poly_int: vect_no_alias_p

[official-gcc.git] / gcc / ChangeLog

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-data-refs.c (vect_no_alias_p): Replace with...
        (vect_compile_time_alias): ...this new function.  Do the calculation
        on poly_ints rather than trees.
        (vect_prune_runtime_alias_test_list): Update call accordingly.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-slp.c (vect_build_slp_tree_1): Handle polynomial
        numbers of units.
        (vect_schedule_slp_instance): Likewise.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-slp.c (vect_get_and_check_slp_defs): Reject
        constant and extern definitions for variable-length vectors.
        (vect_get_constant_vectors): Note that the number of units
        is known to be constant.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-stmts.c (vectorizable_conversion): Treat the number
        of units as polynomial.  Choose between WIDE and NARROW based
        on multiple_p.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-stmts.c (simd_clone_subparts): New function.
        (vectorizable_simd_clone_call): Use it instead of TYPE_VECTOR_SUBPARTS.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-stmts.c (vectorizable_call): Treat the number of
        vectors as polynomial.  Use build_index_vector for
        IFN_GOMP_SIMD_LANE.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-stmts.c (get_load_store_type): Treat the number of
        units as polynomial.  Reject VMAT_ELEMENTWISE and VMAT_STRIDED_SLP
        for variable-length vectors.
        (vectorizable_mask_load_store): Treat the number of units as
        polynomial, asserting that it is constant if the condition has
        already been enforced.
        (vectorizable_store, vectorizable_load): Likewise.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-loop.c (vectorizable_live_operation): Treat the number
        of units as polynomial.  Punt if we can't tell at compile time
        which vector contains the final result.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-loop.c (vectorizable_induction): Treat the number
        of units as polynomial.  Punt on SLP inductions.  Use an integer
        VEC_SERIES_EXPR for variable-length integer reductions.  Use a
        cast of such a series for variable-length floating-point
        reductions.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree.h (build_index_vector): Declare.
        * tree.c (build_index_vector): New function.
        * tree-vect-loop.c (get_initial_defs_for_reduction): Treat the number
        of units as polynomial, forcibly converting it to a constant if
        vectorizable_reduction has already enforced the condition.
        (vect_create_epilog_for_reduction): Likewise.  Use build_index_vector
        to create a {1,2,3,...} vector.
        (vectorizable_reduction): Treat the number of units as polynomial.
        Choose vectype_in based on the largest scalar element size rather
        than the smallest number of units.  Enforce the restrictions
        relied on above.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-data-refs.c (vector_alignment_reachable_p): Treat the
        number of units as polynomial.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.h (vector_sizes, auto_vector_sizes): New typedefs.
        * target.def (autovectorize_vector_sizes): Return the vector sizes
        by pointer, using vector_sizes rather than a bitmask.
        * targhooks.h (default_autovectorize_vector_sizes): Update accordingly.
        * targhooks.c (default_autovectorize_vector_sizes): Likewise.
        * config/aarch64/aarch64.c (aarch64_autovectorize_vector_sizes):
        Likewise.
        * config/arc/arc.c (arc_autovectorize_vector_sizes): Likewise.
        * config/arm/arm.c (arm_autovectorize_vector_sizes): Likewise.
        * config/i386/i386.c (ix86_autovectorize_vector_sizes): Likewise.
        * config/mips/mips.c (mips_autovectorize_vector_sizes): Likewise.
        * omp-general.c (omp_max_vf): Likewise.
        * omp-low.c (omp_clause_aligned_alignment): Likewise.
        * optabs-query.c (can_vec_mask_load_store_p): Likewise.
        * tree-vect-loop.c (vect_analyze_loop): Likewise.
        * tree-vect-slp.c (vect_slp_bb): Likewise.
        * doc/tm.texi: Regenerate.
        * tree-vectorizer.h (current_vector_size): Change from an unsigned int
        to a poly_uint64.
        * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Take
        the vector size as a poly_uint64 rather than an unsigned int.
        (current_vector_size): Change from an unsigned int to a poly_uint64.
        (get_vectype_for_scalar_type): Update accordingly.
        * tree.h (build_truth_vector_type): Take the size and number of
        units as a poly_uint64 rather than an unsigned int.
        (build_vector_type): Add a temporary overload that takes
        the number of units as a poly_uint64 rather than an unsigned int.
        * tree.c (make_vector_type): Likewise.
        (build_truth_vector_type): Take the number of units as a poly_uint64
        rather than an unsigned int.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (get_mask_mode): Take the number of units and length
        as poly_uint64s rather than unsigned ints.
        * targhooks.h (default_get_mask_mode): Update accordingly.
        * targhooks.c (default_get_mask_mode): Likewise.
        * config/i386/i386.c (ix86_get_mask_mode): Likewise.
        * doc/tm.texi: Regenerate.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * omp-general.h (omp_max_vf): Return a poly_uint64 instead of an int.
        * omp-general.c (omp_max_vf): Likewise.
        * omp-expand.c (omp_adjust_chunk_size): Update call to omp_max_vf.
        (expand_omp_simd): Handle polynomial safelen.
        * omp-low.c (omplow_simd_context): Add a default constructor.
        (omplow_simd_context::max_vf): Change from int to poly_uint64.
        (lower_rec_simd_input_clauses): Update accordingly.
        (lower_rec_input_clauses): Likewise.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vectorizer.h (vect_nunits_for_cost): New function.
        * tree-vect-loop.c (vect_model_reduction_cost): Use it.
        * tree-vect-slp.c (vect_analyze_slp_cost_1): Likewise.
        (vect_analyze_slp_cost): Likewise.
        * tree-vect-stmts.c (vect_model_store_cost): Likewise.
        (vect_model_load_cost): Likewise.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-slp.c (vect_record_max_nunits, vect_build_slp_tree_1)
        (vect_build_slp_tree_2, vect_build_slp_tree): Change max_nunits
        from an unsigned int * to a poly_uint64_pod *.
        (calculate_unrolling_factor): New function.
        (vect_analyze_slp_instance): Use it.  Track polynomial max_nunits.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vectorizer.h (_slp_instance::unrolling_factor): Change
        from an unsigned int to a poly_uint64.
        (_loop_vec_info::slp_unrolling_factor): Likewise.
        (_loop_vec_info::vectorization_factor): Change from an int
        to a poly_uint64.
        (MAX_VECTORIZATION_FACTOR): Bump from 64 to INT_MAX.
        (vect_get_num_vectors): New function.
        (vect_update_max_nunits, vect_vf_for_cost): Likewise.
        (vect_get_num_copies): Use vect_get_num_vectors.
        (vect_analyze_data_ref_dependences): Change max_vf from an int *
        to an unsigned int *.
        (vect_analyze_data_refs): Change min_vf from an int * to a
        poly_uint64 *.
        (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
        than an unsigned HOST_WIDE_INT.
        * tree-vect-data-refs.c (vect_analyze_possibly_independent_ddr)
        (vect_analyze_data_ref_dependence): Change max_vf from an int *
        to an unsigned int *.
        (vect_analyze_data_ref_dependences): Likewise.
        (vect_compute_data_ref_alignment): Handle polynomial vf.
        (vect_enhance_data_refs_alignment): Likewise.
        (vect_prune_runtime_alias_test_list): Likewise.
        (vect_shift_permute_load_chain): Likewise.
        (vect_supportable_dr_alignment): Likewise.
        (dependence_distance_ge_vf): Take the vectorization factor as a
        poly_uint64 rather than an unsigned HOST_WIDE_INT.
        (vect_analyze_data_refs): Change min_vf from an int * to a
        poly_uint64 *.
        * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Take
        vfm1 as a poly_uint64 rather than an int.  Make the same change
        for the returned bound_scalar.
        (vect_gen_vector_loop_niters): Handle polynomial vf.
        (vect_do_peeling): Likewise.  Update call to
        vect_gen_scalar_loop_niters and handle polynomial bound_scalars.
        (vect_gen_vector_loop_niters_mult_vf): Assert that the vf must
        be constant.
        * tree-vect-loop.c (vect_determine_vectorization_factor)
        (vect_update_vf_for_slp, vect_analyze_loop_2): Handle polynomial vf.
        (vect_get_known_peeling_cost): Likewise.
        (vect_estimate_min_profitable_iters, vectorizable_reduction): Likewise.
        (vect_worthwhile_without_simd_p, vectorizable_induction): Likewise.
        (vect_transform_loop): Likewise.  Use the lowest possible VF when
        updating the upper bounds of the loop.
        (vect_min_worthwhile_factor): Make static.  Return an unsigned int
        rather than an int.
        * tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Cope with
        polynomial unroll factors.
        (vect_analyze_slp_cost_1, vect_analyze_slp_instance): Likewise.
        (vect_make_slp_decision): Likewise.
        (vect_supported_load_permutation_p): Likewise, and polynomial
        vf too.
        (vect_analyze_slp_cost): Handle polynomial vf.
        (vect_slp_analyze_node_operations): Likewise.
        (vect_slp_analyze_bb_1): Likewise.
        (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
        than an unsigned HOST_WIDE_INT.
        * tree-vect-stmts.c (vectorizable_simd_clone_call, vectorizable_store)
        (vectorizable_load): Handle polynomial vf.
        * tree-vectorizer.c (simduid_to_vf::vf): Change from an int to
        a poly_uint64.
        (adjust_simduid_builtins, shrink_simd_arrays): Update accordingly.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * match.pd: Handle bit operations involving three constants
        and try to fold one pair.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-vect-loop-manip.c: Include gimple-fold.h.
        (slpeel_make_loop_iterate_ntimes): Add step, final_iv and
        niters_maybe_zero parameters.  Handle other cases besides a step of 1.
        (vect_gen_vector_loop_niters): Add a step_vector_ptr parameter.
        Add a path that uses a step of VF instead of 1, but disable it
        for now.
        (vect_do_peeling): Add step_vector, niters_vector_mult_vf_var
        and niters_no_overflow parameters.  Update calls to
        slpeel_make_loop_iterate_ntimes and vect_gen_vector_loop_niters.
        Create a new SSA name if the latter choses to use a ste other
        than zero, and return it via niters_vector_mult_vf_var.
        * tree-vect-loop.c (vect_transform_loop): Update calls to
        vect_do_peeling, vect_gen_vector_loop_niters and
        slpeel_make_loop_iterate_ntimes.
        * tree-vectorizer.h (slpeel_make_loop_iterate_ntimes, vect_do_peeling)
        (vect_gen_vector_loop_niters): Update declarations after above changes.

2018-01-02  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.md (floor<mode>2): Add support for IEEE
        128-bit round to integer instructions.
        (ceil<mode>2): Likewise.
        (btrunc<mode>2): Likewise.
        (round<mode>2): Likewise.

2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        * config/rs6000/rs6000-string.c (expand_block_move): Allow the use of
        unaligned VSX load/store on P8/P9.
        (expand_block_clear): Allow the use of unaligned VSX
        load/store on P8/P9.

2018-01-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000-p8swap.c (swap_feeds_both_load_and_store):
        New function.
        (rs6000_analyze_swaps): Mark a web unoptimizable if it contains a
        swap associated with both a load and a store.

2018-01-02  Andrew Waterman  <andrew@sifive.com>

        * config/riscv/linux.h (ICACHE_FLUSH_FUNC): New.
        * config/riscv/riscv.md (clear_cache): Use it.

2018-01-02  Artyom Skrobov  <tyomitch@gmail.com>

        * web.c: Remove out-of-date comment.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * expr.c (fixup_args_size_notes): Check that any existing
        REG_ARGS_SIZE notes are correct, and don't try to re-add them.
        (emit_single_push_insn_1): Move stack_pointer_delta adjustment to...
        (emit_single_push_insn): ...here.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * rtl.h (CONST_VECTOR_ELT): Redefine to const_vector_elt.
        (const_vector_encoded_nelts): New function.
        (CONST_VECTOR_NUNITS): Redefine to use GET_MODE_NUNITS.
        (const_vector_int_elt, const_vector_elt): Declare.
        * emit-rtl.c (const_vector_int_elt_1): New function.
        (const_vector_elt): Likewise.
        * simplify-rtx.c (simplify_immed_subreg): Avoid taking the address
        of CONST_VECTOR_ELT.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * expr.c: Include rtx-vector-builder.h.
        (const_vector_mask_from_tree): Use rtx_vector_builder and operate
        directly on the tree encoding.
        (const_vector_from_tree): Likewise.
        * optabs.c: Include rtx-vector-builder.h.
        (expand_vec_perm_var): Use rtx_vector_builder and create a repeating
        sequence of "u" values.
        * vec-perm-indices.c: Include rtx-vector-builder.h.
        (vec_perm_indices_to_rtx): Use rtx_vector_builder and operate
        directly on the vec_perm_indices encoding.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * doc/rtl.texi (const_vector): Describe new encoding scheme.
        * Makefile.in (OBJS): Add rtx-vector-builder.o.
        * rtx-vector-builder.h: New file.
        * rtx-vector-builder.c: Likewise.
        * rtl.h (rtx_def::u2): Add a const_vector field.
        (CONST_VECTOR_NPATTERNS): New macro.
        (CONST_VECTOR_NELTS_PER_PATTERN): Likewise.
        (CONST_VECTOR_DUPLICATE_P): Likewise.
        (CONST_VECTOR_STEPPED_P): Likewise.
        (CONST_VECTOR_ENCODED_ELT): Likewise.
        (const_vec_duplicate_p): Check for a duplicated vector encoding.
        (unwrap_const_vec_duplicate): Likewise.
        (const_vec_series_p): Check for a non-duplicated vector encoding.
        Say that the function only returns true for integer vectors.
        * emit-rtl.c: Include rtx-vector-builder.h.
        (gen_const_vec_duplicate_1): Delete.
        (gen_const_vector): Call gen_const_vec_duplicate instead of
        gen_const_vec_duplicate_1.
        (const_vec_series_p_1): Operate directly on the CONST_VECTOR encoding.
        (gen_const_vec_duplicate): Use rtx_vector_builder.
        (gen_const_vec_series): Likewise.
        (gen_rtx_CONST_VECTOR): Likewise.
        * config/powerpcspe/powerpcspe.c: Include rtx-vector-builder.h.
        (swap_const_vector_halves): Take an rtx pointer rather than rtx.
        Build a new vector rather than modifying a CONST_VECTOR in-place.
        (handle_special_swappables): Update call accordingly.
        * config/rs6000/rs6000-p8swap.c: Include rtx-vector-builder.h.
        (swap_const_vector_halves): Take an rtx pointer rather than rtx.
        Build a new vector rather than modifying a CONST_VECTOR in-place.
        (handle_special_swappables): Update call accordingly.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * simplify-rtx.c (simplify_const_binary_operation): Use
        CONST_VECTOR_ELT instead of XVECEXP.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-cfg.c (verify_gimple_assign_ternary): Allow the size of
        the selector elements to be different from the data elements
        if the selector is a VECTOR_CST.
        * tree-vect-stmts.c (vect_gen_perm_mask_any): Use a vector of
        ssizetype for the selector.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * optabs.c (shift_amt_for_vec_perm_mask): Try using series_p
        before testing each element individually.
        * tree-vect-generic.c (lower_vec_perm): Likewise.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * selftest.h (selftest::vec_perm_indices_c_tests): Declare.
        * selftest-run-tests.c (selftest::run_tests): Call it.
        * vector-builder.h (vector_builder::operator ==): New function.
        (vector_builder::operator !=): Likewise.
        * vec-perm-indices.h (vec_perm_indices::series_p): Declare.
        (vec_perm_indices::all_from_input_p): New function.
        * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
        (test_vec_perm_12, selftest::vec_perm_indices_c_tests): Likewise.
        * fold-const.c (fold_ternary_loc): Use tree_to_vec_perm_builder
        instead of reading the VECTOR_CST directly.  Detect whether both
        vector inputs are the same before constructing the vec_perm_indices,
        and update the number of inputs argument accordingly.  Use the
        utility functions added above.  Only construct sel2 if we need to.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * optabs.c (expand_vec_perm_var): Use an explicit encoding for
        the broadcast of the low byte.
        (expand_mult_highpart): Use an explicit encoding for the permutes.
        * optabs-query.c (can_mult_highpart_p): Likewise.
        * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Likewise.
        * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
        (vectorizable_bswap): Likewise.
        * tree-vect-data-refs.c (vect_grouped_store_supported): Use an
        explicit encoding for the power-of-2 permutes.
        (vect_permute_store_chain): Likewise.
        (vect_grouped_load_supported): Likewise.
        (vect_permute_load_chain): Likewise.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * vec-perm-indices.h (vec_perm_indices_to_tree): Declare.
        * vec-perm-indices.c (vec_perm_indices_to_tree): New function.
        * tree-ssa-forwprop.c (simplify_vector_constructor): Use it.
        * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
        * tree-vect-stmts.c (vectorizable_bswap): Likewise.
        (vect_gen_perm_mask_any): Likewise.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * int-vector-builder.h: New file.
        * vec-perm-indices.h: Include int-vector-builder.h.
        (vec_perm_indices): Redefine as an int_vector_builder.
        (auto_vec_perm_indices): Delete.
        (vec_perm_builder): Redefine as a stand-alone class.
        (vec_perm_indices::vec_perm_indices): New function.
        (vec_perm_indices::clamp): Likewise.
        * vec-perm-indices.c: Include fold-const.h and tree-vector-builder.h.
        (vec_perm_indices::new_vector): New function.
        (vec_perm_indices::new_expanded_vector): Update for new
        vec_perm_indices class.
        (vec_perm_indices::rotate_inputs): New function.
        (vec_perm_indices::all_in_range_p): Operate directly on the
        encoded form, without computing elided elements.
        (tree_to_vec_perm_builder): Operate directly on the VECTOR_CST
        encoding.  Update for new vec_perm_indices class.
        * optabs.c (expand_vec_perm_const): Create a vec_perm_indices for
        the given vec_perm_builder.
        (expand_vec_perm_var): Update vec_perm_builder constructor.
        (expand_mult_highpart): Use vec_perm_builder instead of
        auto_vec_perm_indices.
        * optabs-query.c (can_mult_highpart_p): Use vec_perm_builder and
        vec_perm_indices instead of auto_vec_perm_indices.  Use a single
        or double series encoding as appropriate.
        * fold-const.c (fold_ternary_loc): Use vec_perm_builder and
        vec_perm_indices instead of auto_vec_perm_indices.
        * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
        * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
        (vect_permute_store_chain): Likewise.
        (vect_grouped_load_supported): Likewise.
        (vect_permute_load_chain): Likewise.
        (vect_shift_permute_load_chain): Likewise.
        * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
        (vect_transform_slp_perm_load): Likewise.
        (vect_schedule_slp_instance): Likewise.
        * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
        (vectorizable_mask_load_store): Likewise.
        (vectorizable_bswap): Likewise.
        (vectorizable_store): Likewise.
        (vectorizable_load): Likewise.
        * tree-vect-generic.c (lower_vec_perm): Use vec_perm_builder and
        vec_perm_indices instead of auto_vec_perm_indices.  Use
        tree_to_vec_perm_builder to read the vector from a tree.
        * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Take a
        vec_perm_builder instead of a vec_perm_indices.
        (have_whole_vector_shift): Use vec_perm_builder and
        vec_perm_indices instead of auto_vec_perm_indices.  Leave the
        truncation to calc_vec_perm_mask_for_shift.
        (vect_create_epilog_for_reduction): Likewise.
        * config/aarch64/aarch64.c (expand_vec_perm_d::perm): Change
        from auto_vec_perm_indices to vec_perm_indices.
        (aarch64_expand_vec_perm_const_1): Use rotate_inputs on d.perm
        instead of changing individual elements.
        (aarch64_vectorize_vec_perm_const): Use new_vector to install
        the vector in d.perm.
        * config/arm/arm.c (expand_vec_perm_d::perm): Change
        from auto_vec_perm_indices to vec_perm_indices.
        (arm_expand_vec_perm_const_1): Use rotate_inputs on d.perm
        instead of changing individual elements.
        (arm_vectorize_vec_perm_const): Use new_vector to install
        the vector in d.perm.
        * config/powerpcspe/powerpcspe.c (rs6000_expand_extract_even):
        Update vec_perm_builder constructor.
        (rs6000_expand_interleave): Likewise.
        * config/rs6000/rs6000.c (rs6000_expand_extract_even): Likewise.
        (rs6000_expand_interleave): Likewise.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * optabs-query.c (can_vec_perm_var_p): Check whether lowering
        to qimode could truncate the indices.
        * optabs.c (expand_vec_perm_var): Likewise.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * Makefile.in (OBJS): Add vec-perm-indices.o.
        * vec-perm-indices.h: New file.
        * vec-perm-indices.c: Likewise.
        * target.h (vec_perm_indices): Replace with a forward class
        declaration.
        (auto_vec_perm_indices): Move to vec-perm-indices.h.
        * optabs.h: Include vec-perm-indices.h.
        (expand_vec_perm): Delete.
        (selector_fits_mode_p, expand_vec_perm_var): Declare.
        (expand_vec_perm_const): Declare.
        * target.def (vec_perm_const_ok): Replace with...
        (vec_perm_const): ...this new hook.
        * doc/tm.texi.in (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Replace with...
        (TARGET_VECTORIZE_VEC_PERM_CONST): ...this new hook.
        * doc/tm.texi: Regenerate.
        * optabs.def (vec_perm_const): Delete.
        * doc/md.texi (vec_perm_const): Likewise.
        (vec_perm): Refer to TARGET_VECTORIZE_VEC_PERM_CONST.
        * expr.c (expand_expr_real_2): Use expand_vec_perm_const rather than
        expand_vec_perm for constant permutation vectors.  Assert that
        the mode of variable permutation vectors is the integer equivalent
        of the mode that is being permuted.
        * optabs-query.h (selector_fits_mode_p): Declare.
        * optabs-query.c: Include vec-perm-indices.h.
        (selector_fits_mode_p): New function.
        (can_vec_perm_const_p): Check whether targetm.vectorize.vec_perm_const
        is defined, instead of checking whether the vec_perm_const_optab
        exists.  Use targetm.vectorize.vec_perm_const instead of
        targetm.vectorize.vec_perm_const_ok.  Check whether the indices
        fit in the vector mode before using a variable permute.
        * optabs.c (shift_amt_for_vec_perm_mask): Take a mode and a
        vec_perm_indices instead of an rtx.
        (expand_vec_perm): Replace with...
        (expand_vec_perm_const): ...this new function.  Take the selector
        as a vec_perm_indices rather than an rtx.  Also take the mode of
        the selector.  Update call to shift_amt_for_vec_perm_mask.
        Use targetm.vectorize.vec_perm_const instead of vec_perm_const_optab.
        Use vec_perm_indices::new_expanded_vector to expand the original
        selector into bytes.  Check whether the indices fit in the vector
        mode before using a variable permute.
        (expand_vec_perm_var): Make global.
        (expand_mult_highpart): Use expand_vec_perm_const.
        * fold-const.c: Includes vec-perm-indices.h.
        * tree-ssa-forwprop.c: Likewise.
        * tree-vect-data-refs.c: Likewise.
        * tree-vect-generic.c: Likewise.
        * tree-vect-loop.c: Likewise.
        * tree-vect-slp.c: Likewise.
        * tree-vect-stmts.c: Likewise.
        * config/aarch64/aarch64-protos.h (aarch64_expand_vec_perm_const):
        Delete.
        * config/aarch64/aarch64-simd.md (vec_perm_const<mode>): Delete.
        * config/aarch64/aarch64.c (aarch64_expand_vec_perm_const)
        (aarch64_vectorize_vec_perm_const_ok): Fuse into...
        (aarch64_vectorize_vec_perm_const): ...this new function.
        (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
        (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
        * config/arm/arm-protos.h (arm_expand_vec_perm_const): Delete.
        * config/arm/vec-common.md (vec_perm_const<mode>): Delete.
        * config/arm/arm.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
        (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
        (arm_expand_vec_perm_const, arm_vectorize_vec_perm_const_ok): Merge
        into...
        (arm_vectorize_vec_perm_const): ...this new function.  Explicitly
        check for NEON modes.
        * config/i386/i386-protos.h (ix86_expand_vec_perm_const): Delete.
        * config/i386/sse.md (VEC_PERM_CONST, vec_perm_const<mode>): Delete.
        * config/i386/i386.c (ix86_expand_vec_perm_const_1): Update comment.
        (ix86_expand_vec_perm_const, ix86_vectorize_vec_perm_const_ok): Merge
        into...
        (ix86_vectorize_vec_perm_const): ...this new function.  Incorporate
        the old VEC_PERM_CONST conditions.
        * config/ia64/ia64-protos.h (ia64_expand_vec_perm_const): Delete.
        * config/ia64/vect.md (vec_perm_const<mode>): Delete.
        * config/ia64/ia64.c (ia64_expand_vec_perm_const)
        (ia64_vectorize_vec_perm_const_ok): Merge into...
        (ia64_vectorize_vec_perm_const): ...this new function.
        * config/mips/loongson.md (vec_perm_const<mode>): Delete.
        * config/mips/mips-msa.md (vec_perm_const<mode>): Delete.
        * config/mips/mips-ps-3d.md (vec_perm_constv2sf): Delete.
        * config/mips/mips-protos.h (mips_expand_vec_perm_const): Delete.
        * config/mips/mips.c (mips_expand_vec_perm_const)
        (mips_vectorize_vec_perm_const_ok): Merge into...
        (mips_vectorize_vec_perm_const): ...this new function.
        * config/powerpcspe/altivec.md (vec_perm_constv16qi): Delete.
        * config/powerpcspe/paired.md (vec_perm_constv2sf): Delete.
        * config/powerpcspe/spe.md (vec_perm_constv2si): Delete.
        * config/powerpcspe/vsx.md (vec_perm_const<mode>): Delete.
        * config/powerpcspe/powerpcspe-protos.h (altivec_expand_vec_perm_const)
        (rs6000_expand_vec_perm_const): Delete.
        * config/powerpcspe/powerpcspe.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK):
        Delete.
        (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
        (altivec_expand_vec_perm_const_le): Take each operand individually.
        Operate on constant selectors rather than rtxes.
        (altivec_expand_vec_perm_const): Likewise.  Update call to
        altivec_expand_vec_perm_const_le.
        (rs6000_expand_vec_perm_const): Delete.
        (rs6000_vectorize_vec_perm_const_ok): Delete.
        (rs6000_vectorize_vec_perm_const): New function.
        (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
        an element count and rtx array.
        (rs6000_expand_extract_even): Update call accordingly.
        (rs6000_expand_interleave): Likewise.
        * config/rs6000/altivec.md (vec_perm_constv16qi): Delete.
        * config/rs6000/paired.md (vec_perm_constv2sf): Delete.
        * config/rs6000/vsx.md (vec_perm_const<mode>): Delete.
        * config/rs6000/rs6000-protos.h (altivec_expand_vec_perm_const)
        (rs6000_expand_vec_perm_const): Delete.
        * config/rs6000/rs6000.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
        (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
        (altivec_expand_vec_perm_const_le): Take each operand individually.
        Operate on constant selectors rather than rtxes.
        (altivec_expand_vec_perm_const): Likewise.  Update call to
        altivec_expand_vec_perm_const_le.
        (rs6000_expand_vec_perm_const): Delete.
        (rs6000_vectorize_vec_perm_const_ok): Delete.
        (rs6000_vectorize_vec_perm_const): New function.  Remove stray
        reference to the SPE evmerge intructions.
        (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
        an element count and rtx array.
        (rs6000_expand_extract_even): Update call accordingly.
        (rs6000_expand_interleave): Likewise.
        * config/sparc/sparc.md (vec_perm_constv8qi): Delete in favor of...
        * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): ...this
        new function.
        (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * optabs.c (expand_vec_perm_1): Assert that SEL has an integer
        vector mode and that that mode matches the mode of the data
        being permuted.
        (expand_vec_perm): Split handling of non-CONST_VECTOR selectors
        out into expand_vec_perm_var.  Do all CONST_VECTOR handling here,
        directly using expand_vec_perm_1 when forcing selectors into
        registers.
        (expand_vec_perm_var): New function, split out from expand_vec_perm.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * optabs-query.h (can_vec_perm_p): Delete.
        (can_vec_perm_var_p, can_vec_perm_const_p): Declare.
        * optabs-query.c (can_vec_perm_p): Split into...
        (can_vec_perm_var_p, can_vec_perm_const_p): ...these two functions.
        (can_mult_highpart_p): Use can_vec_perm_const_p to test whether a
        particular selector is valid.
        * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
        * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
        (vect_grouped_load_supported): Likewise.
        (vect_shift_permute_load_chain): Likewise.
        * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
        (vect_transform_slp_perm_load): Likewise.
        * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
        (vectorizable_bswap): Likewise.
        (vect_gen_perm_mask_checked): Likewise.
        * fold-const.c (fold_ternary_loc): Likewise.  Don't take
        implementations of variable permutation vectors into account
        when deciding which selector to use.
        * tree-vect-loop.c (have_whole_vector_shift): Don't check whether
        vec_perm_const_optab is supported; instead use can_vec_perm_const_p
        with a false third argument.
        * tree-vect-generic.c (lower_vec_perm): Use can_vec_perm_const_p
        to test whether the constant selector is valid and can_vec_perm_var_p
        to test whether a variable selector is valid.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * optabs-query.h (can_vec_perm_p): Take a const vec_perm_indices *.
        * optabs-query.c (can_vec_perm_p): Likewise.
        * fold-const.c (fold_vec_perm): Take a const vec_perm_indices &
        instead of vec_perm_indices.
        * tree-vectorizer.h (vect_gen_perm_mask_any): Likewise,
        (vect_gen_perm_mask_checked): Likewise,
        * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise,
        (vect_gen_perm_mask_checked): Likewise,

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * optabs-query.h (qimode_for_vec_perm): Declare.
        * optabs-query.c (can_vec_perm_p): Split out qimode search to...
        (qimode_for_vec_perm): ...this new function.
        * optabs.c (expand_vec_perm): Use qimode_for_vec_perm.

2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        * rtlanal.c (canonicalize_condition): Return 0 if final rtx
        does not have a conditional at the top.

2018-01-02  Richard Biener  <rguenther@suse.de>

        * ipa-inline.c (big_speedup_p): Fix expression.

2018-01-02  Jan Hubicka  <hubicka@ucw.cz>

        PR target/81616
        * config/i386/x86-tune-costs.h: Increase cost of integer load costs
        for generic 4->6.

2018-01-02  Jan Hubicka  <hubicka@ucw.cz>

        PR target/81616
        Generic tuning.
        * x86-tune-costs.h (generic_cost): Reduce cost of FDIV 20->17,
        cost of sqrt 20->14, DIVSS 18->13, DIVSD 32->17, SQRtSS 30->14
        and SQRTsD 58->18, cond_not_taken_branch_cost. 2->1. Increase
        cond_taken_branch_cost 3->4.

2018-01-01  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/83581
        * tree-loop-distribution.c (pass_loop_distribution::execute): Return
        TODO_cleanup_cfg if any changes have been made.

        PR middle-end/83608
        * expr.c (store_expr_with_bounds): Use simplify_gen_subreg instead of
        convert_modes if target mode has the right side, but different mode
        class.

        PR middle-end/83609
        * expr.c (expand_assignment): Fix up a typo in simplify_gen_subreg
        last argument when extracting from CONCAT.  If either from_real or
        from_imag is NULL, use expansion through memory.  If result is not
        a CONCAT and simplify_gen_subreg fails, try to simplify_gen_subreg
        the parts directly to inner mode, if even that fails, use expansion
        through memory.

        PR middle-end/83623
        * expmed.c (expand_shift_1): For 2-byte rotates by BITS_PER_UNIT,
        check for bswap in mode rather than HImode and use that in expand_unop
        too.

2017-12-31  Jakub Jelinek  <jakub@redhat.com>

        PR target/83536
        * config/i386/i386.c (ix86_attribute_table): Remove excess
        initializer for "shared" attribute.

2017-12-30  Tom de Vries  <tom@codesourcery.com>

        PR libgomp/83046
        * omp-expand.c (expand_omp_target): If in_lto_p, mark offload_funcs with
        DECL_PRESERVE_P.
        * lto-streamer-out.c (prune_offload_funcs): New function.  Remove
        offload_funcs entries that no longer have a corresponding cgraph_node.
        Mark the remaining ones as DECL_PRESERVE_P.
        (output_lto): Call prune_offload_funcs.

2017-12-30  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (vgf2p8affineinvqb_<mode><mask_name>,
        vgf2p8affineqb_<mode><mask_name>, vgf2p8mulb_<mode><mask_name>,
        vpshrd_<mode><mask_name>, vpshld_<mode><mask_name>,
        vpshrdv_<mode>, vpshrdv_<mode>_mask, vpshrdv_<mode>_maskz,
        vpshrdv_<mode>_maskz_1, vpshldv_<mode>, vpshldv_<mode>_mask,
        vpshldv_<mode>_maskz, vpshldv_<mode>_maskz_1, vpdpbusd_<mode>,
        vpdpbusd_<mode>_mask, vpdpbusd_<mode>_maskz, vpdpbusd_<mode>_maskz_1,
        vpdpbusds_<mode>, vpdpbusds_<mode>_mask, vpdpbusds_<mode>_maskz,
        vpdpbusds_<mode>_maskz_1, vpdpwssd_<mode>, vpdpwssd_<mode>_mask,
        vpdpwssd_<mode>_maskz, vpdpwssd_<mode>_maskz_1, vpdpwssds_<mode>,
        vpdpwssds_<mode>_mask, vpdpwssds_<mode>_maskz,
        vpdpwssds_<mode>_maskz_1, vaesdec_<mode>, vaesdeclast_<mode>,
        vaesenc_<mode>, vpclmulqdq_<mode>,
        avx512vl_vpshufbitqmb<mode><mask_scalar_merge_name>): Formatting fixes.

2017-12-28  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * builtins.def: (_Float<N> and _Float<N>X BUILT_IN_CEIL): Add
        _Float<N> and _Float<N>X variants for rounding built-in
        functions.
        (_Float<N> and _Float<N>X BUILT_IN_FLOOR): Likewise.
        (_Float<N> and _Float<N>X BUILT_IN_NEARBYINT): Likewise.
        (_Float<N> and _Float<N>X BUILT_IN_RINT): Likewise.
        (_Float<N> and _Float<N>X BUILT_IN_ROUND): Likewise.
        (_Float<N> and _Float<N>X BUILT_IN_TRUNC): Likewise.
        * builtins.c (mathfn_built_in_2): Likewise.
        * internal-fn.def (CEIL): Likewise.
        (FLOOR): Likewise.
        (NEARBYINT): Likewise.
        (RINT): Likewise.
        (ROUND): Likewise.
        (TRUNC): Likewise.
        * convert.c (convert_to_integer_1): Likewise.
        * fold-const.c (tree_call_nonnegative_warnv_p): Likewise.
        (integer_valued_real_call_p): Likewise.
        * fold-const-call.c (fold_const_call_ss): Likewise.
        * gencfn-macros.c (print_case_cfn): Change CFN and operator
        printers to take a const char * suffix instead of a bool.
        (print_define_operator_list): Likewise.
        (fltall_suffixes): New list of suffixes, that include the
        traditional suffixes as well as all of the _Float<N> and
        _Float<N>X suffixes.
        (main): For _Float<N> and _Float<N>X functions, emit both
        <name>_FN and <name>_ALL variants.  The <macro>_FN variant only
        has the _Float<N> and _Float<N>X case names or operators.  The
        <name>_ALL variant has both the traditional and the
        _Float<N>/_Float<N>X case names or operators.
        * match.pd (COPYSIGN optimizations): Provide optimizations for
        _Float<N> and _Float<N>X types where possible.
        (MIN/MAX optimizations): Likewise.
        (sqrt optimizations): Likewise.
        (rounding optimizations): Likewise.

2017-12-28  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/powerpcspe/powerpcspe.md (ieee_128bit_negative_zero): Use
        gen_int_mode rather than GEN_INT.
        * config/rs6000/rs6000.md (ieee_128bit_negative_zero): Likewise.

2017-12-28  Richard Sandiford  <richard.sandiford@linaro.org>

        * emit-rtl.c (gen_const_vec_series): Use valid_for_const_vector_p
        instead of CONSTANT_P.
        (gen_vec_series): Likewise.
        * simplify-rtx.c (simplify_binary_operation_1): Likewise.

2017-12-28  Andreas Schwab  <schwab@linux-m68k.org>

        * config/m68k/m68k.md (ashrdi3_const1, lshrdi3_const1): Add
        CC_STATUS_INIT.

2017-12-27  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * config/aarch64/aarch64-simd.md (aarch64_ld1x2<VQ:mode>): New.
        (aarch64_ld1x2<VDC:mode>): Likewise.
        (aarch64_simd_ld1<mode>_x2): Likewise.
        (aarch64_simd_ld1<mode>_x2): Likewise.
        * config/aarch64/arm_neon.h (vld1_u8_x2): New.
        (vld1_s8_x2): Likewise.
        (vld1_u16_x2): Likewise.
        (vld1_s16_x2): Likewise.
        (vld1_u32_x2): Likewise.
        (vld1_s32_x2): Likewise.
        (vld1_u64_x2): Likewise.
        (vld1_s64_x2): Likewise.
        (vld1_f16_x2): Likewise.
        (vld1_f32_x2): Likewise.
        (vld1_f64_x2): Likewise.
        (vld1_p8_x2): Likewise.
        (vld1_p16_x2): Likewise.
        (vld1_p64_x2): Likewise.
        (vld1q_u8_x2): Likewise.
        (vld1q_s8_x2): Likewise.
        (vld1q_u16_x2): Likewise.
        (vld1q_s16_x2): Likewise.
        (vld1q_u32_x2): Likewise.
        (vld1q_s32_x2): Likewise.
        (vld1q_u64_x2): Likewise.
        (vld1q_s64_x2): Likewise.
        (vld1q_f16_x2): Likewise.
        (vld1q_f32_x2): Likewise.
        (vld1q_f64_x2): Likewise.
        (vld1q_p8_x2): Likewise.
        (vld1q_p16_x2): Likewise.
        (vld1q_p64_x2): Likewise.

2017-12-27  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/83552
        * tree-ssa-strlen.c (fold_strstr_to_strncmp): Assign result
        of get_string_lenth to a SSA_NAME if not a GIMPLE value.

2017-12-27  Tom de Vries  <tom@codesourcery.com>

        * config/nvptx/nvptx.c (nvptx_option_override): Disable
        -gstatement-frontiers.

2017-12-26  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/83513
        * sel-sched.c (sel_rank_for_schedule): Order by non-zero usefulness
        before priority comparison.

2017-12-25  Jakub Jelinek  <jakub@redhat.com>

        PR target/83488
        * config/i386/i386.opt (-mavx512vpopcntdq, -mmavx512bitalg): Move from
        ix86_isa_flags2 to ix86_isa_flags.
        * config/i386/i386-c.c (ix86_target_macros_internal): Test
        OPTION_MASK_ISA_AVX512BITALG and OPTION_MASK_ISA_AVX512VPOPCNTDQ in
        isa_flags rather than isa_flags2.
        * config/i386/i386.c (ix86_target_string): Move -mavx512vpopcntdq
        and -mavx512bitalg from isa2_opts to isa_opts.
        (ix86_option_override_internal): Test OPTION_MASK_ISA_AVX512VPOPCNTDQ
        in x_ix86_isa_flags_explicit rather than x_ix86_isa_flags2_explicit
        and set it in x_ix86_isa_flags rather than x_ix86_isa_flags2.
        Formatting fixes.
        (def_builtin): Treat OPTION_MASK_ISA_AVX512BW or
        OPTION_MASK_ISA_AVX512F ored with another option similarly to
        OPTION_MASK_ISA_AVX512VL.  Even for OPTION_MASK_ISA_AVX512VL don't
        clear it if mask is just OPTION_MASK_ISA_AVX512VL itself.
        (ix86_expand_builtin): Don't handle OPTION_MASK_ISA_GFNI and
        OPTION_MASK_ISA_VPCLMULQDQ specially, instead handle
        OPTION_MASK_ISA_AVX512BW and OPTION_MASK_ISA_AVX512F that way.
        * config/i386/i386-builtin.def: Move AVX512VPOPCNTDQ and AVX512BITALG
        builtins from bdesc_args2 to bdesc_args section.
        (__builtin_ia32_compressstoreuqi512_mask,
        __builtin_ia32_compressstoreuhi512_mask,
        __builtin_ia32_compressstoreuqi256_mask,
        __builtin_ia32_expandloadqi512_mask,
        __builtin_ia32_expandloadqi512_maskz,
        __builtin_ia32_expandloadhi512_mask,
        __builtin_ia32_expandloadhi512_maskz,
        __builtin_ia32_compressqi512_mask, __builtin_ia32_compresshi512_mask,
        __builtin_ia32_compressqi256_mask, __builtin_ia32_expandqi512_mask,
        __builtin_ia32_expandqi512_maskz, __builtin_ia32_expandhi512_mask,
        __builtin_ia32_expandhi512_maskz, __builtin_ia32_expandqi256_mask,
        __builtin_ia32_expandqi256_maskz, __builtin_ia32_vpshrd_v32hi_mask,
        __builtin_ia32_vpshld_v32hi_mask, __builtin_ia32_vpshrdv_v32hi_mask,
        __builtin_ia32_vpshrdv_v32hi_maskz, __builtin_ia32_vpshldv_v32hi_mask,
        __builtin_ia32_vpshldv_v32hi_maskz,
        __builtin_ia32_vpopcountb_v64qi_mask,
        __builtin_ia32_vpopcountw_v32hi_mask,
        __builtin_ia32_vpshufbitqmb512_mask,
        __builtin_ia32_vpshufbitqmb256_mask): Add
        " | OPTION_MASK_ISA_AVX512BW".
        (__builtin_ia32_expandloadqi256_mask,
        __builtin_ia32_expandloadqi256_maskz,
        __builtin_ia32_vpopcountb_v32qi_mask): Add
        " | OPTION_MASK_ISA_AVX512VL | OPTION_MASK_ISA_AVX512BW".
        (__builtin_ia32_expandloadhi256_mask,
        __builtin_ia32_expandloadhi256_maskz,
        __builtin_ia32_expandloadqi128_mask,
        __builtin_ia32_expandloadqi128_maskz,
        __builtin_ia32_expandloadhi128_mask,
        __builtin_ia32_expandloadhi128_maskz,
        __builtin_ia32_vpshrd_v16hi, __builtin_ia32_vpshrd_v16hi_mask,
        __builtin_ia32_vpshrd_v8hi, __builtin_ia32_vpshrd_v8hi_mask,
        __builtin_ia32_vpshrd_v8si, __builtin_ia32_vpshrd_v8si_mask,
        __builtin_ia32_vpshrd_v4si, __builtin_ia32_vpshrd_v4si_mask,
        __builtin_ia32_vpshrd_v4di, __builtin_ia32_vpshrd_v4di_mask,
        __builtin_ia32_vpshrd_v2di, __builtin_ia32_vpshrd_v2di_mask,
        __builtin_ia32_vpshld_v16hi, __builtin_ia32_vpshld_v16hi_mask,
        __builtin_ia32_vpshld_v8hi, __builtin_ia32_vpshld_v8hi_mask,
        __builtin_ia32_vpshld_v8si, __builtin_ia32_vpshld_v8si_mask,
        __builtin_ia32_vpshld_v4si, __builtin_ia32_vpshld_v4si_mask,
        __builtin_ia32_vpshld_v4di, __builtin_ia32_vpshld_v4di_mask,
        __builtin_ia32_vpshld_v2di, __builtin_ia32_vpshld_v2di_mask,
        __builtin_ia32_vpshrdv_v16hi, __builtin_ia32_vpshrdv_v16hi_mask,
        __builtin_ia32_vpshrdv_v16hi_maskz, __builtin_ia32_vpshrdv_v8hi,
        __builtin_ia32_vpshrdv_v8hi_mask, __builtin_ia32_vpshrdv_v8hi_maskz,
        __builtin_ia32_vpshrdv_v8si, __builtin_ia32_vpshrdv_v8si_mask,
        __builtin_ia32_vpshrdv_v8si_maskz, __builtin_ia32_vpshrdv_v4si,
        __builtin_ia32_vpshrdv_v4si_mask, __builtin_ia32_vpshrdv_v4si_maskz,
        __builtin_ia32_vpshrdv_v4di, __builtin_ia32_vpshrdv_v4di_mask,
        __builtin_ia32_vpshrdv_v4di_maskz, __builtin_ia32_vpshrdv_v2di,
        __builtin_ia32_vpshrdv_v2di_mask, __builtin_ia32_vpshrdv_v2di_maskz,
        __builtin_ia32_vpshldv_v16hi, __builtin_ia32_vpshldv_v16hi_mask,
        __builtin_ia32_vpshldv_v16hi_maskz, __builtin_ia32_vpshldv_v8hi,
        __builtin_ia32_vpshldv_v8hi_mask, __builtin_ia32_vpshldv_v8hi_maskz,
        __builtin_ia32_vpshldv_v8si, __builtin_ia32_vpshldv_v8si_mask,
        __builtin_ia32_vpshldv_v8si_maskz, __builtin_ia32_vpshldv_v4si,
        __builtin_ia32_vpshldv_v4si_mask, __builtin_ia32_vpshldv_v4si_maskz,
        __builtin_ia32_vpshldv_v4di, __builtin_ia32_vpshldv_v4di_mask,
        __builtin_ia32_vpshldv_v4di_maskz, __builtin_ia32_vpshldv_v2di,
        __builtin_ia32_vpshldv_v2di_mask, __builtin_ia32_vpshldv_v2di_maskz,
        __builtin_ia32_vpopcountb_v32qi, __builtin_ia32_vpopcountb_v16qi,
        __builtin_ia32_vpopcountb_v16qi_mask, __builtin_ia32_vpopcountw_v16hi,
        __builtin_ia32_vpopcountw_v16hi_mask, __builtin_ia32_vpopcountw_v8hi,
        __builtin_ia32_vpopcountw_v8hi_mask): Add
        " | OPTION_MASK_ISA_AVX512VL".
        * config/i386/avx512vbmi2intrin.h (_mm512_shrdi_epi16,
        _mm512_shrdi_epi32, _mm512_mask_shrdi_epi32, _mm512_maskz_shrdi_epi32,
        _mm512_shrdi_epi64, _mm512_mask_shrdi_epi64, _mm512_maskz_shrdi_epi64,
        _mm512_shldi_epi16, _mm512_shldi_epi32, _mm512_mask_shldi_epi32,
        _mm512_maskz_shldi_epi32, _mm512_shldi_epi64, _mm512_mask_shldi_epi64,
        _mm512_maskz_shldi_epi64, _mm512_shrdv_epi16, _mm512_shrdv_epi32,
        _mm512_mask_shrdv_epi32, _mm512_maskz_shrdv_epi32, _mm512_shrdv_epi64,
        _mm512_mask_shrdv_epi64, _mm512_maskz_shrdv_epi64, _mm512_shldv_epi16,
        _mm512_shldv_epi32, _mm512_mask_shldv_epi32, _mm512_maskz_shldv_epi32,
        _mm512_shldv_epi64, _mm512_mask_shldv_epi64,
        _mm512_maskz_shldv_epi64): Don't require avx512bw for these intrinsics.
        * config/i386/avx512bitalgintrin.h (_mm_bitshuffle_epi64_mask,
        _mm_mask_bitshuffle_epi64_mask): Likewise.
        * common/config/i386/i386-common.c
        (OPTION_MASK_ISA_AVX512VPOPCNTDQ_SET,
        OPTION_MASK_ISA_AVX512BITALG_SET): Or in OPTION_MASK_ISA_AVX512F_SET.
        (OPTION_MASK_ISA_AVX512F_UNSET): Or in
        OPTION_MASK_ISA_AVX512VPOPCNTDQ_UNSET and
        OPTION_MASK_ISA_AVX512BITALG_UNSET.
        (OPTION_MASK_ISA2_AVX512F_UNSET,
        OPTION_MASK_ISA2_GENERAL_REGS_ONLY_UNSET): Define.
        (ix86_handle_option): For -mno-general-regs-only, clear from
        ix86_isa_flags2 OPTION_MASK_ISA2_GENERAL_REGS_ONLY_UNSET rather than
        just OPTION_MASK_ISA_MPX.  For -mno-sse{,2,3,4,4.1,4.2,avx,avx2} and
        -mno-ssse3 clear OPTION_MASK_ISA2_AVX512F_UNSET bits from
        ix86_isa_flags2.  For -mno-avx512f likewise, instead of masking
        individually listed ISAs.  For -m{,no-}avx512{vpopcntdq,bitalg} adjust
        for moving from ix86_isa_flags2 to ix86_isa_flags.

2017-12-23  Jakub Jelinek  <jakub@redhat.com>

        PR c++/83553
        * fold-const.c (struct contains_label_data): New type.
        (contains_label_1): Return non-NULL even for CASE_LABEL_EXPR, unless
        inside of a SWITCH_BODY seen during the walk.
        (contains_label_p): Use walk_tree instead of
        walk_tree_without_duplicates, prepare data for contains_label_1 and
        provide own pset.

2017-12-22  Jakub Jelinek  <jakub@redhat.com>

        PR debug/83547
        * tree-iterator.c (alloc_stmt_list): Start with cleared
        TREE_SIDE_EFFECTS regardless whether a new STATEMENT_LIST is allocated
        or old one reused.

        PR target/83488
        * config/i386/avx512vnniintrin.h: Don't check for __AVX512F__ nor
        enable avx512f explicitly in #pragma GCC target.
        * config/i386/i386-builtin.def (__builtin_ia32_vpdpbusd_v8si,
        __builtin_ia32_vpdpbusd_v8si_mask, __builtin_ia32_vpdpbusd_v8si_maskz,
        __builtin_ia32_vpdpbusd_v4si, __builtin_ia32_vpdpbusd_v4si_mask,
        __builtin_ia32_vpdpbusd_v4si_maskz, __builtin_ia32_vpdpbusds_v8si,
        __builtin_ia32_vpdpbusds_v8si_mask,
        __builtin_ia32_vpdpbusds_v8si_maskz, __builtin_ia32_vpdpbusds_v4si,
        __builtin_ia32_vpdpbusds_v4si_mask,
        __builtin_ia32_vpdpbusds_v4si_maskz, __builtin_ia32_vpdpwssd_v8si,
        __builtin_ia32_vpdpwssd_v8si_mask, __builtin_ia32_vpdpwssd_v8si_maskz,
        __builtin_ia32_vpdpwssd_v4si, __builtin_ia32_vpdpwssd_v4si_mask,
        __builtin_ia32_vpdpwssd_v4si_maskz, __builtin_ia32_vpdpwssds_v8si,
        __builtin_ia32_vpdpwssds_v8si_mask,
        __builtin_ia32_vpdpwssds_v8si_maskz, __builtin_ia32_vpdpwssds_v4si,
        __builtin_ia32_vpdpwssds_v4si_mask,
        __builtin_ia32_vpdpwssds_v4si_maskz): Use
        OPTION_MASK_ISA_AVX512VNNI | OPTION_MASK_ISA_AVX512VL instead of
        just OPTION_MASK_ISA_AVX512VNNI.

2017-12-22  Martin Jambor  <mjambor@suse.cz>

        PR lto/82027
        * lto-cgraph.c (output_cgraph_opt_summary_p): Also check former
        clones.

2017-12-22  Julia Koval  <julia.koval@intel.com>
            Sebastian Peryt  <sebastian.peryt@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_AVX512BITALG_SET,
        OPTION_MASK_ISA_AVX512BITALG_UNSET): New.
        (ix86_handle_option): Handle -mavx512bitalg, fix 4VNNIW formatting.
        * config.gcc: Add avx512vpopcntdqvlintrin.h and avx512bitalgintrin.h.
        * config/i386/avx512bitalgintrin.h (_mm512_popcnt_epi8, _mm512_popcnt_epi16,
        _mm512_mask_popcnt_epi8, _mm512_maskz_popcnt_epi8, _mm512_mask_popcnt_epi16,
        _mm512_maskz_popcnt_epi16, _mm512_bitshuffle_epi64_mask, _mm256_popcnt_epi8,
        _mm512_mask_bitshuffle_epi64_mask, _mm256_mask_popcnt_epi8, _mm_popcnt_epi8,
        _mm256_maskz_popcnt_epi8, _mm_bitshuffle_epi64_mask, _mm256_popcnt_epi16,
        _mm_mask_bitshuffle_epi64_mask, _mm256_bitshuffle_epi64_mask,
        _mm256_mask_bitshuffle_epi64_mask, _mm_popcnt_epi16, _mm_maskz_popcnt_epi8,
        _mm256_mask_popcnt_epi16, _mm256_maskz_popcnt_epi16, _mm_mask_popcnt_epi8,
        _mm_mask_popcnt_epi16, _mm_maskz_popcnt_epi16): New intrinsics.
        * config/i386/avx512vpopcntdqvlintrin.h (_mm_popcnt_epi32, _mm_popcnt_epi64,
        _mm_mask_popcnt_epi32, _mm_maskz_popcnt_epi32, _mm256_popcnt_epi32,
        _mm256_mask_popcnt_epi32, _mm256_maskz_popcnt_epi32, _mm_mask_popcnt_epi64,
        _mm_maskz_popcnt_epi64, _mm256_popcnt_epi64, _mm256_mask_popcnt_epi64,
        _mm256_maskz_popcnt_epi64): New intrinsics.
        * config/i386/cpuid.h (bit_AVX512BITALG): New bit.
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mavx512bitalg.
        * config/i386/i386-builtin-types.def (V64QI_FTYPE_V64QI, V64QI_FTYPE_V64QI,
        V4DI_FTYPE_V4DI, UHI_FTYPE_V2DI_V2DI_UHI, USI_FTYPE_V4DI_V4DI_USI,
        V4SI_FTYPE_V4SI_V4SI_UHI, V8SI_FTYPE_V8SI_V8SI_UHI): New types.
        * config/i386/i386-builtin.def (__builtin_ia32_vpopcountq_v4di,
        __builtin_ia32_vpopcountq_v4di_mask, __builtin_ia32_vpopcountq_v2di,
        __builtin_ia32_vpopcountq_v2di_mask, __builtin_ia32_vpopcountd_v4si,
        __builtin_ia32_vpopcountd_v4si_mask, __builtin_ia32_vpopcountd_v8si,
        __builtin_ia32_vpopcountd_v8si_mask, __builtin_ia32_vpopcountb_v64qi,
        __builtin_ia32_vpopcountb_v64qi_mask, __builtin_ia32_vpopcountb_v32qi,
        __builtin_ia32_vpopcountb_v32qi_mask, __builtin_ia32_vpopcountb_v16qi,
        __builtin_ia32_vpopcountb_v16qi_mask, __builtin_ia32_vpopcountw_v32hi,
        __builtin_ia32_vpopcountw_v32hi_mask, __builtin_ia32_vpopcountw_v16hi,
        __builtin_ia32_vpopcountw_v16hi_mask, __builtin_ia32_vpopcountw_v8hi,
        __builtin_ia32_vpopcountw_v8hi_mask, __builtin_ia32_vpshufbitqmb128_mask,
        __builtin_ia32_vpshufbitqmb256_mask,
        __builtin_ia32_vpshufbitqmb512_mask): New builtins.
        * config/i386/i386-c.c (__AVX512BITALG__): New.
        * config/i386/i386.c (isa2_opts): Add -mavx512bitalg.
        (ix86_valid_target_attribute_inner_p): Ditto.
        (ix86_expand_args_builtin): Handle new types.
        * config/i386/i386.h (TARGET_AVX512BITALG, TARGET_AVX512BITALG_P): New.
        * config/i386/i386.opt: Add -mavx512bitalg.
        * config/i386/immintrin.h: Add avx512vpopcntdqvlintrin.h and
        avx512bitalgintrin.h.
        * config/i386/sse.md (VI48_AVX512VLBW): New iterator.
        (vpopcount<mode><mask_name>): Add more types.
        (avx512vl_vpshufbitqmb<mode><mask_scalar_merge_name>): New.
        * doc/invoke.texi: Add -mavx512bitalg and -mavx512vpopcntdq.

2017-12-22  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_AVX512VNNI_SET):
        Or in OPTION_MASK_ISA_AVX512F_SET.
        (OPTION_MASK_ISA_AVX512F_UNSET): Or in
        OPTION_MASK_ISA_AVX512VNNI_UNSET.
        (ix86_handle_option): Adjust for
        OPTION_MASK_ISA_AVX512VNNI_*SET being in ix86_isa_flags.
        * config/i386/i386-builtin.def: Move VNNI builtins from ARGS2
        section to ARGS.
        * config/i386/i386-c.c: Check for OPTION_MASK_ISA_AVX512VNNI in
        isa_flag instead of isa_flag2.
        * config/i386/i386.c (ix86_target_string): Move -mavx512vnni from
        isa_opts2 to isa_opts.
        * config/i386/i386.opt (mavx512vnni): Move from ix86_isa_flags2
        to ix86_isa_flags.

2017-12-22  Mike Stump  <mikestump@comcast.net>
            Eric Botcazou  <ebotcazou@adacore.com>

        * doc/extend.texi (Loop-Specific Pragmas): Document pragma GCC unroll.

2017-12-21  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/83487
        * config/i386/i386.c (ix86_function_arg_boundary): Return
        PARM_BOUNDARY for TYPE_EMPTY_P types.

        PR c/83448
        * gimple-ssa-sprintf.c (maybe_warn): Don't call set_caret_index
        if navail is >= dir.len.

2017-12-21  Steve Ellcey  <sellcey@cavium.com>

        * config/aarch64/t-aarch64-linux (MULTILIB_OSDIRNAMES): Fix
        triplet for ilp32.

2017-12-21  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/80747
        PR rtl-optimization/83512
        * cfgrtl.c (force_nonfallthru_and_redirect): When splitting
        succ edge from ENTRY, copy partition from e->dest to the newly
        created bb.
        * bb-reorder.c (reorder_basic_blocks_simple): If last_tail is
        ENTRY, use BB_PARTITION of its successor block as current_partition.
        Don't copy partition when splitting succ edge from ENTRY.

        PR tree-optimization/83523
        * tree-ssa-math-opts.c (is_widening_mult_p): Return false if
        for INTEGER_TYPE TYPE_OVERFLOW_TRAPS.
        (convert_mult_to_fma): Likewise.

        PR tree-optimization/83521
        * tree-ssa-phiopt.c (factor_out_conditional_conversion): Use
        gimple_build_assign without code on result of
        fold_build1 (VIEW_CONVERT_EXPR, ...), as it might not create
        a VIEW_CONVERT_EXPR.

2017-12-21  Andrew Pinski  <apinski@cavium.com>
            Steve Ellcey  <sellcey@cavium.com>

        * config/aarch64/t-aarch64-linux (MULTILIB_OSDIRNAMES): Handle
        multi-arch for ilp32.

2017-12-21  Uros Bizjak  <ubizjak@gmail.com>

        PR target/83467
        * config/i386/i386.md (*ashl<mode>3_mask): Add operand
        constraints to operand 2.
        (*ashl<mode>3_mask_1): Ditto.
        (*<shift_insn><mode>3_mask): Ditto.
        (*<shift_insn><mode>3_mask_1): Ditto.
        (*<rotate_insn><mode>3_mask): Ditto.
        (*<rotate_insn><mode>3_mask_1): Ditto.

2017-12-21  Alexandre Oliva  <aoliva@redhat.com>

        * reorg.c (make_return_insns): Reemit each insn with its own location.

2017-12-21  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64.c (aarch64_expand_vector_init): Modify code
        generation for cases where splatting a value is not useful.
        * simplify-rtx.c (simplify_ternary_operation): Simplify vec_merge
        across a vec_duplicate and a paradoxical subreg forming a vector
        mode to a vec_concat.

2017-12-21  James Greenhalgh  <james.greenhalgh@arm.com>

        * combine.c (simplify_set): Do not transform subregs to zero_extends
        if the destination is not a scalar int mode.

2017-12-21  Eric Botcazou  <ebotcazou@adacore.com>

        PR c++/82872
        * convert.c (convert_to_integer_1) <POINTER_TYPE>: Do not return the
        shared zero if the input has overflowed.

2017-12-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/driver-arm.c (arm_cpu_table): Specify dotprod
        support for Cortex-A55 and Cortex-A75.

2017-12-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * common/config/arm/arm-common.c (compare_opt_names): Add function
        comment.  Use strcmp instead of manual loop.

2017-12-21  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/83509
        * gcov-dump.c (dump_gcov_file): Do not read info about
        support_unexecuted_blocks for gcda files.

2017-12-21  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/82973
        * emit-rtl.h (valid_for_const_vec_duplicate_p): Rename to ...
        (valid_for_const_vector_p): ... this.
        * emit-rtl.c (valid_for_const_vec_duplicate_p): Rename to ...
        (valid_for_const_vector_p): ... this.  Adjust function comment.
        (gen_vec_duplicate): Adjust caller.
        * optabs.c (expand_vector_broadcast): Likewise.
        * simplify-rtx.c (simplify_const_unary_operation): Don't optimize into
        CONST_VECTOR if some element isn't simplified valid_for_const_vector_p
        constant.
        (simplify_const_binary_operation): Likewise.  Use CONST_FIXED_P macro
        instead of GET_CODE == CONST_FIXED.
        (simplify_subreg): Use CONST_FIXED_P macro instead of
        GET_CODE == CONST_FIXED.

        PR target/83488
        * config/i386/i386.c (ix86_target_string): Move -mavx512vbmi2 and
        -mshstk entries from isa_opts2 to isa_opts and -mhle, -mmovbe,
        -mclzero and -mmwaitx entries from isa_opts to isa_opts2.
        (ix86_option_override_internal): Adjust for
        OPTION_MASK_ISA_{HLE,MOVBE,CLZERO,MWAITX} moving to ix86_isa_flags2
        and OPTION_MASK_ISA_SHSTK moving to ix86_isa_flags.
        (BDESC_VERIFYS): Remove SPECIAL_ARGS2 related checks.
        (ix86_init_mmx_sse_builtins): Remove bdesc_special_args2 handling.
        Use def_builtin2 instead of def_builtin for OPTION_MASK_ISA_MWAITX
        and OPTION_MASK_ISA_CLZERO builtins.  Use def_builtin instead of
        def_builtin2 for CET builtins.
        (ix86_expand_builtin): Remove bdesc_special_args2 handling.  Fix
        up formatting in IX86_BUILTIN_RDPID code.
        * config/i386/i386-builtin.def: Move VBMI2 builtins from SPECIAL_ARGS2
        section to SPECIAL_ARGS and from ARGS2 section to ARGS.
        * config/i386/i386.opt (mavx512vbmi2, mshstk): Move from
        ix86_isa_flags2 to ix86_isa_flags.
        (mhle, mmovbe, mclzero, mmwaitx): Move from ix86_isa_flags to
        ix86_isa_flags2.
        * config/i386/i386-c.c (ix86_target_macros_internal): Check for
        OPTION_MASK_ISA_{CLZERO,MWAITX} in isa_flag2 instead of isa_flag.
        Check for OPTION_MASK_ISA_{SHSTK,AVX512VBMI2} in isa_flag instead
        of isa_flag2.
        * common/config/i386/i386-common.c (OPTION_MASK_ISA_AVX512VBMI2_SET):
        Or in OPTION_MASK_ISA_AVX512F_SET.
        (OPTION_MASK_ISA_AVX512F_UNSET): Or in
        OPTION_MASK_ISA_AVX512VBMI2_UNSET.
        (ix86_handle_option): Adjust for
        OPTION_MASK_ISA_{SHSTK,AVX512VBMI2}_*SET being in ix86_isa_flags
        and OPTION_MASK_ISA_{MOVBE,MWAITX,CLZERO}_*SET in ix86_isa_flags2.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-data-ref.h (prune_runtime_alias_test_list): Take the
        factor as a poly_uint64 rather than an unsigned HOST_WIDE_INT.
        * tree-data-ref.c (prune_runtime_alias_test_list): Likewise.
        Track polynomial offsets.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-data-refs.c (vect_compute_data_ref_alignment):
        Treat drb->init as a poly_int.  Fail if its misalignment wrt
        vector_alignment isn't known.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vectorizer.h (_loop_vec_info): Add a versioning_threshold
        field.
        (LOOP_VINFO_VERSIONING_THRESHOLD): New macro
        (vect_loop_versioning): Take the loop versioning threshold as a
        separate parameter.
        * tree-vect-loop-manip.c (vect_loop_versioning): Likewise.
        * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
        versioning_threshold.
        (vect_analyze_loop_2): Compute the loop versioning threshold
        whenever loop versioning is needed, and store it in the new
        field rather than combining it with the cost model threshold.
        (vect_transform_loop): Update call to vect_loop_versioning.
        Try to combine the loop versioning and cost thresholds here.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-ssa-loop-ivopts.h (strip_offset): Return the offset as
        poly_uint64_pod rather than an unsigned HOST_WIDE_INT.
        * tree-loop-distribution.c (classify_builtin_st): Update accordingly.
        * tree-ssa-loop-ivopts.c (iv_use::addr_offset): Change from
        an unsigned HOST_WIDE_INT to a poly_uint64_pod.
        (group_compare_offset): Update accordingly.
        (split_small_address_groups_p): Likewise.
        (record_use): Take addr_offset as a poly_uint64 rather than
        an unsigned HOST_WIDE_INT.
        (strip_offset): Return the offset as a poly_uint64 rather than
        an unsigned HOST_WIDE_INT.
        (record_group_use, split_address_groups): Track polynomial offsets.
        (add_iv_candidate_for_use): Likewise.
        (addr_offset_valid_p): Take the offset as a poly_int64 rather
        than a HOST_WIDE_INT.
        (strip_offset_1): Return the offset as a poly_int64 rather than
        a HOST_WIDE_INT.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree.h (get_binfo_at_offset): Take the offset as a poly_int64
        rather than a HOST_WIDE_INT.
        * tree.c (get_binfo_at_offset): Likewise.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * ipa-prop.h (build_ref_for_offset): Take the offset as a poly_int64
        rather than a HOST_WIDE_INT.
        * tree-sra.c (build_ref_for_offset): Likewise.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * fold-const.h (mem_ref_offset): Return a poly_offset_int rather
        than an offset_int.
        * tree.c (mem_ref_offset): Likewise.
        (build_simple_mem_ref_loc): Treat MEM_REF offsets as poly_ints.
        * builtins.c (get_object_alignment_2): Likewise.
        * expr.c (get_inner_reference, expand_expr_real_1): Likewise.
        * gimple-fold.c (get_base_constructor): Likewise.
        * gimple-ssa-strength-reduction.c (restructure_reference): Likewise.
        * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref):
        Likewise.
        * ipa-polymorphic-call.c
        (ipa_polymorphic_call_context::ipa_polymorphic_call_context): Likewise.
        * ipa-prop.c (compute_complex_assign_jump_func): Likewise.
        (get_ancestor_addr_info): Likewise.
        * ipa-param-manipulation.c (ipa_get_adjustment_candidate): Likewise.
        * match.pd: Likewise.
        * tree-data-ref.c (dr_analyze_innermost): Likewise.
        * tree-dfa.c (get_addr_base_and_unit_offset_1): Likewise.
        * tree-eh.c (tree_could_trap_p): Likewise.
        * tree-object-size.c (addr_object_size): Likewise.
        * tree-ssa-address.c (copy_ref_info): Likewise.
        * tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Likewise.
        (indirect_refs_may_alias_p): Likewise.
        * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Likewise.
        * tree-ssa.c (maybe_rewrite_mem_ref_base): Likewise.
        (non_rewritable_mem_ref_base): Likewise.
        * tree-vect-data-refs.c (vect_check_gather_scatter): Likewise.
        * tree-vrp.c (vrp_prop::check_array_ref): Likewise.
        * varasm.c (decode_addr_const): Likewise.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * gimple-ssa-stor-merging.c (find_bswap_or_nop_load): Track polynomial
        offsets for MEM_REFs.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-ssanames.h (adjust_ptr_info_misalignment): Take the increment
        as a poly_uint64 rather than an unsigned int.
        * tree-ssanames.c (adjust_ptr_info_misalignment): Likewise.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * varasm.c (addr_const::offset): Change from HOST_WIDE_INT
        to poly_int64.
        (decode_addr_const): Update accordingly.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree.h (bit_field_size, bit_field_offset): New functions.
        * hsa-gen.c (gen_hsa_addr): Use them.
        * tree-ssa-forwprop.c (simplify_bitfield_ref): Likewise.
        (simplify_vector_constructor): Likewise.
        * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Likewise.
        * tree-cfg.c (verify_expr): Require the sizes and offsets of a
        BIT_FIELD_REF to be poly_uint64s rather than uhwis.
        * fold-const.c (fold_ternary_loc): Protect tree_to_uhwi with
        tree_fits_uhwi_p.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expr.h (emit_group_load, emit_group_load_into_temps)
        (emit_group_store): Take the size as a poly_int64 rather than an int.
        * expr.c (emit_group_load_1, emit_group_load): Likewise.
        (emit_group_load_into_temp, emit_group_store): Likewise.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * ira-int.h (ira_spilled_reg_stack_slot::width): Change from
        an unsigned int to a poly_uint64.
        * ira.h (ira_reuse_stack_slot, ira_mark_new_stack_slot): Take the
        sizes as poly_uint64s rather than unsigned ints.
        * ira-color.c (ira_reuse_stack_slot, ira_mark_new_stack_slot):
        Likewise.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * lra-constraints.c (emit_inc): Change inc_amount from an int
        to a poly_int64.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * cfgexpand.c (stack_var::size): Change from a HOST_WIDE_INT
        to a poly_uint64.
        (add_stack_var, stack_var_cmp, partition_stack_vars)
        (dump_stack_var_partition): Update accordingly.
        (alloc_stack_frame_space): Take the size as a poly_int64 rather
        than a HOST_WIDE_INT.
        (expand_stack_vars, expand_one_stack_var_1): Handle polynomial sizes.
        (defer_stack_allocation, estimated_stack_frame_size): Likewise.
        (account_stack_vars, expand_one_var): Likewise.  Return a poly_uint64
        rather than a HOST_WIDE_INT.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (return_pops_args): Treat both the input and output
        sizes as poly_int64s rather than HOST_WIDE_INTS.
        * targhooks.h (default_return_pops_args): Update accordingly.
        * targhooks.c (default_return_pops_args): Likewise.
        * doc/tm.texi: Regenerate.
        * emit-rtl.h (incoming_args): Change pops_args, size and
        outgoing_args_size from int to poly_int64_pod.
        * function.h (expr_status): Change x_pending_stack_adjust and
        x_stack_pointer_delta from int to poly_int64.
        (args_size::constant): Change from HOST_WIDE_INT to poly_int64.
        (ARGS_SIZE_RTX): Update accordingly.
        * calls.c (highest_outgoing_arg_in_use): Change from int to
        unsigned int.
        (stack_usage_watermark, stored_args_watermark): New variables.
        (stack_region_maybe_used_p, mark_stack_region_used): New functions.
        (emit_call_1): Change the stack_size and rounded_stack_size
        parameters from HOST_WIDE_INT to poly_int64.  Track n_popped
        as a poly_int64.
        (save_fixed_argument_area): Check stack_usage_watermark.
        (initialize_argument_information): Change old_pending_adj from
        a HOST_WIDE_INT * to a poly_int64_pod *.
        (compute_argument_block_size): Return the size as a poly_int64
        rather than an int.
        (finalize_must_preallocate): Track polynomial argument sizes.
        (compute_argument_addresses): Likewise.
        (internal_arg_pointer_based_exp): Track polynomial offsets.
        (mem_overlaps_already_clobbered_arg_p): Rename to...
        (mem_might_overlap_already_clobbered_arg_p): ...this and take the
        size as a poly_uint64 rather than an unsigned HOST_WIDE_INT.
        Check stored_args_used_watermark.
        (load_register_parameters): Update accordingly.
        (check_sibcall_argument_overlap_1): Likewise.
        (combine_pending_stack_adjustment_and_call): Take the unadjusted
        args size as a poly_int64 rather than an int.  Return a bool
        indicating whether the optimization was possible and return
        the new adjustment by reference.
        (check_sibcall_argument_overlap): Track polynomail argument sizes.
        Update stored_args_watermark.
        (can_implement_as_sibling_call_p): Handle polynomial argument sizes.
        (expand_call): Likewise.  Maintain stack_usage_watermark and
        stored_args_watermark.  Update calls to
        combine_pending_stack_adjustment_and_call.
        (emit_library_call_value_1): Handle polynomial argument sizes.
        Call stack_region_maybe_used_p and mark_stack_region_used.
        Maintain stack_usage_watermark.
        (store_one_arg): Likewise.  Update call to
        mem_overlaps_already_clobbered_arg_p.
        * config/arm/arm.c (arm_output_function_prologue): Add a cast to
        HOST_WIDE_INT.
        * config/avr/avr.c (avr_outgoing_args_size): Likewise.
        * config/microblaze/microblaze.c (microblaze_function_prologue):
        Likewise.
        * config/cr16/cr16.c (cr16_return_pops_args): Update for new
        TARGET_RETURN_POPS_ARGS interface.
        (cr16_compute_frame, cr16_initial_elimination_offset): Add casts
        to HOST_WIDE_INT.
        * config/ft32/ft32.c (ft32_compute_frame): Likewise.
        * config/i386/i386.c (ix86_return_pops_args): Update for new
        TARGET_RETURN_POPS_ARGS interface.
        (ix86_expand_split_stack_prologue): Add a cast to HOST_WIDE_INT.
        * config/moxie/moxie.c (moxie_compute_frame): Likewise.
        * config/m68k/m68k.c (m68k_return_pops_args): Update for new
        TARGET_RETURN_POPS_ARGS interface.
        * config/vax/vax.c (vax_return_pops_args): Likewise.
        * config/pa/pa.h (STACK_POINTER_OFFSET): Add a cast to poly_int64.
        (EXIT_IGNORE_STACK): Update reference to crtl->outgoing_args_size.
        * config/arm/arm.h (CALLER_INTERWORKING_SLOT_SIZE): Likewise.
        * config/powerpcspe/aix.h (STACK_DYNAMIC_OFFSET): Likewise.
        * config/powerpcspe/darwin.h (STACK_DYNAMIC_OFFSET): Likewise.
        * config/powerpcspe/powerpcspe.h (STACK_DYNAMIC_OFFSET): Likewise.
        * config/rs6000/aix.h (STACK_DYNAMIC_OFFSET): Likewise.
        * config/rs6000/darwin.h (STACK_DYNAMIC_OFFSET): Likewise.
        * config/rs6000/rs6000.h (STACK_DYNAMIC_OFFSET): Likewise.
        * dojump.h (saved_pending_stack_adjust): Change x_pending_stack_adjust
        and x_stack_pointer_delta from int to poly_int64.
        * dojump.c (do_pending_stack_adjust): Update accordingly.
        * explow.c (allocate_dynamic_stack_space): Handle polynomial
        stack_pointer_deltas.
        * function.c (STACK_DYNAMIC_OFFSET): Add a cast to poly_int64.
        (pad_to_arg_alignment): Track polynomial offsets.
        (assign_parm_find_stack_rtl): Likewise.
        (assign_parms, locate_and_pad_parm): Handle polynomial argument sizes.
        * toplev.c (output_stack_usage): Update reference to
        current_function_pushed_stack_size.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * function.c (in_arg_offset, var_offset, dynamic_offset)
        (out_arg_offset, cfa_offset): Change from int to poly_int64.
        (instantiate_new_reg): Return the new offset as a poly_int64_pod
        rather than a HOST_WIDE_INT.
        (instantiate_virtual_regs_in_rtx): Track polynomial offsets.
        (instantiate_virtual_regs_in_insn): Likewise.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtl.h (get_args_size, add_args_size_note): New functions.
        (find_args_size_adjust): Return a poly_int64 rather than a
        HOST_WIDE_INT.
        (fixup_args_size_notes): Likewise.  Make the same change to the
        end_args_size parameter.
        * rtlanal.c (get_args_size, add_args_size_note): New functions.
        * builtins.c (expand_builtin_trap): Use add_args_size_note.
        * calls.c (emit_call_1): Likewise.
        * explow.c (adjust_stack_1): Likewise.
        * cfgcleanup.c (old_insns_match_p): Update use of
        find_args_size_adjust.
        * combine.c (distribute_notes): Track polynomial arg sizes.
        * dwarf2cfi.c (dw_trace_info): Change beg_true_args_size,
        end_true_args_size, beg_delay_args_size and end_delay_args_size
        from HOST_WIDE_INT to poly_int64.
        (add_cfi_args_size): Take the args_size as a poly_int64 rather
        than a HOST_WIDE_INT.
        (notice_args_size, notice_eh_throw, maybe_record_trace_start)
        (maybe_record_trace_start_abnormal, scan_trace, connect_traces): Track
        polynomial arg sizes.
        * emit-rtl.c (try_split): Use get_args_size.
        * recog.c (peep2_attempt): Likewise.
        * reload1.c (reload_as_needed): Likewise.
        * expr.c (find_args_size_adjust): Return the adjustment as a
        poly_int64 rather than a HOST_WIDE_INT.
        (fixup_args_size_notes): Change end_args_size from a HOST_WIDE_INT
        to a poly_int64 and change the return type in the same way.
        (emit_single_push_insn): Track polynomial arg sizes.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expr.h (push_block, emit_push_insn): Change the "extra" parameter
        from HOST_WIDE_INT to poly_int64.
        * expr.c (push_block, emit_push_insn): Likewise.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * function.h (frame_space): Change start and length from HOST_WIDE_INT
        to poly_int64.
        (get_frame_size): Return the size as a poly_int64 rather than a
        HOST_WIDE_INT.
        (frame_offset_overflow): Take the offset as a poly_int64 rather
        than a HOST_WIDE_INT.
        (assign_stack_local_1, assign_stack_local, assign_stack_temp_for_type)
        (assign_stack_temp): Likewise for the size.
        * function.c (get_frame_size): Return a poly_int64 rather than
        a HOST_WIDE_INT.
        (frame_offset_overflow): Take the offset as a poly_int64 rather
        than a HOST_WIDE_INT.
        (try_fit_stack_local): Take the start, length and size as poly_int64s
        rather than HOST_WIDE_INTs.  Return the offset as a poly_int64_pod
        rather than a HOST_WIDE_INT.
        (add_frame_space): Take the start and end as poly_int64s rather than
        HOST_WIDE_INTs.
        (assign_stack_local_1, assign_stack_local, assign_stack_temp_for_type)
        (assign_stack_temp): Likewise for the size.
        (temp_slot): Change size, base_offset and full_size from HOST_WIDE_INT
        to poly_int64.
        (find_temp_slot_from_address): Handle polynomial offsets.
        (combine_temp_slots): Likewise.
        * emit-rtl.h (rtl_data::x_frame_offset): Change from HOST_WIDE_INT
        to poly_int64.
        * cfgexpand.c (alloc_stack_frame_space): Return the offset as a
        poly_int64 rather than a HOST_WIDE_INT.
        (expand_one_stack_var_at): Take the offset as a poly_int64 rather
        than a HOST_WIDE_INT.
        (expand_stack_vars, expand_one_stack_var_1, expand_used_vars): Handle
        polynomial frame offsets.
        * config/m32r/m32r-protos.h (m32r_compute_frame_size): Take the size
        as a poly_int64 rather than an int.
        * config/m32r/m32r.c (m32r_compute_frame_size): Likewise.
        * config/v850/v850-protos.h (compute_frame_size): Likewise.
        * config/v850/v850.c (compute_frame_size): Likewise.
        * config/xtensa/xtensa-protos.h (compute_frame_size): Likewise.
        * config/xtensa/xtensa.c (compute_frame_size): Likewise.
        * config/pa/pa-protos.h (pa_compute_frame_size): Likewise.
        * config/pa/pa.c (pa_compute_frame_size): Likewise.
        * explow.h (get_dynamic_stack_base): Take the offset as a poly_int64
        rather than a HOST_WIDE_INT.
        * explow.c (get_dynamic_stack_base): Likewise.
        * final.c (final_start_function): Use the constant lower bound
        of the frame size for -Wframe-larger-than.
        * ira.c (do_reload): Adjust for new get_frame_size return type.
        * lra.c (lra): Likewise.
        * reload1.c (reload): Likewise.
        * config/avr/avr.c (avr_asm_function_end_prologue): Likewise.
        * config/pa/pa.h (EXIT_IGNORE_STACK): Likewise.
        * rtlanal.c (get_initial_register_offset): Return the offset as
        a poly_int64 rather than a HOST_WIDE_INT.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * reload1.c (elim_table): Change initial_offset, offset and
        previous_offset from HOST_WIDE_INT to poly_int64_pod.
        (offsets_at): Change the target array's element type from
        HOST_WIDE_INT to poly_int64_pod.
        (set_label_offsets, eliminate_regs_1, eliminate_regs_in_insn)
        (elimination_costs_in_insn, update_eliminable_offsets)
        (verify_initial_elim_offsets, set_offsets_for_label)
        (init_eliminable_invariants): Update after above changes.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * reload.h (reload::inc): Change from an int to a poly_int64_pod.
        * reload.c (combine_reloads, debug_reload_to_stream): Likewise.
        (decomposition): Change start and end from HOST_WIDE_INT
        to poly_int64_pod.
        (decompose, immune_p): Update accordingly.
        (find_inc_amount): Return a poly_int64 rather than an int.
        * reload1.c (inc_for_reload): Take the inc_amount as a poly_int64
        rather than an int.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree.h (get_inner_reference): Return the bitsize and bitpos
        as poly_int64_pods rather than HOST_WIDE_INT.
        * fold-const.h (ptr_difference_const): Return the pointer difference
        as a poly_int64_pod rather than a HOST_WIDE_INT.
        * expr.c (get_inner_reference): Return the bitsize and bitpos
        as poly_int64_pods rather than HOST_WIDE_INT.
        (expand_expr_addr_expr_1, expand_expr_real_1): Track polynomial
        offsets and sizes.
        * fold-const.c (make_bit_field_ref): Take the bitpos as a poly_int64
        rather than a HOST_WIDE_INT.  Update call to get_inner_reference.
        (optimize_bit_field_compare): Update call to get_inner_reference.
        (decode_field_reference): Likewise.
        (fold_unary_loc): Track polynomial offsets and sizes.
        (split_address_to_core_and_offset): Return the bitpos as a
        poly_int64_pod rather than a HOST_WIDE_INT.
        (ptr_difference_const): Likewise for the pointer difference.
        * asan.c (instrument_derefs): Track polynomial offsets and sizes.
        * config/mips/mips.c (r10k_safe_mem_expr_p): Likewise.
        * dbxout.c (dbxout_expand_expr): Likewise.
        * dwarf2out.c (loc_list_for_address_of_addr_expr_of_indirect_ref)
        (loc_list_from_tree_1, fortran_common): Likewise.
        * gimple-laddress.c (pass_laddress::execute): Likewise.
        * gimple-ssa-store-merging.c (find_bswap_or_nop_load): Likewise.
        * gimplify.c (gimplify_scan_omp_clauses): Likewise.
        * simplify-rtx.c (delegitimize_mem_from_attrs): Likewise.
        * tree-affine.c (tree_to_aff_combination): Likewise.
        (get_inner_reference_aff): Likewise.
        * tree-data-ref.c (split_constant_offset_1): Likewise.
        (dr_analyze_innermost): Likewise.
        * tree-scalar-evolution.c (interpret_rhs_expr): Likewise.
        * tree-sra.c (ipa_sra_check_caller): Likewise.
        * tree-vect-data-refs.c (vect_check_gather_scatter): Likewise.
        * ubsan.c (maybe_instrument_pointer_overflow): Likewise.
        (instrument_bool_enum_load, instrument_object_size): Likewise.
        * gimple-ssa-strength-reduction.c (slsr_process_ref): Update call
        to get_inner_reference.
        * hsa-gen.c (gen_hsa_addr): Likewise.
        * sanopt.c (maybe_optimize_ubsan_ptr_ifn): Likewise.
        * tsan.c (instrument_expr): Likewise.
        * match.pd: Update call to ptr_difference_const.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * fold-const.c (fold_comparison): Track sizes and offsets as
        poly_int64s rather than HOST_WIDE_INTs when folding address
        comparisons.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expr.h (get_bit_range): Return the bitstart and bitend as
        poly_uint64s rather than unsigned HOST_WIDE_INTs.  Return the bitpos
        as a poly_int64 rather than a HOST_WIDE_INT.
        * expr.c (get_bit_range): Likewise.
        (expand_assignment): Update call accordingly.
        * fold-const.c (optimize_bit_field_compare): Likewise.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_addr_query_type): New enum.
        (aarch64_legitimate_address_p): Use it instead of an rtx code,
        as an optional final parameter.
        * config/aarch64/aarch64.c (aarch64_classify_address): Likewise.
        (aarch64_legitimate_address_p): Likewise.
        (aarch64_print_address_internal): Take an aarch64_addr_query_type
        instead of an rtx code.
        (aarch64_address_valid_for_prefetch_p): Update calls accordingly.
        (aarch64_legitimate_address_hook_p): Likewise.
        (aarch64_print_ldpstp_address): Likewise.
        (aarch64_print_operand_address): Likewise.
        (aarch64_address_cost): Likewise.
        * config/aarch64/constraints.md (Uml, Umq, Ump, Utq): Likewise.
        * config/aarch64/predicates.md (aarch64_mem_pair_operand): Likewise.
        (aarch64_mem_pair_lanes_operand): Likewise.

2017-12-20  Richard Biener  <rguenther@suse.de>

        * tree-ssa-dom.c (dom_opt_dom_walker::optimize_stmt): Call
        update_stmt_if_modified.

2017-12-20  Wilco Dijkstra  <wdijkstr@arm.com>

        PR tree-optimization/83491
        * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Check for SSA_NAME
        before walking uses.  Improve coding style and comments.

2017-12-20  Tom de Vries  <tom@codesourcery.com>

        * gimple-fold.c (fold_internal_goacc_dim): Simplify.

2017-12-20  Jakub Jelinek  <jakub@redhat.com>

        PR ipa/83506
        * ipa-fnsummary.c (pass_data_ipa_free_fn_summary): Use 0 for
        todo_flags_finish.
        (pass_ipa_free_fn_summary): Add small_p private data member,
        initialize to false in the ctor.
        (pass_ipa_free_fn_summary::clone,
        pass_ipa_free_fn_summary::set_pass_param,
        pass_ipa_free_fn_summary::gate): New methods.
        (pass_ipa_free_fn_summary::execute): Return TODO_remove_functions
        | TODO_dump_symtab if small_p.
        * passes.def: Add true parm for the existing pass_ipa_free_fn_summary
        entry and add another instance of the pass with false parm after
        ipa-pure-const.
        * ipa-pure-const.c (pass_ipa_pure_const): Don't call
        ipa_free_fn_summary here.

2017-12-20  Paolo Carlini  <paolo.carlini@oracle.com>

        * gimplify.c (gimplify_return_expr): Remove dead error_mark_node check.

2017-12-20  Martin Sebor  <msebor@redhat.com>

        PR testsuite/83131
        * builtins.c (expand_builtin_strlen): Use get_callee_fndecl.
        (expand_builtin_strcmp): Call maybe_warn_nonstring_arg.
        (expand_builtin_strncmp): Same.

2017-12-20  Alexandre Oliva  <aoliva@redhat.com>

        PR bootstrap/83396
        * cfgexpand.c (label_rtx_for_bb): Revert SFN changes that
        allowed debug stmts before labels.
        (expand_gimple_basic_block): Likewise.
        * gimple-iterator.c (gimple_find_edge_insert_loc): Likewise.
        * gimple-iterator.h (gsi_after_labels): Likewise.
        * tree-cfgcleanup (remove_forwarder_block): Likewise, but
        rename reused variable, and simplify using gsi_move_before.
        * tree-ssa-tail-merge.c (find_duplicate): Likewise.
        * tree-cfg.c (make_edges, cleanup_dead_labels): Likewise.
        (gimple_can_merge_blocks_p, verify_gimple_in_cfg): Likewise.
        (gimple_verify_flow_info, gimple_block_label): Likewise.
        (make_blocks): Move debug markers after adjacent labels.
        * cfgrtl.c (skip_insns_after_block): Revert SFN changes that
        allowed debug insns outside blocks.
        * df-scan.c (df_insn_delete): Likewise.
        * lra-constraints.c (update_ebb_live_info): Likewise.
        * var-tracking.c (get_first_insn, vt_emit_notes): Likewise.
        (vt_initialize, delete_vta_debug_insns): Likewise.
        (reemit_marker_as_note): Drop BB parm.  Adjust callers.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * poly-int-types.h (round_down_to_byte_boundary): New macro.
        (round_up_to_byte_boundary): Likewise.
        * expr.h (get_bit_range): Add temporary shim.
        * gimple-ssa-store-merging.c (store_operand_info): Change the
        bitsize, bitpos, bitregion_start and bitregion_end fields from
        unsigned HOST_WIDE_INT to poly_uint64.
        (merged_store_group): Likewise load_align_base.
        (compatible_load_p, compatible_load_p): Update accordingly.
        (imm_store_chain_info::coalesce_immediate_stores): Likewise.
        (split_group, imm_store_chain_info::output_merged_store): Likewise.
        (mem_valid_for_store_merging): Return the bitsize, bitpos,
        bitregion_start and bitregion_end as poly_uint64s rather than
        unsigned HOST_WIDE_INTs.  Track polynomial offsets internally.
        (handled_load): Take the bitsize, bitpos,
        bitregion_start and bitregion_end as poly_uint64s rather than
        unsigned HOST_WIDE_INTs.
        (pass_store_merging::process_store): Update call to
        mem_valid_for_store_merging.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * builtins.c (get_object_alignment_2): Track polynomial offsets
        and sizes.  Update the alignment handling.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree.h (get_inner_reference): Add a version that returns the
        offset and size as poly_int64_pods rather than HOST_WIDE_INTs.
        * cfgexpand.c (expand_debug_expr): Track polynomial offsets.  Simply
        the case in which bitpos is not associated with the first byte.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-affine.h (get_inner_reference_aff): Return the size as a
        poly_widest_int.
        * tree-affine.c (get_inner_reference_aff): Likewise.
        * tree-data-ref.c (dr_may_alias_p): Update accordingly.
        * tree-ssa-loop-im.c (mem_refs_may_alias_p): Likewise.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * fold-const.c (pointer_may_wrap_p): Take the offset as a
        HOST_WIDE_INT rather than a poly_int64.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * gimple-ssa-store-merging.c (symbolic_number::bytepos): Change from
        HOST_WIDE_INT to poly_int64_pod.
        (perform_symbolic_merge): Update accordingly.
        (bswap_replace): Likewise.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-affine.h (aff_tree::offset): Change from widest_int
        to poly_widest_int.
        (wide_int_ext_for_comb): Delete.
        (aff_combination_const, aff_comb_cannot_overlap_p): Take the
        constants as poly_widest_int rather than widest_int.
        (aff_combination_constant_multiple_p): Return the multiplier
        as a poly_widest_int.
        (aff_combination_zero_p, aff_combination_singleton_var_p): Handle
        polynomial offsets.
        * tree-affine.c (wide_int_ext_for_comb): Make original widest_int
        version static and add an overload for poly_widest_int.
        (aff_combination_const, aff_combination_add_cst)
        (wide_int_constant_multiple_p, aff_comb_cannot_overlap_p): Take
        the constants as poly_widest_int rather than widest_int.
        (tree_to_aff_combination): Generalize INTEGER_CST case to
        poly_int_tree_p.
        (aff_combination_to_tree): Track offsets as poly_widest_ints.
        (aff_combination_add_product, aff_combination_mult): Handle
        polynomial offsets.
        (aff_combination_constant_multiple_p): Return the multiplier
        as a poly_widest_int.
        * tree-predcom.c (determine_offset): Return the offset as a
        poly_widest_int.
        (split_data_refs_to_components, suitable_component_p): Update
        accordingly.
        (valid_initializer_p): Update call to
        aff_combination_constant_multiple_p.
        * tree-ssa-address.c (addr_to_parts): Handle polynomial offsets.
        * tree-ssa-loop-ivopts.c (get_address_cost_ainc): Take the step
        as a poly_int64 rather than a HOST_WIDE_INT.
        (get_address_cost): Handle polynomial offsets.
        (iv_elimination_compare_lt): Likewise.
        (rewrite_use_nonlinear_expr): Likewise.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-dfa.h (get_addr_base_and_unit_offset_1): Return the offset
        as a poly_int64_pod rather than a HOST_WIDE_INT.
        (get_addr_base_and_unit_offset): Likewise.
        * tree-dfa.c (get_addr_base_and_unit_offset_1): Likewise.
        (get_addr_base_and_unit_offset): Likewise.
        * doc/match-and-simplify.texi: Change off from HOST_WIDE_INT
        to poly_int64 in example.
        * fold-const.c (fold_binary_loc): Update call to
        get_addr_base_and_unit_offset.
        * gimple-fold.c (gimple_fold_builtin_memory_op): Likewise.
        (maybe_canonicalize_mem_ref_addr): Likewise.
        (gimple_fold_stmt_to_constant_1): Likewise.
        * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref):
        Likewise.
        * ipa-param-manipulation.c (ipa_modify_call_arguments): Likewise.
        * match.pd: Likewise.
        * omp-low.c (lower_omp_target): Likewise.
        * tree-sra.c (build_ref_for_offset): Likewise.
        (build_debug_ref_for_model): Likewise.
        * tree-ssa-address.c (maybe_fold_tmr): Likewise.
        * tree-ssa-alias.c (ao_ref_init_from_ptr_and_size): Likewise.
        * tree-ssa-ccp.c (optimize_memcpy): Likewise.
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Likewise.
        (constant_pointer_difference): Likewise.
        * tree-ssa-loop-niter.c (expand_simple_operations): Likewise.
        * tree-ssa-phiopt.c (jump_function_from_stmt): Likewise.
        * tree-ssa-pre.c (create_component_ref_by_pieces_1): Likewise.
        * tree-ssa-sccvn.c (vn_reference_fold_indirect): Likewise.
        (vn_reference_maybe_forwprop_address, vn_reference_lookup_3): Likewise.
        (set_ssa_val_to): Likewise.
        * tree-ssa-strlen.c (get_addr_stridx, addr_stridxptr)
        (maybe_diag_stxncpy_trunc): Likewise.
        * tree-vrp.c (vrp_prop::check_array_ref): Likewise.
        * tree.c (build_simple_mem_ref_loc): Likewise.
        (array_at_struct_end_p): Likewise.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-dfa.h (get_ref_base_and_extent): Return the base, size and
        max_size as poly_int64_pods rather than HOST_WIDE_INTs.
        (get_ref_base_and_extent_hwi): Declare.
        * tree-dfa.c (get_ref_base_and_extent): Return the base, size and
        max_size as poly_int64_pods rather than HOST_WIDE_INTs.
        (get_ref_base_and_extent_hwi): New function.
        * cfgexpand.c (expand_debug_expr): Update call to
        get_ref_base_and_extent.
        * dwarf2out.c (add_var_loc_to_decl): Likewise.
        * gimple-fold.c (get_base_constructor): Return the offset as a
        poly_int64_pod rather than a HOST_WIDE_INT.
        (fold_const_aggregate_ref_1): Track polynomial sizes and offsets.
        * ipa-polymorphic-call.c
        (ipa_polymorphic_call_context::set_by_invariant)
        (extr_type_from_vtbl_ptr_store): Track polynomial offsets.
        (ipa_polymorphic_call_context::ipa_polymorphic_call_context)
        (check_stmt_for_type_change): Use get_ref_base_and_extent_hwi
        rather than get_ref_base_and_extent.
        (ipa_polymorphic_call_context::get_dynamic_type): Likewise.
        * ipa-prop.c (ipa_load_from_parm_agg, compute_complex_assign_jump_func)
        (get_ancestor_addr_info, determine_locally_known_aggregate_parts):
        Likewise.
        * ipa-param-manipulation.c (ipa_get_adjustment_candidate): Update
        call to get_ref_base_and_extent.
        * tree-sra.c (create_access, get_access_for_expr): Likewise.
        * tree-ssa-alias.c (ao_ref_base, aliasing_component_refs_p)
        (stmt_kills_ref_p): Likewise.
        * tree-ssa-dce.c (mark_aliased_reaching_defs_necessary_1): Likewise.
        * tree-ssa-scopedtables.c (avail_expr_hash, equal_mem_array_ref_p):
        Likewise.
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Likewise.
        Use get_ref_base_and_extent_hwi rather than get_ref_base_and_extent
        when calling native_encode_expr.
        * tree-ssa-structalias.c (get_constraint_for_component_ref): Update
        call to get_ref_base_and_extent.
        (do_structure_copy): Use get_ref_base_and_extent_hwi rather than
        get_ref_base_and_extent.
        * var-tracking.c (track_expr_p): Likewise.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * ipa-param-manipulation.h (ipa_parm_adjustment::offset): Change from
        HOST_WIDE_INT to poly_int64_pod.
        * ipa-param-manipulation.c (ipa_modify_call_arguments): Track
        polynomail parameter offsets.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * gengtype.c (main): Handle poly_int64_pod.
        * dwarf2out.h (dw_cfi_oprnd_cfa_loc): New dw_cfi_oprnd_type.
        (dw_cfi_oprnd::dw_cfi_cfa_loc): New field.
        (dw_cfa_location::offset, dw_cfa_location::base_offset): Change
        from HOST_WIDE_INT to poly_int64_pod.
        * dwarf2cfi.c (queued_reg_save::cfa_offset): Likewise.
        (copy_cfa): New function.
        (lookup_cfa_1): Use the cached dw_cfi_cfa_loc, if it exists.
        (cfi_oprnd_equal_p): Handle dw_cfi_oprnd_cfa_loc.
        (cfa_equal_p, dwarf2out_frame_debug_adjust_cfa)
        (dwarf2out_frame_debug_cfa_offset, dwarf2out_frame_debug_expr)
        (initial_return_save): Treat offsets as poly_ints.
        (def_cfa_0): Likewise.  Cache the CFA in dw_cfi_cfa_loc if either
        offset is nonconstant.
        (reg_save): Take the offset as a poly_int64.  Fall back to
        DW_CFA_expression for nonconstant offsets.
        (queue_reg_save): Take the offset as a poly_int64.
        * dwarf2out.c (dw_cfi_oprnd2_desc): Handle DW_CFA_def_cfa_expression.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtl.h (operand_subword, operand_subword_force): Take the offset
        as a poly_uint64 an unsigned int.
        * emit-rtl.c (operand_subword, operand_subword_force): Likewise.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/rtl.texi: Update documentation of SUBREG_BYTE.  Document the
        'p' format code.  Use INT_LIST rather than SUBREG as the example of
        a code with an XINT and an XEXP.  Remove the implication that
        accessing an rtx field using XINT is expected to work.
        * rtl.def (SUBREG): Change format from "ei" to "ep".
        * rtl.h (rtunion::rt_subreg): New field.
        (XCSUBREG): New macro.
        (SUBREG_BYTE): Use it.
        (subreg_shape): Change offset from an unsigned int to a poly_uint16.
        Update constructor accordingly.
        (subreg_shape::operator ==): Update accordingly.
        (subreg_shape::unique_id): Return an unsigned HOST_WIDE_INT rather
        than an unsigned int.
        (subreg_lsb, subreg_lowpart_offset, subreg_highpart_offset): Return
        a poly_uint64 rather than an unsigned int.
        (subreg_lsb_1): Likewise.  Take the offset as a poly_uint64 rather
        than an unsigned int.
        (subreg_size_offset_from_lsb, subreg_size_lowpart_offset)
        (subreg_size_highpart_offset): Return a poly_uint64 rather than
        an unsigned int.  Take the sizes as poly_uint64s.
        (subreg_offset_from_lsb): Return a poly_uint64 rather than
        an unsigned int.  Take the shift as a poly_uint64 rather than
        an unsigned int.
        (subreg_regno_offset, subreg_offset_representable_p): Take the offset
        as a poly_uint64 rather than an unsigned int.
        (simplify_subreg_regno): Likewise.
        (byte_lowpart_offset): Return the memory offset as a poly_int64
        rather than an int.
        (subreg_memory_offset): Likewise.  Take the subreg offset as a
        poly_uint64 rather than an unsigned int.
        (simplify_subreg, simplify_gen_subreg, subreg_get_info)
        (gen_rtx_SUBREG, validate_subreg): Take the subreg offset as a
        poly_uint64 rather than an unsigned int.
        * rtl.c (rtx_format): Describe 'p' in comment.
        (copy_rtx, rtx_equal_p_cb, rtx_equal_p): Handle 'p'.
        * emit-rtl.c (validate_subreg, gen_rtx_SUBREG): Take the subreg
        offset as a poly_uint64 rather than an unsigned int.
        (byte_lowpart_offset): Return the memory offset as a poly_int64
        rather than an int.
        (subreg_memory_offset): Likewise.  Take the subreg offset as a
        poly_uint64 rather than an unsigned int.
        (subreg_size_lowpart_offset, subreg_size_highpart_offset): Take the
        mode sizes as poly_uint64s rather than unsigned ints.  Return a
        poly_uint64 rather than an unsigned int.
        (subreg_lowpart_p): Treat subreg offsets as poly_ints.
        (copy_insn_1): Handle 'p'.
        * rtlanal.c (set_noop_p): Treat subregs offsets as poly_uint64s.
        (subreg_lsb_1): Take the subreg offset as a poly_uint64 rather than
        an unsigned int.  Return the shift in the same way.
        (subreg_lsb): Return the shift as a poly_uint64 rather than an
        unsigned int.
        (subreg_size_offset_from_lsb): Take the sizes and shift as
        poly_uint64s rather than unsigned ints.  Return the offset as
        a poly_uint64.
        (subreg_get_info, subreg_regno_offset, subreg_offset_representable_p)
        (simplify_subreg_regno): Take the offset as a poly_uint64 rather than
        an unsigned int.
        * rtlhash.c (add_rtx): Handle 'p'.
        * genemit.c (gen_exp): Likewise.
        * gengenrtl.c (type_from_format, gendef): Likewise.
        * gensupport.c (subst_pattern_match, get_alternatives_number)
        (collect_insn_data, alter_predicate_for_insn, alter_constraints)
        (subst_dup): Likewise.
        * gengtype.c (adjust_field_rtx_def): Likewise.
        * genrecog.c (find_operand, find_matching_operand, validate_pattern)
        (match_pattern_2): Likewise.
        (rtx_test::SUBREG_FIELD): New rtx_test::kind_enum.
        (rtx_test::subreg_field): New function.
        (operator ==, safe_to_hoist_p, transition_parameter_type)
        (print_nonbool_test, print_test): Handle SUBREG_FIELD.
        * genattrtab.c (attr_rtx_1): Say that 'p' is deliberately not handled.
        * genpeep.c (match_rtx): Likewise.
        * print-rtl.c (print_poly_int): Include if GENERATOR_FILE too.
        (rtx_writer::print_rtx_operand): Handle 'p'.
        (print_value): Handle SUBREG.
        * read-rtl.c (apply_int_iterator): Likewise.
        (rtx_reader::read_rtx_operand): Handle 'p'.
        * alias.c (rtx_equal_for_memref_p): Likewise.
        * cselib.c (rtx_equal_for_cselib_1, cselib_hash_rtx): Likewise.
        * caller-save.c (replace_reg_with_saved_mem): Treat subreg offsets
        as poly_ints.
        * calls.c (expand_call): Likewise.
        * combine.c (combine_simplify_rtx, expand_field_assignment): Likewise.
        (make_extraction, gen_lowpart_for_combine): Likewise.
        * loop-invariant.c (hash_invariant_expr_1, invariant_expr_equal_p):
        Likewise.
        * cse.c (remove_invalid_subreg_refs): Take the offset as a poly_uint64
        rather than an unsigned int.  Treat subreg offsets as poly_ints.
        (exp_equiv_p): Handle 'p'.
        (hash_rtx_cb): Likewise.  Treat subreg offsets as poly_ints.
        (equiv_constant, cse_insn): Treat subreg offsets as poly_ints.
        * dse.c (find_shift_sequence): Likewise.
        * dwarf2out.c (rtl_for_decl_location): Likewise.
        * expmed.c (extract_low_bits): Likewise.
        * expr.c (emit_group_store, undefined_operand_subword_p): Likewise.
        (expand_expr_real_2): Likewise.
        * final.c (alter_subreg): Likewise.
        (leaf_renumber_regs_insn): Handle 'p'.
        * function.c (assign_parm_find_stack_rtl, assign_parm_setup_stack):
        Treat subreg offsets as poly_ints.
        * fwprop.c (forward_propagate_and_simplify): Likewise.
        * ifcvt.c (noce_emit_move_insn, noce_emit_cmove): Likewise.
        * ira.c (get_subreg_tracking_sizes): Likewise.
        * ira-conflicts.c (go_through_subreg): Likewise.
        * ira-lives.c (process_single_reg_class_operands): Likewise.
        * jump.c (rtx_renumbered_equal_p): Likewise.  Handle 'p'.
        * lower-subreg.c (simplify_subreg_concatn): Take the subreg offset
        as a poly_uint64 rather than an unsigned int.
        (simplify_gen_subreg_concatn, resolve_simple_move): Treat
        subreg offsets as poly_ints.
        * lra-constraints.c (operands_match_p): Handle 'p'.
        (match_reload, curr_insn_transform): Treat subreg offsets as poly_ints.
        * lra-spills.c (assign_mem_slot): Likewise.
        * postreload.c (move2add_valid_value_p): Likewise.
        * recog.c (general_operand, indirect_operand): Likewise.
        * regcprop.c (copy_value, maybe_mode_change): Likewise.
        (copyprop_hardreg_forward_1): Likewise.
        * reginfo.c (simplifiable_subregs_hasher::hash, simplifiable_subregs)
        (record_subregs_of_mode): Likewise.
        * rtlhooks.c (gen_lowpart_general, gen_lowpart_if_possible): Likewise.
        * reload.c (operands_match_p): Handle 'p'.
        (find_reloads_subreg_address): Treat subreg offsets as poly_ints.
        * reload1.c (alter_reg, choose_reload_regs): Likewise.
        (compute_reload_subreg_offset): Likewise, and return an poly_int64.
        * simplify-rtx.c (simplify_truncation, simplify_binary_operation_1):
        (test_vector_ops_duplicate): Treat subreg offsets as poly_ints.
        (simplify_const_poly_int_tests<N>::run): Likewise.
        (simplify_subreg, simplify_gen_subreg): Take the subreg offset as
        a poly_uint64 rather than an unsigned int.
        * valtrack.c (debug_lowpart_subreg): Likewise.
        * var-tracking.c (var_lowpart): Likewise.
        (loc_cmp): Handle 'p'.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * ira.c (get_subreg_tracking_sizes): New function.
        (init_live_subregs): Take an integer size rather than a register.
        (build_insn_chain): Use get_subreg_tracking_sizes.  Update calls
        to init_live_subregs.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expr.c (store_constructor_field): Change bitsize from a
        unsigned HOST_WIDE_INT to a poly_uint64 and bitpos from a
        HOST_WIDE_INT to a poly_int64.
        (store_constructor): Change size from a HOST_WIDE_INT to
        a poly_int64.
        (store_field): Likewise bitsize and bitpos.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expmed.h (store_bit_field): Change bitregion_start and
        bitregion_end from unsigned HOST_WIDE_INT to poly_uint64.
        * expmed.c (adjust_bit_field_mem_for_reg, strict_volatile_bitfield_p)
        (store_bit_field_1, store_integral_bit_field, store_bit_field)
        (store_fixed_bit_field, store_split_bit_field): Likewise.
        * expr.c (store_constructor_field, store_field): Likewise.
        (optimize_bitfield_assignment_op): Likewise.  Make the same change
        to bitsize and bitpos.
        * machmode.h (bit_field_mode_iterator): Change m_bitregion_start
        and m_bitregion_end from HOST_WIDE_INT to poly_int64.  Make the
        same change in the constructor arguments.
        (get_best_mode): Change bitregion_start and bitregion_end from
        unsigned HOST_WIDE_INT to poly_uint64.
        * stor-layout.c (bit_field_mode_iterator::bit_field_mode_iterator):
        Change bitregion_start and bitregion_end from HOST_WIDE_INT to
        poly_int64.
        (bit_field_mode_iterator::next_mode): Update for new types
        of m_bitregion_start and m_bitregion_end.
        (get_best_mode): Change bitregion_start and bitregion_end from
        unsigned HOST_WIDE_INT to poly_uint64.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtl.h (simplify_gen_subreg): Add a temporary overload that
        accepts poly_uint64 offsets.
        * expmed.h (extract_bit_field): Take bitsize and bitnum as
        poly_uint64s rather than unsigned HOST_WIDE_INTs.
        * expmed.c (lowpart_bit_field_p): Likewise.
        (extract_bit_field_as_subreg): New function, split out from...
        (extract_bit_field_1): ...here.  Take bitsize and bitnum as
        poly_uint64s rather than unsigned HOST_WIDE_INTs.  For vector
        extractions, check that BITSIZE matches the size of the extracted
        value and that BITNUM is an exact multiple of that size.
        If all else fails, try forcing the value into memory if
        BITNUM is variable, and adjusting the address so that the
        offset is constant.  Split the part that can only handle constant
        bitsize and bitnum out into...
        (extract_integral_bit_field): ...this new function.
        (extract_bit_field): Take bitsize and bitnum as poly_uint64s
        rather than unsigned HOST_WIDE_INTs.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expmed.h (store_bit_field): Take bitsize and bitnum as
        poly_uint64s rather than unsigned HOST_WIDE_INTs.
        * expmed.c (simple_mem_bitfield_p): Likewise.  Add a parameter
        that returns the byte size.
        (store_bit_field_1): Take bitsize and bitnum as
        poly_uint64s rather than unsigned HOST_WIDE_INTs.  Update call
        to simple_mem_bitfield_p.  Split the part that can only handle
        constant bitsize and bitnum out into...
        (store_integral_bit_field): ...this new function.
        (store_bit_field): Take bitsize and bitnum as poly_uint64s rather
        than unsigned HOST_WIDE_INTs.
        (extract_bit_field_1): Update call to simple_mem_bitfield_p.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * lra-int.h (lra_reg): Change offset from int to poly_int64.
        (lra_insn_recog_data): Change sp_offset from HOST_WIDE_INT
        to poly_int64.
        (lra_eliminate_regs_1, eliminate_regs_in_insn): Change
        update_sp_offset from a HOST_WIDE_INT to a poly_int64.
        (lra_update_reg_val_offset, lra_reg_val_equal_p): Take the
        offset as a poly_int64 rather than an int.
        * lra-assigns.c (find_hard_regno_for_1): Handle poly_int64 offsets.
        (setup_live_pseudos_and_spill_after_risky_transforms): Likewise.
        * lra-constraints.c (equiv_address_substitution): Track offsets
        as poly_int64s.
        (emit_inc): Check poly_int_rtx_p instead of CONST_INT_P.
        (curr_insn_transform): Handle the new form of sp_offset.
        * lra-eliminations.c (lra_elim_table): Change previous_offset
        and offset from HOST_WIDE_INT to poly_int64.
        (print_elim_table, update_reg_eliminate): Update accordingly.
        (self_elim_offsets): Change from HOST_WIDE_INT to poly_int64_pod.
        (get_elimination): Update accordingly.
        (form_sum): Check poly_int_rtx_p instead of CONST_INT_P.
        (lra_eliminate_regs_1, eliminate_regs_in_insn): Change
        update_sp_offset from a HOST_WIDE_INT to a poly_int64.  Handle
        poly_int64 offsets generally.
        (curr_sp_change): Change from HOST_WIDE_INT to poly_int64.
        (mark_not_eliminable, init_elimination): Update accordingly.
        (remove_reg_equal_offset_note): Return a bool and pass the new
        offset back by pointer as a poly_int64.
        * lra-remat.c (change_sp_offset): Take sp_offset as a poly_int64
        rather than a HOST_WIDE_INT.
        (do_remat): Track offsets poly_int64s.
        * lra.c (lra_update_insn_recog_data, setup_sp_offset): Likewise.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtl.h (mem_attrs): Add a default constructor.  Change size and
        offset from HOST_WIDE_INT to poly_int64.
        * emit-rtl.h (set_mem_offset, set_mem_size, adjust_address_1)
        (adjust_automodify_address_1, set_mem_attributes_minus_bitpos)
        (widen_memory_access): Take the sizes and offsets as poly_int64s
        rather than HOST_WIDE_INTs.
        * alias.c (ao_ref_from_mem): Handle the new form of MEM_OFFSET.
        (offset_overlap_p): Take poly_int64s rather than HOST_WIDE_INTs
        and ints.
        (adjust_offset_for_component_ref): Change the offset from a
        HOST_WIDE_INT to a poly_int64.
        (nonoverlapping_memrefs_p): Track polynomial offsets and sizes.
        * cfgcleanup.c (merge_memattrs): Update after mem_attrs changes.
        * dce.c (find_call_stack_args): Likewise.
        * dse.c (record_store): Likewise.
        * dwarf2out.c (tls_mem_loc_descriptor, dw_sra_loc_expr): Likewise.
        * print-rtl.c (rtx_writer::print_rtx): Likewise.
        * read-rtl-function.c (test_loading_mem): Likewise.
        * rtlanal.c (may_trap_p_1): Likewise.
        * simplify-rtx.c (delegitimize_mem_from_attrs): Likewise.
        * var-tracking.c (int_mem_offset, track_expr_p): Likewise.
        * emit-rtl.c (mem_attrs_eq_p, get_mem_align_offset): Likewise.
        (mem_attrs::mem_attrs): New function.
        (set_mem_attributes_minus_bitpos): Change bitpos from a
        HOST_WIDE_INT to poly_int64.
        (set_mem_alias_set, set_mem_addr_space, set_mem_align, set_mem_expr)
        (clear_mem_offset, clear_mem_size, change_address)
        (get_spill_slot_decl, set_mem_attrs_for_spill): Directly
        initialize mem_attrs.
        (set_mem_offset, set_mem_size, adjust_address_1)
        (adjust_automodify_address_1, offset_address, widen_memory_access):
        Likewise.  Take poly_int64s rather than HOST_WIDE_INT.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtlanal.c (rtx_addr_can_trap_p_1): Take the offset and size
        as poly_int64s rather than HOST_WIDE_INTs.  Use a size of -1
        rather than 0 to represent an unknown size.  Assert that the size
        is known when the mode isn't BLKmode.
        (may_trap_p_1): Use -1 for unknown sizes.
        (rtx_addr_can_trap_p): Likewise.  Pass BLKmode rather than VOIDmode.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * dse.c (store_info): Change offset and width from HOST_WIDE_INT
        to poly_int64.  Update commentary for positions_needed.large.
        (read_info_type): Change offset and width from HOST_WIDE_INT
        to poly_int64.
        (set_usage_bits): Likewise.
        (canon_address): Return the offset as a poly_int64 rather than
        a HOST_WIDE_INT.  Use strip_offset_and_add.
        (set_all_positions_unneeded, any_positions_needed_p): Use
        positions_needed.large to track stores with non-constant widths.
        (all_positions_needed_p): Likewise.  Take the offset and width
        as poly_int64s rather than ints.  Assert that rhs is nonnull.
        (record_store): Cope with non-constant offsets and widths.
        Nullify the rhs of an earlier store if we can't tell which bytes
        of it are needed.
        (find_shift_sequence): Take the access_size and shift as poly_int64s
        rather than ints.
        (get_stored_val): Take the read_offset and read_width as poly_int64s
        rather than HOST_WIDE_INTs.
        (check_mem_read_rtx, scan_stores, scan_reads, dse_step5): Handle
        non-constant offsets and widths.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * inchash.h (inchash::hash::add_poly_int): New function.
        * tree-ssa-alias.h (ao_ref::offset, ao_ref::size, ao_ref::max_size):
        Use poly_int64 rather than HOST_WIDE_INT.
        (ao_ref::max_size_known_p): New function.
        * tree-ssa-sccvn.h (vn_reference_op_struct::off): Use poly_int64_pod
        rather than HOST_WIDE_INT.
        * tree-ssa-alias.c (ao_ref_base): Apply get_ref_base_and_extent
        to temporaries until its interface is adjusted to match.
        (ao_ref_init_from_ptr_and_size): Handle polynomial offsets and sizes.
        (aliasing_component_refs_p, decl_refs_may_alias_p)
        (indirect_ref_may_alias_decl_p, indirect_refs_may_alias_p): Take
        the offsets and max_sizes as poly_int64s instead of HOST_WIDE_INTs.
        (refs_may_alias_p_1, stmt_kills_ref_p): Adjust for changes to
        ao_ref fields.
        * alias.c (ao_ref_from_mem): Likewise.
        * tree-ssa-dce.c (mark_aliased_reaching_defs_necessary_1): Likewise.
        * tree-ssa-dse.c (valid_ao_ref_for_dse, normalize_ref)
        (clear_bytes_written_by, setup_live_bytes_from_ref, compute_trims)
        (maybe_trim_complex_store, maybe_trim_constructor_store)
        (live_bytes_read, dse_classify_store): Likewise.
        * tree-ssa-sccvn.c (vn_reference_compute_hash, vn_reference_eq):
        (copy_reference_ops_from_ref, ao_ref_init_from_vn_reference)
        (fully_constant_vn_reference_p, valueize_refs_1): Likewise.
        (vn_reference_lookup_3): Likewise.
        * tree-ssa-uninit.c (warn_uninitialized_vars): Likewise.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-ssa-alias.c (indirect_ref_may_alias_decl_p)
        (indirect_refs_may_alias_p): Use ranges_may_overlap_p
        instead of ranges_overlap_p.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-ssa-alias.c (same_addr_size_stores_p): Take the offsets and
        sizes as poly_int64s rather than HOST_WIDE_INTs.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * gimple-fold.h (fold_ctor_reference): Take the offset and size
        as poly_uint64 rather than unsigned HOST_WIDE_INT.
        * gimple-fold.c (fold_ctor_reference): Likewise.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (dwarf_poly_indeterminate_value): New hook.
        * targhooks.h (default_dwarf_poly_indeterminate_value): Declare.
        * targhooks.c (default_dwarf_poly_indeterminate_value): New function.
        * doc/tm.texi.in (TARGET_DWARF_POLY_INDETERMINATE_VALUE): Document.
        * doc/tm.texi: Regenerate.
        * dwarf2out.h (build_cfa_loc, build_cfa_aligned_loc): Take the
        offset as a poly_int64.
        * dwarf2out.c (new_reg_loc_descr): Move later in file.  Take the
        offset as a poly_int64.
        (loc_descr_plus_const, loc_list_plus_const, build_cfa_aligned_loc):
        Take the offset as a poly_int64.
        (build_cfa_loc): Likewise.  Use loc_descr_plus_const.
        (frame_pointer_fb_offset): Change to a poly_int64.
        (int_loc_descriptor): Take the offset as a poly_int64.  Use
        targetm.dwarf_poly_indeterminate_value for polynomial offsets.
        (based_loc_descr): Take the offset as a poly_int64.
        Use strip_offset_and_add to handle (plus X (const)).
        Use new_reg_loc_descr instead of an open-coded version of the
        previous implementation.
        (mem_loc_descriptor): Handle CONST_POLY_INT.
        (compute_frame_pointer_to_fb_displacement): Take the offset as a
        poly_int64.  Use strip_offset_and_add to handle (plus X (const)).

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtl.h (reg_attrs::offset): Change from HOST_WIDE_INT to poly_int64.
        (gen_rtx_REG_offset): Take the offset as a poly_int64.
        * inchash.h (inchash::hash::add_poly_hwi): New function.
        * gengtype.c (main): Register poly_int64.
        * emit-rtl.c (reg_attr_hasher::hash): Use inchash.  Treat the
        offset as a poly_int.
        (reg_attr_hasher::equal): Use must_eq to compare offsets.
        (get_reg_attrs, update_reg_offset, gen_rtx_REG_offset): Take the
        offset as a poly_int64.
        (set_reg_attrs_from_value): Treat the offset as a poly_int64.
        * print-rtl.c (print_poly_int): New function.
        (rtx_writer::print_rtx_operand_code_r): Treat REG_OFFSET as
        a poly_int.
        * var-tracking.c (track_offset_p, get_tracked_reg_offset): New
        functions.
        (var_reg_set, var_reg_delete_and_set, var_reg_delete): Use them.
        (same_variable_part_p, track_loc_p): Take the offset as a poly_int64.
        (vt_get_decl_and_offset): Return the offset as a poly_int64.
        Enforce track_offset_p for parts of a PARALLEL.
        (vt_add_function_parameter): Use const_offset for the final
        offset to track.  Use get_tracked_reg_offset for the parts
        of a PARALLEL.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (truly_noop_truncation): Take poly_uint64s instead of
        unsigned ints.  Change default to hook_bool_puint64_puint64_true.
        * doc/tm.texi: Regenerate.
        * hooks.h (hook_bool_uint_uint_true): Delete.
        (hook_bool_puint64_puint64_true): Declare.
        * hooks.c (hook_bool_uint_uint_true): Delete.
        (hook_bool_puint64_puint64_true): New function.
        * config/mips/mips.c (mips_truly_noop_truncation): Take poly_uint64s
        instead of unsigned ints.
        * config/spu/spu.c (spu_truly_noop_truncation): Likewise.
        * config/tilegx/tilegx.c (tilegx_truly_noop_truncation): Likewise.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * optabs.h (expand_operand): Add an int_value field.
        (create_expand_operand): Add an int_value parameter and use it
        to initialize the new expand_operand field.
        (create_integer_operand): Replace with a declaration of a function
        that accepts poly_int64s.  Move the implementation to...
        * optabs.c (create_integer_operand): ...here.
        (maybe_legitimize_operand): For EXPAND_INTEGER, check whether
        the mode preserves the value of int_value, instead of calling
        const_int_operand on the rtx.  Use gen_int_mode to generate
        the new rtx.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * dumpfile.h (dump_dec): Declare.
        * dumpfile.c (dump_dec): New function.
        * pretty-print.h (pp_wide_integer): Turn into a function and
        declare a poly_int version.
        * pretty-print.c (pp_wide_integer): New function for poly_ints.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/generic.texi (POLY_INT_CST): Document.
        * tree.def (POLY_INT_CST): New tree code.
        * treestruct.def (TS_POLY_INT_CST): New tree layout.
        * tree-core.h (tree_poly_int_cst): New struct.
        (tree_node): Add a poly_int_cst field.
        * tree.h (POLY_INT_CST_P, POLY_INT_CST_COEFF): New macros.
        (wide_int_to_tree, force_fit_type): Take a poly_wide_int_ref
        instead of a wide_int_ref.
        (build_int_cst, build_int_cst_type): Take a poly_int64 instead
        of a HOST_WIDE_INT.
        (build_int_cstu, build_array_type_nelts): Take a poly_uint64
        instead of an unsigned HOST_WIDE_INT.
        (build_poly_int_cst, tree_fits_poly_int64_p, tree_fits_poly_uint64_p)
        (ptrdiff_tree_p): Declare.
        (tree_to_poly_int64, tree_to_poly_uint64): Likewise.  Provide
        extern inline implementations if the target doesn't use POLY_INT_CST.
        (poly_int_tree_p): New function.
        (wi::unextended_tree): New class.
        (wi::int_traits <unextended_tree>): New override.
        (wi::extended_tree): Add a default constructor.
        (wi::extended_tree::get_tree): New function.
        (wi::widest_extended_tree, wi::offset_extended_tree): New typedefs.
        (wi::tree_to_widest_ref, wi::tree_to_offset_ref): Use them.
        (wi::tree_to_poly_widest_ref, wi::tree_to_poly_offset_ref)
        (wi::tree_to_poly_wide_ref): New typedefs.
        (wi::ints_for): Provide overloads for extended_tree and
        unextended_tree.
        (poly_int_cst_value, wi::to_poly_widest, wi::to_poly_offset)
        (wi::to_wide): New functions.
        (wi::fits_to_boolean_p, wi::fits_to_tree_p): Handle poly_ints.
        * tree.c (poly_int_cst_hasher): New struct.
        (poly_int_cst_hash_table): New variable.
        (tree_node_structure_for_code, tree_code_size, simple_cst_equal)
        (valid_constant_size_p, add_expr, drop_tree_overflow): Handle
        POLY_INT_CST.
        (initialize_tree_contains_struct): Handle TS_POLY_INT_CST.
        (init_ttree): Initialize poly_int_cst_hash_table.
        (build_int_cst, build_int_cst_type, build_invariant_address): Take
        a poly_int64 instead of a HOST_WIDE_INT.
        (build_int_cstu, build_array_type_nelts): Take a poly_uint64
        instead of an unsigned HOST_WIDE_INT.
        (wide_int_to_tree): Rename to...
        (wide_int_to_tree_1): ...this.
        (build_new_poly_int_cst, build_poly_int_cst): New functions.
        (force_fit_type): Take a poly_wide_int_ref instead of a wide_int_ref.
        (wide_int_to_tree): New function that takes a poly_wide_int_ref.
        (ptrdiff_tree_p, tree_to_poly_int64, tree_to_poly_uint64)
        (tree_fits_poly_int64_p, tree_fits_poly_uint64_p): New functions.
        * lto-streamer-out.c (DFS::DFS_write_tree_body, hash_tree): Handle
        TS_POLY_INT_CST.
        * tree-streamer-in.c (lto_input_ts_poly_tree_pointers): Likewise.
        (streamer_read_tree_body): Likewise.
        * tree-streamer-out.c (write_ts_poly_tree_pointers): Likewise.
        (streamer_write_tree_body): Likewise.
        * tree-streamer.c (streamer_check_handled_ts_structures): Likewise.
        * asan.c (asan_protect_global): Require the size to be an INTEGER_CST.
        * cfgexpand.c (expand_debug_expr): Handle POLY_INT_CST.
        * expr.c (expand_expr_real_1, const_vector_from_tree): Likewise.
        * gimple-expr.h (is_gimple_constant): Likewise.
        * gimplify.c (maybe_with_size_expr): Likewise.
        * print-tree.c (print_node): Likewise.
        * tree-data-ref.c (data_ref_compare_tree): Likewise.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        * tree-ssa-address.c (addr_for_mem_ref): Likewise.
        * tree-vect-data-refs.c (dr_group_sort_cmp): Likewise.
        * tree-vrp.c (compare_values_warnv): Likewise.
        * tree-ssa-loop-ivopts.c (determine_base_object, constant_multiple_of)
        (get_loop_invariant_expr, add_candidate_1, get_computation_aff_1)
        (force_expr_to_var_cost): Likewise.
        * tree-ssa-loop.c (for_each_index): Likewise.
        * fold-const.h (build_invariant_address, size_int_kind): Take a
        poly_int64 instead of a HOST_WIDE_INT.
        * fold-const.c (fold_negate_expr_1, const_binop, const_unop)
        (fold_convert_const, multiple_of_p, fold_negate_const): Handle
        POLY_INT_CST.
        (size_binop_loc): Likewise.  Allow int_const_binop_1 to fail.
        (int_const_binop_2): New function, split out from...
        (int_const_binop_1): ...here.  Handle POLY_INT_CST.
        (size_int_kind): Take a poly_int64 instead of a HOST_WIDE_INT.
        * expmed.c (make_tree): Handle CONST_POLY_INT_P.
        * gimple-ssa-strength-reduction.c (slsr_process_add)
        (slsr_process_mul): Check for INTEGER_CSTs before using them
        as candidates.
        * stor-layout.c (bits_from_bytes): New function.
        (bit_from_pos): Use it.
        (layout_type): Likewise.  For vectors, multiply the TYPE_SIZE_UNIT
        by BITS_PER_UNIT to get the TYPE_SIZE.
        * tree-cfg.c (verify_expr, verify_types_in_gimple_reference): Allow
        MEM_REF and TARGET_MEM_REF offsets to be a POLY_INT_CST.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/rtl.texi (const_poly_int): Document.  Also document the
        rtl sharing behavior.
        * gengenrtl.c (excluded_rtx): Return true for CONST_POLY_INT.
        * rtl.h (const_poly_int_def): New struct.
        (rtx_def::u): Add a cpi field.
        (CASE_CONST_UNIQUE, CASE_CONST_ANY): Add CONST_POLY_INT.
        (CONST_POLY_INT_P, CONST_POLY_INT_COEFFS): New macros.
        (wi::rtx_to_poly_wide_ref): New typedef
        (const_poly_int_value, wi::to_poly_wide, rtx_to_poly_int64)
        (poly_int_rtx_p): New functions.
        (trunc_int_for_mode): Declare a poly_int64 version.
        (plus_constant): Take a poly_int64 instead of a HOST_WIDE_INT.
        (immed_wide_int_const): Take a poly_wide_int_ref rather than
        a wide_int_ref.
        (strip_offset): Declare.
        (strip_offset_and_add): New function.
        * rtl.def (CONST_POLY_INT): New rtx code.
        * rtl.c (rtx_size): Handle CONST_POLY_INT.
        (shared_const_p): Use poly_int_rtx_p.
        * emit-rtl.h (gen_int_mode): Take a poly_int64 instead of a
        HOST_WIDE_INT.
        (gen_int_shift_amount): Likewise.
        * emit-rtl.c (const_poly_int_hasher): New class.
        (const_poly_int_htab): New variable.
        (init_emit_once): Initialize it when NUM_POLY_INT_COEFFS > 1.
        (const_poly_int_hasher::hash): New function.
        (const_poly_int_hasher::equal): Likewise.
        (gen_int_mode): Take a poly_int64 instead of a HOST_WIDE_INT.
        (immed_wide_int_const): Rename to...
        (immed_wide_int_const_1): ...this and make static.
        (immed_wide_int_const): New function, taking a poly_wide_int_ref
        instead of a wide_int_ref.
        (gen_int_shift_amount): Take a poly_int64 instead of a HOST_WIDE_INT.
        (gen_lowpart_common): Handle CONST_POLY_INT.
        * cse.c (hash_rtx_cb, equiv_constant): Likewise.
        * cselib.c (cselib_hash_rtx): Likewise.
        * dwarf2out.c (const_ok_for_output_1): Likewise.
        * expr.c (convert_modes): Likewise.
        * print-rtl.c (rtx_writer::print_rtx, print_value): Likewise.
        * rtlhash.c (add_rtx): Likewise.
        * explow.c (trunc_int_for_mode): Add a poly_int64 version.
        (plus_constant): Take a poly_int64 instead of a HOST_WIDE_INT.
        Handle existing CONST_POLY_INT rtxes.
        * expmed.h (expand_shift): Take a poly_int64 instead of a
        HOST_WIDE_INT.
        * expmed.c (expand_shift): Likewise.
        * rtlanal.c (strip_offset): New function.
        (commutative_operand_precedence): Give CONST_POLY_INT the same
        precedence as CONST_DOUBLE and put CONST_WIDE_INT between that
        and CONST_INT.
        * rtl-tests.c (const_poly_int_tests): New struct.
        (rtl_tests_c_tests): Use it.
        * simplify-rtx.c (simplify_const_unary_operation): Handle
        CONST_POLY_INT.
        (simplify_const_binary_operation): Likewise.
        (simplify_binary_operation_1): Fold additions of symbolic constants
        and CONST_POLY_INTs.
        (simplify_subreg): Handle extensions and truncations of
        CONST_POLY_INTs.
        (simplify_const_poly_int_tests): New struct.
        (simplify_rtx_c_tests): Use it.
        * wide-int.h (storage_ref): Add default constructor.
        (wide_int_ref_storage): Likewise.
        (trailing_wide_ints): Use GTY((user)).
        (trailing_wide_ints::operator[]): Add a const version.
        (trailing_wide_ints::get_precision): New function.
        (trailing_wide_ints::extra_size): Likewise.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * emit-rtl.h (gen_int_shift_amount): Declare.
        * emit-rtl.c (gen_int_shift_amount): New function.
        * asan.c (asan_emit_stack_protection): Use gen_int_shift_amount
        instead of GEN_INT.
        * calls.c (shift_return_value): Likewise.
        * cse.c (fold_rtx): Likewise.
        * dse.c (find_shift_sequence): Likewise.
        * expmed.c (init_expmed_one_mode, store_bit_field_1, expand_shift_1)
        (expand_shift, expand_smod_pow2): Likewise.
        * lower-subreg.c (shift_cost): Likewise.
        * optabs.c (expand_superword_shift, expand_doubleword_mult)
        (expand_unop, expand_binop, shift_amt_for_vec_perm_mask)
        (expand_vec_perm_var): Likewise.
        * simplify-rtx.c (simplify_unary_operation_1): Likewise.
        (simplify_binary_operation_1): Likewise.
        * combine.c (try_combine, find_split_point, force_int_to_mode)
        (simplify_shift_const_1, simplify_shift_const): Likewise.
        (change_zero_ext): Likewise.  Use simplify_gen_binary.

2017-12-20  Richard Sandiford  <richard.sandiford@linaro.org>

        * poly-int.h (multiple_p): Fix handling of two non-poly_ints.

2017-12-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * doc/invoke.texi (ARM Options): Document accepted extension options
        for -march=armv8.3-a.

2017-12-20  Richard Earnshaw  <rearnsha@arm.com>

        PR target/83105
        * config.gcc (arm*-*-linux*): When configured with --with-float=hard
        or --with-float=softfp, set the default CPU to arm10e.

2017-12-20  Eric Botcazou  <ebotcazou@adacore.com>

        * config/visium/constraints.md (J, K, L): Use IN_RANGE macro.
        * config/visium/predicates.md (const_shift_operand): Likewise.
        * config/visium/visium.c (visium_legitimize_address): Fix oversight.
        (visium_legitimize_reload_address): Likewise.

2017-12-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/82975
        * config/arm/arm.h (TEST_REGNO): Adjust comment as expected in r255830.

2017-12-20  Jakub Jelinek  <jakub@redhat.com>

        PR c++/83490
        * calls.c (compute_argument_addresses): Ignore TYPE_EMPTY_P arguments.

2017-12-20  Julia Koval  <julia.koval@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_VPCLMULQDQ_SET,
        OPTION_MASK_ISA_VPCLMULQDQ_UNSET): New.
        (ix86_handle_option): Handle -mvpclmulqdq, move cx6 to flags2.
        * config.gcc: Include vpclmulqdqintrin.h.
        * config/i386/cpuid.h: Handle bit_VPCLMULQDQ.
        * config/i386/driver-i386.c (host_detect_local_cpu): Handle
        -mvpclmulqdq.
        * config/i386/i386-builtin.def (__builtin_ia32_vpclmulqdq_v2di,
        __builtin_ia32_vpclmulqdq_v4di, __builtin_ia32_vpclmulqdq_v8di): New.
        * config/i386/i386-c.c (__VPCLMULQDQ__): New.
        * config/i386/i386.c (isa2_opts): Add -mcx16.
        (isa_opts): Add -mpclmulqdq, remove -mcx16.
        (ix86_option_override_internal): Move mcx16 to flags2.
        (ix86_valid_target_attribute_inner_p): Add vpclmulqdq.
        (ix86_expand_builtin): Handle OPTION_MASK_ISA_VPCLMULQDQ.
        * config/i386/i386.h (TARGET_VPCLMULQDQ, TARGET_VPCLMULQDQ_P): New.
        * config/i386/i386.opt: Add mvpclmulqdq, move mcx16 to flags2.
        * config/i386/immintrin.h: Include vpclmulqdqintrin.h.
        * config/i386/sse.md (vpclmulqdq_<mode>): New pattern.
        * config/i386/vpclmulqdqintrin.h (_mm512_clmulepi64_epi128,
        _mm_clmulepi64_epi128, _mm256_clmulepi64_epi128): New intrinsics.
        * doc/invoke.texi: Add -mvpclmulqdq.

2017-12-20  Tom de Vries  <tom@codesourcery.com>

        PR middle-end/83423
        * config/i386/i386.c (ix86_static_chain): Move
        DECL_STATIC_CHAIN test ...
        * calls.c (rtx_for_static_chain): ... here.  New function.
        * calls.h (rtx_for_static_chain): Declare.
        * builtins.c (expand_builtin_setjmp_receiver): Use rtx_for_static_chain
        instead of targetm.calls.static_chain.
        * df-scan.c (df_get_entry_block_def_set): Same.

2017-12-19  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/83493
        * graphite-isl-ast-to-gimple.c (translate_isl_ast_node_for): Unshare ub
        and lb.

2017-12-19  Jakub Jelinek  <jakub@redhat.com>

        * gimple-ssa-sprintf.c (format_directive): Use inform_n instead of
        inform with hardcoded english plural handling.

2017-12-18  Jeff Law  <law@redhat.com>

        PR tree-optimization/83477
        * tree-ssa-threadedge.c (record_temporary_equivalences_from_phis): For
        a non-virtual PHI, always push a new range.

2017-12-19  Martin Sebor  <msebor@redhat.com>

        PR middle-end/77608
        * builtins.c (compute_objsize): Handle non-constant offsets.

2017-12-19  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/83444
        * tree-ssa-strlen.c (strlen_check_and_optimize_stmt): For the
        character load case, if get_stridx on MEM_REF's operand doesn't
        look usable, retry with get_addr_stridx.

2017-12-19  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/83422
        * var-tracking.c (vt_debug_insns_local): Do not drop markers.
        (variable_tracking_main_1): Keep markers even when VTA fails.

        PR bootstrap/83396
        * cfgexpand.c (expand_gimple_basic_block): Expand label first,
        even if there are markers before it.
        * cfgrtl.c (rtl_verify_bb_layout): Reject DEBUG_INSNs outside BBs.

2017-12-19  Jakub Jelinek  <jakub@redhat.com>

        * read-rtl.c (parse_reg_note_name): Replace Yoda conditions with
        typical order conditions.
        * sel-sched.c (extract_new_fences_from): Likewise.
        * config/visium/constraints.md (J, K, L): Likewise.
        * config/visium/predicates.md (const_shift_operand): Likewise.
        * config/visium/visium.c (visium_legitimize_address,
        visium_legitimize_reload_address): Likewise.
        * config/m68k/m68k.c (output_reg_adjust, emit_reg_adjust): Likewise.
        * config/arm/arm.c (arm_block_move_unaligned_straight): Likewise.
        * config/avr/constraints.md (Y01, Ym1, Y02, Ym2): Likewise.
        * config/avr/avr-log.c (avr_vdump, avr_log_set_avr_log,
        SET_DUMP_DETAIL): Likewise.
        * config/avr/predicates.md (const_8_16_24_operand): Likewise.
        * config/avr/avr.c (STR_PREFIX_P, avr_popcount_each_byte,
        avr_is_casesi_sequence, avr_casei_sequence_check_operands,
        avr_set_core_architecture, avr_set_current_function,
        avr_legitimize_reload_address, avr_asm_len, avr_print_operand,
        output_movqi, output_movsisf, avr_out_plus, avr_out_bitop,
        avr_out_fract, avr_adjust_insn_length, avr_encode_section_info,
        avr_2word_insn_p, output_reload_in_const, avr_has_nibble_0xf,
        avr_map_decompose, avr_fold_builtin): Likewise.
        * config/avr/driver-avr.c (avr_devicespecs_file): Likewise.
        * config/avr/gen-avr-mmcu-specs.c (str_prefix_p, print_mcu): Likewise.
        * config/i386/i386.c (ix86_parse_stringop_strategy_string): Likewise.
        * config/m32c/m32c-pragma.c (m32c_pragma_memregs): Likewise.
        * config/m32c/m32c.c (m32c_conditional_register_usage,
        m32c_address_cost): Likewise.
        * config/m32c/predicates.md (shiftcount_operand,
        longshiftcount_operand): Likewise.
        * config/iq2000/iq2000.c (iq2000_expand_prologue): Likewise.
        * config/nios2/nios2.c (nios2_handle_custom_fpu_insn_option,
        can_use_cdx_ldstw): Likewise.
        * config/nios2/nios2.h (CDX_REG_P): Likewise.
        * config/cr16/cr16.h (RETURN_ADDR_RTX, REGNO_MODE_OK_FOR_BASE_P):
        Likewise.
        * config/cr16/cr16.md (*mov<mode>_double): Likewise.
        * config/cr16/cr16.c (cr16_create_dwarf_for_multi_push): Likewise.
        * config/h8300/h8300.c (h8300_rtx_costs, get_shift_alg): Likewise.
        * config/vax/constraints.md (U06, U08, U16, CN6, S08, S16): Likewise.
        * config/vax/vax.c (adjacent_operands_p): Likewise.
        * config/ft32/constraints.md (L, b, KA): Likewise.
        * config/ft32/ft32.c (ft32_load_immediate, ft32_expand_prologue):
        Likewise.
        * cfgexpand.c (expand_stack_alignment): Likewise.
        * gcse.c (insert_expr_in_table): Likewise.
        * print-rtl.c (rtx_writer::print_rtx_operand_codes_E_and_V): Likewise.
        * cgraphunit.c (cgraph_node::expand): Likewise.
        * ira-build.c (setup_min_max_allocno_live_range_point): Likewise.
        * emit-rtl.c (add_insn): Likewise.
        * input.c (dump_location_info): Likewise.
        * passes.c (NEXT_PASS): Likewise.
        * read-rtl-function.c (parse_note_insn_name,
        function_reader::read_rtx_operand_r, function_reader::parse_mem_expr):
        Likewise.
        * sched-rgn.c (sched_rgn_init): Likewise.
        * diagnostic-show-locus.c (layout::show_ruler): Likewise.
        * combine.c (find_split_point, simplify_if_then_else, force_to_mode,
        if_then_else_cond, simplify_shift_const_1, simplify_comparison):
        Likewise.
        * explow.c (eliminate_constant_term): Likewise.
        * final.c (leaf_renumber_regs_insn): Likewise.
        * cfgrtl.c (print_rtl_with_bb): Likewise.
        * genhooks.c (emit_init_macros): Likewise.
        * poly-int.h (maybe_ne, maybe_le, maybe_lt): Likewise.
        * tree-data-ref.c (conflict_fn): Likewise.
        * selftest.c (assert_streq): Likewise.
        * expr.c (store_constructor_field, expand_expr_real_1): Likewise.
        * fold-const.c (fold_range_test, extract_muldiv_1, fold_truth_andor,
        fold_binary_loc, multiple_of_p): Likewise.
        * reload.c (push_reload, find_equiv_reg): Likewise.
        * et-forest.c (et_nca, et_below): Likewise.
        * dbxout.c (dbxout_symbol_location): Likewise.
        * reorg.c (relax_delay_slots): Likewise.
        * dojump.c (do_compare_rtx_and_jump): Likewise.
        * gengtype-parse.c (type): Likewise.
        * simplify-rtx.c (simplify_gen_ternary, simplify_gen_relational,
        simplify_const_relational_operation): Likewise.
        * reload1.c (do_output_reload): Likewise.
        * dumpfile.c (get_dump_file_info_by_switch): Likewise.
        * gengtype.c (type_for_name): Likewise.
        * gimple-ssa-sprintf.c (format_directive): Likewise.

2017-12-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/82975
        * config/arm/arm.h (TEST_REGNO): Check reg_renumber is set before
        accessing it.  Adjust comment.

2017-12-19  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/81914
        * predict.c (zero_one_minusone): New function.
        (apply_return_prediction): Avoid return prediction for functions
        returning only -1, 0 and 1 values, unless they only return -1 and 0
        or 0 and 1.

2017-12-19  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (legitimate_scaled_address_p): Clean
        fall-through warning.
        (arc_compute_frame_size): Remove unused variables.
        (arc_print_operand): Fix fprintif format.
        (arc_can_follow_jump): Clean fall-through warning.

2017-12-19  Marek Polacek  <polacek@redhat.com>

        PR c++/83489
        * config/i386/i386.c (init_cumulative_args): Don't check TYPE_EMPTY_P
        on an error node.

2017-12-19  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (overriderregs): New variable.
        (arc_override_options): Track fixed/call saved/call options.
        (arc_conditional_register_usage): Check against overrideregs
        variable whenever we change register properties.

2017-12-19  Nathan Sidwell  <nathan@acm.org>

        * opts.c (finish_options): Don't prefix dump_base_name if it
        already contains directories.

2017-12-19  Martin Liska  <mliska@suse.cz>

        PR rtl-optimization/82675
        * loop-unroll.c (unroll_loop_constant_iterations): Allocate one
        more element in sbitmap.

2017-12-19  Paolo Carlini  <paolo.carlini@oracle.com>

        * gimplify.c (gimplify_expr): Use error_operand_p.

2017-12-19  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        PR target/83387
        * config/rs6000/t-rtems (MULTILIB_REQUIRED): Remove 64-bit soft-float
        multilib.

2017-12-19  Daniel Cederman  <cederman@gaisler.com>

        * config/sparc/sparc.c (sparc_do_work_around_errata): Make sure
        the jump is to a label.

2017-12-19  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/83444
        * tree-ssa-strlen.c (strlen_check_and_optimize_stmt): Optimize
        character loads.

        PR ipa/82801
        PR ipa/83346
        * ipa-inline.c (flatten_remove_node_hook): New function.
        (ipa_inline): Keep only nodes with flatten attribute at the end of
        the array in the order from ipa_reverse_postorder, only walk that
        portion of array for flattening, if there is more than one such
        node, temporarily register a removal hook and ignore removed nodes.

        PR tree-optimization/80631
        * tree-vect-loop.c (vect_create_epilog_for_reduction): Compare
        induc_code against MAX_EXPR or MIN_EXPR instead of reduc_fn against
        IFN_REDUC_MAX or IFN_REDUC_MIN.

2017-12-18  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (record_equivalences_from_phis): Do not
        record symbolic equivalences from backedges in the CFG.

        Revert
        2017-11-19  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (record_equivalences_from_phis): Fix handling
        of degenerates resulting from ignoring an edge.

2017-12-18  Martin Sebor  <msebor@redhat.com>

        PR middle-end/83373
        PR tree-optimization/78450
        * tree-ssa-strlen.c (maybe_set_strlen_range): New function.
        (handle_builtin_strlen): Call it.

2017-12-18  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/83424
        * rtlanal.c (dead_or_set_regno_p): Handle CLOBBER just like SET.

2017-12-18  Marek Polacek  <polacek@redhat.com>

        PR middle-end/83463
        * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref):
        Check if TYPE is INTEGRAL_TYPE_P before accessing its min/max
        values.

2017-12-18  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (maddsidi4, maddsidi4_split): Update pattern.
        (umaddsidi4, umaddsidi_split): Likewise.

2017-12-18  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_legitimate_constant_p): Always check all
        constants.

2017-12-18  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/83420
        * config/s390/s390.c (s390_option_override): Avoid strncpy.

2017-12-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81877
        * tree-ssa-loop-im.c (ref_indep_loop_p): Remove safelen parameters.
        (outermost_indep_loop): Adjust.
        (ref_indep_loop_p_1): Likewise.  Remove safelen handling again.
        (can_sm_ref_p): Adjust.

2017-12-18  Richard Biener  <rguenther@suse.de>

        PR middle-end/77291
        * tree.c (array_at_struct_end_p): Return true if the underlying
        object has space for at least one element in excess of what
        the array domain specifies.

2017-12-17  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/extend.texi (x86 Function Attributes): Reformat nocf_check
        example to avoid overfull hbox.
        * doc/invoke.texi (Option Summary): Add missing @gol.
        (C++ Dialect Options): Reformat -Wnoexcept-type example to avoid
        overfull hbox.

2017-12-17  Sandra Loosemore  <sandra@codesourcery.com>
            Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * doc/invoke.texi (Option Summary): Add -mverbose-cost-dump
        to AArch64 and ARM lists, plus missing -mflip-thumb for ARM.
        (AArch64 Options): Document -mverbose-cost-dump.
        (ARM Options): Likewise, plus -mflip-thumb.

2017-12-17  Martin Sebor  <msebor@redhat.com>

        PR bootstrap/83446
        * gimple-ssa-warn-restrict.c
        (builtin_memref::offset_out_of_bounds): Correct the handling of
        anti-ranges.

2017-12-17  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (ARC Options): Add missing -mlra entry.

2017-12-17  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.c (pa_som_asm_init_sections): Fix comment.

2017-12-17  Markus Trippelsdorf  <markus@trippelsdorf.de>

        * x86-tune-costs.h (skylake_cost, core_cost): Decrease r64 multiply
        latencies.

2017-12-16  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Fix some typos.

2017-12-16  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/78918
        * Makefile.in (OBJS): Add gimple-ssa-warn-restrict.o.
        * builtins.c (check_sizes): Rename...
        (check_access): ...to this.  Rename function arguments for clarity.
        (check_memop_sizes): Adjust names.
        (expand_builtin_memchr, expand_builtin_memcpy): Same.
        (expand_builtin_memmove, expand_builtin_mempcpy): Same.
        (expand_builtin_strcat, expand_builtin_stpncpy): Same.
        (check_strncat_sizes, expand_builtin_strncat): Same.
        (expand_builtin_strncpy, expand_builtin_memset): Same.
        (expand_builtin_bzero, expand_builtin_memcmp): Same.
        (expand_builtin_memory_chk, maybe_emit_chk_warning): Same.
        (maybe_emit_sprintf_chk_warning): Same.
        (expand_builtin_strcpy): Adjust.
        (expand_builtin_stpcpy): Same.
        (expand_builtin_with_bounds): Detect out-of-bounds accesses
        in pointer-checking forms of memcpy, memmove, and mempcpy.
        (gcall_to_tree_minimal, max_object_size): Define new functions.
        * builtins.h (max_object_size): Declare.
        * calls.c (alloc_max_size): Call max_object_size instead of
        hardcoding ssizetype limit.
        (get_size_range): Handle new argument.
        * calls.h (get_size_range): Add a new argument.
        * cfgexpand.c (expand_call_stmt): Propagate no-warning bit.
        * doc/invoke.texi (-Wrestrict): Adjust, add example.
        * gimple-fold.c (gimple_fold_builtin_memory_op): Detect overlapping
        operations.
        (gimple_fold_builtin_memory_chk): Same.
        (gimple_fold_builtin_stxcpy_chk): New function.
        * gimple-ssa-warn-restrict.c: New source.
        * gimple-ssa-warn-restrict.h: New header.
        * gimple.c (gimple_build_call_from_tree): Propagate location.
        * passes.def (pass_warn_restrict): Add new pass.
        * tree-pass.h (make_pass_warn_restrict): Declare.
        * tree-ssa-strlen.c (handle_builtin_strcpy): Detect overlapping
        operations.
        (handle_builtin_strcat): Same.
        (strlen_optimize_stmt): Rename...
        (strlen_check_and_optimize_stmt): ...to this.  Handle strncat,
        stpncpy, strncpy, and their checking forms.

2017-12-16  Jan Hubicka  <hubicka@ucw.cz>

        PR rtl-optimization/82849
        * modulo-sched.c (sms_schedule): Use get_estimated_loop_iterations_int
        and get_max_loop_iterations_int.

2017-12-16  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * machmode.h (mode_for_size, int_mode_for_size, float_mode_for_size)
        (smallest_mode_for_size, smallest_int_mode_for_size): Take the mode
        size as a poly_uint64.
        (mode_for_vector, mode_for_int_vector): Take the number of vector
        elements as a poly_uint64.
        * stor-layout.c (mode_for_size, smallest_mode_for_size): Take the mode
        size as a poly_uint64.
        (mode_for_vector, mode_for_int_vector): Take the number of vector
        elements as a poly_uint64.

2017-12-16  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * machmode.h (MACRO_MODE): New macro.
        * addresses.h (base_reg_class, ok_for_base_p_1): Use it.
        * targhooks.c (default_libcall_value, default_secondary_reload)
        (default_memory_move_cost, default_register_move_cost)
        (default_class_max_nregs): Likewise.

2017-12-16  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/sourcebuild.texi: Document IN_TARGET_CODE.
        * genattrtab.c (write_header): Define IN_TARGET_CODE to 1 in the
        target C file.
        * genautomata.c (main): Likewise.
        * genconditions.c (write_header): Likewise.
        * genemit.c (main): Likewise.
        * genextract.c (print_header): Likewise.
        * genopinit.c (main): Likewise.
        * genoutput.c (output_prologue): Likewise.
        * genpeep.c (main): Likewise.
        * genpreds.c (write_insn_preds_c): Likewise.
        * genrecog.c (writer_header): Likewise.
        * config/aarch64/aarch64-builtins.c (IN_TARGET_CODE): Define.
        * config/aarch64/aarch64-c.c (IN_TARGET_CODE): Likewise.
        * config/aarch64/aarch64.c (IN_TARGET_CODE): Likewise.
        * config/aarch64/cortex-a57-fma-steering.c (IN_TARGET_CODE): Likewise.
        * config/aarch64/driver-aarch64.c (IN_TARGET_CODE): Likewise.
        * config/alpha/alpha.c (IN_TARGET_CODE): Likewise.
        * config/alpha/driver-alpha.c (IN_TARGET_CODE): Likewise.
        * config/arc/arc-c.c (IN_TARGET_CODE): Likewise.
        * config/arc/arc.c (IN_TARGET_CODE): Likewise.
        * config/arc/driver-arc.c (IN_TARGET_CODE): Likewise.
        * config/arm/aarch-common.c (IN_TARGET_CODE): Likewise.
        * config/arm/arm-builtins.c (IN_TARGET_CODE): Likewise.
        * config/arm/arm-c.c (IN_TARGET_CODE): Likewise.
        * config/arm/arm.c (IN_TARGET_CODE): Likewise.
        * config/arm/driver-arm.c (IN_TARGET_CODE): Likewise.
        * config/avr/avr-c.c (IN_TARGET_CODE): Likewise.
        * config/avr/avr-devices.c (IN_TARGET_CODE): Likewise.
        * config/avr/avr-log.c (IN_TARGET_CODE): Likewise.
        * config/avr/avr.c (IN_TARGET_CODE): Likewise.
        * config/avr/driver-avr.c (IN_TARGET_CODE): Likewise.
        * config/avr/gen-avr-mmcu-specs.c (IN_TARGET_CODE): Likewise.
        * config/bfin/bfin.c (IN_TARGET_CODE): Likewise.
        * config/c6x/c6x.c (IN_TARGET_CODE): Likewise.
        * config/cr16/cr16.c (IN_TARGET_CODE): Likewise.
        * config/cris/cris.c (IN_TARGET_CODE): Likewise.
        * config/darwin.c (IN_TARGET_CODE): Likewise.
        * config/epiphany/epiphany.c (IN_TARGET_CODE): Likewise.
        * config/epiphany/mode-switch-use.c (IN_TARGET_CODE): Likewise.
        * config/epiphany/resolve-sw-modes.c (IN_TARGET_CODE): Likewise.
        * config/fr30/fr30.c (IN_TARGET_CODE): Likewise.
        * config/frv/frv.c (IN_TARGET_CODE): Likewise.
        * config/ft32/ft32.c (IN_TARGET_CODE): Likewise.
        * config/h8300/h8300.c (IN_TARGET_CODE): Likewise.
        * config/i386/djgpp.c (IN_TARGET_CODE): Likewise.
        * config/i386/driver-i386.c (IN_TARGET_CODE): Likewise.
        * config/i386/driver-mingw32.c (IN_TARGET_CODE): Likewise.
        * config/i386/host-cygwin.c (IN_TARGET_CODE): Likewise.
        * config/i386/host-i386-darwin.c (IN_TARGET_CODE): Likewise.
        * config/i386/host-mingw32.c (IN_TARGET_CODE): Likewise.
        * config/i386/i386-c.c (IN_TARGET_CODE): Likewise.
        * config/i386/i386.c (IN_TARGET_CODE): Likewise.
        * config/i386/intelmic-mkoffload.c (IN_TARGET_CODE): Likewise.
        * config/i386/msformat-c.c (IN_TARGET_CODE): Likewise.
        * config/i386/winnt-cxx.c (IN_TARGET_CODE): Likewise.
        * config/i386/winnt-stubs.c (IN_TARGET_CODE): Likewise.
        * config/i386/winnt.c (IN_TARGET_CODE): Likewise.
        * config/i386/x86-tune-sched-atom.c (IN_TARGET_CODE): Likewise.
        * config/i386/x86-tune-sched-bd.c (IN_TARGET_CODE): Likewise.
        * config/i386/x86-tune-sched-core.c (IN_TARGET_CODE): Likewise.
        * config/i386/x86-tune-sched.c (IN_TARGET_CODE): Likewise.
        * config/ia64/ia64-c.c (IN_TARGET_CODE): Likewise.
        * config/ia64/ia64.c (IN_TARGET_CODE): Likewise.
        * config/iq2000/iq2000.c (IN_TARGET_CODE): Likewise.
        * config/lm32/lm32.c (IN_TARGET_CODE): Likewise.
        * config/m32c/m32c-pragma.c (IN_TARGET_CODE): Likewise.
        * config/m32c/m32c.c (IN_TARGET_CODE): Likewise.
        * config/m32r/m32r.c (IN_TARGET_CODE): Likewise.
        * config/m68k/m68k.c (IN_TARGET_CODE): Likewise.
        * config/mcore/mcore.c (IN_TARGET_CODE): Likewise.
        * config/microblaze/microblaze-c.c (IN_TARGET_CODE): Likewise.
        * config/microblaze/microblaze.c (IN_TARGET_CODE): Likewise.
        * config/mips/driver-native.c (IN_TARGET_CODE): Likewise.
        * config/mips/frame-header-opt.c (IN_TARGET_CODE): Likewise.
        * config/mips/mips.c (IN_TARGET_CODE): Likewise.
        * config/mmix/mmix.c (IN_TARGET_CODE): Likewise.
        * config/mn10300/mn10300.c (IN_TARGET_CODE): Likewise.
        * config/moxie/moxie.c (IN_TARGET_CODE): Likewise.
        * config/msp430/driver-msp430.c (IN_TARGET_CODE): Likewise.
        * config/msp430/msp430-c.c (IN_TARGET_CODE): Likewise.
        * config/msp430/msp430.c (IN_TARGET_CODE): Likewise.
        * config/nds32/nds32-cost.c (IN_TARGET_CODE): Likewise.
        * config/nds32/nds32-fp-as-gp.c (IN_TARGET_CODE): Likewise.
        * config/nds32/nds32-intrinsic.c (IN_TARGET_CODE): Likewise.
        * config/nds32/nds32-isr.c (IN_TARGET_CODE): Likewise.
        * config/nds32/nds32-md-auxiliary.c (IN_TARGET_CODE): Likewise.
        * config/nds32/nds32-memory-manipulation.c (IN_TARGET_CODE): Likewise.
        * config/nds32/nds32-pipelines-auxiliary.c (IN_TARGET_CODE): Likewise.
        * config/nds32/nds32-predicates.c (IN_TARGET_CODE): Likewise.
        * config/nds32/nds32.c (IN_TARGET_CODE): Likewise.
        * config/nios2/nios2.c (IN_TARGET_CODE): Likewise.
        * config/nvptx/mkoffload.c (IN_TARGET_CODE): Likewise.
        * config/nvptx/nvptx.c (IN_TARGET_CODE): Likewise.
        * config/pa/pa.c (IN_TARGET_CODE): Likewise.
        * config/pdp11/pdp11.c (IN_TARGET_CODE): Likewise.
        * config/powerpcspe/driver-powerpcspe.c (IN_TARGET_CODE): Likewise.
        * config/powerpcspe/host-darwin.c (IN_TARGET_CODE): Likewise.
        * config/powerpcspe/host-ppc64-darwin.c (IN_TARGET_CODE): Likewise.
        * config/powerpcspe/powerpcspe-c.c (IN_TARGET_CODE): Likewise.
        * config/powerpcspe/powerpcspe-linux.c (IN_TARGET_CODE): Likewise.
        * config/powerpcspe/powerpcspe.c (IN_TARGET_CODE): Likewise.
        * config/riscv/riscv-builtins.c (IN_TARGET_CODE): Likewise.
        * config/riscv/riscv-c.c (IN_TARGET_CODE): Likewise.
        * config/riscv/riscv.c (IN_TARGET_CODE): Likewise.
        * config/rl78/rl78-c.c (IN_TARGET_CODE): Likewise.
        * config/rl78/rl78.c (IN_TARGET_CODE): Likewise.
        * config/rs6000/driver-rs6000.c (IN_TARGET_CODE): Likewise.
        * config/rs6000/host-darwin.c (IN_TARGET_CODE): Likewise.
        * config/rs6000/host-ppc64-darwin.c (IN_TARGET_CODE): Likewise.
        * config/rs6000/rs6000-c.c (IN_TARGET_CODE): Likewise.
        * config/rs6000/rs6000-linux.c (IN_TARGET_CODE): Likewise.
        * config/rs6000/rs6000-p8swap.c (IN_TARGET_CODE): Likewise.
        * config/rs6000/rs6000-string.c (IN_TARGET_CODE): Likewise.
        * config/rs6000/rs6000.c (IN_TARGET_CODE): Likewise.
        * config/rx/rx.c (IN_TARGET_CODE): Likewise.
        * config/s390/driver-native.c (IN_TARGET_CODE): Likewise.
        * config/s390/s390-c.c (IN_TARGET_CODE): Likewise.
        * config/s390/s390.c (IN_TARGET_CODE): Likewise.
        * config/sh/sh-c.c (IN_TARGET_CODE): Likewise.
        * config/sh/sh-mem.cc (IN_TARGET_CODE): Likewise.
        * config/sh/sh.c (IN_TARGET_CODE): Likewise.
        * config/sh/sh_optimize_sett_clrt.cc (IN_TARGET_CODE): Likewise.
        * config/sh/sh_treg_combine.cc (IN_TARGET_CODE): Likewise.
        * config/sparc/driver-sparc.c (IN_TARGET_CODE): Likewise.
        * config/sparc/sparc-c.c (IN_TARGET_CODE): Likewise.
        * config/sparc/sparc.c (IN_TARGET_CODE): Likewise.
        * config/spu/spu-c.c (IN_TARGET_CODE): Likewise.
        * config/spu/spu.c (IN_TARGET_CODE): Likewise.
        * config/stormy16/stormy16.c (IN_TARGET_CODE): Likewise.
        * config/tilegx/mul-tables.c (IN_TARGET_CODE): Likewise.
        * config/tilegx/tilegx-c.c (IN_TARGET_CODE): Likewise.
        * config/tilegx/tilegx.c (IN_TARGET_CODE): Likewise.
        * config/tilepro/mul-tables.c (IN_TARGET_CODE): Likewise.
        * config/tilepro/tilepro-c.c (IN_TARGET_CODE): Likewise.
        * config/tilepro/tilepro.c (IN_TARGET_CODE): Likewise.
        * config/v850/v850-c.c (IN_TARGET_CODE): Likewise.
        * config/v850/v850.c (IN_TARGET_CODE): Likewise.
        * config/vax/vax.c (IN_TARGET_CODE): Likewise.
        * config/visium/visium.c (IN_TARGET_CODE): Likewise.
        * config/vms/vms-c.c (IN_TARGET_CODE): Likewise.
        * config/vms/vms-f.c (IN_TARGET_CODE): Likewise.
        * config/vms/vms.c (IN_TARGET_CODE): Likewise.
        * config/xtensa/xtensa.c (IN_TARGET_CODE): Likewise.

2017-12-16  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-ssa-sccvn.c (vn_reference_lookup_3): Avoid repeated
        checks for MEM_REF.

2017-12-16  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/generic.texi (VEC_SERIES_EXPR): Document.
        * doc/md.texi (vec_series@var{m}): Document.
        * tree.def (VEC_SERIES_EXPR): New tree code.
        * tree.h (build_vec_series): Declare.
        * tree.c (build_vec_series): New function.
        * cfgexpand.c (expand_debug_expr): Handle VEC_SERIES_EXPR.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        * gimple-pretty-print.c (dump_binary_rhs): Likewise.
        * tree-inline.c (estimate_operator_cost): Likewise.
        * expr.c (expand_expr_real_2): Likewise.
        * optabs-tree.c (optab_for_tree_code): Likewise.
        * tree-cfg.c (verify_gimple_assign_binary): Likewise.
        * fold-const.c (const_binop): Fold VEC_SERIES_EXPRs of constants.
        * expmed.c (make_tree): Handle VEC_SERIES.
        * optabs.def (vec_series_optab): New optab.
        * optabs.h (expand_vec_series_expr): Declare.
        * optabs.c (expand_vec_series_expr): New function.
        * tree-vect-generic.c (expand_vector_operations_1): Check that
        the operands also have vector type.

2017-12-16  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hawyard@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/generic.texi (VEC_DUPLICATE_EXPR): Document.
        (VEC_COND_EXPR): Add missing @tindex.
        * doc/md.texi (vec_duplicate@var{m}): Document.
        * tree.def (VEC_DUPLICATE_EXPR): New tree codes.
        * tree.c (build_vector_from_val): Add stubbed-out handling of
        variable-length vectors, using VEC_DUPLICATE_EXPR.
        (uniform_vector_p): Handle VEC_DUPLICATE_EXPR.
        * cfgexpand.c (expand_debug_expr): Likewise.
        * tree-cfg.c (verify_gimple_assign_unary): Likewise.
        * tree-inline.c (estimate_operator_cost): Likewise.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        * tree-vect-generic.c (ssa_uniform_vector_p): Likewise.
        * fold-const.c (const_unop): Fold VEC_DUPLICATE_EXPRs of a constant.
        (test_vec_duplicate_folding): New function.
        (fold_const_c_tests): Call it.
        * optabs.def (vec_duplicate_optab): New optab.
        * optabs-tree.c (optab_for_tree_code): Handle VEC_DUPLICATE_EXPR.
        * optabs.h (expand_vector_broadcast): Declare.
        * optabs.c (expand_vector_broadcast): Make non-static.  Try using
        vec_duplicate_optab.
        * expr.c (store_constructor): Try using vec_duplicate_optab for
        uniform vectors.
        (expand_expr_real_2): Handle VEC_DUPLICATE_EXPR.

2017-12-15  Markus Trippelsdorf  <markus@trippelsdorf.de>

        PR target/83358
        * config/i386/x86-tune-costs.h (skylake_cost, core_cost): Increase
        div/mod latencies a bit.

2017-12-15  Jeff Law  <law@redhat.com>

        PR tree-optimization/36550
        * tree-ssa-threadupdate.c (count_stmts_and_phis_in_block): New.
        (mark_threaded_blocks): Rewrite code to avoid block copying when
        optimizing for size.  Don't pessimize blocks which will be
        copied, but all the statements will be dead.

2017-12-15  Alexandre Oliva  <aoliva@redhat.com>

        PR tree-optimization/81165
        * tree-ssa-threadupdate.c (uses_in_bb): New.
        (estimate_threading_killed_stmts): New.
        * tree-ssa-threadupdate.h (estimate_threading_killed_stmts): Prototype.
        * tree-ssa-threadedge.c
        (record_temporary_equivalences_from_stmts_at_dest): Expand limit
        when its hit.

2017-12-15  Jeff Law  <law@redhat.com>

        PR tree-optimization/83410
        * tree-ssa-threadupdate.c (thread_block_1): Avoid certain jump
        threads when parallelizing loops.

2017-12-15  Jakub Jelinek  <jakub@redhat.com>

        * tree-core.h (struct attribute_spec): Swap affects_type_identity and
        handler fields.
        * config/alpha/alpha.c (vms_attribute_table): Swap
        affects_type_identity and handler fields, adjust comments.
        * config/mips/mips.c (mips_attribute_table): Likewise.
        * config/visium/visium.c (visium_attribute_table): Likewise.
        * config/epiphany/epiphany.c (epiphany_attribute_table): Likewise.
        * config/microblaze/microblaze.c (microblaze_attribute_table):
        Likewise.
        * config/spu/spu.c (spu_attribute_table): Likewise.
        * config/mcore/mcore.c (mcore_attribute_table): Likewise.
        * config/arc/arc.c (arc_attribute_table): Likewise.
        * config/m68k/m68k.c (m68k_attribute_table): Likewise.
        * config/v850/v850.c (v850_handle_interrupt_attribute,
        v850_handle_data_area_attribute): Formatting fixes.
        (v850_attribute_table): Swap affects_type_identity and handler
        fields, adjust comments.
        * config/m32r/m32r.c (m32r_attribute_table): Likewise.
        * config/arm/arm.c (arm_attribute_table): Likewise.
        * config/avr/avr.c (avr_attribute_table): Likewise.
        * config/s390/s390.c (s390_attribute_table): Likewise.
        * config/sh/sh.c (sh_attribute_table): Likewise.
        * config/i386/i386.c (ix86_handle_cconv_attribute,
        ix86_handle_callee_pop_aggregate_return): Formatting fixes.
        (ix86_attribute_table): Swap affects_type_identity and handler
        fields, adjust comments.
        * config/i386/cygming.h (SUBTARGET_ATTRIBUTE_TABLE): Likewise.
        * config/sparc/sparc.c (sparc_attribute_table): Likewise.
        * config/m32c/m32c.c (m32c_attribute_table): Likewise.
        * config/sol2.h (SOLARIS_ATTRIBUTE_TABLE): Likewise.
        * config/ia64/ia64.c (ia64_attribute_table): Likewise.
        * config/msp430/msp430.c (msp430_attribute_table): Likewise.
        * config/rx/rx.c (rx_attribute_table): Likewise.
        * config/cr16/cr16.c (cr16_attribute_table): Likewise.
        * config/h8300/h8300.c (h8300_attribute_table): Likewise.
        * config/nvptx/nvptx.c (nvptx_attribute_table): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_attribute_table): Likewise.
        * config/darwin.h (SUBTARGET_ATTRIBUTE_TABLE): Likewise.
        * config/stormy16/stormy16.c (xstormy16_attribute_table): Likewise.
        * config/bfin/bfin.c (bfin_attribute_table): Likewise.
        * config/rs6000/rs6000.c (rs6000_attribute_table): Likewise.
        * config/rl78/rl78.c (rl78_attribute_table): Likewise.
        * config/nds32/nds32.c (nds32_attribute_table): Likewise.
        * doc/plugins.texi (user_attr): Likewise.  Add NULL for
        exclude.
        * attribs.c (empty_attribute_table): Swap affects_type_identity and
        handler fields.
        (register_scoped_attributes, decl_attributes): Formatting fixes.

        PR tree-optimization/83269
        * fold-const.c (fold_binary_loc): Perform (-A) - B -> (-B) - A
        subtraction in arg0's type if type is signed and arg0 is unsigned.
        Formatting fix.

        PR sanitizer/81281
        * match.pd ((T)(P + A) - (T)P -> (T) A): Use @@0 instead of @0 and
        convert? on @0 instead of convert.  Check type of @1, not @0.
        ((T)P - (T)(P + A) -> -(T) A): Use @@0 instead of @0 and
        convert? on @0 instead of convert.  Check type of @1, not @0.
        ((T)(P + A) - (T)(P + B) -> (T)A - (T)B): Use @@0 instead of @0,
        only optimize if either both @1 and @2 types are narrower
        precision, or both are wider or equal precision, and in the former
        case only if both have undefined overflow.

2017-12-15  Richard Biener  <rguenther@suse.de>

        PR lto/83388
        * internal-fn.def (IFN_NOP): Add.
        * internal-fn.c (expand_NOP): Do nothing.
        * lto-streamer-in.c (input_function): Instead of removing
        sanitizer calls replace them with IFN_NOP calls.

2017-12-15  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * dse.c (store_info, read_info_type): Replace begin and end with
        offset and width.
        (print_range): New function.
        (set_all_positions_unneeded, any_positions_needed_p)
        (check_mem_read_rtx, scan_stores, scan_reads, dse_step5): Update
        accordingly.
        (record_store): Likewise.  Optimize the case in which all positions
        are unneeded.
        (get_stored_val): Replace read_begin and read_end with read_offset
        and read_width.
        (replace_read): Update call accordingly.

2017-12-15  Bin Cheng  <bin.cheng@arm.com>

        * gimple-loop-interchange.cc (STMT_COST_RATIO): New macro.
        (loop_cand::m_num_stmts, loop_cand::m_const_init_reduc): New members.
        (loop_cand::loop_cand): Initialize above members.
        (loop_cand::supported_operations): Delete.
        (loop_cand::can_interchange_p): Inline above function.
        (loop_cand::classify_simple_reduction): Record number of constant
        initialized simple reductions.
        (should_interchange_loops): New parameters.  Check stmt cost of loops
        to be interchange.
        (tree_loop_interchange::interchange): Prepare stmt cost of outer loop.
        Update call to should_interchange_loops.
        (should_interchange_loop_nest): Update call to
        should_interchange_loops.

2017-12-15  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/66488
        * ggc-page.c (HOST_BITS_PER_PTR): Do not define here...
        * hwint.h (HOST_BITS_PER_PTR): ...but here instead.
        * config/i386/xm-mingw32.h (HOST_BITS_PER_PTR): Delete.

2017-12-15  Julia Koval  <julia.koval@intel.com>

        * config/i386/i386-builtin.def (__builtin_ia32_vaesenclast_v16qi,
        __builtin_ia32_vaesenclast_v32qi, __builtin_ia32_vaesenclast_v64qi):
        New.
        * config/i386/sse.md (vaesenclast_<mode>): New pattern.
        * config/i386/vaesintrin.h (_mm256_aesenclast_epi128,
        _mm512_aesenclast_epi128, _mm_aesenclast_epi128): New intrinsics.

2017-12-15  Julia Koval  <julia.koval@intel.com>

        * config/i386/i386-builtin.def (__builtin_ia32_vaesenc_v16qi,
        __builtin_ia32_vaesenc_v32qi, __builtin_ia32_vaesenc_v64qi): New.
        * config/i386/sse.md (vaesenc_<mode>): New pattern.
        * config/i386/vaesintrin.h (_mm256_aesenc_epi128, _mm512_aesenc_epi128,
        _mm_aesenc_epi128): New intrinsics.

2017-12-15  Julia Koval  <julia.koval@intel.com>

        * config/i386/i386-builtin.def (__builtin_ia32_vaesdeclast_v16qi,
        __builtin_ia32_vaesdeclast_v32qi, __builtin_ia32_vaesdeclast_v64qi):
        New.
        * config/i386/sse.md (vaesdeclast_<mode>): New pattern.
        * config/i386/vaesintrin.h (_mm256_aesdeclast_epi128,
        _mm512_aesdeclast_epi128, _mm_aesdeclast_epi128): New intrinsics.

2017-12-14  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * gimple-ssa-strength-reduction.c (analyze_increments):
        Distinguish replacement costs for constant strides from those for
        unknown strides.

2017-12-14  Jakub Jelinek  <jakub@redhat.com>

        * var-tracking.c (variable_tracking_main_1): Formatting fix.

2017-12-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/invoke.texi: Document -Wcast-function-type.
        * recog.h (stored_funcptr): Change signature.
        * tree-dump.c (dump_node): Avoid warning.
        * typed-splay-tree.h (typed_splay_tree): Avoid warning.

2017-12-14  Qing Zhao  <qing.zhao@oracle.com>

        PR middle_end/79538
        * gimple-fold.c (get_range_strlen): Add the handling of non-member 
        array.

2017-12-14  David Malcolm  <dmalcolm@redhat.com>

        PR tree-optimization/83312
        * domwalk.h (dom_walker::dom_walker): Fix typo in comment.
        * tree-cfg.c (find_taken_edge): Update to handle NULL_TREE for
        "val" param, and to cope with arbitrary basic blocks.
        (find_taken_edge_cond_expr): Add "cond_stmt" param and use it to
        handle NULL_TREE for "val", dropping "bb" param.
        (find_taken_edge_switch_expr): Make "switch_stmt" param const and
        drop "bb" param.  Handle NULL_TREE for "val".
        (find_case_label_for_value): Make "switch_stmt" param const.
        * tree-vrp.c (class check_array_bounds_dom_walker): New subclass
        of dom_walker.
        (vrp_prop::check_all_array_refs): Reimplement as...
        (check_array_bounds_dom_walker::before_dom_children): ...this new
        vfunc.  Replace linear search through BB block list, excluding
        those with non-executable in-edges via dominator walk.

2017-12-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.opt (mverbose-cost-dump): New option.
        * config/arm/arm.c (arm_rtx_costs): Use it.

2017-12-14  Andreas Schwab  <schwab@linux-m68k.org>

        PR bootstrap/83396
        * reload1.c (emit_input_reload_insns): Skip debug markers.

2017-12-14  Alexandre Oliva  <aoliva@redhat.com>

        * config/i386/i386.c (rest_of_insert_endbranch): Use call loc
        for its nop_endbr.

        PR bootstrap/83396
        * config/arc/arc.c (hwloop_optimize): Skip debug insns.
        * config/sh/sh-protos.h (sh_find_set_of_reg): Adjust.
        * config/sh/sh.c: Skip debug insns besides notes.
        * config/sh/sh.md: Likewise.
        * config/sh/sh_treg_combine.cc: Likewise.
        * config/sh/sync.md: Likewise.

2017-12-14  Tom de Vries  <tom@codesourcery.com>

        * doc/sourcebuild.texi (Effective-Target Keywords, Other attributes):
        Add item for weak_undefined.

2017-12-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/67842
        * sese.h (bb_in_region): Remove #if 0'ed code.

2017-12-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83326
        * tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Add
        may_be_zero parameter and handle it by not marking the first
        peeled copy as not exiting the loop.
        (try_peel_loop): Likewise.
        (canonicalize_loop_induction_variables): Use number_of_iterations_exit
        to handle the case of constant or zero iterations and perform
        loop header copying on-the-fly.

2017-12-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83418
        * vr-values.c (vr_values::extract_range_for_var_from_comparison_expr):
        Instead of asserting we don't get unfolded comparisons deal with them.

2017-12-14  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/83396
        * var-tracking.c (vt_initialize): Ignore non-DEBUG_INSNs outside of
        basic blocks.  Assert debug bind insns don't appear outside of bbs,
        don't reset them.  Assert insns without BLOCK_FOR_INSN are outside of
        bb.  Simplify.

        PR tree-optimization/83198
        * gimple-ssa-sprintf.c (format_floating): Set type solely based on
        dir.modifier, regardless of TREE_TYPE (arg).  Assume non-REAL_CST
        value if arg is a REAL_CST with incompatible type.

2017-12-14  Sudakshina Das  <sudi.das@arm.com>
            Bin Cheng  <bin.cheng@arm.com>

        PR target/81228
        * config/aarch64/aarch64.c (aarch64_select_cc_mode): Move LTGT
        to CCFPEmode.
        * config/aarch64/aarch64-simd.md (vec_cmp<mode><v_int_equiv>): Add
        LTGT.

2017-12-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-cores.def (cortex-a55, cortex-a75,
        cortex-a75.cortex-a55): Specify AARCH64_FL_F16 in the arch features.

2017-12-14  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * poly-int.h: New file.
        * poly-int-types.h: Likewise.
        * coretypes.h: Include them.
        (POLY_INT_CONVERSION): Define.
        * target.def (estimated_poly_value): New hook.
        * doc/tm.texi.in (TARGET_ESTIMATED_POLY_VALUE): New hook.
        * doc/tm.texi: Regenerate.
        * doc/poly-int.texi: New file.
        * doc/gccint.texi: Include it.
        * doc/rtl.texi: Describe restrictions on subreg modes.
        * Makefile.in (TEXI_GCCINT_FILES): Add poly-int.texi.
        * genmodes.c (NUM_POLY_INT_COEFFS): Provide a default definition.
        (emit_insn_modes_h): Emit a definition of NUM_POLY_INT_COEFFS.
        * targhooks.h (default_estimated_poly_value): Declare.
        * targhooks.c (default_estimated_poly_value): New function.
        * target.h (estimated_poly_value): Likewise.
        * wide-int.h (WI_UNARY_RESULT): Use wi::binary_traits.
        (wi::unary_traits): Delete.
        (wi::binary_traits::signed_shift_result_type): Define for
        offset_int << HOST_WIDE_INT, etc.
        (generic_wide_int::operator <<=): Define for all types and use
        wi::lshift instead of <<.
        (wi::hwi_with_prec): Add a default constructor.
        (wi::ints_for): New class.
        (operator <<): Define for all wide-int types.
        (operator /): New function.
        (operator %): Likewise.
        * selftest.h (ASSERT_KNOWN_EQ, ASSERT_KNOWN_EQ_AT, ASSERT_MAYBE_NE)
        (ASSERT_MAYBE_NE_AT): New macros.

2017-12-13  Eric Botcazou  <ebotcazou@adacore.com>
            Dominik Vogt  <vogt@linux.vnet.ibm.com>

        PR middle-end/78468
        * emit-rtl.c (init_emit): Remove ??? comment.
        * explow.c (get_dynamic_stack_size): Take known alignment of stack
        pointer + STACK_DYNAMIC_OFFSET into account in lieu of STACK_BOUNDARY.
        * config/sparc/sparc.h (INIT_EXPANDERS): In 32-bit mode, lower the
        alignment of 3 virtual registers to BITS_PER_WORD.

        * config/sparc/sparc.c (sparc_compute_frame_size): Simplify.

2017-12-13  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/ppc-auxv.h (PPC_FEATURE2_HTM_NO_SUSPEND): New define.
        * config/rs6000/rs6000.c (cpu_supports_info): Use it.

2017-12-13  Alexandre Oliva  <aoliva@redhat.com>

        PR bootstrap/83396
        * reload1.c (eliminate_regs_in_insn): Skip debug markers.

2017-12-13  Jakub Jelinek  <jakub@redhat.com>

        * tree-cfg.c (verify_gimple_in_cfg): Verify no non-label stmts
        with the exception of debug begin stmt markers appear before
        labels.

        PR bootstrap/83396
        * final.c (rest_of_handle_final): Call variable_tracking_main only
        if !flag_var_tracking.

2017-12-13  Alexandre Oliva  <aoliva@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/83396
        PR debug/83391
        * tree-cfgcleanup.c (remove_forwarder_block): Keep after
        labels debug stmts that can only appear after labels.

2017-12-13  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/82398
        * sel-sched.c (sel_rank_for_schedule): Fix check for zero
        EXPR_USEFULNESS in priority comparison.

2017-12-13  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/83393
        * combine.c (move_deaths): If reg_stat points to a too new insn in
        last_death, do not use it: find the proper insn instead.

2017-12-12  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        PR target/82190
        * config/rs6000/rs6000-string.c (expand_block_compare,
        expand_strn_compare): Fix set_mem_size() calls.

2017-12-12  Jeff Law  <law@redhat.com>

        PR tree-optimization/83298
        PR tree-optimization/83362
        PR tree-optimization/83383
        * gimple-ssa-evrp-analyze.h (class evrp_range_analyzer): Make
        push_value_range a public interface.  Add new argument to
        record_ranges_from_stmt.
        * gimple-ssa-evrp-analyze.c
        (evrp_range_analyzer::record_ranges_from_stmt): Add new argument.
        Update comments.  Handle recording temporary equivalences.
        * tree-ssa-dom.c (dom_opt_opt_walker::before_dom_children): Add
        new argument to call to evrp_range_analyzer::record_ranges_from_stmt.
        * gimple-ssa-evrp.c (evrp_dom_walker::before_dom_children): Likewise.
        * tree-ssa-threadedge.c: Include alloc-pool.h, vr-values.h and
        gimple-ssa-evrp-analyze.h.
        (record_temporary_equivalences_from_phis): Add new argument.  When
        the PHI arg is an SSA_NAME, set the result's range to the range
        of the PHI arg.
        (record_temporary_equivalences_from_stmts_at_dest): Record ranges
        from statements too.
        (thread_through_normal_block): Accept new argument, evrp_range_analyzer.
        Pass it down to children as needed.
        (thread_outgoing_edges): Likewise.
        (thread_across_edge): Likewise.   Push/pop range state as needed.
        * tree-ssa-threadedge.h (thread_outgoing_edges): Update prototype.

2017-12-12  Julia Koval  <julia.koval@intel.com>

        * config/i386/i386.c (PTA_SKYLAKE_AVX512): Add PTA_CLWB.
        (PTA_CANNONLAKE): Remove PTA_CLWB.

2017-12-12  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/83332
        * config/rs6000/vector.md (vcondv2dfv2di): New define_expand.
        (vcondv2div2df): Likewise.
        (vconduv2dfv2di): Likewise.

2017-12-12  Jakub Jelinek  <jakub@redhat.com>

        * builtins.def (BUILT_IN_NEXTAFTER, BUILT_IN_NEXTAFTERF,
        BUILT_IN_NEXTAFTERL, BUILT_IN_NEXTTOWARD, BUILT_IN_NEXTTOWARDF,
        BUILT_IN_NEXTTOWARDL): Use ATTR_MATHFN_ERRNO instead of
        ATTR_MATHFN_FPROUNDING_ERRNO.

2017-12-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83385
        * graphite-scop-detection.c (get_order, order): Remove.
        (bb_to_rpo): New global.
        (cmp_pbbs): Adjust.
        (build_scops): Sort pbbs in RPO order.

2017-12-12  James Greenhalgh  <james.greenhalgh@arm.com>

        * combine.c (simplify_set): Do not transform subregs to zero_extends
        if the destination mode is a vector mode.

2017-12-12  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/83359
        * tree-cfg.h (fold_loop_internal_call): Declare.
        * tree-vectorizer.c (fold_loop_internal_call): Moved to ...
        * tree-cfg.c (fold_loop_internal_call): ... here.  No longer static.
        (find_loop_dist_alias): New function.
        (move_sese_region_to_fn): If any dloop->orig_loop_num value is
        updated, also adjust any corresponding LOOP_DIST_ALIAS internal
        calls.

        PR tree-optimization/80631
        * tree-vect-loop.c (get_initial_def_for_reduction): Fix comment typo.
        (vect_create_epilog_for_reduction): Add INDUC_VAL and INDUC_CODE
        arguments, for INTEGER_INDUC_COND_REDUCTION use INDUC_VAL instead of
        hardcoding zero as the value if COND_EXPR is never true.  For
        INTEGER_INDUC_COND_REDUCTION don't emit the final COND_EXPR if
        INDUC_VAL is equal to INITIAL_DEF, and use INDUC_CODE instead of
        hardcoding MAX_EXPR as the reduction operation.
        (is_nonwrapping_integer_induction): Allow negative step.
        (vectorizable_reduction): Compute INDUC_VAL and INDUC_CODE for
        vect_create_epilog_for_reduction, if no value is suitable, don't
        use INTEGER_INDUC_COND_REDUCTION for now.  Formatting fixes.

2017-12-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81889
        * tree-ssa-loop-niter.c (infer_loop_bounds_from_signedness): Use
        range info from the non-wrapping IV instead of just the range
        of the type.

2017-12-12  Julia Koval  <julia.koval@intel.com>

        * config.gcc: Add vaesintrin.h.
        * config/i386/i386-builtin-types.def (V64QI_FTYPE_V64QI_V64QI):
        New type.
        * config/i386/i386-builtin.def (__builtin_ia32_vaesdec_v16qi,
        __builtin_ia32_vaesdec_v32qi, __builtin_ia32_vaesdec_v64qi):
        New builtins.
        * config/i386/i386.c (ix86_expand_args_builtin): Handle new type.
        * config/i386/immintrin.h: Include vaesintrin.h.
        * config/i386/sse.md (vaesdec_<mode>): New pattern.
        * config/i386/vaesintrin.h (_mm256_aesdec_epi128, _mm512_aesdec_epi128,
        _mm_aesdec_epi128): New intrinsics.

2017-12-12  Julia Koval  <julia.koval@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_VAES_SET,
        OPTION_MASK_ISA_VAES_UNSET): New.
        (ix86_handle_option): Handle -mvaes.
        * config/i386/cpuid.h: Define bit_VAES.
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mvaes.
        * config/i386/i386-c.c (__VAES__): New.
        * config/i386/i386.c (ix86_target_string): Add -mvaes.
        (ix86_valid_target_attribute_inner_p): Ditto.
        * config/i386/i386.h (TARGET_VAES, TARGET_VAES_P): New.
        * config/i386/i386.opt: Add -mvaes.
        * doc/invoke.texi: Ditto.

2017-12-12  Alexandre Oliva  <aoliva@redhat.com>

        * debug.h (gcc_debug_hooks): Add inline_entry.
        * dbxout.c (dbx_debug_hooks, xcoff_debug_hooks): Likewise.
        * debug.c (do_nothing_debug_hooks): Likewise.
        * vmsdbgout.c (vmsdbg_debug_hooks): Likewise.
        * dwarf2out.c (dwarf2_debug_hooks): Likewise.
        (dwarf2_lineno_debug_hooks): Likewise.

        * common.opt (gstatement-frontiers): New, setting
        debug_nonbind_markers_p.
        * rtl.h (MAY_HAVE_DEBUG_MARKER_INSNS): Activate.
        * toplev.c (process_options): Autodetect value for debug statement
        frontiers option.
        * tree.h (MAY_HAVE_DEBUG_MARKER_STMTS): Activate.
        * doc/invoke.texi (gstatement-frontiers, gno-statement-frontiers): New.

        * cfgexpand.c (expand_gimple_basic_block): Handle begin stmt
        markers.  Integrate source bind into debug stmt expand loop.
        (pass_expand::execute): Check debug marker limit.  Avoid deep
        TER and expand debug locations for debug bind insns only.
        * cse.c (insn_live_p): Keep nonbind markers and debug bindings
        followed by them.
        * df-scan.c (df_insn_delete): Accept out-of-block debug insn.
        * final.c (reemit_insn_block_notes): Take current block from
        nonbind markers.  Declare note where it's first set.
        (final_scan_insn): Handle begin stmt notes.  Emit is_stmt according to
        begin stmt markers if enabled.
        (notice_source_line): Handle nonbind markers.  Fail if their
        location is unknown or that of builtins.
        (rest_of_handle_final): Convert begin stmt markers to notes if
        var-tracking didn't run.
        (rest_of_clean_state): Skip begin stmt markers.
        * gimple-pretty-print.c (dump_gimple_debug): Handle begin stmt
        markers.
        * function.c (allocate_struct_function): Set begin_stmt_markers.
        * function.h (struct function): Add debug_marker_count counter
        and debug_nonbind_markers flag.
        * gimple-iterator.c (gsi_remove): Adjust debug_marker_count.
        * gimple-low.c (lower_function_body): Adjust
        debug_nonbind_markers.
        (lower_stmt): Drop or skip gimple debug stmts.
        (lower_try_catch): Skip debug stmts.
        * gimple.c (gimple_build_debug_begin_stmt): New.
        (gimple_copy): Increment debug_marker_count if copying one.
        * gimple.h (gimple_build_debug_begin_stmt): Declare.
        * gimplify.c (rexpr_location): New.
        (rexpr_has_location): New.
        (warn_switch_unreachable_r): Handle gimple debug stmts.
        (shortcut_cond_r): Call expr_location.
        (find_goto): New.
        (find_goto_label): New.
        (shortcut_cond_expr): Call expr_has_location, expr_location, and
        find_goto_label.
        (gimplify_cond_expr): Call find_goto_label, expr_has_location, and
        expr_location.
        (gimplify_expr): Handle begin stmt markers.  Reject debug expr decls.
        * langhooks-def.h (LANG_HOOKS_EMITS_BEGIN_STMT): New.  Add to...
        (LANG_HOOKS_INITIALIZER): ... this.
        * langhooks.h (struct lang_hooks): Add emits_begin_stmt.
        * lra-contraints.c (inherit_reload_reg): Tolerate between-blocks
        debug insns.
        (update_ebb_live_info): Skip debug insn markers.
        * lra.c (debug_insn_static_data): Rename to...
        (debug_bind_static_data): ... this.
        (debug_marker_static_data): New.
        (lra_set_insn_recog_data): Select one of the above depending
        on debug insn kind.
        (lra_update_isn_regno_info): Don't assume debug insns have
        freqs.
        (push_insns): Skip debug insns.
        * lto-streamer-in.c (input_function): Drop debug stmts
        depending on active options.  Adjust debug_nonbind_markers.
        * params.def (PARAM_MAX_DEBUG_MARKER_COUNT): New.
        * print-rtl.c (rtx_writer::print_rtx_operand_code_0): Handle
        begin stmt marker notes.
        (print_insn): Likewise.
        * recog.c (extract_insn): Recognize rtl for debug markers.
        * rtl.def (DEBUG_MARKER): New.
        * tree-inline.c: Include params.h.
        (remap_gimple_stmt): Handle nonbind markers.
        (maybe_move_debug_stmts_to_successors): Likewise.
        (copy_debug_stmt): Likewise.
        * tree-iterator.c (append_to_statement_list_1): Append begin stmt
        markers regardless of no side effects.
        (tsi_link_before): Don't update container's side effects when adding
        a begin stmt marker.
        (tsi_link_after): Likewise.
        (expr_first): Skip begin stmt markers.
        (expr_last): Likewise.
        * tree-pretty-print (dump_generic_node): Handle begin stmt markers.
        * tree-ssa-threadedge.c (propagate_threaded_block_debug_info):
        Disregard nonbind markers.
        * tree.c (make_node_stat): Don't set side effects for begin stmt
        markers.
        (build1_stat): Likewise.
        * tree.def (DEBUG_BEGIN_STMT): New.
        * tree.h (GOTO_DESTINATION): Require a GOTO_EXPR.
        * var-tracking.c (delete_debug_insns): Renamed to...
        (delete_vta_debug_insns): ... this.
        (reemit_marker_as_note): New.
        (vt_initialize): Reemit markers.
        (delete_vta_debug_insns): Likewise.
        (vt_debug_insns_local): Reemit or delete markers.
        (variable_tracking_main_1): Likewise.
        * doc/generic.texi (DEBUG_BEGIN_STMT): Document.
        * doc/gimple.texi (gimple_debug_begin_stmt_p): New.
        (gimple_debug_nonbind_marker_p): New.
        (gimple_build_debug_bind): Adjust.
        (gimple_build_debug_begin_stmt): New.
        * doc/invoke.texi (max-debug-marker-count): New param.
        * doc/rtl.texi (debug_implicit_ptr, entry_value): New.
        (debug_parameter_ref, debug_marker): New.
        (NOTE_INSN_BEGIN_STMT): New.
        (DEBUG_INSN): Describe begin stmt markers.

        * cfgbuild.c (find_bb_boundaries): Don't purge dead edges if,
        without debug insns, we wouldn't, but clean up debug insns
        after a control flow insn nevertheless.

        * cfgcleanup.c (delete_unreachable_blocks): Use alternate
        block removal order if MAY_HAVE_DEBUG_BIND_INSNS.
        * cfgexpand.c (label_rtx_for_bb): Skip debug insns.
        * cfgrtl.c (try_redirect_by_replacing_jump): Skip debug insns.
        (rtl_tidy_fallthru_edge): Likewise.
        (rtl_verify_fallthru): Likewise.
        (rtl_verify_bb_layout): Likewise.
        (skip_insns_after_block): Likewise.
        (duplicate_insn_chain): Use DEBUG_BIND_INSN_P.
        * dwarf2out.c: Include print-rtl.h.
        (dwarf2out_next_real_insn): New.
        (dwarf2out_var_location): Call it.  Disregard begin stmt markers.
        Dump debug binds in asm comments.
        * gimple-iterator.c (gimple_find_edge_insert_loc): Skip debug stmts.
        * gimple-iterator.h (gsi_start_bb_nondebug): Remove; adjust
        callers to use gsi_start_nondebug_bb instead.
        (gsi_after_labels): Skip gimple debug stmts.
        (gsi_start_nondebug): New.
        * gimple-loop-interchange.c (find_deps_in_bb_for_stmt): Adjust.
        (proper_loop_form_for_interchange): Adjust.
        * gimple-low.c (gimple_seq_may_fallthru): Take last nondebug stmt.
        * gimple.h (gimple_seq_last_nondebug_stmt): New.
        * gimplify.c (last_stmt_in_scope): Skip debug stmts.
        (collect_fallthrough_labels): Likewise.
        (should_warn_for_implicit_fallthrough): Likewise.
        (warn_implicit_fallthrough_r): Likewise.
        (expand_FALLTHROUGH_r): Likewise.
        * graphite-isl-ast-to-gimple.c (gsi_insert_earliest): Adjust.
        (graphite_copy_stmts_from_block): Skip nonbind markers.
        * haifa-sched.c (sched_extend_bb): Skip debug insns.
        * ipa-icf-gimple.c (func_checker::compare_bb): Adjust.
        * jump.c (clean_barriers): Skip debug insns.
        * omp-expand.c (expand_parallel_call): Skip debug insns.
        (expand_task_call): Likewise.
        (remove_exit_barrier): Likewise.
        (expand_omp_taskreg): Likewise.
        (expand_omp_for_init_counts): Likewise.
        (expand_omp_for_generic): Likewise.
        (expand_omp_for_static_nochunk): Likewise.
        (expand_omp_for_static_chunk): Likewise.
        (expand_omp_simd): Likewise.
        (expand_omp_taskloop_for_outer): Likewise.
        (expand_omp_taskloop_for_inner): Likewise.
        (expand_oacc_for): Likewise.
        (expand_omp_sections): Likewise.
        (expand_omp_single): Likewise.
        (expand_omp_synch): Likewise.
        (expand_omp_atomic_load): Likewise.
        (expand_omp_atomic_store): Likewise.
        (expand_omp_atomic_fetch_op): Likewise.
        (expand_omp_atomic_pipeline): Likewise.
        (expand_omp_atomic_mutex): Likewise.
        (expand_omp_target): Likewise.
        (grid_expand_omp_for_loop): Likewise.
        (grid_expand_target_grid_body): Likewise.
        (build_omp_regions_1): Likewise.
        * omp-low.c (check_combined_parallel): Skip debug stmts.
        * postreload.c (fixup_debug_insns): Skip nonbind debug insns.
        * regcprop.c (find_oldest_value_reg): Ensure REGNO is not a pseudo.
        * sese.c (sese_trivially_empty_bb_p): Call is_gimple_debug in
        test.
        * tree-cfg.c (make_blobs_1): Skip debug stmts.
        (make_edges): Likewise.
        (cleanup_dead_labels): Likewise.
        (gimple_can_merge_blocks_p): Likewise.
        (stmt_starts_bb_p): Likewise.
        (gimple_block_label): Likewise.
        (gimple_redirect_edge_and_branch): Likewise.
        * tree-cfgcleanup.c (remove_forwarder_block): Rearrange skipping
        of debug stmts.
        (execute_cleanup_cfg_post_optimizing): Dump enumerated decls with
        TDF_SLIM.
        * tree-pretty-print (print_declaration): Omit initializer in slim
        dumps.
        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Mark begin stmt
        markers.
        (eliminate_unnecessary_stmts): Stabilize block removal order.
        * tree-ssa-tail-merge.c (find_duplicate): Skip debug stmts.
        * var-tracking.c (get_first_insn): New.
        (vt_emit_notes): Call it.
        (vt_initialize): Walk any insns before the first BB.
        (delete_debug_insns): Likewise.

        * gimple.h (enum gimple_debug_subcode): Add
        GIMPLE_DEBUG_BEGIN_STMT.
        (gimple_debug_begin_stmt_p): New.
        (gimple_debug_nonbind_marker_p): New.
        * tree.h (MAY_HAVE_DEBUG_MARKER_STMTS): New.
        (MAY_HAVE_DEBUG_BIND_STMTS): Renamed from....
        (MAY_HAVE_DEBUG_STMTS): ... this.  Check both.
        * insn-notes.def (BEGIN_STMT): New.
        * rtl.h (MAY_HAVE_DEBUG_MARKER_INSNS): New.
        (MAY_HAVE_DEBUG_BIND_INSNS): Renamed from....
        (MAY_HAVE_DEBUG_INSNS): ... this.  Check both.
        (NOTE_MARKER_LOCATION, NOTE_MARKER_P): New.
        (DEBUG_BIND_INSN_P, DEBUG_MARKER_INSN_P): New.
        (INSN_DEBUG_MARKER_KIND): New.
        (GEN_RTX_DEBUG_MARKER_BEGIN_STMT_PAT): New.
        (INSN_VAR_LOCATION): Check for VAR_LOCATION.
        (INSN_VAR_LOCATION_PTR): New.
        * cfgexpand.c (expand_debug_locations): Handle debug bind insns
        only.
        (expand_gimple_basic_block): Likewise.  Emit debug temps for TER
        deps only if debug bind insns are enabled.
        (pass_expand::execute): Avoid deep TER and expand
        debug locations for debug bind insns only.
        * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Narrow
        debug stmts special handling down to debug bind stmts.
        * combine.c (try_combine): Narrow debug insns special handling
        down to debug bind insns.
        * cse.c (delete_trivially_dead_insns): Handle debug bindings.
        Narrow debug insns preexisting special handling down to debug
        bind insns.
        * dce.c (rest_of_handle_ud_dce): Narrow debug insns special
        handling down to debug bind insns.
        * function.c (instantiate_virtual_regs): Skip debug markers,
        adjust handling of debug binds.
        * gimple-ssa-backprop.c (backprop::prepare_change): Try debug
        temp insertion iff MAY_HAVE_DEBUG_BIND_STMTS.
        * haifa-sched.c (schedule_insn): Narrow special handling of debug
        insns to debug bind insns.
        * ipa-param-manipulation.c (ipa_modify_call_arguments): Narrow
        special handling of debug stmts to debug bind stmts.
        * ipa-split.c (split_function): Likewise.
        * ira.c (combine_and_move_insns): Adjust debug bind insns only.
        * loop-unroll.c (apply_opt_in_copies): Adjust tests on bind
        debug insns.
        * reg-stack.c (convert_regs_1): Use DEBUG_BIND_INSN_P.
        * regrename.c (build_def_use): Likewise.
        * regcprop.c (copyprop_hardreg_forward_1): Likewise.
        (pass_cprop_hardreg): Narrow special casing of debug insns to
        debug bind insns.
        * regstat.c (regstat_init_n_sets_and_refs): Likewise.
        * reload1.c (reload): Likewise.
        * sese.c (sese_insert_phis_for_liveouts): Narrow special
        casing of debug stmts to debug bind stmts.
        * shrink-wrap.c (move_insn_for_shrink_wrap): Likewise.
        * ssa-iterators.h (num_imm_uses): Likewise.
        * tree-cfg.c (gimple_merge_blocks): Narrow special casing of
        debug stmts to debug bind stmts.
        * tree-inline.c (tree_function_versioning): Narrow special casing
        of debug stmts to debug bind stmts.
        * tree-loop-distribution.c (generate_loops_for_partition):
        Narrow special casing of debug stmts to debug bind stmts.
        * tree-sra.c (analyze_access_subtree): Narrow special casing
        of debug stmts to debug bind stmts.
        * tree-ssa-dce.c (remove_dead_stmt): Narrow special casing of debug
        stmts to debug bind stmts.
        * tree-ssa-loop-ivopt.c (remove_unused_ivs): Narrow special
        casing of debug stmts to debug bind stmts.
        * tree-ssa-reassoc.c (reassoc_remove_stmt): Likewise.
        * tree-ssa-tail-merge.c (tail_merge_optimize): Narrow special
        casing of debug stmts to debug bind stmts.
        * tree-ssa-threadedge.c (propagate_threaded_block_debug_info):
        Likewise.
        * tree-ssa.c (flush_pending_stmts): Narrow special casing of
        debug stmts to debug bind stmts.
        (gimple_replace_ssa_lhs): Likewise.
        (insert_debug_temp_for_var_def): Likewise.
        (insert_debug_temps_for_defs): Likewise.
        (reset_debug_uses): Likewise.
        * tree-ssanames.c (release_ssa_name_fn): Likewise.
        * tree-vect-loop-manip.c (adjust_debug_stmts_now): Likewise.
        (adjust_debug_stmts): Likewise.
        (adjust_phi_and_debug_stmts): Likewise.
        (vect_do_peeling): Likewise.
        * tree-vect-loop.c (vect_transform_loop): Likewise.
        * valtrack.c (propagate_for_debug): Use BIND_DEBUG_INSN_P.
        * var-tracking.c (adjust_mems): Narrow special casing of debug
        insns to debug bind insns.
        (dv_onepart_p, dataflow_set_clar_at_call, use_type): Likewise.
        (compute_bb_dataflow, vt_find_locations): Likewise.
        (vt_expand_loc, emit_notes_for_changes): Likewise.
        (vt_init_cfa_base): Likewise.
        (vt_emit_notes): Likewise.
        (vt_initialize): Likewise.
        (vt_finalize): Likewise.

        * emit-rtl.c (next_nondebug_insn, prev_nondebug_insn): Reorder.
        (next_nonnote_nondebug_insn, prev_nonnote_nondebug_insn): Reorder.
        (next_nonnote_nondebug_insn_bb): New.
        (prev_nonnote_nondebug_insn_bb): New.
        (prev_nonnote_insn_bb, next_nonnote_insn_bb): Remove.
        * rtl.h (prev_nonnote_insn_bb, next_nonnote_insn_bb): Remove decls.
        (prev_nonnote_nondebug_insn_bb): Declare.
        (next_nonnote_nondebug_insn_bb): Declare.
        * cfgbuild.c (find_bb_boundaries): Adjust to skip debug insns.
        * cfgrtl.c (get_last_bb_insn): Likewise.
        * lra.c (push_insns): Likewise.

2017-12-11  David Malcolm  <dmalcolm@redhat.com>

        PR c/82050
        * selftest-run-tests.c (selftest::run_tests): Move start/finish code
        to...
        * selftest.c (selftest::test_runner::test_runner): New ctor.
        (selftest::test_runner::~test_runner): New dtor.
        * selftest.h (class selftest::test_runner): New class.

2017-12-11  Carl Love  <cel@us.ibm.com>

        * config/rs6000/altivec.h (vec_extract_fp32_from_shorth,
        vec_extract_fp32_from_shortl]): Add #defines.
        * config/rs6000/rs6000-builtin.def (VSLDOI_2DI): Add macro expansion.
        * config/rs6000/rs6000-c.c (ALTIVEC_BUILTIN_VEC_UNPACKH,
        ALTIVEC_BUILTIN_VEC_UNPACKL, ALTIVEC_BUILTIN_VEC_AND,
        ALTIVEC_BUILTIN_VEC_SLD, ALTIVEC_BUILTIN_VEC_SRL,
        ALTIVEC_BUILTIN_VEC_SRO, ALTIVEC_BUILTIN_VEC_SLD,
        ALTIVEC_BUILTIN_VEC_SLL): Add expansions.
        * doc/extend.texi: Add documentation for the added builtins.

2017-12-11  Alexandre Oliva  <aoliva@redhat.com>

        PR rtl-optimization/80693
        PR rtl-optimization/81019
        PR rtl-optimization/81020
        * combine.c (distribute_notes): Reset any REG_UNUSED REGs that
        are not mentioned in i3.  Place the REG_UNUSED note on i2,
        possibly modified to REG_DEAD, if it did not originate in i3.

2017-12-11  Jakub Jelinek  <jakub@redhat.com>

        * recog.c (store_data_bypass_p_1): New function.
        (store_data_bypass_p): Handle USE in a PARALLEL like CLOBBER.  Use
        store_data_bypass_p_1 to avoid code duplication.  Formatting fixes.

2017-12-11  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/83361
        * ifcvt.c (if_convert): Call fixup_partitions.

2017-12-11  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add support for
        early folding of splat_u{8,16,32}.

2017-12-11  Jakub Jelinek  <jakub@redhat.com>

        * config/aarch64/aarch64.c (aarch64_print_operand): Don't start
        output_operand_lossage first argument with capital letter.
        (aarch64_override_options): Don't start error and sorry first argument
        with capital letter.

2017-12-11  Andi Kleen  <ak@linux.intel.com>

        PR gcov-profile/83355
        * auto-profile.c (string_table::get_index_by_decl): Don't
        recurse when abstract origin points to itself.

2017-12-11  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/83320
        * gimple-loop-interchange.cc (free_data_refs_with_aux): Use delete.
        (prune_datarefs_not_in_loop): Ditto.

2017-12-10  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Specific): Tweak link to mkssoftware.com.

2017-12-10  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/83337
        * gimple-loop-interchange.cc (compute_access_stride): Handle
        bitfield DRs properly.

2017-12-09  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/83338
        * tree-vect-stmts.c (vectorizable_operation): Handle POINTER_DIFF_EXPR
        vectorization as MINUS_EXPR with a subsequent VIEW_CONVERT_EXPR from
        vector of unsigned integers to vector of signed integers.

2017-12-08  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/83317
        * lra-constraints.c (process_address_1): Add insn code check.

2017-12-08  Michael Matz  <matz@suse.de>

        Fix PR tree-optimization/83323
        * gimple-loop-jam (unroll_jam_possible_p): Correct test for
        head-controlled loops and loop BBs.
        * common.opt (funroll-and-jam): Remove, instead ...
        (floop-unroll-and-jam): ... reuse this option.
        * opts.c (default_options_table): Use OPT_floop_unroll_and_jam.
        * doc/invoke.texi (-funroll-and-jam): Move docu to ...
        (-floop-unroll-and-jam): ... this option.

2017-12-08  Jakub Jelinek  <jakub@redhat.com>

        * ipa-polymorphic-call.c (noncall_stmt_may_be_vtbl_ptr_store): Fix
        a comment typo, get_base_ref_and_offset -> get_ref_base_and_extent.
        * ipa-prop.c (stmt_may_be_vtbl_ptr_store): Likewise.

2017-12-08  Richard Biener  <rguenther@suse.de>

        PR middle-end/81782
        * tree-ssa-uninit.c (warn_uninitialized_vars): Properly
        handle accesses outside of zero-sized vars.

2017-12-08  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/83141
        * tree-sra.c (contains_vce_or_bfcref_p): Move up in the file, also
        test for MEM_REFs implicitely changing types with padding.  Remove
        inline keyword.
        (build_accesses_from_assign): Added contains_vce_or_bfcref_p checks.

2017-12-08  Jakub Jelinek  <jakub@redhat.com>

        * config/arc/arc.c (arc_attribute_table): Add exclusions to
        the comment.
        * config/avr/avr.c (avr_attribute_table): Likewise.
        * config/msp430/msp430.c (msp430_attribute_table): Likewise.
        * config/rl78/rl78.c (rl78_attribute_table): Likewise.
        * config/nds32/nds32.c (nds32_attribute_table): Likewise.
        * config/darwin.h (SUBTARGET_ATTRIBUTE_TABLE): Initialize new member
        of struct attribute_spec.
        * config/i386/cygming.h (SUBTARGET_ATTRIBUTE_TABLE): Likewise.

2017-12-08  Ulrich Weigand  <uweigand@de.ibm.com>

        PR target/82960
        * config/spu/spu.c (pad_bb): Only check INSN_CODE when INSN_P is true.

2017-12-08  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/83609
        * profile-count.c (profile_count::from_gcov_type): Move from
        profile-count.h; handle overflow.
        * profile-count.h (profile_count::from_gcov_type): Move offline.

2017-12-08  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/83304
        * combine.c (move_deaths): If we do not know where a register died,
        search for it.

2017-12-08  Richard Biener  <rguenther@suse.de>

        * gimple-loop-interchange.cc (tree_loop_interchange::interchange):
        Provide -fopt-info-loop feedback when we interchange in a nest.

2017-06-08  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/driver-arm.c (arm_cpu_table): Use fp-capable product names
        for armv6 ARM CPU IDs.

2017-06-08  Richard Earnshaw  <rearnsha@arm.com>

        * common/config/arm/arm-common.c: Include <algorithm>.
        (INCLUDE_VECTOR): Define.
        (compare_opt_names): New function.
        (arm_rewrite_selected_arch): Only strip out extensions that can be
        expressed through -mfpu.  Sort the remaining extensions
        alphabetically.

2017-06-08  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.h (arm_asm_auto_mfpu): Declare.
        (ASM_CPU_SPEC_FUNCTIONS): Add new rule asm_auto_mfpu.
        (ASM_CPU_SPEC): Use it if -mfpu is set to auto.
        * common/config/arm/arm-common.c (arm_asm_auto_mfpu): New function.

2017-06-08  Tristan Gingold  <gindold@adacore.com>

        PR ada/81470
        * dwarf2out.c (dwarf2out_do_cfi_startproc): Only emit
        .cfi_personality or .cfi_lsda if the eh data format is dwarf2.

2017-12-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/sol2.h (SOLARIS_ATTRIBUTE_TABLE): Initialize new member
        of struct attribute_spec.

2017-12-08  Julia Koval  <julia.koval@intel.com>

        * config/i386/avx512vnniintrin.h (_mm512_dpwssds_epi32,
        _mm512_mask_dpwssds_epi32, _mm512_maskz_dpwssds_epi32): New intrinsics.
        * config/i386/avx512vnnivlintrin.h (_mm256_dpwssds_epi32,
        _mm256_mask_dpwssds_epi32, _mm256_maskz_dpwssds_epi32,
        _mm_dpwssds_epi32, _mm_mask_dpwssds_epi32,
        _mm_maskz_dpwssds_epi32): Ditto.

2017-12-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81303
        * tree-vect-stmts.c (vect_is_simple_cond): For invariant
        conditions try to create a comparison vector type matching
        the data vector type.
        (vectorizable_condition): Adjust.
        * tree-vect-patterns.c (vect_recog_mask_conversion_pattern):
        Leave invariant conditions alone in case we can vectorize those.

2017-12-08  Julia Koval  <julia.koval@intel.com>

        * config/i386/avx512vnniintrin.h (_mm512_dpwssd_epi32,
        _mm512_mask_dpwssd_epi32, _mm512_maskz_dpwssd_epi32): New intrinsics.
        * config/i386/avx512vnnivlintrin.h (_mm256_dpwssd_epi32,
        _mm256_mask_dpwssd_epi32, _mm256_maskz_dpwssd_epi32, _mm_dpwssd_epi32,
        _mm_mask_dpwssd_epi32, _mm_maskz_dpwssd_epi32): Ditto.

2017-12-08  Julia Koval  <julia.koval@intel.com>

        * config/i386/avx512vnniintrin.h (_mm512_dpbusds_epi32,
        _mm512_mask_dpbusds_epi32, _mm512_maskz_dpbusds_epi32): New.
        * config/i386/avx512vnnivlintrin.h (_mm256_dpbusds_epi32,
        _mm256_mask_dpbusds_epi32, _mm256_maskz_dpbusds_epi32,
        _mm_dpbusds_epi32, _mm_mask_dpbusds_epi32,
        _mm_maskz_dpbusds_epi32): New intrinsics.

2017-12-07  Sandra Loosemore  <sandra@codesourcery.com>

        * config/nios2/nios2.md (ld<bhw_uns>io): Add splitter for memory
        operand.
        (ld<bh>io_signed): Likewise.
        (st<bhw>io): Likewise.
        * config/nios2/predicates.md (ldstio_memory_operand): Allow
        SMALL_INT12 constant integer operand.

2017-12-07  Sandra Loosemore  <sandra@codesourcery.com>

        * config/nios2/nios2.c (nios2_symbolic_constant_allowed):
        Rename to...
        (nios2_large_constant_allowed): ...this.  Adjust uses.
        (nios2_plus_symbolic_constant_p): Rename to...
        (nios2_plus_large_constant_p): ...this.  Adjust uses.
        (nios2_legitimate_address_p): Correct CONST_INT handling.
        (nios2_symbolic_memory_operand_p): Rename to...
        (nios2_large_constant_memory_operand_p): ...this.  Adjust uses.
        (nios2_large_constant_p): Check for large constant integers too.
        (nios2_split_large_constant): Handle constant integers.
        (nios2_split_symbolic_memory_operand): Rename to...
        (nios2_split_large_constant_memory_operand): ...this.  Adjust uses.
        (nios2_legitimize_constant_address): Handle constant integers.
        (r0rel_constant_p): Handle small constant integers.
        (nios2_print_operand_address): Handle r0-relative integer addresses.
        * config/nios2/nios2-protos.h: Adjust for renamed functions.
        * config/nios2/nios2.md: Adjust for renamed functions.

2017-12-07  Andrew Waterman  <andrew@sifive.com>

        * config/riscv/riscv.c (TARGET_ASM_SELECT_SECTION): New define.
        (TARGET_HAVE_SRODATA_SECTION): New define.
        (riscv_select_section): New function.

2017-12-08  Joseph Myers  <joseph@codesourcery.com>
            Alexander Monakov  <amonakov@ispras.ru>
            Jakub Jelinek  <jakub@redhat.com>

        PR target/81906
        * config/i386/i386.c (ix86_expand_rint): Handle flag_rounding_math.

2017-12-07  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/aarch64/aarch64.c (aarch64_print_address_internal): Return
        a bool success value.  Don't call output_operand_lossage here.
        (aarch64_print_ldpstp_address): Return a bool success value.
        (aarch64_print_operand_address): Call output_addr_const if
        aarch64_print_address_internal fails.
        (aarch64_print_operand): Don't assert that the mode is 16 bytes for
        'y'; call output_operand_lossage instead.  Call output_operand_lossage
        if aarch64_print_ldpstp_address fails.

2017-12-07  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-vector-builder.h
        (tree_vector_builder::binary_encoded_nelts): Declare.
        * tree-vector-builder.c
        (tree_vector_builder::binary_encoded_nelts): New function.
        * fold-const.c (negate_expr_p): Likewise.
        (operand_equal_p, fold_checksum_tree): Likewise.
        * tree-loop-distribution.c (const_with_all_bytes_same): Likewise.
        * tree.c (integer_zerop, integer_onep, integer_all_onesp, real_zerop)
        (real_onep, real_minus_onep, add_expr, initializer_zerop): Likewise.
        (uniform_vector_p): Likewise.
        * varasm.c (const_hash_1, compare_constant): Likewise.
        * tree-ssa-ccp.c: Include tree-vector-builder.h.
        (valid_lattice_transition): Operate directly on the VECTOR_CST
        encoding.
        * ipa-icf.c: Include tree-vector-builder.h.
        (sem_variable::equals): Operate directly on the VECTOR_CST encoding.
        * print-tree.c (print_node): Print encoding of VECTOR_CSTs.

2017-12-07  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree.c (build_vector): Delete.
        * tree.h (build_vector): Make static and move into the self-testing
        block.

2017-12-07  Richard Sandiford  <richard.sandiford@linaro.org>

        * vector-builder.h (vector_builder::derived): New const overload.
        (vector_builder::elt): New function.
        * tree-vector-builder.h (tree_vector_builder::type): New function.
        (tree_vector_builder::apply_step): Declare.
        * tree-vector-builder.c (tree_vector_builder::apply_step): New
        function.
        * gimple-fold.h (tree_vector_builder): Declare.
        (gimple_build_vector): Take a tree_vector_builder instead of a
        type and vector of elements.
        * gimple-fold.c (gimple_build_vector): Likewise.
        * tree-vect-loop.c (get_initial_def_for_reduction): Update call
        accordingly.
        (get_initial_defs_for_reduction): Likewise.
        (vectorizable_induction): Likewise.

2017-12-07  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-vector-builder.h
        (tree_vector_builder::new_binary_operation): Declare.
        * tree-vector-builder.c
        (tree_vector_builder::new_binary_operation): New function.
        * fold-const.c (fold_relational_const): Use it.
        (const_binop): Likewise.  Check that both input vectors have
        the same number of elements, thus excluding things like WIDEN_SUM.
        Check whether it is possible to operate directly on the encodings
        of stepped inputs.

2017-12-07  Richard Sandiford  <richard.sandiford@linaro.org>

        * fold-const.c (fold_negate_expr_1): Use tree_vector_builder and
        new_unary_operation, operating only on the encoded elements.
        (const_unop): Likewise.
        (exact_inverse): Likewise.
        (distributes_over_addition_p): New function.
        (const_binop): Use tree_vector_builder and new_unary_operation
        for combinations of VECTOR_CST and INTEGER_CST.  Operate only
        on the encoded elements unless the encoding is strided and the
        operation does not distribute over addition.
        (fold_convert_const):  Use tree_vector_builder and
        new_unary_operation.  Operate only on the encoded elements
        for truncating integer conversions, or for non-stepped encodings.

2017-12-07  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/sparc/sparc.c: Include tree-vector-builder.h.
        (sparc_fold_builtin): Use tree_vector_builder instead of build_vector.
        * expmed.c: Include tree-vector-builder.h.
        (make_tree): Use tree_vector_builder instead of build_vector.
        * fold-const.c: Include tree-vector-builder.h.
        (const_binop): Use tree_vector_builder instead of build_vector.
        (const_unop): Likewise.
        (native_interpret_vector): Likewise.
        (fold_vec_perm): Likewise.
        (fold_ternary_loc): Likewise.
        * gimple-fold.c: Include tree-vector-builder.h.
        (gimple_fold_stmt_to_constant_1): Use tree_vector_builder instead
        of build_vector.
        * tree-ssa-forwprop.c: Include tree-vector-builder.h.
        (simplify_vector_constructor): Use tree_vector_builder instead
        of build_vector.
        * tree-vect-generic.c: Include tree-vector-builder.h.
        (add_rshift): Use tree_vector_builder instead of build_vector.
        (expand_vector_divmod): Likewise.
        (optimize_vector_constructor): Likewise.
        * tree-vect-loop.c: Include tree-vector-builder.h.
        (vect_create_epilog_for_reduction): Use tree_vector_builder instead
        of build_vector.  Explicitly use a stepped encoding for
        { 1, 2, 3, ... }.
        * tree-vect-slp.c: Include tree-vector-builder.h.
        (vect_get_constant_vectors): Use tree_vector_builder instead
        of build_vector.
        (vect_transform_slp_perm_load): Likewise.
        (vect_schedule_slp_instance): Likewise.
        * tree-vect-stmts.c: Include tree-vector-builder.h.
        (vectorizable_bswap): Use tree_vector_builder instead of build_vector.
        (vect_gen_perm_mask_any): Likewise.
        (vectorizable_call): Likewise.  Explicitly use a stepped encoding.
        * tree.c: (build_vector_from_ctor): Use tree_vector_builder instead
        of build_vector.
        (build_vector_from_val): Likewise.  Explicitly use a duplicate
        encoding.

2017-12-07  Richard Sandiford  <richard.sandiford@arm.com>

        * doc/generic.texi (VECTOR_CST): Describe new representation of
        vector constants.
        * vector-builder.h: New file.
        * tree-vector-builder.h: Likewise.
        * tree-vector-builder.c: Likewise.
        * Makefile.in (OBJS): Add tree-vector-builder.o.
        * tree.def (VECTOR_CST): Update comment to refer to generic.texi.
        * tree-core.h (tree_base): Add a vector_cst field to the u union.
        (tree_vector): Change the number of elements to
        vector_cst_encoded_nelts.
        * tree.h (VECTOR_CST_NELTS): Redefine using TYPE_VECTOR_SUBPARTS.
        (VECTOR_CST_ELTS): Delete.
        (VECTOR_CST_ELT): Redefine using vector_cst_elt.
        (VECTOR_CST_LOG2_NPATTERNS, VECTOR_CST_NPATTERNS): New macros.
        (VECTOR_CST_NELTS_PER_PATTERN, VECTOR_CST_DUPLICATE_P): Likewise.
        (VECTOR_CST_STEPPED_P, VECTOR_CST_ENCODED_ELTS): Likewise.
        (VECTOR_CST_ENCODED_ELT): Likewise.
        (vector_cst_encoded_nelts): New function.
        (make_vector): Take the values of VECTOR_CST_LOG2_NPATTERNS and
        VECTOR_CST_NELTS_PER_PATTERN as arguments.
        (vector_cst_int_elt, vector_cst_elt): Declare.
        * tree.c: Include tree-vector-builder.h.
        (tree_code_size): Abort if passed VECTOR_CST.
        (tree_size): Update for new VECTOR_CST layout.
        (make_vector): Take the values of VECTOR_CST_LOG2_NPATTERNS and
        VECTOR_CST_NELTS_PER_PATTERN as arguments.
        (build_vector): Use tree_vector_builder.
        (vector_cst_int_elt, vector_cst_elt): New functions.
        (drop_tree_overflow): For VECTOR_CST, drop the TREE_OVERFLOW from the
        encoded elements and then create the vector in the canonical form.
        (check_vector_cst, check_vector_cst_duplicate, check_vector_cst_fill)
        (check_vector_cst_stepped, test_vector_cst_patterns): New functions.
        (tree_c_tests): Call test_vector_cst_patterns.
        * lto-streamer-out.c (DFS::DFS_write_tree_body): Handle the new
        VECTOR_CST fields.
        (hash_tree): Likewise.
        * tree-streamer-out.c (write_ts_vector_tree_pointers): Likewise.
        (streamer_write_tree_header): Likewise.
        * tree-streamer-in.c (lto_input_ts_vector_tree_pointers): Likewise.
        (streamer_alloc_tree): Likewise.  Update call to make_vector.
        * fold-const.c (fold_ternary_loc): Avoid using VECTOR_CST_ELTS.

2017-12-07  Richard Sandiford  <richard.sandiford@linaro.org>

        * selftest.h (ASSERT_TRUE_AT, ASSERT_FALSE_AT, ASSERT_EQ_AT)
        (ASSERT_NE, ASSERT_PRED1): Add underscores to local variable names
        * selftest-rtl.h (ASSERT_RTX_EQ, ASSERT_RTX_PTR_EQ): Likewise.

2017-12-07  Bin Cheng  <bin.cheng@arm.com>
            Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81303
        * Makefile.in (gimple-loop-interchange.o): New object file.
        * common.opt (floop-interchange): Reuse the option from graphite.
        * doc/invoke.texi (-floop-interchange): Ditto.  New document for
        -floop-interchange and mention it for -O3.
        * opts.c (default_options_table): Enable -floop-interchange at -O3.
        * gimple-loop-interchange.cc: New file.
        * params.def (PARAM_LOOP_INTERCHANGE_MAX_NUM_STMTS): New parameter.
        (PARAM_LOOP_INTERCHANGE_STRIDE_RATIO): New parameter.
        * passes.def (pass_linterchange): New pass.
        * timevar.def (TV_LINTERCHANGE): New time var.
        * tree-pass.h (make_pass_linterchange): New declaration.
        * tree-ssa-loop-ivcanon.c (create_canonical_iv): Change to external
        interchange.  Record IV before/after increment in new parameters.
        * tree-ssa-loop-ivopts.h (create_canonical_iv): New declaration.
        * tree-vect-loop.c (vect_is_simple_reduction): Factor out reduction
        path check into...
        (check_reduction_path): ...New function here.
        * tree-vectorizer.h (check_reduction_path): New declaration.

2017-12-07  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/83252
        PR rtl-optimization/80818
        * lra.c (add_regs_to_insn_regno_info): Make a hard reg in CLOBBER
        always early clobbered.
        * lra-lives.c (process_bb_lives): Check input hard regs for early
        clobbered non-operand hard reg.

2017-12-07  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/83164
        * tree-cfg.c (verify_gimple_assign_binary): Don't require
        types_compatible_p, just that TYPE_MODE is the same.

2017-12-07  Martin Sebor  <msebor@redhat.com>

        PR c/81544
        * attribs.c (empty_attribute_table): Initialize new member of
        struct attribute_spec.
        (decl_attributes): Add argument.  Handle mutually exclusive
        combinations of attributes.
        (selftests::test_attribute_exclusions): New function.
        (selftests::attribute_c_tests): Ditto.
        * attribs.h (decl_attributes): Add default argument.
        * selftest.h (attribute_c_tests): Declare.
        * selftest-run-tests.c (selftest::run_tests): Call attribute_c_tests.
        * tree-core.h (attribute_spec::exclusions, exclude): New type and
        member.
        * doc/extend.texi (Common Function Attributes): Update const and pure.
        * config/alpha/alpha.c (vms_attribute_table): Initialize new member
        of struct attribute_spec.
        * config/arc/arc.c (arc_attribute_table): Same.
        * config/arm/arm.c (arm_attribute_table): Same.
        * config/avr/avr.c ( avr_attribute_table): Same.
        * config/bfin/bfin.c (bfin_attribute_table): Same.
        * config/cr16/cr16.c (cr16_attribute_table): Same.
        * config/epiphany/epiphany.c (epiphany_attribute_table): Same.
        * config/h8300/h8300.c (h8300_attribute_table): Same.
        * config/i386/i386.c (ix86_attribute_table): Same.
        * config/ia64/ia64.c (ia64_attribute_table): Same.
        * config/m32c/m32c.c (m32c_attribute_table): Same.
        * config/m32r/m32r.c (m32r_attribute_table): Same.
        * config/m68k/m68k.c (m68k_attribute_table): Same.
        * config/mcore/mcore.c (mcore_attribute_table): Same.
        * config/microblaze/microblaze.c (microblaze_attribute_table): Same.
        * config/mips/mips.c (mips_attribute_table): Same.
        * config/msp430/msp430.c (msp430_attribute_table): Same.
        * config/nds32/nds32.c (nds32_attribute_table): Same.
        * config/nvptx/nvptx.c (nvptx_attribute_table): Same.
        * config/powerpcspe/powerpcspe.c (rs6000_attribute_table): Same.
        * config/rl78/rl78.c (rl78__attribute_table): Same.
        * config/rs6000/rs6000.c (rs6000_attribute_table): Same.
        * onfig/rx/rx.c (rx_attribute_table): Same.
        * config/s390/s390.c (s390_handle_vectorbool_attribute): Same.
        * config/sh/sh.c (sh_attribute_table): Same.
        * config/sparc/sparc.c (sparc_attribute_table): Same.
        * config/spu/spu.c (spu_attribute_table): Same.
        * config/stormy16/stormy16.c (xstormy16_attribute_table): Same.
        * config/v850/v850.c (v850_attribute_table): Same.
        * config/visium/visium.c (visium_attribute_table): Same.

2017-12-07  Tamar Christina  <tamar.christina@arm.com>

        PR target/82641
        * config/arm/arm.c (INCLUDE_STRING): Define.
        (arm_last_printed_arch_string, arm_last_printed_fpu_string): New.
        (arm_declare_function_name): Conservatively emit .arch, .arch_extensions
        and .fpu.

2017-12-07  Michael Matz  <matz@suse.de>

        Add unroll and jam pass

        * gimple-loop-jam.c: New file.
        * Makefile.in (OBJS): Add gimple-loop-jam.o.
        * common.opt (funroll-and-jam): New option.
        * opts.c (default_options_table): Add unroll-and-jam at -O3.
        * params.def (PARAM_UNROLL_JAM_MIN_PERCENT): New param.
        (PARAM_UNROLL_JAM_MAX_UNROLL): Ditto.
        * passes.def: Add pass_loop_jam.
        * timevar.def (TV_LOOP_JAM): Add.
        * tree-pass.h (make_pass_loop_jam): Declare.
        * cfgloop.c (flow_loop_tree_node_add): Add AT argument.
        * cfgloop.h (flow_loop_tree_node_add): Adjust declaration.
        * cfgloopmanip.c (duplicate_loop): Add AT argument, adjust call
        to flow_loop_tree_node_add.
        (duplicate_subloops, copy_loops_to): Append to sibling list.
        * cfgloopmanip.h: (duplicate_loop): Adjust declaration.
        * doc/invoke.texi (-funroll-and-jam): Document new option.
        (unroll-jam-min-percent, unroll-jam-max-unroll): Document new params.

2017-12-07  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83296
        PR tree-optimization/67769
        * tree-ssa-phiopt.c (conditional_replacement): Do not reset
        flow sensitive info in an unrelated BB.
        (value_replacement): Use reset_flow_sensitive_info.
        (minmax_replacement): Reset flow sensitive info on the def
        we move.  Do not reset flow sensitive info in the whole BB
        we move the stmt to.
        (abs_replacement): Likewise.

2017-12-07  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/43871
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Set
        rs6000_cpu to the given -mcpu=, or to the default processor.

2017-12-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.h (rs6000_cpu_attr): Delete.
        * config/rs6000/rs6000.c (rs6000_variable_issue_1): Use rs6000_tune
        instead of rs6000_cpu_attr.
        (rs6000_adjust_cost): Ditto.
        (is_microcoded_insn): Ditto.
        (rs6000_adjust_priority): Ditto.
        (rs6000_issue_rate): Ditto.
        (rs6000_use_sched_lookahead): Ditto.
        (rs6000_use_sched_lookahead_guard): Ditto.
        (rs6000_sched_reorder): Ditto.
        (force_new_group): Ditto.
        * config/rs6000/rs6000.md (cpu attribute): Ditto.
        (group_ending_nop): Ditto.

2017-12-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.opt (rs6000_tune): New variable.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Also set
        rs6000_tune.  Use rs6000_tune instead of rs6000_cpu where appropriate.
        (rs6000_loop_align): Use rs6000_tune instead of rs6000_cpu where
        appropriate.
        (rs6000_reassociation_width): Ditto.
        (rs6000_emit_epilogue): Ditto.
        (rs6000_adjust_cost): Ditto.
        (is_microcoded_insn): Ditto.
        (is_cracked_insn): Ditto.
        (rs6000_adjust_priority): Ditto.
        (rs6000_sched_reorder): Ditto.
        (rs6000_sched_reorder2): Ditto.
        (insn_must_be_first_in_group): Ditto.
        (insn_must_be_last_in_group): Ditto.
        (rs6000_register_move_cost): Ditto.
        * config/rs6000/rs6000.h (rs6000_cpu_attr): Use rs6000_tune instead of
        rs6000_cpu.

2017-12-07  Julia Koval  <julia.koval@intel.com>

        * config.gcc: Add vaesintrin.h.
        * config/i386/i386-builtin-types.def (V64QI_FTYPE_V64QI_V64QI):
        New type.
        * config/i386/i386-builtin.def (__builtin_ia32_vaesdec_v16qi,
        __builtin_ia32_vaesdec_v32qi, __builtin_ia32_vaesdec_v64qi):
        New builtins.
        * config/i386/i386.c (ix86_expand_args_builtin): Handle new type.
        * config/i386/immintrin.h: Include vaesintrin.h.
        * config/i386/sse.md (vaesdec_<mode>): New pattern.
        * config/i386/vaesintrin.h (_mm256_aesdec_epi128, _mm512_aesdec_epi128,
        _mm_aesdec_epi128): New intrinsics.

2017-12-06  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (C_COMMON_OBJS): Add c-family/c-spellcheck.o.
        * spellcheck-tree.c (find_closest_macro_cpp_cb): Move to
        c-family/c-spellcheck.cc.
        (best_macro_match::best_macro_match): Likewise.
        * spellcheck-tree.h
        (struct edit_distance_traits<cpp_hashnode *>): Move to
        c-family/c-spellcheck.h.
        (class best_macro_match): Likewise.

2017-12-06  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/83293
        * gimple-ssa-strength-reduction.c (insert_initializers): Use
        GSI_NEW_STMT instead of GSI_SAME_STMT in gsi_insert_after that
        might insert into empty bb.

        PR sanitizer/81281
        * match.pd ((T)(P + A) - (T)P -> (T) A): Split into separate
        simplify for plus with :c added, and pointer_plus without that.
        ((T)P - (T)(P + A) -> -(T) A): Likewise.  If type is integral
        with undefined overflow and the conversion is not widening,
        perform negation in utype and only convert to type afterwards.
        ((T)(P + A) - (T)(P + B) -> (T)A - (T)B): Split into separate
        simplify for plus with :c added, and pointer_plus without that.
        If type is integral with undefined overflow and the conversion is
        not widening, perform minus in utype and only convert to type
        afterwards.  Move the last pointer_diff_expr simplify into the
        two outermost ifs.

2017-12-06  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/82646
        * builtins.c (maybe_emit_chk_warning): Use size as the bound for
        strncpy, not maxlen.

2017-12-06  Martin Sebor  <msebor@redhat.com>

        * doc/invoke.texi (-Wstringop-truncation): Mention attribute
        nonstring.

        PR tree-optimization/83075
        * tree-ssa-strlen.c (handle_builtin_stxncpy): Avoid assuming
        strncat/strncpy don't change length of source string.

2017-12-06  Eric Botcazou  <ebotcazou@adacore.com>

        Revert
        2017-11-29  Martin Aberg  <maberg@gaisler.com>

        * config/sparc/sparc.md (divdf3_fix): Add NOP and adjust length
        to prevent b2bst errata sequence.
        (sqrtdf2_fix): Likewise.

2017-12-06  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/81945
        * cfgloop.h (FOR_EACH_LOOP_FN): Use FN instead of hardcoding fn.
        * tree-cfg.c (move_sese_region_to_fn): If any of the loops moved
        to dest_cfun has orig_loop_num set, either remap it to the new
        loop number if the loop got moved too, or clear it.

2017-12-05  Steve Ellcey  <sellcey@cavium.com>

        * config/aarch64/thunderx2-t99.md (thunderx2t99_branch): Add trap
        to reservation.
        (thunderx2t99_nothing): New insn reservation.
        (thunderx2t99_mrs): New insn reservation.
        (thunderx2t99_multiple): New insn reservation.
        (thunderx2t99_alu_basi): Add bfx to reservation.
        (thunderx2t99_fp_cmp): Add fccmps and fccmpd to reservation.

2017-12-05  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        PR target/82248
        * config/arm/arm.md (probe_stack) : Use the 'o' constraint.

2017-12-05  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-dce.c (simple_dce_from_worklist): Move and rename from
        tree-ssa-pre.c::remove_dead_inserted_code.
        * tree-ssa-dce.h: New file.
        * tree-ssa-pre.c (tree-ssa-dce.h): Include new header file.
        (remove_dead_inserted_code): Move and rename to function
        tree-ssa-dce.c::simple_dce_from_worklist.
        (pass_pre::execute): Update use.

2017-12-05  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83277
        * graphite-isl-ast-to-gimple.c (should_copy_to_new_region): Make sure
        to code-gen liveout vars.

2017-12-05  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/aarch64/aarch64-simd.md (aarch64_simd_bsldi_internal)
        (aarch64_simd_bsldi_alt): Check REG_P before GP_REGNUM_P.
        (aarch64_cm<optab>di, aarch64_cmtstdi): Add leading "&&" to
        split condition.

2017-12-05  Max Filippov  <jcmvbkbc@gmail.com>

        * config/xtensa/xtensa.c (xtensa_asan_shadow_offset): New
        function.
        (TARGET_ASAN_SHADOW_OFFSET): New macro definition.
        * config/xtensa/xtensa.h (FRAME_GROWS_DOWNWARD): Set to 1 if
        ASAN is enabled.

2017-12-05  Richard Biener  <rguenther@suse.de>

        * timevar.def (TV_TREE_RECIP, TV_TREE_SINCOS, TV_TREE_WIDEN_MUL): Add.
        * tree-ssa-math-opts.c (pass_data_cse_reciprocal): Use TV_TREE_RECIP.
        (pass_data_cse_sincos): Use TV_TREE_SINCOS.
        (pass_data_optimize_widening_mul): Use TV_TREE_WIDEN_MUL.

2017-12-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * dbxout.c (dbxout_block): Grow buf to 30 bytes.

2017-12-05  Martin Liska  <mliska@suse.cz>
            Jakub Jelinek  <jakub@redhat.com>

        * doc/invoke.texi: Document the options.
        * flag-types.h (enum sanitize_code): Add
        SANITIZE_POINTER_COMPARE and SANITIZE_POINTER_SUBTRACT.
        * ipa-inline.c (sanitize_attrs_match_for_inline_p): Add handling
        of SANITIZE_POINTER_COMPARE and SANITIZE_POINTER_SUBTRACT.
        * opts.c: Define new sanitizer options.
        * sanitizer.def (BUILT_IN_ASAN_POINTER_COMPARE): Likewise.
        (BUILT_IN_ASAN_POINTER_SUBTRACT): Likewise.

2017-12-05  Julia Koval  <julia.koval@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_AVX512VNNI_SET,
        OPTION_MASK_ISA_AVX512VNNI_UNSET): New.
        (ix86_handle_option): Handle -mavx512vnni.
        * config/i386/cpuid.h (bit_AVX512VNNI): New bit.
        * config/i386/driver-i386.c (host_detect_local_cpu): Handle new bit.
        * config/i386/i386-c (__AVX512VNNI__): New.
        * config/i386/i386.c (ix86_target_string): Handle new option.
        (ix86_valid_target_attribute_inner_p): Handle new option.
        * config/i386/i386.h (TARGET_AVX512VNNI, TARGET_AVX512VNNI_P): New.
        * config/i386/i386.opt (mavx512vnni): New option.

2017-12-01  Jan Hubicka  <hubicka@ucw.cz>

        PR target/81616
        * athlon.md: Disable for generic.
        * haswell.md: Enable for generic.
        * i386.c (ix86_sched_init_global): Add core hooks for generic.
        * x86-tune-sched.c (ix86_issue_rate): Increase issue rate for generic
        to 4.
        (ix86_adjust_cost): Move generic to haswell path.

2017-12-04  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.c (sparc_do_work_around_errata): Use mem_ref
        instead of MEM_P in a couple more places.  Fix formatting issues.

2017-12-04  Jim Wilson  <jimw@sifive.com>

        * config/riscv/riscv.c (riscv_for_each_saved_reg): Use GP_REG_LAST
        instead of GP_REG_LAST-1.
        (riscv_adjust_libcall_cfi_prologue): Likewise.
        (riscv_adjust_libcall_cri_epilogue): Likewise.
        * config/riscv/riscv.h (CALL_USED_REGISTERS): Change a6 to t6 in
        comment.

2017-12-04  Luis Machado  <luis.machado@linaro.org>

        * ipa-pure-const.c (check_decl): Add missing newline.
        (state_from_flags): Likewise.

2017-12-04  Jeff Law  <law@redhat.com>

        PR tree-optimizatin/78496
        * gimple-ssa-evrp-analyze.h
        (evrp_range_analyzer::get_vr_values): Simplify.
        * gimple-ssa-evrp-analyze.c: Corresponding changes.
        * tree-ssa-dom.c: Include alloc-pool.h, tree-vrp.h, vr-values.h
        and gimple-ssa-evrp-analyze.h.
        (dom_opt_dom_walker class): Add evrp_range_analyzer member.
        (simplify_stmt_for_jump_threading): Copy a blob of code from
        tree-vrp.c to use ranges to simplify statements.
        (dom_opt_dom_walker::before_dom_children): Call
        evrp_range_analyzer::{enter,record_ranges_from_stmt} methods.
        (dom_opt_dom_walker::after_dom_children): Similarly for
        evrp_range_analyzer::leave.
        (dom_opt_dom_walker::optimize_stmt): Use EVRP ranges to optimize
        conditionals.

        * gimple-ssa-evrp-analyze.c
        (evrp_range_analyzer::extract_range_from_stmt):  Always use
        vr_values::update_value_range so preexisting range info is
        medged with new range info, even if the new range is VR_VARYING.

2017-12-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * combine.c: Adjust comment.
        (use_crosses_set_p): Delete.
        (can_combine_p): Use modified_between_p instead of use_crosses_set_p.
        (try_combine): Ditto.

2017-12-04  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83255
        * graphite-isl-ast-to-gimple.c (translate_isl_ast_node_for):
        Re-add zero-iteration check.

2017-12-04  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/83245
        * lra.c (collect_non_operand_hard_regs): Treat clobbers of non-operand
        hard registers as earlyclobber, also if not in an asm.

2017-12-04  Segher Boessenkool  <segher@kernel.crashing.org>

        PR bootstrap/83265
        Revert
        2017-12-01  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/43871
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Set
        rs6000_cpu based on cpu_index, not tune_index.

2017-12-04  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83238
        * graphite-scop-detection.c (scop_detection::merge_sese): Make
        code match comment, rejecting invalid SESE regions.

2017-12-03  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.c (pa_legitimate_address_p): For scaled indexing,
        require base operand is a REG_POINTER prior to reload on targets
        with non-equivalent space registers.

2017-12-01  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-cp.c (ipcp_lattice<valtype>::print): Update dumping.
        (update_specialized_profile): Fix updating of counts.
        (perhaps_add_new_callers): Likewise.

2017-12-01  Jan Hubicka  <hubicka@ucw.cz>

        PR target/81616
        * x86-tune.def: Remove obsolette FIXMEs.
        (X86_TUNE_PARTIAL_FLAG_REG_STALL): Disable for generic
        (X86_TUNE_FUSE_CMP_AND_BRANCH_32, X86_TUNE_FUSE_CMP_AND_BRANCH_64,
        X86_TUNE_FUSE_CMP_AND_BRANCH_SOFLAGS, X86_TUNE_FUSE_ALU_AND_BRANCH):
        Enable for generic.
        (X86_TUNE_PAD_RETURNS): Disable for generic.

2017-12-02  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/83170
        PR tree-optimization/83241
        * gimple-ssa-store-merging.c
        (imm_store_chain_info::try_coalesce_bswap): Update vuse field from
        gimple_vuse (ins_stmt) in case it has changed.
        (imm_store_chain_info::output_merged_store): Likewise.

        * tree-chkp.c (chkp_compute_bounds_for_assignment): Handle
        POINTER_DIFF_EXPR.

        PR c++/81212
        * tree-cfg.c (pass_warn_function_return::execute): Handle
        __builtin_ubsan_handle_missing_return like __builtin_unreachable
        with BUILTINS_LOCATION.

        PR target/78643
        PR target/80583
        * expr.c (get_inner_reference): If DECL_MODE of a non-bitfield
        is BLKmode for vector field with vector raw mode, use TYPE_MODE
        instead of DECL_MODE.

        * config/i386/i386-protos.h (standard_sse_constant_opcode): Change
        last argument to rtx pointer.
        * config/i386/i386.c (standard_sse_constant_opcode): Replace X argument
        with OPERANDS.  For AVX+ 128-bit VEX encoded instructions over 256-bit
        or 512-bit.  If setting EXT_REX_SSE_REG_P, use EVEX encoded insn
        depending on the chosen ISAs.
        * config/i386/i386.md (*movxi_internal_avx512f, *movoi_internal_avx,
        *movti_internal, *movdi_internal, *movsi_internal, *movtf_internal,
        *movdf_internal, *movsf_internal): Adjust standard_sse_constant_opcode
        callers.
        * config/i386/sse.md (mov<mode>_internal): Likewise.
        * config/i386/mmx.md (*mov<mode>_internal): Likewise.

2017-12-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * doc/invoke.texi (-dp): Say that instruction cost is printed as well.

2017-12-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000-protos.h (emit_fusion_addis): Remove last two
        parameters from prototype.
        * config/rs6000/rs6000.c (emit_fusion_addis): Remove last two
        parameters.  Don't print a comment.
        (emit_fusion_gpr_load): Adjust.
        (emit_fusion_load_store): Adjust.
        * config/rs6000/rs6000.md (*fusion_p9_<mode>_constant): Adjust.
        * config/rs6000/vsx.md (two peepholes): Print the "vector load fusion"
        comment on the second line.

2017-12-01  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/43871
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Set
        rs6000_cpu based on cpu_index, not tune_index.

2017-12-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * final.c (output_asm_name): Print insn_cost.  Shorten output.  Print
        which_alternative instead of which_alternative + 1.
        (output_asm_insn): Print an extra tab if the template is short.

2017-12-01  Jim Wilson  <jimw@sifive.com>

        * common.opt (use_gnu_debug_info_extensions): Delete DWARF_DEBUG from
        comment.
        * config/vx-common.h (DWARF_DEBUGGING_INFO): Delete undef.
        * doc/tm.texi.in (PREFERRED_DEBUGGING_TYPE): Delete DWARF_DEBUG
        reference.
        * doc/tm.texi: Regenerate.

2017-12-01  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/81959
        * config/rs6000/rs6000.c (rs6000_address_for_fpconvert): Check for
        whether we can allocate pseudos before trying to fix an address.
        * config/rs6000/rs6000.md (float_<mode>si2_hw): Make sure the
        memory address is indexed or indirect.
        (floatuns_<mode>si2_hw2): Likewise.

2017-12-01  Jason Merrill  <jason@redhat.com>

        * Makefile.in (TAGS): Add c-family/*.cc.

2017-12-01  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.md (call_insn): Use %c rather than %a.
        (call_value_insn): Likewise.
        (sibcall_insn): Likewise.
        (sibcall_value_insn): Likewise.
        (movsi_aarch64): Likewise.
        (movdi_aarch64): Likewise.
        (add_losym_): Likewise.
        (ldr_got_small_): Likewise.
        (ldr_got_small_sidi): Likewise.
        (ldr_got_small_28k_): Likewise.
        (ldr_got_small_28k_sidi): Likewise.
        * config/aarch64/aarch64.c (aarch64_print_address_internal):
        Move output_addr_const to symbolic case. Add error check.

2017-12-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/predicates.md (plus16_Q_operand): New predicate.
        * config/s390/s390.md: Disable MVC merging peephole if it would
        disable operand forwarding.
        (new peephole2): Split MVCs if it would turn them into up to 2
        forwardable MVCs.

2017-12-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83232
        * tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Fix
        detection of same access. Instead of breaking the group here
        do not consider the duplicate.  Add comment explaining real fix.

2017-12-01  Jonathan Wakely  <jwakely@redhat.com>

        * doc/md.texi (Insn Splitting): Fix "central flowgraph" typo.

2017-12-01  Sudakshina Das  <sudi.das@arm.com>

        * config/arm/vfp.md (*movhf_vfp_fp16): Add conds attribute.

2017-12-01  Jakub Jelinek  <jakub@redhat.com>

        * function.h (struct function): Remove cilk_frame_decl,
        is_cilk_function and calls_cilk_spawn fields.
        * tree-inline.h (struct copy_body_data): Remove remap_var_for_cilk
        field.
        * omp-simd-clone.c (simd_clone_clauses_extract): Don't clear
        cilk_elemental field.
        * cgraph.h (struct cgraph_simd_clone): Remove cilk_elemental field.
        * target.def: Adjust comment.
        * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
        Don't test cilk_elemental.

        PR tree-optimization/83233
        * gimple-ssa-store-merging.c (nop_stats, bswap_stats): Use
        bswap_stat name for the struct.

        PR c/79153
        * tree.h (SWITCH_BREAK_LABEL_P): Define.
        * gimplify.c (collect_fallthrough_labels): Handle GIMPLE_BIND
        starting with a GIMPLE_SWITCH and ending with GIMPLE_LABEL with
        SWITCH_BREAK_LABEL_P set on the label.
        (gimplify_switch_expr): Set SWITCH_BREAK_LABEL_P on the label
        added for default case if it was missing and not all cases covered.
        Wrap GIMPLE_SWITCH and the switch_body_seq into a GIMPLE_BIND if
        switch_body_seq ends with a GIMPLE_LABEL with SWITCH_BREAK_LABEL_P
        set on the label.
        * tree-chrec.c (evolution_function_is_univariate_p): Add return true;
        to avoid -Wimplicit-fallthrough warning.
        * config/i386/i386.c (ix86_expand_special_args_builtin): Add
        FALLTHRU comment to avoid -Wimplicit-fallthrough warning.

        PR tree-optimization/83221
        * tree-ssa-reassoc.c (sort_by_operand_rank): Shift bb_rank
        down by 16.
        (init_reassoc): Formatting fix.

        PR sanitizer/81275
        * tree-cfg.c (group_case_labels_stmt): Don't optimize away
        C++ FE implicitly added __builtin_unreachable () until -Wreturn-type
        is diagnosed.

        PR sanitizer/83219
        * tree-cfg.c: Include asan.h.
        (gimple_seq_unreachable_p): Return false for -fsanitize=unreachable.

2017-12-01  Sergey Shalnov  <Sergey.Shalnov@intel.com>

        * config/i386/i386.md: Fix AVX512 register width in AVX512 instruction.

2017-12-01  Sergey Shalnov  <Sergey.Shalnov@intel.com>

        * config/i386/i386.c (standard_sse_constant_opcode): Fix wrong form for
        vpcmpeqd instruction.

2017-12-01  Sergey Shalnov  <Sergey.Shalnov@intel.com>

        * config/i386/i386.c (standard_sse_constant_opcode): Fix
        registers type for 128bit mode.

2017-11-30  Jakub Jelinek  <jakub@redhat.com>

        * spellcheck-tree.c (test_find_closest_identifier): Use ; instead
        of ;;.
        * gengtype-state.c (read_state_pair): Likewise.
        * gimple-fold.c (gimple_fold_builtin_string_compare): Likewise.
        * sel-sched-dump.c (dump_insn_rtx_1): Likewise.
        * ipa-cp.c (intersect_aggregates_with_edge): Likewise.
        * ifcvt.c (noce_try_store_flag_constants): Likewise.
        * tree-ssa-ccp.c (ccp_finalize): Likewise.
        * omp-grid.c (grid_process_kernel_body_copy): Likewise.
        * builtins.c (fold_builtin_3): Likewise.
        * graphite-scop-detection.c
        (scop_detection::stmt_has_simple_data_refs_p): Likewise.
        * hsa-gen.c (hsa_function_representation::hsa_function_representation):
        Likewise.

2017-12-01  Maxim Ostapenko  <m.ostapenko@samsung.com>

        PR sanitizer/81697
        * asan.c (asan_protect_global): Add new ignore_decl_rtl_set_p
        parameter. Return true if ignore_decl_rtl_set_p is true and other
        conditions are satisfied.
        * asan.h (asan_protect_global): Add new parameter.
        * varasm.c (categorize_decl_for_section): Pass true as second parameter
        to asan_protect_global calls.

2017-11-30  Jim Wilson  <jimw@sifive.com>

        * doc/invoke.texi (RISC-V Options): Delete nonexistent -mmemcpy and
        -mno-memcpy options.  For -mplt, -mfdiv, -mdiv, -msave-restore, and
        -mstrict-align, add info on default value.  Delete redundant lines for
        -mabi.  Add missing -mexplicit-relocs docs.

2017-11-30  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (trap): New pattern.

2017-11-30  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (hwloop_optimize): Prevent the last ZOL
        instruction to end into a delay slot.
        * config/arc/arc.md (cond_delay_insn): Check if the instruction
        can be placed into a delay slot against reg_note.

2017-11-30  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (hwloop_optimize): Update hw-loop's end/start
        labels number of usages.

2017-11-30  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_cannot_substitue_mem_equiv_p): New
        function.
        (TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV_P): Define.

2017-11-30  Jakub Jelinek  <jakub@redhat.com>

        PR target/83210
        * internal-fn.c (expand_mul_overflow): Optimize unsigned
        multiplication by power of 2 constant into two shifts + comparison.

2017-11-30  Jan Hubicka  <hubicka@ucw.cz>

        PR target/81616
        * config/i386/x86-tune-costs.h (generic_cost): Revise for modern CPUs.

2017-11-30  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83202
        * tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Add
        allow_peel argument and guard peeling.
        (canonicalize_loop_induction_variables): Likewise.
        (canonicalize_induction_variables): Pass false.
        (tree_unroll_loops_completely_1): Pass unroll_outer to disallow
        peeling from cunrolli.

2017-11-29  Segher Boessenkool  <segher@kernel.crashing.org>

        * combine.c (try_combine): Print a message to dump file whenever
        I0, I1, or I2 cannot be combined into I3.

2017-11-29  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/83156
        PR rtl-optimization/82621
        * combine.c (try_combine): Don't split an I2 if one of the dests is
        set again before I3.  Allow unused dests.

2017-11-29  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (*add<mode>3_carry_in_internal2): New.

2017-11-29  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/80818
        * lra.c (collect_non_operand_hard_regs): New arg insn.  Pass it
        recursively.  Use insn code for clobber.
        (lra_set_insn_recog_data): Pass the new arg to
        collect_non_operand_hard_regs.
        (add_regs_to_insn_regno_info): Pass insn instead of uid.  Use insn
        code for clobber.
        (lra_update_insn_regno_info): Pass insn to
        add_regs_to_insn_regno_info.

2017-11-29  Jim Wilson  <jimw@sifive.com>
            Andrew Waterman  <andrew@sifive.com>

        * config/riscv/riscv.c (SINGLE_SHIFT_COST): New.
        (riscv_rtx_costs): Case ZERO_EXTRACT, match new pattern, and return
        SINGLE_SHIFT_COST.  Case LT and ZERO_EXTEND, likewise.  Case ASHIFT,
        use SINGLE_SHIFT_COST.
        * config/riscv/riscv.md (lshrsi3_zero_extend_1): New.
        (lshrsi3_zero_extend_2, lshrsi3_zero_extend_3): New.

2017-11-29  Julia Koval  <julia.koval@intel.com>

        * config/i386/avx512vbmi2intrin.h (_mm512_shldv_epi16,
        _mm512_mask_shldv_epi16, _mm512_maskz_shldv_epi16, _mm512_shldv_epi32,
        _mm512_mask_shldv_epi32, _mm512_maskz_shldv_epi32, _mm512_shldv_epi64,
        _mm512_mask_shldv_epi64, _mm512_maskz_shldv_epi64): New intrinsics.
        * config/i386/avx512vbmi2vlintrin.h (_mm256_shldv_epi16,
        _mm256_mask_shldv_epi16, _mm256_maskz_shldv_epi16, _mm256_shldv_epi32,
        _mm256_mask_shldv_epi32, _mm256_maskz_shldv_epi32, _mm256_shldv_epi64,
        _mm256_mask_shldv_epi64, _mm256_maskz_shldv_epi64, _mm_shldv_epi16,
        _mm_mask_shldv_epi16, _mm_maskz_shldv_epi16, _mm_shldv_epi32,
        _mm_mask_shldv_epi32, _mm_maskz_shldv_epi32, _mm_shldv_epi64,
        _mm_mask_shldv_epi64, _mm_maskz_shldv_epi64): Ditto.
        * config/i386/i386-builtin.def (__builtin_ia32_vpshldv_v32hi,
        __builtin_ia32_vpshldv_v32hi_mask, __builtin_ia32_vpshldv_v32hi_maskz,
        __builtin_ia32_vpshldv_v16hi, __builtin_ia32_vpshldv_v16hi_mask,
        __builtin_ia32_vpshldv_v16hi_maskz, __builtin_ia32_vpshldv_v8hi,
        __builtin_ia32_vpshldv_v8hi_mask, __builtin_ia32_vpshldv_v8hi_maskz,
        __builtin_ia32_vpshldv_v16si, __builtin_ia32_vpshldv_v16si_mask,
        __builtin_ia32_vpshldv_v16si_maskz, __builtin_ia32_vpshldv_v8si,
        __builtin_ia32_vpshldv_v8si_mask, __builtin_ia32_vpshldv_v8si_maskz,
        __builtin_ia32_vpshldv_v4si, __builtin_ia32_vpshldv_v4si_mask,
        __builtin_ia32_vpshldv_v4si_maskz, __builtin_ia32_vpshldv_v8di,
        __builtin_ia32_vpshldv_v8di_mask, __builtin_ia32_vpshldv_v8di_maskz,
        __builtin_ia32_vpshldv_v4di, __builtin_ia32_vpshldv_v4di_mask,
        __builtin_ia32_vpshldv_v4di_maskz, __builtin_ia32_vpshldv_v2di,
        __builtin_ia32_vpshldv_v2di_mask,
        __builtin_ia32_vpshldv_v2di_maskz): New builtins.
        * config/i386/sse.md (vpshldv_<mode>, vpshldv_<mode>_mask,
        vpshldv_<mode>_maskz, vpshldv_<mode>_maskz_1): New patterns.

2017-11-29  Julia Koval  <julia.koval@intel.com>

        * config/i386/avx512vbmi2intrin.h (_mm512_shrdv_epi16,
        _mm512_mask_shrdv_epi16, _mm512_maskz_shrdv_epi16, _mm512_shrdv_epi32,
        _mm512_mask_shrdv_epi32, _mm512_maskz_shrdv_epi32, _mm512_shrdv_epi64,
        _mm512_mask_shrdv_epi64, _mm512_maskz_shrdv_epi64): New intrinsics.
        * config/i386/avx512vbmi2vlintrin.h (_mm256_shrdv_epi16,
        _mm256_mask_shrdv_epi16, _mm256_maskz_shrdv_epi16, _mm256_shrdv_epi32,
        _mm256_mask_shrdv_epi32, _mm256_maskz_shrdv_epi32, _mm256_shrdv_epi64,
        _mm256_mask_shrdv_epi64, _mm256_maskz_shrdv_epi64, _mm_shrdv_epi16,
        _mm_mask_shrdv_epi16, _mm_maskz_shrdv_epi16, _mm_shrdv_epi32,
        _mm_mask_shrdv_epi32, _mm_maskz_shrdv_epi32, _mm_shrdv_epi64,
        _mm_mask_shrdv_epi64, _mm_maskz_shrdv_epi64): Ditto.
        * config/i386/i386-builtin-types.def (V32HI_FTYPE_V32HI_V32HI_V32HI,
        V32HI_FTYPE_V32HI_V32HI_V32HI_INT, V16HI_FTYPE_V16HI_V16HI_V16HI_INT,
        V8HI_FTYPE_V8HI_V8HI_V8HI_INT, V8SI_FTYPE_V8SI_V8SI_V8SI_INT,
        V4SI_FTYPE_V4SI_V4SI_V4SI_INT, V8DI_FTYPE_V8DI_V8DI_V8DI,
        V8DI_FTYPE_V8DI_V8DI_V8DI_INT, V4DI_FTYPE_V4DI_V4DI_V4DI_INT,
        V16SI_FTYPE_V16SI_V16SI_V16SI, V16SI_FTYPE_V16SI_V16SI_V16SI_INT,
        V2DI_FTYPE_V2DI_V2DI_V2DI_INT): New types.
        * config/i386/i386.c (ix86_expand_args_builtin): Handle new types.
        * config/i386/sse.md (vpshrdv_<mode>, vpshrdv_<mode>_mask,
        vpshrdv_<mode>_maskz, vpshrdv_<mode>_maskz_1): New pattern.

2017-11-29  Daniel Cederman  <cederman@gaisler.com>

        * config/sparc/sparc.c (sparc_do_work_around_errata): Treat the
        movsi_pic_gotdata_op instruction as a load for the UT699 errata
        workaround.

2017-11-29  Martin Aberg  <maberg@gaisler.com>

        * config/sparc/sparc.md (divdf3_fix): Add NOP and adjust length
        to prevent b2bst errata sequence.
        (sqrtdf2_fix): Likewise.

2017-11-29  Daniel Cederman  <cederman@gaisler.com>

        * config/sparc/sparc.c (fpop_reg_depend_p): New function.
        (div_sqrt_insn_p): New function.
        (sparc_do_work_around_errata): Insert NOP instructions to
        prevent sequences that could trigger the TN-0013 errata for
        certain LEON3 processors.
        (pass_work_around_errata::gate): Also test sparc_fix_lost_divsqrt.
        (sparc_option_override): Set sparc_fix_lost_divsqrt appropriately.
        * config/sparc/sparc.md (fix_lost_divsqrt): New attribute.
        (in_branch_delay): Prevent div and sqrt in delay slot if
        fix_lost_divsqrt.
        * config/sparc/sparc.opt (sparc_fix_lost_divsqrt): New variable.

2017-11-29  Daniel Cederman  <cederman@gaisler.com>

        * config/sparc/sparc.c (atomic_insn_p): New function.
        (sparc_do_work_around_errata): Insert NOP instructions to
        prevent sequences that could trigger the TN-0010 errata for
        UT700.
        * config/sparc/sync.md (atomic_compare_and_swap_leon3_1): Make
        instruction referable in atomic_insns_p.

2017-11-29  Daniel Cederman  <cederman@gaisler.com>

        * config/sparc/sync.md (swapsi): 16-byte align if sparc_fix_gr712rc.
        (atomic_compare_and_swap_leon3_1): Likewise.
        (ldstub): Likewise.

2017-11-29  Daniel Cederman  <cederman@gaisler.com>

        * config/sparc/sparc.c (fpop_insn_p): New function.
        (sparc_do_work_around_errata): Insert NOP instructions to
        prevent sequences that could trigger the TN-0012 errata for
        GR712RC.
        (pass_work_around_errata::gate): Also test sparc_fix_gr712rc.
        * config/sparc/sparc.md (fix_gr712rc): New attribute.
        (in_branch_annul_delay): Prevent floating-point instructions
        in delay slot of annulled integer branch.

2017-11-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83202
        * tree-vect-slp.c (scalar_stmts_set_t): New typedef.
        (bst_fail): Use it.
        (vect_analyze_slp_cost_1): Add visited set, do not account SLP
        nodes vectorized to the same stmts multiple times.
        (vect_analyze_slp_cost): Allocate a visited set and pass it down.
        (vect_analyze_slp_instance): Adjust.
        (scalar_stmts_to_slp_tree_map_t): New typedef.
        (vect_schedule_slp_instance): Add a map recording the SLP node
        representing the vectorized stmts for a set of scalar stmts.
        Avoid code-generating redundancies.
        (vect_schedule_slp): Allocate map and pass it down.

2017-11-29  Nathan Sidwell  <nathan@acm.org>

        PR c++/83187
        * tree.c (build_complex_type): Fix canonicalization.  Only fill in
        type if it is new.

2017-11-29  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_print_operand): Add new
        cases for printing LDP/STP memory addresses.
        (aarch64_print_address_internal): Renamed from
        aarch64_print_operand_address, added parameter, add Pmode check.
        (aarch64_print_ldpstp_address): New function for LDP/STP addresses.
        (aarch64_print_operand_address): Indirect to
        aarch64_print_address_internal.
        * config/aarch64/aarch64-simd.md (store_pair_lanes): Use new
        'y' operand output specifier.

2017-11-29  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/83185
        * tree.c (build_simple_mem_ref_loc): Handle
        get_addr_base_and_unit_offset returning a MEM_REF.

        PR middle-end/80929
        * rtlanal.c (seq_cost): For non-single_set insns try to use insn_cost.

        PR target/80819
        * config/i386/sse.md (vec_concatv2di): Remove * from (=Yr,0,*rm)
        alternative.

2017-11-28  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c (layout::print_trailing_fixits): Handle
        m_x_offset.
        (layout::move_to_column): Likewise.

2017-11-28  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/81275
        * tree.c (block_may_fallthru): Return false if SWITCH_ALL_CASES_P
        is set on SWITCH_EXPR and !block_may_fallthru (SWITCH_BODY ()).

2017-11-28  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
            Martin Jambor  <mjambor@suse.cz>

        PR ipa/82808
        * tree.h (expr_type_first_operand_type_p): Declare
        * tree.c (expr_type_first_operand_type_p): New function.
        * ipa-prop.h (ipa_get_type): Allow i to be out of bounds.
        (ipa_value_from_jfunc): Adjust declaration.
        * ipa-cp.c (ipa_get_jf_pass_through_result): New parameter RES_TYPE.
        Use it as result type for arithmetics, unless it is NULL in which case
        be more conservative.
        (ipa_value_from_jfunc): New parameter PARM_TYPE, pass it to
        ipa_get_jf_pass_through_result.
        (propagate_vals_across_pass_through): Likewise.
        (propagate_scalar_across_jump_function): New parameter PARM_TYPE, pass
        is to propagate_vals_across_pass_through.
        (propagate_constants_across_call): Pass PARM_TYPE to
        propagate_scalar_across_jump_function.
        (find_more_scalar_values_for_callers_subset): Pass parameter type to
        ipa_value_from_jfunc.
        (cgraph_edge_brings_all_scalars_for_node): Likewise.
        * ipa-fnsummary.c (evaluate_properties_for_edge): Renamed parms_info
        to caller_parms_info, pass parameter type to ipa_value_from_jfunc.
        * ipa-prop.c (try_make_edge_direct_simple_call): New parameter
        target_type, pass it to ipa_value_from_jfunc.
        (update_indirect_edges_after_inlining): Pass parameter type to
        try_make_edge_direct_simple_call.

2017-11-28  Jeff Law  <law@redhat.com>

        * gimple-ssa-evrp-analyze.c
        (evrp_range_analyzer::record_ranges_from_phis): Only use SCEV to
        refine ranges if scev_initialized_p returns true.
        * vr-values.c (vr_values::extract_range_from_phi_node): Likewise.

2017-11-28  Julia Koval  <julia.koval@intel.com>

        * config/i386/avx512vbmi2intrin.h (_mm512_shrdi_epi16,
        _mm512_mask_shrdi_epi16, _mm512_maskz_shrdi_epi16, _mm512_shrdi_epi32,
        _mm512_mask_shrdi_epi32, _mm512_maskz_shrdi_epi32, _mm512_shrdi_epi64,
        _mm512_mask_shrdi_epi64, _mm512_maskz_shrdi_epi64): New intrinsics.
        * config/i386/avx512vbmi2vlintrin.h (_mm256_shrdi_epi16,
        _mm256_mask_shrdi_epi16, _mm256_maskz_shrdi_epi16,
        _mm256_mask_shrdi_epi32, _mm256_maskz_shrdi_epi32, _mm256_shrdi_epi32,
        _mm256_mask_shrdi_epi64, _mm256_maskz_shrdi_epi64, _mm256_shrdi_epi64,
        _mm_mask_shrdi_epi16, _mm_maskz_shrdi_epi16, _mm_shrdi_epi16,
        _mm_mask_shrdi_epi32, _mm_maskz_shrdi_epi32, _mm_shrdi_epi32,
        _mm_mask_shrdi_epi64, _mm_maskz_shrdi_epi64, _mm_shrdi_epi64): Ditto.
        * config/i386/i386-builtin.def (__builtin_ia32_vpshrd_v32hi,
        __builtin_ia32_vpshrd_v32hi_mask, __builtin_ia32_vpshrd_v16hi,
        __builtin_ia32_vpshrd_v16hi_mask, __builtin_ia32_vpshrd_v8hi,
        __builtin_ia32_vpshrd_v8hi_mask, __builtin_ia32_vpshrd_v16si,
        __builtin_ia32_vpshrd_v16si_mask, __builtin_ia32_vpshrd_v8si,
        __builtin_ia32_vpshrd_v8si_mask, __builtin_ia32_vpshrd_v4si,
        __builtin_ia32_vpshrd_v4si_mask, __builtin_ia32_vpshrd_v8di,
        __builtin_ia32_vpshrd_v8di_mask, __builtin_ia32_vpshrd_v4di,
        __builtin_ia32_vpshrd_v4di_mask, __builtin_ia32_vpshrd_v2di,
        __builtin_ia32_vpshrd_v2di_mask): New builtins.
        * config/i386/sse.md (vpshrd_<mode><mask_name>): New pattern.

2017-11-28  Julia Koval  <julia.koval@intel.com>

        * config/i386/avx512vbmi2intrin.h (_mm512_shldi_epi16,
        _mm512_mask_shldi_epi16, _mm512_maskz_shldi_epi16, _mm512_shldi_epi32,
        _mm512_mask_shldi_epi32, _mm512_maskz_shldi_epi32, _mm512_shldi_epi64,
        _mm512_mask_shldi_epi64, _mm512_maskz_shldi_epi64): New intrinsics.
        * config/i386/avx512vbmi2vlintrin.h (_mm256_shldi_epi16,
        _mm256_mask_shldi_epi16, _mm256_maskz_shldi_epi16,
        _mm256_mask_shldi_epi32, _mm256_maskz_shldi_epi32, _mm256_shldi_epi32,
        _mm256_mask_shldi_epi64, _mm256_maskz_shldi_epi64, _mm256_shldi_epi64,
        _mm_mask_shldi_epi16, _mm_maskz_shldi_epi16, _mm_shldi_epi16,
        _mm_mask_shldi_epi32, _mm_maskz_shldi_epi32, _mm_shldi_epi32,
        _mm_mask_shldi_epi64, _mm_maskz_shldi_epi64, _mm_shldi_epi64): Ditto.
        * config/i386/i386-builtin-types.def (V32HI_FTYPE_V32HI_V32HI_INT,
        V32HI_FTYPE_V32HI_V32HI_INT_V32HI_INT, V16SI_FTYPE_V16SI_V16SI_INT,
        V16SI_FTYPE_V16SI_V16SI_INT_V16SI_INT,
        V8DI_FTYPE_V8DI_V8DI_INT_V8DI_INT, V8SI_FTYPE_V8SI_V8SI_INT_V8SI_INT,
        V16HI_FTYPE_V16HI_V16HI_INT_V16HI_INT,
        V4DI_FTYPE_V4DI_V4DI_INT_V4DI_INT,
        V8HI_FTYPE_V8HI_V8HI_INT_V8HI_INT,
        V4SI_FTYPE_V4SI_V4SI_INT_V4SI_INT,
        V2DI_FTYPE_V2DI_V2DI_INT_V2DI_INT): New types.
        * config/i386/i386-builtin.def (__builtin_ia32_vpshld_v32hi,
        __builtin_ia32_vpshld_v32hi_mask, __builtin_ia32_vpshld_v16hi,
        __builtin_ia32_vpshld_v16hi_mask, __builtin_ia32_vpshld_v8hi,
        __builtin_ia32_vpshld_v8hi_mask, __builtin_ia32_vpshld_v16si,
        __builtin_ia32_vpshld_v16si_mask, __builtin_ia32_vpshld_v8si,
        __builtin_ia32_vpshld_v8si_mask, __builtin_ia32_vpshld_v4si,
        __builtin_ia32_vpshld_v4si_mask, __builtin_ia32_vpshld_v8di,
        __builtin_ia32_vpshld_v8di_mask, __builtin_ia32_vpshld_v4di,
        __builtin_ia32_vpshld_v4di_mask, __builtin_ia32_vpshld_v2di,
        __builtin_ia32_vpshld_v2di_mask): New builtins.
        * config/i386/i386.c (ix86_expand_args_builtin): Handle new types.
        * config/i386/sse.md (vpshld_<mode><mask_name>): New pattern.

2017-11-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80776
        * gimple-ssa-evrp-analyze.h (evrp_range_analyzer::set_ssa_range_info):
        Declare.
        * gimple-ssa-evrp-analyze.c (evrp_range_analyzer::set_ssa_range_info):
        New function.
        (evrp_range_analyzer::record_ranges_from_incoming_edges):
        If the incoming edge is an effective fallthru because the other
        edge only reaches a __builtin_unreachable () then record ranges
        derived from the controlling condition in SSA info.
        (evrp_range_analyzer::record_ranges_from_phis): Use set_ssa_range_info.
        (evrp_range_analyzer::record_ranges_from_stmt): Likewise.

2017-11-28  Olivier Hainque  <hainque@adacore.com>

        * Makefile.in (SELFTEST_FLAGS): Use nul instead of /dev/null
        on mingw build hosts.

2017-11-28  Jakub Jelinek  <jakub@redhat.com>

        PR debug/81307
        * dbxout.c (dbx_block_with_cold_children): Fix function comment.

2017-11-28  Richard Biener  <rguenther@suse.de>

        PR middle-end/83141
        * gimple-fold.c (gimple_fold_builtin_memory_op): For aggregate
        copies generated from memcpy use a character array as reference
        type.

2017-11-28  Julia Koval  <julia.koval@intel.com>
            Sebastian Peryt  <sebastian.peryt@intel.com>

        * Makefile.in (cilkplus.def, cilk-builtins.def, c-family/cilk.o,
        c-family/c-cilkplus.o, c-family/array-notation-common.o,
        cilk-common.o, cilk.h, cilk-common.c): Remove.
        * builtin-types.def
        (BT_FN_INT_PTR_PTR_PTR_FTYPE_BT_INT_BT_PTR_BT_PTR_BT_PTR): Remove.
        * builtins.c (is_builtin_name): Remove cilkplus condition.
        (BUILT_IN_CILK_DETACH, BUILT_IN_CILK_POP_FRAME): Remove.
        * builtins.def (DEF_CILK_BUILTIN_STUB, DEF_CILKPLUS_BUILTIN,
        cilk-builtins.def, cilkplus.def): Remove.
        * cif-code.def (CILK_SPAWN): Remove.
        * cilk-builtins.def: Delete.
        * cilk-common.c: Ditto.
        * cilk.h: Ditto.
        * cilkplus.def: Ditto.
        * config/darwin.h (fcilkplus): Delete.
        * cppbuiltin.c: Ditto.
        * doc/extend.texi: Remove cilkplus doc.
        * doc/generic.texi: Ditto.
        * doc/invoke.texi: Ditto.
        * doc/passes.texi: Ditto.
        * gcc.c (fcilkplus): Remove.
        * gengtype.c (cilk.h): Remove.
        * gimple-pretty-print.c (dump_gimple_omp_for): Remove cilkplus
        support.
        * gimple.h (GF_OMP_FOR_KIND_CILKFOR, GF_OMP_FOR_KIND_CILKSIMD):
        Remove.
        * gimplify.c (gimplify_return_expr, maybe_fold_stmt,
        gimplify_call_expr,
        is_gimple_stmt, gimplify_modify_expr, gimplify_scan_omp_clauses,
        gimplify_adjust_omp_clauses, gimplify_omp_for, gimplify_expr): Remove
        cilkplus conditions.
        * ipa-fnsummary.c (ipa_dump_fn_summary, compute_fn_summary,
        inline_read_section): Ditto.
        * ipa-inline-analysis.c (cilk.h): Remove.
        * ira.c (ira_setup_eliminable_regset): Remove cilkplus support.
        * lto-wrapper.c (merge_and_complain, append_compiler_options,
        append_linker_options): Remove condition for fcilkplus.
        * lto/lto-lang.c (cilk.h): Remove.
        (lto_init): Remove condition for fcilkplus.
        * omp-expand.c (expand_cilk_for_call): Delete.
        (expand_omp_taskreg, expand_omp_for_static_chunk,
        expand_omp_for): Remove cilkplus
        conditions.
        (expand_cilk_for): Delete.
        * omp-general.c (omp_extract_for_data): Remove cilkplus support.
        * omp-low.c (scan_sharing_clauses, create_omp_child_function,
        execute_lower_omp, diagnose_sb_0): Ditto.
        * omp-simd-clone.c (simd_clone_clauses_extract): Ditto.
        * tree-core.h (OMP_CLAUSE__CILK_FOR_COUNT_): Delete.
        * tree-nested.c: Ditto.
        * tree-pretty-print.c (dump_omp_clause): Remove cilkplus support.
        (dump_generic_node): Ditto.
        * tree.c (OMP_CLAUSE__CILK_FOR_COUNT_): Delete.
        * tree.def (cilk_simd, cilk_for, cilk_spawn_stmt, cilk_sync_stmt):
        Delete.
        * tree.h (CILK_SPAWN_FN, EXPR_CILK_SPAWN): Delete.

2017-11-28  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/aarch64/aarch64.md (div<mode>3): Change check to TARGET_FLOAT.
        * config/aarch64/aarch64.c (aarch64_emit_approx_div): Add early exit
        for vector mode and !TARGET_SIMD.

2017-11-28  Jakub Jelinek  <jakub@redhat.com>

        * tree.def (SWITCH_EXPR): Change from 3 operand to 2 operand tree.
        Adjust comment.
        * tree.h (SWITCH_LABELS): Remove.
        * gimplify.c (gimplify_switch_expr): Don't test SWITCH_LABELS,
        assert SWITCH_BODY is non-NULL.
        * tree-pretty-print.c (dump_generic_node): Remove SWITCH_LABELS
        handling.
        * tree.c (block_may_fallthru): Always return true; for SWITCH_EXPR.

        PR tree-optimization/80788
        * match.pd (X +- C1 CMP C2 -> X CMP C2 -+ C1): If res
        has TREE_OVERFLOW set, call drop_tree_overflow.

2017-11-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83158
        * tree-vrp.c (intersect_ranges): Prefer ~[0, 0] in a few more cases.

2017-11-28  Segher Boessenkool  <segher@kernel.crashing.org>

        PR 81288/target
        * config/rs6000/rs6000.c (rs6000_rtx_costs): Do not handle
        TARGET_ISEL && !TARGET_MFCRF differently.  Simplify code.

2017-11-27  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (<code><GPR:mode><GPR2:mode>2_isel): Change
        LT/GT/LTU/GTU to LE/GE/LEU/GEU where possible.

2017-11-27  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR middle_end/82333
        * varasm.c (compare_constant): Take the mode of the constants into
        account when comparing floating point constants.

2017-11-27  Gerald Pfeifer  <gerald@pfeifer.com>

        * hash-set.h (DEFINE_DEBUG_HASH_SET): Remove static qualifier
        from explicit instantiation of debug_helper.
        * vec.h (DEFINE_DEBUG_VEC): Ditto.

2017-11-27  Richard Biener  <rguenther@suse.de>

        * gimple-fold.c (gimple_fold_builtin_memory_op): Remove dead code,
        refactor a bit.

2017-11-27  Richard Biener  <rguenther@suse.de>

        * tree.c (wide_int_to_tree): Free discarded INTEGER_CST.
        (type_hash_canon): Also clear int_cst_hash_table entry for
        TYPE_MIN/MAX_VALUE.
        (build_nonstandard_integer_type): Hash all TYPE_MAX_VALUEs.

2017-11-27  Tamar Christina  <tamar.christina@arm.com>

        * doc/extend.texi: Add -A suffix (ARMv8*-A, ARMv7-A).
        * doc/invoke.texi: Add -A suffix (ARMv8*-A, ARMv7-A).
        * doc/sourcebuild.texi: Add -A suffix (ARMv8*-A, ARMv7-A).

2017-11-27  Markus Trippelsdorf  <markus@trippelsdorf.de>

        * hash-map.h (gt_cleare_cache): Avoid UB.

2017-11-27  Eric Botcazou  <ebotcazou@adacore.com>

        * cfgloop.h (struct loop): Document usage of USHRT_MAX for unroll.
        * loop-unroll.c (decide_unroll_constant_iterations): Implement it.
        (decide_unroll_runtime_iterations): Likewise.
        (decide_unroll_stupid): Likewise.

2017-11-27  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>

        PR target/83109
        * config/i386/i386.md: Add a loop with incssp.

2017-11-27  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/81248
        * tree-sra.c (splice_param_accesses): Remove size check.
        (decide_one_param_reduction): Fix size check.
        * gimple-pretty-print.c (dump_profile): Silence warning.
        * params.def (PARAM_IPA_SRA_PTR_GROWTH_FACTOR): Adjust description.

2017-11-27  Jakub Jelinek  <jakub@redhat.com>

        PR debug/81307
        * dbxout.c (lastlineno): New variable.
        (dbx_debug_hooks): Use dbxout_switch_text_section as
        switch_text_section debug hook.
        (dbxout_function_end): Switch to current_function_section
        rather than function_section.  If crtl->has_bb_partition,
        output just one N_FUN, depending on in_cold_section_p.
        (dbxout_source_line): Remember last lineno in lastlineno.
        (dbxout_switch_text_section): New function.
        (dbxout_function_decl): Adjust dbxout_block caller.
        (dbx_block_with_cold_children): New function.
        (dbxout_block): Return true if any LBRAC/RBRAC have been
        emitted.  Use dbx_block_with_cold_children at depth == 0
        in second partition.  Add PARENT_BLOCKNUM argument, pass
        it optionally adjusted to children.  Output LBRAC/RBRAC
        around recursive call only if the block is in the current
        partition, if not and anything was output, emit empty
        range LBRAC/RBRAC.
        * final.c (final_scan_insn): Compute cold_function_name
        before calling switch_text_section debug hook.  Call
        that hook even if dwarf2out_do_frame if not emitting
        dwarf debug info.

        PR target/83100
        * varasm.c (bss_initializer_p): Return true for DECL_COMMON
        TREE_READONLY decls.

2017-11-27  Markus Trippelsdorf  <markus@trippelsdorf.de>

        PR rtl-optimization/82488
        * expr.c (fixup_args_size_notes): Avoid signed integer overflow.

2017-11-26  Julia Koval  <julia.koval@intel.com>

        * config/i386/i386.c (processor_target_table): Add skylake_cost for
        skylake-avx512.
        * config/i386/x86-tune-costs.h (skylake_memcpy, skylake_memset,
        skylake_cost): New.

2017-11-26  Julia Koval  <julia.koval@intel.com>

        * config/i386/driver-i386.c (host_detect_local_cpu):
        Detect skylake-avx512.

2017-11-26  Julia Koval  <julia.koval@intel.com>

        * config.gcc: Add -march=cannonlake.
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect cannonlake.
        * config/i386/i386-c.c (ix86_target_macros_internal): Handle cannonlake.
        * config/i386/i386.c (processor_costs): Add m_CANNONLAKE.
        (PTA_CANNONLAKE): New.
        (processor_target_table): Add cannonlake.
        (ix86_option_override_internal): Ditto.
        (fold_builtin_cpu): Ditto.
        (get_builtin_code_for_version): Handle cannonlake.
        (M_INTEL_COREI7_CANNONLAKE): New.
        * config/i386/i386.h (TARGET_CANNONLAKE, PROCESSOR_CANNONLAKE): New.
        * doc/invoke.texi: Add -march=cannonlake.

2017-11-14  Boris Kolpackov  <boris@codesynthesis.com>

        * plugin.c (add_new_plugin): Use platform-specific library extensions.
        (try_init_one_plugin): Alternative implementation for MinGW.
        * Makefile.in (plugin_implib): New.
        (gengtype-lex.c): Fix broken AIX workaround.
        * configure: Regenerate.
        * doc/plugins.texi: Document support for MinGW.

2017-11-25  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/81553
        * combine.c (simplify_if_then_else): In (if_then_else COND (OP Z C1) Z)
        to (OP Z (mult COND (C1 * STORE_FLAG_VALUE))) optimization, if OP
        is a shift where C1 has different mode than the whole shift, use C1's
        mode for MULT rather than the shift's mode.

        PR target/82848
        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Don't fold
        builtins not enabled in the currently selected ISA.

2017-11-24  Jackson Woodruff  <jackson.woodruff@arm.com>

        PR tree-optimization/71026
        * tree-ssa-math-opts (is_division_by_square, is_square_of): New.
        (insert_reciprocals): Change to insert reciprocals before a division
        by a square and to insert the square of a reciprocal.
        (execute_cse_reciprocals_1): Change to consider division by a square.
        (register_division_in): Add importance parameter.

2017-11-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82402
        * tree-vect-loop-manip.c (create_lcssa_for_virtual_phi): Properly
        set SSA_NAME_OCCURS_IN_ABNORMAL_PHI.

2017-11-24  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (0-ptr): New transformation.

2017-11-24  Jan Hubicka  <hubicka@ucw.cz>

        PR bootstrap/83015
        * ipa-inline.c (inline_small_functions): Set current badnes correctly
        when skipping checking.

2017-11-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83128
        * tree-ssa-sccvn.c (fully_constant_vn_reference_p): Handle STRING_CSTs.
        (vn_reference_lookup_3): Likewise.

2017-11-24  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/83014
        * ubsan.c (ubsan_type_descriptor): Use pp_unsigned_wide_integer
        instead of pp_printf with HOST_WIDE_INT_PRINT_DEC.  Avoid calling
        tree_to_uhwi twice.

        * tree-object-size.c (pass_through_call): Use gimple_call_return_flags
        ERF_RETURN*ARG* for builtins other than BUILT_IN_ASSUME_ALIGNED,
        check for the latter with gimple_call_builtin_p.  Do not handle
        BUILT_IN_STPNCPY_CHK which is not a pass through call.

2017-11-24  Christophe Lyon  <christophe.lyon@linaro.org>

        * config/arm/arm_neon.h: Fix pragma GCC push_options before
        vdot_u32.

2017-11-23  Julia Koval  <julia.koval@intel.com>

        * config/i386/avx512vbmi2intrin.h (_mm512_mask_expand_epi8,
        _mm512_maskz_expand_epi8, _mm512_mask_expandloadu_epi8,
        _mm512_maskz_expandloadu_epi8, _mm512_mask_expand_epi16,
        _mm512_maskz_expand_epi16, _mm512_mask_expandloadu_epi16,
        _mm512_maskz_expandloadu_epi16): New intrinsics.
        * config/i386/avx512vbmi2vlintrin.h (_mm_mask_expand_epi8,
        _mm_maskz_expand_epi8, _mm_mask_expandloadu_epi8,
        _mm_maskz_expandloadu_epi8, _mm_mask_expand_epi16,
        _mm_maskz_expand_epi16, _mm_mask_expandloadu_epi16,
        _mm_maskz_expandloadu_epi16, _mm256_mask_expand_epi16,
        _mm256_maskz_expand_epi16, _mm256_mask_expandloadu_epi16,
        _mm256_maskz_expandloadu_epi16, _mm256_mask_expand_epi8,
        _mm256_maskz_expand_epi8, _mm256_mask_expandloadu_epi8,
        _mm256_maskz_expandloadu_epi8): New intrinsics.
        * config/i386/i386-builtin-types.def (V64QI_FTYPE_PCV64QI_V64QI_UDI,
        V32HI_FTYPE_PCV32HI_V32HI_USI, V32QI_FTYPE_PCV32QI_V32QI_USI,
        V16HI_FTYPE_PCV16HI_V16HI_UHI, V16QI_FTYPE_PCV16QI_V16QI_UHI,
        V8HI_FTYPE_PCV8HI_V8HI_UQI): New types.
        * config/i386/i386.c (ix86_expand_special_args_builtin): Use new types.
        * config/i386/sse.md (VI248_VLBW): New iterator.
        (expand<mode>_mask, expand<mode>_maskz): New patterns.

2017-11-23  Julia Koval  <julia.koval@intel.com>

        * config.gcc (avx512vbmi2intrin.h, avx512vbmi2vlintrin): New headers.
        * config/i386/avx512vbmi2intrin.h (_mm512_mask_compress_epi8,
        _mm512_maskz_compress_epi8, _mm512_mask_compressstoreu_epi8,
        _mm512_mask_compress_epi16, _mm512_maskz_compress_epi16,
        _mm512_mask_compressstoreu_epi16): New.
        * config/i386/avx512vbmi2vlintrin.h (_mm_mask_compress_epi8,
        _mm_maskz_compress_epi8, _mm256_mask_compressstoreu_epi16,
        _mm_mask_compress_epi16, _mm_maskz_compress_epi16,
        _mm256_mask_compress_epi16, _mm256_maskz_compress_epi16,
        _mm_mask_compressstoreu_epi8, _mm_mask_compressstoreu_epi16,
        _mm256_mask_compress_epi8, _mm256_maskz_compress_epi8,
        _mm256_mask_compressstoreu_epi8): New.
        * config/i386/i386-builtin-types.def (VOID_FTYPE_PV64QI_V64QI_UDI,
        VOID_FTYPE_PV32HI_V32HI_USI, VOID_FTYPE_PV32QI_V32QI_USI,
        VOID_FTYPE_PV16QI_V16QI_UHI, VOID_FTYPE_PV16HI_V16HI_UHI,
        VOID_FTYPE_PV8HI_V8HI_UQI): New types.
        * config/i386/i386-builtin.def (__builtin_ia32_compressqi512_mask,
        __builtin_ia32_compresshi512_mask, __builtin_ia32_compressqi256_mask,
        __builtin_ia32_compressqi128_mask, __builtin_ia32_compresshi256_mask,
        __builtin_ia32_compresshi128_mask,
        __builtin_ia32_compressstoreuqi512_mask,
        __builtin_ia32_compressstoreuhi512_mask,
        __builtin_ia32_compressstoreuqi256_mask,
        __builtin_ia32_compressstoreuqi128_mask,
        __builtin_ia32_compressstoreuhi256_mask,
        __builtin_ia32_compressstoreuhi128_mask): New builtins.
        * config/i386/i386.c (ix86_init_mmx_sse_builtins): Create special args
        array for flags2.
        (ix86_expand_special_args_builtin): Handle new types.
        (s4fma_expand): Handle new builtin array.
        * config/i386/immintrin.h: Include new headers.
        * config/i386/sse.md (VI12_AVX512VLBW): New iterator.
        (compress<mode>_mask, compressstore<mode>_mask): New patterns.

2017-11-23  Jakub Jelinek  <jakub@redhat.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Formatting
        fixes.  Declare temp and g variables at the top in order to avoid
        {} in most of the cases.

2017-11-23  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (ptr-0): New transformation.

2017-11-23  Charles Baylis  <charles.baylis@linaro.org>

        * config/arm/arm-protos.h (enum arm_addr_mode_op): New.
        (struct addr_mode_cost_table): New.
        (struct tune_params): Add field addr_mode_costs.
        * config/arm/arm.c (generic_addr_mode_costs): New.
        (arm_slowmul_tune): Initialise addr_mode_costs field.
        (arm_fastmul_tune): Likewise.
        (arm_strongarm_tune): Likewise.
        (arm_xscale_tune): Likewise.
        (arm_9e_tune): Likewise.
        (arm_marvell_pj4_tune): Likewise.
        (arm_v6t2_tune): Likewise.
        (arm_cortex_tune): Likewise.
        (arm_cortex_a8_tune): Likewise.
        (arm_cortex_a7_tune): Likewise.
        (arm_cortex_a15_tune): Likewise.
        (arm_cortex_a35_tune): Likewise.
        (arm_cortex_a53_tune): Likewise.
        (arm_cortex_a57_tune): Likewise.
        (arm_exynosm1_tune): Likewise.
        (arm_xgene1_tune): Likewise.
        (arm_cortex_a5_tune): Likewise.
        (arm_cortex_a9_tune): Likewise.
        (arm_cortex_a12_tune): Likewise.
        (arm_cortex_a73_tune): Likewise.
        (arm_v7m_tune): Likewise.
        (arm_cortex_m7_tune): Likewise.
        (arm_v6m_tune): Likewise.
        (arm_fa726te_tune): Likewise.
        (arm_mem_costs): Use table lookup to calculate cost of addressing mode.

2017-11-23  Charles Baylis  <charles.baylis@linaro.org>

        * config/arm/arm.c (arm_mem_costs): New function.
        (arm_rtx_costs_internal): Use arm_mem_costs.

2017-11-23  Mark Wielaard  <mark@klomp.org>

        * dwarf2out.c (init_sections_and_labels): Use generation to create
        unique ranges_section_label and ranges_base_label. Return generation.
        (output_rnglists): Add generation argument. Use generation to create
        unique ranges labels.
        (dwarf2out_finish): Get generation from init_sections_and_labels
        and pass generation to output_rnglists.

2017-11-23  Mike Stump  <mikestump@comcast.net>
            Eric Botcazou  <ebotcazou@adacore.com>

        * doc/generic.texi (ANNOTATE_EXPR): Document 3rd operand.
        * cfgloop.h (struct loop): Add unroll field.
        * function.h (struct function): Add has_unroll bitfield.
        * gimplify.c (gimple_boolify) <ANNOTATE_EXPR>: Deal with unroll kind.
        (gimplify_expr) <ANNOTATE_EXPR>: Propagate 3rd operand.
        * loop-init.c (pass_loop2::gate): Return true if cfun->has_unroll.
        (pass_rtl_unroll_loops::gate): Likewise.
        * loop-unroll.c (decide_unrolling): Tweak note message.  Skip loops
        for which loop->unroll==1.
        (decide_unroll_constant_iterations): Use note for consistency and
        take loop->unroll into account.  Return early if loop->unroll is set.
        Fix thinko in existing test.
        (decide_unroll_runtime_iterations): Use note for consistency and
        take loop->unroll into account.
        (decide_unroll_stupid): Likewise.
        * lto-streamer-in.c (input_cfg): Read loop->unroll.
        * lto-streamer-out.c (output_cfg): Write loop->unroll.
        * tree-cfg.c (replace_loop_annotate_in_block) <annot_expr_unroll_kind>:
        New case.
        (replace_loop_annotate) <annot_expr_unroll_kind>: Likewise.
        (print_loop): Print loop->unroll if set.
        * tree-core.h (enum annot_expr_kind): Add annot_expr_unroll_kind.
        * tree-inline.c (copy_loops): Copy unroll and set cfun->has_unroll.
        * tree-pretty-print.c (dump_generic_node) <annot_expr_unroll_kind>:
        New case.
        * tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Bail out if
        loop->unroll is set and smaller than the trip count.  Otherwise bypass
        entirely the heuristics if loop->unroll is set.  Remove dead note.
        Fix off-by-one bug in other note.
        (try_peel_loop): Bail out if loop->unroll is set.  Fix formatting.
        (tree_unroll_loops_completely_1): Force unrolling if loop->unroll
        is greater than 1.
        (tree_unroll_loops_completely): Make static.
        (pass_complete_unroll::execute): Use correct type for variable.
        (pass_complete_unrolli::execute): Fix formatting.
        * tree.def (ANNOTATE_EXPR): Add 3rd operand.

2017-11-23  Sergey Shalnov  <Sergey.Shalnov@intel.com>

        * config/i386/i386.h (TARGET_PREFER_AVX256): Also
        enable when TARGET_PREFER_AVX128 is set.

2017-11-23  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-profile.c (ipa_propagate_frequency_1): Use count instead of
        frequency.
        * cgraph.c (cgraph_edge::dump_edge_flags): Dump sreal frequencies.
        (cgraph_edge::maybe_hot_p): Use sreal frequencies.

2017-11-23  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-fnsummary.c (record_modified_bb_info): Use sreal
        frequencies. Fix estimation of aggregate parameters.

2017-11-23  Jan Hubicka  <hubicka@ucw.cz>

        * cgraphclones.c (cgraph_node::create_clone): Fix updating of profile
        when inlining.

2017-11-23  Tom de Vries  <tom@codesourcery.com>

        * config/sh/sh.h (ASM_OUTPUT_ADDR_VEC_ELT): Wrap in "do {} while (0)".

2017-11-23  Tom de Vries  <tom@codesourcery.com>

        * config/ft32/ft32.h (ASM_OUTPUT_ADDR_VEC_ELT): Remove semicolon after
        macro.

2017-11-23  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/83111
        * config/sh/sh.md (udivsi3, divsi3, sibcall_value_pcrel,
        sibcall_value_pcrel_fdpic): Use local variable instead of
        operands[3].
        (calli_tbr_rel): Add missing operand 2.
        (call_valuei_tbr_rel): Add missing operand 3.

2017-11-23  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/82253
        * expr.c (expand_assignment): For CONCAT to_rtx, complex type from and
        bitpos/bitsize covering the whole destination, use store_expr only if
        the complex mode is the same.  Otherwise, use expand_normal and if
        it returns CONCAT, subreg each part separately instead of trying to
        subreg the whole result.

2017-11-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/23094
        * tree-ssa-sccvn.c (vuse_ssa_val): Handle VN_TOP when we
        come here from walking over backedges in the first iteration.
        (vn_reference_lookup_3): Skip clobbers that store the same value.

2017-11-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81403
        * tree-ssa-pre.c (get_representative_for): Add parameter specifying
        a block we need a leader relative to.
        (phi_translate_1): For nary processing require a leader from
        get_representative_for given we run expression simplification
        using match-and-simplify.  Remove previous fix.

2017-11-22  Jeff Law  <law@redhat.com>

        * gimple-ssa-evrp-analyze.c (evrp_range_analyzer::try_find_new_range):
        Use new method allocate_value_range rather than accessing the
        vrp_value_range_pool data member directly.
        * tree-vrp.c (simplify_stmt_for_jump_threading): Tweak slightly
        to use extract_range_from_stmt method to avoid need for
        extract_range_from_assignment method.
        (vrp_prop::vrp_finalize): Use set_lattice_propagation_complete
        method rather than setting values_propgated data member directly.
        * vr-values.h (class vr_values): Privatize vrp_value_range_pool,
        and values propagated data members and extract_range_from_assignment
        method.  Reorder private data members to conform to standards.
        Add new methods set_lattice_propagation_complete and
        allocate_value_range.

2017-11-22  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/83030
        * doc/rtl.texi (Flags in an RTL Expression): Alphabetize, add entry
        for CROSSING_JUMP_P and mention usage of 'jump' for JUMP_INSNs.
        (Insns): Delete entry for REG_CROSSING_JUMP in register notes.
        * bb-reorder.c (update_crossing_jump_flags): Do not test whether the
        CROSSING_JUMP_P flag is already set before setting it.
        * cfgrtl.c (fixup_partition_crossing): Likewise.
        * reorg.c (relax_delay_slots): Do not consider a CROSSING_JUMP_P
        insn as useless.

2017-11-22  Jakub Jelinek  <jakub@redhat.com>

        * simplify-rtx.c (simplify_binary_operation_1) <case VEC_SERIES>:
        Handle the case where both arguments are using gen_const_vec_series.

2017-11-22  David Malcolm  <dmalcolm@redhat.com>

        PR c++/62170
        * pretty-print.c (pp_format): Move quoting implementation to
        pp_begin_quote and pp_end_quote.  Update pp_format_decoder call
        to pass address of "quote" local.
        (pp_begin_quote): New function.
        (pp_end_quote): New function.
        * pretty-print.h (printer_fn): Convert penultimate param from bool
        to bool *.
        (pp_begin_quote): New decl.
        (pp_end_quote): New decl.
        * tree-diagnostic.c (default_tree_printer): Convert penultimate
        param from bool to bool *.
        * tree-diagnostic.h (default_tree_printer): Likewise.

2017-11-22  Jeff Law  <law@redhat.com>

        * gimple-ssa-evrp-analyze.c (evrp_range_analyzer::evrp_range_analyzer)
        Initialize vr_values.
        (evrp_range_analyzer::try_find_new_range): Call methods attached to
        vr_values via vr_values class instance rather than delegators.
        (evrp_range_analyzer::record_ranges_from_phis): Likewise.
        (evrp_range_analyzer::record_ranges_from_stmt): Likewise.
        (evrp_range_analyzer::push_value_range): Likewise.
        (evrp_range_analyzer::pop_value_range): Likewise.
        * gimple-ssa-evrp-analyze.h (class evrp_range_analyzer): Remove
        most delegators.  Those remaining are exposed as public interfaces.
        Make vr_values a pointer and private.
        (evrp_range_analyzer::~evrp_range_analyzer): Delete the attached
        vr_values.
        (evrp_range_analyzer::get_vr_value): New method.
        * gimple-ssa-evrp.c (class evrp_folder): Use DISABLE_COPY_AND_ASSIGN.
        (evrp_folder::evrp_folder): New ctor to initialize vr_values.
        (class evrp_dom_walker): Attach evrp_folder class, initialize
        it in the ctor.  Remove temporary delegators.
        (evrp_dom_walker::before_dom_children): Call methods in attached
        evrp_range_analyzer class via class instance pointer.  Use
        free value_range_constant_singleton to remove need for
        op_with_constant_singleton_value delegator method.  Do not
        create a vrp_prop class instance for every call!  Narrow
        scope of a couple variables.
        (evrp_dom_walker::cleanup): Call methods in attached
        evrp_range_analyzer class via class instance pointer.
        * vr-values.h (class vr_values): Privatize many methods and
        data members.

2017-11-22  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree.def (REDUC_MAX_EXPR, REDUC_MIN_EXPR, REDUC_PLUS_EXPR): Delete.
        * cfgexpand.c (expand_debug_expr): Remove handling for them.
        * expr.c (expand_expr_real_2): Likewise.
        * fold-const.c (const_unop): Likewise.
        * optabs-tree.c (optab_for_tree_code): Likewise.
        * tree-cfg.c (verify_gimple_assign_unary): Likewise.
        * tree-inline.c (estimate_operator_cost): Likewise.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        (op_code_prio): Likewise.
        (op_symbol_code): Likewise.
        * internal-fn.def (DEF_INTERNAL_SIGNED_OPTAB_FN): Define.
        (IFN_REDUC_PLUS, IFN_REDUC_MAX, IFN_REDUC_MIN): New internal functions.
        * internal-fn.c (direct_internal_fn_optab): New function.
        (direct_internal_fn_array, direct_internal_fn_supported_p
        (internal_fn_expanders): Handle DEF_INTERNAL_SIGNED_OPTAB_FN.
        * fold-const-call.c (fold_const_reduction): New function.
        (fold_const_call): Handle CFN_REDUC_PLUS, CFN_REDUC_MAX and
        CFN_REDUC_MIN.
        * tree-vect-loop.c: Include internal-fn.h.
        (reduction_code_for_scalar_code): Rename to...
        (reduction_fn_for_scalar_code): ...this and return an internal
        function.
        (vect_model_reduction_cost): Take an internal_fn rather than
        a tree_code.
        (vect_create_epilog_for_reduction): Likewise.  Build calls rather
        than assignments.
        (vectorizable_reduction): Use internal functions rather than tree
        codes for the reduction operation.  Update calls to the functions
        above.
        * config/aarch64/aarch64-builtins.c (aarch64_gimple_fold_builtin):
        Use calls to internal functions rather than REDUC tree codes.
        * config/aarch64/aarch64-simd.md: Update comment accordingly.

2017-11-22  Olivier Hainque  <hainque@adacore.com>

        * config/vxworks.c (vxworks_override_options): Pick default
        dwarf version from macro value, VXWORKS_DWARF_VERSION_DEFAULT.
        * config/vxworks.h: Define VXWORKS_DWARF_VERSION_DEFAULT and
        DWARF_GNAT_ENCODINGS_DEFAULT.
        * config/vxworksae.h: Likewise.

2017-11-22  Marc Glisse  <marc.glisse@inria.fr>

        PR tree-optimization/83104
        * vr-values.c (simplify_stmt_using_ranges): Check integral argument,
        not result.

2017-11-22  Marek Polacek  <polacek@redhat.com>
            H.J. Lu  <hongjiu.lu@intel.com>
            Jason Merrill  <jason@redhat.com>

        PR c++/60336
        PR middle-end/67239
        PR target/68355
        * calls.c (initialize_argument_information): Call
        warn_parameter_passing_abi target hook.
        (store_one_arg): Use 0 for empty record size.  Don't push 0 size
        argument onto stack.
        (must_pass_in_stack_var_size_or_pad): Return false for empty types.
        * common.opt: Update -fabi-version description.
        * config/i386/i386.c (init_cumulative_args): Set cum->warn_empty.
        (ix86_gimplify_va_arg): Call arg_int_size_in_bytes instead of
        int_size_in_bytes.
        (ix86_is_empty_record): New function.
        (ix86_warn_parameter_passing_abi): New function.
        (TARGET_EMPTY_RECORD_P): Redefine.
        (TARGET_WARN_PARAMETER_PASSING_ABI): Redefine.
        * config/i386/i386.h (CUMULATIVE_ARGS): Add warn_empty.
        * doc/tm.texi: Regenerated.
        * doc/tm.texi.in (TARGET_EMPTY_RECORD_P,
        TARGET_WARN_PARAMETER_PASSING_ABI): Add.
        * dwarf2out.c (get_ultimate_context): Move to tree.c.
        * explow.c (hard_function_value): Call arg_int_size_in_bytes
        instead of int_size_in_bytes.
        * expr.c (copy_blkmode_to_reg): Likewise.
        * function.c (aggregate_value_p): Return 0 for empty types.
        (assign_parm_find_entry_rtl): Call warn_parameter_passing_abi
        target hook.
        (locate_and_pad_parm): Call arg size_in_bytes instead
        size_in_bytes.
        * lto-streamer-out.c (hash_tree): Hash TYPE_EMPTY_P and DECL_PADDING_P.
        * stor-layout.c (finalize_type_size): Set TYPE_EMPTY_P.
        * target.def (empty_record_p, warn_parameter_passing_abi): New target
        hooks.
        * targhooks.c (hook_void_CUMULATIVE_ARGS_tree): New hook.
        (std_gimplify_va_arg_expr): Skip empty records.  Call
        arg_size_in_bytes instead size_in_bytes.
        * targhooks.h (hook_void_CUMULATIVE_ARGS_tree): Declare.
        * tree-core.h (tree_type_common): Add empty_flag.
        (tree_decl_common): Update comments.
        * tree-streamer-in.c (unpack_ts_decl_common_value_fields): Stream
        DECL_PADDING_P.
        (unpack_ts_type_common_value_fields): Stream TYPE_EMPTY_P.
        * tree-streamer-out.c (pack_ts_decl_common_value_fields): Stream
        DECL_PADDING_P.
        (pack_ts_type_common_value_fields): Stream TYPE_EMPTY_P.
        * tree.c (default_is_empty_type): New function.
        (default_is_empty_record): New function.
        (arg_int_size_in_bytes): New function.
        (arg_size_in_bytes): New function.
        (get_ultimate_context): New function.
        * tree.h: Define TYPE_EMPTY_P, DECL_PADDING_P and
        TRANSLATION_UNIT_WARN_EMPTY_P.
        (default_is_empty_record, arg_int_size_in_bytes,
        arg_size_in_bytes, get_ultimate_context): Declare.

2017-11-22  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (cmse_clear_registers): New function.
        (cmse_nonsecure_call_clear_caller_saved): Replace register clearing
        code by call to cmse_clear_registers.
        (cmse_nonsecure_entry_clear_before_return): Likewise.

2017-11-22  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm_neon.h (vdot_u32, vdotq_u32)
        (vdot_s32, vdotq_s32): New.
        (vdot_lane_u32, vdotq_lane_u32): New.
        (vdot_lane_s32, vdotq_lane_s32): New.


2017-11-22  Richard Sandiford  <richard.sandiford@linaro.org>

        PR middle-end/82547
        * wide-int.cc (wi::add_large, wi::sub_large): Fix overflow detection
        for unsigned values with fewer HWIs than the precision.
        (test_overflow): New function.
        (wide_int_cc_tests): Call it.

2017-11-22  Richard Sandiford  <richard.sandiford@linaro.org>

        * emit-rtl.c (init_derived_machine_modes): Make sure ptr_mode
        has the same mode class as Pmode.

2017-11-22  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (cmse_nonsecure_call_clear_caller_saved): Get rid of
        padding_bits_to_clear_ptr.
        (cmse_nonsecure_entry_clear_before_return): Likewise.

2017-11-22  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (cmse_nonsecure_call_clear_caller_saved): Use
        auto_sbitap instead of integer bitfield to control register needing
        clearing.

2017-11-22  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/83044
        * tree-vrp.c (vrp_prop::check_array_ref): If eltsize is not
        INTEGER_CST or is 0, clear up_bound{,_p1} and later ignore tests
        that need the upper bound.  Subtract offset from
        get_addr_base_and_unit_offset only if positive and subtract it
        before division by eltsize rather than after it.

        PR debug/83084
        * valtrack.c (propagate_for_debug_subst, propagate_for_debug): Reset
        debug insns if they would contain UNSPEC_VOLATILE or volatile asm.
        (dead_debug_insert_temp): Likewise, but also ignore even non-volatile
        asm.

        PR middle-end/82875
        * optabs.c (expand_doubleword_mult, expand_binop): Before calling
        expand_binop with *mul_widen_optab, make sure at least one of the
        operands doesn't have VOIDmode.

        PR debug/83034
        * dwarf2out.c (mem_loc_descriptor): Handle VEC_SERIES.

        PR rtl-optimization/82044
        PR tree-optimization/82042
        * dse.c (record_store): Check for overflow.
        (check_mem_read_rtx): Properly check for overflow if width == -1, call
        add_wild_read instead of clear_rhs_from_active_local_stores on
        overflow and log it into dump_file.

2017-11-22  Richard Biener  <rguenther@suse.de>

        * gimple-iterator.c (gimple_find_edge_insert_loc): Ignore
        fake edges to exit when looking for a place to insert.
        * tree-ssa-pre.c (clear_expression_ids): Inline into callers
        and remove.
        (insert_into_preds_of_block): Commit edge insertion immediately,
        assert that doesn't require new BBs.
        (fini_pre): Release expressions.
        (pass_pre::execute): Shuffle things around a bit, if the fn
        is too large do not compute AVAIL either as this is really the
        quadratic bit.

2017-11-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83089
        * tree-if-conv.c (pass_if_conversion::execute): If anything
        changed reset SCEV and free the number of iteration estimates.

2017-11-21  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/82945
        * calls.h (warn_nonstring_bound): Remove unused function.

2017-11-21  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/82945
        * builtins.c (expand_builtin_strlen): Call maybe_warn_nonstring_arg.
        * calls.h (maybe_warn_nonstring_arg): Declare new function.
        * calls.c (get_attr_nonstring_decl, maybe_warn_nonstring_arg): New
        functions.
        (initialize_argument_information): Call maybe_warn_nonstring_arg.
        * calls.h (get_attr_nonstring_decl): Declare new function.
        * doc/extend.texi (attribute nonstring): Update.
        * gimple-fold.c (gimple_fold_builtin_strncpy): Call
        get_attr_nonstring_decl and handle it.
        * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Same.  Improve
        detection of nul-termination.
        (strlen_to_stridx): Change to a pointer.
        (handle_builtin_strlen, handle_builtin_stxncpy): Adjust.
        (pass_strlen::execute): Same.

2017-11-21  Sergey Shalnov  <Sergey.Shalnov@intel.com>

        * config/i386/i386-opts.h (enum prefer_vector_width): Added new enum
        for the new option -mprefer-vector-width=[none|128|256|512].
        * config/i386/i386.c (ix86_target_string): remove old style options
        -mprefer-avx256 and make -mprefer-avx128 as alias.
        (ix86_option_override_internal):  Apply defaults for the
        -mprefer-vector-width=[128|256] option.
        * config/i386/i386.h (TARGET_PREFER_AVX128, TARGET_PREFER_AVX256):
        Implement macros to work with -mprefer-vector-width=.
        * config/i386/i386.opt: Implemented option
        -mprefer-vector-width=[none|128|256|512].
        * doc/invoke.texi: Documentation for
        -mprefer-vector-width=[none|128|256|512].

2017-11-21  Pat Haugen  <pthaugen@us.ibm.com>

        * config/rs6000/ppc-asm.h (f50, vs50): Fix values.

2017-11-21  Jonathan Wakely  <jwakely@redhat.com>

        * doc/invoke.texi (-Wmaybe-uninitialized): Rephrase for clarity.

2017-11-21  Marc Glisse  <marc.glisse@inria.fr>

        * doc/generic.texi: Document POINTER_DIFF_EXPR, update
        POINTER_PLUS_EXPR.
        * cfgexpand.c (expand_debug_expr): Handle POINTER_DIFF_EXPR.
        * expr.c (expand_expr_real_2): Likewise.
        * fold-const.c (const_binop, fold_addr_of_array_ref_difference,
        fold_binary_loc): Likewise.
        * match.pd (X-X, P+(Q-P), &D-P, (P+N)-P, P-(P+N), (P+M)-(P+N),
        P-Q==0, -(A-B), X-Z<Y-Z, (X-Z)-(Y-Z), Z-X<Z-Y, (Z-X)-(Z-Y),
        (A-B)+(C-A)): New transformations for POINTER_DIFF_EXPR, based on
        MINUS_EXPR transformations.
        * optabs-tree.c (optab_for_tree_code): Handle POINTER_DIFF_EXPR.
        * tree-cfg.c (verify_expr, verify_gimple_assign_binary): Likewise.
        * tree-inline.c (estimate_operator_cost): Likewise.
        * tree-pretty-print.c (dump_generic_node, op_code_prio,
        op_symbol_code): Likewise.
        * tree-vect-stmts.c (vectorizable_operation): Likewise.
        * vr-values.c (extract_range_from_binary_expr): Likewise.
        * varasm.c (initializer_constant_valid_p_1): Likewise.
        * tree.def: New tree code POINTER_DIFF_EXPR.

2017-11-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*bswap<mode>2_movbe): Add
        integer suffix to movbe mnemonic.
        (*bswaphi2_movbe): Ditto.
        (bswaphi_lowpart): Merge with *bswaphi_lowpart_1.

2017-11-21  Jakub Jelinek  <jakub@redhat.com>

        PR c++/83045
        * tree-cfg.c (pass_warn_function_return::execute): Formatting fix.
        Also warn if seen __builtin_unreachable () call with BUILTINS_LOCATION.
        Use LOCATION_LOCUS when comparing against UNKNOWN_LOCATION.

2017-11-21  Martin Liska  <mliska@suse.cz>

        * tree-inline.c (expand_call_inline): Remove not needed
        xstrdup_for_dump.

2017-11-21  James Cowgill  <James.Cowgill@imgtec.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR target/82880
        * config/mips/frame-header-opt.c (mips_register_frame_header_opt):
        Remove static keyword from f variable.

2017-11-21  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/83086
        * gimple-ssa-store-merging.c
        (imm_store_chain_info::try_coalesce_bswap): Test this_n.base_addr
        rather than n.base_addr.

2017-11-21  Martin Liska  <mliska@suse.cz>

        PR rtl-optimization/82044
        PR tree-optimization/82042
        * dse.c (check_mem_read_rtx): Check for overflow.

2017-11-21  Aldy Hernandez  <aldyh@redhat.com>

        * tree-ssa-threadbackward.c (find_jump_threads_backwards): Fix
        typo in comment.

2017-11-21  Claudiu Zissulescu  <claziss@synopsys.com>

        * cfgrtl.c (force_nonfallthru_and_redirect): Don't split a call
        and its corresponding call arg location note.

2017-11-21  Claudiu Zissulescu  <claziss@synopsys.com>
            Andrew Burgess  <andrew.burgess@embecosm.com>

        * config/arc/arc-protos.h (arc_compute_frame_size): Delete
        declaration.
        (arc_return_slot_offset): Likewise.
        (arc_eh_return_address_location): New declaration.
        * config/arc/arc.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Define.
        (MUST_SAVE_REGISTER): Add exception handler case.
        (MUST_SAVE_RETURN_ADDR): Likewise.
        (arc_frame_pointer_required): Likewise.
        (arc_frame_pointer_needed): New function.
        (arc_compute_frame_size): Changed.
        (arc_expand_prologue): Likewise.
        (arc_expand_epilogue): Likewise.
        (arc_initial_elimination_offset): Likewise.
        (arc_return_slot_offset): Delete.
        (arc_eh_return_address_location): New function.
        (arc_builtin_setjmp_frame_value): Likewise.
        * config/arc/arc.h (EH_RETURN_DATA_REGNO): Use 2 registers.
        (EH_RETURN_STACKADJ_RTX): Define.
        (EH_RETURN_HANDLER_RTX): Likewise.
        * config/arc/arc.md (eh_return): Delete.

2017-11-21  Aldy Hernandez  <aldyh@redhat.com>

        * print-tree.h (debug_vec_tree): Remove prototype.
        * gdbinit.in (pvt): Remove macro.

2017-11-21  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/83047
        * gimple-ssa-store-merging.c
        (imm_store_chain_info::output_merged_store): If the loads with the
        same vuse are in different basic blocks, for load_gsi pick a load
        location that is dominated by the other loads.

        PR c++/83059
        * config/i386/i386.c (ix86_memmodel_check): Start
        -Winvalid-memory-model diagnostics with lowercase letter.

        PR debug/82718
        * dwarf2out.c (dw_loc_list): If crtl->has_bb_partition, temporarily
        set in_cold_section_p to the partition containing loc_list->first.
        When seeing loc_list->last_before_switch node, update secname and
        perform range_across_switch second partition handling only after that.

        PR debug/82933
        * run-rtl-passes.c: Include debug.h.
        (run_rtl_passes): Call debug_hooks->assembly_start.
        * dwarf2out.c (dwarf2out_assembly_start): Return early if invoked
        multiple times.

        PR target/82981
        * internal-fn.c (expand_mul_overflow): Use OPTAB_WIDEN instead of
        OPTAB_DIRECT in calls to expand_simple_binop.

2017-11-20  David Malcolm  <dmalcolm@redhat.com>

        PR c/81404
        * Makefile.in (C_COMMON_OBJS): Add c-family/known-headers.o.

2017-11-20  David Malcolm  <dmalcolm@redhat.com>

        PR c++/72786
        * spellcheck.h (best_match::blithely_get_best_candidate): New
        accessor.

2017-11-20  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (parse_mtune_ctrl_str): Start diagnostics
        with lower case letter.

2017-11-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (bswaphi2): New expander.
        (*bswaphi2_movbe): New insn pattern.
        (bswaphi -> rorhi pepehole2): New peephole pattern.

2017-11-20  Jeff Law  <law@redhat.com>

        * Makefile.in (OBJS): Add gimple-ssa-evrp-analyze.o.
        * gimple-ssa-evrp-analyze.c: New file pulled from gimple-ssa-evrp.c.
        * gimple-ssa-evrp-analyze.h: New file pulled from gimple-ssa-evrp.c.
        * gimple-ssa-evrp.c: Remove bits moved into new files.  Include
        gimple-ssa-evrp-analyze.h.

        * gimple-ssa-evrp.c (evrp_dom_walker::before_dom_children): Do not
        set BB_VISITED here.
        (evrp_range_analyzer::enter): Set BB_VISITED here instead.

2017-11-20  Bin Cheng  <bin.cheng@arm.com>

        * tree-predcom.c: Add general comment on Store-Store chains.
        (split_data_refs_to_components): Postpone clearing eliminate_store_p
        flag in component.
        (get_chain_last_ref_at): Rename into...
        (get_chain_last_write_at): ...this.
        (get_chain_last_write_before_load): New function.
        (add_ref_to_chain): Promote type of chain from CT_STORE_LOAD to
        CT_STORE_STORE when write reference is added.
        (determine_roots_comp): Support load ref in CT_STORE_STORE chains.
        (is_inv_store_elimination_chain): Update get_chain_last_write_at call.
        (initialize_root_vars_store_elim_1): Ditto.
        (initialize_root_vars_store_elim_2): Ditto.  Replace rhs once default
        definition is created.
        (execute_pred_commoning_chain): Support load ref in CT_STORE_STORE
        chain by replacing it with dominant stored value.

2017-11-20  Bin Cheng  <bin.cheng@arm.com>

        * tree-predcom.c (add_ref_to_chain): Remove check on distance.

2017-11-20  Marc Glisse  <marc.glisse@inria.fr>

        * vr-values.c (extract_range_from_binary_expr): Use a full range
        for VR_VARYING.

2017-11-20  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.md (R4_REGNUM): Define constant.
        (nonsecure_call_internal): Remove r4 clobber.
        (nonsecure_call_value_internal): Likewise.
        * config/arm/thumb1.md (nonsecure_call_reg_thumb1_v5): Remove second
        clobber and resequence match_operands.
        (nonsecure_call_value_reg_thumb1_v5): Likewise.
        * config/arm/thumb2.md (nonsecure_call_reg_thumb2): Likewise.
        (nonsecure_call_value_reg_thumb2): Likewise.

2017-11-20  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/78821
        * gimple-ssa-store-merging.c (find_bswap_or_nop_load): Give up
        if base is TARGET_MEM_REF.  If base is not MEM_REF, set base_addr
        to the address of the base rather than the base itself.
        (find_bswap_or_nop_1): Just use pointer comparison for vuse check.
        (find_bswap_or_nop_finalize): New function.
        (find_bswap_or_nop): Use it.
        (bswap_replace): Return a tree rather than bool, change first
        argument from gimple * to gimple_stmt_iterator, allow inserting
        into an empty sequence, allow ins_stmt to be NULL - then emit
        all stmts into gsi.  Fix up MEM_REF address gimplification.
        (pass_optimize_bswap::execute): Adjust bswap_replace caller.
        (struct store_immediate_info): Add N and INS_STMT non-static
        data members.
        (store_immediate_info::store_immediate_info): Initialize them
        from newly added ctor args.
        (merged_store_group::apply_stores): Formatting fixes.  Sort by
        bitpos at the end.
        (stmts_may_clobber_ref_p): For stores call also
        refs_anti_dependent_p.
        (gather_bswap_load_refs): New function.
        (imm_store_chain_info::try_coalesce_bswap): New method.
        (imm_store_chain_info::coalesce_immediate_stores): Use it.
        (split_group): Handle LROTATE_EXPR and NOP_EXPR rhs_code specially.
        (imm_store_chain_info::output_merged_store): Fail if number of
        new estimated stmts is bigger or equal than old.  Handle LROTATE_EXPR
        and NOP_EXPR rhs_code.
        (pass_store_merging::process_store): Compute n and ins_stmt, if
        ins_stmt is non-NULL and the store rhs is otherwise invalid, use
        LROTATE_EXPR rhs_code.  Pass n and ins_stmt to store_immediate_info
        ctor.
        (pass_store_merging::execute): Calculate dominators.

        * tree-ssa-math-opts.c (nop_stats, bswap_stats, struct symbolic_number,
        BITS_PER_MARKER, MARKER_MASK, MARKER_BYTE_UNKNOWN, HEAD_MARKER, CMPNOP,
        CMPXCHG, do_shift_rotate, verify_symbolic_number_p,
        init_symbolic_number, find_bswap_or_nop_load, perform_symbolic_merge,
        find_bswap_or_nop_1, find_bswap_or_nop, pass_data_optimize_bswap,
        class pass_optimize_bswap, bswap_replace,
        pass_optimize_bswap::execute): Moved to ...
        * gimple-ssa-store-merging.c: ... this file.
        Include optabs-tree.h.
        (nop_stats, bswap_stats, do_shift_rotate, verify_symbolic_number_p,
        init_symbolic_number, find_bswap_or_nop_load, perform_symbolic_merge,
        find_bswap_or_nop_1, find_bswap_or_nop, bswap_replace): Put into
        anonymous namespace, remove static keywords.
        (pass_optimize_bswap::gate): Test BITS_PER_UNIT == 8 here...
        (pass_optimize_bswap::execute): ... rather than here.  Formatting fix.

2017-11-20  Jan Hubicka  <hubicka@ucw.cz>

        PR bootstrap/83062
        * ipa-inline.c (can_inline_edge_p): Fix typo in previous patch.

2017-11-20  Aldy Hernandez  <aldyh@redhat.com>

        * vec.h (debug_helper): New function.
        (DEFINE_DEBUG_VEC): New macro.
        * hash-set.h (debug_helper): New function.
        (DEFINE_DEBUG_HASH_SET): New macro.
        * cfg.c (debug_slim (edge)): New function.
        Call DEFINE_DEBUG_VEC for edges.
        Call DEFINE_DEBUG_HASH_SET for edges.
        * cfghooks.c (debug_slim (basic_block)): New function.
        Call DEFINE_DEBUG_VEC for basic blocks.
        Call DEFINE_DEBUG_HASH_SET for basic blocks.
        * print-tree.c (debug_slim): New function to handle trees.
        Call DEFINE_DEBUG_VEC for trees.
        Call DEFINE_DEBUG_HASH_SET for trees.
        (debug (vec<tree, va_gc>) &): Remove.
        (debug (<vec<tree, va_gc>) *): Remove.
        * print-rtl.c (debug_slim): New function to handle const_rtx.
        Call DEFINE_DEBUG_VEC for rtx_def.
        Call DEFINE_DEBUG_VEC for rtx_insn.
        Call DEFINE_DEBUG_HASH_SET for rtx_def.
        Call DEFINE_DEBUG_HASH_SET for rtx_insn.
        * sel-sched-dump.c (debug (vec<rtx_insn *> &): Remove.
        (debug (vec<rtx_insn *> *ptr): Remove.
        (debug_insn_vector): Remove.
        * stor-layout.c (debug_rli): Call debug() instead of debug_vec_tree.

2017-11-20  Tom de Vries  <tom@codesourcery.com>

        PR rtl-optimization/82020
        * simplify-rtx.c (simplify_ternary_operation): Fix comparison mode of
        IF_THEN_ELSE condition.

2017-11-19  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (record_equivalences_from_phis): Fix handling
        of degenerates resulting from ignoring an edge.

2017-11-19  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/81360
        * ipa-inline.c (can_inline_edge_p): Also check that caller is optimized

2017-11-19  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/83001
        * profile-count.c (profile_count::to_sreal_scale): Fix return value
        for uninitialied counts.

2017-11-19  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/60243
        * tree-inline.c (estimate_num_insns): Set to 1 at least.

2017-11-19  Jan Hubicka  <hubicka@ucw.cz>

        PR target/82713
        * i386.c (ix86_builtin_vectorization_cost): Be ready for insane types.

2017-11-19  Tom de Vries  <tom@codesourcery.com>

        * config/arc/arc.h (FUNCTION_PROFILER): Remove semicolon after
        "do while (0)".

2017-11-19  Tom de Vries  <tom@codesourcery.com>

        * config/phoenix.h (TARGET_OS_CPP_BUILTINS): Remove semicolon after
        "do {} while (0)".

2017-11-19  Tom de Vries  <tom@codesourcery.com>

        * config/visium/visium.h (ASM_OUTPUT_CASE_END): Remove semicolon after
        macro body.

2017-11-19  Tom de Vries  <tom@codesourcery.com>

        * config/ft32/ft32.h (REGISTER_TARGET_PRAGMAS): Remove semicolon after
        "do {} while (0)".
        * config/spu/spu.h (REGISTER_TARGET_PRAGMAS): Same.

2017-11-19  Tom de Vries  <tom@codesourcery.com>

        * config/mcore/mcore-elf.h (MCORE_EXPORT_NAME): Remove semicolon after
        "do {} while (0)".
        * config/mcore/mcore.h (ASM_OUTPUT_ALIGNED_COMMON): After missing
        semicolon after MCORE_EXPORT_NAME call.

2017-11-19  Tom de Vries  <tom@codesourcery.com>

        PR target/82961
        * vmsdbgout.c (vmsdbgout_early_finish): New function.
        (vmsdbg_debug_hooks): Set early_finish field to vmsdbgout_early_finish.

2017-11-18  Jan Hubicka  <hubicka@ucw.cz>

        * cgraphclones.c (cgraph_edge::clone): Rename gcov_count to prof_count.
        (cgraph_edge::clone): Cleanup updating of profile.
        * ipa-cp.c (update_profiling_info): Likewise.
        * ipa-inline-transform.c (inline_transform): Likewise.
        * ipa-inline.c (inline_small_functions): Add missing space to dump.
        * ipa-split.c (execute_split_functions): Do not split when function
        is cold.
        * predict.c (estimate_bb_frequencies): Cleanup updating of profile.
        * profile-count.c (profile_count::dump): Add global0.
        (profile_count::to_cgraph_frequency): Do not ICE when entry is
        undefined.
        (profile_count::to_sreal_scale): Likewise.
        (profile_count::adjust_for_ipa_scaling): Fix typo in comment.
        (profile_count::combine_with_ipa_count): New function.
        * profile-count.h (profile_guessed_global0adjusted): New.
        (profile_count::adjusted_zero): New.
        (profile_count::global0adjusted): New.
        (profile_count::combine_with_ipa_count): New.
        * tree-inline.c (copy_edges_for_bb): Add NUM/DEN arugment;
        correct profile of return block of split functions.
        (copy_cfg_body): Remove unused profile_count.
        (copy_body): Likewise.
        (expand_call_inline): Update.
        (tree_function_versioning): Update.

2017-11-18  Aldy Hernandez  <aldyh@redhat.com>

        * hash-set.h (hash_set::empty): New.
        * tree-ssa-threadbackward.h: Delete.
        * tree-ssa-threadbackward.c (class thread_jumps): New.
        Move max_threaded_paths into class.
        (fsm_find_thread_path): Remove arguments that are now in class.
        (profitable_jump_thread_path): Rename to...
        (thread_jumps::profitable_jump_thread_path): ...this.
        (convert_and_register_jump_thread_path): Rename to...
        (thread_jumps::convert_and_register_current_path): ...this.
        (check_subpath_and_update_thread_path): Rename to...
        (thread_jumps::check_subpath_and_update_thread_path): ...this.
        (register_jump_thread_path_if_profitable): Rename to...
        (thread_jumps::register_jump_thread_path_if_profitable): ...this.
        (handle_phi): Rename to...
        (thread_jumps::handle_phi): ...this.
        (handle_assignment): Rename to...
        (thread_jumps::handle_assignment): ...this.
        (fsm_find_control_statement_thread_paths): Rename to...
        (thread_jumps::fsm_find_control_statement_thread_paths): ...this.
        (find_jump_threads_backwards): Rename to...
        (thread_jumps::find_jump_threads_backwards): ...this.
        Initialize path local data.
        (pass_thread_jumps::execute): Call find_jump_threads_backwards
        from within thread_jumps class.
        (pass_early_thread_jumps::execute): Same.

2017-11-17  Jan Hubicka  <hubicka@ucw.cz>

        * cgraph.c (cgraph_node::dump): Do IPA sanity checking on IPA counts.

2017-11-17  Steve Ellcey  <sellcey@cavium.com>

        * config/aarch64/aarch64-simd.md (fnma<mode>4): Move neg operator
        to canonical location.

2017-11-17  Steve Ellcey  <sellcey@cavium.com>

        PR target/81356
        * config/aarch64/aarch64.c (aarch64_use_by_pieces_infrastructure_p):
        Remove.
        (TARGET_USE_BY_PIECES_INFRASTRUCTURE_P): Remove define.

2017-11-17  H.J. Lu  <hongjiu.lu@intel.com>

        * config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Use
        rcrt1.o%s/grcrt1.o%s for -static-pie.

2017-11-17  Jan Hubicka  <hubicka@ucw.cz>

        * i386.c (ix86_multiplication_cost, ix86_division_cost,
        ix86_shift_rotate_cost): Break out from ...
        (ix86_rtx_costs): ... here.
        (ix86_add_stmt_cost): Use rtx cost machinery to compute cost of
        vector operations.

2017-11-17  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (determine_unlikely_bbs): Set cgraph node count to 0
        when entry block was promoted unlikely.
        (estimate_bb_frequencies): Increase frequency scale.
        * profile-count.h (profile_count): Export precision info.

2017-11-17  Jan Hubicka  <hubicka@ucw.cz>

        * tree-tailcall.c (eliminate_tail_call): Be more careful about not
        disturbin profile of entry block.

2017-11-17  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-fnsummary.c (estimate_node_size_and_time): Be more tolerant for
        roundoff errors.

2017-11-17  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-cp.c (update_profiling_info): Handle conversion to local profile.
        * tree-cfg.c (execute_fixup_cfg): Do fixup same way as inliner does.

2017-11-17  Jeff Law  <law@redhat.com>

        * gimple-ssa-evrp.c (class evrp_range_analyzer): New class extracted
        from evrp_dom_walker class.  Various methods moved into new class.
        (evrp_range_analyzer::evrp_range_analyzer): Constructor for new class.
        (evrp_range_analyzer::enter): New method.
        (evrp_range_analyzer::leave): New method.
        (evrp_dom_walker): Remove delegators no longer needed by this class.
        Replace vr_values data member with evrp_range_analyzer

        * gimple-ssa-evrp.c (evrp_dom_walker::record_ranges_from_phis): New
        method extracted from evrp_dom_walker::before_dom_children.
        (evrp_dom_walker::record_ranges_from_stmt): Likewise.
        (evrp_dom_walker::record_ranges_from_incoming_edge): Likewise.

        * gimple-ssa-evrp.c (evrp_dom_walker): Add cleanup method.
        Add private copy constructor and move assignment operators.
        Privatize methods and class data where trivially possible.
        (evrp_dom_walker::cleanup): New function, extracted from
        execute_early_vrp.  Simplify access to class data.

        * vr-values.h (get_output_for_vrp): Prototype.
        * vr-values.c (get_output_for_vrp): New function extracted from
        vrp_visit_assignment_or_call and extract_range_from_stmt.
        (vrp_visit_assignment_or_call): Use get_output_for_vrp.  Simplify.

2017-11-17  Luis Machado  <luis.machado@linaro.org>

        * config/aarch64/aarch64.c
        (qdf24xx_prefetch_tune) <default_opt_level>: Set to -1.
        (qdf24xx_tunings) <autoprefetcher_model>: Set to
        tune_params::AUTOPREFETCHER_WEAK.

2017-11-17  Tamar Christina  <tamar.christina@arm.com>

        PR target/82641
        * config/arm/arm.c (arm_valid_target_attribute_rec):
        Parse "arch=" and "+<ext>".
        (arm_valid_target_attribute_tree): Re-init global options.
        (arm_option_override): Make non-static.
        (arm_options_perform_arch_sanity_checks): Make errors fatal.
        * gcc/config/arm/arm-c.c (__ARM_FEATURE_CMSE): Support undef.
        (__ARM_FEATURE_CRC32): Support undef.
        * config/arm/arm_acle.h (__ARM_FEATURE_CRC32): Replace with pragma.
        * doc/extend.texi (ARM Function Attributes): Add pragma and target.

2017-11-17  David Malcolm  <dmalcolm@redhat.com>

        * gdbinit.in (break-on-diagnostic): New command.

2017-11-17  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>

        * config/i386/i386.c (ix86_expand_epilogue): Change simple
        return to indirect jump for EH return if control-flow
        protection is enabled. Change explicit 'false' argument in
        pro_epilogue_adjust_stack with a value of
        flag_cf_protection.
        * config/i386/i386.md (simple_return_indirect_internal):
        Remove SImode restriction to support 64-bit.

2017-11-17  Segher Boessenkool  <segher@kernel.crashing.org>

        * combine.c (added_notes_insn): New.
        (try_combine): Handle added_notes_insn like added_links_insn.
        Rewrite return value code.
        (distribute_notes): Set added_notes_insn to the earliest insn we added
        a note to.

2017-11-17  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/82621
        * combine.c (try_combine): Do not split PARALLELs of two SETs if the
        dest of one of those SETs is unused.

2017-11-17  Richard Biener  <rguenther@suse.de>

        PR fortran/83017
        * tree-core.h (enum annot_expr_kind): Add annot_expr_parallel_kind.
        * tree-pretty-print.c (dump_generic_node): Handle
        annot_expr_parallel_kind.
        * tree-cfg.c (replace_loop_annotate_in_block): Likewise.
        * gimplify.c (gimple_boolify): Likewise.

2017-11-17  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>

        * config.gcc (extra_headers): Add cet.h for x86 targets.
        * config/i386/cet.h: New file.
        * doc/install.texi: Add --enable-cet/--disable-cet.

2017-11-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83017
        * tree-parloops.c (MIN_PER_THREAD): Use --param parloops-min-per-thread.
        (gen_parallel_loop): Properly count iterations.
        (parallelize_loops): Handle loop->can_be_parallel independent
        of flag_loop_parallelize_all.  Make static profitability test match
        the runtime one.
        * params.def (PARAM_PARLOOPS_MIN_PER_THREAD): New.
        * invoke.texi (parloops-min-per-thread): Document.

2017-11-17  Vineet Gupta  <vgupta@synopsys.com>

        * config/arc/linux.h: GLIBC_DYNAMIC_LINKER update per glibc
        upstreaming review comments.

2017-11-17  Tamar Christina  <tamar.christina@arm.com>

        * expr.c (copy_blkmode_to_reg): Fix bitsize for targets
        with fast unaligned access.
        * doc/sourcebuild.texi (word_mode_no_slow_unalign): New.

2017-11-17  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (cmse_nonsecure_entry_clear_before_return): Allocate
        to_clear_arg_regs_bitmap to the same size as to_clear_bitmap.

2017-11-17  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c (phi_translate_1): Remove redundant constant
        folding of references.

2017-11-17  Qing Zhao  <qing.zhao@oracle.com>

        PR middle-end/78809
        * gimple-fold.c (gimple_fold_builtin_string_compare): Add handling
        of replacing call to strncmp with corresponding call to strcmp when
        meeting conditions.

2017-11-17  Sergey Shalnov  <Sergey.Shalnov@intel.com>

        * config/i386/x86-tune.def (X86_TUNE_AVX256_OPTIMAL): Add tuning
        option prefer-avx256 for skylake-avx512 configuration.
        * config/i386/i386.c (ix86_option_override_internal): Ditto.
        (get_builtin_code_for_version): Ditto.

2017-11-17  Chung-Ju Wu  <jasonwucj@gmail.com>
            Monk Chiang  <sh.chiang04@gmail.com>

        * config/nds32/nds32.h (FIRST_PSEUDO_REGISTER): Modify.
        (FIXED_REGISTERS): Reserve more register numbers.
        (CALL_USED_REGISTERS): Likewise.
        (REG_ALLOC_ORDER): Likewise.
        (REG_CLASS_CONTENTS): Likewise.
        (REGISTER_NAMES): Likewise.

2017-11-17  Chung-Ju Wu  <jasonwucj@gmail.com>
            Kito Cheng  <kito.cheng@gmail.com>

        * config/nds32/nds32-modes.def: Add vector mode V4QI V2HI V8QI V4HI
        V2SI.
        * config/nds32/iterators.md: Add vector mode iterators and attributes.

2017-11-16  Steven Munroe  <munroesj@gcc.gnu.org>

        * config/rs6000/mmintrin.h (_mm_add_pi32[_ARCH_PWR]): Correct
        parameter list for vec_splats.

2017-11-16  Joseph Myers  <joseph@codesourcery.com>

        * doc/invoke.texi (-std=c17): Refer to 2018 expected publication
        date of C17.
        (-std=c18, -std=iso9899:2018, -std=gnu18): Document option aliases.

2017-11-16  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR bootstrap/82856
        * doc/install.texi: Document incompatibility of Perl >=5.6.26
        with the required version of automake 1.11.6.

2017-11-16  Pat Haugen  <pthaugen@us.ibm.com>

        * rs6000/power9.md (power9fpdiv): New automaton and cpu_unit defined
        for it.
        (DU_C2_3_power9): Correct reservation combinations.
        (FP_DIV_power9, VEC_DIV_power9): New.
        (power9-alu): Split out rotate/shift...
        (power9-rot): ...to here, correct dispatch resource.
        (power9-cracked-alu, power9-mul, power9-mul-compare): Correct dispatch
        resource.
        (power9-fp): Correct latency.
        (power9-sdiv): Add div/sqrt resource.
        (power9-ddiv): Correct latency, add div/sqrt resource.
        (power9-sqrt, power9-dsqrt): Add div/sqrt resource.
        (power9-vecfdiv, power9-vecdiv): Correct latency, add div/sqrt
        resource.
        (power9-qpdiv, power9-qpmul): Adjust resource usage.

2017-11-15  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_expand_builtin): Do not do the
        switch statement mapping KF built-ins to TF built-ins if we don't
        have the proper ISA 3.0 assembler support.

2017-11-16  Jan Hubicka  <hubicka@ucw.cz>

        * tree-emutls.c (lower_emutls_data): Remove unused bb_freq.
        (lower_emutls_function_body): Do not compute it.

2017-11-16  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-split.c (split_bb_info): Turn time to sreal.
        (split_point): Likewise.
        (dump_split_point): Likewise.
        (fine_split_points): Likewise.
        (execute_split_functions): Only zero split_bbs; turn time to sreals.

2017-11-16  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-fnsummary.c (analyze_function_body): Accumulate time consistently
        in sreal.

2017-11-16  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (combine_predictions_for_bb): Preserve zero predicted
        edges.
        (expensive_function_p): Remove useless assert.
        (determine_unlikely_bbs): Propagate also forward; determine cold blocks

2017-11-16  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/82588
        PR tree-optimization/82583
        * tree-vrp.c (check_array_ref): Handle flexible array members,
        string literals, and inner indices.
        (search_for_addr_array): Add detail to diagnostics.

2017-11-16  Nathan Sidwell  <nathan@acm.org>

        PR c++/82836
        PR c++/82737
        * tree.h (COPY_DECL_RTL): Rename parms for clarity.
        (SET_DECL_ASSEMBLER_NAME): Forward to
        overwrite_decl_assembler_name.
        (COPY_DECL_ASSEMBLER_NAME): Rename parms for clarity.
        (overwrite_decl_assembler_name): Declare.
        * tree.c (overwrite_decl_assembler_name): New.
        * langhooks-def.h (lhd_overwrite_decl_assembler_name): Declare.
        (LANG_HOOKS_OVERWRITE_DECL_ASSEMBLER_NAME): Provide default.
        (LANG_HOOKS_INITIALIZER): Add it.
        * langhooks.h (struct lang_hooks): Add overwrite_decl_assembler_name.
        * langhooks.c (lhd_set_decl_assembler_name): Use
        SET_DECL_ASSEMBLER_NAME.
        (lhd_overwrite_decl_assembler_name): Default implementation.

2017-11-16  Wilco Dijkstra  <wdijkstr@arm.com>
            Jackson Woodruff  <jackson.woodruff@arm.com>

        PR tree-optimization/71026
        * match.pd: Canonicalize constant multiplies in division.

2017-11-16  Wilco Dijkstra  <wdijkstr@arm.com>

        * opts.c (default_options_table): Add OPT_fomit_frame_pointer entry.
        * common/config/alpha/alpha-common.c (TARGET_OPTION_OPTIMIZATION_TABLE):
        Remove OPT_fomit_frame_pointer entry.
        * common/config/arc/arc-common.c: Likewise.
        * common/config/arm/arm-common.c: Likewise.
        * common/config/avr/avr-common.c: Likewise.
        * common/config/c6x/c6x-common.c: Likewise.
        * common/config/cr16/cr16-common.c: Likewise.
        * common/config/cris/cris-common.c: Likewise.
        * common/config/epiphany/epiphany-common.c: Likewise.
        * common/config/fr30/fr30-common.c: Likewise.
        * common/config/frv/frv-common.c: Likewise.
        * common/config/ia64/ia64-common.c: Likewise.
        * common/config/iq2000/iq2000-common.c: Likewise.
        * common/config/lm32/lm32-common.c: Likewise.
        * common/config/m32r/m32r-common.c: Likewise.
        * common/config/mcore/mcore-common.c: Likewise.
        * common/config/microblaze/microblaze-common.c: Likewise.
        * common/config/mips/mips-common.c: Likewise.
        * common/config/mmix/mmix-common.c: Likewise.
        * common/config/mn10300/mn10300-common.c: Likewise.
        * common/config/nios2/nios2-common.c: Likewise.
        * common/config/pa/pa-common.c: Likewise.
        * common/config/pdp11/pdp11-common.c: Likewise.
        * common/config/powerpcspe/powerpcspe-common.c: Likewise.
        * common/config/riscv/riscv-common.c: Likewise.
        * common/config/rs6000/rs6000-common.c: Likewise.
        * common/config/rx/rx-common.c: Likewise.
        * common/config/s390/s390-common.c: Likewise.
        * common/config/sh/sh-common.c: Likewise.
        * common/config/sparc/sparc-common.c: Likewise.
        * common/config/tilegx/tilegx-common.c: Likewise.
        * common/config/tilepro/tilepro-common.c: Likewise.
        * common/config/v850/v850-common.c: Likewise.
        * common/config/visium/visium-common.c: Likewise.
        * common/config/xstormy16/xstormy16-common.c: Likewise.
        * common/config/xtensa/xtensa-common.c: Likewise.
        * invoke.texi (-fomit-frame-pointer): Update documentation.

2017-11-16  Jan Hubicka  <hubicka@ucw.cz>

        * tree-cfg.c (gimple_find_sub_bbs): Do not compute freq.

2017-11-14  Jan Hubicka  <hubicka@ucw.cz>

        * cfg.c (scale_bbs_frequencies_int,
        cale_bbs_frequencies_gcov_type): Remove.
        * cfg.h (scale_bbs_frequencies_int,
        cale_bbs_frequencies_gcov_type): Remove.

2017-11-14  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-manip.c
        (scale_dominated_blocks_in_loop): Update to profile counts.
        (tree_transform_and_unroll_loop): Likewise.

2017-11-14  Jan Hubicka  <hubicka@ucw.cz>

        * tree-vect-loop-manip.c (vect_do_peeling): Do not use
        scale_bbs_frequencies_int.

2017-11-14  Jan Hubicka  <hubicka@ucw.cz>

        * final.c (compute_alignments): Use counts rather than frequencies.

2017-11-14  Jan Hubicka  <hubicka@ucw.cz>

        * cfgloopanal.c: Include sreal.h
        (average_num_loop_insns): Use counts and sreal for accounting.

2017-11-14  Jan Hubicka  <hubicka@ucw.cz>

        * cfgloopmanip.c (duplicate_loop_to_header_edge): Cleanup profile
        manipulation.

2017-11-16  Chung-Ju Wu  <jasonwucj@gmail.com>
            Kito Cheng  <kito.cheng@gmail.com>

        * config/nds32/constraints.md: Provide more constraints.
        * config/nds32/nds32.h (enum reg_class, REG_CLASS_NAMES,
        REG_CLASS_CONTENTS): Define R5_REG, R8_REG, and FRAME_POINTER_REG to
        support constraints usage.

2017-11-16  Chung-Ju Wu  <jasonwucj@gmail.com>

        * config/nds32/constants.md (UNSPEC_VOLATILE_FUNC_RETURN): Remove.

2017-11-16  Chung-Ju Wu  <jasonwucj@gmail.com>
            Kito Cheng  <kito.cheng@gmail.com>

        * config/nds32/nds32.opt: Add mext-perf, mext-perf2, mext-string.
        * config/nds32/nds32.opt: Refine the layout.
        * config/nds32/nds32.c (TARGET_EXT_PERF, TARGET_EXT_PERF2,
        TARGET_EXT_STRING): Support new options.
        * config/nds32/nds32.h: Likewise.
        * config/nds32/nds32.md: Likewise.
        * config/nds32/nds32-predicates.c: Likewise.
        * config/nds32/constraints.md: Likewise.
        * common/config/nds32/nds32-common.c: Likewise.

2017-11-16  Julia Koval  <julia.koval@intel.com>

        PR target/82983
        * config/i386/gfniintrin.h: Add sse check.
        * config/i386/i386.c (ix86_expand_builtin): Fix gfni check.

2017-11-16  Julia Koval  <julia.koval@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_AVX512VBMI2_SET,
        OPTION_MASK_ISA_AVX512VBMI2_UNSET): New.
        (ix86_handle_option): Handle -mavx512vbmi2.
        * config/i386/cpuid.h: Add bit_AVX512VBMI2.
        * config/i386/driver-i386.c (host_detect_local_cpu): Handle new bit.
        * config/i386/i386-c.c (__AVX512VBMI2__): New.
        * config/i386/i386.c (ix86_target_string): Handle -mavx512vbmi2.
        (ix86_valid_target_attribute_inner_p): Ditto.
        * config/i386/i386.h (TARGET_AVX512VBMI2, TARGET_AVX512VBMI2_P): New.
        * config/i386/i386.opt (mavx512vbmi2): New option.
        * doc/invoke.texi: Add new option.

2017-11-16  Julia Koval  <julia.koval@intel.com>

        * config/i386/gfniintrin.h (_mm_gf2p8mul_epi8, _mm256_gf2p8mul_epi8,
        _mm_mask_gf2p8mul_epi8, _mm_maskz_gf2p8mul_epi8,
        _mm256_mask_gf2p8mul_epi8, _mm256_maskz_gf2p8mul_epi8,
        _mm512_mask_gf2p8mul_epi8, _mm512_maskz_gf2p8mul_epi8,
        _mm512_gf2p8mul_epi8): New intrinsics.
        * config/i386/i386-builtin-types.def
        (V64QI_FTYPE_V64QI_V64QI): New type.
        * config/i386/i386-builtin.def (__builtin_ia32_vgf2p8mulb_v64qi,
        __builtin_ia32_vgf2p8mulb_v64qi_mask, __builtin_ia32_vgf2p8mulb_v32qi,
        __builtin_ia32_vgf2p8mulb_v32qi_mask, __builtin_ia32_vgf2p8mulb_v16qi,
        __builtin_ia32_vgf2p8mulb_v16qi_mask): New builtins.
        * config/i386/sse.md (vgf2p8mulb_*): New pattern.
        * config/i386/i386.c (ix86_expand_args_builtin): Handle new type.

2017-11-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (x86_print_call_or_nop): Emit 5 byte nop
        explicitly as a stream of bytes.

2017-11-15  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/altivec.h (vec_xst_be): New #define.
        * config/rs6000/altivec.md (altivec_vperm_<mode>_direct): Rename
        and externalize from *altivec_vperm_<mode>_internal.
        * config/rs6000/rs6000-builtin.def (XL_BE_V16QI): Remove macro
        instantiation.
        (XL_BE_V8HI): Likewise.
        (XL_BE_V4SI): Likewise.
        (XL_BE_V4SI): Likewise.
        (XL_BE_V2DI): Likewise.
        (XL_BE_V4SF): Likewise.
        (XL_BE_V2DF): Likewise.
        (XST_BE): Add BU_VSX_OVERLOAD_X macro instantiation.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Correct
        all array entries with these keys: VSX_BUILTIN_VEC_XL,
        VSX_BUILTIN_VEC_XL_BE, VSX_BUILTIN_VEC_XST.  Add entries for key
        VSX_BUILTIN_VEC_XST_BE.
        * config/rs6000/rs6000.c (altivec_expand_xl_be_builtin): Remove.
        (altivec_expand_builtin): Remove handling for VSX_BUILTIN_XL_BE_*
        built-ins.
        (altivec_init_builtins): Replace conditional calls to def_builtin
        for __builtin_vsx_ld_elemrev_{v8hi,v16qi} and
        __builtin_vsx_st_elemrev_{v8hi,v16qi} based on TARGET_P9_VECTOR
        with unconditional calls.  Remove calls to def_builtin for
        __builtin_vsx_le_be_<mode>.  Add a call to def_builtin for
        __builtin_vec_xst_be.
        * config/rs6000/vsx.md (vsx_ld_elemrev_v8hi): Convert define_insn
        to define_expand, and add alternate RTL generation for P8.
        (*vsx_ld_elemrev_v8hi_internal): New define_insn based on
        vsx_ld_elemrev_v8hi.
        (vsx_ld_elemrev_v16qi): Convert define_insn to define_expand, and
        add alternate RTL generation for P8.
        (*vsx_ld_elemrev_v16qi_internal): New define_insn based on
        vsx_ld_elemrev_v16qi.
        (vsx_st_elemrev_v8hi): Convert define_insn
        to define_expand, and add alternate RTL generation for P8.
        (*vsx_st_elemrev_v8hi_internal): New define_insn based on
        vsx_st_elemrev_v8hi.
        (vsx_st_elemrev_v16qi): Convert define_insn to define_expand, and
        add alternate RTL generation for P8.
        (*vsx_st_elemrev_v16qi_internal): New define_insn based on
        vsx_st_elemrev_v16qi.

2017-11-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/82990
        * config/i386/i386.c (pass_insert_vzeroupper::gate): Remove
        TARGET_AVX512ER check.
        (ix86_option_override_internal): Set MASK_VZEROUPPER if
        neither -mzeroupper nor -mno-zeroupper is used and
        TARGET_EMIT_VZEROUPPER is set.
        * config/i386/i386.h (TARGET_EMIT_VZEROUPPER): New.
        * config/i386/x86-tune.def: Add X86_TUNE_EMIT_VZEROUPPER.

2017-11-15  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add support for
        folding of vector compares.
        (fold_build_vec_cmp): New helper function.
        (fold_compare_helper): New helper function.
        (builtin_function_type): Add compare builtins to the list of functions
        having unsigned arguments.  Cosmetic updates to comment indentation.
        * config/rs6000/vsx.md (vcmpneb, vcmpneh, vcmpnew): Update to specify
        the not+eq combination.

2017-11-15  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/82726
        PR tree-optimization/70754
        * tree-predcom.c (order_drefs_by_pos): New function.
        (combine_chains): Move code setting has_max_use_after to...
        (try_combine_chains): ...here.  New parameter.  Sort combined chains
        according to position information.
        (tree_predictive_commoning_loop): Update call to above function.
        (update_pos_for_combined_chains, pcom_stmt_dominates_stmt_p): New.

2017-11-15  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/82726
        Revert
        2017-01-23  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/70754
        * tree-predcom.c (stmt_combining_refs): New parameter INSERT_BEFORE.
        (reassociate_to_the_same_stmt): New parameter INSERT_BEFORE.  Insert
        combined stmt before it if not NULL.
        (combine_chains): Process refs reversely and compute dominance point
        for root ref.

        Revert
        2017-02-23  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/79663
        * tree-predcom.c (combine_chains): Process refs in reverse order
        only for ZERO length chains, and add explaining comment.

2017-11-15  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm-cpus.in (armv8_3, ARMv8_3a, armv8.3-a): New
        * config/arm/arm-tables.opt (armv8.3-a): Regenerated.
        * doc/invoke.texi (ARM Options): Add armv8.3-a.

2017-11-15  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm.h (TARGET_DOTPROD): Add arm_arch8_2.

2017-11-15  Martin Liska  <mliska@suse.cz>

        * tree-cfg.c (pass_warn_function_return::execute):
        Compare warn_return_type for greater than zero.

2017-11-15  Sebastian Peryt  <sebastian.peryt@intel.com>

        PR target/82941
        PR target/82942
        * config/i386/i386.c (pass_insert_vzeroupper): Modify gate condition
        to return true on Xeon and not on Xeon Phi.
        (ix86_check_avx256_register): Changed to ...
        (ix86_check_avx_upper_register): ... this. Add extra check for
        VALID_AVX512F_REG_OR_XI_MODE.
        (ix86_avx_u128_mode_needed): Changed
        ix86_check_avx256_register to ix86_check_avx_upper_register.
        (ix86_check_avx256_stores): Changed to ...
        (ix86_check_avx_upper_stores): ... this. Changed
        ix86_check_avx256_register to ix86_check_avx_upper_register.
        (ix86_avx_u128_mode_after): Changed
        avx_reg256_found to avx_upper_reg_found. Changed
        ix86_check_avx256_stores to ix86_check_avx_upper_stores.
        (ix86_avx_u128_mode_entry): Changed
        ix86_check_avx256_register to ix86_check_avx_upper_register.
        (ix86_avx_u128_mode_exit): Ditto.
        * config/i386/i386.h: (host_detect_local_cpu): New define.

2017-11-15  Dominik Infuehr  <dominik.infuehr@theobroma-systems.com>

        * config/arm/xgene1.md (xgene1): Split into automatons
        xgene1_main, xgene1_decoder, xgene1_div, xgene1_simd.
        (xgene1_f_load): Adjust reservations and/or types.
        (xgene1_f_store): Likewise.
        (xgene1_load_pair): Likewise.
        (xgene1_store_pair): Likewise.
        (xgene1_fp_load1): Likewise.
        (xgene1_load1): Likewise.
        (xgene1_store1): Likewise.
        (xgene1_move): Likewise.
        (xgene1_alu): Likewise.
        (xgene1_simd): Likewise.
        (xgene1_bfm): Likewise.
        (xgene1_neon_load1): Likewise.
        (xgene1_neon_store1): Likewise.
        (xgene1_neon_logic): Likewise.
        (xgene1_neon_st1): Likewise.
        (xgene1_neon_ld1r): Likewise.
        (xgene1_alu_cond): Added.
        (xgene1_shift_reg): Likwise.
        (xgene1_bfx): Likewise.
        (xgene1_mul): Split into xgene1_mul32, xgene1_mul64.

2017-11-15  Jakub Jelinek  <jakub@redhat.com>

        PR target/82981
        * internal-fn.c: Include gimple-ssa.h, tree-phinodes.h and
        ssa-iterators.h.
        (can_widen_mult_without_libcall): New function.
        (expand_mul_overflow): If only checking unsigned mul overflow,
        not result, and can do efficiently MULT_HIGHPART_EXPR, emit that.
        Don't use WIDEN_MULT_EXPR if it would involve a libcall, unless
        no other way works.  Add MULT_HIGHPART_EXPR + MULT_EXPR support.
        (expand_DIVMOD): Formatting fix.
        * expmed.h (expand_mult): Add NO_LIBCALL argument.
        * expmed.c (expand_mult): Likewise.  Use OPTAB_WIDEN rather
        than OPTAB_LIB_WIDEN if NO_LIBCALL is true, and allow it to fail.

        PR tree-optimization/82977
        * tree-ssa-strlen.c (strlen_optimize_stmt): Pass a reference to a copy
        constructed temporary to strlen_to_stridx.put.

2017-11-15  Martin Liska  <mliska@suse.cz>

        * configure.ac: Remove -fkeep-inline-functions from coverage_flags.
        * configure: Regenerate.

2017-11-15  Martin Liska  <mliska@suse.cz>

        PR target/82927
        * config/sh/sh-mem.cc: Use proper probability for
        REG_BR_PROB_NOTE.

2017-11-14  Jeff Law  <law@redhat.com>

        * explow.c (anti_adjust_stack_and_probe_stack_clash): Avoid probing
        the red zone for stack_clash_protection_final_dynamic_probe targets
        when the total dynamic stack size is zero bytes.

        * tree-ssa-threadupdate.c (thread_through_all_blocks): Thread
        blocks is post order.

2017-11-15  Alexandre Oliva  <aoliva@redhat.com>

        * dumpfile.h (TDF_COMPARE_DEBUG): New.
        * final.c (rest_of_clean_state): Set it for the
        -fcompare-debug dump.
        * tree-pretty-print.c (dump_generic_node): Omit OBJ_TYPE_REF
        class when TDF_COMPARE_DEBUG is set.

        * dwarf2out.c (gen_producer_string): Discard
        OPT_fcompare_debug.

2017-11-15  Joseph Myers  <joseph@codesourcery.com>

        PR c/81156
        * doc/extend.texi (Other Builtins): Document __builtin_tgmath.
        * ginclude/tgmath.h (__tg_cplx, __tg_ldbl, __tg_dbl, __tg_choose)
        (__tg_choose_2, __tg_choose_3, __TGMATH_REAL_1_2)
        (__TGMATH_REAL_2_3): Remove macros.
        (__TGMATH_CPLX, __TGMATH_CPLX_2, __TGMATH_REAL, __TGMATH_REAL_2)
        (__TGMATH_REAL_3, __TGMATH_CPLX_ONLY): Define using
        __builtin_tgmath.
        (frexp, ldexp, nexttoward, scalbn, scalbln): Define using
        __TGMATH_REAL_2.
        (remquo): Define using __TGMATH_REAL_3.

2017-11-14  Jeff Law  <law@redhat.com>

        * vr-values.c: New file with contents extracted from tree-vrp.c.
        * Makefile.in (OBJS): Add vr-values.o
        * tree-vrp.h (set_value_range_to_nonnull): Prototype.
        (set_value_range, set_and_canonicalize_value_range): Likewise.
        (vrp_bitmap_equal_p, range_is_nonnull): Likewise.
        (value_range_constant_singleton, symbolic_range_p): Likewise.
        (compare_values, compare_values_warnv, vrp_val_is_min): Likewise.
        (vrp_val_is_max, copy_value_range, set_value_range_to_value): Likewise.
        (extract_range_from_binary_expr_1, vrp_val_min, vrp_val_max): Likewise.
        (set_value_range_to_null, range_int_cst_p, opreand_less_p): Likewise.
        (find_case_label_range, find_case_label_index): Likewise.
        (zero_nonzero_bits_from_vr, overflow_comparison_p): Likewise.
        (range_int_cst_singleton_p, value_inside_range): Likewise.
        (get_single_symbol): Likewise.
        (switch_update): Move structure definition here.
        (to_remove_edges, to_update_switch_stmts): Provide externs.
        * tree-vrp.c: Move all methods for vr-values class to vr-values.c
        (vrp_val_max, vrp_val_min, vrp_val_is_max): Make externally visible.
        (vrp_val_is_min, set_value_range): Likewise.
        (set_and_canonicalize_value_range, copy_value_range): Likewise.
        (set_value_range_to_value, set_value_range_to_nonnull): Likewise.
        (set_value_range_to_null, vrp_bitmap_equal_p): Likewise.
        (range_is_nonnull, range_int_cst_p): Likewwise.
        (range_int_cst_singleton_p, symbolic_range_p): Likewise.
        (get_single_symbol, operand_less_p): Likewise
        (compare_values_warnv, compare_values): Likewise.
        (value_inside_range, value_range_constant_singleton): Likewise.
        (zero_nonzero_bitgs_from_vr): Likewise.
        (extract_range_from_binary_expr_1): Likewise.
        (overflow_comparison_p): Likewise.
        (to_remove_edges, to_update_switch_stmts): Likewise.
        (find_case_label-index, find_case_label_range): Likewise.
        (switch_update, set_value_range_to_nonnegative): Remove.
        (set_value_range_to_truthvalue): Likewise.
        (symbolic_range_based_on_p, gimple_assign_nonzero_p): Likewise.
        (gimple_stmt_nonzero_p, compare_ranges): Likewise.
        (compare_range_with_value, vrp_valueize, vrp_valueize_1): Likewise.
        (find_case_label_ranges, test_for_singularity): Likewise.
        (range_fits_type_p, simplify_conversion_using_ranges): LIkewise.
        (x_vr_values): Move to its remaining use site.

2017-11-10  Jeff Law  <law@redhat.com>

        * vr-values.h (VR_INITIALIZER): Move #define here.
        * gimple-ssa-evrp.c: New file with contents extracted from tree-vrp.c
        * Makefile.in (OBJS): Add tree-evrp.o
        * tree-vrp.h (assert_info): Move structure definition here.
        (set_value_range_to_varying): Prototype.
        (vrp_operand_equal_p, range_includes_zero_p): Likewise.
        (infer_value_range, register_edge_assert_for): Likewise.
        (stmt_interesting_for_vrp): Likewise.
        * tree-vrp.c: Move all methods for evrp class into gimple-ssa-evrp.c.
        (set_value_range_to_varying): No longer static.
        (vrp_operand_equal_p, range_includes_zero_p): Likewise.
        (infer_value_range, register_edge_assert_for): Likewise.

2017-11-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.md (bswapdi2): On 32-bit ISA 3.0, don't
        generate the XXBRD instruction.

        * config/rs6000/rs6000-c.c (is_float128_p): New helper function.
        (rs6000_builtin_type_compatible): Treat _Float128 and long double
        as being compatible if -mabi=ieeelongdouble.
        * config/rs6000/rs6000-builtin.def (BU_FLOAT128_HW_1): New macros
        to setup float128 built-ins with hardware support.
        (BU_FLOAT128_HW_2): Likewise.
        (BU_FLOAT128_HW_3): Likewise.
        (BU_FLOAT128_HW_VSX_1): Likewise.
        (BU_FLOAT128_HW_VSX_2): Likewise.
        (scalar_extract_expq): Change float128 built-in functions to
        accommodate having both KFmode and TFmode functions.  Use the
        KFmode variant as the default.
        (scalar_extract_sigq): Likewise.
        (scalar_test_neg_qp): Likewise.
        (scalar_insert_exp_q): Likewise.
        (scalar_insert_exp_qp): Likewise.
        (scalar_test_data_class_qp): Likewise.
        (sqrtf128_round_to_odd): Delete processing the round to odd
        built-in functions as special built-in functions, and define them
        as float128 built-ins.  Use the KFmode variant as the default.
        (truncf128_round_to_odd): Likewise.
        (addf128_round_to_odd): Likewise.
        (subf128_round_to_odd): Likewise.
        (mulf128_round_to_odd): Likewise.
        (divf128_round_to_odd): Likewise.
        (fmaf128_round_to_odd): Likewise.
        * config/rs6000/rs6000.c (rs6000_expand_binop_builtin): Add
        support for KFmode and TFmode xststdcqp calls.
        (rs6000_expand_builtin): If long double is IEEE 128-bit floating
        point, switch the built-in handlers for the get/set float128
        exponent, get float128 mantissa, float128 test built-ins, and the
        float128 round to odd built-in functions.  Eliminate creating the
        float128 round to odd built-in functions as special built-ins.
        (rs6000_init_builtins): Eliminate special creation of the float128
        round to odd built-in functions.
        * config/rs6000/vsx.md (xsxexpqp_<mode>): Change float128 built-in
        function insns to support both TFmode and KFmode variants.
        (xsxsigqp_<mode>): Likewise.
        (xsiexpqpf_<mode>): Likewise.
        (xsiexpqp_<mode>): Likewise.
        (xststdcqp_<mode>): Likewise.
        (xststdcnegqp_<mode>): Likewise.
        (xststdcqp_<mode>): Likewise.

2017-11-14  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-threadupdate.c (compute_path_counts): Remove
        unused path_in_freq_ptr parameter.
        (ssa_fix_duplicate_block_edges): Do not pass around path_in_freq

2017-11-14  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline.c (edge_badness): Dump sreal frequency.
        (compute_inlined_call_time): Match natural implementaiton ...
        * ipa-fnsummary.c (estimate_edge_size_and_time): ... here; remove
        forgotten division by CGRAPH_FREQ_BASE.

2017-11-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc (*-*-solaris2*): Enable default_use_cxa_atexit since
        Solaris 11.  Update comment.
        * configure.ac (gcc_cv_ld_pid): Adapt comment for Solaris 12
        renaming.
        * config/sol2.h (STARTFILE_SPEC): Likewise.
        * configure: Regenerate.

2017-11-14  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000.c (swap_endian_selector_for_mode): Remove
        le_ and be_ prefixes to swap* variables.  Remove
        if (VECTOR_ELT_ORDER_BIG) statement. Remove E_V16QImode case
        statements.

2017-11-14  Jason Merrill  <jason@redhat.com>

        Support GTY((cache)) on hash_map.
        * hash-traits.h (ggc_remove): Add ggc_maybe_mx member function.
        (ggc_cache_remove): Override it instead of ggc_mx.
        * hash-table.h (gt_ggc_mx): Call it instead of ggc_mx.
        (gt_cleare_cache): Call ggc_mx instead of gt_ggc_mx.
        * hash-map-traits.h (simple_hashmap_traits): Add maybe_mx member.
        (simple_cache_map_traits): Override maybe_mx.
        * hash-map.h (hash_entry): Add ggc_maybe_mx and keep_cache_entry.
        (hash_map): Friend gt_cleare_cache.
        (gt_cleare_cache): New.
        * tree.h (tree_cache_traits): New hash_map traits class.
        (tree_cache_map): New typedef.

2017-11-14  Richard Biener  <rguenther@suse.de>

        * tree-cfgcleanup.c (cleanup_control_expr_graph): Remove first_p
        paramter and handling.
        (cleanup_control_flow_bb): Likewise.
        (cleanup_control_flow_pre): New helper performing a DFS walk
        to call cleanup_control_flow_bb in PRE order.
        (cleanup_tree_cfg_1): Do the first phase of cleanup_control_flow_bb
        via cleanup_control_flow_pre.

2017-11-14  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64-simd.md
        (aarch64_simd_bsl<mode>_internal): Remove DImode.
        (*aarch64_simd_bsl<mode>_alt): Likewise.
        (aarch64_simd_bsldi_internal): New.
        (aarch64_simd_bsldi_alt): Likewise.

2017-11-13  Jan Hubicka  <hubicka@ucw.cz>

        * tracer.c (better_p): Do not compare frequencies.
        * reg-stack.c (better_edge): Likewise.
        * shrink-wrap.c (try_shrink_wrapping): Do not convert to gcov counts
        and back.

2017-11-13  Jan Hubicka  <hubicka@ucw.cz>

        * auto-profile.c (afdo_annotate_cfg): Use update_max_bb_count.
        * cgraphunit.c (cgraph_node::expand_thunk): Use update_max_bb_count.
        * ipa-utils.c (ipa_merge_profiles): Use update_max_bb_count.
        * lto-streamer-in.c (input_function): Use update_max_bb_count.
        * omp-expand.c (expand_omp_taskreg): Use update_max_bb_count.
        * predict.c (maybe_hot_frequency_p): Inline to ...
        (maybe_hot_count_p): ... here; rewrite to counts.
        (counts_to_freqs): Rename to ...
        (update_max_bb_count): ... this one.
        (expensive_function_p): Use counts.
        (estimate_bb_frequencies): Update.
        (rebuild_frequencies): Update.
        * predict.h (counts_to_freqs): Rename to ...
        (update_max_bb_count): ... this one.
        * profile.c (compute_branch_probabilities): Add debug info
        * tree-inline.c (expand_call_inline): Update debug info.
        (optimize_inline_calls): Use update_max_bb_count..
        (tree_function_versioning): Use update_max_bb_count..
        * value-prof.c (gimple_value_profile_transformations):
        Do not use update_max_bb_count.

2017-11-13  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline.c (compute_uninlined_call_time, compute_inlined_call_time):
        always use frequencies.

2017-11-13  Jan Hubicka  <hubicka@ucw.cz>

        * bb-reorder.c: Remove frequencies from comments.
        (better_edge_p): Use profile counts.
        (find_traces): Dump profile counts.
        (rotate_loop): Use profile counts.
        (find_traces_1_round): Likewise.
        (connect_better_edge_p): Use counts instead of probabilities for
        reverse walk.
        (copy_bb_p): Drop early check for non-0 frequency.
        (sanitize_hot_paths): Update comments.

2017-11-13  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-split.c (struct split_point): Add count.
        (consider_split): Do not compute incoming frequency; compute incoming
        count and store it to split_point.
        (split_function): Set count of the call to split part correctly.

2017-11-13  Carl Love  <cel@us.ibm.com>

        * config/rs6000/altivec.md (altivec_vsumsws_be): Add define_expand.

2017-11-13  Tom Tromey  <tom@tromey.com>

        * doc/cpp.texi (Variadic Macros): Document __VA_OPT__.

2017-11-13  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins):
        Add support for builtins:
        unsigned int vec_first_{,miss}_match_{,or_eos}index,
        vector {un,}signed {char,int,short},
        vector {un,}signed {char,int,short}) arguments.
        * config/rs6000/rs6000-builtin.def (VFIRSTMATCHINDEX,
        VFIRSTMATCHOREOSINDEX, VFIRSTMISMATCHINDEX, VFIRSTMISMATCHOREOSINDEX):
        Add BU_P9V_AV_2 expansions for the builtins.
        * config/rs6000/altivec.h (vec_first_match_index,
        vec_first_mismatch_index, vec_first_match_or_eos_index,
        vec_first_mismatch_or_eos_index): Add #defines for the builtins.
        * config/rs6000/rs6000-protos.h (bytes_in_mode): Add
        new extern declaration.
        * config/rs6000/rs6000.c (bytes_in_mode): Add new function.
        * config/rs6000/vsx.md (first_match_index_<mode>,
        first_match_or_eos_index_<mode>, first_mismatch_index_<mode>,
        first_mismatch_or_eos_index_<mode>): Add define expand.
        (vctzlsbb_<mode>): Add mode field to define_insn for vctzlsbb.
        * doc/extend.texi: Update the built-in documenation file for the new
        built-in functions.

2017-11-13  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * match.pd: Convert fminf<N>, fminf<N>x, fmax<N>, and fmax<N>x
        into the min/max operations for _Float<N> and _Float<N>X types.

2017-11-13  Eric Botcazou  <ebotcazou@adacore.com>

        PR lto/81351
        * dwarf2out.c (do_eh_frame): New static variable.
        (dwarf2out_begin_prologue): Set it.
        (dwarf2out_frame_finish): Test it instead of dwarf2out_do_eh_frame.

2017-11-13  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-coalesce.c (coalesce_cost): Fix formating.

        * tree-ssa-sink.c (select_best_block): Do not use frequencies.

2017-11-13  Eric Botcazou  <ebotcazou@adacore.com>

        PR lto/81351
        * debug.h (dwarf2out_do_eh_frame): Declare.
        * dwarf2cfi.c (dwarf2out_do_eh_frame): New predicate.
        (dwarf2out_do_frame): Use it.
        (dwarf2out_do_cfi_asm): Likewise.
        * dwarf2out.c (dwarf2out_frame_finish): Likewise.
        (dwarf2out_assembly_start): Likewise.
        (dwarf2out_begin_prologue): Fix comment.
        * toplev.c (compile_file): Always call dwarf2out_frame_finish
        if the target needs either debug or unwind DWARF2 info.
        * lto-opts.c (lto_write_options): Do not save -fexceptions,
        -fnon-call-exceptions, -ffp-contract, -fmath-errno, -fsigned-zeros,
        -ftrapping-math, -ftrapv and -fwrapv.

2017-11-13  Jan Hubicka  <hubicka@ucw.cz>

        * cgraph.c (cgraph_edge::sreal_frequency): New function.
        * cgraph.h (cgraph_edge::sreal_frequency): Declare.
        * ipa-fnsummary.c (dump_ipa_call_summary): Use sreal_frequency.
        (estimate_edge_size_and_time): Likewise.
        (ipa_merge_fn_summary_after_inlining): Likewise.
        * ipa-inline.c (cgraph_freq_base_rec): Remove.
        (compute_uninlined_call_time): Use sreal_frequency.
        (compute_inlined_call_time): Likewise.
        (ipa_inline): Do not initialize cgraph_freq_base_rec.
        * profile-count.c: Include sreal.h.
        (profile_count::to_sreal_scale): New.
        * profile-count.h: Forward declare sreal.
        (profile_count::to_sreal_scale): Declare.

2017-11-13  Nathan Sidwell  <nathan@acm.org>

        * diagnostic.c (maybe_line_and_column): New.
        (diagnostic_get_location_text): Use it.
        (diagnostic_report_current_module): Likewise.
        (test_diagnostic_get_location_text): Add tests.

2017-11-13  Luis Machado  <luis.machado@linaro.org>

        * doc/md.texi (Specifying processor pipeline description): Fix
        incorrect latency for the div instruction example.

2017-11-13  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/78821
        * gimple-ssa-store-merging.c (compatible_load_p): Don't require
        that bit_not_p is the same.
        (imm_store_chain_info::coalesce_immediate_stores): Likewise.
        (split_group): Count precisely bit_not_p bits in each statement.
        (invert_op): New function.
        (imm_store_chain_info::output_merged_store): Use invert_op to
        emit BIT_XOR_EXPR with a xor_mask instead of BIT_NOT_EXPR if some
        but not all orig_stores have BIT_NOT_EXPR in the corresponding spots.

2017-11-13  Martin Liska  <mliska@suse.cz>

        * gcov.c (struct coverage_info): Remove typedef of coverage_t.
        (struct source_info): Likewise.
        (add_branch_counts): Likewise.
        (add_line_counts): Likewise.
        (function_summary): Likewise.
        (output_intermediate_line): Likewise.
        (generate_results): Likewise.

2017-11-13  Martin Liska  <mliska@suse.cz>

        * gcov.c (struct block_info): Remove typedef for block_t.
        (struct line_info): Likewise.
        (line_info::has_block): Likewise.
        (EXIT_BLOCK): Likewise.
        (unblock): Likewise.
        (circuit): Likewise.
        (get_cycles_count): Likewise.
        (process_file): Likewise.
        (read_graph_file): Likewise.
        (solve_flow_graph): Likewise.
        (find_exception_blocks): Likewise.
        (add_line_counts): Likewise.
        (accumulate_line_info): Likewise.
        (output_line_details): Likewise.

2017-11-13  Martin Liska  <mliska@suse.cz>

        * gcov.c (struct arc_info): Remove typedef for arc_t.
        (struct line_info): Likewise.
        (add_branch_counts): Likewise.
        (output_branch_count): Likewise.
        (function_info::~function_info): Likewise.
        (circuit): Likewise.
        (output_intermediate_line): Likewise.
        (read_graph_file): Likewise.
        (solve_flow_graph): Likewise.
        (find_exception_blocks): Likewise.
        (add_line_counts): Likewise.
        (accumulate_line_info): Likewise.
        (output_line_details): Likewise.
        (output_function_details): Likewise.

2017-11-13  Martin Liska  <mliska@suse.cz>

        * gcov.c (struct function_info): Remove typedef for function_t.
        (struct source_info): Likewise.
        (source_info::get_functions_at_location): Likewise.
        (solve_flow_graph): Likewise.
        (find_exception_blocks): Likewise.
        (add_line_counts): Likewise.
        (output_intermediate_file): Likewise.
        (process_file): Likewise.
        (generate_results): Likewise.
        (release_structures): Likewise.
        (read_graph_file): Likewise.
        (read_count_file): Likewise.
        (accumulate_line_counts): Likewise.
        (output_lines): Likewise.

2017-11-13  Martin Liska  <mliska@suse.cz>

        * gcov.c (function_info::function_info): Remove num_counts
        and add vector<gcov_type>.
        (function_info::~function_info): Use the vector.
        (process_file): Likewise.
        (read_graph_file): Likewise.
        (read_count_file): Likewise.
        (solve_flow_graph): Likewise.

2017-11-13  Martin Liska  <mliska@suse.cz>

        * gcov.c (function_info::is_artificial): New function.
        (process_file): Erase all artificial early.
        (generate_results): Skip as all artificial are already
        removed.

2017-11-13  Martin Liska  <mliska@suse.cz>

        * gcov.c (read_graph_file): Store to global vector of functions.
        (read_count_file): Iterate the vector.
        (process_file): Likewise.
        (generate_results): Likewise.
        (release_structures): Likewise.

2017-11-13  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/82954
        * gimple-ssa-store-merging.c
        (imm_store_chain_info::coalesce_immediate_stores): If
        !infof->ops[N].base_addr, split group if info->ops[N].base_addr.

2017-11-13  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/aarch64/aarch64-simd.md (aarch64_store_lane0<mode>):
        Upddate call to ENDIAN_LANE_N.
        (aarch64_<sur>dot_lane<vsi2qi>): Use aarch64_endian_lane_rtx.
        (aarch64_<sur>dot_laneq<vsi2qi>): Likewise.
        (*aarch64_simd_vec_copy_lane<mode>): Update calls to ENDIAN_LANE_N
        and use aarch64_endian_lane_rtx.
        (*aarch64_simd_vec_copy_lane_<vswap_width_name><mode>): Likewise.

2017-11-12  Tom de Vries  <tom@codesourcery.com>

        * config/riscv/riscv.h (ASM_OUTPUT_LABELREF): Wrap in do {} while (0).

2017-11-12  Tom de Vries  <tom@codesourcery.com>

        * config/elfos.h (ASM_OUTPUT_ASCII): Remove semicolon after macro body.

2017-11-12  Tom de Vries  <tom@codesourcery.com>

        * config/cr16/cr16.h (ASM_OUTPUT_LABELREF): Remove semicolon after macro
        body.
        * config/powerpcspe/xcoff.h (ASM_OUTPUT_LABELREF): Same.
        * config/rs6000/xcoff.h (ASM_OUTPUT_LABELREF): Same.
        * defaults.h (ASM_OUTPUT_LABELREF): Same.

2017-11-11  Martin Sebor  <msebor@redhat.com>

        PR c/81117
        * doc/extend.texi (attribute nonstring): Remove spurious argument.

        PR bootstrap/82948
        * prefic.c (translate_name): Replace strncpy with memcpy to
        avoid -Wstringop-truncation.

2017-11-10  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-im.c (execute_sm_if_changed): Do not compute freq_sum.

2017-11-10  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (maybe_hot_frequency_p): Do not use cfun.

2017-11-10  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-tail-merge.c (replace_block_by): Fix and re-enable profile
        merging.

2017-11-10  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.md (bswaphi2_reg): On ISA 3.0 systems,
        enable generating XXBRH if the value is in a vector register.
        (bswapsi2_reg): On ISA 3.0 systems, enable generating XXBRW if the
        value is in a vector register.
        (bswapdi2_reg): On ISA 3.0 systems, always use XXBRD to do
        register to register bswap64's instead of doing the GPR sequence
        used on previous machines.
        (bswapdi2_xxbrd): New insn.
        (bswapdi2_reg): Disallow on ISA 3.0.
        (register to register bswap64 splitter): Do not split the insn on
        ISA 3.0 systems that use XXBRD.

2017-11-10  Martin Sebor  <msebor@redhat.com>

        PR c/81117
        * config/darwin-c.c (framework_construct_pathname): Replace strncpy
        with memcpy.
        (find_subframework_file): Same.

2017-11-10  Jan Hubicka  <hubicka@ucw.cz>

        * auto-profile.c (afdo_indirect_call): Drop frequency.
        * cgraph.c (symbol_table::create_edge): Drop frequency argument.
        (cgraph_node::create_edge): Drop frequency argument.
        (cgraph_node::create_indirect_edge): Drop frequency argument.
        (cgraph_edge::make_speculative): Drop frequency arguments.
        (cgraph_edge::resolve_speculation): Do not update frequencies
        (cgraph_edge::dump_edge_flags): Do not dump frequency.
        (cgraph_node::dump): Check consistency in IPA mode.
        (cgraph_edge::maybe_hot_p): Use IPA counter.
        (cgraph_edge::verify_count_and_frequency): Rename to ...
        (cgraph_edge::verify_count): ... this one; drop frequency checking.
        (cgraph_node::verify_node): Update.
        * cgraph.h (struct cgraph_edge): Drop frequency.
        (cgraph_edge::frequency): New function.
        * cgraphbuild.c (pass_build_cgraph_edges::execute): Donot pass
        frequencies.
        (cgraph_edge::rebuild_edges): Likewise.
        * cgraphclones.c (cgraph_edge::clone): Scale only counts.
        (duplicate_thunk_for_node): Do not pass frequency.
        (cgraph_node::create_clone): Scale only counts.
        (cgraph_node::create_virtual_clone): Do not pass frequency.
        (cgraph_node::create_edge_including_clones): Do not pass frequency.
        (cgraph_node::create_version_clone): Do not pass frequency.
        * cgraphunit.c (cgraph_node::analyze): Do not pass frequency.
        (cgraph_node::expand_thunk): Do not pass frequency.
        (cgraph_node::create_wrapper): Do not pass frequency.
        * gimple-iterator.c (update_call_edge_frequencies): Do not pass
        frequency.
        * gimple-streamer-in.c (input_bb): Scale only IPA counts.
        * ipa-chkp.c (chkp_produce_thunks): Do not pass frequency.
        * ipa-cp.c (ipcp_lattice::print): Use frequency function.
        (gather_caller_stats): Use frequency function.
        (ipcp_cloning_candidate_p): Use frequency function.
        (ipcp_propagate_stage): Use frequency function.
        (get_info_about_necessary_edges): Use frequency function.
        (update_profiling_info): Update only IPA profile.
        (update_specialized_profile): Use frequency functoin.
        (perhaps_add_new_callers): Update only IPA profile.
        * ipa-devirt.c (ipa_devirt): Use IPA profile.
        * ipa-fnsummary.c (redirect_to_unreachable): Do not set frequrency.
        (dump_ipa_call_summary): Use frequency function.
        (estimate_edge_size_and_time): Use frequency function.
        (ipa_merge_fn_summary_after_inlining): Use frequency function.
        * ipa-inline-analysis.c (do_estimate_edge_time): Use IPA profile.
        * ipa-inline-transform.c (update_noncloned_frequencies): Rename to ..
        (update_noncloned_counts): ... ths one; scale counts only.
        (clone_inlined_nodes): Do not scale frequency.
        (inline_call): Do not pass frequency.
        * ipa-inline.c (compute_uninlined_call_time): Use IPA profile.
        (compute_inlined_call_time): Use IPA profile.
        (want_inline_small_function_p): Use IPA profile.
        (want_inline_self_recursive_call_p): Use IPA profile.
        (edge_badness): Use IPA profile.
        (lookup_recursive_calls): Use IPA profile.
        (recursive_inlining): Do not pass frequency.
        (resolve_noninline_speculation): Do not update frequency.
        (inline_small_functions): Collect max of IPA profile.
        (dump_overall_stats): Dump IPA porfile.
        (dump_inline_stats): Dump IPA porfile.
        (ipa_inline): Collect IPA stats.
        * ipa-inline.h (clone_inlined_nodes): Update prototype.
        * ipa-profile.c (ipa_propagate_frequency_1): Use frequency function.
        (ipa_propagate_frequency): Use frequency function.
        (ipa_profile): Cleanup.
        * ipa-prop.c (ipa_make_edge_direct_to_target): Do not pass frequency
        * ipa-utils.c (ipa_merge_profiles): Merge all profiles.
        * lto-cgraph.c (lto_output_edge): Do not stream frequency.
        (input_node): Do not stream frequency.
        (input_edge): Do not stream frequency.
        (merge_profile_summaries): Scale only IPA profiles.
        * omp-simd-clone.c (simd_clone_adjust): Do not pass frequency.
        * predict.c (drop_profile): Do not recompute frequency.
        * trans-mem.c (ipa_tm_insert_irr_call): Do not pass frequency.
        (ipa_tm_insert_gettmclone_call): Do not pass frequency.
        * tree-cfg.c (execute_fixup_cfg): Drop profile to global0 if needed.
        * tree-chkp.c (chkp_copy_bounds_for_assign): Do not pass frequency.
        * tree-emutls.c (gen_emutls_addr): Do not pass frequency.
        * tree-inline.c (copy_bb): Do not scale frequency.
        (expand_call_inline): Do not scale frequency.
        (tree_function_versioning): Do not scale frequency.
        * ubsan.c (ubsan_create_edge): Do not pass frequency.

2017-11-10  Julia Koval  <julia.koval@intel.com>

        * config/i386/gfniintrin.h (_mm_gf2p8affine_epi64_epi8)
        (_mm256_gf2p8affine_epi64_epi8, _mm_mask_gf2p8affine_epi64_epi8)
        (_mm_maskz_gf2p8affine_epi64_epi8, _mm256_mask_gf2p8affine_epi64_epi8)
        (_mm256_maskz_gf2p8affine_epi64_epi8)
        (_mm512_mask_gf2p8affine_epi64_epi8, _mm512_gf2p8affine_epi64_epi8)
        (_mm512_maskz_gf2p8affine_epi64_epi8): New intrinsics.
        * config/i386/i386-builtin.def (__builtin_ia32_vgf2p8affineqb_v64qi)
        (__builtin_ia32_vgf2p8affineqb_v32qi)
        (__builtin_ia32_vgf2p8affineqb_v16qi): New builtins.
        * config/i386/sse.md (vgf2p8affineqb_<mode><mask_name>): New pattern.

2017-11-10  Tamar Christina  <tamar.christina@arm.com>

        PR target/82641
        * config/arm/arm.c
        (arm_option_override): Refactor.
        (arm_option_reconfigure_globals): New.
        (arm_options_perform_arch_sanity_checks): New.
        * config/arm/arm-protos.h (arm_option_reconfigure_globals):
        New prototype.
        (arm_options_perform_arch_sanity_checks): Likewise

2017-11-10  Pat Haugen  <pthaugen@us.ibm.com>

        * rs6000/power9.md (power9-qpdiv): Correct DFU pipe usage.
        (power9-qpmul): New.
        * rs6000/rs6000.md ("type" attr): Add qmul.
        (mul<mode>3, fma<mode>4_hw, *fms<mode>4_hw, *nfma<mode>4_hw,
        *nfms<mode>4_hw, mul<mode>3_odd, fma<mode>4_odd, *fms<mode>4_odd,
        *nfma<mode>4_odd, *nfms<mode>4_odd): Change type to qmul.

2017-11-10  Martin Sebor  <msebor@redhat.com>

        PR c/81117
        * builtins.c (compute_objsize): Handle arrays that
        compute_builtin_object_size likes to fail for.  Make extern.
        * builtins.h (compute_objsize): Declare.
        (check_strncpy_sizes): New function.
        (expand_builtin_strncpy): Call check_strncpy_sizes.
        * gimple-fold.c (gimple_fold_builtin_strncpy): Implement
        -Wstringop-truncation.
        (gimple_fold_builtin_strncat): Same.
        * gimple.c (gimple_build_call_from_tree): Set call location.
        * tree-ssa-strlen.c (strlen_to_stridx): New global variable.
        (maybe_diag_bound_equal_length, is_strlen_related_p): New functions.
        (handle_builtin_stxncpy, handle_builtin_strncat): Same.
        (handle_builtin_strlen): Use strlen_to_stridx.
        (strlen_optimize_stmt): Handle flavors of strncat, strncpy, and
        stpncpy.
        Use strlen_to_stridx.
        (pass_strlen::execute): Release strlen_to_stridx.
        * doc/invoke.texi (-Wsizeof-pointer-memaccess): Document enhancement.
        (-Wstringop-truncation): Document new option.

2017-11-10  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/82702
        * gcov.c (main): Handle intermediate files in a different
        way.
        (get_gcov_intermediate_filename): New function.
        (output_gcov_file): Remove support of intermediate files.
        (generate_results): Allocate intermediate file.
        (release_structures): Clean-up properly fn_end.
        (output_intermediate_file): Start iterating with line 1.

2017-11-10  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/82929
        * gimple-ssa-store-merging.c (struct store_immediate_info): Add
        ops_swapped_p non-static data member.
        (store_immediate_info::store_immediate_info): Clear it.
        (imm_store_chain_info::coalesce_immediate_stores): If swapping
        ops set ops_swapped_p.
        (count_multiple_uses): Handle ops_swapped_p.

2017-11-10  Martin Liska  <mliska@suse.cz>

        * coverage.c (coverage_init): Stream information about
        support of has_unexecuted_blocks.
        * doc/gcov.texi: Document that.
        * gcov-dump.c (dump_gcov_file): Support it in gcov_dump tool.
        * gcov.c (read_graph_file): Likewise.
        (output_line_beginning): Fix a small issue with
        color output.

2017-11-10  Bin Cheng  <bin.cheng@arm.com>

        * tree-predcom.c (determine_roots_comp): Avoid memory leak by freeing
        reference of trivial component.

2017-11-10  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/82916
        * gimple-ssa-store-merging.c
        (pass_store_merging::terminate_all_aliasing_chains): For
        gimple_store_p stmts also call refs_output_dependent_p.

        PR rtl-optimization/82913
        * compare-elim.c (try_merge_compare): Punt if def_insn is not
        single set.

2017-11-09  Jeff Law  <law@redhat.com>

        * vr-values.h: New file with vr_values class.
        * tree-vrp.c: Include vr-values.h
        (vrp_value_range_pool, vrp_equiv_obstack, num_vr_values): Move static
        data objects into the vr_values class.
        (vr_value, values_propagated, vr_phi_edge_counts): Likewise.
        (get_value_range): Make it a member function within vr_values class.
        (set_defs_to_varying, update_value_range, add_equivalence): Likewise.
        (vrp_stmt_computes_nonzero_p, op_with_boolean_value_range_p): Likewise.
        (op_with_constant_singleton_value_range): Likewise.
        (extract_range_for_var_from_comparison_expr): Likewise.
        (extract_range_from_assert, extract_range_from_ssa_name): Likewise.
        (extract_range_from_binary_expr): Likewise.
        (extract_range_from_unary_expr): Likewise.
        (extract_range_from_cond_expr, extrat_range_from_comparison): Likewise.
        (check_for_binary_op_overflow, extract_range_basic): Likewise.
        (extract_range_from_assignment, adjust_range_with_scev): Likewise.
        (dump_all_value_ranges, get_vr_for_comparison): Likewise.
        (compare_name_with_value, compare_names): Likewise.
        (vrp_evaluate_conditional_warnv_with_ops_using_ranges): Likewise.
        (vrp_evaluate_conditional_warnv_with_ops): Likewise.  Remove prototype.
        (vrp_evaluate_conditional, vrp_visit_cond_stmt): Likewise.
        (vrp_visit_switch_stmt, extract_range_from_stmt): Likewise.
        (extract_range_from_phi_node): Likewise.
        (simplify_truth_ops_using_ranges): Likewise.
        (simplify_div_or_mod_using_ranges): Likewise.
        (simplify_min_or_max_using_ranges, simplify_abs_using_ranges): Likewise.
        (simplify_bit_ops_using_ranges, simplify_cond_using_ranges_1): Likewise.
        (simplify_cond_using_ranges_2, simplify_switch_using_ranges): Likewise.
        (simplify_float_conversion_using_ranges): Likewise.
        (simplify_internal_call_using_ranges): Likewise.
        (two_valued_val_range_p, simplify_stmt_using_ranges): Likewise.
        (vrp_visit_assignment_or_call): Likewise.  Smuggle class instance
        poitner via x_vr_values for calls into gimple folder.
        (vrp_initialize_lattice): Make this the vr_values ctor.
        (vrp_free_lattice): Make this the vr_values dtor.
        (set_vr_value): New function.
        (class vrp_prop): Add vr_values data member.  Add various member
        functions as well as member functions that delegate to vr_values.
        (check_array_ref): Make a member function within vrp_prop class.
        (search_for_addr_array, vrp_initialize): Likewise.
        (vrp_finalize): Likewise.  Revamp to avoid direct access to
        vr_value, values_propagated, etc.
        (check_array_bounds): Extract vrp_prop class instance pointer from
        walk info structure.  Use it to call member functions.
        (check_all_array_refs): Make a member function within vrp_prop class.
        Smuggle class instance pointer via walk info structure.
        (x_vr_values): New local static.
        (vrp_valueize): Use x_vr_values to get class instance.
        (vr_valueize_1): Likewise.
        (class vrp_folder): Add vr_values data member.  Add various member
        functions as well as member functions that delegate to vr_values.
        (fold_predicate_in): Make a mber fucntion within vrp_folder class.
        (simplify_stmt_for_jump_threading): Extract smuggled vr_values
        class instance from vr_values.  Use it to call member functions.
        (vrp_dom_walker): Add vr_values data member.
        (vrp_dom_walker::after_dom_children): Smuggle vr_values class
        instance via x_vr_values.
        (identify_jump_threads): Accept vr_values as argument.  Store
        it into the walker structure.
        (evrp_dom_walker): Add vr_values class data member.  Add various
        delegators.
        (evrp_dom_walker::try_find_new_range): Use vr_values data
        member to access the memory allocator.
        (evrp_dom_walker::before_dom_children): Store vr_values class
        instance into the vrp_folder class.
        (evrp_dom_walker::push_value_range): Rework to avoid direct
        access to num_vr_values and vr_value.
        (evrp_dom_walker::pop_value_range): Likewise.
        (execute_early_vrp): Remove call to vrp_initialize_lattice.
        Use vr_values to get to dump_all_value_ranges member function.
        Remove call to vrp_free_lattice.  Call vrp_initialize, vrp_finalize,
        and simplify_cond_using_ranges_2 via vrp_prop class instance.
        Pass vr_values class instance down to identify_jump_threads.
        Remove call to vrp_free_lattice.
        (debug_all_value_ranges): Remove.

        * tree-vrp.c (vrp_prop): Move class to earlier point in the file.
        (vrp_folder): Likewise.

        * tree-vrp.c (set_value_range): Do not reference vrp_equiv_obstack.
        Get it from the existing bitmap instead.
        (vrp_intersect_ranges_1): Likewise.

2017-11-09  Jakub Jelinek  <jakub@redhat.com>

        * gimple-ssa-store-merging.c (struct store_immediate_info): Add
        bit_not_p field.
        (store_immediate_info::store_immediate_info): Add bitnotp argument,
        set bit_not_p to it.
        (imm_store_chain_info::coalesce_immediate_stores): Break group
        if bit_not_p is different.
        (count_multiple_uses, split_group,
        imm_store_chain_info::output_merged_store): Handle info->bit_not_p.
        (handled_load): Avoid multiple chained BIT_NOT_EXPRs.
        (pass_store_merging::process_store): Handle BIT_{AND,IOR,XOR}_EXPR
        result inverted using BIT_NOT_EXPR, compute bit_not_p, pass it
        to store_immediate_info ctor.

2017-11-09  Jim Wilson  <jimw@sifive.com>

        * collect2.c (OBJECT_FORMAT_COFF): Remove EXTENDED_COFF support.
        (scan_prog_file): Likewise.

2017-11-09  Jan Hubicka  <hubicka@ucw.cz>

        * bb-reorder.c (max_entry_frequency): Remove.
        (find_traces, rotate_loop, mark_bb_visited, connect_better_edge_p,
        connect_traces, push_to_next_round_p): Remove prototypes.
        (find_traces_1_round): Use counts only.
        (push_to_next_round_p): Likewise.
        (find_traces): Likewise.
        (rotate_loop): Likewise.
        (find_traces_1_round): Likewise.
        (connect_traces): Likewise.
        (edge_order): Likewise.

2017-11-09  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (output_return_instruction): Add comments to
        indicate requirement for cmse_nonsecure_entry return to account
        for the size of clearing instruction output here.
        (thumb_exit): Likewise.
        * config/arm/thumb2.md (thumb2_cmse_entry_return): Fix length for
        return in hardfloat mode.

2017-11-09  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (machine_function): Add a bool,
        "toc_is_wrapped_separately".
        (rs6000_option_override_internal): Enable OPTION_MASK_SAVE_TOC_INDIRECT
        if it wasn't explicitly set or unset, we are optimizing for speed, and
        doing separate shrink-wrapping.
        (rs6000_get_separate_components): Enable the TOC component if
        saving the TOC register in the prologue.
        (rs6000_components_for_bb): Handle the TOC component.
        (rs6000_emit_prologue_components): Store the TOC register where needed.
        (rs6000_set_handled_components): Mark TOC as handled, if handled.
        (rs6000_emit_prologue): Don't save the TOC if that is already done.

2017-11-09  Martin Jambor  <mjambor@suse.cz>

        * ipa-param-manipulation.c: New file.
        * ipa-param-manipulation.h: Likewise.
        * Makefile.in (OBJS): Add ipa-param-manipulation.o.
        (PLUGIN_HEADERS): Addded ipa-param-manipulation.h
        * ipa-param.h (ipa_parm_op): Moved to ipa-param-manipulation.h.
        (ipa_parm_adjustment): Likewise.
        (ipa_parm_adjustment_vec): Likewise.
        (ipa_get_vector_of_formal_parms): Moved declaration to
        ipa-param-manipulation.h.
        (ipa_get_vector_of_formal_parm_types): Likewise.
        (ipa_modify_formal_parameters): Likewise.
        (ipa_modify_call_arguments): Likewise.
        (ipa_combine_adjustments): Likewise.
        (ipa_dump_param_adjustments): Likewise.
        (ipa_modify_expr): Likewise.
        (ipa_get_adjustment_candidate): Likewise.
        * ipa-prop.c (ipa_get_vector_of_formal_parms): Moved to
        ipa-param-manipulation.c.
        (ipa_get_vector_of_formal_parm_types): Likewise.
        (ipa_modify_formal_parameters): Likewise.
        (ipa_modify_call_arguments): Likewise.
        (ipa_modify_expr): Likewise.
        (get_ssa_base_param): Likewise.
        (ipa_get_adjustment_candidate): Likewise.
        (index_in_adjustments_multiple_times_p): Likewise.
        (ipa_combine_adjustments): Likewise.
        (ipa_dump_param_adjustments): Likewise.
        * tree-sra.c: Also include ipa-param-manipulation.h
        * omp-simd-clone.c: Include ipa-param-manipulation.h instead of
        ipa-param.h.

2017-11-09  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/sourcebuild.texi (vect_masked_store): Document.

2017-11-09  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/sourcebuild.texi (vect_align_stack_vars): Document.

2017-11-09  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/sourcebuild.texi (vect_variable_length): Document.

2017-11-09  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/sourcebuild.texi (vect_unaligned_possible): Document.

2017-11-09  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/sourcebuild.texi (vect_element_align_preferred): Document.

2017-11-09  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/sourcebuild.texi (vect_perm_short, vect_perm_byte): Document
        previously undocumented selectors.
        (vect_perm3_byte, vect_perm3_short, vect_perm3_int): Document.

2017-11-09  Richard Sandiford  <richard.sandiford@linaro.org>

        * doc/rtl.texi (const_vector): Say that elements can be
        const_wide_ints too.
        * emit-rtl.h (valid_for_const_vec_duplicate_p): Declare.
        * emit-rtl.c (valid_for_const_vec_duplicate_p): New function.
        (gen_vec_duplicate): Use it instead of CONSTANT_P.
        * optabs.c (expand_vector_broadcast): Likewise.

2017-11-09  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-ssa-loop-ivopts.c (get_address_cost): Try using a
        scaled index even if the unscaled address was invalid.
        Don't increase the complexity of using a scale in that case.

2017-11-09  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/rtl.texi: Rewrite the subreg rules so that they partition
        the inner register into REGMODE_NATURAL_SIZE bytes rather than
        UNITS_PER_WORD bytes.
        * emit-rtl.c (validate_subreg): Divide subregs into blocks
        based on REGMODE_NATURAL_SIZE of the inner mode.
        (gen_lowpart_common): Split the SCALAR_FLOAT_MODE_P and
        !SCALAR_FLOAT_MODE_P cases.  Use REGMODE_NATURAL_SIZE for the latter.
        * expmed.c (lowpart_bit_field_p): Divide the value up into
        chunks of REGMODE_NATURAL_SIZE rather than UNITS_PER_WORD.
        * expr.c (store_constructor): Use REGMODE_NATURAL_SIZE to test
        whether something is likely to occupy more than one register.

2017-11-09  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/82879
        * ipa-inline-transform.c (update_noncloned_frequencies): Use
        profile_count::adjust_for_ipa_scaling.
        * tree-inline.c (copy_bb, copy_cfg_body): Likewise.
        * profile-count.c (profile_count::adjust_for_ipa_scaling): New member
        function.
        * profile-count.h (profile_count::adjust_for_ipa_scaling): Declare.

2017-11-09  Jakub Jelinek  <jakub@redhat.com>

        * gimple-ssa-store-merging.c (count_multiple_uses): New function.
        (split_group): Add total_orig and total_new arguments, estimate the
        number of statements related to the store group without store merging
        and with store merging.
        (imm_store_chain_info::output_merged_store): Adjust split_group
        callers, punt if estimated number of statements with store merging
        is not smaller than estimated number of statements without it.
        Formatting fix.
        (handled_load): Remove has_single_use checks.
        (pass_store_merging::process_store): Likewise.

2017-11-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82902
        * tree-ssa-phiprop.c (propagate_with_phi): Test proper type.

2017-11-09  Martin Liska  <mliska@suse.cz>

        PR target/82863
        * emit-rtl.c (init_emit_regs): Initialize split_branch_probability to
        uninitialized.

2017-11-09  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/82669
        * sbitmap.h (bmp_iter_set_init): Remove non needed check.

2017-11-09  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/48463
        * coverage.c (coverage_begin_function): Output also end locus
        of a function and information whether the function is
        artificial.
        * gcov-dump.c (tag_function): Parse and print the information.
        * gcov.c (INCLUDE_MAP): Add include.
        (INCLUDE_SET): Likewise.
        (struct line_info): Move earlier in the source file because
        of vector<line_info> in function_info structure.
        (line_info::line_info): Likewise.
        (line_info::has_block): Likewise.
        (struct source_info): Add new member index.
        (source_info::get_functions_at_location): New function.
        (function_info::group_line_p): New function.
        (output_intermediate_line): New function.
        (output_intermediate_file): Use the mentioned function.
        (struct function_start): New.
        (struct function_start_pair_hash): Likewise.
        (process_file): Add code that identifies group functions.
        Assign lines either to global or function scope.
        (generate_results): Skip artificial functions.
        (find_source): Assign index for each source file.
        (read_graph_file): Read new flag artificial and end_line.
        (add_line_counts): Assign it either to global of function scope.
        (accumulate_line_counts): Isolate core of the function to
        accumulate_line_info and call it for both function and global
        scope lines.
        (accumulate_line_info): New function.
        (output_line_beginning): Fix GNU coding style.
        (print_source_line): New function.
        (output_line_details): Likewise.
        (output_function_details): Likewise.
        (output_lines): Iterate both source (global) scope and function
        scope.
        (struct function_line_start_cmp): New class.
        * doc/gcov.texi: Reflect changes in documentation.

2017-11-09  Jakub Jelinek  <jakub@redhat.com>

        PR debug/82837
        * dwarf2out.c (const_ok_for_output_1): Reject NEG in addition to NOT.
        (mem_loc_descriptor): Handle (const (neg (...))) as (neg (const (...)))
        and similarly for not instead of neg.

2017-11-08  Andi Kleen  <ak@linux.intel.com>

        * config/i386/i386.opt: Add -mforce-indirect-call.
        * config/i386/predicates.md: Check for flag_force_indirect_call.
        * doc/invoke.texi: Document -mforce-indirect-call

2017-11-08  Kito Cheng  <kito.cheng@gmail.com>

        * config/riscv/riscv-protos.h (riscv_slow_unaligned_access_p):
        New extern.
        (MOVE_RATIO): Use riscv_slow_unaligned_access_p.
        config/riscv/riscv.c (predict.h): New include.
        (riscv_slow_unaligned_access_p): No longer static.
        (riscv_block_move_straight): Add require.
        * config/riscv/riscv-protos.h (riscv_hard_regno_nregs): Delete.

2017-11-08  Jakub Jelinek  <jakub@redhat.com>

        PR target/82855
        * config/i386/sse.md (<avx512>_eq<mode>3<mask_scalar_merge_name>,
        <avx512>_eq<mode>3<mask_scalar_merge_name>_1): Use
        nonimmediate_operand predicate for operand 1 instead of
        register_operand.

2017-11-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-simd.md (store_pair_lanes<mode>):
        New pattern.
        * config/aarch64/constraints.md (Uml): New constraint.
        * config/aarch64/predicates.md (aarch64_mem_pair_lanes_operand): New
        predicate.

2017-11-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * simplify-rtx.c (simplify_ternary_operation): Simplify vec_merge
        of two vec_duplicates into a vec_concat.

2017-11-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * simplify-rtx.c (simplify_ternary_operation, VEC_MERGE):
        Simplify vec_merge of vec_duplicate and vec_concat.
        * config/aarch64/constraints.md (Utq): New constraint.
        * config/aarch64/aarch64-simd.md (load_pair_lanes<mode>): New
        define_insn.

2017-11-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * simplify-rtx.c (simplify_ternary_operation, VEC_MERGE):
        Simplify vec_merge of vec_duplicate and const_vector.
        * config/aarch64/predicates.md (aarch64_simd_or_scalar_imm_zero):
        New predicate.
        * config/aarch64/aarch64-simd.md (*aarch64_combinez<mode>): Use VDC
        mode iterator.  Update predicate on operand 1 to
        handle non-const_vec constants.  Delete constraints.
        (*aarch64_combinez_be<mode>): Likewise for operand 2.

2017-11-08  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/78821
        * gimple-ssa-store-merging.c (struct store_operand_info): Add bit_not_p
        data member.
        (store_operand_info::store_operand_info): Initialize it to false.
        (pass_store_merging::terminate_all_aliasing_chains): Rewritten to use
        ref_maybe_used_by_stmt_p and stmt_may_clobber_ref_p on lhs of each
        store in the group, and if chain_info is non-NULL, to ignore altogether
        that chain.
        (compatible_load_p): Fail if bit_not_p does not match.
        (imm_store_chain_info::output_merged_store): Handle bit_not_p loads.
        (handled_load): Fill in bit_not_p.  Handle BIT_NOT_EXPR.
        (pass_store_merging::process_store): Adjust
        terminate_all_aliasing_chains calls to pass NULL in all current spots,
        call terminate_all_aliasing_chains newly when adding a store into
        a chain with non-NULL chain_info.

2017-11-08  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_can_eliminate): Simplify logic.

2017-11-08  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_frame_pointer_required)
        Remove.
        (aarch64_layout_frame): Initialise emit_frame_chain.
        (aarch64_can_eliminate): Remove omit leaf frame pointer code.
        (TARGET_FRAME_POINTER_REQUIRED): Remove define.

2017-11-08  Martin Liska  <mliska@suse.cz>

        * gimplify.c (expand_FALLTHROUGH_r): Simplify usage
        of gimple_call_internal_p.

2017-11-07  Tom de Vries  <tom@codesourcery.com>

        * config/mips/mips.h (ASM_OUTPUT_LABELREF): Wrap in "do {} while (0)".

2017-11-07  Tom de Vries  <tom@codesourcery.com>

        * config/mips/mips.h (ASM_OUTPUT_CASE_END): Remove semicolon after
        "do {} while (0)".

2017-11-08  Martin Liska  <mliska@suse.cz>

        PR sanitizer/82792
        * gimplify.c (expand_FALLTHROUGH_r): Skip IFN_ASAN_MARK.

2017-11-07  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple-pretty-print.c (dump_profile): Return "" instead of NULL.

2017-11-07  Jakub Jelinek  <jakub@redhat.com>

        PR target/82855
        * config/i386/i386.md (SWI1248_AVX512BWDQ2_64): New mode iterator.
        (*cmp<mode>_ccz_1): New insn with $k alternative.

        PR target/82855
        * config/i386/i386.c (ix86_swap_binary_operands_p): Treat
        RTX_COMM_COMPARE as commutative as well.
        (ix86_binary_operator_ok): Formatting fix.
        * config/i386/sse.md (*mul<mode>3<mask_name><round_name>,
        *<code><mode>3<mask_name><round_saeonly_name>,
        *<code><mode>3<mask_name>, *<code>tf3, *mul<mode>3<mask_name>,
        *<s>mul<mode>3_highpart<mask_name>,
        *vec_widen_umult_even_v16si<mask_name>,
        *vec_widen_umult_even_v8si<mask_name>,
        *vec_widen_umult_even_v4si<mask_name>,
        *vec_widen_smult_even_v16si<mask_name>,
        *vec_widen_smult_even_v8si<mask_name>, *sse4_1_mulv2siv2di3<mask_name>,
        *avx2_pmaddwd, *sse2_pmaddwd, *<sse4_1_avx2>_mul<mode>3<mask_name>,
        *avx2_<code><mode>3, *avx512f_<code><mode>3<mask_name>,
        *sse4_1_<code><mode>3<mask_name>, *<code>v8hi3,
        *sse4_1_<code><mode>3<mask_name>, *<code>v16qi3, *avx2_eq<mode>3,
        <avx512>_eq<mode>3<mask_scalar_merge_name>_1, *sse4_1_eqv2di3,
        *sse2_eq<mode>3, <mask_codefor><code><mode>3<mask_name>,
        *<code><mode>3, *<sse2_avx2>_uavg<mode>3<mask_name>,
        *<ssse3_avx2>_pmulhrsw<mode>3<mask_name>, *ssse3_pmulhrswv4hi3): Use
        !(MEM_P (operands[1]) && MEM_P (operands[2])) condition instead of
        ix86_binary_operator_ok.  Formatting fixes.
        (*<plusminus_insn><mode>3<mask_name><round_name>,
        *<plusminus_insn><mode>3, *<plusminus_insn><mode>3_m): Formatting
        fixes.

2017-11-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (GPR2): New mode_iterator.
        ("cstore<mode>4"): Don't always expand with rs6000_emit_int_cmove for
        eq and ne if TARGET_ISEL.
        (cmp): New code_iterator.
        (UNS, UNSU_, UNSIK): New code_attrs.
        (<code><GPR:mode><GPR2:mode>2_isel): New define_insn_and_split.
        ("eq<mode>3"): New define_expand, rename the define_insn_and_split
        to...
        ("eq<mode>3"): ... this.
        ("ne<mode>3"): New define_expand, rename the define_insn_and_split
        to...
        ("ne<mode>3"): ... this.

2017-11-07  Julia Koval  <julia.koval@intel.com>

        PR target/82812
        * common/config/i386/i386-common.c
        (OPTION_MASK_ISA_GENERAL_REGS_ONLY_UNSET): Remove MPX from flag.
        (ix86_handle_option): Move MPX to isa_flags2 and GFNI to isa_flags.
        * config/i386/i386-c.c (ix86_target_macros_internal): Ditto.
        * config/i386/i386.opt: Ditto.
        * config/i386/i386.c (ix86_target_string): Ditto.
        (ix86_option_override_internal): Ditto.
        (ix86_init_mpx_builtins): Move MPX to args2.
        (ix86_expand_builtin): Special handling for OPTION_MASK_ISA_GFNI.
        * config/i386/i386-builtin.def (__builtin_ia32_vgf2p8affineinvqb_v64qi,
        __builtin_ia32_vgf2p8affineinvqb_v64qi_mask,
        __builtin_ia32_vgf2p8affineinvqb_v32qi,
        __builtin_ia32_vgf2p8affineinvqb_v32qi_mask,
        __builtin_ia32_vgf2p8affineinvqb_v16qi,
        __builtin_ia32_vgf2p8affineinvqb_v16qi_mask): Move to ARGS array.

2017-11-07  Uros Bizjak  <ubizjak@gmail.com>

        PR target/80425
        * config/i386.i386.md (*zero_extendsidi2): Change (?r,*Yj), (?*Yi,r)
        and (*x,m) to ($r,Yj), ($Yi,r) and ($x,m).
        (zero-extendsidi peephole2): Remove peephole.

2017-11-07  Eric Botcazou  <ebotcazou@adacore.com>

        PR c/53037
        * stor-layout.c: Include attribs.h.
        (handle_warn_if_not_align): Replace test on TYPE_USER_ALIGN with
        explicit lookup of "aligned" attribute.

2017-11-07  Andrew Waterman  <andrew@sifive.com>

        * config/riscv/riscv-protos.h (riscv_hard_regno_nregs): New prototype.
        (riscv_expand_block_move): Likewise.
        * config/riscv/riscv.h (MOVE_RATIO): Tune cost to movmemsi
        implementation.
        (RISCV_MAX_MOVE_BYTES_PER_LOOP_ITER): New define.
        (RISCV_MAX_MOVE_BYTES_STRAIGHT): New define.
        * config/riscv/riscv.c (riscv_block_move_straight): New function.
        (riscv_adjust_block_mem): Likewise.
        (riscv_block_move_loop): Likewise.
        (riscv_expand_block_move): Likewise.
        * config/riscv/riscv.md (movmemsi): New pattern.

2017-11-07  Michael Clark  <michaeljclark@mac.com>

        * config/riscv/linux.h (MUSL_ABI_SUFFIX): New define.
        (MUSL_DYNAMIC_LINKER): Likewise.

2017-11-07  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/aarch64/aarch64.md (ashl<mode>3, ashr<mode>3, lshr<mode>3)
        (rotr<mode>3, rotl<mode>3): Use aarch64_reg_or_imm instead of
        nonmmory_operand.

2017-11-07  Richard Biener  <rguenther@suse.de>

        * match.pd: Fix build.

2017-11-07  Wilco Dijkstra  <wdijkstr@arm.com>
            Jackson Woodruff  <jackson.woodruff@arm.com>

        PR tree-optimization/71026
        * match.pd: Canonicalize negate in division.

2017-11-07  Sudakshina Das  <sudi.das@arm.com>

        PR middle-end/80131
        * match.pd: Simplify 1 << (C - x) where C = precision (x) - 1.

2017-11-07  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd ((a&~b)|(a^b),(a&~b)^~a,(a|b)&~(a^b),a|~(a^b),
        (a|b)|(a&^b),(a&b)|~(a^b),~(~a&b),~X^Y): New transformations.

2017-11-07  Marc Glisse  <marc.glisse@inria.fr>

        * fold-const.c (negate_expr_p) [PLUS_EXPR, MINUS_EXPR]: Handle
        non-scalar integral types.
        * match.pd (negate_expr_p): Handle MINUS_EXPR.
        (-(A-B), -(~A)): New transformations.

2017-11-07  Tom de Vries  <tom@codesourcery.com>

        * config/powerpcspe/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): Remove
        semicolon after "do {} while (0)".
        * config/powerpcspe/aix51.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
        * config/powerpcspe/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
        * config/powerpcspe/aix53.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
        * config/powerpcspe/aix61.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
        * config/powerpcspe/aix71.h (SUBTARGET_OVERRIDE_OPTIONS): Same.

2017-11-07  Tom de Vries  <tom@codesourcery.com>

        * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): Remove semicolon
        after "do {} while (0)".
        * config/rs6000/aix51.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
        * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
        * config/rs6000/aix53.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
        * config/rs6000/aix61.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
        * config/rs6000/aix71.h (SUBTARGET_OVERRIDE_OPTIONS): Same.

2017-11-07  Tom de Vries  <tom@codesourcery.com>

        PR other/82784
        * config/arm/arm.c (HANDLE_NARROW_SHIFT_ARITH): Remove semicolon after
        "while {} do (0)".
        (arm_rtx_costs_internal): Add missing semicolon after
        HANDLE_NARROW_SHIFT_ARITH call.

2017-11-06  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
        disable isel if it was not set explicitly.

2017-11-06  James Bowman  <james.bowman@ftdichip.com>

        * gcc/dwarf2out.c (modified_type_die): Retain ADDR_SPACE qualifiers.
        (add_type_attribute) likewise.

2017-11-06  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_can_use_return_insn_p): Use reference
        of struct ix86_frame.
        (ix86_initial_elimination_offset): Likewise.
        (ix86_expand_split_stack_prologue): Likewise.

2017-11-06  Marc Glisse  <marc.glisse@inria.fr>

        * tree-vrp.h (enum value_range_type): Update stale comment.

2017-11-06  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_expand_vec_perm)
        (aarch64_expand_vec_perm_const): Take the number of units too.
        * config/aarch64/aarch64.c (aarch64_expand_vec_perm)
        (aarch64_expand_vec_perm_const): Likewise.
        * config/aarch64/aarch64-simd.md (vec_perm_const<mode>)
        (vec_perm<mode>): Update accordingly.

2017-11-06  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_simd_vect_par_cnst_half):
        Take the number of units too.
        * config/aarch64/aarch64.c (aarch64_simd_vect_par_cnst_half): Likewise.
        (aarch64_simd_check_vect_par_cnst_half): Update call accordingly,
        but check for a vector mode before rather than after the call.
        * config/aarch64/aarch64-simd.md (aarch64_split_simd_mov<mode>)
        (move_hi_quad_<mode>, vec_unpack<su>_hi_<mode>)
        (vec_unpack<su>_lo_<mode, vec_widen_<su>mult_lo_<mode>)
        (vec_widen_<su>mult_hi_<mode>, vec_unpacks_lo_<mode>)
        (vec_unpacks_hi_<mode>, aarch64_saddl2<mode>, aarch64_uaddl2<mode>)
        (aarch64_ssubl2<mode>, aarch64_usubl2<mode>, widen_ssum<mode>3)
        (widen_usum<mode>3, aarch64_saddw2<mode>, aarch64_uaddw2<mode>)
        (aarch64_ssubw2<mode>, aarch64_usubw2<mode>, aarch64_sqdmlal2<mode>)
        (aarch64_sqdmlsl2<mode>, aarch64_sqdmlal2_lane<mode>)
        (aarch64_sqdmlal2_laneq<mode>, aarch64_sqdmlsl2_lane<mode>)
        (aarch64_sqdmlsl2_laneq<mode>, aarch64_sqdmlal2_n<mode>)
        (aarch64_sqdmlsl2_n<mode>, aarch64_sqdmull2<mode>)
        (aarch64_sqdmull2_lane<mode>, aarch64_sqdmull2_laneq<mode>)
        (aarch64_sqdmull2_n<mode>): Update accordingly.

2017-11-06  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_reverse_mask): Take
        the number of units too.
        * config/aarch64/aarch64.c (aarch64_reverse_mask): Likewise.
        * config/aarch64/aarch64-simd.md (vec_load_lanesoi<mode>)
        (vec_store_lanesoi<mode>, vec_load_lanesci<mode>)
        (vec_store_lanesci<mode>, vec_load_lanesxi<mode>)
        (vec_store_lanesxi<mode>): Update accordingly.

2017-11-06  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_endian_lane_rtx): Declare.
        * config/aarch64/aarch64.c (aarch64_endian_lane_rtx): New function.
        * config/aarch64/aarch64.h (ENDIAN_LANE_N): Take the number
        of units rather than the mode.
        * config/aarch64/iterators.md (nunits): New mode attribute.
        * config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args):
        Use aarch64_endian_lane_rtx instead of GEN_INT (ENDIAN_LANE_N ...).
        * config/aarch64/aarch64-simd.md (aarch64_dup_lane<mode>)
        (aarch64_dup_lane_<vswap_width_name><mode>, *aarch64_mul3_elt<mode>)
        (*aarch64_mul3_elt_<vswap_width_name><mode>): Likewise.
        (*aarch64_mul3_elt_to_64v2df, *aarch64_mla_elt<mode>): Likewise.
        (*aarch64_mla_elt_<vswap_width_name><mode>, *aarch64_mls_elt<mode>)
        (*aarch64_mls_elt_<vswap_width_name><mode>, *aarch64_fma4_elt<mode>)
        (*aarch64_fma4_elt_<vswap_width_name><mode>):: Likewise.
        (*aarch64_fma4_elt_to_64v2df, *aarch64_fnma4_elt<mode>): Likewise.
        (*aarch64_fnma4_elt_<vswap_width_name><mode>): Likewise.
        (*aarch64_fnma4_elt_to_64v2df, reduc_plus_scal_<mode>): Likewise.
        (reduc_plus_scal_v4sf, reduc_<maxmin_uns>_scal_<mode>): Likewise.
        (reduc_<maxmin_uns>_scal_<mode>): Likewise.
        (*aarch64_get_lane_extend<GPI:mode><VDQQH:mode>): Likewise.
        (*aarch64_get_lane_zero_extendsi<mode>): Likewise.
        (aarch64_get_lane<mode>, *aarch64_mulx_elt_<vswap_width_name><mode>)
        (*aarch64_mulx_elt<mode>, *aarch64_vgetfmulx<mode>): Likewise.
        (aarch64_sq<r>dmulh_lane<mode>, aarch64_sq<r>dmulh_laneq<mode>)
        (aarch64_sqrdml<SQRDMLH_AS:rdma_as>h_lane<mode>): Likewise.
        (aarch64_sqrdml<SQRDMLH_AS:rdma_as>h_laneq<mode>): Likewise.
        (aarch64_sqdml<SBINQOPS:as>l_lane<mode>): Likewise.
        (aarch64_sqdml<SBINQOPS:as>l_laneq<mode>): Likewise.
        (aarch64_sqdml<SBINQOPS:as>l2_lane<mode>_internal): Likewise.
        (aarch64_sqdml<SBINQOPS:as>l2_laneq<mode>_internal): Likewise.
        (aarch64_sqdmull_lane<mode>, aarch64_sqdmull_laneq<mode>): Likewise.
        (aarch64_sqdmull2_lane<mode>_internal): Likewise.
        (aarch64_sqdmull2_laneq<mode>_internal): Likewise.
        (aarch64_vec_load_lanesoi_lane<mode>): Likewise.
        (aarch64_vec_store_lanesoi_lane<mode>): Likewise.
        (aarch64_vec_load_lanesci_lane<mode>): Likewise.
        (aarch64_vec_store_lanesci_lane<mode>): Likewise.
        (aarch64_vec_load_lanesxi_lane<mode>): Likewise.
        (aarch64_vec_store_lanesxi_lane<mode>): Likewise.
        (aarch64_simd_vec_set<mode>): Update use of ENDIAN_LANE_N.
        (aarch64_simd_vec_setv2di): Likewise.

2017-11-06  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c.c (P8V_BUILTIN_VEC_REVB): Add power 8
        definitions.
        (P9V_BUILTIN_VEC_REVB): Remove the power 9 instance definitions.
        * config/rs6000/altivec.h (vec_revb): Change the #define from power 9
        to power 8.
        * config/rs6000/r6000-protos.h (swap_endian_selector_for_mode): Add new
        extern declaration.
        * config/rs6000/rs6000.c (swap_endian_selector_for_mode): Add function.
        * config/rs6000/rs6000-builtin.def (BU_P8V_VSX_1, BU_P8V_OVERLOAD_1):
        Add power 8 macro expansions.
        (BU_P9V_OVERLOAD_1): Remove power 9 overload expansion.
        * config/rs6000/vsx.md (revb_<mode>): Add define_expand to generate
        power 8 instructions.  (VSX_XXBR): Add iterator.

2017-11-06  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.md (predicable_short_it): Change default to "no",
        improve documentation, remove uses that are identical to the default.
        (enabled_for_depr_it): Rename to enabled_for_short_it.
        * gcc/config/arm/arm-fixed.md (predicable_short_it):
        Remove default uses.
        * gcc/config/arm/ldmstm.md (predicable_short_it): Likewise.
        * gcc/config/arm/sync.md (predicable_short_it): Likewise.
        * gcc/config/arm/thumb2.md (predicable_short_it): Likewise.
        * gcc/config/arm/vfp.md (predicable_short_it): Likewise.

2017-11-06  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/82748
        * config/rs6000/rs6000-builtin.def (BU_FLOAT128_1): Delete
        float128 helper macros, which are no longer used after deleting
        the old 'q' built-in functions, and moving the round to odd
        built-in functions to being special built-in functions.
        (BU_FLOAT128_2): Likewise.
        (BU_FLOAT128_1_HW): Likewise.
        (BU_FLOAT128_2_HW): Likewise.
        (BU_FLOAT128_3_HW): Likewise.
        (FABSQ): Delete old 'q' built-in functions.
        (COPYSIGNQ): Likewise.
        (SQRTF128_ODD): Move round to odd built-in functions to be
        special built-in functions, so that we can handle
        -mabi=ieeelongdouble.
        (TRUNCF128_ODD): Likewise.
        (ADDF128_ODD): Likewise.
        (SUBF128_ODD): Likewise.
        (MULF128_ODD): Likewise.
        (DIVF128_ODD): Likewise.
        (FMAF128_ODD): Likewise.
        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Map old 'q'
        built-in names to 'f128'.
        * config/rs6000/rs6000.c (rs6000_fold_builtin): Remove folding the
        old 'q' built-in functions, as the machine independent code for
        'f128' built-in functions handles this.
        (rs6000_expand_builtin): Add expansion for float128 round to odd
        functions, keying off on -mabi=ieeelongdouble of whether to use
        the KFmode or TFmode variant.
        (rs6000_init_builtins): Initialize the _Float128 round to odd
        built-in functions.
        * doc/extend.texi (PowerPC Built-in Functions): Document the old
        _Float128 'q' built-in functions are now mapped into the new
        'f128' built-in functions.

2017-11-06  David Edelsohn  <dje.gcc@gmail.com>

        * collect2.c (add_lto_object): Compile for OBJECT_COFF.
        (scan_prog_file): Don't skip PASS_LTOINFO. Scan for LTO objects.

2017-11-06  David Malcolm  <dmalcolm@redhat.com>

        PR jit/82826
        * ipa-fnsummary.c (ipa_fnsummary_c_finalize): New function.
        * ipa-fnsummary.h (ipa_fnsummary_c_finalize): New decl.
        * toplev.c: Include "ipa-fnsummary.h".
        (toplev::finalize): Call ipa_fnsummary_c_finalize.

2017-11-06  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/82838
        * gimple-ssa-store-merging.c
        (imm_store_chain_info::output_merged_store): Call force_gimple_operand_1
        on a separate gimple_seq which is then appended to seq.

2017-11-06  Jeff Law  <law@redhat.com>

        PR target/82788
        * config/i386/i386.c (PROBE_INTERVAL): Remove.
        (get_probe_interval): New functions.
        (ix86_adjust_stack_and_probe_stack_clash): Use get_probe_interval.
        (ix86_adjust_stack_and_probe): Likewise.
        (output_adjust_stack_and_probe): Likewise.
        (ix86_emit_probe_stack_range): Likewise.
        (ix86_expand_prologue): Likewise.

2017-11-06  Richard Sandiford  <richard.sandiford@linaro.org>

        PR tree-optimization/82816
        * tree-ssa-math-opts.c (convert_mult_to_widen): Return false
        if the modes of the two types are the same.
        (convert_plusminus_to_widen): Likewise.

2017-11-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/altivec.md (*p9_vadu<mode>3) Rename to
        p9_vadu<mode>3.
        (usadv16qi): New define_expand.
        (usadv8hi): New define_expand.

2017-11-06  Jan Hubicka  <hubicka@ucw.cz>

        PR bootstrap/82832
        * ipa-inline-transform.c (update_noncloned_frequencies): Always
        scale.
        (inline_transform): Likewise.
        * predict.c (counts_to_freqs): Remove useless conditional.
        * profile-count.h (profile_count::apply_scale): Move sanity check.
        * tree-inline.c (copy_bb): Always scale.
        (copy_cfg_body): Likewise.

2017-11-06  Christophe Lyon  <christophe.lyon@linaro.org>

        PR target/67591
        * config/arm/arm.md (*sub_shiftsi): Add predicable_short_it
        attribute.
        (*cmp_ite0): Add enabled_for_depr_it attribute.
        (*cmp_ite1): Likewise.

2017-11-06  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_insn_cost): Handle TYPE_MFCR and
        TYPE_MFCRF.

2017-11-06  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-vrp.c (vrp_int_const_binop): Return true on success and
        return the value by pointer.
        (extract_range_from_multiplicative_op_1): Update accordingly.
        Return as soon as an operation fails.

2017-11-05  Tom de Vries  <tom@codesourcery.com>

        PR other/82784
        * asan.c (DEF_SANITIZER_BUILTIN_1): Factor out of ...
        (DEF_SANITIZER_BUILTIN): ... here.
        (initialize_sanitizer_builtins): Use DEF_SANITIZER_BUILTIN_1 instead of
        DEF_SANITIZER_BUILTIN in if stmt.  Add missing semicolon.

2017-11-05  Tom de Vries  <tom@codesourcery.com>

        PR other/82784
        * config/elfos.h (ASM_OUTPUT_BEFORE_CASE_LABEL): Remove semicolon after
        macro body.
        (ASM_OUTPUT_CASE_LABEL): Add semicolon after
        ASM_OUTPUT_BEFORE_CASE_LABEL call.
        * config/arc/arc.h (ASM_OUTPUT_BEFORE_CASE_LABEL): Remove semicolon
        after macro body.
        * config/m68k/m68kelf.h (ASM_OUTPUT_BEFORE_CASE_LABEL): Same.
        * config/mips/mips.h (ASM_OUTPUT_BEFORE_CASE_LABEL): Same.
        * config/v850/v850.h (ASM_OUTPUT_BEFORE_CASE_LABEL): Same.

2017-11-05  Tom de Vries  <tom@codesourcery.com>

        PR other/82784
        * graphite-scop-detection.c (DEBUG_PRINT): Remove semicolon after
        "do {} while (0)".

2017-11-04  Michael Clark  <michaeljclark@mac.com>

        * config/riscv/riscv.c (riscv_print_operand): Add a 'i' format.
        config/riscv/riscv.md (addsi3): Use 'i' for immediates.
        (adddi3): Likewise.
        (*addsi3_extended): Likewise.
        (*addsi3_extended2): Likewise.
        (<optab>si3): Likewise.
        (<optab>di3): Likewise.
        (<optab><mode>3): Likewise.
        (<*optabe>si3_internal): Likewise.
        (zero_extendqi<SUPERQI:mode>2): Likewise.
        (*add<mode>hi3): Likewise.
        (*xor<mode>hi3): Likewise.
        (<optab>di3): Likewise.
        (*<optab>si3_extend): Likewise.
        (*sge<u>_<X:mode><GPR:mode>): Likewise.
        (*slt<u>_<X:mode><GPR:mode>): Likewise.
        (*sle<u>_<X:mode><GPR:mode>): Likewise.

2017-11-04  Andrew Waterman  <andrew@sifive.com>

        * config/riscv/riscv.c (riscv_option_override): Conditionally set
        TARGET_STRICT_ALIGN based upon -mtune argument.

2017-11-04  Andrew Waterman  <andrew@sifive.com>

        * config/riscv/riscv.h (SLOW_BYTE_ACCESS): Change to 1.

2017-11-04  Daniel Santos  <daniel.santos@pobox.com>

        * config/i386/i386.c (choose_basereg): Use optional scratch
        register and add assertion.
        (x86_emit_outlined_ms2sysv_save): Use scratch register when
        needed, and don't allocate stack.
        (ix86_expand_prologue): Rearrange where SSE saves/stub call is
        emitted, correct wrong allocation with -mcall-ms2sysv-xlogues.
        (ix86_emit_outlined_ms2sysv_restore): Fix non-immediate offsets.

2017-11-03  Jeff Law  <law@redhat.com>

        * config/i386/i386.c (ix86_emit_restore_reg_using_pop): Prototype.
        (ix86_adjust_stack_and_probe_stack_clash): Use a push/pop sequence
        to probe at the start of a noreturn function.

2017-11-03  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/78821
        * gimple-ssa-store-merging.c: Update the file comment.
        (MAX_STORE_ALIAS_CHECKS): Define.
        (struct store_operand_info): New type.
        (store_operand_info::store_operand_info): New constructor.
        (struct store_immediate_info): Add rhs_code and ops data members.
        (store_immediate_info::store_immediate_info): Add rhscode, op0r
        and op1r arguments to the ctor, initialize corresponding data members.
        (struct merged_store_group): Add load_align_base and load_align
        data members.
        (merged_store_group::merged_store_group): Initialize them.
        (merged_store_group::do_merge): Update them.
        (merged_store_group::apply_stores): Pick the constant for
        encode_tree_to_bitpos from one of the two operands, or skip
        encode_tree_to_bitpos if neither operand is a constant.
        (class pass_store_merging): Add process_store method decl.  Remove
        bool argument from terminate_all_aliasing_chains method decl.
        (pass_store_merging::terminate_all_aliasing_chains): Remove
        var_offset_p argument and corresponding handling.
        (stmts_may_clobber_ref_p): New function.
        (compatible_load_p): New function.
        (imm_store_chain_info::coalesce_immediate_stores): Terminate group
        if there is overlap and rhs_code is not INTEGER_CST.  For
        non-overlapping stores terminate group if rhs is not mergeable.
        (get_alias_type_for_stmts): Change first argument from
        auto_vec<gimple *> & to vec<gimple *> &.  Add IS_LOAD, CLIQUEP and
        BASEP arguments.  If IS_LOAD is true, look at rhs1 of the stmts
        instead of lhs.  Compute *CLIQUEP and *BASEP in addition to the
        alias type.
        (get_location_for_stmts): Change first argument from
        auto_vec<gimple *> & to vec<gimple *> &.
        (struct split_store): Remove orig_stmts data member, add orig_stores.
        (split_store::split_store): Create orig_stores rather than orig_stmts.
        (find_constituent_stmts): Renamed to ...
        (find_constituent_stores): ... this.  Change second argument from
        vec<gimple *> * to vec<store_immediate_info *> *, push pointers
        to info structures rather than the statements.
        (split_group): Rename ALLOW_UNALIGNED argument to
        ALLOW_UNALIGNED_STORE, add ALLOW_UNALIGNED_LOAD argument and handle
        it.  Adjust find_constituent_stores caller.
        (imm_store_chain_info::output_merged_store): Handle rhs_code other
        than INTEGER_CST, adjust split_group, get_alias_type_for_stmts and
        get_location_for_stmts callers.  Set MR_DEPENDENCE_CLIQUE and
        MR_DEPENDENCE_BASE on the MEM_REFs if they are the same in all stores.
        (mem_valid_for_store_merging): New function.
        (handled_load): New function.
        (pass_store_merging::process_store): New method.
        (pass_store_merging::execute): Use process_store method.  Adjust
        terminate_all_aliasing_chains caller.

2017-11-03  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_legitimate_constant_p):
        Return true for more constants, symbols and label references.
        (aarch64_valid_floating_const): Remove unused function.

2017-11-03  Wilco Dijkstra  <wdijkstr@arm.com>

        PR target/82786
        * config/aarch64/aarch64.c (aarch64_layout_frame):
        Undo forcing of LR at bottom of frame.

2017-11-03  Jeff Law  <law@redhat.com>

        PR target/82823
        * config/i386/i386.c (ix86_expand_prologue): Tighten assert
        for int_registers_saved.

        * cfganal.c (single_pred_edge_ignoring_loop_edges): New function
        extracted from tree-ssa-dom.c.
        * cfganal.h (single_pred_edge_ignoring_loop_edges): Prototype.
        * tree-ssa-dom.c (single_incoming_edge_ignoring_loop_edges): Remove.
        (record_equivalences_from_incoming_edge): Add additional argument
        to single_pred_edge_ignoring_loop_edges call.
        * tree-ssa-uncprop.c (single_incoming_edge_ignoring_loop_edges): Remove.
        (uncprop_dom_walker::before_dom_children): Add additional argument
        to single_pred_edge_ignoring_loop_edges call.
        * tree-ssa-sccvn.c (sccvn_dom_walker::before_dom_children): Use
        single_pred_edge_ignoring_loop_edges rather than open coding.
        * tree-vrp.c (evrp_dom_walker::before_dom_children): Similarly.

2017-11-03  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (-(-A)): Rewrite.

2017-11-03  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs60000-protos.h (rs6000_emit_sISEL): Delete.
        (rs6000_emit_int_cmove): New declaration.
        * config/rs6000/rs6000.c (rs6000_emit_int_cmove): Delete declaration.
        (rs6000_emit_sISEL): Delete.
        (rs6000_emit_int_cmove): Make non-static.
        * config/rs6000/rs6000.md (cstore<mode>4): Use rs6000_emit_int_cmove
        instead of rs6000_emit_sISEL.

2017-11-03  Jan Hubicka  <hubicka@ucw.cz>

        * asan.c (create_cond_insert_point): Maintain profile.
        * ipa-utils.c (ipa_merge_profiles): Be sure only IPA profiles are
        merged.
        * basic-block.h (struct basic_block_def): Remove frequency.
        (EDGE_FREQUENCY): Use to_frequency
        * bb-reorder.c (push_to_next_round_p): Use only IPA counts for global
        heuristics.
        (find_traces): Update to use to_frequency.
        (find_traces_1_round): Likewise; use only IPA counts.
        (bb_to_key): Likewise.
        (connect_traces): Use IPA counts only.
        (copy_bb_p): Update to use to_frequency.
        (fix_up_crossing_landing_pad): Likewise.
        (sanitize_hot_paths): Likewise.
        * bt-load.c (basic_block_freq): Likewise.
        * cfg.c (init_flow): Set count_max to uninitialized.
        (check_bb_profile): Remove frequencies; check counts.
        (dump_bb_info): Do not dump frequencies.
        (update_bb_profile_for_threading): Update counts only.
        (scale_bbs_frequencies_int): Likewise.
        (MAX_SAFE_MULTIPLIER): Remove.
        (scale_bbs_frequencies_gcov_type): Update counts only.
        (scale_bbs_frequencies_profile_count): Update counts only.
        (scale_bbs_frequencies): Update counts only.
        * cfg.h (struct control_flow_graph): Add count-max.
        (update_bb_profile_for_threading): Update prototype.
        * cfgbuild.c (find_bb_boundaries): Do not update frequencies.
        (find_many_sub_basic_blocks): Likewise.
        * cfgcleanup.c (try_forward_edges): Likewise.
        (try_crossjump_to_edge): Likewise.
        * cfgexpand.c (expand_gimple_cond): Likewise.
        (expand_gimple_tailcall): Likewise.
        (construct_init_block): Likewise.
        (construct_exit_block): Likewise.
        * cfghooks.c (verify_flow_info): Check consistency of counts.
        (dump_bb_for_graph): Do not dump frequencies.
        (split_block_1): Do not update frequencies.
        (split_edge): Do not update frequencies.
        (make_forwarder_block): Do not update frequencies.
        (duplicate_block): Do not update frequencies.
        (account_profile_record): Do not update frequencies.
        * cfgloop.c (find_subloop_latch_edge_by_profile): Use IPA counts
        for global heuristics.
        * cfgloopanal.c (average_num_loop_insns): Update to use to_frequency.
        (expected_loop_iterations_unbounded): Use counts only.
        * cfgloopmanip.c (scale_loop_profile): Simplify.
        (create_empty_loop_on_edge): Simplify
        (loopify): Simplify
        (duplicate_loop_to_header_edge): Simplify
        * cfgrtl.c (force_nonfallthru_and_redirect): Update profile.
        (update_br_prob_note): Take care of removing note when profile
        becomes undefined.
        (relink_block_chain): Do not dump frequency.
        (rtl_account_profile_record): Use to_frequency.
        * cgraph.c (symbol_table::create_edge): Convert count to ipa count.
        (cgraph_edge::redirect_call_stmt_to_calle): Conver tcount to ipa count.
        (cgraph_update_edges_for_call_stmt_node): Likewise.
        (cgraph_edge::verify_count_and_frequency): Update.
        (cgraph_node::verify_node): Temporarily disable frequency verification.
        * cgraphbuild.c (compute_call_stmt_bb_frequency): Use
        to_cgraph_frequency.
        (cgraph_edge::rebuild_edges): Convert to ipa counts.
        * cgraphunit.c (init_lowered_empty_function): Do not initialize
        frequencies.
        (cgraph_node::expand_thunk): Update profile.
        * except.c (dw2_build_landing_pads): Do not update frequency.
        * final.c (compute_alignments): Use to_frequency.
        (dump_basic_block_info): Do not dump frequency.
        * gimple-pretty-print.c (dump_profile): Do not dump frequency.
        (dump_gimple_bb_header): Do not dump frequency.
        * gimple-ssa-isolate-paths.c (isolate_path): Do not update frequency;
        do update count.
        * gimple-streamer-in.c (input_bb): Do not stream frequency.
        * gimple-streamer-out.c (output_bb): Do not stream frequency.
        * haifa-sched.c (sched_pressure_start_bb): Use to_freuqency.
        (init_before_recovery): Do not update frequency.
        (sched_create_recovery_edges): Do not update frequency.
        * hsa-gen.c (convert_switch_statements): Do not update frequency.
        * ipa-cp.c (ipcp_propagate_stage): Update search for max_count.
        (ipa_cp_c_finalize): Set max_count to uninitialized.
        * ipa-fnsummary.c (get_minimal_bb): Use counts.
        (param_change_prob): Use counts.
        * ipa-profile.c (ipa_profile_generate_summary): Do not summarize
        local profiles.
        * ipa-split.c (consider_split): Use to_frequency.
        (split_function): Use to_frequency.
        * ira-build.c (loop_compare_func): Likewise.
        (mark_loops_for_removal): Likewise.
        (mark_all_loops_for_removal): Likewise.
        * loop-doloop.c (doloop_modify): Do not update frequency.
        * loop-unroll.c (unroll_loop_runtime_iterations): Do not update
        frequency.
        * lto-streamer-in.c (input_function): Update count_max.
        * omp-expand.c (expand_omp_taskreg): Update count_max.
        * omp-simd-clone.c (simd_clone_adjust): Update profile.
        * predict.c (maybe_hot_frequency_p): Use to_frequency.
        (maybe_hot_count_p): Use ipa counts only.
        (maybe_hot_bb_p): Simplify.
        (maybe_hot_edge_p): Simplify.
        (probably_never_executed): Do not take frequency argument.
        (probably_never_executed_bb_p): Do not pass frequency.
        (probably_never_executed_edge_p): Likewise.
        (combine_predictions_for_bb): Check that profile is nonzero.
        (propagate_freq): Do not set frequency.
        (drop_profile): Simplify.
        (counts_to_freqs): Simplify.
        (expensive_function_p): Use to_frequency.
        (propagate_unlikely_bbs_forward): Simplify.
        (determine_unlikely_bbs): Simplify.
        (estimate_bb_frequencies): Add hack to silence graphite issues.
        (compute_function_frequency): Use ipa counts.
        (pass_profile::execute): Update.
        (rebuild_frequencies): Use counts only.
        (force_edge_cold): Use counts only.
        * profile-count.c (profile_count::dump): Dump new count types.
        (profile_count::differs_from_p): Check compatiblity.
        (profile_count::to_frequency): New function.
        (profile_count::to_cgraph_frequency): New function.
        * profile-count.h (struct function): Declare.
        (enum profile_quality): Add profile_guessed_local and
        profile_guessed_global0.
        (class profile_proability): Decrease number of bits to 29;
        update from_reg_br_prob_note and to_reg_br_prob_note.
        (class profile_count: Update comment; decrease number of bits
        to 61. Check compatibility.
        (profile_count::compatible_p): New private member function.
        (profile_count::ipa_p): New member function.
        (profile_count::operator<): Handle global zero correctly.
        (profile_count::operator>): Handle global zero correctly.
        (profile_count::operator<=): Handle global zero correctly.
        (profile_count::operator>=): Handle global zero correctly.
        (profile_count::nonzero_p): New member function.
        (profile_count::force_nonzero): New member function.
        (profile_count::max): New member function.
        (profile_count::apply_scale): Handle IPA scalling.
        (profile_count::guessed_local): New member function.
        (profile_count::global0): New member function.
        (profile_count::ipa): New member function.
        (profile_count::to_frequency): Declare.
        (profile_count::to_cgraph_frequency): Declare.
        * profile.c (OVERLAP_BASE): Delete.
        (compute_frequency_overlap): Delete.
        (compute_branch_probabilities): Do not use compute_frequency_overlap.
        * regs.h (REG_FREQ_FROM_BB): Use to_frequency.
        * sched-ebb.c (rank): Use counts only.
        * shrink-wrap.c (handle_simple_exit): Use counts only.
        (try_shrink_wrapping): Use counts only.
        (place_prologue_for_one_component): Use counts only.
        * tracer.c (find_best_predecessor): Use to_frequency.
        (find_trace): Use to_frequency.
        (tail_duplicate): Use to_frequency.
        * trans-mem.c (expand_transaction): Do not update frequency.
        * tree-call-cdce.c: Do not update frequency.
        * tree-cfg.c (gimple_find_sub_bbs): Likewise.
        (gimple_merge_blocks): Likewise.
        (gimple_split_edge): Likewise.
        (gimple_duplicate_sese_region): Likewise.
        (gimple_duplicate_sese_tail): Likewise.
        (move_sese_region_to_fn): Likewise.
        (gimple_account_profile_record): Likewise.
        (insert_cond_bb): Likewise.
        * tree-complex.c (expand_complex_div_wide): Likewise.
        * tree-eh.c (lower_resx): Update profile.
        * tree-inline.c (copy_bb): Simplify count scaling; do not scale
        frequencies.
        (initialize_cfun): Do not initialize frequencies
        (freqs_to_counts): Delete.
        (copy_cfg_body): Ignore count parameter.
        (copy_body): Update.
        (expand_call_inline): Update count_max.
        (optimize_inline_calls): Update count_max.
        (tree_function_versioning): Update count_max.
        * tree-ssa-coalesce.c (coalesce_cost_bb): Use to_frequency.
        * tree-ssa-ifcombine.c (update_profile_after_ifcombine): Do not update
        frequency.
        * tree-ssa-loop-im.c (execute_sm_if_changed): Use counts only.
        * tree-ssa-loop-ivcanon.c (unloop_loops): Do not update freuqency.
        (try_peel_loop): Likewise.
        * tree-ssa-loop-ivopts.c (get_scaled_computation_cost_at): Use
        to_frequency.
        * tree-ssa-loop-manip.c (niter_for_unrolled_loop): Pass -1.
        (tree_transform_and_unroll_loop): Do not use frequencies
        * tree-ssa-loop-niter.c (estimate_numbers_of_iterations):
        Use reliable prediction only.
        * tree-ssa-loop-unswitch.c (hoist_guard): Do not use frequencies.
        * tree-ssa-sink.c (select_best_block): Use to_frequency.
        * tree-ssa-tail-merge.c (replace_block_by): Temporarily disable
        probability scaling.
        * tree-ssa-threadupdate.c (create_block_for_threading): Do
        not update frequency
        (any_remaining_duplicated_blocks): Likewise.
        (update_profile): Likewise.
        (estimated_freqs_path): Delete.
        (freqs_to_counts_path): Delete.
        (clear_counts_path): Delete.
        (ssa_fix_duplicate_block_edges): Likewise.
        (duplicate_thread_path): Likewise.
        * tree-switch-conversion.c (gen_inbound_check): Use counts.
        * tree-tailcall.c (decrease_profile): Do not update frequency.
        (eliminate_tail_call): Likewise.
        * tree-vect-loop-manip.c (vect_do_peeling): Likewise.
        * tree-vect-loop.c (scale_profile_for_vect_loop): Likewise.
        (optimize_mask_stores): Likewise.
        * tree-vect-stmts.c (vectorizable_simd_clone_call): Likewise.
        * ubsan.c (ubsan_expand_null_ifn): Update profile.
        (ubsan_expand_ptr_ifn): Update profile.
        * value-prof.c (gimple_ic): Simplify.
        * value-prof.h (gimple_ic): Update prototype.
        * ipa-inline-transform.c (inline_transform): Fix scaling conditoins.
        * ipa-inline.c (compute_uninlined_call_time): Be sure that
        counts are nonzero.
        (want_inline_self_recursive_call_p): Likewise.
        (resolve_noninline_speculation): Only cummulate defined counts.
        (inline_small_functions): Use nonzero_p.
        (ipa_inline): Do not access freed node.

2017-11-03  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_override_options_internal):
        Set PARAM_SCHED_PRESSURE_ALGORITHM to SCHED_PRESSURE_MODEL.

2017-11-03  Kito Cheng  <kito.cheng@gmail.com>

        * config/riscv/riscv.c (riscv_legitimize_move): Handle
        non-legitimate address.

2017-11-03  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (*lt0_disi): Delete.
        (*lt0_<mode>di, *lt0_<mode>si): New.

2017-11-03  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (move_from_CR_ov_bit): Change condition to
        TARGET_PAIRED_FLOAT.

2017-11-03  Siddhesh Poyarekar  <siddhesh.poyarekar@linaro.org>
            Jim Wilson  <jim.wilson@linaro.org>

        * config/aarch64/aarch64-cores.def (saphira): New CPU.
        * config/aarch64/aarch64-tune.md: Regenerated.
        * doc/invoke.texi (AArch64 Options/-mtune): Add "saphira".
        * gcc/config/aarch64/aarch64.c (saphira_tunings): New tuning table.

2017-11-03  Cupertino Miranda  <cmiranda@synopsys.com>

        * config/arc/arc.c (arc_save_restore): Corrected CFA note.
        (arc_expand_prologue): Restore blink for millicode.
        * config/arc/linux.h (LINK_EH_SPEC): Defined.

2017-11-03  Richard Sandiford  <richard.sandiford@linaro.org>

        PR target/82809
        * config/i386/i386.c (ix86_vector_duplicate_value): Use
        gen_vec_duplicate after forcing the scalar into a register.

2017-11-02  Segher Boessenkool  <segher@kernel.crashing.org>

        * combine (try_combine): Print the insns input to try_combine to the
        dump file.

2017-11-02  Steve Ellcey  <sellcey@cavium.com>

        PR target/79868
        * config/aarch64/aarch64-c.c (aarch64_pragma_target_parse):
        Remove second argument from aarch64_process_target_attr call.
        * config/aarch64/aarch64-protos.h (aarch64_process_target_attr):
        Ditto.
        * config/aarch64/aarch64.c (aarch64_attribute_info): Change
        field type.
        (aarch64_handle_attr_arch): Remove second argument.
        (aarch64_handle_attr_cpu): Ditto.
        (aarch64_handle_attr_tune): Ditto.
        (aarch64_handle_attr_isa_flags): Ditto.
        (aarch64_process_one_target_attr): Ditto.
        (aarch64_process_target_attr): Ditto.
        (aarch64_option_valid_attribute_p): Remove second argument.
        on aarch64_process_target_attr call.

2017-11-02  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic.c: Include "selftest-diagnostic.h".
        (selftest::assert_location_text): New function.
        (selftest::test_diagnostic_get_location_text): New function.
        (selftest::diagnostic_c_tests): Call it.

2017-11-02  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (OBJS-libcommon): Add selftest-diagnostic.o.
        * diagnostic-show-locus.c: Include "selftest-diagnostic.h".
        (class selftest::test_diagnostic_context): Move to...
        * selftest-diagnostic.c: New file.
        * selftest-diagnostic.h: New file.

2017-11-02  James Bowman  <james.bowman@ftdichip.com>

        * config/ft32/ft32.c (ft32_addr_space_legitimate_address_p): increase
        offset range for FT32B.
        * config/ft32/ft32.h: option "mcompress" enables relaxation.
        * config/ft32/ft32.md: Add TARGET_NOPM.
        * config/ft32/ft32.opt: Add mft32b, mcompress, mnopm.
        * gcc/doc/invoke.texi: Add mft32b, mcompress, mnopm.

2017-11-02  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.h (MALLOC_ABI_ALIGNMENT): New define.

2017-11-02  Jeff Law  <law@redhat.com>

        * gimple-ssa-sprintf.c (sprintf_dom_walker): Remove
        virtual keyword on FINAL OVERRIDE members.

        * tree-ssa-propagate.h (ssa_propagation_engine): Group
        virtuals together.  Add virtual destructor.
        (substitute_and_fold_engine): Similarly.

2017-11-02  Jan Hubicka  <hubicka@ucw.cz>

        * x86-tune.def (X86_TUNE_USE_INCDEC): Enable for Haswell+.

2017-11-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82795
        * tree-if-conv.c (predicate_mem_writes): Remove bogus assert.

2017-11-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * acinclude.m4 (gcc_AC_INITFINI_ARRAY): Don't require
        gcc_SUN_LD_VERSION.
        (gcc_GAS_CHECK_FEATURE): Remove.
        * configure.ac (ld_vers) <*-*-solaris2*>: Move comments from
        gcc_AC_INITFINI_ARRAY here.  Update for Solaris 11.4 changes.
        * configure: Regenerate.

2017-11-02  Claudiu Zissulescu <claziss@synopsys.com>

        * config/arc/arc.c (hwloop_optimize): Account for empty
        body loops.

2017-11-02  Richard Biener  <rguenther@suse.de>

        PR middle-end/82765
        * varasm.c (decode_addr_const): Make offset HOST_WIDE_INT.
        Truncate ARRAY_REF index and element size.

2017-11-01  Palmer Dabbelt  <palmer@dabbelt.com>

        * doc/invoke.texi (RISC-V Options): Use "@minus{}2 GB", not "-2 GB".

2017-11-01  Jeff Law  <law@redhat.com>

        * tree-ssa-ccp.c (ccp_folder): New class derived from
        substitute_and_fold_engine.
        (ccp_folder::get_value): New member function.
        (ccp_folder::fold_stmt): Renamed from ccp_fold_stmt.
        (ccp_fold_stmt): Remove prototype.
        (ccp_finalize): Call substitute_and_fold from the ccp_class.
        * tree-ssa-copy.c (copy_folder): New class derived from
        substitute_and_fold_engine.
        (copy_folder::get_value): Renamed from get_value.
        (fini_copy_prop): Call substitute_and_fold from copy_folder class.
        * tree-vrp.c (vrp_folder): New class derived from
        substitute_and_fold_engine.
        (vrp_folder::fold_stmt): Renamed from vrp_fold_stmt.
        (vrp_folder::get_value): New member function.
        (vrp_finalize): Call substitute_and_fold from vrp_folder class.
        (evrp_dom_walker::before_dom_children): Similarly for replace_uses_in.
        * tree-ssa-propagate.h (substitute_and_fold_engine): New class to
        provide a class interface to folder/substitute routines.
        (ssa_prop_fold_stmt_fn): Remove typedef.
        (ssa_prop_get_value_fn): Likewise.
        (subsitute_and_fold): Remove prototype.
        (replace_uses_in): Likewise.
        * tree-ssa-propagate.c (substitute_and_fold_engine::replace_uses_in):
        Renamed from replace_uses_in.  Call the virtual member function
        (substitute_and_fold_engine::replace_phi_args_in): Similarly.
        (substitute_and_fold_dom_walker): Remove initialization of
        data member entries for calbacks.  Add substitute_and_fold_engine
        member and initialize it.
        (substitute_and_fold_dom_walker::before_dom_children0: Use the
        member functions for get_value, replace_phi_args_in c
        replace_uses_in, and fold_stmt calls.
        (substitute_and_fold_engine::substitute_and_fold): Renamed from
        substitute_and_fold.  Remove assert.   Update ctor call.

        * tree-ssa-propagate.h (ssa_prop_visit_stmt_fn): Remove typedef.
        (ssa_prop_visit_phi_fn): Likewise.
        (class ssa_propagation_engine): New class to provide an interface
        into ssa_propagate.
        * tree-ssa-propagate.c (ssa_prop_visit_stmt): Remove file scoped
        variable.
        (ssa_prop_visit_phi): Likewise.
        (ssa_propagation_engine::simulate_stmt): Moved into class.
        Call visit_phi/visit_stmt from the class rather than via
        file scoped static variables.
        (ssa_propagation_engine::simulate_block): Moved into class.
        (ssa_propagation_engine::process_ssa_edge_worklist): Similarly.
        (ssa_propagation_engine::ssa_propagate): Similarly.  No longer
        set file scoped statics for the visit_stmt/visit_phi callbacks.
        * tree-complex.c (complex_propagate): New class derived from
        ssa_propagation_engine.
        (complex_propagate::visit_stmt): Renamed from complex_visit_stmt.
        (complex_propagate::visit_phi): Renamed from complex_visit_phi.
        (tree_lower_complex): Call ssa_propagate via the complex_propagate
        class.
        * tree-ssa-ccp.c: (ccp_propagate): New class derived from
        ssa_propagation_engine.
        (ccp_propagate::visit_phi): Renamed from ccp_visit_phi_node.
        (ccp_propagate::visit_stmt): Renamed from ccp_visit_stmt.
        (do_ssa_ccp): Call ssa_propagate from the ccp_propagate class.
        * tree-ssa-copy.c (copy_prop): New class derived from
        ssa_propagation_engine.
        (copy_prop::visit_stmt): Renamed from copy_prop_visit_stmt.
        (copy_prop::visit_phi): Renamed from copy_prop_visit_phi_node.
        (execute_copy_prop): Call ssa_propagate from the copy_prop class.
        * tree-vrp.c (vrp_prop): New class derived from ssa_propagation_engine.
        (vrp_prop::visit_stmt): Renamed from vrp_visit_stmt.
        (vrp_prop::visit_phi): Renamed from vrp_visit_phi_node.
        (execute_vrp): Call ssa_propagate from the vrp_prop class.

2017-11-01  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/82778
        PR rtl-optimization/82597
        * compare-elim.c (struct comparison): Add in_a_setter field.
        (find_comparison_dom_walker::before_dom_children): Remove killed
        bitmap and df_simulate_find_defs call, instead walk the defs.
        Compute last_setter and initialize in_a_setter.  Merge definitions
        with first initialization for a few variables.
        (try_validate_parallel): Use insn_invalid_p instead of
        recog_memoized.  Return insn rather than just the pattern.
        (try_merge_compare): Fix up comment.  Don't uselessly test if
        in_a is a REG_P.  Use cmp->in_a_setter instead of walking UD
        chains.
        (execute_compare_elim_after_reload): Remove df_chain_add_problem
        call.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64.c (aarch64_rtx_costs): Use
        aarch64_hard_regno_nregs to get the number of registers
        in a mode.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/constraints.md (Upl): Rename to...
        (Uaa): ...this.
        * config/aarch64/aarch64.md
        (*zero_extend<SHORT:mode><GPI:mode>2_aarch64, *addsi3_aarch64_uxtw):
        Update accordingly.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64.c (aarch64_add_constant_internal)
        (aarch64_add_constant, aarch64_add_sp, aarch64_sub_sp): Move
        earlier in file.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64.c (aarch64_evpc_trn, aarch64_evpc_uzp)
        (aarch64_evpc_zip, aarch64_evpc_ext, aarch64_evpc_rev)
        (aarch64_evpc_dup): Generate rtl direcly, rather than using
        named expanders.
        (aarch64_expand_vec_perm_const_1): Explicitly check for permutes
        of a single element.
        * config/aarch64/iterators.md: Add a comment above the permute
        unspecs to say that they are generated directly by
        aarch64_expand_vec_perm_const.
        * config/aarch64/aarch64-simd.md: Likewise the permute instructions.

2017-11-01  Nathan Sidwell  <nathan@acm.org>

        * tree-dump.c (dequeue_and_dump): Use HAS_DECL_ASSEMBLER_NAME_P.

2017-11-01  Palmer Dabbelt  <palmer@dabbelt.com>

        * doc/invoke.texi (RISC-V Options): Explicitly name the medlow
        and medany code models, and describe what they do.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>

        Revert accidental duplicate:

        * combine.c (can_change_dest_mode): Reject changes in
        REGMODE_NATURAL_SIZE.

2017-11-01  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/64682
        PR rtl-optimization/69567
        PR rtl-optimization/69737
        PR rtl-optimization/82683
        * combine.c (distribute_notes) <REG_DEAD>: If the new I2 sets the same
        register mentioned in the note, drop the note, unless it came from I3,
        in which case it should go to I3 again.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-ssa-dse.c (normalize_ref): Check whether the ranges overlap
        and return false if not.
        (clear_bytes_written_by, live_bytes_read): Update accordingly.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-ssa-alias.h (ranges_overlap_p): Return false if either
        range is known to be empty.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * simplify-rtx.c (simplify_const_unary_operation): Use GET_MODE_NUNITS
        and CONST_VECTOR_NUNITS instead of computing the number of units from
        the byte sizes of the vector and element.
        (simplify_binary_operation_1): Likewise.
        (simplify_const_binary_operation): Likewise.
        (simplify_ternary_operation): Likewise.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * var-tracking.c (INT_MEM_OFFSET): Replace with...
        (int_mem_offset): ...this new function.
        (var_mem_set, var_mem_delete_and_set, var_mem_delete)
        (find_mem_expr_in_1pdv, dataflow_set_preserve_mem_locs)
        (same_variable_part_p, use_type, add_stores, vt_get_decl_and_offset):
        Update accordingly.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * lower-subreg.c (interesting_mode_p): New function.
        (compute_costs, find_decomposable_subregs, decompose_register)
        (simplify_subreg_concatn, can_decompose_p, resolve_simple_move)
        (resolve_clobber, dump_choices): Use it.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtlhash.c (add_rtx): Use add_hwi for 'w' and add_int for 'i'.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * alias.c (find_base_value, find_base_term): Only process integer
        truncations.  Check the precision rather than the size.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * machmode.h (is_narrower_int_mode): New function
        * optabs.c (expand_float, expand_fix): Use it.
        * dwarf2out.c (rotate_loc_descriptor): Likewise.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtl.h (narrower_subreg_mode): New function.
        * ira-color.c (update_costs_from_allocno): Use it.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * optabs-query.h (convert_optab_p): New function, split out from...
        (convert_optab_handler): ...here.
        (widening_optab_handler): Delete.
        (find_widening_optab_handler): Remove permit_non_widening parameter.
        (find_widening_optab_handler_and_mode): Likewise.  Provide an
        override that operates on mode class wrappers.
        * optabs-query.c (widening_optab_handler): Delete.
        (find_widening_optab_handler_and_mode): Remove permit_non_widening
        parameter.  Assert that the two modes are the same class and that
        the "from" mode is narrower than the "to" mode.  Use
        convert_optab_handler instead of widening_optab_handler.
        * expmed.c (expmed_mult_highpart_optab): Use convert_optab_handler
        instead of widening_optab_handler.
        * expr.c (expand_expr_real_2): Update calls to
        find_widening_optab_handler.
        * optabs.c (expand_widen_pattern_expr): Likewise.
        (expand_binop_directly): Take the insn_code as a parameter.
        (expand_binop): Only call find_widening_optab_handler for
        conversion optabs; use optab_handler otherwise.  Update calls
        to find_widening_optab_handler and expand_binop_directly.
        Use convert_optab_handler instead of widening_optab_handler.
        * tree-ssa-math-opts.c (convert_mult_to_widen): Update calls to
        find_widening_optab_handler and use scalar_mode rather than
        machine_mode.
        (convert_plusminus_to_widen): Likewise.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * machmode.h (fixed_size_mode): New class.
        * rtl.h (get_pool_mode): Return fixed_size_mode.
        * gengtype.c (main): Add fixed_size_mode.
        * target.def (get_raw_result_mode): Return a fixed_size_mode.
        (get_raw_arg_mode): Likewise.
        * doc/tm.texi: Regenerate.
        * targhooks.h (default_get_reg_raw_mode): Return a fixed_size_mode.
        * targhooks.c (default_get_reg_raw_mode): Likewise.
        * config/ia64/ia64.c (ia64_get_reg_raw_mode): Likewise.
        * config/mips/mips.c (mips_get_reg_raw_mode): Likewise.
        * config/msp430/msp430.c (msp430_get_raw_arg_mode): Likewise.
        (msp430_get_raw_result_mode): Likewise.
        * config/avr/avr-protos.h (regmask): Use as_a <fixed_side_mode>
        * dbxout.c (dbxout_parms): Require fixed-size modes.
        * expr.c (copy_blkmode_from_reg, copy_blkmode_to_reg): Likewise.
        * gimple-ssa-store-merging.c (encode_tree_to_bitpos): Likewise.
        * omp-low.c (lower_oacc_reductions): Likewise.
        * simplify-rtx.c (simplify_immed_subreg): Take fixed_size_modes.
        (simplify_subreg): Update accordingly.
        * varasm.c (constant_descriptor_rtx::mode): Change to fixed_size_mode.
        (force_const_mem): Update accordingly.  Return NULL_RTX for modes
        that aren't fixed-size.
        (get_pool_mode): Return a fixed_size_mode.
        (output_constant_pool_2): Take a fixed_size_mode.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/rtl.texi (vec_series): Document.
        (const): Say that the operand can be a vec_series.
        * rtl.def (VEC_SERIES): New rtx code.
        * rtl.h (const_vec_series_p_1): Declare.
        (const_vec_series_p): New function.
        * emit-rtl.h (gen_const_vec_series): Declare.
        (gen_vec_series): Likewise.
        * emit-rtl.c (const_vec_series_p_1, gen_const_vec_series)
        (gen_vec_series): Likewise.
        * optabs.c (expand_mult_highpart): Use gen_const_vec_series.
        * simplify-rtx.c (simplify_unary_operation): Handle negations
        of vector series.
        (simplify_binary_operation_series): New function.
        (simplify_binary_operation_1): Use it.  Handle VEC_SERIES.
        (test_vector_ops_series): New function.
        (test_vector_ops): Call it.
        * config/powerpcspe/altivec.md (altivec_lvsl): Use
        gen_const_vec_series.
        (altivec_lvsr): Likewise.
        * config/rs6000/altivec.md (altivec_lvsl, altivec_lvsr): Likewise.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * doc/rtl.texi (const): Update description of address constants.
        Say that vector constants are allowed too.
        * common.md (E, F): Use CONSTANT_P instead of checking for
        CONST_VECTOR.
        * emit-rtl.c (gen_lowpart_common): Use const_vec_p instead of
        checking for CONST_VECTOR.
        * expmed.c (make_tree): Use build_vector_from_val for a CONST
        VEC_DUPLICATE.
        * expr.c (expand_expr_real_2): Check for vector modes instead
        of checking for CONST_VECTOR.
        * rtl.h (const_vec_p): New function.
        (const_vec_duplicate_p): Check for a CONST VEC_DUPLICATE.
        (unwrap_const_vec_duplicate): Handle them here too.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            David Malcolm  <dmalcolm@redhat.com>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtl.h (vec_duplicate_p): New function.
        * selftest-rtl.c (assert_rtx_eq_at): New function.
        * selftest-rtl.h (ASSERT_RTX_EQ): New macro.
        (assert_rtx_eq_at): Declare.
        * selftest.h (selftest::simplify_rtx_c_tests): Declare.
        * selftest-run-tests.c (selftest::run_tests): Call it.
        * simplify-rtx.c: Include selftest.h and selftest-rtl.h.
        (simplify_unary_operation_1): Recursively handle vector duplicates.
        (simplify_binary_operation_1): Likewise.  Handle VEC_SELECTs of
        vector duplicates.
        (simplify_subreg): Handle subregs of vector duplicates.
        (make_test_reg, test_vector_ops_duplicate, test_vector_ops)
        (selftest::simplify_rtx_c_tests): New functions.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * emit-rtl.h (gen_const_vec_duplicate): Declare.
        (gen_vec_duplicate): Likewise.
        * emit-rtl.c (gen_const_vec_duplicate_1): New function, split
        out from...
        (gen_const_vector): ...here.
        (gen_const_vec_duplicate, gen_vec_duplicate): New functions.
        (gen_rtx_CONST_VECTOR): Use gen_const_vec_duplicate for constants
        whose elements are all equal.
        * optabs.c (expand_vector_broadcast): Use gen_const_vec_duplicate.
        * simplify-rtx.c (simplify_const_unary_operation): Likewise.
        (simplify_relational_operation): Likewise.
        * config/aarch64/aarch64.c (aarch64_simd_gen_const_vector_dup):
        Likewise.
        (aarch64_simd_dup_constant): Use gen_vec_duplicate.
        (aarch64_expand_vector_init): Likewise.
        * config/arm/arm.c (neon_vdup_constant): Likewise.
        (neon_expand_vector_init): Likewise.
        (arm_expand_vec_perm): Use gen_const_vec_duplicate.
        (arm_block_set_unaligned_vect): Likewise.
        (arm_block_set_aligned_vect): Likewise.
        * config/arm/neon.md (neon_copysignf<mode>): Likewise.
        * config/i386/i386.c (ix86_expand_vec_perm): Likewise.
        (expand_vec_perm_even_odd_pack): Likewise.
        (ix86_vector_duplicate_value): Use gen_vec_duplicate.
        * config/i386/sse.md (one_cmpl<mode>2): Use CONSTM1_RTX.
        * config/ia64/ia64.c (ia64_expand_vecint_compare): Use
        gen_const_vec_duplicate.
        * config/ia64/vect.md (addv2sf3, subv2sf3): Use CONST1_RTX.
        * config/mips/mips.c (mips_gen_const_int_vector): Use
        gen_const_vec_duplicate.
        (mips_expand_vector_init): Use CONST0_RTX.
        * config/powerpcspe/altivec.md (abs<mode>2, nabs<mode>2): Likewise.
        (define_split): Use gen_const_vec_duplicate.
        * config/rs6000/altivec.md (abs<mode>2, nabs<mode>2): Use CONST0_RTX.
        (define_split): Use gen_const_vec_duplicate.
        * config/s390/vx-builtins.md (vec_genmask<mode>): Likewise.
        (vec_ctd_s64, vec_ctd_u64, vec_ctsl, vec_ctul): Likewise.
        * config/spu/spu.c (spu_const): Likewise.

2017-11-01  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (can_change_dest_mode): Reject changes in
        REGMODE_NATURAL_SIZE.

2017-10-31  Sandra Loosemore  <sandra@codesourcery.com>

        * configure.ac (--enable-libssp): New.
        (gcc_cv_libc_provides_ssp): Check for explicit setting before
        trying to determine target-specific default.  Adjust indentation.
        * configure: Regenerated.
        * doc/install.texi (Configuration): Expand --disable-libssp
        documentation.

2017-10-31  Daniel Santos  <daniel.santos@pobox.com>

        config/i386/i386.c (ix86_expand_epilogue): Correct stack
        calculation.

2017-10-31  Martin Jambor  <mjambor@suse.cz>

        PR c++/81702
        * gimple-fold.c (gimple_get_virt_method_for_vtable): Remove assert.

2017-10-31  David Malcolm  <dmalcolm@redhat.com>

        * auto-profile.c (autofdo_source_profile::read): Use
        UNKNOWN_LOCATION rather than 0.
        * diagnostic-core.h (warning_at_rich_loc): Rename to...
        (warning_at): ...this overload.
        (warning_at_rich_loc_n): Rename to...
        (warning_n): ...this overload.
        (error_at_rich_loc): Rename to...
        (error_at): ...this overload.
        (pedwarn_at_rich_loc): Rename to...
        (pedwarn): ...this overload.
        (permerror_at_rich_loc): Rename to...
        (permerror): ...this overload.
        (inform_at_rich_loc): Rename to...
        (inform): ...this overload.
        * diagnostic.c: (diagnostic_n_impl): Delete location_t-based decl.
        (diagnostic_n_impl_richloc): Rename to...
        (diagnostic_n_impl): ...this rich_location *-based decl.
        (inform_at_rich_loc): Rename to...
        (inform): ...this, and add an assertion.
        (inform_n): Update for removal of location_t-based diagnostic_n_impl.
        (warning_at_rich_loc): Rename to...
        (warning_at): ...this, and add an assertion.
        (warning_at_rich_loc_n): Rename to...
        (warning_n): ...this, and add an assertion.
        (warning_n): Update location_t-based implementation for removal of
        location_t-based diagnostic_n_impl.
        (pedwarn_at_rich_loc): Rename to...
        (pedwarn): ...this, and add an assertion.
        (permerror_at_rich_loc): Rename to...
        (permerror): ...this, and add an assertion.
        (error_n): Update for removal of location_t-based diagnostic_n_impl.
        (error_at_rich_loc): Rename to...
        (error_at): ...this, and add an assertion.
        * gcc.c (do_spec_1): Use UNKNOWN_LOCATION rather than 0.
        (driver::do_spec_on_infiles): Likewise.
        * substring-locations.c (format_warning_va): Update for renaming
        of inform_at_rich_loc.

2017-10-31  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * builtins.def (DEF_FLOATN_BUILTIN): Change most _Float<N> and
        _Float<N>X built-in functions so that the variant without the
        "__builtin_" prefix is only enabled for the GNU C and Objective C
        languages when they are in non-strict ANSI/ISO mode.
        (DEF_EXT_LIB_FLOATN_NX_BUILTINS): Likewise.
        * target.def (floatn_builtin_p): Add a target hook to control
        whether _Float<N> and _Float<N>X built-in functions without the
        "__builtin_" prefix are enabled, and return true for C and
        Objective C in the default hook.  Include langhooks.h in
        targhooks.c.
        * targhooks.h (default_floatn_builtin_p): Likewise.
        * targhooks.c (default_floatn_builtin_p): Likewise.
        * doc/tm.texi.in (TARGET_FLOATN_BUILTIN_P): Document the
        floatn_builtin_p target hook.
        * doc/tm.texi (TARGET_FLOATN_BUILTIN_P): Likewise.

2017-10-31  Matthew Fortune  <matthew.fortune@imgtec.com>
            Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/81803
        * lra-constraints.c (curr_insn_transform): Also reload the whole
        register for a strict subreg no wider than a word if this is for
        a WORD_REGISTER_OPERATIONS target.

2017-10-31  Jason Merrill  <jason@redhat.com>

        * gdbinit.in: Skip over inlines from timevar.h.

2017-10-31  Martin Liska  <mliska@suse.cz>

        * doc/gcov.texi: Document new option.
        * gcov.c (print_usage): Likewise print it.
        (process_args): Support the argument.
        (format_count): New function.
        (format_gcov): Use the function.

2017-10-31  Martin Liska  <mliska@suse.cz>

        * gcov.c (struct name_map): do not use typedef.
        Define operator== and operator<.
        (name_search): Remove.
        (name_sort): Remove.
        (main): Do not allocate names.
        (process_file): Add vertical space.
        (generate_results): Use std::find.
        (release_structures): Do not release memory.
        (find_source): Use std::find.

2017-10-31  Martin Liska  <mliska@suse.cz>

        * gcov.c (struct line_info): Remove it's typedef.
        (line_info::line_info): Add proper ctor.
        (line_info::has_block): Do not use a typedef.
        (struct source_info): Do not use typedef.
        (circuit): Likewise.
        (get_cycles_count): Likewise.
        (output_intermediate_file): Iterate via vector iterator.
        (add_line_counts): Use std::vector methods.
        (accumulate_line_counts): Likewise.
        (output_lines): Likewise.

2017-10-31  Martin Liska  <mliska@suse.cz>

        * gcov.c (struct source_info): Remove typedef.
        (source_info::source_info): Add proper ctor.
        (accumulate_line_counts): Use struct, not it's typedef.
        (output_gcov_file): Likewise.
        (output_lines): Likewise.
        (main): Do not allocate an array.
        (output_intermediate_file): Use size of vector container.
        (process_file): Resize the vector.
        (generate_results): Do not preallocate, use newly added vector
        lines.
        (release_structures): Do not release sources.
        (find_source): Use vector methods.
        (add_line_counts): Do not use typedef.

2017-10-31  Martin Liska  <mliska@suse.cz>

        * doc/gcov.texi: Document that.
        * gcov.c (add_line_counts): Mark lines with a non-executed
        statement.
        (output_line_beginning): Handle such lines.
        (output_lines): Pass new argument.
        (output_intermediate_file): Print it in intermediate format.

2017-10-31  Martin Liska  <mliska@suse.cz>

        * color-macros.h: New file.
        * diagnostic-color.c: Factor out color related to macros to
        color-macros.h.
        * doc/gcov.texi: Document -k option.
        * gcov.c (INCLUDE_STRING): Include string.h.
        (print_usage): Add -k option.
        (process_args): Parse it.
        (pad_count_string): New function.
        (output_line_beginning): Likewise.
        (DEFAULT_LINE_START): New macro.
        (output_lines): Support color output.

2017-10-31  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/82633
        * doc/gcov.texi: Document -fkeep-{static,inline}-functions and
        their interaction with GCOV infrastructure.
        * configure.ac: Add -fkeep-{inline,static}-functions to
        coverage_flags.
        * configure: Regenerate.

2017-10-31  Uros Bizjak  <ubizjak@gmail.com>

        PR target/82772
        * config/alpha/sync.md (fetchop_constr) <and>: Change to "rINM".

2017-10-31  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/82674
        * config/rs6000/rs6000.md (allocate_stack): Force update interval
        into a register if it does not fit into an immediate offset field.

2017-10-31  Olivier Hainque  <hainque@adacore.com>

        * gcc/Makefile.in (FLAGS_TO_PASS): Pass libsubdir as well.

2017-10-31  Julia Koval  <julia.koval@intel.com>

        * config.gcc: Add gfniintrin.h.
        * config/i386/gfniintrin.h: New.
        * config/i386/i386-builtin-types.def
        (__builtin_ia32_vgf2p8affineinvqb_v64qi,
        __builtin_ia32_vgf2p8affineinvqb_v64qi_mask,
        __builtin_ia32_vgf2p8affineinvqb_v32qi,
        __builtin_ia32_vgf2p8affineinvqb_v32qi_mask,
        __builtin_ia32_vgf2p8affineinvqb_v16qi,
        __builtin_ia32_vgf2p8affineinvqb_v16qi_mask): New builtins.
        * config/i386/i386-builtin.def (V64QI_FTYPE_V64QI_V64QI_INT_V64QI_UDI,
        V32QI_FTYPE_V32QI_V32QI_INT_V32QI_USI,
        V16QI_FTYPE_V16QI_V16QI_INT_V16QI_UHI,
        V64QI_FTYPE_V64QI_V64QI_INT): New types.
        * config/i386/i386.c (ix86_expand_args_builtin): Handle new types.
        * config/i386/immintrin.h: Include gfniintrin.h.
        * config/i386/sse.md (vgf2p8affineinvqb_*) New pattern.

2017-10-30  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc.c (HAVE_TARGET_EXECUTABLE_SUFFIX): Remove old kludge.

2017-10-30  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.md (ashldi3): Remove shift by 1 expansion.
        (arm_ashldi3_1bit): Remove pattern.
        (ashrdi3): Remove shift by 1 expansion.
        (arm_ashrdi3_1bit): Remove pattern.
        (lshrdi3): Remove shift by 1 expansion.
        (arm_lshrdi3_1bit): Remove pattern.
        * config/arm/arm.c (arm_rtx_costs_internal): Slightly increase
        cost of ashldi3 by 1.
        * config/arm/neon.md (ashldi3_neon): Remove shift by 1 expansion.
        (<shift>di3_neon): Likewise.

2017-10-30  Dominik Infuehr  <dominik.infuehr@theobroma-systems.com>

        * config/aarch64/aarch64-simd.md (*aarch64_simd_mov): Rename
        both identically named patterns to (*aarch64_simd_mov<VD:mode>)
        and (*aarch64_simd_mov<VQ:mode>).
        (*aarch64_simd_mov<VD:mode>): Change type attribute to match
        pattern alternative.
        (*aarch64_simd_mov<VQ:mode>): Re-order and change type
        attributes to match pattern alternative.

2017-10-30  Steven Munroe  <munroesj@gcc.gnu.org>

        * config.gcc (powerpc*-*-*): Add emmintrin.h.
        * config/rs6000/emmintrin.h: New file.
        * config/rs6000/x86intrin.h [__ALTIVEC__]: Include emmintrin.h.

2017-10-30  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/vfp.md (movdi_vfp): Merge changes from movdi_vfp_cortexa8.
        * (movdi_vfp_cortexa8): Remove pattern.

2017-10-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, alpha*-*-*): Remove DEC OSF/1
        etc. reference.
        (Specific, alpha*-dec-osf5.1): Remove.
        (Specific, mips-sgi-irix5): Remove.
        (Specific, mips-sgi-irix6): Remove.

2017-10-30  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/22141
        * gimple-ssa-store-merging.c (merged_store_group::apply_stores): Fix
        arguments to clear_bit_region_be.

2017-10-30  Jim Wilson  <wilson@tuliptree.org>

        * gimplify.c: Include memmodel.h.

2017-10-30  Martin Jambor  <mjambor@suse.cz>

        * omp-grid.c (grid_attempt_target_gridification): Also insert a
        condition whether loop should be executed at all.

2017-10-30  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add support for
        gimple folding of vec_madd() intrinsics.
        * config/rs6000/altivec.md (mulv8hi3): Rename altivec_vmladduhm to
        fmav8hi4.  (altivec_vmladduhm): Rename to fmav8hi4.
        * config/rs6000/rs6000-builtin.def: Rename vmladduhm to fmav8hi4

2017-10-30  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82762
        Revert
        2017-10-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82129
        Revert
        2017-08-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81181
        * tree-ssa-pre.c (compute_antic_aux): Defer clean() to ...
        (compute_antic): ... end of iteration here.

2017-10-30  Joseph Myers  <joseph@codesourcery.com>

        * doc/invoke.texi (C Dialect Options): Document -std=c17,
        -std=iso9899:2017 and -std=gnu17.
        * doc/standards.texi (C Language): Document C17 support.
        * doc/cpp.texi (Overview): Mention -std=c17.
        (Standard Predefined Macros): Document C11 and C17 values of
        __STDC_VERSION__.  Do not refer to C99 support as incomplete.
        * doc/extend.texi (Inline): Do not list individual options for
        standards newer than C99.
        * dwarf2out.c (highest_c_language, gen_compile_unit_die): Handle
        "GNU C17".
        * config/rl78/rl78.c (rl78_option_override): Handle "GNU C17"
        language name.

2017-10-30  Maxim Ostapenko  <m.ostapenko@samsung.com>

        * asan.c (asan_finish_file): Align asan globals array by shadow
        granularity.

2017-10-30  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/22141
        * gimple-ssa-store-merging.c: Include rtl.h and expr.h.
        (struct store_immediate_info): Add bitregion_start and bitregion_end
        fields.
        (store_immediate_info::store_immediate_info): Add brs and bre
        arguments and initialize bitregion_{start,end} from those.
        (struct merged_store_group): Add bitregion_start, bitregion_end,
        align_base and mask fields.  Drop unnecessary struct keyword from
        struct store_immediate_info.  Add do_merge method.
        (clear_bit_region_be): Use memset instead of loop storing zeros.
        (merged_store_group::do_merge): New method.
        (merged_store_group::merge_into): Use do_merge.  Allow gaps in between
        stores as long as the surrounding bitregions have no gaps.
        (merged_store_group::merge_overlapping): Use do_merge.
        (merged_store_group::apply_stores): Test that bitregion_{start,end}
        is byte aligned, rather than requiring that start and width are
        byte aligned.  Drop unnecessary struct keyword from
        struct store_immediate_info.  Allocate and populate also mask array.
        Make start of the arrays relative to bitregion_start rather than
        start and size them according to bitregion_{end,start} difference.
        (struct imm_store_chain_info): Drop unnecessary struct keyword from
        struct store_immediate_info.
        (pass_store_merging::gate): Punt if BITS_PER_UNIT or CHAR_BIT is not 8.
        (pass_store_merging::terminate_all_aliasing_chains): Drop unnecessary
        struct keyword from struct store_immediate_info.
        (imm_store_chain_info::coalesce_immediate_stores): Allow gaps in
        between stores as long as the surrounding bitregions have no gaps.
        Formatting fixes.
        (struct split_store): Add orig non-static data member.
        (split_store::split_store): Initialize orig to false.
        (find_constituent_stmts): Return store_immediate_info *, non-NULL
        if there is exactly a single original stmt.  Change stmts argument
        to pointer from reference, if NULL, don't push anything to it.  Add
        first argument, use it to optimize skipping over orig stmts that
        are known to be before bitpos already.  Simplify.
        (split_group): Return unsigned int count how many stores are or
        would be needed rather than a bool.  Add allow_unaligned argument.
        Change split_stores argument from reference to pointer, if NULL,
        only do a dry run computing how many stores would be produced.
        Rewritten algorithm to use both alignment and misalign if
        !allow_unaligned and handle bitfield stores with gaps.
        (imm_store_chain_info::output_merged_store): Set start_byte_pos
        from bitregion_start instead of start.  Compute allow_unaligned
        here, if true, do 2 split_group dry runs to compute which one
        produces fewer stores and prefer aligned if equal.  Punt if
        new count is bigger or equal than original before emitting any
        statements, rather than during that.  Remove no longer needed
        new_ssa_names tracking.  Replace num_stmts with
        split_stores.length ().  Use 32-bit stack allocated entries
        in split_stores auto_vec.  Try to reuse original store lhs/rhs1
        if possible.  Handle bitfields with gaps.
        (pass_store_merging::execute): Ignore bitsize == 0 stores.
        Compute bitregion_{start,end} for the stores and construct
        store_immediate_info with that.  Formatting fixes.

2017-10-30  Uros Bizjak  <ubizjak@gmail.com>

        PR target/82725
        * config/i386/i386.c (legitimate_pic_address_disp_p): Allow
        UNSPEC_DTPOFF and UNSPEC_NTPOFF with SImode immediate offset.

2017-10-29  Jim Wilson  <wilson@tuliptree.org>

        * gimplify.c: Include tm_p.h.

        * common.opt (gcoff): Re-add as ignored option.
        (gcoff1, gcoff2, gcoff3): Likewise.

        * Makefile.in (OBJS): Delete sdbout.o.
        (GTFILES): Delete $(srcdir)/sdbout.c.
        * debug.h: Delete sdb_debug_hooks.
        * final.c: Delete sdbout.h include.
        (final_scan_insn): Delete SDB_DEBUG check.
        (rest_of_clean_state): Likewise.
        * output.h: Delete sdb_begin_function_line.
        * sdbout.c: Delete.
        * sdbout.h: Delete.
        * toplev.c: Delete sdbout.h include.
        (process_options): Delete SDB_DEBUG check.
        * tree-core.h (tree_type_common): Delete pointer field of
        tree_type_symtab.
        * tree.c (copy_node): Clear TYPE_SYMTAB_DIE instead of
        TYPE_SYMTAB_POINTER.
        * tree.h (TYPE_SYMTAB_POINTER): Delete.
        (TYPE_SYMTAB_IS_POINTER): Delete.
        (TYPE_SYMTAB_IS_DIE): Renumber.
        * xcoffout.c: Refer to former sdbout.c file.
        (xcoffout_begin_prologue): Use past tense for sdbout.c reference.

        * doc/install.texi (--with-stabs): Delete COFF and ECOFF info.
        * doc/invoke.texi (SEEALSO): Delete adb and sdb references.
        (Debugging Options): Delete -gcoff.
        (-gstabs): Delete SDB reference.
        (-gcoff): Delete.
        (-gcoff@var{level}): Delete.
        * doc/passes.texi (Debugging information output): Delete SDB and
        sdbout.c references.
        * doc/tm.texi: Regenerate.
        * doc/tm.texi.in (DWARF_CIE_DATA_ALIGNMENT): Delete SDB from xref.
        (SDB and DWARF): Change node name to DWARF and delete SDB and COFF
        references.
        (DEBUGGER_AUTO_OFFSET): Delete COFF and SDB references.
        (PREFERRED_DEBUGGING_TYPE): Delete SDB_DEBUG and -gcoff references.
        (SDB_DEBUGGING_INFO): Delete.
        (PUT_SDB_@dots{}, SDB_DELIM, SDB_ALLOW_UNKNOWN_REFERENCES)
        SDB_ALLOW_FORWARD_REFERENCES, SDB_OUTPUT_SOURCE_LINE): Delete.
        * target.def (output_source_filename): Delete COFF reference.

        * common.opt (gcoff): Delete.
        (gxcoff+): Update Negative chain.
        * defaults.h: Delete all references to SDB_DEBUGGING_INFO and
        SDB_DEBUG.
        * dwarf2out.c (gen_array_type_die): Change SDB to debuggers.
        * flag-types.h (enum debug_info_type): Delete SDB_DEBUG.
        * function.c (number_blocks): Delete SDB_DEBUGGING_INFO, SDB_DEBUG,
        and SDB references.
        (expand_function_start): Change sdb reference to past tense.
        (expand_function_end): Change sdb reference to past tense.
        * gcc.c (cpp_unique_options): Delete gcoff3 reference.
        * opts.c (debug_type_names): Delete coff entry.
        (common_handle_option): Delete OPT_gcoff case.
        * system.h (SDB_DEBUG, SDB_DEBUGGING_INFO): Poison.

        * config/dbxcoff.h (PREFERRED_DEBUGGING_TYPE): Set to DBX_DEBUG.
        * config/cris/cris.h: Delete SDB reference in comment.
        * config/i386/cygming.h: Don't define SDB_DEBUGGING_INFO.
        (ASM_DECLARE_FUNCTION_NAME): Delete SDB reference from comment.
        * config/i386/gas.h: Don't define SDB_DEBUGGING_INFO.
        * config/i386/i386.c (svr4_dbx_register_map): Change SDB references
        to past tense.
        (ix86_expand_prologue): Likewise.
        * config/i386/winnt.c (i386_pe_start_function): Don't check SDB_DEBUG.
        * config/ia64/ia64.h: Likewise.
        * config/m68k/m68kelf.h (DBX_REGISTER_NUMBER): Delete SDB reference.
        * config/mips/mips.h (SUBTARGET_ASM_DEBUGGING_SPEC): Delete gcoff*
        support.
        * config/mmix/mmix.h: Likewise.
        * config/nds32/nds32.c: Likewise.
        * config/stormy/storym16.h: Likewise.
        * config/visium/visium.h: Likewise.
        * config/vx-common.h (SDB_DEBUGGING_INFO): Delete undef.

2017-10-28  Sandra Loosemore  <sandra@codesourcery.com>

        * config/nios2/nios2.h (FRAME_GROWS_DOWNWARD): Define to 1.
        * config/nios2/nios2.c (nios2_initial_elimination_offset):  Make
        FRAME_POINTER_REGNUM point at high end of local var area.

2017-10-27  Eric Botcazou  <ebotcazou@adacore.com>

        * bb-reorder.c (find_traces_1_round): Fix off-by-one index.
        Move comment around.  Do not reset best_edge for a copiable
        destination if the copy would cause a partition change.
        (better_edge_p): Remove redundant check.

2017-10-27  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-protos.h (ix86_fp_compare_mode): Remove prototype.

2017-10-27  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * builtins.c (CASE_MATHFN_FLOATN): New helper macro to add cases
        for math functions that have _Float<N> and _Float<N>X variants.
        (mathfn_built_in_2): Add support for math functions that have
        _Float<N> and _Float<N>X variants.
        (DEF_INTERNAL_FLT_FLOATN_FN): New helper macro.
        (expand_builtin_mathfn_ternary): Add support for fma with
        _Float<N> and _Float<N>X variants.
        (expand_builtin): Likewise.
        (fold_builtin_3): Likewise.
        * builtins.def (DEF_EXT_LIB_FLOATN_NX_BUILTINS): New macro to
        create math function _Float<N> and _Float<N>X variants as external
        library builtins.
        (BUILT_IN_COPYSIGN _Float<N> and _Float<N>X variants) Use
        DEF_EXT_LIB_FLOATN_NX_BUILTINS to make built-in functions using
        the __builtin_ prefix and if not strict ansi, without the prefix.
        (BUILT_IN_FABS _Float<N> and _Float<N>X variants): Likewise.
        (BUILT_IN_FMA _Float<N> and _Float<N>X variants): Likewise.
        (BUILT_IN_FMAX _Float<N> and _Float<N>X variants): Likewise.
        (BUILT_IN_FMIN _Float<N> and _Float<N>X variants): Likewise.
        (BUILT_IN_NAN _Float<N> and _Float<N>X variants): Likewise.
        (BUILT_IN_SQRT _Float<N> and _Float<N>X variants): Likewise.
        * builtin-types.def (BT_FN_FLOAT16_FLOAT16_FLOAT16_FLOAT16): New
        function signatures for fma _Float<N> and _Float<N>X variants.
        (BT_FN_FLOAT32_FLOAT32_FLOAT32_FLOAT32): Likewise.
        (BT_FN_FLOAT64_FLOAT64_FLOAT64_FLOAT64): Likewise.
        (BT_FN_FLOAT128_FLOAT128_FLOAT128_FLOAT128): Likewise.
        (BT_FN_FLOAT32X_FLOAT32X_FLOAT32X_FLOAT32X): Likewise.
        (BT_FN_FLOAT64X_FLOAT64X_FLOAT64X_FLOAT64X): Likewise.
        (BT_FN_FLOAT128X_FLOAT128X_FLOAT128X_FLOAT128X): Likewise.
        * gencfn-macros.c (print_case_cfn): Add support for math functions
        that have _Float<N> and _Float<N>X variants.
        (print_define_operator_list): Likewise.
        (fltfn_suffixes): Likewise.
        (main): Likewise.
        * internal-fn.def (DEF_INTERNAL_FLT_FLOATN_FN): New helper macro
        for math functions that have _Float<N> and _Float<N>X variants.
        (SQRT): Add support for sqrt, copysign, fmin and fmax _Float<N>
        and _Float<N>X variants.
        (COPYSIGN): Likewise.
        (FMIN): Likewise.
        (FMAX): Likewise.
        * fold-const.c (tree_call_nonnegative_warnv_p): Add support for
        copysign, fma, fmax, fmin, and sqrt _Float<N> and _Float<N>X
        variants.
        (integer_valued_read_call_p): Likewise.
        * fold-const-call.c (fold_const_call_ss): Likewise.
        (fold_const_call_sss): Add support for copysign, fmin, and fmax
        _Float<N> and _Float<N>X variants.
        (fold_const_call_ssss): Add support for fma _Float<N> and
        _Float<N>X variants.
        * gimple-ssa-backprop.c (backprop::process_builtin_call_use): Add
        support for copysign and fma _Float<N> and _Float<N>X variants.
        (backprop::process_builtin_call_use): Likewise.
        * tree-call-cdce.c (can_test_argument_range); Add support for
        sqrt _Float<N> and _Float<N>X variants.
        (edom_only_function): Likewise.
        (get_no_error_domain): Likewise.
        * tree-ssa-math-opts.c (internal_fn_reciprocal): Likewise.
        * tree-ssa-reassoc.c (attempt_builtin_copysign): Add support for
        copysign _Float<N> and _Float<N>X variants.
        * config/rs6000/rs6000-builtin.def (SQRTF128): Delete, this is now
        handled by machine independent code.
        (FMAF128): Likewise.
        * doc/cpp.texi (Common Predefined Macros): Document defining
        __FP_FAST_FMAF<N> and __FP_FAST_FMAF<N>X if the backend supports
        fma _Float<N> and _Float<N>X variants.

2017-10-27  Uros Bizjak  <ubizjak@gmail.com>

        PR target/82692
        * config/i386/i386-modes.def (CCFPU): Remove definition.
        * config/i386/i386.c (put_condition_mode): Remove CCFPU mode handling.
        (ix86_cc_modes_compatible): Ditto.
        (ix86_expand_carry_flag_compare): Ditto.
        (ix86_expand_int_movcc): Ditto.
        (ix86_expand_int_addcc): Ditto.
        (ix86_reverse_condition): Ditto.
        (ix86_unordered_fp_compare): Rename from ix86_fp_compare_mode.
        Return true/false for unordered/ordered fp comparisons.
        (ix86_cc_mode): Always return CCFPmode for float mode comparisons.
        (ix86_prepare_fp_compare_args): Update for rename.
        (ix86_expand_fp_compare): Update for rename.  Generate unordered
        compare RTXes wrapped with UNSPEC_NOTRAP unspec.
        (ix86_expand_sse_compare_and_jump): Ditto.
        * config/i386/predicates.md (fcmov_comparison_operator):
        Remove CCFPU mode handling.
        (ix86_comparison_operator): Ditto.
        (ix86_carry_flag_operator): Ditto.
        * config/i386/i386.md (UNSPEC_NOTRAP): New unspec.
        (*cmpu<mode>_i387): Wrap compare RTX with UNSPEC_NOTRAP unspec.
        (*cmpu<mode>_cc_i387): Ditto.
        (FPCMP): Remove mode iterator.
        (unord): Remove mode attribute.
        (unord_subst): New define_subst transformation
        (unord): New define_subst attribute.
        (unordered): Ditto.
        (*cmpi<unord><MODEF:mode>): Rewrite using unord_subst transformation.
        (*cmpi<unord>xf_i387): Ditto.
        * config/i386/sse.md (<sse>_<unord>comi<round_saeonly_name>): Merge
        from <sse>_comi<round_saeonly_name> and <sse>_ucomi<round_saeonly_name>
        using unord_subst transformation.
        * config/i386/subst.md (SUBST_A): Remove CCFP and CCFPU modes.
        (round_saeonly): Also handle CCFP mode.
        * reg-stack.c (subst_stack_regs_pat): Handle UNSPEC_NOTRAP unspec.
        Remove UNSPEC_SAHF unspec handling.

2017-10-27  Jan Hubicka  <hubicka@ucw.cz>

        * x86-tune.def (X86_TUNE_INTER_UNIT_MOVES_TO_VEC): Disable for Zen.

2017-10-27  Jeff Law  <law@redhat.com>

        * gimple-ssa-sprintf.c: Include domwalk.h.
        (class sprintf_dom_walker): New class, derived from dom_walker.
        (sprintf_dom_walker::before_dom_children): New function.
        (struct call_info): Moved into sprintf_dom_walker class
        (compute_formath_length, handle_gimple_call): Likewise.
        (sprintf_length::execute): Call the dominator walker rather
        than walking the statements.

        * tree-vrp.c (check_all_array_refs): Do not use wi->info to smuggle
        gimple statement locations.
        (check_array_bounds): Corresponding changes.  Get the statement's
        location directly from wi->stmt.

2017-10-27  Palmer Dabbelt  <palmer@dabbelt.com>

        PR target/82717
        * doc/invoke.texi (RISC-V) <-mabi>: Correct and improve.

2017-10-27  Jan Hubicka  <hubicka@ucw.cz>

        * config/i386/x86-tune.def (X86_TUNE_PARTIAL_REG_DEPENDENCY,
        X86_TUNE_MOVX): Disable for Haswell and newer CPUs.

2017-10-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/82703
        * config/i386/i386-protos.h (maybe_get_pool_constant): Removed.
        * config/i386/i386.c (maybe_get_pool_constant): Removed.
        (ix86_split_to_parts): Use avoid_constant_pool_reference instead of
        maybe_get_pool_constant.
        * config/i386/predicates.md (zero_extended_scalar_load_operand):
        Likewise.

2017-10-27  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, i?86-*-solaris2.10): Simplify gas
        2.26 caveat.  Update gas and gld versions.
        (Specific, *-*-solaris2*): Update binutils version.  Remove caveat
        reference.

2017-10-27  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * cgraph.h (set_malloc_flag): Declare.
        * cgraph.c (set_malloc_flag_1): New function.
        (set_malloc_flag): Likewise.
        * ipa-fnsummary.h (ipa_call_summary): Add new field is_return_callee.
        * ipa-fnsummary.c (ipa_call_summary::reset): Set is_return_callee to
        false.
        (read_ipa_call_summary): Add support for reading is_return_callee.
        (write_ipa_call_summary): Stream is_return_callee.
        * ipa-inline.c (ipa_inline): Remove call to ipa_free_fn_summary.
        * ipa-pure-const.c: Add headers ssa.h, alloc-pool.h, symbol-summary.h,
        ipa-prop.h, ipa-fnsummary.h.
        (pure_const_names): Change to static.
        (malloc_state_e): Define.
        (malloc_state_names): Define.
        (funct_state_d): Add field malloc_state.
        (varying_state): Set malloc_state to STATE_MALLOC_BOTTOM.
        (check_retval_uses): New function.
        (malloc_candidate_p): Likewise.
        (analyze_function): Add support for malloc attribute.
        (pure_const_write_summary): Stream malloc_state.
        (pure_const_read_summary): Add support for reading malloc_state.
        (dump_malloc_lattice): New function.
        (propagate_malloc): New function.
        (warn_function_malloc): New function.
        (ipa_pure_const::execute): Call propagate_malloc and
        ipa_free_fn_summary.
        (pass_local_pure_const::execute): Add support for malloc attribute.
        * ssa-iterators.h (RETURN_FROM_IMM_USE_STMT): New macro.
        * doc/invoke.texi: Document Wsuggest-attribute=malloc.

2017-10-27  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/82457
        * doc/invoke.texi: Document that one needs a non-strict ISO mode
        for fork-like functions to be properly instrumented.

2017-10-27  Richard Biener  <rguenther@suse.de>

        PR middle-end/81659
        * tree-eh.c (pass_lower_eh_dispatch::execute): Free dominator
        info when we redirected EH.

2017-10-26  Michael Collison  <michael.collison@arm.com>

        * config/aarch64/aarch64.md(<optab>_trunc><vf><GPI:mode>2):
        New pattern.
        (<optab>_trunchf<GPI:mode>2: New pattern.
        (<optab>_trunc<vgp><GPI:mode>2: New pattern.
        * config/aarch64/iterators.md (wv): New mode attribute.
        (vf, VF): New mode attributes.
        (vgp, VGP): New mode attributes.
        (s): Update attribute with SImode and DImode prefixes.

2017-10-26  Sandra Loosemore  <sandra@codesourcery.com>

        * config/nios2/constraints.md ("S"): Match r0rel_constant_p too.
        * config/nios2/nios2-protos.h (r0rel_constant_p): Declare.
        * config/nios2/nios2.c: (nios2_r0rel_sec_regex): New.
        (nios2_option_overide): Initialize it.  Don't allow R0-relative
        addressing with PIC.
        (nios2_rtx_costs): Handle r0rel_constant_p like gprel_constant_p.
        (nios2_symbolic_constant_p): Likewise.
        (nios2_legitimate_address_p): Likewise.
        (nios2_r0rel_section_name_p): New.
        (nios2_symbol_ref_in_r0rel_data_p): New.
        (nios2_emit_move_sequence): Handle r0rel_constant_p.
        (r0rel_constant_p): New.
        (nios2_print_operand_address): Handle r0rel_constant_p.
        (nios2_cdx_narrow_form_p): Likewise.
        * config/nios2/nios2.opt (mr0rel-sec=): New option.
        * doc/invoke.texi (Option Summary): Add -mr0rel-sec.
        (Nios II Options): Document -mr0rel-sec.

2017-10-26  Sandra Loosemore  <sandra@codesourcery.com>

        * config/nios2/nios2.c: Include xregex.h.
        (nios2_gprel_sec_regex): New.
        (nios2_option_overide): Initialize it.  Don't allow GP-relative
        addressing with PIC.
        (nios2_small_section_name_p): Check for regex match.
        * config/nios2/nios2.opt (mgprel-sec=): New option.
        * doc/invoke.texi (Option Summary): Add -mgprel-sec.
        (Nios II Options): Document -mgprel-sec.

2017-10-26  Jim Wilson  <wilson@tuliptree.org>

        * doc/invoke.texi (-fdebug-prefix-map): Expand documentation.

2017-10-26  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/82707
        * gimple.c (gimple_copy): Fix unsharing of
        GIMPLE_OMP_{SINGLE,TARGET,TEAMS}.

2017-10-26  Olga Makhotina  <olga.makhotina@intel.com>

        * config/i386/avx512fintrin.h (_mm512_cmpeq_pd_mask,
        _mm512_cmple_pd_mask, _mm512_cmplt_pd_mask,
        _mm512_cmpneq_pd_mask, _mm512_cmpnle_pd_mask,
        _mm512_cmpnlt_pd_mask, _mm512_cmpord_pd_mask,
        _mm512_cmpunord_pd_mask, _mm512_mask_cmpeq_pd_mask,
        _mm512_mask_cmple_pd_mask, _mm512_mask_cmplt_pd_mask,
        _mm512_mask_cmpneq_pd_mask, _mm512_mask_cmpnle_pd_mask,
        _mm512_mask_cmpnlt_pd_mask, _mm512_mask_cmpord_pd_mask,
        _mm512_mask_cmpunord_pd_mask, _mm512_cmpeq_ps_mask,
        _mm512_cmple_ps_mask, _mm512_cmplt_ps_mask,
        _mm512_cmpneq_ps_mask, _mm512_cmpnle_ps_mask,
        _mm512_cmpnlt_ps_mask, _mm512_cmpord_ps_mask,
        _mm512_cmpunord_ps_mask, _mm512_mask_cmpeq_ps_mask,
        _mm512_mask_cmple_ps_mask, _mm512_mask_cmplt_ps_mask,
        _mm512_mask_cmpneq_ps_mask, _mm512_mask_cmpnle_ps_mask,
        _mm512_mask_cmpnlt_ps_mask, _mm512_mask_cmpord_ps_mask,
        _mm512_mask_cmpunord_ps_mask): New intrinsics.

2017-10-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/aix.h (TARGET_IEEEQUAD_DEFAULT): Set long double
        default to IBM.
        * config/rs6000/darwin.h (TARGET_IEEEQUAD_DEFAULT): Likewise.
        * config/rs6000/rs6000.opt (-mabi=ieeelongdouble): Move the
        warning to rs6000.c.  Remove the Undocumented flag, since it has
        been documented.
        (-mabi=ibmlongdouble): Likewise.
        * config/rs6000/rs6000.c (TARGET_IEEEQUAD_DEFAULT): If it is not
        already set, set the default format for long double.
        (rs6000_debug_reg_global): Print whether long double is IBM or
        IEEE.
        (rs6000_option_override_internal): Rework setting long double
        format.  Only warn if the user is changing the long double default
        and they did not use -Wno-psabi.
        * doc/invoke.texi (PowerPC options): Update the documentation for
        -mabi=ieeelongdouble and -mabi=ibmlongdouble.

2017-10-26  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtl.h (wider_subreg_mode): New function.
        * ira.h (ira_sort_regnos_for_alter_reg): Take a machine_mode *
        rather than an unsigned int *.
        * ira-color.c (regno_max_ref_width): Replace with...
        (regno_max_ref_mode): ...this new variable.
        (coalesced_pseudo_reg_slot_compare): Update accordingly.
        Use wider_subreg_mode.
        (ira_sort_regnos_for_alter_reg): Likewise.  Take a machine_mode *
        rather than an unsigned int *.
        * lra-constraints.c (uses_hard_regs_p): Use wider_subreg_mode.
        (process_alt_operands): Likewise.
        (invariant_p): Likewise.
        * lra-spills.c (assign_mem_slot): Likewise.
        (add_pseudo_to_slot): Likewise.
        * lra.c (collect_non_operand_hard_regs): Likewise.
        (add_regs_to_insn_regno_info): Likewise.
        * reload1.c (regno_max_ref_width): Replace with...
        (regno_max_ref_mode): ...this new variable.
        (reload): Update accordingly.  Update call to
        ira_sort_regnos_for_alter_reg.
        (alter_reg): Update to use regno_max_ref_mode.  Call wider_subreg_mode.
        (init_eliminable_invariants): Update to use regno_max_ref_mode.
        (scan_paradoxical_subregs): Likewise.

2017-10-26  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.h (EXIT_IGNORE_STACK): Set if alloca is used.
        (aarch64_frame): Add emit_frame_chain boolean.
        * config/aarch64/aarch64.c (aarch64_frame_pointer_required)
        Move eh_return case to aarch64_layout_frame.
        (aarch64_layout_frame): Initialize emit_frame_chain.
        (aarch64_expand_prologue): Use emit_frame_chain.

2017-10-26  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_layout_frame):
        Ensure LR is always stored at the bottom of the callee-saves.
        Remove rarely used frame layout which saves callee-saves at top of
        frame, so the store of LR can be used as a valid probe in all cases.

2017-10-26  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_legitimize_address_displacement):
        Improve unaligned TImode/TFmode base/offset split.

2017-10-26  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * caller-save.c (mark_referenced_regs):  Use read_modify_subreg_p.
        * combine.c (find_single_use_1): Likewise.
        (expand_field_assignment): Likewise.
        (move_deaths): Likewise.
        * lra-constraints.c (simplify_operand_subreg): Likewise.
        (curr_insn_transform): Likewise.
        * lra.c (collect_non_operand_hard_regs): Likewise.
        (add_regs_to_insn_regno_info): Likewise.
        * rtlanal.c (reg_referenced_p): Likewise.
        (covers_regno_no_parallel_p): Likewise.

2017-10-26  Richard Sandiford  <richard.sandiford@linaro.org>

        * wide-int-print.cc (print_hex): Loop based on extract_uhwi.
        Don't print any bits outside the precision of the value.
        * wide-int.cc (test_printing): Add some new tests.

2017-10-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_as_ix86_xbrace_comment): Check if assembler
        supports -xbrace_comment option.
        * configure: Regenerate.
        * config.in: Regenerate.
        * config/i386/sol2.h (ASM_XBRACE_COMMENT_SPEC): Define.
        (ASM_CPU_SPEC): Use it.

2017-10-26  Richard Sandiford  <richard.sandiford@linaro.org>

        * target.def (static_rtx_alignment): New hook.
        * targhooks.h (default_static_rtx_alignment): Declare.
        * targhooks.c (default_static_rtx_alignment): New function.
        * doc/tm.texi.in (TARGET_STATIC_RTX_ALIGNMENT): New hook.
        * doc/tm.texi: Regenerate.
        * varasm.c (force_const_mem): Use targetm.static_rtx_alignment
        instead of targetm.constant_alignment.  Remove call to
        set_mem_attributes.
        * config/cris/cris.c (TARGET_STATIC_RTX_ALIGNMENT): Redefine.
        (cris_preferred_mininum_alignment): New function, split out from...
        (cris_constant_alignment): ...here.
        (cris_static_rtx_alignment): New function.
        * config/i386/i386.c (ix86_static_rtx_alignment): New function,
        split out from...
        (ix86_constant_alignment): ...here.
        (TARGET_STATIC_RTX_ALIGNMENT): Redefine.
        * config/mmix/mmix.c (TARGET_STATIC_RTX_ALIGNMENT): Redefine.
        (mmix_static_rtx_alignment): New function.
        * config/spu/spu.c (spu_static_rtx_alignment): New function.
        (TARGET_STATIC_RTX_ALIGNMENT): Redefine.

2017-10-26  Tamar Christina  <tamar.christina@arm.com>

        PR target/81800
        * config/aarch64/aarch64.md (lrint<GPF:mode><GPI:mode>2):
        Add flag_trapping_math and flag_fp_int_builtin_inexact.

2017-10-25  Palmer Dabbelt  <palmer@dabbelt.com>

        * config/riscv/riscv.md (ZERO_EXTEND_LOAD): Define.
        * config/riscv/pic.md (local_pic_load): Rename to local_pic_load_s,
        mark as a sign-extending load.
        (local_pic_load_u): Define.

2017-10-25  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/82062
        * fold-const.c (operand_equal_for_comparison_p): Also return true
        if ARG0 is a simple variant of ARG1 with narrower precision.
        (fold_ternary_loc): Always pass unstripped operands to the predicate.

2017-10-25  Jan Hubicka  <hubicka@ucw.cz>

        * i386.c (ix86_builtin_vectorization_cost): Compute scatter/gather
        cost correctly.
        * i386.h (processor_costs): Add gather_static, gather_per_elt,
        scatter_static, scatter_per_elt.
        * x86-tune-costs.h: Add new cost entries.

2017-10-25  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.h (vn_eliminate): Declare.
        * tree-ssa-pre.c (class eliminate_dom_walker, eliminate,
        class pass_fre): Move to ...
        * tree-ssa-sccvn.c (class eliminate_dom_walker, vn_eliminate,
        class pass_fre): ... here and adjust for statistics.

2017-10-25  Jakub Jelinek  <jakub@redhat.com>

        PR libstdc++/81706
        * attribs.c (attribute_value_equal): Use omp_declare_simd_clauses_equal
        for comparison of OMP_CLAUSEs regardless of flag_openmp{,_simd}.
        (duplicate_one_attribute, copy_attributes_to_builtin): New functions.
        * attribs.h (duplicate_one_attribute, copy_attributes_to_builtin): New
        declarations.

2017-10-25  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c (need_eh_cleanup, need_ab_cleanup, el_to_remove,
        el_to_fixup, el_todo, el_avail, el_avail_stack, eliminate_avail,
        eliminate_push_avail, eliminate_insert): Move inside...
        (class eliminate_dom_walker): ... this class in preparation
        of move.
        (fini_eliminate): Remove by merging with ...
        (eliminate): ... this function.  Adjust for class changes.
        (pass_pre::execute): Remove fini_eliminate call.
        (pass_fre::execute): Likewise.

2017-10-24  Jakub Jelinek  <jakub@redhat.com>

        PR target/82460
        * config/i386/sse.md (UNSPEC_VPERMI2, UNSPEC_VPERMI2_MASK): Remove.
        (VPERMI2, VPERMI2I): New mode iterators.
        (<avx512>_vpermi2var<mode>3_maskz): Remove 3 define_expand patterns.
        (<avx512>_vpermi2var<mode>3<sd_maskz_name>): Remove 3 define_insn
        patterns.
        (<avx512>_vpermi2var<mode>3_mask): New define_expand using VPERMI2
        mode iterator.  Remove 3 old define_insn patterns.
        (*<avx512>_vpermi2var<mode>3_mask): 2 new define_insn patterns.
        (<avx512>_vpermt2var<mode>3_maskz): Adjust 1 define_expand to use
        VPERMI2 mode iterator, remove the other two expanders.
        (<avx512>_vpermt2var<mode>3<sd_maskz_name>): Adjust 1 define_insn
        to use VPERMI2 mode iterator, add another alternative for vpermi2*
        instructions, remove the other two patterns.
        (<avx512>_vpermt2var<mode>3_mask): Adjust 1 define_insn to use VPERMI2
        mode iterator, remove the other two patterns.
        * config/i386/i386.c (ix86_expand_vec_perm_vpermi2): Renamed to ...
        (ix86_expand_vec_perm_vpermt2): ... this.  Swap mask and op0
        arguments, use gen_*vpermt2* expanders instead of gen_*vpermi2*
        and adjust argument order accordingly.
        (ix86_expand_vec_perm): Adjust caller.
        (expand_vec_perm_1): Likewise.
        (expand_vec_perm_vpermi2_vpshub2): Rename to ...
        (expand_vec_perm_vpermt2_vpshub2): ... this.
        (ix86_expand_vec_perm_const_1): Adjust caller.
        (ix86_vectorize_vec_perm_const_ok): Adjust comments.

        PR target/82370
        * config/i386/sse.md (VIMAX_AVX2): Remove V4TImode.
        (VIMAX_AVX2_AVX512BW, VIMAX_AVX512VL): New mode iterators.
        (vec_shl_<mode>): Remove unused expander.
        (avx512bw_<shift_insn><mode>3): New define_insn.
        (<sse2_avx2>_ashl<mode>3, <sse2_avx2>_lshr<mode>3): Replaced by ...
        (<sse2_avx2>_<shift_insn><mode>3): ... this.  New define_insn.

2017-10-24  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/82466
        * doc/invoke.texi ([Wbuiltin-declaration-mismatch]): Extend
        description.

2017-10-24  Wilco Dijkstra  <wdijkstr@arm.com>

        PR rtl-optimization/82396
        * gcc/haifa-sched.c (ready_sort_real): Remove qsort workaround.
        (autopref_multipass_init): Simplify initialization.
        (autopref_rank_data): Simplify sort order.
        * gcc/sched-int.h (autopref_multipass_data_): Remove
        multi_mem_insn_p, min_offset and max_offset.

2017-10-24  Wilco Dijkstra  <wdijkstr@arm.com>

        PR middle-end/60580
        * config/aarch64/aarch64.c (aarch64_frame_pointer_required)
        Check special value of flag_omit_frame_pointer.
        (aarch64_can_eliminate): Likewise.
        (aarch64_override_options_after_change_1): Simplify handling of
        -fomit-frame-pointer and -fomit-leaf-frame-pointer.

2017-10-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82697
        * tree-ssa-phiopt.c (cond_store_replacement): Use alias-set
        zero for conditional load and unconditional store.

2017-10-24  H.J. Lu  <hongjiu.lu@intel.com>

        * doc/install.texi: Document bootstrap-cet.

2017-10-24  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/82659
        * config/i386/i386.c (rest_of_insert_endbranch): Don't insert
        ENDBR instruction at function entrance if function is only
        called directly.

2017-10-24  Jakub Jelinek  <jakub@redhat.com>

        PR target/82628
        * config/i386/i386.md (addcarry<mode>, subborrow<mode>): Change
        patterns to better describe from which operation the CF is computed.
        (addcarry<mode>_0, subborrow<mode>_0): New patterns.
        * config/i386/i386.c (ix86_expand_builtin) <case handlecarry>: Pass
        one LTU with [DT]Imode and another one with [SD]Imode.  If arg0
        is 0, use _0 suffixed expanders instead of emitting a comparison
        before it.

2017-10-06  Sergey Shalnov  <Sergey.Shalnov@intel.com>

        * config/i386/i386.md(*movsf_internal, *movdf_internal):
        Avoid 512-bit AVX modes for TARGET_PREFER_AVX256.

2017-10-24  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/82569
        * tree-outof-ssa.h (always_initialized_rtx_for_ssa_name_p): Delete.
        * expr.c (expand_expr_real_1) <expand_decl_rtl>: Revert latest change.
        * loop-iv.c (iv_get_reaching_def): Likewise.
        * cfgexpand.c (expand_one_ssa_partition): Initialize the RTX if the
        variable is promoted and the partition contains undefined values.

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

        * config/nios2/nios2.c (nios2_rtx_costs): Make costs better
        reflect reality.
        (nios2_address_cost): Define.
        (nios2_legitimize_address): Recognize (exp + constant) directly.
        (TARGET_ADDRESS_COST): Define.

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

        * config/nios2/nios2-protos.h (nios2_large_constant_p): Declare.
        (nios2_symbolic_memory_operand_p): Declare.
        (nios2_split_large_constant): Declare.
        (nios2_split_symbolic_memory_operand): Declare.
        * config/nios2/nios2.c: Adjust includes.
        (nios2_symbolic_constant_allowed): New.
        (nios2_symbolic_constant_p): New.
        (nios2_plus_symbolic_constant_p): New.
        (nios2_valid_addr_expr_p): Recognize addresses involving
        symbolic constants.
        (nios2_legitimate_address_p): Likewise, also LO_SUM.
        (nios2_symbolic_memory_operand_p): New.
        (nios2_large_constant_p): New.
        (nios2_split_large_constant): New.
        (nios2_split_plus_large_constant): New.
        (nios2_split_symbolic_memory_operand): New.
        (nios2_legitimize_address): Code refactoring.  Handle addresses
        involving symbolic constants.
        (nios2_emit_move_sequence): Likewise.
        (nios2_print_operand): Improve error output.
        (nios2_print_operand_address): Handle LO_SUM.
        (nios2_cdx_narrow_form_p): Likewise.
        * config/nios2/nios2.md (movqi_internal): Add splitter for memory
        operands involving symbolic constants.
        (movhi_internal, movsi_internal): Likewise.
        (zero_extendhisi2, zero_extendqi<mode>2): Likewise.
        (extendhisi2, extendqi<mode>2): Likewise.

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

        * tree-pass.h (PROP_rtl_split_insns): Define.
        * recog.c (pass_data_split_all_insns): Provide PROP_rtl_split_insns.

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

        * config/nios2/nios2.c (TARGET_LRA_P): Don't override.

2017-10-23  Jakub Jelinek  <jakub@redhat.com>

        PR debug/82630
        * target.def (const_not_ok_for_debug_p): Default to
        default_const_not_ok_for_debug_p instead of hook_bool_rtx_false.
        * targhooks.h (default_const_not_ok_for_debug_p): New declaration.
        * targhooks.c (default_const_not_ok_for_debug_p): New function.
        * dwarf2out.c (const_ok_for_output_1): Only reject UNSPECs for
        which targetm.const_not_ok_for_debug_p returned true.
        * config/arm/arm.c (arm_const_not_ok_for_debug_p): Return true
        for UNSPECs.
        * config/powerpcspe/powerpcspe.c (rs6000_const_not_ok_for_debug_p):
        Likewise.
        * config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): Likewise.
        * config/i386/i386.c (ix86_delegitimize_address_1): Don't delegitimize
        UNSPEC_GOTOFF with addend into addend - _GLOBAL_OFFSET_TABLE_ + symbol
        if !base_term_p.
        (ix86_const_not_ok_for_debug_p): New function.
        (i386_asm_output_addr_const_extra): Handle UNSPEC_GOTOFF.
        (TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.

2017-10-23  David Malcolm  <dmalcolm@redhat.com>

        PR bootstrap/82610
        * system.h: Conditionally include "unique-ptr.h" if
        INCLUDE_UNIQUE_PTR is defined.
        * unique-ptr-tests.cc: Remove include of "unique-ptr.h" in favor
        of defining INCLUDE_UNIQUE_PTR before including "system.h".

2017-10-23  Sebastian Perta  <sebastian.perta@renesas.com>

        * config/rl78/rl78.md: New define_expand "subdi3".

2017-10-23  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/82673
        * config/i386/i386.c (ix86_finalize_stack_frame_flags): Skip
        DF_REF_INSN if DF_REF_INSN_INFO is false.

2017-10-23  Jan Hubicka  <hubicka@ucw.cz>

        * i386.c (dimode_scalar_chain::compute_convert_gain): Use
        xmm_move instead of sse_move.
        (sse_store_index): New function.
        (ix86_register_move_cost): Be more sensible about mismatch stall;
        model AVX moves correctly; make difference between sse->integer and
        integer->sse.
        (ix86_builtin_vectorization_cost): Model correctly aligned and unaligned
        moves; make difference between SSE and AVX.
        * i386.h (processor_costs): Remove sse_move; add xmm_move, ymm_move
        and zmm_move. Increase size of sse load and store tables;
        add unaligned load and store tables; add ssemmx_to_integer.
        * x86-tune-costs.h: Update all entries according to real
        move latencies from Agner Fog's manual and chip documentation.

2017-10-23  Jakub Jelinek  <jakub@redhat.com>

        PR target/82628
        * config/i386/predicates.md (x86_64_dwzext_immediate_operand): New.
        * config/i386/constraints.md (Wf): New constraint.
        * config/i386/i386.md (UNSPEC_SBB): New unspec.
        (cmp<dwi>_doubleword): Removed.
        (sub<mode>3_carry_ccc, *sub<mode>3_carry_ccc_1): New patterns.
        (sub<mode>3_carry_ccgz): Use unspec instead of compare.
        * config/i386/i386.c (ix86_expand_branch) <case E_TImode>: Don't
        expand with cmp<dwi>_doubleword.  For LTU and GEU use
        sub<mode>3_carry_ccc instead of sub<mode>3_carry_ccgz and use CCCmode.

        * common.opt (gcolumn-info): Enable by default.
        * doc/invoke.texi (gcolumn-info): Document new default.

2017-10-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82672
        * graphite-isl-ast-to-gimple.c (graphite_copy_stmts_from_block):
        Fold the stmt if we propagated into it.

2017-10-23  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c (bitmap_remove_from_set): Rename to...
        (bitmap_remove_expr_from_set): ... this.  All callers call this
        for non-constant values.
        (bitmap_set_subtract): Rename to...
        (bitmap_set_subtract_expressions): ... this.  Adjust and
        optimize.
        (bitmap_set_contains_value): Remove superfluous check.
        (bitmap_set_replace_value): Inline into single caller ...
        (bitmap_value_replace_in_set): ... here and simplify.
        (dependent_clean): Merge into ...
        (clean): ... this using an overload.  Adjust.
        (prune_clobbered_mems): Adjust.
        (compute_antic_aux): Likewise.
        (compute_partial_antic_aux): Likewise.

2017-10-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82129
        Revert
        2017-08-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81181
        * tree-ssa-pre.c (compute_antic_aux): Defer clean() to ...
        (compute_antic): ... end of iteration here.

2017-10-23  Richard Sandiford  <richard.sandiford@linaro.org>

        * target.def (starting_frame_offset): New hook.
        * doc/tm.texi (STARTING_FRAME_OFFSET): Remove in favor of...
        (TARGET_STARTING_FRAME_OFFSET): ...this new hook.
        * doc/tm.texi.in: Regenerate.
        * hooks.h (hook_hwi_void_0): Declare.
        * hooks.c (hook_hwi_void_0): New function.
        * doc/rtl.texi: Refer to TARGET_STARTING_FRAME_OFFSET instead of
        STARTING_FRAME_OFFSET.
        * builtins.c (expand_builtin_setjmp_receiver): Likewise.
        * reload1.c (reload): Likewise.
        * cfgexpand.c (expand_used_vars): Use targetm.starting_frame_offset
        instead of STARTING_FRAME_OFFSET.
        * function.c (try_fit_stack_local): Likewise.
        (assign_stack_local_1): Likewise
        (instantiate_virtual_regs): Likewise.
        * rtlanal.c (rtx_addr_can_trap_p_1): Likewise.
        * config/avr/avr.md (nonlocal_goto_receiver): Likewise.
        * config/aarch64/aarch64.h (STARTING_FRAME_OFFSET): Delete.
        * config/alpha/alpha.h (STARTING_FRAME_OFFSET): Likewise.
        * config/arc/arc.h (STARTING_FRAME_OFFSET): Likewise.
        * config/arm/arm.h (STARTING_FRAME_OFFSET): Likewise.
        * config/bfin/bfin.h (STARTING_FRAME_OFFSET): Likewise.
        * config/c6x/c6x.h (STARTING_FRAME_OFFSET): Likewise.
        * config/cr16/cr16.h (STARTING_FRAME_OFFSET): Likewise.
        * config/cris/cris.h (STARTING_FRAME_OFFSET): Likewise.
        * config/fr30/fr30.h (STARTING_FRAME_OFFSET): Likewise.
        * config/frv/frv.h (STARTING_FRAME_OFFSET): Likewise.
        * config/ft32/ft32.h (STARTING_FRAME_OFFSET): Likewise.
        * config/h8300/h8300.h (STARTING_FRAME_OFFSET): Likewise.
        * config/i386/i386.h (STARTING_FRAME_OFFSET): Likewise.
        * config/ia64/ia64.h (STARTING_FRAME_OFFSET): Likewise.
        * config/m32c/m32c.h (STARTING_FRAME_OFFSET): Likewise.
        * config/m68k/m68k.h (STARTING_FRAME_OFFSET): Likewise.
        * config/mcore/mcore.h (STARTING_FRAME_OFFSET): Likewise.
        * config/mn10300/mn10300.h (STARTING_FRAME_OFFSET): Likewise.
        * config/moxie/moxie.h (STARTING_FRAME_OFFSET): Likewise.
        * config/msp430/msp430.h (STARTING_FRAME_OFFSET): Likewise.
        * config/nds32/nds32.h (STARTING_FRAME_OFFSET): Likewise.
        * config/nios2/nios2.h (STARTING_FRAME_OFFSET): Likewise.
        * config/nvptx/nvptx.h (STARTING_FRAME_OFFSET): Likewise.
        * config/pdp11/pdp11.h (STARTING_FRAME_OFFSET): Likewise.
        * config/riscv/riscv.h (STARTING_FRAME_OFFSET): Likewise.
        * config/rl78/rl78.h (STARTING_FRAME_OFFSET): Likewise.
        * config/rx/rx.h (STARTING_FRAME_OFFSET): Likewise.
        * config/s390/s390.h (STARTING_FRAME_OFFSET): Likewise.
        * config/sh/sh.h (STARTING_FRAME_OFFSET): Likewise.
        * config/sparc/sparc.c (sparc_compute_frame_size): Likewise.
        * config/sparc/sparc.h (STARTING_FRAME_OFFSET): Likewise.
        * config/spu/spu.h (STARTING_FRAME_OFFSET): Likewise.
        * config/stormy16/stormy16.h (STARTING_FRAME_OFFSET): Likewise.
        * config/tilegx/tilegx.h (STARTING_FRAME_OFFSET): Likewise.
        * config/tilepro/tilepro.h (STARTING_FRAME_OFFSET): Likewise.
        * config/v850/v850.h (STARTING_FRAME_OFFSET): Likewise.
        * config/visium/visium.h (STARTING_FRAME_OFFSET): Likewise.
        * config/avr/avr.h (STARTING_FRAME_OFFSET): Likewise.
        * config/avr/avr-protos.h (avr_starting_frame_offset): Likewise.
        * config/avr/avr.c (avr_starting_frame_offset): Make static and
        return a HOST_WIDE_INT.
        (avr_builtin_setjmp_frame_value): Use it instead of
        STARTING_FRAME_OFFSET.
        (TARGET_STARTING_FRAME_OFFSET): Redefine.
        * config/epiphany/epiphany.h (STARTING_FRAME_OFFSET): Delete.
        * config/epiphany/epiphany.c (epiphany_starting_frame_offset):
        New function.
        (TARGET_STARTING_FRAME_OFFSET): Redefine.
        * config/iq2000/iq2000.h (STARTING_FRAME_OFFSET): Delete.
        * config/iq2000/iq2000.c (iq2000_starting_frame_offset): New function.
        (TARGET_CONSTANT_ALIGNMENT): Redefine.
        * config/lm32/lm32.h (STARTING_FRAME_OFFSET): Delete.
        * config/lm32/lm32.c (lm32_starting_frame_offset): New function.
        (TARGET_STARTING_FRAME_OFFSET): Redefine.
        * config/m32r/m32r.h (STARTING_FRAME_OFFSET): Delete.
        * config/m32r/m32r.c (m32r_starting_frame_offset): New function.
        (TARGET_STARTING_FRAME_OFFSET): Redefine.
        * config/microblaze/microblaze.h (STARTING_FRAME_OFFSET): Delete.
        * config/microblaze/microblaze.c (microblaze_starting_frame_offset):
        New function.
        (TARGET_STARTING_FRAME_OFFSET): Redefine.
        * config/mips/mips.h (STARTING_FRAME_OFFSET): Delete.
        * config/mips/mips.c (mips_compute_frame_info): Refer to
        TARGET_STARTING_FRAME_OFFSET instead of STARTING_FRAME_OFFSET.
        (mips_starting_frame_offset): New function.
        (TARGET_STARTING_FRAME_OFFSET): Redefine.
        * config/mmix/mmix.h (STARTING_FRAME_OFFSET): Delete.
        * config/mmix/mmix-protos.h (mmix_starting_frame_offset): Delete.
        * config/mmix/mmix.c (mmix_starting_frame_offset): Make static
        and return a HOST_WIDE_INT.
        (TARGET_STARTING_FRAME_OFFSET): Redefine.
        (mmix_initial_elimination_offset): Refer to
        TARGET_STARTING_FRAME_OFFSET instead of STARTING_FRAME_OFFSET.
        * config/pa/pa.h (STARTING_FRAME_OFFSET): Delete.
        * config/pa/pa.c (pa_starting_frame_offset): New function.
        (pa_compute_frame_size): Use it instead of STARTING_FRAME_OFFSET.
        (pa_expand_prologue): Likewise.
        (TARGET_STARTING_FRAME_OFFSET): Redefine.
        * config/powerpcspe/aix.h (STARTING_FRAME_OFFSET): Split out
        !FRAME_GROWS_DOWNWARD handling to...
        (RS6000_STARTING_FRAME_OFFSET): ...this new macro.
        * config/powerpcspe/darwin.h (STARTING_FRAME_OFFSET): Split out
        !FRAME_GROWS_DOWNWARD handling to...
        (RS6000_STARTING_FRAME_OFFSET): ...this new macro.
        * config/powerpcspe/powerpcspe.h (STARTING_FRAME_OFFSET): Split out
        !FRAME_GROWS_DOWNWARD handling to...
        (RS6000_STARTING_FRAME_OFFSET): ...this new macro.
        * config/powerpcspe/powerpcspe.c (TARGET_STARTING_FRAME_OFFSET):
        Redefine.
        (rs6000_starting_frame_offset): New function.
        * config/rs6000/aix.h (STARTING_FRAME_OFFSET): Split out
        !FRAME_GROWS_DOWNWARD handling to...
        (RS6000_STARTING_FRAME_OFFSET): ...this new macro.
        * config/rs6000/darwin.h (STARTING_FRAME_OFFSET): Split out
        !FRAME_GROWS_DOWNWARD handling to...
        (RS6000_STARTING_FRAME_OFFSET): ...this new macro.
        * config/rs6000/rs6000.h (STARTING_FRAME_OFFSET): Split out
        !FRAME_GROWS_DOWNWARD handling to...
        (RS6000_STARTING_FRAME_OFFSET): ...this new macro.
        * config/rs6000/rs6000.c (TARGET_STARTING_FRAME_OFFSET): Refine.
        (rs6000_starting_frame_offset): New function.
        * config/vax/elf.h (STARTING_FRAME_OFFSET): Delete.
        * config/vax/vax.h (STARTING_FRAME_OFFSET): Delete.
        * config/vax/vax.c (vax_starting_frame_offset): New function.
        (vax_expand_prologue): Use it instead of STARTING_FRAME_OFFSET.
        (TARGET_STARTING_FRAME_OFFSET): Redefine.
        * config/xtensa/xtensa.h (STARTING_FRAME_OFFSET): Delete.
        * config/xtensa/xtensa.c (xtensa_starting_frame_offset): New function.
        (TARGET_STARTING_FRAME_OFFSET): Redefine.
        * system.h (STARTING_FRAME_OFFSET): Poison.

2017-10-23  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-vect-loop.c (vect_create_epilog_for_reduction): Use
        SCALAR_TYPE_MODE instead of TYPE_MODE.

2017-10-23  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * dwarf2out.c (loc_list_from_tree_1): Use SCALAR_INT_TYPE_MODE

2017-10-23  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expmed.c (expand_shift_1): Use scalar_mode for scalar_mode.

2017-10-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82129
        * tree-ssa-pre.c (bitmap_set_and): Remove.
        (compute_antic_aux): Compute ANTIC_OUT intersection in a way
        canonicalizing expressions in the set to those with lowest
        ID rather than taking that from the first edge.

2017-10-23  Richard Sandiford  <richard.sandiford@linaro.org>

        * combine.c (rtx_equal_for_field_assignment_p): Use
        byte_lowpart_offset.

2017-10-22  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * internal-fn.c (expand_direct_optab_fn): Don't assign directly
        to a SUBREG_PROMOTED_VAR.

2017-10-22  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * cfgexpand.c (expand_debug_expr): Use GET_MODE_UNIT_PRECISION.
        (expand_debug_source_expr): Likewise.
        * combine.c (combine_simplify_rtx): Likewise.
        * cse.c (fold_rtx): Likewise.
        * optabs.c (expand_float): Likewise.
        * simplify-rtx.c (simplify_unary_operation_1): Likewise.
        (simplify_binary_operation_1): Likewise.

2017-10-22  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (simplify_comparison): Use HWI_COMPUTABLE_MODE_P.
        (record_promoted_value): Likewise.
        * expr.c (expand_expr_real_2): Likewise.
        * ree.c (update_reg_equal_equiv_notes): Likewise.
        (combine_set_extension): Likewise.
        * rtlanal.c (low_bitmask_len): Likewise.
        * simplify-rtx.c (neg_const_int): Likewise.
        (simplify_binary_operation_1): Likewise.

2017-10-22  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * lra-spills.c (assign_mem_slot): Use subreg_size_lowpart_offset.
        * regcprop.c (maybe_mode_change): Likewise.
        * reload1.c (alter_reg): Likewise.

2017-10-22  Richard Sandiford  <richard.sandiford@linaro.org>

        * inchash.h (inchash::hash::add_wide_int): New function.
        * lto-streamer-out.c (hash_tree): Use it.

2017-10-22  Richard Sandiford  <richard.sandiford@linaro.org>

        * inchash.h (inchash::hash::add_wide_int): Rename to...
        (inchash::hash::add_hwi): ...this.
        * ipa-devirt.c (hash_odr_vtable): Update accordingly.
        (polymorphic_call_target_hasher::hash): Likewise.
        * ipa-icf.c (sem_function::get_hash, sem_function::init): Likewise.
        (sem_item::add_expr, sem_item::add_type, sem_variable::get_hash)
        (sem_item_optimizer::update_hash_by_addr_refs): Likewise.
        * lto-streamer-out.c (hash_tree): Likewise.
        * optc-save-gen.awk: Likewise.
        * tree.c (add_expr): Likewise.

2017-10-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52451
        * config/i386/i386.c (ix86_fp_compare_mode): Return CCFPmode
        for ordered inequality comparisons even with TARGET_IEEE_FP.

2017-10-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/82628
        * config/i386/i386.md (cmp<dwi>_doubleword): New pattern.
        * config/i386/i386.c (ix86_expand_branch) <case E_TImode>:
        Expand with cmp<dwi>_doubleword.

2017-10-21  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>

        * extend.texi: Add x86 specific to 'nocf_check' attribute.
        List CET intrinsics.
        * invoke.texi: Add -mcet, -mibt, -mshstk options.  Add x86
        specific to -fcf-protection option.

2017-10-21  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_IBT_SET): New.
        (OPTION_MASK_ISA_SHSTK_SET): Likewise.
        (OPTION_MASK_ISA_IBT_UNSET): Likewise.
        (OPTION_MASK_ISA_SHSTK_UNSET): Likewise.
        (ix86_handle_option): Add -mibt, -mshstk, -mcet handling.
        * config.gcc (extra_headers): Add cetintrin.h for x86 targets.
        (extra_objs): Add cet.o for Linux/x86 targets.
        (tmake_file): Add i386/t-cet for Linux/x86 targets.
        * config/i386/cet.c: New file.
        * config/i386/cetintrin.h: Likewise.
        * config/i386/t-cet: Likewise.
        * config/i386/cpuid.h (bit_SHSTK): New.
        (bit_IBT): Likewise.
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect and
        pass IBT and SHSTK bits.
        * config/i386/i386-builtin-types.def
        (VOID_FTYPE_UNSIGNED_PVOID): New.
        (VOID_FTYPE_UINT64_PVOID): Likewise.
        * config/i386/i386-builtin.def: Add CET intrinsics.
        * config/i386/i386-c.c (ix86_target_macros_internal): Add
        OPTION_MASK_ISA_IBT, OPTION_MASK_ISA_SHSTK handling.
        * config/i386/i386-passes.def: Add pass_insert_endbranch pass.
        * config/i386/i386-protos.h (make_pass_insert_endbranch): New
        prototype.
        * config/i386/i386.c (rest_of_insert_endbranch): New.
        (pass_data_insert_endbranch): Likewise.
        (pass_insert_endbranch): Likewise.
        (make_pass_insert_endbranch): Likewise.
        (ix86_notrack_prefixed_insn_p): Likewise.
        (ix86_target_string): Add -mibt, -mshstk flags.
        (ix86_option_override_internal): Add flag_cf_protection
        processing.
        (ix86_valid_target_attribute_inner_p): Set OPT_mibt, OPT_mshstk.
        (ix86_print_operand): Add 'notrack' prefix output.
        (ix86_init_mmx_sse_builtins): Add CET intrinsics.
        (ix86_expand_builtin): Expand CET intrinsics.
        (x86_output_mi_thunk): Add 'endbranch' instruction.
        * config/i386/i386.h (TARGET_IBT): New.
        (TARGET_IBT_P): Likewise.
        (TARGET_SHSTK): Likewise.
        (TARGET_SHSTK_P): Likewise.
        * config/i386/i386.md (unspecv): Add UNSPECV_NOP_RDSSP,
        UNSPECV_INCSSP, UNSPECV_SAVEPREVSSP, UNSPECV_RSTORSSP,
        UNSPECV_WRSS, UNSPECV_WRUSS, UNSPECV_SETSSBSY, UNSPECV_CLRSSBSY.
        (builtin_setjmp_setup): New pattern.
        (builtin_longjmp): Likewise.
        (rdssp<mode>): Likewise.
        (incssp<mode>): Likewise.
        (saveprevssp): Likewise.
        (rstorssp): Likewise.
        (wrss<mode>): Likewise.
        (wruss<mode>): Likewise.
        (setssbsy): Likewise.
        (clrssbsy): Likewise.
        (nop_endbr): Likewise.
        * config/i386/i386.opt: Add -mcet, -mibt, -mshstk and -mcet-switch
        options.
        * config/i386/immintrin.h: Include <cetintrin.h>.
        * config/i386/linux-common.h
        (file_end_indicate_exec_stack_and_cet): New prototype.
        (TARGET_ASM_FILE_END): New.

2017-10-20  Jan Hubicka  <hubicka@ucw.cz>

        * i386.c (ix86_builtin_vectorization_cost): Use existing rtx_cost
        latencies instead of having separate table; make difference between
        integer and float costs.
        * i386.h (processor_costs): Remove scalar_stmt_cost,
        scalar_load_cost, scalar_store_cost, vec_stmt_cost, vec_to_scalar_cost,
        scalar_to_vec_cost, vec_align_load_cost, vec_unalign_load_cost,
        vec_store_cost.
        * x86-tune-costs.h: Remove entries which has been removed in
        procesor_costs from all tables; make cond_taken_branch_cost
        and cond_not_taken_branch_cost COST_N_INSNS based.

2017-10-20  Jan Hubicka  <hubicka@ucw.cz>

        * x86-tune-costs.h (intel_cost, generic_cost): Fix move costs.

2017-10-20  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.md (isa): Remove fma_avx512f.
        * config/i386/sse.md (<avx512>_fmadd_<mode>_mask<round_name>,
        <avx512>_fmadd_<mode>_mask3<round_name>,
        <avx512>_fmsub_<mode>_mask<round_name>,
        <avx512>_fmsub_<mode>_mask3<round_name>,
        <avx512>_fnmadd_<mode>_mask<round_name>,
        <avx512>_fnmadd_<mode>_mask3<round_name>,
        <avx512>_fnmsub_<mode>_mask<round_name>,
        <avx512>_fnmsub_<mode>_mask3<round_name>,
        <avx512>_fmaddsub_<mode>_mask<round_name>,
        <avx512>_fmaddsub_<mode>_mask3<round_name>,
        <avx512>_fmsubadd_<mode>_mask<round_name>,
        <avx512>_fmsubadd_<mode>_mask3<round_name>): Remove isa attribute.
        (*vec_widen_umult_even_v16si<mask_name>,
        *vec_widen_smult_even_v16si<mask_name>): Likewise.
        (<mask_codefor>avx512bw_dbpsadbw<mode><mask_name>): Likewise.

2017-10-20  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>

        * extend.texi: Add 'nocf_check' documentation.
        * gimple.texi: Add second parameter to
        gimple_build_call_from_tree.
        * invoke.texi: Add -fcf-protection documentation.
        * rtl.texi: Add REG_CALL_NOTRACK documenation.

2017-10-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82473
        * tree-vect-loop.c (vectorizable_reduction): Properly get at
        the largest input type.

2017-10-20  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>

        * c-attribs.c (handle_nocf_check_attribute): New function.
        (c_common_attribute_table): Add 'nocf_check' handling.
        * gimple-parser.c: Add second argument NULL to
        gimple_build_call_from_tree.
        * attrib.c (comp_type_attributes): Check nocf_check attribute.
        * cfgexpand.c (expand_call_stmt): Set REG_CALL_NOCF_CHECK for
        call insn.
        * combine.c (distribute_notes): Add REG_CALL_NOCF_CHECK handling.
        * common.opt: Add fcf-protection flag.
        * emit-rtl.c (try_split): Add REG_CALL_NOCF_CHECK handling.
        * flag-types.h: Add enum cf_protection_level.
        * gimple.c (gimple_build_call_from_tree): Add second parameter.
        Add 'nocf_check' attribute propagation to gimple call.
        * gimple.h (gf_mask): Add GF_CALL_NOCF_CHECK.
        (gimple_build_call_from_tree): Update prototype.
        (gimple_call_nocf_check_p): New function.
        (gimple_call_set_nocf_check): Likewise.
        * gimplify.c: Add second argument to gimple_build_call_from_tree.
        * ipa-icf.c: Add nocf_check attribute in statement hash.
        * recog.c (peep2_attempt): Add REG_CALL_NOCF_CHECK handling.
        * reg-notes.def: Add REG_NOTE (CALL_NOCF_CHECK).
        * toplev.c (process_options): Add flag_cf_protection handling.

2017-10-19  Jan Hubicka  <hubicka@ucw.cz>

        * x86-tune-costs.h (core_cost): Fix div, move and sqrt latencies.

2017-10-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82603
        * tree-if-conv.c (predicate_mem_writes): Make sure to only
        remove false predicated stores.

2017-10-20  Richard Biener  <rguenther@suse.de>

        * graphite-isl-ast-to-gimple.c
        (translate_isl_ast_to_gimple::graphite_copy_stmts_from_block):
        Remove return value and simplify, dump copied stmt after lhs
        adjustment.
        (translate_isl_ast_to_gimple::translate_isl_ast_node_user):
        Reduce dump verbosity.
        (gsi_insert_earliest): Likewise.
        (translate_isl_ast_to_gimple::copy_bb_and_scalar_dependences): Adjust.
        * graphite.c (print_global_statistics): Adjust dumping.
        (print_graphite_scop_statistics): Likewise.
        (print_graphite_statistics): Do not dump loops here.
        (graphite_transform_loops): But here.

2017-10-20  Nicolas Roche  <roche@adacore.com>

        * configure.ac (ACX_PROG_GNAT): Append "libgnat" to include search dir.
        * configure: Regenerate.

2017-10-20  Jakub Jelinek  <jakub@redhat.com>

        PR target/82158
        * tree-cfg.c (pass_warn_function_return::execute): In noreturn
        functions when optimizing replace GIMPLE_RETURN stmts with
        calls to __builtin_unreachable ().

        PR sanitizer/82595
        * config/gnu-user.h (LIBTSAN_EARLY_SPEC): Add libtsan_preinit.o
        for -fsanitize=thread link of executables.
        (LIBLSAN_EARLY_SPEC): Add liblsan_preinit.o for -fsanitize=leak
        link of executables.

        PR target/82370
        * config/i386/sse.md (VI248_AVX2, VI248_AVX512BW, VI248_AVX512BW_2):
        New mode iterators.
        (<shift_insn><mode>3<mask_name>): Change the last of the 3
        define_insns for logical vector shifts to use VI248_AVX512BW
        iterator instead of VI48_AVX512, remove <mask_mode512bit_condition>
        condition, useless isa and prefix attributes.  Change the first
        2 of these define_insns to ...
        (<mask_codefor><shift_insn><mode>3<mask_name>): ... this, new
        define_insn for avx512vl.
        (<shift_insn><mode>3): ... and this, new define_insn without
        masking for non-avx512vl.

        PR target/82370
        * config/i386/sse.md (*andnot<mode>3,
        <mask_codefor><code><mode>3<mask_name>, *<code><mode>3): Split
        (=v,v,vm) alternative into (=x,x,xm) and (=v,v,vm), for 128-bit
        and 256-bit vectors, the (=x,x,xm) alternative and when mask is
        not applied use empty suffix even for TARGET_AVX512VL.
        * config/i386/subst.md (mask_prefix3, mask_prefix4): When mask
        is applied, supply evex,evex or evex,evex,evex instead of just
        evex.

2017-10-20  Julia Koval  <julia.koval@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_GFNI_SET,
        (OPTION_MASK_ISA_GFNI_UNSET): New.
        (ix86_handle_option): Handle OPT_mgfni.
        * config/i386/cpuid.h (bit_GFNI): New.
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect gfni.
        * config/i386/i386-c.c (ix86_target_macros_internal): Define __GFNI__.
        * config/i386/i386.c (ix86_target_string): Add -mgfni.
        (ix86_valid_target_attribute_inner_p): Add OPT_mgfni.
        * config/i386/i386.h (TARGET_GFNI, TARGET_GFNI_P): New.
        * config/i386/i386.opt: Add mgfni.

2017-10-20  Orlando Arias  <oarias@knights.ucf.edu>

        * config/msp430/msp430.c (msp430_option_override): Disable
        -fdelete-null-pointer-checks.
        * doc/invoke.text (-fdelete-null-pointer-checks): Document that.

2017-10-19  Jan Hubicka  <hubicka@ucw.cz>

        * x86-tune-costs.h (generic_cost, core_cost): Correct costs
        of x87 and SSE instructions.

2017-10-19  Jan Hubicka  <hubicka@ucw.cz>

        * asan.c (create_cond_insert_point): Do not update edge count.
        * auto-profile.c (afdo_propagate_edge): Update for edge count removal.
        (afdo_propagate_circuit): Likewise.
        (afdo_calculate_branch_prob): Likewise.
        (afdo_annotate_cfg): Likewise.
        * basic-block.h (struct edge_def): Remove count.
        (edge_def::count): New accessor.
        * bb-reorder.c (rotate_loop): Update.
        (find_traces_1_round): Update.
        (connect_traces): Update.
        (sanitize_hot_paths): Update.
        * cfg.c (unchecked_make_edge): Update.
        (make_single_succ_edge): Update.
        (check_bb_profile): Update.
        (dump_edge_info): Update.
        (update_bb_profile_for_threading): Update.
        (scale_bbs_frequencies_int): Update.
        (scale_bbs_frequencies_gcov_type): Update.
        (scale_bbs_frequencies_profile_count): Update.
        (scale_bbs_frequencies): Update.
        * cfganal.c (connect_infinite_loops_to_exit): Update.
        * cfgbuild.c (compute_outgoing_frequencies): Update.
        (find_many_sub_basic_blocks): Update.
        * cfgcleanup.c (try_forward_edges): Update.
        (try_crossjump_to_edge): Update
        * cfgexpand.c (expand_gimple_cond): Update
        (expand_gimple_tailcall): Update
        (construct_exit_block): Update
        * cfghooks.c (verify_flow_info): Update
        (redirect_edge_succ_nodup): Update
        (split_edge): Update
        (make_forwarder_block): Update
        (duplicate_block): Update
        (account_profile_record): Update
        * cfgloop.c (find_subloop_latch_edge_by_profile): Update.
        * cfgloopanal.c (expected_loop_iterations_unbounded): Update.
        * cfgloopmanip.c (scale_loop_profile): Update.
        (loopify): Update.
        (lv_adjust_loop_entry_edge): Update.
        * cfgrtl.c (try_redirect_by_replacing_jump): Update.
        (force_nonfallthru_and_redirect): Update.
        (purge_dead_edges): Update.
        (rtl_flow_call_edges_add): Update.
        * cgraphunit.c (init_lowered_empty_function): Update.
        (cgraph_node::expand_thunk): Update.
        * gimple-pretty-print.c (dump_probability): Update.
        (dump_edge_probability): Update.
        * gimple-ssa-isolate-paths.c (isolate_path): Update.
        * haifa-sched.c (sched_create_recovery_edges): Update.
        * hsa-gen.c (convert_switch_statements): Update.
        * ifcvt.c (dead_or_predicable): Update.
        * ipa-inline-transform.c (inline_transform): Update.
        * ipa-split.c (split_function): Update.
        * ipa-utils.c (ipa_merge_profiles): Update.
        * loop-doloop.c (add_test): Update.
        * loop-unroll.c (unroll_loop_runtime_iterations): Update.
        * lto-streamer-in.c (input_cfg): Update.
        (input_function): Update.
        * lto-streamer-out.c (output_cfg): Update.
        * modulo-sched.c (sms_schedule): Update.
        * postreload-gcse.c (eliminate_partially_redundant_load): Update.
        * predict.c (maybe_hot_edge_p): Update.
        (unlikely_executed_edge_p): Update.
        (probably_never_executed_edge_p): Update.
        (dump_prediction): Update.
        (drop_profile): Update.
        (propagate_unlikely_bbs_forward): Update.
        (determine_unlikely_bbs): Update.
        (force_edge_cold): Update.
        * profile.c (compute_branch_probabilities): Update.
        * reg-stack.c (better_edge): Update.
        * shrink-wrap.c (handle_simple_exit): Update.
        * tracer.c (better_p): Update.
        * trans-mem.c (expand_transaction): Update.
        (split_bb_make_tm_edge): Update.
        * tree-call-cdce.c: Update.
        * tree-cfg.c (gimple_find_sub_bbs): Update.
        (gimple_split_edge): Update.
        (gimple_duplicate_sese_region): Update.
        (gimple_duplicate_sese_tail): Update.
        (gimple_flow_call_edges_add): Update.
        (insert_cond_bb): Update.
        (execute_fixup_cfg): Update.
        * tree-cfgcleanup.c (cleanup_control_expr_graph): Update.
        * tree-complex.c (expand_complex_div_wide): Update.
        * tree-eh.c (lower_resx): Update.
        (unsplit_eh): Update.
        (cleanup_empty_eh_move_lp): Update.
        * tree-inline.c (copy_edges_for_bb): Update.
        (freqs_to_counts): Update.
        (copy_cfg_body): Update.
        * tree-ssa-dce.c (remove_dead_stmt): Update.
        * tree-ssa-ifcombine.c (update_profile_after_ifcombine): Update.
        * tree-ssa-loop-im.c (execute_sm_if_changed): Update.
        * tree-ssa-loop-ivcanon.c (remove_exits_and_undefined_stmts): Update.
        (unloop_loops): Update.
        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Update.
        * tree-ssa-loop-split.c (connect_loops): Update.
        (split_loop): Update.
        * tree-ssa-loop-unswitch.c (hoist_guard): Update.
        * tree-ssa-phionlycprop.c (propagate_rhs_into_lhs): Update.
        * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Update.
        * tree-ssa-reassoc.c (branch_fixup): Update.
        * tree-ssa-tail-merge.c (replace_block_by): Update.
        * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Update.
        (compute_path_counts): Update.
        (update_profile): Update.
        (recompute_probabilities): Update.
        (update_joiner_offpath_counts): Update.
        (estimated_freqs_path): Update.
        (freqs_to_counts_path): Update.
        (clear_counts_path): Update.
        (ssa_fix_duplicate_block_edges): Update.
        (duplicate_thread_path): Update.
        * tree-switch-conversion.c (hoist_edge_and_branch_if_true): Update.
        (case_bit_test_cmp): Update.
        (collect_switch_conv_info): Update.
        (gen_inbound_check): Update.
        (do_jump_if_equal): Update.
        (emit_cmp_and_jump_insns): Update.
        * tree-tailcall.c (decrease_profile): Update.
        (eliminate_tail_call): Update.
        * tree-vect-loop-manip.c (slpeel_add_loop_guard): Update.
        (vect_do_peeling): Update.
        * tree-vect-loop.c (scale_profile_for_vect_loop): Update.
        * ubsan.c (ubsan_expand_null_ifn): Update.
        (ubsan_expand_ptr_ifn): Update.
        * value-prof.c (gimple_divmod_fixed_value): Update.
        (gimple_mod_pow2): Update.
        (gimple_mod_subtract): Update.
        (gimple_ic): Update.
        (gimple_stringop_fixed_value): Update.

2017-10-19  Uros Bizjak  <ubizjak@gmail.com>

        PR target/82618
        * config/i386/i386.md (sub to cmp): New peephole2 pattern.

2017-10-19  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/82395
        * ira-color.c (allocno_priority_compare_func): Fix comparison step
        based on non_spilled_static_chain_regno_p.

2017-10-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (output_387_binary_op): Rewrite SSE part.
        (ix86_emit_mode_set): Rewrite insn mnemonic construction.
        (ix86_prepare_fp_compare_args): Redefine is_sse as bool.

2017-10-19  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/82596
        * tree.c (array_at_struct_end_p): Handle STRING_CST.

2017-10-19  Eric Botcazou  <ebotcazou@adacore.com>

        * asan.c (handle_builtin_alloca): Deal with all alloca variants.
        (get_mem_refs_of_builtin_call): Likewise.
        * builtins.c (expand_builtin_apply): Adjust call to
        allocate_dynamic_stack_space.
        (expand_builtin_alloca): For __builtin_alloca_with_align_and_max, pass
        the third argument to allocate_dynamic_stack_space, otherwise -1.
        (expand_builtin): Deal with all alloca variants.
        (is_inexpensive_builtin): Likewise.
        * builtins.def (BUILT_IN_ALLOCA_WITH_ALIGN_AND_MAX): New.
        * calls.c (special_function_p): Deal with all alloca variants.
        (initialize_argument_information): Adjust call to
        allocate_dynamic_stack_space.
        (expand_call): Likewise.
        * cfgexpand.c (expand_call_stmt): Deal with all alloca variants.
        * doc/extend.texi (Built-ins): Add __builtin_alloca_with_align_and_max
        * explow.c (allocate_dynamic_stack_space): Add MAX_SIZE parameter and
        use it for the stack usage computation.
        * explow.h (allocate_dynamic_stack_space): Adjust prototype.
        * function.c (gimplify_parameters): Call build_alloca_call_expr.
        * gimple-ssa-warn-alloca.c (alloca_call_type): Simplify control flow.
        Take into account 3rd argument of __builtin_alloca_with_align_and_max.
        (in_loop_p): Remove first argument and useless check.
        (pass_walloca::execute): Remove useless test and adjust call to above.
        * gimple.c (gimple_build_call_from_tree): Deal with all alloc variants
        * gimplify.c (gimplify_vla_decl): Call build_alloca_call_expr.
        (gimplify_call_expr): Deal with all alloca variants.
        * hsa-gen.c (gen_hsa_alloca): Likewise.
        (gen_hsa_insns_for_call): Likewise.
        * ipa-pure-const.c (special_builtin_state): Likewise.
        * tree-chkp.c (chkp_build_returned_bound): Likewise.
        * tree-object-size.c (alloc_object_size): Likewise.
        * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Likewise.
        (call_may_clobber_ref_p_1): Likewise.
        * tree-ssa-ccp.c (evaluate_stmt): Likewise.
        (ccp_fold_stmt): Likewise.
        (optimize_stack_restore): Likewise.
        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Likewise.
        (mark_all_reaching_defs_necessary_1): Likewise.
        (propagate_necessity): Likewise.
        (eliminate_unnecessary_stmts): Likewise.
        * tree.c (build_common_builtin_nodes): Build
        BUILT_IN_ALLOCA_WITH_ALIGN_AND_MAX.
        (build_alloca_call_expr): New function.
        * tree.h (ALLOCA_FUNCTION_CODE_P): New macro.
        (CASE_BUILT_IN_ALLOCA): Likewise.
        (build_alloca_call_expr): Declare.
        * varasm.c (incorporeal_function_p): Deal with all alloca variants.

2017-10-19  Eric Botcazou  <ebotcazou@adacore.com>

        PR debug/82509
        * dwarf2out.c (new_die_raw): New static inline function.
        (new_die): Use it to create the DIE.
        (add_AT_external_die_ref): Likewise.
        (clone_die): Likewise.
        (clone_as_declaration): Likewise.
        (dwarf2out_vms_debug_main_pointer): Likewise.
        (base_type_die): Likewise.  Remove early return for corner cases.
        Do not call add_pubtype on the DIE here.
        (is_base_type): Remove ERROR_MARK and return 0 for VOID_TYPE.
        (modified_type_die): Adjust the lookup for reverse order DIEs.  Skip
        typedefs for base types with DW_AT_endianity.  Make sure a DIE with
        native order exists for base types, attach the DIE manually and call
        add_pubtype on it.  Do not equate a reverse order DIE to the type.

2017-10-19  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.c (align_ok_ldrd_strd): New function.
        (mem_ok_for_ldrd_strd): New parameter align.  Extract the alignment of
        the mem into it.
        (gen_operands_ldrd_strd): Validate the alignment of the accesses.

2017-10-19  Jakub Jelinek  <jakub@redhat.com>

        * flag-types.h (enum sanitize_code): Add SANITIZE_BUILTIN.  Or
        SANITIZE_BUILTIN into SANITIZE_UNDEFINED.
        * sanitizer.def (BUILT_IN_UBSAN_HANDLE_INVALID_BUILTIN,
        BUILT_IN_UBSAN_HANDLE_INVALID_BUILTIN_ABORT): New builtins.
        * opts.c (sanitizer_opts): Add builtin.
        * ubsan.c (instrument_builtin): New function.
        (pass_ubsan::execute): Call it.
        (pass_ubsan::gate): Enable even for SANITIZE_BUILTIN.
        * doc/invoke.texi: Document -fsanitize=builtin.

        * ubsan.c (ubsan_expand_null_ifn): Use _v1 suffixed type mismatch
        builtins, store max (log2 (align), 0) into uchar field instead of
        align into uptr field.
        (ubsan_expand_objsize_ifn): Use _v1 suffixed type mismatch builtins,
        store uchar 0 field instead of uptr 0 field.
        (instrument_nonnull_return): Use _v1 suffixed nonnull return builtin,
        instead of passing one address of struct with 2 locations pass
        two addresses of structs with 1 location each.
        * sanitizer.def (BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH,
        BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH_ABORT,
        BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN,
        BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN_ABORT): Removed.
        (BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH_V1,
        BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH_V1_ABORT,
        BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN_V1,
        BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN_V1_ABORT): New builtins.

2017-10-19  Martin Liska  <mliska@suse.cz>

        PR driver/81829
        * file-find.c (remove_prefix): Remove.
        * file-find.h (remove_prefix): Likewise.
        * gcc-ar.c: Remove smartness of lookup.

2017-10-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (*call_indirect_aix<mode>,
        *call_value_indirect_aix<mode>, *call_indirect_elfv2<mode>,
        *call_value_indirect_elfv2<mode>): Add correct mode to the unspec.

2017-10-19  Jakub Jelinek  <jakub@redhat.com>

        PR target/82580
        * config/i386/i386.md (setcc + movzbl to xor + setcc): New peephole2.
        (setcc + and to xor + setcc): New peephole2.

2017-10-19  Tom de Vries  <tom@codesourcery.com>

        * doc/sourcebuild.texi (Test Directives, Variants of
        dg-require-support): Add dg-require-stack-size.

2017-10-19  Martin Liska  <mliska@suse.cz>

        PR sanitizer/82517
        * gimplify.c (gimplify_decl_expr): Do not instrument variables
        that have a large alignment.
        (gimplify_target_expr): Likewise.

2017-10-18  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/82602
        * ira.c (rtx_moveable_p): Return false for volatile asm.

2017-10-18  Uros Bizjak  <ubizjak@gmail.com>

        PR target/82580
        * config/i386/i386-modes.def (CCGZ): New CC mode.
        * config/i386/i386.md (sub<mode>3_carry_ccgz): New insn pattern.
        * config/i386/predicates.md (ix86_comparison_operator):
        Handle CCGZmode.
        * config/i386/i386.c (ix86_expand_branch) <case E_TImode>:
        Emulate LE, LEU, GT, GTU, LT, LTU, GE and GEU double-word comparisons
        with double-word subtraction.
        (put_condition_code): Handle CCGZmode.

2017-10-18  Aldy Hernandez  <aldyh@redhat.com>

        * wide-int.cc (debug (const wide_int &)): New.
        (debug (const wide_int *)): New.
        (debug (const widest_int &)): New.
        (debug (const widest_int *)): New.

2017-10-18  Vladimir Makarov  <vmakarov@redhat.com>

        PR middle-end/82556
        * lra-constraints.c (curr_insn_transform): Use non-input operand
        instead of output one for matched reload.

2017-10-18  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (INCLUDE_ALGORITHM): New header file.
        (tree-ssa-loop-ivopts.h): New header file.
        (struct builtin_info): New fields.
        (classify_builtin_1): Compute and record base and offset parts for
        memset builtin partition by calling strip_offset.
        (offset_cmp, fuse_memset_builtins): New functions.
        (finalize_partitions): Fuse adjacent memset partitions by calling
        above function.
        * tree-ssa-loop-ivopts.c (strip_offset): Delete static declaration.
        Expose the interface.
        * tree-ssa-loop-ivopts.h (strip_offset): New declaration.

2017-10-18  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/82574
        * tree-loop-distribution.c (find_single_drs): New parameter.  Check
        that data reference must be executed exactly once per iteration
        against the outermost loop in nest.
        (classify_partition): Update call to above function.

2017-10-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82591
        * graphite.c (graphite_transform_loops): Move code gen message
        printing ...
        * graphite-isl-ast-to-gimple.c (graphite_regenerate_ast_isl):
        Here.  Handle scop_to_isl_ast failing.
        (scop_to_isl_ast): Limit the number of ISL operations.

2017-10-18  Richard Biener  <rguenther@suse.de>

        * graphite-isl-ast-to-gimple.c
        (translate_isl_ast_to_gimple::set_rename): Simplify.
        (translate_isl_ast_to_gimple::set_rename_for_each_def): Inline...
        (graphite_copy_stmts_from_block): ... here.
        (copy_bb_and_scalar_dependences): Simplify.
        (add_parameters_to_ivs_params): Canonicalize.
        (generate_entry_out_of_ssa_copies): Simplify.
        * graphite-sese-to-poly.c (extract_affine_name): Simplify
        by passing in ISL dimension.
        (parameter_index_in_region_1): Rename to ...
        (parameter_index_in_region): ... this.
        (extract_affine): Adjust assert, pass down parameter index.
        (add_param_constraints): Use range-info when available.
        (build_scop_context): Adjust.
        * sese.c (new_sese_info): Adjust.
        (free_sese_info): Likewise.
        * sese.h (bb_map_t, rename_map_t, phi_rename, init_back_edge_pair_t):
        Remove unused typedefs.
        (struct sese_info_t): Simplify rename_map, remove incomplete_phis.

2017-10-18  Martin Liska  <mliska@suse.cz>

        * combine.c (simplify_compare_const): Add gcc_fallthrough.

2017-10-18  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_bb_fallthru_entry_likely): New function.
        (s390_sched_init): Do not reset s390_sched_state if we entered the
        current basic block via a fallthru edge and all others are unlikely.

2017-10-18  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        * config/s390/s390.c (NUM_SIDES): New variable.
        (LONGRUNNING_THRESHOLD): New variable.
        (LATENCY_FACTOR): New variable.
        (s390_sched_score): Decrease score for long-running instructions on
        wrong side.
        (s390_sched_variable_issue): Perform bookkeeping for long-running
        instructions.

2017-10-18  Richard Biener  <rguenther@suse.de>

        * graphite-isl-ast-to-gimple.c (gcc_expression_from_isl_ast_expr_id):
        Simplify with removal of the parameter rename map.
        (set_rename): Likewise.
        (should_copy_to_new_region): Likewise.
        (graphite_copy_stmts_from_block): Likewise.
        (copy_bb_and_scalar_dependences): Remove initialization of
        unused copied_bb_map.
        (copy_def): Remove.
        (copy_internal_parameters): Likewise.
        (graphite_regenerate_ast_isl): Do not call copy_internal_parameters.
        * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
        Use INTEGRAL_TYPE_P.
        (parameter_index_in_region_1): Rename to ...
        (assign_parameter_index_in_region): ... this.  Assert we have
        a parameter we handle.
        (scan_tree_for_params): Adjust.
        * sese.h (parameter_rename_map_t): Remove.
        (struct sese_info_t): Remove unused parameter_rename_map and
        copied_bb_map members.
        * sese.c (new_sese_info): Adjust.
        (free_sese_info): Likewise.

2017-10-18  Martin Liska  <mliska@suse.cz>

        PR sanitizer/82545
        * asan.c (asan_expand_poison_ifn): Do not put gimple stmt
        on an abnormal edge.

2017-10-18  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * doc/invoke.texi (ffunction-sections and fdata-sections):
        Update.

2017-10-17  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-loop-ivopts.c (add_autoinc_candidates): Bail out only if
        the use statement can throw internally.

2017-10-17  Eric Botcazou  <ebotcazou@adacore.com>

        * config/visium/visium.c (visium_select_cc_mode): Return CCmode for
        any RTX present on the RHS of a SET.
        * compare-elim.c (try_eliminate_compare): Restore comment.

2017-10-17  Jakub Jelinek  <jakub@redhat.com>

        * langhooks.h (struct lang_hooks): Document that tree_size langhook
        may be also called on tcc_type nodes.
        * langhooks.c (lhd_tree_size): Likewise.

2017-10-17  David Malcolm  <dmalcolm@redhat.com>

        * gimple-ssa-sprintf.c (fmtwarn): Update for changed signature of
        format_warning_at_substring.
        (maybe_warn): Convert source_range * param to a location_t.  Pass
        UNKNOWN_LOCATION rather than NULL to fmtwarn.
        (format_directive): Remove code to extract source_ranges and
        source_range * in favor of just a location_t.
        (parse_directive): Pass UNKNOWN_LOCATION rather than NULL to
        fmtwarn.
        * substring-locations.c (format_warning_va): Convert
        source_range * param to a location_t.
        (format_warning_at_substring): Likewise.
        * substring-locations.h (format_warning_va): Likewise.
        (format_warning_at_substring): Likewise.

2017-10-17  Jan Hubicka  <hubicka@ucw.cz>

        * target.h (enum vect_cost_for_stmt): Add vec_gather_load and
        vec_scatter_store
        * tree-vect-stmts.c (record_stmt_cost): Make difference between normal
        and scatter/gather ops.

        * aarch64/aarch64.c (aarch64_builtin_vectorization_cost): Add
        vec_gather_load and vec_scatter_store.
        * arm/arm.c (arm_builtin_vectorization_cost): Likewise.
        * powerpcspe/powerpcspe.c (rs6000_builtin_vectorization_cost): Likewise.
        * rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Likewise.
        * s390/s390.c (s390_builtin_vectorization_cost): Likewise.
        * spu/spu.c (spu_builtin_vectorization_cost): Likewise.
        * i386/i386.c (x86_builtin_vectorization_cost): Likewise.

2017-10-17  Uros Bizjak  <ubizjak@gmail.com>

        * reg-stack.c (compare_for_stack_reg): Add bool argument.
        Detect FTST instruction and handle its register pops.  Only pop
        second operand if can_pop_second_op is true.
        (subst_stack_regs_pat) <case COMPARE>: Detect FCOMI instruction to
        set can_pop_second_op to false in the compare_for_stack_reg call.

        * config/i386/i386.md (*cmpi<FPCMP:unord><MODEF:mode>): Only call
        output_fp_compare for stack register operands.
        * config/i386/i386.c (output_fp_compare): Do not output SSE compare
        instructions here.  Do not emit stack register pops here.  Assert
        that FCOMPP pops next to top stack register.  Rewrite function.

2017-10-17  Nathan Sidwell  <nathan@acm.org>

        PR middle-end/82577
        * alias.c (compare_base_decls): Check HAS_DECL_ASSEMBLER_NAME_P,
        use DECL_ASSEMBLER_NAME_RAW.

        PR middle-end/82546
        * tree.c (tree_code_size): Reformat.  Punt to lang hook for unknown
        TYPE nodes.

2017-10-17  Qing Zhao <qing.zhao@oracle.com>
            Wilco Dijkstra <wilco.dijkstra@arm.com>

        * builtins.c (expand_builtin_update_setjmp_buf): Add a
        converstion to Pmode from the buf_addr.

2017-10-17  Richard Biener  <rguenther@suse.de>

        * graphite-dependences.c (scop_get_reads_and_writes): Change
        output parameters to references.

2017-10-17  Jackson Woodruff  <jackson.woodruff@arm.com>

        PR 71026/tree-optimization
        * fold-const.c (distribute_real_division): Removed.
        (fold_binary_loc): Remove calls to distribute_real_divison.

2017-10-17  Richard Biener  <rguenther@suse.de>

        * graphite-scop-detection.c
        (scop_detection::stmt_has_simple_data_refs_p): Always use
        the full nest as region.
        (try_generate_gimple_bb): Likewise.
        * sese.c (scalar_evolution_in_region): Simplify now that
        SCEV can handle instantiation in regions.
        * tree-scalar-evolution.c (instantiate_scev_name): Also instantiate
        in the non-loop part of a function if requested.

2017-10-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82563
        * graphite-isl-ast-to-gimple.c (generate_entry_out_of_ssa_copies):
        New function.
        (graphite_regenerate_ast_isl): Call it.
        * graphite-scop-detection.c (build_scops): Remove entry edge split.

2017-10-17  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/82549
        * fold-const.c (optimize_bit_field_compare, fold_truth_andor_1):
        Formatting fixes.  Instead of calling make_bit_field_ref with negative
        bitpos return 0.

2017-10-17  Olga Makhotina  <olga.makhotina@intel.com>

        * config/i386/avx512dqintrin.h (_mm_mask_reduce_sd,
        _mm_maskz_reduce_sd, _mm_mask_reduce_ss,=20
        _mm_maskz_reduce_ss): New.
        * config/i386/i386-builtin.def (__builtin_ia32_reducesd_mask,
        __builtin_ia32_reducess_mask): Ditto..
        (__builtin_ia32_reducesd, __builtin_ia32_reducess): Remove.
        * config/i386/sse.md (reduces<mode>): Renamed to ...
        (reduces<mode><mask_scalar_name>): ... this.
        (vreduce<ssescalarmodesuffix>\t{%3, %2, %1, %0|%0, %1, %2, %3}):
        Changed to ...
        (vreduce<ssescalarmodesuffix>\t{%3, %2, %1, %0<mask_scalar_operand4>|
        %0<mask_scalar_operand4>, %1, %2, %3}): ... this.

2017-10-16  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (OBJS): Add unique-ptr-tests.o.
        * selftest-run-tests.c (selftest::run_tests): Call
        selftest::unique_ptr_tests_cc_tests.
        * selftest.h (selftest::unique_ptr_tests_cc_tests): New decl.
        * unique-ptr-tests.cc: New file.

2017-10-16  Vladimir Makarov  <vmakarov@redhat.com>

        PR sanitizer/82353
        * lra.c (collect_non_operand_hard_regs): Don't ignore operator
        locations.
        * lra-lives.c (bb_killed_pseudos, bb_gen_pseudos): Move up.
        (make_hard_regno_born, make_hard_regno_dead): Update
        bb_killed_pseudos and bb_gen_pseudos for fixed regs.

2017-10-16  Jeff Law  <law@redhat.com>

        * tree-ssa-dse.c (live_bytes_read): Fix thinko.

2017-10-16  Jan Hubicka  <hubicka@ucw.cz>

        * x86-tune-costs.h (znver1_cost): Fix move cost tables.

2017-10-16  Olivier Hainque  <hainque@adacore.com>

        * gcc/config.gcc (powerpc*-*-*spe*): Pick 8548 as the default
        with_cpu if we were configured for an e500v2 target cpu name.

2017-10-16  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-cpus.in (cortex-m33): Add nodsp option.
        * doc/invoke.texi: Document +nodsp as a valid extension for
        -mcpu=cortex-m33.

2017-10-16  Martin Liska  <mliska@suse.cz>

        * sbitmap.c (bitmap_bit_in_range_p_checking): New function.
        (test_set_range): Likewise.
        (test_range_functions): Rename to ...
        (test_bit_in_range): ... this.
        (sbitmap_c_tests): Add new test.

2017-10-16  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/arm_neon.h (vdot_u32, vdotq_u32, vdot_s32, vdotq_s32):
        New.
        (vdot_lane_u32, vdot_laneq_u32, vdotq_lane_u32, vdotq_laneq_u32): New.
        (vdot_lane_s32, vdot_laneq_s32, vdotq_lane_s32, vdotq_laneq_s32): New.

2017-10-16  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-builtins.c
        (aarch64_types_quadopu_lane_qualifiers): New.
        (TYPES_QUADOPU_LANE): New.
        * config/aarch64/aarch64-simd.md (aarch64_<sur>dot<vsi2qi>): New.
        (<sur>dot_prod<vsi2qi>, aarch64_<sur>dot_lane<vsi2qi>): New.
        (aarch64_<sur>dot_laneq<vsi2qi>): New.
        * config/aarch64/aarch64-simd-builtins.def (sdot, udot): New.
        (sdot_lane, udot_lane, sdot_laneq, udot_laneq): New.
        * config/aarch64/iterators.md (sur): Add UNSPEC_SDOT, UNSPEC_UDOT.
        (Vdottype, DOTPROD): New.
        (sur): Add SDOT and UDOT.

2017-10-16  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64.h (AARCH64_FL_DOTPROD): New.
        (AARCH64_ISA_DOTPROD, TARGET_DOTPROD): New.
        * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
        Add TARGET_DOTPROD.
        * config/aarch64/aarch64-option-extensions.def (dotprod): New.
        * config/aarch64/aarch64-cores.def (cortex-a55, cortex-a75):
        Enable TARGET_DOTPROD.
        (cortex-a75.cortex-a55): Likewise.
        * doc/invoke.texi (aarch64-feature-modifiers): Document dotprod.

2017-10-16  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm-builtins.c (arm_unsigned_uternop_qualifiers): New.
        (UTERNOP_QUALIFIERS, arm_umac_lane_qualifiers, UMAC_LANE_QUALIFIERS):
        New.
        * config/arm/arm_neon_builtins.def (sdot, udot, sdot_lane, udot_lane):
        New.
        * config/arm/iterators.md (DOTPROD, VSI2QI, vsi2qi): New.
        (UNSPEC_DOT_S, UNSPEC_DOT_U, opsuffix): New.
        * config/arm/neon.md (neon_<sup>dot<vsi2qi>): New.
        (neon_<sup>dot_lane<vsi2qi>, <sup>dot_prod<vsi2qi>): New.
        * config/arm/types.md (neon_dot, neon_dot_q): New.
        * config/arm/unspecs.md (sup): Add UNSPEC_DOT_S, UNSPEC_DOT_U.

2017-10-16  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm.h (TARGET_DOTPROD): New.
        * config/arm/arm.c (arm_arch_dotprod): New.
        (arm_option_reconfigure_globals): Add arm_arch_dotprod.
        * config/arm/arm-c.c (__ARM_FEATURE_DOTPROD): New.
        * config/arm/arm-cpus.in (armv8.2-a): Enabled +dotprod.
        (feature dotprod, group dotprod, ALL_SIMD_INTERNAL): New.
        (ALL_FPU_INTERNAL): Use ALL_SIMD_INTERNAL.
        * config/arm/t-multilib (v8_2_a_simd_variants): Add dotprod.
        * doc/invoke.texi (armv8.2-a): Document dotprod

2017-10-14  Jan Hubicka  <hubicka@ucw.cz>

        * i386.c (ix86_vec_cost): New function.
        (ix86_rtx_costs): Handle vector operations better.
        * i386.h (struct processor_costs): Add sse_op, fmasd, fmass.
        * x86-tune-costs.h: Add new costs to all tables.

2017-10-14  Jan Hubicka  <hubicka@ucw.cz>

        * i386.c (ix86_rtx_costs): Make difference between x87 and SSE
        operations.
        * i386.h (struct processor_costs): Add addss, mulss, mulsd, divss,
        divsd, sqrtss and sqrtsd
        * x86-tune-costs.h: Add new entries to all costs.
        (znver1_cost): Fix to match real instruction latencies.

2017-10-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
            Michael Collison <michael.collison@arm.com>

        * compare-elim.c: Include emit-rtl.h.
        (can_merge_compare_into_arith): New function.
        (try_validate_parallel): Likewise.
        (try_merge_compare): Likewise.
        (try_eliminate_compare): Call the above when no previous clobber
        is available.
        (execute_compare_elim_after_reload): Add DF_UD_CHAIN and DF_DU_CHAIN
        dataflow problems.

2017-10-14  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/62263
        PR middle-end/82498
        * tree-ssa-phiopt.c (value_replacement): Comment fix.  Handle
        up to 2 preparation statements for ASSIGN in MIDDLE_BB.

        PR middle-end/62263
        PR middle-end/82498
        * tree-ssa-forwprop.c (simplify_rotate): Allow def_arg1[N]
        to be any operand_equal_p operands.  For & (B - 1) require
        B to be power of 2.  Recognize
        (X << (Y & (B - 1))) | (X >> ((-Y) & (B - 1))) and similar patterns.

2017-10-14  Uros Bizjak  <ubizjak@gmail.com>

        PR bootstrap/82553
        * optabs.c (expand_memory_blockage): Fix call of
        targetm.have_memory_blockage.

2017-10-14  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/82548
        * config.gcc (*-*-solaris2*, i[34567]86-*-cygwin*,
        x86_64-*-cygwin*, i[34567]86-*-mingw* | x86_64-*-mingw*): Append
        objects to extra_objs instead of overwriting it.

2017-10-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sync.md (FILD_ATOMIC/FIST_ATOMIC FP load peephole2):
        Use any_fp_register_operand as operand[3] predicate.  Simplify
        equality test for operands[2] and operands[4] memory location.
        (LDX_ATOMIC/STX_ATOMIC FP load peephole2): Ditto.
        (FILD_ATOMIC/FIST_ATOMIC FP load peephole2 with mem blockage): New.
        (LDX_ATOMIC/LDX_ATOMIC FP load peephole2 with mem blockage): Ditto.
        (FILD_ATOMIC/FIST_ATOMIC FP store peephole2): Use
        any_fp_register_operand as operand[1] predicate.  Simplify
        equality test for operands[0] and operands[3] memory location.
        (LDX_ATOMIC/STX_ATOMIC FP store peephole2): Ditto.
        (FILD_ATOMIC/FIST_ATOMIC FP store peephole2 with mem blockage): New.
        (LDX_ATOMIC/LDX_ATOMIC FP storepeephole2 with mem blockage): Ditto.

2017-10-14  Uros Bizjak  <ubizjak@gmail.com>

        * target-insns.def: Add memory_blockage.
        * optabs.c (expand_memory_blockage): New function.
        (expand_asm_memory_barrier): Rename ...
        (expand_asm_memory_blockage): ... to this.
        (expand_mem_thread_fence): Call expand_memory_blockage
        instead of expand_asm_memory_barrier.
        (expand_mem_singnal_fence): Ditto.
        (expand_atomic_load): Ditto.
        (expand_atomic_store): Ditto.
        * doc/md.texi (Standard Pattern Names For Generation):
        Document memory_blockage instruction pattern.

2017-10-13  Sebastian Perta  <sebastian.perta@renesas.com>

        * config/rl78/rl78.c (rl78_emit_libcall): New function.
        * config/rl78/rl78-protos.h (rl78_emit_libcall): New function.
        * config/rl78/rl78.md: New define_expand "adddi3".

2017-10-13  Jan Hubicka  <hubicka@ucw.cz>

        * cfghooks.c (verify_flow_info): Disable check that all probabilities
        are set correctly.

2017-10-13  Jeff Law  <law@redhat.com>

        * tree-ssa-reassoc.c (reassociate_bb): Clarify code slighly.

2017-10-13  Jakub Jelinek  <jakub@redhat.com>

        PR target/82274
        * internal-fn.c (expand_mul_overflow): If both operands have
        the same highpart of -1 or 0 and the topmost bit of lowpart
        is different, overflow is if res <= 0 rather than res < 0.

2017-10-13  Pat Haugen  <pthaugen@us.ibm.com>

        * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Remove
        TARGET_P9_VECTOR code for unaligned_load case.

2017-10-13  Jan Hubicka  <hubicka@ucw.cz>

        * cfghooks.c (verify_flow_info): Check that edge probabilities are set.

2017-10-13  Nathan Sidwell  <nathan@acm.org>

        * tree-core.h (tree_contains_struct): Make bool.
        * tree.c (tree_contains_struct): Likewise.
        * tree.h (MARK_TS_BASE): Remove do ... while (0) idiom.
        (MARK_TS_TYPED, MARK_TS_COMMON, MARK_TS_TYPE_COMMON,
        MARK_TS_TYPE_WITH_LANG_SPECIFIC, MARK_TS_DECL_MINIMAL,
        MARK_TS_DECL_COMMON, MARK_TS_DECL_WRTL, MARK_TS_DECL_WITH_VIS,
        MARK_TS_DECL_NON_COMMON): Likewise, use comma operator.

2017-10-13  Richard Biener  <rguenther@suse.de>

        * graphite-isl-ast-to-gimple.c
        (translate_isl_ast_to_gimple::get_rename_from_scev): Remove unused
        parameters and dominance check.
        (translate_isl_ast_to_gimple::graphite_copy_stmts_from_block): Adjust.
        (translate_isl_ast_to_gimple::copy_bb_and_scalar_dependences): Likewise.
        (translate_isl_ast_to_gimple::graphite_regenerate_ast_isl):
        Do not update SSA form here or do intermediate IL verification.
        * graphite.c: Include tree-ssa.h and tree-into-ssa.h.
        (graphite_initialize): Remove check on the number of loops in
        the function and inline into graphite_transform_loops.
        (graphite_finalize): Inline into graphite_transform_loops.
        (graphite_transform_loops): Perform SSA update and IL verification
        here.
        * params.def (PARAM_GRAPHITE_MIN_LOOPS_PER_FUNCTION): Remove.

2017-10-13  Richard Biener  <rguenther@suse.de>

        * graphite-isl-ast-to-gimple.c (max_mode_int_precision,
        graphite_expression_type_precision): Avoid global constructor
        by moving ...
        (translate_isl_ast_to_gimple::translate_isl_ast_to_gimple): Here.
        (translate_isl_ast_to_gimple::graphite_expr_type): Add type member.
        (translate_isl_ast_to_gimple::translate_isl_ast_node_for): Use it.
        (translate_isl_ast_to_gimple::build_iv_mapping): Likewise.
        (translate_isl_ast_to_gimple::graphite_create_new_guard): Likewise.
        * graphite-sese-to-poly.c (build_original_schedule): Return nothing.

2017-10-13  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/82499
        * config/i386/i386.h (ix86_red_zone_size): New.
        * config/i386/i386.md (push peephole2s): Replace
        "!ix86_using_red_zone ()" with "ix86_red_zone_size == 0".

2017-10-13  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (can_change_dest_mode): Reject changes in
        REGMODE_NATURAL_SIZE.

2017-10-13  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * cfgexpand.c (expand_debug_expr): Use GET_MODE_UNIT_BITSIZE.
        (expand_debug_source_expr): Likewise.
        * combine.c (combine_simplify_rtx): Likewise.
        * cse.c (fold_rtx): Likewise.
        * fwprop.c (canonicalize_address): Likewise.
        * targhooks.c (default_shift_truncation_mask): Likewise.

2017-10-13  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * optabs.c (add_equal_note): Use GET_MODE_UNIT_SIZE.
        (widened_mode): Likewise.
        (expand_unop): Likewise.
        * ree.c (transform_ifelse): Likewise.
        (merge_def_and_ext): Likewise.
        (combine_reaching_defs): Likewise.
        * simplify-rtx.c (simplify_unary_operation_1): Likewise.

2017-10-13  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * caller-save.c (replace_reg_with_saved_mem): Use byte_lowpart_offset.
        * combine.c (gen_lowpart_for_combine): Likewise.
        * dwarf2out.c (rtl_for_decl_location): Likewise.
        * final.c (alter_subreg): Likewise.
        * rtlhooks.c (gen_lowpart_general): Likewise.
        (gen_lowpart_if_possible): Likewise.

2017-10-13  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * calls.c (expand_call): Use subreg_lowpart_offset.
        * cse.c (cse_insn): Likewise.
        * regcprop.c (copy_value): Likewise.
        (copyprop_hardreg_forward_1): Likewise.

2017-10-13  Jakub Jelinek  <jakub@redhat.com>

        PR target/82524
        * config/i386/i386.md (addqi_ext_1, andqi_ext_1,
        *andqi_ext_1_cc, *<code>qi_ext_1, *xorqi_ext_1_cc): Change
        =Q constraints to +Q and into insn condition add check
        that operands[0] and operands[1] are equal.
        (*addqi_ext_2, *andqi_ext_2, *<code>qi_ext_2): Change
        =Q constraints to +Q and into insn condition add check
        that operands[0] is equal to either operands[1] or operands[2].

        PR target/82498
        * fold-const.c (fold_binary_loc) <bit_rotate>: Code cleanups,
        instead of handling MINUS_EXPR twice (once for each argument),
        canonicalize operand order and handle just once, use rtype where
        possible.  Handle (A << B) | (A >> (-B & (Z - 1))).

        PR target/82498
        * config/i386/ia32intrin.h (__rold, __rord, __rolq, __rorq): Allow
        any values of __C while still being pattern recognizable as a simple
        rotate instruction.

2017-10-13  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82451
        Revert
        2017-10-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82355
        * graphite-isl-ast-to-gimple.c (build_iv_mapping): Also build
        a mapping for the enclosing loop but avoid generating one for
        the loop tree root.
        (copy_bb_and_scalar_dependences): Remove premature codegen
        error on PHIs in blocks duplicated into multiple places.
        * graphite-scop-detection.c
        (scop_detection::stmt_has_simple_data_refs_p): For a loop not
        in the region use it as loop and nest to analyze the DR in.
        (try_generate_gimple_bb): Likewise.
        * graphite-sese-to-poly.c (extract_affine_chrec): Adjust.
        (add_loop_constraints): For blocks in a loop not in the region
        create a dimension with a single iteration.
        * sese.h (gbb_loop_at_index): Remove assert.

        * cfgloop.c (loop_preheader_edge): For the loop tree root
        return the single successor of the entry block.
        * graphite-isl-ast-to-gimple.c (graphite_regenerate_ast_isl):
        Reset the SCEV hashtable and niters.
        * graphite-scop-detection.c
        (scop_detection::graphite_can_represent_scev): Add SCOP parameter,
        assert that we only have POLYNOMIAL_CHREC that vary in loops
        contained in the region.
        (scop_detection::graphite_can_represent_expr): Adjust.
        (scop_detection::stmt_has_simple_data_refs_p): For loops
        not in the region set loop to NULL.  The nest is now the
        entry edge to the region.
        (try_generate_gimple_bb): Likewise.
        * sese.c (scalar_evolution_in_region): Adjust for
        instantiate_scev change.
        * tree-data-ref.h (graphite_find_data_references_in_stmt):
        Make nest parameter the edge into the region.
        (create_data_ref): Likewise.
        * tree-data-ref.c (dr_analyze_indices): Make nest parameter an
        entry edge into a region and adjust instantiate_scev calls.
        (create_data_ref): Likewise.
        (graphite_find_data_references_in_stmt): Likewise.
        (find_data_references_in_stmt): Pass the loop preheader edge
        from the nest argument.
        * tree-scalar-evolution.h (instantiate_scev): Make instantiate_below
        parameter the edge into the region.
        (instantiate_parameters): Use the loop preheader edge as entry.
        * tree-scalar-evolution.c (analyze_scalar_evolution): Handle
        NULL loop.
        (get_instantiated_value_entry): Make instantiate_below parameter
        the edge into the region.
        (instantiate_scev_name): Likewise.  Adjust dominance checks,
        when we cannot use loop-based instantiation instantiate by
        walking use-def chains.
        (instantiate_scev_poly): Adjust.
        (instantiate_scev_binary): Likewise.
        (instantiate_scev_convert): Likewise.
        (instantiate_scev_not): Likewise.
        (instantiate_array_ref): Remove.
        (instantiate_scev_3): Likewise.
        (instantiate_scev_2): Likewise.
        (instantiate_scev_1): Likewise.
        (instantiate_scev_r): Do not blindly handle N-operand trees.
        Do not instantiate array-refs.  Handle all constants and invariants.
        (instantiate_scev): Make instantiate_below parameter
        the edge into the region.
        (resolve_mixers): Use the loop preheader edge for the region
        parameter to instantiate_scev_r.
        * tree-ssa-loop-prefetch.c (determine_loop_nest_reuse): Adjust.

2017-10-13  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82525
        * graphite-isl-ast-to-gimple.c
        (translate_isl_ast_to_gimple::widest_int_from_isl_expr_int): Split
        out from ...
        (translate_isl_ast_to_gimple::gcc_expression_from_isl_expr_int): Here.
        Fail code generation when we cannot represent the isl integer.
        (binary_op_to_tree): Elide modulo operations that are no-ops
        in the type we code generate.  Remove now superfluous code
        generation errors.

2017-10-13  Richard Biener  <rguenther@suse.de>

        * graphite-scop-detection.c (loop_ivs_can_be_represented): Remove.
        (scop_detection::harmful_loop_in_region): Remove premature
        IV type restriction.
        (scop_detection::graphite_can_represent_scev): We can handle
        pointer IVs just fine.

2017-10-13  Alan Modra  <amodra@gmail.com>

        * doc/extend.texi (Extended Asm <Clobbers>): Rename to
        "Clobbers and Scratch Registers".  Add paragraph on
        alternative to clobbers for scratch registers and OpenBLAS
        example.

2017-10-13  Alan Modra  <amodra@gmail.com>

        * doc/extend.texi (Clobbers): Correct vax example.  Delete old
        example of a memory input for a string of known length.  Move
        commentary out of table.  Add a number of new examples
        covering array memory inputs.

2017-10-12  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/82493
        * sbitmap.c (bitmap_bit_in_range_p): Fix the implementation.
        (test_range_functions): New function.
        (sbitmap_c_tests): Likewise.
        * selftest-run-tests.c (selftest::run_tests): Run new tests.
        * selftest.h (sbitmap_c_tests): New function.

        * tree-ssa-dse.c (live_bytes_read): Fix thinko.

2017-10-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/amo.h: Fix spacing issue.

2017-10-12  Jakub Jelinek  <jakub@redhat.com>

        PR target/82498
        * config/i386/i386.md (*ashl<mode>3_mask_1,
        *<shift_insn><mode>3_mask_1, *<rotate_insn><mode>3_mask_1,
        *<btsc><mode>_mask_1, *btr<mode>_mask_1): New define_insn_and_split
        patterns.

2017-10-12  Jan Hubicka  <hubicka@ucw.cz>

        * profile-count.h (safe_scale_64bit): Fix GCC4.x path.
        (profile_probability): Set max_probability
        to (uint32_t) 1 << (n_bits - 2) and update accessors to avoid overlfows
        in temporaries.
        * profile-count.c (profile_probability::differs_from_p): Do not
        rely on max_probaiblity == 10000

2017-10-12  Jeff Law  <law@redhat.com>

        * tree-ssa-dse.c (valid_ao_ref_for_dse): Reject ao_refs with
        negative offsets.

2017-10-12  Martin Sebor  <msebor@redhat.com>

        PR other/82301
        PR c/82435
        * cgraphunit.c (maybe_diag_incompatible_alias): New function.
        (handle_alias_pairs): Call it.
        * common.opt (-Wattribute-alias): New option.
        * doc/extend.texi (ifunc attribute): Discuss C++ specifics.
        * doc/invoke.texi (-Wattribute-alias): Document.

2017-10-12  Vladimir Makarov  <vmakarov@redhat.com>

        Revert
        2017-10-11  Vladimir Makarov  <vmakarov@redhat.com>
        PR sanitizer/82353
        * lra.c (collect_non_operand_hard_regs): Don't ignore operator
        locations.
        * lra-lives.c (bb_killed_pseudos, bb_gen_pseudos): Move up.
        (make_hard_regno_born, make_hard_regno_dead): Update
        bb_killed_pseudos and bb_gen_pseudos.

2017-10-12  Jan Hubicka  <hubicka@ucw.cz>

        * config/i386/x86-tune-sched.c (ix86_adjust_cost): Fix Zen support.

2017-10-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (alpha_split_conditional_move):
        Use std::swap instead of manually swapping.
        (alpha_stdarg_optimize_hook): Ditto.
        (alpha_canonicalize_comparison): Ditto.

2017-10-12  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (struct builtin_info): New struct.
        (struct partition): Refactor fields into struct builtin_info.
        (partition_free): Free struct builtin_info.
        (build_size_arg_loc, build_addr_arg_loc): Delete.
        (generate_memset_builtin, generate_memcpy_builtin): Get memory range
        information from struct builtin_info.
        (find_single_drs): New function refactored from classify_partition.
        Also moved builtin validity checks to this function.
        (compute_access_range, alloc_builtin): New functions.
        (classify_builtin_st, classify_builtin_ldst): New functions.
        (classify_partition): Refactor code into functions find_single_drs,
        classify_builtin_st and classify_builtin_ldst.
        (distribute_loop): Don't do runtime alias check when distributing
        loop nest.
        (find_seed_stmts_for_distribution): New function.
        (pass_loop_distribution::execute): Refactor code finding seed
        stmts into above function.  Support distribution for the innermost
        two-level loop nest.  Adjust dump information.

2017-10-12  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c: Adjust the general comment.
        (NUM_PARTITION_THRESHOLD): New macro.
        (ssa_name_has_uses_outside_loop_p): Support loop nest distribution.
        (classify_partition): Skip builtin pattern of loop nest's inner loop.
        (merge_dep_scc_partitions): New parameter ignore_alias_p and use it
        in call to build_partition_graph.
        (finalize_partitions): New parameter.  Make loop distribution more
        conservative by fusing more partitions.
        (distribute_loop): Don't do runtime alias check in case of loop nest
        distribution.
        (find_seed_stmts_for_distribution): New function.
        (prepare_perfect_loop_nest): New function.
        (pass_loop_distribution::execute): Refactor code finding seed stmts
        and loop nest into above functions.  Support loop nest distribution.
        Adjust dump information accordingly.

2017-10-12  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (break_alias_scc_partitions): Add comment
        and set PTYPE_SEQUENTIAL for merged partition.

2017-10-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69728
        Revert
        2017-09-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69728
        * graphite-sese-to-poly.c (schedule_error): New global.
        (add_loop_schedule): Handle empty domain by failing the
        schedule.
        (build_original_schedule): Handle schedule_error.

        * graphite-sese-to-poly.c (add_loop_schedule): Handle empty
        domain by returning an unchanged schedule.

2017-10-12  Jakub Jelinek  <jakub@redhat.com>

        * genrecog.c (validate_pattern): For VEC_SELECT verify that
        CONST_INT selectors are 0 to GET_MODE_NUNITS (imode) - 1.

2017-10-12  Aldy Hernandez  <aldyh@redhat.com>

        * Makefile.in (TAGS): Merge all the *.def files into one pattern.
        Handle params.def.

2017-10-12  Jakub Jelinek  <jakub@redhat.com>

        PR c++/82159
        * expr.c (store_field): Don't optimize away bitsize == 0 store
        from CALL_EXPR with addressable return type.

2017-10-11  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.h (TARGET_ISEL64): Delete.
        * config/rs6000/rs6000.md (sel): Delete mode attribute.
        (mov<mode>cc, isel_signed_<mode>, isel_unsigned_<mode>,
        *isel_reversed_signed_<mode>, *isel_reversed_unsigned_<mode>): Use
        TARGET_ISEL instead of TARGET_ISEL<sel>.

2017-10-11  David Edelsohn  <dje.gcc@gmail.com>

        * config/rs6000/rs6000.c
        (rs6000_xcoff_asm_output_aligned_decl_common): Test for NULL decl.

2017-10-11  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/predicates.md (zero_constant, all_ones_constant):
        Move up in file.
        (reg_or_cint_operand): Fix comment.
        (reg_or_zero_operand): New predicate.
        * config/rs6000/rs6000-protos.h (output_isel): Delete.
        * config/rs6000/rs6000.c (output_isel): Delete.
        * config/rs6000/rs6000.md (isel_signed_<mode>): Use reg_or_zero_operand
        instead of reg_or_cint_operand.  Output instruction directly (not via
        output_isel).
        (isel_unsigned_<mode>): Ditto.
        (*isel_reversed_signed_<mode>): Use reg_or_zero_operand instead of
        gpc_reg_operand.  Add an instruction alternative for this.  Output
        instruction directly.
        (*isel_reversed_unsigned_<mode>): Ditto.

2017-10-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_canonicalize_comparison): New function.
        (TARGET_CANONICALIZE_COMPARISON): Define.

2017-10-11  Qing Zhao  <qing.zhao@oracle.com>

        PR target/81422
        * config/aarch64/aarch64.c (aarch64_load_symref_appropriately):
        Check whether the dest is REG before adding REG_EQUIV note.

2017-10-11  Vladimir Makarov  <vmakarov@redhat.com>

        PR sanitizer/82353
        * lra.c (collect_non_operand_hard_regs): Don't ignore operator
        locations.
        * lra-lives.c (bb_killed_pseudos, bb_gen_pseudos): Move up.
        (make_hard_regno_born, make_hard_regno_dead): Update
        bb_killed_pseudos and bb_gen_pseudos.

2017-10-11  Nathan Sidwell  <nathan@acm.org>

        * incpath.h (enum incpath_kind): Name enum, prefix values.
        (add_path, add_cpp_dir_path, get_added_cpp_dirs): Use incpath_kind.
        * incpath.c (heads, tails): Use INC_MAX.
        (add_env_var_paths, add_standard_paths): Use incpath_kind.
        (merge_include_chains, split_quote_chain,
        register_include_chains): Update incpath_kind names.
        (add_cpp_dir_path, add_path, get_added_cpp_dirs): Use incpath_kind.
        * config/darwin-c.c (add_system_framework_path): Update incpath_kind
        names.
        (add_framework_path, darwin_register_objc_includes): Likewise.
        * config/vms/vms-c.c (vms_c_register_includes): Likewise.

2017-10-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*cmp<X87MODEF:mode>_<SWI24:mode>_i387):
        Do not use float_operator operator predicate.
        (*cmp<X87MODEF:mode>_<SWI24:mode>_cc_i387): Ditto.
        * config/i386/predicates.md (float_operator): Remove predicate.

2017-10-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*jcc<mode>_0_i387): Remove insn pattern.
        (*jccxf_i387): Ditto.
        (*jcc<mode>_i387): Ditto.
        (*jccu<mode>_i387): Ditto.
        (*jcc<X87MODEF:mode>_<SWI24:mode>_i387): Ditto.
        (*jcc_*_i387 splitters): Remove.
        * config/i386/i386-protos.h (ix86_split_fp_branch): Remove prototype.
        * config/i386/i386.c (ix86_split_fp_branch): Remove.
        * config/i386/predicates.md (ix86_swapped_fp_comparison_operator):
        Remove predicate.

2017-10-11  Jan Hubicka  <hubicka@ucw.cz>

        * profile-count.h (slow_safe_scale_64bit): New function.
        (safe_scale_64bit): New inline.
        (profile_count::max_safe_multiplier): Remove; use safe_scale_64bit.
        * profile-count.c: Include wide-int.h
        (slow_safe_scale_64bit): New.

2017-10-11  Nathan Sidwell  <nathan@acm.org>

        * tree.h (DECL_ASSEMBLER_NAME_SET_P): Don't check
        HAS_DECL_ASSEMBLER_NAME_P.
        * gimple-expr.c (gimple_decl_printable_name: Check
        HAS_DECL_ASSEMBLER_NAME_P too.
        * ipa-utils.h (type_in_anonymous_namespace_p): Check
        DECL_ASSEMBLER_NAME_SET_P of TYPE_NAME.
        (odr_type_p): No need to assert TYPE_NAME is a TYPE_DECL.
        * passes.c (rest_of_decl_compilation): Check
        HAS_DECL_ASSEMBLER_NAME_P too.
        * recog.c (verify_changes): Likewise.
        * tree-pretty-print.c (dump_decl_name): Likewise.
        * tree-ssa-structalias.c (alias_get_name): Likewise.  Reimplement.

        * tree.h (DECL_ASSEMBLER_NAME_RAW): New.
        (SET_DECL_ASSEMBLER_NAME): Use it.
        (DECL_ASSEMBLER_NAME_SET_P): Likewise.
        (COPY_DECL_ASSEMBLER_NAME): Likewise.
        * tree.c (decl_assembler_name): Use DECL_ASSEMBLER_NAME_RAW.

2017-10-11  Jan Hubicka  <hubicka@ucw.cz>

        * config.gcc (i386, x86_64): Add extra objects.
        * config/i386/i386-protos.h (ix86_rip_relative_addr_p): Declare.
        (ix86_min_insn_size): Declare.
        (ix86_issue_rate): Declare.
        (ix86_adjust_cost): Declare.
        (ia32_multipass_dfa_lookahead): Declare.
        (ix86_macro_fusion_p): Declare.
        (ix86_macro_fusion_pair_p): Declare.
        (ix86_bd_has_dispatch): Declare.
        (ix86_bd_do_dispatch): Declare.
        (ix86_core2i7_init_hooks): Declare.
        (ix86_atom_sched_reorder): Declare.
        * config/i386/i386.c Move all CPU cost tables to x86-tune-costs.h.
        (COSTS_N_BYTES): Move to x86-tune-costs.h.
        (DUMMY_STRINGOP_ALGS):Move to x86-tune-costs.h.
        (rip_relative_addr_p): Rename to ...
        (ix86_rip_relative_addr_p): ... this one; export.
        (memory_address_length): Update.
        (ix86_issue_rate): Move to x86-tune-sched.c.
        (ix86_flags_dependent): Move to x86-tune-sched.c.
        (ix86_agi_dependent): Move to x86-tune-sched.c.
        (exact_dependency_1): Move to x86-tune-sched.c.
        (exact_store_load_dependency): Move to x86-tune-sched.c.
        (ix86_adjust_cost): Move to x86-tune-sched.c.
        (ia32_multipass_dfa_lookahead): Move to x86-tune-sched.c.
        (ix86_macro_fusion_p): Move to x86-tune-sched.c.
        (ix86_macro_fusion_pair_p): Move to x86-tune-sched.c.
        (do_reorder_for_imul): Move to x86-tune-sched-atom.c.
        (swap_top_of_ready_list): Move to x86-tune-sched-atom.c.
        (ix86_sched_reorder): Move to x86-tune-sched-atom.c.
        (core2i7_first_cycle_multipass_init): Move to x86-tune-sched-core.c.
        (core2i7_dfa_post_advance_cycle): Move to x86-tune-sched-core.c.
        (min_insn_size): Rename to ...
        (ix86_min_insn_size): ... this one; export.
        (core2i7_first_cycle_multipass_begin): Move to x86-tune-sched-core.c.
        (core2i7_first_cycle_multipass_issue): Move to x86-tune-sched-core.c.
        (core2i7_first_cycle_multipass_backtrack): Move to
        x86-tune-sched-core.c.
        (core2i7_first_cycle_multipass_end): Move to x86-tune-sched-core.c.
        (core2i7_first_cycle_multipass_fini): Move to x86-tune-sched-core.c.
        (ix86_sched_init_global): Break up logic to ix86_core2i7_init_hooks.
        (ix86_avoid_jump_mispredicts): Update.
        (TARGET_SCHED_DISPATCH): Move to ix86-tune-sched-bd.c.
        (TARGET_SCHED_DISPATCH_DO): Move to ix86-tune-sched-bd.c.
        (TARGET_SCHED_REORDER): Move to ix86-tune-sched-bd.c.
        (DISPATCH_WINDOW_SIZE): Move to ix86-tune-sched-bd.c.
        (MAX_DISPATCH_WINDOWS): Move to ix86-tune-sched-bd.c.
        (MAX_INSN): Move to ix86-tune-sched-bd.c.
        (MAX_IMM): Move to ix86-tune-sched-bd.c.
        (MAX_IMM_SIZE): Move to ix86-tune-sched-bd.c.
        (MAX_IMM_32): Move to ix86-tune-sched-bd.c.
        (MAX_IMM_64): Move to ix86-tune-sched-bd.c.
        (MAX_LOAD): Move to ix86-tune-sched-bd.c.
        (MAX_STORE): Move to ix86-tune-sched-bd.c.
        (BIG): Move to ix86-tune-sched-bd.c.
        (enum dispatch_group): Move to ix86-tune-sched-bd.c.
        (enum insn_path): Move to ix86-tune-sched-bd.c.
        (get_mem_group): Move to ix86-tune-sched-bd.c.
        (is_cmp): Move to ix86-tune-sched-bd.c.
        (dispatch_violation): Move to ix86-tune-sched-bd.c.
        (is_branch): Move to ix86-tune-sched-bd.c.
        (is_prefetch): Move to ix86-tune-sched-bd.c.
        (init_window): Move to ix86-tune-sched-bd.c.
        (allocate_window): Move to ix86-tune-sched-bd.c.
        (init_dispatch_sched): Move to ix86-tune-sched-bd.c.
        (is_end_basic_block): Move to ix86-tune-sched-bd.c.
        (process_end_window): Move to ix86-tune-sched-bd.c.
        (allocate_next_window): Move to ix86-tune-sched-bd.c.
        (find_constant): Move to ix86-tune-sched-bd.c.
        (get_num_immediates): Move to ix86-tune-sched-bd.c.
        (has_immediate): Move to ix86-tune-sched-bd.c.
        (get_insn_path): Move to ix86-tune-sched-bd.c.
        (get_insn_group): Move to ix86-tune-sched-bd.c.
        (count_num_restricted): Move to ix86-tune-sched-bd.c.
        (fits_dispatch_window): Move to ix86-tune-sched-bd.c.
        (add_insn_window): Move to ix86-tune-sched-bd.c.
        (add_to_dispatch_window): Move to ix86-tune-sched-bd.c.
        (debug_dispatch_window_file): Move to ix86-tune-sched-bd.c.
        (debug_dispatch_window): Move to ix86-tune-sched-bd.c.
        (debug_insn_dispatch_info_file): Move to ix86-tune-sched-bd.c.
        (debug_ready_dispatch): Move to ix86-tune-sched-bd.c.
        (do_dispatch): Move to ix86-tune-sched-bd.c.
        (has_dispatch): Move to ix86-tune-sched-bd.c.
        * config/i386/t-i386: Add new object files.
        * config/i386/x86-tune-costs.h: New file.
        * config/i386/x86-tune-sched-atom.c: New file.
        * config/i386/x86-tune-sched-bd.c: New file.
        * config/i386/x86-tune-sched-core.c: New file.
        * config/i386/x86-tune-sched.c: New file.

2017-10-11  Liu Hao  <lh_mouse@126.com>

        * pretty-print.c [_WIN32] (colorize_init): Remove.  Use
        the generic version below instead.
        (should_colorize): Recognize Windows consoles as terminals
        for MinGW targets.
        * pretty-print.c [__MINGW32__] (write_all): New function.
        [__MINGW32__] (find_esc_head): Likewise.
        [__MINGW32__] (find_esc_terminator): Likewise.
        [__MINGW32__] (eat_esc_sequence): Likewise.
        [__MINGW32__] (mingw_ansi_fputs): New function that handles
        ANSI escape codes.
        (pp_write_text_to_stream): Use mingw_ansi_fputs instead of fputs
        for MinGW targets.

2017-10-11  Richard Biener  <rguenther@suse.de>

        * tree-ssa-loop-niter.c (infer_loop_bounds_from_pointer_arith):
        Properly call analyze_scalar_evolution with the loop of the stmt.

2017-10-11  Richard Biener  <rguenther@suse.de>

        * tree.def (POLYNOMIAL_CHREC): Remove CHREC_VARIABLE tree operand.
        * tree-core.h (tree_base): Add chrec_var union member.
        * tree.h (CHREC_VAR): Remove.
        (CHREC_LEFT, CHREC_RIGHT, CHREC_VARIABLE): Adjust.
        * tree-chrec.h (build_polynomial_chrec): Adjust.
        * tree-chrec.c (reset_evolution_in_loop): Use build_polynomial_chrec.
        * tree-pretty-print.c (dump_generic_node): Use CHREC_VARIABLE.

2017-10-11  Marc Glisse  <marc.glisse@inria.fr>

        * fold-const.c (fold_binary_loc) [X +- Y CMP X]: Move ...
        * match.pd: ... here.
        ((T) X == (T) Y): Relax condition.

2017-10-11  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/82472
        * tree-loop-distribution.c (sort_partitions_by_post_order): Refine
        comment.
        (break_alias_scc_partitions): Update postorder number.

2017-10-11  Martin Liska  <mliska@suse.cz>

        PR sanitizer/82490
        * opts.c (parse_no_sanitize_attribute): Do not use error_value
        variable.
        * opts.h (parse_no_sanitize_attribute): Remove last argument.

2017-10-11  Martin Liska  <mliska@suse.cz>

        * print-rtl.c (print_insn): Move declaration of idbuf
        to same scope as name.

2017-10-11  Martin Liska  <mliska@suse.cz>

        Revert r253637:

        PR sanitizer/82484
        * sanopt.c (sanitize_rewrite_addressable_params): Do not handle
        volatile arguments.

2017-10-11  Martin Liska  <mliska@suse.cz>

        PR sanitizer/82484
        * sanopt.c (sanitize_rewrite_addressable_params): Do not handle
        volatile arguments.

2017-10-11  Adhemerval Zanella  <adhemerval.zanella@linaro.org>

        * config.gcc (default_gnu_indirect_function): Default to yes for
        arm*-*-linux* with glibc.

2017-10-11  Richard Biener  <rguenther@suse.de>

        * tree-scalar-evolution.c (get_scalar_evolution): Handle
        default-defs and types we do not want to analyze.
        (interpret_loop_phi): Replace unreachable code with an assert.
        (compute_scalar_evolution_in_loop): Remove and inline ...
        (analyze_scalar_evolution_1): ... here, replacing condition with
        what makes the intent clearer.  Remove handling of cases
        get_scalar_evolution now handles.

2017-10-10  Jim Wilson  <wilson@tuliptree.org>

        PR rtl-optimization/81434
        * haifa-sched.c (prune_ready_list): Init min_cost_group to 0.  Update
        comment for main loop.  In sched_group_found if, also add checks for
        pass and min_cost_group.

2017-10-10  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (TARGET_INSN_COST): New.
        (rs6000_insn_cost): New function.
        * config/rs6000/rs6000.md (cost): New attribute.

2017-10-10  Jakub Jelinek  <jakub@redhat.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        PR target/79565
        PR target/82483
        * config/i386/i386.c (ix86_init_mmx_sse_builtins): Add
        OPTION_MASK_ISA_MMX for __builtin_ia32_maskmovq,
        __builtin_ia32_vec_ext_v4hi and __builtin_ia32_vec_set_v4hi.
        (ix86_expand_builtin): Treat OPTION_MASK_ISA_MMX similarly
        to OPTION_MASK_ISA_AVX512VL - builtins that have both
        OPTION_MASK_ISA_MMX and some other bit set require both
        mmx and the ISAs without the mmx bit.
        * config/i386/i386-builtin.def (__builtin_ia32_cvtps2pi,
        __builtin_ia32_cvttps2pi, __builtin_ia32_cvtpi2ps,
        __builtin_ia32_pavgb, __builtin_ia32_pavgw, __builtin_ia32_pmulhuw,
        __builtin_ia32_pmaxub, __builtin_ia32_pmaxsw, __builtin_ia32_pminub,
        __builtin_ia32_pminsw, __builtin_ia32_psadbw, __builtin_ia32_pmovmskb,
        __builtin_ia32_pshufw, __builtin_ia32_cvtpd2pi,
        __builtin_ia32_cvttpd2pi, __builtin_ia32_cvtpi2pd,
        __builtin_ia32_pmuludq, __builtin_ia32_pabsb, __builtin_ia32_pabsw,
        __builtin_ia32_pabsd, __builtin_ia32_phaddw, __builtin_ia32_phaddd,
        __builtin_ia32_phaddsw, __builtin_ia32_phsubw, __builtin_ia32_phsubd,
        __builtin_ia32_phsubsw, __builtin_ia32_pmaddubsw,
        __builtin_ia32_pmulhrsw, __builtin_ia32_pshufb, __builtin_ia32_psignb,
        __builtin_ia32_psignw, __builtin_ia32_psignd, __builtin_ia32_movntq,
        __builtin_ia32_paddq, __builtin_ia32_psubq, __builtin_ia32_palignr):
        Add OPTION_MASK_ISA_MMX.

2017-10-10  Andreas Tobler  <andreast@gcc.gnu.org>

        * config.gcc (armv7*-*-freebsd*): New target.
        (armv6*-*-freebsd*): Remove obsolete TARGET_FREEBSD_ARMv6 define.

2017-10-10  Jan Hubicka  <hubicka@ucw.cz>

        * x86-tune.def (X86_TUNE_AVOID_FALSE_DEP_FOR_BMI,
        X86_TUNE_ADJUST_UNROLL, X86_TUNE_ONE_IF_CONV_INSN): Move to right
        spot in the file.

2017-10-10  Richard Sandiford  <richard.sandiford@linaro.org>

        * wide-int.h (wide_int_ref_storage): Make host_dependent_precision
        a template parameter.
        (WIDE_INT_REF_FOR): Update accordingly.
        * tree.h (wi::int_traits <const_tree>): Delete.
        (wi::tree_to_widest_ref, wi::tree_to_offset_ref): New typedefs.
        (wi::to_widest, wi::to_offset): Use them.  Expand commentary.
        (wi::tree_to_wide_ref): New typedef.
        (wi::to_wide): New function.
        * calls.c (get_size_range): Use wi::to_wide when operating on
        trees as wide_ints.
        * cgraph.c (cgraph_node::create_thunk): Likewise.
        * config/i386/i386.c (ix86_data_alignment): Likewise.
        (ix86_local_alignment): Likewise.
        * dbxout.c (stabstr_O): Likewise.
        * dwarf2out.c (add_scalar_info, gen_enumeration_type_die): Likewise.
        * expr.c (const_vector_from_tree): Likewise.
        * fold-const-call.c (host_size_t_cst_p, fold_const_call_1): Likewise.
        * fold-const.c (may_negate_without_overflow_p, negate_expr_p)
        (fold_negate_expr_1, int_const_binop_1, const_binop)
        (fold_convert_const_int_from_real, optimize_bit_field_compare)
        (all_ones_mask_p, sign_bit_p, unextend, extract_muldiv_1)
        (fold_div_compare, fold_single_bit_test, fold_plusminus_mult_expr)
        (pointer_may_wrap_p, expr_not_equal_to, fold_binary_loc)
        (fold_ternary_loc, multiple_of_p, fold_negate_const, fold_abs_const)
        (fold_not_const, round_up_loc): Likewise.
        * gimple-fold.c (gimple_fold_indirect_ref): Likewise.
        * gimple-ssa-warn-alloca.c (alloca_call_type_by_arg): Likewise.
        (alloca_call_type): Likewise.
        * gimple.c (preprocess_case_label_vec_for_gimple): Likewise.
        * godump.c (go_output_typedef): Likewise.
        * graphite-sese-to-poly.c (tree_int_to_gmp): Likewise.
        * internal-fn.c (get_min_precision): Likewise.
        * ipa-cp.c (ipcp_store_vr_results): Likewise.
        * ipa-polymorphic-call.c
        (ipa_polymorphic_call_context::ipa_polymorphic_call_context): Likewise.
        * ipa-prop.c (ipa_print_node_jump_functions_for_edge): Likewise.
        (ipa_modify_call_arguments): Likewise.
        * match.pd: Likewise.
        * omp-low.c (scan_omp_1_op, lower_omp_ordered_clauses): Likewise.
        * print-tree.c (print_node_brief, print_node): Likewise.
        * stmt.c (expand_case): Likewise.
        * stor-layout.c (layout_type): Likewise.
        * tree-affine.c (tree_to_aff_combination): Likewise.
        * tree-cfg.c (group_case_labels_stmt): Likewise.
        * tree-data-ref.c (dr_analyze_indices): Likewise.
        (prune_runtime_alias_test_list): Likewise.
        * tree-dump.c (dequeue_and_dump): Likewise.
        * tree-inline.c (remap_gimple_op_r, copy_tree_body_r): Likewise.
        * tree-predcom.c (is_inv_store_elimination_chain): Likewise.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        * tree-scalar-evolution.c (iv_can_overflow_p): Likewise.
        (simple_iv_with_niters): Likewise.
        * tree-ssa-address.c (addr_for_mem_ref): Likewise.
        * tree-ssa-ccp.c (ccp_finalize, evaluate_stmt): Likewise.
        * tree-ssa-loop-ivopts.c (constant_multiple_of): Likewise.
        * tree-ssa-loop-niter.c (split_to_var_and_offset)
        (refine_value_range_using_guard, number_of_iterations_ne_max)
        (number_of_iterations_lt_to_ne, number_of_iterations_lt)
        (get_cst_init_from_scev, record_nonwrapping_iv)
        (scev_var_range_cant_overflow): Likewise.
        * tree-ssa-phiopt.c (minmax_replacement): Likewise.
        * tree-ssa-pre.c (compute_avail): Likewise.
        * tree-ssa-sccvn.c (vn_reference_fold_indirect): Likewise.
        (vn_reference_maybe_forwprop_address, valueized_wider_op): Likewise.
        * tree-ssa-structalias.c (get_constraint_for_ptr_offset): Likewise.
        * tree-ssa-uninit.c (is_pred_expr_subset_of): Likewise.
        * tree-ssanames.c (set_nonzero_bits, get_nonzero_bits): Likewise.
        * tree-switch-conversion.c (collect_switch_conv_info, array_value_type)
        (dump_case_nodes, try_switch_expansion): Likewise.
        * tree-vect-loop-manip.c (vect_gen_vector_loop_niters): Likewise.
        (vect_do_peeling): Likewise.
        * tree-vect-patterns.c (vect_recog_bool_pattern): Likewise.
        * tree-vect-stmts.c (vectorizable_load): Likewise.
        * tree-vrp.c (compare_values_warnv, vrp_int_const_binop): Likewise.
        (zero_nonzero_bits_from_vr, ranges_from_anti_range): Likewise.
        (extract_range_from_binary_expr_1, adjust_range_with_scev): Likewise.
        (overflow_comparison_p_1, register_edge_assert_for_2): Likewise.
        (is_masked_range_test, find_switch_asserts, maybe_set_nonzero_bits)
        (vrp_evaluate_conditional_warnv_with_ops, intersect_ranges): Likewise.
        (range_fits_type_p, two_valued_val_range_p, vrp_finalize): Likewise.
        (evrp_dom_walker::before_dom_children): Likewise.
        * tree.c (cache_integer_cst, real_value_from_int_cst, integer_zerop)
        (integer_all_onesp, integer_pow2p, integer_nonzerop, tree_log2)
        (tree_floor_log2, tree_ctz, mem_ref_offset, tree_int_cst_sign_bit)
        (tree_int_cst_sgn, get_unwidened, int_fits_type_p): Likewise.
        (get_type_static_bounds, num_ending_zeros, drop_tree_overflow)
        (get_range_pos_neg): Likewise.
        * ubsan.c (ubsan_expand_ptr_ifn): Likewise.
        * config/darwin.c (darwin_mergeable_constant_section): Likewise.
        * config/aarch64/aarch64.c (aapcs_vfp_sub_candidate): Likewise.
        * config/arm/arm.c (aapcs_vfp_sub_candidate): Likewise.
        * config/avr/avr.c (avr_fold_builtin): Likewise.
        * config/bfin/bfin.c (bfin_local_alignment): Likewise.
        * config/msp430/msp430.c (msp430_attr): Likewise.
        * config/nds32/nds32.c (nds32_insert_attributes): Likewise.
        * config/powerpcspe/powerpcspe-c.c
        (altivec_resolve_overloaded_builtin): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_aggregate_candidate)
        (rs6000_expand_ternop_builtin): Likewise.
        * config/rs6000/rs6000-c.c
        (altivec_resolve_overloaded_builtin): Likewise.
        * config/rs6000/rs6000.c (rs6000_aggregate_candidate): Likewise.
        (rs6000_expand_ternop_builtin): Likewise.
        * config/s390/s390.c (s390_handle_hotpatch_attribute): Likewise.

2017-10-10  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop-manip.c (rename_variables_in_bb): Rename PHI nodes
        when copying loop nest with only one inner loop.

2017-10-10  Richard Biener  <rguenther@suse.de>

        * tree-cfgcleanup.c (cleanup_tree_cfg_noloop): Avoid compacting
        blocks if SCEV is active.
        * tree-scalar-evolution.c (analyze_scalar_evolution_1): Remove
        dead code.
        (analyze_scalar_evolution): Handle cached evolutions the obvious way.
        (scev_initialize): Assert we are not yet initialized.

2017-10-10  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (generate_loops_for_partition): Remove
        inner loop's exit stmt by making it always exit the loop, otherwise
        we would generate an infinite empty loop.

2017-10-10  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop-manip.c (slpeel_tree_duplicate_loop_to_edge_cfg): Skip
        renaming variables in new preheader if it's deleted.

2017-10-10  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (struct partition): Remove unused field
        loops of the structure.
        (partition_alloc, partition_free): Ditto.
        (build_rdg_partition_for_vertex): Ditto.

2017-10-09  Jeff Law  <law@redhat.com>

        * targhooks.c (default_stack_clash_protection_final_dynamic_probe): Fix
        return type to match prototype and documentation.

2010-10-09  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (processor_costs): Move to ...
        * config/rs6000/rs6000.h: ... here.
        (rs6000_cost): Declare.

2017-10-09  Eric Botcazou  <ebotcazou@adacore.com>

        * except.c (setjmp_fn): New global variable.
        (init_eh): Initialize it if DONT_USE_BUILTIN_SETJMP is defined.
        (sjlj_emit_function_enter): Call it instead of BUILTIN_SETJMP
        if DONT_USE_BUILTIN_SETJMP is defined.

2017-10-09  Segher Boessenkool  <segher@kernel.crashing.org>

        * target.def (insn_cost): New hook.
        * doc/tm.texi.in (TARGET_INSN_COST): New hook.
        * doc/tm.texi: Regenerate.
        * rtlanal.c (insn_cost): Use the new hook.

2017-10-09  Segher Boessenkool  <segher@kernel.crashing.org>

        * combine.c (combine_validate_cost): Compute the new insn_cost,
        not just pattern_cost.
        (try_combine): Adjust comment.

2017-10-09  Segher Boessenkool  <segher@kernel.crashing.org>

        * cfgrtl.c (rtl_account_profile_record): Replace insn_rtx_cost with
        insn_cost.
        * combine.c (uid_insn_cost): Adjust comment.
        (combine_validate_cost): Adjust comment.  Use pattern_cost instead
        of insn_rtx_cost
        (combine_instructions): Use insn_cost instead of insn_rtx_cost.
        * dse.c (find_shift_sequence): Ditto.
        * ifcvt.c (cheap_bb_rtx_cost_p): Ditto.
        (bb_valid_for_noce_process_p): Use pattern_cost.
        * rtl.h (insn_rtx_cost): Delete.
        (pattern_cost): New prototype.
        (insn_cost): New prototype.
        * rtlanal.c (insn_rtx_cost): Rename to...
        (pattern_cost): ... this.
        (insn_cost): New.

2017-10-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*jcc_2): Remove insn pattern.
        (*jcc<mode>_0_r_i387): Ditto.
        (*jccxf_r_i387): Ditto.
        (*jcc<mode>_r_i387): Ditto.
        (*jccu<mode>_r_i387): Ditto.
        (*jcc<X87MODEF:mode>_<SWI24:mode>_r_i387): Ditto.
        (*jcc): Rename from *jcc_1.

2017-10-09  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000-p8swap.c (rs6000_analyze_swaps): Process
        deferred rescans after the lvx/stvx recombination pre-pass.

2017-10-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/amo.h: New include file to provide ISA 3.0 atomic
        memory operation instruction support.
        * config.gcc (powerpc*-*-*): Include amo.h as an extra header.
        (rs6000-ibm-aix[789]*): Likewise.
        * doc/extend.texi (PowerPC Atomic Memory Operation Functions):
        Document new functions.

2017-10-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82397
        * tree-data-ref.c (data_ref_compare_tree): Make sure to return
        equality only for semantically equal trees.

2017-10-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82449
        * sese.c (scev_analyzable_p): Check whether the SCEV is linear.
        * tree-chrec.h (evolution_function_is_constant_p): Adjust to
        allow constant addresses.
        * tree-chrec.c (scev_is_linear_expression): Constant evolutions
        are linear.

2017-10-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390-builtins.def (vec_nabs, vec_vfi): Fix builtin
        flags.

2017-10-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/82463
        * config/s390/vecintrin.h (vec_madd, vec_msub): Fix macro
        definitions.

2017-10-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/82465
        * config/s390/s390-builtins.def (vec_sqrt): Fix builtin flags.

2017-10-09  Jakub Jelinek  <jakub@redhat.com>

        PR target/82464
        * config/s390/s390-builtins.def (s390_vec_xor_flt_a,
        s390_vec_xor_flt_b, s390_vec_xor_flt_c): New.

2017-10-09  Richard Sandiford  <richard.sandiford@linaro.org>

        * wide-int.h (WI_BINARY_OPERATOR_RESULT): New macro.
        (WI_BINARY_PREDICATE_RESULT): Likewise.
        (wi::binary_traits::operator_result): New type.
        (wi::binary_traits::predicate_result): Likewise.
        (generic_wide_int::operator~, unary generic_wide_int::operator-)
        (generic_wide_int::operator==, generic_wide_int::operator!=)
        (generic_wide_int::operator&, generic_wide_int::and_not)
        (generic_wide_int::operator|, generic_wide_int::or_not)
        (generic_wide_int::operator^, generic_wide_int::operator+
        (binary generic_wide_int::operator-, generic_wide_int::operator*):
        Delete.
        (operator~, unary operator-, operator==, operator!=, operator&)
        (operator|, operator^, operator+, binary operator-, operator*): New
        functions.
        * expr.c (get_inner_reference): Use wi::bit_and_not.
        * fold-const.c (fold_binary_loc): Likewise.
        * ipa-prop.c (ipa_compute_jump_functions_for_edge): Likewise.
        * tree-ssa-ccp.c (get_value_from_alignment): Likewise.
        (bit_value_binop): Likewise.
        * tree-ssa-math-opts.c (find_bswap_or_nop_load): Likewise.
        * tree-vrp.c (zero_nonzero_bits_from_vr): Likewise.
        (extract_range_from_binary_expr_1): Likewise.
        (masked_increment): Likewise.
        (simplify_bit_ops_using_ranges): Likewise.

2017-10-09  Martin Jambor  <mjambor@suse.cz>

        PR hsa/82416
        * hsa-common.h (hsa_op_with_type): New method extend_int_to_32bit.
        * hsa-gen.c (hsa_extend_inttype_to_32bit): New function.
        (hsa_type_for_scalar_tree_type): Use it.  Always force min32int for
        COMPLEX types.
        (hsa_fixup_mov_insn_type): New function.
        (hsa_op_with_type::get_in_type): Use it.
        (hsa_build_append_simple_mov): Likewise.  Allow sub-32bit
        immediates in an assert.
        (hsa_op_with_type::extend_int_to_32bit): New method.
        (gen_hsa_insns_for_bitfield): Fixup instruction and intermediary
        types.  Convert to dest type if necessary.
        (gen_hsa_insns_for_bitfield_load): Fixup load type if necessary.
        (reg_for_gimple_ssa): Pass false as min32int to
        hsa_type_for_scalar_tree_type.
        (gen_hsa_addr): Fixup type when creating addresable temporary.
        (gen_hsa_cmp_insn_from_gimple): Extend operands if necessary.
        (gen_hsa_unary_operation): Extend operands and convert to dest type if
        necessary.  Call hsa_fixup_mov_insn_type.
        (gen_hsa_binary_operation): Changed operand types to hsa_op_with_type,
        extend operands and convert to dest type if necessary.
        (gen_hsa_insns_for_operation_assignment): Extend operands and convert
        to dest type if necessary.
        (set_output_in_type): Call hsa_fixup_mov_insn_type.  Just ude dest
        if conversion nt necessary and size matches.
        (gen_hsa_insns_for_load): Call hsa_fixup_mov_insn_type, convert
        to dest type if necessary.
        (gen_hsa_insns_for_store): Call hsa_fixup_mov_insn_type.
        (gen_hsa_insns_for_switch_stmt): Likewise. Also extend operands if
        necessary.
        (gen_hsa_clrsb): Likewise.
        (gen_hsa_ffs): Likewise.
        (gen_hsa_divmod): Extend operands and convert to dest type if
        necessary.
        (gen_hsa_atomic_for_builtin): Change type of op to hsa_op_with_type.

2017-10-08  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (conditional branch): Clean up formatting.
        Remove empty default arguments.  Use a brace block as output
        statement.
        (conditional return): Ditto.
        (jump): Ditto.
        (indirect_jump): Ditto.  Use b%T0 instead of bctr/blr.
        (tablejump, tablejumpsi, tablejumpdi, *tablejump<mode>_internal1):
        Ditto.
        (group_ending_nop): Ditto.
        (doloop_end): Ditto.
        (ctr<mode>, ctr<mode>_internal1, ctr<mode>_internal2): Ditto.
        (splitters for those): Ditto.

2017-10-08  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000-string.c (expand_strncmp_align_check): Invert
        a conditional jump (and the compare for it) so that pc_rtx is the
        last operand.
        * config/rs6000/rs6000.c (rs6000_legitimate_combined_insn): Adjust
        for the deleted and renamed ctr<mode>_internal[234] patterns.
        * config/rs6000/rs6000.md: Delete second conditional branch pattern.
        Delete second conditional return pattern.
        (ctr<mode>_internal2): Delete this second bdnz pattern.
        (ctr<mode>_internal3): Rename to ctr<mode>_internal2.
        (ctr<mode>_internal4): Delete this second bdz pattern.

2017-10-08  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-outof-ssa.h (ssaexpand): Add partitions_for_undefined_values.
        (always_initialized_rtx_for_ssa_name_p): New predicate.
        * tree-outof-ssa.c (remove_ssa_form): Initialize new field of SA.
        (finish_out_of_ssa): Free new field of SA.
        * tree-ssa-coalesce.h (get_undefined_value_partitions): Declare.
        * tree-ssa-coalesce.c: Include tree-ssa.h.
        (get_parm_default_def_partitions): Remove extern keyword.
        (get_undefined_value_partitions): New function.
        * expr.c (expand_expr_real_1) <expand_decl_rtl>: For a SSA_NAME, do
        not set SUBREG_PROMOTED_VAR_P on the sub-register if it may contain
        uninitialized bits.
        * loop-iv.c (iv_get_reaching_def): Disqualify all subregs.

2017-10-08  Eric Botcazou  <ebotcazou@adacore.com>

        * builtins.def (BUILT_IN_SETJMP): Revert latest change.

2017-10-08  Jan Hubicka  <hubicka@ucw.cz>

        * config/i386/i386.c (ix86_expand_set_or_movmem): Disable 512bit loops
        for targets that preffer 128bit.

2017-10-08  Jan Hubicka  <hubicka@ucw.cz>

        * config/i386/i386.c (has_dispatch): Disable for Ryzen.

2017-10-08  Olivier Hainque  <hainque@adacore.com>

        * config/arm/arm.c (arm_set_return_address): Use MEM_VOLATILE_P
        on the target mem instead of RTX_FRAME_RELATED_P on the insn to
        prevent DSE.
        (thumb_set_return_address): Likewise.

2017-10-08  Olivier Hainque  <hainque@adacore.com>

        * common/config/arm/arm-common.c (arm_except_unwind_info):
        Handle DWARF2_UNWIND_INFO.

2017-10-07  Michael Collison <michael.collison@arm.com>

        * config/aarch64/aarch64.md (*aarch64_reg_<optab>_minus<mode>3):
        New pattern.

2017-10-07  Eric Botcazou  <ebotcazou@adacore.com>

        * builtins.def (BUILT_IN_SETJMP): Declare as library builtin instead
        of GCC builtin if DONT_USE_BUILTIN_SETJMP is defined.
        * except.c (sjlj_emit_function_enter): If DONT_USE_BUILTIN_SETJMP is
        defined, force the creation of a new block for a dispatch label.

2017-10-07  Jan Hubicka  <hubicka@ucw.cz>

        * invoke.texi (Wsuggest-attribute=cold): Document.
        * common.opt (Wsuggest-attribute=cold): New
        * ipa-pure-const.c (warn_function_cold): New function.
        * predict.c (compute_function_frequency): Use it.
        * predict.h (warn_function_cold): Declare.

2017-10-06  Jan Hubicka  <hubicka@ucw.cz>

        * tree-switch-conversion.c (do_jump_if_equal, emit_cmp_and_jump_insns):
        Update profile.

2017-10-06  Martin Liska  <mliska@suse.cz>

        * sanopt.c (struct sanopt_tree_triplet_hash): Remove inline
        keyword for member functions.
        (struct sanopt_tree_couple): New struct.
        (struct sanopt_tree_couple_hash): New function.
        (struct sanopt_ctx): Add new hash_map.
        (has_dominating_ubsan_ptr_check): New function.
        (record_ubsan_ptr_check_stmt): Likewise.
        (maybe_optimize_ubsan_ptr_ifn): Likewise.
        (sanopt_optimize_walker): Handle IFN_UBSAN_PTR.
        (pass_sanopt::execute): Handle also SANITIZE_POINTER_OVERFLOW.

2017-10-06  Sudakshina Das  <sudi.das@arm.com>

        PR target/82440
        * config/aarch64/predicates.md (aarch64_reg_or_orr_imm): Only call
        aarch64_simd_valid_immediate on CONST_VECTORs.
        (aarch64_reg_or_bic_imm): Likewise.

2017-10-06  Wilco Dijkstra  <wdijkstr@arm.com>

        PR rtl-optimization/82396
        * haifa-sched.c (ready_sort_real): Disable qsort checking.

2017-10-06  Sebastian Pop  <sebpop@gmail.com>

        * graphite-dependences.c (scop_get_reads): Move code to...
        (scop_get_must_writes): Move code to...
        (scop_get_may_writes): Move code to...
        (scop_get_reads_and_writes): ... here.
        (scop_get_dependences): Call scop_get_reads_and_writes.

2017-10-06  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/82434
        * fold-const.h (can_native_encode_type_p,
        can_native_encode_string_p): Remove.
        * fold-const.c (native_encode_int): Formatting fixes.  If ptr is NULL,
        don't encode anything, just return what would be otherwise returned.
        (native_encode_fixed, native_encode_complex, native_encode_vector):
        Likewise.
        (native_encode_string): Likewise.  Inline by hand
        can_native_encode_string_p.
        (can_native_encode_type_p): Remove.
        (can_native_encode_string_p): Remove.
        * tree-vect-stmts.c (vectorizable_store): Instead of testing just
        STRING_CSTs using can_native_encode_string_p, test all
        CONSTANT_CLASS_P values using native_encode_expr with NULL ptr.
        * gimple-ssa-store-merging.c (encode_tree_to_bitpos): Remove last
        argument from native_encode_expr.
        (rhs_valid_for_store_merging_p): Use native_encode_expr with NULL ptr.
        (pass_store_merging::execute): Don't unnecessarily look for 3 stmts,
        but just 2.

2017-10-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82397
        * tree-vect-data-refs.c (dr_group_sort_cmp): Do not use
        operand_equal_p but rely on data_ref_compare_tree for detecting
        equalities.
        (vect_analyze_data_ref_accesses): Use data_ref_compare_tree
        to match up with dr_group_sort_cmp.

2017-10-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/82322
        * config/s390/s390-builtins.def (s390_vfi): Define new overloaded
        builtin.
        * config/s390/s390-builtin-types.def: Regenerate.

2017-10-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/82317
        * config/s390/s390-builtin-types.def: Regenerate.
        * config/s390/s390-builtins.def (s390_vfmaxdb_4, s390_vfmindb_4):
        Change flag from B_VXE to B_VX.
        (s390_vec_min_dbl): Remove B_VXE flag.

2017-10-06  Richard Biener  <rguenther@suse.de>

        * graphite-isl-ast-to-gimple.c: Include ssa.h and tree-ssa.h.
        (translate_isl_ast_to_gimple::translate_pending_phi_nodes,
        translate_isl_ast_to_gimple::is_valid_rename,
        translate_isl_ast_to_gimple::get_rename,
        translate_isl_ast_to_gimple::get_def_bb_for_const,
        translate_isl_ast_to_gimple::get_new_name,
        translate_isl_ast_to_gimple::collect_all_ssa_names,
        translate_isl_ast_to_gimple::copy_loop_phi_args,
        translate_isl_ast_to_gimple::collect_all_ssa_names,
        translate_isl_ast_to_gimple::copy_loop_phi_args,
        translate_isl_ast_to_gimple::copy_loop_phi_nodes,
        translate_isl_ast_to_gimple::add_close_phis_to_merge_points,
        translate_isl_ast_to_gimple::add_close_phis_to_outer_loops,
        translate_isl_ast_to_gimple::copy_loop_close_phi_args,
        translate_isl_ast_to_gimple::copy_loop_close_phi_nodes,
        translate_isl_ast_to_gimple::copy_cond_phi_args,
        translate_isl_ast_to_gimple::copy_cond_phi_nodes,
        translate_isl_ast_to_gimple::edge_for_new_close_phis,
        translate_isl_ast_to_gimple::add_phi_arg_for_new_expr,
        translate_isl_ast_to_gimple::rename_uses,
        translate_isl_ast_to_gimple::rename_all_uses): Remove.
        (translate_isl_ast_to_gimple::get_rename_from_scev): Simplify.
        (set_rename_for_each_def): Likewise.
        (graphite_copy_stmts_from_block): Handle debug stmt resetting
        here.  Handle rewriting SCEV analyzable uses here.
        (copy_bb_and_scalar_dependences): Generate code for PHI
        copy-in/outs.
        (graphite_regenerate_ast_isl): Adjust.
        * graphite-scop-detection.c (trivially_empty_bb_p): Move to sese.[ch].
        (add_write, add_read): New functions.
        (build_cross_bb_scalars_def): Use it and simplify.
        (build_cross_bb_scalars_use): Likewise.
        (graphite_find_cross_bb_scalar_vars): Inline into...
        (try_generate_gimple_bb): ...here.  Add dependences for PHIs,
        simulating out-of-SSA.  Compute liveout and add dependencies.
        (build_scops): Force an empty entry block.
        * sese.h (sese_info_t::liveout, sese_info_t::debug_liveout): New
        members.
        (sese_build_liveouts): Declare.
        (sese_trivially_empty_bb_p): Likewise.
        * sese.c (sese_build_liveouts_bb): Properly handle PHIs,
        compute liveout and debug_liveout.
        (sese_bad_liveouts_use): Remove.
        (sese_reset_debug_liveouts_bb): Likewise.
        (sese_reset_debug_liveouts): Rewrite in terms of debug_liveout.
        (sese_build_liveouts): Build liveout and debug_liveout and store
        it in region.
        (new_sese_info): Adjust.
        (free_sese_info): Likewise.
        (sese_insert_phis_for_liveouts): Reset debug stmts from here,
        do not build liveout here.
        (move_sese_in_condition): Adjust region entry.
        (scev_analyzable_p): Match up with chrec_apply requirements.
        (sese_trivially_empty_bb_p): New.
        * tree-into-ssa.c (get_reaching_def): Properly support generating
        default-defs for incremental rewrite of anonymous names.

2017-10-06  Richard Biener  <rguenther@suse.de>

        * graphite-sese-to-poly.c (extract_affine): For casts increasing
        precision do not perform modulo reduction.

2017-10-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82436
        * tree-vect-slp.c (vect_supported_load_permutation_p): More
        conservatively choose the vectorization factor when checking
        whether we can perform the required load permutation.
        (vect_transform_slp_perm_load): Assert when we may not fail.

2017-10-05  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Correct error
        message for incompatible -msdata=* and -mcall-* options.

2017-10-05  Jan Hubicka <hubicka@ucw.cz>

        * config/i386/i386.c (ia32_multipass_dfa_lookahead): Default to issue
        rate for post-reload scheduling.

2017-10-05  Tamar Christina  <tamar.christina@arm.com>

        * doc/sourcebuild.texi (vect_sizes_16B_8B, vect_sizes_32B_16B): New.

2017-10-05  Jan Hubicka <hubicka@ucw.cz>

        * config/i386/i386.c (znver1_cost): Set branch_cost to 3 (instead of 2)
        to improve monte carlo in scimark.

2017-10-05  Jan Hubicka <hubicka@ucw.cz>

        * config/i386/i386.c (ix86_size_cost, i386_cost, i486_cost,
        pentium_cost, lakemont_cost, pentiumpro_cost, geode_cost, k6_cost,
        athlon_cost, k8_cost, amdfam10_cost, btver1_cost, btver2_cost,
        pentium4_cost, nocona_cost): Set reassociation width to 1.
        (bdver1_cost, bdver2_cost, bdver3_cost, bdver4_cost): Set reassociation
        width to 2 for fp operations and 1 otherwise.
        (znver1_cost): Set scalar reassoc width to 4 and vector to 3 and 6
        for int and fp.
        (atom_cost): Set reassociation width to 2.
        (slm_cost, generic_cost): Set fp reassociation width
        to 2 and 1 otherwise.
        (intel_cost): Set fp reassociation width to 4 and 1 otherwise.
        (core_cost): Set fp reassociation width to 4 and vector to 2.
        (ix86_reassociation_width): Rewrite using cost table; special case
        plus/minus on Zen; honor X86_TUNE_SSE_SPLIT_REGS
        and TARGET_AVX128_OPTIMAL.
        * config/i386/i386.h (processor_costs): Add
        reassoc_int, reassoc_fp, reassoc_vec_int, reassoc_vec_fp.
        (TARGET_VECTOR_PARALLEL_EXECUTION, TARGET_REASSOC_INT_TO_PARALLEL,
        TARGET_REASSOC_FP_TO_PARALLEL): Remove.
        * x86-tune.def (X86_TUNE_REASSOC_INT_TO_PARALLEL): Remove.
        (X86_TUNE_REASSOC_FP_TO_PARALLEL): Remove.
        (X86_TUNE_VECTOR_PARALLEL_EXECUTION):  Remove.

2017-10-05  Nathan Sidwell  <nathan@acm.org>

        * doc/invoke.texi (Wparentheses): Document C++ MVP behaviour.

2017-10-05  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm.c (arm_test_fpu_data): New.
        (arm_run_selftests): Call arm_test_fpu_data.

2017-10-04  Nathan Sidwell  <nathan@acm.org>

        * toplev.c (toplev::main): Remove excess parens on pretty_printer
        decl.
        * caller-save.c (insert_save): Remove excess parens on TO_SAVE parm.

2017-10-04  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64-protos.h (enum simd_immediate_check): New
        check type for aarch64_simd_valid_immediate.
        (aarch64_output_simd_mov_immediate): Update prototype.
        (aarch64_simd_valid_immediate): Update prototype.
        * config/aarch64/aarch64-simd.md (orr<mode>3): modified pattern to add
        support for ORR-immediate.
        (and<mode>3): modified pattern to add support for BIC-immediate.
        * config/aarch64/aarch64.c (aarch64_simd_valid_immediate): Function
        now checks for valid immediate for BIC and ORR based on new enum
        argument.
        (aarch64_output_simd_mov_immediate): Function now used to output
        BIC/ORR imm as well based on new enum argument.
        * config/aarch64/constraints.md (Do): New vector immediate constraint.
        (Db) : Likewise.
        * config/aarch64/predicates.md (aarch64_reg_or_orr_imm): New predicate.
        (aarch64_reg_or_bic_imm): Likewise.

2017-10-04  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/vx-builtins.md ("vec_mergeh<mode>")
        ("vec_mergel<mode>"): Change mode iterator to V_128_NOSINGLE.

2017-10-04  Wilco Dijkstra  <wdijkstr@arm.com>

        Revert r253399:

        PR rtl-optimization/82396
        * haifa-sched.c (autopref_multipass_init): Simplify
        initialization.
        (autopref_rank_data): Simplify sort order.
        * sched-int.h (autopref_multipass_data_): Remove
        multi_mem_insn_p, min_offset and max_offset.

2017-10-04  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * doc/sourcebuild.texi: Document vect_peeling_profitable.

2017-10-04  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * doc/sourcebuild.texi: Document vect_intdouble_cvt and
        vect_doubleint_cvt.

2017-10-04  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * doc/sourcebuild.texi: Document vect_long_mult.

2017-10-04  Richard Sandiford  <richard.sandiford@linaro.org>

        PR tree-optimization/82413
        * fold-const.c (build_range_check): Use widest_int when comparing
        the maximum ETYPE value with HIGH.

2017-10-04  Wilco Dijkstra  <wdijkstr@arm.com>

        PR rtl-optimization/82396
        * haifa-sched.c (autopref_multipass_init): Simplify
        initialization.
        (autopref_rank_data): Simplify sort order.
        * sched-int.h (autopref_multipass_data_): Remove
        multi_mem_insn_p, min_offset and max_offset.

2017-10-04  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/82381
        * tree-ssa-reassoc.c (sort_by_operand_rank): Check for different
        oeN->rank first.  Return 1 or -1 if one op is SSA_NAME and the other
        is not.

        PR tree-optimization/82374
        * omp-low.c (create_omp_child_function): Copy DECL_ATTRIBUTES,
        DECL_FUNCTION_SPECIFIC_OPTIMIZATION,
        DECL_FUNCTION_SPECIFIC_TARGET and DECL_FUNCTION_VERSIONED from
        current_function_decl to the new decl.

2017-10-03  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-builtin.def (BU_FLOAT128_2_HW): Define new
        helper macro for IEEE float128 hardware built-in functions.
        (SQRTF128_ODD): Add built-in functions with the round-to-odd
        semantics.
        (TRUNCF128_ODD): Likewise.
        (ADDF128_ODD): Likewise.
        (SUBF128_ODD): Likewise.
        (MULF128_ODD): Likewise.
        (DIVF128_ODD): Likewise.
        (FMAF128_ODD): Likewise.
        * config/rs6000/rs6000.md (UNSPEC_ROUND_TO_ODD): Rename to
        UNSPEC_TRUNC_ROUND_TO_ODD.
        (UNSPEC_TRUNC_ROUND_TO_ODD): Likewise.
        (UNSPEC_ADD_ROUND_TO_ODD): New unspec codes for the IEEE 128-bit
        floating point round to odd instructions.
        (UNSPEC_SUB_ROUND_TO_ODD): Likewise.
        (UNSPEC_MUL_ROUND_TO_ODD): Likewise.
        (UNSPEC_DIV_ROUND_TO_ODD): Likewise.
        (UNSPEC_FMA_ROUND_TO_ODD): Likewise.
        (UNSPEC_SQRT_ROUND_TO_ODD): Likewise.
        (trunc<mode>sf2_hw): Change the truncate with round to odd
        expansion to use UNSPEC_TRUNC_ROUND_TO_ODD.
        (add<mode>3_odd): Add insns for IEEE 128-bit floating point round
        to odd hardware instructions.
        (sub<mode>3_odd): Likewise.
        (mul<mode>3_odd): Likewise.
        (div<mode>3_odd): Likewise.
        (sqrt<mode>2_odd): Likewise.
        (fma<mode>4_odd): Likewise.
        (fms<mode>4_odd): Likewise.
        (nfma<mode>4_odd): Likewise.
        (nfms<mode>4_odd): Likewise.
        (trunc<mode>df2_odd): Change the truncate with round to odd
        expansion to use UNSPEC_TRUNC_ROUND_TO_ODD.  Add a generator
        function.
        * doc/extend.texi (PowerPC built-in functions): Update documentation
        for existing IEEE float128-bit built-in functions.  Add built-in
        functions that generate the IEEE 128-bit floating point round to
        odd instructions.

2017-10-03  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/77729
        * simplify-rtx.c (simplify_binary_operation_1): Delete the (X&C1)|C2
        to (X&(C1&~C2))|C2 transformations.

2017-10-03  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/82363
        * tree-sra.c (propagate_subaccesses_across_link): In unrecoverable
        mismatch, mark lacc written regardless of racc.

2017-10-03  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/82381
        * tree-ssa-reassoc.c (sort_by_operand_rank): Don't check
        stmt_to_insert nor wheather SSA_NAMEs are default defs.
        Return 1 or -1 if one of bba and bbb is NULL. If bb_rank is equal,
        fallthrough into reassoc_stmt_dominates_stmt_p.

        PR target/82386
        * combine.c (combine_instructions): Don't combine in unreachable
        basic blocks.

2017-10-02  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/80210
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Rewrite
        function to not use the have_cpu variable.  Do not set cpu_index,
        rs6000_cpu_index or rs6000_tune_index if we end up using TARGET_DEFAULT
        or the default cpu.
        (rs6000_valid_attribute_p): Remove duplicate initializations of
        old_optimize and func_optimize.
        (rs6000_pragma_target_parse): Call rs6000_activate_target_options ().
        (rs6000_activate_target_options): Make global.
        * config/rs6000/rs6000-protos.h (rs6000_activate_target_options): Add
        prototype.

2017-10-02  Jakub Jelinek  <jakub@redhat.com>

        * tree-dfa.c (get_ref_base_and_extent): Set *pmax_size to -1
        if *poffset + *pmax_size overflows in HOST_WIDE_INT.
        Set *poffset to 0 and *psize and *pmax_size to -1 if
        *poffset + *psize overflows in HOST_WIDE_INT.

        PR tree-optimization/82387
        PR tree-optimization/82388
        PR tree-optimization/82389
        * tree-ssa-dse.c (dse_classify_store): Test byte_tracking_enabled
        instead of live_bytes non-NULL.

2017-10-02  Georg-Johann Lay  <avr@gjlay.de>

        PR target/41076
        * confg/avr/avr.md (*iorhi3.ashift8-ext.zerox): Add "r,r,0"
        alternative.

2017-10-02  Richard Biener  <rguenther@suse.de>

        * graphite-isl-ast-to-gimple.c (set_codegen_error): With
        -fchecking and --param graphite-allow-codegen-errors=0 ICE.
        * params.def (PARAM_GRAPHITE_ALLOW_CODEGEN_ERRORS): New param.

2017-10-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree.h (wi::int_traits <const_tree>::decompose): Assert that the
        requested precision matches the type's.
        * calls.c (alloc_max_size): Calculate the new candidate size as
        a widest_int and use wi::to_widest when comparing it with the
        current candidate size.
        * gimple-ssa-warn-alloca.c (pass_walloca::execute): Compare with
        zero rather than integer_zero_node.
        * match.pd: Check for a no-op conversion before using wi::add
        rather than after.  Use tree_to_uhwi when summing small shift
        counts into an unsigned int.

2017-10-02  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        PR target/71307
        * config/aarch64/aarch64.h (POINTER_AND_FP_REGS): New reg class.
        (REG_CLASS_NAMES, REG_CLASS_CONTENTS): Update accordingly.
        * config/aarch64/aarch64.c (aarch64_class_max_nregs): Handle
        POINTER_AND_FP_REGS.

2017-10-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82355
        * graphite-isl-ast-to-gimple.c (build_iv_mapping): Also build
        a mapping for the enclosing loop but avoid generating one for
        the loop tree root.
        (copy_bb_and_scalar_dependences): Remove premature codegen
        error on PHIs in blocks duplicated into multiple places.
        * graphite-scop-detection.c
        (scop_detection::stmt_has_simple_data_refs_p): For a loop not
        in the region use it as loop and nest to analyze the DR in.
        (try_generate_gimple_bb): Likewise.
        * graphite-sese-to-poly.c (extract_affine_chrec): Adjust.
        (add_loop_constraints): For blocks in a loop not in the region
        create a dimension with a single iteration.
        * sese.h (gbb_loop_at_index): Remove assert.

2017-10-01  Kevin Buettner  <kevinb@redhat.com>

        * omp-expand.c (adjust_context_scope): New function.
        (expand_parallel_call): Call adjust_context_scope.

2017-10-01  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (optimize_stmt): Make this a method within the
        dom_opt_dom_walker class with direct access to private members.
        Add comments.  Call test_for_singularity.
        (dom_opt_dom_walker::before_dom_children): Corresponding changes.
        (dom_opt_dom_walker::after_dom_children): Do not lazily initialize
        m_dummy_cond anymore.
        (class dom_opt_dom_walker): Initialize m_dummy_cond member in the
        class ctor.
        (pass_dominator:execute): Build the dummy_cond here and pass it
        to the dom_opt_dom_walker ctor.
        (test_for_singularity): New function.

2017-09-30  Krister Walfridsson  <krister.walfridsson@gmail.com>
            Maya Rashish  <coypu@sdf.org>

        * config.gcc (*-*-netbsd*): New variable nbsd_tm_file containing
        netbsd.h, netbsd-stdint.h, and netbsd-elf.h.
        (alpha*-*-netbsd*) Use nbsd_tm_file.
        (arm*-*-netbsdelf*) Likewise.
        (i[34567]86-*-netbsdelf*) Likewise.
        (x86_64-*-netbsd*) Likewise.
        (mips*-*-netbsd*) Likewise.
        (powerpc-*-netbsd*) Likewise.
        (sh*-*-netbsd*) Likewise.
        (sparc-*-netbsdelf*) Likewise.
        (sparc64-*-netbsd*) Likewise.
        (m68k*-*-netbsdelf*) Use nbsd_tm_file and add CHAR_FAST8/SHORT_FAST16
        to tm_defines.
        (vax-*-netbsdelf*) Likewise.
        * config/netbsd-stdint.h (INT_FAST8_TYPE): Check CHAR_FAST8.
        (UINT_FAST8_TYPE) Likewise.
        (INT_FAST16_TYPE) Check CHAR_FAST16.
        (UINT_FAST16_TYPE) Likewise.

2017-09-30  Jakub Jelinek  <jakub@redhat.com>

        PR target/82361
        * config/i386/i386.md
        (TARGET_USE_8BIT_IDIV zext divmodsi4 splitter): New define_split.
        (divmodsi4_zext_1, divmodsi4_zext_2, *divmodsi4_zext_1,
        *divmodsi4_zext_2): New define_insn_and_split.
        (*divmodsi4_noext_zext_1, *divmodsi4_noext_zext_2): New define_insn.
        (TARGET_USE_8BIT_IDIV zext udivmodsi4 splitter): New define_split.
        (udivmodsi4_zext_1, udivmodsi4_zext_2, *udivmodsi4_zext_1,
        *udivmodsi4_zext_2, *udivmodsi4_pow2_zext_1, *udivmodsi4_pow2_zext_2):
        New define_insn_and_split.
        (*udivmodsi4_noext_zext_1, *udivmodsi4_noext_zext_2): New define_insn.
        * config/i386/i386.c (ix86_split_idivmod): Handle operands[0] or
        operands[1] having DImode when mode is SImode.

        * config/i386/i386.c (ix86_split_idivmod): Use mode instead of
        always SImode for DIV and MOD in REG_EQUAL notes.

2017-09-29  Yury Gribov  <tetra2005@gmail.com>

        PR middle-end/82319
        * match.pd: Fix handling of NaNs in pattern.

2017-09-29  Jeff Law  <law@redhat.com>

        * sbitmap.c (bitmap_bit_in_range_p): New function.
        * sbitmap.h (bitmap_bit_in_range_p): Prototype.
        * tree-ssa-dse.c (live_bytes_read): New function.
        (dse_classify_store): Ignore reads of dead bytes.

        * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): Fix
        typos and whitespace errors.
        * config/i386/predicates.md (address_no_seg_operand): Likewise.
        * config/s390/s390.c (s390_emit_prologue): Likewise.

2017-09-29  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/81481
        * ira-costs.c (scan_one_insn): Don't take into account PIC equiv
        with a symbol for LRA.

2017-09-29  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/82338
        * lra-constraints.c (inherit_in_ebb): Check usage_insns check.

2017-09-29  Alexander Monakov  <amonakov@ispras.ru>

        * genmodes.c (calc_wider_mode): Suppress qsort macro.
        * system.h [CHECKING_P] (qsort): Redirect to qsort_chk.
        (qsort_chk): Declare.
        * vec.c [CHECKING_P] (qsort_chk_error): New static function.
        (qsort_chk): New function.

2017-09-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/82337
        * gimple-ssa-strength-reduction.c (find_phi_def): Don't record a
        phi definition if the PHI result appears in an abnormal PHI.
        (find_basis_for_base_expr): Don't record a basis if the LHS of the
        basis appears in an abnormal PHI.

2017-09-29  Richard Biener  <rguenther@suse.de>

        * graphite-isl-ast-to-gimple.c
        (translate_isl_ast_to_gimple::set_codegen_error): New function.
        (binary_op_to_tree): Use it.
        (get_rename_from_scev): Likewise.
        (copy_loop_phi_nodes): Likewise.
        (copy_bb_and_scalar_dependences): Likewise.
        (translate_pending_phi_nodes): Likewise.

2017-09-29  Jakub Jelinek  <jakub@redhat.com>

        PR target/82339
        * config/i386/i386.md (*movdi_internal peephole2): New -Os peephole
        for movabsq $(i32 << shift), r64.

2017-09-28  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_print_operand_address_as): Do not check
        index when encoding %esp as %rsp to avoid 0x67 prefix.

2017-09-28  Sergey Shalnov  <Sergey.Shalnov@intel.com>

        * config/i386/i386.md (*movsf_internal, *movdf_internal):
        Return 256-bit AVX modes for TARGET_PREFER_AVX256.

2017-09-28  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (arm_option_override): Forbid ARMv8-M Security
        Extensions with more than 16 double VFP registers.
        (cmse_nonsecure_entry_clear_before_return): Remove second entry of
        to_clear_mask and all code related to it.  Replace the remaining
        entry by a sbitmap and adapt code accordingly.

2017-09-28  Henry Linjamäki  <henry.linjamaki@parmance.com>

        * brig-builtins.def: Change pure attributes to const.

2017-09-28  Joseph Myers  <joseph@codesourcery.com>

        * config.gcc (default_gnu_indirect_function): Default to yes for
        sparc*-*-linux* with glibc.

2017-09-28  Joseph Myers  <joseph@codesourcery.com>

        * config/aarch64/aarch64.c (aarch64_elf_asm_constructor)
        (aarch64_elf_asm_destructor): Pass SECTION_NOTYPE to get_section
        when creating .init_array and .fini_array sections with priority
        specified.

2017-09-27  Christophe Lyon  <christophe.lyon@linaro.org>

        PR target/71727
        * config/aarch64/aarch64.c
        (aarch64_builtin_support_vector_misalignment): Always return false
        when misalignment is unknown.

2017-09-27  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/rs6000-p8swap.c (const_load_sequence_p): Revise
        this function to return false if the definition used by the swap
        instruction is artificial, or if the memory address from which the
        constant value is loaded is not represented by a base address held
        in a register or if the base address register is a frame or stack
        pointer.  Additionally, return false if the base address of the
        loaded constant is a SYMBOL_REF but is not considered to be a
        constant.
        (replace_swapped_load_constant): New function.
        (rs6000_analyze_swaps): Add a new pass to replace a swap of a
        loaded constant vector with a load of a swapped constant vector.

2017-09-27  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-builtin.def (BU_FP_1MISC_1): Add define macro.
        (FCTID, FCTIW): Add BU_FP_MISC_1 macro expansion for builtins.
        * config/rs6000/rs6000.md (lrintsfsi2): Add define_insn for the
        fctiw instruction.

2017-09-27  Alexander Monakov  <amonakov@ispras.ru>

        * haifa-sched.c (autopref_rank_for_schedule): Order 'irrelevant' insns
        first, always call autopref_rank_data otherwise.

2017-09-27  Richard Biener  <rguenther@suse.de>

        * graphite-scop-detection.c (find_scop_parameters): Move
        loop bound handling ...
        (gather_bbs::before_dom_children): ... here, avoiding the need
        to build scop_info->loop_nest.
        (record_loop_in_sese): Remove.
        * sese.h (sese_info_t::loop_nest): Remove.
        * sese.c (new_sese_info): Do not allocate loop_nest.
        (free_sese_info): Do not free loop_nest.

2017-09-27  Jakub Jelinek  <jakub@redhat.com>

        PR c++/82159
        * gimplify.c (gimplify_modify_expr): Don't optimize away zero sized
        lhs from calls if the lhs has addressable type.

2017-09-27  Richard Biener  <rguenther@suse.de>

        * graphite.h (scop::max_alias_set): New member.
        * graphite-scop-detection.c: Remove references to non-existing
        --param in comments.
        (build_alias_sets): Record the maximum alias set used for drs.
        (build_scops): Support zero as unlimited for
        --param graphite-max-arrays-per-scop.
        * graphite-sese-to-poly.c (add_scalar_version_numbers): Remove
        and inline into ...
        (build_poly_sr_1): ... here.  Compute alias set based on the
        maximum alias set used for drs rather than
        PARAM_GRAPHITE_MAX_ARRAYS_PER_SCOP

2017-09-27  Richard Biener  <rguenther@suse.de>

        * graphite-optimize-isl.c (get_schedule_for_node_st): Allow
        --param loop-block-tile-size=0 to disable tiling.

2017-09-27  Richard Biener  <rguenther@suse.de>

        * doc/invoke.texi (graphite-max-bbs-per-function): Remove.
        (graphite-max-nb-scop-params): Document special value zero.
        * domwalk.h (dom_walker::STOP): New symbolical constant.
        (dom_walker::dom_walker): Add optional parameter for bb to
        RPO mapping.
        (dom_walker::~dom_walker): Declare.
        (dom_walker::before_dom_children): Document STOP return value.
        (dom_walker::m_user_bb_to_rpo): New member.
        (dom_walker::m_bb_to_rpo): Likewise.
        * domwalk.c (dom_walker::dom_walker): Compute bb to RPO
        mapping here if not provided by the user.
        (dom_walker::~dom_walker): Free bb to RPO mapping if not
        provided by the user.
        (dom_walker::STOP): Define.
        (dom_walker::walk): Do not compute bb to RPO mapping here.
        Support STOP return value from before_dom_children to stop
        walking.
        * graphite-optimize-isl.c (optimize_isl): If the schedule
        is the same still generate code if -fgraphite-identity
        or -floop-parallelize-all are given.
        * graphite-scop-detection.c: Include cfganal.h.
        (gather_bbs::gather_bbs): Get and pass through bb to RPO
        mapping.
        (gather_bbs::before_dom_children): Return STOP for BBs
        not in the region.
        (build_scops): Compute bb to RPO mapping and pass it to
        the domwalk.  Treat --param graphite-max-nb-scop-params=0
        as not limiting the number of params.
        * graphite.c (graphite_initialize): Remove limit on the
        number of basic-blocks in a function.
        * params.def (PARAM_GRAPHITE_MAX_BBS_PER_FUNCTION): Remove.
        (PARAM_GRAPHITE_MAX_NB_SCOP_PARAMS): Adjust to documented
        default value of 10.

2017-09-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/vsx.md (peephole for optimizing move SF to GPR):
        Adjust code to eliminate needing to do the shift right 32-bits
        operation after XSCVDPSPN.

2017-09-26  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * match.pd ((X / Y) == 0 -> X < Y): New pattern.
        ((X / Y) != 0 -> X >= Y): Likewise.

2017-09-26  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c.c (P9V_BUILTIN_VEC_XL_LEN_R,
        P9V_BUILTIN_VEC_XST_LEN_R): Add support for builtins
        vector unsigned char vec_xl_len_r (unsigned char *, size_t);
        void vec_xst_len_r (vector unsigned char, unsigned char *, size_t);
        * config/rs6000/altivec.h (vec_xl_len_r, vec_xst_len_r): Add defines.
        * config/rs6000/rs6000-builtin.def (XL_LEN_R, XST_LEN_R): Add
        definitions and overloading.
        * config/rs6000/rs6000.c (altivec_expand_builtin): Add case
        statement for P9V_BUILTIN_XST_LEN_R.
        (altivec_init_builtins): Add def_builtin for P9V_BUILTIN_STXVLL.
        * config/rs6000/vsx.md (lxvll, stxvll, xl_len_r, xst_len_r): Add
        define_expand and define_insn for the instructions and builtins.
        * doc/extend.texi: Update the built-in documentation file for the new
        built-in functions.
        * config/rs6000/altivec.md (altivec_lvsl_reg, altivec_lvsr_reg): Add
        define_insn for the instructions

2017-09-26  Krister Walfridsson  <krister.walfridsson@gmail.com>

        PR target/39570
        * gcc/config/netbsd-protos.h: New file.
        * gcc/config/netbsd.c: New file.
        * gcc/config/netbsd.h (SUBTARGET_INIT_BUILTINS): Define.
        * gcc/config/t-netbsd: New file.
        * gcc/config.gcc (tm_p_file): Add netbsd-protos.h.
        (tmake_file) Add t-netbsd.
        (extra_objs) Add netbsd.o.

2017-09-26  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/82143
        PR fortran/82324
        * doc/sourcebuild.texi: Document fortran_real_10 and fortran_real_16.

2017-09-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.md (extendsi<mode>2): Add a splitter to do
        sign extension from a vector register to a GPR by doing a 32-bit
        direct move and then an EXTSW.
        (extendsi<mode>2 splitter): Likewise.
        (movsi_from_sf): Adjust code to eliminate doing a 32-bit shift
        right or vector extract after doing XSCVDPSPN.  Use
        zero_extendsidi2 instead of p8_mfvsrd_4_disf to move the value to
        the GPRs.
        (movdi_from_sf_zero_ext): Likewise.
        (reload_gpr_from_vsxsf): Likewise.
        (p8_mfvsrd_4_disf): Delete, no longer used.
        (movsi_from_df): Optimize converting a DFmode to a SFmode, and
        then needing to move the SFmode to a GPR to use the XSCVDPSP
        instruction instead of FRSP and XSCVDPSPN.
        * config/rs6000/vsx.md (vsx_xscvspdp_scalar2): Move insn so that
        it is adjacent to the other XSCVSPDP insns.
        (vsx_xscvdpsp_scalar): Use "ww" constraint instead of "f" to allow
        SFmode to be in traditional Altivec registers.
        (vsx_xscvdpspn): Eliminate useless alternative constraint.
        (vsx_xscvspdpn): Likewise.
        (vsx_xscvspdpn_scalar): Likewise.

2017-09-26  Martin Jambor  <mjambor@suse.cz>

        * tree-sra.c (compare_access_positions): Put integral types first,
        stabilize sorting of integral types, remove conditions putting
        non-full-precision integers last.
        (sort_and_splice_var_accesses): Disable scalarization if a
        non-integert would be represented by a non-full-precision integer.

2017-09-26  Joseph Myers  <joseph@codesourcery.com>

        * config/microblaze/linux.h (TARGET_ASM_FILE_END): Likewise.
        * config/pa/pa.h (NEED_INDICATE_EXEC_STACK): Likewise.
        * config/pa/pa-linux.h (NEED_INDICATE_EXEC_STACK): Likewise.
        * config/pa/pa.c (pa_hpux_file_end): Rename to pa_file_end.
        Define unconditionally, with [ASM_OUTPUT_EXTERNAL_REAL]
        conditionals inside the function instead of around it.  Call
        file_end_indicate_exec_stack if NEED_INDICATE_EXEC_STACK.
        (TARGET_ASM_FILE_END): Define unconditionally to pa_file_end.

2017-09-26  Richard Biener  <rguenther@suse.de>

        * graphite-scop-detection.c (scop_detection::build_scop_depth): Rewrite,
        fold in ...
        (scop_detection::build_scop_breadth): ... this.  Removed.
        (scop_detection::loop_is_valid_in_scop): Fold into single caller.
        (scop_detection::harmful_stmt_in_bb): Likewise.
        (scop_detection::graphite_can_represent_stmt): Likewise.
        (scop_detection::loop_body_is_valid_scop): Likewise.  Remove recursion.
        (scop_detection::can_represent_loop): Remove recursion, fold in ...
        (scop_detection::can_represent_loop_1): ... this.  Removed.
        (scop_detection::harmful_loop_in_region): Simplify after inlining
        the above and remove more quadraticness.
        (build_scops): Adjust.
        * tree-data-ref.c (loop_nest_has_data_refs): Remove pointless
        quadraticness.

2017-09-26  Jakub Jelinek  <jakub@redhat.com>

        PR target/82267
        * config/i386/i386.c (ix86_print_operand_address_as): Only test
        REGNO (base) == SP_REG if base is a REG.

        PR middle-end/35691
        * tree-ssa-reassoc.c (update_range_test): Dump r->exp each time
        if it is different SSA_NAME.
        (optimize_range_tests_cmp_bitwise): New function.
        (optimize_range_tests): Call it.

2017-09-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82321
        * graphite.c (canonicalize_loop_closed_ssa): Properly check
        for the def being inside the loop.

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/vx-builtins.md ("vmslg"): Add missing operand in
        assembler output.
        * config/s390/s390-builtins.def: Fix constraint on op4.

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_expand_vec_compare): Use the new mode
        independent expanders.
        * config/s390/vector.md ("vec_cmpuneq", "vec_cmpltgt")
        ("vec_ordered", "vec_unordered"): New expanders.

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_preferred_simd_mode): Return V4SFmode
        for SFmode.

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/vector.md ("vec_unpacks_low_v16qi"): Rename to
        vec_unpacks_lo_v16qi.
        ("vec_unpacku_low_v16qi"): Rename to vec_unpacku_lo_v16qi.

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/vector.md ("vec_unpacks_lo_v4sf")
        ("vec_unpacks_hi_v4sf", "vec_unpacks_lo_v2df")
        ("vec_unpacks_hi_v2df", "vec_pack_trunc_v2df"): New expanders.

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/predicates.md ("const_shift_by_byte_operand"): New
        predicate.
        * config/s390/vector.md ("*vec_srb<mode>"): Change modes to V_128
        and V16QI.
        ("*vec_slb<mode>"): New insn pattern.
        ("vec_shr_<mode>"): New expander.
        * config/s390/vx-builtins.md ("vec_slb<mode>"): Turn into expander
        and force the shift count operand to V16QImode.
        ("vec_srb<mode>"): Set shift count mode to V16QI.

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/vector.md ("vec_widen_umult_lo_<mode>")
        ("vec_widen_umult_hi_<mode>", "vec_widen_smult_lo_<mode>")
        ("vec_widen_smult_hi_<mode>"): New expander definitions.

2017-09-26  Richard Earnshaw  <rearnsha@arm.com>

        PR target/82175
        * config/arm/arm.h (DRIVER_SELF_SPECS): Separate sub-rules with commas.

2017-09-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82320
        * tree-ssa-sccvn.c (set_ssa_val_to): Changing undef to undef
        isn't a change.

2017-09-25  Jeff Law  <law@redhat.com>

        * config/rs6000/rs6000-protos.h (output_probe_stack_range): Update
        prototype for new argument.
        * config/rs6000/rs6000.c (rs6000_emit_allocate_stack_1): New function,
        mostly extracted from rs6000_emit_allocate_stack.
        (rs6000_emit_probe_stack_range_stack_clash): New function.
        (rs6000_emit_allocate_stack): Call
        rs6000_emit_probe_stack_range_stack_clash as needed.
        (rs6000_emit_probe_stack_range): Add additional argument
        to call to gen_probe_stack_range{si,di}.
        (output_probe_stack_range): New.
        (output_probe_stack_range_1): Renamed from output_probe_stack_range.
        (output_probe_stack_range_stack_clash): New.
        (rs6000_emit_prologue): Emit notes into dump file as requested.
        * rs6000.md (allocate_stack): Handle -fstack-clash-protection.
        (probe_stack_range<P:mode>): Operand 0 is now early-clobbered.
        Add additional operand and pass it to output_probe_stack_range.

2017-09-25  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/82163
        * tree-ssa-loop-manip.h (verify_loop_closed_ssa): New parameter.
        (checking_verify_loop_closed_ssa): New parameter.
        * tree-ssa-loop-manip.c (check_loop_closed_ssa_use): Delete.
        (check_loop_closed_ssa_stmt): Delete.
        (check_loop_closed_ssa_def, check_loop_closed_ssa_bb): New functions.
        (verify_loop_closed_ssa): Check loop closed ssa form for LOOP.
        (tree_transform_and_unroll_loop): Check loop closed ssa form only for
        changed loops.

2017-09-25  Pekka Jaaskelainen <pekka@parmance.com>

        * brig-builtins.def: Treat HSAIL barrier builtins as
        setjmp/longjump style functions.

2017-09-25  Richard Sandiford  <richard.sandiford@linaro.org>

        * target.def (constant_alignment): New hook.
        * defaults.h (CONSTANT_ALIGNMENT): Delete.
        * doc/tm.texi.in (CONSTANT_ALIGNMENT): Replace with...
        (TARGET_CONSTANT_ALIGNMENT): ...this new hook.
        * doc/tm.texi: Regenerate.
        * targhooks.h (default_constant_alignment): Declare.
        (constant_alignment_word_strings): Likewise.
        * targhooks.c (default_constant_alignment): New function.
        (constant_alignment_word_strings): Likewise.
        * builtins.c (get_object_alignment_2): Use targetm.constant_alignment
        instead of CONSTANT_ALIGNMENT.
        * varasm.c (align_variable, get_variable_align, build_constant_desc)
        (force_const_mem): Likewise.
        * config/aarch64/aarch64.h (CONSTANT_ALIGNMENT): Delete.
        * config/aarch64/aarch64.c (aarch64_constant_alignment): New function.
        (aarch64_classify_address): Call it instead of CONSTANT_ALIGNMENT.
        (TARGET_CONSTANT_ALIGNMENT): Redefine.
        * config/alpha/alpha.h (CONSTANT_ALIGNMENT): Delete commented-out
        definition.
        * config/arc/arc.h (CONSTANT_ALIGNMENT): Delete.
        * config/arc/arc.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/arm/arm.h (CONSTANT_ALIGNMENT_FACTOR): Delete.
        (CONSTANT_ALIGNMENT): Likewise.
        * config/arm/arm.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
        (arm_constant_alignment): New function.
        * config/bfin/bfin.h (CONSTANT_ALIGNMENT): Delete.
        * config/bfin/bfin.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/cr16/cr16.h (CONSTANT_ALIGNMENT): Delete.
        * config/cr16/cr16.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/cris/cris.h (CONSTANT_ALIGNMENT): Delete.
        * config/cris/cris.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
        (cris_constant_alignment): New function.
        * config/epiphany/epiphany.h (CONSTANT_ALIGNMENT): Delete.
        * config/epiphany/epiphany.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
        (epiphany_constant_alignment): New function.
        * config/fr30/fr30.h (CONSTANT_ALIGNMENT): Delete.
        * config/fr30/fr30.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/frv/frv.h (CONSTANT_ALIGNMENT): Delete.
        * config/frv/frv.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/ft32/ft32.h (CONSTANT_ALIGNMENT): Delete.
        * config/ft32/ft32.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/i386/i386.h (CONSTANT_ALIGNMENT): Delete.
        * config/i386/i386-protos.h (ix86_constant_alignment): Delete.
        * config/i386/i386.c (ix86_constant_alignment): Make static.
        Use the same interface as the target hook.
        (TARGET_CONSTANT_ALIGNMENT): Redefine.
        * config/ia64/ia64.h (CONSTANT_ALIGNMENT): Delete.
        * config/ia64/ia64.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/iq2000/iq2000.h (CONSTANT_ALIGNMENT): Delete.
        * config/iq2000/iq2000.c (iq2000_constant_alignment): New function.
        (TARGET_CONSTANT_ALIGNMENT): Redefine.
        * config/lm32/lm32.h (CONSTANT_ALIGNMENT): Delete.
        * config/lm32/lm32.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/m32r/m32r.h (CONSTANT_ALIGNMENT): Delete.
        * config/m32r/m32r.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/mcore/mcore.h (CONSTANT_ALIGNMENT): Delete.
        * config/mcore/mcore.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/microblaze/microblaze.h (CONSTANT_ALIGNMENT): Delete.
        * config/microblaze/microblaze.c (microblaze_constant_alignment):
        New function.
        (TARGET_CONSTANT_ALIGNMENT): Redefine.
        * config/mips/mips.h (CONSTANT_ALIGNMENT): Delete.
        * config/mips/mips.c (mips_constant_alignment): New function.
        (TARGET_CONSTANT_ALIGNMENT): Redefine.
        * config/mmix/mmix.h (CONSTANT_ALIGNMENT): Delete.
        * config/mmix/mmix-protos.h (mmix_constant_alignment): Delete.
        * config/mmix/mmix.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
        (mmix_constant_alignment): Make static.  Use the same interface
        as the target hook.
        * config/moxie/moxie.h (CONSTANT_ALIGNMENT): Delete.
        * config/moxie/moxie.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/nios2/nios2.h (CONSTANT_ALIGNMENT): Delete.
        * config/nios2/nios2.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/pa/pa.h (CONSTANT_ALIGNMENT): Delete.
        * config/pa/pa.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/powerpcspe/powerpcspe.h (CONSTANT_ALIGNMENT): Delete.
        * config/powerpcspe/powerpcspe.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
        (rs6000_constant_alignment): New function.
        * config/riscv/riscv.h (CONSTANT_ALIGNMENT): Delete.
        * config/riscv/riscv.c (riscv_constant_alignment): New function.
        (TARGET_CONSTANT_ALIGNMENT): Redefine.
        * config/rs6000/rs6000.h (CONSTANT_ALIGNMENT): Delete.
        * config/rs6000/rs6000.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
        (rs6000_constant_alignment): New function.
        * config/s390/s390.h (CONSTANT_ALIGNMENT): Delete.
        * config/s390/s390.c (s390_constant_alignment): New function.
        (TARGET_CONSTANT_ALIGNMENT): Redefine.
        * config/sh/sh.h (CONSTANT_ALIGNMENT): Delete.
        * config/sh/sh.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/sparc/sparc.h (CONSTANT_ALIGNMENT): Delete.
        * config/sparc/sparc.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
        (sparc_constant_alignment): New function.
        * config/spu/spu.h (CONSTANT_ALIGNMENT): Delete.
        * config/spu/spu.c (spu_constant_alignment): New function.
        (TARGET_CONSTANT_ALIGNMENT): Redefine.
        * config/stormy16/stormy16.h (CONSTANT_ALIGNMENT): Delete.
        * config/stormy16/stormy16.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/tilegx/tilegx.h (CONSTANT_ALIGNMENT): Delete.
        * config/tilegx/tilegx.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/tilepro/tilepro.h (CONSTANT_ALIGNMENT): Delete.
        * config/tilepro/tilepro.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
        constant_alignment_word_strings.
        * config/visium/visium.h (CONSTANT_ALIGNMENT): Delete.
        * config/visium/visium.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
        (visium_constant_alignment): New function.
        * config/xtensa/xtensa.h (CONSTANT_ALIGNMENT): Delete.
        * config/xtensa/xtensa.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
        (xtensa_constant_alignment): New function.
        * system.h (CONSTANT_ALIGNMENT): Poison.

2017-09-25  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add handling
        for early folding of vector stores (ALTIVEC_BUILTIN_ST_*).
        (rs6000_builtin_valid_without_lhs): New helper function.
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        Remove obsoleted code for handling ALTIVEC_BUILTIN_VEC_ST.

2017-09-25  Richard Sandiford  <richard.sandiford@linaro.org>

        * target.h (vec_perm_indices): Use unsigned short rather than
        unsigned char.
        (auto_vec_perm_indices): Likewise.
        * config/aarch64/aarch64.c (aarch64_vectorize_vec_perm_const_ok):
        Use unsigned int rather than unsigned char.
        * config/arm/arm.c (arm_vectorize_vec_perm_const_ok): Likewise.

2017-09-25  Richard Biener  <rguenther@suse.de>

        * cfgloop.h (sort_sibling_loops): Declare.
        * cfgloop.c (sort_sibling_loops_cmp): New helper.
        (sort_sibling_loops): New function sorting the sibling loop list
        in RPO order.
        * graphite.c (graphite_transform_loops): Sort sibling loops.

2017-09-25  Richard Sandiford  <richard.sandifird@linaro.org>

        * target.def (vec_perm_const_ok): Change sel parameter to
        vec_perm_indices.
        * optabs-query.c (can_vec_perm_p): Update accordingly.
        * doc/tm.texi: Regenerate.
        * config/aarch64/aarch64.c (expand_vec_perm_d): Change perm to
        auto_vec_perm_indices and remove separate nelt field.
        (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_zip)
        (aarch64_evpc_ext, aarch64_evpc_rev, aarch64_evpc_dup)
        (aarch64_evpc_tbl, aarch64_expand_vec_perm_const_1)
        (aarch64_expand_vec_perm_const): Update accordingly.
        (aarch64_vectorize_vec_perm_const_ok): Likewise.  Change sel
        to vec_perm_indices.
        * config/arm/arm.c (expand_vec_perm_d): Change perm to
        auto_vec_perm_indices and remove separate nelt field.
        (arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev)
        (arm_evpc_neon_vtrn, arm_evpc_neon_vext, arm_evpc_neon_vtbl)
        (arm_expand_vec_perm_const_1, arm_expand_vec_perm_const): Update
        accordingly.
        (arm_vectorize_vec_perm_const_ok): Likewise.  Change sel
        to vec_perm_indices.
        * config/i386/i386.c (ix86_vectorize_vec_perm_const_ok): Change
        sel to vec_perm_indices.
        * config/ia64/ia64.c (ia64_vectorize_vec_perm_const_ok): Likewise.
        * config/mips/mips.c (mips_vectorize_vec_perm_const_ok): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_vectorize_vec_perm_const_ok):
        Likewise.
        * config/rs6000/rs6000.c (rs6000_vectorize_vec_perm_const_ok):
        Likewise.

2017-09-25  Pierre-Marie de Rodat  <derodat@adacore.com>

        PR debug/82155
        * dwarf2out.c (dwarf2out_early_global_decl): Call dwarf2out_decl
        on the FUNCTION_DECL function context if it has a DIE that is a
        declaration.

2017-09-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82285
        * tree-vect-patterns.c (vect_recog_bool_pattern): Also handle
        enumeral types.

2017-09-25  Tom de Vries  <tom@codesourcery.com>

        PR target/80035
        PR target/81069
        * config/nvptx/nvptx.c (nvptx_output_call_insn): Add exit after call to
        noreturn function.

2017-09-25  Richard Biener  <rguenther@suse.de>

        * graphite-optimize-isl.c (optimize_isl): Fail and dump if
        ISL errors other than isl_error_quota happen.  Dump if the
        schedule is the same.
        * graphite-sese-to-poly.c (build_poly_scop): Fail on ISL
        errors instead of aborting inside ISL.

2017-09-25  Iain Sandoe  <iain@codesourcery.com>

        PR target/80556
        * config/i386/darwin.h (REAL_LIB_SPEC): New; put libSystem ahead
        of libgcc_eh for m64.
        * config/i386/darwin64.h: Likewise.

2017-09-25  Richard Biener  <rguenther@suse.de>

        PR middle-end/82144
        * dwarf2out.c (gen_enumeration_type_die): Do not add alignment
        attribute for incomplete types nor twice for complete ones.

2017-09-24  Uros Bizjak  <ubizjak@gmail.com>

        PR target/82267
        * config/i386/i386.c (ix86_print_operand_address_as): Encode
        %esp as %rsp to avoid 0x67 prefix if there is no index or base
        register.

2017-09-23  Uros Bizjak  <ubizjak@gmail.com>

        PR bootstrap/82306
        * config/i386/i386.opt (mprefer-avx256): Use
        ix86_target_flags variable.
        * config/i386/i386.c (ix86_target_string): Move
        -mprefer-avx256 to flag2_opts.

2017-09-22  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/35691
        * match.pd: Simplify x == -1 & y == -1 into (x & y) == -1
        and x != -1 | y != -1 into (x & y) != -1.

2017-09-22  Steve Ellcey  <sellcey@cavium.com>

        * config.gcc: Add new case statement to set
        default_gnu_indirect_function.  Remove it from x86_64-*-linux*,
        i[34567]86-*, powerpc*-*-linux*spe*, powerpc*-*-linux*, s390-*-linux*,
        s390x-*-linux* case statements.   Added aarch64 to the list of
        supported architectures.

2017-09-22  Richard Sandiford  <richard.sandiford@linaro.org>

        PR tree-optimization/82289
        * tree-vect-data-refs.c (vect_get_peeling_costs_all_drs): Check
        STMT_VINFO_RELEVANT_P.

2017-09-22  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vrp.c (extract_range_from_multiplicative_op_1): Assert
        for VR_RANGE only; don't allow VR_ANTI_RANGE.
        (extract_range_from_binary_expr_1): Don't call
        extract_range_from_multiplicative_op_1 if !range_int_cst_p.

2017-09-22  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (preferred_vector_alignment): New hook.
        * doc/tm.texi.in (TARGET_VECTORIZE_PREFERRED_VECTOR_ALIGNMENT): New
        hook.
        * doc/tm.texi: Regenerate.
        * targhooks.h (default_preferred_vector_alignment): Declare.
        * targhooks.c (default_preferred_vector_alignment): New function.
        * tree-vectorizer.h (dataref_aux): Add a target_alignment field.
        Expand commentary.
        (DR_TARGET_ALIGNMENT): New macro.
        (aligned_access_p): Update commentary.
        (vect_known_alignment_in_bytes): New function.
        * tree-vect-data-refs.c (vect_calculate_required_alignment): New
        function.
        (vect_compute_data_ref_alignment): Set DR_TARGET_ALIGNMENT.
        Calculate the misalignment based on the target alignment rather than
        the vector size.
        (vect_update_misalignment_for_peel): Use DR_TARGET_ALIGMENT
        rather than TYPE_ALIGN / BITS_PER_UNIT to update the misalignment.
        (vect_enhance_data_refs_alignment): Mask the byte misalignment with
        the target alignment, rather than masking the element misalignment
        with the number of elements in a vector.  Also use the target
        alignment when calculating the maximum number of peels.
        (vect_find_same_alignment_drs): Use vect_calculate_required_alignment
        instead of TYPE_ALIGN_UNIT.
        (vect_duplicate_ssa_name_ptr_info): Remove stmt_info parameter.
        Measure DR_MISALIGNMENT relative to DR_TARGET_ALIGNMENT.
        (vect_create_addr_base_for_vector_ref): Update call accordingly.
        (vect_create_data_ref_ptr): Likewise.
        (vect_setup_realignment): Realign by ANDing with
        -DR_TARGET_MISALIGNMENT.
        * tree-vect-loop-manip.c (vect_gen_prolog_loop_niters): Calculate
        the number of peels based on DR_TARGET_ALIGNMENT.
        * tree-vect-stmts.c (get_group_load_store_type): Compare the gap
        with the guaranteed alignment boundary when deciding whether
        overrun is OK.
        (vectorizable_mask_load_store): Interpret DR_MISALIGNMENT
        relative to DR_TARGET_ALIGNMENT instead of TYPE_ALIGN_UNIT.
        (ensure_base_align): Remove stmt_info parameter.  Get the
        target base alignment from DR_TARGET_ALIGNMENT.
        (vectorizable_store): Update call accordingly.   Interpret
        DR_MISALIGNMENT relative to DR_TARGET_ALIGNMENT instead of
        TYPE_ALIGN_UNIT.
        (vectorizable_load): Likewise.

2017-09-22  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vectorizer.h (vect_get_scalar_dr_size): New function.
        * tree-vect-data-refs.c (vect_update_misalignment_for_peel): Use it.
        (vect_enhance_data_refs_alignment): Likewise.

2017-09-22  Richard Earnshaw  <richard.earnshaw@arm.com>

        * config/arm/parsecpu.awk (fatal): Note that we've encountered an
        error.  Only quit immediately if parsing is complete.
        (BEGIN): Initialize fatal_err and parse_done.
        (begin fpu, end fpu): Check number of arguments.
        (begin arch, end arch): Likewise.
        (begin cpu, end cpu): Likewise.
        (cname, tune for, tune flags, architecture, fpu, option): Likewise.
        (optalias): Likewise.

2017-09-22  Richard Earnshaw  <richard.earnshaw@arm.com>

        * config.gcc (arm*-*-*): Don't add arm-isa.h to tm_p_file.
        * config/arm/arm-isa.h: Delete.  Move definitions to ...
        * arm-cpus.in: ... here.  Use new feature and fgroup values.
        * config/arm/arm.c (arm_option_override): Use lower case for feature
        bit names.
        * config/arm/arm.h (TARGET_HARD_FLOAT): Likewise.
        (TARGET_VFP3, TARGET_VFP5, TARGET_FMA): Likewise.
        * config/arm/parsecpu.awk (END): Add new command 'isa'.
        (isa_pfx): Delete.
        (print_isa_bits_for): New function.
        (gen_isa): New function.
        (gen_comm_data): Use print_isa_bits_for.
        (define feature): New keyword.
        (define fgroup): New keyword.
        * config/arm/t-arm (TM_H): Remove.
        (GTM_H): Add arm-isa.h.
        (arm-isa.h): Add rule to generate file.
        * common/config/arm/arm-common.c: (arm_canon_arch_option): Use lower
        case for feature bit names.

2017-09-22  Richard Biener  <rguenther@suse.de>

        * graphite-isl-ast-to-gimple.c (graphite_verify): Inline into
        single caller.
        (graphite_regenerate_ast_isl): Do not reset SCEV.  Move debug
        print of no dependency loops ...
        * graphite.c (graphite_transform_loops): ... here.
        (canonicalize_loop_closed_ssa_form): Work from inner to outer
        loops.
        (same_close_phi_node, remove_duplicate_close_phi,
        make_close_phi_nodes_unique, defined_in_loop_p): Fold into ...
        (canonicalize_loop_closed_ssa): ... here and simplify.
        * graphite-optimize-isl.c: Include tree-vectorizer.h.
        (optimize_isl): Use dump_printf_loc to tell when we stopped
        optimizing because of an ISL timeout.

2017-09-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82291
        * tree-if-conv.c (predicate_mem_writes): Make sure to
        remove writes in blocks predicated with false.

2017-09-22  Richard Biener  <rguenther@suse.de>

        * sese.c: Include cfganal.h.
        (if_region_set_false_region): Remove.
        (create_if_region_on_edge): Likewise.
        (move_sese_in_condition): Re-implement without destroying
        dominators.

2017-09-22  Richard Biener  <rguenther@suse.de>

        * graphite-isl-ast-to-gimple.c (translate_pending_phi_nodes):
        Verify both BBs contain loop PHI nodes before dispatching to
        copy_loop_phi_args.
        (graphite_regenerate_ast_isl): Do not recompute dominators,
        do not verify three times.  Restructure for clarity.
        * graphite-scop-detection.c (same_close_phi_node,
        remove_duplicate_close_phi, make_close_phi_nodes_unique,
        defined_in_loop_p, canonicalize_loop_closed_ssa,
        canonicalize_loop_closed_ssa_form): Simplify, remove excess
        checking and SSA rewrite, move to ...
        * graphite.c: ... here.  Include ssa.h and tree-ssa-loop-manip.h.
        (graphite_initialize): Do not pass in ctx, do not reset the
        SCEV cache, compute only dominators.
        (graphite_transform_loops): Allocate ISL ctx after
        graphite_initialize.  Call canonicalize_loop_closed_ssa_form.
        Maintain post-dominators only around build_scops.
        * sese.c (if_region_set_false_region): Make static.  Free
        and recompute dominators.
        (move_sese_in_condition): Assert we don't get called with
        post-dominators computed.
        * sese.h (if_region_set_false_region): Remove.

2017-09-22  Sergey Shalnov  <sergey.shalnov@intel.com>

        * config/i386/sse.md ("mov<mode>_internal"): Use <sseinsnmode>
        mode attribute for TARGET_AVX512VL.

2017-09-21  Sergey Shalnov  <sergey.shalnov@intel.com>

        * config/i386/i386.opt (mprefer-avx256): New option.
        * config/i386/i386.c (ix86_target_string): Add -mprefer-avx256
        to flag_opts.
        (ix86_preferred_simd_mode): Return 256-bit AVX modes
        for TARGET_PREFER_AVX256.
        * doc/invoke.texi (x86 Options): Document -mprefer-avx256.

2017-09-21  Jeff Law  <law@redhat.com>

        * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash):
        Fix dump output if the only stack space is for pushed registers.

2017-09-21  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/spu/spu.c (spu_sched_adjust_cost): Update after renaming
        of insn_cost.

2017-09-21  Martin Sebor  <msebor@redhat.com>

        PR c/81882
        * doc/extend.texi (attribute ifunc): Avoid relying on ill-formed
        code (in C++) or code that triggers warnings.

2017-09-21  Eric Botcazou  <ebotcazou@adacore.com>

        * stor-layout.c (bit_from_pos): Do not distribute the conversion.

2017-09-21  Segher Boessenkool  <segher@kernel.crashing.org>

        * haifa-sched.c: Rename insn_cost to insn_sched_cost.
        * sched-rgn.c: Ditto.
        * sel-sched-ir.c: Ditto.

2017-09-21  Alexander Monakov  <amonakov@ispras.ru>

        * toplev.h (set_random_seed): Adjust return type.
        * toplev.c (init_local_tick): Move eager initialization of random_seed
        to get_random_seed.  Adjust comment.
        (init_random_seed): Inline to get_random_seed, delete.
        (get_random_seed): Initialize random_seed lazily.
        (set_random_seed): Do not return previous value.
        (print_switch_value): Do not call get_random_seed.

2017-09-21  Evgeny Kudryashov  <kudryashov@ispras.ru>

        * cgraph.c (delete_function_version): New, broken out from...
        (cgraph_node::delete_function_version): ...here.  Rename to
        cgraph_node::delete_function_version_by_decl.  Update all uses.
        (cgraph_node::remove): Call delete_function_version.

2017-09-21  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/81715
        * tree-inline.c (expand_call_inline): Emit clobber stmts for
        VAR_DECLs to which addressable non-volatile parameters are mapped
        and for id->retvar after the return value assignment.  Clear
        id->retval and id->retbnd after inlining.

2017-09-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82276
        PR tree-optimization/82244
        * tree-vrp.c (build_assert_expr_for): Set
        SSA_NAME_OCCURS_IN_ABNORMAL_PHI if the variable we assert on
        has it set.
        (remove_range_assertions): Revert earlier change.

2017-09-21  Wilco Dijkstra  <wdijkstr@arm.com>

        PR target/71951
        * config/aarch64/aarch64.h (LIBGCC2_UNWIND_ATTRIBUTE): Define.

2017-09-21  Richard Biener  <rguenther@suse.de>

        * graphite-isl-ast-to-gimple.c (graphite_regenerate_ast_isl):
        Restore valid IL after code generation errors.
        * graphite.c (graphite_transform_loops): Diagnose code
        generation issues as MSG_MISSED_OPTIMIZATION and continue
        with processing SCOPs.

2017-09-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * calls.c (compute_argument_addresses): Use simplify_gen_binary
        rather than choosing between plus_constant and gen_rtx_<CODE>.
        * expr.c (emit_push_insn): Likewise.
        (expand_expr_real_2): Likewise.

2017-09-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * loop-unroll.c (split_iv): Call copy_rtx on the step.

2017-09-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree.c (find_atomic_core_type): Check tree_fits_uhwi_p before
        calling tree_to_uhwi.

2017-09-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-ssa-ccp.c (get_value_for_expr): Use a positive test for
        INTEGER_CST rather than a negative test for ADDR_EXPR.

2017-09-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vrp.c (extract_range_from_binary_expr_1): Check
        int_cst_rangeN before calling value_range_constant_singleton (&vrN).

2017-09-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71351
        * graphite-isl-ast-to-gimple.c (translate_isl_ast_to_gimple::
        graphite_create_new_loop_guard): Remove, fold remaining parts
        into caller ...
        (translate_isl_ast_node_for): ... here and simplify.

2017-09-21  Jakub Jelinek  <jakub@redhat.com>

        PR target/82260
        * config/i386/i386.md (*movqi_internal): Replace (=q,q) alternative
        with (=Q,Q), (=R,R) and (=r,r) alternatives, only enable the
        latter two for 64-bit, renumber alternatives, for -Os imov (=q,n)
        alternative always use QI mode, for -Os imov (=R,R) alternative
        always use SI mode, for imov (=Q,Q) or (=r,r) alternatives
        ignore -Os.

2017-09-20  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
            Jeff Law  <law@redhat.com>

        * config/s390/s390.c (MIN_UNROLL_PROBES): Define.
        (allocate_stack_space): New function, partially extracted from
        s390_emit_prologue.
        (s390_emit_prologue): Track offset to most recent stack probe.
        Code to allocate space moved into allocate_stack_space.
        Dump actions when no stack is allocated.
        (s390_prologue_plus_offset): New function.
        (s390_emit_stack_probe): Likewise.

2017-09-20  Alexandre Oliva  <aoliva@redhat.com>

        * common.opt (Wa, Wl, Wp, g, gz=): Add
        RejectNegative.
        (gno-column-info): Remove.
        (gcolumn-info): Drop RejectNegative.
        (gno-): New prefix.
        (gno-record-gcc-switches): Remove.
        (grecord-gcc-switches): Drop RejectNegative.
        (gno-split-dwarf): Remove.
        (gsplit-dwarf): Drop RejectNegative.
        (gno-strict-dwarf): Remove.
        (gstrict-dwarf): Drop RejectNegative.
        * config/darwin.opt (gfull, gused): Add RejectNegative.
        * dwarf2out.c (gen_producer_string): Drop
        gno-record-gcc-switches handler.
        * optc-gen.awk: Add g to prefixes with negative forms.
        * opts-common.c (remapping_prefix_p): New.
        (find_opt): Check it.
        (generate_canonical_option): Test g prefix.
        (option_map): Add -gno- mapping.
        (add_misspelling_candidates): Check remapping_prefix_p.

2017-09-20  Jeff Law  <law@redhat.com>

        * config/powerpcspe/powerpcspe.c (rs6000_expand_prologue): Fix
        thinko in stack clash protection support.

        * explow.c (compute_stack_clash_protection_loop_data): Use
        CONST_INT_P instead of explicit test.  Verify object is a
        CONST_INT_P before looking at INTVAL.
        (anti_adjust_stack_and_probe_stack_clash): Use CONST_INT_P
        instead of explicit test.

2017-09-20  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/77687
        * config/rs6000/rs6000.md (stack_restore_tie): Store to a scratch
        address instead of to r1 and r11.

2017-09-20  Sebastian Peryt  <sebastian.peryt@intel.com>

        * config.gcc: Support "knm".
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect "knm".
        * config/i386/i386-c.c (ix86_target_macros_internal): Handle
        PROCESSOR_KNM.
        * config/i386/i386.c (m_KNM): Define.
        (processor_target_table): Add "knm".
        (PTA_KNM): Define.
        (ix86_option_override_internal): Add "knm".
        (ix86_issue_rate): Add PROCESSOR_KNM.
        (ix86_adjust_cost): Ditto.
        (ia32_multipass_dfa_lookahead): Ditto.
        (get_builtin_code_for_version): Handle PROCESSOR_KNM.
        (fold_builtin_cpu): Add M_INTEL_KNM.
        * config/i386/i386.h (processor_costs): Define TARGET_KNM.
        (processor_type): Add PROCESSOR_KNM.
        * config/i386/x86-tune.def: Add m_KNM.
        * doc/invoke.texi: Add knm as x86 -march=/-mtune= CPU type.

2017-09-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80213
        * graphite-scop-detection.c (trivially_empty_bb_p): Labels
        are allowed in empty BBs as well.
        (canonicalize_loop_closed_ssa): Also look for other complex
        edges.
        (scop_detection::get_sese): Include the loop-closed PHI block
        in loop SESEs.
        (scop_detection::merge_sese): Remove code adding extra blocks.
        (scop_detection::region_has_one_loop): Adjust for get_sese changes.
        (build_scops): Assert the final returned scop is invalid.

2017-09-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82264
        * tree-ssa-sccvn.c (vn_phi_eq): Use safe_dyn_cast to check
        for GIMPLE_CONDs.
        (vn_phi_lookup): Likewise.
        (vn_phi_insert): Likewise.

2017-09-20  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (tree_add_const_value_attribute): For INTEGER_CST
        that fits into uhwi or shwi, add DW_AT_const_value regardless
        of early_dwarf without going through RTL, using add_AT_unsigned
        or add_AT_int.

        * dwarf2out.c (DEBUG_LTO_DWO_INFO_SECTION): Reorder defines.
        (DEBUG_LTO_ABBREV_SECTION): Likewise.
        (DEBUG_LTO_MACINFO_SECTION): Likewise.
        (DEBUG_MACRO_SECTION): Likewise.
        (DEBUG_LTO_MACRO_SECTION): Likewise.
        (DEBUG_STR_DWO_SECTION): Likewise.
        (DEBUG_LTO_STR_DWO_SECTION): Likewise.
        (DEBUG_LTO_LINE_SECTION): Drop .dwo suffix from the name.
        (DEBUG_LTO_DWO_LINE_SECTION): Define.
        (DEBUG_LTO_LINE_STR_SECTION): Define.
        (init_sections_and_labels): Initialize debug_line_str_section
        variable.  Initialize debug_loc_section for -gdwarf-5 to
        DEBUG_LOCLISTS_SECTION.  Formatting fixes.

2017-09-20  Richard Biener  <rguenther@suse.de>

        * graphite-sese-to-poly.c (extract_affine): Properly handle
        POINTER_PLUS_EXPR, BIT_NOT_EXPR and conversion to signed.

2017-09-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81373
        * graphite-scop-detection.c (build_cross_bb_scalars_def):
        Force SESE live-out defs to be handled even if they are
        scev_analyzable_p.

2017-09-19  Jeff Law  <law@redhat.com>

        * combine-stack-adj.c (combine_stack_adjustments_for_block): Do
        nothing for stack adjustments with REG_STACK_CHECK.
        * sched-deps.c (parse_add_or_inc): Reject insns with
        REG_STACK_CHECK from dependency breaking.
        * config/i386/i386.c (pro_epilogue_adjust_stack): Return insn.
        (ix86_adjust_satck_and_probe_stack_clash): Add REG_STACK_NOTEs.
        * reg-notes.def (STACK_CHECK): New note.

        * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): New.
        (ix86_expand_prologue): Dump stack clash info as needed.
        Call ix86_adjust_stack_and_probe_stack_clash as needed.

        * function.c (dump_stack_clash_frame_info): New function.
        * function.h (dump_stack_clash_frame_info): Prototype.
        (enum stack_clash_probes): New enum.

        * config/alpha/alpha.c (alpha_expand_prologue): Also check
        flag_stack_clash_protection.
        * config/arm/arm.c (arm_compute_static_chain_stack_bytes): Likewise.
        (arm_expand_prologue, thumb1_expand_prologue): Likewise.
        (arm_frame_pointer_required): Likewise.
        * config/ia64/ia64.c (ia64_compute_frame_size): Likewise.
        (ia64_expand_prologue): Likewise.
        * config/mips/mips.c (mips_expand_prologue): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_expand_prologue): Likewise.
        * config/sparc/sparc.c (sparc_expand_prologue): Likewise.
        (sparc_flat_expand_prologue): Likewise.
        * config/spu/spu.c (spu_expand_prologue): Likewise.

        * explow.c: Include "params.h".
        (anti_adjust_stack_and_probe_stack_clash): New function.
        (get_stack_check_protect): Likewise.
        (compute_stack_clash_protection_loop_data): Likewise.
        (emit_stack_clash_protection_loop_start): Likewise.
        (emit_stack_clash_protection_loop_end): Likewise.
        (allocate_dynamic_stack_space): Use get_stack_check_protect.
        Use anti_adjust_stack_and_probe_stack_clash.
        * explow.h (compute_stack_clash_protection_loop_data): Prototype.
        (emit_stack_clash_protection_loop_start): Likewise.
        (emit_stack_clash_protection_loop_end): Likewise.
        * rtl.h (get_stack_check_protect): Prototype.
        * target.def (stack_clash_protection_final_dynamic_probe): New hook.
        * targhooks.c (default_stack_clash_protection_final_dynamic_probe): New.
        * targhooks.h (default_stack_clash_protection_final_dynamic_probe):
        Prototype.
        * doc/tm.texi.in (TARGET_STACK_CLASH_PROTECTION_FINAL_DYNAMIC_PROBE):
        Add @hook.
        * doc/tm.texi: Rebuilt.
        * config/aarch64/aarch64.c (aarch64_expand_prologue): Use
        get_stack_check_protect.
        * config/alpha/alpha.c (alpha_expand_prologue): Likewise.
        * config/arm/arm.c (arm_expand_prologue): Likewise.
        (arm_frame_pointer_required): Likewise.
        * config/i386/i386.c (ix86_expand_prologue): Likewise.
        * config/ia64/ia64.c (ia64_expand_prologue): Likewise.
        * config/mips/mips.c (mips_expand_prologue): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_emit_prologue): Likewise.
        * config/rs6000/rs6000.c (rs6000_emit_prologue): Likewise.
        * config/sparc/sparc.c (sparc_expand_prologue): Likewise.
        (sparc_flat_expand_prologue): Likewise.

        * common.opt (-fstack-clash-protection): New option.
        * flag-types.h (enum stack_check_type): Note difference between
        -fstack-check= and -fstack-clash-protection.
        * params.def (PARAM_STACK_CLASH_PROTECTION_GUARD_SIZE): New PARAM.
        (PARAM_STACK_CLASH_PROTECTION_PROBE_INTERVAL): Likewise.
        * toplev.c (process_options): Issue warnings/errors for cases
        not handled with -fstack-clash-protection.
        * doc/invoke.texi (-fstack-clash-protection): Document new option.
        (-fstack-check): Note additional problem with -fstack-check=generic.
        Note that -fstack-check is primarily for Ada and refer users
        to -fstack-clash-protection for stack-clash-protection.
        Document new params for stack clash protection.

2017-09-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_split_long_move): Do not handle
        address used for LEA in a special way.

2017-09-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * simplify-rtx.c (simplify_binary_operation_1): Fix typo in comment.

2017-09-19  Martin Sebor  <msebor@redhat.com>

        PR c/81854
        * cgraphunit.c (handle_alias_pairs): Reject aliases between functions
        of incompatible types.

2017-09-19  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add handling
        for early folding of vector loads (ALTIVEC_BUILTIN_LVX_*).
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        Remove obsoleted code for handling ALTIVEC_BUILTIN_VEC_LD.

2017-09-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82244
        * tree-vrp.c (remove_range_assertions): Do not propagate
        a constant to abnormals but replace the assert with a copy.

2017-09-19  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/57878
        PR rtl-optimization/68988
        * lra-assigns.c (reload_pseudo_compare_func): Remove fragmentation
        avoidance test involving non_reload_pseudos.  Move frequency test
        below the general fragmentation avoidance test.

2017-09-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69728
        * graphite-sese-to-poly.c (schedule_error): New global.
        (add_loop_schedule): Handle empty domain by failing the
        schedule.
        (build_original_schedule): Handle schedule_error.

2017-09-19  Richard Biener  <rguenther@suse.de>

        * graphite-scop-detection.c (scop_detection::can_represent_loop):
        Do not iterate to sibling loops but only to siblings of inner
        loops.

2017-09-18  Andreas Schwab  <schwab@linux-m68k.org>

        PR target/81613
        * config/m68k/m68k.md (moveq feeding equality comparison): Check
        that the registers are different.

2017-09-18  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (fold_builtin_cpu): Add M_AMDFAM17H
        to processor_model and "amdfam17h" to arch_names_table.
        * doc/extend.texi (__builtin_cpu_is): Document amdfam17h CPU name.

2017-09-18  Jakub Jelinek  <jakub@redhat.com>

        PR c/82234
        * doc/extend.texi: Add @findex entry for __builtin_shuffle.

2017-09-18  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vectorizer.h (vect_slp_analyze_operations): Replace parameters
        with a vec_info *.
        * tree-vect-loop.c (vect_analyze_loop_operations): Update call
        accordingly.
        * tree-vect-slp.c (vect_slp_analyze_node_operations): Add vec_info *
        parameter.  Set SLP_TREE_NUMBER_OF_VEC_STMTS here rather than in
        vect_schedule_slp_instance.
        (vect_slp_analyze_operations): Replace parameters with a vec_info *.
        Update call to vect_slp_analyze_node_operations.  Simplify return
        value.
        (vect_slp_analyze_bb_1): Update call accordingly.
        (vect_schedule_slp_instance): Remove vectorization_factor parameter.
        Don't calculate SLP_TREE_NUMBER_OF_VEC_STMTS here.
        (vect_schedule_slp): Update call accordingly.

2017-09-18  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-data-refs.c (vect_get_smallest_scalar_type): Cope
        with types that aren't in fact scalar.

2017-09-18  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-vect-slp.c (vect_record_max_nunits): New function,
        split out from...
        (vect_build_slp_tree_1): ...here.
        (vect_build_slp_tree_2): Call it for phis too.

2017-09-18  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-vect-stmts.c (vectorizable_mask_load_store): Pass mask_vectype
        to vect_get_vec_def_for_operand when getting the mask operand.

2017-09-18  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-loop.c (vectorizable_live_operation): Fix type of
        bitstart.

2017-09-18  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-loop.c (vectorizable_live_operation): Fix element size
        calculation for vector booleans.

2017-09-18  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-stmts.c (can_vectorize_live_stmts): New function,
        split out from...
        (vect_transform_stmt): ...here.
        (vect_analyze_stmt): Use it instead of calling
        vectorizable_live_operation directly.

2017-09-18  Cesar Philippidis  <cesar@codesourcery.com>

        * omp-offload.c (oacc_xform_loop): Enable SIMD vectorization on
        non-SIMT targets in acc vector loops.

2017-09-18  Claudiu Zissulescu  <claziss@synopsys.com>

        * configure.ac: Add arc and check if assembler supports gdwarf2.
        * configure: Regenerate.

2017-09-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82220
        * tree-vect-loop.c (vect_estimate_min_profitable_iters): Exclude
        epilogue niters from the min_profitable_iters compute.

2017-09-18  Jakub Jelinek  <jakub@redhat.com>

        PR target/82145
        * config/i386/i386.c (ix86_init_large_pic_reg): Revert 2017-09-01
        changes.  Turn CODE_LABEL into NOTE_INSN_DELETED_LABEL immediately.
        (ix86_init_pic_reg): Revert 2017-09-01 changes.

2017-09-18  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/81361
        * dwarf2cfi.c (add_cfis_to_fde): Do not generate DW_CFA_set_loc after
        switching to a new text section.

2017-09-18  Richard Biener  <rguenther@suse.de>

        * graphite-scop-detection.c (scop_detection::stmt_has_simple_data_ref):
        Simplify.
        (build_alias_set): Reject aliases with no access function.

2017-09-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79622
        * graphite-scop-detection.c (build_cross_bb_scalars_def): Properly
        handle PHIs.
        (build_cross_bb_scalars_use): Likewise.

2017-09-18  Pierre-Marie de Rodat  <derodat@adacore.com>

        * cgraph.h (cgraph_thunk_info): Fix a typo in a comment.

2017-09-18  Alan Modra  <amodra@gmail.com>

        PR target/81996
        * gcc/config/rs6000/rs6000.c (rs6000_return_addr): Use
        stack_pointer_rtx for count 0.  Update comments.  Break up
        large rtl expression.

2017-09-17  Daniel Santos  <daniel.santos@pobox.com>

        * config/i386/i386.c (xlogue_layout::STUB_NAME_MAX_LEN):
        Increase to 20 bytes.
        (xlogue_layout::s_stub_names): Add an additional size-2 diminsion.
        (xlogue_layout::get_stub_name): Modify to select the appropairate sse
        or avx version of the stub.

2017-09-17  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/82166
        * config/i386/i386.c (ix86_finalize_stack_frame_flags): Properly
        compute the minimum stack alignment.  Also update preferred stack
        boundary for leaf functions.

2017-09-16  Richard Sandiford  <richard.sandiford@linaro.org>

        PR tree-optimization/82228
        * tree-vect-loop.c (vectorizable_live_operation): Move initialization
        of ncopies.

2017-09-16  Chung-Ju Wu  <jasonwucj@gmail.com>

        * common/config/nds32/nds32-common.c
        (nds32_option_optimization_table): Refine formatting.
        (nds32_option_optimization_table): Use -fsched-pressure and
        -fomit-frame-pointer for specific optimization level.

2017-09-16  Chung-Ju Wu  <jasonwucj@gmail.com>

        * config/nds32/nds32.c: Refine formatting and comments.
        * config/nds32/nds32.h: Likewise.
        * config/nds32/nds32.md: Likewise.
        * config/nds32/nds32-cost.c: Likewise.
        * config/nds32/nds32-isr.c: Likewise.
        * config/nds32/nds32-md-auxiliary.c: Likewise.
        * config/nds32/nds32-multiple.md: Likewise.
        * config/nds32/nds32-predicates.c: Likewise.

2017-09-15  Andrew Sutton  <andrew.n.sutton@gmail.com>
            Jakub Jelinek  <jakub@redhat.com>

        Add support for -std=c++2a.
        * doc/cpp.texi (__cplusplus): Document value for -std=c++2a
        or -std=gnu+2a.
        * doc/invoke.texi: Document -std=c++2a and -std=gnu++2a.

2017-09-15  Steve Ellcey  <sellcey@cavium.com>

        PR target/82066
        * doc/extend.texi (Common Function Attributes): Add 
        references to ARM, AArch64, and S/390 specific attributes.
        (Function Specific Option Pragmas): Add AArch64 and S/390
        to list of back ends that support the target pragma.

2017-09-15  Nathan Sidwell  <nathan@acm.org>

        * doc/standards.texi: Fix C++17 description.  Update URLs for
        C++11 & 14.

2017-09-15  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * common.opt (Wcast-align=strict): New warning option.
        * doc/invoke.texi: Document -Wcast-align=strict. 

2017-09-15  Pierre-Marie de Rodat  <derodat@adacore.com>

        * cgraph.h (cgraph_thunk_info): Add comments.
        * cgraph.c (cgraph_node::create_thunk): Adjust comment, make
        assert for VIRTUAL_* arguments stricter.

2017-09-15  Jackson Woodruff  <jackson.woodruff@arm.com>

        PR tree-optimization/71026
        * match.pd: Move RDIV patterns from fold-const.c
        * fold-const.c (distribute_real_division): Removed.
        (fold_binary_loc): Remove calls to distribute_real_divison.

2017-09-15  Jakub Jelinek  <jakub@redhat.com>

        * doc/invoke.texi: Document -std=c++17 and -std=gnu++17 and document
        c++1z and gnu++1z as deprecated.  Change other references to
        -std=c++1z to -std=c++17 and -std=gnu++1z to -std=gnu++17.
        Change -Wc++1z-compat to -Wc++17-compat.
        * doc/cpp.texi: Document -std=c++17 defines __cplusplus 201703L.
        * dwarf2out.c (highest_c_language): Handle C++17.
        (gen_compile_unit_die): Likewise.

2017-09-15  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/82192
        * combine.c (make_extraction): Don't look through non-paradoxical
        SUBREGs or TRUNCATE if pos + len is or might be bigger than
        inner's mode.

2017-09-15  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (function_arg_offset): New hook.
        * targhooks.h (default_function_arg_offset): Declare.
        * targhooks.c (default_function_arg_offset): New function.
        * function.c (locate_and_pad_parm): Use
        targetm.calls.function_arg_offset instead of FUNCTION_ARG_OFFSET.
        * doc/tm.texi.in (FUNCTION_ARG_OFFSET): Replace with...
        (TARGET_FUNCTION_ARG_OFFSET): ...this.
        * doc/tm.texi: Regenerate.
        * config/spu/spu.h (FUNCTION_ARG_OFFSET): Delete.
        * config/spu/spu.c (spu_function_arg_offset): New function.
        (TARGET_FUNCTION_ARG_OFFSET): Redefine.
        * system.h (FUNCTION_ARG_OFFSET): Poison.

2017-09-15  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayard  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (truly_noop_truncation): New hook.
        (mode_rep_extended): Refer to TARGET_TRULY_NOOP_TRUNCATION rather
        than TRULY_NOOP_TRUNCATION.
        * hooks.h (hook_bool_uint_uint_true): Declare.
        * hooks.c (hook_bool_uint_uint_true): New function.
        * doc/tm.texi.in (TRULY_NOOP_TRUNCATION): Replace with...
        (TARGET_TRULY_NOOP_TRUNCATION): ...this.
        * doc/tm.texi: Regenerate.
        * combine.c (make_extraction): Refer to TARGET_TRULY_NOOP_TRUNCATION
        rather than TRULY_NOOP_TRUNCATION in comments.
        (simplify_comparison): Likewise.
        (record_truncated_value): Likewise.
        * expmed.c (extract_bit_field_1): Likewise.
        (extract_split_bit_field): Likewise.
        * convert.c (convert_to_integer_1): Use targetm.truly_noop_truncation
        instead of TRULY_NOOP_TRUNCATION.
        * function.c (assign_parm_setup_block): Likewise.
        * machmode.h (TRULY_NOOP_TRUNCATION_MODES_P): Likewise.
        * rtlhooks.c: Include target.h.
        * config/aarch64/aarch64.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/alpha/alpha.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/arc/arc.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/arm/arm.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/avr/avr.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/bfin/bfin.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/c6x/c6x.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/cr16/cr16.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/cris/cris.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/epiphany/epiphany.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/fr30/fr30.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/frv/frv.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/ft32/ft32.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/h8300/h8300.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/i386/i386.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/ia64/ia64.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/iq2000/iq2000.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/lm32/lm32.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/m32c/m32c.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/m32r/m32r.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/m68k/m68k.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/mcore/mcore.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/microblaze/microblaze.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/mips/mips.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/mips/mips.c (mips_truly_noop_truncation): New function.
        (TARGET_TRULY_NOOP_TRUNCATION): Redefine.
        * config/mips/mips.md: Refer to TARGET_TRULY_NOOP_TRUNCATION
        rather than TRULY_NOOP_TRUNCATION in comments.
        * config/mmix/mmix.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/mn10300/mn10300.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/moxie/moxie.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/msp430/msp430.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/nds32/nds32.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/nios2/nios2.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/nvptx/nvptx.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/pa/pa.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/pdp11/pdp11.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/powerpcspe/powerpcspe.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/riscv/riscv.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/riscv/riscv.md: Refer to TARGET_TRULY_NOOP_TRUNCATION
        rather than TRULY_NOOP_TRUNCATION in comments.
        * config/rl78/rl78.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/rs6000/rs6000.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/rx/rx.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/s390/s390.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/sh/sh.h (MAYBE_BASE_REGISTER_RTX_P): Remove
        TRULY_NOOP_TRUNCATION condition.
        (MAYBE_INDEX_REGISTER_RTX_P): Likewise.
        (TRULY_NOOP_TRUNCATION): Delete.
        * config/sparc/sparc.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/spu/spu.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/spu/spu.c (spu_truly_noop_truncation): New function.
        (TARGET_TRULY_NOOP_TRUNCATION): Redefine.
        * config/stormy16/stormy16.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/tilegx/tilegx.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/tilegx/tilegx.c (tilegx_truly_noop_truncation): New fuction.
        (TARGET_TRULY_NOOP_TRUNCATION): Redefine.
        * config/tilegx/tilegx.md: Refer to TARGET_TRULY_NOOP_TRUNCATION
        rather than TRULY_NOOP_TRUNCATION in comments.
        * config/tilepro/tilepro.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/v850/v850.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/vax/vax.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/visium/visium.h (TRULY_NOOP_TRUNCATION): Delete.
        * config/xtensa/xtensa.h (TRULY_NOOP_TRUNCATION): Delete.
        * system.h (TRULY_NOOP_TRUNCATION): Poison.

2017-09-15  Christophe Lyon  <christophe.lyon@linaro.org>

        PR target/67591
        * config/arm/arm.md (*cmp_and): Add enabled_for_depr_it attribute.
        (*cmp_ior): Likewise.
        (*ior_scc_scc): Add alternative for enabled_for_depr_it attribute.
        (*ior_scc_scc_cmp): Likewise.
        (*and_scc_scc): Likewise.
        (*and_scc_scc_cmp): Likewise.

2017-09-15  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayard  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (can_change_mode_class): New hook.
        (mode_rep_extended): Refer to it instead of CANNOT_CHANGE_MODE_CLASS.
        (hard_regno_nregs): Likewise.
        * hooks.h (hook_bool_mode_mode_reg_class_t_true): Declare.
        * hooks.c (hook_bool_mode_mode_reg_class_t_true): New function.
        * doc/tm.texi.in (CANNOT_CHANGE_MODE_CLASS): Replace with...
        (TARGET_CAN_CHANGE_MODE_CLASS): ...this.
        (LOAD_EXTEND_OP): Update accordingly.
        * doc/tm.texi: Regenerate.
        * doc/rtl.texi: Refer to TARGET_CAN_CHANGE_MODE_CLASS instead of
        CANNOT_CHANGE_MODE_CLASS.
        * hard-reg-set.h (REG_CANNOT_CHANGE_MODE_P): Replace with...
        (REG_CAN_CHANGE_MODE_P): ...this new macro.
        * combine.c (simplify_set): Update accordingly.
        * emit-rtl.c (validate_subreg): Likewise.
        * recog.c (general_operand): Likewise.
        * regcprop.c (mode_change_ok): Likewise.
        * reload1.c (choose_reload_regs): Likewise.
        (inherit_piecemeal_p): Likewise.
        * rtlanal.c (simplify_subreg_regno): Likewise.
        * postreload.c (reload_cse_simplify_set): Use REG_CAN_CHANGE_MODE_P
        instead of CANNOT_CHANGE_MODE_CLASS.
        (reload_cse_simplify_operands): Likewise.
        * reload.c (push_reload): Use targetm.can_change_mode_class
        instead of CANNOT_CHANGE_MODE_CLASS.
        (push_reload): Likewise.  Also use REG_CAN_CHANGE_MODE_P instead of
        REG_CANNOT_CHANGE_MODE_P.
        * config/alpha/alpha.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/alpha/alpha.c (alpha_can_change_mode_class): New function.
        (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        * config/arm/arm.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/arm/arm.c (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        (arm_can_change_mode_class): New function.
        * config/arm/neon.md: Refer to TARGET_CAN_CHANGE_MODE_CLASS rather
        than CANNOT_CHANGE_MODE_CLASS in comments.
        * config/i386/i386.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/i386/i386-protos.h (ix86_cannot_change_mode_class): Delete.
        * config/i386/i386.c (ix86_cannot_change_mode_class): Replace with...
        (ix86_can_change_mode_class): ...this new function, inverting the
        sense of the return value.
        (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        * config/ia64/ia64.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/ia64/ia64.c (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        (ia64_can_change_mode_class): New function.
        * config/m32c/m32c.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/m32c/m32c-protos.h (m32c_cannot_change_mode_class): Delete.
        * config/m32c/m32c.c (m32c_cannot_change_mode_class): Replace with...
        (m32c_can_change_mode_class): ...this new function, inverting the
        sense of the return value.
        (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        * config/mips/mips.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/mips/mips-protos.h (mips_cannot_change_mode_class): Delete.
        * config/mips/mips.c (mips_cannot_change_mode_class): Replace with...
        (mips_can_change_mode_class): ...this new function, inverting the
        sense of the return value.
        (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        * config/msp430/msp430.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/msp430/msp430.c (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        (msp430_can_change_mode_class): New function.
        * config/nvptx/nvptx.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/nvptx/nvptx.c (nvptx_can_change_mode_class): New function.
        (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        * config/pa/pa32-regs.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/pa/pa64-regs.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/pa/pa-protos.h (pa_cannot_change_mode_class): Delete.
        * config/pa/pa.c (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        (pa_cannot_change_mode_class): Replace with...
        (pa_can_change_mode_class): ...this new function, inverting the
        sense of the return value.
        (pa_modes_tieable_p): Refer to TARGET_CAN_CHANGE_MODE_CLASS rather
        than CANNOT_CHANGE_MODE_CLASS in comments.
        * config/pdp11/pdp11.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/pdp11/pdp11-protos.h (pdp11_cannot_change_mode_class): Delete.
        * config/pdp11/pdp11.c (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        (pdp11_cannot_change_mode_class): Replace with...
        (pdp11_can_change_mode_class): ...this new function, inverting the
        sense of the return value.
        * config/powerpcspe/powerpcspe.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/powerpcspe/powerpcspe-protos.h
        (rs6000_cannot_change_mode_class_ptr): Delete.
        * config/powerpcspe/powerpcspe.c
        (rs6000_cannot_change_mode_class_ptr): Delete.
        (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        (rs6000_option_override_internal): Assign to
        targetm.can_change_mode_class instead of
        rs6000_cannot_change_mode_class_ptr.
        (rs6000_cannot_change_mode_class): Replace with...
        (rs6000_can_change_mode_class): ...this new function, inverting the
        sense of the return value.
        (rs6000_debug_cannot_change_mode_class): Replace with...
        (rs6000_debug_can_change_mode_class): ...this new function.
        * config/riscv/riscv.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/riscv/riscv.c (riscv_can_change_mode_class): New function.
        (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        * config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/rs6000/rs6000-protos.h (rs6000_cannot_change_mode_class_ptr):
        Delete.
        * config/rs6000/rs6000.c (rs6000_cannot_change_mode_class_ptr): Delete.
        (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        (rs6000_option_override_internal): Assign to
        targetm.can_change_mode_class instead of
        rs6000_cannot_change_mode_class_ptr.
        (rs6000_cannot_change_mode_class): Replace with...
        (rs6000_can_change_mode_class): ...this new function, inverting the
        sense of the return value.
        (rs6000_debug_cannot_change_mode_class): Replace with...
        (rs6000_debug_can_change_mode_class): ...this new function.
        * config/s390/s390.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/s390/s390-protos.h (s390_cannot_change_mode_class): Delete.
        * config/s390/s390.c (s390_cannot_change_mode_class): Replace with...
        (s390_can_change_mode_class): ...this new function, inverting the
        sense of the return value.
        (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        * config/sh/sh.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/sh/sh-protos.h (sh_cannot_change_mode_class): Delete.
        * config/sh/sh.c (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        (sh_cannot_change_mode_class): Replace with...
        (sh_can_change_mode_class): ...this new function, inverting the
        sense of the return value.
        * config/sparc/sparc.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/sparc/sparc.c (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        (sparc_can_change_mode_class): New function.
        * config/spu/spu.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/spu/spu.c (spu_can_change_mode_class): New function.
        (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        * config/visium/visium.h (CANNOT_CHANGE_MODE_CLASS): Delete.
        * config/visium/visium.c (TARGET_CAN_CHANGE_MODE_CLASS): Redefine.
        (visium_can_change_mode_class): New function.
        * system.h (CANNOT_CHANGE_MODE_CLASS): Poison.

2017-09-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82217
        * tree-ssa-sccvn.c (visit_phi): Properly handle all VN_TOP
        but not undefined case.

2017-09-15  Jakub Jelinek  <jakub@redhat.com>

        PR target/82145
        * postreload.c (reload_cse_simplify_operands): Skip
        NOTE_INSN_DELETED_LABEL similarly to skipping CODE_LABEL.

2017-09-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/68823
        * graphite-scop-detection.c (build_alias_set): If we have a
        possible dependence check whether we can handle them by just
        looking at the DRs DR_ACCESS_FNs.
        (build_scops): If build_alias_set fails, fail the SCOP.

2017-09-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-builtin.def (BU_FLOAT128_1_HW): New macros
        to support float128 built-in functions that require the ISA 3.0
        hardware.
        (BU_FLOAT128_3_HW): Likewise.
        (SQRTF128): Add support for the IEEE 128-bit square root and fma
        built-in functions.
        (FMAF128): Likewise.
        (FMAQ): Likewise.
        * config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add
        support for built-in functions that need the ISA 3.0 IEEE 128-bit
        floating point instructions.
        (rs6000_invalid_builtin): Likewise.
        (rs6000_builtin_mask_names): Likewise.
        * config/rs6000/rs6000.h (MASK_FLOAT128_HW): Likewise.
        (RS6000_BTM_FLOAT128_HW): Likewise.
        (RS6000_BTM_COMMON): Likewise.
        * config/rs6000/rs6000.md (fma<mode>4_hw): Add a generator
        function.
        * doc/extend.texi (RS/6000 built-in functions): Document the
        IEEE 128-bit floating point square root and fused multiply-add
        built-in functions.

2017-09-14  Pat Haugen  <pthaugen@us.ibm.com>

        * config/rs6000/rs6000.c (rs6000_set_up_by_prologue): Make sure the TOC
        reg (r2) isn't in the set of registers defined in the prologue.

2017-09-14  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vectorizer.h (_loop_vec_info): Add max_vectorization_factor.
        (LOOP_VINFO_MAX_VECT_FACTOR): New macro.
        (LOOP_VINFO_ORIG_VECT_FACTOR): Replace with...
        (LOOP_VINFO_ORIG_MAX_VECT_FACTOR): ...this new macro.
        * tree-vect-data-refs.c (vect_analyze_data_ref_dependences): Update
        accordingly.
        * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
        max_vectorization_factor.
        (vect_analyze_loop_2): Set LOOP_VINFO_MAX_VECT_FACTOR.

2017-09-14  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vectorizer.h (vect_min_worthwhile_factor): Delete.
        (vect_worthwhile_without_simd_p): Declare.
        * tree-vect-loop.c (vect_worthwhile_without_simd_p): New function.
        (vectorizable_reduction): Use it.
        * tree-vect-stmts.c (vectorizable_shift): Likewise.
        (vectorizable_operation): Likewise.

2017-09-14  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vectorizer.h (vect_get_num_copies): New function.
        * tree-vect-data-refs.c (vect_get_data_access_cost): Use it.
        * tree-vect-loop.c (vectorizable_reduction): Likewise.
        (vectorizable_induction): Likewise.
        (vectorizable_live_operation): Likewise.
        * tree-vect-stmts.c (vectorizable_mask_load_store): Likewise.
        (vectorizable_bswap): Likewise.
        (vectorizable_call): Likewise.
        (vectorizable_conversion): Likewise.
        (vectorizable_assignment): Likewise.
        (vectorizable_shift): Likewise.
        (vectorizable_operation): Likewise.
        (vectorizable_store): Likewise.
        (vectorizable_load): Likewise.
        (vectorizable_condition): Likewise.
        (vectorizable_comparison): Likewise.
        (vect_analyze_stmt): Pass the slp node to vectorizable_live_operation.

2017-09-14  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-vect-loop.c (vectorizable_induction): Use gimple_build instead
        of vect_init_vector.

2017-09-14  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * gimple-fold.h (gimple_build_vector_from_val): Declare, and provide
        an inline wrapper that provides a location.
        (gimple_build_vector): Likewise.
        * gimple-fold.c (gimple_build_vector_from_val): New function.
        (gimple_build_vector): Likewise.
        * tree-vect-loop.c (get_initial_def_for_reduction): Use the new
        functions to build the initial value.  Always return a gimple value.
        (get_initial_defs_for_reduction): Likewise.  Only compute
        neutral_vec once.
        (vect_create_epilog_for_reduction): Don't call force_gimple_operand or
        vect_init_vector on the results from get_initial_def(s)_for_reduction.
        (vectorizable_induction): Use gimple_build_vector rather than
        vect_init_vector.

2017-09-14  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.h (vec_perm_indices): New typedef.
        (auto_vec_perm_indices): Likewise.
        * optabs-query.h: Include target.h
        (can_vec_perm_p): Take a vec_perm_indices *.
        * optabs-query.c (can_vec_perm_p): Likewise.
        (can_mult_highpart_p): Update accordingly.  Use auto_vec_perm_indices.
        * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
        * tree-vect-generic.c (lower_vec_perm): Likewise.
        * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
        (vect_grouped_load_supported): Likewise.
        (vect_shift_permute_load_chain): Likewise.
        (vect_permute_store_chain): Use auto_vec_perm_indices.
        (vect_permute_load_chain): Likewise.
        * fold-const.c (fold_vec_perm): Take vec_perm_indices.
        (fold_ternary_loc): Update accordingly.  Use auto_vec_perm_indices.
        Update uses of can_vec_perm_p.
        * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Replace the
        mode with a number of elements.  Take a vec_perm_indices *.
        (vect_create_epilog_for_reduction): Update accordingly.
        Use auto_vec_perm_indices.
        (have_whole_vector_shift): Likewise.  Update call to can_vec_perm_p.
        * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
        (vect_transform_slp_perm_load): Likewise.
        (vect_schedule_slp_instance): Use auto_vec_perm_indices.
        * tree-vectorizer.h (vect_gen_perm_mask_any): Take a vec_perm_indices.
        (vect_gen_perm_mask_checked): Likewise.
        * tree-vect-stmts.c (vect_gen_perm_mask_any): Take a vec_perm_indices.
        (vect_gen_perm_mask_checked): Likewise.
        (vectorizable_mask_load_store): Use auto_vec_perm_indices.
        (vectorizable_store): Likewise.
        (vectorizable_load): Likewise.
        (perm_mask_for_reverse): Likewise.  Update call to can_vec_perm_p.
        (vectorizable_bswap): Likewise.

2017-09-14  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree.h (build_vector): Take a vec<tree> instead of a tree *.
        * tree.c (build_vector): Likewise.
        (build_vector_from_ctor): Update accordingly.
        (build_vector_from_val): Likewise.
        * gimple-fold.c (gimple_fold_stmt_to_constant_1): Likewise.
        * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
        * tree-vect-generic.c (add_rshift): Likewise.
        (expand_vector_divmod): Likewise.
        (optimize_vector_constructor): Likewise.
        * tree-vect-slp.c (vect_get_constant_vectors): Likewise.
        (vect_transform_slp_perm_load): Likewise.
        (vect_schedule_slp_instance): Likewise.
        * tree-vect-stmts.c (vectorizable_bswap): Likewise.
        (vectorizable_call): Likewise.
        (vect_gen_perm_mask_any): Likewise.  Add elements in order.
        * expmed.c (make_tree): Likewise.
        * fold-const.c (fold_negate_expr_1): Use auto_vec<tree> when building
        a vector passed to build_vector.
        (fold_convert_const): Likewise.
        (exact_inverse): Likewise.
        (fold_ternary_loc): Likewise.
        (fold_relational_const): Likewise.
        (const_binop): Likewise.  Use VECTOR_CST_ELT directly when operating
        on VECTOR_CSTs, rather than going through vec_cst_ctor_to_array.
        (const_unop): Likewise.  Store the reduction accumulator in a
        variable rather than an array.
        (vec_cst_ctor_to_array): Take the number of elements as a parameter.
        (fold_vec_perm): Update calls accordingly.  Use auto_vec<tree> for
        the new vector, rather than constructing it after the input arrays.
        (native_interpret_vector): Use auto_vec<tree> when building
        a vector passed to build_vector.  Add elements in order.
        * tree-vect-loop.c (get_initial_defs_for_reduction): Use
        auto_vec<tree> when building a vector passed to build_vector.
        (vect_create_epilog_for_reduction): Likewise.
        (vectorizable_induction): Likewise.
        (get_initial_def_for_reduction): Likewise.  Fix indentation of
        case statements.
        * config/sparc/sparc.c (sparc_handle_vis_mul8x16): Change n_elts
        to a vec<tree> *.
        (sparc_fold_builtin): Use auto_vec<tree> when building a vector
        passed to build_vector.

2017-09-14  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-core.h (tree_base::u): Add an "nelts" field.
        (tree_vector): Use VECTOR_CST_NELTS as the length.
        * tree.c (tree_size): Likewise.
        (make_vector): Initialize VECTOR_CST_NELTS.
        * tree.h (VECTOR_CST_NELTS): Use the u.nelts field.
        * cfgexpand.c (expand_debug_expr): Use VECTOR_CST_NELTS instead of
        TYPE_VECTOR_SUBPARTS.
        * expr.c (const_vector_mask_from_tree): Consistently use "units"
        as the number of units, setting it from VECTOR_CST_NELTS.
        (const_vector_from_tree): Likewise.
        * fold-const.c (negate_expr_p): Use VECTOR_CST_NELTS instead of
        TYPE_VECTOR_SUBPARTS for the number of elements in a VECTOR_CST.
        (fold_negate_expr_1): Likewise.
        (fold_convert_const): Likewise.
        (const_binop): Likewise.  Differentiate the number of output and
        input elements.
        (const_unop): Likewise.
        (fold_ternary_loc): Use VECTOR_CST_NELTS for the number of elements
        in a VECTOR_CST, asserting that it is the same as TYPE_VECTOR_SUBPARTS
        in cases that did the opposite.

2017-09-14  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.c (visit_phi): Merge undefined values similar
        to VN_TOP.

2017-09-14  Eric Botcazou  <ebotcazou@adacore.com>

        * dwarf2out.c (dwarf2out_source_line): Remove superfluous test.

2017-09-14  Jakub Jelinek  <jakub@redhat.com>

        PR target/81325
        * cfgbuild.c (find_bb_boundaries): Ignore debug insns in decisions
        if and where to split a bb, except for splitting before debug insn
        sequences followed by non-label real insn.  Delete debug insns
        in between basic blocks.

        * combine.c (make_compound_operation_int): Formatting fixes.

        * config/alpha/elf.h (LINK_EH_SPEC): Add -static-pie support.
        * config/alpha/linux.h (LINK_GCC_C_SEQUENCE_SPEC): Likewise.
        * config/netbsd.h (LINK_EH_SPEC): Likewise.
        * config/sol2.h (LINK_EH_SPEC): Likewise.
        * config/arm/uclinux-elf.h (LINK_GCC_C_SEQUENCE_SPEC): Likewise.
        * config/s390/linux.h (LINK_SPEC): Likewise.
        * config/freebsd.h (LINK_EH_SPEC): Likewise.
        * config/openbsd.h (LINK_EH_SPEC): Likewise.
        * config/lm32/uclinux-elf.h (LINK_GCC_C_SEQUENCE_SPEC): Likewise.
        * config/aarch64/aarch64-linux.h (LINUX_TARGET_LINK_SPEC): Likewise.
        * config/powerpcspe/sysv4.h (LINK_EH_SPEC): Likewise.
        * config/bfin/linux.h (LINK_GCC_C_SEQUENCE_SPEC): Likewise.
        * config/i386/gnu-user64.h (GNU_USER_TARGET_LINK_SPEC): Fix a typo.
        * config/i386/gnu-user.h (GNU_USER_TARGET_LINK_SPEC): Formatting fix.

2017-09-13  Jakub Jelinek  <jakub@redhat.com>

        * config/rs6000/sysv4.h (STARTFILE_LINUX_SPEC): Add -static-pie
        support.
        (ENDFILE_LINUX_SPEC): Likewise.
        (LINK_EH_SPEC): Likewise.
        * config/rs6000/linux64.h (LINK_SHLIB_SPEC): Likewise.
        (LINK_OS_LINUX_SPEC32): Likewise.
        (LINK_OS_LINUX_SPEC64): Likewise.
        * config/rs6000/linux.h (LINK_SHLIB_SPEC): Likewise.
        (LINK_OS_LINUX_SPEC): Likewise.

2017-09-13  Martin Liska  <mliska@suse.cz>

        PR middle-end/82154
        * stmt.c (expand_sjlj_dispatch_table): Use CASE_LOW when
        CASE_HIGH is NULL_TREE.

2017-09-13  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (secondary_memory_needed): New hook.
        (secondary_reload): Refer to TARGET_SECONDARY_MEMORY_NEEDED
        instead of SECONDARY_MEMORY_NEEDED.
        (secondary_memory_needed_mode): Likewise.
        * hooks.h (hook_bool_mode_reg_class_t_reg_class_t_false): Declare.
        * hooks.c (hook_bool_mode_reg_class_t_reg_class_t_false): New function.
        * doc/tm.texi.in (SECONDARY_MEMORY_NEEDED): Replace with...
        (TARGET_SECONDARY_MEMORY_NEEDED): ...this.
        (SECONDARY_MEMORY_NEEDED_RTX): Update reference accordingly.
        * doc/tm.texi: Regenerate.
        * config/alpha/alpha.h (SECONDARY_MEMORY_NEEDED): Delete.
        * config/alpha/alpha.c (alpha_secondary_memory_needed): New function.
        (TARGET_SECONDARY_MEMORY_NEEDED): Redefine.
        * config/i386/i386.h (SECONDARY_MEMORY_NEEDED): Delete.
        * config/i386/i386-protos.h (ix86_secondary_memory_needed): Delete.
        * config/i386/i386.c (inline_secondary_memory_needed): Put the
        mode argument first and change the reg_class arguments to reg_class_t.
        (ix86_secondary_memory_needed): Likewise.  Remove the strict parameter.
        Make static.  Update the call to inline_secondary_memory_needed.
        (ix86_register_move_cost): Update the call to
        inline_secondary_memory_needed.
        (TARGET_SECONDARY_MEMORY_NEEDED): Redefine.
        * config/ia64/ia64.h (SECONDARY_MEMORY_NEEDED): Delete commented-out
        definition.
        * config/ia64/ia64.c (spill_xfmode_rfmode_operand): Refer to
        TARGET_SECONDARY_MEMORY_NEEDED rather than SECONDARY_MEMORY_NEEDED
        in comment.
        * config/mips/mips.h (SECONDARY_MEMORY_NEEDED): Delete.
        * config/mips/mips-protos.h (mips_secondary_memory_needed): Delete.
        * config/mips/mips.c (mips_secondary_memory_needed): Make static
        and match hook interface.  Add comment from mips.h.
        (TARGET_SECONDARY_MEMORY_NEEDED): Redefine.
        * config/mmix/mmix.md (truncdfsf2): Refer to
        TARGET_SECONDARY_MEMORY_NEEDED rather than SECONDARY_MEMORY_NEEDED
        in comment.
        * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED): Rename to...
        (PA_SECONDARY_MEMORY_NEEDED): ...this, and put the mode argument first.
        * config/pa/pa.c (TARGET_SECONDARY_MEMORY_NEEDED): Redefine.
        (pa_secondary_memory_needed): New function.
        * config/pdp11/pdp11.h (SECONDARY_MEMORY_NEEDED): Delete.
        * config/pdp11/pdp11-protos.h (pdp11_secondary_memory_needed): Delete.
        * config/pdp11/pdp11.c (TARGET_SECONDARY_MEMORY_NEEDED): Redefine.
        (pdp11_secondary_memory_needed): Make static and match hook interface.
        * config/powerpcspe/powerpcspe.h (SECONDARY_MEMORY_NEEDED): Delete.
        * config/powerpcspe/powerpcspe-protos.h
        (rs6000_secondary_memory_needed_ptr): Delete.
        * config/powerpcspe/powerpcspe.c (rs6000_secondary_memory_needed_ptr):
        Delete.
        (TARGET_SECONDARY_MEMORY_NEEDED): Redefine.
        (rs6000_option_override_internal): Assign to
        targetm.secondary_memory_needed rather than
        rs6000_secondary_memory_needed_ptr.
        (rs6000_secondary_memory_needed): Match hook interface.
        (rs6000_debug_secondary_memory_needed): Likewise.
        * config/riscv/riscv.h (SECONDARY_MEMORY_NEEDED): Delete.
        * config/riscv/riscv.c (riscv_secondary_memory_needed): New function.
        (riscv_register_move_cost): Use it instead of SECONDARY_MEMORY_NEEDED.
        (TARGET_SECONDARY_MEMORY_NEEDED): Redefine.
        * config/rs6000/rs6000.h (SECONDARY_MEMORY_NEEDED): Delete.
        * config/rs6000/rs6000-protos.h (rs6000_secondary_memory_needed_ptr):
        Delete.
        * config/rs6000/rs6000.c (rs6000_secondary_memory_needed_ptr): Delete.
        (TARGET_SECONDARY_MEMORY_NEEDED): Redefine.
        (rs6000_option_override_internal): Assign to
        targetm.secondary_memory_needed rather than
        rs6000_secondary_memory_needed_ptr.
        (rs6000_secondary_memory_needed): Match hook interface.
        (rs6000_debug_secondary_memory_needed): Likewise.
        * config/s390/s390.h (SECONDARY_MEMORY_NEEDED): Delete.
        * config/s390/s390.c (s390_secondary_memory_needed): New function.
        (TARGET_SECONDARY_MEMORY_NEEDED): Redefine.
        * config/sparc/sparc.h (SECONDARY_MEMORY_NEEDED): Delete.
        * config/sparc/sparc.c (TARGET_SECONDARY_MEMORY_NEEDED): Redefine.
        (sparc_secondary_memory_needed): New function.
        * lra-constraints.c (check_and_process_move): Refer to
        TARGET_SECONDARY_MEMORY_NEEDED rather than SECONDARY_MEMORY_NEEDED
        in comment.
        (curr_insn_transform): Likewise.
        (process_alt_operands): Use targetm.secondary_memory_needed
        instead of TARGET_SECONDARY_MEMORY_NEEDED.
        (check_secondary_memory_needed_p): Likewise.
        (choose_split_class): Likewise.
        * reload.c: Unconditionally include code that was previously
        conditional on SECONDARY_MEMORY_NEEDED.
        (push_secondary_reload): Use targetm.secondary_memory_needed
        instead of TARGET_SECONDARY_MEMORY_NEEDED.
        (push_reload): Likewise.
        * reload1.c: Unconditionally include code that was previously
        conditional on SECONDARY_MEMORY_NEEDED.
        (choose_reload_regs): Use targetm.secondary_memory_needed
        instead of TARGET_SECONDARY_MEMORY_NEEDED.
        (gen_reload): Likewise.
        * system.h (SECONDARY_MEMORY_NEEDED): Poison.

2017-09-13  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (secondary_memory_needed_mode): New hook:
        * targhooks.c (default_secondary_memory_needed_mode): Declare.
        * targhooks.h (default_secondary_memory_needed_mode): New function.
        * doc/tm.texi.in (SECONDARY_MEMORY_NEEDED_MODE): Replace with...
        (TARGET_SECONDARY_MEMORY_NEEDED_MODE): ...this.
        * doc/tm.texi: Regenerate.
        * lra-constraints.c (check_and_process_move): Use
        targetm.secondary_memory_needed_mode instead of
        TARGET_SECONDARY_MEMORY_NEEDED_MODE.
        (curr_insn_transform): Likewise.
        * reload.c (get_secondary_mem): Likewise.
        * config/alpha/alpha.h (SECONDARY_MEMORY_NEEDED_MODE): Delete.
        * config/alpha/alpha.c (alpha_secondary_memory_needed_mode): New
        function.
        (TARGET_SECONDARY_MEMORY_NEEDED_MODE): Redefine.
        * config/i386/i386.h (SECONDARY_MEMORY_NEEDED_MODE): Delete.
        * config/i386/i386.c (ix86_secondary_memory_needed_mode): New function.
        (TARGET_SECONDARY_MEMORY_NEEDED_MODE): Redefine.
        * config/powerpcspe/powerpcspe.h (SECONDARY_MEMORY_NEEDED_MODE):
        Delete.
        * config/powerpcspe/powerpcspe-protos.h
        (rs6000_secondary_memory_needed_mode): Delete.
        * config/powerpcspe/powerpcspe.c
        (TARGET_SECONDARY_MEMORY_NEEDED_MODE): Redefine.
        (rs6000_secondary_memory_needed_mode): Make static.
        * config/rs6000/rs6000.h (SECONDARY_MEMORY_NEEDED_MODE): Delete.
        * config/rs6000/rs6000-protos.h (rs6000_secondary_memory_needed_mode):
        Delete.
        * config/rs6000/rs6000.c (TARGET_SECONDARY_MEMORY_NEEDED_MODE):
        Redefine.
        (rs6000_secondary_memory_needed_mode): Make static.
        * config/s390/s390.h (SECONDARY_MEMORY_NEEDED_MODE): Delete.
        * config/s390/s390.c (s390_secondary_memory_needed_mode): New function.
        (TARGET_SECONDARY_MEMORY_NEEDED_MODE): Redefine.
        * config/sparc/sparc.h (SECONDARY_MEMORY_NEEDED_MODE): Delete.
        * config/sparc/sparc.c (TARGET_SECONDARY_MEMORY_NEEDED_MODE):
        Redefine.
        (sparc_secondary_memory_needed_mode): New function.
        * system.h (TARGET_SECONDARY_MEMORY_NEEDED_MODE): Poison.

2017-09-13  Jackson Woodruff  <jackson.woodruff@arm.com>

        * config/aarch64/constraints.md (Umq): New constraint.
        * config/aarch64/aarch64-simd.md (*aarch64_simd_mov<mode>):
        Change to use Umq.
        (mov<mode>): Update condition.

2017-09-13  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * gimple-ssa-store-merging.c (sort_by_bitpos): Compare store order
        when bitposition is the same.

2017-09-13  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (output_die_symbol): Remove.
        (output_die): Do not output a DIEs symbol.

2017-09-13  Richard Biener  <rguenther@suse.de>

        PR middle-end/82128
        * gimple-fold.c (gimple_fold_call): Update SSA name in-place to
        default-def to avoid breaking iterator update with the weird
        interaction with cgraph_update_edges_for_call_stmt_node.

2017-09-13  Richard Biener  <rguenther@suse.de>

        * tree-cfg.c (verify_gimple_assign_binary): Add verification
        for WIDEN_SUM_EXPR, VEC_WIDEN_MULT_{HI,LO,EVEN,ODD}_EXPR,
        VEC_PACK_{TRUNC,SAT,FIX_TRUNC}_EXPR.
        (verify_gimple_assign_ternary): Add verification for DOT_PROD_EXPR.

2017-09-13  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * config/aarch64/aarch64.c (aarch64_override_options_after_change_1):
        Disable pc relative literal load irrespective of
        TARGET_FIX_ERR_A53_84341 for default.

2017-09-12  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.c (output_return): Output the source location of
        the insn in the delay slot, if any.
        (output_sibcall): Likewise.

2017-09-12  H.J. Lu  <hongjiu.lu@intel.com>

        PR driver/81498
        * common.opt (-static-pie): New alias.
        (shared): Negate static-pie.
        (-no-pie): Update help text.
        (-pie): Likewise.
        (static-pie): New option.
        * config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Add
        -static-pie support.
        (GNU_USER_TARGET_ENDFILE_SPEC): Likewise.
        (LINK_EH_SPEC): Likewise.
        (LINK_GCC_C_SEQUENCE_SPEC): Likewise.
        * config/i386/gnu-user.h (GNU_USER_TARGET_LINK_SPEC): Likewise.
        * config/i386/gnu-user64.h (GNU_USER_TARGET_LINK_SPEC): Likewise.
        * gcc.c (LINK_COMMAND_SPEC): Likewise.
        (init_gcc_specs): Likewise.
        (init_spec): Likewise.
        (display_help): Update help message for -pie.
        * doc/invoke.texi: Update -pie, -no-pie and -static.  Document
        -static-pie.

2017-09-12  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.md (movsi_aarch64): Remove all '*'.
        (movdi_aarch64): Likewise.
        (movti_aarch64): Likewise.

2017-09-12 Simon Wright <simon@pushface.org>

        PR target/80204
        * config/darwin-driver.c (darwin_find_version_from_kernel): Eliminate
        calculation of the minor version, always output as 0.

2017-09-12  Jakub Jelinek  <jakub@redhat.com>

        PR target/82112
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): For
        ALTIVEC_BUILTIN_VEC_LD if arg1 has array type call default_conversion
        on it early, rather than manual conversion late.  For
        ALTIVEC_BUILTIN_VEC_ST if arg2 has array type call default_conversion
        instead of performing manual conversion.

2017-09-12  Carl Love  <cel@us.ibm.com>

        * config/rs6000/altivec.md (vec_widen_umult_even_v4si,
        vec_widen_smult_even_v4si): Add define expands for vmuleuw, vmulesw,
        vmulouw, vmulosw.
        * config/rs6000/rs6000-builtin.def (VMLEUW, VMULESW, VMULOUW,
        VMULOSW): Add definitions.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        ALTIVEC_BUILTIN_VMULESW, ALTIVEC_BUILTIN_VMULEUW,
        ALTIVEC_BUILTIN_VMULOSW, ALTIVEC_BUILTIN_VMULOUW entries.
        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin,
        builtin_function_type): Add ALTIVEC_BUILTIN_* case statements.

2017-09-12  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64.md (movdi_aarch64): Set load/store
        types correctly.
        (movti_aarch64): Likewise.
        (movdf_aarch64): Likewise.
        (movtf_aarch64): Likewise.
        (load_pairdi): Likewise.
        (store_pairdi): Likewise.
        (load_pairdf): Likewise.
        (store_pairdf): Likewise.
        (loadwb_pair<GPI:mode>_<P:mode>): Likewise.
        (storewb_pair<GPI:mode>_<P:mode>): Likewise.
        (ldr_got_small_<mode>): Likewise.
        (ldr_got_small_28k_<mode>): Likewise.
        (ldr_got_tiny): Likewise.
        * config/aarch64/iterators.md (ldst_sz): New.
        (ldpstp_sz): Likewise.
        * config/aarch64/thunderx.md (thunderx_storepair): Split store_8
        to store_16.
        (thunderx_load): Split load_8 to load_16.
        * config/aarch64/thunderx2t99.md (thunderx2t99_loadpair): Split
        load_8 to load_16.
        (thunderx2t99_storepair_basic): Split store_8 to store_16.
        * config/arm/xgene1.md (xgene1_load_pair): Split load_8 to load_16.
        (xgene1_store_pair): Split store_8 to store_16.
        * config/aarch64/falkor.md (falkor_ld_3_ld): Split load_8 to load_16.
        (falkor_st_0_st_sd): Split store_8 to store_16.

2017-09-12  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/arm/types.md (type): Rename load1/2/3/4 to load_4/8/12/16
        and store1/2/3/4 to store_4/8/12/16.
        * config/aarch64/aarch64.md: Update for rename.
        * config/arm/arm.md: Likewise.: Likewise.
        * config/arm/arm.c: Likewise.
        * config/arm/thumb1.md: Likewise.
        * config/arm/thumb2.md: Likewise.
        * config/arm/vfp.md: Likewise.
        * config/arm/arm-generic.md: Likewise.
        * config/arm/arm1020e.md: Likewise.
        * config/arm/arm1026ejs.md: Likewise.
        * config/arm/arm1136jfs.md: Likewise.
        * config/arm/arm926ejs.md: Likewise.
        * config/arm/cortex-a15.md: Likewise.
        * config/arm/cortex-a17.md: Likewise.
        * config/arm/cortex-a5.md: Likewise.
        * config/arm/cortex-a53.md: Likewise.
        * config/arm/cortex-a57.md: Likewise.
        * config/arm/cortex-a7.md: Likewise.
        * config/arm/cortex-a8.md: Likewise.
        * config/arm/cortex-a9.md: Likewise.
        * config/arm/cortex-m4.md: Likewise.
        * config/arm/cortex-m7.md: Likewise.
        * config/arm/cortex-r4.md: Likewise.
        * config/arm/exynos-m1.md: Likewise.
        * config/arm/fa526.md: Likewise.
        * config/arm/fa606te.md: Likewise.
        * config/arm/fa626te.md: Likewise.
        * config/arm/fa726te.md: Likewise.
        * config/arm/fmp626.md: Likewise.
        * config/arm/iwmmxt.md: Likewise.
        * config/arm/ldmstm.md: Likewise.
        * config/arm/marvell-pj4.md: Likewise.
        * config/arm/xgene1.md: Likewise.
        * config/aarch64/thunderx.md: Likewise.
        * config/aarch64/thunderx2t99.md: Likewise.
        * config/aarch64/falkor.md: Likewise.

2017-09-12  Martin Liska  <mliska@suse.cz>

        * attribs.c (private_lookup_attribute): New function.
        * attribs.h (private_lookup_attribute): Declared here.
        (lookup_attribute): Called from this place.

2017-09-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82157
        * tree-ssa-pre.c (remove_dead_inserted_code): Do not remove
        stmts with side-effects.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood <david.sherwood@arm.com>

        * target.def (hard_regno_nregs): New hook.
        (class_max_nregs): Refer to it instead of HARD_REGNO_NREGS.
        * targhooks.h (default_hard_regno_nregs): Declare.
        * targhooks.c (default_hard_regno_nregs): New function.
        * doc/tm.texi.in (HARD_REGNO_NREGS): Replace with...
        (TARGET_HARD_REGNO_NREGS): ...this hook.
        (HARD_REGNO_NREGS_HAS_PADDING): Update accordingly.
        (CLASS_MAX_NREGS): Likewise.
        * doc/tm.texi: Regenerate.
        * reginfo.c (init_reg_modes_target): Use targetm.hard_regno_nregs
        instead of HARD_REGNO_NREGS.
        * rtl.h (REG_NREGS): Refer to TARGET_HARD_REGNO_NREGS rather than
        HARD_REGNO_NREGS in the comment.
        * config/aarch64/aarch64.h (HARD_REGNO_NREGS): Delete.
        * config/aarch64/aarch64-protos.h (aarch64_hard_regno_nregs): Delete.
        * config/aarch64/aarch64.c (aarch64_hard_regno_nregs): Make static.
        Return an unsigned int.
        (TARGET_HARD_REGNO_NREGS): Redefine.
        * config/alpha/alpha.h (HARD_REGNO_NREGS): Delete.
        * config/arc/arc.h (HARD_REGNO_NREGS): Delete.
        * config/arc/arc.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (arc_hard_regno_nregs): New function.
        * config/arm/arm.h (HARD_REGNO_NREGS): Delete.
        * config/arm/arm.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (arm_hard_regno_nregs): New function.
        * config/avr/avr.h (HARD_REGNO_NREGS): Delete.
        * config/bfin/bfin.h (HARD_REGNO_NREGS): Delete.
        * config/bfin/bfin.c (bfin_hard_regno_nregs): New function.
        (TARGET_HARD_REGNO_NREGS): Redefine.
        * config/c6x/c6x.h (HARD_REGNO_NREGS): Delete.
        * config/cr16/cr16.h (LONG_REG_P): Use targetm.hard_regno_nregs.
        (HARD_REGNO_NREGS): Delete.
        * config/cr16/cr16.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (cr16_hard_regno_nregs): New function.
        (cr16_memory_move_cost): Use it instead of HARD_REGNO_NREGS.
        * config/cris/cris.h (HARD_REGNO_NREGS): Delete.
        * config/cris/cris.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (cris_hard_regno_nregs): New function.
        * config/epiphany/epiphany.h (HARD_REGNO_NREGS): Delete.
        * config/fr30/fr30.h (HARD_REGNO_NREGS): Delete.
        (CLASS_MAX_NREGS): Use targetm.hard_regno_nregs.
        * config/frv/frv.h (HARD_REGNO_NREGS): Delete.
        (CLASS_MAX_NREGS): Remove outdated copy of documentation.
        * config/frv/frv-protos.h (frv_hard_regno_nregs): Delete.
        * config/frv/frv.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (frv_hard_regno_nregs): Make static.  Take and return an
        unsigned int.
        (frv_class_max_nregs): Remove outdated copy of documentation.
        * config/ft32/ft32.h (HARD_REGNO_NREGS): Delete.
        * config/h8300/h8300.h (HARD_REGNO_NREGS): Delete.
        * config/h8300/h8300-protos.h (h8300_hard_regno_nregs): Delete.
        * config/h8300/h8300.c (h8300_hard_regno_nregs): Delete.
        * config/i386/i386.h (HARD_REGNO_NREGS): Delete.
        * config/i386/i386.c (ix86_hard_regno_nregs): New function.
        (TARGET_HARD_REGNO_NREGS): Redefine.
        * config/ia64/ia64.h (HARD_REGNO_NREGS): Delete.
        (CLASS_MAX_NREGS): Update comment.
        * config/ia64/ia64.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (ia64_hard_regno_nregs): New function.
        * config/iq2000/iq2000.h (HARD_REGNO_NREGS): Delete.
        * config/lm32/lm32.h (HARD_REGNO_NREGS): Delete.
        * config/m32c/m32c.h (HARD_REGNO_NREGS): Delete.
        * config/m32c/m32c-protos.h (m32c_hard_regno_nregs): Delete.
        * config/m32c/m32c.c (m32c_hard_regno_nregs_1): Take and return
        an unsigned int.
        (m32c_hard_regno_nregs): Likewise.  Make static.
        (TARGET_HARD_REGNO_NREGS): Redefine.
        * config/m32r/m32r.h (HARD_REGNO_NREGS): Delete.
        * config/m68k/m68k.h (HARD_REGNO_NREGS): Delete.
        * config/m68k/m68k.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (m68k_hard_regno_nregs): New function.
        * config/mcore/mcore.h (HARD_REGNO_NREGS): Delete.
        * config/microblaze/microblaze.h (HARD_REGNO_NREGS): Delete.
        * config/mips/mips.h (HARD_REGNO_NREGS): Delete.
        * config/mips/mips-protos.h (mips_hard_regno_nregs): Delete.
        * config/mips/mips.c (mips_hard_regno_nregs): Make static.
        Take and return an unsigned int.
        (TARGET_HARD_REGNO_NREGS): Redefine.
        * config/mmix/mmix.h (HARD_REGNO_NREGS): Delete.
        (CLASS_MAX_NREGS): Use targetm.hard_regno_nregs.
        * config/mn10300/mn10300.h (HARD_REGNO_NREGS): Delete.
        * config/moxie/moxie.h (HARD_REGNO_NREGS): Delete.
        * config/msp430/msp430.h (HARD_REGNO_NREGS): Delete.
        * config/msp430/msp430-protos.h (msp430_hard_regno_nregs): Delete.
        * config/msp430/msp430.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (msp430_hard_regno_nregs): Make static.  Take and return an
        unsigned int.
        * config/nds32/nds32.h (HARD_REGNO_NREGS): Delete.
        * config/nds32/nds32-protos.h (nds32_hard_regno_nregs): Delete.
        * config/nds32/nds32.c (nds32_hard_regno_nregs): Delete.
        (nds32_hard_regno_mode_ok): Use targetm.hard_regno_nregs.
        * config/nios2/nios2.h (HARD_REGNO_NREGS): Delete.
        * config/nvptx/nvptx.h (HARD_REGNO_NREGS): Delete.
        * config/nvptx/nvptx.c (nvptx_hard_regno_nregs): New function.
        (TARGET_HARD_REGNO_NREGS): Redefine.
        * config/pa/pa32-regs.h (HARD_REGNO_NREGS): Rename to...
        (PA_HARD_REGNO_NREGS): ...this.
        * config/pa/pa64-regs.h (HARD_REGNO_NREGS): Rename to...
        (PA_HARD_REGNO_NREGS): ...this.
        * config/pa/pa.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (pa_hard_regno_nregs): New function.
        * config/pdp11/pdp11.h (HARD_REGNO_NREGS): Delete.
        * config/pdp11/pdp11.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (pdp11_hard_regno_nregs): New function.
        * config/powerpcspe/powerpcspe.h (HARD_REGNO_NREGS): Delete.
        * config/powerpcspe/powerpcspe.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (rs6000_hard_regno_nregs_hook): New function.
        * config/riscv/riscv.h (HARD_REGNO_NREGS): Delete.
        * config/riscv/riscv-protos.h (riscv_hard_regno_nregs): Delete.
        * config/riscv/riscv.c (riscv_hard_regno_nregs): Make static.
        Take and return an unsigned int.  Move earlier in file.
        (TARGET_HARD_REGNO_NREGS): Redefine.
        * config/rl78/rl78.h (HARD_REGNO_NREGS): Delete.
        * config/rl78/rl78-protos.h (rl78_hard_regno_nregs): Delete.
        * config/rl78/rl78.c (TARGET_HARD_REGNO_NREGS): Reefine.
        (rl78_hard_regno_nregs): Make static.  Take and return an
        unsigned int.
        * config/rs6000/rs6000.h (HARD_REGNO_NREGS): Delete.
        * config/rs6000/rs6000.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (rs6000_hard_regno_nregs_hook): New function.
        * config/rx/rx.h (HARD_REGNO_NREGS): Delete.
        * config/rx/rx.c (rx_hard_regno_nregs): New function.
        (TARGET_HARD_REGNO_NREGS): Redefine.
        * config/s390/s390.h (HARD_REGNO_NREGS): Delete.
        * config/s390/s390.c (REGNO_PAIR_OK): Use s390_hard_regno_nregs
        instead of HARD_REGNO_NREGS.
        (s390_hard_regno_nregs): New function.
        (s390_hard_regno_mode_ok): Add comment from s390.h.
        (TARGET_HARD_REGNO_NREGS): Redefine.
        * config/sh/sh.h (HARD_REGNO_NREGS): Delete.
        * config/sh/sh.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (sh_hard_regno_nregs): New function.
        (sh_pass_in_reg_p): Use it.
        * config/sparc/sparc.h (HARD_REGNO_NREGS): Delete.
        * config/sparc/sparc.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (sparc_hard_regno_nregs): New function.
        * config/spu/spu.h (HARD_REGNO_NREGS): Delete.
        * config/spu/spu.c (spu_hard_regno_nregs): New function.
        (spu_function_arg_advance): Use it, supplying a valid register number.
        (TARGET_HARD_REGNO_NREGS): Redefine.
        * config/stormy16/stormy16.h (HARD_REGNO_NREGS): Delete.
        * config/tilegx/tilegx.h (HARD_REGNO_NREGS): Delete.
        * config/tilepro/tilepro.h (HARD_REGNO_NREGS): Delete.
        * config/v850/v850.h (HARD_REGNO_NREGS): Delete.
        * config/vax/vax.h (HARD_REGNO_NREGS): Delete.
        * config/visium/visium.h (HARD_REGNO_NREGS): Delete.
        (CLASS_MAX_NREGS): Remove copy of old documentation.
        * config/visium/visium.c (TARGET_HARD_REGNO_NREGS): Redefine.
        (visium_hard_regno_nregs): New function.
        (visium_hard_regno_mode_ok): Use it instead of HARD_REGNO_NREGS.
        * config/xtensa/xtensa.h (HARD_REGNO_NREGS): Delete.
        * config/xtensa/xtensa.c (TARGET_HARD_REGNO_NREGS): Redefine.
        xtensa_hard_regno_nregs): New function.
        * system.h (HARD_REGNO_NREGS): Poison.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/arm/arm.h (THUMB_SECONDARY_INPUT_RELOAD_CLASS): Use
        hard_regno_nregs instead of HARD_REGNO_NREGS.
        (THUMB_SECONDARY_OUTPUT_RELOAD_CLASS): Likewise.
        * config/c6x/c6x.c (c6x_expand_prologue): Likewise.
        (c6x_expand_epilogue): Likewise.
        * config/frv/frv.c (frv_alloc_temp_reg): Likewise.
        (frv_read_iacc_argument): Likewise.
        * config/sh/sh.c: Include regs.h.
        (sh_print_operand): Use hard_regno_nregs instead of HARD_REGNO_NREGS.
        (regs_used): Likewise.
        (output_stack_adjust): Likewise.
        * config/xtensa/xtensa.c (xtensa_copy_incoming_a7): Likewise.
        * expmed.c: Include regs.h.
        (store_bit_field_1): Use hard_regno_nregs instead of HARD_REGNO_NREGS.
        * ree.c: Include regs.h.
        (combine_reaching_defs): Use hard_regno_nregs instead of
        HARD_REGNO_NREGS.
        (add_removable_extension): Likewise.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

        * regs.h (hard_regno_nregs): Turn into a function.
        (end_hard_regno): Update accordingly.
        * caller-save.c (setup_save_areas): Likewise.
        (save_call_clobbered_regs): Likewise.
        (replace_reg_with_saved_mem): Likewise.
        (insert_restore): Likewise.
        (insert_save): Likewise.
        * combine.c (can_change_dest_mode): Likewise.
        (move_deaths): Likewise.
        (distribute_notes): Likewise.
        * config/mips/mips.c (mips_hard_regno_call_part_clobbered): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_cannot_change_mode_class)
        (rs6000_split_multireg_move): Likewise.
        (rs6000_register_move_cost): Likewise.
        (rs6000_memory_move_cost): Likewise.
        * config/rs6000/rs6000.c (rs6000_cannot_change_mode_class): Likewise.
        (rs6000_split_multireg_move): Likewise.
        (rs6000_register_move_cost): Likewise.
        (rs6000_memory_move_cost): Likewise.
        * cselib.c (cselib_reset_table): Likewise.
        (cselib_lookup_1): Likewise.
        * emit-rtl.c (set_mode_and_regno): Likewise.
        * function.c (aggregate_value_p): Likewise.
        * ira-color.c (setup_profitable_hard_regs): Likewise.
        (check_hard_reg_p): Likewise.
        (calculate_saved_nregs): Likewise.
        (assign_hard_reg): Likewise.
        (improve_allocation): Likewise.
        (calculate_spill_cost): Likewise.
        * ira-emit.c (modify_move_list): Likewise.
        * ira-int.h (ira_hard_reg_set_intersection_p): Likewise.
        (ira_hard_reg_in_set_p): Likewise.
        * ira.c (setup_reg_mode_hard_regset): Likewise.
        (clarify_prohibited_class_mode_regs): Likewise.
        (check_allocation): Likewise.
        * lra-assigns.c (find_hard_regno_for_1): Likewise.
        (lra_setup_reg_renumber): Likewise.
        (setup_try_hard_regno_pseudos): Likewise.
        (spill_for): Likewise.
        (assign_hard_regno): Likewise.
        (setup_live_pseudos_and_spill_after_risky_transforms): Likewise.
        * lra-constraints.c (in_class_p): Likewise.
        (lra_constraint_offset): Likewise.
        (simplify_operand_subreg): Likewise.
        (lra_constraints): Likewise.
        (split_reg): Likewise.
        (split_if_necessary): Likewise.
        (invariant_p): Likewise.
        (inherit_in_ebb): Likewise.
        * lra-lives.c (process_bb_lives): Likewise.
        * lra-remat.c (reg_overlap_for_remat_p): Likewise.
        (get_hard_regs): Likewise.
        (do_remat): Likewise.
        * lra-spills.c (assign_spill_hard_regs): Likewise.
        * mode-switching.c (create_pre_exit): Likewise.
        * postreload.c (reload_combine_recognize_pattern): Likewise.
        * recog.c (peep2_find_free_register): Likewise.
        * regcprop.c (kill_value_regno): Likewise.
        (set_value_regno): Likewise.
        (copy_value): Likewise.
        (maybe_mode_change): Likewise.
        (find_oldest_value_reg): Likewise.
        (copyprop_hardreg_forward_1): Likewise.
        * regrename.c (check_new_reg_p): Likewise.
        (regrename_do_replace): Likewise.
        * reload.c (push_reload): Likewise.
        (combine_reloads): Likewise.
        (find_dummy_reload): Likewise.
        (operands_match_p): Likewise.
        (find_reloads): Likewise.
        (find_equiv_reg): Likewise.
        (reload_adjust_reg_for_mode): Likewise.
        * reload1.c (count_pseudo): Likewise.
        (count_spilled_pseudo): Likewise.
        (find_reg): Likewise.
        (clear_reload_reg_in_use): Likewise.
        (free_for_value_p): Likewise.
        (allocate_reload_reg): Likewise.
        (choose_reload_regs): Likewise.
        (reload_adjust_reg_for_temp): Likewise.
        (emit_reload_insns): Likewise.
        (delete_output_reload): Likewise.
        * rtlanal.c (subreg_get_info): Likewise.
        * sched-deps.c (sched_analyze_reg): Likewise.
        * sel-sched.c (init_regs_for_mode): Likewise.
        (mark_unavailable_hard_regs): Likewise.
        (choose_best_reg_1): Likewise.
        (verify_target_availability): Likewise.
        * valtrack.c (dead_debug_insert_temp): Likewise.
        * var-tracking.c (track_loc_p): Likewise.
        (emit_note_insn_var_location): Likewise.
        * varasm.c (make_decl_rtl): Likewise.
        * reginfo.c (choose_hard_reg_mode): Likewise.
        (init_reg_modes_target): Refer directly to
        this_target_regs->x_hard_regno_nregs.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

        * ira-costs.c (record_operand_costs): Use in_hard_reg_set_p
        instead of hard_regno_nregs.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/aarch64/aarch64.c (aarch64_hard_regno_mode_ok): Use
        end_hard_regno instead of hard_regno_nregs.
        * config/s390/s390.c (s390_reg_clobbered_rtx): Likewise.
        * config/sparc/sparc.h (ASM_DECLARE_REGISTER_GLOBAL): Likewise.
        * config/visium/visium.c (visium_hard_regno_mode_ok): Likewise.
        * ira-color.c (improve_allocation): Likewise.
        * lra-assigns.c (find_hard_regno_for_1): Likewise.
        * lra-lives.c (mark_regno_live): Likewise.
        (mark_regno_dead): Likewise.
        * lra-remat.c (operand_to_remat): Likewise.
        * lra.c (collect_non_operand_hard_regs): Likewise.
        * postreload.c (reload_combine_note_store): Likewise.
        (move2add_valid_value_p): Likewise.
        * reload.c (regno_clobbered_p): Likewise.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/frv/frv.c (FOR_EACH_REGNO): Use END_REGNO instead of
        hard_regno_nregs.
        * config/v850/v850.c (v850_reorg): Likewise.
        * reload.c (refers_to_regno_for_reload_p): Likewise.
        (find_equiv_reg): Likewise.
        * reload1.c (reload_reg_reaches_end_p): Likewise.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

        * caller-save.c (add_used_regs): Use REG_NREGS instead of
        hard_regno_nregs.
        * config/aarch64/aarch64.c (aarch64_split_combinev16qi): Likewise.
        * config/arm/arm.c (output_move_neon): Likewise.
        (arm_attr_length_move_neon): Likewise.
        (neon_split_vcombine): Likewise.
        * config/c6x/c6x.c (c6x_mark_reg_read): Likewise.
        (c6x_mark_reg_written): Likewise.
        (c6x_dwarf_register_span): Likewise.
        * config/i386/i386.c (ix86_save_reg): Likewise.
        * config/ia64/ia64.c (mark_reg_gr_used_mask): Likewise.
        (rws_access_reg): Likewise.
        * config/s390/s390.c (s390_call_saved_register_used): Likewise.
        * mode-switching.c (create_pre_exit): Likewise.
        * ree.c (combine_reaching_defs): Likewise.
        (add_removable_extension): Likewise.
        * regcprop.c (find_oldest_value_reg): Likewise.
        (copyprop_hardreg_forward_1): Likewise.
        * reload.c (reload_inner_reg_of_subreg): Likewise.
        (push_reload): Likewise.
        (combine_reloads): Likewise.
        (find_dummy_reload): Likewise.
        (reload_adjust_reg_for_mode): Likewise.
        * reload1.c (find_reload_regs): Likewise.
        (forget_old_reloads_1): Likewise.
        (reload_reg_free_for_value_p): Likewise.
        (reload_adjust_reg_for_temp): Likewise.
        (emit_reload_insns): Likewise.
        (delete_output_reload): Likewise.
        * sel-sched.c (choose_best_reg_1): Likewise.
        (choose_best_pseudo_reg): Likewise.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood <david.sherwood@arm.com>

        * defaults.h (SLOW_UNALIGNED_ACCESS): Delete.
        * target.def (slow_unaligned_access): New hook.
        * targhooks.h (default_slow_unaligned_access): Declare.
        * targhooks.c (default_slow_unaligned_access): New function.
        * doc/tm.texi.in (SLOW_UNALIGNED_ACCESS): Replace with...
        (TARGET_SLOW_UNALIGNED_ACCESS): ...this.
        * doc/tm.texi: Regenerate.
        * config/alpha/alpha.h (SLOW_UNALIGNED_ACCESS): Delete.
        * config/arm/arm.h (SLOW_UNALIGNED_ACCESS): Delete.
        * config/i386/i386.h (SLOW_UNALIGNED_ACCESS): Delete commented-out
        definition.
        * config/powerpcspe/powerpcspe.h (SLOW_UNALIGNED_ACCESS): Delete.
        * config/powerpcspe/powerpcspe.c (TARGET_SLOW_UNALIGNED_ACCESS):
        Redefine.
        (rs6000_slow_unaligned_access): New function.
        (rs6000_emit_move): Use it instead of SLOW_UNALIGNED_ACCESS.
        (expand_block_compare): Likewise.
        (expand_strn_compare): Likewise.
        (rs6000_rtx_costs): Likewise.
        * config/riscv/riscv.h (SLOW_UNALIGNED_ACCESS): Delete.
        (riscv_slow_unaligned_access): Likewise.
        * config/riscv/riscv.c (riscv_slow_unaligned_access): Rename to...
        (riscv_slow_unaligned_access_p): ...this and make static.
        (riscv_option_override): Update accordingly.
        (riscv_slow_unaligned_access): New function.
        (TARGET_SLOW_UNALIGNED_ACCESS): Redefine.
        * config/rs6000/rs6000.h (SLOW_UNALIGNED_ACCESS): Delete.
        * config/rs6000/rs6000.c (TARGET_SLOW_UNALIGNED_ACCESS): Redefine.
        (rs6000_slow_unaligned_access): New function.
        (rs6000_emit_move): Use it instead of SLOW_UNALIGNED_ACCESS.
        (rs6000_rtx_costs): Likewise.
        * config/rs6000/rs6000-string.c (expand_block_compare)
        (expand_strn_compare): Use targetm.slow_unaligned_access instead
        of SLOW_UNALIGNED_ACCESS.
        * config/tilegx/tilegx.h (SLOW_UNALIGNED_ACCESS): Delete.
        * config/tilepro/tilepro.h (SLOW_UNALIGNED_ACCESS): Delete.
        * calls.c (expand_call): Use targetm.slow_unaligned_access instead
        of SLOW_UNALIGNED_ACCESS.
        * expmed.c (simple_mem_bitfield_p): Likewise.
        * expr.c (alignment_for_piecewise_move): Likewise.
        (emit_group_load_1): Likewise.
        (emit_group_store): Likewise.
        (copy_blkmode_from_reg): Likewise.
        (emit_push_insn): Likewise.
        (expand_assignment): Likewise.
        (store_field): Likewise.
        (expand_expr_real_1): Likewise.
        * gimple-fold.c (gimple_fold_builtin_memory_op): Likewise.
        * lra-constraints.c (simplify_operand_subreg): Likewise.
        * stor-layout.c (bit_field_mode_iterator::next_mode): Likewise.
        * gimple-ssa-store-merging.c: Likewise in block comment at start
        of file.
        * tree-ssa-strlen.c: Include target.h.
        (handle_builtin_memcmp): Use targetm.slow_unaligned_access instead
        of SLOW_UNALIGNED_ACCESS.
        * system.h (SLOW_UNALIGNED_ACCESS): Poison.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

        PR rtl-optimization/82185
        * expmed.c (emit_store_flag_int): Only test tem if it has been
        initialized.

2017-09-12  Richard Biener  <rguenther@suse.de>

        PR middle-end/82149
        * match.pd ((FTYPE) N CMP CST): Fix typo.

2017-09-12  Simon Atanasyan  <simon.atanasyan@imgtec.com>

        * config/mips/mips.c (mips_attribute_table): Add 'short_call'
        attribute.
        (mips_near_type_p): Add 'short_call' attribute as a synonym
        for 'near'.
        * doc/extend.texi (short_call): Document new function attribute.

2017-09-12  Jakub Jelinek  <jakub@redhat.com>

        PR target/82112
        * c-common.c (sync_resolve_size): Instead of c_dialect_cxx ()
        assertion check that in the condition.
        (get_atomic_generic_size): Likewise.  Before testing if parameter
        has pointer type, if it has array type, call for C++
        default_conversion to perform array-to-pointer conversion.

2017-09-12  Richard Biener  <rguenther@suse.de>

        * tree-vect-generic.c (expand_vector_operations_1): Do nothing
        for operations we cannot scalarize.

2017-09-12  Aldy Hernandez  <aldyh@redhat.com>

        * tree-ssa-threadbackward.c (fsm_find_thread_path): Make GC
        vectors heap vectors.  Clean up comments.
        Make visited_bbs a reference.
        (profitable_jump_thread_path): Make GC
        vectors heap vectors.  Clean up comments.
        Misc cleanups.
        (convert_and_register_jump_thread_path): Make GC vectors heap
        vectors.
        (check_subpath_and_update_thread_path): Same.  Clean up comments.
        Make visited_bbs a reference.
        (handle_phi): Abstract common code to to
        register_jump_thread_path_if_profitable.
        Rename VAR_BB to DEF_BB.
        Update comments.
        Make GC vectors heap vectors.
        Make visited_bbs a reference.
        (handle_assignment): Same.
        (register_jump_thread_path_if_profitable): New.
        (fsm_find_control_statement_thread_paths): Rename VAR_BB to
        DEF_BB.
        Make GC vectors heap vectors.  Clean up comments.
        Make visited_bbs a reference.
        (find_jump_threads_backwards): Make visited_bbs live in the stack.
        * tree-ssa-threadupdate.c (delete_jump_thread_path): Fix typo in
        comment.

2017-09-11  Max Filippov  <jcmvbkbc@gmail.com>

        PR target/82181
        * config/xtensa/xtensa.c (xtensa_mem_offset): Check that both
        words of E_DImode object are reachable by xtensa_uimm8x4 access.

2017-09-11  Vidya Praveen  <vidyapraveen@arm.com>

        Revert r251800 and r251799.

2017-09-11  Martin Jambor  <mjambor@suse.cz>

        PR hsa/82119
        * hsa-gen.c (gen_hsa_phi_from_gimple_phi): Process ADDR_EXPRs in
        arguments in advance.
        * hsa-regalloc.c (naive_process_phi): New parameter predecessors,
        use it to find predecessor edges.
        (naive_outof_ssa): Collect vector of predecessors.

2017-09-08  Jason Merrill  <jason@redhat.com>

        PR c++/70029 - ICE with ref-qualifier and -flto
        * langhooks.h (struct lang_hooks_for_types): Add
        copy_lang_qualifiers.
        * attribs.c (build_type_attribute_qual_variant): Use it.
        * langhooks-def.h (LANG_HOOKS_COPY_LANG_QUALIFIERS): Default to
        NULL.
        (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
        * tree.c (verify_type): Re-enable TYPE_CANONICAL main variant check.

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/81988
        * config/sparc/sparc.md (mulsi3): Rename into *mulsi3_sp32.
        (*mulsi3_sp64): New instruction.
        (mulsi3): New expander.

2017-09-08  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (alpha_print_operand) <case 'S'>: Remove.

2017-09-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * sancov.c: Include memmodel.h.

2017-09-07  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/80897
        * config/sparc/sparc.c (sparc_emit_set_symbolic_const64): Deal with too
        large offsets.

2017-09-07  Carl Love  <cel@us.ibm.com>

        * config/rs6000/vsx.md (define_insn "*stxvl"): Add missing argument to
        the sldi instruction.

2017-09-07  David Edelsohn  <dje.gcc@gmail.com>

        * sancov.c: Include tm_p.h.

2017-09-07  Jakub Jelinek  <jakub@redhat.com>

        PR target/81979
        * output.h (switch_to_other_text_partition): New declaration.
        * varasm.c (switch_to_other_text_partition): New function.
        * config/rs6000/rs6000.c (uses_TOC): Return 2 if
        NOTE_INSN_SWITCH_TEXT_SECTIONS is seen before finding load_toc_* insn.
        (rs6000_elf_declare_function_name): If uses_TOC returned 2, switch
        to the other text partition before emitting LCL label and switch back
        after emitting the word after it.

2017-09-07  Richard Biener  <rguenther@suse.de>

        * passes.def (pass_split_crit_edges): Remove instance before PRE.
        * tree-ssa-pre.c (pass_pre::execute): Instead manually split
        critical edges here, after loop init.
        (pass_data_pre): Remove PROP_no_crit_edges flags.
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Use vn_valueize
        for valueization of call args to avoid leaking VN_TOP.
        (visit_use): Assert we do not visit default defs.
        (init_scc_vn): Use build_decl for VN_TOP to make name nicer.
        Use error_mark_node to more easily detect leaking VN_TOP.
        All default-defs are varying, not VN_TOP.  Mark them visited.
        (run_scc_vn): Make code match comment.

2017-09-07  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-cpus.def (OTHER_VSX_VECTOR_MASKS): Delete
        OPTION_MASK_FLOAT128_KEYWORD.
        (POWERPC_MASKS): Likewise.
        * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Delete
        support for the -mfloat128-type option, and make -mfloat128
        default on PowerPC Linux systems.  Define or undefine
        __FLOAT128__ and  __FLOAT128_HARDWARE__ for the current options.
        Define __float128 to be __ieee128 if IEEE 128-bit support is
        enabled, or undefine it.
        (rs6000_cpu_cpp_builtins): Delete defining __FLOAT128__ here.
        Delete defining __FLOAT128_TYPE__.
        * config/rs6000/rs6000.opt (x_TARGET_FLOAT128_TYPE): Delete the
        -mfloat128-type option and make -mfloat128 default on PowerPC
        Linux systems.
        (TARGET_FLOAT128_TYPE): Likewise.
        (-mfloat128-type): Likewise.
        * config/rs6000/rs6000.c (rs6000_option_override_internal):
        Delete the -mfloat128-type option and make -mfloat128 default on
        PowerPC Linux systems.  Always use __ieee128 to be the keyword for
        the IEEE 128-bit type, and map __float128 to __ieee128 if IEEE
        128-bit floating point is enabled.  Change tests from using
        -mfloat128-type to -mfloat128.
        (rs6000_mangle_type): Use the correct mangling for the __float128
        type even if normal long double is restricted to 64-bits.
        (floatn_mode): Enable the _Float128 type by default on VSX Linux
        systems.
        * config/rs6000/rs6000.h (MASK_FLOAT128_TYPE): Delete.
        (MASK_FLOAT128_KEYWORD): Define new shortcut macro.
        (RS6000BTM_FLOAT128): Define in terms of -mfloat128, not
        -mfloat128-type.
        * doc/invoke.texi (RS/6000 and PowerPC Options): Update
        documentation for -mfloat128.

2017-09-06  Olivier Hainque  <hainque@adacore.com>

        * config.gcc (powerpc-wrs-vxworksspe): Now match as vxworks*spe.

2017-09-06  Wish Wu  <wishwu007@gmail.com>
            Jakub Jelinek  <jakub@redhat.com>

        * asan.c (initialize_sanitizer_builtins): Add
        BT_FN_VOID_UINT8_UINT8, BT_FN_VOID_UINT16_UINT16,
        BT_FN_VOID_UINT32_UINT32, BT_FN_VOID_UINT64_UINT64,
        BT_FN_VOID_FLOAT_FLOAT, BT_FN_VOID_DOUBLE_DOUBLE and
        BT_FN_VOID_UINT64_PTR variables.
        * builtin-types.def (BT_FN_VOID_UINT8_UINT8): New fn type.
        (BT_FN_VOID_UINT16_UINT16): Likewise.
        (BT_FN_VOID_UINT32_UINT32): Likewise.
        (BT_FN_VOID_FLOAT_FLOAT): Likewise.
        (BT_FN_VOID_DOUBLE_DOUBLE): Likewise.
        (BT_FN_VOID_UINT64_PTR): Likewise.
        * common.opt (flag_sanitize_coverage): New variable.
        (fsanitize-coverage=trace-pc): Remove.
        (fsanitize-coverage=): Add.
        * flag-types.h (enum sanitize_coverage_code): New enum.
        * fold-const.c (fold_range_test): Disable non-short-circuit
        optimization if flag_sanitize_coverage.
        (fold_truth_andor): Likewise.
        * tree-ssa-ifcombine.c (ifcombine_ifandif): Likewise.
        * opts.c (COVERAGE_SANITIZER_OPT): Define.
        (coverage_sanitizer_opts): New array.
        (get_closest_sanitizer_option): Add OPTS argument, handle also
        OPT_fsanitize_coverage_.
        (parse_sanitizer_options): Adjusted to also handle
        OPT_fsanitize_coverage_.
        (common_handle_option): Add OPT_fsanitize_coverage_.
        * sancov.c (instrument_comparison, instrument_switch): New function.
        (sancov_pass): Add trace-cmp support.
        * sanitizer.def (BUILT_IN_SANITIZER_COV_TRACE_CMP1,
        BUILT_IN_SANITIZER_COV_TRACE_CMP2, BUILT_IN_SANITIZER_COV_TRACE_CMP4,
        BUILT_IN_SANITIZER_COV_TRACE_CMP8,
        BUILT_IN_SANITIZER_COV_TRACE_CONST_CMP1,
        BUILT_IN_SANITIZER_COV_TRACE_CONST_CMP2,
        BUILT_IN_SANITIZER_COV_TRACE_CONST_CMP4,
        BUILT_IN_SANITIZER_COV_TRACE_CONST_CMP8,
        BUILT_IN_SANITIZER_COV_TRACE_CMPF, BUILT_IN_SANITIZER_COV_TRACE_CMPD,
        BUILT_IN_SANITIZER_COV_TRACE_SWITCH): New builtins.
        * doc/invoke.texi: Document -fsanitize-coverage=trace-cmp.

2017-09-06  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/parsecpu.awk (fatal): Note that we've encountered an
        error.  Only quit immediately if parsing is complete.
        (BEGIN): Initialize fatal_err and parse_done.
        (begin fpu, end fpu): Check number of arguments.
        (begin arch, end arch): Likewise.
        (begin cpu, end cpu): Likewise.
        (cname, tune for, tune flags, architecture, fpu, option): Likewise.
        (optalias): Likewise.

2017-09-06  Richard Earnshaw  <rearnsha@arm.com>

        * config.gcc (arm*-*-*): Don't add arm-isa.h to tm_p_file.
        * config/arm/arm-isa.h: Delete.  Move definitions to ...
        * arm-cpus.in: ... here.  Use new feature and fgroup values.
        * config/arm/arm.c (arm_option_override): Use lower case for feature
        bit names.
        * config/arm/arm.h (TARGET_HARD_FLOAT): Likewise.
        (TARGET_VFP3, TARGET_VFP5, TARGET_FMA): Likewise.
        * config/arm/parsecpu.awk (END): Add new command 'isa'.
        (isa_pfx): Delete.
        (print_isa_bits_for): New function.
        (gen_isa): New function.
        (gen_comm_data): Use print_isa_bits_for.
        (define feature): New keyword.
        (define fgroup): New keyword.
        * config/arm/t-arm (OPTIONS_H_EXTRA): Add arm-isa.h
        (arm-isa.h): Add rule to generate file.
        * common/config/arm/arm-common.c: (arm_canon_arch_option): Use lower
        case for feature bit names.

2017-09-06  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c (NECESSARY): Remove.
        (create_expression_by_pieces): Do not touch pass-local flags.
        (insert_into_preds_of_block): Likewise.
        (do_pre_regular_insertion): Likewise.
        (eliminate_insert): Likewise.
        (eliminate_dom_walker::before_dom_children): Likewise.
        (fini_eliminate): Do not look at inserted_exprs.
        (mark_operand_necessary): Remove.
        (remove_dead_inserted_code): Replace with simple work-list
        algorithm based on inserted_exprs and SSA uses.
        (pass_pre::execute): Re-order fini_eliminate and
        remove_dead_inserted_code.

2017-09-06  Olivier Hainque  <hainque@adacore.com>

        * config/powerpcspe/vxworks.h (VXCPU_FOR_8548): Correct definition
        for VxWorks 7.  Adjust surrounding comments.

2017-09-06  Richard Biener  <rguenther@suse.de>

        * gimple-ssa-strength-reduction.c
        (find_candidates_dom_walker::before_dom_children): Also allow
        pointer types.

2017-09-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82108
        * tree-vect-stmts.c (vectorizable_load): Fix pointer adjustment
        for gap in the non-permutation SLP case.

2017-09-06  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/82078
        * tree-sra.c (sort_and_splice_var_accesses): Move call to
        add_access_to_work_queue...
        (build_accesses_from_assign): ...here.
        (propagate_all_subaccesses): Make sure racc is the group
        representative, if there is one.

2017-09-06  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/82095
        * varasm.c (categorize_decl_for_section): Use SECCAT_TBSS for TLS vars with
        NULL DECL_INITIAL.

2017-09-06  Richard Biener  <rguenther@suse.de>

        * gimple-ssa-strength-reduction.c
        (find_candidates_dom_walker::before_doom_children): Use a
        type and not a mode check.

2017-09-06  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR target/77308
        * config/arm/predicates.md (arm_general_adddi_operand): Create new
        non-vfp predicate.
        * config/arm/arm.md (*arm_adddi3, *arm_subdi3): Use new predicates.

2017-09-05  Jeff Law  <law@redhat.com>

        PR tree-optimization/64910
        * tree-ssa-reassoc.c (reassociate_bb): Restrict last change to
        cases where we have 3 or more operands.

2017-09-05  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/81768
        * omp-low.c (lower_omp_for): Recompute tree invariant if
        gimple_omp_for_initial/final is ADDR_EXPR.

        PR middle-end/81768
        * omp-expand.c (expand_omp_simd): Force second operands of COND_EXPR
        into gimple val before gimplification fo the COND_EXPR.

2017-09-05  Aldy Hernandez  <aldyh@redhat.com>

        * tree-ssa-threadupdate.c (duplicate_thread_path): Remove unused
        REGION_COPY argument.
        (thread_through_all_blocks): Remove unused argument to
        duplicate_thread_path.

2017-09-05  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_gen_adjusted_ldpstp):
        Take a scalar_mode rather than a machine_mode.
        (aarch64_operands_adjust_ok_for_ldpstp): Likewise.
        * config/aarch64/aarch64.c (aarch64_simd_container_mode): Likewise.
        (aarch64_operands_adjust_ok_for_ldpstp): Likewise.
        (aarch64_gen_adjusted_ldpstp): Likewise.
        (aarch64_expand_vector_init): Use scalar_mode instead of machine_mode.

2017-09-05  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_is_extend_from_extract):
        Take a scalar_int_mode instead of a machine_mode.
        (aarch64_mask_and_shift_for_ubfiz_p): Likewise.
        (aarch64_output_scalar_simd_mov_immediate): Likewise.
        (aarch64_simd_scalar_immediate_valid_for_move): Likewise.
        (aarch64_simd_attr_length_rglist): Delete.
        * config/aarch64/aarch64.c (aarch64_is_extend_from_extract): Take
        a scalar_int_mode instead of a machine_mode.
        (aarch64_add_offset): Likewise.
        (aarch64_internal_mov_immediate): Likewise
        (aarch64_add_constant_internal): Likewise.
        (aarch64_add_constant): Likewise.
        (aarch64_movw_imm): Likewise.
        (aarch64_rtx_arith_op_extract_p): Likewise.
        (aarch64_mask_and_shift_for_ubfiz_p): Likewise.
        (aarch64_simd_scalar_immediate_valid_for_move): Likewise.
        Remove assert that the mode isn't a vector.
        (aarch64_output_scalar_simd_mov_immediate): Likewise.
        (aarch64_expand_mov_immediate): Update calls after above changes.
        (aarch64_output_casesi): Use as_a <scalar_int_mode>.
        (aarch64_and_bitmask_imm): Check for scalar integer modes.
        (aarch64_move_imm): Likewise.
        (aarch64_can_const_movi_rtx_p): Likewise.
        (aarch64_strip_extend): Likewise.
        (aarch64_extr_rtx_p): Likewise.
        (aarch64_rtx_costs): Likewise, using wode_mode as the mode of
        a CONST_INT when the mode parameter is VOIDmode.
        (aarch64_float_const_rtx_p): Use scalar_int_mode for a temporary.

2017-09-05  Richard Sandiford  <richard.sandiford@linaro.org>

        * machmode.h (bitwise_mode_for_mode): Return opt_mode.
        * stor-layout.c (bitwise_mode_for_mode): Likewise.
        (bitwise_type_for_mode): Update accordingly.

2017-09-05  Richard Sandiford  <richard.sandiford@linaro.org>

        * stor-layout.h (mode_for_size_tree): Return an opt_mode.
        * stor-layout.c (mode_for_size_tree): Likewise.
        (mode_for_array): Update accordingly.
        (layout_decl): Likewise.
        (compute_record_mode): Likewise.  Only set the mode once.

2017-09-05  Richard Sandiford  <richard.sandiford@linaro.org>

        * target.def (get_mask_mode): Change return type to opt_mode.
        Expand commentary.
        * doc/tm.texi: Regenerate.
        * targhooks.h (default_get_mask_mode): Return an opt_mode.
        * targhooks.c (default_get_mask_mode): Likewise.
        * config/i386/i386.c (ix86_get_mask_mode): Likewise.
        * optabs-query.c (can_vec_mask_load_store_p): Update use of
        targetm.get_mask_mode.
        * tree.c (build_truth_vector_type): Likewise.

2017-09-05  Richard Sandiford  <richard.sandiford@linaro.org>

        * machmode.h (mode_for_vector): Return an opt_mode.
        * stor-layout.c (mode_for_vector): Likewise.
        (mode_for_int_vector): Update accordingly.
        (layout_type): Likewise.
        * config/i386/i386.c (emit_memmov): Likewise.
        (ix86_expand_set_or_movmem): Likewise.
        (ix86_expand_vector_init): Likewise.
        (ix86_get_mask_mode): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_expand_vec_perm_const_1):
        Likewise.
        * config/rs6000/rs6000.c (rs6000_expand_vec_perm_const_1): Likewise.
        * expmed.c (extract_bit_field_1): Likewise.
        * expr.c (expand_expr_real_2): Likewise.
        * optabs-query.c (can_vec_perm_p): Likewise.
        (can_vec_mask_load_store_p): Likewise.
        * optabs.c (expand_vec_perm): Likewise.
        * targhooks.c (default_get_mask_mode): Likewise.
        * tree-vect-stmts.c (vectorizable_store): Likewise.
        (vectorizable_load): Likewise.
        (get_vectype_for_scalar_type_and_size): Likewise.

2017-09-05  Richard Sandiford  <richard.sandiford@linaro.org>

        * machmode.h (mode_for_int_vector): New function.
        * stor-layout.c (mode_for_int_vector): Likewise.
        * config/aarch64/aarch64.c (aarch64_emit_approx_sqrt): Use it.
        * config/powerpcspe/powerpcspe.c (rs6000_do_expand_vec_perm): Likewise.
        * config/rs6000/rs6000.c (rs6000_do_expand_vec_perm): Likewise.
        * config/s390/s390.c (s390_expand_vec_compare_cc): Likewise.
        (s390_expand_vcond): Likewise.

2017-09-05  Richard Sandiford  <richard.sandiford@linaro.org>

        * machmode.h (opt_machine_mode): New type.
        (opt_mode<T>): Allow construction from anything that can be
        converted to a T.
        (is_a, as_a, dyn_cast): Add overloads for opt_mode.
        (mode_for_size): Return an opt_machine_mode.
        * stor-layout.c (mode_for_size): Likewise.
        (mode_for_size_tree): Update call accordingly.
        (bitwise_mode_for_mode): Likewise.
        (make_fract_type): Likewise.
        (make_accum_type): Likewise.
        * caller-save.c (replace_reg_with_saved_mem): Update call
        accordingly.
        * config/alpha/alpha.h (SECONDARY_MEMORY_NEEDED_MODE): Likewise.
        * config/i386/i386.h (SECONDARY_MEMORY_NEEDED_MODE): Likewise.
        * config/s390/s390.h (SECONDARY_MEMORY_NEEDED_MODE): Likewise.
        * config/sparc/sparc.h (SECONDARY_MEMORY_NEEDED_MODE): Likewise.
        * expmed.c (extract_bit_field_1): Likewise.
        * reload.c (get_secondary_mem): Likewise.
        * varasm.c (assemble_integer): Likewise.
        * lower-subreg.c (simplify_subreg_concatn): Likewise.  Move
        early-out.

2017-09-05  Richard Sandiford  <richard.sandiford@linaro.org>

        * machmode.h (decimal_float_mode_for_size): New function.
        * real.h (REAL_VALUE_TO_TARGET_LONG_DOUBLE): Use float_mode_for_size.
        (REAL_VALUE_TO_TARGET_DOUBLE): Likewise.
        (REAL_VALUE_TO_TARGET_SINGLE): Likewise.
        (REAL_VALUE_TO_TARGET_DECIMAL128): Use decimal_float_mode_for_size.
        (REAL_VALUE_TO_TARGET_DECIMAL64): Likewise.
        (REAL_VALUE_TO_TARGET_DECIMAL32): Likewise.

2017-09-05  Richard Sandiford  <richard.sandiford@linaro.org>

        * builtins.c (expand_builtin_powi): Use int_mode_for_size.
        (get_builtin_sync_mode): Likewise.
        (expand_ifn_atomic_compare_exchange): Likewise.
        (expand_builtin_atomic_clear): Likewise.
        (expand_builtin_atomic_test_and_set): Likewise.
        (fold_builtin_atomic_always_lock_free): Likewise.
        * calls.c (compute_argument_addresses): Likewise.
        (emit_library_call_value_1): Likewise.
        (store_one_arg): Likewise.
        * combine.c (combine_instructions): Likewise.
        * config/aarch64/aarch64.c (aarch64_function_value): Likewise.
        * config/arm/arm.c (arm_function_value): Likewise.
        (aapcs_allocate_return_reg): Likewise.
        * config/c6x/c6x.c (c6x_expand_movmem): Likewise.
        * config/i386/i386.c (construct_container): Likewise.
        (ix86_gimplify_va_arg): Likewise.
        (ix86_expand_sse_cmp): Likewise.
        (emit_memmov): Likewise.
        (emit_memset): Likewise.
        (expand_small_movmem_or_setmem): Likewise.
        (ix86_expand_pextr): Likewise.
        (ix86_expand_pinsr): Likewise.
        * config/lm32/lm32.c (lm32_block_move_inline): Likewise.
        * config/microblaze/microblaze.c (microblaze_block_move_straight):
        Likewise.
        * config/mips/mips.c (mips_function_value_1) Likewise.
        (mips_block_move_straight): Likewise.
        (mips_expand_ins_as_unaligned_store): Likewise.
        * config/powerpcspe/powerpcspe.c
        (rs6000_darwin64_record_arg_advance_flush): Likewise.
        (rs6000_darwin64_record_arg_flush): Likewise.
        * config/rs6000/rs6000.c
        (rs6000_darwin64_record_arg_advance_flush): Likewise.
        (rs6000_darwin64_record_arg_flush): Likewise.
        * config/sparc/sparc.c (sparc_function_arg_1): Likewise.
        (sparc_function_value_1): Likewise.
        * config/spu/spu.c (adjust_operand): Likewise.
        (spu_emit_branch_or_set): Likewise.
        (arith_immediate_p): Likewise.
        * emit-rtl.c (gen_lowpart_common): Likewise.
        * expr.c (expand_expr_real_1): Likewise.
        * function.c (assign_parm_setup_block): Likewise.
        * gimple-ssa-store-merging.c (encode_tree_to_bitpos): Likewise.
        * reload1.c (alter_reg): Likewise.
        * stor-layout.c (mode_for_vector): Likewise.
        (layout_type): Likewise.

2017-09-05  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/spu/spu.c (exp2_immediate_p): Use int_mode_for_mode.
        (spu_convert_move): Likewise.
        * lower-subreg.c (resolve_simple_move): Likewise.

2017-09-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/81833
        * config/rs6000/altivec.md (altivec_vsum2sws): Convert from a
        define_insn to a define_expand.
        (altivec_vsum2sws_direct): New define_insn.
        (altivec_vsumsws): Convert from a define_insn to a define_expand.

2017-09-05  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.c (arm_option_params_internal): Improve setting of
        max_insns_skipped.

2017-09-05  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/59501
        PR target/81624
        PR target/81769
        * config/i386/i386.c (ix86_finalize_stack_frame_flags): Don't
        realign stack if stack alignment needed is less than incoming
        stack boundary.

2017-09-05  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/82072
        * convert.c (convert_to_integer_1) <case NEGATE_EXPR>: Move the ubsan
        check earlier.

2017-09-05  Wilco Dijkstra  <wdijkstr@arm.com>

        * explow.c (get_dynamic_stack_size): Improve dynamic alignment.

2017-09-05  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82084
        * fold-const.c (can_native_encode_string_p): Handle wide characters.

2017-09-05  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82102
        * tree-ssa-pre.c (fini_eliminate): Check if lhs is NULL.

2017-09-05  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/82032
        * tree-cfg.c (generate_range_test): New function.
        * tree-cfg.h (generate_range_test): Declared here.
        * tree-cfgcleanup.c (convert_single_case_switch): New function.
        (cleanup_control_expr_graph): Use it.
        * tree-switch-conversion.c (try_switch_expansion): Remove
        assert.
        (emit_case_nodes): Use generate_range_test.

2017-09-04  Uros Bizjak  <ubizjak@gmail.com>

        PR target/82098
        * config/i386/i386.md (*<btsc><mode>_mask): Add
        TARGET_USE_BT to insn constraint.
        (*btr<mode>_mask): Ditto.

2017-09-04  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.c (arm_legitimate_index_p): Add comment.
        (thumb2_legitimate_index_p): Use correct range for DI/DF mode.

2017-09-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR target/77308
        * config/arm/arm.md (*arm_adddi3, *arm_subdi3): Split early except for
        TARGET_NEON and TARGET_IWMMXT.
        (anddi3, iordi3, xordi3, one_cmpldi2): Split while expanding except for
        TARGET_NEON and TARGET_IWMMXT.
        (*one_cmpldi2_insn): Moved the body of one_cmpldi2 here.

2017-09-04  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-protos.h (ix86_tls_address_pattern_p) New prototype.
        (ix86_rewrite_tls_address): Ditto.
        * config/i386/i386.c (ix86_tls_address_pattern_p) New function.
        (ix86_rewrite_tls_address_1): Ditto.
        (ix86_rewrite_tls_address): Ditto.
        * config/i386/predicates.md (tls_address_pattern): New predicate.
        * config/i386/i386.md (TLS address splitter): New splitter.

2017-09-04  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82084
        * fold-const.h (can_native_encode_string_p): Declare.
        * fold-const.c (can_native_encode_string_p): Factor out from ...
        (native_encode_string): ... here.
        * tree-vect-stmts.c (vectorizable_store): Call it to avoid
        vectorizing stores from constants we later cannot handle.

2017-09-04  Marek Polacek  <polacek@redhat.com>

        PR c/81783
        * doc/invoke.texi: Update -Wtautological-compare documentation.

2017-09-04  Jeff Law  <law@redhat.com>

        PR tree-optimization/64910
        * tree-ssa-reassoc.c (reassociate_bb): For bitwise binary ops,
        swap the first and last operand if the last is a constant.

2017-09-04  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/82072
        * convert.c (do_narrow): When sanitizing signed integer overflows,
        bail out for signed types.
        (convert_to_integer_1) <case NEGATE_EXPR>: Likewise.

2017-09-04  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/82060
        * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
        Move devirtualization after stmt folding and before EH/AB/noreturn
        cleanup to get the stmt refs canonicalized.  Use a bool instead
        of gimple_modified_p since that doesn't work for NOPs.  Schedule
        NOPs generated by folding for removal.

2017-09-04  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * coretypes.h (pad_direction): New enum.
        * defaults.h (DEFAULT_FUNCTION_ARG_PADDING): Delete.
        (FUNCTION_ARG_PADDING): Likewise.
        * target.def (function_arg_padding): New hook.
        * targhooks.h (default_function_arg_padding): Declare.
        * targhooks.c (default_function_arg_padding): New function.
        * doc/tm.texi.in (FUNCTION_ARG_PADDING): Replace with...
        (TARGET_FUNCTION_ARG_PADDING): ...this.
        * doc/tm.texi: Regenerate.
        * calls.c (store_unaligned_arguments_into_pseudos): Use pad_direction
        instead of direction.
        (compute_argument_addresses): Likewise.
        (load_register_parameters): Likewise.
        (emit_library_call_value_1): Likewise.
        (store_one_arg): Use targetm.calls.function_arg_padding instead
        of FUNCTION_ARG_PADDING.
        (must_pass_in_stack_var_size_or_pad): Likewise.
        * expr.c (emit_group_load_1): Use pad_direction instead of direction.
        (emit_group_store): Likewise.
        (emit_single_push_insn_1): Use targetm.calls.function_arg_padding
        instead of FUNCTION_ARG_PADDING.
        (emit_push_insn): Likewise, and propagate enum change throughout
        function.
        * function.h (direction): Delete.
        (locate_and_pad_arg_data::where_pad): Use pad_direction instead
        of direction.
        * function.c (assign_parm_find_stack_rtl): Likewise.
        (assign_parm_setup_block_p): Likewise.
        (assign_parm_setup_block): Likewise.
        (gimplify_parameters): Likewise.
        (locate_and_pad_parm): Use targetm.calls.function_arg_padding
        instead of FUNCTION_ARG_PADDING, and propagate enum change throughout
        function.
        * config/aarch64/aarch64.h (FUNCTION_ARG_PADDING): Delete.
        (BLOCK_REG_PADDING): Use pad_direction instead of direction.
        * config/aarch64/aarch64-protos.h (aarch64_pad_arg_upward): Delete.
        * config/aarch64/aarch64.c (aarch64_pad_arg_upward): Replace with...
        (aarch64_function_arg_padding): ...this new function.
        (aarch64_gimplify_va_arg_expr): Use pad_direction instead of direction.
        (TARGET_FUNCTION_ARG_PADDING): Redefine.
        * config/arm/arm.h (FUNCTION_ARG_PADDING): Delete.
        (BLOCK_REG_PADDING): Use pad_direction instead of direction.
        * config/arm/arm-protos.h (arm_pad_arg_upward): Delete.
        * config/arm/arm.c (TARGET_FUNCTION_ARG_PADDING): Redefine.
        (arm_pad_arg_upward): Replace with...
        (arm_function_arg_padding): ...this new function.
        * config/c6x/c6x.h (BLOCK_REG_PADDING): Use pad_direction instead
        of direction.
        * config/ia64/hpux.h (FUNCTION_ARG_PADDING): Delete.
        * config/ia64/ia64-protos.h (ia64_hpux_function_arg_padding): Delete.
        * config/ia64/ia64.c (TARGET_FUNCTION_ARG_PADDING): Redefine.
        (ia64_hpux_function_arg_padding): Replace with...
        (ia64_function_arg_padding): ...this new function.  Use pad_direction
        instead of direction.  Check for TARGET_HPUX.
        * config/iq2000/iq2000.h (FUNCTION_ARG_PADDING): Delete.
        * config/iq2000/iq2000.c (TARGET_FUNCTION_ARG_PADDING): Redefine.
        (iq2000_function_arg_padding): New function.
        * config/mips/mips-protos.h (mips_pad_arg_upward): Delete.
        * config/mips/mips.c (mips_pad_arg_upward): Replace with...
        (mips_function_arg_padding): ...this new function.
        (mips_pad_reg_upward): Update accordingly.
        (TARGET_FUNCTION_ARG_PADDING): Redefine.
        * config/mips/mips.h (PAD_VARARGS_DOWN): Use
        targetm.calls.function_arg_padding.
        (FUNCTION_ARG_PADDING): Delete.
        (BLOCK_REG_PADDING): Use pad_direction instead of direction.
        * config/nios2/nios2.h (FUNCTION_ARG_PADDING): Delete.
        (PAD_VARARGS_DOWN): Use targetm.calls.function_arg_padding.
        * config/nios2/nios2-protos.h (nios2_function_arg_padding): Delete.
        (nios2_block_reg_padding): Return pad_direction instead of direction.
        * config/nios2/nios2.c (nios2_block_reg_padding): Return pad_direction
        instead of direction.
        (nios2_function_arg_padding): Likewise.  Make static.
        (TARGET_FUNCTION_ARG_PADDING): Redefine.
        * config/pa/pa.h (FUNCTION_ARG_PADDING): Delete.
        (BLOCK_REG_PADDING): Use targetm.calls.function_arg_padding.
        * config/pa/pa-protos.h (pa_function_arg_padding): Delete.
        * config/pa/pa.c (TARGET_FUNCTION_ARG_PADDING): Redefine.
        (pa_function_arg_padding): Make static.  Return pad_direction instead
        of direction.
        * config/powerpcspe/powerpcspe.h (FUNCTION_ARG_PADDING): Delete.
        (PAD_VARARGS_DOWN): Use targetm.calls.function_arg_padding.
        * config/powerpcspe/aix.h (BLOCK_REG_PADDING): Use pad_direction
        instead of direction.  Use targetm.calls.function_arg_padding.
        * config/powerpcspe/darwin.h (BLOCK_REG_PADDING): Likewise.
        * config/powerpcspe/freebsd64.h (BLOCK_REG_PADDING): Likewise.
        * config/powerpcspe/linux64.h (BLOCK_REG_PADDING): Likewise.
        * config/powerpcspe/powerpcspe-protos.h (function_arg_padding): Delete.
        * config/powerpcspe/powerpcspe.c (TARGET_FUNCTION_ARG_PADDING):
        Redefine.
        (function_arg_padding): Rename to...
        (rs6000_function_arg_padding): ...this.  Make static.  Return
        pad_direction instead of direction.
        (rs6000_return_in_msb): Use rs6000_function_arg_padding.
        * config/rs6000/rs6000.h (FUNCTION_ARG_PADDING): Delete.
        (PAD_VARARGS_DOWN): Use targetm.calls.function_arg_padding.
        * config/rs6000/aix.h (BLOCK_REG_PADDING): Use pad_direction
        instead of direction.  Use targetm.calls.function_arg_padding.
        * config/rs6000/darwin.h (BLOCK_REG_PADDING): Likewise.
        * config/rs6000/freebsd64.h (BLOCK_REG_PADDING): Likewise.
        * config/rs6000/linux64.h (BLOCK_REG_PADDING): Likewise.
        * config/rs6000/rs6000-protos.h (function_arg_padding): Delete.
        * config/rs6000/rs6000.c (TARGET_FUNCTION_ARG_PADDING): Redefine.
        (function_arg_padding): Rename to...
        (rs6000_function_arg_padding): ...this.  Make static.  Return
        pad_direction instead of direction.
        (rs6000_return_in_msb): Use rs6000_function_arg_padding.
        * config/s390/s390.h (FUNCTION_ARG_PADDING): Delete.
        * config/s390/s390.c (s390_function_arg_padding): New function.
        (TARGET_FUNCTION_ARG_PADDING): Redefine.
        * config/sparc/sparc.h (FUNCTION_ARG_PADDING): Delete.
        * config/sparc/sparc-protos.h (function_arg_padding): Delete.
        * config/sparc/sparc.c (TARGET_FUNCTION_ARG_PADDING): Redefine.
        (function_arg_padding): Rename to...
        (sparc_function_arg_padding): ...this.  Make static.  Return
        pad_direction instead of direction.
        * config/spu/spu.h (FUNCTION_ARG_PADDING): Delete.
        * config/spu/spu.c (spu_function_arg_padding): New function.
        (TARGET_FUNCTION_ARG_PADDING): Redefine.
        * system.h (FUNCTION_ARG_PADDING): Poison.

2017-09-04  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (modes_tieable_p): New hook.
        * doc/tm.texi (MODES_TIEABLE_P): Replace with...
        (TARGET_MODES_TIEABLE_P): ...this.
        * doc/tm.texi.in: Regenerate.
        * hooks.h (hook_bool_mode_mode_true): Declare.
        * hooks.c (hook_bool_mode_mode_true): New function.
        * combine.c (subst): Use targetm.modes_tieable_p instead of
        MODES_TIEABLE_P.
        * dse.c (find_shift_sequence): Likewise.
        * expmed.c (extract_low_bits): Likewise.
        * lower-subreg.c: Include target.h.
        (find_decomposable_subregs): Use targetm.modes_tieable_p instead of
        MODES_TIEABLE_P.
        * rtlanal.c (rtx_cost): Likewise.
        * config/aarch64/aarch64.h (MODES_TIEABLE_P): Delete.
        * config/aarch64/aarch64-protos.h (aarch64_modes_tieable_p): Delete.
        * config/aarch64/aarch64.c (aarch64_modes_tieable_p): Make static.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/alpha/alpha.h (MODES_TIEABLE_P): Delete.
        * config/alpha/alpha.c (alpha_modes_tieable_p): New function.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/arc/arc.h (MODES_TIEABLE_P): Delete.
        * config/arc/arc.c (TARGET_MODES_TIEABLE_P): Redefine.
        (arc_modes_tieable_p): New function.
        * config/arm/arm.h (MODES_TIEABLE_P): Delete.
        * config/arm/arm-protos.h (arm_modes_tieable_p): Delete.
        * config/arm/arm.c (TARGET_MODES_TIEABLE_P): Redefine.
        (arm_modes_tieable_p): Make static.
        * config/avr/avr.h (MODES_TIEABLE_P): Delete.
        * config/bfin/bfin.h (MODES_TIEABLE_P): Delete.
        * config/bfin/bfin.c (bfin_modes_tieable_p): New function.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/c6x/c6x.h (MODES_TIEABLE_P): Delete.
        * config/c6x/c6x.c (c6x_modes_tieable_p): New function.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/cr16/cr16.h (MODES_TIEABLE_P): Delete.
        * config/cr16/cr16.c (TARGET_MODES_TIEABLE_P): Redefine.
        (cr16_modes_tieable_p): New function.
        * config/cris/cris.h (MODES_TIEABLE_P): Delete.
        * config/epiphany/epiphany.h (MODES_TIEABLE_P): Delete.
        * config/fr30/fr30.h (MODES_TIEABLE_P): Delete.
        (TRULY_NOOP_TRUNCATION): Update comment.
        * config/frv/frv.h (MODES_TIEABLE_P): Delete.
        (TRULY_NOOP_TRUNCATION): Update comment.
        * config/frv/frv.c (TARGET_MODES_TIEABLE_P): Redefine.
        (frv_modes_tieable_p): New function.
        * config/ft32/ft32.h (MODES_TIEABLE_P): Delete.
        * config/h8300/h8300.h (MODES_TIEABLE_P): Delete.
        * config/h8300/h8300.c (h8300_modes_tieable_p): New function.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/i386/i386.h (MODES_TIEABLE_P): Delete.
        * config/i386/i386-protos.h (ix86_modes_tieable_p): Delete.
        * config/i386/i386.c (ix86_modes_tieable_p): Make static.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/ia64/ia64.h (MODES_TIEABLE_P): Delete.
        * config/ia64/ia64.c (TARGET_MODES_TIEABLE_P): Redefine.
        (ia64_modes_tieable_p): New function.
        * config/iq2000/iq2000.h (MODES_TIEABLE_P): Delete.
        * config/iq2000/iq2000.c (TARGET_MODES_TIEABLE_P): Redefine.
        (iq2000_modes_tieable_p): New function.
        * config/lm32/lm32.h (MODES_TIEABLE_P): Delete.
        * config/lm32/lm32.c (TARGET_MODES_TIEABLE_P): Redefine.
        (lm32_modes_tieable_p): New function.
        * config/m32c/m32c.h (MODES_TIEABLE_P): Delete.
        * config/m32c/m32c-protos.h (m32c_modes_tieable_p): Delete.
        * config/m32c/m32c.c (m32c_modes_tieable_p): Make static.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/m32r/m32r.h (MODES_TIEABLE_P): Delete.
        * config/m32r/m32r.c (TARGET_MODES_TIEABLE_P): Redefine.
        (m32r_modes_tieable_p): New function.
        * config/m68k/m68k.h (MODES_TIEABLE_P): Delete.
        * config/m68k/m68k.c (TARGET_MODES_TIEABLE_P): Redefine.
        (m68k_modes_tieable_p): New function.
        * config/mcore/mcore.h (MODES_TIEABLE_P): Delete.
        * config/mcore/mcore.c (TARGET_MODES_TIEABLE_P): Redefine.
        (mcore_modes_tieable_p): New function.
        * config/microblaze/microblaze.h (MODES_TIEABLE_P): Delete.
        * config/microblaze/microblaze.c (microblaze_modes_tieable_p): New
        function.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/mips/mips.h (MODES_TIEABLE_P): Delete.
        * config/mips/mips-protos.h (mips_modes_tieable_p): Delete.
        * config/mips/mips.c (mips_modes_tieable_p): Make static.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/mmix/mmix.h (MODES_TIEABLE_P): Delete.
        * config/mn10300/mn10300.h (MODES_TIEABLE_P): Delete.
        * config/mn10300/mn10300-protos.h (mn10300_modes_tieable): Delete.
        * config/mn10300/mn10300.c (mn10300_modes_tieable): Rename to...
        (mn10300_modes_tieable_p): ...this and make static.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/moxie/moxie.h (MODES_TIEABLE_P): Delete.
        * config/msp430/msp430.h (MODES_TIEABLE_P): Delete.
        * config/msp430/msp430-protos.h (msp430_modes_tieable_p): Delete.
        * config/msp430/msp430.c (TARGET_MODES_TIEABLE_P): Redefine.
        (msp430_modes_tieable_p): Make static.
        * config/nds32/nds32.h (MODES_TIEABLE_P): Delete.
        * config/nds32/nds32.c (nds32_modes_tieable_p): New function.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/nios2/nios2.h (MODES_TIEABLE_P): Delete.
        * config/nvptx/nvptx.h (MODES_TIEABLE_P): Delete.
        * config/nvptx/nvptx.c (nvptx_modes_tieable_p): New function.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/pa/pa.h (MODES_TIEABLE_P): Delete.
        * config/pa/pa-protos.h (pa_modes_tieable_p): Delete.
        * config/pa/pa.c (pa_modes_tieable_p): Make static.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/pdp11/pdp11.h (MODES_TIEABLE_P): Delete.
        * config/pdp11/pdp11.c (TARGET_MODES_TIEABLE_P): Redefine.
        (pdp11_modes_tieable_p): New function.
        * config/powerpcspe/powerpcspe.h (MODES_TIEABLE_P): Delete.
        * config/powerpcspe/powerpcspe.c (TARGET_MODES_TIEABLE_P): Redefine.
        (rs6000_modes_tieable_p): New function.
        (rs6000_debug_reg_global): Use it instead of MODES_TIEABLE_P.
        * config/powerpcspe/powerpcspe.md: Update comment.
        * config/riscv/riscv.h (MODES_TIEABLE_P): Delete.
        * config/riscv/riscv.c (riscv_modes_tieable_p): New function.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/rl78/rl78.h (MODES_TIEABLE_P): Delete.
        * config/rl78/rl78.c (TARGET_MODES_TIEABLE_P): Redefine.
        (rl78_modes_tieable_p): New function.
        * config/rs6000/rs6000.h (MODES_TIEABLE_P): Delete.
        * config/rs6000/rs6000.c (TARGET_MODES_TIEABLE_P): Redefine.
        (rs6000_modes_tieable_p): New function.
        (rs6000_debug_reg_global): Use it instead of MODES_TIEABLE_P.
        * config/rs6000/rs6000.md: Update comment.
        * config/rx/rx.h (MODES_TIEABLE_P): Delete.
        * config/rx/rx.c (rx_modes_tieable_p): New function.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/s390/s390.h (MODES_TIEABLE_P): Delete.
        * config/s390/s390.c (s390_modes_tieable_p): New function.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/sh/sh.h (MODES_TIEABLE_P): Delete.
        * config/sh/sh.c (TARGET_MODES_TIEABLE_P): Redefine.
        (sh_modes_tieable_p): New function.
        * config/sparc/sparc.h (MODES_TIEABLE_P): Delete.
        * config/sparc/sparc-protos.h (sparc_modes_tieable_p): Delete.
        * config/sparc/sparc.c (TARGET_MODES_TIEABLE_P): Redefine.
        (sparc_modes_tieable_p): Make static.
        * config/spu/spu.h (MODES_TIEABLE_P): Delete.
        * config/spu/spu.c (spu_modes_tieable_p): New function.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/stormy16/stormy16.h (MODES_TIEABLE_P): Delete.
        * config/stormy16/stormy16.c (xstormy16_modes_tieable_p): New function.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/tilegx/tilegx.h (MODES_TIEABLE_P): Delete.
        * config/tilepro/tilepro.h (MODES_TIEABLE_P): Delete.
        * config/v850/v850.h (MODES_TIEABLE_P): Delete.
        * config/v850/v850.c (v850_modes_tieable_p): New function.
        (TARGET_MODES_TIEABLE_P): Redefine.
        * config/vax/vax.h (MODES_TIEABLE_P): Delete.
        * config/visium/visium.h (MODES_TIEABLE_P): Delete.
        * config/visium/visium.c (TARGET_MODES_TIEABLE_P): Redefine.
        (visium_modes_tieable_p): New function.
        * config/xtensa/xtensa.h (MODES_TIEABLE_P): Delete.
        * config/xtensa/xtensa.c (TARGET_MODES_TIEABLE_P): Redefine.
        (xtensa_modes_tieable_p): New function.
        * system.h (MODES_TIEABLE_P): Poison.

2017-09-04  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (hard_regno_mode_ok): New hook.
        * doc/tm.texi (HARD_REGNO_MODE_OK): Replace with...
        (TARGET_HARD_REGNO_MODE_OK): ...this.
        * doc/tm.texi.in: Regenerate.
        * hooks.h (hook_bool_uint_mode_true): Declare.
        * hooks.c (hook_bool_uint_mode_true): New function.
        * doc/md.texi: Refer to targetm.hard_regno_mode_ok instead of
        HARD_REGNO_MODE_OK.
        * genpreds.c (write_insn_preds_c): Add an include of target.h.
        * alias.c (init_alias_target): Use targetm.hard_regno_mode_ok
        instead of HARD_REGNO_MODE_OK.
        * caller-save.c: Include target.h.
        (reg_save_code): Use targetm.hard_regno_mode_ok instead of
        HARD_REGNO_MODE_OK.
        * combine.c (can_combine_p): Likewise.
        (combinable_i3pat): Likewise.
        (can_change_dest_mode): Likewise.
        * expr.c (init_expr_target): Likewise.
        (convert_move): Likewise.
        (convert_modes): Likewise.
        * ira.c (setup_prohibited_class_mode_regs): Likewise.
        (setup_prohibited_mode_move_regs): Likewise.
        * ira.h (target_ira): Likewise.
        * lra-assigns.c (find_hard_regno_for_1): Likewise.
        * lra-constraints.c (process_alt_operands): Likewise.
        (split_reg): Likewise.
        * recog.c (peep2_find_free_register): Likewise.
        * ree.c (combine_reaching_defs): Likewise.
        * regcprop.c (maybe_mode_change): Likewise.
        * reginfo.c (init_reg_sets_1): Likewise.
        (choose_hard_reg_mode): Likewise.
        (simplifiable_subregs): Likewise.
        * regrename.c (check_new_reg_p): Likewise.
        * reload.c (find_valid_class): Likewise.
        (find_valid_class_1): Likewise.
        (reload_inner_reg_of_subreg): Likewise.
        (push_reload): Likewise.
        (combine_reloads): Likewise.
        (find_dummy_reload): Likewise.
        (find_reloads): Likewise.
        * reload1.c (find_reg): Likewise.
        (set_reload_reg): Likewise.
        (allocate_reload_reg): Likewise.
        (choose_reload_regs): Likewise.
        (reload_adjust_reg_for_temp): Likewise.
        * rtlanal.c (subreg_size_offset_from_lsb): Likewise.
        (simplify_subreg_regno): Likewise.
        * sel-sched.c (init_regs_for_mode): Likewise.
        * varasm.c (make_decl_rtl): Likewise.
        * config/aarch64/aarch64.h (HARD_REGNO_MODE_OK): Delete.
        (MODES_TIEABLE_P): Use targetm.hard_regno_mode_ok instead of
        HARD_REGNO_MODE_OK.
        * config/aarch64/aarch64-protos.h (aarch64_hard_regno_mode_ok): Delete.
        * config/aarch64/aarch64.c (aarch64_hard_regno_mode_ok): Make static.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/alpha/alpha.h (HARD_REGNO_MODE_OK): Delete.
        * config/alpha/alpha.c (alpha_hard_regno_mode_ok): New function.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/arc/arc.h (arc_hard_regno_mode_ok): Delete.
        (arc_mode_class): Delete.
        (HARD_REGNO_MODE_OK): Delete.
        * config/arc/arc.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (arc_hard_regno_mode_ok): Rename old array to...
        (arc_hard_regno_mode_ok_modes): ...this.
        (arc_conditional_register_usage): Update accordingly.
        (arc_mode_class): Make static.
        (arc_hard_regno_mode_ok): New function.
        * config/arm/arm.h (HARD_REGNO_MODE_OK): Delete.
        * config/arm/arm-protos.h (arm_hard_regno_mode_ok): Delete.
        * config/arm/arm.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (arm_hard_regno_mode_ok): Make static.
        * config/arm/arm.md (movdi): Use targetm.hard_regno_mode_ok instead of
        HARD_REGNO_MODE_OK.
        * config/avr/avr-protos.h (avr_hard_regno_mode_ok): Delete.
        * config/avr/avr.h (HARD_REGNO_MODE_OK): Delete.
        * config/avr/avr.c (avr_hard_regno_mode_ok): Make static and
        return a bool.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/bfin/bfin-protos.h (hard_regno_mode_ok): Delete.
        * config/bfin/bfin.h (HARD_REGNO_MODE_OK): Delete.
        * config/bfin/bfin.c (hard_regno_mode_ok): Rename to...
        (bfin_hard_regno_mode_ok): ...this.  Make static and return a bool.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/bfin/predicates.md (valid_reg_operand): Use
        targetm.hard_regno_mode_ok instead of HARD_REGNO_MODE_OK.
        * config/c6x/c6x.h (HARD_REGNO_MODE_OK): Delete.
        * config/c6x/c6x.c (c6x_hard_regno_mode_ok): New function.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/cr16/cr16.h (HARD_REGNO_MODE_OK): Delete.
        * config/cr16/cr16-protos.h (cr16_hard_regno_mode_ok): Delete.
        * config/cr16/cr16.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (cr16_hard_regno_mode_ok): Make static and return a bool.
        * config/cris/cris.h (HARD_REGNO_MODE_OK): Delete.
        * config/cris/cris.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (cris_hard_regno_mode_ok): New function.
        * config/epiphany/epiphany.h (epiphany_hard_regno_mode_ok): Delete.
        (epiphany_mode_class): Delete.
        (HARD_REGNO_MODE_OK): Delete.
        * config/epiphany/epiphany-protos.h (hard_regno_mode_ok): Delete.
        * config/epiphany/epiphany.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (hard_regno_mode_ok): Rename to...
        (epiphany_hard_regno_mode_ok): ...this.  Make static and return a bool.
        * config/fr30/fr30.h (HARD_REGNO_MODE_OK): Delete.
        * config/fr30/fr30.md: Refer to targetm.hard_regno_mode_ok instead of
        HARD_REGNO_MODE_OK.
        * config/frv/frv.h (HARD_REGNO_MODE_OK): Delete.
        * config/frv/frv-protos.h (frv_hard_regno_mode_ok): Delete.
        * config/frv/frv.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (frv_hard_regno_mode_ok): Make static and return a bool.
        * config/frv/frv.md: Refer to targetm.hard_regno_mode_ok instead of
        HARD_REGNO_MODE_OK.
        * config/ft32/ft32.h (HARD_REGNO_MODE_OK): Delete.
        * config/h8300/h8300.h (HARD_REGNO_MODE_OK): Delete.
        * config/h8300/h8300-protos.h (h8300_hard_regno_mode_ok): Delete.
        * config/h8300/h8300.c (h8300_hard_regno_mode_ok): Make static
        and return a bool.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/i386/i386.h (HARD_REGNO_MODE_OK): Delete.
        * config/i386/i386-protos.h (ix86_hard_regno_mode_ok): Delete.
        * config/i386/i386.c (ix86_hard_regno_mode_ok): Make static and
        return a bool.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/ia64/ia64.h (HARD_REGNO_MODE_OK): Delete.
        * config/ia64/ia64.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (ia64_hard_regno_mode_ok): New function.
        * config/iq2000/iq2000.h (HARD_REGNO_MODE_OK): Delete.
        * config/iq2000/iq2000.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (iq2000_hard_regno_mode_ok): New function.
        * config/lm32/lm32.h (HARD_REGNO_MODE_OK): Delete.
        * config/lm32/lm32.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (lm32_hard_regno_mode_ok): New function.
        * config/m32c/m32c.h (HARD_REGNO_MODE_OK): Delete.
        * config/m32c/m32c-protos.h (m32c_hard_regno_ok): Delete.
        * config/m32c/m32c.c (class_can_hold_mode): Use m32c_hard_regno_mode_ok
        instead of HARD_REGNO_MODE_OK.
        (m32c_hard_regno_ok): Rename to...
        (m32c_hard_regno_mode_ok): ...this.  Make static and return a bool.
        (m32c_cannot_change_mode_class): Update accordingly.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/m32r/m32r.h (m32r_hard_regno_mode_ok): Delete.
        (m32r_mode_class): Delete.
        (HARD_REGNO_MODE_OK): Delete.
        * config/m32r/m32r.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (m32r_hard_regno_mode_ok): Rename to...
        (m32r_hard_regno_modes): ...this.
        (m32r_mode_class): Make static.
        (m32r_hard_regno_mode_ok): New function.
        * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Delete.
        * config/m68k/m68k-protos.h (m68k_regno_mode_ok): Delete.
        * config/m68k/m68k.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (m68k_hard_regno_mode_ok): Make static.
        * config/mcore/mcore.h (HARD_REGNO_MODE_OK): Delete.
        * config/mcore/mcore.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (mcore_hard_regno_mode_ok): New function.
        * config/microblaze/microblaze.h (microblaze_hard_regno_mode_ok)
        (HARD_REGNO_MODE_OK): Delete.
        * config/microblaze/microblaze.c (microblaze_hard_regno_mode_ok):
        Rename to...
        (microblaze_hard_regno_mode_ok_p): ...this and make static.
        (microblaze_hard_regno_mode_ok): New function.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/mips/mips.h (HARD_REGNO_MODE_OK): Delete.
        (mips_hard_regno_mode_ok): Delete.
        * config/mips/mips.c (mips_hard_regno_mode_ok): Rename to...
        (mips_hard_regno_mode_ok_p): ...this and make static.
        (mips_hard_regno_mode_ok_p): Rename to...
        (mips_hard_regno_mode_ok_uncached): ...this.
        (mips_hard_regno_mode_ok): New function.
        (mips_class_max_nregs): Use mips_hard_regno_mode_ok instead
        of HARD_REGNO_MODE_OK.
        (mips_option_override): Update after above name changes.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/mmix/mmix.h (HARD_REGNO_MODE_OK): Delete.
        * config/mn10300/mn10300.h (HARD_REGNO_MODE_OK): Delete.
        * config/mn10300/mn10300-protos.h (mn10300_hard_regno_mode_ok): Delete.
        * config/mn10300/mn10300.c (mn10300_hard_regno_mode_ok): Make static.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/moxie/moxie.h (HARD_REGNO_MODE_OK): Delete.
        * config/msp430/msp430.h (HARD_REGNO_MODE_OK): Delete.
        * config/msp430/msp430-protos.h (msp430_hard_regno_mode_ok): Delete.
        * config/msp430/msp430.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (msp430_hard_regno_mode_ok): Make static and return a bool.
        * config/nds32/nds32.h (HARD_REGNO_MODE_OK): Delete.
        * config/nds32/nds32-protos.h (nds32_hard_regno_mode_ok): Delete.
        * config/nds32/nds32.c (nds32_hard_regno_mode_ok): Make static
        and return a bool.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/nios2/nios2.h (HARD_REGNO_MODE_OK): Delete.
        * config/nvptx/nvptx.h (HARD_REGNO_MODE_OK): Delete.
        * config/pa/pa.h (MODES_TIEABLE_P): Update commentary.
        * config/pa/pa32-regs.h (HARD_REGNO_MODE_OK): Rename to...
        (PA_HARD_REGNO_MODE_OK): ...this
        * config/pa/pa64-regs.h (HARD_REGNO_MODE_OK): Rename to...
        (PA_HARD_REGNO_MODE_OK): ...this.
        * config/pa/pa.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (pa_hard_regno_mode_ok): New function.
        * config/pdp11/pdp11.h (HARD_REGNO_MODE_OK): Delete.
        * config/pdp11/pdp11.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (pdp11_hard_regno_mode_ok): New function.
        * config/powerpcspe/powerpcspe.h (HARD_REGNO_MODE_OK): Delete.
        * config/powerpcspe/powerpcspe-protos.h (rs6000_hard_regno_mode_ok_p):
        Delete.
        * config/powerpcspe/powerpcspe.c (rs6000_hard_regno_mode_ok_p):
        Make static.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (rs6000_hard_regno_mode_ok): Rename to...
        (rs6000_hard_regno_mode_ok_uncached): ...this.
        (rs6000_init_hard_regno_mode_ok): Update accordingly.
        (rs6000_hard_regno_mode_ok): New function.
        * config/riscv/riscv.h (HARD_REGNO_MODE_OK): Delete.
        * config/riscv/riscv-protos.h (riscv_hard_regno_mode_ok_p): Delete.
        * config/riscv/riscv.c (riscv_hard_regno_mode_ok_p): Rename to...
        (riscv_hard_regno_mode_ok): ...this and make static.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/rl78/rl78.h (HARD_REGNO_MODE_OK): Delete.
        * config/rl78/rl78-protos.h (rl78_hard_regno_mode_ok): Delete.
        * config/rl78/rl78.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (rl78_hard_regno_mode_ok): Make static and return bool.
        * config/rs6000/rs6000.h (HARD_REGNO_MODE_OK): Delete.
        * config/rs6000/rs6000-protos.h (rs6000_hard_regno_mode_ok_p):
        Delete.
        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok_p): Make static.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (rs6000_hard_regno_mode_ok): Rename to...
        (rs6000_hard_regno_mode_ok_uncached): ...this.
        (rs6000_init_hard_regno_mode_ok): Update accordingly.
        (rs6000_hard_regno_mode_ok): New function.
        * config/rx/rx.h (HARD_REGNO_MODE_OK): Delete.
        * config/rx/rx.c (rx_hard_regno_mode_ok): New function.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/s390/s390.h (HARD_REGNO_MODE_OK): Delete.
        * config/s390/s390-protos.h (s390_hard_regno_mode_ok): Delete.
        * config/s390/s390.c (s390_hard_regno_mode_ok): Make static.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/sh/sh.h (HARD_REGNO_MODE_OK): Delete.
        * config/sh/sh-protos.h (sh_hard_regno_mode_ok): Delete.
        * config/sh/sh.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (sh_hard_regno_mode_ok): Make static.
        * config/sparc/constraints.md: Refer to targetm.hard_regno_mode_ok
        instead of HARD_REGNO_MODE_OK.
        * config/sparc/sparc.h (hard_regno_mode_classes): Delete.
        (sparc_mode_class): Delete.
        (HARD_REGNO_MODE_OK): Delete.
        * config/sparc/sparc.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (hard_regno_mode_classes): Make static.
        (sparc_mode_class): Likewise.
        (sparc_hard_regno_mode_ok): New function.
        * config/spu/spu.h (HARD_REGNO_MODE_OK): Delete.
        * config/stormy16/stormy16.h (HARD_REGNO_MODE_OK): Delete.
        * config/stormy16/stormy16.c (xstormy16_hard_regno_mode_ok): New
        function.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/tilegx/tilegx.h (HARD_REGNO_MODE_OK): Delete.
        * config/tilepro/tilepro.h (HARD_REGNO_MODE_OK): Delete.
        * config/v850/v850.h (HARD_REGNO_MODE_OK): Delete.
        * config/v850/v850.c (v850_hard_regno_mode_ok): New function.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        * config/vax/vax.h (HARD_REGNO_MODE_OK): Delete.
        * config/visium/visium.h (HARD_REGNO_MODE_OK): Delete.
        * config/visium/visium.c (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (visium_hard_regno_mode_ok): New function.
        * config/visium/visium.md: Refer to targetm.hard_regno_mode_ok
        instead of HARD_REGNO_MODE_OK.
        * config/xtensa/xtensa.h (xtensa_hard_regno_mode_ok): Delete.
        (HARD_REGNO_MODE_OK): Delete.
        * config/xtensa/xtensa.c (xtensa_hard_regno_mode_ok): Rename to...
        (xtensa_hard_regno_mode_ok_p): ...this and make static.
        (xtensa_option_override): Update accordingly.
        (TARGET_HARD_REGNO_MODE_OK): Redefine.
        (xtensa_hard_regno_mode_ok): New function.
        * system.h (HARD_REGNO_MODE_OK): Poison.

2017-09-04  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (hard_regno_call_part_clobbered): New hook.
        * doc/tm.texi.in (HARD_REGNO_CALL_PART_CLOBBERED): Replace with...
        (TARGET_HARD_REGNO_CALL_PART_CLOBBERED): ...this hook.
        * doc/tm.texi: Regenerate.
        * hooks.h (hook_bool_uint_mode_false): Declare.
        * hooks.c (hook_bool_uint_mode_false): New function.
        * regs.h (HARD_REGNO_CALL_PART_CLOBBERED): Delete.
        * cselib.c (cselib_process_insn): Use
        targetm.hard_regno_call_part_clobbered instead of
        HARD_REGNO_CALL_PART_CLOBBERED.
        * ira-conflicts.c (ira_build_conflicts): Likewise.
        * ira-costs.c (ira_tune_allocno_costs): Likewise.
        * lra-constraints.c (need_for_call_save_p): Likewise.
        * lra-lives.c: Include target.h.
        (check_pseudos_live_through_calls): Use
        targetm.hard_regno_call_part_clobbered instead of
        HARD_REGNO_CALL_PART_CLOBBERED.
        * regcprop.c: Include target.h.
        (copyprop_hardreg_forward_1): Use
        targetm.hard_regno_call_part_clobbered instead of
        HARD_REGNO_CALL_PART_CLOBBERED.
        * reginfo.c (choose_hard_reg_mode): Likewise.
        * regrename.c (check_new_reg_p): Likewise.
        * reload.c (find_equiv_reg): Likewise.
        * reload1.c (emit_reload_insns): Likewise.
        * sched-deps.c (deps_analyze_insn): Likewise.
        * sel-sched.c (init_regs_for_mode): Likewise.
        (mark_unavailable_hard_regs): Likewise.
        * targhooks.c (default_dwarf_frame_reg_mode): Likewise.
        * config/aarch64/aarch64.h (HARD_REGNO_CALL_PART_CLOBBERED): Delete.
        * config/aarch64/aarch64.c (aarch64_hard_regno_call_part_clobbered):
        New function.
        (TARGET_HARD_REGNO_CALL_PART_CLOBBERED): Redefine.
        * config/avr/avr.h (HARD_REGNO_CALL_PART_CLOBBERED): Delete.
        * config/avr/avr-protos.h (avr_hard_regno_call_part_clobbered):
        Delete.
        * config/avr/avr.c (avr_hard_regno_call_part_clobbered): Make static
        and return a bool.
        (TARGET_HARD_REGNO_CALL_PART_CLOBBERED): Redefine.
        * config/i386/i386.h (HARD_REGNO_CALL_PART_CLOBBERED): Delete.
        * config/i386/i386.c (ix86_hard_regno_call_part_clobbered): New
        function.
        (TARGET_HARD_REGNO_CALL_PART_CLOBBERED): Redefine.
        * config/mips/mips.h (HARD_REGNO_CALL_PART_CLOBBERED): Delete.
        * config/mips/mips.c (mips_hard_regno_call_part_clobbered): New
        function.
        (TARGET_HARD_REGNO_CALL_PART_CLOBBERED): Redefine.
        * config/powerpcspe/powerpcspe.h (HARD_REGNO_CALL_PART_CLOBBERED):
        Delete.
        * config/powerpcspe/powerpcspe.c
        (rs6000_hard_regno_call_part_clobbered): New function.
        (TARGET_HARD_REGNO_CALL_PART_CLOBBERED): Redefine.
        * config/rs6000/rs6000.h (HARD_REGNO_CALL_PART_CLOBBERED): Delete.
        * config/rs6000/rs6000.c (rs6000_hard_regno_call_part_clobbered):
        New function.
        (TARGET_HARD_REGNO_CALL_PART_CLOBBERED): Redefine.
        * config/s390/s390.h (HARD_REGNO_CALL_PART_CLOBBERED): Delete.
        * config/s390/s390.c (s390_hard_regno_call_part_clobbered): New
        function.
        (TARGET_HARD_REGNO_CALL_PART_CLOBBERED): Redefine.
        * config/sh/sh.h (HARD_REGNO_CALL_PART_CLOBBERED): Delete.
        * system.h (HARD_REGNO_CALL_PART_CLOBBERED): Poison.

2017-09-04  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtl.h (subreg_memory_offset): Declare.
        * emit-rtl.c (subreg_memory_offset): New function.
        * expmed.c (store_bit_field_1): Use it.
        * expr.c (undefined_operand_subword_p): Likewise.
        * simplify-rtx.c (simplify_subreg): Likewise.

2017-09-04  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/57448
        PR target/67458
        PR target/81316
        * optabs.c (expand_atomic_load): Place compiler memory barriers if
        using atomic_load pattern.
        (expand_atomic_store): Likewise.

2017-09-04  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/81981
        * gimple-fold.c (gimple_fold_call): Optimize away useless UBSAN_PTR
        and UBSAN_BOUNDS internal calls.  Clean up IFN_UBSAN_OBJECT_SIZE
        handling.  Use replace_call_with_value with NULL instead of
        gsi_replace, unlink_stmt_vdef and release_defs.

        * gdbhooks.py (OptMachineModePrinter.to_string): Use 8 spaces
        instead of tab.

        * lra-remat.c (reg_overlap_for_remat_p): Fix a pasto.

2017-09-04  Richard Sandiford  <richard.sandiford@linaro.org>

        PR bootstrap/82045
        * rtl.h (emit_library_call_value_1): Declare.
        (emit_library_call): Replace declaration with a series of overloads.
        Remove the parameter count argument.
        (emit_library_call_value): Likewise.
        * calls.c (emit_library_call_value_1): Make global.  Replace varargs
        with an "rtx_mode_t *".
        (emit_library_call_value): Delete.
        (emit_library_call): Likewise.
        * asan.c (asan_emit_stack_protection): Update calls accordingly.
        (asan_emit_allocas_unpoison): Likewise.
        * builtins.c (expand_builtin_powi): Likewise.
        (expand_asan_emit_allocas_unpoison): Likewise.
        * cfgexpand.c (expand_main_function): Likewise.
        * config/aarch64/aarch64.c (aarch64_trampoline_init): Likewise.
        * config/aarch64/aarch64.h (PROFILE_HOOK): Likewise.
        * config/alpha/alpha.c (alpha_trampoline_init): Likewise.
        * config/arm/arm.c (arm_trampoline_init): Likewise.
        (arm_call_tls_get_addr): Likewise.
        (arm_expand_divmod_libfunc): Likewise.
        * config/bfin/bfin.md (umulsi3_highpart): Likewise.
        (smulsi3_highpart): Likewise.
        * config/c6x/c6x.c (c6x_initialize_trampoline): Likewise.
        (c6x_expand_compare): Likewise.
        (c6x_expand_movmem): Likewise.
        * config/frv/frv.c (frv_trampoline_init): Likewise.
        * config/i386/i386.c (ix86_trampoline_init): Likewise.
        (ix86_expand_divmod_libfunc): Likewise.
        * config/ia64/ia64.c (ia64_expand_tls_address): Likewise.
        (ia64_expand_compare): Likewise.
        (ia64_profile_hook): Likewise.
        * config/ia64/ia64.md (save_stack_nonlocal): Likewise.
        (nonlocal_goto): Likewise.
        (restore_stack_nonlocal): Likewise.
        * config/m32r/m32r.c (block_move_call): Likewise.
        (m32r_trampoline_init): Likewise.
        * config/m68k/linux.h (FINALIZE_TRAMPOLINE): Likewise.
        * config/m68k/m68k.c (m68k_call_tls_get_addr): Likewise.
        (m68k_call_m68k_read_tp): Likewise.
        * config/microblaze/microblaze.c (microblaze_call_tls_get_addr)
        (microblaze_expand_divide): Likewise.
        * config/mips/mips.h (mips_args): Likewise.
        * config/mips/sdemtk.h (mips_sync_icache): Likewise.
        (MIPS_ICACHE_SYNC): Likewise.
        * config/nios2/nios2.c (nios2_emit_expensive_div): Likewise.
        (nios2_trampoline_init): Likewise.
        * config/pa/pa.c (hppa_tls_call): Likewise.
        (pa_trampoline_init): Likewise.
        * config/pa/pa.md (canonicalize_funcptr_for_compare): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_legitimize_tls_address)
        (expand_strn_compare): Likewise.
        (rs6000_generate_compare): Likewise.
        (rs6000_expand_float128_convert): Likewise.
        (output_profile_hook): Likewise.
        (rs6000_trampoline_init): Likewise.
        * config/powerpcspe/powerpcspe.md (neg<mode>2): Likewise.
        * config/riscv/riscv.h (PROFILE_HOOK): Likewise.
        * config/rs6000/rs6000-string.c (expand_strn_compare): Likewise.
        * config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Likewise.
        (rs6000_generate_compare): Likewise.
        (rs6000_expand_float128_convert): Likewise.
        (output_profile_hook): Likewise.
        (rs6000_trampoline_init): Likewise.
        * config/rs6000/rs6000.md (neg<mode>2): Likewise.
        * config/sh/sh.c (sh_trampoline_init): Likewise.
        * config/sparc/sparc.c (emit_soft_tfmode_libcall): Likewise.
        (sparc_emit_float_lib_cmp): Likewise.
        (sparc32_initialize_trampoline): Likewise.
        (sparc64_initialize_trampoline): Likewise.
        (sparc_profile_hook): Likewise.
        * config/spu/spu.c (ea_load_store): Likewise.
        * config/spu/spu.md (floatunssidf2): Likewise.
        * config/tilegx/tilegx.c (tilegx_trampoline_init): Likewise.
        * config/tilepro/tilepro.c (tilepro_trampoline_init): Likewise.
        * config/visium/visium.c (expand_block_move_4): Likewise.
        (expand_block_move_2): Likewise.
        (expand_block_move_1): Likewise.
        (expand_block_set_4): Likewise.
        (expand_block_set_2): Likewise.
        (expand_block_set_1): Likewise.
        (visium_trampoline_init): Likewise.
        (visium_profile_hook): Likewise.
        * config/xtensa/xtensa.c (xtensa_expand_nonlocal_goto): Likewise.
        (xtensa_setup_frame_addresses): Likewise.
        (xtensa_trampoline_init): Likewise.
        * except.c (sjlj_emit_function_enter): Likewise.
        (sjlj_emit_function_exit): Likewise.
        * explow.c (allocate_dynamic_stack_space): Likewise.
        (probe_stack_range): Likewise.
        * expr.c (convert_mode_scalar): Likewise.
        * optabs.c (expand_binop): Likewise.
        (expand_twoval_binop_libfunc): Likewise.
        (expand_unop): Likewise.
        (prepare_cmp_insn): Likewise.
        (prepare_float_lib_cmp): Likewise.
        (expand_float): Likewise.
        (expand_fix): Likewise.
        (expand_fixed_convert): Likewise.
        (maybe_emit_sync_lock_test_and_set): Likewise.
        (expand_atomic_compare_and_swap): Likewise.
        (expand_mem_thread_fence): Likewise.
        (expand_atomic_fetch_op): Likewise.

2017-09-03  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/generic.texi (OpenACC): Adjust URL.
        * doc/invoke.texi (C Dialect Options): Ditto.

2017-09-03  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*bt<mode>): Use nonimmediate_operand
        predicate for operand 1.  Add (m,<S>) constraint.
        (*jcc_bt<mode>): Use nonimmediate_operand predicate for operand 1.
        Prevent memory operand 1 with register operand 2.

2017-09-01  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/82024
        * combine.c (try_combine): If the combination result is a PARALLEL,
        and we only need to retain the SET in there that would be placed
        at I2, check that we can place that at I3 instead, before doing so.

2017-09-01  Jakub Jelinek  <jakub@redhat.com>

        PR target/81766
        * config/i386/i386.c (ix86_init_large_pic_reg): Return label
        instead of void.
        (ix86_init_pic_reg): Remember label from ix86_init_large_pic_reg,
        if non-NULL and preceded by NOTE_INSN_BASIC_BLOCK, swap the note
        and label.

2017-09-01  Joerg Sonnenberger  <joerg@bec.de>
            Jeff Law  <law@redhat.com>

        * varasm.c (bss_initializer_p): Do not put constants into .bss
        (categorize_decl_for_section): Handle bss_initializer_p returning
        false when DECL_INITIAL is NULL.

2017-09-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/82012
        * config/s390/s390.c (s390_can_inline_p): New function.

2017-09-01  Jeff Law  <law@redhat.com>

        PR tree-optimization/82052
        * tree-ssa-scopedtables.c (avail_exprs_stack::lookup_avail_expr):
        Always initialize the returned slot after a hash table miss
        when INSERT is true.

2017-09-01  Alexander Monakov  <amonakov@ispras.ru>

        * config/s390/s390.md (mem_signal_fence): Remove.
        * doc/md.texi (mem_signal_fence): Remove.
        * optabs.c (expand_mem_signal_fence): Remove uses of mem_signal_fence.
        Update comments.
        * target-insns.def (mem_signal_fence): Remove.

2017-09-01  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/81902
        * doc/invoke.texi: Document -fsanitize=pointer-overflow.

        PR sanitizer/81923
        * asan.c (create_odr_indicator): Strip name encoding from assembler
        name before appending it after __odr_asan_.

2017-09-01  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/82059
        * gimple-ssa-isolate-paths.c (isolate_path): Add profile and
        frequency only when an edge is redirected.

2017-09-01  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-c.c (__ARC_LPC_WIDTH__): Add builtin define.
        * config/arc/arc.c (ARC_MAX_LOOP_LENGTH): Define.
        (arc_conditional_register_usage): Remove ARC600 lp_count
        exception.
        (arc_file_start): Emit Tag_ARC_CPU_variation.
        (arc_can_use_doloop_p): New conditions to use ZOLs.
        (hwloop_fail): New function.
        (hwloop_optimize): Likewise.
        (hwloop_pattern_reg): Likewise.
        (arc_doloop_hooks): New struct, to be used with reorg_loops.
        (arc_reorg_loops): New function, calls reorg_loops.
        (arc_reorg): Call arc_reorg_loops.  Remove old ZOL handling.
        (arc600_corereg_hazard): Remove ZOL checking, case handled by
        hwloop_optimize.
        (arc_loop_hazard): Remove function, functionality moved into
        hwloop_optimize.
        (arc_hazard): Remove arc_loop_hazard call.
        (arc_adjust_insn_length): Remove ZOL handling, functionality moved
        into hwloop_optimize.
        (arc_label_align): Remove ZOL handling.
        * config/arc/arc.h (LOOP_ALIGN): Changed to 0.
        * config/arc/arc.md (doloop_begin): Remove pattern.
        (doloop_begin_i): Likewise.
        (doloop_end_i): Likewise.
        (doloop_fallback): Likewise.
        (doloop_fallback_m): Likewise.
        (doloop_end): Reimplement expand.
        (arc_lp): New pattern for LP instruction.
        (loop_end): New pattern.
        (loop_fail): Likewise.
        (decrement_and_branch_until_zero): Likewise.
        * config/arc/arc.opt (mlpc-width): New option.
        * doc/invoke.texi (mlpc-width): Document option.

2017-09-01  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_ifcvt): Remove use of merge_blocks call.
        (arc_ccfsm_advance): Fix checking for delay slots.
        (arc_reorg): Add rtl dump after each call to arc_ifcvt.

2017-09-01  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (movqi_insn): Add stores to save constant long
        immediates.
        (movhi_insn): Update store instruction constraint which are saving
        6-bit short immediates.
        (movsi_insn): Consider also short scaled load operations.
        (zero_extendhisi2_i): Use Usd constraint instead of T.
        (extendhisi2_i): Add q constraint.
        (arc_clzsi2): Add type and length attributes.
        (arc_ctzsi2): Likewise.
        * config/arc/constraints.md (Usc): Update constraint, the
        assembler can parse two relocations for a single instruction.

2017-09-01  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_use_anchors_for_symbol_p): New function.
        (TARGET_USE_ANCHORS_FOR_SYMBOL_P): Define.

2017-08-31  Olivier Hainque  <hainque@adacore.com>

        * config.gcc (powerpc-wrs-vxworks|vxworksae|vxworksmils): Now
        match as powerpc-wrs-vxworks*.

2017-08-31  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64-simd.md (aarch64_mla_elt_merge<mode>): Fix
        register constraint for by-element operand.
        (aarch64_mls_elt_merge<mode>): Likewise.

2017-08-31  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_can_follow_jump): Check for short
        branches.

2017-08-31  Claudiu Zissulescu  <claziss@synopsys.com>

        * config.gcc: Use g.opt for arc.
        * config/arc/arc.c (LEGITIMATE_SCALED_ADDRESS_P): Deleted,
        functionality moved to ...
        (legitimate_scaled_address_p): New function, ...here.
        (LEGITIMATE_SMALL_DATA_OFFSET_P): New define.
        (LEGITIMATE_SMALL_DATA_ADDRESS_P): Use the above define.
        (legitimate_offset_address_p): Delete TARGET_NO_SDATA_SET
        condition.
        (arc_override_options): Handle G option.
        (arc_output_pic_addr_const): Correct function definition.
        (arc_legitimate_address_p): Use legitimate_scaled_address_p.
        (arc_decl_anon_ns_mem_p): Delete.
        (arc_in_small_data_p): Overhaul this function to take into
        consideration the value given via G option.
        (arc_rewrite_small_data_1): Renamed and corrected old
        arc_rewrite_small_data function.
        (arc_rewrite_small_data): New function.
        (small_data_pattern): Don't use pic_offset_table_rtx.
        * config/arc/arc.h (CC1_SPEC): Recognize G option.
        * config/arc/simdext.md (movmisalignv2hi): Use
        prepare_move_operands function.
        (mov*): Likewise.
        (movmisalign*): Likewise.
        * doc/invoke.texi (ARC options): Document -G option.

2017-08-31  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-protos.h (compact_sda_memory_operand): Update
        prototype.
        * config/arc/arc.c (arc_print_operand): Output scalled address for
        sdata whenever is possible.
        (arc_in_small_data_p): Allow sdata for 64bit datum when double
        load/stores are available.
        (compact_sda_memory_operand): Check for the alignment required by
        code density instructions.
        * config/arc/arc.md (movsi_insn): Use newly introduced Us0
        constraint.
        * config/arc/constraints.md (Usd): Update constraint.
        (Us0): New constraint.
        (Usc): Update constraint.

2017-08-31  Richard Biener  <rguenther@suse.de>

        PR middle-end/82054
        * dwarf2out.c (dwarf2out_early_global_decl): Process each
        function only once.

2017-08-31  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-builtins.c (aarch64_init_simd_builtins):
        Resize type_signature.

2017-08-31  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64.c (aarch64_base_register_rtx_p): Only allow
        subregs whose inner modes can be stored in GPRs.
        (aarch64_classify_index): Likewise.

2017-08-31  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/iterators.md (V_cmp_result): Rename to...
        (V_INT_EQUIV): ...this.
        (v_cmp_result): Rename to...
        (v_int_equiv): ...this.
        * config/aarch64/aarch64.md (xorsign<mode>3): Update accordingly.
        * config/aarch64/aarch64-simd.md (xorsign<mode>3): Likewise.
        (copysign<mode>3): Likewise.
        (aarch64_simd_bsl<mode>_internal): Likewise.
        (aarch64_simd_bsl<mode>): Likewise.
        (vec_cmp<mode><mode>): Likewise.
        (vcond<mode><mode>): Likewise.
        (vcond<v_cmp_mixed><mode>): Likewise.
        (vcondu<mode><v_cmp_mixed>): Likewise.
        (aarch64_cm<optab><mode>): Likewise.
        (aarch64_cmtst<mode>): Likewise.
        (aarch64_fac<optab><mode>): Likewise.
        (vec_perm_const<mode>): Likewise.
        (vcond_mask_<mode><v_cmp_result>): Rename to...
        (vcond_mask_<mode><v_int_equiv>): ...this.
        (vec_cmp<mode><v_cmp_result>): Rename to...
        (vec_cmp<mode><v_int_equiv>): ...this.

2017-08-31  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64-modes.def: Remove 32-, 48- and 64-byte
        vector modes.
        * config/aarch64/iterators.md (VRL2, VRL3, VRL4): Delete.
        * config/aarch64/aarch64.md (UNSPEC_LD2_DREG, UNSPEC_LD3_DREG)
        (UNSPEC_LD4_DREG): New unspecs.
        * config/aarch64/aarch64-simd.md (aarch64_ld2<mode>_dreg_le)
        (aarch64_ld2<mode>_dreg_be): Replace with...
        (aarch64_ld2<mode>_dreg): ...this pattern and use the new DREG
        unspec.
        (aarch64_ld3<mode>_dreg_le)
        (aarch64_ld3<mode>_dreg_be): Replace with...
        (aarch64_ld3<mode>_dreg): ...this pattern and use the new DREG
        unspec.
        (aarch64_ld4<mode>_dreg_le)
        (aarch64_ld4<mode>_dreg_be): Replace with...
        (aarch64_ld4<mode>_dreg): ...this pattern and use the new DREG
        unspec.

2017-08-30  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/81987
        * gimple-ssa-strength-reduction.c (insert_initializers): Don't
        insert an initializer in a location not dominated by the stride
        definition.

2017-08-30  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-eh.c (lower_try_finally_switch): Set the location of the finally
        on the entire header of the finally block in the fallthru case.

2017-08-30  Eric Botcazou  <ebotcazou@adacore.com>

        * varasm.c (decode_addr_const): Deal with INDIRECT_REF <INTEGER_CST>.

2017-08-30  Pat Haugen  <pthaugen@us.ibm.com>

        * config/rs6000/rs6000.c (rs6000_emit_prologue_move_from_cr): Rename from
        rs6000_emit_move_from_cr and call renamed function.
        (rs6000_emit_prologue): Call renamed functions.
        * config/rs6000/rs6000.md (prologue_movesi_from_cr): Rename from
        movesi_from_cr, remove volatile CRs.

2017-08-30  Jon Beniston  <jon@beniston.com>
            Richard Biener  <rguenther@suse.de>

        * tree-vect-patterns.c (vect_pattern_recog_1): Use VECTOR_TYPE_P instead
        of VECTOR_MODE_P check.
        * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Allow single
        element vector types.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>

        * df.h (df_read_modify_subreg_p): Remove in favor of...
        * rtl.h (read_modify_subreg_p): ...this new function.  Take a
        const_rtx instead of an rtx.
        * cprop.c (local_cprop_find_used_regs): Update accordingly.
        * df-problems.c (df_word_lr_mark_ref): Likewise.
        * ira-lives.c (mark_pseudo_reg_live): Likewise.
        (mark_pseudo_reg_dead): Likewise.
        (mark_ref_dead): Likewise.
        * reginfo.c (init_subregs_of_mode): Likewise.
        * sched-deps.c (sched_analyze_1): Likewise.
        * df-scan.c (df_def_record_1): Likewise.
        (df_uses_record): Likewise.
        (df_read_modify_subreg_p): Remove in favor of...
        * rtlanal.c (read_modify_subreg_p): ...this new function.  Take a
        const_rtx instead of an rtx.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtl.h (partial_subreg_p): New function.
        * caller-save.c (save_call_clobbered_regs): Use it.
        * calls.c (expand_call): Likewise.
        * combine.c (combinable_i3pat): Likewise.
        (simplify_set): Likewise.
        (make_extraction): Likewise.
        (make_compound_operation_int): Likewise.
        (gen_lowpart_or_truncate): Likewise.
        (force_to_mode): Likewise.
        (make_field_assignment): Likewise.
        (reg_truncated_to_mode): Likewise.
        (record_truncated_value): Likewise.
        (move_deaths): Likewise.
        * cse.c (record_jump_cond): Likewise.
        (cse_insn): Likewise.
        * cselib.c (cselib_lookup_1): Likewise.
        * expmed.c (extract_bit_field_using_extv): Likewise.
        * function.c (assign_parm_setup_reg): Likewise.
        * ifcvt.c (noce_convert_multiple_sets): Likewise.
        * ira-build.c (create_insn_allocnos): Likewise.
        * lra-coalesce.c (merge_pseudos): Likewise.
        * lra-constraints.c (match_reload): Likewise.
        (simplify_operand_subreg): Likewise.
        (curr_insn_transform): Likewise.
        * lra-lives.c (process_bb_lives): Likewise.
        * lra.c (new_insn_reg): Likewise.
        (lra_substitute_pseudo): Likewise.
        * regcprop.c (mode_change_ok): Likewise.
        (maybe_mode_change): Likewise.
        (copyprop_hardreg_forward_1): Likewise.
        * reload.c (push_reload): Likewise.
        (find_reloads): Likewise.
        (find_reloads_subreg_address): Likewise.
        * reload1.c (alter_reg): Likewise.
        (eliminate_regs_1): Likewise.
        * simplify-rtx.c (simplify_unary_operation_1): Likewise.

2017-08-30  David Edelsohn  <dje.gcc@gmail.com>

        * config/rs6000/rs6000.c (rs6000_expand_binop_builtin): Revert
        back to if statements, including unpack.

2017-08-30  Martin Liska  <mliska@suse.cz>

        PR inline-asm/82001
        * ipa-icf-gimple.c (func_checker::compare_tree_list_operand):
        Rename to ...
        (func_checker::compare_asm_inputs_outputs): ... this function.
        (func_checker::compare_gimple_asm): Use the function to compare
        also ASM constrains.
        * ipa-icf-gimple.h: Rename the function.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * coretypes.h (complex_mode): New type.
        * gdbhooks.py (build_pretty_printer): Handle it.
        * machmode.h (complex_mode): New class.
        (complex_mode::includes_p): New function.
        (is_complex_int_mode): Likewise.
        (is_complex_float_mode): Likewise.
        * genmodes.c (get_mode_class): Handle complex mode classes.
        * function.c (expand_function_end): Use is_complex_int_mode.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * coretypes.h (scalar_mode_pod): New typedef.
        * gdbhooks.py (build_pretty_printer): Handle it.
        * machmode.h (gt_ggc_mx, gt_pch_nx): New functions.
        * fixed-value.h (fixed_value::mode): Change type to scalar_mode_pod.
        * fold-const.c (fold_convert_const_int_from_fixed): Use scalar_mode.
        * tree-streamer-in.c (unpack_ts_fixed_cst_value_fields): Use
        as_a <scalar_mode>.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * machmode.h (mode_for_vector): Take a scalar_mode instead
        of a machine_mode.
        * stor-layout.c (mode_for_vector): Likewise.
        * explow.c (promote_mode): Use as_a <scalar_mode>.
        * sdbout.c (sdbout_parms): Use is_a <scalar_mode>.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (preferred_simd_mode): Take a scalar_mode
        instead of a machine_mode.
        * targhooks.h (default_preferred_simd_mode): Likewise.
        * targhooks.c (default_preferred_simd_mode): Likewise.
        * config/arc/arc.c (arc_preferred_simd_mode): Likewise.
        * config/arm/arm.c (arm_preferred_simd_mode): Likewise.
        * config/c6x/c6x.c (c6x_preferred_simd_mode): Likewise.
        * config/epiphany/epiphany.c (epiphany_preferred_simd_mode): Likewise.
        * config/i386/i386.c (ix86_preferred_simd_mode): Likewise.
        * config/mips/mips.c (mips_preferred_simd_mode): Likewise.
        * config/nvptx/nvptx.c (nvptx_preferred_simd_mode): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_preferred_simd_mode):
        Likewise.
        * config/rs6000/rs6000.c (rs6000_preferred_simd_mode): Likewise.
        * config/s390/s390.c (s390_preferred_simd_mode): Likewise.
        * config/sparc/sparc.c (sparc_preferred_simd_mode): Likewise.
        * config/aarch64/aarch64.c (aarch64_preferred_simd_mode): Likewise.
        (aarch64_simd_scalar_immediate_valid_for_move): Update accordingly.
        * doc/tm.texi: Regenerate.
        * optabs-query.c (can_vec_mask_load_store_p): Return false for
        non-scalar modes.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (scalar_mode_supported_p): Take a scalar_mode
        instead of a machine_mode.
        * targhooks.h (default_scalar_mode_supported_p): Likewise.
        * targhooks.c (default_scalar_mode_supported_p): Likewise.
        * config/aarch64/aarch64.c (aarch64_scalar_mode_supported_p): Likewise.
        * config/alpha/alpha.c (alpha_scalar_mode_supported_p): Likewise.
        * config/arm/arm.c (arm_scalar_mode_supported_p): Likewise.
        * config/avr/avr.c (avr_scalar_mode_supported_p): Likewise.
        * config/c6x/c6x.c (c6x_scalar_mode_supported_p): Likewise.
        * config/i386/i386.c (ix86_scalar_mode_supported_p): Likewise.
        * config/ia64/ia64.c (ia64_scalar_mode_supported_p): Likewise.
        * config/mips/mips.c (mips_scalar_mode_supported_p): Likewise.
        * config/msp430/msp430.c (msp430_scalar_mode_supported_p): Likewise.
        * config/pa/pa.c (pa_scalar_mode_supported_p): Likewise.
        * config/pdp11/pdp11.c (pdp11_scalar_mode_supported_p): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_scalar_mode_supported_p):
        Likewise.
        * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): Likewise.
        * config/s390/s390.c (s390_scalar_mode_supported_p): Likewise.
        * config/spu/spu.c (spu_scalar_mode_supported_p): Likewise.
        * config/tilegx/tilegx.c (tilegx_scalar_mode_supported_p): Likewise.
        * config/tilepro/tilepro.c (tilepro_scalar_mode_supported_p):
        Likewise.
        * doc/tm.texi: Regenerate.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * coretypes.h (opt_scalar_mode): New typedef.
        * gdbhooks.py (build_pretty_printers): Handle it.
        * machmode.h (mode_iterator::get_2xwider): Add overload for
        opt_mode<T>.
        * emit-rtl.c (init_emit_once): Use opt_scalar_mode when iterating
        over scalar modes.
        * expr.c (convert_mode_scalar): Likewise.
        * omp-low.c (omp_clause_aligned_alignment): Likewise.
        * optabs.c (expand_float): Likewise.
        (expand_fix): Likewise.
        * tree-vect-stmts.c (vectorizable_conversion): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * optabs.c (expand_float): Explicitly check for scalars before
        using a branching expansion.
        (expand_fix): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expr.c (convert_mode): Split scalar handling out into...
        (convert_mode_scalar): ...this new function.  Treat the modes
        as scalar_modes.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * omp-expand.c (expand_omp_atomic): Use is_int_mode, is_float_mode
        and scalar_mode.
        * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * fixed-value.h (fixed_from_double_int): Take a scalar_mode
        rather than a machine_mode.
        (fixed_from_string): Likewise.
        (fixed_convert): Likewise.
        (fixed_convert_from_int): Likewise.
        (fixed_convert_from_real): Likewise.
        (real_convert_from_fixed): Likewise.
        * fixed-value.c (fixed_from_double_int): Likewise.
        (fixed_from_string): Likewise.
        (fixed_convert): Likewise.
        (fixed_convert_from_int): Likewise.
        (fixed_convert_from_real): Likewise.
        (real_convert_from_fixed): Likewise.
        * config/avr/avr.c (avr_out_round): Use as_a <scalar_mode>.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * emit-rtl.c (immed_double_const): Use is_a <scalar_mode> instead
        of separate mode class checks.  Do not allow vector modes here.
        (immed_wide_int_const): Use as_a <scalar_mode>.
        * explow.c (trunc_int_for_mode): Likewise.
        * rtl.h (wi::int_traits<rtx_mode_t>::get_precision): Likewise.
        (wi::shwi): Likewise.
        (wi::min_value): Likewise.
        (wi::max_value): Likewise.
        * dwarf2out.c (loc_descriptor): Likewise.
        * simplify-rtx.c (simplify_immed_subreg): Fix rtx_mode_t argument
        for CONST_WIDE_INT.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree.h (SCALAR_TYPE_MODE): New macro.
        * expr.c (expand_expr_addr_expr_1): Use it.
        (expand_expr_real_2): Likewise.
        * fold-const.c (fold_convert_const_fixed_from_fixed): Likeise.
        (fold_convert_const_fixed_from_int): Likewise.
        (fold_convert_const_fixed_from_real): Likewise.
        (native_encode_fixed): Likewise
        (native_encode_complex): Likewise
        (native_encode_vector): Likewise.
        (native_interpret_fixed): Likewise.
        (native_interpret_real): Likewise.
        (native_interpret_complex): Likewise.
        (native_interpret_vector): Likewise.
        * omp-simd-clone.c (simd_clone_adjust_return_type): Likewise.
        (simd_clone_adjust_argument_types): Likewise.
        (simd_clone_init_simd_arrays): Likewise.
        (simd_clone_adjust): Likewise.
        * stor-layout.c (layout_type): Likewise.
        * tree.c (build_minus_one_cst): Likewise.
        * tree-cfg.c (verify_gimple_assign_ternary): Likewise.
        * tree-inline.c (estimate_move_cost): Likewise.
        * tree-ssa-math-opts.c (convert_plusminus_to_widen): Likewise.
        * tree-vect-loop.c (vect_create_epilog_for_reduction): Likewise.
        (vectorizable_reduction): Likewise.
        * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Likewise.
        (vect_recog_mixed_size_cond_pattern): Likewise.
        (check_bool_pattern): Likewise.
        (adjust_bool_pattern): Likewise.
        (search_type_for_mask_1): Likewise.
        * tree-vect-slp.c (vect_schedule_slp_instance): Likewise.
        * tree-vect-stmts.c (vectorizable_conversion): Likewise.
        (vectorizable_load): Likewise.
        (vectorizable_store): Likewise.
        * ubsan.c (ubsan_encode_value): Likewise.
        * varasm.c (output_constant): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * coretypes.h (scalar_mode): New class.
        * machmode.h (scalar_mode): Likewise.
        (scalar_mode::includes_p): New function.
        (mode_to_inner): Return a scalar_mode rather than a machine_mode.
        * gdbhooks.py (build_pretty_printers): Handle scalar_mode.
        * genmodes.c (get_mode_class): Handle remaining scalar modes.
        * cfgexpand.c (expand_debug_expr): Use scalar_mode.
        * expmed.c (store_bit_field_1): Likewise.
        (extract_bit_field_1): Likewise.
        * expr.c (write_complex_part): Likewise.
        (read_complex_part): Likewise.
        (emit_move_complex_push): Likewise.
        (expand_expr_real_2): Likewise.
        * function.c (assign_parm_setup_reg): Likewise.
        (assign_parms_unsplit_complex): Likewise.
        * optabs.c (expand_binop): Likewise.
        * rtlanal.c (subreg_get_info): Likewise.
        * simplify-rtx.c (simplify_immed_subreg): Likewise.
        * varasm.c (output_constant_pool_2): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expmed.c (extract_high_half): Use scalar_int_mode and remove
        assertion.
        (expmed_mult_highpart_optab): Likewise.
        (expmed_mult_highpart): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * builtins.h (builtin_strncpy_read_str): Take a scalar_int_mode
        instead of a machine_mode.
        (builtin_memset_read_str): Likewise.
        * builtins.c (c_readstr): Likewise.
        (builtin_memcpy_read_str): Likewise.
        (builtin_strncpy_read_str): Likewise.
        (builtin_memset_read_str): Likewise.
        (builtin_memset_gen_str): Likewise.
        (expand_builtin_signbit): Use scalar_int_mode for local variables.
        * cfgexpand.c (convert_debug_memory_address): Take a scalar_int_mode
        instead of a machine_mode.
        * combine.c (simplify_if_then_else): Use scalar_int_mode for local
        variables.
        (make_extraction): Likewise.
        (try_widen_shift_mode): Take and return scalar_int_modes instead
        of machine_modes.
        * config/aarch64/aarch64.c (aarch64_libgcc_cmp_return_mode): Return
        a scalar_int_mode instead of a machine_mode.
        * config/avr/avr.c (avr_addr_space_address_mode): Likewise.
        (avr_addr_space_pointer_mode): Likewise.
        * config/cr16/cr16.c (cr16_unwind_word_mode): Likewise.
        * config/msp430/msp430.c (msp430_addr_space_pointer_mode): Likewise.
        (msp430_unwind_word_mode): Likewise.
        * config/spu/spu.c (spu_unwind_word_mode): Likewise.
        (spu_addr_space_pointer_mode): Likewise.
        (spu_addr_space_address_mode): Likewise.
        (spu_libgcc_cmp_return_mode): Likewise.
        (spu_libgcc_shift_count_mode): Likewise.
        * config/rl78/rl78.c (rl78_addr_space_address_mode): Likewise.
        (rl78_addr_space_pointer_mode): Likewise.
        (fl78_unwind_word_mode): Likewise.
        (rl78_valid_pointer_mode): Take a scalar_int_mode instead of a
        machine_mode.
        * config/alpha/alpha.c (vms_valid_pointer_mode): Likewise.
        * config/ia64/ia64.c (ia64_vms_valid_pointer_mode): Likewise.
        * config/mips/mips.c (mips_mode_rep_extended): Likewise.
        (mips_valid_pointer_mode): Likewise.
        * config/tilegx/tilegx.c (tilegx_mode_rep_extended): Likewise.
        * config/ft32/ft32.c (ft32_valid_pointer_mode): Likewise.
        (ft32_addr_space_pointer_mode): Return a scalar_int_mode instead
        of a machine_mode.
        (ft32_addr_space_address_mode): Likewise.
        * config/m32c/m32c.c (m32c_valid_pointer_mode): Take a
        scalar_int_mode instead of a machine_mode.
        (m32c_addr_space_pointer_mode): Return a scalar_int_mode instead
        of a machine_mode.
        (m32c_addr_space_address_mode): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_abi_word_mode): Likewise.
        (rs6000_eh_return_filter_mode): Likewise.
        * config/rs6000/rs6000.c (rs6000_abi_word_mode): Likewise.
        (rs6000_eh_return_filter_mode): Likewise.
        * config/s390/s390.c (s390_libgcc_cmp_return_mode): Likewise.
        (s390_libgcc_shift_count_mode): Likewise.
        (s390_unwind_word_mode): Likewise.
        (s390_valid_pointer_mode): Take a scalar_int_mode rather than a
        machine_mode.
        * target.def (mode_rep_extended): Likewise.
        (valid_pointer_mode): Likewise.
        (addr_space.valid_pointer_mode): Likewise.
        (eh_return_filter_mode): Return a scalar_int_mode rather than
        a machine_mode.
        (libgcc_cmp_return_mode): Likewise.
        (libgcc_shift_count_mode): Likewise.
        (unwind_word_mode): Likewise.
        (addr_space.pointer_mode): Likewise.
        (addr_space.address_mode): Likewise.
        * doc/tm.texi: Regenerate.
        * dojump.c (prefer_and_bit_test): Take a scalar_int_mode rather than
        a machine_mode.
        (do_jump): Use scalar_int_mode for local variables.
        * dwarf2cfi.c (init_return_column_size): Take a scalar_int_mode
        rather than a machine_mode.
        * dwarf2out.c (convert_descriptor_to_mode): Likewise.
        (scompare_loc_descriptor_wide): Likewise.
        (scompare_loc_descriptor_narrow): Likewise.
        * emit-rtl.c (adjust_address_1): Use scalar_int_mode for local
        variables.
        * except.c (sjlj_emit_dispatch_table): Likewise.
        (expand_builtin_eh_copy_values): Likewise.
        * explow.c (convert_memory_address_addr_space_1): Likewise.
        Take a scalar_int_mode rather than a machine_mode.
        (convert_memory_address_addr_space): Take a scalar_int_mode rather
        than a machine_mode.
        (memory_address_addr_space): Use scalar_int_mode for local variables.
        * expmed.h (expand_mult_highpart_adjust): Take a scalar_int_mode
        rather than a machine_mode.
        * expmed.c (mask_rtx): Likewise.
        (init_expmed_one_conv): Likewise.
        (expand_mult_highpart_adjust): Likewise.
        (extract_high_half): Likewise.
        (expmed_mult_highpart_optab): Likewise.
        (expmed_mult_highpart): Likewise.
        (expand_smod_pow2): Likewise.
        (expand_sdiv_pow2): Likewise.
        (emit_store_flag_int): Likewise.
        (adjust_bit_field_mem_for_reg): Use scalar_int_mode for local
        variables.
        (extract_low_bits): Likewise.
        * expr.h (by_pieces_constfn): Take a scalar_int_mode rather than
        a machine_mode.
        * expr.c (pieces_addr::adjust):  Likewise.
        (can_store_by_pieces): Likewise.
        (store_by_pieces): Likewise.
        (clear_by_pieces_1): Likewise.
        (expand_expr_addr_expr_1): Likewise.
        (expand_expr_addr_expr): Use scalar_int_mode for local variables.
        (expand_expr_real_1): Likewise.
        (try_casesi): Likewise.
        * final.c (shorten_branches): Likewise.
        * fold-const.c (fold_convert_const_int_from_fixed): Change the
        type of "mode" to machine_mode.
        * internal-fn.c (expand_arith_overflow_result_store): Take a
        scalar_int_mode rather than a machine_mode.
        (expand_mul_overflow): Use scalar_int_mode for local variables.
        * loop-doloop.c (doloop_modify): Likewise.
        (doloop_optimize): Likewise.
        * optabs.c (expand_subword_shift): Take a scalar_int_mode rather
        than a machine_mode.
        (expand_doubleword_shift_condmove): Likewise.
        (expand_doubleword_shift): Likewise.
        (expand_doubleword_clz): Likewise.
        (expand_doubleword_popcount): Likewise.
        (expand_doubleword_parity): Likewise.
        (expand_absneg_bit): Use scalar_int_mode for local variables.
        (prepare_float_lib_cmp): Likewise.
        * rtl.h (convert_memory_address_addr_space_1): Take a scalar_int_mode
        rather than a machine_mode.
        (convert_memory_address_addr_space): Likewise.
        (get_mode_bounds): Likewise.
        (get_address_mode): Return a scalar_int_mode rather than a
        machine_mode.
        * rtlanal.c (get_address_mode): Likewise.
        * stor-layout.c (get_mode_bounds): Take a scalar_int_mode rather
        than a machine_mode.
        * targhooks.c (default_mode_rep_extended): Likewise.
        (default_valid_pointer_mode): Likewise.
        (default_addr_space_valid_pointer_mode): Likewise.
        (default_eh_return_filter_mode): Return a scalar_int_mode rather
        than a machine_mode.
        (default_libgcc_cmp_return_mode): Likewise.
        (default_libgcc_shift_count_mode): Likewise.
        (default_unwind_word_mode): Likewise.
        (default_addr_space_pointer_mode): Likewise.
        (default_addr_space_address_mode): Likewise.
        * targhooks.h (default_eh_return_filter_mode): Likewise.
        (default_libgcc_cmp_return_mode): Likewise.
        (default_libgcc_shift_count_mode): Likewise.
        (default_unwind_word_mode): Likewise.
        (default_addr_space_pointer_mode): Likewise.
        (default_addr_space_address_mode): Likewise.
        (default_mode_rep_extended): Take a scalar_int_mode rather than
        a machine_mode.
        (default_valid_pointer_mode): Likewise.
        (default_addr_space_valid_pointer_mode): Likewise.
        * tree-ssa-address.c (addr_for_mem_ref): Use scalar_int_mode for
        local variables.
        * tree-ssa-loop-ivopts.c (get_shiftadd_cost): Take a scalar_int_mode
        rather than a machine_mode.
        * tree-switch-conversion.c (array_value_type): Use scalar_int_mode
        for local variables.
        * tree-vrp.c (simplify_float_conversion_using_ranges): Likewise.
        * var-tracking.c (use_narrower_mode): Take a scalar_int_mode rather
        than a machine_mode.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * dojump.c (do_jump_by_parts_greater_rtx): Change the type of
        the mode argument to scalar_int_mode.
        (do_jump_by_parts_zero_rtx): Likewise.
        (do_jump_by_parts_equality_rtx): Likewise.
        (do_jump_by_parts_greater): Take a mode argument.
        (do_jump_by_parts_equality): Likewise.
        (do_jump_1): Update calls accordingly.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * is-a.h (safe_dyn_cast): New function.
        * rtl.h (rtx_jump_table_data::get_data_mode): New function.
        (jump_table_for_label): Likewise.
        * final.c (final_addr_vec_align): Take an rtx_jump_table_data *
        instead of an rtx_insn *.
        (shorten_branches): Use dyn_cast instead of LABEL_P and
        JUMP_TABLE_DATA_P.  Use jump_table_for_label and
        rtx_jump_table_data::get_data_mode.
        (final_scan_insn): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (try_combine): Use is_a <scalar_int_mode> when
        trying to combine a full-register integer set with a subreg
        integer set.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expr.c (expand_expr_addr_expr): Add a new_tmode local variable
        that is always either address_mode or pointer_mode.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expr.c (expand_expr_real_2): Use word_mode instead of innermode
        when the two are known to be equal.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * simplify-rtx.c (simplify_const_unary_operation): Use
        is_a <scalar_int_mode> instead of checking for a nonzero
        precision.  Forcibly convert op_mode to a scalar_int_mode
        in that case.  More clearly differentiate the operand and
        result modes and use the former when deciding what the value
        of a count-bits operation should be.  Use is_int_mode instead
        of checking for a MODE_INT.  Remove redundant check for whether
        this mode has a zero precision.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * optabs.c (widen_leading): Change the type of the mode argument
        to scalar_int_mode.  Use opt_scalar_int_mode for the mode iterator.
        (widen_bswap): Likewise.
        (expand_parity): Likewise.
        (expand_ctz): Change the type of the mode argument to scalar_int_mode.
        (expand_ffs): Likewise.
        (epand_unop): Check for scalar integer modes before calling the
        above routines.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expr.c (const_scalar_mask_from_tree): Add a mode argument.
        Expand commentary.
        (expand_expr_real_1): Update call accordingly.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expmed.c (store_bit_field_using_insv): Add op0_mode and
        value_mode arguments.  Use scalar_int_mode internally.
        (store_bit_field_1): Rename the new integer mode from imode
        to op0_mode and use it instead of GET_MODE (op0).  Update calls
        to store_split_bit_field, store_bit_field_using_insv and
        store_fixed_bit_field.
        (store_fixed_bit_field): Add op0_mode and value_mode arguments.
        Use scalar_int_mode internally.  Use a bit count rather than a mode
        when calculating the largest bit size for get_best_mode.
        Update calls to store_split_bit_field and store_fixed_bit_field_1.
        (store_fixed_bit_field_1): Add mode and value_mode arguments.
        Remove assertion that OP0 has a scalar integer mode.
        (store_split_bit_field): Add op0_mode and value_mode arguments.
        Update calls to extract_fixed_bit_field.
        (extract_bit_field_using_extv): Add an op0_mode argument.
        Use scalar_int_mode internally.
        (extract_bit_field_1): Rename the new integer mode from imode to
        op0_mode and use it instead of GET_MODE (op0).  Update calls to
        extract_split_bit_field, extract_bit_field_using_extv and
        extract_fixed_bit_field.
        (extract_fixed_bit_field): Add an op0_mode argument.  Update calls
        to extract_split_bit_field and extract_fixed_bit_field_1.
        (extract_fixed_bit_field_1): Add a mode argument.  Remove assertion
        that OP0 has a scalar integer mode.  Use as_a <scalar_int_mode>
        on the target mode.
        (extract_split_bit_field): Add an op0_mode argument.  Update call
        to extract_fixed_bit_field.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * cse.c (cse_insn): Use opt_scalar_int_mode for the mode iterator.
        * explow.c (hard_function_value): Likewise.
        * expmed.c (extract_fixed_bit_field_1): Likewise.  Move the
        convert_to_mode call outside the loop.
        * expr.c (alignment_for_piecewise_move): Use opt_scalar_int_mode
        for the mode iterator.  Require the mode specified by max_pieces
        to exist.
        (emit_block_move_via_movmem): Use opt_scalar_int_mode for the
        mode iterator.
        (copy_blkmode_to_reg): Likewise.
        (set_storage_via_setmem): Likewise.
        * optabs.c (prepare_cmp_insn): Likewise.
        * rtlanal.c (init_num_sign_bit_copies_in_rep): Likewise.
        * stor-layout.c (finish_bitfield_representative): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtl.h (subreg_unpromoted_mode, subreg_promoted_mode): New functions.
        * expr.c (convert_move): Use them.
        (convert_modes): Likewise.
        (store_expr_with_bounds): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtl.h (rtl_hooks::reg_nonzero_bits): Add a scalar_int_mode
        parameter for the mode of "x".  Remove the "known_x", "known_mode"
        and "known_ret" arguments.  Change the type of the mode argument
        to scalar_int_mode.
        (rtl_hooks:reg_num_sign_bit_copies): Likewise.
        * combine.c (reg_nonzero_bits_for_combine): Update accordingly.
        (reg_num_sign_bit_copies_for_combine): Likewise.
        * rtlanal.c (nonzero_bits1): Likewise.
        (num_sign_bit_copies1): Likewise.
        * rtlhooks-def.h (reg_nonzero_bits_general): Likewise.
        (reg_num_sign_bit_copies_general): Likewise.
        * rtlhooks.c (reg_num_sign_bit_copies_general): Likewise.
        (reg_nonzero_bits_general): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtlanal.c (num_sign_bit_copies): Handle VOIDmode here rather
        than in subroutines.  Return 1 for non-integer modes.
        (cached_num_sign_bit_copies): Change the type of the mode parameter
        to scalar_int_mode.
        (num_sign_bit_copies1): Likewise.  Remove early exit for other mode
        classes.  Handle CONST_INT_P first and then check whether X also
        has a scalar integer mode.  Check the same thing for inner registers
        of a SUBREG and for values that are being extended or truncated.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtlanal.c (nonzero_bits): Handle VOIDmode here rather than
        in subroutines.  Return the mode mask for non-integer modes.
        (cached_nonzero_bits): Change the type of the mode parameter
        to scalar_int_mode.
        (nonzero_bits1): Likewise.  Remove early exit for other mode
        classes.  Handle CONST_INT_P first and then check whether X
        also has a scalar integer mode.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expr.c (widest_int_mode_for_size): Make the comment match the code.
        Return a scalar_int_mode and assert that the size is greater than
        one byte.
        (by_pieces_ninsns): Update accordingly and remove VOIDmode handling.
        (op_by_pieces_d::op_by_pieces_d): Likewise.
        (op_by_pieces_d::run): Likewise.
        (can_store_by_pieces): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (extract_left_shift): Add a mode argument and update
        recursive calls.
        (make_compound_operation_int): Change the type of the mode parameter
        to scalar_int_mode and update the call to extract_left_shift.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (simplify_and_const_int): Change the type of the mode
        parameter to scalar_int_mode.
        (simplify_and_const_int_1): Likewise.  Update recursive call.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (simplify_compare_const): Check that the mode is a
        scalar_int_mode (rather than VOIDmode) before testing its
        precision.
        (simplify_comparison): Move COMPARISON_P handling out of the
        loop and restrict the latter part of the loop to scalar_int_modes.
        Check is_a <scalar_int_mode> before calling HWI_COMPUTABLE_MODE_P
        and when considering SUBREG_REGs.  Use is_int_mode instead of
        checking GET_MODE_CLASS against MODE_INT.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (try_widen_shift_mode): Move check for equal modes to...
        (simplify_shift_const_1): ...here.  Use scalar_int_mode for
        shift_unit_mode and for modes involved in scalar shifts.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (force_int_to_mode): New function, split out from...
        (force_to_mode): ...here.  Keep xmode up-to-date and use it
        instead of GET_MODE (x).

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * optabs-query.h (extraction_insn::struct_mode): Change type to
        opt_scalar_int_mode and update comment.
        (extraction_insn::field_mode): Change type to scalar_int_mode.
        (extraction_insn::pos_mode): Likewise.
        * combine.c (make_extraction): Update accordingly.
        * optabs-query.c (get_traditional_extraction_insn): Likewise.
        (get_optab_extraction_insn): Likewise.
        * recog.c (simplify_while_replacing): Likewise.
        * expmed.c (narrow_bit_field_mem): Change the type of the mode
        parameter to opt_scalar_int_mode.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * machmode.h (bit_field_mode_iterator::next_mode): Take a pointer
        to a scalar_int_mode instead of a machine_mode.
        (bit_field_mode_iterator::m_mode): Change type to opt_scalar_int_mode.
        (get_best_mode): Return a boolean and use a pointer argument to store
        the selected mode.  Replace the limit mode parameter with a bit limit.
        * expmed.c (adjust_bit_field_mem_for_reg): Use scalar_int_mode
        for the values returned by bit_field_mode_iterator::next_mode.
        (store_bit_field): Update call to get_best_mode.
        (store_fixed_bit_field): Likewise.
        (extract_fixed_bit_field): Likewise.
        * expr.c (optimize_bitfield_assignment_op): Likewise.
        * fold-const.c (optimize_bit_field_compare): Likewise.
        (fold_truth_andor_1): Likewise.
        * stor-layout.c (bit_field_mode_iterator::next_mode): As above.
        Update for new type of m_mode.
        (get_best_mode): As above.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expmed.c (strict_volatile_bitfield_p): Change the type of fieldmode
        to scalar_int_mode.  Remove check for SCALAR_INT_MODE_P.
        (store_bit_field): Check is_a <scalar_int_mode> before calling
        strict_volatile_bitfield_p.
        (extract_bit_field): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (cstore_mode): Return a scalar_int_mode.
        * doc/tm.texi: Regenerate.
        * config/sparc/sparc.c (sparc_cstore_mode): Return a scalar_int_mode.
        * targhooks.h (default_cstore_mode): Likewise.
        * targhooks.c (default_cstore_mode): Likewise, using a forced
        conversion.
        * expmed.c (emit_cstore): Expect the target of the cstore to be
        a scalar_int_mode.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * cfgloop.h (rtx_iv): Change type of extend_mode and mode to
        scalar_int_mode.
        (niter_desc): Likewise mode.
        (iv_analyze): Add a mode parameter.
        (biv_p): Likewise.
        (iv_analyze_expr): Pass the mode paraeter before the rtx it describes
        and change its type to scalar_int_mode.
        * loop-iv.c: Update commentary at head of file.
        (iv_constant): Pass the mode paraeter before the rtx it describes
        and change its type to scalar_int_mode.  Remove VOIDmode handling.
        (iv_subreg): Change the type of the mode parameter to scalar_int_mode.
        (iv_extend): Likewise.
        (shorten_into_mode): Likewise.
        (iv_add): Use scalar_int_mode.
        (iv_mult): Likewise.
        (iv_shift): Likewise.
        (canonicalize_iv_subregs): Likewise.
        (get_biv_step_1): Pass the outer_mode parameter before the rtx
        it describes and change its mode to scalar_int_mode.   Also change
        the type of the returned inner_mode to scalar_int_mode.
        (get_biv_step): Likewise, turning outer_mode from a pointer
        into a direct parameter.  Update call to get_biv_step_1.
        (iv_analyze_biv): Add an outer_mode parameter.  Update calls to
        iv_constant and get_biv_step.
        (iv_analyze_expr): Pass the mode parameter before the rtx it describes
        and change its type to scalar_int_mode.  Don't initialise iv->mode
        to VOIDmode and remove later checks for its still being VOIDmode.
        Update calls to iv_analyze_op and iv_analyze_expr.  Check
        is_a <scalar_int_mode> when changing the mode under consideration.
        (iv_analyze_def): Ignore registers that don't have a scalar_int_mode.
        Update call to iv_analyze_expr.
        (iv_analyze_op): Add a mode parameter.  Reject subregs whose
        inner register is not also a scalar_int_mode.  Update call to
        iv_analyze_biv.
        (iv_analyze): Add a mode parameter.  Update call to iv_analyze_op.
        (biv_p): Add a mode parameter.  Update call to iv_analyze_biv.
        (iv_number_of_iterations): Use is_a <scalar_int_mode> instead of
        separate mode class checks.  Update calls to iv_analyze.  Remove
        fix-up of VOIDmodes after iv_analyze_biv.
        * loop-unroll.c (analyze_iv_to_split_insn): Reject registers that
        don't have a scalar_int_mode.  Update call to biv_p.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * cfgexpand.c (convert_debug_memory_address): Use
        as_a <scalar_int_mode>.
        * combine.c (expand_compound_operation): Likewise.
        (make_extraction): Likewise.
        (change_zero_ext): Likewise.
        (simplify_comparison): Likewise.
        * cse.c (cse_insn): Likewise.
        * dwarf2out.c (minmax_loc_descriptor): Likewise.
        (mem_loc_descriptor): Likewise.
        (loc_descriptor): Likewise.
        * expmed.c (init_expmed_one_mode): Likewise.
        (synth_mult): Likewise.
        (emit_store_flag_1): Likewise.
        (expand_divmod): Likewise.  Use HWI_COMPUTABLE_MODE_P instead
        of a comparison with size.
        * expr.c (expand_assignment): Use as_a <scalar_int_mode>.
        (reduce_to_bit_field_precision): Likewise.
        * function.c (expand_function_end): Likewise.
        * internal-fn.c (expand_arith_overflow_result_store): Likewise.
        * loop-doloop.c (doloop_modify): Likewise.
        * optabs.c (expand_binop): Likewise.
        (expand_unop): Likewise.
        (expand_copysign_absneg): Likewise.
        (prepare_cmp_insn): Likewise.
        (maybe_legitimize_operand): Likewise.
        * recog.c (const_scalar_int_operand): Likewise.
        * rtlanal.c (get_address_mode): Likewise.
        * simplify-rtx.c (simplify_unary_operation_1): Likewise.
        (simplify_cond_clz_ctz): Likewise.
        * tree-nested.c (get_nl_goto_field): Likewise.
        * tree.c (build_vector_type_for_mode): Likewise.
        * var-tracking.c (use_narrower_mode): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree.h (SCALAR_INT_TYPE_MODE): New macro.
        * builtins.c (expand_builtin_signbit): Use it.
        * cfgexpand.c (expand_debug_expr): Likewise.
        * dojump.c (do_jump): Likewise.
        (do_compare_and_jump): Likewise.
        * dwarf2cfi.c (expand_builtin_init_dwarf_reg_sizes): Likewise.
        * expmed.c (make_tree): Likewise.
        * expr.c (expand_expr_real_2): Likewise.
        (expand_expr_real_1): Likewise.
        (try_casesi): Likewise.
        * fold-const-call.c (fold_const_call_ss): Likewise.
        * fold-const.c (unextend): Likewise.
        (extract_muldiv_1): Likewise.
        (fold_single_bit_test): Likewise.
        (native_encode_int): Likewise.
        (native_encode_string): Likewise.
        (native_interpret_int): Likewise.
        * gimple-fold.c (gimple_fold_builtin_memset): Likewise.
        * internal-fn.c (expand_addsub_overflow): Likewise.
        (expand_neg_overflow): Likewise.
        (expand_mul_overflow): Likewise.
        (expand_arith_overflow): Likewise.
        * match.pd: Likewise.
        * stor-layout.c (layout_type): Likewise.
        * tree-cfg.c (verify_gimple_assign_ternary): Likewise.
        * tree-ssa-math-opts.c (convert_mult_to_widen): Likewise.
        * tree-ssanames.c (get_range_info): Likewise.
        * tree-switch-conversion.c (array_value_type) Likewise.
        * tree-vect-patterns.c (vect_recog_rotate_pattern): Likewise.
        (vect_recog_divmod_pattern): Likewise.
        (vect_recog_mixed_size_cond_pattern): Likewise.
        * tree-vrp.c (extract_range_basic): Likewise.
        (simplify_float_conversion_using_ranges): Likewise.
        * tree.c (int_fits_type_p): Likewise.
        * ubsan.c (instrument_bool_enum_load): Likewise.
        * varasm.c (mergeable_string_section): Likewise.
        (narrowing_initializer_constant_valid_p): Likewise.
        (output_constant): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * machmode.h (NARROWEST_INT_MODE): New macro.
        * expr.c (alignment_for_piecewise_move): Use it instead of
        GET_CLASS_NARROWEST_MODE (MODE_INT).
        (push_block): Likewise.
        * stor-layout.c (bit_field_mode_iterator::bit_field_mode_iterator):
        Likewise.
        * tree-vrp.c (simplify_float_conversion_using_ranges): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * postreload.c (move2add_valid_value_p): Change the type of the
        mode parameter to scalar_int_mode.
        (move2add_use_add2_insn): Add a mode parameter and use it instead
        of GET_MODE (reg).
        (move2add_use_add3_insn): Likewise.
        (reload_cse_move2add): Update accordingly.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * expr.c (expand_expr_real_2): Use scalar_int_mode for the
        double-word mode.
        * lower-subreg.c (resolve_shift_zext): Use is_a <scalar_int_mode>.
        * optabs.c (expand_unop): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * dwarf2out.c (typed_binop): Change mode parameter to scalar_int_mode.
        (clz_loc_descriptor): Likewise.  Remove SCALAR_INT_MODE_P check.
        (popcount_loc_descriptor): Likewise.
        (bswap_loc_descriptor): Likewise.
        (rotate_loc_descriptor): Likewise.
        (mem_loc_descriptor): Add is_a <scalar_int_mode> checks before
        calling the functions above.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (sign_extend_short_imm): Add is_a <scalar_int_mode>
        checks.
        (try_combine): Likewise.
        (simplify_if_then_else): Likewise.
        * cse.c (cse_insn): Likewise.
        * dwarf2out.c (mem_loc_descriptor): Likewise.
        * emit-rtl.c (gen_lowpart_common): Likewise.
        * simplify-rtx.c (simplify_truncation): Likewise.
        (simplify_binary_operation_1): Likewise.
        (simplify_const_relational_operation): Likewise.
        (simplify_ternary_operation): Likewise.
        * tree-ssa-loop-ivopts.c (force_expr_to_var_cost): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * cse.c (cse_insn): Add is_a <scalar_int_mode> checks.
        * reload.c (push_reload): Likewise.
        (find_reloads): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (find_split_point): Add is_a <scalar_int_mode> checks.
        (make_compound_operation_int): Likewise.
        (change_zero_ext): Likewise.
        * expr.c (convert_move): Likewise.
        (convert_modes): Likewise.
        * fwprop.c (forward_propagate_subreg): Likewise.
        * loop-iv.c (get_biv_step_1): Likewise.
        * optabs.c (widen_operand): Likewise.
        * postreload.c (move2add_valid_value_p): Likewise.
        * recog.c (simplify_while_replacing): Likewise.
        * simplify-rtx.c (simplify_unary_operation_1): Likewise.
        (simplify_binary_operation_1): Likewise.  Remove redundant
        mode equality check.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (combine_simplify_rtx): Add checks for
        is_a <scalar_int_mode>.
        (simplify_if_then_else): Likewise.
        (make_field_assignment): Likewise.
        (simplify_comparison): Likewise.
        * ifcvt.c (noce_try_bitop): Likewise.
        * loop-invariant.c (canonicalize_address_mult): Likewise.
        * simplify-rtx.c (simplify_unary_operation_1): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * gimple-fold.c (gimple_fold_builtin_memory_op): Use
        is_a <scalar_int_mode> instead of != BLKmode.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * cfgexpand.c (expand_debug_expr): Use is_a <scalar_int_mode>
        instead of != VOIDmode.
        * combine.c (if_then_else_cond): Likewise.
        (change_zero_ext): Likewise.
        * dwarf2out.c (mem_loc_descriptor): Likewise.
        (loc_descriptor): Likewise.
        * rtlanal.c (canonicalize_condition): Likewise.
        * simplify-rtx.c (simplify_relational_operation_1): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * simplify-rtx.c (simplify_binary_operation_1): Use
        is_a <scalar_int_mode> instead of !VECTOR_MODE_P.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * wide-int.h (int_traits<unsigned char>) New class.
        (int_traits<unsigned short>) Likewise.
        * cfgexpand.c (expand_debug_expr): Use is_a <scalar_int_mode>.
        Use GET_MODE_UNIT_PRECISION and remove redundant test for
        SCALAR_INT_MODE_P.
        * combine.c (set_nonzero_bits_and_sign_copies): Use
        is_a <scalar_int_mode>.
        (find_split_point): Likewise.
        (combine_simplify_rtx): Likewise.
        (simplify_logical): Likewise.
        (expand_compound_operation): Likewise.
        (expand_field_assignment): Likewise.
        (make_compound_operation): Likewise.
        (extended_count): Likewise.
        (change_zero_ext): Likewise.
        (simplify_comparison): Likewise.
        * dwarf2out.c (scompare_loc_descriptor): Likewise.
        (ucompare_loc_descriptor): Likewise.
        (minmax_loc_descriptor): Likewise.
        (mem_loc_descriptor): Likewise.
        (loc_descriptor): Likewise.
        * expmed.c (init_expmed_one_mode): Likewise.
        * lra-constraints.c (lra_constraint_offset): Likewise.
        * optabs.c (prepare_libcall_arg): Likewise.
        * postreload.c (move2add_note_store): Likewise.
        * reload.c (operands_match_p): Likewise.
        * rtl.h (load_extend_op): Likewise.
        * rtlhooks.c (gen_lowpart_general): Likewise.
        * simplify-rtx.c (simplify_truncation): Likewise.
        (simplify_unary_operation_1): Likewise.
        (simplify_binary_operation_1): Likewise.
        (simplify_const_binary_operation): Likewise.
        (simplify_const_relational_operation): Likewise.
        (simplify_subreg): Likewise.
        * stor-layout.c (bitwise_mode_for_mode): Likewise.
        * var-tracking.c (adjust_mems): Likewise.
        (prepare_call_arguments): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * machmode.h (is_int_mode): New fuction.
        * combine.c (find_split_point): Use it.
        (combine_simplify_rtx): Likewise.
        (simplify_if_then_else): Likewise.
        (simplify_set): Likewise.
        (simplify_shift_const_1): Likewise.
        (simplify_comparison): Likewise.
        * config/aarch64/aarch64.c (aarch64_rtx_costs): Likewise.
        * cse.c (notreg_cost): Likewise.
        (cse_insn): Likewise.
        * cselib.c (cselib_lookup_1): Likewise.
        * dojump.c (do_jump_1): Likewise.
        (do_compare_rtx_and_jump): Likewise.
        * dse.c (get_call_args): Likewise.
        * dwarf2out.c (rtl_for_decl_init): Likewise.
        (native_encode_initializer): Likewise.
        * expmed.c (emit_store_flag_1): Likewise.
        (emit_store_flag): Likewise.
        * expr.c (convert_modes): Likewise.
        (store_field): Likewise.
        (expand_expr_real_1): Likewise.
        * fold-const.c (fold_read_from_constant_string): Likewise.
        * gimple-ssa-sprintf.c (get_format_string): Likewise.
        * optabs-libfuncs.c (gen_int_libfunc): Likewise.
        * optabs.c (expand_binop): Likewise.
        (expand_unop): Likewise.
        (expand_abs_nojump): Likewise.
        (expand_one_cmpl_abs_nojump): Likewise.
        * simplify-rtx.c (mode_signbit_p): Likewise.
        (val_signbit_p): Likewise.
        (val_signbit_known_set_p): Likewise.
        (val_signbit_known_clear_p): Likewise.
        (simplify_relational_operation_1): Likewise.
        * tree.c (vector_type_mode): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * machmode.h (smallest_mode_for_size): Fix formatting.
        (smallest_int_mode_for_size): New function.
        * cfgexpand.c (expand_debug_expr): Use smallest_int_mode_for_size
        instead of smallest_mode_for_size.
        * combine.c (make_extraction): Likewise.
        * config/arc/arc.c (arc_expand_movmem): Likewise.
        * config/arm/arm.c (arm_expand_divmod_libfunc): Likewise.
        * config/i386/i386.c (ix86_get_mask_mode): Likewise.
        * config/s390/s390.c (s390_expand_insv): Likewise.
        * config/sparc/sparc.c (assign_int_registers): Likewise.
        * config/spu/spu.c (spu_function_value): Likewise.
        (spu_function_arg): Likewise.
        * coverage.c (get_gcov_type): Likewise.
        (get_gcov_unsigned_t): Likewise.
        * dse.c (find_shift_sequence): Likewise.
        * expmed.c (store_bit_field_1): Likewise.
        * expr.c (convert_move): Likewise.
        (store_field): Likewise.
        * internal-fn.c (expand_arith_overflow): Likewise.
        * optabs-query.c (get_best_extraction_insn): Likewise.
        * optabs.c (expand_twoval_binop_libfunc): Likewise.
        * stor-layout.c (layout_type): Likewise.
        (initialize_sizetypes): Likewise.
        * targhooks.c (default_get_mask_mode): Likewise.
        * tree-ssa-loop-manip.c (canonicalize_loop_ivs): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * machmode.h (opt_mode::else_blk): New function.
        (int_mode_for_mode): Declare.
        * stor-layout.c (int_mode_for_mode): Return an opt_scalar_int_mode.
        * builtins.c (expand_builtin_signbit): Adjust for new int_mode_for_mode
        return type.
        * cfgexpand.c (expand_debug_expr): Likewise.
        * combine.c (gen_lowpart_or_truncate): Likewise.
        (gen_lowpart_for_combine): Likewise.
        * config/aarch64/aarch64.c (aarch64_emit_approx_sqrt): Likewise.
        * config/avr/avr.c (avr_to_int_mode): Likewise.
        (avr_out_plus_1): Likewise.
        (avr_out_plus): Likewise.
        (avr_out_round): Likewise.
        * config/i386/i386.c (ix86_split_to_parts): Likewise.
        * config/s390/s390.c (s390_expand_vec_compare_cc): Likewise.
        (s390_expand_vcond): Likewise.
        * config/spu/spu.c (spu_split_immediate): Likewise.
        (spu_expand_mov): Likewise.
        * dse.c (get_stored_val): Likewise.
        * expmed.c (store_bit_field_1): Likewise.
        (convert_extracted_bit_field): Use int_mode_for_mode instead of
        int_mode_for_size.
        (extract_bit_field_1): Adjust for new int_mode_for_mode return type.
        (extract_low_bits): Likewise.
        * expr.c (emit_group_load_1): Likewise.  Separate out the BLKmode
        handling rather than repeating the check.
        (emit_group_store): Likewise.
        (emit_move_via_integer): Adjust for new int_mode_for_mode return type.
        * optabs.c (expand_absneg_bit): Likewise.
        (expand_copysign_absneg): Likewise.
        (expand_copysign_bit): Likewise.
        * tree-if-conv.c (ifcvt_can_use_mask_load_store): Likewise.
        * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
        * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise.
        * var-tracking.c (prepare_call_arguments):  Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_do_expand_vec_perm): Use
        int_mode_for_mode instead of mode_for_size.
        * config/rs6000/rs6000.c (rs6000_do_expand_vec_perm): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * machmode.h (int_mode_for_size): New function.
        * builtins.c (set_builtin_user_assembler_name): Use int_mode_for_size
        instead of mode_for_size.
        * calls.c (save_fixed_argument_area): Likewise.  Make use of BLKmode
        explicit.
        * combine.c (expand_field_assignment): Use int_mode_for_size
        instead of mode_for_size.
        (make_extraction): Likewise.
        (simplify_shift_const_1): Likewise.
        (simplify_comparison): Likewise.
        * dojump.c (do_jump): Likewise.
        * dwarf2out.c (mem_loc_descriptor): Likewise.
        * emit-rtl.c (init_derived_machine_modes): Likewise.
        * expmed.c (flip_storage_order): Likewise.
        (convert_extracted_bit_field): Likewise.
        * expr.c (copy_blkmode_from_reg): Likewise.
        * graphite-isl-ast-to-gimple.c (max_mode_int_precision): Likewise.
        * internal-fn.c (expand_mul_overflow): Likewise.
        * lower-subreg.c (simple_move): Likewise.
        * optabs-libfuncs.c (init_optabs): Likewise.
        * simplify-rtx.c (simplify_unary_operation_1): Likewise.
        * tree.c (vector_type_mode): Likewise.
        * tree-ssa-strlen.c (handle_builtin_memcmp): Likewise.
        * tree-vect-data-refs.c (vect_lanes_optab_supported_p): Likewise.
        * tree-vect-generic.c (expand_vector_parallel): Likewise.
        * tree-vect-stmts.c (vectorizable_load): Likewise.
        (vectorizable_store): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * coretypes.h (pod_mode): New type.
        (scalar_int_mode_pod): New typedef.
        * machmode.h (pod_mode): New class.
        (int_n_data_t::m): Change type to scalar_int_mode_pod.
        * genmodes.c (emit_mode_int_n): Update accordingly.
        * lower-subreg.h (target_lower_subreg): Change type to
        scalar_int_mode_pod.
        * gdbhooks.py (build_pretty_printer): Handle pod_mode and
        scalar_int_mode_pod.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/powerpcspe/powerpcspe.h (rs6000_pmode): Change type from
        machine_mode to scalar_int_mode.
        * config/powerpcspe/powerpcspe.c (rs6000_pmode): Likewise.
        (rs6000_option_override_internal): Remove cast to int.
        * config/rs6000/rs6000.h (rs6000_pmode): Change type from
        machine_mode to scalar_int_mode.
        * config/rs6000/rs6000.c (rs6000_pmode): Likewise.
        (rs6000_option_override_internal): Remove cast to int.
        * config/s390/s390.h (Pmode): Remove cast to machine_mode.
        * config/epiphany/epiphany.h (RTX_OK_FOR_OFFSET_P): Add cast
        to machine_mode.
        * config/s390/s390.c (s390_expand_builtin): Likewise.
        * coretypes.h (scalar_int_mode): New type.
        (opt_scalar_int_mode): New typedef.
        * machmode.h (scalar_int_mode): New class.
        (scalar_int_mode::includes_p): New function.
        (byte_mode): Change type to scalar_int_mode.
        (word_mode): Likewise.
        (ptr_mode): Likewise.
        * emit-rtl.c (byte_mode): Likewise.
        (word_mode): Likewise.
        (ptr_mode): Likewise.
        (init_derived_machine_modes): Update accordingly.
        * genmodes.c (get_mode_class): Return scalar_int_mode for MODE_INT
        and MODE_PARTIAL_INT.
        * gdbhooks.py (build_pretty_printer): Handle scalar_int_mode and
        opt_scalar_int_mode.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (libgcc_floating_mode_supported_p): Take a
        scalar_float_mode.
        * doc/tm.texi: Regenerate.
        * targhooks.h (default_libgcc_floating_mode_supported_p): Take a
        scalar_float_mode.
        * targhooks.c (default_libgcc_floating_mode_supported_p): Likewise.
        * config/aarch64/aarch64.c (aarch64_libgcc_floating_mode_supported_p):
        Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (default_floatn_mode): Return an opt_scalar_float_mode.
        * doc/tm.texi: Regenerate.
        * config/arm/arm.c (arm_floatn_mode): Return an opt_scalar_float_mode.
        * config/powerpcspe/powerpcspe.c (rs6000_floatn_mode): Likewise.
        * config/rs6000/rs6000.c (rs6000_floatn_mode): Likewise.
        * targhooks.h (default_floatn_mode): Likewise.
        * targhooks.c (default_floatn_mode): Likewise.
        * tree.c (build_common_tree_nodes): Update accordingly.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * machmode.h (mode_iterator::start): Provide overload for opt_modes.
        (mode_iterator::iterate_p): Likewise.
        (mode_iterator::get_wider): Likewise.
        * expr.c (init_expr_target): Use opt_scalar_float_mode.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * coretypes.h (opt_scalar_float_mode): New typedef.
        * machmode.h (float_mode_for_size): New function.
        * emit-rtl.c (double_mode): Delete.
        (init_emit_once): Use float_mode_for_size.
        * stor-layout.c (layout_type): Likewise.
        * gdbhooks.py (build_pretty_printer): Handle opt_scalar_float_mode.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * output.h (assemble_real): Take a scalar_float_mode.
        * config/arm/arm.c (arm_assemble_integer): Update accordingly.
        * config/arm/arm.md (consttable_4): Likewise.
        (consttable_8): Likewise.
        (consttable_16): Likewise.
        * config/mips/mips.md (consttable_float): Likewise.
        * config/s390/s390.c (s390_output_pool_entry): Likewise.
        * varasm.c (assemble_real): Take a scalar_float_mode.
        (output_constant_pool_2): Update accordingly.
        (output_constant): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree.h (SCALAR_FLOAT_TYPE_MODE): New macro.
        * builtins.c (expand_builtin_signbit): Use it instead of TYPE_MODE.
        * fold-const.c (fold_convert_const_real_from_fixed): Likewise.
        (native_encode_real): Likewise.
        (native_interpret_real): Likewise.
        * hsa-brig.c (emit_immediate_scalar_to_buffer): Likewise.
        * tree-vrp.c (simplify_float_conversion_using_ranges): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * optabs-libfuncs.c (gen_trunc_conv_libfunc): Use is_a
        <scalar_float_mode>.  Simplify.
        (gen_extend_conv_libfunc): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * coretypes.h (scalar_float_mode): New type.
        * machmode.h (mode_traits::from_int): Use machine_mode if
        USE_ENUM_MODES is defined.
        (is_a): New function.
        (as_a): Likewise.
        (dyn_cast): Likewise.
        (scalar_float_mode): New class.
        (scalar_float_mode::includes_p): New function.
        (is_float_mode): Likewise.
        * gdbhooks.py (MachineModePrinter): New class.
        (build_pretty_printer): Use it for scalar_float_mode.
        * real.h (FLOAT_MODE_FORMAT): Use as_a <scalar_float_mode>.
        (format_helper::format_helper): Turn into a template.
        * genmodes.c (get_mode_class): New function.
        (emit_insn_modes_h): Give modes the class returned by get_mode_class,
        or machine_mode if none.
        * config/aarch64/aarch64.c (aarch64_simd_valid_immediate): Use
        as_a <scalar_float_mode>.
        * dwarf2out.c (mem_loc_descriptor): Likewise.
        (insert_float): Likewise.
        (add_const_value_attribute): Likewise.
        * simplify-rtx.c (simplify_immed_subreg): Likewise.
        * optabs.c (expand_absneg_bit): Take a scalar_float_mode.
        (expand_unop): Update accordingly.
        (expand_abs_nojump): Likewise.
        (expand_copysign_absneg): Take a scalar_float_mode.
        (expand_copysign_bit): Likewise.
        (expand_copysign): Update accordingly.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * coretypes.h (opt_mode): New class.
        * machmode.h (opt_mode): Likewise.
        (opt_mode::else_void): New function.
        (opt_mode::require): Likewise.
        (opt_mode::exists): Likewise.
        (GET_MODE_WIDER_MODE): Turn into a function and return an opt_mode.
        (GET_MODE_2XWIDER_MODE): Likewise.
        (mode_iterator::get_wider): Update accordingly.
        (mode_iterator::get_2xwider): Likewise.
        (mode_iterator::get_known_wider): Likewise, turning into a template.
        * combine.c (make_extraction): Update use of GET_MODE_WIDER_MODE,
        forcing a wider mode to exist.
        * config/cr16/cr16.h (LONG_REG_P): Likewise.
        * rtlanal.c (init_num_sign_bit_copies_in_rep): Likewise.
        * config/c6x/c6x.c (c6x_rtx_costs): Update use of
        GET_MODE_2XWIDER_MODE, forcing a wider mode to exist.
        * lower-subreg.c (init_lower_subreg): Likewise.
        * optabs-libfuncs.c (init_sync_libfuncs_1): Likewise, but not
        on the final iteration.
        * config/i386/i386.c (ix86_expand_set_or_movmem): Check whether
        a wider mode exists before asking for a move pattern.
        (get_mode_wider_vector): Update use of GET_MODE_WIDER_MODE,
        forcing a wider mode to exist.
        (expand_vselect_vconcat): Update use of GET_MODE_2XWIDER_MODE,
        returning false if no such mode exists.
        * config/ia64/ia64.c (expand_vselect_vconcat): Likewise.
        * config/mips/mips.c (mips_expand_vselect_vconcat): Likewise.
        * expmed.c (init_expmed_one_mode): Update use of GET_MODE_WIDER_MODE.
        Avoid checking for a MODE_INT if we already know the mode is not a
        SCALAR_INT_MODE_P.
        (extract_high_half): Update use of GET_MODE_WIDER_MODE,
        forcing a wider mode to exist.
        (expmed_mult_highpart_optab): Likewise.
        (expmed_mult_highpart): Likewise.
        * expr.c (expand_expr_real_2): Update use of GET_MODE_WIDER_MODE,
        using else_void.
        * lto-streamer-in.c (lto_input_mode_table): Likewise.
        * optabs-query.c (find_widening_optab_handler_and_mode): Likewise.
        * stor-layout.c (bit_field_mode_iterator::next_mode): Likewise.
        * internal-fn.c (expand_mul_overflow): Update use of
        GET_MODE_2XWIDER_MODE.
        * omp-low.c (omp_clause_aligned_alignment): Likewise.
        * tree-ssa-math-opts.c (convert_mult_to_widen): Update use of
        GET_MODE_WIDER_MODE.
        (convert_plusminus_to_widen): Likewise.
        * tree-switch-conversion.c (array_value_type): Likewise.
        * var-tracking.c (emit_note_insn_var_location): Likewise.
        * tree-vrp.c (simplify_float_conversion_using_ranges): Likewise.
        Return false inside rather than outside the loop if no wider mode
        exists
        * optabs.c (expand_binop): Update use of GET_MODE_WIDER_MODE
        and GET_MODE_2XWIDER_MODE
        (can_compare_p): Use else_void.
        * gdbhooks.py (OptMachineModePrinter): New class.
        (build_pretty_printer): Use it for opt_mode.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * tree-switch-conversion.c (array_value_type): Only read TYPE_MODE
        once.  Use get_narrowest_mode instead of GET_CLASS_NARROWEST_MODE.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * machmode.h (mode_traits): New structure.
        (get_narrowest_mode): New function.
        (mode_iterator::start): Likewise.
        (mode_iterator::iterate_p): Likewise.
        (mode_iterator::get_wider): Likewise.
        (mode_iterator::get_known_wider): Likewise.
        (mode_iterator::get_2xwider): Likewise.
        (FOR_EACH_MODE_IN_CLASS): New mode iterator.
        (FOR_EACH_MODE): Likewise.
        (FOR_EACH_MODE_FROM): Likewise.
        (FOR_EACH_MODE_UNTIL): Likewise.
        (FOR_EACH_WIDER_MODE): Likewise.
        (FOR_EACH_2XWIDER_MODE): Likewise.
        * builtins.c (expand_builtin_strlen): Use new mode iterators.
        * combine.c (simplify_comparison): Likewise
        * config/i386/i386.c (type_natural_mode): Likewise.
        * cse.c (cse_insn): Likewise.
        * dse.c (find_shift_sequence): Likewise.
        * emit-rtl.c (init_derived_machine_modes): Likewise.
        (init_emit_once): Likewise.
        * explow.c (hard_function_value): Likewise.
        * expmed.c (extract_fixed_bit_field_1): Likewise.
        (extract_bit_field_1): Likewise.
        (expand_divmod): Likewise.
        (emit_store_flag_1): Likewise.
        * expr.c (init_expr_target): Likewise.
        (convert_move): Likewise.
        (alignment_for_piecewise_move): Likewise.
        (widest_int_mode_for_size): Likewise.
        (emit_block_move_via_movmem): Likewise.
        (copy_blkmode_to_reg): Likewise.
        (set_storage_via_setmem): Likewise.
        (compress_float_constant): Likewise.
        * omp-low.c (omp_clause_aligned_alignment): Likewise.
        * optabs-query.c (get_best_extraction_insn): Likewise.
        * optabs.c (expand_binop): Likewise.
        (expand_twoval_unop): Likewise.
        (expand_twoval_binop): Likewise.
        (widen_leading): Likewise.
        (widen_bswap): Likewise.
        (expand_parity): Likewise.
        (expand_unop): Likewise.
        (prepare_cmp_insn): Likewise.
        (prepare_float_lib_cmp): Likewise.
        (expand_float): Likewise.
        (expand_fix): Likewise.
        (expand_sfix_optab): Likewise.
        * postreload.c (move2add_use_add2_insn): Likewise.
        * reg-stack.c (reg_to_stack): Likewise.
        * reginfo.c (choose_hard_reg_mode): Likewise.
        * rtlanal.c (init_num_sign_bit_copies_in_rep): Likewise.
        * stor-layout.c (mode_for_size): Likewise.
        (smallest_mode_for_size): Likewise.
        (mode_for_vector): Likewise.
        (finish_bitfield_representative): Likewise.
        * tree-ssa-math-opts.c (target_supports_divmod_p): Likewise.
        * tree-vect-generic.c (type_for_widest_vector_mode): Likewise.
        * tree-vect-stmts.c (vectorizable_conversion): Likewise.
        * var-tracking.c (prepare_call_arguments): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * genconditions.c (write_header): Add a "#define USE_ENUM_MODES".
        * genmodes.c (emit_insn_modes_h): Define FOOmode to E_FOOmode if
        USE_ENUM_MODES is defined and to ((void) 0, E_FOOmode) otherwise.
        * machmode.h (mode_size): Move earlier in file.
        (mode_precision): Likewise.
        (mode_inner): Likewise.
        (mode_nunits): Likewise.
        (mode_unit_size): Likewise.
        (unit_unit_precision): Likewise.
        (mode_wider): Likewise.
        (mode_2xwider): Likewise.
        (machine_mode): New class.
        (mode_to_bytes): New function.
        (mode_to_bits): Likewise.
        (mode_to_precision): Likewise.
        (mode_to_inner): Likewise.
        (mode_to_unit_size): Likewise.
        (mode_to_unit_precision): Likewise.
        (mode_to_nunits): Likewise.
        (GET_MODE_SIZE): Use mode_to_bytes.
        (GET_MODE_BITSIZE): Use mode_to_bits.
        (GET_MODE_PRECISION): Use mode_to_precision.
        (GET_MODE_INNER): Use mode_to_inner.
        (GET_MODE_UNIT_SIZE): Use mode_to_unit_size.
        (GET_MODE_UNIT_PRECISION): Use mode_to_unit_precision.
        (GET_MODE_NUNITS): Use mode_to_nunits.
        * system.h (ALWAYS_INLINE): New macro.
        * config/powerpcspe/powerpcspe-c.c
        (altivec_resolve_overloaded_builtin): Use machine_mode instead of
        int for arg1_mode and arg2_mode.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64-builtins.c (aarch64_simd_builtin_std_type):
        Prefix mode names with E_ in case statements.
        * config/aarch64/aarch64-elf.h (ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
        * config/aarch64/aarch64.c (aarch64_split_simd_combine): Likewise.
        (aarch64_split_simd_move): Likewise.
        (aarch64_gen_storewb_pair): Likewise.
        (aarch64_gen_loadwb_pair): Likewise.
        (aarch64_gen_store_pair): Likewise.
        (aarch64_gen_load_pair): Likewise.
        (aarch64_get_condition_code_1): Likewise.
        (aarch64_constant_pool_reload_icode): Likewise.
        (get_rsqrte_type): Likewise.
        (get_rsqrts_type): Likewise.
        (get_recpe_type): Likewise.
        (get_recps_type): Likewise.
        (aarch64_gimplify_va_arg_expr): Likewise.
        (aarch64_simd_container_mode): Likewise.
        (aarch64_emit_load_exclusive): Likewise.
        (aarch64_emit_store_exclusive): Likewise.
        (aarch64_expand_compare_and_swap): Likewise.
        (aarch64_gen_atomic_cas): Likewise.
        (aarch64_emit_bic): Likewise.
        (aarch64_emit_atomic_swap): Likewise.
        (aarch64_emit_atomic_load_op): Likewise.
        (aarch64_evpc_trn): Likewise.
        (aarch64_evpc_uzp): Likewise.
        (aarch64_evpc_zip): Likewise.
        (aarch64_evpc_ext): Likewise.
        (aarch64_evpc_rev): Likewise.
        (aarch64_evpc_dup): Likewise.
        (aarch64_gen_ccmp_first): Likewise.
        (aarch64_gen_ccmp_next): Likewise.
        * config/alpha/alpha.c (alpha_scalar_mode_supported_p): Likewise.
        (alpha_emit_xfloating_libcall): Likewise.
        (emit_insxl): Likewise.
        (alpha_arg_type): Likewise.
        * config/arc/arc.c (arc_vector_mode_supported_p): Likewise.
        (arc_preferred_simd_mode): Likewise.
        (arc_secondary_reload): Likewise.
        (get_arc_condition_code): Likewise.
        (arc_print_operand): Likewise.
        (arc_legitimate_constant_p): Likewise.
        * config/arc/arc.h (ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
        * config/arc/arc.md (casesi_load): Likewise.
        (casesi_compact_jump): Likewise.
        * config/arc/predicates.md (proper_comparison_operator): Likewise.
        (cc_use_register): Likewise.
        * config/arm/aout.h (ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
        * config/arm/arm-builtins.c (arm_simd_builtin_std_type): Likewise.
        (arm_init_iwmmxt_builtins): Likewise.
        * config/arm/arm.c (thumb1_size_rtx_costs): Likewise.
        (neon_expand_vector_init): Likewise.
        (arm_attr_length_move_neon): Likewise.
        (maybe_get_arm_condition_code): Likewise.
        (arm_emit_vector_const): Likewise.
        (arm_preferred_simd_mode): Likewise.
        (arm_output_iwmmxt_tinsr): Likewise.
        (thumb1_output_casesi): Likewise.
        (thumb2_output_casesi): Likewise.
        (arm_emit_load_exclusive): Likewise.
        (arm_emit_store_exclusive): Likewise.
        (arm_expand_compare_and_swap): Likewise.
        (arm_evpc_neon_vuzp): Likewise.
        (arm_evpc_neon_vzip): Likewise.
        (arm_evpc_neon_vrev): Likewise.
        (arm_evpc_neon_vtrn): Likewise.
        (arm_evpc_neon_vext): Likewise.
        (arm_validize_comparison): Likewise.
        * config/arm/neon.md (neon_vc<cmp_op><mode>): Likewise.
        * config/avr/avr-c.c (avr_resolve_overloaded_builtin): Likewise.
        * config/avr/avr.c (avr_rtx_costs_1): Likewise.
        * config/c6x/c6x.c (c6x_vector_mode_supported_p): Likewise.
        (c6x_preferred_simd_mode): Likewise.
        * config/epiphany/epiphany.c (get_epiphany_condition_code): Likewise.
        (epiphany_rtx_costs): Likewise.
        * config/epiphany/predicates.md (proper_comparison_operator):
        Likewise.
        * config/frv/frv.c (condexec_memory_operand): Likewise.
        (frv_emit_move): Likewise.
        (output_move_single): Likewise.
        (output_condmove_single): Likewise.
        (frv_hard_regno_mode_ok): Likewise.
        (frv_matching_accg_mode): Likewise.
        * config/h8300/h8300.c (split_adds_subs): Likewise.
        (h8300_rtx_costs): Likewise.
        (h8300_print_operand): Likewise.
        (compute_mov_length): Likewise.
        (output_logical_op): Likewise.
        (compute_logical_op_length): Likewise.
        (compute_logical_op_cc): Likewise.
        (h8300_shift_needs_scratch_p): Likewise.
        (output_a_shift): Likewise.
        (compute_a_shift_length): Likewise.
        (compute_a_shift_cc): Likewise.
        (expand_a_rotate): Likewise.
        (output_a_rotate): Likewise.
        * config/i386/i386.c (classify_argument): Likewise.
        (function_arg_advance_32): Likewise.
        (function_arg_32): Likewise.
        (function_arg_64): Likewise.
        (function_value_64): Likewise.
        (ix86_gimplify_va_arg): Likewise.
        (ix86_legitimate_constant_p): Likewise.
        (put_condition_code): Likewise.
        (split_double_mode): Likewise.
        (ix86_avx256_split_vector_move_misalign): Likewise.
        (ix86_expand_vector_logical_operator): Likewise.
        (ix86_split_idivmod): Likewise.
        (ix86_expand_adjust_ufix_to_sfix_si): Likewise.
        (ix86_build_const_vector): Likewise.
        (ix86_build_signbit_mask): Likewise.
        (ix86_match_ccmode): Likewise.
        (ix86_cc_modes_compatible): Likewise.
        (ix86_expand_branch): Likewise.
        (ix86_expand_sse_cmp): Likewise.
        (ix86_expand_sse_movcc): Likewise.
        (ix86_expand_int_sse_cmp): Likewise.
        (ix86_expand_vec_perm_vpermi2): Likewise.
        (ix86_expand_vec_perm): Likewise.
        (ix86_expand_sse_unpack): Likewise.
        (ix86_expand_int_addcc): Likewise.
        (ix86_split_to_parts): Likewise.
        (ix86_vectorize_builtin_gather): Likewise.
        (ix86_vectorize_builtin_scatter): Likewise.
        (avx_vpermilp_parallel): Likewise.
        (inline_memory_move_cost): Likewise.
        (ix86_tieable_integer_mode_p): Likewise.
        (x86_maybe_negate_const_int): Likewise.
        (ix86_expand_vector_init_duplicate): Likewise.
        (ix86_expand_vector_init_one_nonzero): Likewise.
        (ix86_expand_vector_init_one_var): Likewise.
        (ix86_expand_vector_init_concat): Likewise.
        (ix86_expand_vector_init_interleave): Likewise.
        (ix86_expand_vector_init_general): Likewise.
        (ix86_expand_vector_set): Likewise.
        (ix86_expand_vector_extract): Likewise.
        (emit_reduc_half): Likewise.
        (ix86_emit_i387_round): Likewise.
        (ix86_mangle_type): Likewise.
        (ix86_expand_round_sse4): Likewise.
        (expand_vec_perm_blend): Likewise.
        (canonicalize_vector_int_perm): Likewise.
        (ix86_expand_vec_one_operand_perm_avx512): Likewise.
        (expand_vec_perm_1): Likewise.
        (expand_vec_perm_interleave3): Likewise.
        (expand_vec_perm_even_odd_pack): Likewise.
        (expand_vec_perm_even_odd_1): Likewise.
        (expand_vec_perm_broadcast_1): Likewise.
        (ix86_vectorize_vec_perm_const_ok): Likewise.
        (ix86_expand_vecop_qihi): Likewise.
        (ix86_expand_mul_widen_hilo): Likewise.
        (ix86_expand_sse2_abs): Likewise.
        (ix86_expand_pextr): Likewise.
        (ix86_expand_pinsr): Likewise.
        (ix86_preferred_simd_mode): Likewise.
        (ix86_simd_clone_compute_vecsize_and_simdlen): Likewise.
        * config/i386/sse.md (*andnot<mode>3): Likewise.
        (<mask_codefor><code><mode>3<mask_name>): Likewise.
        (*<code><mode>3): Likewise.
        * config/ia64/ia64.c (ia64_expand_vecint_compare): Likewise.
        (ia64_expand_atomic_op): Likewise.
        (ia64_arg_type): Likewise.
        (ia64_mode_to_int): Likewise.
        (ia64_scalar_mode_supported_p): Likewise.
        (ia64_vector_mode_supported_p): Likewise.
        (expand_vec_perm_broadcast): Likewise.
        * config/iq2000/iq2000.c (iq2000_move_1word): Likewise.
        (iq2000_function_arg_advance): Likewise.
        (iq2000_function_arg): Likewise.
        * config/m32c/m32c.c (m32c_preferred_reload_class): Likewise.
        * config/m68k/m68k.c (output_dbcc_and_branch): Likewise.
        (m68k_libcall_value): Likewise.
        (m68k_function_value): Likewise.
        (sched_attr_op_type): Likewise.
        * config/mcore/mcore.c (mcore_output_move): Likewise.
        * config/microblaze/microblaze.c (microblaze_function_arg_advance):
        Likewise.
        (microblaze_function_arg): Likewise.
        * config/mips/mips.c (mips16_build_call_stub): Likewise.
        (mips_print_operand): Likewise.
        (mips_mode_ok_for_mov_fmt_p): Likewise.
        (mips_vector_mode_supported_p): Likewise.
        (mips_preferred_simd_mode): Likewise.
        (mips_expand_vpc_loongson_even_odd): Likewise.
        (mips_expand_vec_unpack): Likewise.
        (mips_expand_vi_broadcast): Likewise.
        (mips_expand_vector_init): Likewise.
        (mips_expand_vec_reduc): Likewise.
        (mips_expand_msa_cmp): Likewise.
        * config/mips/mips.md (casesi_internal_mips16_<mode>): Likewise.
        * config/mn10300/mn10300.c (mn10300_print_operand): Likewise.
        (cc_flags_for_mode): Likewise.
        * config/msp430/msp430.c (msp430_print_operand): Likewise.
        * config/nds32/nds32-md-auxiliary.c (nds32_mem_format): Likewise.
        (nds32_output_casesi_pc_relative): Likewise.
        * config/nds32/nds32.h (ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
        * config/nvptx/nvptx.c (nvptx_ptx_type_from_mode): Likewise.
        (nvptx_gen_unpack): Likewise.
        (nvptx_gen_pack): Likewise.
        (nvptx_gen_shuffle): Likewise.
        (nvptx_gen_wcast): Likewise.
        (nvptx_preferred_simd_mode): Likewise.
        * config/pa/pa.c (pa_secondary_reload): Likewise.
        * config/pa/predicates.md (base14_operand): Likewise.
        * config/powerpcspe/powerpcspe-c.c
        (altivec_resolve_overloaded_builtin): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_setup_reg_addr_masks):
        Likewise.
        (rs6000_preferred_simd_mode): Likewise.
        (output_vec_const_move): Likewise.
        (rs6000_expand_vector_extract): Likewise.
        (rs6000_split_vec_extract_var): Likewise.
        (reg_offset_addressing_ok_p): Likewise.
        (rs6000_legitimate_offset_address_p): Likewise.
        (rs6000_legitimize_address): Likewise.
        (rs6000_emit_set_const): Likewise.
        (rs6000_const_vec): Likewise.
        (rs6000_emit_move): Likewise.
        (spe_build_register_parallel): Likewise.
        (rs6000_darwin64_record_arg_recurse): Likewise.
        (swap_selector_for_mode): Likewise.
        (spe_init_builtins): Likewise.
        (paired_init_builtins): Likewise.
        (altivec_init_builtins): Likewise.
        (do_load_for_compare): Likewise.
        (rs6000_generate_compare): Likewise.
        (rs6000_expand_float128_convert): Likewise.
        (emit_load_locked): Likewise.
        (emit_store_conditional): Likewise.
        (rs6000_output_function_epilogue): Likewise.
        (rs6000_handle_altivec_attribute): Likewise.
        (rs6000_function_value): Likewise.
        (emit_fusion_gpr_load): Likewise.
        (emit_fusion_p9_load): Likewise.
        (emit_fusion_p9_store): Likewise.
        * config/powerpcspe/predicates.md (easy_fp_constant): Likewise.
        (fusion_gpr_mem_load): Likewise.
        (fusion_addis_mem_combo_load): Likewise.
        (fusion_addis_mem_combo_store): Likewise.
        * config/rs6000/predicates.md (easy_fp_constant): Likewise.
        (fusion_gpr_mem_load): Likewise.
        (fusion_addis_mem_combo_load): Likewise.
        (fusion_addis_mem_combo_store): Likewise.
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        Likewise.
        * config/rs6000/rs6000-string.c (do_load_for_compare): Likewise.
        * config/rs6000/rs6000.c (rs6000_setup_reg_addr_masks): Likewise.
        (rs6000_preferred_simd_mode): Likewise.
        (output_vec_const_move): Likewise.
        (rs6000_expand_vector_extract): Likewise.
        (rs6000_split_vec_extract_var): Likewise.
        (reg_offset_addressing_ok_p): Likewise.
        (rs6000_legitimate_offset_address_p): Likewise.
        (rs6000_legitimize_address): Likewise.
        (rs6000_emit_set_const): Likewise.
        (rs6000_const_vec): Likewise.
        (rs6000_emit_move): Likewise.
        (rs6000_darwin64_record_arg_recurse): Likewise.
        (swap_selector_for_mode): Likewise.
        (paired_init_builtins): Likewise.
        (altivec_init_builtins): Likewise.
        (rs6000_expand_float128_convert): Likewise.
        (emit_load_locked): Likewise.
        (emit_store_conditional): Likewise.
        (rs6000_output_function_epilogue): Likewise.
        (rs6000_handle_altivec_attribute): Likewise.
        (rs6000_function_value): Likewise.
        (emit_fusion_gpr_load): Likewise.
        (emit_fusion_p9_load): Likewise.
        (emit_fusion_p9_store): Likewise.
        * config/rx/rx.c (rx_gen_move_template): Likewise.
        (flags_from_mode): Likewise.
        * config/s390/predicates.md (s390_alc_comparison): Likewise.
        (s390_slb_comparison): Likewise.
        * config/s390/s390.c (s390_handle_vectorbool_attribute): Likewise.
        (s390_vector_mode_supported_p): Likewise.
        (s390_cc_modes_compatible): Likewise.
        (s390_match_ccmode_set): Likewise.
        (s390_canonicalize_comparison): Likewise.
        (s390_emit_compare_and_swap): Likewise.
        (s390_branch_condition_mask): Likewise.
        (s390_rtx_costs): Likewise.
        (s390_secondary_reload): Likewise.
        (__SECONDARY_RELOAD_CASE): Likewise.
        (s390_expand_cs): Likewise.
        (s390_preferred_simd_mode): Likewise.
        * config/s390/vx-builtins.md (vec_packsu_u<mode>): Likewise.
        * config/sh/sh.c (sh_print_operand): Likewise.
        (dump_table): Likewise.
        (sh_secondary_reload): Likewise.
        * config/sh/sh.h (ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
        * config/sh/sh.md (casesi_worker_1): Likewise.
        (casesi_worker_2): Likewise.
        * config/sparc/predicates.md (icc_comparison_operator): Likewise.
        (fcc_comparison_operator): Likewise.
        * config/sparc/sparc.c (sparc_expand_move): Likewise.
        (emit_soft_tfmode_cvt): Likewise.
        (sparc_preferred_simd_mode): Likewise.
        (output_cbranch): Likewise.
        (sparc_print_operand): Likewise.
        (sparc_expand_vec_perm_bmask): Likewise.
        (vector_init_bshuffle): Likewise.
        * config/spu/spu.c (spu_scalar_mode_supported_p): Likewise.
        (spu_vector_mode_supported_p): Likewise.
        (spu_expand_insv): Likewise.
        (spu_emit_branch_or_set): Likewise.
        (spu_handle_vector_attribute): Likewise.
        (spu_builtin_splats): Likewise.
        (spu_builtin_extract): Likewise.
        (spu_builtin_promote): Likewise.
        (spu_expand_sign_extend): Likewise.
        * config/tilegx/tilegx.c (tilegx_scalar_mode_supported_p): Likewise.
        (tilegx_simd_int): Likewise.
        * config/tilepro/tilepro.c (tilepro_scalar_mode_supported_p): Likewise.
        (tilepro_simd_int): Likewise.
        * config/v850/v850.c (const_double_split): Likewise.
        (v850_print_operand): Likewise.
        (ep_memory_offset): Likewise.
        * config/vax/vax.c (vax_rtx_costs): Likewise.
        (vax_output_int_move): Likewise.
        (vax_output_int_add): Likewise.
        (vax_output_int_subtract): Likewise.
        * config/visium/predicates.md (visium_branch_operator): Likewise.
        * config/visium/visium.c (rtx_ok_for_offset_p): Likewise.
        (visium_print_operand_address): Likewise.
        * config/visium/visium.h (ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
        * config/xtensa/xtensa.c (xtensa_mem_offset): Likewise.
        (xtensa_expand_conditional_branch): Likewise.
        (xtensa_copy_incoming_a7): Likewise.
        (xtensa_output_literal): Likewise.
        * dfp.c (decimal_real_maxval): Likewise.
        * targhooks.c (default_libgcc_floating_mode_supported_p): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * genmodes.c (mode_size_inline): Add an E_ prefix to mode names.
        (mode_nunits_inline): Likewise.
        (mode_inner_inline): Likewise.
        (mode_unit_size_inline): Likewise.
        (mode_unit_precision_inline): Likewise.
        (emit_insn_modes_h): Likewise.  Also emit a #define of the
        unprefixed name.
        (emit_mode_wider): Add an E_ prefix to mode names.
        (emit_mode_complex): Likewise.
        (emit_mode_inner): Likewise.
        (emit_mode_adjustments): Likewise.
        (emit_mode_int_n): Likewise.
        * config/aarch64/aarch64-builtins.c (v8qi_UP, v4hi_UP, v4hf_UP)
        (v2si_UP, v2sf_UP, v1df_UP, di_UP, df_UP, v16qi_UP, v8hi_UP, v8hf_UP)
        (v4si_UP, v4sf_UP, v2di_UP, v2df_UP, ti_UP, oi_UP, ci_UP, xi_UP)
        (si_UP, sf_UP, hi_UP, hf_UP, qi_UP): Likewise.
        (CRC32_BUILTIN, ENTRY): Likewise.
        * config/aarch64/aarch64.c (aarch64_push_regs): Likewise.
        (aarch64_pop_regs): Likewise.
        (aarch64_process_components): Likewise.
        * config/alpha/alpha.c (alpha_emit_conditional_move): Likewise.
        * config/arm/arm-builtins.c (v8qi_UP, v4hi_UP, v4hf_UP, v2si_UP)
        (v2sf_UP, di_UP, v16qi_UP, v8hi_UP, v8hf_UP, v4si_UP, v4sf_UP)
        (v2di_UP, ti_UP, ei_UP, oi_UP, hf_UP, si_UP, void_UP): Likewise.
        * config/arm/arm.c (arm_init_libfuncs): Likewise.
        * config/i386/i386-builtin-types.awk (ix86_builtin_type_vect_mode):
        Likewise.
        * config/i386/i386-builtin.def (pcmpestr): Likewise.
        (pcmpistr): Likewise.
        * config/microblaze/microblaze.c (double_memory_operand): Likewise.
        * config/mmix/mmix.c (mmix_output_condition): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_init_hard_regno_mode_ok):
        Likewise.
        * config/rl78/rl78.c (mduc_regs): Likewise.
        * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Likewise.
        (htm_expand_builtin): Likewise.
        * config/sh/sh.h (REGISTER_NATURAL_MODE): Likewise.
        * config/sparc/sparc.c (emit_save_or_restore_regs): Likewise.
        * config/xtensa/xtensa.c (print_operand): Likewise.
        * expmed.h (NUM_MODE_PARTIAL_INT): Likewise.
        (NUM_MODE_VECTOR_INT): Likewise.
        * genoutput.c (null_operand): Likewise.
        (output_operand_data): Likewise.
        * genrecog.c (print_parameter_value): Likewise.
        * lra.c (debug_operand_data): Likewise.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>

        * dwarf2out.c (scompare_loc_descriptor_wide)
        (scompare_loc_descriptor_narrow): New functions, split out from...
        (scompare_loc_descriptor): ...here.
        * expmed.c (emit_store_flag_int): New function, split out from...
        (emit_store_flag): ...here.

2017-08-30  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (dwarf2out_finish): Remove setting AT_pubnames.
        (dwarf2out_early_finish): Move setting of AT_pubnames from
        early debug output to early finish.

2017-08-30  Jozef Lawrynowicz  <jozef.l@somniumtech.com>

        * gcc/config/msp430/msp430.h: Pass -mcode/data-region to the linker
        and -mdata-region to the assembler.

2017-08-30  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (add_dwarf_attr): Check we don't add duplicate
        attributes.
        (gen_subprogram_die): Add DW_AT_object_pointer only early.
        (dwarf2out_early_global_decl): Only generate a DIE for the
        abstract origin if it doesn't already exist or is a declaration DIE.
        (resolve_addr): Do not add the linkage name twice when
        generating a stub DIE for the DW_TAG_GNU_call_site target.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        Use machine_mode rather than int for arg1_mode.

2017-08-29  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/82015
        * config/rs6000/rs6000.c (rs6000_expand_binop_builtin): Insure
        that the second argument of the built-in functions to unpack
        128-bit scalar types to 64-bit values is 0 or 1.  Change to use a
        switch statement instead a lot of if statements.
        * config/rs6000/rs6000.md (unpack<mode>, FMOVE128_VSX iterator):
        Allow 64-bit values to be in Altivec registers as well as
        traditional floating point registers.
        (pack<mode>, FMOVE128_VSX iterator): Likewise.

2017-08-29  Alexander Monakov  <amonakov@ispras.ru>

        * ira-costs.c (record_address_regs): Handle both operands of PLUS for
        MAX_REGS_PER_ADDRESS == 1.

2017-08-29  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.opt (flag_fentry): Do not init to -1.
        * config/i386/i386.c (ix86_option_override_internal): Simplify
        setting of opts->x_flag_entry.

2017-08-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
            Jakub Jelinek  <jakub@redhat.com>
            Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81503
        * gimple-ssa-strength-reduction.c (replace_mult_candidate): Ensure
        folded constant fits in the target type; reorder tests for clarity.

2017-08-29  Martin Liska  <mliska@suse.cz>

        * passes.def: Include pass_lower_switch.
        * stmt.c (dump_case_nodes): Remove and move to
        tree-switch-conversion.
        (case_values_threshold): Likewise.
        (expand_switch_as_decision_tree_p): Likewise.
        (emit_case_decision_tree): Likewise.
        (expand_case): Likewise.
        (balance_case_nodes): Likewise.
        (node_has_low_bound): Likewise.
        (node_has_high_bound): Likewise.
        (node_is_bounded): Likewise.
        (emit_case_nodes): Likewise.
        (struct simple_case_node): New struct.
        (add_case_node): Remove.
        (emit_case_dispatch_table): Use vector instead of case_list.
        (reset_out_edges_aux): Remove.
        (compute_cases_per_edge): Likewise.
        (expand_case): Build list of simple_case_node.
        (expand_sjlj_dispatch_table): Use it.
        * tree-switch-conversion.c (struct case_node): Moved from
        stmt.c and adjusted.
        (emit_case_nodes): Likewise.
        (node_has_low_bound): Likewise.
        (node_has_high_bound): Likewise.
        (node_is_bounded): Likewise.
        (case_values_threshold): Likewise.
        (reset_out_edges_aux): Likewise.
        (compute_cases_per_edge): Likewise.
        (add_case_node): Likewise.
        (dump_case_nodes): Likewise.
        (balance_case_nodes): Likewise.
        (expand_switch_as_decision_tree_p): Likewise.
        (emit_jump): Likewise.
        (emit_case_decision_tree): Likewise.
        (try_switch_expansion): Likewise.
        (do_jump_if_equal): Likewise.
        (emit_cmp_and_jump_insns): Likewise.
        (fix_phi_operands_for_edge): New function.
        (record_phi_operand_mapping): Likewise.
        (class pass_lower_switch): New pass.
        (pass_lower_switch::execute): New function.
        (make_pass_lower_switch): Likewise.
        (conditional_probability):
        * timevar.def: Add TV_TREE_SWITCH_LOWERING.
        * tree-pass.h: Add make_pass_lower_switch.

2017-08-29  Jozef Lawrynowicz  <jozef.l@somniumtech.com>

        PR target/80993
        * gcc/config/msp430/msp430.c (msp430_attr): Mark interrupt
        handlers as used.

2017-08-29  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (add_dwarf_attr): When checking is enabled verify
        we do not add a DW_AT_inline attribute twice.
        (gen_subprogram_die): Remove code setting DW_AT_inline on
        DECL_ABSTRACT_P nodes.

2017-08-29  Richard Sandiford  <richard.sandiford@linaro.org>

        * gimplify.c (gimplify_call_expr): Copy the nothrow flag to
        calls to internal functions.
        (gimplify_modify_expr): Likewise.
        * tree-call-cdce.c (use_internal_fn): Likewise.
        * tree-ssa-math-opts.c (pass_cse_reciprocals::execute): Likewise.
        (convert_to_divmod): Set the nothrow flag.
        * tree-if-conv.c (predicate_mem_writes):  Likewise.
        * tree-vect-stmts.c (vectorizable_mask_load_store): Likewise.
        (vectorizable_call): Likewise.
        (vectorizable_store): Likewise.
        (vectorizable_load): Likewise.
        * tree-vect-patterns.c (vect_recog_pow_pattern): Likewise.
        (vect_recog_mask_conversion_pattern): Likewise.

2017-08-29  Martin Liska  <mliska@suse.cz>

        PR other/39851
        * gcc.c (driver_handle_option): Add new argument.
        * opts-common.c (handle_option): Pass
        target_option_override_hook.
        * opts-global.c (lang_handle_option): Add new option.
        (set_default_handlers):  Add new argument.
        (decode_options): Likewise.
        * opts.c (target_handle_option): Likewise.
        (common_handle_option): Call target_option_override_hook.
        * opts.h (struct cl_option_handler_func): Add hook for
        target option override.
        (struct cl_option_handlers): Likewise.
        (set_default_handlers): Add new argument.
        (decode_options): Likewise.
        (common_handle_option): Likewise.
        (target_handle_option): Likewise.
        * toplev.c (toplev::main): Pass targetm.target_option.override
        hook.

2017-08-29  Richard Biener  <rguenther@suse.de>
        Dominik Infuehr <dominik.infuehr@theobroma-systems.com>

        * tree-vect-slp.c (vect_bb_slp_scalar_cost): Properly confine
        life to the active subtree.

2017-08-28  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (edge_info::record_simple_equiv): Call
        derive_equivalences.
        (derive_equivalences_from_bit_ior, record_temporary_equivalences):
        Code moved into....
        (edge_info::derive_equivalences): New private member function

        * tree-ssa-dom.c (class edge_info): Changed from a struct
        to a class.  Add ctor/dtor, methods and data members.
        (edge_info::edge_info): Renamed from allocate_edge_info.
        Initialize additional members.
        (edge_info::~edge_info): New.
        (free_dom_edge_info): Delete the edge info.
        (record_edge_info): Use new class & associated member functions.
        Tighten forms for testing for edge equivalences.
        (record_temporary_equivalences): Iterate over the simple
        equivalences rather than assuming there's only one per edge.
        (cprop_into_successor_phis): Iterate over the simple
        equivalences rather than assuming there's only one per edge.
        (optimize_stmt): Use operand_equal_p rather than pointer
        equality for mini-DSE code.

2017-08-28  Nathan Sidwell  <nathan@acm.org>

        * gcc.c (execute): Fold SIGPIPE handling into switch
        statement.  Adjust internal error message.

2017-08-28  Richard Biener  <rguenther@suse.de>

        PR debug/81993
        * dwarf2out.c (gen_remaining_tmpl_value_param_die_attributes):
        Do nothing for removed DIEs.

2017-08-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81977
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Fix look through
        memcpy.

2017-08-28  Alexander Monakov  <amonakov@ispras.ru>

        PR target/80640
        * doc/md.texi (mem_thread_fence): Remove mention of mode.  Rewrite.
        * optabs.c (expand_mem_thread_fence): Emit a compiler barrier when
        using targetm.gen_mem_thread_fence.

2017-08-27  Uros Bizjak  <ubizjak@gmail.com>

        PR target/81995
        * config/i386/i386.md (*<btsc><mode>): Change operand 2
        predicate to register_operand.  Reorder operands.
        (*btr<mode>): Ditto.
        (*<btsc><mode>_mask): Change operand 3 predicate to register_operand.
        (*btr<mode>_mask): Ditto.

2017-08-25  Steven Munroe  <munroesj@gcc.gnu.org>

        * config.gcc (powerpc*-*-*): Add xmmintrin.h and mm_malloc.h.
        * config/rs6000/xmmintrin.h: New file.
        * config/rs6000/x86intrin.h [__ALTIVEC__]: Include xmmintrin.h.

2017-08-25  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/81504
        * config/rs6000/rs6000-p8swap.c (find_alignment_op): Add reference
        parameter and_insn and return it.
        (recombine_lvx_pattern): Insert a copy to ensure availability of
        the base register of the copied masking operation at the point of
        the instruction replacement.
        (recombine_stvx_pattern): Likewise.

2017-08-25  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.opt (-mpower9-dform-scalar): Delete
        undocumented switches.
        (-mpower9-dform-vector): Likewise.
        (-mpower9-dform): Likewise.
        * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Update
        comments to delete references to -mpower9-dform* switches.
        * config/rs6000/predicates.md (vsx_quad_dform_memory_operand):
        Delete reference to -mpower9-dform* switches, test for
        -mpower9-vector instead.
        * config/rs6000/rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Likewise.
        (OTHER_P9_VECTOR_MASKS): Likewise.
        (POWERPC_MASKS): Likewise.
        * config/rs6000/rs6000.c (rs6000_setup_reg_addr_masks): Change
        tests against -mpower9-dform* to -mpower9-vector.  Delete code
        that checked for -mpower9-dform* consistancy with other options.
        Add test for -mpower9-misc to enable other power9 switches.
        (rs6000_init_hard_regno_mode_ok): Likewise.
        (rs6000_option_override_internal): Likewise.
        (rs6000_emit_prologue): Likewise.
        (rs6000_emit_epilogue): Likewise.
        (rs6000_opt_masks): Delete -mpower9-dform-{scalar,vector}.
        (rs6000_disable_incompatiable_switches): Delete -mpower9-dform.
        (emit_fusion_p9_load): Change tests for -mpower9-dform-scalar
        -mpower9-vector.
        (emit_fusion_p9_store): Likewise.
        * config/rs6000/rs6000.h (TARGET_P9_DFORM_SCALAR): Delete
        resetting these macros if the assembler does not support ISA 3.0
        instructions.
        (TARGET_P9_DFORM_VECTOR): Likewise.
        * config/rs6000/rs6000.md (peepholes to optimize altivec memory):
        Change to use -mpower9-vector instead of -mpower9-dform-scalar.

2017-08-25  Alan Modra  <amodra@gmail.com>

        PR rtl-optimization/81747
        * cse.c (cse_extended_basic_block): Don't attempt to record
        equivalences for degenerate conditional branches that branch
        to their fall-through.

2017-08-24  Martin Sebor  <msebor@redhat.com>

        PR middle-end/81908
        * gimple-fold.c (size_must_be_zero_p): New function.
        (gimple_fold_builtin_memory_op): Call it.

2017-08-24  Steven Munroe  <munroesj@gcc.gnu.org>

        * config/rs6000/mm_malloc.h: New file.

2017-08-24  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/81913
        * tree-ssa-loop-niter.c (number_of_iterations_cond): Skip niter
        analysis when either IVs in condition can wrap.

2017-08-24  Uros Bizjak  <ubizjak@gmail.com>

        * dwarf2out.c (MAX_ARTIFICIAL_LABEL_BYTES): Increase to 40.
        * dwarf2cfi.c (MAX_ARTIFICIAL_LABEL_BYTES): Remove.

2017-08-24  Richard Biener  <rguenther@suse.de>

        PR target/81921
        * targhooks.c (default_target_can_inline_p): Properly
        use target_option_default_node when no DECL_FUNCTION_SPECIFIC_TARGET
        is present and always compare.
        * config/i386/i386.c (ix86_valid_target_attribute_tree): Do not
        infer -mfpmath=sse from TARGET_SSE_P.
        (ix86_can_inline_p): Properly use target_option_default_node when
        no DECL_FUNCTION_SPECIFIC_TARGET is present and always compare.

2017-08-24  Richard Biener  <rguenther@suse.de>

        PR debug/81936
        * dwarf2out.c (output_die): Handle flag_generate_offload like
        flag_generate_lto.
        (output_comp_unit): Likewise.
        (gen_array_type_die): Likewise.
        (dwarf2out_early_finish): Likewise.
        (note_variable_value_in_expr): Likewise.
        (dwarf2out_finish): Likewise.  Adjust assert.
        * cgraphunit.c (symbol_table::compile): Move setting of
        flag_generate_offload earlier ...
        (symbol_table::finalize_compilation_unit): ... here, before
        early debug finalization.

2017-08-24  Richard Biener  <rguenther@suse.de>

        * config/i386/i386.c: Include symbol-summary.h, ipa-prop.h
        and ipa-fnsummary.h.
        (ix86_can_inline_p): When ix86_fpmath flags do not match
        check whether the callee uses FP math at all.

2017-08-24  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/81931
        * tree-ssanames.c (get_nonzero_bits): Use element_precision
        instead of TYPE_PRECISION.

2017-08-24  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (make_extraction): Use subreg_offset_from_lsb.

2017-08-23  Daniel Santos  <daniel.santos@pobox.com>

        * config/i386/i386.h (ix86_frame::stack_realign_allocate_offset):
        Remove field.
        (ix86_frame::stack_realign_allocate): New field.
        (struct machine_frame_state): Modify comments.
        (machine_frame_state::sp_realigned_fp_end): New field.
        * config/i386/i386.c (ix86_compute_frame_layout): Rework stack frame
        layout calculation.
        (sp_valid_at): Add assertion to assure no attempt to access invalid
        offset of a realigned stack.
        (fp_valid_at): Likewise.
        (choose_baseaddr): Modify comments.
        (ix86_emit_outlined_ms2sysv_save): Adjust to changes in
        ix86_expand_prologue.
        (ix86_expand_prologue): Modify stack realignment and allocation.
        (ix86_expand_epilogue): Modify comments.
        * doc/sourcebuild.texi: Add documentation for target selectors avx2,
        avx2_runtime, avx512f, and avx512f_runtime.

2017-08-23  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.opt: Remove unneeded Init(0) initializations.
        (mstackrealign): Do not init to -1.
        * config/i386/i386.c (ix86_option_override_internal):
        Check opts_set, not opts when setting default value of
        opts->x_ix86_force_align_arg_pointer.

2017-08-23  Richard Biener  <rguenther@suse.de>

        * function.c (fndecl_name): Use verbosity 1 (no arguments) for
        lang_hooks.decl_printable_name.
        * print-rtl-function.c (print_rtx_function): Likewise.
        * tree-pretty-print.c (dump_function_header): Likewise.

2017-08-23  Richard Biener  <rguenther@suse.de>

        PR lto/81940
        * dwarf2out.c (dwarf2out_abstract_function): Handle LTO with
        -g0 at compile-time.

2017-08-23  Tamar Christina  <tamar.christina@arm.com>

        PR middle-end/19706
        * doc/sourcebuild.texi (Other hardware attributes):
        Document xorsign.

2017-08-23  Tamar Christina  <tamar.christina@arm.com>

        PR middle-end/19706
        * tree-ssa-math-opts.c (convert_expand_mult_copysign):
        Fix single-use check.

2017-08-23  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * gcc.c (execute): Only test for SIGKILL and SIGQUIT if available.

2017-08-22  Daniel Santos  <daniel.santos@pobox.com>

        * doc/install.texi: Modify to add more details on running selected
        tests.

2017-08-22  Daniel Santos  <daniel.santos@pobox.com>

        * config/i386/i386.c (ix86_option_override_internal): Error when -mx32
        is combined with -mabi=ms.
        (ix86_function_type_abi): Limit errors for mixing -mx32 with attribute
        ms_abi.

2017-08-22  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/81488
        * gimple-ssa-strength-reduction (struct slsr_cand_d): Add visited
        and cached_basis fields.
        (MAX_SPREAD): New constant.
        (alloc_cand_and_find_basis): Initialize new fields.
        (clear_visited): New function.
        (create_phi_basis_1): Rename from create_phi_basis, set visited
        and cached_basis fields.
        (create_phi_basis): New wrapper function.
        (phi_add_costs_1): Rename from phi_add_costs, add spread
        parameter, set visited field, short-circuit when limits reached.
        (phi_add_costs): New wrapper function.
        (record_phi_increments_1): Rename from record_phi_increments, set
        visited field.
        (record_phi_increments): New wrapper function.
        (phi_incr_cost_1): Rename from phi_incr_cost, set visited field.
        (phi_incr_cost): New wrapper function.
        (all_phi_incrs_profitable_1): Rename from
        all_phi_incrs_profitable, set visited field.
        (all_phi_incrs_profitable): New wrapper function.

2017-08-22  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * rtl.h (paradoxical_subreg_p): Define inline, and add a version
        that takes the outer and inner modes.
        * doc/rtl.texi: Use paradoxical_subreg_p instead of a GET_MODE_SIZE
        comparison as the canonical test for a paradoxical subreg.
        * combine.c (simplify_set): Use paradoxical_subreg_p.
        (make_extraction): Likewise.
        (force_to_mode): Likewise.
        (rtx_equal_for_field_assignment_p): Likewise.
        (gen_lowpart_for_combine): Likewise.
        (simplify_comparison): Likewise.
        * cse.c (equiv_constant): Likewise.
        * expmed.c (store_bit_field_1): Likewise.
        * final.c (alter_subreg): Likewise.
        * fwprop.c (propagate_rtx): Likewise.
        (forward_propagate_subreg): Likewise.
        * ira-conflicts.c (ira_build_conflicts): Likewise.
        * lower-subreg.c (simplify_gen_subreg_concatn): Likewise.
        * lra-constraints.c (curr_insn_transform): Likewise.
        (split_reg): Likewise.
        * lra-eliminations.c (move_plus_up): Likewise.
        (lra_eliminate_regs_1): Likewise.
        * recog.c (general_operand): Likewise.
        * ree.c (combine_reaching_defs): Likewise.
        * reload.c (push_reload): Likewise.
        (find_reloads): Likewise.
        * reload1.c (elimination_effects): Likewise.
        (compute_reload_subreg_offset): Likewise.
        (choose_reload_regs): Likewise.
        * rtlanal.c (subreg_lsb_1): Likewise.
        * simplify-rtx.c (simplify_unary_operation_1): Likewise.
        (simplify_subreg): Likewise.
        * var-tracking.c (track_loc_p): Likewise.
        * emit-rtl.c (byte_lowpart_offset): Likewise.
        (paradoxical_subreg_p): Delete out-of-line definition.

2017-08-22  Jeff Law  <law@redhat.com>

        PR tree-optimization/81741
        PR tree-optimization/71947
        * tree-ssa-dom.c: Include tree-inline.h.
        (record_temporary_equivalences): Only record SSA_NAME = SSA_NAME
        equivalences if one is more expensive to compute than the other.
        * tree-ssa-scopedtables.h (class const_or_copies): Make
        record_const_or_copy_raw method private.
        (class avail_exprs_stack): New method simplify_binary_operation.
        * tree-ssa-scopedtables.c (avail_exprs_stack::lookup_avail_expr): Call
        avail_exprs_stack::simplify_binary_operation as needed.
        (avail_exprs_stack::simplify_binary_operation): New function.

2017-08-22  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * config.gcc (powerpc-*-rtems*): Add rs6000/linux64.opt.
        * config/rs6000/rtems.h (ASM_PREFERRED_EH_DATA_FORMAT): New define.
        (DOT_SYMBOLS): Likewise.
        (MINIMAL_TOC_SECTION_ASM_OP): Likewise.
        (RELOCATABLE_NEEDS_FIXUP): Likewise.
        (RS6000_ABI_NAME): Likewise.
        (TARGET_CMODEL): Likewise.
        (TOC_SECTION_ASM_OP): Likewise.
        (SET_CMODEL): New macro.
        (SUBSUBTARGET_OVERRIDE_OPTIONS): Evaluate cmodel options.

2017-08-22  Richard Biener  <rguenther@suse.de>

        * tree-inline.c (remap_type_1): Change asserts on TYPE_SIZE[_UNIT]
        to allow for free-lang-data replacements similar to verify_type_variant.

2017-08-22  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * config/aarch64/aarch64.md (casesi): Use DImode rather than
        VOIDmode for the LABEL_REF.

2017-08-22  Richard Biener  <rguenther@suse.de>

        * tree-cfg.c (gimple_split_edge): Avoid reallocating target PHI nodes.

2017-08-22  Richard Biener  <rguenther@suse.de>

        * common.opt (feliminate-dwarf2-dups): Ignore.
        * doc/invoke.texi (feliminate-dwarf2-dups): Remove documentation.
        * dwarf2out.c (push_new_compile_unit, pop_compile_unit,
        same_die_p_wrap, compute_section_prefix,
        is_symbol_die, assign_symbol_names, break_out_includes): Remove.
        (comdat_symbol_id, comdat_symbol_number): Likewise.
        (cu_hash_table_entry, cu_hash_table_entry_hasher, cu_hash_type):
        Likewise.
        (check_duplicate_cu, record_comdat_symbol_number): Likewise.
        (output_die): Mark unreachable path unreachable.
        (dwarf2out_start_source_file): Do not create DW_TAG_GNU_BINCL.
        (dwarf2out_end_source_file): Do not create DW_TAG_GNU_EINCL.
        (dwarf2out_init): Remove code handling flag_eliminate_dwarf2_dups.
        (dwarf2out_early_finish): Likewise.

2017-08-22  Aldy Hernandez  <aldyh@redhat.com>

        * wide-int.h (hwi_with_prec::hwi_with_prec): Sign extend.

2017-08-22  Georg-Johann Lay  <avr@gjlay.de>

        PR target/81910
        * config/avr/avr.c (avr_handle_addr_attribute): Early return if
        not VAR_P. Filter attribute warnings with OPT_Wattributes.
        (avr_attribute_table) <io, io_low, address>: Initialize
        .decl_required with true.

2017-08-21  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-cpus.def (-mvsx-scalar-float): Delete
        undocumented debugging options.
        (-mvsx-scalar-double): Likewise.
        (-mallow-df-permute): Likewise.
        (-mvectorize-builtins): Likewise.
        * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Likewise.
        (rs6000_builtin_vectorized_function): Likewise.
        (rs6000_builtin_md_vectorized_function): Likewise.
        (rs6000_opt_vars): Likewise.

2017-08-21  Uros Bizjak  <ubizjak@gmail.com>

        PR target/46091
        * config/i386/i386.md (*btsq_imm): Rename from *btsq.
        (*btrq_imm): Rename from *btrq.
        (*btcq_imm): Rename from *btcq.
        (btsc): New code attribute.
        (*<btsc><mode>): New insn pattern.
        (*btr<mode>): Ditto.
        (*<btsc><mode>_mask): New insn_and_split pattern.
        (*btr<mode>_mask): Ditto.

2017-08-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * function.c (pad_below): Simplify padding calculation.

2017-08-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * target.def (function_prologue): Remove frame size argument.
        (function_epilogue): Likewise.
        * doc/tm.texi: Regenerate.
        * final.c (final_start_function): Update call to function_prologue.
        (final_end_function): Update call to function_epilogue.
        (default_function_pro_epilogue): Remove frame size argument.
        * output.h (default_function_pro_epilogue): Likewise.
        * config/arm/arm.c (arm_output_function_epilogue): Likewise.
        (arm_output_function_prologue): Likewise.
        * config/frv/frv.c (frv_function_prologue): Likewise.
        (frv_function_epilogue): Likewise.
        * config/i386/i386.c (ix86_output_function_epilogue): Likewise.
        * config/ia64/ia64.c (ia64_output_function_prologue): Likewise.
        (ia64_output_function_epilogue): Likewise.
        * config/m32r/m32r.c (m32r_output_function_prologue): Likewise.
        (m32r_output_function_epilogue): Likewise.
        * config/microblaze/microblaze.c (microblaze_function_prologue)
        (microblaze_function_epilogue): Likewise.
        * config/mips/mips.c (mips_output_function_prologue): Likewise.
        (mips_output_function_epilogue): Likewise.
        * config/mmix/mmix.c (mmix_target_asm_function_prologue): Likewise.
        (mmix_target_asm_function_epilogue): Likewise.
        * config/msp430/msp430.c (msp430_start_function): Likewise.
        * config/nds32/nds32.c (nds32_asm_function_prologue): Likewise.
        (nds32_asm_function_epilogue): Likewise.
        * config/nios2/nios2.c (nios2_asm_function_prologue): Likewise.
        * config/pa/pa.c (pa_output_function_prologue): Likewise.
        (pa_output_function_epilogue): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_output_function_prologue)
        (rs6000_output_function_epilogue): Likewise.
        * config/rl78/rl78.c (rl78_start_function): Likewise.
        * config/rs6000/rs6000.c (rs6000_output_function_prologue): Likewise.
        (rs6000_output_function_epilogue): Likewise.
        * config/rx/rx.c (rx_output_function_prologue): Likewise.
        * config/sh/sh.c (sh_output_function_epilogue): Likewise.
        * config/sparc/sparc.c (sparc_asm_function_prologue): Likewise.
        (sparc_asm_function_epilogue): Likewise.

2017-08-21  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree.h (type_has_mode_precision_p): New function.
        * convert.c (convert_to_integer_1): Use it.
        * expr.c (expand_expr_real_2): Likewise.
        (expand_expr_real_1): Likewise.
        * fold-const.c (fold_single_bit_test_into_sign_test): Likewise.
        * match.pd: Likewise.
        * tree-ssa-forwprop.c (simplify_rotate): Likewise.
        * tree-ssa-math-opts.c (convert_mult_to_fma): Likewise.
        * tree-tailcall.c (process_assignment): Likewise.
        * tree-vect-loop.c (vectorizable_reduction): Likewise.
        * tree-vect-patterns.c (vect_recog_vector_vector_shift_pattern)
        (vect_recog_mult_pattern, vect_recog_divmod_pattern): Likewise.
        * tree-vect-stmts.c (vectorizable_conversion): Likewise.
        (vectorizable_assignment): Likewise.
        (vectorizable_shift): Likewise.
        (vectorizable_operation): Likewise.
        * tree-vrp.c (register_edge_assert_for_2): Likewise.

2017-08-21  Wilco Dijkstra  <wdijkstr@arm.com>

        * match.pd: Add pow (C, x) simplification.

2017-08-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81900
        * tree-ssa-pre.c (compute_antic_aux): Properly compute changed
        for blocks with abnormal predecessors.
        (compute_antic): Do not set visited flag prematurely.

2017-08-21  Georg-Johann Lay  <avr@gjlay.de>

        PR target/79883
        * config/avr/avr.c (avr_set_current_function): Typo in diagnostic.

2017-08-21  Richard Sandiford  <richard.sandiford@linaro.org>

        * stor-layout.h (vector_type_mode): Move to...
        * tree.h (vector_type_mode): ...here.
        * stor-layout.c (vector_type_mode): Move to...
        * tree.c (vector_type_mode): ...here.  Include rtl.h and regs.h.

2017-08-21  Richard Biener  <rguenther@suse.de>

        * debug.h (struct gcc_debug_hooks): Add die_ref_for_decl and
        register_external_die hooks.
        (debug_false_tree_charstarstar_uhwistar): Declare.
        (debug_nothing_tree_charstar_uhwi): Likewise.
        * debug.c (do_nothing_debug_hooks): Adjust.
        (debug_false_tree_charstarstar_uhwistar): New do nothing.
        (debug_nothing_tree_charstar_uhwi): Likewise.
        * dbxout.c (dbx_debug_hooks): Adjust.
        (xcoff_debug_hooks): Likewise.
        * sdbout.c (sdb_debug_hooks): Likewise.
        * vmsdbgout.c (vmsdbg_debug_hooks): Likewise.
        * dwarf2out.c (macinfo_label_base): New global.
        (dwarf2out_register_external_die): New function for the
        register_external_die hook.
        (dwarf2out_die_ref_for_decl): Likewise for die_ref_for_decl.
        (dwarf2_debug_hooks): Use them.
        (dwarf2_lineno_debug_hooks): Adjust.
        (struct die_struct): Add with_offset flag.
        (DEBUG_LTO_DWO_INFO_SECTION, DEBUG_LTO_INFO_SECTION,
        DEBUG_LTO_DWO_ABBREV_SECTION, DEBUG_LTO_ABBREV_SECTION,
        DEBUG_LTO_DWO_MACINFO_SECTION, DEBUG_LTO_MACINFO_SECTION,
        DEBUG_LTO_DWO_MACRO_SECTION, DEBUG_LTO_MACRO_SECTION,
        DEBUG_LTO_LINE_SECTION, DEBUG_LTO_DWO_STR_OFFSETS_SECTION,
        DEBUG_LTO_STR_DWO_SECTION, DEBUG_STR_LTO_SECTION): New macros
        defining section names for the early LTO debug variants.
        (reset_indirect_string): New helper.
        (add_AT_external_die_ref): Helper for dwarf2out_register_external_die.
        (print_dw_val): Add support for offsetted symbol references.
        (get_ultimate_context): Split out from is_cxx.
        (is_cxx): Use get_ultimate_context.
        (is_fortran): Add decl overload.
        (compute_comp_unit_symbol): Split out worker from
        compute_section_prefix.
        (compute_section_prefix): Call compute_comp_unit_symbol and
        set comdat_type_p here.
        (output_die): Skip DIE symbol output for the LTO added one.
        Handle DIE symbol references with offset.
        (output_comp_unit): Guard section name mangling properly.
        For LTO debug sections emit a symbol at the section beginning
        which we use to refer to its DIEs.
        (add_abstract_origin_attribute): For DIEs registered via
        dwarf2out_register_external_die directly refer to the early
        DIE rather than indirectly through the shadow one we created.
        Remove obsolete call to dwarf2out_abstract_function for
        non-function/block origins.
        (gen_array_type_die): When generating early LTO debug do
        not emit DW_AT_string_length.
        (gen_formal_parameter_die): Do not re-create DIEs for PARM_DECLs
        late when in LTO.  As suggested place a gcc_unreachable for
        the DECL_ABSTRACT_P case.
        (gen_subprogram_die): Avoid another specification DIE
        for early built declarations/definitions for the late LTO case.
        (gen_variable_die): Add type references for late duplicated VLA dies
        when in late LTO.
        (gen_inlined_subroutine_die): Do not call dwarf2out_abstract_function,
        we have the abstract instance already.
        (process_scope_var): Adjust decl DIE contexts in LTO which
        first puts them in limbo.
        (gen_decl_die): Do not generate type DIEs late apart from
        types for VLAs or for decls we do not yet have a DIE.  Do not
        call dwarf2out_abstract_function late.
        (dwarf2out_early_global_decl): Make sure to create DIEs
        for abstract instances of a decl first.
        (dwarf2out_late_global_decl): Adjust comment.
        (output_macinfo_op): With multiple macro sections use
        macinfo_label_base to distinguish labels.
        (output_macinfo): Likewise.  Update macinfo_label_base.
        Pass in the line info label.
        (note_variable_value_in_expr): When generating LTO resolve
        all variable values here by generating DIEs as needed.
        (init_sections_and_labels): Add early LTO debug flag parameter
        and generate different sections and names if set.  Add generation
        counter for the labels so we can have multiple of them.
        (reset_dies): Helper to allow DIEs to be output multiple times.
        (dwarf2out_finish): When outputting DIEs to the fat part of an
        LTO object first reset DIEs.
        (dwarf2out_early_finish): Output early DIEs when generating LTO.
        (modified_type_die): Check for decl_ultimate_origin being self
        before recursing.
        (gen_type_die_with_usage): Likewise.
        (gen_typedef_die): Allow decl_ultimate_origin being self.
        (set_decl_abstract_flags): Remove.
        (set_block_abstract_flags): Likewise.
        (dwarf2out_abstract_function): Treat the early generated DIEs
        as the abstract copy and only add DW_AT_inline and
        DW_AT_artificial here and call set_decl_origin_self.
        If the DIE has an abstract origin don't do anything.
        * tree.c (free_lang_data): Build a dummy TRANSLATION_UNIT_DECL
        if we have none yet (Go fails to build one, PR78628).
        (variably_modified_type_p): Prevent endless recursion for Ada
        cyclic pointer types.
        * lto-streamer-in.c: Include debug.h.
        (dref_queue): New global.
        (lto_read_tree_1): Stream in DIE references.
        (lto_input_tree): Register DIE references.
        (input_function): Stream DECL_DEBUG_ARGS.
        * lto-streamer-out.c: Include debug.h.
        (lto_write_tree_1): Output DIE references.
        (DFS::DFS_write_tree_body): Follow DECL_ABSTRACT_ORIGIN.
        Force a TRANSLATION_UNIT_DECL DECL_CONTEXT for file-scope decls.
        (output_function): Stream DECL_DEBUG_ARGS.
        * tree-streamer-in.c (lto_input_ts_decl_common_tree_pointers):
        Stream DECL_ABSTRACT_ORIGIN.
        * tree-streamer-out.c (write_ts_decl_common_tree_pointers): Likewise.
        (write_ts_decl_minimal_tree_pointers): Force a TRANSLATION_UNIT_DECL
        DECL_CONTEXT for file-scope decls.
        * lto-streamer.h (struct dref_entry): Declare.
        (dref_queue): Likewise.
        * cfgexpand.c (pass_expand::execute): Do not call the
        outlining_inline_function hook here.
        * lto-wrapper.c (debug_obj): New global.
        (tool_cleanup): Unlink it if required.
        (debug_objcopy): New function.
        (run_gcc): Handle early debug sections in the IL files by
        extracting them to separate files, partially linkin them and
        feeding the result back as result to the linker.
        * config/darwin.h (DEBUG_LTO_INFO_SECTION, DEBUG_LTO_ABBREV_SECTION,
        DEBUG_LTO_MACINFO_SECTION, DEBUG_LTO_LINE_SECTION,
        DEBUG_STR_LTO_SECTION, DEBUG_LTO_MACRO_SECTION): Put early debug
        sections into a separate segment.
        * config/darwin.c (darwin_asm_named_section): Handle __GNU_DWARF_LTO
        segments.
        (darwin_asm_dwarf_section): Likewise.
        (darwin_asm_output_dwarf_offset): Likewise.
        * config/i386/i386.c (make_resolver_func): Set DECL_IGNORED_P.

2017-08-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * read-md.h (md_reader::record_potential_iterator_use): Replace
        pointer argument with an rtx and an index.
        * read-rtl.c (iterator_group::apply_iterator): Likewise.
        (apply_mode_iterator): Likewise.
        (apply_code_iterator): Likewise.
        (apply_int_iterator): Likewise.
        (apply_subst_iterator): Likewise.
        (record_iterator_use): Likewise.
        (record_attribute_use): Likewise.
        (md_reader::record_potential_iterator_use): Likewise.  Update calls
        to record_iterator_use and apply_iterator.
        (iterator_use): Replace ptr with x and index.
        (attribute_use): Likewise.
        (apply_attribute_uses): Update calls to apply_iterator.
        (apply_iterators): Likewise.  Update initialization of iterator_use.
        (rtx_reader::read_rtx_code): Update calls to record_iterator_use
        and record_potential_iterator_use.
        (rtx_reader::read_rtx_operand): Likewise.

2017-08-21  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * varasm.c (const_rtx_hash_1): Don't hash in the mode of a
        CONST_WIDE_INT.

2017-08-21  Richard Biener  <rguenther@suse.de>

        PR middle-end/81884
        * tree-ssa-alias.c (stmt_kills_ref_p): Handle array accesses
        at struct end conservatively when comparing common bases.

2017-08-21  Richard Biener  <rguenther@suse.de>

        * tree-ssa-loop-im.c (struct lim_aux_data): Add ref index member.
        (mem_ref_in_stmt): Remove.
        (determine_max_movement): Use ref index to get at the reference.
        (invariantness_dom_walker::before_dom_children): Deal with
        lim data already initialized.
        (gather_mem_refs_stmt): Initialize lim data and record ref index.

2017-08-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (OPTION_MASK_ISA_ROUND): Remove.
        (TARGET_ISA_ROUND): Ditto.
        (TARGET_ROUND): Ditto.
        * config/i386/i386.c: Substitute TARGET_ROUND with TARGET_SSE4_1.
        * config/i386/i386.md: Ditto.
        * config/i386/sse.md: Ditto.
        * config/i386/i386-builtin.def: Substitute OPTION_MASK_ISA_ROUND
        with OPTION_MASK_ISA_SSE4_1.

2017-08-19  Uros Bizjak  <ubizjak@gmail.com>

        PR target/81894
        * doc/extend.texi (x86 Built-in Functions): Correct the name of
        __builtin_ia32_lzcnt_u16.

2017-08-18  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/80210
        * config/rs6000/rs6000.c (rs6000_activate_target_options): New function.
        (rs6000_set_current_function): Rewrite function to use it.

2017-08-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR c/53037
        * print-tree.c (print_node): Support DECL_WARN_IF_NOT_ALIGN
        and TYPE_WARN_IF_NOT_ALIGN.
        * stor-layout.c (do_type_align): Merge DECL_WARN_IF_NOT_ALIGN.
        (handle_warn_if_not_align): New.
        (place_union_field): Call handle_warn_if_not_align.
        (place_field): Call handle_warn_if_not_align.
        Copy TYPE_WARN_IF_NOT_ALIGN.
        (finish_builtin_struct): Copy TYPE_WARN_IF_NOT_ALIGN.
        (layout_type): Likewise.
        * tree-core.h (tree_type_common): Add warn_if_not_align.  Set
        spare to 18.
        (tree_decl_common): Add warn_if_not_align.
        * tree.c (build_range_type_1): Copy TYPE_WARN_IF_NOT_ALIGN.
        * tree.h (TYPE_WARN_IF_NOT_ALIGN): New.
        (SET_TYPE_WARN_IF_NOT_ALIGN): Likewise.
        (DECL_WARN_IF_NOT_ALIGN): Likewise.
        (SET_DECL_WARN_IF_NOT_ALIGN): Likewise.
        * doc/extend.texi: Document warn_if_not_aligned attribute.
        * doc/invoke.texi: Document -Wif-not-aligned and -Wpacked-not-aligned.

2017-08-17  Martin Liska  <mliska@suse.cz>

        PR bootstrap/81864
        * tree-loop-distribution.c (ddrs_table): Change type to pointer type.
        (get_data_dependence): Use it as pointer type.
        (distribute_loop): Likewise.

2017-08-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/altivec.md (UNSPEC_VMRGOW_DIRECT): New constant.
        (p8_vmrgew_v4sf_direct): Generalize to p8_vmrgew_<mode>_direct.
        (p8_vmrgow_<mode>_direct): New define_insn.
        * config/rs6000/rs6000.c (altivec_expand_vec_perm_const): Properly
        handle endianness for vmrgew and vmrgow permute patterns.

2017-08-17  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/altivec.md (VParity): Remove TARGET_VSX_TIMODE.
        * config/rs6000/rs6000-cpus.def: Remove comment.
        (ISA_2_7_MASKS_SERVER): Delete OPTION_MASK_VSX_TIMODE;
        (POWERPC_MASKS): Likewise.
        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Remove unneeded
        use of TARGET_VSX_TIMODE.
        (rs6000_setup_reg_addr_masks): Change TARGET_VSX_TIMODE to TARGET_VSX.
        (rs6000_init_hard_regno_mode_ok): Remove unneeded uses of
        TARGET_VSX_TIMODE.  Change use of TARGET_VSX_TIMODE to TARGET_VSX.
        (rs6000_option_override_internal): Remove dead code.
        (rs6000_legitimize_address): Change TARGET_VSX_TIMODE to TARGET_VSX.
        (rs6000_legitimize_reload_address): Likewise.
        (rs6000_legitimate_address_p): Likewise.
        (rs6000_opt_masks): Delete "vsx-timode".
        (rs6000_disable_incompatible_switches): Remove mention of -mvsx-timode
        from function comment.
        * config/rs6000/rs6000.h (MASK_VSX_TIMODE): Delete.
        * config/rs6000/rs6000.md (FMOVE128_GPR): Remove TARGET_VSX_TIMODE.
        (V16QI, V8HI, V4SI, V4SF, V2DI, V2DF, V1TI): Remove useless empty
        condition.
        * config/rs6000/rs6000.opt (mvsx-timode): Replace with stub.
        * config/rs6000/vector.md (VEC_IP): Remove TARGET_VSX_TIMODE.
        * config/rs6000/vsx.md (VSX_LE_128): Likewise.
        (VSX_TI): Likewise.
        (VSX_M): Likewise.
        (define_peephole2): Likewise.

2017-08-17  Martin Sebor  <msebor@redhat.com>

        PR c/81859
        * pretty-print.c (pp_format): Use strnlen in %.*s to avoid reading
        past the end of an array.
        (test_pp_format): Add test cases.

2017-08-17  Richard Sandiford  <richard.sandiford@linaro.org>

        * internal-fn.def (CLRSB, CLZ, CTZ, FFS, PARITY, POPCOUNT): Add
        missing ECF_NOTHROW flags.

2017-08-17  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/72804
        * config/rs6000/vsx.md (*vsx_le_permute_<mode>): Add support for
        operands residing in integer registers.
        (*vsx_le_perm_load_<mode>): Likewise.
        (*vsx_le_perm_store_<mode>): Likewise.
        (define_peephole2): Add peepholes to optimize the above.

2017-08-17  Marek Polacek  <polacek@redhat.com>

        PR middle-end/81814
        * fold-const.c (operand_equal_for_comparison_p): Remove code that used
        to mimic what shorten_compare did.  Change the return type to bool.
        (fold_cond_expr_with_comparison): Update call to
        operand_equal_for_comparison_p.
        (fold_ternary_loc): Likewise.

2017-08-17  Jackson Woodruff  <jackson.woodruff@arm.com>

        * aarch64-simd.md (mov<mode>): No longer force zero immediate into
        register.
        (*aarch64_simd_mov<mode>): Add new case for stp using zero immediate.

2017-08-17  Richard Biener  <rguenther@suse.de>

        * tree-ssa-structalias.c (solve_graph): When propagating
        to successors update the graphs succ edges and avoid duplicate work.

2017-08-17  Maxim Ostapenko  <m.ostapenko@samsung.com>

        PR target/81861
        * config/i386/i386.c (ix86_option_override_internal): Save target
        specific options after ix86_stack_protector_guard_reg was changed.

2017-08-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81827
        * tree-ssa-structalias.c (struct variable_info): Add is_reg_var flag.
        (new_var_info): Initialize it conservatively.
        (get_call_vi): Mark register vars.
        (new_scalar_tmp_constraint_exp): Likewise.
        (handle_rhs_call): Likewise.
        (handle_const_call): Likewise.
        (create_function_info_for): Likewise.
        (solve_constraints): Sort varinfos to separate register from
        non-register vars to pack points-to solution bitmaps during
        iteration.

2017-08-17  Marek Polacek  <polacek@redhat.com>

        * gimplify.c (gimplify_adjust_omp_clauses): Compare with 0 instead of 1.

2017-08-17  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (vrp_int_const_binop): Do not set *overflow_p
        to true when overflow is undefined and we saturated the result.

2017-08-17  Alan Modra  <amodra@gmail.com>

        PR target/80938
        * config/rs6000/rs6000.c (rs6000_savres_strategy): Revert 2017-08-09.
        Don't use store multiple if only one reg needs saving.
        (interesting_frame_related_regno): New function.
        (rs6000_frame_related): Don't emit frame info for regs that
        don't need saving.
        (rs6000_emit_epilogue): Likewise.

2017-08-16  Nathan Sidwell  <nathan@acm.org>

        * tree-core.h (tree_type_non_common): Rename binfo to lang_1.
        * tree.h (TYPE_BINFO): Use type_non_common.maxval.
        (TYPE_LANG_SLOT_1): Use type_non_common.lang_1, for any type.
        * tree.c (free_lang_data_in_type): Use else-if chain.  Always
        clear TYPE_LANG_1.  Remove obsolete member-function stripping.
        (find_decls_types_r): Comment about TYPE_MAX_VALUES_RAW.
        (verify_type): Adjust for TYPE_BINFO move.
        * lto-streamer-out.c (DFS::DFS_write_tree_body): No need to
        process TYPE_BINFO directly.
        (hash_tree): Likewise.
        * tree-streamer-in.c (lto_input_ts_type_non_common_tree_pointers):
        Likewise.
        * tree-streamer-out.c (write_ts_type_non_common_tree_pointers):
        Likewise.

2017-08-16  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c (colorizer::m_caret): Remove unused field.

2017-08-16  Uros Bizjak  <ubizjak@gmail.com>

        PR target/46091
        * config/i386/i386.md (*anddi_1_btr): Change predicates of
        operand 0 and operand 1 to nomimmediate_operand. Add "m" constraint.
        Add ix86_binary_operator_ok to insn constraint.
        (*iordi_1_bts): Ditto.
        (*xordi_1_btc): Ditto.
        (*btsq): Change predicate of operand 0 to nonimmediate_operand.
        Update corresponding peephole2 pattern.
        (*btrq): Ditto.
        (*btcq): Ditto.

2017-08-16  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/81832
        * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): Don't
        copy loop header which has IFN_LOOP_DIST_ALIAS call.

2017-08-16  Marek Polacek  <polacek@redhat.com>

        PR middle/81695
        * fold-const.c (fold_indirect_ref_1): Restore original behavior
        regarding size_zero_node.

2017-08-16  Martin Liska  <mliska@suse.cz>

        PR target/81753
        * config.gcc: Respect previously set extra_objs in case
        of darwin target.

2017-08-16  Richard Sandiford  <richard.sandiford@linaro.org>

        PR tree-optimization/81835
        * tree-vect-loop.c (vect_is_simple_reduction): Simply checks for
        the phi SSA_NAME.  Check that the condition in a COND_EXPR does
        not depend on the phi.

2017-08-16  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Delete
        dead code.

2017-08-16  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_reg_live_or_pic_offset_p): Merge..
        (save_reg_p): ..into this.  Update all callers.
        (first_reg_to_save): Simplify.

2017-08-16  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_savres_strategy): Don't restore
        fixed regs.

2017-08-15  Joseph Myers  <joseph@codesourcery.com>

        PR target/78460
        PR target/67712
        * config/sh/sh-mem.cc (sh_expand_cmpnstr): Only unroll for
        constant count if that count is less than 32.

2017-08-15  Nathan Sidwell  <nathan@acm.org>

        * gcc.c (execute): Emit friendlier message if inferior is killed
        by an external cause.

2017-08-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81790
        * tree-ssa-sccvn.c (vn_lookup_simplify_result): Handle both
        CONSTRUCTORs from simplifying and VN.

2017-08-14  Martin Sebor  <msebor@redhat.com>

        * builtin-attrs.def: Add comments.

2017-08-14  Martin Sebor  <msebor@redhat.com>

        PR c/81117
        * doc/extend.texi (attribute nonstring): Document new attribute.

2017-08-14  Martin Sebor  <msebor@redhat.com>

        PR c/81117
        * tree-diagnostic.c (default_tree_printer): Handle %G.
        * gimple-pretty-print.h (percent_G_format): Declare new function.
        * gimple-pretty-print.c (percent_G_format): Define.
        * tree-pretty-print.c (percent_K_format): Add argument.

2017-08-14  Martin Sebor  <msebor@redhat.com>

        PR translation/79998
        * gimple-ssa-sprintf.c (pass_sprintf_length::handle_gimple_call):
        Remove a stray space.

2017-08-14  Uros Bizjak  <ubizjak@gmail.com>

        PR target/46091
        * config/i386/i386.md (*anddi_1_btr): New insn_and_split pattern.
        (*iordi_1_bts): Ditto.
        (*xordi_1_btc): Ditto.

2017-08-14  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/79845
        * config/rs6000/linux64.h (INVALID_64BIT): Use quoted strings.
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        Likewise.
        * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Use
        quoted strings, and make more translator-friendly.
        (darwin_rs6000_override_options): Likewise.
        (rs6000_option_override_internal): Likewise.
        (rs6000_return_in_memory): Fix overlong line.
        (init_cmulative_args): Use quoted strings, and make more
        translator-friendly.
        (rs6000_pass_by_reference): Fix overlong line.
        (def_builtin): Use quoted strings.
        (altivec_expand_predicate_builtin): Use quoted strings, and make
        more translator-friendly.
        (htm_expand_builtin): Use quoted strings.
        (cpu_expand_builtin): Use quoted strings, and make more
        translator-friendly.
        (altivec_expand_builtin): Likewise.
        (paired_expand_predicate_builtin): Likewise.
        (rs6000_invalid_builtin): Likewise.
        (builtin_function_type): Use quoted strings.
        (rs6000_expand_split_stack_prologue): Use quoted strings, and make
        more translator-friendly.
        (rs6000_trampoline_init): Likewise.
        (rs6000_handle_altivec_attribute): Likewise.
        (rs6000_inner_target_options): Use quoted strings.
        (rs6000_disable_incompatible_switches): Likewise.
        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Use quoted
        strings, and make more translator-friendly.
        (SUBSUBTARGET_OVERRIDE_OPTIONS): Use quoted strings.

2017-08-14  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/81799
        * tree-loop-distribution.c (version_loop_by_alias_check): Force
        cond_expr to simple gimple operand.

2017-08-14  Wilco Dijkstra  <wdijkstr@arm.com>

        PR middle-end/46932
        * doc/sourcebuild.texi (autoincdec): Add autoincdec description.

2017-08-14  Georg-Johann Lay  <avr@gjlay.de>

        PR target/81754
        PR target/81268
        * config/avr/avr.opt (mgas-isr-prologues): New Var avr_gasisr_prologues.
        * config/avr/avr.md (gasisr, *gasisr): Use it instead of
        TARGET_GASISR_PROLOGUES.
        * config/avr/avr.c (avr_option_override): Same.
        (avr_pass_pre_proep::execute): Same.

2017-08-13  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/81820
        * config/i386/i386.c (ix86_finalize_stack_frame_flags): Replace
        frame pointer with stack pointer - UNITS_PER_WORD in debug insns.

2017-08-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*load_tp_<mode>): Redefine as
        define_insn_and_split.  Split to a memory load from 0 in
        DEFAULT_TLS_SEG_REG address space.  Merge with *load_tp_x32
        using PTR mode iterator.
        (*load_tp_x32_zext"): Redefine as define_insn_and_split.
        Split to a memory load from 0 in DEFAULT_TLS_SEG_REG address space.
        (*add_tp_<mode>): Redefine as define_insn_and_split.
        Split to an add with a memory load from 0 in DEFAULT_TLS_SEG_REG
        address space.  Merge with *add_tp_x32 using PTR mode iterator.
        (*add_tp_x32_zext"): Redefine as define_insn_and_split.
        Split to an add with a  memory load from 0 in
        DEFAULT_TLS_SEG_REG address space.

2017-08-12  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-option-extensions.def (rdma):
        Fix feature string to what Linux prints out in /proc/cpuinfo.

2017-08-12  Pierre-Marie de Rodat  <derodat@adacore.com>

        PR ada/79542
        * dwarf2out.c (modified_type_die): For C typedef types that have
        an ultimate origin, process the ultimate origin instead of the
        input type.
        (gen_typedef_die): Assert that input DECLs have no ultimate
        origin.
        (gen_type_die_with_usage): For typedef variants that have an
        ultimate origin, just call gen_decl_die on the original DECL.
        (process_scope_var): Avoid creating DIEs for local typedefs and
        concrete static variables.

2017-08-12  Alan Modra  <amodra@gmail.com>

        PR target/81170
        PR target/81295
        * config/rs6000/sysv4.h (STARTFILE_LINUX_SPEC): Upgrade to
        match gnu-user.h startfile.
        (ENDFILE_LINUX_SPEC): Similarly.

2017-08-11  Thomas Schwinge  <thomas@codesourcery.com>

        PR lto/81430
        * config/nvptx/nvptx.c (nvptx_override_options_after_change):
        Remove function.
        (TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE): Remove definition.

2017-08-11  Tamar Christina  <tamar.christina@arm.com>
        * config/aarch64/aarch64.md (mov<mode>): Change.
        (*movhf_aarch64, *movsf_aarch64, *movdf_aarch64):
        aarch64_reg_or_fp_float into aarch64_reg_or_fp_zero.
        * config/aarch64/predicates.md (aarch64_reg_or_fp_float): Removed.

2017-08-11  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-sra.c (build_access_from_expr_1): Use more precise diagnostics
        for storage order barriers.

2017-08-11  Martin Liska  <mliska@suse.cz>

        PR tree-opt/79987
        * tree-chkp.c (chkp_get_bounds_for_decl_addr): Do not instrument
        variables of void type.

2017-08-11  Martin Liska  <mliska@suse.cz>

        * asan.c (asan_protect_global): Replace ASM_OUTPUT_DEF with
        TARGET_SUPPORTS_ALIASES.
        * cgraph.c (cgraph_node::create_same_body_alias): Likewise.
        * ipa-visibility.c (can_replace_by_local_alias): Likewise.
        (optimize_weakref): Likewise.
        * symtab.c (symtab_node::noninterposable_alias): Likewise.
        * varpool.c (varpool_node::create_extra_name_alias): Likewise.
        * defaults.h: Introduce TARGET_SUPPORTS_ALIASES.

2017-08-11  Martin Liska  <mliska@suse.cz>

        PR ipa/81213
        * config/i386/i386.c (make_resolver_func): Do complete
        refactoring of the function.

2017-08-10  Uros Bizjak  <ubizjak@gmail.com>

        PR target/81708
        * config/i386/i386.opt (mstack-protector-guard-symbol=): New option
        * config/i386/i386.c (ix86_stack_protect_guard): Use
        ix86_stack_protect_guard_symbol_str to generate varible declaration.
        * doc/invoke.texi (x86 Options): Document
        -mstack-protector-guard-symbol= option.

2017-08-10  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-protos.h (ix86_split_stack_guard): New prototype.
        * config/i386/i386.c (ix86_split_stack_guard): New function.
        (ix86_xpand_split_stack_prologue): Call ix86_split_stack_guard.
        (ix86_legitimate_address_p) <case UNSPEC_STACK_CHECK>: Remove.
        (i386_asm_output_addr_const_extra) <case UNSPEC_STACK_CHECK>: Ditto.
        (optput_pic_addr_const): Remove UNSPEC_STACK_CHECK handling.
        * config/i386/i386.md (unspec): Remove UNSPEC_STACK_CHECK.
        (split_stack_space_check): Call ix86_split_stack_guard.

2017-08-10  Martin Sebor  <msebor@redhat.com>

        * print-tree.c (print_node): Print location using the established
        format %s:%i%i.
        Replace spaces with colons.
        (debug_raw, debug): Ditto.

2017-08-10  Martin Sebor  <msebor@redhat.com>

        PR c++/81586
        * pretty-print.c (pp_format): Correct the handling of %s precision.

2017-08-10  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/81736
        * config/i386/i386.c (ix86_finalize_stack_realign_flags): Renamed
        to ...
        (ix86_finalize_stack_frame_flags): This.  Also clear
        frame_pointer_needed if -fno-omit-frame-pointer is used without
        stack access.
        (ix86_expand_prologue): Replace ix86_finalize_stack_realign_flags
        with ix86_finalize_stack_frame_flags.
        (ix86_expand_epilogue): Likewise.
        (ix86_expand_split_stack_prologue): Likewise.
        * doc/invoke.texi: Add a note for -fno-omit-frame-pointer.

2017-08-10  Martin Liska  <mliska@suse.cz>

        PR c++/81355
        * c-attribs.c (handle_target_attribute):
        Report warning for an empty string argument of target attribute.

2017-08-09  Jakub Jelinek  <jakub@redhat.com>

        PR c/81687
        * omp-low.c (omp_copy_decl): Don't remap FORCED_LABEL or DECL_NONLOCAL
        LABEL_DECLs.
        * tree-cfg.c (move_stmt_op): Don't adjust DECL_CONTEXT of FORCED_LABEL
        or DECL_NONLOCAL labels.
        (move_stmt_r) <case GIMPLE_LABEL>: Adjust DECL_CONTEXT of FORCED_LABEL
        or DECL_NONLOCAL labels here.

2017-08-09  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_option_override_internal): Add blurb
        to indicate when early gimple folding has been disabled.
        (rs6000_gimple_fold_builtin): Add debug content.
        (rs6000_invalid_builtin): Fix whitespace.
        (rs6000_expand_builtin): Fix whitespace.
        * config/rs6000/rs6000.opt: Add option for -mfold-gimple.

2017-08-09  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/80938
        * config/rs6000/rs6000.c (rs6000_savres_strategy): Don't use
        SAVE_MULTIPLE if not all the registers that saves, should be saved.

2017-08-09  Jim Wilson  <jim.wilson@linaro.org>

        * config/aarch64/aarch64-cores.def (falkor): Use falkor pipeline.
        (qdf24xx): Likewise.
        * config/aarch64/aarch64.md: Include falkor.md.
        * config/aarch64/falkor.md: New.

2017-08-09  Marek Polacek  <polacek@redhat.com>

        PR c/81233
        * diagnostic-core.h (emit_diagnostic_valist): Add declaration.
        * diagnostic.c (emit_diagnostic): Add a comment.
        (emit_diagnostic_valist): New function.

2017-08-09  Marek Polacek  <polacek@redhat.com>

        PR c/81417
        * input.c (make_location): New overload.
        * input.h (make_location): Declare.

2017-08-08  Alan Modra  <amodra@gmail.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        PR driver/81523
        * gcc.c (NO_PIE_SPEC): Delete.
        (PIE_SPEC): Define as !no-pie/pie.  Move static|shared|r
        exclusion..
        (LINK_PIE_SPEC): ..to here.
        (LINK_COMMAND_SPEC): Support -no-pie.
        * config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Correct
        chain of crtbegin*.o selection, update for PIE_SPEC changes and
        format.
        (GNU_USER_TARGET_ENDFILE_SPEC): Similarly.
        * config/sol2.h (STARTFILE_CRTBEGIN_SPEC): Similarly.
        (ENDFILE_CRTEND_SPEC): Similarly.

2017-08-08  Uros Bizjak  <ubizjak@gmail.com>

        PR target/81708
        * config/i386/i386.opt (mstack-protector-guard-reg=): New option
        (mstack-protector-guard-offset=): Ditto.
        * config/i386/i386.c (ix86_option_override): Handle
        -mstack-protector-guard-reg= and -mstack-protector-guard-offset=
        options.
        (ix86_stack_protect_guard): Use ix86_stack_protect_guard_reg and
        ix86_stack_protect_guard_offset variables.
        (TARGET_STACK_PROTECT_GUARD): Always define.
        * doc/invoke.texi (x86 Options): Document -mstack-protector-guard-reg=
        and -mstack-protector-guard-offset= options.

2017-08-08  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (relate_compare_use_with_all_cands): Handle
        boundary case for the last candidate.

2017-08-08  Bin Cheng  <bin.cheng@arm.com>

        * doc/invoke.texi: Document -ftree-loop-distribution for O3.
        * opts.c (default_options_table): Add OPT_ftree_loop_distribution.

2017-08-08  Tamar Christina  <tamar.christina@arm.com>

        PR middle-end/19706
        * config/aarch64/aarch64.md (xorsign<mode>3): New optabs.
        * config/aarch64/aarch64-builtins.c
        (aarch64_builtin_vectorized_function): Added CASE_CFN_XORSIGN.
        * config/aarch64/aarch64-simd-builtins.def: Added xorsign BINOP.
        * config/aarch64/aarch64-simd.md: Added xorsign<mode>3

2017-08-08  Tamar Christina  <tamar.christina@arm.com>
            Andrew Pinski <pinskia@gmail.com>

        PR middle-end/19706
        * internal-fn.def (XORSIGN): New.
        * optabs.def (xorsign_optab): New.
        * tree-ssa-math-opts.c (is_copysign_call_with_1): New.
        (convert_expand_mult_copysign): New.
        (pass_optimize_widening_mul::execute): Call
        convert_expand_mult_copysign.

2017-08-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/81354
        * gimple-ssa-strength-reduction.c (create_add_on_incoming_edge):
        Insert on edges rather than explicitly creating landing pads.
        (analyze_candidates_and_replace): Commit edge inserts.

2017-08-08  Richard Biener  <rguenther@suse.de>

        PR middle-end/81719
        * tree-ssa-loop-niter.c: Include tree-dfa.h.
        (expand_simple_operations): Also look through ADDR_EXPRs with
        MEM_REF bases treating them as POINTER_PLUS_EXPR.

2017-08-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81723
        * tree-vect-slp.c (struct bst_traits): New hash traits.
        (bst_fail): New global.
        (vect_build_slp_tree_2): New worker, split out from ...
        (vect_build_slp_tree): ... this now wrapping it with using
        bst_fail set to cache SLP tree build fails.  Properly handle
        max_tree_size.
        (vect_analyze_slp_instance): Allocate and free bst_fail.

2017-08-08  Martin Liska  <mliska@suse.cz>

        PR tree-opt/81696
        * ipa-icf-gimple.c (func_checker::compare_cst_or_decl): Consider
        LABEL_DECLs that can be from a different function.

2017-08-08  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/81744
        * tree-predcom.c (prepare_finalizers_chain): Deep copy expr of
        loop's number of iterations.

2017-08-08  Martin Liska  <mliska@suse.cz>

        * asan.c: Include header files.
        * attribs.c (build_decl_attribute_variant): New function moved
        from tree.[ch].
        (build_type_attribute_qual_variant): Likewise.
        (cmp_attrib_identifiers): Likewise.
        (simple_cst_list_equal): Likewise.
        (omp_declare_simd_clauses_equal): Likewise.
        (attribute_value_equal): Likewise.
        (comp_type_attributes): Likewise.
        (build_type_attribute_variant): Likewise.
        (lookup_ident_attribute): Likewise.
        (remove_attribute): Likewise.
        (merge_attributes): Likewise.
        (merge_type_attributes): Likewise.
        (merge_decl_attributes): Likewise.
        (merge_dllimport_decl_attributes): Likewise.
        (handle_dll_attribute): Likewise.
        (attribute_list_equal): Likewise.
        (attribute_list_contained): Likewise.
        * attribs.h (lookup_attribute): New function moved from tree.[ch].
        (lookup_attribute_by_prefix): Likewise.
        * bb-reorder.c: Include header files.
        * builtins.c: Likewise.
        * calls.c: Likewise.
        * cfgexpand.c: Likewise.
        * cgraph.c: Likewise.
        * cgraphunit.c: Likewise.
        * convert.c: Likewise.
        * dwarf2out.c: Likewise.
        * final.c: Likewise.
        * fold-const.c: Likewise.
        * function.c: Likewise.
        * gimple-expr.c: Likewise.
        * gimple-fold.c: Likewise.
        * gimple-pretty-print.c: Likewise.
        * gimple.c: Likewise.
        * gimplify.c: Likewise.
        * hsa-common.c: Likewise.
        * hsa-gen.c: Likewise.
        * internal-fn.c: Likewise.
        * ipa-chkp.c: Likewise.
        * ipa-cp.c: Likewise.
        * ipa-devirt.c: Likewise.
        * ipa-fnsummary.c: Likewise.
        * ipa-inline.c: Likewise.
        * ipa-visibility.c: Likewise.
        * ipa.c: Likewise.
        * lto-cgraph.c: Likewise.
        * omp-expand.c: Likewise.
        * omp-general.c: Likewise.
        * omp-low.c: Likewise.
        * omp-offload.c: Likewise.
        * omp-simd-clone.c: Likewise.
        * opts-global.c: Likewise.
        * passes.c: Likewise.
        * predict.c: Likewise.
        * sancov.c: Likewise.
        * sanopt.c: Likewise.
        * symtab.c: Likewise.
        * toplev.c: Likewise.
        * trans-mem.c: Likewise.
        * tree-chkp.c: Likewise.
        * tree-eh.c: Likewise.
        * tree-into-ssa.c: Likewise.
        * tree-object-size.c: Likewise.
        * tree-parloops.c: Likewise.
        * tree-profile.c: Likewise.
        * tree-ssa-ccp.c: Likewise.
        * tree-ssa-live.c: Likewise.
        * tree-ssa-loop.c: Likewise.
        * tree-ssa-sccvn.c: Likewise.
        * tree-ssa-structalias.c: Likewise.
        * tree-ssa.c: Likewise.
        * tree-streamer-in.c: Likewise.
        * tree-vectorizer.c: Likewise.
        * tree-vrp.c: Likewise.
        * tsan.c: Likewise.
        * ubsan.c: Likewise.
        * varasm.c: Likewise.
        * varpool.c: Likewise.
        * tree.c: Remove functions moved to attribs.[ch].
        * tree.h: Likewise.
        * config/aarch64/aarch64.c: Add attrs.h header file.
        * config/alpha/alpha.c: Likewise.
        * config/arc/arc.c: Likewise.
        * config/arm/arm.c: Likewise.
        * config/avr/avr.c: Likewise.
        * config/bfin/bfin.c: Likewise.
        * config/c6x/c6x.c: Likewise.
        * config/cr16/cr16.c: Likewise.
        * config/cris/cris.c: Likewise.
        * config/darwin.c: Likewise.
        * config/epiphany/epiphany.c: Likewise.
        * config/fr30/fr30.c: Likewise.
        * config/frv/frv.c: Likewise.
        * config/ft32/ft32.c: Likewise.
        * config/h8300/h8300.c: Likewise.
        * config/i386/winnt.c: Likewise.
        * config/ia64/ia64.c: Likewise.
        * config/iq2000/iq2000.c: Likewise.
        * config/lm32/lm32.c: Likewise.
        * config/m32c/m32c.c: Likewise.
        * config/m32r/m32r.c: Likewise.
        * config/m68k/m68k.c: Likewise.
        * config/mcore/mcore.c: Likewise.
        * config/microblaze/microblaze.c: Likewise.
        * config/mips/mips.c: Likewise.
        * config/mmix/mmix.c: Likewise.
        * config/mn10300/mn10300.c: Likewise.
        * config/moxie/moxie.c: Likewise.
        * config/msp430/msp430.c: Likewise.
        * config/nds32/nds32-isr.c: Likewise.
        * config/nds32/nds32.c: Likewise.
        * config/nios2/nios2.c: Likewise.
        * config/nvptx/nvptx.c: Likewise.
        * config/pa/pa.c: Likewise.
        * config/pdp11/pdp11.c: Likewise.
        * config/powerpcspe/powerpcspe.c: Likewise.
        * config/riscv/riscv.c: Likewise.
        * config/rl78/rl78.c: Likewise.
        * config/rx/rx.c: Likewise.
        * config/s390/s390.c: Likewise.
        * config/sh/sh.c: Likewise.
        * config/sol2.c: Likewise.
        * config/sparc/sparc.c: Likewise.
        * config/spu/spu.c: Likewise.
        * config/stormy16/stormy16.c: Likewise.
        * config/tilegx/tilegx.c: Likewise.
        * config/tilepro/tilepro.c: Likewise.
        * config/v850/v850.c: Likewise.
        * config/vax/vax.c: Likewise.
        * config/visium/visium.c: Likewise.
        * config/xtensa/xtensa.c: Likewise.

2017-08-07  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/81593
        * config/rs6000/vsx.md (vsx_concat_<mode>, VSX_D): Cleanup
        constraints since the -mupper-regs-* switches have been
        eliminated.
        (vsx_concat_<mode>_1): New combiner insns to recognize inserting
        into a vector from a double word element that was extracted from
        another vector, and eliminate extra XXPERMDI instructions.
        (vsx_concat_<mode>_2): Likewise.
        (vsx_concat_<mode>_3): Likewise.
        (vsx_set_<mode>, VSX_D): Rewrite vector set in terms of vector
        concat to allow optimizing inserts from previous extracts.

2017-08-07  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_stack_protect_guard): Generate
        memory reference to a SSP offset in TLS address space.
        (ix86_print_operand) <case '@'>: Remove.
        (ix86_print_operand_punct_valid_p): Remove '@' code.
        * config/i386/i386.md (unspec): Remove UNSPEC_SP_TLS_SET and
        UNSPEC_SP_TLS_TEST.
        (stack_tls_protect_set_<mode>): Remove.
        (stack_protect_set): Do not call gen_stack_tls_protect_set_<mode>.
        (stack_tls_protect_test_<mode>): Remove.
        (stack_protect_test): Do not call gen_stack_tls_protect_test_<mode>.

2017-08-07  Olivier Hainque  <hainque@adacore.com>

        PR target/81755
        * config/vxworksae.h (VXWORKS_HAVE_TLS): Define.

2017-08-07  Douglas Rupp  <rupp@adacore.com>

        * Makefile.in (install-mkheaders): Fix typo, where the multi_dir
        variable was referenced as multidir in command.

2017-08-07  Jakub Jelinek  <jakub@redhat.com>

        PR c/69389
        * gimplify.c (goa_stabilize_expr): Handle BIT_INSERT_EXPR and
        BIT_FIELD_REF.

2017-08-07  Martin Liska  <mliska@suse.cz>

        * config/m32c/m32c.c: Add include of stringpool.h and attribs.h.
        * config/rl78/rl78.c: Add include of attribs.h.
        * config/sh/sh.c: Likewise.
        * config/v850/v850.c: Likewise.

2017-08-07  Tom de Vries  <tom@codesourcery.com>

        PR middle-end/78266
        * omp-expand.c (expand_oacc_for): Ensure diff_type is large enough.

2017-08-07  Martin Liska  <mliska@suse.cz>

        * config/mips/mips.c: Include attribs.h.

2017-08-07  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/68829
        * doc/invoke.texi: Document change in behvaior for -Ofast for
        Fortran.

2017-08-07  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_pushwb_single_reg):
        Use gen_frame_mem.
        (aarch64_pop_regs): Likewise.
        (aarch64_gen_load_pair): Likewise.
        (aarch64_save_callee_saves): Likewise.
        (aarch64_restore_callee_saves): Likewise.

2017-08-07  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c: Revert the last change.

2017-08-07  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/81736
        * config/i386/i386.c (ix86_finalize_stack_realign_flags): Renamed
        to ...
        (ix86_finalize_stack_frame_flags): This.  Also clear
        frame_pointer_needed if -fno-omit-frame-pointer is used without
        stack access.
        (ix86_expand_prologue): Replace ix86_finalize_stack_realign_flags
        with ix86_finalize_stack_frame_flags.
        (ix86_expand_epilogue): Likewise.
        (ix86_expand_split_stack_prologue): Likewise.

2017-08-07  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/81743
        * config/i386/i386.c (get_builtin_code_for_version): Set priority
        to P_AES for Westmere.

2017-08-07  Jonathan Yong  <10walls@gmail.com>

        * config/i386/mingw.opt (fset-stack-executable): Removed.
        * config/i386/cygming.opt (fset-stack-executable): Moved
        from mingw.opt.
        * config/i386/cygwin.h: Define CHECK_EXECUTE_STACK_ENABLED.

2017-08-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * print-rtl.c (print_exp): Print NOT as "~" instead of as "!".

2017-08-07  Marek Polacek  <polacek@redhat.com>

        PR middle-end/81737
        * fold-const.c (fold_indirect_ref_1): Check type_domain.

2017-08-07  Martin Liska  <mliska@suse.cz>

        * attribs.h (canonicalize_attr_name): New function.
        (cmp_attribs): Move from c-format.c and adjusted.
        (is_attribute_p): Moved from tree.h.
        * tree-inline.c: Add new includes.
        * tree.c (cmp_attrib_identifiers): Use cmp_attribs.
        (private_is_attribute_p): Remove.
        (private_lookup_attribute): Likewise.
        (private_lookup_attribute_by_prefix): Simplify.
        (remove_attribute): Use is_attribute_p.
        * tree.h: Remove removed declarations.

2017-08-07  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/81698
        * stmt.c (emit_case_dispatch_table): Add DEFAULT_EDGE argument,
        instead of computing it in the function.  Formatting fix.
        (expand_case): Don't rely on default_edge being the first edge,
        clear it if removing it, pass default_edge to
        emit_case_dispatch_table.
        (expand_sjlj_dispatch_table): Pass NULL as DEFAULT_EDGE, formatting
        fix.

2017-08-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (alpha_reorg): If trap is the last active
        insn in the function, emit NOP after the insn.

2017-08-06  Tom de Vries  <tom@codesourcery.com>

        * omp-expand.c (expand_oacc_for): Add missing edge probability for tile
        and element loops.

2017-08-06  Tom de Vries  <tom@codesourcery.com>

        * omp-expand.c (expand_oacc_for): Add missing edge probability for chunk
        loop.

2017-08-04  Yury Gribov  <tetra2005@gmail.com>

        PR tree-optimization/57371
        * match.pd: New pattern.

2017-08-04  Marek Polacek  <polacek@redhat.com>

        PR middle-end/81695
        * fold-const.c (fold_indirect_ref_1): For ((int *)&a + 4 -> a[1],
        perform the computation in offset_int.

2017-08-04  Richard Sandiford  <richard.sandiford@linaro.org>

        PR tree-optimization/81136
        * tree-vectorizer.h: Include tree-hash-traits.h.
        (vec_base_alignments): New typedef.
        (vec_info): Add a base_alignments field.
        (vect_record_base_alignments): Declare.
        * tree-data-ref.h (data_reference): Add an is_conditional_in_stmt
        field.
        (DR_IS_CONDITIONAL_IN_STMT): New macro.
        (create_data_ref): Add an is_conditional_in_stmt argument.
        * tree-data-ref.c (create_data_ref): Likewise.  Use it to initialize
        the is_conditional_in_stmt field.
        (data_ref_loc): Add an is_conditional_in_stmt field.
        (get_references_in_stmt): Set the is_conditional_in_stmt field.
        (find_data_references_in_stmt): Update call to create_data_ref.
        (graphite_find_data_references_in_stmt): Likewise.
        * tree-ssa-loop-prefetch.c (determine_loop_nest_reuse): Likewise.
        * tree-vect-data-refs.c (vect_analyze_data_refs): Likewise.
        (vect_record_base_alignment): New function.
        (vect_record_base_alignments): Likewise.
        (vect_compute_data_ref_alignment): Adjust base_addr and aligned_to
        for nested statements even if we fail to compute a misalignment.
        Use pooled base alignments for unconditional references.
        (vect_find_same_alignment_drs): Compare base addresses instead
        of base objects.
        (vect_analyze_data_refs_alignment): Call vect_record_base_alignments.
        * tree-vect-slp.c (vect_slp_analyze_bb_1): Likewise.

2017-08-04  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-vectorizer.h (vec_info): Add a constructor and destructor.
        Add an explicit name for the enum.  Use auto_vec for slp_instances
        and grouped_stores.
        (_loop_vec_info): Add a constructor and destructor.  Use auto_vec
        for all vectors.
        (_bb_vec_info): Add a constructor and destructor.
        (vinfo_for_stmt): Return NULL for uids of -1 as well.
        (destroy_loop_vec_info): Delete.
        (vect_destroy_datarefs): Likewise.
        * tree-vectorizer.c (vect_destroy_datarefs): Delete.
        (vec_info::vec_info): New function.
        (vec_info::~vec_info): Likewise.
        (vectorize_loops): Use delete instead of destroy_loop_vec_info.
        * tree-parloops.c (gather_scalar_reductions): Use delete instead of
        destroy_loop_vec_info.
        * tree-vect-loop.c (new_loop_vec_info): Replace with...
        (_loop_vec_info::_loop_vec_info): ...this.
        (destroy_loop_vec_info): Replace with...
        (_loop_vec_info::~_loop_vec_info): ...this.  Unconditionally delete
        the stmt_vec_infos.  Leave handling of vec_info information to its
        destructor.  Remove explicit vector releases.
        (vect_analyze_loop_form): Use new instead of new_loop_vec_info.
        (vect_analyze_loop): Use delete instead of destroy_loop_vec_info.
        * tree-vect-slp.c (new_bb_vec_info): Replace with...
        (_bb_vec_info::_bb_vec_info): ...this.  Don't reserve space in
        BB_VINFO_GROUPED_STORES or BB_VINFO_SLP_INSTANCES.
        (destroy_bb_vec_info): Replace with...
        (_bb_vec_info::~_bb_vec_info): ...this.  Leave handling of vec_info
        information to its destructor.
        (vect_slp_analyze_bb_1): Use new and delete instead of
        new_bb_vec_info and destroy_bb_vec_info.
        (vect_slp_bb): Replace 2 calls to destroy_bb_vec_info with a
        single delete.

2017-08-04  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-data-ref.h (subscript): Add access_fn field.
        (data_dependence_relation): Add could_be_independent_p.
        (SUB_ACCESS_FN, DDR_COULD_BE_INDEPENDENT_P): New macros.
        (same_access_functions): Move to tree-data-ref.c.
        * tree-data-ref.c (ref_contains_union_access_p): New function.
        (access_fn_component_p): Likewise.
        (access_fn_components_comparable_p): Likewise.
        (dr_analyze_indices): Add a reference to access_fn_component_p.
        (dump_data_dependence_relation): Use SUB_ACCESS_FN instead of
        DR_ACCESS_FN.
        (constant_access_functions): Likewise.
        (add_other_self_distances): Likewise.
        (same_access_functions): Likewise.  (Moved from tree-data-ref.h.)
        (initialize_data_dependence_relation): Use XCNEW and remove
        explicit zeroing of DDR_REVERSED_P.  Look for a subsequence
        of access functions that have the same type.  Allow the
        subsequence to end with different bases in some circumstances.
        Record the chosen access functions in SUB_ACCESS_FN.
        (build_classic_dist_vector_1): Replace ddr_a and ddr_b with
        a_index and b_index.  Use SUB_ACCESS_FN instead of DR_ACCESS_FN.
        (subscript_dependence_tester_1): Likewise dra and drb.
        (build_classic_dist_vector): Update calls accordingly.
        (subscript_dependence_tester): Likewise.
        * tree-ssa-loop-prefetch.c (determine_loop_nest_reuse): Check
        DDR_COULD_BE_INDEPENDENT_P.
        * tree-vectorizer.h (LOOP_REQUIRES_VERSIONING_FOR_ALIAS): Test
        comp_alias_ddrs instead of may_alias_ddrs.
        * tree-vect-data-refs.c (vect_analyze_possibly_independent_ddr):
        New function.
        (vect_analyze_data_ref_dependence): Use it if
        DDR_COULD_BE_INDEPENDENT_P, but fall back to using the recorded
        distance vectors if that fails.
        (dependence_distance_ge_vf): New function.
        (vect_prune_runtime_alias_test_list): Use it.  Don't clear
        LOOP_VINFO_MAY_ALIAS_DDRS.

2017-08-04  Richard Biener  <rguenther@suse.de>

        PR middle-end/81705
        * fold-const.c (fold_binary_loc): Properly restrict
        minus_var0 && minus_var1 case when associating undefined overflow
        entities.

2017-08-04  Tom de Vries  <tom@codesourcery.com>

        * omp-simd-clone.c (simd_clone_adjust): Add missing edge probability.

2017-08-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        Don't start diagnostic messages with a capital letter.
        * config/rs6000/rs6000.c (rs6000_option_override_internal):
        Likewise.
        (rs6000_invalid_builtin): Likewise.
        (rs6000_trampoline_init): Likewise.

2017-08-03  Jakub Jelinek  <jakub@redhat.com>

        PR target/81621
        * bb-reorder.c (pass_partition_blocks::execute): Return TODO_df_finish
        after setting changeable df flags.

2017-08-03  Richard Biener  <rguenther@suse.de>

        * tree-ssa-reassoc.c (should_break_up_subtract): Also break
        up if the use is in USE - X.

2017-08-03  Alexander Monakov  <amonakov@ispras.ru>

        * toplev.c (dumpfile.h): New include.
        (internal_error_reentered): New static function.  Use it...
        (internal_error_function): ...here to handle reentered internal_error.

2017-08-03  Richard Biener  <rguenther@suse.de>

        PR middle-end/81148
        * fold-const.c (split_tree): Add minus_var and minus_con
        arguments, remove unused loc arg.  Never generate NEGATE_EXPRs
        here but always use minus_*.
        (associate_trees): Assert we never associate with MINUS_EXPR
        and NULL first operand.  Do not recurse for PLUS_EXPR operands
        when associating as MINUS_EXPR either.
        (fold_binary_loc): Track minus_var and minus_con.

2017-08-03  Tom de Vries  <tom@codesourcery.com>

        PR lto/81430
        * tree-streamer-in.c (lto_input_ts_function_decl_tree_pointers): If
        ACCEL_COMPILER, apply finish_options on
        DECL_FUNCTION_SPECIFIC_OPTIMIZATION.

2017-08-03  Tom de Vries  <tom@codesourcery.com>

        PR target/81662
        * config/nvptx/nvptx.c (nvptx_option_override): Emit sorry if
        function_entry_patch_area_size > 0.

2017-08-03  Jakub Jelinek  <jakub@redhat.com>

        PR driver/81650
        * calls.c (alloc_max_size): Use HOST_WIDE_INT_UC (10??)
        instead of 10??LU, perform unit multiplication in wide_int,
        don't change alloc_object_size_limit if the limit is larger
        than SSIZE_MAX.

        PR tree-optimization/81655
        PR tree-optimization/81588
        * tree-ssa-reassoc.c (optimize_range_tests_var_bound): Handle also
        the case when ranges[i].low and high are 1 for unsigned type with
        precision 1.

        PR middle-end/81052
        * omp-low.c (diagnose_sb_0): Handle flag_openmp_simd like flag_openmp.
        (pass_diagnose_omp_blocks::gate): Enable also for flag_openmp_simd.

2017-08-03  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * tree-vrp.h: Add include guard.

2017-08-02  Uros Bizjak  <ubizjak@gmail.com>

        PR target/81644
        * config/i386/i386.md (unspecv): Add UNSPECV_UD2.
        (ud2): New insn pattern.
        * config/i386/i386.c (ix86_expand_epilogue):
        For naked functions, generate ud2 instead of trap insn.

2017-08-02  Marek Polacek  <polacek@redhat.com>

        PR other/81667
        * alloc-pool.h (base_pool_allocator): Initialize m_elt_size.

2017-08-02  Tom de Vries  <tom@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>

        * config/nvptx/nvptx.c (nvptx_lockless_update, nvptx_lockfull_update):
        Add missing edge probabilities.

2017-08-02  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64.c (aarch64_reinterpret_float_as_int):
        Correct endianness.

2017-08-02  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/79499
        * function.c (thread_prologue_and_epilogue_insns): Determine blocks
        for find_many_sub_basic_blocks bitmap by looking up BLOCK_FOR_INSN
        of first NONDEBUG_INSN_P in each of the split_prologue_seq and
        prologue_seq sequences - if any.

2017-08-02  Richard Biener  <rguenther@suse.de>

        * tree-vect-stmts.c (vectorizable_store): Perform vector extracts
        via vectors if supported, integer extracts via punning if supported
        or otherwise vector extracts.

2017-08-02  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c (bitmap_insert_into_set_1): Remove and inline
        into ...
        (bitmap_insert_into_set): ... this.

2017-08-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81633
        Revert
        2015-08-17  Alan Hayward  <alan.hayward@arm.com>

        PR tree-optimization/71752
        * tree-vect-slp.c (vect_get_slp_defs): Handle null operands.

2017-08-01  Daniel Santos  <daniel.santos@pobox.com>

        * config/i386/i386.h (ix86_frame::outlined_save_offset): Remove field.
        (machine_function::call_ms2sysv_pad_out): Remove field.
        * config/i386/i386.c (xlogue_layout::get_stack_space_used): Modify.
        (ix86_compute_frame_layout): Likewise.

2017-08-01  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/81654
        * config/i386/i386.c (ix86_set_func_type): Disallow naked
        attribute with interrupt attribute.

2017-08-01  Andrew Pinski  <apinski@cavium.com>

        * tree-ssa-scopedtables.c (hashable_expr_equal_p): Check
        BIT_INSERT_EXPR's operand 1
        to see if the types precision matches.

2017-08-01  Martin Liska  <mliska@suse.cz>

        PR middle-end/70140
        * builtins.c (expand_builtin_memcpy_args): Remove.
        (expand_builtin_memcpy): Call newly added function
        expand_builtin_memory_copy_args.
        (expand_builtin_memcpy_with_bounds): Likewise.
        (expand_builtin_mempcpy): Remove last argument.
        (expand_builtin_mempcpy_with_bounds): Likewise.
        (expand_builtin_memory_copy_args): New function created from
        expand_builtin_mempcpy_args with small modifications.
        (expand_builtin_mempcpy_args): Remove.
        (expand_builtin_stpcpy): Remove unused argument.
        (expand_builtin): Likewise.
        (expand_builtin_with_bounds): Likewise.

2017-08-01  Martin Liska  <mliska@suse.cz>

        Revert r250771
        Make mempcpy more optimal (PR middle-end/70140).

2017-08-01  Jakub Jelinek  <jakub@redhat.com>

        PR target/81622
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): For
        __builtin_vec_cmpne verify both arguments are compatible vectors
        before looking at TYPE_MODE on the element type.  For __builtin_vec_ld
        verify arg1_type is a pointer or array type.  For __builtin_vec_st,
        move computation of aligned to after checking the argument types.
        Formatting fixes.

        PR target/80846
        * config/rs6000/vsx.md (vextract_fp_from_shorth,
        vextract_fp_from_shortl): Add element mode after mode in gen_vec_init*
        calls.

2017-08-01  Jerome Lambourg  <lambourg@adacore.com>
            Doug Rupp  <rupp@adacore.com>
            Olivier Hainque  <hainque@adacore.com>

        * config.gcc (arm-wrs-vxworks*): Rework to handle arm-wrs-vxworks7 as
        well as arm-wrs-vxworks. Update target_cpu_name from arm6 (arch v3) to
        arm8 (arch v4).
        * config/arm/vxworks.h (MAYBE_TARGET_BPABI_CPP_BUILTINS): New, helper
        for TARGET_OS_CPP_BUILTIN.
        (TARGET_OS_CPP_BUILTIN): Invoke MAYBE_TARGET_BPABI_CPP_BUILTINS(),
        refine CPU definitions for arm_arch5 and add those for arm_arch6 and
        arm_arch7.
        (MAYBE_ASM_ABI_SPEC): New, helper for SUBTARGET_EXTRA_ASM_SPEC,
        passing required abi options to the assembler for EABI configurations.
        (EXTRA_CC1_SPEC): New macro, to help prevent the implicit production
        of .text.hot and .text.unlikely sections for kernel modules when
        using ARM style exceptions.
        (CC1_SPEC): Remove obsolete attempt at mimicking Diab toolchain
        options. Add EXTRA_CC1_SPEC.
        (VXWORKS_ENDIAN_SPEC): Adjust comment and remove handling of Diab
        toolchain options.
        (DWARF2_UNWIND_INFO): Redefine to handle the pre/post VxWorks 7
        transition.
        (ARM_TARGET2_DWARF_FORMAT): Define.
        * config/arm/t-vxworks: Adjust multilib control to removal of the
        Diab command line options.

2017-08-01  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/81561
        * gcov.c (unblock): Make unblocking safe as we need to preserve
        index correspondence of blocks and block_lists.

2017-08-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81181
        * tree-ssa-pre.c (compute_antic_aux): Defer clean() to ...
        (compute_antic): ... end of iteration here.

2017-08-01  James Greenhalgh  <james.greenhalgh@arm.com>

        * common.opt (ftree-vectorize): No longer set flag_tree_vectorize.
        (ftree-loop-vectorize): Set as EnabledBy ftree-vectorize.
        (ftree-slp-vectorize): Likewise.
        * omp-expand (expand_omp_simd): Remove flag_tree_vectorize, as it
        can no longer be set independent of flag_tree_loop_vectorize.
        * omp-general.c (emp_max_vf): Likewise.
        * opts.c (enable_fdo_optimizations): Remove references to
        flag_tree_vectorize, these are now implicit.
        (common_handle_option): Remove handling for OPT_ftree_vectorize,
        and leave it for the options machinery.

2017-08-01  Martin Liska  <mliska@suse.cz>

        PR middle-end/70140
        * builtins.c (expand_builtin_memcpy_args): Remove.
        (expand_builtin_memcpy): Call newly added function
        expand_builtin_memory_copy_args.
        (expand_builtin_memcpy_with_bounds): Likewise.
        (expand_builtin_mempcpy): Remove last argument.
        (expand_builtin_mempcpy_with_bounds): Likewise.
        (expand_builtin_memory_copy_args): New function created from
        expand_builtin_mempcpy_args with small modifications.
        (expand_builtin_mempcpy_args): Remove.
        (expand_builtin_stpcpy): Remove unused argument.
        (expand_builtin): Likewise.
        (expand_builtin_with_bounds): Likewise.

2017-08-01  Uros Bizjak  <ubizjak@gmail.com>

        PR target/81641
        * config/i386/i386.c (ix86_print_operand_address_as): For -masm=intel
        print "ds:" only for immediates in generic address space.

2017-08-01  Uros Bizjak  <ubizjak@gmail.com>

        PR target/81639
        * config/i386/i386.c (ix86_funciton_naked): New prototype.
        (ix86_function_ok_for_sibcall): Return false for naked functions.

2017-08-01  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c (print_pre_expr): Handle NULL expr.
        (compute_antic): Seed worklist with exit block predecessors.
        * cfganal.c (dfs_find_deadend): For a cycle return the source
        of the edge closing it.

2017-08-01  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64.c
        (aarch64_can_const_movi_rtx_p): Move 0 check.

2017-08-01  Bin Cheng  <bin.cheng@arm.com>

        * tree.h (POINTER_TYPE_OVERFLOW_UNDEFINED): Delete.
        * fold-const.c (fold_comparison, fold_binary_loc): Delete use of
        above macro.
        * match.pd: Ditto in address comparison pattern.

2017-08-01  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/81627
        * tree-predcom.c (prepare_finalizers): Always rewrite into loop
        closed ssa form for store-store chain.

2017-08-01  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/81620
        * tree-predcom.c (add_ref_to_chain): Don't set has_max_use_after
        for store-store chain.

2017-08-01  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/81588
        * tree-ssa-reassoc.c (optimize_range_tests_var_bound): If
        ranges[i].in_p, invert comparison code ccode.  For >/>=,
        swap rhs1 and rhs2 and comparison code unconditionally,
        for </<= don't do that.  Don't swap rhs1/rhs2 again if
        ranges[i].in_p, instead invert comparison code ccode if
        opcode or oe->rank is BIT_IOR_EXPR.

        PR target/80846
        * optabs.def (vec_extract_optab, vec_init_optab): Change from
        a direct optab to conversion optab.
        * optabs.c (expand_vector_broadcast): Use convert_optab_handler
        with GET_MODE_INNER as last argument instead of optab_handler.
        * expmed.c (extract_bit_field_1): Likewise.  Use vector from
        vector extraction if possible and optab is available.
        * expr.c (store_constructor): Use convert_optab_handler instead
        of optab_handler.  Use vector initialization from smaller
        vectors if possible and optab is available.
        * tree-vect-stmts.c (vectorizable_load): Likewise.
        * doc/md.texi (vec_extract, vec_init): Document that the optabs
        now have two modes.
        * config/i386/i386.c (ix86_expand_vector_init): Handle expansion
        of vec_init from half-sized vectors with the same element mode.
        * config/i386/sse.md (ssehalfvecmode): Add V4TI case.
        (ssehalfvecmodelower, ssescalarmodelower): New mode attributes.
        (reduc_plus_scal_v8df, reduc_plus_scal_v4df, reduc_plus_scal_v2df,
        reduc_plus_scal_v16sf, reduc_plus_scal_v8sf, reduc_plus_scal_v4sf,
        reduc_<code>_scal_<mode>, reduc_umin_scal_v8hi): Add element mode
        after mode in gen_vec_extract* calls.
        (vec_extract<mode>): Renamed to ...
        (vec_extract<mode><ssescalarmodelower>): ... this.
        (vec_extract<mode><ssehalfvecmodelower>): New expander.
        (rotl<mode>3, rotr<mode>3, <shift_insn><mode>3, ashrv2di3): Add
        element mode after mode in gen_vec_init* calls.
        (VEC_INIT_HALF_MODE): New mode iterator.
        (vec_init<mode>): Renamed to ...
        (vec_init<mode><ssescalarmodelower>): ... this.
        (vec_init<mode><ssehalfvecmodelower>): New expander.
        * config/i386/mmx.md (vec_extractv2sf): Renamed to ...
        (vec_extractv2sfsf): ... this.
        (vec_initv2sf): Renamed to ...
        (vec_initv2sfsf): ... this.
        (vec_extractv2si): Renamed to ...
        (vec_extractv2sisi): ... this.
        (vec_initv2si): Renamed to ...
        (vec_initv2sisi): ... this.
        (vec_extractv4hi): Renamed to ...
        (vec_extractv4hihi): ... this.
        (vec_initv4hi): Renamed to ...
        (vec_initv4hihi): ... this.
        (vec_extractv8qi): Renamed to ...
        (vec_extractv8qiqi): ... this.
        (vec_initv8qi): Renamed to ...
        (vec_initv8qiqi): ... this.
        * config/rs6000/vector.md (VEC_base_l): New mode attribute.
        (vec_init<mode>): Renamed to ...
        (vec_init<mode><VEC_base_l>): ... this.
        (vec_extract<mode>): Renamed to ...
        (vec_extract<mode><VEC_base_l>): ... this.
        * config/rs6000/paired.md (vec_initv2sf): Renamed to ...
        (vec_initv2sfsf): ... this.
        * config/rs6000/altivec.md (splitter, altivec_copysign_v4sf3,
        vec_unpacku_hi_v16qi, vec_unpacku_hi_v8hi, vec_unpacku_lo_v16qi,
        vec_unpacku_lo_v8hi, mulv16qi3, altivec_vreve<mode>2): Add
        element mode after mode in gen_vec_init* calls.
        * config/aarch64/aarch64-simd.md (vec_init<mode>): Renamed to ...
        (vec_init<mode><Vel>): ... this.
        (vec_extract<mode>): Renamed to ...
        (vec_extract<mode><Vel>): ... this.
        * config/aarch64/iterators.md (Vel): New mode attribute.
        * config/s390/s390.c (s390_expand_vec_strlen, s390_expand_vec_movstr):
        Add element mode after mode in gen_vec_extract* calls.
        * config/s390/vector.md (non_vec_l): New mode attribute.
        (vec_extract<mode>): Renamed to ...
        (vec_extract<mode><non_vec_l>): ... this.
        (vec_init<mode>): Renamed to ...
        (vec_init<mode><non_vec_l>): ... this.
        * config/s390/s390-builtins.def (s390_vlgvb, s390_vlgvh, s390_vlgvf,
        s390_vlgvf_flt, s390_vlgvg, s390_vlgvg_dbl): Add element mode after
        vec_extract mode.
        * config/arm/iterators.md (V_elem_l): New mode attribute.
        * config/arm/neon.md (vec_extract<mode>): Renamed to ...
        (vec_extract<mode><V_elem_l>): ... this.
        (vec_extractv2di): Renamed to ...
        (vec_extractv2didi): ... this.
        (vec_init<mode>): Renamed to ...
        (vec_init<mode><V_elem_l>): ... this.
        (reduc_plus_scal_<mode>, reduc_plus_scal_v2di, reduc_smin_scal_<mode>,
        reduc_smax_scal_<mode>, reduc_umin_scal_<mode>,
        reduc_umax_scal_<mode>, neon_vget_lane<mode>, neon_vget_laneu<mode>):
        Add element mode after gen_vec_extract* calls.
        * config/mips/mips-msa.md (vec_init<mode>): Renamed to ...
        (vec_init<mode><unitmode>): ... this.
        (vec_extract<mode>): Renamed to ...
        (vec_extract<mode><unitmode>): ... this.
        * config/mips/loongson.md (vec_init<mode>): Renamed to ...
        (vec_init<mode><unitmode>): ... this.
        * config/mips/mips-ps-3d.md (vec_initv2sf): Renamed to ...
        (vec_initv2sfsf): ... this.
        (vec_extractv2sf): Renamed to ...
        (vec_extractv2sfsf): ... this.
        (reduc_plus_scal_v2sf, reduc_smin_scal_v2sf, reduc_smax_scal_v2sf):
        Add element mode after gen_vec_extract* calls.
        * config/mips/mips.md (unitmode): New mode iterator.
        * config/spu/spu.c (spu_expand_prologue, spu_allocate_stack,
        spu_builtin_extract): Add element mode after gen_vec_extract* calls.
        * config/spu/spu.md (inner_l): New mode attribute.
        (vec_init<mode>): Renamed to ...
        (vec_init<mode><inner_l>): ... this.
        (vec_extract<mode>): Renamed to ...
        (vec_extract<mode><inner_l>): ... this.
        * config/sparc/sparc.md (veltmode): New mode iterator.
        (vec_init<VMALL:mode>): Renamed to ...
        (vec_init<VMALL:mode><VMALL:veltmode>): ... this.
        * config/ia64/vect.md (vec_initv2si): Renamed to ...
        (vec_initv2sisi): ... this.
        (vec_initv2sf): Renamed to ...
        (vec_initv2sfsf): ... this.
        (vec_extractv2sf): Renamed to ...
        (vec_extractv2sfsf): ... this.
        * config/powerpcspe/vector.md (VEC_base_l): New mode attribute.
        (vec_init<mode>): Renamed to ...
        (vec_init<mode><VEC_base_l>): ... this.
        (vec_extract<mode>): Renamed to ...
        (vec_extract<mode><VEC_base_l>): ... this.
        * config/powerpcspe/paired.md (vec_initv2sf): Renamed to ...
        (vec_initv2sfsf): ... this.
        * config/powerpcspe/altivec.md (splitter, altivec_copysign_v4sf3,
        vec_unpacku_hi_v16qi, vec_unpacku_hi_v8hi, vec_unpacku_lo_v16qi,
        vec_unpacku_lo_v8hi, mulv16qi3): Add element mode after mode in
        gen_vec_init* calls.

2017-08-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81297
        * tree-vrp.c (get_single_symbol): Remove assert, instead drop
        TREE_OVERFLOW from INTEGER_CSTs.

2017-07-31  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (enum rs6000_reg_type): Delete trailing comma.

2017-07-31  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c: Add support for built-in functions
        vector signed char vec_xl_be (signed long long, signed char *);
        vector unsigned char vec_xl_be (signed long long, unsigned char *);
        vector signed int vec_xl_be (signed long long, signed int *);
        vector unsigned int vec_xl_be (signed long long, unsigned int *);
        vector signed long long vec_xl_be (signed long long, signed long long *);
        vector unsigned long long vec_xl_be (signed long long, unsigned long long *);
        vector signed short vec_xl_be (signed long long, signed short *);
        vector unsigned short vec_xl_be (signed long long, unsigned short *);
        vector double vec_xl_be (signed long long, double *);
        vector float vec_xl_be (signed long long, float *);
        * config/rs6000/altivec.h (vec_xl_be): Add #define.
        * config/rs6000/rs6000-builtin.def (XL_BE_V16QI, XL_BE_V8HI, XL_BE_V4SI)
        XL_BE_V2DI, XL_BE_V4SF, XL_BE_V2DF, XL_BE): Add definitions
        for the builtins.
        * config/rs6000/rs6000.c (altivec_expand_xl_be_builtin): Add function.
        (altivec_expand_builtin): Add switch statement to call
        altivec_expand_xl_be for each builtin.
        (altivec_init_builtins): Add def_builtin for _builtin_vsx_le_be_v8hi,
        __builtin_vsx_le_be_v4si, __builtin_vsx_le_be_v2di,
        __builtin_vsx_le_be_v4sf, __builtin_vsx_le_be_v2df,
        __builtin_vsx_le_be_v16qi.
        * doc/extend.texi: Update the built-in documentation file for the
        new built-in functions.

2017-07-31  Uros Bizjak  <ubizjak@gmail.com>

        PR target/25967
        * config/i386/i386.c (ix86_allocate_stack_slots_for_args):
        New function.
        (TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS): Define.

2017-07-31  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config.gcc: Add z14.
        * config/s390/driver-native.c (s390_host_detect_local_cpu): Add
        CPU model numbers for z13s and z14.
        * config/s390/s390-c.c (s390_resolve_overloaded_builtin): Replace
        arch12 with z14.
        * config/s390/s390-opts.h (enum processor_type): Rename
        PROCESSOR_ARCH12 to PROCESSOR_3906_Z14.
        * config/s390/s390.c (processor_table): Add field for CPU name to
        be passed to Binutils.
        (s390_asm_output_machine_for_arch): Use the new field in
        processor_table for Binutils.
        (s390_expand_builtin): Replace arch12 with z14.
        (s390_issue_rate): Rename PROCESSOR_ARCH12 to PROCESSOR_3906_Z14.
        (s390_get_sched_attrmask): Likewise.
        (s390_get_unit_mask): Likewise.
        * config/s390/s390.opt: Add z14 to processor_type enum.

2017-07-31  Martin Jambor  <mjambor@suse.cz>

        PR hsa/81477
        * ipa-fnsummary.c (ipa_fn_summary_generate): Set versionable
        regardless of optimization level.

2017-07-31  Jan Hubicka <hubicka@ucw.cz>
            Martin Liska  <mliska@suse.cz>

        * predict.def: Remove old comment and adjust probability.
        * gimplify.c (should_warn_for_implicit_fallthrough): Ignore
        PREDICT statements.

2017-07-31  Uros Bizjak  <ubizjak@gmail.com>

        PR target/25967
        * config/i386/i386.c (ix86_function_naked): New function.
        (ix86_can_use_return_insn_p): Return false for naked functions.
        (ix86_expand_prologue): Skip prologue for naked functions.
        (ix86_expand_epilogue): Skip epilogue for naked functions
        and emit trap instruction.
        (ix86_warn_func_return): New function.
        (ix86_attribute_table): Add "naked" attribute specification.
        (TARGET_WARN_FUNC_RETURN): Define.
        * doc/extend.texi (x86 Function Attributes) <naked>: Document it.

2017-07-31  Martin Liska  <mliska@suse.cz>

        * gimple-pretty-print.c (dump_gimple_label): Never dump BB info.
        (dump_gimple_bb_header): Always dump BB info.
        (pp_cfg_jump): Do not append info about BB when dumping a jump.

2017-07-31  Martin Liska  <mliska@suse.cz>

        PR sanitize/81530
        * convert.c (convert_to_integer_1): Guard condition with flag_sanitize_p
        also with current_function_decl non-null equality.

2017-07-31  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/81604
        * ubsan.c (ubsan_type_descriptor): For UBSAN_PRINT_ARRAY don't
        change type to the element type, instead add eltype variable and
        use it where we are interested in the element type.

        PR tree-optimization/81603
        * ipa-polymorphic-call.c
        (ipa_polymorphic_call_context::ipa_polymorphic_call_context): Perform
        offset arithmetic in offset_int, bail out if the resulting bit offset
        doesn't fit into shwi.

2017-07-31  Martin Liska  <mliska@suse.cz>

        * gimplify.c (mostly_copy_tree_r): Remove Java specific hunk.
        (gimplify_save_expr): Fix comment.

2017-07-30  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/79793
        * config/i386/i386.c (ix86_function_arg): Update arguments for
        exception handler.
        (ix86_compute_frame_layout): Set the initial stack offset to
        INCOMING_FRAME_SP_OFFSET.  Update red-zone offset with
        INCOMING_FRAME_SP_OFFSET.
        (ix86_expand_epilogue): Don't pop the 'ERROR_CODE' off the
        stack before exception handler returns.
        * config/i386/i386.h (INCOMING_FRAME_SP_OFFSET): Add the
        the 'ERROR_CODE' for exception handler.

2017-07-30  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (ASM_PRINTF_EXTENSIONS): New macro.
        (ASM_OUTPUT_REG_PUSH): Rewrite with new operand modifiers.
        (ASM_OUTPUT_REG_POP): Ditto.
        * config/i386/i386.c (ix86_asm_output_function_label): Use fputs
        instead of asm_fprintf to output pure string.

2017-07-29  Jakub Jelinek  <jakub@redhat.com>

        * debug.h (struct gcc_debug_hooks): Add IMPLICIT argument
        to imported_module_or_decl hook.
        (debug_nothing_tree_tree_tree_bool): Remove.
        (debug_nothing_tree_tree_tree_bool_bool): New declaration.
        * debug.c (do_nothing_debug_hooks): Use
        debug_nothing_tree_tree_tree_bool_bool instead of
        debug_nothing_tree_tree_tree_bool.
        * vmsdbgout.c (vmsdbg_debug_hooks): Likewise.
        * dbxout.c (dbx_debug_hooks, xcoff_debug_hooks): Likewise.
        * sdbout.c (sdb_debug_hooks): Likewise.
        * dwarf2out.c (dwarf2_lineno_debug_hooks): Likewise.
        (gen_namespace_die): Add DW_AT_export_symbols attribute if
        langhook wants it.
        (dwarf2out_imported_module_or_decl): Add IMPLICIT argument,
        if true, -gdwarf-5 and decl will have DW_AT_export_symbols
        attribute, don't add anything.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * fold-const.c (fold_build1_stat_loc): Remove _stat from name.
        (fold_build2_stat_loc): Likewise.
        (fold_build3_stat_loc): Likewise.
        * fold-const.h (fold_build1, fold_build2, fold_build3): Adjust.
        (fold_build1_loc): Remove macro.
        (fold_build2_loc): Likewise.
        (fold_build3_loc): Likewise.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * gimple.c (gimple_build_debug_bind_stat): Remove _stat from name.
        (gimple_build_debug_bind_source_stat): Likewise.
        * gimple.h (gimple_build_debug_bind): Remove macro.
        (gimple_build_debug_bind_source): Likewise.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * bitmap.c (bitmap_alloc): Adjust.
        (bitmap_gc_alloc): Likewise.
        * bitmap.h (bitmap_initialize_stat): Remove _stat from name.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * bitmap.c (bitmap_obstack_alloc_stat): Rename to bitmap_alloc.
        (bitmap_gc_alloc_stat): Rename to bitmap_gc_alloc.
        * bitmap.h (bitmap_obstack_alloc_stat): Adjust prototype.
        (bitmap_gc_alloc_stat): Likewise.
        (BITMAP_ALLOC, BITMAP_GGC_ALLOC): Adjust.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * rtl.c (shallow_copy_rtx_stat): Remove _stat from name.
        * rtl.h (shallow_copy_rtx): Remove macro.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * emit-rtl.c (gen_raw_REG): Adjust.
        * gengenrtl.c (gendef): Likewise.
        * rtl.c (rtx_alloc_stat): Remove _stat from name.
        * rtl.h (rtx_alloc): Remove macro.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree.c (build_tree_list_vec_stat): Remove _stat from name.
        (build_tree_list_stat): Likewise.
        * tree.h (build_tree_list): Remove macro.
        (build_tree_list_vec): Likewise.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree.c (make_vector_stat): Remove _stat from name.
        (build_vector_stat): Likewise.
        * tree.h (make_vector_stat): Remove macro.
        (build_vector_stat): Likewise.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree.h (build_var_debug_value): Remove prototype.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree.c (tree_cons_stat): Remove _stat from name.
        * tree.h (tree_cons): Remove macro.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree.c (build_vl_exp_stat): Remove _stat from name.
        * tree.h (build_vl_exp): Remove macro.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree.c (build_decl_stat): Remove _stat from name.
        * tree.h (build_decl): Remove macro.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * gimple.c (gimple_build_with_ops_stat): Adjust.
        (gimple_alloc_stat): Remove _stat from name.
        * gimple.h (gimple_alloc): Remove macro.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree.c (make_tree_vec_stat): Remove _stat from name.
        (grow_tree_vec_stat): Likewise.
        * tree.h (make_tree_vec_stat): Adjust prototype.
        (grow_tree_vec_stat): Likewise.
        (make_tree_vec): Remove macro.
        (grow_tree_vec): Likewise.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * fold-const.c (fold_build1_stat_loc): Adjust.
        (fold_build2_stat_loc): Likewise.
        (fold_build3_stat_loc): Likewise.
        * tree.c (build0_stat): Remove _stat from name.
        (build1_stat): Likewise.
        (build2_stat): Likewise.
        (build3_stat): Likewise.
        (build4_stat): Likewise.
        (build5_stat): Likewise.
        * tree.h (build1_loc): Remove macro, and rename _stat function
        to this.
        (build2_loc): Likewise.
        (build3_loc): Likewise.
        (build4_loc): Likewise.
        (build5_loc): Likewise.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree.c (make_int_cst_stat): Remove _stat from name.
        * tree.h (make_int_cst_stat): Adjust prototype.
        (make_int_cst): Remove macro.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree.c (make_tre_binfo_stat): Remove _stat from name.
        * tree.h (make_tree_binfo_stat): Adjust prototype.
        (make_tree_binfo): Remove.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree.c (copy_node_stat): Rename to copy_node.
        (build_distinct_type_copy): Adjust.
        * tree.h (copy_node_stat): Adjust prototype.
        (copy_node): Remove macro.

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree.c (make_node_stat): rename to make_node.
        (build_tree_list_stat): Adjust.
        (build0_stat): Likewise.
        (build2_stat): Likewise.
        (build3_stat): Likewise.
        (build4_stat): Likewise.
        (build5_stat): Likewise.
        (build_decl_stat): Likewise.
        * tree.h (make_node_stat): Adjust prototype.
        (make_node): remove macro.

2017-07-28  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/ppc-auxv.h (PPC_FEATURE2_DARN): New define.
        (PPC_FEATURE2_SCV): Likewise.
        * config/rs6000/rs6000.c (cpu_supports_info): Use them.

2017-07-28  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64.c
        (aarch64_internal_mov_immediate): Add new special pattern.
        * config/aarch64/aarch64.md (*movdi_aarch64):
        Add reg/32bit const mov case.

2017-07-28  Tamar Christina  <tamar.christina@arm.com>
            Richard Sandiford <richard.sandiford@linaro.org>

        * config/aarch64/aarch64.md (mov<mode>): Generalize.
        (*movhf_aarch64, *movsf_aarch64, *movdf_aarch64):
        Add integer and movi cases.
        (movi-split-hf-df-sf split, fp16): New.
        (enabled): Added TARGET_FP_F16INST.
        * config/aarch64/iterators.md (GPF_HF): New.
        * config/aarch64/predicates.md (aarch64_reg_or_fp_float): New.

2017-07-28  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64.c
        (aarch64_simd_container_mode): Add prototype.
        (aarch64_expand_mov_immediate): Add HI support.
        (aarch64_reinterpret_float_as_int, aarch64_float_const_rtx_p: New.
        (aarch64_can_const_movi_rtx_p): New.
        (aarch64_preferred_reload_class):
        Remove restrictions of using FP registers for certain SIMD operations.
        (aarch64_rtx_costs): Added new cost for CONST_DOUBLE moves.
        (aarch64_valid_floating_const): Add integer move validation.
        (aarch64_simd_imm_scalar_p): Remove.
        (aarch64_output_scalar_simd_mov_immediate): Generalize function.
        (aarch64_legitimate_constant_p): Expand list of supported cases.
        * config/aarch64/aarch64-protos.h
        (aarch64_float_const_rtx_p, aarch64_can_const_movi_rtx_p): New.
        (aarch64_reinterpret_float_as_int): New.
        (aarch64_simd_imm_scalar_p): Remove.
        * config/aarch64/constraints.md (Uvi): New.
        (Dd): Split into Ds and new Dd.
        * config/aarch64/aarch64.md (*movsi_aarch64):
        Add SIMD mov case.
        (*movdi_aarch64): Add SIMD mov case.

2017-07-28  Bin Cheng  <bin.cheng@arm.com>

        * tree-predcom.c: (struct chain): Handle store-store chain in which
        stores for elimination only store loop invariant values.
        (execute_pred_commoning_chain): Ditto.
        (prepare_initializers_chain_store_elim): Ditto.
        (prepare_finalizers): Ditto.
        (is_inv_store_elimination_chain): New function.
        (initialize_root_vars_store_elim_1): New function.

2017-07-28  Bin Cheng  <bin.cheng@arm.com>

        * tree-predcom.c: Revise general description of the pass.
        (enum chain_type): New enum type for store elimination.
        (struct chain): New field supporting store elimination.
        (struct component): Ditto.
        (dump_chain): Dump store-stores chain.
        (release_chain): Release resources.
        (split_data_refs_to_components): Compute and create component
        contains only stores for elimination.
        (get_chain_last_ref_at): New function.
        (make_invariant_chain): Initialization.
        (make_rooted_chain): Specify chain type in parameter and record it.
        (add_looparound_copies): Skip for store-stores chain.
        (determine_roots_comp): Compute type of chain and pass it to
        make_rooted_chain.
        (initialize_root_vars_store_elim_2): New function.
        (finalize_eliminated_stores): New function.
        (remove_stmt): Handle store for elimination.
        (execute_pred_commoning_chain): Execute predictive commoning on
        store-store chains.
        (determine_unroll_factor): Skip unroll for store-stores chain.
        (prepare_initializers_chain_store_elim): New function.
        (prepare_initializers_chain): Hanlde store-store chain.
        (prepare_finalizers_chain, prepare_finalizers): New function.
        (tree_predictive_commoning_loop): Return integer value indicating
        if loop is unrolled or lcssa form is corrupted.
        (tree_predictive_commoning): Rewrite for lcssa form if necessary.

2017-07-28  Bin Cheng  <bin.cheng@arm.com>

        * tree-predcom.c (initialize_root): Delete.
        (execute_pred_commoning_chain): Initialize root vars and replace
        reference of non-combined chain directly, rather than call above
        function.

2017-07-28  Bin Cheng  <bin.cheng@arm.com>

        * tree-predcom.c (ref_at_iteration): Add parameter NITERS.  Compute
        memory reference to DR at (NITERS + ITERS)-th iteration of loop.

2017-07-28  Bin Cheng  <bin.cheng@arm.com>

        * tree-predcom.c (struct chain): New field init_seq.
        (release_chain): Release init_seq.
        (prepare_initializers_chain): Record intialization stmts in above
        field.
        (insert_init_seqs): New function.
        (tree_predictive_commoning_loop): Call insert_init_seqs.

2017-07-28  Bin Cheng  <bin.cheng@arm.com>

        * tree-predcom.c (determine_roots_comp): Skip trivial components.

2017-07-28  Richard Biener  <rguenther@suse.de>

        * match.pd: Remove superfluous :c.
        * genmatch.c (simplify::id): Add member.
        (lower_commutative, lower_opt_convert, lower_cond, lower_for):
        Copy id.
        (current_id): New global.
        (dt_node::parent): Move from ...
        (dt_operand::parent): ... here.  Add for_id member.
        (is_a_helper <dt_operand *>::test): DT_TRUE is also a dt_operand.
        (decision_tree::find_node): Relax order requirement when
        merging DT_TRUE nodes to ones inbetween the current simplify
        and the one we try to merge with.  Add diagnostic whenever
        we need to enforce pattern order by not merging.
        (decision_tree::insert): Set current_id.
        (decision_tree::print_node): Dump parent node and for_id.
        (parser::last_id): Add member.
        (parser::push_simplify): Assign unique id.
        (parser::parser): Initialize last_id.

2017-07-28  Martin Liska  <mliska@suse.cz>

        PR sanitizer/81340
        * sanopt.c (sanitize_rewrite_addressable_params): Set VALUE_EXPR after
        gimple_build_debug_bind.

2017-07-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81502
        * match.pd: Add pattern combining BIT_INSERT_EXPR with
        BIT_FIELD_REF.
        * tree-cfg.c (verify_expr): Verify types of BIT_FIELD_REF
        size/pos operands.
        (verify_gimple_assign_ternary): Likewise for BIT_INSERT_EXPR pos.
        * gimple-fold.c (maybe_canonicalize_mem_ref_addr): Use bitsizetype
        for BIT_FIELD_REF args.
        * fold-const.c (make_bit_field_ref): Likewise.
        * tree-vect-stmts.c (vectorizable_simd_clone_call): Likewise.

2017-07-28  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/80998
        * sanopt.c (pass_sanopt::execute): Handle IFN_UBSAN_PTR.
        * tree-ssa-alias.c (call_may_clobber_ref_p_1): Likewise.
        * flag-types.h (enum sanitize_code): Add SANITIZER_POINTER_OVERFLOW.
        Or it into SANITIZER_UNDEFINED.
        * ubsan.c: Include gimple-fold.h and varasm.h.
        (ubsan_expand_ptr_ifn): New function.
        (instrument_pointer_overflow): New function.
        (maybe_instrument_pointer_overflow): New function.
        (instrument_object_size): Formatting fix.
        (pass_ubsan::execute): Call instrument_pointer_overflow
        and maybe_instrument_pointer_overflow.
        * internal-fn.c (expand_UBSAN_PTR): New function.
        * ubsan.h (ubsan_expand_ptr_ifn): Declare.
        * sanitizer.def (__ubsan_handle_pointer_overflow,
        __ubsan_handle_pointer_overflow_abort): New builtins.
        * tree-ssa-tail-merge.c (merge_stmts_p): Handle IFN_UBSAN_PTR.
        * internal-fn.def (UBSAN_PTR): New internal function.
        * opts.c (sanitizer_opts): Add pointer-overflow.
        * lto-streamer-in.c (input_function): Handle IFN_UBSAN_PTR.
        * fold-const.c (build_range_check): Compute pointer range check in
        integral type if pointer arithmetics would be needed.  Formatting
        fixes.

2017-07-28  Martin Liska  <mliska@suse.cz>

        PR sanitizer/81460
        * sanopt.c (sanitize_rewrite_addressable_params): Do not rewrite
        parameters that are of a variable-length.

2017-07-28  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * config.gcc (powerpc-*-rtems*): Remove rs6000/eabi.h.  Add
        rs6000/biarch64.h.
        * config/rs6000/rtems.h (ASM_DECLARE_FUNCTION_SIZE): New macro.
        (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Likewise.
        (CRT_CALL_STATIC_FUNCTION): Likewise.
        (ASM_DEFAULT_SPEC): New define.
        (ASM_SPEC32): Likewise.
        (ASM_SPEC64): Likewise.
        (ASM_SPEC_COMMON): Likewise.
        (ASM_SPEC): Likewise.
        (INVALID_64BIT): Likewise.
        (LINK_OS_DEFAULT_SPEC): Likewise.
        (LINK_OS_SPEC32): Likewise.
        (LINK_OS_SPEC64): Likewise.
        (POWERPC_LINUX): Likewise.
        (PTRDIFF_TYPE): Likewise.
        (RESTORE_FP_PREFIX): Likewise.
        (RESTORE_FP_SUFFIX): Likewise.
        (SAVE_FP_PREFIX): Likewise.
        (SAVE_FP_SUFFIX): Likewise.
        (SIZE_TYPE): Likewise.
        (SUBSUBTARGET_OVERRIDE_OPTIONS): Likewise.
        (TARGET_64BIT): Likewise.
        (TARGET_64BIT): Likewise.
        (TARGET_AIX): Likewise.
        (WCHAR_TYPE_SIZE): Likewise.
        (WCHAR_TYPE): Undefine.
        (TARGET_OS_CPP_BUILTINS): Add 64-bit PowerPC defines.
        (CPP_OS_DEFAULT_SPEC): Use previous CPP_OS_RTEMS_SPEC.
        (CPP_OS_RTEMS_SPEC): Delete.
        (SUBSUBTARGET_EXTRA_SPECS): Remove cpp_os_rtems.  Add
        asm_spec_common, asm_spec32, asm_spec64, link_os_spec32, and
        link_os_spec64.
        * config/rs6000/t-rtems: Add mcpu=e6500/m64 multilibs.

2017-07-28  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/81578
        * tree-parloops.c (build_new_reduction): Bail out if
        reduction_code isn't one of the standard OpenMP reductions.
        Move the details printing after that decision.

2017-07-27  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/predicates.md (volatile_mem_operand): Remove code
        related to reload_in_progress.
        (splat_input_operand): Likewise.
        * config/rs6000/rs6000-protos.h (rs6000_secondary_memory_needed_rtx):
        Delete prototype.
        * config/rs6000/rs6000.c (machine_function): Remove sdmode_stack_slot
        field.
        (TARGET_EXPAND_TO_RTL_HOOK): Delete.
        (TARGET_INSTANTIATE_DECLS): Likewise.
        (legitimate_indexed_address_p): Delete reload_in_progress code.
        (rs6000_debug_legitimate_address_p): Likewise.
        (rs6000_eliminate_indexed_memrefs): Likewise.
        (rs6000_emit_le_vsx_store): Likewise.
        (rs6000_emit_move_si_sf_subreg): Likewise.
        (rs6000_emit_move): Likewise.
        (register_to_reg_type): Likewise.
        (rs6000_pre_atomic_barrier): Likewise.
        (rs6000_machopic_legitimize_pic_address): Likewise.
        (rs6000_allocate_stack_temp): Likewise.
        (rs6000_address_for_fpconvert): Likewise.
        (rs6000_address_for_altivec): Likewise.
        (rs6000_secondary_memory_needed_rtx): Delete function.
        (rs6000_check_sdmode): Likewise.
        (rs6000_alloc_sdmode_stack_slot): Likewise.
        (rs6000_instantiate_decls): Likewise.
        * config/rs6000/rs6000.h (SECONDARY_MEMORY_NEEDED_RTX): Delete.
        * config/rs6000/rs6000.md (splitter for *movsi_got_internal):
        Delete reload_in_progress.
        (*vec_reload_and_plus_<mptrsize>): Likewise.
        * config/rs6000/vsx.md (vsx_mul_v2di): Likewise.
        (vsx_div_v2di): Likewise.
        (vsx_udiv_v2di): Likewise.

2017-07-27  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/rs6000.opt (mlra): Replace with stub.
        * config/rs6000/rs6000-cpus.def (POWERPC_MASKS): Delete OPTION_MASK_LRA.
        * config/rs6000/rs6000.c (TARGET_LRA_P): Delete.
        (rs6000_debug_reg_global): Delete print of LRA status.
        (rs6000_option_override_internal): Delete dead LRA related code.
        (rs6000_lra_p): Delete function.
        * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mlra.

2017-07-27  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * config.gcc (riscv*-*-elf*): Add (riscv*-*-rtems*).
        * config/riscv/rtems.h: New file.

2017-07-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
            Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64.md
        (define_split for and<mode>3nr_compare): Move
        non aarch64_logical_operand to a register.
        (define_split for and_<SHIFT:optab><mode>3nr_compare0): Move non
        register immediate operand to a register.
        * config/aarch64/predicates.md (aarch64_mov_imm_operand): New.

2017-07-27  Peter Bergner  <bergner@vnet.ibm.com>

        PR middle-end/81564
        * tree-cfg.c (group_case_labels_stmt): Handle already deleted blocks.

2017-07-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81573
        PR tree-optimization/81494
        * tree-vect-loop.c (vect_create_epilog_for_reduction): Handle
        multi defuse cycle case.

2017-07-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81571
        * tree-vect-slp.c (vect_build_slp_tree): Properly verify reduction
        PHIs.

2017-07-27  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.c (sparc_option_override): Set MASK_FSMULD flag
        earlier and only if MASK_FPU is set.  Adjust formatting.

2017-07-27  Martin Liska  <mliska@suse.cz>

        * opt-functions.awk: Add validation of value of Init.
        * optc-gen.awk: Pass new argument.

2017-07-27  Martin Liska  <mliska@suse.cz>

        * auto-profile.c (autofdo_source_profile::update_inlined_ind_target):
        Fix wrong condition.

2017-07-27  Martin Liska  <mliska@suse.cz>

        * auto-profile.c (afdo_annotate_cfg): Assign zero counts to
        BBs and edges seen by autoFDO.

2017-07-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81502
        * tree-ssa.c (non_rewritable_lvalue_p): Handle BIT_INSERT_EXPR
        with incompatible but same sized type.
        (execute_update_addresses_taken): Likewise.

2017-07-27  James Greenhalgh  <james.greenhalgh@arm.com>

        * tree-ssa-loop-ch.c (pass_ch::process_loop_p): Guard on
        flag_tree_loop_vectorize rather than flag_tree_vectorize.

2017-07-27  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/81534
        * config/s390/s390.md ("*atomic_compare_and_swap<mode>_1")
        ("*atomic_compare_and_swapdi_2", "*atomic_compare_and_swapsi_3"):
        Change s_operand to memory_operand.

2017-07-27  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/rs6000/rs6000-protos.h (rs6000_emit_le_vsx_permute): Declare.
        * config/rs6000/rs6000.c (rs6000_gen_le_vsx_permute): Replace with...
        (rs6000_emit_le_vsx_permute): ...this.  Take the destination as input.
        Emit instructions rather than returning an expression.  Handle TFmode
        and KFmode by casting to TImode.
        (rs6000_emit_le_vsx_load): Update to use rs6000_emit_le_vsx_permute.
        (rs6000_emit_le_vsx_store): Likewise.
        * config/rs6000/vsx.md (VSX_TI): New iterator.
        (*vsx_le_permute_<mode>): Use it instead of VSX_LE_128.
        (*vsx_le_undo_permute_<mode>): Likewise.
        (*vsx_le_perm_load_<mode>): Use rs6000_emit_le_vsx_permute to
        emit the split sequence.
        (*vsx_le_perm_store_<mode>): Likewise.

2017-07-27  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/81555
        PR tree-optimization/81556
        * tree-ssa-reassoc.c (rewrite_expr_tree): Add NEXT_CHANGED argument,
        if true, force CHANGED for the recursive invocation.
        (reassociate_bb): Remember original length of ops array, pass
        len != orig_len as NEXT_CHANGED in rewrite_expr_tree call.

        * attribs.c (decl_attributes): Imply noinline, noclone and no_icf
        attributes for noipa attribute.  For naked attribute use
        lookup_attribute first before lookup_attribute_spec.
        * final.c (rest_of_handle_final): Disable IPA RA for functions with
        noipa attribute.
        * ipa-visibility.c (non_local_p): Fix comment typos.  Return true
        for functions with noipa attribute.
        (cgraph_externally_visible_p): Return true for functions with noipa
        attribute.
        * cgraph.c (cgraph_node::get_availability): Return AVAIL_INTERPOSABLE
        for functions with noipa attribute.
        * doc/extend.texi: Document noipa function attribute.
        * tree-ssa-structalias.c (refered_from_nonlocal_fn): Set *nonlocal_p
        also for functions with noipa attribute.
        (ipa_pta_execute): Set nonlocal_p also for nodes with noipa attribute.

2017-07-26  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64.c (thunderx_vector_cost): Decrease cost of
        vec_unalign_load_cost and vec_unalign_store_cost.

2017-07-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-cpus.def (ISA_2_7_MASKS_SERVER): Delete
        -mvsx-small-integer option.
        (ISA_3_0_MASKS_IEEE): Likewise.
        (OTHER_VSX_VECTOR_MASKS): Likewise.
        (POWERPC_MASKS): Likewise.
        * config/rs6000/rs6000.opt (-mvsx-small-integer): Likewise.
        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Simplify
        code, only testing for DImode being allowed in non-VSX floating
        point registers.
        (rs6000_init_hard_regno_mode_ok): Change TARGET_VSX_SMALL_INTEGER
        to TARGET_P8_VECTOR test.  Remove redundant VSX test inside of
        another VSX test.
        (rs6000_option_override_internal): Delete -mvsx-small-integer.
        (rs6000_expand_vector_set): Change TARGET_VSX_SMALL_INTEGER to
        TARGET_P8_VECTOR test.
        (rs6000_secondary_reload_simple_move): Likewise.
        (rs6000_preferred_reload_class): Delete TARGET_VSX_SMALL_INTEGER,
        since TARGET_P9_VECTOR was already tested.
        (rs6000_opt_masks): Remove -mvsx-small-integer.
        * config/rs6000/vsx.md (vsx_extract_<mode>): Delete
        TARGET_VSX_SMALL_INTEGER, since a test for TARGET_P9_VECTOR was
        used.
        (vsx_extract_<mode>_p9): Delete TARGET_VSX_SMALL_INTEGER, since a
        test for TARGET_VEXTRACTUB was used, and that uses
        TARGET_P9_VECTOR.
        (p9 extract splitter): Likewise.
        (vsx_extract_<mode>_di_p9): Likewise.
        (vsx_extract_<mode>_store_p9): Likewise.
        (vsx_extract_si): Delete TARGET_VSX_SMALL_INTEGER, since a test
        for TARGET_P9_VECTOR was used.  Delete code that is now dead with
        the elimination of TARGET_VSX_SMALL_INTEGER.
        (vsx_extract_<mode>_p8): Likewise.
        (vsx_ext_<VSX_EXTRACT_I:VS_scalar>_fl_<FL_CONV:mode>): Likewise.
        (vsx_ext_<VSX_EXTRACT_I:VS_scalar>_ufl_<FL_CONV:mode>): Likewise.
        (vsx_set_<mode>_p9): Likewise.
        (vsx_set_v4sf_p9): Likewise.
        (vsx_set_v4sf_p9_zero): Likewise.
        (vsx_insert_extract_v4sf_p9): Likewise.
        (vsx_insert_extract_v4sf_p9_2): Likewise.
        * config/rs6000/rs6000.md (sign extend splitter): Change
        TARGET_VSX_SMALL_INTEGER to TARGET_P8_VECTOR test.
        (floatsi<mode>2_lfiwax_mem): Likewise.
        (floatunssi<mode>2_lfiwzx_mem): Likewise.
        (float<QHI:mode><FP_ISA3:mode>2): Delete TARGET_VSX_SMALL_INTEGER,
        since a test for TARGET_P9_VECTOR was used.
        (float<QHI:mode><FP_ISA3:mode>2_internal): Likewise.
        (floatuns<QHI:mode><FP_ISA3:mode>2): Likewise.
        (floatuns<QHI:mode><FP_ISA3:mode>2_internal): Likewise.
        (fix_trunc<mode>si2): Change TARGET_VSX_SMALL_INTEGER to
        TARGET_P8_VECTOR test.
        (fix_trunc<mode>si2_stfiwx): Likewise.
        (fix_trunc<mode>si2_internal): Likewise.
        (fix_trunc<SFDF:mode><QHI:mode>2): Delete
        TARGET_VSX_SMALL_INTEGER, since a test for TARGET_P9_VECTOR was
        used.
        (fix_trunc<SFDF:mode><QHI:mode>2_internal): Likewise.
        (fixuns_trunc<mode>si2): Change TARGET_VSX_SMALL_INTEGER to
        TARGET_P8_VECTOR test.
        (fixuns_trunc<mode>si2_stfiwx): Likewise.
        (fixuns_trunc<SFDF:mode><QHI:mode>2): Delete
        TARGET_VSX_SMALL_INTEGER, since a test for TARGET_P9_VECTOR was
        used.
        (fixuns_trunc<SFDF:mode><QHI:mode>2_internal): Likewise.
        (fctiw<u>z_<mode>_smallint): Delete TARGET_VSX_SMALL_INTEGER,
        since a test for TARGET_P9_VECTOR was used.
        (splitter for loading small constants): Likewise.

2017-07-26  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64.c (thunderx_vector_cost): Fix
        vec_fp_stmt_cost.

2017-07-26  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/81563
        * config/i386/i386.c (sp_valid_at): Properly check CFA offset.
        (fp_valid_at): Likewise.

2017-07-26  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64.c (cortexa57_addrcost_table): Remove.
        (qdf24xx_addrcost_table): Likewise.
        (cortexa57_tunings): Update to use generic_branch_cost.
        (cortexa72_tunings): Likewise.
        (cortexa73_tunings): Likewise.
        (qdf24xx_tunings): Likewise.

2017-07-26  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64.c (cortexa57_branch_cost): Remove.
        (thunderx2t99_branch_cost): Likewise.
        (cortexa35_tunings): Update to use generic_branch_cost.
        (cortexa53_tunings): Likewise.
        (cortexa57_tunings): Likewise.
        (cortexa72_tunings): Likewise.
        (cortexa73_tunings): Likewise.
        (thunderx2t99_tunings): Likewise.

2017-07-26  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * config/sparc/sparc.c (dump_target_flag_bits): Dump MASK_FSMULD.
        (sparc_option_override): Honour MASK_FSMULD.
        * config/sparc/sparc.h (MASK_FEATURES): Add MASK_FSMULD.
        * config/sparc/sparc.md (muldf3_extend): Use TARGET_FSMULD.
        * config/sparc/sparc.opt (mfsmuld): New option.
        * doc/invoke.texi (mfsmuld): Document option.

2017-07-26  Marek Polacek  <polacek@redhat.com>

        PR middle-end/70992
        * tree.c (build2_stat): Don't set TREE_CONSTANT on divisions by zero.

2017-07-26  Richard Biener  <rguenther@suse.de>

        * gimple-match-head.c (do_valueize): Return OP if valueize
        returns NULL_TREE.
        (get_def): New helper to get at the def stmt of a SSA name
        if valueize allows.
        * genmatch.c (dt_node::gen_kids_1): Use get_def instead of
        do_valueize to get at the def stmt.
        (dt_operand::gen_gimple_expr): Simplify do_valueize calls.

2017-07-26  Wilco Dijkstra  <wdijkstr@arm.com>

        PR middle-end/46932
        * auto-inc-dec.c (parse_add_or_inc): Block autoinc on sfp.

2017-07-26  Martin Liska  <mliska@suse.cz>

        PR sanitize/81186
        * function.c (expand_function_start): Make expansion of
        nonlocal_goto_save_area after parm_birth_insn.

2017-07-26  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * config/sparc/sparc.c (sparc_option_override): Remove MASK_FPU
        from all CPU target flags enable members.

2017-07-26  Richard Biener  <rguenther@suse.de>

        * genmatch.c (dt_simplify::gen): Make iterator vars const.
        (decision_tree::gen): Make 'type' const.
        (write_predicate): Likewise.

2017-07-24  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok):
        Eliminate TARGET_UPPER_REGS_{DF,DI,SF} usage.
        (rs6000_option_override_internal): Likewise.
        (rs6000_expand_vector_set): Likewise.
        * config/rs6000/rs6000.h (TARGET_UPPER_REGS_DF): Delete.
        (TARGET_UPPER_REGS_SF): Likewise.
        (TARGET_UPPER_REGS_DI): Likewise.
        (TARGET_VEXTRACTUB): Eliminate TARGET_UPPER_REGS_{DF,DI,SF}.
        (TARGET_DIRECT_MOVE_64BIT): Likewise.
        * config/rs6000/rs6000.md (ALTIVEC_DFORM): Likewise.
        (float<QHI:mode><FP_ISA3:mode>2_internal): Likewise.
        (Splitters for DI constants in Altivec registers): Likewise.
        * config/rs6000/vsx.md (vsx_set_<mode>_p9): Likewise.
        (vsx_set_v4sf_p9): Likewise.
        (vsx_set_v4sf_p9_zero): Likewise.
        (vsx_insert_extract_v4sf_p9): Likewise.
        (vsx_insert_extract_v4sf_p9_2): Likewise.

2017-07-25  Carl Love  <cel@us.ibm.com>

        * doc/extend.texi: Update the built-in documentation file for the
        existing built-in functions
        vector signed char vec_cnttz (vector signed char);
        vector unsigned char vec_cnttz (vector unsigned char);
        vector signed short vec_cnttz (vector signed short);
        vector unsigned short vec_cnttz (vector unsigned short);
        vector signed int vec_cnttz (vector signed int);
        vector unsigned int vec_cnttz (vector unsigned int);
        vector signed long long vec_cnttz (vector signed long long);
        vector unsigned long long vec_cnttz (vector unsigned long long);

2017-07-25  Andrew Pinski  <apinski@cavium.com>

        * tree-ssa-uninit.c (warn_uninitialized_vars): Don't warn about memory
        accesses where the use is for the first operand of a BIT_INSERT.

2017-07-25  Jim Wilson  <jim.wilson@linaro.org>

        PR bootstrap/81521
        * config/i386/winnt-cxx.c (i386_pe_adjust_class_at_definition): Look
        for FUNCTION_DECLs in TYPE_FIELDS rather than TYPE_METHODS.

2017-07-25  Jim Wilson  <jim.wilson@linaro.org>

        * config/i386/gstabs.h: Delete.
        * config/i386/openbsd.h, config/i386/t-openbsd: Likewise.

2017-07-25  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_decompose_address): Do not check for
        register RTX when looking at index_reg or base_reg.
        * config/i386/i386.h (INCOMING_RETURN_ADDR_RTX): Use stack_pointer_rtx.

2017-07-25  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple.c (gimple_assign_set_rhs_with_ops): Do not ask gsi_replace
        to update EH info here.

2017-07-25  Alexander Monakov  <amonakov@ispras.ru>

        * match.pd ((X * CST1) * CST2): Simplify to X * (CST1 * CST2).

2017-07-25  Alexander Monakov  <amonakov@ispras.ru>

        * match.pd ((X * CST) * Y): Reassociate to (X * Y) * CST.

2017-07-25  Torsten Duwe  <duwe@suse.de>

        * common.opt: Introduce -fpatchable-function-entry
        command line option, and its variables function_entry_patch_area_size
        and function_entry_patch_area_start.
        * opts.c (common_handle_option): Add -fpatchable_function_entry_ case,
        including a two-value parser.
        * target.def (print_patchable_function_entry): New target hook.
        * targhooks.h (default_print_patchable_function_entry): New function.
        * targhooks.c (default_print_patchable_function_entry): Likewise.
        * toplev.c (process_options): Switch off IPA-RA if
        patchable function entries are being generated.
        * varasm.c (assemble_start_function): Look at the
        patchable-function-entry command line switch and current
        function attributes and maybe generate NOP instructions by
        calling the print_patchable_function_entry hook.
        * doc/extend.texi: Document patchable_function_entry attribute.
        * doc/invoke.texi: Document -fpatchable_function_entry
        command line option.
        * doc/tm.texi.in (TARGET_ASM_PRINT_PATCHABLE_FUNCTION_ENTRY):
        New target hook.
        * doc/tm.texi: Re-generate.

2017-07-25  Jakub Jelinek  <jakub@redhat.com>

        PR target/81532
        * config/i386/constraints.md (Yd, Ye): Use ALL_SSE_REGS for
        TARGET_AVX512DQ rather than TARGET_AVX512BW.

2017-07-25  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/parsecpu.awk (all_cores): Remove duplicates.

2017-07-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81455
        * tree-ssa-loop-unswitch.c (find_loop_guard): Make sure to
        not walk in cycles when looking for guards.

2017-07-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81529
        * tree-vect-stmts.c (process_use): Disregard live induction PHIs
        when optimizing backedge uses.

2017-07-25  David Edelsohn  <dje.gcc@gmail.com>

        * dwarf2asm.c (dw2_asm_output_nstring): Encode double quote
        character for AIX.
        * dwarf2out.c (output_macinfo): Copy debug_line_section_label
        to dl_section_ref.  On AIX, append an expression to subtract
        the size of the section length to dl_section_ref.

2017-07-25  Segher Boessenkool  <segher@kernel.crashing.org>

        * configure.ac: If any of the config.* scripts fail, exit 1.
        * configure: Regenerate.

2017-07-25  Richard Biener  <rguenther@suse.de>

        PR middle-end/81546
        * tree-ssa-operands.c (verify_imm_links): Remove cap on number
        of immediate uses, be more verbose on errors.

2017-07-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81510
        * tree-vect-loop.c (vect_is_simple_reduction): When the
        reduction stmt is not inside the loop bail out.

2017-07-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81303
        * tree-vect-loop-manip.c (vect_loop_versioning): Build
        profitability check against LOOP_VINFO_NITERSM1.

2017-07-25  Alexander Monakov  <amonakov@ispras.ru>

        * domwalk.c (cmp_bb_postorder): Simplify.
        (sort_bbs_postorder): New function.  Use it...
        (dom_walker::walk): ...here to optimize common cases.

2017-07-25  Martin Liska  <mliska@suse.cz>

        PR ipa/81520
        * ipa-visibility.c (function_and_variable_visibility): Make the
        redirection just on target that supports aliasing.
        Fix GNU coding style.

2017-07-25  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        PR libgcc/61152
        * config/aarch64/rtems.h: Add GCC Runtime Library Exception.
        Format changes.
        * config/arm/rtems.h: Likewise.
        * config/bfin/rtems.h: Likewise.
        * config/i386/rtemself.h: Likewise.
        * config/lm32/rtems.h: Likewise.
        * config/m32c/rtems.h: Likewise.
        * config/m68k/rtemself.h: Likewise.
        * config/microblaze/rtems.h: Likewise.
        * config/mips/rtems.h: Likewise.
        * config/moxie/rtems.h: Likewise.
        * config/nios2/rtems.h: Likewise.
        * config/powerpcspe/rtems.h: Likewise.
        * config/rs6000/rtems.h: Likewise.
        * config/rtems.h: Likewise.
        * config/sh/rtems.h: Likewise.
        * config/sh/rtemself.h: Likewise.
        * config/sparc/rtemself.h: Likewise.

2017-07-25  Georg-Johann Lay  <avr@gjlay.de>

        PR 81487
        * hsa-brig.c (brig_init): Use xasprintf instead of asprintf.
        * gimple-pretty-print.c (dump_profile, dump_probability): Same.
        * tree-ssa-structalias.c (alias_get_name): Same.

2017-07-25  Bin Cheng  <bin.cheng@arm.com>

        PR target/81414
        * config/aarch64/cortex-a57-fma-steering.c (analyze): Skip fmul/fmac
        instructions if no du chain is found.

2017-07-25  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-log.c (avr_log_vadump) ['T']: Print NULL-TREE.

2017-07-25  Richard Biener  <rguenther@suse.de>

        PR middle-end/81505
        * fold-const.c (fold_negate_const): TREE_OVERFLOW should be
        sticky.

2017-07-24  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-cpus.def (ISA_2_6_MASKS_SERVER): Delete
        upper-regs options.
        (ISA_2_7_MASKS_SERVER): Likewise.
        (ISA_3_0_MASKS_IEEE): Likewise.
        (OTHER_P8_VECTOR_MASKS): Likewise.
        (OTHER_VSX_VECTOR_MASKS): Likewise.
        (POWERPC_MASKS): Likewise.
        (power7 cpu): Use ISA_2_6_MASKS_SERVER instead of using a
        duplicate list of options.
        * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Remove
        explicit -mupper-regs options.
        * config/rs6000/rs6000.opt (-mvsx-scalar-memory): Delete
        -mupper-regs* options.  Delete -mvsx-scalar-memory, which was an
        alias for -mupper-regs-df.
        * config/rs6000/rs6000.c (rs6000_setup_reg_addr_masks): Likewise.
        (rs6000_init_hard_regno_mode_ok): Likewise.
        (rs6000_option_override_internal): Likewise.
        (rs6000_opt_masks): Likewise.
        * config/rs6000/rs6000.h (TARGET_UPPER_REGS_DF): Define upper regs
        options in terms of whether -mvsx or -mpower8-vector was used.
        (TARGET_UPPER_REGS_DI): Likewise.
        (TARGET_UPPER_REGS_SF): Likewise.
        * doc/invoke.texi (RS/6000 and PowerPC Options): Delete the
        -mupper-regs-* options.

2017-07-24  Segher Boessenkool  <segher@kernel.crashing.org>

        * passes.c (emergency_dump_function): Print some empty lines and a
        header before the RTL dump.

2017-07-24  Segher Boessenkool  <segher@kernel.crashing.org>

        * cfgrtl.c (rtl_dump_bb): Don't call NEXT_INSN on NULL.

2017-07-24  Wilco Dijkstra  <wdijkstr@arm.com>

        PR target/79041
        * config/aarch64/aarch64.c (aarch64_classify_symbol):
        Avoid SYMBOL_SMALL_ABSOLUTE for literals with pc-relative literals.

2017-07-24  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c.c: Add support for built-in functions
        vector float vec_extract_fp32_from_shorth (vector unsigned short);
        vector float vec_extract_fp32_from_shortl (vector unsigned short);
        * config/rs6000/altivec.h (vec_extract_fp_from_shorth,
        vec_extract_fp_from_shortl): Add defines for the two builtins.
        * config/rs6000/rs6000-builtin.def (VEXTRACT_FP_FROM_SHORTH,
        VEXTRACT_FP_FROM_SHORTL): Add BU_P9V_OVERLOAD_1 and BU_P9V_VSX_1
        new builtins.
        * config/rs6000/vsx.md vsx_xvcvhpsp): Add define_insn.
        (vextract_fp_from_shorth, vextract_fp_from_shortl): Add define_expands.
        * doc/extend.texi: Update the built-in documentation file for the
        new built-in function.

2017-07-24  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/81521
        * tree.def: Remove TYPE_METHODS documentation, adjust TYPE_FIELDS
        documentation.
        * doc/generic.texi: Likewise.
        * config/i386/winnt-cxx.c (i386_pe_adjust_class_at_definition): Look
        for FUNCTION_DECLs in TYPE_FIELDS rather than TYPE_METHODS.

2017-07-24  Jackson Woodruff  <jackson.woodruff@arm.com>

        * config/aarch64/aarch64-simd.md (aarch64_mla_elt_merge<mode>): New.
        (aarch64_mls_elt_merge<mode>): Likewise.

2017-07-23  Krister Walfridsson  <krister.walfridsson@gmail.com>

        * config.gcc (*-*-netbsd*): Remove check for NetBSD versions not
        having __cxa_atexit.

2017-07-23  Michael Collison  <michael.collison@arm.com>

        * config/arm/arm.c (arm_option_override): Deprecate
        use of -mstructure-size-boundary.
        * config/arm/arm.opt: Deprecate -mstructure-size-boundary.
        * doc/invoke.texi: Deprecate -mstructure-size-boundary.

2017-07-23  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/80695
        * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost):
        Reduce cost estimate for direct moves.

2017-07-23  Uros Bizjak  <ubizjak@gmail.com>

        PR target/80569
        * config/i386/i386.c (ix86_option_override_internal): Disable
        BMI, BMI2 and TBM instructions for -m16.

2017-07-21  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        ALTIVEC_BUILTIN_VMULESW, ALTIVEC_BUILTIN_VMULEUW,
        ALTIVEC_BUILTIN_VMULOSW, ALTIVEC_BUILTIN_VMULOUW entries.
        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin,
        builtin_function_type): Add ALTIVEC_BUILTIN_* case statements.
        * config/rs6000/altivec.md (MVULEUW, VMULESW, VMULOUW,
        VMULOSW): New enum "unspec" values.
        (altivec_vmuleuw, altivec_vmulesw, altivec_vmulouw,
        altivec_vmulosw): New patterns.
        * config/rs6000/rs6000-builtin.def (VMLEUW, VMULESW, VMULOUW,
        VMULOSW): Add definitions.

2017-07-21  Jim Wilson  <jim.wilson@linaro.org>

        * config/aarch64/aarch64-cores.def (falkor): Add AARCH64_FL_RDMA.
        (qdf24xx): Likewise.
        * config/aarch64/aarch64-options-extensions.def (rdma); New.
        * config/aarch64/aarch64.h (AARCH64_FL_RDMA): New.
        (AARCH64_FL_V8_1): Renumber.
        (AARCH64_FL_FOR_ARCH8_1): Add AARCH64_FL_RDMA.
        (AARCH64_ISA_RDMA): Use AARCH64_FL_RDMA.
        * config/aarch64/arm_neon.h: Use +rdma instead of arch=armv8.1-a.
        * doc/invoke.texi (AArch64 Options): Mention +rmda in -march docs.  Add
        rdma to feature modifiers list.

2017-07-21  Yury Gribov  <tetra2005@gmail.com>

        PR middle-end/56727
        * ipa-visibility (function_and_variable_visibility): Convert
        recursive PLT call to direct call if appropriate.

2017-07-21  Andrew Pinski  <apinski@cavium.com>

        * tree-ssa-sccvn.c (vn_nary_op_eq): Check BIT_INSERT_EXPR's
        operand 1 to see if the types precision matches.
        * fold-const.c (operand_equal_p): Likewise.

2017-07-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81303
        * tree-vect-data-refs.c (vect_get_peeling_costs_all_drs): Pass
        in datarefs vector.  Allow NULL dr0 for no peeling cost estimate.
        (vect_peeling_hash_get_lowest_cost): Adjust.
        (vect_enhance_data_refs_alignment): Likewise.  Use
        vect_get_peeling_costs_all_drs to compute the penalty for no
        peeling to match up costs.

2017-07-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81500
        * tree-vect-loop.c (vect_is_simple_reduction): Properly fail if
        we didn't identify a reduction path.

2017-07-21  Tom de Vries  <tom@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>

        PR gcov-profile/81442
        * config/nvptx/nvptx.c (nvptx_goacc_reduction_init): Add missing edge
        probabilities.

2017-07-21  Tom de Vries  <tom@codesourcery.com>

        PR lto/81430
        * config/nvptx/nvptx.c (nvptx_override_options_after_change): New
        function.
        (TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE): Define to
        nvptx_override_options_after_change.

2017-07-21  Ulrich Drepper  <drepper@redhat.com>

        * dwarf2out.c (output_file_names): Avoid double testing for
        dwarf_version >= 5.

2017-07-21  Georg-Johann Lay  <avr@gjlay.de>

        * doc/invoke.texi (AVR Built-in Functions): Re-layout section.

2016-07-21  Jan Hubicka  <hubicka@ucw.cz>

        * cfgcleanup.c (flow_find_cross_jump): Do not crossjump across
        hot/cold regions.
        (try_crossjump_to_edge): Do not punt on partitioned functions.

2016-07-21  Jan Hubicka  <hubicka@ucw.cz>

        * bb-reorder.c (find_rarely_executed_basic_blocks_and_crossing_edges):
        Put all BBs reachable only via paths crossing cold region to cold
        region.
        * cfgrtl.c (find_bbs_reachable_by_hot_paths): New function.

2016-07-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81303
        * tree-vect-loop.c (vect_estimate_min_profitable_iters): Take
        into account prologue and epilogue iterations when raising
        min_profitable_iters to sth at least covering one vector iteration.

2017-07-21  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm.c (arm_test_cpu_arch_dat):
        Check for overlap.

2017-07-20  Nathan Sidwell  <nathan@acm.org>

        Remove TYPE_METHODS.
        * tree.h (TYPE_METHODS): Delete.
        * dwarf2out.c (gen_member_die): Member fns are on TYPE_FIELDS.
        * dbxout.c (dbxout_type_fields): Ignore FUNCTION_DECLs.
        (dbxout_type_methods): Scan TYPE_FIELDS.
        (dbxout_type): Don't check TYPE_METHODS here.
        * function.c (use_register_for_decl): Always ignore register for
        class types when not optimizing.
        * ipa-devirt.c (odr_types_equivalent_p): Delete TYPE_METHODS scan.
        * tree.c (free_lang_data_in_type): Stitch out member functions and
        templates from TYPE_FIELDS.
        (build_distinct_type_copy, verify_type_variant,
        verify_type): Member fns are on TYPE_FIELDS.
        * tree-dump.c (dequeue_and_dump): No TYPE_METHODS.
        * tree-pretty-print.c (dump_generic_node): Likewise.

2017-07-20  Jakub Jelinek  <jakub@redhat.com>

        PR target/80846
        * config/i386/i386.c (ix86_expand_vector_init_general): Handle
        V2TImode and V4TImode.
        (ix86_expand_vector_extract): Likewise.
        * config/i386/sse.md (VMOVE): Enable V4TImode even for just
        TARGET_AVX512F, instead of only for TARGET_AVX512BW.
        (ssescalarmode): Handle V4TImode and V2TImode.
        (VEC_EXTRACT_MODE): Add V4TImode and V2TImode.
        (*vec_extractv2ti, *vec_extractv4ti): New insns.
        (VEXTRACTI128_MODE): New mode iterator.
        (splitter for *vec_extractv?ti first element): New.
        (VEC_INIT_MODE): New mode iterator.
        (vec_init<mode>): Consolidate 3 expanders into one using
        VEC_INIT_MODE mode iterator.

2017-07-20  Alexander Monakov  <amonakov@ispras.ru>

        * lra-assigns.c (pseudo_compare_func): Fix comparison step based on
        non_spilled_static_chain_regno_p.

2017-07-20  Alexander Monakov  <amonakov@ispras.ru>

        * gimple-ssa-store-merging.c (sort_by_bitpos): Return 0 on equal bitpos.

2017-07-20  Jan Hubicka  <hubicka@ucw.cz>

        * bb-reorder.c (connect_traces): Allow copying of blocks within
        single partition.

2017-07-20  Richard Biener  <rguenther@suse.de>

        * gimple.h (gimple_phi_result): Add gphi * overload.
        (gimple_phi_result_ptr): Likewise.
        (gimple_phi_arg): Likewise.  Adjust index assert to only
        allow actual argument accesses rather than all slots available
        by capacity.
        (gimple_phi_arg_def): Add gphi * overload.
        * tree-phinodes.c (make_phi_node): Initialize only actual
        arguments.
        (resize_phi_node): Clear memory not covered by old node,
        do not initialize excess argument slots.
        (reserve_phi_args_for_new_edge): Initialize new argument slot
        completely.

2017-07-20  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/81388
        Revert r238585:
        2016-07-21  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-niter.c (number_of_iterations_lt_to_ne): Clean up
        by removing computation of may_be_zero.

2017-07-18  Jan Hubicka  <hubicka@ucw.cz>
            Tom de Vries  <tom@codesourcery.com>

        PR middle-end/81030
        * cfgbuild.c (find_many_sub_basic_blocks): Update REG_BR_PROB note
        when gimple level profile disagrees with what RTL expander did.

2017-07-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/61171
        * tree-vectorizer.h (slp_instance): Add reduc_phis member.
        (vect_analyze_stmt): Add slp instance parameter.
        (vectorizable_reduction): Likewise.
        * tree-vect-loop.c (vect_analyze_loop_operations): Adjust.
        (vect_is_simple_reduction): Deal with chains not detected
        as SLP reduction chain, specifically not properly associated
        chains containing a mix of plus/minus.
        (get_reduction_op): Remove.
        (get_initial_defs_for_reduction): Simplify, pass in whether
        this is a reduction chain, pass in the SLP node for the PHIs.
        (vect_create_epilog_for_reduction): Get the SLP instance as
        arg and adjust.
        (vectorizable_reduction): Get the SLP instance as arg.
        During analysis remember the SLP node with the PHIs in the
        instance.  Simplify getting at the vectorized reduction PHIs.
        * tree-vect-slp.c (vect_slp_analyze_node_operations): Pass
        through SLP instance.
        (vect_slp_analyze_operations): Likewise.
        * tree-vect-stms.c (vect_analyze_stmt): Likewise.
        (vect_transform_stmt): Likewise.

2017-07-20  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/81489
        * gimple-ssa-isolate-paths.c (find_implicit_erroneous_behavior): Move
        read of phi arg location to before loop that modifies phi.

2017-07-20  Naveen H.S  <Naveen.Hurugalawadi@cavium.com>

        * match.pd (((m1 >/</>=/<= m2) * d -> (m1 >/</>=/<= m2) ? d : 0):
        New pattern.

2017-07-19  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/81331
        * except.c (execute): Fix ordering issue.

2018-07-19  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/81423
        * combine.c (make_compound_operation_int): Don't try to optimize
        the AND of a SUBREG of an LSHIFTRT if that SUBREG is paradoxical.

2017-07-19  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/81423
        * simplify-rtx.c (simplify_truncation): Handle truncating an IOR
        with a constant that is -1 in the truncated to mode.

2017-07-19  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (propagate_unlikely_bbs_forward): Break out from ...
        (determine_unlikely_bbs): ... here.
        * predict.h (propagate_unlikely_bbs_forward): Declare.
        * cfgexpand.c (pass_expand::execute): Use it.
        * bb-reorder.c (sanitize_hot_paths): Do not consider known to be
        unlikely edges.
        (find_rarely_executed_basic_blocks_and_crossing_edges): Use
        propagate_unlikely_bbs_forward.

2017-07-19  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/81331
        * except.c (maybe_add_nop_after_section_switch): New function.
        (execute): Use it.

2017-07-19  Tom de Vries  <tom@codesourcery.com>

        * gimple.h (gimple_phi_set_arg): Make assert more strict.

2017-07-19  Tom de Vries  <tom@codesourcery.com>

        * gimple.h (gimple_phi_arg): Make assert more strict.

2017-07-19  Steven Munroe  <munroesj@gcc.gnu.org>

        * config.gcc (powerpc*-*-*): Add mmintrin.h.
        * config/rs6000/mmintrin.h: New file.
        * config/rs6000/x86intrin.h [__ALTIVEC__]: Include mmintrin.h.

2017-07-19  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/81346
        * match.pd: Optimize (X - 1U) <= INT_MAX-1U into (int) X > 0.

2017-07-19  Tom de Vries  <tom@codesourcery.com>

        * config/nvptx/nvptx.md (VECIM): Add V2DI.

2017-07-19  Tom de Vries  <tom@codesourcery.com>

        * config/nvptx/nvptx-modes.def: Add V2DImode.
        * config/nvptx/nvptx-protos.h (nvptx_data_alignment): Declare.
        * config/nvptx/nvptx.c (nvptx_ptx_type_from_mode): Handle V2DImode.
        (nvptx_output_mov_insn): Handle lack of mov.b128.
        (nvptx_print_operand): Handle 'H' and 'L' codes.
        (nvptx_vector_mode_supported): Allow V2DImode.
        (nvptx_preferred_simd_mode): New function.
        (nvptx_data_alignment): New function.
        (TARGET_VECTORIZE_PREFERRED_SIMD_MODE): Redefine to
        nvptx_preferred_simd_mode.
        * config/nvptx/nvptx.h (STACK_BOUNDARY, BIGGEST_ALIGNMENT): Change from
        64 to 128 bits.
        (DATA_ALIGNMENT): Define.  Set to nvptx_data_alignment.

2017-07-19  Tom de Vries  <tom@codesourcery.com>

        * config/nvptx/nvptx-modes.def: New file.  Add V2SImode.
        * config/nvptx/nvptx.c (nvptx_ptx_type_from_mode): Handle V2SImode.
        (nvptx_vector_mode_supported): New function.  Allow V2SImode.
        (TARGET_VECTOR_MODE_SUPPORTED_P): Redefine to nvptx_vector_mode_supported.
        * config/nvptx/nvptx.md (VECIM): New mode iterator. Add V2SI.
        (mov<VECIM>_insn): New define_insn.
        (define_expand "mov<VECIM>): New define_expand.

2017-07-19  Tom de Vries  <tom@codesourcery.com>

        * config/nvptx/nvptx.c (nvptx_print_operand): Handle v2 vector mode.

2017-07-19  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/81346
        * fold-const.h (fold_div_compare, range_check_type): Declare.
        * fold-const.c (range_check_type): New function.
        (build_range_check): Use range_check_type.
        (fold_div_compare): No longer static, rewritten into
        a match.pd helper function.
        (fold_comparison): Don't call fold_div_compare here.
        * match.pd (X / C1 op C2): New optimization using fold_div_compare
        as helper function.

2017-07-19  Nathan Sidwell  <nathan@acm.org>

        * tree.h (TYPE_MINVAL, TYPE_MAXVAL): Rename to ...
        (TYPE_MIN_VALUE_RAW, TYPE_MAX_VALUE_RAW): ... these.
        * tree.c (find_decls_types_r, verify_type): Use
        TYPE_{MIN,MAX}_VALUE_RAW.
        * lto-streamer-out.c (DFS::DFS_write_tree_body): Likewise.
        (hash_tree): Likewise.
        * tree-streamer-in.c (lto_input_ts_type_non_common_tree_pointers):
        Likewise.
        * tree-streamer-out.c (write_ts_type_non_common_tree_pointers):
        Likewise.

2017-07-18  Tom de Vries  <tom@codesourcery.com>

        PR middle-end/81464
        * omp-expand.c (expand_omp_for_static_chunk): Handle
        equal-argument loop exit phi.

2017-07-18  Uros Bizjak  <ubizjak@gmail.com>

        PR target/81471
        * config/i386/i386.md (rorx_immediate_operand): New mode attribute.
        (*bmi2_rorx<mode>3_1): Use rorx_immediate_operand as
        operand 2 predicate.
        (*bmi2_rorxsi3_1_zext): Use const_0_to_31_operand as
        operand 2 predicate.
        (ror,rol -> rorx splitters): Use const_int_operand as
        operand 2 predicate.

2017-06-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81410
        * tree-vect-stmts.c (vectorizable_load): Properly adjust for
        the gap in the ! slp_perm SLP case after each group.

2017-07-18  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/81463
        * cfgloopmanip.c (scale_loop_profile): Watch out for zero frequency
        again.

2017-07-18  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/81462
        * predict.c (set_even_probabilities): Cleanup; do not affect
        probabilities that are already known.
        (combine_predictions_for_bb): Call even when count is set.

2017-07-18  Nathan Sidwell  <nathan@acm.org>

        * tree-parloops.c (try_transform_to_exit_first_loop_alt): Use
        TYPE_MAX_VALUE.

2017-07-18  Bin Cheng  <bin.cheng@arm.com>

        PR target/81408
        * tree-ssa-loop-niter.c (number_of_iterations_exit): Dump missed
        optimization for loop niter analysis.

2017-07-18  Georg-Johann Lay  <avr@gjlay.de>

        PR target/81473
        * config/avr/avr.c (avr_optimize_casesi): Don't use
        INT8_MIN, INT8_MAX, UINT8_MAX, INT16_MIN, INT16_MAX, UINT16_MAX.

2017-07-18  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Remove
        body_cost_vec from _vect_peel_extended_info.
        (vect_peeling_hash_get_lowest_cost): Do not set body_cost_vec.
        (vect_peeling_hash_choose_best_peeling): Remove body_cost_vec and
        npeel.

2017-07-18  Bin Cheng  <bin.cheng@arm.com>

        * config/arm/arm.c (emit_unlikely_jump): Remove unused var.

2017-07-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80620
        PR tree-optimization/81403
        * tree-ssa-pre.c (phi_translate_1): Clear range and points-to
        info when re-using a VN table entry.

2017-07-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81418
        * tree-vect-loop.c (vectorizable_reduction): Properly compute
        vectype_in.  Verify that with lane-reducing reduction operations
        we have a single def-use cycle.

2017-07-17  Carl Love  <cel@us.ibm.com>

        Revert commit r249424   2017-06-20  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        ALTIVEC_BUILTIN_VMULESW, ALTIVEC_BUILTIN_VMULEUW,
        ALTIVEC_BUILTIN_VMULOSW, ALTIVEC_BUILTIN_VMULOUW entries.
        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin,
        builtin_function_type): Add ALTIVEC_BUILTIN_* case statements.
        * config/rs6000/altivec.md (MVULEUW, VMULESW, VMULOUW,
        VMULOSW): New enum "unspec" values.
        (vec_widen_umult_even_v4si, vec_widen_smult_even_v4si,
        vec_widen_umult_odd_v4si, vec_widen_smult_odd_v4si,
        altivec_vmuleuw, altivec_vmulesw, altivec_vmulouw,
        altivec_vmulosw): New patterns.
        * config/rs6000/rs6000-builtin.def (VMLEUW, VMULESW, VMULOUW,
        VMULOSW): Add definitions.

2017-07-17  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c: Include predict.h.

2017-07-17  Yury Gribov  <tetra2005@gmail.com>

        * tree-vrp.c (compare_assert_loc): Fix comparison function
        to return predictable results.

2017-07-17  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (adddi3): Remove support for mexpand-adddi
        option.
        (subdi3): Likewise.
        * config/arc/arc.opt (mexpand-adddi): Deprecate it.
        * doc/invoke.texi (mexpand-adddi): Update text.

2017-07-17  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (clzsi2): Expand to an arc_clzsi2 instruction
        that also clobbers the CC register. The old expand code is moved
        to ...
        (*arc_clzsi2): ... here.
        (ctzsi2): Expand to an arc_ctzsi2 instruction that also clobbers
        the CC register. The old expand code is moved to ...
        (arc_ctzsi2): ... here.

2017-07-17  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.opt (mindexed-loads): Use initial value
        TARGET_INDEXED_LOADS_DEFAULT.
        (mauto-modify-reg): Use initial value
        TARGET_AUTO_MODIFY_REG_DEFAULT.
        * config/arc/elf.h (TARGET_INDEXED_LOADS_DEFAULT): Define.
        (TARGET_AUTO_MODIFY_REG_DEFAULT): Likewise.
        * config/arc/linux.h (TARGET_INDEXED_LOADS_DEFAULT): Define.
        (TARGET_AUTO_MODIFY_REG_DEFAULT): Likewise.

2017-07-17  Martin Liska  <mliska@suse.cz>

        PR sanitizer/81302
        * opts.c (finish_options): Do not allow -fgnu-tm
        w/ -fsanitize={kernel-,}address.  Say sorry.

2017-07-17  Bin Cheng  <bin.cheng@arm.com>

        PR target/81369
        * tree-loop-distribution.c (classify_partition): Only assert on
        numer of iterations.
        (merge_dep_scc_partitions): Delete prameter.  Update function call.
        (distribute_loop): Remove code handling loop with unknown niters.
        (pass_loop_distribution::execute): Skip loop with unknown niters.

2017-07-17  Bin Cheng  <bin.cheng@arm.com>

        PR target/81369
        * tree-loop-distribution.c (merge_dep_scc_partitions): Sink call to
        function sort_partitions_by_post_order.

2017-07-17  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/81374
        * tree-loop-distribution.c (pass_loop_distribution::execute): Record
        the max index of basic blocks, rather than number of basic blocks.

2017-07-17  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-protos.h (arc_legitimate_pc_offset_p): Remove
        proto.
        (arc_legitimate_pic_operand_p): Likewise.
        * config/arc/arc.c (arc_legitimate_pic_operand_p): Remove
        function.
        (arc_needs_pcl_p): Likewise.
        (arc_legitimate_pc_offset_p): Likewise.
        (arc_legitimate_pic_addr_p): Remove LABEL_REF case, as this
        function is also used in constrains.md.
        (arc_legitimate_constant_p): Use arc_legitimate_pic_addr_p to
        validate pic constants. Handle CONST_INT, CONST_DOUBLE, MINUS and
        PLUS.  Only return true/false in known cases, otherwise assert.
        (arc_legitimate_address_p): Remove arc_legitimate_pic_addr_p as it
        is already called in arc_legitimate_constant_p.
        * config/arc/arc.h (CONSTANT_ADDRESS_P): Consider also LABEL for
        pic addresses.
        (LEGITIMATE_PIC_OPERAND_P): Use
        arc_raw_symbolic_reference_mentioned_p function.
        * config/arc/constraints.md (Cpc): Use arc_legitimate_pic_addr_p
        function.
        (Cal): Likewise.
        (C32): Likewise.

2017-07-17  Claudiu Zissulescu  <claziss@synopsys.com>
        Andrew Burgess  <andrew.burgess@embecosm.com>

        * config/arc/arc-protos.h (arc_compute_function_type): Change prototype.
        (arc_return_address_register): New function.
        * config/arc/arc.c (arc_handle_fndecl_attribute): New function.
        (arc_handle_fndecl_attribute): Add naked attribute.
        (TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS): Define.
        (TARGET_WARN_FUNC_RETURN): Likewise.
        (arc_allocate_stack_slots_for_args): New function.
        (arc_warn_func_return): Likewise.
        (machine_function): Change type fn_type.
        (arc_compute_function_type): Consider new naked function type,
        change function return type.
        (arc_must_save_register): Adapt to handle new
        arc_compute_function_type's return type.
        (arc_expand_prologue): Likewise.
        (arc_expand_epilogue): Likewise.
        (arc_return_address_regs): Delete.
        (arc_return_address_register): New function.
        (arc_epilogue_uses): Use above function.
        * config/arc/arc.h (arc_return_address_regs): Delete prototype.
        (arc_function_type): Change encoding, add naked type.
        (ARC_INTERRUPT_P): Change to handle the new encoding.
        (ARC_FAST_INTERRUPT_P): Likewise.
        (ARC_NORMAL_P): Define.
        (ARC_NAKED_P): Likewise.
        (arc_compute_function_type): Delete prototype.
        * config/arc/arc.md (in_ret_delay_slot): Use
        arc_return_address_register function.
        (simple_return): Likewise.
        (p_return_i): Likewise.

2017-07-17  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/81428
        * match.pd (X / X -> one): Don't optimize _Fract divisions, as 1
        can't be built for those types.

2017-07-17  Georg-Johann Lay  <avr@gjlay.de>

        Remove stuff dead since r239246.

        * config/avr/avr-arch.h (avr_inform_devices): Remove dead proto.
        * config/avr/avr-devices.c (mcu_name, comparator, avr_mcus_str)
        (avr_inform_devices): Remove dead stuff.

2017-07-17  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm_neon.h: Fix softp typo.

2017-07-17  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/81365
        * tree-ssa-phiprop.c (propagate_with_phi): When considering hoisting
        aggregate moves onto bb predecessor edges, make sure there are no
        loads that could alias the lhs in between the start of bb and the
        loads from *phi.

2017-07-17  Georg-Johann Lay  <avr@gjlay.de>

        PR 80929
        * config/avr/avr.c (avr_mul_highpart_cost): New static function.
        (avr_rtx_costs_1) [TRUNCATE]: Use it to compute mul_highpart cost.
        [LSHIFTRT, outer_code = TRUNCATE]: Same.

2017-07-17  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/81396
        * tree-ssa-math-opts.c (struct symbolic_number): Add n_ops field.
        (init_symbolic_number): Initialize it to 1.
        (perform_symbolic_merge): Add n_ops from both operands into the new
        n_ops.
        (find_bswap_or_nop): Don't consider n->n == cmpnop computations
        without base_addr as useless if they need more than one operation.
        (bswap_replace): Handle !bswap case for NULL base_addr.

2017-07-17  Tom de Vries  <tom@codesourcery.com>

        PR target/81069
        * config/nvptx/nvptx.c (nvptx_single): Insert diverging branch as late
        as possible.

2017-07-17  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * config/sparc/rtemself.h (TARGET_OS_CPP_BUILTINS): Add
        conditional builtin define __FIX_LEON3FT_B2BST.

2017-07-17  Daniel Cederman  <cederman@gaisler.com>

        * config/sparc/t-rtems: Add mfix-gr712rc multilibs. Replace
        MULTILIB_EXCEPTIONS with MULTILIB_REQUIRED. Match -mfix-gr712rc
        with -mfix-ut700.

2017-07-16  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/81424
        * optabs.c (prepare_cmp_insn): Use copy_to_reg instead of force_reg
        to remove potential trapping from operands if -fnon-call-exceptions.

2017-07-16  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Use
        profile_proability for scalling.
        * scale_profile_for_vect_loop.c (scale_profile_for_vect_loop): Likewise.

2017-07-16  Jan Hubicka  <hubicka@ucw.cz>

        * cgraph.c (cgraph_edge::redirect_call_stmt_to_caller): Cleanup.

2017-07-16  Jan Hubicka  <hubicka@ucw.cz>

        * cfgloopmanip.c (scale_loop_profile): Avoid use of REG_BR_PROB_BASE
        fixpoint arithmetics.

2017-07-16  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-unswitch.c (hoist_guard): Avoid use of REG_BR_PROB_BASE
        fixpoint arithmetics.

2017-07-16  Jan Hubicka  <hubicka@ucw.cz>

        * asan.c (create_cond_insert_point): Avoid use of REG_BR_PROB_BASE
        fixpoint arithmetics.

2017-07-16  Jan Hubicka  <hubicka@ucw.cz>

        * profile-count.h (profile_probability::from_reg_br_prob_note,
        profile_probability::to_reg_br_prob_note): New functions.
        * doc/rtl.texi (REG_BR_PROB_NOTE): Update documentation.
        * reg-notes.h (REG_BR_PROB, REG_BR_PRED): Update docs.
        * predict.c (probability_reliable_p): Update.
        (edge_probability_reliable_p): Update.
        (br_prob_note_reliable_p): Update.
        (invert_br_probabilities): Update.
        (add_reg_br_prob_note): New function.
        (combine_predictions_for_insn): Update.
        * asan.c (asan_clear_shadow): Update.
        * cfgbuild.c (compute_outgoing_frequencies): Update.
        * cfgrtl.c (force_nonfallthru_and_redirect): Update.
        (update_br_prob_note): Update.
        (rtl_verify_edges): Update.
        (purge_dead_edges): Update.
        (fixup_reorder_chain): Update.
        * emit-rtl.c (try_split): Update.
        * ifcvt.c (cond_exec_process_insns): Update.
        (cond_exec_process_if_block): Update.
        (dead_or_predicable): Update.
        * internal-fn.c (expand_addsub_overflow): Update.
        (expand_neg_overflow): Update.
        (expand_mul_overflow): Update.
        * loop-doloop.c (doloop_modify): Update.
        * loop-unroll.c (compare_and_jump_seq): Update.
        * optabs.c (emit_cmp_and_jump_insn_1): Update.
        * predict.h: Update.
        * reorg.c (mostly_true_jump): Update.
        * rtl.h: Update.
        * config/aarch64/aarch64.c (aarch64_emit_unlikely_jump): Update.
        * config/alpha/alpha.c (emit_unlikely_jump): Update.
        * config/arc/arc.c: (emit_unlikely_jump): Update.
        * config/arm/arm.c: (emit_unlikely_jump): Update.
        * config/bfin/bfin.c (cbranch_predicted_taken_p): Update.
        * config/frv/frv.c (frv_print_operand_jump_hint): Update.
        * config/i386/i386.c (ix86_expand_split_stack_prologue): Update.
        (ix86_print_operand): Update.
        (ix86_split_fp_branch): Update.
        (predict_jump): Update.
        * config/ia64/ia64.c (ia64_print_operand): Update.
        * config/mmix/mmix.c (mmix_print_operand): Update.
        * config/powerpcspe/powerpcspe.c (output_cbranch): Update.
        (rs6000_expand_split_stack_prologue): Update.
        * config/rs6000/rs6000.c: Update.
        * config/s390/s390.c (s390_expand_vec_strlen): Update.
        (s390_expand_vec_movstr): Update.
        (s390_expand_cs_tdsi): Update.
        (s390_expand_split_stack_prologue): Update.
        * config/sh/sh.c (sh_print_operand): Update.
        (expand_cbranchsi4): Update.
        (expand_cbranchdi4): Update.
        * config/sparc/sparc.c (output_v9branch): Update.
        * config/spu/spu.c (get_branch_target): Update.
        (ea_load_store_inline): Update.
        * config/tilegx/tilegx.c (cbranch_predicted_p): Update.
        * config/tilepro/tilepro.c: Update.

2017-07-16  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (mostly_copy_tree_r): Revert latest change.
        (gimplify_save_expr): Likewise.

2017-07-07  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-visibility.c (function_and_variable_visibility): Fix pasto.

2017-07-07  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-fnsummary.c (pass_data_ipa_fn_summary): Use
        TV_IPA_FNSUMMARY.
        * timevar.def (TV_IPA_FNSUMMARY): Define.

2017-07-16  Daniel Cederman  <cederman@gaisler.com>

        * config/sparc/sparc.md (divdf3_fix): Add NOP to prevent back
        to back store errata sensitive sequence from being generated.
        (sqrtdf2_fix): Likewise.

2017-07-07  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-threadupdate.c (compute_path_counts,
        update_joiner_offpath_counts): Use profile_probability.

2017-07-15  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        Revert:
        2017-07-14  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-c.c (arm_cpu_builtins): Define
        __ARM_FEATURE_NUMERIC_MAXMIN solely based on TARGET_VFP5.

2017-07-14  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        array entries to represent __ieee128 versions of the
        scalar_test_data_class, scalar_test_neg, scalar_extract_exp,
        scalar_extract_sig, and scalar_insert_exp built-in functions.
        (altivec_resolve_overloaded_builtin): Add special case handling
        for the __builtin_scalar_insert_exp function, as represented by
        the P9V_BUILTIN_VEC_VSIEDP constant.
        * config/rs6000/rs6000-builtin.def (VSEEQP): Add scalar extract
        exponent support for __ieee128 argument.
        (VSESQP): Add scalar extract signature support for __ieee128
        argument.
        (VSTDCNQP): Add scalar test negative support for __ieee128
        argument.
        (VSIEQP): Add scalar insert exponent support for __int128 argument
        with __ieee128 result.
        (VSIEQPF): Add scalar insert exponent support for __ieee128
        argument with __ieee128 result.
        (VSTDCQP): Add scalar test data class support for __ieee128
        argument.
        (VSTDCNQP): Add overload support for scalar test negative with
        __ieee128 argument.
        (VSTDCQP): Add overload support for scalar test data class
        __ieee128 argument.
        * config/rs6000/vsx.md (UNSPEC_VSX_SXSIG) Replace
        UNSPEC_VSX_SXSIGDP.
        (UNSPEC_VSX_SIEXPQP): New constant.
        (xsxexpqp): New insn for VSX scalar extract exponent quad
        precision.
        (xsxsigqp): New insn for VSX scalar extract significand quad
        precision.
        (xsiexpqpf): New insn for VSX scalar insert exponent quad
        precision with floating point argument.
        (xststdcqp): New expand for VSX scalar test data class quad
        precision.
        (xststdcnegqp): New expand for VSX scalar test negative quad
        precision.
        (xststdcqp): New insn to match expansions for VSX scalar test data
        class quad precision and VSX scalar test negative quad precision.
        * config/rs6000/rs6000.c (rs6000_expand_binop_builtin): Add
        special case operand checking to enforce that second operand of
        VSX scalar test data class with quad precision argument is a 7-bit
        unsigned literal.
        * doc/extend.texi (PowerPC AltiVec Built-in Functions): Add
        prototypes and descriptions of __ieee128 versions of
        scalar_extract_exp, scalar_extract_sig, scalar_insert_exp,
        scalar_test_data_class, and scalar_test_neg built-in functions.

2016-07-14  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/81162
        * gimple-ssa-strength-reduction.c (replace_mult_candidate): Don't
        replace a negate with an add.

2017-07-14  James Greenhalgh  <james.greenhalgh@arm.com>

        * doc/invoke.texi (arm/-mcpu): Document +crypto.

2017-07-14  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-c.c (arm_cpu_builtins): Define
        __ARM_FEATURE_NUMERIC_MAXMIN solely based on TARGET_VFP5.

2017-07-14  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-cpus.in (cortex-r52): Add new entry.
        (armv8-r): Set ARM Cortex-R52 as default CPU.
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/arm-tune.md: Regenerate.
        * config/arm/driver-arm.c (arm_cpu_table): Add entry for ARM
        Cortex-R52.
        * doc/invoke.texi: Mention -mtune=cortex-r52 and availability of fp.dp
        extension for -mcpu=cortex-r52.

2017-07-14  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-isa.h (isa_bit_FP_ARMv8): Delete enumerator.
        (ISA_FP_ARMv8): Define as ISA_FPv5 and ISA_FP_D32.
        * config/arm/arm-cpus.in (armv8-r): Define fp.sp as enabling FPv5.
        (fp-armv8): Define it as FP_ARMv8 only.
        config/arm/arm.h (TARGET_FPU_ARMV8): Delete.
        (TARGET_VFP_FP16INST): Define using TARGET_VFP5 rather than
        TARGET_FPU_ARMV8.
        config/arm/arm.c (arm_rtx_costs_internal): Replace checks against
        TARGET_FPU_ARMV8 by checks against TARGET_VFP5.
        * config/arm/arm-builtins.c (arm_builtin_vectorized_function): Define
        first ARM_CHECK_BUILTIN_MODE definition using TARGET_VFP5 rather
        than TARGET_FPU_ARMV8.
        * config/arm/arm-c.c (arm_cpu_builtins): Likewise for
        __ARM_FEATURE_NUMERIC_MAXMIN macro definition.
        * config/arm/arm.md (cmov<mode>): Condition on TARGET_VFP5 rather than
        TARGET_FPU_ARMV8.
        * config/arm/neon.md (neon_vrint): Likewise.
        (neon_vcvt): Likewise.
        (neon_<fmaxmin_op><mode>): Likewise.
        (<fmaxmin><mode>3): Likewise.
        * config/arm/vfp.md (l<vrint_pattern><su_optab><mode>si2): Likewise.
        * config/arm/predicates.md (arm_cond_move_operator): Check against
        TARGET_VFP5 rather than TARGET_FPU_ARMV8 and fix spacing.

2017-07-14  Jackson Woodruff  <jackson.woodruff@arm.com>

        * config/aarch64/aarch64.c (aarch64_print_operand): Move comments
        to top of function.

2017-07-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * gimple-ssa-store-merging.c (clear_bit_region): Replace reference to
        loop in comment with memset.

2017-07-14  Martin Liska  <mliska@suse.cz>

        * cfgexpand.c (expand_gimple_basic_block): Remove dead comment.
        * dwarf2out.c (is_java): Remove the function.
        (output_pubname): Remove usage of the function.
        (lower_bound_default): Remove usage of DW_LANG_Java.
        (gen_compile_unit_die): Likewise.
        * gcc.c: Remove compiler defaults for .java and .zip files.
        * gimple-expr.c (remove_suffix): Change as there's no longer
        extension than 4-letter one.
        * gimplify.c (mostly_copy_tree_r): Remove Java-special part.
        (gimplify_save_expr): Likewise.
        * ipa-utils.h (polymorphic_type_binfo_p): Remove the comment
        as it's possible even for other languages than Java.
        * langhooks.h (struct lang_hooks): Remove Java from a comment.
        * lto-opts.c (lto_write_options): Remove reference to Java.
        * opts.c (strip_off_ending): Update file extension handling.
        * tree-cfg.c (verify_gimple_call): Remove comment with Java.
        * tree-eh.c (lower_resx): Likewise.
        * tree.c (free_lang_data_in_type): Remove dead code.
        (find_decls_types_r): Likewise.
        (build_common_builtin_nodes): Remove Java from a comment.
        (verify_type): Remove dead code.
        * varasm.c (assemble_external): Remove Java from a comment.

2017-07-14  Martin Liska  <mliska@suse.cz>

        * opts.c (finish_options): Add quotes.
        (common_handle_option): Likewise.

2017-07-14  Martin Liska  <mliska@suse.cz>

        * dbxout.c (get_lang_number): Do not handle GNU Pascal.
        * dbxout.h (extern void dbxout_stab_value_internal_label_diff):
        Remove N_SO_PASCAL.
        * dwarf2out.c (lower_bound_default): Do not handle
        DW_LANG_Pascal83.
        (gen_compile_unit_die): Likewise.
        * gcc.c: Remove default extension binding for GNU Pascal.
        * stmt.c: Remove Pascal language from a comment.
        * xcoffout.c: Likewise.

2017-07-13  David Malcolm  <dmalcolm@redhat.com>

        PR c/81405
        * diagnostic-show-locus.c (fixit_cmp): New function.
        (layout::layout): Sort m_fixit_hints.
        (column_range::column_range): Assert that the values are valid.
        (struct char_span): New struct.
        (correction::overwrite): New method.
        (struct source_line): New struct.
        (line_corrections::add_hint): Add assertions.  Reimplement memcpy
        calls in terms of classes source_line and char_span, and
        correction::overwrite.
        (selftest::test_overlapped_fixit_printing_2): New function.
        (selftest::diagnostic_show_locus_c_tests): Call it.

2017-07-13  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Return
        early if there is no lhs.

2017-07-13  Martin Liska  <mliska@suse.cz>

        * dwarf2out.c (gen_pointer_type_die): Remove dead code.
        (gen_reference_type_die): Likewise.
        * stor-layout.c: Remove Pascal-related comment.

2017-07-13  Martin Liska  <mliska@suse.cz>

        * opts.c (finish_options): Add quotes to error messages.
        (parse_sanitizer_options): Likewise.

2017-07-13  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * doc/invoke.texi (armv8-r): Document +fp.sp ARMv8-R extension.

2017-07-13  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/vxworks.h (TARGET_ENDIAN_DEFAULT): Define.

2017-07-13  Maxim Ostapenko  <m.ostapenko@samsung.com>

        * asan.c (asan_emit_allocas_unpoison): Use ptr_mode for arguments
        during expansion.
        * builtins.c (expand_asan_emit_allocas_unpoison): Likewise.

2017-07-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/81193
        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If GLIBC
        provides the hardware capability bits, define the macro
        __BUILTIN_CPU_SUPPORTS__.
        * config/rs6000/rs6000.c (cpu_expand_builtin): Generate a warning
        if GLIBC does not provide the hardware capability bits.  Add a
        gcc_unreachable call if the built-in cpu function is neither
        __builtin_cpu_is nor __builtin_cpu_supports.
        (rs6000_get_function_versions_dispatcher): Change the warning
        that an old GLIBC is used which does not export the capability
        bits to be an error.
        * doc/extend.texi (target_clones attribute): Document the
        restriction that GLIBC 2.23 or newer is needed on the PowerPC.
        (PowerPC built-in functions): Document that GLIBC 2.23 or newer is
        needed by __builtin_cpu_is and __builtin_cpu_supports.  Document
        the macros defined by GCC if the newer GLIBC is available.

2017-07-12  Jeff Law  <law@redhat.com>

        * config/riscv/riscv.c: Remove unnecessary includes.  Reorder
        remaining includes slightly.
        * config/riscv/riscv-builtins.c: Include profile-count.h.

2017-07-12  Georg-Johann Lay  <avr@gjlay.de>

        PR target/79883
        * config/avr/avr.c (avr_set_current_function): In diagnostic
        messages: Quote keywords and (parts of) identifiers.
        [WITH_AVRLIBC]: Warn for functions named "ISR", "SIGNAL" or
        "INTERUPT".

2017-07-12  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c.c: Add support for built-in functions
        vector bool char vec_revb (vector bool char);
        vector bool short vec_revb (vector short char);
        vector bool int vec_revb (vector bool int);
        vector bool long long vec_revb (vector bool long long);
        * doc/extend.texi: Update the built-in documentation file for the
        new built-in functions.

2017-07-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md: Remove movcc splitter.

2017-07-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_rtx_costs): Return proper costs for
        load/store on condition.

2017-07-12  Georg-Johann Lay  <avr@gjlay.de>

        PR target/81407
        * config/avr/avr.c (avr_encode_section_info)
        [progmem && !TREE_READONLY]: Error if progmem object needs
        constructing.

2017-07-11  Michael Collison  <michael.collison@arm.com>

        * config/aarch64/aarch64-simd.md (aarch64_sub<mode>_compare0):
        New pattern.

2017-07-11  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c.c: Add support for builtins
        vector unsigned int vec_parity_lsbb (vector signed int);
        vector unsigned int vec_parity_lsbb (vector unsigned int);
        vector unsigned __int128 vec_parity_lsbb (vector signed __int128);
        vector unsigned __int128 vec_parity_lsbb (vector unsigned __int128);
        vector unsigned long long vec_parity_lsbb (vector signed long long);
        vector unsigned long long vec_parity_lsbb (vector unsigned long long);
        * config/rs6000/rs6000-builtin.def (VPARITY_LSBB): Add BU_P9V_OVERLOAD1.
        * config/rs6000/altivec.h (vec_parity_lsbb): Add define.
        * doc/extend.texi: Update the built-in documentation file for the
        new built-in functions.

2017-07-11  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c: Include "gcc-rich-location.h".
        (layout::m_primary_loc): New field.
        (layout::layout): Initialize new field.  Move location filtering
        logic from here to...
        (layout::maybe_add_location_range): ...this new method.  Add
        support for filtering to just the lines already specified by other
        locations.
        (layout::will_show_line_p): New method.
        (gcc_rich_location::add_location_if_nearby): New method.
        (selftest::test_add_location_if_nearby): New test function.
        (selftest::diagnostic_show_locus_c_tests): Call it.
        * gcc-rich-location.h (gcc_rich_location::add_location_if_nearby):
        New method.

2017-07-11  Tom de Vries  <tom@codesourcery.com>

        * config/nvptx/nvptx.c (WORKAROUND_PTXJIT_BUG): New macro.
        (bb_first_real_insn): New function.
        (nvptx_single): Add extra initialization of broadcasted condition
        variables.

2017-07-11  Nathan Sidwell  <nathan@acm.org>

        * dwarf2out.c (gen_member_die): Remove useless check for anon ctors.

2017-07-11  Georg-Johann Lay  <avr@gjlay.de>

        * doc/extend.texi (AVR Function Attributes): Remove weblink to
        Binutils doc as TEXI will mess them up.
        * doc/invoke.texi (AVR Options): Same here.

2017-07-11  Daniel Cederman  <cederman@gaisler.com>

        * config/sparc/sparc.opt (mfix-ut700): New option.
        (mfix-gr712rc): Likewise.
        (sparc_fix_b2bst): New variable.
        * doc/invoke.texi (SPARC options): Document them.
        (ARM options): Fix warnings.
        * config/sparc/sparc.c (sparc_do_work_around_errata): Insert NOP
        instructions to prevent sequences that can trigger the store-store
        errata for certain LEON3FT processors.
        (pass_work_around_errata::gate): Also test sparc_fix_b2bst.
        (sparc_option_override): Set sparc_fix_b2bst appropriately.
        * config/sparc/sparc.md (fix_b2bst): New attribute.
        (in_branch_delay): Prevent stores in delay slot if fix_b2bst.

2017-07-10  Uros Bizjak  <ubizjak@gmail.com>

        PR target/81375
        * config/i386/i386.md (divsf3): Add TARGET_SSE to TARGET_SSE_MATH.
        (rcpps): Ditto.
        (*rsqrtsf2_sse): Ditto.
        (rsqrtsf2): Ditto.
        (div<mode>3): Macroize insn from divdf3 and divsf3
        using MODEF mode iterator.

2017-07-10  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/80397
        * gimple-ssa-sprintf.c (format_integer): Use INTEGRAL_TYPE_P()
        instead of testing for equality to INTEGER_TYPE.

2017-07-10  Vineet Gupta <vgupta@synopsys.com>

        * config.gcc: Remove uclibc from arc target spec.

2017-07-10  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.h (ADDITIONAL_REGISTER_NAMES): Define.

2017-07-07  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/80838
        * lto-wrapper.c (remove_option): New function.
        (merge_and_complain): Merge PIC/PIE options more realistically.

2017-07-10  Georg-Johann Lay  <avr@gjlay.de>

        Better ISR prologues by supporting GASes __gcc_isr pseudo insn.

        PR target/20296
        PR target/81268
        * configure.ac [target=avr]: Add GAS check for -mgcc-isr.
        (HAVE_AS_AVR_MGCCISR_OPTION):  If so, AC_DEFINE it.
        * config.in: Regenerate.
        * configure: Regenerate.
        * doc/extend.texi (AVR Function Attributes) <no_gccisr>: Document it.
        * doc/invoke.texi (AVR Options) <-mgas-isr-prologues>: Document it.
        * config/avr/avr.opt (-mgas-isr-prologues): New option and...
        (TARGET_GASISR_PROLOGUES): ...target mask.
        * common/config/avr/avr-common.c
        (avr_option_optimization_table) [OPT_LEVELS_1_PLUS_NOT_DEBUG]:
        Set -mgas-isr-prologues.
        * config/avr/avr-passes.def (avr_pass_pre_proep): Add
        INSERT_PASS_BEFORE for it.
        * config/avr/avr-protos.h (make_avr_pass_pre_proep): New proto.
        * config/avr/avr.c (avr_option_override)
        [!HAVE_AS_AVR_MGCCISR_OPTION]: Unset TARGET_GASISR_PROLOGUES.
        (avr_no_gccisr_function_p, avr_hregs_split_reg): New static functions.
        (avr_attribute_table) <no_gccisr>: Add new function attribute.
        (avr_set_current_function) <is_no_gccisr>: Init machine field.
        (avr_pass_data_pre_proep, avr_pass_pre_proep): New pass data
        and rtl_opt_pass.
        (make_avr_pass_pre_proep): New function.
        (emit_push_sfr) <treg>: Add argument to function and use it
        instead of TMP_REG.
        (avr_expand_prologue) [machine->gasisr.maybe]: Emit gasisr insn
        and set machine->gasisr.yes.
        (avr_expand_epilogue) [machine->gasisr.yes]: Similar.
        (avr_asm_function_end_prologue) [machine->gasisr.yes]: Add
        __gcc_isr.n_pushed to .L__stack_usage.
        (TARGET_ASM_FINAL_POSTSCAN_INSN): Define to...
        (avr_asm_final_postscan_insn): ...this new static function.
        * config/avr/avr.h (machine_function)
        <is_no_gccisr, use_L__stack_usage>: New fields.
        <gasisr, gasisr.yes, gasisr.maybe, gasisr.regno>: New fields.
        * config/avr/avr.md (UNSPECV_GASISR): Add unspecv enum.
        (GASISR_Prologue, GASISR_Epilogue, GASISR_Done): New define_constants.
        (gasisr, *gasisr): New expander and insn.
        * config/avr/gen-avr-mmcu-specs.c (print_mcu)
        [HAVE_AS_AVR_MGCCISR_OPTION]: Print asm_gccisr spec.
        * config/avr/specs.h (ASM_SPEC) <asm_gccisr>: Add sub spec.

2017-07-10  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/parsecpu.awk (gen_comm_data): Do not escape single quotes
        in quoted strings.

2017-07-10  Georg-Johann Lay  <avr@gjlay.de>

        Move jump-tables out of .text again.

        PR target/81075
        * config/avr/avr.c (ASM_OUTPUT_ADDR_VEC_ELT): Remove function.
        (ASM_OUTPUT_ADDR_VEC): New function.
        (avr_adjust_insn_length) [JUMP_TABLE_DATA_P]: Return 0.
        (avr_final_prescan_insn) [avr_log.insn_addresses]: Dump
        INSN_ADDRESSes as asm comment.
        * config/avr/avr.h (JUMP_TABLES_IN_TEXT_SECTION): Adjust comment.
        (ASM_OUTPUT_ADDR_VEC_ELT): Remove define.
        (ASM_OUTPUT_ADDR_VEC): Define to avr_output_addr_vec.
        * config/avr/avr.md (*tablejump): Adjust comment.
        * config/avr/elf.h (ASM_OUTPUT_BEFORE_CASE_LABEL): Remove.
        * config/avr/avr-log.c (avr_log_set_avr_log) <insn_addresses>:
        New detail.
        * config/avr/avr-protos.h (avr_output_addr_vec_elt): Remove proto.
        (avr_output_addr_vec): New proto.
        (avr_log_t) <insn_addresses>: New field.

2017-07-09  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/81313
        * config/i386/i386.c (ix86_function_arg_advance): Set
        outgoing_args_on_stack to true if there are outgoing arguments
        on stack.
        (ix86_function_arg): Likewise.
        (ix86_get_drap_rtx): Use DRAP only if there are outgoing
        arguments on stack and ACCUMULATE_OUTGOING_ARGS is false.
        * config/i386/i386.h (machine_function): Add
        outgoing_args_on_stack.

2017-07-09  Krister Walfridsson  <krister.walfridsson@gmail.com>

        * config.gcc (*-*-netbsd*): Remove check for NetBSD versions not
        supporting pthreds.
        * config/netbsd.h (NETBSD_LIBGCC_SPEC): Always enable pthreads.

2017-07-08  Richard Sandiford  <richard.sandiford@linaro.org>

        * Makefile.in (HOOKS_H, RTL_BASE_H, FUNCTION_H, EXPR_H, REGS_H)
        (REAL_H): Remove $(MACHMODE_H).
        (FIXED_VALUE_H, TREE_CORE_H, CFGLOOP_H): Remove $(MACHMODE_H) and
        double-int.h.
        (CORETYPES_H): Add signop.h, wide-int.h, wide-int-print.h,
        $(MACHMODE_H) and double-int.h.
        (build/min-insn-modes.o): Depend on $(CORETYPES_H) rather than
        $(MACHMODE_H).
        (gengtype-state.o, gengtype.o, build/gengtype.o): Don't depend on
        double-int.h.

2017-07-07  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64.c (aarch_macro_fusion_pair_p): Check
        prev_set and curr_set for AARCH64_FUSE_ALU_BRANCH.

2017-07-07  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_get_function_versions_dispatcher):
        Add warning if GCC was not configured to link against a GLIBC that
        exports the hardware capability bits.
        (make_resolver_func): Make resolver function private and not a
        COMDAT function.  Create the name with clone_function_name instead
        of make_unique_name.

        PR target/81348
        * config/rs6000/rs6000.md (HI sign_extend splitter): Use the
        correct operand in doing the split.

2017-07-07 Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c: Add support for built-in function
        vector unsigned short vec_pack_to_short_fp32 (vector float,
                                                      vector float).
        * config/rs6000/rs6000-builtin.def (CONVERT_4F32_8I16): Add
        BU_P9V_AV_2 and BU_P9V_OVERLOAD_2 definitions.
        * config/rs6000/altivec.h (vec_pack_to_short_fp32): Add define.
        * config/rs6000/altivec.md(UNSPEC_CONVERT_4F32_8I16): Add UNSPEC.
        (convert_4f32_8i16): Add define_expand.
        * doc/extend.texi: Update the built-in documentation file for the
        new built-in function.

2017-07-07  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * config/sparc/m8.md: New file.
        * config/sparc/sparc.md: Include m8.md.

2017-07-07  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * config/sparc/sparc.opt: New option -mvis4b.
        * config/sparc/sparc.c (dump_target_flag_bits): Handle MASK_VIS4B.
        (sparc_option_override): Handle VIS4B.
        (enum sparc_builtins): Define
        SPARC_BUILTIN_DICTUNPACK{8,16,32},
        SPARC_BUILTIN_FPCMP{LE,GT,EQ,NE}{8,16,32}SHL,
        SPARC_BUILTIN_FPCMPU{LE,GT}{8,16,32}SHL,
        SPARC_BUILTIN_FPCMPDE{8,16,32}SHL and
        SPARC_BUILTIN_FPCMPUR{8,16,32}SHL.
        (check_constant_argument): New function.
        (sparc_vis_init_builtins): Define builtins
        __builtin_vis_dictunpack{8,16,32},
        __builtin_vis_fpcmp{le,gt,eq,ne}{8,16,32}shl,
        __builtin_vis_fpcmpu{le,gt}{8,16,32}shl,
        __builtin_vis_fpcmpde{8,16,32}shl and
        __builtin_vis_fpcmpur{8,16,32}shl.
        (sparc_expand_builtin): Check that the constant operands to
        __builtin_vis_fpcmp*shl and _builtin_vis_dictunpack* are indeed
        constant and in range.
        * config/sparc/sparc-c.c (sparc_target_macros): Handle
        TARGET_VIS4B.
        * config/sparc/sparc.h (SPARC_IMM2_P): Define.
        (SPARC_IMM5_P): Likewise.
        * config/sparc/sparc.md (cpu_feature): Add new feagure "vis4b".
        (enabled): Handle vis4b.
        (UNSPEC_DICTUNPACK): New unspec.
        (UNSPEC_FPCMPSHL): Likewise.
        (UNSPEC_FPUCMPSHL): Likewise.
        (UNSPEC_FPCMPDESHL): Likewise.
        (UNSPEC_FPCMPURSHL): Likewise.
        (cpu_feature): New CPU feature `vis4b'.
        (dictunpack{8,16,32}): New insns.
        (FPCSMODE): New mode iterator.
        (fpcscond): New code iterator.
        (fpcsucond): Likewise.
        (fpcmp{le,gt,eq,ne}{8,16,32}{si,di}shl): New insns.
        (fpcmpu{le,gt}{8,16,32}{si,di}shl): Likewise.
        (fpcmpde{8,16,32}{si,di}shl): Likewise.
        (fpcmpur{8,16,32}{si,di}shl): Likewise.
        * config/sparc/constraints.md: Define constraints `q' for unsigned
        2-bit integer constants and `t' for unsigned 5-bit integer
        constants.
        * config/sparc/predicates.md (imm5_operand_dictunpack8): New
        predicate.
        (imm5_operand_dictunpack16): Likewise.
        (imm5_operand_dictunpack32): Likewise.
        (imm2_operand): Likewise.
        * doc/invoke.texi (SPARC Options): Document -mvis4b.
        * doc/extend.texi (SPARC VIS Built-in Functions): Document the
        ditunpack* and fpcmp*shl builtins.

2017-07-07  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * config.gcc: Handle m8 in --with-{cpu,tune} options.
        * config.in: Add HAVE_AS_SPARC6 define.
        * config/sparc/driver-sparc.c (cpu_names): Add entry for the SPARC
        M8.
        * config/sparc/sol2.h (CPP_CPU64_DEFAULT_SPEC): Define for
        TARGET_CPU_m8.
        (ASM_CPU32_DEFAUILT_SPEC): Likewise.
        (CPP_CPU_SPEC): Handle m8.
        (ASM_CPU_SPEC): Likewise.
        * config/sparc/sparc-opts.h (enum processor_type): Add
        PROCESSOR_M8.
        * config/sparc/sparc.c (m8_costs): New struct.
        (sparc_option_override): Handle TARGET_CPU_m8.
        (sparc32_initialize_trampoline): Likewise.
        (sparc64_initialize_trampoline): Likewise.
        (sparc_issue_rate): Likewise.
        (sparc_register_move_cost): Likewise.
        * config/sparc/sparc.h (TARGET_CPU_m8): Define.
        (CPP_CPU64_DEFAULT_SPEC): Define for M8.
        (ASM_CPU64_DEFAULT_SPEC): Likewise.
        (CPP_CPU_SPEC): Handle M8.
        (ASM_CPU_SPEC): Likewise.
        (AS_M8_FLAG): Define.
        * config/sparc/sparc.md: Add m8 to the cpu attribute.
        * config/sparc/sparc.opt: New option -mcpu=m8 for sparc targets.
        * configure.ac (HAVE_AS_SPARC6): Check for assembler support for
        M8 instructions.
        * configure: Regenerate.
        * doc/invoke.texi (SPARC Options): Document -mcpu=m8 and
        -mtune=m8.

2017-07-07  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * config/sparc/niagara7.md: Rework the DFA scheduler to use insn
        subtypes.
        * config/sparc/sparc.md: Remove the `v3pipe' insn attribute.
        ("*movdi_insn_sp32"): Do not set v3pipe.
        ("*movsi_insn"): Likewise.
        ("*movdi_insn_sp64"): Likewise.
        ("*movsf_insn"): Likewise.
        ("*movdf_insn_sp32"): Likewise.
        ("*movdf_insn_sp64"): Likewise.
        ("*zero_extendsidi2_insn_sp64"): Likewise.
        ("*sign_extendsidi2_insn"): Likewise.
        ("*mov<VM32:mode>_insn"): Likewise.
        ("*mov<VM64:mode>_insn_sp64"): Likewise.
        ("*mov<VM64:mode>_insn_sp32"): Likewise.
        ("<plusminus_insn><VADDSUB:mode>3"): Likewise.
        ("<vlop:code><VL:mode>3"): Likewise.
        ("*not_<vlop:code><VL:mode>3"): Likewise.
        ("*nand<VL:mode>_vis"): Likewise.
        ("*<vlnotop:code>_not1<VL:mode>_vis"): Likewise.
        ("*<vlnotop:code>_not2<VL:mode>_vis"): Likewise.
        ("one_cmpl<VL:mode>2"): Likewise.
        ("faligndata<VM64:mode>_vis"): Likewise.
        ("alignaddrsi_vis"): Likewise.
        ("alignaddrdi_vis"): Likweise.
        ("alignaddrlsi_vis"): Likewise.
        ("alignaddrldi_vis"): Likewise.
        ("fcmp<gcond:code><GCM:gcm_name><P:mode>_vis"): Likewise.
        ("bmaskdi_vis"): Likewise.
        ("bmasksi_vis"): Likewise.
        ("bshuffle<VM64:mode>_vis"): Likewise.
        ("cmask8<P:mode>_vis"): Likewise.
        ("cmask16<P:mode>_vis"): Likewise.
        ("cmask32<P:mode>_vis"): Likewise.
        ("pdistn<P:mode>_vis"): Likewise.
        ("<vis3_addsub_ss_patname><VASS:mode>3"): Likewise.

2017-07-07  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * config/sparc/sparc.md ("subtype"): New insn attribute.
        ("*wrgsr_sp64"): Set insn subtype.
        ("*rdgsr_sp64"): Likewise.
        ("alignaddrsi_vis"): Likewise.
        ("alignaddrdi_vis"): Likewise.
        ("alignaddrlsi_vis"): Likewise.
        ("alignaddrldi_vis"): Likewise.
        ("<plusminus_insn><VADDSUB:mode>3"): Likewise.
        ("fexpand_vis"): Likewise.
        ("fpmerge_vis"): Likewise.
        ("faligndata<VM64:mode>_vis"): Likewise.
        ("bshuffle<VM64:mode>_vis"): Likewise.
        ("cmask8<P:mode>_vis"): Likewise.
        ("cmask16<P:mode>_vis"): Likewise.
        ("cmask32<P:mode>_vis"): Likewise.
        ("fchksm16_vis"): Likewise.
        ("v<vis3_shift_patname><GCM:mode>3"): Likewise.
        ("fmean16_vis"): Likewise.
        ("fp<plusminus_insn>64_vis"): Likewise.
        ("<plusminus_insn>v8qi3"): Likewise.
        ("<vis3_addsub_ss_patname><VASS:mode>3"): Likewise.
        ("<vis4_minmax_patname><VMMAX:mode>3"): Likewise.
        ("<vis4_uminmax_patname><VMMAX:mode>3"): Likewise.
        ("<vis3_addsub_ss_patname>v8qi3"): Likewise.
        ("<vis4_addsub_us_patname><VAUS:mode>3"): Likewise.
        ("*movqi_insn"): Likewise.
        ("*movhi_insn"): Likewise.
        ("*movsi_insn"): Likewise.
        ("movsi_pic_gotdata_op"): Likewise.
        ("*movdi_insn_sp32"): Likewise.
        ("*movdi_insn_sp64"): Likewise.
        ("movdi_pic_gotdata_op"): Likewise.
        ("*movsf_insn"): Likewise.
        ("*movdf_insn_sp32"): Likewise.
        ("*movdf_insn_sp64"): Likewise.
        ("*zero_extendhisi2_insn"): Likewise.
        ("*zero_extendqihi2_insn"): Likewise.
        ("*zero_extendqisi2_insn"): Likewise.
        ("*zero_extendqidi2_insn"): Likewise.
        ("*zero_extendhidi2_insn"): Likewise.
        ("*zero_extendsidi2_insn_sp64"): Likewise.
        ("ldfsr"): Likewise.
        ("prefetch_64"): Likewise.
        ("prefetch_32"): Likewise.
        ("tie_ld32"): Likewise.
        ("tie_ld64"): Likewise.
        ("*tldo_ldub_sp32"): Likewise.
        ("*tldo_ldub1_sp32"): Likewise.
        ("*tldo_ldub2_sp32"): Likewise.
        ("*tldo_ldub_sp64"): Likewise.
        ("*tldo_ldub1_sp64"): Likewise.
        ("*tldo_ldub2_sp64"): Likewise.
        ("*tldo_ldub3_sp64"): Likewise.
        ("*tldo_lduh_sp32"): Likewise.
        ("*tldo_lduh1_sp32"): Likewise.
        ("*tldo_lduh_sp64"): Likewise.
        ("*tldo_lduh1_sp64"): Likewise.
        ("*tldo_lduh2_sp64"): Likewise.
        ("*tldo_lduw_sp32"): Likewise.
        ("*tldo_lduw_sp64"): Likewise.
        ("*tldo_lduw1_sp64"): Likewise.
        ("*tldo_ldx_sp64"): Likewise.
        ("*mov<VM32:mode>_insn"): Likewise.
        ("*mov<VM64:mode>_insn_sp64"): Likewise.
        ("*mov<VM64:mode>_insn_sp32"): Likewise.

2017-07-07  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * config/sparc/sparc.md ("type"): New insn type viscmp.
        ("fcmp<gcond:code><GCM:gcm_name><P:mode>_vis"): Set insn type to
        viscmp.
        ("fpcmp<gcond:code>8<P:mode>_vis"): Likewise.
        ("fucmp<gcond:code>8<P:mode>_vis"): Likewise.
        ("fpcmpu<gcond:code><GCM:gcm_name><P:mode>_vis"): Likewise.
        * config/sparc/niagara7.md ("n7_vis_logical_v3pipe"): Handle
        viscmp.
        ("n7_vis_logical_11cycle"): Likewise.
        * config/sparc/niagara4.md ("n4_vis_logical"): Likewise.
        * config/sparc/niagara2.md ("niag3_vis": Likewise.
        * config/sparc/niagara.md ("niag_vis"): Likewise.
        * config/sparc/ultra3.md ("us3_fga"): Likewise.
        * config/sparc/ultra1_2.md ("us1_fga_double"): Likewise.

2017-07-07  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * config/sparc/sparc.md: New instruction type `bmask'.
        (bmaskdi_vis): Use the `bmask' type.
        (bmasksi_vis): Likewise.
        * config/sparc/ultra3.md (us3_array): Likewise.
        * config/sparc/niagara7.md (n7_array): Likewise.
        * config/sparc/niagara4.md (n4_array): Likewise.
        * config/sparc/niagara2.md (niag2_vis): Likewise.
        (niag3_vis): Likewise.
        * config/sparc/niagara.md (niag_vis): Likewise.

2017-07-06  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-comdats.c: Remove optimize check from gate.
        * ipa-fnsummary.c (ipa_fn_summary_generate): do not generate summary
        for functions not optimized.
        (ipa_fn_summary_read): Skip optimize check.
        (ipa_fn_summary_write): Likewise.
        * ipa-inline-analysis.c (do_estimate_growth_1): Check that caller
        is optimized.
        * ipa-inline.c (can_inline_edge_p): Not optimized functions are
        uninlinable.
        (can_inline_edge_p): Check flag_pcc_struct_return for match.
        (check_callers): Give up on caller which is not optimized.
        (inline_small_functions): Likewise.
        (ipa_inline): Do not give up when not optimizing.
        * ipa-visbility.c (function_and_variable_visibility): Do not optimize
        away unoptimizes cdtors.
        (whole_program_function_and_variable_visibility): Do
        ipa_discover_readonly_nonaddressable_vars in LTO mode.
        * ipa.c (process_references): Do not check optimize.
        (symbol_table::remove_unreachable_nodes): Update optimize check.
        (set_writeonly_bit): Update optimize check.
        (pass_ipa_cdtor_merge::gate): Do not check optimize.
        (pass_ipa_single_use::gate): Remove.

2017-07-06  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (union_defs, union_uses, insn_is_load_p,
        insn_is_store_p, insn_is_swap_p, const_load_sequence_p, v2df_reduction_p,
        rtx_is_swappable_p, insn_is_swappable_p, chain_contains_only_swaps,
        mark_swaps_for_removal, swap_const_vector_halves, adjust_subreg_index,
        permute_load, permute_store, adjust_extract, adjust_splat,
        adjust_xxpermdi, adjust_concat, adjust_vperm, handle_special_swappables,
        replace_swap_with_copy, dump_swap_insn_table,
        alignment_with_canonical_addr, alignment_mask, find_alignment_op,
        recombine_lvx_pattern, recombine_stvx_pattern,
        recombine_lvx_stvx_patterns, rs6000_analyze_swaps,
        make_pass_analyze_swaps): Move all code related to p8 swap optimizations
        to file rs6000-p8swap.c.
        * config/rs6000/rs6000-p8swap.c: New file.
        * config/rs6000/t-rs6000: Add rule to build rs6000-p8swap.o.
        * config.gcc: Add rs6000-p8swap.o to extra_objs for powerpc*-*-*
        and rs6000*-*-* targets.

2017-07-06  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (selftest): Remove dependency on s-selftest-c++.

2017-07-06  Jan Hubicka  <hubicka@ucw.cz>

        * lto-wrapper.c (merge_and_complain): Do not merge
        fexceptions, fnon_call_exceptions, ftrapv, ffp_contract_, fmath_errno,
        fsigned_zeros, ftrapping_math, fwrapv.
        (append_compiler_options): Do not track these options.
        (append_linker_options): Likewie

2017-07-06  Jan Hubicka  <hubicka@ucw.cz>

        * cgraphunit.c (cgraph_node::finalize_function): When
        !flag_toplevel_reorde set no_reorder flag.
        (varpool_node::finalize_decl): Likewise.
        (symbol_table::compile): Drop no toplevel reorder path.

2017-07-06  Jan Hubicka  <hubicka@ucw.cz>

        * bb-reorder.c (better_edge_p): Do not build traces across abnormal/eh
        edges; zero probability is not better than uninitialized.

2017-07-06  Maxim Ostapenko  <m.ostapenko@samsung.com>

        * asan.h (asan_sanitize_allocas_p): Declare.
        * asan.c (asan_sanitize_allocas_p): New function.
        (handle_builtin_stack_restore): Bail out if !asan_sanitize_allocas_p.
        (handle_builtin_alloca): Likewise.
        * cfgexpand.c (expand_used_vars): Do not add allocas unpoisoning stuff
        if !asan_sanitize_allocas_p.
        * params.def (asan-instrument-allocas): Add new option.
        * params.h (ASAN_PROTECT_ALLOCAS): Define.
        * opts.c (common_handle_option): Disable allocas sanitization for
        KASan by default.

2017-07-06  Maxim Ostapenko  <m.ostapenko@samsung.com>

        * asan.c: Include gimple-fold.h.
        (get_last_alloca_addr): New function.
        (handle_builtin_stackrestore): Likewise.
        (handle_builtin_alloca): Likewise.
        (asan_emit_allocas_unpoison): Likewise.
        (get_mem_refs_of_builtin_call): Add new parameter, remove const
        quallifier from first paramerer. Handle BUILT_IN_ALLOCA,
        BUILT_IN_ALLOCA_WITH_ALIGN and BUILT_IN_STACK_RESTORE builtins.
        (instrument_builtin_call): Pass gimple iterator to
        get_mem_refs_of_builtin_call.
        (last_alloca_addr): New global.
        * asan.h (asan_emit_allocas_unpoison): Declare.
        * builtins.c (expand_asan_emit_allocas_unpoison): New function.
        (expand_builtin): Handle BUILT_IN_ASAN_ALLOCAS_UNPOISON.
        * cfgexpand.c (expand_used_vars): Call asan_emit_allocas_unpoison
        if function calls alloca.
        * gimple-fold.c (replace_call_with_value): Remove static keyword.
        * gimple-fold.h (replace_call_with_value): Declare.
        * internal-fn.c: Include asan.h.
        * sanitizer.def (BUILT_IN_ASAN_ALLOCA_POISON,
        BUILT_IN_ASAN_ALLOCAS_UNPOISON): New builtins.

2017-07-06  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (SELFTEST_FLAGS): Drop "-x c", moving it to...
        (C_SELFTEST_FLAGS): New.
        (CPP_SELFTEST_FLAGS): New.
        (SELFTEST_DEPS): New, from deps of s-selftest.
        (C_SELFTEST_DEPS): New, from deps of s-selftest.
        (CPP_SELFTEST_DEPS): New.
        (selftest): Add dependency on s-selftest-c++.
        (s-selftest): Rename to...
        (s-selftest-c): ...this, moving deps to SELFTEST_DEPS
        and C_SELFTEST_DEPS, and using C_SELFTEST_FLAGS rather
        than SELFTEST_FLAGS.
        (selftest-gdb): Rename to...
        (selftest-c-gdb): ...this, using C_SELFTEST_DEPS and
        C_SELFTEST_FLAGS.
        (selftest-gdb): Reintroduce as an alias for selftest-c-gdb.
        (selftest-valgrind): Rename to...
        (selftest-c-valgrind): ...this, using C_SELFTEST_DEPS and
        C_SELFTEST_FLAGS.
        (selftest-valgrind): Reintroduce as an alias for
        selftest-c-valgrind.
        (s-selftest-c++): New.
        (selftest-c++-gdb): New.
        (selftest-c++-valgrind): New.

2017-07-06  Olivier Hainque  <hainque@adacore.com>

        * gcc.c (process_command): When deciding if undefined variables
        should be ignored when processing specs, accept "gcc -v" as well.

2017-07-06  Jan Hubicka  <hubicka@ucw.cz>

        * auto-profile.c (afdo_set_bb_count, afdo_propagate_edge,
        afdo_annotate_cfg): Set counts/probabilities as determined by afdo.

2017-07-06  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-cpus.in (armv8-r): Add new entry.
        * config/arm/arm-isa.h (ISA_ARMv8r): Define macro.
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/arm.h (enum base_architecture): Add BASE_ARCH_8R
        enumerator.
        * doc/invoke.texi: Mention -march=armv8-r and its extensions.

2017-07-06  Carl Love  <cel@us.ibm.com>

        * ChangeLog: Clean up from mid air collision

2017-07-06  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c.c: Add support for built-in functions
        vector signed int vec_subc (vector signed int, vector signed int);
        vector signed __int128 vec_subc (vector signed __int128,
                                         vector signed __int128);
        vector unsigned __int128 vec_subc (vector unsigned __int128,
                                           vector unsigned __int128);
        vector signed int vec_sube (vector signed int, vector signed int,
                                    vector signed int);
        vector unsigned int vec_sube (vector unsigned int,
                                      vector unsigned int,
                                      vector unsigned int);
        vector signed __int128 vec_sube (vector signed __int128,
                                         vector signed __int128,
                                         vector signed__int128);
        vector unsigned __int128 vec_sube (vector unsigned __int128,
                                           vector unsigned __int128,
                                           vector unsigned __int128);
        vector signed int vec_subec (vector signed int, vector signed int,
                                     vector signed int);
        vector unsigned int vec_subec (vector unsigned int,
                                       vector unsigned int,
                                       vector unsigned int);
        vector signed __int128 vec_subec (vector signed __int128,
                                          vector signed __int128,
                                          vector signed__int128);
        vector unsigned __int128 vec_subec (vector unsigned __int128,
                                            vector unsigned __int128,
                                            vector unsigned __int128);
        * config/rs6000/rs6000.c (ALTIVEC_BUILTIN_VEC_SUBE,
        ALTIVEC_BUILTIN_VEC_SUBEC): Add ef_builtins.
        * config/rs6000/rs6000-builtin.def (SUBE, SUBEC): Add
        BU_ALTIVEC_OVERLOAD_X definitions.
        * config/rs6000/altivec.h (vec_sube, vec_subec): Add builtin defines.
        * doc/extend.texi: Update the built-in documentation file for the new
        built-in functions.

2017-07-06  David Malcolm  <dmalcolm@redhat.com>

        PR c++/79300
        * diagnostic-show-locus.c (layout::layout): Use start and finish
        spelling location for the start and finish of each range.
        * genmatch.c (linemap_client_expand_location_to_spelling_point):
        Add unused aspect param.
        * input.c (expand_location_1): Add "aspect" param, and use it
        to access the correct part of the location.
        (expand_location): Pass LOCATION_ASPECT_CARET to new param of
        expand_location_1.
        (expand_location_to_spelling_point): Likewise.
        (linemap_client_expand_location_to_spelling_point): Add "aspect"
        param, and pass it to expand_location_1.

2017-07-06  Sebastian Peryt  <sebastian.peryt@intel.com>

        * config/i386/avx512fintrin.h (_mm_mask_getexp_round_ss,
        _mm_maskz_getexp_round_ss, _mm_mask_getexp_round_sd,
        _mm_maskz_getexp_round_sd, _mm_mask_getmant_round_sd,
        _mm_maskz_getmant_round_sd, _mm_mask_getmant_round_ss,
        _mm_maskz_getmant_round_ss, _mm_mask_getexp_ss, _mm_maskz_getexp_ss,
        _mm_mask_getexp_sd, _mm_maskz_getexp_sd, _mm_mask_getmant_sd,
        _mm_maskz_getmant_sd, _mm_mask_getmant_ss,
        _mm_maskz_getmant_ss): New intrinsics.
        (__builtin_ia32_getexpss128_mask): Changed to ...
        __builtin_ia32_getexpss128_round ... this.
        (__builtin_ia32_getexpsd128_mask): Changed to ...
        __builtin_ia32_getexpsd128_round ... this.
        * config/i386/i386-builtin-types.def
        ((V2DF, V2DF, V2DF, INT, V2DF, UQI, INT),
        (V4SF, V4SF, V4SF, INT, V4SF, UQI, INT)): New function type aliases.
        * config/i386/i386-builtin.def (__builtin_ia32_getexpsd_mask_round,
        __builtin_ia32_getexpss_mask_round,     __builtin_ia32_getmantsd_mask_round,
        __builtin_ia32_getmantss_mask_round): New builtins.
        * config/i386/i386.c (V2DF_FTYPE_V2DF_V2DF_INT_V2DF_UQI_INT,
        V4SF_FTYPE_V4SF_V4SF_INT_V4SF_UQI_INT): Handle new types.
        (CODE_FOR_avx512f_vgetmantv2df_mask_round,
        CODE_FOR_avx512f_vgetmantv4sf_mask_round): New cases.
        * config/i386/sse.md
        (avx512f_sgetexp<mode><round_saeonly_name>): Changed to ...
        avx512f_sgetexp<mode><mask_scalar_name>
        <round_saeonly_scalar_name> ... this.
        (vgetexp<ssescalarmodesuffix>\t{<round_saeonly_op3>%2, %1, %0|
        %0, %1, %2<round_saeonly_op3>}): Changed to ...
        vgetexp<ssescalarmodesuffix>
        \t{<round_saeonly_scalar_mask_op3>%2, %1, %0<mask_scalar_operand3>|
        %0<mask_scalar_operand3>, %1, %2<round_saeonly_scalar_mask_op3>} ... this.
        (avx512f_vgetmant<mode><round_saeonly_name>): Changed to ...
        avx512f_vgetmant<mode><mask_scalar_name>
        <round_saeonly_scalar_name> ... this.
        (vgetmant<ssescalarmodesuffix>\t{%3, <round_saeonly_op4>%2, %1, %0|
        %0, %1, %2<round_saeonly_op4>, %3}): Changed to ...
        vgetmant<ssescalarmodesuffix>
        \t{%3, <round_saeonly_scalar_mask_op4>%2, %1, %0<mask_scalar_operand4>|
        %0<mask_scalar_operand4>, %1, %2
        <round_saeonly_scalar_mask_op4>, %3} ... this.
        * config/i386/subst.md (mask_scalar_operand4,
        round_saeonly_scalar_mask_operand4,     round_saeonly_scalar_mask_op4,
        round_saeonly_scalar_nimm_predicate): New subst attributes.

2017-07-06  Julia Koval  <julia.koval@intel.com>

        * config/i386/i386.c (ix86_erase_embedded_rounding):
        Remove code for old rounding pattern.

2017-07-06  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/t-arm (GTM_H): Add arm-cpu.h.

2017-07-06  Christophe Lyon  <christophe.lyon@linaro.org>

        * doc/sourcebuild.texi (Test Directives, Variants of
        dg-require-support): Add documentation for dg-require-stack-check.

2017-07-05  Sebastian Peryt  <sebastian.peryt@intel.com>

        * config/i386/subst.md (mask_scalar, round_scalar,
        round_saeonly_scalar): New meta-templates.
        (mask_scalar_name, mask_scalar_operand3, round_scalar_name,
        round_scalar_mask_operand3, round_scalar_mask_op3,
        round_scalar_constraint, round_scalar_prefix, round_saeonly_scalar_name,
        round_saeonly_scalar_mask_operand3, round_saeonly_scalar_mask_op3,
        round_saeonly_scalar_constraint,
        round_saeonly_scalar_prefix): New subst attribute.
        * config/i386/sse.md
        (<sse>_vm<plusminus_insn><mode>3<mask_name><round_name>): Renamed to ...
        <sse>_vm<plusminus_insn><mode>3<mask_scalar_name>
        <round_scalar_name> ... this.
        (<sse>_vm<multdiv_mnemonic><mode>3<mask_name><round_name>): Renamed to ...
        <sse>_vm<multdiv_mnemonic><mode>3<mask_scalar_name>
        <round_scalar_name> ... this.
        (<sse>_vm<code><mode>3<mask_name><round_saeonly_name>): Renamed to ...
        <sse>_vm<code><mode>3<mask_scalar_name>
        <round_saeonly_scalar_name> ... this.
        (v<plusminus_mnemonic><ssescalarmodesuffix>
        \t{<round_mask_op3>%2, %1, %0<mask_operand3>|
        %0<mask_operand3>, %1, %<iptr>2<round_mask_op3>}): Changed to ...
        v<plusminus_mnemonic><ssescalarmodesuffix>
        \t{<round_scalar_mask_op3>%2, %1, %0<mask_scalar_operand3>|
        %0<mask_scalar_operand3>, %1, %<iptr>2<round_scalar_mask_op3>} ... this.
        (v<multdiv_mnemonic><ssescalarmodesuffix>
        \t{<round_mask_op3>%2, %1, %0<mask_operand3>|
        %0<mask_operand3>, %1, %<iptr>2<round_mask_op3>}): Changed to ...
        v<multdiv_mnemonic><ssescalarmodesuffix>
        \t{<round_scalar_mask_op3>%2, %1, %0<mask_scalar_operand3>|
        %0<mask_scalar_operand3>, %1, %<iptr>2<round_scalar_mask_op3>} ... this.
        (v<maxmin_float><ssescalarmodesuffix>
        \t{<round_saeonly_mask_op3>%2, %1, %0<mask_operand3>|
        %0<mask_operand3>, %1, %<iptr>2<round_saeonly_mask_op3>}): Changed to ...
        v<maxmin_float><ssescalarmodesuffix>
        \t{<round_saeonly_scalar_mask_op3>%2, %1, %0<mask_scalar_operand3>|
        %0<mask_scalar_operand3>, %1, %<iptr>2
        <round_saeonly_scalar_mask_op3>} ... this.

2017-07-05  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.c (arm_fixed_condition_code_regs): New function.
        (TARGET_FIXED_CONDITION_CODE_REGS): Redefine.

2017-07-05  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * combine.c (simplify_if_then_else): Remove "enum" before
        "machine_mode".
        * compare-elim.c (can_eliminate_compare): Likewise.
        * config/aarch64/aarch64-builtins.c (aarch64_simd_builtin_std_type):
        Likewise.
        (aarch64_lookup_simd_builtin_type): Likewise.
        (aarch64_simd_builtin_type): Likewise.
        (aarch64_init_simd_builtin_types): Likewise.
        (aarch64_simd_expand_args): Likewise.
        * config/aarch64/aarch64-protos.h (aarch64_simd_attr_length_rglist):
        Likewise.
        (aarch64_reverse_mask): Likewise.
        (aarch64_simd_emit_reg_reg_move): Likewise.
        (aarch64_gen_adjusted_ldpstp): Likewise.
        (aarch64_ccmp_mode_to_code): Likewise.
        (aarch64_operands_ok_for_ldpstp): Likewise.
        (aarch64_operands_adjust_ok_for_ldpstp): Likewise.
        * config/aarch64/aarch64.c (aarch64_ira_change_pseudo_allocno_class):
        Likewise.
        (aarch64_min_divisions_for_recip_mul): Likewise.
        (aarch64_reassociation_width): Likewise.
        (aarch64_get_condition_code_1): Likewise.
        (aarch64_simd_emit_reg_reg_move): Likewise.
        (aarch64_simd_attr_length_rglist): Likewise.
        (aarch64_reverse_mask): Likewise.
        (aarch64_operands_ok_for_ldpstp): Likewise.
        (aarch64_operands_adjust_ok_for_ldpstp): Likewise.
        (aarch64_gen_adjusted_ldpstp): Likewise.
        * config/aarch64/cortex-a57-fma-steering.c (fma_node::rename):
        Likewise.
        * config/arc/arc.c (legitimate_offset_address_p): Likewise.
        * config/arm/arm-builtins.c (arm_simd_builtin_std_type): Likewise.
        (arm_lookup_simd_builtin_type): Likewise.
        (arm_simd_builtin_type): Likewise.
        (arm_init_simd_builtin_types): Likewise.
        (arm_expand_builtin_args): Likewise.
        * config/arm/arm-protos.h (arm_expand_builtin): Likewise.
        * config/ft32/ft32.c (ft32_libcall_value): Likewise.
        (ft32_setup_incoming_varargs): Likewise.
        (ft32_function_arg): Likewise.
        (ft32_function_arg_advance): Likewise.
        (ft32_pass_by_reference): Likewise.
        (ft32_arg_partial_bytes): Likewise.
        (ft32_valid_pointer_mode): Likewise.
        (ft32_addr_space_pointer_mode): Likewise.
        (ft32_addr_space_legitimate_address_p): Likewise.
        * config/i386/i386-protos.h (ix86_operands_ok_for_move_multiple):
        Likewise.
        * config/i386/i386.c (ix86_setup_incoming_vararg_bounds): Likewise.
        (ix86_emit_outlined_ms2sysv_restore): Likewise.
        (iamcu_alignment): Likewise.
        (canonicalize_vector_int_perm): Likewise.
        (ix86_noce_conversion_profitable_p): Likewise.
        (ix86_mpx_bound_mode): Likewise.
        (ix86_operands_ok_for_move_multiple): Likewise.
        * config/microblaze/microblaze-protos.h
        (microblaze_expand_conditional_branch_reg): Likewise.
        * config/microblaze/microblaze.c
        (microblaze_expand_conditional_branch_reg): Likewise.
        * config/powerpcspe/powerpcspe.c (rs6000_init_hard_regno_mode_ok):
        Likewise.
        (rs6000_reassociation_width): Likewise.
        (rs6000_invalid_binary_op): Likewise.
        (fusion_p9_p): Likewise.
        (emit_fusion_p9_load): Likewise.
        (emit_fusion_p9_store): Likewise.
        * config/riscv/riscv-protos.h (riscv_regno_mode_ok_for_base_p):
        Likewise.
        (riscv_hard_regno_mode_ok_p): Likewise.
        (riscv_address_insns): Likewise.
        (riscv_split_symbol): Likewise.
        (riscv_legitimize_move): Likewise.
        (riscv_function_value): Likewise.
        (riscv_hard_regno_nregs): Likewise.
        (riscv_expand_builtin): Likewise.
        * config/riscv/riscv.c (riscv_build_integer_1): Likewise.
        (riscv_build_integer): Likewise.
        (riscv_split_integer): Likewise.
        (riscv_legitimate_constant_p): Likewise.
        (riscv_cannot_force_const_mem): Likewise.
        (riscv_regno_mode_ok_for_base_p): Likewise.
        (riscv_valid_base_register_p): Likewise.
        (riscv_valid_offset_p): Likewise.
        (riscv_valid_lo_sum_p): Likewise.
        (riscv_classify_address): Likewise.
        (riscv_legitimate_address_p): Likewise.
        (riscv_address_insns): Likewise.
        (riscv_load_store_insns): Likewise.
        (riscv_force_binary): Likewise.
        (riscv_split_symbol): Likewise.
        (riscv_force_address): Likewise.
        (riscv_legitimize_address): Likewise.
        (riscv_move_integer): Likewise.
        (riscv_legitimize_const_move): Likewise.
        (riscv_legitimize_move): Likewise.
        (riscv_address_cost): Likewise.
        (riscv_subword): Likewise.
        (riscv_output_move): Likewise.
        (riscv_canonicalize_int_order_test): Likewise.
        (riscv_emit_int_order_test): Likewise.
        (riscv_function_arg_boundary): Likewise.
        (riscv_pass_mode_in_fpr_p): Likewise.
        (riscv_pass_fpr_single): Likewise.
        (riscv_pass_fpr_pair): Likewise.
        (riscv_get_arg_info): Likewise.
        (riscv_function_arg): Likewise.
        (riscv_function_arg_advance): Likewise.
        (riscv_arg_partial_bytes): Likewise.
        (riscv_function_value): Likewise.
        (riscv_pass_by_reference): Likewise.
        (riscv_setup_incoming_varargs): Likewise.
        (riscv_print_operand): Likewise.
        (riscv_elf_select_rtx_section): Likewise.
        (riscv_save_restore_reg): Likewise.
        (riscv_for_each_saved_reg): Likewise.
        (riscv_register_move_cost): Likewise.
        (riscv_hard_regno_mode_ok_p): Likewise.
        (riscv_hard_regno_nregs): Likewise.
        (riscv_class_max_nregs): Likewise.
        (riscv_memory_move_cost): Likewise.
        * config/rl78/rl78-protos.h (rl78_split_movsi): Likewise.
        * config/rl78/rl78.c (rl78_split_movsi): Likewise.
        (rl78_addr_space_address_mode): Likewise.
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        Likewise.
        * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Likewise.
        (rs6000_reassociation_width): Likewise.
        (rs6000_invalid_binary_op): Likewise.
        (fusion_p9_p): Likewise.
        (emit_fusion_p9_load): Likewise.
        (emit_fusion_p9_store): Likewise.
        * config/visium/visium-protos.h (prepare_move_operands): Likewise.
        (ok_for_simple_move_operands): Likewise.
        (ok_for_simple_move_strict_operands): Likewise.
        (ok_for_simple_arith_logic_operands): Likewise.
        (visium_legitimize_reload_address): Likewise.
        (visium_select_cc_mode): Likewise.
        (output_cbranch): Likewise.
        (visium_split_double_move): Likewise.
        (visium_expand_copysign): Likewise.
        (visium_expand_int_cstore): Likewise.
        (visium_expand_fp_cstore): Likewise.
        * config/visium/visium.c (visium_pass_by_reference): Likewise.
        (visium_function_arg): Likewise.
        (visium_function_arg_advance): Likewise.
        (visium_libcall_value): Likewise.
        (visium_setup_incoming_varargs): Likewise.
        (visium_legitimate_constant_p): Likewise.
        (visium_legitimate_address_p): Likewise.
        (visium_legitimize_address): Likewise.
        (visium_secondary_reload): Likewise.
        (visium_register_move_cost): Likewise.
        (visium_memory_move_cost): Likewise.
        (prepare_move_operands): Likewise.
        (ok_for_simple_move_operands): Likewise.
        (ok_for_simple_move_strict_operands): Likewise.
        (ok_for_simple_arith_logic_operands): Likewise.
        (visium_function_value_1): Likewise.
        (rtx_ok_for_offset_p): Likewise.
        (visium_legitimize_reload_address): Likewise.
        (visium_split_double_move): Likewise.
        (visium_expand_copysign): Likewise.
        (visium_expand_int_cstore): Likewise.
        (visium_expand_fp_cstore): Likewise.
        (visium_split_cstore): Likewise.
        (visium_select_cc_mode): Likewise.
        (visium_split_cbranch): Likewise.
        (output_cbranch): Likewise.
        (visium_print_operand_address): Likewise.
        * expmed.c (flip_storage_order): Likewise.
        * expmed.h (emit_cstore): Likewise.
        (flip_storage_order): Likewise.
        * genrecog.c (validate_pattern): Likewise.
        * hsa-gen.c (gen_hsa_addr): Likewise.
        * internal-fn.c (expand_arith_overflow): Likewise.
        * ira-color.c (allocno_copy_cost_saving): Likewise.
        * lra-assigns.c (find_hard_regno_for_1): Likewise.
        * lra-constraints.c (prohibited_class_reg_set_mode_p): Likewise.
        (process_invariant_for_inheritance): Likewise.
        * lra-eliminations.c (move_plus_up): Likewise.
        * omp-low.c (lower_oacc_reductions): Likewise.
        * simplify-rtx.c (simplify_subreg): Likewise.
        * target.def (TARGET_SETUP_INCOMING_VARARG_BOUNDS): Likewise.
        (TARGET_CHKP_BOUND_MODE): Likewise..
        * targhooks.c (default_chkp_bound_mode): Likewise.
        (default_setup_incoming_vararg_bounds): Likewise.
        * targhooks.h (default_chkp_bound_mode): Likewise.
        (default_setup_incoming_vararg_bounds): Likewise.
        * tree-ssa-math-opts.c (divmod_candidate_p): Likewise.
        * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Likewise.
        (have_whole_vector_shift): Likewise.
        * tree-vect-stmts.c (vectorizable_load): Likewise.
        * doc/tm.texi: Regenerate.

2017-07-05  Georg-Johann Lay  <avr@gjlay.de>

        Graceful degrade if Binutils PR21472 is not available.

        PR target/81072
        * configure.ac [target=avr]: WARN instead of ERROR if avrxmega3
        .rodata in flash test fails.
        (HAVE_LD_AVR_AVRXMEGA3_RODATA_IN_FLASH): Define it if test passes.
        * confgure: Regenerate.
        * config.in: Regenerate.
        * config/avr/avr.c (avr_asm_named_section)
        [HAVE_LD_AVR_AVRXMEGA3_RODATA_IN_FLASH]: Only trigger
        __do_copy_data for stuff in .rodata if flash_pm_offset = 0.
        (avr_asm_init_sections): Same.

2017-07-05  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/arm/neon.md (fma<VCVTF:mode>4): Remove %?.
        (fma<VH:mode>4_intrinsic): Likewise.
        (*fmsub<VCVTF:mode>4): Likewise.
        (*fmsub<VH:mode>4_intrinsic): Likewise.

2017-07-05  Georg-Johann Lay  <avr@gjlay.de>

        PR target/81305
        * config/avr/avr.c (avr_out_movhi_mr_r_xmega) [CONSTANT_ADDRESS_P]:
        Don't depend on "optimize > 0".
        (out_movhi_r_mr, out_movqi_mr_r): Same.
        (out_movhi_mr_r, out_movqi_r_mr): Same.
        (avr_address_cost) [CONSTANT_ADDRESS_P]: Don't depend cost for
        io_address_operand on "optimize > 0".

2017-07-05  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c: Add general explanantion on the pass.
        (generate_loops_for_partition): Mark distributed loop.
        (pg_add_dependence_edges): New parameter.  Handle alias data
        dependence specially and record it in the parameter if asked.
        (struct pg_vdata, pg_edata, pg_edge_callback_data): New structs.
        (init_partition_graph_vertices, add_partition_graph_edge): New.
        (pg_skip_alias_edge, free_partition_graph_edata_cb): New.
        (free_partition_graph_vdata, build_partition_graph): New.
        (sort_partitions_by_post_order, merge_dep_scc_partitions): New.
        (pg_collect_alias_ddrs, break_alias_scc_partitions): New.
        (data_ref_segment_size, latch_dominated_by_data_ref): New.
        (compute_alias_check_pairs, version_loop_by_alias_check): New.
        (version_for_distribution_p, finalize_partitions): New.
        (distribute_loop): Handle alias data dependence specially.  Factor
        out loop fusion code as functions and call these functions.

2017-07-05  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (classify_partition): New parameter and
        better handle reduction statement.
        (rdg_build_partitions): Revise comment.
        (distribute_loop): Compute statements in all partitions and pass it
        to classify_partition.

2017-07-05  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (enum partition_type): New.
        (struct partition): New field type.
        (partition_merge_into): Add parameter.  Update partition type.
        (data_dep_in_cycle_p, update_type_for_merge): New functions.
        (build_rdg_partition_for_vertex): Compute partition type.
        (rdg_build_partitions): Dump partition type.
        (distribute_loop): Update calls to partition_merge_into.

2017-07-05  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (struct ddr_hasher): New.
        (ddr_hasher::hash, ::equal, get_data_dependence): New function.
        (ddrs_table): New.
        (classify_partition): Call get_data_dependence.
        (pg_add_dependence_edges): Ditto.
        (distribute_loop): Release data dependence hash table.

2017-07-05  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (ref_base_address): Delete.
        (similar_memory_accesses): Rename ...
        (share_memory_accesses): ... to this.  Check if partitions access
        the same memory reference.
        (distribute_loop): Call share_memory_accesses.

2017-07-05  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (struct partition): New field recording
        its data reference.
        (partition_alloc, partition_free): Init and release data refs.
        (partition_merge_into): Merge data refs.
        (build_rdg_partition_for_vertex): Collect data refs for partition.
        (pg_add_dependence_edges): Change parameters from vector to bitmap.
        Update uses.
        (distribute_loop): Remve data refs from vertice data of partition
        graph.

2017-07-05  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (params.h): Include header file.
        (MAX_DATAREFS_NUM, DR_INDEX): New macro.
        (datarefs_vec): New global var.
        (create_rdg_vertices): Use datarefs_vec directly.
        (free_rdg): Don't free data references.
        (build_rdg): Update use.  Don't free data references.
        (distribute_loop): Compute global variable for data references.
        Bail out if there are too many data references.

2017-07-05  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (loop_nest): New global var.
        (build_rdg): Use loop directly, rather than loop nest.
        (pg_add_dependence_edges): Remove loop nest parameter.  Use global
        variable directly.
        (distribute_loop): Compute global variable loop nest.  Update use.

2017-07-05  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (enum fuse_type, fuse_message): New.
        (partition_merge_into): New parameter.  Dump reason for fusion.
        (distribute_loop): Update use of partition_merge_into.

2017-07-05  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (bb_top_order_index): New.
        (bb_top_order_index_size, bb_top_order_cmp): New.
        (stmts_from_loop): Use topological order.
        (pass_loop_distribution::execute): Compute and release topological
        order for basic blocks.

2017-07-05  Bin Cheng  <bin.cheng@arm.com>

        * tree-loop-distribution.c (pass_loop_distribution::execute): Skip
        if no loops.

2017-07-05  Bin Cheng  <bin.cheng@arm.com>

        * cfgloop.h (struct loop): Add comment.  New field orig_loop_num.
        * cfgloopmanip.c (lv_adjust_loop_entry_edge): Comment change.
        * internal-fn.c (expand_LOOP_DIST_ALIAS): New function.
        * internal-fn.def (LOOP_DIST_ALIAS): New.
        * tree-vectorizer.c (fold_loop_vectorized_call): Rename to ...
        (fold_loop_internal_call): ... this.
        (vect_loop_dist_alias_call): New function.
        (set_uid_loop_bbs): Call fold_loop_internal_call.
        (vectorize_loops): Fold IFN_LOOP_VECTORIZED and IFN_LOOP_DIST_ALIAS
        internal calls.

2017-07-04  Uros Bizjak  <ubizjak@gmail.com>

        PR target/81300
        * config/i386/i386.md (setcc + movzbl/and to xor + setcc peepholes):
        Require dead FLAGS_REG at the beginning of a peephole.

2017-07-04  Uros Bizjak  <ubizjak@gmail.com>

        PR target/81294
        * config/i386/adxintrin.h (_subborrow_u32): Swap _X and _Y
        arguments in the call to __builtin_ia32_sbb_u32.
        (_subborrow_u64): Swap _X and _Y arguments in the call to
        __builtin_ia32_sbb_u64.

2017-07-04  Jakub Jelinek  <jakub@redhat.com>

        PR debug/81278
        * tree-vrp.c (compare_assert_loc): Turn into a function template
        with stable template parameter.  Only test if a->e is NULL,
        !a->e == !b->e has been verified already.  Use e == NULL or
        e != NULL instead of e or ! e tests.  If stable is true, don't use
        iterative_hash_expr, on the other side allow a or b or both NULL
        and sort the NULLs last.
        (process_assert_insertions): Sort using compare_assert_loc<false>
        instead of compare_assert_loc, later sort using
        compare_assert_loc<true> before calling process_assert_insertions_for
        in a loop.  Use break instead of continue once seen NULL pointer.

2017-07-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/driver-arm.c (arm_cpu_table): Add entry for ARM
        Cortex-R7 and Cortex-R8 processors.

2017-07-04  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-utils.c (ipa_merge_profiles): Fix merging when dst is
        uninitialized while src is not.

2017-07-04  Richard Earnshaw  <rearnsha@arm.com>

        * common/config/arm/arm-common.c: Adjust include path for
        arm-cpu-cdata.h
        * config/arm/t-arm (TM_H): Adjust path for arm-cpu.h.
        (arm-cpu.h): Create in build directory.  Adjust dependency rules.
        (arm-cpu-data.h): Likewise.
        (arm-cpu-cdata.h): Likewise.
        * config/arm/arm-cpu.h: Delete.
        * config/arm/arm-cpu-cdata.h: Delete.
        * config/arm/arm-cpu-data.h: Delete.

2017-07-04  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/arm/arm-cpus.in (cortex-a55): New.
        (cortex-a75): Likewise.
        (cortex-a75.cortex-a55): Likewise.
        * config/arm/driver-arm.c (arm_cpu_table): Add cortex-a55 and
        cortex-a75.
        * doc/invoke.texi (-mcpu): Document cortex-a55 and cortex-a75.
        * config/arm/arm-cpu-cdata.h: Regenerate.
        * config/arm/arm-cpu-data.h: Regenerate.
        * config/arm/arm-cpu.h: Regenerate.
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/arm-tune.md: Regenerate.

2017-07-04  Jan Hubicka  <hubicka@ucw.cz>

        * haifa-sched.c (sched_create_recovery_edges): Update profile.

2017-07-04  Jan Hubicka  <hubicka@ucw.cz>

        * bb-reorder.c (better_edge_p): Fix handling of uninitialized
        probability.

2017-07-04  Richard Sandiford  <richard.sandiford@linaro.org>

        PR tree-optimization/81292
        * tree-ssa-strlen.c (handle_builtin_strlen): When setting
        full_string_p, also call adjust_related_strinfos if the adjustment
        is simple, otherwise invalidate related strinfos.

2017-07-04  Martin Liska  <mliska@suse.cz>

        PR sanitizer/81040
        * sanopt.c (sanitize_rewrite_addressable_params): Mark the
        newly created variable as DECL_IGNORED_P.

2017-07-04  Martin Liska  <mliska@suse.cz>

        PR ipa/81293
        * ipa-inline.c (inline_small_functions):
        Use xstrdup_for_dump.

2017-07-04  Tom de Vries  <tom@codesourcery.com>

        * graph.c (draw_cfg_edges): Save and restore EDGE_DFS_BACK.

2017-07-03  Dominique d'Humieres  <dominiq@lps.ens.fr>

        PR target/81033
        * config/darwin.c (darwin_function_switched_text_sections):
        Fix spaces.

2017-07-03  Jan Hubicka  <hubicka@ucw.cz>

        * tree-vect-loop-manip.c (vect_do_peeling): Fix scaling up.

2017-07-03  Richard Earnshaw  <rearnsha@arm.com>

        * doc/invoke.texi (ARM Options): Add -mbe8 and -mbe32 to option summary.

2017-07-03  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-vect-loop.c (vect_analyze_loop_2): Treat min_scalar_loop_bound,
        min_profitable_iters, and th as inclusive lower bounds.
        Fix LOOP_VINFO_PEELING_FOR_GAPS condition.
        (vect_estimate_min_profitable_iters): Return inclusive lower bounds
        for min_profitable_iters and min_profitable_estimate.
        (vect_transform_loop): Treat th as an inclusive lower bound.
        * tree-vect-loop-manip.c (vect_loop_versioning): Likewise.

2017-07-03  Dominique d'Humieres  <dominiq@lps.ens.fr>

        PR target/81033
        * config/darwin.c (darwin_function_switched_text_sections):
        Replace DECL_NAME with DECL_ASSEMBLER_NAME, split assemble_name_raw
        in two pieces, and suppress the use of buf.

2017-07-03  Nathan Sidwell  <nathan@acm.org>

        * hash-table.h (hash_table_mod1): Fix indentation.

2017-07-02  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/81290
        * predict.c (force_edge_cold): Be more careful about propagation
        backward.
        * profile-count.h (profile_probability::guessed,
        profile_probability::fdo, profile_count::guessed, profile_count::fdo):
        New.
        * tree-ssa-threadupdate.c (recompute_probabilities): Result is guessed.

2017-07-03  James Greenhalgh  <james.greenhalgh@arm.com>

        * doc/invoke.texi (rcpc architecture extension): Document it.

2017-07-03  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/60510
        * tree-vect-loop.c (vect_create_epilog_for_reduction): Pass in
        the scalar reduction PHI and use it.
        (vectorizable_reduction): Properly guard the single_defuse_cycle
        path for non-SLP reduction chains where we cannot use it.
        Rework reduc_def/index and vector type deduction.  Rework
        vector operand gathering during reduction op code-gen.
        * tree-vect-slp.c (vect_analyze_slp): For failed SLP reduction
        chains dissolve the chain and leave it to non-SLP reduction
        handling.

2017-07-03  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-data-ref.h (dr_alignment): Declare.
        * tree-data-ref.c (dr_alignment): New function.
        * tree-vectorizer.h (dataref_aux): Remove base_element_aligned.
        * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Don't
        set it.
        * tree-vect-stmts.c (vectorizable_store): Use dr_alignment.

2017-07-03  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-data-ref.h (innermost_loop_behavior): Add base_alignment
        and base_misalignment fields.
        (DR_BASE_ALIGNMENT, DR_BASE_MISALIGNMENT): New macros.
        * tree-data-ref.c: Include builtins.h.
        (dr_analyze_innermost): Set up the new innmost_loop_behavior fields.
        * tree-vectorizer.h (STMT_VINFO_DR_BASE_ALIGNMENT): New macro.
        (STMT_VINFO_DR_BASE_MISALIGNMENT): Likewise.
        * tree-vect-data-refs.c: Include tree-cfg.h.
        (vect_compute_data_ref_alignment): Use the new innermost_loop_behavior
        fields instead of calculating an alignment here.
        (vect_analyze_data_refs): Use dr_analyze_innermost.  Dump the new
        innermost_loop_behavior fields.

2017-07-03  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-data-ref.h (innermost_loop_behavior): Add a step_alignment
        field.
        (DR_STEP_ALIGNMENT): New macro.
        * tree-vectorizer.h (STMT_VINFO_DR_STEP_ALIGNMENT): Likewise.
        * tree-data-ref.c (dr_analyze_innermost): Initalize step_alignment.
        (create_data_ref): Print it.
        * tree-vect-stmts.c (vectorizable_load): Use the step alignment
        to tell whether the step preserves vector (mis)alignment.
        * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Likewise.
        Move the check for an integer step and generalise to all INTEGER_CST.
        (vect_analyze_data_refs): Set DR_STEP_ALIGNMENT when setting DR_STEP.
        Print the outer step alignment.

2017-07-03  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-data-ref.h (innermost_loop_behavior): Replace aligned_to
        with offset_alignment.
        (DR_ALIGNED_TO): Delete.
        (DR_OFFSET_ALIGNMENT): New macro.
        * tree-vectorizer.h (STMT_VINFO_DR_ALIGNED_TO): Delete.
        (STMT_VINFO_DR_OFFSET_ALIGNMENT): New macro.
        * tree-data-ref.c (dr_analyze_innermost): Update after above changes.
        (create_data_ref): Likewise.
        * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Likewise.
        (vect_analyze_data_refs): Likewise.
        * tree-if-conv.c (if_convertible_loop_p_1): Use memset before
        creating dummy innermost behavior.

2017-07-03  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-data-ref.h (dr_analyze_innermost): Replace the dr argument
        with a "innermost_loop_behavior *" and refeence tree.
        * tree-data-ref.c (dr_analyze_innermost): Likewise.
        (create_data_ref): Update call accordingly.
        * tree-predcom.c (find_looparound_phi): Likewise.

2017-07-03  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-vectorizer.h (_stmt_vec_info): Replace individual dr_*
        fields with dr_wrt_vec_loop.
        (STMT_VINFO_DR_BASE_ADDRESS, STMT_VINFO_DR_INIT, STMT_VINFO_DR_OFFSET)
        (STMT_VINFO_DR_STEP, STMT_VINFO_DR_ALIGNED_TO): Update accordingly.
        (STMT_VINFO_DR_WRT_VEC_LOOP): New macro.
        (vect_dr_behavior): New function.
        (vect_create_addr_base_for_vector_ref): Remove loop parameter.
        * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Use
        vect_dr_behavior.  Use a step_preserves_misalignment_p boolean to
        track whether the step preserves the misalignment.
        (vect_create_addr_base_for_vector_ref): Remove loop parameter.
        Use vect_dr_behavior.
        (vect_setup_realignment): Update call accordingly.
        (vect_create_data_ref_ptr): Likewise.  Use vect_dr_behavior.
        * tree-vect-loop-manip.c (vect_gen_prolog_loop_niters): Update
        call to vect_create_addr_base_for_vector_ref.
        (vect_create_cond_for_align_checks): Likewise.
        * tree-vect-patterns.c (vect_recog_bool_pattern): Copy
        STMT_VINFO_DR_WRT_VEC_LOOP as a block.
        (vect_recog_mask_conversion_pattern): Likewise.
        * tree-vect-stmts.c (compare_step_with_zero): Use vect_dr_behavior.
        (new_stmt_vec_info): Remove redundant zeroing.

2017-07-03  Richard Earnshaw  <rearnsha@arm.com>

        * common/config/arm/arm-common.c (arm_be8_option): New function.
        * config/arm/arm-isa.h (isa_feature): Add new feature bit isa_bit_be8.
        (ISA_ARMv6): Add isa_bit_be8.
        * config/arm/arm.h (arm_be8_option): Add prototype.
        (BE8_SPEC_FUNCTION): New define.
        (EXTRA_SPEC_FUNCTIONS): Add BE8_SPEC_FUNCTION.
        * config/arm/arm.opt (mbig-endian): Mark as Negative of mlittle-endian.
        (mlittle-endian): Similarly.
        (mbe8, mbe32): New options.
        * config/arm/bpabi.h (BE8_LINK_SPEC): Call arm_be8_option.
        * doc/invoke.texi (ARM Options): Document -mbe8 and -mbe32.

2017-07-02  Jan Hubicka  <hubicka@ucw.cz>

        * tree-cfg.c (gimple_find_sub_bbs): Fix profile updating.

2017-07-02  Jan Hubicka  <hubicka@ucw.cz>

        * tree-cfgcleanup.c (want_merge_blocks_p): New function.
        (cleanup_tree_cfg_bb): Use it.
        * profile-count.h (profile_count::of_for_merging, profile_count::merge):
        New functions.
        * tree-cfg.c (gimple_merge_blocks): Use profile_count::merge.

2017-07-02  Jan Hubicka  <hubicka@ucw.cz>

        PR bootstrap/81285
        * loop-doloop.c (add_test): Update profile.

2017-07-03  Martin Liska  <mliska@suse.cz>

        PR sanitize/81040
        * sanopt.c (rewrite_usage_of_param): New function.
        (sanitize_rewrite_addressable_params): Likewise.
        (pass_sanopt::execute): Call rewrite_usage_of_param.

2017-07-03  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_create_epilog_for_reduction): Revert
        back to using VIEW_CONVERT_EXPR.

2017-07-03  Martin Liska  <mliska@suse.cz>

        PR other/78366
        * doc/extend.texi: Document when a resolver function is
        generated for target_clones.

2017-07-03  Martin Liska  <mliska@suse.cz>

        * asan.c (asan_emit_stack_protection): Unpoison just red zones
        and shadow memory of auto variables which are subject of
        use-after-scope sanitization.
        (asan_expand_mark_ifn): Add do set only when is_poison.

2016-07-03  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_analyze_loop_operations): Also analyze
        reduction PHIs.
        (vect_force_simple_reduction): Record reduction def -> phi mapping.
        (vectorizable_reduction): Perform reduction PHI creation when
        visiting a reduction PHI and adjust and simplify code generation
        phase of the reduction op.  Cache dts, use fold_binary, not fold_build2.
        (vect_transform_loop): Visit reduction PHIs.
        * tree-vect-slp.c (vect_get_and_check_slp_defs): Record reduction
        defs into the SLP tree.
        (vect_build_slp_tree): Reduction defs terminate the recursion.
        * tree-vect-stmts.c (vect_get_vec_def_for_operand_1): Allow lookup
        of reduction defs.
        (vect_get_vec_defs_for_stmt_copy): Export.
        (vect_get_vec_defs): Likewise.
        * tree-vectorizer.h (struct _stmt_vec_info): Amend reduc_def
        purpose.
        (vect_get_vec_defs_for_stmt_copy): Declare.
        (vect_get_vec_defs): Likewise.

2017-07-03  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-data-ref.c (dr_analyze_innermost): Replace the "nest"
        parameter with a "loop" parameter and use it instead of the
        loop containing DR_STMT.  Don't check simple_iv when doing
        BB analysis.  Describe the two analysis modes in the comment.

2017-07-03  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/69468
        * tree-ssa-tail-merge.c (ignore_edge_flags): New constant.
        (find_same_succ_bb): Handle ignore_edge_flags.

2017-07-03  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/81192
        * tree-ssa-tail-merge.c (same_succ_hash): Use bb->loop_father->num in
        hash.
        (same_succ::equal): Don't find bbs to be equal if bb->loop_father
        differs.
        (find_same_succ_bb): Remove obsolete test on bb->loop_father->latch.

2017-07-03  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/81192
        * tree-ssa-tail-merge.c (same_succ_flush_bb): Handle
        BB_SAME_SUCC (bb) == NULL.

2017-07-02  Jan Hubicka  <hubicka@ucw.cz>

        * cfgrtl.c (rtl_verify_edges): Enable checking of profile_probability
        consistency.

2017-07-02  Jan Hubicka  <hubicka@ucw.cz>

        * dumpfile.c: Include profile-count.h
        * tree-cfg.c (gimple_duplicate_sese_tail): Drop UNUSED attributes;
        update profile.
        (insert_cond_bb): Update profile.
        * tree-cfg.h (insert_cond_bb): Update prototype.
        * tree-chkp-opt.c (chkp_optimize_string_function_calls): Update.
        * tree-dump.c: Do not include tree-cfg.

2017-07-02  Jan Hubicka  <hubicka@ucw.cz>

        * bb-reorder.c (fix_up_crossing_landing_pad): Update profile.

2017-07-02  Jan Hubicka  <hubicka@ucw.cz>

        * expect.c (dw2_build_landing_pads): Update profile of the landing pad
        bb.

2017-07-02  Jan Hubicka  <hubicka@ucw.cz>

        * tree-complex.c (expand_complex_div_wide): update profile.

2017-07-02  Richard Sandiford  <richard.sandiford@linaro.org>
            Alan Hayward  <alan.hayward@arm.com>
            David Sherwood  <david.sherwood@arm.com>

        * Makefile.in (MACHMODE_H): Remove insn-modes.h
        (CORETYPES_H): New define.
        (MOSTLYCLEANFILES): Add insn-modes-inline.h.
        (insn-modes-inline.h, s-modes-inline-h): New rules.
        (generated_files): Add insn-modes-inline.h.
        (RTL_BASE_H, TREE_CORE_H): Use CORETYPES_H instead of coretypes.h.
        (build/gensupport.o, build/ggc-none.o, build/print-rtl.o): Likewise.
        (build/read-md.o, build/read-rtl.o, build/rtl.o): Likewise.
        (build/vec.o, build/hash-table.o, build/inchash.o): Likewise.
        (build/gencondmd.o, build/genattr.o, build/genattr-common.o): Likewise.
        (build/genattrtab.o, build/genautomata.o, build/gencheck.o): Likewise.
        (build/gencodes.o, build/genconditions.o): Likewise.
        (build/genconfig.o, build/genconstants.o, build/genemit.o): Likewise.
        (build/genenums.o, build/genextract.o, build/genflags.o): Likewise.
        (build/gentarget-def.o, build/genmddeps.o, build/genopinit.o)
        (build/genoutput.o, build/genpeep.o, build/genpreds.o): Likewise.
        (build/genrecog.o, build/genmddump.o, build/genmatch.o): Likewise.
        (build/gencfn-macros.o, build/gcov-iov.o): Likewise.
        * coretypes.h: Include everything up to real.h for generators.
        Include insn-modes.h first.  Include wide-int-print.h after
        wide-int.h.  Include insn-modes-inline.h and then machmode.h.
        * machmode.h: Don't include insn-modes.h here.
        * function-tests.c: Remove includes of signop.h, machmode.h,
        double-int.h and wide-int.h.
        * rtl.h: Likewise.
        * gcc-rich-location.c: Remove includes of machmode.h, double-int.h
        and wide-int.h.
        * optc-save-gen.awk: Likewise.
        * gencheck.c (BITS_PER_UNIT): Delete dummy definition.
        * godump.c: Remove include of wide-int-print.h.
        * pretty-print.h: Likewise.
        * wide-int-print.cc: Likewise.
        * wide-int.cc: Likewise.
        * hash-map-tests.c: Remove include of signop.h.
        * hash-set-tests.c: Likewise.
        * rtl-tests.c: Likewise.
        * mkconfig.sh: Remove include of machmode.h.
        * genmodes.c (emit_insn_modes_h): Split emission of inline functions
        into...
        (emit_insn_modes_inline_h): ...this new function.  Emit the code
        into an insn-modes-inline.h header file, adding appropriate
        include guards and end comments.
        (emit_insn_modes_c_header): Remove include of machmode.h.
        (emit_min_insn_modes_c_header): Include coretypes.h rather than
        machmode.h.
        (main): Handle -i flag and call emit_insn_modes_inline_h when
        it is passed.

2017-07-02  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-ssa-strlen.c (strinfo): Rename the length field to
        nonzero_chars.  Add a full_string_p field.
        (compare_nonzero_chars, zero_length_string_p): New functions.
        (get_addr_stridx): Add an offset_out parameter.
        Use compare_nonzero_chars.
        (get_stridx): Update accordingly.  Use compare_nonzero_chars.
        (new_strinfo): Update after above changes to strinfo.
        (set_endptr_and_length): Set full_string_p.
        (get_string_length): Update after above changes to strinfo.
        (unshare_strinfo): Update call to new_strinfo.
        (maybe_invalidate): Likewise.
        (get_stridx_plus_constant): Change off to unsigned HOST_WIDE_INT.
        Use compare_nonzero_chars and zero_string_p.  Treat nonzero_chars
        as a uhwi instead of an shwi.  Update after above changes to
        strinfo and new_strinfo.
        (zero_length_string): Assert that chainsi contains full strings.
        Use zero_length_string_p.  Update call to new_strinfo.
        (adjust_related_strinfos): Update after above changes to strinfo.
        Copy full_string_p from origsi.
        (adjust_last_stmt): Use zero_length_string_p.
        (handle_builtin_strlen): Update after above changes to strinfo and
        new_strinfo.  Install the lhs as the string length if the previous
        entry didn't describe a full string.
        (handle_builtin_strchr): Update after above changes to strinfo
        and new_strinfo.
        (handle_builtin_strcpy): Likewise.
        (handle_builtin_strcat): Likewise.
        (handle_builtin_malloc): Likewise.
        (handle_pointer_plus): Likewise.
        (handle_builtin_memcpy): Likewise.  Track nonzero characters
        that aren't necessarily followed by a nul terminator.
        (handle_char_store): Likewise.

2017-07-02  Richard Sandiford  <richard.sandiford@linaro.org>

        PR tree-optimization/80769
        * tree-ssa-strlen.c (strinfo): Document that "stmt" is also used
        for malloc and calloc.  Document the new invariant that all related
        strinfos have delayed lengths or none do.
        (verify_related_strinfos): Move earlier in file.
        (set_endptr_and_length): New function, split out from...
        (get_string_length): ...here.  Also set the lengths of related
        strinfos.
        (zero_length_string): Assert that chainsi has known (rather than
        delayed) lengths.
        (adjust_related_strinfos): Likewise.

2017-07-02  Richard Sandiford  <richard.sandiford@linaro.org>

        PR tree-optimization/81136
        * tree-vect-data-refs.c (vect_update_misalignment_for_peel): Only
        assert that two references with the same misalignment have the same
        compile-time misalignment if those compile-time misalignments
        are known.

2017-07-01  Andi Kleen  <ak@linux.intel.com>

        * print-tree.c (print_node): Print all attributes.

2017-07-01  Jan Hubicka  <hubicka@ucw.cz>

        * cfg.c (scale_bbs_frequencies): New function.
        * cfg.h (scale_bbs_frequencies): Declare it.
        * cfgloopanal.c (single_likely_exit): Cleanup.
        * cfgloopmanip.c (scale_loop_frequencies): Take profile_probability
        as parameter.
        (scale_loop_profile): Likewise.
        (loop_version): Likewise.
        (create_empty_loop_on_edge): Update.
        * cfgloopmanip.h (scale_loop_frequencies, scale_loop_profile,
        scale_loop_frequencies, scale_loop_profile, loopify,
        loop_version): Update prototypes.
        * modulo-sched.c (sms_schedule): Update.
        * predict.c (unlikely_executed_edge_p): Also check probability.
        (probably_never_executed_edge_p): Fix typo.
        * tree-if-conv.c (version_loop_for_if_conversion): Update.
        * tree-parloops.c (gen_parallel_loop): Update.
        * tree-ssa-loop-ivcanon.c (try_peel_loop): Update.
        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Update.
        * tree-ssa-loop-split.c (split_loop): Update.
        * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Update.
        * tree-vect-loop-manip.c (vect_do_peeling): Update.
        (vect_loop_versioning): Update.
        * tree-vect-loop.c (scale_profile_for_vect_loop): Update.

2017-07-01  Jan Hubicka  <hubicka@ucw.cz>

        * trans-mem.c (split_bb_make_tm_edge): Update profile.

2017-07-01  Jan Hubicka  <hubicka@ucw.cz>

        * tree-if-conv.c (combine_blocks): Use make_single_succ_edge
        to keep profile consistent.

2017-07-01  Jan Hubicka  <hubicka@ucw.cz>

        * cfgrtl.c (rtl_flow_call_edges_add): Update profile.
        * tree-cfg.c (gimple_flow_call_edges_add): Likewise.
        * profile-count.h (max_safe_multiplier): Make unsigned.
        (profile_count::guessed_zero): New.

2017-07-01  Jan Hubicka  <hubicka@ucw.cz>

        * bb-reorder.c (fix_up_crossing_landing_pad,
        fix_crossing_conditional_branches): Use make_single_succ_edge
        to keep profile consistent.

2017-07-01  Jan Hubicka  <hubicka@ucw.cz>

        * tree-vect-loop.c (optimize_mask_stores): Use make_single_succ_edge
        to update profile.

2017-07-01  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/81262
        * bb-reorder.c (fix_up_fall_thru_edges): Move variable declarations to
        the right scopes, make sure cond_jump isn't preserved between multiple
        iterations.  Search for fallthru edge whenever there are 3+ edges and
        use find_fallthru_edge for it.

2017-06-29  Jan Hubicka  <hubicka@ucw.cz>

        Patch by Alexander Monakov <amonakov@ispras.ru>
        * sel-sched-ir.c (compute_succs_info): Handle uninitialized
        probabilities consistently.

2017-06-29  Jan Hubicka  <hubicka@ucw.cz>

        * pa.c (pa_expand_compare_and_swap_loop): Update call of
        emit_cmp_and_jump_insns.

2017-06-29  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/81261
        * tree-inline.c (expand_call_inline): Combine profile statuses.

2017-06-30  Andrew Pinski  <apinski@cavium.com>

        * tree-if-conv.c (predicate_scalar_phi): Update new_stmt if
        fold_stmt returned true.

2017-06-30  Nathan Sidwell  <nathan@acm.org>

        * ggc.h (empty_string): Delete.
        * cfgexpand.c (expand_asm_stmt): Use plain "".
        * optabs.c (expand_asm_memory_barrier): Likewise.
        * stringpool.c (empty_string): Delete.
        (digit_vector, digit_string): Delete.
        (ggc_alloc_string): Use plain "", don't optimize single digit
        strings.  Use ggc_alloc_atomic.

2017-06-30  Richard Earnshaw  <rearnsha@arm.com>

        * rtlanal.c (insn_rtx_cost): If a parallel contains exactly one
        comparison set and one other set, use the cost of the non-comparison
        set.

2017-06-30  Nathan Sidwell  <nathan@acm.org>

        * ggc.h: Replace all 'static inline' with plain 'inline'.  Fix
        some formatting.

2017-06-30  Peter Bergner  <bergner@vnet.ibm.com>

        * tree-cfg.c (group_case_labels_stmt): Merge scanning and compressing
        loops.  Remove now unneeded calls to gimple_switch_set_label() that
        just set removed labels to NULL_TREE.

2017-06-30  Aldy Hernandez  <aldyh@redhat.com>

        * tree-ssanames.c (set_range_info_raw): Abstract from ...
        (set_range_info): ...here.  Only call set_range_info_raw if domain
        is useful.
        (set_nonzero_bits): Call set_range_info_raw.
        * tree-ssanames.h (set_range_info_raw): New.

2017-06-30  Jakub Jelinek  <jakub@redhat.com>

        PR target/81225
        * config/i386/sse.md (vec_extract_lo_<mode><mask_name>): For V8FI,
        V16FI and VI8F_256 iterators, use <store_mask_predicate> instead
        of nonimmediate_operand and <store_mask_constraint> instead of m
        for the input operand.  For V8FI iterator, always split if input
        is a MEM.  For V16FI and V8SF_256 iterators, don't test if both
        operands are MEM if <mask_applied>.  For VI4F_256 iterator, use
        <store_mask_predicate> instead of register_operand and
        <store_mask_constraint> instead of v for the input operand.  Make
        sure both operands aren't MEMs for if not <mask_applied>.

2017-06-30  Sylvestre Ledru  <sylvestre@debian.org>

        * lto-wrapper.c (copy_file) Close both file descriptors before
        exiting normally.

2017-06-30  Martin Liska  <mliska@suse.cz>

        PR ipa/81214
        * multiple_target.c (create_dispatcher_calls): Make ifunc
        also for function that don't have calls or are not referenced.

2017-06-30  Richard Biener  <rguenther@suse.de>

        * tree-vect-slp.c (vect_slp_analyze_node_operations): Only
        analyze the first scalar stmt.  Move vector type computation
        for the BB case here from ...
        * tree-vect-stmts.c (vect_analyze_stmt): ... here.  Guard
        live operation processing in the SLP case properly.

2017-06-30  Richard Biener  <rguenther@suse.de>

        * graph.c (draw_cfg_node_succ_edges): Fix broken dot syntax.

2017-06-30  Martin Liska  <mliska@suse.cz>

        PR sanitizer/81021
        * tree-eh.c (lower_resx): Call BUILT_IN_ASAN_HANDLE_NO_RETURN
        before BUILT_IN_UNWIND_RESUME when ASAN is used.

2017-06-30  Yvan Roux  <yvan.roux@linaro.org>

        * doc/invoke.texi (AArch64): Add missing options and remove redundant
        ones.

2017-06-30  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81249
        * tree-vect-loop.c (vect_create_epilog_for_reduction): Convert
        condition reduction result to original scalar type.

2017-06-30  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * profile-count.h (enum profile_quality): Fix typos and whitespace
        issues.

2017-06-30  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_expand_setmem): Adjust to the new data
        type for branch probabilities.

2017-06-29  Julian Brown  <julian@codesourcery.com>
            Naveen H.S  <Naveen.Hurugalawadi@cavium.com>

        * config/aarch64/aarch64-fusion-pairs.def: Add ALU_BRANCH entry.
        * config/aarch64/aarch64.c (AARCH64_FUSE_ALU_BRANCH): New fusion type.
        (thunderx2t99_tunings): Set AARCH64_FUSE_ALU_BRANCH flag.
        (aarch_macro_fusion_pair_p): Add support for AARCH64_FUSE_ALU_BRANCH.

2017-06-29  Naveen H.S  <Naveen.Hurugalawadi@cavium.com>

        * config/aarch64/aarch64.c (aarch_macro_fusion_pair_p): Push the
        check for CC usage into AARCH64_FUSE_CMP_BRANCH.
        * config/i386/i386.c (ix86_macro_fusion_pair_p): Push the check for
        CC usage from generic code to here.
        * sched-deps.c (sched_macro_fuse_insns): Move the condition for
        CC usage into the target macros.

2017-06-29  Maya Rashish  <coypu@sdf.org>

        * config/netbsd.h (NETBSD_LIB_SPEC): Add -lc when creating shared
        objects.

2017-06-29  Jan Hubicka  <hubicka@ucw.cz>

        * arm/arm-builtins.c: Include profile-count.h
        * except.c (sjlj_emit_function_enter): Use
        profile_probability::unlikely.

2017-06-29  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (toc_relative_expr_p): Make tocrel_base
        and tocrel_offset be pointer args rather than implicitly using
        static versions.
        (legitimate_constant_pool_address_p, rs6000_emit_move,
        const_load_sequence_p, adjust_vperm): Add local tocrel_base and
        tocrel_offset and use in toc_relative_expr_p call.
        (print_operand, print_operand_address): Use static tocrel_base_oac
        and tocrel_offset_oac.
        (rs6000_output_addr_const_extra): Use static tocrel_base_oac and
        tocrel_offset_oac.

2017-06-29  Maya Rashish  <coypu@sdf.org>

        * config/vax/builtins.md (ffssi2_internal): Correct constraint.

2017-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.c (expand_expr) <normal_inner_ref>: When testing for unaligned
        objects, take into account only the alignment of 'op0' and 'mode1' if
        'op0' is a MEM.

2017-06-29  Steve Ellcey  <sellcey@cavium.com>

        * ccmp.c (ccmp_tree_comparison_p): New function.
        (ccmp_candidate_p): Update to use above function.
        (get_compare_parts): New function.
        (expand_ccmp_next): Update to use new functions.
        (expand_ccmp_expr_1): Take tree arg instead of gimple, update to use
        new functions.
        (expand_ccmp_expr): Pass tree instead of gimple to expand_ccmp_expr_1,
        take mode as argument.
        * ccmp.h (expand_ccmp_expr): Add mode as argument.
        * expr.c (expand_expr_real_1): Pass mode as argument.

2017-06-29  Segher Boessenkool  <segher@kernel.crashing.org>

        * combine.c (combine_instructions): Print insns to dump_file, together
        with their costs.

2017-06-29  Jan Hubicka  <hubicka@ucw.cz>

        * asan.c (asan_emit_stack_protection): Update.
        (create_cond_insert_point): Update.
        * auto-profile.c (afdo_propagate_circuit): Update.
        * basic-block.h (struct edge_def): Turn probability to
        profile_probability.
        (EDGE_FREQUENCY): Update.
        * bb-reorder.c (find_traces_1_round): Update.
        (better_edge_p): Update.
        (sanitize_hot_paths): Update.
        * cfg.c (unchecked_make_edge): Initialize probability to uninitialized.
        (make_single_succ_edge): Update.
        (check_bb_profile): Update.
        (dump_edge_info): Update.
        (update_bb_profile_for_threading): Update.
        * cfganal.c (connect_infinite_loops_to_exit): Initialize new edge
        probabilitycount to 0.
        * cfgbuild.c (compute_outgoing_frequencies): Update.
        * cfgcleanup.c (try_forward_edges): Update.
        (outgoing_edges_match): Update.
        (try_crossjump_to_edge): Update.
        * cfgexpand.c (expand_gimple_cond): Update make_single_succ_edge.
        (expand_gimple_tailcall): Update.
        (construct_init_block): Use make_single_succ_edge.
        (construct_exit_block): Use make_single_succ_edge.
        * cfghooks.c (verify_flow_info): Update.
        (redirect_edge_succ_nodup): Update.
        (split_edge): Update.
        (account_profile_record): Update.
        * cfgloopanal.c (single_likely_exit): Update.
        * cfgloopmanip.c (scale_loop_profile): Update.
        (set_zero_probability): Remove.
        (duplicate_loop_to_header_edge): Update.
        * cfgloopmanip.h (loop_version): Update prototype.
        * cfgrtl.c (try_redirect_by_replacing_jump): Update.
        (force_nonfallthru_and_redirect): Update.
        (update_br_prob_note): Update.
        (rtl_verify_edges): Update.
        (purge_dead_edges): Update.
        (rtl_lv_add_condition_to_bb): Update.
        * cgraph.c: (cgraph_edge::redirect_call_stmt_to_calle): Update.
        * cgraphunit.c (init_lowered_empty_function): Update.
        (cgraph_node::expand_thunk): Update.
        * cilk-common.c: Include profile-count.h
        * dojump.c (inv): Remove.
        (jumpifnot): Update.
        (jumpifnot_1): Update.
        (do_jump_1): Update.
        (do_jump): Update.
        (do_jump_by_parts_greater_rtx): Update.
        (do_compare_rtx_and_jump): Update.
        * dojump.h (jumpifnot, jumpifnot_1, jumpif_1, jumpif, do_jump,
        do_jump_1. do_compare_rtx_and_jump): Update prototype.
        * dwarf2cfi.c: Include profile-count.h
        * except.c (dw2_build_landing_pads): Use make_single_succ_edge.
        (sjlj_emit_dispatch_table): Likewise.
        * explow.c: Include profile-count.h
        * expmed.c (emit_store_flag_force): Update.
        (do_cmp_and_jump): Update.
        * expr.c (compare_by_pieces_d::generate): Update.
        (compare_by_pieces_d::finish_mode): Update.
        (emit_block_move_via_loop): Update.
        (store_expr_with_bounds): Update.
        (store_constructor): Update.
        (expand_expr_real_2): Update.
        (expand_expr_real_1): Update.
        * expr.h (try_casesi, try_tablejump): Update prototypes.
        * gimple-pretty-print.c (dump_probability): Update.
        (dump_profile): New.
        (dump_gimple_label): Update.
        (dump_gimple_bb_header): Update.
        * graph.c (draw_cfg_node_succ_edges): Update.
        * hsa-gen.c (convert_switch_statements): Update.
        * ifcvt.c (cheap_bb_rtx_cost_p): Update.
        (find_if_case_1): Update.
        (find_if_case_2): Update.
        * internal-fn.c (expand_arith_overflow_result_store): Update.
        (expand_addsub_overflow): Update.
        (expand_neg_overflow): Update.
        (expand_mul_overflow): Update.
        (expand_vector_ubsan_overflow): Update.
        * ipa-cp.c (good_cloning_opportunity_p): Update.
        * ipa-split.c (split_function): Use make_single_succ_edge.
        * ipa-utils.c (ipa_merge_profiles): Update.
        * loop-doloop.c (add_test): Update.
        (doloop_modify): Update.
        * loop-unroll.c (compare_and_jump_seq): Update.
        (unroll_loop_runtime_iterations): Update.
        * lra-constraints.c (lra_inheritance): Update.
        * lto-streamer-in.c (input_cfg): Update.
        * lto-streamer-out.c (output_cfg): Update.
        * mcf.c (adjust_cfg_counts): Update.
        * modulo-sched.c (sms_schedule): Update.
        * omp-expand.c (expand_omp_for_init_counts): Update.
        (extract_omp_for_update_vars): Update.
        (expand_omp_ordered_sink): Update.
        (expand_omp_for_ordered_loops): Update.
        (expand_omp_for_generic): Update.
        (expand_omp_for_static_nochunk): Update.
        (expand_omp_for_static_chunk): Update.
        (expand_cilk_for): Update.
        (expand_omp_simd): Update.
        (expand_omp_taskloop_for_outer): Update.
        (expand_omp_taskloop_for_inner): Update.
        * omp-simd-clone.c (simd_clone_adjust): Update.
        * optabs.c (expand_doubleword_shift): Update.
        (expand_abs): Update.
        (emit_cmp_and_jump_insn_1): Update.
        (expand_compare_and_swap_loop): Update.
        * optabs.h (emit_cmp_and_jump_insns): Update prototype.
        * predict.c (predictable_edge_p): Update.
        (edge_probability_reliable_p): Update.
        (set_even_probabilities): Update.
        (combine_predictions_for_insn): Update.
        (combine_predictions_for_bb): Update.
        (propagate_freq): Update.
        (estimate_bb_frequencies): Update.
        (force_edge_cold): Update.
        * profile-count.c (profile_count::dump): Add missing space into dump.
        (profile_count::debug): Add newline.
        (profile_count::differs_from_p): Explicitly convert to unsigned.
        (profile_count::stream_in): Update.
        (profile_probability::dump): New member function.
        (profile_probability::debug): New member function.
        (profile_probability::differs_from_p): New member function.
        (profile_probability::differs_lot_from_p): New member function.
        (profile_probability::stream_in): New member function.
        (profile_probability::stream_out): New member function.
        * profile-count.h (profile_count_quality): Rename to ...
        (profile_quality): ... this one.
        (profile_probability): New.
        (profile_count): Update.
        * profile.c (compute_branch_probabilities): Update.
        * recog.c (peep2_attempt): Update.
        * sched-ebb.c (schedule_ebbs): Update.
        * sched-rgn.c (find_single_block_region): Update.
        (compute_dom_prob_ps): Update.
        (schedule_region): Update.
        * sel-sched-ir.c (compute_succs_info): Update.
        * stmt.c (struct case_node): Update.
        (do_jump_if_equal): Update.
        (get_outgoing_edge_probs): Update.
        (conditional_probability): Update.
        (emit_case_dispatch_table): Update.
        (expand_case): Update.
        (expand_sjlj_dispatch_table): Update.
        (emit_case_nodes): Update.
        * targhooks.c: Update.
        * tracer.c (better_p): Update.
        (find_best_successor): Update.
        * trans-mem.c (expand_transaction): Update.
        * tree-call-cdce.c: Update.
        * tree-cfg.c (gimple_split_edge): Upate.
        (move_sese_region_to_fn): Upate.
        * tree-cfgcleanup.c (cleanup_control_expr_graph): Upate.
        * tree-eh.c (lower_resx): Upate.
        (cleanup_empty_eh_move_lp): Upate.
        * tree-if-conv.c (version_loop_for_if_conversion): Update.
        * tree-inline.c (copy_edges_for_bb): Update.
        (copy_cfg_body): Update.
        * tree-parloops.c (gen_parallel_loop): Update.
        * tree-profile.c (gimple_gen_ic_func_profiler): Update.
        (gimple_gen_time_profiler): Update.
        * tree-ssa-dce.c (remove_dead_stmt): Update.
        * tree-ssa-ifcombine.c (update_profile_after_ifcombine): Update.
        * tree-ssa-loop-im.c (execute_sm_if_changed): Update.
        * tree-ssa-loop-ivcanon.c (remove_exits_and_undefined_stmts): Update.
        (unloop_loops): Update.
        (try_peel_loop): Update.
        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Update.
        * tree-ssa-loop-split.c (connect_loops): Update.
        (split_loop): Update.
        * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Update.
        (hoist_guard): Update.
        * tree-ssa-phionlycprop.c (propagate_rhs_into_lhs): Update.
        * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Update.
        (value_replacement): Update.
        * tree-ssa-reassoc.c (branch_fixup): Update.
        * tree-ssa-tail-merge.c (replace_block_by): Update.
        * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Update.
        (create_edge_and_update_destination_phis): Update.
        (compute_path_counts): Update.
        (recompute_probabilities): Update.
        (update_joiner_offpath_counts): Update.
        (freqs_to_counts_path): Update.
        (duplicate_thread_path): Update.
        * tree-switch-conversion.c (hoist_edge_and_branch_if_true): Update.
        (struct switch_conv_info): Update.
        (gen_inbound_check): Update.
        * tree-vect-loop-manip.c (slpeel_add_loop_guard): Update.
        (vect_do_peeling): Update.
        (vect_loop_versioning): Update.
        * tree-vect-loop.c (scale_profile_for_vect_loop): Update.
        (optimize_mask_stores): Update.
        * ubsan.c (ubsan_expand_null_ifn): Update.
        * value-prof.c (gimple_divmod_fixed_value): Update.
        (gimple_divmod_fixed_value_transform): Update.
        (gimple_mod_pow2): Update.
        (gimple_mod_pow2_value_transform): Update.
        (gimple_mod_subtract): Update.
        (gimple_mod_subtract_transform): Update.
        (gimple_ic): Update.
        (gimple_stringop_fixed_value): Update.
        (gimple_stringops_transform): Update.
        * value-prof.h: Update.

2017-06-29  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c.c: Add support for built-in functions
        vector signed int vec_signed (vector float);
        vector signed long long vec_signed (vector double);
        vector signed int vec_signed2 (vector double, vector double);
        vector signed int vec_signede (vector double);
        vector signed int vec_signedo (vector double);
        * config/rs6000/rs6000.c (rs6000_generate_vsigned2_code): Add
        instruction generator.
        * config/rs6000/vsx.md (UNSPEC_VSX_XVCVSPSXWS, UNSPEC_VSX_XVCVSPSXDS,
        UNSPEC_VSX_VSIGNED2): Add UNSPECS.
        (vsx_xvcvspsxws, vsx_xvcvdpuxds_scale, vsx_xvcvspuxws, vsigned2_v2df):
        Add define_insn.
        (vsignedo_v2df, vsignede_v2df, vunsigned2_v2df, vunsignedo_v2df,
        vunsignede_v2df): Add define_expands.
        * config/rs6000/rs6000-builtin.def (VEC_SIGNED, VEC_UNSIGNED,
        VEC_SIGNED2, VEC_UNSIGNED2, VEC_SIGNEDE, VEC_UNSIGNEDE, VEC_SIGNEDO,
        VEC_UNSIGNEDO): Add definitions.
        * config/vsx.md (UNSPEC_VSX_XVCVSPSXWS, UNSPEC_VSX_XVCVSPSXDS,
        UNSPEC_VSX_VSIGNED2): Add UNSPECs.
        (vsx_xvcvspsxws, vsx_xvcvspuxws): Add define_insn.
        (vsigned2_v2df, vsigendo_v2df, vsignede_v2df,
        vunsigned2_v2df, vunsignedo_v2df, vunsignede_v2df): Add define_expands.
        * config/rs6000/altivec.h (vec_signed, vec_signed2,
        vec_signede and vec_signedo, vec_unsigned, vec_unsigned2,
        vec_unsignede, vec_unsignedo): Add builtin defines.
        * config/rs6000-protos.h (rs6000_generate_vsigned2_code): Add extern
        declaration.
        * doc/extend.texi: Update the built-in documentation file for the
        new built-in functions.

2017-06-29  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_analyze_scalar_cycles_1): Do not add
        reduction chains to LOOP_VINFO_REDUCTIONS.
        * tree-vect-slp.c (vect_analyze_slp): Continue looking for
        SLP reductions after processing reduction chains.

2017-06-29  Nathan Sidwell  <nathan@acm.org>

        * builtins.c (fold_builtin_FUNCTION): Use
        lang_hooks.decl_printable_name.

2017-06-29  Peter Bergner  <bergner@vnet.ibm.com>

        PR middle-end/81194
        * cfgexpand.c (expand_gimple_stmt_1): Handle switch statements
        with only one label.
        * stmt.c (expand_case): Assert NCASES is greater than one.

2017-06-29  Richard Biener  <rguenther@suse.de>

        * tree-cfg.c (group_case_labels_stmt): Return whether we changed
        anything.
        (group_case_labels): Likewise.
        (find_taken_edge): Push sanity checking on val to workers...
        (find_taken_edge_cond_expr): ... here
        (find_taken_edge_switch_expr): ... and here, handle cases
        with just a default label.
        * tree-cfg.h (group_case_labels_stmt): Adjust prototype.
        (group_case_labels): Likewise.
        * tree-cfgcleanup.c (execute_cleanup_cfg_post_optimizing): When
        group_case_labels does anything cleanup the CFG again.

2017-06-29  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/81196
        * tree-ssa-loop-niter.c (number_of_iterations_cond): Handle loop
        exit condition comparing two IVs.

2017-06-29  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/parsecpu.awk (gen_comm_data): Add initializer for
        profile to the dummy entry at the end of the list of architectures.
        * config/arm/arm-cpu-cdata.h: Regenerated.

2017-06-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
            Michael Collison <michael.collison@arm.com>

        PR target/70119
        * config/aarch64/aarch64.md (*aarch64_<optab>_reg_<mode>3_mask1):
        New pattern.
        (*aarch64_reg_<mode>3_neg_mask2): New pattern.
        (*aarch64_reg_<mode>3_minus_mask): New pattern.
        (*aarch64_<optab>_reg_di3_mask2): New pattern.
        * config/aarch64/aarch64.c (aarch64_rtx_costs): Account for cost
        of shift when the shift amount is masked with constant equal to
        the size of the mode.
        * config/aarch64/predicates.md (subreg_lowpart_operator): New
        predicate.

2017-06-29  Martin Liska  <mliska@suse.cz>

        * config/i386/i386.opt: Change range from [1,5] to [0,5].

2017-06-29  Yury Gribov  <tetra2005@gmail.com>

        PR bootstrap/80565
        * ipa-cp.c (allocate_and_init_ipcp_value): Add initialization
        code.
        * ipa-inline.h
        (edge_growth_cache_entry::edge_growth_cache_entry): New
        function.
        (reset_edge_growth_cache): Update to use constructor.

2017-06-28  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/aarch64/aarch64.h (AARCH64_EXPAND_ALIGNMENT): New.
        (DATA_ALIGNMENT): Update to use AARCH64_EXPAND_ALIGNMENT.
        (LOCAL_ALIGNMENT): Update to use AARCH64_EXPAND_ALIGNMENT.

2017-06-28  Sebastian Peryt  <sebastian.peryt@intel.com>

        * config/i386/avx512vlintrin.h (_mm256_permutexvar_epi64)
        (_mm256_permutexvar_epi32, _mm256_permutex_epi64): New intrinsics.

2017-06-28  Szabolcs Nagy  <szabolcs.nagy@arm.com>

        * config.gcc (*-linux-musl*): Add t-musl tmake_file.
        (*-linux-uclibc*): Add t-uclibc tmake_file.
        * config/t-musl: New.
        * config/t-uclibc: New.

2017-06-28  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/parsecpu.awk (profile): Parse new keyword in an arch
        context.
        (gen_comm_data): Emit architectural setting of arch_prof.
        * config/arm/arm-cpus.in (armv6-m, armv6s-m, armv7-a, armv7ve): Set the
        profile.
        (armv7-r, armv7-m, armv7e-m, armv8-a, armv8.1-a, armv8.2-a): Likewise.
        (armv8-m.base, armv8-m.main): Likewise.
        * arm-protos.h (arm_build_target): Add profile field.
        (arch_option): Likewise.
        * config/arm/arm.c (arm_configure_build_target): Copy the profile to
        the active target.
        * config/arm/arm.h (TARGET_ARM_ARCH_PROFILE): Use
        arm_active_target.profile.

2017-06-28  Richard Biener  <rguenther@suse.de>

        PR middle-end/81227
        * fold-const.c (negate_expr_p): Use TYPE_UNSIGNED, not
        TYPE_OVERFLOW_WRAPS.
        * match.pd (negate_expr_p): Likewise.
        * tree-ssa-reassoc.c (optimize_range_tests_diff): Use
        fold_build2, not fold_binary.

2017-06-28  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64 (aarch64_expand_mov_immediate):
        Convert memory address to Pmode.
        (aarch64_print_operand): Assert MEM operands are always Pmode.

2017-06-28  Wilco Dijkstra  <wdijkstr@arm.com>

        PR target/79665
        * config/arm/aarch-common.c (arm_no_early_alu_shift_dep):
        Remove redundant if.
        (aarch_forward_to_shift_is_not_shifted_reg): Remove.
        * config/arm/aarch-common-protos.h
        (aarch_forward_to_shift_is_not_shifted_re): Remove.
        * config/arm/cortex-a53.md: Use arm_no_early_alu_shift_dep in bypass.

2017-06-28  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR ipa/81238
        * multiple_target.c (create_dispatcher_calls): Set the default
        clone to be static, not public.

2017-06-28  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vectorizable_reduction): Move special
        cond reduction IV var creation ...
        (vect_create_epilog_for_reduction): ... here.  Remove induction_index
        parameter.  Use STMT_VINFO_VECTYPE.
        * tree-vect-slp.c (vect_get_constant_vectors): Properly reset
        constant_p.

2017-06-28  Martin Liska  <mliska@suse.cz>

        PR ipa/81128
        * ipa-visibility.c (non_local_p): Handle visibility.

2017-06-28  Martin Liska  <mliska@suse.cz>

        PR driver/79659
        * common.opt: Add IntegerRange to various options.
        * opt-functions.awk (integer_range_info): New function.
        * optc-gen.awk: Add integer_range_info to cl_options struct.
        * opts-common.c (decode_cmdline_option): Handle
        CL_ERR_INT_RANGE_ARG.
        (cmdline_handle_error): Likewise.
        * opts.c (print_filtered_help): Show valid interval in
        when --help is provided.
        * opts.h (struct cl_option): Add range_min and range_max fields.
        * config/i386/i386.opt: Add IntegerRange for -mbranch-cost.

2017-06-28  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd ((X & ~Y) | (~X & Y)): Generalize to + and ^.
        (x * C EQ/NE y * C): New transformation.

2017-06-28  Christophe Lyon  <christophe.lyon@linaro.org>

        * genmultilib (combination_space): Accept '+' in option names.

2017-06-28  Martin Liska  <mliska@suse.cz>

        PR sanitizer/81224
        * asan.c (instrument_derefs): Bail out inner references
        that are hard register variables.

2017-06-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/81175
        * config/i386/i386.c (ix86_init_mmx_sse_builtins): Use def_builtin
        rather than def_builtin_pure for __builtin_ia32_gatherpf*.

2017-06-28  Richard Biener  <rguenther@suse.de>

        * tree-vectorizer.h (vect_get_vec_defs): Remove.
        (vect_get_slp_defs): Adjust.
        * tree-vect-loop.c (get_initial_defs_for_reduction): Split
        out from ...
        * tree-vect-slp.c (vect_get_constant_vectors): ... here and
        simplify.
        * tree-vect-loop.c (vect_create_epilog_for_reduction): Use
        get_initial_defs_for_reduction instead of vect_get_vec_defs.
        (vectorizable_reduction): Adjust.
        * tree-vect-slp.c (vect_get_constant_vectors): Remove reduction
        handling.
        (vect_get_slp_defs): Likewise.
        * tree-vect-stmts.c (vect_get_vec_defs): Make static and adjust.
        (vectorizable_bswap): Adjust.
        (vectorizable_call): Likewise.
        (vectorizable_conversion): Likewise.
        (vectorizable_assignment): Likewise.
        (vectorizable_shift): Likewise.
        (vectorizable_operation): Likewise.
        (vectorizable_store): Likewise.
        (vectorizable_condition): Likewise.
        (vectorizable_comparison): Likewise.

2017-06-28  Michael Collison  <michael.collison@arm.com>

        PR target/68535
        * config/arm/arm.c (gen_ldm_seq): Remove last unnecessary
        set of base_reg
        (arm_gen_movmemqi): Removed unused variable 'i'.
        Convert 'for' loop into 'while' loop.
        (arm_expand_prologue): Remove last unnecessary set of insn.
        (thumb_pop): Remove unused variable 'pushed_words'.
        (thumb_exit): Remove last unnecessary set of regs_to_pop.

2017-06-28  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/predicates.md: Use s390_rel_address_ok_p.
        * config/s390/s390-protos.h: Add prototype of
        s390_rel_address_ok_p.
        * config/s390/s390.c (s390_got_symbol): New function.
        (s390_rel_address_ok_p): New function.
        (legitimize_pic_address): Use s390_rel_address_ok_p.
        (s390_load_got): Use s390_got_symbol.
        (s390_option_override): Issue error if
        -mno-pic-data-is-text-relative is used without -fpic/-fPIC.
        * config/s390/s390.h (TARGET_DEFAULT_PIC_DATA_IS_TEXT_RELATIVE):
        New macro.
        * config/s390/s390.opt: New option mpic-data-is-text-relative.

2017-06-27  Andrew Pinski  <apinski@cavium.com>

        * match.pd (X >/>=/</<= 0 ? 1.0 : -1.0): New patterns.
        (X * copysign (1.0, X)): New pattern.
        (X * copysign (1.0, -X)): New pattern.
        (copysign (-1.0, CST)): New pattern.

2017-06-27  Joseph Myers  <joseph@codesourcery.com>

        * genmultilib (combination_space): Remove variable.
        Validate reuse rules against regular expression for any sequence
        of multilib options in any order.

2017-06-27  Michael Collison  <michael.collison@arm.com>

        * config/aarch64/aarch64-simd.md (aarch64_combine<mode>): Directly
        call aarch64_split_simd_combine.
        * (aarch64_combine_internal<mode>): Delete pattern.
        * config/aarch64/aarch64.c (aarch64_split_simd_combine):
        Allow register and subreg operands.

2017-06-27  Jerome Lambourg  <lambourg@adacore.com>

        * config/i386/vxworks.h (ASM_SPEC): Remove definition. No target
        specific need, just fallback on defaults.
        (ASM_OUTPUT_ALIGNED_BSS): Add #undef before #define.

2017-06-27  Jerome Lambourg  <lambourg@adacore.com>
            Olivier Hainque  <hainque@adacore.com>

        * config/i386/vxworks.h (DBX_REGISTER_NUMBER): Pick distinct
        map for 64bits.
        (TARGET_OS_CPP_BUILTINS): builtin_define CPU to X86_64 for 64bit
        targets. Pick a default if no particular attempt applied.
        (STACK_CHECK_PROTECT): Double for 64bit targets, which have
        larger contexts.

2017-06-27  Jerome Lambourg  <lambourg@adacore.com>

        * config.gcc (i*86-wrs-vxworks7): Handle new acceptable triplet.
        (x86_64-wrs-vxworks7): Likewise.

2017-06-27  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/81223
        * ubsan.c (instrument_null): Check get_base_address's result for null.

2017-06-27  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd ((A+-B)+(C-A), (A+B)-(A-C)): New transformations.

2017-06-27  Marc Glisse  <marc.glisse@inria.fr>

        * builtin-types.def (BT_FENV_T_PTR, BT_CONST_FENV_T_PTR,
        BT_FEXCEPT_T_PTR, BT_CONST_FEXCEPT_T_PTR): New primitive types.
        (BT_FN_INT_FENV_T_PTR, BT_FN_INT_CONST_FENV_T_PTR,
        BT_FN_INT_FEXCEPT_T_PTR_INT, BT_FN_INT_CONST_FEXCEPT_T_PTR_INT):
        New function types.
        * builtins.def (BUILT_IN_FECLEAREXCEPT, BUILT_IN_FEGETENV,
        BUILT_IN_FEGETEXCEPTFLAG, BUILT_IN_FEGETROUND,
        BUILT_IN_FEHOLDEXCEPT, BUILT_IN_FERAISEEXCEPT,
        BUILT_IN_FESETENV, BUILT_IN_FESETEXCEPTFLAG,
        BUILT_IN_FESETROUND, BUILT_IN_FETESTEXCEPT,
        BUILT_IN_FEUPDATEENV): New builtins.
        * tree-core.h (TI_FENV_T_PTR_TYPE, TI_CONST_FENV_T_PTR_TYPE,
        TI_FEXCEPT_T_PTR_TYPE, TI_CONST_FEXCEPT_T_PTR_TYPE): New entries.
        * tree.h (fenv_t_ptr_type_node, const_fenv_t_ptr_type_node,
        fexcept_t_ptr_type_node, const_fexcept_t_ptr_type_node): New
        macros.
        (builtin_structptr_types): Adjust size.
        * tree.c (builtin_structptr_types): Add four entries.

2017-06-27  Jerome Lambourg  <lambourg@adacore.com>
            Olivier Hainque  <hainque@adacore.com>

        * config/vxworks.h (VXWORKS_LIB_SPEC): Incorporate ...
        (TLS_SYM): New local macro, forcing reference to __tls__ on
        link command lines for VxWorks 7 RTPs, triggering initialization
        of tlsLib.
        (VXWORKS_HAVE_TLS): New macro. State whether the target VxWorks
        OS features TLS support, true for RTPs on VxWorks 7.
        * config/vxworks.c (vxworks_override_options): Setup emutls
        accordingly.

2017-06-27  Jakub Jelinek  <jakub@redhat.com>

        * predict.c (test_prediction_value_range): Use -1U instead of -1
        to avoid narrowing conversion warning.
        * dumpfile.c (dump_options): Wrap all value into dump_flags_t cast
        to avoid narrowing conversion warning.
        * opt-functions.awk (var_ref): Return (unsigned short) -1 instead of
        -1.
        * optc-gen.awk (END): Expect (unsigned short) -1 instead of -1.

2017-06-27  Jerome Lambourg  <lambourg@adacore.com>

        * config/vxworks.h (VXWORKS_LIBS_RTP): Alternative definition for
        64bit configurations.
        (PTR_DIFF_TYPE): Alternative definition for TARGET_LP64.
        (SIZE_TYPE): Likewise.
        * config/vxworks.c (vxworks_emutls_var_fields): Use
        long_unsigned_type_node instead of unsigned_type_node as the offset
        field type, which is "pointer" mode in emutls.c.

2017-06-27  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/81209
        * ubsan.c (ubsan_encode_value): Initialize DECL_CONTEXT on var.

        PR middle-end/81207
        * gimple-fold.c (replace_call_with_call_and_fold): Handle
        gimple_vuse copying separately from gimple_vdef copying.

2017-06-27  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * value-prof.c (free_hist): Remove call to memset and the enclosing if
        condition.

2017-06-26  Jerome Lambourg  <lambourg@adacore.com>
            Olivier Hainque  <hainque@adacore.com>

        * config.gcc (*-*-vxworks*): Add TARGET_VXWORKS7=1 to tm_defines
        for all vxworks7 targets.
        * config/vxworks.h (TARGET_VXWORKS7): If not defined, define to 0.
        (VXWORKS_ADDITIONAL_CPP_SPEC): Alternative definition for VXWORKS7.
        (VXWORKS_LIBS_RTP, VXWORKS_LIBS_RTP_DIR): New macros, allowing
        variations for VX6/VX7 and 32/64bits later on in ...
        (VXWORKS_LIB_SPEC): Leverage new macros.
        (VXWORKS_OS_CPP_BUILTINS): Define _VSB_CONFIG_FILE for VXWORKS7,
        as well as _ALLOW_KEYWORD_MACROS when "inline" is not a keyword.

2017-06-26  Jerome Lambourg  <lambourg@adacore.com>

        * config/vxworks.h (VXWORKS_OS_CPP_BUILTINS): builtin_define
        _VX_TOOL_FAMILY and _VX_TOOL to gnu.

2017-06-26  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c.c: Add support for built-in functions
        vector bool char vec_reve (vector bool char);
        vector signed char vec_reve (vector signed char);
        vector unsigned char vec_reve (vector unsigned char);
        vector bool int vec_reve (vector bool int);
        vector signed int vec_reve (vector signed int);
        vector unsigned int vec_reve (vector unsigned int);
        vector bool long long vec_reve (vector bool long long);
        vector signed long long vec_reve (vector signed long long);
        vector unsigned long long vec_reve (vector unsigned long long);
        vector bool short vec_reve (vector bool short);
        vector signed short vec_reve (vector signed short);
        vector double vec_reve (vector double);
        vector float vec_reve (vector float);
        * config/rs6000/rs6000-builtin.def (VREVE_V2DI, VREVE_V4SI,
        VREVE_V8HI, VREVE_V16QI, VREVE_V2DF, VREVE_V4SF, VREVE): New builtin.
        * config/rs6000/altivec.md (UNSPEC_VREVEV): New UNSPEC.
        (altivec_vreve): New pattern.
        * config/rs6000/altivec.h (vec_reve): New define.
        * doc/extend.texi (vec_rev): Update the built-in documentation file
        for the new built-in functions.

2016-06-26  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/71815
        * gimple-ssa-strength-reduction.c (uses_consumed_by_stmt): New
        function.
        (find_basis_for_candidate): Call uses_consumed_by_stmt rather than
        has_single_use.
        (slsr_process_phi): Likewise.
        (replace_uncond_cands_and_profitable_phis): Don't replace a
        multiply candidate with a stride of 1 (copy or cast).
        (phi_incr_cost): Call uses_consumed_by_stmt rather than
        has_single_use.
        (lowest_cost_path): Likewise.
        (total_savings): Likewise.

2017-06-26  Richard Biener  <rguenther@suse.de>

        PR target/81175
        * config/i386/i386.c (ix86_init_mmx_sse_builtins):
        Use def_builtin_pure for all gather builtins.

2017-06-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81203
        * tree-tailcall.c (find_tail_calls): Do not move stmts into
        non-dominating BBs.

2017-06-26  Marek Polacek  <polacek@redhat.com>

        PR c/80116
        * doc/invoke.texi: Document -Wmultistatement-macros.

2017-06-26  Christophe Lyon  <christophe.lyon@linaro.org>

        * doc/sourcebuild.texi (ARM-specific attributes): Document new
        arm_neon_ok_no_float_abi effective target.

2017-06-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80928
        * cfghooks.c (duplicate_block): Do not copy BB_DUPLICATED flag.
        (copy_bbs): Set BB_DUPLICATED flag early.
        (execute_on_growing_pred): Do not execute for BB_DUPLICATED
        marked blocks.
        (execute_on_shrinking_pred): Likewise.
        * tree-ssa.c (ssa_redirect_edge): Do not look for PHI args in
        BB_DUPLICATED blocks.
        * tree-ssa-phionlycoprop.c (eliminate_degenerate_phis_1): Properly
        iterate over all PHIs considering removal of *gsi.

2017-06-23  Jim Wilson  <jim.wilson@linaro.org>

        * doc/invoke.texi (AArch64 Options, -mtune): Re-add falkor and
        qdf24xx.

2017-06-23  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        * config/rs6000/rs6000-string.c: (expand_block_clear,
        do_load_for_compare, select_block_compare_mode,
        compute_current_alignment, expand_block_compare,
        expand_strncmp_align_check, expand_strn_compare,
        expand_block_move, rs6000_output_load_multiple)
        Move functions related to string/block move/compare
        to a separate file.
        * config/rs6000/rs6000.c: Move above functions to rs6000-string.c.
        * config/rs6000/rs6000-protos.h (rs6000_emit_dot_insn): Add prototype
        for this function which is now used in two files.
        * config/rs6000/t-rs6000: Add rule to compile rs6000-string.o.
        * config.gcc: Add rs6000-string.o to extra_objs for
        targets powerpc*-*-* and rs6000*-*-*.

2017-06-23  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/80510
        * config/rs6000/rs6000.md (ALTIVEC_DFORM): Do not allow DImode in
        32-bit, since indexed is not valid for DImode.
        (mov<mode>_hardfloat32): Reorder ISA 2.07 load/stores before ISA
        3.0 d-form load/stores to be the same as mov<mode>_hardfloat64.
        (define_peephole2 for Altivec d-form load): Add 32-bit support.
        (define_peephole2 for Altivec d-form store): Likewise.

        PR ipa/81185
        * multiple_target.c (create_dispatcher_calls): Only create the
        dispatcher call if the function is the default clone of a
        versioned function.

2017-06-23  Segher Boessenkool  <segher@kernel.crashing.org>

        PR middle-end/80902
        * builtins.c (expand_builtin_atomic_fetch_op): If emitting code after
        a call, force the call to not be a tail call.

2017-06-23  Jeff Law  <law@redhat.com>

        * doc/contrib.texi: Add entry for Steven Pemberton's work on
        enquire.

2017-06-23  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c: Add include of ssa-propagate.h for
        update_call_from_tree().  (rs6000_gimple_fold_builtin): Add
        handling for early expansion of vector shifts (sl,sr,sra,rl).
        (builtin_function_type): Add vector shift right instructions
        to the unsigned argument list.

2017-06-23  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        rtl-optimizatoin/79286
        * ira.c (update_equiv_regs): Revert to using may_trap_or_fault_p again.
        * rtlanal.c (rtx_addr_can_trap_p_1): SYMBOL_REF_FUNCTION_P can never
        trap.  PIC register plus a const unspec without offset can never trap.

2017-06-23  Marc Glisse  <marc.glisse@inria.fr>

        * tree.h (builtin_structptr_type): New type.
        (builtin_structptr_types): Declare new array.
        * tree.c (builtin_structptr_types): New array.
        (free_lang_data, build_common_tree_nodes): Use it.

2017-06-23  Jonathan Wakely  <jwakely@redhat.com>

        PR c++/81187
        * doc/invoke.texi (-Wnoexcept-type): Fix name of option, from
        -Wnoexcept.

2017-06-22  Matt Turner  <mattst88@gmail.com>

        * config/i386/driver-i386.c (host_detect_local_cpu): Add Kaby
        Lake models to skylake case.  Assume skylake for unknown
        models with clflushopt.

2017-06-22  Jeff Law  <law@redhat.com>

        * config/aarch64/aarch64.c (aarch64_emit_probe_stack_range): Handle
        frame sizes that do not satisfy aarch64_uimm12_shift.

2017-06-22  Jan Hubicka <hubicka@ucw.cz>

        * profile-count.h (apply_probability,
        apply_scale, probability_in): Fix checks for zero.

2017-06-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * incpath.c (add_sysroot_to_chain): Allow for $SYSROOT prefix.
        * doc/cppdiropts.texi (-I @var{dir}): Document it.

2016-06-22  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_model_reduction_cost): Handle
        COND_REDUCTION and INTEGER_INDUC_COND_REDUCTION without
        REDUC_MAX_EXPR support.
        (vectorizable_reduction): Likewise.
        (vect_create_epilog_for_reduction): Likewise.

2017-06-22  James Greenhalgh  <james.greenhalgh@arm.com>

        * match.pd (A / (1 << B) -> A >> B): New.
        * generic-match-head.c: Include optabs-tree.h.
        * gimple-match-head.c: Likewise.
        * optabs-tree.h (target_supports_op_p): New.
        * optabs-tree.c (target_supports_op_p): New.

2017-06-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_ld_static_dynamic): Also check stderr for
        $gcc_cv_ld --help output.
        (gcc_cv_ld_demangle): Likewise.
        (gcc_cv_ld_eh_frame_hdr): Likewise.
        (gcc_cv_ld_pie): Likewise.
        (gcc_cv_ld_as_needed): Likewise.  Prefer native forms unless $gnu_ld.
        (gcc_cv_ld_buildid): Likewise.
        (gcc_cv_ld_sysroot): Likewise.
        (ld_bndplt_support): Likewise.
        (ld_pushpopstate_support): Likewise.
        * configure: Regenerate.
        * config/sol2.h [!USE_GLD] (SYSROOT_SPEC): Define.

2017-06-21  Jakub Jelinek  <jakub@redhat.com>

        PR target/81151
        * config/i386/sse.md (round<mode>2): Renumber match_dup and
        operands indexes to avoid gap between operands and match_dups.

2017-06-21  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-cost-tables.h (thunderx_extra_costs):
        Increment Arith_shift and Arith_shift_reg by 1.
        * config/aarch64/aarch64-tuning-flags.def (cheap_shift_extend):
        New tuning flag.
        * config/aarch64/aarch64.c (thunderx_tunings): Enable
        AARCH64_EXTRA_TUNE_CHEAP_SHIFT_EXTEND.
        (aarch64_strip_extend): Add new argument and test for it.
        (aarch64_cheap_mult_shift_p): New function.
        (aarch64_rtx_mult_cost): Call aarch64_cheap_mult_shift_p and don't
        add a cost if it is true.
        Update calls to aarch64_strip_extend.
        (aarch64_rtx_costs): Update calls to aarch64_strip_extend.

2017-06-21  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-cores.def (thunderxt88p1): Use thunderxt88
        tunings.
        (thunderxt88): Likewise.
        * config/aarch64/aarch64.c (thunderxt88_prefetch_tune): New variable.
        (thunderx_prefetch_tune): New variable.
        (thunderx2t99_prefetch_tune): Update for the correct values.
        (thunderxt88_tunings): New variable.
        (thunderx_tunings): Use thunderx_prefetch_tune instead of
        generic_prefetch_tune.
        (thunderx2t99_tunings): Use AUTOPREFETCHER_WEAK.

2017-06-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/atomics.md (aarch64_compare_and_swap<mode>_lse,
        SHORT): Relax operand 3 to aarch64_reg_or_zero and constraint to Z.
        (aarch64_compare_and_swap<mode>_lse, GPI): Likewise.
        (aarch64_atomic_cas<mode>, SHORT): Likewise for operand 2.
        (aarch64_atomic_cas<mode>, GPI): Likewise.

2017-06-21  Martin Liska  <mliska@suse.cz>

        * gimplify.c (gimplify_label_expr): Insert GIMPLE_PREDICT
        statements on cold and hot labels.
        * predict.c (tree_estimate_probability_bb): Remove the
        prediction from this place.

2017-06-21  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/79489
        * gimplify.c (maybe_add_early_return_predict_stmt): New
        function.
        (gimplify_return_expr): Call the function.
        * predict.c (tree_estimate_probability_bb): Remove handling
        of early return.
        * predict.def: Update comment about early return predictor.
        * gimple-predict.h (is_gimple_predict): New function.
        * predict.def: Change default value of early return to 66.
        * tree-tailcall.c (find_tail_calls): Skip GIMPLE_PREDICT
        statements.
        * passes.def: Put pass_strip_predict_hints to the beginning of
        IPA passes.

2017-06-21  Pierre-Marie de Rodat  <derodat@adacore.com>

        * dwarf2out.c (gen_decl_die): Remove the guard to skip file-scope
        FUNCTION_DECL declarations.
        (dwarf2out_early_global_decl): Remove the guard to skip FUNCTION_DECL
        declarations.
        (dwaf2out_decl): Likewise.
        * godump.c (go_early_global_decl): Skip call to the real debug hook
        for FUNCTION_DECL declarations.
        * passes.c (rest_of_decl_compilation): Skip call to the
        early_global_decl debug hook for FUNCTION_DECL declarations, unless
        -fdump-go-spec is passed.

2017-06-21  Marc Glisse  <marc.glisse@inria.fr>

        * config/i386/i386.c (struct builtin_isa): New field pure_p.
        Reorder for compactness.
        (def_builtin, def_builtin2, ix86_add_new_builtins): Handle pure_p.
        (def_builtin_pure, def_builtin_pure2): New functions.
        (ix86_init_mmx_sse_builtins) [__builtin_ia32_stmxcsr]: Mark as pure.

2017-06-21  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (nop_convert): New predicate.
        ((A +- CST1) +- CST2): Allow some NOP conversions.

2017-06-21  Jakub Jelinek  <jakub@redhat.com>

        PR c++/81130
        * gimplify.c (omp_add_variable): Don't force GOVD_SEEN for types
        with ctors/dtors if GOVD_SHARED is set.

2017-06-21  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.md (movti_aarch64):
        Emit mov rather than orr.
        (movtf_aarch64): Likewise.
        * config/aarch64/aarch64-simd.md (aarch64_simd_mov):
        Emit mov rather than orr.

2017-06-21  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64-simd.md (aarch64_simd_dup):
        Swap alternatives, make integer dup more expensive.

2017-06-21  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_legitimate_constant_p):
        Return true for non-tls symbols.

2017-06-21  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64-cores.def (cortex-a55): New.
        (cortex-a75): Likewise.
        (cortex-a75.cortex-a55): Likewise.
        * config/aarch64/aarch64-tune.md: Regenerate.
        * doc/invoke.texi (-mtune): Document new values for -mtune.

2017-06-21  Tom de Vries  <tom@codesourcery.com>

        * doc/sourcebuild.texi (Add Options, Features for dg-add-options): Add
        stack_size feature.
        (Effective-Target Keywords, Other attributes): Suggest using
        dg-add-options stack_size feature to get stack limit in stack_size
        effective target documentation.

2017-06-21  Julian Brown  <julian@codesourcery.com>
            Naveen H.S  <Naveen.Hurugalawadi@cavium.com>

        * config/aarch64/aarch64-simd.md (aarch64_crypto_pmulldi)
        (aarch64_crypto_pmullv2di): Change type attribute to crypto_pmull.
        * config/aarch64/thunderx2t99.md (thunderx2t99_pmull): New
        reservation.
        * config/arm/cortex-a53.md (cortex_a53_advsimd_type): Add crypto_pmull to
        attribute type list for neon_multiply.
        * config/arm/cortex-a57.md (cortex_a57_neon_type): Add crypto_pmull to
        attribute type list for neon_multiply.
        * config/arm/crypto.md (crypto_vmullp64): Change type to crypto_pmull.
        * config/arm/exynos-m1.md (exynos_m1_neon_type): Add crypto_pmull to
        attribute type list for neon_multiply.
        * config/arm/types.md (crypto_pmull): Add.
        * config/arm/xgene1.md (xgene1_neon_pmull): Add crypto_pmull to
        attribute type list.

2017-06-20  Andreas Tobler  <andreast@gcc.gnu.org>

        * config.gcc (armv6*-*-freebsd*): Change the target_cpu_cname to
        arm1176jzf-s.

2017-06-20  Jakub Jelinek  <jakub@redhat.com>

        * ira-costs.c (find_costs_and_classes): Initialize cost_classes later
        to make sure not to dereference a NULL cost_classes_ptr pointer.

2017-06-20  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        ALTIVEC_BUILTIN_VMULESW, ALTIVEC_BUILTIN_VMULEUW,
        ALTIVEC_BUILTIN_VMULOSW, ALTIVEC_BUILTIN_VMULOUW entries.
        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin,
        builtin_function_type): Add ALTIVEC_BUILTIN_* case statements.
        * config/rs6000/altivec.md (MVULEUW, VMULESW, VMULOUW,
        VMULOSW): New enum "unspec" values.
        (vec_widen_umult_even_v4si, vec_widen_smult_even_v4si,
        vec_widen_umult_odd_v4si, vec_widen_smult_odd_v4si,
        altivec_vmuleuw, altivec_vmulesw, altivec_vmulouw,
        altivec_vmulosw): New patterns.
        * config/rs6000/rs6000-builtin.def (VMLEUW, VMULESW, VMULOUW,
        VMULOSW): Add definitions.

2017-06-20  Julia Koval  <julia.koval@intel.com>

        * config/i386/i386.c: Fix rounding expand for new pattern.
        * config/i386/subst.md: Fix pattern (parallel -> unspec).

2017-06-20  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64-option-extensions.def (rcpc): New.
        * config/aarch64/aarch64.h (AARCH64_FL_RCPC): New.

2017-06-20  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64-option-extensions.def (fp16): Fix expected
        feature string.

2017-06-20  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64-cores.def: Rearrange to sort by
        architecture, then by implementer ID.
        * config/aarch64/aarch64-tune.md: Regenerate.

2017-06-20  Richard Biener  <rguenther@suse.de>

        PR middle-end/81097
        * fold-const.c (split_tree): Fold to type before negating.

2017-06-20  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c
        (selftest::test_fixit_deletion_affecting_newline): New function.
        (selftest::diagnostic_show_locus_c_tests): Call it.

2017-06-20  Andreas Schwab  <schwab@suse.de>

        PR target/80970
        * config/m68k/m68k.md (bsetdreg, bchgdreg, bclrdreg): Use "=d"
        instead of "+d".

2017-06-20  Prakhar Bahuguna  <prakhar.bahuguna@arm.com>

        * config/arm/arm-c.c (arm_cpu_builtins): New block to define
        __ARM_FEATURE_COPROC according to support.

2017-06-20  Jakub Jelinek  <jakub@redhat.com>

        * tree-chkp.c (chkp_get_hard_register_var_fake_base_address):
        Rewritten to avoid overflow for > 32-bit pointers.

        PR sanitizer/81125
        * ubsan.h (ubsan_encode_value): Workaround buggy clang++ parser
        by removing enum keyword.
        (ubsan_type_descriptor): Likewise.  Formatting fix.

        PR target/81121
        * config/i386/i386.md (TARGET_USE_VECTOR_CONVERTS float si->{sf,df}
        splitter): Require TARGET_SSE2 in the condition.

2017-06-20  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/79799
        * config/rs6000/rs6000.c (rs6000_expand_vector_init): Add support
        for doing vector set of SFmode on ISA 3.0.
        * config/rs6000/vsx.md (vsx_set_v4sf_p9): Likewise.
        (vsx_set_v4sf_p9_zero): Special case setting 0.0f to a V4SF
        element.
        (vsx_insert_extract_v4sf_p9): Add an optimization for inserting a
        SFmode value into a V4SF variable that was extracted from another
        V4SF variable without converting the element to double precision
        and back to single precision vector format.
        (vsx_insert_extract_v4sf_p9_2): Likewise.

2017-06-19  Jakub Jelinek  <jakub@redhat.com>

        * tree-ssa-structalias.c (get_constraint_for_ptr_offset): Multiply
        in UWHI to avoid undefined overflow.

        PR sanitizer/81125
        * ubsan.h (enum ubsan_encode_value_phase): New.
        (ubsan_encode_value): Change second argument to
        enum ubsan_encode_value_phase with default value of
        UBSAN_ENCODE_VALUE_GENERIC.
        * ubsan.c (ubsan_encode_value): Change second argument to
        enum ubsan_encode_value_phase PHASE from bool IN_EXPAND_P,
        adjust uses, for UBSAN_ENCODE_VALUE_GENERIC use just
        create_tmp_var_raw instead of create_tmp_var and use a
        TARGET_EXPR.
        (ubsan_expand_bounds_ifn, ubsan_build_overflow_builtin,
        instrument_bool_enum_load, ubsan_instrument_float_cast): Adjust
        ubsan_encode_value callers.

        PR sanitizer/81111
        * ubsan.c (ubsan_encode_value): If current_function_decl is NULL,
        use create_tmp_var_raw instead of create_tmp_var, mark it addressable
        just by setting TREE_ADDRESSABLE on the result and use a TARGET_EXPR.

2017-06-19  Richard Biener  <rguenther@suse.de>

        PR middle-end/81118
        * tree-cfgcleanup.c (cleanup_tree_cfg_noloop): Clear niter
        estimates if we changed anything.

2017-06-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80887
        * tree-ssa-sccvn.c (mprts_hook_cnt): New global.
        (vn_lookup_simplify_result): Allow only mprts_hook_cnt succesful
        simplified lookups, then reset mprts_hook.
        (vn_nary_build_or_lookup_1): Set mprts_hook_cnt to 9 before
        simplifying.
        (try_to_simplify): Likewise.

2017-06-19  Martin Liska  <mliska@suse.cz>

        PR sanitizer/80879
        * gimplify.c (gimplify_switch_expr):
        Initialize live_switch_vars for SWITCH_BODY == STATEMENT_LIST.

2017-06-19  Martin Liska  <mliska@suse.cz>

        * doc/install.texi: Document that PGO runs in 4 stages.

2017-06-19  Martin Liska  <mliska@suse.cz>

        PR ipa/80732
        * attribs.c (make_dispatcher_decl): Do not append '.ifunc'
        to dispatcher function name.
        * multiple_target.c (replace_function_decl): New function.
        (create_dispatcher_calls): Redirect both edges and references.

2017-06-19  Jan Hubicka <hubicka@ucw.cz>

        * profile-count.c (profile_count::dump): Dump quality.
        (profile_count::differs_from_p): Update for unsigned val.
        * profile-count.h (profile_count_quality): New enum.
        (profile_count): Turn m_val to 62bit unsigned, add quality tracking.

2017-06-19  Richard Biener  <rguenther@suse.de>

        * tree-ssa-loop-niter.h (estimate_numbers_of_iterations): Take
        struct function as arg.
        (estimate_numbers_of_iterations): Export overload with loop arg.
        (free_numbers_of_iterations_estimates_loop): Use an overload of
        free_numbers_of_iterations_estimates instead.
        * tree-cfg.c (remove_bb): Adjust.
        * tree-cfgcleanup.c (remove_forwarder_block_with_phi): Likewise.
        * tree-parloops.c (gen_parallel_loop): Likewise.
        * tree-ssa-loop-ivcanon.c (canonicalize_induction_variables):
        Likewise.
        (tree_unroll_loops_completely): Likewise.
        * tree-ssa-loop-niter.c (estimate_numbers_of_iterations_loop):
        Use an overload instead and export.
        (estimated_loop_iterations): Adjust.
        (max_loop_iterations): Likewise.
        (likely_max_loop_iterations): Likewise.
        (estimate_numbers_of_iterations): Take struct function as arg
        and adjust.
        (loop_exits_before_overflow): Adjust.
        (free_numbers_of_iterations_estimates_loop): Use an overload.
        * tree-vect-loop.c (vect_analyze_loop_form): Adjust.
        * tree-vectorizer.c (vect_free_loop_info_assumptions): Likewise.

2017-06-19  Richard Biener  <rguenther@suse.de>

        PR ipa/81112
        * ipa-prop.c (find_constructor_constant_at_offset): Handle
        RANGE_EXPR conservatively.

2017-06-16  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        definitions for vec_float, vec_float2, vec_floato,
        vec_floate built-ins.
        * config/rs6000/vsx.md (define_c_enum "unspec"): Add RTL code
        for instructions vsx_xvcvsxws vsx_xvcvuxwsp, float2, floato and
        floate.
        * config/rs6000/rs6000-builtin.def (FLOAT2_V2DI, FLOATE_V2DF,
        FLOATE_2DI, FLOATO_V2DF, FLOATEE_V2DI, XVCVSXWSP_V4SF,
        UNS_FLOATO_V2DI, UNS_FLOATE_V2DI): Add definitions.
        * config/altivec.md (define_insn "p8_vmrgew_<mode>",
        define_mode_attr VF_sxddp): Add V4SF type to p8_vmrgew.
        * config/rs6000/altivec.h (vec_float, vec_float2, vec_floate,
        vec_floato): Add builtin defines.
        * doc/extend.texi (vec_float, vec_float2, vec_floate, vec_floato):
        Update the built-in documentation file for the new built-in
        functions.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.opt (marm): Mark as the negative of of -mthumb.
        (mthumb): Mark as the negative of -marm.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * doc/invoke.texi (ARM Options, -mcpu): Document supported
        extension options.
        (ARM Options, -mtune): Document that this accepts the same
        extension options as -mcpu.
        (ARM Options, -mfpu): Document addition of -mfpu=auto.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * doc/invoke.texi (ARM Options, -march=): Document new syntax and
        permitted extensions.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm-cpus.in (armv7): Add extension +nofp.
        (armv7-r): Add aliases vfpv3xd and vfpv3-d16.
        (armv8-m.main): Add option +nodsp.
        * config/arm/arm-cpu-cdata.h: Regenerated.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/t-fuchsia: New file.
        * config.gcc (arm*-*-fuchsia*): Use it.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/t-symbian: Rewrite for new option infrastructure.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/t-phoenix (MULTILIB_REUSE): Clear variable.
        (MULTILIB_REQUIRED): Likewise.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/t-linux-eabi (MULTILIB_EXCEPTIONS): Set to empty.
        (MULTILIB_RESUE): Likewise.
        (MULTILIB_MATCHES): Likewise.
        (MULTLIB_REQUIRED): Likewise.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/t-rtems: Rewrite for new option framework.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/t-aprofile (v7_a_nosimd_variants, v7_a_simd_variants)
        (v7ve_nosimd_variatns, v7ve_vfpv3_simd_variants)
        (v7ve_vfpv4_simd_variants, v8_a_nosimd_variants, v8_a_simd_variants)
        (v8_1_a_simd_variants, v8_2_a_simd_variants): Move to ...
        * config/arm/t-multilib: ... here.
        (MULTILIB_OPTIONS): Add armv7 and armv7+fp architectures.
        (MULTILIB_MATCHES): Use armv7 libraries for armv7-r.  Also use for
        armv7-a and armv8*-a when A-profile libraries have not been built.
        * config/arm/t-rmprofile: Rewrite.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * genmultilib (multilib_reuse): Allow an explicit period to be escaped
        with a backslash.  Remove the backslash after substituting unescaped
        periods.
        * doc/fragments.texi (MULTILIB_REUSE): Document it.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config.gcc: (arm*-*-*): When building a-profile libraries, force
        the driver to pass through the default setting of -mfloat-abi.
        * common/config/arm/arm-common.c (arm_target_thumb_only): Return -marm
        rather than NULL.
        * config/arm/t-multilib (MULTILIB_REUSE): Initialize to empty.
        (all_feat_combs): New rule.
        (MULTILIB_OPTIONS): Use explicit ARM and Thumb directories.  Rework
        default libraries.
        * config/arm/t-aprofile: Rewrite.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.h (FPUTYPE_AUTO): Define.
        * config/arm/arm.c (arm_option_override): Use FPUTYPE_AUTO if the
        fpu is not specified by the user/command-line.
        * config/arm/bpabi.h (FPUTYPE_DEFAULT): Delete.
        * config/arm/netbsd-elf.h (FPUTYPE_DEFAULT): Delete.
        * config/arm/linux-elf.h (FPUTYPE_DEFAULT): Delete.
        * config/arm/vxworks.h (FPUTYPE_DEFAULT): Delete.
        * common/config/arm/arm-common.c (arm_canon_arch_option): Use
        FPUTYPE_AUTO insted of FPUTYPE_DEFAULT.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/elf.h (MULTILIB_DEFAULTS): Delete.
        * config/arm/t-arm-elf: Rewritten.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.h (TARGET_HARD_FLOAT): Also check that we
        have some floating-point instructions.
        (TARGET_SOFT_FLOAT): Define as inverse of TARGET_HARD_FLOAT.
        (TARGET_MAYBE_HARD_FLOAT): New macro.
        * config/arm/arm-builtins.c (arm_init_builtins): Use
        TARGET_MAYBE_HARD_FLOAT.
        * config/arm/arm.c (arm_option_override): Use TARGET_HARD_FLOAT_ABI.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * common/config/arm/arm-common.c: Define INCLUDE_LIST.
        (configargs.h): Include it.
        (arm_print_hint_for_fpu_option): New function.
        (arm_parse_fpu_option): New function.
        (candidate_extension): New class.
        (arm_canon_for_multilib): New function.
        * config/arm/arm.h (CANON_ARCH_SPEC_FUNCTION): New macro.
        (EXTRA_SPEC_FUNCTIONS): Add CANON_ARCH_SPEC_FUNCTION.
        (ARCH_CANONICAL_SPECS): New macro.
        (DRIVER_SELF_SPECS): Add ARCH_CANONICAL_SPECS.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config.gcc (arm*-*-*): Ensure both target_cpu_cname and with_cpu
        are set after handling multilib fragments.  Set target_cpu_default2
        from with_cpu.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config.gcc (arm*-*-fucshia*): Set target_cpu_cname to the real
        cpu name.
        (arm*-*-*): Set target_cpu_default2 to a quoted string.
        * config/arm/parsecpu.awk (check_cpu): Validate any extension
        options.
        (check_arch): Likewise.
        * config/arm/arm.c (arm_configure_build_target): Handle
        TARGET_CPU_DEFAULT being a string constant.  Scan any feature
        options in the default.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm-protos.h (cpu_arch_extension): Add field to record
        when an option is an alias of another.
        * config/arm/parsecpu.awk (optalias): New parser token.
        (gen_comm_data): Mark non-alias options as such.  Emit entries
        for extension aliases.
        * config/arm/arm-cpus.in (armv5e): Make vfpv2 an alias.
        (armv5te, armv5tej, armv6, armv6j, armv6k, armv6z): Likewise.
        (armv6kz, armv6zk, armv6t2): Likewise.
        (armv7): Make vfpv3-d16 an alias.
        (armv7-a): Make vfpv3-d16, neon and neon-vfpv3 aliases.  Sort in
        canonical order.
        (armv7ve): Make vfpv4-d16, neon-vfpv3 and neon-vfpv4 aliases.
        Sort in canonical order.
        (armv8-a): Sort in canonical order.
        (armv8.1-a, armv8.2-a):  Likewise.
        (generic-armv7-a): Make neon and neon-vfpv3 aliases.  Sort in
        canonical order.
        (cortex-a9): Sort in canonical order.
        * config/arm/arm.c (selftests.h): Include it.
        (arm_test_cpu_arch_data): New function.
        (arm_run_self_tests): New function.
        (TARGET_RUN_TARGET_SELFTESTS): Redefine.
        (targetm): Move declaration to the end of the file.
        * arm-cpu-cdata.h: Regenerated.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.h (TARGET_MODE_SPECS): Add additional parameter to
        call to target_mode_check describing the type of option passed.
        * common/config/arm/arm-common.c (arm_arch_core_flag): Delete.
        (arm_target_thumb_only): Use arm_parse_arch_option_name or
        arm_parse_cpu_option_name to match parameters against list of
        available targets.
        * config/arm/parsecpu.awk (gen_comm_data): Don't generate
        arm_arch_core_flags data structure.
        * config/arm/arm-cpu_cdata.h: Regenerated.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * common/config/arm/arm-common.c (arm_initialize_isa): Moved here from
        config/arm/arm.c.
        (arm_print_hint_for_cpu_option): Likewise.
        (arm_print_hint_for_arch_option): Likewise.
        (arm_parse_cpu_option_name): Likewise.
        (arm_parse_arch_option_name): Likewise.
        * config/arm/arm.c (arm_identify_fpu_from_isa): Use the computed number
        of entries in the all_fpus list.
        * config/arm/arm-protos.h (all_architectures, all_cores): Declare.
        (arm_parse_cpu_option_name): Declare.
        (arm_parse_arch_option_name): Declare.
        (arm_parse_option_features): Declare.
        (arm_intialize_isa): Declare.
        * config/arm/parsecpu.awk (gen_data): Move CPU and architecture
        data tables to ...
        (gen_comm_data): ... here.  Make definitions non-static.
        * config/arm/arm-cpu-data.h: Regenerated.
        * config/arm/arm-cpu-cdata.h: Regenerated.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm-protos.h (arm_build_target): Remove arch_core.
        (cpu_arch_extension): New structure.
        (cpu_arch_option, arch_option, cpu_option): New structures.
        * config/arm/parsecpu.awk (gen_headers): Build an enumeration of
        architecture types.
        (gen_data): Generate new format data tables.
        * config/arm/arm.c (cpu_tune): New structure.
        (cpu_option, processors): Delete.
        (arm_print_hint_for_core_or_arch): Delete.  Replace with ...
        (arm_print_hint_for_cpu_option): ... this and ...
        (arm_print_hint_for_arch_option): ... this.
        (arm_parse_arch_cpu_name): Delete.  Replace with ...
        (arm_parse_cpu_option_name): ... this and ...
        (arm_parse_arch_option_name): ... this.
        (arm_unrecognized_feature): Change type of target parameter to
        cpu_arch_option.
        (arm_parse_arch_cpu_features): Delete.  Replace with ...
        (arm_parse_option_features): ... this.
        (arm_configure_build_target): Rework to use new configuration data
        tables.
        (arm_print_tune_info): Rework for new configuration data tables.
        * config/arm/arm-cpu-data.h: Regenerated.
        * config/arm/arm-cpu.h: Regenerated.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * Makefile.in (OBJS): Move sbitmap.o from here ...
        (OBJS-libcommon): ... to here.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm-isa.h (ISA_ALL_FPU_INTERNAL): Renamed from ISA_ALL_FPU.
        (ISA_ALL_CRYPTO): New macro.
        (ISA_ALL_SIMD): New macro
        (ISA_ALL_FP): New macro.
        * config/arm/arm.c (fpu_bitlist): Update initializer.
        * config/arm/arm-cpus.in: Use new ISA_ALL macros to disable crypto,
        simd or fp.
        (arm9e): Add fpu.  Add option for nofp
        (arm946e-s, arm966e-s, arm968e-s, arm10e, arm1020e, arm1022e): Likewise.
        (arm926ej-s, arm1026ej-s): Likewise.
        (generic-armv7-a): Add fpu.  Add options for simd, vfpv3, vfpv3-d16,
        vfpv3-fp16, vfpv3-d16-fp16, vfpv4, vfpv4-d16, neon, neon-vfp3,
        neon-fp16, neon-vfpv4, nofp and nosimd.
        (cortex-a5, cortex-a7): Add fpu.  Add options for nosimd and nofp.
        (cortex-a8): Add fpu.  Add option for nofp.
        (cortex-a9): Add fpu.  Add options for nosimd and nofp.
        (cortex-a12, cortex-a15, cortex-a17): Add fpu.  Add option for nofp.
        (cortex-r4f): Add fpu.
        (cortex-r5): Add fpu.  Add options for nofp.dp and nofp.
        (cortex-r7): Use idiv option from architecture.  Add fpu.  Add option
        for nofp.
        (cortex-r8): Likewise.
        (cortex-m4): Add fpu.  Add option for nofp.
        (cortex-a15.cortex-a7): Add fpu.  Add option for nofp.
        (cortex-a17.cortex-a7): Likewise.
        (cortex-a32): Add fpu.  Add options for crypto and nofp.
        (cortex-a35, cortex-a53): Likewise.
        (cortex-a57): Add fpu.  Add option for crypto.
        (cortex-a72, cortex-a73): Likewise.
        (exynos-m1): Likewise.
        (cortex-a57.cortex-a53, cortex-a72.cortex-a53): Likewise.
        (cortex-a73.cortex-a35, cortex-a73.cortex-a53): Likewise.
        (cortex-m33): Add fpu.  Add option for nofp.
        * config/arm/arm-cpu-cdata.h: Regenerated
        * config/arm/arm-cpu-data.h: Regenerated.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * arm-cpus.in (armv5e): Add options fp, vfpv2 and nofp.
        (armv5te, armv5tej): Likewise.
        (armv6, armv6j, armv6k, armv6z, armv6kz, armv6zk, armv6t2): Likewise.
        (armv7): Add options fp and vfpv3-d16.
        (armv7-a): Add options fp, simd, vfpv3, vfpv3-d16, vfpv3-d16-fp16,
        vfpv3-fp16, vfpv4, vfpv4-d16, neon, neon-vfpv3, neon-fp16, neon-vfpv4,
        nofp and nosimd.
        (armv7ve): Likewise.
        (armv7-r): Add options fp, fp.sp, idiv, nofp and noidiv.
        (armv7e-m): Add options fp, fpv5, fp.dp and nofp.
        (armv8-a): Add nocrypto option.
        (armv8.1-a, armv8.2-a): Likewise.
        (armv8-m.main): add options fp, fp.dp and nofp.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm-cpus.in (armv8-a): Add options crc, simd crypto and
        nofp.
        (armv8-a+crc): Delete.
        (armv8.1-a): Add options simd, crypto and nofp.
        (armv8.2-a): Add options fp16, simd, crypto and nofp.
        (armv8.2-a+fp16): Delete.
        (armv8-m.main): Add option dsp.
        (armv8-m.main+dsp): Delete.
        (cortex-a8): Add fpu.  Add nofp option.
        (cortex-a9): Add fpu.  Add nofp and nosimd options.
        * config/arm/parsecpu.awk (gen_data): Generate option tables and
        link to main cpu and architecture data structures.
        (gen_comm_data): Only put isa attributes from the main architecture
        in common tables.
        (option): New statement for architecture and CPU entries.
        * arm.c (struct cpu_option): New structure.
        (struct processors): Add entry for options.
        (arm_unrecognized_feature): New function.
        (arm_parse_arch_cpu_name): Ignore any characters after the first
        '+' character.
        (arm_parse_arch_cpu_feature): New function.
        (arm_configure_build_target): Separate out any CPU and architecture
        features and parse separately.  Don't error out if -mfpu=auto is
        used with only an architecture string.
        (arm_print_asm_arch_directives): New function.
        (arm_file_start): Call it.
        * config/arm/arm-cpu-cdata.h: Regenerated.
        * config/arm/arm-cpu-data.h: Likewise.
        * config/arm/arm-tables.opt: Likewise.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/elf.h (ASM_SPEC): Only pass -mfpu through to the
        assembler when it is not -mfpu=auto.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.h (BIG_LITTLE_SPEC): Delete macro.
        (ASM_REWRITE_SPEC_FUNCTIONS): New macro.
        (BIG_LITTLE_CPU_SPEC_FUNCTIONS): Delete macro.
        (ASM_CPU_SPEC): Rewrite.
        (MCPU_MTUNE_NATIVE_FUNCTIONS): New macro.
        (EXTRA_SPEC_FUNCTIONS): Move outside of ifdef.  Use
        MCPU_MTUNE_NATIVE_FUNCTIONS and ASM_REWRITE_SPEC_FUNCTIONS.  Remove
        reference to BIG_LITTLE_CPU_SPEC_FUNCTIONS.
        * common/config/arm/arm-common.c (arm_rewrite_selected_cpu): Ensure
        copied string is NUL-terminated.  Also strip any characters prefixed
        by '+'.
        (arm_rewrite_selected_arch): New function.
        (arm_rewrite_march): New function.

2017-06-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.opt (x_arm_arch_string): New TargetSave option.
        (x_arm_cpu_string, x_arm_tune_string): Likewise.
        (march, mcpu, mtune): Convert to string-based options.
        * config/arm/arm.c (arm_print_hint_for_core_or_arch): New function.
        (arm_parse_arch_cpu_name): New function.
        (arm_configure_build_target): Use arm_parse_arch_cpu_name to
        identify selected architecture or CPU.
        (arm_option_save): New function.
        (TARGET_OPTION_SAVE): Redefine.
        (arm_option_restore): Restore string options.
        (arm_option_print): Print string options.

2017-06-16  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/80933
        PR tree-optimization/80934
        * builtins.c (fold_builtin_3): Do not handle bcmp here.
        * gimple-fold.c (gimple_fold_builtin_bcmp): New function.
        (gimple_fold_builtin_bcopy, gimple_fold_builtin_bzero): Likewise.
        (gimple_fold_builtin): Call them.

2017-06-16  Jan Hubicka  <hubicka@ucw.cz>

        * gimple-ssa-isolate-paths.c (isolate_path): Set edge leading to path
        as unlikely; update profile.

2017-06-16  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (force_edge_cold): Handle declaring edges impossible
        more aggresively.

2017-06-16  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-ivcanon.c (remove_exits_and_undefined_stmts): Update
        profile.
        (try_unroll_loop_completely): Fix reporting.

2017-06-16  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-tail-merge.c (replace_block_by): Fix profile updating.

2017-06-16  James Greenhalgh  <james.greenhalgh@arm.com>

        PR target/71778
        * config/arm/arm-builtins.c (arm_expand_builtin_args): Return TARGET
        if given a non-constant argument for an intrinsic which requires a
        constant.

2017-06-16  Jan Hubicka  <hubicka@ucw.cz>

        * profile.c (compare_freqs): New function.
        (branch_prob): Sort edge list.
        (find_spanning_tree): Assume that the list is priority sorted.

2017-06-16  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81090
        * passes.def (pass_record_bounds): Remove.
        * tree-pass.h (make_pass_record_bounds): Likewise.
        * tree-ssa-loop.c (pass_data_record_bounds, pass_record_bounds,
        make_pass_record_bounds): Likewise.
        * tree-ssa-loop-ivcanon.c (canonicalize_induction_variables): Do
        not free niter estimates at the beginning but at the end.
        * tree-scalar-evolution.c (scev_finalize): Free niter estimates.

2017-06-16  Richard Biener  <rguenther@suse.de>

        * tree-switch-conversion.c (emit_case_bit_tests): Adjust
        initializer to workaround ICE in host GCC 4.8.

2017-06-16  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline-transform.c (update_noncloned_frequencies): Update also
        counts.
        (clone_inlined_nodes): Update.

2017-06-16  Maxim Kuvyrkov  <maxim.kuvyrkov@linaro.org>

        * config/aarch64/aarch64.c (qdf24xx_prefetch_tune): Update
        prefetch settings, and enable prefetching by default at -O3.

2017-06-16  Maxim Kuvyrkov  <maxim.kuvyrkov@linaro.org>

        * config/aarch64/aarch64.c (aarch64_override_options_internal):
        Set flag_prefetch_loop_arrays according to tuning data.

2017-06-16  Maxim Kuvyrkov  <maxim.kuvyrkov@linaro.org>

        * config/aarch64/aarch64-protos.h (struct cpu_prefetch_tune):
        New tune structure.
        (struct tune_params): Use cpu_prefetch_tune instead of cache_line_size.
        [Unrelated to main purpose of the patch] Place the pointer field last
        to enable type checking errors when tune structure are wrongly merged.
        * config/aarch64/aarch64.c (generic_prefetch_tune,)
        (exynosm1_prefetch_tune, qdf24xx_prefetch_tune,)
        (thunderx2t99_prefetch_tune): New tune constants.
        (tune_params *_tunings): Update all tunings (no functional change).
        (aarch64_override_options_internal): Set PARAM_SIMULTANEOUS_PREFETCHES,
        PARAM_L1_CACHE_SIZE, PARAM_L1_CACHE_LINE_SIZE, and PARAM_L2_CACHE_SIZE
        from tunings structures.

2017-06-16  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/81094
        * ubsan.c (instrument_null): Add T argument, use it instead
        of computing it based on IS_LHS.
        (instrument_object_size): Likewise.
        (pass_ubsan::execute): Adjust instrument_null and
        instrument_object_size callers to pass gimple_get_lhs or
        gimple_assign_rhs1 result to it.  Use instrument_null instead of
        calling get_base_address and instrument_mem_ref.  Handle
        aggregate call arguments for object-size sanitization.

2017-06-16  Yury Gribov  <tetra2005@gmail.com>

        PR tree-optimization/81089
        * tree-vrp.c (is_masked_range_test): Validate operands of
        subexpression.

2017-06-15  Martin Sebor  <msebor@redhat.com>

        PR c++/80560
        * dumpfile.c (dump_register): Avoid calling memset to initialize
        a class with a default ctor.
        * gcc.c (struct compiler): Remove const qualification.
        * genattrtab.c (gen_insn_reserv): Replace memset with initialization.
        * hash-table.h: Ditto.
        * ipa-cp.c (allocate_and_init_ipcp_value): Replace memset with
          assignment.
        * ipa-prop.c (ipa_free_edge_args_substructures): Ditto.
        * omp-low.c (lower_omp_ordered_clauses): Replace memset with
        default ctor.
        * params.h (struct param_info): Make struct members non-const.
        * tree-switch-conversion.c (emit_case_bit_tests): Replace memset
        with default initialization.
        * vec.h (vec_copy_construct, vec_default_construct): New helper
        functions.
        (vec<T>::copy, vec<T>::splice, vec<T>::reserve): Replace memcpy
        with vec_copy_construct.
        (vect<T>::quick_grow_cleared): Replace memset with default ctor.
        (vect<T>::vec_safe_grow_cleared, vec_safe_grow_cleared): Same.
        * doc/invoke.texi (-Wclass-memaccess): Document.

2017-06-15  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * emit-rtl.h (is_leaf): Update comment about local
        register allocator.

2017-06-15  Jozef Lawrynowicz   <jozef.l@somniumtech.com>

        PR target/78818
        * config/msp430/msp430.c (msp430_data_attr): Check that it's possible
        for a variable to have a section before checking if the section has a
        name.
        Set section to.persistent if persistent attribute is set.
        Warn if .persistent attribute is used on an automatic variable.

2017-06-15  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/80474
        * reorg.c (update_block): Do not ignore instructions in a delay slot.

2017-06-15  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (add<mode>3): Use reg_or_subregno instead
        of REGNO.

2017-06-14  Maciej W. Rozycki  <macro@imgtec.com>

        * config/mips/mips.md (MIPS16_T_REGNUM): Remove constant.
        (casesi): Emit bounds checking as RTL.
        (casesi_internal_mips16_<mode>): Remove bounds checking.

2017-06-14  Max Filippov  <jcmvbkbc@gmail.com>

        * config/xtensa/xtensa.c (xtensa_option_override): Append
        MASK_CONST16 to target_flags in the absence of TARGET_L32R.
        (hwloop_optimize, hwloop_fail, hwloop_pattern_reg,
         xtensa_doloop_hooks): Define unconditionally.
        (xtensa_reorg_loops): Only call reorg_loops in the presence of
        TARGET_LOOPS.
        * config/xtensa/xtensa.h (TARGET_L32R): New definition.
        (TARGET_DEFAULT): Remove XCHAL_HAVE_L32R condition and account
        for it in xtensa_option_override.
        (HARD_FRAME_POINTER_IS_FRAME_POINTER,
         HARD_FRAME_POINTER_IS_ARG_POINTER): New definitions.

2017-06-14  Boris Kolpackov  <boris@codesynthesis.com>

        * doc/cppopts.texi: Document '-' special value to -MF.

2017-06-14  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/cortex-a53.md (cortex_a53_fpalu) Adjust latency.
        (cortex_a53_fconst): Likewise.
        (cortex_a53_fpmul): Likewise.
        (cortex_a53_f_load_64): Likewise.
        (cortex_a53_f_load_many): Likewise.
        (cortex_a53_advsimd_alu): Likewise.
        (cortex_a53_advsimd_alu_q): Likewise.
        (cortex_a53_advsimd_mul): Likewise.
        (cortex_a53_advsimd_mul_q): Likewise.
        (fpmac bypass): Add new bypass for fpmac-fpmac case.
        Add missing fmul, r2f_cvt and fconst cases.

2017-06-14  Richard Biener  <rguenther@suse.de>

        PR middle-end/81088
        * fold-const.c (split_tree): Drop TREE_OVERFLOW flag from
        literal constants.
        (fold_binary_loc): When associating do not treat pre-existing
        TREE_OVERFLOW on literal constants as a reason to allow
        TREE_OVERFLOW on associated literal constants.

2017-06-14  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.h (MASK_ISA): Add MASK_LEON and MASK_LEON3.
        (MASK_FEATURES): New macro.
        * config/sparc/sparc.c (sparc_option_override): Remove the special
        handling of -mfpu and generalize it to all MASK_FEATURES switches.

2017-06-14  Eric Botcazou  <ebotcazou@adacore.com>

        * simplify-rtx.c (simplify_binary_operation_1) <UDIV>: Do not simplify
        a division of 0 if non-call exceptions are enabled.

2017-06-14  Andrew Pinski  <apinski@cavium.com>
            Naveen H.S  <Naveen.Hurugalawadi@cavium.com>

        PR target/71663
        * config/aarch64/aarch64.c (aarch64_expand_vector_init):
        Improve vector initialization code gen for only variable case.

2017-06-14  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/driver-sparc.c (cpu_names): Add SPARC-T5 entry.

2017-06-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81083
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Do not use abnormals
        as values.

2017-06-13  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c: Update all comments that mentioned SPE.
        (rs6000_expand_builtin): Remove RS6000_BTC_EVSEL.
        * config/rs6000/rs6000.h (RS6000_BTC_EVSEL): Delete.
        * config/rs6000/vxworks.h (VXCPU_FOR_8548): Delete.  Adjust former use.
        * config/rs6000/vxworksae.h (VXCPU_FOR_8548): Delete.
        * config/rs6000/vxworksmils.h (VXCPU_FOR_8548): Delete.

2017-06-13  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000-opts.h (enum rs6000_vector): Delete VECTOR_SPE.
        * config/rs6000/rs6000.c (rs6000_debug_vector_unit): Delete VECTOR_SPE.

2017-06-13  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.h (FIXED_SCRATCH): Delete.

2017-06-13  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/t-rtems: Don't handle SPE.

2017-06-13  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/t-linux: Don't handle SPE.

2017-06-13  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/eabispe.h: Delete file.

2017-06-13  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/t-spe: Delete file.

2017-06-13  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (SPE_CONST_OFFSET_OK): Delete.
        (rs6000_legitimate_offset_address_p): Return false for anything in
        V2SImode or V2SFmode.

2017-06-13  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000-modes.def: Remove all 8-byte vector modes
        except V2SF and V2SI.  Rearrange the vector modes, and add comments.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Remove V8QImode
        and V4HImode.
        (reg_offset_addressing_ok_p): Remove V4HImode and V1DImode.
        (rs6000_legitimate_offset_address_p): Ditto.
        (rs6000_emit_move): Ditto.
        (rs6000_init_builtins): Remove V4HI_type_node.

2017-06-13  Martin Liska  <mliska@suse.cz>

        PR sanitize/78204
        * asan.c (asan_sanitize_stack_p): Use sanitize_flags_p.
        (gate_asan): Likewise.
        * asan.h (asan_no_sanitize_address_p): Remove the function.
        (sanitize_flags_p): New function.
        * builtins.def: Fix coding style.
        * common.opt: Use renamed enum value.
        * convert.c (convert_to_integer_1): Use sanitize_flags_p.
        * doc/extend.texi: Document no_sanitize attribute.
        * flag-types.h (enum sanitize_code): Rename SANITIZE_NONDEFAULT
        to SANITIZE_UNDEFINED_NONDEFAULT.
        * gcc.c (sanitize_spec_function): Use the renamed enum value.
        * gimple-fold.c (optimize_atomic_compare_exchange_p):
        Use sanitize_flags_p.
        * gimplify.c (gimplify_function_tree): Likewise.
        * ipa-inline.c (sanitize_attrs_match_for_inline_p): Likewise.
        * opts.c (parse_no_sanitize_attribute): New function.
        (common_handle_option): Use renamed enum value.
        * opts.h (parse_no_sanitize_attribute): Declare.
        * tree.c (sanitize_flags_p): New function.
        * tree.h: Declared here.
        * tsan.c: Use sanitize_flags_p.
        * ubsan.c (ubsan_expand_null_ifn): Likewise.
        (instrument_mem_ref): Likewise.
        (instrument_bool_enum_load): Likewise.
        (do_ubsan_in_current_function): Remove the function.
        (pass_ubsan::execute): Use sanitize_flags_p.
        * ubsan.h: Remove do_ubsan_in_current_function
        * tree-cfg.c (print_no_sanitize_attr_value): New function.
        (dump_function_to_file): Use it here.

2017-06-13  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/80803
        PR tree-optimization/81063
        * tree-sra.c (subtree_mark_written_and_enqueue): Move up in the file.
        (propagate_subaccesses_across_link): Enqueue subtree whenever
        necessary instead of relying on the caller.

2017-06-13  Martin Jambor  <mjambor@suse.cz>

        * tree-sra.c (add_access_to_work_queue): Only enqueue accesses
        that have a first_link.
        (sort_and_splice_var_accesses): Do not check first_link before
        enquing.
        (subtree_mark_written_and_enqueue): Likewise.
        (propagate_all_subaccesses): Likewise and do not stop at first
        parent with a first_link.

2017-06-13  Martin Jambor  <mjambor@suse.cz>

        * tree-sra.c (dump_access_tree_1): Fix accidental dumping to stderr
        instead of f.

2017-06-13  Yury Gribov  <tetra2005@gmail.com>

        * match.pd: New pattern.

2017-06-13  Yury Gribov  <tetra2005@gmail.com>

        * tree-vrp.c (is_masked_range_test): New function.
        (register_edge_assert_for): Determine ranges for
        some bit tests.

2017-06-13  Yury Gribov  <tetra2005@gmail.com>

        PR tree-optimization/67328
        * fold-const.c (maskable_range_p): New function.
        (build_range_check): Generate bittests if possible.

2017-06-13  Martin Liska  <mliska@suse.cz>

        * gimple-pretty-print.c (dump_probability): Add new argument.
        (dump_edge_probability): Dump both probability and count.
        (dump_gimple_label): Likewise.
        (dump_gimple_bb_header): Likewise.

2017-06-13  Georg-Johann Lay  <avr@gjlay.de>

        PR target/81072
        * config/avr/avr-devices.c: Fix indentation.
        * config/avr/gen-avr-mmcu-specs.c: Dito.

2017-06-13  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_model_reduction_cost): Do not fail,
        instead get vector type from stmt_info.
        (vectorizable_reduction): Adjust.  Remove dead code.

2017-06-13  Richard Biener  <rguenther@suse.de>

        PR middle-end/81065
        * fold-const.c (extract_muldiv_1): Remove bogus distribution
        case of C * (x * C2 + C3).
        (fold_addr_of_array_ref_difference): Properly fold index difference.

2017-06-12  David S. Miller  <davem@davemloft.net>

        PR target/80968
        * config/sparc/sparc.md (return expander): Emit frame blockage if
        function uses alloca.

2017-06-12  Richard Sandiford  <richard.sandiford@linaro.org>

        * combine.c (make_field_assignment): Check len rather than the mode
        precision when calling force_to_mode.

2017-06-12  Georg-Johann Lay  <avr@gjlay.de>

        Support multilibs and devices that see flash in RAM address range.

        PR target/81072
        * config/avr/avr-arch.h (avr_arch_id) <ARCH_AVRXMEGA3>: New enum.
        (avr_mcu_t) <flash_pm_offset>: New field.
        (avr_device_specific_features) <AVR_ISA_RCALL>: New enum.
        * config/avr/avr.h (AVR_SHORT_CALLS): New define.
        (AVR_HAVE_JMP_CALL): Don't set if AVR_SHORT_CALLS.
        (AVR_TINY_PM_OFFSET): Remove macro.
        * config/avr/avr.opt (-mshort-calls): New option.
        * config/avr/gen-avr-mmcu-specs.c (print_mcu)
        [*self_spec]: Add / remove -mshort-calls depending on AVR_ISA_RCALL.
        * config/avr/avr-c.c (avr_cpu_cpp_builtins)
        <__AVR_SHORT_CALLS__>: Built-in define if AVR_SHORT_CALLS.
        <__AVR_HAVE_JMP_CALL__>: Use AVR_HAVE_JMP_CALL as condition
        instead of avr_arch->have_jmp_call.
        <__AVR_PM_BASE_ADDRESS__>: Built-in define if avr_arch->flash_pm_offset.
        [AVR_TINY] <__AVR_TINY_PM_BASE_ADDRESS__>: Use
        avr_arch->flash_pm_offset to define.
        * config/avr/avr-devices.c (avr_arch_types): Add initializers for
        new field flash_pm_offset.  Add entry for avrxmega3.
        (avr_texinfo): Add entry for avrxmega3.
        * config/avr/avr-mcus.def: Add entries for: avrxmega3,
        attiny212, attiny214,
        attiny412, attiny414, attiny416, attiny417,
        attiny814, attiny816, attiny817,
        attiny1614, attiny1616, attiny1617,
        attiny3214, attiny3216, attiny3217.
        * config/avr/avr.c (avr_assemble_integer)[AVR_TINY]: Use
        avr_arch->flash_pm_offset instead of AVR_TINY_PM_OFFSET.
        (avr_print_operand_address) [AVR_TINY]: Same.
        (avr_asm_init_sections) <readonly_data_section>: Only patch
        callback if avr_arch->flash_pm_offset = 0.
        (avr_asm_named_section) <avr_need_copy_data_p>: Skip setting it
        for rodata if avr_arch->flash_pm_offset != 0.
        (avr_encode_section_info) [AVR_TINY]: Adjust comment.
        * config/avr/genmultilib.awk (dir_rcall, opt_rcall): New vars.
        (opts) [AVR_ISA_RCALL]: Append opt_rcall.
        (m_options): Append opt_rcall.
        (m_dirnames): Append dir_rcall.
        * config/avr/t-multilib: Regenerate.

        * configure.ac [target=avr]: Check whether avrxmega3 default
        linker description file works as needed.
        * configure: Regenerate.
        * doc/avr-mmcu.texi: Regenerate.
        * doc/invoke.texi (AVR Options) <-mshort-calls>: Document it.
        <__AVR_ARCH__>: Document avrxmega3 and 103.
        <__AVR_HAVE_JMP_CALL__>: Adjust documentation.
        <__AVR_SHORT_CALLS__>: Document it.
        <__AVR_PM_BASE_ADDRESS__>: Document it.
        * doc/extend.texi (AVR Options) <-mshort-calls>: Document it.
        (AVR Variable Attributes) <progmem>: Document this is
        not needed for avrxmega3.
        (AVR Named Address Spaces) <__flash>: Dito.

2017-06-12  Jan Hubicka  <hubicka@ucw.cz>

        * cgraph.c (cgraph_node::dump): Complain about profile insanities.

2017-06-12  Doug Rupp  <rupp@adacore.com>

        * config.gcc (*-*-vxworks*): Set use_gcc_stdint to "provide".
        Append vxworks-stdint.h to the tm_file list.
        * config/vxworks-stdint.h: New file.

2017-06-12  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/81041
        * tree-profile.c (gimple_gen_ic_func_profiler):
        Create an extra BB in profile-generate
        (gimple_gen_time_profiler): Likewise.

2017-06-12  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/81003
        * tree-ssa-reassoc.c (force_into_ssa_name): New function.
        (update_range_test): Use it instead of force_gimple_operand_gsi.

2017-06-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/81053
        * tree-vect-loop.c (vect_is_simple_reduction): Handle PHI
        with backedge value not defined in loop.  Simplify def stmt
        compute.

2017-06-11  Tom de Vries  <tom@codesourcery.com>

        PR target/79939
        * config/nvptx/nvptx.c (nvptx_cannot_force_const_mem): New function.
        Return true.
        (TARGET_CANNOT_FORCE_CONST_MEM): Redefine to
        nvptx_cannot_force_const_mem.

2017-06-10  Jan Hubicka  <hubicka@ucw.cz>

        * opts.c (finish_options): Move test for flag_split_stack after
        it has been initialized.

2017-06-11  Jason Merrill  <jason@redhat.com>

        * tree.h (id_equal): New.
        * dwarf2out.c, hsa-gen.c, ipa-devirt.c, omp-expand.c,
        omp-simd-clone.c, read-rtl-function.c, tree-chkp.c, tree.c: Use it
        instead of strcmp of IDENTIFIER_POINTER.

2017-06-10  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline-transform.c: Include function.h, cfg.h and basic-block.h
        (mark_all_inlined_calls_cdtor): Fix formating.
        (inline_transform): Rescale profile before inlining.

2017-06-10  Jan Hubicka  <hubicka@ucw.cz>

        * cgraph.h (cgraph_edge::clone): Update prototype.
        * cgraphclones.c (cgraph_edge::clone): Update profile scaling.
        (cgraph_node::create_clone): Update.
        (cgraph_node::create_version_clone): Update.
        * tree-inline.c (copy_bb): Update.
        (expand_call_inline): Update.

2017-06-10  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (emit_vrsave_prologue): New function,
        factored out from ...
        (rs6000_emit_prologue): ... here.

2017-06-10  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (emit_split_stack_prologue): New function,
        factored out from ...
        (rs6000_emit_prologue): ... here.

2017-06-10  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (drop_profile): Also drop individual bb/edge and cgraph
        edge counts.
        (handle_missing_profiles): Fix computation of tp_first_run.
        (counts_to_freqs): Do not touch freqs when count is 0.

2017-06-10  Jan Hubicka  <hubicka@ucw.cz>

        * cgraphbuild.c (cgraph_edge::rebuild_references): Do not touch
        profile.

2017-06-10  Tom de Vries  <tom@codesourcery.com>

        * doc/sourcebuild.texi (Effective-Target Keywords, Environment
        attributes): Document signal effective target.

2017-06-10  Tom de Vries  <tom@codesourcery.com>

        * doc/sourcebuild.texi (Effective-Target Keywords, Other attributes):
        Document effective target stack_size.

2017-06-09  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic.c (diagnostic_report_diagnostic): Only add fixits
        to the edit_context if they can be auto-applied.

2017-06-9  Ian Lance Taylor  <iant@golang.org>

        * opts.c (finish_options): If -fsplit-stack, disable implicit
        -forder-blocks-and-partition.
        * doc/invoke.texi (Optimize Options): Document that when using
        -fsplit-stack -forder-blocks-and-partition is not implicitly
        enabled.

2017-06-09  Jan Hubicka  <hubicka@ucw.cz>

        * builtin-attrs.def (ATTR_NORETURN_NOTHROW_LEAF_COLD_LIST,
        ATTR_CONST_NORETURN_NOTHROW_LEAF_COLD_LIST,
        ATTR_TMPURE_NORETURN_NOTHROW_LEAF_COLD_LIST): New.
        * builtins.def (abort, trap, unreachable): Declare cold.
        * calls.c (flags_from_decl_or_type): Lookup ECF_COLD.
        * tree-core.h (ECF_COLD): New.
        * tree.c (set_call_expr_flags): Handle ECF_COLD.
        (build_common_builtin_nodes): Mark unreachable and abort as cold.

2017-06-09  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (unlikely_executed_stmt_p): Cleanup.

2017-06-09  Richard Biener  <rguenther@suse.de>

        * tree-ssa-loop-im.c (execute_sm): Do not force multi-threaded
        model if the ref is always written to.

2017-06-09  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64.md (lrint<GPF:mode><GPI:mode>2): New.

2017-06-09  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm.c (arm_rtx_costs_internal): Make sdiv more expensive
        than udiv.

2017-06-09  Tom de Vries  <tom@codesourcery.com>

        PR target/80855
        * config/nvptx/nvptx.md (define_expand "mov<QHSDISDFM>"): Error out with
        "target cannot support label values" when encountering LABEL_REF.

2017-06-09  Martin Liska  <mliska@suse.cz>

        * tree-profile.c (gimple_gen_ic_profiler): Update comment.
        (gimple_gen_ic_func_profiler): Emit direct comparison
        of __gcov_indirect_call_callee with NULL.
        (gimple_gen_time_profiler): Change probability from
        PROB_VERY_UNLIKELY to PROB_UNLIKELY.

2017-06-09  Jan Hubicka  <hubicka@ucw.cz>

        * profile.c (edge_gcov_counts): Turn to pointer.
        (compute_branch_probabilities, compute_branch_probabilities): Update.
        (branch_prob): Do not clear edge_gcov_count.
        * profile.h (edge_gcov_counts): Turn to pointer.
        (edge_gcov_count): Update.

2017-06-09  Jan Hubicka  <hubicka@ucw.cz>

        * gimple.h (gimple_check_failed): Mark cold.

2017-06-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/66623
        * tree-vect-loop.c (vect_is_simple_reduction): Cleanup,
        refactor check_reduction into two parts, properly computing
        whether we have to check reduction validity for outer loop
        vectorization.

2017-06-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79483
        * graphite-scop-detection.c (order): New global.
        (get_order): Compute bb to order mapping that satisfies code
        generation constraints.
        (cmp_pbbs): New helper.
        (build_scops): Start domwalk at entry block, sort generated
        pbbs.

2017-06-09  Richard Biener  <rguenther@suse.de>

        PR middle-end/81007
        * ipa-polymorphic-call.c
        (ipa_polymorphic_call_context::restrict_to_inner_class):
        Skip FIELD_DECLs with error_mark_node type.
        * passes.def (all_lowering_passes): Run pass_build_cgraph_edges
        last again.

2017-06-09  Martin Liska  <mliska@suse.cz>

        * predict.c (struct branch_predictor): New struct.
        (test_prediction_value_range): New test.
        (predict_c_tests): New function.
        * selftest-run-tests.c (selftest::run_tests): Run the function.
        * selftest.h: Declare new tests.

2017-06-09  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/80966
        * config/rs6000/rs6000.c (rs6000_emit_allocate_stack): Assert that
        gen_add3_insn did not fail.
        * config/rs6000/rs6000.md (add<mode>3): If asked to add a constant to
        r0, construct that number in a temporary reg and add that reg to r0.
        If asked to put the result in r0 as well, fail.

2017-06-08  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add handling
        for early expansion of vec_eqv.

2017-06-08  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/81005
        * ubsan.c (instrument_null): Avoid pointless code temporary.
        (pass_ubsan::execute): Instrument aggregate arguments of calls.

2017-06-08  Uros Bizjak  <ubizjak@gmail.com>

        PR target/81015
        Revert:
        2016-12-14  Uros Bizjak  <ubizjak@gmail.com>

        PR target/59874
        * config/i386/i386.md (*ctzhi2): New insn_and_split pattern.
        (*clzhi2): Ditto.

2017-06-08  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (unlikely_executed_edge_p): Move ahead.
        (probably_never_executed_edge_p): Use it.

2017-06-08  Alexander Ivchenko  <alexander.ivchenko@intel.com>

        PR middle-end/79988
        * tree-chkp.c (chkp_gimple_call_builtin_p): Remove
        gimple_call_builtin_p call.

2017-06-08  Jan Hubicka  <hubicka@ucw.cz>

        * system.h (fancy_abort): Annotate by ATTRIBUTE_COLD.
        * rtl.h (rtl_check_failed_bounds, rtl_check_failed_type1,
        rtl_check_failed_type2, rtl_check_failed_code1,
        rtl_check_failed_code2, rtl_check_failed_code_mode,
        rtl_check_failed_block_symbol, cwi_check_failed_bounds,
        rtvec_check_failed_bounds, rtl_check_failed_flag,
        _fatal_insn_not_found, _fatal_insn): Likewise.
        * tree.h (tree_contains_struct_check_failed,
        tree_check_failed, tree_not_check_failed,
        tree_class_check_failed, tree_range_check_failed,
        tree_not_class_check_failed, tree_int_cst_elt_check_failed,
        tree_vec_elt_check_failed, phi_node_elt_check_failed,
        tree_operand_check_failed, omp_clause_check_failed,
        omp_clause_operand_check_failed, omp_clause_range_check_failed):
        Likewise.

2017-06-08  Jan Hubicka  <hubicka@ucw.cz>

        * cgraph.c (cgraph_edge::maybe_hot_p): Do not check
        flag_branch_probabilities.
        * ipa-inline.c (edge_badness): Likewise.
        * ipa-profile.c (ipa_propagate_frequency_1): Likewise.
        * postreload-gcse.c (eliminate_partially_redundant_load): Likewise.
        * predict.c (maybe_hot_frequency_p): Likewise.
        (probably_never_executed): Likewise.
        * sched-ebb.c (schedule_ebbs): Likewise.
        * sched-rgn.c (find_single_block_region): Likewise.
        * tracer.c (tail_duplicate): Likewise.

2017-06-08  Jan Hubicka  <hubicka@ucw.cz>

        * opts.c (finish_options): x_flag_reorder_blocks_and_partition no
        longer requires x_flag_profile_use.

2017-06-08  Jan Hubicka  <hubicka@ucw.cz>

        * cfgrtl.c (cfg_layout_initialize): Check crtl->has_bb_partition
        instead of flag_reorder_blocks_and_partition.
        * dbxout.c (dbxout_function_end): Likewise.
        * dwarf2out.c (gen_subprogram_die): Likewise.
        * haifa-sched.c (sched_create_recovery_edges): Likewise.
        * hw-doloop.c (reorg_loops): Likewise.
        * varasm.c (assemble_start_function,
        assemble_end_function): Likewise.
        (decide_function_section): Do not check for
        flag_reorder_blocks_and_partition.

2017-06-08  Alexander Ivchenko  <alexander.ivchenko@intel.com>

        * tree-chkp.c (chkp_get_hard_register_var_fake_base_address):
        New function.
        (chkp_get_hard_register_fake_addr_expr): Ditto.
        (chkp_build_addr_expr): Add check for hard reg case.
        (chkp_parse_array_and_component_ref): Ditto.
        (chkp_find_bounds_1): Ditto.
        (chkp_process_stmt): Don't generate bounds store for
        hard reg case.

2017-06-08  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (maybe_hot_bb_p): Do not check profile status.
        (maybe_hot_edge_p): Likewise.
        (probably_never_executed): Check for zero counts even if profile
        is not read.
        (unlikely_executed_edge_p): New function.
        (unlikely_executed_stmt_p): New function.
        (unlikely_executed_bb_p): New function.
        (set_even_probabilities): Use unlikely predicates.
        (combine_predictions_for_bb): Likewise.
        (predict_paths_for_bb): Likewise.
        (predict_paths_leading_to_edge): Likewise.
        (determine_unlikely_bbs): New function.
        (estimate_bb_frequencies): Use it.
        (compute_function_frequency): Use zero counts even if profile is
        not read.
        * profile-count.h: Fix typo.

2017-08-08  Julia Koval  <julia.koval@intel.com>

        * config/i386/avx512bwintrin.h (_mm512_mask_cvtepi16_storeu_epi8,
        _mm512_mask_cvtsepi16_storeu_epi8,
        _mm512_mask_cvtusepi16_storeu_epi8): New intrinsics.
        * config/i386/avx512vlbwintrin.h (_mm256_mask_cvtepi16_storeu_epi8,
        _mm_mask_cvtsepi16_storeu_epi8, _mm256_mask_cvtsepi16_storeu_epi8,
        _mm_mask_cvtusepi16_storeu_epi8, _mm256_mask_cvtusepi16_storeu_epi8,
        _mm_mask_cvtepi16_storeu_epi8): New intrinsics.
        * config/i386/i386-builtin-types.def (PV8Q, V8QI): New pointer type.
        (VOID_FTYPE_PV32QI_V32HI_USI, VOID_FTYPE_PV8QI_V8HI_UQI,
        VOID_FTYPE_PV16QI_V16HI_UHI): New function types.
        * config/i386/i386-builtin.def (__builtin_ia32_pmovwb128mem_mask,
        __builtin_ia32_pmovwb256mem_mask, __builtin_ia32_pmovswb128mem_mask,
        __builtin_ia32_pmovswb256mem_mask, __builtin_ia32_pmovuswb128mem_mask,
        __builtin_ia32_pmovuswb256mem_mask,
        __builtin_ia32_pmovuswb512mem_mask, __builtin_ia32_pmovswb512mem_mask)
        __builtin_ia32_pmovwb512mem_mask): New builtins.

2017-08-08  Julia Koval  <julia.koval@intel.com>

        PR target/73350,80862
        * config/i386/subst.md (round): Fix round pattern.
        * config/i386/i386.c (ix86_erase_embedded_rounding):
        Fix erasing rounding for the fixed pattern.

2017-06-08  Jan Hubicka  <hubicka@ucw.cz>

        * cfgbuild.c (find_many_sub_basic_blocks): Fix thinko.

2017-06-08  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/80911
        * gcov.c (block_info::block_info): New constructor.

2017-06-07  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c: The return type of the following
        built-in functions was implemented as int not long long.  Fix sign
        of return value for the unsigned version of vec_mulo and vec_mule.
        vector unsigned long long vec_bperm (vector unsigned long long,
                                             vector unsigned char)
        vector signed long long vec_mule (vector signed int,
                                          vector signed int)
        vector unsigned long long vec_mule (vector unsigned int,
                                            vector unsigned int)
        vector signed long long vec_mulo (vector signed int,
                                          vector signed int)
        vector unsigned long long vec_mulo (vector unsigned int,
                                            vector unsigned int)
        * doc/extend.texi: Fix the documentation for the built-in
        functions.

2017-06-07  Carl Love  <cel@us.ibm.com>

        PR target/80982
        * config/rs6000/altivec.md (double<mode>2): Fix the implementation of
        for BE.

2017-06-07  Carl Love  <cel@us.ibm.com>

        * config/rs6000/altivec.md: Fix argument swizzle in vec_doublel
        support, Generate       doublehv for signed int/float for BE case only.

2017-06-07  Alexander Monakov  <amonakov@ispras.ru>

        * doc/invoke.texi (mcx16): Rewrite.

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/predicates.md (rs6000_nonimmediate_operand): Delete.
        * config/rs6000/rs6000.md (*movsi_internal1, movsi_from_sf,
        *mov<mode>_softfloat, and an anonymous splitter): Use
        nonimmediate_operand instead of rs6000_nonimmediate_operand.

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/darwin.h (REGISTER_NAMES): Delete the SPE_ACC and
        SPEFSCR registers.
        * config/rs6000/rs6000.c (rs6000_reg_names, alt_reg_names): Ditto.
        (enum rs6000_reg_type): Delete SPE_ACC_TYPE and SPEFSCR_REG_TYPE.
        (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        (rs6000_dbx_register_number): Adjust.
        * config/rs6000/rs6000.h (FIRST_PSEUDO_REGISTER): Change to 115.
        (FIXED_REGISTERS, CALL_USED_REGISTERS, CALL_REALLY_USED_REGISTERS):
        Remove SPE_ACC and SPEFSCR.
        (REG_ALLOC_ORDER): Ditto.
        (FRAME_POINTER_REGNUM): Change to 111.
        (enum reg_class): Remove the SPE_ACC and SPEFSCR registers.
        (REG_CLASS_NAMES): Ditto.
        (REG_CLASS_CONTENTS): Delete the SPE_ACC and SPEFSCR registers.
        (REGISTER_NAMES): Ditto.
        (ADDITIONAL_REG_NAMES): Ditto.
        (rs6000_reg_names): Ditto.
        * config/rs6000/rs6000.md: Renumber some register number
        define_constants.

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/darwin.h (REGISTER_NAMES): Delete the SPE high
        registers.
        * config/rs6000/rs6000.c (rs6000_reg_names, alt_reg_names): Ditto.
        * config/rs6000/rs6000.h (FIRST_PSEUDO_REGISTER): Change from 149
        to 117.
        (DWARF_REG_TO_UNWIND_COLUMN): Do not define.
        (FIXED_REGISTERS, CALL_USED_REGISTERS, CALL_REALLY_USED_REGISTERS):
        Delete the SPE high registers.
        (REG_ALLOC_ORDER): Ditto.
        (enum reg_class): Remove SPE_HIGH_REGS.
        (REG_CLASS_NAMES): Ditto.
        (REG_CLASS_CONTENTS): Delete the SPE high registers.
        (REGISTER_NAMES): Ditto.
        (rs6000_reg_names): Ditto.
        * doc/tm.texi.in: Remove SPE as example.
        * doc/tm.texi: Regenerate.

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/8540.md (ppc8540_brinc): Delete.
        * config/rs6000/e500mc.md (e500mc_brinc): Delete.
        * config/rs6000/e500mc64.md (e500mc64_brinc): Delete.
        * config/rs6000/rs6000.md (type): Remove "brinc".

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config.gcc (powerpc*-*-*): Don't add spe.h to extra_headers.
        (powerpc*-linux*spe*): Use ${cpu_type} instead of rs6000.
        * config/rs6000/linuxspe.h: Delete file.
        * config/rs6000/rs6000.md: Don't include spe.md.
        * config/rs6000/spe.h: Delete file.
        * config/rs6000/spe.md: Delete file.
        * config/rs6000/t-rs6000: Remove spe.md.

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/predicates.md (reg_or_mem_operand): Reformat.
        (reg_or_none500mem_operand): Delete.
        * config/rs6000/rs6000.md (extendsfdf2): Use reg_or_mem_operand
        instead of reg_or_none500mem_operand.

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_option_override_internal): Delete
        handling of SPE flags.
        * config/rs6000/rs6000.opt (-mspe, -mspe=no, -mspe=yes): Delete.

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000-common.c (rs6000_handle_option): Remove
        SPE ABI handling.
        * config/rs6000/paired.md (paired_negv2sf2): Rename to negv2sf2.
        (paired_absv2sf2, paired_addv2sf3, paired_subv2sf3, paired_mulv2sf3,
        paired_divv2sf3): Similar.
        * config/rs6000/predicates.md: Replace TARGET_SPE, TARGET_SPE_ABI,
        SPE_VECTOR_MODE and SPE_HIGH_REGNO_P by 0; simplify.
        * config/rs6000/rs6000-builtin.def: Delete RS6000_BUILTIN_E and
        RS6000_BUILTIN_S.
        Delete BU_SPE_1, BU_SPE_2, BU_SPE_3, BU_SPE_E, BU_SPE_P, and BU_SPE_X.
        Rename the paired_* instruction patterns.
        * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Do not
        define __SPE__.
        * config/rs6000/rs6000-protos.h (invalid_e500_subreg): Delete.
        * config/rs6000/rs6000.c: Delete RS6000_BUILTIN_E and RS6000_BUILTIN_S.
        (struct rs6000_stack): Delete fields spe_gp_save_offset, spe_gp_size,
        spe_padding_size, and spe_64bit_regs_used.  Replace TARGET_SPE and
        TARGET_SPE_ABI with 0, simplify.  Replace SPE_VECTOR_MODE with
        PAIRED_VECTOR_MODE.
        (struct machine_function): Delete field spe_insn_chain_scanned_p.
        (spe_func_has_64bit_regs_p): Delete.
        (spe_expand_predicate_builtin): Delete.
        (spe_expand_evsel_builtin): Delete.
        (TARGET_DWARF_REGISTER_SPAN): Do not define.
        (TARGET_MEMBER_TYPE_FORCES_BLK): Do not define.
        (invalid_e500_subreg): Delete.
        (rs6000_legitimize_address): Always force_reg op2 as well, for
        paired single memory accesses.
        (rs6000_member_type_forces_blk): Delete.
        (rs6000_spe_function_arg): Delete.
        (rs6000_expand_unop_builtin): Delete SPE handling.
        (rs6000_expand_binop_builtin): Ditto.
        (spe_expand_stv_builtin): Delete.
        (bdesc_2arg_spe): Delete.
        (spe_expand_builtin): Delete.
        (spe_expand_predicate_builtin): Delete.
        (spe_expand_evsel_builtin): Delete.
        (rs6000_invalid_builtin): Remove RS6000_BTM_SPE handling.
        (spe_init_builtins): Delete.
        (spe_func_has_64bit_regs_p): Delete.
        (savres_routine_name): Delete "info" parameter.  Adjust callers.
        (rs6000_emit_stack_reset): Ditto.
        (rs6000_dwarf_register_span): Delete.
        * config/rs6000/rs6000.h (TARGET_SPE_ABI, TARGET_SPE,
        UNITS_PER_SPE_WORD, SPE_HIGH_REGNO_P, SPE_SIMD_REGNO_P,
        SPE_VECTOR_MODE, RS6000_BTM_SPE, RS6000_BUILTIN_E, RS6000_BUILTIN_S):
        Delete.
        * config/rs6000/rs6000.md (FIRST_SPE_HIGH_REGNO, LAST_SPE_HIGH_REGNO):
        Delete.
        * config/rs6000/rs6000.opt (-mabi=spe, -mabi=no-spe): Delete.
        * config/rs6000/spe.md: Delete every pattern that uses TARGET_SPE.
        * config/rs6000/vector.md (absv2sf2, negv2sf2, addv2sf3, subv2sf3,
        mulv2sf3, divv2sf3): Delete expanders.

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        config/rs6000/rs6000.md (UNSPEC_MV_CR_GT): Delete.

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000-protos.h (output_e500_flip_gt_bit): Delete.
        * config/rs6000/rs6000.c: Ditto.

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/predicated.md (rs6000_cbranch_operator): Delete.
        * config/rs6000/rs6000.md: Replace rs6000_cbranch_operator by
        comparison_operator.

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c: Remove everything related to -mfloat-gprs.
        * config/rs6000/rs6000.opt: Ditto.
        * config/rs6000/t-rtems: Ditto.

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/predicates.md: Replace TARGET_E500_DOUBLE and
        TARGET_E500_SINGLE by 0, simplify.
        * config/rs6000/rs6000.c: Ditto.
        (rs6000_option_override_internal): Delete CHECK_E500_OPTIONS.
        (spe_build_register_parallel): Delete.
        * config/rs6000/rs6000.h: Delete TARGET_E500_SINGLE,
        TARGET_E500_DOUBLE, and CHECK_E500_OPTIONS.
        * config/rs6000/rs6000.md: Replace TARGET_E500_DOUBLE,
        TARGET_E500_SINGLE, and <E500_CONVERT> by 0, simplify.
        (E500_CONVERT): Delete.
        * config/rs6000/spe.md: Remove many patterns and all define_constants.

2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/darwin.md: Replace TARGET_FPRS by 1 and simplify.
        * config/rs6000/dfp.md: Ditto.
        (negdd2, *negdd2_fpr): Merge.
        (absdd2, *absdd2_fpr): Merge.
        (negtd2, *negtd2_fpr): Merge.
        (abstd2, *abstd2_fpr): Merge.
        * config/rs6000/e500.h: Delete file.
        * config/rs6000/predicates.md (rs6000_cbranch_operator): Replace
        TARGET_FPRS by 1 and simplify.
        * config/rs6000/rs6000-c.c: Ditto.
        * config/rs6000/rs6000.c: Ditto.  Also replace TARGET_SF_SPE and
        TARGET_DF_SPE by 0.
        * config/rs6000/rs6000.h: Ditto.  Delete TARGET_SF_SPE and
        TARGET_DF_SPE.
        * config/rs6000/rs6000.md: Ditto.
        (floatdidf2, *floatdidf2_fpr): Merge.
        (move_from_CR_gt_bit): Delete.
        * config/rs6000/spe.md: Replace TARGET_FPRS by 1 and simplify.
        (E500_CR_IOR_COMPARE): Delete.
        (All patterns that require !TARGET_FPRS): Delete.
        * config/rs6000/vsx.md: Replace TARGET_FPRS by 1 and simplify.

2017-06-07  Bin Cheng  <bin.cheng@arm.com>

        * passes.def (pass_iv_canon): Move before pass_loop_distribution.

2017-06-07  Bin Cheng  <bin.cheng@arm.com>

        * graphds.c (add_edge): Intitialize edge's attached data.
        (foll_in_subgraph, dfs_fst_edge, dfs_next_edge): New function
        pointer parameter.  Call pointed function on each edge during
        graph traversing.  Skip traversing the edge when the function
        returns true.
        (graphds_dfs, graphds_scc): Ditto.
        (for_each_edge): New parameter.  Pass the new parameter to callback
        function.
        * graphds.h (skip_edge_callback): New function pointer type.
        (graphds_dfs, graphds_scc): New function pointer parameter.
        (graphds_edge_callback, for_each_edge): New parameter.

2017-06-07  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-data-refs.c (vect_mark_for_runtime_alias_test): Factor
        out code checking if runtime alias check is possible to below ...
        Call the new function.
        * tree-data-ref.c (runtime_alias_check_p): ... to new function.
        * tree-data-ref.h (runtime_alias_check_p): New decalaration.

2017-06-07  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/80932
        * fold-const.c (extract_muldiv_1) <case MINUS_EXPR>: Add
        TYPE_OVERFLOW_WRAPS check.

2017-06-07  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop-manip.c (vect_do_peeling): Don't skip vector loop
        if versioning is required.
        * tree-vect-loop.c (vect_analyze_loop_2): Merge niter check for loop
        peeling with the check for versioning.

2017-06-07  Bin Cheng  <bin.cheng@arm.com>

        * tree-vectorizer.h (vect_build_loop_niters): New parameter.
        * tree-vect-loop-manip.c (vect_build_loop_niters): New parameter.
        Set true to new parameter if new ssa variable is defined.
        (vect_gen_vector_loop_niters): Refactor.  Set range information
        for the new vector loop bound variable.
        (vect_do_peeling): Ditto.

2017-06-07  Bin Cheng  <bin.cheng@arm.com>

        * tree-affine.c (ssa.h): Include header file.
        (tree_to_aff_combination): Handle (T1)(X - CST) when inner type
        has wrapping overflow behavior.

2017-06-07  Bin Cheng  <bin.cheng@arm.com>

        * tree-affine.c (tree_to_aff_combination): Handle (T1)(X + X).

2017-06-07  Bin Cheng  <bin.cheng@arm.com>

        (aff_combination_expand): Move (T1)(X *+- CST) simplification to ...
        (tree_to_aff_combination): ... here.

2017-06-07  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (ivopts_estimate_reg_pressure): New
        reg_pressure model function.
        (ivopts_global_cost_for_size): Delete.
        (determine_set_costs, iv_ca_recount_cost): Call new model function
        ivopts_estimate_reg_pressure.

2017-06-07  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64.c (aarch64_rtx_costs): Make sdiv more
        expensive than udiv.  Remove floating point cases from mod.

2017-06-07  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/aarch-cost-tables.h (cortexa53_extra_cost):
        Increase idiv cost.

2017-06-07  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64.md
        (copysignsf3): Fix mask generation.

2017-06-07  Jakub Jelinek  <jakub@redhat.com>

        * dumpfile.h (enum tree_dump_index): Rename TDI_generic to
        TDI_gimple.
        (class dump_manager): Add register_dumps method.
        * dumpfile.c: Include langhooks.h.
        (dump_files): Use 0 instead of 3/4/5 for TDI_{original,gimple,nested}.
        (FIRST_AUTO_NUMBERED_DUMP): Decrease to 1.
        (FIRST_ME_AUTO_NUMBERED_DUMP): Define.
        (dump_manager::dump_register): Start with 512 entries instead of 32.
        (dump_manager::register_dumps): New method.
        * toplev.c (general_init): Instead of invoking register_dumps
        langhook, invoke register_dumps method on the dump manager.
        * gimplify.c (gimplify_function_tree): Use TDI_gimple instead of
        TDI_generic.

2017-06-07  Richard Sandiford  <richard.sandiford@linaro.org>

        * doc/md.texi: Clarify the restrictions on a define_insn condition.
        Say that # requires an associated define_split to exist, and that
        the define_split must be suitable for use after register allocation.

2017-06-06  Jan Hubicka  <hubicka@ucw.cz>

        * cfgbuild.c (find_bb_boundaries): Initialize profile of split blocks.
        (compute_outgoing_frequencies): Also initialize zero counts.
        (find_many_sub_basic_blocks): Do not produce uninitialized profile
        around loops; preserve more of profile when nothing changes.

2017-06-06  Jim Wilson  <jim.wilson@linaro.org>

        * config/aarch64/aarch64-cost-tables.h (qdf24xx_extra_costs): Move to
        here.
        * config/arm/aarch-cost-tables.h (qdf24xx_extra_costs): From here.
        * config/arm/arm-cpu-cdata.h: Regenerate.
        * config/arm/arm-cpu-data.h, config/arm/arm-cpu.h: Likewise.
        * config/arm/arm-tables.opt, config/arm/arm-tune.md: Likewise.
        * config/arm/arm-cpus.in: Delete falkor and qdf24xx entries.
        * config/arm/arm.c (arm_qdf24xx_tune): Delete.
        * config/arm/bpabi.h (BE8_LINK_SPEC): Delete falkor and qdf24xx
        support.
        * config/arm/t-aprofile (MULTILIB_MATCHES): Delete falkor and qdf24xx
        support.
        * config/arm/t-rmprofile: Likewise.
        * doc/invoke.texi (ARM Options): Drop falkor and qdf24xx support.

2017-06-06  David S. Miller  <davem@davemloft.net>

        PR target/80968
        * config/sparc/sparc.c (sparc_expand_prologue): Emit frame
        blockage if function uses alloca.

2017-06-06  Maxim Kuvyrkov  <maxim.kuvyrkov@linaro.org>

        * tree-ssa-loop-prefetch.c (struct mem_ref_group, struct mem_ref):
        New "uid" fields to hold pretty-print IDs of group and ref.
        Memory references are now identified as <group_id>:<ref_id>
        instead of using [random] addresses.
        (dump_mem_details): Simplify, no functional change.
        (dump_mem_ref): Simplify and make output more concise.
        Replace couple of fprintf's throughout code with calls to dump_mem_ref.
        (find_or_create_group): Initialize group uid.
        (record_ref): Initialize ref uid.  Improve debug output.
        (prune_group_by_reuse, should_issue_prefetch_p,)
        (should_issue_prefetch_p, schedule_prefetches, issue_prefetch_ref,)
        (mark_nontemporal_store, determine_loop_nest_reuse):
        Improve debug output.

2017-06-06  Maxim Kuvyrkov  <maxim.kuvyrkov@linaro.org>

        * dbgcnt.def (prefetch): New debug counter.
        * tree-ssa-loop-prefetch.c (dbgcnt.h): New include.
        (schedule_prefetches): Stop issueing prefetches if debug counter
        tripped.

2017-06-06  Tom de Vries  <tom@codesourcery.com>

        * doc/sourcebuild.texi (Testsuites, C Language Testsuites,
        gcc.c-torture/compile): Remove mention of NO_LABEL_VALUES in fixme.

2017-06-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/atomics.md (atomic_compare_and_swap<mode> expander):
        Use aarch64_reg_or_zero predicate for operand 4.
        (aarch64_compare_and_swap<mode> define_insn_and_split):
        Use aarch64_reg_or_zero predicate for operand 3.  Add 'Z' constraint.
        (aarch64_store_exclusive<mode>): Likewise for operand 2.

2017-06-06  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (arm_compute_save_reg_mask): Rename into ...
        (arm_compute_save_core_reg_mask): This.
        (thumb1_compute_save_reg_mask): Rename into ...
        (thumb1_compute_save_core_reg_mask): This.
        (arm_compute_save_reg0_reg12_mask): Adapt comment.
        (arm_compute_frame_layout): Likewise.

2017-06-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80974
        * tree-ssa-sccvn.c (set_ssa_val_to): Do not change but only
        keep or clear leaders SSA info.

2017-06-06  Tom de Vries  <tom@codesourcery.com>

        * config/nvptx/nvptx.c (split_mode_p): New function.
        (nvptx_declare_function_name, nvptx_print_operand): Use split_mode_p.

2017-06-06  Tom de Vries  <tom@codesourcery.com>

        * config/nvptx/nvptx.c (nvptx_print_operand): Use maybe_split_mode.

2017-06-06  Jan Hubicka  <hubicka@ucw.cz>

        PR bootstrap/80978
        * tree-cfg.c (execute_fixup_cfg): Fix condition on when to rescale
        profile.

2017-06-06  Jan Hubicka  <hubicka@ucw.cz>

        * shrink-wrap.c (handle_simple_exit): Update profile.
        (try_shrink_wrapping): Upate profile.

2017-06-06  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (tree_estimate_probability_bb): Add LOCAL_ONLY.
        (tree_guess_outgoing_edge_probabilities): New.
        * predict.h (tree_guess_outgoing_edge_probabilities): Declare.
        * tree-cfg.c (gimple_find_sub_bbs): Propagate profile.

2017-06-06  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-split.c (split_function): Initialize return bb profile.

2017-06-06  Jan Hubicka  <hubicka@ucw.cz>

        * profile.c (compute_branch_probabilities): Also initialize
        EXIT_BLOCK profile.

2017-06-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80928
        * tree-vect-loop.c (vect_update_vf_for_slp): Amend dumps.
        (vect_analyze_loop_operations): Properly guard analysis for
        pure SLP case.
        (vect_transform_loop): Likewise.
        (vect_analyze_loop_2): Also reset SLP type on PHIs.
        (vect_model_induction_cost): Do not cost for pure SLP.
        (vectorizable_induction): Pass in SLP node, implement SLP vectorization
        of induction in inner loop vectorization.
        * tree-vect-slp.c (vect_create_new_slp_node): Handle PHIs.
        (vect_get_and_check_slp_defs): Handle vect_induction_def.
        (vect_build_slp_tree): Likewise.  Handle PHIs as terminating the
        recursion.
        (vect_analyze_slp_cost_1): Cost induction.
        (vect_detect_hybrid_slp_stmts): Handle PHIs.
        (vect_get_slp_vect_defs): Likewise.
        * tree-vect-stmts.c (vect_analyze_stmt): Handle induction.
        (vect_transform_stmt): Handle SLP reductions.
        * tree-vectorizer.h (vectorizable_induction): Adjust.

2017-06-05  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (make_resolver_func): Update
        init_lowered_empty_function call.

2017-06-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/invoke.texi: Document the -fprofile-abs-path option.
        * common.opt (fprofile-abs-path): New option.
        * gcov-io.h (gcov_write_filename): Declare.
        * gcov-io.c (gcov_write_filename): New function.
        * coverage.c (coverage_begin_function): Use gcov_write_filename.
        * profile.c (output_location): Likewise.

2017-06-05  Jan Hubicka  <hubicka@ucw.cz>

        * shring-wrap.c: Revert accidental commit.

2017-06-05  Volker Reichelt  <v.reichelt@netcologne.de>

        * doc/invoke.texi (-Wduplicated-branches): Add to warning list.

2017-06-05  Jan Hubicka  <hubicka@ucw.cz>

        * cfgexpand.c (expand_gimple_tailcall): Initialize profile of
        new edge.
        * ipa-inline.c (want_inline_self_recursive_call_p): Watch for missing
        profile in callgraph edge.
        * profile-count.h (apply_probability): If THIS is 0, then result is 0
        (apply_scale): Likewise.
        * tree-inline.c (copy_bb, copy_edges_for_bb, copy_cfg_body):
        Also scale profile when inlining function with zero profile.
        (initialize_cfun): Update exit block profile even when it is zero.
        * tree-ssa-threadupdate.c (clear_counts_path): Handle correctly case
        when profile is read.

2017-06-05  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (toplevel): Include attribs.h.
        (CLONE_*): New constants to define the processors we can generate
        code for with the target_clone attribute.
        (rs6000_clone_map): New array to identify which clone processors
        the current program is running on.
        (TARGET_COMPARE_VERSION_PRIORITY): Define to enable the
        target_clone attribute.
        (TARGET_GENERATE_VERSION_DISPATCHER_BODY): Likewise.
        (TARGET_GET_FUNCTION_VERSIONS_DISPATCHER): Likewise.
        (TARGET_OPTION_FUNCTION_VERSIONS): Likewise.
        (cpu_expand_builtin): Add support for target_clone attribute.
        (rs6000_valid_attribute_p): Allow "default" attribute.
        (get_decl_name): New debug function to simplify printing the
        current function name in debugging statements.
        (rs6000_clone_priority): New functions to support the target_clone
        attribute, and be able to generate code to switch between ISA 2.05
        through ISA 3.0 (power6 through power9).
        (rs6000_compare_version_priority): Likewise.
        (rs6000_get_function_versions_dispatcher): Likewise.
        (make_resolver_func): Likewise.
        (add_condition_to_bb): Likewise.
        (dispatch_function_versions): Likewise.
        (rs6000_generate_version_dispatcher_body): Likewise.
        (rs6000_can_inline_p): Call get_decl_name for debugging usage.
        (fusion_gpr_load_p): Fix a spacing issue.
        * doc/extend.texi (Common Function Attributes): Document that the
        PowerPC supports the target_clone attribute.

2017-06-05  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.h: explain F symbol found in description of ARM
        register allocation in its legend.

2017-06-05  Jan Hubicka  <hubicka@ucw.cz>

        * config/mips/frame-header-opt.c: Include profile-count.h.
        * config/riscv/riscv.c: Include profile-count.h

2017-06-05  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-im.c (execute_sm_if_changed): Add FLAG_BBS parameter;
        update profile.
        (sm_set_flag_if_changed): Add bbs field.
        (execute_sm_if_changed_flag_set): Pass BBS.
        (execute_sm): Update.

2017-06-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-simd.md (aarch64_store_lane0<mode>):
        New pattern.

2017-06-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.md (sub<mode>3_compare1_imm): New define_insn.
        (peephole2): New peephole2 to emit the above.
        * config/aarch64/predicates.md (aarch64_sub_immediate): New predicate.

2017-06-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (define_peephole2 above
        *sub_<shift>_<mode>): New peephole.

2017-05-23  Jan Hubicka  <hubicka@ucw.cz>

        * config/i386/i386.c (make_resolver_func): Update.
        * Makefile.in: Add profile-count.h and profile-count.o
        * auto-profile.c (afdo_indirect_call): Update to new API.
        (afdo_set_bb_count): Update.
        (afdo_propagate_edge): Update.
        (afdo_propagate_circuit): Update.
        (afdo_calculate_branch_prob): Update.
        (afdo_annotate_cfg): Update.
        * basic-block.h: Include profile-count.h
        (struct edge_def): Turn count to profile_count.
        (struct basic_block_def): Likewie.
        (REG_BR_PROB_BASE): Move to profile-count.h
        (RDIV): Move to profile-count.h
        * bb-reorder.c (max_entry_count): Turn to profile_count.
        (find_traces): Update.
        (rotate_loop):Update.
        (connect_traces):Update.
        (sanitize_hot_paths):Update.
        * bt-load.c (migrate_btr_defs): Update.
        * cfg.c (RDIV): Remove.
        (init_flow): Use alloc_block.
        (alloc_block): Uninitialize count.
        (unchecked_make_edge): Uninitialize count.
        (check_bb_profile): Update.
        (dump_edge_info): Update.
        (dump_bb_info): Update.
        (update_bb_profile_for_threading): Update.
        (scale_bbs_frequencies_int): Update.
        (scale_bbs_frequencies_gcov_type): Update.
        (scale_bbs_frequencies_profile_count): New.
        * cfg.h (update_bb_profile_for_threading): Update.
        (scale_bbs_frequencies_profile_count): Declare.
        * cfgbuild.c (compute_outgoing_frequencies): Update.
        (find_many_sub_basic_blocks): Update.
        * cfgcleanup.c (try_forward_edges): Update.
        (try_crossjump_to_edge): Update.
        * cfgexpand.c (expand_gimple_tailcall): Update.
        (construct_exit_block): Update.
        * cfghooks.c (verify_flow_info): Update.
        (dump_bb_for_graph): Update.
        (split_edge): Update.
        (make_forwarder_block): Update.
        (duplicate_block): Update.
        (account_profile_record): Update.
        * cfgloop.c (find_subloop_latch_edge_by_profile): Update.
        (get_estimated_loop_iterations): Update.
        * cfgloopanal.c (expected_loop_iterations_unbounded): Update.
        (single_likely_exit): Update.
        * cfgloopmanip.c (scale_loop_profile): Update.
        (loopify): Update.
        (set_zero_probability): Update.
        (lv_adjust_loop_entry_edge): Update.
        * cfgrtl.c (force_nonfallthru_and_redirect): Update.
        (purge_dead_edges): Update.
        (rtl_account_profile_record): Update.
        * cgraph.c (cgraph_node::create): Uninitialize count.
        (symbol_table::create_edge): Uninitialize count.
        (cgraph_update_edges_for_call_stmt_node): Update.
        (cgraph_edge::dump_edge_flags): Update.
        (cgraph_node::dump): Update.
        (cgraph_edge::maybe_hot_p): Update.
        * cgraph.h: Include profile-count.h
        (create_clone), create_edge, create_indirect_edge): Update.
        (cgraph_node): Turn count to profile_count.
        (cgraph_edge0: Likewise.
        (make_speculative, clone): Update.
        (create_edge): Update.
        (init_lowered_empty_function): Update.
        * cgraphclones.c (cgraph_edge::clone): Update.
        (duplicate_thunk_for_node): Update.
        (cgraph_node::create_clone): Update.
        * cgraphunit.c (cgraph_node::analyze): Update.
        (cgraph_node::expand_thunk): Update.
        * final.c (dump_basic_block_info): Update.
        * gimple-streamer-in.c (input_bb): Update.
        * gimple-streamer-out.c (output_bb): Update.
        * graphite.c (print_global_statistics): Update.
        (print_graphite_scop_statistics): Update.
        * hsa-brig.c: Include basic-block.h.
        * hsa-dump.c: Include basic-block.h.
        * hsa-gen.c (T sum_slice): Update.
        (convert_switch_statements):Update.
        * hsa-regalloc.c: Include basic-block.h.
        * ipa-chkp.c (chkp_produce_thunks): Update.
        * ipa-cp.c (struct caller_statistics): Update.
        (init_caller_stats): Update.
        (gather_caller_stats): Update.
        (ipcp_cloning_candidate_p): Update.
        (good_cloning_opportunity_p): Update.
        (get_info_about_necessary_edges): Update.
        (dump_profile_updates): Update.
        (update_profiling_info): Update.
        (update_specialized_profile): Update.
        (perhaps_add_new_callers): Update.
        (decide_about_value): Update.
        (ipa_cp_c_finalize): Update.
        * ipa-devirt.c (struct odr_type_warn_count): Update.
        (struct decl_warn_count): Update.
        (struct final_warning_record): Update.
        (possible_polymorphic_call_targets): Update.
        (ipa_devirt): Update.
        * ipa-fnsummary.c (redirect_to_unreachable): Update.
        * ipa-icf.c (sem_function::merge): Update.
        * ipa-inline-analysis.c (do_estimate_edge_time): Update.
        * ipa-inline.c (compute_uninlined_call_time): Update.
        (compute_inlined_call_time): Update.
        (want_inline_small_function_p): Update.
        (want_inline_self_recursive_call_p): Update.
        (edge_badness): Update.
        (lookup_recursive_calls): Update.
        (recursive_inlining): Update.
        (inline_small_functions): Update.
        (dump_overall_stats): Update.
        (dump_inline_stats): Update.
        * ipa-profile.c (ipa_profile_generate_summary): Update.
        (ipa_propagate_frequency): Update.
        (ipa_profile): Update.
        * ipa-prop.c (ipa_make_edge_direct_to_target): Update.
        * ipa-utils.c (ipa_merge_profiles): Update.
        * loop-doloop.c (doloop_modify): Update.
        * loop-unroll.c (report_unroll): Update.
        (unroll_loop_runtime_iterations): Update.
        * lto-cgraph.c (lto_output_edge): Update.
        (lto_output_node): Update.
        (input_node): Update.
        (input_edge): Update.
        (merge_profile_summaries): Update.
        * lto-streamer-in.c (input_cfg): Update.
        * lto-streamer-out.c (output_cfg): Update.
        * mcf.c (create_fixup_graph): Update.
        (adjust_cfg_counts): Update.
        (sum_edge_counts): Update.
        * modulo-sched.c (sms_schedule): Update.
        * postreload-gcse.c (eliminate_partially_redundant_load): Update.
        * predict.c (maybe_hot_count_p): Update.
        (probably_never_executed): Update.
        (dump_prediction): Update.
        (combine_predictions_for_bb): Update.
        (propagate_freq): Update.
        (handle_missing_profiles): Update.
        (counts_to_freqs): Update.
        (rebuild_frequencies): Update.
        (force_edge_cold): Update.
        * predict.h: Include profile-count.h
        (maybe_hot_count_p, counts_to_freqs): UPdate.
        * print-rtl-function.c: Do not include cfg.h
        * print-rtl.c: Include basic-block.h
        * profile-count.c: New file.
        * profile-count.h: New file.
        * profile.c (is_edge_inconsistent): Update.
        (correct_negative_edge_counts): Update.
        (is_inconsistent): Update.
        (set_bb_counts): Update.
        (read_profile_edge_counts): Update.
        (compute_frequency_overlap): Update.
        (compute_branch_probabilities): Update; Initialize and deinitialize
        gcov_count tables.
        (branch_prob): Update.
        * profile.h (bb_gcov_counts, edge_gcov_counts): New.
        (edge_gcov_count): New.
        (bb_gcov_count): New.
        * shrink-wrap.c (try_shrink_wrapping): Update.
        * tracer.c (better_p): Update.
        * trans-mem.c (expand_transaction): Update.
        (ipa_tm_insert_irr_call): Update.
        (ipa_tm_insert_gettmclone_call): Update.
        * tree-call-cdce.c: Update.
        * tree-cfg.c (gimple_duplicate_sese_region): Update.
        (gimple_duplicate_sese_tail): Update.
        (gimple_account_profile_record): Update.
        (execute_fixup_cfg): Update.
        * tree-inline.c (copy_bb): Update.
        (copy_edges_for_bb): Update.
        (initialize_cfun): Update.
        (freqs_to_counts): Update.
        (copy_cfg_body): Update.
        (expand_call_inline): Update.
        * tree-ssa-ifcombine.c (update_profile_after_ifcombine): Update.
        * tree-ssa-loop-ivcanon.c (unloop_loops): Update.
        (try_unroll_loop_completely): Update.
        (try_peel_loop): Update.
        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Update.
        * tree-ssa-loop-niter.c (estimate_numbers_of_iterations_loop): Update.
        * tree-ssa-loop-split.c (connect_loops): Update.
        * tree-ssa-loop-unswitch.c (hoist_guard): Update.
        * tree-ssa-reassoc.c (branch_fixup): Update.
        * tree-ssa-tail-merge.c (replace_block_by): Update.
        * tree-ssa-threadupdate.c (create_block_for_threading): Update.
        (compute_path_counts): Update.
        (update_profile): Update.
        (recompute_probabilities): Update.
        (update_joiner_offpath_counts): Update.
        (estimated_freqs_path): Update.
        (freqs_to_counts_path): Update.
        (clear_counts_path): Update.
        (ssa_fix_duplicate_block_edges): Update.
        (duplicate_thread_path): Update.
        * tree-switch-conversion.c (case_bit_test_cmp): Update.
        (struct switch_conv_info): Update.
        * tree-tailcall.c (decrease_profile): Update.
        * tree-vect-loop-manip.c (slpeel_add_loop_guard): Update.
        * tree-vect-loop.c (scale_profile_for_vect_loop): Update.
        * value-prof.c (check_counter): Update.
        (gimple_divmod_fixed_value): Update.
        (gimple_mod_pow2): Update.
        (gimple_mod_subtract): Update.
        (gimple_ic_transform): Update.
        (gimple_stringop_fixed_value): Update.
        * value-prof.h (gimple_ic): Update.

2017-06-02  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c: Add support for built-in functions
        vector double vec_doublee (vector signed int);
        vector double vec_doublee (vector unsigned int);
        vector double vec_doublee (vector float);
        vector double vec_doubleh (vector signed int);
        vector double vec_doubleh (vector unsigned int);
        vector double vec_doubleh (vector float);
        vector double vec_doublel (vector signed int);
        vector double vec_doublel (vector unsigned int);
        vector double vec_doublel (vector float);
        vector double vec_doubleo (vector signed int);
        vector double vec_doubleo (vector unsigned int);
        vector double vec_doubleo (vector float);.
        * config/rs6000/rs6000-builtin.def: Add definitions for DOUBLEE,
        DOUBLEO, DOUBLEH, DOUBLEL, UNS_DOUBLEO, UNS_DOUBLEE, UNS_DOUBLEH,
        UNS_DOUBLEL.
        * config/rs6000/altivec.md: Add code generator for doublee<mode>2,
        unsdoubleev4si2, doubleo<mode>2, unsdoubleov4si2, doubleh<mode>2,
        unsdoublehv4si2, doublel<mode>2, unsdoublelv4si2, add mode attribute
        VS_sxwsp.
        * config/rs6000/altivec.h: Add define for vec_doublee, vec_doubleo,
        vec_doublel, vec_doubleh.
        * doc/extend.texi: Update the built-in documentation file for the
        new built-in functions.

2017-06-02  David Malcolm  <dmalcolm@redhat.com>

        PR jit/80954
        * ipa-inline-analysis.c (free_growth_caches): Set
        edge_removal_hook_holder to NULL after removing it.

2017-06-02  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64.c (aarch64_select_cc_mode): Return CC_SWP for
        comparision with zero.

2017-06-02  Will Schmidt  <will_schmidt@vnet.ibm.com>
        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add handling
        for early expansion of vec_min and vec_max builtins.
        (builtin_function_type): Add min/max unsigned variants to those
        identified as having unsigned arguments.

2017-06-02  Olivier Hainque  <hainque@adacore.com>

        * config/vx-common.h (DWARF_UNWIND_INFO): Switch #define to 1.

2017-06-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-simd.md (*aarch64_simd_vec_copy_lane<mode>):
        Use VALL_F16 iterator rather than VALL.

2017-06-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (aarch64_split_compare_and_swap):
        Emit CBNZ inside loop when doing a strong exchange and comparing
        against zero.  Generate the CC flags after the loop.

2017-06-02  David Edelsohn  <dje.gcc@gmail.com>

        * dwarf2out.c (DWARF_INITIAL_LENGTH_SIZE_STR): New.
        (dl_section_ref): New.
        (dwarf2out_finish): Copy debug_line_section_label to dl_section_ref.
        On AIX, append an expression to subtract the size of the
        section length to dl_section_ref.

2017-06-02  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add handling
        for early expansion of vector absolute builtins.

2017-06-02  Richard Biener  <rguenther@suse.de>

        * tree-vect-slp.c (vect_detect_hybrid_slp_2): Match up
        what we consider a relevant use stmt with vect_detect_hybrid_slp_stmts.

2017-06-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80948
        * tree-tailcall.c (find_tail_calls): Track stmts to move in
        stmt order as well.

2017-06-02  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_analyze_loop_operations): Not relevant
        PHIs are ok.
        * tree-vect-stmts.c (process_use): Do not mark backedge defs
        for inductions as relevant.

2017-06-02  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (get_initial_def_for_induction): Inline into ...
        (vectorizable_induction): ... this.  Remove dead code.

2017-06-02  Eric Botcazou  <ebotcazou@adacore.com>

        * builtins. (expand_builtin_alloca): Remove second parameter and
        infer its value from the first parameter instead.
        (expand_builtin) <BUILT_IN_ALLOCA>: Adjust call to above.

2017-06-02  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/80903
        * loop-doloop.c (add_test): Unshare sequence.

2017-06-02  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/invoke.texi: Document the -Wsizeof-pointer-div warning.

2017-06-01  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * config/i386/i386.c (x86_64_ms_sysv_extra_clobbered_registers): Make
        static.
        (xlogue_layout::get_stack_space_used, xlogue_layout::s_instances,
        xlogue_layout::get_instance, logue_layout::xlogue_layout,
        sp_valid_at, fp_valid_at, choose_basereg): Formatting.
        (xlogue_layout::get_stub_rtx): Make static.
        (xlogue_layout::get_stub_name): Avoid const-cast, make static.
        (xlogue_layout::compute_stub_managed_regs): Rename to...
        (xlogue_layout::count_stub_managed_regs): ...this.
        (xlogue_layout::is_stub_managed_reg): New function.
        (xlogue_layout::m_stub_names): Rename to...
        (xlogue_layout::s_stub_names): ...this, make static.
        (xlogue_layout::STUB_INDEX_OFFSET, xlogue_layout::MIN_REGS,
        xlogue_layout::MAX_REGS, xlogue_layout::MAX_EXTRA_REGS,
        xlogue_layout::VARIANT_COUNT, xlogue_layout::STUB_NAME_MAX_LEN,
        xlogue_layout::s_stub_names): Instantiate statics.
        (stub_managed_regs): Remove.
        (ix86_save_reg): Use xlogue_layout::compute_stub_managed_regs.
        (disable_call_ms2sysv_xlogues): Rename to...
        (warn_once_call_ms2sysv_xlogues): ...this, and warn only once.
        (ix86_initial_elimination_offset, ix86_expand_call): Fix call_ms2sysv
        warning logic.
        (ix86_static_chain): Make sure that ix86_static_chain_on_stack can't
        change after reload_completed.
        (ix86_can_use_return_insn_p): Use the ix86_frame data structure
        directly.
        (ix86_expand_prologue): Likewise.
        (ix86_expand_epilogue): Likewise.
        (ix86_expand_split_stack_prologue): Likewise.
        (ix86_compute_frame_layout): Remove frame parameter ...
        (TARGET_COMPUTE_FRAME_LAYOUT): ... and export it as a target hook.
        (ix86_finalize_stack_realign_flags): Call ix86_compute_frame_layout
        only if necessary.
        (ix86_init_machine_status): Don't set use_fast_prologue_epilogue_nregs.
        (ix86_frame): Move from here ...
        * config/i386/i386.h (ix86_frame): ... to here.
        (machine_function): Remove use_fast_prologue_epilogue_nregs, cache the
        complete ix86_frame data structure instead.  Remove some_ld_name.

2017-06-01  Pierre-Marie de Rodat  <derodat@adacore.com>

        * dwarf2out.c (dwarf2out_late_global_decl): Add locations for
        symbols that hold a DECL_VALUE_EXPR.

2017-06-01  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/80898
        * tree-sra.c (process_subtree_disqualification): Removed.
        (disqualify_candidate): Do not acll
        process_subtree_disqualification.
        (subtree_mark_written_and_enqueue): New function.
        (propagate_all_subaccesses): Set grp_write of LHS subtree if the
        RHS has been disqualified and re-queue LHS if necessary.  Apart
        from that, ignore disqualified RHS.

2017-06-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_emit_epilogue): Disable early return
        address fetch for z10 or later.

2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (tst_movb): Add guard when splitting.

2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_can_eliminate): Test against
        arc_frame_pointer_needed.

2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_expand_prologue): Emit a special barrier
        to prevent store reordering.
        * config/arc/arc.md (UNSPEC_ARC_STKTIE): Define.
        (type): Add block type.
        (stack_tie): Define special instruction to be used in
        expand_prologue.

2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (commutative_binary_comparison): Remove 'I'
        constraint. It is not valid for the pattern.
        (noncommutative_binary_comparison): Likewise.

2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/simdext.md (movv2hi_insn): Change predicate to avoid
        scaled addresses.

2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_conditional_register_usage): Allow r30 to
        be used by the reg-alloc.

2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (mulsi3): Avoid use of hard registers before
        reg-alloc when having mul64 or mul32x16 instructions.
        (mulsidi3): Likewise.
        (umulsidi3): Likewise.
        (mulsi32x16): New pattern.
        (mulsi64): Likewise.
        (mulsidi64): Likewise.
        (umulsidi64): Likewise.
        (MUL32x16_REG): Define.
        (mul64_600): Use MUL32x16_REG.
        (mac64_600): Likewise.
        (umul64_600): Likewise.
        (umac64_600): Likewise.

2017-06-01  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (mulsi3_700): Make it commutative.

2017-06-01  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * config/sparc/sparc.md (*zero_extendsidi2_insn_sp64): Set insn
        type for movstouw.
        (*sign_extendsidi2_insn): Likewise for movstosw.

2017-06-01  Pierre-Marie de Rodat  <derodat@adacore.com>

        * dwarf2out.c (get_discr_value): Call the get_debug_type hook on
        the type of the input discriminant value.  Convert the
        discriminant value of signedness vary.

2017-06-01  Volker Reichelt  <v.reichelt@netcologne.de>

        * doc/invoke.texi (-Wcatch-value): Document new shortcut.
        Add to -Wall section.

2017-06-01  Richard Biener  <rguenther@suse.de>

        PR middle-end/66313
        * fold-const.c (fold_plusminus_mult_expr): If the factored
        factor may be zero use a wrapping type for the inner operation.
        * tree-tailcall.c (independent_of_stmt_p): Pass in to_move bitmap
        and handle moved defs.
        (process_assignment): Properly guard the unary op case.  Return a
        tri-state indicating that moving the stmt before the call may allow
        to continue.  Pass through to_move.
        (find_tail_calls): Handle moving unrelated defs before
        the call.

2017-05-31  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/80618
        * config/rs6000/vector.md (*vector_uneq<mode>): Write the nor in the
        splitter result in the canonical way.

2017-05-31  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*zero_extendsidi2): Enable alternative (?r, *Yj)
        also for 32bit target.  Update insn attributes.
        (zero-extendsidi2 splitter): Allow all registers for operand 1.

2017-05-31  Sebastian Peryt  <sebastian.peryt@intel.com>

        * config/i386/avx512fintrin.h (_mm_mask_max_sd)
        (_mm_maskz_max_sd, _mm_mask_max_ss, _mm_maskz_max_ss)
        (_mm_mask_min_sd, _mm_maskz_min_sd, _mm_mask_min_ss)
        (_mm_maskz_min_ss): New intrinsics.

2017-05-31  Martin Liska  <mliska@suse.cz>

        * tree-vect-loop.c (vect_create_epilog_for_reduction):
        Change comment style to one we normally use.
        (vectorizable_reduction): Likewise.
        (vectorizable_induction): Likewise.
        * tree-vect-stmts.c (vectorizable_mask_load_store): Likewise.
        (vectorizable_call): Likewise.
        (vectorizable_simd_clone_call): Likewise.
        (vectorizable_conversion): Likewise.
        (vectorizable_assignment): Likewise.
        (vectorizable_shift): Likewise.
        (vectorizable_operation): Likewise.
        (vectorizable_store): Likewise.
        (vectorizable_load): Likewise.
        * tree-vectorizer.h: Likewise.

2017-05-31  Alexander Monakov  <amonakov@ispras.ru>

        * passes.c (emergency_dump_function): New.
        * tree-pass.h (emergency_dump_function): Declare.
        * plugin.c (plugins_internal_error_function): Remove.
        * plugin.h (plugins_internal_error_function): Remove declaration.
        * toplev.c (internal_error_function): New static function.  Use it...
        (general_init): ...here.

2017-05-31  Graham Markall  <graham.markall@embecosm.com>

        * config/arc/arc.c (arc_print_operand): Handle constant operands.
        (arc_rtx_costs): Add costs for new patterns.
        * config/arc/arc.md: Additional *add_n and *sub_n patterns.
        * config/arc/predicates.md: Add _1_2_3_operand predicate.

2017-05-31  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-ssa-strlen.c (get_next_strinfo): New function.
        (get_stridx_plus_constant): Use it.
        (zero_length_string): Likewise.
        (adjust_related_strinfos): Likewise.
        (adjust_last_stmt): Likewise.

2017-05-31  Richard Biener  <rguenther@suse.de>

        PR target/80880
        * config/i386/i386.c (ix86_expand_builtin): Remove assert
        for arg being an SSA name when expanding IX86_BUILTIN_BNDRET.

2017-05-31  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-vect-data-refs.c (vect_find_same_alignment_drs): Remove
        loop_vinfo argument and use of dependence distance vectors.
        Check instead whether the two references differ only in their
        initial value and assume that they have the same alignment if the
        difference is a multiple of the vector alignment.
        (vect_analyze_data_refs_alignment): Update call accordingly.

2017-05-31  Martin Liska  <mliska@suse.cz>

        PR target/79155
        * config/i386/cpuid.h: Fix typo in a comment in cpuid.h.

2017-05-31  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop-manip.c (create_intersect_range_checks_index)
        (create_intersect_range_checks): Move from ...
        * tree-data-ref.c (create_intersect_range_checks_index)
        (create_intersect_range_checks): ... to here.
        (create_runtime_alias_checks): New function factored from ...
        * tree-vect-loop-manip.c (vect_create_cond_for_alias_checks): ...
        here.  Call above function.
        * tree-data-ref.h (create_runtime_alias_checks): New function.

2017-05-31  Bin Cheng  <bin.cheng@arm.com>

        * tree-data-ref.c (prune_runtime_alias_test_list): Relax minimal
        segment length for dr_b and compute it in wide_int.

2017-05-31  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80906
        * graphite-isl-ast-to-gimple.c (copy_loop_close_phi_nodes): Get
        and pass through iv_map.
        (copy_bb_and_scalar_dependences): Adjust.
        (translate_pending_phi_nodes): Likewise.
        (copy_loop_close_phi_args): Handle code-generating IVs instead
        of ICEing.

2017-05-30  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-color.c (color_dict): Add "type-diff".
        (parse_gcc_colors): Update comment.
        * doc/invoke.texi (Diagnostic Message Formatting Options): Add
        -fdiagnostics-show-template-tree and -fno-elide-type.
        (GCC_COLORS): Add type-diff to example.
        (type-diff=): New.
        (-fdiagnostics-show-template-tree): New.
        (-fno-elide-type): New.
        * pretty-print.c (pp_format): Pass quote and formatters[argno] to
        the pp_format_decoder callback.  Call any m_format_postprocessor's
        "handle" method.
        (pretty_printer::pretty_printer): Initialize
        m_format_postprocessor.
        (pretty_printer::~pretty_printer): Delete any
        m_format_postprocessor.
        * pretty-print.h (printer_fn): Add bool and const char ** parameters.
        (class format_postprocessor): New class.
        (struct pretty_printer::format_decoder): Document the new parameters.
        (struct pretty_printer::m_format_postprocessor): New field.
        * tree-diagnostic.c (default_tree_printer): Update for new
        bool and const char ** params.
        * tree-diagnostic.h (default_tree_printer): Likewise.

2017-05-30  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/predicates.md (cc_reg_not_micro_cr0_operand): Delete.
        (lwa_operand): Delete rs6000_gen_cell_microcode test.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Delete
        rs6000_gen_cell_microcode code.
        (rs6000_final_prescan_insn): Delete.
        (rs6000_opt_vars): Delete the "gen-cell-microcode" and
        "warn-cell-microcode" entries.
        * config/rs6000/rs6000.h (FINAL_PRESCAN_INSN): Delete.
        * config/rs6000/rs6000.md: Delete rs6000_gen_cell_microcode tests
        throughout.  Change cc_reg_not_micro_cr0_operand to
        cc_reg_not_cr0_operand throughout.
        (*extendhi<mode>2_noload): Delete.
        * config/rs6000/rs6000.opt (mgen-cell-microcode): Replace by stub.
        (mwarn-cell-microcode): Delete.
        * doc/invoke.texi (RS/6000 and PowerPC Options): Delete
        -mgen-cell-microcode and -mwarn-cell-microcode.

2017-05-30  Uros Bizjak  <ubizjak@gmail.com>

        PR target/80833
        * config/i386/constraints.md (Yd): New constraint.
        (Ye): Ditto.
        * config/i386/i386.md (*movti_internal): Add (?r, Ye)
        and (?Yd, r) alternatives.  Update insn attributes.
        * config/i386/i386.md (*movti_internal): Add (?r, *Ye)
        and (?*Yd, r) alternatives.  Update insn attributes.
        (double-mode inter-unit splitters): Add new GR<->XMM splitters.

2017-05-30  Pierre-Marie de Rodat  <derodat@adacore.com>

        * gimplify.c (gimplify_modify_expr): Don't create a
        DECL_DEBUG_EXPR link if *FROM_P does not belong to the current
        function.

2017-05-30  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm-builtins.c (arm_expand_builtin): Remove const.

2017-05-30  Richard Biener  <rguenther@suse.de>

        * tree-vectorizer.h (struct _stmt_vec_info): Add reduc_type
        and reduc_def fields.
        (STMT_VINFO_REDUC_TYPE): New define.
        (STMT_VINFO_REDUC_DEF): Likewise.
        (vect_force_simple_reduction): Adjust prototype.
        * tree-vect-loop.c (vect_analyze_scalar_cycles_1): Adjust.
        (vect_is_simple_reduction): Remove check_reduction argument.
        (vect_force_simple_reduction): Adjust and set
        STMT_VINFO_REDUC_TYPE and STMT_VINFO_REDUC_DEF.
        (vectorizable_reduction): Do not re-do reduction analysis
        but use STMT_VINFO_REDUC_TYPE and STMT_VINFO_REDUC_DEF.
        * tree-parloops.c (gather_scalar_reductions): Adjust.

2017-05-30  Richard Biener  <rguenther@suse.de>

        PR middle-end/80901
        * cfgexpand.c (expand_gimple_cond): Match up loop fixup with
        split_edge code.

2017-05-24  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        * tree-vect-data-refs.c (vect_get_peeling_costs_all_drs):
        Introduce unknown_misalignment parameter and remove vf.
        (vect_peeling_hash_get_lowest_cost):
        Pass unknown_misalignment parameter.
        (vect_enhance_data_refs_alignment):
        Fix unsupportable data ref treatment.

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        * tree-vect-data-refs.c (vect_get_data_access_cost):
        Workaround for SLP handling.
        (vect_enhance_data_refs_alignment):
        Compute costs for doing no peeling at all, compare to the best
        peeling costs so far and avoid peeling if cheaper.

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        * tree-vect-data-refs.c (vect_peeling_hash_choose_best_peeling):
        Return peeling info and set costs to zero for unlimited cost
        model.
        (vect_enhance_data_refs_alignment): Also inspect all datarefs
        with unknown misalignment. Compute and costs for unknown
        misalignment, compare them to the costs for known misalignment
        and choose the cheapest for peeling.

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        * tree-vect-data-refs.c (vect_update_misalignment_for_peel): Rename.
        (vect_get_peeling_costs_all_drs): Create function.
        (vect_peeling_hash_get_lowest_cost):
        Use vect_get_peeling_costs_all_drs.
        (vect_peeling_supportable): Create function.
        (vect_enhance_data_refs_alignment): Use vect_peeling_supportable.

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Create
        DR_HAS_NEGATIVE_STEP.
        (vect_update_misalignment_for_peel): Define DR_MISALIGNMENT.
        (vect_enhance_data_refs_alignment): Use.
        (vect_duplicate_ssa_name_ptr_info): Use.
        * tree-vectorizer.h (dr_misalignment): Use.
        (known_alignment_for_access_p): Use.

2017-05-30  Jozef Lawrynowicz  <jozef.l@somniumtech.com>

        PR target/78838
        * config/msp430/msp430.c (gen_prefix): Return NULL when section name is
        .lowtext.
        (has_section_name): New function.

2017-05-30  Martin Liska  <mliska@suse.cz>

        PR other/80909
        * auto-profile.c (get_function_decl_from_block): Fix
        parenthesis.

2017-05-30  Richard Biener  <rguenther@suse.de>

        PR middle-end/80876
        * cfgexpand.c (expand_gimple_cond): Fixup preserving loops again.

2017-05-30  Martin Liska  <mliska@suse.cz>

        * dumpfile.c: Use newly added macro DUMP_FILE_INFO.
        * dumpfile.h (struct dump_file_info): Remove ctors.

2017-05-30  Martin Liska  <mliska@suse.cz>

        * predict.def: Fix GNU coding style.

2017-05-29  Max Filippov  <jcmvbkbc@gmail.com>

        * config/xtensa/xtensa.c (xtensa_initial_elimination_offset):
        Mark 'to' argument with ATTRIBUTE_UNUSED.

2017-05-29  Max Filippov  <jcmvbkbc@gmail.com>

        * config/xtensa/xtensa.c (xtensa_emit_call): Use
        HOST_WIDE_INT_PRINT_HEX instead of 0x%lx format string.
        (print_operand): Use HOST_WIDE_INT_PRINT_DEC instead of %ld
        format string.

2017-05-29  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/install.texi (Options specification): Restore entry of
        --enable-sjlj-exceptions.

2017-05-27  Michael Eager  <eager@eagercon.com>

        Revert:
        2016-01-21  Ajit Agarwal  <ajitkum@xilinx.com>

        See https://gcc.gnu.org/ml/gcc/2017-05/msg00221.html.

        * config/microblaze/microblaze.h
        (FIXED_REGISTERS): Update in macro.
        (CALL_USED_REGISTERS): Update in macro.

2017-05-27  François-Xavier Coudett  <fxcoudert@gcc.gnu.org>

        * doc/install.texi: Add links to macOS binary distributions.

2017-05-27  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/80887
        Revert:
        2017-05-25  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd ((A +- CST1) +- CST2): Allow some conversions.

2017-05-26  Martin Liska  <mliska@suse.cz>

        * dumpfile.h (enum dump_kind): Renumber TDF_* flags to be contiguous.

2017-05-26  Martin Liska  <mliska@suse.cz>

        * cfg.c (check_bb_profile): Do not use TDF_COMMENT and print
        always leading ';; '.
        (dump_bb_info): Likewise.
        (brief_dump_cfg): Likewise.
        * cfgrtl.c (print_rtl_with_bb): Do not use TDF_COMMENT.
        * dumpfile.c: Remove usage of TDF_VERBOSE.
        * dumpfile.h (enum dump_kind): Likewise.
        (dump_gimple_bb_header): Do not use TDF_COMMENT.
        * print-tree.c (debug_verbose): Remove.
        * tree-cfg.c (gimple_dump_cfg): Do not use TDF_COMMENT.
        (dump_function_to_file): Remove dumps guarded with TDF_VERBOSE.
        * tree-diagnostic.c (default_tree_printer): Replace
        TDF_DIAGNOSTIC with TDF_SLIM.

2017-05-26  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop-manip.c (create_intersect_range_checks_index): Pass
        in parameter loop, rather than loop_vinfo.
        (create_intersect_range_checks): Ditto.
        (vect_create_cond_for_alias_checks): Update call to above functions.

2017-05-26  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/80815
        * tree-data-ref.c (prune_runtime_alias_test_list): Simplify condition
        for merging runtime alias checks.  Handle negative DR_STEPs.

2017-05-26  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-data-refs.c (Operator==, comp_dr_with_seg_len_pair):
        Move from ...
        * tree-data-ref.c (Operator==, comp_dr_with_seg_len_pair): To here.
        * tree-vect-data-refs.c (vect_prune_runtime_alias_test_list): Factor
        out code pruning runtime alias checks.
        * tree-data-ref.c (prune_runtime_alias_test_list): New function
        factored out from above.
        * tree-vectorizer.h (struct dr_with_seg_len, dr_with_seg_len_pair_t):
        Move from ...
        * tree-data-ref.h (struct dr_with_seg_len, dr_with_seg_len_pair_t):
        ... to here.
        (prune_runtime_alias_test_list): New decalaration.

2017-05-26  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-data-refs.c (compare_tree): Rename and move ...
        * tree-data-ref.c (data_ref_compare_tree): ... to here.
        * tree-data-ref.h (data_ref_compare_tree): New decalaration.
        * tree-vect-data-refs.c (dr_group_sort_cmp): Update uses.
        (operator==, comp_dr_with_seg_len_pair): Ditto.
        (vect_prune_runtime_alias_test_list): Ditto.

2017-05-26  Martin Liska  <mliska@suse.cz>

        PR ipa/80663
        * params.def: Bound partial-inlining-entry-probability param.

2017-05-26  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/80875
        * fold-const.c (fold_binary_loc) <case MULT_EXPR>: Check if OP1
        can be negated.

2017-05-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80842
        * tree-ssa-ccp.c (set_lattice_value): Always meet with the old
        value.

2017-05-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80844
        * tree-vectorizer.c (adjust_simduid_builtins): Propagate results.

2017-05-25  Sebastian Peryt  <sebastian.peryt@intel.com>

        * doc/md.texi (Machine Constraints): Update x86 family
        machine constraints section to match 'config/i386/constraints.md'.

2017-05-25  Volker Reichelt  <v.reichelt@netcologne.de>

        * doc/invoke.texi (-Wcatch-value=): Document new warning option.

2017-05-25  Nathan Sidwell  <nathan@acm.org>

        * doc/invoke.texi (--enable-languages): Update documentation.

2017-05-25  Martin Liska  <mliska@suse.cz>

        * dumpfile.c: Add TDF_FOLDING.
        * dumpfile.h (enum dump_kind): Likewise.
        * genmatch.c (dt_simplify::gen_1): Use it.

2017-05-25  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (view_convert (convert@0 @1)): Handle zero-extension.

2017-05-25  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd ((A +- CST1) +- CST2): Allow some conversions.
        * tree.c (drop_tree_overflow): Handle COMPLEX_CST and VECTOR_CST.

2017-05-25  Marc Glisse  <marc.glisse@inria.fr>

        * fold-const.c (fold_binary_loc) [(A & C) == D]: Remove transformation.
        * match.pd (X == C): Rewrite it here.
        (with_possible_nonzero_bits, with_possible_nonzero_bits2,
        with_certain_nonzero_bits2): New predicates.
        * tree-ssanames.c (get_nonzero_bits): Handle INTEGER_CST.

2017-05-24  Nathan Sidwell  <nathan@acm.org>

        * lto-streamer-in.c (lto_input_data_block): Adjust T const cast to
        avoid warning.

        * auto-profile.c (afdo_propagate): Adjust T const cast to avoid
        warning.

2017-05-24  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/powerpcspe: New port.  Files are copied from the rs6000
        port, with "rs6000" in filenames replaced by "powerpcspe".

2017-05-24  Wilco Dijkstra  <wdijkstr@arm.com>

        PR rtl-optimization/80754
        * lra-remat.c (do_remat): Add overlap checks for dst_regno.

2017-05-24  Sheldon Lobo  <smlobo@sheldon.us.oracle.com>

        * config/sparc/sparc.md (length): Return the correct value for -mflat
        sibcalls to match output_sibcall.

2017-05-24  Segher Boessenkool  <segher@kernel.crashing.org>

        PR bootstrap/80860
        PR bootstrap/80843
        * config/rs6000/rs6000.c (struct machine_function): Add new field
        n_components.
        (rs6000_get_separate_components): Init that field, use it.
        (rs6000_components_for_bb): Use the field.

2017-05-24  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (arm_expand_prologue): Fix typo in comment.

2017-05-24  Peter Bergner  <bergner@vnet.ibm.com>

        PR middle-end/80823
        * tree-cfg.c (group_case_labels_stmt): Delete increment of "i";

2017-05-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/80725
        * config/s390/s390.c (s390_check_qrst_address): Check incoming
        address against address_operand predicate.
        * config/s390/s390.md ("*indirect_jump"): Swap alternatives.

2017-05-24  Eric Botcazou  <ebotcazou@adacore.com>

        * var-tracking.c (track_expr_p): Do not return 0 for tracked record
        parameters passed indirectly.

2017-05-23  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*movdi_internal): Remove SSE4
        alternative 18 (?r, *v).  Update insn attributes.
        (*movsi_internal): Remove SSE4 alternative 13 (?r, *v).
        Update insn attributes.
        (*zero_extendsidi2): Remove SSE4 alternative (?r, *x).
        Update insn attributes.
        * config/i386/sse.md (vec_extract<ssevecmodelower>_0): Remove SSE4
        alternative 1 (r, v). Remove isa attribute.
        * config/i386/i386.c (dimode_scalar_chain::make_vector_copies):
        Always move value through stack for !TARGET_INTER_UNIT_MOVES_TO_VEC
        and !TARGET_INTER_UNIT_MOVES_TO_VEC targets.

2017-05-23  Tom de Vries  <tom@codesourcery.com>

        * doc/sourcebuild.texi (Directives, Verify compiler message): Document
        dg-line directive.

2017-05-23  Jan Hubicka  <hubicka@ucw.cz>

        * cgraphunit.c (symbol_table::process_new_functions): Update.
        * ipa-fnsummary.c (pass_data_inline_parameters): Remove.
        (inline_generate_summary): Rename to ...
        (ipa_fn_summary_generate): ... this one.
        (inline_read_summary): Rename to ...
        (ipa_fn_summary_read): ... this one.
        (inline_write_summary): Rename to ...
        (ipa_fn_summary_write): ... this one.
        (inline_free_summary): Rename to ...
        (ipa_free_fn_summary): ... this one.
        (pass_data_local_fn_summary, pass_local_fn_summary,
        make_pass_local_fn_summary, pass_data_ipa_free_fn_summary,
        pass_ipa_free_fn_summary, make_pass_ipa_free_fn_summary,
        pass_data_ipa_fn_summary, pass_ipa_fn_summary,
        make_pass_ipa_fn_summary): New.
        * ipa-fnsummary.h (inline_generate_summary, inline_read_summary,
        inline_write_summary, inline_free_summary): Remove.
        (ipa_free_fn_summary) : New.
        * ipa-inline.c (ipa_inline): Update.
        (pass_ipa_inline): Do not generate summaries.
        * ipa.c (pass_data_ipa_free_fn_summary, pass_ipa_free_fn_summary):
        Remove.
        * passes.def: Replace pass_inline_parameters by pass_local_fn_summary
        and add pass_ipa_fn_summary.
        * tree-pass.h (make_pass_ipa_fn_summary, make_pass_local_fn_summary):
        New.
        (make_pass_inline_parameters): Remove.

2017-05-23  Thomas Schwinge  <thomas@codesourcery.com>

        * omp-low.c (struct omp_context): Remove "default_kind" member.
        Adjust all users.

        * omp-offload.c (execute_oacc_device_lower): Remove the
        parallelism dimensions function attributes for unparallelized
        OpenACC kernels constructs.

2017-05-23  Martin Liska  <mliska@suse.cz>

        * cgraph.c (cgraph_node::get_create): Use symtab_node::dump_{asm_,}name
        functions.
        (cgraph_edge::make_speculative): Likewise.
        (cgraph_edge::resolve_speculation): Likewise.
        (cgraph_edge::redirect_call_stmt_to_callee): Likewise.
        (cgraph_node::dump): Likewise.
        * cgraph.h: Likewise.
        * cgraphunit.c (analyze_functions): Likewise.
        (symbol_table::compile): Likewise.
        * ipa-cp.c (print_all_lattices): Likewise.
        (determine_versionability): Likewise.
        (initialize_node_lattices): Likewise.
        (ipcp_verify_propagated_values): Likewise.
        (estimate_local_effects): Likewise.
        (update_profiling_info): Likewise.
        (create_specialized_node): Likewise.
        (perhaps_add_new_callers): Likewise.
        (decide_about_value): Likewise.
        (decide_whether_version_node): Likewise.
        (identify_dead_nodes): Likewise.
        (ipcp_store_bits_results): Likewise.
        * ipa-devirt.c (dump_targets): Likewise.
        (ipa_devirt): Likewise.
        * ipa-icf.c (sem_item::dump): Likewise.
        (sem_function::equals): Likewise.
        (sem_variable::equals): Likewise.
        (sem_item_optimizer::read_section): Likewise.
        (sem_item_optimizer::execute): Likewise.
        (congruence_class::dump): Likewise.
        * ipa-inline-analysis.c (dump_ipa_call_summary): Likewise.
        (dump_inline_summary): Likewise.
        (estimate_node_size_and_time): Likewise.
        (inline_analyze_function): Likewise.
        * ipa-inline-transform.c (inline_call): Likewise.
        * ipa-inline.c (report_inline_failed_reason): Likewise.
        (want_early_inline_function_p): Likewise.
        (edge_badness): Likewise.
        (update_edge_key): Likewise.
        (inline_small_functions): Likewise.
        * ipa-profile.c (ipa_profile): Likewise.
        * ipa-prop.c (ipa_print_node_jump_functions): Likewise.
        (ipa_make_edge_direct_to_target): Likewise.
        (remove_described_reference): Likewise.
        (ipa_impossible_devirt_target): Likewise.
        (propagate_controlled_uses): Likewise.
        (ipa_print_node_params): Likewise.
        (ipcp_transform_function): Likewise.
        * ipa-pure-const.c (pure_const_read_summary): Likewise.
        (propagate_pure_const): Likewise.
        * ipa-reference.c (generate_summary): Likewise.
        (read_write_all_from_decl): Likewise.
        (propagate): Likewise.
        (ipa_reference_read_optimization_summary): Likewise.
        * ipa-utils.c (ipa_merge_profiles): Likewise.
        * ipa.c (walk_polymorphic_call_targets): Likewise.
        (symbol_table::remove_unreachable_nodes): Likewise.
        (ipa_single_use): Likewise.
        * passes.c (execute_todo): Likewise.
        * predict.c (drop_profile): Likewise.
        * symtab.c (symtab_node::get_dump_name): New function.
        (symtab_node::dump_name): Likewise.
        (symtab_node::dump_asm_name): Likewise.
        (symtab_node::dump_references): Likewise.
        (symtab_node::dump_referring): Likewise.
        (symtab_node::dump_base): Likewise.
        (symtab_node::debug_symtab): Likewise.
        * tree-sra.c (convert_callers_for_node): Likewise.
        * tree-ssa-structalias.c (ipa_pta_execute): Likewise.
        * value-prof.c (init_node_map): Likewise.

2017-05-23  Martin Liska  <mliska@suse.cz>

        * cgraph.h: Move symtab_node::dump_table to symbol_table::dump
        and symtab_node::debug_symtab to symbol_table::debug.
        * cgraphunit.c (analyze_functions): Use the renamed function.
        (symbol_table::compile): Likewise.
        * ipa-cp.c (ipcp_verify_propagated_values): Likewise.
        * ipa-icf.c (sem_item_optimizer::execute): Likewise.
        * passes.c (execute_todo): Likewise.
        * symtab.c (symbol_table::dump): New function.
        * tree-ssa-structalias.c (ipa_pta_execute): Use the renamed function.

2017-05-23  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-fnsummary.c (estimate_node_size_and_time): Do not sanity check
        that nonconst implies exec.

2017-05-23  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline-analysis.c (cgraph_2edge_hook_list, cgraph_edge_hook_list,
        inline_edge_removal_hook, inline_edge_duplication_hook): Remove.
        (inline_edge_summary_vec): Turn into ...
        (ipa_call_summaries): ... this one.
        (redirect_to_unreachable, edge_set_predicate,
        evaluate_properties_for_edge, inline_summary_alloc,
        reset_ipa_call_summary, reset_inline_summary,
        inline_summary_t::duplicate): Update.
        (inline_edge_duplication_hook): Turn to ...
        (ipa_call_summary_t::duplicate): ... this one.
        (inline_edge_removal_hook): Turn to ...
        (ipa_call_summary_t::remove): ... this one.
        (dump_inline_edge_summary): Turn to ...
        (dump_ipa_call_summary): ... this one.
        (estimate_function_body_sizes): Update.
        (inline_update_callee_summaries): Update.
        (remap_edge_change_prob): Update.
        (remap_edge_summaries): Update.
        (inline_merge_summary): Update.
        (do_estimate_edge_time): Update.
        (inline_generate_summary): Update.
        (inline_read_section): Update.
        (inline_read_summary): Update.
        (inline_free_summary): Update.
        * ipa-inline.c (can_inline_edge_p): Update.
        (compute_inlined_call_time): Update.
        (want_inline_small_function_p): Update.
        (edge_badness): Update.
        (early_inliner): Update.
        * ipa-inline.h (inline_edge_summary): Turn to ...
        (ipa_call_summary): ... this one.
        (ipa_call_summary_t): New class.
        (inline_edge_summary_t, inline_edge_summary_vec): Remove.
        (ipa_call_summaries): New.
        (inline_edge_summary): Remove.
        (estimate_edge_growth): Update.
        * ipa-profile.c (ipa_propagate_frequency_1): Update.
        * ipa-prop.c (ipa_make_edge_direct_to_target): Update.
        * ipa-split.c (execute_split_functions): Update.
        * ipa.c (symbol_table::remove_unreachable_nodes): Update.

2017-05-23  Tom de Vries  <tom@codesourcery.com>

        * doc/sourcebuild.texi (Effective-Target Keywords, Other hardware
        attributes): Document rdrand effective target.

2017-05-23  Tom de Vries  <tom@codesourcery.com>

        * doc/sourcebuild.texi (Effective-Target Keywords, Other hardware
        attributes): Sort alphabetically.

2017-05-23  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/genmultilib.awk: Use gsub instead of gensub.

2017-05-22  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/80718
        * config/rs6000/vsx.md (vsx_splat_<mode>, VSX_D iterator): Split
        V2DF/V2DI splat into two separate patterns, one that handles
        registers, and the other that only handles memory.  Drop support
        for splatting from a GPR on ISA 2.07 and then splitting the
        splat into direct move and splat.
        (vsx_splat_<mode>_reg): Likewise.
        (vsx_splat_<mode>_mem): Likewise.

2017-05-22  Segher Boessenkool  <segher@kernel.crashing.org>

        * cfgcleanup.c (bb_is_just_return): Allow CLOBBERs.

2017-05-22  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/80809
        * omp-low.c (finish_taskreg_remap): New function.
        (finish_taskreg_scan): If unit size of ctx->record_type
        is non-constant, unshare the size expression and replace
        decls in it with possible outer var refs.

        PR middle-end/80809
        * gimplify.c (omp_add_variable): For GOVD_DEBUG_PRIVATE use
        GOVD_SHARED rather than GOVD_PRIVATE with it.
        (gimplify_adjust_omp_clauses_1, gimplify_adjust_omp_clauses): Expect
        GOVD_SHARED rather than GOVD_PRIVATE with GOVD_DEBUG_PRIVATE.

        PR middle-end/80853
        * omp-low.c (lower_reduction_clauses): Pass OMP_CLAUSE_PRIVATE
        as last argument to build_outer_var_ref for pointer bases of array
        section reductions.

2017-05-19  Martin Sebor  <msebor@redhat.com>

        * print-tree.c (print_node): Print DECL_READ_P flag.

2017-05-22  Jan Hubicka  <hubicka@ucw.cz>

        * Makefile.in: Add ipa-fnsummary.o and ipa-fnsummary.h
        * auto-profile.c: Replace ipa-inline.h by ipa-fnsummary.h
        * cgraph.c: Likewise.
        * cgraphunit.c: Likewise.
        * gengtype.c: Likewise.
        * ipa-cp.c: Likewise.
        * ipa-devirt.c: Likewise.
        * ipa-icf.c: Likewise.
        * ipa-predicate.c: Likewise.
        * ipa-profile.c: Likewise.
        * ipa-prop.c: Likewise.
        * ipa-split.c: Likewise.
        * ipa.c: Likewise.
        * ipa-inline-analysis.c (inline_summaries, ipa_call_summaries,
        edge_predicate_pool, dump_inline_hints,
        inline_summary::account_size_time, redirect_to_unreachable,
        edge_set_predicate, set_hint_predicate,
        evaluate_conditions_for_known_args, evaluate_properties_for_edge,
        inline_summary_alloc, ipa_call_summary::reset, inline_summary::reset,
        inline_summary_t::remove, remap_hint_predicate_after_duplication,
        inline_summary_t::duplicate, ipa_call_summary_t::duplicate,
        ipa_call_summary_t::remove, initialize_growth_caches,
        free_growth_caches, dump_ipa_call_summary, dump_inline_summary,
        debug_inline_summary, dump_inline_summaries, initialize_inline_failed,
        mark_modified, unmodified_parm_1, unmodified_parm,
        unmodified_parm_or_parm_agg_item, eliminated_by_inlining_prob,
        set_cond_stmt_execution_predicate, set_switch_stmt_execution_predicate,
        compute_bb_predicates, will_be_nonconstant_expr_predicate,
        will_be_nonconstant_predicate, record_modified_bb_info,
        get_minimal_bb, record_modified, param_change_prob,
        phi_result_unknown_predicate, predicate_for_phi_result,
        array_index_predicate, clobber_only_eh_bb_p, fp_expression_p,
        estimate_function_body_sizes, compute_inline_parameters,
        compute_inline_parameters_for_curren, pass_data_inline_parameters,
        estimate_node_size_and_time, estimate_ipcp_clone_size_and_time,
        inline_update_callee_summaries, remap_edge_change_prob,
        remap_edge_summaries, remap_hint_predicate, inline_merge_summary,
        inline_update_overall_summary, inline_indirect_intraprocedural_analysis,
        inline_analyze_function, inline_summary_t::insert,
        inline_generate_summary, read_ipa_call_summary, inline_read_section,
        inline_read_summary, write_ipa_call_summary, inline_write_summary,
        inline_free_summary): Move to ipa-fnsummary.h
        (predicate_t): Remove.
        * ipa-fnsummary.c: New file.
        * ipa-inline.h:  Do not include sreal.h and ipa-predicate.h
        (enum inline_hints_vals, inline_hints, agg_position_info,
        INLINE_SIZE_SCALE, size_time_entry, inline_summary, inline_summary_t,
        inline_summaries, ipa_call_summary, ipa_call_summary_t,
        ipa_call_summaries, debug_inline_summary, dump_inline_summaries,
        dump_inline_summary, dump_inline_hints, inline_generate_summary,
        inline_read_summary, inline_write_summary, inline_free_summary,
        inline_analyze_function, initialize_inline_failed,
        inline_merge_summary, inline_update_overall_summary,
        compute_inline_parameters): Move to ipa-fnsummary.h
        * ipa-fnsummary.h: New file.
        * ipa-inline-transform.h: Include ipa-inline.h.
        * ipa-inline.c: LIkewise.

2017-05-22  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline.c (edge_badness): Use inlined_time instead of
        inline_summaries->get.

2017-05-22  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline.c (edge_badness): Use estimate_size_after_inlining.

2017-05-22  Nathan Sidwell  <nathan@acm.org>

        * doc/invoke.texi (fdump-translation-unit): Delete documentation.
        (fdump-lang): Document 'raw' option.
        * dumpfile.h (TDI_tu): Delete.
        * dumpfile.c (dump_files): Remove translation-unit.
        (FIRST_AUTO_NUMBERED_DUMP): Decrement.

2017-05-22  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/t-avr (AWK) [t-multilib]: Remove "-v FORMAT=Makefile"
        command option from $(AWK) call.
        * config/avr/genmultilib.awk: Simplify and rewrite so that it
        generates MULTILIB_REQUIRED instead of MULTILIB_EXCEPTIONS.
        [FORMAT]: Remove handling of variable.
        * config/avr/t-multilib: Regenerate.

2017-05-22  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline-analysis.c (inline_summary::reset): Do not reset
        self_time.
        (dump_inline_summary): Do not print self_time.
        (estimate_function_body_sizes): Do not set self_time.
        (compute_inline_parameters): Likewise.
        (inline_read_section, inline_write_summary): Do not stream self_time.
        * ipa-inline.h (inline_summary): Drop self_time.

2017-05-22  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline-analysis.c (account_size_time): Rename to ...
        (inline_summary::account_size_time): ... this one.
        (reset_ipa_call_summary): Turn to ...
        (ipa_call_summary::reset): ... this one.
        (reset_inline_summary): Turn to ...
        (inline_summary::reset): ... this one.
        (inline_summary_t::remove): Update.
        (inline_summary_t::duplicate): Update.
        (ipa_call_summary_t::remove): Update.
        (dump_inline_summary): Update.
        (estimate_function_body_sizes): Update.
        (compute_inline_parameters): Update.
        (estimate_node_size_and_time): Update.
        (inline_merge_summary): Update.
        (inline_update_overall_summary): Update.
        (inline_read_section): Update.
        (inline_write_summary): Update.
        * ipa-inline.h (inline_summary): Rename entry to size_time_table;
        add account_size_time and reset member functions.
        (ipa_call_summary): Add reset function.
        * ipa-predicate.h (predicate::operator &): Constify.

2017-05-22  Richard Biener  <rguenther@suse.de>

        * df-scan.c (df_insn_refs_verify): Speedup when not verifying.

2017-05-19  Jason Merrill  <jason@redhat.com>

        * tree.c (make_tree_vec_stat, grow_tree_vec_stat): Use size_t.

2017-05-19  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/80800
        * fold-const.c (extract_muldiv_1) <case TRUNC_DIV_EXPR>: Add
        TYPE_OVERFLOW_WRAPS checks.

2017-05-19  Thomas Schwinge  <thomas@codesourcery.com>

        * tree-core.h (enum omp_clause_default_kind): Add
        "OMP_CLAUSE_DEFAULT_PRESENT".
        * tree-pretty-print.c (dump_omp_clause): Handle it.
        * gimplify.c (enum gimplify_omp_var_data): Add
        "GOVD_MAP_FORCE_PRESENT".
        (gimplify_adjust_omp_clauses_1): Map it to
        "GOMP_MAP_FORCE_PRESENT".
        (oacc_default_clause): Handle "OMP_CLAUSE_DEFAULT_PRESENT".

        * gimplify.c (oacc_default_clause): Clarify.

2017-05-19  Nathan Sidwell  <nathan@acm.org>

        LANG_HOOK_REGISTER_DUMPS
        * toplev.c (general_init): Call register dump lang hook.
        * doc/invoke.texi: Document -fdump-lang option family.
        * dumpfile.c (dump_files): Remove class dump here.
        (FIRST_AUTO_NUMBERED_DUMP): Adjust.
        * dumpfile.h (tree_dump_index): Remove TDI_class.
        * langhooks-def.h (lhd_register_dumps): Declare.
        (LANG_HOOKS_REGISTER_DUMPS): Define.
        (LANG_HOOKS_INITIALIZER): Add it.
        * langhooks.c (lhd_register_dumps): Define.
        * langhooks.h (struct lang_hooks): Add register_dumps.

2017-05-19  Nathan Sidwell  <nathan@acm.org>

        * context.h (context::set_passes): New.
        * context.c (context::context): Do not create pass manager.
        * toplev.c (general_init): Create pass manager here.

2017-05-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (splitter to load of -1 and mask): Don't
        use this splitter if two add or or instructions would also work for
        the constant we want to generate.

2017-05-19  Richard Biener  <rguenther@suse.de>

        PR build/80821
        * genmatch.c (dt_node::gen_kids_1): Add missing scope around
        predicate evaluation.

2017-05-19  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline.h (ipa_call_summary): Turn sizes into signed;
        add ctor.
        * ipa-inline.c (want_inline_small_function_p): Do not cast to
        unsigned.

2017-05-19  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline-analysis.c (cgraph_2edge_hook_list, cgraph_edge_hook_list,
        inline_edge_removal_hook, inline_edge_duplication_hook): Remove.
        (inline_edge_summary_vec): Turn into ...
        (ipa_call_summaries): ... this one.
        (redirect_to_unreachable, edge_set_predicate,
        evaluate_properties_for_edge, inline_summary_alloc,
        reset_ipa_call_summary, reset_inline_summary,
        inline_summary_t::duplicate): Update.
        (inline_edge_duplication_hook): Turn to ...
        (ipa_call_summary_t::duplicate): ... this one.
        (inline_edge_removal_hook): Turn to ...
        (ipa_call_summary_t::remove): ... this one.
        (dump_inline_edge_summary): Turn to ...
        (dump_ipa_call_summary): ... this one.
        (estimate_function_body_sizes): Update.
        (inline_update_callee_summaries): Update.
        (remap_edge_change_prob): Update.
        (remap_edge_summaries): Update.
        (inline_merge_summary): Update.
        (do_estimate_edge_time): Update.
        (inline_generate_summary): Update.
        (inline_read_section): Update.
        (inline_read_summary): Update.
        (inline_free_summary): Update.
        * ipa-inline.c (can_inline_edge_p): Update.
        (compute_inlined_call_time): Update.
        (want_inline_small_function_p): Update.
        (edge_badness): Update.
        (early_inliner): Update.
        * ipa-inline.h (inline_edge_summary): Turn to ...
        (ipa_call_summary): ... this one.
        (ipa_call_summary_t): New class.
        (inline_edge_summary_t, inline_edge_summary_vec): Remove.
        (ipa_call_summaries): New.
        (inline_edge_summary): Remove.
        (estimate_edge_growth): Update.
        * ipa-profile.c (ipa_propagate_frequency_1): Update.
        * ipa-prop.c (ipa_make_edge_direct_to_target): Update.
        * ipa-split.c (execute_split_functions): Update.
        * ipa.c (symbol_table::remove_unreachable_nodes): Update.

2017-05-19  Richard Biener  <rguenther@suse.de>

        PR middle-end/80764
        * cfgexpand.c (expand_gimple_cond): Fix loop fixup.

2017-05-18  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (struct machine_function): Add field
        fpr_is_wrapped_separately.
        (rs6000_get_separate_components): Use 64 components.  Handle the
        new FPR components.
        (rs6000_components_for_bb): Handle the FPR components.
        (rs6000_emit_prologue_components): Handle the FPR components.
        (rs6000_emit_epilogue_components): Handle the FPR components.
        (rs6000_set_handled_components): Handle the FPR components.
        (rs6000_emit_prologue): Don't output prologue code for those FPRs
        that are already separately shrink-wrapped.
        (rs6000_emit_epilogue): Don't output epilogue code for those FPRs
        that are already separately shrink-wrapped.

2017-05-18  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/80510
        * config/rs6000/predicates.md (simple_offsettable_mem_operand):
        New predicate.

        * config/rs6000/rs6000.md (ALTIVEC_DFORM): New iterator.
        (define_peephole2 for Altivec d-form load): Add peepholes to catch
        cases where the register allocator uses a move and an offsettable
        memory operation to/from a FPR register on ISA 2.06/2.07.
        (define_peephole2 for Altivec d-form store): Likewise.

2017-05-18  Uros Bizjak  <ubizjak@gmail.com>

        PR target/80799
        * config/i386/mmx.md (*mov<mode>_internal): Enable
        alternatives 11, 12, 13 and 14 also for 32bit targets.
        Remove alternatives 15, 16, 17 and 18.
        * config/i386/sse.md (vec_concatv2di): Change
        alternative (!x, *y) to (x, ?!*Yn).

2017-05-18  Paolo Carlini  <paolo.carlini@oracle.com>

        * dumpfile.h (enum dump_kind): Remove stray comma.

2017-05-18  Jan Hubicka  <hubicka@ucw.cz>

        * Makefile.in: Add ipa-predicate.o and ipa-predicate.h
        * ipa-inline-analysis.c (NUM_CONDITIONS): turn into
        predicate::num_conditions
        (IS_NOT_CONSTANT): turn into predicate::is_not_constant.
        (CHANGED): turn into predicate::changed.
        (agg_position_info): Move to ipa-predicate.h
        (add_condition, predicate::add_clause, predicate::operator &=,
        predicate::or_with, predicate::evaluate, predicate::probability,
        dump_condition, dump_clause, predicate::dump,
        predicate::remap_after_duplication, predicate::remap_after_inlining,
        predicate::stream_in, predicate::stream_out): Move to ipa-predicate.c
        (evaluate_conditions_for_known_args): Update.
        (set_cond_stmt_execution_predicate): Update.
        * ipa-inline.h: Include ipa-predicate.h
        (condition, inline_param_summary, conditions, agg_position_info,
        predicate): Move to ipa-predicate.h
        * ipa-predicate.c: New file.
        * ipa-predicate.h: New file.

2017-05-18  Wilco Dijkstra  <wdijkstr@arm.com>

        * final.c (leaf_function_p): Check we are not in a sequence.

2017-05-18  Martin Liska  <mliska@suse.cz>

        * cfgrtl.c (rtl_verify_edges): Remove usage of TDF_RTL.
        * dumpfile.c (dump_register): Use new enum dump_kind.
        (get_dump_file_name): Likewise.
        (dump_enable_all): Likewise.
        (dump_switch_p_1): Likewise.
        (enable_rtl_dump_file): Remove usage of TDF_RTL.
        * dumpfile.h (enum dump_kind): New enum type.
        (struct dump_file_info): Create constructor and
        format fields and comments.
        * passes.c (pass_manager::register_one_dump_file):
        Use num dump_kind.
        * statistics.c (statistics_early_init): Likewise.
        * tree-ssa-loop-prefetch.c (dump_mem_details): Replace
        TDF_TREE with TDF_SLIM.
        (gather_memory_references_ref): Likewise.

2017-05-18  Martin Liska  <mliska@suse.cz>

        * vec.h (struct vnull): Use it.

2017-05-18  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline-analysis.c (predicate_conditions): Move to ipa-inline.h
        (true_predicate, false_predicate, true_predicate_p,
        false_predicate_p): Remove.
        (single_cond_predicate, not_inlined_predicate): Turn to member function
        in ipa-inline.h
        (add_condition): Update.
        (add_clause): Turn to...
        (predicate::add_clause): ... this one; update; allow passing NULL
        as parameter.
        (and_predicates): Turn to ...
        (predicate::operator &=): ... this one.
        (predicates_equal_p): Move to predicate::operator == in ipa-inline.h
        (or_predicates): Turn to ...
        (predicate::or_with): ... this one.
        (evaluate_predicate): Turn to ...
        (predicate::evaluate): ... this one.
        (predicate_probability): Turn to ...
        (predicate::probability): ... this one.
        (dump_condition): Update.
        (dump_predicate): Turn to ...
        (predicate::dump): ... this one.
        (account_size_time): Update.
        (edge_set_predicate): Update.
        (set_hint_predicate): UPdate.
        (evaluate_conditions_for_known_args): Update.
        (evaluate_properties_for_edge): Update.
        (remap_predicate_after_duplication): Turn to...
        (predicate::remap_after_duplication): ... this one.
        (remap_hint_predicate_after_duplication): Update.
        (inline_summary_t::duplicate): UPdate.
        (dump_inline_edge_summary): Update.
        (dump_inline_summary): Update.
        (set_cond_stmt_execution_predicate): Update.
        (set_switch_stmt_execution_predicate): Update.
        (compute_bb_predicates): Update.
        (will_be_nonconstant_expr_predicate): Update.
        (will_be_nonconstant_predicate): Update.
        (phi_result_unknown_predicate): Update.
        (predicate_for_phi_result): Update.
        (array_index_predicate): Update.
        (estimate_function_body_sizes): Update.
        (estimate_node_size_and_time): Update.
        (estimate_ipcp_clone_size_and_time): Update.
        (remap_predicate): Rename to ...
        (predicate::remap_after_inlining): ... this one.
        (remap_hint_predicate): Update.
        (inline_merge_summary): Update.
        (inline_update_overall_summary): Update.
        (estimate_size_after_inlining): Update.
        (read_predicate): Rename to ...
        (predicate::stream_in): ... this one.
        (read_inline_edge_summary): Update.
        (write_predicate): Rename to ...
        (predicate::stream_out): ... this one.
        (write_inline_edge_summary): Update.
        * ipa-inline.h (MAX_CLAUSES): Turn to predicate::max_clauses.
        (clause_t): Turn to uint32_t
        (predicate): Turn to class; implement constructor and operators
        ==, !=, &
        (size_time_entry): Update.
        (inline_summary): Update.
        (inline_edge_summary): Update.

2017-05-18  Marc Glisse  <marc.glisse@inria.fr>

        * fold-const.c (fold_binary_loc): Move transformation...
        * match.pd (C - X CMP X): ... here.

2017-05-18  Sheldon Lobo  <sheldon.lobo@oracle.com>

        * config/sparc/sparc.c (sparc_option_override): Set function
        alignment for -mcpu=niagara7 to 64 to match the I$ line.
        * config/sparc/sparc.h (BRANCH_COST): Set the SPARC M7 branch
        latency to 1.
        * config/sparc/sparc.h (BRANCH_COST): Set the SPARC T4 branch
        latency to 2.
        * config/sparc/sol2.h: Fix a ASM_CPU32_DEFAULT_SPEC typo.

2017-05-18  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/80797
        * ubsan.c (instrument_null): Unwrap ADDR_EXPRs.
        (pass_ubsan::execute): Call gimple_assign_single_p instead of
        gimple_assign_load_p.

2017-05-17  Segher Boessenkool  <segher@kernel.crashing.org>

        PR middle-end/80692
        * real.c (do_compare): Give decimal_do_compare preference over
        comparing just the signs.

2017-05-17  Uros Bizjak  <ubizjak@gmail.com>

        * doc/md.texi (Canonicalization of Instructions): Describe the
        canonical form of instructions that inherently set a condition
        code register.

2017-05-17  Peter Bergner  <bergner@vnet.ibm.com>

        PR middle-end/80775
        * tree-cfg.c: Move deletion of unreachable case statements to after
        the merging of consecutive case labels.

2017-05-17  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (cmse_nonsecure_call_clear_caller_saved): Refer
        readers to __gnu_cmse_nonsecure_call libcall for saving, clearing and
        restoring of callee-saved registers.

2017-05-17  Eric Botcazou  <ebotcazou@adacore.com>

        * compare-elim.c (equivalent_reg_at_start): Adjust outdated comment.
        * config/visium/visium.c (single_set_and_flags): Likewise.
        * config/visium/visium.md (Substitutions): Likewise.

2017-05-17  Martin Liska  <mliska@suse.cz>

        * cfg.c: Introduce dump_flags_t type and
        use it instead of int type.
        * cfg.h: Likewise.
        * cfghooks.c: Likewise.
        * cfghooks.h (struct cfg_hooks): Likewise.
        * cfgrtl.c: Likewise.
        * cfgrtl.h: Likewise.
        * cgraph.c (cgraph_node::get_body): Likewise.
        * coretypes.h: Likewise.
        * domwalk.c: Likewise.
        * domwalk.h: Likewise.
        * dumpfile.c (struct dump_option_value_info): Likewise.
        (dump_enable_all): Likewise.
        (dump_switch_p_1): Likewise.
        (opt_info_switch_p): Likewise.
        * dumpfile.h (enum tree_dump_index): Likewise.
        (struct dump_file_info): Likewise.
        * genemit.c: Likewise.
        * generic-match-head.c: Likewise.
        * gengtype.c (open_base_files): Likewise.
        * gimple-pretty-print.c: Likewise.
        * gimple-pretty-print.h: Likewise.
        * graph.c (print_graph_cfg): Likewise.
        * graphite-scop-detection.c (dot_all_sese): Likewise.
        * ipa-devirt.c (build_type_inheritance_graph): Likewise.
        * loop-unroll.c (report_unroll): Likewise.
        * passes.c (pass_manager::register_one_dump_file): Likewise.
        * print-tree.c: Likewise.
        * statistics.c: Likewise.
        * tree-cfg.c: Likewise.
        * tree-cfg.h: Likewise.
        * tree-dfa.c: Likewise.
        * tree-dfa.h: Likewise.
        * tree-dump.c (dump_function): Likewise.
        * tree-dump.h (struct dump_info): Likewise.
        * tree-pretty-print.c: Likewise.
        * tree-pretty-print.h: Likewise.
        * tree-ssa-live.c: Likewise.
        * tree-ssa-live.h: Likewise.
        * tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Likewise.
        * tree-vect-loop.c: Likewise.
        * tree-vect-slp.c: Likewise.

2017-05-16  James Greenhalgh  <james.greenhalgh@arm.com>
            Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/80457
        * tree-vect-stmts.c (vect_model_simple_cost): Model the cost
        of all arguments to a statement as scalar_to_vec operations.
        (vectorizable_call): Adjust call to vect_model_simple_cost for
        new parameter.
        (vectorizable_conversion): Likewise.
        (vectorizable_assignment): Likewise.
        (vectorizable_shift): Likewise.
        (vectorizable_operation): Likewise.
        (vectorizable_comparison): Likewise.
        (vect_is_simple_cond): Record the def types for operands.
        (vectorizable_condition): Likewise, call vect_model_simple_cost.
        * tree-vectorizer.h (vect_model_simple_cost): Add new parameter
        for statement argument count.

2017-05-16  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c: Add support for built-in functions
        vector unsigned long long vec_bperm (vector unsigned long long,
                                             vector unsigned char)
        vector signed long long vec_mule (vector signed int,
                                          vector signed int)
        vector unsigned long long vec_mule (vector unsigned int,
                                            vector unsigned int)
        vector signed long long vec_mulo (vector signed int,
                                          vector signed int)
        vector unsigned long long vec_mulo (vector unsigned int,
                                            vector unsigned int)
        vector signed char vec_sldw (vector signed char,
                                     vector signed char,
                                     const int)
        vector unsigned char vec_sldw (vector unsigned char,
                                       vector unsigned char,
                                       const int)
        vector signed short vec_sldw (vector signed short,
                                      vector signed short,
                                      const int)
        vector unsigned short vec_sldw (vector unsigned short,
                                        vector unsigned short,
                                        const int)
        vector signed int vec_sldw (vector signed int,
                                    vector signed int,
                                    const int)
        vector unsigned int vec_sldw (vector unsigned int,
                                      vector unsigned int,
                                      const int)
        vector signed long long vec_sldw (vector signed long long,
                                          vector signed long long,
                                          const int)
        vector unsigned long long vec_sldw (vector unsigned long long,
                                            vector unsigned long long,
                                            const int)
        * config/rs6000/rs6000-c: Add support for built-in functions
        * config/rs6000/rs6000-builtin.def: Add definition for SLDW.
        * config/rs6000/altivec.h: Add defintion for vec_sldw.
        * doc/extend.texi: Update the built-in documentation for the
        new built-in functions.

2017-05-16  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/80536
        PR sanitizer/80386
        * tree.c (save_expr): Don't fold the expression.

2017-05-16  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*movsi_internal): Split (?rm,*y) alternative
        to (?r,*Yn) and (?m,*y) alternatives, and (?*y,rm) to (?*Ym,r)
        and (?*y,m).  Update insn attributes.

2017-05-16  Martin Liska  <mliska@suse.cz>

        * cgraph.c (cgraph_edge::resolve_speculation): Add default value for
        flags argument of print_gimple_stmt, print_gimple_expr,
        print_generic_stmt and print_generic_expr.
        * cgraphclones.c (symbol_table::materialize_all_clones): Likewise.
        * coretypes.h: Likewise.
        * except.c (dump_eh_tree): Likewise.
        * gimple-fold.c (gimple_fold_stmt_to_constant_1): Likewise.
        * gimple-pretty-print.h: Likewise.
        * gimple-ssa-backprop.c (dump_usage_prefix): Likewise.
        (backprop::push_to_worklist): Likewise.
        (backprop::pop_from_worklist): Likewise.
        (backprop::process_use): Likewise.
        (backprop::intersect_uses): Likewise.
        (note_replacement): Likewise.
        * gimple-ssa-store-merging.c
        (pass_store_merging::terminate_all_aliasing_chains): Likewise.
        (imm_store_chain_info::coalesce_immediate_stores): Likewise.
        (pass_store_merging::execute): Likewise.
        * gimple-ssa-strength-reduction.c (dump_candidate): Likewise.
        (ssa_base_cand_dump_callback): Likewise.
        (dump_incr_vec): Likewise.
        (replace_refs): Likewise.
        (replace_mult_candidate): Likewise.
        (create_add_on_incoming_edge): Likewise.
        (create_phi_basis): Likewise.
        (insert_initializers): Likewise.
        (all_phi_incrs_profitable): Likewise.
        (introduce_cast_before_cand): Likewise.
        (replace_one_candidate): Likewise.
        * gimplify.c (gimplify_expr): Likewise.
        * graphite-isl-ast-to-gimple.c (is_valid_rename): Likewise.
        (set_rename): Likewise.
        (rename_uses): Likewise.
        (copy_loop_phi_nodes): Likewise.
        (add_close_phis_to_merge_points): Likewise.
        (copy_loop_close_phi_args): Likewise.
        (copy_cond_phi_args): Likewise.
        (graphite_copy_stmts_from_block): Likewise.
        (translate_pending_phi_nodes): Likewise.
        * graphite-poly.c (print_pdr): Likewise.
        (dump_gbb_cases): Likewise.
        (dump_gbb_conditions): Likewise.
        (print_scop_params): Likewise.
        * graphite-scop-detection.c (build_cross_bb_scalars_def): Likewise.
        (build_cross_bb_scalars_use): Likewise.
        (gather_bbs::before_dom_children): Likewise.
        * hsa-dump.c (dump_hsa_immed): Likewise.
        * ipa-cp.c (print_ipcp_constant_value): Likewise.
        (get_replacement_map): Likewise.
        * ipa-inline-analysis.c (dump_condition): Likewise.
        (estimate_function_body_sizes): Likewise.
        * ipa-polymorphic-call.c (check_stmt_for_type_change): Likewise.
        (ipa_polymorphic_call_context::get_dynamic_type): Likewise.
        * ipa-prop.c (ipa_dump_param): Likewise.
        (ipa_print_node_jump_functions_for_edge): Likewise.
        (ipa_modify_call_arguments): Likewise.
        (ipa_modify_expr): Likewise.
        (ipa_dump_param_adjustments): Likewise.
        (ipa_dump_agg_replacement_values): Likewise.
        (ipcp_modif_dom_walker::before_dom_children): Likewise.
        * ipa-pure-const.c (check_stmt): Likewise.
        (pass_nothrow::execute): Likewise.
        * ipa-split.c (execute_split_functions): Likewise.
        * omp-offload.c (dump_oacc_loop_part): Likewise.
        (dump_oacc_loop): Likewise.
        * trans-mem.c (tm_log_emit): Likewise.
        (tm_memopt_accumulate_memops): Likewise.
        (dump_tm_memopt_set): Likewise.
        (dump_tm_memopt_transform): Likewise.
        * tree-cfg.c (gimple_verify_flow_info): Likewise.
        (print_loop): Likewise.
        * tree-chkp-opt.c (chkp_print_addr): Likewise.
        (chkp_gather_checks_info): Likewise.
        (chkp_get_check_result): Likewise.
        (chkp_remove_check_if_pass): Likewise.
        (chkp_use_outer_bounds_if_possible): Likewise.
        (chkp_reduce_bounds_lifetime): Likewise.
        * tree-chkp.c (chkp_register_addr_bounds): Likewise.
        (chkp_mark_completed_bounds): Likewise.
        (chkp_register_incomplete_bounds): Likewise.
        (chkp_mark_invalid_bounds): Likewise.
        (chkp_maybe_copy_and_register_bounds): Likewise.
        (chkp_build_returned_bound): Likewise.
        (chkp_get_bound_for_parm): Likewise.
        (chkp_build_bndldx): Likewise.
        (chkp_get_bounds_by_definition): Likewise.
        (chkp_generate_extern_var_bounds): Likewise.
        (chkp_get_bounds_for_decl_addr): Likewise.
        * tree-chrec.c (chrec_apply): Likewise.
        * tree-data-ref.c (dump_data_reference): Likewise.
        (dump_subscript): Likewise.
        (dump_data_dependence_relation): Likewise.
        (analyze_overlapping_iterations): Likewise.
        * tree-inline.c (expand_call_inline): Likewise.
        (tree_function_versioning): Likewise.
        * tree-into-ssa.c (dump_defs_stack): Likewise.
        (dump_currdefs): Likewise.
        (dump_names_replaced_by): Likewise.
        (dump_update_ssa): Likewise.
        (update_ssa): Likewise.
        * tree-object-size.c (pass_object_sizes::execute): Likewise.
        * tree-parloops.c (build_new_reduction): Likewise.
        (try_create_reduction_list): Likewise.
        (ref_conflicts_with_region): Likewise.
        (oacc_entry_exit_ok_1): Likewise.
        (oacc_entry_exit_single_gang): Likewise.
        * tree-pretty-print.h: Likewise.
        * tree-scalar-evolution.c (set_scalar_evolution): Likewise.
        (get_scalar_evolution): Likewise.
        (add_to_evolution): Likewise.
        (get_loop_exit_condition): Likewise.
        (analyze_evolution_in_loop): Likewise.
        (analyze_initial_condition): Likewise.
        (analyze_scalar_evolution): Likewise.
        (instantiate_scev): Likewise.
        (number_of_latch_executions): Likewise.
        (gather_chrec_stats): Likewise.
        (final_value_replacement_loop): Likewise.
        (scev_const_prop): Likewise.
        * tree-sra.c (dump_access): Likewise.
        (disqualify_candidate): Likewise.
        (create_access): Likewise.
        (reject): Likewise.
        (maybe_add_sra_candidate): Likewise.
        (create_access_replacement): Likewise.
        (analyze_access_subtree): Likewise.
        (analyze_all_variable_accesses): Likewise.
        (sra_modify_assign): Likewise.
        (initialize_constant_pool_replacements): Likewise.
        (find_param_candidates): Likewise.
        (decide_one_param_reduction): Likewise.
        (replace_removed_params_ssa_names): Likewise.
        * tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
        * tree-ssa-copy.c (dump_copy_of): Likewise.
        (copy_prop_visit_cond_stmt): Likewise.
        * tree-ssa-dce.c (mark_operand_necessary): Likewise.
        * tree-ssa-dom.c (pass_dominator::execute): Likewise.
        (record_equivalences_from_stmt): Likewise.
        * tree-ssa-dse.c (compute_trims): Likewise.
        (delete_dead_call): Likewise.
        (delete_dead_assignment): Likewise.
        * tree-ssa-forwprop.c (forward_propagate_into_gimple_cond): Likewise.
        (forward_propagate_into_cond): Likewise.
        (pass_forwprop::execute): Likewise.
        * tree-ssa-ifcombine.c (ifcombine_ifandif): Likewise.
        * tree-ssa-loop-im.c (invariantness_dom_walker::before_dom_children):
        Likewise.
        (move_computations_worker): Likewise.
        (execute_sm): Likewise.
        * tree-ssa-loop-ivcanon.c (tree_estimate_loop_size): Likewise.
        (remove_exits_and_undefined_stmts): Likewise.
        (remove_redundant_iv_tests): Likewise.
        * tree-ssa-loop-ivopts.c (dump_use): Likewise.
        (adjust_iv_update_pos): Likewise.
        * tree-ssa-math-opts.c (bswap_replace): Likewise.
        * tree-ssa-phiopt.c (factor_out_conditional_conversion): Likewise.
        (value_replacement): Likewise.
        * tree-ssa-phiprop.c (phiprop_insert_phi): Likewise.
        * tree-ssa-pre.c (print_pre_expr): Likewise.
        (get_representative_for): Likewise.
        (create_expression_by_pieces): Likewise.
        (insert_into_preds_of_block): Likewise.
        (eliminate_insert): Likewise.
        (eliminate_dom_walker::before_dom_children): Likewise.
        (eliminate): Likewise.
        (remove_dead_inserted_code): Likewise.
        * tree-ssa-propagate.c (substitute_and_fold): Likewise.
        * tree-ssa-reassoc.c (get_rank): Likewise.
        (eliminate_duplicate_pair): Likewise.
        (eliminate_plus_minus_pair): Likewise.
        (eliminate_not_pairs): Likewise.
        (undistribute_ops_list): Likewise.
        (eliminate_redundant_comparison): Likewise.
        (update_range_test): Likewise.
        (optimize_range_tests_var_bound): Likewise.
        (optimize_vec_cond_expr): Likewise.
        (rewrite_expr_tree): Likewise.
        (rewrite_expr_tree_parallel): Likewise.
        (linearize_expr): Likewise.
        (break_up_subtract): Likewise.
        (linearize_expr_tree): Likewise.
        (attempt_builtin_powi): Likewise.
        (attempt_builtin_copysign): Likewise.
        (transform_stmt_to_copy): Likewise.
        (transform_stmt_to_multiply): Likewise.
        (dump_ops_vector): Likewise.
        * tree-ssa-sccvn.c (vn_nary_build_or_lookup_1): Likewise.
        (print_scc): Likewise.
        (set_ssa_val_to): Likewise.
        (visit_reference_op_store): Likewise.
        (visit_use): Likewise.
        (sccvn_dom_walker::before_dom_children): Likewise.
        (run_scc_vn): Likewise.
        * tree-ssa-scopedtables.c (avail_exprs_stack::lookup_avail_expr):
        Likewise.
        (expr_hash_elt::print): Likewise.
        (const_and_copies::pop_to_marker): Likewise.
        (const_and_copies::record_const_or_copy_raw): Likewise.
        * tree-ssa-structalias.c (compute_dependence_clique): Likewise.
        * tree-ssa-uninit.c (collect_phi_def_edges): Likewise.
        (dump_predicates): Likewise.
        (find_uninit_use): Likewise.
        (warn_uninitialized_phi): Likewise.
        (pass_late_warn_uninitialized::execute): Likewise.
        * tree-ssa.c (verify_vssa): Likewise.
        (verify_ssa): Likewise.
        (maybe_optimize_var): Likewise.
        * tree-vrp.c (dump_value_range): Likewise.
        (dump_all_value_ranges): Likewise.
        (dump_asserts_for): Likewise.
        (register_edge_assert_for_2): Likewise.
        (vrp_visit_cond_stmt): Likewise.
        (vrp_visit_switch_stmt): Likewise.
        (vrp_visit_stmt): Likewise.
        (vrp_visit_phi_node): Likewise.
        (simplify_cond_using_ranges_1): Likewise.
        (fold_predicate_in): Likewise.
        (evrp_dom_walker::before_dom_children): Likewise.
        (evrp_dom_walker::push_value_range): Likewise.
        (evrp_dom_walker::pop_value_range): Likewise.
        (execute_early_vrp): Likewise.

2017-05-16  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (loc_list_from_tree_1): Do not create
        DW_OP_GNU_variable_value for DECL_IGNORED_P decls.

2017-05-16  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (resolve_variable_value_in_expr): Lookup DIE
        just generated.
        (note_variable_value_in_expr): If we resolved the decl ref
        do not push to the stack.

2017-05-16  Matthew Wahab  <matthew.wahab@arm.com>

        * config/arm/arm_neon.h (vadd_f16): Use standard arithmetic
        operations in fast-math mode.
        (vaddq_f16): Likewise.
        (vmul_f16): Likewise.
        (vmulq_f16): Likewise.
        (vsub_f16): Likewise.
        (vsubq_f16): Likewise.
        * config/arm/neon.md (add<mode>3): New.
        (sub<mode>3): New.
        (fma:<VH:mode>3): New.  Also remove outdated comment.
        (mul<mode>3): New.

2017-05-16  Martin Liska  <mliska@suse.cz>

        PR ipa/79849.
        PR ipa/79850.
        * ipa-devirt.c (warn_types_mismatch): Fix typo.
        (odr_types_equivalent_p): Likewise.

2017-05-15  Sylvestre Ledru  <sylvestre@debian.org>

        * plugin.c (try_init_one_plugin): Fix ressource leaks (CID 726637).

2017-05-15  Uros Bizjak  <ubizjak@gmail.com>

        PR target/80425
        * config/i386.i386.md (*zero_extendsidi2): Do not penalize
        non-interunit SSE move alternatives with '?'.
        (zero-extendsidi peephole2): New peephole to skip intermediate
        general register in SSE zero-extend sequence.

2017-05-15  Jeff Law  <law@redhat.com>

        * reorg.c (relax_delay_slots): Create a new variable to hold
        the temporary target rather than clobbering TARGET_LABEL.

        * config/tilegx/tilegx.c (tilegx_expand_unaligned_load): Add
        missing argument to extract_bit_field call.
        * config/tilepro/tilepro.c (tilepro_expand_unaligned_load): Likewise.

2017-05-15  Martin Liska  <mliska@suse.cz>

        PR driver/31468
        * gcc.c (process_command): Do not allow empty argument of -o option.

2017-05-15  Renlin Li  <renlin.li@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_expand_call): Declare.
        * config/aarch64/aarch64.c (aarch64_expand_call): Define.
        * config/aarch64/constraints.md (Usf): Add long call check.
        * config/aarch64/aarch64.md (call): Use aarch64_expand_call.
        (call_value): Likewise.
        (sibcall): Likewise.
        (sibcall_value): Likewise.
        (call_insn): New.
        (call_value_insn): New.
        (sibcall_insn): Update rtx pattern.
        (sibcall_value_insn): Likewise.
        (call_internal): Remove.
        (call_value_internal): Likewise.
        (sibcall_internal): Likewise.
        (sibcall_value_internal): Likewise.
        (call_reg): Likewise.
        (call_symbol): Likewise.
        (call_value_reg): Likewise.
        (call_value_symbol): Likewise.

2017-05-14  Krister Walfridsson  <krister.walfridsson@gmail.com>

        PR target/80600
        * config/netbsd.h (NETBSD_LIBGCC_SPEC): Always add -lgcc.

2017-05-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386.i386.c (ix86_cc_modes_compatible): CCNOmode is
        compatible with CCGOCmode and with CCZmode.

2017-05-14  Martin Sebor  <msebor@redhat.com>

        PR middle-end/77671
        * gimple-fold.c (gimple_fold_builtin_sprintf): Make extern.
        (gimple_fold_builtin_snprintf): Same.
        * gimple-fold.h (gimple_fold_builtin_sprintf): Declare.
        (gimple_fold_builtin_snprintf): Same.
        * gimple-ssa-sprintf.c (get_format_string): Correct the detection
        of character types.
        (is_call_safe): New function.
        (try_substitute_return_value): Call it.
        (try_simplify_call): New function.
        (pass_sprintf_length::handle_gimple_call): Call it.

2017-05-14  Martin Sebor  <msebor@redhat.com>

        PR middle-end/80669
        * builtins.c (expand_builtin_stpncpy): Simplify.

2017-05-14  Daniel Santos  <daniel.santos@pobox.com>

        * config/i386/i386.opt: Add option -mcall-ms2sysv-xlogues.
        * config/i386/i386.h
        (x86_64_ms_sysv_extra_clobbered_registers): Change type to unsigned.
        (NUM_X86_64_MS_CLOBBERED_REGS): New macro.
        (struct machine_function): Add new members call_ms2sysv,
        call_ms2sysv_pad_in, call_ms2sysv_pad_out and call_ms2sysv_extra_regs.
        (struct machine_frame_state): New fields sp_realigned and
        sp_realigned_offset.
        * config/i386/i386.c
        (enum xlogue_stub): New enum.
        (enum xlogue_stub_sets): New enum.
        (class xlogue_layout): New class.
        (struct ix86_frame): New fields stack_realign_allocate_offset,
        stack_realign_offset and outlined_save_offset.  Modify comments to
        detail stack layout when using out-of-line stubs.
        (ix86_target_string): Add -mcall-ms2sysv-xlogues option.
        (ix86_option_override_internal): Add sorry() for TARGET_SEH and
        -mcall-ms2sysv-xlogues.
        (stub_managed_regs): New static variable.
        (ix86_save_reg): Add new parameter ignore_outlined to optionally omit
        registers managed by out-of-line stub.
        (disable_call_ms2sysv_xlogues): New function.
        (ix86_compute_frame_layout): Modify re-alignment calculations, disable
        m->call_ms2sysv when appropriate and compute frame layout for
        out-of-line stubs.
        (sp_valid_at, fp_valid_at): New inline functions.
        (choose_basereg): New function.
        (choose_baseaddr): Add align parameter, use choose_basereg and modify
        all callers.
        (ix86_emit_save_reg_using_mov, ix86_emit_restore_sse_regs_using_mov):
        Use align parameter of choose_baseaddr to generated aligned SSE movs
        when possible.
        (pro_epilogue_adjust_stack): Modify to track
        machine_frame_state::sp_realigned.
        (ix86_nsaved_regs): Modify to accommodate changes to ix86_save_reg.
        (ix86_nsaved_sseregs): Likewise.
        (ix86_emit_save_regs): Likewise.
        (ix86_emit_save_regs_using_mov): Likewise.
        (ix86_emit_save_sse_regs_using_mov): Likewise.
        (get_scratch_register_on_entry): Likewise.
        (gen_frame_set): New function.
        (gen_frame_load): Likewise.
        (gen_frame_store): Likewise.
        (emit_outlined_ms2sysv_save): Likewise.
        (emit_outlined_ms2sysv_restore): Likewise.
        (ix86_expand_prologue): Modify stack re-alignment code and call
        emit_outlined_ms2sysv_save when appropriate.
        (ix86_emit_leave): Clear machine_frame_state::sp_realigned.  Add
        parameter rtx_insn *insn, which allows the function to be used to only
        generate the notes.
        (ix86_expand_epilogue): Modify validity checks of frame and stack
        pointers, and call emit_outlined_ms2sysv_restore when appropriate.
        (ix86_expand_call): Modify to enable m->call_ms2sysv when appropriate.
        * config/i386/predicates.md
        (save_multiple): New predicate.
        (restore_multiple): Likewise.
        * config/i386/sse.md
        (save_multiple<mode>): New pattern.
        (save_multiple_realign<mode>): Likewise.
        (restore_multiple<mode>): Likewise.
        (restore_multiple_and_return<mode>): Likewise.
        (restore_multiple_leave_return<mode>): Likewise.
        * Makefile.in: Export HOSTCXX and HOSTCXXFLAGS to site.exp

2017-05-14  Julia Koval  <julia.koval@intel.com>

        * config/i386/i386-builtin-types.def (VOID_FTYPE_INT_INT64): New type.
        * config/i386/i386-builtin.def (__builtin_ia32_xgetbv)
        (__builtin_ia32_xsetbv): New builtins.
        * config/i386/i386.c (ix86_expand_special_args_builtin):
        Process new types.
        (ix86_expand_builtin): Special expand for new intrinsics.
        * config/i386/i386.md (UNSPECV_XGETBV, UNSPECV_XSETBV): New.
        (xsetbv, xsetbv_rex64, xgetbv, xgetbv_rex64): New insn patterns.
        * config/i386/xsaveintrin.h (_xsetbv, _getbv): New intrinsics.

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * cfganal.c (inverted_post_order_compute): Change argument type
        to vec *.
        * cfganal.h (inverted_post_order_compute): Adjust prototype.
        * df-core.c (rest_of_handle_df_initialize): Adjust.
        (rest_of_handle_df_finish): Likewise.
        (df_analyze_1): Likewise.
        (df_analyze): Likewise.
        (loop_inverted_post_order_compute): Change argument to be a vec *.
        (df_analyze_loop): Adjust.
        (df_get_n_blocks): Likewise.
        (df_get_postorder): Likewise.
        * df.h (struct df_d): Change field to be a vec.
        * lcm.c (compute_laterin): Adjust.
        (compute_available): Likewise.
        * lra-lives.c (lra_create_live_ranges_1): Likewise.
        * tree-ssa-dce.c (remove_dead_stmt): Likewise.
        * tree-ssa-pre.c (compute_antic): Likewise.

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * cfganal.c (connect_infinite_loops_to_exit): Adjust.
        (depth_first_search::depth_first_search): Change structure init
        function to this constructor.
        (depth_first_search::add_bb): Rename function to this member.
        (depth_first_search::execute): Likewise.
        (flow_dfs_compute_reverse_finish): Adjust.

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * ddg.c (find_nodes_on_paths): Use auto_sbitmap.
        (longest_simple_path): Likewise.
        * shrink-wrap.c (spread_components): Likewise.
        (disqualify_problematic_components): Likewise.
        (emit_common_heads_for_components): Likewise.
        (emit_common_tails_for_components): Likewise.
        (insert_prologue_epilogue_for_components): Likewise.

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree-ssa-dse.c (dse_dom_walker): Make m_live_byes a
        auto_sbitmap.

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * df-core.c (df_set_blocks): Start using auto_bitmap.
        (df_compact_blocks): Likewise.
        * df-problems.c (df_rd_confluence_n): Likewise.
        * df-scan.c (df_insn_rescan_all): Likewise.
        (df_process_deferred_rescans): Likewise.
        (df_update_entry_block_defs): Likewise.
        (df_update_exit_block_uses): Likewise.
        (df_entry_block_bitmap_verify): Likewise.
        (df_exit_block_bitmap_verify): Likewise.
        (df_scan_verify): Likewise.
        * lra-constraints.c (lra_constraints): Likewise.
        (undo_optional_reloads): Likewise.
        (lra_undo_inheritance): Likewise.
        * lra-remat.c (calculate_gen_cands): Likewise.
        (do_remat): Likewise.
        * lra-spills.c (assign_spill_hard_regs): Likewise.
        (spill_pseudos): Likewise.
        * tree-ssa-pre.c (bitmap_set_and): Likewise.
        (bitmap_set_subtract_values): Likewise.

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * haifa-sched.c (estimate_shadow_tick): Replace manual bitmap
        management with auto_bitmap.
        (fix_inter_tick): Likewise.
        (fix_recovery_deps): Likewise.
        * ira.c (add_store_equivs): Likewise.
        (find_moveable_pseudos): Likewise.
        (split_live_ranges_for_shrink_wrap): Likewise.
        * print-rtl.c (rtx_reuse_manager::rtx_reuse_manager): Likewise.
        (rtx_reuse_manager::seen_def_p): Likewise.
        (rtx_reuse_manager::set_seen_def): Likewise.
        * print-rtl.h (class rtx_reuse_manager): Likewise.

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * bt-load.c (combine_btr_defs): Use auto_bitmap to manage bitmap
        lifetime.
        (migrate_btr_def): Likewise.
        * cfgloop.c (get_loop_body_in_bfs_order): Likewise.
        * df-core.c (loop_post_order_compute): Likewise.
        (loop_inverted_post_order_compute): Likewise.
        * hsa-common.h: Likewise.
        * hsa-gen.c (hsa_bb::~hsa_bb): Likewise.
        * init-regs.c (initialize_uninitialized_regs): Likewise.
        * ipa-inline.c (resolve_noninline_speculation): Likewise.
        (inline_small_functions): Likewise.
        * ipa-reference.c (ipa_reference_write_optimization_summary): Likewise.
        * ira.c (combine_and_move_insns): Likewise.
        (build_insn_chain): Likewise.
        * loop-invariant.c (find_invariants): Likewise.
        * lower-subreg.c (propagate_pseudo_copies): Likewise.
        * predict.c (tree_predict_by_opcode): Likewise.
        (predict_paths_leading_to): Likewise.
        (predict_paths_leading_to_edge): Likewise.
        (estimate_loops_at_level): Likewise.
        (estimate_loops): Likewise.
        * shrink-wrap.c (try_shrink_wrapping): Likewise.
        (spread_components): Likewise.
        * tree-cfg.c (remove_edge_and_dominated_blocks): Likewise.
        * tree-loop-distribution.c (rdg_build_partitions): Likewise.
        * tree-predcom.c (tree_predictive_commoning_loop): Likewise.
        * tree-ssa-coalesce.c (coalesce_ssa_name): Likewise.
        * tree-ssa-phionlycprop.c (pass_phi_only_cprop::execute): Likewise.
        * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
        * tree-ssa-sink.c (nearest_common_dominator_of_uses): Likewise.
        * tree-ssa-threadupdate.c (compute_path_counts): Likewise.
        (mark_threaded_blocks): Likewise.
        (thread_through_all_blocks): Likewise.
        * tree-ssa.c (verify_ssa): Likewise.
        (execute_update_addresses_taken): Likewise.
        * tree-ssanames.c (verify_ssaname_freelists): Likewise.

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * cfganal.c (mark_dfs_back_edges): Replace manual stack with
        auto_vec.
        (post_order_compute): Likewise.
        (inverted_post_order_compute): Likewise.
        (pre_and_rev_post_order_compute_fn): Likewise.

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * genrecog.c (int_set::int_set): Explicitly construct our
        auto_vec base class.
        * vec.h (auto_vec::auto_vec): New constructor.

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * bitmap.h (class auto_bitmap): New constructor taking
        bitmap_obstack * argument.

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * bitmap.h (class auto_bitmap): Change type of m_bits to
        bitmap_head, and adjust ctor / dtor and member operators.

2017-05-13  Uros Bizjak  <ubizjak@gmail.com>

        * compare-elim.c (equivalent_reg_at_start): Return NULL_RTX
        when returned register mode doesn't match original mode.

2017-05-12  Jeff Law  <law@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        * config/mn10300/mn10300.c (mn10300_match_ccmode): Fix where
        we look for cc setter after the compare-elim changes.
        * config/mn10300/mn10300.md (addsi3_flags): Fix order of patterns
        within the vector to match what compare-elim now expects.
        (subsi3_flags, andsi3_flags, iorsi3_flags): Likewise.
        (xorsi3_flags, one_cmplsi2_flags): Likewise.

        * config/rx/rx.c (rx_match_ccmode): Fix where we look cc setter
        after the compare-elim changes.
        * config/rx/rx.md (abssi2_flags): Fix order of patterns within
        the vector to match what compare-elim now expects.
        (addsi3_flags, adc_flags, addsi3_flags peepholes): Likewise.
        (andsi3_flags, negsi2_flags, one_cmplsi2_flags): Likewise.
        (iorsi3_flags, rotlsi3_flags, rotrsi3_flags): Likewise.
        (ashrsi3_flags, lshrsi3_flags, ashlsi3_flags): Likewise.
        (ssaddsi3, subsi3_flags, sbb_flags, xorsi3_flags): Likewise.

        * config/visium/visium.c (single_set_and_flags): Fix where
        we look for cc setter after the compare-elim changes.
        * config/visium/visium.md (flags_subst_logic): Fix order of patterns
        with the vector to match what compare-elim now expects.
        (flags_subst_arith, add<mode>3_insn_set_carry): Likewise.
        (add<mode>3_insn_set_overflow, addsi3_insn_set_carry): Likewise.
        (addsi3_insn_set_overflow, sub<mode>3_insn_set_carry): Likewise.
        (sub<mode>3_insn_set_overflow, subsi3_insn_set_carry): Likewise.
        (subsi3_insn_set_overflow, negsi2_insn_set_carry): Likewise.
        (neg<mode>2_insn_set_overflow): Likewise.

2017-05-12  Jim Wilson  <jim.wilson@linaro.org>

        PR middle-end/79794
        * expmed.c (extract_bit_field_1): Add alt_rtl argument.  Before
        maybe_expand_insn call, set ops[0].target.  If still set after call,
        set alt_rtl.  Add extra arg to recursive calls.
        (extract_bit_field): Add alt_rtl argument.  Pass to
        extract_bit_field.
        * expmed.h (extract_bit_field): Fix prototype.
        * expr.c (emit_group_load_1, copy_blkmode_from_reg)
        (copy_blkmode_to_reg, read_complex_part, store_field): Pass extra NULL
        to extract_bit_field_calls.
        (expand_expr_real_1): Pass alt_rtl to expand_expr_real instead of 0.
        Pass alt_rtl to extract_bit_field calls.
        * calls.c (store_unaligned_arguments_into_psuedos)
        load_register_parameters): Pass extra NULL to extract_bit_field calls.
        * optabs.c (maybe_legitimize_operand): Clear op->target when call
        gen_reg_rtx.
        * optabs.h (struct expand_operand): Add target bitfield.

2017-05-12  Uros Bizjak  <ubizjak@gmail.com>

        * compare-elim.c (try_eliminate_compare): Canonicalize
        operation with embedded compare to
        [(set (reg:CCM) (compare:CCM (operation) (immediate)))
         (set (reg) (operation)].

        * config/i386/i386.c (TARGET_FLAGS_REGNUM): New define.

2017-05-12  Uros Bizjak  <ubizjak@gmail.com>

        PR target/80723
        * config/i386/i386.c (ix86_rtx_cost) [case PLUS]: Ignore the
        cost of adding a carry flag for ADC instruction.
        [case MINUS]: Ignore the cost of subtracting a carry flag
        for SBB instruction.

2017-05-12  Steven Munroe  <munroesj@gcc.gnu.org>

        * config.gcc (powerpc*-*-*): Add bmi2intrin.h, bmiintrin.h,
        and x86intrin.h
        * config/rs6000/bmiintrin.h: New file.
        * config/rs6000/bmi2intrin.h: New file.
        * config/rs6000/x86intrin.h: New file.

2017-05-12  Jeff Law  <law@redhat.com>

        * tree-vrp.c (vrp_dom_walker::before_dom_children): Push unwinding
        markers.

2017-05-12  Peter Bergner  <bergner@vnet.ibm.com>

        PR middle-end/80707
        * tree-cfg.c: Remove cfg edges of unreachable case statements.

2017-05-12  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add handling for
        early expansion of vector divide builtins.
        (builtin_function_type): Add VSX_BUILTIN_UDIV_V2DI to the list of
        builtins identified as having unsigned arguments.

2017-05-12  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (gimple-fold.h): New #include.
        (rs6000_gimple_fold_builtin): Add handling for early GIMPLE
        expansion of vector logical operations (and, andc, or, xor,
        nor, orc, nand).

2017-05-12  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * gimple-fold.c (create_tmp_reg_or_ssa_name): Remove static declaration.
        * gimple-fold.h (create_tmp_reg_or_ssa_name): New prototype.

2017-05-12  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add handling for
        early GIMPLE expansion of vector multiplies.

2017-05-12  Prakhar Bahuguna  <prakhar.bahuguna@arm.com>

        * config/arm/arm.md (movsi): Add TARGET_32BIT in addition to the
        TARGET_HAVE_MOVT conditional.
        (movt splitter): Likewise.

2017-05-12  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.h (has_VN_INFO): Declare.
        * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
        Fold all stmts not inplace.

2017-05-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80713
        * tree-ssa-pre.c (remove_dead_inserted_code): Clear
        inserted_exprs bit for not removed stmts.

2017-05-12  Thomas Schwinge  <thomas@codesourcery.com>

        PR middle-end/69921
        * tree-parloops.c (create_parallel_loop): Set "oacc kernels
        parallelized" attribute for parallelized OpenACC kernels.
        * omp-offload.c (execute_oacc_device_lower): Use it.

        * omp-expand.c (expand_omp_target) <GF_OMP_TARGET_KIND_OACC_KERNELS>:
        Set "oacc kernels" attribute.
        * omp-general.c (oacc_set_fn_attrib): Remove is_kernel formal
        parameter.  Adjust all users.
        (oacc_fn_attrib_kernels_p): Remove function.
        * omp-offload.c (execute_oacc_device_lower): Look for "oacc
        kernels" attribute instead of calling oacc_fn_attrib_kernels_p.
        * tree-ssa-loop.c (gate_oacc_kernels): Likewise.
        * tree-parloops.c (create_parallel_loop): If oacc_kernels_p,
        assert "oacc kernels" attribute is set.

2017-05-11  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c: Add support for built-in functions
        vector unsigned char vec_popcnt (vector signed char)
        vector unsigned char vec_popcnt (vector unsigned char)
        vector unsigned short vec_popcnt (vector signed short)
        vector unsigned short vec_popcnt (vector unsigned short)
        vector unsigned int vec_popcnt (vector signed int)
        vector unsigned int vec_popcnt (vector unsigned int)
        vector unsigned long long vec_popcnt (vector signed long long)
        vector unsigned long long vec_popcnt (vector unsigned long long)
        vector signed long long vec_slo (vector signed long long,
                                         vector signed char)
        vector signed long long vec_slo (vector signed long long,
                                         vector unsigned char)
        vector unsigned long long vec_slo (vector unsigned long long,
                                           vector signed char)
        vector unsigned long long vec_slo (vector unsigned long long,
                                           vector unsigned char)
        * config/rs6000/rs6000-builtin.def: Add definitions for VPOPCNTUB,
        VPOPCNTUH, VPOPCNTUW, and VPOPCNTUD overloads.
        * config/rs6000/altivec.h: Add define for vec_popcnt, vec_popcntb,
        vec_popcnth, vec_popcntw and vec_popcntd built-in functions.
        * doc/extend.texi: Update the built-in documentation file for the
        new built-in functions.

2017-05-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * attribs.h (sorted_attr_string): Move machine independent
        functions for target clone support from the i386 port to common
        code.  Rename ix86_function_versions to common_function_versions.
        Rename make_name to make_unique_name.
        (common_function_versions): Likewise.
        (make_unique_name): Likewise.
        (make_dispatcher_decl): Likewise.
        (is_function_default_version): Likewise.
        * attribs.c (attr_strcmp): Likewise.
        (sorted_attr_string): Likewise.
        (common_function_versions): Likewise.
        (make_unique_name): Likewise.
        (make_dispatcher_decl): Likewise.
        (is_function_default_version): Likewise.
        * config/i386/i386.c (attr_strcmp): Likewise.
        (sorted_attr_string): Likewise.
        (ix86_function_versions): Likewise.
        (make_name): Likewise.
        (make_dispatcher_decl): Likewise.
        (is_function_default_version): Likewise.
        (TARGET_OPTION_FUNCTION_VERSIONS): Update target function hook.

2017-05-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/80695
        * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost):
        Account for direct move costs for vec_construct of integer
        vectors.

2017-05-11  Uros Bizjak  <ubizjak@gmail.com>

        PR target/80706
        * config/i386/sync.md (UNSPEC_LDX_ATOMIC): New unspec.
        (UNSPEC_STX_ATOMIC): Ditto.
        (loaddi_via_sse): New insn.
        (storedi_via_sse): Ditto.
        (atomic_loaddi_fpu): Emit loaddi_via_sse and storedi_via_sse.
        Update corresponding peephole2 patterns.
        (atomic_storedi_fpu): Ditto.

2017-05-11  Julia Koval  <julia.koval@intel.com>

        * config/i386/avx512fintrin.h (_mm_mask_rsqrt14_sd)
        (_mm_maskz_rsqrt14_sd, _mm_mask_rsqrt14_ss, _mm_maskz_rsqrt14_ss):
        New intrinsics.
        * config/i386/i386-builtin.def (__builtin_ia32_rsqrt14sd_mask)
        (__builtin_ia32_rsqrt14ss_mask): New builtins.
        * config/i386/sse.md (rsqrt14_<mode>_mask): New pattern.

2017-05-11  Nathan Sidwell  <nathan@acm.org>

        * graphite-poly.c: Include dumpfile.h.

        * dumpfle.h (dump_function): Declare here ...
        * tree-dump.h (dump_function): ... not here.
        * dumpfile.c: #include tree-cfg.h.
        (dump_function): Move here from ...
        * tree-dump.c (dump_function): ... here.
        * gimplify.c: #include splay-tree.h, not tree-dump.h.
        * graphite-poly.c: Don't include tree-dump.h.
        * cgraphclones.c: Include dumpfile.h not tree-dump.h.
        * print-tree.c: Likewise.
        * stor-layout.c: Likewise.
        * tree-nested.c: Likewise.

        * dumpfile.c (dump_start): Use TDF_FLAGS.
        (dump_enable_all): Fix TDF_KIND check thinko.

2017-05-11  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        array entries to represent two legal parameterizations of the
        overloaded __builtin_cmpb function, as represented by the
        P6_OV_BUILTIN_CMPB constant.
        (altivec_resolve_overloaded_builtin): Add special case handling
        for the __builtin_cmpb function, as represented by the
        P6_OV_BUILTIN_CMPB constant.
        * config/rs6000/rs6000-builtin.def (BU_P6_2): New macro.
        (BU_P6_64BIT_2): New macro.
        (BU_P6_OVERLOAD_2): New macro
        (CMPB_32): Add 32-bit compare-bytes support for 32-bit only targets.
        (CMPB): Add 64-bit compare-bytes support for 32-bit and 64-bit targets.
        (CMPB): Add overload support to represent both 32-bit and 64-bit
        compare-bytes function.
        * config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add
        support for TARGET_CMPB.
        * config/rs6000/rs6000.h: Add support for RS6000_BTM_CMPB.
        * doc/extend.texi (PowerPC AltiVec Built-in Functions): Add
        documentation of the __builtin_cmpb overloaded built-in function.

2017-05-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80705
        * tree-vect-data-refs.c (vect_analyze_data_refs): DECL_NONALIASED
        bases are not vectorizable.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (determine_set_costs): Skip non-interger
        when counting register pressure.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (compare_cost_pair): New.
        (iv_ca_more_deps): Renamed to ...
        (iv_ca_compare_deps): ... this.
        (iv_ca_extend): Extend iv_ca if NEW_CP is cheaper than OLD_CP.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (find_interesting_uses): Move inv vars dump
        to ...
        (determine_group_iv_costs): ... here.
        (find_inv_vars_cb): Record inv var if it's not recorded before.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (allow_ip_end_pos_p): Refine comments.
        (get_shiftadd_cost): Ditto.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-address.c: Include header file.
        (move_hint_to_base): Return TRUE if BASE_HINT is moved to memory
        address.
        (add_to_parts): Refactor.
        (addr_to_parts): New parameter.  Update use of move_hint_to_base.
        (create_mem_ref): Update use of addr_to_parts.  Re-associate addr
        in new order.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/53090
        * tree-ssa-loop-ivopts.c (enum comp_iv_rewrite): New enum value
        COMP_IV_EXPR_2.
        (extract_cond_operands): Detect condition with IV on both sides
        and return COMP_IV_EXPR_2.
        (find_interesting_uses_cond): Add iv_use for both IVs in condition.
        (rewrite_use_compare): Simplify by removing call to function
        extract_cond_operands.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (enum comp_iv_rewrite): New.
        (extract_cond_operands): Detect condition comparing against non-
        invariant bound and return appropriate enum value.
        (find_interesting_uses_cond): Update use of extract_cond_operands.
        Handle its return value accordingly.
        (determine_group_iv_cost_cond, rewrite_use_compare): Ditto.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Re-associate
        nonlinear iv_use computation in loop invariant sensitive way.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (relate_compare_use_with_all_cands): New.
        (find_iv_candidates): Call relate_compare_use_with_all_cands.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (struct iv_cand): New field inv_exprs.
        (dump_cand): Support iv_cand.inv_exprs.
        (add_candidate_1): Record invariant exprs in iv_cand.inv_exprs
        for candidates.
        (iv_ca_set_no_cp, iv_ca_set_cp, free_loop_data): Support
        iv_cand.inv_exprs.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (multiplier_allowed_in_address_p): Move
        from ...
        * tree-ssa-address.c (multiplier_allowed_in_address_p): ... to here
        as local function.  Include necessary header files.
        * tree-ssa-loop-ivopts.h (multiplier_allowed_in_address_p): Delete.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (autoinc_possible_for_pair): Simplify.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (force_expr_to_var_cost): Handle more
        operators: TRUNC_DIV_EXPR, BIT_AND_EXPR, BIT_IOR_EXPR, LSHIFT_EXPR,
        RSHIFT_EXPR and BIT_NOT_EXPR.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (get_loop_invariant_expr): Simplify.
        (adjust_setup_cost): New parameter supporting round up adjustment.
        (struct address_cost_data): Delete.
        (force_expr_to_var_cost): Don't bound cost with spill_cost.
        (split_address_cost, ptr_difference_cost): Delete.
        (difference_cost, compare_aff_trees, record_inv_expr): Delete.
        (struct ainc_cost_data): New struct.
        (get_address_cost_ainc): New function.
        (get_address_cost, get_computation_cost): Reimplement.
        (determine_group_iv_cost_address): Record inv_expr for all uses of
        a group.
        (determine_group_iv_cost_cond): Call get_loop_invariant_expr.
        (iv_ca_has_deps): Reimplemented to ...
        (iv_ca_more_deps): ... this.  Check if NEW_CP introduces more deps
        than OLD_CP.
        (iv_ca_extend): Call iv_ca_more_deps.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-address.c (struct mem_address): Move to header file.
        (valid_mem_ref_p, move_fixed_address_to_symbol): Make it global.
        * tree-ssa-address.h (struct mem_address): Move from C file.
        (valid_mem_ref_p, move_fixed_address_to_symbol): Declare.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * tree-affine.h (aff_combination_type): New interface.
        (aff_combination_zero_p): Remove static.
        (aff_combination_const_p): New interface.
        (aff_combination_singleton_var_p): New interfaces.

2017-05-11  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
        Skip unreachable blocks and destinations.
        (eliminate): Move stmt removal and fixup ...
        (fini_eliminate): ... here.  Skip inserted exprs.
        (pass_pre::execute): Move fini_pre after fini_eliminate.
        * tree-ssa-tailmerge.c: Include tree-cfgcleanup.h.
        (tail_merge_optimize): Run cleanup_tree_cfg if requested by
        PRE to get rid of dead code that has invalid SSA form and
        split critical edges again.

2017-05-11  Bin Cheng  <bin.cheng@arm.com>

        * rtlanal.c (rtx_cost): Handle TRUNCATE between tieable modes.

2017-05-11  Richard Biener  <rguenther@suse.de>

        * passes.c (execute_function_todo): Verify loops if they are
        said to be up-to-date.
        * cfgexpand.c (pass_expand::execute): Discard loops for -dx.
        * trans-mem.c (pass_tm_edges::execute): Mark loops for fixup.

2017-05-10  John David Anglin  <danglin@gcc.gnu.org>

        PR target/80090
        * config/pa/pa.c (pa_assemble_integer): When outputting a SYMBOL_REF,
        handle calling assemble_external ourself.

        PR target/79027
        * config/pa/pa.c (pa_cannot_change_mode_class): Reject changes to/from
        modes with zero size.  Enhance comment.

2017-05-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (altivec_init_builtins): Define POWER8
        built-ins for vec_xl and vec_xst with short and char pointer
        arguments.

2017-05-10  Sebastian Peryt  <sebastian.peryt@intel.com>

        * config/i386/avx512fintrin.h (_mm_mask_max_round_sd)
        (_mm_maskz_max_round_sd, _mm_mask_max_round_ss)
        (_mm_maskz_max_round_ss, _mm_mask_min_round_sd)
        (_mm_maskz_min_round_sd, _mm_mask_min_round_ss)
        (_mm_maskz_min_round_ss): New intrinsics.
        * config/i386/i386-builtin-types.def (V2DF, V2DF, V2DF, V2DF, UQI, INT)
        (V4SF, V4SF, V4SF, V4SF, UQI, INT): New function type aliases.
        * config/i386/i386-builtin.def (__builtin_ia32_maxsd_mask_round)
        (__builtin_ia32_maxss_mask_round, __builtin_ia32_minsd_mask_round)
        (__builtin_ia32_minss_mask_round): New builtins.
        * config/i386/i386.c (V2DF_FTYPE_V2DF_V2DF_V2DF_UQI_INT)
        (V4SF_FTYPE_V4SF_V4SF_V4SF_UQI_INT): Handle new types.
        * config/i386/sse.md (<sse>_vm<code><mode>3<round_saeonly_name>):
        Rename to ...
        (<sse>_vm<code><mode>3<mask_name><round_saeonly_name>): ... this.
        (v<maxmin_float><ssescalarmodesuffix>\t{<round_saeonly_op3>%2, %1, %0|%0, %1, %<iptr>2<round_saeonly_op3>}):
        Change to ...
        (v<maxmin_float><ssescalarmodesuffix>\t{<round_saeonly_mask_op3>%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %<iptr>2<round_saeonly_mask_op3>}):
        ... this.

2017-05-10  Sebastian Peryt  <sebastian.peryt@intel.com>

        * config/i386/avx512fintrin.h (_mm_mask_mul_round_sd)
        (_mm_maskz_mul_round_sd, _mm_mask_mul_round_ss)
        (_mm_maskz_mul_round_ss, _mm_mask_div_round_sd)
        (_mm_maskz_div_round_sd, _mm_mask_div_round_ss)
        (_mm_maskz_div_round_ss, _mm_mask_mul_sd, _mm_maskz_mul_sd)
        (_mm_mask_mul_ss, _mm_maskz_mul_ss, _mm_mask_div_sd)
        (_mm_maskz_div_sd, _mm_mask_div_ss, _mm_maskz_div_ss): New intrinsics.
        * config/i386/i386-builtin-types.def (V2DF_FTYPE_V2DF_V2DF_V2DF_UQI_INT)
        (V4SF_FTYPE_V4SF_V4SF_V4SF_UQI_INT): New function type aliases.
        * config/i386/i386-builtin.def (__builtin_ia32_divsd_mask_round)
        (__builtin_ia32_divss_mask_round, __builtin_ia32_mulsd_mask_round)
        (__builtin_ia32_mulss_mask_round): New builtins.
        * config/i386/i386.c (V2DF_FTYPE_V2DF_V2DF_V2DF_UQI_INT)
        (V4SF_FTYPE_V4SF_V4SF_V4SF_UQI_INT): Handle new types.
        * config/i386/sse.md (<sse>_vm<multdiv_mnemonic><mode>3<round_name>):
        Rename to ...
        (<sse>_vm<multdiv_mnemonic><mode>3<mask_name><round_name>): ... this.
        (v<multdiv_mnemonic><ssescalarmodesuffix>\t{<round_op3>%2, %1, %0|%0, %1, %<iptr>2<round_op3>}):
        Change to ...
        (v<multdiv_mnemonic><ssescalarmodesuffix>\t{<round_mask_op3>%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %<iptr>2<round_mask_op3>}):
        ... this.

2017-05-10  Julia Koval  <julia.koval@intel.com>

        * config/i386/avxintrin.h (_mm256_set_m128, _mm256_set_m128d)
        (_mm256_set_m128i, _mm256_setr_m128, _mm256_setr_m128d)
        (_mm256_setr_m128i): New intrinsics.

2017-05-10  Julia Koval  <julia.koval@intel.com>

        * config/i386/avx512fintrin.h (_mm_mask_rcp14_sd)
        (_mm_maskz_rcp14_sd, _mm_mask_rcp14_ss)
        (_mm_maskz_rcp14_ss): New intrinsics.
        * config/i386/i386-builtin.def (__builtin_ia32_rcp14sd_mask)
        (__builtin_ia32_rcp14ss_mask): New builtins.
        * config/i386/sse.md (srcp14<mode>_mask): New pattern.

2017-05-10  Peter Bergner  <bergner@vnet.ibm.com>

        PR tree-optimization/51513
        * tree-cfg.c (gimple_seq_unreachable_p): New function.
        (assert_unreachable_fallthru_edge_p): Use it.
        (group_case_labels_stmt): Likewise.
        * tree-cfg.h: Prototype it.
        * stmt.c: Include cfghooks.h and tree-cfg.h.
        (emit_case_dispatch_table) <gap_label>: New local variable.
        Use it to fill dispatch table gaps.
        Test for default_label before updating probabilities.
        (expand_case) <default_label>: Remove unneeded initialization.
        Test for unreachable default case statement and remove its edge.
        Set default_label accordingly.
        * tree-ssa-ccp.c (optimize_unreachable): Update comment.

2017-05-10  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c: Add support for built-in functions
        vector signed char      vec_neg (vector signed char)
        vector signed short int vec_neg (vector short int)
        vector signed int       vec_neg (vector signed int)
        vector signed long long vec_neg (vector signed long long)
        vector float            vec_neg (vector float)
        vector double           vec_neg (vector double)
        * config/rs6000/rs6000-builtin.def: Add definitions for NEG function
        overload.
        * config/rs6000/altivec.h: Add define for vec_neg
        * doc/extend.texi: Update the built-in documentation for the
        new built-in functions.

2017-05-10  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR tree-optimization/77644
        * match.pd (sqrt(x) cmp sqrt(y) -> x cmp y): New pattern.

2017-05-10  Nathan Sidwell  <nathan@acm.org>

        * dumpfile.h (TDI_lang_all): New.
        (TDF_KIND): New. Renumber others
        (TDF_LANG, TDF_TREE, TDF_RTL, TDF_IPA): Enumerate value, rather
        than bits.
        * dumpfile.c (dump_files): Mark language dumps as TDF_LANG.  add
        lang-all.
        (get_dump_file_name): Adjust suffix generation.
        (dump_enable_all): Use TDF_KIND.
        * doc/invoke.texi (-fdump-lang-all): Document.

        * dumpfile.h: Tabify.

2017-05-10  Wilco Dijkstra  <wdijkstr@arm.com>

        PR target/80671
        * config/aarch64/cortex-a57-fma-steering.c (merge_forest):
        Move member access before delete.

2017-05-10  Alexandre Oliva  <aoliva@redhat.com>

        * tree-inline.c (expand_call_inline): Split block at stmt
        before the call.

2017-05-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/68163
        * config/rs6000/rs6000.md (f32_lr): Delete mode attributes that
        are now unused after splitting mov{sf,sd}_hardfloat.
        (f32_lr2): Likewise.
        (f32_lm): Likewise.
        (f32_lm2): Likewise.
        (f32_li): Likewise.
        (f32_li2): Likewise.
        (f32_lv): Likewise.
        (f32_sr): Likewise.
        (f32_sr2): Likewise.
        (f32_sm): Likewise.
        (f32_sm2): Likewise.
        (f32_si): Likewise.
        (f32_si2): Likewise.
        (f32_sv): Likewise.
        (f32_dm): Likewise.
        (f32_vsx): Likewise.
        (f32_av): Likewise.
        (mov<mode>_hardfloat): Split into separate movsf and movsd pieces.
        For movsf, order stores so the VSX stores occur before the GPR
        store which encourages the register allocator to use a traditional
        FPR instead of a GPR.  For movsd, order the stores so that the GPR
        store comes before the VSX stores to allow the power6 to work.
        This is due to the power6 not having a 32-bit integer store
        instruction from a FPR.
        (movsf_hardfloat): Likewise.
        (movsd_hardfloat): Likewise.

2017-05-09  Martin Sebor  <msebor@redhat.com>

        PR translation/80280
        * config/sol2-c.c (cmn_err_flag_specs): Initialize new data member
        added in r247778.

        PR translation/80280
        * config/i386/msformat-c.c (ms_printf_flag_specs): Initialize new
        data member added in r247778.
        (ms_scanf_flag_specs, ms_strftime_flag_specs): Same.

2017-05-09  Nathan Sidwell  <nathan@acm.org>

        * tree.h (tree_fits_shwi_p, tree_fits_uhwi_p): Unconditionally pure.

        * ipa-devirt.c (default_hash_traits<type_pair>): Skip struct-scope
        typedefs.

2017-05-09  Marek Polacek  <polacek@redhat.com>

        * doc/invoke.texi: Fix typo.

2017-05-09  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (vrp_val_is_max): Adjust comment.
        (vrp_val_is_min): Likewise.
        (set_value_range_to_value): Likewise.
        (set_value_range_to_nonnegative): Likewise.
        (gimple_assign_nonzero_p): Likewise.
        (gimple_stmt_nonzero_p): Likewise.
        (vrp_int_const_binop): Likewise.  Remove unreachable case.
        (adjust_range_with_scev): Adjust comments.
        (compare_range_with_value): Likewise.
        (extract_range_from_phi_node): Likewise.
        (test_for_singularity): Likewise.

2017-05-09  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (get_single_symbol): Add assert that we don't
        get overflowed constants as invariant part.
        (compare_values_warnv): Add comment before the TREE_NO_WARNING
        checks.  Use wi::cmp instead of recursing for integer constants.
        (compare_values): Just ignore whether we assumed undefined
        overflow instead of failing the compare.
        (extract_range_for_var_from_comparison_expr): Add comment before the
        TREE_NO_WARNING sets.
        (test_for_singularity): Likewise.
        (extract_range_from_comparison): Do not disable optimization
        when we assumed undefined overflow.
        (extract_range_basic): Remove init of unused var.

2017-05-09  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (vrp_int_const_binop): Use wide-ints and simplify.
        (extract_range_from_multiplicative_op_1): Adjust.
        (extract_range_from_binary_expr_1): Use int_const_binop.

2017-05-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        PR target/80101
        * config/rs6000/power6.md: Replace store_data_bypass_p calls with
        rs6000_store_data_bypass_p in seven define_bypass directives and
        in several comments.
        * config/rs6000/rs6000-protos.h: Add prototype for
        rs6000_store_data_bypass_p function.
        * config/rs6000/rs6000.c (rs6000_store_data_bypass_p): New
        function implements slightly different (rs6000-specific) semantics
        than store_data_bypass_p, returning false rather than aborting
        with assertion error when arguments do not satisfy the
        requirements of store data bypass.
        (rs6000_adjust_cost): Replace six calls of store_data_bypass_p with
        rs6000_store_data_bypass_p.

2017-05-08  Max Filippov  <jcmvbkbc@gmail.com>

        * config/xtensa/xtensa-protos.h
        (xtensa_initial_elimination_offset): New declaration.
        * config/xtensa/xtensa.c (xtensa_initial_elimination_offset):
        New function. Move its body from the INITIAL_ELIMINATION_OFFSET
        macro definition, add case for FRAME_POINTER_REGNUM when
        FRAME_GROWS_DOWNWARD.
        * config/xtensa/xtensa.h (FRAME_GROWS_DOWNWARD): New macro definition.
        (INITIAL_ELIMINATION_OFFSET): Replace body with call to
        xtensa_initial_elimination_offset.

2017-05-08  Nathan Sidwell  <nathan@acm.org>

        * doc/invoke.texi: Alphabetize -fdump options.

2017-05-08  Martin Sebor  <msebor@redhat.com>

        PR translation/80280
        * config/sol2-c.c (solaris_pragma_align): Correct quoting.

2017-05-08  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * target.def (compute_frame_layout): New optional target hook.
        * doc/tm.texi.in (TARGET_COMPUTE_FRAME_LAYOUT): Add hook.
        * doc/tm.texi (TARGET_COMPUTE_FRAME_LAYOUT): Add documentation.
        * lra-eliminations.c (update_reg_eliminate): Call compute_frame_layout
        target hook.
        * reload1.c (verify_initial_elim_offsets): Likewise.
        * config/arm/arm.c (TARGET_COMPUTE_FRAME_LAYOUT): Define.
        (use_simple_return_p): Call arm_compute_frame_layout if needed.
        (arm_get_frame_offsets): Split up into this ...
        (arm_compute_frame_layout): ... and this function.

2017-05-08  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/constraints.md (Usa): New constraint.
        * config/aarch64/aarch64.md (*movsi_aarch64, *movdi_aarch64): Use it.

2017-05-08  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config.gcc (arm*-*-*): Set TM_MULTILIB_CONFIG from
        with_multilib_list after it has been checked.

2017-05-08  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c (bitmap_set_and): Avoid bitmap copy.
        (bitmap_set_subtract_values): Likewise.

2017-05-08  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (gimple_assign_nonzero_warnv_p): Rename to ...
        (gimple_assign_nonzero): ... this and remove strict_overflow_p
        argument.
        (gimple_stmt_nonzero_warnv_p): Rename to ...
        (gimple_stmt_nonzero_p): ... this and remove strict_overflow_p
        argument.
        (vrp_stmt_computes_nonzero): Remove strict_overflow_p argument.
        (extract_range_basic): Adjust, do not disable propagation on
        strict overflow sensitive simplification.
        (vrp_visit_cond_stmt): Likewise.

2017-05-05  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline-analysis.c (estimate_function_body_sizes): Recompute
        body size unconditionally.

2017-05-07  Jeff Law  <law@redhat.com>

        Revert:
        2017-05-06  Jeff Law  <law@redhat.com>
        PR tree-optimization/78496
        * tree-vrp.c (simplify_assert_expr_using_ranges): Remove debugging
        code.

        PR tree-optimization/78496
        * tree-vrp.c (simplify_assert_expr_using_ranges): New function.
        (simplify_stmt_using_ranges): Call it.
        (vrp_dom_walker::before_dom_children): Extract equivalences
        from an ASSERT_EXPR with an equality comparison against a
        constant.

2017-05-06  Jeff Law  <law@redhat.com>

        PR tree-optimization/78496
        * tree-vrp.c (simplify_assert_expr_using_ranges): Remove debugging
        code.

        PR tree-optimization/78496
        * tree-vrp.c (simplify_assert_expr_using_ranges): New function.
        (simplify_stmt_using_ranges): Call it.
        (vrp_dom_walker::before_dom_children): Extract equivalences
        from an ASSERT_EXPR with an equality comparison against a
        constant.

2017-05-06  Richard Sandiford  <richard.sandiford@linaro.org>

        * lra-constraints.c (lra_copy_reg_equiv): New function.
        (split_reg): Use it to copy equivalence information from the
        original register to the spill register.

2017-05-06  Richard Sandiford  <richard.sandiford@linaro.org>

        PR rtl-optimization/75964
        * simplify-rtx.c (simplify_const_relational_operation): Remove
        invalid handling of comparisons of integer ABS.

2017-05-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ext_80387_constant_init): Do not explicitly
        initialize to zero.
        (init_regs): Remove declaration.
        (function_arg_advance_32): Initialize error_p as boolean variable.

2017-05-05  Nathan Sidwell  <nathan@acm.org>

        * store-motion.c (remove_reachable_equiv_notes): Reformat long
        lines.  Use for (;;).

2017-05-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_vect_nonmem): New static var.
        (rs6000_init_cost): Initialize rs6000_vect_nonmem.
        (rs6000_add_stmt_cost): Update rs6000_vect_nonmem.
        (rs6000_finish_cost): Avoid vectorizing simple copy loops with
        VF=2 that require versioning.

2017-05-05  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic.h (CARET_LINE_MARGIN): Convert from macro to const
        int.

2017-05-05  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic.h (diagnostic_override_option_index): Convert from
        macro to inline function.

2017-05-05  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic.c (last_module_changed_p): New function.
        (set_last_module): New function.
        (diagnostic_report_current_module): Convert macro usage to
        the above functions.
        * diagnostic.h (diagnostic_context::last_module): Strengthen
        from const line_map * to const line_map_ordinary *.
        (diagnostic_last_module_changed): Delete macro.
        (diagnostic_set_last_module): Delete macro.

2017-05-05  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic.c (diagnostic_impl): Replace report_diagnostic
        with diagnostic_report_diagnostic.
        (diagnostic_n_impl_richloc): Likewise.
        * diagnostic.h (report_diagnostic): Delete macro.
        * rtl-error.c (diagnostic_for_asm): Replace report_diagnostic
        with diagnostic_report_diagnostic.
        * substring-locations.c (format_warning_va): Likewise.

2017-05-05  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic.c (diagnostic_report_diagnostic): Eliminate
        save/restor of format_spec.  Move option-printing code to...
        (print_option_information): ...this new function, and
        reimplement by simply printing to the pretty_printer,
        rather than appending to the format string.

2017-05-05  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic.c (diagnostic_report_diagnostic): Split out pragma
        handling logic into...
        (update_effective_level_from_pragmas): ...this new function.

2017-05-04  Andrew Waterman  <andrew@sifive.com>

        * config/riscv/riscv.opt (mstrict-align): New option.
        * config/riscv/riscv.h (STRICT_ALIGNMENT): Use it.  Update comment.
        (SLOW_UNALIGNED_ACCESS): Define.
        (riscv_slow_unaligned_access): Declare.
        * config/riscv/riscv.c (riscv_tune_info): Add slow_unaligned_access
        field.
        (riscv_slow_unaligned_access): New variable.
        (rocket_tune_info): Set slow_unaligned_access to true.
        (optimize_size_tune_info): Set slow_unaligned_access to false.
        (riscv_cpu_info_table): Add entry for optimize_size_tune_info.
        (riscv_valid_lo_sum_p): Use TARGET_STRICT_ALIGN.
        (riscv_option_override): Set riscv_slow_unaligned_access.
        * doc/invoke.texi: Add -mstrict-align to RISC-V.

2017-05-04  Kito Cheng  <kito.cheng@gmail.com>

        * config/riscv/riscv.md: Unify indentation.

2017-05-05  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/79038
        PR target/79202
        PR target/79203
        * config/rs6000/rs6000.md (u code attribute): Add FIX and
        UNSIGNED_FIX.
        (extendsi<mode>2): Add support for doing sign extension via
        VUPKHSW and XXPERMDI if the value is in Altivec registers and we
        don't have ISA 3.0 instructions.
        (extendsi<mode>2 splitter): Likewise.
        (fix_trunc<mode>si2): If we are at ISA 2.07 (VSX small integer),
        generate the normal insns since SImode can now go in vector
        registers.  Disallow the special UNSPECs needed for previous
        machines to hide SImode being used.  Add new insns
        fctiw{,w}_<mode>_smallint if SImode can go in vector registers.
        (fix_trunc<mode>si2_stfiwx): Likewise.
        (fix_trunc<mode>si2_internal): Likewise.
        (fixuns_trunc<mode>si2): Likewise.
        (fixuns_trunc<mode>si2_stfiwx): Likewise.
        (fctiw<u>z_<mode>_smallint): Likewise.
        (fctiw<u>z_<mode>_mem): New combiner pattern to prevent conversion
        of floating point to 32-bit integer from doing a direct move to
        the GPR registers to do a store.
        (fctiwz_<mode>): Break long line.

2017-05-05  Bin Cheng  <bin.cheng@arm.com>

        * Makefile.in (GTFILES): Add tree-ssa-loop-ivopts.c.
        * tree-ssa-loop-ivopts.c (compute_max_addr_offset): Delete.
        (addr_list, addr_offset_valid_p): New.
        (split_address_groups): Check offset validity with above function.
        (gt-tree-ssa-loop-ivopts.h): Include header file.

2017-05-05  Nathan Sidwell  <nathan@acm.org>

        * config.gcc (arm*-*-*): Add missing 'fi'.

2017-05-05  Steve Ellcey  <sellcey@cavium.com>

        * doc/invoke.texi (-fopt-info): Explicitly say order of options
        included in -fopt-info does not matter.
        * doc/optinfo.texi (-fopt-info): Fix description of default
        behavour. Explicitly say order of options included in -fopt-info
        does not matter.

2017-05-05  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config.gcc: Allow combinations of aprofile and rmprofile values for
        --with-multilib-list.
        * config/arm/t-multilib: New file.
        * config/arm/t-aprofile: Remove initialization of MULTILIB_*
        variables.  Remove setting of ISA and floating-point ABI in
        MULTILIB_OPTIONS and MULTILIB_DIRNAMES.  Set architecture and FPU in
        MULTI_ARCH_OPTS_A and MULTI_ARCH_DIRS_A rather than MULTILIB_OPTIONS
        and MULTILIB_DIRNAMES respectively.  Add comment to introduce all
        matches.  Add architecture matches for marvel-pj4 and generic-armv7-a
        CPU options.
        * config/arm/t-rmprofile: Likewise except for the matches changes.
        * doc/install.texi (--with-multilib-list): Document the combination of
        aprofile and rmprofile values and warn about pitfalls in doing that.

2017-05-05  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.md (movsi_aarch64): Remove '*' from r=w.
        (movdi_aarch64): Likewise.

2017-05-05  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/80632
        * tree-switch-conversion.c (struct switch_conv_info): Add target_vop
        field.
        (build_arrays): Initialize it for virtual phis.
        (fix_phi_nodes): Use it for virtual phis.

        PR tree-optimization/80558
        * tree-vrp.c (extract_range_from_binary_expr_1): Optimize
        [x, y] op z into [x op, y op z] for op & or | if conditions
        are met.

2017-05-05  Andre Vieira  <andre.simoesdiasvieira@arm.com>
            Prakhar Bahuguna  <prakhar.bahuguna@arm.com>

        PR target/71607
        * config/arm/arm.md (use_literal_pool): Remove.
        (64-bit immediate split): No longer takes cost into consideration
        if arm_disable_literal_pool is enabled.
        * config/arm/arm.c (arm_tls_referenced_p): Add diagnostic if TLS is
        used when arm_disable_literal_pool is enabled.
        (arm_max_const_double_inline_cost): Remove use of
        arm_disable_literal_pool.
        (push_minipool_fix): Add assert.
        (arm_reorg): Add return if arm_disable_literal_pool is enabled.
        * config/arm/vfp.md (no_literal_pool_df_immediate): New.
        (no_literal_pool_sf_immediate): New.

2017-05-05  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR tree-optimization/80613
        * tree-ssa-dce.c (propagate_necessity): Remove cases for
        BUILT_IN_STRDUP and BUILT_IN_STRNDUP.

2017-05-05  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c (get_or_alloc_expr_for): Simplify.

2017-05-05  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md [flag_strict_overflow]: Remove any occurence
        of this flag from insn conditions due to removal from r247495.

2017-05-05  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/aarch-common.c (arm_early_load_addr_dep_ptr):
        New function.
        (arm_early_store_addr_dep_ptr): Likewise.
        * config/arm/aarch-common-protos.h
        (arm_early_load_addr_dep_ptr): Add prototype.
        (arm_early_store_addr_dep_ptr): Likewise.
        * config/arm/cortex-a53.md: Add new bypasses.

2017-05-05  Jakub Jelinek  <jakub@redhat.com>

        * tree.c (next_type_uid): Change type to unsigned.
        (type_hash_canon): Decrement back next_type_uid if
        freeing a type node with the highest TYPE_UID.  For INTEGER_TYPEs
        also ggc_free TYPE_MIN_VALUE, TYPE_MAX_VALUE and TYPE_CACHED_VALUES
        if possible.

2017-05-04  Martin Sebor  <msebor@redhat.com>

        * builtins.c: Fix a trivial typo in a comment.

        PR middle-end/79234
        * builtins.c (check_sizes): Adjust to handle reading past the end.
        Avoid printing excessive upper bound of ranges.  Use %E to print
        tree nodes instead of converting them to %wu.
        (expand_builtin_memchr): New function.
        (compute_dest_size): Rename...
        (compute_objsize): ...to this.
        (expand_builtin_memcpy): Adjust.
        (expand_builtin_mempcpy): Adjust.
        (expand_builtin_strcat): Adjust.
        (expand_builtin_strcpy): Adjust.
        (check_strncat_sizes): Adjust.
        (expand_builtin_strncat): Adjust.
        (expand_builtin_strncpy): Adjust and simplify.
        (expand_builtin_memset): Adjust.
        (expand_builtin_bzero): Adjust.
        (expand_builtin_memcmp): Adjust.
        (expand_builtin): Handle memcmp.
        (maybe_emit_chk_warning): Check strncat just once.

2017-05-04  Martin Sebor  <msebor@redhat.com>

        PR preprocessor/79214
        PR middle-end/79222
        PR middle-end/79223
        * builtins.c (check_sizes): Add inlining context and issue
        warnings even when -Wno-system-headers is set.
        (check_strncat_sizes): Same.
        (expand_builtin_strncat): Same.
        (expand_builtin_memmove): New function.
        (expand_builtin_stpncpy): Same.
        (expand_builtin): Handle memmove and stpncpy.

2017-05-04  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (struct cost_pair): Remove field inv_expr
        which is not used any more.

2017-05-04  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (generic_tunings): Update prefetch model.

2017-05-04  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (cortexa35_tunings): Set jump alignment to 4.
        (cortexa53_tunings): Likewise.
        (cortexa57_tunings): Likewise.
        (cortexa72_tunings): Likewise.
        (cortexa73_tunings): Likewise.

2017-05-04  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (generic_tunings): Set jump alignment to 4.
        Set loop alignment to 8.

2017-05-04  Martin Sebor  <msebor@redhat.com>

        PR translation/80280
        * builtins.c (expand_builtin_object_size): Add missing quoting to
        %D and like directives.
        * hsa-gen.c (hsa_type_for_scalar_tree_type): Same.
        (hsa_type_for_tree_type): Same.
        (verify_function_arguments): Same.
        * symtab.c (symbol_table::change_decl_assembler_name): Same.
        * varasm.c (get_section): Same.
        (mark_weak): Same.

2017-05-04  Martin Sebor  <msebor@redhat.com>

        PR translation/80280
        * config/i386/i386.c (ix86_function_versions): Quote a %D directive.

2017-05-04  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (generic_addrcost_table):
        Change HI/TI mode setting.

2017-05-04  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/80622
        * tree-sra.c (comes_initialized_p): New function.
        (build_accesses_from_assign): Only set write lazily when
        comes_initialized_p is false.
        (analyze_access_subtree): Use comes_initialized_p.
        (propagate_subaccesses_across_link): Assert !comes_initialized_p
        instead of testing for PARM_DECL.

2017-05-04  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.md (prefetch); Adjust predicate and
        constraint on operand 0 to allow more general addressing modes.
        Adjust output template.
        * config/aarch64/aarch64.c (aarch64_address_valid_for_prefetch_p):
        New function.
        * config/aarch64/aarch64-protos.h
        (aarch64_address_valid_for_prefetch_p): Declare prototype.
        * config/aarch64/constraints.md (Dp): New address constraint.
        * config/aarch64/predicates.md (aarch64_prefetch_operand): New
        predicate.

2017-05-04  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-cp.c (perform_estimation_of_a_value): Drop base_time parameter;
        update use of estimate_ipcp_clone_size_and_time.
        (estimate_local_effects): Update use of
        estimate_ipcp_clone_size_and_time and perform_estimation_of_a_value.
        * ipa-inline.h (estimate_ipcp_clone_size_and_time): Update prototype.
        * ipa-inline-analysis.c (estimate_ipcp_clone_size_and_time):
        Return nonspecialized time.

2017-05-04  Richard Biener  <rguenther@suse.de>

        * tree-ssa-alias.c (get_continuation_for_phi): Improve looking
        for the last VUSE which def dominates the PHI.  Directly call
        maybe_skip_until.
        (get_continuation_for_phi_1): Remove.

2017-05-04  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-ssa-loop-manip.c (niter_for_unrolled_loop): Add commentary
        to explain the use of truncating division.  Cap the number of
        iterations to the maximum given by nb_iterations_upper_bound,
        if defined.

2017-05-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * configure.ac (--enable-mingw-wildcard): Add new configurable feature.
        * configure: Regenerate.
        * config.in: Regenerate.
        * config/i386/driver-mingw32.c: new file.
        * config/i386/x-mingw32: Add rule to build driver-mingw32.o.
        * config.host: Link driver-mingw32.o on MinGW host.
        * doc/install.texi: Document new --enable-mingw-wildcard configure
        option.

2017-05-04  Marek Polacek  <polacek@redhat.com>

        PR tree-optimization/80612
        * calls.c (get_size_range): Check for INTEGRAL_TYPE_P.

2017-05-04  Prakhar Bahuguna  <prakhar.bahuguna@arm.com>
            Andre Simoes Dias Vieira  <andre.simoesdiasvieira@arm.com>

        * config/arm/arm.md (movsi): Change TARGET_32BIT to TARGET_HAVE_MOVT.
        (movt splitter): Likewise.
        * config/arm/arm.c (arm_option_check_internal): Change arm_arch_thumb2
        to TARGET_HAVE_MOVT, and merge with -mslow-flash-data check.
        (const_ok_for_arm): Change else to else if (TARGET_THUMB2) and add else
        block for Thumb-1 with MOVT.
        (thumb2_legitimate_address_p): Move code block ...
        (can_avoid_literal_pool_for_label_p): ... into this new function.
        (thumb1_legitimate_address_p): Add check for TARGET_HAVE_MOVT and
        literal pool.
        (thumb_legitimate_constant_p): Add conditional on TARGET_HAVE_MOVT
        * doc/invoke.texi (-mpure-code): Change "ARMv7-M targets" for
        "M-profile targets with the MOVT instruction".

2017-05-04  Prakhar Bahuguna  <prakhar.bahuguna@arm.com>

        * config/arm/arm-builtins.c (arm_init_builtins): Rename
        __builtin_arm_ldfscr to __builtin_arm_get_fpscr, and rename
        __builtin_arm_stfscr to __builtin_arm_set_fpscr.

2017-05-04  Martin Liska  <mliska@suse.cz>

        * tree-vrp.c (simplify_cond_using_ranges_2): Remove unused
        variable cond_code.

2017-05-04  Richard Biener  <rguenther@suse.de>

        * tree.c (array_at_struct_end_p): Handle arrays at struct
        end with flexarrays more conservatively.  Refactor and treat
        arrays of arrays or aggregates more strict.  Fix
        VIEW_CONVERT_EXPR handling.  Remove allow_compref argument.
        * tree.c (array_at_struct_end_p): Adjust prototype.
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Adjust.
        * gimple-fold.c (get_range_strlen): Likewise.
        * tree-chkp.c (chkp_may_narrow_to_field): Likewise.

2017-05-04  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/31130
        * tree-vrp.c (needs_overflow_infinity): Remove as always returning
        false.
        (supports_overflow_infinity): Likewise.
        (is_negative_overflow_infinity): Likewise.
        (is_positive_overflow_infinity): Likewise.
        (is_overflow_infinity): Likewise.
        (stmt_overflow_infinity): Likewise.
        (overflow_infinity_range_p): Likewise.
        (usable_range_p): Remove as always returning true.
        (make_overflow_infinity): Remove.
        (negative_overflow_infinity): Likewise.
        (positive_overflow_infinity): Likewise.
        (avoid_overflow_infinity): Likewise.
        (set_value_range): Adjust accordingly.
        (set_value_range_to_nonnegative): Likewise, remove now unused
        overflow_infinity arg.
        (vrp_operand_equal_p): Adjust.
        (update_value_range): Likewise.
        (range_int_cst_singleton_p): Likewise.
        (operand_less_p): Likewise.
        (compare_values_warnv): Likewise.
        (extract_range_for_var_from_comparison_expr): Likewise.
        (vrp_int_const_binop): Likewise.
        (zero_nonzero_bits_from_vr): Likewise.
        (extract_range_from_multiplicative_op_1): Likewise.
        (extract_range_from_binary_expr_1): Likewise.
        (extract_range_from_unary_expr): Likewise.
        (extract_range_from_comparison): Likewise.
        (extract_range_basic): Likewise.
        (adjust_range_with_scev): Likewise.
        (compare_ranges): Likewise.
        (compare_range_with_value): Likewise.
        (dump_value_range): Likewise.
        (test_for_singularity): Likewise, remove strict_overflow_p parameter
        never used.
        (simplify_cond_using_ranges): Adjust.

2017-05-04  Pekka Jääskeläinen  <pekka.jaaskelainen@parmance.com>

        * brig-builtins.def: Added a builtin for class_f64.
        * builtin-types.def: Added a builtin type needed by class_f64.

2017-05-03  Jason Merrill  <jason@redhat.com>

        * timevar.def: Add TV_CONSTEXPR.

2017-05-03  David Malcolm  <dmalcolm@redhat.com>

        * common.opt (fdiagnostics-parseable-fixits): Fix typo.

2017-05-03  Martin Jambor  <mjambor@suse.cz>

        * ipa-prop.c (ipa_update_after_lto_read): Removed.
        * ipa-prop.h (ipa_update_after_lto_read): Remove declaration.
        * ipa-cp.c (ipcp_propagate_stage): Do not call
        ipa_update_after_lto_read.
        * ipa-inline.c (ipa_inline): Likewise.

2017-05-03  Martin Jambor  <mjambor@suse.cz>

        * ipa-prop.h (ipa_edge_args): Make a class.  Mark with for_user GTY
        tag.  Added a default constructor and a destructor.
        (ipa_edge_args_sum_t): New class;
        (ipa_edge_args_sum): Declare.
        (ipa_edge_args_vector): Remove declaration.
        (IPA_EDGE_REF): Use ipa_edge_args_sum.
        (ipa_free_edge_args_substructures): Remove declaration.
        (ipa_check_create_edge_args): Use ipa_edge_args_sum.
        (ipa_edge_args_info_available_for_edge_p): Likewise.
        * ipa-prop.c (ipa_edge_args_vector): Removed.
        (edge_removal_hook_holder): Likewise.
        (edge_duplication_hook_holder): Likewise.
        (ipa_edge_args_sum): New variable.
        (ipa_propagate_indirect_call_infos): Test ipa_edge_args_sum instead of
        ipa_edge_args_vector.
        (ipa_free_edge_args_substructures): Likewise.
        (ipa_free_all_edge_args): Free ipa_edge_args_sum instead of
        ipa_edge_args_vector.
        (ipa_edge_removal_hook): Turned into method
        ipa_edge_args_sum_t::remove.
        (ipa_edge_duplication_hook): Turned into method
        ipa_edge_args_sum_t::duplicate.
        (ipa_register_cgraph_hooks): Create ipa_edge_args_sum instead of
        registering edge hooks.
        (ipa_unregister_cgraph_hooks): Do not unregister edge hooks.
        * ipa-inline-analysis.c (estimate_function_body_sizes): Test
        ipa_edge_args_sum instead of ipa_edge_args_vector.
        * ipa-profile.c (ipa_profile): Likewise.

2017-05-03  Martin Jambor  <mjambor@suse.cz>

        * symbol-summary.h (function_summary): New method exists.
        (function_summary::symtab_removal): Deallocate through release.
        (call_summary): New class.
        (gt_ggc_mx): New overload.
        (gt_pch_nx): Likewise.
        (gt_pch_nx): Likewise.

2017-05-03  Jeff Law  <law@redhat.com>

        PR tree-optimization/78496
        * tree-vrp.c (simplify_cond_using_ranges_1): Renamed
        from simplify_cond_using_ranges.  Split off code to walk
        backwards through casts into ...
        (simplify_cond_using_ranges_2): New function.
        (simplify_stmt_using_ranges): Call simplify_cond_using_ranges_1.
        (execute_vrp): After identifying jump threads, call
        simplify_cond_using_ranges_2.

2017-05-03  Jan Hubicka  <hubicka@ucw.cz>

        PR bootstrap/80609
        * ipa-inline.h (inline_summary): Add ctor.
        (create_ggc): Do not use ggc_cleared_alloc.

2017-05-03  Jeff Downs  <heydowns@somuchpressure.net>
            Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * gcc.c (handle_braces): Support escaping in switch matching
        text.
        * doc/invoke.texi (Spec Files): Document it.
        Remove superfluous @code markup in items.

2017-05-03  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c (struct column_range): New struct.
        (get_affected_columns): New function.
        (get_printed_columns): New function.
        (struct correction): New struct.
        (correction::ensure_capacity): New function.
        (correction::ensure_terminated): New function.
        (struct line_corrections): New struct.
        (line_corrections::~line_corrections): New dtor.
        (line_corrections::add_hint): New function.
        (layout::print_trailing_fixits): Reimplement in terms of the new
        classes.
        (selftest::test_overlapped_fixit_printing): New function.
        (selftest::diagnostic_show_locus_c_tests): Call it.

2017-05-03  Nathan Sidwell  <nathan@acm.org>

        Canonicalize canonical type hashing
        * tree.h (type_hash_canon_hash): Declare.
        * tree.c (type_hash_list, attribute_hash_list): Move into
        type_hash_canon_hash.
        (build_type_attribute_qual_variant): Break out hash code calc into
        type_hash_canon_hash.
        (type_hash_canon_hash): New.  Generic type hash computation.
        (build_range_type_1, build_array_type_1, build_function_type,
        build_method_type_directly, build_offset_type, build_complex_type,
        make_vector_type): Call it.

2017-05-03  Richard Biener  <rguenther@suse.de>

        * tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
        When all DRs have unknown misaligned do not always peel
        when there is a store but apply the same costing model as if
        there were only loads.

2017-05-03  Richard Biener  <rguenther@suse.de>

        Revert
        PR tree-optimization/80492
        * tree-ssa-alias.c (decl_refs_may_alias_p): Handle
        compare_base_decls returning dont-know properly.

2017-05-03  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/iterators.md (CCSI): New mode iterator.
        (arch): New mode attribute.
        * config/arm/sync.md (atomic_compare_and_swap<mode>_1): Rename into ...
        (atomic_compare_and_swap<CCSI:arch><NARROW:mode>_1): This and ...
        (atomic_compare_and_swap<CCSI:arch><SIDI:mode>_1): This.  Use CCSI
        code iterator for success result mode.
        * config/arm/arm.c (arm_expand_compare_and_swap): Adapt code to use
        the corresponding new insn generators.

2017-05-03  Bin Cheng  <bin.cheng@arm.com>

        Revert r247509
        2017-05-02  Bin Cheng  <bin.cheng@arm.com>
        * rtlanal.c (rtx_cost): Handle TRUNCATE between tieable modes.

2017-05-03  Richard Sandiford  <richard.sandiford@linaro.org>

        * tree-data-ref.h (SUB_CONFLICTS_IN_A): Wrap SUB argument in brackets.
        (SUB_CONFLICTS_IN_B, SUB_LAST_CONFLICT, SUB_DISTANCE): Likewise.
        (DDR_A): Wrap DDR argument in brackets.
        (DDR_B, DDR_AFFINE_P, DDR_ARE_DEPENDENT, DDR_SUBSCRIPTS): Likewise.
        (DDR_LOOP_NEST, DDR_INNER_LOOP, DDR_SELF_REFERENCE): Likewise.
        (DDR_REVERSED_P): Likewise.

2017-05-03  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79472
        * tree-switch-conversion.c (struct switch_conv_info): Add
        contiguous_range and default_case_nonstandard fields.
        (collect_switch_conv_info): Compute contiguous_range and
        default_case_nonstandard fields, don't clear final_bb if
        contiguous_range and only the default case doesn't have the required
        structure.
        (check_all_empty_except_final): Set default_case_nonstandard instead
        of failing if contiguous_range and the default case doesn't have empty
        block.
        (check_final_bb): Add SWTCH argument, don't fail if contiguous_range
        and only the default case doesn't have the required constants.  Skip
        virtual phis.
        (gather_default_values): Skip virtual phis.  Allow non-NULL CASE_LOW
        if default_case_nonstandard.
        (build_constructors): Build constant 1 just once.  Assert that default
        values aren't inserted in between cases if contiguous_range.  Skip
        virtual phis.
        (build_arrays): Skip virtual phis.
        (prune_bbs): Add DEFAULT_BB argument, don't remove that bb.
        (fix_phi_nodes): Don't add e2f phi arg if default_case_nonstandard.
        Handle virtual phis.
        (gen_inbound_check): Handle default_case_nonstandard case.
        (process_switch): Adjust check_final_bb caller.  Call
        gather_default_values with the first non-default case instead of
        default case if default_case_nonstandard.

2017-05-02  Nathan Sidwell  <nathan@acm.org>

        * ggc-page.c (move_ptes_to_front): Replace unsigned >0 with i--
        check.  Fix formatting.

2017-05-02  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline-analysis.c (estimate_node_size_and_time): Allow roundoff
        errors when comparing specialized and unspecialized times.

2017-05-02  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c
        (layout::should_print_annotation_line_p): Make private.
        (layout::print_annotation_line): Make private.
        (layout::annotation_line_showed_range_p): Make private.
        (layout::show_ruler): Make private.
        (layout::print_source_line): Make private.  Pass in line and
        line_width, rather than calling location_get_source_line.  Drop
        returned value.
        (layout::print_leading_fixits): New method.
        (layout::print_any_fixits): Rename to...
        (layout::print_trailing_fixits): ...this, and make private.
        Don't print newline fixits.
        (diagnostic_show_locus): Move logic for printing one row into...
        (layout::print_line): ...this new function.  Move the
        location_get_source_line call and error-handling from
        print_source_line to here.  Call print_leading_fixits, and rename
        print_any_fixits to print_trailing_fixits.
        (selftest::test_fixit_insert_containing_newline): Update now that
        newlines are partially supported.
        (selftest::test_fixit_insert_containing_newline_2): New test.
        (selftest::test_fixit_replace_containing_newline): Update comments.
        (selftest::diagnostic_show_locus_c_tests): Call the new test.
        * edit-context.c (class added_line): New class.
        (class edited_line): Describe newline handling in comment.
        (edited_line::actually_edited_p): New method.
        (edited_line::print_content): Delete redundant decl.
        (edited_line::m_predecessors): New field.
        (edited_file::print_content): Call edited_line::print_content.
        (edited_file::print_diff): Update to support newlines.
        (edited_file::print_diff_hunk): Likewise.
        (edited_file::print_run_of_changed_lines): New function.
        (edited_file::print_diff_line): Convert to...
        (print_diff_line): ...this.
        (edited_file::get_effective_line_count): New function.
        (edited_line::edited_line): Initialize new field m_predecessors.
        (edited_line::~edited_line): Clean up m_predecessors.
        (edited_line::apply_fixit): Handle newlines.
        (edited_line::get_effective_line_count): New function.
        (edited_line::print_content): New function.
        (edited_line::print_diff_lines): New function.
        (selftest::test_applying_fixits_insert_containing_newline): New
        test.
        (selftest::test_applying_fixits_replace_containing_newline): New
        test.
        (selftest::insert_line): New function.
        (selftest::test_applying_fixits_multiple_lines): Add example of
        inserting a line.
        (selftest::edit_context_c_tests): Call the new tests.

2017-05-02  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (get_scaled_computation_cost_at): Delete
        parameter cand.  Update dump information.
        (get_computation_cost): Update uses.

2017-05-02  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (get_computation_aff_1): New.
        (get_computation_aff): Reorder parameters.  Use get_computation_aff_1.
        (get_computation_at, rewrite_use_address): Update use of
        get_computation_aff.

2017-05-02  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (get_computation_at): Reorder parameters.
        (get_computation): Delete.
        (get_computation_cost): Implement like get_computation_cost_at.
        Use get_computation_at.
        (get_computation_cost_at): Delete.
        (rewrite_use_nonlinear_expr): Use get_computation_at.
        (rewrite_use_compare, remove_unused_ivs): Ditto.

2017-05-02  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (rewrite_use_address): Simple refactor.

2017-05-02  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (struct iv_ca): Rename n_regs to n_invs.
        (ivopts_global_cost_for_size): Rename parameter and update uses.
        (iv_ca_recount_cost): Update uses.
        (iv_ca_set_remove_invs, iv_ca_set_no_cp): Record invariants and
        candidates seperately in n_invs and n_cands.
        (iv_ca_set_add_invs, iv_ca_set_cp, iv_ca_new): Ditto.

2017-05-02  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (struct walk_tree_data): New.
        (find_inv_vars_cb): New.
        (find_depends): Renamed to ...
        (find_inv_vars): ... this.
        (add_candidate_1, force_var_cost): Call find_inv_vars.
        (split_address_cost, determine_group_iv_cost_cond): Ditto.

2017-05-02  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (struct cost_pair): Rename depends_on to
        inv_vars.  Add inv_exprs.
        (struct iv_cand): Rename depends_on to inv_vars.
        (struct ivopts_data): Rename max_inv_id/n_invariant_uses to
        max_inv_var_id/n_inv_var_uses.  Move max_inv_expr_id around.
        Refactor field used_inv_exprs from has_map to array n_inv_expr_uses.
        (dump_cand): Dump inv_vars.
        (tree_ssa_iv_optimize_init): Support inv_vars and inv_exprs.
        (record_invariant, find_depends, add_candidate_1): Ditto.
        (set_group_iv_cost, force_var_cost): Ditto.
        (split_address_cost, ptr_difference_cost, difference_cost): Ditto.
        (get_computation_cost_at, get_computation_cost): Ditto.
        (determine_group_iv_cost_generic): Ditto.
        (determine_group_iv_cost_address): Ditto.
        (determine_group_iv_cost_cond, autoinc_possible_for_pair): Ditto.
        (determine_group_iv_costs): Ditto.
        (iv_ca_recount_cost): Update call to ivopts_global_cost_for_size.
        (iv_ca_set_remove_invariants): Renamed to ...
        (iv_ca_set_remove_invs): ... this.  Support inv_vars and inv_exprs.
        (iv_ca_set_no_cp): Use iv_ca_set_remove_invs.
        (iv_ca_set_add_invariants):  Renamed to ...
        (iv_ca_set_add_invs): ... this.  Support inv_vars and inv_exprs.
        (iv_ca_set_cp): Use iv_ca_set_add_invs.
        (iv_ca_has_deps): Support inv_vars and inv_exprs.
        (iv_ca_new, iv_ca_free, iv_ca_dump, free_loop_data): Ditto.
        (create_new_ivs): Remove useless dump.

2017-05-02  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (get_computation_cost_at): Remove pseudo
        iv_cand code.
        (determine_group_iv_cost_cond, determine_iv_cost): Ditto.
        (iv_ca_set_no_cp, create_new_iv): Ditto.

2017-05-02  Bin Cheng  <bin.cheng@arm.com>

        * rtlanal.c (rtx_cost): Handle TRUNCATE between tieable modes.

2017-05-02  Xi Ruoyao  <ryxi@stu.xidian.edu.cn>

        * tree.h (EXPR_CILK_SPAWN): Use macro TREE_CHECK2 instead of
        function tree_check2.

2017-05-02  Martin Liska  <mliska@suse.cz>

        * doc/gcov.texi: Add missing preposition.
        * gcov.c (function_info::function_info): Properly fill up
        all member variables.

2017-05-02  Tamar Christina  <tamar.christina@arm.com>

        * expr.c (expand_expr_real_2): Re-cost if previous costs are the same.

2017-05-02  Tamar Christina  <tamar.christina@arm.com>

        * simplify-rtx.c (simplify_binary_operation_1): Add LSHIFTRT case.

2017-05-02  Martin Liska  <mliska@suse.cz>

        PR lto/77954.
        * lto-streamer-in.c (lto_read_tree_1): Remove
        LTO_STREAMER_DEBUG.
        * lto-streamer.c (struct tree_hash_entry): Likewise.
        (struct tree_entry_hasher): Likewise.
        (tree_entry_hasher::hash): Likewise.
        (tree_entry_hasher::equal): Likewise.
        (lto_streamer_init): Likewise.
        (lto_orig_address_map): Likewise.
        (lto_orig_address_get): Likewise.
        (lto_orig_address_remove): Likewise.
        * lto-streamer.h: Likewise.
        * tree-streamer-in.c (streamer_alloc_tree): Likewise.
        * tree-streamer-out.c (streamer_write_tree_header): Likewise.

2017-05-02  Sebastian Peryt  <sebastian.peryt@intel.com>

        * config/i386/avx512fintrin.h (_mm_mask_add_round_sd)
        (_mm_maskz_add_round_sd, _mm_mask_add_round_ss)
        (mm_maskz_add_round_ss, _mm_mask_sub_round_sd)
        (mm_maskz_sub_round_sd, _mm_mask_sub_round_ss)
        (mm_maskz_sub_round_ss, _mm_mask_add_sd)
        (mm_maskz_add_sd, _mm_mask_add_ss, _mm_maskz_add_ss)
        (mm_mask_sub_sd, _mm_maskz_sub_sd, _mm_mask_sub_ss)
        (mm_maskz_sub_ss): New intrinsics.
        * config/i386/i386-builtin-types.def (V2DF_FTYPE_V2DF_V2DF_V2DF_UQI_INT)
        (V4SF_FTYPE_V4SF_V4SF_V4SF_UQI_INT): New function type aliases.
        * config/i386/i386-builtin.def (__builtin_ia32_addsd_mask_round)
        (__builtin_ia32_addss_mask_round, __builtin_ia32_subsd_mask_round)
        (__builtin_ia32_subss_mask_round): New builtins.
        * config/i386/i386.c (V2DF_FTYPE_V2DF_V2DF_V2DF_UQI_INT)
        (V4SF_FTYPE_V4SF_V4SF_V4SF_UQI_INT): Handle new types.
        * config/i386/sse.md (<sse>_vm<plusminus_insn><mode>3<round_name>):
        Renamed to ...
        (<sse>_vm<plusminus_insn><mode>3<mask_name><round_name>): ... this.
        (v<plusminus_mnemonic><ssescalarmodesuffix>\t{<round_op3>%2, %1, %0|%0, %1, %<iptr>2<round_op3>}):
        Changed to ...
        (v<plusminus_mnemonic><ssescalarmodesuffix>\t{<round_mask_op3>%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %<iptr>2<round_mask_op3>}):
        ... this.

2017-05-02  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/78687
        * tree-sra.c (access): New field parent.
        (process_subtree_disqualification): New function.
        (disqualify_candidate): Call it.
        (build_accesses_from_assign): Reset write flag if creating an
        assighnment link.
        (build_access_subtree): Fill in parent field and also prpagate
        down grp_write flag.
        (create_artificial_child_access): New parameter set_grp_write, set
        grp_write to its value.
        (propagate_subaccesses_across_link): Also propagate grp_write flag
        values.
        (propagate_all_subaccesses): Push the closest parent back to work
        queue if add_access_to_work_queue returned true.

2017-05-02  Richard Biener  <rguenther@suse.de>

        * common.opt (fstrict-overflow): Alias negative to fwrapv.
        * doc/invoke.texi (fstrict-overflow): Remove all traces of
        -fstrict-overflow documentation.
        * tree.h (TYPE_OVERFLOW_UNDEFINED): Do not test flag_strict_overflow.
        (POINTER_TYPE_OVERFLOW_UNDEFINED): Test !flag_wrapv instead of
        flag_strict_overflow.
        * ipa-inline.c (can_inline_edge_p): Do not test flag_strict_overflow.
        * lto-opts.c (lto_write_options): Do not stream it.
        * lto-wrapper.c (merge_and_complain): Do not handle it.
        * opts.c (default_options_table): Do not set -fstrict-overflow.
        (finish_options): Likewise do not clear it when sanitizing.
        * simplify-rtx.c (simplify_const_relational_operation): Do not
        test flag_strict_overflow.

2017-05-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.md (*add<mode>3_ieee): Merge to add<mode>3
        using enabled attribute.
        (*sub<mode>3_ieee): Merge to sub<mode>3 using enabled attribute.
        (*mul<mode>3_ieee): Merge to mul<mode>3 using enabled attribute.
        (*div<mode>3_ieee): Merge to div<mode>3 using enabled attribute.
        (*sqrt<mode>2_ieee): Merge to sqrt<mode>2 using enabled attribute.
        (*fix_truncdfdi_ieee): Merge to *fix_truncdfdi2 using enabled attribute.
        (*fix_truncsfdi_ieee): Merge to *fix_truncsfdi2 using enabled attribute.
        (*floatdisf_ieee): Merge to floatdisf2 using enabled attribute.
        (*floatdidf_ieee): Merge to floatdidf2 using enabled attribute.
        (*truncdfsf2_ieee): Merge to truncdfsf2 using enabled attribute.
        (*cmpdf_ieee): Merge to *cmpdf_internal using enabled attribute.

2017-05-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_code_end): Use {FIRST,LAST}_INT_REG.

2017-05-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80591
        Revert
        2017-04-10  Richard Biener  <rguenther@suse.de>

        * tree-ssa-structalias.c (find_func_aliases): Properly handle
        asm inputs.

2017-05-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80549
        * tree-cfgcleanup.c (mfb_keep_latches): New helper.
        (cleanup_tree_cfg_noloop): Create forwarders to known loop
        headers if they do not have a preheader.

2017-05-02  Martin Liska  <mliska@suse.cz>

        PR other/80589
        * common.opt: Fix typo.
        * doc/invoke.texi: Likewise.

2017-05-01  Jan Beulich  <jbeulich@suse.com>

        * config/i386/sse.md (xop_vpermil2<mode>3): Do not allow operand
        swapping, add (x,x,m,x,n) alternative.

2017-05-01  Nathan Sidwell  <nathan@acm.org>

        * calls.c (combine_pending_stack_adjustment_and_call): Remove
        unnecessary unadjusted_alignment check.

2017-05-01  Xi Ruoyao  <ryxi@stu.xidian.edu.cn>

        PR c++/80038
        * cilk_common.c (expand_builtin_cilk_detach): Move pedigree
        operations here.
        * gimplify.c (gimplify_cilk_detach): New function.
        (gimplify_call_expr, gimplify_modify_expr): Call it as needed.
        * tree-core.h: Document EXPR_CILK_SPAWN.
        * tree.h (EXPR_CILK_SPAWN): Define.

2017-05-01  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c (layout::get_expanded_location): Rewrite
        to use new fixit_hint representation, using the "replace" logic.
        (get_line_span_for_fixit_hint): Likewise.
        (layout::print_any_fixits): Likewise.
        (selftest::test_one_liner_many_fixits): Rename to...
        (selftest::test_one_liner_many_fixits_1): ...this, and update
        comment and expected output to reflect that the multiple fix-it
        hints are now consolidated into one insertion.
        (selftest::test_one_liner_many_fixits_2): New test.
        (selftest::test_diagnostic_show_locus_one_liner): Update for
        above.
        (selftest::test_fixit_consolidation): Update for fix-it API
        change.
        * diagnostic.c (print_parseable_fixits): Likewise.
        * edit-context.c (edited_line::m_line_events): Convert from
        auto_vec <line_event *> to auto_vec <line_event>.
        (class line_event): Convert from abstract base class to a concrete
        class, taking over the role of replace_event.
        (class insert_event): Delete.
        (class replace_event): Rename to class line_event.  Convert to
        half-open range.
        (edit_context::add_fixits): Reimplement.
        (edit_context::apply_insert): Delete.
        (edit_context::apply_replace): Rename to...
        (edit_context::apply_fixit): ...this.  Convert to half-open range.
        (edited_file::apply_insert): Delete.
        (edited_file::apply_replace): Rename to...
        (edited_file::apply_fixit): ...this.
        (edited_line::~edited_line): Drop deletion of events.
        (edited_line::apply_insert): Delete.
        (edited_line::apply_replace): Rename to...
        (edited_line::apply_fixit): ...this.  Convert to half-open range.
        Update for change to type of m_line_events.
        * edit-context.h (edit_context::apply_insert): Delete.
        (edit_context::apply_replace): Rename to...
        (edit_context::apply_fixit): ...this.

2017-05-01  Martin Sebor  <msebor@redhat.com>

        * gimple-ssa-sprintf.c (format_integer): Set knownrange when it's
        known.

2017-05-01  Uros Bizjak  <ubizjak@gmail.com>

        PR target/68491
        * config/i386/cpuid.h (__get_cpuid): Always return 0 when
        __get_cpuid_max returns 0.
        (__get_cpuid_count): Ditto.

2017-05-01  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (substitute_in_expr) <tcc_vl_exp>: Also inline a call if the
        replacement expression is another instance of one of its arguments.

2017-05-01  Jakub Jelinek  <jakub@redhat.com>

        PR target/79430
        * rtlanal.c (reg_set_p): If reg is a stack_pointer_rtx, also
        check for stack push/pop autoinc.
        * config/i386/i386.c (ix86_agi_dependent): Return false
        if the only reason why modified_in_p returned true is that
        addr is SP based and set_insn is a push or pop.

2017-04-29  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline.c (compute_inlined_call_time): Remove now unnecesary
        overflow check.

2017-04-29  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/79224
        * ipa-inline-analysis.c (dump_predicate): Add optional parameter NL.
        (account_size_time): Use two predicates - exec_pred and
        nonconst_pred_ptr.
        (evaluate_conditions_for_known_args): Compute both clause and
        nonspec_clause.
        (evaluate_properties_for_edge): Evaulate both clause and nonspec_clause.
        (inline_summary_t::duplicate): Update.
        (estimate_function_body_sizes): Caluculate exec and nonconst predicates
        separately.
        (compute_inline_parameters): Likewise.
        (estimate_edge_size_and_time): Update caluclation of time.
        (estimate_node_size_and_time): Compute both time and nonspecialized
        time.
        (estimate_ipcp_clone_size_and_time): Update.
        (inline_merge_summary): Update.
        (do_estimate_edge_time): Update.
        (do_estimate_edge_size): Update.
        (do_estimate_edge_hints): Update.
        (inline_read_section, inline_write_summary): Stream both new predicates.
        * ipa-inline.c (compute_uninlined_call_time): Take uninlined_call_time
        as argument.
        (compute_inlined_call_time): Cleanup.
        (big_speedup_p): Update.
        (edge_badness): Update.
        * ipa-inline.h (INLINE_TIME_SCALE): Remove.
        (size_time_entry): Replace predicate by exec_predicate and
        nonconst_predicate.
        (edge_growth_cache_entry): Cache both time nad nonspecialized time.
        (estimate_edge_time): Return also nonspec_time.
        (reset_edge_growth_cache): Update.

2017-04-29  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/80491
        * ifcvt.c (noce_process_if_block): When looking for x setter
        with missing else_bb, don't check only the insn right before
        cond_earliest, but look for the last insn that x is modified in
        within the same bb.

        PR rtl-optimization/80491
        * alias.c (memory_modified_in_insn_p): Return true for CALL_INSNs.

2017-04-29  Marc Glisse  <marc.glisse@inria.fr>

        PR tree-optimization/80487
        * tree-ssa-alias.c (stmt_kills_ref_p): Handle stpncpy and strncpy.

2017-04-29  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR tree-optimization/79697
        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Check if callee
        is BUILT_IN_STRDUP, BUILT_IN_STRNDUP, BUILT_IN_REALLOC.
        (propagate_necessity): Check if def_callee is BUILT_IN_STRDUP or
        BUILT_IN_STRNDUP.
        * gimple-fold.c (gimple_fold_builtin_realloc): New function.
        (gimple_fold_builtin): Call gimple_fold_builtin_realloc.

2017-04-28  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/80523
        * gimple-ssa-sprintf.c (target_to_host_charmap): New global variable.
        (init_target_to_host_charmap, target_to_host, target_strtol10): New
        functions.
        (maybe_warn, format_directive, parse_directive): Use new functions.
        (pass_sprintf_length::execute): Call init_target_to_host_charmap.

2017-04-28  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (X+Z OP Y+Z, X-Z OP Y-Z, Z-X OP Z-Y): New transformations.

2017-04-28  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * configure.ac (SYSTEM_HEADER_DIR, BUILD_SYSTEM_HEADER_DIR,
        target_header_dir): Set correctly.
        * configure: Regenerated.
        * Makefile.in (BUILD_SYSTEM_HEADER_DIR): New make variabe.
        (LIMITS_H_TEST, if_multiarch, stmp-fixinc): Use BUILD_SYSTEM_HEADER_DIR
        instead of SYSTEM_HEADER_DIR.

2017-04-28  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-cp.c (perform_estimation_of_a_value): Turn time to sreal.
        (estimate_local_effects): Likewise.
        * ipa-inline.c (compute_inlined_call_time, want_inline_small_function_p,
        edge_badness, inline_small_functions, dump_overall_stats): LIkewise.
        * ipa-inline.h (edge_growth_cache_entry, estimate_time_after_inlining,
        estimate_ipcp_clone_size_and_time, do_estimate_edge_time,
        do_estimate_edge_time, estimate_edge_time): Likewise.
        * ipa-inline-analysis.c (estimate_node_size_and_time,
        estimate_ipcp_clone_size_and_time, do_estimate_edge_time): Likewise.
        (estimate_time_after_inlining): Remove.

2017-04-28  Martin Liska  <mliska@suse.cz>

        * doc/gcov.texi: Enhance documentation of gcov.

2017-04-28  Martin Liska  <mliska@suse.cz>

        * doc/gcov.texi: Sort options in alphabetic order.
        * doc/gcov-dump.texi: Likewise.
        * doc/gcov-tool.texi: Likewise.
        * gcov.c (print_usage): Likewise.
        * gcov-dump.c (print_usage): Likewise.
        * gcov-tool.c (print_merge_usage_message): Likewise.
        (print_rewrite_usage_message): Likewise.
        (print_overlap_usage_message): Likewise.

2017-04-28  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/53915
        * gcov.c (format_gcov): Print 'NAN %' when top > bottom.

2017-04-28  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/79891
        * gcov.c (add_line_counts): Assign BBs to lines just if the BB
        is marked by compiler as living on a line.
        (get_cycles_count): Remove usage of the union.
        (output_intermediate_file): Likewise.
        (find_source): Fix GNU coding style.
        (accumulate_line_counts): Remove old non-all block mode.
        (output_lines): Remove usage of the union.
        * profile.c (output_location): Include all BBs, even if
        belonging to a same line (and file) as a previous BB.

2017-04-28  Martin Liska  <mliska@suse.cz>

        * gcov.c (process_args): Handle new argument 'w'.
        (read_graph_file): Assign ID to BBs.
        (output_branch_count): Display BB # if verbose flag is set.
        (output_lines): Likewise for arcs.
        (print_usage): Add '--verbose' option help.
        * doc/gcov.texi: Document --verbose (-w) option.

2017-04-28  Martin Liska  <mliska@suse.cz>

        * gcov.c (struct block_location_info): New struct.
        (process_file): Fill up the new structure.
        (read_graph_file): Replace usage of encoding by the newly added
        struct.
        (add_line_counts): Likewise.
        (accumulate_line_counts): Remove usage of the union.
        (function_info::function_info): New function.
        (function_info::~function_info): Likewise.
        (process_file): Call delete instead of release_function.
        (release_function): Release the function.
        (release_structures): Call delete instead of release_function.
        (solve_flow_graph): Replace usage of num_blocks.
        (find_exception_blocks): Likewise.
        (output_lines): Fix GNU coding style.

2017-04-28  Martin Liska  <mliska@suse.cz>

        PR driver/56469
        * coverage.c (coverage_remove_note_file): New function.
        * coverage.h: Declare the function.
        * toplev.c (finalize): Clean if an error has been seen.

2017-04-28  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/80031
        * gcov-dump.c (tag_blocks): Just print number of basic blocks.
        * gcov-io.h (GCOV_TAG_BLOCKS_NUM): Remove unused macro.
        * gcov.c (read_graph_file): Read just number of blocks.
        * profile.c (branch_prob): Do not stream 0 flags per a basic
        block.

2017-04-28  Martin Liska  <mliska@suse.cz>

        * gcov-dump.c (tag_*): Add new argument to declarations.
        (dump_gcov_file): Likewise.
        (tag_blocks): Add and use new argument depth.
        (tag_arcs): Likewise.
        (tag_lines): Likewise.
        (tag_counters): Likewise.
        (tag_summary): Likewise.
        (dump_working_sets): Use depth to do a proper indentation.

2017-04-28  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/80531
        * cgraph.h (symtab_node::debug_symtab): No longer inline.
        * symtab.c (symtab_node::debug_symtab): Move definition here.

2017-04-28  Richard Biener  <rguenther@suse.de>

        * lto-streamer.h (LTO_major_version): Bump to 7.

2017-04-28  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (assert_info): New struct.
        (add_assert_info): New helper.
        (register_edge_assert_for_2): Refactor to add asserts to a vector
        of assert_info.
        (register_edge_assert_for_1): Likewise.
        (register_edge_assert_for): Likewise.
        (finish_register_edge_assert_for): New helper actually registering
        asserts where live on edge.
        (find_conditional_asserts): Adjust.
        (find_switch_asserts): Likewise.
        (evrp_dom_walker::try_find_new_range): Generalize.
        (evrp_dom_walker::before_dom_children): Use register_edge_assert_for.

2017-04-27  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/80349
        * fold-const.c (fold_binary_loc) <case EQ_EXPR, NE_EXPR>: Convert
        arg10 and arg11 to itype.

2017-04-27  Jonathan Wakely  <jwakely@redhat.com>

        * doc/extend.texi (Object Size Checking): Improve grammar.

2017-04-27  Richard Earnshaw  <rearnsha@arm.com>

        PR target/80530
        * config/aarch64/aarch64.c (aarch64_emit_approx_sqrt): Ensure
        that the logic for permitting reciprocal estimates matches that
        in use_rsqrt_p.

2017-04-27  Jakub Jelinek  <jakub@redhat.com>

        PR c++/80534
        * tree.c (type_cache_hasher::equal): Only compare
        TYPE_TYPELESS_STORAGE flag on non-aggregate element types.
        (build_array_type_1): Only hash TYPE_TYPELESS_STORAGE flag on
        non-aggregate element types.
        * tree.h (TYPE_TYPELESS_STORAGE): Fix comment typo, add more details
        about the flag on ARRAY_TYPEs in the comment, formatting fix.

2017-04-27  Richard Biener  <rguenther@suse.de>

        PR middle-end/80533
        * emit-rtl.c (set_mem_attributes_minus_bitpos): When
        stripping ARRAY_REFs from MEM_EXPR make sure we're not
        keeping a reference to a trailing array.

2017-04-27  Richard Biener  <rguenther@suse.de>

        PR middle-end/80539
        * tree-chrec.c (chrec_fold_plus_poly_poly): Deal with not
        being in loop-closed SSA form conservatively.
        (chrec_fold_multiply_poly_poly): Likewise.

2017-04-27  Tamar Christina  <tamar.christina@arm.com>

        PR middle-end/79665
        * expr.c (expand_expr_real_2): Move TRUNC_MOD_EXPR, FLOOR_MOD_EXPR,
        CEIL_MOD_EXPR, ROUND_MOD_EXPR cases.

2017-04-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/77728
        * config/aarch64/aarch64.c (struct aarch64_fn_arg_alignment): Remove.
        (aarch64_function_arg_alignment): Return unsigned int again, but still
        ignore TYPE_FIELDS chain decls other than FIELD_DECLs.
        (aarch64_layout_arg): Adjust aarch64_function_arg_alignment caller.
        Don't emit -Wpsabi note.
        (aarch64_function_arg_boundary): Likewise.
        (aarch64_gimplify_va_arg_expr): Adjust aarch64_function_arg_alignment
        caller.

2017-04-26  Nathan Sidwell  <nathan@acm.org>

        * tree.h (crc32_unsigned_n): Declare.
        (crc32_unsigned, crc32_unsigned): Make inline.
        * tree.c (crc32_unsigned_bits): Replace with ...
        (crc32_unsigned_n): ... this.
        (crc32_unsigned, crc32_byte): Remove.
        (crc32_string): Remove unnecessary braces.

2017-04-25  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-cp.c (estimate_local_effects): Convert sreal to int.
        * ipa-inline-analysis.c (MAX_TIME): Remove.
        (account_size_time): Use sreal for time.
        (dump_inline_summary): Update.
        (estimate_function_body_sizes): Update.
        (estimate_edge_size_and_time): Update.
        (estimate_calls_size_and_time): Update.
        (estimate_node_size_and_time): Update.
        (inline_merge_summary): Update.
        (inline_update_overall_summary): Update.
        (estimate_time_after_inlining): Update.
        (inline_read_section): Update.
        (inline_write_summary): Update.
        * ipa-inline.c (compute_uninlined_call_time): Update.
        (compute_inlined_call_time): Update.
        (recursive_inlining): Update.
        (inline_small_functions): Update.
        (dump_overall_stats): Update.
        * ipa-inline.h: Include sreal.h.
        (size_time_entry): Turn time to sreal.
        (inline_summary): Turn self_time nad time to sreal.

2017-04-25  Jan Hubicka  <hubicka@ucw.cz>

        * sreal.c: Include backend.h, tree.h, gimple.h, cgraph.h and
        data-streamer.h
        (sreal::stream_out, sreal::stream_in): New.
        * sreal.h (sreal::stream_out, sreal::stream_in): Declare.

2017-04-25  Jakub Jelinek  <jakub@redhat.com>

        * Makefile.in (s-options): Invoke opt-gather.awk with LC_ALL=C in the
        environment.

2017-04-25  Uros Bizjak  <ubizjak@gmail.com>

        PR target/70799
        * config/i386/i386.c (dimode_scalar_to_vector_candidate_p):
        Handle ASHIFTRT.
        (dimode_scalar_chain::compute_convert_gain): Ditto.
        (dimode_scalar_chain::make_vector_copies): Ditto.
        (dimode_scalar_chain::convert_reg): Ditto.
        (dimode_scalar_chain::convert_insn): Ditto.
        * config/i386/sse.md (VI24_AVX512BW_1): Remove mode iterator.
        (VI248_AVX512BW_1): New mode iterator.
        (<mask_codefor>ashr<mode>3<mask_name>): Merge insn pattern with
        <mask_codefor>ashrv2di3<mask_name> insn using VI248_AVX512BW_1
        mode iterator.

2017-04-25  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/80497
        * gimple-ssa-sprintf.c (get_int_range): Avoid assuming all integer
        constants are representable in HOST_WIDE_INT.
        (parse_directive): Ditto.

2017-04-25  Martin Sebor  <msebor@redhat.com>

        PR bootstrap/80486
        * dominance.c (dom_info::m_n_basic_blocks): Change type to unsigned.
        (new_zero_array): Adjust signature.
        (dom_info::dom_init): Used unsigned rather that size_t.
        (dom_info::dom_info): Same.

2017-04-25  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR target/77728
        * config/arm/arm.c: Include gimple.h.
        (aapcs_layout_arg): Emit -Wpsabi note if arm_needs_doubleword_align
        returns negative, increment ncrn only if it returned positive.
        (arm_needs_doubleword_align): Return int instead of bool,
        ignore DECL_ALIGN of non-FIELD_DECL TYPE_FIELDS chain
        members, but if there is any such non-FIELD_DECL
        > PARM_BOUNDARY aligned decl, return -1 instead of false.
        (arm_function_arg): Emit -Wpsabi note if arm_needs_doubleword_align
        returns negative, increment nregs only if it returned positive.
        (arm_setup_incoming_varargs): Likewise.
        (arm_function_arg_boundary): Emit -Wpsabi note if
        arm_needs_doubleword_align returns negative, return
        DOUBLEWORD_ALIGNMENT only if it returned positive.

2017-04-25  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/80349
        * fold-const.c (fold_binary_loc) <case BIT_IOR_EXPR>: Convert arg0's
        first argument to type.

2017-04-25  Bill Seurer  <seurer@linux.vnet.ibm.com>

        PR target/80482
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Change
        type checks to test for compatibility instead of equality.

2017-04-25  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR target/77728
        * config/aarch64/aarch64.c (struct aarch64_fn_arg_alignment): New
        type.
        (aarch64_function_arg_alignment): Return aarch64_fn_arg_alignment
        struct.  Ignore DECL_ALIGN of decls other than FIELD_DECL for
        the alignment computation, but return their maximum in warn_alignment.
        (aarch64_layout_arg): Adjust aarch64_function_arg_alignment caller.
        Emit a -Wpsabi note if warn_alignment is 16 bytes, but alignment
        is smaller.
        (aarch64_function_arg_boundary): Likewise.  Simplify using MIN/MAX.
        (aarch64_gimplify_va_arg_expr): Adjust aarch64_function_arg_alignment
        caller.

2017-04-25  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/simdext.md (dmpyh): Fix typo.

2017-04-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80492
        * alias.c (compare_base_decls): Handle registers with asm
        specification conservatively.
        * tree-ssa-alias.c (decl_refs_may_alias_p): Handle
        compare_base_decls returning dont-know properly.

2017-04-25  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (LEGITIMATE_OFFSET_ADDRESS_P): Delete macro.
        (legitimate_offset_address_p): New function.
        (arc_legitimate_address_p): Use above function.

2017-04-25  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_output_mi_thunk): Emit PIC calls.

2017-04-25  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_conditional_register_usage): Use ACCL,
        ACCH registers whenever they are available.

2017-04-25  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_conditional_register_usage): Make D0, D1
        double regs fix when not used.

2017-04-25  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.h (REGNO_OK_FOR_BASE_P): Consider also extension
        core registers.
        (REG_OK_FOR_INDEX_P_NONSTRICT): Likewise.
        (REG_OK_FOR_BASE_P_NONSTRICT): Likewise.

2017-04-25  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_output_addsi): Check for h-register class
        when emitting short ADD instructions.

2017-04-25  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (cmpsi_cc_insn_mixed): Use 'h' register
        constraint.
        (cmpsi_cc_c_insn): Likewise.
        (cbranchsi4_scratch): Compute proper instruction length using
        compact_hreg_operand.
        * config/arc/predicates.md (compact_hreg_operand): New predicate.

2017-04-25  Richard Biener  <rguenther@suse.de>

        PR middle-end/80509
        * passes.c (pass_manager::pass_manager): Initialize
        m_name_to_pass_map.

2017-04-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79201
        * tree-ssa-sink.c (statement_sink_location): Handle calls.

2017-04-25  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/80464
        * config/s390/vector.md: Split MEM->GPR vector moves for
        non-s_operand addresses.

2017-04-25  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/79895
        * config/s390/predicates.md (reload_const_wide_int_operand): New
        predicate.
        * config/s390/s390.md ("movti"): Remove d/P alternative.
        ("movti_bigconst"): New pattern definition.

2017-04-25  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        PR target/80080
        * s390-protos.h (s390_expand_cs_hqi): Removed.
        (s390_expand_cs, s390_expand_atomic_exchange_tdsi): New prototypes.
        * config/s390/s390.c (s390_emit_compare_and_swap): Handle all integer
        modes as well as CCZ1mode and CCZmode.
        (s390_expand_atomic_exchange_tdsi, s390_expand_atomic): Adapt to new
        signature of s390_emit_compare_and_swap.
        (s390_expand_cs_hqi): Likewise, make static.
        (s390_expand_cs_tdsi): Generate an explicit compare before trying
        compare-and-swap, in some cases.
        (s390_expand_cs): Wrapper function.
        (s390_expand_atomic_exchange_tdsi): New backend specific expander for
        atomic_exchange.
        (s390_match_ccmode_set): Allow CCZmode <-> CCZ1 mode.
        * config/s390/s390.md ("atomic_compare_and_swap<mode>"): Merge the
        patterns for small and large integers.  Forbid symref memory operands.
        Move expander to s390.c.  Require cc register.
        ("atomic_compare_and_swap<DGPR:mode><CCZZ1:mode>_internal")
        ("*atomic_compare_and_swap<TDI:mode><CCZZ1:mode>_1")
        ("*atomic_compare_and_swapdi<CCZZ1:mode>_2")
        ("*atomic_compare_and_swapsi<CCZZ1:mode>_3"): Use s_operand to forbid
        symref memory operands.  Remove CC mode and call s390_match_ccmode
        instead.
        ("atomic_exchange<mode>"): Allow and implement all integer modes.

2017-04-25  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/s390.md (define_peephole2): New peephole to help
        combining the load-and-test pattern with volatile memory.

2017-04-25  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/s390.md ("cstorecc4"): Use load-on-condition and deal
        with CCZmode for TARGET_Z196.

2017-04-25  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/80501
        * combine.c (make_compound_operation_int): Set subreg_code to SET
        even for AND with mask of the sign bit of mode.

        PR rtl-optimization/80500
        * loop-unroll.c (combine_var_copies_in_loop_exit): Call copy_rtx on
        sum's initial value.

2017-04-25  Julian Brown  <julian@codesourcery.com>
            Naveen H.S  <Naveen.Hurugalawadi@cavium.com>

        * config/aarch64/thunderx2t99.md (thunderx2t99_crc): New Reservation.

2017-04-25  Marc Glisse  <marc.glisse@inria.fr>

        * fold-const.c (tree_single_nonzero_warnv_p): Handle SSA_NAME.

2017-04-25  Julian Brown  <julian@codesourcery.com>
            Naveen H.S  <Naveen.Hurugalawadi@cavium.com>

        * config/aarch64/thunderx2t99.md (thunderx2t99_aes): New Reservation.
        (thunderx2t99_sha): New Reservation.

2017-04-25  Julian Brown  <julian@codesourcery.com>
            Naveen H.S  <Naveen.Hurugalawadi@cavium.com>

        * config/aarch64/aarch64-simd.md (aarch64_simd_vec_set<mode>): Fix
        type for 1-element load.

2017-04-24  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (X/[ex]C CMP Y/[ex]C): New transformation.

2017-04-24  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/80293
        * tree-sra.c (scalarizable_type_p): New parameter const_decl, make
        char arrays not totally scalarizable if it is false.
        (analyze_all_variable_accesses): Pass correct value in the new
        parameter.  Add a statistics counter.

2017-04-24  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/79931
        * ipa-devirt.c (dump_possible_polymorphic_call_targets): Fix ICE.

2017-04-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80494
        * tree-scalar-evolution.c (analyze_scalar_evolution_1): Bail
        out for complex types.

2017-04-24  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.h (run_scc_vn): Adjust prototype.
        * tree-ssa-sccvn.c (print_scc): Print SCC size.
        (extract_and_process_scc_for_name): Never fail but drop SCC to varying.
        (DFS): Adjust and never fail.
        (sccvn_dom_walker::fail): Remove.
        (sccvn_dom_walker::before_dom_children): Adjust.
        (run_scc_vn): Likewise and never fail.
        * tree-ssa-pre.c (pass_pre::execute): Adjust.
        (pass_fre::execute): Likewise.

2017-04-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79725
        * tree-ssa-sink.c (statement_sink_location): Return whether
        failure reason was zero uses.  Move that check later.
        (sink_code_in_bb): Deal with zero uses by removing the stmt
        if possible.

2017-04-24  Richard Biener  <rguenther@suse.de>

        PR c++/2972
        * tree-ssa-uninit.c (warn_uninitialized_vars): Handle some
        pointer-based references.

2017-04-24  Richard Biener  <rguenther@suse.de>

        PR bootstrap/79814
        * pass_manager.h (pass_manager::operator new): Remove.
        (pass_manager::operator delete): Likewise.
        * passes.c (pass_manager::operator new): Remove.
        (pass_manager::operator delete): Likewise.
        (pass_manager::pass_manager): Zero individual pass members.

2017-04-23  Uros Bizjak  <ubizjak@gmail.com>

        PR target/70799
        * config/i386/i386.c (dimode_scalar_to_vector_candidate_p)
        <case ASHIFT, case LSHIFTRT>: Also consider variable shifts.
        Check "XEXP (src, 1)" operand here.
        <case PLUS, case MINUS, case IOR, case XOR, case AND>:
        Check "XEXP (src, 1)" operand here.
        (dimode_scalar_chain::make_vector_copies): Detect count register
        of a shift instruction.  Zero extend count register from QImode
        to DImode to satisfy vector shift pattern count operand predicate.
        Substitute vector shift count operand with a DImode copy.
        (dimode_scalar_chain::convert_reg): Ditto, zero-extend from
        vector register.

2017-04-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*extzvqi_mem_rex64): Move above *extzv<mode>.
        Remove UNSPEC_NOREX_MEM tag.  Update corresponding peephole2 pattern.
        (*insvqi_1_mem_rex64): Move above insv<mode>_1.  Remove
        UNSPEC_NOREX_MEM tag.  Update corresponding peephole2 pattern.
        (UNSPEC_NOREX_MEM): Remove definition.

2017-04-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79547
        * tree-ssa-structalias.c (find_func_aliases_for_builtin_call):
        Handle strlen, strcmp, strncmp, strcasecmp, strncasecmp, memcmp,
        bcmp, strspn, strcspn, __builtin_object_size and __builtin_constant_p
        without any constraints.

2017-04-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78847
        * fold-const.c (split_tree): Handle POINTER_PLUS_EXPR.

2017-04-21  Richard Biener  <rguenther@suse.de>

        * tree.h (build_qualified_type): Annotate with CXX_MEM_STAT_INFO.
        (build_distinct_type_copy): Likewise.
        (build_variant_type_copy): Likewise.
        * tree.c (build_qualified_type): Pass down mem-stat info.
        (build_distinct_type_copy): Likewise.
        (build_variant_type_copy): Likewise.

2017-04-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80237
        * tree-ssa-pre.c (find_leader_in_sets): Add third set argument,
        defaulted to NULL.
        (phi_translate_1): Also allow a leader in AVAIL_OUT of pred
        for a simplified result.

2016-04-21  Richard Biener  <rguenther@suse.de>

        * tree-ssa-loop-ivcanon.c (constant_after_peeling): Do not require
        sth as strict as a simple_iv but a chrec without symbols and an
        operand defined in the loop we are peeling (and not some subloop).
        (propagate_constants_for_unrolling): Propagate all constants.

2017-04-20  Uros Bizjak  <ubizjak@gmail.com>

        PR target/79804
        * config/i386/i386.c (print_reg): Remove assert for disalowed
        regno values, call output_operand_lossage instead.

2017-04-20  Uros Bizjak  <ubizjak@gmail.com>

        PR target/78090
        * config/i386/constraints.md (Yc): New register constraint.
        * config/i386/i386.md (*float<SWI48:mode><MODEF:mode>2_mixed):
        Use Yc constraint for alternative 2 of operand 0.  Remove
        preferred_for_speed attribute.

2017-04-20  Alexander Monakov  <amonakov@ispras.ru>

        * omp-low.c (lower_lastprivate_clauses): Correct handling of linear and
        lastprivate clauses in SIMT case.

2017-04-20  Volker Reichelt  <v.reichelt@netcologne.de>

        * doc/invoke.texi (-Wextra-semi): Document new warning option.

2017-04-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/57796
        * tree-vect-stmts.c (vect_model_store_cost): Cost scatters
        as N scalar stores.
        (vect_model_load_cost): Cost gathers as N scalar loads.

2017-04-20  Richard Biener  <rguenther@suse.de>

        * ggc-page.c (ggc_allocated_p): Rename to ...
        (safe_lookup_page_table_entry): ... this and return the lookup
        result.
        (gt_ggc_m_S): Use safe_lookup_page_table_entry.

2017-04-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80453
        * tree-ssa-sccvn.h (struct vn_phi_s): Add cclhs and ccrhs members.
        * tree-ssa-sccvn.c (cond_stmts_equal_p): Use recorded lhs and rhs
        from the conditions.
        (vn_phi_eq): Pass them down.
        (vn_phi_lookup): Record them.
        (vn_phi_insert): Likewise.

2017-04-20  Matthew Fortune  <matthew.fortune@imgtec.com>

        * config/mips/mips.c (mips_expand_vec_perm_const): Re-fix
        uninitialized variable warning to avoid buffer overrun.

2017-04-20  Alexander Monakov  <amonakov@ispras.ru>

        PR other/71250
        * doc/invoke.texi (-Wmissing-field-initializers): Mention that warning
        is suppressed for '{ 0 }' in C.

2017-04-20  Jakub Jelinek  <jakub@redhat.com>

        * BASE-VER: Set to 8.0.0.

2017-04-20  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (arm_elf_asm_cdtor): Create non-default
        priority .init_array and .fini_array section with SECTION_NOTYPE
        flag.

2017-04-20  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/80423
        * tree.h (build_array_type): Add typeless_storage default argument.
        * tree.c (type_cache_hasher::equal): Also compare
        TYPE_TYPELESS_STORAGE flag for ARRAY_TYPEs.
        (build_array_type): Add typeless_storage argument, set
        TYPE_TYPELESS_STORAGE to it, if shared also hash it, and pass to
        recursive call.
        (build_nonshared_array_type): Adjust build_array_type_1 caller.
        (build_array_type): Likewise.  Add typeless_storage argument.

2017-04-19  Eric Botcazou  <ebotcazou@adacore.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/80426
        * tree-vrp.c (extract_range_from_binary_expr_1): For an additive
        operation on symbolic operands, also compute the overflow for the
        invariant part when the operation degenerates into a negation.

2017-04-19  Jakub Jelinek  <jakub@redhat.com>

        PR debug/80461
        * dwarf2out.c (modified_type_die, gen_type_die_with_usage):
        Check for t with zero TYPE_QUALS_NO_ADDR_SPACE.

        PR debug/80436
        * tree-ssa-loop-manip.c (find_uses_to_rename_def): Ignore debug uses.

2017-04-19  Georg-Johann Lay  <avr@gjlay.de>

        PR target/80462
        * config/avr/avr.c (tree.h): Include it.
        (cgraph.h): Include it.
        (avr_encode_section_info): Don't warn for uninitialized progmem
        variable if it's just an alias.

2017-04-19  Richard Biener  <rguenther@suse.de>

        PR ipa/65972
        * auto-profile.c (afdo_vpt_for_early_inline): Update SSA
        when needed by AutoPGO.

2017-04-19  Paulo J. Matos  <paulo@matos-sorge.com>

        PR lto/50345
        * doc/lto.texi: Remove an extra 'that'.

2017-04-19  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/80429
        * ira.c (split_live_ranges_for_shrink_wrap): Don't split regs that
        are only used in debug insns.

2017-04-19  Eric Botcazou  <ebotcazou@adacore.com>
            Vladimir Makarov  <vmakarov@redhat.com>

        * config/sparc/predicates.md (input_operand): Add comment.  Return
        true for any memory operand when LRA is in progress.
        * config/sparc/sparc.c (sparc_expand_move): Minor formatting fix.

2017-04-18  Jeff Law  <law@redhat.com>

        PR target/74563
        * mips.md ({return,simple_return}_internal): Do not overwrite
        operands[0].

2017-04-18  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/80443
        * tree-vrp.c (intersect_ranges): For signed 1-bit precision type,
        instead of adding 1, subtract -1 and similarly instead of subtracting
        1 add -1.

2017-04-18  Richard Sandiford  <richard.sandiford@arm.com>

        PR rtl-optimization/80357
        * haifa-sched.c (tmp_bitmap): New variable.
        (model_recompute): Handle duplicate use records.
        (alloc_global_sched_pressure_data): Initialize tmp_bitmap.
        (free_global_sched_pressure_data): Free it.

2017-04-18  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        Revert:
        2017-02-20  Bernd Edlinger  <bernd.edlinger@hotmail.de>
        * Makefile.in (BUILD_SYSTEM_HEADER_DIR): New make variabe.
        (LIMITS_H_TEST, if_multiarch, stmp-fixinc): Use BUILD_SYSTEM_HEADER_DIR
        instead of SYSTEM_HEADER_DIR.

2017-04-18  Jeff Law  <law@redhat.com>

        PR middle-end/80422
        * cfgcleanup.c (try_crossjump_to_edge): Verify SRC1 and SRC2 have
        predecessors after walking up the insn chain.

2017-04-18  Jakub Jelinek  <jakub@redhat.com>

        PR debug/80263
        * dwarf2out.c (modified_type_die): Try harder not to emit internal
        sizetype type into debug info.

2017-04-18  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/80099
        * config/rs6000/rs6000.c (rs6000_expand_vector_extract): Eliminate
        unneeded test for TARGET_UPPER_REGS_SF.
        * config/rs6000/vsx.md (vsx_extract_v4sf_var): Likewise.

2017-04-18  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/80444
        * sancov.c (sancov_pass): Use gsi_start_nondebug_after_labels_bb
        instead of gsi_after_labels.

2017-04-18  Jeff Law  <law@redhat.com>

        * regcprop.c (maybe_mode_change): Avoid creating copies of the
        stack pointer.

        Revert:
        2017-04-13  Jeff Law  <law@redhat.com>
        * config/mips.mips.md (zero_extendsidi2): Do not allow SP to appear
        in operands[1] if it is a MEM and TARGET_MIPS16 is active.

2017-04-18  Georg-Johann Lay  <avr@gjlay.de>

        PR target/79453
        * config/avr/avr.c (intl.h): Include it.
        (avr_pgm_check_var_decl) [reason]: Wrap diagnostic snippets into _().

2017-04-18  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/78783
        * gcov-tool.c (gcov_output_files): Validate that destination
        file is either removed by the tool or by a user.

2017-04-14  Andrew Burgess  <andrew.burgess@embecosm.com>
            Guy Benyei  <guybe@mellanox.com>

        * config/arc/arc.c (arc_reorg): Move loop_end_id into a more local
        block, and do not negate it, the stored id is already negative.

2017-04-14  Andrew Burgess  <andrew.burgess@embecosm.com>

        * config/arc/arc.md (doloop_begin_i): Use @pcl assembler syntax.

2017-04-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/80098
        * config/rs6000/rs6000-cpus.def (OTHER_P9_VECTOR_MASKS): Define
        masks of options that should be turned off if the VSX vector
        options are turned off.
        (OTHER_P8_VECTOR_MASKS): Likewise.
        (OTHER_VSX_VECTOR_MASKS): Likewise.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Call
        rs6000_disable_incompatible_switches to validate no type switches
        like -mvsx.
        (rs6000_incompatible_switch): New function to disallow turning on
        other vector options if -mno-vsx, -mno-power8-vector, or
        -mno-power9-vector are specified.

2017-04-14  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.h (CRT_CALL_STATIC_FUNCTION): Use long calls.

2017-04-14  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-protos.h (arc_decl_pretend_args): Remove.
        * config/arc/arc.c (arc_decl_pretend_args): Likewise.
        * config/arc/arc.h (CFA_FRAME_BASE_OFFSET): Likewise.
        (ARG_POINTER_CFA_OFFSET): Likewise.

2017-04-14  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_mode_dependent_address_p): Relax
        conditions to take advantage of various optimizations.

2017-04-13  Jeff Law  <law@redhat.com>

        * config/mips.mips.md (zero_extendsidi2): Do not allow SP to appear
        in operands[1] if it is a MEM and TARGET_MIPS16 is active.
        (zero_extendsidi2_dext): Likewise.

2017-04-13  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/80403
        * fold-const.c (fold_ternary_loc): Revert
        use op0 instead of fold_convert_loc (loc, type, arg0) part of
        2017-04-12 change.

2017-04-13  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/80343
        * lra-remat.c (update_scratch_ops): Assign original hard reg to
        new scratch pseudo.

2017-04-13  Denis Khalikov <d.khalikov@partner.samsung.com>

        PR sanitizer/80414
        * ubsan.c (ubsan_expand_bounds_ifn): Pass original index
        to ubsan_encode_value.

2017-04-13  Jeff Law  <law@redhat.com>

        * reload1.c (eliminate_regs_1): Call gen_rtx_raw_SUBREG for SUBREGs
        appearing in DEBUG_INSNs.

2017-04-13  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/80413
        * gcov-io.c (gcov_write_string): Copy to buffer just when
        allocated size is greater than zero.

2017-04-13  Jakub Jelinek  <jakub@redhat.com>

        PR debug/80321
        * dwarf2out.c (decls_for_scope): Ignore declarations of
        current_function_decl in BLOCK_NONLOCALIZED_VARS.

2017-04-12  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/69953
        * ipa-visibility.c (non_local_p): Fix typos.
        (localize_node): When localizing symbol in same comdat group,
        dissolve the group only when we know external symbols are going
        to be privatized.
        (function_and_variable_visibility): Do not localize DECL_EXTERNAL.

2017-04-12  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79390
        * optabs.c (emit_conditional_move): If the preferred op2/op3 operand
        order does not result in usable sequence, retry with reversed operand
        order.

        PR sanitizer/80403
        PR sanitizer/80404
        PR sanitizer/80405
        * fold-const.c (fold_ternary_loc): Use op1 instead of arg1 as argument
        to fold_build2_loc.  Convert TREE_OPERAND (tem, 0) to type.  Use
        op0 instead of fold_convert_loc (loc, type, arg0).

2017-04-12  Jeff Law  <law@redhat.com>

        * genattrtab.c (write_eligible_delay): Verify DELAY_INSN still
        has a delay slot in the generated code.

        * config/cris/cris.md (cris_preferred_reload_class): Return
        GENNONACR_REGS rather than GENERAL_REGS.

2017-04-12  Jakub Jelinek  <jakub@redhat.com>

        PR c/80163
        * expr.c <CASE_CONVERT>: For EXPAND_INITIALIZER determine SIGN_EXTEND
        vs. ZERO_EXTEND based on signedness of treeop0's type rather than
        signedness of the result type.

2017-04-12  Richard Biener  <rguenther@suse.de>
            Jeff Law  <law@redhat.com>

        PR tree-optimization/80359
        * tree-ssa-dse.c (maybe_trim_partially_dead_store): Do not
        trim stores to TARGET_MEM_REFs.

2017-04-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79390
        * gimple-ssa-split-paths.c (is_feasible_trace): Restrict
        threading case even more.

2017-04-12  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/80382
        * config/rs6000/sync.md (atomic_load<mode>, atomic_store<mode): Test
        for quad_address_p for TImode, instead of just not indexed_address.

2017-04-12  Richard Biener  <rguenther@suse.de>
            Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/79671
        * alias.c (component_uses_parent_alias_set_from): Handle
        TYPE_TYPELESS_STORAGE.
        (get_alias_set): Likewise.
        * tree-core.h (tree_type_common): Add typeless_storage flag.
        * tree.h (TYPE_TYPELESS_STORAGE): New macro.
        * stor-layout.c (place_union_field): Set TYPE_TYPELESS_STORAGE
        for types containing members with TYPE_TYPELESS_STORAGE.
        (place_field): Likewise.
        (layout_type): Likewise for ARRAY_TYPE.
        * lto-streamer-out.c (hash_tree): Hash TYPE_TYPELESS_STORAGE.
        * tree-streamer-in.c (unpack_ts_type_common_value_fields): Stream
        TYPE_TYPELESS_STORAGE.
        * tree-streamer-out.c (pack_ts_type_common_value_fields): Likewise.

2017-04-12  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/80349
        * fold-const.c (fold_binary_loc) <case BIT_IOR_EXPR>: Convert arg0's
        first argument to type.

2017-04-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/80376
        PR target/80315
        * config/rs6000/rs6000.c (rs6000_expand_unop_builtin): Return
        CONST0_RTX (mode) rather than const0_rtx where appropriate.
        (rs6000_expand_binop_builtin): Likewise.
        (rs6000_expand_ternop_builtin): Likewise; also add missing
        vsx_xxpermdi_* variants; also fix typo (arg1 => arg2) for
        vshasigma built-ins.
        * doc/extend.texi: Document that vec_xxpermdi's third argument
        must be a constant.

2017-04-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (dimode_scalar_chain::compute_convert_gain):
        Use shift_const cost parameter when calculating gain of STV shifts.

2017-04-11  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/70478
        * lra-constraints.c (process_alt_operands): Check memory for
        disfavoring memory insn operand.

2017-04-11  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/80100
        * simplify-rtx.c (simplify_binary_operation_1) <case IOR>: Perform
        left shift in unsigned HOST_WIDE_INT type.

        PR rtl-optimization/80385
        * simplify-rtx.c (simplify_unary_operation_1): Don't transform
        (not (neg X)) into (plus X -1) for complex or non-integral modes.

        PR libgomp/80394
        * omp-low.c (scan_omp_task): Don't optimize away empty tasks
        if they have any depend clauses.

2017-04-11  Martin Liska  <mliska@suse.cz>

        PR ipa/80212
        * cgraph.c (cgraph_node::dump): Dump calls_comdat_local.
        * ipa-split.c (split_function): Create a local comdat symbol
        if caller is in a comdat group.

2017-04-11  Martin Liska  <mliska@suse.cz>

        PR ipa/80212
        * ipa-cp.c (determine_versionability): Handle calls_comdat_local
        flags.

2017-04-11  Martin Sebor  <msebor@redhat.com>

        PR middle-end/80364
        * gimple-ssa-sprintf.c (get_int_range): Remove second argument and
        always use the int type.  Use INTEGRAL_TYPE_P() rather than testing
        for INTEGER_TYPE.
        (directive::set_width, directive::set_precision, format_character):
        Adjust.
        (parse_directive): Use INTEGRAL_TYPE_P() rather than testing for
        INTEGER_TYPE.

2017-04-11  Richard Earnshaw  <rearnsha@arm.com>

        PR target/80389
        * config/arm/arm.c (arm_configure_build_target): When -mcpu and -arch
        conflict, set target->arch_name instead of target->cpu_name.

2017-04-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80374
        * tree-ssa-dom.c (derive_equivalences_from_bit_ior): Use
        build_zero_cst, remove fold_convertible_p check again.

2017-04-11  Martin Liska  <mliska@suse.cz>

        PR sanitizer/70878
        * ubsan.c (instrument_object_size): Do not instrument register
        variables.

2017-04-11  Jakub Jelinek  <jakub@redhat.com>

        PR target/80381
        * config/i386/i386-builtin-types.def
        (V16HI_FTYPE_V16HI_INT_V16HI_UHI_COUNT,
        V16HI_FTYPE_V16HI_V8HI_V16HI_UHI_COUNT,
        V16SI_FTYPE_V16SI_INT_V16SI_UHI_COUNT,
        V16SI_FTYPE_V16SI_V4SI_V16SI_UHI_COUNT,
        V2DI_FTYPE_V2DI_INT_V2DI_UQI_COUNT,
        V2DI_FTYPE_V2DI_V2DI_V2DI_UQI_COUNT,
        V32HI_FTYPE_V32HI_INT_V32HI_USI_COUNT,
        V32HI_FTYPE_V32HI_V8HI_V32HI_USI_COUNT,
        V4DI_FTYPE_V4DI_INT_V4DI_UQI_COUNT,
        V4DI_FTYPE_V4DI_V2DI_V4DI_UQI_COUNT,
        V4SI_FTYPE_V4SI_INT_V4SI_UQI_COUNT,
        V4SI_FTYPE_V4SI_V4SI_V4SI_UQI_COUNT,
        V8DI_FTYPE_V8DI_INT_V8DI_UQI_COUNT,
        V8DI_FTYPE_V8DI_V2DI_V8DI_UQI_COUNT,
        V8HI_FTYPE_V8HI_INT_V8HI_UQI_COUNT,
        V8HI_FTYPE_V8HI_V8HI_V8HI_UQI_COUNT,
        V8SI_FTYPE_V8SI_INT_V8SI_UQI_COUNT,
        V8SI_FTYPE_V8SI_V4SI_V8SI_UQI_COUNT): New function type aliases.
        * config/i386/i386-builtin.def (__builtin_ia32_pslld512_mask,
        __builtin_ia32_pslldi512_mask, __builtin_ia32_psllq512_mask,
        __builtin_ia32_psllqi512_mask, __builtin_ia32_psrad512_mask,
        __builtin_ia32_psradi512_mask, __builtin_ia32_psraq512_mask,
        __builtin_ia32_psraqi512_mask, __builtin_ia32_psrld512_mask,
        __builtin_ia32_psrldi512_mask, __builtin_ia32_psrlq512_mask,
        __builtin_ia32_psrlqi512_mask, __builtin_ia32_psllwi128_mask,
        __builtin_ia32_pslldi128_mask, __builtin_ia32_psllqi128_mask,
        __builtin_ia32_psllw128_mask, __builtin_ia32_pslld128_mask,
        __builtin_ia32_psllq128_mask, __builtin_ia32_psllwi256_mask,
        __builtin_ia32_psllw256_mask, __builtin_ia32_pslldi256_mask,
        __builtin_ia32_pslld256_mask, __builtin_ia32_psllqi256_mask,
        __builtin_ia32_psllq256_mask, __builtin_ia32_psradi128_mask,
        __builtin_ia32_psrad128_mask, __builtin_ia32_psradi256_mask,
        __builtin_ia32_psrad256_mask, __builtin_ia32_psraqi128_mask,
        __builtin_ia32_psraq128_mask, __builtin_ia32_psraqi256_mask,
        __builtin_ia32_psraq256_mask, __builtin_ia32_psrldi128_mask,
        __builtin_ia32_psrld128_mask, __builtin_ia32_psrldi256_mask,
        __builtin_ia32_psrld256_mask, __builtin_ia32_psrlqi128_mask,
        __builtin_ia32_psrlq128_mask, __builtin_ia32_psrlqi256_mask,
        __builtin_ia32_psrlq256_mask, __builtin_ia32_psrawi256_mask,
        __builtin_ia32_psraw256_mask, __builtin_ia32_psrawi128_mask,
        __builtin_ia32_psraw128_mask, __builtin_ia32_psrlwi256_mask,
        __builtin_ia32_psrlw256_mask, __builtin_ia32_psrlwi128_mask,
        __builtin_ia32_psrlw128_mask, __builtin_ia32_psllwi512_mask,
        __builtin_ia32_psllw512_mask, __builtin_ia32_psrawi512_mask,
        __builtin_ia32_psraw512_mask, __builtin_ia32_psrlwi512_mask,
        __builtin_ia32_psrlw512_mask): Use _COUNT suffixed function type
        aliases.
        * config/i386/i386.c (ix86_expand_args_builtin): Rename last_arg_count
        flag to second_arg_count, handle 4 argument function type _COUNT
        aliases, handle second_arg_count on second argument rather than last.

2017-04-10  Jeff Law  <law@redhat.com>

        PR tree-optimization/80374
        * tree-ssa-dom.c (derive_equivalences_from_bit_ior): Do not try to
        record anything if we can not convert integer_zero_node to the
        desired type.

2017-04-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        PR target/80108
        * config/rs6000/rs6000.c (rs6000_option_override_internal):
        Enhance special handling given to the TARGET_P9_MINMAX option in
        relation to certain other options.

2017-04-10  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/80153
        * tree-ssa-loop-ivopts.c (add_iv_candidate_for_use): Check and
        remove POINTER_PLUS_EXPR's base part directly, rather than through
        aff_tree.

2017-04-10  Richard Biener  <rguenther@suse.de>
            Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/80153
        * tree-affine.c (aff_combination_to_tree): Get base pointer from
        the first element of pointer type aff_tree.  Build result expr in
        aff_tree's type.
        (add_elt_to_tree): Convert to type unconditionally.  Remove other
        fold_convert calls.
        * tree-ssa-loop-ivopts.c (alloc_iv): Pass in consistent types.
        (rewrite_use_nonlinear_expr): Check invariant using iv information.

2017-04-10  Richard Biener  <rguenther@suse.de>

        * tree-ssa-structalias.c (find_func_aliases): Properly handle
        asm inputs.

2017-04-10  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/70478
        * lra-constraints.c (curr_small_class_check): New.
        (update_and_check_small_class_inputs): New.
        (process_alt_operands): Update curr_small_class_check.  Disfavor
        alternative insn memory operands.  Check available regs for small
        class operands.

2017-03-31  Matthew Fortune  <matthew.fortune@imgtec.com>

        PR target/80057
        * config/mips/mips.opt (-mvirt): Update description.
        * doc/invoke.texi (-mvirt): Likewise.

2017-04-10  Richard Biener  <rguenther@suse.de>

        PR middle-end/80362
        * fold-const.c (fold_binary_loc): Look at unstripped ops when
        looking for NEGATE_EXPR in -A / -B to A / B folding.

2017-04-10  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/80224
        * gcov.c (print_usage): Fix usage string.
        (get_gcov_intermediate_filename): Remove.
        (output_gcov_file): Use both for normal and intermediate format.
        (generate_results): Do not initialize special file for
        intermediate format.

2017-04-10  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80304
        * tree-ssa-loop-im.c (ref_indep_loop_p_1): Also recurse
        for safelen.

2017-04-10  Nathan Sidwell  <nathan@acm.org>

        PR target/79905
        * config/rs6000/rs6000.c (rs6000_vector_type): New.
        (rs6000_init_builtins): Use it.

2016-04-10  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.md (<mrc>): Add mode to SET source.
        (<mrrc>): Likewise.

2017-04-10  Richard Biener  <rguenther@suse.de>

        PR middle-end/80344
        * gimplify.c (is_gimple_mem_rhs_or_call): Allow CLOBBERs.

2017-04-10  Jakub Jelinek  <jakub@redhat.com>

        PR target/80324
        * config/i386/avx512fintrin.h (_mm512_reduce_add_epi32,
        _mm512_reduce_mul_epi32, _mm512_reduce_and_epi32,
        _mm512_reduce_or_epi32, _mm512_mask_reduce_add_epi32,
        _mm512_mask_reduce_mul_epi32, _mm512_mask_reduce_and_epi32,
        _mm512_mask_reduce_or_epi32, _mm512_reduce_min_epi32,
        _mm512_reduce_max_epi32, _mm512_reduce_min_epu32,
        _mm512_reduce_max_epu32, _mm512_mask_reduce_min_epi32,
        _mm512_mask_reduce_max_epi32, _mm512_mask_reduce_min_epu32,
        _mm512_mask_reduce_max_epu32, _mm512_reduce_add_ps,
        _mm512_reduce_mul_ps, _mm512_mask_reduce_add_ps,
        _mm512_mask_reduce_mul_ps, _mm512_reduce_min_ps, _mm512_reduce_max_ps,
        _mm512_mask_reduce_min_ps, _mm512_mask_reduce_max_ps,
        _mm512_reduce_add_epi64, _mm512_reduce_mul_epi64,
        _mm512_reduce_and_epi64, _mm512_reduce_or_epi64,
        _mm512_mask_reduce_add_epi64, _mm512_mask_reduce_mul_epi64,
        _mm512_mask_reduce_and_epi64, _mm512_mask_reduce_or_epi64,
        _mm512_reduce_min_epi64, _mm512_reduce_max_epi64,
        _mm512_mask_reduce_min_epi64, _mm512_mask_reduce_max_epi64,
        _mm512_reduce_min_epu64, _mm512_reduce_max_epu64,
        _mm512_mask_reduce_min_epu64, _mm512_mask_reduce_max_epu64,
        _mm512_reduce_add_pd, _mm512_reduce_mul_pd, _mm512_mask_reduce_add_pd,
        _mm512_mask_reduce_mul_pd, _mm512_reduce_min_pd, _mm512_reduce_max_pd,
        _mm512_mask_reduce_min_pd, _mm512_mask_reduce_max_pd): New intrinsics.

2017-04-08  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/70478
        * lra-constraints.c: Reverse the last patch.

2017-04-08  Andreas Tobler  <andreast@gcc.gnu.org>

        * config/aarch64/aarch64-freebsd.h: Define MCOUNT_NAME.
        Add comment for WCHAR_T.

2017-04-08  Martin Liska  <mliska@suse.cz>

        Revert:
        2017-04-07  Martin Liska  <mliska@suse.cz>

        PR ipa/80212
        * ipa-split.c (split_function): Add function part to a same comdat
        group.

2017-04-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        PR target/80358
        * config/rs6000/rs6000.c (expand_block_compare): Fix boundary check.

2017-04-07  Pat Haugen  <pthaugen@us.ibm.com>

        * rs6000/rs6000.c (vec_load_pendulum): Rename...
        (vec_pairing): ...to this.
        (power9_sched_reorder2): Rewrite code for pairing vector/vecload insns.
        (rs6000_sched_init): Adjust for name change.
        (struct rs6000_sched_context): Likewise.
        (rs6000_init_sched_context): Likewise.
        (rs6000_set_sched_context): Likewise.

2017-04-07  Jakub Jelinek  <jakub@redhat.com>

        PR target/80322
        PR target/80323
        PR target/80325
        PR target/80326
        * config/i386/avxintrin.h (_mm256_cvtsd_f64, _mm256_cvtss_f32): New
        intrinsics.
        * config/i386/avx512fintrin.h (_mm512_int2mask, _mm512_mask2int,
        _mm512_abs_ps, _mm512_mask_abs_ps, _mm512_abs_pd, _mm512_mask_abs_pd,
        _mm512_cvtsd_f64, _mm512_cvtss_f32): Likewise.

2017-04-07  Andreas Tobler  <andreast@gcc.gnu.org>

        * config/aarch64/aarch64-freebsd.h: Define WCHAR_TYPE.

2017-04-07  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/70703
        * ira-color.c (update_conflict_hard_regno_costs): Use
        int64_t instead of HOST_WIDE_INT.

2017-04-07  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/70478
        * lra-constraints.c (process_alt_operands): Disfavor alternative
        insn memory operands.

2017-04-07  Jeff Law  <law@redhat.com>

        * config/iq2000/iq2000.c (final_prescan_insn): Do not separate a
        CALL and NOTE_INSN_CALL_ARG_LOCATION.

2017-04-07  Martin Liska  <mliska@suse.cz>

        PR target/79889
        * config/aarch64/aarch64.c (aarch64_process_target_attr):
        Show error message instead of an ICE.

2017-04-07  Martin Liska  <mliska@suse.cz>

        PR ipa/80212
        * ipa-split.c (split_function): Add function part to a same comdat
        group.

2017-04-07  Richard Biener  <rguenther@suse.de>

        PR middle-end/80341
        * tree.c (get_unwidened): Also handle ! for_type case for
        INTEGER_CSTs.
        * convert.c (do_narrow): Split out from ...
        (convert_to_integer_1): ... here.  Do not pass final truncation
        type to get_unwidened for TRUNC_DIV_EXPR.

2017-04-07  Richard Biener  <rguenther@suse.de>

        * tree-affine.c (wide_int_ext_for_comb): Take type rather
        than aff_tree.
        (aff_combination_const): Adjust.
        (aff_combination_scale): Likewise.
        (aff_combination_add_elt): Likewise.
        (aff_combination_add_cst): Likewise.
        (aff_combination_convert): Likewise.
        (add_elt_to_tree): Likewise.  Remove unused argument.
        (aff_combination_to_tree): Adjust calls to add_elt_to_tree.

2017-04-07  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * config/arm/arm.h (ARM_DEFAULT_SHORT_ENUMS): Provide default
        definition.
        * config/arm/arm.c (arm_default_short_enums): Use
        ARM_DEFAULT_SHORT_ENUMS.
        * config/arm/rtems.h (ARM_DEFAULT_SHORT_ENUMS): Define.

2017-04-06  Jakub Jelinek  <jakub@redhat.com>

        PR debug/80234
        * dwarf2out.c (gen_member_die): Handle C++17 inline static data
        members with redundant out-of-class redeclaration.

2017-04-06  Uros Bizjak  <ubizjak@gmail.com>

        PR target/80286
        * config/i386/sse.md (*vec_extractv4si_0_zext_sse4): New pattern.
        * config/i386/i386.md (*zero_extendsidi2):
        Add (?*x,*x) and (?*v,*v) alternatives.

2017-04-06  Uros Bizjak  <ubizjak@gmail.com>

        PR target/79733
        * config/i386/i386.c (ix86_expand_builtin)
        <case IX86_BUILTIN_K{,OR}TEST{C,Z}{8,16,32,64}>: Determine insn operand
        mode from insn data. Convert operands to insn operand mode.
        Copy operands that don't satisfy insn predicate to a register.

2017-04-06  Sam Thursfield  <sam.thursfield@codethink.co.uk>

        * config/rs6000/x-aix: Increase memory limit for genautomata on AIX.
        Update comments.

2017-04-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80334
        * tree-ssa-loop-ivopts.c (rewrite_use_address): Properly
        preserve alignment of accesses.

2017-04-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80262
        * tree-sra.c (build_ref_for_offset): Preserve address-space
        information.
        * tree-ssa-sccvn.c (vn_reference_maybe_forwprop_address):
        Drop useless address-space information on MEM_REF offsets.

2017-04-05  Andreas Schwab  <schwab@linux-m68k.org>

        * builtins.def (BUILT_IN_UPDATE_SETJMP_BUF): Fix type.

2017-04-05  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/70703
        * ira-color.c (update_conflict_hard_regno_costs): Use
        HOST_WIDE_INT instead of long.

2017-04-05  Uros Bizjak  <ubizjak@gmail.com>

        PR target/80298
        * config/i386/mmintrin.h: Add -msse target option when __SSE__ is
        not defined for x86_64 target.  Add -mmmx target option when __SSE2__
        is not defined.
        * config/i386/mm3dnow.h: Add -msse target when __SSE__ is not defined
        for x86_64 target.  Handle -m3dnowa option.

2017-04-05  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/70703
        * ira-color.c (update_costs_from_allocno): Use the smallest mode.
        (update_conflict_hard_regno_costs): Use long instead of unsigned
        arithmetic for cost calculation.

2017-04-05  Jakub Jelinek  <jakub@redhat.com>
            Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR sanitizer/80308
        * asan.c (asan_store_shadow_bytes): Fix location of last_chunk_value
        for big endian.

2017-04-05  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/78002
        * config/aarch64/aarch64.c (aarch64_emit_probe_stack_range): Replace
        ptr_mode with Pmode throughout.
        * config/aarch64/aarch64.md (probe_stack_range_<PTR:mode): Rename
        into probe_stack_range and use DImode.

2017-04-05  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        PR target/79890
        * config/s390/s390.c (s390_register_info_gprtofpr): Return if
        call_eh_return is true.

2017-04-05  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390-c.c (s390_resolve_overloaded_builtin):
        Initialize last_match_fntype_index.

2017-04-05  Jakub Jelinek  <jakub@redhat.com>

        PR target/80310
        * tree-nvr.c: Include internal-fn.h.
        (pass_return_slot::execute): Ignore internal calls without
        direct optab.

2017-04-04  Jakub Jelinek  <jakub@redhat.com>
            Richard Biener  <rguenther@suse.de>

        PR c++/80297
        * genmatch.c (capture::gen_transform): For GENERIC unshare_expr
        captures used multiple times, except for the last use.
        * generic-match-head.c: Include gimplify.h.

2017-04-04  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79390
        * target.h (struct noce_if_info): Declare.
        * targhooks.h (default_noce_conversion_profitable_p): Declare.
        * target.def (noce_conversion_profitable_p): New target hook.
        * ifcvt.h (struct noce_if_info): New type, moved from ...
        * ifcvt.c (struct noce_if_info): ... here.
        (noce_conversion_profitable_p): Renamed to ...
        (default_noce_conversion_profitable_p): ... this.  No longer
        static nor inline.
        (noce_try_store_flag_constants, noce_try_addcc,
        noce_try_store_flag_mask, noce_try_cmove, noce_try_cmove_arith,
        noce_convert_multiple_sets): Use targetm.noce_conversion_profitable_p
        instead of noce_conversion_profitable_p.
        * config/i386/i386.c: Include ifcvt.h.
        (ix86_option_override_internal): Don't override
        PARAM_MAX_RTL_IF_CONVERSION_INSNS default.
        (ix86_noce_conversion_profitable_p): New function.
        (TARGET_NOCE_CONVERSION_PROFITABLE_P): Redefine.
        * config/i386/x86-tune.def (X86_TUNE_ONE_IF_CONV_INSN): Adjust comment.
        * doc/tm.texi.in (TARGET_NOCE_CONVERSION_PROFITABLE_P): Add.
        * doc/tm.texi: Regenerated.

2017-04-04  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * doc/extend.texi (PowerPC AltiVec Built-in Functions): Grammar
        correction.

2017-04-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        PR target/80307
        * config/arm/arm.c (thumb1_rtx_costs): Give a cost of 32
        instructions for small multiply cores.

2017-04-04  Jeff Law  <law@redhat.com>

        * config/mips/mips.c (mips_multi_add): Zero initialize the newly
        added member.
        (mips_expand_vec_perm_const): Initialize elements in orig_perm
        that are not set by the loop over the elements.

2017-04-04  Jakub Jelinek  <jakub@redhat.com>

        PR target/80286
        * config/i386/i386.c (ix86_expand_args_builtin): If op has scalar
        int mode, convert_modes it to mode as unsigned, otherwise use
        lowpart_subreg to mode rather than SImode.
        * config/i386/sse.md (<mask_codefor>ashr<mode>3<mask_name>,
        ashr<mode>3, ashr<mode>3<mask_name>, <shift_insn><mode>3<mask_name>):
        Use DImode instead of SImode for the shift count operand.
        * config/i386/mmx.md (mmx_ashr<mode>3, mmx_<shift_insn><mode>3):
        Likewise.

2017-04-04  Richard Biener  <rguenther@suse.de>

        PR middle-end/80281
        * match.pd (A + (-B) -> A - B): Make sure to preserve unsigned
        arithmetic done for the negate or the plus.  Simplify.
        (A - (-B) -> A + B): Likewise.
        * fold-const.c (split_tree): Make sure to not negate pointers.

2017-04-04  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/60818
        * simplify-rtx.c (simplify_binary_operation_1): Do not replace
        a compare of comparisons with the thing compared if this results
        in a different machine mode.

2017-04-03  Jonathan Wakely  <jwakely@redhat.com>

        * alias.c (base_alias_check): Fix typo in comment.
        * cgraph.h (class ipa_polymorphic_call_context): Likewise.
        * cgraphunit.c (symbol_table::compile): Likewise.
        * collect2.c (maybe_run_lto_and_relink): Likewise.
        * config/arm/arm.c (arm_thumb1_mi_thunk): Likewise.
        * config/avr/avr-arch.h (avr_arch_info_t): Likewise.
        * config/avr/avr.c (avr_map_op_t): Likewise.
        * config/cr16/cr16.h (DATA_ALIGNMENT): Likewise.
        * config/epiphany/epiphany.c (TARGET_ARG_PARTIAL_BYTES): Likewise.
        * config/epiphany/epiphany.md (movcc): Likewise.
        * config/i386/i386.c (legitimize_pe_coff_extern_decl): Likewise.
        * config/m68k/m68k.c (struct _sched_ib, m68k_sched_variable_issue):
        Likewise.
        * config/mips/mips.c (mips_save_restore_reg): Likewise.
        * config/rx/rx.c (rx_is_restricted_memory_address): Likewise.
        * config/s390/s390.c (Z10_EARLYLOAD_DISTANCE): Likewise.
        * config/sh/sh.c (sh_rtx_costs): Likewise.
        * fold-const.c (fold_truth_andor): Likewise.
        * genautomata.c (collapse_flag): Likewise.
        * gengtype.h (struct type::u::s): Likewise.
        * gensupport.c (has_subst_attribute, add_mnemonic_string): Likewise.
        * input.c (FORMAT_AMOUNT): Likewise.
        * ipa-cp.c (class ipcp_lattice, agg_replacements_to_vector)
        (known_aggs_to_agg_replacement_list): Likewise.
        * ipa-inline-analysis.c: Likewise.
        * ipa-inline.h (estimate_edge_time, estimate_edge_hints): Likewise.
        * ipa-polymorphic-call.c
        (ipa_polymorphic_call_context::restrict_to_inner_class): Likewise.
        * loop-unroll.c (analyze_insn_to_expand_var): Likewise.
        * lra.c (lra_optional_reload_pseudos, lra_subreg_reload_pseudos):
        Likewise.
        * modulo-sched.c (apply_reg_moves): Likewise.
        * omp-expand.c (build_omp_regions_1): Likewise.
        * trans-mem.c (struct tm_wrapper_hasher): Likewise.
        * tree-ssa-loop-ivopts.c (may_eliminate_iv): Likewise.
        * tree-ssa-loop-niter.c (maybe_lower_iteration_bound): Likewise.
        * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Likewise.
        * value-prof.c: Likewise.
        * var-tracking.c (val_reset): Likewise.

2017-04-03  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80275
        * fold-const.c (split_address_to_core_and_offset): Handle
        POINTER_PLUS_EXPR.

2017-04-03  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-nested.c (get_descriptor_type): Make sure that the alignment of
        descriptors is at least equal to that of functions.

2017-04-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (movdi_to_sse): Add missing DONE.

2017-04-02  Uros Bizjak  <ubizjak@gmail.com>

        PR target/80250
        * config/i386/sse.md (mov<IMOD4:mode>): Remove insn pattern.
        (mov<IMOD4:mode>): New expander.
        (*mov<IMOD4:mode>_internal): New insn and split pattern.

2017-03-31  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/79405
        * fwprop.c (propagations_left): New variable.
        (forward_propagate_into): Decrement it.
        (fwprop_init): Initialize it.
        (fw_prop): If the variable has reached zero, stop propagating.
        (fwprop_addr): Ditto.

2017-03-31  Jakub Jelinek  <jakub@redhat.com>

        PR debug/79255
        * dwarf2out.c (decls_for_scope): If BLOCK_NONLOCALIZED_VAR is
        a FUNCTION_DECL, pass it as decl instead of origin to
        process_scope_var.

2017-03-31  Alexander Monakov  <amonakov@ispras.ru>

        * config/nvptx/nvptx.c (nvptx_output_softstack_switch): Correct format
        string.

2017-03-31  Pat Haugen  <pthaugen@us.ibm.com>

        PR target/80107
        * config/rs6000/rs6000.md (extendhi<mode>2): Add test for
        TARGET_VSX_SMALL_INTEGER.

2017-03-31  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * doc/extend.texi (PowerPC AltiVec Built-in Functions): Add
        reference to the OpenPOWER 64-Bit ELF V2 ABI Specification.

2017-03-31  Matthew Fortune  <matthew.fortune@imgtec.com>

        * config/mips/mips-msa.md (msa_vec_extract_<msafmt_f>): Update
        extraction from odd-numbered MSA register.

2017-03-31  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/80173
        * expmed.c (store_bit_field_1): Don't attempt to create
        a word subreg out of hard registers wider than word if they
        have HARD_REGNO_NREGS of 1 for their mode.

        PR middle-end/80163
        * varasm.c (initializer_constant_valid_p_1): Disallow sign-extending
        conversions to integer types wider than word and pointer.

        PR debug/80025
        * cselib.h (rtx_equal_for_cselib_1): Add depth argument.
        (rtx_equal_for_cselib_p): Pass 0 to it.
        * cselib.c (cselib_hasher::equal): Likewise.
        (rtx_equal_for_cselib_1): Add depth argument.  If depth
        is 128, don't look up VALUE locs and punt.  Increment
        depth in recursive calls when walking VALUE locs.

2017-03-31  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * gcov.c (md5sum_to_hex): Fix output of MD5 hex bytes.
        (make_gcov_file_name): Use the canonical path name for generating
        the MD5 value.
        (read_line): Fix handling of files with ascii null bytes.

2017-03-30  Matthew Fortune  <matthew.fortune@imgtec.com>

        * config/mips/mips.c (mips_expand_vector_init): Create a const_vector
        to initialise a vector register instead
        of using a const_int.

2017-03-30  Jakub Jelinek  <jakub@redhat.com>

        PR translation/80189
        * gimplify.c (omp_default_clause): Use %qs instead of %s in
        diagnostic messages.

2017-03-30  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/80246
        * config/rs6000/dfp.md (dfp_dxex_<mode>): Update mode of operand 0.
        (dfp_diex_<mode>): Update mode of operand 1.
        * doc/extend.texi (dxex, dxexq): Document change to return type.
        (diex, diexq): Document change to argument type.

2017-03-30  Martin Jambor  <mjambor@suse.cz>

        PR ipa/77333
        * cgraph.h (cgraph_build_function_type_skip_args): Declare.
        * cgraph.c (redirect_call_stmt_to_callee): Set gimple fntype so that
        it reflects the signature changes performed at the callee side.
        * cgraphclones.c (build_function_type_skip_args): Make public, renamed
        to cgraph_build_function_type_skip_args.
        (build_function_decl_skip_args): Adjust call to the above function.

2017-03-30  Jakub Jelinek  <jakub@redhat.com>

        PR target/80206
        * config/i386/sse.md
        (<extract_type>_vextract<shuffletype><extract_suf>_mask): Use
        register as dest whenever it is a MEM not rtx_equal_p to the
        corresponding dup operand, and when forcing into reg move the
        reg into the memory afterwards.
        (<extract_type_2>_vextract<shuffletype><extract_suf_2>_mask):
        Likewise.  Use <ssehalfvecmode> instead of <ssequartermode>
        for the force_reg mode.
        (avx512vl_vextractf128<mode>): Use register as dest either
        always when a MEM, or when it is a MEM not rtx_equal_p to the
        corresponding dup operand, or even not when it is a CONST_VECTOR
        depending on the mode and lo vs. hi.
        (avx512dq_vextract<shuffletype>64x2_1_maskm): Remove extraneous
        parens.
        (avx512f_vextract<shuffletype>32x4_1_maskm): Likewise.
        (<mask_codefor>avx512dq_vextract<shuffletype>64x2_1<mask_name>):
        Likewise.  Require that operands[2] is even.
        (<mask_codefor>avx512f_vextract<shuffletype>32x4_1<mask_name>):
        Remove extraneous parens.  Require that operands[2] is a multiple
        of 4.
        (vec_extract_lo_<mode><mask_name>): Don't bother testing if
        operands[0] is a MEM if <mask_applied>, the predicates/constraints
        disallow memory then.

2017-03-30  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77498
        * tree-ssa-pre.c (phi_translate_1): Do not allow simplifications
        to non-constants over backedges.

2017-03-29  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/80233
        * combine.c (combine_instructions): Only take NONDEBUG_INSN_P insns
        as last_combined_insn.  Do not test for BARRIER_P separately.

2017-03-29  Andreas Schwab  <schwab@suse.de>

        PR ada/80146
        * calls.c (prepare_call_address): Convert funexp to Pmode before
        copying to temp reg.

2017-03-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/80158
        * gimple-ssa-strength-reduction.c (replace_mult_candidate):
        Handle possible future case of more than one alternate
        interpretation.
        (replace_rhs_if_not_dup): Likewise.
        (replace_one_candidate): Likewise.

2017-03-28  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/80193
        * ira.c (ira): Do not check allocation for LRA.

2017-03-28  Alexander Monakov  <amonakov@ispras.ru>

        * config/nvptx/nvptx-protos.h (nvptx_output_simt_enter): Declare.
        (nvptx_output_simt_exit): Declare.
        * config/nvptx/nvptx.c (nvptx_init_unisimt_predicate): Use
        cfun->machine->unisimt_location.  Handle NULL unisimt_predicate.
        (init_softstack_frame): Move initialization of crtl->is_leaf to...
        (nvptx_declare_function_name): ...here.  Emit declaration of local
        memory space buffer for omp_simt_enter insn.
        (nvptx_output_unisimt_switch): New.
        (nvptx_output_softstack_switch): New.
        (nvptx_output_simt_enter): New.
        (nvptx_output_simt_exit): New.
        * config/nvptx/nvptx.h (struct machine_function): New fields
        has_simtreg, unisimt_location, simt_stack_size, simt_stack_align.
        * config/nvptx/nvptx.md (UNSPECV_SIMT_ENTER): New unspec.
        (UNSPECV_SIMT_EXIT): Ditto.
        (omp_simt_enter_insn): New insn.
        (omp_simt_enter): New expansion.
        (omp_simt_exit): New insn.
        * config/nvptx/nvptx.opt (msoft-stack-reserve-local): New option.

        * internal-fn.c (expand_GOMP_SIMT_ENTER): New.
        (expand_GOMP_SIMT_ENTER_ALLOC): New.
        (expand_GOMP_SIMT_EXIT): New.
        * internal-fn.def (GOMP_SIMT_ENTER): New internal function.
        (GOMP_SIMT_ENTER_ALLOC): Ditto.
        (GOMP_SIMT_EXIT): Ditto.
        * target-insns.def (omp_simt_enter): New insn.
        (omp_simt_exit): Ditto.
        * omp-low.c (struct omplow_simd_context): New fields simt_eargs,
        simt_dlist.
        (lower_rec_simd_input_clauses): Implement SIMT privatization.
        (lower_rec_input_clauses): Likewise.
        (lower_lastprivate_clauses): Handle SIMT privatization.

        * omp-offload.c: Include langhooks.h, tree-nested.h, stor-layout.h.
        (ompdevlow_adjust_simt_enter): New.
        (find_simtpriv_var_op): New.
        (execute_omp_device_lower): Handle IFN_GOMP_SIMT_ENTER,
        IFN_GOMP_SIMT_ENTER_ALLOC, IFN_GOMP_SIMT_EXIT.

        * tree-inline.h (struct copy_body_data): New field dst_simt_vars.
        * tree-inline.c (expand_call_inline): Handle SIMT privatization.
        (copy_decl_for_dup_finish): Ditto.

        * tree-ssa.c (execute_update_addresses_taken): Handle GOMP_SIMT_ENTER.

2017-03-28  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53383
        * config/i386/i386.c (ix86_option_override_internal): Always
        allow -mpreferred-stack-boundary=3 for 64-bit targets.

2017-03-28  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop.c (optimize_mask_stores): Add bb to the right loop.

2017-03-28  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop-manip.c (slpeel_add_loop_guard): New param and
        mark new edge's irreducible flag accordign to it.
        (vect_do_peeling): Check loop preheader edge's irreducible flag
        and pass it to function slpeel_add_loop_guard.

2017-03-28  Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/80218
        * tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds):
        Update block frequencies and counts.

2017-03-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78644
        * tree-ssa-ccp.c (evaluate_stmt): When we may not use the value
        of a simplification result we may not use it at all.

2017-03-28  Richard Biener  <rguenther@suse.de>

        PR ipa/80205
        * tree-inline.c (copy_phis_for_bb): Do not create PHI node
        without arguments, generate default definition of a SSA name.

2017-03-28  Richard Biener  <rguenther@suse.de>

        PR middle-end/80222
        * gimple-fold.c (gimple_fold_indirect_ref): Do not touch
        TYPE_REF_CAN_ALIAS_ALL references.
        * fold-const.c (fold_indirect_ref_1): Likewise.

2017-03-28  Martin Liska  <mliska@suse.cz>

        PR ipa/80104
        * cgraphunit.c (cgraph_node::expand_thunk): Mark argument of a
        thunk call as DECL_GIMPLE_REG_P when vector or complex type.

2017-03-28  Claudiu Zissulescu  <claziss@synopsys.com>
            Thomas Petazzoni  <thomas.petazzoni@free-electrons.com>

        * config/arc/arc.h (CPP_SPEC): Add subtarget_cpp_spec.
        (EXTRA_SPECS): Define.
        (SUBTARGET_EXTRA_SPECS): Likewise.
        (SUBTARGET_CPP_SPEC): Likewise.
        * config/arc/elf.h (EXTRA_SPECS): Renamed to
        SUBTARGET_EXTRA_SPECS.
        * config/arc/linux.h (SUBTARGET_CPP_SPEC): Define.

2017-03-28  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/simdext.md (vst64_insn): Update pattern.
        (vld32wh_insn): Likewise.
        (vld32wl_insn): Likewise.
        (vld64_insn): Likewise.
        (vld32_insn): Likewise.

2017-03-28  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/80067
        * fold-const.c (fold_comparison): Use protected_set_expr_location
        instead of SET_EXPR_LOCATION.

2017-03-28  Markus Trippelsdorf  <markus@trippelsdorf.de>

        * tree.c (add_expr): Avoid name lookup warning.

2017-03-27  Jeff Law  <law@redhat.com>

        PR tree-optimization/80216
        * tree-ssa-dom.c (derive_equivalences_from_bit_ior): Fix typo in
        function name.  Limit recursion depth.
        (record_temporary_equivalences): Corresponding changes.

2017-03-27  Jonathan Wakely  <jwakely@redhat.com>

        * doc/invoke.texi (-Wno-narrowing): Reorder so default behavior is
        covered first.

2017-03-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/80102
        * reg-notes.def (REG_CFA_NOTE): Define.  Use it for CFA related
        notes.
        * cfgcleanup.c (reg_note_cfa_p): New array.
        (insns_have_identical_cfa_notes): New function.
        (old_insns_match_p): Don't cross-jump in between /f
        and non-/f instructions.  If both i1 and i2 are frame related,
        verify all CFA notes, their order and content.

2017-03-27  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/78543
        * config/rs6000/rs6000.md (bswaphi2_extenddi): Combine bswap
        HImode and SImode with zero extend to DImode to one insn.
        (bswap<mode>2_extenddi): Likewise.
        (bswapsi2_extenddi): Likewise.
        (bswaphi2_extendsi): Likewise.
        (bswaphi2): Combine bswap HImode and SImode into one insn.
        Separate memory insns from swapping register.
        (bswapsi2): Likewise.
        (bswap<mode>2): Likewise.
        (bswaphi2_internal): Delete, no longer used.
        (bswapsi2_internal): Likewise.
        (bswap<mode>2_load): Split bswap HImode/SImode into separate load,
        store, and gpr<-gpr swap insns.
        (bswap<mode>2_store): Likewise.
        (bswaphi2_reg): Register only splitter, combine with the splitter.
        (bswaphi2 splitter): Likewise.
        (bswapsi2_reg): Likewise.
        (bswapsi2 splitter): Likewise.
        (bswapdi2): If we have the LDBRX and STDBRX instructions, split
        the insns into load, store, and register/register insns.
        (bswapdi2_ldbrx): Likewise.
        (bswapdi2_load): Likewise.
        (bswapdi2_store): Likewise.
        (bswapdi2_reg): Likewise.

2017-03-27  Gunther Nikl  <gnikl@users.sourceforge.net>

        * system.h (HAVE_DESIGNATED_INITIALIZERS): Fix non C++ case.
        (HAVE_DESIGNATED_UNION_INITIALIZERS): Likewise.

2017-03-27  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        PR target/80103
        * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Edit and
        add comments.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Add
        special handling for target option conflicts between dform
        options (-mpower9-dform, -mpower9-dform-vector,
        -mpower9-dform-scalar) and -mno-direct-move.

2017-03-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80181
        * tree-ssa-ccp.c (likely_value): UNDEFINED ^ X is UNDEFINED.

2017-03-27  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/predicates.md (move_double_src_operand): Replace the
        call to move_double_src_operand with a call to address_operand.

2017-03-27  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/elf.h (ARGET_ARC_TP_REGNO_DEFAULT): Define.
        * config/arc/linux.h (ARGET_ARC_TP_REGNO_DEFAULT): Likewise.
        * config/arc/arc.opt (mtp-regno): Use ARGET_ARC_TP_REGNO_DEFAULT.

2017-03-27  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/predicates.md (long_immediate_loadstore_operand):
        Consider scaled addresses cases.

2017-03-27  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_epilogue_uses): BLINK should be also
        restored when in interrupt.
        * config/arc/arc.md (simple_return): ARCv2 rtie instruction
        doesn't have delay slot.

2017-03-27  Richard Biener  <rguenther@suse.de>

        PR ipa/79776
        * tree-ssa-structalias.c (associate_varinfo_to_alias): Skip
        inlined thunk clones.

2017-03-27  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/80168
        * asan.c (instrument_derefs): Copy over last operand from
        original COMPONENT_REF to the new COMPONENT_REF with
        DECL_BIT_FIELD_REPRESENTATIVE.
        * ubsan.c (instrument_object_size): Likewise.

2017-03-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80170
        * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Make
        sure DR/SCEV didnt fold in constants we do not see when looking
        at the reference base alignment.

2017-03-27  Richard Biener  <rguenther@suse.de>

        PR middle-end/80171
        * gimple-fold.c (fold_ctor_reference): Properly guard against
        NULL return value from canonicalize_constructor_val.

2017-03-25  Uros Bizjak  <ubizjak@gmail.com>

        PR target/80180
        * config/i386/i386.c (ix86_expand_builtin)
        <IX86_BUILTIN_RDSEED{16,32,64}_STEP>: Do not expand arg0 between
        flags reg setting and flags reg using instructions.
        <IX86_BUILTIN_RDRAND{16,32,64}_STEP>: Ditto.  Use non-flags reg
        clobbering instructions to zero extend op2.

2017-03-25  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Configuration) <--with-aix-soname>:
        Update link to AIX ld.

2017-03-25  Bernd Schmidt  <bschmidt@redhat.com>

        PR rtl-optimization/80160
        PR rtl-optimization/80159
        * lra-assigns.c (must_not_spill_p): Tighten new test to also take
        reg_alternate_class into account.

2017-03-24  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/80148
        * lra-assigns.c (assign_by_spills): Add spilled non-reload pseudos
        to consider in curr_insn_transform.

2017-03-24  Jakub Jelinek  <jakub@redhat.com>

        * genrecog.c (validate_pattern): Add VEC_SELECT validation.
        * genmodes.c (emit_min_insn_modes_c): Call emit_mode_nunits
        and emit_mode_inner.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390-builtins.def: Add VXE builtins.  Add a flags
        argument to the overloaded builtin variants.  Use the new flag to
        deprecate certain builtin variants.
        * config/s390/s390-builtin-types.def: Add new builtin types.
        * config/s390/s390-builtins.h: Support new flags field for
        overloaded builtins.
        * config/s390/s390-c.c (OB_DEF_VAR): New flags field.
        (s390_macro_to_expand): Enable vector float data type.
        (s390_cpu_cpp_builtins_internal): Indicate support of the new
        builtins by incrementing the __VEC__ version number.
        (s390_expand_overloaded_builtin): Support expansion of vec_xl and
        vec_xst.
        (s390_resolve_overloaded_builtin): Emit error messages depending
        on the builtin flags.
        * config/s390/s390.c (s390_expand_builtin): Support additional
        flags argument.  Change error message to match the messages
        emitted in s390-c.c.
        * config/s390/s390.md: New UNSPEC_* constants.
        (op_type): Add new instruction types.
        * config/s390/vecintrin.h: Add new builtins and test data class
        constants.
        * config/s390/vx-builtins.md (V_HW_32_64): Add V4SF.
        (V_HW_4, VEC_HW, VECF_HW): New mode iterators.
        (VEC_INEXACT, VEC_NOINEXACT): New constants.
        ("vec_splats<mode>", "vec_insert<mode>", "vec_promote<mode>")
        ("vec_insert_and_zero<mode>", "vec_mergeh<mode>")
        ("vec_mergel<mode>"): V_HW -> VEC_HW.

        ("vlrlrv16qi", "vstrlrv16qi", "vbpermv16qi", "vec_msumv2di")
        ("vmslg", "*vftci<mode>_cconly", "vftci<mode>_intcconly")
        ("*vftci<mode>", "vftci<mode>_intcc", "vec_double_s64")
        ("vec_double_u64", "vfmin<mode>", "vfmax<mode>"): New definition.

        ("and_av2df3", "and_cv2df3", "vec_andc_av2df3")
        ("vec_andc_cv2df3", "xor_av2df3", "xor_cv2df3", "vec_nor_av2df3")
        ("vec_nor_cv2df3", "ior_av2df3", "ior_cv2df3", "vec_nabs")
        ("*vftcidb", "*vftcidb_cconly", "vftcidb"): Remove definition.

        ("vec_all_<fpcmpcc:code>v2df", "vec_any_<fpcmpcc:code>v2df")
        ("vec_scatter_elementv4si_DI", "vec_cmp<fpcmp:code>v2df")
        ("vec_di_to_df_s64", "vec_di_to_df_u64", "vec_df_to_di_u64")
        ("vfidb", "*vldeb", "*vledb", "*vec_cmp<insn_cmp>v2df_cconly")
        ("vec_cmpeqv2df_cc", "vec_cmpeqv2df_cc", "vec_cmphv2df_cc")
        ("vec_cmphev2df_cc", "*vec_cmpeqv2df_cc")
        ("*vec_cmphv2df_cc", "*vec_cmphev2df_cc"): Enable new modes as ...

        ("vec_all_<fpcmpcc:code><mode>", "vec_any_<fpcmpcc:code><mode>")
        ("vec_scatter_element<V_HW_4:mode>_DI")
        ("vec_cmp<fpcmp:code><mode>", "vcdgb", "vcdlgb", "vclgdb")
        ("vec_fpint<mode>", "vflls")
        ("vflrd", "*vec_cmp<insn_cmp><mode>_cconly", "vec_cmpeq<mode>_cc")
        ("vec_cmpeq<mode>_cc", "vec_cmph<mode>_cc", "vec_cmphe<mode>_cc")
        ("*vec_cmpeq<mode>_cc", "*vec_cmph<mode>_cc")
        ("*vec_cmphe<mode>_cc"): ... these.

        ("vec_ctd_s64", "vec_ctsl", "vec_ctul", "vec_st2f"): Use rounding
        mode constant instead of magic value.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_expand_vec_compare): Support other
        vector floating point modes than just V2DF.
        (s390_expand_vcond): Likewise.
        (s390_hard_regno_mode_ok): Allow SFmode values in VRs.
        (s390_cannot_change_mode_class): Prevent mode changes between TF
        and V1TF in vector registers.
        * config/s390/s390.md (DF, SF): New mode attributes.
        ("*cmp<mode>_ccs", "add<mode>3", "sub<mode>3", "mul<mode>3")
        ("fma<mode>4", "fms<mode>4", "div<mode>3", "*neg<mode>2"): Add
        SFmode support for VRs.
        * config/s390/vector.md (V_HW, V_HW2, VT_HW, ti*, nonvec): Add new
        vector fp modes.
        (VFT, VF_HW): New mode iterators.
        (vw, sdx): New mode attributes.
        ("addv2df3", "subv2df3", "mulv2df3", "divv2df3", "sqrtv2df2")
        ("fmav2df4","fmsv2df4", "negv2df2", "absv2df2", "*negabsv2df2")
        ("smaxv2df3", "sminv2df3", "*vec_cmp<VFCMP_HW_OP:code>v2df_nocc")
        ("vec_cmpuneqv2df", "vec_cmpltgtv2df", "vec_orderedv2df")
        ("vec_unorderedv2df"): Adjust the v2df only patterns to support
        also the new vector floating point modes.  Renaming to ...

        ("add<mode>3", "sub<mode>3", "mul<mode>3", "div<mode>3")
        ("sqrt<mode>2", "fma<mode>4", "fms<mode>4", "neg<mode>2")
        ("abs<mode>2", "negabs<mode>2", "smax<mode>3")
        ("smin<mode>3", "*vec_cmp<VFCMP_HW_OP:code><mode>_nocc")
        ("vec_cmpuneq<mode>", "vec_cmpltgt<mode>", "vec_ordered<mode>")
        ("vec_unordered<mode>"): ... these.

        ("neg_fma<mode>4", "neg_fms<mode>4", "*smax<mode>3_vxe")
        ("*smin<mode>3_vxe", "*sminv2df3_vx", "*vec_extendv4sf")
        ("*vec_extendv2df"): New insn definitions.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md ("*adddi3_sign", "*subdi3_sign", "mulditi3")
        ("mulditi3_2", "*muldi3_sign"): New patterns.
        ("muldi3", "*muldi3", "mulsi3", "*mulsi3"): Add an expander and
        rename the pattern definition.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md ("indirect_jump"): Turn insn definition into
        expander.
        ("*indirect_jump", "*indirect2_jump"): New pattern definitions.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_expand_vec_init): Use vllezl
        instruction if possible.
        * config/s390/vector.md (vec_halfnumelts): New mode
        attribute.
        ("*vec_vllezlf<mode>"): New pattern.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/vector.md ("popcountv16qi2", "popcountv8hi2")
        ("popcountv4si2", "popcountv2di2"): Rename to ...
        ("popcount<mode>2", "popcountv8hi2_vx", "popcountv4si2_vx")
        ("popcountv2di2_vx"): ... these and add !TARGET_VXE to the
        condition.
        ("popcount<mode>2_vxe"): New pattern.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * common/config/s390/s390-common.c (processor_flags_table): Add
        arch12.
        * config.gcc: Add arch12.
        * config/s390/driver-native.c (s390_host_detect_local_cpu):
        Default to arch12 for unknown CPU model numbers.
        * config/s390/s390-builtins.def: Add B_VXE builtin flag.
        * config/s390/s390-c.c (s390_cpu_cpp_builtins_internal): Adjust
        PROCESSOR_max sanity check.
        * config/s390/s390-opts.h (enum processor_type): Add
        PROCESSOR_ARCH12.
        * config/s390/s390.c (processor_table): Add arch12.
        (s390_expand_builtin): Add check for B_VXE flag.
        (s390_issue_rate): Add PROCESSOR_ARCH12.
        (s390_get_sched_attrmask): Likewise.
        (s390_get_unit_mask): Likewise.
        (s390_sched_score): Enable z13 scheduling for arch12.
        (s390_sched_reorder): Likewise.
        (s390_sched_variable_issue): Likewise.
        * config/s390/s390.h (enum processor_flags): Add PF_ARCH12 and
        PF_VXE.
        (s390_tune_attr): Use z13 scheduling also for arch12.
        (TARGET_CPU_ARCH12, TARGET_CPU_ARCH12_P, TARGET_CPU_VXE)
        (TARGET_CPU_VXE_P, TARGET_ARCH12, TARGET_ARCH12_P, TARGET_VXE)
        (TARGET_VXE_P): New macros.
        * config/s390/s390.md: Add arch12 to cpu attribute.  Add arch12
        and vxe to cpu_facility.  Add arch12 and vxe to enabled attribute.
        * config/s390/s390.opt: Add arch12 as processor_type.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md
        ("fixuns_truncdddi2", "fixuns_trunctddi2")
        ("fixuns_trunc<BFP:mode><GPR:mode>2"): Merge into ...
        ("fixuns_trunc<FP:mode><GPR:mode>2"): New expander.

        ("fixuns_trunc<BFP:mode><GPR:mode>2", "fixuns_trunc<mode>si2"):
        Rename expanders to ...

        ("fixuns_trunc<BFP:mode><GPR:mode>2_emu")
        ("fixuns_truncdddi2_emu"): ... these.

        ("fixuns_trunc<mode>si2_emu"): New expander.

        ("*fixuns_truncdfdi2_z13"): Rename to ...
        ("*fixuns_truncdfdi2_vx"): ... this.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/2964.md: Remove the single element vector compare
        instructions which are no longer used.
        * config/s390/s390.c (s390_select_ccmode): Remove handling of
        vector CCmodes.
        (s390_canonicalize_comparison): Remove handling of DFmode
        compares.
        (s390_expand_vec_compare_scalar): Remove function.
        (s390_emit_compare): Don't call s390_expand_vec_compare_scalar.
        * config/s390/s390.md ("*vec_cmp<insn_cmp>df_cconly"): Remove
        pattern.
        ("*cmp<mode>_ccs"): Add wfcdb instruction.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md ("mov<mode>_64dfp" DD_DF): Use vleig for loading a
        FP zero.
        ("*mov<mode>_64" DD_DF): Remove the vector instructions. These
        will anyway by matched by mov<mode>_64dfp.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md ("mov<mode>" SD_SF): Change vleg/vsteg to
        vlef/vstef.  Add missing operand to vleif.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_expand_vec_init): Enable vector load
        pair for all vector types with 64 bit elements.
        * config/s390/vx-builtins.md (V_HW_64): Move mode iterator to ...
        * config/s390/vector.md (V_HW_64): ... here.
        (V_128_NOSINGLE): New mode iterator.
        ("vec_init<V_HW:mode>"): Use V_128 as mode iterator.
        ("*vec_splat<mode>"): Use V_128_NOSINGLE mode iterator.
        ("*vec_tf_to_v1tf", "*vec_ti_to_v1ti"): New pattern definitions.
        ("*vec_load_pairv2di"): Change to ...
        ("*vec_load_pair<mode>"): ... this one.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/constraints.md: Add comments.
        (jKK): Reject element sizes > 8 bytes.
        * config/s390/s390.c (s390_split_ok_p): Enable splitting also for
        s_operands.
        * config/s390/s390.md: Add the s_operand checks formerly in
        s390_split_ok_p to various splitters where they are still
        required.
        * config/s390/vector.md ("mov<mode>" V_128): Add GPR alternatives
        for 128 bit vectors.  Plus two splitters.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md: Rename the cpu facilty vec to vx throughout
        the file.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/79893
        * config/s390/s390-c.c (s390_adjust_builtin_arglist): Issue an
        error if the boundary argument is not constant.

2017-03-24  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/80112
        * loop-doloop.c (doloop_condition_get): Don't check condition
        if cmp isn't SET with IF_THEN_ELSE src.

2017-03-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/80158
        * gimple-ssa-strength-reduction.c (replace_mult_candidate): When
        replacing a candidate statement, also replace it for the
        candidate's alternate interpretation.
        (replace_rhs_if_not_dup): Likewise.
        (replace_one_candidate): Likewise.

2017-03-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80167
        * graphite-isl-ast-to-gimple.c
        (translate_isl_ast_to_gimple::is_valid_rename): Handle default-defs
        properly.
        (translate_isl_ast_to_gimple::get_rename): Likewise.

2017-03-23  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/rs6000.c (rs6000_option_override_internal): Change
        handling of certain combinations of target options, including the
        combinations -mpower8-vector vs. -mno-vsx, -mpower9-vector vs.
        -mno-power8-vector, and -mpower9_dform vs. -mno-power9-vector.

2017-03-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/71436
        * config/arm/arm.md (*load_multiple): Add reload_completed to
        matching condition.

2017-03-23  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
            Richard Biener  <rguenth@suse.de>

        PR tree-optimization/79908
        PR tree-optimization/80136
        * tree-stdarg.c (expand_ifn_va_arg_1): For a VA_ARG whose LHS has
        been cast away, gimplify_and_add suffices.

2017-03-23  Markus Trippelsdorf  <markus@trippelsdorf.de>

        * tree-vrp.c (identify_jump_threads): Delete avail_exprs.

2017-03-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80032
        * gimplify.c (gimple_push_cleanup): Forced unconditional
        cleanups still have to go to the conditional_cleanups
        sequence.

2017-03-22  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/80072
        * tree-ssa-reassoc.c (struct operand_entry): Change id field type
        to unsigned int.
        (next_operand_entry_id): Change type to unsigned int.
        (sort_by_operand_rank): Make sure to return the right return value
        even if unsigned fields are bigger than INT_MAX.
        (struct oecount): Change cnt and id type to unsigned int.
        (oecount_hasher::equal): Formatting fix.
        (oecount_cmp): Make sure to return the right return value
        even if unsigned fields are bigger than INT_MAX.
        (undistribute_ops_list): Change next_oecount_id type to unsigned int.

        PR c++/80129
        * gimplify.c (gimplify_modify_expr_rhs) <case COND_EXPR>: Clear
        TREE_READONLY on result if writing it more than once.

        PR sanitizer/80110
        * doc/invoke.texi (-fsanitize=thread): Document that with
        -fnon-call-exceptions atomics are not able to throw
        exceptions.

        PR sanitizer/80110
        * tsan.c: Include tree-eh.h.
        (instrument_builtin_call): Call maybe_clean_eh_stmt or
        maybe_clean_or_replace_eh_stmt where needed.
        (instrument_memory_accesses): Add cfg_changed argument.
        Call gimple_purge_dead_eh_edges on each block and set *cfg_changed
        if it returned true.
        (tsan_pass): Adjust caller.  Return TODO_cleanup_cfg if cfg_changed.

        PR rtl-optimization/63191
        * config/i386/i386.c (ix86_delegitimize_address): Turn into small
        wrapper function, moved the whole old content into ...
        (ix86_delegitimize_address_1): ... this.  New inline function.
        (ix86_find_base_term): Use ix86_delegitimize_address_1 with
        true as last argument instead of ix86_delegitimize_address.

2017-03-22  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (generic_branch_cost): Copy
        cortexa57_branch_cost.

2017-03-22  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (generic_tunings): Add AES fusion.

2017-03-21  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        PR target/80123
        * doc/md.texi (Constraints): Document wA constraint.
        * config/rs6000/constraints.md (wA): New.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Add wA reg_class.
        (rs6000_init_hard_regno_mode_ok): Init wA constraint.
        * config/rs6000/rs6000.h (RS6000_CONSTRAINT_wA): New.
        * config/rs6000/vsx.md (vsx_splat_<mode>): Use wA constraint.

2017-03-22  Cesar Philippidis  <cesar@codesourcery.com>

        PR c++/80029
        * gimplify.c (is_oacc_declared): New function.
        (oacc_default_clause): Use it to set default flags for acc declared
        variables inside parallel regions.
        (gimplify_scan_omp_clauses): Strip firstprivate pointers for acc
        declared variables.
        (gimplify_oacc_declare): Gimplify the declare clauses.  Add the
        declare attribute to any decl as necessary.

2017-03-22  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        PR target/80082
        * config/arm/arm-isa.h (isa_bit_lpae): New feature bit.
        (ISA_ARMv7ve): Add isa_bit_lpae to the definition.
        * config/arm/arm-protos.h (arm_arch7ve): Rename into ...
        (arm_arch_lpae): This.
        * config/arm/arm.c (arm_arch7ve): Rename into ...
        (arm_arch_lpae): This.  Define it in term of isa_bit_lpae.
        * config/arm/arm.h (TARGET_HAVE_LPAE): Redefine in term of
        arm_arch_lpae.

2017-03-22  Martin Liska  <mliska@suse.cz>

        PR target/79906
        * config/rs6000/rs6000.c (rs6000_inner_target_options): Show
        error message instead of an ICE.

2017-03-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * doc/extend.texi (6.11 Additional Floating Types): Revise.

2017-03-21  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Add
        comments.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Add
        comments.

2017-03-21  Martin Sebor  <msebor@redhat.com>

        * doc/extend.texi: Use "cannot" instead of "can't."
        * doc/hostconfig.texi: Same.
        * doc/install.texi: Same.
        * doc/invoke.texi: Same.
        * doc/loop.texi: Same.
        * doc/md.texi: Same.
        * doc/objc.texi: Same.
        * doc/rtl.texi: Same.
        * doc/tm.texi: Same.
        * doc/tm.texi.in: Same.
        * doc/trouble.texi: Same.

2017-03-21  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/63238
        * dwarf2out.c (struct checksum_attributes): Add at_alignment.
        (collect_checksum_attributes): Set it.
        (die_checksum_ordered): Use it.

2017-03-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/79908
        * tree-stdarg.c (expand_ifn_va_arg_1): Revert the following
        change: For a VA_ARG whose LHS has been cast away, use
        force_gimple_operand to construct the side effects.

2017-03-21  David Malcolm  <dmalcolm@redhat.com>

        PR translation/80001
        * omp-offload.c (oacc_loop_fixed_partitions): Make diagnostics
        more amenable to translation.
        (oacc_loop_auto_partitions): Likewise.

2017-03-21  Marek Polacek  <polacek@redhat.com>
            Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/80109
        * gimple-ssa-warn-alloca.c (alloca_call_type): Only call get_range_info
        on INTEGRAL_TYPE_P.

2017-03-21  Jakub Jelinek  <jakub@redhat.com>
            Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/80125
        * combine.c (can_combine_p): Revert the 2017-03-20 change, only
        check reg_used_between_p between insn and one of succ or succ2
        depending on if succ is artificial insn not inserted into insn
        stream.

2017-03-21  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/80081
        * Makefile.in: Add gcov-dump and fix installation of gcov-tool.
        * doc/gcc.texi: Include gcov-dump stuff.
        * doc/gcov-dump.texi: New file.

2017-03-21  Toma Tabacu  <toma.tabacu@imgtec.com>

        PR rtl-optimization/79150
        * config/mips/mips.c (mips_block_move_loop): Emit a NOP after the
        conditional jump, if the jump is the last insn of the loop.

2017-03-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
            Richard Biener  <rguenth@suse.de>

        PR tree-optimization/79908
        * tree-stdarg.c (expand_ifn_va_arg_1): For a VA_ARG whose LHS has
        been cast away, use force_gimple_operand to construct the side
        effects.

2017-03-21  Martin Liska  <mliska@suse.cz>

        PR libfortran/79956
        * simplify-rtx.c (simplify_immed_subreg): Initialize a variable
        to NULL.

2017-03-21  Brad Spengler <spender@grsecurity.net>

        PR plugins/80094
        * plugin.c (htab_hash_plugin): New function.
        (add_new_plugin): Use it and adjust.
        (parse_plugin_arg_opt): Adjust.
        (init_one_plugin): Likewise.

2017-03-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80032
        * gimplify.c (gimple_push_cleanup): Add force_uncond parameter,
        if set force the cleanup to happen unconditionally.
        (gimplify_target_expr): Push inserted clobbers with force_uncond
        to avoid them being removed by control-dependent DCE.

2017-03-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80122
        * tree-inline.c (copy_bb): Do not expans va-arg packs or
        va_arg_pack_len when the inlined call stmt requires pack
        expansion itself.
        * tree-inline.h (struct copy_body_data): Make call_stmt a gcall *.

2017-03-21  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/78158
        * tsan.c (instrument_builtin_call): If the memory model argument
        is not a constant, assume it is valid.

        PR c/67338
        * fold-const.c (round_up_loc): Negate divisor in unsigned type to
        avoid UB.

2017-03-20  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/79910
        * combine.c (can_combine_p): Do not allow combining an I0 or I1
        if its dest is used by an insn before I2 (other than the combined
        insns themselves, which are properly handled already).

2017-03-20  Segher Boessenkool  <segher@kernel.crashing.org>

        Revert:
        2017-03-17  Bernd Schmidt  <bschmidt@redhat.com>

        * combine.c (record_used_regs): New static function.
        (try_combine): Handle situations where there is an additional
        instruction between I2 and I3 which needs to have a LOG_LINK
        updated.

        Revert:
        2017-03-17  Jim Wilson  <jim.wilson@linaro.org>

        * combine.c (try_combine): Delete redundant i1 test.  Call
        prev_nonnote_nondebug_insn instead of prev_nonnote_insn.

2017-03-20  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        PR target/80083
        * config/rs6000/rs6000.md (*movsi_internal1): Fix constraints for
        alternatives 13/14.

2017-03-20  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/80054
        * gimple-ssa-strength-reduction.c (all_phi_incrs_profitable): Fail
        the optimization if a PHI or any of its arguments is not dominated
        by the candidate's basis.  Use gphi* rather than gimple* as
        appropriate.
        (replace_profitable_candidates): Clean up a gimple* variable that
        should be a gphi* variable.

2017-03-20  Martin Sebor  <msebor@redhat.com>

        PR c++/52477
        * doc/extend.texi (attribute constructor): Document present limitation.

2017-03-20  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        PR target/79963
        * config/rs6000/altivec.h (vec_all_ne): Under __cplusplus__ and
        __POWER9_VECTOR__ #ifdef control, change template definition to
        use Power9-specific built-in function.
        (vec_any_eq): Likewise.
        * config/rs6000/vector.md (vector_ae_v2di_p): Change the flag used
        to control outcomes from this test.
        (vector_ae_<mode>p): For VEC_F modes, likewise.

2017-03-20  Ian Lance Taylor  <iant@google.com>

        * config/i386/i386.c (ix86_function_regparm): Save an extra
        register for -fsplit-stack with DECL_STATIC_CHAIN.

2017-03-17  Palmer Dabbelt  <palmer@dabbelt.com>

        PR target/79912
        * config/riscv/riscv.c (riscv_preferred_reload_class): Remove.
        (TARGET_PREFERRED_RELOAD_CLASS): Likewise.

2017-03-17  Palmer Dabbelt  <palmer@dabbelt.com>

        * config/riscv/riscv.c (riscv_print_operand): Use "fence
        iorw,ow".
        * config/riscv/sync.mc (mem_thread_fence_1): Use "fence
        iorw,iorw".

2017-03-20  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/80063
        * asan.c (DEF_SANITIZER_BUILTIN): Use do { } while (0).

2017-03-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80113
        * graphite-isl-ast-to-gimple.c (copy_loop_phi_nodes): Do not
        allocate extra SSA name for PHI def.
        (add_close_phis_to_outer_loops): Likewise.
        (add_close_phis_to_merge_points): Likewise.
        (copy_loop_close_phi_args): Likewise.
        (copy_cond_phi_nodes): Likewise.

2017-03-20  Martin Liska  <mliska@suse.cz>

        PR middle-end/79753
        * tree-chkp.c (chkp_build_returned_bound): Do not build
        returned bounds for a LHS that's not a BOUNDED_P type.

2017-03-20  Martin Liska  <mliska@suse.cz>

        PR target/79769
        PR target/79770
        * tree-chkp.c (chkp_find_bounds_1): Handle REAL_CST,
        COMPLEX_CST and VECTOR_CST.

2017-03-20  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/78857
        * config/s390/s390.md ("cmp<mode>_ccs_0"): Add a clobber of the
        target operand.  A new splitter adds the clobber statement in case
        the target operand is dead anyway.

2017-03-19  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Specific) <sparc-*-linux*>: No longer refer
        to age-old versions of binutils and glibc.

2017-03-18  Segher Boessenkool  <segher@kernel.crashing.org>

        * doc/contrib.texi (Contributors): Remove duplicate entry for myself.

2017-03-18  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/contrib.texi (Contributors): Add Segher Boessenkool.

2017-03-18  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Specific) <arm-*-eabi>: Remove old
        requirement for binutils 2.13.

2017-03-17  Jim Wilson  <jim.wilson@linaro.org>

        * combine.c (try_combine): Delete redundant i1 test.  Call
        prev_nonnote_nondebug_insn instead of prev_nonnote_insn.

2017-03-17  Palmer Dabbelt  <palmer@dabbelt.com

        * doc/install.texi (Specific) <riscv32-*-elf>: Add riscv32-*-elf,
        riscv32-*-linux, riscv64-*-elf, riscv64-*-linux to the table of
        contents.
        <riscv64-*-elf>: Re-arrange section
        <riscv32-*-elf>: Add a note about requiring binutils 2.28.
        <riscv32-*-linux>: Likewise.
        <riscv64-*-elf>: Likewise
        <riscv64-*-linux>: Likewise.

2017-03-17  Richard Earnshaw  <rearnsha@arm.com>

        PR target/80052
        * aarch64.opt(verbose-cost-dump): Fix typo.

2017-03-17  Pat Haugen  <pthaugen@us.ibm.com>

        PR target/79951
        * config/rs6000/rs6000.md (copysign<mode>3_fcpsgn): Test
        for VECTOR_UNIT_VSX_P (<MODE>mode) too.

2017-03-17  Bernd Schmidt  <bschmidt@redhat.com>

        * reload.c (find_reloads): When reloading a nonoffsettable address,
        use RELOAD_OTHER for it and its address reloads.

        PR rtl-optimization/79910
        * combine.c (record_used_regs): New static function.
        (try_combine): Handle situations where there is an additional
        instruction between I2 and I3 which needs to have a LOG_LINK
        updated.

2017-03-17  Jeff Law  <law@redhat.com>

        PR tree-optimization/71437
        * tree-vrp.c (simplify_stmt_for_jump_threading): Lookup the
        conditional in the hash table first.
        (vrp_dom_walker::before_dom_children): Extract condition from
        ASSERT_EXPR.  Record condition, its inverion and any implied
        conditions as well.

2017-03-17  Marek Polacek  <polacek@redhat.com>
            Markus Trippelsdorf  <markus@trippelsdorf.de>

        PR tree-optimization/80079
        * gimple-ssa-store-merging.c (class pass_store_merging): Initialize
        m_stores_head.

2017-03-17  Richard Biener  <rguenther@suse.de>

        PR middle-end/80075
        * tree-eh.c (stmt_could_throw_1_p): Only handle gimple assigns.
        Properly verify the LHS before the RHS possibly claims to be
        handled.
        (stmt_could_throw_p): Hande gimple conds fully here.  Clobbers
        do not throw.

2017-03-17  Martin Jambor  <mjambor@suse.cz>

        * doc/invoke.texi (Option Options): Include -fipa-vrp in the list.
        (List of -O2 options): Likewise.
        (-fipa-bit-cp): Replace "ipa" with "interprocedural."
        (-fipa-vrp) New.

2017-03-17  Tom de Vries  <tom@codesourcery.com>

        * gcov-dump.c (print_usage): Print bug_report_url.

2017-03-17  Richard Biener  <rguenther@suse.de>

        PR middle-end/80050
        * genmatch.c (parser::next): Remove pointless check for CPP_EOF.
        (parser::peek): Likewise.

2017-03-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80048
        * sese.c (free_sese_info): Properly release rename_map and
        copied_bb_map elements.

2017-03-16  Alexandre Oliva  <aoliva@redhat.com>

        * gimple-ssa-store-merging.c (struct imm_store_chain_info):
        Add linked-list forward and backlinks.  Insert on
        construction, remove on destruction.
        (class pass_store_merging): Add m_stores_head field.
        (pass_store_merging::terminate_and_process_all_chains):
        Iterate over m_stores_head list.
        (pass_store_merging::terminate_all_aliasing_chains):
        Likewise.
        (pass_store_merging::execute): Check for debug stmts first.
        Push new chains onto the m_stores_head stack.

2017-03-16  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/71294
        * config/rs6000/vsx.md (vsx_splat_<mode>, VSX_D iterator): Allow a
        SPLAT operation on ISA 2.07 64-bit systems that have direct move,
        but no MTVSRDD support, by doing MTVSRD and XXPERMDI.

2017-03-16  Jeff Law  <law@redhat.com>

        PR tree-optimization/71437
        * tree-ssa-dom.c (dom_opt_dom_walker): Remove thread_across_edge
        member function.  Implementation moved into after_dom_children
        member function and into the threader's thread_outgoing_edges
        function.
        (dom_opt_dom_walker::after_dom_children): Simplify by moving
        some code into new thread_outgoing_edges.
        * tree-ssa-threadedge.c (thread_across_edge): Make static and simplify
        definition.  Simplify marker handling (do it here).   Assume we always
        have the available expression and the const/copies tables.
        (thread_outgoing_edges): New function extracted from tree-ssa-dom.c
        and tree-vrp.c
        * tree-ssa-threadedge.h (thread_outgoing_edges): Declare.
        * tree-vrp.c (equiv_stack): No longer file scoped.
        (vrp_dom_walker): New class.
        (vrp_dom_walker::before_dom_children): New member function.
        (vrp_dom_walker::after_dom_children): Likewise.
        (identify_jump_threads):  Setup domwalker.  Use it rather than
        walking edges in a random order by hand.  Simplify setup/finalization.
        (finalize_jump_threads): Remove.
        (vrp_finalize): Do not call identify_jump_threads here.
        (execute_vrp): Do it here instead and call thread_through_all_blocks
        here too.

        PR tree-optimization/71437
        * tree-ssa-dom.c (pfn_simplify): Add basic_block argument.  All
        callers changed.
        (simplify_stmt_for_jump_threading): Add basic_block argument.  All
        callers changed.
        (lhs_of_dominating_assert): Moved from here into tree-vrp.c.
        (dom_opt_dom_walker::thread_across_edge): Remove
        handle_dominating_asserts argument.  All callers changed.
        (record_temporary_equivalences_from_stmts_at_dest): Corresponding
        changes.  Remove calls to lhs_of_dominating_assert.  Other
        uses of handle_dominating_asserts turn into unconditional code
        (simplify_control_stmt_condition_1): Likewise.
        (simplify_control_stmt_condition): Likewise.
        (thread_through_normal_block, thread_across_edge): Likewise.
        * tree-ssa-threadedge.h (thread_across_edge): Corresponding changes.
        * tree-vrp.c (lhs_of_dominating_assert): Move here.  Return original
        object if it is not an SSA_NAME.
        (simplify_stmt_for_jump_threading): Call lhs_of_dominating_assert
        before calling into the VRP specific simplifiers.
        (identify_jump_threads): Remove handle_dominating_asserts
        argument.

2017-03-16  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/79886
        * tree-diagnostic.c (default_tree_printer): No longer static.
        * tree-diagnostic.h (default_tree_printer): New prototype.

2017-03-16  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-simd.md (*aarch64_simd_mov<mode>)
        Change ins into fmov.

2017-03-16  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/iterators.md (h_con): Return "x" for V4HF and V8HF.
        * config/aarch64/aarch64-simd.md (*aarch64_fma4_elt_from_dup<mode>):
        Use h_con constraint for operand 1.
        (*aarch64_fnma4_elt_from_dup<mode>): Likewise.
        (*aarch64_mulx_elt_from_dup<mode>): Likewise for operand 2.

2017-03-15  Jeff Law  <law@redhat.com>

        PR tree-optimization/71437
        * tree-ssa-dom.c (derive_equivalences_from_bit_ior): New function.
        (record_temporary_equivalences): Use it.

        PR tree-optimization/71437
        * tree-ssa-dom.c (struct cond_equivalence): Moved from here into
        tree-ssa-scopedtables.
        (lookup_avail_expr, build_and_record_new_cond): Likewise.
        (record_conditions, record_cond, vuse_eq): Likewise.
        (record_edge_info): Adjust to API tweak of record_conditions.
        (simplify_stmt_for_jump_threading): Similarly for lookup_avail_expr.
        (record_temporary_equivalences, optimize_stmt): Likewise.
        (eliminate_redundant_computations): Likewise.
        (record_equivalences_from_stmt): Likewise.
        * tree-ssa-scopedtables.c: Include options.h and params.h.
        (vuse_eq): New function, moved from tree-ssa-dom.c
        (build_and_record_new_cond): Likewise.
        (record_conditions): Likewise.  Accept vector of conditions rather
        than edge_equivalence structure for first argument.
        for the first argument.
        (avail_exprs_stack::lookup_avail_expr): New member function, moved
        from tree-ssa-dom.c.
        (avail_exprs_stack::record_cond): Likewise.
        * tree-ssa-scopedtables.h (struct cond_equivalence): Moved here
        from tree-ssa-dom.c.
        (avail_exprs_stack): Add new member functions lookup_avail_expr
        and record_cond.
        (record_conditions): Declare.

2017-03-15  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/80017
        * lra-constraints.c (process_alt_operands): Increase reject for
        reloading an input/output operand.

2017-03-15  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/79038
        * config/rs6000/rs6000.md (float<QHI:mode><IEEE128:mode>2): Define
        insns to convert from signed/unsigned char/short to IEEE 128-bit
        floating point.
        (floatuns<QHI:mode><IEEE128:mode>2): Likewise.

2017-03-15  Uros Bizjak  <ubizjak@gmail.com>

        PR target/80019
        * config/i386/i386.c (ix86_vector_duplicate_value): Create
        subreg of inner mode for values already in registers.

2017-03-15  Bernd Schmidt  <bschmidt@redhat.com>

        * config/c6x/c6x.c (hwloop_optimize): Handle case where the old
        iteration reg is used after the loop.

2017-03-14  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/79800
        * gimple-ssa-sprintf.c (format_floating: Add argument.  Handle
        precision in negative-positive range.
        (format_floating): Call non-const overload with adjusted precision.

2017-03-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/79947
        * config/rs6000/rs6000.h (TARGET_FRSQRTES): Add check for
        -mpowerpc-gfxopt.

2017-03-14  Martin Sebor  <msebor@redhat.com>

        PR middle-end/80020
        * builtin-attrs.def (ATTR_ALLOC_SIZE_2_NOTHROW_LIST): New macro.
        * builtins.def (aligned_alloc): Use it.

        PR c/79936
        * Makefile.in (GTFILES): Add calls.c.
        * calls.c: Include "gt-calls.h".

2017-03-14  Bernd Schmidt  <bschmidt@redhat.com>

        PR rtl-optimization/79728
        * regs.h (struct target_regs): New field
        x_contains_allocatable_regs_of_mode.
        (contains_allocatable_regs_of_mode): New macro.
        * reginfo.c (init_reg_sets_1): Initialize it, and change
        contains_reg_of_mode so it includes global regs as well.
        * reload.c (push_reload): Use contains_allocatable_regs_of_mode
        rather than contains_regs_of_mode.

2017-03-14  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi: Document options that can't be combined with
        -fcheck-pointer-bounds.

2017-03-14  Martin Liska  <mliska@suse.cz>

        PR middle-end/79831
        * doc/invoke.texi (-Wchkp): Document the option.

2017-03-14  Martin Liska  <mliska@suse.cz>

        * Makefile.in: Install gcov-dump.

2017-03-14  Martin Liska  <mliska@suse.cz>

        * multiple_target.c (expand_target_clones): Bail out for
        an invalid attribute.

2017-03-14  Richard Biener  <rguenther@suse.de>

        * alias.c (struct alias_set_entry): Pack properly.
        * cfgloop.h (struct loop): Likewise.
        * cse.c (struct set): Likewise.
        * ipa-utils.c (struct searchc_env): Likewise.
        * loop-invariant.c (struct invariant): Likewise.
        * lra-remat.c (struct cand): Likewise.
        * recog.c (struct change_t): Likewise.
        * rtl.h (struct address_info): Likewise.
        * symbol-summary.h (function_summary): Likewise.
        * tree-loop-distribution.c (struct partition): Likewise.
        * tree-object-size.c (struct object_size_info): Likewise.
        * tree-ssa-loop-ivopts.c (struct cost_pair): Likewise.
        * tree-ssa-threadupdate.c (struct ssa_local_info_t): Likewise.
        * tree-vect-data-refs.c (struct _vect_peel_info): Likewise.
        * tree-vect-slp.c (struct _slp_oprnd_info): Likewise.
        * tree-vect-stmts.c (struct simd_call_arg_info): Likewise.
        * tree-vectorizer.h (struct _loop_vec_info): Likewise.
        (struct _stmt_vec_info): Likewise.

2017-03-14  Martin Liska  <mliska@suse.cz>

        PR target/79892
        * multiple_target.c (create_dispatcher_calls): Check that
        a target can create a function dispatcher.

2017-03-14  Martin Liska  <mliska@suse.cz>

        PR lto/66295
        * multiple_target.c (expand_target_clones): Drop local.local
        flag for default implementation.

2017-03-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80030
        * tree-vect-stmts.c (vectorizable_store): Plug memleak.

2017-03-13  Kito Cheng  <kito.cheng@gmail.com>

        * config/riscv/riscv.c (riscv_emit_float_compare>: Use
        gcc_fallthrough() instead of __attribute__((fallthrough));

2017-03-13  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/gcc.texi: Remove "up" link to (DIR).
        * doc/gccint.texi: Ditto.

2017-03-13  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Specific) <avr>: Remove reference to
        binutils 2.13.

2017-03-13  Jeff Law  <law@redhat.com>

        * config/riscv/riscv.c (riscv_emit_float_compare): Use fallthru
        attribute rather than comments.

        * config/pdp11/pdp11.md (movmemhi): Adjust operand numbers to
        match_scratch operand is highest.

2017-03-13  Martin Liska  <mliska@suse.cz>

        PR middle-end/78339
        * ipa-pure-const.c (warn_function_noreturn): If the declarations
        is a CHKP clone, use original declaration.

2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_init): Use multiplier whenever we have it.
        (arc_conditional_register_usage): Use a different allocation order
        when optimizing for size.
        * common/config/arc/arc-common.c (arc_option_optimization_table):
        Section anchors default on when optimizing for size.

2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (*tst_bitfield_tst): Fix pattern.

2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_output_addsi): Emit code density adds.
        * config/arc/arc.md (cpu_facility): Add cd variant.
        (*movqi_insn): Add code density variant.
        (*movhi_insn): Likewise.
        (*movqi_insn): Likewise.
        (*addsi3_mixed): Likewise.
        (subsi3_insn): Likewise.

2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (movsi_cond_exec): Update constraint.

2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_legitimize_pic_address): Handle PIC
        expressions with MINUS and UNARY ops.

2017-03-13  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/79911
        * config/arm/neon.md (vec_sel_widen_ssum_lo<VQI:mode><VW:mode>3):
        Rename to...
        (vec_sel_widen_ssum_lo<mode><V_half>3): ... This. Avoid mismatch
        between vec_select and vector argument.
        (vec_sel_widen_ssum_hi<VQI:mode><VW:mode>3): Rename to...
        (vec_sel_widen_ssum_hi<mode><V_half>3): ... This. Likewise.
        (vec_sel_widen_usum_lo<VQI:mode><VW:mode>3): Rename to...
        (vec_sel_widen_usum_lo<mode><V_half>3): ... This.
        (vec_sel_widen_usum_hi<VQI:mode><VW:mode>3): Rename to...
        (vec_sel_widen_usum_hi<mode><V_half>3): ... This.

2017-03-13  Richard Biener  <rguenther@suse.de>

        PR other/79991
        * params.def (vect-max-peeling-for-alignment): Fix typo.

2017-03-12  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Specific) <mips-*-*>: Remove description of
        issue that only occurred with binutils below 2.18.

2017-03-12  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Specific) <cris-axis-elf>: No longer
        refer to binutils 2.11/2.12 minimum.

2017-03-12  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Specific) <powerpc-*-*>: Remove link to
        ftp.kernel.org and simplify binutils requirement.

2017-03-11  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/invoke.texi (Warning Options): Fix spelling of link-time
        optimization.
        (Optimize Options): Ditto.  Also remove redundancy.

2017-03-10  David Malcolm  <dmalcolm@redhat.com>

        PR translation/79848
        * ipa-devirt.c (warn_types_mismatch): Simplify uses of "%<%s%>" to
        "%qs".
        * ipa-pure-const.c (suggest_attribute): Likewise.  Convert _
        to G_ to avoid double translation.

2017-03-10  David Malcolm  <dmalcolm@redhat.com>

        PR translation/79923
        * auto-profile.c (get_combined_location): Convert leading
        character of diagnostics to lower case and remove trailing period.
        (read_profile): Likewise for various diagnostics.
        * config/arm/arm.c (arm_option_override): Remove trailing period
        from various diagnostics.
        * config/msp430/msp430.c (msp430_expand_delay_cycles): Likewise.
        (msp430_expand_delay_cycles): Likewise.

2017-03-10  David Malcolm  <dmalcolm@redhat.com>

        PR target/79925
        * config/aarch64/aarch64.c (aarch64_validate_mcpu): Quote the
        full command-line argument, rather than just "str".
        (aarch64_validate_march): Likewise.
        (aarch64_validate_mtune): Likewise.

2017-03-10  Bernd Schmidt  <bschmidt@redhat.com>

        PR rtl-optimization/78911
        * lra-assigns.c (must_not_spill_p): New function.
        (spill_for): Use it.

2017-03-10  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79981
        * tree-vrp.c (extract_range_basic): Handle IMAGPART_EXPR of
        ATOMIC_COMPARE_EXCHANGE ifn result.
        (stmt_interesting_for_vrp, vrp_visit_stmt): Handle
        IFN_ATOMIC_COMPARE_EXCHANGE.

2017-03-10  David Malcolm  <dmalcolm@redhat.com>

        PR driver/79875
        * opts.c (parse_sanitizer_options): Add missing question mark to
        "did you mean" message.

2017-03-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000-builtin.def (VMULEUB_UNS): Remove orphaned
        built-in.
        (VMULEUH_UNS): Likewise.
        (VMULOUB_UNS): Likewise.
        (VMULOUH_UNS): Likewise.
        * config/rs6000/rs6000.c (builtin_function_type): Remove
        references to ALTIVEC_BUILTIN_VMUL[EO]U[BH]_UNS.

2017-03-10  David Malcolm  <dmalcolm@redhat.com>

        PR bootstrap/79952
        * read-rtl-function.c (function_reader::read_rtx_operand): Update
        x with result of extra_parsing_for_operand_code_0.
        (function_reader::extra_parsing_for_operand_code_0): Convert
        return type from void to rtx, returning x.  When reading
        SYMBOL_REF with SYMBOL_FLAG_HAS_BLOCK_INFO, reallocate x to the
        larger size containing struct block_symbol.

2017-03-10  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_option_override_internal): Disallow
        -mfloat128-hardware without -m64.

2017-03-10  Will Schmidt <will_schmidt@vnet.ibm.com>

        PR target/79941
        * config/rs6000/rs6000.c (builtin_function_type): Add VMUL*U[HB]
        entries to the case statement that marks unsigned arguments to
        overloaded functions.

2017-03-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/rs6000.c (rs6000_option_override_internal): Fix
        two typographic errors in the handling of TARGET_UPPER_REGS_DI.

2017-03-10  Pat Haugen  <pthaugen@us.ibm.com>

        PR target/79907
        * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Test
        TARGET_UPPER_REGS_DI when setting 'wi' constraint regclass.

2017-03-10  Martin Liska  <mliska@suse.cz>

        PR target/65705
        PR target/69804
        * toplev.c (process_options): Enable MPX with LSAN and UBSAN.
        * tree-chkp.c (chkp_walk_pointer_assignments): Verify that
        FIELD != NULL.

2017-03-10  Olivier Hainque  <hainque@adacore.com>

        * tree-switch-conversion (array_value_type): Start by resetting
        candidate type to it's main variant.

2017-03-10  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/79909
        * combine.c (try_combine): Use simplify_replace_rtx on individual
        CALL_INSN_FUNCTION_USAGE elements instead of replace_rtx on copy_rtx
        of the whole CALL_INSN_FUNCTION_USAGE.

        PR tree-optimization/79972
        * gimple-ssa-warn-alloca.c (alloca_call_type): Only call
        get_range_info on SSA_NAMEs.  Formatting fixes.

2017-03-10  Richard Biener  <rguenther@suse.de>
            Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/77975
        * tree-ssa-loop-niter.c (get_base_for): Allow phi argument from latch
        edge to be constant.
        (get_val_for): For constant x return it.  Formatting fix.
        (loop_niter_by_eval): Avoid pointless looping if the next iteration
        would use the same bases as the current one.

2017-03-09  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gen_le_vsx_permute): Use rotate
        instead of vec_select for V1TImode.
        * conifg/rs6000/vsx.md (VSX_LE): Remove mode iterator that is no
        longer needed.
        (VSX_LE_128): Add V1TI to this mode iterator.
        (*vsx_le_perm_load_<mode>): Change to use VSX_D mode iterator.
        (*vsx_le_perm_store_<mode>): Likewise.
        (pre-reload splitter for VSX stores): Likewise.
        (post-reload splitter for VSX stores): Likewise.
        (*vsx_xxpermdi2_le_<mode>): Likewise.
        (*vsx_lxvd2x2_le_<mode>): Likewise.
        (*vsx_stxvd2x2_le_<mode>): Likewise.

2017-03-09  Michael Eager  <eager@eagercon.com>

        Correct failures with --enable-checking=yes,rtl.

        * config/microblaze/microblaze.c (microblaze_expand_shift):
        Replace GET_CODE test with CONST_INT_P and INTVAL test with
        test for const0_rtx.
        * config/microblaze/microblaze.md (ashlsi3_byone, ashrsi3_byone,
        lshrsi3_byone): Replace INTVAL with test for const1_rtx.

2017-03-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79977
        * graphite-scop-detection.c (scop_detection::merge_sese):
        Handle the case of extra exits to blocks dominating the entry.

2017-03-09  Toma Tabacu  <toma.tabacu@imgtec.com>

        * doc/sourcebuild.texi (Effective-Target Keywords, Other attributes):
        Document rdynamic.

2017-03-09  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/79949
        * lra-constraints.c (process_alt_operands): Check memory when
        trying to predict a cycle.  Print about the overall increase.

2017-03-09  Richard Biener  <rguenther@suse.de>

        PR middle-end/79971
        * gimple-expr.c (useless_type_conversion_p): Preserve
        TYPE_SATURATING for fixed-point types.

2017-03-09  Richard Biener  <rguenther@suse.de>

        PR ipa/79970
        * ipa-prop.c (ipa_modify_formal_parameters): Avoid changing
        alignment of BLKmode params.

2017-03-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/79913
        * config/aarch64/iterators.md (VALL_F16_NO_V2Q): New mode iterator.
        (VALL_NO_V2Q): Likewise.
        (VDQF_DF): Delete.
        * config/aarch64/aarch64-simd.md
        (aarch64_dup_lane_<vswap_width_name><mode>): Use VALL_F16_NO_V2Q
        iterator.
        (*aarch64_simd_vec_copy_lane_<vswap_width_name><mode>): Use
        VALL_NO_V2Q mode iterator.
        (*aarch64_vgetfmulx<mode>): Use VDQF iterator.

2017-03-09  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/79631
        * tree-chkp-opt.c (chkp_is_constant_addr): Call
        tree_int_cst_sign_bit just for INTEGER constants.

2017-03-09  Martin Liska  <mliska@suse.cz>

        PR target/65705
        PR target/69804
        * toplev.c (process_options): Disable -fcheck-pointer-bounds with
        sanitizers.

2017-03-09  Marek Polacek  <polacek@redhat.com>

        PR c++/79672
        * tree.c (inchash::add_expr): Handle TREE_VEC.

2017-03-09  Martin Liska  <mliska@suse.cz>

        PR ipa/79764
        (chkp_narrow_size_and_offset): New function.
        (chkp_parse_array_and_component_ref): Support BIT_FIELD_REF.
        (void chkp_parse_bit_field_ref): New function.
        (chkp_make_addressed_object_bounds): Add case for BIT_FIELD_REF.
        (chkp_process_stmt): Use chkp_parse_bit_field_ref.

2017-03-09  Martin Liska  <mliska@suse.cz>

        PR ipa/79761
        * tree-chkp.c (chkp_get_bound_for_parm): Get bounds for a param.
        (chkp_find_bounds_1): Remove gcc_unreachable.

2017-03-09  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/79944
        * asan.c (get_mem_refs_of_builtin_call): For BUILT_IN_ATOMIC* and
        BUILT_IN_SYNC*, determine the access type from the size suffix and
        always build a MEM_REF with that type.  Handle forgotten
        BUILT_IN_SYNC_FETCH_AND_NAND_16 and BUILT_IN_SYNC_NAND_AND_FETCH_16.

        PR target/79932
        * config/i386/avx512vlintrin.h (_mm256_cmpge_epi32_mask,
        _mm256_cmpge_epi64_mask, _mm256_cmpge_epu32_mask,
        _mm256_cmpge_epu64_mask, _mm256_cmple_epi32_mask,
        _mm256_cmple_epi64_mask, _mm256_cmple_epu32_mask,
        _mm256_cmple_epu64_mask, _mm256_cmplt_epi32_mask,
        _mm256_cmplt_epi64_mask, _mm256_cmplt_epu32_mask,
        _mm256_cmplt_epu64_mask, _mm256_cmpneq_epi32_mask,
        _mm256_cmpneq_epi64_mask, _mm256_cmpneq_epu32_mask,
        _mm256_cmpneq_epu64_mask, _mm256_mask_cmpge_epi32_mask,
        _mm256_mask_cmpge_epi64_mask, _mm256_mask_cmpge_epu32_mask,
        _mm256_mask_cmpge_epu64_mask, _mm256_mask_cmple_epi32_mask,
        _mm256_mask_cmple_epi64_mask, _mm256_mask_cmple_epu32_mask,
        _mm256_mask_cmple_epu64_mask, _mm256_mask_cmplt_epi32_mask,
        _mm256_mask_cmplt_epi64_mask, _mm256_mask_cmplt_epu32_mask,
        _mm256_mask_cmplt_epu64_mask, _mm256_mask_cmpneq_epi32_mask,
        _mm256_mask_cmpneq_epi64_mask, _mm256_mask_cmpneq_epu32_mask,
        _mm256_mask_cmpneq_epu64_mask, _mm_cmpge_epi32_mask,
        _mm_cmpge_epi64_mask, _mm_cmpge_epu32_mask, _mm_cmpge_epu64_mask,
        _mm_cmple_epi32_mask, _mm_cmple_epi64_mask, _mm_cmple_epu32_mask,
        _mm_cmple_epu64_mask, _mm_cmplt_epi32_mask, _mm_cmplt_epi64_mask,
        _mm_cmplt_epu32_mask, _mm_cmplt_epu64_mask, _mm_cmpneq_epi32_mask,
        _mm_cmpneq_epi64_mask, _mm_cmpneq_epu32_mask, _mm_cmpneq_epu64_mask,
        _mm_mask_cmpge_epi32_mask, _mm_mask_cmpge_epi64_mask,
        _mm_mask_cmpge_epu32_mask, _mm_mask_cmpge_epu64_mask,
        _mm_mask_cmple_epi32_mask, _mm_mask_cmple_epi64_mask,
        _mm_mask_cmple_epu32_mask, _mm_mask_cmple_epu64_mask,
        _mm_mask_cmplt_epi32_mask, _mm_mask_cmplt_epi64_mask,
        _mm_mask_cmplt_epu32_mask, _mm_mask_cmplt_epu64_mask,
        _mm_mask_cmpneq_epi32_mask, _mm_mask_cmpneq_epi64_mask,
        _mm_mask_cmpneq_epu32_mask, _mm_mask_cmpneq_epu64_mask): Move
        definitions outside of __OPTIMIZE__ guarded section.

        PR target/79932
        * config/i386/avx512bwintrin.h (_mm512_packs_epi32,
        _mm512_maskz_packs_epi32, _mm512_mask_packs_epi32,
        _mm512_packus_epi32, _mm512_maskz_packus_epi32,
        _mm512_mask_packus_epi32): Move definitions outside of __OPTIMIZE__
        guarded section.

2017-03-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/vx-builtins.md ("vfee<mode>", "vfeez<mode>")
        ("vfenez<mode>"): Add missing constraints.

2017-03-08  Martin Sebor  <msebor@redhat.com>

        PR target/79928
        * config/nds32/nds32.c (nds32_option_override):
        Fix misspelled diagnostic.

2017-03-08  Jakub Jelinek  <jakub@redhat.com>

        PR c/79940
        * gimplify.c (gimplify_omp_for): Replace index var in outer
        taskloop statement with an artificial variable and add
        OMP_CLAUSE_PRIVATE clause for it.

2017-03-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79955
        * tree-ssa-uninit.c (warn_uninitialized_vars): Do not warn
        for accesses that are completely outside of the variable.

2017-03-08  Andrew Haley  <aph@redhat.com>

        PR tree-optimization/79943
        * tree-ssa-loop-split.c (compute_new_first_bound): When
        calculating the new upper bound, (END-BEG) should be added, not
        subtracted.

2017-03-08  Jakub Jelinek  <jakub@redhat.com>

        * config/avr/avr.md (setmemhi): Make sure match_dup
        operand number comes before match_scratch.

2017-03-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79920
        * tree-vect-slp.c (vect_create_mask_and_perm): Remove and inline
        with ncopies == 1 to ...
        (vect_transform_slp_perm_load): ... here.  Properly compute
        all element loads by iterating VF times over the group.  Do
        not handle ncopies (computed in a broken way) in
        vect_create_mask_and_perm.

2017-03-08  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/79904
        * internal-fn.c (expand_vector_ubsan_overflow): If arg0 or arg1
        is a uniform vector, use uniform_vector_p return value instead of
        building ARRAY_REF on folded VIEW_CONVERT_EXPR to array type.

2017-03-07  Marek Polacek  <polacek@redhat.com>

        PR middle-end/79809
        * gimple-ssa-warn-alloca.c (pass_walloca::gate): Use HOST_WIDE_INT.
        (alloca_call_type): Likewise.

2017-03-07  Martin Liska  <mliska@suse.cz>

        * gcov.c (process_args): Put comment to correct location.

2017-03-07  Martin Liska  <mliska@suse.cz>

        PR middle-end/68270
        * tree-chkp.c (chkp_may_narrow_to_field): Add new argument ref.
        Use array_at_struct_end_p instead of DECL_CHAIN (field).
        (chkp_narrow_bounds_for_field): Likewise.
        (chkp_parse_array_and_component_ref): Pass one more argument to
        call.

2017-03-07  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop-manip.c (slpeel_add_loop_guard): Preserve
        preheaders.

2017-03-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/i386/i386.c (ix86_local_alignment): Align most aggregates
        of 16 bytes and more to 16 bytes, not those of 16 bits and more.

2017-03-07  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR c/79855
        * params.def (PARAM_STORE_MERGING_ALLOW_UNALIGNED): Add full stop
        to end of description.
        (PARAM_MAX_STORES_TO_MERGE): Likewise.

2017-03-07  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/79901
        * config/i386/sse.md (*avx512bw_<code><mode>3<mask_name>): Renamed to
        ...
        (*avx512f_<code><mode>3<mask_name>): ... this.
        (<code><mode>3 with maxmin code iterator): Use VI8_AVX2_AVX512F
        iterator instead of VI8_AVX2_AVX512BW.

        PR rtl-optimization/79901
        * expr.c (expand_expr_real_2): For vector MIN/MAX, if there is no
        min/max expander, expand it using expand_vec_cond_expr.

        PR sanitizer/79897
        * ubsan.c (ubsan_encode_value): Call mark_addressable on the
        temporary.

2017-03-06  Jakub Jelinek  <jakub@redhat.com>

        PR c++/79821
        * dwarf2out.h (dw_vec_const): Change array type from unsigned char *
        to void * for PCH reasons.
        * dwarf2out.c (output_loc_operands, output_die): Cast
        v.val_vec.array to unsigned char *.

2017-03-06  John David Anglin  <danglin@gcc.gnu.org>

        PR target/77850
        * config/pa/pa-64.h (PAD_VARARGS_DOWN): Don't pad down complex and
        vector types.

2017-03-06  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/79571
        * lra-constraints.c (process_alt_operands): Calculate static
        reject and subtract it from overall when only addresses will be
        reloaded.

2017-03-06  Julia Koval  <julia.koval@intel.com>

        PR target/79793
        * config/i386/i386.c (ix86_minimum_incoming_stack_boundary): Set
        incoming stack boundary to 128 for 64-bit targets.

2017-03-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79894
        * tree-vectorizer.c (vectorize_loops): Set loop_vectorized_call
        to NULL after folding it.

2017-03-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79824
        * tree-vect-stmts.c (get_group_load_store_type): Fix alignment
        check disabling peeling for gaps.

2017-03-06  Toma Tabacu  <toma.tabacu@imgtec.com>

        * doc/sourcebuild.texi (Effective-Target Keywords, Environment
        attributes): Document gettimeofday.

2017-03-06  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_option_override_internal): Set
        PARAM_MIN_VECT_LOOP_BOUND

2017-03-06  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_asm_output_function_label): Use nopr %r0.
        * config/s390/s390.md: Likewise.

2017-03-06  Jakub Jelinek  <jakub@redhat.com>

        PR target/79812
        * config/i386/sse.md (VI8F_256_512): Remove mode iterator.
        (<avx2_avx512>_perm<mode>): Rename to ...
        (avx2_perm<mode>): ... this.  Use VI8F_256 iterator instead
        of VI8F_256_512.
        (<avx512>_perm<mode>_mask): Rename to ...
        (avx512vl_perm<mode>_mask): ... this.  Use VI8F_256 iterator instead
        of VI8F_256_512.
        (<avx2_avx512>_perm<mode>_1<mask_name>): Rename to ...
        (avx2_perm<mode>_1<mask_name): ... this.  Use VI8F_256 iterator
        instead of VI8F_256_512.
        (avx512f_perm<mode>): New define_expand.
        (avx512f_perm<mode>_mask): Likewise.
        (avx512f_perm<mode>_1<mask_name>): New define_insn.
        (<avx512>_vec_dup<mode>_1): Fix up vec_select mode.

2017-03-06  Prachi Godbole  <prachi.godbole@imgtec.com>

        * config/mips/mips-msa.md (msa_fmax_a_<msafmt>, msa_fmin_a_<msafmt>,
        msa_max_a_<msafmt>, msa_min_a_<msafmt>): Introduce mode interator for
        if_then_else.
        (smin<mode>3, smax<mode>3): Change operand print code from 'B' to 'E'.

2017-03-06  Martin Liska  <mliska@suse.cz>

        PR sanitize/79783
        * asan.c (asan_expand_poison_ifn): Do not expand ASAN_POISON
        when having a SSA NAME w/o VAR_DECL assigned to it.

2017-03-06  Prachi Godbole  <prachi.godbole@imgtec.com>

        * config/mips/mips-msa.md (msa_dotp_<su>_d, msa_dpadd_<su>_d,
        msa_dpsub_<su>_d): Fix MODE for vec_select.

2017-03-06  Prachi Godbole  <prachi.godbole@imgtec.com>

        * config/mips/mips.c (mips_gen_const_int_vector): Change type of last
        argument.
        * config/mips/mips-protos.h (mips_gen_const_int_vector): Likewise.

2017-03-06  Richard Biener  <rguenther@suse.de>

        * lto-streamer.c (lto_check_version): Use %qs in diagnostics.
        * plugin.c (register_plugin_info): Likewise.
        * tree-chkp.c (chkp_make_static_const_bounds): Likewise.

2017-03-05  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (sse_storehps, sse_storelps,
        avx_<castmode><avxsizesuffix>_<castmode>,
        avx512f_<castmode><avxsizesuffix>_<castmode>,
        avx512f_<castmode><avxsizesuffix>_256<castmode>): Require
        in condition that at least one operand is not a MEM.

2017-03-03  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/79805
        * internal-fn.def (ATOMIC_BIT_TEST_AND_SET, ATOMIC_BIT_TEST_AND_RESET,
        ATOMIC_BIT_TEST_AND_COMPLEMENT, ATOMIC_COMPARE_EXCHANGE): Remove
        ECF_NOTHROW.
        * gimple-fold.c (fold_builtin_atomic_compare_exchange): Set
        gimple_call_nothrow_p flag based on whether original builtin can throw.
        If it can, emit following stmts on the fallthrough edge.
        * tree-ssa-ccp.c (optimize_atomic_bit_test_and): Similarly, except
        don't create new bb if inserting just debug stmts on the edge, try to
        insert them on the fallthru bb or just reset debug stmts.

2017-03-03  Segher Boesssenkool  <segher@kernel.crashing.org>

        PR target/43763
        * config/rs6000/rs6000.c (rs6000_final_prescan_insn): Save and
        restore recog_data (including the operand rtxes inside it) around
        the call to get_insn_template.

2017-03-03  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/79699
        * context.c (context::~context): Free MPFR caches to avoid
        a memory leak on program exit.

2017-03-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (aarch64_float_const_representable_p):
        Use wide_int::ulow () instead of .elt (0).

2017-03-03  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*pushtf): Change *roF constraint to *roC.
        (*pushxf): Limit oF constraint to 32bit targets and add oC
        constraint for 64bit targets.
        (pushxf splitter): Use PUSH_ROUNDING to calculate stack adjustment.
        (*pushdf): Change rmF constraint to rmC.

2017-03-03  Martin Liska  <mliska@suse.cz>

        * tree-ssa-loop-prefetch.c (pass_loop_prefetch::execute):
        Remove unused variable.

2017-03-03  Jakub Jelinek  <jakub@redhat.com>

        PR target/79807
        * config/i386/i386.c (ix86_expand_multi_arg_builtin): If target
        is a memory operand, increase num_memory.
        (ix86_expand_args_builtin): Likewise.

2017-03-03  Jan Hubicka  <jh@suse.cz>

        PR lto/79760
        * ipa-devirt.c (maybe_record_node): Properly handle
        __cxa_pure_virtual visibility.

2017-03-03  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/79803
        * tree-ssa-loop-prefetch.c (tree_ssa_prefetch_arrays): Remove
        assert.
        (pass_loop_prefetch::execute): Disabled optimization if an
        assumption about L1 cache size is not met.

2017-03-03  Martin Liska  <mliska@suse.cz>

        PR rtl-optimization/79574
        * gcse.c (struct gcse_expr): Use HOST_WIDE_INT instead of int.
        (hash_scan_set): Likewise.
        (dump_hash_table): Likewise.
        (hoist_code): Likewise.

2017-03-03  Richard Biener  <rguenther@suse.de>

        * fixed-value.c (fixed_from_string): Restore use of elt (1)
        in place of uhigh ().
        (fixed_convert_from_real): Likewise.

2017-03-03  Uros Bizjak  <ubizjak@gmail.com>

        PR target/79514
        * config/i386/i386.md (*pushxf_rounded): Use Pmode instead of DImode.

2017-03-03  Richard Biener  <rguenther@suse.de>

        PR middle-end/79818
        * match.pd ( X +- C1 CMP C2 -> X CMP C2 -+ C1): Add missing
        TYPE_OVERFLOW_UNDEFINED check.

2017-03-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/vector.md (vector_ne_<mode>_p): Correct operand
        numbers.
        (vector_ae_<mode>_p): Likewise.
        (vector_nez_<mode>_p): Likewise.
        (vector_ne_v2di_p): Likewise.
        (vector_ae_v2di_p): Likewise.
        (vector_ne_<mode>_p): Likewise.
        * config/rs6000/vsx.md (vsx_tsqrt<mode>2_fg): Correct operand
        numbers.
        (vsx_tsqrt<mode>2_fe): Likewise.

2017-03-02  Uros Bizjak  <ubizjak@gmail.com>

        PR target/79514
        * config/i386/i386.md (*pushxf_rounded): New insn_and_split pattern.

2017-03-02  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/79780
        * cprop.c (one_cprop_pass): When second and further conditional trap
        in a single basic block is turned into an unconditional trap, turn it
        into a deleted note to avoid RTL verification failures.

2017-03-02  Richard Biener  <rguenther@suse.de>

        * fold-const.c (const_binop): Use ulow () instead of elt (0).

2017-03-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79345
        PR c++/42000
        * tree-ssa-alias.c (walk_aliased_vdefs_1): Take a limit
        param and abort the walk, returning -1 if it is hit.
        (walk_aliased_vdefs): Take a limit param and pass it on.
        * tree-ssa-alias.h (walk_aliased_vdefs): Add a limit param,
        defaulting to 0 and return a signed int.
        * tree-ssa-uninit.c (struct check_defs_data): New struct.
        (check_defs): New helper.
        (warn_uninitialized_vars): Use walk_aliased_vdefs to warn
        about uninitialized memory.
        * fixed-value.c (fixed_from_string): Use ulow/uhigh to avoid
        bogus uninitialized warning.
        (fixed_convert_from_real): Likewise.

2017-03-02  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/66768
        * tree-ssa-loop-ivopts.c (find_interesting_uses_address): Skip addr
        iv_use if base object can't be determined.

2017-03-02  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79345
        * gensupport.h (struct pattern_stats): Add min_scratch_opno field.
        * gensupport.c (get_pattern_stats_1) <case MATCH_SCRATCH>: Update it.
        (get_pattern_stats): Initialize it.
        * genemit.c (gen_expand): Verify match_scratch numbers come after
        match_operand/match_dup numbers.
        * config/i386/i386.md (<s>mul<mode>3_highpart): Swap match_dup and
        match_scratch numbers.
        * config/i386/sse.md (avx2_gathersi<mode>, avx2_gatherdi<mode>):
        Likewise.
        * config/s390/s390.md (trunctdsd2): Likewise.

2017-03-02  Richard Biener  <rguenther@suse.de>

        * wide-int.h (wide_int_storage::operator=): Implement in terms
        of wi::copy.

2017-03-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79777
        * tree-ssa-pre.c (eliminate_insert): Give up if we simplify
        the to insert expression to sth existing.

2017-03-01  Martin Sebor  <msebor@redhat.com>

        PR middle-end/79692
        * gimple-ssa-sprintf.c
        (directive::known_width_and_precision): New function.
        (format_integer): Use it.
        (get_mpfr_format_length): Consider the full range of precision
        when computing %g output with the # flag.  Set the likely byte
        count to 3 rather than 1 when precision is indeterminate.
        (format_floating): Correct the lower bound of precision.

2017-03-01  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * doc/invoke.texi: Document default code model for 64-bit Linux.

2017-03-01  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        PR target/79752
        * config/rs6000/rs6000.md (peephole2 for udiv/umod): Should emit
        udiv rather than div since input pattern is unsigned.

2017-03-01  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (print_reg): Warn for values of
        unsupported size in integer register.

2017-03-01  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/79439
        * config/rs6000/predicates.md (current_file_function_operand): Do
        not allow self calls to be local if the function is replaceable.

2017-03-01  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        PR target/79395
        * config/rs6000/altivec.h (vec_ctz and others): Change the
        preprocessor macro that controls conditional compilation from
        _ARCH_PWR9 to __POWER9_VECTOR__.
        (vec_all_ne): Change parameterization of __altivec_scalar_pred
        macro expansion under preprocessor #ifdef __POWER9_VECTOR__
        control (instead of _ARCH_PWR9 control) so that template
        definition uses power9-specific function.
        (vec_any_eq): Likewise.
        (vec_all_ne): Change macro definition to use a power9-specific
        expansion under #ifdef __POWER9_VECTOR__ control (instead of
        _ARCH_PWR9 control).
        (vec_any_eq) Likewise.
        * config/rs6000/rs6000-builtin.def (CMPNEF): Remove BU_P9V_AV_2
        expansion for CMPNEF to remove support for xvcmpnesp instruction.
        (CMPNED): Remove BU_P9V_AV2 expansion for CMPNED to remove
        support for xvcmpnedp instruction.
        (VCMPNEB_P): Replace BU_P9V_AV_P macro expansion with BU_P9V_AV_2
        macro expansion so that Power9 implementation of vec_all_ne does
        not use the AltiVec predicate framework.
        (VCMPNEH_P): Likewise.
        (VCMPNEW_P): Likewise.
        (VCMPNED_P): Likewise.
        (VCMPNEFP_P): Likewise.
        (VCMPNEDP_P): Likewise.
        (VCMPAEB_P): Add BU_P9V_AV_2 macro expansion to change
        implementation of vec_any_eq to not use AltiVec predicate
        framework.
        (VCMPAEH_P): Likewise.
        (VCMPAEW_P): Likewise.
        (VCMPAED_P): Likewise.
        (VCMPAEFP_P): Likewise.
        (VCMPAEDP_P): Likewise.
        (VCMPNE_P): Replace BU_P9V_OVERLOAD_P macro expansion with
        BU_P9V_OVERLOAD_2 so that Power9 implementation of vec_all_ne does
        not use the AltiVec predicate framework.
        (VCMPAE_P): Add BU_P9V_OVERLOAD_2 macro to change implementation
        of vec_any_eq to not use AltiVec predicate framework.
        * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Add
        support for predefined __POWER9_VECTOR__ macro to indicate that
        Power9 instruction selection is enabled.
        (altivec_overloaded_builtins): Remove extraneous
        ALTIVEC_BUILTIN_VEC_CMPNE entry for overloaded
        function argument types RS6000_BTI_bool_V16QI and
        RS6000_BTI_bool_V16QI.  Remove erroneous ALTIVEC_BUILTIN_VEC_CMPNE
        entry for overloaded function argument types RS6000_BTI_bool_V4SI
        andRS6000_BTI_bool_V4SI, mapping to P9V_BUILTIN_CMPNEB.  Remove
        two entries mapping to P9V_BUITIN_CMPNED and one entry mapping to
        P9V_BUILTIN_CMPNEF to force use of instructions not specific to
        Power9 for implementations of vec_cmpne.  Change the signature for
        all definitions of the overloaded P9V_BUILTIN_VEC_CMPNE_P function
        (representing vec_all_ne) to remove the previously described first
        argument of type RS6000_BTI_INTSI, as this was an artifact of
        reliance on the AltiVec predicate framework, which is no longer
        used in the implementation of these functions.  Add
        P9V_BUILTIN_VEC_VCMPAE_P entries (representing the vec_anyeq
        function) to match all of the P9V_BUILTIN_VEC_VCMNE_P entries
        since, unlike the AltiVec predicate framework implementation, we
        do not share function descriptors between vec_alle and vec_anyeq.
        (altivec_resolve_overloaded_builtin): Add SFmode and DFmode to the
        set of modes that receive special treatment even when
        TARGET_P9_VECTOR is true.  The special treatment emits code that
        does not depend on Power9 instructions.
        * config/rs6000/vector.md (vector_ne_<mode>_p): Change this
        define_expand to not rely on AltiVec predicate framework.
        (vector_ae_<mode>p): New define_expand to represent vec_any_eq
        function.
        (vector_ne_v2di_p): Change this define_expand to not rely on
        AltiVec predicate framework.
        (vector_ae_v2di_p): New define_expand to represent vec_any_eq
        function.
        (vector_ne_<mode>_p): Change this define_expand to not rely on
        AltiVec predicate framework.
        (vector_ae_<mode>p): New define_expand to represent vec_any_eq
        function.
        * config/rs6000/vsx.md (*vsx_ne_<mode>_p): For modes VSX_EXTRACT_I
        (V16QI, V8HI, V4SI), correct a typo in the code emitted for this
        define_insn pattern.
        (*vsx_ne_<mode>_p): For modes VSX_F (V4SF and V2DF), remove this
        define_insn pattern because the xvcmpne<VSs>. instruction is not
        supported.
        (vcmpne<VSs>): Remove this define_insn because xvcmpne<VSs>
        instruction is not supported.

2017-03-01  Jakub Jelinek  <jakub@redhat.com>

        * config/nvptx/nvptx.c: Include intl.h.

2017-03-01  Martin Jambor  <mjambor@suse.cz>

        PR lto/78140
        * ipa-prop.h (ipa_bits): Removed field known.
        (ipa_jump_func): Removed field vr_known.  Changed fields bits and m_vr
        to pointers.  Adjusted their comments to warn about their sharing.
        (ipcp_transformation_summary): Change bits to a vector of pointers.
        (ipa_check_create_edge_args): Moved to ipa-prop.c, declare.
        (ipa_get_ipa_bits_for_value): Declare.
        * tree-vrp.h (value_range): Mark as GTY((for_user)).
        * ipa-prop.c (ipa_bit_ggc_hash_traits): New.
        (ipa_bits_hash_table): Likewise.
        (ipa_vr_ggc_hash_traits): Likewise.
        (ipa_vr_hash_table): Likewise.
        (ipa_print_node_jump_functions_for_edge): Adjust for bits and m_vr
        being pointers and vr_known being removed.
        (ipa_set_jf_unknown): Likewise.
        (ipa_get_ipa_bits_for_value): New function.
        (ipa_set_jfunc_bits): Likewise.
        (ipa_get_value_range): New overloaded functions.
        (ipa_set_jfunc_vr): Likewise.
        (ipa_compute_jump_functions_for_edge): Use the above functions to
        construct bits and vr parts of jump functions.
        (ipa_check_create_edge_args): Move here from ipa-prop.h, also allocate
        ipa_bits_hash_table and ipa_vr_hash_table if they do not already
        exist.
        (ipcp_grow_transformations_if_necessary): Also allocate
        ipa_bits_hash_table and ipa_vr_hash_table if they do not already
        exist.
        (ipa_node_params_t::duplicate): Do not copy bits, just pointers to
        them.  Fix too long lines.
        (ipa_write_jump_function): Adjust for bits and m_vr being pointers and
        vr_known being removed.
        (ipa_read_jump_function): Use new setter functions to construct bits
        and vr parts of jump functions or set them to NULL.
        (write_ipcp_transformation_info): Adjust for bits being pointers.
        (read_ipcp_transformation_info): Likewise.
        (ipcp_update_bits): Likewise.  Fix excessively long lines a trailing
        space.
        Include gt-ipa-prop.h.
        * ipa-cp.c (propagate_bits_across_jump_function): Adjust for bits
        being pointers.
        (ipcp_store_bits_results): Likewise.
        (propagate_vr_across_jump_function): Adjust for m_vr being a pointer.
        Do not write to existing jump functions but use a temporary instead.

2017-03-01  Jakub Jelinek  <jakub@redhat.com>

        PR c++/79681
        * fold-const.c (make_bit_field_ref): If orig_inner is COMPONENT_REF,
        attempt to use its first operand as BIT_FIELD_REF base.

2017-03-01  Richard Biener  <rguenther@suse.de>

        PR middle-end/79721
        * tree-chrec.c (chrec_evaluate): Perform computation of Newtons
        interpolating formula in wrapping arithmetic.
        (chrec_apply): Convert chrec_evaluate return value to wanted type.

2017-03-01  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79734
        * tree-vect-generic.c (expand_vector_condition): Optimize
        AVX512 vector boolean VEC_COND_EXPRs into bitwise operations.
        Handle VEC_COND_EXPR where comparison has different inner width from
        type's inner width.

2017-02-28  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (ARC Options): Copy-edit to fix punctuation,
        markup, and similar issues.  Remove @opindex entries for things
        that aren't options.  Add missing -mmpy-option entries.

2017-02-28  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79737
        * gimple-ssa-store-merging.c (encode_tree_to_bitpos): If bitlen is
        a multiple of BITS_PER_UNIT and !BYTES_BIG_ENDIAN, clear
        tmpbuf[byte_size - 1].  Call natice_encode_expr with byte_size - 1
        instead of byte_size.  Formatting fix.
        (shift_bytes_in_array_right): Formatting fix.

2017-02-28  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/79749
        * config/sparc/sparc.c (sparc_frame_pointer_required): Add missing
        condition on optimize for the leaf function test.

2017-02-28  Martin Liska  <mliska@suse.cz>

        PR lto/79625
        * read-rtl-function.c (function_reader::handle_unknown_directive):
        Bail out when one uses -flto.

2017-02-28  Martin Liska  <mliska@suse.cz>

        * common.opt: Replace space with tabular for options of <number>
        type.
        * config/i386/i386.opt: Show <number> value for
        -mlarge-data-threshold.
        * opts.c (print_filtered_help): Do not display number in hexadecimal
        format.

2017-02-28  Martin Liska  <mliska@suse.cz>

        * common.opt: Fix --help=option -Q for options which are of
        an enum type.

2017-02-28  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (print_reg): Error out for values
        of 8-bit size in invalid integer register.

2017-02-28  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/79691
        * passes.def (pass_all_optimizations_g): Enable pass_sprintf_length.

2017-02-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/79729
        * config/i386/i386.c (ix86_print_operand) <case 'R'>: Replace
        gcc_unreachable with output_operand_lossage.

2017-02-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79740
        * tree-ssa-sccvn.c (vn_nary_op_insert_into): Allow redundant
        inserts.
        (visit_nary_op): Insert the nary into the hashtable if we
        pattern-matched sth.
        * tree-ssa-pre.c (eliminate_insert): Robustify.

2017-02-28  Richard Biener  <rguenther@suse.de>

        PR middle-end/79731
        * fold-const.c (decode_field_reference): Reject out-of-bound
        accesses.

2017-02-28  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c: Include intl.h.
        (ix86_option_override_internal): Use cond ? G_("...") : G_("...")
        instead of just cond ? "..." : "...".
        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims): Likewise.
        * coverage.c (read_counts_file): Likewise.
        * omp-offload.c: Include intl.h.
        (oacc_loop_fixed_partitions): Use cond ? G_("...") : G_("...") instead
        of just cond ? "..." : "...".
        * gcov.c (read_count_file): Use cond ? N_("...") : N_("...") instead
        of just cond ? "..." : "...".

2017-02-28  Richard Earnshaw  <rearnsha@arm.com>

        PR target/79742
        * config/arm/parsecpu.awk (gen_data): Set tuning target to 'tune for'
        entry, if present.
        * config/arm/arm-cpus.in (cortex-m0plus.small-multiply): Correct
        'tune for' CPU name.
        * config/arm/arm-cpu-data.h: Regenerated.

2017-02-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79732
        * tree-inline.c (expand_call_inline): Do not shadow var.

2017-02-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79723
        * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Preserve
        address-space properly.

2017-02-28  Thomas Schwinge  <thomas@codesourcery.com>

        * doc/optinfo.texi (Optimization groups): Fix option used for
        OPTGROUP_ALL.
        * doc/invoke.texi (-fopt-info): Document "omp".
        * dumpfile.h: Sort OPTGROUP_OMP before OPTGROUP_VEC.
        (OPTGROUP_ALL): Add OPTGROUP_OMP.
        * hsa-gen.c (pass_data_gen_hsail): Use OPTGROUP_OMP.
        * ipa-hsa.c (pass_data_ipa_hsa): Likewise.
        * omp-simd-clone.c (pass_data_omp_simd_clone): Likewise.

        * dumpfile.h (OPTGROUP_OPENMP): Rename to OPTGROUP_OMP.  Adjust
        all users.
        * dumpfile.c (optgroup_options): Instead of "openmp", associate
        OPTGROUP_OMP with "omp".

2017-02-27  Pat Haugen  <pthaugen@us.ibm.com>

        PR target/79544
        * config/rs6000/rs6000-c.c (struct altivec_builtin_types): Use VSRAD
        for arithmetic shift of unsigned V2DI.

2017-02-27  Claudiu Zissulescu  <claziss@synopsys.com>

        * config.gcc (arc*-): Clean up, use arc/big.h, arc/elf.h, and
        arc/linux.h headers.
        * config/arc/arc.h (TARGET_OS_CPP_BUILTINS): Remove.
        (LINK_SPEC): Likewise.
        (ARC_TLS_EXTRA_START_SPEC): Likewise.
        (EXTRA_SPECS): Likewise.
        (STARTFILE_SPEC): Likewise.
        (ENDFILE_SPEC): Likewise.
        (LIB_SPEC): Likewise.
        (TARGET_SDATA_DEFAULT): Likewise.
        (TARGET_MMEDIUM_CALLS_DEFAULT): Likewise.
        (MULTILIB_DEFAULTS): Likewise.
        (DWARF2_UNWIND_INFO): Likewise.
        * config/arc/big.h: New file.
        * config/arc/elf.h: Likewise.
        * config/arc/linux.h: Likewise.
        * config/arc/t-uClibc: Remove.

2017-02-27  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/77536
        * tree-ssa-loop-manip.c (niter_for_unrolled_loop): New function.
        (tree_transform_and_unroll_loop): Use above function to compute the
        estimated niter of unrolled loop and use it when scaling profile.
        Also use count info rather than frequency if it's non-zero.
        * tree-ssa-loop-manip.h niter_for_unrolled_loop(): New declaration.
        * tree-vect-loop.c (scale_profile_for_vect_loop): New function.
        (vect_transform_loop): Call above function.

2017-02-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/45397
        * tree-ssa-pre.c (eliminate_insert): Handle BIT_AND_EXPR.
        * tree-ssa-sccvn.c (valueized_wider_op): New helper.
        (visit_nary_op): Add pattern matching for CSEing sign-changed
        or truncated operations with wider ones.

2017-02-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79690
        * tree-vect-stmts.c (vectorizable_store): Use vector type
        built from the DR with address-space.

2017-02-26  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/invoke.texi (Optimize Options): Refine the description
        of asan-use-after-return.

2017-02-25  Alan Modra  <amodra@gmail.com>

        PR rtl-optimization/79584
        * lra-constraints.c (base_to_reg): Reload ad->base, the entire
        base, not ad->base_term, the reg within base.  Remove assertion
        that ad->base == ad->base_term.  Replace gen_int_mode using
        bogus mode with const0_rtx.

2017-02-25  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/79396
        * tree-eh.c (operation_could_trap_p, stmt_could_throw_1_p): Handle
        FMA_EXPR like tcc_binary or tcc_unary.

        * tree-ssa-loop-niter.c (number_of_iterations_exit): Simplify warning.

        PR debug/77589
        * dwarf2out.c (struct dw_loc_list_struct): Add noted_variable_value
        bitfield.
        (size_of_loc_descr): Handle DW_OP_GNU_variable_value.
        (output_loc_operands): Handle DW_OP_call_ref and
        DW_OP_GNU_variable_value.
        (struct variable_value_struct): New type.
        (struct variable_value_hasher): Likewise.
        (variable_value_hash): New variable.
        (string_types): Remove.
        (copy_loc_descr): New function.
        (add_loc_descr_to_each): Clarify comment.  Use copy_loc_descr.
        (prepend_loc_descr_to_each): New function.
        (add_loc_list): Fix comment typo.  Use prepend_loc_descr_to_each
        instead of add_loc_descr_to_each if the first argument is single
        location list and the second has multiple.
        (resolve_args_picking_1): Handle DW_OP_GNU_variable_value.
        (loc_list_from_tree_1): For early_dwarf, emit DW_OP_GNU_variable_value
        when looking for variable value which doesn't have other location info.
        (loc_list_from_tree): Formatting fix.
        (gen_array_type_die): Simplify DW_AT_string_length handling.
        (adjust_string_types): Remove.
        (gen_subprogram_die): Don't call adjust_string_types nor test/set
        string_types.  Call resolve_variable_values.
        (prune_unused_types_walk_loc_descr): Handle DW_OP_GNU_variable_value.
        (resolve_addr_in_expr): Likewise.  Add A argument.
        (copy_deref_exprloc): Remove deref argument.  Adjust for the
        original expression being DW_OP_GNU_variable_value with optionally
        DW_OP_stack_value after it instead of DW_OP_call4 with DW_OP_deref
        optionally after it.
        (optimize_string_length): Rework for DW_OP_GNU_variable_value.
        (resolve_addr): Adjust optimize_string_length and resolve_addr_in_expr
        callers.  Set remove_AT_byte_size if removing DW_AT_string_length.
        (variable_value_hasher::hash, variable_value_hasher::equal): New
        methods.
        (resolve_variable_value_in_expr, resolve_variable_value,
        resolve_variable_values, note_variable_value_in_expr,
        note_variable_value): New functions.
        (dwarf2out_early_finish): Call note_variable_value on all toplevel
        DIEs.

2017-02-24  Jakub Jelinek  <jakub@redhat.com>

        PR c/79677
        * opts.h (handle_generated_option): Add GENERATED_P argument.
        * opts-common.c (handle_option): Adjust function comment.
        (handle_generated_option): Add GENERATED_P argument, pass it to
        handle_option.
        (control_warning_option): Pass false to handle_generated_option
        GENERATED_P.
        * opts.c (maybe_default_option): Pass true to handle_generated_option
        GENERATED_P.
        * optc-gen.awk: Likewise.

2017-02-24  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/sh/sh.md (tstsi_t): If operands[0] is a SUBREG instead of
        a REG, look at the REG it is a SUBREG of.
        (splitter for cmpeqsi_t): Ditto.

2017-02-24  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/pa/pa.c (pa_combine_instructions): Do not share RTL.  Make
        the special USEs with the pattern of the insn, not the insn itself.

2017-02-24  Matthew Fortune  <matthew.fortune@imgtec.com>

        PR target/79473
        * doc/invoke.texi: Document -mload-store-pairs.

2017-02-24  Segher Boessenkool  <segher@kernel.crashing.org>
            Sandra Loosemore  <sandra@codesourcery.com>

        * config/nios2/nios2.c (nios2_simple_const_p): Returns false if the
        argument isn't a CONST_INT.
        (nios2_alternate_compare_const): Assert op is a CONST_INT.
        (nios2_valid_compare_const_p): Assert op is a CONST_INT.
        (nios2_validate_compare): Bypass alternate compare logic if *op2
        is not a CONST_INT.
        (ldstwm_operation_p): Return false if first_base is not a REG or
        if first_offset is not a CONST_INT.

2017-02-24  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/cris/cris.md: Use correct operand in a define_peephole2.

2017-02-24  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/c6x/c6x.c (predicate_insn): Do not incorrectly share RTL.

2017-02-24  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/arc/arc.c (arc_ccfsm_advance): Only take the PATTERN of
        this_insn if it is an INSN or JUMP_INSN.
        (force_offsettable): Look at base, not at addr.
        * config/arc/predicates.md (brcc_nolimm_operator): Don't call INTVAL
        on things that aren't necessarily CONST_INTs.

2017-02-24  Uros Bizjak  <ubizjak@gmail.com>

        * doc/invoke.texi (x86 Options, -mfpmath=sse): Mention that
        -mfpmath=sse is the default also for x86-32 targets with SSE2
        instruction set when @option{-ffast-math} is enabled

2017-02-24  Jeff Law  <law@redhat.com>

        PR rtl-optimizatoin/79286
        * ira.c (update_equiv_regs): Drop may_trap_p exception to
        dominance test.

2017-02-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79389
        * gimple-ssa-split-paths.c (is_feasible_trace): Properly skip
        debug insns.

2017-02-24  Aldy Hernandez  <aldyh@redhat.com>

        * tree-ssa-loop-niter.c (number_of_iterations_exit): Update
        function comment to reflect reality.
        (loop_exits_before_overflow): Fix typo in function description.

2017-02-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79389
        * gimple-ssa-split-paths.c (is_feasible_trace): Verify more
        properly that a threading opportunity exists.  Detect conditional
        copy/constant propagation opportunities.

2017-02-23  Eric Botcazou  <ebotcazou@adacore.com>

        * config/visium/visium.md (type): Add trap.
        (b): New mode attribute.
        (*btst): Rename into...
        (*btst<mode>): ...this and adjust.
        (*cbranchsi4_btst_insn): Rename into...
        (*cbranch<mode>4_btst_insn): ...this and adjust.
        (trap): New define_insn.

2017-02-23  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79389
        * ifcvt.c (struct noce_if_info): Add rev_cond field.
        (noce_reversed_cond_code): New function.
        (noce_emit_store_flag): Use rev_cond if non-NULL instead of
        reversed_comparison_code.  Formatting fix.
        (noce_try_store_flag): Test rev_cond != NULL in addition to
        reversed_comparison_code.
        (noce_try_store_flag_constants): Likewise.
        (noce_try_store_flag_mask): Likewise.
        (noce_try_addcc): Use rev_cond if non-NULL instead of
        reversed_comparison_code.
        (noce_try_cmove_arith): Likewise.  Formatting fixes.
        (noce_try_minmax, noce_try_abs): Clear rev_cond.
        (noce_find_if_block): Initialize rev_cond.
        (find_cond_trap): Call noce_get_condition with then_bb == trap_bb
        instead of false as last argument never attempt to reverse it
        afterwards.

2017-02-23  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/79663
        * tree-predcom.c (combine_chains): Process refs in reverse order
        only for ZERO length chains, and add explaining comment.

2017-02-23  Jeff Law  <law@redhat.com>

        PR tree-optimization/79578
        * tree-ssa-dse.c (clear_bytes_written_by): Use OEP_ADDRESS_OF
        in call to operand_equal_p.

2017-01-23  Dominique d'Humieres  <dominiq@lps.ens.fr>

        PR target/71017
        * config/i386/cpuid.h: Fix another undefined behavior.

2017-02-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79683
        * tree-vect-stmts.c (vect_analyze_stmt): Do not overwrite
        vector types for data-refs.

2017-02-23  Martin Liska  <mliska@suse.cz>

        * params.def (PARAM_MIN_NONDEBUG_INSN_UID): Change default to 0.

2017-02-23  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/79665
        * internal-fn.c (get_range_pos_neg): Moved to ...
        * tree.c (get_range_pos_neg): ... here.  No longer static.
        * tree.h (get_range_pos_neg): New prototype.
        * expr.c (expand_expr_real_2) <case TRUNC_DIV_EXPR>: If both arguments
        are known to be in between 0 and signed maximum inclusive, try to
        expand both unsigned and signed divmod and use the cheaper one from
        those.

2017-02-22  Jeff Law  <law@redhat.com>

        PR tree-optimization/79578
        * tree-ssa-dse.c (clear_bytes_written_by): Use operand_equal_p
        to compare base operands.

2017-02-22  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/79211
        * config/rs6000/rs6000.md (*fsel<SFDF:mode><SFDF2:mode>4): Use
        gpc_reg_operand instead of fpr_reg_operand.

2017-02-22  Sameera Deshpande  <sameera.deshpande@imgtec.com>

        * config/mips/mips.c (mips_return_in_memory): Force FP
        vector types to be returned in memory for o32 ABI.

2017-02-22  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (gen_variable_die): For -gdwarf-5, use DW_TAG_variable
        instead of DW_TAG_member for static data member declarations and don't
        set no_linkage_name for static inline data members.
        (gen_member_die): For -gdwarf-5 don't change DW_TAG_variable
        to DW_TAG_member.

2017-02-22  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi: Replace inequality signs with square brackets
        for -Wnormalized.

2017-02-22  Matthew Fortune  <matthew.fortune@imgtec.com>

        PR target/78660
        * lra-constraints.c (simplify_operand_subreg): Handle
        WORD_REGISTER_OPERATIONS targets.

2017-02-22  Jakub Jelinek  <jakub@redhat.com>

        PR target/70465
        * reg-stack.c (emit_swap_insn): Treat (float_extend:?F (mem:?F))
        and (const_double:?F) like (mem:?F) for the purpose of fxch %st(1)
        elimination by swapping fld*.

2017-02-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79673
        * tree-ssa-pre.c (compute_avail): Use wide_int_to_tree to
        convert the [TARGET_]MEM_REF offset INTEGER_CST, scrapping off
        irrelevant address-space qualifiers and avoiding a
        ADDR_SPACE_CONVERT_EXPR from fold_convert.

2017-02-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79666
        * tree-vrp.c (extract_range_from_binary_expr_1): Make sure
        to not symbolically negate if that may introduce undefined
        overflow.

2017-02-22  Martin Liska  <mliska@suse.cz>

        PR lto/79587
        * data-streamer-in.c (streamer_read_gcov_count): Remove assert.
        * data-streamer-out.c (streamer_write_gcov_count_stream):
        Likewise.
        * value-prof.c (stream_out_histogram_value): Make assert more
        precise based on type of counter.

2017-02-21  Uros Bizjak  <ubizjak@gmail.com>

        PR target/79593
        * config/i386/i386.md (standard_x87sse_constant_load splitter):
        Use nonimmediate_operand instead of memory_operand for operand 1.
        (float-extend standard_x87sse_constant_load splitter): Ditto.

2017-02-21  Jeff Law  <law@redhat.com>

        PR tree-optimization/79621
        * gimple-ssa-isolate-paths.c (find_implicit_erroneous_behavior): Ignore
        blocks with edges to themselves.

2017-02-21  Jakub Jelinek  <jakub@redhat.com>

        PR target/79633
        * tree-chkp-opt.c (chkp_optimize_string_function_calls): Use
        is_gimple_call instead of comparing gimple_code with GIMPLE_CALL.
        Use gimple_call_builtin_p.

        PR target/79570
        * sel-sched.c (moveup_expr_cached): Don't call sel_bb_head
        on temporarily removed DEBUG_INSNs.

        PR tree-optimization/79649
        * tree-loop-distribution.c (classify_partition): Give up on
        non-generic address space loads/stores.

2017-02-21  Aldy Hernandez  <aldyh@redhat.com>

        * doc/loop.texi (Loop manipulation): Remove nonexistent
        tree_ssa_loop_version from the documentation.
        * cfgloopmanip.c (loop_version): Document CONDITION_BB argument.

2017-02-21  Jakub Jelinek  <jakub@redhat.com>

        PR target/79494
        * config/i386/i386.c (ix86_expand_split_stack_prologue): Call
        make_reg_eh_region_note_nothrow_nononlocal on call_insn.
        * config/rs6000/rs6000.c: Include except.h.
        (rs6000_expand_split_stack_prologue): Call
        make_reg_eh_region_note_nothrow_nononlocal on the call insn.

2017-02-21  Martin Jambor  <mjambor@suse.cz>

        PR lto/79579
        * ipa-prop.c (ipa_prop_write_jump_functions): Bail out if no edges
        have been analyzed.

2017-02-21  Martin Jambor  <mjambor@suse.cz>

        * common.opt (-fipa-cp-alignment): Mark as ignored and preserved
        for backward compatibility only.
        * doc/invoke.texi (Option Summary): Remove all references to
        -fipa-cp-alignment.

2017-02-21  Matthew Fortune  <matthew.fortune@imgtec.com>

        PR target/78660
        Revert:
        2017-02-20  Matthew Fortune  <matthew.fortune@imgtec.com>

        * lra-constraints.c (curr_insn_transform): Handle
        WORD_REGISTER_OPERATIONS requirements when reloading SUBREGs.

2017-02-21  Martin Liska  <mliska@suse.cz>

        * config/i386/i386.opt: Replace -masm-dialect with -masm.

2017-02-21  Thomas Schwinge  <thomas@codesourcery.com>

        PR translation/79638
        * config/nvptx/nvptx.c (ENTRY_TEMPLATE): Single out "%ntid.y".

2017-02-21  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/67205
        * config/arm/arm.c (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): Define.
        (arm_function_ok_for_sibcall): Return false for an indirect call by
        descriptor if all the argument registers are used.
        (arm_relayout_function): Use FUNCTION_ALIGNMENT macro to adjust the
        alignment of the function.

2017-02-21  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/61441
        * simplify-rtx.c (simplify_const_unary_operation): For
        -fsignaling-nans and sNaN operand, return NULL_RTX rather than
        the sNaN unmodified.

2017-02-20  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * Makefile.in (BUILD_SYSTEM_HEADER_DIR): New make variabe.
        (LIMITS_H_TEST, if_multiarch, stmp-fixinc): Use BUILD_SYSTEM_HEADER_DIR
        instead of SYSTEM_HEADER_DIR.

2017-02-20  Gerald Pfeifer  <gerald@pfeifer.com>
            Martin Liška  <mliska@suse.cz>

        * doc/invoke.texi (use-after-scope-direct-emission-threshold):
        Fix typos and grammar, use active voice, and clarify.

2017-02-20  Marek Polacek  <polacek@redhat.com>

        PR middle-end/79537
        * gimplify.c (gimplify_expr): Handle unused *&&L;.

        PR sanitizer/79558
        * ubsan.c (ubsan_type_descriptor): Check if TYPE_MAX_VALUE is null.

2017-02-20  Jakub Jelinek  <jakub@redhat.com>

        PR target/79568
        * config/i386/i386.c (ix86_expand_builtin): Handle
        OPTION_MASK_ISA_AVX512VL and OPTION_MASK_ISA_64BIT in
        ix86_builtins_isa[fcode].isa as a requirement of those
        flags and any other flag in the bitmask.
        (ix86_init_mmx_sse_builtins): Use 0 instead of
        ~OPTION_MASK_ISA_64BIT as mask.
        * config/i386/i386-builtin.def (__builtin_ia32_rdtsc,
        __builtin_ia32_rdtscp, __builtin_ia32_pause, __builtin_ia32_bsrsi,
        __builtin_ia32_rdpmc, __builtin_ia32_rolqi, __builtin_ia32_rolhi,
        __builtin_ia32_rorqi, __builtin_ia32_rorhi): Likewise.

2017-02-20  Matthew Fortune  <matthew.fortune@imgtec.com>

        PR target/78012
        * lra-constraints.c (split_reg): Check requested split mode
        is supported by the register.

2017-02-20  Matthew Fortune  <matthew.fortune@imgtec.com>

        * lra-constraints.c (simplify_operand_subreg): Remove early
        return false.

2017-02-20  Matthew Fortune  <matthew.fortune@imgtec.com>

        PR target/78660
        * lra-constraints.c (curr_insn_transform): Tighten condition
        for converting SUBREG reloads from OP_OUT to OP_INOUT.

2017-02-20  Matthew Fortune  <matthew.fortune@imgtec.com>

        PR target/78660
        * lra-constraints.c (curr_insn_transform): Handle
        WORD_REGISTER_OPERATIONS requirements when reloading SUBREGs.

2017-02-19  Uros Bizjak  <ubizjak@gmail.com>

        Revert:
        2016-05-30  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sync.md (mfence_nosse): Use "lock orl $0, -4(%esp)".

2017-02-19  Jonathan Wakely  <jwakely@redhat.com>

        PR c++/69523
        * doc/invoke.texi (C++ Dialect Options) [-Wliteral-suffix]: Update
        description.

2017-02-19  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * gimple-pretty-print.c (dump_ternary_rhs): Adjust gimple dump format
        for FMA_EXPR.

2017-02-18  Jakub Jelinek  <jakub@redhat.com>

        * final.c (last_columnnum, override_columnnum): New variables.
        (final_start_function): Set last_columnnum, pass it to begin_prologue
        hook and pass 0 to dwarf2out_begin_prologue.
        (final_scan_insn): Update override_columnnum.  Pass last_columnnum
        to source_line debug hook.
        (notice_source_line): Compute last_columnnum and for debug_column_info
        return true on column changes.
        * debug.h (struct gcc_debug_hooks): Add column argument to
        source_line and begin_prologue hooks.
        (debug_nothing_int_charstar_int_bool): Remove prototype.
        (debug_nothing_int_int_charstar,
        debug_nothing_int_int_charstar_int_bool): New prototypes.
        (dwarf2out_begin_prologue): Add column argument.
        * debug.c (do_nothing_debug_hooks): Adjust source_line and
        begin_prologue hooks.
        (debug_nothing_int_charstar_int_bool): Remove.
        (debug_nothing_int_int_charstar,
        debug_nothing_int_int_charstar_int_bool): New functions.
        * dwarf2out.c (dwarf2out_begin_prologue): Add column argument, pass it
        through to dwarf2out_source_line.
        (dwarf2_lineno_debug_hooks): Adjust begin_prologue hook.
        (dwarf2out_source_line): Add column argument, emit it if requested.
        * sdbout.c (sdbout_source_line, sdbout_begin_prologue): Add column
        arguments.
        * xcoffout.h (xcoffout_begin_prologue, xcoffout_source_line): Likewise.
        * xcoffout.c (xcoffout_begin_prologue, xcoffout_source_line): Likewise.
        * vmsdbgout.c (vmsdbgout_begin_prologue): Add column argument, pass it
        through to dwarf2out_begin_prologue.
        (vmsdbgout_source_line): Add column argument, pass it through to
        dwarf2out_source_line.
        * dbxout.c (dbxout_begin_prologue): Add column argument, adjust
        dbxout_source_line caller.
        (dbxout_source_line): Add column argument.

        * common.opt (gno-column-info, gcolumn-info): New options.
        * dwarf2out.c (dwarf2_lineno_debug_hooks): Formatting fix.
        (check_die): Also test for multiple DW_AT_decl_column attributes.
        (add_src_coords_attributes, dwarf2out_imported_module_or_decl_1): Add
        DW_AT_decl_column if requested.
        (gen_subprogram_die): Compare and/or add also DW_AT_decl_column
        if requested.
        (gen_variable_die): Likewise.
        (add_call_src_coords_attributes): Add DW_AT_call_column if requested.
        * doc/invoke.texi (-gcolumn-info, -gno-column-info): Document.

        PR target/79569
        * config/i386/i386.opt (m3dnowa): Replace Undocumented with Report.
        * common/config/i386/i386-common.c (OPTION_MASK_ISA_3DNOW_A_SET): Define.
        (ix86_handle_option): Handle OPT_m3dnowa.
        * doc/invoke.texi (-m3dnowa): Document.
        * doc/extend.texi (__builtin_ia32_pmulhuw, __builtin_ia32_pf2iw): Use
        -m3dnowa instead of -m3dnow -march=athlon.

        PR target/79559
        * config/i386/i386.c (ix86_print_operand): Use output_operand_lossage
        instead of gcc_assert for K, r and R code checks.  Formatting fixes.

2017-02-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/79261
        * config/rs6000/rs6000.c (rs6000_expand_ternop_builtin): Add
        support for CODE_FOR_vsx_xxpermdi_v2d[fi]_be.
        * config/rs6000/rs6000.md (reload_gpr_from_vsx<mode>): Call
        generator for vsx_xxpermdi_<mode>_be.
        * config/rs6000/vsx.md (vsx_xxpermdi_<mode>): Remove logic to
        force big-endian semantics.
        (vsx_xxpermdi_<mode>_be): New define_expand with same
        implementation as previous version of vsx_xxpermdi_<mode>.

2017-02-17  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79327
        * gimple-ssa-sprintf.c (format_integer): Remove likely_adjust
        variable, its initialization and use.

2017-02-17  Julia Koval  <julia.koval@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_RDPID_SET): New.
        (OPTION_MASK_ISA_PKU_UNSET): New.
        (ix86_handle_option): Handle -mrdpid.
        * config/i386/cpuid.h (bit_RDPID): New.
        * config/i386/driver-i386.c (host_detect_local_cpu):
        Detect RDPID feature.
        * config/i386/i386-builtin.def (__builtin_ia32_rdpid): New.
        * config/i386/i386-c.c (ix86_target_macros_internal):
        Handle RDPID flag.
        * config/i386/i386.c (ix86_target_string): Add -mrdpid to isa2_opts.
        (ix86_valid_target_attribute_inner_p): Add "rdpid".
        (ix86_expand_builtin): Handle IX86_BUILTIN_RDPID.
        * config/i386/i386.h (TARGET_RDPID, TARGET_RDPID_P): New.
        * config/i386/i386.md (define_insn "rdpid"): New.
        * config/i386/i386.opt Add -mrdpid.
        * config/i386/immintrin.h (_rdpid_u32): New.

2017-02-17  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/79541
        * lra-constraints.c (curr_insn_transform): Remove wrong asm insn
        instead of transforming it into USE.

2017-02-17  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (extendsfdf2): Remove default arguments.
        If HONOR_SNANS (SFmode) force the input to a register.
        (*extendsfdf2_fpr): Add !HONOR_SNANS (SFmode) condition.
        (*extendsfdf2_snan): New pattern, used when using SNaNs; it generates
        an frsp or similar insn.

2017-02-17  Martin Liska  <mliska@suse.cz>

        PR rtl-optimization/79577
        * params.def (selsched-max-sched-times): Increase minimum to 1.

2017-02-17  Martin Liska  <mliska@suse.cz>

        PR rtl-optimization/79574
        * gcse.c (want_to_gcse_p): Prevent integer overflow.

2017-02-17  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/79529
        * tree-ssa-loop-unswitch.c (is_maybe_undefined): Use
        ssa_defined_default_def_p to handle cases which are implicitly
        defined.
        * tree-ssa.c (ssa_defined_default_def_p): New function.
        (ssa_undefined_value_p): Use ssa_defined_default_def_p to handle cases
        which are implicitly defined.
        * tree-ssa.h (ssa_defined_default_def_p): Declare.

2017-02-17  Richard Biener  <rguenther@suse.de>

        PR middle-end/79576
        * params.def (max-ssa-name-query-depth): Limit to 10.

2017-02-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79552
        * tree-ssa-structalias.c (visit_loadstore): Properly verify
        default defs.

2017-02-17  Richard Biener  <rguenther@suse.de>

        PR bootstrap/79567
        * genmatch.c (output_line_directive): Handle DIR_SEPARATOR_2.

2017-02-17  Marek Polacek  <polacek@redhat.com>

        PR middle-end/79536
        * fold-const.c (fold_negate_expr_1): Renamed from fold_negate_expr.
        (fold_negate_expr): New wrapper.

2017-02-16  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (C++ Dialect Options) [-Wno-non-template-friend]: 
        Correct terminology and de-emphasize pre-standard behavior.

2017-02-16  Alan Modra  <amodra@gmail.com>

        PR rtl-optimization/79286
        * ira.c (def_dominates_uses): New function.
        (update_equiv_regs): Don't create an equivalence for insns that
        may trap where the register def does not dominate the use.

2017-02-16  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/78127
        * lra.c (lra): Call lra_eliminate before finish the loop after
        lra_constraint.

2017-02-16  Richard Biener  <rguenther@suse.de>

        * graphite.h: Do not include isl/isl_val_gmp.h, instead include
        isl/isl_val.h.
        * graphite-isl-ast-to-gimple.c (gmp_cst_to_tree): Remove.
        (gcc_expression_from_isl_expr_int): Use generic isl_val interface.
        * graphite-sese-to-poly.c: Do not include isl/isl_val_gmp.h.
        (isl_val_int_from_wi): New function.
        (extract_affine_gmp): Rename to ...
        (extract_affine_wi): ... this, take a widest_int.
        (extract_affine_int): Just wrap extract_affine_wi.
        (add_param_constraints): Use isl_val_int_from_wi.
        (add_loop_constraints): Likewise, and extract_affine_wi.

2017-02-15  Jeff Law  <law@redhat.com>

        PR middle-end/79521
        * ira-costs.c (scan_one_insn): Check have_regs_of_mode before calling
        ira_init_register_move_cost_if_necessary.

2017-02-15  Martin Sebor  <msebor@redhat.com>

        PR middle-end/32003
        * doc/invoke.texi (-fdump-final-insns): Replace option accidentally
        removed in a prior commit.

2017-02-15  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/79347
        * tree-vect-loop-manip.c (vect_do_peeling): Maintain profile
        counters during peeling.

2017-02-15  Thomas Schwinge  <thomas@codesourcery.com>

        * Makefile.in (site.exp): Remove "set ISLVER".

2017-02-15  Jakub Jelinek  <jakub@redhat.com>

        PR target/79487
        * real.c (real_from_integer): Call real_convert even for decimal.

2017-02-15  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        PR target/79421
        * config/s390/s390.c: define TARGET_CUSTOM_FUNCTION_DESCRIPTORS.

2017-02-14  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-cores.def (thunderx2t99): Move to under 'C"
        cores and change the partno/implementer to be correct.
        (thunderx2t99p1): New core which replaces thunderx2t99 and still has
        the 'B" as the implementer.
        * config/aarch64/aarch64-tune.md: Regenerate.

2017-02-14  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000.c: Add case statement entry to make the
        xvcvuxdsp built-in argument unsigned.
        * config/rs6000/vsx.md: Fix the source and return operand types so they
        match the instruction definitions from the ISA document.  Fix typo
        in the instruction generation for the (define_insn "vsx_xvcvuxdsp"
        statement.

2017-02-14  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/79282
        * lra-int.h (struct lra_operand_data, struct lra_insn_reg): Add
        member early_clobber_alts.
        * lra-lives.c (reg_early_clobber_p): New.
        (process_bb_lives): Use it.
        * lra.c (new_insn_reg): New arg early_clobber_alts.  Use it.
        (debug_operand_data): Initialize early_clobber_alts.
        (setup_operand_alternative): Set up early_clobber_alts.
        (collect_non_operand_hard_regs): Ditto.  Pass early clobber
        alternatives to new_insn_reg.
        (add_regs_to_insn_regno_info): Add arg early_clobber_alts.  Use
        it.
        (lra_update_insn_regno_info): Pass the new arg.

2017-02-14  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/79505
        * omp-offload.c (free_oacc_loop): Release loop->ifns vector.
        (new_oacc_loop_raw): Don't clear already cleared fields.

        PR target/79481
        * config/i386/avx512pfintrin.h (_mm512_prefetch_i32gather_pd,
        _mm512_prefetch_i32gather_ps, _mm512_prefetch_i64gather_pd,
        _mm512_prefetch_i64gather_ps): New inline functions and macros.

2017-02-14  Uros Bizjak  <ubizjak@gmail.com>

        PR target/79495
        * config/i386/i386.md (*movxf_internal): Add (o,rC) alternative.

2017-02-14  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/79498
        * config/i386/i386.c (timode_scalar_chain::convert_insn): Insert
        the extra instruction to the right place to store 128-bit constant
        when needed.

2017-02-14  Martin Sebor  <msebor@redhat.com>

        PR middle-end/79448
        * gimple-ssa-sprintf.c (format_directive): Avoid issuing INT_MAX
          warning for strings of unknown length.

2017-02-13  Segher Boessenkool  <segher@kernel.crashing.org>

        * config.gcc (supported_defaults) [powerpc*-*-*]: Update.

2017-02-14  Jeff Law  <law@redhat.com>

        PR target/79404
        * ira-costs.c (scan_one_insn): Initialize register move costs
        for pseudos seen in USE/CLOBBER insns.

        PR tree-optimization/79095
        * tree-vrp.c (extract_range_from_binary_expr_1): For EXACT_DIV_EXPR,
        if the numerator has the range ~[0,0] make the resultant range ~[0,0].
        (extract_range_from_binary_expr): For MINUS_EXPR with no derived range,
        if the operands are known to be not equal, then the resulting range
        is ~[0,0].
        (intersect_ranges): If the new range is ~[0,0] and the old range is
        wide, then prefer ~[0,0].
        * tree-vrp.c (overflow_comparison_p_1): New function.
        (overflow_comparison_p): New function.
        * tree-vrp.c (register_edge_assert_for_2): Register additional asserts
        if NAME is used in an overflow test.
        (vrp_evaluate_conditional_warnv_with_ops): If the ops represent an
        overflow check that can be expressed as an equality test, then adjust
        ops to be that equality test.

2017-02-14  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390-builtin-types.def: Remove flags argument.
        * config/s390/s390.c (s390_init_builtins): Likewise.

2017-02-14  Martin Liska  <mliska@suse.cz>

        * tree-ssa-loop-unswitch.c (hoist_guard): Release get_loop_body
        vector.  Fix trailing white spaces.

2017-02-14  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64.c (aarch64_simd_container_mode): Handle
        HFmode.

2017-02-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR rtl-optimization/68664
        * config/arm/arm.c (arm_sched_can_speculate_insn):
        New function.  Declare prototype.
        (TARGET_SCHED_CAN_SPECULATE_INSN): Define.

2017-02-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR rtl-optimization/68664
        * config/aarch64/aarch64.c (aarch64_sched_can_speculate_insn):
        New function.
        (TARGET_SCHED_CAN_SPECULATE_INSN): Define.

2017-02-14  Amit Pawar  <amit.pawar@amd.com>

        * config/i386/i386.c (znver1_cost): Fix the alignment for function and
        max skip bytes for function, loop and jump.

2017-02-14  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * gimple-pretty-print.c (dump_unary_rhs): Adjust dump format for
        ABS_EXPR for gimple dump.

2017-02-14  Jakub Jelinek  <jakub@redhat.com>

        PR target/79462
        * config/sh/sh.c (expand_cbranchdi4): Don't clear operands[4].

        PR tree-optimization/79408
        * tree-vrp.c (simplify_div_or_mod_using_ranges): Handle also the
        case when on TRUNC_MOD_EXPR op0 is INTEGER_CST.
        (simplify_stmt_using_ranges): Call simplify_div_or_mod_using_ranges
        also if rhs1 is INTEGER_CST.

2017-02-14  Richard Biener  <rguenther@suse.de>

        PR middle-end/79432
        * tree-into-ssa.c (insert_phi_nodes): When the function can
        have abnormal edges rewrite SSA names with broken use-def
        dominance out of SSA and register them for PHI insertion.

2017-02-13  Martin Sebor  <msebor@redhat.com>

        PR middle-end/79496
        * gimple-ssa-sprintf.c (pass_sprintf_length::handle_gimple_call): Avoid
        clearing info.nowrite flag when snprintf size argument is a range.

2017-02-13  Jakub Jelinek  <jakub@redhat.com>

        * cprop.c (cprop_jump): Add missing space in string literal.
        * tree-ssa-structalias.c (rewrite_constraints): Likewise.
        (get_constraint_for_component_ref): Likewise.
        * df-core.c (df_worklist_dataflow_doublequeue): Likewise.
        * tree-outof-ssa.c (insert_partition_copy_on_edge): Likewise.
        * lra-constraints.c (process_alt_operands): Likewise.
        * ipa-inline.c (inline_small_functions): Likewise.
        * tree-ssa-sccvn.c (visit_reference_op_store): Likewise.
        * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Likewise.
        * trans-mem.c (diagnose_tm_1_op): Likewise.
        * omp-grid.c (grid_find_single_omp_among_assignments): Likewise.
        (grid_parallel_clauses_gridifiable): Likewise.

        * config/nvptx/mkoffload.c (process): Add space in between
        , and %d.

        * config/i386/i386.h (REG_CLASS_NAMES): Add , in between
        "MOD4_SSE_REGS" and "ALL_REGS".

        * spellcheck.c (test_data): Add , in between "foo" and "food".

2017-02-13  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        PR target/79449
        * config/rs6000/rs6000.c (expand_block_compare): Make sure runtime
        boundary crossing check and subsequent code generation agree.

2017-02-13  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (has_memory_op): Delete.
        (aarch64_madd_needs_nop): Use contains_mem_rtx_p instead of
        has_memory_op.

2017-02-13  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/79388
        PR rtl-optimization/79450
        * combine.c (distribute_notes): When removing TEM_INSN for which
        corresponding dest has last value recorded, invalidate that last
        value.

2017-02-13  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.c (arm_print_tune_info): Use ASM_COMMENT_START instead
        of explicit '@'.  Add missing assembly comment marker on branch costs
        printout.

2017-02-13  Nathan Sidwell  <nathan@acm.org>

        * gengtype-lex.l (<in_struct>): Add '/'.

2017-02-13  Martin Liska  <mliska@suse.cz>

        PR c/79471
        * calls.c (expand_call): Replace XALLOCAVEC with XCNEWVEC.

2017-02-13  Richard Biener  <rguenther@suse.de>

        * configure.ac (HAVE_ISL_OPTIONS_SET_SCHEDULE_SERIALIZE_SCCS):
        Remove.
        * configure: Re-generate.
        * config.in: Likewise.
        * graphite-dependences.c: Simplify as if
        HAVE_ISL_OPTIONS_SET_SCHEDULE_SERIALIZE_SCCS was defined.
        * graphite-isl-ast-to-gimple.c: Likewise.
        * graphite-optimize-isl.c: Likewise.
        * graphite-poly.c: Likewise.
        * graphite-sese-to-poly.c: Likewise.
        * graphite.h: Likewise.
        * toplev.c: Include isl/version.h and use isl_version () for
        printing the ISL version.
        * doc/install.texi: Update ISL requirement.

2017-02-12  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/standards.texi (Standards): Update reference to
        Objective-C 2.0.

2017-02-12  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/extend.texi (Named Address Spaces): sourceware.org now
        defaults to https.
        * doc/install.texi (Binaries): Ditto.
        (Specific): Ditto.

2017-02-11  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/cpp.texi: Replace "stringify"/"stringification" with C
        standard terminology "stringize"/"stringizing" throughout.
        * doc/cppinternals.texi: Likewise.

2017-02-11  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/extend.texi: Fix some spelling mistakes and typos.
        * doc/invoke.texi: Likewise.

2017-02-11  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/79224
        * params.def (inline-min-speedup) Change from 10 to 8.

2017-02-11  Jakub Jelinek  <jakub@redhat.com>

        * doc/invoke.texi (fopenmp): Bump OpenMP version from 4.0 to
        4.5.

2017-02-11  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/79224
        * ipa-inline-analysis.c (get_minimal_bb): New function.
        (record_modified): Use it.
        (remap_edge_change_prob): Handle also ancestor functions.

2017-02-11  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/contrib.texi (Contributors): Remove broken link into
        the Mauve CVS repository.

2017-02-11  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/79454
        * internal-fn.c (expand_vector_ubsan_overflow): Use piece-wise
        result computation whenever lhs doesn't have vector mode, not
        just when it has BLKmode.

2017-02-10  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/makefile.texi (profiledbootstrap): Refer to the
        installation instructions only in textual form.

2017-02-10  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        PR target/79295
        * config/rs6000/altivec.md (bcd<bcd_add_sub>): Fix constraints.

2017-02-10  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Specific): Use https for blackfin.uclinux.org.
        (Specific): Update mingw-w64 reference.
        (Binaries): Ditto.
        (Specific): Remove broken link to Renesas RX processor.

2017-02-10  Richard Biener  <rguenther@suse.de>

        * toplev.c (process_options): Do not mention obsolete graphite
        options when printing sorry message about missing graphite support.
        Mention -floop-nest-optimize.

2017-02-10  Christophe Lyon  <christophe.lyon@linaro.org>

        * config/aarch64/arm_neon.h (vtst_p8): Rewrite without asm.
        (vtst_p16): Likewise.
        (vtstq_p8): Likewise.
        (vtstq_p16): Likewise.
        (vtst_p64): New.
        (vtstq_p64): Likewise.
        * config/arm/arm_neon.h (vgetq_lane_p64): New.
        (vset_lane_p64): New.
        (vsetq_lane_p64): New.

2017-02-10  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79411
        * tree-ssa-reassoc.c (is_reassociable_op): Return false if
        stmt operands are SSA_NAMEs used in abnormal phis.
        (can_reassociate_p): Return false if op is SSA_NAME used in abnormal
        phis.

2017-02-09  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/70795
        * cgraphunit.c (cgraph_node::add_new_function): Set externally_visible
        flag if needed.

2017-02-09  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-unswitch.c (hoist_guard): Update profile.

2017-02-09  Jakub Jelinek  <jakub@redhat.com>

        * omp-offload.c (oacc_loop_auto_partitions): Use || instead of |
        to avoid warning.

        PR c/79413
        * gimplify.h (is_gimple_sizepos): Only test for INTEGER_CST constants,
        not arbitrary TREE_CONSTANT.

        PR c/79431
        * gimplify.c (gimplify_adjust_omp_clauses): Ignore
        "omp declare target link" attribute unless is_global_var.
        * omp-offload.c (find_link_var_op): Likewise.

2017-02-09  Nathan Sidwell  <nathan@codesourcery.com>
            Chung-Lin Tang  <cltang@codesourcery.com>

        * gimplify.c (gimplify_scan_omp_clauses): No special handling for
        OMP_CLAUSE_TILE.
        (gimplify_adjust_omp_clauses): Don't delete TILE.
        (gimplify_omp_for): Deal with TILE.
        * internal-fn.c (expand_GOACC_TILE): New function.
        * internal-fn.def (GOACC_DIM_POS): Comment may be overly conservative.
        (GOACC_TILE): New.
        * omp-expand.c (struct oacc_collapse): Add tile and outer fields.
        (expand_oacc_collapse_init): Add LOC paramter.  Initialize tile
        element fields.
        (expand_oacc_collapse_vars): Add INNER parm, adjust for tiling,
        avoid DIV for outermost collapse var.
        (expand_oacc_for): Insert tile element loop as needed.  Adjust.
        Remove out of date comments, fix whitespace.
        * omp-general.c (omp_extract_for_data): Deal with tiling.
        * omp-general.h (enum oacc_loop_flags): Add OLF_TILE flag,
        adjust OLF_DIM_BASE value.
        (struct omp_for_data): Add tiling field.
        * omp-low.c (scan_sharing_clauses): Allow OMP_CLAUSE_TILE.
        (lower_oacc_head_mark): Add OLF_TILE as appropriate.  Ensure 2 levels
        for auto loops.  Remove default auto determining, moved to
        oacc_loop_fixed_partitions.
        * omp-offload.c (struct oacc_loop): Change 'ifns' to vector of call
        stmts, add e_mask field.
        (oacc_dim_call): New function, abstracted out from oacc_thread_numbers.
        (oacc_thread_numbers): Use oacc_dim_call.
        (oacc_xform_tile): New.
        (new_oacc_loop_raw): Initialize e_mask, adjust for ifns vector.
        (finish_oacc_loop): Adjust for ifns vector.
        (oacc_loop_discover_walk): Append loop abstraction sites to list,
        add case for GOACC_TILE fns.
        (oacc_loop_xform_loop): Delete.
        (oacc_loop_process): Iterate over call list directly, and add
        handling for GOACC_TILE fns.
        (oacc_loop_fixed_partitions): Determine default auto, deal with TILE,
        dump partitioning.
        (oacc_loop_auto_partitions): Add outer_assign parm. Assign all but
        vector partitioning to outer loops.  Assign 2 partitions to loops
        when available. Add TILE handling.
        (oacc_loop_partition): Adjust oacc_loop_auto_partitions call.
        (execite_oacc_device_lower): Process GOACC_TILE fns,
        ignore unknown specs.
        * tree-nested.c (convert_nonlocal_omp_clauses): Allow OMP_CLAUSE_TILE.
        * tree.c (omp_clause_num_ops): Adjust TILE ops.
        * tree.h (OMP_CLAUSE_TILE_ITERVAR, OMP_CLAUSE_TILE_COUNT): New.

2017-02-09  Gerald Pfeifer  <gerald@pfeifer.com>

        * configure.ac (ACX_BUGURL): Update.
        * configure: Regenerate.

2017-02-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69823
        * graphite-scop-detection.c (scop_detection::harmful_loop_in_region):
        Properly enumerate all BBs in the region.  Use auto_vec/auto_bitmap.

2017-02-09  Andrew Burgess  <andrew.burgess@embecosm.com>

        * config/arc/arc-c.def: Add __NPS400__ definition.
        * config/arc/arc.h (CPP_SPEC): Don't define __NPS400__ here.
        (TARGET_NPS400): Define.

2017-02-09  Andrew Burgess  <andrew.burgess@embecosm.com>

        * config/arc/arc-arch.h (arc_arch_t): Move unchanged to earlier in
        file.
        (arc_cpu_t): Change base_architecture field, arch, to a arc_arc_t
        pointer, arch_info.
        (arc_cpu_types): Fill the arch_info field with a pointer into the
        arc_arch_types table.
        (arc_selected_cpu): Declare.
        * config/arc/arc.c (arc_selected_cpu): Make global.
        (arc_selected_arch): Delete.
        (arc_base_cpu): Delete.
        (arc_override_options): Remove references to deleted variables,
        update access to arch information.
        (ARC_OPT): Update access to arch information.
        (ARC_OPTX): Likewise.
        * config/arc/arc.h (arc_base_cpu): Remove declaration.
        (TARGET_ARC600): Update access to arch information.
        (TARGET_ARC601): Likewise.
        (TARGET_ARC700): Likewise.
        (TARGET_EM): Likewise.
        (TARGET_HS): Likewise.
        * config/arc/driver-arc.c (arc_cpu_to_as): Update access to arch
        information.

2017-02-08  Pat Haugen  <pthaugen@us.ibm.com>

        PR target/78604
        * config/rs6000/rs6000.c (rs6000_emit_vector_cond_expr): Invert
        condition/operands for integer GE/LE/GEU/LEU operations.

2017-02-08  Segher Boessenkool  <segher@kernel.crashing.org>

        PR translation/79397
        * config/rs6000/rs6000.opt (maltivec=le, maltivec=be): Fix spelling
        of AltiVec.

2017-02-08  Martin Jambor  <mjambor@suse.cz>

        PR ipa/79375
        * ipa-prop.c (ipa_alloc_node_params): Make static, return bool
        whether allocation happened.
        (ipa_initialize_node_params): Do not call ipa_alloc_node_params if
        nothing was allocated.

2017-02-08  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79408
        * tree-vrp.c (simplify_div_or_mod_using_ranges): If op1 is not
        constant, but SSA_NAME with a known integer range, use the minimum
        of that range instead of op1 to determine if modulo can be replaced
        with its first operand.

2016-02-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/riscv/riscv.c (riscv_build_integer_1): Avoid use of INT16_MAX.

2017-02-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71824
        * graphite-scop-detection.c (scop_detection::build_scop_breadth):
        Check all loops contained in the merged region.

2017-02-07  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64.md (popcount<mode>2): New pattern.

2017-02-07  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-cores.def (thunderx): Disable LSE.
        (thunderxt88): Likewise.
        (thunderxt81): Disable LSE and change v8.1 to v8.
        (thunderxt83): Likewise.

2017-02-07  Jakub Jelinek  <jakub@redhat.com>
            Richard Biener  <rguenther@suse.de>

        PR middle-end/79399
        * ira-int.h (struct target_ira_int): Change x_max_struct_costs_size
        type from int to size_t.
        * ira-costs.c (struct_costs_size): Change type from int to size_t.

2017-02-07  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/79386
        * cprop.c (bypass_conditional_jumps): Initialize
        bypass_last_basic_block already before splitting bbs after
        unconditional traps...
        (bypass_conditional_jumps): ... rather than here.

        PR target/79299
        * config/i386/sse.md (xtg_mode, gatherq_mode): New mode attrs.
        (*avx512f_gathersi<mode>, *avx512f_gathersi<mode>_2,
        *avx512f_gatherdi<mode>, *avx512f_gatherdi<mode>_2): Use them,
        fix -masm=intel patterns.

2017-02-07  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79256
        PR middle-end/79278
        * builtins.c (get_object_alignment_2): Use min_align_of_type
        to extract alignment for MEM_REFs to honor BIGGEST_FIELD_ALIGNMENT
        and ADJUST_FIELD_ALIGN.

        * doc/tm.texi.in (ADJUST_FIELD_ALIGN): Adjust to take additional
        type parameter.
        * doc/tm.texi: Regenerate.
        * stor-layout.c (layout_decl): Adjust.
        (update_alignment_for_field): Likewise.
        (place_field): Likewise.
        (min_align_of_type): Likewise.
        * config/arc/arc.h (ADJUST_FIELD_ALIGN): Adjust.
        * config/epiphany/epiphany.h (ADJUST_FIELD_ALIGN): Likewise.
        * config/epiphany/epiphany.c (epiphany_adjust_field_align): Likewise.
        * config/frv/frv.h (ADJUST_FIELD_ALIGN): Likewise.
        * config/frv/frv.c (frv_adjust_field_align): Likewise.
        * config/i386/i386.h (ADJUST_FIELD_ALIGN): Likewise.
        * config/i386/i386.c (x86_field_alignment): Likewise.
        * config/rs6000/aix.h (ADJUST_FIELD_ALIGN): Likewise.
        * config/rs6000/darwin.h (ADJUST_FIELD_ALIGN): Likewise.
        * config/rs6000/freebsd64.h (ADJUST_FIELD_ALIGN): Likewise.
        * config/rs6000/linux64.h (ADJUST_FIELD_ALIGN): Likewise.
        * config/rs6000/sysv4.h (ADJUST_FIELD_ALIGN): Likewise.
        * config/rs6000/rs6000.c (rs6000_special_adjust_field_align_p):
         Likewise.

        Revert
        2017-01-30  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79256
        * targhooks.c (default_builtin_vector_alignment_reachable): Honor
        BIGGEST_FIELD_ALIGNMENT and ADJUST_FIELD_ALIGN to fix up bogus
        alignment on TYPE.

2017-02-07  Toma Tabacu  <toma.tabacu@imgtec.com>

        * config/mips/mips.c (mips_expand_builtin_insn): Convert the QImode
        argument of the pshufh, psllh, psllw, psrah, psraw, psrlh, psrlw
        builtins to SImode and emit a zero-extend, if necessary.

2017-02-06  Palmer Dabbelt  <palmer@dabbelt.com>

        * docs/invoke.texi (RISC-V Options): Alphabetize.

2017-02-06  Palmer Dabbelt  <palmer@dabbelt.com>

        * doc/invoke.texi (RISC-V Options): Use two spaces to separate
        options.

2017-02-06  Palmer Dabbelt  <palmer@dabbelt.com>

        * config/riscv/riscv.c: New file.
        * common/config/riscv/riscv-common.c: Likewise.
        * config.gcc: Likewise.
        * config/riscv/constraints.md: Likewise.
        * config/riscv/elf.h: Likewise.
        * config/riscv/generic.md: Likewise.
        * config/riscv/linux.h: Likewise.
        * config/riscv/multilib-generator: Likewise.
        * config/riscv/peephole.md: Likewise.
        * config/riscv/pic.md: Likewise.
        * config/riscv/predicates.md: Likewise.
        * config/riscv/riscv-builtins.c: Likewise.
        * config/riscv/riscv-c.c: Likewise.
        * config/riscv/riscv-ftypes.def: Likewise.
        * config/riscv/riscv-modes.def: Likewise.
        * config/riscv/riscv-opts.h: Likewise.
        * config/riscv/riscv-protos.h: Likewise.
        * config/riscv/riscv.h: Likewise.
        * config/riscv/riscv.md: Likewise.
        * config/riscv/riscv.opt: Likewise.
        * config/riscv/sync.md: Likewise.
        * config/riscv/t-elf-multilib: Likewise.
        * config/riscv/t-linux: Likewise.
        * config/riscv/t-linux-multilib: Likewise.
        * config/riscv/t-riscv: Likewise.
        * configure.ac: Likewise.
        * doc/contrib.texi: Add Kito Cheng, Palmer Dabbelt, and Andrew
        Waterman as RISC-V maintainers.
        * doc/install.texi: Add RISC-V entries.
        * doc/invoke.texi: Add RISC-V options section.
        * doc/md.texi: Add RISC-V constraints section.
        * configure: Regenerated.

2017-02-06  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/66144
        * config/rs6000/vector.md (vcond<mode><mode>): Allow the true and
        false values to be constant vectors with all 0 or all 1 bits set.
        (vcondu<mode><mode>): Likewise.
        * config/rs6000/predicates.md (vector_int_reg_or_same_bit): New
        predicate.
        (fpmask_comparison_operator): Update comment.
        (vecint_comparison_operator): New predicate.
        * config/rs6000/rs6000.c (rs6000_emit_vector_cond_expr): Optimize
        vector conditionals when the true and false values are constant
        vectors with all 0 bits or all 1 bits set.

2017-02-06  Martin Sebor  <msebor@redhat.com>

        PR  tree-optimization/79376
        * gimple-fold.c (get_range_strlen): Set the minimum length to zero.

2017-02-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (vector modes -> vec_extract* splitter): Use
        explicit subreg RTX with operand 1.  Use VECTOR_MODE_P predicate
        to simplify split condition.

2017-02-06  Jakub Jelinek  <jakub@redhat.com>

        * omp-expand.c (oxpand_omp_atomic_fetch_op,
        expand_omp_atomic_pipeline): Return false if can_atomic_load_p is
        false.

2017-02-06  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/68664
        * target.def (can_speculate_insn): New hook.
        * doc/tm.texi.in (TARGET_SCHED_CAN_SPECULATE_INSN): New hook.
        * doc/tm.texi: Regenerate.
        * sched-rgn.c (can_schedule_ready_p): Use the new hook.
        * config/rs6000/rs6000.c (TARGET_SCHED_CAN_SPECULATE_INSN): New macro.
        (rs6000_sched_can_speculate_insn): New function.

2017-02-06  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79284
        * tree-vectorizer.h (VECT_SCALAR_BOOLEAN_TYPE_P): Define.
        * tree-vect-stmts.c (vect_get_vec_def_for_operand,
        vectorizable_mask_load_store, vectorizable_operation,
        vect_is_simple_cond, get_same_sized_vectype): Use it instead
        of comparing TREE_CODE of a type against BOOLEAN_TYPE.
        * tree-vect-patterns.c (check_bool_pattern, search_type_for_mask_1,
        vect_recog_bool_pattern, vect_recog_mask_conversion_pattern): Likewise.
        * tree-vect-slp.c (vect_get_constant_vectors): Likewise.
        * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
        Remove redundant gimple_code (stmt) == GIMPLE_ASSIGN test after
        is_gimple_assign (stmt).  Replace another such test with
        is_gimple_assign (stmt).

2017-02-06  Georg-Johann Lay  <avr@gjlay.de>

        PR target/78883
        * config/avr/avr.c (rtl-iter.h): Include it.
        (TARGET_LEGITIMATE_COMBINED_INSN): New hook define...
        (avr_legitimate_combined_insn): ...and implementation.

2017-02-06  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/predicates.md ("larl_operand"): Use macros from hwint.h.
        * config/s390/s390.c (s390_const_operand_ok)
        (s390_canonicalize_comparison, s390_extract_part)
        (s390_single_part, s390_contiguous_bitmask_nowrap_p)
        (s390_contiguous_bitmask_p, s390_rtx_costs)
        (legitimize_pic_address): Likewise.
        * config/s390/s390.md ("clzdi2", "clztidi2"): Likewise.
        * config/s390/vx-builtins.md ("vec_genbytemaskv16qi")
        ("vec_permi<mode>", "vfae<mode>", "*vfaes<mode>", "vstrc<mode>")
        ("*vstrcs<mode>"): Use UINTVAL() to set unsigned HOST_WIDE_INT.
        * config/s390/vector.md ("vec_vfenes<mode>"): Likewise.

2017-02-06  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (*addhi3_zero_extend): Add alternative where
        REGNO($0) == REGNO($1).

2017-02-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/linux.h(SIZE_TYPE): Add comment.

2017-02-06  Julian Brown  <julian@codesourcery.com>
            Naveen H.S  <Naveen.Hurugalawadi@cavium.com>
            Virendra Pathak  <virendra.pathak@broadcom.com>

        * config/aarch64/aarch64-cores.def: Change the scheduler
        to Thunderx2t99.
        * config/aarch64/aarch64.md: Include thunderx2t99.md.
        * config/aarch64/thunderx2t99.md: New file.

2017-02-05  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/standards.texi (Go Language): Update link to language
        standard.

2017-02-05  Jan Hubicka  <hubicka@ucw.cz>

        * tree-eh.c (lower_resx): Sanitize profile.
        (cleanup_empty_eh_move_lp): Likewise.

2017-02-05  Jan Hubicka  <hubicka@ucw.cz>

        PR tree-ssa/79347
        * cfgloopmanip.c (lv_adjust_loop_entry_edge, loop_version): Add
        ELSE_PROB.
        * cfgloopmanip.h (loop_version): Update prototype.
        * modulo-sched.c (sms_schedule): Update call of loop_version.
        * tree-if-conv.c(version_loop_for_if_conversion): Likewise.
        * tree-parloops.c (gen_parallel_loop): Likewise.
        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Likewise.
        * tree-ssa-loop-split.c (split_loop): Likewise.
        * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Likewise.
        * tree-vect-loop-manip.c (vect_loop_versioning): Likewise.

2017-02-05  Martin Liska  <mliska@suse.cz>

        PR bootstrap/78985
        * config/s390/s390.c (s390_gimplify_va_arg): Initialize local
        variable to NULL.
        (print_operand_address): Initialize a struct to zero.

2017-02-05  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/contrib.texi (Contributors): Refer to Hans Boehm's
        garbage collector only in textual form.

2017-02-05  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/extend.texi (x86 specific memory model extensions for
        transactional memory): Simplify a phrase.

2017-02-05  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/79353
        * config/sparc/sync.md (atomic_loaddi_1): Replace 'U' constraint with
        'r', 'm' constraint with 'T' and !TARGET_ARCH64 with TARGET_ARCH32.
        (atomic_storedi_1): Likewise.

2017-02-04  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79338
        * tree-parloops.c (gather_scalar_reductions): Don't call
        vect_analyze_loop_form for loop->inner before destroying loop's
        loop_vinfo.

2017-02-03  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/79327
        * gimple-ssa-sprintf.c (tree_digits): Avoid adding the base prefix
        when precision has resulted in leading zeros.
        (format_integer): Adjust the likely counter to assume an unknown
        argument that may be zero is non-zero.

2017-02-03  Jason Merrill  <jason@redhat.com>

        PR c++/78689
        * tree-inline.c (copy_tree_body_r) [COND_EXPR]: Revert change to
        avoid copying non-taken branch.

2017-02-03  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79340
        * tree-vect-loop.c (vectorizable_reduction): Release
        vec_defs elements after safe_splicing them into other vectors.
        Formatting fixes.

        PR tree-optimization/79327
        * gimple-ssa-sprintf.c (adjust_range_for_overflow): If returning
        true, always set *argmin and *argmax to TYPE_{MIN,MAX}_VALUE of
        dirtype.
        (format_integer): Use wide_int_to_tree instead of build_int_cst
        + to_?hwi.  If argmin is NULL, just set argmin and argmax to
        TYPE_{MIN,MAX}_VALUE of argtype.  Simplify and fix computation
        of shortest and longest sequence.

2017-02-03  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (dimode_scalar_chain::convert_reg):
        Use pextrd for TARGET_SSE4_1 when creating scalar copy.

2017-02-03  Walter Lee  <walt@tilera.com>

        PR target/78862
        * config/tilegx/tilegx.md (tilegx_expand_prologue): Add blockage
        after initial stackframe link reg save.
        * config/tilepro/tilepro.md (tilepro_expand_prologue): Likewise.

2017-02-03  Jakub Jelinek  <jakub@redhat.com>

        PR target/79354
        * config/rs6000/rs6000.md (movsi_from_sf): Use wb constraint instead of
        wu for stxssp alternative.

2017-02-03  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/79352
        * gimple-fold.c (get_range_strlen): Add argument.
        (get_range_strlen): Change return type to bool.
        (get_maxval_strlen): Pass in a dummy argument.
        * gimple-fold.h (get_range_strlen): Change return type to bool.
        * gimple-ssa-sprintf.c (get_string_length): Set unlikely counter.
        * tree.h (array_at_struct_end_p): Add argument.
        * tree.c (array_at_struct_end_p): Handle it.

2017-02-03  Martin Liska  <mliska@suse.cz>

        PR lto/66295
        * multiple_target.c (create_dispatcher_calls): Redirect edge
        from a caller of a dispatcher.
        (expand_target_clones): Make the clones local.
        (ipa_target_clone): Do both target clones and resolvers.
        (ipa_dispatcher_calls): Remove the pass.
        (pass_dispatcher_calls::gate): Likewise.
        (make_pass_dispatcher_calls): Likewise.
        * passes.def (pass_target_clone): Put as very first IPA early
        pass.

2017-02-03  Martin Liska  <mliska@suse.cz>

        * symtab.c (symtab_node::binds_to_current_def_p): Bail out
        in case of a function with ifunc attribute.

2017-02-03  Martin Liska  <mliska@suse.cz>

        * cgraph.c (cgraph_node::dump): Dump function version info.
        * symtab.c (symtab_node::dump_base): Add missing new line.

2017-02-02  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-ifcombine.c (update_profile_after_ifcombine): New function.
        (ifcombine_ifandif): Use it.

2017-02-03  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi: Document default value for
        use-after-scope-direct-emission-threshold.

2017-02-03  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/79339
        * gimple-ssa-sprintf.c (format_floating_max): Call mpfr_clear.
        (format_floating): Likewise.

2017-02-03  Martin Liska  <mliska@suse.cz>

        PR ipa/79337
        * ipa-prop.c (ipa_node_params_t::insert): Remove current
        implementation.
        (ipa_node_params_t::remove): Likewise.
        * ipa-prop.h (ipa_node_params::ipa_node_params): Make default
        initialization from removed ipa_node_params_t::insert.
        (ipa_node_params::~ipa_node_params): Move from removed
        ipa_node_params_t::release.
        * symbol-summary.h (symbol_summary::m_released): New member.
        Do not release a summary twice.  Do not allow to call finalizer
        for types of a summary that live in GGC memory.

2017-02-02  Naveen H.S  <Naveen.Hurugalawadi@cavium.com>

        * config/aarch64/aarch64.c (thunderx2t99_tunings): Enable AES and
        cmp_branch fusion.

2017-02-02  Martin Sebor  <msebor@redhat.com>

        PR middle-end/79275
        * gimple-ssa-sprintf.c (get_string_length): Set lower bound to zero.
        (format_string): Tighten up the range of output for non-constant
        strings and correct the expected range for wide non-constant strings.

2017-02-02  Martin Sebor  <msebor@redhat.com>

        * doc/invoke.texi (-maccumulate-args): Fix bad grammar.

        PR middle-end/32003
        * doc/invoke.texi (-fdump-tree-): Remove pass-specific options from
        index.
        (-fdump-tree-@var): Add to index and document how to come up
        with pass-specific option and dump file names.
        (-fdump-passes): Clarify where to look for output.

2017-02-02  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/77445
        * tree-ssa-threadbackward.c (profitable_jump_thread_path): Dump
        statistics of the analyzed path; allow threading for speed when
        any of BBs along the path are optimized for speed.

2017-02-02  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/78468
        * emit-rtl.c (init_emit): Add ??? comment for problematic alignment
        settings of the virtual registers.

        Revert again
        2016-08-23  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * explow.c (get_dynamic_stack_size): Take known alignment of stack
        pointer + STACK_DYNAMIC_OFFSET into account when calculating the size
        needed.

2017-02-02  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/vx-builtins.md ("vec_ceil", "vec_floor")
        ("vec_trunc", "vec_roundc", "vec_round"): Remove expanders.

2017-02-02  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md: Add missing comments with the expanded
        mnemonics.
        * config/s390/vector.md: Likewise.
        * config/s390/vx-builtins.md: Likewise.

2017-02-02  Jakub Jelinek  <jakub@redhat.com>

        PR target/79197
        * config/rs6000/rs6000.md (*fixuns_trunc<mode>di2_fctiduz): Rename to ...
        (fixuns_trunc<mode>di2): ... this, remove previous expander.  Put all
        conditions on a single line.

2017-02-02  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390-c.c (s390_cpu_cpp_builtins_internal): Rename
        __S390_VX__ to __VX__.

2017-02-01  Andrew Pinski  <apinski@cavium.com>

        * tree-vect-loop.c (vect_compute_single_scalar_iteration_cost): Pass
        stmt_info to record_stmt_cost.
        (vect_get_known_peeling_cost): Pass stmt_info if known to
        record_stmt_cost.
        * config/aarch64/aarch64-protos.h (cpu_vector_cost): Split
        cpu_vector_cost field into
        scalar_int_stmt_cost and scalar_fp_stmt_cost.  Split vec_stmt_cost
        field into vec_int_stmt_cost and vec_fp_stmt_cost.
        * config/aarch64/aarch64.c (generic_vector_cost): Update for the
        splitting of scalar_stmt_cost and vec_stmt_cost.
        (thunderx_vector_cost): Likewise.
        (cortexa57_vector_cost): LIkewise.
        (exynosm1_vector_cost): Likewise.
        (xgene1_vector_cost): Likewise.
        (thunderx2t99_vector_cost): Improve after the splitting of the two
        fields.
        (aarch64_builtin_vectorization_cost): Update for the splitting of
        scalar_stmt_cost and vec_stmt_cost.

2017-02-01  Torvald Riegel  <triegel@redhat.com>
            Richard Henderson  <rth@redhat.com>

        * builtins.c (fold_builtin_atomic_always_lock_free): Make "lock-free"
        conditional on existance of a fast atomic load.
        * optabs-query.c (can_atomic_load_p): New function.
        * optabs-query.h (can_atomic_load_p): Declare it.
        * optabs.c (expand_atomic_exchange): Always delegate to libatomic if
        no fast atomic load is available for the particular size of access.
        (expand_atomic_compare_and_swap): Likewise.
        (expand_atomic_load): Likewise.
        (expand_atomic_store): Likewise.
        (expand_atomic_fetch_op): Likewise.
        * testsuite/lib/target-supports.exp
        (check_effective_target_sync_int_128): Remove x86 because it provides
        no fast atomic load.
        (check_effective_target_sync_int_128_runtime): Likewise.

2017-02-01  Richard Biener  <rguenther@suse.de>

        * graphite.c: Include tree-vectorizer.h for find_loop_location.
        (graphite_transform_loops): Provide opt-info for optimized nests.
        * tree-parloop.c (parallelize_loops): Provide opt-info for
        parallelized loops.

2017-02-01  Richard Biener  <rguenther@suse.de>

        PR middle-end/79315
        * tree-cfg.c (move_stmt_op): Never set TREE_BLOCK when it
        was not set before.

2017-02-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71824
        * graphite-scop-detection.c (scop_detection::build_scop_breadth):
        Verify the loops are valid in the merged SESE region.
        (scop_detection::can_represent_loop_1): Check analyzing the
        evolution of the number of iterations in the region succeeds.

2017-01-31  Ian Lance Taylor  <iant@golang.org>

        * config/i386/i386.c (ix86_expand_split_stack_prologue): Add
        REG_ARGS_SIZE note to 32-bit push insns and call insn.

2017-01-31  David Malcolm  <dmalcolm@redhat.com>

        PR preprocessor/79210
        * input.c (get_substring_ranges_for_loc): Replace line_width
        assertion with error-handling.

2017-01-31  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77318
        * graphite-sese-to-poly.c (extract_affine): Fix assert.
        (create_pw_aff_from_tree): Take loop parameter.
        (add_condition_to_pbb): Pass loop of the condition to
        create_pw_aff_from_tree.

2017-01-31  Jakub Jelinek  <jakub@redhat.com>

        * config/s390/s390.c (s390_asan_shadow_offset): New function.
        (TARGET_ASAN_SHADOW_OFFSET): Redefine.

2017-01-31  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/78597
        PR target/79038
        * config/rs6000/rs6000-protos.h (convert_float128_to_int): Delete,
        no longer used.
        (convert_int_to_float128): Likewise.
        * config/rs6000/rs6000.c (convert_float128_to_int): Likewise.
        (convert_int_to_float128): Likewise.
        * config/rs6000/rs6000.md (UNSPEC_IEEE128_MOVE): Likewise.
        (UNSPEC_IEEE128_CONVERT): Likewise.
        (floatsi<mode>2, FLOAT128 iterator): Bypass calling
        rs6000_expand_float128_convert if we have IEEE 128-bit hardware.
        Use local variables for IBM extended format.
        (fix_trunc<mode>si2, FLOAT128 iterator): Likewise.
        (fix_trunc<mode>si2_fprs): Likewise.
        (fixuns_trunc<IEEE128:mode><SDI:mode>2): Likewise.
        (floatuns<IEEE128:mode>2, IEEE128 iterator): Likewise.
        (fix<uns>_<mode>si2_hw): Rework the IEEE 128-bt hardware support
        to know that we can now have integers of all sizes in vector
        registers.
        (fix<uns>_<mode>di2_hw): Likewise.
        (float<uns>_<mode>si2_hw): Likewise.
        (fix_<mode>si2_hw): Likewise.
        (fixuns_<mode>si2_hw): Likewise.
        (float<uns>_<mode>di2_hw): Likewise.
        (float_<mode>di2_hw): Likewise.
        (float_<mode>si2_hw): Likewise.
        (floatuns_<mode>di2_hw): Likewise.
        (floatuns_<mode>si2_hw): Likewise.
        (xscvqp<su>wz_<mode>): Delete, no longer used.
        (xscvqp<su>dz_<mode>): Likewise.
        (xscv<su>dqp_<mode>): Likewise.
        (ieee128_mfvsrd_64bit): Likewise.
        (ieee128_mfvsrd_32bit): Likewise.
        (ieee128_mfvsrwz): Likewise.
        (ieee128_mtvsrw): Likewise.
        (ieee128_mtvsrd_64bit): Likewise.
        (ieee128_mtvsrd_32bit): Likewise.

2017-01-31  Martin Liska  <mliska@suse.cz>

        PR ipa/79285
        * ipa-prop.c (ipa_free_all_node_params): Call release method
        instead of ~sumbol_summary to not to trigger double times
        dtor of hash_map.

2017-01-31  Aldy Hernandez  <aldyh@redhat.com>

        PR tree-optimization/71691
        * bitmap.h (class auto_bitmap): New.
        * tree-ssa-loop-unswitch.c (tree_may_unswitch_on): Call
        is_maybe_undefined instead of ssa_undefined_value_p.

2017-01-31  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390-c.c (s390_cpu_cpp_builtins_internal): Rename
        __S390_ARCH_LEVEL__ to __ARCH__.

2017-01-31  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/79267
        * value-prof.c (gimple_ic): Only drop lhs for noreturn calls
        if should_remove_lhs_p is true.

2017-01-30  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/63238
        * dwarf2out.c (clone_as_declaration): Drop DW_AT_alignment.
        (add_alignment_attribute): New.
        (base_type_die): Add alignment attribute.
        (subrange_type_die): Likewise.
        (modified_type_die): Likewise.
        (gen_array_type_die): Likewise.
        (gen_descr_array_type_die: Likewise.
        (gen_enumeration_type_die): Likewise.
        (gen_subprogram_die): Likewise.
        (gen_variable_die): Likewise.
        (gen_field_die): Likewise.
        (gen_ptr_to_mbr_type_die): Likewise.
        (gen_struct_or_union_type_die): Likewise.
        (gen_subroutine_type_die): Likewise.
        (gen_typedef_die): Likewise.
        (base_type_cmp): Compare alignment attribute.

2017-01-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        PR target/79170
        * config/rs6000/altivec.md (*setb_internal): Rename to setb_signed.
        (setb_unsigned) New pattern for setb with CCUNS.
        * config/rs6000/rs6000.c (expand_block_compare): Use a different
        subfc./subfe sequence to avoid overflow problems.  Generate a
        shorter sequence with cmpld/setb for power9.
        * config/rs6000/rs6000.md (subf<mode>3_carry_dot2): Add a new pattern
        for generating subfc. instruction.
        (cmpstrsi): Add TARGET_POPCNTD predicate as the generate sequence
        now uses this instruction.

2017-01-30  Ian Lance Taylor  <iant@google.com>

        PR debug/79289
        * dwarf2out.c (gen_type_die_with_usage): When picking a variant
        for FUNCTION_TYPE/METHOD_TYPE, use the first matching one.

2017-01-30  Martin Sebor  <msebor@redhat.com>

        * gimple-ssa-sprintf.c (fmtresult::adjust_for_width_or_precision):
        Move constant to the right of a relational operator.
        (get_mpfr_format_length, format_character, format_string): Ditto.
        (should_warn_p, maybe_warn): Same.

        * doc/invoke.texi (-Wformat-truncation=1): Fix typo.

2017-01-30  Maxim Ostapenko  <m.ostapenko@samsung.com>

        PR lto/79061
        * asan.c (get_translation_unit_decl): Remove function.
        (asan_add_global): Force has_dynamic_init to zero in LTO mode.

2017-01-30  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/79259
        * opts.c (common_handle_option): Enable flag_ipa_bit_cp w/
        -fprofile-generate.

2017-01-30  Martin Liska  <mliska@suse.cz>

        PR bootstrap/78985
        * config/aarch64/cortex-a57-fma-steering.c (func_fma_steering::analyze):
        Initialize variables with NULL value.

2017-01-30  Richard Earnshaw  <rearnsh@arm.com>

        PR target/79260
        * config.gcc (arm*-*-*): Add arm/arm-flags.h and arm/arm-isa.h to
        tm_p_file.
        * arm/arm-protos.h: Don't directly include arm-flags.h and arm-isa.h.

2017-01-30  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79276
        * tree-vrp.c (process_assert_insertions): Properly adjust common
        when removing a duplicate.

2017-01-30  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79256
        * targhooks.c (default_builtin_vector_alignment_reachable): Honor
        BIGGEST_FIELD_ALIGNMENT and ADJUST_FIELD_ALIGN to fix up bogus
        alignment on TYPE.
        * tree.c (build_aligned_type): Set TYPE_USER_ALIGN.

2017-01-30  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        PR target/79240
        * config/s390/s390.md ("*r<noxa>sbg_<mode>_srl_bitmask")
        ("*r<noxa>sbg_<mode>_sll_bitmask")
        ("*extzv_<mode>_srl<clobbercc_or_nocc>")
        ("*extzv_<mode>_sll<clobbercc_or_nocc>"):
        Use contiguous_bitmask_nowrap_operand.

2017-01-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/79268
        * config/rs6000/altivec.h (vec_xl): Revise #define.
        (vec_xst): Likewise.

2017-01-27  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (print_reg): Use REGNO instead of true_regnum.

2017-01-27  Bernd Schmidt  <bschmidt@redhat.com>

        PR rtl-optimization/79194
        * cprop.c (one_cprop_pass): Move deletion of code after unconditional
        traps before call to bypass_conditional_jumps.

2017-01-27  Vladimir Makarov  <vmakarov@redhat.com>

        PR tree-optimization/71374
        * lra-constraints.c (check_conflict_input_operands): New.
        (match_reload): Use it.

2017-01-27  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/79131
        * lra-assigns.c (find_hard_regno_for_1): Take endianess for into
        account to calculate conflict_set.

2017-01-27  Bin Cheng  <bin.cheng@arm.com>

        PR rtl-optimization/78559
        * combine.c (try_combine): Discard REG_EQUAL and REG_EQUIV for
        other_insn in combine.

2017-01-27  Pekka Jääskeläinen  <pekka.jaaskelainen@parmance.com>

        * builtin-types.def: Use unsigned_char_type_node for BT_UINT8.  Use
        uint16_type_node for BT_UINT16.

2017-01-27  David Malcolm  <dmalcolm@redhat.com>

        * doc/sourcebuild.texi (Testsuites): Add "GIMPLE Tests" and
        "RTL Tests" to menu.
        (GIMPLE Tests): New node.
        (RTL Tests): New node.

2017-01-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79245
        * tree-loop-distribution.c (distribute_loop): Apply cost
        modeling also to detected patterns.

2017-01-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71433
        * tree-vrp.c (register_new_assert_for): Revert earlier changes.
        (compare_assert_loc): New function.
        (process_assert_insertions): Sort and optimize assert locations
        to remove duplicates and push down identical assertions on
        edges to their destination block.

2017-01-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79244
        * tree-vrp.c (remove_range_assertions): Forcefully propagate
        out SSA names even if abnormal.

2017-01-27  Jakub Jelinek  <jakub@redhat.com>

        * realmpfr.h: Poison MPFR_RND{N,Z,U,D}.
        * gimple-ssa-sprintf.c (format_floating_max): Use GMP_RNDN
        instead of MPFR_RNDN.

2017-01-27  Richard Earnshaw  <rearnsha@arm.com>

        PR target/79239
        * arm.c (arm_option_override): Don't call build_target_option_node
        until after doing all option overrides.
        (arm_valid_target_attribute_tree): Likewise.

2017-01-27  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi (-fprofile-arcs): Document profiling support
        for {cd}tors and C++ {cd}tors.

2017-01-27  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/s390.md ("*setmem_long_and")
        ("*setmem_long_and_31z"): Use zero_extend instead of and.

2017-01-26  Martin Sebor  <msebor@redhat.com>

        * gimple-ssa-sprintf.c (format_floating): Simplify the computation
        of precision.

2017-01-26  Martin Sebor  <msebor@redhat.com>

        * gimple-ssa-sprintf.c (format_floating): Test HAVE_XFmode and
        HAVE_DFmode before using XFmode or DFmode.
        (parse_directive): Avoid using the z length modifier to avoid
        the ISO C++98 does not support the ‘z’ gnu_printf length modifier.

        PR middle-end/78703
        * gimple-ssa-sprintf.c (adjust_for_width_or_precision): Change
        to accept adjustment as an array.
        (get_int_range): New function.
        (struct directive): Make width and prec arrays.
        (directive::set_width, directive::set_precision): Call get_int_range.
        (format_integer, format_floating): Handle width and precision ranges.
        (format_string, parse_directive): Same.

2017-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR debug/79129
        * dwarf2out.c (generate_skeleton_bottom_up): For children with
        comdat_type_p set, just clone them, but keep the children in the
        original DIE.

        PR debug/78835
        * dwarf2out.c (prune_unused_types): Mark all functions with DIEs
        which have direct callers with -fvar-tracking-assignments enabled
        in the current TU.
        (resolve_addr): Avoid adding skeleton DIEs for DW_AT_call_origin
        inside of type units.

2017-01-26  Martin Sebor  <msebor@redhat.com>

        PR middle-end/78703
        * gimple-ssa-sprintf.c (struct result_range): Add likely and
        unlikely counters.
        (struct format_result): Replace number_chars, number_chars_min,
        and number_chars_max with a single member of struct result_range.
        Remove bounded.
        (format_result::operator+=): Adjust.
        (struct fmtresult): Remove bounded.  Handle likely and unlikely
        counters.
        (fmtresult::adjust_for_width_or_precision): New function.
        (fmtresult:type_max_digits): New function.
        (bytes_remaining): Handle likely and unlikely counters.
        (min_bytes_remaining): Remove.
        (format_percent): Simplify.
        (format_integer, format_floating): Set likely and unlikely counters.
        (get_string_length, format_character, format_string): Same.
        (format_plain, should_warn_p): New function.
        (maybe_warn): Call should_warn_p.  Update diagnostic messages
        and handle those for all directives, including plain strings.
        (format_directive): Handle likely and unlikely counters.
        Remove unnecessary quoting from diagnostics.  Add an informational
        note.
        (add_bytes): Remove.
        (pass_sprintf_length::compute_format_length): Simplify.
        (try_substitute_return_value): Handle likely and unlikely counters.

2017-01-26  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c (altivec_overloaded_builtins): Remove
        bogus entries for the P8V_BUILTIN_VEC_VGBBD built-ins

2017-01-26  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/79131
        * lra-assigns.c (setup_live_pseudos_and_spill_after_risky): Take
        endianess for subregs into account.
        * lra-constraints.c (lra_constraints): Do risky transformations
        always on the first iteration.
        * lra-lives.c (check_pseudos_live_through_calls): Add arg
        last_call_used_reg_set.
        (process_bb_lives): Define and use last_call_used_reg_set.
        * lra.c (lra): Always continue after lra_constraints on the first
        iteration.

2017-01-26  Kirill Yukhin  <kirill.yukhin@gmail.com>

        * gcc.target/i386/avx512bw-kshiftlq-2.c: Use unsigned long long
        constant.
        * gcc.target/i386/avx512bw-kshiftrq-2.c: Ditto.

2017-01-26  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/avx512fintrin.h (_ktest_mask16_u8,
        _ktestz_mask16_u8, _ktestc_mask16_u8, _kadd_mask16): Move to ...
        * config/i386/avx512dqintrin.h (_ktest_mask16_u8,
        _ktestz_mask16_u8, _ktestc_mask16_u8, _kadd_mask16): ... here.
        * config/i386/i386-builtin.def (__builtin_ia32_ktestchi,
        __builtin_ia32_ktestzhi, __builtin_ia32_kaddhi): Use
        OPTION_MASK_ISA_AVX512DQ instead of OPTION_MASK_ISA_AVX512F.
        * config/i386/sse.md (SWI1248_AVX512BWDQ2): New mode iterator.
        (kadd<mode>, ktest<mode>): Use it instead of SWI1248_AVX512BWDQ.

2017-01-26  Marek Polacek  <polacek@redhat.com>

        PR c/79199
        * fold-const.c (operand_equal_p) [COND_EXPR]: Use OP_SAME_WITH_NULL
        for the third operand.

2017-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/79236
        * omp-low.c (struct omp_context): Add simt_stmt field.
        (scan_omp_for): Return omp_context *.
        (scan_omp_simd): Set simt_stmt on the non-_simt_ SIMD
        context to the _simt_ SIMD stmt.
        (lower_omp_for): For combined SIMD with sibling _simt_
        SIMD, make sure to use the same decls in _looptemp_
        clauses as in the sibling.

2017-01-26  David Sherwood  <david.sherwood@arm.com>

        PR middle-end/79212
        * gimplify.c (omp_notice_variable): Add GOVD_SEEN flag to variables in
        all contexts.

2017-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR target/70465
        * reg-stack.c (emit_swap_insn): Instead of fld a; fld b; fxchg %st(1);
        emit fld b; fld a; if possible.

        * brig-builtins.def: Update copyright years.
        * config/arm/arm_acle_builtins.def: Update copyright years.

2017-01-25  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/79179
        * config/rs6000/vsx.md (vsx_extract_<mode>_store): Use wY
        constraint instead of o for the stxsd instruction.

2017-01-25  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c (altivec_overloaded_builtins): Fix order
        of entries for ALTIVEC_BUILTIN_VEC_PACKS and P8V_BUILTIN_VEC_VGBBD.

2017-01-25  Jonathan Wakely  <jwakely@redhat.com>

        * doc/invoke.texi (C++ Dialect Options): Fix typo.

2017-01-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69264
        * target.def (vector_alignment_reachable): Improve documentation.
        * doc/tm.texi: Regenerate.
        * targhooks.c (default_builtin_vector_alignment_reachable): Simplify
        and add a comment.
        * tree-vect-data-refs.c (vect_supportable_dr_alignment): Revert
        earlier changes with respect to TYPE_USER_ALIGN.
        (vector_alignment_reachable_p): Likewise.  Improve dumping.

2016-01-25  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/79145
        * config/arm/arm.md (xordi3): Force constant operand into a register
        for TARGET_IWMMXT.

2016-01-25  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * doc/invoke.texi (-fstore-merging): Correct default optimization
        levels at which it is enabled.
        (-O): Move -fstore-merging from list to...
        (-O2): ... Here.

2017-01-25  Richard Biener  <rguenther@suse.de>

        PR debug/78363
        * omp-expand.c: Include debug.h.
        (expand_omp_taskreg): Make sure to generate early debug before
        outlining anything from a function.
        (expand_omp_target): Likewise.
        (grid_expand_target_grid_body): Likewise.

2017-01-25  Maxim Ostapenko  <m.ostapenko@samsung.com>

        PR lto/79061
        * asan.c (get_translation_unit_decl): New function.
        (asan_add_global): Extract modules file name from globals
        TRANSLATION_UNIT_DECL name.

2017-01-24  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/77439
        * config/arm/arm.c (arm_function_ok_for_sibcall): Add back restriction
        for long calls with APCS frame and VFP.

2017-01-24  David Malcolm  <dmalcolm@redhat.com>

        * cfg.c (original_copy_tables_initialized_p): New function.
        * cfg.h (original_copy_tables_initialized_p): New decl.
        * cfgrtl.c (relink_block_chain): Guard the call to
        free_original_copy_tables with a call to
        original_copy_tables_initialized_p.
        * cgraph.h (symtab_node::native_rtl_p): New decl.
        * cgraphunit.c (symtab_node::native_rtl_p): New function.
        (symtab_node::needed_p): Don't assert for early assembly output
        for __RTL functions.
        (cgraph_node::finalize_function): Set "force_output" for __RTL
        functions.
        (cgraph_node::analyze): Bail out early for __RTL functions.
        (analyze_functions): Update assertion to support __RTL functions.
        (cgraph_node::expand): Bail out early for __RTL functions.
        * final.c (rest_of_clean_state): Don't call delete_tree_ssa for
        __RTL functions.
        * function.h (struct function): Update comment for field
        "pass_startwith".
        * gimple-expr.c: Include "tree-pass.h".
        (gimple_has_body_p): Return false for __RTL functions.
        * Makefile.in (OBJS): Add run-rtl-passes.o.
        * pass_manager.h (gcc::pass_manager::get_rest_of_compilation): New
        accessor.
        (gcc::pass_manager::get_clean_slate): New accessor.
        * passes.c: Include "insn-addr.h".
        (should_skip_pass_p): Add logging.  Update logic for running
        "expand" to be compatible with both __GIMPLE and __RTL.  Guard
        property-provider override so it is only done for gimple passes.
        Don't skip dfinit.
        (skip_pass): New function.
        (execute_one_pass): Call skip_pass when skipping passes.
        * read-md.c (md_reader::read_char): Support filtering
        the input to a subset of line numbers.
        (md_reader::md_reader): Initialize fields
        m_first_line and m_last_line.
        (md_reader::read_file_fragment): New function.
        * read-md.h (md_reader::read_file_fragment): New decl.
        (md_reader::m_first_line): New field.
        (md_reader::m_last_line): New field.
        * read-rtl-function.c (function_reader::create_function): Only
        create cfun if it doesn't already exist.  Set PROP_rtl on cfun's
        curr_properties.  Set DECL_INITIAL to a dummy block.
        (read_rtl_function_body_from_file_range): New function.
        * read-rtl-function.h (read_rtl_function_body_from_file_range):
        New decl.
        * run-rtl-passes.c: New file.
        * run-rtl-passes.h: New file.

2017-01-24  Jeff Law  <law@redhat.com>

        * config/microblaze/microblaze.h (ASM_FORMAT_PRIVATE_NAME): Increase
        buffer size.

2017-01-24  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/79159
        * tree-ssa-loop-niter.c (get_cst_init_from_scev): New function.
        (record_nonwrapping_iv): Improve boundary using above function if no
        value range information.

2017-01-24  Pekka Jääskeläinen  <pekka@parmance.com>
            Martin Jambor  <mjambor@suse.cz>

        * brig-builtins.def: New file.
        * builtins.def (DEF_HSAIL_BUILTIN): New macro.
        (DEF_HSAIL_ATOMIC_BUILTIN): Likewise.
        (DEF_HSAIL_SAT_BUILTIN): Likewise.
        (DEF_HSAIL_INTR_BUILTIN): Likewise.
        (DEF_HSAIL_CVT_ZEROI_SAT_BUILTIN): Likewise.
        * builtin-types.def (BT_INT8): New.
        (BT_INT16): Likewise.
        (BT_UINT8): Likewise.
        (BT_UINT16): Likewise.
        (BT_FN_ULONG): Likewise.
        (BT_FN_UINT_INT): Likewise.
        (BT_FN_UINT_ULONG): Likewise.
        (BT_FN_UINT_LONG): Likewise.
        (BT_FN_UINT_PTR): Likewise.
        (BT_FN_ULONG_PTR): Likewise.
        (BT_FN_INT8_FLOAT): Likewise.
        (BT_FN_INT16_FLOAT): Likewise.
        (BT_FN_UINT32_FLOAT): Likewise.
        (BT_FN_UINT16_FLOAT): Likewise.
        (BT_FN_UINT8_FLOAT): Likewise.
        (BT_FN_UINT64_FLOAT): Likewise.
        (BT_FN_UINT16_UINT32): Likewise.
        (BT_FN_UINT32_UINT16): Likewise.
        (BT_FN_UINT16_UINT16_UINT16): Likewise.
        (BT_FN_INT_PTR_INT): Likewise.
        (BT_FN_UINT_PTR_UINT): Likewise.
        (BT_FN_LONG_PTR_LONG): Likewise.
        (BT_FN_ULONG_PTR_ULONG): Likewise.
        (BT_FN_VOID_UINT64_UINT64): Likewise.
        (BT_FN_UINT8_UINT8_UINT8): Likewise.
        (BT_FN_INT8_INT8_INT8): Likewise.
        (BT_FN_INT16_INT16_INT16): Likewise.
        (BT_FN_INT_INT_INT): Likewise.
        (BT_FN_UINT_FLOAT_UINT): Likewise.
        (BT_FN_FLOAT_UINT_UINT): Likewise.
        (BT_FN_ULONG_UINT_UINT): Likewise.
        (BT_FN_ULONG_UINT_PTR): Likewise.
        (BT_FN_ULONG_ULONG_ULONG): Likewise.
        (BT_FN_UINT_UINT_UINT): Likewise.
        (BT_FN_VOID_UINT_PTR): Likewise.
        (BT_FN_UINT_UINT_PTR: Likewise.
        (BT_FN_UINT32_UINT64_PTR): Likewise.
        (BT_FN_INT_INT_UINT_UINT): Likewise.
        (BT_FN_UINT_UINT_UINT_UINT): Likewise.
        (BT_FN_UINT_UINT_UINT_PTR): Likewise.
        (BT_FN_UINT_ULONG_ULONG_UINT): Likewise.
        (BT_FN_ULONG_ULONG_ULONG_ULONG): Likewise.
        (BT_FN_LONG_LONG_UINT_UINT): Likewise.
        (BT_FN_ULONG_ULONG_UINT_UINT): Likewise.
        (BT_FN_VOID_UINT32_UINT64_PTR): Likewise.
        (BT_FN_VOID_UINT32_UINT32_PTR): Likewise.
        (BT_FN_UINT_UINT_UINT_UINT_UINT): Likewise.
        (BT_FN_UINT_FLOAT_FLOAT_FLOAT_FLOAT): Likewise.
        (BT_FN_ULONG_ULONG_ULONG_UINT_UINT): Likewise.
        * doc/frontends.texi: List BRIG FE.
        * doc/install.texi (Testing): Add BRIG tesring requirements.
        * doc/invoke.texi (Overall Options): Mention BRIG.
        * doc/standards.texi (Standards): Doucment BRIG HSA version.

2017-01-24  Richard Biener  <rguenther@suse.de>

        PR translation/79208
        * ipa-devirt.c (odr_types_equivalent_p): Fix typo in diagnostic.

2017-01-24  Martin Jambor  <mjambor@suse.cz>

        PR bootstrap/79198
        * ipa-prop.c (ipa_free_all_node_params): Call summary destructor.
        * ipa-prop.c (ipa_node_params_t::insert): Initialize fields known_csts
        and known_contexts.

2017-01-24  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/79123
        * gimple-ssa-warn-alloca.c (alloca_call_type): Make sure
        casts from signed to unsigned really don't have a range.

2017-01-24  Markus Trippelsdorf  <markus@trippelsdorf.de>

        * gimple-ssa-sprintf.c (format_floating): Change MPFR_RNDx to
        GMP_RNDx for compatiblity.

2017-01-24  Martin Liska  <mliska@suse.cz>

        PR bootstrap/79132
        * tree-ssa-reassoc.c (rewrite_expr_tree_parallel): Insert assert
        that would prevent us to call alloca with -1 as argument.

2017-01-24  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (output_compilation_unit_header, output_file_names):
        Avoid -Wformat-security warning.

2017-01-23  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64.c (thunderx2t99_addrcost_table): Improve
        cost table.

2017-01-23  Martin Sebor  <msebor@redhat.com>

        PR middle-end/78703
        * gimple-ssa-sprintf.c (warn_level): New global.
        (format_integer): Use it here and throughout the rest of the file.
        Use the same switch to compute sign as base.
        (maybe_warn): New function.
        (format_directive): Factor out warnings into maybe_warn.
        Add debugging output.  Use warn_level.
        (add_bytes): Use warn_level.
        (pass_sprintf_length::compute_format_length): Add debugging output.
        (try_substitute_return_value): Same.
        (pass_sprintf_length::handle_gimple_call): Set and use warn_level.

        PR middle-end/78703
        * gimple-ssa-sprintf.c (struct format_result): Remove constant member.
        (struct fmtresult, format_integer, format_floating): Adjust.
        (fmtresult::fmtresult): Set max correctly in two argument ctor.
        (get_string_length, format_string,format_directive): Same.
        (pass_sprintf_length::compute_format_length): Same.
        (try_substitute_return_value): Simplify slightly.

        PR middle-end/78703
        * gimple-ssa-sprintf.c (pass_sprintf_length::gate): Adjust formatting.
        (fmtresult::operator+=): Outlined.
        (struct fmtresult): Add ctors.
        (struct conversion_spec): Rename...
        (struct directive): ...to this.  Add and remove data members.
        (directive::set_width, directive::set_precision): New functions.
        (format_percent): Use fmtresult ctor.
        (get_width_and_precision): Remove.
        (format_integer): Make naming changes.  Avoid computing width and
        precision.
        (format_floating): Same.  Adjust indentation.
        (format_character, format_none): New functions.
        (format_string): Moved character handling to format_character.
        (format_directive): Remove arguments, change return type.
        (parse_directive): New function.
        (pass_sprintf_length::compute_format_length): Move directive
        parsing to parse_directive.

2017-01-23  Jakub Jelinek  <jakub@redhat.com>

        * tree.h (assign_assembler_name_if_neeeded): Rename to ...
        (assign_assembler_name_if_needed): ... this.
        * tree.c (assign_assembler_name_if_neeeded): Rename to ...
        (assign_assembler_name_if_needed): ... this.
        (free_lang_data_in_cgraph): Adjust callers.
        * cgraphunit.c (cgraph_node::analyze): Likewise.
        * omp-expand.c (expand_omp_taskreg, expand_omp_target):
        Likewise.

2017-01-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79088
        PR tree-optimization/79188
        * tree-ssa-threadupdate.c (mark_threaded_blocks): Move code
        resetting loop bounds after last path deletion.  Reset loop
        bounds of the target loop, make code match the comments.
        * tree-ssa-threadbackwards.c (pass_early_thread_jumps::execute):
        Make sure loops need no fixups.

2017-01-23  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/rs6000-builtin.def (VSIEDPF): Add scalar insert
        exponent support with double type for first argument.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Changed
        type returned by __builtin_vec_extract_sig,
        __builtin_vec_extract_sig_sp, and __builtin_vec_extract_sig_dp
        functions from "vector int" to "vector unsigned int" or from
        "vector long long int" to "vector unsigned long long int".
        Changed type returned by __builtin_vec_extract_exp,
        __builtin_vec_extract_exp_sp, and __builtin_vec_extract_exp_dp
        functions from "vector int" to "vector unsigned int" or from
        "vector long long int" to "vector unsigned long long int".
        Changed return type of __builtin_vec_test_data_class,
        __builtin_vec_test_data_class_sp, and
        __builtin_vec_test_data_class_dp from "vector int" to
        "vector bool int" or from "vector long long int" to "vector bool
        long long int" and changed second argument type from "unsigned
        int" to "int".  Added new overloaded function forms "vector float
        __builtin_vec_insert_exp (vector float, vector unsigned int)" and
        "vector float __builtin_vec_insert_exp_sp (vector float, vector
        unsigned int)" and "vector double __builtin_vec_insert_exp (vector
        double, vector unsigned long long int)" and "vector double
        __builtin_vec_insert_exp_dp (vector double, vector unsigned long
        long int)".  Changed return type of
        __builtin_scalar_test_data_class and
        __builtin_scalar_test_data_class_sp and
        __builtin_scalar_test_data_class_dp from "unsigned int" to "bool
        int" and changed second argument from "unsigned int" to "int".
        Changed type returned by __builtin_scalar_test_neg,
        __builtin_scalar_test_neg_sp, and __builtin_scalar_test_neg_dp
        from "int" to "bool int".  Added new overloaded function form
        "double __builtin_scalar_insert_exp (double, unsigned long long int)".
        * config/rs6000/vsx.md (xsiexpdpf): New insn for scalar insert
        exponent double-precision with floating point first argument.
        * doc/extend.texi (PowerPC AltiVec Built-in Functions): Adjust
        documentation of scalar_test_data_class, scalar_test_neg,
        scalar_extract_sig, scalar_extract_exp, scalar_insert_exp,
        vector_extract_exp, vec_extract_sig, vec_insert_exp, and
        vec_test_data_class built-in functions to reflect refinements in
        their type signatures.

2017-01-23  Andreas Tobler  <andreast@gcc.gnu.org>

        * config/aarch64/aarch64.c (aarch64_elf_asm_constructor): Increase
        size of buf.
        (aarch64_elf_asm_destructor): Likewise.

2017-01-23  Bernd Schmidt  <bschmidt@redhat.com>

        PR rtl-optimization/78634
        * config/i386/i386.c (ix86_max_noce_ifcvt_seq_cost): New function.
        (TARGET_MAX_NOCE_IFCVT_SEQ_COST): Define.
        * ifcvt.c (noce_try_cmove): Add missing cost check.

        PR rtl-optimization/71724
        * combine.c (if_then_else_cond): Look for situations where it is
        beneficial to undo the work of one of the recursive calls.

2017-01-23  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/70754
        * tree-predcom.c (stmt_combining_refs): New parameter INSERT_BEFORE.
        (reassociate_to_the_same_stmt): New parameter INSERT_BEFORE.  Insert
        combined stmt before it if not NULL.
        (combine_chains): Process refs reversely and compute dominance point
        for root ref.

2017-01-23  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/79196
        * tree-ssa-strlen.c (fold_strstr_to_memcmp): Rename to ...
        (fold_strstr_to_strncmp): ... this.  Fold the pattern to strncmp
        instead of memcmp.
        (strlen_optimize_stmt): Call the renamed function.

2017-01-23  Michael Matz  <matz@suse.de>

        PR tree-optimization/78384
        * tree-ssa-loop-split.c (patch_loop_exit): Use correct edge.

2017-01-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79186
        * tree-vrp.c (register_new_assert_for): Make sure we've seen
        both incoming edges before moving an assert.

2017-01-23  Martin Jambor  <mjambor@suse.cz>

        * ipa-prop.c (load_from_param_1): Removed.
        (load_from_unmodified_param): Bits from load_from_param_1 put back
        here.
        (load_from_param): Removed.
        (compute_complex_assign_jump_func): Removed stmt2 and just replaced it
        with stmt.  Reverted back to use of load_from_unmodified_param.

2017-01-23  Martin Jambor  <mjambor@suse.cz>

        PR ipa/79108
        * ipa-prop.h (ipa_param_descriptor): Anotate with with GTY(()).
        (ipa_node_params): Annotate with GTY((for_user)).  Make descriptors
        field a pointer to garbage collected vector, mark lattices and
        ipcp_orig_node with GTY((skip)).
        (ipa_get_param_count): Adjust to descriptors being a pointer.
        (ipa_get_param): Likewise.
        (ipa_get_type): Likewise.
        (ipa_get_param_move_cost): Likewise.
        (ipa_set_param_used): Likewise.
        (ipa_get_controlled_uses): Likewise.
        (ipa_set_controlled_uses): Likewise.
        (ipa_is_param_used): Likewise.
        (ipa_node_params_t): Move into garbage collector.  New methods insert
        and remove.
        (ipa_node_params_sum): Annotate wth GTY(()).
        (ipa_check_create_node_params): Adjust to ipa_node_params_sum being
        garbage collected.
        (ipa_load_from_parm_agg): Adjust declaration.
        * ipa-icf.c (param_used_p): Adjust to descriptors being a pointer.
        * ipa-profile.c (ipa_profile): Likewise.
        * ipa-prop.c (ipa_get_param_decl_index_1): Likewise.
        (ipa_populate_param_decls): Make descriptors parameter garbage
        collected.
        (ipa_dump_param): Adjust to descriptors being a pointer.
        (ipa_alloc_node_params): Likewise.
        (ipa_initialize_node_params): Likewise.
        (load_from_param_1): Make descriptors parameter garbage collected.
        (load_from_unmodified_param): Likewise.
        (load_from_param): Likewise.
        (ipa_load_from_parm_agg): Likewise.
        (ipa_node_params::~ipa_node_params): Removed.
        (ipa_free_all_node_params): Remove call to delete operator.
        (ipa_node_params_t::insert): New.
        (ipa_node_params_t::remove): Likewise.
        (ipa_node_params_t::duplicate): Adjust to descriptors being a pointer,
        copy known_csts and known_contexts vectors.
        (ipa_read_node_info): Adjust to descriptors being a pointer.
        (ipcp_modif_dom_walker): Make m_descriptors field garbage
        collected.
        (ipcp_transform_function): Make descriptors variable garbage
        collected.

2017-01-23  Andrew Senkevich  <andrew.senkevich@intel.com>

        * config/i386/avx512bwintrin.h: Add k-mask test, kortest intrinsics.
        * config/i386/avx512dqintrin.h: Ditto.
        * config/i386/avx512fintrin.h: Ditto.
        * config/i386/i386.c: Handle new builtins.
        * config/i386/i386-builtin.def: Add new builtins.
        * config/i386/sse.md (ktest<mode>, kortest<mode>): New.
        (UNSPEC_KORTEST, UNSPEC_KTEST): New.

2017-01-23  Jakub Jelinek  <jakub@redhat.com>
            Martin Liska  <mliska@suse.cz>

        * asan.h: Define ASAN_USE_AFTER_SCOPE_ATTRIBUTE.
        * asan.c (asan_expand_poison_ifn): Support stores and use
        appropriate ASAN report function.
        * internal-fn.c (expand_ASAN_POISON_USE): New function.
        * internal-fn.def (ASAN_POISON_USE): Declare.
        * tree-into-ssa.c (maybe_add_asan_poison_write): New function.
        (maybe_register_def): Create ASAN_POISON_USE when sanitizing.
        * tree-ssa-dce.c (eliminate_unnecessary_stmts): Remove
        ASAN_POISON calls w/o LHS.
        * tree-ssa.c (execute_update_addresses_taken): Create clobber
        for ASAN_MARK (UNPOISON, &x, ...) in order to prevent usage of a LHS
        from ASAN_MARK (POISON, &x, ...) coming to a PHI node.
        * gimplify.c (asan_poison_variables): Add attribute
        use_after_scope_memory to variables that really needs to live
        in memory.
        * tree-ssa.c (is_asan_mark_p): Do not rewrite into SSA when
        having the attribute.

2017-01-23  Martin Liska  <mliska@suse.cz>

        * asan.c (create_asan_shadow_var): New function.
        (asan_expand_poison_ifn): Likewise.
        * asan.h (asan_expand_poison_ifn): New declaration.
        * internal-fn.c (expand_ASAN_POISON): Likewise.
        * internal-fn.def (ASAN_POISON): New builtin.
        * sanopt.c (pass_sanopt::execute): Expand
        asan_expand_poison_ifn.
        * tree-inline.c (copy_decl_for_dup_finish): Make function
        external.
        * tree-inline.h (copy_decl_for_dup_finish): Likewise.
        * tree-ssa.c (is_asan_mark_p): New function.
        (execute_update_addresses_taken): Rewrite local variables
        (identified just by use-after-scope as addressable) into SSA.

2017-01-22  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Specific): opensource.apple.com uses https
        now. Remove trailing slash.

2017-01-22  Gerald Pfeifer  <gerald@pfeifer.com>

        * README.Portability: Remove note on an Irix compatibility issue.

2017-01-22  Dimitry Andric <dim@FreeBSD.org>

        * gcov.c (INCLUDE_ALGORITHM): Define.
        (INCLUDE_VECTOR): Define.
        No longer include <vector> and <algorithm> directly.

2017-01-21  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/extend.texi (Thread-Local): Change www.akkadia.org reference
        to https.
        * doc/invoke.texi (Code Gen Options): Ditto.

2017-01-21  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/78407
        * cfg.c (update_bb_profile_for_threading): Fix updating of probablity.

2017-01-21  Bernd Schmidt  <bschmidt@redhat.com>

        rtl-optimization/79125
        * cprop.c (local_cprop_pass): Handle cases where we make an
        unconditional trap.

2017-01-20  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/61729
        PR target/77850
        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Adjust address to
        read from, for big endian.

2017-01-20  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-builtins.c (aarch64_init_builtins): Register
        register pauth builtins for LP64 only.

2017-01-20  Marek Polacek  <polacek@redhat.com>

        PR c/79152
        * gimplify.c (should_warn_for_implicit_fallthrough): Handle consecutive
        non-case labels.

2017-01-20  Alexander Monakov  <amonakov@ispras.ru>

        * omp-expand.c (expand_omp_simd): Clear PROP_gimple_lomp_dev regardless
        of safelen status.
        * omp-offload.c (pass_omp_device_lower::gate): Use PROP_gimple_lomp_dev.
        * passes.c (dump_properties): Handle PROP_gimple_lomp_dev.
        * tree-inline.c (expand_call_inline): Propagate PROP_gimple_lomp_dev.

2017-01-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/71270
        * config/arm/arm.c (neon_valid_immediate): Reject vector constants
        in big-endian mode when they are not a single duplicated value.

2017-01-20  Richard Biener  <rguenther@suse.de>

        * BASE-VER: Bump to 7.0.1.

2017-01-20  Alexander Monakov  <amonakov@ispras.ru>

        * omp-low.c (omplow_simd_context): New struct.  Use it...
        (lower_rec_simd_input_clauses): ...here and...
        (lower_rec_input_clauses): ...here to hold common data.  Adjust all
        references to idx, lane, max_vf, is_simt.

2017-01-20  Graham Markall  <graham.markall@embecosm.com>

        * config/arc/arc.h (LINK_SPEC): Use arclinux_nps emulation when
        mcpu=nps400.

2017-01-20  Martin Jambor  <mjambor@suse.cz>

        * hsa.h: Renaed to hsa-common.h.  Adjusted a comment.
        * hsa.c: Renaed to hsa-common.c.  Change include of gt-hsa.h to
        gt-hsa-common.h.
        * Makefile.in (OBJS): Rename hsa.o to hsa-common.o.
        (GTFILES): Rename hsa.c to hsa-common.c.
        * hsa-brig.c: Change include of hsa.h to hsa-common.h.
        * hsa-dump.c: Likewise.
        * hsa-gen.c: Likewise.
        * hsa-regalloc.c: Likewise.
        * ipa-hsa.c: Likewise.
        * omp-expand.c: Likewise.
        * omp-low.c: Likewise.
        * toplev.c: Likewise.

2017-01-20  Marek Polacek  <polacek@redhat.com>

        PR c/64279
        * doc/invoke.texi: Document -Wduplicated-branches.
        * fold-const.c (operand_equal_p): Handle MODIFY_EXPR, INIT_EXPR,
        COMPOUND_EXPR, PREDECREMENT_EXPR, PREINCREMENT_EXPR,
        POSTDECREMENT_EXPR, POSTINCREMENT_EXPR, CLEANUP_POINT_EXPR, EXPR_STMT,
        STATEMENT_LIST, and RETURN_EXPR.  For non-pure non-const functions
        return 0 only when not OEP_LEXICOGRAPHIC.
        (fold_build_cleanup_point_expr): Use the expression
        location when building CLEANUP_POINT_EXPR.
        * tree-core.h (enum operand_equal_flag): Add OEP_LEXICOGRAPHIC.
        * tree.c (add_expr): Handle error_mark_node.

2017-01-20  Martin Liska  <mliska@suse.cz>

        PR lto/69188
        * tree-profile.c (init_ic_make_global_vars): Do not call
        finalize_decl.
        (gimple_init_gcov_profiler): Likewise.

2017-01-20  Martin Liska  <mliska@suse.cz>

        PR ipa/71190
        * cgraph.h (maybe_create_reference): Remove argument and
        update comment.
        * cgraphclones.c (cgraph_node::create_virtual_clone): Remove one
        argument.
        * ipa-cp.c (create_specialized_node): Likewise.
        * symtab.c (symtab_node::maybe_create_reference): Handle
        VAR_DECLs and ADDR_EXPRs and select ipa_ref_use type.

2017-01-20  Martin Liska  <mliska@suse.cz>

        * read-rtl-function.c (function_reader::create_function): Use
        build_decl instread of build_decl_stat.

2017-01-20  Andrew Senkevich  <andrew.senkevich@intel.com>

        * config/i386/avx512bwintrin.h: Add k-mask registers shift intrinsics.
        * config/i386/avx512dqintrin.h: Ditto.
        * config/i386/avx512fintrin.h: Ditto.
        * config/i386/i386-builtin-types.def: Add new types.
        * config/i386/i386.c: Handle new types.
        * config/i386/i386-builtin.def (__builtin_ia32_kshiftliqi)
        (__builtin_ia32_kshiftlihi, __builtin_ia32_kshiftlisi)
        (__builtin_ia32_kshiftlidi, __builtin_ia32_kshiftriqi)
        (__builtin_ia32_kshiftrihi, __builtin_ia32_kshiftrisi)
        (__builtin_ia32_kshiftridi): New.
        * config/i386/sse.md (k<code><mode>): Rename *k<code><mode>.

2017-01-19  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/78875
        PR target/79140
        * config/rs6000/rs6000.c (TARGET_STACK_PROTECT_GUARD): Unconditionally
        define to rs6000_init_stack_protect_guard.
        (rs6000_init_stack_protect_guard): New function.

2017-01-19  Matthew Fortune  <matthew.fortune@imgtec.com>
            Yunqiang Su  <yunqiang.su@imgtec.com>

        * config.gcc (supported_defaults): Add madd4.
        (with_madd4): Add validation.
        (all_defaults): Add madd4.
        * config/mips/mips.opt (mmadd4): New option.
        * config/mips/mips.h (OPTION_DEFAULT_SPECS): Add a default for
        mmadd4.
        (TARGET_CPU_CPP_BUILTINS): Add builtin_define for
        __mips_no_madd4.
        (ISA_HAS_UNFUSED_MADD4): Gate with mips_madd4.
        (ISA_HAS_FUSED_MADD4): Likewise.
        * doc/invoke.texi (-mmadd4): Document the new option.
        * doc/install.texi (--with-madd4): Document the new option.

2017-01-19  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-builtins.c (enum aarch64_builtins): New
        entries for AARCH64_PAUTH_BUILTIN_XPACLRI,
        AARCH64_PAUTH_BUILTIN_PACIA1716, AARCH64_PAUTH_BUILTIN_AUTIA1716.
        (aarch64_init_pauth_hint_builtins): New.
        (aarch64_init_builtins): Call aarch64_init_pauth_hint_builtins.
        (aarch64_expand_builtin): Expand new builtins.

2017-01-19  Jiong Wang  <jiong.wang@arm.com>

        * reg-notes.def (CFA_TOGGLE_RA_MANGLE): New reg-note.
        * combine-stack-adj.c (no_unhandled_cfa): Handle
        REG_CFA_TOGGLE_RA_MANGLE.
        * dwarf2cfi.c (dwarf2out_frame_debug): Handle REG_CFA_TOGGLE_RA_MANGLE.
        * config/aarch64/aarch64.c (aarch64_expand_prologue): Generates DWARF
        info for return address signing.
        (aarch64_expand_epilogue): Likewise.

2017-01-19  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-opts.h (aarch64_function_type): New enum.
        * config/aarch64/aarch64-protos.h
        (aarch64_return_address_signing_enabled): New declaration.
        * config/aarch64/aarch64.c (aarch64_return_address_signing_enabled):
        New function.
        (aarch64_expand_prologue): Sign return address before it's pushed onto
        stack.
        (aarch64_expand_epilogue): Authenticate return address fetched from
        stack.
        (aarch64_override_options): Sanity check for ILP32 and ISA level.
        (aarch64_attributes): New function attributes for "sign-return-address".
        * config/aarch64/aarch64.md (UNSPEC_AUTI1716, UNSPEC_AUTISP,
        UNSPEC_PACI1716, UNSPEC_PACISP, UNSPEC_XPACLRI): New unspecs.
        ("*do_return"): Generate combined instructions according to key index.
        ("<pauth_mnem_prefix>sp", "<pauth_mnem_prefix1716", "xpaclri"): New.
        * config/aarch64/iterators.md (PAUTH_LR_SP, PAUTH_17_16): New integer
        iterators.
        (pauth_mnem_prefix, pauth_hint_num_a): New integer attributes.
        * config/aarch64/aarch64.opt (msign-return-address=): New.
        * doc/extend.texi (AArch64 Function Attributes): Documents
        "sign-return-address=".
        * doc/invoke.texi (AArch64 Options): Documents "-msign-return-address=".

2017-01-19  Matthew Fortune  <matthew.fortune@imgtec.com>

        * doc/invoke.texi: Add missing -mlxc1-sxc1 options to
        overall option summary.

2017-01-19  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-arches.def: New entry for "armv8.3-a".
        * config/aarch64/aarch64.h (AARCH64_FL_V8_3, AARCH64_FL_FOR_ARCH8_3,
        AARCH64_ISA_V8_3, TARGET_ARMV8_3): New.
        * doc/invoke.texi (AArch64 Options): Document "armv8.3-a".

2017-01-19  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Enable
        -mpower9-minmax by default for -mcpu=power9.
        (ISA_3_MASKS_IEEE): Require -mvsx-small-integer to enable IEEE
        128-bit floating point.

2017-01-20  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.md (cmpstrnsi, cmpstrsi): Fail if
        optimizing for size.

2017-01-20  Alan Modra  <amodra@gmail.com>

        PR target/79144
        * config/rs6000/rs6000.c (expand_strn_compare): Get the asm name
        for strcmp and strncmp from corresponding builtin decl.

2017-01-19  Uros Bizjak  <ubizjak@gmail.com>

        * config.gcc (x86_64-*-rtems*): Use i386/rtemself.h
        instead of i386/rtems-64.h.
        * config/i386/rtems-64.h: Remove.

2017-01-19  Uros Bizjak  <ubizjak@gmail.com>

        PR target/78478
        Revert:
        2013-11-05  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/rtemself.h (LONG_DOUBLE_TYPE_SIZE): New define.

2017-01-19  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64.c (aarch64_simd_gen_const_vector_dup):
        Change int to HOST_WIDE_INT.
        * config/aarch64/aarch64-protos.h
        (aarch64_simd_gen_const_vector_dup): Likewise.
        * config/aarch64/aarch64-simd.md: Add copysign<mode>3.

2017-01-19  David Malcolm  <dmalcolm@redhat.com>

        * langhooks-def.h (lhd_type_for_size): New decl.
        (LANG_HOOKS_TYPE_FOR_SIZE): Define as lhd_type_for_size.
        * langhooks.c (lhd_type_for_size): New function, taken from
        lto_type_for_size.

2017-01-19  Pat Haugen  <pthaugen@us.ibm.com>

        * config/rs6000/power9.md (power9-alu): Remove 'cmp' type and add
        define_bypass for CR latency.
        (power9-cracked-alu): Update bypass latency and remove power9-branch.
        (power9-alu2): Add define_bypass for CR latency.
        (power9-cmp): New.
        (power9-mul): Update insn latency.
        (power9-mul-compare): Update insn latency, bypass latency and remove
        power9-branch.

2016-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_nopcrelative_literal_loads):
        Delete.
        * config/aarch64/aarch64.md
        (aarch64_reload_movcp<GPF_TF:mode><P:mode>): Delete reference to
        aarch64_nopcrelative_literal_loads.
        (aarch64_reload_movcp<VALL:mode><P:mode>): Likewise.

2017-01-19  Chenghua Xu  <paul.hua.gm@gmail.com>

        * config/mips/mips.h (ISA_HAS_FUSED_MADD4): Enable for
        TARGET_LOONGSON_3A.
        (ISA_HAS_UNFUSED_MADD4): Exclude TARGET_LOONGSON_3A.

2017-01-19  Doug Gilmore  <doug.gilmore@imgtec.com>

        PR target/78176
        * config.gcc (supported_defaults): Add lxc1-sxc1.
        (with_lxc1_sxc1): Add validation.
        (all_defaults): Add lxc1-sxc1.
        * config/mips/mips.opt (mlxc1-sxc1): New option.
        * config/mips/mips.h (OPTION_DEFAULT_SPECS): Add a default for
        mlxc1-sxc1.
        (TARGET_CPU_CPP_BUILTINS): Add builtin_define for
        __mips_no_lxc1_sxc1.
        (ISA_HAS_LXC1_SXC1): Gate with mips_lxc1_sxc1.
        * doc/invoke.texi (-mlxc1-sxc1): Document the new option.
        * doc/install.texi (--with-lxc1-sxc1): Document the new option.

2017-01-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/72488
        * tree-ssa-sccvn.c (run_scc_vn): When we abort the VN make
        sure to restore SSA info.
        * tree-ssa.c (verify_ssa): Verify SSA info is not shared.

2017-01-19  Richard Earnshaw  <rearnsha@arm.com>

        PR rtl-optimization/79121
        * expr.c (expand_expr_real_2, case LSHIFT_EXPR): Look at the signedness
        of the inner type when shifting an extended value.

2017-01-17  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/78407
        * symtab.c (symtab_node::equal_address_to): Fix comparing of
        interposable aliases.

2017-01-18  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/78516
        * config/rs6000/spe.md (mov_si<mode>_e500_subreg0): Fix constraints.
        Use the evmergelohi instruction.
        (mov_si<mode>_e500_subreg4_2_le): Likewise.
        (mov_sitf_e500_subreg8_2_be): Likewise.
        (mov_sitf_e500_subreg12_2_le): Likewise.
        (mov_si<mode>_e500_subreg0_2_le): Fix constraints.
        (mov_si<mode>_e500_subreg4_2_be): Likewise.
        (mov_sitf_e500_subreg8_2_le): Likewise.
        (mov_sitf_e500_subreg12_2_be): Likewise.

2017-01-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/altivec.md (altivec_vbpermq): Change "type"
        attribute from vecsimple to vecperm.
        (altivec_vbpermq2): Likewise.

2017-01-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/79040
        * config/rs6000/altivec.h: Fix typo of vec_cntlz to vec_cnttz.

2017-01-18  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
        * config/rs6000/rs6000-protos.h (expand_strn_compare): Add arg.
        * config/rs6000/rs6000.c (expand_strn_compare): Add ability to expand
        strcmp. Fix bug where comparison didn't stop with zero byte. Fix
        case where N arg is SIZE_MAX.
        * config/rs6000/rs6000.md (cmpstrnsi): Args to expand_strn_compare.
        (cmpstrsi): Add pattern.

2017-01-18  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        __builtin_vec_revb builtins.
        * config/rs6000/rs6000-builtins.def (P9V_BUILTIN_XXBRQ_V16QI): Add
        built-in functions to support generation of the ISA 3.0 XXBR<x>
        vector byte reverse instructions.
        (P9V_BUILTIN_XXBRQ_V1TI): Likewise.
        (P9V_BUILTIN_XXBRD_V2DI): Likewise.
        (P9V_BUILTIN_XXBRD_V2DF): Likewise.
        (P9V_BUILTIN_XXBGW_V4SI): Likewise.
        (P9V_BUILTIN_XXBGW_V4SF): Likewise.
        (P9V_BUILTIN_XXBGH_V8HI): Likewise.
        (P9V_BUILTIN_VEC_REVB): Likewise.
        * config/rs6000/vsx.md (p9_xxbrq_v1ti): New insns/expanders to
        generate the ISA 3.0 XXBR<x> vector byte reverse instructions.
        (p9_xxbrq_v16qi): Likewise.
        (p9_xxbrd_<mode>, VSX_D iterator): Likewise.
        (p9_xxbrw_<mode>, VSX_W iterator): Likewise.
        (p9_xxbrh_v8hi): Likewise.
        * config/rs6000/altivec.h (vec_revb): Define if ISA 3.0.
        * doc/extend.texi (RS/6000 Altivec Built-ins): Document the
        vec_revb built-in functions.

2017-01-18  Uros Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/78952
        * config/i386/i386.md (any_extract): New code iterator.
        (*insvqi_2): Use any_extract for source operand.
        (*insvqi_3): Use any_shiftrt for source operand.

2017-01-18  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_sched_adjust_priority)
        New function.
        (TARGET_SCHED_ADJUST_PRIORITY): Define target hook.

2017-01-18  Matthias Klose  <doko@ubuntu.com>

        * doc/install.texi: Allow default for --with-target-bdw-gc-include.

2016-01-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/altivec.h (vec_bperm): Change #define.
        * config/rs6000/altivec.md (UNSPEC_VBPERMD): New enum constant.
        (altivec_vbpermq2): New define_insn.
        (altivec_vbpermd): Likewise.
        * config/rs6000/rs6000-builtin.def (VBPERMQ2): New monomorphic
        function interface.
        (VBPERMD): Likewise.
        (VBPERM): New polymorphic function interface.
        * config/rs6000/r6000-c.c (altivec_overloaded_builtins_table):
        Add entries for P9V_BUILTIN_VEC_VBPERM.
        * doc/extend.texi: Add interfaces for vec_bperm.

2017-01-18  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390-c.c (s390_expand_overloaded_builtin): Downcase
        first letter of error messages.
        (s390_resolve_overloaded_builtin): Likewise.
        * config/s390/s390.c (s390_expand_builtin): Likewise.
        (s390_invalid_arg_for_unprototyped_fn): Likewise.
        (s390_valid_target_attribute_inner_p): Likewise.
        * config/s390/s390.md ("tabort"): Likewise.

2017-01-18  Toma Tabacu  <toma.tabacu@imgtec.com>

        * config/mips/mips.h (ISA_HAS_DIV3): Remove unused macro.
        (ISA_AVOID_DIV_HILO): New macro.
        (ISA_HAS_DIV): Use new ISA_AVOID_DIV_HILO macro.
        (ISA_HAS_DDIV): Likewise.

2017-01-18  Markus Trippelsdorf  <markus@trippelsdorf.de>

        * doc/invoke.texi (fabi-version): Correct number of occurrences.

2017-01-18  Markus Trippelsdorf  <markus@trippelsdorf.de>

        * doc/invoke.texi (fabi-version): Spelling fix.

2017-01-18  Markus Trippelsdorf  <markus@trippelsdorf.de>

        PR c++/70182
        * doc/invoke.texi (fabi-version): Mention mangling fix for
        operator names.

2017-01-18  Markus Trippelsdorf  <markus@trippelsdorf.de>

        PR c++/77489
        * doc/invoke.texi (fabi-version): Document discriminator mangling.

2017-01-17  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/78875
        * config/rs6000/rs6000-opts.h (stack_protector_guard): New enum.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Handle
        the new options.
        * config/rs6000/rs6000.md (stack_protect_set): Handle the new more
        flexible settings.
        (stack_protect_test): Ditto.
        * config/rs6000/rs6000.opt (mstack-protector-guard=,
        mstack-protector-guard-reg=, mstack-protector-guard-offset=): New
        options.
        * doc/invoke.texi (Option Summary) [RS/6000 and PowerPC Options]:
        Add -mstack-protector-guard=, -mstack-protector-guard-reg=, and
        -mstack-protector-guard-offset=.
        (RS/6000 and PowerPC Options): Ditto.

2017-01-17  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (MASK_CLASS_P): New define.
        * config/i386/i386.c (inline_secondary_memory_needed): Ensure that
        there are no registers from different register sets also when
        mask registers are used.  Update function comment.
        * config/i386/i386.md (*movsi_internal): Split (*k/*krm) alternative
        to (*k/*r) and (*k/*km) alternatives.

2017-01-17  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.md (eh_return): Remove pattern and splitter.
        * config/aarch64/aarch64.h (AARCH64_EH_STACKADJ_REGNUM): Remove.
        (EH_RETURN_HANDLER_RTX): New define.
        * config/aarch64/aarch64.c (aarch64_frame_pointer_required):
        Force frame pointer in EH return functions.
        (aarch64_expand_epilogue): Add barrier for eh_return.
        (aarch64_final_eh_return_addr): Remove.
        (aarch64_eh_return_handler_rtx): New function.
        * config/aarch64/aarch64-protos.h (aarch64_final_eh_return_addr):
        Remove.
        (aarch64_eh_return_handler_rtx): New prototype.

2017-01-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/altivec.h (vec_rlmi): New #define.
        (vec_vrlnm): Likewise.
        (vec_rlnm): Likewise.
        * config/rs6000/altivec.md (UNSPEC_VRLMI): New UNSPEC enum value.
        (UNSPEC_VRLNM): Likewise.
        (VIlong): New mode iterator.
        (altivec_vrl<VI_char>mi): New define_insn.
        (altivec_vrl<VI_char>nm): Likewise.
        * config/rs6000/rs6000-builtin.def (VRLWNM): New monomorphic
        function entry.
        (VRLDNM): Likewise.
        (RLNM): New polymorphic function entry.
        (VRLWMI): New monomorphic function entry.
        (VRLDMI): Likewise.
        (RLMI): New polymorphic function entry.
        * config/rs6000/r6000-c.c (altivec_overloaded_builtin_table): Add
        new entries for P9V_BUILTIN_VEC_RLMI and P9V_BUILTIN_VEC_RLNM.
        * doc/extend.texi: Add description of vec_rlmi, vec_rlnm, and
        vec_vrlnm.

2017-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR debug/78839
        * dwarf2out.c (field_byte_offset): Restore the
        PCC_BITFIELD_TYPE_MATTERS behavior for INTEGER_CST DECL_FIELD_OFFSET
        and DECL_FIELD_BIT_OFFSET.  Use fold_build2 instead of build2 + fold.
        (analyze_variants_discr, gen_variant_part): Use fold_build2 instead
        of build2 + fold.

2017-01-17  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/67205
        * config/aarch64/aarch64.c (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): Define

2017-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR debug/71669
        * dwarf2out.c (add_data_member_location_attribute): For constant
        offset bitfield emit for -gdwarf-5 DW_AT_data_bit_offset attribute
        instead of DW_AT_data_member_location, DW_AT_bit_offset and
        DW_AT_byte_size attributes.

2017-01-17  Eric Botcazou  <ebotcazou@adacore.com>

        * config/rs6000/rs6000.c (rs6000_emit_move): Also use a TOC reference
        after forcing to constant memory when the code model is medium.

2017-01-17  Julia Koval  <julia.koval@intel.com>

        PR target/76731
        * config/i386/avx512fintrin.h
        (_mm512_i32gather_ps): Change __addr type to void const*.
        (_mm512_mask_i32gather_ps): Ditto.
        (_mm512_i32gather_pd): Ditto.
        (_mm512_mask_i32gather_pd): Ditto.
        (_mm512_i64gather_ps): Ditto.
        (_mm512_mask_i64gather_ps): Ditto.
        (_mm512_i64gather_pd): Ditto.
        (_mm512_mask_i64gather_pd): Ditto.
        (_mm512_i32gather_epi32): Ditto.
        (_mm512_mask_i32gather_epi32): Ditto.
        (_mm512_i32gather_epi64): Ditto.
        (_mm512_mask_i32gather_epi64): Ditto.
        (_mm512_i64gather_epi32): Ditto.
        (_mm512_mask_i64gather_epi32): Ditto.
        (_mm512_i64gather_epi64): Ditto.
        (_mm512_mask_i64gather_epi64): Ditto.
        (_mm512_i32scatter_ps): Change __addr type to void*.
        (_mm512_mask_i32scatter_ps): Ditto.
        (_mm512_i32scatter_pd): Ditto.
        (_mm512_mask_i32scatter_pd): Ditto.
        (_mm512_i64scatter_ps): Ditto.
        (_mm512_mask_i64scatter_ps): Ditto.
        (_mm512_i64scatter_pd): Ditto.
        (_mm512_mask_i64scatter_pd): Ditto.
        (_mm512_i32scatter_epi32): Ditto.
        (_mm512_mask_i32scatter_epi32): Ditto.
        (_mm512_i32scatter_epi64): Ditto.
        (_mm512_mask_i32scatter_epi64): Ditto.
        (_mm512_i64scatter_epi32): Ditto.
        (_mm512_mask_i64scatter_epi32): Ditto.
        (_mm512_i64scatter_epi64): Ditto.
        (_mm512_mask_i64scatter_epi64): Ditto.
        * config/i386/avx512pfintrin.h
        (_mm512_mask_prefetch_i32gather_pd): Change __addr type to void const*.
        (_mm512_mask_prefetch_i32gather_ps): Ditto.
        (_mm512_mask_prefetch_i64gather_pd): Ditto.
        (_mm512_mask_prefetch_i64gather_ps): Ditto.
        (_mm512_prefetch_i32scatter_pd): Change __addr type to void*.
        (_mm512_prefetch_i32scatter_ps): Ditto.
        (_mm512_mask_prefetch_i32scatter_pd): Ditto.
        (_mm512_mask_prefetch_i32scatter_ps): Ditto.
        (_mm512_prefetch_i64scatter_pd): Ditto.
        (_mm512_prefetch_i64scatter_ps): Ditto.
        (_mm512_mask_prefetch_i64scatter_pd): Ditto.
        (_mm512_mask_prefetch_i64scatter_ps): Ditto.
        * config/i386/avx512vlintrin.h
        (_mm256_mmask_i32gather_ps): Change __addr type to void const*.
        (_mm_mmask_i32gather_ps): Ditto.
        (_mm256_mmask_i32gather_pd): Ditto.
        (_mm_mmask_i32gather_pd): Ditto.
        (_mm256_mmask_i64gather_ps): Ditto.
        (_mm_mmask_i64gather_ps): Ditto.
        (_mm256_mmask_i64gather_pd): Ditto.
        (_mm_mmask_i64gather_pd): Ditto.
        (_mm256_mmask_i32gather_epi32): Ditto.
        (_mm_mmask_i32gather_epi32): Ditto.
        (_mm256_mmask_i32gather_epi64): Ditto.
        (_mm_mmask_i32gather_epi64): Ditto.
        (_mm256_mmask_i64gather_epi32): Ditto.
        (_mm_mmask_i64gather_epi32): Ditto.
        (_mm256_mmask_i64gather_epi64): Ditto.
        (_mm_mmask_i64gather_epi64): Ditto.
        (_mm256_i32scatter_ps): Change __addr type to void*.
        (_mm256_mask_i32scatter_ps): Ditto.
        (_mm_i32scatter_ps): Ditto.
        (_mm_mask_i32scatter_ps): Ditto.
        (_mm256_i32scatter_pd): Ditto.
        (_mm256_mask_i32scatter_pd): Ditto.
        (_mm_i32scatter_pd): Ditto.
        (_mm_mask_i32scatter_pd): Ditto.
        (_mm256_i64scatter_ps): Ditto.
        (_mm256_mask_i64scatter_ps): Ditto.
        (_mm_i64scatter_ps): Ditto.
        (_mm_mask_i64scatter_ps): Ditto.
        (_mm256_i64scatter_pd): Ditto.
        (_mm256_mask_i64scatter_pd): Ditto.
        (_mm_i64scatter_pd): Ditto.
        (_mm_mask_i64scatter_pd): Ditto.
        (_mm256_i32scatter_epi32): Ditto.
        (_mm256_mask_i32scatter_epi32): Ditto.
        (_mm_i32scatter_epi32): Ditto.
        (_mm_mask_i32scatter_epi32): Ditto.
        (_mm256_i32scatter_epi64): Ditto.
        (_mm256_mask_i32scatter_epi64): Ditto.
        (_mm_i32scatter_epi64): Ditto.
        (_mm_mask_i32scatter_epi64): Ditto.
        (_mm256_i64scatter_epi32): Ditto.
        (_mm256_mask_i64scatter_epi32): Ditto.
        (_mm_i64scatter_epi32): Ditto.
        (_mm_mask_i64scatter_epi32): Ditto.
        (_mm256_i64scatter_epi64): Ditto.
        (_mm256_mask_i64scatter_epi64): Ditto.
        (_mm_i64scatter_epi64): Ditto.
        (_mm_mask_i64scatter_epi64): Ditto.
        * config/i386/i386-builtin-types.def (V16SF_V16SF_PCFLOAT_V16SI_HI_INT)
        (V8DF_V8DF_PCDOUBLE_V8SI_QI_INT, V8SF_V8SF_PCFLOAT_V8DI_QI_INT)
        (V8DF_V8DF_PCDOUBLE_V8DI_QI_INT, V16SI_V16SI_PCINT_V16SI_HI_INT)
        (V8DI_V8DI_PCINT64_V8SI_QI_INT, V8SI_V8SI_PCINT_V8DI_QI_INT)
        (V8DI_V8DI_PCINT64_V8DI_QI_INT, V2DF_V2DF_PCDOUBLE_V4SI_QI_INT)
        (V4DF_V4DF_PCDOUBLE_V4SI_QI_INT, V2DF_V2DF_PCDOUBLE_V2DI_QI_INT)
        (V4DF_V4DF_PCDOUBLE_V4DI_QI_INT, V4SF_V4SF_PCFLOAT_V4SI_QI_INT)
        (V8SF_V8SF_PCFLOAT_V8SI_QI_INT, V4SF_V4SF_PCFLOAT_V2DI_QI_INT)
        (V4SF_V4SF_PCFLOAT_V4DI_QI_INT, V2DI_V2DI_PCINT64_V4SI_QI_INT)
        (V4DI_V4DI_PCINT64_V4SI_QI_INT, V2DI_V2DI_PCINT64_V2DI_QI_INT)
        (V4DI_V4DI_PCINT64_V4DI_QI_INT, V4SI_V4SI_PCINT_V4SI_QI_INT)
        (V8SI_V8SI_PCINT_V8SI_QI_INT, V4SI_V4SI_PCINT_V2DI_QI_INT)
        (V4SI_V4SI_PCINT_V4DI_QI_INT, VOID_PFLOAT_HI_V16SI_V16SF_INT)
        (VOID_PFLOAT_QI_V8SI_V8SF_INT, VOID_PFLOAT_QI_V4SI_V4SF_INT)
        (VOID_PDOUBLE_QI_V8SI_V8DF_INT, VOID_PDOUBLE_QI_V4SI_V4DF_INT)
        (VOID_PDOUBLE_QI_V4SI_V2DF_INT, VOID_PFLOAT_QI_V8DI_V8SF_INT)
        (VOID_PFLOAT_QI_V4DI_V4SF_INT, VOID_PFLOAT_QI_V2DI_V4SF_INT)
        (VOID_PDOUBLE_QI_V8DI_V8DF_INT, VOID_PDOUBLE_QI_V4DI_V4DF_INT)
        (VOID_PDOUBLE_QI_V2DI_V2DF_INT, VOID_PINT_HI_V16SI_V16SI_INT)
        (VOID_PINT_QI_V8SI_V8SI_INT, VOID_PINT_QI_V4SI_V4SI_INT)
        (VOID_PLONGLONG_QI_V8SI_V8DI_INT, VOID_PLONGLONG_QI_V4SI_V4DI_INT)
        (VOID_PLONGLONG_QI_V4SI_V2DI_INT, VOID_PINT_QI_V8DI_V8SI_INT)
        (VOID_PINT_QI_V4DI_V4SI_INT, VOID_PINT_QI_V2DI_V4SI_INT)
        (VOID_PLONGLONG_QI_V8DI_V8DI_INT, VOID_QI_V8SI_PCINT64_INT_INT)
        (VOID_PLONGLONG_QI_V4DI_V4DI_INT, VOID_PLONGLONG_QI_V2DI_V2DI_INT)
        (VOID_HI_V16SI_PCINT_INT_INT, VOID_QI_V8DI_PCINT64_INT_INT)
        (VOID_QI_V8DI_PCINT_INT_INT): Remove.
        (V16SF_V16SF_PCVOID_V16SI_HI_INT,  V8DF_V8DF_PCVOID_V8SI_QI_INT)
        (V8SF_V8SF_PCVOID_V8DI_QI_INT, V8DF_V8DF_PCVOID_V8DI_QI_INT)
        (V16SI_V16SI_PCVOID_V16SI_HI_INT, V8DI_V8DI_PCVOID_V8SI_QI_INT)
        (V8SI_V8SI_PCVOID_V8DI_QI_INT, V8DI_V8DI_PCVOID_V8DI_QI_INT)
        (VOID_PVOID_HI_V16SI_V16SF_INT, VOID_PVOID_QI_V8SI_V8DF_INT)
        (VOID_PVOID_QI_V8DI_V8SF_INT, VOID_PVOID_QI_V8DI_V8DF_INT)
        (VOID_PVOID_HI_V16SI_V16SI_INT, VOID_PVOID_QI_V8SI_V8DI_INT)
        (VOID_PVOID_QI_V8DI_V8SI_INT, VOID_PVOID_QI_V8DI_V8DI_INT)
        (V2DF_V2DF_PCVOID_V4SI_QI_INT, V4DF_V4DF_PCVOID_V4SI_QI_INT)
        (V2DF_V2DF_PCVOID_V2DI_QI_INT, V4DF_V4DF_PCVOID_V4DI_QI_INT
        (V4SF_V4SF_PCVOID_V4SI_QI_INT, V8SF_V8SF_PCVOID_V8SI_QI_INT)
        (V4SF_V4SF_PCVOID_V2DI_QI_INT, V4SF_V4SF_PCVOID_V4DI_QI_INT)
        (V2DI_V2DI_PCVOID_V4SI_QI_INT, V4DI_V4DI_PCVOID_V4SI_QI_INT)
        (V2DI_V2DI_PCVOID_V2DI_QI_INT, V4DI_V4DI_PCVOID_V4DI_QI_INT)
        (V4SI_V4SI_PCVOID_V4SI_QI_INT, V8SI_V8SI_PCVOID_V8SI_QI_INT)
        (V4SI_V4SI_PCVOID_V2DI_QI_INT, V4SI_V4SI_PCVOID_V4DI_QI_INT)
        (VOID_PVOID_QI_V8SI_V8SF_INT, VOID_PVOID_QI_V4SI_V4SF_INT)
        (VOID_PVOID_QI_V4SI_V4DF_INT, VOID_PVOID_QI_V4SI_V2DF_INT)
        (VOID_PVOID_QI_V4DI_V4SF_INT, VOID_PVOID_QI_V2DI_V4SF_INT)
        (VOID_PVOID_QI_V4DI_V4DF_INT, VOID_PVOID_QI_V2DI_V2DF_INT)
        (VOID_PVOID_QI_V8SI_V8SI_INT, VOID_PVOID_QI_V4SI_V4SI_INT)
        (VOID_PVOID_QI_V4SI_V4DI_INT, VOID_PVOID_QI_V4SI_V2DI_INT)
        (VOID_PVOID_QI_V4DI_V4SI_INT, VOID_PVOID_QI_V2DI_V4SI_INT)
        (VOID_PVOID_QI_V4DI_V4DI_INT, VOID_PVOID_QI_V2DI_V2DI_INT)
        (VOID_QI_V8SI_PCVOID_INT_INT, VOID_HI_V16SI_PCVOID_INT_INT)
        (VOID_QI_V8DI_PCVOID_INT_INT): Add.
        * config/i386/i386.c (ix86_init_mmx_sse_builtins): Adjust builtin
        definitions accordingly.

2017-01-17  Kito Cheng  <kito.cheng@gmail.com>
            Kuan-Lin Chen  <kuanlinchentw@gmail.com>

        PR target/79079
        * internal-fn.c (expand_mul_overflow): Use convert_modes instead of
        gen_lowpart.

2017-01-17  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/79058
        * ira-conflicts.c (ira_build_conflicts): Update total conflict
        hard regs for inner regno.

2017-01-17  Martin Liska  <mliska@suse.cz>

        PR ipa/71207
        * ipa-polymorphic-call.c (contains_type_p): Fix wrong
        assumption and add comment.

2017-01-17  Nathan Sidwell  <nathan@acm.org>

        * ipa-visibility.c (localize_node): New function, broken out of ...
        (function_and_variable_visibility): ... here. Call it.

2017-01-17  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/77445
        * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges):
        correctly set frequency of oudgoing edge.
        (duplicate_thread_path): Fix profile updating.

2017-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR other/79046
        * configure.ac: Add GCC_BASE_VER.
        * Makefile.in (version): Use @get_gcc_base_ver@ instead of cat to get
        version from BASE-VER file.
        (CFLAGS-gcc.o): Add -DBASEVER=$(BASEVER_s).
        (gcc.o): Depend on $(BASEVER).
        * common.opt (dumpfullversion): New option.
        * gcc.c (driver_handle_option): Handle OPT_dumpfullversion.
        * doc/invoke.texi: Document -dumpfullversion.
        * doc/install.texi: Document --with-gcc-major-version-only.
        * configure: Regenerated.

2017-01-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71433
        * tree-vrp.c (register_new_assert_for): Merge same asserts
        on all incoming edges.
        (process_assert_insertions_for): Handle insertions at the
        beginning of BBs.

2017-01-17  Gerald Pfeifer  <gerald@pfeifer.com>

        * config/i386/cygwin.h (LIBGCJ_SONAME): Remove.
        * config/i386/mingw32.h (LIBGCJ_SONAME): Remove.

2017-01-17  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/78633
        * config/sh/sh.md (cmpeqsi_t+1): Call copy_rtx to avoid invalid
        RTL sharing.

2017-01-17  Alan Modra  <amodra@gmail.com>

        PR target/79066
        * config/rs6000/rs6000.md (elf_high, elf_low): Disable when pic.
        * config/rs6000/rs6000.c (rs6000_emit_allocate_stack): Don't allow
        symbolic stack limit when pic.

2017-01-16  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/78608
        * gimple-ssa-sprintf.c (tree_digits): Avoid negating TYPE_MIN.

2017-01-16  Jeff Law  <law@redhat.com>

        Revert:
        2016-12-02  Tadek Kijkowski  <tkijkowski@gmail.com>
        * Makefile.in (PREPROCESSOR_DEFINES): Add a level of indirection
        for several include directories that may be relative to sysroot.
        * config/i386/x-mingw32 (gplus_includedir): Define.
        (gplus_tool_includedir, gplus_backward_include_dir): Likewise.
        (native_system_includedir): Likewise.
        * config/i386/mingw32.h (STANDARD_STARTFILE_PREFIX_1): Do not
        override if TARGET_SYSTEM_ROOT is defined.
        (NATIVE_SYSTEM_HEADER_DIR): Likewise.

        PR tree-optimization/79090
        PR tree-optimization/33562
        PR tree-optimization/61912
        PR tree-optimization/77485
        * tree-ssa-dse.c (compute_trims): Accept STMT argument.  Dump STMT
        and computed trims into the dump file.

2017-01-17  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (LIMIT_RELOAD_CLASS): Remove.

2017-01-16  Jakub Jelinek  <jakub@redhat.com>

        PR c/79089
        * gimplify.c (gimplify_init_constructor): If want_value and
        object == lhs, unshare lhs to avoid invalid tree sharing.  Formatting
        fix.

        PR target/79080
        * loop-doloop.c (doloop_modify): Call unshare_all_rtl_in_chain on
        sequence.  Formatting fixes.
        (doloop_optimize): Formatting fixes.

        PR driver/49726
        * gcc.c (debug_level_greater_than_spec_func): New function.
        (static_spec_functions): Add debug-level-gt spec function.
        (ASM_DEBUG_SPEC, cpp_options): Use %:debug-level-gt(0) instead of
        !g0.
        * config/darwin.h (DSYMUTIL_SPEC, ASM_DEBUG_SPEC): Likewise.
        * config/darwin9.h (DSYMUTIL_SPEC, ASM_DEBUG_SPEC): Likewise.
        * common.opt (g, gcoff, gdwarf, gdwarf-, ggdb, gno-pubnames,
        gpubnames, ggnu-pubnames, gno-record-gcc-switches,
        grecord-gcc-switches, gno-strict-dwarf, gstrict-dwarf, gstabs,
        gstabs+, gtoggle, gvms, gxcoff, gxcoff+): Add Driver flag.

2017-01-16  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (HARD_REGNO_CALLER_SAVE_MODE): Apply HImode and
        QImode fixups to general and mask registers only.

2017-01-16  Carl Love  <cel@us.ibm.com>

        * config/rs6000/rs6000-c (altivec_overloaded_builtins): Add support
        for built-in functions
        vector signed char vec_nabs (vector signed char)
        vector signed short vec_nabs (vector signed short)
        vector signed int vec_nabs (vector signed int)
        vector signed long long vec_nabs (vector signed long long)
        vector float vec_nabs (vector float)
        vector double vec_nabs (vector double)
        * config/rs6000/rs6000-builtin.def: Add definitions for NABS functions
        and NABS overload.
        * config/rs6000/altivec.md: New define_expand nabs<mode>2 types
        * config/rs6000/altivec.h: New define for vec_nabs built-in function.
        * doc/extend.texi: Update the documentation file for the new built-in
        functions.

2017-01-16  Martin Sebor  <msebor@redhat.com>

        * gimple-ssa-sprintf.c (format_directive): Correct a typo in a warning
        message.

2017-01-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rtx_is_swappable_p): Change
        UNSPEC_VSX__XXSPLTD to require special splat handling.

2017-01-16  David Malcolm  <dmalcolm@redhat.com>

        PR bootstrap/78616
        * system.h: Poison strndup.

2017-01-16  Alan Modra  <amodra@gmail.com>

        PR target/79098
        * config/rs6000/rs6000.c (rs6000_legitimate_combined_insn): Don't
        use a switch.

2017-01-16  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.h (BRANCH_COST) [reload_completed]: Increase by 4.

2017-01-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_legitimate_combined_insn): Do not
        call recog here.  Assert that INSN_CODE (insn) is non-negative.

2017-01-15  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/72749
        * cfgrtl.c (rtl_split_edge): Also patch jump insns that jump to the
        fallthrough.
        * haifa-sched.c (dump_insn_stream): Don't crash if there is a label
        in the currently scheduled RTL fragment.

2017-01-15  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/78751
        * ifcvt.c (find_cond_trap): If we generated a non-existing insn,
        give up.

2017-01-14  Jeff Law  <law@redhat.com>

        PR tree-optimization/79090
        * tree-ssa-dse.c (valid_ao_ref_for_dse): Reject zero length and
        variable length stores.
        (compute_trims): Delete dead assignment to *trim_tail.
        (dse_dom_walker::dse_optimize_stmt): Optimize mem* calls with
        zero length.

2017-01-14  Bernd Schmidt  <bschmidt@redhat.com>

        PR rtl-optimization/78626
        PR rtl-optimization/78727
        * cprop.c (one_cprop_pass): Collect unconditional traps in the middle
        of a block, and split such blocks after everything else is finished.

2017-01-14  Alan Modra  <amodra@gmail.com>

        PR target/72749
        * combine.c (recog_for_combine_1): Set INSN_CODE before calling
        target legitimate_combined_insn.
        * config/rs6000/rs6000.c (TARGET_LEGITIMATE_COMBINED_INSN): Define.
        (rs6000_legitimate_combined_insn): New function.
        * config/rs6000/rs6000.md (UNSPEC_DOLOOP): Delete, and remove
        all uses.
        (ctr<mode>_internal3): Rename from *ctr<mode>_internal5.
        (ctr<mode>_internal4): Rename from *ctr<mode>_internal6.
        (ctr<mode>_internal1, ctr<mode>_internal2): Remove '*' from name.

2017-01-14  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/frontends.texi (G++ and GCC): Remove references to Java.

2017-01-13  Jeff Law  <law@redhat.com>

        PR tree-optimization/33562
        PR tree-optimization/61912
        PR tree-optimization/77485
        * tree-ssa-dse.c (delete_dead_call): Accept gsi rather than
        a statement.
        (delete_dead_assignment): Likewise.
        (dse_dom_walker::dse_optimize_stmt): Pass in the gsi rather than
        statement to delete_dead_call and delete_dead_assignment.

2017-01-13  David Malcolm  <dmalcolm@redhat.com>

        PR c/78304
        * substring-locations.c (format_warning_va): Strengthen case 1 so
        that both endpoints of the substring must be within the format
        range for just the substring to be printed.

2017-01-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.opt (msgx): Use ix86_isa_flags2 variable.
        * config/i386/i386.c (ix86_target_string): Add missing options
        to isa_opts and reorder options by implied ISAs.  Rename isa_opts2 to
        isa2_opts, ix86_flag_opts to flag2_opts, ix86_target_other to
        flags_other and ix86_target_other to flags2_other.  Display unknown
        isa2 options.
        (ix86_valid_target_attribute_inner_p): Add missing options and
        reorder options by implied ISAs, as in ix86_target_string.

2017-01-13  Richard Sandiford  <richard.sandiford@arm.com>

        * hash-table.h (hash_table::too_empty_p): New function.
        (hash_table::expand): Use it.
        (hash_table::traverse): Likewise.
        (hash_table::empty_slot): Use sizeof (value_type) instead of
        sizeof (PTR) to convert bytes to elements.  Shrink the table
        if the current size is excessive for the current number of
        elements.

2017-01-13  Richard Sandiford  <richard.sandiford@arm.com>

        * ira-costs.c (record_reg_classes): Break from the inner loop
        early once alt_fail is known to be true.  Update outer loop
        handling accordingly.

2017-01-13  Jeff Law  <law@redhat.com>

        * tree-ssa-dse.c (decrement_count): New function.
        (increment_start_addr, maybe_trim_memstar_call): Likewise.
        (dse_dom_walker::optimize_stmt): Call maybe_trim_memstar_call directly
        when we know the partially dead statement is a mem* function.

        PR tree-optimization/61912
        PR tree-optimization/77485
        * tree-ssa-dse.c: Include expr.h.
        (maybe_trim_constructor_store): New function.
        (maybe_trim_partially_dead_store): Call maybe_trim_constructor_store.

        PR tree-optimization/33562
        PR tree-optimization/61912
        PR tree-optimization/77485
        * doc/invoke.texi: Document new dse-max-object-size param.
        * params.def (PARM_DSE_MAX_OBJECT_SIZE): New PARAM.
        * tree-ssa-dse.c: Include params.h.
        (dse_store_status): New enum.
        (initialize_ao_ref_for_dse): New, partially extracted from
        dse_optimize_stmt.
        (valid_ao_ref_for_dse, normalize_ref): New.
        (setup_live_bytes_from_ref, compute_trims): Likewise.
        (clear_bytes_written_by, maybe_trim_complex_store): Likewise.
        (maybe_trim_partially_dead_store): Likewise.
        (maybe_trim_complex_store): Likewise.
        (dse_classify_store): Renamed from dse_possibly_dead_store_p.
        Track what bytes live from the original store.  Return tri-state
        for dead, partially dead or live.
        (dse_dom_walker): Add constructor, destructor and new private members.
        (delete_dead_call, delete_dead_assignment): New extracted from
        dse_optimize_stmt.
        (dse_optimize_stmt): Make a member of dse_dom_walker.
        Use initialize_ao_ref_for_dse.

        PR tree-optimization/33562
        PR tree-optimization/61912
        PR tree-optimization/77485
        * sbitmap.h (bitmap_count_bits): Prototype.
        (bitmap_clear_range, bitmap_set_range): Likewise.
        * sbitmap.c (bitmap_clear_range): New function.
        (bitmap_set_range, sbitmap_popcount, bitmap_count_bits): Likewise.

2017-01-13  Martin Liska  <mliska@suse.cz>

        PR ipa/79043
        * function.c (set_cfun): Add new argument force.
        * function.h (set_cfun): Likewise.
        * ipa-inline-transform.c (inline_call): Use the function when
        strict alising from is dropped for function we inline to.

2017-01-13  Richard Biener  <rguenther@suse.de>

        * tree-pretty-print.c (dump_generic_node): Fix inverted condition
        for dumping GIMPLE INTEGER_CSTs.

2017-01-13  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/sol2.h (TARGET_OS_CPP_BUILTINS): Define __STDC_VERSION__
        to 201112L since C++17.

2017-01-13  Maxim Ostapenko  <m.ostapenko@samsung.com>

        PR sanitizer/78887
        * asan.c (asan_needs_odr_indicator_p): Don't emit ODR indicators
        if -fsanitize=kernel-address is present.

2017-01-13  Richard Biener  <rguenther@suse.de>

        * tree-pretty-print.c (dump_generic_node): Dump INTEGER_CSTs
        as _Literal ( type ) number in case usual suffixes do not
        preserve all information.

2017-01-13  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77283
        * gimple-ssa-split-paths.c: Include gimple-ssa.h, tree-phinodes.h
        and ssa-iterators.h.
        (is_feasible_trace): Implement a cost model based on joiner
        PHI node uses.

2017-01-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/79004
        * config/rs6000/rs6000.md (FP_ISA3): Do not optimize converting
        char or short to __float128/_Float128 directly.

2017-01-12  Martin Sebor  <msebor@redhat.com>

        to -Wformat-overflow.
        * gimple-ssa-sprintf.c (pass_sprintf_length::gate): Adjust.
        (min_bytes_remaining): Same.
        (get_string_length): Same.
        (format_string): Same.
        (format_directive): Same.
        (add_bytes): Same.
        (pass_sprintf_length::handle_gimple_call): Same.

2017-01-12  Jakub Jelinek  <jakub@redhat.com>

        * gimple-ssa-sprintf.c (try_substitute_return_value): Remove
        info.nowrite calls with no lhs that can't throw.  Return bool
        whether gsi_remove has been called or not.
        (pass_sprintf_length::handle_gimple_call): Return bool whether
        try_substitute_return_value called gsi_remove.  Formatting fix.
        (pass_sprintf_length::execute): Don't use gsi_remove if
        handle_gimple_call returned true.

        PR bootstrap/79069
        * cfgrtl.c (rtl_tidy_fallthru_edge): For any_uncondjump_p that can't
        be removed due to side-effects, don't remove following barrier nor
        turn the successor edge into fallthru edge.

2017-01-12  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/79044
        * config/rs6000/rs6000.c (insn_is_swappable_p): Mark
        element-reversing loads and stores as not swappable.

2017-01-12  Nathan Sidwell  <nathan@acm.org>
            Nicolai Stange  <nicstange@gmail.com>

        * combine.c (try_combine): Don't ignore result of overlap checking
        loop.  Combine overlap & asm check into single loop.

2017-01-12  Richard Biener  <rguenther@suse.de>

        * tree-pretty-print.c (dump_generic_node): Provide -gimple
        variant for MEM_REF.  Sanitize INTEGER_CST for -gimple.

2017-01-12  Richard Biener  <rguenther@suse.de>

        * tree.c (initialize_tree_contains_struct): Make TS_OPTIMIZATION
        and TS_TARGET_OPTION directly derive from TS_BASE.
        * tree-core.h (tree_optimization_option): Derive from tree_base.
        (tree_target_option): Likewise.

2017-01-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (memory_address_length): Increase len
        only when rip_relative_addr_p returns false.

2017-01-11  Julia Koval  <julia.koval@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_SGX_UNSET): New.
        (OPTION_MASK_ISA_SGX_SET): New.
        (ix86_handle_option): Handle OPT_msgx.
        * config.gcc: Added sgxintrin.h.
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect sgx.
        * config/i386/i386-c.c (ix86_target_macros_internal): Define __SGX__.
        * config/i386/i386.c (ix86_target_string): Add -msgx.
        (PTA_SGX): New.
        (ix86_option_override_internal): Handle new options.
        (ix86_valid_target_attribute_inner_p): Add sgx.
        * config/i386/i386.h (TARGET_SGX, TARGET_SGX_P): New.
        * config/i386/i386.opt: Add msgx.
        * config/i386/sgxintrin.h: New file.
        * config/i386/x86intrin.h: Add sgxintrin.h.

2017-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR c++/71537
        * fold-const.c (maybe_nonzero_address): Return 1 for function
        local objects.
        (tree_single_nonzero_warnv_p): Don't handle function local objects
        here.

        PR c++/72813
        * gcc.c (default_compilers): Don't add -o %g.s for -S -save-temps
        of c-header.

2017-01-11  David Malcolm  <dmalcolm@redhat.com>

        PR driver/78877
        * opts.c: Include "spellcheck.h"
        (struct string_fragment): New struct.
        (struct edit_distance_traits<const string_fragment &>): New
        struct.
        (get_closest_sanitizer_option): New function.
        (parse_sanitizer_options): Offer suggestions for unrecognized arguments.

2017-01-11  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (DWARF_COMPILE_UNIT_HEADER_SIZE): For DWARF5 decrease
        by 12.
        (DWARF_COMDAT_TYPE_UNIT_HEADER_SIZE): Always
        DWARF_COMPILE_UNIT_HEADER_SIZE plus 12.
        (DWARF_COMPILE_UNIT_SKELETON_HEADER_SIZE): Define.
        (calc_base_type_die_sizes): Use DWARF_COMPILE_UNIT_SKELETON_HEADER_SIZE
        for initial die_offset if dwarf_split_debug_info.
        (output_comp_unit): Use DWARF_COMPILE_UNIT_SKELETON_HEADER_SIZE for
        initial next_die_offset if dwo_id is non-NULL.  Don't emit padding
        fields.
        (output_skeleton_debug_sections): Formatting fix.  Use
        DWARF_COMPILE_UNIT_SKELETON_HEADER_SIZE instead of
        DWARF_COMPILE_UNIT_HEADER_SIZE.  Don't emit padding.

2017-01-11  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/cortex-a53.md: Add bypasses for
        cortex_a53_r2f_cvt.
        (cortex_a53_r2f): Only use for transfers.
        (cortex_a53_f2r): Likewise.
        (cortex_a53_r2f_cvt): Add reservation for conversions.
        (cortex_a53_f2r_cvt): Likewise.

2017-01-11  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm_neon.h: Add __artificial__ and gnu_inline
        to all inlined functions, change static to extern.

2017-01-11  Christophe Lyon  <christophe.lyon@linaro.org>

        PR target/78253
        * config/arm/arm.c (legitimize_pic_address): Handle reference to
        weak symbol.
        (arm_assemble_integer): Likewise.

2017-01-11  Richard Earnshaw  <rearnsha@arm.com>

        * config.gcc: Use new awk script to check CPU, FPU and architecture
        parameters for --with-... options.
        * config/arm/parsecpu.awk: New file
        * config/arm/arm-cpus.in: New file.
        * config/arm/arm-opts.h: Include arm-cpu.h instead of processing .def
        files.
        * config/arm/arm.c: Include arm-cpu-data.h instead of processing .def
        files.
        * config/arm/t-arm: Update dependency rules.
        * common/config/arm/arm-common.c: Include arm-cpu-cdata.h instead
        of processing .def files.
        * config/arm/genopt.sh: Deleted.
        * config/arm/gentune.sh: Deleted.
        * config/arm/arm-cores.def: Deleted.
        * config/arm/arm-arches.def: Deleted.
        * config/arm/arm-fpus.def: Deleted.
        * config/arm/arm-tune.md: Regenerated.
        * config/arm/arm-tables.opt: Regenerated.
        * config/arm/arm-cpu.h: New generated file.
        * config/arm/arm-cpu-data.h: New generated file.
        * config/arm/arm-cpu-cdata.h: New generated file.

2017-01-11  Maxim Ostapenko  <m.ostapenko@samsung.com>

        PR lto/79042
        * lto-cgraph.c (lto_output_varpool_node): Pack dynamically_initialized
        bit.
        (input_varpool_node): Unpack dynamically_initialized bit.

2017-01-11  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/79032
        * lra-constraints.c (simplify_operand_subreg): In the MEM case, test
        the alignment of the adjusted memory reference against that of MODE,
        instead of the alignment of the original memory reference.

2017-01-11  Martin Jambor  <mjambor@suse.cz>

        * hsa.c (hsa_callable_function_p): Revert addition of DECL_ARTIFICIAL
        test.
        * ipa-hsa.c (process_hsa_functions): Only duplicate non-artificial
        decorated functions.

2017-01-11  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (evrp_dom_walker::before_dom_children): Also
        set range/nonnull info for PHI results.  Do not set it on
        stmts marked for removal.

2017-01-10  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.c (store_field): In the bitfield case, fetch the return value
        from the registers before applying a single big-endian adjustment.
        Always do a final load for a BLKmode value not larger than a word.

2017-01-10  David Malcolm  <dmalcolm@redhat.com>

        PR c++/77949
        * input.c (selftest::test_accessing_ordinary_linemaps): Verify
        that we correctly handle column numbers greater than
        LINE_MAP_MAX_COLUMN_NUMBER.

2017-01-10  Martin Sebor  <msebor@redhat.com>

        PR middle-end/78245
        * gimple-ssa-sprintf.c (get_destination_size): Call
        {init,fini}object_sizes.
        * tree-object-size.c (addr_object_size): Adjust.
        (pass_through_call): Adjust.
        (pass_object_sizes::execute): Adjust.
        * tree-object-size.h (fini_object_sizes): Declare.

2017-01-10  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/78775
        * builtins.c (get_size_range): Move...
        * calls.c: ...to here.
        (alloc_max_size): Accept zero argument.
        (operand_signed_p): Remove.
        (maybe_warn_alloc_args_overflow): Call get_size_range.
        * calls.h (get_size_range): Declare.

2017-01-10  Joe Seymour  <joe.s@somniumtech.com>

        * config/msp430/driver-msp430.c (msp430_mcu_data): Sync with data
        from TI's devices.csv file as of September 2016.
        * config/msp430/msp430.c (msp430_mcu_data): Likewise.

2017-01-10  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/extend.texi: Tweak formatting to fix overfull hbox warnings.
        * doc/invoke.texi: Likewise.
        * doc/md.texi: Likewise.
        * doc/objc.texi: Likewise.

2017-01-10  Joshua Conner  <joshconner@google.com>

        * config/arm/fuchsia-elf.h: New file.
        * config/fuchsia.h: New file.
        * config.gcc (*-*-fuchsia*): Set native_system_header_dir.
        (aarch64*-*-fuchsia*, arm*-*-fuchsia*, x86_64-*-fuchsia*): Add to
        targets.
        * config.host: (aarch64*-*-fuchsia*, arm*-*-fuchsia*): Add to hosts.

2016-01-10  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79034
        * tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds):
        Propagate out degenerate PHIs in the joiner.

2017-01-10  Martin Liska  <mliska@suse.cz>

        * ipa-icf.c (sort_sem_items_by_decl_uid): New function.
        (sort_congruence_classes_by_decl_uid): Likewise.
        (sort_congruence_class_groups_by_decl_uid): Likewise.
        (sem_item_optimizer::merge_classes): Sort class, groups in these
        classes and members in the groups by DECL_UID of declarations.
        This would make merge operations stable.

2017-01-10  Martin Liska  <mliska@suse.cz>

        * ipa-icf.c (sem_item_optimizer::sem_item_optimizer): Remove
        usage of m_classes_vec.
        (sem_item_optimizer::~sem_item_optimizer):  Likewise.
        (sem_item_optimizer::get_group_by_hash): Likewise.
        (sem_item_optimizer::subdivide_classes_by_equality): Likewise.
        (sem_item_optimizer::subdivide_classes_by_sensitive_refs): Likewise.
        (sem_item_optimizer::verify_classes): Likewise.
        (sem_item_optimizer::process_cong_reduction): Likewise.
        (sem_item_optimizer::dump_cong_classes): Likewise.
        (sem_item_optimizer::merge_classes): Likewise.
        * ipa-icf.h (congruence_class_hash): Rename from
        congruence_class_group_hash.  Remove declaration of m_classes_vec.

2017-01-10  Andrew Senkevich  <andrew.senkevich@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_AVX512VPOPCNTDQ_SET,
        OPTION_MASK_ISA_AVX512VPOPCNTDQ_UNSET): New.
        * config.gcc: Add avx512vpopcntdqintrin.h.
        * config/i386/avx512vpopcntdqintrin.h: New.
        * config/i386/cpuid.h (bit_AVX512VPOPCNTDQ): New.
        * config/i386/i386-builtin-types.def: Add new types.
        * config/i386/i386-builtin.def (__builtin_ia32_vpopcountd_v16si,
        __builtin_ia32_vpopcountd_v16si_mask, __builtin_ia32_vpopcountq_v8di,
        __builtin_ia32_vpopcountq_v8di_mask): New.
        * config/i386/i386-c.c (ix86_target_macros_internal): Define
        __AVX512VPOPCNTDQ__.
        * config/i386/i386.c (ix86_target_string): Add -mavx512vpopcntdq.
        (PTA_AVX512VPOPCNTDQ): Define.
        * config/i386/i386.h (TARGET_AVX512VPOPCNTDQ,
        TARGET_AVX512VPOPCNTDQ_P): Define.
        * config/i386/i386.opt: Add mavx512vpopcntdq.
        * config/i386/immintrin.h: Include avx512vpopcntdqintrin.h.
        * config/i386/sse.md (define_insn "vpopcount<mode><mask_name>"): New.

2017-01-01  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/77484
        * predict.def (PRED_CALL): Set to 67.

2017-01-09  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.c (store_field): In the bitfield case, if the value comes from
        a function call and is of an aggregate type returned in registers, do
        not modify the field mode; extract the value in all cases if the mode
        is BLKmode and the size is not larger than a word.

2017-01-09  Dominique d'Humieres  <dominiq@lps.ens.fr>

        PR target/71017
        * config/i386/cpuid.h: Fix undefined behavior.

2017-01-04  Jeff Law  <law@redhat.com>

        PR tree-optimization/79007
        PR tree-optimization/67955
        * tree-ssa-alias.c (same_addr_size_stores_p): Only need to be
        conservative for pt.null when flag_non_call_exceptions is on.

2017-01-09  Jakub Jelinek  <jakub@redhat.com>

        PR translation/79019
        PR translation/79020
        * params.def (PARAM_INLINE_MIN_SPEEDUP,
        PARAM_IPA_CP_SINGLE_CALL_PENALTY,
        PARAM_USE_AFTER_SCOPE_DIRECT_EMISSION_THRESHOLD): Fix typos
        in descriptions.
        * config/avr/avr.opt (maccumulate-args): Likewise.
        * config/msp430/msp430.opt (mwarn-mcu): Likewise.
        * common.opt (freport-bug): Likewise.
        * cif-code.def (CIF_FINAL_ERROR): Likewise.
        * doc/invoke.texi (ipa-cp-single-call-penalty): Likewise.
        * config/s390/s390.c (s390_invalid_binary_op): Fix spelling in
        translatable string.
        * config/i386/i386.c (function_value_32): Likewise.
        * config/nios2/nios2.c (nios2_valid_target_attribute_rec): Likewise.
        * config/msp430/msp430.c (msp430_option_override, msp430_attr):
        Likewise.
        * config/msp430/driver-msp430.c (msp430_select_hwmult_lib): Likewise.
        * common/config/msp430/msp430-common.c (msp430_handle_option):
        Likewise.
        * symtab.c (symtab_node::verify_base): Likewise.
        * opts.c (set_debug_level): Likewise.
        * tree.c (verify_type_variant): Likewise.  Fix typo in comment.
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Add
        missing whitespace to translatable strings.
        * config/avr/avr.md (bswapsi2): Fix typo in comment.
        * config/sh/superh.h: Likewise.
        * config/i386/xopintrin.h: Likewise.
        * config/i386/znver1.md: Likewise.
        * config/rs6000/rs6000.c (struct rs6000_opt_mask): Likewise.
        * ipa-inline-analysis.c (compute_inline_parameters): Likewise.
        * double-int.h (struct double_int): Likewise.
        * double-int.c (div_and_round_double): Likewise.
        * wide-int.cc: Likewise.
        * tree-ssa.c (non_rewritable_mem_ref_base): Likewise.
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Likewise.
        * cfgcleanup.c (crossjumps_occured): Renamed to ...
        (crossjumps_occurred): ... this.
        (try_crossjump_bb, try_head_merge_bb, try_optimize_cfg, cleanup_cfg):
        Adjust all uses.

        PR tree-optimization/78899
        * tree-if-conv.c (version_loop_for_if_conversion): Instead of
        returning bool return struct loop *, NULL for failure and the new
        loop on success.
        (versionable_outer_loop_p): Don't version outer loop if it has
        dont_vectorized bit set.
        (tree_if_conversion): When versioning outer loop, ensure
        tree_if_conversion is performed also on the inner loop of the
        non-vectorizable outer loop copy.
        * tree-vectorizer.c (set_uid_loop_bbs): Formatting fix.  Fold
        LOOP_VECTORIZED in inner loop of the scalar outer loop and
        prevent vectorization of it.
        (vectorize_loops): For outer + inner LOOP_VECTORIZED, ensure
        the outer loop vectorization of the non-scalar version is attempted
        before vectorization of the inner loop in scalar version.  If
        outer LOOP_VECTORIZED guarded loop is not vectorized, prevent
        vectorization of its inner loop.
        * tree-vect-loop-manip.c (rename_variables_in_bb): If outer_loop
        has 2 inner loops, rename also on edges from bb whose single pred
        is outer_loop->header.  Fix typo in function comment.

2017-01-09  Martin Sebor  <msebor@redhat.com>

        PR bootstrap/79033
        * asan.c (asan_emit_stack_protection): Increase local buffer size
        to avoid snprintf truncation warning.

2017-01-09  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-cores.def: Add thunderx2t99.  Change vulcan
        to reference thunderx2t99 for the tuning structure
        * config/aarch64/aarch64-cost-tables.h (vulcan_extra_costs):
        Rename to ...
        (thunderx2t99_extra_costs): This.
        * config/aarch64/aarch64-tune.md: Regenerate.
        * config/aarch64/aarch64.c (vulcan_addrcost_table): Rename to ...
        (vulcan_addrcost_table): This.
        (vulcan_regmove_cost): Rename to ...
        (thunderx2t99_regmove_cost): This.
        (vulcan_vector_cost): Rename to ...
        (thunderx2t99_vector_cost): this.
        (vulcan_branch_cost): Rename to ...
        (thunderx2t99_branch_cost): This.
        (vulcan_tunings): Rename to ...
        (thunderx2t99_tunings): This and s/vulcan/thunderx2t99 .
        * doc/invoke.texi (AARCH64/mtune): Add thunderx2t99.

2017-01-09  Martin Jambor  <mjambor@suse.cz>

        PR ipa/78365
        PR ipa/78599
        * ipa-prop.h (ipa_jump_func): Swap positions of vr_known and m_vr.
        * ipa-cp.c (ipa_vr_operation_and_type_effects): New function.
        (propagate_vr_accross_jump_function): Use the above function for all
        value range computations for pass-through jump functions and type
        converasion from explicit value range values.
        (ipcp_propagate_stage): Do not attempt to deduce types of formal
        parameters from TYPE_ARG_TYPES.
        * ipa-prop.c (ipa_write_jump_function): Remove trailing whitespace.
        (ipa_write_node_info): Stream type of the actual argument.
        (ipa_read_node_info): Likewise. Also remove trailing whitespace.

2017-01-09  Martin Liska  <mliska@suse.cz>

        PR pch/78970
        * gcc.c (driver_handle_option): Handle OPT_E and set have_E.
        (lookup_compiler): Do not show error message with have_E.

2017-01-09  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/78938
        * tree-vect-stmts.c (vectorizable_condition): For non-masked COND_EXPR
        where comp_vectype is VECTOR_BOOLEAN_TYPE_P, use
        BIT_{NOT,XOR,AND,IOR}_EXPR on the comparison operands instead of
        {EQ,NE,GE,GT,LE,LT}_EXPR directly inside of VEC_COND_EXPR.  Formatting
        fixes.

2017-01-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * tree-ssa-address.c (gen_addr_rtx): Don't handle index if it
        is const0_rtx.

2017-01-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78997
        * tree-vect-slp.c (vect_mask_constant_operand_p): Handle SSA
        name condition properly.

2017-01-09  Richard Biener  <rguenther@suse.de>

        PR debug/79000
        * dwarf2out.c (is_cxx): New overload with context.
        (is_naming_typedef_decl): Use it.

2017-01-08  Sandra Loosemore  <sandra@codesourcery.com>

        * invoke.texi (Option Summary): Correct spacing in option lists
        and add line breaks to fix over-long lines.

2017-01-08  Sandra Loosemore  <sandra@codesourcery.com>

        PR middle-end/17660

        * extend.texi (Common Variable Attributes): Add xref to GCC
        Internals manual to explain mode attribute keywords.

2017-01-08  Sandra Loosemore  <sandra@codesourcery.com>

        PR other/16519
        * doc/invoke.texi (Option Summary): Move -pthread to Linker Options
        and Preprocessor Options.
        (Options for Linking): Document -pthread here....
        (RS/6000 and PowerPC Options): ...not here.
        (Solaris 2 Options): ...or here.
        * doc/cppopts.texi: Document -pthread.

2017-01-08  Martin Sebor  <msebor@redhat.com>

        PR middle-end/77708
        * doc/invoke.texi (Warning Options): Document -Wformat-truncation.
        * gimple-ssa-sprintf.c (call_info::reval_used, call_info::warnopt):
        New member functions.
        (format_directive): Used them.
        (add_bytes): Same.
        (pass_sprintf_length::handle_gimple_call): Same.
        * graphite-sese-to-poly.c (tree_int_to_gmp): Increase buffer size
        to avoid truncation for any argument.
        (extract_affine_mul): Same.
        * tree.c (get_file_function_name): Same.

2017-01-01  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/77484
        * predict.def (PRED_INDIR_CALL): Set to 86.

2017-01-07  Sandra Loosemore  <sandra@codesourcery.com>

        PR preprocessor/54124
        * doc/cppopts.texi: Reformat -d subtable to list the full name
        of the options.  Add cross-reference to the docs for the general
        compiler -d options.
        * doc/invoke.texi (Developer Options): Add cross-reference to the
        preprocessor-specific -d option documentation.

2017-01-07  Sandra Loosemore  <sandra@codesourcery.com>

        PR preprocessor/13498
        * doc/cpp.texi (Search Path): Rewrite to remove obsolete and
        redudant material, and reflect new command-line options.
        (System Headers): Likewise.

2017-01-07  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/cppdiropts.texi: Merge documentation of -I, -iquote,
        -isystem, and -idirafter.  Copy-edit.
        * doc/cppopts.texi: Copy-edit.  Remove contradiction about
        default for -ftrack-macro-expansion.  Delete obsolete and
        badly-formatted implementation details about -fdebug-cpp output.
        * doc/cppwarnopts.texi: Copy-edit.

2017-01-07  David Malcolm  <dmalcolm@redhat.com>

        PR c++/72803
        * input.c (selftest::test_accessing_ordinary_linemaps): Verify
        that the transition from a max line width >= 1<<10 to narrower
        lines works correctly.

2017-01-07  Alexandre Oliva  <aoliva@redhat.com>

        * doc/options.texi (PerFunction): New.
        * opt-functions.awk (switch_flags): Map both Optimization and
        PerFunction to CL_OPTIMIZATION.
        * opth-gen.awk: Test for PerFunction flag along with
        Optimization.
        * optc-save-gen.awk: Likewise.  Introduce var_opt_hash and set
        it only when the latter is present.  Skip those that don't in
        the hash function generator.
        * common.opt (fvar-tracking): Mark as PerFunction instead of
        Optimization.
        (fvar-tracking-assignments): Likewise.
        (fvar-tracking-assignments-toggle): Likewise.
        (fvar-tracking-uninit): Likewise.

2017-01-07  Jakub Jelinek  <jakub@redhat.com>

        PR translation/79018
        * params.def (PARAM_MAX_STORES_TO_MERGE): Add missing space between
        the and store.

2017-01-06  Mikael Pettersson  <mikpelinux@gmail.com>

        PR target/57583
        * config/m68k/m68k.opt (LONG_JUMP_TABLE_OFFSETS): New option.
        * config/m68k/linux.h (ASM_RETURN_CASE_JUMP): Handle
        TARGET_LONG_JUMP_TABLE_OFFSETS.
        * config/m68k/m68kelf.h (ASM_RETURN_CASE_JUMP): Likewise.
        * config/m68k/netbsd-elf.h (ASM_RETURN_CASE_JUMP): Likewise.
        * config/m68k/m68k.h (CASE_VECTOR_MODE): Likewise.
        (ASM_OUTPUT_ADDR_DIFF_ELF): Likewise.
        * config/m68k/m68k.md (tablejump expander): Likewise.
        (*tablejump_pcrel_hi): Renamed from unnamed insn, reject
        TARGET_LONG_JUMP_TABLE_OFFSETS.
        (*tablejump_pcrel_si): New insn, handle TARGET_LONG_JUMP_TABLE_OFFSETS.
        * doc/invoke.texi (M68K options): Add -mlong-jump-table-offsets.

2017-01-06  Edgar E. Iglesias <edgar.iglesias@xilinx.com>
            David Holsgrove <david.holsgrove@xilinx.com>

        * common/config/microblaze/microblaze-common.c
        (TARGET_EXCEPT_UNWIND_INFO): Remove.
        * config/microblaze/microblaze-protos.h (microblaze_eh_return):
        New prototype.
        * config/microblaze/microblaze.c (microblaze_must_save_register)
        (microblaze_expand_epilogue, microblaze_return_addr): Handle
        calls_eh_return.
        (microblaze_eh_return): New function.
        * config/microblaze/microblaze.h (RETURN_ADDR_OFFSET)
        (EH_RETURN_DATA_REGNO, MB_EH_STACKADJ_REGNUM)
        (EH_RETURN_STACKADJ_RTX, ASM_PREFERRED_EH_DATA_FORMAT): New macros.
        * config/microblaze/microblaze.md (eh_return): New pattern.

2017-01-06  Jakub Jelinek  <jakub@redhat.com>

        * system.h (GCC_DIAGNOSTIC_PUSH_IGNORED, GCC_DIAGNOSTIC_POP,
        GCC_DIAGNOSTIC_STRINGIFY): Define.

        * read-rtl.c (rtx_reader::read_rtx_code): Avoid -Wsign-compare warning.

2017-01-06  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * config/arm/arm.md (<mcrr>): New.
        (<mrrc>): New.
        * config/arm/arm.c (arm_arch5te): New.
        (arm_option_override): Set arm_arch5te.
        (arm_coproc_builtin_available): Add support for mcrr, mcrr2, mrrc
        and mrrc2.
        * config/arm/arm-builtins.c (MCRR_QUALIFIERS): Define to...
        (arm_mcrr_qualifiers): ... this. New.
        (MRRC_QUALIFIERS): Define to...
        (arm_mrrc_qualifiers): ... this. New.
        * config/arm/arm_acle.h (__arm_mcrr, __arm_mcrr2, __arm_mrrc,
        __arm_mrrc2): New.
        * config/arm/arm_acle_builtins.def (mcrr, mcrr2, mrrc, mrrc2): New.
        * config/arm/iterators.md (MCRRI, mcrr, MCRR): New.
        (MRRCI, mrrc, MRRC): New.
        * config/arm/unspecs.md (VUNSPEC_MCRR, VUNSPEC_MCRR2, VUNSPEC_MRRC,
        VUNSPEC_MRRC2): New.

2017-01-06  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * config/arm/arm.md (<mcr>): New.
        (<mrc>): New.
        * config/arm/arm.c (arm_coproc_builtin_available): Add
        support for mcr, mrc, mcr2 and mrc2.
        * config/arm/arm-builtins.c (MCR_QUALIFIERS): Define to...
        (arm_mcr_qualifiers): ... this. New.
        (MRC_QUALIFIERS): Define to ...
        (arm_mrc_qualifiers): ... this. New.
        (MCR_QUALIFIERS): Define to ...
        (arm_mcr_qualifiers): ... this. New.
        * config/arm/arm_acle.h (__arm_mcr, __arm_mrc, __arm_mcr2,
        __arm_mrc2): New.
        * config/arm/arm_acle_builtins.def (mcr, mcr2, mrc, mrc2): New.
        * config/arm/iterators.md (MCRI, mcr, MCR, MRCI, mrc, MRC): New.
        * config/arm/unspecs.md (VUNSPEC_MCR, VUNSPEC_MCR2, VUNSPEC_MRC,
        VUNSPEC_MRC2): New.

2017-01-06  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * config/arm/arm.md (*ldc): New.
        (*stc): New.
        (<ldc>): New.
        (<stc>): New.
        * config/arm/arm.c (arm_coproc_builtin_available): Add
        support for ldc,ldcl,stc,stcl,ldc2,ldc2l,stc2 and stc2l.
        (arm_coproc_ldc_stc_legitimate_address): New.
        * config/arm/arm-builtins.c (arm_type_qualifiers): Add
        'qualifier_const_pointer'.
        (LDC_QUALIFIERS): Define to...
        (arm_ldc_qualifiers): ... this. New.
        (STC_QUALIFIERS): Define to...
        (arm_stc_qualifiers): ... this. New.
        * config/arm/arm-protos.h
        (arm_coproc_ldc_stc_legitimate_address): New.
        * config/arm/arm_acle.h (__arm_ldc, __arm_ldcl, __arm_stc,
        __arm_stcl, __arm_ldc2, __arm_ldc2l, __arm_stc2, __arm_stc2l): New.
        * config/arm/arm_acle_builtins.def (ldc, ldc2, ldcl, ldc2l, stc,
        stc2, stcl, stc2l): New.
        * config/arm/constraints.md (Uz): New.
        * config/arm/iterators.md (LDCI, STCI, ldc, stc, LDC STC): New.
        * config/arm/unspecs.md (VUNSPEC_LDC, VUNSPEC_LDC2, VUNSPEC_LDCL,
        VUNSPEC_LDC2L, VUNSPEC_STC, VUNSPEC_STC2, VUNSPEC_STCL,
        VUNSPEC_STC2L): New.

2017-01-06  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * config/arm/arm.md (<cdp>): New.
        * config/arm/arm.c (neon_const_bounds): Rename this ...
        (arm_const_bounds): ... this.
        (arm_coproc_builtin_available): New.
        * config/arm/arm-builtins.c (SIMD_MAX_BUILTIN_ARGS): Increase.
        (arm_type_qualifiers): Add 'qualifier_unsigned_immediate'.
        (CDP_QUALIFIERS): Define to...
        (arm_cdp_qualifiers): ... this. New.
        (void_UP): Define.
        (arm_expand_builtin_args): Add case for 6 arguments.
        * config/arm/arm-protos.h (neon_const_bounds): Rename this ...
        (arm_const_bounds): ... this.
        (arm_coproc_builtin_available): New.
        * config/arm/arm_acle.h (__arm_cdp): New.
        (__arm_cdp2): New.
        * config/arm/arm_acle_builtins.def (cdp): New.
        (cdp2): New.
        * config/arm/iterators.md (CDPI,CDP,cdp): New.
        * config/arm/neon.md: Rename all 'neon_const_bounds' to
        'arm_const_bounds'.
        * config/arm/types.md (coproc): New.
        * config/arm/unspecs.md (VUNSPEC_CDP, VUNSPEC_CDP2): New.
        * doc/extend.texi (ACLE): Add a mention of Coprocessor intrinsics.
        * doc/sourcebuild.texi (arm_coproc1_ok, arm_coproc2_ok,
        arm_coproc3_ok, arm_coproc4_ok): Document new effective targets.

2017-01-06  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * config/arm/arm-builtins.c (arm_unsigned_binop_qualifiers): New.
        (UBINOP_QUALIFIERS): New.
        (si_UP): Define.
        (acle_builtin_data): New. Change comment.
        (arm_builtins): Remove ARM_BUILTIN_CRC32B, ARM_BUILTIN_CRC32H,
        ARM_BUILTIN_CRC32W, ARM_BUILTIN_CRC32CB, ARM_BUILTIN_CRC32CH,
        ARM_BUILTIN_CRC32CW. Add ARM_BUILTIN_ACLE_BASE and include
        arm_acle_builtins.def.
        (ARM_BUILTIN_ACLE_PATTERN_START): Define.
        (arm_init_acle_builtins): New.
        (CRC32_BUILTIN): Remove.
        (bdesc_2arg): Remove entries for crc32b, crc32h, crc32w,
        crc32cb, crc32ch and crc32cw.
        (arm_init_crc32_builtins): Remove.
        (arm_init_builtins): Use arm_init_acle_builtins rather
        than arm_init_crc32_builtins.
        (arm_expand_acle_builtin): New.
        (arm_expand_builtin): Use 'arm_expand_acle_builtin'.
        * config/arm/arm_acle_builtins.def: New.

2017-01-06  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * config/arm/arm-builtins.c (neon_builtin_datum): Rename to ..
        (arm_builtin_datum): ... this.
        (arm_init_neon_builtin): Rename to ...
        (arm_init_builtin): ... this. Add a new parameters PREFIX
        and USE_SIG_IN_NAME.
        (arm_init_neon_builtins): Replace 'arm_init_neon_builtin' with
        'arm_init_builtin'. Replace type 'neon_builtin_datum' with
        'arm_builtin_datum'.
        (arm_init_vfp_builtins): Likewise.
        (builtin_arg): Rename enum's replacing 'NEON_ARG' with
        'ARG_BUILTIN' and add a 'ARG_BUILTIN_NEON_MEMORY.
        (arm_expand_neon_args): Rename to ...
        (arm_expand_builtin_args): ... this. Rename builtin_arg
        enum values and differentiate between ARG_BUILTIN_MEMORY
        and ARG_BUILTIN_NEON_MEMORY.
        (arm_expand_neon_builtin_1): Rename to ...
        (arm_expand_builtin_1): ... this. Rename builtin_arg enum
        values, arm_expand_builtin_args and add bool parameter NEON.
        (arm_expand_neon_builtin): Use arm_expand_builtin_1.
        (arm_expand_vfp_builtin): Likewise.
        (NEON_MAX_BUILTIN_ARGS): Remove, it was unused.

2017-01-01  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/77484
        * predict.def (PRED_POLYMORPHIC_CALL): Set to 59.
        * predict.c (tree_estimate_probability_bb): Reverse direction of
        polymorphic call predictor.

2017-01-06  David Malcolm  <dmalcolm@redhat.com>

        * passes.c (execute_one_pass): Split out pass-skipping logic into...
        (determine_pass_name_match): ...this new function and...
        (should_skip_pass_p): ...this new function.

2017-01-06  Nathan Sidwell  <nathan@acm.org>

        * ipa-visibility.c (function_and_variable_visibility): Reformat
        comments and long lines.  Remove extrneous if.
        * symtab.c (symtab_node::make_decl_local): Fix code format.
        (symtab_node::set_section_for_node): Fix comment typo.

2017-01-06  Martin Liska  <mliska@suse.cz>

        PR bootstrap/79003
        * lra-constraints.c: Rename invariant to lra_invariant.
        * predict.c (set_even_probabilities): Initialize e to NULL.

2017-01-05  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/78910
        * gimple-ssa-sprintf.c (tree_digits): Add an argument.
        (format_integer): Correct off-by-one error in the handling
        of precision with negative numbers in signed conversions..

2017-01-05  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/invoke.texi (C Dialect Options): Adjust -fsso-struct entry.

2017-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/71016
        * tree-ssa-phiopt.c (tree_ssa_phiopt_worker): Pass cond_stmt to
        factor_out_conditional_conversion.  Formatting fix.
        (factor_out_conditional_conversion): Add cond_stmt argument.
        If arg1 is INTEGER_CST, punt if new_arg0 is not any operand of
        cond_stmt and if arg0_def_stmt is not the only stmt in its bb.
        Formatting fix.

2017-01-05  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (OBJS): Add read-md.o, read-rtl.o,
        read-rtl-function.o, and selftest-rtl.o.
        * config/aarch64/aarch64.c: Include selftest.h and selftest-rtl.h.
        (selftest::aarch64_test_loading_full_dump): New function.
        (selftest::aarch64_run_selftests): New function.
        (TARGET_RUN_TARGET_SELFTESTS): Wire it up to
        selftest::aarch64_run_selftests.
        * config/i386/i386.c
        (selftest::ix86_test_loading_dump_fragment_1): New function.
        (selftest::ix86_test_loading_call_insn): New function.
        (selftest::ix86_test_loading_full_dump): New function.
        (selftest::ix86_test_loading_unspec): New function.
        (selftest::ix86_run_selftests): Call the new functions.
        * emit-rtl.c (maybe_set_max_label_num): New function.
        * emit-rtl.h (maybe_set_max_label_num): New decl.
        * function.c (instantiate_decls): Guard call to
        instantiate_decls_1 with if (DECL_INITIAL (fndecl)).
        * function-tests.c (selftest::verify_three_block_rtl_cfg): Remove
        "static".
        * gensupport.c (gen_reader::gen_reader): Pass "false"
        for new "compact" param of rtx_reader.
        * print-rtl.c (rtx_writer::print_rtx_operand): Print "(nil)"
        rather than an empty string for NULL strings.
        * read-md.c: Potentially include config.h rather than bconfig.h.
        Wrap include of errors.h with #ifdef GENERATOR_FILE.
        (have_error): New global, copied from errors.c.
        (md_reader::read_name): Rename to...
        (md_reader::read_name_1): ...this, adding "out_loc" param,
        and converting "missing name or number" to returning false, rather
        than failing.
        (md_reader::read_name): Reimplement in terms of read_name_1.
        (md_reader::read_name_or_nil): New function.
        (md_reader::read_string): Handle "(nil)" by returning NULL.
        (md_reader::md_reader): Add new param "compact".
        (md_reader::read_md_files): Wrap with #ifdef GENERATOR_FILE.
        (md_reader::read_file): New method.
        * read-md.h (md_reader::md_reader): Add new param "compact".
        (md_reader::read_file): New method.
        (md_reader::is_compact): New accessor.
        (md_reader::read_name): Convert return type from void to file_location.
        (md_reader::read_name_or_nil): New decl.
        (md_reader::read_name_1): New decl.
        (md_reader::m_compact): New field.
        (noop_reader::noop_reader): Pass "false" for new "compact" param
        of rtx_reader.
        (rtx_reader::rtx_reader): Add new "compact" param.
        (rtx_reader::read_rtx_operand): Make virtual and convert return
        type from void to rtx.
        (rtx_reader::read_until): New decl.
        (rtx_reader::handle_any_trailing_information): New virtual function.
        (rtx_reader::postprocess): New virtual function.
        (rtx_reader::finalize_string): New virtual function.
        (rtx_reader::m_in_call_function_usage): New field.
        (rtx_reader::m_reuse_rtx_by_id): New field.
        * read-rtl-function.c: New file.
        * selftest-rtl.c (selftest::assert_rtx_ptr_eq_at): New function.
        * selftest-rtl.h (ASSERT_RTX_PTR_EQ): New macro.
        (selftest::verify_three_block_rtl_cfg): New decl.
        * read-rtl-function.h: New file.
        * read-rtl.c: Potentially include config.h rather than bconfig.h.
        For host, include function.h, memmodel.h, and emit-rtl.h.
        (one_time_initialization): New function.
        (struct compact_insn_name): New struct.
        (compact_insn_names): New array.
        (find_code): Handle insn codes in compact dumps.
        (apply_subst_iterator): Wrap with #ifdef GENERATOR_FILE.
        (bind_subst_iter_and_attr): Likewise.
        (add_condition_to_string): Likewise.
        (add_condition_to_rtx): Likewise.
        (apply_attribute_uses): Likewise.
        (add_current_iterators): Likewise.
        (apply_iterators): Likewise.
        (initialize_iterators): Guard usage of apply_subst_iterator with
        #ifdef GENERATOR_FILE.
        (read_conditions): Wrap with #ifdef GENERATOR_FILE.
        (md_reader::read_mapping): Likewise.
        (add_define_attr_for_define_subst): Likewise.
        (add_define_subst_attr): Likewise.
        (read_subst_mapping): Likewise.
        (check_code_iterator): Likewise.
        (rtx_reader::read_rtx): Likewise.  Move one-time initialization
        logic to...
        (one_time_initialization): New function.
        (rtx_reader::read_until): New method.
        (read_flags): New function.
        (parse_reg_note_name): New function.
        (rtx_reader::read_rtx_code): Initialize "iterator" to NULL.
        Handle reuse_rtx ids.
        Wrap iterator lookup within #ifdef GENERATOR_FILE.
        Add parsing support for RTL dumps, mirroring the special-cases in
        print_rtx, by calling read_flags, reading REG_NOTE names, INSN_UID
        values, and calling handle_any_trailing_information.
        (rtx_reader::read_rtx_operand): Convert return type from void
        to rtx, returning return_rtx.  Handle case 'e'.  Call
        finalize_string on XSTR and XTMPL fields.
        (rtx_reader::read_nested_rtx):  Handle dumps in which trailing
         "(nil)" values were omitted.  Call the postprocess vfunc on the
        return_rtx.
        (rtx_reader::rtx_reader): Add new "compact" param and pass to base
        class ctor.  Initialize m_in_call_function_usage.  Call
        one_time_initialization.
        * rtl-tests.c (selftest::test_uncond_jump): Call
        set_new_first_and_last_insn.
        * rtl.h (read_rtx): Wrap decl with #ifdef GENERATOR_FILE.
        * selftest-rtl.c: New file.
        * selftest-rtl.h (class selftest::rtl_dump_test): New class.
        (selftest::get_insn_by_uid): New decl.
        * selftest-run-tests.c (selftest::run_tests): Call
        read_rtl_function_c_tests.
        * selftest.h  (selftest::read_rtl_function_c_tests): New decl.
        * tree-dfa.c (ssa_default_def): Return NULL_TREE for rtl function
        dumps.

2017-01-05  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*testqi_ext_3): No need to handle memory
        operands in a special way.  Assert that pos+len <= mode precision.

2017-01-05  Jakub Jelinek  <jakub@redhat.com>

        * common.opt (fvect-cost-model): Remove RejectNegative flag, use
        3 argument Alias with unlimited for the negative form.
        (fno-vect-cost-model): Removed.

2017-01-05  Martin Liska  <mliska@suse.cz>

        * hsa-gen.c (gen_hsa_divmod): New function.
        (gen_hsa_insn_for_internal_fn_call): Use the function for IFN_DIVMOD.

2017-01-05  Martin Liska  <mliska@suse.cz>

        PR pch/78970
        * gcc.c (lookup_compiler): Reject '-' filename for a precompiled
        header.

2017-01-05  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_expand_setmem): Unroll the loop for
        small constant length operands.

2017-01-05  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_expand_setmem): Avoid overlapping bytes
        between loop iterations.

2017-01-05  Martin Liska  <mliska@suse.cz>

        PR sanitizer/78815
        * gimplify.c (gimplify_decl_expr): Compare to
        asan_poisoned_variables instread of checking flags.
        (gimplify_target_expr): Likewise.
        (gimplify_expr): Likewise.
        (gimplify_function_tree): Conditionally initialize
        asan_poisoned_variables.

2017-01-04  Jeff Law  <law@redhat.com>

        PR tree-optimizatin/78812
        * rtl.h (contains_mem_rtx_p): Prototype.
        * ifcvt.c (containts_mem_rtx_p): Move from here to...
        * rtlanal.c (contains_mem_rtx_p): Here and remove static linkage.
        * gcse.c (prune_expressions): Use contains_mem_rtx_p to discover
        and prune MEMs that are not at the toplevel of a SET_SRC rtx.  Look
        through ZERO_EXTEND and SIGN_EXTEND when trying to avoid pruning MEMs.

2017-01-04  Alexandre Oliva  <aoliva@redhat.com>

        * input.c (assert_char_at_range): Default-initialize actual_range.

2017-01-04  Alexandre Oliva  <aoliva@redhat.com>

        * df-scan.c (df_ref_create_structure): Make regno unsigned,
        to match the caller.

2017-01-04  Alexandre Oliva  <aoliva@redhat.com>

        * cfgexpand.c (expand_gimple_basic_block): Disregard debug
        insns after final jump in test to emit dummy move.

2017-01-04  Alexandre Oliva  <aoliva@redhat.com>

        * gimple-iterator.h (gsi_one_nondebug_before_end_p): New.
        * tree-eh.c (cleanup_empty_eh): Skip more debug stmts.

2017-01-04  Alexandre Oliva  <aoliva@redhat.com>

        * multiple_target.c (create_dispatcher_calls): Init e_next.
        * tree-ssa-loop-split.c (split_loop): Init border.
        * tree-vect-loop.c (vect_determine_vectorization_factor): Init
        scalar_type.

2017-01-04  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/71977
        PR target/70568
        PR target/78823
        * config/rs6000/predicates.md (sf_subreg_operand): New predicate.
        (altivec_register_operand): Do not return true if the operand
        contains a SUBREG mixing SImode and SFmode.
        (vsx_register_operand): Likewise.
        (vsx_reg_sfsubreg_ok): New predicate.
        (vfloat_operand): Do not return true if the operand contains a
        SUBREG mixing SImode and SFmode.
        (vint_operand): Likewise.
        (vlogical_operand): Likewise.
        (gpc_reg_operand): Likewise.
        (int_reg_operand): Likewise.
        * config/rs6000/rs6000-protos.h (valid_sf_si_move): Add declaration.
        * config/rs6000/rs6000.c (valid_sf_si_move): New function to
        determine if a MOVSI or MOVSF operation contains SUBREGs that mix
        SImode and SFmode.
        (rs6000_emit_move_si_sf_subreg): New helper function.
        (rs6000_emit_move): Call rs6000_emit_move_si_sf_subreg to possbily
        fixup SUBREGs involving SImode and SFmode.
        * config/rs6000/vsx.md (SFBOOL_*): New constants that are operand
        numbers for the new peephole2 optimization.
        (peephole2 for SFmode unions): New peephole2 to optimize cases in
        the GLIBC math library that do AND/IOR/XOR operations on single
        precision floating point.
        * config/rs6000/rs6000.h (TARGET_NO_SF_SUBREG): New internal
        target macros to say whether we need to avoid SUBREGs mixing
        SImode and SFmode.
        (TARGET_ALLOW_SF_SUBREG): Likewise.
        * config/rs6000/rs6000.md (UNSPEC_SF_FROM_SI): New unspecs.
        (UNSPEC_SI_FROM_SF): Likewise.
        (iorxor): Change spacing.
        (and_ior_xor): New iterator for AND, IOR, and XOR.
        (movsi_from_sf): New insns for SImode/SFmode SUBREG support.
        (movdi_from_sf_zero_ext): Likewise.
        (mov<mode>_hardfloat, FMOVE32 iterator): Use register_operand
        instead of gpc_reg_operand.  Add SImode/SFmode SUBREG support.
        (movsf_from_si): New insn for SImode/SFmode SUBREG support.
        (fma<mode>4): Use gpc_reg_operand instead of register_operand.
        (fms<mode>4): Likewise.
        (fnma<mode>4): Likewise.
        (fnms<mode>4): Likewise.
        (nfma<mode>4): Likewise.
        (nfms<mode>4): Likewise.

2017-01-04  Marek Polacek  <polacek@redhat.com>

        PR c++/64767
        * doc/invoke.texi: Document -Wpointer-compare.

2017-01-04  Jakub Jelinek  <jakub@redhat.com>

        * optc-gen.awk: Emit #error for -W*/-f*/-m* Enum without
        RejectNegative.

        * dwarf2out.c (output_loc_list): Don't throw away 64K+ location
        descriptions for -gdwarf-5 and emit them as uleb128 instead of
        2-byte data.

2017-01-04  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        PR target/78056
        * doc/sourcebuild.texi (PowerPC-specific attributes): Add
        documentation of the powerpc_popcntb_ok attribute.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Add
        code to issue warning messages if a requested CPU configuration is
        not supported by the binary (assembler and loader) toolchain.
        (spe_init_builtins): Add two assertions to prevent ICE if attempt is
        made to define a built-in function that has been disabled.
        (paired_init_builtins): Add assertion to prevent ICE if attempt is
        made to define a built-in function that has been disabled.
        (altivec_init_builtins): Add comment explaining why definition
        of the DST built-in functions is not preceded by an assertion
        check.  Add assertions to prevent ICE if attempts are made to
        define an altivec predicate or an abs* built-in function that has
        been disabled.
        (htm_init_builtins): Add comment explaining why definition of the
        htm built-in functions is not preceded by an assertion check.

2017-01-04  Jeff Law  <law@redhat.com>

        PR tree-optimizatin/67955
        * tree-ssa-alias.c (same_addr_size_stores_p): Check offsets first.
        Allow any SSA_VAR_P as the base objects.  Use integer_zerop.  Verify
        the points-to solution does not include pt_null.  Use DECL_PT_UID
        unconditionally.

2017-01-04  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (HI/SImode test with imm to QImode splitters):
        Use gen_int_mode instead of gen_lopwart for const_int operands.

2017-01-04  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/71563
        * match.pd: Simplify X << Y into X if Y is known to be 0 or
        out of range value - has low bits known to be zero.

2017-01-04  Alan Modra  <amodra@gmail.com>

        * Makefile.in (aclocal_deps): Update and order as per aclocal.m4.
        * configure: Regenerate.
        * config.in: Regenerate.

2017-01-04  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/77569
        * input.c (ebcdic_execution_charset::on_error): Don't use strstr for
        a substring of the message, but strcmp with the whole message.  Ifdef
        ENABLE_NLS, translate the message first using dgettext.

2017-01-03  Jeff Law  <law@redhat.com>

        PR tree-optimizatin/78856
        * tree-ssa-threadupdate.c: Include tree-vectorizer.h.
        (mark_threaded_blocks): Remove code to truncate thread paths that
        cross multiple loop headers.  Instead invalidate the cached loop
        iteration information and handle case of a thread path walking
        into an irreducible region.

2017-01-03  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/78900
        * config/rs6000/rs6000.c (rs6000_split_signbit): Change some
        assertions.  Add support for doing the signbit if the IEEE 128-bit
        floating point value is in a GPR.
        * config/rs6000/rs6000.md (Fsignbit): Delete.
        (signbit<mode>2_dm): Delete using <Fsignbit> and just use "wa".
        Update the length attribute if the value is in a GPR.
        (signbit<mode>2_dm_<su>ext): Add combiner pattern to eliminate
        the sign or zero extension instruction, since the value is always 0/1.
        (signbit<mode>2_dm2): Delete using <Fsignbit>.

        PR target/78953
        * config/rs6000/vsx.md (vsx_extract_<mode>_store_p9): If we are
        extracting SImode to a GPR register so that we can generate a
        store, limit the vector to be in a traditional Altivec register
        for the vextuwrx instruction.

2017-01-03  Ian Lance Taylor  <iant@google.com>

        * godump.c (go_format_type): Treat ENUMERAL_TYPE like INTEGER_TYPE.

2017-01-03  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/78696
        * gimple-ssa-sprintf.c (format_floating): Correct handling of
        precision.  Use MPFR for %f for greater fidelity.  Correct handling
        of %g.
        (pass_sprintf_length::compute_format_length): Set width and precision
        specified by asrerisk to void_node for vararg functions.
        (try_substitute_return_value): Adjust dump output.

2017-01-03  David Edelsohn  <dje.gcc@gmail.com>

        * doc/invoke.texi (RS6000 options): LRA is enabled by default.

2017-01-03  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/invoke.texi (SPARC options): Document -mlra as the default.
        * config/sparc/sparc.c (sparc_option_override): Force LRA unless
        -mlra/-mno-lra was passed to the compiler.

2017-01-03  James Cowgill  <James.Cowgill@imgtec.com>

        PR rtl-optimization/65618
        * emit-rtl.c (try_split): Move initialization of "before" and
        "after" to just before the call to emit_insn_after_setloc.

2017-01-03  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/md.texi (Standard Names): Remove reference to Java frontend.

2017-01-03  Pierre-Marie de Rodat  <derodat@adacore.com>

        * dwarf2out.c (gen_enumeration_type_die): When
        -gno-strict-dwarf, add a DW_AT_encoding attribute.

2017-01-03  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/78965
        * gimple-ssa-sprintf.c (pass_sprintf_length::compute_format_length):
        Change first argument from const call_info & to call_info &.  For %n
        set info.nowrite to false.

        PR middle-end/78901
        * gimple-ssa-sprintf.c (try_substitute_return_value): Don't change
        possibly throwing calls.

        * genmatch.c (dt_node::gen_kids_1): If generic_exprs include SSA_NAME
        and exprs_len || fns_len, emit the code for SSA_NAME next to the exprs
        and fns handling, rather than in a separate case SSA_NAME.

2017-01-02  Jeff Law  <law@redhat.com>

        * config/darwin-driver.c (darwin_driver_init): Const-correctness
        fixes for first_period and second_period variables.

2017-01-02  Uros Bizjak  <ubizjak@gmail.com>

        PR target/78967
        * config/i386/i386.md (UNSPEC_NOREX_MEM): New unspec.
        (*insvqi_1): New insn pattern.
        (*insvqi_1_mem_rex64): Ditto.
        (*insvqi_2): Ditto.
        (*insvqi_3): Rename from *insvqi.

        (*extzvqi_mem_rex64): Add UNSPEC_NOREX_MEM tag.

2017-01-02  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/cfg.texi (Edges): Remove reference to Java.
        (Maintaining the CFG): Ditto.

2017-01-01  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/77674
        * symtab.c (symtab_node::binds_to_current_def_p): Fix handling of
        transparent aliases.

2017-01-01  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/77484
        * predict.def (PRED_CALL): Update hitrate.
        (PRED_INDIR_CALL, PRED_POLYMORPHIC_CALL): New predictors.
        * predict.c (tree_estimate_probability_bb): Split CALL predictor
        into direct/indirect/polymorphic variants.

2017-01-01  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

        * gcc.c (process_command): Update copyright notice dates.
        * gcov-dump.c (print_version): Ditto.
        * gcov.c (print_version): Ditto.
        * gcov-tool.c (print_version): Ditto.
        * gengtype.c (create_file): Ditto.
        * doc/cpp.texi: Bump @copying's copyright year.
        * doc/cppinternals.texi: Ditto.
        * doc/gcc.texi: Ditto.
        * doc/gccint.texi: Ditto.
        * doc/gcov.texi: Ditto.
        * doc/install.texi: Ditto.
        * doc/invoke.texi: Ditto.
\f
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