2007-02-23 H.J. Lu <hongjiu.lu@intel.com>

[official-gcc.git] / gcc / ChangeLog

2007-02-23  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (bdesc_1arg): Initialize
        IX86_BUILTIN_MOVSHDUP and IX86_BUILTIN_MOVSLDUP with
        "__builtin_ia32_movshdup" and "__builtin_ia32_movsldup".
        (ix86_init_mmx_sse_builtins): Remove IX86_BUILTIN_MOVSHDUP
        and IX86_BUILTIN_MOVSLDUP.

2007-02-22  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/30841
        * fwprop.c (propagate_rtx_1): Accept a VOIDmode replacement address.

2007-02-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_frexp): New.
        (fold_builtin_2): Use it.

2007-02-22  Mark Mitchell  <mark@codesourcery.com>

        * doc/invoke.texi (Spec Files): Document getenv spec function.

        * gcc.c (getenv_spec_function): New function.
        (static_spec_functions): Add it.
        * config/vxworks.h (VXWORKS_TARGET_DIR): Remove.
        (VXWORKS_ADDITIONAL_CPP_SPEC): Use getenv to find the VxWorks
        header files.

2007-02-22  Michael Matz  <matz@suse.de

        PR c++/29433
        * dwarf2out.c (add_AT_string): Call ggc_strdup once per string.
        (type_tag): Use lang_hooks.dwarf_name instead of DECL_NAME.

2007-02-22  Ian Lance Taylor  <iant@google.com>

        PR debug/30898
        * dwarf2out.c (concatn_mem_loc_descriptor): New static function.
        (mem_loc_descriptor): Call it.

2007-02-22  Zdenek Dvorak  <dvorakz@suse.cz>
            Ira Rosen  <irar@il.ibm.com>

        * tree-data-ref.c (ptr_ptr_may_alias_p): Take alias sets into account.

2007-02-22  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/30843
        * tree-vect-transform.c (vect_transform_loop): Remove strided scalar 
        stores only after all the group is vectorized.

2007-02-22  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/30858
        * tree-vectorizer.c (vect_is_simple_reduction): Check that the stmts
        in the reduction cycle have a single use in the loop.
        * tree-vectorizer.h (relevant): Add documentation.

2007-02-20  Mike Stump  <mrs@apple.com>

        * configure.ac (powerpc*-*-darwin*): #include <sys/cdefs.h>.
        * configure: Regenerate.

2007-02-21  Trevor Smigiel  <trevor_smigiel@playstation.sony.com>

        Change the defaults of some parameters and options.
        * config/spu/spu-protos.h (spu_optimization_options): Declare.
        * config/spu/spu.c (spu_optimization_options): Add.
        (spu_override_options): Change params in spu_optimization_options.
        * config/spu/spu.h (OPTIMIZATION_OPTIONS): Define.

        Register 127 is only 16 byte aligned when used as a frame pointer.
        * config/spu/spu-protos.h (spu_init_expanders): Declare.
        * config/spu/spu.c (spu_expand_prologue): Set REGNO_POINTER_ALIGN for
        HARD_FRAME_POINTER_REGNUM.
        (spu_legitimate_address):  Use regno_aligned_for_reload.
        (regno_aligned_for_load):  HARD_FRAME_POINTER_REGNUM is only 16 byte
        aligned when frame_pointer_needed is true.
        (spu_init_expanders): New.  Set alignment of HARD_FRAME_POINTER_REGNUM
        to 8 bits.
        * config/spu/spu.h (INIT_EXPANDERS): Define.

        Make sure shift and rotate instructions have valid immediate operands.
        * config/spu/predicates.md (spu_shift_operand): Remove.
        * config/spu/spu.c (print_operand): Add [efghEFGH] modifiers.
        * config/spu/constraints.md (W, O): Extend range.
        * config/spu/spu.md (umask, nmask): Define.
        (ashl<mode>3, ashldi3, ashlti3_imm, shlqbybi_ti, shlqbi_ti, shlqby_ti,
        lshr<mode>3, rotm_<mode>, lshr<mode>3_imm, rotqmbybi_<mode>,
        rotqmbi_<mode>, rotqmby_<mode>, ashr<mode>3, rotma_<mode>,
        rotl<mode>3, rotlti3, rotqbybi_ti, rotqby_ti, rotqbi_ti): Use
        spu_nonmem_operand instead of spu_shift_operands.  Use new modifiers.
        (lshr<mode>3_reg):  Fix rtl description.

        Make sure mulhisi immediate operands are valid.
        * config/spu/predicates.md (imm_K_operand): Add.
        * config/spu/spu.md (mulhisi3_imm, umulhisi3_imm): Use imm_K_operand.

        Generate constants using fsmbi and andi.
        * config/spu/spu.c (enum immediate_class): Add IC_FSMBI2.
        (print_operand, spu_split_immediate, classify_immediate,
        fsmbi_const_p): Handle IC_FSMBI2.

        Correctly handle a CONST_VECTOR containing symbols.
        * config/spu/spu.c (print_operand): Handle HIGH correctly.
        (spu_split_immediate): Split CONST_VECTORs with -mlarge-mem.
        (immediate_load_p): Allow symbols that use 2 instructions to create.
        (classify_immediate, spu_builtin_splats):  Don't accept a CONST_VECTOR
        with symbols when flag_pic is set.
        (const_vector_immediate_p): New.
        (logical_immediate_p, iohl_immediate_p, arith_immediate_p): Don't
        accept a CONST_VECTOR with symbols.
        (spu_legitimate_constant_p): Use const_vector_immediate_p.  Don't
        accept a CONST_VECTOR with symbols when flag_pic is set.  Handle HIGH
        correctly.
        * config/spu/spu.md (high, low): Delete.
        (low_<mode>): Define.

        Remove INTRmode and INTR_REGNUM, which didn't work.
        * config/spu/spu.c (spu_conditional_register_usage): Remove reference
        of INTR_REGNUM.
        * config/spu/spu-builtins.md (spu_idisable, spu_ienable, set_intr,
        set_intr_pic, set_intr_cc, set_intr_cc_pic, set_intr_return, unnamed
        peephole2 pattern): Don't use INTR or 131.
        (movintrcc): Delete.
        * config/spu/spu.h (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS,
        CALL_USED_REGISTERS, REGISTER_NAMES, INTR_REGNUM): Remove INTR_REGNUM.
        * config/spu/spu.md (UNSPEC_IDISABLE, UNSPEC_IENABLE): Remove.
        (UNSPEC_SET_INTR): Add.
        * config/spu/spu-modes.def (INTR): Remove.

        More accurate warnings about run-time relocations.
        * config/spu/spu.c (reloc_diagnostic): Test in_section.

        Correctly warn about immediate arguments to specific intrinsics.
        * config/spu/spu.c (spu_check_builtin_parm): Handle CONST_VECTORs.
        (spu_expand_builtin_1): Call spu_check_builtin_parm before checking
        the instruction predicate.

        Fix tree check errors with latest update.
        * config/spu/spu.c (expand_builtin_args, spu_expand_builtin_1): Use
        CALL_EXPR_ARG.
        (spu_expand_builtin): Use CALL_EXPR_FN.

        Add missing specific intrinsics.
        * config/spu/spu-builtins.def: Add si_bisled, si_bisledd and
        si_bislede.
        * config/spu/spu_internals.h: Ditto.

        Fix incorrect operand modifiers.
        * config/spu/spu-builtins.md (spu_mpy, spu_mpyu):  Remove use of %H.
        * config/spu/spu.md (xor<mode>3):  Change %S to %J.

        Optimize one case of zero_extend of a vec_select.
        * config/spu/spu.md (_vec_extractv8hi_ze):  Add.

        Accept any immediate for hbr.
        * config/spu/spu.md (hbr):  Change s constraints to i.

2007-02-21  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (thumb2_final_prescan_insn): Don't incrememnt
        condexec_count when skipping USE and CLOBBER.

2007-02-21  Nick Clifton  <nickc@redhat.com>

        * common.opt (Warray-bounds): Add Warning attribute.
        (Wstrict-overflow, Wstrict-overflow=, Wcoverage-mismatch):
        Likewise.
        (fsized-zeroes): Add Optimization attribute.
        (fsplit-wide-types, ftree-scev-cprop): Likewise.
        * c.opt (Wc++0x-compat): Add Warning attribute.

2007-02-21  Ulrich Weigand  <uweigand@de.ibm.com>

        PR middle-end/30761
        * reload1.c (eliminate_regs_in_insn): In the single_set special
        case, attempt to re-recognize the insn before falling back to
        having reload fix it up.

2007-02-20  Eric Christopher  <echristo@gmail.com>

        * config/frv/frv.c (frv_read_argument): Take a tree and int argument.
        Rewrite accordingly.
        (frv_read_iacc_argument): Ditto.
        (frv_expand_set_builtin): Take a call instead of arglist, update for
        above changes.
        (frv_expand_unop_builtin): Ditto.
        (frv_expand_binop_builtin): Ditto.
        (frv_expand_cut_builtin): Ditto.
        (frv_expand_binopimm_builtin): Ditto.
        (frv_expand_voidbinop_builtin): Ditto.
        (frv_expand_int_void2arg): Ditto.
        (frv_expand_prefetches): Ditto.
        (frv_expand_voidtriop_builtin): Ditto.
        (frv_expand_voidaccop_builtin): Ditto.
        (frv_expand_load_builtin): Ditto.
        (frv_expand_store_builtin): Ditto.
        (frv_expand_mdpackh_builtin): Ditto.
        (frv_expand_mclracc_builtin): Ditto.
        (frv_expand_mrdacc_builtin): Ditto.
        (frv_expand_mwtacc_builtin): Ditto.
        (frv_expand_builtin): Remove usage of CALL_EXPR_ARGS, update
        calls for above.

2007-02-20  Janis Johnson  <janis187@us.ibm.com>

        * doc/invoke.texi (RS/6000 and PowerPC Options): Add -mcmpb and -mdfp.
        * configure.ac (HAVE_GAS_CMPB): Check for assembler support of the
        cmpb instruction.
        (HAVE_GAS_DFP): Check for assembler support of decimal floating
        point instructions.
        * configure: Regenerate.
        * config.in: Regenerate.
        * config/rs6000/rs6000.opt (mcmpb, mdfp): New.
        * config/rs6000/rs6000.c (rs6000_override_options): Add CMPB and DFP
        masks to power6 and power6x and to POWERPC_MASKS.
        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
        _ARCH_PWR6.
        * config/rs6000/rs6000.h: Check assembler support for CMPB and DFP.
        * config/rs6000/sysv4.opt (mprototype): Use variable, not mask.
        * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS):
        Access PROTOTYPE as variable, not mask.

2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>

        * rtl.h (remove_reg_equal_equiv_notes): New prototype.
        * rtlanal.c (remove_reg_equal_equiv_notes): New function.
        * combine.c (adjust_for_new_dest): Use it.
        * postreload.c (reload_combine): Likewise.

2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>

        * rtlanal.c (find_reg_equal_equiv_note): Do not find REG_EQ*
        notes on an insn with multiple sets, even if single_set returns
        non-NULL for that insn.

2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (tree_expr_nonnegative_warnv_p): Handle scalb,
        scalbn and scalbln.

2007-02-20  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.h (LINK_SPEC): Default -mmacosx-version-min only
        if user didn't pass it.
        * config/i386/darwin.h (CC1_SPEC): Likewise.
        * config/rs6000/darwin.h (CC1_SPEC): Likewise.
        (DARWIN_MINVERSION_SPEC): Don't depend on user's setting of
        -mmacosx-version-min.

2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
            Uros Bizjak  <ubizjak@gmail.com>

        * optabs.h (enum optab_index): Add new OTI_scalb.
        (scalb_optab): Define corresponding macro.
        * optabs.c (init_optabs): Initialize scalb_optab.
        * genopinit.c (optabs): Implement scalb_optab using scalb?f3
        patterns.
        * builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
        BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
        (expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
        and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
        flag_unsafe_math_optimizations is set.

        * config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
        to implement scalbf, scalb and scalbl built-ins as inline x87
        intrinsics.

2007-02-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
            DJ Delorie <dj@redhat.com>

        PR other/30824
        * diagnostic.c (diagnostic_count_diagnostic): Move -Werror logic to...
        (diagnostic_report_diagnostic): ... here, and turn them into real
        errors. If warnings are inhibited, no need to do anything.

2007-02-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (expm1xf2): Reorder insn sequence for
        better code generation.

2007-02-20  Ben Elliston  <bje@au.ibm.com>

        * config/m68hc11/m68hc11.h (OVERRIDE_OPTIONS): Remove extra ;.

2007-02-20  Kazu Hirata  <kazu@codesourcery.com>

        * config/alpha/alpha.c, config/alpha/alpha.md,
        config/alpha/lib1funcs.asm, config/alpha/vms-crt0-64.c,
        config/alpha/vms-psxcrt0-64.c, config/arc/arc.c,
        config/arc/arc.h, config/arm/arm.c, config/arm/arm.md,
        config/arm/lib1funcs.asm: Follow spelling conventions.

        * config/c4x/c4x.md, config/cris/cris.c, config/crx/crx.c,
        config/fr30/fr30.md, config/i386/i386.h,
        config/iq2000/iq2000.h, config/iq2000/predicates.md,
        config/pa/milli64.S, config/pa/pa.c, config/pa/pa.h,
        config/pa/pa.md, config/pa/pa32-regs.h, config/pa/pa64-regs.h,
        config/pdp11/pdp11.c, config/pdp11/pdp11.h,
        config/rs6000/altivec.md, config/rs6000/rs6000.c,
        config/s390/s390-modes.def, config/sparc/netbsd-elf.h,
        config/sparc/sparc.c, config/sparc/sparc.h,
        config/sparc/sparc.md, config/spu/constraints.md,
        config/spu/spu.c, config/stormy16/stormy16.md: Follow spelling
        conventions.

2007-02-20  Alan Modra  <amodra@bigpond.net.au>

        PR target/29943
        * varasm.c (use_blocks_for_decl_p): Return false for decls with
        alias attribute.

2007-02-19  Kazu Hirata  <kazu@codesourcery.com>

        * doc/invoke.texi (-ftree-lrs): Remove.

2007-02-19  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-pre.c (create_value_expr_from): Initialize POOL to
        NULL.

2007-02-19  Lee Millward  <lee.millward@codesourcery.com>

        * config/ia64/ia64.c (ia64_expand_builtin): Use the
        new CALL_EXPR_FN macro for retrieving the function
        declaration of the input expression.

2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c.opt (Waddress): New.
        * common.opt (Walways-true): Delete.
        (Wstring-literal-comparison): Delete.
        * doc/invoke.texi (Warning Options): Delete -Walways-true and
        -Wstring-literal-comparison. Add -Waddress.
        (Waddress): New.
        (Walways-true): Delete.
        (Wstring-literal-comparison): Delete.
        * doc/extend.texi (#pragma GCC diagnostic): Use -Wformat
        consistently instead of -Walways-true in example.
        * c-opts.c (c_common_handle_option): -Waddress is enabled by -Wall.
        * c-typeck.c (parser_build_binary_op): Replace
        -Wstring-literal-comparison and -Walways-true with -Waddress.
        * c-common.c (c_common_truthvalue_conversion): Replace -Walways-true
        with -Waddress.

2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-cfg.c (dump_function_to_file): Be prepared for functions
        without DECL_STRUCT_FUNCTION initialized.

2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_init_ctor_preeval_1): Detect potential overlap
        due to calls to functions taking pointers as parameters.

2007-02-19  Richard Henderson  <rth@redhat.com>

        PR debug/29558
        * var-tracking.c (track_expr_p): Disallow AGGREGATE_TYPE_P
        in memory.

2007-02-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (s390_call_saved_register_used,
        s390_function_ok_for_sibcall): Adjust the way CALL_EXPR arguments are
        accessed to the new scheme.

2007-02-19  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

        * config/cris/cris.c (cris_movem_load_rest_p, cris_store_multiple_op_p)
        (cris_print_index, cris_print_operand, cris_print_operand_address)
        (cris_reload_address_legitimized, cris_rtx_costs, cris_address_cost)
        (cris_side_effect_mode_ok, cris_valid_pic_const, cris_split_movdx)
        (cris_expand_pic_call_address): Use xxx_P predicate macros instead of
        GET_CODE () == xxx.
        * config/cris/cris.h (SECONDARY_RELOAD_CLASS, EXTRA_CONSTRAINT_Q,
        EXTRA_CONSTRAINT_T, BDAP_INDEX_P, BIAP_INDEX_P, SIMPLE_ADDRESS_P,
        GO_IF_LEGITIMATE_ADDRESS): Ditto.
        * config/cris/cris.md (define_insns: *btst, movdi, *mov_side<mode>)
        (*mov_sidesisf, *mov_side<mode>_mem, *mov_sidesisf_mem)
        (*clear_side<mode>, movsi, *movsi_internal, *ext_sideqihi)
        (*ext_side<mode>si, *op_side<mode>, *op_swap_side<mode>, addsi3)
        (*extopqihi_side, *extop<mode>si_side, *extopqihi_swap_side)
        (*extop<mode>si_swap_side, addi_mul, *addi,andsi3, andhi3, ashl<mode>3)
        (uminsi3, call, call_value): Ditto.
        (define_split: indir_to_reg_split, unnamed): Ditto.

2007-02-19  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/30975
        * tree-vect-trasnform.c (vect_get_vec_def_for_stmt_copy): Remove
        wrong assert.

2007-02-18  Eric Christopher  <echristo@gmail.com>

        * mips.c (mips_prepare_builtin_arg): Add argnum parameter.
        Remove use of arglist.
        (mips_expand_builtin): Remove use of arglist, pass in expr.
        (mips_expand_builtin_direct): Rewrite handling for arglist removal.
        (mips_expand_builtin_movtf): Ditto.
        (mips_expand_builtin_compare): Ditto.

2007-02-19  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (sra_build_assignment): Replace assertion
        checking with a comment explaining why it can't be done.

2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>

        PR middle-end/30833
        * tree-dump.c (dequeue_and_dump): Add tcc_vl_exp case missed
        during CALL_EXPR representation conversion.
        * tree-ssa-propagate.c (set_rhs): Likewise.

2007-02-19  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (sra_build_assignment): Disable assertion checking
        for now.

2007-02-18  Roger Sayle  <roger@eyesopen.com>

        * function.c (gimplify_parameters): Call build_gimple_modify_stmt
        instead of calling build2 with a GIMPLE_MODIFY_STMT.
        * gimple-low.c (lower_function_body, lower_builtin_setjmp):
        Likewise.
        * gimplify.c (build_stack_save_restore, gimplify_return_expr,
        gimplify_decl_expr,  gimplify_self_mod_expr, gimplify_cond_expr,
        gimplify_init_ctor_eval_range, gimple_push_cleanup,
        gimplify_omp_for, gimplify_omp_atomic_pipeline,
        gimplify_omp_atomic_mutex, gimplify_expr, gimplify_one_sizepos,
        force_gimple_operand): Likewise.
        * ipa-cp.c (constant_val_insert): Likewise.
        * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
        lambda_loopnest_to_gcc_loopnest, replace_uses_equiv_to_x_with_y,
        perfect_nestify): Likewise.
        * langhooks.c (lhd_omp_assignment): Likewise.
        * omp-low.c (lower_rec_input_clauses, lower_reduction_clauses,
        lower_copyprivate_clauses, lower_send_clauses,
        lower_send_shared_vars, expand_parallel_call,
        expand_omp_for_generic, expand_omp_for_static_nochunk,
        expand_omp_for_static_chunk, expand_omp_sections,
        lower_omp_single_copy, lower_omp_for_lastprivate,
        lower_omp_parallel, init_tmp_var, save_tmp_var): Likewise.
        * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
        tree_mod_subtract, tree_ic, tree_stringop_fixed_value):
        Likewise.

2007-02-19  Kazu Hirata  <kazu@codesourcery.com>

        * config/sh/divtab.c, config/sh/sh.c, config/sh/sh.h,
        config/sh/sh.md: Follow spelling conventions.

        * config/frv/frv.c, config/frv/frv.h, config/frv/frv.md,
        config/frv/predicates.md: Follow spelling conventions.

        * config/m68k/linux-unwind.h: Fix a comment typo.
        * target.h: Follow spelling conventions.

2007-02-18  Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/28173
        * simplify-rtx.c (simplify_binary_operation_1) <IOR>:  Optimize
        (X & C1) | C2 as C2 when (C1 & C2) == C1 and X has no side-effects.
        Optimize (X & C1) | C2 as X | C2 when (C1 | C2) == ~0.
        Canonicalize (X & C1) | C2 as (X & (C1 & ~C2)) | C2.
        <AND>: Canonicalize (X | C1) & C2 as (X & C2) | (C1 & C2).

2007-02-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_load_exponent): New.
        (fold_builtin_2): Use it.

2007-02-18  Steven Bosscher  <steven@gcc.gnu.org>

        PR rtl-optimization/30773
        * local-alloc.c (update_equiv_regs): Do not set reg_equiv_init
        if we fail to attach a REG_EQUIV note.

2007-02-18  David Edelsohn  <edelsohn@gnu.org>
            Roger Sayle  <roger@eyesopen.com>

        * config/rs6000/rs6000.md (bswapsi2): New define_insn and splitter.

2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>

        * calls.c (initialize_argument_information): Pass original EXP
        and STRUCT_VALUE_ADDR_VALUE instead of a list of arguments.  Move
        code to split complex arguments here, as part of initializing the
        ARGS array.
        (expand_call): Remove code that builds a list of arguments and
        inserts implicit arguments into it.  Instead, just count how many
        implicit arguments there will be so we can determine the size of
        the ARGS array, and let initialize_argument_information do the work.
        (split_complex_values): Delete unused function.

2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-eh.c (tree_could_trap_p): Handle VIEW_CONVERT_EXPR.

2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>

        * calls.c (mem_overlaps_already_clobbered_arg_p): Return true
        for arg pointer based indexed addressing.

2007-02-18  Kazu Hirata  <kazu@codesourcery.com>

        * config/ia64/ia64.h, config/ia64/ia64.md,
        config/ia64/predicates.md, config/ia64/sysv4.h: Follow
        spelling conventions.

2007-02-18  Roman Zippel <zippel@linux-m68k.org>

        * config/m68k/m68k.c (split_di): New.
        * config/m68k/m68k-protos.h: Declare split_di.
        * config/m68k/m68k.md (extendsidi2*,ashldi3*,ashrdi3*,lshrdi3*):
          Improve predicate handling and split constant shifts.

2007-02-18  Roman Zippel <zippel@linux-m68k.org>

        * config/m68k/m68k.md (extv,extzv,insv): disable dynamic
        parameter for register bitfield operations, general predicates
        cleanup

2007-02-18  Roman Zippel <zippel@linux-m68k.org>

        * config/m68k/linux.h (MD_UNWIND_SUPPORT): Define.
        * config/m68k/linux-unwind.h: New file.

2007-02-18  Kazu Hirata  <kazu@codesourcery.com>

        * cfgloop.c, config/alpha/alpha.c, config/bfin/bfin.c,
        config/i386/athlon.md, config/ia64/ia64.md,
        config/rs6000/rs6000.c, config/s390/s390.c, config/spu/spu.md,
        df-problems.c, df.h, fold-const.c, ipa-cp.c, ipa-inline.c,
        ipa-prop.h, see.c, struct-equiv.c, tree-inline.c,
        tree-ssa-loop-niter.c, tree-vect-analyze.c,
        tree-vect-transform.c: Fix comment typos.

2007-02-17  Kazu Hirata  <kazu@codesourcery.com>

        * sched-deps.c (find_insn_list): Remove.
        * sched-int.h: Remove the prototype for find_insn_list.

2007-02-16  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.h (LINK_SPEC): Always pass -macosx_version_min
        to linker.
        (DARWIN_EXTRA_SPECS): Add %(darwin_minversion).
        * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Just call
        darwin_rs6000_override_options.
        (C_COMMON_OVERRIDE_OPTIONS): Expect
        darwin_macosx_version_min to be non-NULL always.
        (TARGET_C99_FUNCTIONS): Likewise.
        (CC1_SPEC): Always pass -mmacosx-version-min to cc1*.
        (DARWIN_MINVERSION_SPEC): New.
        * config/rs6000/rs6000.c (darwin_rs6000_override_options): New.
        * config/i386/darwin.h (CC1_SPEC): Always pass -mmacosx-version-min
        to cc1*.
        (DARWIN_MINVERSION_SPEC): New.
        * config/darwin.opt (mmacosx-version-min): Initialize to non-NULL
        value.
        * config/darwin-c.c (darwin_cpp_builtins): Expect
        darwin_macosx_version_min to be non-NULL always.

        * config/rs6000/rs6000.c: Clean up trailing whitespace.

2007-02-16  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (x86_use_xchgb): New.
        (TARGET_USE_XCHGB): New macro.
        * config/i386/i386.c (x86_use_xchgb): Set for PENT4.
        * config/i386/i386.md (*rotlhi3_1 splitter, *rotrhi3_1 splitter):
        Split after reload into bswaphi for shifts of 8.
        (bswaphi_lowpart): Generate rolw insn for HImode byte swaps.
        (*bswaphi_lowpart_1): Generate xchgb for Q registers for TARGET_XCHGB
        or when optimizing for size.

2007-02-16  Richard Guenther  <rguenther@suse.de>
            Christian Bruel  <christian.bruel@st.com>

        * fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like
        DECLs but prefer SSA_NAMEs over DECLs.

2007-02-16  Richard Guenther  <rguenther@suse.de>

        * tree-flow-inline.h (single_imm_use_p): Remove.
        (zero_imm_uses_p): Likewise.
        * tree-ssa-coalesce.c (create_outofssa_var_map): Use has_single_use
        instead of single_imm_use_p.
        * tree-cfg.c (replace_uses_by): Use has_zero_use instead of
        zero_imm_uses_p.

2007-02-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR other/27843
        * Makefile.in (SYSTEM_HEADER_DIR): Use single quotes to avoid
        nested double- and backquotes.

2007-02-15  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/30391
        * tree.c (expr_align): Handle MODIFY_EXPR.  GIMPLE_MODIFY_STMT
        should be unreachable.
        (build2_stat): Allow construction of MODIFY_EXPR at any time.
        For the time being redirect GIMPLE_MODIFY_STMT to the new
        (renamed) build_gimple_modify_stmt_stat.
        (build2_gimple_stat): Rename to...
        (build_gimple_modify_stmt_stat): Now longer take a CODE argument.
        Always build a GIMPLE_MODIFY_STMT node.
        * tree.h (build2_gimple, build2_gimple_stat): Delete.
        (build_gimple_modify_stmt, build_gimple_modify_stmt_stat): New
        declarations.

        * tree-cfg.c (factor_computed_gotos, tree_merge_blocks,
        gimplify_val): Use build_gimple_modify_stmt instead of build2_gimple.
        * tree-complex.c (set_component_ssa_name, expand_complex_move,
        expand_complex_div_wide): Likewise.
        * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
        * tree-ssa-loop-im.c (schedule_sm): Likewise.
        * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Likewise.
        * tree-ssa-loop-manip.c (create_iv): Likewise.
        * tree-ssa-phiopt.c (conditional_replacement, minmax_replacement,
        abs_replacement): Likewise.
        * tree-ssa-pre.c (create_expression_by_pieces, poolify_modify_stmt,
        realify_fake_stores): Likewise.

        * builtins.c (std_expand_builtin_va_start): Build a MODIFY_EXPR
        node rather than a GIMPLE_MODIFY_STMT node.
        (std_gimpify_va_arg_expr, expand_builtin_va_copy,
        fold_builtin_memset, fold_builtin_memory_op, do_mpfr_sincos):
        Likewise.
        (integer_valued_real_p): Handle MODIFY_EXPR, not GIMPLE_MODIFY_STMT.
        * expr.c (expand_expr_real_1): Handle both MODIFY_EXPR and
        GIMPLE_MODIFY_STMT.

2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30433
        * fold-const.c (fold_comparison): Add back the
        folding of constant complex comparisions.

2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30729
        * stmt.c (warn_if_unused_value): VA_ARG_EXPR has side
        effects unknown to this function, return early.

2007-02-15  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (move_eh_region_note): New static function.
        (resolve_simple_move): Call it.
        (decompose_multiword_subregs): Track blocks for which we resolve a
        simple move which is also a control flow insn.  Pass them to
        find_many_sub_basic_blocks.
        (pass_lower_subreg): Add TODO_verify_flow.
        (pass_lower_subreg2): Likewise.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * tree.h (enum tree_code_class): Add tcc_vl_exp.
        (VL_EXP_CLASS_P): New.
        (TREE_OPERAND_CHECK): Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.
        (TREE_OPERAND_CHECK_CODE): Likewise.
        (GIMPLE_STMT_OPERAND_CHECK): Likewise.
        (TREE_RTL_OPERAND_CHECK): Likewise.
        (tree_operand_check_failed): Make second parameter the whole tree
        instead of its code.  Fixed callers.
        (VL_EXP_CHECK): New.
        (TREE_OPERAND_LENGTH): New.
        (VL_EXP_OPERAND_LENGTH): New.
        (CALL_EXPR_FN): New.
        (CALL_EXPR_STATIC_CHAIN): New.
        (CALL_EXPR_ARGS): New.
        (CALL_EXPR_ARG): New.
        (call_expr_nargs): New.
        (CALL_EXPR_ARGP): New.
        (build_nt_call_list): Declare.
        (build_vl_exp_stat): Declare.
        (build_vl_exp): New.
        (build_call_list): Declare.
        (build_call_nary): Declare.
        (build_call_valist): Declare.
        (build_call_array): Declare.
        (call_expr_arg): Declare.
        (call_expr_argp): Declare.
        (call_expr_arglist): Declare.
        (fold_build_call_list): Declare.
        (fold_build_call_list_initializer): Declare.
        (fold_call_expr): Declare to replace fold_builtin.
        (fold_builtin_fputs): Update to agree with modified definition.
        (fold_builtin_strcpy): Likewise.
        (fold_builtin_strncpy): Likewise.
        (fold_builtin_memory_chk): Likewise.
        (fold_builtin_stxcpy_chk): Likewise.
        (fold_builtin_strncpy_chk): Likewise.
        (fold_builtin_next_arg): Likewise.
        (fold_build_call_expr): Declare.
        (fold_builtin_call_list): Declare.
        (fold_builtin_call_valist): Declare.
        (build_call_expr): Declare.
        (validate_arglist): Update to agree with modified definition.
        (tree_operand_length): New.
        (call_expr_arg_iterator): New.
        (init_call_expr_arg_iterator): New.
        (next_call_expr_arg): New.
        (first_call_expr_arg): New.
        (more_call_expr_args_p): New.
        (FOR_EACH_CALL_EXPR_ARG): New.

        * tree.c (tree_code_class_string): Add entries for tcc_vl_exp
        and tcc_gimple_stmt.
        (tree_code_size): Update documentation.  Use sizeof (tree) rather
        than sizeof (char *).
        (tree_size): Likewise.  Add case for tcc_vl_exp.
        (tree_node_structure): Add case for tcc_vl_exp.
        (contains_placeholder_p): Likewise.
        (substitute_in_expr): Likewise.
        (substitute_placeholder_in_expr): Likewise.
        (stabilize_reference_1): Likewise.
        (build3_stat): Remove logic for CALL_EXPRs.  Replace with assertion
        to diagnose breakage of this interface for constructing CALL_EXPRs.
        (build_nt): Add similar assertion here.
        (build_nt_call_list): New.
        (simple_cst_equal) <CALL_EXPR>: Rewrite to use new accessors.
        (iterative_hash_expr): Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.
        (get_callee_fndecl): Use new CALL_EXPR accessors.
        (tree_operand_check_failed): Change parameters to pass entire node
        instead of its code, so that we can call TREE_OPERAND_LENGTH on it.
        (process_call_operands): New.
        (build_vl_exp_stat): New.
        (build_call_list): New.
        (build_call_nary): New.
        (build_call_valist): New.
        (build_call_array): New.
        (walk_tree): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (call_expr_arglist): New.

        * tree.def (CALL_EXPR): Change representation of CALL_EXPRs to use
        tcc_vl_exp instead of a fixed-size tcc_expression.

        * doc/c-tree.texi (CALL_EXPR): Document new representation and
        accessors for CALL_EXPRs.
        (AGGR_INIT_EXPR): Likewise.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * builtins.c (c_strlen): Return NULL_TREE instead of 0.
        (expand_builtin_nonlocal_goto): Change parameter to be entire
        CALL_EXPR instead of an arglist.  Use new CALL_EXPR accessors.
        (expand_builtin_prefetch): Likewise.
        (expand_builtin_classify_type): Likewise.
        (mathfn_built_in): Return NULL_TREE instead of 0.
        (expand_errno_check): Use new CALL_EXPR accessors.
        (expand_builtin_mathfn): Use new CALL_EXPR accessors and constructors.
        Return NULL_RTX instead of 0.
        (expand_builtin_mathfn_2): Likewise.
        (expand_builtin_mathfn_3): Likewise.
        (expand_builtin_interclass_mathfn): Likewise.
        (expand_builtin_sincos): Likewise.
        (expand_builtin_cexpi): Likewise.
        (expand_builtin_int_roundingfn): Likewise.
        (expand_builtin_int_roundingfn_2): Likewise.
        (expand_builtin_pow): Likewise.
        (expand_builtin_powi): Likewise.
        (expand_builtin_strlen): Pass entire CALL_EXPR as parameter instead
        of arglist, fixing callers appropriately.  Use new CALL_EXPR
        accessors and constructors.  Return NULL_RTX instead of 0.
        (expand_builtin_strstr): Likewise.
        (expand_builtin_strchr): Likewise.
        (expand_builtin_strrchr): Likewise.
        (expand_builtin_strpbrk): Likewise.
        (expand_builtin_memcpy): Likewise.
        (expand_builtin_mempcpy): Likewise.
        (expand_builtin_mempcpy_args): New.
        (expand_builtin_memmove): Similarly to expand_builtin_mempcpy.
        (expand_builtin_memmove_args): New.
        (expand_builtin_bcopy): Similarly to expand_builtin_mempcpy.
        (expand_movstr): Likewise.
        (expand_builtin_strcpy): Likewise.
        (expand_builtin_strcpy_args): New.
        (expand_builtin_stpcpy): Similarly to expand_builtin_strcpy.
        (expand_builtin_strncpy): Likewise.
        (expand_builtin_memset): Likewise.
        (expand_builtin_memset_args): New.
        (expand_builtin_bzero): Similarly to expand_builtin_memset.
        (expand_builtin_memcmp): Likewise.
        (expand_builtin_strcmp): Likewise.
        (expand_builtin_strncmp): Likewise.
        (expand_builtin_strcat): Likewise.
        (expand_builtin_strncat): Likewise.
        (expand_builtin_strspn): Likewise.
        (expand_builtin_strcspn): Likewise.
        (expand_builtin_args_info): Likewise.
        (expand_builtin_va_start): Likewise.
        (gimplify_va_arg_expr): Likewise.
        (expand_builtin_va_end): Likewise.
        (expand_builtin_va_copy): Likewise.
        (expand_builtin_frame_address): Likewise.
        (expand_builtin_alloca): Likewise.
        (expand_builtin_bswap): Likewise.
        (expand_builtin_unop): Likewise.
        (expand_builtin_fputs): Likewise.
        (expand_builtin_expect): Likewise.
        (expand_builtin_fabs): Likewise.
        (expand_builtin_copysign): Likewise.
        (expand_builtin_printf): Likewise.
        (expand_builtin_fprintf): Likewise.
        (expand_builtin_sprintf): Likewise.
        (expand_builtin_init_trampoline): Likewise.
        (expand_builtin_signbit): Likewise.
        (expand_builtin_fork_or_exec): Likewise.
        (expand_builtin_sync_operation): Likewise.
        (expand_builtin_compare_and_swap): Likewise.
        (expand_builtin_lock_test_and_set): Likewise.
        (expand_builtin_lock_release): Likewise.
        (expand_builtin): Likewise.
        (builtin_mathfn_code): Likewise.

        (fold_builtin_constant_p): Pass call arguments individually instead
        of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
        accessors and constructors.  Return NULL_TREE instead of 0.
        (fold_builtin_expect): Likewise.
        (fold_builtin_classify_type): Likewise.
        (fold_builtin_strlen): Likewise.
        (fold_builtin_nan): Likewise.
        (integer_valued_real_p): Likewise.
        (fold_trunc_transparent_mathfn): Likewise.
        (fold_fixed_mathfn): Likewise.
        (fold_builtin_cabs): Likewise.
        (fold_builtin_sqrt): Likewise.
        (fold_builtin_cbrt): Likewise.
        (fold_builtin_cos): Likewise.
        (fold_builtin_cosh): Likewise.
        (fold_builtin_tan): Likewise.
        (fold_builtin_sincos): Likewise.
        (fold_builtin_cexp): Likewise.
        (fold_builtin_trunc): Likewise.
        (fold_builtin_floor): Likewise.
        (fold_builtin_ceil): Likewise.
        (fold_builtin_round): Likewise.
        (fold_builtin_int_roundingfn): Likewise.
        (fold_builtin_bitop): Likewise.
        (fold_builtin_bswap): Likewise.
        (fold_builtin_logarithm): Likewise.
        (fold_builtin_hypot): Likewise.
        (fold_builtin_pow): Likewise.
        (fold_builtin_powi): Likewise.
        (fold_builtin_exponent): Likewise.
        (fold_builtin_memset): Likewise.
        (fold_builtin_bzero): Likewise.
        (fold_builtin_memory_op): Likewise.
        (fold_builtin_bcopy): Deleted; call site changed to invoke
        fold_builtin_memory_op directly.
        (fold_builtin_strcpy): Similarly as for fold_builtin_memory_op.
        (fold_builtin_strncpy): Likewise.
        (fold_builtin_memcmp): Likewise.
        (fold_builtin_strcmp): Likewise.
        (fold_builtin_strncmp): Likewise.
        (fold_builtin_signbit): Likewise.
        (fold_builtin_copysign): Likewise.
        (fold_builtin_isascii): Likewise.
        (fold_builtin_toascii): Likewise.
        (fold_builtin_isdigit): Likewise.
        (fold_builtin_fabs): Likewise.
        (fold_builtin_abs): Likewise.
        (fold_builtin_fmin_fmax): Likewise.
        (fold_builtin_carg): Likewise.
        (fold_builtin_classify): Likewise.
        (fold_builtin_unordered_cmp): Likewise.

        (fold_builtin_0, fold_builtin_2, fold_builtin_3, fold_builtin_4):
        New functions split out from fold_builtin_1.
        (fold_builtin_n): New.
        (fold_builtin_varargs): New.
        (fold_builtin): Deleted.  Most callers changed to use fold_call_expr
        instead.
        (fold_call_expr): New.
        (build_function_call_expr): Rewrite to use new helper function.
        (fold_builtin_call_list): New.
        (build_call_expr): New.
        (fold_builtin_call_valist): New.
        (rewrite_call_expr): New.
        (validate_arg): New.
        (validate_arglist): Change parameter to be entire CALL_EXPR instead
        of an arglist.  Change return type to bool.  Use new CALL_EXPR
        accessors.

        (fold_builtin_strstr):  Pass call arguments individually instead
        of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
        accessors and constructors.  Return NULL_TREE instead of 0.
        (fold_builtin_strchr): Likewise.
        (fold_builtin_strrchr): Likewise.
        (fold_builtin_strpbrk): Likewise.
        (fold_builtin_strcat): Likewise.
        (fold_builtin_strncat): Likewise.
        (fold_builtin_strspn): Likewise.
        (fold_builtin_strcspn): Likewise.
        (fold_builtin_fputs): Likewise.
        (fold_builtin_next_arg): Likewise.
        (fold_builtin_sprintf): Likewise.

        (expand_builtin_object_size): Use new CALL_EXPR accessors.  Use
        NULL_RTX instead of 0.
        (expand_builtin_memory_chk): Likewise.
        (maybe_emit_chk_warning): Likewise.
        (maybe_emit_sprintf_chk_warning): Likewise.

        (fold_builtin_object_size): Pass call arguments individually instead
        of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
        accessors and constructors.  Return NULL_TREE instead of 0.
        (fold_builtin_memory_chk): Likewise.
        (fold_builtin_stxcpy_chk): Likewise.
        (fold_builtin_strncpy_chk): Likewise.
        (fold_builtin_strcat_chk): Likewise.
        (fold_builtin_strcat_chk): Likewise.
        (fold_builtin_strncat_chk): Likewise.
        (fold_builtin_sprintf_chk): Likewise.
        (fold_builtin_snprintf_chk): Likewise.
        (fold_builtin_printf): Likewise.
        (fold_builtin_vprintf): Likewise.

        * fold-const.c (negate_expr_p): Use new CALL_EXPR accessors and
        constructors.
        (operand_equal_p): Add separate tcc_vl_exp/CALL_EXPR case.
        (make_range): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (extract_muldiv_1): Add VL_EXP_CLASS_P case.
        (fold_mathfn_compare): Use new CALL_EXPR accessors and constructors.
        (fold_unary): Likewise.
        (fold_binary): Likewise.
        (fold_ternary): Remove CALL_EXPR case, since they are no longer
        ternary expressions.
        (fold): Add logic for tcc_vl_exp.
        (fold_checksum_tree):  Make it know about tcc_vl_exp.  Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (fold_build3_stat): Add assertion to flag broken interface for
        constructing CALL_EXPRs.
        (fold_build_call_list): New.
        (fold_build_call_list_initializer): New.
        (tree_expr_nonnegative_p): Use new CALL_EXPR accessors and
        constructors.
        (fold_strip_sign_ops): Likewise.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * tree-dump.c (dequeue_and_dump) <CALL_EXPR>: Use new CALL_EXPR
        accessors and dump arguments explicitly.

        * tree-pretty-print.c (do_niy): Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.
        (dump_generic_node): Use new CALL_EXPR accessors and walk arguments
        explicitly.
        (print_call_name): Use new CALL_EXPR accessors.

        * print-tree.c (print_node): Add case tcc_vl_exp.  Print
        CALL_EXPR arguments explicitly instead of as a list.  Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.

        * tree-vrp.c (stmt_interesting_for_vrp): Use new CALL_EXPR accessors.
        (vrp_visit_stmt): Likewise.

        * tree-ssa-loop-im.c (outermost_invariant_loop_expr):  Make it
        know about tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.
        (force_move_till_expr): Likewise.

        * targhooks.c (default_external_stack_protect_fail): Use
        build_call_expr instead of build_function_call_expr.
        (default_hidden_stack_protect_fail): Likewise.

        * tree-complex.c (expand_complex_libcall): Use build_call_expr to
        build the call.

        * cgraphbuild.c (build_cgraph_edges): Use new CALL_EXPR accessors
        and walk arguments explicitly.

        * tree-ssa-loop-niter.c (simplify_replace_tree): Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (expand_simple_operations): Likewise.
        (infer_loop_bounds_from_array): Use new CALL_EXPR accessors.

        * gengtype.c (adjust_field_tree_exp): Use TREE_OPERAND_LENGTH instead
        of TREE_CODE_LENGTH.
        (walk_type): Tweak walking of arrays not to blow up on CALL_EXPRs.

        * optabs.c (expand_widen_pattern-expr): Use TREE_OPERAND_LENGTH
        instead of TREE_CODE_LENGTH.

        * value_prof.c (tree_ic): Use new CALL_EXPR accessors.
        (tree_ic_transform): Likewise.
        (interesting_stringop_to_profile_p): Pass entire CALL_EXPR as
        parameter instead of arglist.  Fix callers.
        (tree_stringop_fixed_value): Use new CALL_EXPR accessors.
        (tree_stringops_transform): Likewise.
        (tree_indirect_call_to_profile): Likewise.
        (tree_stringops_values_to_profile): Likewise.

        * tree-tailcall.c (find_tail_calls): Use new CALL_EXPR iterator.
        (eliminate_tail_call): Likewise.

        * ipa-cp.c (ipcp_update_callgraph): Use new CALL_EXPR accessors.

        * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
        Use TREE_OPERAND_LENGTH and generalize to handle any number of
        operands.
        (instantiate_parameters_1): Can't handle tcc_vl_exp here.

        * omp-low.c (build_omp_barrier): Use build_call_expr.
        (lower_rec_input_clauses): Likewise.
        (lower_reduction_clauses): Likewise.
        (expand_parallel_call): Likewise.
        (maybe_catch_exception): Likewise.
        (expand_omp_for_generic): Likewise.
        (expand_omp_for_static_nochunk): Likewise.
        (expand_omp_sections): Likewise.
        (lower_omp_single_simple): Likewise.
        (lower_omp_single_copy): Likewise.
        (lower_omp_master): Likewise.
        (lower_omp_ordered): Likewise.
        (lower_omp_critical): Likewise.

        * ipa-reference.c (check-call): Use new CALL_EXPR iterator.
        (scan_for_static_refs): Create tcc_vl_exp case for CALL_EXPR.

        * tree-gimple.c (is_gimple_call_addr): Fix doc.
        (recalculate_side_effects): Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.  Add tcc_vl_exp case.

        * tree-chrec.c (chrec_contains_symbols): Use TREE_OPERAND_LENGTH
        and generalize to handle any number of operands.
        (chrec_contains_undetermined): Likewise.
        (tree_contains_chrecs): Likewise.
        (evolution_function_is_invariant_rec_p): Use TREE_OPERAND_LENGTH.

        * cgraphunit.c (update_call_expr): Use new CALL_EXPR accessors.

        * tree-ssa-ccp.c (ccp_fold): Use new CALL_EXPR accessors.  Use
        fold_call_expr instead of fold_builtin.
        (ccp_fold_builtin): Likewise.  Update calls into builtins.c to
        match declarations there.
        (fold_stmt): Use new CALL_EXPR constructor and accessors.  Doc
        updates.

        * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.

        * ipa-pure-const.c (check_call): Use new CALL_EXPR accessors.
        (scan_function): Add case tcc_vl_exp for CALL_EXPR.

        * tree-stdarg.c (execute_optimize_stdarg): Use new CALL_EXPR
        accessors.

        * tree-ssa-math-opts.c (execute_cse_sincos_1): Use build_call_expr.
        (execute_cse_sincos): Use new CALL_EXPR accessors.

        * tree-ssa-alias.c (find_used_portions): Use new CALL_EXPR iterator.

        * gimple-low.c (lower_function_body): Use build_call_expr.
        (lower_builtin_setjmp): Likewise.

        * expr.c (emit_block_move_via_libcall): Use build_call_expr.
        (set_storage_via_libcall): Likewise.
        (safe_from_p): Add tcc_vl_exp case.  Use TREE_OPERAND_LENGTH
        instead of TREE_CODE_LENGTH.
        (expand_expr_real_1): Use new CALL_EXPR accessors.

        * tree-browser.c (store_child_info): Use TREE_OPERAND_LENGTH and
        generalize to handle any number of operands.
        (TB_parent_eq): Likewise.

        * predict.c (expr_expected_value): Use new CALL_EXPR accessors.
        (strip_builtin_expect): Likewise.

        * function.c (gimplify_parameters): Use build_call_expr.

        * tree-vectorizer.c (vect_is_simple_reduction): Use TREE_OPERAND_LENGTH
        instead of TREE_CODE_LENGTH.

        * ipa-type-escape.c (check_call): Use new CALL_EXPR iterators.
        (scan_for_refs): Add case tcc_vl_exp for CALL_EXPR.

        * tree-data-ref.c (get_references_in_stmt): Use new CALL_EXPR
        iterators.

        * gimplify.c (build_stack_save_restore): Use build_call_expr.
        (gimplify_decl_expr): Likewise.
        (gimplify_call_expr): Use fold_call_expr instead of fold_builtin.
        Use new CALL_EXPR iterators.
        (gimplify_modify_expr_to_memcpy): Use build_call_expr.
        (gimplify_modify_expr_to_memset): Likewise.
        (gimplify_variable_sized_compare): Likewise.
        (gimplify_omp_atomic_fetch_op): Likewise.
        (gimplify_omp_atomic_pipeline): Likewise.
        (gimplify_omp_atomic_mutex): Likewise.
        (gimplify_function_tree): Likewise.

        * calls.c (alloca_call_p): Use new CALL_EXPR accessors.
        (call_expr_flags): Likewise.
        (expand_call): Likewise.

        * except.c (expand_builtin_eh_return_data_regno): Pass entire
        CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
        accessors.

        * coverage.c (create_coverage): Use build_call_expr.

        * tree-ssa-pre.c (expression_node_pool, list_node_pool): Delete.
        (temp_call_expr_obstack): New.
        (pool_copy_list): Delete.
        (temp_copy_call_expr): New.
        (phi_translate): Add case tcc_vl_exp for CALL_EXPR.  Use new
        CALL_EXPR accessors.  Get rid of special goo for copying argument
        lists and use temp_copy_call_expr instead.
        (valid_in_sets): Add case tcc_vl_exp for CALL_EXPR.  Use new
        CALL_EXPR accessors.
        (create_expression_by_pieces): Likewise.  Use build_call_array
        to construct the result instead of fold_build3.
        (create_value_expr_from): Add tcc_vl_exp.  Delete special goo for
        dealing with argument lists.
        (init_pre): Remove references to expression_node_pool and
        list_node_pool.  Init temp_call_expr_obstack instead.
        (fini_pre): Remove references to expression_node_pool and
        list_node_pool.

        * tree-sra.c (sra_walk_call_expr): Use new CALL_EXPR accessors
        and walk arguments explicitly instead of as a list.

        * tree-mudflap.c (mf_build_check_statement_for): Use build_call_expr.
        (mx_register_decls): Likewise.
        (mudflap_register_call): Likewise.
        (mudflap_finish_file): Likewise.

        * ipa-prop.c (ipa_callsite_compute_count): Use new CALL_EXPR accessors.
        (ipa_callsite_compute_param): Likewise.

        * tree-vect-patterns.c (vect_recog_pow_pattern): Use new CALL_EXPR
        accessors and constructor.

        * tree-nested.c (convert_nl_goto_reference): Use new CALL_EXPR
        accessors and constructor.
        (convert_tramp_reference): Likewise.
        (convert_call_expr): Likewise.
        (finalize_nesting_tree_1): Likewise.

        * tree-ssa.c (tree_ssa_useless_type_conversion): Use new CALL_EXPR
        accessors.

        * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Use build_call_expr.

        * tree-inline.c (initialize_inlined_parameters): Pass entire
        CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
        accessors.
        (estimate_num_insns_1): Use new CALL_EXPR accessors.
        (expand_call_inline): Tidy up call to initialize_inlined_parameters.

        * tree-vect-transform.c (vect_create_epilog_for_reduction):  Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (vectorizable_reduction): Likewise.
        (vectorizable_call): Use new CALL_EXPR iterators.
        (vectorizable_conversion): Use build_call_expr.
        (vectorizable_operation): Use TREE_OPERAND_LENGTH.
        (vect_gen_widened_results_half): Use build_call_expr.
        (vect_setup_realignment): Likewise.
        (vectorizable_live_operation): Use TREE_OPERAND_LENGTH.

        * tree-object-size.c (alloc_object_size): Use new CALL_EXPR accessors.
        (pass_through_call): Likewise.
        (compute_object_sizes): Likewise.  Use fold_call_expr instead of
        fold_builtin.

        * tree-profile.c (tree_gen_interval_profiler): Use build_call_expr.
        (tree_gen_pow2_profiler): Likewise.
        (tree_gen_one_value_profiler): Likewise.
        (tree_gen_ic_func_profiler): Likewise.
        (tree_gen_average_profiler): Likewise.
        (tree_gen_ior_profiler): Likewise.

        * tree-ssa-structalias.c (get_constraint_for): Add case tcc_vl_exp.
        (find_func_aliases): Use new CALL_EXPR accessors.  Add case
        tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.

        * tree-ssa-reassoc.c (get_rank): Use TREE_OPERAND_LENGTH instead
        of TREE_CODE_LENGTH.

        * stmt.c (warn_if_unused_value): Use TREE_OPERAND_LENGTH instead
        of TREE_CODE_LENGTH.

        * convert.c (convert_to_real): Use new CALL_EXPR accessors and
        constructor.
        (convert_to_integer): Likewise.

        * tree-ssa-operands.c (get_call_expr_operands): Use new CALL_EXPR
        accessors.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * config/alpha/alpha.c (alpha_expand_builtin): Use new CALL_EXPR
        accessors.
        * config/frv/frv.c (frv_expand_builtin): Likewise.
        * config/s390/s390.c (s390_expand_builtin): Likewise.

        * config/sparc/sparc.c (sparc_gimplify_va_arg): Use build_call_expr.
        (sparc_expand_builtin): Use new CALL_EXPR accessors.

        * config/i386/i386.c (ix86_function_ok_for_sibcall): Likewise.
        (ix86_expand_binop_builtin): Pass entire CALL_EXPR as parameter
        instead of arglist.  Use new CALL_EXPR accessors on it.  Fix callers.
        (ix86_expand_store_builtin): Likewise.
        (ix86_expand_unop_builtin): Likewise.
        (ix86_expand_unop1_builtin): Likewise.
        (ix86_expand_sse_compare): Likewise.
        (ix86_expand_sse_comi): Likewise.
        (ix86_expand_vec_init_builtin): Likewise.
        (ix86_expand_vec_ext_builtin): Likewise.
        (ix86_expand_vec_set_builtin): Likewise.
        (ix86_expand_builtin): Use new CALL_EXPR accessors.

        * config/sh/sh.c (sh_expand_builtin): Use new CALL_EXPR accessors.
        * config/c4x/c4x.c (c4x_expand_builtin): Likewise.

        * config/iq2000/iq2000.c (expand_one_builtin): Pass entire CALL_EXPR
        instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (iq2000_expand_builtin): Use new CALL_EXPR accessors.

        * config/rs6000/rs6000-c.c (altivec_build_resolved_builtin): Use
        build_call_expr.
        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
        (rs6000_expand_unop_builtin): Pass entire CALL_EXPR instead of
        arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (altivec_expand_abs_builtin): Likewise.
        (rs6000_expand_binop_builtin): Likewise.
        (altivec_expand_predicate_builtin): Likewise.
        (altivec_expand_lv_builtin): Likewise.
        (spe_expand_stv_builtin): Likewise.
        (altivec_expand_stv_builtin): Likewise.
        (rs6000_expand_ternop_builtin): Likewise.
        (altivec_expand_ld_builtin): Use new CALL_EXPR accessors.
        (altivec_expand_st_builtin): Likewise.
        (altivec_expand_dst_builtin): Likewise.
        (altivec_expand_vec_init_builtin): Pass entire CALL_EXPR instead of
        arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (altivec_expand_vec_set_builtin): Likewise.
        (altivec_expand_vec_ext_builtin): Likewise.
        (altivec_expand_builtin): Use new CALL_EXPR accessors.
        (spe_expand_builtin): Likewise.
        (spe_expand_predicate_builtin): Pass entire CALL_EXPR instead of
        arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (spe_expand_evsel_builtin): Likewise.
        (rs6000_expand_builtin): Use new CALL_EXPR accessors.  VCFUX and
        FCFSX cases must construct whole new CALL_EXPR, not just arglist.

        * config/arm/arm.c (arm_expand_binop_builtin): Pass entire CALL_EXPR
        instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (arm_expand_unop_builtin): Likewise.
        (arm_expand_builtin): Use new CALL_EXPR accessors.

        * config/mips/mips.c (mips_expand_builtin):  Use new CALL_EXPR
        accessors.

        * config/bfin/bfin.c (bfin_expand_binop_builtin): Pass entire CALL_EXPR
        instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (bfin_expand_unop_builtin): Likewise.
        (bfin_expand_builtin): Use new CALL_EXPR accessors.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * c-semantics.c (build_stmt): Add internal diagnostic check.

        * c-pretty-print.c (pp_c_postfix_expression): Use new CALL_EXPR
        accessors.  Print arguments explicitly instead of as a list.

        * c-typeck.c (build_function_call): Use new CALL_EXPR constructors.

        * c-omp.c (c_finish_omp_barrier): Use build_call_expr.
        (c_finish_omp_flish): Likewise.

        * c-common.c (verify_tree): Use new CALL_EXPR accessors.  Traverse
        arguments explicitly instead of as a list.  Use TREE_OPERAND_LENGTH
        instead of TREE_CODE_LENGTH.
        (check_function_arguments_recurse): Use new CALL_EXPR accessors.
        (c_warn_unused_result): Likewise.

2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/26494
        * doc/invoke.texi (Warning Options): Remove
        -Werror-implicit-function-declaration.
        (Wimplicit-function-declaration): Update description.
        * opts.c (common_handle_option): Move handling of -Werror=* to...
        (enable_warning_as_error): ...here.
        * opts.h (enable_warning_as_error): Declare.
        * c-decl.c (implicit_decl_warning): Unless
        -Wno-implicit-function-declaration is given, emit a pedwarn if
        -std=c99 or emit a warning if -Wimplicit-function-declaration.
        * c.opt (Wimplicit-function-declaration): Replace
        mesg_implicit_function_declaration with
        warn_implicit_function_declaration.
        * c-opts.c (c_common_handle_option):
        -Werror-implicit-function-declaration is exactly equal as
        -Werror=implicit-function-declaration.
        (set_Wimplicit): Replace mesg_implicit_function_declaration with
        warn_implicit_function_declaration.
        (c_common_post_options): -Wimplict-function-declaration is enabled
        by default by -std=c99, otherwise is disabled by default.
        * c-objc-common.c (c_objc_common_init): Remove flawed logic.

2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_modify_expr): During gimplification, attach a
        DECL on the rhs to a DECL on the lhs for debug info purposes if the
        former is ignored but not the latter.

2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.c (expand_expr_real_1) <normal_inner_ref>: If a temporary
        is made and the reference doesn't use the alias set of its type,
        do not create the temporary using that type.

2007-02-15  Aldy Hernandez  <aldyh@redhat.com>

        * jump.c: Remove prototypes for delete_computation and
        delete_prior_computation.

2007-02-15  Paolo Bonzini  <bonzini@gnu.org>

        * jump.c (get_label_after): Delete.
        (get_label_before, delete_computation, delete_jump,
        delete_prior_computation, follow_jumps): Move...
        * reorg.c (delete_computation, delete_prior_computation): ... here...
        (get_label_before, delete_jump): ... making these static ...
        (follow_jumps): ... and simplifying this since it only runs after
        reload.
        * rtl.h (get_label_after, get_label_before, delete_jump,
        follow_jumps): Delete prototypes.

2007-02-15  Paolo Bonzini  <bonzini@gnu.org>

        * caller-save.c (save_call_clobbered_regs): Do not process sibcalls.

2007-02-15  Nick Clifton  <nickc@redhat.com>

        * varasm.c (default_asm_output_anchor): Prepend * to . symbol in
        order to prevent it from being munged by the target.

2007-02-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md: Remove misleading comment.

2007-02-15  Alexandre Oliva  <aoliva@redhat.com>

        * config/frv/frv.md (reload_incc, reload_outcc, reload_incc_uns,
        reload_outcc_uns, reload_incc_nz, reload_outcc_nz): Remove
        invalid patterns.

2007-02-15  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (instantiate_missing_elements): Canonicalize
        bit-field types.
        (sra_build_assignment): New.
        (generate_copy_inout, generate_element_copy,
        generate_element_zero, generate_one_element_init): Use it.

2007-02-15  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (instantiate_missing_elements): Canonicalize
        bit-field types.
        (sra_build_assignment): New.
        (generate_copy_inout, generate_element_copy,
        generate_element_zero, generate_one_element_init): Use it.

2007-02-15  Alexandre Oliva  <aoliva@redhat.com>

        * dwarf2out.c (dwarf2out_finish): Accept namespaces as context of
        limbo die nodes.

2007-02-14  Joseph Myers  <joseph@codesourcery.com>

        * emit-rtl.c (set_mem_attributes_minus_bitpos): Treat complex
        types as aggregates not scalars.
        * function.c (assign_stack_temp_for_type): Likewise.

2007-02-14  Roger Sayle  <roger@eyesopen.com>
            Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-dump.c (dump_switch_p_1): Require exact match of the option
        name.

2007-02-14  Zdenek Dvorak  <dvorakz@suse.cz>

        * passes.c (next_pass_1): Clear the next field of the copied
        pass structure.

2007-02-14  Richard Henderson  <rth@redhat.com>

        * tree-sra.c (early_sra): New.
        (decl_can_be_decomposed_p): Deny va_list if early_sra.
        (tree_sra_early, pass_sra_early): New.
        * tree-pass.h (pass_sra_early): Declare.
        * passes.c (init_optimization_passes): Use it.

2007-02-14  Richard Guenther  <rguenther@suse.de>

        * flags.h (issue_strict_overflow_warning): Convert to a macro.

2007-02-14  Dorit Nuzman  <dorit@il.ibm.com>

         PR tree-optimization/30771
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Traverse
        also phi nodes.
        (vect_analyze_operations): Induction phis can now be marked as
        used_in_loop.
        (vect_mark_stmts_to_be_vectorized): No special treatment for phis.
        Update documentation accordingly.

2007-02-14  Nick Clifton  <nickc@redhat.com>

        * builtin-types.def (DEF_FUNCTION_TYPE_x): Do not imply that at
        most 3 arguments are supported.
        (DEF_FUNCTION_TYPE_VAR_5): Fix typo in its description.

2007-02-13  Seongbae Park <seongbae.park@gmail.com>

        * bitmap.c (bitmap_and, bitmap_and_compl, bitmap_xor):
        Ensure dst->current is valid.

2007-02-13  Paul Brook  <paul@codesourcery.com>

        * config.gcc: Add arm*-*-uclinux-*eabi.
        * config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
        (SUBTARGET_EXTRA_LINK_SPEC): Define.
        (STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
        (LINK_GCC_C_SEQUENCE_SPEC): Undef.
        (LINK_SPEC): Define.
        (LIB_SPEC): Define.
        * config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
        register.
        * config/arm/uclinux-eabi.h: New file.
        * config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
        * config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
        based targets.

2007-02-13  Ian Lance Taylor  <iant@google.com>

        * common.opt: Add Wstrict-overflow and Wstrict-overflow=.
        * flags.h (warn_strict_overflow): Declare.
        (enum warn_strict_overflow_code): Define.
        (issue_strict_overflow_warning): New static inline function.
        * opts.c (warn_strict_overflow): New variable.
        (common_handle_option): Handle OPT_Wstrict_overflow and
        OPT_Wstrict_overflow_.
        * c-opts.c (c_common_handle_option): Set warn_strict_overflow for
        OPT_Wall.
        * fold-const.c: Include intl.h.
        (fold_deferring_overflow_warnings): New static variable.
        (fold_deferred_overflow_warning): New static variable.
        (fold_deferred_overflow_code): New static variable.
        (fold_defer_overflow_warnings): New function.
        (fold_undefer_overflow_warnings): New function.
        (fold_undefer_and_ignore_overflow_warnings): New function.
        (fold_deferring_overflow_warnings_p): New function.
        (fold_overflow_warning): New static function.
        (make_range): Add strict_overflow_p parameter.  Change all
        callers.
        (extract_muldiv, extract_muldiv_1): Likewise.
        (fold_unary) [ABS_EXPR]: Check ABS_EXPR before calling
        tree_expr_nonnegative_p.
        (fold_negate_expr): Call fold_overflow_warning.
        (fold_range_test): Likewise.
        (fold_comparison): Likewise.
        (fold_binary): Likewise.  Call tree_expr_nonnegative_warnv_p
        instead of tree_expr_nonnegative_p.
        (tree_expr_nonnegative_warnv_p): Rename from
        tree_expr_nonnegative_p, add strict_overflow_p parameter.
        (tree_expr_nonnegative_p): New function.
        (tree_expr_nonzero_warnv_p): Rename from tree_expr_nonzero_p, add
        strict_overflow_p parameter.
        (tree_expr_nonzero_p): New function.
        * passes.c (verify_interpass_invariants): New static function.
        (execute_one_pass): Call it.
        * tree-ssa-loop-niter.c (expand_simple_operations): Ignore fold
        warnings.
        (number_of_iterations_exit, loop_niter_by_eval): Likewise.
        (estimate_numbers_of_iterations): Likewise.
        (scev_probably_wraps_p): Likewise.
        * tree-ssa-ccp.c: Include "toplev.h".
        (evaluate_stmt): Defer fold overflow warnings until we know we are
        going to optimize.
        (struct fold_stmt_r_data): Add stmt field.
        (fold_stmt_r): Defer fold overflow warnings until we know we
        optimized.
        (fold_stmt): Initialize stmt field of fold_stmt_r_data.
        (fold_stmt_inplace): Likewise.
        * tree-cfgcleanup.c: Include "toplev.h" rather than "errors.h".
        (cleanup_control_expr_graph): Defer fold overflow warnings until
        we know we are going to optimize.
        * tree-cfg.c (fold_cond_expr_cond): Likewise.
        * tree-ssa-threadedge.c (simplify_control_stmt_condition):
        Likewise.
        * tree-vrp.c (vrp_expr_computes_nonnegative): Call
        tree_expr_nonnegative_warnv_p instead of tree_expr_nonnegative_p.
        * tree-ssa-loop-manip.c (create_iv): Likewise.
        * c-typeck.c (build_conditional_expr): Likewise.
        (build_binary_op): Likewise.
        * tree-vrp.c (vrp_expr_computes_nonzero): Call
        tree_expr_nonzero_warnv_p instead of tree_expr_nonzero_p.
        (extract_range_from_unary_expr): Likewise.
        * simplify-rtx.c (simplify_const_relational_operation): Warn when
        assuming that signed overflow does not occur.
        * c-common.c (pointer_int_sum): Ignore fold overflow warnings.
        * tree.h (tree_expr_nonnegative_warnv_p): Declare.
        (fold_defer_overflow_warnings): Declare.
        (fold_undefer_overflow_warnings): Declare.
        (fold_undefer_and_ignore_overflow_warnings): Declare.
        (fold_deferring_overflow_warnings_p): Declare.
        (tree_expr_nonzero_warnv_p): Declare.
        * doc/invoke.texi (Option Summary): Add -Wstrict-overflow to list
        of warning options.
        (Warning Options): Document -Wstrict-overflow.
        * Makefile.in (tree-ssa-threadedge.o): Depend on toplev.h.
        (tree-ssa-ccp.o): Likewise.
        (tree-cfgcleanup.o): Change errors.h dependency to toplev.h.
        (fold-const.o): Depend on intl.h.

2007-02-13  Ian Lance Taylor  <iant@google.com>

        PR middle-end/30751
        * lower-subreg.c (resolve_simple_move): Decompose subregs in
        addresses.

2007-02-13  Stuart Hastings  <stuart@apple.com>

        * gcc/config/i386/i386.md (fixuns_truncdfhi2): Require SSE2.

2007-02-13  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_stdarg_optimize_hook): Strip
        handled_component_p before looking for the indirect_ref.

2007-02-13  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.md (bswapsi_1): Rename from bswapsi2,
        remove flags clobber.
        (bswapsi2): New expander, emit code for !TARGET_BSWAP.
        (bswaphi_lowpart): New.
        (bswapdi2): Rename from bswapdi2_rex, remove flags clobber,
        remove TARGET_BSWAP test.  Delete expander of the same name.

        * optabs.c (widen_bswap, expand_doubleword_bswap): New.
        (expand_unop): Use them.

2007-02-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (cmpdi_ccno_1_rex64, *cmpsi_ccno_1,
        *cmphi_ccno_1, *cmpqi_ccno_1, *movsi_xor, *movstricthi_xor,
        *movstrictqi_xor, *movdi_xor_rex64, *ashldi3_1_rex64,
        *ashldi3_cmp_rex64, *ashldi3_cconly_rex64, ashlsi3, *ashlsi3_1_zext,
        *ashlsi3_cmp, *ashlsi3_cconly, *ashlsi3_cmp_zext, *ashlhi3_1_lea,
        *ashlhi3_1, *ashlhi3_cmp, *ashlhi3_cconly, *ashlqi3_1_lea,
        *ashlqi3_1, *ashlqi3_cmp, *ashlqi3_cconly): Remove equivalent
        assembler dialect choice from asm templates.

2007-02-12  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.md (fixuns_trunc<SSEMODEF>si_1): New insn.
        (fixuns_trunc<SSEMODEF>si2): Use it.
        * config/i386/sse.md (vec_setv4sf_0): Export.
        * config/i386/i386.c (ix86_build_const_vector): Export.
        (ix86_split_convert_uns_si_sse): Rename from
        ix86_expand_convert_uns_si_sse and rewrite as a splitter.
        * config/i386/i386-protos.h: Update.

2007-02-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/29521
        * c-typeck.c (c_finish_return): Improve warning message.

2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * alias.c (find_symbolic_term): Delete unused function.

2007-02-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (paritydi2, paritysi2): New expanders.
        (paritydi2_cmp, paritydi2_cmp): New insn and split patterns.
        (*parityhi2_cmp, *parityqi2_cmp): New insn patterns.

2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
        * cgraphunit.c (cgraph_expand_function): If DECL_IGNORED_P is set on
        the function, temporarily point the debug interface to the null one.

2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>

        * dwarf2out.c (round_up_to_align): New static function.
        (field_byte_offset): Use it to round the offset.

2007-02-12  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.md (bswapsi2, bswapdi2): New.
        (inswl_const): Export.

2007-02-12  Richard Henderson  <rth@redhat.com>

        * calls.c (emit_library_call_value_1): If PROMOTE_MODE modifed the
        result mode of the libcall, convert back to outmode.

2007-02-12  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.md (*bswapdi2_rex): Renamed from bswapdi2.
        (bswapdi2): New define_expand to implement 32-bit implementation.

2007-02-12  Nick Clifton  <nickc@redhat.com>

        * doc/invoke.texi (Overall Options): Document --help=.
        * gcc.c (target_help_flag): Rename to print_subprocess_flag.
        (cc1_options): Pass --help= on to cc1.
        (display_help): Add description of --help=.
        (process_command): Add code to handle --help=.  Allow translated
        --help and --target-help switches to be passed on to compiler
        sub-process.
        (main): Remove unused if statement.
        * opts.c (columns): Remove.
        (LEFT_COLUMN): Define.
        (wrap_help): Add columns argument.
        (print_filtered_help): Change parameters to be an include bitmask,
        an exclude bitmask, an any bitmask and the column width.  Move the
        code to display the params list here.  Add code to display the
        status of options rather than their descriptions if the quiet flag
        is not active.
        (print_specific_help): Change parameters to be an include bitmask,
        an exclude bitmask and an any bitmask.  Move code to look up the
        column width here.  Decide upon the title for an options listing.
        (common_handle_options): Add code to handle --help=.  Adapt code
        for --help and --target-help to use the revised form of the
        print_specific_help function.
        (print_help): Delete.
        (print_param_help): Delete.
        (print_switch): Delete.
        * opts.h (cl_lang_count): Add prototype.
        (CL_PARAMS, CL_WARNING, CL_OPTIMIZATION, CL_MIN_OPTION_CLASS,
        CL_MAX_OPTION_CLASS): New defines.
        * optc-gen.awk: Add construction of cl_lang_count.
        * c.opt: Add Warning attribute to warning options and Optimization
        attribute to optimization options.
        * common.opt: Likewise.
        Add --help=.
        Add -fhelp and -ftarget-help as aliases for the transformed --help
        and --target-help options.
        * opt-functions.awk: Add code to handle Warning and Optimization
        attributes.

2007-02-12  Richard Henderson  <rth@redhat.com>

        * config/alpha/constraints.md: New file.
        * config/alpha/alpha.c: Include tm-constrs.h.
        (alpha_const_ok_for_letter_p, alpha_const_double_ok_for_letter_p,
        alpha_extra_constraint): Remove.
        (alpha_emit_conditional_branch): Use satisfies_constraint_*.
        * config/alpha/alpha-protos.h: Update.
        * config/alpha/alpha.h (REG_CLASS_FROM_LETTER): Remove.
        (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Remove.
        (EXTRA_CONSTRAINT): Remove.
        * config/alpha/alpha.md: Include constraints.md.
        (adddi splitter): Use satisfies_constraint_*.
        * config/alpha/predicates.md (add_operand): Likewise.
        (sext_add_operand, addition_operation): Likewise.

2007-02-12  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/29145
        * tree-data-ref.c (base_addr_differ_p): Make us more conservative
        in our handling of restrict qualified pointers.

2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/7651
        * doc/invoke.texi (Wunused-value): Update description.
        (Wextra): Delete item.
        * opts.c (set_Wextra): Don't use the value of Wextra to set the
        value of Wunused-value.
        * c-typeck.c (c_process_expr_stmt): Don't check extra_warnings.
        (c_finish_stmt_expr): Don't check extra_warnings.
        (emit_side_effect_warnings): The caller is responsible to check
        warn_unused_value.

2007-02-11  Roger Sayle  <roger@eyesopen.com>
            Matt Thomas  <matt@3am-software.com>

        * simplify-rtx.c (simplify_relational_operation_1): Correct typo.

2007-02-11  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_relational_operation_1): Optimize
        comparisons of POPCOUNT against zero.
        (simplify_const_relational_operation): Likewise.

2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * doc/invoke.texi (Wextra): Delete outdated paragraph.

2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * dwarf2out.c (root_type): Delete unused function.

2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * genattrtab.c (contained_in_p): Delete unused function.
        (write_expr_attr_cache): Likewise.

2007-02-11  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_edge_badness): Add "else" missing in the
        previous patch.

2007-02-11  Steven Bosscher  <steven@gcc.gnu.org>

        * fwprop.c (try_fwprop_subst): Use set_unique_reg_note
        to add the REG_EQ* note.
        * see.c (see_merge_one_use_extension): Likewise.
        * local-alloc.c (update_equiv_regs): Likewise.  Also don't
        turn REG_EQUAL notes into REG_EQUIV notes if the target
        register may have more than one set.
        * function.c (assign_parm_setup_reg): Use set_unique_reg_note.
        * gcse.c (try_replace_reg): Likewise.
        * alias.c (init_alias_analysis): Use find_reg_equal_equiv_note.
        * calls.c (fixup_tail_calls): Likewise.  Abort if there is
        more than one REG_EQUIV note.
        * reload1.c (gen_reload): Use set_unique_reg_note.

2007-02-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (TARGET_VECTORIZE_BUILTIN_CONVERSION): Define.
        (ix86_builtin_conversion): New function.

2007-02-06  Mark Mitchell  <mark@codesourcery.com>

        PR target/29487
        * tree.h (DECL_REPLACEABLE_P): New macro.
        * except.c (set_nothrow_function_flags): Likewise.

2007-02-11  Tehila Meyzels  <tehila@il.ibm.com>
            Ira Rosen  <irar@il.ibm.com>
            Dorit Nuzman  <dorit@il.ibm.com>

        * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): New target hook.
        * targhooks.c (default_builtin_vectorized_conversion): New.
        * targhooks.h (default_builtin_vectorized_function): New declaration.
        * target.h (struct vectorize): Add builtin_conversion field.
        * tree-vectorizer.h (type_conversion_vec_info_type): New enum
        stmt_vec_info_type value.
        (vectorizable_conversion): New declaration.
        * tree-vect-analyze.c (vect_analyze_operations): Add
        vectorizable_conversion call.
        * target-def.h (TARGET_VECTORIZE_BUILTIN_CONVERSION): New.
        * tree-vect-transform.c (vectorizable_conversion): New function.
        (vect_transform_stmt): Add case for type_conversion_vec_info_type.
        * tree-vect-generic.c (expand_vector_operations_1): Consider correct
        mode.
        * config/rs6000/rs6000.c (rs6000_builtin_conversion): New.
        (TARGET_VECTORIZE_BUILTIN_CONVERSION): Defined.
        (rs6000_expand_builtin): Add handling a case of ALTIVEC_BUILTIN_VCFUX
        or ALTIVEC_BUILTIN_VCFSX.

2007-02-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/30634
        * pa.md (movdf): For 64-bit target, fail if operand 1 is a non-zero
        CONST_DOUBLE and operand 0 is a hard register.
        (movdi): For 64-bit target, remove code to force CONST_DOUBLE to
        memory.  Fail if operand 1 is a non-zero CONST_INT and operand 0
        is a hard floating-point register.

2007-02-10  Richard Henderson  <rth@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>
            Alexandre Oliva  <aoliva@redhat.com>

        * Makefile.in (libgcc-support, libgcc.mvars): Add emutls.c.
        * builtin-types.def (BT_WORD): Make unsigned.
        (BT_FN_VOID_PTR_WORD_WORD_PTR): New.
        * builtins.def (BUILT_IN_EMUTLS_GET_ADDRESS): New.
        (BUILT_IN_EMUTLS_REGISTER_COMMON): New.
        * c-decl.c (grokdeclarator): Don't error if !have_tls.
        * c-parser.c (c_parser_omp_threadprivate): Likewise.
        * dwarf2out.c (loc_descriptor_from_tree_1): Don't do anything for
        emulated tls.
        * expr.c (emutls_var_address): New.
        (expand_expr_real_1): Expand emulated tls.
        (expand_expr_addr_expr_1): Likewise.
        * libgcc-std.ver: Add __emutls_get_address, __emutls_register_common.
        * output.h (emutls_finish): Declare.
        * toplev.c (compile_file): Call it.
        * tree-ssa-address.c (gen_addr_rtx): Check for const-ness of the
        address before wrapping in CONST.
        * varasm.c (emutls_htab, emutls_object_type): New.
        (EMUTLS_VAR_PREFIX, EMUTLS_TMPL_PREFIX): New.
        (get_emutls_object_name, get_emutls_object_type): New.
        (get_emutls_init_templ_addr, emutls_decl): New.
        (emutls_common_1, emutls_finish): New.
        (assemble_variable): When emulating tls, swap decls; generate
        constructor for the emutls objects.
        (do_assemble_alias): When emulating tls, swap decl and target name.
        (default_encode_section_info): Don't add SYMBOL_FLAG_TLS_SHIFT
        for emulated tls.
        * varpool.c (decide_is_variable_needed): Look at force_output.
        Recurse for emulated tls.
        (cgraph_varpool_remove_unreferenced_decls): Remove checks redundant
        with decide_is_variable_needed.
        * emutls.c: New file.
        * config/sparc/sol2.h (ASM_DECLARE_OBJECT_NAME): Only emit
        tls_object for real tls.

2007-02-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR rtl-optimization/29599
        * reload1.c (eliminate_regs_in_insn): Take the destination
        mode into account when computing the offset.

2007-02-09  Stuart Hastings  <stuart@apple.com>
            Richard Henderson  <rth@redhat.com>

        * gcc/config/i386/i386.h (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
        * gcc/config/i386/darwin.h: (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
        * gcc/config/i386/i386.md (fixuns_trunc<mode>si2, fixuns_truncsfhi2,
        fixuns_truncdfhi2): New.
        (fix_truncsfdi_sse): Call ix86_expand_convert_sign_didf_sse.
        (floatunsdidf2): Call ix86_expand_convert_uns_didf_sse.
        (floatunssisf2): Add call to ix86_expand_convert_uns_sisf_sse.
        (floatunssidf2): Allow nonimmediate source.
        * gcc/config/i386/sse.md (movdi_to_sse): New.
        (vec_concatv2di): Drop '*'.
        * gcc/config/i386/i386-protos.h (ix86_expand_convert_uns_si_sse,
        ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
        ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse):
        New.
        * gcc/config/i386/i386.c (ix86_expand_convert_uns_si_sse,
        ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
        ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse,
        ix86_build_const_vector, ix86_expand_vector_init_one_nonzero): New.
        (ix86_build_signbit_mask): Fix decl of v, refactor to call
        ix86_build_const_vector.
        (x86_emit_floatuns): Rewrite.

2007-02-10  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * genautomata.c (longest_path_length): Delete unused function.
        (struct state): Delete unused longest_path_length.
        (UNDEFINED_LONGEST_PATH_LENGTH): Delete unused macro.
        (get_free_state): Delete unused.

2007-02-09  Jan Hubicka  <jh@suse.cz>

        * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 30.
        * doc/invoke.texi (inline-unit-growth): Update default value.

        * Makefile.in (passes.o, ipa-inline.o): Add dependencies.
        * cgraphbuild.c (build_cgraph_edges): Compute frequencies.
        (rebuild_cgraph_edges): Likewise.
        * cgraph.c (cgraph_set_call_stmt): Add new argument frequency.
        (dump_cgraph_node): Dump frequencies.
        (cgraph_clone_edge): Add frequency scales.
        (cgraph_clone_node): Add freuqnecy.
        * cgraph.h (cgraph_edge): Add freuqnecy argument.
        (CGRAPH_FREQ_BASE, CGRAPH_FREQ_MAX): New constants.
        (cgraph_create_edge, cgraph_clone_edge, cgraph_clone_node): Update.
        * tree-pass.h (TODO_rebuild_frequencies): New constant.
        * cgraphunit.c (verify_cgraph_node): Verify frequencies.
        (cgraph_copy_node_for_versioning): Update call of cgraph_clone_edge.
        (save_inline_function_body): Likewise.
        * ipa-inline.c: inluce rtl.h
        (cgraph_clone_inlined_nods): Update call of cgraph_clone_node.
        (cgraph_edge_badness): Use frequencies.
        (cgraph_decide_recursive_inlining): Update clonning.
        (cgraph_decide_inlining_of_small_function): Dump frequency.
        * predict.c (estimate_bb_frequencies): Export.
        * predict.h (estimate_bb_frequencies): Declare.
        * tree-inline.c (copy_bb): Watch overflows.
        (expand_call_inline): Update call of cgraph_create_edge.
        (optimize_inline_calls): Use TODO flags to update frequnecies.
        * passes.h: Include predict.h
        (init_optimization_passes): Move profile ahead.
        (execute_function_todo): Handle TODO_rebuild_frequencies.

2007-02-09  Roger Sayle  <roger@eyesopen.com>

        * config/alpha/alpha.c (emit_insxl): Force the first operand of
        the insbl or inswl pattern into a register.

2007-02-09  Roger Sayle  <roger@eyesopen.com>

        * config/ia64/ia64.md (bswapdi2): New define_insn.

2007-02-09  Richard Henderson  <rth@redhat.com>

        * config/i386/constraints.md (Ym): New constraint.
        * config/i386/i386.md (movsi_1): Change Y2 to Yi constraints.
        (movdi_1_rex64): Split sse and xmm general register moves from
        memory move alternatives.  Use conditional register constraints.
        (movsf_1, movdf_integer): Likewise.
        (zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
        (movdf_integer_rex64): New.
        (pushsf_rex64): Fix output constraints.
        * config/i386/sse.md (sse2_loadld): Split rm alternative, use Yi.
        (sse2_stored): Likewise.
        (sse2_storeq_rex64): New.
        * config/i386/i386.c (x86_inter_unit_moves): Enable for not
        amd and not generic.
        (ix86_secondary_memory_needed): Don't bypass TARGET_INTER_UNIT_MOVES
        for optimize_size.  Remove SF/DFmode hack.

2007-02-09  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>

        * config/i386/driver-i386.c: Turn on -mtune=native for AMDFAM10.
        (bit_SSE4a): New.

2007-02-09  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68010-*-netbsdelf*, m68k*-*-netbsdelf*)
        (m68k*-*-openbsd*, m68k-*-linux*): Set default_cf_cpu.
        (m68k-*-aout*, m68k-*-coff*, m68k-*-uclinux*, m68k-*-rtems*): Add
        m68k/t-mlib to tmake_file.
        (m68020-*-elf*, m68k-*-elf*): Likewise.  Add t-m68kbare as well.
        (m68k*-*-*): Use --with-arch to pick a default for --with-cpu.
        (m680[012]0-*-*, m68k*-*-*): Add support for --with-arch.
        Allow it to be cf or m68k.  Set m68k_arch_family.  If that
        variable is not empty, add t-$m68k_arch_family to tmake_file.
        Add t-mlibs to tmake_file.
        * doc/install.texi: Document --with-arch=m68k and --with-arch=cf.
        * config/m68k/t-cf: New file.
        * config/m68k/t-m68k: Likewise.
        * config/m68k/t-mlibs: Likewise.
        * config/m68k/t-m68kbare (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
        (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
        (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
        * config/m68k/t-m68kelf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
        (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS, LIBGCC, INSTALL_LIBGCC):
        Delete.
        * config/m68k/t-openbsd (MULTILIB_OPTIONS, LIBGCC): Delete.
        (INSTALL_LIBGCC): Delete.
        (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
        * config/m68k/t-rtems (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
        (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
        (M68K_MLIB_CPU): Define.
        * config/m68k/t-uclinux (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
        (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
        (M68K_MLIB_CPU, M68K_MLIB_OPTIONS, M68K_MLIB_DIRNAMES): Define.

2007-02-09  Zdenek Dvorak  <dvorakz@suse.cz>
            Richard Guenther  <rguenther@suse.de>

        PR middle-end/23361
        * fold-const.c (fold_comparison): Handle obfuscated comparisons
        against INT_MIN/INT_MAX.
        * tree-ssa-loop-ivcanon.c (remove_empty_loop): Print to dump
        file if a loop is removed.

2007-02-09  Joseph Myers  <joseph@codesourcery.com>

        * calls.c (store_one_arg): Pass correct alignment to
        emit_push_insn for non-BLKmode values.
        * expr.c (emit_push_insn): If STRICT_ALIGNMENT, copy to an
        unaligned stack slot via a suitably aligned slot.

2007-02-08  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_unpend_compare): Add default to silence
        warnings.
        (legal_subregs): Use unsigned char, make const.
        (m32c_illegal_subreg_p): Use ARRAY_SIZE.  Delete unused variables.

2007-02-08  Paul Brook  <paul@codesourcery.com>

        * config/arm/lib1funcs.asm (RETLDM): Pop directly into PC when no
        special interworking needed.

2007-02-08  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/xmmintrin.h: Make inclusion of emmintrin.h
        conditional to __SSE2__.
        (Entries below should have been added to first ChangeLog
        entry for amdfam10 dated 2007-02-05)
        * config/i386/emmintrin.h: Generate #error if __SSE2__ is not
        defined.
        * config/i386/pmmintrin.h: Generate #error if __SSE3__ is not
        defined.
        * config/i386/tmmintrin.h: Generate #error if __SSSE3__ is not
        defined.

2007-02-08  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c-protos.h (m32c_illegal_subreg_p): New.
        * config/m32c/m32c.c (legal_subregs): New.
        (m32c_illegal_subreg_p): New.
        * config/m32c/predicates.md (m32c_any_operand): Use it to reject
        unsupported subregs of hard regs.

2007-02-08  Jan Hubicka  <jh@suse.cz>

        * tree-cfg.c (bsi_replace): Shortcut when replacing the statement with
        the same one; always update histograms.

2007-02-08  Diego Novillo  <dnovillo@redhat.com>

        * passes.c (init_optimization_passes): Tidy comment.

2007-02-08  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_unary_operation_1) <POPCOUNT>: We can
        strip zero_extend, bswap and rotates from POCOUNT's argument.
        <PARITY>: Likewise, we can strip not, bswap, sign_extend,
        zero_extend and rotates from PARITY's argument.
        <BSWAP>: A byte-swap followed by a byte-swap is an identity.
        (simplify_const_unary_operation) <BSWAP>: Evaluate the byte-swap
        of an integer constant at compile-time.

2007-02-08  Diego Novillo  <dnovillo@redhat.com>

        PR 30562
        * tree-flow.h (struct var_ann_d): Remove field 'is_used'.
        Update all users.
        * tree-ssa-alias.c (compute_is_aliased): Remove.  Update all
        users.
        (init_alias_info):
        * tree-ssa-live.c (remove_unused_locals): Do not remove
        TREE_ADDRESSABLE variables.
        * tree-ssa-structalias.c (compute_points_to_sets): Tidy.
        * tree-ssa-operands.c (add_virtual_operand): Remove argument
        FOR_CLOBBER.  Update all users.
        If VAR has an associated alias set, add a virtual operand for
        it if no alias is found to conflict with the memory reference.

2007-02-07  Jan Hubicka  <jh@suse.cz>
            Robert Kidd <rkidd@crhc.uiuc.edu>

        * value-prof.c (visit_hist, free_hist): Return 1 instead of 0.

2007-02-07  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (simple_move): Reject PARTIAL_INT modes.

2007-02-07  Roger Sayle  <roger@eyesopen.com>

        * config/rs6000/rs6000.md (ctz<mode>2, ffs<mode>2, popcount<mode>2,
        parity<mode>2, smulsi3_highpart, abstf2_internal, allocate_stack,
        tablejumpdi, movsi_to_cr_one): Remove constraints from
        define_expand's match_operands.

2007-02-07  Roger Sayle  <roger@eyesopen.com>

        * global.c (compute_regsets): Move declatation of "i" inside of
        #ifdef ELIMINABLE_REGS to avoid unused variable bootstrap failure.

2007-02-07  Jakub Jelinek  <jakub@redhat.com>

        PR c++/30703
        * gimplify.c (gimplify_scan_omp_clauses): Remove special casing
        of INDIRECT_REF <RESULT_DECL>.

        * config/i386/i386.c (override_options): Set PTA_SSSE3 for core2.

2007-02-06  J"orn Rennecke  <joern.rennecke@arc.com>
            Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/29746
        * config/sh/sh.c (expand_cbranchdi4): Use scratch register
        properly.
        (sh_initialize_trampoline): Add parentheses to avoid a warning.

2007-02-06  Zdenek Dvorak <dvorakz@suse.cz>

        * doc/loop.texi: Document possibility not to perform disambiguation
        of loops with multiple latches.
        * cfgloopmanip.c (alp_enum_p): Removed.
        (add_loop): Handle subloops.  Use get_loop_body_with_size.
        (create_preheader): Do not allow ENTRY_BLOCK_PTR to be preheader.
        * cfghooks.c (redirect_edge_and_branch_force): Set dominator for
        the new forwarder block.
        (make_forwarder_block): Only call new_bb_cbk if it is not NULL.
        Handle the case latch is NULL.
        * tree-ssa-dom.c (tree_ssa_dominator_optimize): Avoid cfg modifications
        when marking loop exits.
        * ifcvt.c (if_convert): Ditto.  Mark loop exits even if cfg cannot
        be modified.
        * loop-init.c (loop_optimizer_init): Do not modify cfg.  Call
        disambiguate_loops_with_multiple_latches.
        * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Calculate dominators
        before fix_loop_structure.
        * cfgloop.c: Include pointer-set.h and output.h.
        (canonicalize_loop_headers, HEADER_BLOCK, LATCH_EDGE,
        update_latch_info, mfb_keep_just, mfb_keep_nonlatch): Removed.
        (get_loop_latch_edges, find_subloop_latch_edge_by_profile,
        find_subloop_latch_edge_by_ivs, find_subloop_latch_edge,
        mfb_redirect_edges_in_set, form_subloop, merge_latch_edges,
        disambiguate_multiple_latches, get_loop_body_with_size,
        disambiguate_loops_with_multiple_latches): New functions.
        (flow_loop_dump): Dump multiple latch edges.
        (flow_loop_nodes_find): Handle loops with multiple latches.
        (flow_loops_find): Ditto. Do not call canonicalize_loop_headers.
        (glb_enum_p): Modified.
        (get_loop_body): Use get_loop_body_with_size.
        * cfgloop.h (LOOPS_HAVE_RECORDED_EXITS): New flag.
        (AVOID_CFG_MODIFICATIONS): New constant.
        (disambiguate_loops_with_multiple_latches, add_loop,
        get_loop_body_with_size): Declare.
        * Makefile.in (cfgloop.o): Add pointer-set.h and output.h.

2007-02-06  Seongbae Park <seongbae.park@gmail.com>

        PR inline-asm/28686
        * global.c (compute_regsets): New function.
        (global_alloc): Refactored ELIMINABLE_REGSET
        and NO_GLOBAL_ALLOC_REGS computation out.
        (rest_of_handle_global_alloc): Call compute_regsets()
        for non-optimizing case.

2007-02-06  Richard Henderson  <rth@redhat.com>

        * config/i386/constraints.md (Y2): Rename from Y.
        (Yi): New constraint.
        * config/i386/i386.md (movsi_1, movdi_2, pushdf_nointeger,
        pushdf_integer, movdf_nointeger, movdf_integer, zero_extendsidi2_32,
        zero_extendsidi2_rex64, truncxfdf2_mixed): Change Y constraints to Y2.
        (extendsfdf2_mixed, extendsfdf2_sse, truncdfsf_fast_mixed,
        truncdfsf_fast_sse, truncdfsf_mixed, fix_truncdfdi_sse,
        fix_truncdfsi_sse, floatsidf2_mixed, floatsidf2_sse,
        floatdidf2_mixed, floatdidf2_sse, absnegdf2_mixed,
        absnegdf2_sse, sse_setccdf, fop_df_comm_mixed, fop_df_comm_sse,
        fop_df_1_mixed, fop_df_1_sse): Change Y constraints to x.
        * config/i386/mmx.md (mov<MMXMODEI>_internal_rex64,
        mov<MMXMODEI>_internal, movv2sf_internal_rex64, movv2sf_internal,
        vec_extractv2si_1): Change Y constraints to Y2.
        * config/i386/sse.md (vec_setv4sf_0, vec_concatv2df, vec_dupv4si,
        vec_dupv2di, sse2_concatv2si, vec_concatv4si_1, vec_concatv2di):
        Change Y constraints to Y2.
        (sse2_loadld): Change Y constraints to x.

2007-02-06  Roger Sayle  <roger@eyesopen.com>

        * config/rs6000/rs6000.md (popcount<mode>2): Rewrite.
        (parity<mode>2): New define_expand using rs6000_emit_parity.
        * config/rs6000/rs6000.c (rs6000_emit_popcount,
        rs6000_emit_parity): New functions.
        * config/rs6000/rs6000-protos.h (rs6000_emit_popcount,
        rs6000_emit_parity): Prototype here.

2007-02-06  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (simple_move_operand): Reject CONST.
        (resolve_clobber): Call validate_change rather than directly
        assigning to XEXP (pat, 0).

2006-02-06  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in (tree-ssa-loop-ivopts.o): Add pointer-set.h dependency.
        (tree-ssa-reassoc.o): Add pointer-set.h dependency.
        (tree-cfg.o): Remove hashtab.h dependency.

        * tree-ssa-loop-ivopts.c: Include pointer-set.h.
        (struct ivopts_data): Change niters to pointer_map_t.
        (struct nfe_cache_elt, nfe_hash, nfe_eq): Delete.
        (niter_for_exit): Create pointer_map on demand.  Change for
        pointer_map API.
        (tree_ssa_iv_optimize_init): Initialize data->niters to NULL.
        (free_loop_data): Destroy data->niters if created and reset field.
        (tree_ssa_iv_optimize_finalize): Don't delete data->niters here.
        (tree_ssa_iv_optimize_loop): Check for presence of stale data.

        * tree-ssa-reassoc.c: Include pointer-set.h.
        (bb_rank): Change to long *.
        (operand_rank): Change to pointer_map_t.
        (find_operand_rank): Return long, -1 if not found.  Declare as inline.
        (insert_operand_rank): Accept long.
        (operand_entry_hash, operand_entry_eq): Remove.
        (get_rank): Return long.  Adjust for changes above.
        (init_reassoc): Change rank type to long.  Adjust creation of bb_rank
        and operand_rank.
        (fini_reassoc): Delete operand_rank with pointer_map_destroy.

        * tree-ssa-structalias.c (vi_for_tree): Change to pointer_map.
        (struct tree_vi, tree_vi_t, tree_vi_hash, tree_vi_eq): Delete.
        (insert_vi_for_tree): Rewrite for pointer_map API.  Assert argument
        is not NULL.
        (lookup_vi_for_tree): Rewrite for pointer_map API.  Return varinfo_t
        directly since it cannot be NULL.
        (get_vi_for_tree): Rewrite for pointer_map API.
        (find_what_p_points_to): Adjust for change to lookup_vi_for_tree.
        (init_alias_vars): Create vi_for_tree as pointer_map.
        (delete_points_to_sets): Delete vi_for_tree using pointer_map_destroy.

        * tree-cfg.c: Don't include hashtab.h.
        (edge_to_cases): Declare as pointer_map.
        (struct edge_to_cases_elt, edge_to_cases_hash, edge_to_cases_eq):
        Delete.
        (edge_to_cases_cleanup): Rewrite as pointer_map_traverse callback.
        (start_recording_case_labels): Create edge_to_cases as pointer_map.
        (end_recoding_case_labels): Cleanup edge_to_cases manually before
        destroying it.
        (record_switch_edge): Delete.
        (get_cases_for_edge): Adjust for pointer_map API, inline
        record_switch_edge (rewritten for new API), remove goto.

2006-02-06  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in (tree-nested.o): Add pointer-set.h dependency.
        * tree-nested.c: Include pointer-set.h.
        (var_map_elt, var_map_eq, var_map_hash): Delete.
        (struct nesting_info): Remove GTY marker.  Change the two htab_t's
        to pointer_map_t's.
        (nesting_info_bitmap_obstack): New.
        (lookup_field_for_decl): Adjust for pointer_map API.
        (lookup_tramp_for_decl): Adjust for pointer_map API.
        (get_nonlocal_debug_decl): Adjust for pointer_map API.
        (get_local_debug_decl): Adjust for pointer_map API.
        (convert_nl_goto_reference): Adjust for pointer_map API.
        (convert_nl_goto_receiver): Adjust for pointer_map API.
        (create_nesting_tree): Create outside GGC space.  Create bitmap on
        the new obstack.  Create field_map and var_map as pointer_maps.
        (free_nesting_tree): Adjust for changes to create_nesting_tree.
        (root): Delete.
        (lower_nested_functions): Move root here, no need to NULL it.
        Initialize and release the obstack.

2007-02-06  Paolo Bonzini  <bonzini@gnu.org>

        * tree.c (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p):
        Remove prototypes and make them non-static.
        (struct tree_int_map): Remove.
        * tree.h (struct tree_int_map): Move here, turning TO into an
        unsigned int.
        (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p): Declare.

        * tree.h (TREE_COMPLEXITY): Remove.
        (struct tree_exp): Remove complexity field.
        * tree.c (build1_stat): Don't set it.

2007-02-06  Dorit Nuzman  <dorit@il.ibm.com>
            Victor Kaplansky  <victork@il.ibm.com>

        * tree-vectorizer.c (vect_is_simple_use): Support induction.
        (vect_is_simple_reduction): Support reduction with induction as
        one of the operands.
        (vect_is_simple_iv_evolution): Fix formatting.
        * tree-vect-analyze.c (vect_mark_stmts_to_be_vectorized): Fix
        formatting.  Don't mark induction phis for vectorization.
        (vect_analyze_scalar_cycles): Analyze all inductions, then reductions.
        * tree-vect-transform.c (get_initial_def_for_induction): New function.
        (vect_get_vec_def_for_operand): Support induction.
        (vect_get_vec_def_for_stmt_copy): Fix formatting and add check for
        induction case.
        (vectorizable_reduction): Support reduction with induction as one of
        the operands.
        (vectorizable_type_demotion): Use def-type of stmt argument rather
        than dummy def-type.

        * tree-ssa-loop.c (gate_scev_const_prop): Return the value of
        flag_tree_scev_cprop.
        * common.opt (tree-scev-cprop): New flag.

        * tree-vect-transform.c (vect_create_destination_var): Use 'kind' in
        call to vect_get_new_vect_var.

2007-02-06  Ira Rosen  <irar@il.ibm.com>

        * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Check that
        vectype is not NULL.
        (vect_pattern_recog_1): Likewise.

2007-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (negate_expr_p): Handle CONJ_EXPR.
        (fold_negate_expr): Likewise.

2007-02-05  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/30189
        * dwarf2out.c (modified_type_die): Follow DECL_ORIGINAL_TYPE
        even if cv-qualification is the same.

2007-02-05  Geoffrey Keating  <geoffk@apple.com>

        * config/rs6000/darwin-tramp.asm (__trampoline_setup): Call
        __enable_execute_stack on completion.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_fldxf_k8, athlon_fld_k8,
        athlon_fstxf_k8, athlon_fst_k8, athlon_fist, athlon_fmov,
        athlon_fadd_load, athlon_fadd_load_k8, athlon_fadd, athlon_fmul,
        athlon_fmul_load, athlon_fmul_load_k8, athlon_fsgn,
        athlon_fdiv_load, athlon_fdiv_load_k8, athlon_fdiv_k8,
        athlon_fpspc_load, athlon_fpspc, athlon_fcmov_load,
        athlon_fcmov_load_k8, athlon_fcmov_k8, athlon_fcomi_load_k8,
        athlon_fcomi, athlon_fcom_load_k8, athlon_fcom): Added amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/i386.md (x86_sahf_1, cmpfp_i_mixed, cmpfp_i_sse,
        cmpfp_i_i387, cmpfp_iu_mixed, cmpfp_iu_sse, cmpfp_iu_387,
        swapsi, swaphi_1, swapqi_1, swapdi_rex64, fix_truncsfdi_sse,
        fix_truncdfdi_sse, fix_truncsfsi_sse, fix_truncdfsi_sse,
        x86_fldcw_1, floatsisf2_mixed, floatsisf2_sse, floatdisf2_mixed,
        floatdisf2_sse, floatsidf2_mixed, floatsidf2_sse,
        floatdidf2_mixed, floatdidf2_sse, muldi3_1_rex64, mulsi3_1,
        mulsi3_1_zext, mulhi3_1, mulqi3_1, umulqihi3_1, mulqihi3_insn,
        umulditi3_insn, umulsidi3_insn, mulditi3_insn, mulsidi3_insn,
        umuldi3_highpart_rex64, umulsi3_highpart_insn,
        umulsi3_highpart_zext, smuldi3_highpart_rex64,
        smulsi3_highpart_insn, smulsi3_highpart_zext, x86_64_shld,
        x86_shld_1, x86_64_shrd, sqrtsf2_mixed, sqrtsf2_sse,
        sqrtsf2_i387, sqrtdf2_mixed, sqrtdf2_sse, sqrtdf2_i387,
        sqrtextendsfdf2_i387, sqrtxf2, sqrtextendsfxf2_i387,
        sqrtextenddfxf2_i387): Added amdfam10_decode.

        * config/i386/athlon.md (athlon_idirect_amdfam10,
        athlon_ivector_amdfam10, athlon_idirect_load_amdfam10,
        athlon_ivector_load_amdfam10, athlon_idirect_both_amdfam10,
        athlon_ivector_both_amdfam10, athlon_idirect_store_amdfam10,
        athlon_ivector_store_amdfam10): New define_insn_reservation.
        (athlon_idirect_loadmov, athlon_idirect_movstore): Added
        amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_call_amdfam10,
        athlon_pop_amdfam10, athlon_lea_amdfam10): New
        define_insn_reservation.
        (athlon_branch, athlon_push, athlon_leave_k8, athlon_imul_k8,
        athlon_imul_k8_DI, athlon_imul_mem_k8, athlon_imul_mem_k8_DI,
        athlon_idiv, athlon_idiv_mem, athlon_str): Added amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_sseld_amdfam10,
        athlon_mmxld_amdfam10, athlon_ssest_amdfam10,
        athlon_mmxssest_short_amdfam10): New define_insn_reservation.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_sseins_amdfam10): New
        define_insn_reservation.
        * config/i386/i386.md (sseins): Added sseins to define_attr type
        and define_attr unit.
        * config/i386/sse.md: Set type attribute to sseins for insertq
        and insertqi.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (sselog_load_amdfam10, sselog_amdfam10,
        ssecmpvector_load_amdfam10, ssecmpvector_amdfam10,
        ssecomi_load_amdfam10, ssecomi_amdfam10,
        sseaddvector_load_amdfam10, sseaddvector_amdfam10): New
        define_insn_reservation.
        (ssecmp_load_k8, ssecmp, sseadd_load_k8, seadd): Added amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (cvtss2sd_load_amdfam10,
        cvtss2sd_amdfam10, cvtps2pd_load_amdfam10, cvtps2pd_amdfam10,
        cvtsi2sd_load_amdfam10, cvtsi2ss_load_amdfam10,
        cvtsi2sd_amdfam10, cvtsi2ss_amdfam10, cvtsd2ss_load_amdfam10,
        cvtsd2ss_amdfam10, cvtpd2ps_load_amdfam10, cvtpd2ps_amdfam10,
        cvtsX2si_load_amdfam10, cvtsX2si_amdfam10): New
        define_insn_reservation.

        * config/i386/sse.md (cvtsi2ss, cvtsi2ssq, cvtss2si,
        cvtss2siq, cvttss2si, cvttss2siq, cvtsi2sd, cvtsi2sdq,
        cvtsd2si, cvtsd2siq, cvttsd2si, cvttsd2siq,
        cvtpd2dq, cvttpd2dq, cvtsd2ss, cvtss2sd,
        cvtpd2ps, cvtps2pd): Added amdfam10_decode attribute.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_ssedivvector_amdfam10,
        athlon_ssedivvector_load_amdfam10, athlon_ssemulvector_amdfam10,
        athlon_ssemulvector_load_amdfam10): New define_insn_reservation.
        (athlon_ssediv, athlon_ssediv_load_k8, athlon_ssemul,
        athlon_ssemul_load_k8): Added amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/i386.h (TARGET_SSE_UNALIGNED_MOVE_OPTIMAL): New macro.
        (x86_sse_unaligned_move_optimal): New variable.

        * config/i386/i386.c (x86_sse_unaligned_move_optimal): Enable for
        m_AMDFAM10.
        (ix86_expand_vector_move_misalign): Add code to generate movupd/movups
        for unaligned vector SSE double/single precision loads for AMDFAM10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/i386.h (TARGET_AMDFAM10): New macro.
        (TARGET_CPU_CPP_BUILTINS): Add code for amdfam10.
        Define TARGET_CPU_DEFAULT_amdfam10.
        (TARGET_CPU_DEFAULT_NAMES): Add amdfam10.
        (processor_type): Add PROCESSOR_AMDFAM10.

        * config/i386/i386.md: Add amdfam10 as a new cpu attribute to match
        processor_type in config/i386/i386.h.
        Enable imul peepholes for TARGET_AMDFAM10.

        * config.gcc: Add support for --with-cpu option for amdfam10.

        * config/i386/i386.c (amdfam10_cost): New variable.
        (m_AMDFAM10): New macro.
        (m_ATHLON_K8_AMDFAM10): New macro.
        (x86_use_leave, x86_push_memory, x86_movx, x86_unroll_strlen,
        x86_cmove, x86_3dnow_a, x86_deep_branch, x86_use_simode_fiop,
        x86_promote_QImode, x86_integer_DFmode_moves,
        x86_partial_reg_dependency, x86_memory_mismatch_stall,
        x86_accumulate_outgoing_args, x86_arch_always_fancy_math_387,
        x86_sse_partial_reg_dependency, x86_sse_typeless_stores,
        x86_use_ffreep, x86_use_incdec, x86_four_jump_limit,
        x86_schedule, x86_use_bt, x86_cmpxchg16b, x86_pad_returns):
        Enable/disable for amdfam10.
        (override_options): Add amdfam10_cost to processor_target_table.
        Set up PROCESSOR_AMDFAM10 for amdfam10 entry in
        processor_alias_table.
        (ix86_issue_rate): Add PROCESSOR_AMDFAM10.
        (ix86_adjust_cost): Add code for amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/i386.opt: Add new Advanced Bit Manipulation (-mabm)
        instruction set feature flag. Add new (-mpopcnt) flag for popcnt
        instruction. Add new SSE4A (-msse4a) instruction set feature flag.
        * config/i386/i386.h: Add builtin definition for SSE4A.
        * config/i386/i386.md: Add support for ABM instructions
        (popcnt and lzcnt).
        * config/i386/sse.md: Add support for SSE4A instructions
        (movntss, movntsd, extrq, insertq).
        * config/i386/i386.c: Add support for ABM and SSE4A builtins.
        Add -march=amdfam10 flag.
        * config/i386/ammintrin.h: Add support for SSE4A intrinsics.
        * doc/invoke.texi: Add documentation on flags for sse4a, abm, popcnt
        and amdfam10.
        * doc/extend.texi: Add documentation for SSE4A builtins.

2007-02-05  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (constantpool_mem_p): Skip over SUBREGs.

2007-02-05  Richard Guenther  <rguenther@suse.de>

        * tree-vectorizer.h (vectorizable_function): Add argument type
        argument, change return type.
        * tree-vect-patterns.c (vect_recog_pow_pattern): Adjust caller.
        * tree-vect-transform.c (vectorizable_function): Handle extra
        argument, return vectorized function decl.
        (build_vectorized_function_call): Remove.
        (vectorizable_call): Handle calls with result and argument types
        differing.  Handle loop vectorization factor correctly.
        * targhooks.c (default_builtin_vectorized_function): Adjust for
        extra argument.
        * targhooks.h (default_builtin_vectorized_function): Likewise.
        * target.h (builtin_vectorized_function): Add argument type
        argument.
        * config/i386/i386.c (ix86_builtin_vectorized_function): Handle
        extra argument, allow vectorizing of lrintf.
        * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION): Adjust
        documentation of target hook.

2007-02-05  Hans-Peter Nilsson  <hp@axis.com>

        PR target/30665
        * config/cris/cris.md ("*andsi_movu", "*andsi_clear", "*andhi_movu")
        ("*andhi_clear", andu (casesi+45)): For size-changed operand where
        memory is allowed, require !side_effects_p, not just !MEM_VOLATILE_P.

2007-02-05  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_unary) <REAL_PART>: Test for availability of
        BUILT_IN_COS before simplifying REAL_PART(CEXPI)) to COS.
        <IMAG_PART>: Likewise, check for availability of BUILT_IN_SIN.
        * builtins.c (fold_builtin_sincos): Check for TARGET_C99_FUNCTIONS
        before canonicalizing sincos to cexpi.
        (fold_builtin_cexp): Likewise, for canonicalizing cexp to cexpi.

2007-02-05  Roger Sayle  <roger@eyesopen.com>

        * config/alpha/alpha.c (alpha_add_builtins): New Helper function.
        Set TREE_READONLY and TREE_NOTHROW directly, not via attributes.
        (alpha_init_builtins): Use alpha_add_builtins to process tables.

2007-02-05  Roger Sayle  <roger@eyesopen.com>

        * mips-tfile.c (initialize_init_file): Correct endianness test.

2007-02-05  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.md (pushdi-1, pushdi, movsi+1): Don't use
        the 'y' constraint.

2007-02-05  Richard Sandiford  <richard@codesourcery.com>

        * dwarf2out.c (dwarf2out_frame_debug_expr): Record the register
        saves in a PARALLEL before the register assignments.

2007-02-05  Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi (DWARF_ALT_FRAME_RETURN_COLUMN): Do not require
        DWARF_FRAME_RETURN_COLUMN to be a general register.
        * dwarf2out.c (init_return_column_size): New function, split from...
        (expand_builtin_init_dwarf_reg_sizes): ...here.  Allow both
        DWARF_FRAME_RETURN_COLUMN and DWARF_ALT_FRAME_RETURN_COLUMN
        to be nongeneral registers.
        * config/m68k/m68k.h (DWARF_FRAME_REGNUM): Only map FP and
        integer registers.
        (DWARF_FRAME_REGISTERS, DWARF_FRAME_RETURN_COLUMN): Define.
        (DWARF_ALT_FRAME_RETURN_COLUMN): Define.

2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgcleanup.c (try_optimize_cfg): Avoid removing ENTRY_BLOCK_PTR.

2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloopmanip.c (loop_delete_branch_edge): Removed.
        (remove_path): Use can_remove_branch_p and remove_branch instead
        of loop_delete_branch_edge.
        * tree-ssa-loop-manip.c (scale_dominated_blocks_in_loop): New function.
        (tree_transform_and_unroll_loop): Remove dead branches immediately.
        Update profile using scale_dominated_blocks_in_loop.
        * cfghooks.c (can_remove_branch_p, remove_branch): New functions.
        * cfghooks.h (struct cfg_hooks): Add can_remove_branch_p.
        (can_remove_branch_p, remove_branch): Declare.
        * tree-cfg.c (tree_can_remove_branch_p): New function.
        (tree_cfg_hooks): Add tree_can_remove_branch_p.
        * cfgrtl.c (rtl_can_remove_branch_p): New function.
        (rtl_cfg_hooks, cfg_layout_rtl_cfg_hook): Add rtl_can_remove_branch_p.

2007-02-05  Jan Hubicka  <jh@suse.cz>

        PR middle-end/30696
        * ipa-inline.c (cgraph_clone_inlined_nodes): When there are unanalyzed
        nodes in cgraph, don't remove offline copy of the function.

2007-02-04  Jan Hubicka  <jh@suse.cz>

        * tree-sra.c (sra_walk_expr): Add linebreaks. BITFIELD_REFs into
        vectors might cause maybe_lookup_element_for_expr to be called
        on non-sra-candidate.

2007-02-04  Kazu Hirata  <kazu@codesourcery.com>

        * config/bfin/bfin-modes.def, config/bfin/bfin.c,
        config/bfin/bfin.md, config/bfin/predicates.md: Follow
        spelling conventions.

2007-02-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30636
        * fold-const.c (try_move_mult_to_index): Make sure to not
        overflow one dimension of a multi-dimensional array access.

2007-02-04  Jan Hubicka  <jh@suse.cz>

        * passes.c (init_optimization_passes): Reindent.

2007-02-04  Jan Hubicka  <jh@suse.cz>
            Eric Botcazou  <ebotcazou@adacore.com>

        * tree-optimize.c (has_abnormal_outgoing_edge_p): Move to...
        (execute_fixup_cfg): Break out the abnormal goto code.
        * tree-inline.c (has_abnormal_outgoing_edge_p): ...here.
        (make_nonlocal_label_edges): Move here from execute_fixup_cfg.
        (optimize_inline_calls): Call make_nonlocal_label_edges.

2007-02-04  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Return
        true when something was changed.
        (rename_ssa_copies): When something was changed, do
        TODO_remove_unused_locals.
        * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
        add TODO_remove_unused_locals when instruction was removed.

2007-02-04  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (try_inline): Improve debug output; work on already
        inline edges too.
        (cgraph_decide_inlining_incrementally): Indent; improve debug output;
        call try_inline for already inlined edges too when flattening;
        inline also functions that make callee growth but overall unit size
        reduce.

2007-02-04  Kazu Hirata  <kazu@codesourcery.com>

        * config/m32c/bitops.md, config/m32c/jump.md,
        config/m32c/m32c.c, config/m32c/m32c.h, config/m32r/m32r.c,
        config/m32r/m32r.h, config/m32r/m32r.md,
        config/m32r/predicates.md, config/m68hc11/larith.asm,
        config/m68hc11/m68hc11.c, config/m68hc11/m68hc11.h,
        config/m68k/m68k.h, config/mcore/mcore.md, config/mips/4k.md,
        config/mips/mips-protos.h, config/mips/mips.c,
        config/mips/mips.h, config/mips/mips.md, config/mips/mips16.S,
        config/mn10300/mn10300.h, config/mn10300/predicates.md,
        config/mt/mt.c, config/mt/mt.h, config/mt/mt.md: Follow
        spelling conventions.

        * config/v850/v850.c, config/v850/v850.h, config/v850/v850.md:
        Follow spelling conventions.

2007-02-03  Douglas Gregor  <doug.gregor@gmail.com>

        * c-opts.c (c_common_post_options): If C++0x mode is enabled, don't
        warn about C++0x compatibility.

2007-02-04  Kazu Hirata  <kazu@codesourcery.com>

        * config/h8300/h8300.c, config/h8300/h8300.h,
        config/h8300/h8300.md: Follow spelling conventions.

2007-02-03  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/30667
        * combine.c (try_combine): Do not substitute source operand
        with constants wider than 2 * HOST_BITS_PER_WIDE_INT.

2007-02-03  Jan Hubicka  <jh@suse.cz>

        PR gcov-profile/30650
        * value-prof.c (stringop_block_profile): Fix handling of size counter;
        do not divide by zero for never executed counters.
        (tree_find_values_to_profile): Fix counters.
        * gcov-ui.h (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): Fix comments.

2007-02-03  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (simple_move_operand): New static function,
        broken out of simple_move.  Reject LABEL_REF, SYMBOL_REF, and HIGH
        operands.
        (simple_move): Call simple_move_operand.
        (find_decomposable_subregs): Add special handling of MEMs.
        (can_decompose_p): Rename from cannot_decompose_p.  Reverse
        meaning of return value.  If we see a hard register, test whether
        it can store a word_mode value.  Change all callers.

2007-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md (addvdi3, addvsi3, subvdi3, subvsi3, negvdi2, negvsi2): New
        ftrapv insns and expanders.
        (subdi3): Change define_expand operand 1 to arith11_operand, and
        operand 2 to reg_or_0_operand.  Change constraints of 64-bit insn
        pattern to handle reg_or_0 operands.  Revise 32-bit insn pattern to
        handle 11-bit constants and reg_or_0 operands in operands 1 and 2,
        respectively.

        PR middle-end/30174
        * varasm.c (notice_global_symbol): Treat global objects as weak when
        flag_shlib is true.

2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * emit-rtl.c (dconstpi): Delete.
        (dconstsqrt2): New.
        (init_emit_once): Delete dconstpi and init dconstsqrt2.
        * real.h (dconstpi): Delete.
        (dconstsqrt2): New.
        * builtins.c (fold_builtin_cabs): Use dconstsqrt2.
        (fold_builtin_hypot): Likewise.

2007-02-03  Tom Tromey  <tromey@redhat.com>

        PR driver/30246
        * gcc.c (cpp_unique_options): Any of -ggdb3, -gstabs3,
        -gcoff3, -gxcoff3, -gvms3 implies -dD.

2007-02-03  Kazu Hirata  <kazu@codesourcery.com>

        * c-decl.c, config/avr/avr.c, config/avr/avr.h,
        config/m68k/m68k.c, config/m68k/netbsd-elf.h,
        config/mn10300/mn10300.c, config/pdp11/pdp11.h,
        config/rs6000/cell.md, config/rs6000/darwin.h,
        config/sh/sh.md, config/sh/sh4-300.md, config/spu/spu.c,
        config/spu/spu.md, cselib.c, expr.c, haifa-sched.c, hwint.h,
        jump.c, reload.c, sched-deps.c, sched-int.h, tree-inline.c,
        tree-profile.c, tree-ssa-live.h, tree-vrp.c: Fix comment
        typos.  Follow spelling conventions.
        * doc/invoke.texi: Follow spelling conventions.

2007-02-03  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_relational_operation_1): Implement some
        canonicalization transformations that attempt to simplify integer
        constant comparisons to become comparisons against zero.

2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_cabs): Fold cabs(x+xi) into
        fabs(x)*sqrt(2).
        * fold-const.c (fold_binary): Fix comment typos.  Fold complex
        (x,0)-(0,y) into (x,-y).  Likewise (0,y)-(x,0) into (-x,y).

2007-02-02  Mike Stump  <mrs@apple.com>

        * config/darwin9.h (DARWIN_LINKER_GENERATES_ISLANDS): Add.
        * config/rs6000/rs6000.c (DARWIN_GENERATE_ISLANDS): Add.
        (output_call): Use DARWIN_GENERATE_ISLANDS to decide when to
        generate a branch island.

2007-02-02  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (smalloffset_mem_p): Use BASE_REG_P.
        (xtensa_legitimate_address_p): New.
        (xtensa_legitimize_address): New.
        (xtensa_output_addr_const_extra): New.
        * config/xtensa/xtensa.h (REG_OK_STRICT_FLAG): Define.
        (BASE_REG_P): New.
        (REG_OK_FOR_BASE_P): Use BASE_REG_P.
        (GO_IF_LEGITIMATE_ADDRESS): Move code to xtensa_legitimate_address_p.
        (LEGITIMIZE_ADDRESS): Move code to xtensa_legitimize_address.
        (OUTPUT_ADDR_CONST_EXTRA): Move code to xtensa_output_addr_const_extra.
        * config/xtensa/xtensa-protos.h (xtensa_legitimate_address_p): New.
        (xtensa_legitimize_address): New.
        (xtensa_output_addr_const_extra): New.

2007-02-02  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/ia64.c (ia64_print_operand): Fix compare strings.

2007-02-02  Ian Lance Taylor  <iant@google.com>

        * expmed.c (expand_divmod): Add comment.

2007-02-02  Kazu Hirata  <kazu@codesourcery.com>

        * emit-rtl.c (renumber_insns): Remove.
        * flags.h: Remove the extern for flag_renumber_insns.
        * rtl.h: Remove the prototype for renumber_insns.
        * toplev.c (flag_renumber_insns): Remove.

2007-02-02  Hui-May Chang  <hm.chang@apple.com>

        Revert for x86 darwin:
        2005-06-19  Uros Bizjak  <uros@kss-loka.si>

        * config/i386/i386.c (ix86_function_arg_regno_p): Put back the
        code before the following patch under TARGET_MACHO.
        (ix86_function_value_regno_p): Likewise.

2007-02-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (negate_expr_p, fold_negate_expr): Handle
        COMPLEX_EXPR.

2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        PR target/29682
        * config/ia64/ia64.c (ia64_speculate_insn): Restrict to memory loads to
        general or fp registers.  Add comments.
        * config/ia64/ia64.md (reg_pred_prefix): Add comment.

2007-02-02  Paolo Bonzini  <bonzini@gnu.org>

        * pointer-set.c (insert_aux): Only return insertion slot.
        (pointer_set_insert): Adjust.
        (pointer_set_traverse, struct pointer_map_t, pointer_map_create,
        pointer_map_destroy, pointer_map_insert, pointer_map_contains,
        pointer_map_traverse): New.
        * pointer-set.h (pointer_set_traverse, struct pointer_map_t,
        pointer_map_create,  pointer_map_destroy, pointer_map_insert,
        pointer_map_contains, pointer_map_traverse): Declare.

2007-02-02  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/30473
        * builtins.c (fold_builtin_sprintf): Do not attempt to optimize
        sprintf (str, "%s").  Do not optimize sprintf (str, "nopercent", p++).

2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * sched-int.h (ds_to_dk, dk_to_ds): Declare functions.

        (struct _dep): New type.
        (dep_t): New typedef.
        (DEP_PRO, DEP_CON, DEP_KIND): New access macros.
        (DEP_STATUS): New access macro.  The macro with the same name was
        renamed to DEP_LINK_STATUS.
        (dep_init): Declare function

        (struct _dep_link): New type.
        (dep_link_t): New typedef.
        (DEP_LINK_NODE, DEP_LINK_NEXT, DEP_LINK_PREV_NEXTP): New access macros.
        (DEP_LINK_DEP, DEP_LINK_PRO, DEP_LINK_CON, DEP_LINK_KIND): New macros.
        (DEP_LINK_STATUS): New macro.
        (debug_dep_links): New debug function.

        (struct _deps_list): New type.
        (deps_list_t): New typedef.
        (DEPS_LIST_FIRST): New access macro.
        (FOR_EACH_DEP_LINK): New cycle macro.
        (create_deps_list, free_deps_list, delete_deps_list): Declare
        functions.
        (deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
        (find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
        (copy_deps_list_change_con): Ditto.

        (move_dep_link): Declare function.

        (struct _dep_node): New type.
        (dep_node_t): New typedef.
        (DEP_NODE_BACK, DEP_NODE_DEP, DEP_NODE_FORW): New access macros.

        (struct haifa_insn_data.back_deps): New field to hold backward
        dependencies of the insn.
        (struct haifa_insn_data.depend): Rename to forw_deps.  Change its type
        to deps_list_t.
        (struct haifa_insn_data.resolved_deps): Rename to resolved_back_deps.
        Change its type to deps_list_t.
        (INSN_BACK_DEPS): New access macro to use instead of LOG_LINKS.
        (INSN_DEPEND): Rename to INSN_FORW_DEPS.
        (RESOLVED_DEPS): Rename to INSN_RESOLVED_BACK_DEPS.

        (INSN_COST): Move to haifa-sched.c.  Use insn_cost () instead.

        (DEP_STATUS): Rename to DEP_LINK_STATUS.  Fix typo in the comment.

        (add_forw_dep, delete_back_forw_dep, insn_cost): Update declaration and
        all callers.
        (dep_cost): Declare.

        * sched-deps.c (CHECK): New macro to (en/dis)able sanity checks.
        (ds_to_dk, dk_to_ds): New functions.

        (init_dep_1): New static function.
        (init_dep): New function.
        (copy_dep): New static function.

        (dep_link_consistent_p, attach_dep_link, add_to_deps_list): New static
        functions.
        (detach_dep_link): New static function.
        (move_dep_link): New function.

        (dep_links_consistent_p, dump_dep_links): New static functions.
        (debug_dep_links): New debugging function.

        (deps_obstack, dl_obstack, dn_obstack): New static variables.

        (alloc_deps_list, init_deps_list): New static functions.
        (create_deps_list): New function.
        (clear_deps_list): New static function.
        (free_deps_list, delete_deps_list, deps_list_empty_p): New functions.
        (deps_list_consistent_p, dump_deps_list): New static functions.
        (debug_deps_list): New function.
        (add_back_dep_to_deps_list, find_link_by_pro_in_deps_list): New
        functions.
        (find_link_by_con_in_deps_list, copy_deps_list_change_con): Ditto.

        (maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Update to
        use new scheduler dependencies lists.
        (add_back_dep, delete_all_dependences, fixup_sched_groups): Ditto.
        (sched_analyze): Ditto.  Initialize dependencies lists.
        (add_forw_dep, compute_forward_dependences): Update to use new
        scheduler dependencies lists.

        (init_dependency_caches): Init deps_obstack.
        (free_dependency_caches): Free deps_obstack.

        (adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Update to use
        new scheduler dependencies lists.
        (delete_forw_dep, add_or_update_back_forw_dep): Ditto.
        (add_back_forw_dep, delete_back_forw_dep): Ditto.

        * sched-rgn.c (set_spec_fed, find_conditional_protection, is_pfree):
        Update to use new scheduler dependencies lists.
        (is_conditionally_protected, is_prisky, add_branch_dependences): Ditto.
        (debug_dependencies): Ditto.
        (schedule_region): Update comments.

        * sched-ebb.c (earliest_block_with_similiar_load): Update to use new
        scheduler dependencies lists.
        (schedule_ebb): Update comments.

        * rtl.def (DEPS_LIST): Remove.

        * lists.c (unused_deps_list): Remove.
        (free_list): Update assertions.

        (alloc_DEPS_LIST, free_DEPS_LIST_list, free_DEPS_LIST_node): Remove.
        (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.

        * rtl.h (free_DEPS_LIST_list, alloc_DEPS_LIST): Remove declarations.
        (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.

        * haifa-sched.c (comments): Update.
        (insn_cost1): Remove.  Inline the code into insn_cost ().
        (insn_cost): Update to use new scheduler dependencies lists.  Move
        processing of the dependency cost to dep_cost ().
        (dep_cost): New function.  Use it instead of insn_cost () when
        evaluating cost of the dependency.  Use compatible interface to
        interact with the target.
        (priority): Update to use new scheduler dependencies lists.
        (rank_for_schedule): Ditto.  Optimize heuristic that prefers the insn
        with greater number of insns that depend on the insn.
        (schedule_insn): Update to use new scheduler dependencies lists.  Add
        code to free backward dependencies lists.  Inline and optimize code
        from resolve_dep () - see PR28071.
        (ok_for_early_queue_removal): Update to use new scheduler dependencies
        lists.  Update call to targetm.sched.is_costly_dependence hook.

        (fix_inter_tick, try_ready, fix_tick_ready): Update to use new
        scheduler dependencies lists.

        (resolve_dep): Remove.  Move the logic to schedule_insn ().
        (init_h_i_d): Initialize dependencies lists.

        (process_insn_depend_be_in_spec): Rename to
        process_insn_forw_deps_be_in_spec.  Update to use new scheduler
        dependencies lists.
        (add_to_speculative_block, create_check_block_twin, fix_recovery_deps):
        Update to use new scheduler dependencies lists.
        (clear_priorities, calc_priorities, add_jump_dependencies): Ditto.

        * ddg.c (create_ddg_dependence, create_ddg_dep_no_link): Update to use
        new scheduler dependencies lists.
        (build_intra_loop_deps): Ditto.

        * target.h (struct _dep): Declare to use in
        gcc_target.sched.is_costly_dependence.
        (struct gcc_target.sched.adjust_cost): Fix typo.
        (struct gcc_target.sched.is_costly_dependence): Change signature to use
        single dep_t parameter instead of an equivalent triad.
        (struct gcc_target.sched.adjust_cost_2): Remove.

        * target-def.h (TARGET_SCHED_ADJUST_COST_2): Remove.

        * reg-notes.def (DEP_TRUE, DEP_OUTPUT, DEP_ANTI): Update comments.

        * doc/tm.texi (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Update
        documentation.
        (TARGET_SCHED_ADJUST_COST_2): Remove documentation.

        * doc/rtl.texi (LOG_LINKS): Remove part about instruction scheduler.
        (REG_DEP_TRUE): Document.

        * config/ia64/ia64.c (ia64_adjust_cost_2): Rename to ia64_adjust_cost.
        Change signature to correspond to the targetm.sched.adjust_cost hook.
        Update use in TARGET_SCHED_ADJUST_COST_2.
        (TARGET_SCHED_ADJUST_COST_2): Rename to TARGET_SCHED_ADJUST_COST.
        (ia64_dependencies_evaluation_hook, ia64_dfa_new_cycle): Update to use
        new scheduler dependencies lists.
        (ia64_gen_check): Ditto.

        * config/mips/mips.c (vr4130_swap_insns_p): Update to use new scheduler
        dependencies lists.

        * config/rs6000/rs6000.c (rs6000_is_costly_dependence): Change
        signature to correspond to the targetm.sched.is_costly_dependence hook.
        (is_costly_group): Update to use new scheduler dependencies lists.

        * config/spu/spu.c (spu_sched_adjust_cost): Use insn_cost () function
        instead of INSN_COST () macro.

2007-02-01  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (resolve_clobber): Handle a subreg of a concatn.

2007-02-01  Guy Martin  <gmsoft@gentoo.org>

        * pa.md (tp_load): Correct mfctl instruction syntax.

2007-02-01  Geoffrey Keating  <geoffk@apple.com>

        * config/rs6000/rs6000.c (rs6000_stack_info): Correct
        altivec_padding_size calculation on AIX.  Improve comment, add
        assert to verify that it's right.

        * config/rs6000/darwin.h (MD_UNWIND_SUPPORT): Don't define for
        64-bit.

2007-2-01  Seongbae Park  <seongbae.park@gmail.com>

        PR inline-asm/28686
        * global.c (global_alloc): Add mising initialization of
        ELIMINABLE_REGSET.

2007-02-01  Roger Sayle  <roger@eyesopen.com>

        * alias.c (init_alias_analysis): Correct whitespace.
        * bb-reorder.c (fix_edges_for_rarely_executed_code,
        partition_hot_cold_basic_blocks): Likewise.
        * builtins.c (expand_builtin_printf, expand_builtin_fprintf,
        expand_builtin_sprintf, fold_builtin_carg, fold_builtin_sprintf,
        maybe_emit_sprintf_chk_warning, fold_builtin_sprintf_chk,
        fold_builtin_snprintf_chk, fold_builtin_printf,
        fold_builtin_fprintf, do_mpfr_ckconv, do_mpfr_arg1, do_mpfr_arg2,
        do_mpfr_arg3, do_mpfr_sincos): Likewise.
        * cfgcleanup.c (cleanup_cfg): Likewise.
        * cfgexpand.c (tree_expand_cfg): Likewise.
        * fold-const.c (fold_binary) <RDIV_EXPR>: Likewise.
        * function.c (get_next_funcdef_no): Likewise.
        * gengtype.c (main): Likewise.
        * genmodes.c (main): Likewise.
        * gcse.c (bypass_conditional_jumps, print_ldst_list): Likewise.
        * haifa-sched.c (schedule_block, extend_h_i_d): Likewise.
        * ifcvt.c (noce_emit_move_insn): Likewise.
        * modulo-sched.c (generate_prolog_epilog, sms_schedule_by_order):
        Likewise.
        * stor-layout.c (get_best_mode): Likewise.
        * tree-ssa-loop-niter.c (get_val_for): Likewise.
        * tree-ssa-structalias.c (get_varinfo, get_varinfo_fc,
        scc_visit, do_ds_constraint, do_complex_constraint, label_visit,
        perform_var_substitution, solve_graph): Likewise.
        * tree-vrp.c (vrp_finalize): Likewise.

2007-02-01  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (simplify_gen_subreg_concatn): If we ask for the
        high part of a paradoxical subreg, return a constant zero.

2007-02-01  Zdenek Dvorak <dvorakz@suse.cz>

        * toplev.c (lang_dependent_init): Call init_set_costs.
        * loop-init.c (loop_optimizer_init): Do not call init_set_costs.

2007-02-01  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30656
        * fold-const.c (fold_negate_expr): Allow negating a
        constant if overflow does not change.

2007-02-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/c-tree.texi (Expression trees): Improve markup.
        * doc/tm.texi (Register Classes, Addressing Modes)
        (Floating Point): Fix spacing after abbreviations.  Fix some
        typos.

2007-02-01  Ben Elliston  <bje@au.ibm.com>

        * doc/invoke.texi: Replace "bugfix" with "bug fix" throughout.
        * doc/contrib.texi: Likewise.
        * doc/install.texi: Likewise.

2007-01-31  Richard Henderson  <rth@redhat.com>
            Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c: New file.
        * rtl.def (CONCATN): Define.
        * passes.c (init_optimization_passes): Add pass_lower_subreg and
        pass_lower_subreg2.
        * emit-rtl.c (update_reg_offset): New static function, broken out
        of gen_rtx_REG_offset.
        (gen_rtx_REG_offset): Call update_reg_offset.
        (gen_reg_rtx_offset): New function.
        * regclass.c: Revert patch of 2006-03-05, restoring
        reg_scan_update.
        (clear_reg_info_regno): New function.
        * dwarf2out.c (concatn_loc_descriptor): New static function.
        (loc_descriptor): Handle CONCATN.
        * common.opt (fsplit_wide_types): New option.
        * opts.c (decode_options): Set flag_split_wide_types when
        optimizing.
        * timevar.def (TV_LOWER_SUBREG): Define.
        * rtl.h (gen_reg_rtx_offset): Declare.
        (reg_scan_update): Declare.
        * regs.h (clear_reg_info_regno): Declare.
        * tree-pass.h (pass_lower_subreg): Declare.
        (pass_lower_subreg2): Declare.
        * doc/invoke.texi (Option Summary): List -fno-split-wide-types.
        (Optimize Options): Add -fsplit-wide-types to -O1 list.  Document
        -fsplit-wide-types.
        * doc/rtl.texi (Regs and Memory): Document concat and concatn.
        * Makefile.in (OBJS-common): Add lower-subreg.o.
        (lower-subreg.o): New target.

2007-01-31  Kazu Hirata  <kazu@codesourcery.com>

        * config/sh/sh.h (HAVE_SECONDARY_RELOADS): Remove.

2007-01-31  Anatoly Sokolov <aesok@post.ru>

        PR target/19087
        * config/avr/avr.c (DWARF2_ADDR_SIZE): Define.

2007-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR middle-end/29335
        * builtins.c (fold_builtin_sqrt): Use MPFR for constant args.

2007-01-31  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloop.h: Include vec-prim.h.
        (enum li_flags): Remove LI_ONLY_OLD.
        (loop_iterator): Changed.
        (fel_next, fel_init): Iterate over loop tree.
        (FOR_EACH_LOOP_BREAK): New macro.
        * loop-unswitch.c (unswitch_loops): Do not pass LI_ONLY_OLD to
        FOR_EACH_LOOP.
        * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Ditto.
        * modulo-sched.c (sms_schedule): Ditto.
        * tree-vectorizer.c (vectorize_loops): Ditto.
        * doc/loop.texi: Update information on loop numbering and behavior of
        FOR_EACH_LOOP wrto new loops.
        * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
        add_to_evolution_1): Test nestedness of loops instead of comparing
        their numbers.
        * tree-chrec.c (chrec_fold_plus_poly_poly,
        chrec_fold_multiply_poly_poly, chrec_evaluate,
        hide_evolution_in_other_loops_than_loop, chrec_component_in_loop_num,
        reset_evolution_in_loop): Ditto.
        * Makefile.in (CFGLOOP_H): Add vecprim.h dependency.

2007-01-31  Dirk Mueller  <dmueller@suse.de>

        * c-common.c (warn_about_parentheses): Separate warning about
        un-parenthized sequence of comparison operators from the one
        which is supposed to warn about x <= y <= z.

2007-01-31  Uros Bizjak  <ubizjak@gmail.com>

        * optabs.h (enum optab_index): Add new OTI_isinf.
        (isinf_optab): Define corresponding macro.
        * optabs.c (init_optabs): Initialize isinf_optab.
        * genopinit.c (optabs): Implement isinf_optab using isinf?f2
        patterns.
        * builtins.c (mathfn_built_in): Handle BUILT_IN_ISINF{,F,L}.
        (expand_builtin_interclass_mathfn): Expand BUILT_IN_ISINF{,F,L}
        using isinf_optab.
        (expand_builtin): Expand BUILT_IN_ISINF{,F,L} using
        expand_builtin_interclass_mathfn.
        * reg_stack.c (subst_stack_regs_pat): Handle UNSPEC_FXAM.
        * config/i386/i386.md (UNSPEC_FXAM): New constant.
        (fxam<mode>2_i387): New insn pattern.
        (isinf<mode>2) New expander to implement isinf, isinff and isinfl
        built-in functions as x87 inline asm.

2007-01-31  Kazu Hirata  <kazu@codesourcery.com>

        * gcc/config/arm/unwind-arm.h (_sleb128_t, _uleb128_t): New.

2007-01-30  Eric Christopher  <echristo@apple.com>

        * config.gcc: Add geode.

2007-01-31  Kazu Hirata  <kazu@codesourcery.com>

        * cgraphunit.c, config/arm/arm.c, config/m68k/m68k.c,
        ipa-inline.c, tree-profile.c, tree-ssa-live.c,
        tree-ssa-math-opts.c, tree-ssanames.c, tree-vect-analyze.c,
        value-prof.c: Fix comment typos.

2007-01-30  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/24745
        * doc/invoke.texi (Wpointer-arith): Document warning.

2007-01-30  Janis Johnson  <janis187@us.ibm.com>

        * doc/extend.texi (Decimal Floating Types): Remove decfloat.h from
        the list of discrepancies from the draft TR.

2007-01-30  Dirk Mueller  <dmueller@suse.de>

        PR c++/30601
        * doc/invoke.texi (-Wreturn-type): Update description to
        match new behavior.

2007-01-30  Richard Sandiford  <richard@codesourcery.com>

        * cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.

2007-01-30  Uros Bizjak  <ubizjak@gmail.com>

        * builtins.c (expand_builtin_int_interclass_roundingfn): New function
        to handle optabs that operate on floating point input argument and
        output to integer output.
        (expand_builtin_mathfn) [BUILT_IN_ILOGB]: Move from here ...
        (expand_builtin_interclass_mathfn) [BUILT_IN_ILOGB]: ... to here.
        (expand_builtin): Expand BUILT_IN_ILOGB{,F,L} using
        expand_builtin_interclass_mathfn ().
        * config/i386/i386.md (fxtractxf3_i387): Rename from *fxtractxf3_i387.
        (ilogbsi2): Remove.
        (ilogbxf2, ilogb<mode>2): New expanders to implement ilogb, ilogbf and
        ilogbl built-in functions as x87 intrinsics.

2007-01-30  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27657
        * dwarf2out.c (reference_to_unused): Query varpool if the
        variable was output.

2007-01-30  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30313
        * passes.c (execute_one_pass): Reset in_gimple_form to not
        confuse non-unit-at-a-time mode.

2007-01-29  Roger Sayle  <roger@eyesopen.com>
            Richard Guenther  <rguenther@suse.de>

        * fold-const.c (round_up): Make HIGH an unsigned HOST_WIDE_INT to
        avoid undefined behaviour on overflow.  Use force_fit_type_double
        to construct the constant with the specified TREE_OVERFLOW.

2007-01-29  Janis Johnson  <janis187@us.ibm.com>

        * config/dfp-bit.c: Add parameterized support for fp exceptions.
        * config/dfp-bit.h: Ditto.

2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c-decl.c (pop_scope): Replace warnings with call to
        warn_for_unused_label.
        * c-common.h (warn_for_unused_label): Declare.
        * c-common.c (warn_for_unused_label): Define.

2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * tree-optimize.c (update_inlined_to_pointers): Delete unused
        function.

2007-01-29  Janis Johnson  <janis187@us.ibm.com>

        * Makefile.in (USER_H): Remove decfloat.h.
        * ginclude/decfloat.h: Delete, moving contents to ...
        * ginclude/float.h: Add support for decimal floating point,
        guarded by __STDC_WANT_DEC_FP__.

2007-01-29  Mike Stump  <mrs@apple.com>

        * doc/gccint.texi (Top): Rename Loop Representation to Loop
        Analysis and Representation to resolve case insensitive conflict.
        * doc/loop.texi (Loop Analysis and Representation): Likewise.

2007-01-28  Daniel Berlin  <dberlin@dberlin.org>

        * tree.h (struct tree_memory_tag): Add aliases member.
        (MTAG_ALIASES): New macro.
        * tree-ssa-alias.c (alias_bitmap_obstack): New variable.
        (add_may_alias): Remove pointer-set. Update for may_aliases being
        a bitmap.
        (mark_aliases_call_clobbered): Update for may_aliases being a
        bitmap.
        (compute_tag_properties): Ditto.
        (create_partition_for): Ditto.
        (compute_memory_partitions): Ditto.
        (dump_may_aliases_for): Ditto.
        (is_aliased_with): Ditto.
        (add_may_alias_for_new_tag): Ditto.
        (rewrite_alias_set_for): Rewrite for may_aliases being a bitmap.
        (compute_is_aliased): New function.
        (compute_may_aliases): Call compute_is_aliased).
        (init_alias_info): Initialize alias_bitmap_obstack.
        (union_alias_set_into): New function.
        (compute_flow_sensitive_aliasing): Use union_aliases_into.
        (have_common_aliases_p): Rewrite to take two bitmaps and use
        intersection.
        (compute_flow_insensitive_aliasing): Stop using pointer-sets.
        Update for bitmaps.
        (finalize_ref_all_pointers): Update for add_may_alias changes.
        (new_type_alias): Ditto.
        * tree-flow-inline.h (may_aliases): Return a bitmap.
        * tree-dfa.c (dump_variable): Check for MTAG_P'ness.
        * tree-ssa.c (verify_flow_insensitive_alias_info): Update for
        may_aliases being a bitmap.
        * tree-flow.h (struct var_ann_d): Remove may_aliases member.
        may_aliases now returns a bitmap.
        * tree-ssa-structalias.c (merge_smts_into): Update for may_aliases
        being a bitmap.
        * tree-ssa-operands.c (add_virtual_operand): Update for
        may_aliases being a bitmap.

2007-01-29  Daniel Berlin  <dberlin@dberlin.org>

        PR tree-optimization/30630
        * tree-ssa-structalias.c (do_complex_constraint): Mark correct
        variable as changed.

2007-01-29  Simon Martin  <simartin@users.sourceforge.net>

        PR c++/28266
        * gimplify.c (gimplify_target_expr): Make sure that the TARGET_EXPR is
        expanded only once even if an error occurs.

2007-01-29  Ben Elliston  <bje@au.ibm.com>

        * gcov-io.h (__gcov_indirect_call_profiler): Declare.
        (__gcov_average_profiler): Likewise.
        (__gcov_ior_profiler): Likewise.
        (__gcov_merge_ior): Likewise.

2007-01-28  Jan Hubicka  <jh@suse.cz>

        * builtins.c (expand_builtin_memset): Fix typo in my last patch.
        * value-prof.c (stringop_block_profile): Likewise.

2007-01-28  Jan Hubicka  <jh@suse.cz>

        * expr.c (emit_block_move_via_movmem, emit_block_move_via_libcall): Add
        variant handling histograms; add wrapper.
        (clear_storage_via_libcall): Export.
        (emit_block_move_hints): Break out from ...; add histograms.
        (emit_block_move): ... this one.
        (clear_storage_hints): Break out from ...; add histograms.
        (clear_storage): ... this one.
        (set_storage_via_memset): Handle histogram.
        * expr.h (emit_block_move_via_libcall, emit_block_move_hints): Declare.
        (clear_storage_hints, clear_storage_via_libcall): Declare.
        (set_storage_via_setmem): Update prototype.
        * doc/md.texi (movmem, setmem): Document new arguments.

        * value-prof.c (dump_histogram_value, tree_find_values_to_profile): Add
        new histograms.
        (stringop_block_profile): New global function.
        (tree_stringops_values_to_profile): Profile block size and alignment.
        * value-prof.h (enum hist_type): add HIST_TYPE_AVERAGE and
        HIST_TYPE_IOR.
        (struct profile_hooks): Add gen_average_profiler and gen_ior_profiler.
        (stringop_block_profile): Declare.
        * builtins.c: Include value-prof.h.
        (expand_builtin_memcpy, expand_builtin_memset): Pass block profile.
        * gcov-ui.h (GCOV_COUNTER_NAMES): Add new counter.
        (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): New constants.
        (GCOV_COUNTERS, GCOV_LAST_VALUE_COUNTER): Update.
        * profile.c (instrument_values): Add new counters.
        * cfgexpand.c (expand_gimple_basic_block): Propagate histograms to
        calls.
        * tree-profile.c (tree_average_profiler_fn, tree_ior_profiler_fn): New.
        (tree_init_edge_profiler): Build new profilers.
        (tree_gen_average_profiler, tree_gen_ior_profiler): New.
        (pass_tree_profile): Add dump.
        (tree_profile_hooks): Update.
        * Makefile.in (LIBGCOV): Add new constants.
        * libgcov.c (__gcov_merge_ior, __gcov_average_profiler,
        __gcov_ior_profiler): New.
        * i386.md (movmem/setmem expanders): Add new optional arguments.

2007-01-28  David Edelsohn  <edelsohn@gnu.org>

        * doc/md.texi (Standard Pattern Names): Document blockage pattern.

2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-unswitch.c: Include tree-inline.h.
        (tree_unswitch_single_loop): Pass eni_size_weights to
        tree_num_loop_insns.
        * tree-ssa-loop-manip.c: Include tree-inline.h.
        (can_unroll_loop_p): Pass eni_size_weights to
        tree_num_loop_insns.
        * tree-ssa-loop-ch.c (should_duplicate_loop_header_p):
        Pass eni_size_weights to estimate_num_insns.
        * tree.h (init_inline_once): Export.
        * toplev.c (backend_init): Call init_inline_once.
        * cgraphunit.c (cgraph_process_new_functions,
        cgraph_analyze_function): Pass eni_inlining_weights to
        estimate_num_insns.
        * ipa-inline.c (compute_inline_parameters): Ditto.
        * tree-ssa-loop-ivcanon.c (tree_num_loop_insns): Pass weights
        to estimate_num_insns.
        (try_unroll_loop_completely): Pass eni_size_weights to
        tree_num_loop_insns.
        * tree-eh.c (decide_copy_try_finally): Pass eni_size_weights
        ot estimate_num_insns.
        * tree-ssa-loop-prefetch.c: Include tree-inline.h.
        (loop_prefetch_arrays): Pass eni_time_weights to tree_num_loop_insns.
        * tree-inline.c (eni_inlining_weights, eni_size_weights,
        eni_time_weights): New variables.
        (init_inline_once): Initialize them.
        (struct eni_data): Mew.
        (estimate_num_insns_1, estimate_num_insns): Use weights.
        * tree-inline.h (struct eni_weights_d): New.
        (eni_inlining_weights, eni_size_weights, eni_time_weights): Declare.
        (estimate_num_insns): Declaration changed.
        * cfgloop.h (tree_num_loop_insns): Declaration changed.
        * Makefile.in (tree-ssa-loop-unswitch.o, tree-ssa-loop-prefetch.o,
        tree-ssa-loop-manip.o): Add TREE_INLINE_H dependency.

2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-data-ref.c (conflict_fn): Assert that the number of affine
        relations in the conflict function is valid.

2007-01-27  Ian Lance Taylor  <iant@google.com>

        * common.opt: Add fstrict-overflow.
        * opts.c (decode_options): Set flag_strict_overflow if -O2.
        * flags.h (TYPE_OVERFLOW_WRAPS): Define.
        (TYPE_OVERFLOW_UNDEFINED): Define.
        (TYPE_OVERFLOW_TRAPS): Define.  This replaces TYPE_TRAP_SIGNED.
        Replace all uses.
        * tree.h (TYPE_TRAP_SIGNED): Don't define.
        * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_UNDEFINED.
        (fold_negate_expr): Likewise.
        (make_range): Likewise.
        (extract_muldiv_1): Likewise.
        (maybe_canonicalize_comparison): Likewise.
        (fold_comparison): Likewise.
        (fold_binary): Likewise.
        (tree_expr_nonnegative_p): Likewise.
        (tree_expr_nonzero_p): Likewise.
        * tree-vrp.c (compare_values): Likewise.
        (extract_range_from_binary_expr): Likewise.
        (extract_range_from_unary_expr): Likewise.
        * tree-ssa-loop-niter.c (infer_loop_bounds_from_signedness):
        Likewise.
        (nowrap_type_p): Likewise.
        * tree-scalar-evolution.c (simple_iv): Likewise.
        * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_WRAPS.
        (build_range_check): Likewise.
        (extract_muldiv_1): Likewise.
        (fold_comparison): Likewise.
        * tree-vrp.c (vrp_int_const_binop): Likewise.
        (extract_range_from_unary_expr): Likewise.
        * convert.c (convert_to_integer): Likewise.
        * fold-const.c (fold_negate_expr): Use TYPE_OVERFLOW_TRAPS.
        (fold_comparison): Likewise.
        (fold_binary): Likewise.
        * optabs.c (optab_for_tree_code): Likewise.
        * tree-vectorizer.c (vect_is_simple_reduction): Likewise.
        * simplify-rtx.c (simplify_const_relational_operation): Check
        flag_strict_overflow and flag_trapv.
        (simplify_const_relational_operation): Likewise.
        * doc/invoke.texi (Option Summary): Mention -fstrict-overflow.
        (Optimize Options): Add -fstrict-overflow to -O2 list.  Document
        -fstrict-overflow.

2007-01-27  Roger Sayle  <roger@eyesopen.com>

        * tree.c (tree_fold_gcd): Delete.
        * tree.h (tree_fold_gcd): Remove prototype.
        * tree-data-ref.c (tree_fold_divides_p): Don't use tree_fold_gcd to
        test whether one constant integer is a multiple of another.  Instead
        call int_const_binop with TRUNC_MOD_EXPR and test for a zero result.
        * fold-const.c (multiple_of_p):  We've determined both TOP and
        BOTTOM are integer constants so we can call int_const_binop directly
        instead of the more generic const_binop.

2007-01-27  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (size_binop): In the fast-paths for X+0, 0+X, X-0 and
        1*X check that the constant hasn't overflowed, to preserve the
        TREE_OVERFLOW bit.
        (round_up): Provide an efficient implementation when rouding-up an
        INTEGER_CST to a power-of-two.

2007-01-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/sourcebuild.texi: Add comma for clarity.
        * doc/extend.texi: Fix some typos.
        * doc/passes.texi: Likewise.
        * doc/cppinternals.texi: Likewise.
        * doc/c-tree.texi: Likewise.
        * doc/tree-ssa.texi: Likewise.
        * doc/install.texi: Likewise.

2007-01-27  Jan Hubicka  <jh@suse.cz>

        * tree-sra.c (sra_walk_function): Don't rely on aliases being build.
        (pass_sra): Do not require alias information.
        * passes.c (init_optimization_passes): Add SRA

2007-01-27  Steven Bosscher  <steven@gcc.gnu.org>

        * tracer.c (rest_of_handle_tracer): We already cleaned
        up the CFG in tracer() so don't do it here again.
        * cfgcleanup.c (rest_of_handle_jump2): Don't repeat
        cleanup_cfg here, either.  And don't call renumber_insns.

        * cfgrtl.c (rtl_verify_flow_info_1): Don't verify that BB_END
        and BB_HEAD are in the insn stream here.  Instead make sure
        that BB_INSN is valid on all insns.  Also, do check here that
        there are no pending branch predictions...
        (rtl_verify_flow_info): ...instead of doing it here.  Checks
        for BB_END and BB_HEAD moved from rtl_verify_flow_info_1 to
        here.

2007-01-26  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (ix86_swap_binary_operands_p): New helper
        function to simplify/factorize operand order canonicalization.
        (ix86_fixup_binary_operands): Reorganize using the above function.
        (ix86_binary_operator_ok): Likewise.

2007-01-27  Jakub Jelinek  <jakub@redhat.com>

        * genattrtab.c (struct attr_value_list, insn_code_values): Move to
        file scope from optimize_attrs.
        (simplify_test_exp): If insn_code_values is not NULL, use it to speed
        up search.
        (optimize_attrs): Clear insn_code_values after freeing it.

2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-address.c (create_mem_ref): Remove ", bsi" from
        a parts.base assignment.

2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-data-ref.c (dump_subscript): Use dump_conflict_function.
        (compute_subscript_distance, initialize_data_dependence_relation,
        finalize_ddr_dependent, analyze_ziv_subscript,
        analyze_siv_subscript_cst_affine,
        compute_overlap_steps_for_affine_univar,
        compute_overlap_steps_for_affine_1_2, analyze_subscript_affine_affine,
        analyze_siv_subscript, analyze_miv_subscript,
        analyze_overlapping_iterations, subscript_dependence_tester_1,
        compute_self_dependence, free_dependence_relation): Work
        with affine_fn instead of chrecs.
        (dump_affine_function, dump_conflict_function, affine_function_equal_p,
        common_affine_function, affine_function_base,
        affine_function_constant_p, affine_fn_op, affine_fn_plus,
        affine_fn_minus, affine_fn_free, conflict_fn_not_known,
        conflict_fn_no_dependence, free_conflict_function, free_subscripts,
        conflict_fn, affine_fn_cst, affine_fn_univar): New functions.
        (all_chrecs_equal_p): Removed.
        * tree-data-ref.h (affine_fn, conflict_function): New types.
        (struct subscript): Change type of conflicting_iterations_in_a
        and conflicting_iterations_in_b.

2007-01-26  Steve Ellcey  <sje@cup.hp.com>

        PR other/30182
        * config/pa/pa.h (TARGET_HPUX_11): New.
        * config/pa/pa-hpux11.h (TARGET_HPUX_11): New.
        * config/pa/pa.c (pa_init_builtins): Use TARGET_HPUX_11.

2007-01-26  Daniel Berlin  <dberlin@dberlin.org>
        Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (solve_graph): Handle case
        we merged the variable to another.

2007-01-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_1): Treat ccos and ccosh as 'even'
        functions.

        * fold-const.c (negate_mathfn_p): Treat casin, casinh, catan,
        catanh, cproj, csin, csinh, ctan and ctanh as 'odd' functions.

2007-01-25  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_cannot_change_mode_class): We don't
        allow changes to modes which don't fit in those registers.

        * reload1.c (choose_reload_regs): Check for invalid subregs before
        computing their locations, not after.

2007-01-25  Geoffrey Keating  <geoffk@apple.com>

        PR 25127
        * config/rs6000/rs6000.c (first_altivec_reg_to_save): On Darwin,
        save Altivec registers in an eh_return function.
        (compute_vrsave_mask): Likewise.
        (rs6000_stack_info): Correct AIX/Darwin stack alignment computation
        for saving Altivec registers.
        (rs6000_emit_prologue): Don't allocate stack twice in
        eh_return function.  Correct expected value of altivec_save_offset
        when using save_world.  Describe save of R0 to stack when using
        save_world.  Describe stack pointer adjustment when using
        save_world.  Remove duplicated eh_return parameter register saving.
        Update sp_offset variable after save_world.
        * config/rs6000/t-darwin (LIB2FUNCS_STATIC_EXTRA): Remove
        darwin-world.asm.
        (LIB2FUNCS_EXTRA): Add darwin-world.asm.
        * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): -m64
        implies Altivec.

2007-01-25  Steve Ellcey  <sje@cup.hp.com>

        * config.gcc (ia64*-*-hpux*): Make posix threads the default.

2007-01-25  Steve Ellcey  <sje@cup.hp.com>

        PR other/30182
        * config/pa/pa.c (pa_init_builtins): Set asm names for finite routines.
        * config/ia64/ia64.c (ia64_init_builtins):  Ditto.

2007-01-25  Richard Guenther  <rguenther@suse.de>

        * doc/invoke.texi (-Wcoverage-mismatch): Document.
        * common.opt (-Wcoverage-mismatch): New warning option.
        * coverage.c (get_coverage_counts): Ignore coverage mismatch
        if -Wcoverage-mismatch is given.

2007-01-25  Razya Ladelsky  <razya@il.ibm.com>

        * ipa-cp.c (ipcp_insert_stage, ipcp_driver): Support for SSA.
        (ipcp_driver): Change to static definition.
        Add dumping of the ifunctions.
        (constant_val_insert): Remove unused parameter. Support for SSA.
        (ipcp_propagate_const): Support for SSA.
        (ipcp_profile_bb_print): Print only analyzed nodes.
        (ipcp_replace_map_create): Remove support for Fortran constant
        for now.
        * ipa-prop.c (ipa_method_modify_stmt,
        ipa_callsite_compute_param): Support for SSA.
        * ipa-prop.h (ipcp_driver): Remove declaration.
        (IS_VALID_TREE_MAP_INDEX): Add define.

2007-01-24  Geoffrey Keating  <geoffk@apple.com>

        * unwind-dw2.c (execute_stack_op): Handle DW_OP_swap.

2007-01-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR middle-end/30447
        * builtins.c (fold_builtin_cabs): Use MPFR to evaluate a
        constant argument to cabs and do it without checking for
        -funsafe-math-optimizations.

2007-01-24  Douglas Gregor  <dgregor@osl.iu.edu>

        * c-common.h (RID_FIRST_CXX0X): New.
        (RID_LAST_CXX0X): New.
        * c-opts.c (c_common_handle_option): -Wc++0x-compat is triggered
        by -Wall.
        * c.opt (Wc++0x-compat): New.
        * doc/invoke.texi (-Wc++0x-compat): Document.

2007-01-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_carg): New.
        (fold_builtin_1): Use it.

2007-01-24  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_decide_inlining): Initialize initial_insns.

        * ipa-inline.c (initial_insns, max_insns): Delete.
        (compute_max_insns): New function.
        (cgraph_decide_inlining_of_small_function): Use it; take minimal amount
        of insns as base for code growth.
        (cgraph_decide_inlining): Make initial_insns local; do not compute
        max_insns.
        * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 60.
        * doc/invoke.texi (inline-unit-growth): Update docs.

2007-01-24  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.h (x86_cmpxchg16b): Remove const.
        (TARGET_CMPXCHG16B): Define to x86_cmpxchg16b.
        * config/i386/i386.c (x86_cmpxchg16b): Remove const.
        (override_options): Add PTA_CX16 flag.  Set x86_cmpxchg16b
        for CPUs that have PTA_CX16 set.

        PR middle-end/27416
        * gimplify.c (omp_check_private): New function.
        (gimplify_scan_omp_clauses): Use it for
        firstprivate/lastprivate/reduction.

        PR middle-end/30494
        * gimplify.c (omp_add_variable): Don't call omp_notice_variable
        on TYPE_SIZE_UNIT for GOVD_LOCAL VLAs.

        PR middle-end/30421
        * omp-low.c (lower_omp_for_lastprivate): Add dlist argument.
        If lower_lastprivate_clauses emits some statements, append them
        to dlist rather than body_p and to body_p append an initializer.
        (lower_omp_for): Adjust caller.

2007-01-24  Steve Ellcey  <sje@cup.hp.com>

        * target.h (globalize_decl_name): New.
        * target-def.h (TARGET_ASM_GLOBALIZE_DECL_NAME): New.
        * output.h (default_globalize_decl_name): New.
        * varasm.c (asm_output_bss): Use globalize_decl_name instead of
        globalize_label.
        (globalize_decl): Ditto.
        (default_globalize_decl_name): New.
        * config/ia64/ia64.c (ia64_globalize_decl_name): New.
        (ia64_handle_version_id_attribute): New.
        (TARGET_ASM_GLOBALIZE_DECL_NAME): New.
        (ia64_asm_output_external): Use globalize_decl_name instead
        of globalize_label.
        * doc/extend.texi (version_id): New pragma.
        * doc/tm.texi (ARGET_ASM_GLOBALIZE_DECL_NAME): New target hook.

2007-01-24  Andreas Krebbel  <krebbel1@de.ibm.com>

        * unwind-dw2-fde.c (get_cie_encoding): Replaced _Unwind_Word with
        _uleb128_t and _Unwind_SWord with _sleb128_t.
        * unwind-dw2.c (extract_cie_info, execute_stack_op, execute_cfa_program,
        uw_frame_state_for, uw_update_context_1): Likewise.
        * unwind-c.c (parse_lsda_header, PERSONALITY_FUNCTION): Likewise.
        * unwind-pe.h (read_uleb128, read_sleb128,
        read_encoded_value_with_base): Likewise.
        * unwind-generic.h: Define _sleb128_t and _uleb128_t types.

2007-01-24  Richard Guenther  <rguenther@suse.de>

        * builtins.c (expand_builtin_cexpi): Get the fndecl
        for cexp in the correct way.

2007-01-24  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-dce.c (eliminate_unnecesary_stmts): Remove dead LHS of calls.

2007-01-24  Andreas Krebbel  <krebbel1@de.ibm.com>

        * c-cppbuiltin.c (builtin_define_type_sizeof): New function.
        (c_cpp_builtins): New builtin macros: __SIZEOF_INT__, __SIZEOF_LONG__,
        __SIZEOF_LONG_LONG__, __SIZEOF_SHORT__, __SIZEOF_POINTER__,
        __SIZEOF_FLOAT__, __SIZEOF_DOUBLE__, __SIZEOF_LONG_DOUBLE__,
        __SIZEOF_SIZE_T__, __SIZEOF_WCHAR_T__, __SIZEOF_WINT_T__ and
        __SIZEOF_PTRDIFF_T__.
        * doc/cpp.texi: Documentation for the new builtin macros added.

2007-01-24  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (tanxf2, tan<mode>2, atan<mode>2, log<mode>2,
        log10<mode>2, log2<mode>2, expxf2, exp10xf2, exp2xf2): Use op2
        instead of operands[2] to avoid access past the end of array.

2007-01-24  Richard Sandiford  <richard@codesourcery.com>

        * reload1.c (emit_reload_insns): Pass the reload register
        for a non-spill output reload through forget_old_reloads_1.

2007-01-23  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
        _SOFT_DOUBLE if doubles use software floating-point.
        * config/rs6000/libgcc-ppc-glibc.ver: Export additional long
        double functions if _SOFT_DOUBLE, not _SOFT_FLOAT.
        * config/rs6000/darwin-ldouble.c: Also compile functions for
        hard-float without FPRs.  Use fmsub function for all __NO_FPRS__
        cases.  Compile extra functions if _SOFT_DOUBLE, not _SOFT_FLOAT.
        * config/rs6000/linuxspe.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Remove
        commented-out long double override.
        (CPP_LONGDOUBLE_DEFAULT_SPEC): Likewise.
        * config/rs6000/eabispe.h: Likewise.
        * config/rs6000/rs6000.c (rs6000_override_options): Don't override
        long double for non-SPE.
        (rs6000_handle_option): Likewise.
        (invalid_e500_subreg): Disallow more subregs involding DImode,
        DFmode, TImode or TFmode.
        (rs6000_legitimate_offset_address_p): Check TFmode offsets for
        E500 double.
        (legitimate_lo_sum_address_p): Also check for TFmode for E500
        double.
        (rs6000_legitimize_address): Also handle TFmode for E500 double.
        (rs6000_legitimize_reload_address): Also handle TFmode for E500
        double.
        (rs6000_legitimate_address): Also check for TFmode for E500
        double.
        (rs6000_emit_move): Use DFmode subregs of TFmode for E500 double.
        (spe_build_register_parallel): Handle TFmode and TCmode.
        (rs6000_spe_function_arg): Handle TFmode and TCmode for E500
        double.
        (function_arg): Handle TFmode and TCmode for E500 double.
        (rs6000_init_libfuncs): Initialize extra libfuncs for soft double
        in general.
        (print_operand): Handle TFmode and TImode for %y.
        (rs6000_generate_compare): Handle TFmode comparisons for E500
        double.
        (spe_func_has_64bit_regs_p): Check for TFmode for E500 double.
        (rs6000_function_value): Handle TFmode and TCmode for E500 double.
        (rs6000_libcall_value): Handle TFmode and TCmode for E500 double.
        * config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Check for
        TFmode for E500 double.
        * config/rs6000/rs6000.md (FP): Allow TF for E500 double.
        (floatsidf2): Enable for E500 double.
        (movtf_softfloat): Use rs6000_nonimmediate_operand.
        (extenddftf2): Change to extenddftf2_fprs.
        (extenddftf2): Call gen_spe_extenddftf2 or gen_extenddftf2_fprs
        depending on TARGET_E500_DOUBLE.
        (extendsftf2): Enable for E500 double.
        (trunctfdf2): Enable for E500 double.
        (trunctfsf2): Change to trunctfsf2_fprs.
        (trunctfsf2): Call gen_spe_trunctfsf2 or gen_trunctfsf2_fprs
        depending on TARGET_E500_DOUBLE.
        (floatsitf2): Enable for E500 double.
        (fix_trunctfsi2): Change to fix_trunctfsi2_fprs.
        (fix_trunctfsi2): Call gen_spe_fix_trunctfsi2 or
        gen_fix_trunctfsi2_fprs depending on TARGET_E500_DOUBLE.
        (negtf2): Change to negtf2_internal.
        (negtf2): New expander.
        (abstf2): Enable for E500 double.  Call gen_spe_abstf2_tst,
        gen_spe_abstf2_cmp or gen_abstf2_internal depending on
        TARGET_E500_DOUBLE and flag_unsafe_math_optimizations.
        (movdi_internal32): Use rs6000_nonimmediate_operand.
        (unnamed splitter): Likewise.
        * config/rs6000/spe.md (CMPTFEQ_GPR, TSTTFEQ_GPR, CMPTFGT_GPR,
        TSTTFGT_GPR, CMPTFLT_GPR, TSTTFLT_GPR): New unspecs.
        (SPE64TF, DITI): New mode macros.
        (frob_df_di): Change to frob_<SPE64:mode>_<DITI:mode>; allow more
        modes.
        (frob_tf_ti): New.
        (frob_<mode>_di_2): New.
        (frob_tf_di_8_2): New.
        (frob_di_df): Change to frob_di_<mode>; allow more modes.
        (frob_ti_tf): New.
        (frob_di_df_2): Change to frob_<DITI:mode>_<SPE64:mode>_2; allow
        more modes.
        (frob_ti_<mode>_8_2): New.
        (frob_ti_tf_2): New.
        (mov_si<mode>_e500_subreg0, mov_si<mode>_e500_subreg0_2,
        mov_si<mode>_e500_subreg4, mov_si<mode>_e500_subreg4_2): Allow
        TFmode.
        (mov_sitf_e500_subreg8, mov_sitf_e500_subreg8_2,
        mov_sitf_e500_subreg12, mov_sitf_e500_subreg12_2): New.
        (spe_trunctfdf2_internal1, spe_trunctfsf2, spe_extenddftf2,
        spe_fix_trunctfsi2, spe_fix_trunctfsi2_internal,
        spe_negtf2_internal, spe_abstf2_cmp, spe_abstf2_tst): New.
        (cmptfeq_gpr, tsttfeq_gpr, cmptfgt_gpr, tsttfgt_gpr, cmptflt_gpr,
        tsttflt_gp): New.

2007-01-23  Ian Lance Taylor  <iant@google.com>

        * Makefile.in (OBJS-common): Reformat, alphabetize, but put
        insn-*.o first.
        (OBJS-archive): Reformat, alphabetize.
        (OBJS): Change out_object_file to OBJS-md.

2007-01-23  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md: Use REG_P, MEM_P, CONST_INT_P, LABEL_P,
        JUMP_P and CALL_P predicates where applicable.
        * config/i386/i386.c: Ditto.
        * config/i386/i386.md: Ditto.
        * config/i386/mmx.md: Ditto.
        * config/i386/predicates.md: Ditto.

2007-01-22  Andreas Schwab  <schwab@suse.de>

        * config/m68k/m68k.h: Fix comment.

2007-01-22  Jan Hubicka  <jh@suse.cz>

        * passes.c (init_optimization_passes): Do not rerun
        pass_early_warn_uninitialized.

2007-01-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/30038
        * tree-ssa-math-opts.c (maybe_record_sincos): New static helper
        function.
        (execute_cse_sincos_1): Likewise.
        (execute_cse_sincos): Likewise.
        (gate_cse_sincos): Likewise.
        (pass_cse_sincos): New pass CSEing sin() and cos() calls using
        the cexpi() canonicalization of sincos().
        * tree-pass.h (pass_cse_sincos): Declare.
        * passes.c (init_optimization_passes): New pass pas_cse_sincos.

2007-01-21  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/29329
        * combine.c (replaced_rhs_insn): Rename to i2mod.
        (replaced_rhs_value): Rename to i2mod_new_rhs.
        (i2mod_old_rhs): New global variable.
        (combine_instructions): Adjust for above change.  Save a copy of
        the old RHS into i2mod_old_rhs when the contents of a REG_EQUAL
        note are substituted in the second instruction.
        (distribute_notes) <REG_DEAD>: Adjust for above change.  Do not
        ditch the note if it pertains to the second eliminated register
        and this register is mentioned in i2mod_old_rhs.

        Revert:
        2006-09-12  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * combine.c (distribute_notes) <REG_DEAD>: Do not consider SETs past
        the insn to which the note was originally attached.

2007-01-21  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (inlining_mode): Comment, move up.
        (cgraph_decide_inlining_incrementally): Do not perform inlining
        itself; fix handling of flattening of self recursive functions.
        (cgraph_find_cycles): Remove.
        (cgraph_flatten_node): Remove.
        (cgraph_decide_inlining): Use incremental inliner to handle flattening.
        (try_inline): New function.
        (cgraph_early_inlining): Update call of
        cgraph_decide_inlining_incrementally.  Apply inlining here.
        (apply_inline): Update call of cgraph_decide_inlining_incrementally.

2007-01-21  Dirk Mueller  <dmueller@suse.de>

        PR bootstrap/30511
        * tree-vrp.c (check_array_bounds): do not warn
        about ADDR_EXPR's of ARRAY_REF's which are immediately
        used in binary expressions.

2007-01-21  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.h (struct _stmt_vec_info): Add new field
        read_write_dep and macros for its access.
        * tree-vectorizer.c (new_stmt_vec_info): Initialize the new field.
        * tree-vect-analyze.c (vect_analyze_data_ref_dependence): Remove
        argument, call vect_check_interleaving for every independent pair of
        data-refs. Mark loads that access the same memory location as a store
        in the loop.
        (vect_check_dependences): Remove.
        (vect_analyze_data_ref_dependences): Remove  vect_check_dependences
        call, fix the call to vect_analyze_data_ref_dependence.
        (vect_analyze_data_ref_access): For statements that access the same
        data-ref, check that they are not stores; for loads, check that there
        is no store that access the same location.

2007-01-20  Roger Sayle  <roger@eyesopen.com>
            Joseph Myers  <joseph@codesourcery.com>

        * doc/invoke.texi (-fdump-rtl-combine): Fix under/overfull hbox.
        (-fdump-rtl-stack): Likewise.
        (-fno-signed-zeros): Use @minus{} for a minus sign.  Correct typo.
        (-mcheck-zero-division, -mcpu): Fix under/overfull hbox.
        (-mpt-fixed): Use @minus{} for minus sign.
        (Using Precompiled Headers): Fix under/overfull hbox.

2007-01-20  Jan Hubicka  <jh@suse.cz>

        * tree-flow.h (struct stmt_ann_d): Move references_memory to proper
        place within annotation.

2007-01-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (output_move_double): Change array size of xoperands to 4.

2007-01-20  Jan Hubicka  <jh@suse.cz>

        * tree-tailcall.c (adjust_return_value): Do not use RESULT_DECL
        as temporary.

2007-01-19  Ian Lance Taylor  <iant@google.com>

        * expmed.c (expand_divmod) [TRUNC_MOD_EXPR, TRUNC_DIV_EXPR]: Cast
        constant to unsigned HOST_WIDE_INT before negating.

2007-01-19  Ian Lance Taylor  <iant@google.com>

        * tree-ssa-operands.h (struct vuse_vec_d): Change num_vuse field
        to unsigned.
        (VUSE_VECT_ELEMENT) [ENABLE_CHECKING]: Use unsigned comparison.
        (VUSE_ELEMENT_PTR) [ENABLE_CHECKING]: Likewise.
        (SET_VUSE_VECT_ELEMENT) [ENABLE_CHECKING]: Likewise.
        (SET_VUSE_ELEMENT_VAR) [ENABLE_CHECKING]: Likewise.
        (SET_VUSE_ELEMENT_PTR) [ENABLE_CHECKING]: Likewise.
        (realloc_vdef, realloc_vuse): Change second parameter to
        unsigned.
        (ssa_operand_iterator_d): Change vuse_index and mayuse_index
        fields to unsigned.
        * tree-ssa-operands.c (realloc_vop): Change num_elem parameter to
        unsigned. Change x and lim locals to unsigned.
        (realloc_vdef, realloc_vuse): Change num_elem parameter to
        unsigned.
        (finalize_ssa_vuse_ops): Change old_i local to unsigned.
        (copy_virtual_operands): Change i and n locals to unsigned.

2007-01-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR middle-end/29335
        * builtins.c (fold_builtin_1): Handle builtin fdim.

2007-01-20  Jan Hubicka  <jh@suse.cz>

        * tree-ssa.c (init_tree_ssa): Do not call init_alias_heapvars.
        * tree-ssa-structalias.c (compute_points_to_sets): Do call
        init_alias_heapvars.
        (init_alias_heapvars): Initialize only when not already initialized.
        (delete_alias_heapvars): Set heapvar_for_stmt to NULL.

2007-01-19  Roger Sayle  <roger@eyesopen.com>

        * common.opt (fsigned-zeros): New command line option.
        * flags.h (HONOR_SIGNED_ZEROS): Control via flag_signed_zeros instead
        of flag_unsafe_math_optimizations.
        * opts.c (set_fast_math_flags): The -ffast-math command line option
        implies -fno-signed-zeros.
        (fast_math_flags_set_p): Likewise.

        * doc/invoke.texi: Document new -fno-signed-zeros option, and update
        the documentation of -ffast-math appropriately.  Wrap long lines.

2007-01-19  Steve Ellcey  <sje@cup.hp.com>

        * system.h (ASM_MAKE_LABEL_LINKONCE): Poison.
        * varasm.c (globalize_decl): Remove ASM_MAKE_LABEL_LINKONCE ifdef.

2007-01-19  Tomas Bily  <tbily@suse.cz>

        * cgraphunit.c (cgraph_finalize_function): Updating of pid
        * tree-profile.c:
        (tree_init_ic_make_global_vars): New function
        (tree_init_edge_profiler): call of tree_init_ic_make_global_vars
        (tree_gen_ic_profiler): New function
        (tree_gen_ic_func_profiler): New function
        (tree_profiling): Added calling of tree_gen_ic_func_profiler
        (tree_profile_hooks): Added hook for indirec/virtual calls
        * value-prof.c (tree_find_values_to_profile): New case for
        indirect calls
        (tree_values_to_profile): Call for determining indirect/virtual
        counters
        (tree_indirect_call_to_profile): New function
        (tree_ic_transform): New function
        (tree_ic): New function
        (find_func_by_pid): New function
        (init_pid_map): New function
        (tree_value_profile_transformations): Added check for
        indirect/virtual call transformation
        * value-prof.h (enum hist_type): New counter type for
        indirect/virtual calls
        (profile_hooks): Added new hook for profiling indirect/virtual
        calls
        * profile.c (instrument_values): New case for indirect/virtual
        call added
        * gcov-io.h (GCOV_LAST_VALUE_COUNTER): Changed to 6
        (GCOV_COUNTER_V_INDIR): New counter type
        (GCOV_COUNTER_NAMES): New name of counter "indirect" added
        (GCOV_MERGE_FUNCTIONS): New merge function for indirect/virtual
        call added
        * cgraph.c: Definition of cgraph_max_pid
        (cgraph_create_node): Default init of pid attribute
        * cgraph.h: Declaration of cgraph_max_pid
        (struct cgraph_node): Added pid attribute
        * libgcov.c (__gcov_indirect_call_profiler): New function
        (__gcov_one_value_profiler_body): New function
        (__gcov_one_value_profiler): Body was moved to
        __gcov_one_value_profiler_body and calls it

2007-01-19  Basile Starynkevitch  <basile@starynkevitch.net>

        * doc/gty.texi (Options): Document the mark_hook option to GTY.
        * gengtype.c (write_types_data, write_func_for_structure,
        write_types, ggc_wtd, pch_wtd): Add skip_hooks to
        write_types_data, ggc_wtd, pch_wtd for processing mark_hook.
        (walk_type, write_func_for_structure): Generate the mark_hook if
        needed.

2007-01-19  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_decide_inlining_incrementally): Instead of
        'early' argument take inlining mode argument specifying whether to
        inline for size/speeed or all functions; add support for flattening;
        improve dumpting.
        (cgraph_early_inlining): Update call of decide_inlining_incrementally.

2007-01-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/17947
        * toplev.c (warn_deprecated_use): Use %qD instead of %qs to print
        the name of the declared identifier.

2007-01-19  Dirk Mueller  <dmueller@suse.de>

        * config/i386.h (CONDITIONAL_REGISTER_USAGE): Store
        result of PIC_OFFSET_TABLE_REGNUM in temporary variable to avoid
        duplicate evaluation.

2007-01-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (acos<mode>2): Rename from acossf2 and acosdf2.
        Macroize expander using X87MODEF12 mode macro.  Extend operand 1
        to XFMode, use acosxf2 and truncate result to requested mode.
        Use SSE_FLOAT_MODE_P to disable patterns for SSE math.
        (asin<mode>2): Similarly, with asin expanders.
        (*fscalexf4_i387): Rename from *fscalexf4.
        (expNcorexf3): New expander.
        (expxf2, exp10xf2, exp2xf2): Use expNcorexf3 expander.
        (exp<mode>2): Rename from expsf2 and expdf2. Macroize expander using
        X87MODEF12 mode macro.  Extend operand 1 to XFMode, use expxf2 and
        truncate result to requested mode. Use SSE_FLOAT_MODE_P to disable
        patterns for SSE math.
        (exp10<mode>2): Similarly, with exp10 expanders.
        (exp2<mode>2): Similarly, with exp2 expanders.
        (expm1<mode>2): Similarly, with expm1 expanders.
        (ldexp<mode>3): Similarly, with ldexp expanders.
        (log<mode>2, log10<mode>2, log2<mode>2, log1p<mode>2, logb<mode>2):
        Use gen_truncxf<mode>2_i387_noop to truncate result.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (PREFERRED_STACK_BOUNDARY): Define to 32
        for ColdFire targets.

2007-01-19  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (M68K_STATIC_CHAIN_REG_NAME): New macro.
        (INITIALIZE_TRAMPOLINE): Use STATIC_CHAIN_REGNUM.
        (__transfer_from_trampoline): Use M68K_STATIC_CHAIN_REG_NAME.
        * config/m68k/m68kelf.h (STATIC_CHAIN_REGNUM): Override.
        (M68K_STATIC_CHAIN_REG_NAME): Likewise.
        * config/m68k/netbsd-elf.h (M68K_STATIC_CHAIN_REG_NAME): Likewise.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (adddi_dilshr32): Rename to...
        (*adddi_dilshr32): ...this.  Fix formatting.  Remove commented-out
        non-canonical pattern.  Restrict to !TARGET_COLDFIRE.
        (*adddi_dilshr32_cf): New pattern.
        (adddi3, subdi3): Remove first alternatives.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (notice_update_cc): If an SFmode move is
        implemented using move.l, do not use its cc result for floating-point
        comparisons.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (EXTRA_CONSTRAINT): Stop the 'T' constraint
        from accepting 's' constraints if flag_pic.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (bordered, bunordered, buneq, bunge, bungt)
        (bunle, bunlt, bltgt, bordered_rev, bunordered_rev, buneq_rev)
        (bunge_rev, bungt_rev, bunle_rev, bunlt_rev, bltgt_rev): Change
        condition from TARGET_68881 to TARGET_HARD_FLOAT.

2007-01-19  Sandra Loosemore  <sandra@codesourcery.com>

        * longlong.h (count_leading_zeros, COUNT_LEADING_ZEROS_0): Add
        ColdFire alternatives.
        * config/m68k/m68k.h (CLZ_DEFINED_VALUE_AT_ZERO): New macro.
        * config/m68k/m68k.md (clzsi2):  Define for ColdFire
        architectures that support ff1 instruction.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (CONST_OK_FOR_LETTER_P): Add an 'R' case.
        * config/m68k/m68k.md (*movsi_cfv4): Fold into...
        (*movsi_cf): ...here.  Remove unnecessary 'R' from 'Rg'.
        Add commentary.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (valid_mov3q_const): Take a HOST_WIDE_INT
        and return a bool.
        (output_move_const_into_data_reg, output_move_simode_const): Delete.
        * config/m68k/m68k.c (const_method, const_int_cost): Take a
        HOST_WIDE_INT instead of an rtx.
        (m68k_rtx_costs): Update call accordingly.
        (output_move_const_into_data_reg): Likewise.  Fix formatting.
        (valid_mov3q_const): Take a HOST_WIDE_INT instead of an rtx.
        Return a bool.
        (output_move_simode_const): Update calls after above changes.
        Rework to use automatic variables and predicates like MEM_P.
        * config/m68k/m68k.md (pushexthisi_const): Update call to
        valid_mov3q_const.

2007-01-19  Dirk Mueller  <dmueller@suse.de>

        * tree-ssa-alias.c (perform_var_substitution): Fix typo
        in dump_flags test.

2007-01-19  Richard Guenther  <rguenther@suse.de>

        * builtins.c (expand_builtin_cexpi): Fall back to expanding
        via cexp in case sincos is not available.

2007-01-19  Richard Guenther  <rguenther@suse.de>

        * doc/tm.texi (TARGET_HAS_SINCOS): Document new target macro.
        * defaults.h (TARGET_HAS_SINCOS): Default to off.
        * config/linux.h (TARGET_HAS_SINCOS): Set to on if we have glibc.
        * config/alpha/linux.h (TARGET_HAS_SINCOS): Likewise.
        * config/sparc/linux.h (TARGET_HAS_SINCOS): Likewise.
        * config/sparc/linux64.h (TARGET_HAS_SINCOS): Likewise.
        * config/rs6000/linux.h (TARGET_HAS_SINCOS): Likewise.
        * config/rs6000/linux64.h (TARGET_HAS_SINCOS): Likewise.

2007-01-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*fpatanxf3_i387, fpatan_extend<mode>xf3_i387):
        New insn patterns.
        (atan2sf3_1, atan2df3_1, atan2xf3_1): Remove insn patterns.
        (atan2xf3): Directly generate RTL pattern.
        (atan2<mode>3): Rename from atan2sf3 and atan2df3 and macroize insn
        patterns using X87MODEF12 mode macro.  Use fpatan_extend<mode>xf3_i387
        and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
        disable patterns for SSE math.
        (atan<mode>2): Rename from atansf2 and atandf2 and macroize insn
        patterns using X87MODEF12 mode macro.  Use fpatan_extend<mode>xf3_i387
        and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
        disable patterns for SSE math.

2007-01-19  Alexandre Oliva  <aoliva@redhat.com>

        * libgcc-std.ver: Fix typo in %inherit for GCC_4.3.0.

2007-01-18  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_unary) <VIEW_CONVERT_EXPR>: Optimize away a
        VIEW_CONVERT_EXPR to the same type as it's operand.

2007-01-18  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/darwin-ldouble.c: Only build _SOFT_FLOAT if
        configured for long double 128.

2007-01-18  Mike Stump  <mrs@apple.com>

        * config/rs6000/rs6000.c (rs6000_emit_vector_compare): Fix build
        error.

2007-01-18  Michael Meissner  <michael.meissner@amd.com>

        * i386.c (ix86_compute_frame_layout): Make fprintf's in #if 0 code
        type correct.

2007-01-18  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-operands.c (vop_free_bucket_size): Never return value
        greater than NUM_VOP_FREE_BUCKETS.

2007-01-18  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-structalias.c: Update comments.
        (ptabitmap_obstack): Removed.
        (pta_obstack): New.
        (oldpta_obstack): Ditto.
        (stats): Add a few members.
        (struct variable_info): Remove node, complex, address_taken, and
        indirect_target members. Add oldsolution member.
        (new_var_info): Do not initialize removed members.
        (constraint_expr_type): Remove INCLUDES.
        (constraint_graph): Add size, implicit_preds, rep,
        indirect_cycles, eq_rep, label, direct_nodes, and complex members.
        (FIRST_REF_NODE): New macro.
        (LAST_REF_NODE): Ditto.
        (FIRST_ADDR_NODE): Ditto.
        (find): New function.
        (unite): Ditto.
        (dump_constraint): Do not handle INCLUDES.
        (insert_into_complex): Do not insert duplicate constraints.
        (condense_varmap_nodes): Renamed and rewritten into ...
        (merge_node_constraints): This. Also fix bug in handling of
        offseted copy constraints.
        (clear_edges_for_node): No longer need to deal with preds at all,
        or removing associated preds/succs.
        (merge_graph_nodes): Deal with indirect_cycles.
        Don't deal with predecessors.
        (add_implicit_graph_edge): New function.
        (add_pred_graph_edge): Ditto.
        (add_graph_edge): Don't deal with predecessors.
        (build_constraint_graph): Removed.
        (build_pred_graph): New function.
        (build_succ_graph): Ditto.
        (struct scc_info): Removed in_component. Added roots, dfs, and
        node_mapping. Remove visited_index, unification_queue.
        (scc_visit): Deal with union-find we do now.
        Deal with cycles with REF nodes.
        (collapse_nodes): Renamed and rewritten to ...
        (unify_nodes): This.
        (process_unification_queue): Removed.
        (topo_visit): Cleanup
        (do_da_constraint): Use find.
        (do_sd_constraint): Ditto.
        (do_ds_constraint): Ditto.
        (do_complex_constraint): Ditto.
        (init_scc_info): Update for removed and added members.
        (find_and_collapse_graph_cycles): Renamed and rewritten into ...
        (find_indirect_cycles): This.
        (equivalence_class): New variable.
        (label_visit): New function.
        (perform_variable_substitution): Rewritten.
        (free_var_substitution_info): New function.
        (find_equivalent_node): Ditto.
        (move_complex_constraints): Ditto.
        (eliminate_indirect_cycles): Ditto.
        (solve_graph): Only propagate changed bits.
        Use indirect cycle elimination.
        Use find.
        (tree_id_t): Rename to tree_vi_t, delete id member, add vi member.
        (tree_id_eq): Renamed to ...
        (tree_vi_eq): This. Update for member change
        (insert_id_for_tree): Renamed and rewritten to ...
        (insert_vi_for_tree): This.
        (lookup_id_for_tree): Renamed and rewritten to ...
        (lookup_vi_for_tree): This.
        (get_id_for_tree): Renamed and rewritten to ...
        (get_vi_for_tree): Ditto.
        (get_constraint_exp_from_ssa_var): Update to use get_vi_for_tree.
        (process_constraint): Don't handle INCLUDES.
        Remove special ADDRESSOF case.
        (find_func_aliases): Rewrite to use vi functions instead of id
        ones.
        (create_function_info_for): Ditto.
        (create_variable_info_for): Ditto.
        (intra_create_variable_infos): Ditto.
        (merge_smts_into): Ditto.
        (find_what_p_points_to): Ditto.
        (init_base_vars): Ditto.
        (init_alias_vars): Ditto.
        (remove_preds_and_fake_succs): New function.
        (dump_sa_points_to_info): Dump new stats.
        (dump_solution_for_var): Use find.
        (set_used_smts): Fix formatting.
        (compute_points_to_sets): Updated for new functions.
        (ipa_pta_execute): Ditto.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi (TARGET_FUNCTION_VALUE): Expand documentation of
        parallels.
        * calls.c (expand_call): If the return value is a PARALLEL,
        extract its first member.
        * config/m68k/linux.h (FUNCTION_EXTRA_EPILOGUE): Remove.
        * config/m68k/m68k.c (m68k_output_function_epilogue): Don't
        use FUNCTION_EXTRA_EPILOGUE.
        (m68k_function_value): Return a PARALLEL if the return value
        is of a pointer type.
        * config/m68k/netbsd-elf.h (current_function_returns_pointer)
        (FUNCTION_EXTRA_EPILOGUE): Remove.
        * config/m68k/m68k.md (D0_REG): New constant.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.c (m68k_output_function_epilogue): Don't
        output a NOP for empty epilogues.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (m68k_use_return_insn): Update comments
        before function.  Extend register save check to include all
        registers, not just integer ones.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k-protos.h (use_return_insn): Rename to...
        (m68k_use_return_insn): ...this.
        * config/m68k/m68k.h (USE_RETURN_INSN): Delete.
        * config/m68k/m68k.c (use_return_insn): Rename to...
        (m68k_use_return_insn): ...this.
        * config/m68k/m68k.md (return): Use m68k_use_return_insn instead
        of USE_RETURN_INSN.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/fpgnulib.c (__truncdfsf2): Implement round to
        nearest even, fix denormal rounding overflow.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (movsf_cf_hard): Use fsmove instead of
        f%$smove and f%$move.
        (movdf_cf_hard): Use fdmove for cases 0 and 3 and fmove for case 1.
        (extendsfdf2_cf): Use fdmove instead of f%&move.
        (truncdfsf2_cf): Use fsmove instead of f%$smove.
        (add<mode>3_cf, sub<mode>3_cf): Use <FP:prec> instead of <FP:round>.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (movdf_cf_hard): Use output_move_double for
        GPR<-GPR moves.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * real.h (real_format): Add a canonical_nan_lsbs_set field.
        (coldfire_single_format): Declare.
        (coldfire_double_format): Likewise.
        * real.c (encode_ieee_single): Use canonical_nan_lsbs_set instead
        of qnan_msb_set to determine the lower bits of a canonical
        NaN significand.
        (encode_ieee_double): Likewise.
        (encode_ieee_quad): Likewise.
        (ieee_single_format): Initialize canonical_nan_lsbs_set.
        (mips_single_format): Likewise.
        (ieee_double_format): Likewise.
        (mips_double_format): Likewise.
        (ieee_extended_motorola_format): Likewise.
        (ieee_extended_intel_96_format): Likewise.
        (ieee_extended_intel_128_format): Likewise.
        (ieee_extended_intel_96_round_53_format): Likewise.
        (ibm_extended_format): Likewise.
        (mips_extended_format): Likewise.
        (ieee_quad_format): Likewise.
        (mips_quad_format): Likewise.
        (vax_f_format): Likewise.
        (vax_d_format): Likewise.
        (vax_g_format): Likewise.
        (i370_single_format): Likewise.
        (i370_double_format): Likewise.
        (decimal_single_format): Likewise.
        (decimal_double_format): Likewise.
        (decimal_quad_format): Likewise.
        (c4x_single_format): Likewise.
        (c4x_extended_format): Likewise.
        (real_internal_format): Likewise.
        (coldfire_single_format): New real_format.
        (coldfire_double_format): Likewise.
        * config/pdp11/pdp11.c (pdp11_f_format): Initialize
        canonical_nan_lsbs_set.
        (pdp11_d_format): Likewise.
        * config/m68k/m68k.c (override_options): Override REAL_FORMAT_MODE
        if TARGET_COLDFIRE_CPU.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (m68k_output_pic_call): Delete.
        (output_call, m68k_legitimize_call_address): Declare.
        * config/m68k/m68k.h (EXTRA_CONSTRAINT): Remove unnecessary
        parenthesees.  Add support for a 'W' constraint.
        (LEGITIMATE_PIC_OPERAND_P): Remove SYMBOL_REF_FLAG handling.
        (PRINT_OPERAND_PUNCT_VALID_P): Remove comment about 'o'.
        (m68k_symbolic_call, m68k_symbolic_jump): Declare.
        * config/m68k/m68k.c (m68k_symbolic_call, m68k_symbolic_jump): New
        variables.
        (override_options): Initialize them.  Do not set flag_no_function_cse
        for TARGET_ID_SHARED_LIBRARY.
        (m68k_output_pic_call): Delete.
        (m68k_legitimize_call_address): New function.
        (print_operand): Remove the %o prefix.  Handle the %p prefix.
        (output_call): New function.
        (m68k_output_mi_thunk): Use m68k_symbolic_jump.  Always load the
        target address from the GOT if symbolic jumps are not allowed.
        * config/m68k/m68k.md (call, general_operand): Do not set
        SYMBOL_REF_FLAG.  Use m68k_legitimize_call_address instead.
        Merge separate flag_pic and !flag_pic define_insns into...
        (*call, *call_value): ...these new patterns.  Match the address
        rather than the containing MEM and require it to be a call_operand.
        Use output_call to generate the asm template.
        * config/m68k/predicates.md (const_call_operand): New predicate.
        (call_operand): Likewise.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/m68k.h (REGISTER_MOVE_COST): Simplify definition.
        (STACK_GROWS_DOWNWARD): Define to 1.
        (FUNCTION_VALUE, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P): Equivocate
        comments, emphasizing that these values are only defaults.
        * config/m68k/linux.h (LINK_SPEC): Fix formatting in #undef.
        * config/m68k/m68k.c (const_method): Remove trailing whitespace.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (cmpsi): Remove outdated flag_pic handling.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (DATA_REGNO_P, ADDRESS_REGNO_P, INT_REGNO_P)
        (FP_REGNO_P): New macros.
        (REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P, REGNO_OK_FOR_DATA_P)
        (REGNO_OK_FOR_FP_P, REG_OK_FOR_INDEX_P, REG_OK_FOR_BASE_P): Use them.
        (EH_RETURN_STACKADJ_RTX): Use A0_REG.
        * config/m68k/m68k.c (m68k_regno_mode_ok): Use the new REGNO macros.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
        (m68k-*-uclinuxoldabi, m68k-*-uclinux*, m68k-*-rtems*): Add t-floatlib
        to $tmake_file.
        * config/m68k/t-floatlib: New file, extracting common code from...
        * config/m68k/t-m68kbare, config/m68k/t-m68kelf,
        * config/m68k/t-uclinux: Here.
        * config/m68k/fpgnulib.c: Do not compile extendeed precision
        routines on ColdFire targets.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
        (m68010-*-netbsdelf*, m68k*-*-netbsdelf*, m68k*-*-openbsd*)
        (m68k-*-uclinuxoldabi, m68k-*-uclinux*, m68k-*-linux*)
        (m68k-*-rtems*): Use tm_file rather than m68k/m68k.h and
        explicitly set MOTOROLA to 1.
        * config/m68k/m68k.h (MOTOROLA): Simplify definition accordingly.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/m68k.h (PCC_STATIC_STRUCT_RETURN): Delete.
        (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Add MOTOROLA cases.
        * config/m68k/coff.h (REGISTER_PREFIX_MD): Delete.
        * config/m68k/m68020-elf.h (LIB_SPEC): Delete.
        * config/m68k/m68k-none.h (CC1_SPEC, CPP_SUBTARGET_SPEC): Delete.
        * config/m68k/m68kelf.h (IMMEDIATE_PREFIX, REGISTER_PREFIX_MD)
        (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Delete.
        (NO_DOLLAR_IN_LABEL, PCC_STATIC_STRUCT_RETURN): Don't undefine.
        (BSS_ASM_OP, ASM_OUTPUT_SKIP, ASM_OUTPUT_ASCII): Delete.
        * config/m68k/m68kemb.h (PCC_STATIC_STRUCT_RETURN): Don't undefine.
        * config/m68k/linux.h (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE)
        (WCHAR_TYPE_SIZE, TARGET_OBJFMT_CPP_BUILTINS): Delete.
        (TARGET_OS_CPP_BUILTINS): Don't define mc68000 and mc68020 here.
        (DBX_REGISTER_NUMBER): Delete.
        * config/m68k/netbsd-elf.h (IMMEDIATE_PREFIX): Delete.
        (PCC_STATIC_STRUCT_RETURN): Don't undefine.
        * config/m68k/openbsd.h (PCC_STATIC_STRUCT_RETURN): Define.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68k-*-uclinux*): Add flat.h to $tm_file.
        * config/flat.h: New file.
        * crtstuff.c (USE_PT_GNU_EH_FRAME): Don't define if
        OBJECT_FORMAT_FLAT.
        * config/m68k/m68k.h (ASM_PREFERRED_EH_DATA_FORMAT): Do not use
        indirect references for -msep-data or -mid-shared-library.
        Do not use PC-relative code addresses either.
        * config/m68k/m68k.c (override_options): Restrict -fPIC error
        to -mpcrel.
        * config/m68k/uclinux.h (STARTFILE_SPEC): Define.  Use Scrt1.o
        for shared libraries and crt1.o for executables.  Use crti.o and
        crtbegin.o.
        (ENDFILE_SPEC): Use crtend.o and crtn.o.
        (LIB_SPEC): Suppress -Rlibc.gdb if -static-libc is given.
        Do not add -elf2flt or -shared-lib-id options here.
        (LINK_SPEC): Define.  Pass -elf2flt if no -elf2flt option is given.
        Pass -shared-lib-id if -mid-shared-library, taking the library
        identifier from -mshared-library-id if given, otherwise
        defaulting to 0.
        (EH_FRAME_IN_DATA_SECTION): Do not undefine.
        (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP): Likewise.
        (TARGET_OS_CPP_BUILTINS): Define __GXX_MERGED_TYPEINFO_NAMES=0
        and __GXX_TYPEINFO_EQUALITY_INLINE=0 if -mid-shared-library.
        (DRIVER_SELF_SPECS): Map unadorned PIC options to -msep-data.
        * config/m68k/t-uclinux (EXTRA_MULTILIB_PARTS): Add crtbegin.o
        and crtend.o.
        * config/m68k/lb1sf68.asm (PICCALL): Use an lea and pc-relative
        jump sequence for ISA A and ISA A+.
        (PICJUMP): Likewise.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68k-*-uclinux*): Base the port on the common
        and m68k GNU/Linux files rather than on the generic ELF ones.
        * config/m68k/uclinux.h (TARGET_VERSION): Override.
        (TARGET_OS_CPP_BUILTINS): Use LINUX_TARGET_OS_CPP_BUILTINS.

2007-01-18  Julian Brown  <julian@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (LONG_DOUBLE_TYPE_SIZE): Make 64-bit on ColdFire.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Likewise.
        * config/m68k/netbsd-elf.h (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Undefine
        before redefining.
        * config/m68k/uclinux-oldabi.h (LONG_DOUBLE_TYPE_SIZE): Redefine to
        80 unconditionally.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Likewise.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * doc/install.texi: Document m68k-uclinuxoldabi.
        * config.gcc (m68k-*-uclinuxoldabi): New configuration.
        * config/m68k/uclinux-oldabi.h: New file, copied from
        config/m68k/uclinux.h.

2007-01-18  Kaz Kojima  <kkojima@rr.iij4u.or.jp>

        * config/m32r/m32r-protos.h (m32r_expand_epilogue): Declare it.
        * config/m32r/m32r.c (m32r_setup_incoming_varargs): Use gen_frame_mem.
        (m32r_compute_frame_size): Use unsigned for regno.
        (m32r_reload_lr): Use gen_frame_mem.
        (pop): New.
        (m32r_output_function_epilogue): Don't output the function epilogue
        textually here.
        (m32r_expand_epilogue): New.
        (direct_return): Return false if the function has the interrupt
        attribute.
        (m32r_hard_regno_rename_ok): Remove code for the textual epilogue.
        * config/m32r/m32r.md (epilogue): New expander.
        (return_lr, return_rte): New insns.
        (return): Make it expander.
        (return_normal): New expander.

2007-01-18  Josh Conner  <jconner@apple.com>

        PR target/30485
        * config/rs6000/rs6000.c (rs6000_emit_vector_compare): Add
        support for UNLE, UNLT, UNGE, and UNGT.

2007-01-18  Jan Hubicka  <jh@suse.cz>

        * tree-vrp.c (finalize_jump_threads): Do not call cleanup_cfg by hand.
        * tree-tailcall (add_virtual_phis): Likewise.
        (optimize_tail_call): Return TODOs.
        (execute_tail_calls): Return TODOs.
        * tree-ssa-ccp (execute_fold_all_builtins): Do cleanup_cfg via TODO.
        * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Return if something
        changed.
        * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
        Cleanup cfg using TODO.
        * tree-flow.h (cleanup_tree_cfg_loop): Update prototype.
        * passes.c (execute_function_todo): When cleanup did something, remove
        unused locals.
        * tree-cfg.c (pass_build_cfg): Add cleanup_cfg TODO.
        (make_edges): Don't cleanup_cfg.

2007-01-18  Uros Bizjak  <ubizjak@gmail.com>

        * reg-stack.c (subst_stack_regs_pat) [UNSPEC_SINCOS_COS,
        UNSPEC_XTRACT_FRACT]: Use generic code for instructions that
        operate on the top of stack.
        [UNSPEC_SINCOS_SIN, UNSPEC_XTRACT_EXP, UNSPEC_TAN]: Rewrite
        register handling of instructions that output to the second
        stack slot.
        [UNSPEC_TAN_ONE, UNSPEC_TAN_TAN]: Remove.
        (move_for_stack_reg): Special-case check for dead destination
        stack slot for constant load of 1.0 inside UNSPEC_TAN.

        * config/i386/i386.md (UNSPEC_TAN): New constant.
        (UNSPEC_TAN_ONE, UNSPEC_TAN_TAN): Remove.
        (fptanxf4_i387, fptan_extend<mode>xf4_i387): New patterns
        to correctly model move of constant 1.0 to top stack slot.
        (*tandf3_1, *tansf3_1, *tanxf3_1): Remove insn patterns.
        (unnamed peephole2 pattern): Remove corresponding peephole2
        pattern that optimizes tan insn and loading of constant 1.0.
        (tanxf2): Use fptanxf4_i387.
        (tan<mode>2): Rename from tansf2 and tandf2 and macroize insn
        patterns using X87MODEF12 mode macro.  Use fptan_extend<mode>xf4_i387
        and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
        disable patterns for SSE math.
        (sincos<mode>3): Use truncxf<mode>2_i387_noop for truncation.
        (fyl2x_extend<mode>xf3_i387): Use X87MODEF12 for operand 1.

2007-01-18  Dirk Mueller  <dmueller@suse.de>
            Richard Guenther <rguenther@suse.de>

        PR diagnostic/8268
        * doc/invoke.texi (Warray-bounds): Document -Warray-bounds.
        * common.opt (Warray-bounds): Add new warning option.
        * c-opts.c (c_common_handle_option): Define -Warray-bounds
        if -Wall is given.
        * Makefile.in: make tree-vrp.o depend on toplev.h
        * tree-vrp.c (vrp_finalize): Call check_array_refs if -Warray-bounds
        is enabled.
        (check_array_refs, check_array_bounds, check_array_ref): New.

2007-01-18  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-ccp.c (ccp_finalize): Return if something changed.
        (execute_ssa_ccp): Return flags conditionally.
        * tree-ssa-propagate.c (substitue_and_fold): Return if something was
        changed.
        * tree-ssa-propagate.h (substitute_and_fold): Update prototype.

2007-01-18  Steven Bosscher  <steven@gcc.gnu.org>

        * cfgcleanup.c (cleanup_cfg): Detect cfglayout mode and set
        the CLEANUP_CFGLAYOUT flag when in cfglayout mode.

        * Makefile.c (GTFILES): Add cfglayout.h.
        * gengtype.c (open_base_files): Likewise.
        * cfglayout.c (cfg_layout_function_footer,
        cfg_layout_function_header) Reindent to make gengtype happy.
        * cfglayout.h (cfg_layout_function_footer,
        cfg_layout_function_header): Add GTY(()) marker.

        * ifcvt.c (noce_try_sign_mask): Make sure INSN_B is non-null.

2007-01-18  Ben Elliston  <bje@au.ibm.com>

        * genautomata.c (write_automata): Include xstrerror output in the
        error message if writing the DFA description file fails.

2007-01-17  H.J. Lu  <hongjiu.lu@intel.com>

        * config/mips/mips-protos.h (mips_output_external): Make it
        return void.
        * config/mips/iris.h (TARGET_ASM_EXTERNAL_LIBCALL): Removed.
        * config/mips/mips.c (irix_output_external_libcall): Likewise.
        (extern_list): Likewise.
        (extern_head): Likewise.
        (TARGET_ASM_FILE_END): Likewise.
        (mips_file_end): Likewise.
        (mips_output_external): Rewritten.

2007-01-18  Ben Elliston  <bje@au.ibm.com>

        * genpreds.c (write_insn_preds_c): Only write out the function
        body for regclass_for_constraint if we have register constraints.

2007-01-17  Tom Tromey  <tromey@redhat.com>

        * doc/sourcebuild.texi (libgcj Tests): Use sourceware.org.
        * doc/install.texi (Testing): Use sourceware.org.
        (Binaries): Likewise.
        (Specific): Likewise.
        * doc/contrib.texi (Contributors): Use sourceware.org.

2007-01-17  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (AVR_HAVE_LPMX): New macro.
        (AVR_ENHANCED): Rename to ...
        (AVR_HAVE_MUL): ... new.
        (avr_enhanced_p): Rename to ...
        (avr_have_mul_p): ... new.
        (TARGET_CPU_CPP_BUILTINS): Use 'avr_have_mul_p' instead of
        'avr_enhanced_p' for "__AVR_ENHANCED__". Define "__AVR_HAVE_MUL__".
        * config/avr/avr.c (avr_enhanced_p): Rename to ...
        (avr_have_mul_p): ... new.
        (base_arch_s): Rename 'enhanced' to 'have_mul'.
        (avr_override_options): Use 'avr_have_mul_p' and 'have_mul' instead of
        'avr_enhanced_p' and 'enhanced'.
        (ashlhi3_out, ashrhi3_out, lshrhi3_out, avr_rtx_costs): Use
        AVR_HAVE_MUL instead of AVR_ENHANCED.
        * avr.md (*tablejump_enh): Use AVR_HAVE_LPMX instead of AVR_ENHANCED.
        (mulqi3, *mulqi3_enh, *mulqi3_call, mulqihi3, umulqihi3, mulhi3,
        *mulhi3_enh, *mulhi3_call, mulsi3, *mulsi3_call): Use AVR_HAVE_MUL
        instead of AVR_ENHANCED.
        (*tablejump_enh): Use AVR_HAVE_LPMX instead of AVR_ENHANCED.
        * libgcc.S: Use __AVR_HAVE_MUL__ instead of __AVR_ENHANCED__.
        (__tablejump__): Use __AVR_HAVE_LPMX__ instead of __AVR_ENHANCED__.

2007-01-17  Ian Lance Taylor  <iant@google.com>

        * vec.h (VEC_reserve_exact): Define.
        (vec_gc_p_reserve_exact): Declare.
        (vec_gc_o_reserve_exact): Declare.
        (vec_heap_p_reserve_exact): Declare.
        (vec_heap_o_reserve_exact): Declare.
        (VEC_OP (T,A,reserve_exact)): New static inline function, three
        versions.
        (VEC_OP (T,A,reserve)) [all versions]: Remove handling of
        negative parameter.
        (VEC_OP (T,A,alloc)) [all versions]: Call ...reserve_exact.
        (VEC_OP (T,A,copy)) [all versions]: Likewise.
        (VEC_OP (T,a,safe_grow)) [all versions]: Likewise.
        * vec.c (calculate_allocation): Add exact parameter.  Change all
        callers.
        (vec_gc_o_reserve_1): New static function, from vec_gc_o_reserve.
        (vec_gc_p_reserve, vec_gc_o_reserve): Call vec_gc_o_reserve_1.
        (vec_gc_p_reserve_exact, vec_gc_o_reserve_exact): New functions.
        (vec_heap_o_reserve_1): New static function, from vec_heap_o_reserve.
        (vec_heap_p_reserve, vec_heap_o_reserve): Call vec_heap_o_reserve_1.
        (vec_heap_p_reserve_exact): New function.
        (vec_heap_o_reserve_exact): New function.

2007-01-17  Jan Hubicka  <jh@suse.cz>

        * ipa-type-escape.c (look_for_casts): Revamp using handled_component_p.

2007-01-17  Eric Christopher  <echristo@apple.com>

        * config.gcc: Support core2 processor.

2007-01-16  Jan Hubicka  <jh@suse.cz>

        * tree-ssanames.c (release_dead_ssa_names): Instead of ggc_freeing
        the names, just unlink the chain so we don't crash on dangling pointers
        to dead SSA names.

2007-01-16  Jan Hubicka  <jh@suse.cz>

        * cgraph.h (cgraph_decide_inlining_incrementally): Kill.
        * tree-pass.h: Reorder to make IPA passes appear toegher.
        (pass_early_inline, pass_inline_parameters, pass_apply_inline): Declare.
        * cgraphunit.c (cgraph_finalize_function): Do not compute inling
        parameters, do not call early inliner.
        * ipa-inline.c: Update comments.  Include tree-flow.h
        (cgraph_decide_inlining): Do not compute inlining parameters.
        (cgraph_decide_inlining_incrementally): Return TODOs; assume to
        be called with function context set up.
        (pass_ipa_inline): Remove unreachable functions before pass.
        (cgraph_early_inlining): Simplify assuming to be called from the
        PM as local pass.
        (pass_early_inline): New pass.
        (cgraph_gate_ipa_early_inlining): New gate.
        (pass_ipa_early_inline): Turn into simple wrapper.
        (compute_inline_parameters): New function.
        (gate_inline_passes): New gate.
        (pass_inline_parameters): New pass.
        (apply_inline): Move here from tree-optimize.c
        (pass_apply_inline): New pass.
        * ipa.c (cgraph_remove_unreachable_nodes): Verify cgraph after
        transforming.
        * tree-inline.c (optimize_inline_calls): Return TODOs rather than
        doing them by hand.
        (tree_function_versioning): Do not allocate dummy struct function.
        * tree-inline.h (optimize_inline_calls): Update prototype.
        * tree-optimize.c (execute_fixup_cfg): Export.
        (pass_fixup_cfg): Remove
        (tree_rest_of_compilation): Do not apply inlines.
        * tree-flow.h (execute_fixup_cfg): Declare.
        * Makefile.in (gt-passes.c): New.
        * passes.c: Include gt-passes.h
        (init_optimization_passes): New passes.
        (nnodes, order): New static vars.
        (do_per_function_toporder): New function.
        (execute_one_pass): Dump current pass here.
        (execute_ipa_pass_list): Don't dump current pass here.

2007-01-16  Janis Johnson  <janis187@us.ibm.com>

        * config/dfp-bit.c (dfp_compare_op): Return separate value for NaN.
        (DFP_NE, DFP_LE, DFP_GE): Return false for NaN.

2007-01-16  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/darwin-ldouble.c: Build file for SOFT_FLOAT.
        (strong_alias): Define.
        (__gcc_qmul): Provide non-FMA for soft-float.
        (__gcc_qdiv): Same.
        (__gcc_qneg): New.
        (__gcc_qeq): New.
        (__gcc_qle): New.
        (__gcc_qge): New.
        (__gcc_qunord): New.
        (__gcc_stoq): New.
        (__gcc_dtoq): New.
        (__gcc_qtos): New.
        (__gcc_qtod): New.
        (__gcc_qtoi): New.
        (__gcc_qtou): New.
        (__gcc_itoq): New.
        (__gcc_utoq): New.
        (fmsub): New.
        * config/rs6000/rs6000.c (rs6000_init_libfuncs): Initialize
        soft-float functions.
        * config/rs6000/libgcc-ppc-glibc.ver: Version soft-float symbols.
        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Do not warn
        about long double soft float.

2007-01-16  Dorit Nuzman  <dorit@il.ibm.com>
            Tehila Meyzels  <tehila@il.ibm.com>

        * tree-vectorizer.h (is_pattern_stmt_p): New.
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Fix
        formatting (tabs instead of spaces). Cleanup and clarify setting
        of STMT_VINFO_VECTYPE. Call is_pattern_stmt_p.
        * tree-vect-transform.c (vect_get_vec_def_for_operand): Fix typo.
        (vectorizable_type_demotion): Check that types are integral.
        (vectorizable_type_promotion): Likewise.
        (vectorizable_store): Fix typo.  Eliminate new-line at end of
        comments.

2007-01-16  Jan Hubicka  <jh@suse.cz>

        * tree-ssanames.c (release_dead_ssa_names): Remove invalidated
        cgraph edges too.

2007-01-15  Eric Christopher  <echristo@apple.com>

        * ifcvt.c: Include vec.h, vecprim.h.
        (check_cond_move_block): New argument regs.
        Reorganize. Add registers used to regs.
        (cond_move_process_if_block): Use regs set above as
        loop bounds.

2007-01-15  Eric Christopher  <echristo@apple.com>

        * config/darwin.h: Update copyright.
        (TARGET_OPTION_TRANSLATE_TABLE): Add umbrella.
        (LINK_COMMAND_SPEC): Add -u.
        (LINK_SPEC): Fix umbrella for above.

2007-01-15  Joseph S. Myers  <joseph@codesourcery.com>

        * config/soft-fp/op-common.h, config/soft-fp/op-4.h: Update from
        glibc CVS.

2007-01-15  Tom Tromey  <tromey@redhat.com>

        * doc/sourcebuild.texi (libgcj Tests): Don't mention jacks.
        * doc/install.texi (Testing): Don't mention jacks.
        (Configuration): Document --enable-java-maintainer-mode.  Move
        --with-java-home to libgcj-specific section.  Document
        --with-ecj-jar.
        (Prerequisites): Mention --enable-java-maintainer-mode, ecj1.

2007-01-15  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-dce.c (DCE_TODOs): New.
        (propagate_necessity): Return if something changed.
        (eliminate_unnecessary_stmts): Likewise.
        (perform_tree_ssa_dce): Return TODO flags when needed.
        (pass_dce, pass_dce_loop, pass_cd_dce): Remove TODO flags.

2007-01-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (fyl2xxf3_i387): Rename from fyl2x_xf3.
        (fyl2x_extend<mode>xf3_i387): New insn pattern.
        (log<mode>2): Rename from logsf2 and logdf2 and macroize insn
        patterns using X87MODEF12 mode macro.  Extend operand 1
        to XFmode. Use SSE_FLOAT_MODE_P to disable patterns for SSE math.
        (log10<mode>2): Ditto.
        (log2<mode>2): Ditto.
        (log1p<mode>2): Ditto.
        (logb<mode>2): Ditto.
        (fyl2xp1xf3_i387): Rename from fyl2xp1_xf3.
        (fyl2xp1_extend<mode>xf3_i387): New insn pattern.
        (*fxtractxf3_i387): Rename from *fxtractxf3.
        (fxtract_extend<mode>xf3_i387): New insn pattern.
        (ilogbsi2): Use match_dup 3, not match_operand:XF 3.
        * config/i386/i386.c (ix86_emit_i387_log1p): Use gen_fyl2xp1xf3_i387()
        and gen_fyl2xxf3_i387().

2007-01-14  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-unswitch.c (unswitch_loop): Do not call fix_loop_placement.
        * cfgloopmanip.c (fix_loop_placement): Made static.  Use
        get_loop_exit_edges.  Changed return type to bool.
        * cfgloop.h (fix_loop_placement): Declaration removed.

2007-01-14  Dorit Nuzman  <dorit@il.ibm.com>

        * param.h (MIN_VECT_LOOP_BOUND): New.
        * params.def (MIN_VECT_LOOP_BOUND): New.
        * tree-vectorizer.c (slpeel_tree_peel_loop_to_edge): Takes another
        argument - minimum threshold for number of iterations.
        * tree-vectorizer.h (slpeel_tree_peel_loop_to_edge): Add another
        argument to declaration.
        * tree-vect-analyze.c (vect_analyze_operations): Check value of
        MIN_VECT_LOOP_BOUND.
        * tree-vect-transform.c (vect_do_peeling_for_loop_bound): Call
        slpeel_tree_peel_loop_to_edge with additional argument.
        (vect_do_peeling_for_alignment): Likewise.
        * doc/invoke.texi (min-vect-loop-bound): Document new param option.

2007-01-14  Uros Bizjak  <ubizjak@gmail.com>

        PR target/30413
        * config/i386/i386.c (print_operand) ['z']: Output 'b' for
        operands of size 1.

2007-01-14  Jan Hubicka  <jh@suse.cz>

        * tree-dfa.c (remove_referenced_var): New function.
        * tree-ssa-live.c (remove_unused_locals): Walk referenced vars and
        prune referenced vars list too.
        * tree-flow.h (remove_referenced_var): Declare.

2007-01-14  Jan Hubicka  <jh@suse.cz>

        * tree-eh.c (add_stmt_to_eh_region_fn): Do not add call_exprs
        separately.
        (remove_stmt_from_eh_region_fn): Do not remove call_exprs.
        (verify_eh_throw_stmt_node, verify_eh_throw_table_statements): Kill.
        * except.h (verify_eh_throw_table_statements): Kill prototype.
        * cfgexpand.c (expand_gimple_basic_block): Propagate Eh regions
        into call exrepssions.
        * tree-optimize.c (execute_free_cfg_annotatiosn): Do not call
        eh trhow verifier.
        * tree-cfg.c: Include pointer-set.h.
        (verify_node_sharing): Work on pointer set.
        (verify_eh_throw_stmt_node): New.
        (verify_stmts): Use pointers sets, verify throw_stmt.

2007-01-13  Zdenek Dvorak <dvorakz@suse.cz>

        * ipa-reference.c (analyze_function): Consider also addresses taken
        in phi nodes.

2007-01-12  Roger Sayle  <roger@eyesopen.com>

        * c-typeck.c (null_pointer_constant_p): Replace use of
        TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
        (build_c_cast): Likewise.

2007-01-12  Roger Sayle  <roger@eyesopen.com>

        * tree.h (force_fit_type_double): Remove unused final argument.
        * c-common.c (constant_expression_warning): Replace use of
        TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
        (convert_and_check): Likewise.
        (shorten_compare): Update call to force_fit_type_double.
        (c_common_truthvalue_conversion) <INTEGER_CST>: Use integer_zerop.
        * convert.c (convert_to_pointer): Update call to
        force_fit_type_double.
        * fold-const.c (force_fit_type_double): Remove overflowed_const
        argument.
        (int_const_binop, fold_convert_const_int_from_int,
        fold_convert_const_int_from_real, fold_div_compare,
        fold_sign_changed_comparison, fold_unary, fold_negate_const,
        fold_abs_const, fold_not_const): Remove the final argument from
        calls to force_fit_type_double.

2007-01-12  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * configure.ac: Set insn to "nop" for spu-*-* also.
        * configure: Regenerate.

2007-01-12  Olga Golovanevsky  <olga@il.ibm.com>

        * builtins.def : Add BUILT_IN_FREE.

2007-01-12  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/30443
        * tree-inline.c (tree_function_versioning): Do not optimize when
        cloning for inlining.

2007-01-12  Zdenek Dvorak <dvorakz@suse.cz>

        * doc/loop.texi: Document recording of loop exits.
        * cfgloopmanip.c (loopify, duplicate_loop): Use alloc_loop.
        (update_single_exits_after_duplication,
        update_single_exit_for_duplicated_loop,
        update_single_exit_for_duplicated_loops): Removed.
        (duplicate_loop_to_header_edge): Do not call
        update_single_exits_after_duplication and
        update_single_exit_for_duplicated_loops.
        (loop_version): Do not update single_exit information.
        (fix_loop_structure): Use record_loop_exits instead of
        mark_single_exit_loops.
        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Update
        the lists of loop exits.
        * cfghooks.c (redirect_edge_and_branch, redirect_edge_and_branch_force,
        split_edge, merge_blocks): Update the lists of loop exits.
        * modulo-sched.c (sms_schedule): Pass LOOPS_HAVE_RECORDED_EXITS to
        loop_optimizer_init.
        * loop-init.c (loop_optimizer_init): Call record_loop_exits instead
        of mark_single_exit_loops.
        (loop_optimizer_finalize): Call release_recorded_exits.
        * tree-ssa-loop.c (tree_loop_optimizer_init): Pass
        LOOPS_HAVE_RECORDED_EXITS to loop_optimizer_init.
        * tree-vectorizer.c (slpeel_tree_duplicate_loop_to_edge_cfg): Do not
        update single exit information.
        * lambda-code.c (perfect_nestify): Ditto.
        * cfgloop.c (flow_loop_free): Destroy the list of exits of the loop.
        (mark_single_exit_loops): Removed.
        (alloc_loop, loop_exit_hash, loop_exit_eq, loop_exit_free,
        get_exit_descriptions, rescan_loop_exit, record_loop_exits,
        dump_recorded_exit, dump_recorded_exits, release_recorded_exits): New
        functions.
        (get_loop_exit_edges, single_exit): Use recorded exit lists.
        (add_bb_to_loop, remove_bb_from_loops): Update the lists of loop exits.
        (verify_loop_structure): Verify consistency of the exit lists.
        (flow_loops_find): Use alloc_loop.  Initialize exits hash.
        (set_single_exit): Removed.
        * cfgloop.h (struct loop_exit): New function.
        (struct loop): single_exit_ field replaced by exits field.
        (LOOPS_HAVE_MARKED_SINGLE_EXITS): Replaced by LOOPS_HAVE_RECORDED_EXITS.
        (struct loops): Added exits hash.
        (mark_single_exit_loops, set_single_exit): Declaration removed.
        (release_recorded_exits, record_loop_exits, rescan_loop_exit): Declare.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Avoid use of @headitem.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * cse.c (cse_insn): Move HAVE_CC0 code after declarations.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * doc/install.texi: Fix m68k-*-* anchor and add m68k-*-* to the
        list of targets.

2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Document -mno-bitfield, -mno-rtd and -mno-short.
        * config/m68k/m68k.opt: Resort options.
        (mbitfield, mrtd, mshort): Remove RejectNegative properties.

2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Document the macros that are defined by
        m68k's -mtune and -mhard-float options.
        * config/m68k/m68k-protos.h (m68k_cpp_cpu_ident) Declare.
        (m68k_cpp_cpu_family): Likewise.
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Add a full set
        of __ucfv*__ macros.  Define __mcffpu__ if generating code for
        ColdFire FPUs.  Define __mcf_cpu_* and __mcf_family_* macros.
        * config/m68k/m68k.c (m68k_cpp_cpu_ident): New function.
        (m68k_cpp_cpu_family): Likewise.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Treat all mc68*
        macros besides mc68000 as tuning macros.  Use a switch statement
        to set them and mcpu32.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h: Use TARGET_68040 instead of TARGET_68040_ONLY.
        (TARGET_68040_ONLY): Rename to...
        (TARGET_68040): ...this.
        * config/m68k/m68k.c: Use TARGET_68040 instead of TARGET_68040_ONLY.
        * config/m68k/m68k.md: Likewise.

2007-01-12  Julian Brown  <julian@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m680[012]0-*-*, m68k*-*-*): Set m68k_cpu_ident to
        the -mcpu= argument associated with the --with-cpu setting.
        Define M68K_DEFAULT_TUNE to the default -mtune= option,
        if different from the one implied by the -mcpu setting.
        Accept --with-cpu=FOO if FOO is listed in m68k-devices.def,
        using mcpu=FOO as the default CPU option.  Set target_cpu_default2.
        * doc/invoke.texi: Mention ColdFire in the introduction to the
        m68k options.  Document the new -march, -mcpu, -mtune, -mdiv,
        -mno-div and -mhard-float options.  Make -m68881 a synonym for
        -mhard-float.  Document the previously-undocumented -m5206e,
        -m528x, -m5307 and -m5407 options.  Tweak the existing option
        documentation for consistency.
        * doc/install.texi: Mention new --with-cpu arguments.
        * config/m68k/m68k.h (OPTION_DEFAULT_SPECS): Only use the
        default CPU if neither -mcpu nor -march are specified.
        (ASM_CPU_SPEC): Pass down -mcpu and -march options.
        (TARGET_CPU_CPP_BUILTINS): Set __mcfisa*__ macros from
        TARGET_ISA*.  Set the legacy __mcf*__ cpu macros in the same way,
        using m68k_tune to decide between families that implement the
        same ISA.  Use m68k_tune to set __mcfv4e__.
        (FL_BITFIELD, FL_68881, FL_COLDFIRE, FL_CF_HWDIV, FL_CF_MAC)
        (FL_CF_EMAC, FL_CF_EMAC_B, FL_CF_USP, FL_CF_FPU, FL_ISA_68000)
        (FL_ISA_68010, FL_ISA_68020, FL_ISA_68040, FL_ISA_A, FL_ISA_B)
        (FL_ISA_C, FL_ISA_MMU): New macros.
        (MASK_COLDFIRE): Delete.
        (TARGET_68010, TARGET_68020, TARGET_68040_ONLY, TARGET_COLDFIRE)
        (TARGET_ISAB): Redefine in terms of m68k_cpu_flags.
        (TARGET_68881, TARGET_COLDFIRE_FPU): Redefine in terms of m68k_fpu.
        (TARGET_HARD_FLOAT): Do not define here.
        (TARGET_ISAAPLUS, TARGET_ISAC): New macros.
        (TUNE_68000): New macro.
        (TUNE_68000_10): Redefine in terms of TUNE_68000 and TUNE_68010.
        (TUNE_68010, TUNE_68030, TUNE_68040, TUNE_68060, TUNE_CPU32)
        (TUNE_CFV2): Redefine in terms of m68k_tune.
        (uarch_type, target_device, fpu_type): New enums.
        (m68k_cpu, m68k_tune, m68k_fpu, m68k_cpu_flags): Declare.
        * config/m68k/m68k.c (TARGET_DEFAULT): Remove MASK_68881.
        (FL_FOR_isa_00, FL_FOR_isa_10, FL_FOR_isa_20, FL_FOR_isa_40)
        (FL_FOR_isa_cpu32, FL_FOR_isa_a, FL_FOR_isa_aplus, FL_FOR_isa_b)
        (FL_FOR_isa_c): New macros.
        (m68k_isa): New enum.
        (m68k_target_selection): New structure.
        (all_devices, all_isas, all_microarchs): New tables.
        (m68k_cpu_entry, m68k_arch_entry, m68k_tune_entry, m68k_cpu)
        (m68k_tune, m68k_fpu, m68k_cpu_flags): New variables.
        (MASK_ALL_CPU_BITS): Delete.
        (m68k_find_selection): New function.
        (m68k_handle_option): Handle -mcpu=, -march= and -mtune=.
        Map the legacy target options to a combination of the new ones.
        (override_options): Set m68k_cpu, m68k_tune, m68k_fpu and
        m68k_cpu_flags.  Handle M68K_DEFAULT_TUNE.  Use m68k_cpu_flags
        to derive default MASK_BITFIELD, MASK_CF_HWDIV and MASK_HARD_FLOAT
        settings.
        * config/m68k/m68k.opt (m5200, m5206e, m528x, m5307, m5407, mcfv4e)
        (m68010, m68020, m68020-40, m68020-60, m68030, m68040): Remove Mask
        properties.
        (m68881, msoft-float): Change mask from 68881 to HARD_FLOAT.
        (march=, mcpu=, mdiv, mhard-float, mtune=): New options.
        * config/m68k/m68k-devices.def: New file.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/m68k.h (ASM_CPU_SPEC, ASM_SPEC, EXTRA_SPECS)
        (SUBTARGET_EXTRA_SPECS): New macros.
        * config/m68k/linux.h (ASM_SPEC): Remove CPU flags;
        use %(asm_cpu_spec) instead.
        * config/m68k/m68k-none.h (ASM_SPEC): Likewise.
        * config/m68k/openbsd.h (ASM_SPEC): Likewise.
        * config/m68k/netbsd-elf.h (ASM_SPEC): Likewise.
        (EXTRA_SPECS): Rename to...
        (SUBTARGET_EXTRA_SPECS): ...this.

2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>

        * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
        (m68k-*-uclinux*, m68k-*-linux*, m68k-*-rtems*): Set default_m68k_cpu
        to the configuration's default CPU.
        (m68010-*-netbsdelf*, m68k*-*-netbsdelf*, m68k*-*-openbsd*): Likewise.
        Remove default masks.
        (m680[012]0-*-*): Set the default with_cpu to the first part of
        the target name.
        (m68k*-*-*): Set the default with_cpu to m$default_m68k_cpu.
        (m68k*-*-linux): Extend the --with-cpu handling to...
        (m680[012]0-*-*, m68k*-*-*): ...these configurations.  Allow m68000
        and m68010.  Don't set target_cpu_default2.
        * doc/install.texi: Document --with-cpu for m68k.
        * config/m68k/m68k.h (OPTION_DEFAULT_SPECS): Define.
        * config/m68k/m68k-none.h (TARGET_CPU_DEFAULT, M68K_CPU_m68k)
        (M68K_CPU_m68000, M68K_CPU_m68010, M68K_CPU_m68020, M68K_CPU_m68030)
        (M68K_CPU_m68040, M68K_CPU_m68302, M68K_CPU_m68332, TARGET_DEFAULT)
        (ASM_CPU_DEFAULT_SPEC, CC1_CPU_DEFAULT_SPEC): Delete.
        (ASM_SPEC): Remove use of %(asm_cpu_default).
        (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS, MULTILIB_DEFAULTS): Delete.
        * config/m68k/linux.h (TARGET_DEFAULT): Delete.
        (CPP_SPEC): Merge definitions.  Do not handle __HAVE_68881__ here.
        * config/m68k/netbsd-elf.h (TARGET_OS_CPP_BUILTINS): Define
        __HAVE_FPU__ if TARGET_HARD_FLOAT.
        (TARGET_DEFAULT): Delete.
        (EXTRA_SPECS): Delete cpp_cpu_default_spec, cpp_cpu_spec,
        cpp_fpu_spec, asm_default_spec and netbsd_cpp_spec.
        (CPP_CPU_SPEC): Delete.
        (TARGET_VERSION): Merge definitions, using TARGET_68010 to pick
        the appropriate string.
        (CPP_CPU_DEFAULT_SPEC, ASM_DEFAULT_SPEC, CPP_FPU_SPEC): Delete.
        (CPP_SPEC): Define to NETBSD_CPP_SPEC.
        (ASM_SPEC): Don't use %(asm_default_spec).
        * config/m68k/m68k.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
        TARGET_DEFAULT and add MASK_68881.
        * config/m68k/m68k.md: Remove mention of TARGET_DEFAULT from comments.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68010-*-netbsdelf*): Add MASK_68010.
        (m68k*-*-netbsdelf*, m68k*-*-openbsd*, m68k*-linux*): Add
        MASK_68010 alongside MASK_68020.
        * doc/invoke.texi: Document -m68010.
        * config/m68k/m68k.opt (m68010): New.
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define mc68010
        if TUNE_68010.
        (TUNE_68010): New macro.
        * config/m68k/m68k-none.h (M68K_CPU_m68k, M68K_CPU_m68010)
        (M68K_CPU_m68020, M68K_CPU_m68030, M68K_CPU_m68040)
        (M68K_CPU_m68332): Add MASK_68010.
        * config/m68k/linux.h (TARGET_DEFAULT): Add MASK_68010 to
        fallback definition.
        * config/m68k/netbsd-elf.h (CPP_CPU_SPEC): Remove now-redundant
        defines.
        * config/m68k/m68k.c (MASK_ALL_CPU_BITS): Add MASK_68010.
        (m68k_handle_option): Handle OPT_m68010.  Add MASK_68010
        to all entries that use MASK_68020.
        (output_move_simode_const, output_move_himode, output_move_qimode)
        (output_move_stricthi, output_move_strictqi): Use TARGET_68010
        instead of TARGET_68020 to select clr behavior.  Remove comment
        about there being no TARGET_68010.
        * config/m68k/m68k.md: Likewise throughout.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (TARGET_ISAB): New macro.
        * config/m68k/m68k.c: Use TARGET_ISAB rather than TARGET_CFV4.
        * config/m68k/m68k.md: Likewise.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (LEGITIMATE_INDEX_P, LEGITIMIZE_ADDRESS): Use
        TARGET_COLDFIRE_FPU instead of TARGET_CFV4E.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (TUNE_68040_60): New macro.
        * config/m68k/m68k.c (standard_68881_constant_p): Use it.
        * config/m68k/m68k.md: Likewise.

2007-01-12  Julian Brown  <julian@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Use TUNE_68030
        instead of TARGET_68030, TUNE_68040 instead of TARGET_68040,
        TUNE_68060 instead of TARGET_68060 and TUNE_CPU32 instead of
        TARGET_CPU32.
        (TARGET_CPU32): Rename to...
        (TUNE_CPU32): ...this.
        (TUNE_68000_10, TUNE_68030, TUNE_68040, TUNE_68060)
        (TUNE_CFV2): New macros.
        * config/m68k/netbsd-elf.h (LONG_DOUBLE_TYPE_SIZE): Simplify;
        remove conditions that are implied by TARGET_68020.
        * config/m68k/m68k.c (m68k_output_function_prologue): Use TUNE_68040
        instead of TARGET_68040 and TUNE_CPU32 instead of TARGET_CPU32.
        (m68k_output_function_epilogue): Likewise.
        (m68k_rtx_costs): Likewise.  Use TUNE_68060 instead of TARGET_68060
        and TUNE_CFV2 instead of TARGET_5200.  Use TUNE_68000_10 instead of
        "!TARGET_68020 && !TARGET_COLDFIRE" to choose between 68000 and
        non-68000 timings.  Refactor multiplication and division costs.
        (output_addsi3): Use TUNE_68040 instead of TARGET_68040 and
        TUNE_CPU32 instead of TARGET_CPU32.
        (standard_68881_constant_p): Use TUNE_68040 instead of TARGET_68040
        and TUNE_68060 instead of TARGET_68060.
        * config/m68k/m68k.md: Use TUNE_68040 instead of TARGET_68040,
        TUNE_68060 instead of TARGET_68060, and TUNE_CPU32 instead of
        TARGET_CPU32.
        (movsi_const0): Use TUNE_68000_10 rather than "!TARGET_68020
        && !TARGET_COLDFIRE" to choose between moveq and clr.
        Likewise in the unnamed movsf pattern.
        (ashlsi_17_24, lshrsi_17_24): Guard with TUNE_68000_10 rather than
        "!TARGET_68020 && !TARGET_COLDFIRE".  Likewise the unnamed
        ashiftrt pattern.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Increase amount
        of tabbing before backslashes.

2007-01-11  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa-linux.h (ASM_OUTPUT_INTERNAL_LABEL): Undefine.
        * pa.h (ASM_OUTPUT_LABEL): Output colon when using GAS.
        (ASM_OUTPUT_INTERNAL_LABEL): Define.

2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-ivopts.c (extract_cond_operands): Split from
        find_interesting_uses_cond.
        (find_interesting_uses_cond): Use extract_cond_operands.
        (rewrite_use_compare): Use extract_cond_operands and
        force_gimple_operand_bsi.  Do not call update_stmt.
        (determine_use_iv_cost_condition): Use extract_cond_operands.
        Return cheaper of using original bound and changing the exit bound.

2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/29516
        * tree-ssa-address.c (tree_mem_ref_addr, add_to_parts,
        most_expensive_mult_to_index, addr_to_parts,
        create_mem_ref, maybe_fold_tmr): Make the type of
        fields of TARGET_MEM_REF sizetype.
        (move_fixed_address_to_symbol, move_pointer_to_base):
        New functions.
        * tree.def (TARGET_MEM_REF): Add comment on types of
        the operands.

2007-01-11  Joseph Myers  <joseph@codesourcery.com>

        * c-common.c (vector_types_convertible_p): Treat opaque types as
        always convertible if they have the same size, but not otherwise.

2007-01-11  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (struct noce_if_info): Add comments to the fields.
        Remove the b_unconditional field.
        (noce_try_sign_mask): Do not look at b_unconditional.
        (noce_process_if_block): Do not use merge_if_blocks.  Update
        the CFG here.  Do not set b_unconditional.
        (cond_move_process_if_block): Likewise.
        (find_cond_trap): Likewise.
        (check_cond_move_block): Require simple jump insns at the end
        of the basic block.

2007-01-11  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/1046
        * tree-tailcall.c (suitable_for_tail_call_opt_p): Use TREE_ADDRESSABLE
        when alias info is not ready.
        (pass_tail_recursion): Do not require aliasing.
        * tree-ssa-copyrename.c (pass_rename_ssa_cop): Likewise.
        * tree-ssa-ccp.c (pass_ccp, pass_fold_builtins): Likewise.
        * tree-ssa-copy.c (pass_copy_prop): Likewise.
        * tree-ssa-forwprop.c (pass_forwprop): Likewise.
        * tree-ssa-dce.c (pass_dce, pass_dce_loop, pass_cd_dce): Likewise.
        * passes.c (init_optimization_passes): Execute rename_ssa_copies,
        ccp, forwprop, copy_prop, merge_phi, copy_prop, dce and tail recursion
        before inlining.
        * tree-ssa-operands.c (add_virtual_operand, get_indirect_ref_operand):
        When aliasing is not build, mark statement as volatile.

2007-01-11  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/15185, PR preprocessor/20989:
        * doc/cppopts.texi <-MT>: Update description of algorithm for
        computing default target.
        <-M, -MD>: Reword "basename" text.

2007-01-11  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (expand_builtin_pow, expand_builtin_powi,
        fold_builtin_cabs, fold_builtin_sqrt, fold_builtin_trunc,
        fold_builtin_floor, fold_builtin_ceil, fold_builtin_round,
        fold_builtin_int_int_roundingfn, fold_builtin_bitop,
        fold_builtin_bswap, real_constp, fold_builtin_pow,
        fold_builtin_powi, fold_builtin_signbit, fold_builtin_copysign,
        do_mpfr_arg1, do_mpfr_arg2, do_mpfr_arg3, do_mpfr_sincos): Replace
        uses of the macro TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
        * convert.c (convert_to_pointer): Likewise.
        * expr.c (highest_pow2_factor, expand_expr_real_1): Likewise.
        * fold-const.c (force_fit_type, fold_negate_expr, int_const_binop,
        const_binop, fold_convert_const_int_from_int,
        fold_convert_const_int_from_real,
        fold_convert_const_real_from_real, sign_bit_p,
        optimize_minmax_comparison, extract_muldiv_1, fold_div_compare,
        fold_sign_changed_comparison, fold_unary, fold_comparison,
        fold_binary, multiple_of_p, tree_Expr_non_zero_p,
        fold_negate_const, fold_abs_const, fold_not_const): Likewise.
        * print-tree.c (print_node_brief, print_node): Likewise.
        * stor-layout.c (place_field, layout_type): Likewise.
        * tree-chrec.c (keep_cast): Likewise.
        * tree.c (build_vector, build_real, build_real_from_int_cst,
        build_complex): Likewise.

2007-01-11  Roger Sayle  <roger@eyesopen.com>

        * tree.h (TREE_CONSTANT_OVERFLOW): Obsolete.  For the time being,
        treat TREE_CONSTANT_OVERFLOW as a synonym of TREE_OVERFLOW.

2007-01-11  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac (strict1_warn): Rename to strict_warn.
        (WERROR, --enable-werror, symlink hacks, stage1_cflags,
        cc_set_by_configure, quoted_cc_set_by_configure,
        stage_prefix_set_by_configure, quoted_stage_prefix_set_by_configure,
        all_boot_languages, all_stagestuff): Remove.
        (target_list): Remove bootstrap targets.
        * Makefile.in (quickstrap): Unconditionally make a synonym of all.
        (BOOT_LANGUAGES, STAGE1_CFLAGS, STAGE1_CHECKING,
        REMAKEFLAGS, FLAGS_TO_PASS, PREPEND_DOTDOT_TO_RELATIVE_PATHS,
        SUBDIR_FLAGS_TO_PASS, WERROR_FLAGS, STRICT2_WARN, LANG_STAGESTUFF,
        VOL_FILES, POSTSTAGE1_FLAGS_TO_PASS, STAGE2_FLAGS_TO_PASS,
        STAGEPROFILE_FLAGS_TO_PASS, STAGEFEEDBACK_FLAGS_TO_PASS, stage1_build,
        stage1_copy, stage2_build, stage2_copy, stageprofile_build,
        stageprofile_copy, stage3_build, stage3_copy, stagefeedback_build,
        stagefeedback_copy, stage4_build, clean_s1, clean_sw, bootstrap,
        bootstrap-lean, bootstrap2, bootstrap2-lean, bootstrap3,
        bootstrap3-lean, bootstrap4, bootstrap4-lean, unstage1, unstage2,
        unstage3, unstage4, unstageprofile, unstagefeedback, restage, restage2,
        restage3, restage4, restageprofile, restagefeedback, bubbleestrap,
        cleanstrap, unstrap, restrap, *compare, *compare3, *compare4,
        *compare-lean, *compare3-lean, *compare4-lean, stage1-start, stage1,
        stage2-start, stage2, stage3-start, stage3, stage4-start, stage4,
        stageprofile-start, stageprofile, stagefeedback-start, stagefeedback,
        risky-stage1, risky-stage2, risky-stage3, risky-stage4): Remove.
        (ORDINARY_FLAGS_TO_PASS): Rename to FLAGS_TO_PASS.
        (STAGECOPYSTUFF, STAGEMOVESTUFF): Consolidate into MOSTLYCLEANFILES.
        (mostlyclean): Adjust.
        (clean, distclean): Don't mention bootstrap stuff.
        * configure: Regenerate.
        * ada/config-lang.in, cp/config-lang.in, forttran/config-lang.in,
        java/config-lang.in, objc/config-lang.in, objcp/config-lang.in,
        treelang/config-lang.in (stagestuff): Remove.
        * doc/sourcebuild.texi (stage1, stage2, stage3, stage4,
        stageprofile, stagefeedback, stagestuff): Remove mention.

2007-01-11  Nick Clifton  <nickc@redhat.com>

        * config/mcore/predicates.md (mcore_general_movesrc_operand):
        Accept CONSTs.
        (mcore_general_movdst_operand): Do not accept CONST_INTs.
        (mcore_arith_K_S_operand): Run the test for the S constraint not
        the test for the M constraint.
        (mcore_addsub_operand): Do not accept integer values that are
        larger than 32 bits.
        * config/mcore/mcore.md: Remove unused constraints from split.
        (andsi3): Use HOST_WIDE_INT instead of int to hold an INTVAL.
        (addsi3): Likewise.
        (allocate_stack): Likewise.
        * config/mcore/mcore.c (mcore_print_operand): Restrict output of P
        operands to 32 bits.
        (mcore_const_costs): Use HOST_WIDE_INT instead of int to hold an
        INTVAL.
        (mcore_and_cost, mcore_modify_comparison, const_ok_for_mcore,
        mcore_const_ok_for_inline, mcore_const_trick_uses_not,
        try_constant_tricks, mcore_num_ones, mcore_num_zeros,
        mcore_output_bclri, mcore_output_andn, output_inline_const,
        mcore_output_move, mcore_output_movedouble): Likewise.
        (mcore_output_cmov): Use CONST_OK_FOR_M and CONST_OK_FOR_N.
        (output_inline_const): Likewise.
        (output_inline_const): Fix format strings used in sprintf
        statements.
        * config/mcore/mcore-protos.h: Update prototypes for changed
        functions in mcore.c.
        * config/mcore/mcore.h (CONST_OK_FOR_I): Cast values to
        HOST_WIDE_INT and not int.
        (CONST_OK_FOR_J, CONST_OK_FOR_K, CONST_OK_FOR_L, CONST_OK_FOR_M,
        CONST_OK_FOR_N): Likewise.
        (LEGITIMATE_CONSTANT_P): Also check CONSTANT_P.
        (GO_IF_LEGITIMATE_INDEX): Use HOST_WIDE_INT instead of int to hold
        an INTVAL.

2007-01-10  Jan Hubicka  <jh@suse.cz>

        * tree-vrp.c (remove_range_assertions): Release defs.
        * tree-ssa-loop-ivopts.c (rmeove_statement): Likewise.
        * tree-ssa-dom.c (remove_stmt_or_phi): Likewise.

2007-01-10  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_rtx_costs_1): Handle mutiply-subtract.
        * config/arm/arm.md (mulsi3subsi): New insn.

2007-01-10  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-manip.c (tree_unroll_loop): Make it a wrapper over ...
        (tree_transform_and_unroll_loop): New.
        * tree-flow.h (transform_callback, tree_transform_and_unroll_loop):
        Declare.

2007-01-10  Robert Kennedy <jimbob@google.com>

        * fold-const.c (fold_comparison): Fold comparisons like (x *
        1000 < 0) to (x < 0).

2007-01-10  Ian Lance Taylor  <iant@google.com>

        * tree-pretty-print.c (dump_generic_node): Print parentheses when
        operands have the same priority.

2007-01-10  Tom Tromey  <tromey@redhat.com>

        * fold-const.c (fold_truthop): Don't check can_use_bit_fields_p.
        (fold_binary): Likewise.
        * langhooks.c (lhd_can_use_bit_fields_p): Removed.
        * langhooks-def.h (lhd_can_use_bit_fields_p): Removed.
        (LANG_HOOKS_CAN_USE_BIT_FIELDS_P): Removed.
        (LANG_HOOKS_INITIALIZER): Remove LANG_HOOKS_CAN_USE_BIT_FIELDS_P.
        * langhooks.h (struct lang_hooks): Removed field
        'can_use_bit_fields_p'.

2007-01-10  Ralf Corsépius <ralf.corsepius@rtems.org>

        * config/bfin/t-bfin, config/bfin/t-bfin-elf: Remove GCC_CFLAGS.

2007-01-10  Razya Ladelsky  <razya@il.ibm.com>

        * function.c (get_last_funcdef_no): New function.
        * function.h (get_last_funcdef_no): Declare.
        * tree-inline.c (initialize_cfun): Add initialization.
        (tree_function_versioning): Cleanup.

2007-01-10  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (setup_one_parameter): Do not propagate into abnormal
        PHIs.

2007-01-10  Sa Liu  <saliu@de.ibm.com>
            Ben Elliston  <bje@au.ibm.com>

        * spu.h (STACK_SAVE_AREA): Use VOIDmode for SAVE_FUNCTION, SImode
        for SAVE_NONLOCAL and Pmode for any other save level.
        * spu-protos.h (spu_restore_stack_block): Declare.
        * spu.md (save_stack_block): Remove.
        (restore_stack_block): Call spu_restore_stack_block.
        * spu.c (spu_restore_stack_block): New function.
        (spu_expand_epilogue): Remove old comment.

2007-01-09  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/30322
        * tree-ssa-loop-ivopts.c (fold_affine_expr, iv_value): Removed.
        (cand_value_at): Return the value as aff_tree.
        (may_eliminate_iv): Convert the bound from aff_tree to tree.
        * tree-affine.c (aff_combination_add_cst, aff_combination_add_product,
        aff_combination_mult): New functions.
        (aff_combination_add): Use aff_combination_add_cst.
        (aff_combination_convert): Allow conversions to a wider type.
        (tree_to_aff_combination): Handle BIT_NOT_EXPR.
        * tree-affine.h (aff_combination_mult): Declare.

2007-01-09  Carlos O'Donell  <carlos@codesourcery.com>

        * doc/tm.texi: Update documentation to reflect reality of exec
        and start file search behaviours. Update copyright year.
        * doc/invoke.texi: Explain how GCC_EXEC_PREFIX is used to find
        header file directories.

2007-01-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*sinxf2): Rename to *sinxf2_i387.
        (*cosxf2): Rename to cosxf2_i387.
        (*sindf2, *sinsf2): Extend operand 1 to XFmode.  Macroize patterns
        using X87MODEF12 mode macro. Rename patterns to
        *sin_extend<mode>xf2_i387.  Use SSE_FLOAT_MODE_P to disable patterns
        for SSE math.
        (*cosdf2, *cossf2): Ditto.
        (sincosdf3, sincossf3): Ditto.  Rewrite corresponding splitters
        to match extended input operands.
        (sincos<mode>3): New expander.
        (*sinextendsfdf2, *cosextendsfdf2, *sincosextendsfdf3): Remove
        insn patterns and corresponding splitters.

2007-01-09  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/t-linux (TARGET_LIBGCC2_CFLAGS): Delete.
        (SHLIB_MAPFILES, SHLIB_LINK, SHLIB_INSTALL): Likewise.

2007-01-09  Nicolas Pitre  <nico@cam.org>

        PR target/30173
        * arm/ieee754-df.S (Lad_s): Also test the low word of X for zero.

2007-01-08  Geoffrey Keating  <geoffk@apple.com>

        * target.h (struct gcc_target): New field library_rtti_comdat.
        * target-def.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): New.
        (TARGET_CXX): Add TARGET_CXX_LIBRARY_RTTI_COMDAT.
        * doc/tm.texi (C++ ABI): Document TARGET_CXX_LIBRARY_RTTI_COMDAT.
        * config/darwin.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): Define.

2007-01-08  Geoffrey Keating  <geoffk@apple.com>

        * doc/invoke.texi (Optimize Options): Correct description of -O0.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * tree.h (force_fit_type_double): Export.
        (force_fit_type): Remove.
        * fold-const.c (force_fit_type_double): New function.
        (force_fit_type): Remove.
        (int_const_binop): Use it.
        (fold_convert_const_int_from_int): Likewise.
        (fold_convert_const_int_from_real): Likewise.
        (fold_div_compare): Likewise.
        (fold_sign_changed_comparison): Likewise.
        (fold_unary): Likewise.
        (fold_negate_const): Likewise.
        (fold_abs_const): Likewise.
        (fold_not_const): Likewise.
        * c-common.c (shorten_compare): Use force_fit_type_double.
        * convert.c (convert_to_pointer): Likewise.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * tree.h (build_int_cst_wide_type): Export.
        * tree.c (build_int_cst_wide_type): New function.
        (build_int_cst_wide): Fix comment.
        * builtins.c (fold_builtin_object_size): Use build_int_cst
        to build -1 or 0 of the correct type.  Use fit_double_type
        to check for overflow.
        * fold-const.c (optimize_bit_field_compare): Use build_int_cst_type
        to build the mask.
        (decode_field_reference): Likewise.
        (all_ones_mask_p): Likewise.
        (native_interpret_int): Use build_int_cst_wide_type.
        (fold_binary): Use build_int_cst_type to build an all-ones
        value.
        * stor-layout.c (set_sizetype): Use build_int_cst_wide_type.

2007-01-08  Daniel Jacobowitz  <dan@codesourcery.com>

        * config/pa/t-pa64 (libgcc_stub.a): Use $(T).

2007-01-09  Ben Elliston  <bje@au.ibm.com>

        * genautomata.c (STATS_OPTION): New option.
        (stats_flag): New flag.
        (gen_automata_option): Handle it.
        (initiate_automaton_gen): Ditto.
        (write_automata): Output statistics only if stats_flag is
        set. Likewise, output time statistics only if time_flag is set.
        * doc/md.texi (Processor pipeline description): Document new flag.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * builtins.c (fold_builtin_int_roundingfn): Use fit_double_type.
        * tree.c (build_int_cst_type): Likewise.
        (size_in_bytes): Don't call force_fit_type on the result.
        (int_fits_type_p): Use fit_double_type.
        * fold-const.c (fit_double_type): New function.
        (force_fit_type): Use it.
        * tree.h (fit_double_type): Export.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * tree-vectorizer.c (gate_increase_alignment): Fix return type.
        * ipa.c (function_and_variable_visibility): Fix return type.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Use type
        of offset to build the index.
        * tree-pretty-print.c (dump_generic_node): Don't build negated
        const just for printing.
        * c-pretty-print.c (pp_c_integer_constant): Likewise.
        * builtins.c (fold_builtin_int_roundingfn): Check if result
        fits the type by using force_fit_type and comparing the result.
        * predict.c (predict_loops): Use compare_tree_int for comparison.
        * tree.c (build_int_cst): Fall back to integer_type_node for
        NULL_TREE type.
        (build_int_cst_wide): Assert type is non-null.

2007-01-08  Roberto Costa  <roberto.costa@st.com>

        * tree-vrp.c (extract_range_from_cond_expr): New.
        (extract_range_from_expr): Handle COND_EXPR nodes used as expressions.
        * tree-ssa-ccp.c (get_maxval_strlen): Handle COND_EXPR nodes used
        as expressions.
        (fold_stmt): Bug fix, avoid infinite recursion when folding COND_EXPRs.
        * tree-ssa-forwprop.c (simplify_cond, forward_propagate_into_cond,
        tree_ssa_forward_propagate_single_use_vars): Handle COND_EXPR nodes
        used as expressions.
        * tree-object-size.c (cond_expr_object_size): New.
        (collect_object_sizes_for): Handle COND_EXPR nodes used as expressions.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-forwprop.c (forward_propagate_into_cond,
        tree_ssa_forward_propagate_single_use_va): Release defs of propagated
        statement.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/23603
        * tree-vrp.c (set_value_range_to_truthvalue): New function.
        (extract_range_from_binary): Fall back to truthvalue instead of
        varying for TRUTH_*_EXPR.
        (extract_range_from_comparison): Fall back to truthvalue instead of
        varying.
        (vrp_visit_phi_node): Don't adjust new range bounds to +INF/-INF
        if all visited PHI values were constant.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (cgraph_process_new_functions): Reset reachable flag.
        (cgraph_analyze_function): break out from ...
        (cgraph_finalize_compilation_unit): ... here.
        (cgraph_expand_function): Remove forgoten commented out line.
        (cgraph_optimize): Analyze functions.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * tree-pas.h (TODO_remove_function): New flag.
        (TODO_update*): Renumber.
        (pass_ipa_increase_alignment,
        pass_ipa_function_and_variable_visibility): New passes.
        * cgraphunit.c (cgraph_increase_alignment): Move to tree-vectorizer.c
        (cgraph_function_and_variable_visibility): Move to ipa.c
        (cgraph_optimize): Don't call cgraph_function_and_variable_visibility,
        cgraph_increase_alignment.
        * ipa-inline.c (cgraph_decide_inlining): Don't push timevar.
        (cgraph_decide_inlining_incrementally): Push TV_INTEGRATION before
        calling tree-inline.
        (cgraph_early_inlining): Do not call cgraph_remove_unreachable_nodes.
        (pass_ipa_inline, pass_early_ipa_inlining): Set TODO_remove_functions
        * tree-vectorizer.c (increase_alignment): Move here from cgraphunit.c
        (gate_increase_alignment): New function.
        (pass_ipa_increase_alignment): New pass.
        * ipa.c: Inline tree-pass.h and timevar.h
        (function_and_variable_visibility): Move here from cgraphunit.c
        * tree-optimize.c (pass_early_local_passes): Add TODO_remove_functions.
        * passes.c (init_optimization_passes): Add the two new passes.
        (execute_todo): Handle cgraph_remove_functions.

2007-01-08  Nick Clifton  <nickc@redhat.com>

        * config/frv/predicates.md (reg_or_0_operand): Accept
        CONST_DOUBLEs.

2007-01-08  Ralf Corsépius <ralf.corsepius@rtems.org>

        * config/bfin/rtems.h, config/bfin/t-rtems: New.
        * config.gcc: Add bfin*-rtems*.

2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>

        * c.opt: Add -flax-vector-conversions.
        * c-typeck.c (convert_for_assignment): Pass flag to
        vector_types_convertible_p to allow emission of note.
        (digest_init): Likewise.
        * c-opts.c: Handle -flax-vector-conversions.
        * c-common.c (flag_lax_vector_conversions): New.
        (vector_types_convertible_p): Unless -flax-vector conversions
        has been passed, disallow conversions between vectors with
        differing numbers of subparts and/or element types.  If such
        a conversion is disallowed, possibly emit a note on the first
        occasion only to inform the user of -flax-vector-conversions.
        The new last argument specifies this.
        * c-common.h (flag_lax_vector_conversions): New.
        (vector_types_convertible_p): Add extra argument.
        * config/i386/i386.c (ix86_init_mmx_sse_builtins): Use
        char_type_node for V*QI type vectors.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins):
        Update to satisfy new typechecking rules.
        * config/rs6000/altivec.h (vec_cmple): Use vec_cmpge, for both
        C and C++ variants.
        * doc/invoke.texi (C Dialect Options): Document
        -flax-vector-conversions.

2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>

        PR tree-optimization/29877
        * tree-ssa-ter.c (is_replaceable_p): Deem assignments with
        a register variable on the RHS to not be replaceable.

2007-01-08  Chen Liqin  <liqin@sunnorth.com.cn>
        * config/score/t-score-elf (MULTILIB_OPTIONS): Change.
        * config/score/predicates.md (const_uimm5, sr0_operand, const_simm12,
        const_simm15, const_pow2, const_npow2): Added.
        * config/score/misc.md (insv, extv, extzv, movmemsi,
        move_lbu_a/b, mov_lhu_a/b etc): Added and fix some bug.
        * config/score/score.c (score_address_cost, score_select_cc_mode):
        Added.
        Change CONST_OK_FOR_LETTER_P/EXTRA_CONSTRAINT define.
        Update score_rtx_costs for MACRO TARGET_RTX_COSTS.
        Update score_print_operand.
        * config/score/score.h (DATA_ALIGNMENT, SELECT_CC_MODE): Added.
        Adjust register allocate order and update some macro define.
        * config/score/score-mdaux.c (mdx_unaligned_load, mdx_unsigned_store,
        mdx_block_move_straight, mdx_block_move_loop_head,
        mdx_block_move_loop_body, mdx_block_move_loop_foot, mdx_block_move_loop,
        mdx_block_move): Added.
        (mdx_movsicc, mdp_select_add_imm, mdp_select, mds_zero_extract_andi,
        mdp_limm): Updated and fix some bug and typo.
        * config/score/score.md (movqi/hi/si, add/sub/zero/ext): Updated.
        (movsf, movdf, doloop_end): Added.

2007-01-08  Kazu Hirata  <kazu@codesourcery.com>

        * config/arm/arm.c, config/arm/arm.h, config/arm/arm.md,
        config/arm/thumb2.md: Fix comment typos.
        * doc/extend.texi: Fix a typo.

2007-01-07  Eric Christopher  <echristo@apple.com>

        * configure.ac: Check for __stack_chk_fail for darwin.
        * configure: Regenerate.

2007-01-07  Richard Guenther  <rguenther@suse.de>

        * tree-vrp.c (extract_range_from_assert): CSE calls to
        compare_values where possible.
        (extract_range_from_unary_expr): Likewise.

2007-01-07  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr-protos.h (call_insn_operand): Delete prototype.
        * config/avr/avr.c (call_insn_operand): Delete function.
        * config/avr/avr.md (*pushqi, *pushhi, *pushsi, *pushsf): Use REG_SP
        instead of register number. Use predicates.
        * config/avr/predicates.md (const0_operand, reg_or_0_operand,
        call_insn_operand): Add.

2007-01-06  Jan Hubicka  <jh@suse.cz>

        * tree-pass.h (pass_build_cgraph_edges): Declare.
        * cgraphunit.c (record_refernece): Move to cgraphbuild.c
        (visited_nodes): Remove.
        (cgraph_create_edges): Move to cgraphbuild.c; rename to
        build_cgrpah_edges; make visited_nodes local.
        (cgraph_process_new_functions): DO not call initialize_inline_failed.
        (record_references_in_initializer): Move to cgraphbuild.c
        (initialize_inline_failed, rebuild_cgraph_edges,
        pass_rebuild_cgraph_edges): Move to cgraphbuild.c.
        (verify_cgraph_node): Make visited_nodes local.
        (cgraph_analyze_function): Do not call cgraph_create_edges and
        initialize_inline_failed.
        (cgraph_expand_function): Do not call cgraph_lower_function;
        assert that function is already lowered.
        * Makefile.in (cgraphbuild.o): New.
        * passes.c (init_optimization_passes): Add pass_build_cgraph_edges
        at the end of lowering passes.

2007-01-06  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (cond_move_convert_if_block): New function, code
        factored out from...
        (cond_move_process_if_block): ...here.  Call the new function
        on the THEN and ELSE blocks.
        (merge_if_block): Do not copy global_live_at_end, merge_blocks
        already takes care of this.

2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/19978
        * tree.h (TREE_OVERFLOW_P): New.
        * c-typeck.c (parser_build_unary_op): Warn only if result
        overflowed and operands did not.
        (parser_build_binary_op): Likewise.
        (convert_for_assignment): Remove redundant overflow_warning.
        * c-common.c (overflow_warning): Don't check or set TREE_OVERFLOW.

2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c-typeck.c (store_init_value): Split over two lines to follow
        the GNU coding style.

2007-01-05  Benjamin Kosnik  <bkoz@redhat.com>

        * c-cppbuiltin.c (c_cpp_builtins): __GXX_EXPERIMENTAL_CPP0X__ to
        __GXX_EXPERIMENTAL_CXX0X__.
        * doc/cpp.texi: Same.

2007-01-05  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27826
        * tree.c (get_narrower): Do not construct COMPONENT_REFs
        with mismatched types.  Instead explicitly build a
        conversion NOP_EXPR.

2007-01-05  Ian Lance Taylor  <iant@google.com>

        * c-common.c (decl_with_nonnull_addr_p): New function.
        (c_common_truthvalue_conversion): Call it.
        * c-typeck.c (build_binary_op): Likewise.
        * c-common.h (decl_with_nonnull_addr_p): Declare.

2007-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR c/30360
        * libgcc2.c (__divdc3): Compare c and d against 0.0 instead of
        denom against 0.0.

2007-01-05  Joel Brobecker  <brobecker@adacore.com>

        * doc/install.texi (Final install): Document the fact that
        the GNAT runtime should not be stripped.

2007-01-04  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (fold_marked_statements): Update operand caches
        and EH after folding

2007-01-04  Ian Lance Taylor  <iant@google.com>

        * c-common.c (check_function_nonnull): Whitespace fix.

2007-01-04  Jan Hubicka  <jh@suse.cz>

        * tree-optimize.c (execute_fixup_cfg): Correct previously mistakely
        comitted older version of patch.
        (pass_fixup_cfg): Add TODOs to verify flow and statements, dump
        function, celanup cfg and collect garbage.

2007-01-04  Mike Stump  <mrs@apple.com>

        * Makefile.in (mostlyclean): Don't remove libgcc anymore.
        (clean): Likewise.

2007-01-04  Eric Christopher  <echristo@apple.com>

        * libgcc2.c (__bswapsi2): Use SItype.
        (__bswapdi2): Use DItype.
        * libgcc2.h: Update for above.

2007-01-04  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.md (arm_mulsi3, thumb_mulsi3, mulsi3_compare0,
        mulsi_compare0_scratch, mulsi3addsi, mulsi3addsi_compare0,
        mulsi3addsi_compare0_scratch, mulsidi3adddi, mulsidi3,
        umulsidi3, umulsidi3adddi, smulsi3_highpart,
        umulsi3_highpart): Make conditional on !arm_arch6.
        (arm_mulsi3_v6, thumb_mulsi3_v6, mulsi3_compare0_v6,
        mulsi_compare0_scratch_v6, mulsi3addsi_v6, mulsi3addsi_compare0_v6,
        mulsi3addsi_compare0_scratch_v6, mulsidi3adddi_v6, mulsidi3_v6,
        umulsidi3_v6, umulsidi3adddi_v6, smulsi3_highpart_v6,
        umulsi3_highpart_v6): New insns.

2007-01-04  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_convert): When casting an expression to void,
        fold_ignored_result may discover a GIMPLE_MODIFY_STMT which doesn't
        have a type.  Instead of attempting to build a NOP_EXPR, return
        these "special" trees directly.

2007-01-04  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
        MULT inside MINUS as either argument.  Use rs6000_cost->dmul -
        rs6000_cost->fp not 0 as adjustment for outer NEG.

2007-01-04  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_release_function_body): New function.
        (cgraph_remove_node): Use it.
        * cgraph.h (cgraph_release_function_body): Declare.
        * cgraphunit.c (cgraph_expand_function): Use it.
        * ipa.c (cgraph_remove_unreahchable_nodes): Use it.
        * tree-ssa.c (delete_tree_ssa): Allow to be called before aliasing
        is initialized and while compilation of other function is running.
        * tree-optimize.c (execute_free_cfg_annotations): Move code to clear
        statement CFG annotations from here to ...
        * tree-cfg.c (delete_tree_cfg_annotations): ... here.

2007-01-04  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloop.h (enum li_flags): Make the constants powers of two.

2007-01-04  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (copy_bb): Insert new statements to statements_to_fold
        set.
        (fold_marked_statements): New function.
        (optimize_inline_calls, tree_function_versioning): Fold new statements.
        * tree-inline.h (copy_body_data): Add statements_to_fold.

2007-01-03  Daniel Jacobowitz  <dan@codesourcery.com>

        * config.gcc: Mention libgcc/config.host.
        * Makefile.in: Update comments mentioning libgcc.
        (LIBGCC, INSTALL_LIBGCC, GCC_PARTS, mklibgcc): Delete.
        (all.cross, start.encap, rest.encap, rest.cross): Update
        dependencies for libgcc move.
        (libgcc.mk, LIBGCC_DEPS, libgcov.a, libgcc.a, stmp-multilib)
        (clean-target, clean-target-libgcc): Delete.
        (srcdirify, GCC_EXTRA_PARTS): New macros.
        (libgcc-support, libgcc.mvars): New rules.
        (distclean): Remove mention of mklibgcc.
        (install): Don't reference INSTALL_LIBGCC.
        (install-common): Don't reference EXTRA_PARTS.
        (install-libgcc, install-multilib): Delete rules.
        * mklibgcc.in: Delete file.
        * doc/configfiles.texi: Don't mention mklibgcc.

        * config/i386/t-darwin (SHLIB_VERPFX): Delete (moved to libgcc).
        * config/i386/t-darwin64 (SHLIB_VERPFX): Likewise.
        * config/rs6000/t-darwin (SHLIB_VERPFX): Likewise.
        * config/rs6000/t-ppccomm (TARGET_LIBGCC2_CFLAGS, SHLIB_MAPFILES)
        (mklibgcc, ldblspecs): Likewise.

        * config/i386/t-nwld (libgcc.def, libc.def, libpcre.def)
        (posixpre.def): Use $(T).
        (SHLIB_EXT, SHLIB_NAME, SHLIB_SLIBDIR_QUAL, SHLIB_DEF, SHLIB_MAP)
        (SHLIB_SRC, SHLIB_INSTALL): Delete.
        (SHLIB_LINK): Make dummy.
        * config/t-slibgcc-darwin: Delete contents except for dummy SHLIB_LINK.

        * config/frv/t-linux (EXTRA_MULTILIB_PARTS): Clear.

        * config/alpha/t-crtfm: Use $(T) in rules for EXTRA_PARTS.
        * config/alpha/t-vms, config/alpha/t-vms64, config/fr30/t-fr30,
        config/i386/t-rtems-i386, config/ia64/t-ia64, config/rs6000/t-beos,
        config/rs6000/t-newas, config/sparc/t-elf: Likewise.

        * configure.ac (all_outputs): Remove mklibgcc.
        * configure: Regenerated.

2007-01-03  Josh Conner  <jconner@apple.com>

        PR middle-end/29683
        * calls.c (compute_argument_addresses): Set stack and stack_slot
        for partial args, too.
        (store_one_arg): Use locate.size.constant for the size when
        generating a save_area.

2007-01-03  Robert Kennedy <jimbob@google.com>

        * tree-cfg.c (tree_merge_blocks): Release SSA_NAME phi results
        whose definitions are deleted due to basic block merging.

2007-01-03  Paul Brook  <paul@codesourcery.com>

        PR target/16634
        * config/arm/arm.c (output_return_instruction): Pop PC in interrupt
        functions.
        (use_return_insn): Return 0 for Thumb interrupt functions.
        (print_multi_reg): Add rfe argument for IRQ returns.
        (arm_output_epilogue): Pop interrupt return address directly into PC.
        (arm_expand_prologue): Only adjust IRQ return address in Arm mode.

2007-01-03  Paul Brook  <paul@codesourcery.com>

        Merge from sourcerygxx-4_1.
        * config/arm/thumb2.md: New file.
        * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Return True for
        Thumb-2.
        * config/arm/coff.h (JUMP_TABLES_IN_TEXT_SECTION): Ditto.
        * config/arm/aout.h (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
        (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump tables.
        * config/arm/aof.h (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump
        tables.
        (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
        * config/arm/ieee754-df.S: Use macros for Thumb-2/Unified asm
        comptibility.
        * config/arm/ieee754-sf.S: Ditto.
        * config/arm/arm.c (thumb_base_register_rtx_p): Rename...
        (thumb1_base_register_rtx_p): ... to this.
        (thumb_index_register_rtx_p): Rename...
        (thumb1_index_register_rtx_p): ... to this.
        (thumb_output_function_prologue): Rename...
        (thumb1_output_function_prologue): ... to this.
        (thumb_legitimate_address_p): Rename...
        (thumb1_legitimate_address_p): ... to this.
        (thumb_rtx_costs): Rename...
        (thumb1_rtx_costs): ... to this.
        (thumb_compute_save_reg_mask): Rename...
        (thumb1_compute_save_reg_mask): ... to this.
        (thumb_final_prescan_insn): Rename...
        (thumb1_final_prescan_insn): ... to this.
        (thumb_expand_epilogue): Rename...
        (thumb1_expand_epilogue): ... to this.
        (arm_unwind_emit_stm): Rename...
        (arm_unwind_emit_sequence): ... to this.
        (thumb2_legitimate_index_p, thumb2_legitimate_address_p,
        thumb1_compute_save_reg_mask, arm_dwarf_handle_frame_unspec,
        thumb2_index_mul_operand, output_move_vfp, arm_shift_nmem,
        arm_save_coproc_regs, thumb_set_frame_pointer, arm_print_condition,
        thumb2_final_prescan_insn, thumb2_asm_output_opcode, arm_output_shift,
        thumb2_output_casesi): New functions.
        (TARGET_DWARF_HANDLE_FRAME_UNSPEC): Define.
        (FL_THUMB2, FL_NOTM, FL_DIV, FL_FOR_ARCH6T2, FL_FOR_ARCH7,
        FL_FOR_ARCH7A, FL_FOR_ARCH7R, FL_FOR_ARCH7M, ARM_LSL_NAME,
        THUMB2_WORK_REGS): Define.
        (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv, arm_condexec_count,
        arm_condexec_mask, arm_condexec_masklen)): New variables.
        (all_architectures): Add armv6t2, armv7, armv7a, armv7r and armv7m.
        (arm_override_options): Check new CPU capabilities.
        Set new architecture flag variables.
        (arm_isr_value): Handle v7m interrupt functions.
        (user_return_insn): Return 0 for v7m interrupt functions.  Handle
        Thumb-2.
        (const_ok_for_arm): Handle Thumb-2 constants.
        (arm_gen_constant): Ditto.  Use movw when available.
        (arm_function_ok_for_sibcall): Return false for v7m interrupt
        functions.
        (legitimize_pic_address, arm_call_tls_get_addr): Handle Thumb-2.
        (thumb_find_work_register, arm_load_pic_register,
        legitimize_tls_address, arm_address_cost, load_multiple_sequence,
        emit_ldm_seq, emit_stm_seq, arm_select_cc_mode, get_jump_table_size,
        print_multi_reg, output_mov_long_double_fpa_from_arm,
        output_mov_long_double_arm_from_fpa, output_mov_double_fpa_from_arm,
        output_mov_double_fpa_from_arm, output_move_double,
        arm_compute_save_reg_mask, arm_compute_save_reg0_reg12_mask,
        output_return_instruction, arm_output_function_prologue,
        arm_output_epilogue, arm_get_frame_offsets, arm_regno_class,
        arm_output_mi_thunk, thumb_set_return_address): Ditto.
        (arm_expand_prologue): Handle Thumb-2.  Use arm_save_coproc_regs.
        (arm_coproc_mem_operand): Allow POST_INC/PRE_DEC.
        (arithmetic_instr, shift_op): Use arm_shift_nmem.
        (arm_print_operand): Use arm_print_condition.  Handle '(', ')', '.',
        '!' and 'L'.
        (arm_final_prescan_insn): Use extract_constrain_insn_cached.
        (thumb_expand_prologue): Use thumb_set_frame_pointer.
        (arm_file_start): Output directive for unified syntax.
        (arm_unwind_emit_set): Handle stack alignment instruction.
        * config/arm/lib1funcs.asm: Remove default for __ARM_ARCH__.
        Add v6t2, v7, v7a, v7r and v7m.
        (RETLDM): Add Thumb-2 code.
        (do_it, shift1, do_push, do_pop, COND, THUMB_SYNTAX): New macros.
        * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define __thumb2__.
        (TARGET_THUMB1, TARGET_32BIT, TARGET_THUMB2, TARGET_DSP_MULTIPLY,
        TARGET_INT_SIMD, TARGET_UNIFIED_ASM, ARM_FT_STACKALIGN, IS_STACKALIGN,
        THUMB2_TRAMPOLINE_TEMPLATE, TRAMPOLINE_ADJUST_ADDRESS,
        ASM_OUTPUT_OPCODE, THUMB2_GO_IF_LEGITIMATE_ADDRESS,
        THUMB2_LEGITIMIZE_ADDRESS, CASE_VECTOR_PC_RELATIVE,
        CASE_VECTOR_SHORTEN_MODE, ADDR_VEC_ALIGN, ASM_OUTPUT_CASE_END,
        ADJUST_INSN_LENGTH): Define.
        (TARGET_REALLY_IWMMXT, TARGET_IWMMXT_ABI, CONDITIONAL_REGISTER_USAGE,
        STATIC_CHAIN_REGNUM, HARD_REGNO_NREGS, INDEX_REG_CLASS,
        BASE_REG_CLASS, MODE_BASE_REG_CLASS, SMALL_REGISTER_CLASSES,
        PREFERRED_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS,
        SECONDARY_INPUT_RELOAD_CLASS, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
        TRAMPOLINE_SIZE, INITIALIZE_TRAMPOLINE, HAVE_PRE_INCREMENT,
        HAVE_POST_DECREMENT, HAVE_PRE_DECREMENT, HAVE_PRE_MODIFY_DISP,
        HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_REG, HAVE_POST_MODIFY_REG,
        REGNO_MODE_OK_FOR_BASE_P, LEGITIMATE_CONSTANT_P,
        REG_MODE_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P, GO_IF_LEGITIMATE_ADDRESS,
        LEGITIMIZE_ADDRESS, THUMB2_LEGITIMIZE_ADDRESS,
        GO_IF_MODE_DEPENDENT_ADDRESS, MEMORY_MOVE_COST, BRANCH_COST,
        ASM_APP_OFF, ASM_OUTPUT_CASE_LABEL, ARM_DECLARE_FUNCTION_NAME,
        FINAL_PRESCAN_INSN, PRINT_OPERAND_PUNCT_VALID_P,
        PRINT_OPERAND_ADDRESS): Adjust for Thumb-2.
        (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv): New declarations.
        * config/arm/arm-cores.def: Add arm1156t2-s, cortex-a8, cortex-r4 and
        cortex-m3.
        * config/arm/arm-tune.md: Regenerate.
        * config/arm/arm-protos.h: Update prototypes.
        * config/arm/vfp.md: Enable patterns for Thumb-2.
        (arm_movsi_vfp): Add movw alternative.  Use output_move_vfp.
        (arm_movdi_vfp, movsf_vfp, movdf_vfp): Use output_move_vfp.
        (thumb2_movsi_vfp, thumb2_movdi_vfp, thumb2_movsf_vfp,
        thumb2_movdf_vfp, thumb2_movsfcc_vfp, thumb2_movdfcc_vfp): New.
        * config/arm/libunwind.S: Add Thumb-2 code.
        * config/arm/constraints.md: Update include Thumb-2.
        * config/arm/ieee754-sf.S: Add Thumb-2/Unified asm support.
        * config/arm/ieee754-df.S: Ditto.
        * config/arm/bpabi.S: Ditto.
        * config/arm/t-arm (MD_INCLUDES): Add thumb2.md.
        * config/arm/predicates.md (low_register_operand,
        low_reg_or_int_operand, thumb_16bit_operator): New.
        (thumb_cmp_operand, thumb_cmpneg_operand): Rename...
        (thumb1_cmp_operand, thumb1_cmpneg_operand): ... to this.
        * config/arm/t-arm-elf: Add armv7 multilib.
        * config/arm/arm.md: Update patterns for Thumb-2 and Unified asm.
        Include thumb2.md.
        (UNSPEC_STACK_ALIGN, ce_count): New.
        (arm_incscc, arm_decscc, arm_umaxsi3, arm_uminsi3,
        arm_zero_extendsidi2, arm_zero_extendqidi2): New
        insns/expanders.
        * config/arm/fpa.md: Update patterns for Thumb-2 and Unified asm.
        (thumb2_movsf_fpa, thumb2_movdf_fpa, thumb2_movxf_fpa,
        thumb2_movsfcc_fpa, thumb2_movdfcc_fpa): New insns.
        * config/arm/cirrus.md: Update patterns for Thumb-2 and Unified asm.
        (cirrus_thumb2_movdi, cirrus_thumb2_movsi_insn,
        thumb2_cirrus_movsf_hard_insn, thumb2_cirrus_movdf_hard_insn): New
        insns.
        * doc/extend.texi: Document ARMv7-M interrupt functions.
        * doc/invoke.texi: Document Thumb-2 new cores+architectures.

2007-01-03  Jakub Jelinek  <jakub@redhat.com>

        * unwind-dw2.c (SIGNAL_FRAME_BIT, EXTENDED_CONTEXT_BIT): Define.
        (struct _Unwind_Context): Rename args_size to flags, remove
        signal_frame field, add a new args_size field and version field.
        (_Unwind_IsSignalFrame, _Unwind_SetSignalFrame,
        _Unwind_IsExtendedContext): New inline functions.
        (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
        Assume by_value array is only present if _Unwind_IsExtendedContext.
        (_Unwind_GetIPInfo, execute_cfa_program, uw_frame_state_for): Use
        _Unwind_IsSignalFrame.
        (__frame_state_for): Initialize context.flags to EXTENDED_CONTEXT_BIT.
        (uw_update_context_1): Use _Unwind_SetSignalFrame.
        (uw_init_context_1): Initialize context->flags to
        EXTENDED_CONTEXT_BIT.
        * config/rs6000/linux-unwind.h (frob_update_context): Use
        _Unwind_SetSignalFrame.

2007-01-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30353
        * gimplify.c (gimplify_modify_expr_complex_part): Move below
        tree_to_gimple_tuple.  Call tree_to_gimple_tuple when we need
        the value.

2007-01-03  Kazu Hirata  <kazu@codesourcery.com>

        * config/i386/i386.h (NON_STACK_REG_P, REGNO_OK_FOR_SIREG_P,
        REGNO_OK_FOR_DIREG_P, REWRITE_ADDRESS, ASM_OPERAND_LETTER,
        RET, AT_SP): Remove.
        * config/i386/i386.md (*sse_prologue_save_insn): Use return
        instead of RET.

        * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfgrtl.c (rtl_create_basic_block): Likewise.
        * function.c (temp_slots_at_level): Likewise.
        * reg-stack.c (stack_regs_mentioned): Likewise.
        * regclass.c (allocate_reg_info): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
        set_bb_for_stmt, move_block_to_fn): Likewise.
        * tree-complex.c (tree_lower_complex): Likewise.
        * vec.h (VEC_safe_grow_cleared): New.

        * cgraphunit.c, tree-ssa-alias.c: Fix comment typos.

2007-01-03  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
        * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
        to loop_version.
        * cfgloopmanip.c (scale_loop_frequencies): Export.
        (loopify): Scale the frequencies by prescribed coefficients.
        (set_zero_probability): New function.
        (duplicate_loop_to_header_edge): Improve updating of frequencies.
        (lv_adjust_loop_entry_edge, loop_version): Set probabilities
        and frequencies according to arguments.
        * tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
        correctly.
        * cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
        * modulo-sched.c (sms_schedule): Set probabilities for entering
        versioned loop correctly.
        * tree-vect-transform.c (vect_transform_loop): Ditto.
        * cfgloop.h (loopify, loop_version): Declaration changed.
        (scale_loop_frequencies): Declared.

2007-01-02  Jan Hubicka  <jh@suse.cz>

        * cgraph.c: Include tree-flow.h
        (cgraph_add_new-function): Handle IPA_SSA mode; execute
        early_local_passes.
        * cgraph.h (enum cgraph_state): Add CGRAPH_STATE_IPA_SSA.
        * tree-pass.h (pass_all_early_optimizations): Declare.
        * cgraphunit.c (cgraph_process_new_functions): Add IPA_SSA; execute
        early_local_passes.
        (cgraph_analyze_function): Do early_local_passes.
        * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
        Do not add referenced vars.
        * tree-optimize.c (gate_all_optimizations): Do not execute when not in
        SSA form.
        (gate_all_early_local_passes): New gate.
        (pass_early_local_passes): Use new gate.
        (execute_early_local_optimizations): New functions.
        (gate_all_early_optimizations): New gate.
        (pass_all_early_optimizations): New pass.
        (execute_free_datastructures): Free SSA only when initialized.
        (gate_init_datastructures): Init only when optimizing.
        (tree_lowering_passes): Do early local passes when called late.
        * tree-profile.c (do_tree_profiling): Don't profile functions added
        late.
        (do_early_tree_profiling, pass_early_tree_profile): Kill.
        * tree-cfg.c (update_modified_stmts): Do not update when operands are
        not active.
        * passes.c (init_optimizations_passes): Reorder so we go into SSA
        during early_local_passes.
        * Makefile.in (cgraph.o): Add dependency on tree-flow.h.


2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Update copyright year.

2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Export GCC_EXEC_PREFIX before calling $(RUNTEST)
        in $(lang_checks) and check-consistency targets.

2007-01-02  Jan Hubicka  <jh@suse.cz>

        * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
        Do not add referenced vars.
        * tree-cfg.c (update_modified_stmts): Do not update when SSA operands
        are not active.
        * passes.c (init_optimization_passes): Put mudflap_2 after
        free_datastructures.

2007-01-02  Jan Hubicka  <jh@suse.cz>

        * tree-optimize (execute_fixup_cfg): Set after_inlining flag.
        Set NOTHROW flag on call statements proved to be nothrow.
        Update statement of local calls so new pure/const functions are
        updated. Update_ssa when in ssa form. Mark PHI nodes of nonlocal
        goto receivers.
        (tree_rest_of_compilation): Register hooks and initialize bitmap
        early. Do not set after_inlining flag.

2007-01-02  Steve Ellcey  <sje@cup.hp.com>

        * sbitmap.c (HOST_BITS_PER_LONG_LONG):  Change to
        HOST_BITS_PER_LONGLONG

2007-01-02  Manuel Lopez-Ibanez <manu@gcc.gnu.org>

        PR c/19977
        * c-typeck.c (store_init_value): Don't emit pedantic overflow
        warning for non-static initializers.

2007-01-02  Steven Bosscher  <steven@gcc.gnu.org>

        * config/alpha/alpha.md, arm/arm.c, darwin.c, frv/frv.md,
        m32r/m32r.c, m32r/m32r.c, mn10300/mn10300.md, pa/pa.c,
        rs6000/rs6000.c, s390/s390.md, sh/sh.md, sparc/sparc.c:
        Always use set_unique_reg_note to add REG_EQUAL notes.

2007-01-02  Kazu Hirata  <kazu@codesourcery.com>

        Revert:
        2007-01-02  Kazu Hirata  <kazu@codesourcery.com>

        * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfgrtl.c (rtl_create_basic_block): Likewise.
        * function.c (temp_slots_at_level): Likewise.
        * reg-stack.c (stack_regs_mentioned): Likewise.
        * regclass.c (allocate_reg_info): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
        set_bb_for_stmt, move_block_to_fn): Likewise.
        * tree-complex.c (tree_lower_complex): Likewise.
        * vec.h (VEC_safe_grow_cleared): New.

2007-01-02  Ian Lance Taylor  <iant@google.com>

        * c-common.c (c_common_truthvalue_conversion): When warning about
        using an assignment as a truth value, set TREE_NO_WARNING.

2007-01-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/7651
        * c.opt (Wold-style-declaration): New.
        * doc/invoke.texi (C-only Warning Options): New.
        (Wold-style-declaration): Document it.
        (Wextra): Enabled by -Wextra.
        * c-opts.c (c_common_post_options): Enabled by -Wextra.
        * c-decl.c (declspecs_add_scspec): Replace -Wextra with
        -Wold-style-declaration.

2007-01-02  Kazu Hirata  <kazu@codesourcery.com>

        * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfgrtl.c (rtl_create_basic_block): Likewise.
        * function.c (temp_slots_at_level): Likewise.
        * reg-stack.c (stack_regs_mentioned): Likewise.
        * regclass.c (allocate_reg_info): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
        set_bb_for_stmt, move_block_to_fn): Likewise.
        * tree-complex.c (tree_lower_complex): Likewise.
        * vec.h (VEC_safe_grow_cleared): New.

2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>

        * c-common.c (c_common_nodes_and_builtins): Since variants of
        void_type_node get built before it is given a name, we need to
        give those variants the name, too.
        (complete_array_type): We need to work with the canonical main
        type of the array, from which we will build the qualified version.
        * params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
        * print-tree.c (print_node): Display canonical type information
        for each type.
        * stor-layout.c (layout_type): When we don't know the
        alignment of a type for which we're building an array, we end up
        guessing wrong, so make the type require structural equality.
        * tree.c (make_node_stat): When we build a new type, it is its
        own canonical type.
        (build_type_attribute_qual_variant): When building an attribute
        variant, its canonical type is the non-attribute variant. However,
        if the attributes are target-dependent and they differ, we need to
        use structural equality checks for this type.
        (build_qualified_type): A qualified type is not equivalent to its
        unqualified variant; set the canonical type appropriately.
        (build_distinct_type_copy): When building a distinct type from
        another type, the new type is its own canonical type.
        (build_variant_type_copy): When building a new type variant, we
        assume that it is equivalent to the original type.
        (build_pointer_type_for_mode): When building a pointer type, also
        build a canonical type pointer.
        (build_reference_type_for_mode): When building a reference type,
        also build a canonical type reference.
        (build_index_type): When we can't hash an index type (e.g.,
        because its maximum value is negative), the index type requires
        structural equality tests.
        (build_array_type): Build the canonical form of an array type.
        (build_function_type): Function types require structural equality,
        because they contain default arguments, attributes, etc.
        (build_method_type_directly): Ditto for method types.
        (build_offset_type): Build the canonical offset type.
        (build_complex_type): Build the canonical vector type.
        (make_vector_type): Build the canonical vector type.
        * tree.h (TYPE_CANONICAL): New.
        (TYPE_STRUCTURAL_EQUALITY_P): New.
        (SET_TYPE_STRUCTURAL_EQUALITY): New.
        (struct tree_type): Added "canonical" field.
        * params.h (VERIFY_CANONICAL_TYPES): New.
        * doc/c-tree.texi (TYPE_CANONICAL): Document.
        (TYPE_STRUCTURAL_EQUALITY_P): Document.
        (SET_TYPE_STRUCTURAL_EQUALITY): Document.
        * doc/invoke.texi (verify-canonical-types): Document --param
        parameter for verifying canonical types.

2007-01-02  Joseph Myers  <joseph@codesourcery.com>

        * config.gcc (powerpc-*-eabispe*, powerpc-*-eabisimaltivec*,
        powerpc-*-eabisim*, powerpc-*-eabialtivec*, powerpc-*-eabi*,
        powerpc-*-rtems*, powerpc-wrs-vxworks, powerpc-wrs-vxworksae,
        powerpcle-*-eabisim*, powerpcle-*-eabi*): Add rs6000/e500.h to
        tm_file.
        * config/rs6000/e500.h: New.
        * config/rs6000/eabi.h (TARGET_SPE_ABI, TARGET_SPE, TARGET_E500,
        TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE, TARGET_E500_DOUBLE):
        Remove.
        * config/rs6000/linuxspe.h (TARGET_SPE_ABI, TARGET_SPE,
        TARGET_E500, TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE,
        TARGET_E500_DOUBLE): Remove.
        * config/rs6000/vxworks.h (TARGET_SPE_ABI, TARGET_SPE,
        TARGET_E500, TARGET_ISEL, TARGET_FPRS): Remove.
        * config/rs6000/rs6000.h (CHECK_E500_OPTIONS): Define.
        * config/rs6000/rs6000.c (rs6000_override_options): Use
        CHECK_E500_OPTIONS.

2007-01-02  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000.c (print_operand): Check (TARGET_SPE ||
        TARGET_E500_DOUBLE), not TARGET_E500, for %y.
        (rs6000_generate_compare, rs6000_emit_sCOND, output_cbranch,
        rs6000_emit_cmove): Don't check TARGET_E500.
        * config/rs6000/rs6000.md (bunordered, bordered, sunordered,
        sordered): Don't check TARGET_E500.

2007-01-01  Eric Christopher  <echristo@apple.com>

        * config/mips/mips.c (mips_regno_mode_ok_for_base_p): Use
        HARD_REGISTER_NUM_P.

2007-01-01  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_binary) <EQ_EXPR>: Fold "(X^C1) eq/ne C2" into
        "X eq/ne (C1^C2)".  Fold "(X^Z) eq/ne (Y^Z)" as "X eq/ne Y" when Z
        has no side-effects.  Fold "(X^C1) eq/ne (Y^C2)" as "(X^(C1^C2))
        eq/ne Y".

2007-01-01  Mike Stump  <mrs@apple.com>

        * configure.ac: Remove support for building with Apple's gcc-3.1.

2007-01-02  Joseph Myers  <joseph@codesourcery.com>

        PR middle-end/30311
        * caller-save.c (add_stored_regs): Only handle SUBREGs if inner
        REG is a hard register.  Do not modify REG before calling
        subreg_nregs.
        * rtlanal.c (subreg_get_info): Don't assert size of XMODE is a
        multiple of the size of YMODE for certain lowpart cases.

2007-01-01  Andrew Pinski  <pinskia@gmail.com>

        PR middle-end/30253
        * gimplify (voidify_wrapper_expr): Update for
        GIMPLE_MODIFY_STMT.

2007-01-01  Andreas Schwab  <schwab@suse.de>

        PR target/29166
        * config/ia64/ia64.c (ia64_compute_frame_size): Account space for
        save of BR0 in extra_spill_size instead of spill_size.
        (ia64_expand_prologue): Save BR0 outside of the gr/br/fr spill
        area.
        (ia64_expand_epilogue): Restore BR0 from its new location.

2007-01-01  Andrew Pinski  <pinskia@gmail.com>

        * gimplify.c (gimplify_init_constructor <case VECTOR_TYPE>):
        Use a temporary variable if the left hand side is not a gimple
        register.

2007-01-01  Andrew Pinski  <pinskia@gmail.com>

        * gimplify.c (gimplify_return_expr): Make the temporary variable
        for the return expression, a gimple register variable.

2007-01-01  Jan Hubicka  <jh@suse.cz>

        * emit-rtl.c (emit_copy_of_insn_after): Do not call copy_insn_1 for
        INSN_LIST.

2007-01-01  Mike Stump  <mrs@apple.com>

        * configure.ac (HAVE_GAS_LITERAL16): Add autoconf check for
        .literal16.
        * config/darwin.c (machopic_select_rtx_section): Use
        HAVE_GAS_LITERAL16.
        (darwin_mergeable_constant_section): Likewise.
        * configure: Regenerate.
        * config.in: Regenerate.

2007-01-01  Jan Hubicka  <jh@suse.cz>
            Andrew Pinski  <pinskia@gmail.com>

        * cgraphunit.c (cgraph_optimize): Call cgraph_add_new_functions
        before starting IPA passes.