Fix folding of memcmp("a", "a", 2) (PR

[official-gcc.git] / gcc / ChangeLog

2016-11-09  Martin Liska  <mliska@suse.cz>

        * fold-const-call.c (fold_const_call): Fix the folding.

2016-11-09  Richard Biener  <rguenther@suse.de>

        * common.opt (flag_evaluation_order): Remove.
        * expr.c (expand_operands): Remove code guarded by
        flag_evaluation_order.
        * fold-const.c (reorder_operands_p): Remove, it always returns
        true.
        (negate_expr_p): Remove calls to reorder_operands_p.
        (fold_negate_expr): Likewise.
        (tree_swap_operands_p): Likewise.
        (fold_binary_loc): Likewise.

2016-11-09  Andreas Schwab  <schwab@suse.de>

        PR target/78254
        * config/m68k/m68k.md: Reject out-of-range bit pos in bit-fields
        insns operating on a register.

2016-11-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78007
        * tree-vect-stmts.c (vectorizable_bswap): New function.
        (vectorizable_call): Call vectorizable_bswap for
        BUILT_IN_BSWAP{16,32,64} if arguments are not promoted.

2016-11-09  Richard Biener  <rguenther@suse.de>

        * tree-vect-data-refs.c (vect_compute_data_ref_alignment):
        Look at the DR_BASE_ADDRESS object for forcing alignment.

2016-11-09  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * ipa-cp.c (ipa_get_jf_pass_through_result): Handle unary expressions.
        (propagate_vr_accross_jump_function): Likewise.
        * ipa-prop.c (ipa_set_jf_unary_pass_through): New.
        (load_from_param_1): New.
        (load_from_unmodified_param): Factor common part into load_from_param_1.
        (load_from_param): New.
        (compute_complex_assign_jump_func): Handle unary expressions.
        (ipa_write_jump_function): Likewise.
        (ipa_read_jump_function): Likewise.

2016-11-09  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR ipa/78121
        * ipa-cp.c (propagate_vr_accross_jump_function): Pass param type.
        Also fold constant passed as argument while computing value range.
        (propagate_constants_accross_call): Pass param type.
        * ipa-prop.c: export ipa_get_callee_param_type.
        * ipa-prop.h: export ipa_get_callee_param_type.

2016-11-09  Maxim Ostapenko  <m.ostapenko@samsung.com>

        * asan.h (asan_intercepted_p): Handle BUILT_IN_STRCSPN,
        BUILT_IN_STRPBRK, BUILT_IN_STRSPN and BUILT_IN_STRSTR.

2016-11-09  Maxim Ostapenko  <m.ostapenko@samsung.com>

        * asan.h (ASAN_STACK_MAGIC_PARTIAL): Remove.
        * asan.c (ASAN_STACK_MAGIC_PARTIAL): Replace with
        ASAN_STACK_MAGIC_MIDDLE.
        (asan_global_struct): Increase the size of fields.
        (asan_add_global): Add new field constructor.
        * sanitizer.def (__asan_version_mismatch_check_v6): Replace with
        __asan_version_mismatch_check_v8.

 2016-11-08  David Edelsohn  <dje.gcc@gmail.com>

        * dwarf2asm.c (USE_LINKONCE_INDIRECT): Test XCOFF_DEBUGGING_INFO
        at runtime.

2016-11-08  Uros Bizjak  <ubizjak@gmail.com>

        PR target/70799
        * config/i386/i386.c (dimode_scalar_to_vector_candidate_p):
        Handle ASHIFT and LSHIFTRT.
        (dimode_scalar_chain::compute_convert_gain): Ditto.
        (dimode_scalar_chain::convert_insn): Ditto.

2016-11-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * gimple-ssa-store-merging.c: Include selftest.h
        (verify_array_eq): New function.
        (verify_shift_bytes_in_array): Likewise.
        (verify_shift_bytes_in_array_right): Likewise.
        (verify_clear_bit_region): Likewise.
        (verify_clear_bit_region_be): Likewise.
        (store_merging_c_tests): Likewise.
        * selftest.h (store_merging_c_tests): Declare prototype.
        * selftest-run-tests.c (selftest::run_tests): Run
        store_merging_c_tests.

2016-11-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.opt (mold-rtx-costs): Delete.
        (mnew-generic-costs): Delete.
        * config/arm/arm-protos.h (struct tune_params): Delete rtx_costs field.
        * config/arm/arm.c (arm_rtx_costs_1): Delete.
        (arm_size_rtx_costs): Likewise.
        (arm_slowmul_rtx_costs): Likewise.
        (arm_fastmul_rtx_costs): Likewise.
        (arm_xscale_rtx_costs): Likewise.
        (arm_9e_rtx_costs): Likewise.
        (arm_slowmul_tune, arm_fastmul_tune, arm_strongarm_tune,
        arm_xscale_tune, arm_9e_tune, arm_v6t2_tune, arm_cortex_tune,
        arm_cortex_a8_tune, arm_cortex_a7_tune, arm_cortex_a15_tune,
        arm_cortex_a53_tune, arm_cortex_a57_tune, arm_cortex_a9_tune,
        arm_cortex_a12_tune, arm_v7m_tune, arm_v6m_tune, arm_fa726te_tune
        arm_cortex_a5_tune, arm_xgene1_tune, arm_marvell_pj4_tune,
        arm_cortex_a35_tune, arm_exynosm1_tune, arm_cortex_a73_tune,
        arm_cortex_m7_tune):
        Delete rtx_costs field.
        (arm_new_rtx_costs): Rename to...
        (arm_rtx_costs_internal): ... This.
        (arm_rtx_costs): Remove old way of doing rtx costs.

2016-11-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.c (arm_slowmul_tune): Use generic_extra_costs.
        (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_v6m_tune): Likewise.
        (arm_fa726te_tune): Likewise.

2016-11-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR tree-optimization/78234
        * gimple-ssa-store-merging.c (clear_bit_region): Fix off-by-one error
        in start != 0 case.

2016-11-08  Martin Liska  <mliska@suse.cz>

        PR testsuite/78242
        * dbgcnt.def: Add new debug counter asan_use_after_scope.
        * gimplify.c (gimplify_decl_expr): Do not sanitize vars
        with a value expr.  Do not add artificial variables to
        live_switch_vars.  Use the debug counter.
        (gimplify_target_expr): Use the debug counter.
        * internal-fn.def: Remove ECF_TM_PURE from ASAN_MARK builtin.
        * sanitizer.def: Set ATTR_NOTHROW_LEAF_LIST to
        BUILT_IN_ASAN_CLOBBER_N and BUILT_IN_ASAN_UNCLOBBER_N.

2016-11-08  Richard Biener  <rguenther@suse.de>

        * tree-vect-stmts.c (get_group_load_store_type): If the
        access is aligned do not trigger peeling for gaps.
        * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Do not
        force alignment of vars with DECL_USER_ALIGN.

2016-11-08  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/t-aarch64 (aarch64-c.o): Depend on TARGET_H.

2016-11-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78205
        * tree-vect-stmts.c (vectorizable_load): Move check whether
        we may run into gaps when BB vectorizing SLP permutations ...
        * tree-vect-slp.c (vect_supported_load_permutation_p): ...
        here where we can do a more precise check.

2016-11-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78224
        * tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds):
        Split the fallthru edge in case its successor may have PHIs.
        Do not free dominance info.

2016-11-07  Jakub Jelinek  <jakub@redhat.com>

        PR target/78229
        * config/i386/i386.c (ix86_gimple_fold_builtin): Do not adjust
        EH info even for bzhi and pdep/pext.

2016-11-07  Peter Bergner  <bergner@vnet.ibm.com>

        * config.gcc (powerpc*-*-*, rs6000*-*-*): Remove setting of
        INCLUDE_EXTRA_SPEC for Advance Toolchain builds.

2016-11-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (div<mode>3): Expand using rs6000_emit_swdiv
        if appropriate.
        * config/rs6000/vector.md (div<mode>3): Ditto.

2016-11-07  David Edelsohn  <dje.gcc@gmail.com>

        * configure.ac (.hidden): Change to conftest_s string. Provide string
        for AIX assembler.
        (gcc_cv_ld_hidden): Yes for AIX.
        * configure: Regenerate.

        * dwarf2asm.c (USE_LINKONCE_INDIRECT): Don't set for AIX (XCOFF).

        * config/rs6000/rs6000-protos.h (rs6000_asm_weaken_decl): Declare
        (rs6000_xcoff_asm_output_aligned_decl_common): Declare.
        * config/rs6000/xcoff.h (TARGET_ASM_GLOBALIZE_DECL_NAME): Define.
        (ASM_OUTPUT_ALIGNED_DECL_COMMON): Define.
        (ASM_OUTPUT_ALIGNED_COMMON): Delete.
        * config/rs6000/rs6000.c (rs6000_init_builtins): Change clog rename
        from #if to if.
        (rs6000_xcoff_visibility): New.
        (rs6000_xcoff_declare_function_name): Add visibility support.
        (rs6000_xcoff_asm_globalize_decl_name): New.
        (rs6000_xcoff_asm_output_aligned_decl_common): New.
        (rs6000_asm_weaken_decl): New.
        (rs6000_code_end): Disable HIDDEN_LINKONCE on XCOFF.
        config/rs6000/rs6000.h (ASM_WEAKEN_DECL): Change definition to
        reference function.

2016-11-07  Jack Howarth  <howarth.at.gcc@gmail.com>

        PR driver/78206
        * incpath.c: (remove_dup(): Also silently ignore EPERM.

2016-11-07  Martin Jambor  <mjambor@suse.cz>

        * tree.c (verify_type_variant): Use pointer comparison to check that
        TYPE_SIZE_UNIT match.

2016-11-07  Jakub Jelinek  <jakub@redhat.com>

        PR target/77834
        * dse.c (dse_step5): Call scan_reads even if just
        insn_info->frame_read.  Improve and fix dump file messages.

        PR target/78227
        * config/i386/i386.c (ix86_expand_sse_cmp): Force dest into
        cmp_mode argument even for -O0 if cmp_mode != mode and maskcmp.

2016-11-07  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR middle-end/35691
        * match.pd: Add following two patterns:
        (x == 0 & y == 0) -> (x | typeof(x)(y)) == 0.
        (x != 0 | y != 0) -> (x | typeof(x)(y)) != 0.

2016-11-07  Bernd Schmidt  <bschmidt@redhat.com>

        * emit-rtl.c (emit_copy_of_insn_after): Duplicate notes in order.
        * sel-sched-ir.c (create_copy_of_insn_rtx): Likewise.
        * rtl.h (duplicate_reg_notes): Declare.
        * rtlanal.c (duplicate_reg_note): New function.

        PR rtl-optimization/77309
        * combine.c (make_compound_operation): Allow EQ for IN_CODE, and
        don't assume an equality comparison for plain COMPARE.
        (simplify_comparison): Pass a more accurate code to
        make_compound_operation.

2016-11-07  Pat Haugen  <pthaugen@us.ibm.com>

        * target.def (compute_pressure_classes): New target hook.
        * doc/tm.texi.in: Document it.
        * doc/tm.texi: Regenerate.
        * ira.c (setup_pressure_classes): Call target hook if defined.

2016-11-07  David Malcolm  <dmalcolm@redhat.com>

        * print-rtl.c (rtx_writer::operand_has_default_value_p): New
        method.
        (rtx_writer::print_rtx): In compact mode, omit trailing operands
        that have the default values.
        * print-rtl.h (rtx_writer::operand_has_default_value_p): New
        method.
        * rtl-tests.c (selftest::test_dumping_insns): Remove empty
        label string from expected dump.
        (seltest::test_uncond_jump): Remove trailing "(nil)" for REG_NOTES
        from expected dump.

2016-11-07  Jakub Jelinek  <jakub@redhat.com>

        PR target/77834
        * alias.c (nonoverlapping_memrefs_p): If one decl is
        FUNCTION_DECL or LABEL_DECL and the other is not, return 1.

2016-11-07  Richard Biener  <rguenther@suse.de>

        PR target/78229
        * config/i386/i386.c (ix86_gimple_fold_builtin): Do not adjust
        EH info.

2016-11-07  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78218
        * gimple-ssa-store-merging.c
        (pass_store_merging::terminate_all_aliasing_chains):
        Drop unused argument, fix alias check to also consider uses.
        (pass_store_merging::execute): Adjust.

2016-11-07  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78228
        * tree-ssa-phiopt.c (abs_replacement): Avoid introducing
        undefined behavior.

2016-11-07  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/77822
        * config/aarch64/aarch64.md (*tb<optab><mode>1): Use
        aarch64_simd_shift_imm_<mode> predicate for operand 1.
        (<optab>, ANY_EXTRACT): Use tighter predicates on operands 2 and 3
        to restrict them to an appropriate range and add FAIL check if the
        region they specify is out of range.  Delete useless constraint
        strings.
        (*<optab><mode>, ANY_EXTRACT): Add appropriate predicates on operands
        2 and 3 to restrict their range and add pattern predicate.

2016-11-07  Martin Liska  <mliska@suse.cz>

        * asan.c (enum asan_check_flags): Move the enum to header file.
        (asan_init_shadow_ptr_types): Make type creation more generic.
        (shadow_mem_size): New function.
        (asan_emit_stack_protection): Use newly added ASAN_SHADOW_GRANULARITY.
        Rewritten stack unpoisoning code.
        (build_shadow_mem_access): Add new argument return_address.
        (instrument_derefs): Instrument local variables if use after scope
        sanitization is enabled.
        (asan_store_shadow_bytes): New function.
        (asan_expand_mark_ifn): Likewise.
        (asan_sanitize_stack_p): Moved from asan_sanitize_stack_p.
        * asan.h (enum asan_mark_flags): Moved here from asan.c
        (asan_protect_stack_decl): Protect all declaration that need
        to live in memory.
        (asan_sanitize_use_after_scope): New function.
        (asan_no_sanitize_address_p): Likewise.
        * cfgexpand.c (partition_stack_vars): Consider
        asan_sanitize_use_after_scope in condition.
        (expand_stack_vars): Likewise.
        * common.opt (-fsanitize-address-use-after-scope): New option.
        * doc/invoke.texi (use-after-scope-direct-emission-threshold):
        Explain the parameter.
        * flag-types.h (enum sanitize_code): Define SANITIZE_USE_AFTER_SCOPE.
        * gimplify.c (build_asan_poison_call_expr): New function.
        (asan_poison_variable): Likewise.
        (gimplify_bind_expr): Generate poisoning/unpoisoning for local
        variables that have address taken.
        (gimplify_decl_expr): Likewise.
        (gimplify_target_expr): Likewise for C++ temporaries.
        (sort_by_decl_uid): New function.
        (gimplify_expr): Unpoison all variables for a label we can jump
        from outside of a scope.
        (gimplify_switch_expr): Unpoison variables defined in the switch
        context.
        (gimplify_function_tree): Clear asan_poisoned_variables.
        (asan_poison_variables): New function.
        (warn_switch_unreachable_r): Handle IFN_ASAN_MARK.
        * internal-fn.c (expand_ASAN_MARK): New function.
        * internal-fn.def (ASAN_MARK): Declare.
        * opts.c (finish_options): Handle -fstack-reuse if
        -fsanitize-address-use-after-scope is enabled.
        (common_handle_option): Enable address sanitization if
        -fsanitize-address-use-after-scope is enabled.
        * params.def (PARAM_USE_AFTER_SCOPE_DIRECT_EMISSION_THRESHOLD):
        New parameter.
        * params.h: Likewise.
        * sancov.c (pass_sanopt::execute): Handle IFN_ASAN_MARK.
        * sanitizer.def: Define __asan_poison_stack_memory and
        __asan_unpoison_stack_memory functions.
        * asan.c (asan_mark_poison_p): New function.
        (transform_statements): Handle asan_mark_poison_p calls.
        * gimple.c (nonfreeing_call_p): Handle IFN_ASAN_MARK.

2016-11-07  Tamar Christina  <tamar.christina@arm.com>

        PR driver/78196
        * Makefile.in (SELFTEST_FLAGS): Added -o /dev/null.

2016-11-07  Martin Liska  <mliska@suse.cz>

        * tree-profile.c (gimple_gen_time_profiler): Set proper type
        to time_profiler_counter_ptr.

2016-11-07  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/37150
        * tree-vectorizer.h (vect_transform_slp_perm_load): Add n_perms
        parameter.
        * tree-vect-slp.c (vect_supported_load_permutation_p): Adjust.
        (vect_analyze_slp_cost_1): Account for the real number of
        permutations emitted and for dead loads.
        (vect_transform_slp_perm_load): Add n_perms parameter counting
        the number of emitted permutations.
        * tree-vect-stmts.c (vectorizable_load): Adjust.

2016-11-07  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78189
        * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Fix
        alignment computation.

2016-11-06  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * ipa-cp.c (ipcp_bits_lattice::meet_with): Remove unreachable code.

2016-11-05  Martin Sebor  <msebor@redhat.com>

        * doc/invoke.texi (Warning Options): Correct typos in -Walloca
        documentation.

2016-11-05  David Edelsohn  <dje.gcc@gmail.com>

        PR bootstrap/78188
        PR c++/71848
        * ipa-comdats.c (pass_ipa_comdats::gate): Require HAVE_COMDAT_GROUP.

2016-11-04  Jakub Jelinek  <jakub@redhat.com>

        PR target/77834
        * alias.c (nonoverlapping_memrefs_p): Return 0 if exprx or expry
        doesn't have rtl set.

2016-11-04  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (gimple-ssa.h): New #include.
        (TARGET_GIMPLE_FOLD_BUILTIN): Define as
        rs6000_gimple_fold_builtin.
        (rs6000_gimple_fold_builtin): New function.  Add handling for
        early expansion of vector addition builtins.

2016-11-04  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.h (copy_blkmode_from_reg): Delete.
        * expr.c (copy_blkmode_from_reg): Make static.

2016-11-04  Eric Botcazou  <ebotcazou@adacore.com>

        * defaults.h (LOAD_EXTEND_OP): Define if not already defined.
        * combine.c (LOAD_EXTEND_OP): Delete.
        (simplify_comparison): Fix comment about LOAD_EXTEND_OP.
        * cse.c (LOAD_EXTEND_OP): Delete.
        * fold-const.c (LOAD_EXTEND_OP): Likewise.
        * fwprop.c (free_load_extend): Remove #ifdef LOAD_EXTEND_OP/#endif.
        * postreload.c (LOAD_EXTEND_OP): Delete.
        * reload.c (push_reload): Remove #ifdef LOAD_EXTEND_OP/#endif.
        Convert conditional compilation based on WORD_REGISTER_OPERATIONS.
        (find_reloads): Likewise.
        * reload1.c (eliminate_regs_1): Likewise.
        * rtlanal.c (nonzero_bits1): Remove #ifdef LOAD_EXTEND_OP/#endif.
        (num_sign_bit_copies1): Likewise.

2016-11-04  David Malcolm  <dmalcolm@redhat.com>

        * config/i386/i386.c: Include "selftest.h" and "selftest-rtl.h".
        (selftest::ix86_test_dumping_hard_regs): New function.
        (selftest::ix86_run_selftests): New function.
        (TARGET_RUN_TARGET_SELFTESTS): When CHECKING_P, wire this up to
        selftest::ix86_run_selftests.
        * doc/tm.texi.in (TARGET_RUN_TARGET_SELFTESTS): New.
        * doc/tm.texi: Regenerate
        * selftest-rtl.h: New file.
        * rtl-tests.c: Include "selftest-rtl.h".
        (selftest::assert_rtl_dump_eq): Make non-static.
        (ASSERT_RTL_DUMP_EQ): Move to selftest-rtl.h.
        (selftest::test_dumping_regs): Update comment.
        * selftest-run-tests.c: Include "target.h".
        (selftest::run_tests): If non-NULL, call
        targetm.run_target_selftests.
        * target.def (run_target_selftests): New hook.

2016-11-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-arches.def (armv8-m.main+dsp): Set Cortex-M33 as
        representative core for this architecture.
        * config/arm/arm-cores.def (cortex-m33): Define new processor.
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/arm-tune.md: Likewise.
        * config/arm/bpabi.h (BE8_LINK_SPEC): Add Cortex-M33 to the list of
        valid -mcpu options.
        * doc/invoke.texi (ARM Options): Document new Cortex-M33 processor.

2016-11-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-arches.def (armv8-m.base): Set Cortex-M23 as
        representative core for this architecture.
        * config/arm/arm-cores.def (cortex-m23): Define new processor.
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/arm-tune.md: Likewise.
        * config/arm/arm.c (arm_v6m_tune): Add Cortex-M23 to the list of cores
        this tuning parameters apply to in the comment.
        * config/arm/bpabi.h (BE8_LINK_SPEC): Add Cortex-M23 to the list of
        valid -mcpu options.
        * doc/invoke.texi (ARM Options): Document new Cortex-M23 processor.

2016-11-04  Bin Cheng  <bin.cheng@arm.com>

        * fold-const.c (fold_cond_expr_with_comparison): Remove call
        to pedantic_non_lvalue_loc.  Remove useless code for lvalue
        where cond_expr can't be a lvalue.

2016-11-04  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_process_double_reg_moves): Use
        gen_dexcl_2op call.
        * config/arc/arc.md (movsi_insn): Disable unsupported move
        instructions for ARCv2 cores.
        (movdi): Use prepare_move_operands.
        (movsf, movdf): Use move_dest_operand predicate.
        * config/arc/constraints.md (Chs): Enable when barrel shifter is
        present.
        * config/arc/fpu.md (divsf3): Change to divsf3_fpu.
        * config/arc/fpx.md (dexcl_3op_peep2_insn): Dx data register is
        also a destination.
        (dexcl_3op_peep2_insn_nores): Likewise.
        * config/arc/arc.h (SHIFT_COUNT_TRUNCATED): Define to one.
        (LINK_COMMAND_SPEC): Remove.

2016-11-04  Richard Biener  <rguenther@suse.de>

        PR middle-end/78185
        * loop-invariant.c (find_exits): Record entering inner
        loops as possibly exiting to handle infinite sub-loops.
        * tree-ssa-loop-im.c: Include tree-ssa-loop-niter.h.
        (fill_always_executed_in_1): Honor infinite child loops.

2016-11-03  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/78192
        * config/rs6000/vsx.md (vsx_extract_<mode>_di): The element number
        has already been adjusted for endianness, so don't adjust it any
        further.

        PR target/77993
        * config/rs6000/rs6000.h (FLOAT128_IBM_P): Do not allow IFmode or
        ICmode unless we have standard PowerPC floating point.
        * config/rs6000/rs6000.md (FP iterator): Likewise.
        (FMOVE128 iterator): Likewise.

2016-11-03  Jakub Jelinek  <jakub@redhat.com>
            Alexandre Oliva  <aoliva@redhat.com>
            Jason Merrill  <jason@redhat.com>

        PR debug/28767
        PR debug/56974
        * langhooks.h (struct lang_hooks_for_types): Add type_dwarf_attribute
        langhook.
        * langhooks.c (lhd_type_dwarf_attribute): New function.
        * langhooks-def.h (lhd_type_dwarf_attribute): Declare.
        (LANG_HOOKS_TYPE_DWARF_ATTRIBUTE): Define.
        (LANG_HOOKS_FOR_TYPES_INITIALIZER): Add
        LANG_HOOKS_TYPE_DWARF_ATTRIBUTE.
        (check_qualified_type, check_aligned_type): Call it.
        * dwarf2out.c (modified_type_die): Don't use type_main_variant
        for FUNCTION_TYPE or METHOD_TYPE, instead walk over variants with
        check_base_type and check_lang_type.
        (gen_ptr_to_mbr_type_die): If lookup_type_die is already non-NULL,
        return early.  For pointer-to-data-member add DW_AT_use_location
        attribute.
        (gen_subroutine_type_die): Add DW_AT_{,rvalue_}reference attribute
        if needed.
        (gen_type_die_with_usage): Don't use type_main_variant
        for FUNCTION_TYPE or METHOD_TYPE, instead walk over variants with
        check_base_type and check_lang_type.  Formatting fixes. Call
        get_debug_type langhook.

2016-11-03  Jason Merrill  <jason@redhat.com>

        * tree.c (check_lang_type): New.
        (check_qualified_type): Use it.
        (check_aligned_type): Use it.
        * tree.h: Declare it.

2016-11-03  Richard Earnshaw  <rearnsha@arm.com>

        * config.gcc (arm-wrs-vxworks): Set target_cpu_cname.
        (arm*-freebsd*): Likewise.
        (arm*-*-netbsdelf*): Likewise.
        (arm*-*-linux*): Likewise.
        (arm*-*-uclinux*eabi*): Likewise.
        (arm*-*-phoenix*): Likewise.
        (arm*-*-eabi*, arm*-*-symbianelf*, arm*-*-rtems*): Likewise.
        (arm*-*-*): Don't clobber target_cpu_cname when --with-cpu is not
        specified.  Default to arm6 if target_cpu_cname is not set.
        * arm/arm.c (arm_option_override): Simplify logic.  Assert that the
        default cpu has been correctly configured.
        * arm/arm.h (TARGET_CPU_DEFAULT): Delete.
        (target_cpus): Delete TARGET_CPU_generic, add TARGET_CPU_num_cores.
        * arm/freebsd.h (SUBTARGET_CPU_DEFAULT): Delete.
        * arm/linux-eabi.h (SUBTARGET_CPU_DEFAULT): Delete.
        * arm/linux-elf.h (SUBTARGET_CPU_DEFAULT): Delete.
        * arm/symbian.h (SUBTARGET_CPU_DEFAULT): Delete.
        * arm/unknown-elf.h (SUBTARGET_CPU_DEFAULT): Delete.

2016-11-03  Jiong Wang  <jiong.wang@arm.com>

        * reg-notes.def (CFA_VAL_EXPRESSION): New entry.
        * dwarf2cfi.c (dwarf2out_frame_debug_cfa_val_expression): New function.
        (dwarf2out_frame_debug): Support REG_CFA_VAL_EXPRESSION.
        (output_cfa_loc): Support DW_CFA_val_expression.
        (output_cfa_loc_raw): Likewise.
        (output_cfi): Likewise.
        (output_cfi_directive): Likewise.
        * dwarf2out.c (dw_cfi_oprnd1_desc): Support DW_CFA_val_expression.
        (dw_cfi_oprnd2_desc): Likewise.
        (mem_loc_descriptor): Recognize new pattern generated for value
        expression.

2016-11-03  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/78186
        * combine.c (change_zero_ext): Mask the RHS of a zero_extract as
        well, when converting to IOR.

2016-11-03  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.md (vec_interleave_lowv8qi): Delete.
        (vec_interleave_highv8qi): Likewise.

2016-11-03  Martin Liska  <mliska@suse.cz>

        * profile.c (instrument_values): Fix coding style.
        (branch_prob): Use renamed function.
        * tree-profile.c (init_ic_make_global_vars): Likewise.
        (gimple_init_edge_profiler): Rename to
        gimple_init_gcov_profiler.
        tree_time_profiler_counter variable declaration.
        (gimple_gen_time_profiler): Rewrite to do a direct gimple code
        emission.
        * value-prof.h: Remove an argument.

2016-11-03  Richard Biener  <rguenther@suse.de>

        * config/rs6000/rs6000.c (rs6000_xcoff_declare_object_name): Use
        symtab_node::get_create.

2016-11-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * rtlanal.c (nonzero_bits1): Fix WORD_REGISTER_OPERATIONS condition.
        Move comments into more natural position.

2016-11-03  Vineet Gupta  <vgupta@synopsys.com>

        * config/arc/arc.h (SIZE_TYPE): Define as unsigned int.
        (PTRDIFF_TYPE): Define as int.

2016-11-03  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * ccmp.c (expand_ccmp_expr_1): Adjust.
        (expand_ccmp_expr): Likewise.
        (expand_ccmp_next): Likewise.
        * config/aarch64/aarch64.c (aarch64_gen_ccmp_next): Likewise.
        (aarch64_gen_ccmp_first): Likewise.
        * doc/tm.texi: Regenerate.
        * target.def (gen_ccmp_first): Change argument types to rtx_insn *.
        (gen_ccmp_next): Likewise.

2016-11-03  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop.c (destroy_loop_vec_info): Handle cond_expr.
        (vect_is_simple_reduction): Swap cond_reduction by inversion.

2016-11-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_init_libfuncs): New.  Call
        darwin_rename_builtins here.
        (ix86_expand_divmod_libfunc): New.
        (TARGET_INIT_LIBFUNCS): Unconditionally define to ix86_init_libfuncs.
        (TARGET_EXPAND_DIVMOD_LIBFUNC): Define.

2016-11-02  Cesar Philippidis  <cesar@codesourcery.com>
            Nathan Sidwell  <nathan@acm.org>

        * config/nvptx/nvptx.c (PTX_GANG_DEFAULT): Set to zero.

2016-11-02  Max Filippov  <jcmvbkbc@gmail.com>

        * config/xtensa/xtensa.c (xtensa_output_integer_literal_parts):
        New function.
        (xtensa_output_literal): Use xtensa_output_integer_literal_parts
        to format MODE_INT and MODE_PARTIAL_INT literals.

2016-11-02  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/78168
        * config/r6000/rs6000.c (rs6000_get_separate_components): Return
        NULL if TARGET_SPE_ABI.

2016-11-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * gimple-ssa-store-merging.c (encode_tree_to_bitpos): Don't forget to
        clear padding bits even when they're less than a byte.

2016-11-02  Richard Biener  <rguenther@suse.de>

        * gimple-ssa-store-merging.c: Include gimplify-me.h.
        (imm_store_chain_info::output_merged_stores): Force base_addr
        to be proper GIMPLE for a MEM_REF address.
        (pass_store_merging::execute): Restrict negative bitpos
        handling to non-MEM_REF bases.  Remove TREE_THIS_VOLATILE
        check.  Take into account non-NULL_TREE offset if the base
        is already addressable.

2016-11-26  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64-simd.md (aarch64_crypto_sha1hv4si):
        New pattern.
        (aarch64_be_crypto_sha1hv4si): New pattern.

2016-11-02  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.md (add<mode>3): Remove
        redundant code.  Don't split frame based additions.

2016-11-02  Richard Biener  <rguenther@suse.de>

        * gimple-ssa-store-merging.c (struct store_immediate_info): Remove
        redundant val and dest members.
        (store_immediate_info::store_immediate_info): Adjust.
        (merged_store_group::merged_store_group): Adjust.
        (merged_store_group::apply_stores): Likewise.
        (struct imm_store_chain_info): Add base_addr field.
        (imm_store_chain_info::imm_store_chain_info): New constructor.
        (imm_store_chain_info::terminate_and_process_chain): Do not pass base.
        (imm_store_chain_info::output_merged_store): Likewise.  Use
        addr_base which is already the address.
        (imm_store_chain_info::output_merged_stores): Likewise.
        (pass_tree_store_merging::terminate_all_aliasing_chains): Take
        imm_store_chain_info instead of base.  Fix alias check.
        (pass_tree_store_merging::terminate_and_release_chain): Likewise.
        (imm_store_chain_info::coalesce_immediate_stores): Adjust.
        (pass_store_merging::execute): Refuse to operate on TARGET_MEM_REF.
        use the address of the base and adjust for other changes.

2016-11-02  Martin Liska  <mliska@suse.cz>

        * fold-const-call.c (host_size_t_cst_p): Test whether
        t is convertible to size_t.

2016-11-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR tree-optimization/78170
        * gimple-ssa-store-merging.c (encode_tree_to_bitpos): Truncate padding
        introduced by native_encode_expr on little-endian as well.

2016-11-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR tree-optimization/78162
        * gimple-ssa-store-merging.c (execute): Mark stores with bitpos < 0
        as invalid.

2016-11-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (aarch64_register_saved_on_entry): Add
        function comment.
        (aarch64_next_callee_save): Likewise.
        (aarch64_pushwb_single_reg): Likewise.
        (aarch64_gen_storewb_pair): Likewise.
        (aarch64_push_regs): Likewise.
        (aarch64_gen_loadwb_pair): Likewise.
        (aarch64_pop_regs): Likewise.
        (aarch64_gen_store_pair): Likewise.
        (aarch64_gen_load_pair): Likewise.
        (aarch64_save_callee_saves): Likewise.
        (aarch64_restore_callee_saves): Likewise.

2016-11-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78035
        PR tree-optimization/77964
        * gimple-pretty-print.c (pp_points_to_solution): Print
        vars_contains_interposable.
        * tree-ssa-alias.c: Include varasm.h.
        (ptrs_compare_unequal): Check vars_contains_interposable and
        decl_binds_to_current_def_p.
        (dump_points_to_solution): Dump vars_contains_interposable.
        * tree-ssa-alias.h (struct pt_solution): Add vars_contains_interposable
        flag.
        * tree-ssa-structalias.c: Include varasm.h.
        (set_uids_in_ptset): Record whether vars contains a
        not decl_binds_to_current_def_p variable in vars_contains_interposable.
        (ipa_escaped_pt): Update initializer.

2016-11-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78047
        * tree-ssa-structalias.c (push_fields_onto_fieldstack): Initialize
        fake field at offset zero conservatively regarding to may_have_pointers.

2016-11-02  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (evrp_dom_walker::before_dom_children): Call
        infer_value_range on stmt ops and update value-ranges.
        Dump visited stmts and blocks.
        (evrp_dom_walker::push_value_range): Dump changes.
        (evrp_dom_walker::pop_value_range): Likewise.
        (evrp_dom_walker::try_find_new_range): Avoid noop changes.

2016-11-01  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * emit-rtl.c (prev_nonnote_insn_bb): Change argument type to
        rtx_insn *.
        * rtl.h (prev_nonnote_insn_bb): Adjust prototype.

2016-11-01  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * cfgrtl.c (delete_insn_chain): Change argument type to rtx_insn *
        and adjust for that.
        * cfgrtl.h (delete_insn_chain): Adjust prototype.

2016-11-01  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * config/rl78/rl78.c (gen-and_emit_move): Change argument type
        to rtx_insn *.
        (transcode_memory_rtx): Likewise.
        (move_to_acc): Likewise.
        (move_from_acc): Likewise.
        (move_acc_to_reg): Likewise.
        (move_to_x): Likewise.
        (move_to_hl): Likewise.
        (move_to_de): Likewise.
        * config/rs6000/rs6000.c (emit_frame_save): Likewise.
        (rs6000_emit_savres_rtx): Likewise.
        (rs6000_emit_prologue): Likewise.
        * reorg.c (update_reg_unused_notes): Likewise.
        * rtl.h (remove_note): Adjust prototype.
        * rtlanal.c (remove_note): Make argument type rtx_insn *.

2016-11-01  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * config/alpha/alpha.c (alpha_legitimize_address_1): Split up
        variables so some can be rtx_insn *.
        (alpha_emit_xfloating_libcall): Likewise.
        * config/mips/mips.c (mips_call_tls_get_addr): Likewise.
        (mips_legitimize_tls_address): Likewise.
        * optabs.c (expand_binop): Likewise.
        * reload1.c (gen_reload): Likewise.

2016-11-01  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * reorg.c (relax_delay_slots): Split up the trial variable.

2016-11-01  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * config/arc/arc.c (arc_emit_call_tls_get_addr): Make the type
        of variables rtx_insn *.
        * config/arm/arm.c (arm_call_tls_get_addr): Likewise.
        (legitimize_tls_address): Likewise.
        * config/bfin/bfin.c (hwloop_optimize): Likewise.
        (bfin_gen_bundles): Likewise.
        * config/c6x/c6x.c (reorg_split_calls): Likewise.
        (c6x_reorg): Likewise.
        * config/frv/frv.c (frv_reorder_packet): Likewise.
        * config/i386/i386.c (ix86_split_idivmod): Likewise.
        * config/ia64/ia64.c (ia64_expand_compare): Likewise.
        * config/m32c/m32c.c (m32c_prepare_shift): Likewise.
        * config/mn10300/mn10300.c: Likewise.
        * config/rl78/rl78.c: Likewise.
        * config/s390/s390.c (s390_fix_long_loop_prediction): Likewise.
        * config/sh/sh-mem.cc (sh_expand_cmpstr): Likewise.
        (sh_expand_cmpnstr): Likewise.
        (sh_expand_strlen): Likewise.
        (sh_expand_setmem): Likewise.
        * config/sh/sh.md: Likewise.
        * emit-rtl.c (emit_pattern_before): Likewise.
        * except.c: Likewise.
        * final.c: Likewise.
        * jump.c: Likewise.

2016-11-01  Jason Merrill  <jason@redhat.com>

        * tree-inline.c (copy_tree_body_r): Only copy the taken branch of
        a COND_EXPR with constant condition.

2016-11-01  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (gen_variable_die): Remove again origin_die variable
        and its initialization.

2016-11-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * dwarf2out.c (output_rnglists): Wrap basebuf, len in
        HAVE_AS_LEB128.

2016-11-01  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (add_name_and_src_coords_attributes): Add NO_LINKAGE_NAME
        argument, don't call add_linkage_name if it is true.
        (gen_variable_die): For C++ inline static data members, consider the
        initial call when old_die is NULL to be declaration and call
        add_name_and_src_coords_attributes in that case with true as
        NO_LINKAGE_NAME.  Add DW_AT_inline attribute if needed.
        (gen_member_die): For C++ inline static data members, emit a
        definition DIE right away in DW_TAG_compile_unit context.

2016-11-01  John David Anglin  <danglin@gcc.gnu.org>

        PR target/78166
        * config/pa/pa.md: Add new shift/add patterns to handle
        (plus (mult (reg) (mem_shadd_operand)) (reg)) source operand.

2016-11-01  Max Filippov  <jcmvbkbc@gmail.com>

        * config/xtensa/xtensa-protos.h
        (xtensa_use_return_instruction_p): New prototype.
        * config/xtensa/xtensa.c (xtensa_current_frame_size,
        xtensa_callee_save_size): Remove.
        (struct machine_function): Add new fields: current_frame_size,
        callee_save_size, frame_laid_out and epilogue_done.
        (compute_frame_size, xtensa_expand_prologue,
        xtensa_expand_epilogue): Replace xtensa_callee_save_size with
        cfun->machine->callee_save_size and xtensa_current_frame_size
        with cfun->machine->current_frame_size.
        (compute_frame_size): Update cfun->machine->frame_laid_out and
        don't update frame layout after reload completion.
        (xtensa_expand_epilogue): Set cfun->machine->epilogue_done
        instead of zeroing xtensa_current_frame_size.
        (xtensa_use_return_instruction_p): New function.
        * config/xtensa/xtensa.h (xtensa_current_frame_size): Remove
        declaration.
        (INITIAL_ELIMINATION_OFFSET): Use return value of
        compute_frame_size instead of xtensa_current_frame_size value.
        * config/xtensa/xtensa.md ("return" pattern): Use new predicate
        function xtensa_use_return_instruction_p instead of inline code.

2016-11-01  Jakub Jelinek  <jakub@redhat.com>

        * tree.h (BLOCK_IN_COLD_SECTION_P): Define.
        * final.c (final_scan_insn): Set BLOCK_IN_COLD_SECTION_P.
        * dwarf2out.c (rnglist_idx): New variable.
        (struct dw_ranges): Add label, idx and maybe_new_sec fields.
        (DEBUG_RNGLISTS_SECTION): Define.
        (ranges_base_label): New variable.
        (size_of_die) <case dw_val_class_range_list>: If using
        DW_FORM_rnglistx, count size of uleb128 of range list index.
        (value_format) <case dw_val_class_range_list>: For
        -gdwarf-5 -gsplit-dwarf return DW_FORM_rnglistx.
        (output_range_list_offset): Handle -gdwarf-5 .debug_rnglists
        offsets.  Multiply dwarf < 5 offsets by 2 * DWARF_ADDR_SIZE.
        (add_ranges_num): Remove useless prototype.  Don't multiply
        by 2 * DWARF2_ADDR_SIZE.  Add maybe_new_sec argument, adjust
        for new fields added to dw_ranges struct.
        (add_ranges): Add maybe_new_sec argument and pass it
        through to add_ranges_num.
        (note_rnglist_head): New function.
        (add_ranges_by_labels): Pass true as maybe_new_sec to
        add_ranges_num, call note_rnglist_head on the head of the list.
        (output_ranges): Add function comment.  Switch to
        .debug_ranges section here and emit .Ldebug_ranges0 label.
        (index_rnglists, output_rnglists): New functions.
        (gen_subprogram_die): Formatting fixes.
        (add_high_low_attributes): Don't divide offsets
        by 2 * DWARF2_ADDR_SIZE.  Call note_rnglist_head on the
        first list element or when pointing into the middle of
        a list.  Pass true as second argument to add_ranges on the
        first block fragment after cold/hot section switch.
        (init_sections_and_labels): For -gdwarf-5 use .debug_rnglists
        section instead of .debug_ranges.  Initialize
        ranges_base_label if -gdwarf-5 -gsplit-dwarf.
        (dwarf2out_finish): For -gdwarf-5 -gsplit-dwarf call
        index_rnglists and add DW_AT_rnglists_base attr.  Don't switch
        to dwarf_ranges_section here or emit .Ldebug_ranges0 label.
        Call output_rnglists for -gdwarf-5.
        (dwarf2out_c_finalize): Clear rnglist_idx.

2016-11-01  Fritz Reese  <fritzoreese@gmail.com>

        * combine.c (simplify_compare_const): Add gcc_fallthrough.

2016-11-01  Bilyan Borisov  <bilyan.borisov@arm.com>
            Tamar Christina <tamar.christina@arm.com>

        * config/arm/arm-c.c (arm_cpu_builtins): New macro definition.
        * config/arm/arm_neon.h (vmaxnm_f32): New intrinsinc.
        (vmaxnmq_f32): Likewise.
        (vminnm_f32): Likewise.
        (vminnmq_f32): Likewise.
        * config/arm/arm_neon_builtins.def (vmaxnm): New builtin.
        (vminnm): Likewise.
        * config/arm/neon.md (neon_<fmaxmin_op><mode>, VCVTF): New
        expander.

2016-10-31  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/vsx.md (VSX_EXTRACT_FL): New iterator for all
        binary floating point types supported by the hardware except for
        double.
        (vsx_xvcvsxwdp_df): Provide scalar result alternative to the
        vector instruction for optimizing extracting a SImode from a
        V4SImode vector and converting it to floating point.
        (vsx_xvcvuxwdp_df): Likewise.
        (vsx_extract_si): On ISA 3.0, allow extract target and temporary
        registers to be any VSX register.  Move stores to the end of the
        constraints.
        (vsx_extract_si_<uns>float_df): New combiner pattern and splitter
        to optimize extracting a SImode from a V4SImode vector and
        converting it to a binary floating point type supported by the
        hardware.  Use the vector converts instead of extracting the
        element, sign extending it, and then converting it to double.
        Other floating point types  than double first convert to double,
        then the double is converted to that type.
        (vsx_extract_si_<uns>float_<mode>): Likewise.

2016-10-31  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/driver-aarch64.c (host_detect_local_cpu):
        Rewrite handling of part num to handle the case where
        multiple implementers share the same part num.

2016-10-31  Jan Kratochvil  <jan.kratochvil@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (DWARF_COMPILE_UNIT_HEADER_SIZE): Adjust for -gdwarf-5.
        (DWARF_COMDAT_TYPE_UNIT_HEADER_SIZE): Likewise.

2016-10-31  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (dwarf_AT): Handle DW_AT_dwo_name.
        (use_debug_types): Adjust comment for DWARF5 DW_UT_type units.
        (new_die): Handle DW_TAG_skeleton_unit like DW_TAG_compile_unit.
        (is_cu_die, is_unit_die): Likewise.
        (should_move_die_to_comdat, break_out_comdat_types): Adjust
        comments for DWARF5 DW_UT_type units.
        (output_compilation_unit_header): Add UT argument, output
        start of DWARF5 .debug_info section header.
        (output_comp_unit): Add dwo_id argument.  Adjust
        output_compilation_unit_header caller, for DW_UT_split_compile
        emit dwo_id field, otherwise padding1.  Emit padding2 field.
        (add_top_level_skeleton_die_attrs): Add DW_AT_dwo_name
        rather than DW_AT_GNU_dwo_name attr for -gdwarf-5.
        (output_skeleton_debug_sections): Add dwo_id argument, for
        -gdwarf-5 emit DWARF 5 DW_UT_skeleton header.
        (output_comdat_type_unit): For -gdwarf-5 emit .debug_info
        DW_UT_type or DW_UT_split_type units rather than .debug_types.
        (dwarf2out_finish): Use DW_TAG_skeleton_unit rather than
        DW_TAG_compile_unit for skeleton unit die.  Don't add
        DW_AT_GNU_dwo_id attributes for -gdwarf-5, instead pass checksum
        address to output_comp_unit and output_skeleton_debug_sections.

        * dwarf2out.c (debug_line_str_section): New variable.
        (debug_line_str_hash): Likewise.
        (DEBUG_LINE_STR_SECTION): Define.
        (set_indirect_string): Handle DW_FORM_line_strp like
        DW_FORM_strp.
        (find_string_form): Fix up formatting.
        (size_of_die): Handle DW_FORM_line_strp like DW_FORM_strp.
        Fix up indentation.
        (output_die): Handle DW_FORM_line_strp.
        (DWARF5_USE_DEBUG_LINE_STR): Define.
        (output_line_string): New function.
        (output_file_names): Add -gdwarf-5 support.
        (output_line_info): Likewise.
        (init_sections_and_labels): Initialize debug_line_str_section.
        (output_indirect_string): Change 2nd argument from void *
        to enum dwarf_form form, compare with form rather than
        DW_FORM_strp.
        (output_indirect_strings): Pass DW_FORM_strp to
        output_indirect_string traversion.
        (dwarf2out_finish): Output .debug_line_str strings.
        (dwarf2out_c_finalize): Clear debug_line_str_section and
        debug_line_str_hash.

2016-10-31  Tom Tromey  <tom@tromey.com>

        PR debug/77315
        * dwarf2out.c (mem_loc_descriptor): Use DW_OP_form_tls_address.
        (resolve_args_picking_1): Move DW_OP_form_tls_address case next to
        DW_OP_GNU_push_tls_address case.
        (loc_list_from_tree_1): Use DW_OP_form_tls_address.

2016-10-31  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.h (struct dw_loc_descr_node): Adjust comment
        for frame_offset_rel bit.
        (struct array_descr_info): Add rank field.
        * dwarf2out.c (struct loc_descr_context): Add placeholder_arg
        and placeholder_seen fields.
        (resolve_args_picking_1): Handle also frame_offset_rel DW_OP_dup
        and DW_OP_over.  Optimize DW_OP_pick 0 into DW_OP_dup and
        DW_OP_pick 1 into DW_OP_over.
        (function_to_dwarf_procedure, type_byte_size, field_byte_offset,
        gen_variant_part): Clear placeholder_{arg,seen}.
        (loc_list_from_tree_1): Drop const from context argument.
        Handle integral PLACEHOLDER_EXPR if context->placeholder_arg.
        (loc_list_for_address_of_addr_expr_of_indirect_ref,
        loc_list_from_tree, loc_descriptor_from_tree): Drop const from
        context argument.
        (add_scalar_info): Drop const from context argument.  Handle
        context->placeholder_arg.
        (add_bound_info): Drop const from context argument.
        (gen_descr_array_type_die): Drop const from ctx variable.
        Initialize placeholder_arg and placeholder_seen.  Add DW_AT_rank
        attribute and use a single DW_TAG_generic_subrange instead of
        7 DW_TAG_subrange_type for assumed rank arrays.

        * dwarf2out.h (enum dw_val_class): Add dw_val_class_loclistsptr.
        * dwarf2out.c (struct dw_loc_list_struct): Change emitted field
        from bool to 1-bit uchar bitfield.  Add num_assigned and
        offset_emitted bitfields.
        (dw_val_equal_p): Compare v.val_lbl_id rather than v.val_unsigned
        for dw_val_class_lineptr and dw_val_class_macptr.  Handle
        dw_val_class_loclistsptr.
        (new_addr_loc_descr): Fix up formatting.
        (DEBUG_LOCLISTS_SECTION, DEBUG_DWO_LOCLISTS_SECTION): Define.
        (add_AT_low_high_pc): Fix up formatting.
        (add_AT_loclistsptr): New function.
        (AT_lbl): Allow dw_val_class_loclistsptr.
        (print_dw_val, attr_checksum, attr_checksum_ordered, same_dw_val_p):
        Handle dw_val_class_loclistsptr.
        (loc_list_idx): New variable.
        (output_loclists_offsets, assign_location_list_indexes): New
        functions.
        (size_of_die): For dw_val_class_loc_list -gsplit-dwarf -gdwarf-5
        add size_of_uleb128 of the index.  Drop never used
        dwarf_split_debug_info AT_index handling.  Handle
        dw_val_class_loclistsptr.
        (value_format): Return DW_FORM_loclistsx for dw_val_class_loc_list
        if -gsplit-dwarf -gdwarf-5.  Handle dw_val_class_loclistsptr.
        (output_loc_list): Handle DWARF 5 .debug_loclists* format.
        (output_loc_list_offset): Handle -gsplit-dwarf -gdwarf-5
        DW_FORM_loclistx indexes.
        (output_attr_index_or_value): Fix up formatting.  Don't handle
        dw_val_class_loc_list here.
        (output_die): Formatting fixes.  Handle dw_val_class_loclistsptr.
        For dw_val_class_loc_list call output_loc_list_offset rather than
        output_attr_index_or_value.
        (init_sections_and_labels): For -gdwarf-5 use .debug_loclists
        or .debug_loclists.dwo section name for debug_loc_section.
        (resolve_addr_in_expr): Formatting fix.
        (index_location_lists): Likewise.
        (dwarf2out_finish): If there are any location lists, for
        -gsplit-dwarf -gdwarf-5 add DW_AT_loclists_base attribute.  Call
        index_location_lists only if have_location_lists.  Call
        assign_location_list_indexes for -gsplit-dwarf -gdwarf-5.  Emit
        .debug_loclists{,.dwo} section header for -gdwarf-5, for -gdwarf-5
        -gsplit-dwarf also emit offset table.

        * dwarf2out.c (DWARF_LARGEST_DATA_FORM_BITS): Define.
        (size_of_die, value_format, output_die): Use
        DW_FORM_data16 for 128-bit dw_val_class_const_double or
        dw_val_class_wide_int.

        * dwarf2out.c (dwarf_op): Renamed to ...
        (dwarf_OP): ... this.
        (convert_descriptor_to_mode, scompare_loc_descriptor,
        minmax_loc_descriptor, typed_binop, mem_loc_descriptor,
        implicit_ptr_descriptor, optimize_one_addr_into_implicit_ptr): Adjust
        callers.
        (dwarf_AT, dwarf_TAG): New functions.
        (check_die): Disallow DW_AT_call_all_calls next to
        DW_AT_GNU_all_call_sites.
        (gen_call_site_die): Use dwarf_TAG and dwarf_AT with DWARF 5 tag
        and attributes instead of the corresponding GNU tag and attributes.
        (gen_subprogram_die): Likewise.  Emit call site information even
        for -gdwarf-5 -gstrict-dwarf.  Replace DW_AT_GNU_defaulted with
        DW_AT_defaulted in comment.
        (resolve_addr): Handle DW_AT_call_origin attribute on
        DW_TAG_call_site DIE like DW_AT_abstract_origin on
        DW_TAG_GNU_call_site DIE.

        * dwarf2out.c (dwarf_op): New function.
        (size_of_loc_descr): Handle DW_OP_{implicit_pointer,entry_value},
        DW_OP_{const,regval,deref}_type and DW_OP_{convert,reinterpret}.
        (output_loc_operands, output_loc_operands_raw): Likewise.
        (resolve_args_picking_1, prune_unused_types_walk_loc_descr,
        mark_base_types, hash_loc_operands, compare_loc_operands): Likewise.
        (resolve_addr_in_expr): Likewise.  Only punt for !dwarf_strict
        if dwarf_version < 5.
        (convert_descriptor_to_mode): Use dwarf_op (DW_OP_xxx) instead of
        DW_OP_GNU_xxx.
        (scompare_loc_descriptor, ucompare_loc_descriptor,
        minmax_loc_descriptor, typed_binop, mem_loc_descriptor,
        implicit_ptr_descriptor, optimize_one_addr_into_implicit_ptr,
        optimize_location_into_implicit_ptr): Likewise.  Only punt for
        !dwarf_strict if dwarf_version < 5.
        (string_cst_pool_decl): Adjust comment.
        (non_dwarf_expression): Handle DW_OP_implicit_pointer.

        * dwarf2out.h (enum dw_val_class): Add dw_val_class_const_implicit,
        dw_val_class_unsigned_const_implicit and dw_val_class_file_implicit.
        (struct dw_val_node): Add val_file_implicit field.
        * dwarf2out.c (dw_val_equal_p, print_dw_val, attr_checksum,
        attr_checksum_ordered, same_dw_val_p, size_of_die, value_format,
        output_die): Handle dw_val_class_const_implicit,
        dw_val_class_unsigned_const_implicit and dw_val_class_file_implicit.
        (abbrev_die_table): Change into va_gc vec.
        (abbrev_die_table_allocated, abbrev_die_table_in_use,
        ABBREV_DIE_TABLE_INCREMENT): Remove.
        (AT_int, AT_unsigned, AT_file): Allow dw_val_class_*_implicit.
        (abbrev_opt_start, abbrev_usage_count, sorted_abbrev_dies): New
        variables.
        (build_abbrev_table): Adjust for abbrev_die_table being a va_gc vec.
        If abbrev_opt_start, fill in abbrev_usage_count and abbrev_dies
        vectors.
        (die_abbrev_cmp, optimize_implicit_const, optimize_abbrev_table): New
        functions.
        (output_die_abbrevs): For DW_FORM_implicit_const emit sleb128 with
        the implicit value.
        (output_abbrev_section): Adjust for abbrev_die_table being a va_gc
        vec.
        (output_comp_unit): Initialize abbrev_opt_start if emitting the main
        unit.  Call optimize_abbrev_table.
        (dwarf2out_init, dwarf2out_finish, dwarf2out_c_finalize): Adjust for
        abbrev_die_table being a va_gc vec.

        PR tree-optimization/77860
        * tree-ssa-reassoc.c (eliminate_using_constants): Handle
        also integral complex and vector constants.

        * dwarf2out.c (dwarf2out_define, dwarf2out_undef, output_macinfo_op,
        optimize_macinfo_range, save_macinfo_strings): Replace
        DW_MACRO_GNU_* constants with corresponding DW_MACRO_* constants.
        (output_macinfo): Likewise.  Emit .debug_macro* rather than
        .debug_macinfo* even for -gstrict-dwarf -gdwarf-5.
        (init_sections_and_labels): Use .debug_macro* labels rather than
        .debug_macinfo* labels even for -gstrict-dwarf -gdwarf-5.
        (dwarf2out_finish): Use DW_AT_macros instead of DW_AT_macro_info
        or DW_AT_GNU_macros for -gdwarf-5.

2016-10-31  Waldemar Brodkorb  <wbx@openadk.org>

        * config/microblaze/linux.h (UCLIBC_DYNAMIC_LINKER): Define.

2016-09-11  Le-Chun Wu  <lcwu@google.com>
            Mark Wielaard  <mjw@redhat.com>

        * common.opt (Wshadow=global): New option. Default for -Wshadow.
        (Wshadow=local): New option.
        (Wshadow-local): Hidden alias for -Wshadow=local.
        (Wshadow=compatible-local): New option.
        (Wshadow-compatible-local): Hidden alias for
        -Wshadow=compatible-local.
        * doc/invoke.texi: Document Wshadow=global, Wshadow=local and
        Wshadow=compatible-local.

2016-10-31  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-slp.c (vect_get_and_check_slp_defs): New parameter SWAP.
        Check slp defs for COND_EXPR by swapping/inverting operands if the
        new parameter SWAP indicates so.
        (vect_build_slp_tree_1): New parameter SWAP.  Check COND_EXPR stmt
        is isomorphic to the first stmt via swapping/inverting.  Store swap
        information in the new parameter SWAP.
        (vect_build_slp_tree): New local array SWAP and pass it to function
        vect_build_slp_tree_1.  Cleanup result handling code for function
        call to vect_get_and_check_slp_defs.  Skip operand swapping if the
        order of operands has been fixed as indicated by SWAP[i].

2016-10-31  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-data-refs.c (vect_slp_analyze_node_dependences): Skip
        unnecessary data dependence check after visited store stmt.

2016-10-30  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/71915
        PR tree-optimization/71490
        * gimple-ssa-strength-reduction.c (struct slsr_cand_d): Add
        stride_type field.
        (find_basis_for_base_expr): Require stride types to match when
        seeking a basis.
        (alloc_cand_and_find_basis): Record the stride type.
        (slsr_process_phi): Pass stride type to alloc_cand_and_find_basis.
        (backtrace_base_for_ref): Pass types to legal_cast_p_1 rather than
        the expressions having those types.
        (slsr_process_ref): Pass stride type to alloc_cand_and_find_basis.
        (create_mul_ssa_cand): Likewise.
        (create_mul_imm_cand): Likewise.
        (create_add_ssa_cand): Likewise.
        (create_add_imm_cand): Likewise.
        (legal_cast_p_1): Change interface to accept types rather than the
        expressions having those types.
        (legal_cast_p): Pass types to legal_cast_p_1.
        (slsr_process_cast): Pass stride type to
        alloc_cand_and_find_basis.
        (slsr_process_copy): Likewise.
        (dump_candidate): Display stride type when a cast exists.
        (create_add_on_incoming_edge): Introduce a cast when necessary for
        the stride type.
        (analyze_increments): Change the code checking for invalid casts
        to rely on the stride type, and update the documentation and
        example.  Change the code checking for pointer multiplies to rely
        on the stride type.
        (insert_initializers): Introduce a cast when necessary for the
        stride type.  Use the stride type for the type of the initializer.

2016-10-30  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * config/arm/arm.c (arm_const_not_ok_for_debug_p): Use VAR_P.

2016-10-29  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/77919
        * expr.c (expand_expr_real_1) <normal_inner_ref>: Only avoid forcing
        into memory if both modes are complex and their inner modes have the
        same precision.  If the two modes are different complex modes, convert
        each part separately and generate a new CONCAT.

2016-10-29  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa64-hpux.h (FINI_SECTION_ASM_OP): Define to null string.

2016-10-29  Jakub Jelinek  <jakub@redhat.com>

        PR target/78148
        * gimple-ssa-store-merging.c
        (imm_store_chain_info::output_merged_store): Use build_aligned_type
        instead of SET_TYPE_ALIGN on shared integral type.

2016-10-29  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.h (BIGGEST_ALIGNMENT): Adjust comment.
        (MALLOC_ABI_ALIGNMENT): Define to 128 on all targets except SOM.
        Adjust comment.

2016-10-28  Jeff Law  <law@redhat.com>

        * config/vax/vax.h (REGNO_REG_CLASS): Access the REGNO argument.
        * config/spu/spu.h (REGNO_REG_CLASS): Likewise.

2016-10-28  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/sourcebuild.texi (Ada Tests): Remove mention of gcc chapter.

2016-10-28  Eric Botcazou  <ebotcazou@adacore.com>

        * target.def (min_arithmetic_precision): New hook.
        * doc/tm.texi.in (Misc): Add TARGET_MIN_ARITHMETIC_PRECISION.
        * doc/tm.texi: Regenerate.
        * internal-fn.c (expand_arith_overflow): Adjust handling of target
        dependent support by means of TARGET_MIN_ARITHMETIC_PRECISION.
        * targhooks.c (default_min_arithmetic_precision): New function.
        * targhooks.h (default_min_arithmetic_precision): Declare.
        * config/sparc/sparc.c (TARGET_MIN_ARITHMETIC_PRECISION): Define.
        (sparc_min_arithmetic_precision): New function.

2016-10-28  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/71847
        * combine.c (change_zero_ext): Handle zero_ext of hard registers.
        Swap commutative operands in new RTL if needed.  Handle zero_ext
        in the set_dest.
        (recog_for_combine): Pass *pnewpat to change_zero_ext instead of
        PATTERN (insn).

2016-10-28  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
            Kugan Vivekanandarajah  <kuganv@linaro.org>
            Jim Wilson  <jim.wilson@linaro.org>

        PR tree-optimization/43721
        * target.def: New hook expand_divmod_libfunc.
        * doc/tm.texi.in: Add hook for TARGET_EXPAND_DIVMOD_LIBFUNC.
        * doc/tm.texi: Regenerate.
        * internal-fn.def: Add new entry for DIVMOD ifn.
        * internal-fn.c (expand_DIVMOD): New.
        * tree-ssa-math-opts.c: Include optabs-libfuncs.h, tree-eh.h,
        targhooks.h.
        (widen_mul_stats): Add new field divmod_calls_inserted.
        (target_supports_divmod_p): New.
        (divmod_candidate_p): Likewise.
        (convert_to_divmod): Likewise.
        (pass_optimize_widening_mul::execute): Call calculate_dominance_info,
        renumber_gimple_stmt_uids at beginning of function. Call
        convert_to_divmod and record stats for divmod.
        * config/arm/arm.c (arm_expand_divmod_libfunc): Override hook
        TARGET_EXPAND_DIVMOD_LIBFUNC.
        * doc/sourcebuild.texi: Add items for arm_divmod_simode, divmod,
        divmod_simode.

2016-10-28  Eric Botcazou  <ebotcazou@adacore.com>
            Segher Boessenkool  <segher@kernel.crashing.org>

        * dojump.c (do_jump_by_parts_greater_rtx): Invert probability when
        swapping the arms of the branch.
        * internal-fn.c (expand_addsub_overflow): Use a straight-line code
        sequence for the generic signed-signed-signed case.

2016-10-28  Jeff Law  <law@redhat.com>

        * config/bfin/bfin.c (bfin_legitimate_address_p): Add missing
        fallthru comment.
        * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Likewise.

2016-10-28  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/78029
        * function.c (prologue_contains, epilogue_contains): New functions.
        (record_prologue_seq, record_epilogue_seq): New functions.
        * function.h (prologue_contains, epilogue_contains,
        record_prologue_seq, record_epilogue_seq): New declarations.
        * sched-deps.c (sched_analyze_insn): Make dependencies to prevent
        mixing prologue and epilogue insns.
        (init_deps): Initialize the new fields in struct deps_desc.
        * sched-int.h (struct deps_desc): New fields last_prologue,
        last_epilogue, and last_logue_was_epilogue.
        * shrink-wrap.c (emit_common_heads_for_components): Record all
        emitted prologue and epilogue insns.
        (emit_common_tails_for_components): Ditto.
        (insert_prologue_epilogue_for_components): Ditto.

2016-10-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR middle-end/22141
        * Makefile.in (OBJS): Add gimple-ssa-store-merging.o.
        * common.opt (fstore-merging): New Optimization option.
        * opts.c (default_options_table): Add entry for
        OPT_ftree_store_merging.
        * fold-const.h (can_native_encode_type_p): Declare prototype.
        * fold-const.c (can_native_encode_type_p): Define.
        * params.def (PARAM_STORE_MERGING_ALLOW_UNALIGNED): Define.
        (PARAM_MAX_STORES_TO_MERGE): Likewise.
        * timevar.def (TV_GIMPLE_STORE_MERGING): New timevar.
        * passes.def: Insert pass_tree_store_merging.
        * tree-pass.h (make_pass_store_merging): Declare extern
        prototype.
        * gimple-ssa-store-merging.c: New file.
        * doc/invoke.texi (Optimization Options): Document
        -fstore-merging.
        (--param documentation): Document store-merging-allow-unaligned
        and max-stores-to-merge.

2016-10-28  Will Schmidt <will_schmidt@vnet.ibm.com>

        PR middle-end/72747
        * gimplify.c (gimplify_init_constructor): Move emit of constructor
        assignment to earlier in the if/else logic.

2016-10-28  Richard Biener  <rguenther@suse.de>

        PR middle-end/78128
        PR middle-end/71002
        * fold-const.c (make_bit_field_ref): Only adjust alias set
        when the original alias set was zero.

2016-10-28  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_adjust_loop_scan_osc): New function.
        (s390_adjust_loops): New function.
        (s390_reorg): Invoke s390_adjust_loops.
        * config/s390/s390.md: (UNSPEC_OSC_BREAK): New constant.
        ("osc_break"): New insn definition.

2016-10-28  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.opt: Support alternate cpu level naming (archXX).
        * config.gcc: Support alternate archXX cpu levels with
        --with-arch= and --with-tune=.
        * config/s390/linux.h: Translate new archXX cpu levels to the
        original names when calling GAS.
        * config/s390/tpf.h: Likewise.
        * doc/invoke.texi: Document the alternate cpu level names.

2016-10-28  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/77919
        * expr.c (expand_expr_real_1) <normal_inner_ref>: Force CONCAT into
        MEM if mode1 is not a complex mode.

        PR rtl-optimization/78132
        * ree.c (combine_reaching_defs): Give up if copy_needed and
        !HARD_REGNO_MODE_OK (REGNO (src_reg), dst_mode).

2016-10-27  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.md (<*vlop:code><VL:mode>3): Remove leading '*'.

2016-10-27  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/constraints.md (wH constraint): Add new
        constraints for allowing 32-bit integers (and eventually 8/16-bit
        integers) into the vector registers.
        (wI constraint): Likewise.
        (wJ constraint): Likewise.
        (wK constraint): Likewise.
        * config/rs6000/rs6000-cpus.def (ISA_2_7_MASKS_SERVER): Add
        -mvsx-small-integer as a default option for ISA 2.07
        (i.e. power8).
        (POWERPC_MASKS): Likewise.
        * config/rs6000/rs6000.opt (-mvsx-small-integer): Add new debug
        switch to turn off small integer support in vector registers.
        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Eliminate
        test for -mupper-regs-di, since it is already done with the
        reg_add[mode].scalar_in_vsx_p.  Add support for the switch
        -mvsx-small-integer.
        (rs6000_debug_reg_global): Add support for wH, wI, wJ, and wK
        constraints.
        (rs6000_setup_reg_addr_masks): Likewise.
        (rs6000_init_hard_regno_mode_ok): Likewise.
        (rs6000_option_override_internal): Add consistency checks for
        -mvsx-small-integer.
        (rs6000_secondary_reload_simple_move): SImode is a simple move if
        -mvsx-small-integer.
        (rs6000_secondary_reload): Use std::swap.
        (rs6000_preferred_reload_class): Don't prefer FLOAT_REGS over
        VSX_REGS for small integers in vector registers, since there is no
        D-FORM address mode for such types.
        (rs6000_register_move_cost): Use FIRST_FPR_REGNO instead of 32.
        (rs6000_opt_masks): Add -mvsx-small-integer.
        * config/rs6000/vsx.md (VSINT_84): Add SImode for small integer
        support.
        (VSX_EXTRACT_I2): Clone VSX_EXTRACT_I, but drop V4SI since SImode
        extracts can be done on ISA 2.07.
        (vsx_extract_<mode>): Add support for small integers in vsx
        registers.
        (vsx_extract_<mode>_p9): Use 'v' instead of VSX_EX, since we no
        longer support V4SImode in this pattern.
        (vsx_extract_si): New insn to support extraction of SImode in ISA
        2.07 using either xxextractuw or vspltw.
        (vsx_extract_<mode>_p8): Use 'v' instead of VSX_EX, since we no
        longer support V4SImode in this pattern.
        * config/rs6000/rs6000.h (enum rs6000_reg_class_enum): Add wH, wI,
        wJ, and wK constraints.
        * config/rs6000/rs6000.md (f32_sv): Use correct instruction for
        storing SDmode with VSX instructions.
        (zero_extendsi<mode>2): Reorder pattern, so RLDICL comes after the
        GPR load and before the FPR and VSX loads.  Remove ??, ! from the
        constraints.  Add MFVSRWZ and XXEXTRACTUW instructions to support
        small integers in vector registers.
        (extendsi<mode>2): Reorder pattern, so EXTSW comes after the GPR
        load and before the FPR and VSX loads.  Remove ??, ! from the
        constraints.  Add VEXTSW2D support for small integers in vector
        registers.
        (lfiwax): Remove ! constraint.  Add VEXTSW2D support for small
        integers in vector registers.
        (floatsi<mode>2_lfiwax): If -mvsx-small-integer issue a normal
        move instead of using an UNSPEC.
        (lfiwzx): Remove ! constraint.  Add XXEXTRACTUW support for small
        integers in vector registers.
        (floatunssi<mode>2_lfiwzx): If -mvsx-small-integer issue a normal
        move instead of using an UNSPEC.
        (movsi_internal1): Add support for -mvsx-small-integer.  Align
        columns so that it is more readable.
        (SImode splitter for ISA 3.0 constants): Add splitter for
        -128..127 constants that can easily be constructed on ISA 3.0.
        * doc/md.texi (PowerPC Constraints): Document wH, wI, wJ, and wK
        constraints.

2016-10-27  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/78025
        * omp-simd-clone.c (simd_clone_adjust): Handle noreturn declare simd
        functions.

2016-10-27  Aldy Hernandez  <aldyh@redhat.com>

        * builtins.c (expand_builtin_nonlocal_goto): Avoid evaluating
        PIC_OFFSET_TABLE_REGNUM twice.

2016-10-27  Bin Cheng  <bin.cheng@arm.com>

        * match.pd ((convert (op:s (convert@2 @0) (convert?@3 @1)))): Add
        support for constant operand for OP.

2016-10-27  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (gen_member_die): Only reparent_child instead of
        splice_child_die if child doesn't have DW_AT_specification attribute.

2016-10-27  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.h (TARGET_HAVE_LDREX): Define for ARMv8-M Baseline.
        (TARGET_HAVE_LDREXBH): Likewise.
        (TARGET_HAVE_LDACQ): Likewise.

2016-10-27  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (arm_split_atomic_op): Add function comment.  Add
        logic to to decide whether to copy over old value to register for new
        value.
        * config/arm/sync.md: Add comments explaning why mode and code
        attribute are not defined in iterators.md
        (thumb1_atomic_op_str): New code attribute.
        (thumb1_atomic_newop_str): Likewise.
        (thumb1_atomic_fetch_op_str): Likewise.
        (thumb1_atomic_fetch_newop_str): Likewise.
        (thumb1_atomic_fetch_oldop_str): Likewise.
        (atomic_exchange<mode>): Add new ARMv8-M Baseline only alternatives to
        mirror the more restrictive constraints of the Thumb-1 insns after
        split compared to Thumb-2 counterpart insns.
        (atomic_<sync_optab><mode>): Likewise.  Add comment to keep constraints
        in sync with non atomic version.
        (atomic_nand<mode>): Likewise.
        (atomic_fetch_<sync_optab><mode>): Likewise.
        (atomic_fetch_nand<mode>): Likewise.
        (atomic_<sync_optab>_fetch<mode>): Likewise.
        (atomic_nand_fetch<mode>): Likewise.
        * config/arm/thumb1.md (thumb1_addsi3): Add comment to keep contraint
        in sync with atomic version.
        (thumb1_subsi3_insn): Likewise.
        (thumb1_andsi3_insn): Likewise.
        (thumb1_iorsi3_insn): Likewise.
        (thumb1_xorsi3_insn): Likewise.

2016-10-27  Nick Clifton  <nickc@redhat.com>

        * plugin.c (register_plugin_info): Produce an error message if the
        plugin is not found in the hash table.

2016-10-27  Bin Cheng  <bin.cheng@arm.com>

        * match.pd ((convert1 (minmax ((convert2 (x) c)))) -> minmax (x c)):
        New pattern.

2016-10-26  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        PR target/78056
        * config/rs6000/rs6000.c (spe_init_builtins): Modify loops to not
        define builtin functions from the bdesc_spe_predicates or
        bdesc_spe_evsel arrays if the builtin mask is not compatible with
        the current compiler configuration.
        (paired_init_builtins): Modify loop to not define define builtin
        functions from the bdesc_paried_preds array if the builtin mask is
        not compatible with the current compiler configuration.
        (altivec_init_builtins): Modify loops to not define the
        __builtin_altivec_stxvl function nor the builtin functions from
        the bdesc_dst or bdesc_altivec_preds, or bdesc_abs arrays if the
        builtin mask is not compatible with the current compiler
        configuration.

2016-10-26  Jeff Law  <law@redhat.com>

        * config/sh/sh.c (output_branch): Add missing fallthru comments.
        (gen_shl_and): Likewise.
        * config/sh/sh.md (movsicc): Add missing fallthru comments.

        * config/mips/mips.c (mips16_constant_cost): Add missing
        fallthru comments.
        (mips16_build_call_stub): Increase buffer size.  Adjust
        fallthru comment.

2016-10-26  David Malcolm  <dmalcolm@redhat.com>

        * print-rtl.c (rtx_writer::print_rtx_operand_code_u): Print
        INSN_UIDs for all insns in compact mode.
        (rtx_writer::print_rtx): Likewise.
        * print-rtl.h (rtx_writer::flag_compact): Update comment.
        * rtl-tests.c (selftest::test_dumping_insns): Update expected
        output to include INSN_UID.
        (selftest::test_uncond_jump): Likewise.

2016-10-26  Pat Haugen  <pthaugen@us.ibm.com>

        * haifa-sched.c (call_used_regs_num): Rename to...
        (call_saved_regs_num): ...this.
        (fixed_regs_num): New variable.
        (sched_pressure_start_bb): Subtract out fixed_regs. Scale call_saved
        regs not call_used.
        (alloc_global_sched_pressure_data): Compute call_saved and fixed regs.

2016-10-26  David Malcolm  <dmalcolm@redhat.com>

        * print-rtl-function.c (print_rtx_function): Rewrite in terms of
        class rtx_writer.
        * print-rtl.c (outfile): Delete global.
        (sawclose): Likewise.
        (indent): Likewise.
        (in_call_function_usage): Likewise.
        (flag_compact): Likewise.
        (flag_simple): Likewise.
        (rtx_writer::rtx_writer): New ctor.
        (print_rtx_operand_code_0): Convert to...
        (rtx_writer::print_rtx_operand_code_0): ...this.
        (print_rtx_operand_code_e): Convert to...
        (rtx_writer::print_rtx_operand_code_e): ...this.
        (print_rtx_operand_codes_E_and_V): Convert to...
        (rtx_writer::print_rtx_operand_codes_E_and_V): ...this.
        (print_rtx_operand_code_i): Convert to...
        (rtx_writer::print_rtx_operand_code_i): ...this.
        (print_rtx_operand_code_r): Convert to...
        (rtx_writer::print_rtx_operand_code_r): ...this.
        (print_rtx_operand_code_u): Convert to...
        (rtx_writer::print_rtx_operand_code_u): ...this.
        (print_rtx_operand): Convert to...
        (rtx_writer::print_rtx_operand): ...this.
        (print_rtx): Convert to...
        (rtx_writer::print_rtx): ...this.
        (print_inline_rtx): Rewrite in terms of class rtx_writer.
        (debug_rtx): Likewise.
        (print_rtl): Convert to...
        (rtx_writer::print_rtl): ...this.
        (print_rtl): Reimplement in terms of class rtx_writer.
        (print_rtl_single): Rewrite in terms of class rtx_writer.
        (print_rtl_single_with_indent): Convert to..
        (rtx_writer::print_rtl_single_with_indent): ...this.
        (print_simple_rtl): Rewrite in terms of class rtx_writer.
        * print-rtl.h (flag_compact): Delete decl.
        (class rtx_writer): New class.
        * rtl-tests.c (selftest::assert_rtl_dump_eq): Rewrite in terms of
        class rtx_writer.

2016-10-26  Jeff Law  <law@redhat.com>

        * config/microblaze/microblaze.c (tls_mentioned_p): Avoid
        fallthru.

        * config/arc/arc.c (acr_print_operand): Adjust fallthru comment.
        (check_if_valid_sleep_operand): Add missing fallthru comment.
        (arc_register_move_cost): Increase buffer size.
        * config/arc/arc.md (cbranch4si_scratch): Add missing fallthru
        comment.
        * config/arc/predicates.md (move_str_operand): Avoid fallthru.

        * config/cr16/cr16.c (cr16_print_operand): Add missing fallthru
        comment.  Add gcc_unreachable for path that should never happen.

        * config/epiphany/epiphany.c (epiphany_print_operand): Adjust
        fallthru comment.

2016-10-26  Jakub Jelinek  <jakub@redhat.com>
            Martin Liska  <mliska@suse.cz>

        PR fortran/77973
        * gimplify.c (gimplify_adjust_omp_clauses_1): For all added map
        clauses with OMP_CLAUSE_SIZE being a decl, call omp_notice_variable
        on outer context if any.

2016-10-26  Jakub Jelinek  <jakub@redhat.com>

        * gen-pass-instances.awk (adjust_linenos): Increment pass_lines[p]
        by increment rather than double it.
        (insert_remove_pass): Strip leading whitespace from args[3].  Don't
        emit a space before args[4].
        (END): Don't emit a space before with_arg.

2016-10-26  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/sync.md (atomic_compare_and_swap<mode>_1): Add new ARMv8-M
        Baseline only alternatives to (i) hold store atomic success value in a
        return register rather than a scratch register, (ii) use a low register
        for it and to (iii) ensure the cbranchsi insn generated by the split
        respect the constraints of Thumb-1 cbranchsi4_insn and
        cbranchsi4_scratch.
        * config/arm/thumb1.md (cbranchsi4_insn): Add comment to indicate
        constraints must match those in atomic_compare_and_swap.
        (cbranchsi4_scratch): Likewise.

2016-10-26  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (arm_expand_compare_and_swap): Add new bdst local
        variable.  Add the new parameter to the insn generator.  Set that
        parameter to be CC flag for 32-bit targets, bval otherwise.  Set the
        return value from the negation of that parameter for Thumb-1, keeping
        the logic unchanged otherwise except for using bdst as the destination
        register of the compare_and_swap insn.
        (arm_split_compare_and_swap): Add explanation about how is the value
        returned to the function comment.  Rename scratch variable to
        neg_bval.  Adapt initialization of variables holding operands to the
        new operand numbers.  Use return register to hold result of store
        exclusive for Thumb-1, scratch register otherwise.  Construct the
        appropriate cbranch for Thumb-1 targets, keeping the logic unchanged
        for 32-bit targets.  Guard Z flag setting to restrict to 32bit targets.
        Use gen_cbranchsi4 rather than hand-written conditional branch to loop
        for strongly ordered compare_and_swap.
        * config/arm/predicates.md (cc_register_operand): New predicate.
        * config/arm/sync.md (atomic_compare_and_swap<mode>_1): Use a
        match_operand with the new predicate to accept either the CC flag or a
        destination register for the boolean return value, restricting it to
        CC flag only via constraint.  Adapt operand numbers accordingly.

2016-10-26  Jeff Law  <law@redhat.com>

        * config/fr30/fr30.c (fr30_print_operand): Adjust fallthru comment.

        * config/frv/frv.c (comparison_string): Do not fall through after
        an error.

        * config/iq2000/iq2000.c (iq2000_function_arg): Adjust fallthru
        comment.
        (expand_one_builtin): Add missing break.

        * config/m32c/m32c.c (encode_pattern_1): Add fallthru comment.
        (m32c_legitimate_address_p): Likewise.

        * config/m32r/m32r.c (m32r_print_operand): Adjust fallthru comment.

        * config/mcore/mcore.c (mcore_gen_compare): Adjust fallthru comments.

        * config/microblaze/microblaze.c (microblaze_function_arg): Adjust
        fallthru comment.

        * config/msp430/msp430.c (msp430_legitimate_address_p): Adjust
        fallthru comment.

        * config/nios2/nios2.c (nios2_rtx_costs): Avoid fallthru.

        * config/rl78/rl78.c (rl78_calculate_death_notes): Add fallthru
        comment.
        (rl78_asm_ctor_dtor): Increase buffer size.

        * config/stormy16/stormy16.c (xstormy16_asm_output_destrutor): Increase
        buffer size.
        (xstormy16_asm_output_constructor): Likewise.

        * config/pa/pa.c (pa_asm_output_mi_thunk): Increase buffer
        size.

        * config/h8300/h8300.c (h8300_print_operand): Adjust FALLTHRU
        comment to silence warning.

        * config/spu/spu.c (spu_sched_reorder): Add missing fallthru comment.
        (spu_legitimate_address_p): Fix logic error and add missing fallthru
        comment.

2016-10-26  Michael Matz  <matz@suse.de>

        PR tree-optimization/78060
        PR tree-optimization/78061
        PR tree-optimization/78088
        * tree-ssa-loop-split.c (easy_exit_values): New function.
        (tree_ssa_split_loops): Use it.
        (compute_new_first_bound): Change order of operations,
        fix invalid use of types.

2016-10-26  Georg-Johann Lay  <avr@gjlay.de>

        gen-pass-instances.awk is sensitive to the order in which
        passes are added; passes that appear later have to be added first.

        PR target/71676
        PR target/71678
        * config/avr/avr-passes.def: Swap order of directives for
        gen-pass-instances.awk.

2016-10-25  Jeff Law  <law@redhat.com>

        * config/vax/vax.c (vad_address_cost_1): Add missing FALLTHRU comment.
        (vax_notice_update_cc): Likewise.

2016-10-25  Eric Botcazou  <ebotcazou@adacore.com>

        * config.gcc (sparc*-*-solaris2*): Adjust.
        (sparc64-*-linux*): Likewise.
        * config/sparc/default-64.h: Rename to...
        * config/sparc/default64.h: ...this.
        * config/sparc/sparc.c (sparc_option_override): Replace TARGET_64BIT
        with TARGET_ARCH64.
        (sparc_mangle_type): Replace !TARGET_64BIT with TARGET_ARCH32.
        * config/sparc/sparc.h: Minor tweaks.
        * config/sparc/sparc.md: Replace !TARGET_64BIT and !TARGET_ARCH64 with
        TARGET_ARCH32 throughout.  Minor various tweaks throughout.

2016-10-25  David Malcolm  <dmalcolm@redhat.com>

        * input.c (fcache::file_patch): Add comment about lifetime.
        (selftest::cpp_reader_ptr): New class.
        (selftest::lexer_test): Convert m_parser from cpp_reader *
        to a cpp_reader_ptr, and move m_tempfile to after it.
        (selftest::lexer_test::lexer_test): Update for above reordering.
        (lexer_test::~lexer_test): Move cleanup of m_parser to
        cpp_reader_ptr's dtor.

2016-10-25  David Malcolm  <dmalcolm@redhat.com>

        * toplev.c (toplev::main): Remove call to
        location_adhoc_data_fini.

2016-10-25  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.h (wi::fits_to_tree_p): Accept only 0 and 1 for boolean types.
        * tree.c (int_fits_type_p): Likewise.  Adjust head comment.

2016-10-25  David Malcolm  <dmalcolm@redhat.com>

        * ggc-tests.c (forcibly_ggc_collect): Rename to...
        (selftest::forcibly_ggc_collect): ...this, and remove "static".
        (test_basic_struct): Update for above renaming.
        (test_length): Likewise.
        (test_union): Likewise.
        (test_finalization): Likewise.
        (test_deletable_global): Likewise.
        (test_inheritance): Likewise.
        (test_chain_next): Likewise.
        (test_user_struct): Likewise.
        (test_tree_marking): Likewise.
        * selftest-run-tests.c (selftest::run_tests): Call
        selftest::forcibly_ggc_collect at the end of the selftests.
        * selftest.h (selftest::forcibly_ggc_collect): New decl.

2016-10-25  Jakub Jelinek  <jakub@redhat.com>

        PR target/78102
        * optabs.def (vcondeq_optab, vec_cmpeq_optab): New optabs.
        * optabs.c (expand_vec_cond_expr): For comparison codes
        EQ_EXPR and NE_EXPR, attempt vcondeq_optab as fallback.
        (expand_vec_cmp_expr): For comparison codes
        EQ_EXPR and NE_EXPR, attempt vec_cmpeq_optab as fallback.
        * optabs-tree.h (expand_vec_cmp_expr_p, expand_vec_cond_expr_p):
        Add enum tree_code argument.
        * optabs-query.h (get_vec_cmp_eq_icode, get_vcond_eq_icode): New
        inline functions.
        * optabs-tree.c (expand_vec_cmp_expr_p): Add CODE argument.  For
        CODE EQ_EXPR or NE_EXPR, attempt to use vec_cmpeq_optab as
        fallback.
        (expand_vec_cond_expr_p): Add CODE argument.  For CODE EQ_EXPR or
        NE_EXPR, attempt to use vcondeq_optab as fallback.
        * tree-vect-generic.c (expand_vector_comparison,
        expand_vector_divmod, expand_vector_condition): Adjust
        expand_vec_cmp_expr_p and expand_vec_cond_expr_p callers.
        * tree-vect-stmts.c (vectorizable_condition,
        vectorizable_comparison): Likewise.
        * tree-vect-patterns.c (vect_recog_mixed_size_cond_pattern,
        check_bool_pattern, search_type_for_mask_1): Likewise.
        * expr.c (do_store_flag): Likewise.
        * doc/md.texi (@code{vec_cmpeq@var{m}@var{n}},
        @code{vcondeq@var{m}@var{n}}): Document.
        * config/i386/sse.md (vec_cmpeqv2div2di, vcondeq<VI8F_128:mode>v2di):
        New expanders.

2016-10-25  Jeff Law  <law@redhat.com>

        * config/v850/v850.c (v850_handle_data_area_attribute): Fix fallthru
        comment.
        (v850_output_aligned_bss): Add missing break.

        * config/m68k/m68k.c (m68k_get_reloc_decoration): Add gcc_unreachable.

2016-10-25  Martin Liska  <mliska@suse.cz>

        PR sanitizer/78106
        * sanopt.c (imm_dom_path_with_freeing_call): Handle gasm
        statements as they can also contain possibly a freeing call.

2016-10-25  H.J. Lu  <hongjiu.lu@intel.com>
            Martin Liska  <mliska@suse.cz>

        PR ipa/78099
        * common.opt: Mark flag_ipa_icf_variables as Optimization flag.
        * ipa-icf.c (sem_function::get_hash): Add target optimization
        node to hash.

2016-10-25  Wilco Dijkstra  <wdijkstr@arm.com>

        PR target/78041
        * config/arm/neon.md (ashldi3_neon): Add "r 0 i" and "&r r i" variants.
        Remove partial overlap check for shift by 1.
        (ashldi3_neon): Likewise.

2016-10-25  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/constraints.md (Q constraint): Document its use for
        Thumb-1.
        (Pf constraint): New constraint for relaxed, consume or relaxed memory
        models.
        * config/arm/sync.md (atomic_load<mode>): Add new ARMv8-M Baseline only
        alternatives to allow any register when memory model matches Pf and
        thus lda is used, but only low registers otherwise.  Use unpredicated
        output template for Thumb-1 targets.
        (atomic_store<mode>): Likewise for stl.
        (arm_load_exclusive<mode>): Add new ARMv8-M Baseline only alternative
        whose output template does not have predication.
        (arm_load_acquire_exclusive<mode>): Likewise.
        (arm_load_exclusivesi): Likewise.
        (arm_load_acquire_exclusivesi): Likewise.
        (arm_store_release_exclusive<mode>): Likewise.
        (arm_store_exclusive<mode>): Use unpredicated output template for
        Thumb-1 targets.

2016-10-25  Jakub Jelinek  <jakub@redhat.com>

        * internal-fn.def (LAUNDER): New internal function.
        * internal-fn.c (expand_LAUNDER): New function.

2016-10-25  Georg-Johann Lay  <avr@gjlay.de>
            Pitchumani Sivanupandi  <pitchumani.sivanupandi@microchip.com>

        New avr target pass to work around performance loss by PR fix.

        PR target/71676
        PR target/71678
        * config/avr/avr.md (casesi_<mode>_sequence) [qi,hi]: New insn.
        (*cmp<mode>) [qi,qq,uqq,hi,hq,uhq,ha,uha]: Rename to cmp<mode>3.
        * config/avr/predicates.md (extend_operator): New.
        * config/avr/avr-passes.def (avr_pass_casesi): Register new pass.
        * config/avr/avr-protos.h (avr_casei_sequence_check_operands)
        (make_avr_pass_casesi): New prototypes.
        * config/avr/avr.c (print-rtl.h): Include it.
        (pass_data avr_pass_data_casesi): Data for new pass.
        (avr_pass_casesi): New class implementing rtl_opt_pass .avr-casesi.
        (make_avr_pass_casesi, avr_parallel_insn_from_insns)
        (avr_is_casesi_sequence, avr_casei_sequence_check_operands)
        (avr_optimize_casesi): New functions.

2016-10-25  Georg-Johann Lay  <avr@gjlay.de>
            Pitchumani Sivanupandi  <pitchumani.sivanupandi@microchip.com>

        PR target/71676
        PR target/71678
        * config/avr/avr.md (casesi): Rewrite avoiding subregs of SI.

2016-10-24  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (gen_subprogram_die): Add DW_AT_reference or
        DW_AT_rvalue_reference attributes.

2016-10-24  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/invoke.text (Wint-in-bool-context): Update documentation.
        * value-prof.c (stringop_block_profile): Fix a warning.

2016-10-24  Martin Sebor  <msebor@redhat.com>

        PR middle-end/77735
        * builtins.c (string_length): New function.
        (c_strlen): Use string_length.  Correctly handle wide strings.
        * gimple-ssa-sprintf.c (target_max_value, target_size_max): New
        functions.
        (target_int_max): Call target_max_value.
        (format_result::knownrange): New data member.
        (fmtresult::fmtresult): Define default constructor.
        (format_integer): Use it and set format_result::knownrange.
        Handle global constants.
        (format_floating_max): Add third argument.
        (format_floating): Recompute maximum value for %a for each argument.
        (get_string_length): Use fmtresult default ctor.
        (format_string): Set format_result::knownrange.
        (format_directive): Check format_result::knownrange.
        (add_bytes): Same.  Correct caret placement in diagnostics.
        (pass_sprintf_length::compute_format_length): Set
        format_result::knownrange.
        (pass_sprintf_length::handle_gimple_call): Use target_size_max.

2016-10-24  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (ix86_in_large_data_p, ix86_expand_builtin): Use
        VAR_P (x) instead of TREE_CODE (x) == VAR_DECL.

2016-10-24  Ximin Luo  <infinity0@pwned.gg>

        PR debug/77985
        * dwarf2out.c (file_table_relative_p): Remove.
        (gen_compile_unit_die, dwarf2out_early_finish): Emit DW_AT_comp_dir
        also for absolute paths.
        * doc/tm.texi: Update.
        * doc/tm.texi.in (SDB and DWARF) <TARGET_FORCE_AT_COMP_DIR>: Remove.
        * target.def (force_at_comp_dir): Remove hook.
        * config/darwin.h (TARGET_FORCE_AT_COMP_DIR): Remove define.

2016-10-24  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (evrp_dom_walker::before_dom_children): Ignore
        backedges when identifying the single predecessor to take
        conditional info from.  Use SCEV to get at ranges for loop IVs.
        * lto-streamer-out.c (lto_write_mode_table): CSE inner mode to
        avoid false warning.

2016-10-24  Georg-Johann Lay  <avr@gjlay.de>

        PR target/78093
        * doc/extend.texi (AVR Variable Attributes) [absdata]: Document it.
        * config/avr/avr.c (AVR_SYMBOL_FLAG_TINY_ABSDATA): New macro.
        (avr_address_tiny_absdata_p): New static function.
        (avr_legitimate_address_p, avr_legitimize_address) [AVR_TINY]: Use
        it to determine validity of constant addresses.
        (avr_attribute_table) [absdata]: New variable attribute...
        (avr_handle_absdata_attribute): ...and handler.
        (avr_decl_absdata_p): New static function.
        (avr_encode_section_info) [AVR_TINY]: Use it to add flag
        AVR_SYMBOL_FLAG_TINY_ABSDATA to respective symbols_refs.
        (avr_address_cost) [AVR_TINY]: absdata addresses cost 2.

2016-10-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78076
        * tree-ssa-loop-split.c (tree_ssa_split_loops): Reset aux
        also on the loop tree root.

2016-10-24  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (ix86_fold_builtin): Handle
        IX86_BUILTIN_BEXTR{,I}{32,64}, IX86_BUILTIN_BZHI{32,64},
        IX86_BUILTIN_PDEP{32,64} and IX86_BUILTIN_PEXT{32,64}.
        (ix86_gimple_fold_builtin): Handle IX86_BUILTIN_BZHI{32,64},
        IX86_BUILTIN_PDEP{32,64} and IX86_BUILTIN_PEXT{32,64}.

2016-10-24  Martin Liska  <mliska@suse.cz>

        PR sanitizer/77966
        * opts.c (finish_options): Skip conditionally.

2016-10-23  Martin Sebor  <msebor@redhat.com>

        PR target/77837
        * config/rs6000/linux.h (TARGET_PRINTF_POINTER_FORMAT): Define.
        * config/rs6000/linux64.h (TARGET_PRINTF_POINTER_FORMAT): Likewise.

2016-10-23  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.md (cpu_feature): Minor tweak.
        (enabled): Likewise.
        (movsi_insn, movdi_insn_sp32, movdi_insn_sp64, movsf_insn,
        movdf_insn_sp32, movdf_insn_sp64, zero_extendsidi2_insn_sp64,
        sign_extendsidi2_insn, mov<VM32:mode>_insn, mov<VM64:mode>_insn_sp64,
        mov<VM64:mode>_insn_sp32, not_<code><mode>, nand<mode>_vis,
        <code>_not1<mode>_vi, <code>_not2<mode>_vis, one_cmpl<mode>2,
        fcmp<code><GCM:gcm_name>, pdistn<mode>_vis): Likewise.

2016-10-23  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc-c.c (sparc_target_macros): Replace TARGET_64BIT
        with TARGET_ARCH64.  Define __VIS to 0x400 if TARGET_VIS4.

2016-10-21  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-cores.def: Rewrite so IMP and PART are
        integer constants.
        * config/aarch64/driver-aarch64.c (struct aarch64_core_data): Change
        implementer_id to unsigned char.
        Change part_no to unsigned int.
        (AARCH64_BIG_LITTLE): New define.
        (INVALID_IMP): New define.
        (INVALID_CORE): New define.
        (cpu_data): Change the last element's implementer_id and part_no to
        integers.
        (valid_bL_string_p): Rewrite to ..
        (valid_bL_core_p): this for integers instead of strings.
        (parse_field): New function.
        (contains_string_p): Rewrite to ...
        (contains_core_p): this for integers and only for the part_no.
        (host_detect_local_cpu): Rewrite handling of implementation and
        par num to be integers; simplifying the code.

2016-10-21  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * ipa-prop.c (ipa_compute_jump_functions_for_edge): Create nonzero
        value range for pointers in more cases.

2016-10-21  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_add_constant_internal):
        Add extra argument to allow emitting the move immediate.
        Use add/sub with positive immediate.
        (aarch64_add_constant): Add inline function.
        (aarch64_add_sp): Likewise.
        (aarch64_sub_sp): Likewise.
        (aarch64_expand_prologue): Call aarch64_sub_sp.
        (aarch64_expand_epilogue): Call aarch64_add_sp.
        Decide when to leave out move.
        (aarch64_output_mi_thunk): Call aarch64_add_constant.

2016-10-21  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_layout_frame):
        Align FP callee-saves.

2016-10-21  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/adxintrin.h (_subborrow_u32, _addcarry_u32,
        _addcarryx_u32, _subborrow_u64, _addcarry_u64, _addcarryx_u64):
        Formatting fixes.
        * config/i386/rdseedintrin.h (_rdseed16_step, _rdseed32_step,
        _rdseed64_step): Likewise.
        * config/i386/tbmintrin.h (__bextri_u32): Likewise.

        PR target/78057
        * config/i386/i386.c: Include fold-const-call.h, tree-vrp.h
        and tree-ssanames.h.
        (ix86_fold_builtin): Fold IX86_BUILTIN_[LT]ZCNT{16,32,64}
        with INTEGER_CST argument.
        (ix86_gimple_fold_builtin): New function.
        (TARGET_GIMPLE_FOLD_BUILTIN): Define.

        * dwarf2out.c (ranges_table): Change into vec<dw_ranges, va_gc> *.
        (ranges_by_label): Change into vec<dw_ranges_by_label, va_gc> *.
        (ranges_table_allocated, ranges_table_in_use,
        ranges_by_label_allocated, ranges_by_label_in_use,
        RANGES_TABLE_INCREMENT): Removed.
        (add_ranges_num): Use vec_safe_push into ranges_table.
        (add_ranges_by_labels): Use vec_safe_push into ranges_by_label.
        (output_ranges): Adjust for ranges_table and ranges_by_label
        conversion from arrays to vec.
        (add_high_low_attributes, dwarf2out_finish): Adjust for range_table
        conversion from arrays to vec.
        (dwarf2out_c_finalize): Don't clear ranges_table_allocated,
        ranges_table_in_use, ranges_by_label_allocated and
        ranges_by_label_in_use.  Set ranges_by_label to NULL instead of 0.

        * dwarf2out.c (gen_variable_die): Emit DW_AT_const_expr attribute
        if needed.  Re-add origin_die variable and its initialization.

        * gimplify.c (gimplify_bind_expr): Handle oacc_declare_returns
        even for -fstack-reuse=none, or for volatile vars etc.

2016-10-21  David Malcolm  <dmalcolm@redhat.com>

        * print-rtl-function.c (flag_compact): Move extern decl to...
        * print-rtl.h (flag_compact): ...here.
        * rtl-tests.c (selftests::assert_rtl_dump_eq): New function.
        (ASSERT_RTL_DUMP_EQ): New macro.
        (selftest::test_dumping_regs): New function.
        (selftest::test_dumping_insns): New function.
        (selftest::test_uncond_jump): Add uses of ASSERT_RTL_DUMP_EQ on
        the insns.
        (selftest::rtl_tests_c_tests): Call the new test functions.

2016-10-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * cfgcleanup.c (merge_blocks_move_successor_nojumps): Adjust.
        (outgoing_edges_match): Likewise.
        (try_crossjump_to_edge): Likewise.
        * cfgrtl.c (try_redirect_by_replacing_jump): Likewise.
        (rtl_tidy_fallthru_edge): Likewise.
        * rtl.h (tablejump_p): Adjust prototype.
        * rtlanal.c (tablejump_p): Return the label as a rtx_insn *.

2016-10-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * rtl.h (label_ref_label): New function.
        (set_label_ref_label): New function.
        (LABEL_REF_LABEL): Delete.
        * alias.c (rtx_equal_for_memref_p): Adjust.
        * cfgbuild.c (make_edges): Likewise.
        (purge_dead_tablejump_edges): Likewise.
        * cfgexpand.c (convert_debug_memory_address): Likewise.
        * cfgrtl.c (patch_jump_insn): Likewise.
        * combine.c (distribute_notes): Likewise.
        * cse.c (hash_rtx_cb): Likewise.
        (exp_equiv_p): Likewise.
        (fold_rtx): Likewise.
        (check_for_label_ref): Likewise.
        * cselib.c (rtx_equal_for_cselib_1): Likewise.
        (cselib_hash_rtx): Likewise.
        * emit-rtl.c (mark_label_nuses): Likewise.
        * explow.c (convert_memory_address_addr_space_1): Likewise.
        * final.c (output_asm_label): Likewise.
        (output_addr_const): Likewise.
        * gcse.c (add_label_notes): Likewise.
        * genconfig.c (walk_insn_part): Likewise.
        * genrecog.c (validate_pattern): Likewise.
        * ifcvt.c (cond_exec_get_condition): Likewise.
        (noce_emit_store_flag): Likewise.
        (noce_get_alt_condition): Likewise.
        (noce_get_condition): Likewise.
        * jump.c (maybe_propagate_label_ref): Likewise.
        (mark_jump_label_1): Likewise.
        (redirect_exp_1): Likewise.
        (rtx_renumbered_equal_p): Likewise.
        * lra-constraints.c (operands_match_p): Likewise.
        * print-rtl.c (print_value): Likewise.
        * reload.c (find_reloads): Likewise.
        * reload1.c (set_label_offsets): Likewise.
        * reorg.c (get_branch_condition): Likewise.
        * rtl-tests.c (test_uncond_jump): Likewise.
        * rtl.c (rtx_equal_p_cb): Likewise.
        (rtx_equal_p): Likewise.
        * rtlanal.c (reg_mentioned_p): Likewise.
        (rtx_referenced_p): Likewise.
        (get_condition): Likewise.
        * varasm.c (const_hash_1): Likewise.
        (compare_constant): Likewise.
        (const_rtx_hash_1): Likewise.
        (output_constant_pool_1): Likewise.

2016-10-21  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

        PR target/71627
        * reload.c (find_valid_class_1): Allow regclass if atleast one
        regno in regclass is ok. Compute and use rclass size based on
        actually available regnos for mode in rclass.

2016-10-21  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc-modes.def (CCV): New.
        (CCXV): Likewise.
        * config/sparc/predicates.md (v_comparison_operator): New.
        (icc_comparison_operator): Add support for CCV/CCXV.
        (xcc_comparison_operator): Likewise.
        * config/sparc/sparc.c (output_cbranch): Likewise.
        (sparc_print_operand): Likewise.
        * config/sparc/sparc.md (UNSPEC_{ADD,SUB,NEG}V): New constants.
        (uaddvdi4): New expander.
        (addvdi4): Likewise.
        (uaddvdi4_sp32): New instruction.
        (addvdi4_sp32): Likewise.
        (uaddvsi4): New expander.
        (addvsi4): Likewise.
        (cmp_ccc_plus_sltu_set): New instruction.
        (cmp_ccv_plus): Likewise.
        (cmp_ccxv_plus): Likewise.
        (cmp_ccv_plus_set): Likewise.
        (cmp_ccxv_plus_set): Likewise.
        (cmp_ccv_plus_sltu_set): Likewise.
        (uaddvdi4): New expander.
        (subvdi4): Likewise.
        (usubdi4_sp32): New instruction.
        (subvdi4_sp32): Likewise.
        (usubvsi4): New expander.
        (subvsi4): Likewise.
        (cmpsi_minus_sltu_set): New instruction.
        (cmp_ccv_minus): Likewise.
        (cmp_ccxv_minus): Likewise.
        (cmp_ccv_minus_set): Likewise.
        (cmp_ccxv_minus_set): Likewise.
        (cmp_ccv_minus_sltu_set): Likewise.
        (unegvdi3): New expander.
        (negvdi3): Likewise.
        (unegdi3_sp32): New instruction.
        (negvdi3_sp32): Likewise.
        (unegvsi3): New expander.
        (negvsi3): Likewise.
        (cmp_ccc_neg_sltu_set): New instruction.
        (cmp_ccv_neg): Likewise.
        (cmp_ccxv_neg): Likewise.
        (cmp_ccv_neg_set): Likewise.
        (cmp_ccxv_neg_set): Likewise.
        (cmp_ccv_neg_sltu_set): Likewise.

        * tree-ssa-loop-split.c: Remove trailing spaces.
        * match.pd: Likewise.

2016-10-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR rtl-optimization/78038
        * ree.c (get_defs): Return NULL if a defining insn for REG cannot
        be deduced to set REG through the RTL structure.
        (make_defs_and_copies_lists): Return false on a failing get_defs call.

2016-10-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78051
        * tree-vrp.c (evrp_dom_walker::before_dom_children): Update stmt
        and mark replaced if folding did something.

2016-10-21  David Edelsohn  <dje.gcc@gmail.com>

        * config/rs6000/rs6000.c (rs6000_assemble_visibility): Swap "internal"
        and "protected" in visibility types.
        (rs6000_xcoff_declare_function_name): Fix formatting.
        (rs6000_xcoff_declare_object_name): Fix formatting.

2016-10-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_fold_builtin): Handle IX86_BUILTIN_INFQ
        and IX86_BUILTIN_HUGE_VALQ here ...
        (ix86_expand_builtin): ... not here.

2016-10-20  Jakub Jelinek  <jakub@redhat.com>

        * doc/gty.texi (for_user): Use @item next to @findex.

2016-10-20  Uros Bizjak  <ubizjak@gmail.com>

        PR target/78037
        * config/i386/bmiintrin.h (__tzcnt_u16): Call __builtin_ia32_tzcnt_u16.
        (__tzcnt_u32, _tzcnt_u32): Call __builtin_ia32_tzcnt_u32.
        (__tzcnt_u64, _tzcnt_u64): Call __builtin_ia32_tzcnt_u64.
        * config/i386/lzcntintrin.h (__lzcnt_u16): Call
        __builtin_ia32_lzcnt_u16.
        (__lzcnt_u32, _lzcnt_u32): Call __builtin_ia32_lzcnt_u32.
        (__lzcnt_u64, _lzcnt_u64): Call __builtin_ia32_lzcnt_u64.
        * config/i386/i386.md (UNSPEC_LZCNT, UNSPEC_TZCNT): New unspecs.
        (ctz<mode>2, *ctz<mode>2): Use SWI48 mode iterator.
        (bmi_tzcnt_<mode>): New expander.
        (*bmi_tzcnt_<mode>_falsedep_1): New define_insn_and_split pattern.
        (*bmi_tzcnt_<mode>_falsedep, *bmi_tzcnt_<mode>): New insn patterns.
        (clz<mode>2_lzcnt, *clz<mode>2_lzcnt): Use SWI48 mode iterator.
        (lzcnt_<mode>): New expander.
        (*lzcnt_<mode>_falsedep_1): New define_insn_and_split pattern.
        (*lzcnt_<mode>_falsedep, *lzcnt_<mode>): New insn patterns.
        * config/i386/i386-builtin-types.def (UINT_FTYPE_UINT): New.
        (UINT64_FTYPE_UINT64): New.
        * config/i386/i386-builtin.def (__builtin_clzs): Remove description.
        (__builtin_ia32_lzcnt_u16): New description.
        (__builtin_ia32_lzcnt_u32): Ditto.
        (__builtin_ia32_lzcnt_u64): Ditto.
        (__builtin_ctzs): Remove description.
        (__builtin_ia32_tzcnt_u16): New description.
        (__builtin_ia32_tzcnt_u32): Ditto.
        (__builtin_ia32_tzcnt_u64): Ditto.
        * config/i386/i386.c (ix86_expand_args_builtin): Handle
        UINT_FTYPE_UINT and UINT64_FTYPE_UINT64.

2016-10-20  Martin Liska  <mliska@suse.cz>

        PR lto/78049
        * lto-streamer-in.c (fixup_call_stmt_edges_1): Replace value
        comparison with STMT_UID_NOT_IN_RANGE.
        (fixup_call_stmt_edges): Do not fixup edges of a thunk in
        LTRANS.

2016-10-20  Eric Botcazou  <ebotcazou@adacore.com>

        * compare-elim.c (conforming_compare): Accept UNSPECs.
        (find_comparison_dom_walker::before_dom_children): Deal with
        instructions both using and killing the flags register.
        (equivalent_reg_at_start): New function extracted from...
        (try_eliminate_compare): ...here.  Use it and add support for
        registers and UNSPECs as second operand of the compare.
        * config/visium/visium-modes.def (CCV): New.
        * config/visium/predicates.md (visium_v_comparison_operator): New.
        (visium_branch_operator): Deal with CCV mode.
        * config/visium/visium.c (visium_select_cc_mode): Likewise.
        (output_cbranch): Likewise.
        * config/visium/visium.md (UNSPEC_{ADD,SUB,NEG}V): New constants.
        (uaddv<mode>4): New expander.
        (addv<mode>4): Likewise.
        (add<mode>3_insn_set_carry): New instruction.
        (add<mode>3_insn_set_overflow): Likewise.
        (addsi3_insn_set_overflow): Likewise.
        (usubv<mode>4): New expander.
        (subv<mode>4): Likewise.
        (sub<mode>3_insn_set_carry): New instruction.
        (sub<mode>3_insn_set_overflow): Likewise.
        (subsi3_insn_set_overflow): Likewise.
        (unegv<mode>3): New expander.
        (negv<mode>3): Likewise.
        (neg<mode>2_insn_set_overflow): New instruction.
        (addv_tst<mode>): Likewise.
        (subv_tst<mode>): Likewise.
        (negv_tst<mode>): Likewise.
        (cbranch<mode>4_addv_insn): New splitter and instruction.
        (cbranch<mode>4_subv_insn): Likewise.
        (cbranch<mode>4_negv_insn): Likewise.

2016-10-20  Richard Biener  <rguenther@suse.de>

        * tree-ssa-alias.c (ptrs_compare_unequal): Remove code duplication.
        Handle decls possibly not bound.
        * tree-ssa-structalias.c (get_constraint_for_ssa_var): Add
        nothing_id for decls that might not be bound if we are interested
        for the address.
        (get_constraint_for_component_ref): Deal with that.

2016-10-20  Michael Matz  <matz@suse.de>

        Loop splitting.
        * common.opt (-fsplit-loops): New flag.
        * passes.def (pass_loop_split): Add.
        * opts.c (default_options_table): Add OPT_fsplit_loops entry at -O3.
        (enable_fdo_optimizations): Add loop splitting.
        * timevar.def (TV_LOOP_SPLIT): Add.
        * tree-pass.h (make_pass_loop_split): Declare.
        * tree-ssa-loop-manip.h (rewrite_into_loop_closed_ssa_1): Declare.
        * tree-ssa-loop-unswitch.c: Include tree-ssa-loop-manip.h,
        * tree-ssa-loop-split.c: New file.
        * Makefile.in (OBJS): Add tree-ssa-loop-split.o.
        * doc/invoke.texi (fsplit-loops): Document.
        * doc/passes.texi (Loop optimization): Add paragraph about loop
        splitting.

2016-10-20  Richard Biener  <rguenther@suse.de>

        * cgraphunit.c (analyze_functions): Set node->definition to
        false to signal symbol removal to debug_hooks->late_global_decl.
        * ipa.c (symbol_table::remove_unreachable_nodes): When not in
        WPA signal symbol removal to the debuginfo machinery.
        * dwarf2out.c (dwarf2out_late_global_decl): Instead of
        using early_finised to guard the we're called for symbol
        removal case look at the symtabs definition flag.
        (gen_variable_die): Remove redundant check.

2016-10-20  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md ("prefetch"): Add fallthrough comment.

2016-10-20  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR tree-optimization/53979
        * match.pd ((a ^ b) | a -> a | b): New pattern.

2016-10-19  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa64-hpux.h (PA_INIT_FRAME_DUMMY_ASM_OP): Move to
        config/pa/pa64-hpux-lib.h.
        (PA_CRTBEGIN_HACK): Likewise.
        (DTOR_LIST_BEGIN): Likewise.

2016-10-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * config/arm/arm.c (arm_emit_coreregs_64bit_shift): Clear the result
        register only if "in" and "out" are different registers.

2016-10-19  Eric Botcazou  <ebotcazou@adacore.com>

        * omp-low.c (pass_oacc_device_lower::gate): New method.
        (execute): Always call execute_oacc_device_lower.

2016-10-19  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/77916
        PR tree-optimization/77937
        * gimple-ssa-strength-reduction.c (analyze_increments): Remove
        stopgap fix.
        (insert_initializers): Requirement of initializer for -1 should be
        based on pointer-typedness of the candidate basis.

2016-10-19  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/78005
        * tree-vect-loop-manip.c (vect_gen_prolog_loop_niters): Compute
        upper (included) bound for niters of prolog loop.
        (vect_gen_scalar_loop_niters): Change parameter VF to VFM1.
        Compute niters of scalar loop above which vectorized loop is
        preferred, as well as the upper (included) bound for the niters.
        (vect_do_peeling): Record niter bound for loops accordingly.

2016-10-19  Thomas Schwinge  <thomas@codesourcery.com>

        PR lto/77458
        * tree-core.h (enum tree_index): Put the complex types after their
        component types.
        * tree-streamer.c (verify_common_node_recorded): New function.
        (preload_common_nodes) <TREE_CODE (node) == COMPLEX_TYPE>: Use it.

2016-10-19  Martin Liska  <mliska@suse.cz>

        * cgraph.h (cgraph_edge::binds_to_current_def_p):
        Replace NULL with false as a return value.

2016-10-19  Thomas Schwinge  <thomas@codesourcery.com>

        PR tree-optimization/78024
        * omp-low.c (oacc_loop_discovery): Call clear_bb_flags before, and
        don't clear BB_VISITED after processing.

2016-10-19  Richard Biener  <rguenther@suse.de>

        * domwalk.c (dom_walker::walk): Use RPO order.

2016-10-19  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (evrp_dom_walker::evrp_dom_walker): Initialize
        stmts_to_remove.
        (evrp_dom_walker::~evrp_dom_walker): Free it.
        (evrp_dom_walker::stmts_to_remove): Add.
        (evrp_dom_walker::before_dom_children): Mark PHIs and stmts
        whose output we fully propagate for removal.  Propagate
        into BB destination PHI arguments.
        (execute_early_vrp): Remove queued stmts.  Dump value ranges
        before stmt removal.

2016-10-18  Aldy Hernandez  <aldyh@redhat.com>

        * Makefile.in (OBJS): Add gimple-ssa-warn-alloca.o.
        * passes.def: Add two instances of pass_walloca.
        * tree-pass.h (make_pass_walloca): New.
        * gimple-ssa-warn-alloca.c: New file.
        * doc/invoke.texi: Document -Walloca, -Walloca-larger-than=, and
        -Wvla-larger-than= options.

2016-10-18  Thomas Schwinge  <thomas@codesourcery.com>

        * cfg.c (clear_bb_flags): Use FOR_ALL_BB_FN.
        * config/nvptx/nvptx.c (nvptx_find_sese): Likewise.

2016-10-18  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/altivec.h (vec_xl_len): New macro.
        (vec_xst_len): New macro.
        (vec_cmpnez): New macro.
        (vec_cntlz_lsbb): New macro.
        (vec_cnttz_lsbb): New macro.
        (vec_xlx): New macro.
        (vec_xrx): New macro.
        (vec_all_nez): New C++ predicate template.
        (vec_any_eqz): New C++ predicate template.
        (vec_all_ne): Revised C++ predicate template under _ARCH_PWR9
        conditional compilation.
        (vec_any_eq): Revised C++ predicate template under _ARCH_PWR9
        conditional compilation.
        (vec_all_nez): New macro.
        (vec_any_eqz): New macro.
        (vec_all_ne): Revised macro under _ARCH_PWR9 conditional
        compilation.
        (vec_any_eq): Revised macro under _ARCH_PWR9 conditional
        compilation.
        * config/rs6000/vector.md (VI): Moved this mode iterator
        definition from altivec.md to vector.md.
        (UNSPEC_NEZ_P): New value.
        (vector_ne_<mode>_p): New expansion for implementation of
        vec_all_ne and vec_any_eq built-in functions.
        (vector_nez_<mode>_p): New expansion for implementation of
        vec_all_nez and vec_any_eqz built-in functions.
        (vector_ne_v2di_p): New expansion for implementation of vec_all_ne
        and vec_any_eq built-in function.
        (cr6_test_for_zero): New commentary to explain this expansion.
        (cr6_test_for_zero_reverse): New commentary to explain this expansion.
        (cr6_test_for_lt): New commentary to explain this expansion.
        (cr6_test_for_lt_reverse): New commentary to explain this
        expansion.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        overloaded function prototypes for vec_all_ne, vec_all_nez,
        vec_any_eq, vec_any_eqz, vec_cmpnez, vec_cntlz_lsbb,
        vec_cnttz_lsbb, vec_xl_len, vec_xst_len, vec_xlx, and vec_xrx
        built-in functions.
        (altivec_resolve_overloaded_builtin): Modify the handling of
        ALTIVEC_BUILTIN_VEC_CMPNE to use the Power9 instructions when
        the compiler is configured to support TARGET_P9_VECTOR.
        * config/rs6000/rs6000-builtin.def (BU_ALTIVEC_P): Add commentary
        to explain the special processing that is given to predicate
        built-ins introduced using this macro.
        (BU_ALTIVEC_OVERLOAD_P): Add commentary to alert maintainers to
        the special processing given to predicate built-ins introduced
        using this macro.
        (BU_VSX_P): Likewise.
        (BU_P8V_AV_P): Likewise.
        (BU_P9V_AV_P): Likewise.
        (BU_P9V_AV_X): New macro.
        (BU_P9V_64BIT_AV_X): New macro.
        (BU_P9V_VSX_3): New macro.
        (BU_P9V_OVERLOAD_P): New macro.
        (LXVL): New BU_P9V_64BIT_VSX_2.
        (VEXTUBLX): New BU_P9V_AV_2.
        (VEXTUBRX): Likewise.
        (VEXTUHLX): Likewise.
        (VEXTUHRX): Likewise.
        (VEXTUWLX): Likewise.
        (VEXTUWRX): Likewise.
        (STXVL): New BU_P9V_64BIT_AV_X.
        (VCLZLSBB): New BU_P9V_AV_1.
        (VCTZLSBB): Likewise.
        (CMPNEB): New BU_P9V_AV_2.
        (CMPNEH): Likewise.
        (CMPNEW): Likewise.
        (CMPNEF): Likewise.
        (CMPNED): Likewise.
        (VCMPNEB_P): New BU_P9V_AV_P.
        (VCMPNEH_P): Likewise.
        (VCMPNEW_P): Likewise.
        (VCMPNED_P): Likewise.
        (VCMPNEFP_P): Likewise.
        (VCMPNEDP_P): Likewise.
        (CMPNEZB): New BU_P9V_AV_2.
        (CMPNEZH): Likewise.
        (CMPNEZW): Likewise.
        (VCMPNEZB_P): New BU_P9V_AV_P.
        (VCMPNEZH_P): Likewise.
        (VCMPNEZW_P): Likewise.
        (LXVL): New BU_P9V_OVERLOAD_2.
        (STXVL): New BU_P9V_OVERLOAD_3.
        (VEXTULX): New BU_P9V_OVERLOAD_2.
        (VEXTURX): Likewise.
        (CMPNEZ): Likewise.
        (VCMPNEZ_P): New BU_P9V_OVERLOAD_P.
        (VCMPNE_P): Likewise.
        (VCLZLSBB): New BU_P9V_OVERLOAD_1.
        (VCTZLSBB): Likewise.
        * config/rs6000/rs6000.c (altivec_expand_predicate_builtin): Add
        comment to explain mode used for scratch register.
        (altivec_expand_stxvl_builtin): New function.
        (altivec_expand_builtin): Add case for new constant P9V_BUILTIN_STXVL.
        (altivec_init_builtins): Add initialized variable
        void_ftype_v16qi_pvoid_long and use this type to define the
        built-in function __builtin_altivec_stxvl.
        * config/rs6000/vsx.md (UNSPEC_LXVL): New value.
        (UNSPEC_STXVL): New value.
        (UNSPEC_VCLZLSBB): New value.
        (UNSPEC_VCTZLSBB): New value.
        (UNSPEC_VEXTUBLX): New value.
        (UNSPEC_VEXTUHLX): New value.
        (UNSPEC_VEXTUWLX): New value.
        (UNSPEC_VEXTUBRX): New value.
        (UNSPEC_VEXTUHRX): New value.
        (UNSPEC_VEXTUWRX): New value.
        (UNSPEC_VCMPNEB): New value.
        (UNSPEC_VCMPNEZB): New value.
        (UNSPEC_VCMPNEH): New value.
        (UNSPEC_VCMPNEZH): New value.
        (UNSPEC_VCMPNEW): New value.
        (UNSPEC_VCMPNEZW): New value.
        (*vsx_ne_<mode>_p): New insn for vector test all not equal with
        vector of integer modes.
        (*vsx_ne_<mode>_p): New insn for vector test all not equal with
        vector of float or double modes.
        (*vector_nez_<mode>_p): New insn for vector test all not equal or
        zero.
        (lxvl): New expand for load VSX vector with length.
        (*lxvl): New insn for load VSX vector with length.
        (stxvl): New expand for store VSX vector with length.
        (*stxvl): New insn for store VSX vector with length.
        (vcmpneb): New insn for vector of byte compare not equal.
        (vcmpnezb): New insn for vector of byte compare not equal or zero.
        (vcmpneh): New insn for vector of half word compare not equal.
        (vcmpnezh): New insn for vector of half word compare not equal or
        zero.
        (vcmpnew): New insn for vector of word compare not equal.
        (vcmpne<VSs>): New insn for vector of float or double compare not
        equal.
        (vcmpnezw): New insn for vector of word compare not equal or zero.
        (vclzlsbb): New insn for vector count leading zero
        least-significant bits byte.
        (vctzlsbb): New insn for vector count trailing zero least
        signficant bits byte.
        (vextublx): New insn for vector extract unsigned byte left
        indexed.
        (vextubrx): New insn for vector extract unsigned byte right
        indexed.
        (vextuhlx): New insn for vector extract unsigned half word left
        indexed.
        (vextuhrx): New insn for vector extract unsigned half word right
        indexed.
        (vextuwlx): New insn for vector extract unsigned word left
        indexed.
        (vextuwrx): New insn for vector extract unsigned word right
        indexed.
        * config/rs6000/rs6000.h (RS6000_BTC_CONST): Enhance comment to
        clarify intent of this constant.
        * config/rs6000/altivec.md (VI): Move this mode iterator to vsx.md.
        * doc/extend.texi (PowerPC Altivec Built-in Functions): Add
        documentation for vec_all_nez, vec_any_eqz, vec_cmpnez,
        vec_cntlz_lsbb, vec_cnttz_lsbb, vec_xl_len, vec_xst_len, vec_xlx,
        and vec_xrx functions.

2016-10-18  Andrew Pinski  <apinski@cavium.com>

        PR tree-opt/65950
        * predict.c (is_exit_with_zero_arg): New function.
        (tree_bb_level_predictions): Don't consider paths leading to exit(0)
        as nottaken.

2016-10-18  Uros Bizjak  <ubizjak@gmail.com>

        PR target/77991
        * config/i386/i386.c (legitimize_tls_address)
        <case TLS_MODEL_INITIAL_EXEC>: For TARGET_64BIT || TARGET_ANY_GNU_TLS
        convert dest to Pmode if different than Pmode.

2016-10-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/77916
        * gimple-ssa-strength-reduction.c (analyze_increments): Reinstate
        stopgap fix, as pointers with -1 increment are still broken.

2016-10-18  David Edelsohn  <dje.gcc@gmail.com>

        * config/rs6000/rs6000.c (rs6000_output_symbol_ref): Move storage
        mapping class decoration from here...
        (rs6000_xcoff_encode_section): ...to here.

        (rs6000_savres_strategy) [AIX,ELFv2]: Inline FPR save and restore
        if shrink-wrapping and optimizing for speed.

2016-10-18  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (evrp_dom_walker::before_dom_children): Handle
        not visited but non-executable predecessors.  Return taken edge.
        Simplify conditions and refactor propagation vs. folding step.

2016-10-18  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_savres_strategy): Do not select
        {SAVE,REST}_MULTIPLE if shrink-wrapping separate components.
        (rs6000_get_separate_components): Assert we do not have those
        strategies selected.

2016-10-18  Richard Biener  <rguenther@suse.de>

        * tree-ssa-propagate.h (substitute_and_fold): Adjust prototype.
        * tree-ssa-propagate.c (ssa_prop_fini): Remove final BB_VISITED
        clearing.
        (substitute_and_fold_dom_walker): Adjust constructor.
        (substitute_and_fold_dom_walker::before_dom_children): Remove
        do_dce flag and handling (always true).
        (substitute_and_fold): Likewise.
        * tree-vrp.c (vrp_finalize): Adjust.
        (execute_early_vrp): Remove final BB_VISITED clearing.
        * tree-ssa-ccp.c (ccp_finalize): Adjust.
        * tree-ssa-copy.c (fini_copy_prop): Likewise.
        * ira.c (ira): Call clear_bb_flags.

2016-10-18  Richard Biener  <rguenther@suse.de>

        * genmatch.c (dt_operand::gen_gimple_expr): Use get_name to
        get at the operand to look at with TREE_OPERAND for generic
        sub-nodes.

2016-10-18  David Malcolm  <dmalcolm@redhat.com>

        * genattrtab.c (attr_string): Use rtx_reader_ptr for call to
        copy_md_ptr_loc.
        (gen_attr): Use rtx_reader_ptr for lookup_enum_type call.
        (write_test_expr): Use rtx_reader_ptr for calls to
        fprint_c_condition.
        (write_attr_value): Likewise.
        * genconditions.c (write_one_condition): Use rtx_reader_ptr for
        call to print_md_ptr_loc.
        (write_one_condition): Likewise for calls to print_c_condition.
        * genconstants.c: Include "statistics.h" and "vec.h".
        (main): Update for conversion to member functions.
        * genemit.c (emit_c_code): Use rtx_reader_ptr for
        call to print_md_ptr_loc.
        * genenums.c: Include "statistics.h" and "vec.h".
        (main): Update for conversion of traverse_enum_types to a method.
        * genmddeps.c: Include "statistics.h" and "vec.h".
        * genoutput.c (process_template): Use rtx_reader_ptr for call to
        print_md_ptr_loc.
        * genpreds.c (write_predicate_subfunction): Likewise.
        (write_predicate_expr): Likewise for calls to print_c_condition.
        * genrecog.c (print_test): Likewise.
        * gensupport.c (process_rtx): Likewise for calls to
        copy_md_ptr_loc and join_c_conditions.
        (alter_test_for_insn): Likewise for call to join_c_conditions.
        (process_substs_on_one_elem): Likewise.
        (gen_mnemonic_setattr): Update for move of string_obstack to a
        field of rtx_reader.
        (mnemonic_htab_callback): Likewise.  Fix formatting.
        (gen_mnemonic_attr): Likewise.
        * gentarget-def.c (def_target_insn): Use rtx_reader_ptr for calls
        to print_c_condition.
        * read-md.c: Include "statistics.h" and "vec.h".
        (string_obstack): Convert this global to field "m_string_obstack"
        of class rtx_reader.
        (ptr_locs): Likewise, as "m_ptr_locs".
        (ptr_loc_obstack): Likewise, as "m_ptr_loc_obstack".
        (joined_conditions): Likewise, as "m_joined_conditions".
        (joined_conditions_obstack): Likewise, as "m_joined_conditions_obstack".
        (md_constants): Likewise, as "m_md_constants".
        (enum_types): Likewise, as "m_enum_types".
        (set_md_ptr_loc): Convert to...
        (rtx_reader::set_md_ptr_loc): ...member function.
        (get_md_ptr_loc): Convert to...
        (rtx_reader::get_md_ptr_loc): ...member function.
        (copy_md_ptr_loc): Convert to...
        (rtx_reader::copy_md_ptr_loc): ...member function.
        (fprint_md_ptr_loc): Convert to...
        (rtx_reader::fprint_md_ptr_loc): ...member function.
        (print_md_ptr_loc): Convert to...
        (rtx_reader::print_md_ptr_loc): ...member function.
        (join_c_conditions): Convert to...
        (rtx_reader::join_c_conditions): ...member function.
        (fprint_c_condition): Convert to...
        (rtx_reader::fprint_c_condition): ...member function.
        (print_c_condition): Convert to...
        (rtx_reader::print_c_condition): ...member function.
        (read_name): Convert to...
        (rtx_reader::read_name): ...member function.
        (read_escape): Convert to...
        (rtx_reader::read_escape): ...member function.
        (read_quoted_string): Convert to...
        (rtx_reader::read_quoted_string): ...member function.
        (read_braced_string): Convert to...
        (rtx_reader::read_braced_string): ...member function.
        (read_string): Convert to...
        (rtx_reader::read_string): ...member function.
        (read_skip_construct): Convert to...
        (rtx_reader::read_skip_construct): ...member function.
        (handle_constants): Convert to...
        (rtx_reader::handle_constants): ...member function.
        (traverse_md_constants): Convert to...
        (rtx_reader::traverse_md_constants): ...member function.
        (handle_enum): Convert to...
        (rtx_reader::handle_enum): ...member function.
        (lookup_enum_type): Convert to...
        (rtx_reader::lookup_enum_type): ...member function.
        (traverse_enum_types): Convert to...
        (rtx_reader::traverse_enum_types): ...member function.
        (rtx_reader::rtx_reader): Move initializations
        of various former global data from rtx_reader::read_md_files to
        here, as fields, along with the call to unlock_std_streams.
        (rtx_reader::~rtx_reader): Clean up m_base_dir, and clean up
        the new fields.
        (rtx_reader::read_md_files): Move initializations of various
        global data from here to the ctor.
        * read-md.h (read_name): Convert to...
        (rtx_reader::read_name): ...member function.
        (rtx_reader::read_escape): New method decl.
        (read_quoted_string): Convert to...
        (rtx_reader::read_quoted_string): ...member function.
        (rtx_reader::read_braced_string): New method decl.
        (read_string): Convert to...
        (rtx_reader::read_string): ...member function.
        (rtx_reader::read_skip_construct): New method decl.
        (rtx_reader::set_md_ptr_loc): New method decl.
        (rtx_reader::get_md_ptr_loc): New method decl.
        (copy_md_ptr_loc): Convert to...
        (rtx_reader::copy_md_ptr_loc): ...member function.
        (fprint_md_ptr_loc): Convert to...
        (rtx_reader::fprint_md_ptr_loc): ...member function.
        (print_md_ptr_loc): Convert to...
        (rtx_reader::print_md_ptr_loc): ...member function.
        (rtx_reader::lookup_enum_type): New method decl.
        (rtx_reader::traverse_enum_types): New method decl.
        (rtx_reader::handle_constants): New method decl.
        (traverse_md_constants): Convert to...
        (rtx_reader::traverse_md_constants): ...member function.
        (rtx_reader::handle_enum): New method decl.
        (rtx_reader::join_c_conditions): New method decl.
        (fprint_c_condition): Convert to...
        (rtx_reader::fprint_c_condition): ...member function.
        (print_c_condition): Convert to...
        (rtx_reader::print_c_condition): ...member function.
        (rtx_reader::apply_iterator_to_string): New method decl.
        (rtx_reader::copy_rtx_for_iterators): New method decl.
        (rtx_reader::read_conditions): New method decl.
        (rtx_reader::record_potential_iterator_use): New method decl.
        (rtx_reader::read_mapping): New method decl.
        (rtx_reader::read_rtx): New method decl.
        (rtx_reader::read_rtx_code): New method decl.
        (rtx_reader::read_rtx_operand): New method decl.
        (rtx_reader::read_nested_rtx): New method decl.
        (rtx_reader::read_rtx_variadic): New method decl.
        (rtx_reader::get_string_obstack): New method.
        (rtx_reader::get_md_constants): New method.
        (string_obstack): Convert global variable decl to...
        (rtx_reader::m_string_obstack): ...this new field.
        (rtx_reader::m_ptr_locs): New field.
        (rtx_reader::m_ptr_loc_obstack): New field.
        (rtx_reader::m_joined_conditions): New field.
        (rtx_reader::m_joined_conditions_obstack): New field.
        (rtx_reader::m_md_constants): New field.
        (rtx_reader::m_enum_types): New field.
        * read-rtl.c (apply_iterator_to_string): Convert to...
        (rtx_reader::apply_iterator_to_string): ...member function.
        (copy_rtx_for_iterators): Convert to...
        (rtx_reader::copy_rtx_for_iterators): ...member function.
        (add_condition_to_string): Use rtx_reader_ptr for
        calls join_c_conditions.
        (apply_iterators): Use rtx_reader_ptr for calls to
        join_c_conditions and copy_rtx_for_iterators.
        (read_conditions): Convert to...
        (rtx_reader::read_conditions): ...member function.
        (record_potential_iterator_use): Convert to...
        (rtx_reader::record_potential_iterator_use): ...member function.
        (read_mapping): Convert to...
        (rtx_reader::read_mapping): ...member function.
        (read_subst_mapping): Use rtx_reader_ptr for read_string call.
        (read_rtx): Convert to...
        (rtx_reader::read_rtx): ...member function.
        (read_rtx_code): Convert to...
        (rtx_reader::read_rtx_code): ...member function.
        (read_rtx_operand): Convert to...
        (rtx_reader::read_rtx_operand): ...member function.  Update for move
        of string_obstack to a field.
        (read_nested_rtx): Convert to..
        (rtx_reader::read_nested_rtx): ...member function.
        (read_rtx_variadic): Convert to..
        (rtx_reader::read_rtx_variadic): ...member function.

2016-10-18  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * tree-vrp.c (get_value_range): Check get_ptr_nonnull.

2016-10-18  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * ipa-prop.c (ipa_compute_jump_functions_for_edge): Set value range
        for pointer type too.
        (ipcp_update_vr): set_ptr_nonnull for pointer.

2016-10-18  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * tree-ssa-alias.h (pt_solution_singleton_or_null_p): Renamed from
        pt_solution_singleton_p.
        * tree-ssa-ccp.c (fold_builtin_alloca_with_align): Use renamed
        pt_solution_singleton_or_null_p from pt_solution_singleton_p.
        * tree-ssa-structalias.c (find_what_p_points_to): Preserve
        pointer nonnull computed by VRP.
        Also Conservatively set pt.null to 1.
        (pt_solution_reset): Conservatively set pt.null to 1.
        (pt_solution_singleton_or_null_p): Renamed from
        pt_solution_singleton_p.
        * tree-ssanames.h (set_ptr_nonnull): Declare.
        (get_ptr_nonnull): Likewise.
        * tree-ssanames.c (set_ptr_nonnull): New.
        (get_ptr_nonnull): Likewise.
        * tree-vrp.c (vrp_finalize): Set ptr that are nonnull.
        (evrp_dom_walker::before_dom_children): Likewise.

2016-10-17  Eric Botcazou  <ebotcazou@adacore.com>

        * config/i386/i386.h (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): Move to...
        * config/i386/i386.c (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): ...here.
        * config/ia64/ia64.h (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): Move to...
        * config/ia64/ia64.c (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): ...here.
        * config/rs6000/rs6000.h (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): Move to.
        * config/rs6000/rs6000.c (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): ...here.
        (rs6000_option_override_internal): Clear it if ABI_AIX.
        * config/sparc/sparc.h (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): Move to...
        * config/sparc/sparc.c (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): ... here.

2016-10-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * gimple-ssa-strength-reduction.c (record_increment): Remove
        garbage comment.

2016-10-17  Eric Botcazou  <ebotcazou@adacore.com>

        * expmed.c (expand_shift_1): Add MAY_FAIL parameter and do not assert
        that the result is non-zero if it is true.
        (maybe_expand_shift): New wrapper around expand_shift_1.
        (emit_store_flag): Call maybe_expand_shift in lieu of expand_shift.

2016-10-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/77916
        * gimple-ssa-strength-reduction.c (create_add_on_incoming_edge):
        Don't allow a MINUS_EXPR for pointer arithmetic for either known
        or unknown strides.
        (record_increment): Increments of -1 for unknown strides just use
        a multiply initializer like other negative values.
        (analyze_increments): Remove stopgap solution for -1 increment
        applied to pointer arithmetic.

2016-10-17  Yuri Rumyantsev  <ysrumyan@gmail.com>

        * dominance.c (dom_info::dom_info): Add new constructor for region
        which is vector of basic blocks.
        (dom_init): New method to initialize members common for both
        constructors.
        (dom_info::dom_info): Invoke dom_init for partial initialization.
        (dom_info::get_idom): Add check to corner cases on basic blocks which
        are not in region.
        (dom_info::calc_dfs_tree): Check M_FAKE_EXIT_EDGE instead of M_REVERSE
        to detect unreachable bbs.
        (dom_info::calc_idoms): Likewise.
        (compute_dom_fast_query_in_region): New function.
        (calculate_dominance_info_for_region): Likewise.
        (free_dominance_info_for_region): Likewise.
        * dominance.h: Add prototypes for introduced region-based functions
        tree-if-conv.c: (build_region): New function.
        (if_convertible_loop_p_1): Invoke local version of post-dominators
        calculation before basic block predication with subsequent freeing
        post-dominator info.
        (tree_if_conversion): Remove free of post-dominator info
        (pass_if_conversion::execute): Delete detection of infinite loops
        and fake edges to exit block since post-dominator calculation is
        performed per if-converted loop only.

2016-10-17  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR target/77308
        * config/arm/arm.c (arm_emit_coreregs_64bit_shift): Clear the result
        register explicitly.
        * config/arm/arm.md (ashldi3, ashrdi3, lshrdi3): Don't FAIL if
        optimizing for size.

2016-10-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c: Delete inclusion of
        cortex-a57-fma-steering.h.
        (aarch64_override_options): Delete call
        to aarch64_register_fma_steering.
        * config/aarch64/aarch64-protos.h (make_pass_fma_steering): Declare.
        * config/aarch64/cortex-a57-fma-steering.h: Delete.
        * config/aarch64/aarch64-passes.def: New file.
        * config/aarch64/cortex-a57-fma-steering.c
        (aarch64_register_fma_steering): Delete definition.
        (make_pass_fma_steering): Remove static qualifier.
        * config/aarch64/t-aarch64 (PASSES_EXTRA): New directive.
        (cortex-a57-fma-steering.o): Remove dependency on
        cortex-a57-fma-steering.h.

2016-10-17  Eric Botcazou  <ebotcazou@adacore.com>

        * explow.c (validize_mem): Do not modify the argument in-place.

2016-10-17  Thomas Schwinge  <thomas@codesourcery.com>

        * tree-streamer.c (record_common_node): Explicitly list expected
        tree codes.

2016-10-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77988
        * tree-vrp.c (remove_range_assertions): Use replace_uses_by.

2016-10-17  Marek Polacek  <polacek@redhat.com>

        * Makefile.in (C_COMMON_OBJS): Add c-family/c-attribs.o.

2016-10-17  Richard Biener  <rguenther@suse.de>

        * bb-reorder.c (reorder_basic_blocks_simple): Clear BB_VISITED
        before using it.

2016-10-17  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR tree-optimization/71636
        * match.pd (x & ((1 << b) - 1) -> x & ~(~0 << b)): New pattern.

2016-10-17  Richard Biener  <rguenther@suse.de>

        * gimplify.c (gimplify_function_tree): Do not move the outer
        binds block.

2016-10-17  Jakub Jelinek  <jakub@redhat.com>

        * langhooks.h (struct lang_hooks_for_decls): Remove
        function_decl_explicit_p, function_decl_deleted_p and
        function_decl_defaulted hooks.  Add decl_dwarf_attribute hook.
        * langhooks-def.h (lhd_decl_dwarf_attribute): Declare.
        (LANG_HOOKS_FUNCTION_DECL_EXPLICIT_P,
        LANG_HOOKS_FUNCTION_DECL_DELETED_P,
        LANG_HOOKS_FUNCTION_DECL_DEFAULTED): Remove.
        (LANG_HOOKS_DECL_DWARF_ATTRIBUTE): Define.
        (LANG_HOOKS_DECLS): Remove LANG_HOOKS_FUNCTION_DECL_EXPLICIT_P,
        LANG_HOOKS_FUNCTION_DECL_DELETED_P and
        LANG_HOOKS_FUNCTION_DECL_DEFAULTED.  Add
        LANG_HOOKS_DECL_DWARF_ATTRIBUTE.
        * langhooks.c (lhd_decl_dwarf_attribute): New function.
        * dwarf2out.c (gen_subprogram_die): Use
        lang_hooks.decls.decl_dwarf_attribute instead of
        lang_hooks.decls.function_decl_*.

2016-10-16  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/37139
        PR ada/67205
        * common.opt (-ftrampolines): New option.
        * doc/invoke.texi (Code Gen Options): Document it.
        * doc/tm.texi.in (Trampolines): Add TARGET_CUSTOM_FUNCTION_DESCRIPTORS.
        * doc/tm.texi: Regenerate.
        * builtins.def: Add init_descriptor and adjust_descriptor.
        * builtins.c (expand_builtin_init_trampoline): Do not issue a warning
        on platforms with descriptors.
        (expand_builtin_init_descriptor): New function.
        (expand_builtin_adjust_descriptor): Likewise.
        (expand_builtin) <BUILT_IN_INIT_DESCRIPTOR>: New case.
        <BUILT_IN_ADJUST_DESCRIPTOR>: Likewise.
        * calls.c (prepare_call_address): Remove SIBCALLP parameter and add
        FLAGS parameter.  Deal with indirect calls by descriptor and adjust.
        Set STATIC_CHAIN_REG_P on the static chain register, if any.
        (call_expr_flags): Set ECF_BY_DESCRIPTOR for calls by descriptor.
        (expand_call): Likewise.  Move around call to prepare_call_address
        and pass all flags to it.
        * cfgexpand.c (expand_call_stmt): Reinstate CALL_EXPR_BY_DESCRIPTOR.
        * gimple.h (enum gf_mask): New GF_CALL_BY_DESCRIPTOR value.
        (gimple_call_set_by_descriptor): New setter.
        (gimple_call_by_descriptor_p): New getter.
        * gimple.c (gimple_build_call_from_tree): SetCALL_EXPR_BY_DESCRIPTOR.
        (gimple_call_flags): Deal with GF_CALL_BY_DESCRIPTOR.
        * langhooks.h (struct lang_hooks): Add custom_function_descriptors.
        * langhooks-def.h (LANG_HOOKS_CUSTOM_FUNCTION_DESCRIPTORS): Define.
        (LANG_HOOKS_INITIALIZER): Add LANG_HOOKS_CUSTOM_FUNCTION_DESCRIPTORS.
        * rtl.h (STATIC_CHAIN_REG_P): New macro.
        * rtlanal.c (find_first_parameter_load): Skip static chain registers.
        * target.def (custom_function_descriptors): New POD hook.
        * tree.h (FUNC_ADDR_BY_DESCRIPTOR): New flag on ADDR_EXPR.
        (CALL_EXPR_BY_DESCRIPTOR): New flag on CALL_EXPR.
        * tree-core.h (ECF_BY_DESCRIPTOR): New mask.
        Document FUNC_ADDR_BY_DESCRIPTOR and CALL_EXPR_BY_DESCRIPTOR.
        * tree.c (make_node_stat) <tcc_declaration>: Use FUNCTION_ALIGNMENT.
        (build_common_builtin_nodes): Initialize init_descriptor and
        adjust_descriptor.
        * tree-nested.c: Include target.h.
        (struct nesting_info): Add 'any_descr_created' field.
        (get_descriptor_type): New function.
        (lookup_element_for_decl): New function extracted from...
        (create_field_for_decl): Likewise.
        (lookup_tramp_for_decl): ...here.  Adjust.
        (lookup_descr_for_decl): New function.
        (convert_tramp_reference_op): Deal with descriptors.
        (build_init_call_stmt): New function extracted from...
        (finalize_nesting_tree_1): ...here.  Adjust and deal with descriptors.
        * defaults.h (FUNCTION_ALIGNMENT): Define.
        (TRAMPOLINE_ALIGNMENT): Set to above instead of FUNCTION_BOUNDARY.
        * config/i386/i386.h (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): Define.
        * config/ia64/ia64.h (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): Likewise.
        * config/rs6000/rs6000.h (TARGET_CUSTOM_FUNCTION_DESCRIPTORS):Likewise.
        * config/sparc/sparc.h (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): Likewise.

2016-10-16  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.c (sparc_expand_vector_init): Only accept literal
        constants in CONST_VECTORs.

2016-10-15  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.c (sparc_expand_vec_perm_bmask): Use a scratch
        register as destination of bmask.
        (vector_init_bshuffle): Likewise.
        * config/sparc/sparc.md (vec_perm_constv8qi): Likewise.
        (bmaskdi_vis): Enable only in 64-bit mode.

2016-10-15  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_get_separate_components): Do not
        make LR a separately shrink-wrapped component unless savres_strategy
        contains all of {SAVE,REST}_INLINE_{GPRS,FPRS,VRS}.  Do not wrap
        GPRs unless both {SAVE,REST}_INLINE_GPRS.  Do not disallow all
        wrapping when not both {SAVE,REST}_INLINE_GPRS.

2016-10-15  Eric Botcazou  <ebotcazou@adacore.com>

        * optabs.c (expand_parity): Fix mode mismatch, add final conversion
        and keep looping on failure.

2016-10-14  David Malcolm  <dmalcolm@redhat.com>

        * print-rtl-function.c (print_edge): Omit "(flags)" when none are
        set.
        (print_rtx_function): Update example in comment for...
        * print-rtl.c (print_rtx_operand_code_r): In compact mode, print
        non-virtual pseudos with a '%' sigil followed by the regno, offset
        by (LAST_VIRTUAL_REGISTER + 1), so that the first non-virtual
        pseudo is dumped as "%0".

2016-10-14  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/77959
        * expr.c (expand_expr_real_1) <case CONST_DECL>: For EXPAND_WRITE
        return a MEM.

2016-10-14  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc-passes.def: New file.
        * config/sparc/t-sparc (PASSES_EXTRA): Add sparc-passes.def.
        * config/sparc/sparc-protos.h (make_pass_work_around_errata): New.
        * config/sparc/sparc.c (sparc_option_override): Don't register passes.

2016-10-14  Pat Haugen  <pthaugen@us.ibm.com>

        * loop-unroll.c (unroll_loop_runtime_iterations): Condition initial
        loop peel to loops with exit test at the beginning.

2016-10-14  Pat Haugen  <pthaugen@us.ibm.com>

        PR rtl-optimization/68212
        * cfgloopmanip.c (duplicate_loop_to_header_edge): Use preheader edge
        frequency when computing scale factor for peeled copies.
        * loop-unroll.c (unroll_loop_runtime_iterations): Fix freq/count
        values for switch/peel blocks/edges.

2016-10-14  Pedro Alves  <palves@redhat.com>

        * coretypes.h (OVERRIDE, FINAL): Delete, moved to include/ansidecl.h.

2016-10-14  Catherine Moore  <clm@codesourcery.com>

        * config/mips/mips.c (mips_prepare_pch_save): Initialize
        micromips_globals to zero.

2016-10-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77979
        * tree-vrp.c (compare_name_with_value): Handle released SSA names
        in the equivalency sets.
        (compare_names): Likewise.

2016-10-14  Martin Liska  <mliska@suse.cz>

        * builtins.h(target_char_cst_p): Declare the function.
        * builtins.c (fold_builtin_memchr): Remove.
        (target_char_cst_p): Move the function from gimple-fold.c.
        (fold_builtin_3): Do not call the function.
        * gimple-fold.c (gimple_fold_builtin_memchr): New function.
        (gimple_fold_builtin): Call the function.
        * fold-const-call.c (fold_const_call_1): Handle CFN_BUILT_IN_MEMCHR.

2016-10-14  Martin Liska  <mliska@suse.cz>

        * builtins.c (fold_builtin_strcmp): Remove function.
        (fold_builtin_strncmp): Likewise.
        (fold_builtin_2): Remove call of the function.
        (fold_builtin_3): Likewise.
        * fold-const-call.c (fold_const_call): Add constant folding
        for CFN_BUILT_IN_STRCASECMP and CFN_BUILT_IN_STRNCASECMP.
        * fold-const-call.h (build_cmp_result): Declare the function.
        * gimple-fold.c (gimple_load_first_char): New function.
        (gimple_fold_builtin_string_compare): Likewise.
        (gimple_fold_builtin): Call the function.

2016-10-14  Nathan Sidwell  <nathan@acm.org>

        * gcov-io.c (gcov_open): Deconstify 'mode'.

2016-10-14  Martin Liska  <mliska@suse.cz>

        * fold-const.c (c_getstr): Support of properly \0-terminated
        string constants.  New argument is added.
        * fold-const.h: New argument is added.

2016-10-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch):
        New function.
        (aarch64_print_hint_for_core): Likewise.
        (aarch64_print_hint_for_arch): Likewise.
        (aarch64_validate_march): Use it.  Fix indentation in type signature.
        (aarch64_validate_mcpu): Use aarch64_print_hint_for_core_or_arch.
        (aarch64_validate_mtune): Likewise.
        (aarch64_handle_attr_arch): Likewise.
        (aarch64_handle_attr_cpu): Likewise.
        (aarch64_handle_attr_tune): Likewise.

2016-10-14  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * optabs.def: Remove optab function gen_int_libfunc for sdivmod_optab
        and udivmod_optab.

2016-10-13  Andreas Schwab  <schwab@linux-m68k.org>

        * config/m68k/m68k.c (m68k_option_override): Check
        opt_fstack_limit_symbol_arg and opt_fstack_limit_register_no
        instead of stack_limit_rtx.

2016-10-13  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (gen_member_die): Handle inline static data member
        definitions.

2016-10-13  Nathan Sidwell  <nathan@acm.org>

        * gcov-io.c (gcov_open): Fix documentation.  Simplify setting
        gcov_var.mode.  Remove unnecessary fstat.

2016-10-13  Segher Boessenkool  <segher@kernel.crashing.org>

        PR bootstrap/77962
        * function.c (thread_prologue_and_epilogue_insns): Call all
        make_*logue_seq in the same order as traditional.  Call them
        all a second time if shrink_wrapped_separate.

2016-10-13  Marek Polacek  <polacek@redhat.com>

        * Makefile.in (insn-attrtab.o-warn, insn-dfatab.o-warn,
        insn-latencytab.o-warn, insn-output.o-warn, insn-emit.o-warn): Don't
        use -Wno-error.

2016-10-13  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/77937
        * gimple-ssa-strength-reduction.c (analyze_increments): Set cost
        to infinite when we have a pointer with an increment of -1.

2016-10-13  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * coretypes.h: Move MEMMODEL_* macros and enum memmodel definition
        into ...
        * memmodel.h: This file.
        * alias.c, asan.c, auto-inc-dec.c, bb-reorder.c, bt-load.c,
          caller-save.c, calls.c, ccmp.c, cfgbuild.c, cfgcleanup.c,
          cfgexpand.c, cfgloopanal.c, cfgrtl.c, cilk-common.c, combine.c,
          combine-stack-adj.c, common/config/aarch64/aarch64-common.c,
          common/config/arm/arm-common.c, common/config/bfin/bfin-common.c,
          common/config/c6x/c6x-common.c, common/config/i386/i386-common.c,
          common/config/ia64/ia64-common.c, common/config/nvptx/nvptx-common.c,
          compare-elim.c, config/aarch64/aarch64-builtins.c,
          config/aarch64/aarch64-c.c, config/aarch64/cortex-a57-fma-steering.c,
          config/arc/arc.c, config/arc/arc-c.c, config/arm/arm-builtins.c,
          config/arm/arm-c.c, config/avr/avr.c, config/avr/avr-c.c,
          config/avr/avr-log.c, config/bfin/bfin.c, config/c6x/c6x.c,
          config/cr16/cr16.c, config/cris/cris.c, config/darwin-c.c,
          config/darwin.c, config/epiphany/epiphany.c,
          config/epiphany/mode-switch-use.c,
          config/epiphany/resolve-sw-modes.c, config/fr30/fr30.c,
          config/frv/frv.c, config/ft32/ft32.c, config/h8300/h8300.c,
          config/i386/i386-c.c, config/i386/winnt.c, config/iq2000/iq2000.c,
          config/lm32/lm32.c, config/m32c/m32c.c, config/m32r/m32r.c,
          config/m68k/m68k.c, config/mcore/mcore.c,
          config/microblaze/microblaze.c, config/mmix/mmix.c,
          config/mn10300/mn10300.c, config/moxie/moxie.c,
          config/msp430/msp430.c, config/nds32/nds32-cost.c,
          config/nds32/nds32-intrinsic.c, config/nds32/nds32-md-auxiliary.c,
          config/nds32/nds32-memory-manipulation.c,
          config/nds32/nds32-predicates.c, config/nds32/nds32.c,
          config/nios2/nios2.c, config/nvptx/nvptx.c, config/pa/pa.c,
          config/pdp11/pdp11.c, config/rl78/rl78.c, config/rs6000/rs6000-c.c,
          config/rx/rx.c, config/s390/s390-c.c, config/s390/s390.c,
          config/sh/sh.c, config/sh/sh-c.c, config/sh/sh-mem.cc,
          config/sh/sh_treg_combine.cc, config/sol2.c, config/spu/spu.c,
          config/stormy16/stormy16.c, config/tilegx/tilegx.c,
          config/tilepro/tilepro.c, config/v850/v850.c, config/vax/vax.c,
          config/visium/visium.c, config/vms/vms-c.c, config/xtensa/xtensa.c,
          coverage.c, cppbuiltin.c, cprop.c, cse.c, cselib.c, dbxout.c, dce.c,
          df-core.c, df-problems.c, df-scan.c, dojump.c, dse.c, dwarf2asm.c,
          dwarf2cfi.c, dwarf2out.c, emit-rtl.c, except.c, explow.c, expmed.c,
          expr.c, final.c, fold-const.c, function.c, fwprop.c, gcse.c,
          ggc-page.c, haifa-sched.c, hsa-brig.c, hsa-gen.c, hw-doloop.c,
          ifcvt.c, init-regs.c, internal-fn.c, ira-build.c, ira-color.c,
          ira-conflicts.c, ira-costs.c, ira-emit.c, ira-lives.c, ira.c, jump.c,
          loop-doloop.c, loop-invariant.c, loop-iv.c, loop-unroll.c,
          lower-subreg.c, lra.c, lra-assigns.c, lra-coalesce.c,
          lra-constraints.c, lra-eliminations.c, lra-lives.c, lra-remat.c,
          lra-spills.c, mode-switching.c, modulo-sched.c, omp-low.c, passes.c,
          postreload-gcse.c, postreload.c, predict.c, print-rtl-function.c,
          recog.c, ree.c, reg-stack.c, regcprop.c, reginfo.c, regrename.c,
          reload.c, reload1.c, reorg.c, resource.c, rtl-chkp.c, rtl-tests.c,
          rtlanal.c, rtlhooks.c, sched-deps.c, sched-rgn.c, sdbout.c,
          sel-sched-ir.c, sel-sched.c, shrink-wrap.c, simplify-rtx.c,
          stack-ptr-mod.c, stmt.c, stor-layout.c, target-globals.c,
          targhooks.c, toplev.c, tree-nested.c, tree-outof-ssa.c,
          tree-profile.c, tree-ssa-coalesce.c, tree-ssa-ifcombine.c,
          tree-ssa-loop-ivopts.c, tree-ssa-loop.c, tree-ssa-reassoc.c,
          tree-ssa-sccvn.c, tree-vect-data-refs.c, ubsan.c, valtrack.c,
          var-tracking.c, varasm.c: Include memmodel.h.
        * genattrtab.c (write_header): Include memmodel.h in generated file.
        * genautomata.c (main): Likewise.
        * gengtype.c (open_base_files): Likewise.
        * genopinit.c (main): Likewise.
        * genconditions.c (write_header): Include memmodel.h earlier in
        generated file.
        * genemit.c (main): Likewise.
        * genoutput.c (output_prologue): Likewise.
        * genpeep.c (main): Likewise.
        * genpreds.c (write_insn_preds_c): Likewise.
        * genrecog.c (write_header): Likewise.
        * Makefile.in (PLUGIN_HEADERS): Include memmodel.h

2016-10-13  David Malcolm  <dmalcolm@redhat.com>

        * function-tests.c (selftest::test_expansion_to_rtl): Add "true"
        for new "compact" param of print_rtx_function.  Check for "cinsn"
        rather than "insn".
        * print-rtl-function.c (flag_compact): New decl.
        (print_rtx_function): Add param "compact" and use it to set
        flag_compact, adding a description of the effect to the leading
        comment, and updating the example output.
        * print-rtl.c (flag_compact): New variable.
        (print_rtx_operand_code_0): Omit the JUMP_LABEL reference in compact
        mode.
        (print_rtx_operand_code_i): When printing source locations, wrap
        xloc.file in quotes.  Don't print INSN_CODEs in compact mode.
        (print_rtx_operand_code_r): Don't print regnos for hard regs and
        virtuals in compact mode.
        (print_rtx_operand_code_u): Don't print insn UIDs in compact mode,
        apart from in LABEL_REFs.
        (print_rtx_operand): In case 'w', don't print in hex in compact mode.
        Don't print basic block ids in compact mode.
        (print_rtx):  In compact mode, prefix the code of insns with "c",
        only print the INSN_UID of CODE_LABELs, and omit their LABEL_NUSES.
        * print-rtl.h (print_rtx_function): Add "compact" param.

2016-10-13  Richard Earnshaw  <rearnsha@arm.com>

        * arm.h (TARGET_VFP): Delete.
        (TARGET_VFPD32): Remove references to TARGET_VFP.
        (TARGET_VFP3, TARGET_VFP5): Likewise.
        (TARGET_VFP_SINGLE, TARGET_VFP_DOUBLE): Likewise.
        (TARGET_NEON_FP16): Likewise.
        (TARGET_FMA): Likewise.
        (TARGET_CRYPTO): Likewise.
        (TARGET_NEON): Likewise.
        (SECONDARY_OUTPUT_RELOAD_CLASS): Likewise.
        (FUNCTION_ARG_REGNO_P): Likewise.
        * arm.c (arm_option_check_internal): Likewise.
        (arm_option_override): Likewise.
        (use_return_insn): Likewise.
        (arm_function_value_regno_p): Likewise.
        (arm_apply_result_size): Likewise.
        (use_vfp_abi): Likewise.
        (arm_legitimate_address_outer_p): Likewise.
        (thumb2_legitimate_address_p): Likewise.
        (arm_legitimate_index_p): Likewise.
        (thumb2_legitimate_index_p): Likewise.
        (arm_legitimate_address): Likewise.
        (arm_get_vfp_saved_size): Likewise.
        (arm_emit_vfp_multi_reg_pop): Likewise.
        (arm_get_frame_offsets): Likewise.
        (arm_save_coproc_regs): Likewise.
        (arm_hard_regno_mode_ok): Likewise.
        (arm_expand_epilogue_apcs_frame): Likewise.
        (arm_expand_epilogue): Likewise.
        (arm_file_start): Likewise.
        (arm_conditional_register_usage): Likewise.
        (arm_validize_comparison): Use vfp_compare_operand directly.
        * arm-builtins.c (arm_init_builtins): Remove references to TARGET_VFP.
        (arm_expand_vfp_builtin): Use TARGET_HARD_FLOAT for detecting
        unsupported usage.
        (arm_atomic_assign_expand_fenv): Likewise.
        * arm.md (divsf3): Likewise.
        (arm_negsi2): Likewise.
        (absdf2): Likewise.
        (arm_movdi): Likewise.
        (arm_movt): Likewise.
        (cbranchsf4): Change predicate to vfp_compare_operand.
        (cbranchdf4): Change predicate to vfp_compare_operand.
        (cstorehf4): Change predicate to vfp_compare_operand.
        (cstoresf4): Change predicate to vfp_compare_operand.
        (cstoredf4): Change predicate to vfp_compare_operand.
        (vfp_pop_multiple_with_writeback): Remove references to TARGET_VFP.
        (movhi_insn_arch4, movhi_bytes): Likewise.
        * constraints.md (Dt): Likewise.
        (Dp): Likewise.
        * iterators.md (SDF): Likewise.
        * predicates.md (arm_float_compare_operand): Delete.
        (const_double_vcvt_power_of_two_reciprocal): Remove references to
        TARGET_VFP.
        (const_double_vcvt_power_of_two): Likewise.
        * thumb2.md thumb2_movsi_insn): Likewise.
        * vfp.md (arm_movhi_vfp, thumb2_movhi_vfp): Likewise.
        (movhf_vfp): Likewise.
        (arm_movsi_vfp, thumb2_movsi_vfp): Likewise.
        (movdi_vfp, movdi_vfp_cortexa8): Likewise.
        (movsf_vfp, thumb2_movsf_vfp): Likewise.
        (movdf_vfp, thumb2_movdf_vfp): Likewise.
        (movsfcc_vfp, abssf2_vfp, negsf2_vfp, addsf3_vfp): Likewise.
        (subsf3_vfp, divsf3_vfp): Likewise.
        (mulsf3_vfp, mulsf3negsf_vfp, negmulsf3_vfp): Likewise.
        (mulsf3addsf_vfp, (mulsf3subsf_vfp, mulsf3negsfaddsf_vfp): Likewise.
        (mulsf3negsfsubsf_vfp): Likewise.
        (truncsisf2_vfp, fixuns_truncsfsi2, floatsisf2_vfp): Likewise.
        (floatunssisf2, sqrtsf2_vfp): Likewise.
        (movcc_vfp): Likewise.
        (cmpsf_split_vfp, cmpsf_trap_split_vfp): Likewise.
        (cmpsf_vfp, cmpsf_trap_vfp): Likewise.
        (push_multi_vfp): Likewise.
        (set_fpscr, get_fpscr): Likewise.
        * arm-c.c (arm_cpu_builtins): Unconditionally define __VFP_FP__.

2016-10-13  Richard Earnshaw  <rearnsha@arm.com>

        * arm.h (TARGET_VFP): Unconditionally define to 1.
        (arm_fpu_desc): Remove 'model' field.
        (TARGET_FPU_MODEL): Delete.
        * arm.c (all_fpus): Don't initialize the model field.
        (arm_can_inline_p): Don't check the FPU model.
        * arm-fpus.def: Remove redundant model field from all FPU
        descriptions.

2016-10-13  Richard Biener  <rguenther@suse.de>

        PR middle-end/77826
        * genmatch.c (struct capture): Add value_match member.
        (commutate): Preserve value_match.
        (lower_opt_convert): Likewise.
        (lower_cond): Likewise.
        (replace_id): Likewise.
        (struct dt_operand): Add value_match member.
        (decision_tree::cmp_node): Compare it.
        (decision_tree::insert_operand): Honor it when finding and
        when appending a DT_MATCH.
        (dt_operand::gen_match_op): Generate a type check after
        operand_equal_p if ! value_match for both GENERIC and GIMPLE.
        (parser::get_internal_capture_id): New helper.
        (parser::finish_match_operand): New function lowering @@<id>.
        (parser::parse_capture): Parse @@<id> as value-match.
        (parser::parse_expr): Use get_internal_capture_id.
        (parser::parse_simplify): Call finish_match_operand.
        (walk_captures): New helper.
        * match.pd (X - (X / Y) * Y -> X % Y): Use value-matching instead
        of operand_equal_p.
        ((X /[ex] A) * A -> X): Likewise.
        ((X | Y) ^ X -> Y & ~ X): Handle constants properly by using
        convert[12] and value-matching.
        ((A | B) & (A | C) ->  A | (B & C)): Likewise.
        ((X | Y) | Y -> X | Y): Likewise.
        ((X ^ Y) ^ Y -> X): Likewise.
        (A - (A & B) -> ~B & A): Likewise.
        ((T)(P + A) - (T)P -> (T) A): Likewise.
        ((T)P - (T)(P + A) -> -(T) A): Likewise.
        ((T)(P + A) - (T)(P + B) -> (T)A - (T)B): Likewise.
        * doc/match-and-simplify.texi: Amend capture section.

2016-10-13  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (umul_600): Remove predicated variant.
        (umul64_600): Likewise.

2016-10-13  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.h (INSN_LENGTH_ALIGNMENT): Change.

2016-10-13  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop.c (loop_niters_no_overflow): New func.
        (vect_transform_loop): Call loop_niters_no_overflow.  Pass the
        no-overflow information to vect_do_peeling_for_loop_bound and
        vect_gen_vector_loop_niters.

2016-10-13  Bin Cheng  <bin.cheng@arm.com>

        * tree-predcom.c (tree_predictive_commoning_loop): Skip loop that only
        iterates 1 time.

2016-10-13  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop-manip.c (adjust_vec_debug_stmts): Don't release
        adjust_vec automatically.
        (slpeel_add_loop_guard): Remove param cond_expr_stmt_list.  Rename
        param exit_bb to guard_to.
        (slpeel_checking_verify_cfg_after_peeling):
        (set_prologue_iterations):
        (create_lcssa_for_virtual_phi): New func which is factored out from
        slpeel_tree_peel_loop_to_edge.
        (slpeel_tree_peel_loop_to_edge):
        (iv_phi_p): New func.
        (vect_can_advance_ivs_p): Call iv_phi_p.
        (vect_update_ivs_after_vectorizer): Call iv_phi_p.  Directly insert
        new gimple stmts in basic block.
        (vect_gen_niters_for_prolog_loop): Rename to...
        (vect_gen_prolog_loop_niters): ...Rename from.  Change parameters and
        adjust implementation.
        (vect_update_inits_of_drs): Fix code style issue.  Convert niters to
        sizetype if necessary.
        (vect_build_loop_niters): Move to here from tree-vect-loop.c.  Change
        it to external function.
        (vect_gen_scalar_loop_niters, vect_gen_vector_loop_niters): New.
        (vect_gen_vector_loop_niters_mult_vf): New.
        (slpeel_update_phi_nodes_for_loops): New.
        (slpeel_update_phi_nodes_for_guard1): Reimplement.
        (find_guard_arg, slpeel_update_phi_nodes_for_guard2): Reimplement.
        (slpeel_update_phi_nodes_for_lcssa, vect_do_peeling): New.
        * tree-vect-loop.c (vect_build_loop_niters): Move to file
        tree-vect-loop-manip.c
        (vect_generate_tmps_on_preheader): Delete.
        (vect_transform_loop): Rename vectorization_factor to vf.  Call
        vect_do_peeling instead of vect_do_peeling-* functions.
        * tree-vectorizer.h (vect_do_peeling): New decl.
        (vect_build_loop_niters, vect_gen_vector_loop_niters): New decls.
        (vect_do_peeling_for_loop_bound): Delete.
        (vect_do_peeling_for_alignment): Delete.

2016-10-13  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop-manip.c (slpeel_tree_duplicate_loop_to_edge_cfg): Put
        duplicated loop after its preheader and after the original loop.

2016-10-13  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop.c (vect_analyze_loop_2): Check and skip loop if it
        has no enough iterations for LOOP_VINFO_PEELING_FOR_GAPS.

2016-10-13  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop.c (vectorizable_live_operation): Support handling
        for live variable outside loop but not in lcssa form.

2016-10-13  Bin Cheng  <bin.cheng@arm.com>

        * cfg.c (reset_original_copy_tables): New func.
        * cfg.h (reset_original_copy_tables): New decl.

2016-10-13  Jakub Jelinek  <jakub@redhat.com>

        PR c/77946
        * tree.h (FALLTHROUGH_LABEL_P): Use private_flag instead of
        public_flag.
        * varasm.c (default_binds_local_p_3): Formatting fix.

2016-10-13  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop-manip.c (slpeel_can_duplicate_loop_p): Fix code
        style issue.
        (vect_do_peeling_for_loop_bound, vect_do_peeling_for_alignment):
        Remove useless code.

2016-10-13  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/77943
        * tree-ssa-tail-merge.c (merge_stmts_p): Do not merge BBs with
        a different EH landing pads.

2016-10-13  Jakub Jelinek  <jakub@redhat.com>

        PR target/77957
        * hooks.h (hook_tree_void_null): Declare.
        * hooks.c (hook_tree_void_null): New function.
        * langhooks.c (lhd_return_null_tree_v): Remove.
        * langhooks-def.h (lhd_return_null_tree_v): Remove.
        * cfgexpand.c (stack_protect_prologue): If guard_decl is NULL,
        set y to const0_rtx.
        * function.c (stack_protect_epilogue): Likewise.
        * config/tilepro/tilepro.c (TARGET_STACK_PROTECT_GUARD): Redefine
        if TARGET_THREAD_SSP_OFFSET is defined.
        * config/s390/s390.c (TARGET_STACK_PROTECT_GUARD): Likewise.
        * config/sparc/sparc.c (TARGET_STACK_PROTECT_GUARD): Likewise.
        * config/tilegx/tilegx.c (TARGET_STACK_PROTECT_GUARD): Likewise.
        * config/rs6000/rs6000.c (TARGET_STACK_PROTECT_GUARD): Likewise.
        * config/i386/i386.c (TARGET_STACK_PROTECT_GUARD): Likewise.
        (ix86_stack_protect_guard): New function.

2016-10-13  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (tree_add_const_value_attribute): Do not try
        rtl_for_decl_init during early phase.
        (gen_variable_die): Do not create locations during early phase.
        (gen_label_die): Likewise.
        (decls_for_scope): Do not waste time handling BLOCK_NONLOCALIZED_VARs
        twice.

2016-10-12  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (evrp_dom_walker::try_find_new_range): Renamed from
        try_add_new_range and made to eturn new range.
        (evrp_dom_walker::before_dom_children): Push op1 value range before
        pushing op0 value range.

2016-10-12  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/77937
        * gimple-ssa-strength-reduction.c (analyze_increments): Use
        POINTER_TYPE_P on the candidate type to determine whether
        candidates in this chain require pointer arithmetic.

2016-10-12  Eric Botcazou  <ebotcazou@adacore.com>

        * config/visium/visium.c (visium_gimplify_va_arg): Emit a big-endian
        correction if the type is smaller than a word.
        (visium_select_cc_mode): Add ... fall through ... comment.

2016-10-12  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (machine_function): Add new fields
        gpr_is_wrapped_separately and lr_is_wrapped_separately.
        (TARGET_SHRINK_WRAP_GET_SEPARATE_COMPONENTS,
        TARGET_SHRINK_WRAP_COMPONENTS_FOR_BB,
        TARGET_SHRINK_WRAP_DISQUALIFY_COMPONENTS,
        TARGET_SHRINK_WRAP_EMIT_PROLOGUE_COMPONENTS,
        TARGET_SHRINK_WRAP_EMIT_EPILOGUE_COMPONENTS,
        TARGET_SHRINK_WRAP_SET_HANDLED_COMPONENTS): Define.
        (rs6000_get_separate_components): New function.
        (rs6000_components_for_bb): New function.
        (rs6000_disqualify_components): New function.
        (rs6000_emit_prologue_components): New function.
        (rs6000_emit_epilogue_components): New function.
        (rs6000_set_handled_components): New function.
        (rs6000_emit_prologue): Don't emit LR save if lr_is_wrapped_separately.
        Don't emit GPR saves if gpr_is_wrapped_separately for that register.
        (restore_saved_lr): Don't restore LR if lr_is_wrapped_separately.
        (rs6000_emit_epilogue): Don't emit GPR restores if
        gpr_is_wrapped_separately for that register.  Don't make a
        REG_CFA_RESTORE note for registers we did not restore, either.

2016-10-12  Segher Boessenkool  <segher@kernel.crashing.org>

        * function.c (thread_prologue_and_epilogue_insns): Call
        try_shrink_wrapping_separate.  Compute the prologue_seq afterwards,
        if it has possibly changed.  Compute the split_prologue_seq and
        epilogue_seq later, too.
        * shrink-wrap.c: #include cfgbuild.h and insn-config.h.
        (dump_components): New function.
        (struct sw): New struct.
        (SW): New function.
        (init_separate_shrink_wrap): New function.
        (fini_separate_shrink_wrap): New function.
        (place_prologue_for_one_component): New function.
        (spread_components): New function.
        (disqualify_problematic_components): New function.
        (emit_common_heads_for_components): New function.
        (emit_common_tails_for_components): New function.
        (insert_prologue_epilogue_for_components): New function.
        (try_shrink_wrapping_separate): New function.
        * shrink-wrap.h: Declare try_shrink_wrapping_separate.

2016-10-12  Segher Boessenkool  <segher@kernel.crashing.org>

        * regrename.c (build_def_use): Invalidate chains that have a
        REG_CFA_RESTORE on some instruction.

2016-10-12  Segher Boessenkool  <segher@kernel.crashing.org>

        * dce.c (delete_unmarked_insns): Don't delete instructions with
        a REG_CFA_RESTORE note.

2016-10-12  Segher Boessenkool  <segher@kernel.crashing.org>

        * common.opt (-fshrink-wrap-separate): New flag.
        * doc/invoke.texi: Document it.
        * doc/tm.texi.in (Shrink-wrapping separate components): New subsection.
        * doc/tm.texi: Regenerate.
        * emit-rtl.h (struct rtl_data): New field shrink_wrapped_separate.
        * target.def (shrink_wrap): New hook vector.
        (get_separate_components, components_for_bb, disqualify_components,
        emit_prologue_components, emit_epilogue_components,
        set_handled_components): New hooks.

2016-10-12  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_return_in_memory): Warn for
        vector return by reference only if -Wpsabi.
        (rs6000_pass_by_reference): Similarly, for argument passing.

2016-10-12  David Malcolm  <dmalcolm@redhat.com>

        * function-tests.c: Include "print-rtl.h".
        (selftest::test_expansion_to_rtl): Call print_rtx_function on the
        function, and verify what is dumped.
        * print-rtl-function.c (print_edge): New function.
        (begin_any_block): New function.
        (end_any_block): New function.
        (can_have_basic_block_p): New function.
        (print_rtx_function): Track the basic blocks of insns in the
        chain, wrapping those that are within blocks within "(block)"
        directives.  Remove the "(cfg)" directive.

2016-10-12  David Malcolm  <dmalcolm@redhat.com>

        * selftest.c (selftest::read_file): New function.
        (selftest::test_read_file): New function.
        (selftest::selftest_c_tests): Call test_read_file.
        * selftest.h (selftest::read_file): New decl.

2016-10-12  Richard Biener  <rguenther@suse.de>

        PR debug/77947
        * cgraphunit.c (analyze_functions): Preserve cgraph nodes
        function context.

2016-10-12  Thomas Schwinge  <thomas@codesourcery.com>

        * lto-streamer.c: Fix LTO_STREAMER_DEBUG build.

        * dwarf2out.c (dwarf2_lineno_debug_hooks): Use
        dwarf2out_assembly_start.

        * Makefile.in (SELFTEST_FLAGS): Add -nostdinc.

        * Makefile.in (SELFTEST_FLAGS): New variable.
        (s-selftest, selftest-gdb, selftest-valgrind): Use it.

        * vmsdbgout.c (vmsdbg_debug_hooks): Add filename parameter to
        early_finish hook.

2016-10-12  Georg-Johann Lay  <avr@gjlay.de>

        * rtl.h (struct rtx_def): Comment how RTX_FLAGS will be
        dumped in RTL dumps.

2016-10-12  Martin Liska  <mliska@suse.cz>

        * gimple-fold.c (create_tmp_reg_or_ssa_name): New function.
        (gimple_fold_builtin_memory_op): Use the function.
        (gimple_fold_builtin_strchr): Likewise.
        (gimple_fold_builtin_strcat): Likewise.
        (gimple_build): Likewise.

2016-10-12  Nathan Sidwell  <nathan@acm.org>

        * diagnostic.c (diagnostc_report_diagnostic): Fix formatting.

2016-10-12  Pierre-Marie de Rodat  <derodat@adacore.com>

        * dwarf2out.c (int_loc_descriptor): Generate opcodes for another
        equivalent 32-bit constant (modulo 2**32) when that yields
        smaller instructions.
        (size_of_int_loc_descriptor): Update accordingly.

2016-10-12  Pierre-Marie de Rodat  <derodat@adacore.com>

        * dwarf2out.c (dwarf2out_early_global_decl): For nested
        functions, call dwarf2out_decl on the parent function first.

2016-10-12  Richard Biener  <rguenther@suse.de>

        * match.pd ((X /[ex] A) * A -> X): Remove unnecessary constraint
        on the conversion.

2016-10-12  Richard Biener  <rguenther@suse.de>

        * tree-ssa-propagate.c
        (substitute_and_fold_dom_walker::before_dom_children): Do not
        ignore ASSERT_EXPRs but only preserve them.
        * tree-vrp.c (remove_range_assertions): Deal with ASSERT_EXPRs
        that have been propagated into.
        (vrp_finalize): Enable DCE for substitute_and_fold.

2016-10-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77920
        * tree-vrp.c (simplify_div_or_mod_using_ranges): Simplify.
        (simplify_min_or_max_using_ranges): Pass in gsi and use it.
        (simplify_abs_using_ranges): Likewise.
        (simplify_conversion_using_ranges): Likewise.
        (simplify_stmt_using_ranges): Adjust.

2016-10-12  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/77929
        * tree-ssa-reassoc.c (optimize_range_tests_var_bound): Handle
        (*ops)[ranges[i].idx]->op != ranges[i].exp case.

2016-10-12  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        PR target/77934
        * config/rs6000/vmx.md (vsx_concat_<mode>): The mtvsrdd instruction
        needs a base register for arg 1.

2016-10-12  Jakub Jelinek  <jakub@redhat.com>

        * common.opt (Wimplicit-fallthrough) Turn into alias to
        -Wimplicit-fallthrough=3.  Remove EnabledBy.
        (Wimplicit-fallthrough=): New option.
        * gimplify.c (warn_implicit_fallthrough_r): Use
        OPT_Wimplicit_fallthrough_ instead of OPT_Wimplicit_fallthrough.
        * doc/invoke.texi (-Wimplicit-fallthrough): Document as alias
        to -Wimplicit-fallthrough=3.
        (-Wimplicit-fallthrough=): Document.

2016-10-11  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.c (emit_scc_insn): Remove direct support for EQ
        and GEU in DImode if TARGET_SUBXC.
        * config/sparc/sparc.md (seqdi<W:mode>_zero): Remove TARGET_SUBXC.
        (seqdi<W:mode>_zero_subxc): Delete.
        (neg_seqdi<W:mode>_zero): Remove TARGET_VIS3.
        (neg_seqdi<W:mode>_zero_vis3): Delete.
        (plus_seqdi<W:mode>_zero): Likewise.
        (minus_seqdi<W:mode>_zero): Likewise.
        (plus_plus_sltu<W:mode>): Accept only register.
        (addx<W:mode>): Likewise.
        (plus_sltu<W:mode>_vis3): Likewise.
        (plus_plus_sltu<W:mode>_vis3): Likewise.
        (neg_sgeu<W:mode>_vis3): Delete.
        (minus_sgeu<W:mode>_vis3): Likewise.
        (addxc<W:mode>): Accept only registers.
        (neg_sltu<W:mode>_subxc): Write %%g0 instead of 0.
        (minus_neg_sltu<W:mode>_subxc): Accept only register.
        (neg_plus_sltu<W:mode>_subxc): Likewise.
        (minus_sltu<W:mode>_subxc): Write %%g0 instead of 0.
        (minus_minus_sltu<W:mode>_subxc): Accept only register.
        (sgeu<W:mode>_insn_subxc): Delete.
        (plus_sgeu<W:mode>_subxc): Likewise.
        (subxc<W:mode>): Accept only register.
        (scc splitter): Split always GEU again.

2016-10-11  Jeff Law  <law@redhat.com>

        PR tree-optimization/77424
        * tree-ssa-threadupdate.c (thread_through_all_blocks): Remove
        dead conditionals.  Assert that all e->aux fields are NULL.

2016-10-11  David Malcolm  <dmalcolm@redhat.com>

        * print-rtl.c (print_rtx): Rename "i" to "idx".  Split out the
        operand-printing "switch" statement into...
        (print_rtx_operand_code_0): ...this new function, ...
        (print_rtx_operand_code_e): ...this new function, ...
        (print_rtx_operand_codes_E_and_V): ...this new function, ...
        (print_rtx_operand_code_i): ...this new function, ...
        (print_rtx_operand_code_r): ...this new function, ...
        (print_rtx_operand_code_u): ...this new function, ...
        (print_rtx_operand): ...and this new function.

2016-10-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha-passes.def: New file.
        * config/alpha/t-alpha: New file.
        * config/alpha/alpha-protos.h (gcc::context, rtl_opt_pass): Declare.
        (make_pass_handle_trap_shadows): New prototype.
        (make_pass_align_insns): Ditto.
        * config/alpha/alpha.c (alpha_option_override): Don't register
        passes here.
        * config.gcc (alpha*-*-*) Add alpha/t-alpha to tmake_file.

2016-10-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/77924
        * config/rs6000/rs6000.c (rs6000_init_builtins): Only create the
        distinct __ibm128 IBM extended double type if long doubles are
        128-bits and the default format for long double is IEEE 128-bit.

2016-10-11  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (DEBUG_STR_OFFSETS_SECTION): Remove conditional.
        (init_sections_and_labels): Use DEBUG_DWO_STR_OFFSETS_SECTION.
        (verify_die): New function.
        (dwarf2out_finish): Call it.
        (output_line_info): Handle case of -gsplit-dwarf without
        DWARF2_ASM_LINE_DEBUG_INFO.

2016-10-11  Richard Biener  <rguenther@suse.de>

        PR debug/77931
        * gimple-low.c (lower_gimple_bind): Handle arbitrary common
        sub-chains of BLOCK_VARS and gimple_bind_vars.

2016-10-11  Venkataramanan Kumar  <Venkataramanan.kumar@amd.com>

        * config/i386/znver1.md : Fix imov/imovx load type reservations.

2016-10-11  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.opt (msubxc): New option.
        * doc/invoke.texi (SPARC options): Document it and tidy up.
        * doc/tm.texi.in (Condition Codes): Adjust SPARC example.
        * doc/tm.texi: Regenerate.
        * config/sparc/sparc-modes.def (CC_NOOV): Rename into...
        (CCNZ): ...this.
        (CCX_NOOV): Rename into...
        (CCXNZ): ...this.
        (CCC): New.
        (CCXC): Likewise.
        * config/sparc/predicates.m (fcc_register_operand): Simplify.
        (fcc0_register_operand): Likewise.
        (icc_register_operand): New.
        (icc_or_fcc_register_operand): Simplify.
        (nz_comparison_operator): New.
        (c_comparison_operator): Likewise.
        (noov_compare_operator): Rename into...
        (icc_comparison_operator): ...this.  Use above predicates.
        (noov_compare64_operator): Rename into...
        (v9_comparison_operator): ...this and tidy up.
        (fcc_comparison_operator): New.
        (icc_or_fcc_comparison_operator): Likewise.
        (v9_register_compare_operator): Rename info...
        (v9_register_comparison_operator): ...this.
        * config/sparc/sparc.c (TARGET_FIXED_CONDITION_CODE_REGS): Define.
        (sparc_option_override): Remove redundant VIS masks and add MASK_SUBXC
        for Niagara-7.
        (sparc_fixed_condition_code_regs): New function.
        (select_cc_mode): Remove ATTRIBUTE_UNUSED.  Adjust for CCNZ/CCXNZ
        renaming and add support for CCC/CCXC.
        (output_cbranch): Likewise.
        (sparc_print_operand): Likewise.
        (gen_v9_scc): Remove obsolete assertion.
        (emit_scc_insn): Emit RTL directly for EQ and NE.  Add direct support
        for EQ in DImode if TARGET_SUBXC.  Remove test on TARGET_VIS3 for GEU.
        (output_cbcond): Remove bogus handling of CC modes.
        (sparc_register_move_cost): Return 100 for NO_REGS.
        * config/sparc/sparc.md (W): New mode iterator.
        (length): Adjust for noov_compare64_operator renaming.
        (cmpsi_sne): New instruction.
        (cmpdi_sne): Likewise.
        (seqdi_special): Delete.
        (seqdi_special): Likewise.
        (snesi<P:mode>_special): Likewise.
        (snedi_special): Likewise.
        (snedi_special_vis3): Likewise.
        (snesi patterns): Use W iterator.
        (snedi patterns): Likewise.  Add TARGET_SUBXC patterns.
        (sltu patterns): Likewise.
        (sgeu patterns): Likewise.
        (scc splitter): Do not split GEU in DImode if TARGET_SUBXC.
        (normal_branch): Use icc_comparison_operator predicate.
        (inverted_branch): Likewise.
        (cbcond_sp32): Use comparison_operator predicate.
        (cbcond_sp64): Likewise.
        (normal_int_branch_sp64): Adjust for renaming
        (inverted_int_branch_sp64): Likewise.
        (mov<I:mode>_cc_reg_sp64): Likewise.
        (movsf_cc_reg_sp6): Likewise.
        (movdf_cc_reg_sp64): Likewise.
        (movtf_cc_reg_hq_sp64): Likewise.
        (movtf_cc_reg_sp64): Likewise.
        (mov<I:mode>_cc_v9): Use icc_or_fcc_comparison_operator predicate.
        (movsf_cc_v9): Likewise.
        (movdf_cc_v9): Likewise.
        (movtf_cc_hq_v9): Likewise.
        (movtf_cc_v9): Likewise.
        (adddi3): Call gen_adddi3_sp32.
        (adddi3_insn_sp32): Rename to...
        (adddi3_sp32): ...this.  Accept only register_operand as operand #1
        and use CCCmode for the carry.
        (addx_extend_sp32): Use CCCmode for the carry.
        (addx_extend_sp64): Delete.
        (adddi3_extend_sp32): Use CCCmode for the carry.
        (cmp_plus patterns): Use CCNZ/CCXNZ mode and add C variants.
        (subdi3): Call gen_subdi3_sp32.
        (subdi3_insn_sp32): Rename to...
        (subdi3_sp32): ...this and use CCmode for the carry.
        (subx_extend_sp32): Use CCCmode for the carry.
        (subx_extend_sp64): Delete.
        (subdi3_extend_sp32): Use CCmode for the carry.
        (cmp_minus patterns): Use CCNZ/CCXNZ mode and add C variants.
        (negdi3): Call gen_negdi3_sp32.
        (negdi3_sp32): Use CCCmode for the carry.
        (cmp_neg patterns): Use CCNZ/CCXNZ mode and add C variants.
        (cmp_nz_ashift_1): Use CCNZ mode.
        (cmp_nz_set_ashift_1): Likewise.
        (ctrapsi4): Use comparison_operator predicate.
        (ctrapdi4): Likewise.
        (trapsi_insn): Use icc_comparison_operator predicate.
        (trapdi_insn): Likewise.
        (edge8 patterns): Use CCNZmode.
        (edge16 patterns): Likewise.
        (edge32 patterns): Likewise.

2016-10-11  Eric Botcazou  <ebotcazou@adacore.com>

        * config/visium/visium-modes.def (CC_NOOV): Rename into...
        (CCNZ): ...this.
        (CC_BTST): Rename into...
        (CCC): ...this.
        * config/visium/predicates.md (real_add_operand): New.
        (visium_btst_operator): Rename into...
        (visium_equality_comparison_operator): ...this.
        (visium_noov_operator): Rename into...
        (visium_nz_comparison_operator): ...this.
        (visium_c_comparison_operator): New.
        (visium_branch_operator): Adjust and deal with all CC modes.
        * config/visium/visium.c (visium_adjust_cost): Adjust.
        (visium_split_double_add): Use the *_set_carry patterns.
        (visium_select_cc_mode): Add support for CCC mode and adjust.
        (output_cbranch): Adjust and use the carry-based operators for
        floating-point comparisons.
        * config/visium/visium.md (flags_subst_arith): Adjust.
        (addsi3_insn_set_carry): New instruction.
        (subsi3_insn_set_carry): Likewise.
        (negsi2_insn_set_carry): Likewise.
        (btst): Adjust.
        (cmp<mode>_sne): Likewise.
        (cbranch<mode>4): Use ordered_comparison_operator.
        (cbranch<mode>4_insn): Likewise.
        (cbranchsi4_btst_insn): Adjust.

2016-10-11  Tom de Vries  <tom@codesourcery.com>

        PR middle-end/77558
        * builtins.c (std_canonical_va_list_type): Remove RECORD_TYPE
        special-casing.

2016-10-11  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.h (build_complex_type): Add second parameter with default.
        * tree.c (build_complex_type): Add NAMED second parameter and adjust
        recursive call.  Create a TYPE_DECL only if NAMED is true.
        (build_common_tree_nodes): Pass true in calls to build_complex_type.

2016-10-11  Georg-Johann Lay  <avr@gjlay.de>

        New avr-passes.def to register AVR specific passes.

        * config/avr/avr-passes.def: New file.
        * config/avr/t-avr (PASSES_EXTRA): Add avr-passes.def.
        * config/avr/avr-protos.h (gcc::context, rtl_opt_pass): Declare.
        (make_avr_pass_recompute_note): New proto.
        * config/avr/avr.c (make_avr_pass_recompute_notes): New function.
        (avr_pass_recompute_notes): Use anonymous namespace.
        (avr_register_passes): Remove function...
        (avr_option_override): ...and its call.

2016-10-11  Robert Suchanek  <robert.suchanek@imgtec.com>

        * config/mips/mips-cpus.def: Replace PTF_AVOID_BRANCHLIKELY with
        PTF_AVOID_BRANCHLIKELY_ALWAYS for generic architecture and with
        PTF_AVOID_BRANCHLIKELY_SPEED for others.
        (mips2, mips3, mips4): Add PTF_AVOID_BRANCHLIKELY_SIZE to tune
        flags.
        * config/mips/mips.c (mips_option_override): Enable the branch
        likely depending on the tune flags and optimization level.
        * config/mips/mips.h (PTF_AVOID_BRANCHLIKELY): Remove.
        (PTF_AVOID_BRANCHLIKELY_SPEED): Define.
        (PTF_AVOID_BRANCHLIKELY_SIZE): Likewise.
        (PTF_AVOID_BRANCHLIKELY_ALWAYS): Likewise.

2016-10-11  Richard Biener  <rguenther@suse.de>

        * lto-streamer-out.c (collect_block_tree_leafs): New helper.
        (output_function): Properly stream the whole block tree.
        * lto-streamer-in.c (input_function): Likewise.

2016-10-11  Marek Polacek  <polacek@redhat.com>

        * Makefile.in (C_COMMON_OBJS): Add c-family/c-warn.o.

2016-10-11  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * tree-vrp.c (evrp_dom_walker::try_add_new_range): New.
        (evrp_dom_walker::before_dom_children): Infer and push new value
        ranges for x in y < x.

2016-10-10  Joseph Myers  <joseph@codesourcery.com>

        PR target/77586
        * config/ia64/ia64.c (ia64_libgcc_floating_mode_supported_p)
        (TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Remove.
        * config/ia64/elf.h (IA64_NO_LIBGCC_TFMODE): Likewise.
        * config/ia64/freebsd.h (IA64_NO_LIBGCC_TFMODE): Likewise.
        * config/ia64/vms.h (IA64_NO_LIBGCC_XFMODE)
        (IA64_NO_LIBGCC_TFMODE): Likewise.

2016-10-11  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * tree-vrp.c (vrp_intersect_ranges_1): Allocate bitmap before
          copying.

2016-10-10  Andreas Tobler  <andreast@gcc.gnu.org>

        * config.gcc: Add aarch64-*-freebsd* support.
        * config.host: Likewise.
        * config/aarch64/aarch64-freebsd.h: New file.
        * config/aarch64/t-aarch64-freebsd: Ditto.

2016-10-10  Jeff Law  <law@redhat.com>

        PR tree-optimization/71947
        * tree-ssa-dom.c (cprop_into_stmt): Avoid replacing A with B, then
        B with A within a single statement.

2016-10-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/77824
        * gimple-ssa-strength-reduction.c (stmt_cost): Explicitly return
        zero cost for copies.
        (find_candidates_dom_walker::before_dom_children): Replace
        MODIFY_EXPR with SSA_NAME.
        (replace_mult_candidate): Likewise.
        (replace_profitable_candidates): Likewise.

2016-10-10  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.h: Wrap more macros args in brackets and fix

2016-10-10  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/gen-avr-mmcu-texi.c (string.h): Include.

2016-10-10  Andreas Schwab  <schwab@suse.de>

        PR target/77738
        * config/ia64/ia64.md ("doloop_end"): Reject if mode of loop
        pseudo is not DImode.

2016-10-10  Claudiu Zissulescu  <claziss@synopsys.com>

        * common/config/arc/arc-common.c (arc_option_optimization_table):
        Remove compact casesi option.
        * config/arc/arc.c (arc_override_options): Use compact casesi
        option only for pre-ARCv2 cores.
        * doc/invoke.texi (mcompact-casesi): Update text.

2016-10-09  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        * config/rs6000/rs6000.h (TARGET_EFFICIENT_OVERLAPPING_UNALIGNED):
        Add macro to say we can efficiently handle overlapping unaligned
        loads.
        * config/rs6000/rs6000.c (expand_block_compare): Avoid generating
        poor code for processors older than p8.

2016-10-09  Eric Botcazou  <ebotcazou@adacore.com>

        * gen-pass-instances.awk: Remove GNUism.

2016-10-09  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * ipa-prop.c (ipcp_transform_function): Set fields m_vr and bits to
        NULL of (*ipcp_transformations)][node->uid].

2016-10-09  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.h (BIGGEST_ALIGNMENT): Adjust comment.
        (MALLOC_ABI_ALIGNMENT): Define.

2016-10-09  Jakub Jelinek  <jakub@redhat.com>

        * tree-ssa.c (target_for_debug_bind, verify_phi_args,
        ssa_undefined_value_p, maybe_optimize_var): Use VAR_P and/or
        VAR_OR_FUNCTION_DECL_P macros.
        * tree-chkp.c (chkp_register_var_initializer, chkp_make_static_bounds,
        chkp_get_bounds_for_decl_addr, chkp_parse_array_and_component_ref,
        chkp_find_bounds_1): Likewise.
        * ipa-polymorphic-call.c (decl_maybe_in_construction_p): Likewise.
        * hsa-gen.c (get_symbol_for_decl): Likewise.
        * cgraphunit.c (check_global_declaration, analyze_functions,
        handle_alias_pairs, thunk_adjust, cgraph_node::expand_thunk):
        Likewise.
        * gimple-fold.c (can_refer_decl_in_current_unit_p,
        canonicalize_constructor_val, gimple_get_virt_method_for_vtable):
        Likewise.
        * tree.c (set_decl_section_name, copy_node_stat,
        need_assembler_name_p, free_lang_data_in_decl, find_decls_types_r,
        merge_dllimport_decl_attributes, handle_dll_attribute,
        decl_init_priority_insert, auto_var_in_fn_p, array_at_struct_end_p,
        verify_type): Likewise.
        * gimple-ssa-isolate-paths.c (find_implicit_erroneous_behavior,
        find_explicit_erroneous_behavior): Likewise.
        * sdbout.c (sdbout_toplevel_data, sdbout_late_global_decl): Likewise.
        * ipa.c (process_references): Likewise.
        * tree-chkp-opt.c (chkp_get_check_result): Likewise.
        * varasm.c (get_block_for_decl, use_blocks_for_decl_p, make_decl_rtl,
        notice_global_symbol, assemble_variable, mark_decl_referenced,
        build_constant_desc, output_constant_def_contents, do_assemble_alias,
        make_decl_one_only, default_section_type_flags,
        categorize_decl_for_section, default_encode_section_info): Likewise.
        * trans-mem.c (requires_barrier): Likewise.
        * gimple-expr.c (mark_addressable): Likewise.
        * cfgexpand.c (add_scope_conflicts_1, expand_one_var,
        expand_used_vars_for_block, clear_tree_used, stack_protect_decl_p,
        expand_debug_expr): Likewise.
        * tree-dump.c (dequeue_and_dump): Likewise.
        * ubsan.c (instrument_bool_enum_load): Likewise.
        * tree-pretty-print.c (print_declaration): Likewise.
        * simplify-rtx.c (delegitimize_mem_from_attrs): Likewise.
        * tree-ssa-uninit.c (warn_uninitialized_vars): Likewise.
        * asan.c (asan_protect_global, instrument_derefs): Likewise.
        * tree-into-ssa.c (rewrite_stmt, maybe_register_def,
        pass_build_ssa::execute): Likewise.
        * var-tracking.c (var_debug_decl, track_expr_p): Likewise.
        * tree-ssa-loop-ivopts.c (force_expr_to_var_cost, split_address_cost):
        Likewise.
        * ipa-split.c (test_nonssa_use, consider_split, mark_nonssa_use):
        Likewise.
        * tree-inline.c (insert_debug_decl_map, remap_ssa_name,
        can_be_nonlocal, remap_decls, copy_debug_stmt,
        initialize_inlined_parameters, add_local_variables,
        reset_debug_binding, replace_locals_op): Likewise.
        * dse.c (can_escape): Likewise.
        * ipa-devirt.c (compare_virtual_tables, referenced_from_vtable_p):
        Likewise.
        * tree-diagnostic.c (default_tree_printer): Likewise.
        * tree-streamer-in.c (unpack_ts_decl_common_value_fields,
        unpack_ts_decl_with_vis_value_fields,
        lto_input_ts_decl_common_tree_pointers): Likewise.
        * builtins.c (builtin_save_expr, fold_builtin_expect,
        readonly_data_expr): Likewise.
        * tree-ssa-structalias.c (new_var_info, get_constraint_for_ssa_var,
        create_variable_info_for, set_uids_in_ptset, visit_loadstore):
        Likewise.
        * gimple-streamer-out.c (output_gimple_stmt): Likewise.
        * gimplify.c (force_constant_size, gimplify_bind_expr,
        gimplify_decl_expr, gimplify_var_or_parm_decl,
        gimplify_compound_lval, gimplify_init_constructor,
        gimplify_modify_expr, gimplify_asm_expr, gimplify_oacc_declare,
        gimplify_type_sizes): Likewise.
        * cgraphbuild.c (record_reference, record_type_list, mark_address,
        mark_load, mark_store, pass_build_cgraph_edges::execute): Likewise.
        * tree-ssa-live.c (mark_all_vars_used_1, remove_unused_scope_block_p,
        remove_unused_locals): Likewise.
        * tree-ssa-alias.c (ptr_deref_may_alias_decl_p, ptrs_compare_unequal,
        ref_maybe_used_by_call_p_1, call_may_clobber_ref_p_1): Likewise.
        * function.c (instantiate_expr, instantiate_decls_1,
        setjmp_vars_warning, add_local_decl): Likewise.
        * alias.c (ao_ref_from_mem, get_alias_set, compare_base_symbol_refs):
        Likewise.
        * tree-stdarg.c (find_va_list_reference, va_list_counter_struct_op,
        va_list_ptr_read, va_list_ptr_write, check_all_va_list_escapes,
        optimize_va_list_gpr_fpr_size): Likewise.
        * tree-nrv.c (pass_nrv::execute): Likewise.
        * tsan.c (instrument_expr): Likewise.
        * tree-ssa-dce.c (remove_dead_stmt): Likewise.
        * vtable-verify.c (verify_bb_vtables): Likewise.
        * tree-dfa.c (ssa_default_def, set_ssa_default_def,
        get_ref_base_and_extent): Likewise.
        * toplev.c (wrapup_global_declaration_1, wrapup_global_declaration_2):
        Likewise.
        * tree-sra.c (static bool constant_decl_p, find_var_candidates,
        analyze_all_variable_accesses): Likewise.
        * tree-nested.c (get_nonlocal_debug_decl,
        convert_nonlocal_omp_clauses, note_nonlocal_vla_type,
        note_nonlocal_block_vlas, convert_nonlocal_reference_stmt,
        get_local_debug_decl, convert_local_omp_clauses,
        convert_local_reference_stmt, nesting_copy_decl, remap_vla_decls):
        Likewise.
        * tree-vect-data-refs.c (vect_can_force_dr_alignment_p): Likewise.
        * stmt.c (decl_overlaps_hard_reg_set_p): Likewise.
        * dbxout.c (dbxout_late_global_decl, dbxout_type_fields,
        dbxout_symbol, dbxout_common_check): Likewise.
        * expr.c (expand_assignment, expand_expr_real_2, expand_expr_real_1,
        string_constant): Likewise.
        * hsa.c (hsa_get_declaration_name): Likewise.
        * passes.c (rest_of_decl_compilation): Likewise.
        * tree-ssanames.c (make_ssa_name_fn): Likewise.
        * tree-streamer-out.c (pack_ts_decl_common_value_fields,
        pack_ts_decl_with_vis_value_fields,
        write_ts_decl_common_tree_pointers): Likewise.
        * stor-layout.c (place_field): Likewise.
        * symtab.c (symtab_node::maybe_create_reference,
        symtab_node::verify_base, symtab_node::make_decl_local,
        symtab_node::copy_visibility_from,
        symtab_node::can_increase_alignment_p): Likewise.
        * dwarf2out.c (add_var_loc_to_decl, tls_mem_loc_descriptor,
        decl_by_reference_p, reference_to_unused, rtl_for_decl_location,
        fortran_common, add_location_or_const_value_attribute,
        add_scalar_info, add_linkage_name, set_block_abstract_flags,
        local_function_static, gen_variable_die, dwarf2out_late_global_decl,
        optimize_one_addr_into_implicit_ptr,
        optimize_location_into_implicit_ptr): Likewise.
        * gimple-low.c (record_vars_into): Likewise.
        * ipa-visibility.c (update_vtable_references): Likewise.
        * tree-ssa-address.c (fixed_address_object_p, copy_ref_info):
        Likewise.
        * lto-streamer-out.c (tree_is_indexable, get_symbol_initial_value,
        DFS::DFS_write_tree_body, write_symbol): Likewise.
        * langhooks.c (lhd_warn_unused_global_decl,
        lhd_set_decl_assembler_name): Likewise.
        * attribs.c (decl_attributes): Likewise.
        * except.c (output_ttype): Likewise.
        * varpool.c (varpool_node::get_create, ctor_for_folding,
        varpool_node::assemble_decl, varpool_node::create_alias): Likewise.
        * fold-const.c (fold_unary_loc): Likewise.
        * ipa-prop.c (ipa_compute_jump_functions_for_edge,
        ipa_find_agg_cst_from_init): Likewise.
        * omp-low.c (expand_omp_regimplify_p, expand_omp_taskreg,
        expand_omp_target, lower_omp_regimplify_p,
        grid_reg_assignment_to_local_var_p, grid_remap_prebody_decls,
        find_link_var_op): Likewise.
        * tree-chrec.c (chrec_contains_symbols): Likewise.
        * tree-cfg.c (verify_address, verify_expr, verify_expr_location_1,
        gimple_duplicate_bb, move_stmt_op, replace_block_vars_by_duplicates,
        execute_fixup_cfg): Likewise.

        PR tree-optimization/77901
        * tree-ssa-reassoc.c (optimize_range_tests_var_bound): Only optimize
        if ranges[i].exp is SSA_NAME when looking for >= and only when
        ranges[i].exp is NULL or SSA_NAME when looking for the other
        comparison.

2016-10-09  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * ipa-cp.c (ipcp_alignment_lattice): Remove.
        (ipcp_param_lattices): Remove field alignment.
        (print_all_lattices): Remove call to ipcp_alignment_lattice::print.
        (set_all_contains_variable): Remove call to
        ipcp_alignment_lattice::set_to_bottom.
        (initialize_node_lattices): Likewise.
        (propagate_alignment_accross_jump_function): Remove.
        (propagate_constants_accross_call): Remove call to
        propagate_alignment_accross_jump_function.
        (ipcp_store_alignment_results): Remove.
        (ipcp_driver): Remove call to ipcp_store_alignment_results.
        (propagate_bits_accross_jump_function): Handle ancestor jump function.
        * ipa-prop.c (ipa_print_node_jump_functions_for_edge): Remove
        pretty-printing of alignment jump function.
        (ipa_set_jf_unknown): Remove assignment to jfunc->alignment.known.
        (ipa_compute_jump_functions_for_edge): Adjust ipa_bits jump function for
        alignments and remove computing ipa_alignment jump function.
        (ipa_node_params_t::duplicate): Remove copying of src_trans->alignments.
        (ipa_write_jump_functions): Remove streaming for ipa_alignment.
        (ipa_read_jump_function): Remove reading of ipa_alignment.
        (write_ipcp_transformation_info): Remove streaming for alignment
        propagation summary.
        (read_ipcp_transformation_info): Remove reading of alignment
        propagation summary.
        (ipcp_update_alignments): Remove.
        (ipcp_update_bits): Adjust to set alignment for parameters of pointer
        type.
        (ipcp_transform_function): Remove call to ipcp_update_alignments()
        and remove assignment to (*ipcp_transformations)[node->uid].alignments.
        * ipa-prop.h (ipa_alignment): Remove.
        (ipa_jump_func): Remove field alignment.
        (ipcp_transformation_summary): Remove field alignments.
        * doc/invoke.texi: Mark fipa-cp-alignment as obsolete.
        * opts.c (default_options_table): Remove entry for fipa-cp-alignment.
        (enable_fdo_optimizations): Remove checking for fipa-cp-alignment.

2016-10-08  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.h (FIXED_REGISTERS): Add %icc.

        * config/visium/visium.c (visium_expand_int_cstore): Revert latest
        change.
        (visium_expand_fp_cstore): Likewise.

2016-10-08  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * diagnostic-core.h (warning_at_rich_loc_n): Declare.
        * diagnostic.c (warning_at_rich_loc_n): New function.
        (diagnostic_n_impl_richloc): Likewise.
        (diagnostic_n_impl): Move most of the function to
        diagnostic_n_impl_richloc and call it.

2016-10-08  Jakub Jelinek  <jakub@redhat.com>

        * gen-pass-instances.awk: Rewritten.
        * Makefile.in (pass-instances.def): Depend on $(PASSES_EXTRA), pass
        $(PASSES_EXTRA) after passes.def to the script.
        * config/i386/t-i386 (PASSES_EXTRA): Add i386-passes.def.
        * config/i386/i386-passes.def: New file.
        * config/i386/i386-protos.h (make_pass_insert_vzeroupper,
        make_pass_stv): Declare.
        * config/i386/i386.c (pass_stv::pass_stv): Initialize timode_p to
        false.
        (pass_stv::gate): Depending on timode_p member require TARGET_64BIT
        or !TARGET_64BIT.
        (pass_stv::clone, pass_stv::set_pass_param): New methods.
        (pass_stv::timode_p): New non-static data member.
        (ix86_option_override): Don't register passes here.

        * doc/invoke.texi: Document accepting Else, fallthrough.

        * doc/invoke.texi (-Wimplicit-fallthrough): Document FALLTHRU comment
        style changes.

        * doc/invoke.texi (-Wimplicit-fallthrough): Document the accepted
        FALLTHRU comment styles.

2016-10-07  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-arches.def (AARCH64_ARCH): #undef at the end.
        * config/aarch64/aarch64-cores.def (AARCH64_CORE): Likewise.
        * config/aarch64/aarch64-fusion-pairs.def (AARCH64_FUSION_PAIR):
        Likewise.
        * config/aarch64/aarch64-option-extensions.def (AARCH64_OPT_EXTENSION):
        Likewise.
        * config/aarch64/aarch64-tuning-flags.def (AARCH64_EXTRA_TUNING_OPTION):
        Likewise.
        * config/aarch64/aarch64-opts.h (AARCH64_CORE): Don't #undef here.
        (AARCH64_ARCH): Likewise.
        * common/config/aarch64/aarch64-common.c (AARCH64_OPT_EXTENSION):
        Likewise.
        (AARCH64_CORE): Likewise.
        (AARCH64_ARCH): Likewise.
        * config/aarch64/aarch64-protos.h (AARCH64_FUSION_PAIR): Likewise.
        (AARCH64_EXTRA_TUNING_OPTION): Likewise.
        * config/aarch64/aarch64.c (AARCH64_FUION_PAIR): Likewise.
        (AARCH64_EXTRA_TUNING_OPTION): Likewise.
        (AARCH64_ARCH): Likewise.
        (AARCH64_CORE): Likewise.
        * config/aarch64/aarch64.h (AARCH64_CORE): Likewise.
        * config/aarch64/driver-aarch64.c (AARCH64_OPT_EXTENSION): Likewise.
        (AARCH64_CORE): Likewise.
        (AARCH64_ARCH): Likewise.

2016-10-06  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Split
        -mfloat128 into -mfloat128-type that enables the IEEE 128-bit
        floating point type infrastructre, and -mfloat128 that enables the
        keyword.  Define __FLOAT128__ if -mfloat128, and __FLOAT128_TYPE__
        if -mfloat128-type.  Define __ibm128 to be long double by default.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Print whether
        the IEEE 128-bit floating point type infrastructure should
        automatically be enabled.
        (rs6000_init_hard_regno_mode_ok): Switch to use -mfloat128-type
        instead of -mfloat128 to enable KFmode.
        (rs6000_option_override_internal): Split the option -mfloat128
        into -mfloat128-type and -mfloat128.  On Linux PowerPC 64-bit
        systems, automatically set -mfloat128-type, but don't enable it on
        other operating systems.  Move setting the long double size and
        IEEE quad support before the IEEE 128-bit floating point changes.
        (rs6000_init_builtins): Do not create a unique type for __ibm128
        if long double is IBM extended double, instead rely on __ibm128
        being defined as 'long double'.  If -mfloat128-type and not
        -mfloat128, create the KFmode type with an undocumented __ieee128
        keyword.
        (rs6000_init_libfuncs): Use -mfloat128-type instead of
        -mfloat128 for tests about the types, but keep tests for
        -mfloat128 to enable the keyword support.
        (rs6000_complex_function_value): Likewise.
        (rs6000_scalar_mode_supported_p): Likewise.
        (rs6000_floatn_mode): Likewise.
        (rs6000_c_mode_for_suffix): Likewise.
        (rs6000_opt_masks): Add -mfloat128-type.
        * config/rs6000/rs6000-cpus.def (POWERPC_MASKS): Add support for
        -mfloat128-type being split from -mfloat128.  Add
        -mfloat128-hardware, which was missing.
        * config/rs6000/rs6000.opt (-mfloat128): Split -mfloat128 into
        -mfloat128 and -mfloat128-type:
        (-mfloat128-type): Likewise.
        * config/rs6000/linux64.h (TARGET_FLOAT128_ENABLE_TYPE): Define so
        that 64-bit Linux systems with enable -mfloat128-type by default
        on VSX systems.
        * config/rs6000/rs6000.h (TARGET_FLOAT128_ENABLE_TYPE): Likewise.
        (FLOAT128_VECTOR_P): Switch IEEE 128-bit floating points to use
        -mfloat128-type instead of -mfloat128.
        (FLOAT128_2REG_P): Likewise.
        (MASK_FLOAT128_TYPE): Likewise.
        (ALTIVEC_ARG_MAX_RETURN): Likewise.
        (RS6000_BTM_FLOAT128): Likewise.
        (TARGET_FLOAT128): Poison old identifiers.
        (OPTION_MASK_FLOAT128): Likewise.
        (MASK_FLOAT128): Likewise.
        * config/rs6000/rs6000.md (FP): Likewise.
        (FLOAT128): Likewise.
        (fix_trunc<mode>di2): Likewise.
        (fixuns_trunc<IEEE128:mode><SDI:mode>2): Likewise.
        (floatdi<mode>2): Likewise.
        (floatuns<SDI:mode><IEEE128:mode>2): Likewise.
        (neg<mode>2, FLOAT128 iterator): Likewise.
        (abs<mode>2, FLOAT128 iterator): Likewise.
        (ieee_128bit_negative_zero): Likewise.
        (ieee_128bit_vsx_neg<mode>2): Likewise.
        (ieee_128bit_vsx_neg<mode>2_internal): Likewise.
        (ieee_128bit_vsx_abs<mode>2): Likewise.
        (ieee_128bit_vsx_abs<mode>2_internal): Likewise.
        (ieee_128bit_vsx_nabs<mode>2): Likewise.
        (ieee_128bit_vsx_nabs<mode>2_internal): Likewise.
        (extendiftf2): Likewise.
        (extendifkf2): Likewise.
        (extendtfkf2): Likewise.
        (trunciftf2): Likewise.
        (truncifkf2): Likewise.
        (trunckftf2): Likewise.
        (trunctfif2): Likewise.
        (extendkftf2): Likewise.
        (trunctfkf2): Likewise.

2016-10-07  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * simplify-rtx.c (simplify_immed_subreg): Zero-initialize tmp array
        before merging in bytes to pass down to real_from_target.

2016-10-07  Richard Biener  <rguenther@suse.de>

        * tree-ssa-propagate.c (replace_phi_args_in): Remove no longer
        required hack.
        (substitute_and_fold_dom_walker::before_dom_children):
        Substitute and fold before pass specific folding to avoid
        feeding that with SSA names that will be later released.
        * tree-ssa-ccp.c (get_value_for_expr): Guard for new SSA names
        introduced by folding and visited by evaluate_stmt called during
        ccp_fold_stmt.
        (likely_value): Likewise.
        (evaluate_stmt): Likewise.
        * tree-vrp.c (simplify_truth_ops_using_ranges): Fold modified stmt.
        (simplify_div_or_mod_using_ranges): Likewise.
        (simplify_min_or_max_using_ranges): Likewise.
        (simplify_abs_using_ranges): Likewise.
        (simplify_conversion_using_ranges): Likewise.
        (simplify_float_conversion_using_ranges): Likewise.
        (simplify_stmt_using_ranges): Likewise.

2016-10-07  Marek Polacek  <polacek@redhat.com>

        * gimplify.c (should_warn_for_implicit_fallthrough): Check for
        FALLTHROUGH_LABEL_P here...
        (warn_implicit_fallthrough_r): ...not here.

2016-10-07  Bernd Schmidt  <bschmidt@redhat.com>

        PR tree-optimization/77880
        * expr.c (by_pieces_ninsns): Use unsigned HOST_WIDE_INT where
        necessary.

2016-10-07  Marek Polacek  <polacek@redhat.com>

        PR c++/77803
        * gimplify.c (last_stmt_in_scope): Add check for FALLTHROUGH ().

2016-10-07  Richard Biener  <rguenther@suse.de>

        * bitmap.h: Document constraints on bitmap modification while
        iterating over it.

2016-10-07  Richard Biener  <rguenther@suse.de>

        * bitmap.c (bitmap_elem_to_freelist): Set indx to -1.
        * bitmap.h (bmp_iter_set): When advancing to the next element
        check that we didn't remove the current one.
        (bmp_iter_and): Likewise.
        (bmp_iter_and_compl): Likewise.
        * tree-ssa.c (release_defs_bitset): Do not remove worklist bit
        we currently iterate on but keep a one-level queue.
        * sched-deps.c (remove_from_deps): Do not clear current bit
        but keep a one-level queue.

2016-10-07  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/77664
        * tree-ssa-reassoc.c (update_range_test): Also clear low and high
        for the other ranges.
        (optimize_range_tests_diff): Fix up formatting.
        (optimize_range_tests_var_bound): New function.
        (optimize_range_tests): Use it.

2016-10-07  Martin Liska  <mliska@suse.cz>

        * coverage.c (build_gcov_exit_decl): Fix priority what
        should be really 99.

2016-10-07  Richard Biener  <rguenther@suse.de>

        * gimple-low.c (lower_gimple_bind): Clear DECL_CHAIN of
        vars in gimple_bind_vars but not in BLOCK_VARS.

2016-10-07  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77879
        * tree-ssa-structalias.c (handle_const_call): Properly handle
        NRV return slots.
        (handle_pure_call): Likewise.

2016-10-06  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_elf_asm_out_constructor)
        (rs6000_elf_asm_out_destructor): increase size of buf to avoid
        possible overflow.

2016-10-06  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-cores.def: Add a comment before each
        set of cores.

2016-10-06  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR tree-optimization/77862
        * tree-vrp.c (add_equivalence): Use get_value_range so that
        num_vr_values is checked before accessing vr_values.

2016-10-06  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * tree-vrp.c (evrp_dom_walker::before_dom_children): Handle
          POINTER_TYPE_P.

2016-10-05  Jeff Law  <law@redhat.com>

        PR tree-optimization/71661
        * tree-cfgcleanup.c (remove_forwarder_block_with_phi): Handle case when
        removal of a forwarder exposes a new natural loop.

2016-10-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (andnot<mode>3): Add FALLTHRU comments.
        Introduce ssesuffix variable.
        (<mask_codefor><code><mode>3<mask_name>): Ditto.
        (*<code><mode>3): Ditto.

2016-10-06  Jan Hubicka  <hubicka@ucw.cz>

        * postreload.c (reload_cse_simplify): Skip also USE when detecting
        noop move.

2016-10-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77855
        * tree-ssa-pre.c (prune_clobbered_mems): Queue exprs to remove
        instead of removing the current item while iterating over the set
        which is not safe.

2016-10-06  James Clarke  <jrtc27@jrtc27.com>
            Eric Botcazou  <ebotcazou@adacore.com>

        PR target/77759
        * config/sparc/sparc.c (classify_data_t): Remove int_regs field.
        (classify_registers): Don't set it
        (function_arg_slotno): Don't initialize and test it.  Tidy up.

2016-10-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77839
        * tree-ssa-sccvn.c (set_ssa_val_to): Forbid value -> constant value
        lattice transition.

2016-10-06  Martin Liska  <mliska@suse.cz>

        * gcc.c: Set -fprofile-update=atomic when profiling is
        enabled and -pthread is set.  Warn when one combines
        -pthread and -fprofile-update=single for an app using
        profiling code.

2016-10-06  Martin Liska  <mliska@suse.cz>

        PR bootstrap/77788
        * expmed.h (mul_highpart_cost_ptr): Add an gcc_assert.
        * gimple-ssa-strength-reduction.c (slsr_process_cast):
        Initialize a pointer to NULL.
        (slsr_process_copy): Likewise.
        * input.c (location_get_source_line): Likewise.
        * tree-ssa-ccp.c (optimize_atomic_bit_test_and): Likewise.

2016-10-05  Andrew Senkevich  <andrew.senkevich@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_PCOMMIT_UNSET,
        OPTION_MASK_ISA_PCOMMIT_SET): Deleted definitions.
        (ix86_handle_option): Deleted handle of OPT_mpcommit.
        * config.gcc: Deleted pcommitintrin.h
        * config/i386/pcommitintrin.h: Deleted file.
        * config/i386/cpuid.h (bit_PCOMMIT): Deleted.
        * config/i386/driver-i386.c (host_detect_local_cpu): Deleted pcommit
        detection.
        * config/i386/i386-c.c (ix86_target_macros_internal): Deleted define
        __PCOMMIT__.
        * config/i386/i386.c (ix86_target_string): Deleted -mpcommit.
        (PTA_PCOMMIT): Deleted define.
        (ix86_option_override_internal): Deleted handle of option.
        (ix86_valid_target_attribute_inner_p): Deleted pcommit.
        * config/i386/i386-builtin.def (IX86_BUILTIN_PCOMMIT,
        __builtin_ia32_pcommit): Deleted.
        * config/i386/i386.h (TARGET_PCOMMIT, TARGET_PCOMMIT_P): Deleted.
        * config/i386/i386.md (unspecv): Deleted UNSPECV_PCOMMIT.
        (pcommit): Deleted instruction.
        * config/i386/i386.opt: Mention -mpcommit deprecation.
        * config/i386/x86intrin.h: Deleted inclusion of pcommitintrin.h.

2016-10-05  Uros Bizjak  <ubizjak@gmail.com>

        PR target/77874
        * config/i386/sse.md (<mask_codefor><code><mode>3<mask_name>):
        Remove wrong assert.
        (<floatsuffix>float<sseintvecmodelower><mode>2<mask_name><round_name>:
        Use <round_constraint> as operand 1 constraint.

2016-10-05  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/66343
        * ubsan.c (ubsan_create_data): Call initialize_sanitizer_builtins here.
        (ubsan_instrument_float_cast): And not here.

        PR sanitizer/66343
        * ubsan.c (ubsan_ids): New GTY(()) array.
        (ubsan_type_descriptor, ubsan_create_data): Use ubsan_ids
        instead of static local counters.

2016-10-05  Martin Sebor  <msebor@redhat.com>

        PR bootstrap/77819
        * config/linux.h (TARGET_PRINTF_POINTER_FORMAT): Define macro.
        * config/linux.c (gnu_libc_printf_pointer_format): Remove.
        * targhooks.c [DEFAULT_LIBC == LIBC_UCLIBC) && SINGLE_LIBC]
        (default_printf_pointer_format): Define function.
        * targhooks.c (linux_printf_pointer_format): Define new function.
        * targhooks.h (linux_printf_pointer_format): Declare.
        (gnu_libc_printf_pointer_format): Remove declaration.

2016-10-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * fold-const.c (native_encode_real): Fix logic for selecting offset
        to write to when BYTES_BIG_ENDIAN.

2016-10-05  Wilco Dijkstra  <wdijkstr@arm.com>

        * builtins.c (fold_builtin_strchr): Remove function.
        (fold_builtin_strrchr): Likewise.
        (fold_builtin2): Remove strchr, index, strrchr, rindex cases.
        * gimple-fold.c (target_char_cst_p): New function.
        (gimple_fold_builtin_strchr) Add more foldings.
        (gimple_fold_builtin): Add index, strrchr, rindex cases.

2016-10-05  Richard Biener  <rguenther@suse.de>

        PR middle-end/77863
        * genmatch.c (capture_info::walk_c_expr): Diagnose unknown
        capture ids in c-exprs.

2016-10-05  Richard Biener  <rguenther@suse.de>

        PR middle-end/77826
        * genmatch.c (dt_operand::gen_match_op): Amend operand_equal_p
        with types_match for GIMPLE code gen to handle type mismatched
        constants properly.
        (dt_operand::gen): Adjust.
        * match.pd ((X /[ex] A) * A -> X): Properly handle converted
        and constant A.

2016-10-05  Richard Biener  <rguenther@suse.de>

        * match.pd (copysign(x, CST) -> [-]abs (x)): New pattern.

2016-10-05  Richard Biener  <rguenther@suse.de>

        PR middle-end/77842
        * genmatch.c (parser::parse_c_expr): Handle premature EOF.

2016-10-05  Pierre-Marie de Rodat  <derodat@adacore.com>

        * dwarf2out.c (dwarf2out_imported_module_or_decl): Move DWARF
        version check to protect only DW_TAG_imported_module generation.

2016-10-05  Richard Biener  <rguenther@suse.de>

        PR middle-end/55152
        * match.pd (min(a,-a) -> -abs(a)): New pattern.

2016-10-04  Ian Lance Taylor  <iant@golang.org>

        * explow.c (allocate_dynamic_stack_space): Call
        do_pending_stack_adjust before handling flag_split_stack.

2016-10-04  David Malcolm  <dmalcolm@redhat.com>

        * genattrtab.c (make_internal_attr): Supply dummy column number to
        file_location ctor.
        (main): Likewise.
        * genoutput.c (init_insn_for_nothing): Likewise.
        * gensupport.c (add_define_attr): Likewise.
        * read-md.c (message_at_1): Print column number.
        (fatal_with_file_and_line): Likewise.
        (rtx_reader::read_char): Track column numbers.
        (rtx_reader::unread_char): Likewise.
        (rtx_reader::rtx_reader): Initialize m_read_md_colno.
        (rtx_reader::handle_include): Stash and restore m_read_md_colno.
        (rtx_reader::handle_file): Initialize m_read_md_colno.
        (rtx_reader::get_current_location): Supply column number to
        file_location ctor.
        * read-md.h (struct file_location): Add field "colno".
        (file_location::file_location): Likewise.
        (rtx_reader::get_colno): New accessor.
        (rtx_reader::m_read_md_colno): New field.
        (rtx_reader::m_last_line_colno): New field.

2016-10-04  Jakub Jelinek  <jakub@redhat.com>

        * doc/extend.texi (Java Exceptions): Remove.
        (java_interface): Remove.

2016-10-04  Doug Gilmore  <doug.gilmore@imgtec.com>

        PR tree-optimization/77808
        * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Check base_addr
        and addr are different before copying points-to information.

2016-10-04  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/x86-tune.def (X86_TUNE_VECTORIZE_DOUBLE): Remove.
        * config/i386/i386.h (TARGET_VECTORIZE_DOUBLE): Remove.
        * config/i386/i386.c (ix86_add_stmt_cost): Use TARGET_BONNEL instead
        of !TARGET_VECTORIZE_DOUBLE when penalizing DFmode vector ops.

2016-10-04  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77399
        * tree-ssa-forwprop.c (simplify_vector_constructor): Properly
        verify the target can convert.

2016-10-04  Richard Biener  <rguenther@suse.de>

        PR middle-end/77833
        * explow.c (plus_constant): Verify the mode of the constant
        pool offset before calling plus_constant.

2016-10-04  Richard Biener  <rguenther@suse.de>

        PR middle-end/77407
        * match.pd (X / abs (X) -> X < 0 ? -1 : 1): Drop vector
        type support, mark with :C.
        (X / -X -> -1): Mark with :C.

2016-10-04  Jakub Jelinek  <jakub@redhat.com>

        * defaults.h (JCR_SECTION_NAME, TARGET_USE_JCR_SECTION): Remove.
        * system.h (JCR_SECTION_NAME, TARGET_USE_JCR_SECTION): Poison.
        * doc/tm.texi.in (TARGET_USE_JCR_SECTION): Remove.
        * doc/tm.texi: Regenerated.
        * config/i386/mingw32.h (TARGET_USE_JCR_SECTION): Remove.
        * config/i386/cygming.h (TARGET_USE_JCR_SECTION): Remove.
        * config/darwin.h (JCR_SECTION_NAME): Remove.
        * config/pa/pa64-hpux.h (JCR_SECTION_NAME): Remove.
        * config/rs6000/aix71.h (TARGET_USE_JCR_SECTION): Remove.
        * config/rs6000/aix51.h (TARGET_USE_JCR_SECTION): Remove.
        * config/rs6000/aix52.h (TARGET_USE_JCR_SECTION): Remove.
        * config/rs6000/aix53.h (TARGET_USE_JCR_SECTION): Remove.
        * config/rs6000/aix61.h (TARGET_USE_JCR_SECTION): Remove.

2016-10-03  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * ipa-cp.c (propagate_bits_accross_jump_function): Introduce space
        between "because" and "param" in dump message in call to fprintf.

2016-10-03  Jeff Law  <law@redhat.com>

        PR tree-optimization/71550
        PR tree-optimization/71403
        * tree-ssa-threadbackward.c: Include tree-vectorizer.h
        (profitable_jump_thread_path): Also return boolean indicating if
        the realized path will create an irreducible loop.
        Remove loop depth tests from 71403.
        (fsm_find_control_statement_thread_paths): Remove loop depth tests
        from 71403.  If threading will create an irreducible loop, then
        throw away loop iteration and related information.

2016-10-03  Uros Bizjak  <ubizjak@gmail.com>

        * configure.ac (strict_warn): Merge -Wmissing-format-attribute and
        -Woverloaded-virtual checks for warning options.
        * configure: Regenerate.

2016-10-03  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR preprocessor/77699
        * input.c (maybe_grow): Don't allocate one byte extra headroom.
        (get_next_line): Return false on error.
        (read_next_line): Removed, use get_next_line instead.
        (read_line_num): Don't copy the line.
        (location_get_source_line): Don't use static data.
        (selftest::test_reading_source_line): Add more test cases.

2016-10-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        Revert
        2016-09-30  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * ifcvt.c (noce_try_avoid_const_materialization): New function.
        (noce_process_if_block): Use it.

2016-10-03  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/invoke.texi: Update -Wint-in-bool-context.

2016-10-02  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (output_fde, output_call_frame_info,
        dwarf2out_do_cfi_startproc, set_indirect_string,
        gen_internal_sym, output_die, output_line_info): Use
        MAX_ARTIFICIAL_LABEL_BYTES as char array sizes for
        ASM_GENERATE_INTERNAL_LABEL output.

2016-10-01  Richard Biener  <rguenther@suse.de>

        PR middle-end/77798
        * genmatch.c (get_operand_type): Add operand position arg
        and handle COND_EXPR comparison operand with fixed boolean_type_node.
        (expr::gen_transform): Adjust.
        (dt_simplify::gen_1): Likewise.

2016-10-01  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (<mask_codefor><code><mode>): Add FALLTHRU
        comments.  Simplify asserts, remove unnecessary conditions.
        Formatting fixes.
        (*<code><mode>3): Likewise.

2016-09-30  Jakub Jelinek  <jakub@redhat.com>

        * doc/invoke.texi (-Wregister): Document.

2016-09-30  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * configure.ac: Split CHECKING_P into CHECKING_P and
        ENABLE_EXTRA_CHECKING.
        * configure: Regenerated.
        * config.in: Adjust commment of CHECKING_P.  Add ENABLE_EXTRA_CHECKING.
        * common.opt (flag_checking): Use CHECKING_P and ENABLE_EXTRA_CHECKING.

2016-09-30  Prasad Ghangal  <prasad.ghangal@gmail.com>

        PR other/31566
        * gcc.c (process_command): For @filename handling, output
        the correct name if the file does not exist.

2016-09-30  Marek Polacek  <polacek@redhat.com>

        * config/aarch64/aarch64-simd.md: Adjust fall through comments.
        * config/alpha/predicates.md: Likewise.

2016-09-30  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * ifcvt.c (noce_try_avoid_const_materialization): New function.
        (noce_process_if_block): Use it.

2016-09-30  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi: Document asan-use-after-return that
        it's disabled by default in runtime.

2016-09-30  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (intersect_ranges): If we failed to handle
        the intersection choose a constant singleton range if available.

2016-09-30  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77399
        * tree-ssa-forwprop.c (simplify_vector_constructor): Handle
        float <-> int conversions.

2016-09-30  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_opt_vars): Revert last change.

2016-09-29  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/driver-i386.c (host_detect_local_cpu): Check maximum
        ext_level before calling CPUID with 0x80000008.
        Simplify xgetbv checks.

2016-09-29  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (OBJS): Add print-rtl-function.o.
        * print-rtl-function.c: New file.
        * print-rtl.h (print_rtx_function): New decl.

2016-09-29  Uros Bizjak  <ubizjak@gmail.com>

        PR target/77756
        * config/i386/cpuid.h (__get_cpuid_count): New.
        (__get_cpuid): Rename __level to __leaf.

2016-09-29  Marek Polacek  <polacek@redhat.com>

        * genattrtab.c (write_attr_case): Also emit FALLTHRU marker.

2016-09-29  Bernd Schmidt  <bschmidt@redhat.com>

        * builtins.c (expand_builtin_memcmp): don't swap args unless
        result is only being compared with zero.

2016-09-29  Marek Polacek  <polacek@redhat.com>

        * dwarf2out.c (loc_descriptor): Add fall through comment.
        (add_const_value_attribute): Likewise.

2016-09-29  Matthew Wahab  <matthew.wahab@arm.com>

        * config/arm/arm.md (*arm_movsi_insn): Replace "t2" arch attribute
        with "v6t2".  Move "arch" attribute above "pool_range".
        * config/arm/vfp.md (*arm_movhi_vfp): Replace "t2" arch attribute
        with "v6t2".
        (*thumb2_movhi_vfp): Likewise.
        (*arm_movhi_fp16): Likewise.
        (*thumb2_movhi_fp16): Likewise.
        (*arm_movsi_vfp): Remove "arch" attribute.
        (*thumb2_movsi_vfp): Likewise.

2016-09-29  Martin Liska  <mliska@suse.cz>

        * doc/extend.texi: Remove limitation of Objective C for
        __attribute__((constructor)) and __attribute__((destructor)).

2016-09-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77768
        * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
        Handle stores to readonly memory when removing redundant stores.

2016-09-29  Richard Biener  <rguenther@suse.de>

        PR middle-end/77407
        * match.pd: Add X / abs (X) -> X < 0 ? -1 : 1 and
        X / -X -> -1 simplifications.

2016-09-29  Richard Biener  <rguenther@suse.de>

        PR middle-end/55152
        * match.pd: Add max(a,-a) -> abs(a) pattern.
        * tree-ssa-phiopt.c (minmax_replacement): Disable for
        HONOR_SIGNED_ZEROS types.

2016-09-29  James Greenhalgh  <james.greenhalgh@arm.com>

        * defaults.h (TARGET_FLT_EVAL_METHOD_NON_DEFAULT): Remove.
        * system.h (TARGET_FLT_EVAL_METHOD_NON_DEFAULT): Poison.

2016-09-29  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (set_defs_to_varying): New helper avoiding
        writing to vr_const_varying.
        (vrp_initialize): Call it.
        (vrp_visit_stmt): Likewise.
        (evrp_dom_walker::before_dom_children): Likewise.

2016-09-29  Richard Biener  <rguenther@suse.de>

        * tree-vect-stmts.c (vectorizable_load): Avoid emitting vector
        constructors with vector elements.

2016-09-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77768
        * tree-ssa-sccvn.c (visit_reference_op_store): Properly deal
        with stores to a place we know has a constant value.

2016-09-29  Alan Modra  <amodra@gmail.com>

        * config/rs6000/sysv4.opt (mgnu-attribute): New option.
        * doc/invoke.texi: Document it.
        * config/rs6000/rs6000.c (HAVE_LD_PPC_GNU_ATTR_LONG_DOUBLE): Define.
        (rs6000_passes_float): Comment.
        (rs6000_passes_long_double): New static var.
        (call_ABI_of_interest): Return false unless rs6000_gnu_attr is set.
        (init_cumulative_args): Set up to emit fp .gnu_attribute for
        ELF 64-bit ABIs as well as 32-bit ELF.  Correct rs6000_passes_float
        to include fp values returned in vectors.
        Set rs6000_passes_long_double.
        (rs6000_function_arg_advance_1): Likewise for function args.
        (rs6000_elf_file_end): Emit fp .gnu_attribute for ELF 64-bit ABIs,
        and SPE.  Emit long double tag value too.
        (rs6000_opt_vars): Add gnu-attr.
        * configure.ac (HAVE_LD_PPC_GNU_ATTR_LONG_DOUBLE): New ppc32 test.
        * configure: Regenerate.
        * config.in: Regenerate.

2016-09-28  Jakub Jelinek  <jakub@redhat.com>

        * gimple-ssa-sprintf.c (pass_sprintf_length::gate): Use x > 0 instead
        of 0 < x.
        (format_floating, format_string, format_directive,
        get_destination_size, pass_sprintf_length::handle_gimple_call):
        Likewise.

2016-09-28  Jakub Jelinek  <jakub@redhat.com>

        * gimple-ssa-sprintf.c: Fix comment formatting.
        (format_integer): Use is_gimple_assign.
        (pass_sprintf_length::handle_gimple_call): Use gimple_call_builtin_p
        and gimple_call_fndecl.  Reorder case BUILT_IN_SPRINTF_CHK.  Fix up
        BUILT_IN_SNPRINTF_CHK comment.  Replace "to to" with "to" in comment.
        (pass_sprintf_length::execute): Use is_gimple_call.

2016-09-28  Wilco Dijkstra  <wdijkstr@arm.com>

        * gimple-fold.c (gimple_fold_builtin): After failing to fold
        strchr, also try the generic folding.

2016-09-28  Martin Sebor  <msebor@redhat.com>

        PR c/77762
        * gimple-ssa-sprintf.c (pass_sprintf_length::handle_gimple_call):
        Fix typos.

2016-09-28  Martin Sebor  <msebor@redhat.com>

        PR middle-end/77683
        * gimple-ssa-sprintf.c (format_integer): Fail gracefully when
        length modifier is not expected.
        (format_floating): Ignore l length modifier and fail gracefuly
        when it isn't one of the other expected ones.

2016-09-28  Martin Sebor  <msebor@redhat.com>

        PR bootstrap/77753
        * varasm.c (assemble_addr_to_section): Increase local buffer size.

2016-09-27  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (cu_die_list): New global.
        (dwarf2out_finish): Walk cu_die_list instead of limbo DIEs.  Add
        main_comp_unit_die to cu_die_list if we created it.
        Move break_out_includes ...
        (dwarf2out_early_finish): ... here.  Push created CU DIEs onto
        the cu_die_list.

2016-09-28  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (struct die_struct): Add removed flag.
        (lookup_type_die): If the DIE is marked as removed, clear
        TYPE_SYMTAB_DIE and return NULL.
        (lookup_decl_die): If the DIE is marked as removed, remove it
        from the hash and return NULL.
        (mark_removed): New helper.
        (prune_unused_types_prune): Call it for removed DIEs.
        (gen_subprogram_die): Move the premark_used_types call to after
        DIEs for the functions scopes are generated.
        (process_scope_var): Do not re-create pruned types or type decls.
        Make sure to also re-parent type decls.
        (dwarf2out_finish): Move unused type pruning and debug_types
        handling ...
        (dwarf2out_early_finish): ... here.

2016-09-29  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-c.c: New file.
        * config/arc/arc-c.def: Likewise.
        * config/arc/t-arc: Likewise.
        * config.gcc: Include arc-c.o as c and cpp object.
        * config/arc/arc-protos.h (arc_cpu_cpp_builtins): Add prototype.
        * config/arc/arc.h (TARGET_CPU_CPP_BUILTINS): Use
        arc_cpu_cpp_builtins.

2016-09-29  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (*rotrsi3_cnt1): New pattern.
        (*ashlsi2_cnt1, *lshrsi3_cnt1, *ashrsi3_cnt1): Likewise.

2016-09-28  Nathan Sidwell  <nathan@acm.org>

        * gimple-pretty-print.c (dump_gimple_call_args): Simplify "' "
        printing.

2016-09-28  Wilco Dijkstra  <wdijkstr@arm.com>

        PR tree-optimization/61056
        * gimple-fold.c (gimple_fold_builtin_strchr):
        New function to optimize strchr (s, 0) to strlen.
        (gimple_fold_builtin): Add BUILT_IN_STRCHR case.

2016-09-27  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        PR tree-optimization/77724
        * tree-vect-loop-manip.c (create_intersect_range_checks_index):
        Add tree_fits_shwi_p check.

2016-09-27  Jakub Jelinek  <jakub@redhat.com>

        * auto-inc-dec.c (try_merge): Remove break after return.
        * cselib.c (autoinc_split): Likewise.
        * explow.c (promote_mode): Likewise.
        * fixed-value.c (fixed_arithmetic): Likewise.
        * hsa.c (hsa_internal_fn::get_arity): Likewise.
        * rtlanal.c (modified_between_p, modified_in_p): Likewise.
        * trans-mem.c (get_attrs_for): Likewise.
        * tree-if-conv.c (if_convertible_stmt_p): Likewise.
        * tree-vrp.c (simplify_stmt_using_ranges): Likewise.
        * config/aarch64/aarch64-builtins.c (aarch64_fold_builtin): Likewise.
        * config/aarch64/aarch64.c (aarch64_get_condition_code_1): Likewise.
        * config/c6x/c6x.c (c6x_get_unit_specifier): Likewise.
        * config/cr16/cr16.c (legitimate_pic_operand_p): Likewise.
        * config/cris/cris.c (cris_op_str): Likewise.
        * config/mn10300/mn10300.c (cc_flags_for_code): Likewise.
        * config/tilepro/tilepro.c (tilepro_emit_setcc_internal_di): Likewise.

2016-09-27  Nathan Sidwell  <nathan@codesourcery.com>

        * internal-fn.h (IFN_UNIQUE_CODES, IFN_GOACC_LOOP_CODES,
        IFN_GOACC_REDUCTION_CODES): New.
        (enum ifn_unique_kind, enum ifn_goacc_loop_kind, enum
        ifn_goacc_reduction_kind): Use them.
        * gimple-pretty-print.c (dump_gimple_call_args): Decode first arg
        of internal functions, when applicable.

2016-09-27  Maciej W. Rozycki  <macro@imgtec.com>

        * config/mips/constraints.md (d): Fix documentation.
        * doc/md.texi (Machine Constraints): Update accordingly.

2016-09-27  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (dwarf2out_init): Move text_section_line_info,
        cur_line_info_table initialization ...
        (dwarf2out_assembly_start): ... here.

2016-09-27  Matthew Wahab  <matthew.wahab@arm.com>

        * config/arm/arm.md (*arm_movsi_insn): Add "arch" attribute.
        * config/arm/vfp.md (*arm_movhi_vfp): Likewise.
        (*thumb2_movhi_vfp): Likewise.
        (*arm_movhi_fp16): Remove predication operand from VMOV.F16
        template.  Expand predicable attribute to mark VMOV.F16 as not
        predicable.  Add "arch" attribute.
        (*thumb2_movhi_fp16): Likewise.
        (*arm_movsi_vfp): Break a long line.  Add "arch" attribute.
        (*thumb2_movsi_vfp): Add "arch" attribute.

2016-09-27  David Edelsohn  <dje.gcc@gmail.com>

        * config/rs6000/rs6000.c (rs6000_output_symbol): Don't modify
        VAR_DECL string.

2016-09-27  Marek Polacek  <polacek@redhat.com>

        * config/ia64/ia64.c (ia64_print_operand): Adjust fall through
        comment.

        * config/c6x/c6x.h: Adjust fall through comment.
        * config/sh/sh.c (final_prescan_insn): Likewise.
        * config/visium/visium.c (visium_expand_int_cstore): Likewise.
        (visium_expand_fp_cstore): Likewise.

2016-09-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.c (const_ok_for_op): Use "Fall through" comment form
        expected by -Wimplicit-fallthrough.
        (thumb1_size_rtx_costs): Likewise.
        (thumb2_reorg): Likewise.
        (tls_mentioned_p): Add "Fall through" comment.
        (thumb2_reorg): Likewise.
        * config/arm/arm-builtins.c (arm_expand_neon_args): Use "Fall through"
        comment form expected by -Wimplicit-fallthrough.

2016-09-27  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/46266
        * input.h (RESERVED_LOCATION_P): New macro.
        * profile.c (branch_prob): Use RESERVED_LOCATION_P and
        instread of comparison with UNKNOWN_LOCATION.

2016-09-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77745
        * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
        When removing redundant stores make sure to check compatibility
        of the TBAA state for downstream accesses.
        * tree-ssa-sccvn.c (visit_reference_op_store): Likewise for when
        value-numbering virtual operands for store matches.

2016-09-27  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/51244
        * config/sh/sh.c (sh_rtx_costs): Fix return value of SET of movt and
        movrt patterns.  Match them before anything else in the SET case.

2016-09-27  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/7970
        PR gcov-profile/16855
        PR gcov-profile/44779
        * coverage.c (build_gcov_exit_decl): New function.
        (coverage_obj_init): Call the function and generate __gcov_exit
        destructor.
        * doc/gcov.texi: Document when __gcov_exit function is called.

2016-09-27  Marek Polacek  <polacek@redhat.com>

        PR bootstrap/77751
        * Makefile.in (insn-attrtab.o-warn, insn-dfatab.o-warn,
        insn-latencytab.o-warn, insn-output.o-warn, insn-emit.o-warn): Use
        -Wno-error instead of -Wno-implicit-fallthrough.

2016-09-27  Martin Liska  <mliska@suse.cz>

        PR bootstrap/77749
        * gcov-counter.def: Remove GCOV_COUNTER_V_DELTA.

2016-09-27  Jakub Jelinek  <jakub@redhat.com>

        * combine.c (simplify_comparison): Add canonical FALLTHROUGH comments.
        * config/i386/i386.c (ix86_dep_by_shift_count_body): Add FALLTHROUGH
        comments.  Remove break after return.
        (ix86_fp_compare_code_to_integer, has_dispatch,
        ix86_simd_clone_usable): Remove break after return.

2016-09-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR rlt-optimization/77714
        * lra-eliminations.c (eliminate_regs_in_insn): Avoid alias on
        REG_EQUAL note.

2016-09-27  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR ipa/77677
        * ipa-prop.c (ipa_compute_jump_functions_for_edge): Use
        extract_range_from_unary_expr to convert value_range.
        * tree-vrp.c (extract_range_from_unary_expr_1): Rename to.
        (extract_range_from_unary_expr): This.
        * tree-vrp.h (extract_range_from_unary_expr): Declare.

2016-09-27  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (movcc_internal1): Disparage using CTR or LR.

2016-09-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/i386/i386.c (ix86_print_operand)
        [HAVE_AS_IX86_CMOV_SUN_SYNTAX]: Add gcc_fallthrough.
        * config/sparc/sparc.c (check_pic): Add fallthrough comment.
        (epilogue_renumber): Likewise.

2016-09-26  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/77719
        * tree-ssa-reassoc.c (make_new_ssa_for_def): Use gimple_get_lhs
        to get lhs instead of gimple_assign_lhs as stmt can be builtins too.

2016-09-26  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * tree.h (memmodel_from_int, memmodel_base, is_mm_relaxed,
        is_mm_consume, is_mm_acquire, is_mm_release, is_mm_acq_rel,
        is_mm_seq_cst, is_mm_sync): Move to ...
        * memmodel.h: This.  New file.
        * builtins.c: Include memmodel.h.
        * optabs.c: Likewise.
        * tsan.c: Likewise.
        * config/aarch64/aarch64.c: Likewise.
        * config/alpha/alpha.c: Likewise.
        * config/arm/arm.c: Likewise.
        * config/i386/i386.c: Likewise.
        * config/ia64/ia64.c: Likewise.
        * config/mips/mips.c: Likewise.
        * config/rs6000/rs6000.c: Likewise.
        * config/sparc/sparc.c: Likewise.
        * genconditions.c: Include memmodel.h in generated file.
        * genemit.c: Likewise.
        * genoutput.c: Likewise.
        * genpeep.c: Likewise.
        * genpreds.c: Likewise.
        * genrecog.c: Likewise.

2016-09-26  David Malcolm  <dmalcolm@redhat.com>

        * read-rtl.c (read_rtx_code): Rename local "i" to "idx", and use
        "c" instead when parsing characters.  Move operand parsing into...
        (read_rtx_operand): ...this new function, renaming "i" to "idx",
        and tightening the scope of various locals.

2016-09-26  Liu Hao  <lh_mouse@126.com>

        * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Fix typo.

2016-09-26  Marek Polacek  <polacek@redhat.com>

        * system.h: Use __has_attribute to check whether the fallthrough
        attribute is supported.

2016-09-26  Marek Polacek  <polacek@redhat.com>

        * ipa-inline-analysis.c (find_foldable_builtin_expect): Use
        gimple_call_internal_p.
        * ipa-split.c (find_return_bb): Likewise.
        (execute_split_functions): Likewise.
        * omp-low.c (dump_oacc_loop_part): Likewise.
        (oacc_loop_xform_head_tail): Likewise.
        * predict.c (predict_loops): Likewise.
        * sanopt.c (pass_sanopt::execute): Likewise.
        * tree-cfg.c (get_abnormal_succ_dispatcher): Likewise.
        * tree-parloops.c (oacc_entry_exit_ok_1): Likewise.
        * tree-stdarg.c (gimple_call_ifn_va_arg_p): Remove function.
        (expand_ifn_va_arg_1): Use gimple_call_internal_p.
        (expand_ifn_va_arg): Likewise.
        * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
        (optimize_mask_stores): Likewise.
        * tree-vect-stmts.c (vect_simd_lane_linear): Likewise.
        (vect_transform_stmt): Likewise.
        * tree-vectorizer.c (vect_loop_vectorized_call): Likewise.
        * tsan.c (instrument_memory_accesses): Likewise.

2016-09-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
            Alexander Monakov  <amonakov@ispras.ru>

        * regrename.c (rename_chains): Check
        HARD_FRAME_POINTER_IS_FRAME_POINTER rather than
        HARD_FRAME_POINTER_REGNUM when picking unavailable registers.
        * sel-sched.c (mark_unavailable_hard_regs): Likewise.

2016-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_rtx_costs): Add /* fallthrough */.
        (s390_sched_score): Likewise.

2016-09-26  Martin Liska  <mliska@suse.cz>

        * doc/gcov.texi: Update program output of gcov tool.

2016-09-26  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/23332
        * profile.c (instrument_values): Do not handle HIST_TYPE_CONST_DELTA.
        * tree-profile.c (gimple_gen_const_delta_profiler): Remove.
        * value-prof.c (dump_histogram_value): Do not handle
        HIST_TYPE_CONST_DELTA.
        (stream_in_histogram_value): Likewise.
        (gimple_find_values_to_profile): Likewise.
        * value-prof.h (enum hist_type): Likewise.

2016-09-26  Martin Liska  <mliska@suse.cz>

        * common.opt: Exclude SANITIZE_UNREACHABLE and SANITIZE_RETURN
        from default sanitize recover values.
        * doc/invoke.texi: Fix documentation related to -fsanitize=leak,
        -fsanitize=address, -fsanitize=thread and -fsanitize-recover.
        * flag-types.h: Replace couple of 1 << x to 1UL << x, make it
        consistent.
        * opts.c (finish_options): Do a generic loop over options
        that can be recovered.
        (parse_sanitizer_options): Exclude SANITIZE_UNREACHABLE and
        SANITIZE_RETURN.
        (common_handle_option): Likewise.
        * opts.h: Declare can_recover to sanitizer_opts_s.

2016-09-26  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * target.def(elf_flags_numeric): Change documentation to present tense.
        * doc/tm.texi: Regenerate.

2016-09-26  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * Makefile.in (insn-attrtab.o-warn, insn-dfatab.o-warn,
        insn-latencytab.o-warn, insn-output.o-warn, insn-emit.o-warn): Add
        -Wno-switch-fallthrough.
        * builtins.c (expand_builtin_int_roundingfn_2): Add gcc_fallthrough.
        (expand_builtin): Likewise.
        * config/rs6000/rs6000.c (rs6000_builtin_vectorized_libmass): Likewise.
        * convert.c (convert_to_real_1): Likewise.
        (convert_to_integer_1): Likewise.
        * final.c (output_alternate_entry_point): Likewise.
        * genattrtab.c (make_canonical): Likewise.
        (write_test_expr): Likewise.
        * genpreds.c (validate_exp): Likewise.
        * gimple-ssa-strength-reduction.c
        (find_candidates_dom_walker::before_dom_children): Likewise.
        * godump.c (go_format_type): Likewise.
        * reload1.c (elimination_effects): Likewise.
        * resource.c (mark_referenced_resources): Likewise.
        (mark_set_resources): Likewise.
        * tree-ssa-loop-ivopts.c (find_deriving_biv_for_expr): Likewise.
        * varasm.c (output_addressed_constants): Likewise.

2016-09-26  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * common.opt (Wimplicit-fallthrough): New option.
        * doc/extend.texi: Document statement attributes and the fallthrough
        attribute.
        * doc/invoke.texi: Document -Wimplicit-fallthrough.
        * gimple.h (gimple_call_internal_p): New function.
        * gimplify.c (struct gimplify_ctx): Add in_switch_expr.
        (struct label_entry): New struct.
        (find_label_entry): New function.
        (case_label_p): New function.
        (collect_fallthrough_labels): New function.
        (last_stmt_in_scope): New function.
        (should_warn_for_implicit_fallthrough): New function.
        (warn_implicit_fallthrough_r): New function.
        (maybe_warn_implicit_fallthrough): New function.
        (expand_FALLTHROUGH_r): New function.
        (expand_FALLTHROUGH): New function.
        (gimplify_switch_expr): Call maybe_warn_implicit_fallthrough and
        expand_FALLTHROUGH for the innermost GIMPLE_SWITCH.
        (gimplify_label_expr): New function.
        (gimplify_case_label_expr): Set location.
        (gimplify_expr): Call gimplify_label_expr.
        * internal-fn.c (expand_FALLTHROUGH): New function.
        * internal-fn.def (FALLTHROUGH): New internal function.
        * langhooks.c (lang_GNU_OBJC): New function.
        * langhooks.h (lang_GNU_OBJC): Declare.
        * system.h (gcc_fallthrough): Define.
        * tree-core.h: Add FALLTHROUGH_LABEL_P comment.
        * tree.h (FALLTHROUGH_LABEL_P): Define.

2016-09-26  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (stripattributes): Remove unused function.
        (DEBUG_NORM_MACINFO_SECTION): Rename to DEBUG_MACINFO_SECTION.
        Push dwarf_split_debug_info handling into init_sections_and_labels.
        (DEBUG_NORM_MACRO_SECTION): Likewise to DEBUG_MACRO_SECTION.
        (DEBUG_MACRO_SECTION_FLAGS): Remove.
        (debug_macinfo_section_name): New global.
        (output_macinfo): Use debug_macinfo_section_name.
        (init_sections_and_labels): Split out section and label generation
        from dwarf2out_init.  Set debug_macinfo_section_name.
        (dwarf2out_init): Move text section label generation and emission
        to ...
        (dwarf2out_assembly_start): ... here.
        (dwarf2out_finish): Call init_sections_and_labels before DWARF
        output starts.

2016-09-26  Richard Biener  <rguenther@suse.de>

        PR debug/77692
        * cgraphunit.c (analyze_functions): Before early removing
        global vars calls the late_global_decl debug handler mark
        the variable as readonly.

2016-09-25  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/51244
        * config/sh/sh.c (sh_movt_set_dest, sh_movrt_set_dest): Add overloads.
        (sh_rtx_costs): Handle SET of movt and movrt patterns.
        * cnofig/sh/sh-protos.h (sh_movt_set_dest, sh_movrt_set_dest): Forward
        declare new overloads.
        * config/sh/sh.md (*cset_zero): Add variant that takes a treg_set_expr
        operand.

2016-09-24  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (expand_block_compare, do_load_for_compare):
        Change TARGET_LITTLE_ENDIAN to !BYTES_BIG_ENDIAN.

2016-09-24  David Edelsohn  <dje.gcc@gmail.com>

        * configure.ac (gcc_cv_as_aix_dwloc): Fix typo in assembly fragment.
        * configure: Regenerate.

2016-09-24  Marek Polacek  <polacek@redhat.com>

        PR c/77490
        * doc/invoke.texi: Document -Wbool-operation.

2016-09-23  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        * config/rs6000/rs6000.md (cmpmemsi): New define_expand.
        * config/rs6000/rs6000.c (expand_block_compare): New function used by
        cmpmemsi pattern to do builtin expansion of memcmp ().
        (compute_current_alignment): Add helper function for
        expand_block_compare used to compute alignment as the compare proceeds.
        (select_block_compare_mode): Used by expand_block_compare to select
        the mode used for reading the next chunk of bytes in the compare.
        (do_load_for_compare): Used by expand_block_compare to emit the load
        insns for the compare.
        (rs6000_emit_dot_insn): Moved this function to avoid a forward
        reference from expand_block_compare ().
        * config/rs6000/rs6000-protos.h (expand_block_compare): Add a
        prototype for this function.
        * config/rs6000/rs6000.opt (mblock-compare-inline-limit): Add a new
        target option for controlling how much code inline expansion of
        memcmp() will be allowed to generate.

2016-09-23  Jakub Jelinek  <jakub@redhat.com>

        * hooks.c (hook_bool_bool_false, hook_bool_bool_gcc_optionsp_false,
        hook_bool_mode_false, hook_bool_mode_true,
        hook_bool_mode_const_rtx_false, hook_bool_mode_const_rtx_true,
        hook_bool_mode_rtx_false, hook_bool_mode_rtx_true,
        hook_bool_const_rtx_insn_const_rtx_insn_true,
        hook_bool_mode_uhwi_false, hook_void_FILEptr_constcharptr,
        hook_bool_FILEptr_rtx_false, hook_bool_gsiptr_false,
        hook_bool_const_tree_hwi_hwi_const_tree_false,
        hook_bool_const_tree_hwi_hwi_const_tree_true,
        default_can_output_mi_thunk_no_vcall, hook_int_uint_mode_1,
        hook_int_const_tree_0, hook_int_const_tree_const_tree_1,
        hook_int_rtx_0, hook_int_rtx_bool_0, hook_void_tree,
        hook_void_constcharptr, hook_void_tree_treeptr, hook_void_int_int,
        hook_bool_tree_false, hook_bool_const_tree_false, hook_bool_tree_true,
        hook_bool_const_tree_true, hook_bool_tree_tree_false,
        hook_bool_tree_tree_true, hook_bool_tree_bool_false,
        hook_bool_rtx_insn_true, hook_bool_rtx_false,
        hook_bool_uintp_uintp_false,
        hook_bool_rtx_mode_int_int_intp_bool_false, hook_rtx_rtx_null,
        hook_rtx_tree_int_null, hook_uint_mode_0,
        hook_constcharptr_const_tree_null, hook_tree_tree_int_treep_bool_null,
        hook_tree_tree_tree_null, hook_tree_tree_tree_tree_null,
        hook_constcharptr_const_rtx_insn_null,
        hook_constcharptr_const_tree_const_tree_null,
        hook_constcharptr_int_const_tree_null,
        hook_constcharptr_int_const_tree_const_tree_null,
        hook_tree_const_tree_null, hook_bool_rtx_insn_int_false,
        hook_void_rtx_insn_int, hook_void_gcc_optionsp): For arguments with
        ATTRIBUTE_UNUSED, remove parameter name as well as ATTRIBUTE_UNUSED.

        * vec.h (vNULL): Extend comment to say = vNULL initialization
        isn't needed for static vars.

        * sel-sched-ir.c (sel_global_bb_info, sel_region_bb_info,
        loop_nests, s_i_d, last_added_blocks): Remove unnecessary
        = vNULL initialization of file scope vec.
        * passes.c (pass_tab, enabled_pass_uid_range_tab,
        disabled_pass_uid_range_tab): Likewise.
        * haifa-sched.c (sched_luids, h_i_d): Likewise.
        * tree-chkp-opt.c (check_infos): Likewise.
        * sel-sched.c (vec_av_set, vec_temp_moveop_nops): Likewise.

        * vec.h (vnull::operator vec): Add constexpr keyword for
        C++11 and later.

2016-09-23  Doug Gilmore  <doug.gilmore@imgtec.com>

        PR tree-optimization/77654
        * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Add call
        to duplicate_ssa_name_ptr_info.

2016-09-23  David Malcolm  <dmalcolm@redhat.com>

        PR preprocessor/77672
        * input.c (selftest::test_lexer_string_locations_simple): Update
        test to expect location information of the terminator character
        at the location of the final closing quote.
        (selftest::test_lexer_string_locations_hex): Likewise.
        (selftest::test_lexer_string_locations_oct): Likewise.
        (selftest::test_lexer_string_locations_letter_escape_1): Likewise.
        (selftest::test_lexer_string_locations_letter_escape_2): Likewise.
        (selftest::test_lexer_string_locations_ucn4): Likewise.
        (selftest::test_lexer_string_locations_ucn8): Likewise.
        (selftest::test_lexer_string_locations_u8): Likewise.
        (selftest::test_lexer_string_locations_utf8_source): Likewise.
        (selftest::test_lexer_string_locations_concatenation_1): Likewise.
        (selftest::test_lexer_string_locations_concatenation_2): Likewise.
        (selftest::test_lexer_string_locations_concatenation_3): Likewise.
        (selftest::test_lexer_string_locations_macro): Likewise.
        (selftest::test_lexer_string_locations_long_line): Likewise.

2016-09-23  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.c (visit_reference_op_call): Value number
        virtual definition to virtual use if the call devirtualizes
        to a const or pure function.
        (visit_use): Also visit calls we can devirtualize to a
        const or pure function.

2016-09-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77697
        * tree-ssa-forwprop.c (defcodefor_name): Remove bogus code,
        signal error if we have sth ternary or unhandled.

2016-09-23  Matthew Wahab  <matthew.wahab@arm.com>

        * config/arm/arm_neon.h (vabd_f16): New.
        (vabdq_f16): New.
        (vabs_f16): New.
        (vabsq_f16): New.
        (vadd_f16): New.
        (vaddq_f16): New.
        (vcage_f16): New.
        (vcageq_f16): New.
        (vcagt_f16): New.
        (vcagtq_f16): New.
        (vcale_f16): New.
        (vcaleq_f16): New.
        (vcalt_f16): New.
        (vcaltq_f16): New.
        (vceq_f16): New.
        (vceqq_f16): New.
        (vceqz_f16): New.
        (vceqzq_f16): New.
        (vcge_f16): New.
        (vcgeq_f16): New.
        (vcgez_f16): New.
        (vcgezq_f16): New.
        (vcgt_f16): New.
        (vcgtq_f16): New.
        (vcgtz_f16): New.
        (vcgtzq_f16): New.
        (vcle_f16): New.
        (vcleq_f16): New.
        (vclez_f16): New.
        (vclezq_f16): New.
        (vclt_f16): New.
        (vcltq_f16): New.
        (vcltz_f16): New.
        (vcltzq_f16): New.
        (vcvt_f16_s16): New.
        (vcvt_f16_u16): New.
        (vcvt_s16_f16): New.
        (vcvt_u16_f16): New.
        (vcvtq_f16_s16): New.
        (vcvtq_f16_u16): New.
        (vcvtq_s16_f16): New.
        (vcvtq_u16_f16): New.
        (vcvta_s16_f16): New.
        (vcvta_u16_f16): New.
        (vcvtaq_s16_f16): New.
        (vcvtaq_u16_f16): New.
        (vcvtm_s16_f16): New.
        (vcvtm_u16_f16): New.
        (vcvtmq_s16_f16): New.
        (vcvtmq_u16_f16): New.
        (vcvtn_s16_f16): New.
        (vcvtn_u16_f16): New.
        (vcvtnq_s16_f16): New.
        (vcvtnq_u16_f16): New.
        (vcvtp_s16_f16): New.
        (vcvtp_u16_f16): New.
        (vcvtpq_s16_f16): New.
        (vcvtpq_u16_f16): New.
        (vcvt_n_f16_s16): New.
        (vcvt_n_f16_u16): New.
        (vcvtq_n_f16_s16): New.
        (vcvtq_n_f16_u16): New.
        (vcvt_n_s16_f16): New.
        (vcvt_n_u16_f16): New.
        (vcvtq_n_s16_f16): New.
        (vcvtq_n_u16_f16): New.
        (vfma_f16): New.
        (vfmaq_f16): New.
        (vfms_f16): New.
        (vfmsq_f16): New.
        (vmax_f16): New.
        (vmaxq_f16): New.
        (vmaxnm_f16): New.
        (vmaxnmq_f16): New.
        (vmin_f16): New.
        (vminq_f16): New.
        (vminnm_f16): New.
        (vminnmq_f16): New.
        (vmul_f16): New.
        (vmul_lane_f16): New.
        (vmul_n_f16): New.
        (vmulq_f16): New.
        (vmulq_lane_f16): New.
        (vmulq_n_f16): New.
        (vneg_f16): New.
        (vnegq_f16): New.
        (vpadd_f16): New.
        (vpmax_f16): New.
        (vpmin_f16): New.
        (vrecpe_f16): New.
        (vrecpeq_f16): New.
        (vrnd_f16): New.
        (vrndq_f16): New.
        (vrnda_f16): New.
        (vrndaq_f16): New.
        (vrndm_f16): New.
        (vrndmq_f16): New.
        (vrndn_f16): New.
        (vrndnq_f16): New.
        (vrndp_f16): New.
        (vrndpq_f16): New.
        (vrndx_f16): New.
        (vrndxq_f16): New.
        (vrsqrte_f16): New.
        (vrsqrteq_f16): New.
        (vrecps_f16): New.
        (vrecpsq_f16): New.
        (vrsqrts_f16): New.
        (vrsqrtsq_f16): New.
        (vsub_f16): New.
        (vsubq_f16): New.

2016-09-23  Matthew Wahab  <matthew.wahab@arm.com>

        * config.gcc (extra_headers): Add arm_fp16.h
        * config/arm/arm_fp16.h: New.
        * config/arm/arm_neon.h: Include "arm_fp16.h".

2016-09-23  Matthew Wahab  <matthew.wahab@arm.com>

        * config/arm/arm_neon_builtins.def (vadd): New (v8hf, v4hf
        variants).
        (vmulf): New (v8hf, v4hf variants).
        (vfma): New (v8hf, v4hf variants).
        (vfms): New (v8hf, v4hf variants).
        (vsub): New (v8hf, v4hf variants).
        (vcage): New (v8hf, v4hf variants).
        (vcagt): New (v8hf, v4hf variants).
        (vcale): New (v8hf, v4hf variants).
        (vcalt): New (v8hf, v4hf variants).
        (vceq): New (v8hf, v4hf variants).
        (vcgt): New (v8hf, v4hf variants).
        (vcge): New (v8hf, v4hf variants).
        (vcle): New (v8hf, v4hf variants).
        (vclt): New (v8hf, v4hf variants).
        (vceqz): New (v8hf, v4hf variants).
        (vcgez): New (v8hf, v4hf variants).
        (vcgtz): New (v8hf, v4hf variants).
        (vcltz): New (v8hf, v4hf variants).
        (vclez): New (v8hf, v4hf variants).
        (vabd): New (v8hf, v4hf variants).
        (vmaxf): New (v8hf, v4hf variants).
        (vmaxnm): New (v8hf, v4hf variants).
        (vminf): New (v8hf, v4hf variants).
        (vminnm): New (v8hf, v4hf variants).
        (vpmaxf): New (v4hf variant).
        (vpminf): New (v4hf variant).
        (vpadd): New (v4hf variant).
        (vrecps): New (v8hf, v4hf variants).
        (vrsqrts): New (v8hf, v4hf variants).
        (vabs): New (v8hf, v4hf variants).
        (vneg): New (v8hf, v4hf variants).
        (vrecpe): New (v8hf, v4hf variants).
        (vrnd): New (v8hf, v4hf variants).
        (vrnda): New (v8hf, v4hf variants).
        (vrndm): New (v8hf, v4hf variants).
        (vrndn): New (v8hf, v4hf variants).
        (vrndp): New (v8hf, v4hf variants).
        (vrndx): New (v8hf, v4hf variants).
        (vrsqrte): New (v8hf, v4hf variants).
        (vmul_lane): Add v4hf and v8hf variants.
        (vmul_n): Add v4hf and v8hf variants.
        (vext): New (v8hf, v4hf variants).
        (vcvts): New (v8hi, v4hi variants).
        (vcvts): New (v8hf, v4hf variants).
        (vcvtu): New (v8hi, v4hi variants).
        (vcvtu): New (v8hf, v4hf variants).
        (vcvts_n): New (v8hf, v4hf variants).
        (vcvtu_n): New (v8hi, v4hi variants).
        (vcvts_n): New (v8hi, v4hi variants).
        (vcvtu_n): New (v8hf, v4hf variants).
        (vbsl): New (v8hf, v4hf variants).
        (vcvtas): New (v8hf, v4hf variants).
        (vcvtau): New (v8hf, v4hf variants).
        (vcvtms): New (v8hf, v4hf variants).
        (vcvtmu): New (v8hf, v4hf variants).
        (vcvtns): New (v8hf, v4hf variants).
        (vcvtnu): New (v8hf, v4hf variants).
        (vcvtps): New (v8hf, v4hf variants).
        (vcvtpu): New (v8hf, v4hf variants).

2016-09-23  Matthew Wahab  <matthew.wahab@arm.com>

        * config/arm/arm-builtins.c (hf_UP): New.
        (si_UP): New.
        (vfp_builtin_data): New.  Update comment.
        (enum arm_builtins): Include "arm_vfp_builtins.def".
        (ARM_BUILTIN_VFP_PATTERN_START): New.
        (arm_init_vfp_builtins): New.
        (arm_init_builtins): Add arm_init_vfp_builtins.
        (arm_expand_vfp_builtin): New.
        (arm_expand_builtins): Update for arm_expand_vfp_builtin.  Fix
        long line.
        * config/arm/arm_vfp_builtins.def: New file.
        * config/arm/t-arm (arm.o): Add arm_vfp_builtins.def.
        (arm-builtins.o): Likewise.

2016-09-23  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR ipa/77677
        * ipa-cp.c (propagate_vr_accross_jump_function): Drop TREE_OVERFLOW
        from constant while creating value range.

2016-09-23  Renlin Li  <renlin.li@arm.com>

        * ira.c (ira): Move ira_use_lra_p initialization code to ...
        (ira_init_once): Here.

2016-09-23  Uros Bizjak  <ubizjak@gmail.com>
            Jakub Jelinek  <jakub@redhat.com>

        * hooks.h (hook_uint_uintp_false): Rename to...
        (hook_bool_uint_uintp_false): ... this.
        * hooks.c (hook_uint_uintp_false): Rename to...
        (hook_bool_uint_uintp_false): ... this.
        * target.def (elf_flags_numeric): Use hook_bool_uint_uintp_false
        instead of hook_uint_uintp_false.

2016-09-23  Matthew Wahab  <matthew.wahab@arm.com>

        * config/arm/arm-builtins.c (arm_init_neon_builtin): New.
        (arm_init_builtins): Move body of a loop to the standalone
        function arm_init_neon_builtin.
        (arm_expand_neon_builtin_1): New.  Update comment.  Function body
        moved from arm_neon_builtin with some white-space fixes.
        (arm_expand_neon_builtin): Move code into the standalone function
        arm_expand_neon_builtin_1.

2016-09-23  Matthew Wahab  <matthew.wahab@arm.com>

        * config/arm/iterators.md (VCVTHI): New.
        (NEON_VCMP): Add UNSPEC_VCLT and UNSPEC_VCLE.  Fix a long line.
        (NEON_VAGLTE): New.
        (VFM_LANE_AS): New.
        (VH_CVTTO): New.
        (V_reg): Add HF, V4HF and V8HF.  Fix white-space.
        (V_HALF): Add V4HF.  Fix white-space.
        (V_if_elem): Add HF, V4HF and V8HF.  Fix white-space.
        (V_s_elem): Likewise.
        (V_sz_elem): Fix white-space.
        (V_elem_ch): Likewise.
        (VH_elem_ch): New.
        (scalar_mul_constraint): Add V8HF and V4HF.
        (Is_float_mode): Fix white-space.
        (Is_d_reg): Add V4HF and V8HF.  Fix white-space.
        (q): Add HF.  Fix white-space.
        (float_sup): New.
        (float_SUP): New.
        (cmp_op_unsp): Add UNSPEC_VCALE and UNSPEC_VCALT.
        (neon_vfm_lane_as): New.
        * config/arm/neon.md (add<mode>3_fp16): New.
        (sub<mode>3_fp16): New.
        (mul<mode>3add<mode>_neon): New.
        (fma<VH:mode>4_intrinsic): New.
        (fmsub<VCVTF:mode>4_intrinsic): Fix white-space.
        (fmsub<VH:mode>4_intrinsic): New.
        (<absneg_str><mode>2): New.
        (neon_v<absneg_str><mode>): New.
        (neon_v<fp16_rnd_str><mode>): New.
        (neon_vrsqrte<mode>): New.
        (neon_vpaddv4hf): New.
        (neon_vadd<mode>): New.
        (neon_vsub<mode>): New.
        (neon_vmulf<mode>): New.
        (neon_vfma<VH:mode>): New.
        (neon_vfms<VH:mode>): New.
        (neon_vc<cmp_op><mode>): New.
        (neon_vc<cmp_op><mode>_fp16insn): New
        (neon_vc<cmp_op_unsp><mode>_fp16insn_unspec): New.
        (neon_vca<cmp_op><mode>): New.
        (neon_vca<cmp_op><mode>_fp16insn): New.
        (neon_vca<cmp_op_unsp><mode>_fp16insn_unspec): New.
        (neon_vc<cmp_op>z<mode>): New.
        (neon_vabd<mode>): New.
        (neon_v<maxmin>f<mode>): New.
        (neon_vp<maxmin>fv4hf: New.
        (neon_<fmaxmin_op><mode>): New.
        (neon_vrecps<mode>): New.
        (neon_vrsqrts<mode>): New.
        (neon_vrecpe<mode>): New (VH variant).
        (neon_vdup_lane<mode>_internal): New.
        (neon_vdup_lane<mode>): New.
        (neon_vcvt<sup><mode>): New (VCVTHI variant).
        (neon_vcvt<sup><mode>): New (VH variant).
        (neon_vcvt<sup>_n<mode>): New (VH variant).
        (neon_vcvt<sup>_n<mode>): New (VCVTHI variant).
        (neon_vcvt<vcvth_op><sup><mode>): New.
        (neon_vmul_lane<mode>): New.
        (neon_vmul_n<mode>): New.
        * config/arm/unspecs.md (UNSPEC_VCALE): New
        (UNSPEC_VCALT): New.
        (UNSPEC_VFMA_LANE): New.
        (UNSPECS_VFMS_LANE): New.

2016-09-23  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/s390.md ("*extzv<mode>_zEC12", "*extzv<mode>_z10")
        ("*extzv<mode><clobbercc_or_nocc>"):
        Correct a typo in a comment.
        Merged patterns.
        ("*insv<mode>_zEC12", "*insv<mode>_z10")
        ("*insv<mode><clobbercc_or_nocc>"): Ditto.
        ("*insv<mode>_zEC12_appendbitsleft")
        ("*insv<mode><clobbercc_or_nocc>_appendbitsleft")
        ("*insv<mode>_z10_appendbitsleft"): Ditto.
        ("*insv<mode>_zEC12_noshift", "*insv<mode>_z10_noshift")
        ("*insv<mode><clobbercc_or_nocc>_noshift"): Ditto.
        Provide pattern with operands switched.
        ("*pre_z10_extv<mode>"):
        Use new subst patterns.
        ("*extzvdi<clobbercc_or_nocc>_lshiftrt", "*<risbg_n>_ior_and_sr_ze")
        ("*extvsidi<clobbercc_or_nocc>", "*<risbg_n>_and_subregdi_rotr")
        ("*<risbg_n>_and_subregdi_rotl", "*<risbg_n>_di_and_rot")
        ("*insv_z10_noshift_cc", "*insv_z10_noshift_cconly")
        ("*<risbg_n>_<mode>_ior_and_lshiftrt")
        ("*<risbg_n>_sidi_ior_and_lshiftrt")
        ("*trunc_sidi_and_subreg_lshrt<clobbercc_or_nocc>"):
        New patterns.
        ("*extzv_<mode>_sll", "*extzv_<mode>_srl")
        ("*extzv_<mode>_srl<clobbercc_or_nocc>")
        ("*extzv_<mode>_sll<clobbercc_or_nocc>"): Renamed patterns, use risbgn
        on zEC12.
        ("SINT"): New mode_iterator with SI, HI, QI.
        * config/s390/subst.md ("clobbercc_or_nocc_subst", "z10_or_zEC12_cond")
        ("clobbercc_or_nocc", "risbg_n"): New constructs for risbg pattern
        duplication.

2016-09-23  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/predicates.md ("contiguous_bitmask_operand"): Adapt to
        new interface of s390_contiguous_bitmask_p.
        ("contiguous_bitmask_nowrap_operand"): New predicate.
        ("*anddi3_cc", "*anddi3_cconly", "*anddi3"): Replace NxxDq with NxxDw.
        * config/s390/constraints.md ("NxxDw", "NxxSq"): Adapt to new interface
        of s390_contiguous_bitmask_p.
        ("NxxDw"): Rename NxxDq constraint to NxxDw.
        ("NxxSw"): New constraint.
        * config/s390/s390.md ("*andsi3_zarch"): Enable bitmask wraparound.
        * config/s390/s390-protos.h (s390_contiguous_bitmask_p): Updated
        interface.
        (s390_contiguous_bitmask_nowrap_p): Export.
        * config/s390/s390.c (s390_contiguous_bitmask_nowrap_p): New name of
        former s390_contiguous_bitmask_p.
        (s390_contiguous_bitmask_p): Use s390_contiguous_bitmask_nowrap_p to
        detect contiguous bit ranges with wraparound.  Change signature to
        return START and END position instead of POS and LENGTH.
        (s390_contiguous_bitmask_vector_p): Remove extra code for continous bit
        ranges with wraparound.
        (s390_extzv_shift_ok): Use s390_contiguous_bitmask_nowrap_p.
        (s390_contiguous_bitmask_vector_p,s390_extzv_shift_ok,print_operand):
        Adapt to new signature of s390_contiguous_bitmask_p.

2016-09-23  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop-manip.c (create_intersect_range_checks_index): New.
        (create_intersect_range_checks): New.
        (vect_create_cond_for_alias_checks): Call above function.

2016-09-23  Matthew Wahab  <matthew.wahab@arm.com>

        * config/arm/iterators.md (Code iterators): Fix some white-space
        in the comments.
        (GLTE): New.
        (ABSNEG): New
        (FCVT): Moved from vfp.md.
        (VCVT_HF_US_N): New.
        (VCVT_SI_US_N): New.
        (VCVT_HF_US): New.
        (VCVTH_US): New.
        (FP16_RND): New.
        (absneg_str): New.
        (FCVTI32typename): Moved from vfp.md.
        (sup): Add UNSPEC_VCVTA_S, UNSPEC_VCVTA_U, UNSPEC_VCVTM_S,
        UNSPEC_VCVTM_U, UNSPEC_VCVTN_S, UNSPEC_VCVTN_U, UNSPEC_VCVTP_S,
        UNSPEC_VCVTP_U, UNSPEC_VCVT_HF_S_N, UNSPEC_VCVT_HF_U_N,
        UNSPEC_VCVT_SI_S_N, UNSPEC_VCVT_SI_U_N,  UNSPEC_VCVTH_S_N,
        UNSPEC_VCVTH_U_N, UNSPEC_VCVTH_S and UNSPEC_VCVTH_U.
        (vcvth_op): New.
        (fp16_rnd_str): New.
        (fp16_rnd_insn): New.
        * config/arm/unspecs.md (UNSPEC_VCVT_HF_S_N): New.
        (UNSPEC_VCVT_HF_U_N): New.
        (UNSPEC_VCVT_SI_S_N): New.
        (UNSPEC_VCVT_SI_U_N): New.
        (UNSPEC_VCVTH_S): New.
        (UNSPEC_VCVTH_U): New.
        (UNSPEC_VCVTA_S): New.
        (UNSPEC_VCVTA_U): New.
        (UNSPEC_VCVTM_S): New.
        (UNSPEC_VCVTM_U): New.
        (UNSPEC_VCVTN_S): New.
        (UNSPEC_VCVTN_U): New.
        (UNSPEC_VCVTP_S): New.
        (UNSPEC_VCVTP_U): New.
        (UNSPEC_VCVTP_S): New.
        (UNSPEC_VCVTP_U): New.
        (UNSPEC_VRND): New.
        (UNSPEC_VRNDA): New.
        (UNSPEC_VRNDI): New.
        (UNSPEC_VRNDM): New.
        (UNSPEC_VRNDN): New.
        (UNSPEC_VRNDP): New.
        (UNSPEC_VRNDX): New.
        * config/arm/vfp.md (<absneg_str>hf2): New.
        (neon_vabshf): New.
        (neon_v<fp16_rnd_str>hf): New.
        (neon_vrndihf): New.
        (addhf3): New.
        (subhf3): New.
        (divhf3): New.
        (mulhf3): New.
        (*mulsf3neghf_vfp): New.
        (*negmulhf3_vfp): New.
        (*mulsf3addhf_vfp): New.
        (*mulhf3subhf_vfp): New.
        (*mulhf3neghfaddhf_vfp): New.
        (*mulhf3neghfsubhf_vfp): New.
        (fmahf4): New.
        (neon_vfmahf): New.
        (fmsubhf4_fp16): New.
        (neon_vfmshf): New.
        (*fnmsubhf4): New.
        (*fnmaddhf4): New.
        (neon_vsqrthf): New.
        (neon_vrsqrtshf): New.
        (FCVT): Move to iterators.md.
        (FCVTI32typename): Likewise.
        (neon_vcvth<sup>hf): New.
        (neon_vcvth<sup>si): New.
        (neon_vcvth<sup>_nhf_unspec): New.
        (neon_vcvth<sup>_nhf): New.
        (neon_vcvth<sup>_nsi_unspec): New.
        (neon_vcvth<sup>_nsi): New.
        (neon_vcvt<vcvth_op>h<sup>si): New.
        (neon_<fmaxmin_op>hf): New.

2016-09-23  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/s390.md (bitoff, bitoff_plus): Neq mode attributes.
        ("*extzv<mode>_zEC12", "*insv<mode>_zEC12", "*insv<mode>_z10")
        ("*insv<mode>_zEC12_appendbitsleft")
        ("*insv<mode>_z10_appendbitsleft", "*r<noxa>sbg_<mode>_sll")
        ("*r<noxa>sbg_<mode>_srl"): Use new attributes.

2016-09-23  Jakub Jelinek  <jakub@redhat.com>

        * ipa-cp.c (ipcp_store_vr_results): Avoid static local var zero.
        * sreal.h (sreal::min, sreal::max): Avoid static local vars,
        construct values without normalization.
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Don't initialize
        static local lhs_ops to vNULL.

2016-09-23  Matthew Wahab  <matthew.wahab@arm.com>
            Jiong Wang <jiong.wang@arm.com>

        * config/arm/arm.c (coproc_secondary_reload_class): Make HFmode
        available when FP16 instructions are available.
        (output_move_vfp): Add support for 16-bit data moves.
        (arm_validize_comparison): Fix some white-space.  Support HFmode
        by conversion to SFmode.
        * config/arm/arm.md (truncdfhf2): Fix a comment.
        (extendhfdf2): Likewise.
        (cstorehf4): New.
        (movsicc): Fix some white-space.
        (movhfcc): New.
        (movsfcc): Fix some white-space.
        (*cmovhf): New.
        * config/arm/vfp.md (*arm_movhi_vfp): Disable when VFP FP16
        instructions are available.
        (*thumb2_movhi_vfp): Likewise.
        (*arm_movhi_fp16): New.
        (*thumb2_movhi_fp16): New.
        (*movhf_vfp_fp16): New.
        (*movhf_vfp_neon): Disable when VFP FP16 instructions are available.
        (*movhf_vfp): Likewise.
        (extendhfsf2): Enable when VFP FP16 instructions are available.
        (truncsfhf2):  Enable when VFP FP16 instructions are available.

2016-09-23  Martin Liska  <mliska@suse.cz>

        * config/s390/vx-builtins.md: Replace 'adress' with 'address'.

2016-09-23  Matthew Wahab  <matthew.wahab@arm.com>

        * config/arm/arm.c (arm_evpc_neon_vuzp): Add support for V8HF and
        V4HF modes.
        (arm_evpc_neon_vtrn): Likewise.
        (arm_evpc_neon_vrev): Likewise.
        (arm_evpc_neon_vext): Likewise.
        * config/arm/arm_neon.h (vbsl_f16): New.
        (vbslq_f16): New.
        (vdup_n_f16): New.
        (vdupq_n_f16): New.
        (vdup_lane_f16): New.
        (vdupq_lane_f16): New.
        (vext_f16): New.
        (vextq_f16): New.
        (vmov_n_f16): New.
        (vmovq_n_f16): New.
        (vrev64_f16): New.
        (vrev64q_f16): New.
        (vtrn_f16): New.
        (vtrnq_f16): New.
        (vuzp_f16): New.
        (vuzpq_f16): New.
        (vzip_f16): New.
        (vzipq_f16): New.
        * config/arm/arm_neon_buillins.def (vdup_n): New (v8hf, v4hf variants).
        (vdup_lane): New (v8hf, v4hf variants).
        (vext): New (v8hf, v4hf variants).
        (vbsl): New (v8hf, v4hf variants).
        * config/arm/iterators.md (VDQWH): New.
        (VH): New.
        (V_double_vector_mode): Add V8HF and V4HF.  Fix white-space.
        (Scalar_mul_8_16): Fix white-space.
        (Is_d_reg): Add V4HF and V8HF.
        * config/arm/neon.md (neon_vdup_lane<mode>_internal): New.
        (neon_vdup_lane<mode>): New.
        (neon_vtrn<mode>_internal): Replace VDQW with VDQWH.
        (*neon_vtrn<mode>_insn): Likewise.
        (neon_vzip<mode>_internal): Likewise. Also fix white-space.
        (*neon_vzip<mode>_insn): Likewise
        (neon_vuzp<mode>_internal): Likewise.
        (*neon_vuzp<mode>_insn): Likewise
        * config/arm/vec-common.md (vec_perm_const<mode>): New.

2016-09-23  Jiong Wang  <jiong.wang@arm.com>
            Matthew Wahab  <matthew.wahab@arm.com>

        * config/arm/arm.c (output_move_vfp): Weaken assert to allow HImode.
        (arm_hard_regno_mode_ok): Allow HImode values in VFP registers.
        * config/arm/arm.md (*movhi_bytes): Disable when VFP registers are
        available.  Also fix some white-space.
        * config/arm/vfp.md (*arm_movhi_vfp): New.
        (*thumb2_movhi_vfp): New.

2016-09-23  Matthew Wahab  <matthew.wahab@arm.com>

        * config/arm/arm-c.c (arm_cpu_builtins): Define
        "__ARM_FEATURE_FP16_SCALAR_ARITHMETIC" and
        "__ARM_FEATURE_FP16_VECTOR_ARITHMETIC".

2016-09-23  Matthew Wahab  <matthew.wahab@arm.com>

        * doc/sourcebuild.texi (ARM-specific attributes): Add anchor for
        arm_v8_1a_neon_ok.  Add entries for arm_v8_2a_fp16_scalar_ok,
        arm_v8_2a_fp16_scalar_hw, arm_v8_2a_fp16_neon_ok and
        arm_v8_2a_fp16_neon_hw.
        (Add options): Add entries for arm_v8_1a_neon, arm_v8_2a_scalar,
        arm_v8_2a_neon.

2016-09-23  Matthew Wahab  <matthew.wahab@arm.com>

        * doc/sourcebuild.texi (ARM-specific attributes): Add entries for
        arm_fp16_alternative_ok and arm_fp16_none_ok.

2016-09-23  Martin Liska  <mliska@suse.cz>

        * ipa-icf.c (sem_variable::merge): Replace adress with address.

2016-09-23  Matthew Wahab  <matthew.wahab@arm.com>

        * config/arm/arm-arches.def ("armv8.1-a"): Add FL_CRC32.
        ("armv8.2-a"): New.
        ("armv8.2-a+fp16"): New.
        * config/arm/arm-protos.h (FL2_ARCH8_2): New.
        (FL2_FP16INST): New.
        (FL2_FOR_ARCH8_2A): New.
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/arm.c (arm_arch8_2): New.
        (arm_fp16_inst): New.
        (arm_option_override): Set arm_arch8_2 and arm_fp16_inst.  Check
        for incompatible fp16-format settings.
        * config/arm/arm.h (TARGET_VFP_FP16INST): New.
        (TARGET_NEON_FP16INST): New.
        (arm_arch8_2): Declare.
        (arm_fp16_inst): Declare.
        * config/arm/bpabi.h (BE8_LINK_SPEC): Add entries for
        march=armv8.2-a and march=armv8.2-a+fp16.
        * config/arm/t-aprofile (Arch Matches): Add entries for armv8.2-a
        and armv8.2-a+fp16.
        * doc/invoke.texi (ARM Options): Add "-march=armv8.1-a",
        "-march=armv8.2-a" and "-march=armv8.2-a+fp16".

2016-09-23  Martin Liska  <mliska@suse.cz>

        * doc/extend.texi: Remove fused-madd from i386 target options.

2016-09-23  Martin Liska  <mliska@suse.cz>

        * config/i386/i386.c (ix86_valid_target_attribute_inner_p):
        Handle movbe.

2016-09-23  Martin Liska  <mliska@suse.cz>

        * config/i386/i386.c (ix86_valid_target_attribute_inner_p):
        Handle crc32.

2016-09-23  Martin Liska  <mliska@suse.cz>

        PR target/71652
        * config/i386/i386.c (ix86_option_override_internal): Change
        signature and return false when there's an error related to
        arch string.
        (release_options_strings): New function.
        (ix86_valid_target_attribute_tree): Call the function.

2016-09-23  Jakub Jelinek  <jakub@redhat.com>

        * hsa-gen.c (hsa_op_immed::hsa_op_immed Use CONSTRUCTOR_NELTS (...)
        instead of vec_safe_length (CONSTRUCTOR_ELTS (...)).
        (gen_hsa_ctor_assignment): Likewise.
        * print-tree.c (print_node): Likewise.
        * tree-dump.c (dequeue_and_dump): Likewise.
        * tree-sra.c (sra_modify_constructor_assign): Likewise.
        * expr.c (store_constructor): Likewise.
        * fold-const.c (operand_equal_p): Likewise.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        * hsa-brig.c (hsa_op_immed::emit_to_buffer): Likewise.
        * ipa-icf-gimple.c (func_checker::compare_operand): Likewise.

2016-09-23  Richard Biener  <rguenther@suse.de>

        * hooks.h (hook_uint_uintp_false): Declare.

2016-09-22  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

        * config/avr/avr.c (avr_rtx_costs_1): Handle DImode MULT.
        (avr_address_cost): Replace 61 with MAX_LD_OFFSET(mode).

2016-09-22  Martin Sebor  <msebor@redhat.com>

        PR target/77676
        * gimple-ssa-sprintf.c (target_int_min, target_int_max): Use
        HOST_BITS_PER_WIDE_INT, make a static local variable auto.
        (target_int_min): Correct computation.
        (format_integer): Use long long as the argument for the ll length
        modifier.
        (format_floating): Use target_int_max().
        (get_string_length): Same.
        (format_string): Avoid setting the bounded flag for strings
        of unknown length.
        (try_substitute_return_value): Avoid setting range info when
        the result isn't bounded.
        * varasm.c (assemble_name): Increase buffer size.

2016-09-22  Andre Vieira  <andre.simoesdiasvieira@arm.com>
            Terry Guo  <terry.guo@arm.com>

        * target.def (elf_flags_numeric): New target hook.
        * targhooks.h (default_asm_elf_flags_numeric): New.
        * varasm.c (default_asm_elf_flags_numeric): New.
        (default_elf_asm_named_section): Use new target hook.
        * config/arm/arm.opt (mpure-code): New.
        * config/arm/arm.h (SECTION_ARM_PURECODE): New.
        * config/arm/arm.c (arm_asm_init_sections): Add section
        attribute to default text section if -mpure-code.
        (arm_option_check_internal): Diagnose use of option with
        non supported targets and/or options.
        (arm_asm_elf_flags_numeric): New.
        (arm_function_section): New.
        (arm_elf_section_type_flags): New.
        * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Disable
        for -mpure-code.
        * doc/texi (TARGET_ASM_ELF_FLAGS_NUMERIC): New.
        * doc/texi.in (TARGET_ASM_ELF_FLAGS_NUMERIC): Likewise.

2016-09-22  Jan Hubicka  <hubicka@ucw.cz>

        * regcprop.c (copyprop_hardreg_forward_1): Remove noop moves.

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * emit-rtl.c (next_cc0_user): Make argument type rtx_insn *.
        * rtl.h: Adjust prototype.

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * emit-rtl.c (next_active_insn): Change argument type to rtx_insn *.
        (prev_active_insn): Likewise.
        (active_insn_p): Likewise.
        * rtl.h: Adjust prototypes.
        * cfgcleanup.c (merge_blocks_move_successor_nojumps): Adjust.
        * config/arc/arc.md: Likewise.
        * config/pa/pa.c (branch_to_delay_slot_p): Likewise.
        (branch_needs_nop_p): Likewise.
        (use_skip_p): Likewise.
        * config/sh/sh.c (gen_block_redirect): Likewise.
        (split_branches): Likewise.
        * reorg.c (optimize_skip): Likewise.
        (fill_simple_delay_slots): Likewise.
        (fill_slots_from_thread): Likewise.
        (relax_delay_slots): Likewise.
        * resource.c (mark_target_live_regs): Likewise.

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * config/cris/cris.c (cris_asm_output_case_end): Change argument
        type to rtx_insn *.
        * emit-rtl.c (next_nonnote_nondebug_insn): Likewise.
        (prev_nonnote_nondebug_insn): Likewise.
        * config/cris/cris-protos.h: Adjust prototype.
        * rtl.h: Likewise.
        * jump.c (rtx_renumbered_equal_p): Adjust.

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * emit-rtl.c (prev_real_insn): Change argument type to rtx_insn *.
        * rtl.h: Adjust prototype.
        * config/sh/sh.md: Adjust.
        * dwarf2out.c (add_var_loc_to_decl): Likewise.

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * emit-rtl.c (next_nondebug_insn): Change argument type to rtx_insn *.
        (prev_nondebug_insn): Likewise.
        * loop-doloop.c (doloop_condition_get): Likewise.
        * rtl.h: Adjust prototype.
        * cfgloop.h: Likewise.

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * emit-rtl.c (next_nonnote_insn): Change argument type to rtx_insn *.
        (prev_nonnote_insn): Likewise.
        * jump.c (reversed_comparison_code_parts): Likewise.
        (reversed_comparison): Likewise.
        * rtl.h: Adjust prototypes.
        * config/arc/arc.md: Adjust.
        * cse.c (find_comparison_args): Likewise.
        * reorg.c (redundant_insn): Change return type to rtx_insn *.
        (fix_reg_dead_note): Change argument type to rtx_insn *.
        (delete_prior_computation): Likewise.
        (delete_computation): Likewise.
        (fill_slots_from_thread): Adjust.
        (relax_delay_slots): Likewise.
        * simplify-rtx.c (simplify_unary_operation_1): Likewise.
        (simplify_relational_operation_1): Likewise.
        (simplify_ternary_operation): Likewise.

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * config/arc/arc-protos.h (arc_label_align): Change type of
        variables from rtx to rtx_insn *.
        * config/arc/arc.c (arc_label_align): Likewise.
        * config/arm/arm.c (any_sibcall_could_use_r3): Likewise.
        * config/bfin/bfin.c (workaround_speculation): Likewise.
        * config/c6x/c6x.c (find_next_cycle_insn): Likewise.
        (find_last_same_clock): Likewise.
        (reorg_split_calls): Likewise.
        * config/cris/cris-protos.h (cris_cc0_user_requires_cmp): Likewise.
        * config/cris/cris.c (cris_cc0_user_requires_cmp): Likewise.
        * config/h8300/h8300-protos.h (same_cmp_preceding_p): Likewise.
        (same_cmp_following_p): Likewise.
        * config/h8300/h8300.c (same_cmp_preceding_p): Likewise.
        (same_cmp_following_p): Likwise.
        * config/m32r/m32r.c (m32r_expand_epilogue): Likewise.
        * config/nds32/nds32-protos.h (nds32_target_alignment): Likewise.
        * config/nds32/nds32.c (nds32_target_alignment): Likewise.
        * config/rl78/rl78.c (rl78_alloc_physical_registers_op2): Likewise.
        (rl78_alloc_physical_registers_cmp): Likewise.
        (rl78_alloc_physical_registers_umul): Likewise.
        (rl78_calculate_death_notes): Likewise.
        * config/s390/s390-protos.h (s390_label_align): Likewise.
        * config/s390/s390.c (s390_label_align): Likewise.
        * config/sh/sh.c (barrier_align): Likewise.
        * config/sparc/sparc-protos.h (emit_cbcond_nop): Likewise.
        * config/sparc/sparc.c (sparc_asm_function_epilogue): Likewise.
        (emit_cbcond_nop): Likewise.

2016-09-22  Martin Liska  <mliska@suse.cz>

        PR ipa/77653
        * ipa-icf.c (sem_variable::merge): Yield merge operation if
        alias address matters, not necessarily address of original.

2016-09-22  Richard Biener  <rguenther@suse.de>

        PR middle-end/77697
        * gimple-fold.c (fold_array_ctor_reference): Turn asserts into
        fold fails.

2016-09-22  Richard Biener  <rguenther@suse.de>

        PR middle-end/77677
        * gimple-match-head.c (gimple_resimplify1): Drop TREE_OVERFLOW
        from constant folding results.
        (gimple_resimplify2): Likewise.
        (gimple_resimplify3): Likewise.

2016-09-22  Richard Biener  <rguenther@suse.de>

        PR middle-end/77678
        * expr.c (expand_expr_real_1): Guard array access against negative
        offset.

2016-09-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * gimple-ssa-sprintf.c (format_floating_max): Use GMP_RNDN instead
        of MPFR_RNDN.
        (format_floating): Likewise.

2016-09-22  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/77665
        * tree-inline.c (remap_gimple_stmt): Set has_simduid_loops
        for all IFN_GOMP_SIMD_* internal fns, not just for
        IFN_GOMP_SIMD_ORDERED_*.

2016-09-21  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/77670
        * config/rs6000/predicates.md (invert_fpmask_comparison_operator):
        New predicate that matches the ISA 3.0 XSCMP{EQ,GT,GE}DP
        instructions when you want to invert the test.
        * config/rs6000/rs6000.md (fpmask<mode>): Use the arguments in the
        correct order for XXSEL.
        (mov<SFDF:mode><SFDF2:mode>cc_invert_p9): Define the inverted test
        for using XSCMP{EQ,GT,GE}DP.

2016-09-21  David Malcolm  <dmalcolm@redhat.com>

        * genconstants.c (main): Introduce noop_reader and convert call
        to read_md_files to a method call.
        * genenums.c (main): Likewise.
        * genmddeps.c (main): Likewise.
        * genpreds.c (write_tm_constrs_h): Replace use of "in_fname" with
        rtx_reader_ptr->get_top_level_filename ().
        (write_tm_preds_h): Likewise.
        (write_insn_preds_c): Likewise.
        * gensupport.c (class gen_reader): New subclass of rtx_reader.
        (rtx_handle_directive): Convert to...
        (gen_reader::handle_unknown_directive): ...this.
        (init_rtx_reader_args_cb): Convert return type from bool to
        rtx_reader *.  Create a gen_reader instance, using it for the
        call to read_md_files.  Return it if no errors occur.
        (init_rtx_reader_args): Convert return type from bool to
        rtx_reader *.
        * gensupport.h (init_rtx_reader_args_cb): Likewise.
        (init_rtx_reader_args_cb): Likewise.
        * read-md.c (struct file_name_list): Move to class rtx_reader.
        (read_md_file): Delete in favor of rtx_reader::m_read_md_file.
        (read_md_filename): Delete in favor of
        rtx_reader::m_read_md_filename.
        (read_md_lineno): Delete in favor of rtx_reader::m_read_md_lineno.
        (in_fname): Delete in favor of rtx_reader::m_toplevel_fname.
        (base_dir): Delete in favor of rtx_reader::m_base_dir.
        (first_dir_md_include): Delete in favor of
        rtx_reader::m_first_dir_md_include.
        (last_dir_md_include_ptr): Delete in favor of
        rtx_reader::m_last_dir_md_include_ptr.
        (max_include_len): Delete.
        (rtx_reader_ptr): New.
        (fatal_with_file_and_line): Use get_filename and get_lineno
        accessors of rtx_reader_ptr.
        (require_char_ws): Likewise.
        (rtx_reader::read_char): New method, based on ::read_char.
        (rtx_reader::unread_char): New method, based on ::unread_char.
        (read_escape): Use get_filename and get_lineno accessors of
        rtx_reader_ptr.
        (read_braced_string): Use get_lineno accessor of rtx_reader_ptr.
        (read_string): Use get_filename and get_lineno accessors of
        rtx_reader_ptr.
        (rtx_reader::rtx_reader): New ctor.
        (rtx_reader::~rtx_reader): New dtor.
        (handle_include): Convert from a function to...
        (rtx_reader::handle_include): ...this method, converting
        handle_directive from a callback to a virtual function.
        (handle_file): Likewise, converting to...
        (rtx_reader::handle_file): ...this method.
        (handle_toplevel_file): Likewise, converting to...
        (rtx_reader::handle_toplevel_file): ...this method.
        (rtx_reader::get_current_location): New method.
        (parse_include): Convert from a function to...
        (rtx_reader::add_include_path): ...this method, dropping redundant
        update to unused max_include_len.
        (read_md_files): Convert from a function to...
        (rtx_reader::read_md_files): ...this method, converting
        handle_directive from a callback to a virtual function.
        (noop_reader::handle_unknown_directive): New method.
        * read-md.h (directive_handler_t): Delete this typedef.
        (in_fname): Delete.
        (read_md_file): Delete.
        (read_md_lineno): Delete.
        (read_md_filename): Delete.
        (class rtx_reader): New class.
        (rtx_reader_ptr): New decl.
        (class noop_reader): New subclass of rtx_reader.
        (read_char): Reimplement in terms of rtx_reader::read_char.
        (unread_char): Reimplement in terms of rtx_reader::unread_char.
        (read_md_files): Delete.
        * read-rtl.c (read_rtx_code): Update for deletion of globals
        read_md_filename and read_md_lineno.

2016-09-21  Jason Merrill  <jason@redhat.com>

        * input.h (from_macro_definition_at): New.

2016-09-21  Segher Boessenkool  <segher@kernel.crashing.org>

        * doc/rtl.texi (JUMP_LABEL): Document RETURN and SIMPLE_RETURN values.

2016-09-21  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR tree-optimization/77550
        * tree-vect-stmts.c (create_array_ref): Change parameters.
        (get_group_alias_ptr_type): New function.
        (vectorizable_store, vectorizable_load): Use get_group_alias_ptr_type.

2016-09-21  Marek Polacek  <polacek@redhat.com>

        * gimple-ssa-sprintf.c (pass_sprintf_length::compute_format_length):
        Add falls through comment.

2016-09-21  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (remove_child_with_prev): Clear child->die_sib.
        (replace_child): Likewise.
        (remove_child_TAG): Adjust.
        (move_marked_base_types): Likewise.
        (prune_unused_types_prune): Clear die_sib of removed children.

2016-09-21  Georg-Johann Lay  <avr@gjlay.de>

        PR target/77326
        * config/avr/avr.c (avr_notice_update_cc) [CC_NONE]: If insn
        touches some regs mentioned in cc_status, do CC_STATUS_INIT.

2016-09-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77648
        * tree-ssa-structalias.c (process_constraint): Handle all DEREF
        with complex RHS.
        (make_transitive_closure_constraints): Adjust comment.
        (make_any_offset_constraints): New function.
        (handle_rhs_call): Make sure to first expand a pointer to all
        subfields before transitively closing it.
        (handle_const_call): Likewise.  Properly expand returned
        pointers as well.
        (handle_pure_call): Likewise.

2016-09-21  Richard Biener  <rguenther@suse.de>
            Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/77621
        * tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Split
        group at non-vectorizable stmts.

2016-09-21  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR tree-optimization/72835
        * tree-ssa-reassoc.c (make_new_ssa_for_def): New.
        (make_new_ssa_for_all_defs): Likewise.
        (zero_one_operation): Replace all SSA_NAMEs defined in the chain.

2016-09-20  Martin Sebor  <msebor@redhat.com>

        PR middle-end/49905
        * Makefile.in (OBJS): Add gimple-ssa-sprintf.o.
        * config/linux.h (TARGET_PRINTF_POINTER_FORMAT): Redefine.
        * config/linux.c (gnu_libc_printf_pointer_format): New function.
        * config/sol2.h (TARGET_PRINTF_POINTER_FORMAT): Same.
        * config/sol2.c (solaris_printf_pointer_format): New function.
        * doc/invoke.texi (-Wformat-length, -fprintf-return-value): New
        options.
        * doc/tm.texi.in (TARGET_PRINTF_POINTER_FORMAT): Document.
        * doc/tm.texi: Regenerate.
        * gimple-fold.h (get_range_strlen): New function.
        (get_maxval_strlen): Declare existing function.
        * gimple-fold.c (get_range_strlen): Add arguments and compute both
        maximum and minimum.
         (get_range_strlen): Define overload.
        (get_maxval_strlen): Adjust.
        * gimple-ssa-sprintf.c: New file and pass.
        * passes.def (pass_sprintf_length): Add new pass.
        * targhooks.h (default_printf_pointer_format): Declare new function.
        (gnu_libc_printf_pointer_format): Same.
        (solaris_libc_printf_pointer_format): Same.
        * targhooks.c (default_printf_pointer_format): Define new function.
        * tree-pass.h (make_pass_sprintf_length): Declare new function.
        * print-tree.c: Increase buffer size.

2016-09-21  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * tree-vrp.c (get_value_range): Teach PARM_DECL to use ipa-vrp results.

2016-09-21  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * common.opt: New option -fipa-vrp.
        * ipa-cp.c (ipa_get_vr_lat): New.
        (ipcp_vr_lattice::print): Likewise.
        (print_all_lattices): Call ipcp_vr_lattice::print.
        (ipcp_vr_lattice::meet_with): New.
        (ipcp_vr_lattice::meet_with_1): Likewise.
        (ipcp_vr_lattice::top_p): Likewise.
        (ipcp_vr_lattice::bottom_p): Likewsie.
        (ipcp_vr_lattice::set_to_bottom): Likewise.
        (set_all_contains_variable): Call VR set_to_bottom.
        (initialize_node_lattices): Init VR lattices.
        (propagate_vr_accross_jump_function): New.
        (propagate_constants_accross_call): Call
        propagate_vr_accross_jump_function.
        (ipcp_store_vr_results): New.
        (ipcp_driver): Handle VR.
        * ipa-prop.c (ipa_print_node_jump_functions_for_edge): Handle VR.
        (ipa_set_jf_unknown): Likewise.
        (ipa_compute_jump_functions_for_edge): Likewise.
        (ipa_node_params_t::duplicate): Likewise.
        (ipa_write_jump_function): Likewise.
        (ipa_read_jump_function): Likewise.
        (write_ipcp_transformation_info): Likewise.
        (read_ipcp_transformation_info): Likewise.
        (ipcp_update_vr): New.
        (ipcp_transform_function): Handle VR.
        * ipa-prop.h (struct ipa_vr): New.
        * cgraph.c: Include tree-vrp.h.
        * cgraphunit.c: Likewise.
        * ipa-utils.c: Likewise.
        * ipa.c: Likewise.
        * opts.c: Likewise.
        * toplev.c: Likewise.
        * ipa-devirt.c: Likewise.
        * ipa-inline-transform.c: Likewise.
        * ipa-inline.c: Likewise.
        * ipa-profile.c: Likewise.

2016-09-21  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * doc/invoke.texi: Document -fdump-tree-evrp.
        * passes.def: Define new pass_early_vrp.
        * timevar.def: Define new TV_TREE_EARLY_VRP.
        * tree-pass.h (make_pass_early_vrp): New.
        * tree-ssa-propagate.c: Make replace_uses_in non static.
        * tree-ssa-propagate.h: Export replace_uses_in.
        * tree-vrp.c (extract_range_for_var_from_comparison_expr): New.
        (extract_range_from_assert): Factor out
        extract_range_for_var_from_comparison_expr.
        (vrp_initialize_lattice): New.
        (vrp_initialize): Factor out vrp_initialize_lattice.
        (vrp_valueize): Fix it to reject complex value ranges.
        (vrp_free_lattice): New.
        (evrp_dom_walker::before_dom_children): Likewise.
        (evrp_dom_walker::after_dom_children): Likewise.
        (evrp_dom_walker::push_value_range): Likewise.
        (evrp_dom_walker::pop_value_range): Likewise.
        (execute_early_vrp): Likewise.
        (execute_vrp): Call vrp_initialize_lattice and vrp_free_lattice.
        (make_pass_early_vrp): New.

2016-09-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (mult->ashift peephole2s): Use pow2p_hwi
        instead of exact_log2.

2016-09-20  Uros Bizjak  <ubizjak@gmail.com>

        PR target/77621
        * config/i386/i386.c (ix86_preferred_simd_mode) <case DFmode>:
        Don't return word_mode for !TARGET_VECTORIZE_DOUBLE.
        (ix86_add_stmt_cost): Penalize DFmode vector operations
        for !TARGET_VECTORIZE_DOUBLE.

2016-09-20  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/invoke.texi (Warning Options): Simplify language.
        (Optimize Options): Complete sentence.

2016-09-20  David Edelsohn  <dje.gcc@gmail.com>

        * dbxout.c (xcoff_debug_hooks):  Add filename parameter to
        early_finish hook.

2016-09-20  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/71395
        * config/rs6000/rs6000.c (rs6000_expand_vector_init): For V4SF
        inits on power8 and above, use the VMRGEW instruction instead of a
        permute.

        * config/rs6000/altivec.md (UNSPEC_VMRGEW_DIRECT): New unspec.
        (p8_vmrgew_v4sf_direct): New VMRGEW insn for V4SF floating
        initialization.

2016-09-20  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/arm_neon.h
        (vst2_s64, vst2_u64, vst2_f64, vst2_s8): Add missing attributes.
        (vst3_s64, vst3_u64, vst3_f64, vst3_s8): Likewise.
        (vst4_s64, vst4_u64, vst4_f64, vst4_s8): Likewise.

2016-09-20  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * config/var/vax.h (ELIMINABLE_REGS): Define.
        (INITIAL_ELIMINATION_OFFSET): Define.

2016-09-20  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/77624
        * builtins.c (fold_builtin_atomic_always_lock_free): Only look through
        cast to void * if the cast is from some other pointer type.

2016-09-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77646
        * tree-ssa-sccvn.c (visit_reference_op_call): Always value-number
        a VDEF.

2016-09-20  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/arm_neon.h: Add gnu_inline and artificial
        attributes to all inlined functions and make them extern.

2016-09-20  Richard Biener  <rguenther@suse.de>

        * debug.h (gcc_debug_hooks): Add filename parameter to early_finish
        hook.
        * debug.c (do_nothing_debug_hooks): Adjust.
        * dbxout.c (dbx_debug_hooks): Likewise.
        * sdbout.c (sdb_debug_hooks): Likewise.
        * dwarf2out.c (dwarf2_lineno_debug_hooks): Likewise.
        (dwarf2out_finish): Move producer, filename and
        path annotation ...
        (dwarf2out_early_finish): ... here.  Remove in_lto_p special-casing.
        * cgraphunit.c (symbol_table::finalize_compilation_unit): Adjust.

2016-09-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c++/77434
        * doc/invoke.texi: Document -Wint-in-bool-context.

        PR middle-end/77421
        * dwarf2out.c (output_loc_operands): Fix an assertion.

2016-09-19  Joseph Myers  <joseph@codesourcery.com>

        * ginclude/float.h [__STDC_WANT_IEC_60559_BFP_EXT__]
        (CR_DECIMAL_DIG): New macro.

2016-09-19  Joseph Myers  <joseph@codesourcery.com>

        * ginclude/stddef.h (max_align_t) [__i386__]: Add __float128
        element.

2016-09-19  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/77416
        * lra-remat.c (operand_to_remat): Process hard coded insn
        registers.

2016-09-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * simplify-rtx.c (simplify_relational_operation_1): Add transformation
        (GTU (PLUS a C) (C - 1)) --> (LTU a -C).

2016-09-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * target.def (lra_p): Wordsmithing.
        * doc/tm.texi: Regenerate.

2016-09-19  Jakub Jelinek  <jakub@redhat.com>
            Jan Hubicka  <jh@suse.cz>

        PR target/77587
        * cgraph.c (cgraph_node::rtl_info): Pass &avail to
        ultimate_alias_target call, return NULL if avail < AVAIL_AVAILABLE.
        Call ultimate_alias_target just once, not up to 4 times.

2016-09-19  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (early_dwarf_finished): New global.
        (set_early_dwarf::set_early_dwarf): Assert early_dwarf_finished
        is false.
        (dwarf2out_early_finish): Set early_dwarf_finished at the end,
        if called from LTO exit early.
        (dwarf2out_late_global_decl): When being during the early
        debug phase do not add locations but only const value attributes.
        Adjust the way we generate early DIEs for LTO.

2016-09-19  Richard Biener  <rguenther@suse.de>

        PR middle-end/77605
        * tree-data-ref.c (analyze_subscript_affine_affine): Use the
        proper niter to bound the loops.

2016-09-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77514
        * tree-ssa-pre.c (create_expression_by_pieces): Optimize
        search for folded stmt.

2016-09-17  Jan Hubicka  <hubicka@ucw.cz>

        * passes.def (pass_early_thread_jumps): Schedule after forwprop.
        * tree-pass.h (make_pass_early_thread_jumps): Declare.
        * tree-ssa-threadbackward.c (fsm_find_thread_path,
        fsm_find_thread_path, profitable_jump_thread_path,
        fsm_find_control_statement_thread_paths,
        find_jump_threads_backwards): Add speed_p parameter.
        (pass_data_early_thread_jumps): New pass.
        (make_pass_early_thread_jumps): New function.

2016-09-17  Andreas Schwab  <schwab@suse.de>

        * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add cast.
        * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Likewise.

2016-09-16  Eric Botcazou  <ebotcazou@adacore.com>

        * recog.c (rest_of_handle_split_after_reload): Delete.
        (pass_split_after_reload::gate): New method.
        (pass_split_after_reload::execute): Call split_all_insns directly.

2016-09-16  Jonathan Wakely  <jwakely@redhat.com>

        * doc/extend.texi (Integer Overflow Builtins): Fix type of out
        parameters for functions taking long long arguments.

2016-09-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/77613
        * config/rs6000/rs6000.c (rtx_is_swappable_p): Add support for
        splat with truncate.

2016-09-16  Jason Merrill  <jason@redhat.com>

        * hwint.h (least_bit_hwi, pow2_or_zerop, pow2p_hwi, ctz_or_zero):
        New.
        * hwint.c (exact_log2): Use pow2p_hwi.
        (ctz_hwi, ffs_hwi): Use least_bit_hwi.
        * alias.c (memrefs_conflict_p): Use pow2_or_zerop.
        * builtins.c (get_object_alignment_2, get_object_alignment)
        (get_pointer_alignment, fold_builtin_atomic_always_lock_free): Use
        least_bit_hwi.
        * calls.c (compute_argument_addresses, store_one_arg): Use
        least_bit_hwi.
        * cfgexpand.c (expand_one_stack_var_at): Use least_bit_hwi.
        * combine.c (force_to_mode): Use least_bit_hwi.
        (contains_muldiv, find_split_point, combine_simplify_rtx)
        (simplify_if_then_else, simplify_set, force_to_mode)
        (if_then_else_cond, simplify_and_const_int_1)
        (simplify_compare_const): Use pow2p_hwi.
        * cse.c (fold_rtx): Use pow2p_hwi.
        * emit-rtl.c (set_mem_attributes_minus_bitpos, adjust_address_1):
        Use least_bit_hwi.
        * expmed.c (synth_mult, expand_divmod): Use ctz_or_zero, ctz_hwi.
        (init_expmed_one_conv): Use pow2p_hwi.
        * expr.c (is_aligning_offset): Use pow2p_hwi.
        * fold-const.c (round_up_loc, round_down_loc): Use pow2_or_zerop.
        (fold_binary_loc): Use pow2p_hwi.
        * function.c (assign_parm_find_stack_rtl): Use least_bit_hwi.
        * gimple-fold.c (gimple_fold_builtin_memory_op): Use pow2p_hwi.
        * gimple-ssa-strength-reduction.c (replace_ref): Use least_bit_hwi.
        * hsa-gen.c (gen_hsa_addr_with_align, hsa_bitmemref_alignment):
        Use least_bit_hwi.
        * ifcvt.c (noce_try_store_flag_constants): Use pow2p_hwi.
        * ipa-cp.c (ipcp_alignment_lattice::meet_with_1): Use least_bit_hwi.
        * ipa-prop.c (ipa_modify_call_arguments): Use least_bit_hwi.
        * omp-low.c (oacc_loop_fixed_partitions)
        (oacc_loop_auto_partitions): Use least_bit_hwi.
        * rtlanal.c (nonzero_bits1): Use ctz_or_zero.
        * stor-layout.c (place_field): Use least_bit_hwi.
        * tree-pretty-print.c (dump_generic_node): Use pow2p_hwi.
        * tree-sra.c (build_ref_for_offset): Use least_bit_hwi.
        * tree-ssa-ccp.c (ccp_finalize): Use least_bit_hwi.
        * tree-ssa-math-opts.c (bswap_replace): Use least_bit_hwi.
        * tree-ssa-strlen.c (handle_builtin_memcmp): Use pow2p_hwi.
        * tree-vect-data-refs.c (vect_analyze_group_access_1)
        (vect_grouped_store_supported, vect_grouped_load_supported)
        (vect_permute_load_chain, vect_shift_permute_load_chain)
        (vect_transform_grouped_load): Use pow2p_hwi.
        * tree-vect-generic.c (expand_vector_divmod): Use ctz_or_zero.
        * tree-vect-patterns.c (vect_recog_divmod_pattern): Use ctz_or_zero.
        * tree-vect-stmts.c (vectorizable_mask_load_store): Use
        least_bit_hwi.
        * tsan.c (instrument_expr): Use least_bit_hwi.
        * var-tracking.c (negative_power_of_two_p): Use pow2_or_zerop.

2016-09-16  Andreas Schwab  <schwab@suse.de>

        * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Use parameter
        OFFSET, not offset.
        * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Likewise.

2016-09-16  Jakub Jelinek  <jakub@redhat.com>

        PR target/77526
        * combine.c (rest_of_handle_combine): If any edges have been purged,
        free dominators if available.

2016-09-16  Jakub Jelinek  <jakub@redhat.com>
            Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/77594
        * internal-fn.c (expand_arith_overflow) <case MINUS_EXPR>: Don't fall
        through into expand_addsub_overflow after expand_neg_overflow.

2016-09-15  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c
        (selftest::test_fixit_insert_containing_newline): New function.
        (selftest::test_fixit_replace_containing_newline): New function.
        (selftest::diagnostic_show_locus_c_tests): Call the above.

2016-09-15  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/77503
        * tree-vect-loop.c (vectorizable_reduction): Record reduction
        code for CONST_COND_REDUCTION at analysis stage and use it at
        transform stage.
        * tree-vectorizer.h (struct _stmt_vec_info): New field.
        (STMT_VINFO_VEC_CONST_COND_REDUC_CODE): New macro.
        * tree-vect-stmts.c (new_stmt_vec_info): Initialize above new
        field.

2016-09-15  Richard Biener  <rguenther@suse.de>

        PR middle-end/77544
        * fold-const.c (split_tree): Do not split constant ~X.

2016-09-15  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/77425
        * sched-int.h (sd_iterator_cond): Don't update it_ptr->linkp if list
        is NULL.

        PR middle-end/77475
        * config/i386/i386.c (ix86_parse_stringop_strategy_string): Simplify,
        use %qs instead of %s where desirable, use argument instead of arg in
        the diagnostic wording, add list of supported strategies and
        spellcheck hint.
        (ix86_option_override_internal): Emit target("m...") instead of
        option("m...") in the diagnostic.  Use %qs instead of %s in invalid
        -march/-mtune option diagnostic.  Add list of supported arches/tunings
        and spellcheck hint.  Remove prefix, suffix and sw variables, use
        main_args_p ? "..." : "..." in diagnostics to make translation
        possible.

2016-09-15  Richard Biener  <rguenther@suse.de>

        * dwarf2asm.h (dw2_asm_output_offset): Add overload with
        extra offset argument.
        * dwarf2asm.c (dw2_asm_output_offset): Implement that.
        * doc/tm.texi.in (ASM_OUTPUT_DWARF_OFFSET): Adjust documentation
        to reflect new offset parameter.
        * doc/tm.texi: Regenerate.
        * config/darwin.h (ASM_OUTPUT_DWARF_OFFSET): Adjust.
        * config/darwin-protos.h (darwin_asm_output_dwarf_delta): Add
        offset argument.
        (darwin_asm_output_dwarf_offset): Likewise.
        * config/darwin.c (darwin_asm_output_dwarf_delta): Add offset
        argument.
        (darwin_asm_output_dwarf_offset): Pass offset argument through.
        * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Adjust.
        * config/i386/cygmin.h (ASM_OUTPUT_DWARF_OFFSET): Likewise.

2016-09-15  Chung-Lin Tang  <cltang@codesourcery.com>

        PR fortran/72743
        * ipa-icf.c (set_alias_uids): New function.
        (sem_variable::merge): Use set_alias_uids to set DECL_PT_UID of
        all the merged variable's referring aliases.

2016-09-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77514
        * tree-ssa-pre.c (create_expression_by_pieces): Handle garbage
        only forced_stmts sequence.

2016-09-15  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * tree-ssanames.h (FOR_EACH_SSA_NAME): New.
        * cfgexpand.c (update_alias_info_with_stack_vars): Use
        FOR_EACH_SSA_NAME to iterate over SSA variables.
        (pass_expand::execute): Likewise.
        * omp-simd-clone.c (ipa_simd_modify_function_body): Likewise.
        * tree-cfg.c (dump_function_to_file): Likewise.
        * tree-into-ssa.c (pass_build_ssa::execute): Likewise.
        (update_ssa): Likewise.
        * tree-ssa-alias.c (dump_alias_info): Likewise.
        * tree-ssa-ccp.c (ccp_finalize): Likewise.
        * tree-ssa-coalesce.c (build_ssa_conflict_graph): Likewise.
        (create_outofssa_var_map): Likewise.
        (coalesce_ssa_name): Likewise.
        * tree-ssa-operands.c (dump_immediate_uses): Likewise.
        * tree-ssa-pre.c (compute_avail): Likewise.
        * tree-ssa-sccvn.c (init_scc_vn): Likewise.
        (scc_vn_restore_ssa_info): Likewise.
        (free_scc_vn): Likwise.
        (run_scc_vn): Likewise.
        * tree-ssa-structalias.c (compute_points_to_sets): Likewise.
        * tree-ssa-ter.c (new_temp_expr_table): Likewise.
        * tree-ssa-copy.c (fini_copy_prop): Likewise.
        * tree-ssa.c (verify_ssa): Likewise.

2016-09-14  Matthew Fortune  <matthew.fortune@imgtec.com>

        * config.gcc (mips*-mti-elf*, mips*-mti-linux*): Set mips32r2
        and mips64r2 as default 32-bit and 64-bit architectures.
        (mips*-img-elf*, mips*-img-linux*): Set mips32r6 and mips64r6
        as default 32-bit and 64-bit architectures.

2016-09-14  Pat Haugen  <pthaugen@us.ibm.com>

        * loop-unroll.c (unroll_loop_runtime_iterations): Set probability
        of succ edge.

2016-09-14  Segher Boessenkool  <segher@kernel.crashing.org>

        * target.def (lra_p): Change commentary (for the manual) for the
        new default.
        * doc/tm.texi: Regenerate.

2016-09-14  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/aarch64/aarch64.c (TARGET_LRA_P): Delete macro.
        * config/arm/arm.c (TARGET_LRA_P): Delete macro.
        * config/i386/i386.c (TARGET_LRA_P): Delete macro.
        * config/nds32/nds32.c (TARGET_LRA_P): Delete macro.

2016-09-14  Segher Boessenkool  <segher@kernel.crashing.org>

        * targhooks.c (default_lra_p): Return true instead of false.

2016-09-14  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/alpha/alpha.c (TARGET_LRA_P): New macro, defined to
        hook_bool_void_false.
        * config/avr/avr.c: Ditto.
        * config/bfin/bfin.c: Ditto.
        * config/c6x/c6x.c: Ditto.
        * config/cr16/cr16.c: Ditto.
        * config/cris/cris.c: Ditto.
        * config/epiphany/epiphany.c: Ditto.
        * config/fr30/fr30.c: Ditto.
        * config/frv/frv.c: Ditto.
        * config/h8300/h8300.c: Ditto.
        * config/ia64/ia64.c: Ditto.
        * config/iq2000/iq2000.c: Ditto.
        * config/lm32/lm32.c: Ditto.
        * config/m32c/m32c.c: Ditto.
        * config/m32r/m32r.c: Ditto.
        * config/m68k/m68k.c: Ditto.
        * config/mcore/mcore.c: Ditto.
        * config/microblaze/microblaze.c: Ditto.
        * config/mmix/mmix.c: Ditto.
        * config/mn10300/mn10300.c: Ditto.
        * config/moxie/moxie.c: Ditto.
        * config/msp430/msp430.c: Ditto.
        * config/nios2/nios2.c: Ditto.
        * config/nvptx/nvptx.c: Ditto.
        * config/pa/pa.c: Ditto.
        * config/pdp11/pdp11.c: Ditto.
        * config/rl78/rl78.c: Ditto.
        * config/sparc/sparc.c: Ditto.
        * config/spu/spu.c: Ditto.
        * config/stormy16/stormy16.c: Ditto.
        * config/tilegx/tilegx.c: Ditto.
        * config/tilepro/tilepro.c: Ditto.
        * config/v850/v850.c: Ditto.
        * config/vax/vax.c: Ditto.
        * config/visium/visium.c: Ditto.
        * config/xtensa/xtensa.c: Ditto.

2016-09-14  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/68260
        * tsan.c: Include target.h.
        (enum tsan_atomic_action): Add bool_clear and bool_test_and_set.
        (BOOL_CLEAR, BOOL_TEST_AND_SET): Define.
        (tsan_atomic_table): Add BUILT_IN_ATOMIC_CLEAR and
        BUILT_IN_ATOMIC_TEST_AND_SET entries.
        (instrument_builtin_call): Handle bool_clear and bool_test_and_set.

2016-09-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>
            Martin Liska  <mliska@suse.cz>

        PR middle-end/77574
        * predict.c (force_edge_cold): Add braces to a condition.

2016-09-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR rtl-optimization/77289
        * lra-constraints.c (get_final_hard_regno): Removed.
        (get_hard_regno): Add new parameter final_p.
        (get_reg_class): Directly call lra_get_elimination_hard_regno.
        (operands_match_p): Adjust call to get_hard_regno.
        (uses_hard_regs_p): Likewise.
        (process_alt_operands): Likewise.

2016-09-13  Joe Seymour  <joe.s@somniumtech.com>

        PR target/70713
        * config/msp430/msp430.c (msp430_start_function): Emit an error
        if a function is both weak and specifies an interrupt number.

2016-09-13  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/77454
        * tree-ssa-dom.c (optimize_stmt): Set modified flag on stmt after
        changing GIMPLE_COND.  Move update_stmt_if_modified call after this.
        Formatting fix.

2016-09-13  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-builtins.c
        (aarch64_init_simd_builtins): Fix builtin type signature printing.

2016-09-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (alpha_pass_by_reference): Pass un-named
        SFmode and SCmode arguments by reference.

2016-09-13  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c (selftest::test_one_liner_fixit_insert):
        Rename to...
        (selftest::test_one_liner_fixit_insert_before): ...this, and update
        for renaming of add_fixit_insert to add_fixit_insert_before.
        (selftest::test_one_liner_fixit_insert_after): New function.
        (selftest::test_one_liner_fixit_validation_adhoc_locations):
        Update for renaming of add_fixit_insert to add_fixit_insert_before.
        (selftest::test_one_liner_many_fixits): Likewise.
        (selftest::test_diagnostic_show_locus_one_liner): Update for
        renaming, call new test function.
        (selftest::test_diagnostic_show_locus_fixit_lines): Update for
        renaming of add_fixit_insert to add_fixit_insert_before.
        (selftest::test_fixit_consolidation): Likewise.
        * diagnostic.c (selftest::test_print_parseable_fixits_insert):
        Likewise.
        * edit-context.c (selftest::test_applying_fixits_insert): Rename to...
        (selftest::test_applying_fixits_insert_before): ...this.
        (selftest::test_applying_fixits_insert): Update for renaming of
        add_fixit_insert to add_fixit_insert_before.
        (selftest::test_applying_fixits_insert_after): New function.
        (selftest::test_applying_fixits_insert_after_at_line_end): New
        function.
        (selftest::test_applying_fixits_insert_after_failure): New function.
        (selftest::test_applying_fixits_multiple): Update for renaming of
        add_fixit_insert to add_fixit_insert_before.
        (selftest::change_line): Likewise.
        (selftest::test_applying_fixits_unreadable_file): Likewise.
        (selftest::test_applying_fixits_line_out_of_range): Likewise.
        (selftest::test_applying_fixits_column_validation): Likewise.
        (selftest::test_applying_fixits_column_validation): Likewise.
        (selftest::edit_context_c_tests): Update for renamed test function;
        call new test functions.

2016-09-13  Pat Haugen  <pthaugen@us.ibm.com>

        PR tree-optimization/77536
        PR rtl-optimization/68212
        * config/rs6000/rs6000.md (div->recip splitter): Remove
        optimize_insn_for_speed_p condition.

2016-09-13  Maciej W. Rozycki  <macro@imgtec.com>

        * optabs.c (prepare_cmp_insn): Update documentation comment.

2016-09-13  Jakub Jelinek  <jakub@redhat.com>
            Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/77475
        * opts.h (candidates_list_and_hint): Declare.
        * opts-common.c (candidates_list_and_hint): New function.
        (cmdline_handle_error): Use it.

2016-09-12  David Malcolm  <dmalcolm@redhat.com>

        * edit-context.c (edited_line::get_len): New accessor.
        (edited_file::print_diff): Split out hunk-printing into...
        (edited_file::print_diff_hunk): New method.
        (edited_file::print_diff_line): New method.

2016-09-12  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-tuning-flags.def (SLOW_UNALIGNED_LDPW):
        New tuning option.
        * config/aarch64/aarch64.c (thunderx_tunings): Enable
        AARCH64_EXTRA_TUNE_SLOW_UNALIGNED_LDPW.
        (aarch64_operands_ok_for_ldpstp): Return false if
        AARCH64_EXTRA_TUNE_SLOW_UNALIGNED_LDPW and the mode
        was SImode and the alignment is less than 8 byte.
        (aarch64_operands_adjust_ok_for_ldpstp): Likewise.

2016-09-12  Orlando Arias  <oarias@knights.ucf.edu>

        PR target/77570
        * config/msp430/msp430.md (delay_cycles_32x): Fix pushm/popm.

2016-09-12  Marek Polacek  <polacek@redhat.com>

        * doc/extend.texi: Use lowercase "boolean".
        * doc/invoke.texi: Likewise.
        * doc/md.texi: Likewise.
        * target.def: Likewise.
        * doc/tm.texi: Regenerated.

2016-09-12  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR middle-end/77426
        * expmed.c (synth_mult): Delete duplicate mode check.

2016-09-10  Tom de Vries  <tom@codesourcery.com>

        PR C/71602
        * builtins.c (std_canonical_va_list_type): Strictly return non-null for
        va_list type only.
        * config/i386/i386.c (ix86_canonical_va_list_type): Same.
        * gimplify.c (gimplify_va_arg_expr): Handle &va_list.

2016-09-09  Peter Bergner  <bergner@vnet.ibm.com>

        PR rtl-optimization/77289
        * lra-constraints.c (get_final_hard_regno): Add support for non hard
        register numbers.  Remove support for subregs.
        (get_hard_regno): Use SUBREG_P.  Don't call get_final_hard_regno().
        (get_reg_class): Delete removed get_final_hard_regno() argument.
        (uses_hard_regs_p): Call get_final_hard_regno().

2016-09-09  Martin Sebor  <msebor@redhat.com>

        PR c/77520
        PR c/77521
        * pretty-print.c (pp_quoted_string): New function.
        (pp_format): Call it for %c and %s directives.

2016-09-10  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/tm.texi.in (INITIAL_FRAME_POINTER_OFFSET): Remove.
        (ELIMINABLE_REGS, TARGET_CAN_ELIMINATE,
        INITIAL_ELIMINATION_OFFSET) : Update documentation.
        * target.def (frame_pointer_required, can_eliminate): Likewise.
        * doc/tm.texi: Regenerated.
        * builtins.c (expand_builtin_setjmp_receiver): Remove #ifdef
        ELIMINABLE_REGS.
        * df-scan.c (df_hard_reg_init): Likewise.
        * ira.c (ira_setup_eliminable_regset): Likewise.
        * lra-eliminations.c (reg_eliminate_1, (update_reg_eliminate,
        init_elim_table): Likewise.
        * reload1.c (reg_eliminate_1, verify_initial_elim_offsets,
        set_initial_elim_offsets, update_eliminables,
        init_elim_table): Likewise.
        * rtlanal.c (get_initial_register_offset): Likewise.
        * config/ft32/ft32.h (INITIAL_FRAME_POINTER_OFFSET): Remove.
        * config/m32r/m32r.h (INITIAL_FRAME_POINTER_OFFSET): Likewise.
        * config/moxie/moxie.h (INITIAL_FRAME_POINTER_OFFSET): Likewise.
        * config/vax/vax.h (INITIAL_FRAME_POINTER_OFFSET): Likewise.
        * config/fr30/fr30.h: Fix comment.
        * config/frv/frv.c: Likewise.
        * config/frv/frv.h: Likewise.
        * config/ft32/ft32.h: Likewise.
        * config/visium/visium.h: Likewise.
        * config/pa/pa64-linux.h: Likewise.
        * config/v850/v850.h: Likewise.
        * config/cris/cris.c: Likewise.
        * config/ia64/ia64.h: Likewise.
        * config/moxie/moxie.h: Likewise.
        * config/m32r/m32r.h: Likewise.

2016-09-10  Alexander Ivchenko  <alexander.ivchenko@intel.com>

        PR target/77267
        * config.in: Regenerate.
        * config/i386/linux-common.h (MPX_LD_AS_NEEDED_GUARD_PUSH):
        New macro.
        (MPX_LD_AS_NEEDED_GUARD_PUSH): Ditto.
        (LIBMPXWRAPPERS_SPEC): Remove "--no-whole-archive" from
        static-libmpxwrappers case.
        (LIBMPX_SPEC): Add guards with MPX_LD_AS_NEEDED_GUARD_PUSH and
        MPX_LD_AS_NEEDED_GUARD_POP.
        * configure: Regenerate.
        * configure.ac (HAVE_LD_PUSHPOPSTATE_SUPPORT): New variable.
        defined if linker support "--push-state"/"--pop-state".

2016-09-09  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/cpp.texi (__*_WIDTH__): Small wording fixes.

2016-09-09  Joseph Myers  <joseph@codesourcery.com>

        * doc/cpp.texi (__SCHAR_WIDTH__, __SHRT_WIDTH__, __INT_WIDTH__)
        (__LONG_WIDTH__, __LONG_LONG_WIDTH__, __PTRDIFF_WIDTH__)
        (__SIG_ATOMIC_WIDTH__, __SIZE_WIDTH__, __WCHAR_WIDTH__)
        (__WINT_WIDTH__, __INT_LEAST8_WIDTH__, __INT_LEAST16_WIDTH__)
        (__INT_LEAST32_WIDTH__, __INT_LEAST64_WIDTH__)
        (__INT_FAST8_WIDTH__, __INT_FAST16_WIDTH__, __INT_FAST32_WIDTH__)
        (__INT_FAST64_WIDTH__, __INTPTR_WIDTH__, __INTMAX_WIDTH__):
        Document.
        * ginclude/stdint-gcc.h [__STDC_WANT_IEC_60559_BFP_EXT__]: Define
        width macros from TS 18661-1.
        * glimits.h [__STDC_WANT_IEC_60559_BFP_EXT__]: Likewise.

2016-09-08  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/77516
        * omp-low.c (lower_rec_simd_input_clauses): Use max_vf for non-positive
        OMP_CLAUSE_SAFELEN_EXPR.

2016-09-07  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (OBJS): Add substring-locations.o.
        * langhooks-def.h (class substring_loc): New forward decl.
        (lhd_get_substring_location): New decl.
        (LANG_HOOKS_GET_SUBSTRING_LOCATION): New macro.
        (LANG_HOOKS_INITIALIZER): Add LANG_HOOKS_GET_SUBSTRING_LOCATION.
        * langhooks.c (lhd_get_substring_location): New function.
        * langhooks.h (class substring_loc): New forward decl.
        (struct lang_hooks): Add field get_substring_location.
        * substring-locations.c: New file, taking definition of
        format_warning_va and format_warning_at_substring from
        c-family/c-format.c, making them non-static.
        * substring-locations.h (class substring_loc): Move class here
        from c-family/c-common.h.  Add and rewrite comments.
        (format_warning_va): New decl.
        (format_warning_at_substring): New decl.
        (get_source_location_for_substring): Add comment.

2016-09-07  Eric Gallager  <egall@gwmail.gwu.edu>

        * config/i386/i386.c: Add 'U' suffix to processor feature bits
        to avoid -Wnarrowing warning.
        * config/i386/x86-tune.def: Likewise for DEF_TUNE selector bitmasks.
        * opts.c: Likewise for SANITIZER_OPT bitmasks.

2016-09-07  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_legitimize_address):
        Avoid use of base_offset if offset already in range.

2016-09-07  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh-protos.h (struct sh_atomic_model,
        selected_atomic_model, TARGET_ATOMIC_ANY, TARGET_ATOMIC_STRICT,
        TARGET_ATOMIC_SOFT_GUSA, TARGET_ATOMIC_HARD_LLCS,
        TARGET_ATOMIC_SOFT_TCB, TARGET_ATOMIC_SOFT_IMASK): Move to...
        * config/sh/sh.h (struct sh_atomic_model,
        selected_atomic_model, TARGET_ATOMIC_ANY, TARGET_ATOMIC_STRICT,
        TARGET_ATOMIC_SOFT_GUSA, TARGET_ATOMIC_HARD_LLCS,
        TARGET_ATOMIC_SOFT_TCB, TARGET_ATOMIC_SOFT_IMASK): ...here.
        Guard with __cplusplus.

2016-09-06  Jakub Jelinek  <jakub@redhat.com>

        PR target/69255
        * config/i386/i386.c (ix86_expand_builtin): For builtin with
        unsupported or unknown ISA, use expand_call.

2016-09-06  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/77378
        PR gcov-profile/77466
        * tree-profile.c (tree_profiling): Detect whether target can use
        -fprofile-update=atomic.

2016-09-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77479
        * tree-vrp.c (update_value_range): Extend overflow handling to
        VARYING.

2016-09-05  Jakub Jelinek  <jakub@redhat.com>

        PR target/77476
        * config/i386/i386.md (isa): Add x64_avx512bw.
        (*zero_extendsidi2): For alternative 11 use x64_avx512bw isa.
        (kmov_isa): New mode attr.
        (zero_extend<mode>di2): Use <kmov_isa> isa for the last alternative.
        (*zero_extend<mode>si2): Likewise.
        (*zero_extendqihi2): Use avx512dq isa for the last alternative.

2016-09-05  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/invoke.texi (SPU Options): nops -> NOPs.
        (x86 Options): Ditto.

2016-09-05  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/77475
        * toplev.c (process_options): Temporarily set input_location
        to UNKNOWN_LOCATION around targetm.target_option.override () call.

2016-09-05  Uros Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/77452
        * explow.c (plus_constant) <case MEM>: Extract scalar constant from
        inner-mode reference to a CONST_VECTOR constant in the constant pool.

2016-09-05  Marek Polacek  <polacek@redhat.com>

        PR c/77423
        * doc/invoke.texi: Update -Wlogical-not-parentheses documentation.

2016-09-05  Jakub Jelinek  <jakub@redhat.com>

        PR other/77421
        * gensupport.c (alter_output_for_subst_insn): Remove redundant
        *insn_out == '*' test.  Don't copy unnecessary to yet another
        memory buffer, and don't leak it.

        PR rtl-optimization/77425
        * ipa-devirt.c (get_odr_type): Set val->id unconditionally.

2016-09-03  Kirill Yukhin  <kirill.yukhin@intel.com>

        * ubsan.c (ubsan_use_new_style_p): Fix check for empty string.

2016-09-02  David Malcolm  <dmalcolm@redhat.com>

        * common.opt (fdiagnostics-generate-patch): New option.
        * diagnostic.c: Include "edit-context.h".
        (diagnostic_initialize): Initialize context->edit_context_ptr.
        (diagnostic_finish): Delete context->edit_context_ptr.
        (diagnostic_report_diagnostic): Add fix-it hints from the
        diagnostic to context->edit_context_ptr, if any.
        * diagnostic.h (class edit_context): Add forward decl.
        (struct diagnostic_context): Add field "edit_context_ptr".
        * doc/invoke.texi (Diagnostic Message Formatting Options): Add
        -fdiagnostics-generate-patch.
        (-fdiagnostics-generate-patch): New item.
        * toplev.c: Include "edit-context.h".
        (process_options): Set global_dc->edit_context_ptr to a new
        edit_context if the options need one.
        (toplev::main): Handle -fdiagnostics-generate-patch by using
        global_dc->edit_context_ptr.

2016-09-02  Jakub Jelinek  <jakub@redhat.com>

        PR c/65467
        * gimplify.c (gimplify_adjust_omp_clauses_1): Diagnose implicit
        map and firstprivate clauses on target construct for _Atomic
        qualified decls.
        (gimplify_adjust_omp_clauses): Diagnose explicit firstprivate clauses
        on target construct for _Atomic qualified decls.
        * omp-low.c (use_pointer_for_field): Return true for _Atomic qualified
        decls.
        * omp-simd-clone.c (simd_clone_clauses_extract): Warn and give up for
        _Atomic qualified arguments not mentioned in uniform clause.

2016-09-02  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (OBJS-libcommon): Add edit-context.o.
        * diagnostic-color.c (color_dict): Add "diff-filename",
        "diff-hunk", "diff-delete", and "diff-insert".
        (parse_gcc_colors): Update default value of GCC_COLORS in comment
        to reflect above changes.
        * doc/invoke.texi (-fdiagnostics-color): Update description of
        default GCC_COLORS, and of the supported capabilities.
        * edit-context.c: New file.
        * edit-context.h: New file.
        * input.c (struct fcache): Add field "missing_trailing_newline".
        (diagnostics_file_cache_forcibly_evict_file): Initialize it to
        true.
        (add_file_to_cache_tab): Likewise.
        (fcache::fcache): Likewise.
        (get_next_line): Update c->missing_trailing_newline.
        (location_missing_trailing_newline): New function.
        * input.h (location_missing_trailing_newline): New decl.
        * selftest-run-tests.c (selftest::run_tests): Call
        edit_context_c_tests.
        * selftest.h (edit_context_c_tests): New decl.

2016-09-02  Jakub Jelinek  <jakub@redhat.com>
            Richard Biener  <rguenth@suse.de>

        PR tree-optimization/77444
        * tree-ssa-loop-ivopts.c (cand_value_at): For pointers use sizetype
        as steptype, remove redundant initialization.

2016-09-02  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/77396
        * sanopt.c: Include gimple-ssa.h, tree-phinodes.h and ssa-iterators.h.
        (sanopt_optimize_walker): Optimize away
        __asan_before_dynamic_init (...) followed by
        __asan_after_dynamic_init () without intervening memory loads/stores.
        * ipa-pure-const.c (special_builtin_state): Handle
        BUILT_IN_ASAN_BEFORE_DYNAMIC_INIT and
        BUILT_IN_ASAN_AFTER_DYNAMIC_INIT.

2016-09-02  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * cfg.c (free_original_copy_tables): Replace second assignment of
        bb_copy = NULL by bb_original = NULL.

2016-09-02  Jakub Jelinek  <jakub@redhat.com>

        PR other/77421
        * config/i386/i386.c (ix86_expanded_args_builtin): Remove redundant
        assignment added in r216794.

2016-09-02  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (OBJS): Add typed-splay-tree.o.
        * selftest-run-tests.c (selftest::run_tests): Call
        typed_splay_tree_c_tests.
        * selftest.h (typed_splay_tree_c_tests): New decl.
        * typed-splay-tree.c: New file.
        * typed-splay-tree.h (typed_splay_tree::foreach_fn): New typedef.
        (typed_splay_tree::max): New method.
        (typed_splay_tree::min): New method.
        (typed_splay_tree::foreach): New method.
        (typed_splay_tree::closure): New struct.
        (typed_splay_tree::inner_foreach_fn): New function.

2016-09-02  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * ipa-cp.c (ipcp_store_bits_results): Change option name from
        -fipa-cp-bit to -fipa-bit-cp.

2016-09-01  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/71831
        * tree-object-size.h: Return bool instead of the size and add
        argument for the size.
        * tree-object-size.c (compute_object_offset): Update signature.
        (addr_object_size): Same.
        (compute_builtin_object_size): Return bool instead of the size
        and add argument for the size.  Handle POINTER_PLUS_EXPR when
        optimization is disabled.
        (expr_object_size): Adjust.
        (plus_stmt_object_size): Adjust.
        (pass_object_sizes::execute): Adjust.
        * builtins.c (fold_builtin_object_size): Adjust.
        * doc/extend.texi (Object Size Checking): Update.
        * ubsan.c (instrument_object_size): Adjust.

2016-09-01  Martin Sebor  <msebor@redhat.com>

        * genmatch.c (parser::parse_expr): Increase buffer size to guarantee
        it fits the output of the formatted function regardless of its
        arguments.
        * genmodes.c (parser::parse_expr): Same.
        * gimplify.c (gimplify_asm_expr): Same.
        * passes.c (pass_manager::register_one_dump_file): Same.
        * print-tree.c (print_node): Same.

2016-09-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/altivec.md: Use VSCR_REGNO instead of 110 throughout.

2016-09-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/altivec.md: Use VRSAVE_REGNO instead of 109 throughout.

2016-09-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/altivec.md: Use CR6_REGNO instead of 74 throughout.
        * config/rs6000/vector.md: Ditto.
        * config/rs6000/vsx.md: Ditto.

2016-09-01  Eric Botcazou  <ebotcazou@adacore.com>

        * ipa-inline-analysis.c (param_change_prob): Get to the base object
        first in all cases.

2016-09-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (*restore_gpregs_<mode>_r11,
        *restore_gpregs_<mode>_r12, *restore_gpregs_<mode>_r1,
        *return_and_restore_gpregs_<mode>_r11,
        *return_and_restore_gpregs_<mode>_r12,
        *return_and_restore_gpregs_<mode>_r1,
        *return_and_restore_fpregs_<mode>_r11,
        *return_and_restore_fpregs_<mode>_r12,
        *return_and_restore_fpregs_<mode>_r1): Use the hard register LR_REGNO
        directly instead of via the "l" constraint.  Renumber operands.
        Fix whitespace.

2016-09-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/altivec.md (*save_world, *save_vregs_<mode>_r11,
        save_vregs_<mode>_r12, *restore_vregs_<mode>_r11,
        *restore_vregs_<mode>_r12): Use LR_REGNO instead of 65.
        * config/rs6000/darwin.md (load_macho_picbase, load_macho_picbase_si,
        load_macho_picbase_di, *call_indirect_nonlocal_darwin64,
        *call_nonlocal_darwin64, *call_value_indirect_nonlocal_darwin64,
        *call_value_nonlocal_darwin64, reload_macho_picbase,
        reload_macho_picbase_si, reload_macho_picbase_di): Ditto.
        * config/rs6000/rs6000.h (RETURN_ADDR_IN_PREVIOUS_FRAME): Ditto.
        * config/rs6000/rs6000.md (*save_gpregs_<mode>_r11,
        *save_gpregs_<mode>_r12, *save_gpregs_<mode>_r1,
        *save_fpregs_<mode>_r11, *save_fpregs_<mode>_r12,
        *save_fpregs_<mode>_r1): Ditto.
        * config/rs6000/spe.md (*save_gpregs_spe, *restore_gpregs_spe,
        *return_and_restore_gpregs_spe): Ditto.

2016-09-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md
        (define_insn "*return_and_restore_fpregs_aix_<mode>_r11"): Delete
        the use of the link register.
        (define_insn "*return_and_restore_fpregs_aix_<mode>_r1"): Ditto.

2016-09-01  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
            Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/72827
        * config/rs6000/rs6000.c (rs6000_legitimize_address): Avoid
        reg+reg addressing for TImode.
        (rs6000_legitimate_address_p): Only allow register indirect
        addressing for TImode, even without TARGET_QUAD_MEMORY.

2016-09-01  Richard Biener  <rguenther@suse.de>

        PR middle-end/77436
        * tree-chrec.c (tree_fold_binomial): Use widest_int, properly
        check whether the result fits the desired result type.

2016-09-01  Nathan Sidwell  <nathan@acm.org>

        * config/nvptx/nvptx.md (cbranch<mode>4): Op 2 can be const.

2016-09-01  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_legitimize_address_displacement):
        New function.
        (TARGET_LEGITIMIZE_ADDRESS_DISPLACEMENT): Define.

2016-09-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.md (*ands<mode>_compare0): New pattern.
        * config/aarch64/aarch64.c (aarch64_select_cc_mode): Return CC_NZmode
        for comparisons of integer ZERO_EXTEND against zero.

2016-09-01  Eric Botcazou  <ebotcazou@adacore.com>

        * config/i386/i386.c (ix86_option_override_internal): Also disable the
        STV pass if -mstackrealign is enabled.

2016-08-31  Ilya Verbin  <iverbin@gmail.com>

        * config/i386/driver-i386.c (host_detect_local_cpu): Fix detection of
        AVX512IFMA.

2016-08-31  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c (class layout): Add field m_fixit_hints.
        (layout_range::intersects_line_p): New method.
        (test_range_contains_point_for_single_point): Rename to...
        (test_layout_range_for_single_point): ...this, and add testing
        for layout_range::intersects_line_p.
        (test_range_contains_point_for_single_line): Rename to...
        (test_layout_range_for_single_line): ...this,  and add testing
        for layout_range::intersects_line_p.
        (test_range_contains_point_for_multiple_lines): Rename to...
        (test_layout_range_for_multiple_lines): ...this,  and add testing
        for layout_range::intersects_line_p.
        (layout::layout): Populate m_fixit_hints.
        (layout::get_expanded_location): Handle the case of a line-span
        for a fix-it hint.
        (layout::validate_fixit_hint_p): New method.
        (get_line_span_for_fixit_hint): New function.
        (layout::calculate_line_spans): Add spans for fixit-hints.
        (layout::should_print_annotation_line_p): New method.
        (layout::print_any_fixits): Drop param "richloc", instead using
        validated fixits in m_fixit_hints.  Add "const" to hint pointers.
        (diagnostic_show_locus): Avoid printing blank annotation lines.
        (selftest::test_diagnostic_context::test_diagnostic_context):
        Initialize show_column and start_span.
        (selftest::test_diagnostic_context::start_span_cb): New static
        function.
        (selftest::test_diagnostic_show_locus_fixit_lines): New function.
        (selftest::diagnostic_show_locus_c_tests): Update for function
        renamings.  Call test_diagnostic_show_locus_fixit_lines.

2016-08-31  Marc Glisse  <marc.glisse@inria.fr>

        PR tree-optimization/73714
        * match.pd (a * (1 << b)): Revert change from 2016-05-23.

2016-08-31  David Malcolm  <dmalcolm@redhat.com>

        * selftest.c: Move "namespace selftest {" to top of file,
        removing explicit "selftest::" qualifiers throughout.

2016-08-31  Marc Glisse  <marc.glisse@inria.fr>

        * config/i386/avx512fintrin.h (__m512_u, __m512i_u, __m512d_u):
        New types.
        (_mm512_loadu_pd, _mm512_storeu_pd, _mm512_loadu_ps,
        _mm512_storeu_ps, _mm512_loadu_si512, _mm512_storeu_si512):
        Replace builtin with vector extension.
        * config/i386/avxintrin.h (__m256_u, __m256i_u, __m256d_u):
        New types.
        (_mm256_loadu_pd, _mm256_storeu_pd, _mm256_loadu_ps,
        _mm256_storeu_ps, _mm256_loadu_si256, _mm256_storeu_si256):
        Replace builtin with vector extension.
        * config/i386/emmintrin.h (__m128i_u, __m128d_u): New types.
        (_mm_loadu_pd, _mm_storeu_pd, _mm_loadu_si128, _mm_storeu_si128):
        Replace builtin with vector extension.
        * config/i386/xmmintrin.h (__m128_u): New type.
        (_mm_loadu_ps, _mm_storeu_ps): Replace builtin with vector extension.
        (_mm_load_ps, _mm_store_ps): Simplify.

2016-08-31  Eric Botcazou  <ebotcazou@adacore.com>

        * config/arm/arm.c (thumb1_size_rtx_costs) <SET>: Add missing guard.

2016-08-30  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c (colorizer::begin_state): Support more
        than 3 ranges per diagnostic by alternating between color 1 and
        color 2.
        (layout::layout): Replace use of rich_location::MAX_RANGES
        with richloc->get_num_locations ().
        (layout::calculate_line_spans): Replace use of
        rich_location::MAX_RANGES with m_layout_ranges.length ().
        (layout::print_annotation_line): Handle arbitrary numbers of
        ranges in caret-printing by defaulting to '^'.
        (selftest::test_one_liner_many_fixits): New function.
        (test_diagnostic_show_locus_one_liner): Call it.
        * diagnostic.c (diagnostic_initialize): Update for renaming
        of rich_location::MAX_RANGES to
        rich_location::STATICALLY_ALLOCATED_RANGES.
        * diagnostic.h (struct diagnostic_context): Likewise.

2016-08-30  David Malcolm  <dmalcolm@redhat.com>

        * selftest.c (selftest::named_temp_file::named_temp_file): New
        ctor.
        (selftest::temp_source_file::~temp_source_file): Move to...
        (selftest::named_temp_file::~named_temp_file): ...here.
        (selftest::test_named_temp_file): New function.
        (selftest::selftest_c_tests): Call test_named_temp_file.
        * selftest.h (class named_temp_file): New class.
        (class temp_source_file): Convert to a subclass of named_temp_file.

2016-08-30  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_emit_epilogue): Do not emit
        USEs of LR_REGNO in returns and sibcalls.
        (rs6000_output_mi_thunk): Similar.
        (rs6000_sibcall_aix): Similar.
        * config/rs6000/rs6000.md (sibcall, sibcall_value, sibcall_local32,
        sibcall_local64, sibcall_value_local32, sibcall_value_local64,
        sibcall_nonlocal_sysv<mode>, sibcall_value_nonlocal_sysv<mode>):
        Remove the USE of LR_REGNO from the patterns as well.  Delete an
        obsolete comment.
        (return_internal_<mode>): Delete.

2016-08-30  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-simd.md
        (aarch64_ld2<mode>_dreg_le): New.
        (aarch64_ld2<mode>_dreg_be): New.
        (aarch64_ld2<mode>_dreg): Removed.
        (aarch64_ld3<mode>_dreg_le): New.
        (aarch64_ld3<mode>_dreg_be): New.
        (aarch64_ld3<mode>_dreg): Removed.
        (aarch64_ld4<mode>_dreg_le): New.
        (aarch64_ld4<mode>_dreg_be): New.
        (aarch64_ld4<mode>_dreg): Removed.
        (aarch64_ld<VSTRUCT:nregs><VDC:mode>): Wrapper around _le, _be.

2016-08-30  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c (test_one_liner_fixit_insert): Remove
        redundant location param.
        (test_one_liner_fixit_remove): Likewise.
        (test_one_liner_fixit_replace): Likewise.
        (test_one_liner_fixit_replace_equal_secondary_range): Likewise.
        * gcc-rich-location.c
        (gcc_rich_location::add_fixit_misspelled_id): Eliminate call to
        get_range_from_loc.  Drop overload taking a const char *.
        * gcc-rich-location.h
        (gcc_rich_location::add_fixit_misspelled_id): Drop overload taking
        a const char *.

2016-08-30  Szabolcs Nagy  <szabolcs.nagy@arm.com>

        * config/linux.c (linux_libc_has_function): Return true on musl.

2016-08-30  Szabolcs Nagy  <szabolcs.nagy@arm.com>

        * config.gcc (*-*-*musl*): Disable gnu-indirect-function.

2016-08-30  Eric Botcazou  <ebotcazou@adacore.com>

        * postreload-gcse.c (bb_has_well_behaved_predecessors): Tweak criterion
        used for abnormal egdes.

2016-08-30  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/72866
        * tree-vect-patterns.c (search_type_for_mask): Turn into
        a small wrapper, move all code to ...
        (search_type_for_mask_1): ... this new function.  Add caching
        and adjust recursive calls.

        PR debug/77363
        * dwarf2out.c (modified_type_die): Use lookup_type_die (type)
        instead of lookup_type_die (type_main_variant (type)) even for array
        types.

        PR middle-end/77377
        * simplify-rtx.c (avoid_constant_pool_reference): For out of bounds
        constant pool reference return x instead of c.

2016-08-29  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.h (CALL_REALLY_USED_REGISTERS): Do not
        include MQ.

2016-08-29  David Malcolm  <dmalcolm@redhat.com>

        * input.c
        (selftest::test_make_location_nonpure_range_endpoints): Fix
        header comment.

2016-08-29  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c
        (selftest::test_one_liner_fixit_validation_adhoc_locations): New
        function.
        (selftest::test_diagnostic_show_locus_one_liner): Call it.
        * input.c (get_pure_location): Move to libcpp/line-map.c.
        * input.h (get_pure_location): Convert decl to an inline function
        calling implementation in libcpp.

2016-08-29  Uros Bizjak  <ubizjak@gmail.com>

        PR target/77403
        * config/i386/sse.md (vec_set_lo_<mode><mask_name>): Fix assembler
        template for intel asm dialect.
        (vec_set_hi_<mode><mask_name>): Ditto.

2016-08-29  David Malcolm  <dmalcolm@redhat.com>

        * selftest.h (selftest::fail): Add ATTRIBUTE_NORETURN.
        (selftest::fail_formatted): Likewise.

2016-08-29  David Malcolm  <dmalcolm@redhat.com>

        * input.c (make_location): Call get_start and get_finish
        on the endpoints to avoid storing packed ranges or ad-hoc
        ranges in them.
        (selftest::test_make_location_nonpure_range_endpoints): New function.
        (selftest::input_c_tests): Call it.
        * input.h (get_start): New inline function.

2016-08-29  Tom de Vries  <tom@codesourcery.com>

        PR c/77398
        * gimplify.c (gimplify_va_arg_expr): Replace first argument type error
        with assert.

2016-08-29  Eric Botcazou  <ebotcazou@adacore.com>

        * Makefile.in (gcov-iov.h): Add dummy recipe.

2016-08-29  Nathan Sidwell  <nathan@acm.org>

        * config/nvptx/nvptx.c: #include tree-vrp.h.

2016-08-28  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/77324
        * config/sparc/sparc.c (sparc_legitimate_address_p): Accept special
        HIGH+LO construct during reload.

2016-08-28  Tom de Vries  <tom@codesourcery.com>

        PR lto/70955
        * config/i386/i386.c (ix86_build_builtin_va_list_64): Tag type with
        'sysv_abi va_list' attribute.
        (ix86_build_builtin_va_list): Tag type with 'ms_abi va_list' attribute.
        (ix86_canonical_va_list_type): Handle 'sysv_abi/ms_abi va_list'
        attributes.

2016-08-27  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * emit-rtl.h (struct rtl_data): Make stack_slot_list a vector.
        * emit-rtl.c (unshare_all_rtl_1): Adjust.
        (unshare_all_rtl_again): Likewise.
        * function.c (assign_stack_local_1): Likewise.
        (assign_stack_temp_for_type): Likewise.

2016-08-27  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * cfgbuild.c (make_edges): Adjust.
        * cfgrtl.c (can_delete_label_p): Likewise.
        * dwarf2cfi.c (create_trace_edges): Likewise.
        * except.c (sjlj_emit_dispatch_table): Likewise.
        * function.h (struct expr_status): make x_forced_labels a vector.
        * jump.c (rebuild_jump_labels_1): Adjust.
        * reload1.c (set_initial_label_offsets): Likewise.
        * stmt.c (force_label_rtx): Likewise.
        (expand_label): Likewise.

2016-08-27  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * haifa-sched.c (fix_recovery_deps): Make ready_list a vector.

2016-08-27  Patrick Palka  <ppalka@gcc.gnu.org>

        PR tree-optimization/71077
        PR tree-optimization/68542
        * fold-const.c (fold_relational_const): Fix folding of
        VECTOR_CST comparisons that have a scalar boolean result type.
        (selftest::test_vector_folding): New static function.
        (selftest::fold_const_c_tests): Call it.

2016-08-27  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/extend.texi (SPU Built-in Functions): Remove stale
        references to material formerly at IBM and Sony.

2016-08-26  David Edelsohn  <dje.gcc@gmail.com>

        PR target/77349
        * config/rs6000/xcoff.h (DWARF_OFFSET_SIZE): Define as PTR_SIZE.

2016-08-26  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c
        (selftest::test_fixit_consolidation): New function.
        (selftest::diagnostic_show_locus_c_tests): Call it.
        * gcc-rich-location.h (gcc_rich_location): Eliminate unused
        constructor based on source_range.

2016-08-26  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-color.c (color_dict): Add "fixit-insert" and
        "fixit-delete".
        (parse_gcc_colors): Update description of default GCC_COLORS.
        * diagnostic-show-locus.c (colorizer::set_fixit_hint): Delete.
        (colorizer::set_fixit_insert): New method.
        (colorizer::set_fixit_delete): New method.
        (colorizer::get_color_by_name): New method.
        (colorizer::STATE_FIXIT_INSERT): New constant.
        (colorizer::STATE_FIXIT_DELETE): New constant.
        (class colorizer): Drop "_cs" suffix from fields.  Delete "_ce"
        fields in favor of new field "m_stop_color".  Add fields
        "m_fixit_insert" and "m_fixit_delete".
        (colorizer::colorizer): Update for above changes.  Replace
        colorize_start calls with calls to get_color_by_name.
        (colorizer::begin_state): Handle STATE_FIXIT_INSERT and
        STATE_FIXIT_DELETE.  Update for field renamings.
        (colorizer::finish_state): Simplify by using m_stop_color,
        rather than multiple identical "*_ce" fields.
        (colorizer::get_color_by_name): New method.
        (layout::print_any_fixits): Print insertions and replacements
        using the "fixit-insert" color, and deletions using the
        "fixit-delete" color.
        * doc/invoke.texi (-fdiagnostics-color): Update description of
        default GCC_COLORS, and of the supported capabilities.

2016-08-26  Max Filippov  <jcmvbkbc@gmail.com>

        * config/xtensa/xtensa.c (xtensa_expand_prologue): Update
        current_function_static_stack_size variable with the static
        stack frame size of the current function when
        flag_stack_usage_info is enabled.

2016-08-26  Nathan Sidwell  <nathan@acm.org>

        * ipa-inline-analysis.c (inline_write_summary): Remove unnecessary
        assignment inside if condition.

2016-08-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69047
        * tree-ssa.c (maybe_rewrite_mem_ref_base): Handle general bitfield
        extracts similar to what FRE does.
        (non_rewritable_mem_ref_base): Likewise.

2016-08-26  Joseph Myers  <joseph@codesourcery.com>

        * config/i386/i386.c (ix86_libgcc_floating_mode_supported_p)
        (TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Remove.
        * config/i386/i386elf.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
        * config/i386/lynx.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
        * config/i386/netbsd-elf.h (IX86_MAYBE_NO_LIBGCC_TFMODE):
        Likewise.
        * config/i386/netbsd64.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
        * config/i386/nto.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
        * config/i386/openbsd.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
        * config/i386/rtemself.h (IX86_NO_LIBGCC_TFMODE): Likewise.
        * config/i386/vxworks.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.

2016-08-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/70473
        * config/arm/cortex-a8-neon.md (cortex_a8_vfp_muld): Reduce
        reservation duration to 15 cycles.
        (cortex_a8_vfp_macs): Likewise.
        (cortex_a8_vfp_macd): Likewise.
        (cortex_a8_vfp_divs): Likewise.
        (cortex_a8_vfp_divd): Likewise.

2016-08-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.c (arm_sets_movw_movt_fusible_p): New function.
        (aarch_macro_fusion_pair_p): Use above to avoid early return.

2016-08-26  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
            Martin Jambhor  <mjambor@suse.cz>

        * common.opt: New option -fipa-bit-cp.
        * doc/invoke.texi: Document -fipa-bit-cp.
        * opts.c (default_options_table): Add entry for -fipa-bit-cp.
        (enable_fdo_optimizations): Check for flag_ipa_bit_cp.
        * tree-ssa-ccp.h: New header file.
        * tree-ssa-ccp.c: Include tree-ssa-ccp.h
        (bit_value_binop_1): Change to bit_value_binop_1 and export it.
        Replace all occurences of tree parameter by two new params: signop, int.
        (bit_value_unop_1): Change to bit_value_unop and export it.
        Replace all occurences of tree parameter by two new params: signop,
        int.
        (bit_value_binop): Change call from bit_value_binop_1 to
        bit_value_binop.
        (bit_value_assume_aligned): Likewise.
        (bit_value_unop): Change call from bit_value_unop_1 to bit_value_unop.
        (do_ssa_ccp): Pass nonzero_p || flag_ipa_cp_bit instead of nonzero_p
        to ccp_finalize.
        (ccp_finalize): Skip processing if val->mask == 0.
        * ipa-cp.c: Include tree-ssa-ccp.h
        (ipcp_bits_lattice): New class.
        (ipcp_param_lattice (bits_lattice): New member.
        (print_all_lattices): Call ipcp_bits_lattice::print.
        (set_all_contains_variable): Call ipcp_bits_lattice::set_to_bottom.
        (initialize_node_lattices): Likewise.
        (propagate_bits_accross_jump_function): New function.
        (propagate_constants_accross_call): Call
        propagate_bits_accross_jump_function.
        (ipcp_propagate_stage): Store parameter types when in_lto_p is true.
        (ipcp_store_bits_results): New function.
        (ipcp_driver): Call ipcp_store_bits_results.
        * ipa-prop.h (ipa_bits): New struct.
        (ipa_jump_func): Add new member bits of type ipa_bits.
        (ipa_param_descriptor): Change decl to decl_or_type.
        (ipa_get_param): Change decl to decl_or_type and assert on
        PARM_DECL.
        (ipa_get_type): New function.
        (ipcp_transformation_summary): New member bits.
        * ipa-prop.c (ipa_get_param_decl_index_1): s/decl/decl_or_type.
        (ipa_populate_param_decls): Likewise.
        (ipa_dump_param): Likewise.
        (ipa_print_node_jump_functions_for_edge): Pretty-print ipa_bits jump
        function.
        (ipa_set_jf_unknown): Set ipa_bits::known to false.
        (ipa_compute_jump_functions_for_edge): Compute jump function for bits
        propagation.
        (ipa_node_params_t::duplicate): Copy src->bits into dst->bits.
        (ipa_write_jump_function): Add streaming for ipa_bits.
        (ipa_read_jump_function): Add support for reading streamed ipa_bits.
        (write_ipcp_transformation_info): Add streaming for ipa_bits
        summary for ltrans.
        (read_ipcp_transfomration_info): Add support for reading streamed
        ipa_bits.
        (ipcp_update_bits): New function.
        (ipcp_transform_function): Call ipcp_update_bits.

2016-08-25  Szabolcs Nagy  <szabolcs.nagy@arm.com>

        * config/mips/linux.h (MUSL_DYNAMIC_LINKER32): Update.
        (MUSL_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKERN32): Update.

2016-08-25  David Edelsohn  <dje.gcc@gmail.com>

        * multiple_target.c (pass_data_dispatcher_calls): Fix typo.

2016-08-25  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (gen_remaining_tmpl_value_param_die_attributes):
        Only add locations in late dwarf.
        (gen_scheduled_generic_parms_dies): Do not set early dwarf here.
        (dwarf2out_early_finish): But do it here.

2016-08-24  Michael Collison  <michael.collison@linaro.org>
            Michael Collison  <michael.collison@arm.com>

        * config/arm/arm-modes.def: Add new condition code mode CC_V
        to represent the overflow bit.
        * config/arm/arm.c (maybe_get_arm_condition_code):
        Add support for CC_Vmode.
        (arm_gen_unlikely_cbranch): New function to generate common
        rtl conditional branches for overflow patterns.
        * config/arm/arm-protos.h: Add prototype for
        arm_gen_unlikely_cbranch.
        * config/arm/arm.md (addv<mode>4, add<mode>3_compareV,
        addsi3_compareV_upper): New patterns to support signed
        builtin overflow add operations.
        (uaddv<mode>4, add<mode>3_compareC, addsi3_compareV_upper):
        New patterns to support unsigned builtin add overflow operations.
        (subv<mode>4, sub<mode>3_compare1): New patterns to support signed
        builtin overflow subtract operations,
        (usubv<mode>4): New patterns to support unsigned builtin subtract
        overflow operations.
        (negvsi3, negvdi3, negdi2_compare, negsi2_carryin_compare): New patterns
        to support builtin overflow negate operations.

2016-08-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        Revert
        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.

2016-08-24  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * doc/fragments.texi (MULTILIB_REUSE): Mention that only options in
        MULTILIB_OPTIONS should be used.  Small wording fixes.
        * genmultilib: Memorize set of all option combinations in
        combination_space.  Detect if RHS of MULTILIB_REUSE uses an option not
        found in MULTILIB_OPTIONS by checking if option set is listed in
        combination_space.  Output new and existing error message to stderr.

2016-08-24  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/t-aprofile (MULTILIB_MATCHES): Add mapping for
        -mcpu=cortex-a7, -mfpu=neon-fp16, -mfpu=fpv5-d16 and -mfpu=fp-armv8.
        Fix typo in -mfpu=vfpv3-d16-fp16 mapping.
        (MULTILIB_REUSE): Remove reuse rules for option set including
        -mfpu=fp-armv8 and -mfpu=vfpv4

2016-08-24  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * config/arm/t-rtems: Add vfp multilib.

2016-08-23  Ian Lance Taylor  <iant@golang.org>

        * config/s390/s390.c (s390_asm_file_start): Call
        default_file_start.

2016-08-23  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_expand_vector_init): Set
        initialization of all 0's to the 0 constant, instead of directly
        generating XOR.  Add support for V4SImode vector initialization on
        64-bit systems with direct move, and rework the ISA 3.0 V4SImode
        initialization.  Change variables used in V4SFmode vector
        intialization.  For V4SFmode vector splat on ISA 3.0, make sure
        any memory addresses are in index form.  Add support for using
        VSPLTH/VSPLTB to initialize vector short and vector char vectors
        with all of the same element.
        (regno_or_subregno): New helper function to return a register
        number for either REG or SUBREG.
        (rs6000_adjust_vec_address): Do not generate ADDI <reg>,R0,<num>.
        Use regno_or_subregno where possible.
        (rs6000_split_v4si_init_di_reg): New helper function to build up a
        DImode value from two SImode values in order to generate V4SImode
        vector initialization on 64-bit systems with direct move.
        (rs6000_split_v4si_init): Split up the insns for a V4SImode vector
        initialization.
        (rtx_is_swappable_p): V4SImode vector initialization insn is not
        swappable.
        * config/rs6000/rs6000-protos.h (rs6000_split_v4si_init): Add
        declaration.
        * config/rs6000/vsx.md (VSX_SPLAT_I): New mode iterators and
        attributes to initialize V8HImode and V16QImode vectors with the
        same element.
        (VSX_SPLAT_COUNT): Likewise.
        (VSX_SPLAT_SUFFIX): Likewise.
        (UNSPEC_VSX_VEC_INIT): New unspec.
        (vsx_concat_v2sf): Eliminate using 'preferred' register classes.
        Allow SFmode values to come from Altivec registers.
        (vsx_init_v4si): New insn/split for V4SImode vector initialization
        on 64-bit systems with direct move.
        (vsx_splat_<mode>, VSX_W iterator): Rework V4SImode and V4SFmode
        vector initializations, to allow V4SImode vector initializations
        on 64-bit systems with direct move.
        (vsx_splat_v4si): Likewise.
        (vsx_splat_v4si_di): Likewise.
        (vsx_splat_v4sf): Likewise.
        (vsx_splat_v4sf_internal): Likewise.
        (vsx_xxspltw_<mode>, VSX_W iterator): Eliminate using 'preferred'
        register classes.
        (vsx_xxspltw_<mode>_direct, VSX_W iterator): Likewise.
        (vsx_vsplt<VSX_SPLAT_SUFFIX>_di): New insns to support
        initializing V8HImode and V16QImode vectors with the same
        element.
        * config/rs6000/rs6000.h (TARGET_DIRECT_MOVE_64BIT): Disallow
        optimization if -maltivec=be.

2016-08-23  Christophe Lyon  <christophe.lyon@linaro.org>

        * config/arm/arm.md (arm_movqi_insn): Swap predicable_short_it
        attribute for alternatives 3 and 4.

2016-08-23  David Malcolm  <dmalcolm@redhat.com>

        * selftest.c (selftest::assert_str_contains): New function.
        (selftest::test_assertions): Verify ASSERT_STR_CONTAINS.
        * selftest.h (selftest::assert_str_contains): New decl.
        (ASSERT_STR_CONTAINS): New macro.

2016-08-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77286
        * tree-vect-loop.c (vect_analyze_loop_form_1): Do not modify
        the CFG here.
        (vect_transform_loop): Split exit edges of loop and scalar
        loop if required and at the appropriate time.

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.
        Correct a typo in a comment.

2016-08-23  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/s390.md ("*andc_split"): New splitter for and with
        complement.

2016-08-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/27336
        * tree-vrp.c (infer_value_range): Handle stmts that can throw
        by looking for a non-EH edge.
        (process_assert_insertions_for): Likewise.

2016-08-23  Richard Biener  <rguenther@suse.de>

        PR middle-end/77305
        * statistics.c (statistics_counter_event): Robustify against
        NULL current_pass.

2016-08-23  Venkataramanan Kumar  <venkataramanan.kumar@amd.com>

        * config/i386/i386.c (processor_alias_table): Enable PTA_PRFCHW
        for targets amdfam10 and barcelona.

2016-08-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*zero_extendsidi2): Add (*r,*k) alternative.
        (zero_extend<mode>di2): Ditto.
        (*zero_extend<mode>si2): Ditto.
        (*zero_extendqihi2): Ditto.

2016-08-22  Joseph Myers  <joseph@codesourcery.com>

        PR middle-end/77269
        * builtins.c (fold_builtin_classify): Use builtin_decl_explicit
        (BUILT_IN_SIGNBIT) to expand __builtin_isinf_sign.

2016-08-22  Patrick Palka  <ppalka@gcc.gnu.org>

        * print-tree.c (print_node) [VECTOR_CST]: Coalesce the output of
        identical consecutive elements.
        [SSA_NAME]: Print the name's def stmt on its own line.  When printing
        the node's def stmt, avoid printing an unwanted trailing newline by
        replacing the call to print_gimple_stmt() with its inlined body and
        adjusting it to not set pp_needs_newline and to call pp_flush()
        instead of pp_newline_and_flush().

2016-08-22  Joseph Myers  <joseph@codesourcery.com>

        * tree.h (CASE_FLT_FN_FLOATN_NX, float16_type_node)
        (float32_type_node, float64_type_node, float32x_type_node)
        (float128x_type_node): New macros.
        * builtin-types.def (BT_FLOAT16, BT_FLOAT32, BT_FLOAT64)
        (BT_FLOAT128, BT_FLOAT32X, BT_FLOAT64X, BT_FLOAT128X)
        (BT_FN_FLOAT16, BT_FN_FLOAT32, BT_FN_FLOAT64, BT_FN_FLOAT128)
        (BT_FN_FLOAT32X, BT_FN_FLOAT64X, BT_FN_FLOAT128X)
        (BT_FN_FLOAT16_FLOAT16, BT_FN_FLOAT32_FLOAT32)
        (BT_FN_FLOAT64_FLOAT64, BT_FN_FLOAT128_FLOAT128)
        (BT_FN_FLOAT32X_FLOAT32X, BT_FN_FLOAT64X_FLOAT64X)
        (BT_FN_FLOAT128X_FLOAT128X, BT_FN_FLOAT16_CONST_STRING)
        (BT_FN_FLOAT32_CONST_STRING, BT_FN_FLOAT64_CONST_STRING)
        (BT_FN_FLOAT128_CONST_STRING, BT_FN_FLOAT32X_CONST_STRING)
        (BT_FN_FLOAT64X_CONST_STRING, BT_FN_FLOAT128X_CONST_STRING)
        (BT_FN_FLOAT16_FLOAT16_FLOAT16, BT_FN_FLOAT32_FLOAT32_FLOAT32)
        (BT_FN_FLOAT64_FLOAT64_FLOAT64, BT_FN_FLOAT128_FLOAT128_FLOAT128)
        (BT_FN_FLOAT32X_FLOAT32X_FLOAT32X)
        (BT_FN_FLOAT64X_FLOAT64X_FLOAT64X)
        (BT_FN_FLOAT128X_FLOAT128X_FLOAT128X): New type definitions.
        * builtins.def (DEF_GCC_FLOATN_NX_BUILTINS): New macro.
        (copysign, fabs, huge_val, inf, nan, nans): Use it.
        * builtins.c (expand_builtin): Use CASE_FLT_FN_FLOATN_NX for fabs
        and copysign.
        (fold_builtin_0): Use CASE_FLT_FN_FLOATN_NX for inf and huge_val.
        (fold_builtin_1): Use CASE_FLT_FN_FLOATN_NX for fabs.
        * doc/extend.texi (Other Builtins): Document these built-in
        functions.
        * fold-const-call.c (fold_const_call): Use CASE_FLT_FN_FLOATN_NX
        for nan and nans.

2016-08-22  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Binaries): www.opencsw.org now uses https.

2016-08-22  Richard Biener  <rguenther@suse.de>

        * tree-ssa-forwprop.c (pass_forwprop::execute): Use RPO order.

2016-08-21  Uros Bizjak  <ubizjak@gmail.com>

        PR target/77270
        * config/i386/i386.md (prefetch): When TARGET_PRFCHW or
        TARGET_PREFETCHWT1 are disabled, emit 3dNOW! write prefetches for
        non-SSE2 athlons only, otherwise prefer SSE prefetches.

2016-08-20  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * tree-vrp.c (vrp_visit_assignment_or_call): Changed to Return VR.
        (vrp_visit_cond_stmt): Just sets TAKEN_EDGE_P.
        (vrp_visit_switch_stmt): Likewise.
        (extract_range_from_stmt): Factored out from vrp_visit_stmt.
        (extract_range_from_phi_node): Factored out from vrp_visit_phi_stmt.
        (vrp_visit_stmt): Use extract_range_from_stmt.
        (vrp_visit_phi_node): Use extract_range_from_phi_node.

2016-08-20  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * Makefile.in: Add tree-vrp.h to GTFILES.
        * gengtype.c (open_base_files): Add tree-vrp.h.
        * asan.c: Add tree-vrp.h which now has the definition value_range_type.
        * builtins.c: Likewise.
        * fold-const.c: Likewise.
        * gimple-builder.c: Likewise.
        * gimple-laddress.c: Likewise.
        * hsa-gen.c: Likewise.
        * internal-fn.c: Likewise.
        * ssa.h: Likewise.
        * targhooks.c: Liewise,
        * tree-ssa-address.c: Likewise.
        * tree-ssanames.h (value_range_type: Move to tree-vrp.h.
        * tree-vrp.c (struct value_range): Move to tree-vrp.h
        * tree-vrp.h: New file.

2016-08-20  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR tree-optimization/61839
        * tree-vrp.c (two_valued_val_range_p): New.
        (simplify_stmt_using_ranges): Convert CST BINOP VAR where VAR is
        two-valued to VAR == VAL1 ? (CST BINOP VAL1) : (CST BINOP VAL2).
        Also Convert VAR BINOP CST where VAR is two-valued to
        VAR == VAL1 ? (VAL1 BINOP CST) : (VAL2 BINOP CST).

2016-08-19  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c
        (layout::annotation_line_showed_range_p): New method.
        (layout::print_any_fixits): Remove case fixit_hint::REMOVE.
        Reimplement case fixit_hint::REPLACE to cover removals, and
        replacements where the range of the replacement isn't one
        of the ranges in the rich_location.
        (test_one_liner_fixit_replace): Likewise.
        (selftest::test_one_liner_fixit_replace_non_equal_range): New
        function.
        (selftest::test_one_liner_fixit_replace_equal_secondary_range):
        New function.
        (selftest::test_diagnostic_show_locus_one_liner): Call the new
        functions.
        * diagnostic.c (print_parseable_fixits): Remove case
        fixit_hint::REMOVE.

2016-08-19  Uros Bizjak  <ubizjak@gmail.com>

        PR target/77270
        * config/i386/i386.c (ix86_option_override_internal): Remove
        PTA_PRFCHW from entries that also have PTA_3DNOW flag.
        Enable SSE prefetch also for TARGET_PREFETCHWT1.
        Do not try to enable TARGET_PRFCHW ISA flag here.
        * config/i386/i386.md (prefetch): Enable also for TARGET_3DNOW.
        Rewrite expander function body.
        (*prefetch_3dnow): Enable for TARGET_3DNOW and TARGET_PREFETCHWT1.

2016-08-19  Joseph Myers  <joseph@codesourcery.com>

        PR c/32187
        * tree-core.h (TI_COMPLEX_FLOAT16_TYPE)
        (TI_COMPLEX_FLOATN_NX_TYPE_FIRST, TI_COMPLEX_FLOAT32_TYPE)
        (TI_COMPLEX_FLOAT64_TYPE, TI_COMPLEX_FLOAT128_TYPE)
        (TI_COMPLEX_FLOAT32X_TYPE, TI_COMPLEX_FLOAT64X_TYPE)
        (TI_COMPLEX_FLOAT128X_TYPE, TI_FLOAT16_TYPE, TI_FLOATN_TYPE_FIRST)
        (TI_FLOATN_NX_TYPE_FIRST, TI_FLOAT32_TYPE, TI_FLOAT64_TYPE)
        (TI_FLOAT128_TYPE, TI_FLOATN_TYPE_LAST, TI_FLOAT32X_TYPE)
        (TI_FLOATNX_TYPE_FIRST, TI_FLOAT64X_TYPE, TI_FLOAT128X_TYPE)
        (TI_FLOATNX_TYPE_LAST, TI_FLOATN_NX_TYPE_LAST): New enum
        tree_index values.
        (NUM_FLOATN_TYPES, NUM_FLOATNX_TYPES, NUM_FLOATN_NX_TYPES): New
        macros.
        (struct floatn_type_info): New structure type.
        (floatn_nx_types): New variable declaration.
        * tree.h (FLOATN_TYPE_NODE, FLOATN_NX_TYPE_NODE)
        (FLOATNX_TYPE_NODE, float128_type_node, float64x_type_node)
        (COMPLEX_FLOATN_NX_TYPE_NODE): New macros.
        * tree.c (floatn_nx_types): New variable.
        (build_common_tree_nodes): Initialize _FloatN, _FloatNx and
        corresponding complex types.
        * target.def (floatn_mode): New hook.
        * targhooks.c: Include "real.h".
        (default_floatn_mode): New function.
        * targhooks.h (default_floatn_mode): New prototype.
        * doc/extend.texi (Floating Types): Document _FloatN and _FloatNx
        types.
        * doc/sourcebuild.texi (float@var{n}, float@var{n}x): Document new
        effective-target and dg-add-options keywords.
        (float@var{n}_runtime, float@var{n}x_runtime, floatn_nx_runtime):
        Document new effective-target keywords.
        * doc/tm.texi.in (TARGET_FLOATN_MODE): New @hook.
        * doc/tm.texi: Regenerate.
        * ginclude/float.h (LDBL_DECIMAL_DIG): Define to
        __LDBL_DECIMAL_DIG__, not __DECIMAL_DIG__.
        [__STDC_WANT_IEC_60559_TYPES_EXT__]: Define macros from TS
        18661-3.
        * real.h (struct real_format): Add field ieee_bits.
        * real.c (ieee_single_format, mips_single_format)
        (motorola_single_format, spu_single_format, ieee_double_format)
        (mips_double_format, motorola_double_format)
        (ieee_extended_motorola_format, ieee_extended_intel_96_format)
        (ieee_extended_intel_128_format)
        (ieee_extended_intel_96_round_53_format, ibm_extended_format)
        (mips_extended_format, ieee_quad_format, mips_quad_format)
        (vax_f_format, vax_d_format, vax_g_format, decimal_single_format)
        (decimal_double_format, decimal_quad_format, ieee_half_format)
        (arm_half_format, real_internal_format: Initialize ieee_bits
        field.
        * config/i386/i386.c (ix86_init_builtin_types): Do not initialize
        float128_type_node.  Set float80_type_node to float64x_type_node
        if appropriate and long_double_type_node not appropriate.
        * config/ia64/ia64.c (ia64_init_builtins): Likewise.
        * config/pdp11/pdp11.c (pdp11_f_format, pdp11_d_format):
        Initialize ieee_bits field.
        * config/rs6000/rs6000.c (TARGET_FLOATN_MODE): New macro.
        (rs6000_init_builtins): Set ieee128_float_type_node to
        float128_type_node.
        (rs6000_floatn_mode): New function.

2016-08-19  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/rdseedintrin.h (_rdseed16_step, _rdseed32_step,
        _rdseed64_step): Uglify argument names and/or local variable names
        in inline functions.
        * config/i386/rtmintrin.h (_xabort): Likewise.
        * config/i386/avx512vlintrin.h (_mm256_ternarylogic_epi64,
        _mm256_mask_ternarylogic_epi64, _mm256_maskz_ternarylogic_epi64,
        _mm256_ternarylogic_epi32, _mm256_mask_ternarylogic_epi32,
        _mm256_maskz_ternarylogic_epi32, _mm_ternarylogic_epi64,
        _mm_mask_ternarylogic_epi64, _mm_maskz_ternarylogic_epi64,
        _mm_ternarylogic_epi32, _mm_mask_ternarylogic_epi32,
        _mm_maskz_ternarylogic_epi32): Likewise.
        * config/i386/lwpintrin.h (__llwpcb, __lwpval32, __lwpval64,
        __lwpins32, __lwpins64): Likewise.
        * config/i386/avx2intrin.h (_mm_i32gather_pd, _mm_mask_i32gather_pd,
        _mm256_i32gather_pd, _mm256_mask_i32gather_pd, _mm_i64gather_pd,
        _mm_mask_i64gather_pd, _mm256_i64gather_pd, _mm256_mask_i64gather_pd,
        _mm_i32gather_ps, _mm_mask_i32gather_ps, _mm256_i32gather_ps,
        _mm256_mask_i32gather_ps, _mm_i64gather_ps, _mm_mask_i64gather_ps,
        _mm256_i64gather_ps, _mm256_mask_i64gather_ps, _mm_i32gather_epi64,
        _mm_mask_i32gather_epi64, _mm256_i32gather_epi64,
        _mm256_mask_i32gather_epi64, _mm_i64gather_epi64,
        _mm_mask_i64gather_epi64, _mm256_i64gather_epi64,
        _mm256_mask_i64gather_epi64, _mm_i32gather_epi32,
        _mm_mask_i32gather_epi32, _mm256_i32gather_epi32,
        _mm256_mask_i32gather_epi32, _mm_i64gather_epi32,
        _mm_mask_i64gather_epi32, _mm256_i64gather_epi32,
        _mm256_mask_i64gather_epi32): Likewise.
        * config/i386/pmm_malloc.h (_mm_malloc, _mm_free): Likewise.
        * config/i386/ia32intrin.h (__writeeflags): Likewise.
        * config/i386/pkuintrin.h (_wrpkru): Likewise.
        * config/i386/avx512pfintrin.h (_mm512_mask_prefetch_i32gather_pd,
        _mm512_mask_prefetch_i32gather_ps, _mm512_mask_prefetch_i64gather_pd,
        _mm512_mask_prefetch_i64gather_ps, _mm512_prefetch_i32scatter_pd,
        _mm512_prefetch_i32scatter_ps, _mm512_mask_prefetch_i32scatter_pd,
        _mm512_mask_prefetch_i32scatter_ps, _mm512_prefetch_i64scatter_pd,
        _mm512_prefetch_i64scatter_ps, _mm512_mask_prefetch_i64scatter_pd,
        _mm512_mask_prefetch_i64scatter_ps): Likewise.
        * config/i386/gmm_malloc.h (_mm_malloc, _mm_free): Likewise.
        * config/i386/avx512fintrin.h (_mm512_ternarylogic_epi64,
        _mm512_mask_ternarylogic_epi64, _mm512_maskz_ternarylogic_epi64,
        _mm512_ternarylogic_epi32, _mm512_mask_ternarylogic_epi32,
        _mm512_maskz_ternarylogic_epi32, _mm512_i32gather_ps,
        _mm512_mask_i32gather_ps, _mm512_i32gather_pd, _mm512_i64gather_ps,
        _mm512_i64gather_pd, _mm512_i32gather_epi32, _mm512_i32gather_epi64,
        _mm512_i64gather_epi32, _mm512_i64gather_epi64): Likewise.

        * config/i386/fxsrintrin.h (_fxsave): Remove return keyword in inlines
        returning void.
        (_fxrstor, _fxsave64, _fxrstor64): Likewise.
        * config/i386/xsaveintrin.h (_xsave, _xrstor, _xsave64, _xrstor64):
        Likewise.
        * config/i386/xsaveoptintrin.h (_xsaveopt, _xsaveopt64): Likewise.
        * config/i386/pkuintrin.h (_wrpkru): Likewise.  Add space after
        function name.
        (_rdpkru_u32): Add space after function name.

        * config/i386/t-i386 (i386-c.o): Don't depend on
        i386-builtin-types.inc.
        (i386.o): Depend on i386-builtin-types.inc.

2016-08-19  Matthew Wahab  <matthew.wahab@arm.com>

        PR target/77281
        * config/arm/arm.c (neon_valid_immediate): Delete declaration.
        Use const_vec_duplicate to check for duplicated elements.

2016-08-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77290
        * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
        Fix flag_tree_parallelize_loops check.

2016-08-19  Richard Biener  <rguenther@suse.de>

        * match.pd (x | 0 -> x): Add.

2016-08-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77286
        * tree-vect-loop-manip.c (slpeel_duplicate_current_defs_from_edges):
        Deal with virtual PHIs being out-of-order.

2016-08-18  David Malcolm  <dmalcolm@redhat.com>

        * doc/invoke.texi (fverbose-asm): Note that source code lines
        are emitted, and provide an example.
        * final.c (asm_show_source): New function.
        (final_scan_insn): Call asm_show_source.

2016-08-18  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c (colorizer::colorizer): Replace diagnostic
        param with diagnostic_kind.
        (class colorizer): Similarly replace field m_diagnostic with
        m_diagnostic_kind.
        (colorizer::colorizer): Replace diagnostic
        param with diagnostic_kind.
        (colorizer::begin_state): Update for above field change.
        (layout::layout): Replace diagnostic param with rich_location *
        and diagnostic_kind.
        (diagnostic_show_locus): Replace diagnostic param with richloc
        and diagnostic_kind.
        (class selftest::test_diagnostic_context): New class.
        (selftest::test_diagnostic_show_locus_unknown_location): New
        function.
        (selftest::test_one_liner_simple_caret): New function.
        (selftest::test_one_liner_caret_and_range): New function.
        (selftest::test_one_liner_multiple_carets_and_ranges): New
        function.
        (selftest::test_one_liner_fixit_remove): New function.
        (selftest::test_one_liner_fixit_replace): New function.
        (selftest::test_diagnostic_show_locus_one_liner): New function.
        (selftest::diagnostic_show_locus_c_tests): Call the new test
        functions.
        * diagnostic.c (diagnostic_initialize): Initialize
        colorize_source_p, show_ruler_p and parseable_fixits_p.
        (default_diagnostic_finalizer): Update for change to
        diagnostic_show_locus.
        (diagnostic_append_note): Likewise.
        * diagnostic.h (diagnostic_show_locus): Replace
        const diagnostic_info * param with location * and diagnostic_t.

2016-08-18  David Malcolm  <dmalcolm@redhat.com>

        * input.c (saved_line_table): New global.
        (class selftest::temp_line_table): Rename to line_table_test and
        move declaration to selftest.h, and drop field m_old_line_table.
        (selftest::temp_line_table::temp_line_table): Rename ctor to...
        (selftest::line_table_test::line_table_test): ...this.  Add a
        default ctor.  Store current value of line_table within
        saved_line_table.
        (selftest::temp_line_table::~temp_line_table): Rename dtor to...
        (selftest::line_table_test::~line_table_test): ...this, and
        restore line_table from the saved_line_table, rather than
        m_old_line_table.
        (selftest::test_accessing_ordinary_linemaps): Update for above
        renaming.
        (selftest::test_lexer): Likewise.
        (struct selftest::lexer_test): Likewise.
        (selftest::lexer_test::lexer_test): Likewise.
        (selftest::input_c_tests): Move the looping over test cases from
        here into...
        (selftest::for_each_line_table_case): New function.
        * input.h (saved_line_table): New decl.
        * selftest.h (struct selftest::line_table_case): New forward decl.
        (class selftest::line_table_test): New class, moved here from
        selftest::temp_line_table in input.c, and renamed.
        (selftest::for_each_line_table_case): New decl.

2015-08-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/72839
        * config/i386/i386.c (lakemont_cost): Set MOVE_RATIO to 17.

2016-08-18  Chung-Lin Tang  <cltang@codesourcery.com>

        PR middle-end/70895
        * gimplify.c (omp_add_variable): Adjust/add variable mapping on
        enclosing parallel construct for reduction variables on OpenACC loop
        directives.

2016-08-18  Pierre-Marie de Rodat  <derodat@adacore.com>

        * dwarf2out.c (copy_dwarf_procedure): Remove obsolete comment.
        (new_dwarf_proc_die): Emit DW_TAG_dwarf_procedure DIEs even for
        -gdwarf-3.
        (function_to_dwarf_procedure): Update comment.

2016-08-18  David Malcolm  <dmalcolm@redhat.com>

        * input.c (diagnostics_file_cache_forcibly_evict_file): New
        function.
        * input.h (diagnostics_file_cache_forcibly_evict_file): New
        declaration.
        * selftest.c (selftest::temp_source_file::~temp_source_file):
        Evict m_filename from the diagnostic file cache.

2016-08-18  Richard Biener  <rguenther@suse.de>

        * tree-pass.h (make_pass_materialize_all_clones): Declare.
        * ipa.c (pass_data_materialize_all_clones, pass_materialize_all_clones,
        make_pass_materialize_all_clones): New simple IPA pass encapsulating
        clone materialization.
        * passes.def (all_late_ipa_passes): Start with
        pass_materialize_all_clones.
        * cgraphunit.c (symbol_table::compile): Remove call to
        materialize_all_clones.
        * tree-into-ssa.c: Include statistics.h.
        (update_ssa): Count number of times we do incremental/rewrite
        SSA update.

2016-08-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/77282
        * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
        When doing auto-parallelizing also prevent use of PHIs that
        carry dependences across loop backedges.

2016-08-18  Tamar Christina  <tamar.christina@arm.com>
            Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * varasm.c (default_use_anchors_for_symbol_p): Reject too large decls.

2016-08-18  Richard Biener  <rguenther@suse.de>

        * ssa-iterators.h (ssa_vuse_operand): New inline.
        * tree-if-conv.c (ifc_temp_var): Update virtual operand.
        (predicate_all_scalar_phis): Use remove_phi_node to remove
        phi nodes predicated.  Delay removing virtual PHIs.
        (predicate_mem_writes): Update virtual operands.
        (combine_blocks): Likewise.  Propagate out remaining virtual PHIs.
        (tree_if_conversion): Do not rewrite virtual SSA form.
        * tree-phinodes.c (release_phi_node): Make static.
        * tree-phinodes.h (release_phi_node): Remove.

2016-08-18  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (enum ix86_builtins): Remove IX86_BUILTIN_*
        codes that appear in bdesc_* arrays, instead include i386-builtin.def
        twice to define those.
        (bdesc_comi, bdesc_pcmpestr, bdesc_pcmpistr, bdesc_special_args,
        bdesc_args, bdesc_round_args, bdesc_mpx, bdesc_mpx_const,
        bdesc_multi_arg): Define by including i386-builtin.def the third time.
        * config/i386/i386-builtin.def: New file.

2016-08-17  David Malcolm  <dmalcolm@redhat.com>

        * input.c (get_source_range_for_char): Rename to...
        (selftest::get_source_range_for_char): ...this, and move within
        the #if CHECKING_P guard.
        (get_num_source_ranges_for_substring): Rename to...
        (selftest::get_num_source_ranges_for_substring): ...this, move
        within the #if CHECKING_P guard, and make static.
        (selftest::assert_num_substring_ranges): Initialize
        actual_num_ranges.

2016-08-18  Alan Modra  <amodra@gmail.com>

        PR rtl-optimization/72771
        * reload.c (find_reloads): Don't assume that a subreg mem is OK
        when find_reloads_toplev returns address_reloaded==-1.
        (alternative_allows_const_pool_ref): Update comment.

2015-08-17  Alan Hayward  <alan.hayward@arm.com>

        PR tree-optimization/71752
        * tree-vect-loop.c (vectorizable_reduction): Keep SLP operand ordering.
        * tree-vect-slp.c (vect_get_slp_defs): Handle null operands.

2016-08-17  Jakub Jelinek  <jakub@redhat.com>

        * gimple-fold.c (gimple_fold_call): Use gimple_call_noreturn_p
        instead of testing ECF_NORETURN bit in gimple_call_flags.
        * tree-cfg.c (make_edges_bb, execute_fixup_cfg): Likewise.
        * predict.c (tree_bb_level_predictions): Likewise.
        * gimple-low.c (gimple_stmt_may_fallthru): Likewise.

        PR middle-end/77259
        * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children): If
        turning a call into __builtin_unreachable-like noreturn call, adjust
        gimple_call_set_fntype.
        * tree-cfgcleanup.c (fixup_noreturn_call): Remove lhs also if
        gimple_call_fntype has void return type.

2016-08-17  Chung-Lin Tang  <cltang@codesourcery.com>

        * omp-low.c (lower_oacc_reductions): Adjust variable lookup to use
        maybe_lookup_decl, to handle nested acc loop directives.

2016-08-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/76490
        * tree-vrp.c (update_value_range): Preserve overflow infinities
        when intersecting with ranges from get_range_info.
        (operand_less_p): Handle overflow infinities correctly.
        (value_range_constant_singleton): Use vrp_operand_equal_p
        to handle overflow max/min correctly.
        (vrp_valueize): Likewise.
        (union_ranges): Likewise.
        (intersect_ranges): Likewise.
        (vrp_visit_phi_node): Improve iteration limitation to only
        apply when we'll possibly re-visit the PHI via a changed argument
        on the backedge.

2016-08-17  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/t-aprofile (MULTILIB_EXCEPTIONS): Rewrite into ...
        (MULTILIB_REQUIRED): This by specifying multilib needing to be built
        rather than those that should not be built.

2016-08-17  Stanislaw Halik  <sthalik@misaki.pl>

        PR target/66488
        * config/i386/xm-mingw32.h (HOST_BITS_PER_PTR): Define if __x86_64__.

2016-08-17  Richard Biener  <rguenther@suse.de>

        * tree-ssa.c: Include tree-cfg.h and tree-dfa.h.
        (verify_vssa): New function verifying virtual SSA form.
        (verify_ssa): Call it.
        * tree-ssa-loop-manip.c (slpeel_update_phi_nodes_for_guard2):
        Do not apply loop-closed SSA handling to virtuals.
        * ssa-iterators.h (op_iter_init): Handle GIMPLE_TRANSACTION.
        * tree-into-ssa.c (prepare_use_sites_for): Skip virtual SSA names
        when rewriting their symbol.
        (prepare_def_site_for): Likewise.
        * tree-chkp-opt.c (chkp_reduce_bounds_lifetime): Clear virtual
        operands of moved stmts.

2016-08-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/23855
        * tree-ssa-loop-unswitch.c: Include tree-ssa-loop-manip.h.
        (tree_unswitch_outer_loop): Iterate find_loop_guard as long as we
        find guards to hoist.  Do not update SSA form but rewrite virtuals
        into loop closed SSA.
        (find_loop_guard): Adjust to skip already hoisted guards.  Do
        not mark virtuals for renaming or update SSA form.

2016-08-17  Martin Liska  <mliska@suse.cz>

        * coverage.c (get_gcov_type): Replace GCOV_TYPE_SIZE with
        a LONG_LONG_TYPE_SIZE comparison.
        * gcov-io.h: Remove macro definitions.
        * tree-profile.c (gimple_gen_edge_profiler): Replace usage
        of GCOV_TYPE_ATOMIC_FETCH_ADD with a LONG_LONG_TYPE_SIZE
        comparison.

2016-08-16  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (enum ix86_builtins): Reorder enumerators, so
        that builtins not mentioned in bdesc_* arrays come first, then
        the ones mentioned in bdesc_* arrays in the order they appear in
        the arrays in between IX86_BUILTIN__BDESC_*_FIRST and
        IX86_BUILTIN__BDESC_*_LAST enumerator.
        (bdesc_mpx): Fix up a comment typo.
        (bdesc_multi_arg): Remove __builtin_ia32_vpcomne[bwdq] and
        __builtin_ia32_vpcomneu[bwdq] builtins.
        (BDESC_VERIFY, BDESC_VERIFYS): Define.
        (ix86_init_mmx_sse_builtins, ix86_init_mpx_builtins): Verify
        enum ix86_builtins ordering.
        (ix86_expand_builtin): Use enum ix86_builtins ordering assumption
        for direct bdesc_* array member access instead of searching all the
        arrays until an fcode match is found.

2016-08-16  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*ashl<mode>3_mask): Rewrite define_insn
        pattern as define_insn_and_split.  Split insn before reload to
        ashl<mode>3_1.
        (*<shift_insn><mode>3_mask): Ditto.  Split insn before reload to
        <shift_insn><mode>3_1.
        (*<rotate_insn><mode>3_mask): Ditto.  Split insn before reload to
        <rotate_insn><mode>3_1.

2016-08-16  David Malcolm  <dmalcolm@redhat.com>

        PR c/72857
        * input.c (get_source_range_for_substring): Rename to...
        (get_source_location_for_substring): ...this, adding param
        "caret_idx", and converting output param from source_range * to
        location_t *.
        (get_source_range_for_char): New function.
        (get_num_source_ranges_for_substring): Update comment to reflect
        above renaming.
        (assert_char_at_range): Update to use get_source_range_for_char
        rather than get_source_range_for_substring.
        (test_lexer_string_locations_concatenation_2): Likewise.
        * substring-locations.h (get_source_range_for_substring): Rename
        to...
        (get_source_location_for_substring): ...this, and adding param
        "caret_idx", and converting output param from source_range * to
        location_t *.

2016-08-16  David Malcolm  <dmalcolm@redhat.com>

        * input.c (class selftest::temp_source_file): Move to
        selftest.h.
        (selftest::temp_source_file::temp_source_file): Move to
        selftest.c.
        (selftest::temp_source_file::~temp_source_file): Likewise.
        * selftest.c (selftest::temp_source_file::temp_source_file): Move
        here from input.c.
        (selftest::temp_source_file::~temp_source_file): Likewise.
        * selftest.h (class selftest::temp_source_file): Move here from
        input.c

2016-08-16  Jakub Jelinek  <jakub@redhat.com>

        PR target/71910
        * tree-cfg.c (execute_fixup_cfg): Add node variable, use it.  Before
        inlining, add cgraph edge for the added __builtin_unreachable call.

        PR middle-end/67485
        * expmed.c (expand_mult_const): Change val_so_far's type to UHWI,
        only cast it to SHWI for the final comparison.

2016-08-16  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/36412
        * doc/gcov.texi: Document --hash-filenames(-x).
        * gcov.c (print_usage): Add the option.
        (process_args): Process the option, sort options alphabetically.
        (md5sum_to_hex): New function.
        (make_gcov_file_name): Do the md5sum and append it to a
        filename.

2016-08-16  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/69848
        * config/aarch64/aarch64-simd.md (vcond<mode><mode>): Invert NE
        and swtich operands to avoid additional NOT instruction.
        (vcond<v_cmp_mixed><mode>): Ditto.
        (vcondu<mode><mode>, vcondu<mode><v_cmp_mixed>): Ditto.

2016-08-16  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/install.texi (*-*-solaris2*): Adjust latest change.

2016-08-16  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/76783
        * tree-ssa-propagate.c (ssa_prop_init): Use RPO order.  Clear
        BB visited flags at start.

2016-08-16  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/72817
        PR tree-optimization/73450
        * tree-ssa-loop-niter.c (number_of_iterations_ne): Check
        multiple_of_p for adjusted IV.base.

2016-08-15  Uros Bizjak  <ubizjak@gmail.com>

        PR target/72867
        * config/i386/sse.md (<code><mode>3<mask_name><round_saeonly_name>):
        Emit ieee_<ieee_maxmin><mode>3<mask_name><round_saeonly_name>
        for !flag_finite_math_only or flag_signed_zeros.
        (*<code><mode>3<mask_name><round_saeonly_name>): Rename from
        *<code><mode>3_finite<mask_name><round_saeonly_name>.  Do not
        depend on flag_finite_math_only.
        (ieee_<ieee_maxmin><mode>3<mask_name><round_saeonly_name>):
        New insn pattern.
        (*<code><mode>3<mask_name><round_saeonly_name>): Remove.
        (*ieee_smin<mode>3): Ditto.
        (*ieee_smax<mode>3): Ditto.
        * config/i386/mmx.md (mmx_<code>v2sf3): Emit
        mmx_ieee_<ieee_maxmin>v2sf3 for !flag_finite_math_only or
        flag_signed_zeros.
        (*mmx_<code>v2sf3): Rename from *mmx_<code>v2sf3_finite.  Do not
        depend on flag_finite_math_only.
        (mmx_ieee_<ieee_maxmin>v2sf3): New insn pattern.
        (*mmx_<code>v2sf3): Remove.
        * config/i386/subst.md (round_saeonly_mask_arg3): New subst attribute.
        * config/i386/i386.c (ix86_expand_sse_fp_mimnax): Check
        flag_signed_zeros instead of !flag_unsafe_math_optimizations.

2016-08-15  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/73650
        * lra-constraints.c (simple_move_p): If the insn is multiple_sets
        it is not a simple move.

2016-08-15  Martin Liska  <mliska@suse.cz>

        PR driver/72765
        * gcc.c (do_spec_1): Call save_string with the right size.
        (save_string): Do an assert about string we copy.

2016-08-15  Richard Biener  <rguenther@suse.de>

        * ree.c (rest_of_handle_ree): Remove redundant timevar push/pop.
        * config/i386/i386.c (pass_data_insert_vzeroupper): Account to
        TV_MACH_DEP.
        (pass_data_stv): Likewise.

2016-08-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/73434
        * tree-ssa-sccvn.c (vn_reference_maybe_forwprop_address): Preserve
        TBAA info on the base when forwarding a non-invariant address.

2016-08-15  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (struct checksum_attributes): Add
        at_string_length_bit_size and at_string_length_byte_size fields.
        (collect_checksum_attributes): Handle DW_AT_string_length_bit_size
        and DW_AT_string_length_byte_size.
        (die_checksum_ordered): Handle at_string_length_bit_size and
        at_string_length_byte_size.
        (gen_array_type_die): For dwarf_version >= 5 emit
        DW_AT_string_length_byte_size instead of DW_AT_byte_size.
        (adjust_string_types): For dwarf_version >= 5 remove
        DW_AT_string_length_byte_size instead of DW_AT_byte_size.
        (resolve_addr): Likewise.

        PR debug/71906
        * dwarf2out.c (string_types): New variable.
        (gen_array_type_die): Change early_dwarf handling of
        DW_AT_string_length, create DW_OP_call4 referencing the
        length var temporarily.  Handle parameters that are pointers
        to string length.
        (adjust_string_types): New function.
        (gen_subprogram_die): Temporarily set string_types to local var,
        call adjust_string_types if needed.
        (non_dwarf_expression, copy_deref_exprloc, optimize_string_length):
        New functions.
        (resolve_addr): Adjust DW_AT_string_length if it is DW_OP_call4.

2016-08-15  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/install.texi (*-*-solaris2*): Fix version number and document
        requirement on GNU make for building libjava with the Solaris linker.

2016-08-15  Martin Liska  <mliska@suse.cz>
            Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/72824
        * tree-loop-distribution.c (const_with_all_bytes_same)
        <case VECTOR_CST>: Fix a typo.

2016-08-14  Uros Bizjak  <ubizjak@gmail.com>

        PR target/76342
        * config/i386/avx512fintrin.h (_mm512_undefined_epi32):
        Renamed from _mm512_undefined_si512.
        (_mm_undefined_si512): New definition.

2016-08-13  Richard Biener  <rguenther@suse.de>

        * tree-ssa-forwprop.c (pass_forwprop::execute): Propagate
        into PHIs and update the lattice for its def.

2016-08-12  Jakub Jelinek  <jakub@redhat.com>

        PR c/71512
        * ubsan.c (instrument_si_overflow): Pass true instead of false
        to gsi_replace.
        (pass_ubsan::execute): Call gimple_purge_dead_eh_edges at the end
        of bbs.  Return TODO_cleanup_cfg if any returned true.

2016-08-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/vsx.md (vsx_concat_<mode>): Add support for the
        ISA 3.0 MTVSRDD instruction.
        (vsx_splat_<mode>): Change cpu type of MTVSRDD instruction to
        vecperm.

2016-08-12  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR tree-optimization/71083
        * tree-predcom.c (ref_at_iteration): Use a COMPONENT_REF for the
        bitfield access when possible.

2016-08-12  Patrick Palka  <ppalka@gcc.gnu.org>

        PR middle-end/71654
        * match.pd ((T)A CMP (T)B -> A CMP B): Allow (T)A to be a
        sign-changing cast from a shorter unsigned type to a wider
        signed type.

2016-08-12  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (avx512dq_vextract<shuffletype>64x2_1_maskm,
        vec_extract_hi_<mode>_mask, vec_extract_lo_<mode>_mask,
        vec_extract_hi_<mode>_mask): Use Yk constraint instead of k.

2016-08-12  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost):
        Correct costs for vec_construct.

2016-08-12  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/69848
        * tree-vectorizer.h (enum vect_def_type): New condition reduction
        type CONST_COND_REDUCTION.
        * tree-vect-loop.c (vectorizable_reduction): Support new condition
        reudction type CONST_COND_REDUCTION.

2016-08-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/57326
        * tree-ssa-pre.c (fully_constant_expression): Handle simplification
        returning an SSA name.
        (phi_translate_1): When fully_constant_expression returns a NAME
        make sure we have a leader for it.

2016-08-12  Martin Liska  <mliska@suse.cz>
            Adam Fineman  <afineman@afineman.com>

        * gcov.c (process_file): Create .gcov file when .gcda
        file is missing.

2016-08-12  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * alias.c (find_base_value): Adjust fall through comment.
        * cfgexpand.c (expand_debug_expr): Likewise.
        * combine.c (find_split_point): Likewise.
        (expand_compound_operation): Likewise.  Add FALLTHRU.
        (make_compound_operation): Adjust fall through comment.
        (canon_reg_for_combine): Add FALLTHRU.
        (force_to_mode): Adjust fall through comment.
        (simplify_shift_const_1): Likewise.
        (simplify_comparison): Likewise.
        * config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Add
        FALLTHRU.
        * config/aarch64/predicates.md: Likewise.
        * config/i386/i386.c (function_arg_advance_32): Likewise.
        (ix86_gimplify_va_arg): Likewise.
        (print_reg): Likewise.
        (ix86_print_operand): Likewise.
        (ix86_build_const_vector): Likewise.
        (ix86_expand_branch): Likewise.
        (ix86_sched_init_global): Adjust fall through comment.
        (ix86_expand_args_builtin): Add FALLTHRU.
        (ix86_expand_builtin): Likewise.
        (ix86_expand_vector_init_one_var): Likewise.
        * config/rs6000/rs6000.c (rs6000_emit_vector_compare_inner): Likewise.
        (rs6000_adjust_cost): Likewise.
        (insn_must_be_first_in_group): Likewise.
        * config/rs6000/rs6000.md: Likewise.  Adjust fall through comment.
        * dbxout.c (dbxout_symbol): Adjust fall through comment.
        * df-scan.c (df_uses_record): Likewise.
        * dojump.c (do_jump): Add FALLTHRU.
        * dwarf2out.c (mem_loc_descriptor): Likewise.  Adjust fall through
        comment.
        (resolve_args_picking_1): Adjust fall through comment.
        (loc_list_from_tree_1): Likewise.
        * expmed.c (make_tree): Likewise.
        * expr.c (expand_expr_real_2): Add FALLTHRU.
        (expand_expr_real_1): Likewise.  Adjust fall through comment.
        * fold-const.c (const_binop): Adjust fall through comment.
        (fold_truth_not_expr): Likewise.
        (fold_cond_expr_with_comparison): Add FALLTHRU.
        (fold_binary_loc): Likewise.
        (contains_label_1): Adjust fall through comment.
        (multiple_of_p): Likewise.
        * gcov-tool.c (process_args): Add FALLTHRU.
        * genattrtab.c (check_attr_test): Likewise.
        (write_test_expr): Likewise.
        * genconfig.c (walk_insn_part): Likewise.
        * genpreds.c (validate_exp): Adjust fall through comment.
        (needs_variable): Likewise.
        * gensupport.c (get_alternatives_number): Add FALLTHRU.
        (subst_dup): Likewise.
        * gimple-pretty-print.c (dump_gimple_assign): Likewise.
        * gimplify.c (gimplify_addr_expr): Adjust fall through comment.
        (gimplify_scan_omp_clauses): Add FALLTHRU.
        (goa_stabilize_expr): Likewise.
        * graphite-isl-ast-to-gimple.c (substitute_ssa_name): Adjust fall
        through comment.
        * hsa-gen.c (get_address_from_value): Likewise.
        * ipa-icf.c (sem_function::hash_stmt): Likewise.
        * ira.c (ira_setup_alts): Add FALLTHRU.
        * lra-eliminations.c (lra_eliminate_regs_1): Adjust fall through
        comment.
        * lto-streamer-out.c (lto_output_tree_ref): Add FALLTHRU.
        * opts.c (common_handle_option): Likewise.
        * read-rtl.c (read_rtx_code): Likewise.
        * real.c (round_for_format): Likewise.
        * recog.c (asm_operand_ok): Likewise.
        * reginfo.c (reg_scan_mark_refs): Adjust fall through comment.
        * reload1.c (set_label_offsets): Likewise.
        (eliminate_regs_1): Likewise.
        (reload_reg_reaches_end_p): Likewise.
        * rtlanal.c (commutative_operand_precedence): Add FALLTHRU.
        (rtx_cost): Likewise.
        * sched-rgn.c (is_exception_free): Likewise.
        * simplify-rtx.c (simplify_rtx): Adjust fall through comment.
        * stor-layout.c (int_mode_for_mode): Likewise.
        * toplev.c (print_to_asm_out_file): Likewise.
        (print_to_stderr): Likewise.
        * tree-cfg.c (gimple_verify_flow_info): Likewise.
        * tree-chrec.c (chrec_fold_plus_1): Add FALLTHRU.
        (chrec_fold_multiply): Likewise.
        (evolution_function_is_invariant_rec_p): Likewise.
        (for_each_scev_op): Likewise.
        * tree-data-ref.c (siv_subscript_p): Likewise.
        (get_references_in_stmt): Likewise.
        * tree.c (find_placeholder_in_expr): Adjust fall through comment.
        (substitute_in_expr): Likewise.
        (type_cache_hasher::equal): Likewise.
        (walk_type_fields): Likewise.
        * var-tracking.c (adjust_mems): Add FALLTHRU.
        (set_dv_changed): Adjust fall through comment.
        * varasm.c (default_function_section): Add FALLTHRU.

2016-08-12  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * tree-complex.c (expand_complex_division): Add missing break.

2016-08-12  Richard Biener  <rguenther@suse.de>

        * passes.c (execute_todo): Do not push/pop TV_TODO.
        (execute_one_ipa_transform_pass): Move timevar push/pop TODO execution.
        (execute_one_pass): Likewise.
        * common.opt (ftime-report-details): New switch.
        * doc/invoke.texi (ftime-report-details): Document.
        * timevar.h (timer::print_row): Adjust signature.
        (timer::all_zero): New static helper.
        (timer::child_map_t): New typedef.
        (timer::time_var_def): Add children field.
        * timevar.c (timer::named_items::print): Adjust.
        (timer::~timer): Free timevar recorded children.
        (timer::pop_internal): When -ftime-report-details record
        time spent in sub-timevars.
        (timer::print_row): Adjust.
        (timer::print): Print sub-timevar stats, use all_zero.
        * timevar.def (TV_TODO): Remove.

2016-08-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/72851
        * tree-ssa-propagate.c: Include cfganal.h.  Rewrite block and stmt
        worklists to use bitmaps indexed in execution order.
        (executable_blocks, cfg_blocks_num, cfg_blocks_tail, cfg_blocks_head,
        bb_in_list, interesting_ssa_edges, varying_ssa_edges): Remove.
        (cfg_blocks): Make a bitmap.
        (bb_to_cfg_order, cfg_order_to_bb, ssa_edge_worklist, uid_to_stmt):
        New globals.
        (cfg_blocks_empty_p): Adjust.
        (cfg_blocks_add): Likewise.
        (cfg_blocks_get): Likewise.
        (add_ssa_edge): Likewise.
        (add_control_edge): Likewise.
        (simulate_stmt): Likewise.
        (process_ssa_edge_worklist): Likewise.
        (simulate_block): Likewise.
        (ssa_prop_init): Compute PRE order and stmt UIDs.
        (ssa_prop_fini): Adjust.
        (ssa_propagate): Adjust.

2016-08-12  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (vrp_visit_phi_node): Allow a last iteration if
        the currently executable edges have fixed ranges.  Always
        go through update_value_range.

2016-08-12  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/63240
        * langhooks-def.h
        (LANG_HOOKS_FUNCTION_DECL_EXPLICIT_P): Const_tree-ify.
        (LANG_HOOKS_FUNCTION_DECL_DELETED_P): Likewise.
        (LANG_HOOKS_FUNCTION_DECL_DEFAULTED): Set default.
        (LANG_HOOKS_DECLS): Add it.
        * langhooks.h (struct lang_hooks_for_decls): Add
        function_decl_defaulted.  Const_tree-ify
        function_decl_explicit_p and function_decl_deleted_p.
        * dwarf2out.c (gen_subprogram_die): Add DW_AT_defaulted
        attribute.  Add DW_AT_deleted instead of DW_AT_GNU_deleted,
        also at strict DWARF v5.

        PR debug/55641
        * dwarf2out.c (decl_quals): Don't map TREE_READONLY to
        TYPE_QUAL_CONST in reference-typed decls.

        PR debug/49366
        * dwarf2out.c (loc_list_from_tree_1): Expand some CONSTRUCTORs
        in DW_OP_pieces, just enough to handle pointers to member
        functions.
        (gen_remaining_tmpl_value_param_die_attribute): Use a location
        expression on DWARFv5 if a constant value doesn't work.

2016-08-11  David Malcolm  <dmalcolm@redhat.com>

        * selftest-run-tests.c (selftest::run_tests): Call selftest_c_tests.
        * selftest.c (selftest::test_assertions): New function.
        (selftest::selftest_c_tests): New function.
        * selftest.h (selftest::selftest_c_tests): New declaration.

2016-08-11  Richard Biener  <rguenther@suse.de>
            Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR rtl-optimization/72855
        * df-core.c (df_verify): Turn off DF_VERIFY_SCHEDULED at end.

2016-08-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/72863
        * vsx.md (vsx_load_<mode>): For P8LE, emit swaps at expand time.
        (vsx_store_<mode>): Likewise.

2015-08-11  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (timode_scalar_to_vector_candidate_p): Allow
        TImode CONST_WIDE_INT store.
        (timode_scalar_chain::convert_insn): Handle CONST_WIDE_INT store.

2015-08-11  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.h (MOVE_MAX_PIECES): Use TImode in 64-bit
        mode if unaligned SSE load and store are optimal.

2016-08-11  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR tree-optimization/71083
        * tree-predcom.c (ref_at_iteration): Correctly align the
        reference type.

2016-08-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390-builtin-types.def: Add INT128 types.
        * config/s390/s390-builtins.def: Add INT128 variants for the add
        sub low-level builtins dealing with TImode.
        * config/s390/s390.c (s390_expand_builtin): Allow mode conversions
        via subreg when expanding a builtin.
        * config/s390/s390.md: Remove UNSPEC_VEC_ADDC_U128,
        UNSPEC_VEC_SUB_U128, and UNSPEC_VEC_SUBC_U128 constants.
        Fix comment.
        * config/s390/vecintrin.h: Adjust builtin names accordingly.
        * config/s390/vx-builtins.md ("vec_add_u128"): Remove expander.
        ("vec_addc<mode>", "vec_addc_u128"): Merge to
        "vacc<bhfgq>_<mode>".
        ("vec_adde_u128"): Rename to "vacq". Change mode to TImode.
        ("vec_addec_u128"): Rename to "vacccq". Change mode to TImode.
        ("vec_subc<mode>", "vec_subc_u128"): Merge to
        "vscbi<bhfgq>_<mode>".
        ("vec_sube_u128"): Rename to "vsbiq". Change mode to TImode.
        ("vec_subec_u128"): Rename to "vsbcbiq". Change mode to TImode.

2016-08-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390-builtins.def: Mark last operand of s390_vlvg*

2016-08-11  Bin Cheng  <bin.cheng@arm.com>

        * config/aarch64/aarch64-simd.md (vcond<mode><mode>): Delete
        unused declaration.
        (vcond<v_cmp_mixed><mode>): Ditto.
        (vcondu<mode><mode>, vcondu<mode><v_cmp_mixed>): Ditto.

2016-08-11  Bin Cheng  <bin.cheng@arm.com>

        * config/aarch64/aarch64-simd.md (vec_cmp<mode><v_cmp_result>): Init
        variable explicitly, also assert on it before use.

2016-08-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/72772
        * cfgloopmanip.c (create_preheader): Use split_edge if there
        is a single loop entry, avoiding degenerate PHIs.

2016-08-11  Richard Biener  <rguenther@suse.de>

        * tree-ssa-threadbackward.c (pass_data_thread_jumps): Remove
        unconditional TODO_cleanup_cfg.
        (pass_thread_jumps::execute): Initialize loops, perform a CFG
        cleanup only if we threaded a jump.

2016-08-11  Alan Modra  <amodra@gmail.com>

        PR target/71680
        * lra-constraints.c (simplify_operand_subreg): Allow subreg
        mode for mem when SLOW_UNALIGNED_ACCESS if inner mode is also
        slow.  Emit two reloads for slow mem case, first loading in
        fast innermode, then converting to required mode.

2016-08-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/altivec.h (vec_extract_exp): New macro.
        (vec_extract_sig): New macro.
        (vec_insert_exp): New macro.
        (vec_test_data_class): New macro.
        (scalar_extract_exp): New macro.
        (scalar_extract_sig): New macro.
        (scalar_insert_exp): New macro.
        (scalar_test_data_class): New macro.
        (scalar_test_neg): New macro.
        (scalar_cmp_exp_gt): New macro.
        (scalar_cmp_exp_lt): New macro.
        (scalar_cmp_exp_eq): New macro.
        (scalar_cmp_exp_unordered): New macro.
        * config/rs6000/predicates.md (u7bit_cint_operand): New predicate
        to enforce constraint that operand is a 7-bit unsigned literal.
        * config/rs6000/rs6000-builtin.def (BU_P9V_64BIT_VSX_1): New macro
        for power9 built-ins.
        (BU_P9V_VSX_2): Likewise.
        (BU_P9V_64BIT_VSX_2): Likewise.
        (VSEEDP): Add scalar extract exponent support.
        (VSEESP): Add scalar extract signature support.
        (VSTDCNDP): Add scalar test negative support.
        (VSTDCNSP): Likewise.
        (VSIEDP): Add scalar insert exponent support.
        (VSCEDPGT): Add scalar compare exponent greater than support.
        (VSCEDPLT): Add scalar compare exponent less than support.
        (VSCEDPEQ): Add scalar compare exponent test-for-equality support.
        (VSCEDPUO): Add scalar compare exponent test-for-unordered support.
        (VSTDCDP): Add scalar test data class support.
        (VSTDCSP): Likewise.
        (VSEEDP): Add overload support for scalar extract exponent
        operation.
        (VSESDP): Add overload support for scalar extract signature
        operation.
        (VSTDCN): Add overload support for scalar test negative
        operation.
        (VSTDCNDP): Add overload support for scalar test negative
        operation.
        (VSTDCNSP): Add overload support for scalar test negative
        operation.
        (VSIEDP): Add overload support for scalar insert exponent
        operation.
        (VSTDC): Add overload support for scalar test data class
        operation.
        (VSTDCDP): Add overload support for scalar test data class
        operation.
        (VSTDCSP): Add overload support for scalar test data class
        opreation.
        (VSCEDPGT): Add overload support for scalar compare exponent
        greater than operation.
        (VSCEDPLT): Add overload support for scalar compare exponent
        less than operation.
        (VSCEDPEQ): Add overload support for scalar compare exponent
        test-for-equality operation.
        (VSCEDPUO): Add overload support for scalar compare exponent
        test-for-unordered operation.
        (VEEDP): Add vector extract exponent support.
        (VEESP): Likewise.
        (VESDP): Add vector extract significand support.
        (VESSP): Likewise.
        (VIEDP): Add vector insert exponent support.
        (VIESP): Likewise.
        (VTDCDP): Add vector test data class support.
        (VTDCSP): Likewise.
        (VES): Add overload support for vector extract significand operation.
        (VESDP): Likewise.
        (VESSP): Likewise
        (VEE): Add overload support for vector extract exponent operation.
        (VEEDP): Likewise.
        (VEESP): Likewise.
        (VTDC): Add overload support for vector test data class operation.
        (VTDCDP): Likewise.
        (VTDCSP): Likewise.
        (VIE): Add overload support for vector insert exponent operation.
        (VIEDP): Likewise.
        (VIESP): Likewise.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        overloaded binary floating point functions.
        (altivec_resolve_overloaded_builtin): Improve error messages to
        distinguish between functions not supported in the current
        compiler configuration and functions that were invoked with an
        invalid parameter combination, and include the built-in function
        name in both error messages.
        * config/rs6000/rs6000-protos.h (rs6000_overloaded_builtin_name):
        New prototype.
        * config/rs6000/rs6000.c (rs6000_overloaded_builtin_name): New
        function.
        (rs6000_expand_binop_builtin): Add check to enforce that argument
        2 of the test data class operations is a 7-bit unsigned literal.
        (rs6000_invalid_builtin): Add code to issue an error message if a
        built-in function that requires the power9_vector and -m32
        command-line options is compiled without these options.
        * config/rs6000/vsx.md (UNSPEC_VSX_SXEXPDP): New value.
        (UNSPEC_VSX_SXSIGDP): New value.
        (UNSPEC_VSX_SXSIGPDP): New value.
        (UNSPEC_VSX_SIEXPDP): New value.
        (UNSPEC_VSX_SCMPEXPDP): New value.
        (UNSPEC_VSX_STSTDC): New value.
        (UNSPEC_VSX_VXEXP): New value.
        (UNSPEC_VSX_VXSIG): New value.
        (UNSPEC_VSX_VIEXP): New value.
        (UNSPEC_VSX_VTSTDC): New value.
        (xsxexpdp): New insn for scalar extract exponent.
        (xsxsigdp): New insn for scalar extract significand.
        (xsiexpdp): New insn for scalar insert exponent.
        (xscmpexpdp_<code>): New expansion for scalar compare exponents.
        (*xscmpexpdp): New insn for scalar compare exponents.
        (xststdc<Fvsx): New expansion for both single- and
        double-precision scalar test data class operations.
        (xststdcneg<Fvsx>): New expansion for both single- and
        double-precision scalar test for negative value operations.
        (*xststdc<Fvsx>): New insn for scalar test data class
        operation.
        (xvxexp<VSs>): New insn for single- and double-precision
        vector extract exponent operation.
        (xvxsig<VSs>): New insn for single- and double-precision
        vector extract significand operation.
        (xviexp<VSs>): New insn for single- and double-precision
        vector insert exponent operation.
        (xvtstdc<VSs>): New insn for single- and double-precision
        vector test data class operation.
        * doc/extend.texi (PowerPC AltiVec Built-in Functions): Document
        built-in functions to represent the Power9 binary floating-point
        support instructions.

2016-08-10  bin cheng  <bin.cheng@arm.com>

        * doc/sourcebuild.texi (@item vect_cond_mixed): New item.

2016-08-10  Alan Lawrence  <alan.lawrence@arm.com>
            Renlin Li  <renlin.li@arm.com>
            Bin Cheng  <bin.cheng@arm.com>

        * config/aarch64/iterators.md (V_cmp_mixed, v_cmp_mixed): New.
        * config/aarch64/aarch64-simd.md (<su><maxmin>v2di3): Call
        gen_vcondv2div2di instead of gen_aarch64_vcond_internalv2div2di.
        (aarch64_vcond_internal<mode><mode>): Delete pattern.
        (aarch64_vcond_internal<VDQF_COND:mode><VDQF:mode>): Ditto.
        (vcond<v_cmp_result><mode>): Ditto.
        (vcond<mode><mode>): Re-implement using vec_cmp and vcond_mask.
        (vcondu<mode><mode>): Ditto.
        (vcond<v_cmp_mixed><mode>): New pattern.
        (vcondu<mode><v_cmp_mixed>): New pattern.
        (aarch64_cmtst<mode>): Revise comment using aarch64_vcond instead
        of aarch64_vcond_internal.

2016-08-10  Alan Lawrence  <alan.lawrence@arm.com>
            Renlin Li  <renlin.li@arm.com>
            Bin Cheng  <bin.cheng@arm.com>

        * config/aarch64/aarch64-simd.md (vec_cmp<mode><mode>): New pattern.
        (vec_cmp<mode><v_cmp_result>): New pattern.
        (vec_cmpu<mode><mode>): New pattern.
        (vcond_mask_<mode><v_cmp_result>): New pattern.

2016-08-10  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR tree-optimization/71734
        * tree-ssa-loop-im.c (ref_indep_loop_p): Add new argument
        REF_LOOP, invoke ref_indep_loop_p_1.
        (outermost_indep_loop): Pass LOOP argumnet where REF was defined
        to ref_indep_loop_p.
        (ref_indep_loop_p_1): Fix commentary, add argument REF_LOOP,
        combine it with ref_indep_lopp_p_2, update SAFELEN if only REF
        is inside LOOP, do not cache dpendence value for loops with
        non-zero SAFELEN.
        (ref_indep_loop_p_2): Delete function.
        (can_sm_ref_p): Pass LOOP as additional argument to
        ref_indep_loop_p.

2016-08-10  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/72853
        * config/rs6000/rs6000.c (mem_operand_ds_form): Add check for op
        being an offsettable address.

2016-08-10  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/58306
        * tree-profile.c (gimple_init_edge_profiler): Create conditionally
        atomic variants of profile update functions.

2016-08-10  Martin Liska  <mliska@suse.cz>

        Cherry picked (and modified) from google-4_7 branch
        2012-12-26  Rong Xu  <xur@google.com>
        * common.opt (fprofile-update): Add new flag.
        * coretypes.h: Define enum profile_update.
        * doc/invoke.texi: Document -fprofile-update.
        * gcov-io.h: Declare GCOV_TYPE_ATOMIC_FETCH_ADD and
        GCOV_TYPE_ATOMIC_FETCH_ADD_FN.
        * tree-profile.c (gimple_init_edge_profiler): Generate
        also atomic profiler update.
        (gimple_gen_edge_profiler): Likewise.

2016-08-10  David Malcolm  <dmalcolm@redhat.com>

        * toplev.c (finalize): Set aux_info_file, asm_out_file, and
        stack_usage_file to NULL after fclose calls.

2016-08-10  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

        PR target/71873
        * reload.c (push_reload): Compute subreg_in_class for
        subregs of constants and plus expressions. Remove special
        handling of SYMBOL_REFs.

2016-08-10  Alan Modra  <amodra@gmail.com>

        PR target/71680
        * config/rs6000/rs6000.h (HARD_REGNO_CALLER_SAVE_MODE): Return
        SImode for TARGET_E500_DOUBLE when given SImode.

2016-08-09  David Wohlferd  <dw@LimeGreenSocks.com>

        * config/i3836/avx512fintrin.h (_mm512_cvtsepi64_epi32): Remove
        unused variable __O.

2016-08-09  Martin Liska  <mliska@suse.cz>

        * doc/gcov.texi: Change _gcov_dump to __gcov_dump and
        _gcov_reset to __gcov_reset.
        * doc/gcov-tool.texi: Fix typo.

2016-08-09  Martin Liska  <mliska@suse.cz>

        * value-prof.c (gimple_divmod_values_to_profile): Do not
        instrument MOD histogram if a value is not a SSA name.

2016-08-09  Martin Liska  <mliska@suse.cz>

        * value-prof.c (dump_histogram_value): Swap pow2 and non-pow2
        values.

2016-08-09  Renlin Li  <renlin.li@arm.com>

        PR middle-end/64971
        * calls.c (prepare_call_address): Convert funexp to Pmode when
        necessary.
        * config/aarch64/aarch64.md (sibcall): Remove fix for PR 64971.
        (sibcall_value): Likewise.

2016-08-09  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * cselib.c (cselib_expand_value_rtx_1): Add return.
        * gengtype.c (dbgprint_count_type_at): Likewise.
        * hsa-gen.c (gen_hsa_insn_for_internal_fn_call): Likewise.
        * reg-stack.c (get_true_reg): Restructure to avoid fallthrough warning.

2016-08-09  Martin Jambor  <mjambor@suse.cz>

        PR ipa/71981
        * ipa-polymorphic-call.c (get_dynamic_type): Bail out gracefully
        if instance is a MEM_REF.

2016-08-09  Uros Bizjak  <ubizjak@gmail.com>

        PR target/72843
        * config/i386/i386.md (*movtf_internal): Use
        lra_in_progress || reload_completed instead of !can_create_pseudo_p
        in the insn constraint.
        (*movxf_internal): Ditto.
        (*movdf_internal): Ditto.
        (*movsf_internal): Ditto.

2016-08-09  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/72772
        * tree-ssa-loop-niter.c (loop_exits_before_overflow): Check equality
        for expanded base.

2016-08-09  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/72772
        * tree-ssa-loop-niter.h (simplify_using_initial_conditions): Delete
        parameter STOP.
        * tree-ssa-loop-niter.c (tree_simplify_using_condition_1): Delete
        parameter STOP and update calls.  Move expand_simple_operations
        function call from here...
        (simplify_using_initial_conditions): ...to here.  Delete parameter
        STOP.
        (tree_simplify_using_condition): Delete parameter STOP.
        * tree-scalar-evolution.c (simple_iv_with_niters): Update call to
        simplify_using_initial_conditions.

2016-08-09  Matthew Fortune  <matthew.fortune@imgtec.com>

        PR c/65345
        * config/mips/mips.c (mips_atomic_assign_expand_fenv):
        Use create_tmp_var_raw instead of create_tmp_var.

2016-08-09  Richard Biener  <rguenther@suse.de>

        * tree-ssa-threadbackward.c (profitable_jump_thread_path):
        Treat same SSA names related.

2016-08-09  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/72824
        * tree-loop-distribution.c (const_with_all_bytes_same): Verify
        real_zerop is not negative.

2016-08-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71802
        * tree-cfgcleanup.c (cleanup_tree_cfg_bb): Make sure to catch
        all merge opportunities with the predecessor.

2016-08-09  Richard Biener  <rguenther@suse.de>

        PR ipa/68273
        * ipa-prop.c (ipa_modify_formal_parameters): Build
        parameter types with natural alignment also for the
        over-aligned case.

2016-08-08  Andi Kleen  <ak@linux.intel.com>

        * tree-vrp.c (get_single_symbol): Always initialize inv and neg.

2016-08-08  David Malcolm  <dmalcolm@redhat.com>

        PR c/64955
        * langhooks-def.h (LANG_HOOKS_RUN_LANG_SELFTESTS): New default
        do-nothing langhook.
        (LANG_HOOKS_INITIALIZER): Add LANG_HOOKS_RUN_LANG_SELFTESTS.
        * langhooks.h (struct lang_hooks): Add run_lang_selftests.
        * selftest-run-tests.c: Include "tree.h" and "langhooks.h".
        (selftest::run_tests): Call lang_hooks.run_lang_selftests.

2016-08-08  David Malcolm  <dmalcolm@redhat.com>

        PR bootstrap/72844
        * input.c: Ensure that HAVE_ICONV is defined.

2016-08-08  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/72781
        * omp-low.c (lower_lastprivate_clauses): Set TREE_NO_WARNING on the
        private vars for lastprivate and for linear iterator.

        PR middle-end/68762
        * omp-simd-clone.c: Include varasm.h.
        (simd_clone_create): Copy over DECL_COMDAT, DECL_WEAK, DECL_EXTERNAL,
        DECL_VISIBILITY, DECL_VISIBILITY_SPECIFIED, DECL_DLLIMPORT_P and for
        DECL_ONE_ONLY call make_decl_one_only.  Fix up spelling in comment and
        update function name.

2016-07-29  Pitchumani Sivanupandi  <pitchumani.s@atmel.com>

        * config/avr/driver-avr.c (specfiles_doc_url): Remove.
        (avr_diagnose_devicespecs_error): Remove.
        (avr_devicespecs_file): Remove composing absolute path for specfile
        and its verbose info. Remove conditions to check specs-file,

2016-08-08  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/72821
        * lra-spills.c (regno_in_use_p): Don't use BLOCK_FOR_INSN on barriers,
        just return false for them.

2016-08-08  Alan Modra  <amodra@gmail.com>

        PR target/72771
        * config/rs6000/rs6000.c (toc_relative_expr_p): Allow (lo_sum (high))
        toc refs created during reload.  Update function comment.

2016-08-08  Alan Modra  <amodra@gmail.com>

        PR target/72802
        * config/rs6000/rs6000.md (mov<mode>_hardfloat): Sort
        alternatives.  Put loads first, then stores, and reg/reg moves
        within same class later.  Delete attr length.

2016-08-08  Alan Modra  <amodra@gmail.com>

        PR target/72802
        * config/rs6000/rs6000.c (mem_operand_gpr): Remove vsx dform test.
        (mem_operand_ds_form): New predicate.
        * config/rs6000/rs6000-protos.h (mem_operand_ds_form): Declare.
        * config/rs6000/constraints.md (wY): Use mem_operand_df_form.
        * config/rs6000/predicates.md (offsettable_mem_14bit_operand): Delete.
        * config/rs6000/rs6000.md (f32_lm2, f32_sm2): Use wY for SF.
        (extendsfdf2_fpr): Replace o constraint with wY.

2016-08-07  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-threadbackward.c: Include tree-inline.h
        (profitable_jump_thread_path): Use estimate_num_insns to estimate
        size of copied block; for cold paths reduce duplication.
        (find_jump_threads_backwards): Remove redundant tests.
        (pass_thread_jumps::gate): Enable for -Os.

2016-08-07  Jakub Jelinek  <jakub@redhat.com>

        PR c/72816
        * stor-layout.c (layout_decl): Fix up formatting.
        (relayout_decl): Allow DECL to be FIELD_DECL.

2016-08-07  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.md (fix_trunc<mode>si2): Fix mode of reg.

2016-08-07  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * data-streamer-in.c (streamer_read_wide_int): New.
        (streamer_read_widest_int): Renamed function.
        * data-streamer-out.c (streamer_write_wide_int): New
        (streamer_write_widest_int): Renamed function.
        * lto-streamer-in.c (streamer_read_wi): Renamed and moved to
        data-stream-in.c.
        (input_cfg): Call renamed function.
        * lto-streamer-out.c (streamer_write_wi): Renamed and moved to
        data-stream-out.c.
        (output_cfg): Call renamed function.
        * data-streamer.h: Add declarations.

2016-08-08  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * tree-ssa-ccp.c (extend_mask): New param sgn.
        Remove ORing with wi::mask.
        (get_default_value): Adjust call to extend_mask to pass sign.
        (evaluate_stmt): Likewise.

2016-08-06  Jakub Jelinek  <jakub@redhat.com>

        * gcov.c (handle_cycle): Use INTTYPE_MAXIMUM (int64_t) instead of
        INT64_MAX.

2016-08-06  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * match.pd ((intptr_t) x eq/ne CST to x eq/ne (typeof x) cst): Disable
        transform if operand's type is pointer to function or method.

2016-08-05  Patrick Palka  <ppalka@gcc.gnu.org>

        PR tree-optimization/18046
        * tree-ssa-threadedge.c: Include cfganal.h.
        (simplify_control_statement_condition): If simplifying a
        GIMPLE_SWITCH, replace the index operand of the GIMPLE_SWITCH
        with the dominating ASSERT_EXPR before handing it off to VRP.
        Mention that a CASE_LABEL_EXPR may be returned.
        (thread_around_empty_blocks): Adjust to handle
        simplify_control_statement_condition() returning a
        CASE_LABEL_EXPR.
        (thread_through_normal_block): Likewise.
        * tree-vrp.c (simplify_stmt_for_jump_threading): Simplify
        a switch statement by trying to determine which case label
        will be taken.

2016-08-05  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/69847
        * lra-constraints.c (process_invariant_for_inheritance): Save
        pattern instead of src.
        (remove_inheritance_pseudos): Use the pattern.  Add assert.

2016-08-05  David Malcolm  <dmalcolm@redhat.com>

        * input.c (string_concat::string_concat): New constructor.
        (string_concat_db::string_concat_db): New constructor.
        (string_concat_db::record_string_concatenation): New method.
        (string_concat_db::get_string_concatenation): New method.
        (string_concat_db::get_key_loc): New method.
        (class auto_cpp_string_vec): New class.
        (get_substring_ranges_for_loc): New function.
        (get_source_range_for_substring): New function.
        (get_num_source_ranges_for_substring): New function.
        (class selftest::lexer_test_options): New class.
        (struct selftest::lexer_test): New struct.
        (class selftest::ebcdic_execution_charset): New class.
        (selftest::ebcdic_execution_charset::s_singleton): New variable.
        (selftest::lexer_test::lexer_test): New constructor.
        (selftest::lexer_test::~lexer_test): New destructor.
        (selftest::lexer_test::get_token): New method.
        (selftest::assert_char_at_range): New function.
        (ASSERT_CHAR_AT_RANGE): New macro.
        (selftest::assert_num_substring_ranges): New function.
        (ASSERT_NUM_SUBSTRING_RANGES): New macro.
        (selftest::assert_has_no_substring_ranges): New function.
        (ASSERT_HAS_NO_SUBSTRING_RANGES): New macro.
        (selftest::test_lexer_string_locations_simple): New function.
        (selftest::test_lexer_string_locations_ebcdic): New function.
        (selftest::test_lexer_string_locations_hex): New function.
        (selftest::test_lexer_string_locations_oct): New function.
        (selftest::test_lexer_string_locations_letter_escape_1): New function.
        (selftest::test_lexer_string_locations_letter_escape_2): New function.
        (selftest::test_lexer_string_locations_ucn4): New function.
        (selftest::test_lexer_string_locations_ucn8): New function.
        (selftest::uint32_from_big_endian): New function.
        (selftest::test_lexer_string_locations_wide_string): New function.
        (selftest::uint16_from_big_endian): New function.
        (selftest::test_lexer_string_locations_string16): New function.
        (selftest::test_lexer_string_locations_string32): New function.
        (selftest::test_lexer_string_locations_u8): New function.
        (selftest::test_lexer_string_locations_utf8_source): New function.
        (selftest::test_lexer_string_locations_concatenation_1): New
        function.
        (selftest::test_lexer_string_locations_concatenation_2): New
        function.
        (selftest::test_lexer_string_locations_concatenation_3): New
        function.
        (selftest::test_lexer_string_locations_macro): New function.
        (selftest::test_lexer_string_locations_stringified_macro_argument):
        New function.
        (selftest::test_lexer_string_locations_non_string): New function.
        (selftest::test_lexer_string_locations_long_line): New function.
        (selftest::test_lexer_char_constants): New function.
        (selftest::input_c_tests): Call the new test functions once per
        case within the line_table test matrix.
        * input.h (struct string_concat): New struct.
        (struct location_hash): New struct.
        (class string_concat_db): New class.
        * substring-locations.h: New header.

2016-08-05  Patrick Palka  <ppalka@gcc.gnu.org>

        PR tree-optimization/72810
        * tree-vrp.c (simplify_switch_using_ranges): Avoid changing
        the type of the case labels when truncating.

2016-08-05  James Greenhalgh  <james.greenhalgh@arm.com>

        PR Target/72819
        * config/aarch64/aarch64.h (aarch64_fp16_type_node): Declare.
        (aarch64_fp16_ptr_type_node): Likewise.
        * config/aarch64/aarch64-simd-builtins.c
        (aarch64_fp16_ptr_type_node): Define.
        (aarch64_init_fp16_types): New, refactored out of...
        (aarch64_init_builtins): ...here, update to call
        aarch64_init_fp16_types.
        * config/aarch64/aarch64.c (aarch64_gimplify_va_arg_expr): Handle
        HFmode.
        (aapcs_vfp_sub_candidate): Likewise.

2016-08-05  Martin Liska  <mliska@suse.cz>
            Joshua Cranmer  <Pidgeot18@gmail.com>

        * gcov.c (line_t::has_block): New function.
        (enum loop_type): New enum.
        (handle_cycle): New function.
        (unblock): Likewise.
        (circuit): Likewise.
        (get_cycles_count): Likewise.
        (accumulate_line_counts): Use new loop detection algorithm.

2016-08-05  Martin Liska  <mliska@suse.cz>

        * gcov.c (output_intermediate_file): Rename
        function_info::line_next to next_file_fn.
        (process_file): Likewise.
        (read_graph_file): Likewise.
        (accumulate_line_counts): Likewise.
        (output_lines): Likewise.

2016-08-05  Richard Biener  <rguenther@suse.de>

        * tree-ssa-threadupdate.c (thread_block_1): Remove unnecessary
        restriction on threading to a loop header.

2016-08-05  Richard Biener  <rguenther@suse.de>

        * tree-cfgcleanup.c (tree_forwarder_block_p): Use bb_loop_header_p.
        * cfghooks.c (force_nonfallthru): If we ended up splitting a latch
        adjust loop info accordingly.

2016-08-05  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * tree-vrp.c (extract_range_basic): Check cfun->after_inlining
        before folding call to __builtin_constant_p with parameters to false.

2016-08-05  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_preferred_reload_class): Delete
        code accidentally committed 2016-05-02 providing class when given
        NO_REGS.

2016-08-04  Patrick Palka  <ppalka@gcc.gnu.org>

        * tree-vrp.c (simplify_switch_using_ranges): Try to truncate
        the case label ranges that partially overlap with OP's value
        range.

2016-08-04  Uros Bizjak  <ubizjak@gmail.com>

        PR target/72805
        * config/i386/avx512fintrin.h (_mm512_cmp_epi32_mask) [!__OPTIMIZE__]:
        Cast builtin function result to __mmask16 instead of __mmask8.
        (_mm512_cmp_epu32_mask) [!__OPTIMIZE__]: Ditto.
        (_mm512_mask_cmp_epi32_mask) [!__OPTIMIZE__]: Ditto.
        (_mm512_mask_cmp_epu32_mask) [!__OPTIMIZE__]: Ditto.

2016-08-04  David Malcolm  <dmalcolm@redhat.com>

        * selftest.h (ASSERT_TRUE): Reimplement in terms of...
        (ASSERT_TRUE_AT): New macro.
        (ASSERT_FALSE): Reimplement in terms of...
        (ASSERT_FALSE_AT): New macro.
        (ASSERT_STREQ_AT): Fix typo in comment.

2016-08-04  Patrick Palka  <ppalka@gcc.gnu.org>

        * gimple.c (preprocess_case_label_vec_for_gimple): When the case
        labels are exhaustive, designate the label with the widest
        range to be the default label.

2016-08-04  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64.c (thunderx_vector_cost): New variable.
        (thunderx_tunings): Use thunderx_vector_cost instead of
        generic_vector_cost.

2016-08-04  Martin Liska  <mliska@suse.cz>

        * gcov.c (main): Fix GNU coding style.
        (output_intermediate_file): Likewise.
        (process_file): Likewise.
        (generate_results): Likewise.
        (release_structures): Likewise.
        (create_file_names): Likewise.
        (find_source): Likewise.
        (read_graph_file): Likewise.
        (find_exception_blocks): Likewise.
        (canonicalize_name): Likewise.
        (make_gcov_file_name): Likewise.
        (mangle_name): Likewise.
        (accumulate_line_counts): Likewise.
        (output_branch_count): Likewise.
        (read_line): Likewise.

2016-08-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR rtl-optimization/71779
        * emit-rtl.c (set_reg_attrs_from_value): Only propagate REG_POINTER,
        if the value was sign-extended according to POINTERS_EXTEND_UNSIGNED
        or if it was truncated.

        PR rtl-optimization/70903
        * cse.c (cse_insn): If DEST is a paradoxical SUBREG, don't record DEST.

2016-08-04  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * tree-inline.c (remap_ssa_name): Check for POINTER_TYPE_P before
        accessing SSA_NAME_PTR_INFO.

2016-08-04  Georg-Johann Lay  <avr@gjlay.de>

        PR 70677
        * common/config/avr/avr-common.c (avr_option_optimization_table)
        [OPT_LEVELS_ALL]: Turn off -fcaller-saves.

2016-08-04  Georg-Johann Lay  <avr@gjlay.de>

        PR 55181
        * config/avr/avr.md: New pattern to work around do_store_flag
        generating shift instructions for bit extractions.

2016-08-04  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * tree-vrp.c (set_value_range): Use vrp_equiv_obstack with
        BITMAP_ALLOC.
        (add_equivalence): Likewise.
        (get_value_range): Allocate value range with vrp_value_range_pool.
        (vrp_initialize): Initialize vrp_equiv_obstack for equiv allocation.
        (vrp_finalize): Relase vrp_equiv_obstack and vrp_value_range_pool.

2016-08-03  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_option_override_internal): Make LRA
        the default for the rs6000 port.

2016-08-03  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/71876
        * calls.c (special_function_p): Remove special handling of
        "setjmp_syscall", "qsetjmp", "longjmp", "siglongjmp" and the
        prefix "__x".  Recognize "savectx", "vfork" and "getcontext" only
        without prefix.  Remove potentially unsafe ECF_LEAF and ECF_NORETURN.

2016-08-03  Vladimir Makarov  <vmakarov@redhat.com>

        PR middle-end/72778
        * lra-spills.c (regno_in_use_p): Check bb and regno modification.
        Don't stop on regular insns.

2016-08-03  Nathan Sidwell  <nathan@codesourcery.com>

        * config/nvptx/nvptx.c (nvptx_declare_function_name): Round frame
        size to DImode boundary.
        (nvptx_propagate): Likewise.

2016-08-03  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.h (SLOW_UNALIGNED_ACCESS): Make scalar
        float access depend on TARGET_EFFICIENT_UNALIGNED_VSX.
        * config/rs6000/rs6000.opt (-mefficient-unaligned-vsx): Renamed
        from -mefficient-unaligned-vector.  Note that this affects fp too.

2016-08-03  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_rtx_costs): Make unaligned mem
        cost more.

2016-08-03  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.md (fix_trunc<mode>si2): Force source operand
        to a reg.  Localize vars.

2016-08-03  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.opt: Remove negatives from help strings
        and comments.

2016-08-03  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_secondary_reload_direct_move):
        Delete duplicated code.

2016-08-02  Vladimir Makarov  <vmakarov@redhat.com>

        PR middle-end/72778
        * lra-spills.c (regno_in_use_p): New.
        (lra_final_code_change): Use it.

2016-08-02  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/69847
        * lra-int.h (struct lra-reg): Use restore_rtx instead of
        restore_regno.
        (lra_rtx_hash): New.
        * lra.c (initialize_lra_reg_info_element): Use restore_rtx instead
        of restore_regno.
        (lra_rtx_hash): Rename and move lra-remat.c::rtx_hash.
        * lra-remat.c (rtx_hash): Rename and Move to lra.c.
        * lra-spills.c (lra_final_code_change): Don't delete insn when the
        next insn is USE with the same reg as the current insn source.
        * lra-constraints.c (curr_insn_transform): Use restore_rtx instead
        of restore_regno.
        (lra_constraints_init): Call initiate_invariants.
        (lra_constraints_finish): Call finish_invariants.
        (struct invariant, invariant_t, invariant_ptr_t): New.
        (const_invariant_ptr_t, invariants, invariants_pool): New.
        (invariant_table, invariant_hash, invariant_eq_p): New.
        (insert_invariant, initiate_invariants, finish_invariants): New.
        (clear_invariants, invalid_invariant_regs): New.
        (inherit_reload_reg, split_reg, fix_bb_live_info): Use restore_rtx
        instead of restore_regno.
        (invariant_p, process_invariant_for_inheritance): New.
        (inherit_in_ebb): Implement invariant inheritance.
        (lra_inheritance): Initialize and finalize invalid_invariant_regs.
        (remove_inheritance_pseudos): Implement undoing invariant
        inheritance.
        (undo_optional_reloads, lra_undo_inheritance): Use restore_rtx
        instead of restore_regno.
        * lra-assigns.c (regno_live_length): New.
        (reload_pseudo_compare_func): Use regno_live_length.
        (assign_by_spills): Use restore_rtx instead of restore_regno.
        (lra_assign): Ditto.  Initiate regno_live_length.

2016-02-08  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/arm_neon.h (vminnm_f64): Add back missing 'f' from
        __builtin_aarch64_fmindf.

2016-08-02  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/34114
        * tree-ssa-loop-niter.c (number_of_iterations_ne): Prove no-overflow
        information for more control IVs.

2016-08-02  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/34114
        * fold-const.c (multiple_of_p): Improve MULT_EXPR, PLUS_EXPR,
        PLUS_EXPR case.  Handle SSA_NAME case.

2016-08-02  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-simd-builtins.def
        (__builtin_aarch64_fmindf): Change BUILTIN_VDQF to BUILTIN_VDQF_DF.
        (__builtin_aarch64_fmaxdf): Likewise.
        (__builtin_aarch64_smin_nandf): Likewise.
        (__builtin_aarch64_smax_nandf): Likewise.
        * config/aarch64/aarch64-simd.md (<fmaxmin><mode>3): Remove.
        * config/aarch64/aarch64.md (<fmaxmin><mode>3): Rename to...
        (<fmaxmin><mode>3): ...this.
        * config/aarch64/arm_neon.h (vmaxnm_f64): New.
        (vminnm_f64): Likewise.
        (vmin_f64): Likewise.
        (vmax_f64): Likewise.
        * config/aarch64/iterators.md (FMAXMIN): Merge with...
        (FMAXMIN_UNS): ...this.
        (fmaxmin): Merged with
        (fmaxmin_op): ...this...
        (maxmin_uns_op): ...in to this.

2016-08-01  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        Add support for vec_extract on vector float, vector int, vector
        short, and vector char vector types.
        * config/rs6000/rs6000.c (rs6000_expand_vector_extract): Add
        vector float, vector int, vector short, and vector char
        optimizations on 64-bit ISA 2.07 systems for both constant and
        variable element numbers.
        (rs6000_split_vec_extract_var): Likewise.
        * config/rs6000/vsx.md (vsx_xscvspdp_scalar2): Allow SFmode to be
        Altivec registers on ISA 2.07 and above.
        (vsx_extract_v4sf): Delete alternative that hard coded element 0,
        which never was matched due to the split occuring before register
        allocation (and the code would not have worked on little endian
        systems if it did match).  Allow extracts to go to the Altivec
        registers if ISA 2.07 (power8).  Change from using "" around the
        C++ code to using {}'s.
        (vsx_extract_v4sf_<mode>_load): New insn to optimize vector float
        vec_extracts when the vector is in memory.
        (vsx_extract_v4sf_var): New insn to optimize vector float
        vec_extracts when the element number is variable on 64-bit ISA
        2.07 systems.
        (vsx_extract_<mode>, VSX_EXTRACT_I iterator): Add optimizations
        for 64-bit ISA 2.07 as well as ISA 3.0.
        (vsx_extract_<mode>_p9, VSX_EXTRACT_I iterator): Likewise.
        (vsx_extract_<mode>_p8, VSX_EXTRACT_I iterator): Likewise.
        (vsx_extract_<mode>_load, VSX_EXTRACT_I iterator): New insn to
        optimize vector int, vector short, and vector char vec_extracts
        when the vector is in memory.
        (vsx_extract_<mode>_var, VSX_EXTRACT_I iterator): New insn to
        optimize vector int, vector short, and vector char vec_extracts
        when the element number is variable.

2016-08-01  Georg-Johann Lay  <avr@gjlay.de>

        PR target/71948
        * config/avr/avr.c (AVR_SYMBOL_FLAG_TINY_PM): Use a value that
        does not overlap with other symbol flags.

2016-08-01  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.h (aarch64_frame):
        Remove padding0 and hardfp_offset.  Add locals_offset,
        initial_adjust, callee_adjust, callee_offset and final_adjust.
        * config/aarch64/aarch64.c (aarch64_layout_frame):
        Remove unused padding0 and hardfp_offset initializations.
        Choose frame layout and set frame variables accordingly.
        Use INVALID_REGNUM instead of FIRST_PSEUDO_REGISTER.
        (aarch64_push_regs): Use INVALID_REGNUM, not FIRST_PSEUDO_REGISTER.
        (aarch64_pop_regs): Likewise.
        (aarch64_expand_prologue): Remove all decision code, just emit
        prolog according to frame variables.
        (aarch64_expand_epilogue): Remove all decision code, just emit
        epilog according to frame variables.
        (aarch64_initial_elimination_offset): Use offset to local/arg area.

2015-08-01  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/72748
        * config/i386/i386.c (timode_scalar_chain::convert_insn): Call
        fix_debug_reg_uses after changing source register mode to
        V1TImode if source register is undefined.

2015-08-01  Alan Hayward  <alan.hayward@arm.com>

        PR tree-optimization/71818
        * tree-vect-loop-manip.c (vect_can_advance_ivs_p): Don't advance IVs
        with non invariant evolutions

2016-08-01  Georg-Johann Lay  <avr@gjlay.de>

        PR target/72767
        * config/avr/avr.md (length) [branch]: Correct insn length
        attribute for forward branches.

2016-08-01  Georg-Johann Lay  <avr@gjlay.de>

        * doc/extend.texi (AVR Built-in Functions): Document
        __builtin_avr_nops.
        * config/avr/builtins.def (NOPS): New.
        * config/avr/avr.c (avr_expand_nops): New static function.
        (avr_expand_builtin): Use it to handle AVR_BUILTIN_NOPS.

2016-08-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (aarch64_classify_address): Use DImode when
        performing aarch64_offset_7bit_signed_scaled_p check for TImode LDP/STP
        addresses.

2016-08-01  Virendra Pathak  <virendra.pathak@broadcom.com>

        * config/aarch64/aarch64.c (vulcan_tunings): Update
        vulcan L1 cache_line_size.

2016-07-30  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-protos.h (rs6000_adjust_vec_address): New
        function that takes a vector memory address, a hard register, an
        element number and a temporary base register, and recreates an
        address that points to the appropriate element within the vector.
        * config/rs6000/rs6000.c (rs6000_adjust_vec_address): Likewise.
        (rs6000_split_vec_extract_var): Add support for the target of a
        vec_extract with variable element number being a scalar memory
        location.
        (rtx_is_swappable_p): VLSO insns (UNSPEC_VSX_VSLOW) are not
        swappable.
        * config/rs6000/vsx.md (vsx_extract_<mode>_load): Replace
        vsx_extract_<mode>_load insn with a new insn that optimizes
        storing either element to a memory location, using scratch
        registers to pick apart the vector and reconstruct the address.
        (vsx_extract_<P:mode>_<VSX_D:mode>_load): Likewise.
        (vsx_extract_<mode>_store): Rework alternatives to more correctly
        support Altivec registers.  Add support for ISA 3.0 Altivec d-form
        store instruction.
        (vsx_extract_<mode>_var): Add support for extracting a variable
        element number from memory.

2016-07-29  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (avr_out_compare): Use const0_rtx instead of 0
        when testing for compares against constants of the form 0xabab.

2016-07-29  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/57558
        * tree-vect-loop-manip.c (vect_create_cond_for_niters_checks): New
        function.
        (vect_loop_versioning): Support versioning with niter assumptions.
        * tree-vect-loop.c (tree-ssa-loop.h): Include header file.
        (vect_get_loop_niters): New parameter.  Reimplement to support
        assumptions in loop niter info.
        (vect_analyze_loop_form_1, vect_analyze_loop_form): Ditto.
        (new_loop_vec_info): Init LOOP_VINFO_NITERS_ASSUMPTIONS.
        (vect_estimate_min_profitable_iters): Use LOOP_REQUIRES_VERSIONING.
        Support loop versioning for niters.
        * tree-vectorizer.c (tree-ssa-loop-niter.h): Include header file.
        (vect_free_loop_info_assumptions): New function.
        (vectorize_loops): Free loop niter info for loops with flag
        LOOP_F_ASSUMPTIONS set if vectorization failed.
        * tree-vectorizer.h (struct _loop_vec_info): New field
        num_iters_assumptions.
        (LOOP_VINFO_NITERS_ASSUMPTIONS): New macro.
        (LOOP_REQUIRES_VERSIONING_FOR_NITERS): New macro.
        (LOOP_REQUIRES_VERSIONING): New macro.
        (vect_free_loop_info_assumptions): New decl.

2016-07-29  Bin Cheng  <bin.cheng@arm.com>

        * cfgloop.h (struct loop): New field constraints.
        (LOOP_C_INFINITE, LOOP_C_FINITE): New macros.
        (loop_constraint_set, loop_constraint_clr, loop_constraint_set_p): New
        functions.
        * cfgloop.c (alloc_loop): Initialize new field.
        * cfgloopmanip.c (copy_loop_info): Copy constraints.
        * tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions):
        Adjust niter analysis wrto loop constraints.
        * doc/loop.texi (@node Number of iterations): Add description for loop
        constraints.

2016-07-29  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * config/i386/i386.c (ix86_expand_args_builtin): Add break.
        (ix86_expand_round_builtin): Likewise.

2016-07-29  Segher Boessenkool  <segher@kernel.crashing.org>
            Georg-Johann Lay  <avr@gjlay.de>

        PR rtl-optimization/71976
        * combine.c (get_last_value): Return 0 if the argument for which
        the function is called has a wider mode than the recorded value.

2016-07-29  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * config/rs6000/rs6000.c (altivec_expand_ld_builtin): Add break.
        (altivec_expand_st_builtin): Likewise.

2016-07-29  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (addqi3) [cc]: Revert glitch in insn attribute
        introduced in r238381.

2016-07-29  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/68217
        * tree-vrp.c (extract_range_from_binary_expr_1): In case of signed
        & sign-bit-CST, generate [-INF, 0] instead of [-INF, INF].

2016-07-28  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-protos.h (rs6000_split_vec_extract_var):
        New declaration.
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        Add support for vec_extract of vector double or vector long having
        a variable element number on 64-bit ISA 2.07 systems or newer.
        * config/rs6000/rs6000.c (rs6000_expand_vector_extract):
        Likewise.
        (rs6000_split_vec_extract_var): New function to split a
        vec_extract built-in function with variable element number.
        (rtx_is_swappable_p): Variable vec_extracts and shifts are not
        swappable.
        * config/rs6000/vsx.md (UNSPEC_VSX_VSLO): New unspec.
        (UNSPEC_VSX_EXTRACT): Likewise.
        (vsx_extract_<mode>, VSX_D iterator): Fix constraints to allow
        direct move instructions to be generated on 64-bit ISA 2.07
        systems and newer, and to take advantage of the ISA 3.0 MFVSRLD
        instruction.
        (vsx_vslo_<mode>): New insn to do VSLO on V2DFmode and V2DImode
        arguments for vec_extract variable element.
        (vsx_extract_<mode>_var, VSX_D iterator): New insn to support
        vec_extract with variable element on V2DFmode and V2DImode
        vectors.
        * config/rs6000/rs6000.h (TARGET_VEXTRACTUB): Remove
        -mupper-regs-df requirement, since it isn't needed.
        (TARGET_DIRECT_MOVE_64BIT): New macro to say whether we can
        do direct moves on 64-bit systems, which allows optimization of
        vec_extract on 64-bit ISA 2.07 systems and newer.

2016-07-28  Kristina Martsenko  <kristina.martsenko@arm.com>
2016-07-28  Wilco Dijkstra  <wdijkstr@arm.com>

         * config/aarch64/aarch64.md
        (zero_extend<SHORT:mode><GPI:mode>2_aarch64): Change output
        statement and type.
        (<optab>qihi2_aarch64): Likewise, and split into two.
        (extendqihi2_aarch64): New.
        (zero_extendqihi2_aarch64): New.
        * config/aarch64/iterators.md (ldrxt): Remove.
        * config/aarch64/aarch64.c (aarch64_rtx_costs): Change cost of
        uxtb/uxth.

2016-07-28  Kristina Martsenko  <kristina.martsenko@arm.com>

        * config/aarch64/aarch64.c (aarch64_rtx_costs): Fix cost of zero extend.

2016-07-28  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_pushwb_pair_reg): Rename.
        (aarch64_push_reg): New function to push 1 or 2 registers.
        (aarch64_pop_reg): New function to pop 1 or 2 registers.
        (aarch64_expand_prologue): Use aarch64_push_regs.
        (aarch64_expand_epilogue): Use aarch64_pop_regs.

2016-07-28  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR tree-optimization/71734
        * tree-ssa-loop-im.c (ref_indep_loop_p_1): Pass value of safelen
        attribute instead of REF_LOOP and use it.
        (ref_indep_loop_p_2): Use SAFELEN argument instead of REF_LOOP and
        set it for Loops having non-zero safelen attribute.
        (ref_indep_loop_p): Pass zero as initial value for safelen.

2016-07-28  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR middle-end/72657
        PR target/72683
        * tree-chkp.c (chkp_retbnd_call_by_val): Check for instrumentation
        call using chkp_gimple_call_builtin_p.
        (chkp_copy_bounds_for_assign): Likewise.

2016-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * config/alpha/alpha.c (alpha_adjust_cost): Adjust.
        * config/arm/arm-protos.h (struct tune_params): Likewise.
        * config/arm/arm.c (xscale_sched_adjust_cost): Likewise.
        (cortex_a9_sched_adjust_cost): Likewise.
        (fa726te_sched_adjust_cost): Likewise.
        (arm_adjust_cost): Likewise.
        * config/bfin/bfin.c (bfin_adjust_cost): Likewise.
        * config/c6x/c6x.c (c6x_adjust_cost): Likewise.
        * config/epiphany/epiphany.c (epiphany_adjust_cost): Likewise.
        * config/i386/i386.c (ix86_adjust_cost): Likewise.
        * config/ia64/ia64.c: Likewise.
        * config/m68k/m68k.c: Likewise.
        * config/mep/mep.c (mep_adjust_cost): Likewise.
        * config/microblaze/microblaze.c (microblaze_adjust_cost):
        * Likewise.
        * config/mips/mips.c (mips_adjust_cost): Likewise.
        * config/mn10300/mn10300.c (mn10300_adjust_sched_cost):
        * Likewise.
        * config/pa/pa.c (pa_adjust_cost): Likewise.
        * config/rs6000/rs6000.c (rs6000_adjust_cost): Likewise.
        (rs6000_debug_adjust_cost): Likewise.
        * config/sh/sh.c (sh_adjust_cost): Likewise.
        * config/sparc/sparc.c (supersparc_adjust_cost): Likewise.
        (hypersparc_adjust_cost): Likewise.
        (sparc_adjust_cost): Likewise.
        * config/spu/spu.c (spu_sched_adjust_cost): Likewise.
        * config/tilegx/tilegx.c (tilegx_sched_adjust_cost): Likewise.
        * config/tilepro/tilepro.c (tilepro_sched_adjust_cost):
        * Likewise.
        * config/visium/visium.c (visium_adjust_cost): Likewise.
        * doc/tm.texi: Regenerate.
        * haifa-sched.c (dep_cost_1): Adjust.
        * target.def: Merge adjust_cost and adjust_cost_2.

2016-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * haifa-sched.c (add_to_speculative_block): Make twins a vector.

2016-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * store-motion.c (struct st_expr): Make pattern_regs a vector.
        (extract_mentioned_regs): Append to a vector instead of
        returning a rtx_expr_list.
        (st_expr_entry): Adjust.
        (free_st_expr_entry): Likewise.
        (store_ops_ok): Likewise.
        (store_killed_in_insn): Likewise.
        (find_moveable_store): Likewise.

2016-07-28  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/68025
        * tree-profile.c (tree_profiling): Respect
        no_profile_instrument_function attribute.
        * doc/extend.texi: Document no_profile_instrument_function
        attribute.

2016-07-28  Martin Liska  <mliska@suse.cz>

        PR rtl-optimization/70944
        * combine.c (make_compound_operation):
        Do not allow make_compound_operation for vector mode

2016-07-28  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/71994
        * tree-ssa-reassoc.c (maybe_optimize_range_tests): Check tcc_comparison
         before calling get_ops.

2016-07-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * defaults.h (LOG2_BITS_PER_UNIT): Move from here...
        * tree.h (LOG2_BITS_PER_UNIT): ...to here.
        (BITS_PER_UNIT_LOG): Remove.
        (int_bit_position): Use LOG2_BITS_PER_UNIT instead of BITS_PER_UNIT_LOG.
        * expr.c (expand_assignment): Likewise.
        * stor-layout.c (initialize_sizetypes): Likewise.

2016-07-27  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/vector.md (vec_extract<mode>): Change the calling
        signature of rs6000_expand_vector_extract so that the element
        number is a RTX instead of a constant integer.
        * config/rs6000/rs6000-protos.h (rs6000_expand_vector_extract):
        Likewise.
        * config/rs6000/rs6000.c (rs6000_expand_vector_extract): Likewise.
        (altivec_expand_vec_ext_builtin): Likewise.
        * config/rs6000/altivec.md (reduc_plus_scal_<mode>): Likewise.
        * config/rs6000/vsx.md (vsx_extract_<mode>): Fix spelling of the
        MFVSRLD instruction.

2016-07-27  David Malcolm  <dmalcolm@redhat.com>

        * input.c (get_pure_location): Move here from tree.c.
        (make_location): Likewise.  Add header comment.
        (selftest::test_accessing_ordinary_linemaps): Verify
        pure_location_p, make_location, get_location_from_adhoc_loc and
        get_range_from_loc.
        * input.h (get_pure_location): Move declaration here from tree.h.
        (get_finish): Likewise for inline function.
        (make_location): Likewise for declaration.
        * tree.c (get_pure_location): Move to input.c.
        (make_location): Likewise.
        * tree.h (get_pure_location): Move declaration to tree.h.
        (get_finish): Likewise for inline function.
        (make_location): Likewise for declaration.

2016-07-27  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR middle-end/71078
        * match.pd (x / abs(x) -> copysign(1.0, x)): New pattern.

2016-07-27  David Malcolm  <dmalcolm@redhat.com>

        * system.h (STATIC_ASSERT): Use static_assert if building
        with C++11 onwards.

2016-07-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/72517
        * tree-vect-data-refs.c (vect_analyze_data_ref_dependences):
        Revert change to not compute read-read dependences.

2016-07-27  Richard Biener  <rguenther@suse.de>

        * predict.c (set_even_probabilities): Make nedges unsigned.

2016-07-27  Martin Liska  <mliska@suse.cz>

        * predict.c (set_even_probabilities): Handle unlikely edges.
        (combine_predictions_for_bb): Likewise.

2016-07-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/71869
        * config/rs6000/rs6000.c (rs6000_generate_compare): Rework
        __float128 support when we don't have hardware support, so that
        the IEEE built-in functions like isgreater, first call __unordkf3
        to make sure neither operand is a NaN, and if both operands are
        ordered, do the normal comparison.

2016-07-26  Patrick Palka  <ppalka@gcc.gnu.org>

        * tree-vrp.c (dump_asserts_for): Print loc->expr instead of
        name.
        (extract_code_and_val_from_cond_with_ops): Verify that name is
        either cond_op0 or cond_op1.

2016-07-26  Patrick Palka  <ppalka@gcc.gnu.org>

        PR tree-optimization/18046
        * genmodes.c (emit_mode_size_inline): Emit an assert that
        verifies that mode is a valid array index.
        (emit_mode_nuinits_inline): Likewise.
        (emit_mode_inner_inline): Likewise.
        (emit_mode_unit_size_inline): Likewise.
        (emit_mode_unit_precision_inline): Likewise.
        * tree-vrp.c: Include params.h.
        (find_switch_asserts): Register edge assertions for the default
        label which correspond to the anti-ranges of each case label.
        * params.def (PARAM_MAX_VRP_SWITCH_ASSERTIONS): New.
        * doc/invoke.texi: Document it.

2016-07-26  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * gimple-ssa-strength-reduction.c (slsr_process_phi): Remove dead
        and unnecessary call to gimple_bb.

2016-07-26  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/71984
        * simplify-rtx.c (simplify_subreg): Use GET_MODE_SIZE and prepare
        for VOIDmode.

2016-07-26  Richard Biener  <rguenther@suse.de>

        PR middle-end/72517
        * expmed.c (extract_bit_field_1): Constrain the vector mode
        with element size matching the extraction mode size when
        choosing a better vector mode to do the extraction from.

2016-07-26  Richard Biener  <rguenther@suse.de>
            Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR middle-end/70920
        * match.pd ((intptr)x eq/ne CST to x eq/ne (typeof x) CST): New
        pattern.

2016-07-26  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree-ssa-structalias.c (struct scc_info): Change types of
        members to auto_sbitmap and auto_vec.
        (scc_info::scc_info): New constructor.
        (scc_info::~scc_info): New destructor.
        (init_scc_info): Remove.
        (free_scc_info): Remove.
        (find_indirect_cycles): Adjust.
        (perform_var_substitution): Likewise.
        (free_var_substitution_info): Likewise.

2016-07-26  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree-outof-ssa.c (struct elim_graph): Change type of members
        to auto_vec and auto_sbitmap.
        (elim_graph::elim_graph): New constructor.
        (delete_elim_graph): Remove.
        (expand_phi_nodes): Adjust.

2016-07-26  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree-outof-ssa.c (struct elim_graph): Remove typedef.
        (new_elim_graph): Adjust.
        (clear_elim_graph): Likewise.
        (delete_elim_graph): Likewise.
        (elim_graph_size): Likewise.
        (elim_graph_add_node): Likewise.
        (elim_graph_add_edge): Likewise.
        (elim_graph_remove_succ_edge): Likewise.
        (eliminate_name): Likewise.
        (eliminate_build): Likewise.
        (elim_forward): Likewise.
        (elim_unvisited_predecessor): Likewise.
        (elim_backward): Likewise.
        (elim_create): Likewise.
        (eliminate_phi): Likewise.
        (expand_phi_nodes): Likewise.

2016-07-26  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * bt-load.c (compute_out): Use auto_sbitmap class.
        (link_btr_uses): Likewise.
        * cfganal.c (mark_dfs_back_edges): Likewise.
        (post_order_compute): Likewise.
        (inverted_post_order_compute): Likewise.
        (pre_and_rev_post_order_compute_fn): Likewise.
        (single_pred_before_succ_order): Likewise.
        * cfgexpand.c (pass_expand::execute): Likewise.
        * cfgloop.c (verify_loop_structure): Likewise.
        * cfgloopmanip.c (fix_bb_placements): Likewise.
        (remove_path): Likewise.
        (update_dominators_in_loop): Likewise.
        * cfgrtl.c (break_superblocks): Likewise.
        * ddg.c (check_sccs): Likewise.
        (create_ddg_all_sccs): Likewise.
        * df-core.c (df_worklist_dataflow): Likewise.
        * dse.c (dse_step3): Likewise.
        * except.c (eh_region_outermost): Likewise.
        * function.c (thread_prologue_and_epilogue_insns): Likewise.
        * gcse.c (prune_expressions): Likewise.
        (prune_insertions_deletions): Likewise.
        * gimple-ssa-backprop.c (backprop::~backprop): Likewise.
        * graph.c (draw_cfg_nodes_no_loops): Likewise.
        * ira-lives.c (remove_some_program_points_and_update_live_ranges): Likewise.
        * lcm.c (compute_earliest): Likewise.
        (compute_farthest): Likewise.
        * loop-unroll.c (unroll_loop_constant_iterations): Likewise.
        (unroll_loop_runtime_iterations): Likewise.
        (unroll_loop_stupid): Likewise.
        * lower-subreg.c (decompose_multiword_subregs): Likewise.
        * lra-lives.c: Likewise.
        * lra.c (lra): Likewise.
        * modulo-sched.c (schedule_reg_moves): Likewise.
        (optimize_sc): Likewise.
        (get_sched_window): Likewise.
        (sms_schedule_by_order): Likewise.
        (check_nodes_order): Likewise.
        (order_nodes_of_sccs): Likewise.
        (order_nodes_in_scc): Likewise.
        * recog.c (split_all_insns): Likewise.
        * regcprop.c (pass_cprop_hardreg::execute): Likewise.
        * reload1.c (reload): Likewise.
        * sched-rgn.c (haifa_find_rgns): Likewise.
        (split_edges): Likewise.
        (compute_trg_info): Likewise.
        * sel-sched.c (init_seqno): Likewise.
        * store-motion.c (remove_reachable_equiv_notes): Likewise.
        * tree-into-ssa.c (update_ssa): Likewise.
        * tree-ssa-live.c (live_worklist): Likewise.
        * tree-ssa-loop-im.c (fill_always_executed_in): Likewise.
        * tree-ssa-loop-ivcanon.c (try_unroll_loop_completely):
        * Likewise.
        (try_peel_loop): Likewise.
        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop):
        * Likewise.
        * tree-ssa-pre.c (compute_antic): Likewise.
        * tree-ssa-reassoc.c (undistribute_ops_list): Likewise.
        * tree-stdarg.c (reachable_at_most_once): Likewise.
        * tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Likewise.
        * var-tracking.c (vt_find_locations): Likewise.

2016-07-26  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * sbitmap.h (auto_sbitmap): New class.

2016-07-26  Alan Modra  <amodra@gmail.com>

        PR target/72103
        * config/rs6000/rs6000.c (rs6000_secondary_reload): Initialize
        sri->t_icode.

2016-07-25  David Malcolm  <dmalcolm@redhat.com>

        * input.c (selftest::temp_source_file::temp_source_file): Fix
        missing "%s" in fprintf.

2016-07-25  John David Anglin  <danglin@gcc.gnu.org>

        PR middle-end/71732
        * cselib.c (cselib_process_insn): Invalidate argument slots for
        const/pure calls.

2016-07-25  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/arm_neon.h (vfmah_lane_f16, vfmah_laneq_f16,
        vfmsh_lane_f16, vfmsh_laneq_f16, vmulh_lane_f16, vmulh_laneq_f16,
        vmulxh_lane_f16, vmulxh_laneq_f16): New.

2016-07-25  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-simd-builtins.def: Register new builtins.
        * config/aarch64/aarch64.md (fma, fnma): Support HF.
        * config/aarch64/arm_fp16.h (vfmah_f16, vfmsh_f16): New.

2016-07-25  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-simd-builtins.def: Register new builtins.
        * config/aarch64/aarch64.md (<FCVT_F2FIXED:fcvt_fixed_insn>hf<mode>3):
        New.
        (<FCVT_FIXED2F:fcvt_fixed_insn><mode>hf3): Likewise.
        (add<mode>3): Likewise.
        (sub<mode>3): Likewise.
        (mul<mode>3): Likewise.
        (div<mode>3): Likewise.
        (*div<mode>3): Likewise.
        (<fmaxmin><mode>3): Extend to HF.
        * config/aarch64/aarch64-simd.md (aarch64_rsqrts<mode>): Likewise.
        (fabd<mode>3): Likewise.
        (<FCVT_F2FIXED:fcvt_fixed_insn><VHSDF_HSDF:mode>3): Likewise.
        (<FCVT_FIXED2F:fcvt_fixed_insn><VHSDI_HSDI:mode>3): Likewise.
        (aarch64_fmulx<mode>): Likewise.
        (aarch64_fac<optab><mode>): Likewise.
        (aarch64_frecps<mode>): Likewise.
        (<FCVT_F2FIXED:fcvt_fixed_insn>hfhi3): New.
        (<FCVT_FIXED2F:fcvt_fixed_insn>hihf3): Likewise.
        * config/aarch64/iterators.md (VHSDF_SDF): Delete.
        (VSDQ_HSDI): Support HI.
        (fcvt_target, FCVT_TARGET): Likewise.
        * config/aarch64/arm_fp16.h (vaddh_f16, vsubh_f16, vabdh_f16,
        vcageh_f16, vcagth_f16, vcaleh_f16, vcalth_f16, vceqh_f16, vcgeh_f16,
        vcgth_f16, vcleh_f16, vclth_f16, vcvth_n_f16_s16, vcvth_n_f16_s32,
        vcvth_n_f16_s64, vcvth_n_f16_u16, vcvth_n_f16_u32, vcvth_n_f16_u64,
        vcvth_n_s16_f16, vcvth_n_s32_f16, vcvth_n_s64_f16, vcvth_n_u16_f16,
        vcvth_n_u32_f16, vcvth_n_u64_f16, vdivh_f16, vmaxh_f16, vmaxnmh_f16,
        vminh_f16, vminnmh_f16, vmulh_f16, vmulxh_f16, vrecpsh_f16,
        vrsqrtsh_f16): New.

2016-07-25  Jiong Wang  <jiong.wang@arm.com>

        * config.gcc (aarch64*-*-*): Install arm_fp16.h.
        * config/aarch64/aarch64-builtins.c (hi_UP): New.
        * config/aarch64/aarch64-simd-builtins.def: Register new builtins.
        * config/aarch64/aarch64-simd.md (aarch64_frsqrte<mode>): Extend to HF
        mode.
        (aarch64_frecp<FRECP:frecp_suffix><mode>): Likewise.
        (aarch64_cm<optab><mode>): Likewise.
        * config/aarch64/aarch64.md (<frint_pattern><mode>2): Likewise.
        (l<fcvt_pattern><su_optab><GPF:mode><GPI:mode>2): Likewise.
        (fix_trunc<GPF:mode><GPI:mode>2): Likewise.
        (sqrt<mode>2): Likewise.
        (*sqrt<mode>2): Likewise.
        (abs<mode>2): Likewise.
        (<optab><mode>hf2): New pattern for HF mode.
        (<optab>hihf2): Likewise.
        * config/aarch64/arm_neon.h: Include arm_fp16.h.
        * config/aarch64/iterators.md (GPF_F16, GPI_F16, VHSDF_HSDF): New.
        (w1, w2, v, s, q, Vmtype, V_cmp_result, fcvt_iesize, FCVT_IESIZE):
        Support HF mode.
        * config/aarch64/arm_fp16.h: New file.
        (vabsh_f16, vceqzh_f16, vcgezh_f16, vcgtzh_f16, vclezh_f16, vcltzh_f16,
        vcvth_f16_s16, vcvth_f16_s32, vcvth_f16_s64, vcvth_f16_u16,
        vcvth_f16_u32, vcvth_f16_u64, vcvth_s16_f16, vcvth_s32_f16,
        vcvth_s64_f16, vcvth_u16_f16, vcvth_u32_f16, vcvth_u64_f16,
        vcvtah_s16_f16, vcvtah_s32_f16, vcvtah_s64_f16, vcvtah_u16_f16,
        vcvtah_u32_f16, vcvtah_u64_f16, vcvtmh_s16_f16, vcvtmh_s32_f16,
        vcvtmh_s64_f16, vcvtmh_u16_f16, vcvtmh_u32_f16, vcvtmh_u64_f16,
        vcvtnh_s16_f16, vcvtnh_s32_f16, vcvtnh_s64_f16, vcvtnh_u16_f16,
        vcvtnh_u32_f16, vcvtnh_u64_f16, vcvtph_s16_f16, vcvtph_s32_f16,
        vcvtph_s64_f16, vcvtph_u16_f16, vcvtph_u32_f16, vcvtph_u64_f16,
        vnegh_f16, vrecpeh_f16, vrecpxh_f16, vrndh_f16, vrndah_f16, vrndih_f16,
        vrndmh_f16, vrndnh_f16, vrndph_f16, vrndxh_f16, vrsqrteh_f16,
        vsqrth_f16): New.

2016-07-25  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-simd-builtins.def (reduc_smax_scal_,
        reduc_smin_scal_): Use VDQIF_F16.
        (reduc_smax_nan_scal_, reduc_smin_nan_scal_): Use VHSDF.
        * config/aarch64/aarch64-simd.md (reduc_<maxmin_uns>_scal_<mode>):
        Use VHSDF.
        (aarch64_reduc_<maxmin_uns>_internal<mode>): Likewise.
        * config/aarch64/iterators.md (VDQIF_F16): New.
        (vp): Support HF modes.
        * config/aarch64/arm_neon.h (vmaxv_f16, vmaxvq_f16, vminv_f16,
        vminvq_f16, vmaxnmv_f16, vmaxnmvq_f16, vminnmv_f16, vminnmvq_f16): New.

2016-07-25  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-simd.md (*aarch64_mulx_elt_to_64v2df): Rename to
        "*aarch64_mulx_elt_from_dup<mode>".
        (*aarch64_mul3_elt<mode>): Update schedule type.
        (*aarch64_mul3_elt_from_dup<mode>): Likewise.
        (*aarch64_fma4_elt_from_dup<mode>): Likewise.
        (*aarch64_fnma4_elt_from_dup<mode>): Likewise.
        * config/aarch64/iterators.md (VMUL): Supprt half precision float modes.
        (f, fp): Support HF modes.
        * config/aarch64/arm_neon.h (vfma_lane_f16, vfmaq_lane_f16,
        vfma_laneq_f16, vfmaq_laneq_f16, vfma_n_f16, vfmaq_n_f16, vfms_lane_f16,
        vfmsq_lane_f16, vfms_laneq_f16, vfmsq_laneq_f16, vfms_n_f16,
        vfmsq_n_f16, vmul_lane_f16, vmulq_lane_f16, vmul_laneq_f16,
        vmulq_laneq_f16, vmul_n_f16, vmulq_n_f16, vmulx_lane_f16,
        vmulxq_lane_f16, vmulx_laneq_f16, vmulxq_laneq_f16): New.

2016-07-25  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-simd-builtins.def: Register new builtins.
        * config/aarch64/aarch64-simd.md (fma<mode>4, fnma<mode>4): Extend to HF
        modes.
        * config/aarch64/arm_neon.h (vfma_f16, vfmaq_f16, vfms_f16,
        vfmsq_f16): New.

2016-07-25  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-simd-builtins.def: Register new builtins.
        * config/aarch64/aarch64-simd.md
        (aarch64_rsqrts<mode>): Extend to HF modes.
        (fabd<mode>3): Likewise.
        (<FCVT_F2FIXED:fcvt_fixed_insn><VHSDF_SDF:mode>3): Likewise.
        (<FCVT_FIXED2F:fcvt_fixed_insn><VHSDI_SDI:mode>3): Likewise.
        (aarch64_<maxmin_uns>p<mode>): Likewise.
        (<su><maxmin><mode>3): Likewise.
        (<maxmin_uns><mode>3): Likewise.
        (<fmaxmin><mode>3): Likewise.
        (aarch64_faddp<mode>): Likewise.
        (aarch64_fmulx<mode>): Likewise.
        (aarch64_frecps<mode>): Likewise.
        (*aarch64_fac<optab><mode>): Rename to aarch64_fac<optab><mode>.
        (add<mode>3): Extend to HF modes.
        (sub<mode>3): Likewise.
        (mul<mode>3): Likewise.
        (div<mode>3): Likewise.
        (*div<mode>3): Likewise.
        * config/aarch64/aarch64.c (aarch64_emit_approx_div): Return false for
        HF, V4HF and V8HF.
        * config/aarch64/iterators.md (VDQ_HSDI, VSDQ_HSDI): New mode iterator.
        * config/aarch64/arm_neon.h (vadd_f16, vaddq_f16, vabd_f16, vabdq_f16,
        vcage_f16, vcageq_f16, vcagt_f16, vcagtq_f16, vcale_f16, vcaleq_f16,
        vcalt_f16, vcaltq_f16, vceq_f16, vceqq_f16, vcge_f16, vcgeq_f16,
        vcgt_f16, vcgtq_f16, vcle_f16, vcleq_f16, vclt_f16, vcltq_f16,
        vcvt_n_f16_s16, vcvtq_n_f16_s16, vcvt_n_f16_u16, vcvtq_n_f16_u16,
        vcvt_n_s16_f16, vcvtq_n_s16_f16, vcvt_n_u16_f16, vcvtq_n_u16_f16,
        vdiv_f16, vdivq_f16, vdup_lane_f16, vdup_laneq_f16, vdupq_lane_f16,
        vdupq_laneq_f16, vdups_lane_f16, vdups_laneq_f16, vmax_f16, vmaxq_f16,
        vmaxnm_f16, vmaxnmq_f16, vmin_f16, vminq_f16, vminnm_f16, vminnmq_f16,
        vmul_f16, vmulq_f16, vmulx_f16, vmulxq_f16, vpadd_f16, vpaddq_f16,
        vpmax_f16, vpmaxq_f16, vpmaxnm_f16, vpmaxnmq_f16, vpmin_f16, vpminq_f16,
        vpminnm_f16, vpminnmq_f16, vrecps_f16, vrecpsq_f16, vrsqrts_f16,
        vrsqrtsq_f16, vsub_f16, vsubq_f16): New.

2016-07-25  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-builtins.c (TYPES_BINOP_USS): New.
        * config/aarch64/aarch64-simd-builtins.def: Register new builtins.
        * config/aarch64/aarch64-simd.md (aarch64_rsqrte<mode>): Extend to HF modes.
        (neg<mode>2): Likewise.
        (abs<mode>2): Likewise.
        (<frint_pattern><mode>2): Likewise.
        (l<fcvt_pattern><su_optab><VDQF:mode><fcvt_target>2): Likewise.
        (<optab><VDQF:mode><fcvt_target>2): Likewise.
        (<fix_trunc_optab><VDQF:mode><fcvt_target>2): Likewise.
        (ftrunc<VDQF:mode>2): Likewise.
        (<optab><fcvt_target><VDQF:mode>2): Likewise.
        (sqrt<mode>2): Likewise.
        (*sqrt<mode>2): Likewise.
        (aarch64_frecpe<mode>): Likewise.
        (aarch64_cm<optab><mode>): Likewise.
        * config/aarch64/aarch64.c (aarch64_emit_approx_sqrt): Return false for
        HF, V4HF and V8HF.
        * config/aarch64/iterators.md (VHSDF, VHSDF_DF, VHSDF_SDF): New.
        (VDQF_COND, fcvt_target, FCVT_TARGET, hcon): Extend mode attribute to HF modes.
        (stype): New.
        * config/aarch64/arm_neon.h (vdup_n_f16): New.
        (vdupq_n_f16): Likewise.
        (vld1_dup_f16): Use vdup_n_f16.
        (vld1q_dup_f16): Use vdupq_n_f16.
        (vabs_f16, vabsq_f16, vceqz_f16, vceqzq_f16, vcgez_f16, vcgezq_f16,
        vcgtz_f16, vcgtzq_f16, vclez_f16, vclezq_f16, vcltz_f16, vcltzq_f16,
        vcvt_f16_s16, vcvtq_f16_s16, vcvt_f16_u16, vcvtq_f16_u16, vcvt_s16_f16,
        vcvtq_s16_f16, vcvt_u16_f16, vcvtq_u16_f16, vcvta_s16_f16,
        vcvtaq_s16_f16, vcvta_u16_f16, vcvtaq_u16_f16, vcvtm_s16_f16,
        vcvtmq_s16_f16, vcvtm_u16_f16, vcvtmq_u16_f16, vcvtn_s16_f16,
        vcvtnq_s16_f16, vcvtn_u16_f16, vcvtnq_u16_f16, vcvtp_s16_f16,
        vcvtpq_s16_f16, vcvtp_u16_f16, vcvtpq_u16_f16, vneg_f16, vnegq_f16,
        vrecpe_f16, vrecpeq_f16, vrnd_f16, vrndq_f16, vrnda_f16, vrndaq_f16,
        vrndi_f16, vrndiq_f16, vrndm_f16, vrndmq_f16, vrndn_f16, vrndnq_f16,
        vrndp_f16, vrndpq_f16, vrndx_f16, vrndxq_f16, vrsqrte_f16, vrsqrteq_f16,
        vsqrt_f16, vsqrtq_f16): New.

2016-07-25  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-simd.md
        (aarch64_<PERMUTE:perm_insn><PERMUTE:perm_hilo><mode>): Use VALL_F16.
        (aarch64_ext<mode>): Likewise.
        (aarch64_rev<REVERSE:rev_op><mode>): Likewise.
        * config/aarch64/aarch64.c (aarch64_evpc_trn, aarch64_evpc_uzp,
        aarch64_evpc_zip, aarch64_evpc_ext, aarch64_evpc_rev): Support V4HFmode
        and V8HFmode.
        * config/aarch64/arm_neon.h (__INTERLEAVE_LIST): Support float16x4_t,
        float16x8_t.
        (__aarch64_vdup_lane_f16, __aarch64_vdup_laneq_f16,
        __aarch64_vdupq_lane_f16, __aarch64_vdupq_laneq_f16, vbsl_f16,
        vbslq_f16, vdup_n_f16, vdupq_n_f16, vdup_lane_f16, vdup_laneq_f16,
        vdupq_lane_f16, vdupq_laneq_f16, vduph_lane_f16, vduph_laneq_f16,
        vext_f16, vextq_f16, vmov_n_f16, vmovq_n_f16, vrev64_f16, vrev64q_f16,
        vtrn1_f16, vtrn1q_f16, vtrn2_f16, vtrn2q_f16, vtrn_f16, vtrnq_f16,
        vuzp1_f16, vuzp1q_f16, vuzp2_f16, vuzp2q_f16, vzip1_f16, vzip2q_f16):
        New.
        (vmov_n_f16): Reimplement using vdup_n_f16.
        (vmovq_n_f16): Reimplement using vdupq_n_f16..

2016-07-25  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64.c (aarch64_add_constant): New parameter
        "frame_related_p".  Generate CFA annotation when it's necessary.
        (aarch64_expand_prologue): Use aarch64_add_constant.
        (aarch64_expand_epilogue): Likewise.
        (aarch64_output_mi_thunk): Pass "false" when calling
        aarch64_add_constant.

2016-07-25  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64.c (aarch64_add_constant): Optimize instruction
        sequences.

2016-07-25  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64.c (aarch64_add_constant): New parameter "mode".
        Use aarch64_internal_mov_immediate instead of aarch64_build_constant.
        (aarch64_output_mi_thunk): Pass Pmode when calling aarch64_add_constant.
        (aarch64_build_constant): Delete.

2016-07-25  Alexander Monakov  <amonakov@ispras.ru>

        Revert
        2016-07-20  Alexander Monakov  <amonakov@ispras.ru>

        * config/nvptx/nvptx.c (nvptx_option_override): Do not set
        flag_toplevel_reorder.

2016-07-25  Richard Biener  <rguenther@suse.de>

        * cgraph.c (cgraph_node::verify_node): Compare against builtin
        by using DECL_BUILT_IN_CLASS and DECL_FUNCTION_CODE.
        * tree-chkp.c (chkp_gimple_call_builtin_p): Likewise.
        * tree-streamer.h (streamer_handle_as_builtin_p): Remove.
        (streamer_get_builtin_tree): Likewise.
        (streamer_write_builtin): Likewise.
        * lto-streamer.h (LTO_builtin_decl): Remove.
        * lto-streamer-in.c (lto_read_tree_1): Remove assert.
        (lto_input_scc): Remove LTO_builtin_decl handling.
        (lto_input_tree_1): Liekwise.
        * lto-streamer-out.c (lto_output_tree_1): Remove special
        handling of builtins.
        (DFS::DFS): Likewise.
        * tree-streamer-in.c (streamer_get_builtin_tree): Remove.
        * tree-streamer-out.c (pack_ts_function_decl_value_fields): Remove
        assert.
        (streamer_write_builtin): Remove.

2016-07-25  Martin Liska  <mliska@suse.cz>

        * lto-cgraph.c (input_symtab): Don't call get_working_sets
        if flag_auto_profile is set to true.

2016-07-25  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/71868
        * cfgloopanal.c (expected_loop_iterations_unbounded): When we
        have a function with multiple latches, count them all.

2016-07-25  Martin Liska  <mliska@suse.cz>

        * tree-ssa-loop-niter.c (loop_only_exit_p): Release body array.

2016-07-25  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/71987
        * tree-ssa-reassoc.c (maybe_optimize_range_tests): Call get_ops
        just for SSA_NAMEs. Fix GNU coding style.

2016-07-25  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/64874
        * gcov-io.h: Update command about file format.
        * gcov-iov.c (main): Adapt the numbering scheme.

2016-07-24  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/66726
        * tree-ssa-reassoc.c (optimize_vec_cond_expr): Handle tcc_compare stmt
        whose result is used in PHI.
        (final_range_test_p): Likewise.
        (maybe_optimize_range_tests): Likewise.

2016-07-22  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        Reformat two multi-line strings.

2016-07-22  Martin Sebor  <msebor@redhat.com>

        * doc/extend.texi (Compound Literals): Add '@' missed in last commit.

2016-07-22  Martin Sebor  <msebor@redhat.com>

        PR c/71560
        * doc/extend.texi (Compound Literals): Correct and clarify.
        (Cast to Union): Same.

2016-07-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/rs6000.c (rs6000_option_override_internal): Add
        comments to explain why certain error messages make mention of
        undocumented options.
        (rs6000_invalid_builtin): Change error messages to replace mention
        of undocumented options with mention of the -mcpu=power9 option
        that enables those undocumented options.
        * config/rs6000/rs6000.h (MASK_FLOAT128): New macro.
        (RS6000_BTM_FLOAT128): Use the new MASK_FLOAT128 macro in the
        definition of this macro to correct an existing error.
        * config/rs6000/rs6000.opt: Add the Undocumented qualifier to the
        mpower9-fusion, mpower9-vector, mpower9-dform, and mmodulo entries.
        * doc/extend.texi (PowerPC AltiVec Built-in Functions): Modify
        descriptions of built-in functions so that they depend on
        -mcpu=power9 instead of on the corresponding undocumented flags.
        * doc/invoke.texi (Option Summary):  Remove all mention of newly
        undocumented flags.
        (IBM RS/6000 and PowerPC Options): Likewise.
        * doc/md.texi (Constraints for Particuliar Machines): Remove all
        mention of newly undocumented flags.

2016-07-22  Evgeny Stupachenko  <evstupac@gmail.com>

        * ipa-cp.c (determine_versionability): Do not create constprop clones,
        when target_clones attribute is set.

2016-07-22  Bin Cheng  <bin.cheng@arm.com>

        * common.opt (funsafe-loop-optimizations): Mark ignore.
        * doc/invoke.texi (funsafe-loop-optimizations): Remove.
        * loop-iv.c (get_simple_loop_desc): Remove unsafe-loop-optimizations
        related code.
        * tree-ssa-loop-niter.c (finite_loop_p): Ditto.
        * config/bfin/bfin.c (bfin_can_use_doloop_p): Ditto.

2016-07-22  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-niter.h (number_of_iterations_exit_assumptions): New
        Parameter.
        * tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions): New
        Parameter.
        (number_of_iterations_exit): Warn missed loop optimization for
        possible infinite loops.

2016-07-22  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/71216
        * config/rs6000/rs6000.c (rs6000_file_start): Fix condition for
        when to emit a ".machine" pseudo-op.

2016-07-22  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/69028
        PR gcov-profile/62047
        * coverage.c (coverage_compute_lineno_checksum): Do not
        calculate checksum for fns w/o xloc.file.
        (coverage_compute_profile_id): Likewise.

2016-07-22  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (TARGET_SECONDARY_RELOAD): Remove hook define...
        (avr_secondary_reload): ...and implementation.
        (avr_adjust_insn_length) [ADJUST_LEN_LPM]: Remove handling.
        * config/avr/avr.md (reload_in<mode>): Remove insns.
        (adjust_len) [lpm]: Remove insn attribute value.
        * config/avr/predicates.md (flash_operand): Remove insn predicate.

2016-07-21  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/71876
        * builtin-attrs.def (ATTR_RT_NOTHROW_LEAF_LIST): New return twice
        attribute.
        * builtins.def (BUILT_IN_SETJMP): Use ATTR_RT_NOTHROW_LEAF_LIST here.
        * calls.c (special_function_p): Remove the special handling of the
        "__builtin_" prefix.

2016-07-21  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/71876
        * calls.c (gimple_maybe_alloca_call_p): New function.  Return true
        if STMT may be an alloca call.
        (gimple_alloca_call_p, alloca_call_p): Return only true for the
        builtin alloca call.
        * calls.h (gimple_maybe_alloca_call_p): New function.
        * tree-inline.c (inline_forbidden_p_stmt): Use
        gimple_maybe_alloca_call_p here.

2016-07-21  David Malcolm  <dmalcolm@redhat.com>

        * spellcheck-tree.c (best_macro_match::best_macro_match):
        Explictly specify the template arguments when invoking the base
        class constructor, to help older C++ compilers.

2016-07-21  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/71953
        * asan.c (asan_dynamic_init_call): Call asan_init_shadow_ptr_types
        before builtin_decl_implicit.

2016-07-21  James Greenhalgh  <james.greenhalgh@arm.com>

        * optabs.c (emit_condiitonal_move): Short circuit for identical
        sources.

2016-07-21  James Greenhalgh  <james.greenhalgh@arm.com>

        * ifcvt.c (noce_if_info): New fields: speed_p, original_cost,
        max_seq_cost.  Removed fields: then_cost, else_cost, branch_cost.
        (noce_conversion_profitable_p): New.
        (noce_try_store_flag_constants): Use it.
        (noce_try_addcc): Likewise.
        (noce_try_store_flag_mask): Likewise.
        (noce_try_cmove): Likewise.
        (noce_try_cmove_arith): Likewise.
        (bb_valid_for_noce_process_p): Add to the cost parameter rather than
        overwriting it.
        (noce_convert_multiple_sets): Move cost model to here, from...
        (bb_ok_for_noce_convert_multiple_sets) ...here.
        (noce_process_if_block): Update calls for above changes.
        (noce_find_if_block): Record new noce_if_info parameters.

2016-07-21  James Greenhalgh  <james.greenhalgh@arm.com>

        * target.def (max_noce_ifcvt_seq_cost): New.
        * doc/tm.texi.in (TARGET_MAX_NOCE_IFCVT_SEQ_COST): Document it.
        * doc/tm.texi: Regenerate.
        * targhooks.h (default_max_noce_ifcvt_seq_cost): New.
        * targhooks.c (default_max_noce_ifcvt_seq_cost): New.
        * params.def (PARAM_MAX_RTL_IF_CONVERSION_PREDICTABLE_COST): New.
        (PARAM_MAX_RTL_IF_CONVERSION_UNPREDICTABLE_COST): Likewise.
        * doc/invoke.texi: Document new params.

2016-07-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71947
        * tree-vrp.c (extract_range_from_assert): Singleton symbolic
        ranges have useful limit_vr information.

2016-07-21  Richard Biener  <rguenther@suse.de>

        * function-tests.c (build_trivial_generic_function): Set
        BLOCK_SUPERCONTEXT of DECL_INITIAL.
        * omp-low.c (create_omp_child_function): Likewise.
        (grid_expand_target_grid_body): Likewise.
        * cgraphunit.c (init_lowered_empty_function): Likewise.
        (cgraph_node::expand_thunk): Likewise.
        * tree-parloops.c (create_loop_fn): Likewise.
        * ipa.c (cgraph_build_static_cdtor_1): Likewise.

2016-07-21  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * tree-ssa-strlen.c (strlen_dom_walker::before_dom_children): Fix typo
        in comment.

2016-07-21  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (any_extract, any_shiftrt): New code iterators.
        (*insv.extract, *insv.shiftrt, *insv.not-bit.0, *insv.not-bit.7)
        (*insv.xor-extract, *insv.xor1-bit.0): New insns.
        (adjust_len) [insv_notbit, insv_notbit_0, insv_notbit_7]: New
        values for insn attribute.
        * config/avr/avr.c (avr_out_insert_notbit): New function.
        (avr_adjust_insn_length): Handle ADJUST_LEN_INSV_NOTBIT,
        ADJUST_LEN_INSV_NOTBIT_0/_7.
        * config/avr/avr-protos.h (avr_out_insert_notbit): New proto.

2016-07-21  Bin Cheng  <bin.cheng@arm.com>

        * tree-chrec.c (convert_affine_scev): New parameter.  Pass new arg.
        (chrec_convert_1, chrec_convert): Ditto.
        * tree-chrec.h (chrec_convert, convert_affine_scev): New parameter.
        * tree-scalar-evolution.c (interpret_rhs_expr): Pass new arg.
        * tree-vrp.c (adjust_range_with_scev): Ditto.
        * tree-ssa-loop-niter.c (idx_infer_loop_bounds): Ditto.
        (scev_var_range_cant_overflow): New function.
        (scev_probably_wraps_p): New parameter.  Call above function.
        * tree-ssa-loop-niter.h (scev_probably_wraps_p): New parameter.

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.

2016-07-21  Jakub Jelinek  <jakub@redhat.com>

        * tree-object-size.c (unknown): Use HOST_WIDE_INT_M1U instead of -1.

2016-07-21  Andrew Sutton  <andrew.n.sutton@gmail.com>

        Improving concepts performance and diagnostics.
        * timevar.def (TV_CONSTRAINT_SAT, TV_CONSTRAINT_SUB): New time vars
        for constraint satisfaction and subsumption.
        * timevar.h (auto_timevar): New constructor that matches the push/pop
        pattern of usage in pt.c.

2016-07-20  Uros Bizjak  <ubizjak@gmail.com>

        * hwint.h (HOST_WIDE_INT_0): New define.
        (HOST_WIDE_INT_0U): Ditto.
        * double-int.c: Use HOST_WIDE_INT_0 instead of (HOST_WIDE_INT) 0.
        * dse.c: Use HOST_WIDE_INT_0U instead of (unsigned HOST_WIDE_INT) 0.
        * simplify-rtx.c: Ditto.
        * tree-object-size.c: Ditto.

2016-07-20  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_encode_section_info): Remove mode size
        check.

2016-07-20  Uros Bizjak  <ubizjak@gmail.com>

        * cse.c: Use HOST_WIDE_INT_M1 instead of ~(HOST_WIDE_INT) 0.
        * combine.c: Use HOST_WIDE_INT_M1U instead of
        ~(unsigned HOST_WIDE_INT) 0.
        * double-int.h: Ditto.
        * dse.c: Ditto.
        * dwarf2asm.c:Ditto.
        * expmed.c: Ditto.
        * genmodes.c: Ditto.
        * match.pd: Ditto.
        * read-rtl.c: Ditto.
        * tree-ssa-loop-ivopts.c: Ditto.
        * tree-ssa-loop-prefetch.c: Ditto.
        * tree-vect-generic.c: Ditto.
        * tree-vect-patterns.c: Ditto.
        * tree.c: Ditto.

2016-07-20  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr.c (avr_legitimize_address) [AVR_TINY]: Force
        constant addresses outside [0,0xc0] into a register.
        (avr_out_movhi_r_mr_reg_no_disp_tiny): Pass insn.  And handle
        cases where the base address register is unused after.
        (avr_out_movhi_r_mr_reg_disp_tiny): Same.
        (avr_out_movhi_mr_r_reg_disp_tiny): Same.
        (avr_out_store_psi_reg_disp_tiny): Same.

2016-07-20  Georg-Johann Lay  <avr@gjlay.de>

        Implement attribute progmem on reduced Tiny cores by adding
        flash offset 0x4000 to respective symbols.

        PR target/71948
        * doc/extend.texi (AVR Variable Attributes) [progmem]: Add
        documentation how it works on reduced Tiny cores.
        (AVR Named Address Spaces): No support for reduced Tiny.
        * config/avr/avr.c (AVR_SYMBOL_FLAG_TINY_PM): New macro.
        (avr_address_tiny_pm_p): New static function.
        (avr_print_operand_address) [AVR_TINY]: Add AVR_TINY_PM_OFFSET
        if the address is in progmem.
        (avr_assemble_integer): Same.
        (avr_encode_section_info) [AVR_TINY]: Set AVR_SYMBOL_FLAG_TINY_PM
        for symbol_ref in progmem.
        * config/avr/avr.h (AVR_TINY_PM_OFFSET): New macro.
        * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use it instead of
        magic 0x4000 when built-in def'ing __AVR_TINY_PM_BASE_ADDRESS__.

2016-07-20  Patrick Palka  <ppalka@gcc.gnu.org>

        * configure.ac (thin_archive_support): New variable.  AC_SUBST it.
        * configure: Regenerate.
        * Makefile.in (THIN_ARCHIVE_SUPPORT): New variable.
        (USE_THIN_ARCHIVES): New variable.
        (libbackend.a): If USE_THIN_ARCHIVES then pass T to ar to build
        this archive as a thin archive.

2016-07-20  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c (diagnostic_show_locus): If this is the
        same location as last time, don't skip if we have fix-it hints.
        Clarify the skipping logic by converting it from one "if" clause
        to repeated "if" clauses.
        * spellcheck-tree.c: Include "cpplib.h".
        (find_closest_macro_cpp_cb): Move here from c/c-decl.c.
        (best_macro_match::best_macro_match): New constructor.
        * spellcheck-tree.h (struct edit_distance_traits<cpp_hashnode *>):
        Move here from c/c-decl.c.
        (class best_macro_match): Move here from c/c-decl.c, converting
        from a typedef to a subclass, gaining a ctor.

2016-07-20  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-protos.h (avr_addr_space_supported_p): New prototype.
        * config/avr/avr.c (TARGET_ADDR_SPACE_DIAGNOSE_USAGE): New hook
        define...
        (avr_addr_space_diagnose_usage): ...and implementation.
        (avr_addr_space_supported_p): New function.
        (avr_nonconst_pointer_addrspace, avr_pgm_check_var_decl): Only
        report bad address space usage if that space is supported.
        (avr_insert_attributes): Same.  No more complain about unsupported
        address spaces.
        * config/avr/avr-c.c (tm_p.h): Include it.
        (avr_cpu_cpp_builtins): Only define addr-space related built-in
        macro if avr_addr_space_supported_p.

2016-07-20  Alexander Monakov  <amonakov@ispras.ru>

        * config/nvptx/nvptx.c (nvptx_option_override): Do not set
        flag_toplevel_reorder.

2016-07-20  David Malcolm  <dmalcolm@redhat.com>

        * gcc-rich-location.c
        (gcc_rich_location::add_fixit_misspelled_id): New overload, taking
        a const char *.
        * gcc-rich-location.h
        (gcc_rich_location::add_fixit_misspelled_id): Likewise.

2016-07-20  Georg-Johann Lay  <avr@gjlay.de>

        * target.def (addr_space): Add new diagnose_usage to hook vector.
        * targhooks.c (default_addr_space_diagnose_usage): Add default
        implementation and...
        * targhooks.h (default_addr_space_diagnose_usage): ... its prototype.
        * c/c-parser.c (c_lex_one_token) [CPP_NAME]: If the token
        is some address space, call targetm.addr_space.diagnose_usage.
        * doc/tm.texi.in (Named Address Spaces): Add anchor for
        TARGET_ADDR_SPACE_DIAGNOSE_USAGE documentation.
        * doc/tm.texi: Regenerate.

2016-07-20  Martin Liska  <mliska@suse.cz>

        PR middle-end/71898
        * graphite-isl-ast-to-gimple.c (later_of_the_two):
        Properly handly PHI stmts.

2016-07-20  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/71503
        PR tree-optimization/71683
        * tree-if-conv.c (gen_phi_arg_condition): Record true predicate
        and break.

2016-07-20  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi (-fipa-ra): Document when the option is
        disabled. Fix a typo.

2016-07-20  Martin Liska  <mliska@suse.cz>

        * Makefile.in: Include fibonacci_heap.c
        * fibonacci_heap.c: New file.
        * fibonacci_heap.h (fibonacci_heap::insert): Use insert_node.
        (fibonacci_heap::union_with): Fix deletion of the second heap.
        * selftest-run-tests.c (selftest::run_tests): Incorporate
        fibonacci heap tests.
        * selftest.h: Declare fibonacci_heap_c_tests.

2016-07-20  Martin Liska  <mliska@suse.cz>

        * selftest-run-tests.c (selftest::run_tests): New function.
        * selftest.h (sreal_c_tests): Declare.
        * sreal.c (sreal_verify_basics): New function.
        (verify_aritmetics): Likewise.
        (sreal_verify_arithmetics): Likewise.
        (verify_shifting): Likewise.
        (sreal_verify_shifting): Likewise.
        (void sreal_c_tests): Likewise.

2016-07-19  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/71916
        * cfgrtl.c (contains_no_active_insn_p): Return false also for
        bb which have a single succ fake edge.

2016-07-19  Aldy Hernandez  <aldyh@redhat.com>

        PR debug/71855
        * dwarf2out.c (gen_subprogram_die): Only call
        gen_unspecified_parameters_die while dumping early dwarf.

2016-07-19  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/71874
        * gimple-fold.c (fold_builtin_memory_op): Use
        get_addr_base_and_unit_offset instead of get_ref_base_and_extent.

2016-07-19  Uros Bizjak  <ubizjak@gmail.com>

        * builtins.c: Use HOST_WIDE_INT_1 instead of (HOST_WIDE_INT) 1,
        HOST_WIDE_INT_1U instead of (unsigned HOST_WIDE_INT) 1,
        HOST_WIDE_INT_M1 instead of (HOST_WIDE_INT) -1 and
        HOST_WIDE_INT_M1U instead of (unsigned HOST_WIDE_INT) -1.
        * combine.c: Ditto.
        * cse.c: Ditto.
        * dojump.c: Ditto.
        * double-int.c: Ditto.
        * dse.c: Ditto.
        * dwarf2out.c: Ditto.
        * expmed.c: Ditto.
        * expr.c: Ditto.
        * fold-const.c: Ditto.
        * function.c: Ditto.
        * fwprop.c: Ditto.
        * genmodes.c: Ditto.
        * hwint.c: Ditto.
        * hwint.h: Ditto.
        * ifcvt.c: Ditto.
        * loop-doloop.c: Ditto.
        * loop-invariant.c: Ditto.
        * loop-iv.c: Ditto.
        * match.pd: Ditto.
        * optabs.c: Ditto.
        * real.c: Ditto.
        * reload.c: Ditto.
        * rtlanal.c: Ditto.
        * simplify-rtx.c: Ditto.
        * stor-layout.c: Ditto.
        * toplev.c: Ditto.
        * tree-ssa-loop-ivopts.c: Ditto.
        * tree-vect-generic.c: Ditto.
        * tree-vect-patterns.c: Ditto.
        * tree.c: Ditto.
        * tree.h: Ditto.
        * ubsan.c: Ditto.
        * varasm.c: Ditto.
        * wide-int-print.cc: Ditto.
        * wide-int.cc: Ditto.
        * wide-int.h: Ditto.

2016-07-19  David Malcolm  <dmalcolm@redhat.com>

        * selftest.c (selftest::assert_streq): Handle NULL values of
        val_actual and val_expected.

2016-07-19  Martin Jambor  <mjambor@suse.cz>

        PR fortran/71688
        * trans-decl.c (gfc_generate_function_code): Use cgraph_get_create_node
        rather than cgraph_create_node to get a call graph node.

2016-07-19  Richard Biener  <rguenther@suse.de>

        * gimple-fold.c (get_base_constructor): Add VIEW_CONVERT case,
        handle all tcc_constant bases and valueize SSA names.
        * tree-ssa-sccvn.c (fully_constant_vn_reference_p): Handle
        tcc_constant bases.

2016-07-19  David Malcolm  <dmalcolm@redhat.com>

        * function-tests.c (selftest::verify_three_block_rtl_cfg): Verify
        the flags of the exit block and bb2, not just the entry block.

2016-07-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71901
        * tree-ssa-sccvn.h (struct vn_reference_op_struct): Add
        align member, group stuff with the bitfield.
        (vn_ref_op_align_unit): New inline.
        * tree-ssa-sccvn.c (copy_reference_ops_from_ref): For ARRAY_REFs
        record element alignment and operand 3 unchanged.
        (ao_ref_init_from_vn_reference): Adjust.
        (valueize_refs_1): Likewise.
        * tree-ssa-pre.c (create_component_ref_by_pieces_1): Likewise.

2016-07-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71908
        * tree-ssa-structalias.c (get_constraint_for_component_ref): Handle
        symbolic constants in a more reliable way.

2016-07-19  Ilya Enkovich  <ilya.enkovich@intel.com>

        * tree-vect-loop-manip.c (vect_update_ivs_after_vectorizer): Update
        comment.
        (vect_update_inits_of_drs): Likewise.
        (vect_create_cond_for_alias_checks): Likewise.
        * tree-vect-loop.c (vect_get_known_peeling_cost): Likewise.

2016-07-19  Richard Biener  <rguenther@suse.de>

        PR lto/71907
        * lto-streamer-out.c (DFS::DFS_write_tree_body): For blocks
        with an abstract origin that is not an inlined function outer
        scope add a self-reference as abstract origin.
        * tree-streamer-out.c (write_ts_block_tree_pointers): Likewise.

2016-07-18  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/71493
        * config/rs6000/rs6000.c (rs6000_function_value): Fix
        unintentional System V.4 structure return breakage for structures
        with a single floating point element.

2016-07-18  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR tree-optimization/71734
        * tree-ssa-loop-im.c (ref_indep_loop_p_1): Add REF_LOOP argument which
        contains REF, use it to check safelen, assume that safelen value
        must be greater 1, fix style.
        (ref_indep_loop_p_2): Add REF_LOOP argument.
        (ref_indep_loop_p): Pass LOOP as additional argument to
        ref_indep_loop_p_2.

2016-07-18  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * cfgexpand.c (expand_stack_vars): Implement synamic stack space
        allocation in the prologue.
        * explow.c (get_dynamic_stack_base): New function to return an address
        expression for the dynamic stack base.
        (get_dynamic_stack_size): New function to do the required dynamic stack
        space size calculations.
        (allocate_dynamic_stack_space): Use new functions.
        (align_dynamic_address): Move some code from
        allocate_dynamic_stack_space to new function.
        * explow.h (get_dynamic_stack_base, get_dynamic_stack_size): Export.

2016-07-18  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_encode_section_info): Always set
        notaligned marker if mode size is 0 or no MEM_ALIGN info could be
        found.

2016-07-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71893
        * tree-ssa-pre.c (create_component_ref_by_pieces_1): Compensate
        for sizetype cast added by array_ref_element_size.
        * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Likewise.

2016-07-16  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.c (hppa_profile_hook): Allocate stack space for
        register parameters.  Remove code to initialize argument pointer
        on TARGET_64BIT.  Optimize call to _mcount when it can be reached
        using a pc-relative branch.  Cleanup conditional code.
        * config/pa/pa.md (call_mcount): New expander.
        (call_mcount_nonpic): New insn.
        (call_mcount_pic): New insn and split.
        (call_mcount_pic_post_reload): New insn.
        (call_mcount_64bit): New insn and split.
        (call_mcount_64bit_post_reload): New insn.

2016-07-15  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/predicates.md (const_m255_to_m1_operand): New.
        * config/avr/constraints.md (Cn8, Ca1, Co1, Yx2): New constraints.
        * config/avr/avr.md (add<mode>3) <ALL1>: Fix set_vzn for +/-2.
        (*cmphi.zero-extend.0, *cmphi.zero-extend.1)
        (*usum_widenqihi3, *udiff_widenqihi3)
        (*addhi3_zero_extend.const): New combiner insns.
        (andqi3, iorqi3): Provide "l" (NO_LD_REGS) alternative if
        just 1 bit is affected.
        * config/avr/avr.c (avr_out_bitop) <QImode>: Don't access xop[3].
        (avr_out_compare) [EQ,NE]: Tweak comparing d-regs against -1.

2016-07-15  Cesar Philippidis  <cesar@codesourcery.com>

        * omp-low.c (lower_omp_target): Mark data clauses with
        GOMP_MAP_FORCE_{PRESENT,TO,FROM,TOFROM} as potentially having
        zero-length subarrays.

2016-07-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71881
        * tree-loop-distribution.c (destroy_loop): Remove blocks in
        reverse DOM order to make debug temp generation happy.

2016-07-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71887
        * tree-ssa-phiopt.c (absorbing_element_p): Add rhs arg and
        verify it is not zero for division / modulo handling.
        (value_replacement): Adjust.

2016-07-15  Virendra Pathak  <virendra.pathak@broadcom.com>
            Julian Brown  <julian@codesourcery.com>

        * config/aarch64/aarch64-cores.def: Update vulcan COSTS.
        * config/aarch64/aarch64-cost-tables.h
        (vulcan_extra_costs): New variable.
        * config/aarch64/aarch64.c
        (vulcan_addrcost_table): Likewise.
        (vulcan_regmove_cost): Likewise.
        (vulcan_vector_cost): Likewise.
        (vulcan_branch_cost): Likewise.
        (vulcan_tunings): Likewise.

2016-07-15  Alexander Monakov  <amonakov@ispras.ru>

        * cgraphunit.c (cgraph_order_sort_kind): New entry ORDER_VAR_UNDEF.
        (output_in_order): Loop over undefined variables too.  Output them
        via assemble_undefined_decl.  Skip variables that correspond to hard
        registers or have value-exprs.
        * varpool.c (symbol_table::output_variables): Handle undefined
        variables together with defined ones.

2016-07-15  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c (get_representative_for): Make sure to return
        the value number of SSA names.
        (phi_translate_1): get_representative_for cannot return NULL.
        (do_pre_regular_insertion): Remove redundant call to
        fully_constant_expression.
        (do_pre_partial_partial_insertion): Likewise.

2016-07-15  Bin Cheng  <bin.cheng@arm.com>

        * tree-scalar-evolution.c (simple_iv_with_niters): New funcion.
        (derive_simple_iv_with_niters): New function.
        (simple_iv): Rewrite using simple_iv_with_niters.
        * tree-scalar-evolution.h (simple_iv_with_niters): New decl.
        * tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions): New
        function.
        (number_of_iterations_exit): Rewrite using above function.
        * tree-ssa-loop-niter.h (number_of_iterations_exit_assumptions): New
        Decl.

2016-07-15  Richard Biener  <rguenther@suse.de>

        * config/i386/i386.c (ix86_builtin_vectorization_cost): Adjust
        vec_construct cost.

2016-07-14  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/71872
        * tree-data-ref.c (get_references_in_stmt): Ignore references
        with is_gimple_constant get_base_address.

2016-07-14  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.h (TARGET_HAVE_LDACQ): Enable for ARMv8-M Mainline.
        (TARGET_HAVE_LDACQD): New macro.
        * config/arm/sync.md (atomic_loaddi): Use TARGET_HAVE_LDACQD rather
        than TARGET_HAVE_LDACQ.
        (arm_load_acquire_exclusivedi): Likewise.
        (arm_store_release_exclusivedi): Likewise.

2016-07-14  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        PR rtl-optimization/71878
        * lra-constraints.c (match_reload): Pass information about other
        output operands.  Create new unique register value if matching input
        operand shares same register value as output operand being considered.
        (curr_insn_transform): Record output operands already processed.

2016-07-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/65951
        PR tree-optimization/70923
        * tree-vect-patterns.c: Include mult-synthesis.h.
        (target_supports_mult_synth_alg): New function.
        (synth_lshift_by_additions): Likewise.
        (apply_binop_and_append_stmt): Likewise.
        (vect_synth_mult_by_constant): Likewise.
        (target_has_vecop_for_code): Likewise.
        (vect_recog_mult_pattern): Use above functions to synthesize vector
        multiplication by integer constants.

2016-07-14  Alan Modra  <amodra@gmail.com>

        * config/rs6000/altivec.md (altivec_mov<mode>): Disparage
        gpr alternatives.  Correct '*' placement on Y,r alternative.
        Add '*' on operand 1 of r,r alternative.

2016-07-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * expmed.c (mult_variant, choose_mult_variant): Move declaration to...
        * expmed.h: ... Here.

2016-07-14  Jan Hubicka  <hubicka@ucw.cz>

        * gimple.h (stmt_can_terminate_bb_p): New function.
        * tree-cfg.c (need_fake_edge_p): Rename to ...
        (stmt_can_terminate_bb_p): ... this; return true if stmt can
        throw external; handle const and pure calls.
        * tree-ssa-loop-niter.c (loop_only_exit_p): Use it.

2016-07-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71866
        * tree-ssa-pre.c (get_constant_for_value_id): Remove.
        (do_hoist_insertion): Avoid endless recursion when we
        didn't insert anything because we managed to simplify
        things down to a constant or SSA name.
        (fully_constant_expression): Re-write in terms of ...
        * tree-ssa-sccvn.h (vn_nary_simplify): ... this.  Declare.
        * tree-ssa-sccvn.c (vn_nary_simplify): New wrapper around
        vn_nary_build_or_lookup_1.
        (vn_nary_build_or_lookup_1): Added flag and renamed from ...
        (vn_nary_build_or_lookup): ... this which now wraps it.

2016-07-14  Alan Modra  <amodra@gmail.com>

        PR target/71733
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Deal
        with p9_vector override before power9-dform override.

2016-07-13  Andi Kleen  <ak@linux.intel.com>

        * value-prof.c (gimple_value_profile_transformations): Don't run
        when auto_profile is on.

2016-07-13  Andi Kleen  <ak@linux.intel.com>

        * auto-profile.c (update_inlined_ind_target,
        afdo_indirect_call): Print information to dump file.

2016-07-13  Andrew Burgess  <andrew.burgess@embecosm.com>

        * genrecog.c (special_predicate_operand_p): New function.
        (predicate_name): Move function.
        (validate_pattern): Don't warn about missing mode for all
        define_special_predicate predicates.

2016-07-13  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-data-refs.c (vect_no_alias_p): New function.
        (vect_prune_runtime_alias_test_list): Call vect_no_alias_p to
        resolve alias checks which are known at compilation time.
        Truncate vector LOOP_VINFO_MAY_ALIAS_DDRS(loop_vinfo) if all
        alias checks are resolved.  Move dump info for too many runtime
        alias checks to here...
        * tree-vect-loop.c (vect_analyze_loop_2): ...From here.

2016-07-13  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/24574
        * tree-ssa-phiopt.c (absorbing_element_p): Pass in argument
        position and add shift, rotate, divison and modulo support
        for left zero.
        (value_replacement): Pass in argument position to absorbing_element_p.

2016-07-13  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR ipa/71633
        * ipa-inline-transform.c (inline_call): Support
        instrumented thunks.

2016-07-13  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.h (TARGET_HAVE_CBZ): Define.
        (TARGET_IDIV): Set for all Thumb targets provided they have hardware
        divide feature.
        * config/arm/arm.md (divsi3): New unpredicable alternative for ARMv8-M
        Baseline.  Make initial alternative TARGET_32BIT only.
        (udivsi3): Likewise.
        * config/arm/thumb1.md (thumb1_cbz): New define_insn.
        * doc/sourcebuild.texi (arm_thumb1_cbz_ok): Document new effective
        target.

2016-07-13  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.h (TARGET_HAVE_MOVT): Include ARMv8-M as having MOVT.
        * config/arm/arm.c (arm_arch_name): (const_ok_for_op): Check MOVT/MOVW
        availability with TARGET_HAVE_MOVT.
        (thumb_legitimate_constant_p): Strip the high part of a label_ref.
        (thumb1_rtx_costs): Also return 0 if setting a half word constant and
        MOVW is available and replace (unsigned HOST_WIDE_INT) INTVAL by
        UINTVAL.
        (thumb1_size_rtx_costs): Make set of half word constant also cost 1
        extra instruction if MOVW is available.  Use a cost variable
        incremented by COSTS_N_INSNS (1) when the condition match rather than
        returning an arithmetic expression based on COSTS_N_INSNS.  Make
        constant with bottom half word zero cost 2 instruction if MOVW is
        available.
        * config/arm/arm.md (define_attr "arch"): Add v8mb.
        (define_attr "arch_enabled"): Set to yes if arch value is v8mb and
        target is ARMv8-M Baseline.
        (arm_movt): New unpredicable alternative for ARMv8-M Baseline.
        (arm_movtas_ze): Likewise.
        * config/arm/thumb1.md (thumb1_movdi_insn): Add ARMv8-M Baseline only
        alternative for constants satisfying j constraint.
        (thumb1_movsi_insn): Likewise.
        (movsi splitter for K alternative): Tighten condition to not trigger
        if movt is available and j constraint is satisfied.
        (Pe immediate splitter): Likewise.
        (thumb1_movhi_insn): Add ARMv8-M Baseline only alternative for
        constant fitting in an halfword to use MOVW.
        * doc/sourcebuild.texi (arm_thumb1_movt_ok): Document new ARM
        effective target.

2016-07-13  Richard Biener  <rguenther@suse.de>

        PR middle-end/71104
        * gimplify.c (gimplify_modify_expr): Gimplify the RHS before
        gimplifying the LHS.  Make sure to gimplify a returning twice
        call LHS without using SSA names.

2016-07-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree-data-ref.c (find_data_references_in_stmt): Remove
        unnecessary call to vec::release.
        (graphite_find_data_references_in_stmt): Likewise.
        * tree-ssa-alias.c (nonoverlapping_component_refs_of_decl_p): Likewise.
        * tree-vect-stmts.c (vectorizable_condition): Likewise.

2016-07-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * cfgexpand.c (expand_used_vars): Make the type of a local
        variable auto_vec.
        * genmatch.c (lower_for): Likewise.
        * haifa-sched.c (haifa_sched_init): Likewise.
        (add_to_speculative_block): Likewise.
        (create_check_block_twin): Likewise.
        * predict.c (handle_missing_profiles): Likewise.
        * tree-data-ref.c (loop_nest_has_data_refs): Likewise.
        * tree-diagnostic.c (maybe_unwind_expanded_macro_loc): Likewise.
        * tree-ssa-loop-niter.c (discover_iteration_bound_by_body_walk):
        Likewise.
        (maybe_lower_iteration_bound): Likewise.
        * tree-ssa-sccvn.c (DFS): Likewise.
        * tree-stdarg.c (reachable_at_most_once): Likewise.
        * tree-vect-stmts.c (vectorizable_conversion): Likewise.
        (vectorizable_store): Likewise.

2016-07-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree-ssa-sccvn.c (sccvn_dom_walker::~sccvn_dom_walker): remove.
        (sccvn_dom_walker): make cond_stack an auto_vec.

2016-07-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * ree.c (struct ext_state): Make type of members auto_vec.
        (find_and_remove_re): Adjust.

2016-07-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * cfgexpand.c (struct stack_vars_data): Make type of fields
        auto_vec.
        (expand_used_vars): Adjust.

2016-07-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * ipa.c (record_cdtor_fn): Adjust.
        (build_cdtor_fns): Likewise.
        (ipa_cdtor_merge): Make static_ctors and static_dtors local
        variables.

2016-07-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * genextract.c (struct accum_extract): Add constructor and make
        members auto_vec.
        (gen_insn): Adjust.

2016-07-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * tree.c (struct free_lang_data_d): Add constructor and change
        types of members to ones that automatically manage resources.
        (fld_worklist_push): Adjust.
        (find_decls_types): Likewise.
        (find_decls_types_in_eh_region): Likewise.
        (free_lang_data_in_cgraph): Stop manually creating and
        destroying members of free_lang_data_d.

2016-07-13  Uros Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/68961
        * config/i386/sse.md (movsd/movhpd to movupd peephole2s): Add new
        peephole variant.  Use sse_reg_operand predicates.

2016-07-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (x86_64_immediate_operand)
        <case CONST_INT>: Remove unneeded truncation to DImode.
        <case CONST>: Ditto.
        (x86_64_zext_immediate_operand) <case CONST>: Ditto.

2016-07-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/71805
        * config/rs6000/altivec.md (altivec_vperm_<mode>_internal):
        The xxperm and xxpermr instructions require that the 2nd input
        operand overlap with the output operand, and not the 1st.
        (altivec_vperm_v8hiv16qi): Likewise.
        (altivec_vperm_<mode>_uns_internal): Likewise.
        (altivec_vpermr_<mode>_internal): Likewise.
        (vperm_v8hiv4si): Likewise.
        (vperm_v16qiv8hi): Likewise.

2016-07-12  Nathan Sidwell  <nathan@acm.org>

        * config/arm/arm.c (arm_option_override): Set MASK_SINGLE_PIC_BASE
        when -mno-pic-data-is-text-relative is in effect, by default.
        * doc/invoke.texi (mpic-data-is-text-relative): Document new
        behavior and clarify.

2016-07-12  Martin Liska  <mliska@suse.cz>

        * params.def: Add avg-loop niter.
        * tree-ssa-loop-ivopts.c (avg_loop_niter): Use the param.
        * cfgloopanal.c (expected_loop_iterations_unbounded): Likewise.
        * doc/invoke.texi: Document the new parameter.

2016-07-12  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR middle-end/71700
        * expr.c (store_constructor): Mask sign-extended bits when widening
        sub-word constructor element at the start of a word.

2016-07-12  Martin Liska  <mliska@suse.cz>

        * Makefile.in: Append rule for params-options.h.
        * params-options.h: New file.

2016-07-12  Martin Liska  <mliska@suse.cz>

        * ira-build.c (mark_loops_for_removal): Properly iterate
        loops.

2016-07-12  Steven Bosscher  <steven@gcc.gnu.org>
            Richard Biener  <rguenther@suse.de>

        PR tree-optimization/23286
        PR tree-optimization/70159
        * doc/invoke.texi: Document -fcode-hoisting.
        * common.opt (fcode-hoisting): New flag.
        * opts.c (default_options_table): Enable -fcode-hoisting at -O2+.
        * tree-ssa-pre.c (pre_stats): Add hoist_insert.
        (do_regular_insertion): Rename to ...
        (do_pre_regular_insertion): ... this and amend general comments
        on insertion strathegy.
        (do_partial_partial_insertion): Rename to ...
        (do_pre_partial_partial_insertion): ... this.
        (do_hoist_insertion): New function.
        (insert_aux): Take flags on whether to do PRE and/or hoist insertion
        and call do_hoist_insertion properly.
        (insert): Adjust.
        (pass_pre::gate): Enable also if -fcode-hoisting is enabled.
        (pass_pre::execute): Register hoist_insert stats.

2016-07-12  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/71716
        * gimple-fold.c (optimize_atomic_compare_exchange_p): Return false
        for SCALAR_FLOAT_TYPE_P type of expected var, or if TYPE_PRECISION
        is different from mode's bitsize.  Small cleanup.

2016-07-12  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/68961
        * fwprop.c (propagate_rtx): Allow SUBREGs of VEC_CONCAT and CONCAT
        to simplify to a non-constant.

2016-07-11  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/71758
        * omp-low.c (expand_omp_target): Gimplify device.

        PR tree-optimization/71823
        * tree-vect-stmts.c (vectorizable_operation): Use vect_get_vec_defs
        to get vec_oprnds2 from op2.

2016-07-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (x86_64_immediate_operand) <case CONST>:
        Hoist common subexpressions.
        (x86_64_zext_immediate_operand) <case CONST>: Ditto.

2016-07-11  Pat Haugen  <pthaugen@us.ibm.com>

        PR target/71800
        * config/rs6000/rs6000.md (stfiwx): Change constraint to 'wu' to
        prevent generation of 'stxsiwx' on pre Power8 hardware.

2016-07-11  David Malcolm  <dmalcolm@redhat.com>

        * input.c: Include cpplib.h.
        (selftest::temp_source_file): New class.
        (selftest::temp_source_file::temp_source_file): New ctor.
        (selftest::temp_source_file::~temp_source_file): New dtor.
        (selftest::should_have_column_data_p): New function.
        (selftest::test_should_have_column_data_p): New function.
        (selftest::temp_line_table): New class.
        (selftest::temp_line_table::temp_line_table): New ctor.
        (selftest::temp_line_table::~temp_line_table): New dtor.
        (selftest::test_accessing_ordinary_linemaps): Add case_ param; use
        it to create a temp_line_table.
        (selftest::assert_loceq): Only verify LOCATION_COLUMN for
        locations that are known to have column data.
        (selftest::line_table_case): New struct.
        (selftest::test_reading_source_line): Move tempfile handling
        to class temp_source_file.
        (ASSERT_TOKEN_AS_TEXT_EQ): New macro.
        (selftest::assert_token_loc_eq): New function.
        (ASSERT_TOKEN_LOC_EQ): New macro.
        (selftest::test_lexer): New function.
        (selftest::boundary_locations): New array.
        (selftest::input_c_tests): Call test_should_have_column_data_p.
        Loop over a test matrix of interesting values of location and
        default_range_bits, calling test_lexer on each case in the matrix.
        Move call to test_accessing_ordinary_linemaps into the matrix.
        * selftest.h (ASSERT_EQ): Reimplement in terms of...
        (ASSERT_EQ_AT): New macro.

2016-07-11  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/71801
        * config/i386/i386.c (timode_scalar_chain::fix_debug_reg_uses):
        Don't convert TImode in debug insn.

2016-07-11  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        Convert TYPE_ALIGN_OK to a TYPE_LANG_FLAG.
        * tree-core.h (tree_base::nothrow_flag): Adjust comment.
        (tree_type_common::lang_flag_7): New.
        (tree_type_common::spare): Reduce size.
        * tree.h (TYPE_ALIGN_OK): Remove.
        (TYPE_LANG_FLAG_7): New.
        (get_inner_reference): Adjust header.
        * print-tree.c (print_node): Adjust.
        * expr.c (get_inner_reference): Remove parameter keep_aligning.
        (get_bit_range, expand_assignment, expand_expr_addr_expr_1): Adjust
        calls to get_inner_reference.
        (expand_expr_real_1): Adjust call to get_inner_reference.  Remove
        handling of TYPE_ALIGN_OK.
        * builtins.c (get_object_alignment_2): Adjust call to
        get_inner_reference.  Remove handling of VIEW_CONVERT_EXPR.
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Remove handling of
        TYPE_ALIGN_OK.
        * asan.c (instrument_derefs): Adjust calls to get_inner_reference.
        * cfgexpand.c (expand_debug_expr): Likewise.
        * dbxout.c (dbxout_expand_expr): Likewise.
        * dwarf2out.c (loc_list_for_address_of_addr_expr_of_indirect_ref,
        loc_list_from_tree, fortran_common): Likewise.
        * fold-const.c (optimize_bit_field_compare,
        decode_field_reference, fold_unary_loc, fold_comparison,
        split_address_to_core_and_offset): Likewise.
        * gimple-laddress.c (execute): Likewise.
        * gimple-ssa-strength-reduction.c (slsr_process_ref): Likewise.
        * gimplify.c (gimplify_scan_omp_clauses): Likewise.
        * hsa-gen.c (gen_hsa_addr): Likewise.
        * simplifx-rtx.c (delegitimize_mem_from_attrs): Likewise.
        * tsan.c (instrument_expr): Likewise.
        * ubsan.c (instrument_bool_enum_load, instrument_object_size): Likewise.
        * tree.c (verify_type_variant): Remove handling of TYPE_ALIGN_OK.
        * tree-affine.c (tree_to_aff_combination,
        get_inner_reference_aff): Adjust calls to get_inner_reference.
        * tree-data-ref.c (split_constant_offset_1,
        dr_analyze_innermost): Likewise.
        * tree-scalar-evolution.c (interpret_rhs_expr): Likewise.
        * tree-sra.c (ipa_sra_check_caller): Likewise.
        * tree-ssa-loop-ivopts.c (split_address_cost): Likewise.
        * tree-ssa-math-opts.c (find_bswap_or_nop_load,
        bswap_replace): Likewise.
        * tree-vect-data-refs.c (vect_check_gather,
        vect_analyze_data_refs): Likewise.
        * config/mips/mips.c (r10k_safe_mem_expr_p): Likewise.
        * config/pa/pa.c (pa_emit_move_sequence): Remove handling of
        TYPE_ALIGN_OK.

2016-07-11  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (selftest-valgrind): New phony target.
        * function-tests.c (selftest::build_cfg): Delete pass instances
        created by the test.
        (selftest::convert_to_ssa): Likewise.
        (selftest::test_expansion_to_rtl): Likewise.
        * tree-cfg.c (selftest::test_linear_chain): Release dominator
        vectors.
        (selftest::test_diamond): Likewise.

2016-07-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71816
        * tree-ssa-pre.c (compute_avail): Adjust alignment of ref rather
        than replacing all of its operands.

2016-07-11  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.md (UNSPEC_DOLOOP): New unspec.
        (ctr<mode>): Add unspec.
        (ctr<mode>_internal*): Likewise.

2016-07-08  James Bowman  <james.bowman@ftdichip.com>

        * config/ft32/ft32.c (ft32_elf_encode_section_info): New function.
        * config/ft32/ft32.h (ASM_OUTPUT_SYMBOL_REF): New function.

2016-07-08  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/71621
        * lra-constraints.c (process_alt_operands): Check combination of
        reg class and mode.

2016-07-08  Jason Merrill  <jason@redhat.com>
            Richard Biener  <rguenther@suse.de>

        P0145: Refining Expression Order for C++.
        * gimplify.c (initial_rhs_predicate_for): New.
        (gimplfy_modify_expr): Gimplify RHS before LHS.

2016-07-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/71297
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        Allow standard error handling to take over when a wrong number
        of arguments is presented to __builtin_vec_ld () or
        __builtin_vec_st ().

2016-07-08  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-simd-builtins.def (smax): Remove float
        variants.
        (smin): Likewise.
        (fmax): New entry.
        (fmin): Likewise.
        * config/aarch64/arm_neon.h (vmaxnm_f32): Use
        __builtin_aarch64_fmaxv2sf.
        (vmaxnmq_f32): Likewise.
        (vmaxnmq_f64): Likewise.
        (vminnm_f32): Likewise.
        (vminnmq_f32): Likewise.
        (vminnmq_f64): Likewise.

2016-07-08  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/71806
        * config/rs6000/rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Do not
        enable -mfloat128-hardware by default.
        (ISA_3_0_MASKS_IEEE): New macro to give all of the VSX options
        that IEEE 128-bit hardware support needs.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): If
        -mcpu=power9 -mfloat128, enable -mfloat128-hardware by default.
        Use ISA_3_0_MASKS_IEEE as the set of options that IEEE 128-bit
        floating point requires.
        * doc/invoke.texi (RS/6000 and PowerPC Options): Document
        -mfloat128 and -mfloat128-hardware changes.

2016-07-08  Alan Hayward  <alan.hayward@arm.com>

        PR tree-optimization/71667
        * tree-vect-loop.c (vectorizable_live_operation): ignore DEBUG stmts

2016-07-08  Martin Liska  <mliska@suse.cz>

        PR middle-end/71606
        * fold-const.c (fold_convertible_p): As COMPLEX_TYPE
        folding produces SAVE_EXPRs, thus return false for the type.

2016-07-07  Martin Liska  <mliska@suse.cz>

        * file-find.c (remove_prefix): New function.
        * file-find.h (remove_prefix): Declare the function.
        * gcc-ar.c (main): Skip a folder of the wrapper if
        a wrapped binary would point to the same file.

2016-07-07  Jan Hubicka  <jh@suse.cz>

        * tree-scalar-evolution.c (iv_can_overflow_p): export.
        * tree-scalar-evolution.h (iv_can_overflow_p): Declare.
        * tree-ssa-loop-ivopts.c (alloc_iv): Use it.

2016-07-07  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR ipa/71624
        * ipa-inline-analysis.c (compute_inline_parameters): Set
        local.can_change_signature to false for intrumentation
        thunk callees.

2016-07-07  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.h (TARGET_USE_MOVT): Check MOVT/MOVW availability
        with TARGET_HAVE_MOVT.
        (TARGET_HAVE_MOVT): Define.
        * config/arm/arm.c (const_ok_for_op): Check MOVT/MOVW
        availability with TARGET_HAVE_MOVT.
        * config/arm/arm.md (arm_movt): Use TARGET_HAVE_MOVT to check MOVT
        availability.
        (addsi splitter): Use TARGET_THUMB && TARGET_HAVE_MOVT rather than
        TARGET_THUMB2.
        (symbol_refs movsi splitter): Remove TARGET_32BIT check.
        (arm_movtas_ze): Use TARGET_HAVE_MOVT to check MOVT availability.
        * config/arm/constraints.md (define_constraint "j"): Use
        TARGET_HAVE_MOVT to check MOVT availability.

2016-07-07  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-protos.h: Reindent FL_FOR_* macro definitions.

2016-07-07  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-arches.def (armv8-m.base): Define new architecture.
        (armv8-m.main): Likewise.
        (armv8-m.main+dsp): Likewise.
        * config/arm/arm-protos.h (FL_FOR_ARCH8M_BASE): Define.
        (FL_FOR_ARCH8M_MAIN): Likewise.
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/bpabi.h: Add armv8-m.base, armv8-m.main and
        armv8-m.main+dsp to BE8_LINK_SPEC.
        * config/arm/arm.h (TARGET_HAVE_LDACQ): Exclude ARMv8-M.
        (enum base_architecture): Add BASE_ARCH_8M_BASE and BASE_ARCH_8M_MAIN.
        * config/arm/arm.c (arm_arch_name): Increase size to work with ARMv8-M
        Baseline and Mainline.
        (arm_option_override_internal): Also disable arm_restrict_it when
        !arm_arch_notm.  Update comment for -munaligned-access to also cover
        ARMv8-M Baseline.
        (arm_file_start): Increase buffer size for printing architecture name.
        * doc/invoke.texi: Document architectures armv8-m.base, armv8-m.main
        and armv8-m.main+dsp.
        (mno-unaligned-access): Clarify that this is disabled by default for
        ARMv8-M Baseline architectures as well.

2016-07-07  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/elf.h: Use __ARM_ARCH_ISA_THUMB and __ARM_ARCH_ISA_ARM to
        decide whether to prevent some libgcc routines being included for some
        multilibs rather than __ARM_ARCH_6M__ and add comment to indicate the
        link between this condition and the one in
        libgcc/config/arm/lib1func.S.

2016-07-07  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c: Include alias.h.
        (compute_avail): If we have multiple VN_REFERENCEs with the
        same hashtable entry adjust that to make it a valid replacement
        for all of them with respect to alignment and aliasing
        when doing insertion.
        * tree-ssa-sccvn.h (vn_reference_operands_for_lookup): Declare.
        * tree-ssa-sccvn.c (vn_reference_operands_for_lookup): New function.

2016-07-06  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/70098
        PR target/71763
        * config/rs6000/rs6000.md (*ctr<mode>_internal1, *ctr<mode>_internal2,
        *ctr<mode>_internal5, *ctr<mode>_internal6): Add *wi to the output
        constraint.

2016-07-06  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * var-tracking.c (struct adjust_mem_data): Make side_effects a vector.
        (adjust_mems): Adjust.
        (adjust_insn): Likewise.
        (prepare_call_arguments): Likewise.

2016-07-06  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * gcse.c (struct ls_expr): Make stores field a vector.
        (ldst_entry): Adjust.
        (free_ldst_entry): Likewise.
        (print_ldst_list): Likewise.
        (compute_ld_motion_mems): Likewise.
        (update_ld_motion_stores): Likewise.

2016-07-06  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * gcse.c (struct ls_expr): Remove loads field.
        (ldst_entry): Adjust.
        (free_ldst_entry): Likewise.
        (print_ldst_list): Likewise.
        (compute_ld_motion_mems): Likewise.

2016-07-06  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * store-motion.c (struct st_expr): Make antic_stores a vector.
        (st_expr_entry): Adjust.
        (free_st_expr_entry): Likewise.
        (print_store_motion_mems): Likewise.
        (find_moveable_store): Likewise.
        (compute_store_table): Likewise.
        (remove_reachable_equiv_notes): Likewise.
        (replace_store_insn): Likewise.
        (build_store_vectors): Likewise.

2016-07-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/driver-arm.c (arm_cpu_table): Add entries for cortex-a32,
        cortex-a35, cortex-a53, cortex-a57, cortex-a72, cortex-a73.

2016-07-06  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR tree-optimization/71518
        * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Adjust
        misalign also for outer loops with negative step.

2016-07-06  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/cortex-a53.md: Use final_presence_set for in-order.
        (cortex_a53_shift): Add mov_shift.
        (cortex_a53_shift_reg): Add new reservation for register shifts.
        (cortex_a53_alu): Remove bfm.
        (cortex_a53_alu_shift): Add bfm, remove mov_shift.
        (cortex_a53_alu_extr): Add new reservation for EXTR.
        (bypasses): Improve bypass modelling.

2016-07-06  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

        PR target/50739
        * config/avr/avr.c (avr_asm_select_section): Strip off
        SECTION_DECLARED from flags when calling get_section.

2016-07-06  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vectorizer.h (vect_memory_access_type): Add
        VMAT_INVARIANT, VMAT_CONTIGUOUS_DOWN and VMAT_CONTIGUOUS_REVERSED.
        * tree-vect-stmts.c (compare_step_with_zero): New function.
        (perm_mask_for_reverse): Move further up file.
        (get_group_load_store_type): Stick to VMAT_ELEMENTWISE if the
        step is negative.
        (get_negative_load_store_type): New function.
        (get_load_store_type): Call it.  Add an ncopies argument.
        (vectorizable_mask_load_store): Update call accordingly and
        remove tests for negative steps.
        (vectorizable_store, vectorizable_load): Likewise.  Handle new
        memory_access_types.

2016-07-06  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vectorizer.h (vect_memory_access_type): New enum.
        (_stmt_vec_info): Add a memory_access_type field.
        (STMT_VINFO_MEMORY_ACCESS_TYPE): New macro.
        (vect_model_store_cost): Take an access type instead of a boolean.
        (vect_model_load_cost): Likewise.
        * tree-vect-slp.c (vect_analyze_slp_cost_1): Update calls to
        vect_model_store_cost and vect_model_load_cost.
        * tree-vect-stmts.c (vec_load_store_type): New enum.
        (vect_model_store_cost): Take an access type instead of a
        store_lanes_p boolean.  Simplify tests.
        (vect_model_load_cost): Likewise, but for load_lanes_p.
        (get_group_load_store_type, get_load_store_type): New functions.
        (vectorizable_store): Use get_load_store_type.  Record the access
        type in STMT_VINFO_MEMORY_ACCESS_TYPE.
        (vectorizable_load): Likewise.
        (vectorizable_mask_load_store): Likewise.  Replace is_store
        variable with vls_type.

2016-07-06  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vectorizer.h (vect_grouped_load_supported): Add a
        single_element_p parameter.
        * tree-vect-data-refs.c (vect_grouped_load_supported): Likewise.
        Check the PR65518 case here rather than in vectorizable_load.
        * tree-vect-loop.c (vect_analyze_loop_2): Update call accordignly.
        * tree-vect-stmts.c (vectorizable_load): Likewise.

2016-07-06  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vectorizer.h (gather_scatter_info): New structure.
        (vect_check_gather_scatter): Return a bool rather than a decl.
        Replace return-by-pointer arguments with a single
        gather_scatter_info *.
        * tree-vect-data-refs.c (vect_check_gather_scatter): Likewise.
        (vect_analyze_data_refs): Update call accordingly.
        * tree-vect-stmts.c (vect_mark_stmts_to_be_vectorized): Likewise.
        (vectorizable_mask_load_store): Likewise.  Also record the
        offset dt and vectype in the gather_scatter_info.
        (vectorizable_store): Likewise.
        (vectorizable_load): Likewise.

2016-07-06  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-stmts.c (vect_model_store_cost): For non-SLP
        strided groups, use the cost of N scalar accesses instead
        of ncopies vector accesses.
        (vect_model_load_cost): Likewise.

2016-07-06  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-stmts.c (vect_cost_group_size): Delete.
        (vect_model_store_cost): Avoid calling it.  Use first_stmt_p
        variable to indicate when once-per-group costs are being used.
        (vect_model_load_cost): Likewise.  Fix comment and misindented code.

2016-07-06  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-stmts.c (vectorizable_load): Remove unnecessary
        peeling-for-gaps condition.

2016-07-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_expand_vec_init): Force initializer
        element to register if it doesn't match general_operand.

2016-07-05  Michael Meissner  <meissner@linux.vnet.ibm.com>
            Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000-protos.h (rs6000_split_signbit): New
        prototype.
        * config/rs6000/rs6000.c (rs6000_split_signbit): New function.
        * config/rs6000/rs6000.md (UNSPEC_SIGNBIT): New constant.
        (SIGNBIT): New mode iterator.
        (Fsignbit): New mode attribute.
        (signbit<mode>2): Change operand1 to match FLOAT128 instead of
        IBM128; dispatch to gen_signbit{kf,tf}2_dm for __float128
        when direct moves are available.
        (signbit<mode>2_dm): New define_insn_and_split).
        (signbit<mode>2_dm2): New define_insn.

2016-07-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR rtl-optimization/71594
        * ifcvt.c (noce_convert_multiple_sets): Wrap new_val or old_val
        into subregs of appropriate mode before trying to emit a conditional
        move.

2016-07-05  Jan Hubicka  <jh@suse.cz>

        * tree-scalar-evolution.c (iv_can_overflow_p): New function.
        (simple_iv): Use it.

2016-07-05  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-loop-niter.c (nowrap_type_p): Use ANY_INTEGRAL_TYPE_P.

2016-07-05  Jiong Wang  <jiong.wang@arm.com>

        * lra-constraints.c (process_alt_operands): Don't add spilling cost for
        "offmemok".

2016-07-05  Jan Hubicka  <jh@suse.cz>

        * tree-scalar-evoluiton.c (simple_iv): Use nowrap_type to check if
        IV can overflow.

2016-07-05  Richard Biener  <rguenther@suse.de>

        * gimple-ssa-split-paths.c (find_block_to_duplicate_for_splitting_pa):
        Handle empty else block.
        (is_feasible_trace): Likewise.
        (split_paths): Likewise.

2016-07-05  Richard Biener  <rguenther@suse.de>

        * tree-loop-distribution.c (distribute_loop): Fix issue with
        the cost model loop.

2016-07-05  Christophe Lyon  <christophe.lyon@linaro.org>

        * config/arm/neon-testgen.ml: Delete.
        * config/arm/neon.ml: Delete.

2016-07-04  Jakub Jelinek  <jakub@redhat.com>

        PR c++/71739
        * tree.c (attribute_value_equal): Use get_attribute_name instead of
        directly using TREE_PURPOSE.

2016-07-04  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64.h: Rename "ARMv8.1" to "ARMv8.1-A".
        * config/aarch64/aarch64_neon.h: Likewise.
        * config/aarch64/arm_neon.h: Likewise.
        * config/aarch64/atomics.md: Likewise.
        * config/aarch64/aarch64-simd-builtins.def: Likewise.
        * doc/invoke.texi: Likewise.

2016-07-04  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/s390.md: Add "z13" cpu_facility.
        ("*mov<mode>cc"): Add support for z13 instructions lochi and locghi.
        * config/s390/predicates.md ("loc_operand"): New predicate for "load on
        condition" type instructions.

2016-07-04  Dominik Vogt  <vogt@linux.vnet.ibm.com>
            Jeff Law  <law@redhat.com>

        * explow.c (allocate_dynamic_stack_space): Simplify knowing that
        MUST_ALIGN was always true and extra_align ist always BITS_PER_UNIT.

2016-07-04  Yuri Rumyantsev  <ysrumyan@gmail.com>

        * config/i386/i386.c (ix86_expand_vec_perm): Add handle one-operand
        permutation for TARGET_AVX512F.
        (ix86_expand_vec_one_operand_perm_avx512): New function.
        (expand_vec_perm_1): Invoke introduced function.
        * tree-vect-loop.c (vect_transform_loop): Clear-up safelen value since
        it may be not valid after vectorization.

2016-07-04  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        PR target/63874
        * config/aarch64/aarch64.c (aarch64_classify_symbol): Fix
        typo in comment.  Only force to memory if it is a weak
        external reference.

2016-07-04  Matthew Wahab  <matthew.wahab@arm.com>
            Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-arches.def: Add "armv8.2-a".
        * config/aarch64/aarch64.h (AARCH64_FL_V8_2): New.
        (AARCH64_FL_F16): New.
        (AARCH64_FL_FOR_ARCH8_2): New.
        (AARCH64_ISA_8_2): New.
        (AARCH64_ISA_F16): New.
        (TARGET_FP_F16INST): New.
        (TARGET_SIMD_F16INST): New.
        * config/aarch64/aarch64-option-extensions.def ("fp16"): New entry.
        ("fp"): Disabling "fp" also disables "fp16".
        * config/aarch64/aarch64-c.c (arch64_update_cpp_builtins):
        Conditionally define __ARM_FEATURE_FP16_SCALAR_ARITHMETIC
        and __ARM_FEATURE_FP16_VECTOR_ARITHMETIC.
        * doc/invoke.texi (AArch64 Options): Document "armv8.2-a" and "fp16".

2016-07-04  Jan Beulich  <jbeulich@suse.com>

        * gcc.c (default_compilers["@c-header"]): Conditionalize "-o".

2016-07-01  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/71720
        * config/rs6000/vsx.md (vsx_splat_v4sf_internal): When splitting
        the insns, use an insn form that does not adjust the offset on
        little endian systems.

2016-07-01  Jan Beulich  <jbeulich@suse.com>

        * varasm.c (get_variable_section): Validate initializer in
        named .bss-like sections.

2016-07-01  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/altivec.md (*altivec_vpermr_<mode>_internal):
        Exchange the order of the second and third operands in the vpermr
        instruction tmeplate.

2016-07-01  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/71698
        * config/rs6000/rs6000.c (rs6000_secondary_reload_simple_move):
        Disallow TDmode values.

2016-07-01  Alan Modra  <amodra@gmail.com>

        PR rtl-optimization/71709
        * ira-lives.c (find_call_crossed_cheap_reg): Exit loop on arg reg
        being set, not referenced.

2016-07-01  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR tree-optimization/70729
        * tree-vectorizer.c (adjust_simduid_builtins): Nullify safelen field
        of loop since it can be not valid after transformation.

2016-07-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.c (thumb_reload_in_hi): Delete.
        * config/arm/arm-protos.h (thumb_reload_in_hi): Delete prototype.

2016-07-01  Eric Botcazou  <ebotcazou@adacore.com>

        * config/arm/arm.c (arm_function_ok_for_sibcall): Add another check
        for NULL decl.

2016-06-30  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/71677
        * config/rs6000/constraints.md (wY constraint): New constraint to
        match the requirements for the LXSD and STXSD instructions.
        * config/rs6000/predicates.md (offsettable_mem_14bit_operand): New
        predicate to match the requirements for the LXSD and STXSD
        instructions.
        * config/rs6000/rs6000.md (mov<mode>_hardfloat32, FMOVE64 case):
        Use constaint wY for LXSD/STXSD instructions instead of 'o' or 'Y'
        to make sure that the bottom 2 bits of offset are 0, the address
        form is offsettable, and no updating is done in the address mode.
        (mov<mode>_hardfloat64, FMOVE64 case): Likewise.
        (movdi_internal32): Likewise
        (movdi_internal64): Likewise.

2016-06-30  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/71707
        * tree-ssa-strlen.c (get_stridx_plus_constant): Handle already present
        strinfo even for ADDR_EXPR ptr.

2016-06-30  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/altivec.md (darn_32): Change the condition to
        TARGET_P9_MISC instead of TARGET_MODULO.
        (darn_raw): Replace TARGET_MODULO with TARGET_P9_MISC in the
        condition expression.
        (darn): Replace TARGET_MODULO with TARGET_P9_MISC in the
        condition expression.
        * config/rs6000/dfp.md (UNSPEC_DTSTSFI): New unspec constant.
        (DFP_TEST): New code iterator.
        (dfptstsfi_<code>_mode>): New define_expand.
        (*dfp_sgnfcnc_<mode>): New define_insn.
        * config/rs6000/rs6000-builtin.def (BU_P9_MISC_0): Move this macro
        definition next to BU_P9_MISC_1 definition and change the MASK
        value to RS6000_BTM_P9_MISC.
        (BU_P9_MISC_1): Change the MASK value to RS6000_BTM_P9_MISC.
        (BU_P9_64BIT_MISC_0): Likewise.
        (BU_P9_DFP_MISC_0): New macro definition.
        (BU_P9_DFP_MISC_1): New macro definition.
        (BU_P9_DFP_MISC_2): New macro definition.
        (BU_P9_DFP_OVERLOAD_1): New macro definition.
        (BU_P9_DFP_OVERLOAD_2): New macro definition.
        (BU_P9_DFP_OVERLOAD_3): New macro definition.
        (TSTSFI_LT_DD): New BU_P9_DFP_MISC_2.
        (TSTSFI_LT_TD): Likewise.
        (TSTSFI_EQ_DD): Likewise.
        (TSTSFI_EQ_TD): Likewise.
        (TSTSFI_GT_DD): Likewise.
        (TSTSFI_GT_TD): Likewise.
        (TSTSFI_OV_DD): Likewise.
        (TSTSFI_OV_TD): Likewise.
        (TSTSFI_LT): New BU_P9_DFP_OVERLOAD_2.
        (TSTSFI_LT_DD): Likewise.
        (TSTSFI_LT_TD): Likewise.
        (TSTSFI_EQ): Likewise.
        (TSTSFI_EQ_DD): Likewise.
        (TSTSFI_EQ_TD): Likewise.
        (TSTSFI_GT): Likewise.
        (TSTSFI_GT_DD): Likewise.
        (TSTSFI_GT_TD): Likewise.
        (TSTSFI_OV): Likewise.
        (TSTSFI_OV_DD): Likewise.
        (TSTSFI_OV_TD): Likewise.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        overloaded test significance functions.
        * config/rs6000/rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Add
        OPTION_MASK_P9_MISC into the representation of this mask.
        (POWERPC_MASKS): Add OPTION_MASK_P9_MISC into the representation
        of this mask.
        * config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Set the
        RS6000_BTM_P9_MISC flag in the return value if TARGET_P9_MISC is
        non-zero.
        (rs6000_expand_binop_builtin): Enforce that argument 0 of the exp
        argument is a 6-bit unsigned literal value if the icode argument
        represents a DFP test significance built-in call.
        (rs6000_invalid_builtin): Add support for the RS6000_BTM_P9_MISC
        flag used independently and in combination with the
        RS6000_BTM_64BIT flag.
        (rs6000_opt_masks): Add entry for power9-misc command-line option.
        (rs6000_builtin_mask_names): Add entry for power9-misc
        command-line option.
        * config/rs6000/rs6000.h: Redefine TARGET_P9_MISC as 0 if
        HAVE_AS_POWER9 is not a defined macro.  Define MASK_P9_MISC and
        RS6000_BTM_P9_MISC macros.
        * config/rs6000/rs6000.opt: Add support for the -mpower9-misc
        option and change the description of the -mpower9-vector option to
        enable only vector instructions, removing its erroneously claimed
        support for scalar instructions.
        * doc/extend.texi (PowerPC AltiVec Built-in Functions): Document
        the ISA 3.0 digital floating point test significance built-in
        functions.

2016-06-30  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (cortexa35_tunings):
        Enable AES fusion.  Use cortexa57_branch_cost.
        (cortexa53_tunings): Use cortexa57_branch_cost.
        (cortexa72_tunings): Use cortexa57_branch_cost.
        Use AUTOPREFETCHER_WEAK.
        (cortexa73_tunings): Use cortexa57_branch_cost.

2016-06-30  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
            James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/arm_neon.h (vcopyq_lane_f32, vcopyq_lane_f64,
        vcopyq_lane_p8, vcopyq_lane_p16, vcopyq_lane_s8, vcopyq_lane_s16,
        vcopyq_lane_s32, vcopyq_lane_s64, vcopyq_lane_u8, vcopyq_lane_u16,
        vcopyq_lane_u32, vcopyq_lane_u64): Reimplement in C.
        (vcopy_lane_f32, vcopy_lane_f64, vcopy_lane_p8, vcopy_lane_p16,
        vcopy_lane_s8, vcopy_lane_s16, vcopy_lane_s32, vcopy_lane_s64,
        vcopy_lane_u8, vcopy_lane_u16, vcopy_lane_u32, vcopy_lane_u64,
        vcopy_laneq_f32, vcopy_laneq_f64, vcopy_laneq_p8, vcopy_laneq_p16,
        vcopy_laneq_s8, vcopy_laneq_s16, vcopy_laneq_s32, vcopy_laneq_s64,
        vcopy_laneq_u8, vcopy_laneq_u16, vcopy_laneq_u32, vcopy_laneq_u64,
        vcopyq_laneq_f32, vcopyq_laneq_f64, vcopyq_laneq_p8, vcopyq_laneq_p16,
        vcopyq_laneq_s8, vcopyq_laneq_s16, vcopyq_laneq_s32, vcopyq_laneq_s64,
        vcopyq_laneq_u8, vcopyq_laneq_u16, vcopyq_laneq_u32, vcopyq_laneq_u64):
        New intrinsics.

2016-06-30  James Greenhalgh  <james.greenhalgh@arm.com>
            Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-simd.md (*aarch64_simd_vec_copy_lane<mode>):
        New define_insn.
        (*aarch64_simd_vec_copy_lane_<vswap_width_name><mode>): Likewise.

2016-06-30  David Malcolm  <dmalcolm@redhat.com>

        PR driver/71651
        * gcc.c (driver::build_option_suggestions): Pass "option" to
        add_misspelling_candidates.
        * opts-common.c (add_misspelling_candidates): Add "option" param;
        use it to avoid adding negated forms for options marked with
        RejectNegative.
        * opts.h (add_misspelling_candidates): Add "option" param.

2016-06-30  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/71693
        * fold-const.c (fold_binary_loc) <case RROTATE_EXPR>: Cast
        TREE_OPERAND (arg0, 0) and TREE_OPERAND (arg0, 1) to type
        first when permuting bitwise operation with rotate.  Cast
        TREE_OPERAND (arg0, 0) to type when cancelling two rotations.

2016-06-29  David Malcolm  <dmalcolm@redhat.com>

        * opts.c (handle_param): Use find_param_fuzzy to offer suggestions
        for misspelled param names.
        * params.c: Include spellcheck.h.
        (find_param_fuzzy): New function.
        * params.h (find_param_fuzzy): New prototype.
        * spellcheck.c (struct edit_distance_traits<const char *>): Move to...
        * spellcheck.h (struct edit_distance_traits<const char *>):
        ...here.

2016-06-29  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/predicates.md (const_0_to_7_operand): New
        predicate, recognize 0..7.
        * config/rs6000/rs6000.c (rs6000_expand_vector_extract): Add
        support for doing extracts from V16QImode, V8HImode, V4SImode
        under ISA 3.0.
        * config/rs6000/vsx.md (VSX_EXTRACT_I): Mode iterator for ISA 3.0
        vector extract support.
        (VSX_EXTRACT_PREDICATE): Mode attribute to validate element number
        for ISA 3.0 vector extract.
        (VSX_EX): Constraints to use for ISA 3.0 vector extract.
        (vsx_extract_<mode>, VSX_EXTRACT_I): Add support for doing
        extracts of a constant element number from small integer vectors
        on 64-bit ISA 3.0 systems.
        (vsx_extract_<mode>_di): Likewise.
        * config/rs6000/rs6000.h (TARGET_VEXTRACTUB): New target macro to
        say when we can do ISA 3.0 vector extracts.
        * config/rs6000/rs6000.md (stfiwx): Allow DImode in Altivec
        registers, using the stxsiwx instruction.

2016-06-29  Jim Wilson  <jim.wilson@linaro.org>

        * config/aarch64/aarch64-cores.def (qdf24xx): Use qdf24xx tuning.
        * config/aarch64/aarch64.c (qdf24xx_addrcost_table,
        qdf24xx_regmove_cost, qdf24xx_tunings): New.
        * config/arm/aarch64-cost-tables.h (qdf24xx_extra_costs): New.
        * config/arm/arm-cores.def (qdf24xx): Use qdf24xx tuning.
        * config/arm/arm.c (arm_qdf24xx_tune): New.

2016-06-29  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (cortexa53_tunings):
        Increase loop alignment to 8.  Set function alignment to 16.
        (cortexa35_tunings): Likewise.
        (cortexa57_tunings): Increase loop alignment to 8.
        (cortexa72_tunings): Likewise.
        (cortexa73_tunings): Likewise.

2016-06-29  Matthew Wahab  <matthew.wahab@arm.com>

        * doc/sourcebuild.texi (Effective-Target keywords): Add entries
        for arm_fp16_ok and arm_fp16_hw.
        (Add Options): Add entries for arm_fp16, arm_fp16_ieee and
        arm_fp16_alternative.

2016-06-29  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR tree-optimization/71655
        * tree-vect-stmts.c (vectorizable_comparison): Swap definition
        types when swapping operands.

2016-06-29  Martin Liska  <mliska@suse.cz>

        PR middle-end/71585
        * common.opt (flag_stack_protect): Mark the flag as optimization flag.
        * ipa-inline-transform.c (inline_call): Remove unnecessary call
        of build_optimization_node.

2016-06-29  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR tree-optimization/70729
        * tree-ssa-loop-im.c (ref_indep_loop_p_1): Consider memory reference as
        independent in loops having positive safelen value.
        * tree-vect-loop.c (vect_transform_loop): Clear-up safelen value since
        it may be not valid after vectorization.

2016-06-29  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/71625
        * tree-ssa-strlen.c (get_addr_stridx): Add PTR argument.  Assume list
        is sorted by ascending list->offset.  If PTR is non-NULL and there is
        previous strinfo, call get_stridx_plus_constant.
        (get_stridx): Pass exp as second argument to get_addr_stridx.
        (addr_stridxptr): Add missing list = list->next, so that there can be
        more than one entries in the list.  Bump limit from 16 to 32.  Ensure
        the list is sorted by ascending list->offset.
        (get_stridx_plus_constant): Adjust so that it can be also called with
        ADDR_EXPR instead of SSA_NAME as PTR.
        (handle_char_store): Pass NULL_TREE as second argument to
        get_addr_stridx.

2016-06-29  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/68961
        * simplify-rtx.c (simplify_subreg): Handle VEC_CONCAT like CONCAT.

2016-06-29  Richard Biener  <rguenther@suse.de>

        PR middle-end/71002
        * alias.c (component_uses_parent_alias_set_from): Handle
        type punning through union accesses by using the union alias set.
        * gimple.c (gimple_get_alias_set): Remove union type punning case.

2016-07-29  Richard Biener  <rguenther@suse.de>

        * match.pd ((T)(T2)x -> (T)x): Remove restriction on final
        precision not matching mode precision.

2016-06-28  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.md (call_symref_64bit_post_reload): Don't call
        pa_output_arg_descriptor.
        (call_val_symref_64bit_post_reload): Likewise.
        (call_val_powf_64bit_post_reload): Likewise.
        (sibcall_internal_symref_64bit): Likewise.
        (sibcall_value_internal_symref_64bit): Likewise.

2016-06-28  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/71626
        * config/i386/i386.c (ix86_expand_vector_move): For SUBREG of
        a constant, force its SUBREG_REG into memory or register instead
        of whole op1.

2016-06-28  Pitchumani Sivanupandi  <pitchumani.s@atmel.com>

        PR target/58655
        * config/avr/avr.opt (-mfract-convert-truncate): Update description.
        * doc/invoke.texi (AVR Options): Document it.

2016-06-28  Walter Lee  <walt@tilera.com>

        * config/tilegx/linux.h: Do not include arch/icache.h
        (CLEAR_INSN_CACHE): Provide inlined definition directly.
        * config/tilepro/linux.h: Do not include arch/icache.h
        (CLEAR_INSN_CACHE): Provide inlined definition directly.

2016-06-28  Wilco Dijkstra  <wdijkstr@arm.com>

        * tree-ssa-math-opts.c (find_bswap_or_nop_1): Adjust bitnumbering
        for big-endian BIT_FIELD_REF.

2016-06-28  Pat Haugen  <pthaugen@us.ibm.com>

        * config/rs6000/rs6000.md ('type' attribute): Add htmsimple/dfp types.
        ('size' attribute): Add '128'.
        Include power9.md.
        (*mov<mode>_hardfloat32, *mov<mode>_hardfloat64, *movdi_internal32,
        *movdi_internal64, *movdf_update1): Set size attribute to '64'.
        (add<mode>3, sub<mode>3, mul<mode>3, div<mode>3, sqrt<mode>2,
        copysign<mode>3, neg<mode>2_hw, abs<mode>2_hw, *nabs<mode>2_hw,
        *fma<mode>4_hw, *fms<mode>4_hw, *nfma<mode>4_hw, *nfms<mode>4_hw,
        extend<SFDF:mode><IEEE128:mode>2_hw, trunc<mode>df2_hw,
        *xscvqp<su>wz_<mode>, *xscvqp<su>dz_<mode>, *xscv<su>dqp_<mode>,
        *trunc<mode>df2_odd): Set size attribute to '128'.
        (*cmp<mode>_hw): Change type to veccmp and set size attribute to '128'.
        * config/rs6000/power6.md (power6-fp): Include dfp type.
        * config/rs6000/power7.md (power7-fp): Likewise.
        * config/rs6000/power8.md (power8-fp): Likewise.
        * config/rs6000/power9.md: New file.
        * config/rs6000/t-rs6000 (MD_INCLUDES): Add power9.md.
        * config/rs6000/htm.md (*tabort, *tabort<wd>c, *tabort<wd>ci,
        *trechkpt, *treclaim, *tsr, *ttest): Change type attribute to
        htmsimple.
        * config/rs6000/dfp.md (extendsddd2, truncddsd2, extendddtd2,
        trunctddd2, adddd3, addtd3, subdd3, subtd3, muldd3, multd3, divdd3,
        divtd3, *cmpdd_internal1, *cmptd_internal1, floatdidd2, floatditd2,
        ftruncdd2, fixdddi2, ftrunctd2, fixtddi2, dfp_ddedpd_<mode>,
        dfp_denbcd_<mode>, dfp_dxex_<mode>, dfp_diex_<mode>, dfp_dscli_<mode>,
        dfp_dscri_<mode>): Change type attribute to dfp.
        * config/rs6000/crypto.md (crypto_vshasigma<CR_char>): Change type
        attribute to vecsimple.
        * config/rs6000/rs6000.c (power9_cost): Update costs, cache size
        and prefetch streams.
        (rs6000_option_override_internal): Remove temporary code setting
        tuning to power8.  Don't set rs6000_sched_groups for power9.
        (last_scheduled_insn): Change to rtx_insn *.
        (divide_cnt, vec_load_pendulum): New variables.
        (rs6000_adjust_cost): Add Power9 to test for store->load separation.
        (rs6000_issue_rate): Set issue rate for Power9.
        (is_power9_pairable_vec_type): New.
        (power9_sched_reorder2): New.
        (rs6000_sched_reorder2): Call new function for Power9 specific
        reordering.
        (insn_must_be_first_in_group): Remove Power9.
        (insn_must_be_last_in_group): Likewise.
        (force_new_group): Likewise.
        (rs6000_sched_init): Fix initialization of last_scheduled_insn.
        Initialize divide_cnt/vec_load_pendulum.
        (_rs6000_sched_context, rs6000_init_sched_context,
        rs6000_set_sched_context): Handle context save/restore of new
        variables.

2016-06-28  Richard Biener  <rguenther@suse.de>

        * tree-ssa-alias.c (nonoverlapping_component_refs_of_decl_p):
        Properly handle DECL_BIT_FIELD_REPRESENTATIVE occuring as
        COMPONENT_REF operand.
        (nonoverlapping_component_refs_p): Likewise.
        * stor-layout.c (start_bitfield_representative): Mark
        DECL_BIT_FIELD_REPRESENTATIVE as DECL_NONADDRESSABLE_P.

2016-06-28  Jakub Jelinek  <jakub@redhat.com>

        * Makefile.in: Don't cat ../stage_current if it does not exist.

        * doc/extend.texi (__builtin_add_overflow_p): Clarify behavior when
        last argument is a bit-field.

        PR rtl-optimization/71673
        * internal-fn.c (expand_arith_overflow_result_store): Use
        OPTAB_LIB_WIDEN instead of OPTAB_DIRECT as last argument to
        expand_simple_binop.

        PR middle-end/66867
        * builtins.c (expand_ifn_atomic_compare_exchange_into_call,
        expand_ifn_atomic_compare_exchange): New functions.
        * internal-fn.c (expand_ATOMIC_COMPARE_EXCHANGE): New function.
        * tree.h (build_call_expr_internal_loc): Rename to ...
        (build_call_expr_internal_loc_array): ... this.  Fix up type of
        last argument.
        * internal-fn.def (ATOMIC_COMPARE_EXCHANGE): New internal fn.
        * predict.c (expr_expected_value_1): Handle IMAGPART_EXPR of
        ATOMIC_COMPARE_EXCHANGE result.
        * builtins.h (expand_ifn_atomic_compare_exchange): New prototype.
        * gimple-fold.h (optimize_atomic_compare_exchange_p,
        fold_builtin_atomic_compare_exchange): New prototypes.
        * gimple-fold.c (optimize_atomic_compare_exchange_p,
        fold_builtin_atomic_compare_exchange): New functions..
        * tree-ssa.c (execute_update_addresses_taken): If
        optimize_atomic_compare_exchange_p, ignore &var in 2nd argument
        of call when finding addressable vars, and if such var becomes
        non-addressable, call fold_builtin_atomic_compare_exchange.

2016-06-27  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/71670
        * config/rs6000/rs6000.md (ashdi3_extswsli_dot): Use
        gen_ashdi3_extswsli_dot2 instead of gen_ashdi3_extswsli_dot.

2016-06-27  Pat Haugen  <pthaugen@us.ibm.com>

        * config/rs6000/rs6000.md ('type' attribute): Add
        veclogical,veccmpfx,vecexts,vecmove insn types.
        (*abs<mode>2_fpr, *nabs<mode>2_fpr, *neg<mode>2_fpr, *extendsfdf2_fpr,
        copysign<mode>3_fcpsgn, trunc<mode>df2_internal1, neg<mode>2_internal,
        p8_fmrgow_<mode>, pack<mode>): Change type to fpsimple.
        (*xxsel<mode>, copysign<mode>3_hard, neg<mode>2_hw, abs<mode>2_hw,
        *nabs<mode>2_hw): Change type to vecmove.
        (*and<mode>3_internal, *bool<mode>3_internal, *boolc<mode>3_internal,
        *boolcc<mode>3_internal, *eqv<mode>3_internal,
        *one_cmpl<mode>3_internal, *ieee_128bit_vsx_neg<mode>2_internal,
        *ieee_128bit_vsx_abs<mode>2_internal,
        *ieee_128bit_vsx_nabs<mode>2_internal, extendkftf2, trunctfkf2,
        *ieee128_mfvsrd_64bit, *ieee128_mfvsrd_32bit, *ieee128_mtvsrd_64bit,
        *ieee128_mtvsrd_32bit): Change type to veclogical.
        (mov<mode>_hardfloat, *mov<mode>_hardfloat32, *mov<mode>_hardfloat64,
        *movdi_internal32, *movdi_internal64): Update insn types.
        * config/rs6000/vsx.md (*vsx_le_undo_permute_<mode>,
        vsx_extract_<mode>): Change type to veclogical.
        (*vsx_xxsel<mode>, *vsx_xxsel<mode>_uns): Change type to vecmove.
        (vsx_sign_extend_qi_<mode>, *vsx_sign_extend_hi_<mode>,
        *vsx_sign_extend_si_v2di): Change type to vecexts.
        * config/rs6000/altivec.md (*altivec_mov<mode>, *altivec_movti): Change
        type to veclogical.
        (*altivec_eq<mode>, *altivec_gt<mode>, *altivec_gtu<mode>,
        *altivec_vcmpequ<VI_char>_p, *altivec_vcmpgts<VI_char>_p,
        *altivec_vcmpgtu<VI_char>_p): Change type to veccmpfx.
        (*altivec_vsel<mode>, *altivec_vsel<mode>_uns): Change type to vecmove.
        * config/rs6000/dfp.md (*negdd2_fpr, *absdd2_fpr, *nabsdd2_fpr,
        negtd2, *abstd2_fpr, *nabstd2_fpr): Change type to fpsimple.
        * config/rs6000/40x.md (ppc405-float): Add fpsimple.
        * config/rs6000/440.md (ppc440-fp): Add fpsimple.
        * config/rs6000/476.md (ppc476-fp): Add fpsimple.
        * config/rs6000/601.md (ppc601-fp): Add fpsimple.
        * config/rs6000/603.md (ppc603-fp): Add fpsimple.
        * config/rs6000/6xx.md (ppc604-fp): Add fpsimple.
        * config/rs6000/7xx.md (ppc750-fp): Add fpsimple.
        (ppc7400-vecsimple): Add veclogical, vecmove, veccmpfx.
        * config/rs6000/7450.md (ppc7450-fp): Add fpsimple.
        (ppc7450-vecsimple): Add veclogical, vecmove.
        (ppc7450-veccmp): Add veccmpfx.
        * config/rs6000/8540.md (ppc8540_simple_vector): Add veclogical,
        vecmove.
        (ppc8540_vector_compare): Add veccmpfx.
        * config/rs6000/a2.md (ppca2-fp): Add fpsimple.
        * config/rs6000/cell.md (cell-fp): Add fpsimple.
        (cell-vecsimple): Add veclogical, vecmove.
        (cell-veccmp): Add veccmpfx.
        * config/rs6000/e300c2c3.md (ppce300c3_fp): Add fpsimple.
        * config/rs6000/e6500.md (e6500_vecsimple): Add veclogical, vecmove,
        veccmpfx.
        * config/rs6000/mpc.md (mpccore-fp): Add fpsimple.
        * config/rs6000/power4.md (power4-fp): Add fpsimple.
        (power4-vecsimple): Add veclogical, vecmove.
        (power4-veccmp): Add veccmpfx.
        * config/rs6000/power5.md (power5-fp): Add fpsimple.
        * config/rs6000/power6.md (power6-fp): Add fpsimple.
        (power6-vecsimple): Add veclogical, vecmove.
        (power6-veccmp): Add veccmpfx.
        * config/rs6000/power7.md (power7-fp): Add fpsimple.
        (power7-vecsimple): Add veclogical, vecmove, veccmpfx.
        * config/rs6000/power8.md (power8-fp): Add fpsimple.
        (power8-vecsimple): Add veclogical, vecmove, veccmpfx.
        * config/rs6000/rs64.md (rs64a-fp): Add fpsimple.
        * config/rs6000/titan.md (titan_fp): Add fpsimple.
        * config/rs6000/xfpu.md (fp-default, fp-addsub-s, fp-addsub-d): Add
        fpsimple.
        * config/rs6000/rs6000.c (rs6000_adjust_cost): Add TYPE_FPSIMPLE.

2016-06-27  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/71656
        * config/rs6000/rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Add
        OPTION_MASK_P9_DFORM_VECTOR.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Do not
        disable -mpower9-dform-vector when using reload.
        (quad_address_p): Remove 'gpr_p' argument and all associated code.
        New 'strict' argument.  Update all callers.  Add strict addressing
        support.
        (rs6000_legitimate_offset_address_p): Remove call to
        virtual_stack_registers_memory_p.
        (rs6000_legitimize_reload_address): Add quad address support.
        (rs6000_legitimate_address_p): Move call to quad_address_p above
        call to virtual_stack_registers_memory_p.  Adjust quad_address_p args
        to account for new strict usage.
        (rs6000_output_move_128bit): Adjust quad_address_p args to account
        for new strict usage.
        * config/rs6000/predicates.md (quad_memory_operand): Likewise.

2016-06-26  Uros Bizjak  <ubizjak@gmail.com>

        PR target/70902
        PR target/71453
        PR target/71555
        PR target/71596
        PR target/71657
        * config/i386/i386.c (ix86_spill_class): Disable condition to
        always return NO_REGS.

2016-06-26  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c: Include gimple-pretty-print.h
        (predicted_by_loop_heuristics_p): Check also
        PRED_LOOP_EXIT_WITH_RECURSION
        (predict_loops): Find self recursive calls and use special purpose
        predictors for them; dump log about decisions.
        (pass_profile::execute): Dump info about #of iterations.
        * predict.def (PRED_LOOP_EXIT_WITH_RECURSION,
        (PRED_LOOP_GUARD_WITH_RECURSION): New predictors.

2016-06-26  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.c (pa_output_indirect_call): Rework to combine
        output_asm_insn calls and shorten long lines.  Output .CALL
        argument descriptor using pa_output_arg_descriptor.  Add various
        inline $$dyncall and other optimizations.
        (pa_attr_length_indirect_call): Adjust ordering and lengths.

2016-06-25  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/71643
        * tree-ssa-tail-merge.c (find_clusters_1): Ignore basic blocks with
        EH preds.

        * tree-ssa-tail-merge.c (deps_ok_for_redirect_from_bb_to_bb): Don't
        leak a bitmap if dep_bb is NULL.

        PR tree-optimization/71631
        * tree-ssa-reassoc.c (reassociate_bb): Pass true as last argument
        to rewrite_expr_tree even if negate_result, move new_lhs var
        declaration and initialization earlier, for powi_result set afterwards
        new_lhs to lhs.  For negate_result, use new_lhs instead of tmp
        if new_lhs != lhs, and don't shadow gsi var.

2016-06-24  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (predict_paths_leading_to, predict_paths_leading_to_edge):
        Add in_loop parameter.
        (predict_loops): Add loop guard heuristics.
        * predict.def (PRED_LOOP_GUARD): New heuristics.

2016-06-24  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c: Include ipa-utils.h
        (tree_bb_level_prediction): Predict recursive calls.
        (tree_estimate_probability_bb): Skip inexpensive calls for call
        predictor.
        * predict.def (PRED_RECURSIVE_CALL): New.

2016-06-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000-builtin.def (BU_FLOAT128_2): New #define.
        (BU_FLOAT128_1): Likewise.
        (FABSQ): Likewise.
        (COPYSIGNQ): Likewise.
        (RS6000_BUILTIN_NANQ): Likewise.
        (RS6000_BUILTIN_NANSQ): Likewise.
        (RS6000_BUILTIN_INFQ): Likewise.
        (RS6000_BUILTIN_HUGE_VALQ): Likewise.
        * config/rs6000/rs6000.c (rs6000_fold_builtin): New prototype.
        (TARGET_FOLD_BUILTIN): New #define.
        (rs6000_builtin_mask_calculate): Add TARGET_FLOAT128 entry.
        (rs6000_invalid_builtin): Add handling for RS6000_BTM_FLOAT128.
        (rs6000_fold_builtin): New target hook implementation, handling
        folding of 128-bit NaNs and infinities.
        (rs6000_init_builtins): Initialize const_str_type_node; ensure all
        entries are filled in to avoid problems during bootstrap
        self-test; define builtins for 128-bit NaNs and infinities.
        (rs6000_opt_mask): Add entry for float128.
        * config/rs6000/rs6000.h (RS6000_BTM_FLOAT128): New #define.
        (RS6000_BTM_COMMON): Include RS6000_BTM_FLOAT128.
        (rs6000_builtin_type_index): Add RS6000_BTI_const_str.
        (const_str_type_node): New #define.
        * config/rs6000/rs6000.md (copysign<mode>3 for IEEE128): Convert
        to a define_expand that dispatches to either copysign<mode>3_soft
        or copysign<mode>3_hard.
        (copysign<mode>3_hard): Rename from copysign<mode>3.
        (copysign<mode>3_soft): New define_insn.
        * doc/extend.texi: Document new builtins.

2016-06-24  Jakub Jelinek  <jakub@redhat.com>

        * cfgloop.c (flow_loop_dump): Cast nit to uint64_t and print it using
        PRIu64 instead of lu.

2016-06-24  Eric Botcazou  <ebotcazou@adacore.com>

        PR debug/71642
        * tree-inline.c (remap_decl): When fixing up DECL_ORIGINAL_TYPE, just
        copy the type name.

2016-06-24  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/71647
        * omp-low.c (lower_rec_input_clauses): Convert
        omp_clause_aligned_alignment (c) to size_type_node for the
        last argument of __builtin_assume_aligned.

2016-06-24  H.J. Lu  <hongjiu.lu@intel.com>

        * configure.ac (calling ___tls_get_addr via GOT): New
        assembler/linker check.
        (HAVE_AS_IX86_TLS_GET_ADDR_GOT): New.  Defined to 1 if 32-bit
        assembler and linker supports calling ___tls_get_addr via GOT.
        Otherise, defined to 0.
        * config.in: Regenerated.
        * configure: Likewise.
        * config/i386/constraints.md (Yb): New constraint.
        * config/i386/i386.h (reg_class): Add TLS_GOTBASE_REGS.
        (REG_CLASS_NAMES): Likewise.
        (REG_CLASS_CONTENTS): Likewise.
        * config/i386/i386.md (*tls_global_dynamic_32_gnu): Replace
        the b constraint with the Yb constraint.  Call ___tls_get_addr
        via GOT for GNU TLS with -fno-plt if HAVE_AS_IX86_TLS_GET_ADDR_GOT
        is 1.
        (*tls_local_dynamic_base_32_gnu): Likewise.
        (*tls_global_dynamic_64_<mode>): Call _tls_get_addr via GOT for
        GNU TLS with -fno-plt if HAVE_AS_IX86_TLS_GET_ADDR_GOT is 1.
        (*tls_local_dynamic_base_64_<mode>): Likewise.

2016-06-24  Martin Liska  <mliska@suse.cz>

        * cfgloop.c (flow_loop_dump): Dump average number of loop iterations.
        * cfgloop.h: Change 'struct loop' to 'const struct loop' for a
        few functions.
        * cfgloopanal.c (expected_loop_iterations_unbounded): Set a new
        argument to true if the expected number of iterations is
        loop-based.

2016-06-24  Uros Bizjak  <ubizjak@gmail.com>

        * configure.ac (HAVE_AS_GOTOF_IN_DATA): Use $as_ix86_gas_32_opt to
        assemble for 32bit target.
        (HAVE_AS_IX86_TLSGDPLT): Use $as_ix86_gas_32_opt to assemble
        and $ld_ix86_gld_32_opt to link for 32bit target.
        (HAVE_AS_IX86_TLSLDMPLT): Ditto.
        * configure: Regenerate.

2016-06-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.c (int_log2): Delete definition and prototype.
        (shift_op): Use exact_log2 instead of int_log2.
        (vfp3_const_double_for_fract_bits): Likewise.

2016-06-24  Jakub Jelinek  <jakub@redhat.com>

        * internal-fn.c (expand_arith_set_overflow): New function.
        (expand_addsub_overflow, expand_neg_overflow, expand_mul_overflow):
        Use it.
        (expand_arith_overflow_result_store): Likewise.  Handle precision
        smaller than mode precision.
        * tree-vrp.c (extract_range_basic): For imag part, handle
        properly signed 1-bit precision result.
        * doc/extend.texi (__builtin_add_overflow): Document that last
        argument can't be pointer to enumerated or boolean type.
        (__builtin_add_overflow_p): Document that last argument can't
        have enumerated or boolean type.

2016-06-23  Michael Meissner  <meissner@linux.vnet.ibm.com>
            Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/predicates.md (splat_input_operand): Rework.
        Don't allow constants, since the insns that use this predicate
        don't support constants.  Constants are handled by other insns
        that are created via combine.  During and after register
        allocation, only allow indexed or indirect addresses, and not
        general addresses.  Only allow modes supported by the hardware.
        * config/rs6000/rs6000.c (xxsplitb_constant_p): Update usage
        comment.  Move check for using VSPLTIS<x> to a common location,
        instead of doing it in two different places.

2016-06-23  Jocelyn Mayer  <l_indien@magic.fr>

        * config/i386/driver-i386.c (host_detect_local_cpu): Set
        PROCESSOR_PENTIUMPRO for signature_CENTAUR_ebx family >= 9.
        <case PROCESSOR_PENTIMUMPRO>: Pass c7 or nehemiah for
        signature_CENTAUR_ebx.

2016-06-23  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/66232
        PR target/67400
        * configure.ac (as_ix86_tls_ldm_opt): Renamed to ...
        (as_ix86_gas_32_opt): This.
        (ld_ix86_tls_ldm_opt): Renamed to ...
        (ld_ix86_gld_32_opt): This.
        (R_386_TLS_LDM reloc): Updated.
        (R_386_GOT32X reloc): New assembler/linker check.
        (HAVE_AS_IX86_GOT32X): New.  Defined to 1 if 32-bit assembler and
        linker support "jmp *_start@GOT" and "cmpl $0, bar@GOT".  Otherise,
        defined to 0.
        * config.in: Regenerated.
        * configure: Likewise.
        * config/i386/i386.c (ix86_force_load_from_GOT_p): Return
        true if HAVE_AS_IX86_GOT32X is 1 in 32-bit mode.
        (ix86_legitimate_address_p): Allow UNSPEC_GOT for -fno-plt
        if ix86_force_load_from_GOT_p returns true.
        (ix86_print_operand_address_as): Also support UNSPEC_GOT if
        ix86_force_load_from_GOT_p returns true.
        (ix86_expand_move): Generate UNSPEC_GOT in 32-bit mode to load
        the external function address via the GOT slot.
        (ix86_nopic_noplt_attribute_p): Check both TARGET_64BIT and
        HAVE_AS_IX86_GOT32X before returning false.
        (ix86_output_call_insn): Generate "%!jmp/call\t*%p0@GOT" in
        32-bit mode if ix86_nopic_noplt_attribute_p returns true.

2016-06-23  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-inline.c (remap_decl): Preserve DECL_ORIGINAL_TYPE invariant.

2016-06-23  Andi Kleen  <ak@linux.intel.com>

        * Makefile.in: Regenerate.
        * doc/install.texi: Document autoprofiledbootstrap.

2016-06-23  Andi Kleen  <ak@linux.intel.com>

        * config/i386/gcc-auto-profile: New file.

2016-06-23  Martin Liska  <mliska@suse.cz>

        PR middle-end/71619
        * predict.c (predict_loops): Revert the hunk that was removed
        in r237103.

2016-06-23  Jakub Sejdak  <jakub.sejdak@phoesys.com>

        * config.gcc: Add support for arm*-*-phoenix* targets.
        * config/arm/t-phoenix: New.
        * config/phoenix.h: New.

2016-06-23  Uros Bizjak  <ubizjak@gmail.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        PR target/67400
        * config/i386/i386-protos.h (ix86_force_load_from_GOT_p): New.
        * config/i386/i386.c (ix86_force_load_from_GOT_p): New function.
        (ix86_legitimate_constant_p): Do not allow UNSPEC_GOTPCREL if
        ix86_force_load_from_GOT_p returns true.
        (ix86_legitimate_address_p): Allow UNSPEC_GOTPCREL if
        ix86_force_load_from_GOT_p returns true.
        (ix86_print_operand_address_as): Support UNSPEC_GOTPCREL if
        ix86_force_load_from_GOT_p returns true.
        (ix86_expand_move): Load the external function address via the
        GOT slot if ix86_force_load_from_GOT_p returns true.
        * config/i386/predicates.md (x86_64_immediate_operand): Return
        false for SYMBOL_REFs where ix86_force_load_from_GOT_p returns true.
        (x86_64_zext_immediate_operand): Ditto.

2016-06-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_expand_move): Simplify SYMBOL_REF handling.

2016-06-22  David Malcolm  <dmalcolm@redhat.com>

        PR c/70339
        * diagnostic-core.h (pedwarn_at_rich_loc): New prototype.
        * diagnostic.c (pedwarn_at_rich_loc): New function.
        * spellcheck.h (best_match::best_match): Add a
        "best_distance_so_far" optional parameter.
        (best_match::set_best_so_far): New method.
        (best_match::get_best_distance): New accessor.
        (best_match::get_best_candidate_length): New accessor.

2016-06-22  Nick Clifton  <nickc@redhat.com>

        * dwarf2out.c (scompare_loc_descriptor): Use SCALAR_INT_MODE_P() in
        place of GET_MODE_CLASS() == MODE_INT, so that partial integer
        modes are accepted as well.
        (ucompare_loc_descriptor): Likewise.
        (minmax_loc_descriptor): Likewise.
        (clz_loc_descriptor): Likewise.
        (popcount_loc_descriptor): Likewise.
        (bswap_loc_descriptor): Likewise.
        (rotate_loc_descriptor): Likewise.
        (mem_loc_descriptor): Likewise.
        (loc_descriptor): Likewise.

2016-06-22  David Malcolm  <dmalcolm@redhat.com>

        * common.opt (fdiagnostics-parseable-fixits): New option.
        * diagnostic.c: Include "selftest.h".
        (print_escaped_string): New function.
        (print_parseable_fixits): New function.
        (diagnostic_report_diagnostic): Call print_parseable_fixits.
        (selftest::assert_print_escaped_string): New function.
        (ASSERT_PRINT_ESCAPED_STRING_STREQ): New macro.
        (selftest::test_print_escaped_string): New function.
        (selftest::test_print_parseable_fixits_none): New function.
        (selftest::test_print_parseable_fixits_insert): New function.
        (selftest::test_print_parseable_fixits_remove): New function.
        (selftest::test_print_parseable_fixits_replace): New function.
        (selftest::diagnostic_c_tests): New function.
        * diagnostic.h (struct diagnostic_context): Add field
        "parseable_fixits_p".
        * doc/invoke.texi (Diagnostic Message Formatting Options): Add
        -fdiagnostics-parseable-fixits.
        (-fdiagnostics-parseable-fixits): New option.
        * opts.c (common_handle_option): Handle
        -fdiagnostics-parseable-fixits.
        * selftest-run-tests.c (selftest::run_tests): Call
        selftest::diagnostic_c_tests.
        * selftest.h (selftest::diagnostic_c_tests): New prototype.

2016-06-22  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR tree-optimization/71488
        * tree-vect-patterns.c (vect_recog_mask_conversion_pattern): Support
        comparison of boolean vectors.
        * tree-vect-stmts.c (vectorizable_comparison): Vectorize comparison
        of boolean vectors using bitwise operations.

2016-06-22  Andreas Schwab  <schwab@suse.de>

        * config/aarch64/aarch64-protos.h (aarch64_elf_asm_named_section):
        Remove declaration.

2016-06-22  Eric Botcazou  <ebotcazou@adacore.com>

        * function.c (assign_parm_setup_reg): Prevent sharing in another case.

2016-06-22  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * config/i386/i386.c (print_reg): Emit an error message on attempt to
        print FLAGS_REG.

2016-06-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.c (arm_cortex_a73_tune): New struct.
        * config/arm/arm-cores.def (cortex-a73): New entry.
        (cortex-a73.cortex-a35): Likewise.
        (cortex-a73.cortex-a53): Likewise.
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/arm-tune.md: Likewise.
        * config/arm/bpabi.h (BE8_LINK_SPEC): Handle mcpu=cortex-a73,
        mcpu=cortex-a73.cortex-a35 and mcpu=cortex-a73.cortex-a53.
        * config/arm/t-aprofile: Handle mcpu=cortex-a73,
        mcpu=cortex-a73.cortex-a35 and mcpu=cortex-a73.cortex-a53.
        * doc/invoke.texi (ARM Options): Document cortex-a73,
        cortex-a73.cortex-a35 and cortex-a73.cortex-a53.

2016-06-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (cortexa73_tunings): New struct.
        * config/aarch64/aarch64-cores.def (cortex-a73): New entry.
        (cortex-a73.cortex-a35): Likewise.
        (cortex-a73.cortex-a53): Likewise.
        * config/aarch64/aarch64-tune.md: Regenerate.
        * doc/invoke.texi (AArch64 Options): Document cortex-a73,
        cortex-a73.cortex-a35 and cortex-a73.cortex-a53 arguments to
        -mcpu and -mtune.

2016-06-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_as_compress_debug): Remove
        --compress-debug-sections as extra as switch.
        Handle gas --compress-debug-sections=type.
        (gcc_cv_ld_compess_debug): Remove bogus ld_date check.
        Handle gld --compress-debug-sections=type.
        * configure: Regenerate.

2016-06-21  Andrew Burgess  <andrew.burgess@embecosm.com>

        * bb-reorder.c (pass_partition_blocks::gate): Update comment.

2016-06-21  John David Anglin  <danglin@gcc.gnu.org>

        * gcov-tool.c (profile_rewrite): Use int64_t instead of long long.
        (do_rewrite): likewise.

2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * common/config/mep/mep-common.c: Remove.
        * config.gcc: Remove mep-* support.
        * config/mep/constraints.md: Remove.
        * config/mep/default.h: Remove.
        * config/mep/intrinsics.h: Remove.
        * config/mep/intrinsics.md: Remove.
        * config/mep/ivc2-template.h: Remove.
        * config/mep/mep-c5.cpu: Remove.
        * config/mep/mep-core.cpu: Remove.
        * config/mep/mep-default.cpu: Remove.
        * config/mep/mep-ext-cop.cpu: Remove.
        * config/mep/mep-intrin.h: Remove.
        * config/mep/mep-ivc2.cpu: Remove.
        * config/mep/mep-pragma.c: Remove.
        * config/mep/mep-protos.h: Remove.
        * config/mep/mep.c: Remove.
        * config/mep/mep.cpu: Remove.
        * config/mep/mep.h: Remove.
        * config/mep/mep.md: Remove.
        * config/mep/mep.opt: Remove.
        * config/mep/predicates.md: Remove.
        * config/mep/t-mep: Remove.
        * doc/install.texi: Remove mep-* documentation.
        * doc/md.texi: Likewise.

2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * config.gcc: Remove support for avr-rtems.
        * config/avr/gen-avr-mmcu-specs.c: Likewise.
        * config/avr/rtems.h: Remove.
        * config/avr/t-rtems: Remove.

2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * config.gcc: Remove m32r-rtems support.
        * config/m32r/rtems.h: Remove.

2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * config.gcc: Remove h8300-rtems support.
        * config/h8300/rtems.h: Remove.
        * config/h8300/t-rtems: Remove.

2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * config.gcc: Remove support for knetbsd.
        * configure.ac: Likewise.
        * config/i386/knetbsd-gnu.h: Remove.  * config/i386/knetbsd-gnu64.h: Remove.
        * config/knetbsd-gnu.h: Remove.
        * configure: Regenerate.

2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * config.gcc: Remove support for openbsd 2 and 3.
        * config/openbsd-oldgas.h: Remove.

2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * config.gcc: Remove interix support.
        * config/i386/i386-interix.h: Remove.
        * config/i386/interix.opt: Remove.
        * config/i386/t-interix: Remove.
        * configure: Regenerate.
        * configure.ac: Remove interix support.
        * doc/install.texi: Remove interix documentation.

2016-06-21  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/rs6000.h: Add conditional preprocessing directives
        to disable Power9-specific compiler features if HAVE_AS_POWER9 is
        not defined.

2016-06-21  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (verify_type_variant): Skip TYPE_SIZE and TYPE_SIZE_UNIT if
        they are both PLACEHOLDER_EXPRs.

2016-06-21  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * stor-layout.c (layout_type): Move setting complex MODE to
        layout_type, instead of setting it ahead of time by the caller.
        * tree.c (build_complex_type): Likewise.

2016-06-21  Martin Liska  <mliska@suse.cz>

        * predict.c (force_edge_cold): Replace imposisble with
        impossible.

2016-06-21  Ilya Verbin  <ilya.verbin@intel.com>

        * config/i386/i386.c (ix86_emit_swsqrtsf): Emit vrsqrt28ps.
        * config/i386/sse.md (define_expand "rsqrtv16sf2"): New.

2016-06-21  Ilya Verbin  <ilya.verbin@intel.com>

        * config/i386/i386.c (ix86_emit_swdivsf): Emit vrcp28ps.

2016-06-21  H.J. Lu  <hongjiu.lu@intel.com>
            Ilya Enkovich  <ilya.enkovich@intel.com>

        PR target/71549
        * config/i386/i386.c (timode_scalar_chain::fix_debug_reg_uses):
        New member function to convert V1TImode register to SUBREG
        TImode in debug insn.
        (timode_scalar_chain::convert_insn): Call fix_debug_reg_uses
        after changing register mode to V1TImode.

2016-06-21  Virendra Pathak  <virendra.pathak@broadcom.com>

        * config/aarch64/aarch64-cores.def (vulcan): New core.
        * config/aarch64/aarch64-tune.md: Regenerate.
        * doc/invoke.texi: Document vulcan as an available option.

2016-06-21  Eric Botcazou  <ebotcazou@adacore.com>

        * cse.c (canon_asm_operands): New function extracted from...
        (canonicalize_insn): ...here.  Call it to canonicalize an ASM_OPERANDS
        either standalone or member of a PARALLEL.

2016-06-21  Georg-Johann Lay  <avr@gjlay.de>

        PR target/30417
        * config/avr/gen-avr-mmcu-specs.c (print_mcu):
        [*link_data_start]: Wrap -Tdata into %{!Tdata:...}.
        [*link_text_start]: Wrap -Ttext into %{!Ttext:...}.

2016-06-21  Georg-Johann Lay  <avr@gjlay.de>

        PR target/71103
        * config/avr/avr.md (movqi): Only handle loading subreg:qi of
        constant addresses if can_create_pseudo_p.

2016-06-21  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/71588
        * tree-ssa-strlen.c (valid_builtin_call): New function.
        (adjust_last_stmt, handle_builtin_memset, strlen_optimize_stmt): Use
        it.

2016-06-20  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/71581
        * tree-ssa-uninit.c (warn_uninit): If EXPR and VAR are NULL,
        see if T isn't anonymous SSA_NAME with COMPLEX_EXPR created
        for conversion of scalar user var to complex type and use the
        underlying SSA_NAME_VAR in that case.  If EXPR is still NULL,
        punt.

        PR rtl-optimization/71591
        * toplev.c (toplev::run_self_tests): If no_backend, complain and
        don't run any tests.

2016-06-20  Hans-Peter Nilsson  <hp@axis.com>

        PR target/71571
        * config/cris/cris.c (cris_asm_output_mi_thunk): Add missing "ba"
        delay-slot "nop" for PIC with CRIS v32.  Also add missing leading
        space for PIC with non-v32 and the common non-PIC "jump".

2016-06-20  Jakub Jelinek  <jakub@redhat.com>

        PR target/71559
        * config/i386/i386.c (ix86_fp_cmp_code_to_pcmp_immediate): Fix up
        returned values and add UN*/LTGT/*ORDERED cases with values matching
        D operand modifier on vcmp for AVX.

2016-06-20  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.opt
        (mpc-relative-literal-loads): Rename internal option name.
        * config/aarch64/aarch64.c
        (aarch64_nopcrelative_literal_loads): Rename to
        aarch64_pcrelative_literal_loads.
        (aarch64_expand_mov_immediate): Likewise.
        (aarch64_secondary_reload): Likewise.
        (aarch64_can_use_per_function_literal_pools_p): Likewise.
        (aarch64_override_options_after_change_1): Rename and simplify logic.
        (aarch64_classify_symbol): Merge large model checks into switch,
        remove pc-relative load check.

2016-06-20  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/arm/aarch-cost-tables.h (cortexa53_extra_costs): Make FP
        costs relative to the cost of a register move.

2016-06-20  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/arm_neon.h (vcvt_n_f64_s64): New.
        (vcvt_n_f64_u64): Likewise.
        (vcvt_n_s64_f64): Likewise.
        (vcvt_n_u64_f64): Likewise.
        (vcvt_f64_s64): Likewise.
        (vrecpe_f64): Likewise.
        (vcvt_f64_u64): Likewise.
        (vrecps_f64): Likewise.

2016-06-20  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64.md
        (<FCVT_F2FIXED:fcvt_fixed_insn><GPF:mode>3): Add attributes to
        iterators.
        (<FCVT_FIXED2F:fcvt_fixed_insn><GPI:mode>3): Likewise.  Correct
        attributes.
        * config/aarch64/aarch64-builtins.c
        (aarch64_types_binop_uss_qualifiers): Delete.
        (TYPES_BINOP_USS): Likewise.
        (aarch64_types_binop_sus_qualifiers): Likewise.
        (TYPES_BINOP_SUS): Likewise.
        (aarch64_types_fcvt_from_unsigned_qualifiers): New.
        (TYPES_FCVTIMM_SUS): Likewise.
        * config/aarch64/aarch64-simd-builtins.def (scvtf): Use SHIFTIMM
        rather than BINOP.
        (ucvtf): Use FCVTIMM_SUS rather than BINOP_SUS.
        (fcvtzs): Use SHIFTIMM rather than BINOP.
        (fcvtzu): Use SHIFTIMM_USS rather than BINOP_USS.

2016-06-20  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/arm/aarch-cost-tables.h (cortexa57_extra_costs): Make FP
        costs relative to the cost of a register move.

2016-06-20  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_modes_tieable_p):
        Allow scalar/single vector modes to be tieable.

2016-06-20  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/cortex-a57.md (cortex_a57_fp_cpys): Add fcsel.

2016-06-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * params.def (PARAM_ALIGN_LOOP_ITERATIONS): Use "alignment" instead of
        "alignement".
        * tree.h (TYPE_ALIGN): Likewise.

2016-06-20  Georg-Johann Lay  <avr@gjlay.de>

        PR target/71103
        * config/avr/avr.md (movqi): Handle loading subreg:qi (const).

2016-06-20  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (avr_print_operand): Fix "format not a string
        literal" build warnings.
        (avr_print_operand_address): Dito.

2016-06-19  David Edelsohn  <dje.gcc@gmail.com>

        PR target/71375
        * config/rs6000/aix51.h (TARGET_EXTRA_BUILTINS): Define as 0.
        * config/rs6000/aix43.h (TARGET_EXTRA_BUILTINS): Same.

2016-06-18  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.h (TARGET_LONG_PIC_PCREL_CALL): Remove.

2016-06-18  Eric Botcazou  <ebotcazou@adacore.com>

        PR bootstrap/71435
        * reload1.c (reload): Pass 0 to finish_spills when called because
        update_eliminables_and_spill returns true and remove did_spill.
        (finish_spills): Adjust comment and document GLOBAL parameter.

2016-06-17  DJ Delorie  <dj@redhat.com>

        PR target/71338
        * config/rl78/rl78-expand.c (umulqihi3): Enable for G10.
        * config/rl78/rl78-virtual.c (umulhi3_shift_virt): Likewise.
        (umulqihi3_virt): Likewise.
        * config/rl78/rl78-real.c (umulhi3_shift_real): Likewise.
        (umulqihi3_real): Likewise.

2016-06-17  Martin Liska  <mliska@suse.cz>

        * tree-ssa-reassoc.c (transform_add_to_multiply): Use auto_vec.

2016-06-17  Martin Liska  <mliska@suse.cz>

        * predict.def: PRED_LOOP_EXIT from 92 to 85.

2016-06-17  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/arm/arm_neon.h (vadd_f32): replace __FAST_MATH with
        __FAST_MATH__.
        (vaddq_f32): Likewise.
        (vmul_f32): Likewise.
        (vmulq_f32): Likewise.
        (vsub_f32): Likewise.
        (vsubq_f32): Likewise.

2016-06-17  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/71347
        * tree-ssa-loop-ivopts.c (determine_group_iv_cost_address): Compute
        cost for all uses in group.

2016-06-17  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop.c (vect_create_epilog_for_reduction): Only
        insert gimple seq if it's not empty.

2016-06-17  Bin Cheng  <bin.cheng@arm.com>

        * tree-vectorizer.h (struct dr_with_seg_len): Remove class
        member OFFSET.
        * tree-vect-data-refs.c (operator ==): Handle DR_OFFSET directly,
        rather than OFFSET.
        (comp_dr_with_seg_len_pair): Ditto.
        (vect_prune_runtime_alias_test_list): Ditto.  Also Canonicalize
        struct dr_with_seg_len_pair against DR_OFFSET.
        * tree-vect-loop-manip.c (vect_create_cond_for_alias_checks): Handle
        DR_OFFSET directly.

2016-06-17  Szabolcs Nagy  <szabolcs.nagy@arm.com>

        * config/aarch64/geniterators.sh: Handle parenthesised conditions.

2016-06-16  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.c (pa_output_pic_pcrel_sequence): New.
        (pa_output_lbranch): Use pa_output_pic_pcrel_sequence.
        (pa_output_millicode_call): Likewise.
        (pa_output_call): Likewise.
        (pa_output_indirect_call): Likewise.
        (pa_asm_output_mi_thunk): Likewise.

2016-06-16  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * doc/invoke.texi (x86 Options): Fix -mno-fp-ret-in-387 typo.

2016-06-16  Martin Liska  <mliska@suse.cz>

        * predict.c (combine_predictions_for_insn): When we find a first
        match predictor, we should consider just predictors with
        PRED_FLAG_FIRST_MATCH.  Print either first match (if any) or
        DS theory predictor.
        (combine_predictions_for_bb): Likewise.

2016-06-16  Jakub Jelinek  <jakub@redhat.com>

        * gimplify.c (gimplify_scan_omp_clauses): Handle COMPONENT_REFs
        with base of reference to struct.

2016-06-16  Uros Bizjak  <ubizjak@gmail.com>

        * doc/invoke.texi (x86 Options): Document -m80387 and -mhard-float.

2016-06-16  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

        PR target/71151
        * config/avr/avr.c (avr_asm_init_sections): Remove setup of
        progmem_swtable_section.
        (progmem_swtable_section): Remove.
        (avr_asm_function_rodata_section): Remove.
        (TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
        * config/avr/avr.h (JUMP_TABLES_IN_TEXT_SECTION: Define to 1.

2016-06-16  Jocelyn Mayer  <l_indien@magic.fr>

        * config/i386/driver-i386.c (host_detect_local_cpu): Set
        PROCESSOR_K8 for signature_CENTAUR_ebx with has_longmode.
        <case PROCESSOR_K8>: Pass nano-3000, nano, eden-x2 or k8 for
        signature_CENTAUR_ebx.
        * config/i386/i386.c (ix86_option_override_internal): Add
        definitions for VIA c7, samuel-2, nehemiah, esther, eden-x2, eden-x4,
        nano, nano-1000, nano-2000, nano-3000, nano-x2 and nano-x4.
        * doc/invoke.texi (x86 Options): Document new VIA -march entries.

2016-06-16  Martin Liska  <mliska@suse.cz>

        * predict.def: Add fortran loop preheader predictor.
        * gimple-fold.c (gimple_fold_stmt_to_constant_1): Properly
        fold IFN_BUILTIN_EXPECT with a known constant argument.

2016-06-16  Martin Liska  <mliska@suse.cz>

        * predict.def: Add 'Fortran' to display text of all
        PRED_FORTRAN_* predictors.

2016-06-16  Uros Bizjak  <ubizjak@gmail.com>

        PR target/71242
        * config/ia64/ia64.c (enum ia64_builtins) [IA64_BUILTIN_NANQ]: New.
        [IA64_BUILTIN_NANSQ]: Ditto.
        (ia64_fold_builtin): New function.
        (TARGET_FOLD_BUILTIN): New define.
        (ia64_init_builtins) Declare const_string_type node.
        Add __builtin_nanq and __builtin_nansq builtin functions.
        (ia64_expand_builtin): Handle IA64_BUILTIN_NANQ and IA64_BUILTIN_NANSQ.

2016-06-16  Nick Clifton  <nickc@redhat.com>

        * config/msp430/msp430-opts.h (msp430_hwmult_types): Add
        MSP430_HWMULT_ prefix to enum values.
        (msp430_regions): Add MSP430_REGION_ prefix to enum values.
        * config/msp430/msp430.c: Update use of enum values.
        * config/msp430/msp430.md: Likewise.
        * config/msp430/msp430.opt: Likewise.

2016-06-16  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-ivcanon.c (tree_estimate_loop_size): Fix estimation
        of comparsions in the last iteration.

2016-06-16  Claudiu Zissulescu  <claziss@synopsys.com>
            Joern Rennecke  <joern.rennecke@embecosm.com>

        * config/arc/arc.c (arc_print_operand_address): Handle pc-relative
        addresses.
        (arc_needs_pcl_p): Add GOTOFFPC.
        (arc_legitimate_pic_addr_p): Likewise.
        (arc_output_pic_addr_const): Likewise.
        (arc_legitimize_pic_address): Generate a pc-relative address using
        GOTOFFPC.
        (arc_output_libcall): Use @pcl syntax.
        (arc_delegitimize_address_0): Delegitimize ARC_UNSPEC_GOTOFFPC.
        * config/arc/arc.md ("unspec"): Add ARC_UNSPEC_GOTOFFPC.
        (*movsi_insn): Use @pcl syntax.
        (doloop_begin_i): Likewise.

2016-06-16  Martin Liska  <mliska@suse.cz>

        * predict.def: Define a new predictor.

2016-06-16  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.opt (mtp-regno): Update text.

2016-06-16  Renlin Li  <renlin.li@arm.com>

        * config/aarch64/aarch64.c (aarch64_legitimize_address): Fix a typo.

2016-06-16  Jakub Jelinek  <jakub@redhat.com>

        PR target/71554
        * config/i386/i386.md (setcc + movzbl peephole2): Use reg_set_p.
        (setcc + and peephole2): Likewise.

        PR rtl-optimization/71532
        * cse.c (cse_insn): For const/pure calls, invalidate argument passing
        memory slots.

2016-06-15  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/vsx.md (VSINT_84): Add DImode to enable loading
        DImode constants with XXSPLTIB in vector registers.
        (vsx_extract_<mode>, V2DImode/V2DFmode): Combine both
        vsx_extract_<mode>_internal{1,2} into a single insn that handles
        direct move (both ISA 2.07 and ISA 3.0 versions), and optimizes
        extraction of the element at the top of the register as a scalar
        value.
        (vsx_extract_<mode>_internal1): Likewise.
        (vsx_extract_<mode>_internal2): Likewise.
        * config/rs6000/constraints.md (wi constraint): Remove a comment
        about DImode not being allowed in Altivec registers.
        (wB constraint): New constraint for constants that can be
        generated in Altivec registers with VSPLTISW/VUPKHSW.
        * config/rs6000/predicates.md (xxspltib_constant_split): Update
        comments.
        (xxspltib_constant_nosplit): Likewise.
        * config/rs6000/rs6000-cpus.def (ISA_2_6_MASKS_SERVER): Add
        support for -mupper-regs-di to enable DImode to go into Altivec
        registers.
        (POWERPC_MASKS): Likewise.
        (power7 cpu): Likewise.
        * config/rs6000/rs6000.opt (-mupper-regs-di): Likewise.
        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Add support
        for DImode being allowed in Altivec registers.  Update wi/wj
        constraints.  Set scalar_in_vmx_p flag.
        (rs6000_option_override_internal): Add checks for -mupper-regs-di.
        (xxspltib_constant_p): Allow CONST_INT's with VOIDmode.  Don't
        return true if we could use VSPLTISW/VUPKHSW instead of XXSPLTIB.
        (rs6000_opt_masks): Add -mupper-regs-di.
        * config/rs6000/rs6000.md (lfiwax): Update clobbers that don't use
        direct move to use wi and not wj.
        (lfiwzx): Likewise.
        (floatsi<mode>2_lfiwax_mem): Combine alternatives into a single
        alternative.
        (floatunssi<mode>2_lfiwzx_mem): Likewise.
        (fix_trunc<mode>di2_fctidz): Change second alternative to allow
        any VSX register, instead of just Altivec registers, to allow
        either operand to be an Altivec register or both.
        (fixuns_trunc<mode>di2_fctiduz): Likewise.
        (movdi_internal32): Add support for -mupper-regs-di.  Add support
        to load constants via XXSPLTIB or VSPLTISW.  Add spacing to allow
        the alternatives and attributes to be lined up to be easier to
        read.
        (movdi_internal64): Likewise.
        (64-bit DImode splitters): Change predicates to only split loading
        up GPR registers.  Add splits for using XXSPLTIB or VSPLTISW to
        load constants in ISA 3.0 or ISA 2.07 respectively.
        * doc/invoke.texi (RS/6000 and PowerPC Options): Document
        -mupper-regs-di.  Update -mupper-regs-df and -mupper-regs-sf to
        mention -mcpu=power9 sets these options.
        * doc/md.texi (PowerPC and IBM RS6000 constraints): Document the
        wB constraint.

2016-06-15  Pitchumani Sivanupandi  <pitchumani.s@atmel.com>

        PR target/67353
        * config/avr/avr.c (avr_set_current_function): Warn misspelled
        interrupt/ signal handler if -Wmisspelled-isr flag is enabled.
        * config/avr/avr.opt (Wmisspelled-isr): New warning flag. Enabled
        by default to warn misspelled interrupt/ signal handler.
        * doc/invoke.texi (AVR Options): Document it. Update description
        for -nodevicelib option.

2016-06-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-simd.md (aarch64_<sur>shll_n<mode>): Clean
        up parentheses.  Use GET_MODE_UNIT_BITSIZE.
        (aarch64_<sur>shll2_n<mode>): Likewise.

2016-06-15  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR middle-end/71529
        * ipa-chkp.c (chkp_build_instrumented_fndecl): Fix
        DECL_CONTEXT for copied arguments.

2016-06-15  Alan Hayward  <alan.hayward@arm.com>

        PR tree-optimization/71483
        * tree-vect-loop.c (vectorizable_live_operation): Pick correct index
        for slp

2016-06-15  Martin Liska  <mliska@suse.cz>

        * predict.c (tree_predict_by_opcode): Call predict_edge_def
        instead of predict_edge w/o a probability.

2016-06-15  Alan Hayward  <alan.hayward@arm.com>

        PR tree-optimization/71439
        * tree-vect-loop.c (vect_analyze_loop_operations): Additional check for
        live PHIs.

2016-06-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * ifcvt.c (bb_ok_for_noce_multiple_sets): Allow simple lowpart
        register subregs in SET_SRC.

2016-06-15  Richard Biener  <rguenther@suse.de>

        * tree-vect-stmts.c (vectorizable_store): Remove strided grouped
        store restrictions.

2016-06-15  Richard Biener  <rguenther@suse.de>

        * tree-vect-data-refs.c (vect_analyze_data_ref_dependence): Do
        not consider dependences between accesses that belong to the
        same group.
        (vect_analyze_data_ref_dependences): Do not analyze read-read
        or self-dependences.

2016-06-14  David Malcolm  <dmalcolm@redhat.com>

        * spellcheck-tree.c: Include spellcheck-tree.h rather than
        spellcheck.h.
        (find_closest_identifier): Reimplement in terms of
        best_match<tree,tree>.
        * spellcheck-tree.h: New file.
        * spellcheck.c (struct edit_distance_traits<const char *>): New
        struct.
        (find_closest_string): Reimplement in terms of
        best_match<const char *, const char *>.
        * spellcheck.h (levenshtein_distance): Move prototype of tree-based
        overload to spellcheck-tree.h.
        (find_closest_identifier): Likewise.
        (struct edit_distance_traits<T>): New template.
        (class best_match): New class.

2016-06-14  David Malcolm  <dmalcolm@redhat.com>

        * selftest-run-tests.c (selftest::run_tests): Call
        selftest::spellcheck_tree_c_tests.
        * selftest.h (selftest::spellcheck_tree_c_tests): New decl.
        * spellcheck-tree.c: Include selftest.h and stringpool.h.
        (selftest::test_find_closest_identifier): New function.
        (selftest::spellcheck_tree_c_tests): New function.
        * spellcheck.c (selftest::test_find_closest_string): Verify that
        the order of the vec does not affect the results for this case.
        (selftest::test_data): New array.
        (selftest::test_metric_conditions): New function.
        (selftest::spellcheck_c_tests): Add a test of case-comparison.
        Call selftest::test_metric_conditions.

2016-06-14  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000-builtin.def (commentary): Typo.
        (BU_P9_MISC_1): Likewise.
        (BU_P9_64BIT_MISC_0): Likewise.
        (BU_P9_MISC_0): Likewise.

2016-06-14  David Malcolm  <dmalcolm@redhat.com>

        * gcc-rich-location.c
        (gcc_rich_location::add_fixit_misspelled_id): New method.
        * gcc-rich-location.h
        (gcc_rich_location::add_fixit_misspelled_id): Add decl.

2016-06-14  Andreas Tobler  <andreast@gcc.gnu.org>

        * config/arm/freebsd.h: Only enable unaligned access for armv6 on
        FreeBSD 11 and above.

2016-06-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (signbittf2): Emit sse_movmskps for TARGET_SSE.

2016-06-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * expmed.h: Close parenthesis in "at your option" in copyright
        boilerplate.
        * lower-subreg.h: Likewise.

2016-06-14  Richard Biener  <rguenther@suse.de>

        PR middle-end/71526
        * genmatch.c (expr::gen_transform): Use in_type for comparisons
        if available.

2015-06-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (aarch64_mask_and_shift_for_ubfiz_p):
        New function.
        (aarch64_rtx_costs): Use it.  Rewrite CONST_INT_P (op1) case to handle
        mask+shift version.
        * config/aarch64/aarch64-protos.h (aarch64_mask_and_shift_for_ubfiz_p):
        New prototype.
        * config/aarch64/aarch64.md (*andim_ashift<mode>_bfiz): Replace
        matching condition with aarch64_mask_and_shift_for_ubfiz_p.

2016-06-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71522
        * tree-ssa.c (non_rewritable_lvalue_p): Do not rewrite non-float
        copying into float copying.

2016-06-14  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/71520
        * tree-ssa-tail-merge.c (find_duplicate): Handle labels.
        (replace_block_by): Move user labels from bb1 to bb2.

2016-06-14  Richard Biener  <rguenther@suse.de>

        PR middle-end/71310
        PR bootstrap/71510
        * expr.h (get_bit_range): Declare.
        * expr.c (get_bit_range): Export.
        * fold-const.c (optimize_bit_field_compare): Use get_bit_range and
        word_mode again to constrain the bitfield access.

2016-06-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71521
        * tree-vrp.c (extract_range_from_binary_expr_1): Guard
        division int_const_binop against zero divisor.

2016-06-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (signbittf2): New expander.
        * config/i386/sse.md (ptesttf2): New insn pattern.

2016-06-13  David Malcolm  <dmalcolm@redhat.com>

        PR bootstrap/71481
        * input.c (selftest::test_reading_source_line): Avoid reading from
        __FILE__ by creating a tempfile with known content and reading
        from that instead.

2016-06-13  David Malcolm  <dmalcolm@redhat.com>

        * pretty-print.c (assert_pp_format_colored): Skip the test if
        GCC_COLORS is set.
        (test_pp_format): Remove comment about GCC_COLORS.

2016-06-13  David Malcolm  <dmalcolm@redhat.com>

        * input.c (test_reading_source_line): Use SELFTEST_LOCATION.
        * pretty-print.c (assert_pp_format_va): Add location param and use
        it with ASSERT_STREQ_AT.
        (assert_pp_format): Add location param and pass it to
        assert_pp_format_va.
        (assert_pp_format_colored): Likewise.
        (ASSERT_PP_FORMAT_1): New.
        (ASSERT_PP_FORMAT_2): New.
        (ASSERT_PP_FORMAT_3): New.
        (test_pp_format): Provide SELFTEST_LOCATION throughout, either
        explicitly, or implicitly via the above macros.
        * selftest.c (selftest::pass): Use a selftest::location rather
        than file and line.
        (selftest::fail): Likewise.  Print the function name.
        (selftest::fail_formatted): Likewise.
        (selftest::assert_streq): Use a selftest::location rather than
        file and line.
        * selftest.h (selftest::location): New struct.
        (SELFTEST_LOCATION): New macro.
        (selftest::pass): Accept a const location & rather than file
        and line.
        (selftest::fail): Likewise.
        (selftest::fail_formatted): Likewise.
        (selftest::assert_streq): Likewise.
        (ASSERT_TRUE): Update for above changes, using SELFTEST_LOCATION.
        (ASSERT_FALSE): Likewise.
        (ASSERT_EQ): Likewise.
        (ASSERT_NE): Likewise.
        (ASSERT_STREQ): Likewise.
        (ASSERT_PRED1): Likewise.
        (ASSERT_STREQ_AT): New macro.

2016-06-13  David Malcolm  <dmalcolm@redhat.com>

        * selftest.c (selftest::fail_formatted): New function.
        (selftest::assert_streq): New function.
        * selftest.h (selftests::fail_formatted): New decl.
        (selftest::assert_streq): New decl.
        (ASSERT_STREQ): Reimplement in terms of selftest::assert_streq.

2016-06-13  Jeff Law  <law@redhat.com>

        PR tree-optimization/71403
        * tree-ssa-threadbackward.c
        (convert_and_register_jump_thread_path): No longer accept reference
        to path.  Do not pop items off the path anymore.
        (fsm_find_control_statement_thread_paths): Do not allow threading
        to a deeper loop nest.  Pop the last item off the path here rather
        than in convert_and_register_jump_thread_path.

2016-06-13  Evandro Menezes  <e.menezes@samsung.com>
            Wilco Dijkstra  <Wilco.Dijkstra@arm.com>

        [AArch64] Emit division using the Newton series

        * config/aarch64/aarch64-protos.h
        (cpu_approx_modes): Add new member "division".
        (aarch64_emit_approx_div): Declare new function.
        * config/aarch64/aarch64.c
        (generic_approx_modes): New member "division".
        (exynosm1_approx_modes): Likewise.
        (xgene1_approx_modes): Likewise.
        (aarch64_emit_approx_div): Define new function.
        * config/aarch64/aarch64.md ("div<mode>3"): New expansion.
        * config/aarch64/aarch64-simd.md ("div<mode>3"): Likewise.
        * config/aarch64/aarch64.opt (-mlow-precision-div): Add new option.
        * doc/invoke.texi (-mlow-precision-div): Describe new option.

2016-06-13  Evandro Menezes  <e.menezes@samsung.com>
            Wilco Dijkstra  <wilco.dijkstra@arm.com>

        [AArch64] Emit square root using the Newton series

        * config/aarch64/aarch64-protos.h
        (aarch64_emit_approx_rsqrt): Replace with new function
        "aarch64_emit_approx_sqrt".
        (cpu_approx_modes): New member "sqrt".
        * config/aarch64/aarch64.c
        (generic_approx_modes): New member "sqrt".
        (exynosm1_approx_modes): Likewise.
        (xgene1_approx_modes): Likewise.
        (aarch64_emit_approx_rsqrt): Replace with new function
        "aarch64_emit_approx_sqrt".
        (aarch64_override_options_after_change_1): Handle new option.
        * config/aarch64/aarch64-simd.md
        (rsqrt<mode>2): Use new function instead.
        (sqrt<mode>2): New expansion and insn definitions.
        * config/aarch64/aarch64.md: Likewise.
        * config/aarch64/aarch64.opt
        (mlow-precision-sqrt): Add new option description.
        * doc/invoke.texi (mlow-precision-sqrt): Likewise.

2016-06-13  Evandro Menezes  <e.menezes@samsung.com>

        [AArch64] Add more choices for the reciprocal square root approximation

        Allow a target to prefer such operation depending on the operation mode.

        * config/aarch64/aarch64-protos.h
        (AARCH64_APPROX_MODE): New macro.
        (AARCH64_APPROX_{NONE,ALL}): Likewise.
        (cpu_approx_modes): New structure.
        (tune_params): New member "approx_modes".
        * config/aarch64/aarch64-tuning-flags.def
        (AARCH64_EXTRA_TUNE_APPROX_RSQRT): Remove macro.
        * config/aarch64/aarch64.c
        (generic_approx_modes): New core "cpu_approx_modes" structure.
        (exynosm1_approx_modes): Likewise.
        (xgene1_approx_modes): Likewise.
        (generic_tunings): New member "approx_modes".
        (cortexa35_tunings): Likewise.
        (cortexa53_tunings): Likewise.
        (cortexa57_tunings): Likewise.
        (cortexa72_tunings): Likewise.
        (exynosm1_tunings): Likewise.
        (thunderx_tunings): Likewise.
        (xgene1_tunings): Likewise.
        (use_rsqrt_p): New argument for the mode and use new member from
        "tune_params".
        (aarch64_builtin_reciprocal): Devise mode from builtin.
        (aarch64_optab_supported_p): New argument for the mode.
        * doc/invoke.texi (-mlow-precision-recip-sqrt): Reword description.

2016-06-13  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/rs6000.h (RS6000_BTM_COMMON): Add the
        RS6000_BTM_MODULO flag into the set of flags that are considered
        to be part of the common configuration.

2016-06-13  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/altivec.h (vec_absd): New macro for vector absolute
        difference unsigned.
        (vec_absdb): New macro for vector absolute difference unsigned
        byte.
        (vec_absdh): New macro for vector absolute difference unsigned
        half-word.
        (vec_absdw): New macro for vector absolute difference unsigned word.
        * config/rs6000/altivec.md (UNSPEC_VADU): New value.
        (vadu<mode>3): New insn.
        (*p9_vadu<mode>3): New insn.
        * config/rs6000/rs6000-builtin.def (vadub): New built-in
        definition.
        (vaduh): New built-in definition.
        (vaduw): New built-in definition.
        (vadu): New overloaded built-in definition.
        (vadub): New overloaded built-in definition.
        (vaduh): New overloaded built-in definition.
        (vaduw): New overloaded built-in definition.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        overloaded vector absolute difference unsigned functions.
        * doc/extend.texi (PowerPC AltiVec Built-in Functions): Document
        the ISA 3.0 vector absolute difference unsigned built-in functions.

2016-06-13  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-sccvn.c (vn_reference_lookup_3): Use a uniform test and
        update shared_lookup_references only once after changing operands.

2016-06-13  Thomas Schwinge  <thomas@codesourcery.com>

        PR middle-end/71373
        * tree-nested.c (convert_nonlocal_omp_clauses)
        (convert_local_omp_clauses): Document missing OMP_CLAUSE_*.

        * tree-cfg.c (edge_to_cases_cleanup): Fix CASE_CHAIN typo.
        * tree.def (CASE_LABEL_EXPR): Likewise.

2016-06-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR bootstrap/71481
        * input.c (test_builtins): Fix an assertion.

2016-06-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (paritydi2): Use ix86_expand_setcc.
        (paritysi2): Ditto.
        (isinfxf2): Ditto.
        (isinf<mode>2): Ditto.

2016-06-13  Uros Bizjak  <ubizjak@gmail.com>

        * ggc-tests.c (test_finalization): Only test need_finalization_p
        for GCC_VERSION >= 4003.

2016-06-13  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/vecintrin.h: Fix file description in comment.

2016-06-13  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390-builtin-types.def: Change builtin type naming
        scheme to match builtin-types.def.

2016-06-13  Marc Glisse  <marc.glisse@inria.fr>

        * fold-const.c (optimize_minmax_comparison): Remove.
        (fold_comparison): Remove call to the above.
        * match.pd (MIN (X, Y) == X, MIN (X, 5) == 0, MIN (X, C1) < C2):
        New transformations.

2016-06-13  Alan Hayward  <alan.hayward@arm.com>

        PR tree-optimization/71416
        * tree-vect-loop.c (vectorizable_live_operation): Let worklist have
        multiple entries

2016-06-13  Martin Liska  <mliska@suse.cz>

        * predict.c (enum predictor_reason): Prefix enum with REASON_.
        (combine_predictions_for_insn): Likewise.
        (prune_predictions_for_bb): Likewise.
        (combine_predictions_for_bb): Likewise.

2016-06-13  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71505
        * tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Make
        assert match comment.

2016-06-13  Marek Polacek  <polacek@redhat.com>

        PR middle-end/71476
        * gimplify.c (maybe_warn_switch_unreachable): Factored out of
        gimplify_switch_expr.
        (warn_switch_unreachable_r): New function.

2016-06-13  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/71379
        * config/s390/s390.c (s390_expand_builtin): Increase MAX_ARGS by
        one.

2016-06-13  Richard Biener  <rguenther@suse.de>

        PR middle-end/64516
        * fold-const.c (fold_unary_loc): Preserve alignment when
        folding a VIEW_CONVERT_EXPR into a MEM_REF.

2016-06-13  Martin Liska  <mliska@suse.cz>

        PR sanitizer/71458
        * toplev.c (process_options): Do not enable -fcheck-pointer-bounds
        w/ -fsanitize=bounds.

2016-06-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_init_builtins): Calculate
        FLOAT128_FTYPE_CONST_STRING function type only once.
        * doc/extend.texi (x86 Built-in Functions): Update text, __float128
        built-in functions are available for x86-32 and x86-64 targets.

2016-06-12  Uros Bizjak  <ubizjak@gmail.com>

        PR target/71241
        * config/i386/i386.i386-builtin-types.def (CONST_STRING):
        New primitive type.
        (FLOAT128_FTYPE_CONST_STRING): New function type.
        * config/i386/i386.c (enum ix86_builtins) [IX86_BUILTIN_NANQ]: New.
        [IX86_BUILTIN_NANSQ]: Ditto.
        (ix86_fold_builtin): Handle IX86_BUILTIN_NANQ and IX86_BUILTIN_NANSQ.
        (ix86_init_builtin_types): Declare const_string_type_node.
        (ix86_init_builtins): Add __builtin_nanq and __builtin_nansq
        builtin functions.
        (ix86_expand_builtin): Handle IX86_BUILTIN_NANQ and IX86_BUILTIN_NANSQ.
        * doc/extend.texi (x86 Built-in Functions): Document
        __builtin_nanq and __builtin_nansq.

2016-06-11  Jiong Wang  <jiong.wang@arm.com>

        PR target/71061
        * config/arm/arm-protos.h (arm_attr_length_pop_multi): New declaration.
        * config/arm/arm.c (arm_attr_length_pop_multi): New function to return
        length for pop patterns.
        (arm_attr_length_push_multi): Update comments.
        * config/arm/arm.md (*load_multiple_with_writeback): Set "length"
        attribute.
        (*pop_multiple_with_writeback_and_return): Likewise.
        (*pop_multiple_with_return): Likewise.

2016-06-11  Segher Boessenkool  <segher@kernel.crashing.org>

        PR middle-end/71310
        * fold-const.c (optimize_bit_field_compare): Don't try to use
        word_mode unconditionally for reading the bit field, look at
        DECL_BIT_FIELD_REPRESENTATIVE instead.

2016-06-11  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/71478
        * tree-ssa-reassoc.c (reassociate_bb): Remove (-1) from ops list for
        vector integer type.

2016-06-10  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/71494
        * tree-nested.c (convert_nonlocal_reference_stmt): For GIMPLE_GOTO
        without LABEL_DECL, set *handled_ops_p to false instead of true.

2016-06-10  Martin Sebor  <msebor@redhat.com>

        PR c/71392
        * builtin-attrs.def (ATTR_NOTHROW_NONNULL_LEAF_LIST): New macro.
        (ATTR_NOTHROW_NONNULL_TYPEGENERIC_LEAF): Same.
        * builtins.def (BUILT_IN_SADD_OVERFLOW, BUILT_IN_SADDL_OVERFLOW): Use
        them.
        (BUILT_IN_SADDLL_OVERFLOW, BUILT_IN_SSUB_OVERFLOW): Same.
        (BUILT_IN_SSUBL_OVERFLOW, BUILT_IN_SSUBLL_OVERFLOW): Same.
        (BUILT_IN_SMUL_OVERFLOW, BUILT_IN_SMULL_OVERFLOW): Same.
        (BUILT_IN_SMULLL_OVERFLOW, BUILT_IN_UADD_OVERFLOW): Same.
        (BUILT_IN_UADDL_OVERFLOW, BUILT_IN_UADDLL_OVERFLOW): Same.
        (BUILT_IN_USUB_OVERFLOW, BUILT_IN_USUBL_OVERFLOW): Same.
        (BUILT_IN_USUBLL_OVERFLOW, BUILT_IN_UMUL_OVERFLOW): Same.
        (BUILT_IN_UMULL_OVERFLOW, BUILT_IN_UMULLL_OVERFLOW): Same.

2016-06-10  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * config/arm/arm.h (pool_vector_label,
        return_used_this_function): Remove.

2016-06-10  Jeff Law  <law@redhat.com>

        PR tree-optimization/71335
        * tree-ssa-threadbackward.c (profitable_jump_thread_path): Filter out
        zero length paths here.
        (convert_and_register_jump_thread_path): Remove hacks related to
        duplicated blocks in the jump thread path.
        (fsm_find_control_statement_thread_paths): Avoid putting the same
        block on the thread path twice, but ensure the thread path is
        unchanged from the caller's point of view.

2016-06-10  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (predict_loops): Remove PRED_LOOP_BRANCH.
        * predict.def (PRED_LOOP_BRANCH): Remove.

2016-06-10  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (OBJS): Add ggc-tests.o.
        (GTFILES): Add ggc-tests.c.
        * ggc-tests.c: New file.
        * selftest-run-tests.c (selftest::run_tests): Call
        selftest::ggc_tests_c_tests.
        * selftest.h (selftest::ggc_tests_c_tests): New prototype.

2016-06-10  Alexander Monakov  <amonakov@ispras.ru>

        * match.pd (-1 / B < A): Use :c to avoid pattern duplication.

2016-06-10  Maxim Ostapenko  <m.ostapenko@samsung.com>

        PR sanitizer/71480
        * varasm.c (place_block_symbol): Adjust alignment for asan protected
        STRING_CSTs even if TREE_CONSTANT_POOL_ADDRESS_P.

2016-06-10  Jan Hubicka  <hubicka@ucw.cz>

        * profile.c: Include cfgloop.h.
        (branch_prob): Compute estimated number of iterations.
        * tree-ssa-loop-niter.c (estimate_numbers_of_iterations_loop): Do not
        recompute estimate number of iterations from profile.

2016-06-10  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR inline-asm/68843
        * reg-stack.c (check_asm_stack_operands): Explicit input arguments
        must be grouped on top of stack.  Don't force early clobber
        on ordinary reg outputs.

2016-06-10  Richard Biener  <rguenther@suse.de>

        * targhooks.c (default_builtin_vectorization_cost): Adjust
        vec_construct cost.

2016-06-10  Richard Biener  <rguenther@suse.de>

        * gimple-fold.c (gimple_fold_builtin_memory_op): Make sure
        to fold the RHS to a constant if possible.

2016-06-10  Thomas Schwinge  <thomas@codesourcery.com>

        PR middle-end/71373
        * tree-nested.c (convert_nonlocal_omp_clauses)
        (convert_local_omp_clauses): Handle OMP_CLAUSE_ASYNC,
        OMP_CLAUSE_WAIT, OMP_CLAUSE_INDEPENDENT, OMP_CLAUSE_AUTO,
        OMP_CLAUSE__CACHE_, OMP_CLAUSE_TILE.

        * gimplify.c (gimplify_adjust_omp_clauses): Discard
        OMP_CLAUSE_TILE.
        * omp-low.c (scan_sharing_clauses): Don't expect OMP_CLAUSE_TILE.

        * omp-low.c (scan_sharing_clauses): Don't expect
        OMP_CLAUSE__CACHE_.

2016-06-10  Alan Hayward  <alan.hayward@arm.com>

        PR tree-optimization/71407
        PR tree-optimization/71416
        * tree-vect-loop.c (vectorizable_live_operation): Use vectype for
        BIT_FIELD_REF type.

2016-06-10  Richard Biener  <rguenther@suse.de>

        PR middle-end/71477
        * cfgloop.c (alloc_loop): Initialize nb_iterations_likely_upper_bound.

2016-06-09  Eric Botcazou  <ebotcazou@adacore.com>

        * df-problems.c (df_note_bb_compute): Guard use of DF_INSN_INFO_GET.

2016-06-09  Vladimir Makarov  <vmakarov@redhat.com>
            Jiong Wang  <jiong.wang@arm.com>

        PR rtl-optimization/70751
        * lra-constraints.c (process_alt_operands): Recognize Non-pseudo
        spilled into memory.

2016-06-09  Jonathan Yong  <10walls@gmail.com>

        Revert:
        2015-09-21  Jonathan Yong  <10walls@gmail.com>

        * config/i386/cygwin.h (STARTFILE_SPEC): Explicitly search
        sysroot/usr/lib/32api for additional win32 libraries,
        fixes failing Cygwin bootstrapping.

2016-06-09  Marcin Baczyński  <marbacz@gmail.com>

        * diagnostic.h (diagnostic_line_cutoff, diagnostic_flush_buffer):
        Delete.

2016-06-09  David Malcolm  <dmalcolm@redhat.com>

        PR bootstrap/71471
        * pretty-print.c (pp_indent): Specify that %p is printed in a
        host-dependent manner.
        (test_pp_format): Remove the test for %p.

2016-06-09  Maciej W. Rozycki  <macro@imgtec.com>

        * config/mips/mips.c (mips_output_jump): Fix formatting.

2016-06-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71462
        * tree-ssa-loop-manip.c (find_uses_to_rename): Guard against
        removed blocks.

2016-06-09  Martin Liska  <mliska@suse.cz>

        * predict.c (dump_prediction): Add new argument.
        (enum predictor_reason): New enum.
        (struct predictor_hash): New struct.
        (predictor_hash::hash): New function.
        (predictor_hash::equal): Likewise.
        (not_removed_prediction_p): New function.
        (prune_predictions_for_bb): Likewise.
        (combine_predictions_for_bb): Prune predictions.

2016-06-09  Martin Liska  <mliska@suse.cz>

        * predict.c (filter_predictions): New function.
        (remove_predictions_associated_with_edge): Use the filter
        function.
        (equal_edge_p): New function.

2016-06-09  Stefan Bruens  <stefan.bruens@rwth-aachen.de>

        * doc/invoke.texi (ARM Options): Use lexicographical ordering.
        Correct usage of @samp vs @option, add @samp where appropriate.
        Add -march={armv6k,armv6z,arm6zk}, remove -march=ep9312.
        Add armv6s-m and document it, as it is no official ARM name.

2016-06-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * ifcvt.c (struct noce_if_info): Add transform_name field.
        (noce_try_move): Set if_info->transform_name to the function name.
        (noce_try_ifelse_collapse): Likewise.
        (noce_try_store_flag): Likewise.
        (noce_try_inverse_constants): Likewise.
        (noce_try_store_flag_constants): Likewise.
        (noce_try_addcc): Likewise.
        (noce_try_store_flag_mask): Likewise.
        (noce_try_cmove): Likewise.
        (noce_try_cmove_arith): Likewise.
        (noce_try_minmax): Likewise.
        (noce_try_abs): Likewise.
        (noce_try_sign_mask): Likewise.
        (noce_try_bitop): Likewise.
        (noce_convert_multiple_sets): Likewise.
        (noce_process_if_block): Print if_info->transform_name to
        dump_file if transformation succeeded.

2016-06-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/cortex-a57.md (cortex_a57_alu):
        Handle csel type.

2016-06-08  Martin Sebor  <msebor@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR c++/70507
        PR c/68120
        * builtins.def (BUILT_IN_ADD_OVERFLOW_P, BUILT_IN_SUB_OVERFLOW_P,
        BUILT_IN_MUL_OVERFLOW_P): New builtins.
        * builtins.c: Include gimple-fold.h.
        (fold_builtin_arith_overflow): Handle
        BUILT_IN_{ADD,SUB,MUL}_OVERFLOW_P.
        (fold_builtin_3): Likewise.
        * doc/extend.texi (Integer Overflow Builtins): Document
        __builtin_{add,sub,mul}_overflow_p.

2016-06-08  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * config/sparc/driver-sparc.c (cpu_names): Fix the entry for the
        SPARC-M7 and add an entry for SPARC-S7 cpus (Sonoma).

2016-06-08  Alan Lawrence  <alan.lawrence@arm.com>

        * config/aarch64/aarch64.c (aarch64_function_arg_alignment):
        Rewrite, looking one level down for records and arrays.

2016-06-08  David Malcolm  <dmalcolm@redhat.com>

        * pretty-print.c: Include "selftest.h".
        (pp_format): Fix comment.
        (identifier_to_locale): Likewise.
        (selftest::test_basic_printing): New function.
        (selftest::assert_pp_format): New function.
        (selftest::test_pp_format): New function.
        (selftest::pretty_print_c_tests): New function.
        * selftest-run-tests.c (selftest::run_tests): Call
        selftest::pretty_print_c_tests.
        * selftest.h (pretty_print_c_tests): New declaration.

2016-06-07  Jan Hubicka  <hubicka@ucw.cz>

        * invoke.texi (max-loop-headers-insns): Document.
        * params.def (PARAM_MAX_LOOP_HEADER_INSNS): New.
        * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): Update comment.
        (ch_base::copy_headers): Use PARAM_MAX_LOOP_HEADER_INSNS.

2016-06-08  Richard Biener  <rguenther@suse.de>

        * tree-vect-stmts.c (vectorizable_load): Remove restrictions
        on strided SLP loads and fall back to scalar loads in case
        we can't chunk them.

2016-06-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71452
        * tree-ssa.c (non_rewritable_lvalue_p): Make sure that the
        type used for the SSA rewrite has enough precision to cover
        the dynamic type of the location.

2016-06-08  Jakub Jelinek  <jakub@redhat.com>
            Richard Biener  <rguenther@suse.de>

        PR c++/71448
        * fold-const.c (fold_comparison): Handle CONSTANT_CLASS_P (base0)
        the same as DECL_P (base0) for indirect_base0.  Use equality_code
        in one further place.

2016-06-08  Richard Sandiford  <richard.sandiford@arm.com>

        * expmed.c (store_bit_field_1): Do not restrict a multiword op0
        to one word if the field is known to overlap other words.
        (extract_bit_field_1): Likewise.
        (store_split_bit_field): Remove compensating code.
        (extract_split_bit_field): Likewise.

2016-06-08  Bernd Schmidt  <bschmidt@redhat.com>

        PR debug/71432
        PR ada/71413
        * tree-ssa-strlen.c (handle_builtin_memcmp): Ignore debug insns.

2016-06-08  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-builtins.def (faddp): New builtins for modes in
        VDQF.
        * config/aarch64/aarch64-simd.md (aarch64_faddp<mode>): New.
        (arch64_addpv4sf): Delete.
        (reduc_plus_scal_v4sf): Use "gen_aarch64_faddpv4sf" instead of
        "gen_aarch64_addpv4sf".
        * config/aarch64/arm_neon.h (vpadd_f32): Remove inline assembly.  Use
        builtin.
        (vpadds_f32): Likewise.
        (vpaddq_f32): Likewise.
        (vpaddq_f64): Likewise.

2016-06-08  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-builtins.def (fabd): New builtins for modes
        VALLF.
        * config/aarch64/aarch64-simd.md (fabd<mode>_3): Extend modes from VDQF
        to VALLF.  Rename to "fabd<mode>3".
        "*fabd_scalar<mode>3): Delete.
        * config/aarch64/arm_neon.h (vabds_f32): Remove inline assembly.
        Use builtin.
        (vabdd_f64): Likewise.
        (vabd_f32): Likewise.
        (vabd_f64): Likewise.
        (vabdq_f32): Likewise.
        (vabdq_f64): Likewise.

2016-06-08  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-builtins.def (rsqrts): New builtins for modes
        VALLF.
        * config/aarch64/aarch64-simd.md (aarch64_rsqrts_<mode>3): Rename to
        "aarch64_rsqrts<mode>".
        * config/aarch64/aarch64.c (get_rsqrts_type): Update gen* name.
        * config/aarch64/arm_neon.h (vrsqrtss_f32): Remove inline assembly.  Use
        builtin.
        (vrsqrtsd_f64): Likewise.
        (vrsqrts_f32): Likewise.
        (vrsqrts_f64): Likewise.
        (vrsqrtsq_f32): Likewise.
        (vrsqrtsq_f64): Likewise.

2016-06-08  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-builtins.def (rsqrte): New builtins for modes
        VALLF.
        * config/aarch64/aarch64-simd.md (aarch64_rsqrte_<mode>2): Rename to
        "aarch64_rsqrte<mode>".
        * config/aarch64/aarch64.c (get_rsqrte_type): Update gen* name.
        * config/aarch64/arm_neon.h (vrsqrts_f32): Remove inline assembly.  Use
        builtin.
        (vrsqrted_f64): Likewise.
        (vrsqrte_f32): Likewise.
        (vrsqrte_f64): Likewise.
        (vrsqrteq_f32): Likewise.
        (vrsqrteq_f64): Likewise.

2016-06-08  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-builtins.def (scvtf): Register vector modes.
        (ucvtf): Likewise.
        (fcvtzs): Likewise.
        (fcvtzu): Likewise.
        * config/aarch64/aarch64-simd.md
        (<FCVT_F2FIXED:fcvt_fixed_insn><VDQF:mode>3): New.
        (<FCVT_FIXED2F:fcvt_fixed_insn><VDQ_SDI:mode>3): Likewise.
        * config/aarch64/arm_neon.h (vcvt_n_f32_s32): Remove inline assembly.
        Use builtin.
        (vcvt_n_f32_u32): Likewise.
        (vcvt_n_s32_f32): Likewise.
        (vcvt_n_u32_f32): Likewise.
        (vcvtq_n_f32_s32): Likewise.
        (vcvtq_n_f32_u32): Likewise.
        (vcvtq_n_f64_s64): Likewise.
        (vcvtq_n_f64_u64): Likewise.
        (vcvtq_n_s32_f32): Likewise.
        (vcvtq_n_s64_f64): Likewise.
        (vcvtq_n_u32_f32): Likewise.
        (vcvtq_n_u64_f64): Likewise.
        * config/aarch64/iterators.md (VDQ_SDI): New mode iterator.
        (VSDQ_SDI): Likewise.
        (fcvt_target): Support V4DI, V4SI and V2SI.
        (FCVT_TARGET): Likewise.

2016-06-08  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-builtins.c (TYPES_BINOP_USS): New
        (TYPES_BINOP_SUS): Likewise.
        (aarch64_simd_builtin_data): Update include file name.
        (aarch64_builtins): Likewise.
        * config/aarch64/aarch64-simd-builtins.def (scvtf): New entries
        for conversion between scalar float-point and fixed-point.
        (ucvtf): Likewise.
        (fcvtzs): Likewise.
        (fcvtzu): Likewise.
        * config/aarch64/aarch64.md
        (<FCVT_F2FIXED:fcvt_fixed_insn><GPF:mode>3: New
        pattern for conversion between scalar float to fixed-pointer.
        (<FCVT_FIXED2F:fcvt_fixed_insn><GPI:mode>: Likewise.
        (UNSPEC_FCVTZS): New UNSPEC enumeration.
        (UNSPEC_FCVTZU): Likewise.
        (UNSPEC_SCVTF): Likewise.
        (UNSPEC_UCVTF): Likewise.
        * config/aarch64/arm_neon.h (vcvtd_n_f64_s64): Remove inline assembly.
        Use builtin.
        (vcvtd_n_f64_u64): Likewise.
        (vcvtd_n_s64_f64): Likewise.
        (vcvtd_n_u64_f64): Likewise.
        (vcvtd_n_f32_s32): Likewise.
        (vcvts_n_f32_u32): Likewise.
        (vcvtd_n_s32_f32): Likewise.
        (vcvts_n_u32_f32): Likewise.
        * config/aarch64/iterators.md (fcvt_target): Support integer to float
        mapping.
        (FCVT_TARGET): Likewise.
        (FCVT_FIXED2F): New iterator.
        (FCVT_F2FIXED): Likewise.
        (fcvt_fixed_insn): New define_int_attr.

2016-06-07  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (pass_strip_predict_hints::execute): Cleanup CFG if
        some statements was removed.

2016-06-08  Alan Hayward  <alan.hayward@arm.com>

        * tree-vect-data-refs.c (vect_analyze_data_refs): Remove debug newline.
        * tree-vect-loop-manip.c (slpeel_make_loop_iterate_ntimes): likewise.
        (vect_can_advance_ivs_p): likewise.
        (vect_update_ivs_after_vectorizer): likewise.
        * tree-vect-loop.c (vect_determine_vectorization_factor): likewise.
        (vect_analyze_scalar_cycles_1): likewise.
        (vect_analyze_loop_operations): likewise.
        (report_vect_op): likewise.
        (vect_is_slp_reduction): likewise.
        (vect_is_simple_reduction): likewise.
        (get_initial_def_for_induction): likewise.
        (vect_transform_loop): likewise.
        * tree-vect-patterns.c (vect_recog_dot_prod_pattern): likewise.
        (vect_recog_sad_pattern): likewise.
        (vect_recog_widen_sum_pattern): likewise.
        (vect_recog_widening_pattern): likewise.
        (vect_recog_divmod_pattern): likewise.
        * tree-vect-slp.c (vect-build-slp_tree_1): likewise.
        (vect_analyze_slp_instance): likewise.
        (vect_transform_slp_perm_load): likewise.
        (vect_schedule_slp_instance): likewise.

2016-06-07  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (predict_iv_comparison): Mention that heuristics is broken.
        (return_prediction): PRED_CONST_RETURN predict return as not taken.
        * predict.def (PRED_CONTINUE): Change hitrate 50->67
        (PRED_LOOP_BRANCH): Document predictor as broken.
        (PRED_LOOP_EXIT): Change hitrate 91->92.
        (PRED_LOOP_EXTRA_EXIT): Change hitrate 91->83.
        (PRED_POINTER, PRED_TREE_POINTER): Change hitrate 85->70.
        (PRED_OPCODE_POSITIVE): Change hitrate 79->64.
        (PRED_OPCODE_NONEQUAL): Change hitrate 91->66.
        (PRED_TREE_OPCODE_POSITIVE): Change hitrate 73->64
        (PRED_TREE_OPCODE_NONEQUAL): Chnage hitrate 72->66
        (PRED_CALL): Chane hitrate 71->67.
        (PRED_TREE_EARLY_RETURN): Document issues, change hitrate 61->54.
        (PRED_GOTO): Document as unused right now.
        (PRED_CONST_RETURN): Change hitrate 67->69
        (PRED_NEGATIVE_RETURN): Change hitrate 96->98
        (PRED_NULL_RETURN): Change hitrate 91->90.
        (PRED_LOOP_IV_COMPARE_GUESS): Change hitrate to 98.
        (PRED_FORTRAN_FAIL_ALLOC): Change hitrate to 62; document issues.
        (PRED_FORTRAN_SIZE_ZERO): Change hitrate to 99.

2016-06-07  Bill Seurer  <seurer@linux.vnet.ibm.com>

        * config/rs6000/altivec.h: Add __builtin_vec_mul.
        * config/rs6000/rs6000-builtin.def (vec_mul): Change vec_mul to a
        special case Altivec builtin.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Remove
        VSX_BUILTIN_VEC_MUL (replaced with special case code).
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Add
        code for ALTIVEC_BUILTIN_VEC_MUL.
        * config/rs6000/rs6000.c (altivec_init_builtins): Add definition
        for __builtin_vec_mul.

2016-06-07  Peter Bergner  <bergner@vnet.ibm.com>

        * doc/invoke.texi (RS/6000 and PowerPC Options): Document -mhtm and
        -mno-htm.

2016-06-07  David Malcolm  <dmalcolm@redhat.com>

        * spellcheck.c (selftest::test_find_closest_string): New function.
        (spellcheck_c_tests): Call the above.

2016-06-07  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * simplify-rtx.c (simplify_cond_clz_ctz): Delete 'mode' local variable.

2016-06-07  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (avx_vec_concat<mode>): Add v=v,vm and
        Yv=Yv,C alternatives.

2016-06-07  Richard Biener  <rguenther@suse.de>

        PR c/61564
        * common.opt (ffast-math): Make Optimization.

2016-06-07  Simon Dardis  <simon.dardis@imgtec.com>
            Prachi Godbole  <prachi.godbole@imgtec.com>

        * config/mips/p5600.md (p5600_fpu_fadd): Remove checking for
        `fabs' and `fneg' type attributes.
        (p5600_fpu_fabs): Add `fmove' to the comment.

2016-06-07  Jan Hubicka  <hubicka@ucw.cz>

        * gimple.c: Include builtins.h
        (gimple_inexpensive_call_p): New function.
        * gimple.h (gimple_inexpensive_call_p): Declare.
        * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): Use it.
        * tree-ssa-loop-ivcanon.c (tree_estimate_loop_size): Likewise;
        fix formatting.

2016-06-07  Paolo Carlini  <paolo.carlini@oracle.com>

        * diagnostic.c (diagnostic_impl, diagnostic_n_impl): New.
        (inform, inform_at_rich_loc, inform_n, warning, warning_at,
        warning_at_rich_loc, warning_n, pedwarn, permerror,
        permerror_at_rich_loc, error, error_n, error_at, error_at_rich_loc,
        sorry, fatal_error, internal_error, internal_error_no_backtrace):
        Use the above.

2016-06-07  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71428
        * tree-ssa-math-opts.c (perform_symbolic_merge): Properly distinguish
        BIT_FIELD_REF op vs. load.

2016-06-07  Richard Biener  <rguenther@suse.de>

        PR middle-end/71423
        * match.pd ((X | ~Y) -> Y <= X): Properly invert the comparison
        for signed ops.

2016-06-06  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.md (call): Generate indirect long calls to non-local
        functions on TARGET_64BIT.
        (call_value): Likewise.

2016-06-06  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.md (call_val_reg_64bit): Remove "reg: DI " clobber from
        pattern and subsequent splitters.
        (call_val_reg_64bit_post_reload): Likewise.

2016-06-07  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/71408
        * tree-ssa-reassoc.c (zero_one_operation): Fix NEGATE_EXPR operand for
        propagate_op_to_single_use.

2016-06-07  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/71281
        * tree-ssa-reassoc.c (reassociate_bb): Set uid for negate stmt.

2016-06-07  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (enum ix86_enitity): Add X86_DIRFLAG.
        (enum x86_dirflag_state): New enum.
        (NUM_MODES_FOR_MODE_SWITCHING): Add X86_DIRFLAG_ANY.
        (machine_function): Remove needs_cld.
        (ix86_current_function_needs_cld): Remove.
        * config/i386/i386.c (ix86_set_func_type): Set
        ix86_optimize_mode_switching[X86_DIRFLAG] to 1.
        (ix86_expand_prologue): Do not emit CLD here.
        (ix86_dirflag_mode_needed): New function.
        (ix86_dirflag_mode_entry): Ditto.
        (ix86_mode_needed): Handle X86_DIRFLAG entity.
        (ix86_mode_after): Ditto.
        (ix86_mode_entry): Ditto.
        (ix86_mode_exit): Ditto.
        (ix86_emit_mode_set): Ditto.
        * config/i386/i386.md (strmov_singleop): Set
        ix86_optimize_mode_switching[X86_DIRFLAG] to 1 for TARGET_CLD.
        Do not set ix86_current_function_needs_cld.
        (rep_mov): Ditto.
        (strset_singleop): Ditto.
        (rep_stos): Ditto.
        (cmpstrnqi_nz_1): Ditto.
        (cmpstrnqi_1): Ditto.
        (strlenqi_1): Ditto.

2016-06-06  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/71259
        * tree-vect-slp.c (vect_get_constant_vectors): For
        VECTOR_BOOLEAN_TYPE_P, return all ones constant instead of
        one for constant op, and use COND_EXPR for non-constant.

2016-06-06  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (OBJS): Add function-tests.o,
        hash-map-tests.o, hash-set-tests.o, rtl-tests.o,
        selftest-run-tests.o.
        (OBJS-libcommon): Add selftest.o.
        (OBJS-libcommon-target): Add selftest.o.
        (all.internal): Add "selftest".
        (all.cross): Likewise.
        (selftest): New phony target.
        (s-selftest): New target.
        (selftest-gdb): New phony target.
        (COLLECT2_OBJS): Add selftest.o.
        * bitmap.c: Include "selftest.h".
        (selftest::test_gc_alloc): New function.
        (selftest::test_set_range): New function.
        (selftest::test_clear_bit_in_middle): New function.
        (selftest::test_copying): New function.
        (selftest::test_bitmap_single_bit_set_p): New function.
        (selftest::bitmap_c_tests): New function.
        * common.opt (fself-test): New.
        * diagnostic-show-locus.c: Include "selftest.h".
        (make_range): New function.
        (test_range_contains_point_for_single_point): New function.
        (test_range_contains_point_for_single_line): New function.
        (test_range_contains_point_for_multiple_lines): New function.
        (assert_eq): New function.
        (test_get_line_width_without_trailing_whitespace): New function.
        (selftest::diagnostic_show_locus_c_tests): New function.
        * et-forest.c: Include "selftest.h".
        (selftest::test_single_node): New function.
        (selftest::test_simple_tree): New function.
        (selftest::test_disconnected_nodes): New function.
        (selftest::et_forest_c_tests): New function.
        * fold-const.c: Include "selftest.h".
        (selftest::assert_binop_folds_to_const): New function.
        (selftest::assert_binop_folds_to_nonlvalue): New function.
        (selftest::test_arithmetic_folding): New function.
        (selftest::fold_const_c_tests): New function.
        * function-tests.c: New file.
        * gimple.c: Include "selftest.h".
        Include "gimple-pretty-print.h".
        (selftest::verify_gimple_pp): New function.
        (selftest::test_assign_single): New function.
        (selftest::test_assign_binop): New function.
        (selftest::test_nop_stmt): New function.
        (selftest::test_return_stmt): New function.
        (selftest::test_return_without_value): New function.
        (selftest::gimple_c_tests): New function.
        * hash-map-tests.c: New file.
        * hash-set-tests.c: New file.
        * input.c: Include "selftest.h".
        (selftest::assert_loceq): New function.
        (selftest::test_accessing_ordinary_linemaps): New function.
        (selftest::test_unknown_location): New function.
        (selftest::test_builtins): New function.
        (selftest::test_reading_source_line): New function.
        (selftest::input_c_tests): New function.
        * rtl-tests.c: New file.
        * selftest-run-tests.c: New file.
        * selftest.c: New file.
        * selftest.h: New file.
        * spellcheck.c: Include "selftest.h".
        (selftest::levenshtein_distance_unit_test_oneway): New function,
        adapted from testsuite/gcc.dg/plugin/levenshtein_plugin.c.
        (selftest::levenshtein_distance_unit_test): Likewise.
        (selftest::spellcheck_c_tests): Likewise.
        * toplev.c: Include selftest.h.
        (toplev::run_self_tests): New.
        (toplev::main): Handle -fself-test.
        * toplev.h (toplev::run_self_tests): New.
        * tree.c: Include "selftest.h".
        (selftest::test_integer_constants): New function.
        (selftest::test_identifiers): New function.
        (selftest::test_labels): New function.
        (selftest::tree_c_tests): New function.
        * tree-cfg.c: Include "selftest.h".
        (selftest::push_fndecl): New function.
        (selftest::test_linear_chain): New function.
        (selftest::test_diamond): New function.
        (selftest::test_fully_connected): New function.
        (selftest::tree_cfg_c_tests): New function.
        * vec.c: Include "selftest.h".
        (selftest::safe_push_range): New function.
        (selftest::test_quick_push): New function.
        (selftest::test_safe_push): New function.
        (selftest::test_truncate): New function.
        (selftest::test_safe_grow_cleared): New function.
        (selftest::test_pop): New function.
        (selftest::test_safe_insert): New function.
        (selftest::test_ordered_remove): New function.
        (selftest::test_unordered_remove): New function.
        (selftest::test_block_remove): New function.
        (selftest::reverse_cmp): New function.
        (selftest::test_qsort): New function.
        (selftest::vec_c_tests): New function.c.
        * wide-int.cc: Include selftest.h and wide-int-print.h.
        (selftest::from_int <wide_int>): New function.
        (selftest::from_int <offset_int>): New function.
        (selftest::from_int <widest_int>): New function.
        (selftest::assert_deceq): New function.
        (selftest::assert_hexeq): New function.
        (selftest::test_printing <VALUE_TYPE>): New function template.
        (selftest::test_ops <VALUE_TYPE>): New function template.
        (selftest::test_comparisons <VALUE_TYPE>): New function template.
        (selftest::run_all_wide_int_tests <VALUE_TYPE>): New function
        template.
        (selftest::wide_int_cc_tests): New function.

2016-06-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR middle-end/37780
        * ifcvt.c (noce_try_ifelse_collapse): New function.
        Declare prototype.
        (noce_process_if_block): Call noce_try_ifelse_collapse.
        * simplify-rtx.c (simplify_cond_clz_ctz): New function.
        (simplify_ternary_operation): Use the above to simplify
        conditional CLZ/CTZ expressions.

2016-06-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR middle-end/37780
        * config/aarch64/aarch64.md (ctz<mode>2): Convert to
        define_insn_and_split.

2016-06-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR middle-end/37780
        * config/arm/arm.md (ctzsi2): Convert to define_insn_and_split.

2016-06-06  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c/24414
        * cfgexpand.c (expand_asm_loc): Remove handling for ADDR_EXPR.
        Implicitly clobber memory for basic asm with non-empty assembler
        string.  Use targetm.md_asm_adjust also here.
        * compare-elim.c (arithmetic_flags_clobber_p): Use asm_noperands here.
        * final.c (final_scan_insn): Handle basic asm in PARALLEL block.
        * gimple.c (gimple_asm_clobbers_memory_p): Handle basic asm with
        non-empty assembler string.
        * ira.c (compute_regs_asm_clobbered): Use asm_noperands here.
        * recog.c (asm_noperands): Handle basic asm in PARALLEL block.
        (decode_asm_operands): Handle basic asm in PARALLEL block.
        (extract_insn): Handle basic asm in PARALLEL block.
        * doc/extend.texi: Mention new behavior of basic asm.
        * config/ia64/ia64 (rtx_needs_barrier): Handle ASM_INPUT here.
        * config/pa/pa.c (branch_to_delay_slot_p, branch_needs_nop_p,
        branch_needs_nop_p): Use asm_noperands.

2016-06-06  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * config/sparc/sparc.md (cpu): Add niagara7 cpu type.
        Include the M7 SPARC DFA scheduler.
        New attribute v3pipe.
        Annotate insns with v3pipe where appropriate.
        Define cpu_feature vis4.
        Add lzd instruction type and set it on clzdi_sp64 and clzsi_sp64.
        Add (V8QI "8") to vbits.
        Add insns {add,sub}v8qi3
        Add insns ss{add,sub}v8qi3
        Add insns us{add,sub}{v8qi,v4hi}3
        Add insns {min,max}{v8qi,v4hi,v2si}3
        Add insns {minu,maxu}{v8qi,v4hi,v2si}3
        Add insns fpcmp{le,gt,ule,ug,ule,ugt}{8,16,32}_vis.
        * config/sparc/niagara4.md: Add a comment explaining the
        discrepancy between the documented latenty numbers and the
        implemented ones.
        * config/sparc/niagara7.md: New file.
        * configure.ac (HAVE_AS_SPARC5_VIS4): Define if the assembler
        supports SPARC5 and VIS 4.0 instructions.
        * configure: Regenerate.
        * config.in: Likewise.
        * config.gcc: niagara7 is a supported cpu in sparc*-*-* targets.
        * config/sparc/sol2.h (ASM_CPU32_DEFAUILT_SPEC): Set for
        TARGET_CPU_niagara7.
        (ASM_CPU64_DEFAULT_SPEC): Likewise.
        (CPP_CPU_SPEC): Handle niagara7.
        (ASM_CPU_SPEC): Likewise.
        * config/sparc/sparc-opts.h (processor_type): Add
        PROCESSOR_NIAGARA7.
        (mvis4): New option.
        * config/sparc/sparc.h (TARGET_CPU_niagara7): Define.
        (AS_NIAGARA7_FLAG): Define.
        (ASM_CPU64_DEFAULT_SPEC): Set for niagara7.
        (CPP_CPU64_DEFAULT_SPEC): Likewise.
        (CPP_CPU_SPEC): Handle niagara7.
        (ASM_CPU_SPEC): Likewise.
        * config/sparc/sparc.c (niagara7_costs): Define.
        (sparc_option_override): Handle niagara7 and adjust cache-related
        parameters with better values for niagara cpus.  Also support VIS4.
        (sparc32_initialize_trampoline): Likewise.
        (sparc_use_sched_lookahead): Likewise.
        (sparc_issue_rate): Likewise.
        (sparc_register_move_cost): Likewise.
        (dump_target_flag_bits): Support VIS4.
        (sparc_vis_init_builtins): Likewise.
        (sparc_builtins): Likewise.
        * config/sparc/sparc-c.c (sparc_target_macros): Define __VIS__ for
        VIS4 4.0.
        * config/sparc/driver-sparc.c (cpu_names): Add SPARC-M7 and
        UltraSparc M7.
        * config/sparc/sparc.opt (sparc_processor_type): New value
        niagara7.
        * config/sparc/visintrin.h (__attribute__): Prototypes for the
        VIS4 builtins.
        * doc/invoke.texi (SPARC Options): Document -mcpu=niagara7 and
        -mvis4.
        * doc/extend.texi (SPARC VIS Built-in Functions): Document the
        VIS4 builtins.

2016-06-06  Jonathan Wakely  <jwakely@redhat.com>

        * doc/sourcebuild.texi (Directives): Remove extra closing braces.

2016-06-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71398
        * tree-ssa-loop-ivcanon.c (unloop_loops): First unloop, then
        remove edges.

2016-06-05  James Bowman  <james.bowman@ftdichip.com>

        * config/ft32/ft32.c (ft32_setup_incoming_varargs,
        ft32_expand_prolog, ft32_expand_epilogue):
        Handle pretend_args.
        * config/ft32/ft32.h: Remove OUTGOING_REG_PARM_STACK_SPACE.
        * config/ft32/ft32.md: Add pretend_returner.

2016-06-06  Uros Bizjak  <ubizjak@gmail.com>

        PR target/71389
        * config/i386/i386.c (ix86_avx256_split_vector_move_misalign):
        Copy op1 RTX to avoid invalid sharing.
        (ix86_expand_vector_move_misalign): Ditto.

2016-06-05  John David Anglin  <danglin@gcc.gnu.org>

        * expr.c (move_by_pieces_d::generate): Mark mode parameter with
        ATTRIBUTE_UNUSED.

2016-06-05  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (predicted_by_loop_heuristics_p): New function.
        (predict_iv_comparison): Use it.
        (predict_loops): Walk from innermost loops; do not predict edges
        leaving multiple loops multiple times; implement
        PRED_LOOP_ITERATIONS_MAX heuristics.
        * predict.def (PRED_LOOP_ITERATIONS_MAX): New predictor.

2016-06-05  Jan Hubicka  <hubicka@ucw.cz>

        * cfg.c (check_bb_profile): Do not report mismatched profiles when
        only edges out of BB are EH edges.

2016-06-04  Martin Sebor  <msebor@redhat.com>
            Marcin Baczyński  <marbacz@gmail.com>

        PR c/48116
        * doc/invoke.texi (-Wreturn-type): Mention not warning on return with
        a void expression in a void function.

2016-06-03  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): Do not check
        aux; dump reasons of decisions.
        (should_duplicate_loop_header_p): Likewise.
        (do_while_loop_p): Likewise.
        (ch_base::copy_headers): Dump asi num insns duplicated.

2016-06-04  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/71405
        * tree-ssa.c (execute_update_addresses_taken): For clobber with
        incompatible type, build a new clobber with the right type instead
        of building a VIEW_CONVERT_EXPR around it.

2016-06-04  Oleg Endo  <olegendo@gcc.gnu.org>

        PR tree-optimization/52171
        * config/sh/sh.c (sh_use_by_pieces_infrastructure_p): Use
        by_pieces_ninsns instead of move_by_pieces_ninsns.

2016-06-04  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.c (sh_print_operand_address): Don't use hardcoded 'r0'
        for reg+reg addressing mode.

2016-06-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * rs6000-c.c (c/c-tree.h): Add #include.
        (altivec_resolve_overloaded_builtin): Handle ARRAY_TYPE arguments
        in C++ when found in the base position of vec_ld or vec_st.

2016-06-03  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-niter.c (estimate_numbers_of_iterations_loop): Avoid
        use of profile unless profile status is PROFILE_READ.
        * profile.c (compute_branch_probabilities): Set profile status
        only after reporting predictor hitrates.

2016-06-03  Joseph Myers  <joseph@codesourcery.com>

        PR target/71276
        PR target/71277
        * common.opt (ffp-int-builtin-inexact): New option.
        * doc/invoke.texi (-fno-fp-int-builtin-inexact): Document.
        * doc/md.texi (floor@var{m}2, btrunc@var{m}2, round@var{m}2)
        (ceil@var{m}2): Document dependence on this option.
        * ipa-inline-transform.c (inline_call): Handle
        flag_fp_int_builtin_inexact.
        * ipa-inline.c (can_inline_edge_p): Likewise.
        * config/i386/i386.md (rintxf2): Do not test
        flag_unsafe_math_optimizations.
        (rint<mode>2_frndint): New define_insn.
        (rint<mode>2): Do not test flag_unsafe_math_optimizations for 387
        or !flag_trapping_math for SSE.  Just use gen_rint<mode>2_frndint
        for 387 instead of extending and truncating.
        (frndintxf2_<rounding>): Test flag_fp_int_builtin_inexact ||
        !flag_trapping_math instead of flag_unsafe_math_optimizations.
        Change to frndint<mode>2_<rounding>.
        (frndintxf2_<rounding>_i387): Likewise.  Change to
        frndint<mode>2_<rounding>_i387.
        (<rounding_insn>xf2): Likewise.
        (<rounding_insn><mode>2): Test flag_fp_int_builtin_inexact ||
        !flag_trapping_math instead of flag_unsafe_math_optimizations for
        x87.  Test TARGET_ROUND || !flag_trapping_math ||
        flag_fp_int_builtin_inexact instead of !flag_trapping_math for
        SSE.  Use ROUND_NO_EXC in constant operand of
        gen_sse4_1_round<mode>2.  Just use gen_frndint<mode>2_<rounding>
        for 387 instead of extending and truncating.

2016-06-03  H.J. Lu  <hongjiu.lu@intel.com>
            Julia Koval  <julia.koval@intel.com>

        PR target/66960
        PR target/67630
        PR target/67634
        PR target/67841
        PR target/68037
        PR target/68618
        PR target/68661
        PR target/69575
        PR target/69596
        PR target/69734
        * config/i386/i386-protos.h (ix86_epilogue_uses): New prototype.
        * config/i386/i386.c (ix86_conditional_register_usage): Preserve
        all registers, except for function return registers if there are
        no caller-saved registers.
        (ix86_set_func_type): New function.
        (ix86_set_current_function): Call ix86_set_func_type to set
        no_caller_saved_registers and func_type.  Call reinit_regs if
        caller-saved registers are changed.  Don't allow MPX, SSE, MMX
        nor x87 instructions in interrupt handler nor function with
        no_caller_saved_registers attribute.
        (ix86_function_ok_for_sibcall): Return false if there are no
        caller-saved registers.
        (type_natural_mode): Don't warn ABI change for MMX in interrupt
        handler.
        (ix86_function_arg_advance): Skip for callee in interrupt handler.
        (ix86_function_arg): Return special arguments in interrupt handler.
        (ix86_promote_function_mode): Promote pointer to word_mode only
        for normal functions.
        (ix86_can_use_return_insn_p): Don't use `ret' instruction in
        interrupt handler.
        (ix86_epilogue_uses): New function.
        (ix86_hard_regno_scratch_ok): Likewise.
        (ix86_save_reg): Preserve all registers in interrupt handler
        after reload.  Preserve all registers, except for function return
        registers, if there are no caller-saved registers after reload.
        (find_drap_reg): Always use callee-saved register if there are
        no caller-saved registers.
        (ix86_minimum_incoming_stack_boundary): Return MIN_STACK_BOUNDARY
        for interrupt handler.
        (ix86_expand_prologue): Don't allow DRAP in interrupt handler.
        Emit cld instruction if stringops are used in interrupt handler
        or interrupt handler isn't a leaf function.
        (ix86_expand_epilogue): Generate interrupt return for interrupt
        handler and pop the 'ERROR_CODE' off the stack before interrupt
        return in exception handler.
        (ix86_expand_call): Disallow calling interrupt handler directly.
        If there are no caller-saved registers, mark all registers that
        are clobbered by the call which returns as clobbered.
        (ix86_handle_no_caller_saved_registers_attribute): New function.
        (ix86_handle_interrupt_attribute): Likewise.
        (ix86_attribute_table): Add interrupt and no_caller_saved_registers
        attributes.
        (TARGET_HARD_REGNO_SCRATCH_OK): Likewise.
        * config/i386/i386.h (ACCUMULATE_OUTGOING_ARGS): Use argument
        accumulation in interrupt function if stack may be realigned to
        avoid DRAP.
        (EPILOGUE_USES): New.
        (function_type): New enum.
        (machine_function): Add func_type and no_caller_saved_registers.
        * config/i386/i386.md (UNSPEC_INTERRUPT_RETURN): New.
        (interrupt_return): New pattern.
        * doc/extend.texi: Document x86 interrupt and
        no_caller_saved_registers attributes.

2016-06-03  Bernd Schmidt  <bschmidt@redhat.com>

        PR tree-optimization/52171
        * builtins.c (expand_cmpstrn_or_cmpmem): Delete, moved elsewhere.
        (expand_builtin_memcmp): New arg RESULT_EQ.  All callers changed.
        Look for constant strings.  Move some code to emit_block_cmp_hints
        and use it.
        * builtins.def (BUILT_IN_MEMCMP_EQ): New.
        * defaults.h (COMPARE_MAX_PIECES): New macro.
        * expr.c (move_by_pieces_d, store_by_pieces_d): Remove old structs.
        (move_by_pieces_1, store_by_pieces_1, store_by_pieces_2): Remvoe.
        (clear_by_pieces_1): Don't declare.  Move definition before use.
        (can_do_by_pieces): New static function.
        (can_move_by_pieces): Use it.  Return bool.
        (by_pieces_ninsns): Renamed from move_by_pieces_ninsns.  New arg
        OP.  All callers changed.  Handle COMPARE_BY_PIECES.
        (class pieces_addr); New.
        (pieces_addr::pieces_addr, pieces_addr::decide_autoinc,
        pieces_addr::adjust, pieces_addr::increment_address,
        pieces_addr::maybe_predec, pieces_addr::maybe_postinc): New member
        functions for it.
        (class op_by_pieces_d): New.
        (op_by_pieces_d::op_by_pieces_d, op_by_pieces_d::run): New member
        functions for it.
        (class move_by_pieces_d, class compare_by_pieces_d,
        class store_by_pieces_d): New subclasses of op_by_pieces_d.
        (move_by_pieces_d::prepare_mode, move_by_pieces_d::generate,
        move_by_pieces_d::finish_endp, store_by_pieces_d::prepare_mode,
        store_by_pieces_d::generate, store_by_pieces_d::finish_endp,
        compare_by_pieces_d::generate, compare_by_pieces_d::prepare_mode,
        compare_by_pieces_d::finish_mode): New member functions.
        (compare_by_pieces, emit_block_cmp_via_cmpmem): New static
        functions.
        (expand_cmpstrn_or_cmpmem): Moved here from builtins.c.
        (emit_block_cmp_hints): New function.
        (move_by_pieces, store_by_pieces, clear_by_pieces): Rewrite to just
        use the newly defined classes.
        * expr.h (by_pieces_constfn): New typedef.
        (can_store_by_pieces, store_by_pieces): Use it in arg declarations.
        (emit_block_cmp_hints, expand_cmpstrn_or_cmpmem): Declare.
        (move_by_pieces_ninsns): Don't declare.
        (can_move_by_pieces): Change return value to bool.
        * target.def (TARGET_USE_BY_PIECES_INFRASTRUCTURE_P): Update docs.
        (compare_by_pieces_branch_ratio): New hook.
        * target.h (enum by_pieces_operation): Add COMPARE_BY_PIECES.
        (by_pieces_ninsns): Declare.
        * targethooks.c (default_use_by_pieces_infrastructure_p): Handle
        COMPARE_BY_PIECES.
        (default_compare_by_pieces_branch_ratio): New function.
        * targhooks.h (default_compare_by_pieces_branch_ratio): Declare.
        * doc/tm.texi.in (STORE_MAX_PIECES, COMPARE_MAX_PIECES): Document.
        * doc/tm.texi: Regenerate.
        * tree-ssa-strlen.c: Include "builtins.h".
        (handle_builtin_memcmp): New static function.
        (strlen_optimize_stmt): Call it for BUILT_IN_MEMCMP.
        * tree.c (build_common_builtin_nodes): Create __builtin_memcmp_eq.

2016-06-03  Alan Hayward  <alan.hayward@arm.com>

        * tree-vect-stmts.c (vect_stmt_relevant_p): Do not vectorize non live
        relevant stmts which are simple and invariant.
        * tree-vect-loop.c (vectorizable_live_operation): Check relevance
        instead of simple and invariant

2016-06-03  Alan Hayward  <alan.hayward@arm.com>

        * tree-vect-loop.c (vect_analyze_loop_operations): Allow live stmts.
        (vectorizable_reduction): Check for new relevant state.
        (vectorizable_live_operation): vectorize live stmts using
        BIT_FIELD_REF.  Remove special case for gimple assigns stmts.
        * tree-vect-stmts.c (is_simple_and_all_uses_invariant): New function.
        (vect_stmt_relevant_p): Check for stmts which are only used live.
        (process_use): Use of a stmt does not inherit it's live value.
        (vect_mark_stmts_to_be_vectorized): Simplify relevance inheritance.
        (vect_analyze_stmt): Check for new relevant state.
        * tree-vectorizer.h (vect_relevant): New entry for a stmt which is used
        outside the loop, but not inside it.

2016-06-03  Alan Hayward  <alan.hayward@arm.com>

        * tree-vectorizer.h (vect_get_vec_def_for_operand_1): New.
        * tree-vect-stmts.c (vect_get_vec_def_for_operand_1): New.
        (vect_get_vec_def_for_operand): Split out code.

2016-06-03  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (define_peepholes for two mfcr's): Delete.

2016-06-03  Alan Hayward  <alan.hayward@arm.com>

        * tree-vect-stmts.c (vectorizable_call) Remove GOMP_SIMD_LANE code.

2016-06-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/thumb1.md (*thumb1_mulsi3): Fix typos in comment.

2016-06-03  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/71387
        * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): If redirecting
        to noreturn e->callee->decl that has void return type and void
        arguments, adjust gimple_call_fntype and remove lhs even if it had
        previously addressable type.

2016-06-02  Jeff Law  <law@redhat.com>

        PR tree-optimization/71328
        * tree-ssa-threadupdate.c (duplicate_thread_path): Fix off-by-one
        error when checking for a jump back onto the copied path.

2016-06-02  David Malcolm  <dmalcolm@redhat.com>

        * config/microblaze/microblaze.c (get_branch_target): Add return
        NULL_RTX for the non-CALL_P case.
        (insert_wic_for_ilb_runout): Remove unused local "wic_addr1".
        (insert_wic): Remove unused local "j".

2016-06-02  Martin Liska  <mliska@suse.cz>

        * predict.def: Fix typo in PRED_FORTRAN_FAIL_IO display name.

2016-06-02  H.J. Lu  <hongjiu.lu@intel.com>
            Julia Koval  <julia.koval@intel.com>

        * function.c (assign_parm_setup_stack): Force source into a
        register if needed.
        * target.def (function_incoming_arg): Update documentation to
        allow arbitrary address computation based on hard register.
        * doc/tm.texi: Regenerated.

2016-06-02  Martin Liska  <mliska@suse.cz>

        * predict.c (combine_predictions_for_bb): Fix first match in
        cases where a first predictor contains more than one occurence
        in list of predictors.  Take the best value in such case.

2016-06-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR rtl-optimization/71295
        * rtlanal.c (subreg_get_info): If taking a subreg at the requested
        offset would go over the size of the inner mode reject it.

2016-06-02  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (*vec_concatv4si): Use v=v,v instead of
        x=x,x and v=v,m instead of x=x,m.

        * config/i386/sse.md (*vec_concatv2si_sse4_1): Add avx512dq v=Yv,rm
        alternative.  Change x=x,x alternative to v=Yv,Yv and x=rm,C
        alternative to v=rm,C.

        * config/i386/sse.md (*vec_concatv2di): Add x86_avx512dq v=Yv,rm
        alternative.  Change x=xm,C alternative to v=vm,C, x=x,x alternative
        to v=Yv,Yv and x=x,m to v=v,m.  Use maybe_evex prefix attribute
        instead of vex for the last two above mentioned alternatives.

2016-06-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/70830
        * config/arm/arm.c (arm_output_multireg_pop): Guard "pop" on update.

2016-06-02  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/dfp.md (trunctddd2): Correct the "length" attribute.

2016-06-01  David Malcolm  <dmalcolm@redhat.com>

        * config/rl78/rl78.c (rl78_expand_prologue): Convert local
        from int to unsigned.

2016-05-31  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/vsx.md (vsx_splat_<mode>, V2DI/V2DF): Simplify
        alternatives, eliminating preferred register class.  Add support
        for the MTVSRDD instruction in ISA 3.0.
        (vsx_splat_v4si_internal): Use splat_input_operand instead of
        reg_or_indexed_operand.
        (vsx_splat_v4sf_internal): Likewise.

2016-05-31  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/71186
        * config/rs6000/vsx.md (xxspltib_<mode>_nosplit): Add alternatives
        for loading up all 0's or all 1's.

2016-06-01  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * doc/sourcebuild.texi (arm_acq_rel): Document new effective target.

2016-06-01  Eduard Sanou  <dhole@openmailbox.org>

        * doc/cppenv.texi: Note that the `%s` in `date` is a non-standard
        extension.
        * gcc.c (driver_handle_option): Call set_source_date_epoch_envvar.
        * gcc.c (set_source_date_epoch_envvar): New function, sets
        the SOURCE_DATE_EPOCH environment variable to the current time.

2016-06-01  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-vect-loop.c (vect_determine_vectorization_factor): Also compute
        the factor for live Phi nodes.

2016-06-01  Jan Hubicka  <hubicka@ucw.cz>

        * loop-dolop.c (doloop_optimize): Us likely max iteration bound.
        * tree-parloops.c (parallelize_loops): likewise.
        * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop,
        tree_unswitch_outer_loop): likewise.

2016-06-01  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/71371
        * gimplify.c (gimplify_omp_for): Temporarily clear gimplify_omp_ctxp
        around creation of the temporary.

2016-06-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71366
        * tree-ssa-loop-ivcanon.c (edges_to_remove): New global.
        (unloop_loops): Move removing edges here ...
        (try_unroll_loop_completely): ... from here.
        (try_peel_loop): ... and here.
        (tree_unroll_loops_completely_1): Track parent loops via
        bitmap of header BBs.
        (tree_unroll_loops_completely): Adjust for that.

2016-06-01  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/altivec.h (vec_slv): New macro.
        (vec_srv): New macro.
        * config/rs6000/altivec.md (UNSPEC_VSLV): New value.
        (UNSPEC_VSRV): New value.
        (vslv): New insn.
        (vsrv): New insn.
        * config/rs6000/rs6000-builtin.def (vslv): New builtin definition.
        (vsrv): New builtin definition.
        * config/rs6000/rs6000-c.c (P9V_BUILTIN_VSLV): Macro expansion to
        define argument types for new builtin.
        (P9V_BUILTIN_VSRV): Macro expansion to define argument types for
        new builtin.
        * doc/extend.texi: Document the new vec_vslv and vec_srv built-in
        functions.

2016-06-01  Uros Bizjak  <ubizjak@gmail.com>
            Jocelyn Mayer  <l_indien@magic.fr>

        PR target/67310
        * config/i386/driver-i386.c (host_detect_local_cpu): Correctly
        detect processor family for signature_CENTAUR_ebx.
        <case PROCESSOR_I486>: Pass c3, winchip2 or winchip-c6 for
        signature_CENTAUR_ebx.
        <case PROCESSOR _PENTIUMPRO>: Pass c3-2 for signature_CENTAUR_ebx.
        <default>: Pass x86-64 for has_longmode.

2016-06-01  Nathan Sidwell  <nathan@acm.org>

        * config/nvptx/nvptx.c (nvptx_assemble_undefined_decl): Reject
        undefined weak.

2016-06-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71261
        * tree-vect-patterns.c (check_bool_pattern): Gather a hash-set
        of stmts successfully put in the bool pattern.  Remove
        single-use restriction.
        (adjust_bool_pattern_cast): Add cast at the use site via the
        pattern def sequence.
        (adjust_bool_pattern): Remove recursion, maintain a hash-map
        of patterned defs.  Use the pattern def seqence instead of
        multiple independent patterns.
        (sort_after_uid): New qsort compare function.
        (adjust_bool_stmts): New function to process stmts in the bool
        pattern in IL order.
        (vect_recog_bool_pattern): Adjust.
        * tree-if-conv.c (ifcvt_split_def_stmt): Remove.
        (ifcvt_walk_pattern_tree): Likewise.
        (stmt_is_root_of_bool_pattern): Likewise.
        (ifcvt_repair_bool_pattern): Likewise.
        (tree_if_conversion): Do not call ifcvt_repair_bool_pattern.

2016-06-01  Jan Hubicka  <hubicka@ucw.cz>

        * loop-unroll.c (decide_unroll_constant_iterations,
        decide_unroll_runtime_iterations, decide_unroll_stupid): Use
        likely upper bounds.
        * loop-iv.c (find_simple_exit): Dump likely upper bounds.

2016-06-01  Thomas Schwinge  <thomas@codesourcery.com>

        * tree-core.h (enum omp_clause_code): Remove
        OMP_CLAUSE_DEVICE_RESIDENT.  Adjust all users.

2016-06-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/sync.md (arm_store_exclusive<mode>):
        Use 'H' output modifier on operands[2] rather than creating a new
        entry in out-of-bounds memory of the operands array.
        (arm_store_release_exclusivedi): Likewise.

2016-06-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.c (arm_fusion_enabled_p): New function.
        * config/arm/arm-protos.h (arm_fusion_enabled_p): Declare prototype.
        * config/arm/crypto.md (crypto_<crypto_pattern>, CRYPTO_UNARY):
        Add "=w,0" alternative.  Enable it when AES/AESMC fusion is enabled.

2016-06-01  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-vect-loop.c (vect_determine_vectorization_factor): Also take
        into account live statements for mask producers.

2016-06-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71311
        * match.pd (@0 < @1 && @0 < @2 -> @0 < min(@1,@2)): Add :c and
        restrict to non-INTEGER_CST @0.

2016-06-01  Richard Biener  <rguenther@suse.de>

        * match.pd ((A & B) - (A & ~B) -> B - (A ^ B)): Add missing :c.
        (relational patterns): Use :c to avoid pattern duplications.

2016-06-01  Richard Biener  <rguenther@suse.de>

        * genmatch.c (comparison_code_p): New predicate.
        (swap_tree_comparison): New function.
        (commutate): Add for_vec parameter to append new for entries.
        Support commutating relational operators by swapping it alongside
        operands.
        (lower_commutative): Adjust.
        (dt_simplify::gen): Do not pass artificial operators to gen
        functions.
        (decision_tree::gen): Do not add artificial operators as parameters.
        (parser::parse_expr): Verify operator commutativity when :c is
        applied.  Allow :C to override this.
        * match.pd: Adjust patterns to use :C instead of :c where required.

2016-06-01  Patrick Palka  <ppalka@gcc.gnu.org>

        PR tree-optimization/71077
        * tree-ssa-threadedge.c (simplify_control_stmt_condition_1): In
        the combining step, use boolean_false_node and boolean_true_node
        as the designated false/true return values.

2016-05-31  Jan Hubicka  <hubicka@ucw.cz>

        * predict.def (PRED_LOOP_EXTRA_EXIT): Define.
        * predict.c (predict_iv_comparison): Also check PRED_LOOP_EXTRA_EXIT.
        (predict_extra_loop_exits): Use PRED_LOOP_EXTRA_EXIT instead of
        PRED_LOOP_EXIT.

2016-05-31  Jan Hubicka  <hubicka@ucw.cz>

        * doc/invoke.texi (-frename-registers): Drop -fpeel-loops from list
        of flags impliying the register renaming.
        * toplev.c (process_options): Do not imply flag_rename_registers with
        loop peeling.

2016-05-31  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.h (ASM_OUTPUT_SYMBOL_REF): Remove macro and use the
        default implementation.

2016-05-31  Nathan Sidwell  <nathan@acm.org>

        * dwarf2out.c (cur_line_info_table): Add GTY marker.

2016-05-31  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/constraints.md (b): Remove constraint.
        * config/sh/predicates.md (arith_reg_operand): Remove
        TARGET_REGISTER_P.
        * config/sh/sh-modes.def (PDI): Remove.
        * config/sh/sh.c (sh_target_reg_class,
        sh_optimize_target_register_callee_saved): Remove functions.
        (sh_option_override): Don't set MASK_SAVE_ALL_TARGET_REGS.
        (sh_expand_epilogue): Update comment.
        (sh_hard_regno_mode_ok, sh_register_move_cost, calc_live_regs,
        sh_secondary_reload): Remove TARGET_REGS related code.
        * config/sh/sh.h (FIRST_TARGET_REG, LAST_TARGET_REG,
        TARGET_REGISTER_P): Remove macros.
        (SH_DBX_REGISTER_NUMBER, REG_ALLOC_ORDER): Remove target regs.
        * config/sh/sh.md (PR_MEDIA_REG, T_MEDIA_REG, FR23_REG, TR0_REG,
        TR1_REG, TR2_REG): Remove constants.
        * config/sh/sh.opt (SAVE_ALL_TARGET_REGS): Remove.

2016-05-31  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.md (adddi3, subdi3, negdi2, abs<mode>2): Remove
        define_expand patterns.
        (adddi3_compact): Rename to adddi3.
        (subdi3_compact): Rename to subdi3.
        (*negdi2): Rename to negdi2.
        (*abs<mode>2): Rename to abs<mode>2.

2016-05-31  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/rx/rx.md (FETCHOP_NO_MINUS): New code iterator.
        (atomic_<fetchop_name>_fetchsi): Extract minus operator into ...
        (atomic_sub_fetchsi): ... this new pattern.
        (mvtc): Add CC_REG clobber.

2016-05-31  Marek Polacek  <polacek@redhat.com>

        * gimplify.c (gimplify_switch_expr): Also handle GIMPLE_TRY.

2016-05-31  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (aarch_macro_fusion_pair_p): Use
        aarch64_fusion_enabled_p to check for fusion capabilities.

2016-05-31  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71352
        * tree-ssa-reassoc.c (zero_one_operation): Handle op equal to
        minus one and a negate.

2016-05-31  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (aarch64_simd_attr_length_move): Delete.
        * config/aarch64/aarch64-protos.h (aarch64_simd_attr_length_move):
        Delete prototype.
        * config/aarch64/iterators.md (insn_count): Add descriptive comment.
        * config/aarch64/aarch64-simd.md (*aarch64_mov<mode>, VSTRUCT modes):
        Remove use of aarch64_simd_attr_length_move, set length attribute
        directly.
        (*aarch64_be_movoi): Likewise.
        (*aarch64_be_movci): Likewise.
        (*aarch64_be_movxi): Likewise.

2016-05-31  Jan Hubicka  <hubicka@ucw.cz>

        * loop-init.c (gate): Do not enale RTL loop unroller with -fpeel-loops.
        It no longer does that.
        * toplev.c (process_options): Do not enable flag_web with -fpeel-loops.

2016-05-31  Wladimir J. van der Laan  <laanwj@gmail.com>

        * config/aarch64/arm_neon.h (vdupb_laneq_s8): Remove spurious
        attribute __unused__.

2016-05-31  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-protos.h (arm_arch_thumb1): Declare.
        * config/arm/arm.c (arm_arch_thumb1): Define.
        (arm_option_override): Initialize arm_arch_thumb1.
        * config/arm/arm.h (arm_arch_thumb1): Declare.
        (TARGET_ARM_ARCH_ISA_THUMB): Use arm_arch_thumb to determine if target
        support Thumb-1 ISA.

2016-05-31  Kirill Yukhin  <kirill.yukhin@intel.com>

        PR target/71346
        * config/i386/sse.md (define_insn_and_split "*vec_extractv4sf_0"): Use
        `Yv' for scalar operand.

2016-05-31  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/69068
        * graphite-isl-ast-to-gimple.c (copy_bb_and_scalar_dependences): Handle
        phis with more than two args.

2016-05-30  Andreas Tobler  <andreast@gcc.gnu.org>

        * config.gcc: Move hard float support for arm*hf*-*-freebsd* into
        armv6*-*-freebsd* for FreeBSD 11. Eliminate the arm*hf*-*-freebsd*
        target.

2016-05-30  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * config.gcc (sparc*-*-*): Support cpu_32, cpu_64, tune_32 and
        tune_64.
        * doc/install.texi (--with-cpu-32, --with-cpu-64): Document
        support on SPARC.
        * config/sparc/linux64.h (OPTION_DEFAULT_SPECS): Add entries for
        cpu_32, cpu_64, tune_32 and tune_64.
        * config/sparc/sol2.h (OPTION_DEFAULT_SPECS): Likewise.

2016-05-30  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sync.md (mfence_nosse): Use "lock orl $0, -4(%esp)".

2016-05-30  Andi Kleen  <ak@linux.intel.com>

        * auto-profile.c (read_profile): Replace asserts with errors
        when file does not exist.
        * gcov-io.c (gcov_read_words): Dito.

2016-05-30  Jan Hubicka  <hubicka@ucw.cz>

        * tree-cfg.c (print_loop): Print likely upper bounds.

2016-05-30  Jan Hubicka  <hubicka@ucw.cz>

        * doc/invoke.texi (-fpeel-loops,-O3): Update documentation.
        * opts.c (default_options): Enable peel loops at -O3.
        * tree-ssa-loop-ivcanon.c (peeled_loops): New static var.
        (try_peel_loop): Do not re-peel already peeled loops;
        use likely upper bounds; fix profile updating.
        (pass_complete_unroll::execute): Initialize peeled_loops.

2016-05-30  Martin Liska  <mliska@suse.cz>

        * tree-ssa-loop-ivopts.c (get_computation_cost_at): Scale
        computed costs by frequency of BB they belong to.
        (get_scaled_computation_cost_at): New function.

2016-05-30  Alexander Monakov  <amonakov@ispras.ru>
            Marc Glisse  <marc.glisse@inria.fr>

        PR tree-optimization/71289
        * match.pd (-1 / B < A, A > -1 / B): New transformations.

2016-05-30  Jan Hubicka  <hubicka@ucw.cz>

        * tree-vect-loop.c (vect_transform_loop): Update likely bounds.

2016-05-30  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-ivcanon.c (try_peel_loop): Correctly set wont_exit
        for peeled copies; avoid underflow when updating estimates; correctly
        scale loop profile.

2016-05-30  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * tree-ssa-reassoc.ci (swap_ops_for_binary_stmt): Fix typo from commit
        r236875. Corrected oe3 to oe2 as obvious.

2016-05-30  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/71269
        PR middle-end/71252
        * tree-ssa-reassoc.c (insert_stmt_before_use): Use find_insert_point so
        that inserted stmt will not dominate stmts that defines its operand.
        (rewrite_expr_tree): Add stmt_to_insert before adding the use stmt.
        (rewrite_expr_tree_parallel): Likewise.

2016-05-30  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/71252
        * tree-ssa-reassoc.c (swap_ops_for_binary_stmt): Fix swap such that
        all fields including stmt_to_insert are swapped.

2016-05-30  Jan Hubicka  <hubicka@ucw.cz>

        * predict.h (force_edge_cold): Declare.
        * predict.c (force_edge_cold): New function.
        * tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Fix profile
        updating.
        (canonicalize_loop_induction_variables): Fix formating.

2016-05-30  Eric Botcazou  <ebotcazou@adacore.com>

        * config/visium/visium.c (visium_split_double_add): Minor tweaks.
        (visium_expand_copysign): Use gen_int_mode directly.
        (visium_compute_frame_size): Minor tweaks.

2016-05-30  Jan Hubicka  <hubicka@ucw.cz>

        * tree-vect-loop.c (vect_analyze_loop_2): Use
        likely_max_stmt_executions_int.

2016-05-30  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/69067
        * graphite-isl-ast-to-gimple.c (get_def_bb_for_const): Remove assert.

2016-05-29  Uros Bizjak  <ubizjak@gmail.com>

        PR target/71245
        * config/i386/sync.md (define_peephole2 atomic_storedi_fpu):
        New peepholes to remove unneeded fild/fistp pairs.
        (define_peephole2 atomic_loaddi_fpu): Ditto.

2016-05-27  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (maybe_hot_frequency_p): Avoid division.

2016-05-28  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi: Use https for shop.fsf.org.

2016-05-27  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-ivopts.c (estimated_stmt_executions_int): Use
        likely_max_stmt_executions_int.

2016-05-27  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-prefetch.c (loop_prefetch_arrays): Use
        likely_max_stmt_executions_int.

2016-05-27  Jan Hubicka  <hubicka@ucw.cz>

        * profile.c (compute_branch_probabilities): Do not report hitrates
        here.
        (branch_prob): Report hitrates here.
        * predict.c (gimple_predict_edge): Do not assert profile status;
        fix formatting issues.

2016-05-27  Jan Hubicka  <hubicka@ucw.cz>

        * predict.c (edge_predicted_by_p): New function.
        (predict_paths_for_bb): Do not put multiple predictions of the same type
        on one edge.

2016-05-27  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-niter.c (number_of_iterations_exit): Revert accidental
        commit.

2016-05-28  Alan Modra  <amodra@gmail.com>

        * dominance.c (verify_dominators): Don't segfault on NULL imm_bb.

2016-05-28  Alan Modra  <amodra@gmail.com>

        PR rtl-optimization/71275
        * ira.c (ira): Free dominance info.

2016-05-27  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/sourcebuild.texi: New address for upstream Go repository.

2016-05-27  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.h (TARGET_ARM_V6M): Remove.
        (TARGET_ARM_V7M): Likewise.

2016-05-26  Jeff Law  <law@redhat.com>

        * tree-ssa-threadedge.c: Remove include of tree-ssa-threadbackward.h.
        (thread_across_edge): Remove calls to find_jump_threads_backwards.
        * passes.def: Add jump threading passes before DOM/VRP.
        * tree-ssa-threadbackward.c (find_jump_threads_backwards): Change
        argument to a basic block from an edge.  Remove tests which are
        handled elsewhere.
        (pass_data_thread_jumps, class pass_thread_jumps): New.
        (pass_thread_jumps::gate, pass_thread_jumps::execute): New.
        (make_pass_thread_jumps): Likewise.
        * tree-pass.h (make_pass_thread_jumps): Declare.

2016-05-27  Eric Botcazou  <ebotcazou@adacore.com>

        * config/visium/visium-protos.h (split_double_move): Rename into...
        (visium_split_double_move): ...this.
        (visium_split_double_add): Declare.
        * config/visium/visium.c (split_double_move): Rename into...
        (visium_split_double_move): ...this.
        (visium_split_double_add): New function.
        (visium_expand_copysign): Renumber operands for consistency.
        * config/visium/visium.md (DImode move splitter): Adjust to renaming.
        (DFmode move splitter): Likewise.
        (*addi3_insn): Split by means of visium_split_double_add.
        (*adddi3_insn_flags): Delete.
        (*plus_plus_sltu<subst_arith>): New insn.
        (*subdi3_insn): Split by means of visium_split_double_add.
        (subdi3_insn_flags): Delete.
        (*minus_minus_sltu<subst_arith>): New insn.
        (*negdi2_insn): Split by means of visium_split_double_add.
        (*negdi2_insn_flags): Delete.

2016-05-27  Ulrich Weigand  <uweigand@de.ibm.com>

        * configure.ac: Treat a --with-headers option without argument
        the same as the default (i.e. consult sys-include directory).
        * configure: Regenerate.

2016-05-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (aarch64_fusion_enabled_p): New function.
        * config/aarch64/aarch64-protos.h (aarch64_fusion_enabled_p): Declare
        prototype.
        * config/aarch64/aarch64-simd.md (aarch64_crypto_aes<aesmc_op>v16qi):
        Add "=w,0" alternative.  Enable it when AES/AESMC fusion is enabled.

2016-05-27  Jiong Wang  <jiong.wang@arm.com>

        PR target/63596
        * config/aarch64/aarch64.c (aarch64_expand_builtin_va_start): Honor
        tree-stdarg analysis results.
        (aarch64_setup_incoming_varargs): Likewise.

2016-05-27  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64.c (aarch64_build_builtin_va_list): Initialize
        va_list_gpr_counter_field and va_list_fpr_counter_field.

2016-05-27  Wilco Dijkstra  <wdijkstr@arm.com>

        PR67609
        * config/aarch64/aarch64.h (CANNOT_CHANGE_MODE_CLASS): Remove.
        * config/aarch64/aarch64.c
        (aarch64_cannot_change_mode_class): Remove function.
        * config/aarch64/aarch64-protos.h
        (aarch64_cannot_change_mode_class): Remove.

2016-05-27  Jan Hubicka  <hubicka@ucw.cz>

        * cfgloop.c (record_niter_bound): Record likely upper bounds.
        (likely_max_stmt_executions_int, get_likely_max_loop_iterations,
        get_likely_max_loop_iterations_int): New.
        * cfgloop.h (struct loop): Add nb_iterations_likely_upper_bound,
        any_likely_upper_bound.
        (get_likely_max_loop_iterations_int, get_likely_max_loop_iterations):
        Declare.
        * cfgloopmanip.c (copy_loop_info): Copy likely upper bounds.
        * loop-unroll.c (unroll_loop_constant_iterations): Update likely
        upper bound.
        (unroll_loop_constant_iterations): Likewise.
        (unroll_loop_runtime_iterations): Likewise.
        * lto-streamer-in.c (input_cfg): Stream likely upper bounds.
        * lto-streamer-out.c (output_cfg): Likewise.
        * tree-ssa-loop-ivcanon.c (try_peel_loop): Update likely upper
        bounds.
        (canonicalize_loop_induction_variables): Dump likely upper bounds.
        * tree-ssa-loop-niter.c (record_estimate): Record likely upper bounds.
        (likely_max_loop_iterations): New.
        (likely_max_loop_iterations_int): New.
        (likely_max_stmt_executions): New.
        * tree-ssa-loop-niter.h (likely_max_loop_iterations,
        likely_max_loop_iterations_int, likely_max_stmt_executions_int,
        likely_max_stmt_executions): Declare.

2016-05-27  Marek Polacek  <polacek@redhat.com>

        PR middle-end/71308
        * gimple-fold.c (gimple_fold_call): Check that LHS is not null.

2016-05-27  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md (2x risbg splitters): Use
        reg_overlap_mentioned_p instead of rtx_equal_p.

2016-05-27  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * combine.c (make_compound_operation): Take known zero bits into
        account when checking for possible zero_extend.

2016-05-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.md (ashl<mode>3, SHORT modes):
        Use const_int_operand for operand 2 predicate.  Simplify expand code
        as a result.

2016-05-27  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR middle-end/71279
        * fold-const.c (fold_ternary_loc): Don't fold VEC_COND_EXPR
        into comparison.

2016-05-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-modes.def (CC_ZESWP, CC_SESWP): Delete.
        * config/aarch64/aarch64.c (aarch64_select_cc_mode): Remove condition
        that returns CC_SESWPmode and CC_ZESWPmode.
        (aarch64_get_condition_code_1): Remove handling of CC_SESWPmode
        and CC_SESWPmode.
        (aarch64_rtx_costs): Likewise.

2016-05-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_emit_p9_fp_minmax): New function
        for ISA 3.0 min/max support.
        (rs6000_emit_p9_fp_cmove): New function for ISA 3.0 floating point
        conditional move support.
        (rs6000_emit_cmove): Call rs6000_emit_p9_fp_minmax and
        rs6000_emit_p9_fp_cmove if the ISA 3.0 instructions are
        available.
        * config/rs6000/rs6000.md (SFDF2): New iterator to allow doing
        conditional moves where the comparison type is different from move
        type.
        (fp_minmax): New code iterator for smin/smax.
        (minmax): New code attributes for min/max.
        (SMINMAX): Likewise.
        (smax<mode>3): Combine min, max insns into one insn using the
        fp_minmax code iterator.  Add support for ISA 3.0 min/max
        instructions that don't need -ffast-math.
        (s<minmax><mode>3): Likewise.
        (smax<mode>3_vsx): Likewise.
        (smin<mode>3): Likewise.
        (s<minmax><mode>3_vsx): Likewise.
        (smin<mode>3_vsx): Likewise.
        (pre-VSX min/max splitters): Likewise.
        (s<minmax><mode>3_fpr): Likewise.
        (movsfcc): Rewrite floating point conditional moves to combine
        SFmode/DFmode into a single insn.
        (mov<mode>cc): Likewise.
        (movdfcc): Likewise.
        (fselsfsf4): Combine FSEL cases into a single insn, using SFDF and
        SFDF2 iterators to handle all combinations.
        (fseldfsf4): Likewise.
        (fsel<SFDF:mode><SFDF2:mode>4): Likewise.
        (fseldfdf4): Likewise.
        (fselsfdf4): Likewise.
        (mov<SFDF:mode><SFDF2:mode>cc_p9): Add support for the ISA 3.0
        comparison instructions that set a 0/-1 mask, and use it for
        floating point conditional move via XXSEL.
        (fpmask<mode>): Likewise.
        (xxsel<mode>): Likewise.
        * config/rs6000/predicates.md (min_max_operator): Delete, no
        longer used.
        (fpmask_comparison_operaton): New insn for ISA 3.0 comparison
        instructions that generate a 0/-1 mask for use with XXSEL.
        * config/rs6000/rs6000.h (TARGET_MINMAX_SF): New helper macros to
        say whether floating point min/max is available, either through
        FSEL, ISA 2.06 min/max, and ISA 3.0 min/max instrucitons.
        (TARGET_MINMAX_DF): Likewise.

2016-05-27  Alan Modra  <amodra@gmail.com>

        PR rtl-optimization/71275
        * ira.c (ira): Call loop_optimizer_init to set up bb_loop_depth
        for update_equiv_regs and combine_and_move_insns.

2016-05-26  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*movqi_internal) <attr "isa">: Use
        if_then_else or cond RTXes to calculate attribute value.
        * config/i386/mmx.md (*vec_extractv2sf_1) <attr "prefix_rep">: Ditto.
        <attr "length_immediate>: Ditto.
        (*vec_extractv2sf_1) <attr "length_immediate">: Ditto.
        * config/i386/sse.md (sse_loadlps) <attr "length_immediate">: Ditto.
        (*vec_concatv2sf_sse4_1) <attr "isa">: Ditto.
        <attr "type">: Ditto.
        <attr "prefix_data16">: Ditto.
        <attr "prefix_extra">: Ditto.
        <attr "length_immediate">: Ditto.
        <attr "prefix">: Ditto.
        (vec_set<mode>_0) <attr "isa">: Ditto.
        <attr "prefix_extra">: Ditto.
        <attr "length_immediate">: Ditto.
        <attr "prefix">: Ditto.
        (*vec_interleave_highv2df) <attr "prefix_data16">: Ditto.
        (*vec_interleave_lowv2df) <attr "prefix_data16">: Ditto.
        (sse2_storelpd) <attr "prefix_data16">: Ditto.
        (sse2_loadhpd) <attr "prefix_data16">: Ditto.
        (sse2_loadlpd) <attr "prefix_data16">: Ditto.
        <attr "length_immediate">: Ditto.
        <attr "prefix">: Ditto.
        (sse2_movsd) <attr "length_immediate">: Ditto.
        <attr "prefix">: Ditto.
        (vec_concatv2df)  <attr "isa">: Ditto.
        <attr "prefix">: Ditto.
        (*vec_extractv4si) <attr "prefix_extra">: Ditto.
        (*vec_extractv2di_1) <attr "isa">: Ditto.
        <attr "type">: Ditto.
        <attr "length_immediate">: Ditto.
        <attr "prefix_rex">: Ditto.
        <attr "prefix_extra">: Ditto.
        (*vec_concatv2si_sse4_1) <attr "type">: Ditto.
        <attr "prefix_extra">: Ditto.
        <attr "length_immediate">: Ditto.
        (vec_concatv2di) <attr "isa">: Ditto.
        <attr "prefix_extra">: Ditto.
        <attr "length_immediate">: Ditto.
        <attr "prefix">: Ditto.

2016-05-26  Martin Liska  <mliska@suse.cz>

        * tree-ssa-loop-ivopts.c (comp_cost::infinite_cost_p): New
        function.
        (operator+): Likewise.
        (operator-): Likewise.
        (comp_cost::operator+=): Likewise.
        (comp_cost::operator-=): Likewise.
        (comp_cost::operator/=): Likewise.
        (comp_cost::operator*=): Likewise.
        (operator<): Likewise.
        (operator==): Likewise.
        (operator<=): Likewise.
        (new_cost): Remove.
        (infinite_cost_p): Likewise.
        (add_costs): Likewise.
        (sub_costs): Likewise.
        (compare_costs): Likewise.
        (set_group_iv_cost): Use the newly introduced functions.
        (get_address_cost): Likewise.
        (get_shiftadd_cost): Likewise.
        (force_expr_to_var_cost): Likewise.
        (split_address_cost): Likewise.
        (ptr_difference_cost): Likewise.
        (difference_cost): Likewise.
        (get_computation_cost_at): Likewise.
        (determine_group_iv_cost_generic): Likewise.
        (determine_group_iv_cost_address): Likewise.
        (determine_group_iv_cost_cond): Likewise.
        (autoinc_possible_for_pair): Likewise.
        (determine_group_iv_costs): Likewise.
        (cheaper_cost_pair): Likewise.
        (iv_ca_recount_cost): Likewise.
        (iv_ca_set_no_cp): Likewise.
        (iv_ca_set_cp): Likewise.
        (iv_ca_cost): Likewise.
        (iv_ca_new): Likewise.
        (iv_ca_dump): Likewise.
        (iv_ca_narrow): Likewise.
        (iv_ca_prune): Likewise.
        (iv_ca_replace): Likewise.
        (try_add_cand_for): Likewise.
        (try_improve_iv_set): Likewise.
        (find_optimal_iv_set): Likewise.

2016-05-26  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-ssa-loop-ivopts.c (loop_body_includes_call): Don't assume
        that internal functions will clobber all caller-saved registers.

2016-05-26  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_case_values_threshold):
        Return a better case_values_threshold when optimizing.

2016-05-26  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64-simd.md (aarch64_combinez):
        Add ? to integer variant.
        (aarch64_combinez_be): Likewise.

2016-05-26  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (*vcvtps2ph_store<mask_name>): Use v constraint
        instead of x constraint.
        (vcvtps2ph256<mask_name>): Likewise.

        * config/i386/sse.md (*ssse3_palignr<mode>_perm): Add avx512bw
        alternative.  Formatting fix.

        * config/i386/sse.md
        (<mask_codefor>avx512vl_shuf_<shuffletype>32x4_1<mask_name>): Rename
        to ...
        (avx512vl_shuf_<shuffletype>32x4_1<mask_name>): ... this.
        (*avx_vperm_broadcast_v4sf): Use v constraint instead of x.  Use
        maybe_evex prefix instead of vex.
        (*avx_vperm_broadcast_<mode>): Use v constraint instead of x.  Handle
        EXT_REX_SSE_REG_P (op0) case in the splitter.

2016-05-25  Jeff Law  <law@redhat.com>

        PR tree-optimization/71272
        * tree-ssa-threadbackward.c (convert_and_register_jump_thread_path):
        Update comments.  Add test for empty path.

2016-05-25  Bill Seurer  <seurer@linux.vnet.ibm.com>

        * config/rs6000/altivec.h (vec_cmpne): Add #define for vec_cmpne.
        * config/rs6000/rs6000-builtin.def (vec_cmpne): Add vec_cmpne as a
        special case builtin.
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Add
        code for ALTIVEC_BUILTIN_VEC_CMPNE.
        * config/rs6000/rs6000.c (altivec_init_builtins): Add definition
        for __builtin_vec_cmpne.

2016-05-25  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-phiopt.c (factor_out_conditional_conversion): Remove
        redundant test and bail out if the type of the new operand is not
        a GIMPLE register type after stripping a VIEW_CONVERT_EXPR.

2016-05-25  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.opt (ix86_target_flags_explicit): Remove.
        (x_ix86_target_flags_explicit): Remove.
        * config/i386/i386.c (ix86_function_specific_save): Do not copy
        x_ix86_target_flags_explicit.
        (ix86_function_specific_restore): Ditto.

2016-05-25  Uros Bizjak  <ubizjak@gmail.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        PR target/70738
        * common/config/i386/i386-common.c
        (OPTION_MASK_ISA_GENERAL_REGS_ONLY_UNSET): New.
        (ix86_handle_option) <case OPT_mgeneral_regs_only>: Disable
        MPX, MMX, SSE and x87 instructions for -mgeneral-regs-only.
        * config/i386/i386.opt (ix86_target_flags): Add new Variable.
        (-mgeneral-regs-only): Add new option.
        * config/i386/i386.c (ix86_option_override_internal): Don't enable
        x87 instructions if only general registers are allowed.
        (ix86_target_string): Add ix86_flags argument. Handle additional
        flags options through ix86_flags argument.  Update all callers.
        * doc/invoke.texi (x86 Options): Document -mgeneral-regs-only.

2016-05-25  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR rtl-optimization/66940
        * ifcvt.c (noce_get_alt_condition): Check that incrementing or
        decrementing desired_val will not overflow before performing these
        operations.

2016-05-25  Ilya Verbin  <ilya.verbin@intel.com>

        * config/i386/i386-builtin-types.def: Add V16SI_FTYPE_V16SF,
        V8DF_FTYPE_V8DF_ROUND, V16SF_FTYPE_V16SF_ROUND, V16SI_FTYPE_V16SF_ROUND.
        * config/i386/i386.c (enum ix86_builtins): Add
        IX86_BUILTIN_CVTPS2DQ512_MASK, IX86_BUILTIN_FLOORPS512,
        IX86_BUILTIN_FLOORPD512, IX86_BUILTIN_CEILPS512, IX86_BUILTIN_CEILPD512,
        IX86_BUILTIN_TRUNCPS512, IX86_BUILTIN_TRUNCPD512,
        IX86_BUILTIN_CVTPS2DQ512, IX86_BUILTIN_VEC_PACK_SFIX512,
        IX86_BUILTIN_FLOORPS_SFIX512, IX86_BUILTIN_CEILPS_SFIX512,
        IX86_BUILTIN_ROUNDPS_AZ_SFIX512.
        (builtin_description bdesc_args): Add __builtin_ia32_floorps512,
        __builtin_ia32_ceilps512, __builtin_ia32_truncps512,
        __builtin_ia32_floorpd512, __builtin_ia32_ceilpd512,
        __builtin_ia32_truncpd512, __builtin_ia32_cvtps2dq512,
        __builtin_ia32_vec_pack_sfix512, __builtin_ia32_roundps_az_sfix512,
        __builtin_ia32_floorps_sfix512, __builtin_ia32_ceilps_sfix512.
        Change IX86_BUILTIN_CVTPS2DQ512 to IX86_BUILTIN_CVTPS2DQ512_MASK for
        __builtin_ia32_cvtps2dq512_mask.
        (ix86_expand_args_builtin): Handle V8DF_FTYPE_V8DF_ROUND,
        V16SF_FTYPE_V16SF_ROUND, V16SI_FTYPE_V16SF_ROUND, V16SI_FTYPE_V16SF.
        (ix86_builtin_vectorized_function): Handle builtins mentioned above.
        * config/i386/sse.md
        (<mask_codefor>avx512f_fix_notruncv16sfv16si<mask_name><round_name>):
        Rename to ...
        (avx512f_fix_notruncv16sfv16si<mask_name><round_name>): ... this.
        (<mask_codefor>avx512f_cvtpd2dq512<mask_name><round_name>): Rename
        to ...
        (avx512f_cvtpd2dq512<mask_name><round_name>): ... this.
        (avx512f_vec_pack_sfix_v8df): New define_expand.
        (avx512f_roundpd512): Rename to ...
        (avx512f_round<castmode>512): ... this.  Change iterator.
        (avx512f_roundps512_sfix): New define_expand.
        (round<mode>2_sfix): Change iterator.

2016-05-25  Nick Clifton  <nickc@redhat.com>

        * config/msp430/msp430.c (msp430_attr): Produce an error if a
        static interrupt handler is detected.
        * config/msp430/msp430.h (LIB_SPEC): Do not use msp430.ld as the
        default linker script.
        * config/msp430/msp430.md (movpsihi2_lo): New pattern for loading
        the low part of a symbolic pointer.

2016-05-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71261
        * tree-if-conv.c (ifcvt_split_def_stmt): Walk uses on the
        interesting stmt instead of immediate uses when looking
        for the use operand to replace.

2016-05-25  Martin Liska  <mliska@suse.cz>

        * ipa-inline.c (edge_badness): Use 'w/' instead of 'w'.

2016-05-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71264
        * tree-vect-stmts.c (vect_init_vector): Properly deal with
        vector type val.

2016-05-25  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/71239
        * tree.c (array_at_struct_end_p): Do not call operand_equal_p
        if DECL_SIZE is NULL.

2016-05-25  Richard Biener  <rguenther@suse.de>

        * timevar.def (TV_TREE_LOOP_IFCVT): Add.
        * tree-if-conv.c (pass_data_if_conversion): Use it.

2016-05-25  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * cgraph.c (cgraph_node::get_availability): Fix typo in comment.
        * symtab.c (symtab_node::binds_to_current_def_p): Likewise.
        * varpool.c (varpool_node::get_availability): Likewise.

2016-05-24  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/altivec.md (VNEG iterator): New iterator for
        VNEGW/VNEGD instructions.
        (p9_neg<mode>2): New insns for ISA 3.0 VNEGW/VNEGD.
        (neg<mode>2): Add expander for V2DImode added in ISA 2.07, and
        support for ISA 3.0 VNEGW/VNEGD instructions.

2016-05-24  Cesar Philippidis  <cesar@codesourcery.com>

        * gimplify.c (omp_notice_variable): Use zero-length arrays for data
        pointers inside OACC_DATA regions.
        (gimplify_scan_omp_clauses): Prune firstprivate clause associated
        with OACC_DATA, OACC_ENTER_DATA and OACC_EXIT data regions.
        (gimplify_adjust_omp_clauses): Fix typo in comment.

2016-05-24  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/altivec.md (VParity): New mode iterator for vector
        parity built-in functions.
        (p9v_ctz<mode>2): Add support for ISA 3.0 vector count trailing
        zeros.
        (p9v_parity<mode>2): Likewise.
        * config/rs6000/vector.md (VEC_IP): New mode iterator for vector
        parity.
        (ctz<mode>2): ISA 3.0 expander for vector count trailing zeros.
        (parity<mode>2): ISA 3.0 expander for vector parity.
        * config/rs6000/rs6000-builtin.def (BU_P9_MISC_1): New macros for
        power9 built-ins.
        (BU_P9_64BIT_MISC_0): Likewise.
        (BU_P9_MISC_0): Likewise.
        (BU_P9V_AV_1): Likewise.
        (BU_P9V_AV_2): Likewise.
        (BU_P9V_AV_3): Likewise.
        (BU_P9V_AV_P): Likewise.
        (BU_P9V_VSX_1): Likewise.
        (BU_P9V_OVERLOAD_1): Likewise.
        (BU_P9V_OVERLOAD_2): Likewise.
        (BU_P9V_OVERLOAD_3): Likewise.
        (VCTZB): Add vector count trailing zeros support.
        (VCTZH): Likewise.
        (VCTZW): Likewise.
        (VCTZD): Likewise.
        (VPRTYBD): Add vector parity support.
        (VPRTYBQ): Likewise.
        (VPRTYBW): Likewise.
        (VCTZ): Add overloaded vector count trailing zeros support.
        (VPRTYB): Add overloaded vector parity support.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        overloaded vector count trailing zeros and parity instructions.
        * config/rs6000/rs6000.md (wd mode attribute): Add V1TI and TI for
        vector parity support.
        * config/rs6000/altivec.h (vec_vctz): Add ISA 3.0 vector count
        trailing zeros support.
        (vec_cntlz): Likewise.
        (vec_vctzb): Likewise.
        (vec_vctzd): Likewise.
        (vec_vctzh): Likewise.
        (vec_vctzw): Likewise.
        (vec_vprtyb): Add ISA 3.0 vector parity support.
        (vec_vprtybd): Likewise.
        (vec_vprtybw): Likewise.
        (vec_vprtybq): Likewise.
        * doc/extend.texi (PowerPC AltiVec Built-in Functions): Document
        the ISA 3.0 vector count trailing zeros and vector parity built-in
        functions.

2016-05-24  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * tree-ssa-reassoc.c (sort_by_operand_rank): Skip checking gimple_bb
        when there is stmt_to_insert.

2016-05-24  Martin Sebor  <msebor@redhat.com>

        PR c++/71147
        * tree.h (complete_or_array_type_p): New inline function.

2016-05-24  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.h (TARGET_AVOID_4BYTE_PREFIXES): Define.
        * config/i386/constraints.md (Yr): Test TARGET_AVOID_4BYTE_PREFIXES
        rather than X86_TUNE_AVOID_4BYTE_PREFIXES.

        * config/i386/sse.md (<sse4_1>_round<ssemodesuffix><avxsizesuffix>):
        Limit 1st alternative to noavx isa, split 2nd alternative into one
        noavx and one avx alternative, use *x and Bm in the former and
        x and m in the latter.

        * config/i386/sse.md (vec_set<mode>_0): Use sse4_noavx isa instead
        of sse4 for the first alternative, drop %v from the template
        and d operand modifier.  Split second alternative into one sse4_noavx
        and one avx alternative, use *x instead of *v in the former and v
        instead of *v in the latter.
        (*sse4_1_extractps): Use noavx isa instead of * for the first
        alternative, drop %v from the template.  Split second alternative into
        one noavx and one avx alternative, use *x instead of *v in the
        former and v instead of *v in the latter.
        (<vi8_sse4_1_avx2_avx512>_movntdqa): Guard the first 2 alternatives
        with noavx and the last one with avx.
        (sse4_1_phminposuw): Guard first alternative with noavx isa,
        split the second one into one noavx and one avx alternative,
        use *x and Bm in the former and x and m in the latter one.
        (<sse4_1>_ptest<mode>): Use noavx instead of * for the first two
        alternatives.

        * config/i386/sse.md (sse4_1_<code>v8qiv8hi2<mask_name>): Limit
        first two alternatives to noavx, use *x instead of *v in the second
        one, add avx alternative without *.
        (sse4_1_<code>v4qiv4si2<mask_name>, sse4_1_<code>v4hiv4si2<mask_name>,
        sse4_1_<code>v2qiv2di2<mask_name>, sse4_1_<code>v2hiv2di2<mask_name>,
        sse4_1_<code>v2siv2di2<mask_name>): Likewise.

2016-05-24  Jeff Law  <law@redhat.com>

        * tree-ssa-threadbackwards.c (convert_and_register_jump_thread_path):
        New function, extracted from...
        (fsm_find_control_statement_thread_paths): Here.  Use the new function.
        Allow simple copies and constant initializations in the SSA chain.

2016-05-24  Marek Polacek  <polacek@redhat.com>

        PR c/71249
        * gimplify.c (gimplify_switch_expr): Look into the innermost lexical
        scope.

2016-05-24  Jakub Jelinek  <jakub@redhat.com>

        PR c++/71257
        * tree-vect-stmts.c (vectorizable_simd_clone_call): Handle
        SIMD_CLONE_ARG_TYPE_LINEAR_REF_CONSTANT_STEP like
        SIMD_CLONE_ARG_TYPE_LINEAR_CONSTANT_STEP.  Add
        SIMD_CLONE_ARG_TYPE_LINEAR_VAL_CONSTANT_STEP and
        SIMD_CLONE_ARG_TYPE_LINEAR_UVAL_CONSTANT_STEP cases explicitly.

2016-05-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71240
        * tree-ssa-math-opts.c (init_symbolic_number): Verify the source
        has integral type.

2016-05-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71230
        * tree-ssa-reassoc.c (zero_one_operation): Handle negate special ops.

2016-05-24  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vectorizer.h (vectorizable_comparison): Delete.
        * tree-vect-loop.c (vectorizable_reduction): Remove redundant
        PURE_SLP_STMT check.
        * tree-vect-stmts.c (vectorizable_call): Likewise.
        (vectorizable_simd_clone_call): Likewise.
        (vectorizable_conversion): Likewise.
        (vectorizable_assignment): Likewise.
        (vectorizable_shift): Likewise.
        (vectorizable_operation): Likewise.
        (vectorizable_load): Likewise.
        (vectorizable_condition): Likewise.
        (vectorizable_store): Likewise.  Assert that we don't have
        hybrid SLP.
        (vectorizable_comparison): Make static.  Remove redundant
        PURE_SLP_STMT check.
        (vect_transform_stmt): Assert that we always have an slp_node
        if PURE_SLP_STMT.

2016-05-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/neon.md (ashldi3_neon):  Replace comparison of INTVAL of
        operands[2] against 1 with comparison against CONST1_RTX.
        (<shift>di3_neon): Likewise.
        * config/arm/predicates.md (const0_operand): Replace with comparison
        against CONST0_RTX.

2016-05-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.md (ashldi3): Replace comparison of INTVAL of
        operands[2] against 1 with comparison against CONST1_RTX.
        (ashrdi3): Likewise.
        (lshrdi3): Likewise.
        (ashlsi3): Replace cast of INTVAL to unsigned HOST_WIDE_INT with
        UINTVAL.
        (ashrsi3): Likewise.
        (lshrsi3): Likewise.
        (rotrsi3): Likewise.
        (define_split above *compareqi_eq0): Likewise.
        (define_split above "prologue"): Likewise.
        * config/arm/arm.c (thumb1_size_rtx_costs): Likewise.
        * config/arm/predicates.md (shift_operator): Likewise.
        (shift_nomul_operator): Likewise.
        (sat_shift_operator): Likewise.
        (thumb1_cmp_operand): Likewise.
        (const_neon_scalar_shift_amount_operand): Replace manual range
        check with IN_RANGE.
        * config/arm/thumb1.md (define_peephole2 above *thumb_subdi3):
        Replace cast of INTVAL to unsigned HOST_WIDE_INT with UINTVAL.

2016-05-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.md (andsi3): Replace cast of 1 to HOST_WIDE_INT
        with HOST_WIDE_INT_1.
        (insv): Likewise.
        * config/arm/arm.c (optimal_immediate_sequence): Replace cast of
        1 to unsigned HOST_WIDE_INT with HOST_WIDE_INT_1U.
        (arm_canonicalize_comparison): Likewise.
        (thumb1_rtx_costs): Replace cast of 1 to HOST_WIDE_INT with
        HOST_WIDE_INT_1.
        (thumb1_size_rtx_costs): Likewise.
        (vfp_const_double_index): Replace cast of 1 to unsigned
        HOST_WIDE_INT with HOST_WIDE_INT_1U.
        (get_jump_table_size): Replace cast of 1 to HOST_WIDE_INT with
        HOST_WIDE_INT_1.
        (arm_asan_shadow_offset): Replace cast of 1 to unsigned
        HOST_WIDE_INT with HOST_WIDE_INT_1U.
        * config/arm/neon.md (vec_set<mode>): Replace cast of 1 to
        HOST_WIDE_INT with HOST_WIDE_INT_1.

2016-05-24  Marek Polacek  <polacek@redhat.com>

        * tree-cfg.h (should_remove_lhs_p): New predicate.
        * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Use it.
        * gimplify.c (gimplify_modify_expr): Likewise.
        * tree-cfg.c (verify_gimple_call): Likewise.
        * tree-cfgcleanup.c (fixup_noreturn_call): Likewise.
        * gimple-fold.c: Include "tree-cfg.h".
        (gimple_fold_call): Use should_remove_lhs_p.

2016-05-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71253
        * cfganal.h (control_dependences): Make robust against edge
        and BB removal.
        (control_dependences::control_dependences): Remove edge_list argument.
        (control_dependences::get_edge): Remove.
        (control_dependences::get_edge_src): Add.
        (control_dependences::get_edge_dest): Likewise.
        (control_dependences::m_el): Make a vector of edge src/dest index.
        * cfganal.c (control_dependences::find_control_dependence): Adjust.
        (control_dependences::control_dependences): Likewise.
        (control_dependences::~control_dependence): Likewise.
        (control_dependences::get_edge): Remove.
        (control_dependences::get_edge_src): Add.
        (control_dependences::get_edge_dest): Likewise.
        * tree-ssa-dce.c (mark_control_dependent_edges_necessary): Use
        get_edge_src.
        (perform_tree_ssa_dce): Adjust.
        * tree-loop-distribution.c (create_edge_for_control_dependence): Use
        get_edge_src.
        (pass_loop_distribution::execute): Adjust.  Do loop destroying
        conditional on changed.

2016-05-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/69857
        * config/arm/arm.c (gen_operands_ldrd_strd): Remove bogus early
        return.  Reindent transformation comment and mention the ARM state
        behavior.

2016-05-24  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/71252
        * tree-ssa-reassoc.c (rewrite_expr_tree_parallel): Add stmt_to_insert
        after build_and_add_sum creates new use stmt.

2016-05-24  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-stmts.c (vectorizable_load): Reorder checks so that
        load_lanes/grouped_load classification comes first.  Don't check
        whether the vectorization factor is a multiple of the group size
        for load_lanes.

2016-05-24  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-data-refs.c (vect_analyze_group_access_1): Set
        GROUP_GAP for single-element interleaving.
        * tree-vect-stmts.c (vectorizable_load): Remove force_peeling
        variable.

2016-05-24  Richard Biener  <rguenther@suse.de>

        PR middle-end/70434
        PR c/69504
        * tree-ssa.c (non_rewritable_mem_ref_base): Make sure to mark
        bases which are accessed with non-invariant indices.
        * gimple-fold.c (maybe_canonicalize_mem_ref_addr): Re-write
        constant index ARRAY_REFs of vectors into BIT_FIELD_REFs.

2016-05-24  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/71170
        * tree-ssa-reassoc.c (struct operand_entry): Add field stmt_to_insert.
        (add_to_ops_vec): Add stmt_to_insert.
        (add_repeat_to_ops_vec): Init stmt_to_insert.
        (insert_stmt_before_use): New.
        (transform_add_to_multiply): Remove mult_stmt insertion and add it
        to ops vector.
        (get_ops): Init stmt_to_insert.
        (maybe_optimize_range_tests): Likewise.
        (rewrite_expr_tree): Insert stmt_to_insert before use stmt.
        (rewrite_expr_tree_parallel): Likewise.
        (reassociate_bb): Likewise.

2016-05-23  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/71201
        * config/rs6000/altivec.md (altivec_vperm_<mode>_internal): Drop
        ISA 3.0 xxperm fusion alternative.
        (altivec_vperm_v8hiv16qi): Likewise.
        (altivec_vperm_<mode>_uns_internal): Likewise.
        (vperm_v8hiv4si): Likewise.
        (vperm_v16qiv8hi): Likewise.

2016-05-23  Michael Meissner  <meissner@linux.vnet.ibm.com>
            Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/rs6000.c (rs6000_expand_vector_set): Generate
        vpermr/xxpermr on ISA 3.0.
        (altivec_expand_vec_perm_le): Likewise.
        * config/rs6000/altivec.md (UNSPEC_VPERMR): New unspec.
        (altivec_vpermr_<mode>_internal): Add VPERMR/XXPERMR support for
        ISA 3.0.

2016-05-23  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (IS_STACK_MODE): Enable for
        TARGET_MIX_SSE_I387.  Rewrite using X87_FLOAT_MODE_P and
        SSE_FLOAT_MODE_P macros.
        * config/i386/i386.c (ix86_preferred_reload_class): Use
        IS_STACK_MODE, INTEGER_CLASS_P, FLOAT_CLASS_P and Q_CLASS_P macros.
        Cleanup regclass processing for CONST_DOUBLE_P.
        (ix86_preferred_output_reload_class): Use IS_STACK_MODE macro.
        (ix86_rtx_costs): Remove redundant TARGET_80387 check
        with IS_STACK_MODE macro.
        * config/i386/i386.md: Replace SSE_FLOAT_MODE_P (DFmode)
        with TARGET_SSE2.
        (*movdf_internal): Use IS_STACK_MODE macro.
        (*movsf_internal): Ditto.

2016-05-23  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (a * (1 << b), ~x & ~y, ~X ^ ~Y, (X ^ Y) ^ Y, ~ (-A),
        ~ (A - 1), ~(~X >> Y), ~(~X >>r Y)): Relax constraints.

2016-05-23  Jeff Law  <law@redhat.com>

        * tree-ssa-threadbackward.c (profitable_jump_thread_path): New function
        extracted from ...
        (fsm_find_control_statement_thread_paths): Call it.

2016-05-23  Martin Jambor  <mjambor@suse.cz>

        PR ipa/71234
        * ipa-cp.c (ipa_get_indirect_edge_target_1): Only check value of
        from_global_constant if t is not NULL.

2016-05-23  Marek Polacek  <polacek@redhat.com>

        PR c/49859
        * common.opt (Wswitch-unreachable): New option.
        * doc/invoke.texi: Document -Wswitch-unreachable.
        * gimplify.c (gimplify_switch_expr): Implement the -Wswitch-unreachable
        warning.

2016-05-23  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-address.c (copy_ref_info): Check NULL TMR_STEP when
        TMR_INDEX is non-NULL.

2016-05-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71230
        * tree-ssa-reassoc.c (acceptable_pow_call): Move initial condition...
        (try_special_add_to_ops): ... here.  Always test for single-use.

2016-05-23  Martin Jambor  <mjambor@suse.cz>

        * hsa-gen.c (gen_hsa_insns_for_switch_stmt): Create an empty
        default block if a PHI node in the original one would be resized.

2016-05-23  Venkataramanan Kumar  <venkataramanan.kumar@amd.com>

        PR tree-optimization/58135
        * tree-vect-slp.c: When group size is not multiple
        of vector size, allow splitting of store group at
        vector boundary.

2016-05-23  Christophe Lyon  <christophe.lyon@linaro.org>

        * config/arm/arm_neon.h (vtst_p16, vtstq_p16): New.

2016-05-22  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (vec_set_lo_<mode><mask_name>,
        vec_set_hi_<mode><mask_name>): Add && <mask_avx512dq_condition>
        condition.  For !TARGET_AVX512DQ, emit 32x4 instruction instead
        of 64x2.

        * config/i386/sse.md (vec_set_lo_v16hi, vec_set_hi_v16hi,
        vec_set_lo_v32qi, vec_set_hi_v32qi): Add alternative with
        v constraint instead of x and vinserti32x4 insn.

        * config/i386/sse.md (i128vldq): New mode iterator.
        (avx2_vbroadcasti128_<mode>, avx_vbroadcastf128_<mode>): Add
        avx512dq and avx512vl alternatives.

        * config/i386/sse.md (avx2_vec_dupv4df): Use v instead of x
        constraint, use maybe_evex prefix instead of vex.
        (vec_dupv4sf): Use v constraint instead of x for output
        operand except for noavx alternative, use Yv constraint
        instead of x for input.  Use maybe_evex prefix instead of vex.
        (*vec_dupv4si): Likewise.
        (*vec_dupv2di): Likewise.

2016-05-22  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/40921
        * tree-ssa-reassoc.c (try_special_add_to_ops): New.
        (linearize_expr_tree): Call try_special_add_to_ops.
        (reassociate_bb): Convert MULT_EXPR by (-1) to NEGATE_EXPR.

2016-05-21  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

        * config/avr/avr.c (avr_expand_prologue): Add INCOMING_FRAME_SP_OFFSET
        to computed stack_usage.

2016-05-21  Pitchumani Sivanupandi  <pitchumani.s@atmel.com>

        PR target/71103
        * config/avr/avr.md (define_expand "mov<mode>"): If the source
        operand is subreg (symbol_ref) then move the symbol ref to register.

2016-05-21  Jan Hubicka  <hubicka@ucw.cz>

        * tree.c (array_at_struct_end_p): Look through MEM_REF.

2016-05-21  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/71179
        * tree-ssa-reassoc.c (transform_add_to_multiply): Disallow float
        VECTOR type.

2016-05-20  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-vrp.c (compare_values_warnv): Simplify handling of symbolic
        ranges by calling get_single_symbol and tidy up.  Look more closely
        into NAME + CST1 vs CST2 comparisons if type overflow is undefined.

2016-05-20  Jeff Law  <law@redhat.com>

        * bitmap.c (bitmap_find_bit): Remove useless test.

2016-05-20  Segher Boessenkool  <segher@kernel.crashing.org>

        * function.c (thread_prologue_and_epilogue_insns): Commit the
        insertion of the epilogue.

2016-05-20  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/70884
        * tree-sra.c (initialize_constant_pool_replacements): Do not check
        should_scalarize_away_bitmap and cannot_scalarize_away_bitmap bits.
        (sort_and_splice_var_accesses): Do not consider multiple scalar reads
        of constant pool data as a reason for scalarization.

2016-05-20  Eric Botcazou  <ebotcazou@adacore.com>

        * config/arm/arm.c (arm_expand_prologue): Set the stack usage to 0
        for naked functions.
        (thumb1_expand_prologue): Likewise.

2016-05-20  Nathan Sidwell  <nathan@acm.org>

        * config/nvptx/nptx.c (nvptx_option_override): Only set
        flag_toplevel_reorder, if not explicitly specified.  Set
        flag_no_common, unless explicitly specified.

2016-05-20  David Malcolm  <dmalcolm@redhat.com>

        * calls.c (can_implement_as_sibling_call_p): Mark param
        reg_parm_stack_space with ATTRIBUTE_UNUSED.

2016-05-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_rtx_costs) <case CONST_DOUBLE>:
        Use IS_STACK_MODE when calculating cost of standard 80387 constants.
        Fallthru to CONST_VECTOR case to calculate cost of standard SSE
        constants.
        <case CONST_WIDE_INT>: Calculate cost of (MEM (SYMBOL_REF)).
        (ix86_legitimate_constant_p): Use CASE_CONST_SCALAR_INT
        and CASE_CONST_ANY.

2016-05-20  Cesar Philippidis  <cesar@codesourcery.com>

        * config/nvptx/nvptx.md (sincossf3): New pattern.

2016-05-20  David Malcolm  <dmalcolm@redhat.com>

        * calls.c (maybe_complain_about_tail_call): New function.
        (initialize_argument_information): Call
        maybe_complain_about_tail_call when clearing *may_tailcall.
        (can_implement_as_sibling_call_p): Call
        maybe_complain_about_tail_call when returning false.
        (expand_call): Read CALL_EXPR_MUST_TAIL_CALL and, if set,
        ensure try_tail_call is set.  Call maybe_complain_about_tail_call
        if tail-call optimization fails.
        * cfgexpand.c (expand_call_stmt): Initialize
        CALL_EXPR_MUST_TAIL_CALL from gimple_call_must_tail_p.
        * gimple-pretty-print.c (dump_gimple_call): Dump
        gimple_call_must_tail_p.
        * gimple.c (gimple_build_call_from_tree): Call
        gimple_call_set_must_tail with the value of
        CALL_EXPR_MUST_TAIL_CALL.
        * gimple.h (enum gf_mask): Add GF_CALL_MUST_TAIL_CALL.
        (gimple_call_set_must_tail): New function.
        (gimple_call_must_tail_p): New function.
        * print-tree.c (print_node): Update printing of TREE_STATIC
        to reflect its use for CALL_EXPR_MUST_TAIL_CALL.
        * tree-core.h (struct tree_base): Add MUST_TAIL_CALL to the
        trailing comment listing applicable flags.
        * tree.h (CALL_EXPR_MUST_TAIL_CALL): New macro.

2016-05-20  David Malcolm  <dmalcolm@redhat.com>

        * calls.c (expand_call): Move "Rest of purposes for tail call
        optimizations to fail" to...
        (can_implement_as_sibling_call_p): ...this new function, and
        split into multiple "if" statements.

2016-05-20  Jan Hubicka  <hubicka@ucw.cz>

        * cfgloop.h (expected_loop_iterations_unbounded,
        expected_loop_iterations): Unconstify.
        * cfgloopanal.c (expected_loop_iterations_unbounded): Sanity check the
        profile with known upper bound; return 3 when profile is absent.
        (expected_loop_iterations): Update.

2016-05-20  Jan Hubicka  <hubicka@ucw.cz>

        * loop-doloop.c (doloop_optimize): Use get_estimated_loop_iterations_int
        and get_max_loop_iterations_int.

2016-05-20  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-niter.c (idx_infer_loop_bounds): We can not produce
        realistic upper bounds here.

2016-05-20  Jakub Jelinek  <jakub@redhat.com>

        PR c++/71210
        * gimple-fold.c (gimple_fold_call): Do not remove lhs of noreturn
        calls if the LHS is variable length or has addressable type.
        If targets[0]->decl is a noreturn call with void return type and
        zero arguments, adjust fntype and remove lhs in that case.

2016-05-20  Marc Glisse  <marc.glisse@inria.fr>

        PR tree-optimization/71079
        PR tree-optimization/71206
        * match.pd ((X ^ Y) ^ (X ^ Z)): Convert the arguments.

2016-05-20  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * tree-vectorizer.c (get_vec_alignment_for_decl): New static function.
        (get_vec_alignment_for_array_decl): Likewise.
        (get_vec_alignment_for_record_decl): Likewise.
        (increase_alignment::execute): Move code to find alignment to
        get_vec_alignment_for_array_decl and call get_vec_alignment_for_decl.
        (type_align_map): New hash_map.

2016-05-20  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/29756
        * tree.def (BIT_INSERT_EXPR): New tcc_expression tree code.
        * expr.c (expand_expr_real_2): Handle BIT_INSERT_EXPR.
        * fold-const.c (operand_equal_p): Likewise.
        (fold_ternary_loc): Add constant folding of BIT_INSERT_EXPR.
        * gimplify.c (gimplify_expr): Handle BIT_INSERT_EXPR.
        * tree-inline.c (estimate_operator_cost): Likewise.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        * tree-ssa-operands.c (get_expr_operands): Likewise.
        * cfgexpand.c (expand_debug_expr): Likewise.
        * gimple-pretty-print.c (dump_ternary_rhs): Likewise.
        * gimple.c (get_gimple_rhs_num_ops): Handle BIT_INSERT_EXPR.
        * tree-cfg.c (verify_gimple_assign_ternary): Verify BIT_INSERT_EXPR.
        * tree-ssa.c (non_rewritable_lvalue_p): We can rewrite
        vector inserts using BIT_FIELD_REF or MEM_REF on the lhs.
        (execute_update_addresses_taken): Do it.

2016-05-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71185
        * tree-ssa-loop-prefetch.c (gather_memory_references): Drop
        register operations.

2016-05-20  Richard Biener  <rguenther@suse.de>

        * tree-if-conv.c (add_bb_predicate_gimplified_stmts): Use
        gimple_seq_add_seq_without_update.
        (release_bb_predicate): Assert we have no operands to free.
        (if_convertible_loop_p_1): Calculate post dominators later.
        Do not free BB predicates here.
        (combine_blocks): Do not recompute BB predicates.
        (version_loop_for_if_conversion): Save BB predicates around
        loop versioning.

2016-05-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * function.c (make_epilogue_seq): Remove epilogue_end parameter.
        (thread_prologue_and_epilogue_insns): Remove bb_flags.  Restructure
        code.  Ignore sibcalls on EDGE_IGNORE edges.
        * shrink-wrap.c (handle_simple_exit): New function.  Set EDGE_IGNORE
        on edges for sibcalls that run without prologue.  The rest of the
        function is combined from...
        (fix_fake_fallthrough_edge): ... this, and ...
        (try_shrink_wrapping): ... a part of this.  Remove the bb_with
        function argument, make it a local variable.

2016-05-19  Sandra Loosemore  <sandra@codesourcery.com>

        * config/i386/cygming.h (DWARF2_UNWIND_INFO): Allow
        --disable-sjlj-exceptions for TARGET_BI_ARCH to select DWARF-2 EH
        for 32-bit mode and SEH for 64-bit.
        * config/i386/mingw32.h (SHARED_LIBGCC_UNDEFS_SPEC): Handle
        TARGET_64BIT_DEFAULT.

2016-05-19  Ryan Burn  <contact@rnburn.com>

        * Makefile.in (GTFILES): Add cilk.h and cilk-common.c.
        * gengtype.c (open_base_files): Add cilk.h to ifiles.

2016-05-19  Uros Bizjak  <ubizjak@gmail.com>

        * sched-deps.c (sched_analyze_2) <case TRAP_IF>: Also
        force pending loads from memory.

2016-05-19  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/altivec.md (UNSPEC_DARN): New unspec constant.
        (UNSPEC_DARN_32): New unspec constant.
        (UNSPEC_DARN_RAW): New unspec constant.
        (darn_32): New instruction.
        (darn_raw): New instruction.
        (darn): New instruction.
        * config/rs6000/rs6000-builtin.def (RS6000_BUILTIN_0): Add
        support and documentation for this macro.
        (BU_P9_MISC_1): New macro definition.
        (BU_P9_64BIT_MISC_0): New macro definition.
        (BU_P9_MISC_0): New macro definition.
        (darn_32): New builtin definition.
        (darn_raw): New builtin definition.
        (darn): New builtin definition.
        * config/rs6000/rs6000.c: Add #define RS6000_BUILTIN_0 and #undef
        RS6000_BUILTIN_0 directives to surround each occurrence of
        #include "rs6000-builtin.def".
        (rs6000_builtin_mask_calculate): Add in the RS6000_BTM_MODULO and
        RS6000_BTM_64BIT flags to the returned mask, depending on
        configuration.
        (def_builtin): Correct an error in the assignments made to the
        debugging variable attr_string.
        (rs6000_expand_builtin): Add support for no-operand built-in
        functions.
        (builtin_function_type): Remove fatal_error assertion that is no
        longer valid.
        (rs6000_common_init_builtins): Add support for no-operand built-in
        functions.
        * config/rs6000/rs6000.h (RS6000_BTM_MODULO): New macro
        definition.
        (RS6000_BTM_PURE): Enhance comment to clarify intent of this flag
        definition.
        (RS6000_BTM_64BIT): New macro definition.
        * doc/extend.texi: Document __builtin_darn (void),
        __builtin_darn_raw (void), and __builtin_darn_32 (void) built-in
        functions.

2016-05-19  Jan Hubicka  <hubicka@ucw.cz>

        * tree-vect-loop.c (vect_analyze_loop_2): Use also
        max_loop_iterations_int.

2016-05-19  Marek Polacek  <polacek@redhat.com>

        PR tree-optimization/71031
        * tree-vrp.c (extract_range_from_binary_expr_1): Turn assert into a
        condition and adjust the code a bit.

2016-05-19  Martin Liska  <mliska@suse.cz>

        * tree-vect-stmts.c (vectorizable_simd_clone_call): Utilize
        auto_vec instead of vec.

2016-05-19  Martin Liska  <mliska@suse.cz>

        * tree-parloops.c (oacc_entry_exit_ok): Release a vector.

2016-05-19  Martin Liska  <mliska@suse.cz>

        * tree-if-conv.c (ifcvt_repair_bool_pattern): Utilize auto_vecs.

2016-05-19  Martin Liska  <mliska@suse.cz>

        * ipa-pure-const.c (set_function_state): Remove an existing
        funct_state.
        (remove_node_data): Do not free it as it's released
        in set_function_state.

2016-05-19  Martin Liska  <mliska@suse.cz>

        * tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Release
        bitmap.

2016-05-19  Martin Liska  <mliska@suse.cz>

        * omp-simd-clone.c (simd_clone_adjust): Release vector.

2016-05-19  Martin Liska  <mliska@suse.cz>

        * tree-ssa-reassoc.c (eliminate_duplicate_pair): Truncate
        an auto_vec instead of re-creating it.

2016-05-19  Martin Liska  <mliska@suse.cz>

        * tree-ssa-loop-prefetch.c (determine_loop_nest_reuse): Use
        auto_vec instead of vec.

2016-05-19  Martin Liska  <mliska@suse.cz>

        * lto-section-in.c (lto_get_section_data): Call
        lto_check_version with additional argument.
        * lto-streamer.c (lto_check_version): Add new argument.
        * lto-streamer.h (lto_check_version): Likewise.

2016-05-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.c (arm_new_rtx_costs, SIGN_EXTEND case):
        Don't add cost of inner memory when handling sign-extended loads.

2016-05-19  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR rtl-optimization/71148
        * cse.c (cse_main): Free dominance info.
        (rest_of_handle_cse): Don't free dominance info.
        (rest_of_handle_cse2): Likewise.
        (rest_of_handle_cse_after_global_opts): Likewise.

2016-05-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/71056
        * config/arm/arm-builtins.c (arm_builtin_vectorized_function): Return
        NULL_TREE early if NEON is not available.  Remove now redundant check
        in ARM_CHECK_BUILTIN_MODE.

2016-05-19  Maxim Ostapenko  <m.ostapenko@samsung.com>

        PR sanitizer/64354
        * cppbuiltin.c (define_builtin_macros_for_compilation_flags): Add new
        builtin __SANITIZE_THREAD__ macros for fsanitize=thread switch.
        * doc/cpp.texi: Document new macros.

2016-05-19  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/69848
        * tree-vect-loop.c (vectorizable_reduction): Don't factor
        comparison expr out of VEC_COND_EXPR for COND_REDUCTION.

2016-05-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * function.c (thread_prologue_and_epilogue_insn): Move the
        "goto epilogue_done" one block later.

2016-05-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70729
        * passes.def: Move LIM pass before PRE.  Remove no longer
        required copyprop and move first DCE out of the loop pipeline.

2016-05-18  David Malcolm  <dmalcolm@redhat.com>

        PR driver/69265
        * Makefile.in (GCC_OBJS): Move spellcheck.o to...
        (OBJS-libcommon-target): ...here.
        * opts-common.c: Include spellcheck.h.
        (cmdline_handle_error): Build a vec of valid options and use it
        to suggest provide hints for misspelled arguments.

2016-05-18  Jakub Jelinek  <jakub@redhat.com>

        PR c++/71100
        * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Don't drop
        lhs if it has TREE_ADDRESSABLE type.

2016-05-18  Uros Bizjak  <ubizjak@gmail.com>

        PR target/71145
        * config/alpha/alpha.md (trap): Add (use (reg:DI 29)).
        (*exception_receiver_1): Return "#" for TARGET_EXPLICIT_RELOCS.

2016-05-18  Martin Jambor  <mjambor@suse.cz>

        PR ipa/69708
        * ipa-cp.c (ipa_get_jf_pass_through_result): Allow non-ip constant
        input for NOP_EXPR pass-through functions.
        * ipa-prop.c (ipa_compute_jump_functions_for_edge): Allow
        aggregate global constant VAR_DECLs in constant jump functions.

2016-05-18  Martin Jambor  <mjambor@suse.cz>

        PR ipa/69708
        * ipa-prop.c (parm_preserved_before_stmt_p): Return true for loads
        from TREE_READONLY parameters.

2016-05-18  Martin Jambor  <mjambor@suse.cz>

        PR ipa/69708
        * cgraph.h (cgraph_indirect_call_info): New field
        guaranteed_unmodified.
        * ipa-cp.c (ipa_get_indirect_edge_target_1): Also pass parameter value
        to ipa_find_agg_cst_for_param, check guaranteed_unmodified when
        appropriate.
        * ipa-inline-analysis.c (evaluate_conditions_for_known_args): Also
        pass the parameter value to ipa_find_agg_cst_for_param.
        * ipa-prop.c (ipa_load_from_parm_agg): New parameter
        guaranteed_unmodified, store AA results there instead of bailing out
        if present.
        (ipa_note_param_call): Also initialize guaranteed_unmodified flag.
        (ipa_analyze_indirect_call_uses): Also set guaranteed_unmodified flag.
        (find_constructor_constant_at_offset): New function.
        (ipa_find_agg_cst_from_init): Likewise.
        (ipa_find_agg_cst_for_param): Also seearch for aggregate values in
        static initializers of contants, report back through a new paameter
        from_global_constant if that was the case.
        (try_make_edge_direct_simple_call): Also pass parameter value to
        ipa_find_agg_cst_for_param, check guaranteed_unmodified when
        appropriate.
        (ipa_write_indirect_edge_info): Stream new flag guaranteed_unmodified.
        (ipa_read_indirect_edge_info): Likewise.
        * ipa-prop.h (ipa_find_agg_cst_for_param): Update declaration.
        (ipa_load_from_parm_agg): Likewise.

2016-05-18  Jiong Wang  <jiong.wang@arm.com>

        PR rtl-optimization/71150
        * lra-constraint (process_addr_reg): Guard "in_class_p" with REG_P
        check.

2016-05-18  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/70915
        * config/rs6000/constraints.md (wE constraint): New constraint
        for a vector constant that can be loaded with XXSPLTIB.
        (wM constraint): New constraint for a vector constant of a 1's.
        (wS constraint): New constraint for a vector constant that can be
        loaded with XXSPLTIB and a vector sign extend instruction.
        * config/rs6000/predicates.md (xxspltib_constant_split): New
        predicates for wE/wS constraints.
        (xxspltib_constant_nosplit): Likewise.
        (easy_vector_constant): Add support for constants that can be
        loaded via XXSPLTIB.
        (all_ones_constant): New predicate for vector constant with all
        1's set.
        (splat_input_operand): Add support for ISA 3.0 word splat operations.
        * config/rs6000/rs6000.c (xxspltib_constant_p): New function to
        return if a constant can be loaded with the ISA 3.0 XXSPLTIB
        instruction and possibly with a sign extension.
        (output_vec_const_move): Add support for XXSPLTIB. If we are
        loading up 0/-1 into Altivec registers, prefer using VSPLTISW
        instead of XXLXOR/XXLORC.
        (rs6000_expand_vector_init): Add support for ISA 3.0 word splat
        operations.
        (rs6000_legitimize_reload_address): Likewise.
        (rs6000_output_move_128bit): Use output_vec_const_move to emit
        constants.
        * config/rs6000/vsx.md (VSX_M): Add TImode (if -mvsx-timode) and
        combine VSX_M and VSX_M2 into one iterator.
        (VSX_M2): Likewise.
        (VSINT_84): New iterators for loading constants with XXSPLTIB.
        (VSINT_842): Likewise.
        (UNSPEC_VSX_SIGN_EXTEND): New UNSPEC.
        (xxspltib_v16qi): New insns to load up constants with the ISA 3.0
        XXSPLTIB instruction.
        (xxspltib_<mode>_nosplit): Likewise.
        (xxspltib_<mode>_split): New insn to load up constants with
        XXSPLTIB and a sign extend instruction.
        (vsx_mov<mode>): Replace single move that handled all vector types
        with separate 32-bit and 64-bit moves.  Combine the movti_<bit>
        moves (when -mvsx-timode is in effect) into the main vector
        moves.  Eliminate separate moves for <VSr> <VSa>, where the
        preferred register class (<VSr>) is listed first, and the
        secondary register class (<VSa>) is listed second with a '?' to
        discourage use.  Prefer loading 0/-1 in any VSX register for ISA
        3.0, and Altivec registers for ISA 2.06/2.07 (PR target/70915) so
        that if the register was involved in a slow operation, the
        clear/set operation does not wait for the slow operation to
        finish.  Adjust the length attributes for 32-bit mode.  Use
        rs6000_output_move_128bit and drop the use of the string
        instructions for 32-bit movti when -mvsx-timode is in effect.  Use
        spacing so that the alternatives and attributes don't generate
        long lines, and put things in columns, so that it is easier to
        match up the operands and attributes with the insn alternatives.
        (vsx_mov<mode>_64bit): Likewise.
        (vsx_mov<mode>_32bit): Likewise.
        (vsx_movti_64bit): Fold movti into normal vector moves.
        (vsx_movti_32bit): Likewise.
        (vsx_splat_<mode>, V4SI/V4SF modes): Add support for ISA 3.0 word
        splat instructions.
        (vsx_splat_v4si_internal): Likewise.
        (vsx_splat_v4sf_internal): Likewise.
        (vector fusion peepholes): Use VSX_M instead of VSX_M2.
        (vsx_sign_extend_qi_<mode>): New ISA 3.0 instructions to sign
        extend vector elements.
        (vsx_sign_extend_hi_<mode>): Likewise.
        (vsx_sign_extend_si_v2di): Likewise.
        * config/rs6000/rs6000-protos.h (xxspltib_constant_p): Add
        declaration.
        * doc/md.texi (PowerPC constraints): Document the wE, wM, and wS
        constraints.  Add trailing period to wL documentation.

2016-05-18  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/71020
        * tree-dfa.h (replace_abnormal_ssa_names): Declare.
        * tree-dfa.c (replace_abnormal_ssa_names): New function.
        * tree-call-cdce.c: Include tree-dfa.h.
        (can_guard_call_p): New function, extracted from...
        (can_use_internal_fn): ...here.
        (shrink_wrap_one_built_in_call_with_conds): Remove failure path
        and return void.
        (shrink_wrap_one_built_in_call): Likewise.
        (use_internal_fn): Likewise.
        (shrink_wrap_conditional_dead_built_in_calls): Update accordingly
        and return void.  Call replace_abnormal_ssa_names.
        (pass_call_cdce::execute): Check can_guard_call_p during the
        initial walk.  Assume shrink_wrap_conditional_dead_built_in_calls
        will always change something.

2016-05-18  Martin Jambor  <mjambor@suse.cz>

        PR ipa/70646
        * ipa-prop.c (determine_locally_known_aggregate_parts): Bail out early
        if parameter PARAM_IPA_MAX_AGG_ITEMS is zero.

2016-05-18  Martin Jambor  <mjambor@suse.cz>

        PR ipa/70646
        * ipa-inline.h (condition): New field size.
        * ipa-inline-analysis.c (add_condition): New parameter SIZE, use it
        for comaprison and store it into the new condition.
        (evaluate_conditions_for_known_args): Use condition size to check
        access sizes for all but CHANGED conditions.
        (unmodified_parm_1): New parameter size_p, store access size into it.
        (unmodified_parm): Likewise.
        (unmodified_parm_or_parm_agg_item): Likewise.
        (eliminated_by_inlining_prob): Pass NULL to unmodified_parm as size_p.
        (set_cond_stmt_execution_predicate): Extract access sizes and store
        them to conditions.
        (set_switch_stmt_execution_predicate): Likewise.
        (will_be_nonconstant_expr_predicate): Likewise.
        (will_be_nonconstant_predicate): Likewise.
        (inline_read_section): Stream condition size.
        (inline_write_summary): Likewise.

2016-05-18  Richard Biener  <rguenther@suse.de>

        * tree-ssa-loop-im.c (determine_max_movement): Properly add
        condition cost to PHI cost instead of total_cost.

2016-05-18  Martin Liska  <mliska@suse.cz>

        PR fortran/70856
        * ipa-icf.c (sem_variable::merge): Set DECL_PT_UID for
        merged variables.

2016-05-18  Richard Biener  <rguenther@suse.de>

        * lto-streamer.h (LTO_major_version): Bump to 6.

2016-05-18  Segher Boessenkool  <segher@kernel.crashing.org>

        * function.c (make_split_prologue_seq, make_prologue_seq,
        make_epilogue_seq): New functions, factored out from...
        (thread_prologue_and_epilogue_insns): Here.

2016-05-18  Segher Boessenkool  <segher@kernel.crashing.org>

        * function.c (rest_of_handle_thread_prologue_and_epilogue): Call
        cleanup_cfg with CLEANUP_EXPENSIVE after shrink-wrapping instead
        of before.  Add a comment.

2016-05-18  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (get_computation_cost_at): Check invariant
        expression pointer, not pointer to the pointer.

2016-05-18  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (pbroadcast_evex_isa): New mode attr.
        (avx2_pbroadcast<mode>): Add another alternative with v instead
        of x constraints in it, using <pbroadcast_evex_isa> isa.
        (avx2_pbroadcast<mode>_1): Similarly, add two such alternatives.

        * config/i386/sse.md (<ssse3_avx2>_palignr<mode>): Use
        constraint x instead of v in second alternative, add avx512bw
        alternative.

        * config/i386/sse.md (<ssse3_avx2>_pshufb<mode>3<mask_name>): Use
        constraint x instead of v in second alternative, add avx512bw
        alternative.

        * config/i386/sse.md (*<ssse3_avx2>_pmulhrsw<mode>3<mask_name>): Use
        constraint x instead of v in second alternative, add avx512bw
        alternative.

        * config/i386/sse.md (avx2_pmaddubsw256, ssse3_pmaddubsw128): Add
        avx512bw alternative.

2016-05-18  Kirill Yukhin  <kirill.yukhin@intel.com>

        * config/i386/sse.md (define_insn "*andnot<mode>3"): Extend static
        array to 128 chars.
        (define_insn "*andnottf3"): Ditto.
        (define_insn "*<code><mode>3"/any_logic): Ditto.
        (define_insn "*<code>tf3"/any_logic): Ditto.
        (define_insn "sse2_storehpd"): Use Yv constraint for scalar
        operand to block AVX-512VL insn variant emit when it is not enabled.

2016-05-18  Kirill Yukhin  <kirill.yukhin@intel.com>

        * config/i386/sse.md (define_insn "*vec_concatv2sf_sse4_1"): Use 'Yv'
        constraint fot SF mode.

2016-05-18  Petr Murzin  <petr.murzin@intel.com>
            Kirill Yukhin  <kirill.yukhin@intel.com>

        * config/i386/sse.md (define_insn "srcp14<mode>"): Use proper operand
        modifiers.
        (define_insn "rsqrt14<mode>"): Ditto.
        (define_insn "<mask_codefor>avx512dq_cvtps2qqv2di<mask_name>"): Ditto.
        (define_insn "<fixsuffix>fix_truncv2sfv2di2<mask_name>"): Ditto.
        (define_insn "avx512f_<code>v8div16qi2_mask_store"): Ditto.
        (define_insn "vec_set_hi_<mode><mask_name>"): Ditto.
        (define_insn "<mask_codefor>avx512dq_broadcast<mode><mask_name>"):
        Ditto.
        (define_insn "*avx512f_gatherdi<mode>"): Ditto.
        (define_insn "*avx512f_scatterdi<mode>"): Ditto.
        * config/i386/i386.c (ix86_print_operand): Expand check for size
        override codes for Intel syntax.

2016-05-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71168
        * tree-loop-distribution.c (distribute_loop): Move *destroy_p
        initialization earlier.

2016-05-18  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64-simd.md
        (aarch64_reduc_plus_internal<mode>): Rename to...
        (reduc_plus_scal): ...This, and remove previous implementation.

2016-05-18  Richard Biener  <rguenther@suse.de>

        * passes.def: Put late dse and cd_dce in canonical order.

2016-05-17  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline-transform.c (preserve_function_body_p): Look for
        first non-thunk clone.
        (save_function_body): Save into first non-thunk.
        * lto-cgraph.c (lto_output_edge): When streaming thunk do not look
        up call stmt id.
        (lto_output_node): Inline thunks don't need body in every
        partition.
        * lto-streamer-in.c: Do not fixup thunk clones.
        * cgraphclones.c (cgraph_node::create_edge_including_clone): Skip
        thunks.
        * tree-inline.c (copy_bb): Be prepared for target node to be new after
        folding suceeds.

2016-05-17  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/63586
        * tree-ssa-reassoc.c (transform_add_to_multiply): New.
        (reassociate_bb): Call transform_add_to_multiply.

2016-05-17  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * config/aarch64/aarch64.c (all_extensions): Removed unused
        static variable.

2016-05-17  Nathan Sidwell  <nathan@acm.org>

        * config/nvptx/nvptx.c (nvptx_function_arg_boundary): New.
        (TARGET_FUNCTION_ARG_BOUNDARY): Override.

2016-05-17  Mikhail Maltsev  <maltsevm@gmail.com>

        PR tree-optimization/54579
        PR middle-end/55299
        * match.pd (~(~X >> Y), ~(~X >>r Y), ~(~X <<r Y)): New patterns.

2016-05-17  Marek Polacek  <polacek@redhat.com>

        PR ipa/71146
        * tree-inline.c (expand_call_inline): Call
        maybe_remove_unused_call_args.

2016-05-17  Jim Wilson  <jim.wilson@linaro.org>

        * doc/cpp.texi (__GNUC__): Major version changes are no longer rare.
        * doc/invoke.texi (-mnan=2008): Change signalling to signaling.
        * doc/md.texi (fmin@var{m}3): Likewise.

2016-05-17  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (X & C): New transformation.

2016-05-17  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (~X & Y): New transformation.

2016-05-17  Marc Glisse  <marc.glisse@inria.fr>

        * tree-vrp.c (simplify_truth_ops_using_ranges): Set range
        information for new SSA_NAME.
        (simplify_conversion_using_ranges): Get range through get_range_info
        instead of get_value_range.

2016-05-17  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/arm_neon.h (vmvn_s8): Reimplement using C operator.
        Remove inline assembly.
        (vmvn_s16): Likewise.
        (vmvn_s32): Likewise.
        (vmvn_u8): Likewise.
        (vmvn_u16): Likewise.
        (vmvn_u32): Likewise.
        (vmvnq_s8): Likewise.
        (vmvnq_s16): Likewise.
        (vmvnq_s32): Likewise.
        (vmvnq_u8): Likewise.
        (vmvnq_u16): Likewise.
        (vmvnq_u32): Likewise.
        (vmvn_p8): Likewise.
        (vmvnq_p16): Likewise.

2016-05-17  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-simd.md (vmul_n_f32): Remove inline assembly.
        Use builtin.
        (vmul_n_s16): Likewise.
        (vmul_n_s32): Likewise.
        (vmul_n_u16): Likewise.
        (vmul_n_u32): Likewise.
        (vmulq_n_f32): Likewise.
        (vmulq_n_f64): Likewise.
        (vmulq_n_s16): Likewise.
        (vmulq_n_s32): Likewise.
        (vmulq_n_u16): Likewise.
        (vmulq_n_u32): Likewise.

2016-05-17  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-simd.md (*aarch64_mul3_elt_to_128df): Extend
        to all supported modes.  Rename to "*aarch64_mul3_elt_from_dup".

2016-05-17  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-simd.md (*aarch64_fma4_elt_to_128df): Rename
        to *aarch64_fma4_elt_from_dup<mode>.
        (*aarch64_fnma4_elt_to_128df): Rename to
        *aarch64_fnma4_elt_from_dup<mode>.
        * config/aarch64/arm_neon.h (vfma_n_f64): New.
        (vfms_n_f32): Likewise.
        (vfms_n_f64): Likewise.
        (vfmsq_n_f32): Likewise.
        (vfmsq_n_f64): Likewise.

2016-05-17  Gerald Pfeifer  <gerald@pfeifer.com>

        * wide-int.h: Change fixed_wide_int_storage from class to struct.

2016-05-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71132
        * tree-loop-distribution.c (create_rdg_cd_edges): Pass in loop.
        Only add control dependences for blocks in the loop.
        (build_rdg): Adjust.
        (generate_code_for_partition): Return whether loop should
        be destroyed and delay that.
        (distribute_loop): Likewise.
        (pass_loop_distribution::execute): Record loops to be destroyed
        and perform delayed destroying of loops.

2016-05-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/70809
        * config/aarch64/aarch64-simd.md (aarch64_vmls<mode>): Delete.

2016-05-17  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64-elf.h (ASM_OUTPUT_DEF): Delete.

2016-05-17  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR target/71114
        * config/i386/i386.c (dimode_scalar_chain::convert_op): Fix
        insertion point for instructions generated by validize_mem.

2016-05-17  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64.c (SHIFT_COUNT_TRUNCATED): Wrap definition
        in brackets.

2016-05-17  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64.c
        (aarch64_output_simd_mov_immediate): Make "buf_size" a variable
        rather than a macro.

2016-05-16  Wilco Dijkstra  <wdijkstr@arm.com>

        * doc/invoke.texi (AArch64 Options): Various updates.

2016-05-16  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline-analysis.c (compute_inline_parameters): Disable inlinig
        into instrumentation thunks.
        * cif-code.def (CIF_CHKP): New.

2016-05-16  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/xopintrin.h: Correct "unsinged" typo in the comments.

2016-05-16  Martin Jambor  <mjambor@suse.cz>

        * hsa-gen.c (fillup_for_decl): Increase alignment to natural one.
        (get_symbol_for_decl): Sorry if a global symbol in under-aligned.

2016-05-16  Marek Polacek  <polacek@redhat.com>

        * gimple.c (maybe_remove_unused_call_args): Fix typos in the
        commentary.

2016-05-16  Martin Jambor  <mjambor@suse.cz>

        PR hsa/70857
        * omp-low.c (grid_expand_target_grid_body): Copy RESULT_DECL of
        the outlined kernel function.

2016-05-16  Robert Suchanek  <robert.suchanek@imgtec.com>

        * config/mips/mips.h (ISA_HAS_LSA): Enable for -mmsa.
        (ISA_HAS_DLSA): Ditto.

2016-05-16  Matthew Fortune  <matthew.fortune@imgtec.com>

        * config/mips/m5100.md (m51_int_load): Update the latency to 2.

2016-05-16  Nathan Sidwell  <nathan@acm.org>

        * config/nvptx/nvptx.c (nvptx_mangle_decl_assembler_name): Revert.
        (nvptx_name_replacement): Restore.  Add comment.
        (write_fn_proto, write_fn_proto_from_insn,
        nvptx_output_call_insn): Restore
        (TARGET_MANGLE_DECL_ASSEMBLER_NAME): Delete.

2016-05-16  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.md
        (add<mode>3_compareC_cconly_imm): Remove use of %w.
        (add<mode>3_compareC_imm): Likewise.
        (<optab>si3_uxtw): Split into register and immediate variants.
        (andsi3_compare0_uxtw): Likewise.
        (and<mode>3_compare0): Likewise.
        (and<mode>3nr_compare0): Likewise.
        (stack_protect_test_<mode>): Don't use %x for memory operands.

2016-05-16  Matthew Fortune  <matthew.fortune@imgtec.com>

        * config/mips/mips-cpus.def (p5600): Add multi-line brackets.

2016-05-16  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.md (aarch64_ashl_sisd_or_int_<mode>3):
        Split integer shifts into shift_reg and bfm.
        (aarch64_lshr_sisd_or_int_<mode>3): Likewise.
        (aarch64_ashr_sisd_or_int_<mode>3): Likewise.
        (ror<mode>3_insn): Likewise.
        (<optab>si3_insn_uxtw): Likewise.
        (<optab><mode>3_insn): Change to rotate_imm.
        (extr<mode>5_insn_alt): Likewise.
        (extrsi5_insn_uxtw): Likewise.
        (extrsi5_insn_uxtw_alt): Likewise.

2016-05-16  Matthew Wahab  <matthew.wahab@arm.com>

        * doc/tm.texi: Regenerate.
        * doc/tm.texi.in (TARGET_INVALID_PARAMETER_TYPE): Remove.
        (TARGET_INVALID_RETURN_TYPE): Remove.
        * system.h: Poison TARGET_INVALID_PARAMETER_TYPE and
        TARGET_INVALID_RETURN_TYPE.
        * target.def (invalid_parameter_type): Remove.
        (invalid_return_type): Remove.

2016-05-16  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline-analysis.c (compute_inline_parameters): Be more reailistic
        on estimating thunk bodies; do not set inline_failed to CIF_THUNK for
        calls from thunk.
        * ipa-inline-transform.c (inline_call): When inlining into thunk produce
        gimple body.
        (preserve_function_body_p): No need to preserve function body
        * cif-codes.def (CIF_THUNK): Remove.
        * cgraphclones.c (duplicate_thunk_for_node): Thunks calls are inlinable.

2016-05-16  Jan Hubicka  <hubicka@ucw.cz>

        * tree-inline.c (expand_call_inline): recurse after inlining thunk.

2016-05-16  Jan Hubicka  <hubicka@ucw.cz>

        * tree.c (free_lang_data_in_decl): Also set target/optimization flags
        for thunks.

2016-05-16  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline.c (report_inline_failed_reason): Look into thunks, too
        (inline_small_functions): Do not look for function symbol when
        resetting caches.

2016-05-16  Jan Hubicka  <hubicka@ucw.cz>

        * lto-cgraph.c (compute_ltrans_boundary, output_symtab): Fix handling
        of inline thunks

2016-05-16  Matthew Wahab  <matthew.wahab@arm.com>
            Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
            Jiong Wang  <jiong.wang@arm.com>

        * config/arm/arm-c.c (arm_cpu_builtins): Use def_or_undef_macro
        for __ARM_FP16_FORMAT_IEEE and __ARM_FP16_FORMAT_ALTERNATIVE.
        Define __ARM_FP16_ARGS when appropriate.
        * config/arm/arm.c (arm_invalid_parameter_type): Remove
        declaration.
        (arm_invalid_return_type): Likewise.
        (TARGET_INVALID_PARAMETER_TYPE): Remove.
        (TARGET_INVALID_RETURN_TYPE): Remove.
        (aapcs_vfp_sub_candidate): Allow HFmode.
        (aapcs_vfp_allocate): Add comment.  Support HFmode.
        (aapcs_vfp_allocate_return_reg): Likewise.
        (struct aapcs_cp_arg_layout): Slightly reword comments for
        is_return_candidate and allocate_return_reg.
        (output_mov_vfp): Update assert.
        (arm_hard_regno_mode_ok): Remove comment, update HF-mode
        condition.
        (arm_invalid_parameter_type): Remove.
        (amr_invalid_return_type): Remove.
        * config/arm/arm.h (TARGET_NEON_FP16): Fix definition.
        * config/arm/arm.md (*arm32_movhf): Disable for TARGET_VFP.
        * config/arm/vfp.md (*movhf_vfp): Enable for TARGET_VFP.

2016-05-16  Matthew Wahab  <matthew.wahab@arm.com>

        * config/aarch64/aarch64.h (LEGITIMIZE_RELOAD_ADDRESS): Remove.
        * config/aarch64/arch64-protos.h
        (aarch64_legitimize_reload_address): Remove.
        * config/aarch64/aarch64.c (aarch64_legitimize_reload_address):
        Remove.

2016-05-16  Eric Botcazou  <ebotcazou@adacore.com>

        * configure.ac: Add ACX_NONCANONICAL_HOST.
        * configure: Regenerate.
        * Makefile.in: Set host_noncanonical.

2016-05-14  Uros Bizjak  <ubizjak@gmail.com>

        PR target/71097
        * config/i386/i386.md (*movtf_internal): Before register allocation,
        do not allow FP constants for CM_MEDIUM memory model, allow only
        standard FP constants for CM_LARGE and CM_LARGE_PIC models.
        (*movxf_internal): Ditto.
        (*movdf_internal): Ditto.
        (*movsf_internal): Ditto.

2016-05-13  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/67483
        * combine.c (make_compound_operation): Don't call extract_left_shift
        with negative shift amounts.

2016-05-13  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/71071
        * fold-const.c (fold_checksum_tree): Allow modification
        of TYPE_ALIAS_SET during folding.

        * config/i386/i386.c (ix86_compute_frame_layout, ix86_expand_prologue,
        ix86_expand_split_stack_prologue): Use HOST_WIDE_INT_C macro.
        (ix86_split_to_parts): Likewise.  Fix up formatting.

2016-05-13  H.J. Lu  <hongjiu.lu@intel.com>

        * tree-ssa-loop-ivopts.c (create_new_ivs): Cast to
        unsigned HOST_WIDE_INT with HOST_WIDE_INT_PRINT_UNSIGNED in
        printf format.

2016-05-13  Nathan Sidwell  <nathan@acm.org>

        * config/nvptx/nvptx.c (nvptx_mangle_decl_assembler_name): New.
        (nvptx_name_replacement): Delete.
        (write_fn_proto, write_fn_proto_from_insn,
        nvptx_output_call_insn): Remove nvptx_name_replacement call.
        (TARGET_MANGLE_DECL_ASSEMBLER_NAME): Override.
        * langhooks.c (add_builtin_funcction_common): Call
        targetm.mangle_decl_assembler_name.

        * config/nvptx/nvptx.c (write_fn_proto): Handle
        BUILT_IN_ATOMIC_COMPARE_EXCHANGE_n oddity.

2016-05-13  Martin Liska  <mliska@suse.cz>

        * tree-ssa-loop-ivopts.c (create_new_ivs): Use HOST_WIDE_INT_PRINT_DEC
        and PRIu64 in printf format.

2016-05-13  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * tree-ssa-loop-ivanon.c (try_unroll_loop_completely): Typo fix in
        comment.

2016-05-13  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * tree-ssa-loop-ivcanon.c (try_unroll_loop_completely):
        Change --param max-completely-peeled-times to
        --param max-completely-peel-times in dump file printing.

2016-05-13  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/42587
        * tree-ssa-math-opts.c (perform_symbolic_merge): Handle BIT_FIELD_REF.
        (find_bswap_or_nop_1): Likewise.
        (bswap_replace): Likewise.

2016-05-13  Martin Liska  <mliska@suse.cz>

        * tree-vect-patterns.c (vect_recog_mask_conversion_pattern):
        Initialize a variable with default value.

2016-05-13  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi: Enhance explanation of error recovery
        of sanitizers.

2016-05-13  Martin Liska  <mliska@suse.cz>

        * tree-ssa-loop-ivopts.c (avg_loop_niter): Fix coding style.
        (struct cost_pair): Change inv_expr_id (int) to inv_expr
        (iv_inv_expr_ent *).
        (struct iv_inv_expr_ent): Comment struct fields.
        (sort_iv_inv_expr_ent): New function.
        (struct ivopts_data): Rename inv_expr_id to max_inv_expr_id.
        (struct iv_ca): Replace used_inv_expr and num_used_inv_expr with
        a hash_map between iv_inv_expr_ent and number of usages.
        (niter_for_exit): Fix coding style.
        (tree_ssa_iv_optimize_init): Use renamed variable.
        (determine_base_object): Fix coding style.
        (alloc_iv): Likewise.
        (find_interesting_uses_outside): Likewise.
        (add_candidate_1): Likewise.
        (add_standard_iv_candidates): Likewise.
        (set_group_iv_cost): Replace inv_expr_id with inv_expr.
        (prepare_decl_rtl): Fix coding style.
        (get_address_cost): Likewise.
        (get_shiftadd_cost): Likewise.
        (force_expr_to_var_cost): Likewise.
        (compare_aff_trees): Likewise.
        (get_expr_id): Restructure the function.
        (get_loop_invariant_expr_id): Renamed to
        get_loop_invariant_expr.
        (get_computation_cost_at): Replace usage of inv_expr_id with
        inv_expr.
        (get_computation_cost): Likewise.
        (determine_group_iv_cost_generic): Likewise.
        (determine_group_iv_cost_address): Likewise.
        (iv_period): Fix coding style.
        (iv_elimination_compare_lt): Likewise.
        (may_eliminate_iv): Likewise.
        (determine_group_iv_cost_cond):  Replace usage of inv_expr_id with
        inv_expr.
        (determine_group_iv_costs): Dump invariant expressions.
        (iv_ca_recount_cost): Use the newly added hash_map.
        (iv_ca_set_remove_invariants): Fix coding style.
        (iv_ca_set_add_invariants): Fix coding style.
        (iv_ca_set_no_cp): Utilize the newly added hash_map for used
        invariants.
        (iv_ca_set_cp): Likewise.
        (iv_ca_new): Initialize the newly added hash_map and remove
        initialization of fields.
        (iv_ca_free): Delete the hash_map.
        (iv_ca_dump): Dump invariant expressions.
        (iv_ca_extend): Fix coding style.
        (try_add_cand_for): Likewise.
        (create_new_ivs): Dump information about # of avg iterations and
        # of used invariant expressions.
        (rewrite_use_compare): Fix coding style.
        (free_loop_data): Set default value for max_inv_expr_id.

2016-05-13  Ilya Enkovich  <ilya.enkovich@intel.com>

        * cse.c (rest_of_handle_cse): Use cleanup_cfg
        returned value cse_cfg_altered computation.
        (rest_of_handle_cse2): Likewise.
        (rest_of_handle_cse_after_global_opts): Likewise.

2016-05-13  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        PR target/53440
        * config/arm/arm.c (arm32_output_mi_thunk): New.
        (arm_output_mi_thunk): Rename to arm_thumb1_mi_thunk. Rework
        to split Thumb1 vs TARGET_32BIT functionality.
        (arm_thumb1_mi_thunk): New.

2016-05-13  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/aarch64/aarch64.c (TARGET_OMIT_STRUCT_RETURN_REG): Set
        to true.

2016-05-13  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR target/71080
        * config/i386/i386.c (ix86_in_large_data_p): Guard against NULL exp.

2016-05-13  Eric Botcazou  <ebotcazou@adacore.com>

        * builtins.c (expand_builtin_memcmp): Do not emit the call here.
        (expand_builtin_trap): Emit a regular call.
        (set_builtin_user_assembler_name): Remove obsolete cases.
        * dse.c (scan_insn): Adjust.
        * except.c: Include calls.h.
        (sjlj_emit_function_enter): If DONT_USE_BUILTIN_SETJMP is defined,
        emit a regular call to setjmp.
        * expr.c (emit_block_move_hints): Call emit_block_copy_via_libcall.
        (block_move_libcall_safe_for_call_parm): Use memcpy builtin.
        (emit_block_move_via_libcall): Delete.
        (block_move_fn): Delete.
        (init_block_move_fn): Likewise.
        (emit_block_move_libcall_fn): Likewise.
        (emit_block_op_via_libcall): New function.
        (set_storage_via_libcall): Tidy up and use memset builtin.
        (block_clear_fn): Delete.
        (init_block_clear_fn): Likewise.
        (clear_storage_libcall_fn): Likewise.
        (expand_assignment): Call emit_block_move_via_libcall.
        Do not include gt-expr.h.
        * expr.h (emit_block_op_via_libcall): Declare.
        (emit_block_copy_via_libcall): New inline function.
        (emit_block_move_via_libcall): Likewise.
        (emit_block_comp_via_libcall): Likewise.
        (block_clear_fn): Delete.
        (init_block_move_fn): Likewise.
        (init_block_clear_fn): Likewise.
        (emit_block_move_via_libcall): Likewise.
        (set_storage_via_libcall): Add default parameter value.
        * libfuncs.h (enum libfunc_index): Remove obsolete values.
        (abort_libfunc): Delete.
        (memcpy_libfunc): Likewise.
        (memmove_libfunc): Likewise.
        (memcmp_libfunc): Likewise.
        (memset_libfunc): Likewise.
        (setbits_libfunc): Likewise.
        (setjmp_libfunc): Likewise.
        (longjmp_libfunc): Likewise.
        (profile_function_entry_libfunc): Likewise.
        (profile_function_exit_libfunc): Likewise.
        (gcov_flush_libfunc): Likewise.
        * optabs-libfuncs.c (build_libfunc_function): Set DECL_ARTIFICIAL
        and DECL_VISIBILITY on the declaration.
        (init_optabs): Do not initialize obsolete libfuncs.
        * optabs.c (prepare_cmp_insn): Call emit_block_comp_via_libcall.
        * tree-core.h (ECF_RET1): Define.
        (ECF_TM_PURE): Adjust.
        (ECF_TM_BUILTIN): Likewise.
        * tree.c (set_call_expr_flags): Deal with ECF_RET1.
        (build_common_builtin_nodes): Initialize abort builtin.
        Add ECF_RET1 on memcpy, memmove and memset builtins.
        Pass final flags for alloca and alloca_with_align builtins.
        * config/alpha/alpha.c (alpha_init_libfuncs): Do not initialize
        obsolete builtins.
        * config/ia64/ia64.c (ia64_vms_init_libfuncs): Likewise.
        * config/i386/i386.c (ix86_expand_set_or_movmem): Adjust call to
        set_storage_via_libcall and call emit_block_copy_via_libcall.

2016-05-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*call_got_x32): Change operand 0 to
        DImode before it is passed to ix86_output_call_operand.
        (*call_value_got_x32): Ditto for operand 1.

2016-05-12  Jiong Wang  <jiong.wang@arm.com>

        PR rtl-optimization/70904
        * lra-constraint.c (process_addr_reg): Relax the restriction on subreg
        reload for wide mode.

2016-05-12  Marek Polacek  <polacek@redhat.com>

        PR c/70756
        * langhooks-def.h (lhd_incomplete_type_error): Adjust declaration.
        * langhooks.c (lhd_incomplete_type_error): Add location parameter.
        * langhooks.h (incomplete_type_error): Likewise.
        * tree.c (size_in_bytes_loc): Renamed from size_in_bytes.  Add location
        parameter, pass it down to incomplete_type_error.
        * tree.h (size_in_bytes): New inline overload.
        (size_in_bytes_loc): Renamed from size_in_bytes.

2016-05-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71059
        * tree-ssa-pre.c (phi_translate_1): Fully fold translated
        nary before looking up or entering the expression into the VN
        hashes.
        * tree-ssa-sccvn.c (vn_nary_build_or_lookup): Fix comment typo.
        Make sure to re-use NARYs without result as inserted by
        phi-translation.

2016-05-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71062
        * tree-ssa-alias.h (struct pt_solution): Add vars_contains_restrict
        field.
        * tree-ssa-structalias.c (set_uids_in_ptset): Set
        vars_contains_restrict if the var is a restrict tag.
        * tree-ssa-alias.c (ptrs_compare_unequal): If vars_contains_restrict
        do not disambiguate pointers against it.
        (dump_points_to_solution): Re-structure and adjust for new
        vars_contains_restrict flag.
        * gimple-pretty-print.c (pp_points_to_solution): Likewise.

2016-05-12  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi: Explain connection between
        -fsanitize-recover=address and ASAN_OPTIONS="halt_on_error=1".

2016-05-12  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR tree-optimization/71006
        * tree-vect-loop.c (vect_determine_vectorization_factor): Don't
        consider COND_EXPR as a mask producer.

2016-05-12  Marek Polacek  <polacek@redhat.com>

        PR driver/71063
        * opts.c (common_handle_option): Detect missing argument for --help^.

2016-05-12  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/70830
        * config/arm/arm.c (arm_output_multireg_pop): Avoid POP instruction
        when popping the PC and within an interrupt handler routine.
        Add missing tab to output of "ldmfd".
        (output_return_instruction): Output LDMFD with SP update rather
        than POP when returning from interrupt handler.

2016-05-12  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.md (isa): Add x64_avx512dq, enable if
        TARGET_64BIT && TARGET_AVX512DQ.
        * config/i386/sse.md (*vec_extract<mode>): Add avx512bw alternatives.
        (*vec_extract<PEXTR_MODE12:mode>_zext): Add avx512bw alternative.
        (*vec_extract<ssevecmodelower>_0, *vec_extractv4si_0_zext,
        *vec_extractv2di_0_sse): Use v constraint instead of x constraint.
        (*vec_extractv4si): Add avx512dq and avx512bw alternatives.
        (*vec_extractv4si_zext): Add avx512dq alternative.
        (*vec_extractv2di_1): Add x64_avx512dq and avx512bw alternatives,
        use v instead of x constraint in other alternatives where possible.

        * config/i386/sse.md (sse2_loadld): Use v instead of x
        constraint in alternatives 0,1,4.

        * config/i386/sse.md (pinsr_evex_isa): New mode attr.
        (<sse2p4_1>_pinsr<ssemodesuffix>): Add 2 alternatives with
        v constraints instead of x and <pinsr_evex_isa> isa attribute.

        PR target/71019
        * config/i386/sse.md (<sse2_avx2>_packssdw<mask_name>,
        <sse4_1_avx2>_packusdw<mask_name>): Make sure EVEX encoded insn
        is not emitted unless TARGET_AVX512BW.
        (<sse2_avx2>_packuswb<mask_name>, <sse2_avx2>_packsswb<mask_name>):
        Likewise.  For TARGET_AVX512BW, use "=v" constraint instead of "=x"
        for the result operand.

        * config/i386/sse.md (*vec_setv4sf_sse4_1, sse4_1_insertps): Use v
        constraint instead of x in avx alternatives.  Use maybe_evex instead
        of vex prefix.

        * config/i386/constraints.md (Yv): New constraint.
        * config/i386/i386.h (VALID_AVX512VL_128_REG_MODE): Allow
        TFmode and V1TImode in xmm16+ registers for TARGET_AVX512VL.
        * config/i386/i386.md (avx512fvecmode): New mode attr.
        (*pushtf): Use v constraint instead of x.
        (*movtf_internal): Likewise.  For TARGET_AVX512VL and
        xmm16+ registers, use vmovdqu64 or vmovdqa64 instructions.
        (*absneg<mode>2): Use Yv constraint instead of x constraint.
        (*absnegtf2_sse): Likewise.
        (copysign<mode>3_const, copysign<mode>3_var): Likewise.
        * config/i386/sse.md (*andnot<mode>3): Add avx512vl and
        avx512f alternatives.
        (*andnottf3, *<code><mode>3, *<code>tf3): Likewise.

2016-05-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71060
        * tree-data-ref.c (initialize_data_dependence_relation): Do not
        require exact match of DR_BASE_OBJECT but only matching address and
        type.

2016-05-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70986
        * cfganal.c: Include cfgloop.h.
        (dfs_find_deadend): Prefer to take edges exiting loops.

2016-05-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * gcc.target/powerpc/pr70963.c: Require at least power8 at both
        compile and run time.

2016-05-11  Mikhail Maltsev  <maltsevm@gmail.com>

        PR c/43651
        * doc/invoke.texi (Wduplicate-decl-specifier): Document new option.

2016-05-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (legitimize_pic_address): Use
        copy_to_suggested_reg instead of gen_movsi.

2016-05-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/predicates.md (quad_memory_operand): Move most of
        the code into quad_address_p and call it to share code with
        vsx_quad_dform_memory_operand.
        (vsx_quad_dform_memory_operand): New predicate for ISA 3.0 vector
        d-form support.
        * config/rs6000/rs6000.opt (-mlra): Switch to being an option mask
        bit instead of being a separate word.  Split -mpower9-dform into
        two switches, -mpower9-dform-scalar and -mpower9-dform-vector.
        * config/rs6000/rs6000.c (RELOAD_REG_QUAD_OFFSET): New addr_mask
        for the register class supporting 128-bit quad word memory offsets.
        (mode_supports_vsx_dform_quad): Helper function to return if the
        register class uses quad word memory offsets.
        (rs6000_debug_addr_mask): Add support for quad word memory offsets.
        (rs6000_debug_reg_global): Always print if we are using LRA or not.
        (rs6000_setup_reg_addr_masks): If ISA 3.0 vector d-form
        instructions are enabled, set up the appropriate addr_masks for
        128-bit types.
        (rs6000_init_hard_regno_mode_ok): wb constraint is now based on
        -mpower9-dform-scalar, instead of -mpower9-dform.
        (rs6000_option_override_internal): Split -mpower9-dform into two
        switches, -mpower9-dform-scalar and -mpower9-dform-vector.  The
        -mpower9-dform switch sets or clears both.  If we are not using
        the LRA register allocator, do not enable -mpower9-dform-vector by
        default.  If we are using LRA, enable -mpower9-dform-vector and
        -mvsx-timode if it is appropriate.  Issue a warning if either
        -mpower9-dform-vector or -mvsx-timode are explicitly used without
        enabling LRA.
        (quad_address_offset_p): New helper function to return if the
        offset is legal for quad word memory instructions.
        (quad_address_p): New function to determin if GPR or vector
        register quad word memory addresses are legal.
        (mem_operand_gpr): Validate quad word address offsets.
        (reg_offset_addressing_ok_p): Add support for ISA 3.0 vector
        d-form (register + offset) instructions.
        (offsettable_ok_by_alignment): Likewise.
        (rs6000_legitimate_offset_address_p): Likewise.
        (legitimate_lo_sum_address_p): Likewise.
        (rs6000_legitimize_address): Likewise.
        (rs6000_legitimize_reload_address): Add more debug statements for
        -mdebug=addr.
        (rs6000_legitimate_address_p): Add support for ISA 3.0 vector
        d-form instructions.
        (rs6000_secondary_reload_memory): Add support for ISA 3.0 vector
        d-form instructions.  Distinguish different cases in debug
        output. (rs6000_secondary_reload_inner): Add support for ISA 3.0 vector
        d-form instructions.
        (rs6000_preferred_reload_class): Likewise.
        (rs6000_output_move_128bit): Add support for ISA 3.0 d-form
        instructions.  If ISA 3.0 is available, generate lxvx/stxvx instead
        of the ISA 2.06 indexed memory instructions.
        (rs6000_emit_prologue): If we have ISA 3.0 d-form instructions,
        use them to save/restore the saved vector registers instead of
        using Altivec instructions.
        (rs6000_emit_epilogue): Likewise.
        (rs6000_lra_p): Use TARGET_LRA instead of the old option word.
        (rs6000_opt_masks): Split -mpower9-dform into
        -mpower9-dform-scalar and -mpower9-dform-vector.
        (rs6000_print_options_internal): Print -mno-<switch> if <switch>
        was not selected.
        * config/rs6000/vsx.md (p9_vecload_<mode>): Delete hack to emit
        ISA 3.0 vector indexed memory instructions, and fold the code into
        the normal mov<mode> patterns.
        (p9_vecstore_<mode>): Likewise.
        (vsx_mov<mode>): Add support for ISA 3.0 vector d-form
        instructions.
        (vsx_movti_64bit): Likewise.
        (vsx_movti_32bit): Likewise.
        * config/rs6000/constraints.md (wO constraint): New constraint for
        ISA 3.0 vector d-form support.
        * config/rs6000/rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Use
        -mpower9-dform-scalar instead of -mpower9-dform.  Add note not to
        include -mpower9-dform-vector until we switch over to LRA.
        (POWERPC_MASKS): Add -mlra. Split -mpower9-dform into two.
        switches, -mpower9-dform-scalar and -mpower9-dform-vector.
        * config/rs6000/rs6000-protos.h (quad_address_p): Add declaration.
        * doc/invoke.texi (RS/6000 and PowerPC Options): Add documentation
        for -mpower9-dform and -mlra.
        * doc/md.texi (wO constraint): Document wO constraint.

2016-05-11  Alexander Monakov  <amonakov@ispras.ru>

        * genattr.c (main): Change 'rtx' to 'rtx_insn *' in prototypes of
        'insn_latency', 'maximal_insn_latency', 'min_insn_conflict_delay'.
        * genautomata.c (output_internal_insn_code_evaluation): Simplify.
        Move handling of non-insn arguments inline into the sole user:
        (output_trans_func): ...here.
        (output_min_insn_conflict_delay_func): Change 'rtx' to 'rtx_insn *'
        in emitted function prototype.
        (output_internal_insn_latency_func): Ditto.  Simplify.
        (output_internal_maximal_insn_latency_func): Ditto.  Delete
        always-unused argument.
        (output_insn_latency_func): Ditto.
        (output_maximal_insn_latency_func): Ditto.

2016-05-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71055
        * tree-ssa-sccvn.c (vn_reference_lookup_3): When native-interpreting
        sth with precision not equal to access size verify we don't chop
        off bits.

2016-05-11  Richard Biener  <rguenther@suse.de>

        PR debug/71057
        * dwarf2out.c (retry_incomplete_types): Set early_dwarf.
        (dwarf2out_finish): Move retry_incomplete_types call ...
        (dwarf2out_early_finish): ... here.

2016-05-11  Richard Biener  <rguenther@suse.de>

        PR middle-end/71002
        * alias.c (reference_alias_ptr_type): Preserve alias-set zero
        if the langhook insists on it.
        * fold-const.c (make_bit_field_ref): Add arg for the original
        reference and preserve its alias-set.
        (decode_field_reference): Take exp by reference and adjust it
        to the original memory reference.
        (optimize_bit_field_compare): Adjust callers.
        (fold_truth_andor_1): Likewise.
        * gimplify.c (gimplify_expr): Adjust in-SSA form test.

2016-05-11  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR middle-end/70807
        * cfgrtl.h (delete_insn_and_edges): Now return bool.
        * cfgrtl.c (delete_insn_and_edges): Likewise.
        * config/i386/i386.c (convert_scalars_to_vector): Remove
        redundant code.
        * cse.c (cse_insn): Compute cse_cfg_altered.
        (delete_trivially_dead_insns): Likewise.
        (cse_cc_succs): Likewise.
        (rest_of_handle_cse): Free dominance info if required.
        (rest_of_handle_cse2): Likewise.
        (rest_of_handle_cse_after_global_opts): Likewise.

2016-05-11  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (is_complex_IBM_long_double,
        abi_v4_pass_in_fpr): New functions.
        (rs6000_function_arg_boundary): Exclude complex IBM long double
        from 64-bit alignment when ABI_V4.
        (rs6000_function_arg, rs6000_function_arg_advance_1,
        rs6000_gimplify_va_arg): Use abi_v4_pass_in_fpr.

2016-05-10  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/71028
        * cfgcleanup.c (try_optimize_cfg): Do not flip a conditional
        jump with just a return in the fallthrough block if the branch
        block contains just a return as well.

2016-05-10  Marc Glisse  <marc.glisse@inria.fr>

        * fold-const.c (fold_binary_loc) [(X ^ Y) & Y]: Remove and merge with...
        * match.pd ((X & Y) ^ Y): ... this.
        ((X & Y) & Y, (X | Y) | Y, (X ^ Y) ^ Y, (X & Y) & (X & Z), (X | Y)
        | (X | Z), (X ^ Y) ^ (X ^ Z)): New transformations.

2016-05-10  David Malcolm  <dmalcolm@redhat.com>

        * read-md.c (require_char_ws): New function.
        (read_string): Simplify using require_char_ws.
        (handle_constants): Likewise.
        (handle_enum): Likewise.
        (handle_file): Likewise.
        * read-md.h (require_char_ws): New declaration.
        * read-rtl.c (read_conditions): Simplify using require_char_ws.
        (read_mapping): Likewise.
        (read_rtx_code): Likewise.
        (read_nested_rtx): Likewise.

2016-05-10  James Norris  <jnorris@codesourcery.com>

        * config/rs6000/sysv4.h (CRTOFFLOADBEGIN): Define. Add crtoffloadbegin.o
        if offloading is enabled and -fopenacc or -fopenmp is specified.
        (CRTOFFLOADEND): Likewise.
        (STARTFILE_LINUX_SPEC): Add CRTOFFLOADBEGIN.
        (ENDFILE_LINUX_SPEC): Add CRTOFFLOADEND.

2016-05-10  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (legitimize_pic_address): Merge 64-bit and 32-bit
        gotoff_operand code paths.  Use copy_to_suggested_regs and
        expand_simple_binop where appropriate.  Cleanup.

2016-05-10  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR target/70799
        * config/i386/i386.c (dimode_scalar_to_vector_candidate_p): Allow
        integer constants.
        (dimode_scalar_chain::vector_const_cost): New.
        (dimode_scalar_chain::compute_convert_gain): Handle constants.
        (dimode_scalar_chain::convert_op): Likewise.
        (dimode_scalar_chain::convert_insn): Likewise.

2016-05-10  Pierre-Marie de Rodat  <derodat@adacore.com>

        * dwarf2out.c (resolve_args_picking_1): Consider DW_OP_neg as an
        unary operation, not a binary one.

2016-05-10  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR middle-end/70877
        * tree-chkp.c (chkp_add_bounds_to_call_stmt): Handle
        calls with type casted fndecl.

2016-05-10  Ilya Enkovich  <ilya.enkovich@intel.com>

        PR tree-optimization/70786
        * tree-chkp.c (chkp_find_bounds_1): Support WITH_SIZE_EXPR.
        * calls.c (initialize_argument_information): Bind bounds
        with corresponding args passed by reference.

2016-05-10  Jakub Jelinek  <jakub@redhat.com>

        PR target/70927
        * config/i386/sse.md (<sse>_andnot<mode>3<mask_name>),
        *<code><mode>3<mask_name>): For !TARGET_AVX512DQ and EVEX encoding,
        use vp*[dq] instead of v*p[sd] instructions and adjust mode attribute
        accordingly.

2016-05-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/70963
        * config/rs6000/vsx.md (vsx_xvcvdpsxds_scale): Generate correct
        code for a zero scale factor.
        (vsx_xvcvdpuxds_scale): Likewise.

2016-05-10  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c (layout::layout): Call show_ruler
        if show_ruler_p was set on the context.
        (layout::show_ruler): New method.
        * diagnostic.h (struct diagnostic_context): Add field
        "show_ruler_p".

2016-05-10  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71039
        * tree-ssa-phiprop.c: Include tree-ssa-loop.h.
        (chk_uses): New function.
        (propagate_with_phi): Verify we can safely replicate the lhs of an
        aggregate assignment on all incoming edges.

2016-05-10  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/rx/rx-protos.h (is_interrupt_func, is_fast_interrupt_func):
        Forward declare.
        (rx_atomic_sequence): New class.
        * config/rx/rx.c (rx_print_operand): Use symbolic names for PSW bits.
        (is_interrupt_func, is_fast_interrupt_func): Make non-static and
        non-inline.
        (rx_atomic_sequence::rx_atomic_sequence,
        rx_atomic_sequence::~rx_atomic_sequence): New functions.
        * config/rx/rx.md (CTRLREG_PSW, CTRLREG_USP, CTRLREG_FPSW, CTRLREG_CPEN,
        CTRLREG_BPSW, CTRLREG_BPC, CTRLREG_ISP, CTRLREG_FINTV,
        CTRLREG_INTB): New constants.
        (FETCHOP): New code iterator.
        (fethcop_name, fetchop_name2): New iterator code attributes.
        (QIHI): New mode iterator.
        (atomic_exchange<mode>, atomic_exchangesi, xchg_mem<mode>,
        atomic_fetch_<fetchop_name>si, atomic_fetch_nandsi,
        atomic_<fetchop_name>_fetchsi, atomic_nand_fetchsi): New patterns.

2016-05-10  Martin Liska  <mliska@suse.cz>

        * tree-inline.c (remap_dependence_clique): Do not remap
        debugging statements.

2016-05-10  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md ("*vec_cmp<insn_cmp>df_cconly")
        ("*fixuns_truncdfdi2_z13")
        ("*fixuns_trunc<FP:mode><GPR:mode>2_z196")
        ("*fix_truncdfdi2_bfp_z13", "*floatunsdidf2_z13")
        ("*extendsfdf2_z13"): Replace TARGET_Z13 with TARGET_VX.

2016-05-10  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70497
        PR tree-optimization/28367
        * tree-ssa-sccvn.c (vn_nary_build_or_lookup): New function
        split out from ...
        (visit_reference_op_load): ... here.
        (vn_reference_lookup_3): Use it to handle subreg-like accesses
        with simplified BIT_FIELD_REFs.
        * tree-ssa-pre.c (eliminate_insert): Handle inserting BIT_FIELD_REFs.
        * tree-complex.c (extract_component): Handle BIT_FIELD_REFs
        correctly.

2016-05-10  Pierre-Marie de Rodat  <derodat@adacore.com>

        * dwarf2out.c (add_abstract_origin_attribute): Adjust
        documentation comment.  For BLOCK nodes, add a
        DW_AT_abstract_origin attribute that points to the DIE generated
        for the origin BLOCK.
        (gen_lexical_block_die): Call add_abstract_origin_attribute for
        blocks from inlined functions.

2016-05-10  Alan Modra  <amodra@gmail.com>

        PR target/70947
        * config/rs6000/rs6000.c (rs6000_expand_split_stack_prologue): Stop
        regrename modifying insns saving lr before __morestack call.
        * config/rs6000/rs6000.md (split_stack_return): Similarly for
        insns restoring lr after __morestack call.

2016-05-09  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.md (set_got, set_got_labelled, lwp_llwpcb,
        lwp_lwpval<mode>3, lwp_lwpins<mode>3): Remove constraints from
        expanders.
        * config/i386/sse.md (vec_interleave_high<mode>,
        vec_interleave_low<mode>, <avx512>_vpermi2var<mode>3_maskz,
        <avx512>_vpermt2var<mode>3_maskz): Likewise.

2016-05-04  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_reassociation_width): Add
        function for TARGET_SCHED_REASSOCIATION_WIDTH to enable
        parallel reassociation for power8 and forward.

2016-05-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (absneg splitters with general regs): Use
        general_reg_operand predicate.
        (btsq peephole2): Use x86_64_immediate_operand to check if new
        value is suitable for immediate operand.  Generate emitted insn
        using RTL expressions.
        (btcq peephole2): Ditto.
        (btrq peephole2): Ditto.  Generate correct immediate operand
        for AND masking.

2016-05-09  Richard Sandiford  <richard.sandiford@arm.com>

        * cfgexpand.c (expand_debug_expr): Fix address offset for negative
        bitpos.

2016-05-09  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-affine.c (wide_int_constant_multiple_p): Add missing
        pointer dereference.

2016-05-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70985
        * match.pd (BIT_FIELD_REF -> (type)): Disable on GIMPLE when
        op0 isn't a gimple register.

2016-05-09  Prachi Godbole  <prachi.godbole@imgtec.com>

        * config/mips/i6400.md (i6400_fpu_intadd, i6400_fpu_logic)
        (i6400_fpu_div, i6400_fpu_cmp, i6400_fpu_float, i6400_fpu_store)
        (i6400_fpu_long_pipe, i6400_fpu_logic_l, i6400_fpu_float_l)
        (i6400_fpu_mult): New cpu units.
        (i6400_msa_add_d, i6400_msa_int_add, i6400_msa_short_logic3)
        (i6400_msa_short_logic2, i6400_msa_short_logic, i6400_msa_move)
        (i6400_msa_cmp, i6400_msa_short_float2, i6400_msa_div_d)
        (i6400_msa_div_w, i6400_msa_div_h, i6400_msa_div_b)
        (i6400_msa_copy, i6400_msa_branch, i6400_fpu_msa_store)
        (i6400_fpu_msa_load, i6400_fpu_msa_move, i6400_msa_long_logic1)
        (i6400_msa_long_logic2, i6400_msa_mult, i6400_msa_long_float2)
        (i6400_msa_long_float4, i6400_msa_long_float5)
        (i6400_msa_long_float8, i6400_msa_fdiv_df)
        (i6400_msa_fdiv_sf): New reservations.
        * config/mips/p5600.md (p5600_fpu_intadd, p5600_fpu_cmp)
        (p5600_fpu_float, p5600_fpu_logic_a, p5600_fpu_logic_b)
        (p5600_fpu_div, p5600_fpu_logic, p5600_fpu_float_a)
        (p5600_fpu_float_b, p5600_fpu_float_c, p5600_fpu_float_d)
        (p5600_fpu_mult, p5600_fpu_fdiv, p5600_fpu_load): New cpu units.
        (msa_short_int_add, msa_short_logic, msa_short_logic_move_v)
        (msa_short_cmp, msa_short_float2, msa_short_logic3)
        (msa_short_store4, msa_long_load, msa_short_store)
        (msa_long_logic, msa_long_float2, msa_long_float4)
        (msa_long_float5, msa_long_float8, msa_long_mult)
        (msa_long_fdiv, msa_long_div): New reservations.

2016-05-09  Robert Suchanek  <robert.suchanek@imgtec.com>
            Sameera Deshpande  <sameera.deshpande@imgtec.com>
            Matthew Fortune  <matthew.fortune@imgtec.com>
            Graham Stott  <graham.stott@imgtec.com>
            Chao-ying Fu  <chao-ying.fu@imgtec.com>

        * config.gcc: Add MSA header file for mips*-*-* target.
        * config/mips/constraints.md (YI, YC, YZ, Unv5, Uuv5, Usv5, Uuv6)
        (Ubv8i, Urv8):  New constraints.
        * config/mips/mips-ftypes.def: Add function types for MSA
        builtins.
        * config/mips/mips-modes.def (V16QI, V8HI, V4SI, V2DI, V4SF)
        (V2DF, V32QI, V16HI, V8SI, V4DI, V8SF, V4DF): New modes.
        * config/mips/mips-msa.md: New file.
        * config/mips/mips-protos.h
        (mips_split_128bit_const_insns): New prototype.
        (mips_msa_idiv_insns): Likewise.
        (mips_split_128bit_move): Likewise.
        (mips_split_128bit_move_p): Likewise.
        (mips_split_msa_copy_d): Likewise.
        (mips_split_msa_insert_d): Likewise.
        (mips_split_msa_fill_d): Likewise.
        (mips_expand_msa_branch): Likewise.
        (mips_const_vector_same_val_p): Likewise.
        (mips_const_vector_same_bytes_p): Likewise.
        (mips_const_vector_same_int_p): Likewise.
        (mips_const_vector_shuffle_set_p): Likewise.
        (mips_const_vector_bitimm_set_p): Likewise.
        (mips_const_vector_bitimm_clr_p): Likewise.
        (mips_msa_vec_parallel_const_half): Likewise.
        (mips_msa_output_division): Likewise.
        (mips_ldst_scaled_shift): Likewise.
        (mips_expand_vec_cond_expr): Likewise.
        * config/mips/mips.c (enum mips_builtin_type): Add
        MIPS_BUILTIN_MSA_TEST_BRANCH.
        (mips_gen_const_int_vector_shuffle): New prototype.
        (mips_const_vector_bitimm_set_p): New function.
        (mips_const_vector_bitimm_clr_p): Likewise.
        (mips_const_vector_same_val_p): Likewise.
        (mips_const_vector_same_bytes_p): Likewise.
        (mips_const_vector_same_int_p): Likewise.
        (mips_const_vector_shuffle_set_p): Likewise.
        (mips_symbol_insns): Forbid loading symbols via immediate for
        MSA.
        (mips_valid_offset_p): Limit offset to 10-bit for MSA loads and
        stores.
        (mips_valid_lo_sum_p): Forbid loadings symbols via %lo(base) for
        MSA.
        (mips_lx_address_p): Add support load indexed address for MSA.
        (mips_address_insns): Add calculation of instructions needed for
        stores and loads for MSA.
        (mips_const_insns): Move CONST_DOUBLE below CONST_VECTOR.  Handle
        CONST_VECTOR for MSA and let it fall through.
        (mips_ldst_scaled_shift): New function.
        (mips_subword_at_byte): Likewise.
        (mips_msa_idiv_insns): Likewise.
        (mips_legitimize_move): Validate MSA moves.
        (mips_rtx_costs): Add UNGE, UNGT, UNLE, UNLT cases.  Add
        calculation of costs for MSA division.
        (mips_split_move_p): Check if MSA moves need splitting.
        (mips_split_move): Split MSA moves if necessary.
        (mips_split_128bit_move_p): New function.
        (mips_split_128bit_move): Likewise.
        (mips_split_msa_copy_d): Likewise.
        (mips_split_msa_insert_d): Likewise.
        (mips_split_msa_fill_d): Likewise.
        (mips_output_move): Handle MSA moves.
        (mips_expand_msa_branch): New function.
        (mips_print_operand): Add 'E', 'B', 'w', 'v' and 'V' modifiers.
        Reinstate 'y' modifier.
        (mips_file_start): Add MSA .gnu_attribute.
        (mips_hard_regno_mode_ok_p): Allow TImode and 128-bit vectors in
        FPRs.
        (mips_hard_regno_nregs): Always return 1 for MSA supported mode.
        (mips_class_max_nregs): Add register size for MSA supported mode.
        (mips_cannot_change_mode_class): Allow conversion between MSA
        vector modes and TImode.
        (mips_mode_ok_for_mov_fmt_p): Allow MSA to use move.v
        instruction.
        (mips_secondary_reload_class): Force MSA loads/stores via memory.
        (mips_preferred_simd_mode): Add preffered modes for MSA.
        (mips_vector_mode_supported_p): Add MSA supported modes.
        (mips_autovectorize_vector_sizes): New function.
        (mips_msa_output_division): Likewise.
        (MSA_BUILTIN, MIPS_BUILTIN_DIRECT_NO_TARGET)
        (MSA_NO_TARGET_BUILTIN, MSA_BUILTIN_TEST_BRANCH): New macros.
        (CODE_FOR_msa_adds_s_b, CODE_FOR_msa_adds_s_h)
        (CODE_FOR_msa_adds_s_w, CODE_FOR_msa_adds_s_d)
        (CODE_FOR_msa_adds_u_b, CODE_FOR_msa_adds_u_h)
        (CODE_FOR_msa_adds_u_w, CODE_FOR_msa_adds_u_du
        (CODE_FOR_msa_addv_b, CODE_FOR_msa_addv_h, CODE_FOR_msa_addv_w)
        (CODE_FOR_msa_addv_d, CODE_FOR_msa_and_v, CODE_FOR_msa_bmnz_v)
        (CODE_FOR_msa_bmnzi_b, CODE_FOR_msa_bmz_v, CODE_FOR_msa_bmzi_b)
        (CODE_FOR_msa_bnz_v, CODE_FOR_msa_bz_v, CODE_FOR_msa_bsel_v)
        (CODE_FOR_msa_bseli_b, CODE_FOR_msa_ceqi_h, CODE_FOR_msa_ceqi_w)
        (CODE_FOR_msa_ceqi_d, CODE_FOR_msa_clti_s_b)
        (CODE_FOR_msa_clti_s_h, CODE_FOR_msa_clti_s_w)
        (CODE_FOR_msa_clti_s_d, CODE_FOR_msa_clti_u_b)
        (CODE_FOR_msa_clti_u_h, CODE_FOR_msa_clti_u_w)
        (CODE_FOR_msa_clti_u_d, CODE_FOR_msa_clei_s_b)
        (CODE_FOR_msa_clei_s_h, CODE_FOR_msa_clei_s_w)
        (CODE_FOR_msa_clei_s_d, CODE_FOR_msa_clei_u_b)
        (CODE_FOR_msa_clei_u_h, CODE_FOR_msa_clei_u_w)
        (CODE_FOR_msa_clei_u_d, CODE_FOR_msa_div_s_b)
        (CODE_FOR_msa_div_s_h, CODE_FOR_msa_div_s_w)
        (CODE_FOR_msa_div_s_d, CODE_FOR_msa_div_u_b)
        (CODE_FOR_msa_div_u_h, CODE_FOR_msa_div_u_w)
        (CODE_FOR_msa_div_u_d, CODE_FOR_msa_fadd_w, CODE_FOR_msa_fadd_d)
        (CODE_FOR_msa_fexdo_w, CODE_FOR_msa_ftrunc_s_w)
        (CODE_FOR_msa_ftrunc_s_d, CODE_FOR_msa_ftrunc_u_w)
        (CODE_FOR_msa_ftrunc_u_d, CODE_FOR_msa_ffint_s_w)
        (CODE_FOR_msa_ffint_s_d, CODE_FOR_msa_ffint_u_w)
        (CODE_FOR_msa_ffint_u_d, CODE_FOR_msa_fsub_w)
        (CODE_FOR_msa_fsub_d, CODE_FOR_msa_fmsub_d, CODE_FOR_msa_fmadd_w)
        (CODE_FOR_msa_fmadd_d, CODE_FOR_msa_fmsub_w, CODE_FOR_msa_fmul_w)
        (CODE_FOR_msa_fmul_d, CODE_FOR_msa_fdiv_w, CODE_FOR_msa_fdiv_d)
        (CODE_FOR_msa_fmax_w, CODE_FOR_msa_fmax_d, CODE_FOR_msa_fmax_a_w)
        (CODE_FOR_msa_fmax_a_d, CODE_FOR_msa_fmin_w, CODE_FOR_msa_fmin_d)
        (CODE_FOR_msa_fmin_a_w, CODE_FOR_msa_fmin_a_d)
        (CODE_FOR_msa_fsqrt_w, CODE_FOR_msa_fsqrt_d)
        (CODE_FOR_msa_max_s_b, CODE_FOR_msa_max_s_h)
        (CODE_FOR_msa_max_s_w, CODE_FOR_msa_max_s_d)
        (CODE_FOR_msa_max_u_b, CODE_FOR_msa_max_u_h)
        (CODE_FOR_msa_max_u_w, CODE_FOR_msa_max_u_d)
        (CODE_FOR_msa_min_s_b, CODE_FOR_msa_min_s_h)
        (CODE_FOR_msa_min_s_w, CODE_FOR_msa_min_s_d)
        (CODE_FOR_msa_min_u_b, CODE_FOR_msa_min_u_h)
        (CODE_FOR_msa_min_u_w, CODE_FOR_msa_min_u_d)
        (CODE_FOR_msa_mod_s_b, CODE_FOR_msa_mod_s_h)
        (CODE_FOR_msa_mod_s_w, CODE_FOR_msa_mod_s_d)
        (CODE_FOR_msa_mod_u_b, CODE_FOR_msa_mod_u_h)
        (CODE_FOR_msa_mod_u_w, CODE_FOR_msa_mod_u_d)
        (CODE_FOR_msa_mod_s_b, CODE_FOR_msa_mod_s_h)
        (CODE_FOR_msa_mod_s_w, CODE_FOR_msa_mod_s_d)
        (CODE_FOR_msa_mod_u_b, CODE_FOR_msa_mod_u_h)
        (CODE_FOR_msa_mod_u_w, CODE_FOR_msa_mod_u_d)
        (CODE_FOR_msa_mulv_b, CODE_FOR_msa_mulv_h, CODE_FOR_msa_mulv_w)
        (CODE_FOR_msa_mulv_d, CODE_FOR_msa_nlzc_b, CODE_FOR_msa_nlzc_h)
        (CODE_FOR_msa_nlzc_w, CODE_FOR_msa_nlzc_d, CODE_FOR_msa_nor_v)
        (CODE_FOR_msa_or_v, CODE_FOR_msa_ori_b, CODE_FOR_msa_nori_b)
        (CODE_FOR_msa_pcnt_b, CODE_FOR_msa_pcnt_h, CODE_FOR_msa_pcnt_w)
        (CODE_FOR_msa_pcnt_d, CODE_FOR_msa_xor_v, CODE_FOR_msa_xori_b)
        (CODE_FOR_msa_sll_b, CODE_FOR_msa_sll_h, CODE_FOR_msa_sll_w)
        (CODE_FOR_msa_sll_d, CODE_FOR_msa_slli_b, CODE_FOR_msa_slli_h)
        (CODE_FOR_msa_slli_w, CODE_FOR_msa_slli_d, CODE_FOR_msa_sra_b)
        (CODE_FOR_msa_sra_h, CODE_FOR_msa_sra_w, CODE_FOR_msa_sra_d)
        (CODE_FOR_msa_srai_b, CODE_FOR_msa_srai_h, CODE_FOR_msa_srai_w)
        (CODE_FOR_msa_srai_d, CODE_FOR_msa_srl_b, CODE_FOR_msa_srl_h)
        (CODE_FOR_msa_srl_w, CODE_FOR_msa_srl_d, CODE_FOR_msa_srli_b)
        (CODE_FOR_msa_srli_h, CODE_FOR_msa_srli_w, CODE_FOR_msa_srli_d)
        (CODE_FOR_msa_subv_b, CODE_FOR_msa_subv_h, CODE_FOR_msa_subv_w)
        (CODE_FOR_msa_subv_d, CODE_FOR_msa_subvi_b, CODE_FOR_msa_subvi_h)
        (CODE_FOR_msa_subvi_w, CODE_FOR_msa_subvi_d, CODE_FOR_msa_move_v)
        (CODE_FOR_msa_vshf_b, CODE_FOR_msa_vshf_h, CODE_FOR_msa_vshf_w)
        (CODE_FOR_msa_vshf_d, CODE_FOR_msa_ilvod_d, CODE_FOR_msa_ilvev_d)
        (CODE_FOR_msa_pckod_d, CODE_FOR_msa_pckdev_d, CODE_FOR_msa_ldi_b)
        (CODE_FOR_msa_ldi_hi, CODE_FOR_msa_ldi_w)
        (CODE_FOR_msa_ldi_d): New code_aliasing macros.
        (mips_builtins): Add MSA sll_b, sll_h, sll_w, sll_d, slli_b,
        slli_h, slli_w, slli_d, sra_b, sra_h, sra_w, sra_d, srai_b,
        srai_h, srai_w, srai_d, srar_b, srar_h, srar_w, srar_d, srari_b,
        srari_h, srari_w, srari_d, srl_b, srl_h, srl_w, srl_d, srli_b,
        srli_h, srli_w, srli_d, srlr_b, srlr_h, srlr_w, srlr_d, srlri_b,
        srlri_h, srlri_w, srlri_d, bclr_b, bclr_h, bclr_w, bclr_d,
        bclri_b, bclri_h, bclri_w, bclri_d, bset_b, bset_h, bset_w,
        bset_d, bseti_b, bseti_h, bseti_w, bseti_d, bneg_b, bneg_h,
        bneg_w, bneg_d, bnegi_b, bnegi_h, bnegi_w, bnegi_d, binsl_b,
        binsl_h, binsl_w, binsl_d, binsli_b, binsli_h, binsli_w,
        binsli_d, binsr_b, binsr_h, binsr_w, binsr_d, binsri_b, binsri_h,
        binsri_w, binsri_d, addv_b, addv_h, addv_w, addv_d, addvi_b,
        addvi_h, addvi_w, addvi_d, subv_b, subv_h, subv_w, subv_d,
        subvi_b, subvi_h, subvi_w, subvi_d, max_s_b, max_s_h, max_s_w,
        max_s_d, maxi_s_b, maxi_s_h, maxi_s_w, maxi_s_d, max_u_b,
        max_u_h, max_u_w, max_u_d, maxi_u_b, maxi_u_h, maxi_u_w,
        maxi_u_d, min_s_b, min_s_h, min_s_w, min_s_d, mini_s_b, mini_s_h,
        mini_s_w, mini_s_d, min_u_b, min_u_h, min_u_w, min_u_d, mini_u_b,
        mini_u_h, mini_u_w, mini_u_d, max_a_b, max_a_h, max_a_w, max_a_d,
        min_a_b, min_a_h, min_a_w, min_a_d, ceq_b, ceq_h, ceq_w, ceq_d,
        ceqi_b, ceqi_h, ceqi_w, ceqi_d, clt_s_b, clt_s_h, clt_s_w,
        clt_s_d, clti_s_b, clti_s_h, clti_s_w, clti_s_d, clt_u_b,
        clt_u_h, clt_u_w, clt_u_d, clti_u_b, clti_u_h, clti_u_w,
        clti_u_d, cle_s_b, cle_s_h, cle_s_w, cle_s_d, clei_s_b, clei_s_h,
        clei_s_w, clei_s_d, cle_u_b, cle_u_h, cle_u_w, cle_u_d, clei_u_b,
        clei_u_h, clei_u_w, clei_u_d, ld_b, ld_h, ld_w, ld_d, st_b, st_h,
        st_w, st_d, sat_s_b, sat_s_h, sat_s_w, sat_s_d, sat_u_b, sat_u_h,
        sat_u_w, sat_u_d, add_a_b, add_a_h, add_a_w, add_a_d, adds_a_b,
        adds_a_h, adds_a_w, adds_a_d, adds_s_b, adds_s_h, adds_s_w,
        adds_s_d, adds_u_b, adds_u_h, adds_u_w, adds_u_d, ave_s_b,
        ave_s_h, ave_s_w, ave_s_d, ave_u_b, ave_u_h, ave_u_w, ave_u_d,
        aver_s_b, aver_s_h, aver_s_w, aver_s_d, aver_u_b, aver_u_h,
        aver_u_w, aver_u_d, subs_s_b, subs_s_h, subs_s_w, subs_s_d,
        subs_u_b, subs_u_h, subs_u_w, subs_u_d, subsuu_s_b, subsuu_s_h,
        subsuu_s_w, subsuu_s_d, subsus_u_b, subsus_u_h, subsus_u_w,
        subsus_u_d, asub_s_b, asub_s_h, asub_s_w, asub_s_d, asub_u_b,
        asub_u_h, asub_u_w, asub_u_d, mulv_b, mulv_h, mulv_w, mulv_d,
        maddv_b, maddv_h, maddv_w, maddv_d, msubv_b, msubv_h, msubv_w,
        msubv_d, div_s_b, div_s_h, div_s_w, div_s_d, div_u_b, div_u_h,
        div_u_w, div_u_d, hadd_s_h, hadd_s_w, hadd_s_d, hadd_u_h,
        hadd_u_w, hadd_u_d, hsub_s_h, hsub_s_w, hsub_s_d, hsub_u_h,
        hsub_u_w, hsub_u_d, mod_s_b, mod_s_h, mod_s_w, mod_s_d, mod_u_b,
        mod_u_h, mod_u_w, mod_u_d, dotp_s_h, dotp_s_w, dotp_s_d,
        dotp_u_h, dotp_u_w, dotp_u_d, dpadd_s_h, dpadd_s_w, dpadd_s_d,
        dpadd_u_h, dpadd_u_w, dpadd_u_d, dpsub_s_h, dpsub_s_w, dpsub_s_d,
        dpsub_u_h, dpsub_u_w, dpsub_u_d, sld_b, sld_h, sld_w, sld_d,
        sldi_b, sldi_h, sldi_w, sldi_d, splat_b, splat_h, splat_w,
        splat_d, splati_b, splati_h, splati_w, splati_d, pckev_b,
        pckev_h, pckev_w, pckev_d, pckod_b, pckod_h, pckod_w, pckod_d,
        ilvl_b, ilvl_h, ilvl_w, ilvl_d, ilvr_b, ilvr_h, ilvr_w, ilvr_d,
        ilvev_b, ilvev_h, ilvev_w, ilvev_d, ilvod_b, ilvod_h, ilvod_w,
        ilvod_d, vshf_b, vshf_h, vshf_w, vshf_d, and_v, andi_b, or_v,
        ori_b, nor_v, nori_b, xor_v, xori_b, bmnz_v, bmnzi_b, bmz_v,
        bmzi_b, bsel_v, bseli_b, shf_b, shf_h, shf_w, bnz_v, bz_v,
        fill_b, fill_h, fill_w, fill_d, pcnt_b, pcnt_h, pcnt_w,
        pcnt_d, nloc_b, nloc_h, nloc_w, nloc_d, nlzc_b, nlzc_h, nlzc_w,
        nlzc_d, copy_s_b, copy_s_h, copy_s_w, copy_s_d, copy_u_b,
        copy_u_h, copy_u_w, copy_u_d, insert_b, insert_h, insert_w,
        insert_d, insve_b, insve_h, insve_w, insve_d, bnz_b, bnz_h,
        bnz_w, bnz_d, bz_b, bz_h, bz_w, bz_d, ldi_b, ldi_h, ldi_w, ldi_d,
        fcaf_w, fcaf_d, fcor_w, fcor_d, fcun_w, fcun_d, fcune_w, fcune_d,
        fcueq_w, fcueq_d, fceq_w, fceq_d, fcne_w, fcne_d, fclt_w, fclt_d,
        fcult_w, fcult_d, fcle_w, fcle_d, fcule_w, fcule_d, fsaf_w,
        fsaf_d, fsor_w, fsor_d, fsun_w, fsun_d, fsune_w, fsune_d,
        fsueq_w, fsueq_d, fseq_w, fseq_d, fsne_w, fsne_d, fslt_w,
        fslt_d, fsult_w, fsult_d, fsle_w, fsle_d, fsule_w, fsule_d,
        fadd_w, fadd_d, fsub_w, fsub_d, fmul_w, fmul_d, fdiv_w, fdiv_d,
        fmadd_w, fmadd_d, fmsub_w, fmsub_d, fexp2_w, fexp2_d, fexdo_h,
        fexdo_w, ftq_h, ftq_w, fmin_w, fmin_d, fmin_a_w, fmin_a_d,
        fmax_w, fmax_d, fmax_a_w, fmax_a_d, mul_q_h, mul_q_w, mulr_q_h,
        mulr_q_w, madd_q_h, madd_q_w, maddr_q_h, maddr_q_w, msub_q_h,
        msub_q_w, msubr_q_h, msubr_q_w, fclass_w, fclass_d, fsqrt_w,
        fsqrt_d, frcp_w, frcp_d, frint_w, frint_d, frsqrt_w, frsqrt_d,
        flog2_w, flog2_d, fexupl_w, fexupl_d, fexupr_w, fexupr_d, ffql_w,
        ffql_d, ffqr_w, ffqr_d, ftint_s_w, ftint_s_d, ftint_u_w,
        ftint_u_d, ftrunc_s_w, ftrunc_s_d, ftrunc_u_w, ftrunc_u_d,
        ffint_s_w, ffint_s_d, ffint_u_w, ffint_u_d, ctcmsa, cfcmsa,
        move_v builtins.
        (mips_get_builtin_decl_index): New array.
        (MIPS_ATYPE_QI, MIPS_ATYPE_HI, MIPS_ATYPE_V2DI, MIPS_ATYPE_V4SI)
        (MIPS_ATYPE_V8HI, MIPS_ATYPE_V16QI, MIPS_ATYPE_V2DF)
        (MIPS_ATYPE_V4SF, MIPS_ATYPE_UV2DI, MIPS_ATYPE_UV4SI)
        (MIPS_ATYPE_UV8HI, MIPS_ATYPE_UV16QI): New.
        (mips_init_builtins): Initialize mips_get_builtin_decl_index
        array.
        (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION): Define target
        hook.
        (mips_expand_builtin_insn): Prepare operands for
        CODE_FOR_msa_addvi_b, CODE_FOR_msa_addvi_h, CODE_FOR_msa_addvi_w,
        CODE_FOR_msa_addvi_d, CODE_FOR_msa_clti_u_b,
        CODE_FOR_msa_clti_u_h, CODE_FOR_msa_clti_u_w,
        CODE_FOR_msa_clti_u_d, CODE_FOR_msa_clei_u_b,
        CODE_FOR_msa_clei_u_h, CODE_FOR_msa_clei_u_w,
        CODE_FOR_msa_clei_u_d, CODE_FOR_msa_maxi_u_b,
        CODE_FOR_msa_maxi_u_h, CODE_FOR_msa_maxi_u_w,
        CODE_FOR_msa_maxi_u_d, CODE_FOR_msa_mini_u_b,
        CODE_FOR_msa_mini_u_h, CODE_FOR_msa_mini_u_w,
        CODE_FOR_msa_mini_u_d, CODE_FOR_msa_subvi_b,
        CODE_FOR_msa_subvi_h, CODE_FOR_msa_subvi_w, CODE_FOR_msa_subvi_d,
        CODE_FOR_msa_ceqi_b, CODE_FOR_msa_ceqi_h, CODE_FOR_msa_ceqi_w,
        CODE_FOR_msa_ceqi_d, CODE_FOR_msa_clti_s_b,
        CODE_FOR_msa_clti_s_h, CODE_FOR_msa_clti_s_w,
        CODE_FOR_msa_clti_s_d, CODE_FOR_msa_clei_s_b,
        CODE_FOR_msa_clei_s_h, CODE_FOR_msa_clei_s_w,
        CODE_FOR_msa_clei_s_d, CODE_FOR_msa_maxi_s_b,
        CODE_FOR_msa_maxi_s_h, CODE_FOR_msa_maxi_s_w,
        CODE_FOR_msa_maxi_s_d, CODE_FOR_msa_mini_s_b,
        CODE_FOR_msa_mini_s_h, CODE_FOR_msa_mini_s_w,
        CODE_FOR_msa_mini_s_d, CODE_FOR_msa_andi_b, CODE_FOR_msa_ori_b,
        CODE_FOR_msa_nori_b, CODE_FOR_msa_xori_b, CODE_FOR_msa_bmzi_b,
        CODE_FOR_msa_bmnzi_b, CODE_FOR_msa_bseli_b, CODE_FOR_msa_fill_b,
        CODE_FOR_msa_fill_h, CODE_FOR_msa_fill_w, CODE_FOR_msa_fill_d,
        CODE_FOR_msa_ilvl_b, CODE_FOR_msa_ilvl_h, CODE_FOR_msa_ilvl_w,
        CODE_FOR_msa_ilvl_d, CODE_FOR_msa_ilvr_b, CODE_FOR_msa_ilvr_h,
        CODE_FOR_msa_ilvr_w, CODE_FOR_msa_ilvr_d, CODE_FOR_msa_ilvev_b,
        CODE_FOR_msa_ilvev_h, CODE_FOR_msa_ilvev_w, CODE_FOR_msa_ilvod_b,
        CODE_FOR_msa_ilvod_h, CODE_FOR_msa_ilvod_w, CODE_FOR_msa_pckev_b,
        CODE_FOR_msa_pckev_h, CODE_FOR_msa_pckev_w, CODE_FOR_msa_pckod_b,
        CODE_FOR_msa_pckod_h, CODE_FOR_msa_pckod_w, CODE_FOR_msa_slli_b,
        CODE_FOR_msa_slli_h, CODE_FOR_msa_slli_w, CODE_FOR_msa_slli_d,
        CODE_FOR_msa_srai_b, CODE_FOR_msa_srai_h, CODE_FOR_msa_srai_w,
        CODE_FOR_msa_srai_d, CODE_FOR_msa_srli_b, CODE_FOR_msa_srli_h,
        CODE_FOR_msa_srli_w, CODE_FOR_msa_srli_d, CODE_FOR_msa_insert_b,
        CODE_FOR_msa_insert_h, CODE_FOR_msa_insert_w,
        CODE_FOR_msa_insert_d, CODE_FOR_msa_insve_b,
        CODE_FOR_msa_insve_h, CODE_FOR_msa_insve_w, CODE_FOR_msa_insve_d,
        CODE_FOR_msa_shf_b, CODE_FOR_msa_shf_h, CODE_FOR_msa_shf_w,
        CODE_FOR_msa_shf_w_f, CODE_FOR_msa_vshf_b, CODE_FOR_msa_vshf_h,
        CODE_FOR_msa_vshf_w, CODE_FOR_msa_vshf_d.
        (mips_expand_builtin): Add case for MIPS_BULTIN_MSA_TEST_BRANCH.
        (mips_set_compression_mode): Disallow MSA with MIPS16 code.
        (mips_option_override): -mmsa requires -mfp64 and -mhard-float.
        These are set implicitly and an error is reported if overridden.
        (mips_expand_builtin_msa_test_branch): New function.
        (mips_expand_msa_shuffle): Likewise.
        (MAX_VECT_LEN): Increase maximum length of a vector to 16 bytes.
        (TARGET_SCHED_REASSOCIATION_WIDTH): Define target hook.
        (TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SIZES): Likewise.
        (mips_expand_vec_unpack): Add support for MSA.
        (mips_expand_vector_init): Likewise.
        (mips_expand_vi_constant): Use CONST0_RTX (element_mode)
        instead of const0_rtx.
        (mips_msa_vec_parallel_const_half): New function.
        (mips_gen_const_int_vector): Likewise.
        (mips_gen_const_int_vector_shuffle): Likewise.
        (mips_expand_msa_cmp): Likewise.
        (mips_expand_vec_cond_expr): Likewise.
        * config/mips/mips.h
        (TARGET_CPU_CPP_BUILTINS): Add __mips_msa and __mips_msa_width.
        (OPTION_DEFAULT_SPECS): Ignore --with-fp-32 if -mmsa is
        specified.
        (ASM_SPEC): Pass mmsa and mno-msa to the assembler.
        (ISA_HAS_MSA): New macro.
        (UNITS_PER_MSA_REG): Likewise.
        (BITS_PER_MSA_REG): Likewise.
        (BIGGEST_ALIGNMENT): Redefine using ISA_HAS_MSA.
        (MSA_REG_FIRST): New macro.
        (MSA_REG_LAST): Likewise.
        (MSA_REG_NUM): Likewise.
        (MSA_REG_P): Likewise.
        (MSA_REG_RTX_P): Likewise.
        (MSA_SUPPORTED_MODE_P): Likewise.
        (HARD_REGNO_CALL_PART_CLOBBERED): Redefine using TARGET_MSA.
        (ADDITIONAL_REGISTER_NAMES): Add named registers $w0-$w31.
        * config/mips/mips.md: Include mips-msa.md.
        (alu_type): Add simd_add.
        (mode): Add V2DI, V4SI, V8HI, V16QI, V2DF, V4SF.
        (type): Add simd_div, simd_fclass, simd_flog2, simd_fadd,
        simd_fcvt, simd_fmul, simd_fmadd, simd_fdiv, simd_bitins,
        simd_bitmov, simd_insert, simd_sld, simd_mul, simd_fcmp,
        simd_fexp2, simd_int_arith, simd_bit, simd_shift, simd_splat,
        simd_fill, simd_permute, simd_shf, simd_sat, simd_pcnt,
        simd_copy, simd_branch, simd_cmsa, simd_fminmax, simd_logic,
        simd_move, simd_load, simd_store.  Choose "multi" for moves
        for "qword_mode".
        (qword_mode): New attribute.
        (insn_count): Add instruction count for quad moves.
        Increase the count for MIPS SIMD division.
        (UNITMODE): Add UNITMODEs for vector types.
        (addsub): New code iterator.
        * config/mips/mips.opt (mmsa): New option.
        * config/mips/msa.h: New file.
        * config/mips/mti-elf.h: Don't infer -mfpxx if -mmsa is
        specified.
        * config/mips/mti-linux.h: Likewise.
        * config/mips/predicates.md
        (const_msa_branch_operand): New constraint.
        (const_uimm3_operand): Likewise.
        (const_uimm4_operand): Likewise.
        (const_uimm5_operand): Likewise.
        (const_uimm8_operand): Likewise.
        (const_imm5_operand): Likewise.
        (aq10b_operand): Likewise.
        (aq10h_operand): Likewise.
        (aq10w_operand): Likewise.
        (aq10d_operand): Likewise.
        (const_m1_operand): Likewise.
        (reg_or_m1_operand): Likewise.
        (const_exp_2_operand): Likewise.
        (const_exp_4_operand): Likewise.
        (const_exp_8_operand): Likewise.
        (const_exp_16_operand): Likewise.
        (const_vector_same_val_operand): Likewise.
        (const_vector_same_simm5_operand): Likewise.
        (const_vector_same_uimm5_operand): Likewise.
        (const_vector_same_uimm6_operand): Likewise.
        (const_vector_same_uimm8_operand): Likewise.
        (par_const_vector_shf_set_operand): Likewise.
        (reg_or_vector_same_val_operand): Likewise.
        (reg_or_vector_same_simm5_operand): Likewise.
        (reg_or_vector_same_uimm6_operand): Likewise.
        * doc/extend.texi (MIPS SIMD Architecture Functions): New
        section.
        * doc/invoke.texi (-mmsa): Document new option.

2016-05-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (enable_vtable_verify): Handle --enable-vtable-verify.
        * configure: Regenerate.
        * config.in: Regenerate.
        * gcc.c (VTABLE_VERIFICATION_SPEC) [!ENABLE_VTABLE_VERIFY]: Error
        on -fvtable-verify.
        * config/sol2.h [!ENABLE_VTABLE_VERIFY] (STARTFILE_VTV_SPEC): Define.
        (ENDFILE_VTV_SPEC): Define.

2016-05-09  Kaushik Phatak  <kaushik.phatak@kpit.com>

        * config/rl78/rl78.c (rl78_expand_prologue): Save the MDUC related
        registers in all interrupt handlers if necessary.
        (rl78_option_override): Add warning.
        (MUST_SAVE_MDUC_REGISTERS): New macro.
        (rl78_expand_epilogue): Restore the MDUC registers if necessary.
        * config/rl78/rl78.c (check_mduc_usage): New function.
        (mduc_regs): New structure to hold MDUC register data.
        * config/rl78/rl78.md (is_g13_muldiv_insn): New attribute.
        (mulsi3_g13): Add is_g13_muldiv_insn attribute.
        (udivmodsi4_g13): Add is_g13_muldiv_insn attribute.
        (mulhi3_g13): Add is_g13_muldiv_insn attribute.
        * config/rl78/rl78.opt (msave-mduc-in-interrupts): New option.
        * doc/invoke.texi (RL78 Options): Add -msave-mduc-in-interrupts.

2016-05-09  Bin Cheng  <bin.cheng@arm.com>

        * tree-if-conv.c (tree-ssa-loop.h): Include header file.
        (tree-ssa-loop-niter.h): Ditto.
        (idx_within_array_bound, ref_within_array_bound): New functions.
        (ifcvt_memrefs_wont_trap): Check if array ref is within bound.
        Factor out check on writable base object to ...
        (base_object_writable): ... here.

2016-05-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.md (probe_stack): Add modes to set source
        and destination.

2016-05-09  Bernd Schmidt  <bschmidt@redhat.com>

        * regrename.c (base_reg_class_for_rename): New static function.
        (scan_rtx_address, scan_rtx): Use it instead of base_reg_class.

2016-05-08  Jan Hubicka  <hubicka@ucw.cz>

        * cgraph.c (thunk_adjust): Export.
        * cgraphclones.c (cgraph_node::create_clone): Clone thunk info.
        * cgraphunit.c (thunk_adjust): Export.
        (cgraph_node::assemble_thunks_and_aliases): Do not assemble inlined
        thunks.
        * ipa-inline-analyssi.c (compute_inline_parameters): Thunks are
        inlinable.
        * tree-inline.c (expand_call_inline): Expand thunks inline.

2016-05-08  Uros Bizjak  <ubizjak@gmail.com>

        PR target/70998
        * config/i386/sse.md (*sse2_vd_cvtsd2ss): New insn pattern.
        (*sse2_vd_cvtss2sd): Ditto.
        * config/i386/i386.md
        (TARGET_SSE_PARTIAL_REG_DEPENDENCY float_truncate df->sf splitter):
        Generate *sse2_vd_cvtsd2ss pattern.
        (TARGET_SSE_PARTIAL_REG_DEPENDENCY float_extend sf->df splitter):
        Generate *sse2_vd_cvtss2sd pattern.

2016-05-08  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.h (GET_SH_ARG_CLASS): Convert macro into ...
        * config/sh/sh.c (get_sh_arg_class): ... this new function.  Update its
        users.

2016-05-08  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh-protos.h (sh_media_register_for_return): Remove.
        * config/sh/sh.c: Define and declare variables on first use throughout
        the file.
        (current_function_interrupt): Change to bool type.
        (frame_insn): Rename to emit_frame_insn and update users.
        (push_regs): Use bool for 'interrupt_handler' argument.
        (save_schedule_s): Remove.
        (TARGET_ASM_UNALIGNED_DI_OP, TARGET_ASM_ALIGNED_DI_OP): Remove.
        (sh_option_override): Don't nullify targetm.asm_out.aligned_op.di and
        targetm.asm_out.unaligned_op.di.
        (gen_far_branch): Remove redundant forward declaration.
        (sh_media_register_for_return, MAX_SAVED_REGS, save_entry_s, save_entry,
        MAX_TEMPS, save_schedule_ssave_schedule): Remove.
        (sh_set_return_address, sh_function_ok_for_sibcall,
        scavenge_reg): Update comments.
        (sh_builtin_saveregs): Use TRAGET_FPU_ANY condition.
        (sh2a_get_function_vector_number, sh2a_function_vector_p): Use for loop.
        (sh_attr_renesas_p): Remove unnecessary parentheses.
        (branch_dest): Simplify.
        * config/sh/sh.h (sh_args): Remove byref, byref_regs, stack_regs fields.
        Change force_mem, prototype_p, outgoing, renesas_abi fields to bool.
        (CUMULATIVE_ARGS): Change macro to typedef.
        (current_function_interrupt): Change to bool type.
        (sh_arg_class, sh_args, CUMULATIVE_ARGS, current_function_interrupt):
        Surround with __cplusplus ifdef.
        (sh_compare_op0, sh_compare_op1): Remove.
        (EPILOGUE_USES): Use TARGET_FPU_ANY condition.

2016-05-07  Jim Wilson  <jim.wilson@linaro.org>

        * config/arm/arm.md: (arch): Add neon.
        (arch_enabled): Return yes for arch neon when TARGET_NEON.
        * config/arm/vfp.md (movdf_vfp): Add w/G as alternative 3.  Add
        neon_move as type for alt 3.  Add arch attr enabling alt 3 for neon.
        Emit vmov.i64 for alt 3.  Renumber alternatives 3 to 8.  Adjust
        attributes for alt renumbering.  Mark alt 3 as non-predicable.
        (thumb2_movdf_vfp): Likewise.

2016-05-07  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*addqi_1): Add preferred_for_speed attribute
        to disparage alternatives 3 and 4 for TARGET_PARTIAL_REG_STALL targets.
        (*andqi_1): Add preferred_for_speed attribute to disparage
        alternative 2 for TARGET_PARTIAL_REG_STALL targets.
        (*<code>qi_1): Ditto.
        (*one_cmplqi2_1): Add preferred_for_speed attribute to disparage
        alternative 1 for TARGET_PARTIAL_REG_STALL targets.
        (*ashlqi3_1): Ditto.
        (*swap<mode>): Merge from *swap<mode>_1 and *swap<mode>_2 patterns.
        Add preferred_for_size attribute to disparage alternative 0 and
        preferred_for_speed attribute to disparage alternative 1 for
        TARGET_PARTIAL_REG_STALL targets.

2016-05-07  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/70956
        * graphite-scop-detection.c (build_cross_bb_scalars_def): Handle NULL
        def.

2016-05-07  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh-protos.h (sh_cbranch_distance): Declare new function.
        * config/sh/sh.c (sh_cbranch_distance): Implement it.
        * config/sh/sh.md (branch_zero): Remove define_attr.
        (define_delay): Disable delay slot if branch distance is one insn.

2016-05-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (LEAMODE): New mode attribute.
        (plus to LEA splitter): Rewrite splitter using LEAMODE mode attribute.
        (ashift to LEA splitter): Rewrte splitter using SWI mode iterator
        and LEAMODE mode attribute.  Use VOIDmode const_0_to_3_operand as
        operand 2 predicate.
        (*lea<mode>_general_2): Use VOIDmode for const248_operand.
        (*lea<mode>_general_3): Ditto.
        (*lea<mode>_general_4): Use VOIDmode for const_0_to_3_operand.

2016-05-06  Jakub Jelinek  <jakub@redhat.com>

        * genmddump.c (main): Convert argv from char ** to const char **.

2016-05-06  David Malcolm  <dmalcolm@redhat.com>

        * coretypes.h (OVERRIDE): New macro.
        (FINAL): New macro.

2016-05-06  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-coalesce.c (gimple_can_coalesce_p): In the optimized case,
        allow coalescing if the types are compatible.

2016-05-06  David Malcolm  <dmalcolm@redhat.com>

        * pass_manager.h (pass_manager::register_pass_name): New method.
        (pass_manager::get_pass_by_name): New method.
        (pass_manager::create_pass_tab): New method.
        (pass_manager::m_name_to_pass_map): New field.
        * passes.c (name_to_pass_map): Delete global in favor of field
        "m_name_to_pass_map" of pass_manager.
        (register_pass_name): Rename from a function to...
        (pass_manager::register_pass_name): ...this method, updating
        for renaming of global "name_to_pass_map" to field
        "m_name_to_pass_map".
        (create_pass_tab): Rename from a function to...
        (pass_manager::create_pass_tab): ...this method, updating
        for renaming of global "name_to_pass_map" to field.
        (get_pass_by_name): Rename from a function to...
        (pass_manager::get_pass_by_name): ...this method.
        (enable_disable_pass): Convert use of get_pass_by_name to
        a method call, locating the pass_manager singleton.

2016-05-06  David Malcolm  <dmalcolm@redhat.com>

        * genattr-common.c (main): Convert argv from char ** to const char **.
        * genattr.c (main): Likewise.
        * genattrtab.c (main): Likewise.
        * genautomata.c (initiate_automaton_gen): Likewise.
        (main): Likewise.
        * gencodes.c (main): Likewise.
        * genconditions.c (main): Likewise.
        * genconfig.c (main): Likewise.
        * genconstants.c (main): Likewise.
        * genemit.c (main): Likewise.
        * genenums.c (main): Likewise.
        * genextract.c (main): Likewise.
        * genflags.c (main): Likewise.
        * genmddeps.c (main): Likewise.
        * genopinit.c (main): Likewise.
        * genoutput.c (main): Likewise.
        * genpeep.c (main): Likewise.
        * genpreds.c (main): Likewise.
        * genrecog.c (main): Likewise.
        * gensupport.c (init_rtx_reader_args_cb): Likewise.
        (init_rtx_reader_args): Likewise.
        * gensupport.h (init_rtx_reader_args_cb): Likewise.
        (init_rtx_reader_args): Likewise.
        * gentarget-def.c (main): Likewise.
        * read-md.c (read_md_files): Likewise.
        * read-md.h (read_md_files): Likewise.

2016-05-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (int cmove peephole2s): Use general_reg_operand
        instead of register_and_not_any_fp_reg_operand as operand 0 predicate.
        * config/i386/predicates.md (register_and_not_any_fp_reg_operand):
        Remove unused predicate.
        (register_and_not_fp_reg_operand): Ditto.

2016-05-06  Martin Liska  <mliska@suse.cz>

        * tree-if-conv.c (ifcvt_split_critical_edges): Use auto_vec
        instead of vec as the vector is local to the function.

2016-05-06  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (*<code>v8hi3, *<code>v16qi3): Add
        avx512bw alternative.

        * config/i386/sse.md (<mask_codefor>ashr<mode>3<mask_name>): Move
        before the ashr<mode>3 pattern.

        * config/i386/sse.md (*avx2_pmaddwd, *sse2_pmaddwd): Use
        v instead of x in vex or maybe_vex alternatives, use
        maybe_evex instead of vex in prefix.

        * config/i386/sse.md (*vec_extractv4sf_0, *sse4_1_extractps,
        *vec_extractv4sf_mem, vec_extract_lo_v16hi, vec_extract_hi_v16hi,
        vec_extract_lo_v32qi, vec_extract_hi_v32qi): Use v instead of x
        in vex or maybe_vex alternatives, use maybe_evex instead of vex
        in prefix.

        * config/i386/sse.md (*vec_concatv2sf_sse4_1, *vec_concatv4sf): Use
        v instead of x in vex or maybe_vex alternatives, use
        maybe_evex instead of vex in prefix.

        * config/i386/sse.md (sse_shufps_<mode>, sse_storehps, sse_loadhps,
        sse_storelps, sse_movss, avx2_vec_dup<mode>, avx2_vec_dupv8sf_1,
        sse2_shufpd_<mode>, sse2_storehpd, sse2_storelpd, sse2_loadhpd,
        sse2_loadlpd, sse2_movsd): Use v instead of x in vex or maybe_vex
        alternatives, use maybe_evex instead of vex in prefix.

        * config/i386/sse.md (vec_interleave_lowv4sf,
        *vec_interleave_highv2df, *vec_interleave_lowv2df): Use
        v instead of x in vex or maybe_vex alternatives, use
        maybe_evex instead of vex in prefix.

        * config/i386/sse.md (sse_movhlps, sse_movlhps): Use
        v instead of x in vex or maybe_vex alternatives, use
        maybe_evex instead of vex in prefix.

        * config/i386/sse.md (*avx_cvtpd2dq256_2, *avx_cvtps2pd256_2): Use
        v constraint instead of x.

2016-05-06  Nathan Sidwell  <nathan@codesourcery.com>

        * gimple.c (gimple_call_same_target_p): Unique functions are eq.
        * tree-ssa-tail-merge.c (same_succ::equal): Check pointer eq
        equality first.

2016-05-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70948
        * tree-ssa-structalias.c (find_func_aliases_for_builtin_call):
        Properly clobber all fields of va_list for __builtin_va_start.

2016-05-06  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR debug/70935
        * tree-ssa-loop-unswitch.c (find_loop_guard): Reject guard edge with
        loop latch destination.

2016-05-06  Martin Liska  <mliska@suse.cz>

        * tree-ssa-uninit.c: Apply manual changes
        to the GNU coding style.
        (prune_uninit_phi_opnds): Rename from
        prune_uninit_phi_opnds_in_unrealizable_paths.

2016-05-06  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.opt (madjust-unroll, minvalid-symbols, msoft-atomic,
        mspace): Remove deprecated options.
        * doc/invoke.texi (SH options): Remove -mspace.

2016-05-06  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.md (ic_invalidate_line_sh4a): Fix insn length.

2016-05-06  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.md (*cmpeqsi_t): Remove combine insn pattern and similar
        corresponding combine split pattern.

2016-05-06  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/58219
        * config/sh/predicates.md (long_displacement_mem_operand): New.
        * config/sh/sh.md (movsi_i): Allow for SH2A, disallow for any FPU.
        Add movi20, movi20s alternatives.  Adjust length attribute for
        alternatives.
        (movsi_ie): Allow for any FPU.  Adjust length attribute for
        alternatives.
        (movsi_i_lowpart): Add movi20, movi20s alternatives.  Adjust length
        attribute for alternatives.
        (*mov<mode>): Use long_displacement_mem_operand for length attribute.
        (*movdi_i, movdf_k, movdf_i4, movsf_i, movsf_ie, movsf_ie_ra): Adjust
        length attribute for alternatives.

2016-05-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70960
        * tree-if-conv.c (ifcvt_walk_pattern_tree): Handle non-SSA ops.

2016-05-06  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/52933
        * config/sh/sh.md (*cmp_div0s_7, *cmp_div0s_8): Add div0s variants.
        * config/sh/sh.c (sh_rtx_costs): Add another div0s case.

2016-05-06  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/70875
        * ubsan.c (get_ubsan_type_info_for_type): Remove assert.

2016-05-06  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/54089
        * config/sh/sh.md (*rotcr): Add another variant.

2016-05-06  Richard Biener  <rguenther@suse.de>

        PR middle-end/70931
        * dwarf2out.c (native_encode_initializer): Skip zero-sized fields.

2016-05-06  Richard Biener  <rguenther@suse.de>

        PR middle-end/70941
        * fold-const.c (split_tree): Always convert to the original type
        before negating.

2016-05-06  Richard Biener  <rguenther@suse.de>

        * fwprop.c (fwprop): Remove duplicate cleanup_cfg call.
        (fwprop_addr): Likewise.

2016-05-06  Uros Bizjak  <ubizjak@gmail.com>

        PR target/70873
        * config/i386/i386-protos.h (ix86_standard_x87sse_constant_load_p):
        New prototype.
        * config/i386/i386.c (ix86_standard_x87sse_constant_load_p): New.
        * config/i386/i386.md (push mem splitter): Use find_constant_src in
        the splitter condition.
        (FP load splitter): Use ix86_standard_x87sse_constant_load_p in
        the splitter condition.
        (FP float_extend load splitter): Ditto.

2016-05-05  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (peehole2 patterns): Change true_regnum
        to REGNO in all peephole2 patterns.
        (post-reload splitters): Change true_regnum to REGNO in
        post-reload splitters.
        (zero_extend splitters): Use general_reg_operand and
        nonimmediate_gr_operand predicates.

2016-05-05  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (<avx512>_fmadd_<mode>_mask3<round_name>): Use
        v constraint instead of x.

2016-05-05  Alan Modra  <amodra@gmail.com>

        PR target/68662
        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Don't
        set OPTION_MASK_RELOCATABLE when flag_pic == 2.  Set
        TARGET_NO_FP_IN_TOC for -mrelocatable.
        (MINIMAL_TOC_SECTION_ASM_OP): Remove redundant
        TARGET_RELOCATABLE test.
        (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Likewise.
        (ASM_PREFERRED_EH_DATA_FORMAT): Likewise.
        * config/rs6000/linux64.h (MINIMAL_TOC_SECTION_ASM_OP): Likewise.
        (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Likewise.
        (ASM_PREFERRED_EH_DATA_FORMAT): Likewise.
        * config/rs6000/freebsd64.h (MINIMAL_TOC_SECTION_ASM_OP): Likewise.
        (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Likewise.
        (ASM_PREFERRED_EH_DATA_FORMAT): Likewise.
        * config/rs6000/predicates.md (easy_fp_constant): Likewise.
        * config/rs6000/rs6000.c (rs6000_elf_output_toc_section_asm_op):
        Likewise.
        (rs6000_assemble_integer): Update TARGET_RELOCATABLE test.
        (rs6000_stack_info): Likewise.
        (rs6000_elf_asm_out_constructor): Likewise.
        (rs6000_elf_asm_out_destructor): Likewise.
        (rs6000_elf_declare_function_name): Likewise.
        * config/rs6000/rs6000.md (load_toc_aix_di): Likewise.
        * config/rs6000/rs6000.h (MASK_RELOCATABLE, MASK_MINIMAL_TOC):
        Don't define.

2016-05-05  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_frame_related): Rewrite.

2016-05-05  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_savres_strategy): Don't use
        out-of-line gpr restore for one or two regs if that would add
        a save of lr.

2016-05-04  Uros Bizjak  <ubizjak@gmail.com>

        PR target/70873
        * config/i386/i386.md
        (TARGET_SSE_PARTIAL_REG_DEPENDENCY float_extend sf->df peephole2):
        Change to post-epilogue_completed late splitter.  Use sse_reg_operand
        as operand 0 predicate.
        (TARGET_SSE_PARTIAL_REG_DEPENDENCY float_truncate df->sf peephole2):
        Ditto.
        (TARGET_SSE_PARTIAL_REG_DEPENDENCY float {si,di}->{sf,df} peephole2):
        Ditto.  Emit the pattern using RTX.

        (TARGET_USE_VECTOR_FP_CONVERTS float_extend sf->df splitter):
        Use sse_reg_opreand as operand 0 predicate.  Do not use true_regnum in
        the post-reload splitter.  Use lowpart_subreg instead of gen_rtx_REG.
        (TARGET_USE_VECTOR_FP_CONVERTS float_truncate df->sf splitter):
        Ditto.
        (TARGET_USE_VECTOR_CONVERTS float si->{sf,df} splitter): Use
        sse_reg_operand as operand 0 predicate.

        (TARGET_SPLIT_MEM_OPND_FOR_FP_CONVERTS float_extend sf->df peephole2):
        Use sse_reg_opreand as operand 0 predicate.  Use lowpart_subreg
        instead of gen_rtx_REG.
        (TARGET_SPLIT_MEM_OPND_FOR_FP_CONVERTS float_truncate sf->df peephole2):
        Ditto.

2016-05-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * function.c (emit_use_return_register_into_block): Delete.
        (gen_return_pattern): Delete.
        (emit_return_into_block): Delete.
        (active_insn_between): Delete.
        (convert_jumps_to_returns): Delete.
        (emit_return_for_exit): Delete.
        (thread_prologue_and_epilogue_insns): Delete all code dealing with
        simple_return for shrink-wrapped blocks.
        * shrink-wrap.c (try_shrink_wrapping): Insert simple_return at the
        end of blocks that need one.
        (get_unconverted_simple_return): Delete.
        (convert_to_simple_return): Delete.
        * shrink-wrap.c (get_unconverted_simple_return): Delete declaration.
        (convert_to_simple_return): Ditto.

2016-05-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * cfgcleanup.c (bb_is_just_return): New function.
        (try_optimize_cfg): Simplify jumps to return, branches to return,
        and branches around return.

2016-05-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * cfgcleanup.c (try_simplify_condjump): Don't try to simplify a
        branch to a return.

2016-05-04  Jakub Jelinek  <jakub@redhat.com>

        PR c++/70906
        PR c++/70933
        * tree-core.h (enum operand_equal_flag): Add OEP_HASH_CHECK.
        * tree.c (inchash::add_expr): If !IS_EXPR_CODE_CLASS (tclass),
        assert flags & OEP_HASH_CHECK, instead of asserting it
        never happens.  Handle TARGET_EXPR.
        * fold-const.c (operand_equal_p): For hash verification,
        or in OEP_HASH_CHECK into flags.

2016-05-04  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-coalesce.c (gimple_can_coalesce_p): Fix reference in head
        comment.
        (compute_samebase_partition_bases): Fix typo.

2016-05-04  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (vec_interleave_highv8sf,
        vec_interleave_lowv8sf, vec_interleave_highv4df,
        vec_interleave_lowv4df): Remove constraints from expanders.

        * config/i386/sse.md (sse2_movq128): Use v constraint instead of x.

2016-05-04  Jan Hubicka  <hubicka@ucw.cz>

        * tree-inline.c (expand_call_inline): Fix path dealing with
        making lhs of call statement undefined.

2016-05-04  Jan Hubicka  <hubicka@ucw.cz>

        * cgraph.c (cgraph_node::call_for_symbol_thunks_and_aliases):
        Check availability on NODE, too.
        * cgraph.h (symtab_node::call_for_symbol_and_aliases): Likewise.
        (cgraph_node::call_for_symbol_and_aliases): Likewise.
        (varpool_node::call_for_symbol_and_aliase): Likewise.
        * ipa-pure-const.c (add_new_function): Analyze all bodies.
        (propagate_pure_const): Propagate across interposable functions, too.
        (skip_function_for_local_pure_const): Do not skip interposable bodies
        with aliases.
        (pass_local_pure_const::execute): Update.

2016-05-04  Marek Polacek  <polacek@redhat.com>

        * doc/invoke.texi: Document -Wdangling-else.

2016-05-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config.gcc: Error out when conflicting multilib is detected.  Do not
        loop over multilibs since no combination is legal.

2016-05-04  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.h (PIC_OFFSET_TABLE_REGNUM): Correct.
        * config/rs6000/sysv4.h (TARGET_TOC): Simplify.
        * config/rs6000/rs6000.c (rs6000_elf_output_toc_section_asm_op):
        Align .toc.

2016-05-04  Matthew Fortune  <matthew.fortune@imgtec.com>

        * config/mips/mips-cpus.def (p5600): Avoid IMADD by default.
        Clean up p5600 comments.

2016-05-04  Richard Biener  <rguenther@suse.de>

        * match.pd: Add BIT_FIELD_REF canonicalizations and vector
        constructor simplifications.
        * fold-const.c (fold_ternary_loc): Remove duplicate functionality here.

2016-05-04  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/predicates (post_inc_mem, pre_dec_mem): New predicates.
        * config/sh/sh-protos.h (sh_find_set_of_reg): Return null result if
        result.set_rtx is null instead of aborting.
        * config/sh/sh.h (USE_LOAD_POST_INCREMENT, USE_STORE_PRE_DECREMENT):
        Always enable.
        (USE_LOAD_PRE_DECREMENT, USE_STORE_POST_INCREMENT): Enable for SH2A.
        * config/sh/sh.md (*extend<mode>si2_predec, *mov<mode>_load_predec,
        *mov<mode>_store_postinc): New patterns.

2016-05-04  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd ((A | B) & (A | C)): Generalize to BIT_XOR_EXPR.  Mark
        as commutative.  Check both conversions are NOP.
        ((A & B) OP (C & B)): Remove.

2016-05-04  Alan Modra  <amodra@gmail.com>

        * combine.c (simplify_set): Correct WORD_REGISTER_OPERATIONS test.

2016-05-04  Alan Modra  <amodra@gmail.com>

        PR target/70866
        * config/rs6000/rs6000.c (rs6000_stack_info): Don't set cr_save_p
        when cr2,3,4 are all fixed regs.

2016-05-04  Bernd Schmidt  <bschmidt@redhat.com>

        PR rtl-optimization/57193
        * opts.c (default_options_table): Revert OPT_frename_registers change.
        * doc/invoke.texi (-frename-registers, -O2): Likewise.

2016-05-03  Martin Sebor  <msebor@redhat.com>

        PR c++/66561
        * builtins.c (fold_builtin_FILE): New function.
        (fold_builtin_FUNCTION, fold_builtin_LINE): New functions.
        (fold_builtin_0): Call them.
        * gimplify.c (gimplify_call_expr): Remove the handling of
        BUILT_IN_FILE, BUILT_IN_FUNCTION, and BUILT_IN_LINE.

        PR c++/66561
        * doc/extend.texi (Other Builtins): Update __builtin_FILE,
        __builtin_FUNCTION, and __builtin_LINE to reflect they yield
        constants.

        PR c++/66639
        * doc/extend.texi (Function Names as Strings): Update __func__,
        __FUNCTION__, __PRETTY_FUNCTION__ to reflect they evaluate to
        constants.

2016-05-03  Jakub Jelinek  <jakub@redhat.com>
            Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70916
        * tree-if-conv.c: Include cfganal.h.
        (pass_if_conversion::execute): Call connect_infinite_loops_to_exit
        and remove_fake_exit_edges around the optimization pass.

2016-05-03  Jan Hubicka  <hubicka@ucw.cz>

        * cgraph.c (symbol_table::create_edge): Set inline_failed.
        (cgraph_edge::make_direct): Likewise.
        (cgraph_edge::dump_edge_flags): Dump call_stmt_cannot_inline_p.
        * cgraphclones.c (duplicate_thunk_for_node): Set inline_failed.
        * cif-code.def (CIF_LTO_MISMATCHED_DECLARATIONS): New code
        (CIF_THUNK): New code.
        * ipa-inline-analysis.c (initialize_inline_failed): Preserve
        CIF_FINAL_ERROR codes; do not deal with call_stmt_cannot_inline_p.
        (compute_inline_parameters): Set inline_failed for thunks.
        (inline_analyze_function): Cleanup.
        * ipa-inline.c (can_inline_edge_p): Do not deal with
        call_stmt_cannot_inline_p.
        (can_early_inline_edge_p): Likewise.
        (early_inliner): Initialize inline_failed.
        * lto-cgraph.c (lto_output_edge): Sanity check inline_failed.

2016-05-03  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (x87nonimm_ssenomem_operand): Rename
        from nonimm_ssenomem_operand.
        (nonimm_ssenomem_operand): New predicate.
        * config/i386/i386.md (extendsfdf2): Use nonimm_ssenomem_operand
        as operand 0 predicate.
        (*extendsfdf2): Merge from *extendsfdf2_mixed and *extendsfdf2_i387.
        Disable unsupported alternatives using "enabled" attribute.
        Use register_ssemem_operand as operand 0 predicate.
        (*fop_<mode>_1): Use x87nonimm_ssenomem_operand as operand 1 predicate.

2016-05-03  Marek Polacek  <polacek@redhat.com>

        PR c/70859
        * input.c (expansion_point_location): New function.
        * input.h (expansion_point_location): Declare.

2016-05-03  Pierre-Marie de Rodat  <derodat@adacore.com>

        * dwarf2out.c (resolve_args_picking_1): Replace the frame_offset
        occurence with frame_offset_ ones.

2016-05-03  Alan Modra  <amodra@gmail.com>

        PR rtl-optimization/70890
        * ira.c (combine_and_move_insns): When moving def_insn, remove
        equivs on use_insn.

2016-05-03  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/s390.md ("*r<noxa>sbg_<mode>_sll")
        ("*r<noxa>sbg_<mode>_srl"): New define_insns.
        ("*r<noxa>sbg_<mode>_srl_bitmask"): Rename by adding "_bitmask".
        ("*r<noxa>sbg_<mode>_sll_bitmask"): Likewise.

2016-05-03  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_savres_strategy): Correct condition
        for SAVE_MULTIPLE/STORE_MULTIPLE.

2016-05-03  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.md (*truncdfsf_mixed, *truncdfsf_i387,
        *truncxfsf2_mixed, *truncxfdf2_mixed): Use v constraint instead of x.

2016-05-03  Richard Biener  <rguenther@suse.de>

        * gimplify.h (get_initialized_tmp_var): Add allow_ssa parameter
        default true.
        (gimplify_arg): Likewise.
        * gimplify.c (gimplify_expr): Add overload with allow_ssa parameter,
        re-writing the result to a decl if required.
        (internal_get_tmp_var): Add allow_ssa parameter
        and override into_ssa with it.
        (get_formal_tmp_var): Adjust.
        (get_initialized_tmp_var): Add allow_ssa parameter.
        (gimplify_arg): Add allow_ssa parameter and avoid generating
        SSA names for the result false.
        (gimplify_call_expr): If the call may return twice do not
        gimplify parameters into SSA.
        (prepare_gimple_addressable): Do not allow an SSA name as temporary.
        (gimplify_modify_expr): Adjust assert.  For noreturn calls
        with a SSA name LHS adjust its def.
        (gimplify_save_expr): Do not allow an SSA name as save-expr result.
        (gimplify_one_sizepos): Do not allow an SSA name as a sizepos.
        (gimplify_body): Init GIMPLE SSA data structures and gimplify into-SSA.
        (gimplify_scan_omp_clauses): Make sure OMP_CLAUSE_SIZE is not
        an SSA name.  Likewise for OMP_CLAUSE_REDUCTION operands.
        (gimplify_omp_for): Likewise for OMP_CLAUSE_DECL.  Likewise
        for OMP_FOR_COND,  OMP_FOR_INCR and OMP_CLAUSE_LINEAR_STEP.
        (optimize_target_teams): Do not allow SSA names for clause operands.
        (gimplify_expr): Likewise for where we mark the result addressable.
        * passes.def (pass_init_datastructures): Remove.
        * tree-into-ssa.c (mark_def_sites): Ignore existing SSA names.
        (rewrite_stmt): Likewise.
        * tree-inline.c (initialize_cfun): Properly transfer SSA state.
        (replace_locals_op): Replace SSA names.
        (copy_gimple_seq_and_replace_locals): Init src_cfun.
        * gimple-low.c (lower_builtin_setjmp): Deal with SSA.
        * cgraph.c (release_function_body): Free CFG annotations only
        when we have a CFG.  Simplify.
        * gimple-fold.c (gimplify_and_update_call_from_tree): Use
        force_gimple_operand instead of get_initialized_tmp_var.
        * tree-pass.h (make_pass_init_datastructures): Remove.
        * tree-ssa.c (execute_init_datastructures): Remove.
        (pass_data_init_datastructures): Likewise.
        (class pass_init_datastructures): Likewise.
        (make_pass_init_datastructures): Likewise.
        * omp-low.c (create_omp_child_function): Init SSA data structures.
        (grid_expand_target_grid_body): Likewise.
        * tree-cfg.c (move_block_to_fn): Double-check the DEF is an SSA
        name before adding it to names_to_release.
        (remove_bb): Always release SSA defs.
        * tree-ssa-ccp.c (get_default_value): Check SSA_NAME_VAR
        before dereferencing it.
        * cgraphunit.c (init_lowered_empty_function): Always
        int SSA data structures.
        * tree-ssanames.c (release_defs): Remove assert that we are in
        SSA form.
        * trans-mem.c (diagnose_tm_1): Handle SSA name function.

2016-05-03  Jakub Jelinek  <jakub@redhat.com>
            Uros Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/70467
        * config/i386/predicates.md (x86_64_hilo_int_operand,
        x86_64_hilo_general_operand): New predicates.
        * config/i386/constraints.md (Wd): New constraint.
        * config/i386/i386.md (mode attr di): Use Wd instead of e.
        (general_hilo_operand): New mode attr.
        (add<mode>3, sub<mode>3): Use <general_hilo_operand>
        instead of <general_operand>.
        (*add<dwi>3_doubleword, *sub<dwi>3_doubleword): Use
        x86_64_hilo_general_operand instead of <general_operand>.

2016-05-03  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/70916
        * tree-if-conv.c (constant_or_ssa_name): Removed.
        (fold_build_cond_expr): Use is_gimple_val instead of
        constant_or_ssa_name.

        PR tree-optimization/70916
        * tree-vect-patterns.c (vect_recog_mask_conversion_pattern): Give up
        if COND_EXPR rhs1 is neither SSA_NAME nor COMPARISON_CLASS_P.

        PR target/49244
        * tree-ssa-ccp.c: Include stor-layout.h and optabs-query.h.
        (optimize_atomic_bit_test_and): New function.
        (pass_fold_builtins::execute): Use it.
        * optabs.def (atomic_bit_test_and_set_optab,
        atomic_bit_test_and_complement_optab,
        atomic_bit_test_and_reset_optab): New optabs.
        * internal-fn.def (ATOMIC_BIT_TEST_AND_SET,
        ATOMIC_BIT_TEST_AND_COMPLEMENT, ATOMIC_BIT_TEST_AND_RESET): New ifns.
        * builtins.h (expand_ifn_atomic_bit_test_and): New prototype.
        * builtins.c (expand_ifn_atomic_bit_test_and): New function.
        * internal-fn.c (expand_ATOMIC_BIT_TEST_AND_SET,
        expand_ATOMIC_BIT_TEST_AND_COMPLEMENT,
        expand_ATOMIC_BIT_TEST_AND_RESET): New functions.
        * doc/md.texi (atomic_bit_test_and_set@var{mode},
        atomic_bit_test_and_complement@var{mode},
        atomic_bit_test_and_reset@var{mode}): Document.
        * config/i386/sync.md (atomic_bit_test_and_set<mode>,
        atomic_bit_test_and_complement<mode>,
        atomic_bit_test_and_reset<mode>): New expanders.
        (atomic_bit_test_and_set<mode>_1,
        atomic_bit_test_and_complement<mode>_1,
        atomic_bit_test_and_reset<mode>_1): New insns.

2016-05-03  Richard Sandiford  <richard.sandiford@arm.com>

        PR rtl-optimization/70687
        * combine.c (change_zero_ext): Check for scalar modes.  Use wide_int
        instead of unsigned HOST_WIDE_INT.

2016-05-03  Bernd Schmidt  <bschmidt@redhat.com>

        PR rtl-optimization/44281
        * hard-reg-set.h (struct target_hard_regs): New field
        x_fixed_nonglobal_reg_set.
        (fixed_nonglobal_reg_set): New macro.
        * reginfo.c (init_reg_sets_1): Initialize it.
        * ira.c (setup_alloc_regs): Use fixed_nonglobal_reg_set instead
        of fixed_reg_set.
        * df-scan.c (df_insn_refs_collect): Asms may reference global regs.

2016-05-03  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/56541
        * doc/invoke.texi (@item max-tree-if-conversion-phi-args): New item.
        * params.def (PARAM_MAX_TREE_IF_CONVERSION_PHI_ARGS): new param.
        * tree-if-conv.c (MAX_PHI_ARG_NUM): new macro.
        (any_complicated_phi): new static variable.
        (aggressive_if_conv): delete.
        (if_convertible_phi_p): support phis with more than two arguments.
        (if_convertible_bb_p): remvoe check on aggressive_if_conv and
        critical pred edges.
        (ifcvt_split_critical_edges): support phis with more than two
        arguments by checking new parameter.  only split critical edges
        if needed.
        (tree_if_conversion): handle simd pragma marked loop using new
        local variable aggressive_if_conv.  check any_complicated_phi.

2016-05-03  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (get_computation_cost_at): Check depends_on
        before using it.

2016-05-03  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (get_computation_cost_at): Don't clobber
        cbase.

2016-05-03  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.md (udivsi3, divsi3, mulsi3): Simplify.
        (mulhisi3, umulhisi3, (smulsi3_highpart, umulsi3_highpart): Convert to
        define_insn_and_split.
        (mulsi3_i): New define_insn_and_split.
        (mulsi3_call): Convert to define_insn.
        (mulsidi3, mulsidi3_compact, umulsidi3, umulsidi3_compact):
        Remove constraints.

2016-05-02  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * machmode.h (mode_complex): Add support to give the complex mode
        for a given mode.
        (GET_MODE_COMPLEX_MODE): Likewise.
        * stor-layout.c (layout_type): For COMPLEX_TYPE, use the mode
        stored by build_complex_type and gfc_build_complex_type instead of
        trying to figure out the appropriate mode based on the size. Raise
        an assertion error, if the type was not set.
        * genmodes.c (struct mode_data): Add field for the complex type of
        the given type.
        (blank_mode): Likewise.
        (make_complex_modes): Remember the complex mode created in the
        base type.
        (emit_mode_complex): Write out the mode_complex array to map a
        type mode to the complex version.
        (emit_insn_modes_c): Likewise.
        * tree.c (build_complex_type): Set the complex type to use before
        calling layout_type.
        * config/rs6000/rs6000.c (rs6000_hard_regno_nregs_internal): Add
        support for __float128 complex datatypes.
        (rs6000_hard_regno_mode_ok): Likewise.
        (rs6000_setup_reg_addr_masks): Likewise.
        (rs6000_complex_function_value): Likewise.
        * config/rs6000/rs6000.h (FLOAT128_IEEE_P): Likewise.
        __float128 and __ibm128 complex.
        (FLOAT128_IBM_P): Likewise.
        (ALTIVEC_ARG_MAX_RETURN): Likewise.
        * doc/extend.texi (Additional Floating Types): Document that
        -mfloat128 must be used to enable __float128.  Document complex
        __float128 and __ibm128 support.

2016-05-02  Jakub Jelinek  <jakub@redhat.com>

        PR target/49244
        * gimple.c (gimple_builtin_call_types_compatible_p): Allow
        char/short arguments promoted to int because of promote_prototypes.

2016-05-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (register_ssemem_operand): New predicate.
        * config/i386/i386.md (*cmpi<FPCMP:unord><MODEF:mode>): Merge from
        *cmpi<FPCMP:unord><MODEF:mode>_mixed and
        *cmpi<FPCMP:unord><X87MODEF:mode>_i387.  Disable unsupported
        alternatives using "enabled" attribute.  Use register_ssemem_operand
        as operand 1 predicate.
        (*cmpi<unord>xf_i387): Split XFmode pattern from
        *cmpi<FPCMP:unord><X87MODEF:mode>_i387.
        (*absneg<mode>2): Merge from *absneg<mode>2_mixed and
        *absneg<mode>2_i387.  Disable unsupported alternatives using
        "enabled" attribute.
        (*absnegxf2_i387): Split XFmode pattern from *absneg<mode>2_i387.

2016-05-02  Nathan Sidwell  <nathan@codesourcery.com>

        * omp-low.c (lower_oacc_head_tail): Assert there is at least one
        marker.
        (oacc_loop_process): Check mask for loop termination.

2016-05-02  Jan Hubicka  <hubicka@ucw.cz>

        * cif-code.def (CIF_THUNK): Add.
        * ipa-inline-analsysis.c (evaluate_conditions_for_known_args): Revert
        accidental change.

2016-05-02  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline-analysis.c (reset_inline_summary): Clear fp_expressions
        (dump_inline_summary): Dump it.
        (fp_expression_p): New predicate.
        (estimate_function_body_sizes): Use it.
        (inline_merge_summary): Merge fp_expressions.
        (inline_read_section): Read fp_expressions.
        (inline_write_summary): Write fp_expressions.
        * ipa-inline.c (can_inline_edge_p): Permit inlining across fp math
        codegen boundary if either caller or callee is !fp_expressions.
        * ipa-inline.h (inline_summary): Add fp_expressions.
        * ipa-inline-transform.c (inline_call): When inlining !fp_expressions
        to fp_expressions be sure the fp generation flags are updated.

2016-05-02  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/70467
        * cse.c (cse_insn): Handle no-op MEM moves after folding.

        PR rtl-optimization/70467
        * ipa-pure-const.c (check_call): Handle internal calls even in
        ipa mode like in local mode.

2016-05-02  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/install.texi: Document supported in-tree gmp/mpfr/mpc versions.

2016-05-02  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (X u< X, X u> X): New transformations.

2016-05-02  Marc Glisse  <marc.glisse@inria.fr>

        * flag-types.h (enum warn_strict_overflow_code): Move ...
        * coretypes.h: ... here.
        * fold-const.h (fold_overflow_warning): Declare.
        * fold-const.c (fold_overflow_warning): Make non-static.
        (fold_comparison): Move the transformation of X +- C1 CMP C2
        into X CMP C2 -+ C1 ...
        * match.pd: ... here.
        * gimple-fold.c (fold_stmt_1): Protect with
        fold_defer_overflow_warnings.

2016-05-02  Nathan Sidwell  <nathan@codesourcery.com>

        * omp-low.c (struct oacc_loop): Add 'inner' field.
        (new_oacc_loop_raw): Initialize it to zero.
        (oacc_loop_fixed_partitions): Initialize it.
        (oacc_loop_auto_partitions): Partition outermost loop to outermost
        available partitioning.

2016-05-02  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (mulsidi3): Change operand 0 predicate to
        register_operand.
        (umulsidi3): Likewise.
        (indirect_jump): Fix jump instruction assembly patterns.

2016-05-02  Thomas Schwinge  <thomas@codesourcery.com>

        PR target/70860
        * config/nvptx/nvptx.c (nvptx_libcall_value): Handle NULL cfun.
        (nvptx_function_value): Assert non-NULL cfun.

2016-05-02  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/70886
        * sched-deps.c (estimate_dep_weak): Canonicalize cselib values.

        * cselib.h (rtx_equal_for_cselib_1): Declare.
        (rtx_equal_for_cselib_p: New inline function.
        * cselib.c (rtx_equal_for_cselib_p): Delete.
        (rtx_equal_for_cselib_1): Make public.

2016-05-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (nonimm_ssenomem_operand): New predicate.
        (register_mixssei387nonimm_operand): Remove predicate.
        * config/i386/i386.md (*fop_<mode>_comm): Merge from
        *fop_<mode>_comm_mixed and *fop_<mode>_comm_i387.  Disable unsupported
        alternatives using "enabled" attribute.  Also check X87_ENABLE_ARITH
        for TARGET_MIX_SSE_I387 alternatives.
        (*fop_<mode>_1): Merge from *fop_<mode>_1_mixed and *fop_<mode>_1_i387.
        Disable unsupported alternatives using "enabled" attribute.  Use
        nonimm_ssenomem_operand as operand 1 predicate.  Also check
        X87_ENABLE_ARITH for TARGET_MIX_SSE_I387 alternatives.

2016-05-02  Richard Sandiford  <richard.sandiford@arm.com>

        * tree.c (cst_and_fits_in_hwi): Simplify.

2016-05-02  Richard Sandiford  <richard.sandiford@arm.com>

        * tree.h (wi::to_wide): New function.
        * expr.c (expand_expr_real_1): Use wi::to_wide.
        * fold-const.c (int_const_binop_1): Likewise.
        (extract_muldiv_1): Likewise.

2016-05-02  Richard Sandiford  <richard.sandiford@arm.com>

        * wide-int.h: Update offset_int and widest_int documentation.
        (WI_SIGNED_SHIFT_RESULT): New macro.
        (wi::binary_shift): Define signed_shift_result_type for
        shifts on offset_int- and widest_int-like types.
        (generic_wide_int): Support <<= and >>= if << and >> are supported.
        * tree.h (int_bit_position): Use shift operators instead of wi::
         shifts.
        * alias.c (adjust_offset_for_component_ref): Likewise.
        * expr.c (get_inner_reference): Likewise.
        * fold-const.c (fold_comparison): Likewise.
        * gimple-fold.c (fold_nonarray_ctor_reference): Likewise.
        * gimple-ssa-strength-reduction.c (restructure_reference): Likewise.
        * tree-dfa.c (get_ref_base_and_extent): Likewise.
        * tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Likewise.
        (stmt_kills_ref_p): Likewise.
        * tree-ssa-ccp.c (bit_value_binop_1): Likewise.
        * tree-ssa-math-opts.c (find_bswap_or_nop_load): Likewise.
        * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Likewise.
        (ao_ref_init_from_vn_reference): Likewise.

2016-05-02  Richard Sandiford  <richard.sandiford@arm.com>

        * wide-int.h: Update offset_int and widest_int documentation.
        (WI_SIGNED_BINARY_PREDICATE_RESULT): New macro.
        (wi::binary_traits): Allow ordered comparisons between offset_int and
        offset_int, between widest_int and widest_int, and between either
        of these types and basic C types.
        (operator <, <=, >, >=): Define for the same combinations.
        * tree.h (tree_int_cst_lt): Use comparison operators instead
        of wi:: comparisons.
        (tree_int_cst_le): Likewise.
        * gimple-fold.c (fold_array_ctor_reference): Likewise.
        (fold_nonarray_ctor_reference): Likewise.
        * gimple-ssa-strength-reduction.c (record_increment): Likewise.
        * tree-affine.c (aff_comb_cannot_overlap_p): Likewise.
        * tree-parloops.c (try_transform_to_exit_first_loop_alt): Likewise.
        * tree-sra.c (completely_scalarize): Likewise.
        * tree-ssa-alias.c (stmt_kills_ref_p): Likewise.
        * tree-ssa-reassoc.c (extract_bit_test_mask): Likewise.
        * tree-vrp.c (extract_range_from_binary_expr_1): Likewise.
        (check_for_binary_op_overflow): Likewise.
        (search_for_addr_array): Likewise.
        * ubsan.c (ubsan_expand_objsize_ifn): Likewise.

2016-05-02  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_preferred_simd_mode): Remove enum keyword.
        (arc_save_restore): Likewise.
        (arc_dwarf_register_span): Likewise.
        (arc_output_pic_addr_const): Initialize suffix variable.

2016-05-02  Martin Liska  <mliska@suse.cz>

        * symbol-summary.h (function_summary::function_summary):
        Remove checking assert for all cgraph nodes.
        (function_summary::get): Check summary_uid.
        (symtab_insertion): Check summary_uid.

2016-05-02  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-protos.h (compact_memory_operand_p): Declare.
        * config/arc/arc.c (arc_output_commutative_cond_exec): Consider
        bmaskn instruction.
        (arc_dwarf_register_span): Remove enum keyword.
        (compact_memory_operand_p): New function.
        * config/arc/arc.h (reg_class): Add code density register classes.
        (REG_CLASS_NAMES): Likewise.
        (REG_CLASS_CONTENTS): Likewise.
        * config/arc/arc.md (*movqi_insn): Add code density instructions.
        (*movhi_insn, *movsi_insn, *movsf_insn): Likewise.
        (*extendhisi2_i, andsi3_i, cmpsi_cc_insn_mixed): Likewise.
        (*cmpsi_cc_c_insn, *movsi_ne): Likewise.
        * config/arc/constraints.md (C2p, Uts, Cm1, Cm3, Ucd): New
        constraints.
        (h, Rcd, Rsd, Rzd): New register constraints.
        (T): Use compact_memory_operand_p function.
        * config/arc/predicates.md (compact_load_memory_operand): Remove.

2016-05-02  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.md (*negnegt, *movtt): Remove.

2016-05-02  Marek Polacek  <polacek@redhat.com>
            Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/70700
        * tree-ssa-structalias.c (dump_pred_graph): Fix getting varinfo for ids
        bigger than FIRST_REF_NODE.

2016-05-02  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/52898
        * config/sh/sh.c (sh_option_override): Remove TARGET_CBRANCHDI4,
        TARGET_CMPEQDI_T.
        (prepare_cbranch_operands): Don't use scratch register.  Assume that
        function is used when pseudos can be created.
        (expand_cbranchdi4): Likewise.  Remove unused TARGET_CMPEQDI_T paths.
        * config/sh/sh.md (cbranchsi4): Allow only when pseudos can be created.
        (cbranchdi4, cbranchdi4_i): Simplify to single cbranchdi4
        define_expand.  Allow it only when pseudos can be created.
        * config/sh/sh.opt (mcbranchdi, mcmpeqdi): Delete.

2016-05-01  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/constraints.md (BC): Only allow -1 operands.
        * config/i386/sse.md (mov<mode>_internal): Add (v,C) alternative.
        Add "enabled" attribute.  Update XI mode attribute calculation.
        * config/i386/i386.md (*movxi_internal_avx512f): Add (v,C) alternative.
        (*movoi_internal_avx): Update XI mode attribute calculation.
        (*movti_internal): Ditto.

2016-05-01  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.md (push, pop, ic_invalidate_line, cstoresi4, cstoredi4,
        cstoresf4, cstoredf4, fix_truncsfsi2): Remove constraints.

2016-05-01  Eric Botcazou  <ebotcazou@adacore.com>

        * config/rs6000/rs6000.c (altivec_expand_lv_builtin): Do not use switch
        statement on instruction code.  Remove trailing spaces.
        (altivec_expand_stv_builtin): Likewise.

2016-05-01  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.h (TARGET_SH4): Remove and use default implementation.
        (TARGET_FPU_DOUBLE): Simplify.
        (BASE_ARG_REG, DOUBLE_TYPE_SIZE, OPTIMIZE_MODE_SWITCHING): Replace
        'TARGET_SH4 || TARGET_SH2A_DOUBLE' conditions with 'TARGET_FPU_DOUBLE'.
        * config/sh/sh.c: Replace 'TARGET_SH4 || TARGET_SH2A_DOUBLE' conditions
        with 'TARGET_FPU_DOUBLE'.
        * config/sh/sh.md: Likewise.

2016-05-01  Yoshinori Sato  <ysato@users.sourceforge.jp>

        * config/sh/linux.h (SH_DIV_STRATEGY_DEFAULT,
        SH_DIV_STR_FOR_SIZE): Remove.
        * config/sh/netbsd-elf.h (SH_DIV_STRATEGY_DEFAULT,
        SH_DIV_STR_FOR_SIZE): Remove.

2016-05-01  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/predicates.md (any_register_operand, zero_extend_operand,
        logical_reg_operand): Delete.
        (arith_operand, arith_reg_dest, arith_or_int_operand, cmpsi_operand,
        arith_reg_or_0_operand, arith_reg_or_0_or_1_operand, logical_operand,
        logical_and_operand, movsrc_no_disp_mem_operand): Rewrite using
        match_operand and match_test.
        (sh_const_vec, sh_1el_vec): Remove redundant checks.  Declare local
        variables on their first use.  Return bool values.
        * config/sh/sh.h (LOAD_EXTEND_OP): Update comment.
        * config/sh/sh.md (andsi3, iorsi3): Use arith_reg_dest for result and
        arith_reg_operand for input operand.  Remove empty constraints.
        (xorsi3): Delete.
        (*xorsi3_compact): Rename to xorsi3.
        (zero_extend<mode>si2): Use arith_reg_operand for input operand.
        (*zero_extend<mode>si2_disp_mem): Update comment.
        (mov_nop): Delete.

2016-04-30  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/t-sh: Remove SH5 support.
        * config.gcc: Likewise.
        * configure: Likewise.

2016-04-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/darwin.h (LINK_COMMAND_SPEC_A): Handle -fcilkplus.

2016-04-30  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.c (register_sh_passes, sh_option_override,
        sh_print_operand, prepare_move_operands,
        sh_can_follow_jump): Remove TARGET_SH1 checks.
        * config/sh/sh.h (TARGET_VARARGS_PRETEND_ARGS, VALID_REGISTER_P,
        PROMOTE_MODE): Likewise.
        * config/sh/sh.md (adddi3, addsi3, subdi3, subsi3, andsi3,
        movdi): Likewise.

2016-04-30  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_savres_strategy): Force inline
        restoring when fixed_reg_p, but allow out-of-line or stmw save.
        Check for user regs later to avoid unnecessary looping over regs.
        Merge user reg check with non-saved reg check.  Don't force
        inline VR restore when static chain used.
        (rs6000_frame_related): Omit eh_frame info for user regs when
        saving.
        (fixed_regs_p): Delete.

2016-04-30  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (SAVRES_MULTIPLE): Replace with..
        (SAVE_STRATEGY, REST_STRATEGY): ..this.  Renumber and sort enum.
        Update all uses.

2016-04-30  Alan Modra  <amodra@gmail.com>

        PR target/69645
        * config/rs6000/rs6000.c (fixed_reg_p): New function.
        (fixed_regs_p): Rename from global_regs_p.  Call fixed_reg_p.
        Update all uses.

2016-04-30  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_conditional_register_usage):
        Remove redundant PIC_OFFSET_TABLE_REGNUM test.  Replace with
        flag_pic test for Darwin.

2016-04-30  Alan Modra  <amodra@gmail.com>

        * regs.h (struct reg_info_t): Delete freq_calls_crossed and
        throw_calls_crossed.
        (REG_FREQ_CALLS_CROSSED): Delete.
        (REG_N_THROWING_CALLS_CROSSED): Delete.
        * regstat.c (regstat_bb_compute_ri): Don't calculate
        REG_FREQ_CALLS_CROSSED and REG_N_THROWING_CALLS_CROSSED.
        (dump_reg_info): Don't print call cross frequency.
        * ira.c (combine_and_move_insns): Don't set REG_FREQ_CALLS_CROSSED
        and REG_N_THROWING_CALLS_CROSSED.

2016-04-30  Alan Modra  <amodra@gmail.com>

        * regs.h (struct reg_info_t): Delete live_length.
        (REG_LIVE_LENGTH): Delete macro.
        * regstat.c (regstat_bb_compute_ri): Delete artificial_uses,
        local_live, local_processed and local_live_last_luid params.
        Replace bb_index param with bb.  Don't set REG_LIVE_LENGTH.
        Formatting fixes.
        (regstat_compute_ri): Adjust for above.  Don't set
        REG_LIVE_LENGTH.
        (dump_reg_info): Don't print live length.
        * ira.c (update_equiv_regs): Replace test of REG_LIVE_LENGTH
        with test of setjmp_crosses.  Don't set REG_LIVE_LENGTH.
        Localize loop_depth var.

2016-04-30  Alan Modra  <amodra@gmail.com>

        * ira.c (enum valid_equiv): New.
        (validate_equiv_mem): Return enum.
        (update_equiv_mem): Create replacement in more cases.
        (add_store_equivs): Update validate_equiv_mem call.

2016-04-30  Alan Modra  <amodra@gmail.com>

        * ira.c (combine_and_move_insns): Rather than scanning insns,
        use DF infrastucture to find use and def insns.

2016-04-30  Alan Modra  <amodra@gmail.com>

        ira.c (combine_and_move_insns): Move invariant conditions..
        (ira.c): ..to here.  Call combine_and_move_insns before
        add_store_equivs.  Call grow_reg_equivs later.  Allocate
        req_equiv later using max_reg_num() rather than global max_regno.
        (contains_replace_regs): Delete.
        (add_store_equivs): Remove contains_replace_regs test.

2016-04-30  Alan Modra  <amodra@gmail.com>

        * ira.c (struct equiv_mem_data): New.
        (equiv_mem, equiv_mem_modified): Delete static vars.
        (validate_equiv_mem_from_store): Use "data" param to communicate..
        (validate_equiv_mem): ..from here.

2016-04-30  Alan Modra  <amodra@gmail.com>

        * ira.c (add_store_equivs, combine_and_move_insns): New functions,
        split out from..
        (update_reg_equivs): ..here.  Move allocation and freeing of
        reg_equiv, and calls to grow_reg_equivs, init_alias_analysis,
        end_alias_analysis to..
        (ira): ..here.

2016-04-30  Alan Modra  <amodra@gmail.com>

        * ira.c (pdx_subregs): Delete.
        (struct equivalence): Add pdx_subregs field.
        (set_paradoxical_subreg): Remove pdx_subregs param.  Update
        pdx_subregs access.
        (update_equiv_regs): Don't create or free pdx_subregs.  Update
        pdx_subregs access.

2016-04-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/altivec.h: Change definitions of vec_xl and
        vec_xst.
        * config/rs6000/rs6000-builtin.def (LD_ELEMREV_V2DF): New.
        (LD_ELEMREV_V2DI): New.
        (LD_ELEMREV_V4SF): New.
        (LD_ELEMREV_V4SI): New.
        (LD_ELEMREV_V8HI): New.
        (LD_ELEMREV_V16QI): New.
        (ST_ELEMREV_V2DF): New.
        (ST_ELEMREV_V2DI): New.
        (ST_ELEMREV_V4SF): New.
        (ST_ELEMREV_V4SI): New.
        (ST_ELEMREV_V8HI): New.
        (ST_ELEMREV_V16QI): New.
        (XL): New.
        (XST): New.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        descriptions for VSX_BUILTIN_VEC_XL and VSX_BUILTIN_VEC_XST.
        * config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Map from
        TARGET_P9_VECTOR to RS6000_BTM_P9_VECTOR.
        (altivec_expand_builtin): Add handling for
        VSX_BUILTIN_ST_ELEMREV_<MODE> and VSX_BUILTIN_LD_ELEMREV_<MODE>.
        (rs6000_invalid_builtin): Add error-checking for
        RS6000_BTM_P9_VECTOR.
        (altivec_init_builtins): Define builtins used to implement vec_xl
        and vec_xst.
        (rs6000_builtin_mask_names): Define power9-vector.
        * config/rs6000/rs6000.h (MASK_P9_VECTOR): Define.
        (RS6000_BTM_P9_VECTOR): Define.
        (RS6000_BTM_COMMON): Include RS6000_BTM_P9_VECTOR.
        * config/rs6000/vsx.md (vsx_ld_elemrev_v2di): New define_insn.
        (vsx_ld_elemrev_v2df): Likewise.
        (vsx_ld_elemrev_v4sf): Likewise.
        (vsx_ld_elemrev_v4si): Likewise.
        (vsx_ld_elemrev_v8hi): Likewise.
        (vsx_ld_elemrev_v16qi): Likewise.
        (vsx_st_elemrev_v2df): Likewise.
        (vsx_st_elemrev_v2di): Likewise.
        (vsx_st_elemrev_v4sf): Likewise.
        (vsx_st_elemrev_v4si): Likewise.
        (vsx_st_elemrev_v8hi): Likewise.
        (vsx_st_elemrev_v16qi): Likewise.
        * doc/extend.texi: Add prototypes for vec_xl and vec_xst.  Correct
        grammar.

2016-04-29  Patrick Palka  <ppalka@gcc.gnu.org>

        * tree-ssa-threadedge.c (simplify_control_stmt_condition): Split
        out into ...
        (simplify_control_stmt_condition_1): ... here.  Recurse into
        BIT_AND_EXPRs and BIT_IOR_EXPRs.

2016-04-29  David Edelsohn  <dje.gcc@gmail.com>

        PR target/69810
        * config/rs6000/rs6000.md (EXTQI): Don't allow extension to HImode.
        (zero_extendqi<mode>2_dot): Revert earlier conversion from
        define_insn_and_split to define_insn.
        (zero_extendqi<mode>2_dot2): Same.
        (extendqi<mode>2_dot): Same.
        (extendqi<mode>2_dot2): Same.

2016-04-29  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (unspec): Add UNSPEC_PROBE_STACK.
        (probe_stack): New expander.
        (probe_stack_<mode>): New insn pattern.

2016-04-29  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md
        (operations with memory inputs setting flags peephole2):
        Remove uneeded REG_P checks.  Cleanup pattern generation.

2016-04-29  Ilya Enkovich  <ilya.enkovich@intel.com>

        * tree-vect-loop.c (vect_transform_loop): Fix
        nb_iterations_upper_bound computation for vectorized loop.

2016-04-29  Marek Polacek  <polacek@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/70342
        * fold-const.c (tree_single_nonzero_warnv_p): For TARGET_EXPR, use
        TARGET_EXPR_SLOT as a base.

2016-04-29  Andrew Burgess  <andrew.burgess@embecosm.com>

        * config/arc/arc.md (*loadqi_update): Replace use of 'rI' constraint
        with 'rCm2' constraints to limit possible immediate size.
        (*load_zeroextendqisi_update): Likewise.
        (*load_signextendqisi_update): Likewise.
        (*loadhi_update): Likewise.
        (*load_zeroextendhisi_update): Likewise.
        (*load_signextendhisi_update): Likewise.
        (*loadsi_update): Likewise.
        (*loadsf_update): Likewise.

2016-04-29  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (constm1_operand): Fix comparison.

2016-04-29  Claudiu Zissulescu  <claziss@synopsys.com>

        * testsuite/gcc.target/arc/ieee_eq.c: New test.

2016-04-29  Oleg Endo  <olegendo@gcc.gnu.org>

        * common/config/sh/sh-common.c (sh_option_optimization_table): Remove
        remaining SH5 related settings.
        * config/sh/sh-protos.h (shmedia_cleanup_truncate,
        shmedia_prepare_call_address): Delete.
        * config/sh/sh.c (sh_print_operand, output_stack_adjust,
        DWARF_CIE_DATA_ALIGNMENT, LOCAL_ALIGNMENT): Update comments.
        * config/sh/sh.h (SUBTARGET_ASM_RELAX_SPEC,
        UNSUPPORTED_SH2A): Remove m5 checks.
        (sh_divide_strategy_e): Remove SH5 division strategies.
        (TARGET_PTRMEMFUNC_VBIT_LOCATION): Remove and use default.
        * config/sh/sh.md (divsf3): Reinstate define_expand pattern.

2016-04-29  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_rtx_costs): Update documentation.

2016-04-29  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/2964.md ("z13_unit_fxu", "z13_0"): Remove lder.
        * config/s390/s390.md ("movsi_larl", "*movsi_esa", "mov<mode>"):
        Change lder to ldr.
        * config/s390/vector.md ("mov<mode>"): Likewise.

2016-04-29  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/constraints.md ("U", "W"): Invoke
        s390_mem_constraint with "ZR" and "ZT".
        * config/s390/s390.c (s390_check_qrst_address): Reject invalid
        addresses when using LRA.  Accept also short displacements for S
        and T constraints.  Do not check for long displacement target for
        S and T constraints.
        (s390_mem_constraint): Remove handling of U and W constraints.
        * config/s390/s390.md (various patterns): Remove the short
        displacement constraints (Q and R) if a long displacement
        constraint is present.  Add longdisp as required CPU capability.
        * config/s390/vector.md: Likewise.
        * config/s390/vx-builtins.md: Likewise.

2016-04-29  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

        PR target/60040
        * reload1.c (reload): Call finish_spills before
        restarting reload loop. Skip select_reload_regs
        if update_eliminables_and_spill returns true.

2016-04-29  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.h (UNSIGNED_INT12, UNSIGNED_INT16): Define.
        * config/arc/arc.md (umulhisi3): Use arc_short_operand predicate.
        (umulhisi3_imm): Update predicates and constraint letters.
        (umulhisi3_reg): Declare instruction as commutative.
        * config/arc/constraints.md (J12, J16): New constraints.
        * config/arc/predicates.md (short_unsigned_const_operand): New
        predicate.
        (arc_short_operand): Likewise.
        * testsuite/gcc.target/arc/umulsihi3_z.c: New file.

2016-04-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/13962
        PR tree-optimization/65686
        * tree-ssa-alias.h (ptrs_compare_unequal): Declare.
        * tree-ssa-alias.c (ptrs_compare_unequal): New function
        using PTA to compare pointers.
        * match.pd: Add pattern for pointer equality compare simplification
        using ptrs_compare_unequal.

2016-04-29  Richard Biener  <rguenther@suse.de>

        * stor-layout.c (layout_type): Do not build a pointer-to-element
        type for arrays.

2016-04-29  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (Load+RegOp to Mov+MemOp peephole2):
        Use SWI mode iterator.  Use general_reg_operand predicate.
        (Load+RegOp to Mov+MemOp peephole2 with vector regs): Split
        peephole to MMX and SSE part.  Use mmx_reg_operand and sse_reg_operand
        predicates.

2016-04-29  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/70843
        * fold-const.c (operand_equal_p): Don't verify hash value equality
        if arg0 == arg1.
        * tree.c (inchash::add_expr): Handle STATEMENT_LIST.  Ignore BLOCK
        and OMP_CLAUSE.

2016-04-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/70858
        * config/i386/i386.c (bdesc_special_args): Add | OPTION_MASK_ISA_64BIT
        to __builtin_ia32_lwpval64 and __builtin_ia32_lwpins64.
        (bdesc_args): Add | OPTION_MASK_ISA_64BIT to __builtin_ia32_bextr_u64,
        __builtin_ia32_bextri_u64, __builtin_ia32_bzhi_di,
        __builtin_ia32_pdep_di and __builtin_ia32_pext_di.

2016-04-28  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (compute_save_world_info): Rename info_ptr
        to info.  Don't initialize separate fields to 0.  Clean up
        formatting a bit.

2016-04-28  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (peephole2s for operations with memory inputs):
        Use SWI mode iterator.
        (peephole2s for operations with memory outputs): Ditto.
        Do not check for stack checking probe.

        (probe_stack): Remove expander.

2016-04-28  Joern Rennecke  <joern.rennecke@embecosm.com>
            Andrew Burgess  <andrew.burgess@embecosm.com>

        * config/arc/arc.c (arc_print_operand): Print integer 'H' / 'L'
        operands as 32-bits.

2016-04-28  Jason Merrill  <jason@redhat.com>

        * gdbinit.in: Skip line-map.h.

2016-04-28  Joern Rennecke  <joern.rennecke@embecosm.com>
            Andrew Burgess  <andrew.burgess@embecosm.com>

        * config/arc/arc.c (arc_conditional_register_usage): Take
        TARGET_RRQ_CLASS into account.
        (arc_print_operand): Support printing 'p' and 's' operands.
        * config/arc/arc.h (TARGET_NPS_BITOPS_DEFAULT): Provide default
        as 0.
        (TARGET_RRQ_CLASS): Define.
        (IS_POWEROF2_OR_0_P): Define.
        * config/arc/arc.md (*movsi_insn): Add w/Clo, w/Chi, and w/Cbi
        alternatives.
        (*tst_movb): New define_insn.
        (*tst): Avoid recognition if it could prevent '*tst_movb'
        combination; replace c/CnL with c/Chs alternative.
        (*tst_bitfield_tst): New define_insn.
        (*tst_bitfield_asr): New define_insn.
        (*tst_bitfield): New define_insn.
        (andsi3_i): Add Rrq variant.
        (extzv): New define_expand.
        (insv): New define_expand.
        (*insv_i): New define_insn.
        (*movb): New define_insn.
        (*movb_signed): New define_insn.
        (*movb_high): New define_insn.
        (*movb_high_signed): New define_insn.
        (*movb_high_signed + 1): New define_split pattern.
        (*mrgb): New define_insn.
        (*mrgb + 1): New define_peephole2 pattern.
        (*mrgb + 2): New define_peephole2 pattern.
        * config/arc/arc.opt (mbitops): New option for nps400, uses
        TARGET_NPS_BITOPS_DEFAULT.
        * config/arc/constraints.md (q): Make register class conditional.
        (Rrq): New register constraint.
        (Chs): New constraint.
        (Clo): New constraint.
        (Chi): New constraint.
        (Cbf): New constraint.
        (Cbn): New constraint.
        (C18): New constraint.
        (Cbi): New constraint.

2016-04-28  Segher Boessenkool  <segher@kernel.crashing.org>

        * cfganal.c (bitmap_intersection_of_succs): Delete assert checking
        dst->popcount.
        (bitmap_intersection_of_preds): Ditto.
        (bitmap_union_of_succs): Ditto.
        (bitmap_union_of_preds): Ditto.
        * sbitmap.c (do_popcount): Delete.
        (BITMAP_DEBUGGING): Delete.
        (sbitmap_verify_popcount): Delete.
        (sbitmap_alloc): Don't initialize the popcount field.
        (sbitmap_alloc_with_popcount): Delete.
        (sbitmap_resize): Don't resize the popcount array.
        (sbitmap_vector_alloc): Don't initialize the popcount field.
        (bitmap_copy): Don't copy the popcount array.
        (bitmap_clear): Don't clear the popcount array.
        (bitmap_clear): Delete the popcount array handling.
        (bitmap_ior_and_compl): Delete the popcount assert.
        (bitmap_not): Ditto.
        (bitmap_and_compl): Ditto.
        (bitmap_and): Delete the popcount array handling.
        (bitmap_xor): Ditto.
        (bitmap_ior): Ditto.
        (bitmap_or_and): Delete the popcount assert.
        (bitmap_and_or): Ditto.
        (popcount_table): Delete.
        (sbitmap_elt_popcount): Delete.
        * sbitmap.h (simple_bitmap_def): Delete the popcount field.
        (bitmap_set_bit): Delete the popcount assert.
        (bitmap_clear_bit): Ditto.
        (sbitmap_free): Don't free the popcount array.
        (sbitmap_alloc_with_popcount): Delete declaration.
        (sbitmap_popcount): Ditto.

2016-04-28  Joern Rennecke  <joern.rennecke@embecosm.com>
            Andrew Burgess  <andrew.burgess@embecosm.com>

        * config/arc/arc.h (SYMBOL_FLAG_CMEM): Define.
        (TARGET_NPS_CMEM_DEFAULT): Provide default definition.
        * config/arc/arc.c (arc_address_cost): Return 0 for cmem_address.
        (arc_encode_section_info): Set SYMBOL_FLAG_CMEM where indicated.
        * config/arc/arc.opt (mcmem): New option.
        * config/arc/arc.md (*extendqihi2_i): Add r/Uex alternative,
        supply length for r/m alternative.
        (*extendqisi2_ac): Likewise.
        (*extendhisi2_i): Add r/Uex alternative, supply length for r/m and
        r/Uex alternative.
        (movqi_insn): Add r/Ucm and Ucm/?Rac alternatives.
        (movhi_insn): Likewise.
        (movsi_insn): Add r/Ucm,Ucm/w alternatives.
        (*zero_extendqihi2_i): Add r/Ucm alternative.
        (*zero_extendqisi2_ac): Likewise.
        (*zero_extendhisi2_i): Likewise.
        * config/arc/constraints.md (Uex): New memory constraint.
        (Ucm): New define_constraint.
        * config/arc/predicates.md (long_immediate_loadstore_operand):
        Return 0 for MEM with cmem_address address.
        (cmem_address_0): New predicates.
        (cmem_address_1): Likewise.
        (cmem_address_2): Likewise.
        (cmem_address): Likewise.

2016-04-28  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (machine_function): Rename
        insn_chain_scanned_p to spe_insn_chain_scanned_p.
        (rs6000_stack_info): Adjust.

2016-04-28  Joern Rennecke  <joern.rennecke@embecosm.com>
            Andrew Burgess  <andrew.burgess@embecosm.com>

        * config/arc/constraints.md (Usd): Convert to define_constraint.
        (Us<): Likewise.
        (Us>): Likewise.

2016-04-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/70821
        * config/i386/sync.md (define_peephole2 *atomic_fetch_add_cmp<mode>):
        Add new peephole2 where the first insn is *mov<mode>_or instead of
        *mov<mode>_internal.

2016-04-28  Segher Boesssenkool  <segher@kernel.crashing.org>

        * tracer.c (bb_seen): Make static.

2016-04-28  Andrew Burgess  <andrew.burgess@embecosm.com>

        * common/config/arc/arc-common.c (arc_handle_option): Add NPS400
        support, setup defaults.
        * config/arc/arc-opts.h (enum processor_type): Add NPS400.
        * config/arc/arc.c (arc_init): Add NPS400 support.
        * config/arc/arc.h (CPP_SPEC): Add NPS400 defines.
        (TARGET_ARC700): NPS400 is also an ARC700.
        * config/arc/arc.opt: Add NPS400 options to -mcpu=.

2016-04-28  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/70668
        * config/nds32/nds32.md (casesi): Don't access the operands array
        out of bounds.

2016-04-28  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (zeroing peephole2): Use general_reg_operand.
        (or $-1,reg peephole2): Ditto.
        (strict_low_part zeroing peephole2): Use SWI12 mode iterator.

2016-04-28  Markus Trippelsdorf  <markus@trippelsdorf.de>

        * doc/extend.texi (Common Function Attributes) [optimize]:
        Discourage use of the optimize attribute.

2016-04-28  Bill Seurer  <seurer@linux.vnet.ibm.com>

        * config/rs6000/rs6000-builtin.def (vec_adde): Change vec_adde to a
        special case builtin.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Remove
        ALTIVEC_BUILTIN_VEC_ADDE.
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Add
        support for ALTIVEC_BUILTIN_VEC_ADDE.
        * config/rs6000/rs6000.c (altivec_init_builtins): Add definition
        for __builtin_vec_adde.

2016-04-28  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.md (sse4_1_round<mode>2): Add avx512f alternative.
        * config/i386/sse.md (sse4_1_round<ssescalarmodesuffix>): Likewise.

2016-04-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR testsuite/70595
        * doc/sourcebuild.texi (Effective-Target Keywords, Other
        attributes): Document cilkplus_runtime.

2016-04-28  Martin Jambor  <mjambor@suse.cz>

        * tree-cfg.c (verify_expr): Verify that local declarations belong to
        this function.  Call verify_expr on MEM_REFs and bases of other
        handled_components.

2016-04-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * internal-fn.c (expand_arith_overflow): Convert preprocessor check
        for WORD_REGISTER_OPERATIONS to runtime check.

2016-04-28  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.h (ASM_SPEC): Pass mfpuda to assembler.

2016-04-28  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_process_double_reg_moves): Fix for
        big-endian compilation.
        * config/arc/arc.md (addf3): Likewise.
        (subdf3): Likewise.
        (muldf3): Likewise.

2016-04-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70840
        * match.pd: powi(-x, y) and powi(|x|,y) -> powi(x,y) if y is even;
        Fix pow(copysign(x, y), z) -> pow(x, z) and add powi variant;
        Mark x * pow(x,c) -> pow(x,c+1) commutative.
        Add powi(x,y) * powi(z,y) -> powi(x*z,y).

2015-04-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.h (WORD_REGISTER_OPERATIONS): Define to 0
        and explain why in a comment.

2016-04-28  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (cpu_facility): Add fpx variant.
        (subdf3): Prohibit use reverse sub when assist operations option
        is enabled.
        * config/arc/fpx.md (subdf3_insn, *dsubh_peep2_insn): Allow drsub
        instructions only when FPX is enabled.
        * testsuite/gcc.target/arc/trsub.c: New test.

2016-04-28  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*fop_<mode>_1_mixed): Do not check for
        mult_operator when calculating "type" attribute.
        (*fop_<mode>_1_i387): Ditto.
        (*fop_xf_1_i387): Ditto.
        (x87 stack loads peephole2): Add "reg = op (mem, reg)" peephole2.
        Use std::swap to swap operands.  Use RTL expressions to generate
        converted pattern.

2016-04-28  Claudiu Zissulescu  <claziss@synopsys.com>
            Joern Rennecke  <joern.rennecke@embecosm.com>

        * config/arc/arc-protos.h (arc_legitimize_pic_address): Remove
        declaration.
        (emit_pic_move): Remove.
        (arc_eh_uses, insn_is_tls_gd_dispatch): Declare.
        * config/arc/arc.c (emit_pic_move): Removed.
        (TARGET_HAVE_TLS): Define.
        (arc_conditional_register_usage): Test for arc_tp_regno.
        (arc_print_operand, arc_print_operand_address): Handle TLS
        unspecs.
        (arc_needs_pcl_p): New function.
        (arc_legitimate_pc_offset_p): Use arc_needs_pcl_p.
        (arc_legitimate_pic_addr_p): Handle TLS unspecs.
        (arc_raw_symbolic_reference_mentioned_p): Likewise.
        (arc_get_tp, arc_emit_call_tls_get_addr): New function.
        (arc_legitimize_tls_address): Likewise.
        (DTPOFF_ZERO_SYM): Define.
        (arc_legitimize_pic_address): Make it static, handle TLS cases.
        (arc_output_pic_addr_const): Print TLS unspecs.
        (prepare_pic_move): New function, replaces emit_pic_move.
        (arc_legitimate_constant_p): Handle TLS unspecs.
        (arc_legitimate_address_p): Likewise.
        (arc_rewrite_small_data_p): Use assert for TLS constants.
        (prepare_move_operands): Use prepare_pic_move.
        (arc_legitimize_address): Legitimize tls addresses.
        (arc_epilogue_uses): Check for arc_tp_regno.
        (arc_eh_uses, insn_is_tls_gd_dispatch): New function.
        * config/arc/arc.h [DEFAULT_LIBC != LIBC_UCLIBC] (EXTRA_SPECS):
        Define.
        [DEFAULT_LIBC != LIBC_UCLIBC] (ARC_TLS_EXTRA_START_SPEC):
        Likewise.
        [DEFAULT_LIBC != LIBC_UCLIBC] (STARTFILE_SPEC): Add
        %(arc_tls_extra_start_spec).
        (TARGET_CPU_CPP_BUILTINS): Define __ARC_TLS_REGNO__.
        (REGNO_OK_FOR_BASE_P): Check for arc_tp_regno.
        (EH_USES): Define.
        (INSN_REFERENCES_ARE_DELAYED): Use insn_is_tls_gd_dispatch.
        * config/arc/arc.md (UNSPEC_TLS_GD, UNSPEC_TLS_LD, UNSPEC_TLS_IE)
        (UNSPEC_TLS_OFF): Add.
        (R10_REG): Define.
        (tls_load_tp_soft, tls_gd_load, tls_gd_get_addr, tls_gd_dispatch)
        (get_thread_pointersi): New patterns.
        * config/arc/arc.opt (mtp-regno): New option.
        * config/arc/predicates.md (move_src_operand): Handle TLS symbols.
        (move_dest_operand): Likewise.
        * configure: Regenerate.
        * configure.ac: Add arc*-*-* case to test for tls.
        * doc/invoke.texi (ARC options): Document mtp-regno.

2016-04-28  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_vector_mode_supported_p): Add support for
        the new ARC HS SIMD instructions.
        (arc_preferred_simd_mode): New function.
        (arc_autovectorize_vector_sizes): Likewise.
        (TARGET_VECTORIZE_PREFERRED_SIMD_MODE)
        (TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SIZES): Define.
        (arc_init_reg_tables): Accept new ARC HS SIMD modes.
        (arc_init_builtins): Add new SIMD builtin types.
        (arc_split_move): Handle 64 bit vector moves.
        * config/arc/arc.h (TARGET_PLUS_DMPY, TARGET_PLUS_MACD)
        (TARGET_PLUS_QMACW): Define.
        * config/arc/builtins.def (QMACH, QMACHU, QMPYH, QMPYHU, DMACH)
        (DMACHU, DMPYH, DMPYHU, DMACWH, DMACWHU, VMAC2H, VMAC2HU, VMPY2H)
        (VMPY2HU, VADDSUB2H, VSUBADD2H, VADDSUB, VSUBADD, VADDSUB4H)
        (VSUBADD4H): New builtins.
        * config/arc/simdext.md: Add new ARC HS SIMD instructions.
        * testsuite/gcc.target/arc/builtin_simdarc.c: New file.

2016-04-28  Eduard Sanou  <dhole@openmailbox.org>
            Matthias Klose  <doko@debian.org>

        * doc/cppenv.texi: Document SOURCE_DATE_EPOCH environment variable.

2016-04-28  Richard Biener  <rguenther@suse.de>

        PR middle-end/70777
        * fold-const.c (fold_binary_loc): Remove x*x to pow(x,2.0)
        canonicalization.

2016-04-28  Oleg Endo  <olegendo@gcc.gnu.org>

        * common/config/sh/sh-common.c: Remove SH5 support.
        * config/sh/constraints.md: Likewise.
        * config/sh/config/sh/elf.h: Likewise.
        * config/sh/linux.h: Likewise.
        * config/sh/netbsd-elf.h: Likewise.
        * config/sh/predicates.md: Likewise.
        * config/sh/sh-c.c: Likewise.
        * config/sh/sh-protos.h: Likewise.
        * config/sh/sh.c: Likewise.
        * config/sh/sh.h: Likewise.
        * config/sh/sh.md: Likewise.
        * config/sh/sh.opt: Likewise.
        * config/sh/sync.md: Likewise.
        * config/sh/sh64.h: Delete.
        * config/sh/shmedia.h: Likewise.
        * config/sh/shmedia.md: Likewise.
        * config/sh/sshmedia.h: Likewise.
        * config/sh/t-netbsd-sh5-64: Likewise.
        * config/sh/t-sh64: Likewise.
        * config/sh/ushmedia.h: Likewise.

2016-04-28  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (sign_extend to memory peephole2s): Use
        general_reg_operand instead of register_operand predicate.

2016-04-27  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * params.def (MIN_PARTITION_SIZE): Set default value to 10000.

2016-04-27  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (A - B > A, A + B < A): New transformations.

2016-04-27  Patrick Palka  <ppalka@gcc.gnu.org>

        * genattrtab.c (write_test_expr): New parameter EMIT_PARENS
        which defaults to true.  Emit an outer pair of parentheses only if
        EMIT_PARENS.  When continuing a chain of && or || (or & or |),
        don't emit parentheses for the right-hand operand.

2016-04-27  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (record_temporary_equivalences): Fix typo in comment.

2016-04-27  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/altivec.md (altivec_lvx_<mode>): Remove.
        (altivec_lvx_<mode>_internal): Document.
        (altivec_lvx_<mode>_2op): New define_insn.
        (altivec_lvx_<mode>_1op): Likewise.
        (altivec_lvx_<mode>_2op_si): Likewise.
        (altivec_lvx_<mode>_1op_si): Likewise.
        (altivec_stvx_<mode>): Remove.
        (altivec_stvx_<mode>_internal): Document.
        (altivec_stvx_<mode>_2op): New define_insn.
        (altivec_stvx_<mode>_1op): Likewise.
        (altivec_stvx_<mode>_2op_si): Likewise.
        (altivec_stvx_<mode>_1op_si): Likewise.
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        Expand vec_ld and vec_st during parsing.
        * config/rs6000/rs6000.c (altivec_expand_lvx_be): Commentary
        changes.
        (altivec_expand_stvx_be): Likewise.
        (altivec_expand_lv_builtin): Expand lvx built-ins to expose the
        address-masking behavior in RTL.
        (altivec_expand_stv_builtin): Expand stvx built-ins to expose the
        address-masking behavior in RTL.
        (altivec_expand_builtin): Change builtin code arguments for calls
        to altivec_expand_stv_builtin and altivec_expand_lv_builtin.
        (insn_is_swappable_p): Avoid incorrect swap optimization in the
        presence of lvx/stvx patterns.
        (alignment_with_canonical_addr): New function.
        (alignment_mask): Likewise.
        (find_alignment_op): Likewise.
        (recombine_lvx_pattern): Likewise.
        (recombine_stvx_pattern): Likewise.
        (recombine_lvx_stvx_patterns): Likewise.
        (rs6000_analyze_swaps): Perform a pre-pass to recognize lvx and
        stvx patterns from expand.
        * config/rs6000/vector.md (vector_altivec_load_<mode>): Use new
        expansions.
        (vector_altivec_store_<mode>): Likewise.

2016-04-26  Evandro Menezes  <e.menezes@samsung.com>

        * config/aarch64/aarch64.md
        (*movhf_aarch64): Add "movi %0, #0" to zero up register and
        remove the "fp" attributes.
        (*movsf_aarch64): Add "movi %0, #0" to zero up register and
        add the "simd" attributes.
        (*movdf_aarch64): Likewise.
        (*movtf_aarch64): Remove the "fp" attributes.
        * testsuite/gcc.target/aarch64/fmovf-zero-reg.c: Update accordingly.
        * testsuite/gcc.target/aarch64/fmovd-zero-reg.c: Likewise.

2016-04-27  David Malcolm  <dmalcolm@redhat.com>

        * emit-rtl.c (maybe_set_first_label_num): Strengthen param from
        rtx to rtx_code_label *.
        * rtl.h (maybe_set_first_label_num): Likewise.

2016-04-27  David Malcolm  <dmalcolm@redhat.com>

        * df-core.c (df_add_problem): Make the problem param be const.
        (df_remove_problem): Make local "problem" be const.
        * df-problems.c (problem_RD): Make const.
        (problem_LR): Likewise.
        (problem_LIVE): Likewise.
        (problem_MIR): Likewise.
        (problem_CHAIN): Likewise.
        (problem_WORD_LR): Likewise.
        (problem_NOTE): Likewise.
        (problem_MD): Likewise.
        * df-scan.c (problem_SCAN): Likewise.
        * df.h (struct df_problem): Make field "dependent_problem" be
        const.
        (struct dataflow): Likewise for field "problem".
        (df_add_problem): Make param const.

2016-04-27  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_spill_class): Enable for TARGET_SSE2 when
        inter-unit moves to/from vector registers are enabled.  Do not disable
        for TARGET_MMX.

2016-04-27  David Malcolm  <dmalcolm@redhat.com>

        * df.h (DF_SCAN, DF_LR, DF_LIVE, DF_RD, DF_CHAIN, DF_WORD_LR,
        DF_NOTE, DF_MD, DF_MIR, DF_LAST_PROBLEM_PLUS1): Convert from
        #define to...
        (enum df_problem_id): ...this new enum.
        (struct df_problem): Convert field "id" from "int" to
        enum df_problem_id.

2016-04-27  David Malcolm  <dmalcolm@redhat.com>

        * rtl.def: Update comment for "things in the instruction chain" to
        reflect the removal of the leading "i" field for INSN_UID in
        r210360.  Fix bogus apostrophe.

2016-04-27  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md
        (lea arith with mem operand + setcc peephole2): Set operator mode.

2016-04-27  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/70155
        * config/i386/i386.c (scalar_to_vector_candidate_p): Renamed to ...
        (dimode_scalar_to_vector_candidate_p): This.
        (timode_scalar_to_vector_candidate_p): New function.
        (scalar_to_vector_candidate_p): Likewise.
        (timode_check_non_convertible_regs): Likewise.
        (timode_remove_non_convertible_regs): Likewise.
        (remove_non_convertible_regs): Likewise.
        (remove_non_convertible_regs): Renamed to ...
        (dimode_remove_non_convertible_regs): This.
        (scalar_chain::~scalar_chain): Make it virtual.
        (scalar_chain::compute_convert_gain): Make it pure virtual.
        (scalar_chain::mark_dual_mode_def): Likewise.
        (scalar_chain::convert_insn): Likewise.
        (scalar_chain::convert_registers): Likewise.
        (scalar_chain::add_to_queue): Make it protected.
        (scalar_chain::emit_conversion_insns): Likewise.
        (scalar_chain::replace_with_subreg): Likewise.
        (scalar_chain::replace_with_subreg_in_insn): Likewise.
        (scalar_chain::convert_op): Likewise.
        (scalar_chain::convert_reg): Likewise.
        (scalar_chain::make_vector_copies): Likewise.
        (scalar_chain::convert_registers): New pure virtual function.
        (class dimode_scalar_chain): New class.
        (class timode_scalar_chain): Likewise.
        (scalar_chain::mark_dual_mode_def): Renamed to ...
        (dimode_scalar_chain::mark_dual_mode_def): This.
        (timode_scalar_chain::mark_dual_mode_def): New function.
        (timode_scalar_chain::convert_insn): Likewise.
        (dimode_scalar_chain::convert_registers): Likewise.
        (scalar_chain::compute_convert_gain): Renamed to ...
        (dimode_scalar_chain::compute_convert_gain): This.
        (scalar_chain::replace_with_subreg): Renamed to ...
        (dimode_scalar_chain::replace_with_subreg): This.
        (scalar_chain::replace_with_subreg_in_insn): Renamed to ...
        (dimode_scalar_chain::replace_with_subreg_in_insn): This.
        (scalar_chain::make_vector_copies): Renamed to ...
        (dimode_scalar_chain::make_vector_copies): This.
        (scalar_chain::convert_reg): Renamed to ...
        (dimode_scalar_chain::convert_reg ): This.
        (scalar_chain::convert_op): Renamed to ...
        (dimode_scalar_chain::convert_op): This.
        (scalar_chain::convert_insn): Renamed to ...
        (dimode_scalar_chain::convert_insn): This.
        (scalar_chain::convert): Call convert_registers.
        (convert_scalars_to_vector): Change to scalar_chain pointer to
        use timode_scalar_chain in 64-bit mode and dimode_scalar_chain
        in 32-bit mode.  Delete scalar_chain pointer.  Call
        free_dominance_info in 64-bit mode.
        (pass_stv::gate): Remove TARGET_64BIT check.
        (ix86_option_override): Put the 64-bit STV pass before the CSE
        pass.

2016-04-27  Pierre-Marie de Rodat  <derodat@adacore.com>

        * dwarf2out.h (struct dw_loc_descr_node): Remove the
        dw_loc_frame_offset field.
        * dwarf2out.c (new_loc_descr): Likewise.
        (resolve_args_picking_1): Turn the VISITED hash set into a
        FRAME_OFFSET hash map. Use it to associate a frame offset to
        visited nodes. Remove uses of the CHECKING_P macro.
        (resolve_args_picking): Update call to resolve_args_picking_1.

2016-04-27  Martin Liska  <mliska@suse.cz>

        * tree-ssa-loop-ivopts.c (iv_ca_dump): Fix level of indentation.
        (free_loop_data): Release vuses of groups.

2016-04-27  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (struct iv): Use pointer to struct iv_use
        instead of redundant use_id and boolean have_use_for.
        (struct iv_use): Change sub_id into group_id.  Remove field next.
        Move fields: related_cands, n_map_members, cost_map and selected
        to ...
        (struct iv_group): ... here.  New structure.
        (struct iv_common_cand): Use structure declaration directly.
        (struct ivopts_data, iv_ca, iv_ca_delta): Rename fields.
        (MAX_CONSIDERED_USES): Rename macro to ...
        (MAX_CONSIDERED_GROUPS): ... here.
        (n_iv_uses, iv_use, n_iv_cands, iv_cand): Delete.
        (dump_iv, dump_use, dump_cand): Refactor format of dump information.
        (dump_uses): Rename to ...
        (dump_groups): ... here.  Update all uses.
        (tree_ssa_iv_optimize_init, alloc_iv): Update all uses.
        (find_induction_variables): Refactor format of dump information.
        (record_sub_use): Delete.
        (record_use): Update all uses.
        (record_group): New function.
        (record_group_use, find_interesting_uses_op): Call above functions.
        Update all uses.
        (find_interesting_uses_cond): Ditto.
        (group_compare_offset): New function.
        (split_all_small_groups): Rename to ...
        (split_small_address_groups_p): ... here.  Update all uses.
        (split_address_groups):  Update all uses.
        (find_interesting_uses): Refactor format of dump information.
        (add_candidate_1): Update all uses.  Remove redundant check on iv,
        base and step.
        (add_candidate, record_common_cand): Remove redundant assert.
        (add_iv_candidate_for_biv): Update use.
        (add_iv_candidate_derived_from_uses): Update all uses.
        (add_iv_candidate_for_groups, record_important_candidates): Ditto.
        (alloc_use_cost_map): Ditto.
        (set_use_iv_cost, get_use_iv_cost): Rename to ...
        (set_group_iv_cost, get_group_iv_cost): ... here.  Update all uses.
        (determine_use_iv_cost_generic): Ditto.
        (determine_group_iv_cost_generic): Ditto.
        (determine_use_iv_cost_address): Ditto.
        (determine_group_iv_cost_address): Ditto.
        (determine_use_iv_cost_condition): Ditto.
        (determine_group_iv_cost_cond): Ditto.
        (determine_use_iv_cost): Ditto.
        (determine_group_iv_cost): Ditto.
        (set_autoinc_for_original_candidates): Update all uses.
        (find_iv_candidates): Update all uses.  Refactor dump information.
        (determine_use_iv_costs): Ditto.
        (determine_iv_costs): Ditto.
        (iv_ca_cand_for_use): Rename to ...
        (iv_ca_cand_for_group): ... here.  Update all uses.
        (iv_ca_add_use, iv_ca_add_group): Ditto.
        (iv_ca_set_cp, iv_ca_cost, iv_ca_delta_add): Update all uses.
        (iv_ca_delta_join, iv_ca_delta_reverse, iv_ca_delta_free): Ditto.
        (iv_ca_new, iv_ca_dump, iv_ca_extend, iv_ca_narrow): Ditto.
        (iv_ca_prune, cheaper_cost_with_cand, iv_ca_replace): Ditto.
        (try_add_cand_for, try_improve_iv_set, find_optimal_iv_set): Ditto.
        (create_new_iv, adjust_iv_update_pos): Ditto.
        (rewrite_use_address): Delete.
        (rewrite_use_address_1): Rename to ...
        (rewrite_use_address): ... here.
        (rewrite_use_compare): Update all uses.
        (rewrite_use): Delete.
        (rewrite_uses): Rename to ...
        (rewrite_groups): ... here.  Update all uses.
        (remove_unused_ivs, free_loop_data): Update all uses.
        (tree_ssa_iv_optimize_finalize, tree_ssa_iv_optimize_loop): Ditto.

2016-04-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * rtlanal.c (nonzero_bits1): Convert preprocessor check
        for WORD_REGISTER_OPERATIONS to runtime check.

2016-04-27  Richard Biener  <rguenther@suse.de>

        PR ipa/70760
        * tree-ssa-structalias.c (find_func_aliases_for_call): Use
        aggregate_value_p to determine if a function result is
        returned by reference.
        (ipa_pta_execute): Functions having their address taken are
        not automatically nonlocal.

2016-04-27  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/70683
        * tree-core.h (enum operand_equal_flag): Add OEP_NO_HASH_CHECK.
        * fold-const.c (operand_equal_p): If flag_checking and
        OEP_NO_HASH_CHECK is not set in flag, recurse with OEP_NO_HASH_CHECK
        and if it returns non-zero, assert iterative_hash_expr on both
        args is the same.

2016-04-27  Bernd Schmidt  <bschmidt@redhat.com>

        * doc/invoke.texi (-frename-registers): Also enabled at -Os.

2016-04-27  Nick Clifton  <nickc@redhat.com>

        PR middle-end/49889
        * varasm.c (merge_weak): Generate an error if an attempt is made
        to convert a non-weak static function into a weak, public function.

2016-04-27  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * params.def (MAX_PARTITION_SIZE): New param.
        * doc/invoke.texi: Document lto-max-partition.

2016-04-27  Richard Biener  <rguenther@suse.de>

        PR ipa/70785
        * tree-ssa-structalias.c (refered_from_nonlocal_fn): New
        function cummulating used_from_other_partition, externally_visible
        and force_output from aliases.
        (refered_from_nonlocal_var): Likewise.
        (ipa_pta_execute): Use call_for_symbol_and_aliases to cummulate
        node flags properly.

2016-04-27  Bernd Schmidt  <bschmidt@redhat.com>

        * doc/invoke.texi (Warning Options): Add -Wmemset-elt-size.
        (-Wmemset-elt-size): New item.

2016-04-27  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/70759
        * stor-layout.h (internal_reference_types): Delete.
        * stor-layout.c (reference_types_internal): Likewise.
        (internal_reference_types): Likewise.
        (layout_type) <REFERENCE_TYPE>: Adjust.

2016-04-27  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/70683
        * tree.h (inchash::add_expr): Add FLAGS argument.
        * tree.c (inchash::add_expr): Likewise.  If not OEP_ADDRESS_OF,
        use STRIP_NOPS first.  For INTEGER_CST assert not OEP_ADDRESS_OF.
        For REAL_CST and !HONOR_SIGNED_ZEROS (t) hash +/- 0 the same.
        Formatting fix.  Adjust recursive calls.  For tcc_comparison,
        if swap_tree_comparison (code) is smaller than code, hash that
        and arguments in the other order.  Hash CONVERT_EXPR the same
        as NOP_EXPR.  For OEP_ADDRESS_OF hash MEM_REF with 0 offset
        of ADDR_EXPR of decl as the decl itself.  Add or remove
        OEP_ADDRESS_OF from recursive flags as needed.  For
        FMA_EXPR, WIDEN_MULT_{PLUS,MINUS}_EXPR hash the first two
        operands commutatively and only the third one normally.
        For internal CALL_EXPR hash in CALL_EXPR_IFN.

2016-04-27  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * config/rtems.h (LIB_SPEC): Add -latomic.

2016-04-27  Joel Sherrill  <joel@rtems.org>

        * config/microblaze/rtems.h: Redefine LINK_SPEC to avoid
        xilink.ld and flags not relevant to RTEMS.

2016-04-26  Zhouyi Zhou  <yizhouzhou@ict.ac.cn>

        * toplev.c (backend_init_target): Avoid calling init_reload when using
        LRA.

2016-04-26  Jakub Jelinek  <jakub@redhat.com>

        * reorg.c (try_merge_delay_insns): Declare i and j inside the
        for loops rather than one for the whole function.

2016-04-26  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (X + CST CMP X): New transformation.

2016-04-26  Marc Glisse  <marc.glisse@inria.fr>

        * genmatch.c (write_predicate): Add ATTRIBUTE_UNUSED.
        * fold-const.c (fold_binary_loc): Remove 2 transformations
        superseded by match.pd.
        * match.pd (x+x -> x*2): Generalize to integers.

2016-04-26  Bernd Schmidt  <bschmidt@redhat.com>

        * config/i386/i386.md (operation on memory peephole): Duplicate an
        existing peephole and adapt it to match lea rather than an operation
        that clobbers CC.

        PR rtl-optimization/57193
        * opts.c (default_options_table): Add OPT_frename_registers at -O2
        and above.
        * doc/invoke.texi (-frename-registers, -O2): Update documentation.

2016-04-26  Bin Cheng  <bin.cheng@arm.com>

        * tree-if-conv.c (any_pred_load_store): New static variable.
        (if_convertible_gimple_assign_stmt_p): Remove parameter.  Use
        any_pred_load_store instead of and_mask_load_store.
        (if_convertible_stmt_p, if_convertible_loop_p_1): Ditto.
        (if_convertible_loop_p, insert_gimplified_predicates): Ditto.
        (combine_blocks, tree_if_conversion): Ditto.

2016-04-26  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/70771
        PR tree-optimization/70775
        * tree-if-conv.c (if_convertible_phi_p): Remove check on special
        virtual PHI nodes.  Delete parameter.
        (if_convertible_loop_p_1): Delete argument to above function.
        (predicate_all_scalar_phis): Delete code handling single-argument
        PHIs.
        (tree_if_conversion): Mark and update virtual SSA.

2016-04-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR target/61821
        * config/i386/i386.c (LARGECOMM_SECTION_ASM_OP): Define default.
        (x86_elf_aligned_common): Rename to ...
        (x86_elf_aligned_decl_common): ... this.
        Add decl arg.  Switch to .lbss for largecomm object.  Use
        LARGECOMM_SECTION_ASM_OP.
        * config/i386/i386-protos.h (x86_elf_aligned_common): Reflect
        renaming.
        * config/i386/x86-64.h (ASM_OUTPUT_ALIGNED_COMMON): Rename to ...
        (ASM_OUTPUT_ALIGNED_DECL_COMMON): ... this.
        Pass new decl arg.
        * config/i386/sol2.h (ASM_OUTPUT_ALIGNED_COMMON): Likewise.
        [!USE_GAS] (LARGECOMM_SECTION_ASM_OP): Define.

2016-04-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR target/59407
        * config/i386/i386.c (SECTION_LARGE): Define.
        (x86_64_elf_select_section): Set it for large data/bss sections.
        Only clear SECTION_WRITE for .lrodata.
        (x86_64_elf_section_type_flags): Set SECTION_LARGE for large
        data/bss sections.
        * config/i386/sol2.h (MACH_DEP_SECTION_ASM_FLAG): Define.
        * varasm.c (default_elf_asm_named_section): Grow flagchars.
        [MACH_DEP_SECTION_ASM_FLAG] Emit MACH_DEP_SECTION_ASM_FLAG for
        SECTION_MACH_DEP.
        * doc/tm.texi.in (Sections, MACH_DEP_SECTION_ASM_FLAG): Describe.
        * doc/tm.texi: Regenerate.

2016-04-26  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/70704
        * configure.ac (--enable-checking): Document extra flag, for
        non-release builds default to --enable-checking=yes,extra.
        If misc checking and extra checking, define CHECKING_P to 2 instead
        of 1.
        * common.opt (fchecking=): Add.
        * doc/invoke.texi (-fchecking=): Document.
        * doc/install.texi: Document --enable-checking changes.
        * configure: Regenerated.
        * config.in: Regenerated.

2016-04-25  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*movxi_internal_avx512f): Use insn type
        attribute instead of which_alternative.
        * config/i386/sse.md (*mov<mode>_internal): Ditto.
        Use EXT_REX_SSE_REG_P where appropriate.

2016-04-25  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (const0_operand): Do not match
        const_wide_int code.
        (const1_operand): Ditto.

2016-04-25  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*movoi_internal_avx): Set mode attribute to XI
        for SSE constm1 operands and TARGET_AVX512VL.
        (*movti_internal): Ditto.
        (*mov<mode>_or): Use constm1_operand predicate.
        * config/i386/sse.md (*mov<mode>_internal): Set mode attribute to XI
        for SSE vector_all_ones operands and TARGET_AVX512VL.
        * config/i386/predicates.md (constm1_operand): New predicate.
        * config/i386/i386.c (standard_sse_constant_opcode): Simplify
        emission of constant -1 load.

2016-04-25  Jason Merrill  <jason@redhat.com>

        * gdbinit.in: Skip is-a.h.

        * attribs.c (register_scoped_attributes): Fix logic.
        * attribs.h: Declare register_scoped_attributes.

2016-04-25  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000-builtin.def: Correct pasto error for
        stxvd2x and stxvw4x built-in functions.

2016-04-25  DJ Delorie  <dj@redhat.com>

        * config/msp430/msp430.md (ashlhi3): Optimize one bit shifts.
        (ashrhi3): Likewise.
        (lshrhi3): Likewise.

2016-04-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70780
        * tree-ssa-pre.c (compute_antic_aux): Also return true if the block
        wasn't visited yet.
        (compute_antic): Mark blocks with abnormal preds as visited as
        they have a final empty antic-in solution already.

2016-04-25  Michael Collison  <michael.collison@linaro.org>

        * ChangeLog(2016-04-25): Fix ChangeLog formatting.

2016-04-25  Michael Collison  <michael.collison@linaro.org>

        * config/arm/neon.md (widen_<us>sum<mode>): New patterns where
        mode is VQI to improve mixed mode vectorization.
        * config/arm/neon.md (vec_sel_widen_ssum_lo<VQI:mode><VW:mode>3): New
        define_insn to match low half of signed vaddw.
        * config/arm/neon.md (vec_sel_widen_ssum_hi<VQI:mode><VW:mode>3): New
        define_insn to match high half of signed vaddw.
        * config/arm/neon.md (vec_sel_widen_usum_lo<VQI:mode><VW:mode>3): New
        define_insn to match low half of unsigned vaddw.
        * config/arm/neon.md (vec_sel_widen_usum_hi<VQI:mode><VW:mode>3): New
        define_insn to match high half of unsigned vaddw.
        * config/arm/arm.c (arm_simd_vect_par_cnst_half): New function.
        (arm_simd_check_vect_par_cnst_half_p): Likewise.
        * config/arm/arm-protos.h (arm_simd_vect_par_cnst_half): Prototype
        for new function.
        (arm_simd_check_vect_par_cnst_half_p): Likewise.
        * config/arm/predicates.md (vect_par_constant_high): Support
        big endian and simplify by calling
        arm_simd_check_vect_par_cnst_half
        (vect_par_constant_low): Likewise.

2016-04-25  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*lea<mode>_general_4): Use const_0_to_3_operand
        predicate for operand 2.

2016-04-24  Uros Bizjak  <ubizjak@gmail.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386-protos.h (standard_sse_constant_p): Add
        machine_mode argument.
        * config/i386/i386.c (standard_sse_constant_p): Return 2 for
        constm1_rtx operands.  For VOIDmode constants, get mode from
        pred_mode.  Check mode size if the mode is supported by ABI.
        (standard_sse_constant_opcode): Do not use standard_constant_p.
        Strictly check ABI support for all-ones operands.
        (ix86_legitimate_constant_p): Handle TImode, OImode and XImode
        immediates. Update calls to standard_sse_constant_p.
        (ix86_expand_vector_move): Update calls to standard_sse_constant_p.
        (ix86_rtx_costs): Ditto.
        * config/i386/i386.md (*movxi_internal_avx512f): Use
        nonimmediate_or_sse_const_operand instead of vector_move_operand.
        Use (v,BC) alternative instead of (v,C). Use register_operand
        checks instead of MEM_P.
        (*movoi_internal_avx): Use nonimmediate_or_sse_const_operand instead
        of vector_move_operand.  Add (v,BC) alternative and corresponding avx2
        isa attribute.  Use register_operand checks instead of MEM_P.
        (*movti_internal): Use nonimmediate_or_sse_const_operand for
        TARGET_SSE.  Improve TARGET_SSE insn constraint.  Add (v,BC)
        alternative and corresponding sse2 isa attribute.
        (*movtf_internal, *movdf_internal, *movsf_interal): Update calls
        to standard_sse_constant_p.
        (FP constant splitters): Ditto.
        * config/i386/constraints.md (BC): Do not use standard_sse_constant_p.
        (C): Ditto.
        * config/i386/predicates.md (constm1_operand): Remove.
        (nonimmediate_or_sse_const_operand): Rewrite using RTX.
        * config/i386/sse.md (*<avx512>_cvtmask2<ssemodesuffix><mode>): Use
        vector_all_ones_operand instead of constm1_operand.

2016-04-24  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * print-rtl.c (print_rtx_insn_vec): New function.
        * print-rtl.h: New prototype.
        * store-motion.c (struct st_expr): Make avail_stores a vector.
        (st_expr_entry): Adjust.
        (free_st_expr_entry): Likewise.
        (print_store_motion_mems): Likewise.
        (find_moveable_store): Likewise.
        (compute_store_table): Likewise.
        (delete_store): Likewise.
        (build_store_vectors): Likewise.

2016-04-24  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * reorg.c (try_merge_delay_insns): Make merged_insns a vector.

2016-04-24  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * vec.h (vec_safe_contains): New function.
        (vec::contains): Likewise.
        (vec::begin): Likewise.
        (vec::end): Likewise.

2016-04-23  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/70712
        * cfgexpand.c (expand_stack_vars): Fix typo.

2016-04-22  Szabolcs Nagy  <szabolcs.nagy@arm.com>

        * system.h (list, map, set, vector): Include conditionally.
        * auto-profile.c (INCLUDE_MAP, INCLUDE_SET): Define.
        * graphite-isl-ast-to-gimple.c (INCLUDE_MAP): Define.
        * ipa-icf.c (INCLUDE_LIST): Define.
        * config/aarch64/cortex-a57-fma-steering.c (INCLUDE_LIST): Define.
        * config/sh/sh.c (INCLUDE_VECTOR): Define.
        * config/sh/sh_treg_combine.cc (INCLUDE_ALGORITHM): Define.
        (INCLUDE_LIST, INCLUDE_VECTOR): Define.
        * cp/logic.cc (INCLUDE_LIST): Define.
        * fortran/trans-common.c (INCLUDE_MAP): Define.

2016-04-22  Szabolcs Nagy  <szabolcs.nagy@arm.com>

        * auto-profile.c: Remove <string.h> include.
        * ipa-icf-gimple.c: Remove <list> include.
        * diagnostic.c: Remove <new> include.
        * genmatch.c: Likewise.
        * pretty-print.c: Likewise.
        * toplev.c: Likewise
        * c/c-objc-common.c: Likewise.
        * cp/error.c: Likewise.
        * fortran/error.c: Likewise.

2016-04-22  Richard Biener  <rguenther@suse.de>

        * lto-streamer-in.c (input_ssa_names): Do not allocate
        GIMPLE_NOP for all SSA names.
        * lto-streamer-out.c (output_ssa_names): Do not output
        SSA names that should have been released.

2016-04-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70740
        * tree-ssa-phiprop.c (propagate_with_phi): Handle inserted
        VDEF.

2016-04-21  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/70750
        * config/i386/predicates.md (call_insn_operand): Replace
        sibcall_memory_operand with memory_operand.

2016-04-21  Patrick Palka  <ppalka@gcc.gnu.org>

        * tree-vrp.c (register_edge_assert_for_2): Remove redundant
        has_single_use() tests.
        (register_edge_assert_for_1): Likewise.
        (find_assert_locations_1): Check the liveness bitmap instead of
        checking has_single_use().

2016-04-21  Kirill Yukhin  <kirill.yukhin@intel.com>

        PR target/70728
        * config/i386/sse.md (define_insn "<shift_insn><mode>3<mask_name>"):
        Extract AVX-512BW constraint from AVX.

2016-04-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70725
        * tree-if-conv.c (if_convertible_phi_p): Adjust guard
        for phi_convertible_by_degenerating_args.
        (predicate_all_scalar_phis): Handle single-argument PHIs.

2016-04-21  Richard Biener  <rguenther@suse.de>

        PR middle-end/70747
        * fold-const.c (fold_comparison): Return properly typed
        constant boolean.

2016-04-21  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/70715
        * tree-ssa-loop-niter.c (loop_exits_before_overflow): Check equality
        after expanding BASE using expand_simple_operations.

2016-04-21  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (min(-x, -y), max(-x, -y), min(~x, ~y), max(~x, ~y)):
        New transformations.

2016-04-21  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (min(int_max, x), max(int_min, x)): New transformations.

2016-04-20  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (can_inline_edge_p): Pass caller info to
        ultiimate_alias_target.
        (update_callee_keys): Likewise.
        (lookup_recursive_calls): Likewise.
        (speculation_useful_p): Likewise.

2016-04-20  Jan Hubicka  <jh@suse.cz>

        PR ipa/70018
        * cgraph.c (cgraph_set_nothrow_flag_1): Rename to ...
        (set_nothrow_flag_1): ... this; handle interposition correctly;
        recurse on aliases and thunks.
        (cgraph_node::set_nothrow_flag): New.
        * ipa-pure-const.c (ignore_edge_for_nothrow): Ignore calls to
        functions compiled with non-call exceptions that binds to current
        def.
        (propagate_nothrow): Be safe WRT interposition.
        * cgraph.h (set_nothrow_flag): Update prototype.

2016-04-18  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Use also
        max_loop_iterations_int.
        (tree_unswitch_outer_loop): Likewise.

2016-04-20  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/69489
        * tree-if-conv.c (phi_convertible_by_degenerating_args): New.
        (if_convertible_phi_p): Call phi_convertible_by_degenerating_args.
        Revise dump message.
        (if_convertible_bb_p): Remove check on edge count of basic block's
        predecessors.

2016-04-20  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/56625
        PR tree-optimization/69489
        * tree-data-ref.h (DR_INNERMOST): New macro.
        * tree-if-conv.c (innermost_loop_behavior_hash): New class for
        hashing struct innermost_loop_behavior.
        (ref_DR_map): Remove.
        (innermost_DR_map): New map.
        (baseref_DR_map): Revise comment.
        (hash_memrefs_baserefs_and_store_DRs_read_written_info): Store DR
        to innermost_DR_map accroding to its innermost loop behavior.
        (ifcvt_memrefs_wont_trap): Get DR from innermost_DR_map according
        to its innermost loop behavior.
        (if_convertible_loop_p_1): Remove intialization for ref_DR_map.
        Add initialization for innermost_DR_map.  Record memory reference
        in DR_BASE_ADDRESS if the reference is compound one or it doesn't
        have innermost loop behavior.
        (if_convertible_loop_p): Remove release for ref_DR_map.  Release
        innermost_DR_map.

2016-04-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*lea<mode>_general_1): Rename from
        *lea_general_1.  Use explicit SWI12 mode interator.
        (*lea<mode>_general_2): Rename from *lea_general_2.
        Use explicit SWI12 mode interator.
        (*lea<mode>_general_3): Rename from *lea_general_3.
        Use explicit SWI12 mode interator.
        (*lea<SWI12:mode>_general_4): Split from *lea_general_4.
        Use explicit SWI12 mode interator.
        (*lea<SWI48:mode>_general_4): Split from *lea_general_4.
        Use explicit SWI48 mode interator.

2016-04-20  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_avx256_split_vector_move_misalign):
        Short-cut unaligned load and store cases.  Handle all integer
        vector modes.
        (ix86_expand_vector_move_misalign): Short-cut unaligned load
        and store cases.  Call ix86_avx256_split_vector_move_misalign
        directly without checking mode class.

2016-04-20  Andrew Pinski  <apinski@cavium.com>
            Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/64971
        * config/aarch64/aarch64.md (sibcall): Force call
        address to be DImode for ILP32.
        (sibcall_value): Likewise.

2016-04-20  H.J. Lu  <hongjiu.lu@intel.com>

        * doc/invoke.texi: Replace -skip-rax-setup with -mskip-rax-setup.

2016-04-20  Richard Biener  <rguenther@suse.de>

        * gimple-match.h (maybe_build_generic_op): Adjust prototype.
        * gimple-match-head.c (maybe_build_generic_op): Pass all ops
        by reference, clear op1 and op2 when GENERICizing BIT_FIELD_REF.
        (maybe_push_res_to_seq): Adjust.
        * gimple-fold.c (maybe_build_generic_op): Likewise.

2016-04-20  Marek Polacek  <polacek@redhat.com>

        * tree-if-conv.c (is_false_predicate): For NULL_TREE return false
        rather than true.

2016-04-20  Ilya Enkovich  <ilya.enkovich@intel.com>

        * config/i386/sse.md (vec_unpacks_lo_hi): Always
        use kmovw to support AVX512F target.

2016-04-20  Bin Cheng  <bin.cheng@arm.com>

        * tree-scalar-evolution.c (interpret_rhs_expr): Handle BIT_AND_EXPR.

2016-04-20  Marek Polacek  <polacek@redhat.com>

        PR tree-optimization/70725
        * tree-if-conv.c (is_false_predicate): New function.
        (predicate_mem_writes): Use it.

2016-04-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70726
        * tree-vect-stmts.c (vectorizable_shift): Do not use scalar
        shift amounts from a pattern stmt operand.

2016-04-20  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/70674
        * config/s390/s390.c (s390_restore_gprs_from_fprs): Pick the new
        stack_restore_from_fpr pattern when restoring r15.
        (s390_optimize_prologue): Strip away the memory barrier in the
        parallel when trying to get rid of restore insns.
        * config/s390/s390.md ("stack_restore_from_fpr"): New insn
        definition for loading the stack pointer from an FPR.  Compared to
        the normal move insn this pattern includes a full memory barrier.

2016-04-19  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/70680
        * gimplify.c (gimplify_omp_for): Call omp_notice_variable for
        implicitly linear or lastprivate iterator on the outer context.

2016-04-19  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_legitimate_combined_insn): Remove
        alignment check.
        * config/i386/i386.md (ssememalign): Removed.
        * config/i386/sse.md: Remove ssememalign attribute from patterns.

2016-04-19  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/69201
        * config/i386/avx512bwintrin.h (_mm512_mask_loadu_epi16): Pass
        const short * to __builtin_ia32_loaddquhi512_mask.
        (_mm512_maskz_loadu_epi16): Likewise.
        (_mm512_mask_storeu_epi16): Pass short * to
        __builtin_ia32_storedquhi512_mask.
        (_mm512_mask_loadu_epi8): Pass const char * to
        __builtin_ia32_loaddquqi512_mask.
        (_mm512_maskz_loadu_epi8): Likewise.
        (_mm512_mask_storeu_epi8): Pass char * to
        __builtin_ia32_storedquqi512_mask.
        * config/i386/avx512fintrin.h (_mm512_loadu_pd): Pass
        const double * to __builtin_ia32_loadupd512_mask.
        (_mm512_mask_loadu_pd): Likewise.
        (_mm512_maskz_loadu_pd): Likewise.
        (_mm512_storeu_pd): Pass double * to
        __builtin_ia32_storeupd512_mask.
        (_mm512_mask_storeu_pd): Likewise.
        (_mm512_loadu_ps): Pass const float * to
        __builtin_ia32_loadups512_mask.
        (_mm512_mask_loadu_ps): Likewise.
        (_mm512_maskz_loadu_ps): Likewise.
        (_mm512_storeu_ps): Pass float * to
        __builtin_ia32_storeups512_mask.
        (_mm512_mask_storeu_ps): Likewise.
        (_mm512_mask_loadu_epi64): Pass const long long * to
        __builtin_ia32_loaddqudi512_mask.
        (_mm512_maskz_loadu_epi64): Likewise.
        (_mm512_mask_storeu_epi64): Pass long long *
        to __builtin_ia32_storedqudi512_mask.
        (_mm512_loadu_si512): Pass const int * to
        __builtin_ia32_loaddqusi512_mask.
        (_mm512_mask_loadu_epi32): Likewise.
        (_mm512_maskz_loadu_epi32): Likewise.
        (_mm512_storeu_si512): Pass int * to
        __builtin_ia32_storedqusi512_mask.
        (_mm512_mask_storeu_epi32): Likewise.
        * config/i386/avx512vlbwintrin.h (_mm256_mask_storeu_epi8): Pass
        char * to __builtin_ia32_storedquqi256_mask.
        (_mm_mask_storeu_epi8): Likewise.
        (_mm256_mask_loadu_epi16): Pass const short * to
        __builtin_ia32_loaddquhi256_mask.
        (_mm256_maskz_loadu_epi16): Likewise.
        (_mm_mask_loadu_epi16): Pass const short * to
        __builtin_ia32_loaddquhi128_mask.
        (_mm_maskz_loadu_epi16): Likewise.
        (_mm256_mask_loadu_epi8): Pass const char * to
        __builtin_ia32_loaddquqi256_mask.
        (_mm256_maskz_loadu_epi8): Likewise.
        (_mm_mask_loadu_epi8): Pass const char * to
        __builtin_ia32_loaddquqi128_mask.
        (_mm_maskz_loadu_epi8): Likewise.
        (_mm256_mask_storeu_epi16): Pass short * to.
        __builtin_ia32_storedquhi256_mask.
        (_mm_mask_storeu_epi16): Pass short * to.
        __builtin_ia32_storedquhi128_mask.
        * config/i386/avx512vlintrin.h (_mm256_mask_loadu_pd): Pass
        const double * to __builtin_ia32_loadupd256_mask.
        (_mm256_maskz_loadu_pd): Likewise.
        (_mm_mask_loadu_pd): Pass onst double * to
        __builtin_ia32_loadupd128_mask.
        (_mm_maskz_loadu_pd): Likewise.
        (_mm256_mask_storeu_pd): Pass double * to
        __builtin_ia32_storeupd256_mask.
        (_mm_mask_storeu_pd): Pass double * to
        __builtin_ia32_storeupd128_mask.
        (_mm256_mask_loadu_ps): Pass const float * to
        __builtin_ia32_loadups256_mask.
        (_mm256_maskz_loadu_ps): Likewise.
        (_mm_mask_loadu_ps): Pass const float * to
        __builtin_ia32_loadups128_mask.
        (_mm_maskz_loadu_ps): Likewise.
        (_mm256_mask_storeu_ps): Pass float * to
        __builtin_ia32_storeups256_mask.
        (_mm_mask_storeu_ps): ass float * to
        __builtin_ia32_storeups128_mask.
        (_mm256_mask_loadu_epi64): Pass const long long * to
        __builtin_ia32_loaddqudi256_mask.
        (_mm256_maskz_loadu_epi64): Likewise.
        (_mm_mask_loadu_epi64): Pass const long long * to
        __builtin_ia32_loaddqudi128_mask.
        (_mm_maskz_loadu_epi64): Likewise.
        (_mm256_mask_storeu_epi64): Pass long long * to
        __builtin_ia32_storedqudi256_mask.
        (_mm_mask_storeu_epi64): Pass long long * to
        __builtin_ia32_storedqudi128_mask.
        (_mm256_mask_loadu_epi32): Pass const int * to
        __builtin_ia32_loaddqusi256_mask.
        (_mm256_maskz_loadu_epi32): Likewise.
        (_mm_mask_loadu_epi32): Pass const int * to
        __builtin_ia32_loaddqusi128_mask.
        (_mm_maskz_loadu_epi32): Likewise.
        (_mm256_mask_storeu_epi32): Pass int * to
        __builtin_ia32_storedqusi256_mask.
        (_mm_mask_storeu_epi32): Pass int * to
        __builtin_ia32_storedqusi128_mask.
        * config/i386/i386-builtin-types.def (PCSHORT): New.
        (PINT64): Likewise.
        (V64QI_FTYPE_PCCHAR_V64QI_UDI): Likewise.
        (V32HI_FTYPE_PCSHORT_V32HI_USI): Likewise.
        (V32QI_FTYPE_PCCHAR_V32QI_USI): Likewise.
        (V16SF_FTYPE_PCFLOAT_V16SF_UHI): Likewise.
        (V8DF_FTYPE_PCDOUBLE_V8DF_UQI): Likewise.
        (V16SI_FTYPE_PCINT_V16SI_UHI): Likewise.
        (V16HI_FTYPE_PCSHORT_V16HI_UHI): Likewise.
        (V16QI_FTYPE_PCCHAR_V16QI_UHI): Likewise.
        (V8SF_FTYPE_PCFLOAT_V8SF_UQI): Likewise.
        (V8DI_FTYPE_PCINT64_V8DI_UQI): Likewise.
        (V8SI_FTYPE_PCINT_V8SI_UQI): Likewise.
        (V8HI_FTYPE_PCSHORT_V8HI_UQI): Likewise.
        (V4DF_FTYPE_PCDOUBLE_V4DF_UQI): Likewise.
        (V4SF_FTYPE_PCFLOAT_V4SF_UQI): Likewise.
        (V4DI_FTYPE_PCINT64_V4DI_UQI): Likewise.
        (V4SI_FTYPE_PCINT_V4SI_UQI): Likewise.
        (V2DF_FTYPE_PCDOUBLE_V2DF_UQI): Likewise.
        (V2DI_FTYPE_PCINT64_V2DI_UQI): Likewise.
        (VOID_FTYPE_PDOUBLE_V8DF_UQI): Likewise.
        (VOID_FTYPE_PDOUBLE_V4DF_UQI): Likewise.
        (VOID_FTYPE_PDOUBLE_V2DF_UQI): Likewise.
        (VOID_FTYPE_PFLOAT_V16SF_UHI): Likewise.
        (VOID_FTYPE_PFLOAT_V8SF_UQI): Likewise.
        (VOID_FTYPE_PFLOAT_V4SF_UQI): Likewise.
        (VOID_FTYPE_PINT64_V8DI_UQI): Likewise.
        (VOID_FTYPE_PINT64_V4DI_UQI): Likewise.
        (VOID_FTYPE_PINT64_V2DI_UQI): Likewise.
        (VOID_FTYPE_PINT_V16SI_UHI): Likewise.
        (VOID_FTYPE_PINT_V8SI_UHI): Likewise.
        (VOID_FTYPE_PINT_V4SI_UHI): Likewise.
        (VOID_FTYPE_PSHORT_V32HI_USI): Likewise.
        (VOID_FTYPE_PSHORT_V16HI_UHI): Likewise.
        (VOID_FTYPE_PSHORT_V8HI_UQI): Likewise.
        (VOID_FTYPE_PCHAR_V64QI_UDI): Likewise.
        (VOID_FTYPE_PCHAR_V32QI_USI): Likewise.
        (VOID_FTYPE_PCHAR_V16QI_UHI): Likewise.
        (V64QI_FTYPE_PCV64QI_V64QI_UDI): Removed.
        (V32HI_FTYPE_PCV32HI_V32HI_USI): Likewise.
        (V32QI_FTYPE_PCV32QI_V32QI_USI): Likewise.
        (V16HI_FTYPE_PCV16HI_V16HI_UHI): Likewise.
        (V16QI_FTYPE_PCV16QI_V16QI_UHI): Likewise.
        (V8HI_FTYPE_PCV8HI_V8HI_UQI): Likewise.
        (VOID_FTYPE_PV32HI_V32HI_USI): Likewise.
        (VOID_FTYPE_PV16HI_V16HI_UHI): Likewise.
        (VOID_FTYPE_PV8HI_V8HI_UQI): Likewise.
        (VOID_FTYPE_PV64QI_V64QI_UDI): Likewise.
        (VOID_FTYPE_PV32QI_V32QI_USI): Likewise.
        (VOID_FTYPE_PV16QI_V16QI_UHI): Likewise.
        * config/i386/i386.c (ix86_emit_save_reg_using_mov): Don't
        use UNSPEC_STOREU.
        (ix86_emit_restore_sse_regs_using_mov): Don't use UNSPEC_LOADU.
        (ix86_avx256_split_vector_move_misalign): Don't use unaligned
        load nor store.
        (ix86_expand_vector_move_misalign): Likewise.
        (bdesc_special_args): Use CODE_FOR_movvNXY_internal and pointer
        to scalar function prototype for unaligned load/store builtins.
        (ix86_expand_special_args_builtin): Updated.
        * config/i386/sse.md (UNSPEC_LOADU): Removed.
        (UNSPEC_STOREU): Likewise.
        (VI_ULOADSTORE_BW_AVX512VL): Likewise.
        (VI_ULOADSTORE_F_AVX512VL): Likewise.
        (ssescalarsize): Handle V4TI, V2TI and V1TI.
        (<sse>_loadu<ssemodesuffix><avxsizesuffix><mask_name>): Likewise.
        (*<sse>_loadu<ssemodesuffix><avxsizesuffix><mask_name>): Likewise.
        (<sse>_storeu<ssemodesuffix><avxsizesuffix>): Likewise.
        (<avx512>_storeu<ssemodesuffix><avxsizesuffix>_mask): Likewise.
        (<sse2_avx_avx512f>_loaddqu<mode><mask_name>): Likewise.
        (*<sse2_avx_avx512f>_loaddqu<mode><mask_name>"): Likewise.
        (sse2_avx_avx512f>_storedqu<mode>): Likewise.
        (<avx512>_storedqu<mode>_mask): Likewise.
        (*sse4_2_pcmpestr_unaligned): Likewise.
        (*sse4_2_pcmpistr_unaligned): Likewise.
        (*mov<mode>_internal): Renamed to ...
        (mov<mode>_internal): This.  Remove check of AVX and IAMCU on
        misaligned operand.  Replace vmovdqu64 with vmovdqu<ssescalarsize>.
        (movsd/movhpd to movupd peephole): Don't use UNSPEC_LOADU.
        (movlpd/movhpd to movupd peephole): Don't use UNSPEC_STOREU.

2016-04-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70171
        * tree-ssa-phiprop.c: Include stor-layout.h.
        (phiprop_insert_phi): Handle the aggregate copy case.
        (propagate_with_phi): Likewise.

2016-04-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_decompose_address): Use lowpart_subreg
        instead of simplify_gen_subreg (... , 0).
        (ix86_delegitimize_address): Ditto.
        (ix86_split_divmod): Ditto.
        (ix86_split_copysign_const): Ditto.
        (ix86_split_copysign_var): Ditto.
        (ix86_expand_args_builtin): Ditto.
        (ix86_expand_round_builtin): Ditto.
        (ix86_expand_special_args_builtin): Ditto.
        * config/i386/i386.md (TARGET_USE_VECTOR_FP_CONVERTS splitters): Ditto.
        (TARGET_SSE_PARTIAL_REG_DEPENDENCY splitters and peephole2s): Ditto.
        (udivmodqi4): Ditto.
        (absneg splitters): Ditto.
        (*jcc_bt<mode>_1): Ditto.

2016-04-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70724
        * tree-ssa-sccvn.c (scc_vn_restore_ssa_info): Split SSA info
        restoring out from ...
        (free_scc_vn): ... here.
        * tree-ssa-sccvn.h (scc_vn_restore_ssa_info): Declare.
        * tres-ssa-pre.c (pass_pre::execute): Restore SSA info before
        tail merging.
        (pass_fre::execute): Restore SSA info.

2016-04-19  Richard Biener  <rguenther@suse.de>

        * gimple-walk.h (struct walk_stmt_info): Add stmt member.
        * gimple-walk.c (walk_gimple_op): Initialize it.
        (walk_gimple_asm): Set wi->is_lhs before each callback invocation.
        * tree-inline.c (remap_gimple_op_r): Set SSA_NAME_DEF_STMT when
        remapping SSA names of defs.
        (copy_bb): Remove walk over all SSA defs and SSA_NAME_DEF_STMT
        adjustment.

2016-04-18  Vladimir Makarov  <vmakarov@redhat.com>

        PR middle-end/70689
        * lra-constraints.c (equiv_substition_p): New.
        (process_alt_operands): Use it.
        (swap_operands): Swap it.
        (curr_insn_transform): Update it.

2016-04-18  Michael Matz  <matz@suse.de>

        * tree.h (TYPE_ALIGN, DECL_ALIGN): Return shifted amount.
        (SET_TYPE_ALIGN, SET_DECL_ALIGN): New.
        * tree-core.h (tree_type_common.align): Use bit-field.
        (tree_type_common.spare): New.
        (tree_decl_common.off_align): Make smaller.
        (tree_decl_common.align): Use bit-field.

        * expr.c (expand_expr_addr_expr_1): Use SET_TYPE_ALIGN.
        * omp-low.c (install_var_field): Use SET_DECL_ALIGN.
        (scan_sharing_clauses): Ditto.
        (finish_taskreg_scan): Use SET_DECL_ALIGN and SET_TYPE_ALIGN.
        (omp_finish_file): Ditto.
        * stor-layout.c (do_type_align): Use SET_DECL_ALIGN.
        (layout_decl): Ditto.
        (relayout_decl): Ditto.
        (finalize_record_size): Use SET_TYPE_ALIGN.
        (finalize_type_size): Ditto.
        (finish_builtin_struct): Ditto.
        (layout_type): Ditto.
        (initialize_sizetypes): Ditto.
        * targhooks.c (std_gimplify_va_arg_expr): Use SET_TYPE_ALIGN.
        * tree-nested.c (insert_field_into_struct): Use SET_TYPE_ALIGN.
        (lookup_field_for_decl): Use SET_DECL_ALIGN.
        (get_chain_field): Ditto.
        (get_trampoline_type): Ditto.
        (get_nl_goto_field): Ditto.
        * tree-streamer-in.c (unpack_ts_decl_common_value_fields): Use
        SET_DECL_ALIGN.
        (unpack_ts_type_common_value_fields): Use SET_TYPE_ALIGN.
        * gimple-expr.c (copy_var_decl): Use SET_DECL_ALIGN.
        * tree.c (make_node_stat): Use SET_DECL_ALIGN and SET_TYPE_ALIGN.
        (build_qualified_type): Use SET_TYPE_ALIGN.
        (build_aligned_type, build_range_type_1): Ditto.
        (build_atomic_base): Ditto.
        (build_common_tree_nodes): Ditto.
        * cfgexpand.c (align_local_variable): Use SET_DECL_ALIGN.
        (expand_one_stack_var_at): Ditto.
        * coverage.c (build_var): Use SET_DECL_ALIGN.
        * except.c (init_eh): Ditto.
        * function.c (assign_parm_setup_block): Ditto.
        * symtab.c (increase_alignment_1): Ditto.
        * tree-ssa-ccp.c (fold_builtin_alloca_with_align): Ditto.
        * tree-vect-stmts.c (ensure_base_align): Ditto.
        * varasm.c (align_variable): Ditto.
        (assemble_variable): Ditto.
        (build_constant_desc): Ditto.
        (output_constant_def_contents): Ditto.

        * config/arm/arm.c (arm_relayout_function): Use SET_DECL_ALIGN.
        * config/avr/avr.c (avr_adjust_type_node): Use SET_TYPE_ALIGN.
        * config/mips/mips.c (mips_std_gimplify_va_arg_expr): Ditto.
        * config/msp430/msp430.c (msp430_gimplify_va_arg_expr): Ditto.
        * config/spu/spu.c (spu_build_builtin_va_list): Use SET_DECL_ALIGN.

2016-04-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/70708
        * config/i386/sse.md (sse2_loadlpd): Accept load from "xm" and
        replace %vmovsd with "%vmovq".
        (vec_concatv2df): Likewise.

2016-04-18  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/mmx.md (*vec_extractv2sf_0): Use gen_lowpart.
        (*vec_extractv2si_0): Ditto.
        * config/i386/sse.md (*vec_extractv4sf_0): Ditto.
        (zero_extended_scalar_load_operand splitters): Ditto.
        (vec_extract splitters): Ditto.
        (*vec_extractv4si_0_zext): Ditto.
        (avx_<castmode><avxsizesuffix>_<castmode>): Use gen_lowpart
        and lowpart_subreg.
        (avx512f_<castmode><avxsizesuffix>_<castmode>): Ditto.
        (avx512f_<castmode><avxsizesuffix>_256<castmode>): Ditto.
        (*sse4_1_extractps): Use lowpart_subreg.
        * config/i386/i386.md (x87 floatsplitter): Use gen_lowpart.

2016-04-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, i?86-*-solaris2.10): Update gas and
        gld requirements.
        (Specific, *-*-solaris2*): Update Solaris 11 bundled gcc versions.
        Mention Solaris 11 packaging changes.
        Update gas and gld requirements.
        Remove reference to pre-Solaris 10 bug.
        (Specific, sparc-sun-solaris2*): Remove reference to pre-Solaris 10
        systems and bugs.
        (Specific, sparc64-*-solaris2*): Remove reference to bootstrap
        with cc.

2016-04-17  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-loop-ivopts.c (avg_loop_niter): Use also
        max_loop_iterations_int.

2016-04-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/43434
        * tree-ssa-structalias.c (struct vls_data): New.
        (visit_loadstore): Handle all pointer-based accesses.
        (compute_dependence_clique): Compute a bitmap of restrict tags
        assigned bases and pass it to visit_loadstore.

2016-04-18  Matthew Wahab  <matthew.wahab@arm.com>

        PR target/70711
        * config/arm/bpabi.h (BE8_LINK_SPEC): Add entries for armv8+crc,
        armv8.1-a and armv8.1-a+crc.

2016-04-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70701
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Resolve fully constant
        references after translating through a memcpy.

2016-04-18  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c (postorder, postorder_num): Make locals ...
        (compute_antic): ... here.  For partial antic use regular
        postorder and scrap iteration.
        (compute_partial_antic_aux): Remove unused return value.
        (init_pre): Do not allocate postorder.
        (fini_pre): Do not free postorder.

2016-04-18  Richard Biener  <rguenther@suse.de>

        PR middle-end/37870
        * expmed.c (extract_bit_field_1): Remove broken case
        using a wider MODE_INT mode.

2016-04-18  Segher Boessenkool  <segher@kernel.crashing.org>

        * has-brig.c (lendian16): Don't try to use __builtin_bswap16
        unless compiling with at least GCC-4.8.

2016-04-17  Jan Hubicka  <jh@suse.cz>

        PR bootstrap/70706
        * graphite.c (graphite_finalize): Update call to
        tree_estimate_probability.
        * predict.h (tree_estimate_probability): Update prototype.

2016-04-17  Jan Hubicka  <jh@suse.cz>

        * predict.c (combine_predictions_for_bb): Add dry_run parmaeter.
        (tree_estimate_probability): Likewise.
        (pass_profile::execute): Update.
        (report_predictor_hitrates): New function.
        * profile.c (compute_branch_probabilities): Use it.
        * predict.h (report_predictor_hitrates): Declare.

2016-04-17  Jan Hubicka  <jh@suse.cz>

        PR ipa/70018
        * cgraph.h (cgraph_node::set_const_flag,
        cgraph_node::set_pure_flag): Update prototype to return bool;
        update comment.
        * cgraph.c (cgraph_node::call_for_symbol_thunks_and_aliases): Thunks
        of interposable symbol are interposable, too.
        (cgraph_set_const_flag_1): Rename to ...
        (set_const_flag_1): ... this one; change to self recursive function
        instead of call_for_symbol_thunks_and_aliases. Handle correctly
        clearnig the flag in all variants and also virtual thunks of const
        functions are pure; track if any change was done.
        (cgraph_node::set_const_flag): Update.
        (struct set_pure_flag_info): New struct.
        (cgraph_set_pure_flag_1): Rename to ...
        (set_pure_flag_1): ... this one; take set_pure_flag_info parameter
        rather than pointer encoded flags; track if any changes was done;
        handle correctly clearning flag and setting flag of aliases already
        declared const.
        (cgraph_node::set_pure_flag): Update.
        (cgraph_node::set_nothrow_flag): Handle correctly clearning the flag.

2016-04-17  Tom de Vries  <tom@codesourcery.com>

        PR other/70433
        * pretty-print.c (pp_write_text_as_dot_label_to_stream): Escape
        backslash in label.

2016-04-17  Tom de Vries  <tom@codesourcery.com>

        * pretty-print.c (pp_write_text_as_dot_label_to_stream): Classify chars
        '{}<> ' as escape-for-record.

2016-04-17  Tom de Vries  <tom@codesourcery.com>

        * pretty-print.c (pp_write_text_as_dot_label_to_stream): Simplify loop
        structure.

2016-04-17  Tom de Vries  <tom@codesourcery.com>

        PR other/70185
        * tree-pass.h (class opt_pass): Remove graph_dump_initialized member.
        * dumpfile.h (struct dump_file_info): Add graph_dump_initialized field.
        * dumpfile.c (dump_files): Initialize graph_dump_initialized field.
        * passes.c (finish_optimization_passes): Only call
        finish_graph_dump_file if dfi->graph_dump_initialized.
        (execute_function_dump, pass_init_dump_file): Use
        dfi->graph_dump_initialized instead of pass->graph_dump_initialized.

2016-04-17  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/70256
        * tree-ssa-structalias.c (dump_varinfo, debug_varinfo, dump_varmap)
        (debug_varmap): New function.

2016-04-17  Tom de Vries  <tom@codesourcery.com>

        PR other/70183
        * passes.c (pass_manager::register_pass): Propagate pflags.

2016-04-17  Tom de Vries  <tom@codesourcery.com>

        PR other/68875
        * pass_manager.h (TERMINATE_PASS_LIST): Add pass argument.
        * passes.c (pass_manager::pass_manager): Declare and init p_start in
        INSERT_PASSES_AFTER.  Add pass parameter to TERMINATE_PASS_LIST, and
        check if it's equal to p_start.
        * passes.def: Add arguments to TERMINATE_PASS_LISTs.

2016-04-15  Jan Hubicka  <jh@suse.cz>

        PR ipa/70018
        * cgraph.c (cgraph_set_const_flag_1): Only set as pure if
        function does not bind to current def.
        * ipa-pure-const.c (worse_state): Add FROM and TO parameters;
        handle conservatively calls to functions that does not need to bind
        to current def.
        (check_call): Update call of worse_state.
        (ignore_edge_for_nothrow): Update.
        (ignore_edge_for_pure_const): Likewise.
        (propagate_pure_const): Update calls to worse_state.
        (skip_function_for_local_pure_const): Reformat comments.

2016-04-15  Jan Hubicka  <jh@suse.cz>

        PR ipa/70018
        * cgraph.c (cgraph_node::get_availability): Add REF parameter.
        (cgraph_node::function_symbol): Likewise.
        (cgraph_node::function_or_virtual_thunk_symbol): Likewise.
        * cgraph.h (symtab_node::get_availabbility): Add REF parameter.
        (symtab_node::ultimate_alias_target): Add REF parameter.
        (symtab_node::binds_to_current_def_p): Declare.
        (symtab_node;:ultimate_alias_target_1): Add REF parameter.
        (cgraph_node::function_symbol): Likewise.
        (cgraph_node::function_or_virtual_thunk_symbol): Likewise.
        (cgraph_node::get_availability): Likewise.
        (cgraph_edge::binds_to_current_def_p): New inline function.
        (varpool_node::get_availability): Add REF parameter.
        (varpool_node::ultimate_alias_target): Likewise.
        * symtab.c (symtab_node::ultimate_alias_target_1): Likewise.
        (symtab_node::binds_to_current_def_p): Likewise.
        * varpool.c (varpool_node::get_availability): Likewise.

2016-04-15  Kirill Yukhin  <kirill.yukhin@intel.com>

        PR target/70662
        * config/i386/sse.md(define_insn "<avx512>_vec_dup<mode><mask_name>"):
        Fix mode size check.

2016-04-15  Jakub Jelinek  <jakub@redhat.com>

        * BASE-VER: Set to 7.0.0.

2016-04-15  Alexander Monakov  <amonakov@ispras.ru>

        * config/nvptx/nvptx.opt (moptimize): Add a period at end of help text.

2016-04-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * doc/invoke.texi (ARM Options): Add note on deprecation of pre-ARMv4T
        architecture revisions.

2016-04-15  Bernd Schmidt  <bschmidt@redhat.com>

        * config/i386/i386-protos.h (ix86_using_red_zone): Declare.
        * config/i386/i386.c (ix86_using_red_zone): No longer static.
        * config/i386/i386.md (stack decrement to push peepholes): Guard
        with !x86_using_red_zone ().

2016-04-15  Jakub Jelinek  <jakub@redhat.com>

        PR c++/70675
        * tree-pretty-print.c (do_niy): Add FLAGS argument, pass it down
        to dump_generic_node.
        (NIY): Pass also flags to do_niy.

2016-04-15  Thomas Schwinge  <thomas@codesourcery.com>

        * omp-low.c (simd_clone_struct_alloc, simd_clone_struct_copy)
        (simd_clone_vector_of_formal_parm_types)
        (simd_clone_clauses_extract, simd_clone_compute_base_data_type)
        (simd_clone_mangle, simd_clone_create)
        (simd_clone_adjust_return_type, create_tmp_simd_array)
        (simd_clone_adjust_argument_types, simd_clone_init_simd_arrays)
        (struct modify_stmt_info, ipa_simd_modify_stmt_ops)
        (ipa_simd_modify_function_body, simd_clone_linear_addend)
        (simd_clone_adjust, expand_simd_clones, ipa_omp_simd_clone)
        (pass_data_omp_simd_clone, class pass_omp_simd_clone)
        (pass_omp_simd_clone::gate, make_pass_omp_simd_clone): Move into...
        * omp-simd-clone.c: ... this new file.
        (simd_clone_vector_of_formal_parm_types): Make it static.
        * Makefile.in (OBJS): Add omp-simd-clone.o.

2016-04-15  Kirill Yukhin  <kirill.yukhin@intel.com>

        PR target/70662
        * config/i386/sse.md: Use proper memory operand modifiers.


2016-04-15  Richard Biener  <rguenther@suse.de>
        Alan Modra  <amodra@gmail.com>

        PR tree-optimization/70130
        * tree-vect-data-refs.c (vect_supportable_dr_alignment): Detect
        when alignment stays not the same and no not use the realign
        scheme then.

2016-04-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/70669
        * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add
        direct move handlers for KFmode. Change TFmode handlers test from
        FLOAT128_IEEE_P to FLOAT128_VECTOR_P.

2016-04-14  Jakub Jelinek  <jakub@redhat.com>

        PR c++/70594
        * ipa-utils.h (polymorphic_ctor_dtor_p): New prototype.
        * ipa-polymorphic-call.c (polymorphic_ctor_dtor_p): New function.
        (inlined_polymorphic_ctor_dtor_block_p): Use it.
        * tree-ssa-live.c (remove_unused_scope_block_p): When
        in_ctor_dtor_block, avoid discarding not just BLOCKs with
        BLOCK_ABSTRACT_ORIGIN being FUNCTION_DECL, but even when
        block_ultimate_origin is FUNCTION_DECL.
        (remove_unused_locals): If current_function_decl is
        polymorphic_ctor_dtor_p, pass initial true to
        remove_unused_scope_block_p' is_ctor_dtor_block.

2016-04-14  Martin Sebor  <msebor@redhat.com>

        PR c++/69517
        PR c++/70019
        PR c++/70588
        * doc/extend.texi (Variable Length): Revert.

2016-04-14  Marek Polacek  <polacek@redhat.com>
            Jan Hubicka  <hubicka@ucw.cz>

        PR c++/70029
        * tree.c (verify_type): Disable the canonical type of main variant
        check.

2016-04-14  Jason Merrill  <jason@redhat.com>

        * cfgexpand.c, expr.c: Revert previous change.

2016-04-14  Cesar Philippidis  <cesar@codesourcery.com>

        PR middle-end/70643
        * omp-low.c (lower_oacc_reductions): Check for TREE_CONSTANT
        when building a mem ref for the incoming reduction variable.

2016-04-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70614
        * tree-scalar-evolution.c (analyze_evolution_in_loop): Terminate
        loop if the evolution dropped to chrec_dont_know.
        (interpret_condition_phi): Likewise.

2016-04-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70623
        * tree-ssa-pre.c (changed_blocks): Make global ...
        (compute_antic): ... local here.  Move and fix worklist
        handling here.  Do not clear EDGE_DFS_BACK or call mark_dfs_back_edges.
        (compute_antic_aux): Add dumping for MAX assumed succs.  Remove
        worklist handling, dump when ANTIC_IN changed.
        (compute_partial_antic_aux): Remove worklist handling.
        (init_pre): Do not compute post dominators.  Add a comment about
        the CFG order chosen.
        (fini_pre): Do not free post dominators.

2016-04-13  Martin Sebor  <msebor@redhat.com>

        PR c++/69517
        PR c++/70019
        PR c++/70588
        * doc/extend.texi (Variable Length): Document C++ specifics.

2016-04-13  Jakub Jelinek  <jakub@redhat.com>

        PR c++/70641
        * ipa-pure-const.c (pass_nothrow::execute): Call maybe_clean_eh_stmt
        on all recursive call stmts.  Return TODO_cleanup_cfg if any dead
        eh edges have been purged.

        PR c++/70594
        * tree-sra.c (create_access_replacement,
        get_replaced_param_substitute): Set DECL_NAMELESS on repl if it
        gets fancy name.
        * tree-pretty-print.c (dump_fancy_name): New function.
        (dump_decl_name, dump_generic_node): Use it.

2016-04-13  Jason Merrill  <jason@redhat.com>

        * cfgexpand.c (pass_expand::execute): Handle attribute "abi warning".
        * expr.c (expand_expr_real_1): Likewise.

2016-04-13  Ilya Enkovich  <ilya.enkovich@intel.com>

        * config/i386/i386.md (kunpckhi): Swap operands.
        (kunpcksi): Likewise.
        (kunpckdi): Likewise.
        * config/i386/sse.md (vec_pack_trunc_qi): Likewise.
        (vec_pack_trunc_<mode>): Likewise.

2016-04-13  Jakub Jelinek  <jakub@redhat.com>

        PR debug/70628
        * explow.c (convert_memory_address_addr_space_1): Formatting fix.

        PR middle-end/70633
        * gimplify.c (gimplify_init_constructor): Clear TREE_STATIC if
        gimplification turns some element into non-constant.

        PR debug/70628
        * rtl.h (convert_memory_address_addr_space_1): New prototype.
        * explow.c (convert_memory_address_addr_space_1): No longer static,
        add NO_EMIT argument and don't call convert_modes if true, pass
        it down recursively, remove break after return.
        (convert_memory_address_addr_space): Adjust caller.
        * simplify-rtx.c (simplify_unary_operation_1): Call
        convert_memory_address_addr_space_1 instead of convert_memory_address,
        if it returns NULL, don't simplify.

2016-04-12  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/70630
        * config/sparc/sparc.c (sparc_compute_frame_size): Add parentheses.

2016-04-12  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
        Bump the upper SIMDLEN limits, so that if the return type or
        characteristic type if the return type is void can be passed in
        all available SSE2/AVX/AVX2/AVX512-F registers, the SIMDLEN is
        allowed.

2016-04-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/70640
        * config/rs6000/rs6000.md (ieee_128bit_vsx_neg<mode>2_internal):
        Do not use "=" constraint on an input constraint.
        (ieee_128bit_vsx_abs<mode>2_internal): Likewise.
        (ieee_128bit_vsx_nabs<mode>2_internal): Likewise.
        (ieee_128bit_vsx_nabs<mode>2): Correct splitter so that it
        generates (neg (abs ...)) instead of (abs ...).

2016-04-12  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/70596
        * lra-spills.c (spill_pseudos): Don't delete debug insns, instead
        just invalidate LRA data and reset them.  Adjust dump wording.

2016-04-12  Martin Liska  <mliska@suse.cz>

        Revert
        2016-03-30  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-niter.c (idx_infer_loop_bounds): We can't get realistic
        estimates here.
        * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Use also
        max_loop_iterations_int.
        (tree_unswitch_outer_loop): Likewise.
        * tree-ssa-loop-ivopts.c (avg_loop_niter): Likewise.
        * tree-vect-loop.c (vect_analyze_loop_2): Likewise.

2016-04-12  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/68756
        * graphite-isl-ast-to-gimple.c (copy_cond_phi_args): Use new_expr
        instead of new_name.

2016-04-12  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/70602
        * tree-sra.c (generate_subtree_copies): Don't write anything into
        constant pool decls.

        * omp-low.c (lower_omp_target): Use GOMP_MAP_FIRSTPRIVATE_INT
        regardless whether there are depend clauses or not.

2016-04-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/70381
        * config/rs6000/rs6000.c (rs6000_opt_masks): Disable using the
        target attribute and pragma from changing the -mfloat128
        and -mfloat128-hardware options.

        * doc/extend.texi (Additional Floating Types): Document PowerPC
        __float128 restrictions.

2016-04-11  James Greenhalgh  <james.greenhalgh@arm.com>

        PR target/70133
        * config/aarch64/driver-aarch64.c
        (aarch64_get_extension_string_for_isa_flags): New.
        (arch_extension): Rename to...
        (aarch64_arch_extension): ...This.
        (ext_to_feat_string): Rename to...
        (aarch64_extensions): ...This.
        (aarch64_core_data): Keep track of architecture extension flags.
        (cpu_data): Rename to...
        (aarch64_cpu_data): ...This.
        (aarch64_arch_driver_info): Keep track of architecture extension
        flags.
        (get_arch_name_from_id): Rename to...
        (get_arch_from_id): ...This, change return type.
        (host_detect_local_cpu): Update and reformat for renames, handle
        extensions through common infrastructure.

2016-04-11  James Greenhalgh  <james.greenhalgh@arm.com>

        PR target/70133
        * config/aarch64/aarch64-common.c (aarch64_option_extension): Keep
        track of a canonical flag name.
        (all_extensions): Likewise.
        (arch_to_arch_name): Also track extension flags enabled by the arch.
        (all_architectures): Likewise.
        (aarch64_parse_extension): Move to here.
        (aarch64_get_extension_string_for_isa_flags): Take a new argument,
        rework.
        (aarch64_rewrite_selected_cpu): Update for above change.
        * config/aarch64/aarch64-option-extensions.def: Rework the way flags
        are handled, such that the single explicit value enabled by an
        extension is kept seperate from the implicit values it also enables.
        * config/aarch64/aarch64-protos.h (aarch64_parse_opt_result): Move
        to here.
        (aarch64_parse_extension): New.
        * config/aarch64/aarch64.c (aarch64_parse_opt_result): Move from
        here to config/aarch64/aarch64-protos.h.
        (aarch64_parse_extension): Move from here to
        common/config/aarch64/aarch64-common.c.
        (aarch64_option_print): Update.
        (aarch64_declare_function_name): Likewise.
        (aarch64_start_file): Likewise.
        * config/aarch64/driver-aarch64.c (arch_extension): Keep track of
        the canonical flag for extensions.
        * config.gcc (aarch64*-*-*): Extend regex for capturing extension
        flags.

2016-04-11  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64.h (AARCH64_FL_FOR_ARCH8_1): Also add
        AARCH64_FL_CRC.

2016-04-09  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/68953
        * graphite-sese-to-poly.c (pdr_add_memory_accesses): Order accesses from
        first to last subscript.

2016-04-09  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/70586
        * tree-ssa-ifcombine.c (bb_no_side_effects_p): Return false
        for any calls.

2016-04-08  Cesar Philippidis  <cesar@codesourcery.com>

        PR lto/70289
        PR ipa/70348
        PR tree-optimization/70373
        PR middle-end/70533
        PR middle-end/70534
        PR middle-end/70535
        * gimplify.c (gimplify_adjust_omp_clauses): Add or adjust data
        clauses for acc parallel reductions as necessary.  Error on those
        that are private.
        * omp-low.c (scan_sharing_clauses): Don't install variables which
        are used in acc parallel reductions.
        (lower_rec_input_clauses): Remove dead code.
        (lower_oacc_reductions): Add support for reference reductions.
        (lower_reduction_clauses): Remove dead code.
        (lower_omp_target): Don't remap variables appearing in acc parallel
        reductions.
        * tree.h (OMP_CLAUSE_MAP_IN_REDUCTION): New macro.

2016-04-08  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/70593
        * tree-ssa-coalesce.c (build_ssa_conflict_graph): For stmt
        with multiple SSA_NAME defs, force the outputs other than first
        to be live before calling live_track_process_def on each output.

        PR rtl-optimization/70574
        * fwprop.c (forward_propagate_and_simplify): Don't add
        REG_EQUAL note if DF_REF_REG (use) is a paradoxical subreg.
        (try_fwprop_subst): Don't add REG_EQUAL note if there are any
        paradoxical subregs within *loc.

2016-04-08  Thomas Schwinge  <thomas@codesourcery.com>

        * config/arc/arc.h (LINK_COMMAND_SPEC): Use gt to ignore
        -ftree-parallelize-loops={0,1}.
        * config/darwin.h (LINK_COMMAND_SPEC_A): Likewise.
        * config/i386/mingw32.h (GOMP_SELF_SPECS): Likewise.
        * config/ia64/hpux.h (LIB_SPEC): Likewise.
        * config/pa/pa-hpux11.h (LIB_SPEC): Likewise.
        * config/pa/pa64-hpux.h (LIB_SPEC): Likewise.

2016-04-08  Maxim Ostapenko  <m.ostapenko@samsung.com>

        PR sanitizer/70541
        * asan.c (instrument_derefs): If we get unknown location, extract it
        with EXPR_LOCATION.
        (maybe_instrument_call): Instrument gimple_call's arguments if needed.

2016-04-08  Tom de Vries  <tom@codesourcery.com>

        * omp-low.c (lower_omp_target): Set TREE_NO_WARNING for oacc
        implicit firstprivate clause.

2016-04-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/70566
        * config/arm/thumb2.md (tst + branch-> lsls + branch
        peephole below *orsi_not_shiftsi_si): Require that condition
        register is dead after the peephole.
        (second peephole after the above): Likewise.

2016-04-08  Alan Modra  <amodra@gmail.com>

        PR target/70117
        * builtins.c (fold_builtin_classify): For IBM extended precision,
        look at just the high-order double to test for NaN.
        (fold_builtin_interclass_mathfn): Similarly for Inf.  For isnormal
        test just the high double for Inf but both doubles for subnormal
        limit.

2016-04-07  Jakub Jelinek  <jakub@redhat.com>

        * cgraph.h (struct cgraph_simd_clone): Add mask_mode field.
        * omp-low.c (simd_clone_init_simd_arrays, simd_clone_adjust): Handle
        node->simdclone->mask_mode != VOIDmode masks.
        (simd_clone_adjust_argument_types): Likewise.  Move sc var definition
        earlier, use it instead of node->simdclone.
        * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
        Set clonei->mask_mode.

2016-04-06  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c/70436
        * parser.c (cp_parser_iteration_statement): New parameter IF_P.
        Pass it through to cp_parser_already_scoped_statement.
        (cp_parser_already_scoped_statement): New parameter IF_P.  Pass
        it through to cp_parser_statement.
        (cp_parser_statement): Pass IF_P through to
        cp_parser_iteration_statement.
        (cp_parser_pragma): Adjust call to
        cp_parser_iteration_statement.

2016-04-06  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c/70436
        * gimplify.c (gimplify_omp_ordered): Add explicit braces to
        resolve a future -Wparentheses warning.
        * omp-low.c (scan_sharing_clauses): Likewise.
        * tree-parloops.c (eliminate_local_variables): Likewise.

2016-04-06  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/70398
        * lra-constraints.c (process_address_1): Check zero scale and code
        for reloading with zero scale.

2016-04-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (shuffletype): Add V32HI and V4TI modes.
        (ssescalarsize): Add V8SF, V4SF, V4DF and V2DF modes.

2016-04-06  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
        Add support for AVX512F clones, include them by default for
        exported OpenMP declare simd functions.  For AVX2 allow simdlen 32
        and use it if charasteric type is 8-bit, for AVX512F allow simdlen
        up to 128.

        PR middle-end/70550
        * tree.h (OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT): Define.
        * gimplify.c (gimplify_adjust_omp_clauses_1): Set it for implicit
        firstprivate clauses.
        * omp-low.c (lower_send_clauses): Set TREE_NO_WARNING for
        OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT !by_ref vars in task contexts.
        (lower_omp_target): Set TREE_NO_WARNING for
        non-addressable possibly uninitialized vars which are copied into
        addressable temporaries or copied for GOMP_MAP_FIRSTPRIVATE_INT.

2016-04-05  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/predicates.md (integer_store_memory_operand): Accept
        REG+D operands with a large offset when reload_in_progress is true.
        (floating_point_store_memory_operand): Likewise.

2016-04-05  Jakub Jelinek  <jakub@redhat.com>

        PR c++/70336
        * match.pd (nested int casts): Limit to GIMPLE.

2016-04-05  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/66223
        * ipa-devirt.c (maybe_record_node): Fix comment; use
        SANITIZE_UNREACHABLE instead of SANITIZE_UNDEFINED.

2016-04-05  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/70542
        * ree.c (add_removable_extension): For VECTOR_MODE_P punt
        if there are any uses other than insn or debug insns.

2016-04-05  Marc Glisse  <marc.glisse@inria.fr>
            Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/70509
        * simplify-rtx.c (simplify_binary_operation_1) <case VEC_SELECT>:
        Shift HOST_WIDE_INT_1U instead of 1.

2016-04-05  Zdenek Sojka  <zsojka@seznam.cz>

        PR tree-optimization/70509
        * tree-ssa-forwprop.c (simplify_bitfield_ref): Use bitsize_int instead
        of the vector base type for index.

2016-04-05  Uros Bizjak  <ubizjak@gmail.com>

        PR target/70510
        * config/i386/sse.md (iptr): Add V64QI, V32HI, V16SI and V8DI modes.

2016-04-05  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70526
        * tree-sra.c (build_ref_for_offset): Use prev_base to
        extract the alias pointer type.

2016-04-05  Richard Biener  <rguenther@suse.de>

        * dse.c (struct store_info): Remove alias_set member.
        (struct read_info_type): Likewise.
        (clear_alias_group, clear_alias_mode_table, clear_alias_mode_holder,
        spill_deleted, clear_alias_set_lookup): Remove.
        (get_group_info): Remove dead base == NULL_RTX case.
        (dse_step0): Remove initialization of removed variables.
        (delete_dead_store_insn): Reomve alias set dumping.
        (free_read_records): Remove alias_set handling.
        (canon_address): Remove alias_set_out parameter.
        (record_store): Remove spill_alias_set, it's always zero.
        (check_mem_read_rtx): Likewise.
        (dse_step2): Rename from ...
        (dse_step2_nospill): ... this.  Adjust.
        (scan_stores): Rename from ...
        (scan_stores_nospill): ... this.
        (scan_reads): Rename from ...
        (scan_reads_nospill): ... this.
        (scan_stores_spill, scan_reads_spill): Remove.
        (dse_step3_scan): Remove for_spills argument which is always false.
        (dse_step3): Likewise.
        (dse_step5): Rename from ...
        (dse_step5_nospill): ... this.  Remove alias_set handling.
        (rest_of_handle_dse): Adjust.

2016-04-05  Jakub Jelinek  <jakub@redhat.com>

        PR target/70525
        * config/i386/sse.md (*andnot<mode>3): Simplify assertions.
        Use vpandn<ssemodesuffix> for V16SI/V8DImode, vpandnq for
        V32HI/V64QImode, don't use <mask_operand3_1>, fix up formatting.
        (*andnot<mode>3_mask): Remove insn with VI12_AVX512VL iterator.

2016-04-05  Richard Biener  <rguenther@suse.de>

        PR middle-end/70499
        * gimplify-me.c (gimple_regimplify_operands): Do not rewrite
        non-register type temporaries into SSA.

2016-04-04  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/66223
        * ipa-devirt.c (maybe_record_node): Do not optimize cxa_pure_virtual
        calls when sanitizing.
        (possible_polymorphic_call_target_p): Fix formatting.

2016-04-04  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/70457
        * tree-inline.c (estimate_num_insn): Use gimple_call_builtin_p
        to ensure a call statement is compatible with a built-in's
        prototype.
        * tree-ssa-math-opts.c (pass_optimize_windening_mul::execute):
        Likewise.

2016-04-04  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/70484
        * rtl.h (canon_output_dependence): Declare.
        * alias.c (canon_output_dependence): New function.
        * dse.c (record_store): Use canon_output_dependence rather
        than canon_true_dependence.

2016-03-30  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/68881
        * cgraph.h (symtab_node::copy_visibility_from): New function.
        * symtab.c (symtab_node::copy_visibility_from): New function.
        * ipa-visibility.c (optimize_weakref): New function.
        (function_and_variable_visibility): Use it.

2016-04-04  Martin Liska  <mliska@suse.cz>

        PR hsa/70402
        * hsa-gen.c (gen_hsa_insns_for_switch_stmt): Guard index
        value that is really in range handled by SBR instruction.
        * hsa-brig.c (emit_switch_insn): Do not emit unconditional jump.
        * hsa-dump.c (dump_hsa_insn_1): Do not dump default BB.
        * hsa.h (hsa_insn_sbr::m_default_bb): Remove field.

2016-04-03  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/70416
        PR target/67391
        * config/sh/sh.md (*addsi3): Allow pattern when reload_in_progress is
        set, but not for SP_REG operands.

2016-04-02  Martin Sebor  <msebor@redhat.com>

        PR c++/67376
        * fold-const.c (maybe_nonzero_address): New function.
        (fold_comparison): Call it.  Fold equality and relational
        expressions involving null pointers.
        (tree_single_nonzero_warnv_p): Call maybe_nonzero_address.

2016-03-31  Evandro Menezes  <e.menezes@samsung.com>

        Fix the predicate "aarch64_simd_reg_or_zero" to correctly validate
        the "Y" constraint (scalar FP 0.0 immediate).

        * config/aarch64/predicates.md (aarch64_simd_reg_or_zero):
        Add the "const_double" to the list of operand constraints.

2016-04-01  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/70467
        * config/i386/i386.md (*add<dwi>3_doubleword, *sub<dwi>3_doubleword):
        If low word of the last operand is 0, just emit addition/subtraction
        for the high word.

2016-04-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/70404
        * config/s390/s390.c (s390_expand_insv): Check for everything
        constant instead of just VOIDmode stuff.

2016-04-01  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        PR target/70496
        * config/arm/arm.h (ASM_APP_OFF): Handle TARGET_ARM and TARGET_THUMB.

2016-04-01  Nathan Sidwell  <nathan@acm.org>

        * tree.def (TRY_CATCH_EXPR): Correct documentation.

2016-03-31  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/70461
        * ira-color.c (allocno_copy_cost_saving): Use allocno class if it
        is necessary.

2016-03-31  Martin Liska  <mliska@suse.cz>

        PR hsa/70399
        * hsa-brig.c (hsa_op_immed::emit_to_buffer): Emit either
        a tree value or an immediate integer value to a buffer
        that is eventually copied to a BRIG section.
        (emit_immediate_operand): Call the function here.
        * hsa-dump.c (dump_hsa_immed): Remove checking assert.
        * hsa-gen.c (hsa_op_immed::hsa_op_immed): Remove initialization
        of class' fields that are removed.
        (hsa_op_immed::~hsa_op_immed): Remove deinitialization.
        * hsa.h (class hsa_op_immed): Remove m_brig_repr and
        m_brig_repr_size fields.

2016-03-31  Martin Liska  <mliska@suse.cz>

        PR hsa/70391
        * hsa-gen.c (hsa_function_representation::update_dominance): New
        function.
        (convert_addr_to_flat_segment): Likewise.
        (gen_hsa_memory_set): New alignment argument.
        (gen_hsa_ctor_assignment): Likewise.
        (gen_hsa_insns_for_single_assignment): Provide alignment
        to gen_hsa_ctor_assignment.
        (gen_hsa_insns_for_direct_call): Add new argument.
        (expand_lhs_of_string_op): New function.
        (expand_string_operation_builtin): Likewise.
        (expand_memory_copy): New function.
        (expand_memory_set): New function.
        (gen_hsa_insns_for_call): Use HOST_WIDE_INT.
        (convert_switch_statements): Change signature.
        (generate_hsa): Use a return value of the function.
        (pass_gen_hsail::execute): Do not call
        convert_switch_statements here.
        * hsa-regalloc.c (hsa_regalloc): Call update_dominance.
        * hsa.h (hsa_function_representation::m_modified_cfg): New flag.
        (hsa_function_representation::update_dominance): New function.

2016-03-31  Martin Liska  <mliska@suse.cz>

        PR hsa/70391
        * hsa-brig.c (emit_directive_variable): Emit alignment
        according to hsa_symbol::m_align.
        * hsa-dump.c (hsa_byte_alignment): Move the function to another file.
        (dump_hsa_symbol): Dump alignment of HSA symbols.
        * hsa-gen.c (get_symbol_for_decl): Set-up alignment of a symbol.
        (gen_hsa_addr_with_align): New function.
        (hsa_bitmemref_alignment): Use newly added function.
        (gen_hsa_insns_for_load): Likewise.
        (gen_hsa_insns_for_store): Likewise.
        (gen_hsa_memory_copy): New argument added.
        (gen_hsa_insns_for_single_assignment): Respect
        alignment for assignments processed via gen_hsa_memory_copy.
        (gen_hsa_insns_for_direct_call): Likewise.
        (gen_hsa_insns_for_return): Likewise.
        (gen_function_def_parameters): Set default alignment.
        * hsa.c (hsa_object_alignment): New function.
        (hsa_byte_alignment): Pasted function.
        * hsa.h (hsa_symbol::m_align): New field.

2016-03-31  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (get_computation_cost_at): Initialize
        scratch field for goto case.

2016-03-31  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/arm/linux-elf.h (ASM_OUTPUT_DEF): Delete.

2016-03-31  Ilya Enkovich  <enkovich.gnu@gmail.com>

        PR target/70442
        * config/i386/i386.c (scalar_chain::convert_op): Fix description.
        (scalar_chain::convert_insn): Call convert_op for reg
        moves to handle undefined registers.

2016-03-31  Nathan Sidwell  <nathan@acm.org>

        PR c++/70393
        * varasm.c (output_constructor_regular_field): Flush bitfield earlier.
        Assert we don't want to move backwards.

2016-03-31  Kirill Yukhin  <kirill.yukhin@intel.com>

        PR target/70453
        * config/i386/sse.md (define_mode_attr shuffletype): Fix typo.

2016-03-31  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/70460
        * ira.c (indirect_jump_optimize): Don't substitute LABEL_REF
        with operand from REG_LABEL_OPERAND, instead substitute
        SET_SRC or REG_EQUAL note content if it is a LABEL_REF.
        Don't do anything for REG_NON_LOCAL_GOTO jumps.

2016-03-31  Martin Liska  <mliska@suse.cz>

        * passes.c (execute_one_pass): Do not call
        todo_after for a discarded function.

2016-03-31  Bin Cheng  <bin.cheng@arm.com>

        * tree-ssa-loop-ivopts.c (struct comp_cost): New scrach field.
        (no_cost, infinite_cost): Initialize the new field.
        (get_computation_cost_at): Record setup cost.
        (determine_use_iv_cost_address): Skip cost computation for sub
        uses if we can estimate it without losing accuracy.

2016-03-30  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-niter.c (idx_infer_loop_bounds): We can't get realistic
        estimates here.
        * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Use also
        max_loop_iterations_int.
        (tree_unswitch_outer_loop): Likewise.
        * tree-ssa-loop-ivopts.c (avg_loop_niter): Likewise.
        * tree-vect-loop.c (vect_analyze_loop_2): Likewise.

2016-03-30  Richard Biener  <rguenther@suse.de>

        PR middle-end/70450
        * fold-const.c (extract_muldiv_1): Fix thinko in wide_int::from usage.

2016-03-30  Jakub Jelinek  <jakub@redhat.com>

        PR target/70421
        * config/i386/i386.c (ix86_expand_vector_set): Fix up argument order
        in gen_blendm expander.

2016-03-30  Nick Clifton  <nickc@redhat.com>

        PR target/62254
        * config/arm/arm.c (arm_reload_out_hi): Add code to handle the
        case where we are already provided with an SImode SUBREG.

2016-03-30  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/70439
        * config/i386/i386.c (ix86_expand_epilogue): Properly check
        conflict between DRAP register and __builtin_eh_return.

2016-03-30  Michael Matz  <matz@suse.de>
            Richard Biener  <rguenther@suse.de>

        PR ipa/12392
        * ipa-polymorphic-call.c (struct type_change_info): Change
        speculative to an unsigned allowing to limit the work we do.
        (csftc_abort_walking_p): New inline function..
        (check_stmt_for_type_change): Limit the number of may-defs
        skipped for speculative devirtualization to
        max-speculative-devirt-maydefs.
        * params.def (max-speculative-devirt-maydefs): New param.
        * doc/invoke.texi (--param max-speculative-devirt-maydefs): Document.

2016-03-30  Mike Stump  <mrs@gcc.gnu.org>

        PR target/63890
        * config/i386/i386.h (ACCUMULATE_OUTGOING_ARGS): Use when profiling
        and TARGET_MACHO.

2016-03-30  Patrick Palka  <ppalka@gcc.gnu.org>

        PR tree-optimization/59124
        * tree-vrp.c (register_edge_assert_for_2): For NAME != CST1
        where NAME = A +- CST2 add the assertion A != (CST1 -+ CST2).

2016-03-29  Jeff Law  <law@redhat.com>

        * tree-ssa-coalesce.c (struct ssa_conflicts): Fix typo in comment.

2016-03-10  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-loop-ivcanon.c (try_peel_loop): Change type of peel
        to HOST_WIDE_INT.

2016-03-29  Thomas Schwinge  <thomas@codesourcery.com>

        * config/gnu.h (CPP_SPEC, LIB_SPEC): Don't override.
        * config/i386/gnu.h (STARTFILE_SPEC): Use gcrt1.o instead of
        gcrt0.o if linking dynamically.

2016-03-10  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/70283
        * ipa-devirt.c (methods_equal_p): New function.
        (compare_virtual_tables): Use it.
        * cgraph.h (symbol_table::symbol_suffix_separator): Declare.
        * cgraphclones.c (clone_function_name_1): Use
        symbol_table::symbol_suffix_separator.
        * coverage.c (build_var): Likewise.
        * symtab.c (symbol_table::symbol_suffix_separator): New.

2016-03-29  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/70429
        * combine.c (simplify_shift_const_1): For ASHIFTRT don't optimize
        (cst1 >> count) >> cst2 into (cst1 >> cst2) >> count if
        mode != result_mode.

        PR c++/70353
        * tree-inline.c (remap_decls): Don't add_local_decl if cfun is null.

        PR tree-optimization/70405
        * ssa-iterators.h (num_imm_uses): Add missing braces.

2016-03-29  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/68695
        * ira-color.c (allocno_copy_cost_saving): New.
        (improve_allocation): Use it.

2016-03-29  Richard Henderson  <rth@redhat.com>

        PR middle-end/70355
        * lower-subreg.c (simplify_subreg_concatn): Reject paradoxical subregs.

2016-03-29  Richard Biener  <rguenther@suse.de>

        PR middle-end/70424
        * ipa-prop.c (ipa_compute_jump_functions_for_edge): Always
        use alignment returned by get_pointer_alignment_1 if it is
        bigger than BITS_PER_UNIT.
        * builtins.c (get_pointer_alignment_1): Do not return true
        for alignment extracted from SSA info.

2016-03-28  James Bowman  <james.bowman@ftdichip.com>

        * config/ft32/ft32.opt (mnodiv): New.
        * config/ft32/ft32.md (*divsi3, *modsi3): Qualify with TARGET_NODIV.
        * doc/invoke.texi (FT32 Options -mnodiv): New.

2016-03-28  Kirill Yukhin  <kirill.yukhin@intel.com>

        PR target/70406
        * config/i386/i386.md (define_split, andn): Fix modes.

2016-03-26  Richard Biener  <rguenther@suse.de>
            Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR ipa/70366
        * ipa-inline-transform.c (inline_call): Pass opts_for_fn (to->decl)
        instead of
        TREE_OPTIMIZATION (DECL_FUNCTION_SPECIFIC_OPTIMIZATION (to->decl))
        as 2nd argument to cl_optimization_restore().

2016-03-25  Richard Henderson  <rth@redhat.com>

        PR target/70120
        * config/aarch64/aarch64.c (aarch64_asm_output_pool_epilogue): New.
        * config/aarch64/aarch64-protos.h: Declare it.
        * config/aarch64/aarch64.h (ASM_OUTPUT_POOL_EPILOGUE): New.

2016-03-25  Alan Modra  <amodra@gmail.com>

        PR target/70052
        * config/rs6000/constraints.md (j): Simplify.
        * config/rs6000/predicates.md (easy_fp_constant): Exclude
        decimal float 0.D.
        * config/rs6000/rs6000.md (zero_fp): New mode_attr.
        (mov<mode>_hardfloat, mov<mode>_hardfloat32, mov<mode>_hardfloat64,
         mov<mode>_64bit_dm, mov<mode>_32bit): Use zero_fp in place of j
        in all constraint alternatives.
        (movtd_64bit_nodm): Delete "j" constraint alternative.

2016-03-24  Aldy Hernandez  <aldyh@redhat.com>

        * tree-ssa-propagate.c: Enhance docs for
        SSA_PROP_NOT_INTERESTING.

2016-03-24  Aldy Hernandez  <aldyh@redhat.com>

        * doc/extend.texi: Fix typo in documentation to pure attribute.

2016-03-24  John David Anglin  <danglin@gcc.gnu.org>

        PR target/70319
        * config/pa/pa.md (bswapdi2): Use a scratch register.

2016-03-24  Richard Henderson  <rth@redhat.com>

        PR middle-end/69845
        * fold-const.c (extract_muldiv_1): Correct test for multiplication
        overflow.

2016-03-24  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*anddi3_doubleword): Generate AND insn
        using ix86_expand_binary_operator instead of gen_andsi3.

2016-03-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70396
        * tree-vect-stmts.c (vectorizable_comparison): Use
        get_vectype_for_scalar_type.

2016-03-24  Richard Biener  <rguenther@suse.de>

        PR middle-end/70370
        * gimplify.c (gimplify_asm_expr): Handle !allows_mem outputs
        with register bases.

2016-03-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70372
        * tree-ssa-reassoc.c (eliminate_plus_minus_pair): Use
        build_all_ones_cst to also handle vector types correctly.

2016-03-23  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/70381
        * config/rs6000/rs6000-cpus.def (ISA_2_6_MASKS_SERVER): Do not set
        -mfloat128 here.

2016-03-23  Marek Polacek  <polacek@redhat.com>

        PR c++/69884
        * doc/invoke.texi: Document -Wignored-attributes.

2016-03-23  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/69042
        * params.def (PARAM_IV_CONSIDER_ALL_CANDIDATES_BOUND): Increase the
        parameter from 30 to 40.

2016-03-23  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/69042
        * tree-ssa-loop-ivopts.c (add_iv_candidate_for_use): Add IV cand
        for use with constant offset stripped in base.

2016-03-23  Richard Biener  <rguenther@suse.de>

        PR middle-end/70251
        * match.pd (A + (B vcmp C ? 1 : 0) -> A - (B vcmp C)): Adjust
        mode compatibility check.
        (A - (B vcmp C ? 1 : 0) -> A + (B vcmp C)): Likewise.

2016-03-23  Jeff Law  <law@redhat.com>

        PR tree-optimization/64058
        * tree-ssa-coalesce.c (struct coalesce_pair): Add new field
        CONFLICT_COUNT.
        (struct ssa_conflicts): Move up earlier in the file.
        (conflicts_, var_map_): New static variables.
        (initialize_conflict_count): New function to initialize the
        CONFLICT_COUNT field for each conflict pair.
        (compare_pairs): Lazily initialize the conflict count and use it
        as the first tie-breaker.
        (sort_coalesce_list): Add new arguments conflicts, map.  Initialize
        and wipe conflicts_ and map_ around the call to qsort.  Remove
        special case for 2 coalesce pairs.
        * bitmap.c (bitmap_count_unique_bits): New function.
        (bitmap_count_bits_in_word): New function, extracted from
        bitmap_count_bits.
        (bitmap_count_bits): Use bitmap_count_bits_in_word.
        * bitmap.h (bitmap_count_unique_bits): Declare it.

2016-03-23  Ilya Enkovich  <enkovich.gnu@gmail.com>

        PR target/69917
        * config/i386/sol2.h (ASM_OUTPUT_DEF_FROM_DECLS): Follow
        transparent alias chain for decl assembler name.
        * config/sol2.c (solaris_assemble_visibility): Likewise.

2016-03-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm1020e.md (1020call_op): Reduce reservation
        duration.
        (v10_fdivs): Likewise.
        (v10_fdivd): Likewise.

2016-03-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR driver/70132
        * config/arm/driver-arm.c (host_detect_local_cpu): Reorder exit logic
        to not call fclose twice on file.

2016-03-23  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/70354
        * tree-vect-patterns.c (vect_recog_vector_vector_shift_pattern): If
        oprnd0 is wider than oprnd1 and there is a cast from the wider
        type to oprnd1, mask it with the mask of the narrower type.

        PR target/70321
        * config/i386/i386.md (*anddi3_doubleword, *<code>di3_doubleword):
        Optimize TARGET_STV splitters, if high or low word of last argument
        is 0 or -1.

2016-03-22  Jeff Law  <law@redhat.com>

        PR target/70232
        tree-ssa-threadbackward.c
        (fsm_find_control_statement_thread_paths): Correctly distinguish
        between old style jump threads vs FSM jump threads.

2016-03-22  Ilya Enkovich  <enkovich.gnu@gmail.com>

        PR target/70302
        * config/i386/i386.c (scalar_chain::convert_op): Support
        uninitialized register usage case.

2016-03-22  Richard Biener  <rguenther@suse.de>

        PR middle-end/70251
        * genmatch.c (gen_transform): Adjust last parameter to a three-state
        int...
        (capture::gen_transform): ... to change behavior when substituting
        a condition into cond or not-cond expr context.
        (dt_simplify::gen_1): Adjust.
        * gimple-match-head.c: Include gimplify.h for unshare_expr.
        * match.pd (A + (B vcmp C ? 1 : 0) -> A - (B vcmp C)): Revert
        last change and instead change to
        A + (B vcmp C ? 1 : 0) -> A - (B vcmp C ? -1 : 0).
        (A - (B vcmp C ? 1 : 0) -> A + (B vcmp C)): Likewise.

2016-03-22  Anthony Green  <green@moxielogic.com>

        * config/moxie/moxiebox.h (CC1_SPEC): Define.  Fix endianness
        issue for moxiebox targets.
        (CC1PLUS_SPEC): Ditto.

2016-03-22  Richard Biener  <rguenther@suse.de>

        PR middle-end/70333
        * fold-const.c (extract_muldiv_1): Properly perform multiplication
        in the wide type.

2016-03-22  Kirill Yukhin  <kirill.yukhin@intel.com>

        * config/i386/i386.c (def_builtin): Remove duplicated functionality.

2016-03-22  Kirill Yukhin  <kirill.yukhin@intel.com>

        PR target/70325
        * config/i386/i386.c (def_builtin): Handle
        OPTION_MASK_ISA_AVX512VL to be and-ed with other
        bits.
        (const struct builtin_description bdesc_special_args[]):
        Remove duplicate ISA bits.

2016-03-22  Jakub Jelinek  <jakub@redhat.com>

        PR target/70329
        * config/i386/i386.c (ix86_expand_vecop_qihi): Don't bother computing
        d.perm[i] for i >= d.nelt.  If not full_interleave, compute d.perm[i]
        in a way that works also for AVX512BW.

        PR target/70300
        * config/i386/i386.md (cvtsd2ss splitter): Unpack in destination
        instead of source if operands[1] is xmm16 and above and
        !TARGET_AVX512VL.  Use avx512f_vec_dupv16sf_1 instead of
        vec_interleave_lowv4sf if we need to unpack xmm16 and above.

        PR c++/70295
        * gimplify.c (gimplify_modify_expr): Call gimple_set_no_warning
        on assign if (*from_p) is a comparison, set it to
        TREE_NO_WARNING (*from_p).

2016-03-21  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/70326
        * lra.c (restore_scratches): Ignore deleted insns.

2016-03-21  Marc Glisse  <marc.glisse@inria.fr>
            Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/70317
        * match.pd (cmp @0 @0): Pass @0 instead of TYPE_MODE (TREE_TYPE (@0))
        to HONOR_NANS.

2016-03-21  Uros Bizjak  <ubizjak@gmail.com>

        PR target/70327
        * config/i386/i386.md (movxi): Use ix86_expand_vector_move instead
        of ix86_expand_move.
        (movoi): Ditto.
        (movti): Use general_operand for operand 1 predicate.

2016-03-21  Martin Liska  <mliska@suse.cz>

        * hsa-dump.c (dump_hsa_insn_1): dump default branch of SBR
        insns.
        (dump_hsa_symbol): Dump BRIG offset of hsa_symbols.

2016-03-21  Martin Liska  <mliska@suse.cz>

        PR ipa/70306
        * ipa-icf.c (sem_function::parse): Skip static
        constructors and destructors.

2016-03-21  Jakub Jelinek  <jakub@redhat.com>

        PR target/70296
        * config/rs6000/rs6000-c.c (rs6000_macro_to_expand): If IDENT is
        function-like macro, peek following token(s) if it is followed
        by CPP_OPEN_PAREN token with optional padding in between, and
        if not, don't treat it like a macro.

2016-03-21  Thomas Schwinge  <thomas@codesourcery.com>
            Alexander Monakov  <amonakov@ispras.ru>

        * config/nvptx/nvptx.c (nvptx_option_override): Don't emit sorry
        for the stabs debug format.

2016-03-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70310
        * tree-vect-generic.c (expand_vector_condition): Fold the built
        condition.

2016-03-21  Kirill Yukhin  <kirill.yukhin@intel.com>

        PR target/70293
        * config/i386/sse.md: (define_insn "*vec_dup<mode>"/AVX2):
        Block third alternative for AVX-512VL target,

2016-03-21  Martin Liska  <mliska@suse.cz>

        PR hsa/70234
        * hsa-brig.c (emit_function_directives): Mark unemitted
        global variables for emission.
        * hsa-gen.c (hsa_symbol::hsa_symbol): Initialize a new flag.
        (get_symbol_for_decl): Likewise.
        * hsa.h (struct hsa_symbol): New flag.

2016-03-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70288
        * tree-ssa-loop-ivcanon.c (tree_estimate_loop_size): Make sure
        we do not estimate unsimplified all-constant conditionals or
        switches as optimized away.

2016-03-21  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/69102
        * sched-deps.c (sched_analyze_insn): Do not set last_args_size field
        when we have a readonly dependency context.

2016-03-18  Jeff Law  <law@redhat.com>

        PR rtl-optimization/70263
        * ira.c (memref_used_between_p): Assert we found END in the insn chain.
        (update_equiv_regs): When trying to move a store to after the insn
        that sets the source of the store, make sure the store occurs after
        the insn that sets the source of the store.  When successful note
        the REG_EQUIV note created in the dump file.

2016-03-16  David Wohlferd  <dw@LimeGreenSocks.com>
            Bernd Schmidt  <bschmidt@redhat.com>

        * doc/extend.texi: Document more potential problems with basic asms.

2016-03-18  Bernd Schmidt  <bschmidt@redhat.com>

        PR rtl-optimization/70278
        * lra-constraints.c (split_reg): Handle the case where biggest_mode is
        VOIDmode.

2016-03-18  Jason Merrill  <jason@redhat.com>

        * calls.c (load_register_parameters): Fix zero size sibcall logic.

2016-03-18  Kirill Yukhin  <kirill.yukhin@intel.com>

        * config/i386/sse.md: Use vpbroadcastq for broadcasting DF
        values to 128b regs.

2016-03-18  Ilya Enkovich  <enkovich.gnu@gmail.com>

        PR tree-optimization/70252
        * tree-vect-stmts.c (supportable_widening_operation): Check resulting
        boolean vector has a proper number of elements.
        (supportable_narrowing_operation): Likewise.

2016-03-18  Tom de Vries  <tom@codesourcery.com>

        PR ipa/70269
        * cgraph.c (cgraph_node::get_body): Set dump_file to NULL after save.

2016-03-18  Jakub Jelinek  <jakub@redhat.com>

        * reload1.c (emit_input_reload_insns): Use simplify_replace_rtx
        instead of replace_rtx for DEBUG_INSNs.

2016-03-18  Venkataramanan Kumar  <venkataramanan.kumar@amd.com>

        * config/i386/znver1.md : Fix latencies of FP/SSE/AVX
        load type reservations.

2016-03-17  John David Anglin  <danglin@gcc.gnu.org>

        PR target/70188
        * config/pa/constraints.md: Revert 2015-02-13 change.  Use
        define_constraint for "Q" and "T" constraints.

2016-03-17  Evandro Menezes  <e.menezes@samsung.com>

        Tweak the pipeline model for Exynos M1

        * config/aarch64/aarch64.c (exynosm1_tunings):  Enable weak prefetching
        model.

2016-03-17  David Malcolm  <dmalcolm@redhat.com>

        PR c/70264
        * diagnostic-show-locus.c (compatible_locations_p): Handle the case
        where one or both locations aren't within a line_map.

2016-03-17  H.J. Lu  <hongjiu.lu@intel.com>

        PR driver/70192
        * opts.c (finish_options): Don't set flag_pie to the default if
        -fpic, -fPIC, -fno-pic or -fno-PIC is used.  Set flag_pic to 0
        if it is -1.

2016-03-17  Joern Rennecke  <joern.rennecke@embecosm.com>

        * config/i386/i386.md (*movv4qicc_insn+1..36): Pass
        true as ALL_REGS argument to replace_rtx.

2016-03-17  Richard Biener  <rguenther@suse.de>

        PR debug/70271
        * dwarf2out.c (dwarf2out_early_finish): Process deferred_asm_name
        last.

2016-03-17  Jakub Jelinek  <jakub@redhat.com>

        PR target/70245
        * rtl.h (replace_rtx): Add ALL_REGS argument.
        * rtlanal.c (replace_rtx): Likewise.  If true, use REGNO
        equality and assert mode is the same, instead of just rtx pointer
        equality.
        * config/i386/i386.md (mov + arithmetics with load peephole): Pass
        true as ALL_REGS argument to replace_rtx.

2016-03-17  Ilya Enkovich  <enkovich.gnu@gmail.com>

        * match.pd (A + (B vcmp C ? 1 : 0) -> A - (B vcmp C)): Apply
        for boolean vector with vector mode only.
        (A - (B vcmp C ? 1 : 0) -> A + (B vcmp C)): Likewise.

2016-03-17  Nick Clifton  <nickc@redhat.com>

        PR target/70162
        * config/rx/rx.c (rx_print_integer): Print negative constants in
        decimal.

2016-03-17  Jakub Jelinek  <jakub@redhat.com>

        PR target/70261
        * rtlanal.c (replace_rtx): Revert 2016-03-16 change.

2016-03-16  Richard Henderson  <rth@redhat.com>
            Richard Biener  <rguenth@suse.de>

        PR middle-end/70240
        PR middle-end/68215
        PR tree-opt/68714
        * gimplify.c (gimplify_expr) [VEC_COND_EXPR]: Gimplify the
        first operand as is_gimple_condexpr.

        PR middle-end/70240
        PR middle-end/68215
        Revert r231575
        2015-12-11  Eric Botcazou  <ebotcazou@adacore.com>
        * tree-vect-generic.c (tree_vec_extract): Remove GSI parameter.
        Do not gimplify the result.
        (do_unop): Adjust call to tree_vec_extract.
        (do_binop): Likewise.
        (do_compare): Likewise.
        (do_plus_minus): Likewise.
        (do_negate): Likewise.
        (expand_vector_condition): Likewise.
        (do_cond): Likewise.

2016-03-16  Richard Henderson  <rth@redhat.com>

        PR target/70048
        * config/aarch64/aarch64.c (virt_or_elim_regno_p): New.
        (aarch64_classify_address): Use it.
        (aarch64_legitimize_address): Force all subexpressions of PLUS
        into registers.  Simplify as (sfp+const)+reg or (reg+reg)+const.

2016-03-16  Jakub Jelinek  <jakub@redhat.com>
            Richard Biener  <rguenth@suse.de>

        PR target/70245
        * rtlanal.c (replace_rtx): For REG, if from is a REG,
        return to even if only REGNO is equal, and assert
        mode is the same.

2016-03-11  Jeff Law  <law@redhat.com>

        PR rtl-optimization/70224
        * reorg.c (relax_delay_slots): Pass right argument to CROSSING_JUMP_P.

2016-03-16  Richard Henderson  <rth@redhat.com>

        PR middle-end/70199
        * function.h (struct function): Add has_forced_label_in_static.
        * gimplify.c (force_labels_r): Set it.
        * lto-streamer-in.c (input_struct_function_base): Read it.
        * lto-streamer-out.c (output_struct_function_base): Write it.
        * tree-inline.c (has_label_address_in_static_1): Remove.
        (copy_forbidden): Remove fndecl parameter; test
        has_forced_label_in_static.
        (inline_forbidden_p): Update call to copy_forbidden.
        (tree_versionable_function_p): Likewise.
        * ipa-chkp.c (chkp_instrumentable_p): Likewise.
        (chkp_versioning): Likewise.
        * tree-inline.h (copy_forbidden): Update decl.

2016-03-16  Marek Polacek  <polacek@redhat.com>

        PR c/70093
        * cgraphunit.c (cgraph_node::expand_thunk): Also build call to the
        function being thunked if the result type doesn't have fixed size.
        * gimplify.c (gimplify_modify_expr): Also set LHS if the result type
        doesn't have fixed size.

2016-03-16  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop.c (vect_analyze_loop_2): Fix wrong dump info by
        reporting malformed loop nest.

2016-03-16  Tom de Vries  <tom@codesourcery.com>

        PR lto/70187
        * ipa-devirt.c (possible_polymorphic_call_targets): Move
        nodes.length () == 1 test to before first nodes[0] access.

2016-03-16  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/68715
        * graphite-scop-detection.c (scop_detection::merge_sese): Add missing
        single_pred_p test.

2016-03-16  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/68809
        * graphite-scop-detection.c (same_close_phi_node): Test if result types
        are the same.

2016-03-16  Carlos O'Donell  <carlos@redhat.com>
            Sandra Loosemore  <sandra@codesourcery.com>

        * doc/extend.texi (Common Function Attributes): Describe ifunc impact
        on leaf attribute. Mention ELF interposition problems.

2016-03-16  Alan Modra  <amodra@gmail.com>

        PR rtl-optimization/69195
        PR rtl-optimization/47992
        * ira.c (indirect_jump_optimize): Ignore artificial defs.
        Add comments.

2016-03-15  Eric Botcazou  <ebotcazou@adacore.com>

        PR bootstrap/69513
        * dwarf2out.c (flush_limbo_die_list): Really flush the limbo list.

2016-03-15  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

        * config/avr/avr.md (rotl<mode>3): Set mode for operand 2.

2016-03-15  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/70222
        * combine.c (simplify_shift_const_1): For A >> B >> C LSHIFTRT
        optimization if mode is different from result_mode, queue up masking
        of the result in outer_op.  Formatting fix.

        PR middle-end/70239
        * tree-ssa-sccvn.c (VN_INFO_GET): Use safe_grow_cleared instead
        of safe_grow.

2016-03-15  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/69032
        * sel-sched-ir.c (get_seqno_by_preds): Include both insn and head when
        looping backwards over basic block insns.

2016-03-15  Andrey Belevantsev  <abel@ispras.ru>

        PR target/66660
        * sel-sched-ir.c (merge_expr): Avoid changing the speculative pattern
        to non-speculative when propagating trap bits.

2016-03-15  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/63384
        * sel-sched.c (invoke_aftermath_hooks): Do not decrease issue_more on
        DEBUG_INSN_P insns.

2016-03-15  Andrey Belevantsev  <abel@ispras.ru>

        PR target/64411
        * sched-deps.c (get_implicit_reg_pending_clobbers): New function,
        factored out from ...
        (sched_analyze_insn): ... here.
        * sched-int.h (get_implicit_reg_pending_clobbers): Declare it.
        * sel-sched-ir.c (setup_id_implicit_regs): New function, use
        get_implicit_reg_pending_clobbers in it.
        (setup_id_reg_sets): Use setup_id_implicit_regs.
        (deps_init_id): Ditto.

2016-03-15  Tom de Vries  <tom@codesourcery.com>

        PR ipa/70161
        * cgraph.c (cgraph_node::get_body): Save, reset and restore
        dump_file_name.
        * passes.c (execute_one_ipa_transform_pass): Add missing argument to
        execute_function_dump.
        (execute_one_pass): Don't dump function if it will be dumped after ipa
        transform.

2016-03-15  Segher Boessenkool  <segher@kernel.crashing.org>

        * genrecog.c (match_pattern_2): If pred is NULL don't call
        safe_predicate_mode on it.

2016-03-14  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/70219
        * lra-constraints.c (delete_move_and_clobber): Change assertion
        to also allow dregno == 0.

2016-03-14  Richard Henderson  <rth@redhat.com>

        PR tree-opt/68714
        * tree-ssa-reassoc.c (ovce_extract_ops, optimize_vec_cond_expr): New.
        (can_reassociate_p): Allow ANY_INTEGRAL_TYPE_P.
        (reassociate_bb): Use optimize_vec_cond_expr; avoid
        optimize_range_tests, attempt_builtin_copysign and attempt_builtin_powi
        on vectors.

2016-03-14  Bernd Schmidt  <bschmidt@redhat.com>

        PR target/70083
        * lra-lives.c (process_bb_lives): Also update biggest mode for hard
        regs.
        (lra_create_live_ranges_1): initialize hard register biggest_mode to
        VOIDmode.
        * lra-constraints.c (split_reg): For hard regs, try to find the
        biggest single-register mode used in the function.

2016-03-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/56365
        * tree-ssa-phiopt.c (minmax_replacement): Handle alternate
        constants to compare against.

2016-03-14  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/70098
        * config/rs6000/rs6000.md (*ctr<mode>_internal1, *ctr<mode>_internal2,
        *ctr<mode>_internal5, *ctr<mode>_internal6): Also allow "d" as output.
        (define_split for the GPR case): Use int_reg_operand instead of
        gpc_reg_operand for the output.

2016-03-14  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/70045
        * graphite-isl-ast-to-gimple.c (graphite_create_new_loop_guard): Unshare
        create_empty_if_region_on_edge argument.

2016-03-13  Eric Botcazou  <ebotcazou@adacore.com>

        * config/arm/vxworks.h (STACK_CHECK_STATIC_BUILTIN): Define.
        (STACK_CHECK_PROTECT): Likewise.
        * config/i386/vxworks.h (STACK_CHECK_STATIC_BUILTIN): Likewise
        (STACK_CHECK_PROTECT): Likewise.
        * config/rs6000/vxworks.h (STACK_CHECK_STATIC_BUILTIN): Likewise
        (STACK_CHECK_PROTECT): Likewise.
        * config/rs6000/vxworksae.h (STACK_CHECK_PROTECT): Likewise.
        * config/sparc/vxworks.h (STACK_CHECK_STATIC_BUILTIN): Likewise.
        (STACK_CHECK_PROTECT): Likewise.

2016-03-12  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/69307
        * sel-sched.c (choose_best_pseudo_reg): Properly check for hard
        registers in modes that span more than one register.

2016-03-12  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/69614
        * lra-constraints.c (delete_move_and_clobber): New.
        (remove_inheritance_pseudos): Use it.

2016-03-12  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/70017
        * calls.c (emit_library_call_value_1): Clear the ECF_NOTHROW flag if
        the libcall is LCT_THROW.
        * explow.c (probe_stack_range): Pass LCT_THROW to emit_library_call
        for the checking routine.

2016-03-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/70131
        * config/rs6000/rs6000.md (round32<mode>2_fprs): Do not do the
        optimization if we have direct move.
        (roundu32<mode>2_fprs): Likewise.

2016-03-11  Bernd Schmidt  <bschmidt@redhat.com>

        PR target/70123
        * lra-remat.c (operand_to_remat): Disallow hard regs in the value t
        be rematerialized.
        (reg_overlap_for_remat_p): Renamed from input_regno_present_p.
        Arguments swapped.  All callers changed.  Take reg_renumber into
        account, and Calculate and compare register ranges for hard regs.

2016-03-11  Jeff Law  <law@redhat.com>

        PR tree-optimization/70190
        * tree-ssa-threadbackward.c (fsm_find_control_statement_thread_paths):
        Handle cases where we can not extract the taken edge, even though we
        found a constant value.

        PR tree-optimization/64058
        * tree-ssa-coalesce.c (struct coalesce_pair): Add new field INDEX.
        (num_coalesce_pairs): Move up earlier in file.
        (find_coalesce_pair): Initialize the INDEX field for each pair
        discovered.
        (compare_pairs): No longer sort on the elements in each pair.
        Instead break ties with the index of the coalesce pair.

2016-03-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/70002
        * config/aarch64/aarch64-protos.h
        (aarch64_save_restore_target_globals): New prototype.
        * config/aarch64/aarch64-c.c (aarch64_pragma_target_parse):
        Call the above when popping pragma.
        * config/aarch64/aarch64.c (aarch64_save_restore_target_globals):
        New function.
        (aarch64_set_current_function): Rewrite using the above.

2016-03-11  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/70177
        * gimple-expr.h (extract_ops_from_tree_1): Renamed to ...
        (extract_ops_from_tree): ... this.  In the 2 argument
        overload remove _1 suffix.
        * gimple-expr.c (extract_ops_from_tree_1): Renamed to ...
        (extract_ops_from_tree): ... this.
        * gimple.c (gimple_build_assign, gimple_assign_set_rhs_from_tree):
        Adjust callers.
        * tree-ssa-loop-niter.c (derive_constant_upper_bound): Likewise.
        * tree-ssa-forwprop.c (defcodefor_name): Call 3 operand
        extract_ops_from_tree instead of 2 operand one.

2016-03-11  Alan Lawrence  <alan.lawrence@arm.com>

        PR tree-optimization/70013
        * tree-sra.c (analyze_access_subtree): Also set grp_unscalarized_data
        for constant-pool entries.

2016-03-11  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/70174
        * expmed.c (store_bit_field_using_insv): Use gen_lowpart_if_possible
        followed by gen_lowpart on force_reg instead of just gen_lowpart.

        PR tree-optimization/70169
        * tree-ssa-loop.c (gen_lsm_tmp_name): Handle FUNCTION_DECL and
        LABEL_DECL like VAR_DECL.  Emit nothing instead of gcc_unreachable
        for unknown codes.

2016-03-11  Ilya Enkovich  <enkovich.gnu@gmail.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR target/70160
        * config/i386/i386.c (scalar_chain::convert_reg): Skip uses
        of uninitialized values.

2016-03-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md ("trunctddd2"): Turn former define_insn into
        define_expand.
        ("*trunctddd2"): New pattern definition.
        ("trunctdsd2"): Set prep_for_short_prec rounding mode for the
        TD->DD truncation.

2016-03-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md (BFP_RND_*, DFP_RND_*): Add new constant
        definitions for BFP and DFP rounding modes.
        ("fixuns_truncdddi2", "fixuns_trunctddi2")
        ("fixuns_trunc<BFP:mode><GPR:mode>2", "fixuns_trunc<mode>si2")
        ("fix_trunc<DSF:mode><GPR:mode>2", "fix_trunc<mode>di2")
        ("fix_trunctf<mode>2"): Use the new constants instead of magic
        numbers.

2016-03-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/constraints.md: Adjust comment.
        ("Y"): Adjust comment.  Rename s390_decompose_shift_count to
        s390_decompose_addrstyle_without_index.
        * config/s390/predicates.md (shift_count_or_setmem_operand):
        Rename to setmem_operand.
        * config/s390/s390-protos.h
        (s390_decompose_shift_count): Rename to
        s390_decompose_addrstyle_without_index.
        * config/s390/s390.c (s390_decompose_shift_count)
        (s390_mem_constraint, print_shift_count_operand)
        (print_operand_address, print_operand): Rename
        s390_decompose_shift_count to
        s390_decompose_addrstyle_without_index and rename
        print_shift_count_operand to print_addrstyle_operand troughout the
        file.
        * config/s390/s390.md ("setmem_long_<P:mode>", "*setmem_long")
        ("*setmem_long_and", "*setmem_long_31z", "*setmem_long_and_31z"):
        Rename shift_count_or_setmem_operand to setmem_operand.
        * config/s390/vx-builtins.md ("vec_insert<mode>")
        ("vec_promote<mode>"): Replace shift_count_or_setmem_operand with
        nonmemory_operand.

2016-03-10  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        PR target/70168
        * config/rs6000/rs6000.c (rs6000_expand_atomic_compare_and_swap):
        Handle overlapping retval and newval.

2016-03-10  Nick Clifton  <nickc@redhat.com>

        PR target/7044
        * config/aarch64/aarch64.c
        (aarch64_override_options_after_change_1): When forcing
        flag_omit_frame_pointer to be true, use a special value that can
        be detected if this function is called again, thus preventing
        flag_omit_leaf_frame_pointer from being forced to be false.

2016-03-10  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * common/config/aarch64/aarch64-common.c (aarch64_handle_option):
        Set x_flag_omit_leaf_frame_pointer when handling
        -momit-leaf-frame-pointer.

2016-03-10  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/69589
        * cgraph.c (cgraph_node::dump): Dump split_part and
        indirect_call_target.
        * cgraph.h (cgraph_node): Add indirect_call_target flag.
        * ipa.c (has_addr_references_p): Cleanup.
        (is_indirect_call_target_p): New.
        (walk_polymorphic_call_targets): Do not mark virtuals that may be
        called indirectly as local.
        (symbol_table::remove_unreachable_nodes): Compute indirect_call_target.

2016-03-10  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/69630
        * ipa-devirt.c (possible_polymorphic_call_targets): Do not ICE
        on cxa_pure_virtual.

2016-03-10  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/69589
        * tree.c (free_lang_data_in_decl): Clear visibility of TYPE_DECL.

2016-03-10  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/69589
        * tree.c (need_assembler_name_p): Only record main variant type names.

2016-03-10  Christophe Lyon  <christophe.lyon@linaro.org>

        PR target/70113.
        * config/aarch64/aarch64.h (TARGET_FIX_ERR_A53_843419_DEFAULT):
        Always define to 0 or 1.
        (TARGET_FIX_ERR_A53_843419): New macro.
        * config/aarch64/aarch64-elf-raw.h
        (TARGET_FIX_ERR_A53_843419_DEFAULT): Update for above changes.
        * config/aarch64/aarch64-linux.h: Likewise.
        * config/aarch64/aarch64.c
        (aarch64_override_options_after_change_1): Do not default
        aarch64_nopcrelative_literal_loads to true if Cortex-A53 erratum
        843419 is on.
        (aarch64_attributes): Handle fix-cortex-a53-843419.
        (aarch64_can_inline_p): Likewise.
        * config/aarch64/aarch64.opt (aarch64_fix_a53_err843419): Save.

2016-03-10  Alan Lawrence  <alan.lawrence@arm.com>
            Jakub Jelinek  <jakub@redhat.com>

        * common.opt (funconstrained-commons, flag_unconstrained_commons): New.
        * tree.c (array_at_struct_end_p): Do not limit to size of decl for
        DECL_COMMONS if flag_unconstrained_commons is set.
        * tree-dfa.c (get_ref_base_and_extent): Likewise.
        * doc/invoke.texi (Optimize Options): Add -funconstrained-commons.
        (funconstrained-commons): Document.

2016-03-10  Christophe Lyon  <christophe.lyon@linaro.org>

        * config/aarch64/t-aarch64 (OPTIONS_H_EXTRA): Add
        aarch64-fusion-pairs.def and aarch64-tuning-flags.def

2016-03-10  Ilya Enkovich  <enkovich.gnu@gmail.com>

        * tree-vect-stmts.c (vectorizable_mask_load_store): Check mask
        has a proper number of elements.

2016-03-10  Alan Modra  <amodra@gmail.com>

        PR rtl-optimization/69195
        PR rtl-optimization/47992
        * ira.c (recorded_label_ref): Delete.
        (update_equiv_regs): Return void.
        (indirect_jump_optimize): New function.
        (ira): Call indirect_jump_optimize and delete_trivially_dead_insns
        before regstat_compute_ri.  Don't rebuild_jump_labels here.
        Delete update_regstat.

2016-03-10  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70128
        * tree-ssa-structalias.c (set_uids_in_ptset): Set
        vars_contains_nonlocal for any FUNCTION_DECL or LABEL_DECL.

2016-03-09  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/70152
        * tree-sra.c (replace_removed_params_ssa_names): Copy over
        SSA_NAME_OCCURS_IN_ABNORMAL_PHI from old_name to new_name.

        PR target/70086
        * config/i386/i386.md (truncdfsf2 splitter): Use gen_vec_concatv2df
        instead of gen_sse2_loadlpd.
        * config/i386/sse.md (*vec_concatv2df): Rename to...
        (vec_concatv2df): ... this.

        PR tree-optimization/70127
        * fold-const.c (operand_equal_p): Revert the 2015-10-28 change.

2016-03-09  David Malcolm  <dmalcolm@redhat.com>

        PR c/68473
        PR c++/70105
        * diagnostic-show-locus.c (compatible_locations_p): New function.
        (layout::layout): Sanitize ranges using compatible_locations_p.

2016-03-09  David Malcolm  <dmalcolm@redhat.com>

        PR c/68473
        PR c++/70105
        * diagnostic-show-locus.c (layout_range::layout_range): Replace
        location_range param with three const expanded_locations * and a
        bool.
        (layout::layout): Replace call to
        rich_location::lazily_expand_location with get_expanded_location.
        Extract the range and perform location expansion here, passing
        the results to the layout_range ctor.
        * diagnostic.c (source_range::debug): Delete.
        * diagnostic.h (diagnostic_expand_location): Reimplement in terms
        of rich_location::get_expanded_location.
        * gcc-rich-location.c (get_range_for_expr): Delete.
        (gcc_rich_location::add_expr): Reimplement to avoid the
        rich_location::add_range overload that took a location_range,
        passing a location_t instead.

2016-03-09  Richard Biener  <rguenther@suse.de>
        Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/70138
        * tree-vect-loop-manip.c (vect_update_ivs_after_vectorizer):
        Also skip vect_double_reduction_def.

2016-03-09  Jakub Jelinek  <jakub@redhat.com>

        PR target/70049
        * config/i386/sse.md (*vec_extract<mode>): Use %0 instead of %k0
        if the operand is "m".

2016-03-09  Nathan Sidwell  <nathan@acm.org>

        * config/nvptx/nvptx.c (nvptx_option_override): Don't kill debug level.

2016-03-09  Venkataramanan Kumar  <venkataramanan.kumar@amd.com>

        * config/i386/i386.c (processor_target_table): Fix cost table
        intialization order for znver1.

2016-03-08  Jakub Jelinek  <jakub@redhat.com>

        * ipa-polymorphic-call.c (walk_ssa_copies): Fix spelling
        - becuase -> because.
        * ipa-reference.c (ignore_module_statics): Likewise.
        * cgraph.c (cgraph_node::get_body): Likewise.
        * ipa-inline.c (early_inliner): Likewise.
        * ipa-devirt.c (types_same_for_odr): Likewise.
        * tree-streamer-out.c (pack_ts_type_common_value_fields): Likewise.
        * config/i386/i386.h (ACCUMULATE_OUTGOING_ARGS): Likewise.

2016-03-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * tree-ssa-math-opts.c: Fix typo in comment.

2016-03-08  Jakub Jelinek  <jakub@redhat.com>

        PR target/70110
        * config/i386/i386.c (scalar_chain::make_vector_copies,
        scalar_chain::convert_reg): Call end_sequence in between
        get_insns and emit_conversion_insns rather than after both
        calls.

2016-03-07  Uros Bizjak  <ubizjak@gmail.com>

        PR target/70064
        * config/i386/i386.h (machine_function): Add
        pc_thunk_call_expanded flag.
        (ix86_pc_thunk_call_expanded): New define.
        * config/i386/i386.md (set_got, set_got_labelled): New expanders.
        (*set_got): Rename insn pattern from set_got.
        (*set_got_labelled): Rename inst pattern from set_got_labelled.
        * config/i386/i386.c (ix86_compute_frame_layout): Use
        ix86_pc_thunk_call_expanded to prevent red-zone.

2016-03-07  Martin Jambor  <mjambor@suse.cz>

        * hsa.h (hsa_get_ctor_statements): Declare.
        (hsa_get_dtor_statements): Likewise.
        (hsa_get_kernel_dispatch_type): Likewise.
        * hsa.c (hsa_get_ctor_statements): New function.
        (hsa_get_dtor_statements): Likewise.
        (hsa_get_kernel_dispatch_type): Likewise.
        * hsa-brig.c (hsa_cdtor_statements): Removed.
        (hsa_output_libgomp_mapping): Use hsa_get_ctor_statements and
        hsa_get_dtor_statements.
        * hsa-gen.c (hsa_kernel_dispatch_type): Removed.
        (get_hsa_kernel_dispatch_offset): Use hsa_get_kernel_dispatch_type.

2016-03-07  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * config/arm/arm-cores.def (cortex-r8): New.
        * config/arm/arm-tables.opt (cortex-r8): Regenerate.
        * config/arm/arm-tune.md: Likewise.
        * doc/invoke.texi: Add cortex-r8 to list of cpu values.

2016-03-07  Martin Sebor  <msebor@redhat.com>

        PR rtl-optimization/19705
        * doc/invoke.texi (Options That Control Optimization): Clarify
        -fno-branch-count-reg.

2016-02-26  Richard Biener  <rguenther@suse.de>
            Jeff Law  <law@redhat.com>

        PR tree-optimization/69740
        * cfghooks.c (remove_edge): Request loop fixups if we delete
        an edge that might turn an irreducible loop into a natural
        loop.
        * cfgloop.h (check_verify_loop_structure): Clear LOOPS_NEED_FIXUP.
        Move after definition of loops_state_clear.

2016-03-07  Bin Cheng  <bin.cheng@arm.com>

        PR rtl-optimization/69052
        * rtlanal.c (commutative_operand_precedence): Set higher precedence
        to CONST_WIDE_INT.

2016-03-07  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/70116
        * tree-ssa-tail-merge.c (merge_stmts_p): New function, handling
        is_tm_ending stmts and ubsan/asan internal functions.
        (find_duplicate): Use it.  Don't test is_tm_ending here.

2016-03-07  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/70115
        * tree-ssa-loop-ivcanon.c (propagate_into_all_uses): Remove.
        (propagate_constants_for_unrolling): Use replace_uses_by.

2016-03-07  Nathan Sidwell  <nathan@codesourcery.com>

        PR middle-end/69916
        * omp-low.c (struct oacc_loop): Add ifns.
        (new_oacc_loop_raw): Initialize it.
        (finish_oacc_loop): Clear mask & flags if no ifns.
        (oacc_loop_discover_walk): Count IFN_GOACC_LOOP calls.
        (oacc_loop_xform_loop): Add ifns arg & adjust.
        (oacc_loop_process): Adjust oacc_loop_xform_loop call.

2016-03-07  Richard Henderson  <rth@redhat.com>

        PR rtl-opt/70061
        * tree-outofssa.c (emit_partition_copy): Flush pending stack adjust.
        (insert_value_copy_on_edge): Likewise.

2016-03-07  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm_neon.h: Show error if using with soft-float ABI.

2016-03-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR target/62281
        * config/i386/sol2.h (STACK_REALIGN_DEFAULT): Define.

2016-03-05  Venkataramanan Kumar  <Venkataramanan.kumar@amd.com>

        * config/i386/i386.c (znver1_cost): Fix Multiply cost.

2016-03-05  Venkataramanan Kumar  <Venkataramanan.kumar@amd.com>

        Fix sseimul type attribute.
        * config/i386/znver1.md
        (znver1_sseimul, znver1_sseimul_avx256, znver1_sseimul_load,
        znver1_sseimul_avx256_load) : Fix the type attribute.
        (znver1_sseimul_di, znver1_sseimul_load_di): Fix type attribute,
        pipe usage and latency.

2016-03-05  Jakub Jelinek  <jakub@redhat.com>

        PR c++/70084
        * tree-inline.c (copy_tree_body_r): When cancelling ADDR_EXPR
        of INDIRECT_REF and ADDR_EXPR changed type, fold_convert it
        to the right type.

2016-03-04  Bernd Schmidt  <bschmidt@redhat.com>

        PR c/69973
        * targhooks.c (default_vector_alignment): Limit to MAX_OFILE_ALIGNMENT.

        PR rtl-optimization/69941
        * postreload.c (reload_combine_recognize_pattern): Ensure all uses of
        the reg share its mode.

2016-03-04  Jeff Law  <law@redhat.com>

        PR tree-optimization/69196
        * tree-ssa-threadbackward.c (fsm_find_control_statement_thread_paths):
        If the both SSA_NAMEs are anonymous, then consider them unassociated
        and include the PHI in the statement count.

2016-03-05  Tom de Vries  <tom@codesourcery.com>

        * omp-low.c (check_omp_nesting_restrictions): Check for non-oacc
        construct in oacc routine.  Check for oacc region in oacc routine.

2016-03-04  Jakub Jelinek  <jakub@redhat.com>

        PR target/70062
        * config/i386/i386.c (decide_alg): Add RECUR argument.  Revert
        2016-02-22 changes, instead don't recurse if RECUR is already true.
        Don't change *dynamic_check if RECUR.  Adjust recursive caller
        to pass true to the new argument.
        (ix86_expand_set_or_movmem): Adjust decide_alg caller.

        PR target/70059
        * config/i386/sse.md (vec_set_lo_<mode><mask_name>,
        <extract_type_2>_vinsert<shuffletype><extract_suf_2>_mask): Formatting
        fixes.
        (vec_set_hi_<mode><mask_name>): Likewise.  Swap VEC_CONCAT operands.

2016-03-04  Bernd Schmidt  <bschmidt@redhat.com>

        PR rtl-optimization/57676
        * lra-assigns.c (lra_assign): Guard test for maximum iterations
        with flag_checking.

2016-03-04  Ilya Enkovich  <enkovich.gnu@gmail.com>

        * tree-vect-patterns.c (search_type_for_mask): Handle
        comparison of booleans.

2016-03-04  Jakub Jelinek  <jakub@redhat.com>

        * doc/extend.texi (__builtin_alloca, __builtin_alloca_with_align):
        Fix @xref usage.

        PR debug/69947
        * dwarf2out.c (prune_unused_types_walk_loc_descr): Handle
        all other ops that have dw_val_class_die_ref operands,
        and DW_OP_GNU_entry_value.

2016-03-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR rtl-optimization/69904
        * config/arm/arm.c (arm_cannot_copy_insn_p):
        Return true for load-exclusive instructions.

2016-03-03  Jakub Jelinek  <jakub@redhat.com>

        PR target/70021
        * tree-vect-stmts.c (vect_mark_relevant): Remove USED_IN_PATTERN
        argument, if STMT_VINFO_IN_PATTERN_P (stmt_info), always mark
        the pattern no matter if it is used just by non-pattern, pattern
        or mix thereof.
        (process_use, vect_mark_stmts_to_be_vectorized): Adjust callers.
        * tree-vect-patterns.c (vect_recog_vector_vector_shift_pattern): If
        oprnd1 def_stmt is in pattern, don't look through it.

2016-03-03  Marek Polacek  <polacek@redhat.com>

        PR middle-end/70050
        * match.pd (X % -Y): Add INTEGRAL_TYPE_P check.

2016-03-03  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/70043
        * tree-vect-loop.c (optimize_mask_stores): Move iterator to
        previous statement if we see a debug statement.

2016-03-03  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/55936
        * tree-vrp.c (compare_name_with_value): Add use_equiv_p
        parameter and guard unsafe equivalence use.
        (vrp_evaluate_conditional_warnv_with_ops): Always use
        safe equivalences but not via the quadratic compare_names
        helper.

2016-03-03  Michael Collison  <michael.collison@linaro.org>

        PR target/70014
        * config/arm/arm.md (*subsi3_carryin_const): Change predicate
        for operand 1 to s_register_operand. Change predicate for operand
        2 to arm_not_immediate_operand.

2016-03-02  H.J. Lu  <hongjiu.lu@intel.com>

        * doc/tm.texi: Regenerated.

2016-03-02  Richard Henderson  <rth@redhat.com>

        PR rtl-opt/67145
        * simplify-rtx.c (simplify_plus_minus): Allow reassoc without
        simplification when all args are positive non-fixed registers.

2016-03-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * target.def (lra_p): Specify that new ports should use LRA.

2016-03-02  Jakub Jelinek  <jakub@redhat.com>

        PR libgomp/69555
        * gimplify.c (gimplify_decl_expr): For decls with REFERENCE_TYPE, also
        gimplify_type_sizes the type they refer to.
        (omp_notice_variable): Handle reference vars to VLAs.
        * omp-low.c (lower_omp_target): Emit setup of OMP_CLAUSE_PRIVATE
        reference to VLA decls in the second pass instead of first pass.

2016-03-02  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/68659
        * graphite-isl-ast-to-gimple.c (collect_all_ssa_names): Handle
        new_expr == NULL_TREE.
        (get_new_name): Handle ADDR_EXPR.

2016-03-02  Bin Cheng  <bin.cheng@arm.com>

        PR rtl-optimization/69052
        * loop-invariant.c (canonicalize_address): New function.
        (inv_can_prop_to_addr_use): Check validity of address expression
        which is canonicalized by above function.

2016-03-02  Alan Modra  <amodra@gmail.com>

        PR ipa/69990
        * ipa-icf.c (sem_variable::merge): Do not merge an alias with
        larger alignment.

2016-03-02  Jakub Jelinek  <jakub@redhat.com>

        PR target/70028
        * config/i386/i386.md (kmovw): Move m constraint to 2nd alternative.
        (*movhi_internal): Put mask moves from and to memory separately
        from moves from/to GPRs.

2016-03-02  Richard Biener  <rguenther@suse.de>

        * genmatch.c (dt_node::gen_kids): Fix match code-gen for embedded
        GENERIC expressions in GIMPLE.

2016-03-02  Richard Biener  <rguenther@suse.de>

        * config/i386/i386.c (type_natural_mode): Fix typo.

2016-03-02  Nick Clifton  <nickc@redhat.com>

        * config.gcc (mep-*-elf): Add newlib-stdint.h to tm_file.

2016-03-02  Richard Biener  <rguenther@suse.de>
            Uros Bizjak  <ubizjak@gmail.com>

        PR target/67278
        * config/i386/i386.c (type_natural_mode): Handle XFmode vectors.

2016-03-02  Richard Biener  <rguenther@suse.de>

        PR middle-end/67278
        * tree-cfg.c (verify_expr): Adjust BIT_FIELD_REF case.

2016-03-02  Marek Polacek  <polacek@redhat.com>

        PR c/67854
        * gimplify.c (gimplify_va_arg_expr): Use expanded location for the
        "is promoted to" warning.

2016-03-01  DJ Delorie  <dj@redhat.com>

        * config.gcc: Deprecate mep-*.

2016-03-01  Vladimir Makarov  <vmakarov@redhat.com>

        PR middle-end/70025
        * lra-constraints.c (regno_val_use_in): New.
        (match_reload): Use it instead of regno_use_in.

2016-03-01  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/70007
        * gcse.c (compute_ld_motion_mems): Tidy up and also invalidate memory
        references present in REG_EQUAL notes attached to non-SET patterns.

2016-03-01  Jeff Law  <law@redhat.com>

        PR tree-optimization/69196
        * tree-ssa-threadbackward.c (fsm_find_control_statement_thread_paths):
        Appropriately clamp the number of statements to copy when the
        thread path does not traverse a loop backedge.

        PR tree-optimization/69196
        * tree-ssa-threadbackward.c (fsm_find_control_statement_thread_paths):
        Do count some PHIs in the thread path against the insn count.  Decrease
        final statement count by one as the control statement in the last
        block will get removed.  Remove special cased code for handling PHIs
        in the last block.

2016-03-01  Uros Bizjak  <ubizjak@gmail.com>

        PR target/70027
        * config/i386/i386.c (ix86_output_call_insn): Add -masm=intel
        asm dialect alternatives to explicit GOTPCREL calls.

2016-03-01  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/70017
        * ira.c (do_reload): Issue warning for generic stack checking here...
        * reload1.c (reload): ...instead of here and streamline it.

2016-03-01  Nick Clifton  <nickc@redhat.com>

        * config.gcc (cr16-*-elf): Add newlib-stdint.h to tm_file.

2016-03-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69983
        * tree-chrec.c (eq_evolutions_p): Handle conversions, compare
        types and fall back to operand_equal_p.

2016-03-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        Revert
        2016-03-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/constraints.md ("jm8"): New constraint.
        * config/s390/predicates.md ("const_int_8bitset_operand"): New
        predicate.
        * config/s390/s390.md ("*setmem_long", "*setmem_long_and"): Merge
        into ...
        ("*setmem_long<setmem_and>"): New pattern.
        ("*setmem_long_31z", "*setmem_long_and_31z"): Merge
        into ...
        ("*setmem_long_31z<setmem_and>"): New pattern.
        * config/s390/subst.md ("setmem_31z_subst", "setmem_and_subst"):
        New substitution rules with the required attributes.


2016-03-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        Revert
        2016-03-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * gensupport.c (process_substs_on_one_elem): Split loop to
        complete mark_operands_used_in_match_dup on all expressions in the
        vector first.
        (adjust_operands_numbers): Inline into process_substs_on_one_elem
        and remove function.

2016-03-01  Richard Biener  <rguenther@suse.de>

        PR middle-end/70022
        * fold-const.c (fold_indirect_ref_1): Fix range checking for
        vector BIT_FIELD_REF extract.

2016-03-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69994
        * tree-ssa-reassoc.c (ops_equal_values_p): Handle missing case.

2016-03-01  Ilya Enkovich  <enkovich.gnu@gmail.com>

        PR tree-optimization/69956
        * tree-vect-stmts.c (supportable_widening_operation): Support
        multi-step conversion of boolean vectors.
        (supportable_narrowing_operation): Likewise.

2016-03-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_decompose_address): Don't accept SImode
        anymore.

2016-03-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/subst.md (DSI_VI): New mode iterator.
        ("addr_style_op_subst"): Use DSI_VI instead of DSI.
        * config/s390/vector.md ("vec_set<mode>"): Move expander before
        the insn definition.
        ("*vec_set<mode>"): Change predicate and add alternative to
        support only either register or const_int operands as element
        selector.
        ("*vec_set<mode>_plus"): New pattern to support reg + const_int
        operands.
        ("vec_extract<mode>"): New expander.
        ("*vec_extract<mode>"): New insn definition supporting reg and
        const_int element selectors.
        ("*vec_extract<mode>_plus"): New insn definition supporting
        reg+const_int element selectors.
        ("rotl<mode>3", "ashl<mode>3", "ashr<mode>3"): Merge into the
        following expander+insn definition.
        ("<vec_shifts_name><mode>3"): New expander.
        ("*<vec_shifts_name><mode>3<addr_style_op>"): New insn definition.

2016-03-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md ("*tabort_1"): Change predicate to
        nonmemory_operand.  Add a second alternative to cover
        register as well as const int operands.
        ("*tabort_1_plus"): New pattern definition.

2016-03-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md ("*ashrdi3_cc_31")
        ("*ashrdi3_cconly_31""*ashrdi3_cc_31_and")
        ("*ashrdi3_cconly_31_and", "*ashrdi3_31_and", "*ashrdi3_31"):
        Merge insn definitions into ...
        ("*ashrdi3_31<addr_style_op_cc><masked_op_cc><setcc><cconly>"):
        New pattern definition.
        ("*ashr<mode>3_cc", "*ashr<mode>3_cconly", "ashr<mode>3", )
        ("*ashr<mode>3_cc_and", "*ashr<mode>3_cconly_and")
        ("*ashr<mode>3_and"): Merge insn definitions into ...
        ("*ashr<mode>3<addr_style_op_cc><masked_op_cc><setcc><cconly>"):
        New pattern definition.
        * config/s390/subst.md ("addr_style_op_cc_subst")
        ("masked_op_cc_subst", "setcc_subst", "cconly_subst"): New
        substitutions patterns plus attributes.
        Add ashiftrt to SUBST iterator.

2016-03-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md ("<shift><mode>3"): Change predicate of
        op2 to nonmemory_operand.
        ("*<shift>di3_31", "*<shift>di3_31_and"):
        Merge into single pattern definition ...
        ("*<shift>di3_31<addr_style_op><masked_op>"): New pattern.
        ("*<shift><mode>3", "*<shift><mode>3_and"): Merge into single
        pattern definition ...
        ("*<shift><mode>3<addr_style_op><masked_op>"): New pattern.
        * config/s390/subst.md: Add ashift and lshiftrt to SUBST
        iterator.

2016-03-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/predicates.md (const_int_6bitset_operand): New
        predicate.
        * config/s390/s390.md: Include subst.md.
        ("rotl<mode>3"): New expander.
        ("rotl<mode>3", "*rotl<mode>3_and"): Merge insn definitions into
        ...
        ("*rotl<mode>3<addr_style_op><masked_op>"): New insn definition.
        * config/s390/subst.md: New file.

2016-03-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md ("op_type", "atype", "length" attributes):
        Remove RRR type.  It doesn't really exist.
        ("RRer", "f0", "v0", "vf", "vd", "op1", "Rf"): Remove mode
        attributes.
        ("BFP", "DFP", "nDSF", "nDFDI"): Add mode attributes.
        ("*cmp<mode>_ccs", "floatdi<mode>2", "add<mode>3")
        ("*add<mode>3_cc", "*add<mode>3_cconly", "sub<mode>3")
        ("*sub<mode>3_cc", "*sub<mode>3_cconly", "mul<mode>3")
        ("fma<mode>4", "fms<mode>4", "div<mode>3", "*neg<mode>2")
        ("*abs<mode>2", "*negabs<mode>2", "sqrt<mode>2"): Override
        `enabled' attribute.

2016-03-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * gensupport.c (process_substs_on_one_elem): Split loop to
        complete mark_operands_used_in_match_dup on all expressions in the
        vector first.
        (adjust_operands_numbers): Inline into process_substs_on_one_elem
        and remove function.

2016-02-29  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/69706
        * config/sparc/sparc.c (NWORDS_UP): Rename to...
        (CEIL_NWORDS): ...this.  Use CEIL macro.
        (compute_fp_layout): Adjust to above renaming.
        (function_arg_union_value): Likewise.
        (sparc_arg_partial_bytes): Likewise.
        (sparc_function_arg_advance): Likewise.

2016-02-29  Jeff Law  <law@redhat.com>

        PR tree-optimization/70005
        * tree-ssa-uncprop.c (associate_equivalences_with_edges): Handle case
        where an object with a boolean range is compared against a value
        outside [0..1].

        PR tree-optimization/69999
        * gimple-ssa-split-paths.c (split_paths): When duplicating a block
        with an outgoing edge marked with EDGE_IRREDUCIBLE_LOOP, schedule
        loop cleanups.

2016-02-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69994
        * tree-ssa-reassoc.c (gimple_nop_conversion_p): New function.
        (get_unary_op): Look through nop conversions.
        (ops_equal_values_p): New function, look for equality diregarding
        nop conversions.
        (eliminate_plus_minus_pair): Use ops_equal_values_p
        (repropagate_negates): Do not use get_unary_op here.

2016-02-29  Martin Liska  <mliska@suse.cz>

        * system.h: Poison ENABLE_CHECKING macro.

2016-02-29  Martin Liska  <mliska@suse.cz>

        * hsa-gen.c (gen_body_from_gimple): Dump only if TDF_DETAILS
        is presented in dump flags.
        * hsa-regalloc.c (linear_scan_regalloc): Likewise.
        (hsa_regalloc): Likewise.

2016-02-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69980
        * tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Update
        permutation of those we need to keep.

2016-02-29  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/69706
        * config/sparc/sparc.c (ROUND_ADVANCE): Rename to...
        (NWORDS_UP): ...this
        (init_cumulative_args): Minor tweaks.
        (sparc_promote_function_mode): Likewise.
        (scan_record_type): Delete.
        (traverse_record_type): New function template.
        (classify_data_t): New structure type.
        (classify_registers): New inline function.
        (function_arg_slotno): In 64-bit mode, bail out early if FP slots are
        exhausted.  Instantiate traverse_record_type on classify_registers and
        deal with the case of a structure passed in slot #15 with no FP field
        in the first word.
        (assign_data_t): New structure type.
        (compute_int_layout): New static function.
        (compute_fp_layout): Likewise.
        (count_registers): New inline function.
        (assign_int_registers): New static function.
        (assign_fp_registers): Likewise.
        (assign_registers): New inline function.
        (function_arg_record_value_1): Delete.
        (function_arg_record_value_2): Likewise.
        (function_arg_record_value_3): Likewise.
        (function_arg_record_value): Adjust to above changes.  Instantiate
        traverse_record_type on count_registers to first count the number of
        registers to be used and then on assign_registers to assign them.
        (function_arg_union_value): Adjust to above renaming.
        (sparc_function_arg_1); Minor tweaks.  Remove commented out code.
        (sparc_arg_partial_bytes): Adjust to above renaming.  Deal with the
        case of a structure passed in slot #15
        (sparc_function_arg_advance): Likewise.
        (function_arg_padding): Minor tweak.

2016-02-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69720
        * tree-vect-loop.c (get_initial_def_for_reduction): Avoid
        the adjustment_def path for possibly vectorized defs.
        (vect_create_epilog_for_reduction): Handle vectorized initial
        defs properly.

2016-02-28  Eric Botcazou  <ebotcazou@adacore.com>

        * config/i386/cygming.h (STACK_REALIGN_DEFAULT): Define.

2016-02-27  Jeff Law  <law@redhat.com>

        Revert
        2016-02-26  Richard Biener  <rguenther@suse.de>
                    Jeff Law  <law@redhat.com>

        PR tree-optimization/69740
        * cfghooks.c (remove_edge): Request loop fixups if we delete
        an edge that might turn an irreducible loop into a natural
        loop.

2016-02-27  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/69896
        * tree-vect-generic.c (get_compute_type): Avoid single element
        vector types.

2016-02-26  Evandro Menezes  <e.menezes@samsung.com>

        Rename the AArch64 tuning option and related functions to enable the
        Newton series for the reciprocal square root to reflect its
        approximative characteristic.

        * config/aarch64/aarch64-protos.h (aarch64_emit_swrsqrt): Rename
        function to "aarch64_emit_approx_rsqrt".
        * config/aarch64/aarch64-tuning-flags.def: Rename tuning flag to
        AARCH64_EXTRA_TUNE_APPROX_RSQRT.
        * config/aarch64/aarch64.c (exynosm1_tunigs): Use new flag name.
        (xgene1_tunings): Likewise.
        (use_rsqrt_p): Likewise.
        (aarch64_emit_swrsqrt): Use new function name.
        * config/aarch64/aarch64-simd.md (aarch64_rsqrts_*): Likewise.
        * config/aarch64/aarch64.opt (mlow-precision-recip-sqrt): Reword the
        text explaining this option.
        * doc/invoke.texi (-mlow-precision-recip-sqrt): Likewise.

2016-02-26  Jakub Jelinek  <jakub@redhat.com>

        PR target/69969
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
        complain about -mallow-movmisalign without -mvsx if
        TARGET_ALLOW_MOVMISALIGN was not set explicitly.

2016-02-26  Joel Sherrill  <joel@rtems.org>

        * config.gcc: Add x86_64-*-rtems*.
        * config/i386/rtems-64.h: New file.

2016-02-26  Joel Sherrill  <joel@rtems.org>

        * config.gcc: Add aarch64-*-rtems*.
        * config/aarch64/rtems.h: New file.

2016-02-26  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/69946
        * config/rs6000/rs6000.c (rs6000_insn_for_shift_mask): Print rlwinm
        shift amount using %h.  Add comment.

2016-02-26  Richard Biener  <rguenther@suse.de>
            Jeff Law  <law@redhat.com>

        PR tree-optimization/69740
        * cfghooks.c (remove_edge): Request loop fixups if we delete
        an edge that might turn an irreducible loop into a natural
        loop.

2016-02-26  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/69920
        * tree-sra.c (sra_modify_assign): Do not remove loads of
        uninitialized aggregates to SSA_NAMEs.

2016-02-26  Richard Henderson  <rth@redhat.com>

        PR target/69709
        * config/s390/s390.md (risbg and risbgn splitters): Allocate new
        pseudo in case the target rtx matches the source of the left
        shift.

2016-02-26  Martin Jambor  <mjambor@suse.cz>

        PR hsa/69568
        * hsa.h (hsa_type_packed_p): Declare.
        * hsa.c (hsa_type_packed_p): New function.
        * hsa-gen.c (mem_type_for_type): Use unsigned type for packed
        loads.
        (gen_hsa_insns_for_store): Use hsa_type_packed_p.
        * hsa-brig.c (emit_basic_insn): Likewise.

2016-02-26  Martin Jambor  <mjambor@suse.cz>

        pr hsa/69674
        * hsa-gen.c (gen_hsa_phi_from_gimple_phi): Use proper hsa type for
        pointers.
        (gen_hsa_addr): Allow integer constants in TMR_INDEX2.

2016-02-26  Martin Jambor  <mjambor@suse.cz>

        * hsa.h (is_a_helper): New overload for hsa_op_immed for
        hsa_op_with_type operands.
        (hsa_unsigned_type_for_type): Declare.
        * hsa.c (hsa_unsigned_type_for_type): New function.
        * hsa-gen.c (gen_hsa_binary_operation): Use hsa_unsigned_type_for_type.
        (gen_hsa_insns_for_operation_assignment): Satisfy constrains of
        the finalizer.  Do not emit extra move.

2016-02-26  Martin Jambor  <mjambor@suse.cz>

        * hsa-gen.c (gen_hsa_ternary_atomic_for_builtin): Fail in presence of
        atomic operations in private segment.

2016-02-26  Martin Jambor  <mjambor@suse.cz>

        * omp-low.c (grid_find_ungridifiable_statement): Store problematic
        statements to wi->info.  Also disallow omp simd constructs.
        (grid_target_follows_gridifiable_pattern): Use wi.info to dump reason
        for not gridifying.  Dump special string for omp_for.

2016-02-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/69245
        * config/aarch64/aarch64.c (aarch64_set_current_function):
        Save/restore target globals when switching to
        target_option_default_node.

2016-02-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/69613
        * config/aarch64/aarch64.c (aarch64_shift_truncation_mask):
        Return 0 if !SHIFT_COUNT_TRUNCATED.

2016-02-26  Jakub Jelinek  <jakub@redhat.com>
            Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/69891
        * dse.c (scan_insn): If we can't figure out memset arguments
        or they are non-constant, call clear_rhs_from_active_local_stores.

2016-02-26  Martin Liska  <mliska@suse.cz>

        * doc/extend.texi: Mention clog10, clog10f an clog10l
        in Builtins section.

2016-02-26  Martin Liska  <mliska@suse.cz>

        * dwarf2out.c (new_loc_descr): Replace ENABLE_CHECKING with
        CHECKING_P.
        (resolve_args_picking_1): Likewise.
        * dwarf2out.h (struct GTY): Likewise.

2016-02-26  Martin Liska  <mliska@suse.cz>

        * hsa-gen.c (generate_hsa): Replace ENABLE_CHECKING macro
        with flag_checking.
        * hsa-regalloc.c (linear_scan_regalloc): Likewise.

2016-02-26  Markus Trippelsdorf  <markus@trippelsdorf.de>
            Martin Liska  <mliska@suse.cz>

        * doc/install.texi: Mention --enable-valgrind-annotations.

2016-02-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69551
        * tree-ssa-structalias.c (get_constraint_for_ssa_var): When
        looking through aliases adjust DECL_PT_UID to refer to the
        ultimate alias target.

2016-02-25  Martin Liska  <mliska@suse.cz>

        PR middle-end/69919
        * alloc-pool.c (after_memory_report): New variable.
        * alloc-pool.h (base_pool_allocator ::release): Do not use
        the infrastructure if after_memory_report.
        * toplev.c (toplev::main): Mark after memory report.

2016-02-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/48795
        * tree-vrp.c (check_array_ref): Use array_at_struct_end_p.

2016-02-25  Ilya Verbin  <ilya.verbin@intel.com>

        PR driver/68463
        * config/gnu-user.h (CRTOFFLOADBEGIN): Define.  Add crtoffloadbegin.o if
        offloading is enabled and -fopenacc or -fopenmp is specified.
        (CRTOFFLOADEND): Likewise.
        (GNU_USER_TARGET_STARTFILE_SPEC): Add CRTOFFLOADBEGIN.
        (GNU_USER_TARGET_ENDFILE_SPEC): Add CRTOFFLOADEND.
        * lto-wrapper.c (offloadbegin, offloadend): Remove static vars.
        (offload_objects_file_name): New static var.
        (tool_cleanup): Remove offload_objects_file_name file.
        (find_offloadbeginend): Replace with ...
        (find_crtoffloadtable): ... this.
        (run_gcc): Remove offload_argc and offload_argv.
        Get offload_objects_file_name from -foffload-objects=... option.
        Read names of object files with offload from this file, pass them to
        compile_images_for_offload_targets.  Don't call find_offloadbeginend and
        don't pass offloadbegin and offloadend to the linker.  Don't pass
        offload non-LTO files to the linker, because now they're not claimed.

2016-02-25  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/69630
        * ipa-devirt.c (possible_polymorphic_call_targets): Do not ICE
        on builtin_unreachable.

2016-02-25  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/69896
        * regcprop.c: Include cfgrtl.h.
        (copyprop_hardreg_forward_1): If noop_p insn uses narrower
        than remembered mode, either delete it (if noop_move_p), or
        treat like copy_p but not noop_p instruction.

2016-02-24  Jakub Jelinek  <jakub@redhat.com>

        PR debug/69705
        * dwarf2out.c (gen_variable_die): Work around buggy LTO
        - allow NULL decl for Fortran DW_TAG_common_block variables.

2016-02-24  Jason Merrill  <jason@redhat.com>

        * common.opt (flifetime-dse): Add -flifetime-dse=1.

2016-02-24  Richard Biener  <rguenther@suse.de>
            Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/69760
        * tree-scalar-evolution.c (interpret_rhs_expr): Re-write
        conditionally executed ops to well-defined overflow behavior.

2016-02-24  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/69915
        * tree.c (build_vector_from_ctor): Fix handling of VECTOR_CST
        elements.

2016-02-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR rtl-optimization/69886
        * gcse.c (can_assign_to_reg_without_clobbers_p): Accept mode
        argument.  Use it when checking validity of set instructions.
        (want_to_gcse_p): Pass mode to can_assign_to_reg_without_clobbers_p.
        (compute_ld_motion_mems): Update can_assign_to_reg_without_clobbers_p
        callsite.
        * rtl.h (can_assign_to_reg_without_clobbers_p): Update prototype.
        * store-motion.c (find_moveable_store): Update
        can_assign_to_reg_without_clobbers_p callsite.

2016-02-24  Richard Biener  <rguenther@suse.de>

        PR middle-end/68963
        * tree-ssa-loop-niter.c (derive_constant_upper_bound_ops): Fix
        bogus check.
        (record_nonwrapping_iv): Do not fall back to the low/high bound
        for non-constant IV bases if the stmt is not always executed.

2016-02-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm-cores.def (cortex-a32): New entry.
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/arm-tune.md: Regenerate.
        * config/arm/bpabi.h (BE8_LINK_SPEC): Add mcpu=cortex-a32.
        * config/arm/t-aprofile: Handle mcpu=cortex-a32.
        * doc/invoke.texi (ARM Options): Document cortex-a32 as value
        for -mcpu and -mtune.

2016-02-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/69875
        * config/arm/arm.h (TARGET_HAVE_LPAE): Define.
        * config/arm/unspecs.md (VUNSPEC_LDRD_ATOMIC): New value.
        * config/arm/sync.md (arm_atomic_loaddi2_ldrd): New pattern.
        (atomic_loaddi_1): Delete.
        (atomic_loaddi): Rewrite expander using the above changes.

2016-02-24  Jakub Jelinek  <jakub@redhat.com>

        PR c/69918
        * params.def (PARAM_MAX_SSA_NAME_QUERY_DEPTH): Bump default from
        2 to 3.

2016-02-24  Jakub Jelinek  <jakub@redhat.com>
            Richard Biener  <rguenth@suse.de>

        PR middle-end/69909
        * expr.c (expand_expr_real_1) <normal_inner_ref>: Avoid
        set_mem_attributes if tem is SSA_NAME which got expanded
        as a MEM.

2016-02-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69907
        * tree-vect-stmts.c (vectorizable_load): Check for gaps at the
        end of permutations for BB vectorization.

2016-02-24  Christian Bruel  <christian.bruel@st.com>

        * config/arm/arm-c.c (arm_option_override): Initialize
        target_option_current_node.
        * config/arm/arm.c (arm_pragma_target_parse): Replace
        build_target_option_node call by target_option_current_node.
        Set target_option_current_node.
        Fix comments.

2016-02-23  David Edelsohn  <dje.gcc@gmail.com>

        PR target/69810
        * config/rs6000/rs6000.md (zero_extendqi<mode>2_dot): Convert from
        define_insn_and_split to define_insn.
        (zero_extendqi<mode>2_dot2): Same.
        (extendqi<mode>2_dot): Same.
        (extendqi<mode>2_dot2): Same.

2016-02-23  Evandro Menezes  <e.menezes@samsung.com>

        * config/arm/exynos-m1.md: Change cost of STP, fix bypass for stores
        and add bypass for AES{D,E} and AESMC pairs.
        * config/aarch64/aarch64.c (exynosm1_tunings): Enable fusion of AES{D,E}
        and AESMC pairs.

2016-02-23  Evandro Menezes  <e.menezes@samsung.com>

        * config/aarch64/aarch64.c (exynosm1_tunings): Enable the Newton
        series for reciprocal square root in Exynos M1.

2016-02-23  Martin Sebor  <msebor@redhat.com>

        PR c/69759
        * doc/extend.texi (Other Builtins): Document __builtin_alloca and
        __builtin_alloca_with_align.

2016-02-23  Richard Henderson  <rth@redhat.com>

        * config/i386/i386-c.c (ix86_target_macros): Remove __SEG_TLS.
        (ix86_register_pragmas): Remove __seg_tls.
        * config/i386/i386-protos.h (ADDR_SPACE_SEG_TLS): Remove.
        * config/i386/i386.c (ix86_print_operand_address_as): Don't handle it.
        (ix86_addr_space_subset_p, TARGET_ADDR_SPACE_SUBSET_P): Remove.
        (ix86_addr_space_convert, TARGET_ADDR_SPACE_CONVERT): Remove.
        (ix86_addr_space_debug, TARGET_ADDR_SPACE_DEBUG): Remove.
        * doc/extend.texi (__seg_tls): Remove item.

2016-02-23  Richard Biener  <rguenther@suse.de>

        * alloc-pool.h (struct allocation_object): Make id member
        conditional on CHECKING_P again.
        (get_instance): Adjust.
        (base_pool_allocator): Likewise.

2016-02-23  Thomas Schwinge  <thomas@codesourcery.com>

        * tree-parloops.c (create_parallel_loop, gen_parallel_loop)
        (parallelize_loops): In OpenACC kernels mode, set n_threads to
        zero.
        (pass_parallelize_loops::gate): In OpenACC kernels mode, gate on
        flag_openacc.
        * tree-ssa-loop.c (gate_oacc_kernels): Likewise.

2016-02-23  Richard Biener  <rguenther@suse.de>

        * mem-stats.h (struct mem_usage): Use PRIu64 for printing size_t.
        * bitmap.h (struct bitmap_usage): Likewise.
        (bitmap_move): Declare.
        * bitmap.c (register_overhead): Take size_t argument.
        (bitmap_move): New function.
        * df-problems.c (df_rd_transfer_function): Use bitmap_move
        to properly account overhead.
        * tree.c (free_node): Use tree_size.

2016-02-23  Jakub Jelinek  <jakub@redhat.com>

        PR c++/69902
        * fold-const.c (fold_truth_not_expr): Propagate TREE_NO_WARNING
        when inverting comparison.

        PR c/69900
        * common.opt (Wunreachable-code): Add Warning flag.

2016-02-23  Mark Wielaard  <mjw@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR c/69911
        * cgraphunit.c (check_global_declaration): Check main_input_filename
        and DECL_SOURCE_FILE are not NULL.

2016-02-23  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/69666
        * tree-sra.c (sra_modify_assign): Do not attempt to create
        default_def replacements for unscalarizable regions.

2016-02-20  Mark Wielaard  <mjw@redhat.com>

        PR c/28901
        * cgraphunit.c (check_global_declaration): Check level of
        warn_unused_const_variable and main_input_filename.
        * doc/invoke.texi (Warning Options): Add -Wunused-const-variable=.
        (-Wunused-variable): For C implies -Wunused-const-variable=1.
        (-Wunused-const-variable): Explain levels 1 and 2.

2016-02-22  Jakub Jelinek  <jakub@redhat.com>

        PR target/69888
        * config/i386/i386.c (decide_alg): Ensure we don't recurse with
        identical arguments.  Formatting and spelling fixes.

        PR target/69885
        * doc/md.texi (ashl@var{m}3): Document that mode of operand 2 must
        be specified.

        PR target/69894
        PR target/69895
        * config/m68k/t-opts (OPTIONS_H_EXTRA): Add m68k-microarchs.def
        and m68k-devices.def.
        * config/c6x/t-c6x (OPTIONS_H_EXTRA): Add c6x-isas.def.
        * config/aarch64/t-aarch64 (OPTIONS_H_EXTRA): Add aarch64-arches.def.

2016-02-22  Cesar Philippidis  <cesar@codesourcery.com>

        * config/nvptx/nvptx.c (nvptx_gen_shuffle): Add support for QImode
        and HImode registers.

2016-02-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69882
        * tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Properly
        preserve permutations present because of gaps.
        (vect_supported_load_permutation_p): Always continue checking
        permutations after vect_attempt_slp_rearrange_stmts.

2016-02-22  Bin Cheng  <bin.cheng@arm.com>

        * tree-vect-loop.c (vect_estimate_min_profitable_iters): Dump
        min_profitable_estimate, rather than min_profitable_iters.

2016-02-22  Jakub Jelinek  <jakub@redhat.com>

        PR target/69885
        * config/m68k/m68k.md (ashldi3, ashrdi3, lshrdi3): Use
        SImode for last match_operand.

2016-02-22  Martin Liska  <mliska@suse.cz>

        * hsa-gen.c (gen_hsa_clrsb): In case of zero value,
        return bitsize - 1 as the return value.

2016-02-22  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/69806
        PR target/54089
        * config/sh/sh.c (sh_lshrsi_clobbers_t_reg_p, sh_dynamicalize_shift_p):
        Handle negative shift counts.
        * config/sh/sh.md (ashlsi3, lshrsi3_n, lshrsi3_n_clobbers_t): Don't use
        force_reg on the shift constant.
        (lshrsi3): Likewise.  Expand into lshrsi3_n* instead of lshrsi3_d.
        (lshrsi3_d): Handle negative shift counts.

2016-02-22  Richard Biener  <rguenther@suse.de>
            Tom de Vries  <tom@codesourcery.com>

        * graph.c: Include dumpfile.h.
        (print_graph_cfg): Split into three overloads.
        * gdbhooks.py (class DotFn): Add and instantiate, adding command dot-fn.

2016-02-22  Tom de Vries  <tom@codesourcery.com>

        * gdbhooks.py (class DumpFn): Add and instantiate, adding command
        dump-fn.

2016-02-22  Richard Biener  <rguenther@suse.de>

        PR ipa/37448
        * ipa-inline-transform.c (inline_call): When not updating
        overall summaries adjust self size by the growth estimate.
        * ipa-inline.c (inline_to_all_callers_1): Add to the callers
        hash-set, do not update overall summaries here.  Renamed from ...
        (inline_to_all_callers): ... this which is now wrapping the
        above and performing delayed overall summary update.
        (early_inline_small_functions): Delay updating of the overall
        summary.

2016-02-21  Markus Trippelsdorf  <markus@trippelsdorf.de>

        * tree-chkp.c (chkp_mark_invalid_bounds_walker): Initialize
        variable.

2016-02-19  Jakub Jelinek  <jakub@redhat.com>

        PR driver/69805
        * gcc.c (LINK_COMMAND_SPEC, GOMP_SELF_SPECS): Use
        :%* in %:gt() argument.
        (greater_than_spec_func): Adjust for expecting only numbers,
        if there are more than two numbers, compare the last two.

2016-02-19  Jonathan Wakely  <jwakely@redhat.com>

        * doc/invoke.texi (C++ Dialect Options): Clarify interaction of
        -Wnarrowing with -std.

2016-02-19  Jakub Jelinek  <jakub@redhat.com>

        PR c++/69851
        * expr.c (store_field): Don't use bit-field path if exp is
        COMPONENT_REF with TREE_ADDRESSABLE type, where TYPE_SIZE is
        different from bitsize, but DECL_SIZE of FIELD_DECL is bitsize
        and the assignment can be performed by bitwise copy.  Formatting
        fix.

        PR middle-end/69838
        * lra.c (lra_process_new_insns): If non-call exceptions are enabled,
        call copy_reg_eh_region_note_forward on before and/or after sequences
        and remove note from insn if it no longer can throw.

        PR target/69820
        * config/i386/sse.md (VI_512): Only include V64QImode and V32HImode
        if TARGET_AVX512BW.

2016-02-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/vector.md: Add missing commutative operand markers
        to the patterns which qualify for one.
        * config/s390/vx-builtins.md: Likewise.

2016-02-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/vector.md (VI, VI_QHS): Add single element vector
        types to mode iterators.
        (vec_double): ... and mode attribute.
        * config/s390/vx-builtins.md (non_vec_int): Likewise.

2016-02-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/vector.md ("<ti*>add<mode>3", "<ti*>sub<mode>3"):
        Change the predicate of op2 from nonimmediate to general and let
        reload fix it if necessary.

2016-02-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/vecintrin.h (vec_sub_u128): Define missing macro.

2016-02-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_expand_vcond): Use the compare operand
        mode.

2016-02-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390-protos.h: Add s390_expand_vec_movstr prototype.
        * config/s390/s390.c (s390_expand_vec_movstr): New function.
        * config/s390/s390.md ("movstr<P:mode>"): Call
        s390_expand_vec_movstr.

2016-02-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.md: Add missing output modifier for operand 1
        to print it as address properly.

2016-02-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/2827.md: Rename ooo_* insn attributes to zEC12_*.
        * config/s390/2964.md: New file.
        * config/s390/s390.c (s390_get_sched_attrmask): Use the right set
        of insn grouping attributes depending on the CPU level.
        (s390_get_unit_mask): New function.
        (s390_sched_score): Remove the OOO from the scheduling macros.
        Add loop to calculate a score for the instruction mix.
        (s390_sched_reorder): Likewise plus improve debug output.
        (s390_sched_variable_issue): Rename macros as above.  Calculate
        the unit distances after actually scheduling an insn.  Improve
        debug output.
        (s390_sched_init): Clear last_scheduled_unit_distance array.
        * config/s390/s390.md: Include 2964.md.

2016-02-18  Jakub Jelinek  <jakub@redhat.com>

        PR target/69671
        * config/i386/sse.md (*<floatsuffix>floatv2div2sf2_mask_1,
        *avx512vl_<code>v2div2qi2_mask_1, *avx512vl_<code><mode>v4qi2_mask_1,
        *avx512vl_<code><mode>v8qi2_mask_1, *avx512vl_<code><mode>v4hi2_mask_1,
        *avx512vl_<code>v2div2hi2_mask_1, *avx512vl_<code>v2div2si2_mask_1,
        *avx512f_<code>v8div16qi2_mask_1): New insns.

2016-02-18  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/68404
        * config/rs6000/predicates.md (fusion_gpr_addis): Revert
        2016-02-09 change.

        * config/rs6000/rs6000.md (fusion_gpr_load_<mode>): Remove
        earlyclobber from target.  Use wF constraint for fused memory
        address.
        (fusion_gpr_<P:mode>_<GPR_FUSION:mode>_load): Likewise.

2016-02-18  Jakub Jelinek  <jakub@redhat.com>
            Martin Liska  <mliska@suse.cz>

        PR sanitizer/69863
        * cfgexpand.c (asan_sanitize_stack_p): New function.
        (partition_stack_vars): Use the function.
        (expand_stack_vars): Likewise.
        (defer_stack_allocation): Likewise.
        (expand_used_vars): Likewise.

2016-02-18  Richard Biener  <rguenther@suse.de>

        PR middle-end/69553
        * fold-const.c (operand_equal_p): Properly compare offsets for
        IMAGPART_EXPR and ARRAY_REF.

2016-02-18  Nick Clifton  <nickc@redhat.com>

        PR target/62254
        PR target/69610
        * config/arm/arm.c (arm_option_override_internal): Disable
        interworking if the target does not support thumb instructions.
        (arm_reload_in_hi): Handle the case where a register to register
        move needs reloading because there is no simple pattern to handle
        it.
        (arm_reload_out_hi): Likewise.

2016-02-18  Richard Biener  <rguenther@suse.de>

        PR middle-end/69854
        * match.pd: Don't use fold_binary or fold_unary for folding
        constants.

2016-02-17  Jakub Jelinek  <jakub@redhat.com>

        PR c++/69850
        * gimplify.c (gimplify_cond_expr): Call gimple_set_no_warning
        on the cond_stmt from TREE_NO_WARNING on COND_EXPR_COND.
        * gimple-ssa-nonnull-compare.c (do_warn_nonnull_compare): Don't
        warn on gimple_no_warning_p statements.

2016-02-17  Jonathan Wakely  <jwakely@redhat.com>

        * doc/extend.texi (C++ Attributes): Correct description of
        warn_unused type attribute.

2016-02-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/altivec.md (*altivec_lvxl_<mode>_internal): Output
        correct instruction.

2016-02-17  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/69609
        * bb-reorder.c (struct bbro_basic_block_data): Add priority member.
        (find_traces_1_round): When ending a trace update cached priority
        of successors.
        (bb_to_key): Use cached priority when available.
        (copy_bb): Initialize cached priority.
        (reorder_basic_blocks_software_trace_cache): Likewise.

2016-02-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/69161
        * config/aarch64/predicates.md (aarch64_comparison_operator_mode):
        New predicate.
        (aarch64_comparison_operator): Break overly long line into two.
        (aarch64_comparison_operation): Likewise.
        * config/aarch64/aarch64.md (cstorecc4): Use
        aarch64_comparison_operator_mode instead of
        aarch64_comparison_operator.
        (cstore<mode>4): Likewise.
        (aarch64_cstore<mode>): Likewise.
        (*cstoresi_insn_uxtw): Likewise.
        (cstore<mode>_neg): Likewise.
        (*cstoresi_neg_uxtw): Likewise.

2016-02-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/69161
        * config/arm/predicates.md (arm_comparison_operator_mode):
        New predicate.
        * config/arm/arm.md (*mov_scc): Use arm_comparison_operator_mode
        instead of arm_comparison_operator.
        (*mov_negscc): Likewise.
        (*mov_notscc): Likewise.
        * config/arm/thumb2.md (*thumb2_mov_scc): Likewise.
        (*thumb2_mov_negscc): Likewise.
        (*thumb2_mov_negscc_strict_it): Likewise.
        (*thumb2_mov_notscc): Likewise.
        (*thumb2_mov_notscc_strict_it): Likewise.

2016-02-17  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_internal_mov_immediate):
        Add missing return.

2016-02-17  Eric Botcazou  <ebotcazou@adacore.com>

        * config/visium/visium.c (machine_libfunc_index): New enum.
        (machine_libfuncs): New structure.
        (visium_libfuncs): New static variable.
        (TARGET_INIT_LIBFUNCS): Define to...
        (visium_init_libfuncs): ...this.  New function.
        (expand_block_move_4): Use the appropriate libfunc.
        (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.

2016-02-17  Nick Clifton  <nickc@redhat.com>

        * config/msp430/msp430.c (msp430_mcu_data): Sync with data from
        TI's devices.csv file as of March 2016.

2016-02-16  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        PR Target/48344
        * opts-global.c (handle_common_deferred_options): Introduce and
        initialize two global variables to remember command-line options
        specifying a stack-limiting register.
        * opts.h: Add extern declarations of the two new global variables.
        * emit-rtl.c (init_emit_once): Initialize the stack_limit_rtx
        variable based on the values of the two new global variables.

2016-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR c/69835
        * common.opt (Wnonnull-compare): New warning.
        * doc/invoke.texi (-Wnonnull): Remove text about comparison
        of arguments against NULL.
        (-Wnonnull-compare): Document.
        * Makefile.in (OBJS): Add gimple-ssa-nonnull-compare.o.
        * tree-pass.h (make_pass_warn_nonnull_compare): Declare.
        * passes.def (pass_warn_nonnull_compare): Add.
        * gimple-ssa-nonnull-compare.c: New file.

2016-02-16  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64.c (cortexa57_tunings): Remove
        AARCH64_EXTRA_TUNE_RECIP_SQRT.

2016-02-16  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64.c (use_rsqrt_p): Always use software
        reciprocal sqrt for -mlow-precision-recip-sqrt.

2016-02-16  James Greenhalgh  <james.greenhalgh@arm.com>
            Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/aarch64/aarch64.c (aarch64_expand_vector_init): Refactor,
        always use lane loads to construct non-constant vectors.

2016-02-16  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64.md
        (arch64_sqrdml<SQRDMLH_AS:rdma_as>h_lane<mode>): Fix register
        constraints for operand 3.
        (aarch64_sqrdml<SQRDMLH_AS:rdma_as>h_laneq<mode>): Likewise.

2016-02-16  Jakub Jelinek  <jakub@redhat.com>
            Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69820
        * tree-vect-patterns.c (type_conversion_p): Return false if
        *orig_type is unsigned single precision or boolean.
        (vect_recog_dot_prod_pattern, vect_recog_widen_mult_pattern):
        Formatting fix.

2016-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/69764
        PR rtl-optimization/69771
        * optabs.c (expand_binop): Ensure for shift optabs invalid CONST_INT
        op1 is valid for GET_MODE_INNER (mode) and force it into a reg.

2016-02-16  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69776
        * tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Get alias
        sets from caller.
        (indirect_refs_may_alias_p): Likewise.
        (refs_may_alias_p_1): Pass alias sets as from ao_ref.
        * tree-ssa-sccvn.c (vn_reference_lookup): Also adjust vr alias-set
        according to tbaa_p.
        * tree-ssa-dom.c (lookup_avail_expr): Add tbaa_p flag.
        (optimize_stmt): For redundant store discovery do not allow tbaa.

2016-02-16  Bernd Schmidt  <bschmidt@redhat.com>

        PR tree-optimization/69714
        * tree-ssa-math-opts.c (find_bswap_or_nop): Revert previous change.
        Return NULL if we have irrelevant high bytes on BIG_ENDIAN.

2016-02-16  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-modes.def (CC_FPU, CC_FPU_UNEQ): New modes.
        * config/arc/arc-opts.h (FPU_SP, FPU_SF, FPU_SC, FPU_SD, FPU_DP)
        (FPU_DF, FPU_DC, FPU_DD, FXP_DP): Define.
        * config/arc/arc.c (arc_init): Check FPU options.
        (get_arc_condition_code): Handle new CC_FPU* modes.
        (arc_select_cc_mode): Likewise.
        (arc_conditional_register_usage): Allow 64 bit datum into even-odd
        register pair only. Allow access for ARCv2 accumulator.
        (gen_compare_reg): Whenever we have FPU support use FPU compare
        instructions.
        (arc_reorg): Don't generate brcc insns when FPU compare
        instructions are involved.
        * config/arc/arc.h (TARGET_DPFP): Add TARGET_FP_DPAX condition.
        (TARGET_OPTFPE): Add condition when ARC EM can use optimized
        floating point emulation.
        (ACC_REG_FIRST, ACC_REG_LAST, ACCL_REGNO, ACCH_REGNO): Define.
        (REVERSE_CONDITION): Add new CC_FPU* modes.
        (TARGET_FP_SP_BASE): Define.
        (TARGET_FP_DP_BASE): Likewise.
        (TARGET_FP_SP_FUSED): Likewise.
        (TARGET_FP_DP_FUSED): Likewise.
        (TARGET_FP_SP_CONV): Likewise.
        (TARGET_FP_DP_CONV): Likewise.
        (TARGET_FP_SP_SQRT): Likewise.
        (TARGET_FP_DP_SQRT): Likewise.
        (TARGET_FP_DP_AX): Likewise.
        * config/arc/arc.md (ARCV2_ACC): New constant.
        (type): New fpu type attribute.
        (SDF): Conditional iterator.
        (cstore<mode>, cbranch<mode>): Change expand condition.
        (addsf3, subsf3, mulsf3, adddf3, subdf3, muldf3): New expands,
        handles FPU/FPX cases as well.
        * config/arc/arc.opt (mfpu): New option.
        * config/arc/fpx.md (addsf3_fpx, subsf3_fpx, mulsf3_fpx):
        Renamed.
        (adddf3, muldf3, subdf3): Removed.
        * config/arc/predicates.md (proper_comparison_operator): Recognize
        CC_FPU* modes.
        * config/arc/fpu.md: New file.
        * doc/invoke.texi (ARC Options): Document mfpu option.

2016-02-16  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/69291
        * ifcvt.c (noce_try_store_flag_constants): Re-instantiate
        noce_operand_ok check.

2016-02-16  Tom de Vries  <tom@codesourcery.com>

        PR lto/67709
        * omp-low.c (simd_clone_create): Remove call to
        symtab->call_cgraph_insertion_hooks.

2016-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/69802
        * tree-ssa-reassoc.c (update_range_test): If op is
        SSA_NAME_IS_DEFAULT_DEF, give up unless tem is a positive
        op == 1 test of precision 1 integral op, otherwise handle
        that case as op itself.  Fix up formatting.
        (optimize_range_tests_to_bit_test, optimize_range_tests): Fix
        up formatting.

2016-02-16  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69586
        * tree-vrp.c (register_edge_assert_for_2): Handle all integral
        types for conversion sources.

2016-02-16  Richard Biener  <rguenther@suse.de>

        PR middle-end/69801
        * fold-const.c (operand_equal_p): For COND_EXPR zero operand
        mask OEP_ADDRESS_OF.

2016-02-16  Alan Modra  <amodra@gmail.com>

        PR target/68973
        * config/rs6000/rs6000.md (reload_vsx_from_gprsf): Rewrite splitter.
        (p8_mtvsrd_df, p8_mtvsrd_sf): New.
        (p8_mtvsrd_1, p8_mtvsrd_2): Delete.
        (p8_mtvsrwz): New.
        (p8_mtvsrwz_1, p8_mtvsrwz_2): Delete.
        (p8_xxpermdi_<mode>): Take two DF inputs rather than one TF.
        (p8_fmrgow_<mode>): Likewise.
        (reload_vsx_from_gpr<mode>): Make clobber IF.  Adjust for above
        changes.
        (reload_fpr_from_gpr<mode>): Similarly. Use "d" for op0 constraint.
        (reload_vsx_from_gprsf): Use p8_mtvsrd_sf rather than attempting
        to use movdi_internal64.  Remove op0_di.
        * config/rs6000/vsx.md (vsx_xscvspdpn_directmove): Make op1 SFmode.

2016-02-15  Evandro Menezes  <e.menezes@samsung.com>

        Add support for the FCCMP insn types

        * config/aarch64/aarch64.md (fccmp): Change insn type.
        (fccmpe): Likewise.
        * config/aarch64/thunderx.md (thunderx_fcmp): Add "fccmp{s,d}" types.
        * config/arm/cortex-a53.md (cortex_a53_fpalu): Likewise.
        * config/arm/cortex-a57.md (cortex_a57_fp_cmp): Likewise.
        * config/arm/xgene1.md (xgene1_fcmp): Likewise.
        * config/arm/exynos-m1.md (exynos_m1_fp_ccmp): New insn reservation.
        * config/arm/types.md (fccmps): Add new insn type.
        (fccmpd): Likewise.

2016-02-15  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * alias.c (get_alias_set): Fix a typo in comment.

2016-02-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69595
        * match.pd: Complete range test simplification to true.

2016-02-15  Bernd Schmidt  <bschmidt@redhat.com>

        PR rtl-optimization/69648
        * lra-constraints.c (update_ebb_live_info): Don't remove sets of
        pic_offset_table_rtx.

        PR rtl-optimization/69752
        * ira.c (update_equiv_regs): When looking for more than a single SET,
        also take other side effects into account.

2016-02-15  Marcin Kościelnicki  <koriakin@0x04.net>

        * config/s390/s390.c (s390_function_profiler): Add a new sequence
        for z900+ CPUs in 31-bit mode.

2016-02-15  Marcin Kościelnicki  <koriakin@0x04.net>

        * common/config/s390/s390-common.c (s390_supports_split_stack):
        New function.
        (TARGET_SUPPORTS_SPLIT_STACK): New macro.
        * config/s390/s390-protos.h: Add s390_expand_split_stack_prologue.
        * config/s390/s390.c (struct machine_function): New field
        split_stack_varargs_pointer.
        (s390_register_info): Mark r12 as clobbered if it'll be used as temp
        in s390_emit_prologue.
        (s390_emit_prologue): Use r12 as temp if r1 is taken by split-stack
        vararg pointer.
        (morestack_ref): New global.
        (SPLIT_STACK_AVAILABLE): New macro.
        (s390_expand_split_stack_prologue): New function.
        (s390_live_on_entry): New function.
        (s390_va_start): Use split-stack vararg pointer if appropriate.
        (s390_asm_file_end): Emit the split-stack note sections.
        (TARGET_EXTRA_LIVE_ON_ENTRY): New macro.
        * config/s390/s390.md (UNSPEC_STACK_CHECK): New unspec.
        (UNSPECV_SPLIT_STACK_CALL): New unspec.
        (UNSPECV_SPLIT_STACK_DATA): New unspec.
        (split_stack_prologue): New expand.
        (split_stack_space_check): New expand.
        (split_stack_data): New insn.
        (split_stack_call): New expand.
        (split_stack_call_*): New insn.
        (split_stack_cond_call): New expand.
        (split_stack_cond_call_*): New insn.

2016-02-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69783
        * tree-vect-data-refs.c (vect_prune_runtime_alias_test_list):
        Add trivially correct cases.

2016-02-15  Tom de Vries  <tom@codesourcery.com>

        PR lto/69655
        * lto-cgraph.c (input_offload_tables): Add and handle bool parameter
        do_force_output.
        * lto-streamer.h (input_offload_tables): Add and handle bool parameter.

2016-02-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69776
        * tree-ssa-sccvn.h (vn_reference_lookup): Adjust prototype.
        * tree-ssa-sccvn.c (vn_reference_lookup): Add parameter to
        indicate whether we can use TBAA to disambiguate against stores.
        Use alias-set zero if not.
        (visit_reference_op_store): Do not use TBAA when looking up
        redundant stores.
        * tree-ssa-pre.c (compute_avail): Use TBAA here.
        (eliminate_dom_walker::before_dom_children): But not when looking
        up redundant stores.

2016-02-14  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.md (absqi2, absghi2, bswaphi2, bswapsi2, bswapdi2): New.

2016-02-14  Venkataramanan Kumar  <venkataramanan.kumar@amd.com>

        *  config/i386/znver1.md
        (znver1_pop, znver1_pop_mem,
        znver1_load_imov_double_store,
        znver1_load_imov_direct_store,
        znver1_load_imov_direct_load,
        znver1_load_imov_double_load): Add new.
        (znver1_insn, znver1_insn_load): Add icmov type.
        (znver1_sseavx_fma,
        znver1_sseavx_fma_load,
        znver1_avx256_fma,
        znver1_avx256_fma_load): Fix pipe usage.

2016-02-14  Alan Modra  <amodra@gmail.com>

        PR target/68973
        * reload.c (find_reloads_address_1): For pre/post-inc/dec
        with an invalid hard reg, reload just the reg not the entire
        pre/post-inc/dec address expression.

2016-02-13  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/67260
        * config/sh/sh.md (sibcall_value_pcrel): Replace =&k scratch reg with
        fixed R1_REG scratch reg.
        (sibcall_value_pcrel_fdpic): Likewise.

2016-02-13  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/67636
        PR target/64345
        * config/sh/sh.md (*zero_extract_3): New insn_and_split pattern.

2016-02-12  Walter Lee  <walt@tilera.com>

        * config/tilepro/t-tilepro: Replace CC_FOR_BUILD with CXX_FOR_BUILD.
        * config/tilegx/t-tilegx: Likewise.

2016-02-12  David Malcolm  <dmalcolm@redhat.com>

        PR other/69554
        * diagnostic-show-locus.c (struct line_span): New struct.
        (layout::get_first_line): Delete.
        (layout::get_last_line): Delete.
        (layout::get_num_line_spans): New member function.
        (layout::get_line_span): Likewise.
        (layout::print_heading_for_line_span_index_p): Likewise.
        (layout::get_expanded_location): Likewise.
        (layout::calculate_line_spans): Likewise.
        (layout::m_first_line): Delete.
        (layout::m_last_line): Delete.
        (layout::m_line_spans): New field.
        (layout::layout): Update comment.  Replace m_first_line and
        m_last_line with m_line_spans, replacing their initialization
        with a call to calculate_line_spans.
        (diagnostic_show_locus): When printing source lines and
        annotations, rather than looping over a single span
        of lines, instead loop over each line_span within
        the layout, with an inner loop over the lines within them.
        Call the context's start_span callback when changing line spans.
        * diagnostic.c (diagnostic_initialize): Initialize start_span.
        (diagnostic_build_prefix): Break out the building of the location
        part of the string into...
        (diagnostic_get_location_text): ...this new function, rewriting
        it from nested ternary expressions to a sequence of "if"
        statements.
        (default_diagnostic_start_span_fn): New function.
        * diagnostic.h (diagnostic_start_span_fn): New typedef.
        (diagnostic_context::start_span): New field.
        (default_diagnostic_start_span_fn): New prototype.

2016-02-12  David Malcolm  <dmalcolm@redhat.com>

        PR driver/69779
        * gcc.c (driver::finalize): Fix cleanup of "specs".

2016-02-12  David Malcolm  <dmalcolm@redhat.com>

        PR driver/69265
        PR driver/69453
        * gcc.c (driver::driver): Initialize m_option_suggestions.
        (driver::~driver): Clean up m_option_suggestions.
        (suggest_option): Convert to...
        (driver::suggest_option): ...this, and split out into
        driver::build_option_suggestions and find_closest_string.
        (driver::build_option_suggestions): New function, from
        first half of suggest_option.  Special-case
        OPT_fsanitize_ and OPT_fsanitize_recover_, making use of
        the sanitizer_opts array.  For options of enum types, add the
        various enum values to the candidate strings.
        (driver::handle_unrecognized_options): Remove "const".
        * gcc.h (driver::handle_unrecognized_options): Likewise.
        (driver::build_option_suggestions): New decl.
        (driver::suggest_option): New decl.
        (driver::m_option_suggestions): New field.
        * opts-common.c (add_misspelling_candidates): New function.
        * opts.c (sanitizer_opts): Remove decl of struct sanitizer_opts_s
        and make non-static.
        * opts.h (sanitizer_opts): New array decl.
        (add_misspelling_candidates): New function decl.
        * spellcheck.c (find_closest_string): New function.
        * spellcheck.h (find_closest_string): New function decl.

2016-02-12  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/69764
        PR rtl-optimization/69771
        * optabs.c (expand_binop_directly): For shift_optab_p, force
        convert_modes with VOIDmode if xop1 has VOIDmode.

2016-02-12  Ilya Enkovich  <enkovich.gnu@gmail.com>

        PR target/69729
        * lto-streamer-out.c (lto_output): Use thunk.add_pointer_bounds_args
        to correctly determine instrumentation thunks.

2016-02-12  Jakub Jelinek  <jakub@redhat.com>

        PR ipa/69241
        * ipa-split.c (split_function): If split part returns TREE_ADDRESSABLE
        type by reference, force lhs on the call.

        PR ipa/68672
        * ipa-split.c (split_function): Don't compute/use main_part_return_p.
        Compute retval and retbnd early in all cases if split_part_return_p
        and return_bb is not EXIT.  Remove all clobber stmts and reset
        all debug stmts that refer to SSA_NAMEs defined in split part,
        except if it is retval, in that case replace the old retval with the
        lhs of the call to the split part.

2016-02-12  Kugan Vivekanandarajah  <kuganv@linaro.org>

        revert:
        2016-02-12  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/66726
        * tree-ssa-reassoc.c (optimize_range_tests): Handle tcc_compare stmt
        whose result is used in PHI.
        (maybe_optimize_range_tests): Likewise.
        (final_range_test_p): Likweise.

2016-02-12  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/66726
        * tree-ssa-reassoc.c (optimize_range_tests): Handle tcc_compare stmt
        whose result is used in PHI.
        (maybe_optimize_range_tests): Likewise.
        (final_range_test_p): Likweise.

2016-02-12  Jakub Jelinek  <jakub@redhat.com>

        * cgraph.c: Spelling fixes - behaviour -> behavior and
        neighbour -> neighbor.
        * target.def: Likewise.
        * sel-sched.c: Likewise.
        * config/mips/mips.c: Likewise.
        * config/arc/arc.md: Likewise.
        * config/arm/cortex-a57.md: Likewise.
        * config/arm/arm.c: Likewise.
        * config/arm/neon.md: Likewise.
        * config/arm/arm-c.c: Likewise.
        * config/vms/vms-c.c: Likewise.
        * config/s390/s390.c: Likewise.
        * config/i386/znver1.md: Likewise.
        * config/i386/i386.c: Likewise.
        * config/ia64/hpux-unix2003.h: Likewise.
        * config/msp430/msp430.md: Likewise.
        * config/rx/rx.c: Likewise.
        * config/rx/rx.md: Likewise.
        * config/aarch64/aarch64-simd.md: Likewise.
        * config/aarch64/aarch64.c: Likewise.
        * config/nvptx/nvptx.c: Likewise.
        * config/bfin/bfin.c: Likewise.
        * config/cris/cris.opt: Likewise.
        * config/rs6000/rs6000.c: Likewise.
        * target.h: Likewise.
        * spellcheck.c: Likewise.
        * ira-build.c: Likewise.
        * tree-inline.c: Likewise.
        * builtins.c: Likewise.
        * lra-constraints.c: Likewise.
        * explow.c: Likewise.
        * hwint.h: Likewise.
        * targhooks.c: Likewise.
        * tree-vect-data-refs.c: Likewise.
        * expr.c: Likewise.
        * doc/tm.texi: Likewise.
        * doc/extend.texi: Likewise.
        * doc/install.texi: Likewise.
        * doc/md.texi: Likewise.
        * tree-ssa-tail-merge.c: Likewise.
        * sched-int.h: Likewise.
        * match.pd: Likewise.
        * sched-ebb.c: Likewise.
        * target.def (omit_struct_return_reg): Likewise.
        * gimple-ssa-isolate-paths.c: Likewise.
        (find_implicit_erroneous_behaviour): Renamed to...
        (find_implicit_erroneous_behavior): ... this.
        (find_explicit_erroneous_behaviour): Renamed to...
        (find_explicit_erroneous_behavior): ... this.
        (gimple_ssa_isolate_erroneous_paths): Adjust caller.

2016-02-11  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/64682
        PR rtl-optimization/69567
        PR rtl-optimization/69737
        * combine.c (distribute_notes) <REG_DEAD>: If the register is set
        in I2 as well, just lose it.

2016-02-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (aarch64_last_printed_arch_string):
        New variable.
        (aarch64_last_printed_tune_string): Likewise.
        (aarch64_declare_function_name): Only output .arch assembler
        directive if it will be different from the previously output
        directive.  Same for .tune comment but only if -dA is set.
        (aarch64_start_file): New function.
        (TARGET_ASM_FILE_START): Define.

2016-02-11  David Malcolm  <dmalcolm@redhat.com>

        PR plugins/69758
        * Makefile.in (PLUGIN_HEADERS): Add params.list.

2016-02-11  Jakub Jelinek  <jakub@redhat.com>

        PR target/65313
        * tree-vect-slp.c (vect_schedule_slp_instance): Avoid
        -Wmaybe-uninitialized warning.

2016-02-11  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/69713
        * config/sh/sh.md (casesi_worker_0): Add T_REG use.

2016-02-11  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/69291
        * ifcvt.c (noce_try_store_flag_constants): Do not allow
        subexpressions affected by changing the result.

2016-02-10  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/69148
        * lra-constraints.c (curr_insn_transform): Find in/out operands
        for secondary memory moves.  Update dups.

2016-02-10  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR tree-optimization/69652
        * tree-vect-loop.c (optimize_mask_stores): Move declaration of STMT1
        to nested loop, did source re-formatting, skip debug statements,
        add check on statement with volatile operand, remove dead scalar
        statements.

2016-02-10  Jakub Jelinek  <jakub@redhat.com>
            Patrick Palka  <ppalka@gcc.gnu.org>

        PR ipa/69241
        PR c++/69649
        * gimplify.c (gimplify_modify_expr): Set lhs even for noreturn
        calls if the return type is TREE_ADDRESSABLE.
        * cgraphunit.c (cgraph_node::expand_thunk): Likewise.
        * ipa-split.c (split_function): Fix doubled "we" in comment.
        Use void return type for the split part even if
        !split_point->split_part_set_retval.

2016-02-10  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/68021
        * tree-ssa-loop-ivopts.c (get_computation_aff): Set ratio to 1 if
        when computing the value of biv cand by itself.

2016-02-10  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (cortexa53_tunings): Enable AES fusion.
        (cortexa57_tunings): Likewise.
        (cortexa72_tunings): Likewise.
        (arch_macro_fusion_pair_p): Add support for AES fusion.
        * config/aarch64/aarch64-fusion-pairs.def: Add AES_AESMC entry.
        * config/arm/aarch-common.c (aarch_crypto_can_dual_issue):
        Allow virtual registers before reload so early scheduling works.
        * config/arm/cortex-a57.md (cortex_a57_crypto_simple): Use
        correct latency and pipeline.
        (cortex_a57_crypto_complex): Likewise.
        (cortex_a57_crypto_xor): Likewise.
        (define_bypass): Add AES bypass.

2016-02-10  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69726
        * passes.def: Add DCE pass before late uninit.
        * match.pd: Add A ? B : (!A ? C : X) -> A ? B : C patterns to
        really fixup if-conversions job.

2016-02-10  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.c (arm_cortex_a53_tune): Enable AES fusion.
        (arm_cortex_a57_tune): Likewise.
        (aarch_macro_fusion_pair_p): Add support for AES fusion.
        * config/arm/arm-protos.h (fuse_ops): Add FUSE_AES_AESMC.

2016-02-10  Eric Botcazou  <ebotcazou@adacore.com>

        * timevar.def (TV_PHASE_DBGINFO): Delete.
        (TV_PHASE_CHECK_DBGINFO): Likewise.
        * varpool.c (varpool_node::assemble_decl): Do not change timevar.

2016-02-10  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69719
        * tree-vect-data-refs.c (vect_prune_runtime_alias_test_list):
        Adjust previous fix by ensuring that dr_a1 is left of dr_a2.

2016-02-09  Andrew Pinski  <apinski@cavium.com>

        PR tree-opt/69282
        * optabs-tree.c (expand_vec_cond_expr_p): Don't early return if
        get_vcond_mask_icode returns false.

2016-02-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/68404
        * config/rs6000/predicates.md (fusion_gpr_addis): Prevent fusing
        an ADDIS that adds a pointer to a large constant that sets the
        upper16 bits with a load operation.

2016-02-09  Charles Baylis  <charles.baylis@linaro.org>

        PR target/68532
        * config/arm/arm.c (arm_evpc_neon_vzip): Allow for big endian lane
        order.
        * config/arm/arm_neon.h (vzipq_s8): Adjust shuffle patterns for big
        endian.
        (vzipq_s16): Likewise.
        (vzipq_s32): Likewise.
        (vzipq_f32): Likewise.
        (vzipq_u8): Likewise.
        (vzipq_u16): Likewise.
        (vzipq_u32): Likewise.
        (vzipq_p8): Likewise.
        (vzipq_p16): Likewise.

2016-02-09  Charles Baylis  <charles.baylis@linaro.org>

        PR target/68532
        * config/arm/arm.c (neon_endian_lane_map): New function.
        (neon_vector_pair_endian_lane_map): New function.
        (arm_evpc_neon_vuzp): Allow for big endian lane order.
        * config/arm/arm_neon.h (vuzpq_s8): Adjust shuffle patterns for big
        endian.
        (vuzpq_s16): Likewise.
        (vuzpq_s32): Likewise.
        (vuzpq_f32): Likewise.
        (vuzpq_u8): Likewise.
        (vuzpq_u16): Likewise.
        (vuzpq_u32): Likewise.
        (vuzpq_p8): Likewise.
        (vuzpq_p16): Likewise.

2016-02-11  Alexandre Oliva  <aoliva@redhat.com>

        PR target/69634
        * regstat.c (regstat_bb_compute_calls_crossed): Disregard
        debug insns.

2016-02-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (insv<mode>_1): Use gen_int_mode to
        truncate const_int operand 1 to QImode.

2016-02-09  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple-ssa-backprop.c (optimize_phi): Do not replace an argument
        corresponding to an abnormal edge.

2016-02-09  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/69599
        * tree-ssa-structalias.c (fndecl_maybe_in_other_partition): New
        function.
        (find_func_aliases_for_builtin_call, find_func_clobbers)
        (ipa_pta_execute):  Handle case that foo and foo._0 are not in same lto
        partition.

2016-02-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69715
        * tree-ssa.c (execute_update_addresses_taken): Mark non-decl
        LHS on calls as non-rewritable.

2016-02-09  Tom de Vries  <tom@codesourcery.com>

        PR lto/69707
        * lto-wrapper.c (append_diag_options): New function.
        (compile_offload_image): Call append_diag_options.

2016-02-08  Sandra Loosemore  <sandra@codesourcery.com>

        PR other/69722
        * doc/extend.texi (Flag Output Operands): Correct sectioning.
        Minor copy-edit to fix verb tenses.

2016-02-08  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/69209
        * ipa-split.c (split_function): If split part is not
        returning retval, retval has gimple type but is not
        gimple value, force it into a SSA_NAME first.

2016-02-08  Nicklas Bo Jensen  <nbjensen@gmail.com>

        * doc/tree-ssa.texi (Preserving the virtual SSA form): Remove
        outdated section.

2016-02-08  Jason Merrill  <jason@redhat.com>

        PR c++/69631
        * convert.c (convert_to_integer_1): Check dofold on truncation
        distribution.
        (convert_to_pointer_maybe_fold, convert_to_real_maybe_fold)
        (convert_to_integer_maybe_fold, convert_to_complex_maybe_fold):
        Rename from *_nofold.
        * convert.h (convert_to_pointer_nofold, convert_to_integer_nofold)
        (convert_to_real_nofold, convert_to_complex_nofold): New inlines.

2016-02-08  Bernd Schmidt  <bschmidt@redhat.com>

        PR target/60410
        * tree.c (build_common_tree_nodes): Remove short_double argument.
        All callers changed.
        * tree.h (build_common_tree_nodes): Adjust declaration.
        * doc/invoke.texi (-fshort-double): Remove documentation.
        * config/mips/t-img-elf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES,
        MULTILIB_EXCEPTIONS): Remove -fshort-double variant.
        * lto-wrapper.c (merge_and_complain, append_compiler_options)
        (append_linker_options): Don't handle OPT_fshort_double.

        PR rtl-optimization/68730
        * lra-remat.c (insn_to_cand_activation): New static variable.
        (lra_remat): Allocate and free it.
        (create_cand): New arg activation. Initialize a field in
        insn_to_cand_activation if it is nonnull.
        (create_cands): Pass the activation insn to create_cand when making
        a candidate involving an output reload.  Reorganize code a little.
        (do_remat): Keep track of active status of candidates in a separate
        bitmap.

2016-02-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69719
        * tree-vect-data-refs.c (vect_prune_runtime_alias_test_list):
        Properly use absolute of the difference of the two offsets to
        compare or adjust the segment length.

2016-02-08  Richard Biener  <rguenther@suse.de>
            Jeff Law  <law@redhat.com>

        PR target/68273
        * tree-ssanames.c (make_ssa_name_fn): Always use unqualified
        types for anonymous SSA names.

2016-02-08   Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/69274
        * ira.c (ira_setup_alts): Do not change recog_data.operand order.

2016-02-08  Jeff Law  <law@redhat.com>

        PR tree-optimization/65917
        * tree-ssa-dom.c (record_temporary_equivalences): Record both
        equivalences from if (x == y) style conditionals.
        (loop_depth_of_name): Remove.
        (record_equality): Remove loop depth check.
        * tree-ssa-scopedtables.h (const_and_copies): Refine comments.
        (const_and_copies::record_const_or_copy_raw): New member function.
        * tree-ssa-scopedtables.c
        (const_and_copies::record_const_or_copy_raw): New, factored out of
        (const_and_copies::record_const_or_copy): Call new member function.

2016-02-05  Jeff Law  <law@redhat.com>

        PR tree-optimization/68541
        * gimple-ssa-split-paths.c: Include tree-cfg.h and params.h.
        (count_stmts_in_block): New function.
        (poor_ifcvt_candidate_code): Likewise.
        (is_feasible_trace): Add some heuristics to determine when path
        splitting is profitable.
        (find_block_to_duplicate_for_splitting_paths): Make sure the graph
        is a diamond with a single exit.

2016-02-05  Martin Sebor  <msebor@redhat.com>

        PR c++/69662
        * doc/invoke.texi: Update -Wplacement-new to take an optional
        argument.

2016-02-06  Richard Henderson  <rth@redhat.com>

        PR c/69643
        * tree.c (tree_nop_conversion_p): Do not strip casts into or
        out of non-standard address spaces.

2016-02-05  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/69691
        * lra-eliminations.c (move_plus_up): Don't add the addend twice.

2016-02-05  Pat Haugen  <pthaugen@us.ibm.com>

        * config/rs6000/crypto.md (crypto_vpermxor_<mode>): Correct insn type.
        * config/rs6000/rs6000.md (mov<mode>_hardfloat): Likewise.
        (*ieee128_mfvsrd_64bit): Likewise.
        (*ieee128_mfvsrd_32bit): Likewise.

2016-02-05  Ilya Enkovich  <enkovich.gnu@gmail.com>

        PR target/69369
        Revert r232560:
        2016-01-19  Jan Hubicka  <hubicka@ucw.cz>

        * cgraphunit.c (cgraph_node::reset): Clear thunk info and
        instrumented_version.

2016-01-05  Jeremy Bennett  <jeremy.bennett@embecosm.com>

        * doc/invoke.texi (Optimize Options): In table of --param options
        rename second occurrence of tracer-min-branch-ratio to
        tracer-min-branch-probability, rename
        tracer-min-branch-ratio-feedback to
        tracer-min-branch-probability-feedback and clarify description,
        rename sched-spec-state-edge-prob-cutoff to
        sched-state-edge-prob-cutoff, rename selsched-max-insns-to-rename
        to selsched-insns-to-rename, rename lto-minpartition to
        lto-min-partition, delete reorder-blocks-duplicate and
        reorder-blocks-duplicate-feedback.

2016-02-05  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_register_info_set_ranges): Remove
        superfluous loops.

2016-02-05  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * doc/extend.texi: S/390: Correct some typos.

2016-02-05  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        * config/s390/s390.c (s390_emit_call): Add missing 64 bit check.

2016-02-05  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/69625
        * config/s390/s390.c (SAVE_SLOT_NONE, SAVE_SLOT_STACK): New defines.
        (s390_register_info_gprtofpr): Use new macros above.
        (s390_register_info_stdarg_fpr): Adjust max_fpr to better match
        its name.
        (s390_register_info_stdarg_gpr): Adjust max_gpr to better match
        its name.  Adjust restore and save gpr ranges.
        (s390_register_info_set_ranges): New function.
        (s390_register_info): Use new macros above.  Call
        s390_register_info_set_ranges.
        (s390_optimize_register_info): Likewise.
        (s390_hard_regno_rename_ok): Use new macros.
        (s390_hard_regno_scratch_ok): Likewise.
        (s390_emit_epilogue): Likewise.
        (s390_can_use_return_insn): Likewise.
        (s390_optimize_prologue): Likewise.
        * config/s390/s390.md (GPR2_REGNUM, GPR6_REGNUM): New constants.

2016-02-05  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/69677
        * config/i386/i386.c (convert_scalars_to_vector): Readd stack
        alignment fixes.
        (ix86_option_override_internal): Disable TARGET_STV even for
        -m{incoming,preferred}-stack-boundary=3.

2016-02-03  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * config.gcc: Mark deprecated rtems targets as obsolete.

2016-02-04  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/64682
        PR rtl-optimization/69567
        * combine.c (distribute_notes) <REG_DEAD>: Place the death note
        before I2 only if the register is both used and set in I2.

2016-02-04  DJ Delorie  <dj@redhat.com>

        * config/msp430/msp430.c (msp430_start_function): Add function type.

2016-02-04  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/69368
        * tree-dfa.c (get_ref_base_and_extent): Remove unreachable code.

2016-02-04  Uros Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/69577
        Revert:
        2015-10-29  Richard Henderson  <rth@redhat.com>

        PR target/68124
        PR rtl-opt/67609
        * config/i386/i386.c (ix86_cannot_change_mode_class): Tighten
        sse check to the exact conditions of PR 67609.

2016-02-04  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/69667
        * config/rs6000/rs6000.md (mov<mode>_64bit_dm): Use 'd' constraint
        instead of 'ws', and 'wh' instead of 'wm' since TFmode/IFmode are
        not allowed into the traditional Altivec registers.
        (movtd_64bit_nodm): Likewise.
        (mov<mode>_32bit, FMOVE128_FPR iterator): Likewise.

2016-02-04  David Malcolm  <dmalcolm@redhat.com>

        * config/aarch64/cortex-a57-fma-steering.c
        (aarch64_register_fma_steering): Remove "static" from arguments
        to register_pass.

2016-02-04  Wilco Dijkstra  <wdijkstr@arm.com>

        PR target/69619
        * ccmp.c (expand_ccmp_expr_1): Avoid evaluating gs0/gs1
        twice when complex.

2016-02-04  Mike Frysinger  <vapier@gentoo.org>

        * doc/invoke.texi: Delete -mno-fma4.

2016-02-04  Richard Sandiford  <richard.sandiford@arm.com>

        PR rtl-optimization/69577
        * reginfo.c (record_subregs_of_mode): Add a partial_def parameter.
        (find_subregs_of_mode): Update accordingly.  Iterate over partial
        definitions.

2016-02-04  Alan Lawrence  <alan.lawrence@arm.com>

        * config/arm/arm-protos.h (neon_reinterpret): Remove.
        * config/arm/arm.c (neon_reinterpret): Remove.
        * config/arm/arm_neon_builtins.def (vreinterpretv8qi, vreinterpretv4hi,
        vreinterpretv2si, vreinterpretv2sf, vreinterpretdi, vreinterpretv16qi,
        vreinterpretv8hi, vreinterpretv4si, vreinterpretv4sf, vreinterpretv2di,
        vreinterpretti): Remove.
        * config/arm/neon.md (neon_vreinterpretv8qi<mode>,
        neon_vreinterpretv4hi<mode>, neon_vreinterpretv2si<mode>,
        neon_vreinterpretv2sf<mode>, neon_vreinterpretdi<mode>,
        neon_vreinterpretti<mode>, neon_vreinterpretv16qi<mode>,
        neon_vreinterpretv8hi<mode>, neon_vreinterpretv4si<mode>,
        neon_vreinterpretv4sf<mode>, neon_vreinterpretv2di<mode>): Remove.
        * config/arm/arm_neon.h (vreinterpret_p8_p16, vreinterpret_p8_f32,
        vreinterpret_p8_p64, vreinterpret_p8_s64, vreinterpret_p8_u64,
        vreinterpret_p8_s8, vreinterpret_p8_s16, vreinterpret_p8_s32,
        vreinterpret_p8_u8, vreinterpret_p8_u16, vreinterpret_p8_u32,
        vreinterpret_p16_p8, vreinterpret_p16_f32, vreinterpret_p16_p64,
        vreinterpret_p16_s64, vreinterpret_p16_u64, vreinterpret_p16_s8,
        vreinterpret_p16_s16, vreinterpret_p16_s32, vreinterpret_p16_u8,
        vreinterpret_p16_u16, vreinterpret_p16_u32, vreinterpret_f32_p8,
        vreinterpret_f32_p16, vreinterpret_f32_p64, vreinterpret_f32_s64,
        vreinterpret_f32_u64, vreinterpret_f32_s8, vreinterpret_f32_s16,
        vreinterpret_f32_s32, vreinterpret_f32_u8, vreinterpret_f32_u16,
        vreinterpret_f32_u32, vreinterpret_p64_p8, vreinterpret_p64_p16,
        vreinterpret_p64_f32, vreinterpret_p64_s64, vreinterpret_p64_u64,
        vreinterpret_p64_s8, vreinterpret_p64_s16, vreinterpret_p64_s32,
        vreinterpret_p64_u8, vreinterpret_p64_u16, vreinterpret_p64_u32,
        vreinterpret_s64_p8, vreinterpret_s64_p16, vreinterpret_s64_f32,
        vreinterpret_s64_p64, vreinterpret_s64_u64, vreinterpret_s64_s8,
        vreinterpret_s64_s16, vreinterpret_s64_s32, vreinterpret_s64_u8,
        vreinterpret_s64_u16, vreinterpret_s64_u32, vreinterpret_u64_p8,
        vreinterpret_u64_p16, vreinterpret_u64_f32, vreinterpret_u64_p64,
        vreinterpret_u64_s64, vreinterpret_u64_s8, vreinterpret_u64_s16,
        vreinterpret_u64_s32, vreinterpret_u64_u8, vreinterpret_u64_u16,
        vreinterpret_u64_u32, vreinterpret_s8_p8, vreinterpret_s8_p16,
        vreinterpret_s8_f32, vreinterpret_s8_p64, vreinterpret_s8_s64,
        vreinterpret_s8_u64, vreinterpret_s8_s16, vreinterpret_s8_s32,
        vreinterpret_s8_u8, vreinterpret_s8_u16, vreinterpret_s8_u32,
        vreinterpret_s16_p8, vreinterpret_s16_p16, vreinterpret_s16_f32,
        vreinterpret_s16_p64, vreinterpret_s16_s64, vreinterpret_s16_u64,
        vreinterpret_s16_s8, vreinterpret_s16_s32, vreinterpret_s16_u8,
        vreinterpret_s16_u16, vreinterpret_s16_u32, vreinterpret_s32_p8,
        vreinterpret_s32_p16, vreinterpret_s32_f32, vreinterpret_s32_p64,
        vreinterpret_s32_s64, vreinterpret_s32_u64, vreinterpret_s32_s8,
        vreinterpret_s32_s16, vreinterpret_s32_u8, vreinterpret_s32_u16,
        vreinterpret_s32_u32, vreinterpret_u8_p8, vreinterpret_u8_p16,
        vreinterpret_u8_f32, vreinterpret_u8_p64, vreinterpret_u8_s64,
        vreinterpret_u8_u64, vreinterpret_u8_s8, vreinterpret_u8_s16,
        vreinterpret_u8_s32, vreinterpret_u8_u16, vreinterpret_u8_u32,
        vreinterpret_u16_p8, vreinterpret_u16_p16, vreinterpret_u16_f32,
        vreinterpret_u16_p64, vreinterpret_u16_s64, vreinterpret_u16_u64,
        vreinterpret_u16_s8, vreinterpret_u16_s16, vreinterpret_u16_s32,
        vreinterpret_u16_u8, vreinterpret_u16_u32, vreinterpret_u32_p8,
        vreinterpret_u32_p16, vreinterpret_u32_f32, vreinterpret_u32_p64,
        vreinterpret_u32_s64, vreinterpret_u32_u64, vreinterpret_u32_s8,
        vreinterpret_u32_s16, vreinterpret_u32_s32, vreinterpret_u32_u8,
        vreinterpret_u32_u16, vreinterpretq_p8_p16, vreinterpretq_p8_f32,
        vreinterpretq_p8_p64, vreinterpretq_p8_p128, vreinterpretq_p8_s64,
        vreinterpretq_p8_u64, vreinterpretq_p8_s8, vreinterpretq_p8_s16,
        vreinterpretq_p8_s32, vreinterpretq_p8_u8, vreinterpretq_p8_u16,
        vreinterpretq_p8_u32, vreinterpretq_p16_p8, vreinterpretq_p16_f32,
        vreinterpretq_p16_p64, vreinterpretq_p16_p128, vreinterpretq_p16_s64,
        vreinterpretq_p16_u64, vreinterpretq_p16_s8, vreinterpretq_p16_s16,
        vreinterpretq_p16_s32, vreinterpretq_p16_u8, vreinterpretq_p16_u16,
        vreinterpretq_p16_u32, vreinterpretq_f32_p8, vreinterpretq_f32_p16,
        vreinterpretq_f32_p64, vreinterpretq_f32_p128, vreinterpretq_f32_s64,
        vreinterpretq_f32_u64, vreinterpretq_f32_s8, vreinterpretq_f32_s16,
        vreinterpretq_f32_s32, vreinterpretq_f32_u8, vreinterpretq_f32_u16,
        vreinterpretq_f32_u32, vreinterpretq_p64_p8, vreinterpretq_p64_p16,
        vreinterpretq_p64_f32, vreinterpretq_p64_p128, vreinterpretq_p64_s64,
        vreinterpretq_p64_u64, vreinterpretq_p64_s8, vreinterpretq_p64_s16,
        vreinterpretq_p64_s32, vreinterpretq_p64_u8, vreinterpretq_p64_u16,
        vreinterpretq_p64_u32, vreinterpretq_p128_p8, vreinterpretq_p128_p16,
        vreinterpretq_p128_f32, vreinterpretq_p128_p64, vreinterpretq_p128_s64,
        vreinterpretq_p128_u64, vreinterpretq_p128_s8, vreinterpretq_p128_s16,
        vreinterpretq_p128_s32, vreinterpretq_p128_u8, vreinterpretq_p128_u16,
        vreinterpretq_p128_u32, vreinterpretq_s64_p8, vreinterpretq_s64_p16,
        vreinterpretq_s64_f32, vreinterpretq_s64_p64, vreinterpretq_s64_p128,
        vreinterpretq_s64_u64, vreinterpretq_s64_s8, vreinterpretq_s64_s16,
        vreinterpretq_s64_s32, vreinterpretq_s64_u8, vreinterpretq_s64_u16,
        vreinterpretq_s64_u32, vreinterpretq_u64_p8, vreinterpretq_u64_p16,
        vreinterpretq_u64_f32, vreinterpretq_u64_p64, vreinterpretq_u64_p128,
        vreinterpretq_u64_s64, vreinterpretq_u64_s8, vreinterpretq_u64_s16,
        vreinterpretq_u64_s32, vreinterpretq_u64_u8, vreinterpretq_u64_u16,
        vreinterpretq_u64_u32, vreinterpretq_s8_p8, vreinterpretq_s8_p16,
        vreinterpretq_s8_f32, vreinterpretq_s8_p64, vreinterpretq_s8_p128,
        vreinterpretq_s8_s64, vreinterpretq_s8_u64, vreinterpretq_s8_s16,
        vreinterpretq_s8_s32, vreinterpretq_s8_u8, vreinterpretq_s8_u16,
        vreinterpretq_s8_u32, vreinterpretq_s16_p8, vreinterpretq_s16_p16,
        vreinterpretq_s16_f32, vreinterpretq_s16_p64, vreinterpretq_s16_p128,
        vreinterpretq_s16_s64, vreinterpretq_s16_u64, vreinterpretq_s16_s8,
        vreinterpretq_s16_s32, vreinterpretq_s16_u8, vreinterpretq_s16_u16,
        vreinterpretq_s16_u32, vreinterpretq_s32_p8, vreinterpretq_s32_p16,
        vreinterpretq_s32_f16, vreinterpretq_s32_f32, vreinterpretq_s32_p64,
        vreinterpretq_s32_p128, vreinterpretq_s32_s64, vreinterpretq_s32_u64,
        vreinterpretq_s32_s8, vreinterpretq_s32_s16, vreinterpretq_s32_u8,
        vreinterpretq_s32_u16, vreinterpretq_s32_u32, vreinterpretq_u8_p8,
        vreinterpretq_u8_p16, vreinterpretq_u8_f32, vreinterpretq_u8_p64,
        vreinterpretq_u8_p128, vreinterpretq_u8_s64, vreinterpretq_u8_u64,
        vreinterpretq_u8_s8, vreinterpretq_u8_s16, vreinterpretq_u8_s32,
        vreinterpretq_u8_u16, vreinterpretq_u8_u32, vreinterpretq_u16_p8,
        vreinterpretq_u16_p16, vreinterpretq_u16_f32, vreinterpretq_u16_p64,
        vreinterpretq_u16_p128, vreinterpretq_u16_s64, vreinterpretq_u16_u64,
        vreinterpretq_u16_s8, vreinterpretq_u16_s16, vreinterpretq_u16_s32,
        vreinterpretq_u16_u8, vreinterpretq_u16_u32, vreinterpretq_u32_p8,
        vreinterpretq_u32_p16, vreinterpretq_u32_f32, vreinterpretq_u32_p64,
        vreinterpretq_u32_p128, vreinterpretq_u32_s64, vreinterpretq_u32_u64,
        vreinterpretq_u32_s8, vreinterpretq_u32_s16, vreinterpretq_u32_s32,
        vreinterpretq_u32_u8, vreinterpretq_u32_u16): Rewrite using casts.

2016-02-04  Martin Liska  <mliska@suse.cz>

        PR sanitizer/69276
        * asan.c (has_stmt_been_instrumented_p): Instrument gimple calls
        that are gimple_store_p.
        (maybe_instrument_call): Likewise.

2016-02-04  Bin Cheng  <bin.cheng@arm.com>

        * config/aarch64/aarch64.c (aarch64_legitimize_address): Force
        register scaling out of memory reference and comment why.

2016-02-04  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/65932
        PR target/67714
        * cse.c (cse_insn): Pass NULL to fold_rtx when initially
        folding the source of a SET.

2016-02-04  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/65932
        PR target/67714
        * config/arm/arm.c (arm_new_rtx_costs, MULT case): Properly extract
        the operands of the SIGN_EXTENDs from a SMUL[TB][TB] rtx.

2016-02-04  Jim Wilson  <jim.wilson@linaro.org>

        PR target/65932
        PR target/67714
        * config/arm/arm.h (PROMOTE_MODE): Don't set UNSIGNEDP for QImode and
        HImode.

2016-02-04  Christian Bruel  <christian.bruel@st.com>

        * config/arm/arm-c.c (arm_reset_previous_fndecl): Style fix and typo.
        * config/arm/arm.c (arm_set_current_function): Likewise.

2016-02-04  Jakub Jelinek  <jakub@redhat.com>
            Ilya Enkovich  <enkovich.gnu@gmail.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        PR target/69454
        * config/i386/i386.c (convert_scalars_to_vector): Remove
        stack alignment fixes.
        (ix86_option_override_internal): Disable TARGET_STV if stack
        might not be aligned enough.
        (ix86_minimum_alignment): Assert that TARGET_STV is false.

2016-02-04  Victoria Stepanyan  <victoria.stepanyan@amd.com>

        * config/i386/x86-tune.def: Disable default prefetching
        for -march=znver1.

2016-02-03  Michael Meissner  <meissner@linux.vnet.ibm.com>
            Vladimir Makarov  <vmakarov@redhat.com>

        PR target/69461
        * config/rs6000/rs6000.c (rs6000_legitimate_address_p): Fix thinko
        in validating fused toc addresses.

2016-02-03  Jakub Jelinek  <jakub@redhat.com>

        PR c/69627
        * diagnostic-show-locus.c (layout::get_state_at_point): Don't read
        range->m_caret fields if range->m_show_caret_p is false.

        PR target/69644
        * config/rs6000/rs6000.c (rs6000_expand_atomic_compare_and_swap):
        Force oldval into register if it does not satisfy reg_or_short_operand
        predicate.  Fix up formatting.

2016-02-03  Vladimir Makarov  <vmakarov@redhat.com>
            Alexandre Oliva  <aoliva@redhat.com>

        PR target/69461
        * lra-constraints.c (simplify_operand_subreg): Check additionally
        address validity after potential reloading.
        (process_address_1): Check insns validity.  In case of failure do
        nothing.

2016-02-03  Kirill Yukhin  <kirill.yukhin@intel.com>

        PR target/69118
        * config/i386/sse.md (define_insn "avx512f_maskcmp<mode>3"):
        Fix target.

2016-02-02  Jakub Jelinek  <jakub@redhat.com>

        * wide-int.cc (canonize_uhwi): New function.
        (wi::divmod_internal): Use it.

2016-02-02  James Norris  <jnorris@codesourcery.com>

        * gimplify.c (omp_notice_variable): Add usage check.

2016-02-02  Alexander Monakov  <amonakov@ispras.ru>

        * config/nvptx/nvptx.c (nvptx_print_operand): Treat LEU, GEU, LTU, GTU
        like LE, GE, LT, GT when emitting relational operator.

2016-02-02  Wilco Dijkstra  <wdijkstr@arm.com>

        * ira-costs.c (find_costs_and_classes): Add extra argument.
        * target.def (ira_change_pseudo_allocno_class): Add parameter.
        * targhooks.h (ira_change_pseudo_allocno_class): Likewise.
        * targhooks.c (ira_change_pseudo_allocno_class): Likewise.
        * config/aarch64/aarch64.c (aarch64_ira_change_pseudo_allocno_class)
        Add best_class parameter, and return it if not ALL_REGS.
        * config/mips/mips.c (mips_ira_change_pseudo_allocno_class):
        Add parameter.
        * doc/tm.texi (TARGET_IRA_CHANGE_PSEUDO_ALLOCNO_CLASS):
        Update target hook.

2016-02-02  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c
        (TARGET_IRA_CHANGE_PSEUDO_ALLOCNO_CLASS): New define.
        (aarch64_ira_change_pseudo_allocno_class): New function.

2016-02-02  Uros Bizjak  <ubizjak@gmail.com>

        PR target/67032
        * config/i386/i386.c (geode_cost): Increase cost of MMX and SSE moves.

2016-02-02  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

        * config/avr/avr.c (avr_option_override): Set
        PARAM_ALLOW_STORE_DATA_RACES to 1.

2016-02-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69595
        * match.pd: Add range test simplifications to true/false.

2016-02-02  Thomas Schwinge  <thomas@codesourcery.com>

        * omp-builtins.def (BUILT_IN_GOACC_HOST_DATA): Remove.
        * omp-low.c (expand_omp_target): Use BUILT_IN_GOACC_DATA_START
        instead.

2016-02-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69606
        * tree-ssa-math-opts.c (bswap_replace): Clear flow sensitive
        info on the result before moving a stmt.

2016-02-02  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR middle-end/68542
        * config/i386/i386.c (ix86_expand_branch): Add support for conditional
        branch with vector comparison.
        * config/i386/sse.md (VI48_AVX): New mode iterator.
        (define_expand "cbranch<mode>4): Add support for conditional branch
        with vector comparison.
        * tree-vect-loop.c (optimize_mask_stores): New function.
        * tree-vect-stmts.c (vectorizable_mask_load_store): Initialize
        has_mask_store field of vect_info.
        * tree-vectorizer.c (vectorize_loops): Invoke optimaze_mask_stores for
        vectorized loops having masked stores after vec_info destroy.
        * tree-vectorizer.h (loop_vec_info): Add new has_mask_store field and
        correspondent macros.
        (optimize_mask_stores): Add prototype.

2016-02-02  Alan Modra  <amodra@gmail.com>

        PR target/69548
        * config/rs6000/predicates.md (quad_int_reg_operand): Don't
        allow subregs.

2016-02-02  Alan Modra  <amodra@gmail.com>

        PR target/68662
        * config/rs6000/rs6000.c (need_toc_init): New var, set it
        whenever toc_label_name used.
        (rs6000_file_start): Don't set up toc section here,
        (rs6000_output_function_epilogue): do so here instead,
        (rs6000_xcoff_file_start): and here.
        * config/rs6000/rs6000.md (load_toc_aix_si): Set need_toc_init.
        (load_toc_aix_di): Likewise.

2016-02-01  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/69592
        * rtlanal.c (nonzero_bits_binary_arith_p): New inline function.
        (cached_nonzero_bits): Use it instead of ARITHMETIC_P.
        (num_sign_bit_copies_binary_arith_p): New inline function.
        (cached_num_sign_bit_copies): Use it instead of ARITHMETIC_P.

2016-02-01  Jeff Law  <law@redhat.com>

        PR tree-optimization/69580
        * params.def (FSM_MAXIMUM_PHI_ARGUMENTS): New param.
        * tree-ssa-threadbackward.c
        (fsm_find_control_statement_thread_paths): Do not try to walk
        through large PHI nodes.

2016-02-01  Jakub Jelinek  <jakub@redhat.com>

        * ifcvt.c (bb_ok_for_noce_convert_multiple_sets): Return false
        when count is incremented above limit, don't analyze further
        insns afterwards.

        * omp-low.c (oacc_parse_default_dims): Avoid
        -Wsign-compare warning, make sure value fits into int
        rather than just unsigned int.

2016-02-01  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/67921
        * fold-const.c (split_tree): New parameters.  Convert pointer
        type variable part to proper type before negating.
        (fold_binary_loc): Pass new arguments to split_tree.

2016-02-01  Nathan Sidwell  <nathan@codesourcery.com>

        * config/nvptx/nvptx.c (PTX_GANG_DEFAULT): New.
        (nvptx_goacc_validate_dims): Extend to handle global defaults.
        * target.def (OACC_VALIDATE_DIMS): Extend documentation.
        * doc/tm.texti: Rebuilt.
        * doc/invoke.texi (fopenacc-dim): Document.
        * lto-wrapper.c (merge_and_complain): Add OPT_fopenacc_dim_ case.
        (append_compiler_options): Likewise.
        * omp-low.c (oacc_default_dims, oacc_min_dims): New.
        (oacc_parse_default_dims): New.
        (oacc_validate_dims): Add USED arg.  Select non-unity default when
        possible.
        (oacc_loop_fixed_partitions): Return mask of used partitions.
        (oacc_loop_auto_partitions): Emit dump info.
        (oacc_loop_partition): Return mask of used partitions.
        (execute_oacc_device_lower): Parse default dimension arg.  Adjust
        loop partitioning and validation calls.

2016-02-01  Richard Biener  <rguenther@suse.de>

        PR middle-end/69556
        * match.pd: Guard (C1/X)*C2 -> (C1*C2)/X with single_use.

2016-02-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69574
        * tree-chrec.c (hide_evolution_in_other_loops_than_loop): Instead
        of asserting return chrec_dont_know.

2016-02-01  Martin Liska  <mliska@suse.cz>

        * mem-stats-traits.h: Add copyright header.
        * mem-stats.h: Likewise.

2016-02-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69579
        * tree-ssa-loop-ivcanon.c (propagate_constants_for_unrolling):
        Do not propagate through abnormal PHI results.

2016-02-01  Eric Botcazou  <ebotcazou@adacore.com>

        * postreload.c (reload_cse_simplify): Remove dead code.

2016-02-01  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/69570
        * ifcvt.c (bb_ok_for_noce_convert_multiple_sets): Return true only
        if there is more than one set, not if there is a single set.

2016-02-01  Richard Henderson  <rth@redhat.com>

        PR rtl-opt/69535
        * combine.c (make_compound_operation): When looking through a
        subreg, make sure to re-extend to the width of the outer mode.

2016-01-30  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/69546
        * wide-int.cc (wi::divmod_internal): For unsigned division
        where both operands fit into uhwi, if o1 is 1 and o0 has
        msb set, if divident_prec is larger than bits per hwi,
        clear another quotient word and return 2 instead of 1.
        Similarly for remainder with msb in HWI set, if dividend_prec
        is larger than bits per hwi.

2016-01-29  Martin Jambor  <mjambor@suse.cz>

        * hsa-gen.c (get_memory_order_name): Mask with MEMMODEL_BASE_MASK.
        Use short lowercase names.
        (get_memory_order): Mask with MEMMODEL_BASE_MASK.  Support
        MEMMODEL_CONSUME with acquire semantics and MEMMODEL_SEQ_CST with
        acq_rel one.  Protect warning agains segfaults if
        get_memory_order_name returns NULL.
        (gen_hsa_ternary_atomic_for_builtin): Support with MEMMODEL_SEQ_CST
        with release semantics.  Do not warn if get_memory_order already did.
        (gen_hsa_insns_for_call): Support with MEMMODEL_SEQ_CST with acquire
        semantics.  Fix check for relaxed or acquire semantics.  Do not warn
        if get_memory_order already did.

2016-01-29  Sebastian Pop  <s.pop@samsung.com>

        * doc/install.texi: Document that isl-0.16 is supported.

2016-01-29  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/69299
        * config/i386/constraints.md (Bm): Describe as special memory
        constraint.
        * doc/md.texi (DEFINE_SPECIAL_MEMORY_CONSTRAINT): Describe it.
        * genoutput.c (main): Process DEFINE_SPECIAL_MEMORY_CONSTRAINT.
        * genpreds.c (struct constraint_data): Add is_special_memory.
        (have_special_memory_constraints, special_memory_start): New
        static vars.
        (special_memory_end): Ditto.
        (add_constraint): Add new arg is_special_memory.  Add code to
        process its true value.  Update have_special_memory_constraints.
        (process_define_constraint): Pass the new arg.
        (process_define_register_constraint): Ditto.
        (choose_enum_order): Process special memory.
        (write_tm_preds_h): Generate enum const CT_SPECIAL_MEMORY and
        function insn_extra_special_memory_constraint.
        (main): Process DEFINE_SPECIAL_MEMORY_CONSTRAINT.
        * gensupport.c (process_rtx): Process
        DEFINE_SPECIAL_MEMORY_CONSTRAINT.
        * ira-costs.c (record_reg_classes): Process CT_SPECIAL_MEMORY.
        * ira-lives.c (single_reg_class): Use
        insn_extra_special_memory_constraint.
        * ira.c (ira_setup_alts): Process CT_SPECIAL_MEMORY.
        * lra-constraints.c (process_alt_operands): Ditto.
        (curr_insn_transform): Use insn_extra_special_memory_constraint.
        * recog.c (asm_operand_ok, preprocess_constraints): Process
        CT_SPECIAL_MEMORY.
        * reload.c (find_reloads): Ditto.
        * rtl.def (DEFINE_SPECIFAL_MEMORY_CONSTRAINT): New.
        * stmt.c (parse_input_constraint): Use
        insn_extra_special_memory_constraint.

2016-01-29  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/69530
        * lra-splill.c (lra_final_code_change): Revert r229087 by
        removing all sub-registers.

2016-01-29  Steve Ellcey  <sellcey@imgtec.com>

        PR target/65604
        * config/mips/mips.c (mips_output_division): Check flag_delayed_branch.

2016-01-29  Jakub Jelinek  <jakub@redhat.com>

        PR target/69551
        * config/i386/i386.c (ix86_expand_vector_set) <case V4SImode>: For
        SSE1, copy target into the temporary reg first before recursing
        on it.

2016-01-29  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/sse.md (sse2_cvtps2pd<mask_name>): Replace vBm
        with vm.

2016-01-29  Jonathan Wakely  <jwakely@redhat.com>

        * ginclude/stdarg.h: Test __cplusplus instead of
        __GXX_EXPERIMENTAL_CXX0X__.

2016-01-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69547
        * tree-ssa-dce.c (mark_aliased_reaching_defs_necessary_1):
        Do not mark clobbers necessary.
        (mark_all_reaching_defs_necessary_1): Likewise.

2016-01-29  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/s390-c.c (s390_resolve_overloaded_builtin): Format
        declaration name with %qs and print it in both error messages.
        Also fix indentation.

2016-01-29  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        PR other/69006
        * config/s390/s390-c.c (s390_resolve_overloaded_builtin): Remove
        trailing blank line from error message.

2016-01-29  Jonathan Wakely  <jwakely@redhat.com>

        PR c++/69462
        * ginclude/float.h: Also provide FLT_EVAL_METHOD and DECIMAL_DIG
        for C++-11.

2016-01-29  Richard Biener  <rguenther@suse.de>

        PR middle-end/69537
        * match.pd: Allow all integral types when simplifying a
        widening or sign-changing conversion.

2016-01-28  Sebastian Pop  <s.pop@samsung.com>

        * graphite-isl-ast-to-gimple.c (get_rename_from_scev): Revert assert
        back to setting codegen_error to fail codegen.

2016-01-28  Uros Bizjak  <ubizjak@gmail.com>

        PR target/69459
        * config/i386/constraints.md (C): Only accept constant zero operand.
        (BC): New constraint.
        * config/i386/sse.md (*mov<mode>_internal): Use BC constraint
        instead of C constraint.
        * doc/md.texi (Machine Constraints): Update description
        of C constraint.

2016-01-28  Steve Ellcey  <sellcey@imgtec.com>

        PR target/68400
        * config/mips/mips.c (and_operands_ok): Add MIPS16 check.

2016-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/69542
        * lra-remat.c (calculate_local_reg_remat_bb_data): Only consider
        non-debug insns.

2016-01-28  Pat Haugen  <pthaugen@us.ibm.com>

        * config/rs6000/rs6000.c (output_cbranch): Don't statically predict
        branches if using guessed profile.

2016-01-28  H.J. Lu  <hongjiu.lu@intel.com>

        * graphite-optimize-isl.c (optimize_isl): Fix dump.

2016-01-28  Richard Henderson  <rth@redhat.com>

        PR target/69305
        * config/aarch64/aarch64-modes.def (CC_Cmode): New
        * config/aarch64/aarch64-protos.h: Update.
        * config/aarch64/aarch64.c (aarch64_zero_extend_const_eq): New.
        (aarch64_select_cc_mode): Add check for use of CC_Cmode.
        (aarch64_get_condition_code_1): Handle CC_Cmode.
        * config/aarch64/aarch64.md (addti3): Use adddi3_compareC.
        (*add<mode>3_compareC_cconly_imm): New.
        (*add<mode>3_compareC_cconly): New.
        (*add<mode>3_compareC_imm): New.
        (add<mode>3_compareC): New.
        (add<mode>3_carryin, *addsi3_carryin_uxtw): Sort compare operand
        to be first.  Use aarch64_carry_operation.
        (*add<mode>3_carryin_alt1, *addsi3_carryin_alt1_uxtw): Remove.
        (*add<mode>3_carryin_alt2, *addsi3_carryin_alt2_uxtw): Remove.
        (*add<mode>3_carryin_alt3, *addsi3_carryin_alt3_uxtw): Remove.
        (subti3): Use subdi3_compare1.
        (*sub<mode>3_compare0): Rename from sub<mode>3_compare0.
        (sub<mode>3_compare1): New.
        (*sub<mode>3_carryin0, *subsi3_carryin_uxtw): New.
        (*sub<mode>3_carryin): Use aarch64_borrow_operation.
        (*subsi3_carryin_uxtw): Likewise.
        (*ngc<mode>, *ngcsi_uxtw): Likewise.
        (*sub<mode>3_carryin_alt, *subsi3_carryin_alt_uxtw): New.
        * config/aarch64/iterators.md (DWI): New.
        * config/aarch64/predicates.md (aarch64_carry_operation): New.
        (aarch64_borrow_operation): New.

2016-01-28  Abderrazek Zaafrani  <a.zaafrani@samsung.com>

        * graphite-optimize-isl.c (optimize_isl): Print a different debug
        message when isl does not return a valid schedule.

2016-01-28  Sebastian Pop  <s.pop@samsung.com>

        * graphite-isl-ast-to-gimple.c (class translate_isl_ast_to_gimple):
        Remove comments from class declarations: they are already in the code
        close by the defs.

2016-01-28  Sebastian Pop  <s.pop@samsung.com>

        * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Call
        codegen_error_p.
        (ternary_op_to_tree): Same.
        (unary_op_to_tree): Same.
        (nary_op_to_tree): Same.
        (gcc_expression_from_isl_expr_op): Same.
        (gcc_expression_from_isl_expression): Same.
        (graphite_create_new_loop): Same.
        (graphite_create_new_loop_guard): Same.
        (build_iv_mapping): Same.
        (graphite_create_new_guard): Same.
        (translate_isl_ast_to_gimple::copy_loop_phi_nodes): Same.
        (translate_isl_ast_to_gimple::translate_pending_phi_nodes): Same.

2016-01-28  Sebastian Pop  <s.pop@samsung.com>

        * graphite-isl-ast-to-gimple.c (get_rename_from_scev): Assert
        instead of setting codegen_error to fail codegen.

2016-01-28  Jason Merrill  <jason@redhat.com>

        * tree.h (BINFO_FLAG_0): Rename from BINFO_MARKED.

2016-01-28  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_if_then_else_costs):
        Remove CONST_INT_P check in CCMP cost calculation.

2016-01-28  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (generic_vector_cost):
        Set vec_permute_cost.
        (cortexa57_vector_cost): Likewise.
        (exynosm1_vector_cost): Likewise.
        (xgene1_vector_cost): Likewise.
        (aarch64_builtin_vectorization_cost): Use vec_permute_cost.
        * config/aarch64/aarch64-protos.h (cpu_vector_cost):
        Add vec_permute_cost entry.

2016-01-28  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.md (ccmp<mode>): Disassemble
        immediate as %1.
        (add<mode>3_compare0): Likewise.
        (addsi3_compare0_uxtw): Likewise.
        (add<mode>3nr_compare0): Likewise.
        (compare_neg<mode>): Likewise.
        (<optab><mode>3): Likewise.

2016-01-28  Ilya Enkovich  <enkovich.gnu@gmail.com>

        * tree-vect-stmts.c (vectorizable_comparison): Add
        NULL check for vectype.

2016-01-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69466
        * tree-vect-loop-manip.c (slpeel_duplicate_current_defs_from_edges):
        Account for PHIs we couldn't duplicate.

2016-01-28  Martin Liska  <mliska@suse.cz>

        PR pch/68758
        * ggc-common.c (gt_pch_save): Use ENABLE_VALGRIND_ANNOTATIONS macro
        instead of ENABLE_VALGRIND_CHECKING.

2016-01-27  Richard Henderson  <rth@redhat.com>

        PR rtl-opt/69447
        * lra-remat.c (subreg_regs): New.
        (dump_candidates_and_remat_bb_data): Dump it.
        (operand_to_remat): Reject if operand in subreg_regs.
        (set_bb_regs): Collect subreg_regs.
        (lra_remat): Init and free subreg_regs.  Compute
        calculate_local_reg_remat_bb_data before create_cands.

2016-01-27  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/68986
        * config/i386/i386.c (ix86_update_stack_boundary): Don't
        change stack_alignment_needed for __tls_get_addr call.

2016-01-27  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (print_operand): Rollback 's' removal.

2016-01-27  Jeff Law  <law@redhat.com>

        PR tree-optimization/68398
        PR tree-optimization/69196
        * params.def (PARAM_FSM_SCALE_PATH_STMTS): New parameter.
        (PARAM_FSM_SCALE_PATH_BLOCKS): Likewise.
        * tree-ssa-threadbackward.c (fsm_find_control_statement_thread_paths):
        Only count PHIs in the last block in the path.  The others will
        const/copy propagate away.  Add heuristic to allow more irreducible
        subloops to be created when it is likely profitable to do so.

        * tree-ssa-threadbackward.c (fsm_find_control_statement_thread_paths):
        Fix typo in comment.  Use gsi_after_labels and remove the GIMPLE_LABEL
        check from within the loop.  Use gsi_next_nondebug rather than gsi_next.

2016-01-27  Jakub Jelinek  <jakub@redhat.com>

        PR lto/69254
        * sanitizer.def: Add BEGIN_SANITIZER_BUILTINS and
        END_SANITIZER_BUILTINS markers using DEF_BUILTIN_STUB.
        * asan.c (DEF_BUILTIN_STUB): Temporarily define.
        * tree-streamer-in.c: Include asan.h.
        (streamer_get_builtin_tree): For builtins in sanitizer
        range call initialize_sanitizer_builtins and retry.

2016-01-27  Ian Lance Taylor  <iant@google.com>

        * common.opt (fkeep-gc-roots-live): New undocumented option.
        * tree-ssa-loop-ivopts.c (add_candidate_1): If
        -fkeep-gc-roots-live, skip pointers.
        (add_iv_candidate_for_biv): Handle add_candidate_1 returning
        NULL.

2016-01-27  Uros Bizjak  <ubizjak@gmail.com>

        PR target/69512
        * config/i386/i386.md (*zext<mode>_doubleword_and): New pattern.
        (*zext<mode>_doubleword): Disable for TARGET_ZERO_EXTEND_WITH_AND.

2016-01-27  Thomas Klausner  <wiz@NetBSD.org>

        PR target/68380
        * configure.ac: NetBSD provides SSP in its C library.
        * configure: Updated.

2016-01-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69166
        * tree-vect-loop.c (vect_is_simple_reduction): Always check
        reduction code for commutativity / associativity.

2016-01-27  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/69355
        * tree-sra.c (analyze_access_subtree): Correct hole detection when
        total_scalarization fails.

2016-01-27  David Edelsohn  <dje.gcc@gmail.com>

        * config/rs6000/driver-rs6000.c (detect_processor_aix): Add
        power9.

2016-01-27  Christian Bruel  <christian.bruel@st.com>

        PR target/69245
        * config/arm/arm-c.c (arm_pragma_target_parse): Add comments.
        Move arm_reset_previous_fndecl and set_target_option_current_node in
        the conditional part.  Call save_restore_target_globals.
        * config/arm/arm.c (arm_set_current_function):
        Refactor to better support #pragma target and attribute mix.
        Call save_restore_target_globals.
        * config/arm/arm-protos.h (save_restore_target_globals): New function.

2016-01-27  Martin Liska  <mliska@suse.cz>

        * hsa.c (hsa_summary_t::link_functions): Create IPA_REF_ADDR
        reference for an HSA kernel and its host function.

2016-01-27  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/69399
        * wide-int.h (wi::lrshift): For larger precisions, only
        use fast path if shift is known to be < HOST_BITS_PER_WIDE_INT.

2016-01-27  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/predicates.md (proper_comparison_operator): Reject
        constant-constant comparison.

2016-01-26  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/69110
        * tree-data-ref.c (initialize_data_dependence_relation): Handle
        DR_NUM_DIMENSIONS == 0.

2016-01-26  Abderrazek Zaafrani  <a.zaafrani@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        * graphite-isl-ast-to-gimple.c (ternary_op_to_tree): Handle
        isl_ast_op_cond and isl_ast_op_select.
        (gcc_expression_from_isl_expr_op): Same.

2016-01-26  Jason Merrill  <jason@redhat.com>

        PR c++/68782
        * tree.c (recompute_constructor_flags): Split out from
        build_constructor.
        (verify_constructor_flags): New.
        * tree.h: Declare them.

2016-01-26  Iain Buclaw  <ibuclaw@gdcproject.org>

        PR rtl-optimization/69217
        * var-tracking.c (tracked_record_parameter_p): Don't segfault if there
        are no TYPE_FIELDS set for the record type.

2016-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR target/68662
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Initialize
        toc_label_name unconditionally.
        (rs6000_emit_load_toc_table): Call ggc_strdup on toc_label_name for
        SYMBOL_REF string.  Use toc_label_name instead of constructing
        LCTOC1.
        (rs6000_elf_declare_function_name): Use toc_label_name instead of
        constructing LCTOC1.

2016-01-26  Martin Sebor  <msebor@redhat.com>

        PR other/69477
        * doc/extend.texi (Common Type Attributes): Move text that talks about
        attribute packed from attribute aligned to the section discussing
        the former attribute for clarity.

2016-01-26  Richard Henderson  <rth@redhat.com>

        PR middle-end/60908
        * trans-mem.c (tm_region_init): Mark entry block as visited.

2016-01-26  David Malcolm  <dmalcolm@redhat.com>

        PR other/69006
        * diagnostic-show-locus.c (layout::print_source_line): Replace
        call to pp_newline with call to layout::print_newline.
        (layout::print_annotation_line): Likewise.
        (layout::move_to_column): Likewise.
        (layout::print_any_fixits): After printing any fixits, print a
        trailing newline, if necessary.
        (layout::print_newline): New method, resetting any colorization
        before a newline.
        (diagnostic_show_locus): Move the pp_newline to before the
        early bailout.  Remove dummy block enclosing the layout instance.
        * diagnostic.c (default_diagnostic_finalizer): Replace invocation
        of pp_newline_and_flush with pp_flush.
        (diagnostic_append_note): Delete use of pp_newline.
        (diagnostic_append_note_at_rich_loc): Delete.
        * diagnostic.h (diagnostic_append_note_at_rich_loc): Delete.
        * pretty-print.h (output_buffer_append_r): Reset buff->line_length
        when newline characters are added to the buffer.

2016-01-26  Michael Matz  <matz@suse.de>

        * configure.ac (ac_cv_std_swap_in_utility): New test.
        * system.h (<algorithm>): Check HAVE_SWAP_IN_UTILITY as well.
        * configure: Regenerate.
        * config.in: Regenerate.

2016-01-26  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (cstoresi4): Force operand into register.
        (arcset<code>): Fix predicate.
        (arcsetltu): Likewise.
        (arcsetgeu): Likewise.
        (arcsethi): Likewise.
        (arcsetls): Likewise.

2016-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/69483
        * gimple-fold.c (canonicalize_constructor_val): Return NULL
        if base has error_mark_node type.

2016-01-26  Christophe Lyon  <christophe.lyon@linaro.org>

        PR target/68620
        * config/arm/arm.c (neon_valid_immediate): Handle FP16 vectors.
        * config/arm/arm_neon.h (__ARM_NUM_LANES, __arm_lane, arm_lanq):
        New helper macros.
        (vget_lane_f16): Handle big-endian.
        (vgetq_lane_f16): Likewise.
        (vset_lane_f16): Likewise.
        (vsetq_lane_f16): Likewise.
        * config/arm/iterators.md (VQXMOV): Add V8HF.
        (VDQ): Add V4HF and V8HF.
        (V_reg): Handle V4HF and V8HF.
        (Is_float_mode): Likewise.
        * config/arm/neon.md (movv4hf, movv8hf, neon_vdup_nv4hf,
        neon_vdup_nv8hf): New patterns.
        (vec_set<mode>_internal, vec_extract<mode>, neon_vld1_dup<mode>):
        Use VD_LANE iterator.
        (neon_vld1_dup<mode>): Use VQ2 iterator.

2016-01-26  Nathan Sidwell  <nathan@acm.org>

        * omp-low.h (oacc_fn_attrib_kernels_p): Declare.
        (set_oacc_fn_attrib): Add IS_KERNEL arg.
        * omp-low.c (set_oacc_fn_attrib): Add IS_KERNEL arg.
        (oacc_fn_attrib_kernels_p, oacc_fn_attrib_level): New.
        (expand_omp_target): Pass is_kernel to set_oacc_fn_attrib.
        (oacc_validate_dims): Add LEVEL arg, don't return level.
        (new_oacc_loop_routine): Use oacc_fn_attrib_level, not
        oacc_validate_dims.
        (execute_oacc_device_lower): Adjust, add more dump output.
        * tree-ssa-loop.c (gate_oacc_kernels): Use
        oacc_fn_attrib_kernels_p.
        * tree-parloops.c (create_parallel_loop): Adjust
        set_oacc_fn_attrib call.

2016-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR lto/69254
        * lto-wrapper.c (merge_and_complain): Handle -fcilkplus.
        (append_compiler_options): Handle -fcilkplus.
        (append_linker_options): Ignore -fno-{openmp,openacc,cilkplus}.

2016-01-26  Nick Clifton  <nickc@redhat.com>

        PR target/66655
        * config/i386/winnt.c (i386_pe_binds_local_p): If a function has
        been marked as DECL_ONE_ONLY but we do not the means to make it
        so, then do not allow it to bind locally.

2016-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR lto/69254
        * opts.h (parse_sanitizer_options): New prototype.
        * opts.c (sanitizer_opts): New array.
        (parse_sanitizer_options): New function.
        (common_handle_option): Use parse_sanitizer_options.

2016-01-26  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/68986
        * config/i386/i386.c (ix86_compute_frame_layout): Move stack
        alignment adjustment to ...
        (ix86_update_stack_boundary): Here.  Don't over-align stack for
        __tls_get_addr.
        (ix86_finalize_stack_realign_flags): Use stack_alignment_needed
        if __tls_get_addr is called.

2016-01-26  Christian Bruel  <christian.bruel@st.com>

        * doc/sourcebuild.texi (arm_crypto_pragma_ok): Remove.

2016-01-26  Eric Botcazou  <ebotcazou@adacore.com>

        * config/ia64/ia64.c (ia64_expand_vecint_compare): Use gen_int_mode.

2016-01-26  Richard Biener  <rguenther@suse.de>

        PR middle-end/69467
        * match.pd: Guard X * CST CMP 0 pattern with single_use.

2016-01-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69452
        * tree-ssa-loop-im.c (move_computations_dom_walker): Remove.
        (move_computations_dom_walker::before_dom_children): Rename
        to ...
        (move_computations_worker): This.
        (move_computations): Perform an RPO rather than a DOM walk.

2016-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR target/69442
        * combine.c (combine_instructions): For REG_EQUAL note with
        SET_DEST being ZERO_EXTRACT, also temporarily set SET_DEST
        to the underlying register.
        * doc/rtl.texi (REG_EQUAL): Document the behavior of
        REG_EQUAL/REG_EQUIV notes if SET_DEST is ZERO_EXTRACT.

2016-01-26  Roger Ferrer Ibáñez  <rofirrim@gmail.com>

        PR target/67896
        * config/aarch64/aarch64-builtins.c
        (aarch64_init_simd_builtin_types): Do not set structural
        equality to __Poly{8,16,64,128}_t types.

2016-01-26  Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/69400
        * wide-int.cc (wi_pack): Take the precision as argument and
        perform canonicalization here rather than in the callers.
        Use the main loop to handle all full-width HWIs.  Add a
        zero HWI if in_len isn't a full result.
        (wi::divmod_internal): Update accordingly.
        (wi::mul_internal): Likewise.  Simplify.

2016-01-25  Aditya Kumar  <aditya.k7@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        * graphite-poly.c (apply_poly_transforms): Simplify.
        (print_isl_set): Use more readable format: ISL_YAML_STYLE_BLOCK.
        (print_isl_map): Same.
        (print_isl_union_map): Same.
        (print_isl_schedule): New.
        (debug_isl_schedule): New.
        * graphite-dependences.c (scop_get_reads): Do not call
        isl_union_map_add_map that is undocumented isl functionality.
        (scop_get_must_writes): Same.
        (scop_get_may_writes): Same.
        (scop_get_original_schedule): Remove.
        (scop_get_dependences): Do not call isl_union_map_compute_flow that
        is deprecated in isl 0.15.  Instead, use isl_union_access_* interface.
        (compute_deps): Remove.
        * graphite-isl-ast-to-gimple.c (print_schedule_ast): New.
        (debug_schedule_ast): New.
        (translate_isl_ast_to_gimple::scop_to_isl_ast): Call
        set_separate_option.
        (graphite_regenerate_ast_isl): Add dump.
        (translate_isl_ast_to_gimple::scop_to_isl_ast): Generate code
        from scop->transformed_schedule.
        (graphite_regenerate_ast_isl): Add more dump.
        * graphite-optimize-isl.c (optimize_isl): Set
        scop->transformed_schedule.  Check whether schedules are equal.
        (apply_poly_transforms): Move here.
        * graphite-poly.c (apply_poly_transforms): ... from here.
        (free_poly_bb): Static.
        (free_scop): Static.
        (pbb_number_of_iterations_at_time): Remove.
        (print_isl_ast): New.
        (debug_isl_ast): New.
        (debug_scop_pbb): New.
        * graphite-scop-detection.c (print_edge): Move.
        (print_sese): Move.
        * graphite-sese-to-poly.c (build_pbb_scattering_polyhedrons): Remove.
        (build_scop_scattering): Remove.
        (create_pw_aff_from_tree): Assert instead of bailing out.
        (add_condition_to_pbb): Remove unused code, do not fail.
        (add_conditions_to_domain): Same.
        (add_conditions_to_constraints): Remove.
        (build_scop_context): New.
        (add_iter_domain_dimension): New.
        (build_iteration_domains): Initialize pbb->iterators.
        Call add_conditions_to_domain.
        (nested_in): New.
        (loop_at): New.
        (index_outermost_in_loop): New.
        (index_pbb_in_loop): New.
        (outermost_pbb_in): New.
        (add_in_sequence): New.
        (add_outer_projection): New.
        (outer_projection_mupa): New.
        (add_loop_schedule): New.
        (build_schedule_pbb): New.
        (build_schedule_loop): New.
        (embed_in_surrounding_loops): New.
        (build_schedule_loop_nest): New.
        (build_original_schedule): New.
        (build_poly_scop): Call build_original_schedule.
        * graphite.h: Declare print_isl_schedule and debug_isl_schedule.
        (free_poly_dr): Remove.
        (struct poly_bb): Add iterators.  Remove schedule, transformed, saved.
        (free_poly_bb): Remove.
        (debug_loop_vec): Remove.
        (print_isl_ast): Declare.
        (debug_isl_ast): Declare.
        (scop_do_interchange): Remove.
        (scop_do_strip_mine): Remove.
        (scop_do_block): Remove.
        (flatten_all_loops): Remove.
        (optimize_isl): Remove.
        (pbb_number_of_iterations_at_time): Remove.
        (debug_scop_pbb): Declare.
        (print_schedule_ast): Declare.
        (debug_schedule_ast): Declare.
        (struct scop): Remove schedule.  Add original_schedule,
        transformed_schedule.
        (free_gimple_poly_bb): Remove.
        (print_generated_program): Remove.
        (debug_generated_program): Remove.
        (unify_scattering_dimensions): Remove.
        * sese.c (print_edge): ... here.
        (print_sese): ... here.
        (debug_edge): ... here.
        (debug_sese): ... here.
        * sese.h (print_edge): Declare.
        (print_sese): Declare.
        (dump_edge): Declare.
        (dump_sese): Declare.

2016-01-25  Aditya Kumar  <aditya.k7@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        * Makefile.in: Set ISLVER in site.exp.

2016-01-25  Jakub Jelinek  <jakub@redhat.com>

        * omp-low.c (lower_omp_target) <case USE_DEVICE_PTR>: Set
        DECL_VALUE_EXPR of new_var even for the non-array case.  Look
        through DECL_VALUE_EXPR for expansion.

2016-01-25  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * config/mips/mips.c (mips_compute_frame_info): Skip re-computing
        the frame info after reload completed.

2016-01-25  Jeff Law  <law@redhat.com>

        PR tree-optimization/69196
        PR tree-optimization/68398
        * tree-ssa-threadupdate.h (enum bb_dom_status): Moved here from
        tree-ssa-threadupdate.c.
        (determine_bb_domination_status): Prototype
        * tree-ssa-threadupdate.c (enum bb_dom_status): Remove
        (determine_bb_domination_status): No longer static.
        (valid_jump_thread_path): Remove code to detect characteristics
        of the jump thread path not associated with correctness.
        * tree-ssa-threadbackward.c (fsm_find_control_statment_thread_paths):
        Correct test for thread path length.  Count PHIs for real operands as
        statements that need to be copied.  Do not count ASSERT_EXPRs.
        Look at all the blocks in the thread path.  Compute and selectively
        filter thread paths based on threading through the latch, threading
        a multiway branch or crossing a multiway branch.

2016-01-25  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_keep_leaf_when_profiled):  Add
        decl with __attribute__ ((unused)) annotation.

2016-01-25  Ilya Enkovich  <enkovich.gnu@gmail.com>

        PR target/69421
        * tree-vect-stmts.c (vectorizable_condition): Check vectype
        of operands is compatible with a statement vectype.

2016-01-25  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/extend.texi (scalar_storage_order type attribute): Fix typo and
        improve wording for mixed storage order support.

2016-01-25  Bilyan Borisov  <bilyan.borisov@arm.com>

        * config/aarch64/arm_neon.h (vcvt_s64_f64): New intrinsic.
        (vcvt_u64_f64): Likewise.
        (vcvta_s64_f64): Likewise.
        (vcvta_u64_f64): Likewise.
        (vcvtm_s64_f64): Likewise.
        (vcvtm_u64_f64): Likewise.
        (vcvtn_s64_f64): Likewise.
        (vcvtn_u64_f64): Likewise.
        (vcvtp_s64_f64): Likewise.
        (vcvtp_u64_f64): Likewise.

2016-01-25  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (TARGET_DWARF_REGISTER_SPAN): Define.
        (arc_init): Check validity mll64 option.
        (arc_save_restore): Use double load/store instruction.
        (arc_expand_movmem): Likewise.
        (arc_split_move): Don't split if we have double load/store
        instructions. Returns a boolean.
        (arc_process_double_reg_moves): Change function to return boolean
        instead of a sequence of instructions.
        (arc_dwarf_register_span): New function.
        * config/arc/arc-protos.h (arc_split_move): Change prototype.
        * config/arc/arc.h (TARGET_CPU_CPP_BUILTINS): Define __ARC_LL64__.
        * config/arc/arc.md (*movdi_insn): Emit ldd/std instructions.
        (*movdf_insn): Likewise.
        * config/arc/arc.opt (mll64): New option.
        * config/arc/predicates.md (even_register_operand): New predicate.
        * doc/invoke.texi (ARC Options): Add mll64 documentation.

2016-01-25  Richard Biener  <rguenther@suse.de>

        PR lto/69393
        * dwarf2out.c (is_naming_typedef_decl): Not when DECL_NAMELESS.
        * tree-streamer-out.c (pack_ts_base_value_fields): Stream
        DECL_NAMELESS.
        * tree-streamer-in.c (unpack_ts_base_value_fields): Likewise.

2016-01-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69376
        * tree-ssa-sccvn.h (struct vn_ssa_aux): Add range_info_anti_range_p
        flag.
        (VN_INFO_ANTI_RANGE_P): New inline.
        (VN_INFO_RANGE_TYPE): Likewise.
        * tree-ssa-sccvn.c (set_ssa_val_to): Also record and copy
        SSA_NAME_ANTI_RANGE_P.
        (free_scc_vn): Restore SSA_NAME_ANTI_RANGE_P.
        * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
        Properly query VN_INFO_RANGE_TYPE.

2016-01-25  Nick Clifton  <nickc@redhat.com>

        PR target/66655
        * config/i386/cygming.h (MAKE_DECL_ONE_ONLY): Remove definition.

2016-01-23  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/69426
        * tree-parloops.c (eliminate_local_variables_stmt): Handle vdef of
        removed clobber.

2016-01-23  Jakub Jelinek  <jakub@redhat.com>

        * tree-ssanames.c (release_free_names_and_compact_live_names): Replace
        "the the" with "the" in the comments.
        * ipa-devirt.c (build_type_inheritance_graph,
        update_type_inheritance_graph): Likewise.
        * tree.c (build_function_type_list_1): Likewise.
        * cfgloopmanip.c (scale_loop_profile): Likewise.
        * tree-ssa-loop-ivopts.c (get_shiftadd_cost): Likewise.
        * gimple-ssa-split-paths.c
        (find_block_to_duplicate_for_splitting_paths): Likewise.
        * tree-sra.c (init_subtree_with_zero, clobber_subtree): Likewise.
        * expr.c (convert_move): Likewise.
        * var-tracking.c (vt_stack_adjustments): Likewise.
        * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Likewise.
        * tree-vrp.c (test_for_singularity): Likewise.

        * tree-vect-stmts.c (vectorizable_condition): Build a VEC_COND_EXPR
        directly instead of building a temporary tree.

        PR bootstrap/69434
        * genrecog.c: Define INCLUDE_ALGORITHM before including system.h,
        remove <algorithm> include.

2016-01-22  Jakub Jelinek  <jakub@redhat.com>

        PR target/69432
        * config/i386/i386.c: Include dojump.h.
        (expand_small_movmem_or_setmem,
        expand_set_or_movmem_prologue_epilogue_by_misaligned_moves): Spelling
        fixes.
        (ix86_expand_set_or_movmem): Call do_pending_stack_adjust () early
        if dynamic_check != -1.

2016-01-21  Jeff Law  <law@redhat.com>

        PR middle-end/69347
        * tree-ssa-dom.c (back_propagate_equivalences): Factored out of
        record_temporary_equivalences.  Rewritten to avoid unnecessary calls
        into dominated_by_p.
        (cprop_into_successor_phis): Avoid unnecessary tests.

2016-01-22  Richard Henderson  <rth@redhat.com>

        PR target/69416
        * config/aarch64/aarch64.md (UNSPEC_NZCV): New.
        (ccmp<mode>, fccmp<mode>, fccmpe<mode>): Use it.

2016-01-22  Michael Matz  <matz@suse.de>

        * system.h (string, algorithm): Include only conditionally.
        (new): Include always under C++.
        * bb-reorder.c (toplevel): Define INCLUDE_ALGORITHM.
        * final.c (toplevel): Ditto.
        * ipa-chkp.c (toplevel): Define INCLUDE_STRING.
        * genconditions.c (write_header): Make gencondmd.c define
        INCLUDE_STRING.
        * mem-stats.h (mem_usage::print_dash_line): Don't use std::string.

        * config/aarch64/aarch64.c (toplevel): Define INCLUDE_STRING.
        * common/config/aarch64/aarch64-common.c (toplevel): Ditto.

2016-01-22  Christian Bruel  <christian.bruel@st.com>

        PR target/68674
        * expr.c (expand_expr_real_1): Reset DECL_MODE if VECTOR_TYPE_P changed.

2016-01-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/69403
        * config/arm/thumb2.md (*thumb2_ior_scc_strict_it): Convert to
        define_insn_and_split.  Ensure operands[1] and operands[0] do not
        get assigned the same register.

2016-01-22  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * ipa-prop.c (ipa_set_jf_constant): Remove redundant unshare_expr.

2016-01-22  Christian Bruel  <christian.bruel@st.com>

        * config/arm/arm-c.c (arm_pragma_target_parse):
        Remove warn_builtin_macro_redefined overwrite.

2016-01-22  Eric Botcazou  <ebotcazou@adacore.com>

        * ipa-inline.c (can_inline_edge_p): Back out overzealous check on
        flag_non_call_exceptions compatibility.

2016-01-22  Jakub Jelinek  <jakub@redhat.com>

        PR debug/66668
        * dwarf2out.c (add_child_die_after): New function.
        (dwarf_qual_info_t): New type.
        (dwarf_qual_info): New variable.
        (qualified_die_p): New function.
        (modified_type_die): For -fdebug-types-section, ensure
        canonical order of qualifiers.  Put qualified DIEs adjacent
        to the corresponding non-qualified type DIE and search there
        for existing qualified DIEs.

2016-01-22  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/extend.texi (scalar_storage_order type attribute): Document
        restriction on type punning and aliasing, and remove future tense.

2016-01-21  Roman Zhuykov  <zhroma@ispras.ru>

        PR target/69252
        * modulo-sched.c (optimize_sc): Allow branch-scheduling to add a new
        first stage.

2016-01-21  Jeff Law  <law@redhat.com>

        PR middle-end/69347
        * tree-ssa-dom.c (dom_opt_dom_walker::thread_across_edge): Avoid
        useless call to record_temporary_equivalences.
        * tree-ssa-threadbackward.c (find_jump_threads_backwards): Just
        allocate 10 slots in the bb_path vector and let it grow as needed.
        (fsm_find_control_statement_thread_paths): Similarly for the next_path
        vector.

2016-01-21  David Edelsohn  <dje.gcc@gmail.com>

        * configure.ac (gcc_cv_as_powerpc_mfcrf, gcc_cv_as_machine_directive):
        Detangle.
        * configure: Regenerate.

2016-01-21  Pat Haugen  <pthaugen@us.ibm.com>

        * config/rs6000/aix71.h (ASM_CPU_SPEC): Add entry for Power9.
        * config/rs6000/driver-rs6000.c (struct asm_names): Likewise.

2016-01-21  Bernd Schmidt  <bschmidt@redhat.com>

        PR middle-end/66178
        * expr.c (expand_expr_real_2) [PLUS_EXPR, MINUS_EXPR]: Don't
        drop EXPAND_INITIALIZER.
        * rtl.h (contains_symbolic_reference_p): Declare.
        * rtlanal.c (contains_symbolic_reference_p): New function.
        * simplify-rtx.c (simplify_binary_operation_1): Don't turn
        a subtraction into a NOT if symbolic constants are involved.

2016-01-21  Anton Blanchard  <anton@samba.org>
            Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/63354
        * config/rs6000/linux64.h (TARGET_KEEP_LEAF_WHEN_PROFILED): New
        #define.
        * config/rs6000/rs6000.c (rs6000_keep_leaf_when_profiled): New
        function.

2016-01-21  Ajit Agarwal  <ajitkum@xilinx.com>

        * config/microblaze/microblaze.c
        (get_branch_target): New.
        (insert_wic_for_ilb_runout): New.
        (insert_wic): New.
        (microblaze_machine_dependent_reorg): New.
        (TARGET_MACHINE_DEPENDENT_REORG): Define macro.
        * config/microblaze/microblaze.md
        (UNSPEC_IPREFETCH): Define.
        (iprefetch): New pattern
        * config/microblaze/microblaze.opt
        (mxl-prefetch): New flag.

2016-01-21  Ajit Agarwal  <ajitkum@xilinx.com>

        * config/microblaze/microblaze.h
        (FIXED_REGISTERS): Update in macro.
        (CALL_USED_REGISTERS): Update in macro.

2016-01-21  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR rtl-optimization/68920
        * ifcvt.c (cond_move_process_if_block): Limit number of conditional
        moves.

2016-01-21  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/68990
        * lra-coalesce.c (lra_coalesce): Invalidate value for the result
        pseudo instead of inheritance ones.

2016-01-21  Bernd Edlinger  <bernd.edlinger@hotmail.de>
            Nick Clifton  <nickc@redhat.com>

        PR target/69129
        PR target/69012
        * config/mips/mips.c (mips_compute_frame_info): Initialise
        args_size and hard_frame_pointer_offset fields of the frame
        structure before calling mips_global_pointer.

2016-01-21  David Edelsohn  <dje.gcc@gmail.com>

        * configure.ac (gcc_cv_as_dwloc): Test support for debug frame section
        label reference.
        * configure: Regenerate.

2016-01-21  Richard Biener  <rguenther@suse.de>

        * graphite-optimize-isl.c (get_schedule_map): Fix typo.

2016-01-21  Marcin Kościelnicki  <koriakin@0x04.net>

        * config/s390/s390.c (s390_asm_declare_function_size): Add code
        to actually emit the .size directive.

2016-01-21   Stefan Sørensen  <stefan.sorensen@spectralink.com>
             Jakub Jelinek  <jakub@redhat.com>

        PR target/69187
        PR target/65624
        * config/arm/arm-builtins.c (arm_expand_neon_builtin): Increase
        args array size by one to avoid buffer overflow.

2016-01-21  Marcin Kościelnicki  <koriakin@0x04.net>

        * config/s390/s390.md (pool_section_start): Use switch_to_section
        to select proper read-only data section instead of hardcoding
        .rodata.
        (pool_section_end): Use switch_to_section to match the above.

2016-01-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69378
        * tree-ssa-sccvn.c (dominated_by_p_w_unex): New function.
        (set_ssa_val_to): Use it for dominance checks taking into
        account not executable edges.

2016-01-21  Jakub Jelinek  <jakub@redhat.com>

        PR c++/69355
        * tree-dfa.c (get_ref_base_and_extent): Use GET_MODE_BITSIZE (mode)
        for bitsize instead of GET_MODE_PRECISION (mode).

2016-01-20  Martin Sebor  <msebor@redhat.com>

        PR c/52291
        * extend.texi (__sync Builtins): Clarify the semantics of
        __sync_fetch_and_OP built-ins on pointers.
        (__atomic Builtins): Same.

2016-01-21  Aditya Kumar  <aditya.k7@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        * graphite-isl-ast-to-gimple.c (enum phi_node_kind): New.
        (class translate_isl_ast_to_gimple): Use phi_node_kind instead of bool.
        (is_valid_rename): Same.
        (translate_isl_ast_to_gimple::get_rename): Same.
        (translate_isl_ast_to_gimple::rename_all_uses): Same.
        (translate_isl_ast_to_gimple::rename_uses): Same.
        (get_new_name): Check for close_phi nodes.
        (copy_loop_phi_args): Use phi_node_kind.
        (translate_isl_ast_to_gimple::copy_loop_close_phi_args): Same.
        (translate_isl_ast_to_gimple::copy_cond_phi_args): Same.

2016-01-21  Aditya Kumar  <aditya.k7@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        Revert commit r229783.
        * graphite-isl-ast-to-gimple.c (gcc_expression_from_isl_ast_expr_id):
        Remove use of parameter_rename_map.
        (copy_def): Remove.
        (copy_internal_parameters): Remove.
        (graphite_regenerate_ast_isl): Remove call to copy_internal_parameters.
        * sese.c (new_sese_info): Do not initialize parameter_rename_map.
        (free_sese_info): Do not free parameter_rename_map.
        (set_rename): Do not use parameter_rename_map.
        (rename_uses): Update call to set_rename.
        (graphite_copy_stmts_from_block): Do not use parameter_rename_map.
        * sese.h (parameter_rename_map_t): Remove.
        (struct sese_info_t): Remove field parameter_rename_map.

2016-01-21  Aditya Kumar  <aditya.k7@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        * graphite-isl-ast-to-gimple.c: Fix comment.
        * graphite-scop-detection.c (defined_in_loop_p): New.
        (canonicalize_loop_closed_ssa): Do not add close phi nodes for SSA
        names defined in loop.

2016-01-21  Aditya Kumar  <aditya.k7@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        * graphite-scop-detection.c (scop_detection::harmful_loop_in_region):
        Discard unstructured if-then-else regions.

2016-01-21  Aditya Kumar  <aditya.k7@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        * graphite-sese-to-poly.c (set_scop_parameter_dim): Remove.
        (cleanup_loop_iter_dom): Remove.
        (build_loop_iteration_domains): Remove.
        (build_scop_context): Remove.
        (build_scop_iteration_domain): Remove.
        (add_loop_constraints): New.
        (build_iteration_domains): New.
        (build_poly_scop): Call build_iteration_domains.

2016-01-21  Aditya Kumar  <aditya.k7@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        * graphite-scop-detection.c
        (scop_detection::harmful_loop_in_region): Free dom and loops.
        (scop_detection::loop_body_is_valid_scop): Free bbs.

2016-01-21  Aditya Kumar  <aditya.k7@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        * graphite-scop-detection.c (record_loop_in_sese): New.
        (gather_bbs::before_dom_children): Call record_loop_in_sese.
        (build_scops): Remove call to build_sese_loop_nests.
        * sese.c (sese_record_loop): Remove.
        (build_sese_loop_nests): Remove.
        (new_sese_info): Remove region->loops.
        (free_sese_info): Same.
        * sese.h (sese_contains_loop): Same.
        (build_sese_loop_nests): Remove.
        (sese_contains_loop): Remove.

2016-01-21  Aditya Kumar  <aditya.k7@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        * graphite-scop-detection.c (loop_is_valid_scop): Renamed
        loop_is_valid_in_scop.
        (scop_detection::harmful_stmt_in_region): Renamed
        harmful_loop_in_region.
        Call loop_is_valid_in_scop.

2016-01-21  Aditya Kumar  <aditya.k7@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        * graphite-isl-ast-to-gimple.c (translate_isl_ast): Also handle
        isl_ast_node_mark.

2016-01-21  Aditya Kumar  <aditya.k7@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        * graphite-poly.c (new_poly_bb): Remove use of PBB_IS_REDUCTION.
        * graphite.h (struct poly_bb): Remove field is_reduction.
        (PBB_IS_REDUCTION): Remove.

2016-01-21  Aditya Kumar  <aditya.k7@samsung.com>
            Sebastian Pop  <s.pop@samsung.com>

        * graphite-dependences.c (constrain_domain): Add call to isl_*_coalesce.
        (add_pdr_constraints): Same.
        (scop_get_reads): Same.
        (scop_get_must_writes): Same.
        (scop_get_may_writes): Same.
        (scop_get_original_schedule): Same.
        (extend_schedule): Same.
        (apply_schedule_on_deps): Same.
        (carries_deps): Same.
        (compute_deps): Same.
        (scop_get_dependences): Same.
        * graphite-isl-ast-to-gimple.c
        (translate_isl_ast_to_gimple::generate_isl_schedule): Same.
        * graphite-optimize-isl.c (get_schedule_for_band): Same.
        (get_schedule_for_band_list): Same.
        (get_schedule_map): Same.
        (apply_schedule_map_to_scop): Same.
        * graphite-sese-to-poly.c (build_pbb_scattering_polyhedrons): Same.
        (build_loop_iteration_domains): Same.
        (add_condition_to_pbb): Same.
        (add_param_constraints): Same.
        (pdr_add_memory_accesses): Same.
        (pdr_add_data_dimensions): Same.

2016-01-20  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (Instrumentation Options): Clarify -mmpx linking
        requirements.

2016-01-20  Sandra Loosemore  <sandra@codesourcery.com>

        * common.opt (feliminate-dwarf2-dups): Replace references to
        "DWARF 2" with just "DWARF".
        * config/ia64/ia64.opt (mdwarf2-asm): Likewise.
        * doc/extend.texi: Likewise.
        * doc/cpp.texi: Likewise.
        * doc/invoke.texi: Likewise.
        (Option Summary): Add -gdwarf to list of Debugging Options.
        (Debugging Options): Document -gdwarf.
        * doc/contrib.texi: Spell "DWARF" like that.

2016-01-21  Jakub Jelinek  <jakub@redhat.com>

        * omp-low.c (expand_omp_target): Avoid -Wmaybe-uninitialized
        warning.  Fix up formatting.

        PR middle-end/67653
        * gimplify.c (gimplify_asm_expr): Warn if it is too late to
        attempt to mark memory input operand addressable and
        call prepare_gimple_addressable in that case.  Don't adjust
        input_location for diagnostics, use error_at instead.

2016-01-20  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/ppc-auxv.h: New file.
        * config/rs6000/rs6000-builtin.def (cpu_init): Add new builtin.
        (cpu_is): Likewise.
        (cpu_supports): Likewise.
        * config/rs6000/rs6000.c: include "ppc-auxv.h".
        (cpu_is_info): New variable.
        (cpu_supports_info): Likewise.
        (tcb_verification_symbol): Likewise.
        (cpu_builtin_p): Likewise.
        (cpu_expand_builtin): New function.
        (rs6000_expand_ternop_builtin): Add support for CPU builtin functions.
        (rs6000_init_builtins): Likewise.
        (rs6000_elf_file_end): Emit HWCAP in TCB verification symbol.
        * config/rs6000/rs6000.h (TLS_REGNUM): New define.
        * configure.ac (gcc_cv_libc_provides_hwcap_in_tcb): New test.
        * configure: Regenerate.
        * config.in: Likewise.
        * doc/extend.texi (PowerPC Built-in Functions): Document
        __builtin_cpu_init, __builtin_cpu_is and __builtin_cpu_supports.

2016-01-20  David Edelsohn  <dje.gcc@gmail.com>

        PR target/68609
        * config/rs6000/rs6000.c (rs6000_emit_swsqrt): Add vector sqrt
        domain check.
        * config/rs6000/vector.md (sqrt<mode>2): Call rs6000_emit_swsqrt
        for V4SFmode.

2016-01-20  Richard Henderson  <rth@redhat.com>

        PR bootstrap/69343
        PR bootstrap/69339
        PR tree-opt/68964
        Revert:
        * tree.c (tm_define_builtin): New.
        (find_tm_vector_type): New.
        (build_tm_vector_builtins): New.
        (build_common_builtin_nodes): Call it.

2016-01-20  Christophe Lyon  <christophe.lyon@linaro.org>

        * doc/sourcebuild.texi (arm_crypto_pragma_ok): Document new entry.
        (arm_fp_ok): Likewise.
        (arm_fp): Likewise.
        (arm_crypto): Likewise.

2016-01-20  Ilya Enkovich  <enkovich.gnu@gmail.com>
            Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69328
        * tree-vect-stmts.c (vect_is_simple_cond): Check compared
        vectors have same number of elements.
        (vectorizable_condition): Fix masked version recognition.

2016-01-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69345
        * tree-ssa-sccvn.h (VN_INFO_RANGE_INFO): New inline function.
        (VN_INFO_PTR_INFO): Likewise.
        * tree-ssa-sccvn.c (set_ssa_val_to): Avoid clearing points-to
        info when it is equal between non-dominating SSA names.
        * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
        Make sure to look at original SSA infos.

2016-01-20  Jeff Law  <law@redhat.com>

        PR target/25114
        * config/m68k/predicates.md (pow2_m1_operand): New predicate
        extracted from ...
        (reg_or_pow2_m1_operand): Call pow2_m1_operand.
        (pc_or_label_operand): New predicate.
        * config/m68k/m68k.md: Add new peephole2 patterns for GTU/LEU
        tests for small integers that are 2^n - 1.

2016-01-20  Jonathan Wakely  <jwakely@redhat.com>

        * doc/invoke.texi (Options Summary): Add '.' after @xref.

2016-01-19  Jeff Law  <law@redhat.com>

        PR middle-end/69347
        * tree-ssa-threadbackwards.c
        (fsm_find_control_statement_thread_paths): Do not try to lookup
        FSM paths for SSA_NAMEs appearing in abnormal PHIs.

2016-01-20  Kugan Vivekanandarajah  <kuganv@linaro.org>

        * doc/lto.texi: Remove text that says only Gold has linker plugin
        support.

2016-01-19  Eric Botcazou  <ebotcazou@adacore.com>

        * dwarf2out.c (need_endianity_attribute_p): New inline predicate.
        (base_type_die): Add REVERSE parameter and attach DW_AT_endianity to
        the DIE accordingly.
        (modified_type_die): Add REVERSE parameter and pass it recursively,
        as well as to base_type_die.  Adjust presence check accordingly.
        (base_type_for_mode): Adjust call to modified_type_die.
        (add_type_attribute): Add REVERSE parameter and pass it to
        modified_type_die.
        (generic_parameter_die): Adjust call to add_type_attribute.
        (add_scalar_info): Likewise.
        (add_subscript_info): Likewise.
        (gen_array_type_die): Likewise.
        (gen_descr_array_type_die): Likewise.
        (gen_entry_point_die): Likewise.
        (gen_enumeration_type_die): Likewise.
        (gen_formal_parameter_die): Likewise.
        (gen_subprogram_die): Likewise.
        (gen_variable_die ): Likewise.
        (gen_const_die): Likewise.
        (gen_field_die): Likewise.
        (gen_pointer_type_die): Likewise.
        (gen_reference_type_die): Likewise.
        (gen_ptr_to_mbr_type_die): Likewise.
        (gen_inheritance_die): Likewise.
        (gen_subroutine_type_die): Likewise.
        (gen_typedef_die): Likewise.
        (force_type_die): Adjust call to modified_type_die.

2016-01-19  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/standards.texi: Copy-editing for grammar, markup, and sentence
        flow throughout the file.  Fix broken link to Objective-C 2.0
        documentation.
        * doc/invoke.texi: More copy-editing; fix numerous typos and spelling
        errors.

2016-01-19  Wilco Dijkstra  <wdijkstr@arm.com>

        * ccmp.c (expand_ccmp_expr_1): Avoid spurious unused warnings.

2016-01-19  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/66223
        * ipa-devirt.c (is_cxa_pure_virtual_p): New function.
        (maybe_record_node): Record cxa_pure_virtual as the only possible
        target if there are not ohter candidates.
        (possible_polymorphic_call_target_p): Accept cxa_pure_virtual.

2016-01-19  Richard Biener  <rguenther@suse.de>

        * hsa-gen.c (get_memory_order_name): Use MEMMODEL_ constants.
        (get_memory_order): Likewise.

2016-01-19  Kirill Yukhin  <kirill.yukhin@intel.com>

        * tree-vect-stmts.c (vectorizable_store): Check
        rhs vectype.

2016-01-19  David Malcolm  <dmalcolm@redhat.com>

        PR jit/68446
        * gcc.c (driver::decode_argv): Add call to
        init_opts_obstack before init_options_struct.
        * opts.c (init_opts_obstack): Remove idempotency.
        (init_options_struct): Replace call to init_opts_obstack
        with a gcc_assert to verify that it has already been called.
        * toplev.c (toplev::main): Add call to init_opts_obstack before
        calls to init_options_struct.
        (toplev::finalize): Move cleanup of opts_obstack next to
        cleanup of save_decoded_options, clearing the latter, and
        save_decoded_options_count.

2016-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR target/69135
        * config/arm/vfp.md (l<vrint_pattern><su_optab><mode>si2): Set "conds"
        attribute to unconditional.  Remove %? from output template.

2015-01-19  Wilco Dijkstra  <wdijkstr@arm.com>
            Jiong Wang  <jiong.wang@arm.com>

        * ccmp.c (expand_ccmp_expr_1): Cost the instruction sequences
        generated from different expand order.

2015-01-19  Wilco Dijkstra  <wdijkstr@arm.com>

        * /config/aarch64/aarch64.c (aarch64_if_then_else_costs):
        Add support for CCMP costing.

2015-01-19  Wilco Dijkstra  <wdijkstr@arm.com>

        * ccmp.c (ccmp_candidate_p): Remove integer-only restriction.
        * config/aarch64/aarch64.md (fccmp<mode>): New pattern.
        (fccmpe<mode>): Likewise.
        (fcmp): Rename to fcmp and globalize pattern.
        (fcmpe): Likewise.
        * config/aarch64/aarch64.c (aarch64_gen_ccmp_first): Add FP support.
        (aarch64_gen_ccmp_next): Add FP support.

2015-01-19  Wilco Dijkstra  <wdijkstr@arm.com>

        * target.def (gen_ccmp_first): Update documentation.
        (gen_ccmp_next): Likewise.
        * doc/tm.texi (gen_ccmp_first): Update documentation.
        (gen_ccmp_next): Likewise.
        * ccmp.c (expand_ccmp_expr): Extract cmp_code from return value of
        expand_ccmp_expr_1.  Improve comments.
        * config/aarch64/aarch64.md (ccmp_and): Use if_then_else for ccmp.
        (ccmp_ior<mode>): Remove pattern.
        (cmp<mode>): Remove expand.
        (cmp): Globalize pattern.
        (cstorecc4): Use cc_register.
        (mov<mode>cc): Remove ccmp_cc_register check.
        * config/aarch64/aarch64.c (aarch64_get_condition_code_1):
        Simplify after removal of CC_DNE/* modes.
        (aarch64_ccmp_mode_to_code): Remove.
        (aarch64_print_operand): Remove 'K' case.  Merge 'm' and 'M' cases.
        In 'k' case use integer as condition.
        (aarch64_nzcv_codes): Remove inverted cases.
        (aarch64_code_to_ccmode): Remove.
        (aarch64_gen_ccmp_first): Use cmp pattern directly.  Return the correct
        comparison with CC register to be used in folowing CCMP/branch/CSEL.
        (aarch64_gen_ccmp_next): Use previous comparison and mode in CCMP
        pattern.  Return the comparison with CC register.  Invert conditions
        when bitcode is OR.
        * config/aarch64/aarch64-modes.def: Remove CC_DNE/* modes.
        * config/aarch64/predicates.md (ccmp_cc_register): Remove.

2016-01-19  Jan Hubicka  <hubicka@ucw.cz>

        * cgraphunit.c (cgraph_node::reset): Clear thunk info and
        instrumented_version.

2016-01-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69336
        * tree-ssa-scopedtables.c (avail_expr_hash): Handle all
        handled components with get_ref_base_and_extent.
        (equal_mem_array_ref_p): Adjust.

2016-01-19  Jakub Jelinek  <jakub@redhat.com>

        PR debug/65779
        * shrink-wrap.c: Include valtrack.h.
        (move_insn_for_shrink_wrap): Add DEBUG argument.  If
        MAY_HAVE_DEBUG_INSNS, call dead_debug_add on DEBUG_INSNs
        in between insn and where it will be moved to.  Call
        dead_debug_insert_temp.
        (prepare_shrink_wrap): Adjust caller.  Call dead_debug_local_init
        first and dead_debug_local_finish at the end.
        For uses and defs bitmap, handle all regs in between REGNO and
        END_REGNO, not just the first one.

2016-01-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69352
        * tree-ssa-scopedtables.c (avail_expr_hash): Check for size == -1.
        (equal_mem_array_ref_p): Constrain size and max size properly.
        Compare the reverse flag.

2016-01-19  Bernd Schmidt  <bschmidt@redhat.com>

        * ira.c (ira): Update regstat data if we deleted insns.

2016-01-19  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/68955
        PR rtl-optimization/64557
        * dse.c (record_store, check_mem_read_rtx): Don't call get_addr
        here.  Fix up formatting.
        * alias.c (get_addr): Handle VALUE +/- CONST_SCALAR_INT_P.

2016-01-19  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/69133
        * cgraphunit.c (cgraph_node::expand_thunk): When forcing gimple
        assume that the node has body.
        * cgraph.c (cgraph_node::get_untransformed_body): Use gimple_body_p
        check.

2016-01-19  Jan Hubicka  <hubicka@ucw.cz>

        * lto-streamer-out.c (lto_output): Do not stream instrumentation
        thunks.

2016-01-19  Jan Hubicka  <hubicka@ucw.cz>

        * symtab.c (symtab_node::asm_name): Do not call printable name directly.
        (symtab_node::name): Report name as unnamed if DECL_NAME is not set.

2016-01-19  Martin Jambor  <mjambor@suse.cz>
            Martin Liska  <mliska@suse.cz>
            Michael Matz  <matz@suse.de>

        * Makefile.in (OBJS): Add new source files.
        (GTFILES): Add hsa.c.
        * common.opt (disable_hsa): New variable.
        (-Whsa): New warning.
        * config.in (ENABLE_HSA): New.
        * configure.ac: Treat hsa differently from other accelerators.
        (OFFLOAD_TARGETS): Define ENABLE_OFFLOADING according to
        $enable_offloading.
        (ENABLE_HSA): Define ENABLE_HSA according to $enable_hsa.
        * doc/install.texi (Configuration): Document --with-hsa-runtime,
        --with-hsa-runtime-include, --with-hsa-runtime-lib and
        --with-hsa-kmt-lib.
        * doc/invoke.texi (-Whsa): Document.
        (hsa-gen-debug-stores): Likewise.
        * lto-wrapper.c (compile_images_for_offload_targets): Do not attempt
        to invoke offload compiler for hsa acclerator.
        * opts.c (common_handle_option): Determine whether HSA offloading
        should be performed.
        * params.def (PARAM_HSA_GEN_DEBUG_STORES): New parameter.
        * builtin-types.def (BT_FN_VOID_UINT_PTR_INT_PTR): New.
        (BT_FN_VOID_INT_OMPFN_SIZE_PTR_PTR_PTR_UINT_PTR_INT_INT): Removed.
        (BT_FN_VOID_INT_OMPFN_SIZE_PTR_PTR_PTR_UINT_PTR_PTR): New.
        * gimple-low.c (lower_stmt): Also handle GIMPLE_OMP_GRID_BODY.
        * gimple-pretty-print.c (dump_gimple_omp_for): Also handle
        GF_OMP_FOR_KIND_GRID_LOOP.
        (dump_gimple_omp_block): Also handle GIMPLE_OMP_GRID_BODY.
        (pp_gimple_stmt_1): Likewise.
        * gimple-walk.c (walk_gimple_stmt): Likewise.
        * gimple.c (gimple_build_omp_grid_body): New function.
        (gimple_copy): Also handle GIMPLE_OMP_GRID_BODY.
        * gimple.def (GIMPLE_OMP_GRID_BODY): New.
        * gimple.h (enum gf_mask): Added GF_OMP_PARALLEL_GRID_PHONY,
        GF_OMP_FOR_KIND_GRID_LOOP, GF_OMP_FOR_GRID_PHONY and
        GF_OMP_TEAMS_GRID_PHONY.
        (gimple_statement_omp_single_layout): Updated comments.
        (gimple_build_omp_grid_body): New function.
        (gimple_has_substatements): Also handle GIMPLE_OMP_GRID_BODY.
        (gimple_omp_for_grid_phony): New function.
        (gimple_omp_for_set_grid_phony): Likewise.
        (gimple_omp_parallel_grid_phony): Likewise.
        (gimple_omp_parallel_set_grid_phony): Likewise.
        (gimple_omp_teams_grid_phony): Likewise.
        (gimple_omp_teams_set_grid_phony): Likewise.
        (gimple_return_set_retbnd): Also handle GIMPLE_OMP_GRID_BODY.
        * omp-builtins.def (BUILT_IN_GOMP_OFFLOAD_REGISTER): New.
        (BUILT_IN_GOMP_OFFLOAD_UNREGISTER): Likewise.
        (BUILT_IN_GOMP_TARGET): Updated type.
        * omp-low.c: Include symbol-summary.h, hsa.h and params.h.
        (adjust_for_condition): New function.
        (get_omp_for_step_from_incr): Likewise.
        (extract_omp_for_data): Moved parts to adjust_for_condition and
        get_omp_for_step_from_incr.
        (build_outer_var_ref): Handle GIMPLE_OMP_GRID_BODY.
        (fixup_child_record_type): Bail out if receiver_decl is NULL.
        (scan_sharing_clauses): Handle OMP_CLAUSE__GRIDDIM_.
        (scan_omp_parallel): Do not create child functions for phony
        constructs.
        (check_omp_nesting_restrictions): Handle GIMPLE_OMP_GRID_BODY.
        (scan_omp_1_op): Checking assert we are not remapping to
        ERROR_MARK.  Also also handle GIMPLE_OMP_GRID_BODY.
        (parallel_needs_hsa_kernel_p): New function.
        (expand_parallel_call): Register apprpriate parallel child
        functions as HSA kernels.
        (grid_launch_attributes_trees): New type.
        (grid_attr_trees): New variable.
        (grid_create_kernel_launch_attr_types): New function.
        (grid_insert_store_range_dim): Likewise.
        (grid_get_kernel_launch_attributes): Likewise.
        (get_target_argument_identifier_1): Likewise.
        (get_target_argument_identifier): Likewise.
        (get_target_argument_value): Likewise.
        (push_target_argument_according_to_value): Likewise.
        (get_target_arguments): Likewise.
        (expand_omp_target): Call get_target_arguments instead of looking
        up for teams and thread limit.
        (grid_expand_omp_for_loop): New function.
        (grid_arg_decl_map): New type.
        (grid_remap_kernel_arg_accesses): New function.
        (grid_expand_target_kernel_body): New function.
        (expand_omp): Call it.
        (lower_omp_for): Do not emit phony constructs.
        (lower_omp_taskreg): Do not emit phony constructs but create for them
        a temporary variable receiver_decl.
        (lower_omp_taskreg): Do not emit phony constructs.
        (lower_omp_teams): Likewise.
        (lower_omp_grid_body): New function.
        (lower_omp_1): Call it.
        (grid_reg_assignment_to_local_var_p): New function.
        (grid_seq_only_contains_local_assignments): Likewise.
        (grid_find_single_omp_among_assignments_1): Likewise.
        (grid_find_single_omp_among_assignments): Likewise.
        (grid_find_ungridifiable_statement): Likewise.
        (grid_target_follows_gridifiable_pattern): Likewise.
        (grid_remap_prebody_decls): Likewise.
        (grid_copy_leading_local_assignments): Likewise.
        (grid_process_kernel_body_copy): Likewise.
        (grid_attempt_target_gridification): Likewise.
        (grid_gridify_all_targets_stmt): Likewise.
        (grid_gridify_all_targets): Likewise.
        (execute_lower_omp): Call grid_gridify_all_targets.
        (make_gimple_omp_edges): Handle GIMPLE_OMP_GRID_BODY.
        * tree-core.h (omp_clause_code): Added OMP_CLAUSE__GRIDDIM_.
        (tree_omp_clause): Added union field dimension.
        * tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE__GRIDDIM_.
        * tree.c (omp_clause_num_ops): Added number of arguments of
        OMP_CLAUSE__GRIDDIM_.
        (omp_clause_code_name): Added name of OMP_CLAUSE__GRIDDIM_.
        (walk_tree_1): Handle OMP_CLAUSE__GRIDDIM_.
        * tree.h (OMP_CLAUSE_GRIDDIM_DIMENSION): New.
        (OMP_CLAUSE_SET_GRIDDIM_DIMENSION): Likewise.
        (OMP_CLAUSE_GRIDDIM_SIZE): Likewise.
        (OMP_CLAUSE_GRIDDIM_GROUP): Likewise.
        * passes.def: Schedule pass_ipa_hsa and pass_gen_hsail.
        * tree-pass.h (make_pass_gen_hsail): Declare.
        (make_pass_ipa_hsa): Likewise.
        * ipa-hsa.c: New file.
        * lto-section-in.c (lto_section_name): Add hsa section name.
        * lto-streamer.h (lto_section_type): Add hsa section.
        * timevar.def (TV_IPA_HSA): New.
        * hsa-brig-format.h: New file.
        * hsa-brig.c: New file.
        * hsa-dump.c: Likewise.
        * hsa-gen.c: Likewise.
        * hsa.c: Likewise.
        * hsa.h: Likewise.
        * toplev.c (compile_file): Call hsa_output_brig.
        * hsa-regalloc.c: New file.

2016-01-18  Jeff Law  <law@redhat.com>

        PR tree-optimization/69320
        * tree-ssa-dom.c (record_edge_info): For comparisons against a boolean
        ranged object, do nothing if the RHS constant is not [0..1].
        (optimize_stmt): Comparing a boolean ranged object against a
        constant outside [0..1] results in a compile-time constant.

        * tree-ssanames.c (ssa_name_has_boolean_range): Remove unnecessary
        test.

2016-01-18  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (Invoking GCC): Add new section to menu.
        (Option Summary): Update to reflect new section and moved options.
        (C++ Dialect Options): Move -fstats to new section.
        (Debugging Options): Move all dump, statistics, and other GCC
        developer options to new section.  Rewrite section introduction
        and re-order remaining options to put the more basic ones first.
        (Optimization Options): Move -fira-verbose and -flto-report* to
        new section.
        (Developer Options): New section incorporating moved options.
        * doc/cppopts.texi (-dM): Update cross-reference.

2016-01-18  Richard Henderson  <rth@redhat.com>

        PR target/69176
        * config/aarch64/aarch64.md (add<GPI>3): Move long immediate
        operands to pseudo only if CSE is expected.  Split long immediate
        operands only after reload, and for the stack pointer.
        (*add<GPI>3_pluslong): Remove.
        (*addsi3_aarch64, *adddi3_aarch64): Merge into...
        (*add<GPI>3_aarch64): ... here.  Add r/rk/Upl alternative.
        (*addsi3_aarch64_uxtw): Add r/rk/Upl alternative.
        (*add<GPI>3 peepholes): New.
        (*add<GPI>3 splitters): New.
        * config/aarch64/constraints.md (Upl): New.
        * config/aarch64/predicates.md (aarch64_pluslong_strict_immedate): New.

2016-01-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69297
        * tree-vect-slp.c (vect_bb_slp_scalar_cost): Count each scalar
        stmt at most once.
        (vect_bb_vectorization_profitable_p): Clear visited flag again.

2016-01-18  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR middle-end/68542
        * fold-const.c (fold_binary_op_with_conditional_arg): Bail out for case
        of mixind vector and scalar types.
        (fold_relational_const): Add handling of vector
        comparison with boolean result.
        * tree-cfg.c (verify_gimple_comparison): Add argument CODE, allow
        comparison of vector operands with boolean result for EQ/NE only.
        (verify_gimple_assign_binary): Adjust call for verify_gimple_comparison.
        (verify_gimple_cond): Likewise.
        * tree-vrp.c (extract_code_and_val_from_cond_with_ops): Modify check on
        valid type of VAL.

2016-01-18  Joseph Myers  <joseph@codesourcery.com>

        * config/mips/mips.h (ISA_HAS_PAIRED_SINGLE): Require
        !TARGET_OCTEON.

2016-01-18  Richard Biener  <rguenther@suse.de>

        PR middle-end/69308
        * gimple.c (gimple_could_trap_p_1): Handle GIMPLE_COND.

2016-01-18  Tom de Vries  <tom@codesourcery.com>

        * passes.def: Add pass_parallelize_loops to pass_oacc_kernels.

2016-01-18  Tom de Vries  <tom@codesourcery.com>

        * omp-low.c (set_oacc_fn_attrib): Make extern.
        * omp-low.h (set_oacc_fn_attrib): Declare.
        * tree-parloops.c (struct reduction_info): Add reduc_addr field.
        (create_call_for_reduction_1): Handle case that reduc_addr is non-NULL.
        (create_parallel_loop, gen_parallel_loop, try_create_reduction_list):
        Add and handle function parameter oacc_kernels_p.
        (find_reduc_addr, get_omp_data_i_param): New function.
        (ref_conflicts_with_region, oacc_entry_exit_ok_1)
        (oacc_entry_exit_single_gang, oacc_entry_exit_ok): New function.
        (parallelize_loops): Add and handle function parameter oacc_kernels_p.
        Calculate dominance info.  Skip loops that are not in a kernels region
        in oacc_kernels_p mode.  Skip inner loops of parallelized loops.
        (pass_parallelize_loops::execute): Call parallelize_loops with
        oacc_kernels_p argument.
        (pass_parallelize_loops::clone, pass_parallelize_loops::set_pass_param):
        New member function.
        (pass_parallelize_loops::bool oacc_kernels_p): New member var.
        * passes.def: Add argument to pass_parallelize_loops instantation.

2016-01-18  Tom de Vries  <tom@codesourcery.com>

        * tree-parloops.c (pass_parallelize_loops::execute): Allow
        pass_parallelize_loops to be run outside the loop pipeline.

2016-01-18  Alan Lawrence  <alan.lawrence@arm.com>

        * tree-scalar-evolution.c (follow_copies_to_constant): New.
        (analyze_initial_condition, analyze_scalar_evolution_1): Call previous.

2016-01-18  Alan Lawrence  <alan.lawrence@arm.com>

        PR target/63679
        * tree-ssa-scopedtables.c (avail_expr_hash): Hash MEM_REF and ARRAY_REF
        using get_ref_base_and_extent.
        (equal_mem_array_ref_p): New.
        (hashable_expr_equal_p): Add call to previous.

2016-01-18  Alan Lawrence  <alan.lawrence@arm.com>

        PR target/63679
        * tree-sra.c (disqualified_constants, constant_decl_p): New.
        (sra_initialize): Allocate disqualified_constants.
        (sra_deinitialize): Free disqualified_constants.
        (disqualify_candidate): Update disqualified_constants when appropriate.
        (create_access): Scan for constant-pool entries as we go along.
        (scalarizable_type_p): Add check against type_contains_placeholder_p.
        (maybe_add_sra_candidate): Allow constant-pool entries.
        (load_assign_lhs_subreplacements): Bind debug for constant pool vars.
        (initialize_constant_pool_replacements): New.
        (sra_modify_assign): Avoid mangling assignments created by previous,
        and don't generate writes into constant pool.
        (sra_modify_function_body): Call initialize_constant_pool_replacements.

2016-01-18  Ilya Enkovich  <enkovich.gnu@gmail.com>

        * config/i386/i386.c (scalar_to_vector_candidate_p): Support
        andnot instruction.
        (scalar_chain::convert_op): Likewise.
        * config/i386/i386.md (*andndi3_doubleword): New.

2016-01-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69170
        * tree-vect-slp.c (vect_build_slp_tree): Verify we are not
        building a vector from scalar results of a pattern stmt.

2016-01-18  Jakub Jelinek  <jakub@redhat.com>

        * haifa-sched.c (autopref_multipass_init): Work around
        -Wmaybe-uninitialized warning.

2016-01-18  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (thumb1_reorg): Check that the comparison is
        against the constant 0.

2016-01-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/68799
        * gimple-ssa-strength-reduction.c (create_phi_basis): Directly
        look up phi candidates in the statement-candidate map.
        (phi_add_costs): Likewise.
        (record_phi_increments): Likewise.
        (phi_incr_cost): Likewise.
        (ncd_with_phi): Likewise.
        (all_phi_incrs_profitable): Likewise.

2016-01-17  Jakub Jelinek  <jakub@redhat.com>

        * omp-low.c (mark_loops_in_oacc_kernels_region): Work around
        -Wmaybe-uninitialized warning.

2016-01-16  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (Invoking GCC): Add new section to menu.
        (Option Summary): Update to reflect new section and moved options.
        (C++ Dialect Options): Move -fvtable-verify and related options.
        (Debugging Options): Move Sanitizer, Pointer Bounds Checker,
        and profiling-related options.
        (Optimization Options): Move profile generation options and
        -fstack-protector and related options.
        (Instrumentation Options): New section incorporating moved options.
        (Code Generation Options): Move -finstrument-functions and
        related options, -fstack-check, -fstack-limit*, and -fbounds-check.

2016-01-16  Tom de Vries  <tom@codesourcery.com>

        * passes.def: Move pass_expand_omp_ssa out of pass_parallelize_loops.

2016-01-16  Tom de Vries  <tom@codesourcery.com>

        * omp-low.c (expand_omp_atomic_fetch_op):  Release defs of update stmt.

2016-01-16  Richard Sandiford  <richard.sandiford@arm.com>

        * hash-table.h (hash_table::empty): Turn into an inline wrapper
        that checks whether the table is already empty.  Rename the
        original implementation to...
        (hash_table::empty_slot): ...this new private function.

2016-01-15  David Malcolm  <dmalcolm@redhat.com>

        PR diagnostic/68899
        * diagnostic-show-locus.c (layout::print_source_line): Move x
        offset of line until after call to
        get_line_width_without_trailing_whitespace.

2016-01-15  Jeff Law  <law@redhat.com>

        PR tree-optimization/69270
        * tree-ssanames.c (ssa_name_has_boolean_range): Moved here from
        tree-ssa-dom.c.  Improve test for [0..1] ranve from VRP.
        * tree-ssa-dom.c (ssa_name_has_boolean_range): Remove.
        * tree-ssanames.h (ssa_name_has_boolean_range): Prototype.
        * tree-ssa-uncprop.c (associate_equivalences_with_edges): Use
        ssa_name_has_boolean_range and constant_boolean_node.

2016-01-15  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/69030
        * lra-spills.c (remove_pseudos): Check nrefs and make the function
        returning bool.
        (spill_pseudos): Delete debug insn for dead pseudo.
        (lra_spill): Initiate spill_hard_reg and slots memory separately.

2016-01-15  Jiong Wang  <jiong.wang@arm.com>

        * config/aarch64/aarch64-builtins.c (aarch64_types_unopus_qualifiers):
        New.
        (TYPES_UNOPUS): Likewise.
        * config/aarch64/aarch64-simd-builtins.def (lbtruncuv2sf): Correct
        builtin type, from UNOP to UNOPUS.
        (lbtruncuv4sf): Likewise.
        (lbtruncuv2df): Likewise.
        (lrounduv2sf): Likewise.
        (lrounduv4sf): Likewise.
        (lrounduv2df): Likewise.
        (lroundusf): Likewise.
        (lroundusf): Likewise.
        (lceiluv2sf): Likewise.
        (lceiluv4sf): Likewise.
        (lceiluv2df): Likewise.
        (lceilusf): Likewise.
        (lceiludf): Likewise.
        (lflooruv2sf): Likewise.
        (lflooruv4sf): Likewise.
        (lflooruv2df): Likewise.
        (lfloorusf): Likewise.
        (lfloorudf): Likewise.
        (lfrintnuv2sf): Likewise.
        (lfrintnuv4sf): Likewise.
        (lfrintnuv2df): Likewise.
        (lfrintnusf): Likewise.
        (lfrintnudf): Likewise.
        * config/aarch64/arm_neon.h (vcvt_u32_f32): Remove unncessary type
        conversion.
        (vcvtq_u32_f32): Likewise.
        (vcvtq_u64_f64): Likewise.
        (vcvta_u32_f32): Likewise.
        (vcvtaq_u32_f32): Likewise.
        (vcvtaq_u64_f64): Likewise.
        (vcvtm_u32_f32): Likewise.
        (vcvtmq_u32_f32): Likewise.
        (vcvtmq_u64_f64): Likewise.
        (vcvtn_u32_f32): Likwise.
        (vcvtnq_u32_f32): Likewise.
        (vcvtnq_u64_f64): Likewise.
        (vcvtp_u32_f32): Likewise.
        (vcvtpq_u32_f32): Likewise.
        (vcvtpq_u64_f64): Likewise.
        (vcvtmd_u64_f64): Likewise.
        (vcvtms_u32_f32): Likewise.
        (vcvtad_u64_f64): Likewise.
        (vcvtas_u32_f32): Likewise.
        (vcvtnd_u64_f64): Likewise.
        (vcvtns_u32_f32): Likewise.
        (vcvtpd_u64_f64): Likewise.
        (vcvtps_u32_f32): Likewise.

2016-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (aarch64_if_then_else_costs): Handle
        CSEL of zero_extended registers.

2016-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (aarch64_rtx_costs, COMPARE case):
        Handle COMPARE of ZERO_EXTRACT against zero form of TST-immediate.

2016-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (aarch64_process_one_target_attr): Return
        false when argument string is not found in the attributes table
        at all.

2016-01-15  David Edelsohn  <dje.gcc@gmail.com>

        PR target/68609
        * config/rs6000/rs6000.c (rs6000_emit_msub): Delete.
        (rs6000_emit_swsqrt): Convert to Goldschmidt's Algorithm
        * config/rs6000/rs6000.md (sqrt<mode>2): Limit swsqrt to high
        precision estimate.

2016-01-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/66856
        * tree-vect-loop.c (vect_transform_loop): Free SLP instances here.
        * tree-vect-slp.c (vect_free_slp_tree): Decrement stmt reference count.
        (vect_create_new_slp_node): Increment stmt reference count.
        (vect_get_and_check_slp_defs): Make sure stmts are nor already in
        an SLP tree before swapping operands.
        (vect_build_slp_tree): Likewise.
        (destroy_bb_vec_info): Free stmt info after SLP instances.
        * tree-vect-stmts.c (new_stmt_vec_info): Initialize reference count.
        * tree-vectorizer.h (struct _stmt_vec_info): Add num_slp_uses field.
        (STMT_VINFO_NUM_SLP_USES): New macro.

2016-01-15  Richard Biener  <rguenther@suse.de>

        PR debug/69137
        * dwarf2out.c (add_linkage_name_raw): New function split out from ...
        (add_linkage_name): ... here.
        (gen_typedef_die): Use add_linkage_name_raw instead of
        add_linkage_attr to delay DECL_ASSEMBLER_NAME computation
        if necessary.

2016-01-15  Cesar Philippidis  <cesar@codesourcery.com>

        * gimplify.c (oacc_default_clause): Decode reference and pointer
        types for both kernels and parallel regions.

2016-01-15  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/69246
        * calls.c (emit_call_1): Force n_popped to zero for sibcalls.

2016-01-15  Ilya Enkovich  <enkovich.gnu@gmail.com>

        * config/i386/i386.c (scalar_chain::compute_convert_gain): Fix typo.
        (convert_scalars_to_vector): Likewise.

2016-01-15  Jonathan Wakely  <jwakely@redhat.com>

        * doc/extend.texi (Type Traits): Fix grammar.

2016-01-15  Martin Jambor  <mjambor@suse.cz>

        * tree-inline.c (remap_decl): Use existing dclarations if
        remapping a type and prevent_decl_creation_for_types.
        (replace_locals_stmt): Do an initial remapping of non-VLA typed
        decls first.  Do real remapping with
        prevent_decl_creation_for_types set.
        * tree-inline.h (copy_body_data): New field
        prevent_decl_creation_for_types, moved remap_var_for_cilk to avoid
        padding.

2016-01-15  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/s390.opt (mmvcle): More verbose help text.

2016-01-15  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/s390.opt: Add period to -mzvector option text.

2016-01-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/68961
        * tree-vect-slp.c (vect_analyze_slp_cost_1): Consider cost
        of invariants in stores again.

2016-01-15  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * config/arm/t-rtems: Add cortex-m7/fpv5-d16 multilib.

2016-01-15  Ilya Enkovich  <enkovich.gnu@gmail.com>

        * config/i386/i386.c (ix86_expand_branch): Don't split
        DI mode xor instruction to SI mode.

2016-01-15  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/68148
        * ipa-icf.c (sem_function::merge): Virtual functions may become
        reachable even if they address is not taken and there are no
        idrect calls.

2016-01-15  Jan Hubicka  <hubicka@ucw.cz>

        * lto-streamer-out.c (subtract_estimated_size): New function.
        (get_symbol_initial_value): Use it.

2016-01-15  Christian Bruel  <christian.bruel@st.com>

        PR target/65837
        * config/arm/arm-builtins.c (ARM_BUILTIN_CRYPTO_BASE): New enum tag.
        (arm_init_neon_builtins_internal): Rename arm_init_neon_builtins,
        (arm_init_crypto_builtins_internal): Rename arm_init_crypto_builtins.
        use add_builtin_function_ext_scope instead of add_builtin_function.
        (neon_set_p, neon_crypto_set_p): Remove.
        (arm_init_builtins): Always call arm_init_neon_builtins and
        arm_init_crypto_builtins.
        (arm_expand_builtin): Check that builtins are allowed for the arch.
        * config/arm/arm-protos.h (arm_init_neon_builtins): Remove prototype.
        * config/arm/arm.c (arm_valid_target_attribute_tree): Remove
        arm_init_neon_builtins call.

2016-01-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69117
        * tree-ssa-sccvn.h (struct vn_ssa_aux): Add info member.
        * tree-ssa-sccvn.c (set_ssa_val_to): Save and adjust SSA name info
        of the leader conservatively.
        (free_scc_vn): Restore original SSA name infos.

2016-01-14  Jeff Law  <law@redhat.com>

        PR tree-optimization/69270
        * tree-ssa-dom.c (ssa_name_has_boolean_range): If the type has a
        single bit of precision, verify it's also unsigned.
        (record_edge_info): Use constant_boolean_node rather than fold_convert
        to convert boolean_true/boolean_false to the right type.

2016-01-14  Richard Henderson  <rth@redhat.com>

        PR rtl-opt/69014
        * loop-doloop.c (record_reg_sets): New.
        (doloop_optimize): Reject the transform if the sequence
        clobbers registers live at the end of the loop block.
        (doloop_optimize_loops): Enable df_live if needed.

2016-01-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-builtin.def: Revert 2016-01-13 change.
        * config/rs6000/rs6000.c: Likewise.
        * config/rs6000/rs6000.h: Likewise.
        * config/rs6000/rs6000.md: Likewise.
        * doc/extend.texi: Likewsie.

2016-01-14  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (ssa_name_has_boolean_range): Fix comment
        typo.

2016-01-14  Richard Henderson  <rth@redhat.com>

        PR c/69272
        PR tree-opt/68964
        * trans-mem.c (tm_log_emit_stmt): Fix unit size to bit size.
        * tree.c (build_tm_vector_builtins): Use builtin_decl_explicit_p
        instead of builtin_decl_declared_p to test for declaration.

2016-01-14  Nicklas Bo Jensen  <nbjensen@gmail.com>

        * doc/loop.texi (Loop Analysis and Representation): Document
        loop_depth function.

2016-01-14  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/68773
        * omp-low.c (expand_omp_target): Don't set force_output.
        * varpool.c (varpool_node::get_create): Same.
        * lto-cgraph.c (input_offload_tables): Mark entries in offload_vars and
        offload_funcs with force_output.

2016-01-14  Jakub Jelinek  <jakub@redhat.com>

        PR debug/69244
        * lra-eliminations.c (move_plus_up): Don't change anything if either
        the outer or inner subreg mode is not MODE_INT.
        * dwarf2out.c (mem_loc_descriptor): For SUBREG, if outer mode is
        integral <= DWARF2_ADDR_SIZE, convert to untyped afterwards.

2016-01-14  Alan Lawrence  <alan.lawrence@arm.com>

        * doc/md.texi (reduc_smin_@var{m}, reduc_smax_@var{m},
        reduc_umin_@var{m}, reduc_umax_@var{m}, reduc_splus_@var{m},
        reduc_uplus_@var{m}): Remove.
        * expr.c (expand_expr_real_2): Remove expansion path for
        reduc_[us](min|max|plus) optabs.
        * optabs-tree.c (scalar_reduc_to_vector): Remove.
        * optabs-tree.h (scalar_reduc_to_vector): Remove.
        * optabs.def (reduc_smax_optab, reduc_smin_optab, reduc_splus_optab,
        reduc_umax_optab, reduc_umin_optab, reduc_uplus_optab): Remove.
        * tree-vect-loop.c (vectorizable_reduction): Remove test for
        reduc_[us](min|max|plus) optabs.

2016-01-14  Alan Lawrence  <alan.lawrence@arm.com>

        * config/mips/mips-ps-3d.md (reduc_splus_v2sf): Remove.
        (reduc_plus_scal_v2sf): New.
        (reduc_smax_v2sf): Rename to...
        (reduc_smax_scal_v2sf): ...here, make result SFmode, add vec_extract.
        (reduc_smin_v2sf): Rename to...
        (reduc_smin_scal_v2sf): ...here, make result SFmode, add vec_extract.

2016-01-14  Jan Hubicka  <hubicka@ucw.cz>

        * alias.c (compare_base_symbol_refs): New function.
        (rtx_equal_for_memref_p, base_alias_check, memrefs_conflict_p): Use
        it.

2016-01-14  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/68146
        PR tree-optimization/69155
        * tree-complex.c: Include cfganal.h.
        (phis_to_revisit): New variable.
        (extract_component): Add phiarg_p argument.  Assert that returned
        SSA_NAME has non-NULL SSA_NAME_DEF_STMT unless phiarg_p is true.
        (update_phi_components): Partly rewrite to use loop over real/imag
        components instead of code duplication.  If extract_component returns
        SSA_NAME with NULL SSA_NAME_DEF_STMT, store SSA_NAME_VAR or
        create_tmp_reg into the PHI node instead, and mention the phi triplet
        in phis_to_revisit.
        (tree_lower_complex): Walk bbs in rpo order.  Adjust phis recorded
        in phis_to_revisit at the end.

2016-01-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/68060
        * tree-vect-loop.c (vect_is_simple_reduction): Check the
        outer loop reduction is only used in the inner loop before
        detecting a double reduction.

2016-01-14  Jakub Jelinek  <jakub@redhat.com>

        PR target/68269
        * combine.c (expand_field_assignment): Punt if compute_mode is
        unsupported scalar mode.

2016-01-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/66856
        * tree-vect-slp.c (vect_build_slp_tree): Refactor to build
        SLP node only if it built successfully.
        (vect_analyze_slp_instance): Adjust.

2016-01-14  Jeff Law  <law@redhat.com>

        PR tree-optimization/69270
        * tree-ssa-dom.c (ssa_name_has_boolean_range): New function.
        (record_edge_info): Use it.  Convert boolean_{true,false}_node
        to the type of op0.

2016-01-13  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/66487
        * ipa-polymorphic-call.c (inlined_polymorphic_ctor_dtor_block_p):
        use block_ultimate_origin
        (noncall-stmt_may_be_vtbl_ptr_store): Likewise.

2016-01-13  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (Submodel Options): Rename section to
        "Machine-Dependent Options" to better reflect its content.
        Rewrite introductory text to remove archaic CPU names.
        Update references.

2016-01-13  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (Code Gen Options): Move section up in file,
        before target-specific options.  Update menu and option summary
        to reflect the new section ordering.

2016-01-13  Jonathan Wakely  <jwakely@redhat.com>

        * doc/invoke.texi (C Dialect Options): Adjust -std default for C++.
        (C++ Dialect Options): Add cross-reference to -std option.
        * doc/standards.texi (C++ Language): Document C++14 support.

2016-01-13  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-builtin.def (BU_FLOAT128_2): Add support
        for pack/unpack functions for __ibm128.
        (PACK_IF): Likewise.
        (UNPACK_IF): Likewise.

        * config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add
        support for __ibm128 pack/unpack functions.
        (rs6000_invalid_builtin): Likewise.
        (rs6000_init_builtins): Likewise.
        (rs6000_opt_masks): Likewise.

        * config/rs6000/rs6000.h (MASK_FLOAT128): Add short name.
        (RS6000_BTM_FLOAT128): Add support for __ibm128 pack/unpack
        functions
        (RS6000_BTM_COMMON): Likewise.

        * config/rs6000/rs6000.md (f128_vsx): New mode attribute.
        (unpack<mode>): Use FMOVE128_FPR iterator instead of FMOVE128, to
        disallow __builtin_{pack,unpack}_longdouble if long double is IEEE
        128-bit floating point.  Add support for the double values to be
        in Altivec registers for TF/IF packing and unpacking, but restrict
        TD packing sub-fields to be FPR registers.  Don't allow overlapped
        register support for packing.  Allow pack inputs to be memory
        locations.  Don't build generator functions for unpack<mode>_dm
        and unpack<mode>_nodm.
        (unpack<mode>_dm): Likewise.
        (unpack<mode>_nodm): Likewise.
        (pack<mode>): Likewise.

        * config/rs6000/rs6000-builtin.def (__builtin_pack_ibm128): Add
        built-in functions to pack/unpack explicit __ibm128 values.
        (__builtin_unpack_ibm128): Likewise.

        * doc/extend.texi (PowerPC Built-in Functions): Document
        __builtin_pack_ibm128 and __builtin_unpack_ibm128.

2016-01-13  Bernd Schmidt  <bschmidt@redhat.com>

        PR c/66208
        * c-common.c (check_function_nonnull): Remove unnecessary declaration.
        Add new arg loc and pass it down as context.
        (check_nonnull_arg): Don't mark ctx arg as unused. Use it as a pointer
        to the location to use for the warning.
        (check_function_arguments): New arg loc.  All callers changed.  Pass
        it to check_function_nonnull.
        * c-common.h (check_function_arguments): Adjust declaration.

2016-01-13  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/69156
        * gimple.c (validate_type): Removed.
        (gimple_builtin_call_types_compatible_p): Use
        useless_type_conversion_p instead of validate_type.
        * value-prof.c (gimple_stringop_fixed_value): Fold
        icall_size to correct type.

2016-01-13  Jonathan Wakely  <jwakely@redhat.com>

        * doc/extend.texi (__atomic Builtins): Clarify compare_exchange
        effects.

2016-01-13  Richard Henderson  <rth@redhat.com>

        PR tree-opt/68964
        * target.def (builtin_tm_load, builtin_tm_store): Remove.
        * config/i386/i386.c (ix86_builtin_tm_load): Remove.
        (ix86_builtin_tm_store): Remove.
        (TARGET_VECTORIZE_BUILTIN_TM_LOAD): Remove.
        (TARGET_VECTORIZE_BUILTIN_TM_STORE): Remove.
        * doc/tm.texi.in (TARGET_VECTORIZE_BUILTIN_TM_LOAD): Remove.
        (TARGET_VECTORIZE_BUILTIN_TM_STORE): Remove.
        * doc/tm.texi: Rebuild.

        * gtm-builtins.def (BUILT_IN_TM_MEMCPY_RNWT): New.
        (BUILT_IN_TM_MEMCPY_RTWN): New.
        * trans-mem.c (tm_log_emit_stmt): Rearrange code for better
        fallback from vector to integer helpers.
        (build_tm_load): Handle vector types directly, instead of
        via target hook.
        (build_tm_store): Likewise.
        (expand_assign_tm): Prepare for register types not handled by
        the above.  Copy them to memory and use memcpy.
        * tree.c (tm_define_builtin): New.
        (find_tm_vector_type): New.
        (build_tm_vector_builtins): New.
        (build_common_builtin_nodes): Call it.

2016-01-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (TARGET_FLT_EVAL_METHOD): Return -1 for
        TARGET_SSE_MATH without TARGET_SSE2.  Rewrite.

2016-01-13  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/69169
        * tree-ssa-structalias.c (create_variable_info_for_1): Add and handle
        handled_struct_type param.
        (create_variable_info_for, intra_create_variable_infos): Call
        create_variable_info_for_1 with extra arg.

2016-01-13  Yvan Roux  <yvan.roux@linaro.org>

        * config/arm/arm-arches.def: Remove spurious whitespace in "armv8.1-a"
        and "armv8.1-a+crc" entries.

2016-01-13  Alexander Fomin  <alexander.fomin@intel.com>

        PR target/69228
        * config/i386/sse.md (define_expand "avx512pf_gatherpf<mode>sf"):
        Change first operand predicate from register_or_constm1_operand
        to register_operand.
        (define_expand "avx512pf_gatherpf<mode>df"): Likewise.
        (define_expand "avx512pf_scatterpf<mode>sf"): Likewise.
        (define_expand "avx512pf_scatterpf<mode>df"): Likewise.
        (define_insn "*avx512pf_gatherpf<mode>sf"): Remove.
        (define_insn "*avx512pf_gatherpf<mode>df"): Likewise.
        (define_insn "*avx512pf_scatterpf<mode>sf"): Likewise.
        (define_insn "*avx512pf_scatterpf<mode>df"): Likewise.
        * config/i386/i386.c (ix86_expand_builtin): Remove first operand
        comparison with constm1_rtx from vec_prefetch_gen part.

2016-01-13  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69013
        * tree-ssa-uninit.c (prune_uninit_phi_opnds_in_unrealizable_paths):
        Exchange assert for a test.

2016-01-13  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/69247
        * config/s390/s390.md (bswaphi splitter): Use simplify_gen_subreg.

2016-01-13  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69242
        * tree-ssa-sccvn.c (visit_reference_op_load): Replace bogus
        assert with a check.

2016-01-13  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69186
        * tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
        Properly guard vect_update_misalignment_for_peel call.

2016-01-12  Jeff Law  <law@redhat.com>

        PR tree-optimization/pr67755
        * tree-ssa-threadupdate.c (struct ssa_local_info_t): Add new field
        "need_profile_correction".
        (thread_block_1): Initialize new field to false by default.  If we
        have multiple thread paths through a common joiner to different
        final targets, then set new field to true.
        (compute_path_counts): Only do count adjustment when it's really
        needed.

2016-01-12  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (Spec Files): Move section down in file, past
        all command-line option descriptions.

2016-01-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        PR middle-end/54809
        * doc/gty.texi: Remove documentation of mark_hook.
        * gengtype.c (struct write_types_data): Remove code to support
        mark_hook attribute.
        (walk_type): Likewise.
        (write_func_for_structure): Likewise.

2016-01-12  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (Option Summary) Move -no-canonical-prefixes to
        Directory Options, and -specs= to Overall Options.
        (Overall Options): Adjust similarly.  Reorder to group related
        options together.  Make -specs= cross-reference the spec file details.
        (Directory Options): Adjust similarly.

2016-01-12  Jeff Law  <law@redhat.com>

        * tree-ssa-threadupdate.c: Various whitespace and typo fixes.

2016-01-12  Olivier Hainque  <hainque@adacore.com>

        * gcc.c (spec_undefvar_allowed): New global.
        (process_command): Set to true when running for --version or --help,
        alone or together.
        (getenv_spec_function): When the variable is not defined, use the
        variable name as the variable value if we're allowed not to issue
        a fatal error.

2016-01-12  Bin Cheng  <bin.cheng@arm.com>

        PR tree-optimization/68911
        * tree-vrp.c (adjust_range_with_scev): Check overflow in range
        information computed for expression "init + nit * step".

2016-01-12  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (Invoking GCC): Copy-edit.  Incorporate information
        about name of GCC executable.  Remove deleted node from menu.
        (Directory Options) <-B>: Remove cross-reference to deleted node.
        (Target Options): Delete section.

2016-01-12  Christian Bruel  <christian.bruel@st.com>

        PR target/69180
        * config/arm/arm-c.c (arm_pragma_target_parse): Set NODE_CONDITIONAL
        for __ARM_NEON_FP, __ARM_FP, _ARM_FEATURE_LDREX.

2016-01-12  Jakub Jelinek  <jakub@redhat.com>

        PR target/69198
        * config/i386/i386.c (ix86_expand_special_args_builtin): Ensure
        aligned_mem is properly set for AVX512-VL floating point masked
        stores.

        PR target/69175
        * ifcvt.c (cond_exec_process_if_block): When removing the last
        insn from then_bb, remove also any possible barriers that follow it.

2016-01-12  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/68456
        PR target/69226
        * config/i386/iamcu.h (SIZE_TYPE): New macro.
        (PTRDIFF_TYPE): Likewise.
        (WCHAR_TYPE): Likewise.
        (WCHAR_TYPE_SIZE): Likewise.
        (STDINT_LONG32): Likewise.

2016-01-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69053
        * tree-vect-loop.c (get_initial_def_for_reduction): Properly
        convert initial value for cond reductions.

2016-01-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69007
        * tree-vect-patterns.c (vect_vect_recog_func_ptrs): Move
        widen_sum after dot_prod and sad.

2016-01-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69168
        * tree-vect-loop.c (vect_analyze_loop_2): Reset both main and
        pattern stmt SLP type.
        * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Patterns may
        end up unused so cope with that case.

2016-01-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69157
        * tree-vect-stmts.c (vectorizable_mask_load_store): Check
        stmts def type only during analyze phase.
        (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.

2016-01-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69174
        * tree-vect-stmts.c (vect_mark_relevant): Remove excessive vertical
        space.
        (vectorizable_load): Properly compute the number of loads needed
        for permuted strided SLP loads and do not spuriously assign
        to SLP_TREE_VEC_STMTS.

2016-01-12  Andris Pavenis  <andris.pavenis@iki.fi>

        * config/i386/djgpp.h (PREFERRED_DEBUGGING_TYPE): Define to DWARF2
        (TARGET_ASM_OUTPUT_IDENT): Define to default_asm_output_ident_directive
        (MD_EXEC_PREFIX): Remove.
        (MD_STARTFILE_PREFIX) Removee.
        (FILE_NAME_ABSOLUTE_P): Remove.
        (CPP_SPEC): Do not read macros from sys/version.h.
        (LINK_COMMAND_SPEC): Remove.
        (LOCAL_INCLUDE_DIR): Remove.
        (TARGET_ASM_NAMED_SECTION): Define to i386_djgpp_asm_named_section
        (TARGET_OS_CPP_BUILTINS): Add DJGPP (non ISO only), __DJGPP, __DJGPP__, unix.
        (POST_LINK_SPEC): Define to invoke stubify after linker
        (LIBSTDCXX): Remove define
        (DBX_REGISTER_NUMBER): Define to svr4_dbx_register_map.
        (DEFAULT_PCC_STRUCT_RETURN): Define to 1.
        (SUBTARGET_OVERRIDE_OPTIONS): Remove warning about -mbnu2210.
        (SUBTARGET_OVERRIDE_OPTIONS): Ignore -fPIC and generate message.
        (SUBTARGET_OVERRIDE_OPTIONS): Default to DWARF2 debugging info.
        (IX86_MAYBE_NO_LIBGCC_TFMODE): Remove.
        (i386_djgpp_asm_named_section): Add propotype of new procedure

        * config/i386/xm-djgpp.h (NATIVE_SYSTEM_HEADER_DIR): Define.
        (MD_EXEC_PREFIX): Define (moved from config/i386/djgpp.h).
        (STANDARD_STARTFILE_PREFIX_1): Define (moved from MD_STARTFILE_PREFIX
        in config/i386/djgpp.h).
        (STANDARD_STARTFILE_PREFIX_2): Define identical to
        STANDARD_STARTFILE_PREFIX_1.
        (LOCAL_INCLUDE_DIR): Define (moved from config/i386/djgpp.h).
        (GCC_DRIVER_HOST_INITIALIZATION): Fix reporting fatal
        installation errors.
        (MAX_OFILE_ALIGNMENT): Define to 128.
        (HAVE_FTW_H): Undefine as DJGPP do not have nftw, but have ftw.h.

        * config/i386/djgpp.c: New file. Add implementation of
        i386_djgpp_asm_named_section.

        * config/i386/djgpp.opt: Remove obsolete option -mbnu210.

        * config/i386/t-djgpp: New file. Add djgpp.o to EXTRA_OBJS.
        Add rule for building djgpp.o.

2016-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (v2df_reduction_p): New function.
        (rtx_is_swappable_p): Reductions are swappable.
        (insn_is_swappable_p): V2DF reductions are swappable.

2016-01-11  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.c (pa_emit_move_sequence): Handle floating point
        reloads for other unsupported memory operands.

2016-01-12  Kugan Vivekanandarajah  <kuganv@linaro.org>
            Jim Wilson  <jim.wilson@linaro.org>

        PR target/69194
        * config/arm/arm-builtins.c (arm_expand_neon_args): Call
        copy_to_mode_reg instead of force_reg.

2016-01-11  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/69225
        * config/i386/i386.h (TARGET_FLT_EVAL_METHOD): Set to 2 only if
        TARGET_80387 is true.

2016-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR target/69071
        * lra-eliminations.c (move_plus_up): Only move plus up
        if subreg of the constant can be simplified into constant
        and use the simplified subreg of the constant instead of
        the original constant.

        * fold-const.c (fold_convertible_p): Don't return true
        for conversion of VECTOR_TYPE to same sized integral type.
        (fold_convert_loc): Fix up formatting.  Fold conversion of
        VECTOR_TYPE to same sized integral type using VIEW_CONVERT_EXPR
        instead of NOP_EXPR.

        PR tree-optimization/69214
        * tree-vrp.c (simplify_cond_using_ranges): Don't propagate
        innerop into a comparison if SSA_NAME_OCCURS_IN_ABNORMAL_PHI.
        Formatting fix.

        PR tree-optimization/69207
        * tree-vect-slp.c (vect_get_constant_vectors): For
        VECTOR_BOOLEAN_TYPE_P, assert op has integral type instead of
        fold_convertible_p to vector_type's element type, and always
        use VCE for non-VECTOR_BOOLEAN_TYPE_P.

2016-01-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69173
        * tree-vect-loop.c (vect_fixup_scalar_cycles_with_patterns): Only
        fixup the cycle if all stmts are in a pattern.

2016-01-11  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/68999
        * alias.c (base_alias_check): Move check for addresses with
        alignment ANDs before the call for compare_base_decls.
        (memrefs_conflict_p): Return -1 for different decls
        that went through alignment adjustments.

2016-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR rtl-optimization/68796
        * config/aarch64/aarch64.md (*and<mode>_compare0): New pattern.
        * config/aarch64/aarch64.c (aarch64_select_cc_mode): Handle HImode
        and QImode comparisons against zero with CC_NZmode.
        * config/aarch64/iterators.md (short_mask): New mode_attr.

2016-01-11  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/sse.md (<avx512>_load<mode>_mask): Remove snprintf.
        (<avx512>_store<mode>_mask): Likewise.

2016-01-11  Bernd Schmidt  <bschmidt@redhat.com>
            Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR rtl-optimization/68841
        * ifcvt.c (struct noce_if_info): Add orig_x field.
        (bbs_ok_for_cmove_arith): Add to_rename parameter.
        Don't record conflicts on to_rename if it's present.
        Allow memory destinations in sets.
        (noce_try_cmove_arith): Call bbs_ok_for_cmove_arith even on simple
        blocks, passing orig_x to the checks.
        (noce_process_if_block): Set if_info->orig_x appropriately.

2016-01-11  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/69069
        * tree-parloops.c (create_parallel_loop): Add missing phi args.

2016-01-11  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR rtl-optimization/68920
        * config/i386/i386.c (ix86_option_override_internal): Restrict number
        of conditional moves for  RTL if-conversion to 1 for
        TARGET_ONE_IF_CONV_INSN.
        * config/i386/i386.h (TARGET_ONE_IF_CONV_INSN): New macros.
        * config/i386/x86-tune.def (X86_TUNE_ONE_IF_CONV_INSN): New macros.
        * params.def (PARAM_MAX_RTL_IF_CONVERSION_INSNS) : Introduce new
        parameter to restirct number of conditional moves for
        RTL if-conversion.
        * doc/invoke.texi (max-rtl-if-conversion-insns): Document it.
        * ifcvt.c (bb_ok_for_noce_convert_multiple_sets): Limit number of
        conditionl moves.

2016-01-11  Alexandre Oliva  <aoliva@redhat.com>

        PR bootstrap/69123
        * var-tracking.c (drop_overlapping_mem_locs): Operate on all
        onepart vars.  Fix typo in comment.  Fix reversed condition in
        unshare test.
        (dataflow_set_remove_mem_locs): Operate on all onepart vars.

        PR bootstrap/69123
        * var-tracking.c (dump_onepart_variable_differences): New.
        (dataflow_set_different): If a detailed dump is requested,
        delay early returns and dump differences between onepart
        variables present before and after, and added variables.

2016-01-11  Ilya Enkovich  <enkovich.gnu@gmail.com>

        PR target/69010
        * expr.c (expand_expr_real_1): For boolean vector constants
        with a scalar mode use const_scalar_mask_from_tree.
        (const_scalar_mask_from_tree): New.
        * optabs.c (expand_vec_cond_mask_expr): Use mask mode
        assigned to a mask type to handle constants.

2016-01-11  Martin Jambor  <mjambor@suse.cz>

        PR ipa/69044
        * ipa-cp.c (estimate_local_effects): Do not clone for removal of
        useless parameters if we cannot change function signature.

2016-01-11  Martin Jambor  <mjambor@suse.cz>

        PR ipa/66616
        * cgraphclones.c (duplicate_thunk_for_node): Copy can_change_signature
        flag.

2016-01-11  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/69109
        * tree-parloops.c (try_transform_to_exit_first_loop_alt): Don't allow
        latch with phi.

2016-01-11  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/69108
        * tree-parloops.c (gather_scalar_reductions): Handle case that outer phi
        res is not used in a phi.

2016-01-11  Yury Gribov  <y.gribov@samsung.com>

        PR 67425
        * common.opt (frandom-seed): Fix parameter name.
        * doc/invoke.texi (frandom-seed): Ditto and describe parameter.

2016-01-11  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/69058
        * tree-parloops.c (pass_parallelize_loops::execute): Return 0 if libgomp
        not supported.

2016-01-11  Andrew Burgess  <andrew.burgess@embecosm.com>

        * config/arc/arc.opt (mdiv-rem): Add period to the end.
        (mcode-density): Likewise.

2016-01-10  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/69062
        * tree-parloops.c (loop_has_phi_with_address_arg): New function.
        (parallelize_loops): Don't paralelize loop that has phi with address
        arg.

2016-01-10  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/69039
        * tree-parloops.c (try_create_reduction_list): Only allow single exit
        phi for reduction.

2016-01-09  John David Anglin  <danglin@gcc.gnu.org>

        PR middle-end/68743
        * match.pd: Require target has function_c99_misc before doing
        truncl(extend(x)) and trunc(extend(x)) -> extend(truncf(x)), etc.

2016-01-09  Gerald Pfeifer  <gerald@pfeifer.com>

        * configure.ac (isl_options_set_schedule_serialize_sccs): Also
        use GMPINC.
        * configure: Regenerate.

2016-01-09  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/50865
        PR tree-optimization/69097
        * fold-const.h (expr_not_equal_to): New prototype.
        * fold-const.c: Include stringpool.h and tree-ssanames.h.
        (expr_not_equal_to): New function.
        * match.pd (X % -Y is the same as X % Y): Don't optimize
        unless X is known not to be equal to minimum or Y is known
        not to be equal to -1.
        * tree-vrp.c (simplify_div_or_mod_using_ranges): Add GSI argument.
        fold TRUNC_MOD_EXPR if the second argument is not a power of two.
        (simplify_stmt_using_ranges): Adjust caller.
        (vrp_finalize): Call set_value_range on SSA_NAMEs before calling
        substitute_and_fold.

2016-01-09  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-icf.c (sem_item_optimizer::merge_classes): Do not ICE on VAR_DECL
        w/o DECL_NAME.

2016-01-08  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/69167
        * gimple-fold.c (replace_stmt_with_simplification): Also punt if
        new SSA_NAME_OCCURS_IN_ABNORMAL_PHI SSA_NAMEs appear in operands of
        ops[0] comparison.
        * gimple-match-head.c (maybe_push_res_to_seq): Likewise.

2016-01-08  Alan Lawrence  <alan.lawrence@arm.com>
            Richard Biener  <rguenther@suse.de>

        PR tree-optimization/68707
        * tree-vect-slp.c (vect_analyze_slp_instance): Cancel permuted SLP
        instances that can be handled via vect_load_lanes.

2016-01-08  Uros Bizjak  <ubizjak@gmail.com>

        * symtab.c (symtab_node::equal_address_to): Return -1 instead of 2
        if we can't determine address equivalence.
        * alias.c (compare_base_decl): Update for changed return value of
        symtab_node::equal_address_to.

2016-01-08  Jason Merrill  <jason@redhat.com>

        PR c++/68983
        PR c++/67557
        * function.c (assign_temp): Guard against TREE_ADDRESSABLE types here.
        * expr.c (store_field): Not here.
        * tree-cfgcleanup.c (fixup_noreturn_call): Don't clear LHS of a
        call with TREE_ADDRESSABLE type.
        * tree-cfg.c (verify_gimple_call): Adjust.

2016-01-08  Olivier Hainque  <hainque@adacore.com>

        * config/vxworks.h (VXWORKS_LIBGCC_SPEC): Don't link shared RTPs with
        libc_internal.

2016-01-08  Alan Lawrence  <alan.lawrence@arm.com>

        * gcc.target/rs6000/paired.md (reduc_smax_v2sf): Rename to...
        (reduc_smax_scal_v2sf): ...here, make result SFmode, extract element.
        (reduc_smin_v2sf): Rename to...
        (reduc_smin_scal_v2sf): ...here, make result SFmode, extract element.
        (reduc_splus_v2sf): Rename to...
        (reduc_plus_scal_v2sf): ...here, make result SFmode, extract element.

2016-01-08  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/69162
        * gimplify.c (gimplify_va_arg_expr): Encode original type of
        valist argument in another argument.
        (gimplify_modify_expr): Adjust for the above change.  Cleanup.
        * tree-stdarg.c (expand_ifn_va_arg_1): Use new 3rd argument
        to determine the va_list type, build a MEM_REF instead of
        build_fold_indirect_ref.

        PR tree-optimization/69172
        * gimple-fold.c (gimple_fold_builtin_memory_chk): Pass type to
        gimple_build.

2016-01-08  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        PR tree-optimization/67781
        * tree-ssa-math-opts.c (find_bswap_or_nop): Zero out bytes in cmpxchg
        and cmpnop in two steps: first the ones not accessed in original
        gimple expression in a endian independent way and then the ones not
        accessed in the final result in an endian-specific way.

2016-01-08  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/69083
        * tree-vect-slp.c (vect_get_constant_vectors): For
        VECTOR_BOOLEAN_TYPE_P assert op is fold_convertible_p to vector_type's
        element type.  If op is fold_convertible_p to vector_type's element
        type, use NOP_EXPR instead of VCE.

2016-01-08  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/67778
        PR rtl-optimization/68634
        PR rtl-optimization/68909
        * shrink-wrap.c (try_shrink_wrapping): Add comment.  Don't pop
        block from the stack until done with it.  Remove a superfluous
        bitmap set.  Remove a superfluous bitmap test.

2016-01-07  Martin Sebor  <msebor@redhat.com>

        PR c/68966
        * doc/extend.texi (__atomic Builtins, __sync Builtins): Document
        constraint on the type of arguments.

2016-01-07  Andreas Tobler  <andreast@gcc.gnu.org>

        * config/arm/freebsd.h: Rename SUBTARGET_OVERRIDE_OPTIONS to
        SUBTARGET_OVERRIDE_INTERNAL_OPTIONS. Adjust to check
        unaligned_access on the gcc_options set.
        * config/arm/arm.c (arm_option_override_internal): Use
        SUBTARGET_OVERRIDE_INTERNAL_OPTIONS.

2016-01-07  Uros Bizjak  <ubizjak@gmail.com>

        PR target/69140
        * config/i386/i386.c (ix86_frame_pointer_required): Enable
        frame pointer for TARGET_64BIT_MS_ABI when stack is misaligned.

2016-01-07  Uros Bizjak  <ubizjak@gmail.com>

        Revert
        2016-01-06  Uros Bizjak  <ubizjak@gmail.com>

        PR target/69140
        * config/i386/i386.c (ix86_expand_prologue): Declare fs.sp_valid
        depending on frame_pointer_needed before remaining integer and SSE
        registers are saved.

2016-01-07  Sandra Loosemore  <sandra@codesourcery.com>

        PR 1078
        * doc/extend.texi (Nvidia PDX Function Attributes): New section.

2016-01-07  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/69171
        * config/i386/sse.md (<sse>_sqrt<mode>2<mask_name><round_name>):
        Use the "xBm" constraint.
        (float<sseintvecmodelower><mode>2<mask_name><round_name):
        Likewise.
        (sse_cvtsi2ss<round_name>): Use round_nimm_scalar_predicate.
        (sse_cvtsi2ssq<round_name>): Likewise.
        (sse_cvtss2si<round_name>): Likewise.
        (sse_cvtss2siq<round_name>): Likewise.
        (sse2_cvtsi2sdq<round_name>): Likewise.
        (sse2_cvtsd2si<round_name>): Likewise.
        (sse2_cvtsd2siq<round_name>): Likewise.
        * config/i386/subst.md (round_nimm_scalar_predicate): New
        predicate.

2015-12-15  Bernd Schmidt  <bschmidt@redhat.com>

        PR middle-end/67639
        * varasm.c (make_decl_rtl): Mark invalid register vars as
        DECL_EXTERNAL.

        PR rtl-optimization/66206
        * bt-load.c (find_btr_use): Change first arg to be a pointer to an rtx.
        All callers changed.

2016-01-07  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/69141
        * tree-ssa-pre.c: Include langhooks.h.
        (eliminate_dom_walker::before_dom_children): Use
        lang_hooks.decl_printable_name instead of
        cgraph_node::get ()->name ().

        PR middle-end/68960
        * gimple-expr.c (copy_var_decl): If var has DECL_USER_ALIGN set, copy
        it and DECL_ALIGN too.

2016-01-06  Robert Suchanek  <robert.suchanek@imgtec.com>

        * config/mips/mips-ftypes.def: Sort to lexicographical order.

2016-01-06  Uros Bizjak  <ubizjak@gmail.com>

        PR target/69140
        * config/i386/i386.c (ix86_expand_prologue): Declare fs.sp_valid
        depending on frame_pointer_needed before remaining integer and SSE
        registers are saved.

2015-01-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * config/rs6000/vsx.md (*p9_vecload_<mode>): Replace VSX_M
        mode iterator with VSX_M2.
        (*p9_vecstore_<mode>): Likewise.
        (*vsx_le_permute_<mode>): Restrict to !TARGET_P9_VECTOR.
        (*vsx_le_perm_load_<mode> for VSX_LE_128): Likewise.
        (*vsx_le_perm_store_<mode> for VSX_LE_128): Likewise.
        (define_split for VSX_LE128 stores): Likewise.
        (define_peephole2 for TImode LE swaps): Likewise.
        (define_split for VSX_LE128 post-reload stores): Likewise.

2016-01-06  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/69099
        * convert.c (convert_to_integer_1): Adjust call to
        ubsan_instrument_float_cast.  Use NULL_TREE instead of NULL.
        * ubsan.c (ubsan_instrument_float_cast): Drop the ARG parameter.  Use
        EXPR instead of ARG.
        * ubsan.h (ubsan_instrument_float_cast): Adjust declaration.

2016-01-05  Sandra Loosemore  <sandra@codesourcery.com>

        PR 1078
        * doc/extend.texi (RL78 Variable Attributes): New section.

2016-01-05  Marek Polacek  <polacek@redhat.com>

        PR c/69104
        * builtins.c (get_memmodel): Use expansion point location rather than
        the input location.  Call warning_at rather than warning.
        (expand_builtin_atomic_compare_exchange): Likewise.
        (expand_builtin_atomic_load): Likewise.
        (expand_builtin_atomic_store): Likewise.
        (expand_builtin_atomic_clear): Likewise.

2016-01-05  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/68991
        * config/i386/i386.c (ix86_expand_vector_logical_operator):
        Replace nonimmediate_operand with vector_operand.
        * config/i386/predicates.md (vector_operand): New predicate.
        (general_vector_operand): Replace nonimmediate_operand with
        vector_operand.
        * config/i386/sse.md: Replace nonimmediate_operand with
        vector_operand and m constraint with Bm constraint on SSE
        patterns with 16-byte memory operand.
        * config/i386/subst.md (round_nimm_predicate): Replace
        nonimmediate_operand with vector_operand.
        (round_saeonly_nimm_predicate): Likewise.
        (round_saeonly_nimm_scalar_predicate): New.

2016-01-05  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/68991
        * config/i386/constraints.md (Bm): New constraint.
        * config/i386/predicates.md (vector_memory_operand): New
        predicate.
        * config/i386/sse.md: Replace xm with xBm in plusminus and
        any_logic patterns.

2016-01-05  Sandra Loosemore  <sandra@codesourcery.com>

        PR 1078
        * doc/extend.texi (V850 Function Attributes): New section.
        (V850 Variable Attributes): New section.

2016-01-05  Sandra Loosemore  <sandra@codesourcery.com>

        PR 1078
        * doc/extend.texi (MicroBlaze Function Attributes): Document
        interrupt_handler and fast_interrupt attributes.

2016-01-05  Sergei Trofimovich  <siarheit@google.com>

        PR other/60465
        * config/ia64/ia64.c (ia64_expand_load_address): Use gprel64
        for local symbolic operands.
        * config/ia64/predicates.md (local_symbolic_operand64): New
        predicate.

2016-01-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR rtl-optimization/68651
        * combine.c (combine_simplify_rtx): Canonicalize x + x into
        x << 1.

2016-01-05  Nathan Sidwell  <nathan@acm.org>

        * alias.c (compare_base_decls): Use symtab_node::get.

2016-01-05  Nick Clifton  <nickc@redhat.com>

        PR target/68770
        * ira-costs.c (copy_cost): Initialise the t_icode field of the
        secondary_reload_info structure.

        PR target/66655
        * config/i386/cygming.h (MAKE_DECL_ONE_ONLY): Define to use weak
        decls if weak support is available.

2016-01-04  Martin Sebor  <msebor@redhat.com>

        * doc/invoke.texi (Warning Options): Document -Winvalid-memory-model.

2016-01-04  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Add
        OPTION_MASK_P9_DFORM.

        * config/rs6000/constraints.md (wo constraint): New constraint for
        ISA 3.0 (power9).

        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Add support
        for wo constraint.
        (rs6000_init_hard_regno_mode_ok): Likewise.

        * config/rs6000/rs6000.h (r6000_reg_class_enum): Add support for
        wo constraint.

        * config/rs6000/altivec.md (altivec_vperm_<mode>): Clean up vperm
        expanders not to have constraints.  Add support for ISA 3.0 xxperm
        instruction.  Add support for fusing xxlor with xxperm.
        (altivec_vperm_<mode>_internal): Likewise.
        (altivec_vperm_v8hiv16qi): Likewise.
        (altivec_vperm_<mode>v16q): Likewise.
        (altivec_vperm_<mode>_uns): Likewise.
        (vperm_v8hiv4si): Likewise.
        (vperm_v16qiv8hi): Likewise.

        * doc/md.texi (RS/6000 constraints): Document wo constraint.

2016-01-04  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.

2016-01-04  Eric Botcazou  <ebotcazou@adacore.com>

        * config/arm/arm.c (aapcs_vfp_allocate_return_reg): Treat all integer
        modes larger than TImode as TImode if NEON is not enabled.

2016-01-04  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/69100
        * config/sparc/sparc.h (FUNCTION_ARG_REGNO_P): Return true in 64-bit
        mode for %f0-%f31 only if TARGET_FPU.

2016-01-04  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/69072
        * config/sparc/sparc.c (scan_record_type): Take into account subfields
        to compute the PACKED_P predicate.
        (function_arg_record_value): Minor tweaks.

2016-01-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * doc/install.texi (--with-multilib-list): Describe the meaning of the
        option for arm*-*-* targets.

2016-01-03  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/extend.texi (Common Function Attributes): Move docs for
        MSP430-specific attributes to....
        (MSP430 Function Attributes): ...here.  Delete the redundant
        entries and copy-edit the remaining text.
        (MSP430 Variable Attributes): Use uniform format for index
        entries and add a cross-reference to the corresponding function
        attribute docs.

2016-01-03  Vladimír Čunát  <vcunat@gmail.com>

        * doc/invoke.texi (RS/6000 and PowerPC Options): Fix
        -finite-math typo.
        (x86 Options): Likewise.

2016-01-01  Sandra Loosemore  <sandra@codesourcery.com>

        PR 1078

        * extend.texi (Common Function Attributes) <no_stack_limit>: New.
        * invoke.texi (Code Gen Options) <-fno-stack-limit>: Add pointer
        to corresponding attribute.

2016-01-01  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/extend.texi (Common Function Attributes) <noplt>: Move
        to correct alphabetization of table.  Copy-edit and correct
        markup.
        <stack_protect>: Likewise.
        <target_clones>: Likewise.
        <simd>: Likewise.
        * doc/invoke.texi (Optimize Options) <-fstack-protector-explicit>:
        Correct punctuation.
        (Code Gen Options) <-fno-plt>: Copy-edit.

2016-01-01  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR target/68917
        * config/tilegx/tilegx.md (clzsi2): Don't create DI subregs of
        SI values.  Explicitly convert SI to DI and vice-versa.

2016-01-01  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/69070
        * tree-ssa-math-opts.c (gimple_expand_builtin_pow): Only test
        REAL_VALUE_ISSIGNALING_NAN on arg0 if arg0 is a REAL_CST.

        PR sanitizer/69055
        * ubsan.c (ubsan_instrument_float_cast): Call
        initialize_sanitizer_builtins.

        PR target/69015
        * ifcvt.c (find_cond_trap): Give up if returnjump_p (jump).
\f
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