[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog

2007-12-13  Richard Earnshaw  <rearnsha@arm.com>

        PR target/30192
        * config/arm/ieee754-df.S (floatundidf): Fix for wrong sp value on
        exit when using hard FPA.
        * config/arm/ieee754-df.S (floatdidf): Likewise.

2007-12-12  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/30589
        * doc/install.texi: Document that for MinGW only runtime 3.12 and
        later is supported.

2007-12-12  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (is_mem_ref): Ignore STACK_TIE.

2007-12-12  Aldy Hernandez  <aldyh@redhat.com>

        PR tree-optimization/32901
        * gimplify.c (gimplify_modify_expr_rhs): Handle the case when we
        are assigning from a constant constructor.
        Fix wrapping in function comment.

2007-12-12  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (s390_O_constraint_str): Limit the range
        for 'On' to -4G+1..-1.
        * config/s390/constraints.md: Adjust comment accordingly.

2007-12-11  Nathan Sidwell  <nathan@codesourcery.com>

        * config/rs6000/rs6000.c (rs6000_emit_prologue): Use frame_reg_rtx
        for SPE saves.

2007-12-11  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/cygming.h (DWARF2_UNWIND_INFO): Handle 64-bit
        target same as 32-bit.

2007-12-10  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/34371
        * tree-vectorizer.h (struct _loop_vec_info): Add num_iters_unchanged
        field.
        (LOOP_VINFO_NITERS_UNCHANGED): Define to num_iters_unchanged field.
        * tree-vectorizer.c (set_prologue_iterations,
        slpeel_tree_peel_loop_to_edge): Call unshare_expr on
        LOOP_VINFO_NITERS_UNCHANGED before using it.

2007-12-10  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR target/34403
        * config/i386/i386.c (ix86_expand_movmem): Punt if the count is large.
        (ix86_expand_setmem): Likewise.

2007-12-10  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/34302
        * auto-inc-dec.c (attempt_change): Change place where move is
        inserted.

2007-12-10  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (gen_array_type_die, gen_descr_array_type_die): For
        Fortran multi-dimensional arrays use DW_AT_ordering
        DW_ORD_col_major.

2007-12-10  Paolo Bonzini  <bonzini@gnu.org>

        PR target/32086
        * config/i386/i386.c (override_options): Enable -fvect-cost-model.

2007-12-10 Uros Bizjak <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_function_regparm): Do not check global_regs
        array, registers that are members of global_regs are also members of
        fixed_regs array.  Use REGPARM_MAX to check that no regparm hard
        register is taken by a fixed register variable.  Check up to and
        including DI_REG when adjusting regparm value due to fixed regs usage.
        (rep_prefix_usable): Check fixed_regs array, not global_regs array for
        available hard registers.
        (ix86_expand_strlen): Ditto.
        * config/i386/i386.md (strmov): Ditto.
        (cmpstrnsi): Ditto.

2007-12-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        * genopinit.c: Include tm_p.h in generated file.

        * config/arm/neon.md (vec_set<mode>_internal): Use INTVAL
        to extract the integer from operands[2].
        (vec_setv2di_internal): Likewise.

        * config/arm/arm.c (arm_size_return_regs): Make return type
        unsigned.
        (arm_init_neon_builtins): Move code after declarations.

2007-12-10  Hans-Peter Nilsson  <hp@axis.com>

        * reload.c (find_reloads_address_1): To properly mark as an
        autoincdec, pass X for non-NULL OUT in call to push_reload for
        autoincdec which can't be trivially used as an address.

2007-12-10  Pranav Bhandarkar  <pranav.bhandarkar@celunite.com>
            Hans-Peter Nilsson  <hp@axis.com>

        * caller-save.c (insert_one_insn): If inserting before a call_insn
        then the registers containing the arguments of the call are
        live_throughout in the new insn.

2007-12-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle-end/32889
        PR target/34091
        * pa.md: Consolidate HImode and QImode move patterns into one pattern
        each, eliminating floating-point alternatives.
        * pa-protos.h (pa_cannot_change_mode_class, pa_modes_tieable_p):
        Declare functions.
        * pa-64.h (SECONDARY_MEMORY_NEEDED): Define here.
        * pa.c (pa_secondary_reload): Use an intermediate general register
        for copies to/from floating-point register classes.  Simplify code
        SHIFT_REGS class.  Provide additional comments.
        (pa_cannot_change_mode_class, pa_modes_tieable_p): New functions.
        * pa.h (MODES_TIEABLE_P): Use pa_modes_tieable_p.
        (SECONDARY_MEMORY_NEEDED): Delete define.
        (INT14_OK_STRICT): Define.
        (MODE_OK_FOR_SCALED_INDEXING_P): Allow SFmode and DFmode when using
        soft float.
        (MODE_OK_FOR_UNSCALED_INDEXING_P): Likewise.
        (GO_IF_LEGITIMATE_ADDRESS): Use INT14_OK_STRICT in REG+D case for
        SFmode and DFmode.
        (LEGITIMIZE_RELOAD_ADDRESS): Use INT14_OK_STRICT in mask selection.
        Align DImode offsets when generating 64-bit code.
        * pa32-regs.h (VALID_FP_MODE_P): Remove QImode and HImode.
        (CANNOT_CHANGE_MODE_CLASS): Define.
        * pa64-regs.h (VALID_FP_MODE_P): Remove QImode and HImode.
        (CANNOT_CHANGE_MODE_CLASS): Define using pa_cannot_change_mode_class.

2007-12-09  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/22244
        * langhooks-def.h (LANG_HOOKS_GET_ARRAY_DESCR_INFO): Define.
        (LANG_HOOKS_FOR_TYPES_INITIALIZER): Add it.
        * langhooks.h (struct array_descr_info): Forward declaration.
        (struct lang_hooks_for_types): Add get_array_descr_info field.
        * dwarf2.h (DW_AT_bit_stride, DW_AT_byte_stride): New.
        (DW_AT_stride_size, DW_AT_stride): Keep around for Dwarf2
        compatibility.
        * dwarf2out.h (struct array_descr_info): New type.
        * dwarf2out.c (dwarf_attr_name): Rename DW_AT_stride to
        DW_AT_byte_stride and DW_AT_stride_size to DW_AT_bit_size.
        (descr_info_loc, add_descr_info_field, gen_descr_array_type_die):
        New functions.
        (gen_type_die_with_usage): Call lang_hooks.types.get_array_descr_info
        and gen_descr_array_type_die.

2007-12-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34391
        * tree-vect-transform.c (vect_setup_realignment): Mark new
        symbols for renaming.

2007-12-07  Bob Wilson  <bob.wilson@acm.org>
        
        * config/xtensa/xtensa.h (ASM_PREFERRED_EH_DATA_FORMAT): Define.
        (ASM_OUTPUT_DWARF_PCREL): Define.
        
2007-12-07  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34382
        * opts.c (common_handle_option): Handle OPT_fforce_addr.

2007-12-07  Aldy Hernandez  <aldyh@redhat.com>

        * m32c.h (LEGITIMIZE_ADDRESS): Use WIN instead of win.
        (LEGITIMIZE_RELOAD_ADDRESS): Same.

2007-12-07  Samuel Tardieu  <sam@rfc1149.net>

        PR ada/29157
        * doc/install.texi: Explain how to check for a clean environment when
        building GNAT.

2007-12-07  Richard Guenther  <rguenther@suse.de>

        * tree-profile.c (gcov_type_tmp_var): New global variable.
        (tree_gen_edge_profiler): Use a single shared variable decl per
        function for edge counter incrementing.
        (tree_profiling): Re-set the shared variable.

2007-12-06  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (xtensa_va_start): Add prototype.

2007-12-06  Tom Tromey  <tromey@redhat.com>

        PR c/29172:
        * c-opts.c (c_common_parse_file): Call cpp_clear_file_cache.

2007-12-06  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_function_ok_for_sibcall): Check
        targetm.binds_local_p as well as DECL_EXTERNAL.

2007-12-06  Harsha Jagasia <harsha.jagasia@amd.com>

        * tree-vectorizer.c (slpeel_add_loop_guard): Gimplify the condition.
        (set_prologue_iterations): New. Set the prologue iterations to total
        number of scalar iterations if the cost model check indicates that
        scalar code should be generated.
        (slpeel_tree_peel_loop_to_edge): Add a new parameter and code for 
        generating the cost condition for epilog. Call
        set_prologue_iterations to generate cost condition for prolog.
        (new_loop_vec_info): Initialize LOOP_VINFO_NITERS_UNCHANGED.
        * tree-vectorizer.h (LOOP_VINFO_NITERS_UNCHANGED): New.
        (slpeel_tree_peel_loop_to_edge): Update declaration.
        (set_prologue_iterations): New declaration.
        * tree-vect-analyze.c (vect_analyze_loop_form): Update 
        LOOP_VINFO_NITERS_UNCHANGED.
        * tree-vect-transform.c
        (vect_estimate_min_profitable_iters): Add new parameter and
        code to  check if run time cost model test is needed.
        Remove code that adds builtin vectorization cost to scalar
        outside cost for the run time cost model test. If run time
        cost model test is needed add the appropriate guard cost to
        the scalar outside cost. The guard cost depends on whether
        the guard is generated at versioning or at prolog generation
        or at epilog generation. Change cost model equation to include
        scalar outside cost.
        (conservative_cost_threshold): New. Return the less conservative
        profitability threshold between the cost model threshold and the
        user defined vectorization threshold.
        (vect_do_peeling_for_loop_bound): Call conservative_cost_threshold.
        (vect_do_peeling_for_alignment): Same.
        (vect_loop_versioning): Same.
        (vect_create_cond_for_align_checks): ANDs the cost model condition
        with the alignment condition.
        (vect_transform_loop): Call loop versioning only when there is a
        misalignment or an aliasing problem.

2007-12-06  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/20983
        * tree-ssa-ccp.c (optimize_stdarg_builtin): New function.
        (execute_fold_all_builtins): Call it for BUILT_IN_VA_START,
        BUILT_IN_VA_COPY and BUILT_IN_VA_END.

        * target.h (struct ggc_target): Add expand_builtin_va_start hook.
        * target-def.h (TARGET_EXPAND_BUILTIN_VA_START): Define.
        (TARGET_INITIALIZER): Add it.
        * builtins.c (expand_builtin_va_start): Use
        targetm.expand_builtin_va_start hook instead of
        EXPAND_BUILTIN_VA_START macro.
        * alpha/alpha.c (alpha_va_start): Made static.
        (override_options): Clear targetm.expand_builtin_va_start if
        TARGET_UNICOSMK.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.
        * alpha/unicosmk.h (EXPAND_BUILTIN_VA_START): Remove.
        * alpha/alpha.h (EXPAND_BUILTIN_VA_START): Remove.
        * alpha/alpha-protos.h (alpha_va_start): Remove prototype.
        * xtensa/xtensa.h (EXPAND_BUILTIN_VA_START): Remove.
        * xtensa/xtensa.c (TARGET_EXPAND_BUILTIN_VA_START): Define.
        (xtensa_va_start): Made static.
        * xtensa/xtensa-protos.h (xtensa_va_start): Remove prototype.
        * pa/pa-protos.h (hppa_va_start): Remove prototype.
        * pa/pa.h (EXPAND_BUILTIN_VA_START): Remove.
        * pa/pa.c (hppa_va_start): Made static, add prototype.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.
        * frv/frv.c (frv_expand_builtin_va_start): Made static, add prototype.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.
        * frv/frv-protos.h (frv_expand_builtin_va_start): Remove prototype.
        * frv/frv.h (EXPAND_BUILTIN_VA_START): Remove.
        * i386/i386.c (override_options): Clear
        targetm.expand_builtin_va_start if -m32 or 64-bit MS ABI.
        (ix86_va_start): Made static.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.
        * i386/i386.h (EXPAND_BUILTIN_VA_START): Remove.
        * i386/i386-protos.h (ix86_va_start, ix86_va_arg): Remove prototypes.
        * iq2000/iq2000-protos.h (iq2000_va_start): Remove prototype.
        * iq2000/iq2000.h (EXPAND_BUILTIN_VA_START): Remove.
        * iq2000/iq2000.c (iq2000_va_start): Made static, add prototype.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.
        * rs6000/rs6000-protos.h (rs6000_va_start): Remove prototype.
        * rs6000/rs6000.c (rs6000_va_start): Made static, add prototype.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.
        (rs6000_override_options): Clear targetm.expand_builtin_va_start if
        DEFAULT_ABI != ABI_V4.
        * rs6000/rs6000.h (EXPAND_BUILTIN_VA_START): Remove.
        * spu/spu.c (spu_va_start): Made static, add prototype.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.
        * spu/spu.h (EXPAND_BUILTIN_VA_START): Remove.
        * spu/spu-protos.h spu_va_start): Remove prototype.
        * stormy16/stormy16.h (EXPAND_BUILTIN_VA_START): Remove.
        * stormy16/stormy16-protos.h (xstormy16_expand_builtin_va_start):
        Remove prototype.
        * stormy16/stormy16.c (xstormy16_expand_builtin_va_start): Made
        static.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.
        * s390/s390-protos.h (s390_va_start): Remove prototype.
        * s390/s390.c (s390_va_start): Made static.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.
        * s390/s390.h (EXPAND_BUILTIN_VA_START): Remove.
        * mn10300/mn10300.h (EXPAND_BUILTIN_VA_START): Remove.
        * mn10300/mn10300-protos.h (mn10300_va_start): Remove prototype.
        * mn10300/mn10300.c (mn10300_va_start): Made static, add prototype.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.
        * arc/arc.c (arc_va_start): Made static, add prototype.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.
        * arc/arc.h (EXPAND_BUILTIN_VA_START): Remove.
        * arc/arc-protos.h (arc_va_start): Remove prototype.
        * mt/mt-protos.h (mt_va_start): Remove prototype.
        * sparc/sparc.c (sparc_va_start): Made static, add prototype.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.
        * sparc/sparc-protos.h (sparc_va_start): Remove prototype.
        * sparc/sparc.h (EXPAND_BUILTIN_VA_START): Remove.
        * sh/sh.c (sh_va_start): Made static, add prototype.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.
        * sh/sh-protos.h (sh_va_start): Remove prototype.
        * sh/sh.h (EXPAND_BUILTIN_VA_START): Remove.
        * mips/mips-protos.h (mips_va_start): Remove prototype.
        * mips/mips.h (EXPAND_BUILTIN_VA_START): Remove.
        * mips/mips.c (mips_va_start): Made static.
        (TARGET_EXPAND_BUILTIN_VA_START): Define.

2007-12-06  Uros Bizjak  <ubizjak@gmail.com>

        * tree-ssa-loop.c (gate_tree_parallelize_loops): Return true when
        "flag_tree_parallelize_loops > 1".
        
2007-12-06  Zdenek Dvorak  <ook@ucw.cz>
            Dorit Nuzman  <dorit@il.ibm.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/34005
        * tree-gimple.c (is_gimple_formal_tmp_rhs): Add a case for COND_EXPR.
        * gimplify.c (gimplify_ctx): Add a new member allow_rhs_cond_expr.
        (gimplify_pure_cond_expr): New function.
        (generic_expr_could_trap_p): New function.
        (gimplify_cond_expr): Call gimplify_pure_cond_expr.
        (force_gimple_operand): Initialize new field allow_rhs_cond_expr.

2007-12-06  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (s390_emit_stack_tie): New function.
        (s390_emit_prologue): Emit a stack tie when writing to the
        f8-f15 stack slots.
        * config/s390/s390.md ("stack_tie"): New insn definition.

2007-12-06  Ben Elliston  <bje@au.ibm.com>

        * SERVICE: Remove.
        * doc/sourcebuild.texi (Miscellaneous Docs): Remove SERVICE item.

2007-12-05  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/34337
        * fold-const.c (fold_binary) <case BIT_IOR_EXPR>: Don't minimize
        number of bits set in C1 if a mode mask for some mode can be used
        instead.

2007-12-05  Bernhard Fischer  <aldot@gcc.gnu.org>

        * varasm.c (merge_weak, weak_finish, assemble_alias): Commentary typo
        fixes.

2007-12-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34138
        * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_vars):
        Do not forward propagate addresses if that changes volatileness of
        the pointed-to type.

2007-12-05  Uros Bizjak  <ubizjak@gmail.com>

        PR target/34312
        * config/i386/i386.c (ix86_function_regparm): Also check for fixed
        registers when checking that regparm registers are available.
        Lower regparm value due to fixed registers usage in addition to
        global regs usage.

2007-12-05  Bernhard Fischer  <aldot@gcc.gnu.org>

        * sparseset.c: Include config.h and system.h before sparseset.h.
        * sparseset.h: Remove inclusion of system.h.

2007-12-05  Jakub Jelinek  <jakub@redhat.com>
            Richard Sandiford  <rsandifo@nildram.co.uk>

        * optabs.c (init_insn_codes): New function.
        (new_optab): Delete.
        (init_optab, init_optabv): Don't call new_optab.
        (init_convert_optab): Don't clear the insn codes.
        (init_optabs): Call init_insn_codes.

2007-12-04  Jakub Jelinek  <jakub@redhat.com>

        * omp-low.c (optimize_omp_library_calls): New function.
        (expand_omp_parallel): Call it if optimizing.

        PR middle-end/34134
        * stmt.c (expand_stack_restore): Call expand_normal on var to get
        rtx for it instead of assuming it will be a VAR_DECL.

2007-12-04  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c-parser (c_parser_statement_after_labels): Move error from here...
        (c_parser_label): ... to here. Check that the declaration is not
        actually just another label.

2007-12-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34334
        PR middle-end/34222
        * tree-ssa-operands.c (get_addr_dereference_operands): If we
        fall back to using the SMTs aliases, make sure to add virtual
        operands for the SMT itself.
        (create_ssa_artificial_load_stmt): Fix typo.  Make sure to also
        clear the loaded and stored symbols bitmaps.

2007-12-04  Ben Elliston  <bje@au.ibm.com>

        * config/spu/spu.h (ASM_FORMAT_PRIVATE_NAME): Remove; use default.

2007-12-04  Ben Elliston  <bje@au.ibm.com>

        * doc/tm.texi (Exception Handling): Mention unwind-dw2-xtensa.c.

2007-12-03  Steven Bosscher  <stevenb.gcc@gmail.com>

        PR middle-end/33713
        * doc/invoke.texi: Remove -fforce-addr documentation.
        * expr.c (emit_move_insn): Remove use of flag_force_addr.
        (expand_expr_real_1): Same.
        (do_tablejump): Same.
        Call memory_address instead of memory_address_noforce.
        * expr.h (memory_address_noforce): Remove prototype.
        * explow.c (memory_address): Remove support for flag_force_addr.
        (validize_mem): Same.
        (memory_address_noforce): Remove.
        * common.opt: Add dummy documentation for -fforce-addr.
        * combine.c (can_combine_p): Remove -fforce-addr comment.
        * config/cris/cris.h (OPTIMIZATION_OPTIONS): Remove set of
        flag_force_addr.
        * config/m68k/m68k.h (PIC_CASE_VECTOR_ADDRESS): Remove comment
        relating to memory_address_noforce.
        * testsuite/gcc.c-torture/compile/20050802-1.c: Remove.
        * testsuite/gcc.c-torture/compile/20011113-1.c: Remove.
        
2007-12-03  Jakub Jelinek  <jakub@redhat.com>

        * omp-low.c (lookup_decl_in_outer_ctx): Allow calling this
        with !ctx->is_nested.
        (maybe_lookup_decl_in_outer_ctx): Look up in outer contexts
        even if !ctx->is_nested.
        (lower_copyprivate_clauses, lower_send_clauses,
        lower_send_shared_vars): Call lookup_decl_in_outer_ctx
        unconditionally.

        PR middle-end/29749
        * fold-const.c (fold_binary) <case BIT_AND_EXPR>: Optimize
        (X << C1) & C2 into (X << C1) & (C2 | ((1 << C1) - 1))
        and (X >> C1) & C2 into (X >> C1) & (C2 | ~((type) -1 >> C1)).
        (fold_binary) <case LSHIFT_EXPR, case RSHIFT_EXPR>: Optimize
        (X & C2) << C1 into (X << C1) & (C2 << C1) and
        (X & C2) >> C1 into (X >> C1) & (C2 >> C1) if that allows further
        optimizations.

        PR tree-optimization/33453
        * tree-data-ref.c (split_constant_offset): Use POINTER_PLUS_EXPR
        for pointer addition.
        * tree-parloops.c (canonicalize_loop_ivs): Likewise.
        (separate_decls_in_loop_name): Copy DECL_GIMPLE_REG_P from var to
        var_copy.

2007-12-03  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define __FDPIC__ as
        necessary.

2007-12-03  Razya Ladelsky <razya@il.ibm.com>

        * doc/invoke.texi (fipa-cp, fipa-matrix-reorg): Add documentation.

2007-12-03  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/34317
        * opts.c (common_handle_option): Handle OPT_ftree_store_copy_prop.
        * common.opt (ftree-store-copy-prop): Use the same help text as for
        other nop switches.

2007-12-02  Ayal Zaks  <zaks@il.ibm.com>
            Revital Eres  <eres@il.ibm.com>

        * modulo-sched.c (calculate_must_precede_follow,
        try_scheduling_node_in_cycle): New functions.
        (sms_schedule_by_order): Call the new functions.
        (ps_insn_find_column): Use must_follow and must_precede only if
        they are not NULL.
        (ps_insn_advance_column): Likewise.

2007-12-02  Ayal Zaks  <zaks@il.ibm.com>
            Revital Eres  <eres@il.ibm.com>

        * modulo-sched.c (get_sched_window): Fix the direction of the
        scheduling window and add dump info.

2007-12-02  Samuel Tardieu  <sam@rfc1149.net>

        * config/sh/sh.md (cmpgeusi_t): Fix condition.

2007-11-30  Jan Hubicka  <jh@suse.cz>

        * ggc-common.c (dump_ggc_loc_statistics): Reset ggc_force_collect flag.

2007-11-30  Seongbae Park <seongbae.park@gmail.com>

        PR rtl-optimization/34171
        * cfgrtl.c (update_bb_for_insn_chain): New function,
        refactored from update_bb_for_insn.
        (update_bb_for_insn): Call update_bb_for_insn.
        (rtl_merge_blocks, try_redirect_by_replacing_jump):
        Replace a loop with update_bb_for_insn_chain call.
        (cfg_layout_merge_blocks): Add a call to
        update_bb_for_insn_chain. Replace the for loop
        with a call to update_bb_for_insn_chain.

2007-11-30  Ben Elliston  <bje@au.ibm.com>

        * config/vax/vax.h (ASM_FORMAT_PRIVATE_NAME): Remove. Use default.

2007-11-29  Zdenek Dvorak  <ook@ucw.cz>

        PR tree-optimization/34244
        * tree-vrp.c (adjust_range_with_scev): Clear scev cache.
        (record_numbers_of_iterations): New function.
        (execute_vrp): Cache the numbers of iterations of loops.
        * tree-scalar-evolution.c (scev_reset_except_niters):
        New function.
        (scev_reset): Use scev_reset_except_niters.
        * tree-scalar-evolution.h (scev_reset_except_niters): Declare.

2007-11-29  Jan Hubicka  <jh@suse.cz>
            Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/33434
        * tree-inline.c (setup_one_parameter): If the value passed to
        a parameter is never used, don't set it up.

2007-11-29  Jakub Jelinek  <jakub@redhat.com>

        PR target/32130
        * config/rs6000/eabi-cn.asm (__DTOR_END__): Make it weak.
        * config/rs6000/sol-cn.asm (__DTOR_END__): Likewise.

2007-11-29  Andris Pavenis <andris.pavenis@iki.fi>

        * Makefile.in: Use separate vpath lines for each path.

2007-11-29  Ben Elliston  <bje@au.ibm.com>

        * SERVICE: Update URL.

2007-11-28  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/34140
        * tree-if-conv.c (if_convertible_phi_p): Fail if BB other than
        loop->header has virtual phi nodes.

2007-11-28  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR target/32406
        * builtins.c (expand_builtin_nonlocal_goto): Also emit a use
        of GP register, if valid and fixed.

        Revert:
        2007-06-21  David Daney  <ddaney@avtrex.com>

        PR target/32406
        * config/mips/mips.md (define_constants): Rename UNSPEC_EH_RECEIVER
        to UNSPEC_NONLOCAL_GOTO_RECEIVER globally.
        (exception_receiver): Renamed to ...
        (nonlocal_goto_receiver): ... this.

2007-11-27  H.J. Lu  <hongjiu.lu@intel.com>
            Joey Ye <joey.ye@intel.com>

        PR target/34001
        * config/i386/i386.c (function_arg_32): Don't pass aggregate
        arguments in ECX/EDX for fastcall.

2007-11-28  Rask Ingemann Lambertsen  <rask@sygehus.dk>

        * config/i386/linux.h (CRT_GET_RFIB_DATA): Add Intel syntax inline
        asm to macro.
        * config/i386/sco5.h (CRT_GET_RFIB_DATA): Likewise.
        * config/i386/sysv4.h (CRT_GET_RFIB_DATA): Likewise.

2007-11-28  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/aix64.opt (maix64): Add Negative(maix32).
        (maix32): Add Negative(maix64).

2007-11-27  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/34016
        * tree-ssa-loop.c (pass_linear_transform): Add
        TODO_update_ssa_only_virtuals to todo_flags_finish.

2007-11-27  Eric B. Weddington  <eric.weddington@atmel.com>

        * config/avr/avr.c (avr_mcu_types): Add atmega32hvb.
        * config/avr/avr.h (LINK_SPEC): Likewise.
        (CRT_BINUTILS_SPECS): Likewsie.
        * config/avr/t-avr (MULTILIB_MATCHES): Likewise.
        
2007-11-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/34225
        * config/rs6000/rs6000.c (adjacent_mem_locations): Don't assume
        MEM_SIZE is set on all MEMs.

2007-11-27  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.opt (mhard-float): Add the option to be
        overridden.  That was missing in my last patch.

2007-11-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34241
        * tree-ssa-forwprop.c (forward_propagate_addr_expr): Make sure
        to only delete real conversion chains.

2007-11-27  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.opt (m31, m64, mesa, mzarch, msoft-float,
        mhard-float, mlong-double-64, mlong-double-128): Add the
        option to be overridden.

2007-11-27  Richard Guenther  <rguenther@suse.de>

        * builtins.c (fold_builtin_1): Verify the argument types
        of BUILT_IN_ISNORMAL.
        (fold_builtin_n): Verify the number of arguments to variadic
        built-in functions.

2007-11-27  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/elf.h (SUBTARGET_DRIVER_SELF_SPECS): New macro.
        * doc/invoke.texi (Blackfin Options): Document the effects.

2007-11-27  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/sysv4.opt (m32): Add Negative(m64).
        (m64): Add Negative(m32).
        * config/rs6000/darwin.opt (m32): Add Negative(m64).
        (m64): Add Negative(m32).

2007-11-26  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-propagate.c (set_rhs) <GIMPLE_MODIFY_STMT>: Fix typo.

2007-11-26  Michael Meissner  <michael.meissner@amd.com>

        PR target/34077
        * config/i386/i386.c (ix86_expand_movmem): If the copy size is a
        constant, avoid calling emit_cmp_and_jump_insns.  Use counter_mode
        to get the mode for loading a pseudo register with a count rather
        than duplicating code.

2007-11-25  Eric B. Weddington  <eric.weddington@atmel.com>

        * config/avr/avr.c (avr_mcu_types): Add atmega1284p.
        * config/avr/avr.h (LINK_SPEC): Likewise.
        (CRT_BINUTILS_SPECS): Likewsie.
        * config/avr/t-avr (MULTILIB_MATCHES): Likewise.

2007-11-26  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
        
        * c-common.c (conversion_warning): Use get_unwidened instead of
        get_narrower.
        
2007-11-26  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/23722
        * c-parser.c (struct c_parser): New bit in_if_block.
        (c_parser_compound_statement_nostart): Handle unexpected 'else'
        keyword.
        (c_parser_statement_after_labels): Set in_if_block to false while
        parsing.
        (c_parser_if_body): Don't call c_parser_statement_after_labels if
        a semicolon is found, just consume it. Don't call
        c_parser_statement_after_labels if an open brace is found, call
        c_parser_compound_statement instead.
        (c_parser_else_body): New.
        (c_parser_if_statement): Set in_if_block to true when parsing the
        body of the 'if' statement. Use c_parser_else_body.

2007-11-26  Andreas Krebbel  <krebbel1@de.ibm.com>

        PR c++/34081
        * c-decl.c (store_parm_decls): Pass 'false' for the new
        allocate_struct_function parameter.
        * cgraphunit.c (cgraph_build_static_cdtor): Likewise.
        * tree-parloops.c (create_loop_fn): Likewise.
        * function.c (push_function_context_to, push_struct_function,
        init_function_start): Likewise.
        (allocate_struct_function): Add boolean parameter.
        * tree.h (allocate_struct_function): Add boolean parameter.
        * function.h (struct function): Move returns_struct and
        returns_pcc_struct to the end of the structure definiton.

2007-11-26  Uros Bizjak  <ubizjak@gmail.com>

        PR target/34215
        * config/i386/i386.md (truncdfsf2): Select SLOT_TEMP stack slot if
        virtual registers are already instantiated.
        (truncxf<mode>2): Ditto.
        (floatsi<mode>2): Ditto.
        (floatdisf2): Ditto.
        (floatdidf2): Ditto.

2007-11-26  Rask Ingemann Lambertsen  <rask@sygehus.dk>

        PR target/34174
        * config/fr30/fr30.c (fr30_move_double): Sanitize mem->reg case. Copy
        the address before it is clobbered.

2007-11-26  Nick Clifton  <nickc@redhat.com>

        * config/mn10300/mn10300.md: (call_internal): Remove mode on
        operand 0 in order to match UNPSEC'ed calls generated in PIC mode.
        (call_value_internal): Remove mode on operands 0 and 1 in order to
        match UNPSEC'ed calls generated in PIC mode.
        (GOTaddr2picreg): Use copy_rtx to prevent sharing an rtx between
        two insns.

2007-11-26  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34233
        * builtins.c (expand_builtin_pow): Use expand_expr to expand
        the result of build_call_expr.

2007-11-26  Steven Bosscher  <stevenb.gcc@gmail.com> 
            Revital Eres  <eres@il.ibm.com> 

        PR middle-end/34085
        * bb-reorder.c (insert_section_boundary_note): Clear
        BLOCK_FOR_INSN in NOTE_INSN_SWITCH_TEXT_SECTIONS.

2007-11-26  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/elfoabi.h (DRIVER_SELF_SPECS): Add missing comma.

2007-11-26  Alexandre Oliva  <aoliva@redhat.com>

        * dwarf2asm.c (splay_tree_compare_strings): New function.
        (dw2_force_const_mem): Use it.

2007-11-26  Alexandre Oliva  <aoliva@redhat.com>

        * tree.c (type_hash_add): Don't violate strict aliasing rules.

2007-11-26  Alexandre Oliva  <aoliva@redhat.com>

        PR c/27898
        * c-typeck.c (tagged_types_tu_compatible_p): Enable exact
        matches between anonymous union fields.

2007-11-26  Alexandre Oliva  <aoliva@redhat.com>, Jan Hubicka  <jh@suse.cz>

        * tree-ssa-live.c (remove_unused_scope_block_p): Drop
        declarations and blocks only after inlining.  Check that
        non-empty blocks are not dropped.
        * tree-inline.c (expand_call_inline): Check that functions are
        not inlined too late.

2007-11-26  Ben Elliston  <bje@au.ibm.com>

        * unwind-dw2-fde.c: Fix comment typo.
        * unwind-generic.h: Likewise, fix comment typos.
        
2007-11-25  Richard Sandiford  <rsandifo@nildram.co.uk>

        * tree-sra.c (scalarize_use): Adjust the vpos argument to
        sra_explode_bitfield_assignment in cases where the type is
        wider than the bitfield.

2007-11-25  Richard Guenther  <rguenther@suse.de>

        * tree.h (struct tree_block): Move locus member next to flags.
        * c-decl.c (SCOPE_LIST_APPEND): Use BLOCK_CHAIN.
        (SCOPE_LIST_CONCAT): Likewise.
        (pop_scope): Likewise.
        * function.c (instantiate_decls_1): Likewise.
        (setjmp_vars_warning): Likewise.
        * emit-rtl.c (set_used_decls): Likewise.
        * tree-inline.c (add_lexical_block): Likewise.

2007-11-24  Hans-Peter Nilsson  <hp@axis.com>

        * rtlanal.c (label_is_jump_target_p): Return true for a matching
        REG_LABEL_TARGET.
        * reorg.c (fill_slots_from_thread): Correct last change to use
        NULL_RTX, not NULL.  Outside of REG_NOTES loop, increase and
        decrease LABEL_NUSES for JUMP_LABEL (trial), not XEXP (note, 0).
        * jump.c (mark_jump_label_1): Add comment for last change
        regarding JUMP_LABEL setting.
        * gcse.c (add_label_notes): Remove conditional that the label is
        mentioned in insn before adding regnote.
        * sched-rgn.c (is_cfg_nonregular): Don't return 1 for a
        single_set insn only feeding a label to a jump through a
        register that dies there.

2007-11-23  Dirk Mueller  <dmueller@suse.de>
            Richard Guenther <rguenther@suse.de>

        PR middle-end/34197
        * tree-vrp.c (check_array_ref): Move check for valid location..
        (check_array_bounds) here. Use EXPR_HAS_LOCATION().

2007-11-23  Hans-Peter Nilsson  <hp@axis.com>

        * reload.c (find_reloads_address_1) <autoincdec cases>:
        Call REG_OK_FOR_CONTEXT with the autoincdec code, not outer_code.

2007-11-23  Richard Guenther  <rguenther@suse.de>
            Michael Matz  <matz@suse.de>

        PR tree-optimization/34176
        * alloc-pool.h (empty_alloc_pool): Declare.
        * alloc-pool.c (empty_alloc_pool): New function.
        * tree-ssa-sccvn.c (vn_reference_lookup): Also lookup from the
        valid table if a lookup from the optimistic table failed.
        (vn_unary_op_lookup): Likewise.
        (vn_binary_op_lookup): Likewise.
        (vn_phi_lookup): Likewise.
        (process_scc): Clear optimistic tables before every iteration.

2007-11-23  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-copy.c (may_propagate_copy): Remove redundant checks.
        (merge_alias_info): Do verification only if checking is
        enabled.  Merge flow-sensitive alias information in simple cases.
        * tree-ssa-operands.c (get_addr_dereference_operands): Also
        complain about missing NMTs.

2007-11-23  Jakub Jelinek  <jakub@redhat.com>

        PR c++/34198
        * c-common.c (conversion_warning): For INTEGER_TYPE to
        INTEGER_TYPE conversions call get_narrower on expr to avoid
        spurious warnings from binop shortening or when the implicit
        conversion can't change the value.

2007-11-22  Joseph Myers  <joseph@codesourcery.com>

        PR c/14050
        * c-decl.c (set_array_declarator_inner): Don't give error for
        static or type qualifiers in abstract declarator.  Remove
        abstract_p parameter.
        * c-tree.h (set_array_declarator_inner): Update prototype.
        * c-parser.c (c_parser_direct_declarator_inner): Update call to
        set_array_declarator_inner.
        * doc/standards.texi: Update for C99 TC3.

2007-11-22  Hans-Peter Nilsson  <hp@bitrange.com>

        * config/mmix/mmix.c (mmix_encode_section_info): Remove duplicate
        line in my edit of the last change.

2007-11-22  Jakub Jelinek  <jakub@redhat.com>

        PR target/33947
        * config/arm/arm.c (arm_init_tls_builtins): Set TREE_NOTHROW
        and TREE_READONLY on the fn decl rather than passing a chain
        of attributes.

2007-11-22  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.md (divsi_inv_m3): Handle zero dividend specially.

2007-11-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (TARGET_CPU_CPP_BUILTINS): Change checking
        of ix86_arch and ix86_tune into a switch statement.
        (enum processor_type): Default PROCESSOR_I386 to 0.
        * config/i386/i386.c (ix86_decompose_address): Use TARGET_K6 instead
        of "ix86_tune == PROCESSOR_K6".
        (ia32_multipass_dfa_lookahead): Change checking of ix86_tune into
        a switch statement.

2007-11-22  Tom Tromey  <tromey@redhat.com>

        * config/mmix/mmix.c (mmix_encode_section_info): Use alloca to
        avoid writing into string allocated by ggc_alloc_string.

2007-11-21  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/34155
        * config/sh/sh.md (binary_sf_op): Remove.
        (binary_sf_op0, binary_sf_op1): New define_insn_and_split.
        * config/sh/sh.c (sh_expand_binop_v2sf): Use gen_binary_sf_op0
        and gen_binary_sf_op1.

2007-11-21  Hans-Peter Nilsson  <hp@axis.com>

        * regclass.c (init_reg_autoinc): Fix typo preventing test of
        secondary output reload when setting forbidden_inc_dec_class.

2007-11-21  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34148
        * tree-ssa-structalias.c (create_variable_info_for): Do not use
        field-sensitive PTA for single-element structures.
        * tree-ssa-alias.c (create_overlap_variables_for): Do not create
        SFTs for single-element structures.

2007-11-20  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34154
        * gimplify.c (gimplify_switch_expr): Use tree_int_cst_lt instead
        of the signed INT_CST_LT.
        * stmt.c (expand_case): Likewise.
        (estimate_case_costs): Likewise.

2007-11-20  Rask Ingemann Lambertsen  <rask@sygehus.dk>

        * read-rtl.c (fatal_expected_char): Print EOF as text rather that
        its binary representation.

2007-11-20  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-operands.c (add_virtual_operand): Consistently prune
        accesses.

2007-11-20  Thiemo Seufer  <ths@mips.com>

        * config/mips/mips.c (mips_file_start): Add support for
        flagging 32-bit code with -mfp64 floating-point.

2007-11-20  Jakub Jelinek  <jakub@redhat.com>

        PR c/34146
        * c-gimplify.c (optimize_compound_literals_in_ctor): New function.
        (c_gimplify_expr): Use it.

2007-11-20  Ben Elliston  <bje@au.ibm.com>

        * config/spu/spu_mfcio.h: Fix typo.

2007-11-20  Ben Elliston  <bje@au.ibm.com>

        * unwind.inc: Comment that unwind-sjlj.c includes this file.

2007-11-20  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
            Ben Elliston  <bje@au.ibm.com>

        * config/spu/mfc_tag_release.c: New file.
        * config/spu/mfc_multi_tag_release.c: Likewise.
        * config/spu/mfc_multi_tag_reserve.c: Likewise.
        * config/spu/mfc_tag_release.c: Likewise.
        * config/spu/mfc_tag_reserve.c: Likewise.
        * config/spu/mfc_tag_table.c: Likewise.
        * config/spu/t-spu-elf (LIB2FUNCS_STATIC_EXTRA): Compile them.
        (TARGET_LIBGCC2_CFLAGS): Define __IN_LIBGCC2.
        * config/spu/spu_mfcio.h: Avoid <stdint.h>.
        (uint64_t): Typedef if __IN_LIBGCC2 is defined.
        (MFC_TAG_INVALID, MFC_TAG_VALID): New macros.
        (mfc_tag_reserve, mfc_tag_release, mfc_multi_tag_reserve,
        mfc_multi_tag_release): Likewise.
        (__mfc_tag_reserve, __mfc_tag_release, __mfc_multi_tag_reserve,
        __mfc_multi_tag_release): Declare.

2007-11-19  Jason Merrill  <jason@redhat.com>

        PR debug/28834, debug/29436, c/32326
        * tree.c (build_type_attribute_qual_variant): Refuse to make
        a distinct copy of a struct/enum type.  Use build_distinct_type_copy.
        * doc/extend.texi (Type Attributes): Don't encourage people to add
        attributes to struct/enum types in a typedef.  Fix
        transparent_union example.

        * tree-inline.c (remap_type_1): Remove code that's redundant with
        remap_type.
        (build_duplicate_type): Set id.copy_decl.
        * c-common.c (handle_transparent_union_attribute): Simplify logic.

2007-11-19  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/rs6000.c (invalid_e500_subreg,
        rs6000_legitimate_offset_address_p, legitimate_lo_sum_address_p,
        rs6000_legitimize_address, rs6000_legitimize_reload_address,
        rs6000_legitimate_address, function_arg_advance,
        spe_build_register_parallel, rs6000_spe_function_arg,
        rs6000_split_multireg_move, spe_func_has_64bit_regs_p,
        emit_frame_save, gen_frame_mem_offset, rs6000_function_value,
        rs6000_libcall_value, rs6000_dwarf_register_span): Handle DDmode and
        TDmode similarly to DFmode and TFmode.
        * config/rs6000/rs6000.h (LOCAL_ALIGNMENT, MEMBER_TYPE_FORCES_BLK,
        DATA_ALIGNMENT, CLASS_MAX_NREGS, CANNOT_CHANGE_MODE_CLASS): Likewise.

2007-11-19  Eric Botcazou  <ebotcazou@adacore.com>

        * stor-layout.c (lang_adjust_rli): Delete.
        (set_lang_adjust_rli): Likewise.
        (layout_type): Do not call lang_adjust_rli hook.
        * tree.h (set_lang_adjust_rli): Delete.

2007-11-19  Bernd Schmidt  <bernd.schmidt@analog.com>
        
        * config/bfin/bfin.c (must_save_p): New function, mostly broken out of
        n_dregs_to_save and n_pregs_to_save.
        (n_pregs_to_save, n_dregs_to_save): Use it.  New argument CONSECUTIVE;
        all callers changed.
        (expand_prologue_reg_save, expand_epilogue_reg_restore): Enhance to be
        able to save single D/P registers that aren't saved by the push/pop
        multiple insns.

2007-11-19  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34099
        * tree-ssa-ccp.c (likely_value): Exclude all but PLUS_EXPR,
        MINUS_EXPR and POINTER_PLUS_EXPR from handling as UNDEFINED
        if only one operand is undefined.

2007-11-19  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR tree-optimization/34036
        * opts.c (set_fast_math_flags): Do not set flags in common
        with set_unsafe_math_optimizations_flags, invoke it directly.
        (set_unsafe_math_optimizations_flags): Unset flag_trapping_math
        and flag_signed_zeros.
        * toplev.c (process_options): Force flag_associative_math to 0 and
        warn, if it is set and either flag_trapping_math or flag_signed_zeros
        is set too.
        * doc/invoke.texi (Optimize Options): Document the new behavior
        of -funsafe-math-optimizations, that -fassociative-math requires
        both -fno-signed-zeros and -fno-trapping-math and make it clear
        that -fno-trapping-math requires -fno-signaling-nans.  Refactor
        documentation of -ffast-math.

2007-11-18  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/34132
        * gcse.c (try_replace_reg): Avoid rtx sharing between REG_EQUAL note
        and insn.

        PR middle-end/33335
        * optabs.h (optab_table): Change type to struct optab from optab.
        (convert_optab_table): Similarly.
        Adjust all _optab macros to expand to addresses of optab_table
        resp. convert_optab_table elements rather than the values of the
        elements.
        * optabs.c (optab_table): Change typype to struct optab from optab.
        If compiled by recent GCC, initialize all the insn_code fields in
        the array using designated range initializers.
        (convert_optab_table): Similarly.
        (convert_optab_libfunc, optab_libfunc, set_optab_libfunc,
        set_conv_libfunc): Into libfunc_entry's optab field store index within
        optab_table resp. convert_optab_table array instead of difference
        between two separately malloced addresses.
        (new_optab): Add op argument, don't return anything.  Initialize
        just the insn_code field in handlers array and only when needed.
        (init_optab, init_optabv): Add op argument, don't return anything.
        Adjust new_optab caller.
        (new_convert_optab): Removed.
        (init_convert_optab): Add op argument, don't return anything, don't
        call new_convert_optab.  If needed, initialize insn_code field in
        handlers array.
        (init_optabs): Adjust init_optab, init_optabv and init_convert_optab
        callers.
        (debug_optab_libfuncs): Adjust uses of optab_table and
        convert_optab_table arrays.

2007-11-18  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34127
        * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_vars):
        Make code match up the comments, require compatibility of the
        pointed-to types.

2007-11-17  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34130
        * fold-const.c (extract_muldiv_1): Do not move negative
        constants inside ABS_EXPR.

2007-11-16  Ian Lance Taylor  <iant@google.com>

        * collect2.c (dump_file): If a demangled symbol is followed by a
        space, make sure we output at least one space.

2007-11-16  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34030
        * fold-const.c (fold_binary): Use correct types for folding
        1 << X & Y to Y >> X & 1.

2007-11-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/33870
        * tree.h (struct tree_memory_tag): Add base_for_components flag.
        (struct tree_struct_field_tag): Remove nesting_level field.
        (SFT_NESTING_LEVEL): Remove.
        (SFT_BASE_FOR_COMPONENTS_P): Add.
        * tree-flow.h (struct fieldoff): Remove nesting_level field.  Add
        base_for_components flag.
        (push_fields_onto_fieldstack): Remove nesting_level parameter.
        * tree-ssa-alias.c (create_sft): Likewise.  Add base_for_components
        parameter.
        (create_overlap_variables_for): Deal with it.
        * tree-dfa.c (dump_subvars_for): Likewise.
        (dump_variable): Likewise.
        * tree-ssa-structalias.c (push_fields_onto_fieldstack): Likewise.
        Set base_for_components for first elements of sub-structures.
        (create_variable_info_for): Handle base_for_components.
        (set_uids_in_ptset): Always set SFT_UNPARTITIONABLE_P for
        pointed-to SFTs if SFT_BASE_FOR_COMPONENTS_P is set.
        * tree-ssa-operands.c (ref_nesting_level): Remove.
        (add_vars_for_offset): Remove full_ref parameter, always add
        the offset of the pointed-to SFT.
        (add_virtual_operand): Adjust for changed signature of
        add_vars_for_offset.

2007-11-16  Sa Liu  <saliu@de.ibm.com>

        * config/spu/spu.md (floatunssidf2, floatunsdidf2): Inlined 
        floatunssidf2 and floatunsdidf2.

2007-11-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34113
        * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_vars):
        Use correct conversion direction for checking type compatibility.

2007-11-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34099
        * tree-ssa-ccp.c (likely_value): Use a whitelist for operators
        that produce UNDEFINED result if at least one of its operands
        is UNDEFINED.  By default the result is only UNDEFINED if all
        operands are UNDEFINED.

2007-11-16  Jakub Jelinek  <jakub@redhat.com>

        PR driver/30460
        * gcc.c (init_spec): Don't initialize asm_debug here...
        (main): ... but here.

2007-11-07  Tom Tromey  <tromey@redhat.com>

        * tree-ssa-structalias.c (ipa_pta_execute): Rename 'cfun' to 'func'. 
        * tree-parloops.c (create_loop_fn): Use set_cfun.
        * gengtype.c (open_base_files): Emit #undef cfun.
        * ipa-struct-reorg.c (do_reorg_1): Use set_cfun.
        * function.h (cfun): New define.
        * function.c: Undefine cfun.

2007-11-07  Eric B. Weddington  <eweddington@cso.atmel.com>

        * config/avr/avr.c (avr_mcu_types): Add attiny88.
        * config/avr/avr.h (LINK_SPEC): Likewise.
        (CRT_BINUTILS_SPECS): Likewsie.
        * config/avr/t-avr (MULTILIB_MATCHES): Likewise.

2007-11-15  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/23848
        * tree-ssa-ccp.c (optimize_stack_restore): New function.
        (execute_fold_all_builtins): Call optimize_stack_restore for
        BUILT_IN_STACK_RESTORE.

2007-11-15  Paolo Bonzini  <bonzini@gnu.org>

        * fwprop.c (try_fwprop_subst): Skip profitability check for forward
        propagation into an address; that's done in should_replace_address.
                
2007-11-15  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/spu-protos.h (legitimate_const): Remove prototype.
        * config/spu/spu.c (legitimate_const): Remove.
        (classify_immediate): Inline call to legitimate_const.
        (spu_legitimate_address): Likewise.  Allow SYMBOL_REF + CONST_INT
        for any constant, not just -512 .. 511.

2007-11-15  Sa Liu  <saliu@de.ibm.com>

        * config/spu/spu.c (spu_emit_branch_or_set): Remove PROCESSOR_CELL
        condition from HONOR_NANS test.
        * config/spu/spu.md (ceq_df): Always generate comparison code
        inline, including checks for NaNs and infinities.
        (cgt_df): Likewise.
        (cgt_v2df): Likewise.
        (cmpdf): Make this expander unconditional.

2007-11-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.c (create_overlap_variables_for): Make sure
        to only create SFTs if we also create variable infos for PTA.
        * tree-ssa-structalias.c (set_uids_in_ptset): Add all overlapping SFTs.

2007-11-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (set_uids_in_ptset): Use the pointed-to
        type for TBAA pruning.
        (find_what_p_points_to): Call set_uids_in_ptset with the original
        pointer, not the decl of the solution we collapsed to.

2007-11-14  David Daney  <ddaney@avtrex.com>

        * config/mips/linux-unwind.h (mips_fallback_frame_state): Use CFA
        to find sigcontext.

2007-11-14  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR target/33923
        * config/ia64/ia64.h (CANNOT_CHANGE_MODE_CLASS): Forbid mode changes
        for registers in BR_REGS class.

2007-11-14  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/34088
        * tree-ssa.c (delete_tree_ssa): Don't call fini_ssa_operands if
        init_ssa_operands has not been called for cfun.

2007-11-14  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR tree-optimization/34046
        * cfg.c (update_bb_profile_for_threading): Avoid the division for the
        scaling if the old probability is greater than the new base.

2007-11-14  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Remove
        unused edges after loop duplication.

2007-11-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (TARGET_CPU_DEFAULT_*): Substitute with ...
        (enum target_cpu_default): ... this enum.
        (TARGET_CPU_DEFAULT_NAMES): Remove macro.  Move initializer to ...
        * config/i386/i386.c (override_options): ... here.
        * config/i386/i386-interix.h (TARGET_CPU_DEFAULT): Use
        TARGET_CPU_DEFAULT_i486.

2007-11-14  Rask Ingemann Lambertsen  <rask@sygehus.dk>

        * global.c (rest_of_handle_global_alloc): Fix comment typos.
        * config/sh/sh.c (sh_rtx_costs): Likewise.
        * ChangeLog: Likewise.

2007-11-13  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-chrec.h (build_polynomial_chrec): RHS of a chrec
        should not be of pointer type.

2007-11-13  Michael Meissner  <michael.meissner@amd.com>

        * config/i386/i386.c (ix86_sse5_valid_op_p): Put type on separate line.

2007-11-13  Sterling Augustine  <sterling@tensilica.com>
            Bob Wilson  <bob.wilson@acm.org>
        
        * config/xtensa/unwind-dw2-xtensa.c: New.
        * config/xtensa/unwind-dw2-xtensa.h: New.
        * config/xtensa/xtensa.h (MUST_USE_SJLJ_EXCEPTIONS): Remove.
        (DWARF2_UNWIND_INFO): Remove.
        (DWARF_FRAME_REGISTERS): Define.
        (EH_RETURN_DATA_REGNO): Define.
        * config/xtensa/xtensa.md (UNSPECV_EH_RETURN): Define.
        (eh_return): New.
        * config/xtensa/t-xtensa (LIB2ADDEH): Define.
        
2007-11-13  Jakub Jelinek  <jakub@redhat.com>

        * doc/invoke.texi: Fix description of -fsched-stalled-insns=0,
        -fsched-stalled-insns.

        PR tree-optimization/34063
        * tree-chrec.c (chrec_evaluate): Put CHREC_LEFT based argument
        as first chrec_fold_plus operand rather than second.

2007-11-13  Diego Novillo  <dnovillo@google.com>

        PR tree-optimization/33870
        * tree.h (strcut tree_memory_tag): Add field unpartitionable.
        Remove field in_nested_struct.
        (struct tree_struct_field_tag): Add field nesting_level.
        (sft_in_nested_struct): Remove.
        (sft_nesting_level): Define.
        (sft_unpartitionable_p): Define.
        * tree-ssa-alias.c (mem_sym_score): If mp->var is not
        partitionable, return long_max.
        (compute_memory_partitions): Do not partition sfts marked
        unpartitionable.
        (create_sft): Add argument nesting_level.  Set
        sft_nesting_level with it.  Update all users.
        (create_overlap_variables_for): Show nesting level.
        * tree-dfa.c (dump_subvars_for): Likewise.
        (dump_variable): Likewise. Show whether the sft is
        partitionable or not.
        * tree-flow.h (struct fieldoff): Remove field in_nested_struct.
        Add field nesting_level.
        * tree-ssa-structalias.c (struct variable_info): Remove
        field in_nested_struct.
        (push_fields_onto_fieldstack): Add argument nesting_level.
        Update all users.  Update documentation. Update pair->nesting_level
        with nesting_level.  Make recursive calls with nesting_level + 1.
        (set_uids_in_ptset): If an sft is added to the points-to set,
        mark it as unpartitionable.
        * tree-ssa-operands.c (ref_nesting_level): New.
        (add_vars_for_offset): Call it.  Add argument full_ref. Update
        callers.  If var is inside a nested structure and the nesting level
        of full_ref is lower than the nesting level of var,
        adjust offset by the offset of var.

2007-11-13  Victor Kaplansky  <victork@il.ibm.com>

        PR tree-optimization/32582
        * Makefile.in (CRTSTUFF_CFLAGS): Add -fno-tree-vectorize

2007-11-12  Danny Smith  <dannysmith@users.sourceforge.net>

        * doc/extend.texi (dllimport): Document that pointers to dllimport'd
        functions can be used as constant.

2007-11-12  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/34035
        * cse.c (cse_cfg_altered): New global variable.
        (cse_jumps_altered): Make boolean.
        (recorded_label_ref): Likewise.
        (cse_insn): Adjust for above changes.
        (cse_extended_basic_block): Likewise.  Set cse_cfg_altered
        if dead edges have been purged.
        (cse_main): Change return value specification and adjust code.
        (rest_of_handle_cse): Adjust for above change.
        (rest_of_handle_cse2): Likewise.
        * gcse.c (rest_of_handle_gcse): Likewise.

2007-11-12  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>
            Michael Meissner  <michael.meissner@amd.com>

        * config/i386/i386.md (sse5_setcc<mode>): Use <ssemodefsuffix> to
        get the appropriate suffix for the coms* instruction.
        (sse5_pcmov_<mode>): Restrict operands of pcmov
        for scalar case to be only xmm registers and not memory.

        * config/i386/sse.md (sse5_pcmov_<mode>): Correct the operand
        constraints to follow the mnemonics for the pcmov instruction   

2007-11-12  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR target/34042
        * config/mips/mips.c (mips_return_fpr_single): New function.
        (mips_function_value): Use it when returning single-field
        aggregates in FPRs.
        (mips_expand_call): Handle the PARALLELs created by
        mips_return_fpr_single.

2007-11-12  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34070
        * fold-const.c (fold_binary): If testing for non-negative
        operands with tree_expr_nonnegative_warnv_p make sure to
        use op0 which has all (sign) conversions retained.

2007-11-12  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34027
        * fold-const.c (fold_binary): Fold n - (n / m) * m to n % m.
        (fold_binary): Fold unsinged FLOOR_DIV_EXPR to TRUNC_DIV_EXPR.

2007-11-12  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/33953
        * tree-vect-transform.c (vectorizable_operation): In case of SLP,
        allocate vec_oprnds1 according to the number of created vector
        statements. In case of shift with scalar argument, store scalar operand
        for every vector statement to be created for the SLP node. Fix a
        comment.

2007-11-10  Steven Bosscher  <stevenb.gcc@gmail.com>

        * gcse.c (CUID_INSN): Remove.
        (cuid_insn): Ditto.
        (alloc_gcse_mem): Don't allocate cuid_insn.
        (free_gcse_mem): Don't free cuid_insn.

2007-11-10  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/34020
        * gimplify.c (goa_lhs_expr_p): Inside INDIRECT_REF handle unshared
        nops.

        PR middle-end/34018
        * tree-inline.h (copy_body_data): Add regimplify field.
        * tree-inline.c (copy_body_r): Set id->regimplify to true
        if an TREE_INVARIANT ADDR_EXPR is no longer invariant after
        substitutions.
        (copy_bb): Clear id->regimplify before walk_tree, if it is
        set afterwards, regimplify the whole statement.

        PR tree-optimization/33680
        * tree-data-ref.c (split_constant_offset) <case ADDR_EXPR>: Punt
        if the added cast involves variable length types.

2007-11-09  Alexander Monakov  <amonakov@ispras.ru>
            Maxim Kuvyrkov  <maxim@codesourcery.com>

        * sched-deps.c (sched_analyze_insn): Use MOVE_BARRIER
        instead of TRUE_BARRIER for jumps.  Add register dependencies
        even when reg_pending_barrier is set.

2007-11-09  Alexander Monakov  <amonakov@ispras.ru>

        * haifa-sched.c (haifa_classify_insn): Rename to ...
        (haifa_classify_rtx): ...  this.  Improve handling of COND_EXECs,
        handle PARALLELs by recursing.  Use it ...  
        (haifa_classify_insn): ...  here.  Reimplement.

2007-11-09  Richard Guenther  <rguenther@suse.de>

        * bitmap.h (bitmap_single_bit_set_p): Declare.
        * bitmap.c (bitmap_single_bit_set_p): New function.
        * tree-ssa-alias.c (add_may_alias_for_new_tag): Use it.
        (maybe_create_global_var): Use bitmap_empty_p.

2007-11-09  Paolo Bonzini  <bonzini@gnu.org>
            Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/34012
        * fwprop.c (try_fwprop_subst): Do not replace if the new
        SET_SRC has a higher cost than the old one.

2007-11-09  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/33732
        * reload.c (push_reload): Check that the REG_DEAD note was referring
        to a hardreg or to a pseudo that has been assigned exactly one hardreg
        before considering it in order to select the reload register.
        (combine_reloads): Likewise.
        (find_dummy_reload): Likewise.

2007-11-09  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (struct ptr_info_def): Make escape_mask a
        ENUM_BITFIELD.
        (struct ptr_info_def): Likewise.
        (enum escape_type): Also use bit zero.

2007-11-09  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/33604
        * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_vars):
        Disregard changes in CV qualifiers of pointed to types for
        forward propagating ADDR_EXPRs.
        * tree-ssa-ccp.c (fold_stmt_r): Preserve volatileness of the original
        expression.

2007-11-09  Richard Sandiford  <rsandifo@nildram.co.uk>

        * dse.c (find_shift_sequence): Always choose an integer mode for
        new_mode.
        (replace_read): Require both the read and store mode to be
        integer ones.  Remove a then-redundant FLOAT_P check.

2007-11-08  Richard Guenther  <rguenther@suse.de>

        * tree-dfa.c (remove_referenced_var): If removing a
        variable which has subvars, also remove those from
        the referenced vars.  Do not create a variable annotation.

2007-11-08  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (xtensa_expand_prologue): Remove first
        argument for gen_entry calls.
        * config/xtensa/xtensa.md: Add new "entry" value to "type" attribute.
        (entry): Use the new attribute value.  Remove unused first operand.

2007-11-08  Tom Tromey  <tromey@redhat.com>

        * c-parser.c (c_parser_translation_unit): Use location in error.
        (c_parser_external_declaration): Likewise.
        (c_parser_declaration_or_fndef): Likewise.
        (c_parser_enum_specifier): Likewise.
        (c_parser_struct_or_union_specifier): Likewise.
        (c_parser_struct_declaration): Likewise.
        (c_parser_typeof_specifier): Likewise.
        (c_parser_parms_list_declarator): Likewise.
        (c_parser_asm_string_literal): Likewise.
        (c_parser_braced_init): Likewise.
        (c_parser_initelt): Likewise.
        (c_parser_compound_statement_nostart): Likewise.
        (c_parser_statement_after_labels): Likewise.
        (c_parser_do_statement): Likewise.
        (c_parser_asm_statement): Likewise.
        (c_parser_conditional_expression): Likewise.
        (c_parser_unary_expression): Likewise.
        (c_parser_sizeof_expression): Likewise.
        (c_parser_postfix_expression): Likewise.
        (c_parser_postfix_expression_after_paren_type): Likewise.
        (c_parser_objc_class_instance_variables): Likewise.
        (c_parser_objc_method_definition): Likewise.
        (c_parser_objc_methodprotolist): Likewise.
        (c_parser_pragma): Likewise.
        (c_parser_omp_clause_num_threads): Likewise.
        (c_parser_omp_clause_schedule): Likewise.
        (c_parser_omp_all_clauses): Likewise.
        (c_parser_omp_sections_scope): Likewise.
        (c_parser_label): Use location of label, not colon.

2007-11-08  Danny Smith  <dannysmith@users.sourceforge.net>

        PR target/33774
        * config/i386/cygming.h (BIGGEST_FIELD_ALIGNMENT): Define only if
        IN_TARGET_LIBS.

2007-11-07  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR middle-end/33826
        * ipa-pure-const.c (static_execute): Added code to keep recursive
        functions from being marked as pure or const.
        * ipa-utils.c (searchc): Fixed comment.
                
2007-11-08  Tom Tromey  <tromey@redhat.com>

        * common.opt (fshow-column): Default to 0.
        * configure: Rebuilt.
        * configure.ac (--enable-mapped-location): Default to 'yes'.

2007-11-07  Kenneth Zadeck <zadeck@naturalbridge.com>

        * common.opt: Add pointer to doc/options.texi.
        * doc/invoke.texi (-fdse, -fdce, -fauto-inc-dec, -fipa-pure-const,
        -fipa-reference): Add or correct doc.  Sorted options list for -Os
        -O, -O2.

2007-11-07  Bernhard Fischer  <aldot@gcc.gnu.org>

        PR target/16350
        * config.gcc: For arm*b-* define TARGET_BIG_ENDIAN_DEFAULT.
        * config/arm/linux-elf.h (TARGET_ENDIAN_DEFAULT): Define based on
        TARGET_BIG_ENDIAN_DEFAULT.  Use for MULTILIB_DEFAULTS.
        (TARGET_DEFAULT): Set according to TARGET_ENDIAN_DEFAULT.
        (LINUX_TARGET_LINK_SPEC): Pass -mlittle-endian on to the assembler.
        * config/arm/linux-eabi.h (TARGET_LINKER_EMULATION): Set according
        to TARGET_BIG_ENDIAN_DEFAULT.
        (SUBTARGET_EXTRA_LINK_SPEC): Likewise.
        * config/arm/bpabi.h (TARGET_DEFAULT_MASK): Set according
        to TARGET_BIG_ENDIAN_DEFAULT.

2007-11-07  Diego Novillo  <dnovillo@google.com>

        * tree.h (struct tree_struct_field_tag): Move field
        in_nested_struct ...
        (struct tree_memory_tag): ... here.

2007-11-07  Diego Novillo  <dnovillo@google.com>

        PR 33870
        * tree.h (struct tree_struct_field_tag): Add field in_nested_struct.
        (SFT_IN_NESTED_STRUCT): Define.
        * tree-dfa.c (dump_subvars_for): Show offset of each sub-var.
        * tree-flow.h (struct fieldoff): Add field in_nested_struct.
        * tree-ssa-structalias.c (struct variable_info): Likewise.
        (push_fields_onto_fieldstack): If OFFSET is positive,
        set in_nested_struct.
        (create_variable_info_for): Copy setting of
        in_nested_struct from the field offset object.
        (set_uids_in_ptset): Set SFT_IN_NESTED_STRUCT from the
        variable info object.
        * tree-ssa-operands.c (add_vars_for_offset): If VAR
        belongs to a nested structure, adjust OFFSET by SFT_OFFSET(VAR).

2007-11-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/33737
        * cfgcleanup.c (try_crossjump_to_edge): Add count and frequency of
        target block after computing the probabilities of outgoing edges.
        Cap the frequency to BB_FREQ_MAX.
        * tree-ssa-threadupdate.c (redirect_edges): Also adjust count and
        frequency of the basic block if it has been reused.

2007-11-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/33822
        * rtl.h (REG_OFFSET): Fix comment.
        * var-tracking.c (INT_MEM_OFFSET): New macro.
        (var_mem_set): Use it.
        (var_mem_delete_and_set): Likewise.
        (var_mem_delete): Likewise.
        (same_variable_part_p): Likewise.
        (vt_get_decl_and_offset): Likewise.
        (offset_valid_for_tracked_p): New predicate.
        (count_uses): Do not track locations with invalid offsets.
        (add_uses): Likewise.
        (add_stores): Likewise.

2007-11-07  Tom Tromey  <tromey@redhat.com>

        * Makefile.in (tree-ssa-structalias.o): Depend on $(FUNCTION_H)
        (BASIC_BLOCK_H): Add vec.h, $(FUNCTION_H).

2007-11-07  Dmitry Zhurikhin  <zhur@ispras.ru>
            Andrey Belevantsev  <abel@ispras.ru>

        * modulo-sched.c (sms_order_nodes, permute_partial_schedule,
        generate_prolog_epilog, duplicate_insns_of_cycles): Fix prototypes.
        (calculate_order_params, sms_order_nodes): New parameter pmax_asap.
        Save calculated max_asap in it.         
        (sms_schedule): Calculate maxii using max_asap.

2007-11-07  Andreas Krebbel  <krebbel1@de.ibm.com>

        * doc/invoke.texi: Replace rs6000 dfp switches -mdfp/-mno-dfp
        with -mhard-dfp/-mno-hard-dfp.

2007-11-07  Maxim Kuvyrkov  <maxim@codesourcery.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/33670
        * haifa-sched.c (check_sched_flags): Remove.
        (sched_init): Don't call it.

2007-11-06  Diego Novillo  <dnovillo@google.com>

        * tree-flow.h (struct fieldoff): Reformat comment. Document fields.
        * tree-ssa-operands.c: Tidy top-level comments.
        (add_vop): Likewise.
        (add_vars_for_offset): Tidy parameter formatting..
        (get_addr_dereference_operands): Likewise.
        (get_indirect_ref_operands): Likewise.
        (get_expr_operands) <OMP_ATOMIC_LOAD>: Reformat.
        <OMP_ATOMIC_STORE>: Likewise.

2007-11-06  Rask Ingemann Lambertsen  <rask@sygehus.dk>

        PR target/32787
        * config/i386/driver-i386.c: Test for __GNUC__ instead of
        GCC_VERSION which is always defined.

2007-11-06  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        PR target/30961
        * reload1.c (find_reloads): Also check in_reg when handling a
        simple move with an input reload and a destination of a hard register.

2007-11-06  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * config/m68k/m68k.c (sched-int.h, insn-codes.h): New includes.
        (TARGET_SCHED_ADJUST_COST, TARGET_SCHED_VARIABLE_ISSUE,
        TARGET_SCHED_INIT_GLOBAL, TARGET_SCHED_FINISH_GLOBAL,
        TARGET_SCHED_INIT, TARGET_SCHED_DFA_PRE_ADVANCE_CYCLE,
        TARGET_SCHED_DFA_POST_ADVANCE_CYCLE): Redefine.
        (m68k_sched_attr_type2): New function.
        (sched_adjust_cost_state): New static variable.
        (m68k_sched_adjust_cost): New static function implementing
        scheduler hook.
        (sched_ib_size, sched_ib_filled, sched_ib_insn, sched_mem_unit_code):
        New static variables.
        (m68k_sched_variable_issue): New static function implementing
        scheduler hook.
        (sched_dump_class_def, sched_dump_class_func_t): New typedefs.
        (sched_dump_split_class): New static function.
        (sched_dump_dfa_guess_unit_code, sched_dump_dfa_state): New static
        variables.
        (sched_dump_dfa_class, m68k_sched_dump): New static function.
        (m68k_sched_md_init_global, m68k_sched_md_finish_global,
        m68k_sched_md_init, m68k_sched_dfa_pre_advance_cycle,
        m68k_sched_dfa_post_advance_cycle): New static functions implementing
        scheduler hooks.

        * config/m68k/m68k.h (m68k_sched_attr_type2): Declare.
        (CPU_UNITS_QUERY): Define.

        * config/m68k/cf.md: New file.
        * config/m68k/m68.md (cf.md): New include.

2007-11-06  Tom Tromey  <tromey@redhat.com>

        PR c++/32256, PR c++/32368:
        * function.c (saved_in_system_header): New global.
        (push_cfun): Save in_system_header.
        (pop_cfun): Restore in_system_header.
        (push_struct_function): Save in_system_header.

2007-11-06  Douglas Gregor  <doug.gregor@gmail.com>

        PR c++/33977
        PR c++/33886
        * c-common.c (c_build_qualified_type): Moved to c-typeck.c.
        (complete_array_type): Set canonical type appropriately.
        * c-typeck.c (c_build_qualified_type): Moved from c-common.c. The
        C and C++ front ends now have different versions of this function,
        because the C++ version needs to maintain canonical types here.

2007-11-04  Razya Ladelsky  <razya@il.ibm.com>
        
        * tree-parloops.c (reduction_info): Remove reduction_init field.
        (initialize_reductions): Remove creation of the reduction_init variable.
        (struct data_arg): Remove.
        (add_field_for_reduction, create_stores_for_reduction): New functions.
        (add_field_for_name): Remove reduction handling.
        (separate_decls_in_loop): Call add_field_for_reduction,
        create_stores_for_reduction.

2007-11-06  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/33458
        * tree-inline.c (copy_phis_for_bb): If PHI arg substitution creates
        !is_gimple_val PHI argument, gimplify it and insert it on edge.

        PR tree-optimization/33993
        * tree-vect-transform.c (vect_get_constant_vectors): Use build_vector
        rather than build_constructor_from_list if all list values are
        constants.
        (get_initial_def_for_induction): Use build_vector instead of
        build_constructor_from_list.

2007-11-05  Mark Mitchell  <mark@codesourcery.com>

        PR target/33579
        * tree.h (DECL_INIT_PRIORITY): Do not require DECL_HAS_INIT_PRIORITY_P.
        (DECL_FINI_PRIORITY): Likewise.
        * tree.c (decl_init_priority_lookup): Remove assert.
        (decl_fini_priority_insert): Likewise.
        * cgraphunit.c (static_ctors): Make it a VEC.
        (static_dtors): Likewise.
        (record_cdtor_fn): Adjust accordingly.
        (build_cdtor): Generate multiple functions for each initialization
        priority.
        (compare_ctor): New function.
        (compare_dtor): Likewise.
        (cgraph_build_cdtor_fns): Sort the functions by priority before
        calling build_cdtor.
        (cgraph_build_static_cdtor): Put the priority in the function's name.

2007-11-05  H.J. Lu  <hongjiu.lu@intel.com>

        PR driver/32632
        * common.opt: Add shared and pie.

2007-11-05  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (xtensa_expand_nonlocal_goto): Do not
        replace references to virtual_stack_vars_rtx in goto_handler.

2007-11-05  Paul Brook  <paul@codesourcery.com>

        * config.gcc (arm*-*-*): Set c_target_objs and cxx_target_objs.
        * config/arm/arm.c (arm_lang_output_object_attributes_hook): New.
        (arm_file_start): Don't set Tag_ABI_PCS_wchar_t.  Call
        arm_lang_output_object_attributes_hook.
        * config/arm/arm.h (arm_lang_output_object_attributes_hook): Declare.
        (REGISTER_TARGET_PRAGMAS): Call arm_lang_object_attributes_init.
        * config/arm/arm-protos.h (arm_lang_object_attributes_init): Add
        prototype.
        * config/arm/t-arm.c (arm.o): New rule.
        * config/arm/arm-c.c: New file.

2007-11-05  Nick Clifton  <nickc@redhat.com>
            Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/32540
        PR tree-optimization/33922
        * doc/invoke.texi: Document PARAM_MAX_PARTIAL_ANTIC_LENGTH.
        * tree-ssa-pre.c: Include params.h.
        (compute_partial_antic_aux): Use PARAM_MAX_PARTIAL_ANTIC_LENGTH
        to limit the maximum length of the PA set for a given block.
        * Makefile.in: Add a dependency upon params.h for tree-ssa-pre.c
        * params.def (PARAM_MAX_PARTIAL_ANTIC_LENGTH): New parameter.

2007-11-05  Nathan Sidwell  <nathan@codesourcery.com>

        * libgcc2.c (__fixunstfDI, __fixunsxfDI, __fixunsdfDI,
        __fixunssfDI): Make return type unsigned.
        * libgcc2.h (__fixunstfDI, __fixunsxfDI, __fixunsdfDI,
        __fixunssfDI): Make return type unsigned.

2007-11-05  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/33856
        * tree-data-ref.c (get_references_in_stmt): Don't add
        REFERENCE_CLASS_P trees to references vector if get_base_address
        returns NULL on them.

2007-11-05  Alexandre Oliva  <aoliva@redhat.com>

        * cfg.c (dump_cfg_bb_info): Update bb_bitnames to match enum.

2007-11-04  Andrew Pinski  <pinskia@gmail.com>

        PR middle-end/32931
        * fold-const.c (fold_binary <case EQ_EXPR>): Convert the inner type
        for TRUTH_NOT_EXPR to type.

2007-11-04  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/contrib.texi (Contributors): Add Manuel Lopez-Ibanez.

2007-11-04  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR fortran/10220
        * dwarf2out.c (add_calling_convention_attribute): Change
        second argument. Set calling convention to DW_CC_program for
        Fortran main program.
        (gen_subprogram_die): Adjust to new prototype for
        add_calling_convention_attribute.

2007-11-03  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/33987
        * tree-vect-transform.c (get_initial_def_for_reduction): Fix assert.
        Fix indentation.
        (vectorizable_reduction): Add type check.

2007-11-03  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/29062
        * c-parser.c (c_parser_statement_after_labels): Error if a
        declaration is parsed after a label.
        
2007-11-03  Daniel Jacobowitz  <dan@codesourcery.com>

        PR debug/33921
        * reorg.c (emit_delay_sequence): Do not clear the locator on
        the jump instruction.

2007-11-03  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/33670
        * haifa-sched.c (ok_for_early_queue_removal): Don't walk out of the
        current sched region.

2007-11-02  Jakub Jelinek  <jakub@redhat.com>

        * config/ia64/ia64.c (struct reg_write_state): Change into
        unsigned short bitfields rather than unsigned int, decrease
        first_pred to just 10 bits.
        (rws_insn): Change into a bitmap or if not ENABLE_CHECKING
        into two char array.
        (rws_insn_set, rws_insn_test): New functions.
        (in_safe_group_barrier): New variable.
        (rws_update): Remove first argument, always set rws_sum array.
        (rws_access_regno): Use rws_insn_set macro.  Only call rws_update
        or update rws_sum if !in_safe_group_barrier, adjust rws_update
        args.
        (rtx_needs_barrier): Use rws_insn_test macro.
        (safe_group_barrier_needed): Don't save/restore rws_sum array,
        instead set/clear in_safe_group_barrier flag.

2007-11-02  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (xtensa_expand_prologue): Put a
        REG_FRAME_RELATED_EXPR note on the last insn that sets up the stack
        pointer or frame pointer.
        * config/xtensa/xtensa.h (DWARF_UNWIND_INFO): Delete.
        (MUST_USE_SJLJ_EXCEPTIONS): Define.
        (DWARF2_UNWIND_INFO): Define.
        (INCOMING_RETURN_ADDR_RTX): Define.
        (DWARF_FRAME_RETURN_COLUMN): Define.

2007-11-02  Tom Tromey  <tromey@redhat.com>

        * varpool.c (dump_varpool): Use 'next', not 'next_needed' when
        traversing pool.

2007-11-02  Diego Novillo  <dnovillo@google.com>

        * langhooks.h (struct lang_hooks_for_callgraph): Remove third
        argument from function pointer ANALYZE_EXPR.  Update all users.
        * cgraph.c (debug_cgraph_node): New.
        (debug_cgraph): New.

2007-11-02  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/33648
        * cfgrtl.c (cfg_layout_split_edge): Initialize BB_PARTITION of
        the newly created basic block.

2007-11-01  Richard Guenther  <rguenther@suse.de>

        * ggc-page.c (extra_order_size_tab): Add bitmap_head size.

2007-11-01  Steven Bosscher  <stevenb.gcc@gmail.com>

        PR rtl-optimization/33828
        * gcse.c (compute_code_hoist_vbeinout): Fix order of computation
        of VBEIN and VBEOUT.

2007-11-01  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * optabs.c (prepare_cmp_insn): Merge a couple of conditional blocks.
        * sched-rgn.c (compute_trg_info): Zero 'el' local variable.
        * tree-if-conv.c (process_phi_nodes): Zero 'cond' local variable.

2007-11-01  Nathan Sidwell  <nathan@codesourcery.com>

        * gcc.c (getenv_spec_function): Escape the environment variable's
        value.

2007-11-01  Janis Johnson  <janis187@us.ibm.com>

        * doc/invoke.texi (Optimize Options): Under -fcse-follow-jumps,
        show that CSE means common subexpression elimination.  Change wording
        for -fsee and define LCM.  Remove capitalization of optimizations
        for -ftree-reassoc, -ftree-pre, and -ftree-fre.

2007-11-01  Janis Johnson  <janis187@us.ibm.com>

        PR testsuite/25352
        * doc/sourcebuild.texi (Test Directives): Document that xfail
        has no effect for dg-do except when dg-do-what is "run".

2007-11-01  Tom Tromey  <tromey@redhat.com>

        * c-decl.c (grokdeclarator): Set decl source locations.
        * c-parser.c (c_parser_enum_specifier): Set location.
        (c_parser_struct_or_union_specifier): Likewise.

2007-11-01  Tom Tromey  <tromey@redhat.com>

        * print-tree.c (print_node): Print column number.

2007-11-01  Jakub Jelinek  <jakub@redhat.com>

        PR debug/33537
        * dwarf2out.c (gen_formal_parameter_die, gen_variable_die,
        gen_decl_die): Use TREE_TYPE (TREE_TYPE (decl)) as type
        rather than TREE_TYPE (decl) if DECL_BY_REFERENCE (decl).

        PR rtl-optimization/33673
        * gcse.c (cprop_jump): If a conditional jump has been optimized
        into unconditional jump, make the remaining normal edge fallthru
        and delete the jump insn.

2007-11-01  Ben Elliston  <bje@au.ibm.com>

        * emit-rtl.c (set_reg_attrs_from_mem): Clarify function comment.
        (set_mem_attrs_from_reg): Likewise.

2007-11-01  Michael Matz  <matz@suse.de>

        PR tree-optimization/33961
        * tree-ssa-phiopt.c (struct name_to_bb.store): New member.
        (name_to_bb_hash, name_to_bb_eq): Consider and check it.
        (add_or_mark_expr): New argument 'store', using it to search
        the hash table.
        (nt_init_block): Adjust calls to add_or_mark_expr.

2007-10-31  Jakub Jelinek  <jakub@redhat.com>

        PR target/31507
        * config/i386/i386.md (pushsf_rex64): Use X instead of < constraints
        for the first push_operand.

2007-10-31  Revital Eres  <eres@il.ibm.com>

        * config/rs6000/paired.md (sminv2sf3, smaxv2sf3, reduc_smax_v2sf,
        reduc_smin_v2sf vec_interleave_highv2sf, vec_interleave_lowv2sf,
        vec_extract_evenv2sf, vec_extract_oddv2sf, reduc_splus_v2sf,
        movmisalignv2sf, vcondv2sf): New.
        (UNSPEC_INTERHI_V2SF, UNSPEC_INTERLO_V2SF, UNSPEC_EXTEVEN_V2SF,
        UNSPEC_EXTODD_V2SF): Define new constants.
        * config/rs6000/rs6000-protos.h (paired_expand_vector_move,
        paired_emit_vector_cond_expr): New.
        * config/rs6000/rs6000-c.c (__PAIRED__): Add new builtin_define.
        * config/rs6000/rs6000.c (paired_expand_vector_move,
        paired_emit_vector_cond_expr, paired_emit_vector_compare):
        New functions.
        * config/rs6000/750cl.h (ASM_CPU_SPEC): Pass down -m750cl option.

2007-10-31  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/32377
        * tree-data-ref.c (compute_overlap_steps_for_affine_univar): Make it
        work also for unknown number of iterations.
        (analyze_subscript_affine_affine): Clean up.  Don't fail when the 
        number of iterations is not known.

2007-10-31  Richard Guenther  <rguenther@suse.de>

        PR middle-end/33779
        * fold-const.c (extract_muldiv_1): Make sure to not introduce
        new undefined integer overflow.
        (fold_binary): Avoid useless conversion.

2007-10-31  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR target/33948
        * config/mips/mips.c (mips_fpr_return_fields): Fix SCALAR_TYPE_P check.

2007-10-31  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/rs6000/rs6000.opt: Rename -mdfp option to -mhard-dfp.

        * config/s390/s390.c: (override_options): Replace -mhard-dfp/-msoft-dfp
        with -mhard-dfp/-mno-hard-dfp.
        * config/s390/s390.opt: Likewise.
        * config/s390/s390.h: Add MASK_HARD_DFP to the TARGET_DEFAULT
        definition.

2007-10-30  Janis Johnson  <janis187@us.ibm.com>

        * tree-ssa.c (execute_update_addresses_taken): Initialize update_vops.

2007-10-30  Janis Johnson  <janis187@us.ibm.com>

        * doc/invoke.texi (Option Summary): Add -fdce and -fdse to list of
        optimization options.
        (Optimize Options): Add -fdce and -fdse to the list of optimizations
        enabled by -O.  Document -fdce and -fdse.

2007-10-30  Jakub Jelinek  <jakub@redhat.com>

        PR c++/33709
        * fold-const.c (fold_binary): If one argument is COMPOUND_EXPR,
        convert second operand of COMPOUND_EXPR to the original type of
        that argument.

2007-10-30  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-operands.c (add_vars_for_offset): Fix exit test
        of loop adding SFTs as virtual operands.

2007-10-30  Richard Guenther  <rguenther@suse.de>

        * Makefile.in (dse.o): Add $(OPTABS_H) and $(RECOG_H) dependencies.

2007-10-29  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/32893
        * tree-vectorize.c (vect_can_force_dr_alignment_p): Check
        STACK_BOUNDARY instead of PREFERRED_STACK_BOUNDARY.

2007-10-29  Rask Ingemann Lambertsen  <rask@sygehus.dk>

        * longlong.h (add_ssaaaa): Support Intel asm syntax in i386 and
        x86_64 versions.
        (sub_ddmmss): Likewise.
        (umul_ppmm): Likewise.
        (udiv_qrnnd): Likewise.

2007-10-29  Janis Johnson  <janis187@us.ibm.com>

        PR testsuite/24841
        * doc/sourcebuild.texi (Test Directives): Document that dg-require
        directives must come before dg-additional-sources.

2007-10-29  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/33723
        * c-gimplify.c (c_gimplify_expr): Optimize INIT_EXPR or
        MODIFY_EXPR with non-addressable COMPOUND_LITERAL_EXPR as source.

2007-10-29  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR tree-optimization/33614
        * gimplify.c (gimplify_init_constructor): Gimplify vector constructors
        if they can't be reduced to VECTOR_CSTs and aren't legitimate
        initializer constants.

2007-10-29  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/33870
        * tree-ssa-operands.c (add_vars_for_offset): Remove mpt_vars parameter.
        (add_virtual_operand): Do not recurse into MPTs looking for pointed-to
        SFTs.

2007-10-29  Richard Guenther  <rguenther@suse.de>

        * passes.c (init_optimization_passes): Exchange store_copy_prop
        with copy_prop.
        * tree-pass.h (pass_store_copy_prop): Remove.
        * tree-ssa-copy.c (do_store_copy_prop): Remove.
        (stmt_may_generate-copy): Do not handle store_copy_prop.
        (get_copy_of_val): Likewise.
        (set_copy_of_val): Likewise.
        (copy_prop_visit_assignment): Likewise.
        (copy_prop_visit_stmt): Likewise.
        (copy_prop_visit_phi_node): Likewise.
        (init_copy_prop): Likewise.
        (execute_copy_prop): Likewise.
        (do_copy_prop): Remove.
        (gate_store_copy_prop): Likewise.
        (store_copy_prop): Likewise.
        (pass_store_copy_prop): Likewise.
        (pass_copy_prop): Call execute_copy_prop.
        * opts.c (decode_options): Do not set flag_tree_store_copy_prop.
        * common.opt (ftree-store-copy-prop): Mark obsolete.
        * doc/invoke.texi (ftree-store-copy-prop): Remove documentation.

2007-10-29  Ian Lance Taylor  <iant@google.com>

        * ifcvt.c (noce_can_store_speculate_p): New static function.
        (noce_process_if_block): Call it.
        (if_convert): Remove recompute_dominance parameter.  Change all
        callers.

2007-10-29  Richard Guenther  <rguenther@suse.de>

        * tree-flow-inline.h (get_subvar_at): Use binary search.
        (get_first_overlapping_subvar): New function to binary search
        for the first overlapping subvar.
        * tree-ssa-operands.c (add_vars_for_offset): Strip down to
        just handle adding subvars for a pointed-to subvar.  Optimize
        and use get_first_overlapping_subvar.
        (add_vars_for_bitmap): Fold into single caller.
        (add_virtual_operand): Streamline, inherit add_vars_for_bitmap
        and non pointed-to bits of add_vars_for_offset.

2007-10-29  Revital Eres  <eres@il.ibm.com> 

        * modulo-sched.c (sms_schedule): Add DF_UD_CHAIN problem.

2007-10-29  Razya Ladelsky  <razya@il.ibm.com>
            Zdenek Dvorak  <ook@ucw.cz>

        OMP_ATOMIC Changes,
        reduction support for automatic parallelization.

        * expr.c (expand_expr_real_1): Add cases for OMP_ATOMIC_LOAD,
        OMP_ATOMIC_STORE.
        * Makefile.in: Add dependencies to expr.o, tree-parloops.o, omp-low.o
        * tree-pretty-print.c (dump_generic_node): Add OMP_ATOMIC_LOAD
        and OMP_ATOMIC_STORE.
        * tree.h (OMP_DIRECTIVE_P): Add OMP_ATOMIC_LOAD, OMP_ATOMIC_STORE.
        * gimple-low.c (lower_stmt): Same.
        * gimplify.c (gimplify_expr): Same.
        (gimplify_omp_atomic_fetch_op, gimplify_omp_atomic_pipeline,
        gimplify_omp_atomic_mutex): Remove.
        (gimplify_omp_atomic): Change it to simply gimplify the
        statement instead of expanding it.
        * omp-low.c: Add includes to optabs.h, cfgloop.h.
        (expand_omp_atomic, expand_omp_atomic_pipeline,
        goa_stabilize_expr, expand_omp_atomic_mutex,
        expand_omp_atomic_fetch_op): New functions to implement
        expansion of OMP_ATOMIC.
        (expand_omp, build_omp_regions_1): Add support for
        OMP_ATOMIC_LOAD/OMP_ATOMIC_STORE.
        * tree-cfg.c (make_edges): add case for OMP_ATOMIC_LOAD,
        OMP_ATOMIC_STORE.
        * tree-gimple.c (is_gimple_stmt): Add OMP_ATOMIC_LOAD,
        OMP_ATOMIC_STORE.
        * tree-parloops.c: add include to tree-vectorizer.h.
        (reduction_info): New structure for reduction.
        (reduction_list): New list to represent list of reductions per loop.
        (struct data_arg): New helper structure for reduction.
        (reduction_info_hash, reduction_info_eq, reduction_phi,
        initialize_reductions, create_call_for_reduction,
        create_phi_for_local_result, create_call_for_reduction_1,
        create_loads_for_reductions, create_final_loads_for_reduction):
        New functions.
        (loop_parallel_p): Identify reductions, add reduction_list parameter.
        (separate_decls_in_loop_name): Support reduction variables.
        (separate_decls_in_loop): Add reduction_list and ld_st_data arguments,
        call create_loads_for_reduction for each reduction.
        (canonicalize_loop_ivs): Identify reductions, add reduction_list
        parameter.
        (transform_to_exit_first_loop): Add reduction support, add
        reduction_list parameter.
        (gen_parallel_loop): Add reduction_list parameter.  Add call
        separate_decls_in_loop with
        the new argument.  Traverse reductions and call
        initialize_reductions, create_call_for_reduction.
        (parallelize_loops): Create and delete the reduction list.
        (add_field_for_name): Change use of data parameter.  Add fields for
        reductions.
        * tree-vectorizer.h (vect_analyze_loop_form): Add declaration.
        * tree-vect-analyze.c (vect_analyze_loop_form): export it.
        * tree.def: Add definitions for OMP_ATOMIC_LOAD, OMP_ATOMIC_STORE.
        * tree-inline.c (estimate_num_insns_1): add cases for
        OMP_ATOMIC_LOAD, OMP_ATOMIC_STORE.
        * tree-cfg.c (make_edges): Add OMP_ATOMIC_LOAD, OMP_ATOMIC_STORE.
        * tree-ssa-operands.c (get_addr_dereference_operands):
        New function.  Subroutine of get_indirect_ref_operands.
        (get_indirect_ref_operands): Call get_addr_dereference_operands.
        (get_expr_operands): Support OMP_ATOMIC_LOAD, OMP_ATOMIC_STORE.


2007-10-29  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.c: Include df.h.
        (cris_address_cost): Add gcc_assert for canonicalization
        assumptions.  For PLUS with MULT or register, correct
        test for register in other arm.  Tweak comments.

2007-10-28  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-operands.c (add_vars_for_offset): Add parameter
        telling if the var is to be treated as points-to location.
        (add_vars_for_bitmap): Pass true to add_vars_for_offset.
        (add_virtual_operand): Only recurse into MPTs if aliases
        is from a NMT.

2007-10-28  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-operands.c (add_vars_for_offset): Clean and speed up.
        (add_vars_for_bitmap): Do not recurse further.  Only add vars
        for pointed-to SFTs.
        (add_virtual_operand): Re-instantiate loop to add operands for
        aliases.  Recurse into MPTs.
        (get_indirect_ref_operands): If we fall back to use a pointers
        SMT, make sure to not prune based on the access offset and size.

2007-10-28  Andrew Pinski  <pinskia@gmail.com>

        PR tree-opt/33589
        * tree-outof-ssa.c (rewrite_trees): If the statement changed, cleanup
        the eh information on the statement.

2007-10-28  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (subvar_t): Make it a VEC.
        (struct subvar): Remove.
        (struct var_ann_d): Use VEC(tree,gc) to store subvars.
        * tree-flow-inline.h (get_subvar_at): Adjust iterators over
        variable subvars.
        * tree-into-ssa.c (mark_sym_for_renaming): Likewise.
        * tree-nrv.c (dest_safe_for_nrv_p): Likewise.
        * tree-ssa-alias.c (mark_aliases_call_clobbered): Likewise.
        (set_initial_properties): Likewise.
        (setup_pointers_and_addressables): Likewise.
        (new_type_alias): Likewise.
        (create_overlap_variables_for): Likewise.
        * tree-dfa.c (dump_subvars_for): Likewise.
        * tree-ssa-operands.c (add_vars_for_offset): Likewise.
        (get_expr_operands): Likewise.
        (add_to_addressable_set): Likewise.
        * tree-ssa-structalias.c (set_uids_in_ptset): Likewise.

2007-10-28  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/33920
        * tree-if-conv.c (tree_if_conversion): Force predicate of single
        successor bb to true when predecessor bb has NULL predicate.
        (find_phi_replacement_condition): Assert that tmp_cond is non-null.

2007-10-28  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.md: Add combiner patterns for DImode extensions
        of HImode and QImode truncations.  Reformat HImode <- QImode pattern
        for consistency.

2007-10-28  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR target/33895
        * config/mips/mips.c (mips_output_dwarf_dtprel): Add ATTRIBUTE_UNUSED.

2007-10-28  Andreas Krebbel  <krebbel1@de.ibm.com>

        * dce.c (delete_unmarked_insns): Just delete the RETVAL and
        LIBCALL notes if they are about to be moved to the same insn.

2007-10-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/33870
        * tree-ssa-operands.c (add_vars_for_offset): Reduce code
        duplication.  Remove redundant call to access_can_touch_variable.
        (add_vars_for_bitmap): New helper for recursing over MPT contents.
        (add_virtual_operand): Use it.

2007-10-26  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR fortran/31608
        * pa.h (ASM_PN_FORMAT): Delete define.

2007-10-26  Janis Johnson  <janis187@us.ibm.com>

        * doc/invoke.texi (Option Summary, optimizations): Remove
        -fbounds-check.  Add -fassociative-math, -freciprocal-math,
        -ftree-vrp and -funit-at-a-time.  Change -fno-split-wide-types to
        -fsplit-wide-types to match later entry.  Break up a long line.
        (Option Summary, code gen options)  Add -fno-stack-limit.  Add
        missing @gol to the end of a line.
        (Optimization Options): Remove -fbounds-check, which is also
        documented under Code Generation Options.  Remove =n from
        index entry for -ftree-parallelize-loops.  Change -fno-cprop-registers
        to -fcprop-registers to match other options, and say when it is
        enabled rather than disabled.  Remove extra index entry for
        -fno-cx-limited-range.  Add index entries for -fstack-protector
        and -fstack-protector-all.
        (Code Gen Options): Add index entry for -ftls-model.

2007-10-26  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_OS_task_function_p): Add new function.
        (avr_regs_to_save): Handle functions with 'OS_task' attribute.
        (avr_simple_epilogue, expand_prologue, avr_asm_function_end_prologue,
        expand_epilogue, output_movhi): Don't handle 'main' function.
        (avr_attribute_table): Add 'OS_task' function attribute.
        * config/avr/avr.h (machine_function): Remove 'is_main' field, add
        'is_OS_task' field.
        * config/avr/avr.md (return_from_main_epilogue): Remove insn.
        (return_from_epilogue, return_from_interrupt_epilogue): Don't handle
        'main' function.
        * config/avr/avr.opt (minit-stack): Remove.

2007-10-26  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-nested.c (get_trampoline_type): Fix thinko.

2007-10-26  Douglas Gregor  <doug.gregor@gmail.com>

        PR c++/33601
        * tree.c (build_offset_type): Build canonical type based on the
        TYPE_MAIN_VARIANT of the base type.

2007-10-26  Daniel Jacobowitz  <dan@codesourcery.com>

        * reorg.c (emit_delay_sequence): Move insn locator from the
        first insn to the sequence.

2007-10-26  Samuel Tardieu  <sam@rfc1149.net>

        * ipa-pure-const.c (check_decl): Return immediately when
        pure_const_state has been set to IPA_NEITHER.

2007-10-25  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/33833
        * tree-vect-analyze.c (vect_analyze_data_refs): Use POINTER_PLUS_EXPR
        and convert init to sizetype in inner_base construction.

2007-10-25  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (mem_sym_stats): Remove.
        (dump_mem_sym_stats_for_var): Declare.
        * tree-dfa.c (dump_variable): Call dump_mem_sym_stats_for_var.
        (mem_sym_stats): Move ...
        * tree-ssa-alias.c (mem_sym_stats): ... here and make it static.
        (mem_sym_score): Rename from ...
        (pscore): ... this.  Remove.
        (dump_mem_sym_stats_for_var): New function.  Dump the score, but
        not the frequencies.
        (compare_mp_info_entries): Make sort stable by disambiguating
        on DECL_UID.

2007-10-25  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/33866
        * tree-vect-transform.c (vectorizable_store): Check operands of all
        the stmts in the group of strided accesses. Get def stmt type for each
        store in the group and pass it to vect_get_vec_def_for_stmt_copy ().

2007-10-25  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/constraints.md (Y0): Rename register constraint to Yz.
        (Yt): Rename register constraint to Y2.
        * config/i386/sse.md: Use renamed register constraints.
        * config/i386/mmx.md: Ditto.
        * config/i386/i386.md: Ditto.

2007-10-25  Rask Ingemann Lambertsen  <rask@sygehus.dk>

        * config/i386/i386.md (*dummy_extendsfdf2): Fix operand 1 constraint.

2007-10-24  Chao-ying Fu  <fu@mips.com>

        * dwarf2out.c (base_type_die): Use DW_ATE_unsigned_fixed or
        DW_ATE_signed_fixed to describe FIXED_POINT_TYPE.

2007-10-24  Samuel Tardieu  <sam@rfc1149.net>
            Olga Golovanevsky <olga@il.ibm.com>
        
        * ipa-struct-reorg.c (replace_field_acc): Make it clear to
        the compiler that wr.wrap and wr.domain are initialized in
        any case.

2007-10-24  Samuel Tardieu  <sam@rfc1149.net>

        * ipa-struct-reorg.c (sum_counts): Use HOST_WIDEST_PRINT_DEC
        to print gcov_type values.

2007-10-24  Eric B. Weddington  <eweddington@cso.atmel.com>

        * config/avr/avr.h: Do not include progmem_section definition when
        building with IN_TARGET_LIBS.

2007-10-24  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR target/33755
        * config/mips/mips.c (mips_lo_sum_offset): New structure.
        (mips_hash_base, mips_lo_sum_offset_hash, mips_lo_sum_offset_eq)
        (mips_lo_sum_offset_lookup, mips_record_lo_sum)
        (mips_orphaned_high_part_p: New functions.
        (mips_avoid_hazard): Don't check INSN_P here.
        (mips_avoid_hazards): Rename to...
        (mips_reorg_process_insns): ...this.  Cope with
        !TARGET_EXPLICIT_RELOCS.  Delete orphaned high-part relocations,
        or turn them into nops.
        (mips_reorg): Remove TARGET_EXPLICIT_RELOCS check from calls to
        dbr_schedule and mips_avoid_hazards/mips_reorg_process_insns.
        (mips_set_mips16_mode): Don't set flag_delayed_branch here.
        (mips_override_options): Set flag_delayed_branch to 0.

2007-10-24  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.h (MOVE_MAX): Use UNITS_PER_WORD and describe
        MIPS-specific implementation details.
        (MIPS_MAX_MOVE_BYTES_PER_LOOP_ITER): New macro.
        (MIPS_MAX_MOVE_BYTES_STRAIGHT): Likewise.
        (MOVE_RATIO): Define to MIPS_MAX_MOVE_BYTES_STRAIGHT / UNITS_PER_WORD
        for targets with movmemsi.
        (MOVE_BY_PIECES_P): Define.
        * config/mips/mips.c (MAX_MOVE_REGS, MAX_MOVE_BYTES): Delete.
        (mips_block_move_loop): Add a bytes_per_iter argument.
        (mips_expand_block_move): Use MIPS_MAX_MOVE_BYTES_STRAIGHT.
        Update call to mips_block_move_loop.

2007-10-24  Michael Matz  <matz@suse.de>

        PR debug/33868
        * var-tracking.c (variable_union): Don't break after one loop
        iteration but only when a difference is found.
        (dump_variable): Also print DECL_UID.

2007-10-24  Olga Golovanevsky  <olga@il.ibm.com>

        * ipa-type-escape.h: Expose function
        is_array_access_through_pointer_and_index.
        * ipa-type-escape.c
        (is_array_access_through_pointer_and_index):
        Add three new parameters. Add support of
        POINTER_PLUS_EXPR tree code.

2007-10-24  Olga Golovanevsky  <olga@il.ibm.com>

        * ipa-struct-reorg.c, ipa-struct-reorg.h: New files.
        * tree-pass.h: Add pass_ipa_struct_reorg.
        * common.opt: Add ipa-struct-reorg flag.
        * Makefile.in: Add ipa-strcut-reorg.o compilation.
        * passes.c: Add pass pass_ipa_struct_reorg.
        * params.h:  Add STRUCT_REORG_COLD_STRUCT_RATIO.
        * params.def: Add PARAM_STRUCT_REORG_COLD_STRUCT_RATIO.

2007-10-24  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/33804
        * tree-vect-transform.c (vectorizable_operation): Remove the
        checks that the vectorization is worthwhile from the transformation
        phase.

2007-10-24  Ira Rosen  <irar@il.ibm.com>

        * tree-vect-analyze.c (vect_build_slp_tree): Return false if
        vectype cannot be determined for the scalar type.
        (vect_analyze_slp_instance): Likewise.
        * tree-vect-transform.c (vect_model_reduction_cost): Change the
        return type to bool. Return false if vectype cannot be determined 
        for the scalar type.
        (vect_get_constant_vectors): Return false if vectype cannot be
        determined for the scalar type.
        (get_initial_def_for_induction, vect_get_vec_def_for_operand,
        get_initial_def_for_reduction, vect_create_epilog_for_reduction,
        vectorizable_reduction): Likewise.      

2007-10-23  Craig Rodrigues  <rodrigc@gcc.gnu.org>

        * config.gcc: For a FreeBSD target, parse the value of ${target}
        to determine the value of FBSD_MAJOR, instead of adding an
        explicit check for every possible FreeBSD major version.

2007-10-23  Uros Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/33846
        * combine.c (simplify_shift_const_1) [NOT]: Skip vector modes.

2007-10-23  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/33860
        * tree-vect-transform.c (vect_analyze_data_ref_access): Don't allow
        interleaved accesses in case the dr is inside the inner-loop during
        outer-loop vectorization.

2007-10-23  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * doc/rtl.texi (Flags): Fix MEM_SCALAR_P entry.
        Document MEM_POINTER.  Replace mentions of "integrated"
        field with "return_val".  Delete outdated stuff.

2007-10-23  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_override_options): Set
        rs6000_altivec_abi on AIX.
        (conditional_register_usage): Set VR20:31 fixed on AIX.

2007-10-23  Richard Guenther  <rguenther@suse.de>

        * alias.c (get_alias_set): For INDIRECT_REFs, deal with
        SSA_NAME pointers.

2007-10-22  Seongbae Park <seongbae.park@gmail.com>
        David S. Miller  <davem@davemloft.net>

        * df-scan.c (df_get_call_refs): Mark global registers as both a
        DF_REF_REG_USE and a non-clobber DF_REF_REG_DEF.

2007-10-22  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/33834
        PR tree-optimization/33835
        * tree-vect-analyze.c (vect_analyze_operations): RELEVANT and LIVE
        stmts need to be checked for success seperately.
        * tree-vect-transform.c (vectorizable_call, vectorizable_conversion):
        Remove the check that stmt is not LIVE.
        (vectorizable_assignment, vectorizable_induction): Likewise.
        (vectorizable_operation, vectorizable_type_demotion): Likewise.
        (vectorizable_type_promotion, vectorizable_load, vectorizable_store):
        Likewise.
        (vectorizable_live_operation): Check that op is not NULL. 

2007-10-22  Janis Johnson  <janis187@us.ibm.com>

        * doc/invoke.texi (Optimization Options): In the summary, show
        that the value for options -falign-jumps, -falign-labels,
        -falign-loops, -falign-functions, -fsched-stalled-insns, and
        -fsched-stalled-insns-dep is optional.  In the summary, show that
        -fsched-stalled-insns takes an optional argument and that
        -fparallelize-loops takes an argument.  Add opindex for several
        optimization options, and fix typos in the opindex commands for
        several others.  In the descriptions for -fsched-stalled-insns
        and -fsched-stalled-insns-dep, show the options with and without
        values.

2007-10-22  Eric B. Weddington  <eweddington@cso.atmel.com>

        * config/avr/avr.c (avr_mcu_types): Remove ATmega603 which was never
        produced.
        * config/avr/avr.h (LINK_SPEC): Likewise.
        (CRT_BINUTILS_SPECS): Likewsie.
        * config/avr/t-avr (MULTILIB_MATCHES): Likewise.

2007-10-22  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/33644
        * cfgcleanup.c: Do not include dce.h.
        * cfgrtl.c (delete_insn_chain_and_edges): Resurrect.
        * combine.c (distribute_notes): Delete REG_LIBCALL_ID case.
        * dce.c (something_changed): Delete.
        (libcall_dead_p): New predicate.
        (delete_unmarked_insns): Use it to delete dead libcalls.
        Deal with REG_LIBCALL and REG_RETVAL notes.
        (prescan_libcall_for_dce): New function.
        (prescan_insns_for_dce): Use it to deal with libcalls.
        (mark_reg_dependencies): Do nothing special for libcalls.
        (dce_process_block): Likewise.
        (fast_dce): Delete unused local variable.
        (run_fast_dce): Do not return a value.
        * dce.h (struct df): Delete.
        (run_fast_dce): Adjust prototype.
        * optabs.c (libcall_id): Delete.
        (maybe_encapsulate_block): Do not emit REG_LIBCALL_ID notes.
        (emit_no_conflict_block): Do not look for REG_LIBCALL_ID notes.
        * reload1.c (reload): Delete REG_LIBCALL_ID case.
        * rtl.h (delete_insn_chain_and_edges): Resurrect prototype.
        * see.c (see_update_relevancy): Look for REG_LIBCALL and REG_RETVAL
        notes instead of REG_LIBCALL_ID notes.
        * reg-notes.def (LIBCALL_ID): Delete.
        * Makefile.in (see.o): Add dce.h dependency.
        (cfgcleanup.o): Remove dce.h dependency.

2007-10-22  Michael Matz  <matz@suse.de>

        PR tree-optimization/33855
        * tree-ssa-phiopt.c (cond_store_replacement): Handle COMPLEX_TYPE
        and VECTOR_TYPE.

2007-10-22  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/33854
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Add
        FLOAT_EXPR to the list of promotion operations. 

2007-10-22  Rask Ingemann Lambertsen  <rask@sygehus.dk>

        PR target/29473
        PR target/29493
        * config/i386/i386.c (output_pic_addr_const): Support Intel asm syntax.
        (print_reg): Print register prefix only with AT&T asm syntax. 
        Support pc_rtx for RIP register.
        (print_operand_address): Use print_reg()'s pc_rtx support for RIP
        relative addressing.  Always print segment register prefix with AT&T
        asm syntax and never with Intel asm syntax.
        (print_operand): Suppress 'XXX PTR' prefix for BLKmode operands. 
        Fix prefix for 16-byte XFmode operands.
        (output_addr_const_extra): Support Intel asm syntax.
        (x86_file_start): Don't use register prefix with Intel asm syntax.
        * config/i386/i386.md ("*zero_extendqihi2_movzbl"): Fix typo.
        ("return_internal_long"): Fix Intel asm syntax output.
        ("set_got_rex64"): Support Intel asm syntax.
        ("set_rip_rex64"): Likewise.
        ("set_got_offset_rex64"): Likewise.
        ("*sibcall_1_rex64_v"): Print register prefix only with AT&T asm
        syntax.
        ("*tls_global_dynamic_64"): Likewise.
        ("*tls_local_dynamic_base_64"): Likewise.
        ("*load_tp_si")("*load_tp_di"): Likewise.
        ("*add_tp_si")("*add_tp_di"): Likewise.
        ("*tls_dynamic_lea_64"): Likewise.
        ("*sibcall_value_1_rex64_v"): Likewise.
        ("stack_tls_protect_set_si"): Likewise.
        ("stack_tls_protect_set_di"): Likewise.
        ("stack_tls_protect_test_si"): Likewise.
        ("stack_tls_protect_test_di"): Likewise.
        * config/i386/mmx.md ("*mov<mode>_internal_rex64"): Fix Intel asm
        syntax output.
        ("*movv2sf_internal_rex64"): Likewise.
        * config/i386/cpuid.h (__cpuid): Support Intel asm syntax.
        (__get_cpuid_max): Likewise.

2007-10-21  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips-protos.h (mips_regno_mode_ok_for_base_p): Give
        the STRICT_P argument type "bool" rather than "int".
        (mips_legitimate_address_p): Likewise.
        (fp_register_operand, lo_operand): Delete.
        (mips_subword): Give the HIGH_P argument type "bool" rather than "int".
        (mips_emit_scc): Rename to...
        (mips_expand_scc): ...this.
        (gen_conditional_branch): Rename to...
        (mips_expand_conditional_branch): ...this.
        (gen_conditional_move): Rename to...
        (mips_expand_conditional_move): ...this.
        (mips_gen_conditional_trap): Rename to...
        (mips_expand_conditional_trap): ...this and take an rtx code instead
        of an operands array.
        (mips_expand_call): Give the SIBCALL_P argument type "bool"
        rather than "int".
        (mips_emit_fcc_reload): Rename to...
        (mips_expand_fcc_reload): ...this.
        (init_cumulative_args): Rename to...
        (mips_init_cumulative_args): ...this and remove the libname argument.
        (function_arg_advance): Rename to...
        (mips_function_arg_advance): ...this.
        (function_arg): Rename to...
        (mips_function_arg): ...this and use "rtx" instead of
        "struct rtx_def *".
        (function_arg_boundary): Rename to...
        (mips_function_arg_boundary): ...this.
        (mips_expand_unaligned_load): Rename to...
        (mips_expand_ext_as_unaligned_load): ...this and give the WIDTH
        and BITPOS arguments type "HOST_WIDE_INT".
        (mips_expand_unaligned_store): Rename to...
        (mips_expand_ins_as_unaligned_store): ...this and give the WIDTH
        and BITPOS arguments type "HOST_WIDE_INT".
        (override_options): Rename to...
        (mips_override_options): ...this.
        (print_operand): Rename to...
        (mips_print_operand): ...this.
        (print_operand_address): Rename to...
        (mips_print_operand_address): ...this.
        (mips_output_ascii): Remove the PREFIX argument.
        (mips_expand_epilogue): Give the SIBCALL_P argument type "bool"
        rather than "int".
        (mips_can_use_return_insn): Return a "bool" rather than an "int".
        (mips_function_value): Remove the FUNC argument.  Use "rtx" instead
        of "struct rtx_def *".
        (mips_secondary_reload_class): Give the IN_P argument type "bool"
        rather than "int".
        (build_mips16_call_stub): Delete.
        (mips_store_data_bypass_p): Return a "bool" rather than an "int".
        (mips_use_ins_ext_p): Give the second and third arguments type
        "HOST_WIDE_INT" rather than "rtx".
        * config/mips/mips.h: Update after the above changes.  Tweak comments
        and formatting.
        (SECONDARY_INPUT_RELOAD_CLASS): Pass a boolean IN_P argument.
        (SECONDARY_OUTPUT_RELOAD_CLASS): Likewise.
        (mips_print_operand_punct, mips_hard_regno_mode_ok): Change the
        element type from "char" to "bool".
        (mips_section_threshold, sym_lineno, set_noat, mips_branch_likely)
        (mips_cpu_info_table): Delete.
        * config/mips/mips.md: Update after the above changes.  Tweak some
        formatting.
        * config/mips/mips-ps-3d.md: Likewise.
        * config/mips/mips.c: Tweak comments and formatting.
        Use NULL-like macros rather than 0 in various places.
        (mips_section_threshold): Rename to...
        (mips_small_data_threshold): ...this and give it an unsigned type.
        (num_source_filenames): Remove explicit initialization.
        (sdb_label_count): Likewise.
        (sym_lineno): Delete.
        (set_noat): Make static.
        (mips_branch_likely): Likewise, and give it type "bool".
        (mips_isa_info): Rename to...
        (mips_isa_option_info): ...this.
        (mips_flag_delayed_branch): Rename to...
        (mips_base_delayed_branch): ...this.
        (mips_split_addresses): Delete.
        (mips_print_operand_punct, mips_hard_regno_mode_ok): Change the
        element type from "char" to "bool".
        (mips_regno_to_class): Add an explicit array size.
        (mips16_flipper): Change from type "int" to type "bool".
        (mips_comp_type_attributes): Remove redundant FUNCTION_TYPE check.
        (mips_tls_operand_p): Rename to...
        (mips_tls_symbol_p): ...this.
        (mips_global_symbol_p): Remove redundant "const".
        (mips_offset_within_alignment_p): Simplify.
        (mips_regno_mode_ok_for_base_p): Change the name of the last argument
        to STRICT_P and give it type bool.
        (mips_valid_base_register_p): Likewise.
        (mips_classify_address): Likewise.
        (mips_legitimate_address_p): Likewise.
        (mips16_unextended_reference_p): Take the offset as an
        "unsigned HOST_WIDE_INT" rather than an "rtx".  Simplify.
        (mips_const_insns): Use IN_RANGE.
        (mips_force_temporary): Remove an unnecessary copy_rtx.
        (mips16_gp_pseudo_reg): Simplify.
        (mips_split_symbol): Remove an unnecessary copy_rtx.
        (mips_legitimize_tls_address): Only create registers if we need them.
        (mips_legitimize_address): Use mips_split_plus.
        (mips_move_integer): Swap DEST and TEMP arguments.  Rename local
        variable COST to NUM_OPS.
        (mips_legitimize_move): Use gen_lowpart.
        (mips_rewrite_small_data): Rename the OP parameter to PATTERN.
        (m16_check_op): Use IN_RANGE.
        (mips_subword): Give the HIGH_P argument type "bool" rather than "int".
        (mips_split_doubleword_move): Pass booleans to mips_subword.
        (mips_output_move): Store the mode in a local variable.
        Explicitly assert that this function does not deal with
        MFLO and MFHI.  Use SMALL_OPERAND_UNSIGNED.  Make order of
        cases more consistent.
        (mips_relational_operand_ok_p): Rename to...
        (mips_int_order_operand_ok_p): ...this.
        (mips_canonicalize_comparison): Rename to...
        (mips_canonicalize_int_order_test): ...this.
        (mips_emit_int_relational): Rename to...
        (mips_emit_int_order_test): ...this.  Store the mode in a local
        variable.
        (mips_reverse_fp_cond_p): Rename to...
        (mips_reversed_fp_cond): ...this.
        (mips_emit_compare): Make the order of the statements more consistent.
        (mips_emit_scc): Rename to...
        (mips_expand_scc): ...this.
        (gen_conditional_branch): Rename to...
        (mips_expand_conditional_branch): ...this.
        (gen_conditional_move): Rename to...
        (mips_expand_conditional_move): ...this.  Build the condition
        separately from the main pattern.
        (mips_gen_conditional_trap): Rename to...
        (mips_expand_conditional_trap): ...this and take an rtx code instead
        of an operands array.  Simplify.
        (init_cumulative_args): Rename to...
        (mips_init_cumulative_args): ...this.  Use memset rather than a
        copy from a zeroed static.  Use prototype_p and stdarg_p.
        (mips_arg_info): Rename to...
        (mips_get_arg_info): ...this and put the INFO argument first.
        (function_arg): Rename to...
        (mips_function_arg): ...this and use "rtx" instead of
        "struct rtx_def *".  Only split structures into chunks if 
        TARGET_HARD_FLOAT, rather than checking !TARGET_SOFT_FLOAT on
        a chunk-by-chunk basis.  Use SCALAR_FLOAT_TYPE_P instead of a
        comparison with REAL_TYPE.  Rename local variable REG to REGNO
        and make it unsigned.
        (function_arg_advance): Rename to...
        (mips_function_arg_advance): ...this.
        (function_arg_boundary): Rename to...
        (mips_function_arg_boundary): ...this.
        (mips_pad_arg_upward): Use SCALAR_INT_MODE_P instead of a comparison
        with MODE_INT.
        (mips_fpr_return_fields): Use SCALAR_FLOAT_TYPE_P instead of a
        comparison with REAL_TYPE.
        (mips_function_value): Remove the FUNC argument.  Rename local
        variable UNSIGNEDP to UNSIGNED_P.
        (mips_return_in_memory): Use IN_RANGE.
        (mips_setup_incoming_varargs): Pass a boolean rather than an int
        to FUNCTION_ARG_ADVANCE.
        (mips_gimplify_va_arg_expr): Rename local variable INDIRECT
        to INDIRECT_P.  Remove a redundant mips_abi check.  Only calculate
        SIZE and RSIZE if needed.
        (mips16_stub): Rename FPRET to FP_RET_P and give it type "bool"
        rather than "int".
        (build_mips16_function_stub): Rename to...
        (mips16_build_function_stub): ...this.
        (build_mips16_call_stub): Rename to...
        (mips16_build_call_stub): ...this.  Make static, and return a
        "bool" rather than an "int".  Rename the ARG_SIZE argument to
        ARGS_SIZE.  Rename the local variable FPRET to FP_RET_P and give
        it type "bool".  Use "jr" rather than "j".  Use XNEW.  Simplify.
        (mips_load_call_address): Give the SIBCALL_P argument type "bool"
        rather than "int".
        (mips_expand_call): Likewise.  Assert that MIPS16 calls via stubs
        are not sibling ones.
        (mips_emit_fcc_reload): Rename to...
        (mips_expand_fcc_reload): ...this.
        (mips_get_unaligned_mem): Give the WIDTH and BITPOS arguments type
        "HOST_WIDE_INT".
        (mips_expand_unaligned_load): Rename to...
        (mips_expand_ext_as_unaligned_load): ...this and give the WIDTH
        and BITPOS arguments type "HOST_WIDE_INT".  Remove redundant
        SUBREG_BYTE check.
        (mips_expand_unaligned_store): Rename to...
        (mips_expand_ins_as_unaligned_store): ...this and give the WIDTH
        and BITPOS arguments type "HOST_WIDE_INT".
        (mips_use_ins_ext_p): Rename second and third arguments to WIDTH
        and BITPOS and give them type "HOST_WIDE_INT" rather than "rtx".
        Use IN_RANGE.
        (mips_init_split_addresses): Replace with...
        (mips_split_addresses_p): ...this new function.
        (mips_init_relocs): Check mips_split_addresses_p () rather than
        mips_split_addresses.  Always initialize mips_split_p with booleans.
        (print_operand_reloc): Rename to...
        (mips_print_operand_reloc): ...this.  Use a gcc_assert rather than
        a fatal_error.
        (print_operand): Rename to...
        (mips_print_operand): ...this.
        (print_operand_address): Rename to...
        (mips_print_operand_address): ...this.  Use GP_REG_FIRST.
        (mips_in_small_data_p): Simplify.
        (mips_output_ascii): Remove the PREFIX argument and "register"
        keywords.  Use the STRING parameter directly and cast to
        "unsigned char".
        (mips16e_collect_argument_save_p): Use IN_RANGE.
        (mips_function_has_gp_insn): Simplify.
        (mips_set_return_address): Use BITSET_P.
        (mips_restore_gp): Use a separate statement to pick the base
        register.
        (mips_output_function_prologue): Use a local FRAME variable.
        (mips_save_reg): Pass booleans to mips_subword.
        (mips_expand_prologue): Use a local FRAME variable.  Use
        cprestore_size to detect when .cprestore is needed.
        (mips_restore_reg): Use GP_REG_FIRST.
        (mips_expand_epilogue): Give the SIBCALL_P argument type "bool"
        rather than "int".  Use local FRAME and REGNO variables.
        (mips_can_use_return_insn): Return a "bool" rather than an "int".
        (mips_secondary_reload_class): Give the IN_P argument type "bool"
        rather than "int".
        (mips_linked_madd_p): Rename arguments to OUT_INSN and IN_INSN.
        (mips_store_data_bypass_p): Return a "bool" rather than an "int".
        (vr4130_swap_insns_p): Rename local variables to DEP1_P and DEP2_P.
        (mips_74k_agen_init): Assume INSN satisfies USEFUL_INSN_P.
        (mips_variable_issue): Do nothing unless INSN satisfies USEFUL_INSN_P.
        (builtin_description): Rename to...
        (mips_builtin_description): ...this.
        (mips_bdesc): Rename to...
        (mips_ps_bdesc): ...this.
        (sb1_bdesc): Rename to...
        (mips_sb1_bdesc): ...this.
        (dsp_bdesc): Rename to...
        (mips_dsp_bdesc): ...this.
        (dsp_32only_bdesc): Rename to...
        (mips_dsp_32only_bdesc): ...this.
        (bdesc_map): Rename to...
        (mips_bdesc_map): ...this.
        (bdesc_arrays): Rename to...
        (mips_bdesc_arrays): ...this.
        (mips_prepare_builtin_arg): Rename OP to OPNO and ARGNUM to ARGNO.
        Tweak error message.
        (mips_expand_builtin_direct): Rename HAS_TARGET to HAS_TARGET_P.
        Rename local variables I and J to OPNO and ARGNO respectively.
        Assert that the number of arguments is no more than the number of
        input operands.
        (mips_expand_builtin_compare): Use an array of arguments rather
        than an array of operands.  Assert that the number of operands is
        as expected.
        (add_constant): Rename to...
        (mips16_add_constant): ...this.  Use XNEW.
        (dump_constants_1): Rename to...
        (mips16_emit_constants_1): ...this.  Use ALL_SCALAR_FIXED_POINT_MODE_P.
        (dump_constants): Rename to...
        (mips16_emit_constants): ...this.
        (mips_sim_wait_reg, mips_sim_record_set): Use END_REGNO.
        (mips_set_mips16_mode): Don't call mips_init_split_addresses.
        Assign mips16_p to was_mips16_p.
        (mips_parse_cpu): Tweak warning message.
        (override_options): Rename to...
        (mips_override_options): ...this.  Move the mips_cost initialization
        out of the "shared with GAS" block.  Quote option names in error
        messages.
        (mips_conditional_register_usage): Make local variable REGNO unsigned.
        (mips_order_regs_for_local_alloc): Remove register keyword.

2007-10-21  Richard Sandiford  <rsandifo@nildram.co.uk>

        * system.h (IN_RANGE): Cast each argument individually.

2007-10-21  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_set_mips16_mode) Say sorry for hard-float
        MIPS16 code unless using o32 or o64.  

2007-10-21  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_cannot_change_mode_class): Don't check
        for modes smaller than 4 bytes.
        * config/mips/mips.md (*movhi_internal, *movqi_internal): Remove
        FPR alternatives.

2007-10-21  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips-protos.h (mips_output_aligned_bss): Delete.
        * config/mips/linux.h (BSS_SECTION_ASM_OP): Delete.
        (ASM_OUTPUT_ALIGNED_BSS): Delete.
        * config/mips/mips.c (mips_output_aligned_bss): Delete.

2007-10-21  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_function_ok_for_sibcall): Only forbid
        sibling calls to "mips16" functions if the function satisfies
        const_call_insn_operand.

2007-10-21  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_va_start): Fix types in calls
        to build_int_cst.

2007-10-21  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_rtx_costs): Only recognize reciprocals
        if ISA_HAS_FP4.

2007-10-21  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.h (ISA_HAS_LDC1_SDC1): New macro.
        * config/mips/mips.c (mips_split_64bit_move_p): Use ISA_HAS_LDC1_SDC1
        instead of checking mips_isa.

2007-10-21  Richard Sandiford  <rsandifo@nildram.co.uk>

        * doc/invoke.texi (-mpaired-single): Don't say that the option
        requires 64-bit code.
        * config/mips/mips-protos.h (mips_modes_tieable_p): Declare.
        * config/mips/mips.h (ISA_HAS_PAIRED_SINGLE): New macro.
        (ISA_HAS_NMADD_NMSUB): Add a mode argument.  Return true for
        V2SF if ISA_MIPS32R2.
        (MODES_TIEABLE_P): Use mips_modes_tieable_p.
        * config/mips/mips.c (mips_rtx_costs): Pass a mode argument
        to ISA_HAS_NMADD_NMSUB.
        (mips_split_doubleword_move): Handle V2SF.
        (mips_modes_tieable_p): New function.
        (override_options): Report a warning rather than an error when
        -mpaired-single is used on ISAs that don't support it; use
        ISA_HAS_PAIRED_SINGLE to check that case.
        * config/mips/mips.md (MOVE64): New mode iterator.  Replace DI
        and DF move splitters with a single MOVE64 splitter, thereby adding
        a V2SF splitter too.
        (SPLITF): Add TARGET_DOUBLE_FLOAT conditions to DI and DF.
        Add a TARGET_FLOAT64 condition to TF.  Add V2SF to the iterator.
        (HALFMODE): Add V2SF.
        (*nmadd<mode>, *nmadd<mode>_fastmath, *nmsub<mode>)
        (*nmsub<mode>_fastmath): Add a mode argument to ISA_HAS_NMADD_NMSUB.
        (movv2sf_hardfloat_64bit): Tweak ordering of conditions.
        (movv2sf_hardfloat_32bit): New pattern.
        (load_low<mode>, load_high<mode>, store_word<mode>): Remove
        TARGET_DOUBLE_FLOAT conditions.

2007-10-20  Jakub Jelinek  <jakub@redhat.com>

        * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Point
        saved CR2 offset to low 32 bits of regs->ccr rather than the whole
        64-bit register in 64-bit libgcc.

2007-10-20  Eric B. Weddington  <eweddington@cso.atmel.com>

        * config/avr/avr.c (avr_mcu_types): Add at90pwm2b, at90pwm3b.
        * config/avr/avr.h (LINK_SPEC): Likewise.
        (CRT_BINUTILS_SPECS): Likewsie.
        * config/avr/t-avr (MULTILIB_MATCHES): Likewise.

2007-10-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * doc/invoke.texi (Warning Options): Move -w, -Werror, -Werror=
        and -Wfatal-errors together.
        
2007-10-20  Alan Modra  <amodra@bigpond.net.au>

        PR target/33812
        * config/rs6000/rs6000.c (rs6000_emit_epilogue): Revert 2007-05-16
        change for vrsave, ie restore after frame pop.

2007-10-19  David S. Miller  <davem@davemloft.net>

        * config/sparc/niagara2.md: Fix copyright notice.

2007-10-19  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/23820
        PR tree-optimization/24309
        PR tree-optimization/33766
        * testsuite/gcc.dg/tree-ssa/pr23820.c: New.
        * testsuite/gcc.dg/tree-ssa/pr24309.c: New.
        * testsuite/gcc.dg/tree-ssa/pr33766.c: New.
        * testsuite/gcc.dg/tree-ssa/ltrans-3.c: XFAILed.
        * tree-loop-linear.c (perfect_loop_nest_depth): New.
        (linear_transform_loops): Use perfect_loop_nest_depth.
        * lambda-code.c (perfect_nest_p): Outer loops in perfect nests 
        should have a single condition: their exit.

2007-10-19  Richard Guenther  <rguenther@suse.de>

        PR middle-end/33816
        PR middle-end/32921
        * stor-layout.c (layout_type): Assert that aggregates do not
        have their alias sets set.
        * alias.c (get_alias_set): Return alias set zero for incomplete
        types, return the alias set of the element for incomplete array
        types, but do not remember these.

2007-10-19  Richard Guenther  <rguenther@suse.de>

        Revert
        2007-10-19  Richard Guenther  <rguenther@suse.de>

        PR middle-end/32921
        * tree.c (build_array_type): Do not re-layout unbound array
        types.

2007-10-19  Richard Guenther  <rguenther@suse.de>

        PR middle-end/32921
        * tree.c (build_array_type): Do not re-layout unbound array
        types.

2007-10-19  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_canonicalize_comparison):  Check
        mips_relational_operand_ok_p before trying to rewrite the test.
        Only calculate PLUS_ONE if needed.
        (mips_emit_int_relational): Don't call mips_relational_operand_ok_p
        here.

2007-10-19  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips16e_build_save_restore): Fix *OFFSET_PTR
        calculation.

2007-10-19  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_call_tls_get_addr): Don't claim that
        the call uses the incoming value of $2.

2007-10-19  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_call_tls_get_addr): Use gen_const_mem
        rather then gen_rtx_MEM.
        (mips_setup_incoming_varargs): Use gen_frame_mem rather than
        gen_rtx_MEM.
        (mips_set_return_address): Likewise.
        (mips_restore_gp): Likewise.

2007-10-19  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (gpr_mode): Delete.
        (mips16e_build_save_restore): Use word_mode and UNITS_PER_WORD
        instead of gpr_mode.
        (mips_for_each_saved_reg): Likewise.
        (mips_expand_prologue, mips_expand_epilogue): Likewise.
        (override_options): Don't initialize gpr_mode.
        * config/mips/mips.md (eh_return): Use word_mode instead of gpr_mode.

2007-10-19  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_hard_regno_nregs): Put the UNITS_PER_WORD
        case last.
        (mips_class_max_nregs): Calculate the smallest consituent register
        size and use that to determine an upper bound on the number of
        registers.

2007-10-19  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips16_copy_fpr_return_value): New function,
        split out from...
        (mips_expand_epilogue): ...here.
        (mips_mdebug_abi_name): New function, split out from...
        (mips_file_start): ...here.
        (mips_hard_regno_mode_ok_p): New function, split out from...
        (override_options): ...here.
        (mips_expand_builtin_1): New function, split out from...
        (mips_expand_buitin): ...here.  Abort if we don't recognize
        the function.

2007-10-19  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (build_mips16_function_stub): Load the
        target address into $1 before transfering the arguments.
        Don't use ".set noreorder".
        (build_mips16_call_stub): Likewise.

2007-10-19  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_output_32bit_xfer): New function.
        (mips_output_64bit_xfer): Likewise.
        (mips16_fp_args): Rename to...
        (mips_output_args_xfer): ...this and replace the FROM_FP_P argument
        with a DIRECTION argument.  Use mips_output_32bit_xfer and
        mips_output_64bit_xfer.
        (build_mips16_function_stub): Update accordingly.
        (mips16_fpret_double): Delete.
        (build_mips16_call_stub): Update after above changes.
        Use mips_output_32bit_xfer.  Use mips_output_64bit_xfer instead
        of mips16_fpret_double.  Use GP_REG_RETURN.

2007-10-19  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips16_fp_args): Remove the FILE argument and
        use asm_out_file instead.
        (build_mips16_function_stub): Likewise.
        (build_mips16_call_stub, mips_output_function_prologue): Update
        accordingly.

2007-10-18  David S. Miller  <davem@davemloft.net>

        Add Niagara-2 support.
        * doc/invoke.texi: Document -m{cpu,tune}=niagara2.
        * config.gcc: Add niagara2 to cpu and tune lists for sparc.
        * config/sparc/sparc.md (sparc_cpu_attr): Add niagara2.
        (include): Add inclusion of niagara2.md
        * config/sparc/sparc.c (niagara2_costs): New.
        (sparc_override_options): Add niagara2 entry to cpu_default[]
        and cpu_table[].  Set align_functions to 32 on Niagara2.  Use
        niagara2_costs when PROCESSOR_NIAGARA2.  Handle Niagara2 for
        PARAM_SIMULTANEOUS_PREFETCHES and PARAM_L1_CACHE_LINE_SIZE.
        (sparc_initialize_trampoline): Handle niagara2 like niagara.
        (sparc64_initialize_trampoline): Likewise.
        (sparc_use_sched_lookahead): Likewise.
        (sparc_issue_rate): Likewise.
        * config/sparc/sol2-bi.h: Handle TARGET_CPU_niagara2 and
        mcpu=niagara2
        * config/sparc/sparc.h (TARGET_CPU_niagara2): Define.
        ({CPP,ASM}_CPU64_DEFAULT_SPEC): Set appropriately for
        TARGET_CPU_niagara2.
        (PROCESSOR_NIAGARA2): New.
        (REGISTER_MOVE_COST): Handle PROCESSOR_NIAGARA2.
        (BRANCH_COST): Likewise.
        * config/sparc/linux64.h: Handle TARGET_CPU_niagara2.
        * config/sparc/sol2.h: Likewise.
        * config/sparc/niagara2.md: New file.

2007-10-18  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_frame_info): Remove gp_reg_size and
        and fp_reg_size.
        (mips_compute_frame_info): Remove associated code.
        (mips16e_build_save_restore): Check num_fp instead of fp_reg_size.

2007-10-18  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips-protos.h (compute_frame_size): Delete.
        * config/mips/mips.h: Update comments.
        * config/mips/mips.c (mips_frame_info): Remove initialized.
        (compute_frame_size): Rename to...
        (mips_compute_frame_info): ...this and make static.  Remove the
        SIZE argument and return no value.  Remove the setting of initialized.
        Update rest of file accordingly.
        (mips_set_return_address): Don't call compute_frame_size.
        (mips_can_use_return_insn): Don't check df_regs_ever_live_p (31).
        Don't call compute_frame_size.

2007-10-18  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips-protos.h (mips_frame_pointer_required): Declare.
        * config/mips/mips.h (FRAME_POINTER_REQUIRED): Use
        mips_hard_frame_pointer_required.
        (CAN_ELIMINATE): Rely on FRAME_POINTER_REQUIRED to check for
        large MIPS16 frames.
        * config/mips/mips.c (mips_frame_pointer_required): New function.

2007-10-18  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_frame_info): Add arg_pointer_offset
        and hard_frame_pointer_offset.
        (mips_debugger_offset): Use hard_frame_pointer_offset.
        (mips16e_collect_argument_save_p): Likewise.
        (compute_frame_size): Initialize arg_pointer_offset and
        hard_frame_pointer_offset.
        (mips_initial_elimination_offset): Use them.
        (mips_output_function_prologue): Use hard_frame_pointer_offset.
        (mips_expand_prologue, mips_expand_epilogue): Likewise.

2007-10-18  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.h (STARTING_FRAME_OFFSET): Remove rtl
        profiling code.
        * config/mips/mips.c (mips_frame_info): Give num_gp and num_fp type
        "unsigned int" rather than "int" and put them with the other
        register-related fields.  Put expanded comments above fields
        rather than to their right.
        (mips16e_mask_registers): Replace the GP_REG_SIZE_PTR argument
        with a NUM_REGS_PTR argument.
        (mips16e_save_restore_pattern_p): Update accordingly.
        (compute_frame_size): Clarify frame diagram.  Rewrite.

2007-10-18  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips-ftypes.def: New file.
        * config/mips/mips.c (MIPS_FTYPE_NAME1, MIPS_FTYPE_NAME2)
        (MIPS_FTYPE_NAME3, MIPS_FTYPE_NAME4): New macros.
        (mips_function_type): Redefine using mips-ftypes.def.
        (dsp_bdesc): Use POINTER rather than PTR in the MIPS_*_FTYPE_* names.
        (mips_builtin_vector_type): New function.
        (MIPS_ATYPE_VOID, MIPS_ATYPE_INT, MIPS_ATYPE_POINTER, MIPS_ATYPE_SI)
        (MIPS_ATYPE_USI, MIPS_ATYPE_DI, MIPS_ATYPE_SF, MIPS_ATYPE_DF)
        (MIPS_ATYPE_V2SF, MIPS_ATYPE_V2HI, MIPS_ATYPE_V4QI, MIPS_FTYPE_ATYPES1)
        (MIPS_FTYPE_ATYPES2, MIPS_FTYPE_ATYPES3, MIPS_FTYPE_ATYPES4): New
        macros.
        (mips_build_function_type): New function.
        (mips_init_builtins): Use it to create types lazily.

2007-10-18  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.h (set_volatile): Delete.
        * config/mips/mips.c (set_volatile): Delete.
        (mips_print_operand_punctuation): New function, split out from
        print_operand.  Remove '%{', '%}', '%~', '%&' and '%!'.
        Use the same character ordering in the code and the comments.
        Use a recursive call to handle '*'.  Abort on unknown characters.
        (mips_init_print_operand_punct): New function, split out from
        override_options.
        (mips_print_int_branch_condition): New function, split out from
        print_operand.  Use GET_RTX_NAME.  Use output_operand_lossage
        to report unexpected codes.
        (mips_print_float_branch_condition): New function, split out from
        print_operand.  Use output_operand_lossage to report unexpected codes.
        (print_operand): Rework to use a case statement.  Use the
        same letter ordering in the code and the comments.  Use
        output_operand_lossage to report unexpected codes and
        reverse_condition to handle inverted branch conditions.
        (override_options): Use mips_init_print_operand_punct.

2007-10-18  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.h: Move variable declarations to end of file and
        enclose them all in #ifndef USED_FOR_TARGET.
        * config/mips/mips.c: Reorder functions into more logical groups,
        and so that callees appear before callers.  Put the targetm
        initializer at the end of the file.  Remove forward static
        declarations where possible.
        (mips_init_builtins): Add "static" to definition.
        (mips_expand_builtin, mips_mode_rep_extended): Likewise.

2007-10-18  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (TARGET_MIN_ANCHOR_OFFSET): Delete.
        (TARGET_MAX_ANCHOR_OFFSET): Delete.
        (mips_cannot_force_const_mem): Don't check TARGET_HAVE_TLS.
        (mips_set_mips16_mode): Initialize min_anchor_offset and
        max_anchor_offset directly to constants.

2007-10-18  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c: Delete trailing whitespace.

2007-10-18  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_expand_call): Use FAKE_CALL_REGNO.
        (mips_avoid_hazard): Allow multiple sets for HAZARD_DELAY,
        and pick the first.
        * config/mips/mips.md (load_call<mode>): Don't make the unspec
        depend on FAKE_CALL_REGNO.  Set FAKE_CALL_REGNO.

2007-10-18  David Daney  <ddaney@avtrex.com>

        * config/mips/linux-unwind.h (mips_fallback_frame_state): Use new
        reg_offset variable to calculate register locations.

2007-10-18  Richard Guenther  <rguenther@suse.de>

        * tree-ssa.c (uid_ssaname_map_eq): New function.
        (uid_ssaname_map_has): Likewise.
        (init_tree_ssa): Allocate default_defs as uid_ssaname map.
        * tree-flow.h (struct gimple_df): Make default_defs a
        uid_ssaname map.
        * tree-dfa.c (gimple_default_def): Deal with it.
        (set_default_def): Likewise.

2007-10-18  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (struct gimple_df): Make referenced_vars
        a uid_decl_map.
        (uid_decl_map_eq): Declare.
        (uid_decl_map_hash): Likewise.
        * tree-ssa.c (uid_decl_map_eq): New function.
        (uid_decl_map_hash): Likewise.
        (init_tree_ssa): Make referenced_vars a uid_decl_map.
        * tree-flow-inline.h (first_referenced_var): Deal with
        the referenced_vars representation change.
        (next_referenced_var): Likewise.
        * tree-dfa.c (referenced_var_lookup): Likewise.
        (referenced_var_check_and_insert): Likewise.
        (remove_referenced_var): Likewise.

2007-10-18  Daniel Jacobowitz  <dan@codesourcery.com>

        * config/mips/mips.c (mips_dwarf_register_span): New.
        (TARGET_DWARF_REGISTER_SPAN): Define.

2007-10-18  Chen Liqin  <liqin@sunnorth.com.cn>

        * config.gcc : update score-*-elf(extra_objs).
        * config/score/mac.md : Remove.
        * config/score/misc.md : Remove.
        * config/score/score7.md : Remove.
        * config/score/score-mdaux.h : Remove.
        * config/score/score-mdaux.c : Remove.
        * config/score/score-version.h : Remove.
        * config/score/score-generic.md : New.
        * config/score/score3.h : New.
        * config/score/score3.c : New.
        * config/score/score7.h : New.
        * config/score/score7.c : New.
        * config/score/mul-div.S : add flush_cache score3 support.
        * config/score/elf.h : Fix some typos.
        * config/score/score.md : merge score3 and score7 pattern.
        * config/score/score.c : use to seperate which target it used.
        * config/score/score.h : use to seperate the target macro.
        * config/score/score.opt : remove -mmac option , add -mscore3,
        -mscore3d and -march OPTION support.
 
2007-10-17  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * cfgexpand.c (expand_stack_vars): Add checking to make sure
        that the offset of a variable is not greater than the size
        of the paritition.

2007-10-17  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_mcu_types): Add support for atmega48p, 
        atmega88p, atmega168p and atmega328p devices.
        * config/avr/avr.h (LINK_SPEC): (Ditto.).
        (CRT_BINUTILS_SPECS): (Ditto.).
        * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).

2007-10-17  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * sched-ebb.c: Surround code with '#ifdef INSN_SCHEDULING'.
        * ddg.c: Ditto.
        * sched-deps.c: Ditto.  Remove nested #ifdef's INSN_SCHEDULING.
        * sched-int.h: Surround declarations with '#ifdef INSN_SCHEDULING'.
        (print_insn): Move declaration to ...
        * rtl.h (print_insn): ... here.

2007-10-17  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * config/m68k/m68k.h (m68k_sched_cpu, m68k_sched_attr_opx_type,
        m68k_sched_attr_opy_type, m68k_sched_attr_size, m68k_sched_attr_op_mem,
        m68k_sched_branch_type): Move declarations to ...
        * config/m68/m68k-protos.h: ... here.

2007-10-17  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * genattrtab.c (main): Rearrange output of insn-attrtab.c headers.

2007-10-17  Eric B. Weddington  <eweddington@cso.atmel.com>

        * config/avr/avr.c (avr_mcu_types): Add attiny48.
        * config/avr/avr.h (LINK_SPEC): Likewise.
        (CRT_BINUTILS_SPECS): Likewsie.
        * config/avr/t-avr (MULTILIB_MATCHES): Likewise.

2007-10-17  Eric B. Weddington  <eweddington@cso.atmel.com>

        * config/avr/avr.c (avr_mcu_types): Add attiny43u.
        * config/avr/avr.h (CRT_BINUTILS_SPECS): Likewsie.
        * config/avr/t-avr (MULTILIB_MATCHES): Likewise.

2007-10-17  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/33794
        * reg-stack.c (move_for_stack_reg): Swap input argument of
        UNSPEC_TAN insn to the top of the stack.

2007-10-17  Uros Bizjak  <ubizjak@gmail.com>

        PR target/32961
        * config/i386/i386.c (ix86_expand_builtin) [IX86_BUILTIN_PSLLWI128,
        IX86_BUILTIN_PSLLDI128, BUILTIN_PSLLQI128, IX86_BUILTIN_PSRAWI128,
        IX86_BUILTIN_PSRADI128, IX86_BUILTIN_PSRLWI128,
        IX86_BUILTIN_PSRLDI128, IX86_BUILTIN_PSRLQI128]: Do not require
        immediate shift value.
        * config/i386/emmintrin.h (_mm_slli_epi16, _mm_slli_epi32,
        _mm_slli_epi64, _mm_srai_epi16, _mm_srai_epi32, _mm_srli_epi16,
        _mm_srli_epi32, _mm_srli_epi64): Remove 'const' from count argument.
        Remove macros for !__OPTIMIZE__ case.

2007-10-17  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-structalias.c (rewrite_constraints): Don't test for
        directness anymore.
        (perform_var_substitution): Only DFS from real nodes. Don't test
        for directness.
        (unite_pointer_equivalences): Fix broken test.

2007-10-17  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_emit_epilogue): Correct
        altivec sp_offset.  Rearrange sp_offset assignments to
        correspond to stack adjustments.  Use frame_reg_rtx for
        SPE register restores.  Correct SPE stack adjustment.

2007-10-17  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * builtins.c (gimplify_va_arg_expr): Use inform for help message.
        * toplev.c (check_global_declaration_1): Use appropriate warning
        option instead of unnamed warning.
        * stor-layout.c (layout_decl): Likewise.
        * c-typeck.c (build_conditional_expr): Likewise.
        (build_compound_expr): Fix wrong comment.
        (build_binary_op): Use appropriate warning option instead of
        unnamed warning.
        * cfgexpand.c (tree_expand_cfg): Likewise.
        * tree-optimize.c (tree_rest_of_compilation): Likewise.
        * tree-cfg.c (remove_useless_stmts_warn_notreached): Likewise.
        (execute_warn_function_return): Likewise.
        * stmt.c (warn_if_unused_value): Likewise.

2007-10-16  Eric B. Weddington  <eweddington@cso.atmel.com>

        * config/avr/avr.c (avr_mcu_types): Add at90pwm216, at90pwm316.
        * config/avr/avr.h (LINK_SPEC): Likewise and remove regex for
        similar devices.
        (CRT_BINUTILS_SPECS): Likewsie.
        * config/avr/t-avr (MULTILIB_MATCHES): Likewise.

2007-10-16  Amruth Laxman  <amruth.laxman@nsn.com>

        PR target/33594
        * config/sparc/sparc.h (LOCAL_ALIGNMENT): Define.

2007-10-16  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * dce.c (init_dce): Only initialize the obstacks for the fast pass.
        (fini_dce): Only release them for the fast pass.
        (end_ud_dce): Delete.
        (rest_of_handle_ud_dce): Do not modify df_in_progress.
        Call fini_dce instead of end_ud_dce.
        (rest_of_handle_fast_dce): Do not modify df_in_progress.
        (run_fast_df_dce): Reset df_in_progress to false on exit.

2007-10-16  Paolo Bonzini  <bonzini@gnu.org>
            Maxim Kuvyrkov  <maxim@codesourcery.com>

        * target.h (unspec_may_trap_p): New target hook.
        * target-def.h (TARGET_UNSPEC_MAY_TRAP_P): New macro.
        * targhooks.c (default_unspec_may_trap_p): Default implementation of
        the hook.
        * targhooks.h (default_unspec_may_trap_p): Declare it.
        * doc/tm.texi (TARGET_UNSPEC_MAY_TRAP_P): Document new hook.
        * rtlanal.c (may_trap_p_1): Use new hook.  Make global.
        * rtl.h (may_trap_p_1): Declare.
        
        * config/ia64/ia64.c (ia64_unspec_may_trap_p): New function to
        override default hook implementation.
        (TARGET_UNSPEC_MAY_TRAP_P): Override default implementation of the
        hook.

2007-10-16  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * doc/invoke.texi (Wextra): Move it just after Wall, list the
        options enabled by Wextra and mention Wuninitialized.
        
2007-10-15  Nigel Stephens  <nigel@mips.com>

        * config/mips/mips.h (LOCAL_ALIGNMENT): Define.

2007-10-15  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/33136
        * opts.c (decode_options): Don't enable flag_ipa_type_escape.

2007-10-15  Alexandre Oliva  <aoliva@redhat.com>

        PR tree-optimization/33735
        PR tree-optimization/33572
        * tree-inline.c (update_ssa_across_abnormal_edges): Revert
        2007-10-09's change.
        * except.c (duplicate_eh_regions): Don't look for prev_try
        beyond ERT_ALLOWED_EXCEPTIONS with an empty list.

2007-10-15  Alexandre Oliva  <aoliva@redhat.com>

        PR middle-end/33706
        * tree-inline.c (copy_bb): Use bsi_replace to replace a
        __builtin_va_arg_pack-containing call stmt.

2007-10-15  Razya Ladelsky  <razya@il.ibm.com>

        * matrix-reorg.c (gate_matrix_reorg): Don't comment out whole
        program flag.

2007-10-15  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/33619
        * tree-ssa-ter.c (is_replaceable_p): Return false for all
        calls.

2007-10-15  David Edelsohn  <edelsohn@gnu.org>

        * config.gcc (powerpc-ibm-aix5*): Install altivec.h.

2007-10-15  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (extract_array_ref): Remove.
        (fold_comparison): Handle POINTER_PLUS_EXPR with the
        generic address expression comparison folding.  Remove
        the folding that used extract_array_ref.

2007-10-15  Maxim Kuvyrkov  <maxim@codesourcery.com>

        PR target/33133
        * haifa-sched.c (process_insn_forw_deps_be_in_spec): Check if
        speculation type of insn can be changed before trying to do that.

2007-10-15  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * dse.c (struct insn_info): Add 'frame_read' field.
        (scan_insn): For the call to a const function, set frame_read if
        reload has been run.
        If the insn reads the frame, kill the frame related stores.
        (scan_reads_nospill): Likewise.

2007-10-14  Jason Merrill  <jason@redhat.com>

        * tree-eh.c (optimize_double_finally): Don't assume that the
        cleanup we're duplicating is only one statement.

2007-10-14  Kazu Hirata  <kazu@codesourcery.com>

        * config/fixed-bit.c, config/i386/cpuid.h, config/i386/i386.c,
        config/i386/i386.md, config/i386/sse.md, function.c, jump.c,
        modulo-sched.c, ra-conflict.c, toplev.c, tree-eh.c, tree-sra.c,
        tree-ssa-dse.c, tree-vect-analyze.c, tree-vect-patterns.c,
        tree-vect-transform.c: Fix comment typos.
        * doc/extend.texi: Fix a typo.

        * c-common.h: Remove the prototype for c_expand_body.
        * c-tree.h: Remove the prototype for c_disregard_inline_limits.
        * tree.h: Remove the prototype for fold_build_call_expr.

        * c-objc-common.h (LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN):
        Remove.
        * c-tree.h: Remove the prototype for c_cannot_inline_tree_fn.

2007-10-13  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix53.h: New file.
        * config/rs6000/aix{41,43,51,52}.h (TARGET_ALTIVEC): Define to 0.
        (TARGET_ALTIVEC_ABI): Same.
        * config/rs6000/aix.h (TARGET_ALTIVEC): Delete.
        (TARGET_ALTIVEC_ABI): Delete.
        * config.gcc (powerpc-ibm-aix5*): Rename to aix5.2.  Add new
        stanza defaulting to aix5.3.

2007-10-12  Nathan Froyd  <froydnj@codesourcery.com>

        * config/i386/i386.md (SI_REG, DI_REG): New constants.
        (strmov): Use defined constants.
        (cmpstrnsi): Likewise.
        * config/i386/i386.c (decide_alg): Use defined constants.
        (ix86_expand_strlen): Likewise.

2007-10-12  Richard Sandiford  <rsandifo@nildram.co.uk>

        * dse.c (find_shift_sequence): Reinstate "<= UNITS_PER_WORD" condition.
        * var-tracking.c (micro_operation_def): Update comment on u.loc.
        (mode_for_reg_attrs, var_lowpart): New functions.
        (add_uses): Consider recording a lowpart of LOC for MO_USE.
        (add_stores): Likewise MO_SET and MO_COPY.  If the source of a set
        or copy is known, set LOC to the SET that performs the set, instead
        of the destination.
        (find_src_status, find_src_set_src): Remove LOC parameter.
        Replace INSN with the source value.
        (compute_bb_dataflow, emit_notes_in_bb): Check for a SET u.loc when
        handling MO_SET and MO_COPY.  Update the calls to find_src_status
        and find_src_set_src.

2007-10-12  Nathan Froyd  <froydnj@codesourcery.com>

        PR 11001
        * config/i386/i386.md (strmov): Check for esi and edi usage.
        * config/i386/i386.c (decide_alg): Check whether we can use a
        rep prefix and adjust algorithm choice accordingly.
        (ix86_expand_strlen): Check for eax, ecx, and edi usage.

2007-10-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * config/c4x/c4x.md (mulqi3, mulhi3): Use optab_libfunc.

2007-10-12  Kenneth Zadeck <zadeck@naturalbridge.com>

        * global.c (build_insn_chain): Formatting fixes.

2007-10-12  Richard Guenther <rguenther@suse.de>

        * tree-ssa-forwprop.c (forward_propagate_into_cond): For
        combining both operands require either both have single uses
        or combining to a constant.

2007-10-12  Richard Guenther  <rguenther@suse.de>

        PR middle-end/26198
        * tree-ssa-forwprop.c (can_propagate_from): Do not propagate from
        a rhs with side-effects or which is a load.
        (forward_propagate_into_cond): Also try combining both operands.

2007-10-12  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/33742
        * tree-vect-transform.c (vectorizable_operation): Return false
        if get_vectype_for_scalar_type for scalar_dest can't be determined.
        (vectorizable_call): Same for rhs_type and lhs_type.

2007-10-12  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/33645
        * tree-ssa-live.c (mark_all_vars_used): Add data argument,
        pass it to walk_tree.
        (mark_all_vars_used_1): Pass data through to mark_all_vars_used.
        When calling set_is_used on a VAR_DECL, if data is not NULL and
        its DECL_UID is in the bitmap, call mark_all_vars_used on its
        DECL_INITIAL after clearing the bit in bitmap.
        (remove_unused_locals): Adjust mark_all_vars_used callers.
        Instead of removing unused global vars from unexpanded_var_list
        immediately record them in bitmap, call mark_all_vars_used on
        all used global vars from unexpanded_var_list and only purge
        global vars that weren't found used even during that step.
 
2007-10-11  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * gthr-posix.h (__gthread_active_init): Create detached instead of
        joinable thread when testing whether threads are active on hppa-hpux.
        * gthr-posix95.h (__gthread_active_init): Likewise.

2007-10-11  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR middle-end/33676
        * global.c (build_insn_chain): Include insn that occur between
        basic blocks.
        
2007-10-11  Tom Tromey  <tromey@redhat.com>

        * gengtype-yacc.y: Delete.

2007-10-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (AX_REG, DX_REG, CX_REG): New constants.
        * config/i386/i386.c (ix86_function_arg_regno_p, function_arg_32,
        function_value_32, function_value_64, function_value_ms_64,
        setup_incoming_varargs_64, ix86_expand_prologue, ix86_expand_call,
        legitimize_tls_address, x86_this_parameter, x86_output_mi_thunk):
        Use new constants.

2007-10-11  Richard Guenther  <rguenther@suse.de>

        * gcse.c (hash_scan_set): If the next nonnote insn is in
        a different basic block insert the set.

2007-10-11  Richard Guenther  <rguenther@suse.de>

        PR middle-end/33724
        * tree-cfg.c (one_pointer_to_useless_type_conversion_p): New function.
        (verify_gimple_expr): Use it to verify pointer-to types for
        ADDR_EXPRs.

2007-10-11  Richard Guenther  <rguenther@suse.de>

        PR c/33726
        * c-typeck.c (build_array_ref): Do not strip qualifiers from
        the array element type.

2007-10-11  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/33638
        * dse.c (struct insn_info): Remove 'stack_read' field,
        add 'stack_pointer_based' field.
        (record_store): For a store with non-constant base, record
        whether it is stack pointer based.
        (scan_insn): For the call to a const function, remove stack
        pointer based stores from the list of local active stores.
        (scan_reads_nospill): Delete code dealing with const functions.

2007-10-10  Peter Bergner  <bergner@vnet.ibm.com>

        * ra-conflict.c (partial_bitnum, max_bitnum): Change type of variables
        to HOST_WIDE_INT.
        (conflict_p, set_conflict, set_conflicts): Likewise.
        * global.c (global_alloc): Likewise.
        * ra.h: Update prototypes.

2007-10-10  Wolfgang Gellerich  <gellerich@de.ibm.com>

        * opth-gen.awk: Fixed generation of comment stating the origin
          of options.h

2007-10-10  Kazu Hirata  <kazu@codesourcery.com>

        Revert:
        2007-10-09  Kazu Hirata  <kazu@codesourcery.com>
        * longlong.h (count_leading_zeros): Replace '{' and '}' with '%{'
        and '%}', respectively.

        Revert:
        2007-10-09  Kazu Hirata  <kazu@codesourcery.com>
        * config/m68k/m68k.c (print_operand): Handle '{' and '}'.
        * config/m68k/m68k.h (PRINT_OPERAND_PUNCT_VALID_P): Accept '{'
        and '}'.
        * config/m68k/m68k.md: Replace '{' with '%{' where '{' is
        meant to be output.

        Revert:
        2007-10-07  Kazu Hirata  <kazu@codesourcery.com>
        * config/m68k/m68k.c, config/m68k/m68k.md: Use the assembly
        syntax for ASSEMBLER_DIALECT.
        * config/m68k/m68k.h (ASSEMBLER_DIALECT): New.

2007-10-10  Revital Eres  <eres@il.ibm.com>

        * modulo-sched.c (check_nodes_order): Dump the final order of
        the nodes.
        (get_sched_window): Add dump info.
        (calculate_order_params): Dump order params of the nodes.

2007-10-09  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR middle-end/33669
        * ra-conflict.c (record_one_conflict_between_regnos, 
        set_conflicts_for_earlyclobber, global_conflicts): Improved logging.
        (global_conflicts): Enhanced incorrect check.
        
2007-10-09  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (output_call_frame_info): FDEs are always emitted
        if flag_exceptions is not set.
        * config/darwin.c (darwin_emit_unwind_label): Rewrite to use
        assemble_name rather than incorrectly emulating it.

        * doc/extend.texi (Deprecated Features): Mention that <? and >? and
        friends are removed from G++.

2007-10-09  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c-opts.c (c_common_handle_option): -Wnontemplate-friend,
        -Wwrite-strings and -Wmultichar are enabled by default, so Wall
        enabling them is redundant. Don't check two times for
        c_dialect_cxx.
        
2007-10-09  H.J. Lu  <hongjiu.lu@intel.com>

        * ra-conflict.c (record_one_conflict_between_regnos): Revert
        the last change.
        (set_conflicts_for_earlyclobber): Likewise.
        (global_conflicts): Likewise.

2007-10-09  Kazu Hirata  <kazu@codesourcery.com>

        * longlong.h (count_leading_zeros): Replace '{' and '}' with '%{'
        and '%}', respectively.

2007-10-09  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.c (print_operand): Handle '{' and '}'.
        * config/m68k/m68k.h (PRINT_OPERAND_PUNCT_VALID_P): Accept '{'
        and '}'.
        * config/m68k/m68k.md: Replace '{' with '%{' where '{' is
        meant to be output.

2007-10-09  Richard Guenther  <rguenther@suse.de>

        PR middle-end/33692
        * gimplify.c (canonicalize_component_ref): Honor qualifiers
        of referenced structure and component.

2007-10-09  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR middle-end/33669
        * ra-conflict.c (record_one_conflict_between_regnos,
        set_conflicts_for_earlyclobber, global_conflicts): Improved
        logging.
        (global_conflicts): Removed incorrect check.

2007-10-09  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR tree-optimization/33615
        * tree-ssa-pre.c (compute_avail): Don't call make_values_for_stmt
        if the statement might throw.  Fix formatting.

2007-10-09  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR tree-optimization/33615
        * tree-ssa-loop-im.c (movement_possibility): Return MOVE_IMPOSSIBLE
        if the rhs might throw.

2007-10-09  Jan Hubicka  <jh@suse.cz>

        * invoke.texi (align-threshold, align-loop-iterations): Document.
        * final.c: Include cfgloop.h, params.h
        (compute_alignments): Dump decisions and compare them with loop
        structure; honor given parameters.
        (pass_compute_alignments): New dump file.
        * params.def (PARAM_ALIGN_THRESHOLD, PARAM_ALIGN_LOOP_ITERATIONS): New.
        * Makefile.in (final.o): Add dependency on cfgloop.h and params.h

2007-10-09  James E. Wilson  <wilson@specifix.com>

        PR tree-optimization/33655
        PR middle-end/22156
        * tree-sra.c (bitfield_overlaps_p): When fld->element is INTEGER_CST,
        convert it to bitsizetype before size_binop call.

2007-10-09  Alexandre Oliva  <aoliva@redhat.com>

        PR tree-optimization/33572
        * tree-inline.c (update_ssa_across_abnormal_edges): Tolerate
        the absence of a corresponding edge from the exit block.

2007-10-09  Alexandre Oliva  <aoliva@redhat.com>

        PR middle-end/22156
        * tree-sra.c (instantiate_element): Use BYTES_BIG_ENDIAN for
        bit-field layout.
        (sra_build_assignment): Likewise.  Set up mask depending on
        precision, not type.
        (sra_build_bf_assignment): Use BYTES_BIG_ENDIAN.  Don't overflow
        computing bit masks.
        (sra_build_elt_assignment): Don't view-convert from signed to
        unsigned.
        (sra_explode_bitfield_assignment): Use bit-field type if
        possible.  Use BYTES_BIG_ENDIAN.

2007-10-08  Alexandre Oliva  <aoliva@redhat.com>

        PR middle-end/22156
        * tree-sra.c (scalarize_lsdt): Fix thinko in testing whether
        the original stmt can throw.
        (sra_build_bf_assignment): Fix type mismatch when applying negated
        mask.

2007-10-08  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.h (DARWIN_REGISTER_TARGET_PRAGMAS): Register
        '#pragma mark' to be executed at preprocessing time.

2007-10-08  Ollie Wild  <aaw@google.com>

        * varasm.c (compare_constant): Removed call to
        lang_hooks.expand_constant.
        (copy_constants): Removed call to lang_hooks.expand_constant.
        (compute_reloc_for_constant): Removed call to
        lang_hooks.expand_constant.
        (output_addressed_constants): Removed call to
        lang_hooks.expand_constant.
        (constructor_static_from_elts_p): Removed call to
        lang_hooks.expand_constant.
        (output_constant): Removed calls to lang_hooks.expand_constant.
        * langhooks.h (struct lang_hooks): Removed field expand_constant.
        * langhooks-def.h (lhd_return_tree): Removed.
        (LANG_HOOKS_EXPAND_CONSTANT): Removed.
        (LANG_HOOKS_INITIALIZER): Removed LANG_HOOKS_EXPAND_CONSTANT.
        * langhooks.c (lhd_return_tree): Removed.

2007-10-08  Mark Shinwell  <shinwell@codesourcery.com>

        * combine.c (setup_incoming_promotions): Ensure that
        arguments that have not undergone mode promotions do not
        incorrectly get marked as being sign- or zero-extended.

2007-10-08  Richard Guenther  <rguenther@suse.de>

        PR middle-end/33693
        PR middle-end/33695
        PR middle-end/33697
        * fold-const.c (fold_binary): Use correct types in folding
        of a * (1 << b) to (a << b).  Likewise for ~A & ~B to ~(A | B)
        and building of RROTATE_EXPR.

2007-10-08  Richard Guenther  <rguenther@suse.de>

        PR middle-end/33691
        PR middle-end/33694
        PR middle-end/33696
        * fold-const.c (fold_binary): Use the correct types when
        folding (A | CST1) & CST2 to (A & CST2) | (CST1 & CST2).
        (fold_binary): Use the correct types when folding
        (-A) - B to (-B) - A.
        (fold_unary): Use the correct types when folding ~(X).

2007-10-08  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * doc/invoke.texi (Wall): fix formatting issues.
        
2007-10-07  Richard Sandiford  <rsandifo@nildram.co.uk>

        * simplify-rtx.c (simplify_binary_operation_1): Canonicalize
        truncated shift counts.

2007-10-07  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.c, config/m68k/m68k.md: Use the assembly
        syntax for ASSEMBLER_DIALECT.
        * config/m68k/m68k.h (ASSEMBLER_DIALECT): New.

2007-10-06  Eric Botcazou  <ebotcazou@adacore.com>
            Nathan Froyd  <froydnj@codesourcery.com>

        * dwarf2out.c (dwarf2out_frame_init): Check for DWARF2_FRAME_INFO
        when determining whether to record INCOMING_RETURN_ADDR_RTX.

2007-10-06  Eric Botcazou  <ebotcazou@adacore.com>

        Revert:
        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.

2007-10-06  Alexandre Oliva  <aoliva@redhat.com>

        PR tree-optimization/33655
        PR middle-end/22156
        * tree-sra.c (bitfield_overlaps_p): Handle array and complex
        elements.

2007-10-06  Alexandre Oliva  <aoliva@redhat.com>

        PR tree-optimization/33572
        * tree-cfg.c (verify_stmts): Check for missing PHI defs.
        * tree-inline.c (update_ssa_across_eh_edges): Renamed to...
        (update_ssa_across_abnormal_edges): ... this.  Set slots in the
        return PHI node.
        (copy_edges_for_bb): Handle nonlocal label edges.
        (make_nonlocal_label_edges): Deleted.
        (optimize_inline_calls): Don't call it.

2007-10-05  Hans-Peter Nilsson  <hp@axis.com>

        * gthr-single.h: Revert last change.

2007-10-05  Michael Matz  <matz@suse.de>

        PR middle-end/33667
        * lower-subreg.c (decompose_multiword_subregs): Use
        validate_unshare_change().

2007-10-05  Peter Bergner  <bergner@vnet.ibm.com>

        * ra-conflict.c: Include "sparseset.h".
        (conflicts): Change to HOST_WIDEST_FAST_INT.
        (allocnos_live): Redefine variable as a sparseset.
        (SET_ALLOCNO_LIVE, CLEAR_ALLOCNO_LIVE, GET_ALLOCNO_LIVE):
        Delete macros.
        (allocno_row_words): Removed global variable.
        (partial_bitnum, max_bitnum, adjacency_pool, adjacency): New variables.
        (CONFLICT_BITNUM, CONFLICT_BITNUM_FAST): New defines.
        (conflict_p, set_conflict_p, set_conflicts_p): New functions.
        (record_one_conflict_between_regnos): Cache allocno values and reuse.
        Use set_conflict_p.
        (record_one_conflict): Update uses of allocnos_live to use
        the sparseset routines.  Use set_conflicts_p.
        (mark_reg_store): Likewise.
        (set_reg_in_live): Likewise.
        (global_conflicts): Update uses of allocnos_live.
        Use the new adjacency list to visit an allocno's neighbors
        rather than iterating over all possible allocnos.
        Call set_conflicts_p to setup conflicts rather than adding
        them manually.
        * global.c: Comments updated.  
        (CONFLICTP): Delete define.
        (regno_compare): New function.  Add prototype.
        (global_alloc): Sort the allocno to regno mapping according to
        which basic blocks the regnos are referenced in.  Modify the
        conflict bit matrix to a compressed triangular bitmatrix.
        Only allocate the conflict bit matrix and adjacency lists if
        we are actually going to allocate something.
        (expand_preferences): Use conflict_p.  Update uses of allocnos_live.
        (prune_preferences): Use the FOR_EACH_CONFLICT macro to visit an
        allocno's neighbors rather than iterating over all possible allocnos.
        (mirror_conflicts): Removed function.
        (dump_conflicts): Iterate over regnos rather than allocnos so
        that all dump output will be sorted by regno number.
        Use the FOR_EACH_CONFLICT macro.
        * ra.h: Comments updated.
        (conflicts): Update prototype to HOST_WIDEST_FAST_INT.
        (partial_bitnum, max_bitnum, adjacency, adjacency_pool):
        Add prototypes.
        (ADJACENCY_VEC_LENGTH, FOR_EACH_CONFLICT): New defines.
        (adjacency_list_d, adjacency_iterator_d): New types.
        (add_neighbor, adjacency_iter_init, adjacency_iter_done,
        adjacency_iter_next, regno_basic_block): New static inline functions.
        (EXECUTE_IF_SET_IN_ALLOCNO_SET): Removed define.
        (conflict_p): Add function prototype.
        * sparseset.h, sparseset.c: New files.
        * Makefile.in (OBJS-common): Add sparseset.o.
        (sparseset.o): New rule.

2007-10-05  Richard Guenther  <rguenther@suse.de>

        PR middle-end/33666
        * fold-const.c (fold_unary): Do not fold (long long)(int)ptr
        to (long long)ptr.

2007-10-05  Michael Matz  <matz@suse.de>

        PR inline-asm/33600
        * function.c (match_asm_constraints_1): Check for input
        being used in the outputs.

2007-10-05  Richard Guenther  <rguenther@suse.de>

        * tree-cfg.c (verify_gimple_expr): Accept OBJ_TYPE_REF.

2007-10-05  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR target/33635
        * config/mips/mips.c (mips_register_move_cost): Rewrite to use
        subset checks.  Make the cost of FPR -> FPR moves depend on
        mips_mode_ok_for_mov_fmt_p.

2007-10-04  Doug Kwan  <dougkwan@google.com>

        * gthr-posix.h (__gthread_cond_broadcast, __gthread_cond_wait,
        __gthread_cond_wait_recursive): Add to extend interface for POSIX
        conditional variables. (__GTHREAD_HAS_COND): Macro defined to signify
        support of conditional variables.
        * gthr-posix95.h (__gthread_cond_broadcast, __gthread_cond_wait,
        __gthread_cond_wait_recursive): Add to extend interface for POSIX
        conditional variables. (__GTHREAD_HAS_COND): Macro defined to signify