re PR rtl-optimization/39235 (get_simple_loop_desc returns uninitialized memory)

[gcc.git] / gcc / ChangeLog

2009-03-04  J"orn Rennecke  <joern.rennecke@arc.com>

        PR39235:
        * loop-iv.c (get_simple_loop_desc): Use XCNEW.

2009-03-04  Zdenek Dvorak  <ook@ucw.cz>

        * graphite.c (nb_reductions_in_loop): Update simple_iv arguments.

2009-03-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/39362
        * tree-ssa-sccvn.c (visit_use): Stores and copies from SSA_NAMEs
        that occur in abnormal PHIs should be varying.

2009-03-04  Zdenek Dvorak  <ook@ucw.cz>

        * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop):
        Extend comments.
        (simple_iv):  Take loop as an argument instead of statement.
        * tree-scalar-evolution.h (simple_iv): Declaration changed.
        * tree-ssa-loop-niter.c (number_of_iterations_exit): Update calls
        to simple_iv.
        * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev):
        Ditto.
        * tree-parloops.c (loop_parallel_p, canonicalize_loop_ivs): Ditto.
        * matrix-reorg.c (analyze_transpose): Ditto.
        * tree-data-ref.c (dr_analyze_innermost): Ditto.
        * tree-vect-analyze.c (vect_analyze_data_refs): Ditto.
        * tree-predcom.c (ref_at_iteration): Ditto.
        * tree-ssa-loop-prefetch.c (idx_analyze_ref): Ditto.

2009-03-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/39358
        * tree-ssa-structalias.c (do_sd_constraint): Fix check for
        escaped_id and callused_id.
        (solve_graph): Likewise.

2009-03-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/39339
        * tree-sra.c (try_instantiate_multiple_fields): Make it
        no longer ICE on the above.

2009-03-03  Joseph Myers  <joseph@codesourcery.com>

        * emit-rtl.c (adjust_address_1): Reduce offset to a signed value
        that fits within Pmode.

2009-03-03  Steve Ellcey  <sje@cup.hp.com>

        PR middle-end/10109
        * tm.texi (LIBCALL_VALUE): Update description.

2009-03-03  Steve Ellcey  <sje@cup.hp.com>

        PR middle-end/34443
        * doc/extend.texi (section): Update description.

2009-03-03  H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/39345
        * tree-inline.c (remapped_type): New.
        (can_be_nonlocal): Call remapped_type instead of remap_type.

2009-03-03  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/39354
        * gimplify.c (goa_stabilize_expr): Handle tcc_comparison,
        TRUTH_ANDIF_EXPR and TRUTH_ORIF_EXPR.

2009-03-03  Richard Guenther  <rguenther@suse.de>

        PR middle-end/39272
        * tree.c (tree_nonartificial_location): New function.
        * tree.h (tree_nonartificial_location): Declare.
        * builtins.c (expand_builtin_memory_chk): Provide location
        of the call location for artificial function pieces.
        (maybe_emit_chk_warning): Likewise.
        (maybe_emit_sprintf_chk_warning): Likewise.
        (maybe_emit_free_warning): Likewise.
        * expr.c (expand_expr_real_1): Likewise.

2009-03-03  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/39343
        * tree-ssa-ccp.c (maybe_fold_offset_to_address): Don't check if
        COMPONENT_REF t has ARRAY_TYPE.

2009-03-02  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/39335
        * tree-parloops.c (canonicalize_loop_ivs): Call fold_convert
        when the type precision of the induction variable should be
        larger than the type precision of nit.
        (gen_parallel_loop): Update use of canonicalize_loop_ivs.
        * graphite.c (graphite_loop_normal_form): Same.
        * tree-flow.h (canonicalize_loop_ivs): Update declaration.

2009-03-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (ST?_REG, MM?_REG): New constants.
        (*call_1_rex64_ms_sysv): Use named constants instead of magic
        numbers to describe clobbbered registers.
        (*call_value_0_rex64_ms_sysv): Ditto.
        * config/i386/mmx.md (emms): Ditto.
        (femms): Ditto.

2009-03-02  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips_mdebug_abi_name): Fix the handling
        of ABI_64.

2009-03-02  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/spu.c (TARGET_SECTION_TYPE_FLAGS): Define.
        (spu_section_type_flags): New function.

2009-03-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (CONDITIONAL_REGISTER_USAGE): Do not copy
        reg_class_contents of FLOAT_REGS into a temporary.

2009-03-02  Richard Guenther  <rguenther@suse.de>
            Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/39318
        * tree-vect-transform.c (vectorizable_call): Transfer the EH region
        information to the vectorized statement.

2009-03-01  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (CONDITIONAL_REGISTER_USAGE): Do not shadow "i"
        variable.  Use defined names instead of magic constants for REX SSE
        registers.

2009-03-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/39331
        * omp-low.c (lower_send_shared_vars): Do not receive new
        values for the reference of DECL_BY_REFERENCE parms or results.

2009-03-01  Jan Hubicka  <jh@suse.cz>

        PR debug/39267
        * tree.h (BLOCK_NONLOCALIZED_VARS, BLOCK_NUM_NONLOCALIZED_VARS,
        BLOCK_NONLOCALIZED_VAR): New macros.
        (tree_block): Add nonlocalized_vars.
        * dwarf2out.c (gen_formal_parameter_die, gen_variable_die,
        gen_decl_die): Add origin argument.  Allow generation of die with
        origin at hand only.
        (gen_member_die, gen_type_die_with_usage, force_decl_die,
        declare_in_namespace, gen_namescpace_die, dwarf2out_decl): Update use
        of gen_*.
        (gen_block_die): Fix checking for unused blocks.
        (process_scope_var): Break out from .... ; work with origins only.
        (decls_for_scope) ... here; process nonlocalized list.
        (dwarf2out_ignore_block): Look for nonlocalized vars.
        * tree-ssa-live.c (remove_unused_scope_block_p): Look for nonlocalized
        vars.
        (dump_scope_block): Dump them.
        * tree-inline.c (remap_decls): Handle nonlocalized vars.
        (remap_block): Likewise.
        (can_be_nonlocal): New predicate.
        (copy_bind_expr, copy_gimple_bind): Update use of remap_block.

2009-03-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * configure: Regenerate.

2009-03-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * optc-gen.awk: No need to duplicate option flags twice.
        Reuse help texts for duplicate options which do not have
        any.

        * gcc.c (display_help): Document --version.

        * gcc.c (main): If print_help_list and verbose_flag, ensure
        driver output comes before subprocess output.

        * optc-gen.awk: Assign all remaining fields to help string,
        space-separated, for multi-line help in *.opt.

        * doc/invoke.texi (Warning Options): -Wsync-nand is C/C++ only.
        -Wno-pedantic-ms-format is for MinGW targets only.

        * doc/options.texi (Option file format): Fix bad indentation,
        restoring dropped sentence.

2009-02-28  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (tree_function_versioning): Output debug info.

2009-02-28  Jan Hubicka  <jh@suse.cz>

        PR debug/39267
        * tree-inline.c (setup_one_parameter): Do not copy propagate
        arguments when not optimizing.

2009-02-28  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/39327
        * config/i386/sse.md (avx_addsubv8sf3): Correct item bits.
        (avx_addsubv4df3): Likewise.
        (*avx_addsubv4sf3): Likewise.
        (sse3_addsubv4sf3): Likewise.
        (*avx_addsubv2df3): Likewise.
        (sse3_addsubv2df3): Likewise.
        (avx_unpckhps256): Correct item selectors.
        (avx_unpcklps256): Likewise.
        (avx_unpckhpd256): Likewise.
        (avx_unpcklpd256): Likewise.

2009-02-28  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (expand_call_inline): Avoid duplicate declarations of
        static vars.
        (copy_arguments_for_versioning): If var is declared don't declare it.
        (tree_function_versioning): First setup substitutions and then copy
        args.

2009-02-27  Jan Hubicka  <jh@suse.cz>

        PR debug/39267
        * cgraph.h (varpool_output_debug_info): Remove.
        * cgraphunit.c (varpool_output_debug_info): Remove.
        * dwarf2out.c (deferred_locations_struct): New struct
        (deferred_locations): New type.
        (deferred_locations_list): New static var.
        (deffer_location): New function.
        (gen_variable_die): Use it.
        (decls_for_scope): Output info on local static vars.
        (dwarf2out_finish): Process deferred locations.
        * varpool.c (varpool_output_debug_info): Remove.

2009-02-27  Jan Hubicka  <jh@suse.cz>

        PR debug/39267
        * tree.h (TREE_PROTECTED): Fix comment.
        (BLOCK_HANDLER_BLOCK): Remove.
        (struct tree_block): Remove handler_block add body_block.
        (inlined_function_outer_scope_p): New.
        (is_body_block): Remove.
        * dbxout.c (dbxout_block): Remove BLOCK_HANDLER_BLOCK.
        * dwarf2out.c (is_inlined_entry_point): Remove.
        (add_high_low_attributes): Use inlined_function_outer_scope_p.
        (gen_block_die): Use is_inlined_entry_point check.  Remove body block
        code.
        * langhooks.h (struct lang_hooks): Remove no_bodu_blocks.
        * gimplify.c (gimplify_expr): Gimplify body blocks.
        * tree-ssa-live.c (remove_unused_scope_block_p): Allow removing wrapper
        block with multiple subblocks.
        (dump_scope_block): Prettier output; dump more flags and info.
        (dump_scope_blocks): New.
        (remove_unused_locals): Use dump_scope_blocks.
        * tree-flow.h (dump_scope_blocks): Declare.
        * tree-cfg.c (execute_build_cfg): Dump scope blocks.
        * stmt.c (is_body_block): Remove.
        * tree-inline.c (remap_block): Copy BODY_BLOCK info.
        * langhooks-def.h (LANG_HOOKS_NO_BODY_BLOCKS): Remove.

2009-02-27  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/39308
        * graphite.c (graphite_loop_normal_form): Do not call 
        number_of_iterations_exit from a gcc_assert.

2009-02-27  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * gcc/config/s390/s390.c: (s390_swap_cmp): Look for conditional
        jumps if COND is NULL.
        (find_cond_jump): New function.
        (s390_z10_optimize_cmp): Handling for reg-reg compares added.
        * gcc/config/s390/s390.md: Remove z10_cobra attribute value.

2009-02-26  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.h (alpha_expand_mov): Return false if
        force_const_mem returns NULL_RTX.

2009-02-26  Jan Hubicka  <jh@suse.cz>

        PR debug/39267
        * cgraph.h (varpool_output_debug_info): Remove.
        * cgraphunit.c (varpool_output_debug_info): Remove.
        * dwarf2out.c (deferred_locations_struct): New struct
        (deferred_locations): New type.
        (deferred_locations_list): New static var.
        (deffer_location): New function.
        (gen_variable_die): Use it.
        (decls_for_scope): Output info on local static vars.
        (dwarf2out_finish): Process deferred locations.
        * varpool.c (varpool_output_debug_info): Remove.

2009-02-25  H.J. Lu  <hongjiu.lu@intel.com>

        PR rtl-optimization/39241
        * jump.c (rtx_renumbered_equal_p): Remove 2 superfluous calls
        to subreg_offset_representable_p.

2009-02-25  Paolo Bonzini  <bonzini@gnu.org>

        * regmove.c (regmove_optimize): Conform to struct rtl_opt_pass
        execute function prototype.  Get f and nregs from max_reg_num
        and get_insns.  Remove the first backward pass as it's dead,
        guard the forward pass by flag_expensive_optimizations.
        (rest_of_handle_regmove): Delete.
        (pass_regmove): Replace it with regmove_optimize.

2009-02-25  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/39259
        * tree-inline.c (initialize_cfun): Remove asserts for calls_setjmp and
        alls_alloca function flags.
        (copy_bb): Set calls_setjmp and alls_alloca function flags if such
        calls are detected.

2009-02-25  Paolo Bonzini  <bonzini@gnu.org>

        * regmove.c (discover_flags_reg, flags_set_1, mark_flags_life_zones,
        flags_set_1_rtx, flags_set_1_set): Delete.
        (regmove_optimize): Do not call mark_flags_life_zones.

2009-02-24  Julian Brown  <julian@codesourcery.com>

        PR target/35965
        * config/arm/arm.c (require_pic_register): Only set
        cfun->machine->pic_reg once per function.

2009-02-24  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (Link Options): Document an easier way to pass
        options that take arguments to the GNU linker using -Xlinker and -Wl.

2009-02-24  Steve Ellcey  <sje@cup.hp.com>

        PR target/33785
        * doc/tm.texi (TARGET_C99_FUNCTIONS): Fix description.

2009-02-24  Richard Guenther  <rguenther@suse.de>

        PR debug/39285
        * dwarf2out.c (gen_enumeration_type_die): Handle CONST_DECLs.

2009-02-24  Richard Guenther  <rguenther@suse.de>
            Zdenek Dvorak  <ook@ucw.cz>

        PR tree-optimization/39233
        * tree-ssa-loop-ivopts.c (add_candidate_1): Do not except pointers
        from converting them to a generic type.

2009-02-23  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/39260
        * graphite.c (harmful_stmt_in_bb): Stop a SCoP when the basic block
        contains a condition with a real type.
        (build_scop_conditions_1): Conditions are always last_stmt of a bb.

2009-02-23  Jason Merrill  <jason@redhat.com>

        PR c++/38880
        * varasm.c (initializer_constant_valid_p) [PLUS_EXPR]: Check
        narrowing_initializer_constant_valid_p.
        (narrowing_initializer_constant_valid_p): Don't return 
        null_pointer_node for adding a pointer to itself.

2009-02-23  Jan Hubicka  <jh@suse.cz>

        PR c/12245
        * ggc.h (htab_create_ggc): Use ggc_free to free hashtable when
        resizing.

2009-02-23  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/37709
        * tree.c (block_ultimate_origin): Move here from dwarf2out.
        * tree.h (block_ultimate_origin): Declare.
        * dwarf2out.c (block_ultimate_origin): Move to tree.c
        * tree-ssa-live.c (remove_unused_scope_block_p):
        Eliminate blocks containig no instructions nor live variables nor
        nested blocks.
        (dump_scope_block): New function.
        (remove_unused_locals): Enable removal of dead blocks by default;
        enable dumping at TDF_DETAILS.

2009-02-21  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (classify_argument): Don't allow COImode
        and OImode.
        (function_arg_advance_32): Don't allow OImode.
        (function_arg_32): Likewise.
        (function_value_32): Likewise.
        (return_in_memory_32): Likewise.
        (function_arg_64): Remove OImode comment.

2009-02-21  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/39261
        * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): Use
        ix86_expand_vector_set for V4DImode in 64bit mode only.
        (ix86_expand_vector_init_one_var): Likewise.

2009-02-21  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (graphite_trans_loop_block): Adjust tile size to 51.

2009-02-21  Richard Sandiford  <rdsandiford@googlemail.com>

        PR bootstrap/39257
        * loop-iv.c: Revert last change.
        * emit-rtl.c: Likewise.

2009-02-21  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/39256
        * config/i386/i386.c (type_natural_mode): Remove an extra
        space in the warning message.
        (function_value_32): Handle 32-byte vector modes.
        (return_in_memory_32): Likewise.

2009-02-21  Richard Sandiford  <rdsandiford@googlemail.com>

        * loop-iv.c (truncate_value): New function.
        (iv_subreg, get_iv_value, iv_number_of_iterations): Use it instead
        of lowpart_subreg.
        (lowpart_subreg): Move to...
        * emit-rtl.c: ...here.

2009-02-21  Danny Smith  <dannysmith@users.sourceforge.net>

        * config/i386/winnt.c (i386_pe_asm_output_aligned_decl_common): Revert
        accidental and undocumented change at revision 140860.

2009-02-21  Joseph Myers  <joseph@codesourcery.com>

        * config/arm/arm.c (arm_gimplify_va_arg_expr): Update prototype to
        take gimple_seq * arguments.
        (arm_mangle_type): Use CONST_CAST_TREE on type argument passed to
        types_compatible_p langhook.

2009-02-20  Mark Mitchell  <mark@codesourcery.com>
            Joseph Myers  <joseph@codesourcery.com>

        * config/arm/arm.c (arm_builtin_va_list): New function.
        (arm_expand_builtin_va_start): Likewise.
        (arm_gimplify_va_arg_expr): Likewise.
        (TARGET_BUILD_BUILTIN_VA_LIST): Define.
        (TARGET_BUILD_BUILTIN_VA_START): Likewise.
        (TARGET_BUILD_BUILTIN_VA_ARG_EXPR): Likewise.
        (va_list_type): New variable.
        (arm_mangle_type): Mangle va_list_type appropriately.

2009-02-20  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/39157
        * Makefile.in (loop-invariant.o): Depend on $(PARAMS_H).
        * params.h (LOOP_INVARIANT_MAX_BBS_IN_LOOP): Define.
        * params.def (loop-invariant-max-bbs-in-loop): New parameter.
        * opts.c (decode_options): Set loop-invariant-max-bbs-in-loop
        parameter to 1000 for -O1 by default.
        * doc/invoke.texi (loop-invariant-max-bbs-in-loop): Document new
        parameter.
        * loop-invariant.c: Include params.h.
        (move_loop_invariants): Don't call move_single_loop_invariants on
        very large loops.

2009-02-20  Jaka Mocnik  <jaka@xlab.si>

        * calls.c (emit_library_call_value_1): Use slot_offset instead of
        offset when calculating bounds for indexing stack_usage_map.  Fixes
        a buffer overflow with certain target setups.

2009-02-20  Jakub Jelinek  <jakub@redhat.com>

        PR target/39240
        * calls.c (expand_call): Clear try_tail_call if caller and callee
        disagree in promotion of function return value.

2009-02-19  Jakub Jelinek  <jakub@redhat.com>

        PR target/39175
        * c-common.c (c_determine_visibility): If visibility changed and
        DECL_RTL has been already set, call make_decl_rtl to update symbol
        flags.

2009-02-19  H.J. Lu  <hongjiu.lu@intel.com>

        PR c++/39188
        * varasm.c (assemble_variable): Don't check DECL_NAME when
        globalizing a variable.

2009-02-19  Joseph Myers  <joseph@codesourcery.com>

        PR c/38483
        * builtins.c (gimplify_va_arg_expr): Evaluate the va_list
        expression before any __builtin_trap call.
        * c-typeck.c (build_function_call): Convert and check function
        arguments before generating a call to a trap.  Evaluate the
        function arguments before the trap.

2009-02-19  Uros Bizjak  <ubizjak@gmail.com>

        PR target/39228
        * config/i386/i386.md (isinfxf2): Split from isinf<mode>2.
        (UNSPEC_FXAM_MEM): New unspec.
        (fxam<mode>2_i387_with_temp): New insn and split pattern.
        (isinf<mode>2): Use MODEF mode iterator.  Force operand[1] through
        memory using fxam<mode>2_i387_with_temp to remove excess precision.

2009-02-19  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/39207
        PR tree-optimization/39074
        * tree-ssa-structalias.c (storedanything_id, var_storedanything,
        storedanything_tree): New.
        (do_ds_constraint): Simplify ANYTHING shortcutting.  Update
        the STOREDANYTHING solution if the lhs solution contains ANYTHING.
        (build_succ_graph): Add edges from STOREDANYTHING to all
        non-direct nodes.
        (init_base_vars): Initialize STOREDANYTHING.
        (compute_points_to_sets): Free substitution info after
        building the succ graph.
        (ipa_pta_execute): Likewise.

        * tree-ssa-structalias.c (struct variable_info): Add may_have_pointers
        field.
        (do_ds_constraint): Do not add to special var or non-pointer
        field solutions.
        (type_could_have_pointers): Split out from ...
        (could_have_pointers): ... here.  For arrays use the element type.
        (create_variable_info_for): Initialize may_have_pointers.
        (new_var_info): Likewise.
        (handle_lhs_call): Make the HEAP variable unknown-sized.
        (intra_create_variable_infos): Use a type with pointers for
        PARM_NOALIAS, make it unknown-sized.

2009-02-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/39224
        * config/i386/i386.c (ix86_return_in_memory): Properly check ABI.

2009-02-18  Jason Merrill  <jason@redhat.com>

        PR target/39179
        * tree-ssa-ccp.c (get_symbol_constant_value): Don't assume zero
        value if DECL_EXTERNAL.
        * tree-sra.c (sra_walk_gimple_assign): Likewise.
        * target.h (gcc_target::binds_local_p): Clarify "module".
        * tree.h (TREE_PUBLIC): Clarify "module".

2009-02-17  Xuepeng Guo  <xuepeng.guo@intel.com>

        PR target/38891
        * config/i386/i386.h (CONDITIONAL_REGISTER_USAGE): Move the hunk of
        initialization for MS_ABI prior to the hunk of !TARGET_MMX.

2009-02-17  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/39082
        * c.opt (Wabi): Support C and ObjC.
        (Wpsabi): New.

        * c-opts.c (c_common_handle_option): Handle OPT_Wabi.

        * config/i386/i386.c (classify_argument): Warn once about the ABI
        change when passing union with long double.

        * doc/invoke.texi: Update -Wabi for warning psABI changes.

2009-02-18  Joseph Myers  <joseph@codesourcery.com>

        PR c/35447
        * c-parser.c (c_parser_compound_statement): Always enter and leave
        a scope.

2009-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/34587
        * config/darwin.h (SUPPORTS_INIT_PRIORITY): Define.

2009-02-18  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/36922
        * tree-data-ref.c (initialize_matrix_A): Handle BIT_NOT_EXPR.
        * tree-scalar-evolution.c (interpret_rhs_expr, instantiate_scev_1):
        Likewise.

2009-02-17  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips_override_options): Set flag_dwarf2_cfi_asm
        to 0 for EABI64.

2009-02-17  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.md (type): Reclassify lui_movf as "unknown".

2009-02-17  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips_gimplify_va_arg_expr): Fix invalid
        tree sharing.

2009-02-17  Ruan Beihong  <ruanbeihong@gmail.com>
            Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (CODE_FOR_loongson_biadd): Delete.
        * config/mips/loongson.md (reduc_uplus_<mode>): Rename to...
        (loongson_biadd): ...this.

2009-02-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/39202
        * tree-ssa-structalias.c (do_structure_copy): Before collapsing
        a var make sure to follow existing collapses.

2009-02-17  Richard Guenther  <rguenther@suse.de>

        PR middle-end/39214
        * langhooks.c (lhd_print_error_function): Check for NULL block.

2009-02-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/39204
        * tree-ssa-pre.c (phi_translate_1): Lookup the value-number
        of the PHI arg.

2009-02-17  Uros Bizjak  <ubizjak@gmail.com>

        * config/soft-fp/double.h: Update from glibc CVS.

2009-02-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/39207
        * tree-ssa-structalias.c (find_what_p_points_to): Do not emit
        strict-aliasing warnings for pointers pointing to NULL.

2009-02-16  Joseph Myers  <joseph@codesourcery.com>

        PR c/35446
        * c-parser.c (c_parser_braced_init): Call pop_init_level when
        skipping until next close brace.

2009-02-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/37049
        * config/i386/i386.c (ix86_expand_push): Set memory alignment
        to function argument boundary.

2009-02-16  Hariharan Sandanagobalane  <hariharan@picochip.com>

        * config/picochip/picochip.md (lea_add): Allow any nonimmediate
        in the lea_add. Reload eventually constraints it properly.
        * config/picochip/constraints.md : Remove the target constraint
        "b", since it is not needed anymore.

2009-02-16  Jakub Jelinek  <jakub@redhat.com>

        * gthr-dce.h: Uglify function parameter and local variable names.
        * gthr-gnat.h: Likewise.
        * gthr-mipssde.h: Likewise.
        * gthr-nks.h: Likewise.
        * gthr-posix95.h: Likewise.
        * gthr-posix.h: Likewise.
        * gthr-rtems.h: Likewise.
        * gthr-single.h: Likewise.
        * gthr-solaris.h: Likewise.
        * gthr-tpf.h: Likewise.
        * gthr-vxworks.h: Likewise.
        * gthr-win32.h: Likewise.

2009-02-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/39196
        * config/i386/i386.md: Restrict the new peephole2 to move
        between MMX/SSE registers.

2009-02-15  Richard Guenther  <rguenther@suse.de>

        Revert
        2009-02-13  Richard Guenther  <rguenther@suse.de>

        * configure.ac: Enable LFS.
        * configure: Re-generate.
        * config.in: Likewise.

2009-02-13  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/spu_internals.h (spu_sr, spu_sra, spu_srqw,
        spu_srqwbyte, spu_srqwbytebc): Define.
        * config/spu/spu-builtins.def (spu_sr, spu_sra, spu_srqw,
        spu_srqwbyte, spu_srqwbytebc): New overloaded builtins.
        * config/spu/spu.md ("shrqbybi_<mode>", "shrqbi_<mode>",
        "shrqby_<mode>"): New insn-and-split patterns.
        * config/spu/spu.c (expand_builtin_args): Determine and return
        number of operands using spu_builtin_description data.
        (spu_expand_builtin_1): Use it.

2009-02-13  Steve Ellcey  <sje@cup.hp.com>

        PR target/38056
        * config/ia64/ia64.c (ia64_function_ok_for_sibcall): Check
        TARGET_CONST_GP.

2009-02-13  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/39149
        * config/i386/i386.c (override_options): Correct warning
        messages for -malign-loops,  -malign-jumps and -malign-functions.

2009-02-13  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/39152
        * config/i386/i386.md: Restrict the new peephole2 to move
        between the general purpose registers.

2009-02-13  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/39162
        * config/i386/i386.c (type_natural_mode): Add a new argument.
        Return the original mode and warn ABI change if vector size is 32byte.
        (function_arg_advance): Updated.
        (function_arg): Likewise.
        (ix86_function_value): Likewise.
        (ix86_return_in_memory): Likewise.
        (ix86_sol10_return_in_memory): Likewise.
        (ix86_gimplify_va_arg): Likewise.
        (function_arg_32): Don't warn ABX ABI change here.
        (function_arg_64): Likewise.

2009-02-13  Bernd Schmidt  <bernd.schmidt@analog.com>

        * loop-iv.c (implies_p): In the final case, test that operands 0
        of the two comparisons match.

        * config/bfin/bfin.c (find_prev_insn_start): New function.
        (bfin_optimize_loop): Use it in some cases instead of PREV_INSN.
        (find_next_insn_start): Move.

2009-02-13  Richard Guenther  <rguenther@suse.de>

        * configure.ac: Enable LFS.
        * configure: Re-generate.
        * config.in: Likewise.

2009-02-13  Joseph Myers  <joseph@codesourcery.com>

        PR c/35444
        * c-parser.c (c_parser_parms_list_declarator): Discard pending
        sizes on syntax error after some arguments have been parsed.

2009-02-12  Jakub Jelinek  <jakub@redhat.com>

        * doc/invoke.texi (-fira): Remove.

2009-02-12  H.J. Lu  <hongjiu.lu@intel.com>

        * caller-save.c: Replace regclass.c with reginfo.c in comments.
        * recog.c: Likewise.
        * rtl.h: Likewise.

2009-02-12  Uros Bizjak  <ubizjak@gmail.com>

        * longlong.h (sub_ddmmss): New for ia64. Ported from GMP 4.2.
        (umul_ppmm): Likewise.
        (count_leading_zeros): Likewise.
        (count_trailing_zeros): Likewise.
        (UMUL_TIME): Likewise.

2009-02-12  H.J. Lu  <hongjiu.lu@intel.com>

        * config.gcc (ia64*-*-linux*): Add ia64/t-fprules-softfp and
        soft-fp/t-softfp to tmake_file.

        * config/ia64/ia64.c (ia64_soft_fp_init_libfuncs): New.
        (ia64_expand_compare): Use HPUX library for TFmode only for HPUX.
        (ia64_builtins) [IA64_BUILTIN_COPYSIGNQ, IA64_BUILTIN_FABSQ,
        IA64_BUILTIN_INFQ]: New.
        (ia64_init_builtins): Initialize __builtin_infq,
        __builtin_fabsq and __builtin_copysignq if not HPUX.
        (ia64_expand_builtin): Handle IA64_BUILTIN_COPYSIGNQ,
        IA64_BUILTIN_FABSQ and IA64_BUILTIN_INFQ.

        * config/ia64/lib1funcs.asm (__divtf3): Define only if
        SHARED is defined.
        (__fixtfti): Likewise.
        (__fixunstfti): Likewise.
        (__floattitf): Likewise.

        * config/ia64/libgcc-glibc.ver: New.
        * config/ia64/t-fprules-softfp: Likewise.
        * config/ia64/sfp-machine.h: Likewise.

        * config/ia64/linux.h (LIBGCC2_HAS_TF_MODE): New.
        (LIBGCC2_TF_CEXT): Likewise.
        (TF_SIZE): Likewise.
        (TARGET_INIT_LIBFUNCS): Likewise.

        * config/ia64/t-glibc (SHLINB_MAPFILES):
        Add $(srcdir)/config/ia64/libgcc-glibc.ver.

2009-02-12  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (construct_container): Rewrite processing
        BLKmode with X86_64_SSE_CLASS.

2009-02-12  Paolo Bonzini  <bonzini@gnu.org>

        PR target/39152
        * config/i386/i386.md: Replace simplify_replace_rtx with
        replace_rtx in the new peephole2.

2009-02-12  Nathan Sidwell  <nathan@codesourcery.com>

        * doc/invoke.texi (Optimize Options): Stop claiming inlining and
        loop unrolling do not happen at -O2.

2009-02-12  Michael Matz  <matz@suse.de>

        * gcc.c (ASM_DEBUG_SPEC): Check for -g0.

2009-02-12  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (dwarf2out_finish): Force output of comp_unit_die
        for -g3.

2009-02-12  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/rs6000.md (allocate_stack): Use _stack form of
        patterns when updating the back chain.  Missed in the 2009-02-10
        change.

2009-02-11  Janis Johnson  <janis187@us.ibm.com>

        * doc/extend.texi (Decimal Floating Types): Update identifier of
        draft TR and list of missing support.

2009-02-11  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/39154
        * gimplify.c (omp_notice_variable): If adding GOVD_SEEN
        bit to variable length decl's flags, add it also to its
        pointer replacement variable.

2009-02-11  Uros Bizjak  <ubizjak@gmail.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR target/39118
        * config/i386/i386.md (UNSPEC_MEMORY_BLOCKAGE): New constant.
        (memory_blockage): New expander.
        (*memory_blockage): New insn pattern.
        * config/i386/i386.c (ix86_expand_prologue): Use memory_blockage
        instead of general blockage at the end of function prologue when
        frame pointer is used to access red zone area.  Do not emit blockage
        when profiling, it is emitted in generic code.
        (ix86_expand_epilogue): Emit memory_blockage at the beginning of
        function epilogue when frame pointer is used to access red zone area.

2009-02-11  Paolo Bonzini  <bonzini@gnu.org>

        PR target/38824
        * config/i386/i386.md: Add two new peephole2 to avoid mov followed
        by arithmetic with memory operands.
        * config/i386/predicates.md (commutative_operator): New.

2009-02-10  Janis Johnson  <janis187@us.ibm.com>

        * doc/extend.texi (Fixed-Point Types): Break long paragraphs into
        bulleted lists.

2009-02-10  Eric Botcazou  <ebotcazou@adacore.com>

        * alias.h (record_alias_subset): Declare.
        * alias.c (record_alias_subset): Make global.

2009-02-10  Nick Clifton  <nickc@redhat.com>

        * tree-parloops.c: Change license to GPLv3.
        * ipa-struct-reorg.c: Change license to GPLv3.
        * ipa-struct-reorg.h: Change license to GPLv3.

2009-02-10  Steve Ellcey  <sje@cup.hp.com>

        PR c/39084
        * c-decl.c (start_struct): Return NULL on error.

2009-02-10  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/39124
        * cfgloopmanip.c (remove_path): Call remove_bbs after
        cancel_loop_tree, not before it.

        PR target/39139
        * function.h (struct function): Add has_local_explicit_reg_vars bit.
        * gimplify.c (gimplify_bind_expr): Set it if local DECL_HARD_REGISTER
        VAR_DECLs were seen.
        * tree-ssa-live.c (remove_unused_locals): Recompute
        cfun->has_local_explicit_reg_vars.
        * tree-ssa-sink.c (statement_sink_location): Don't sink BLKmode
        copies or clearings if cfun->has_local_explicit_reg_vars.

2009-02-10  Uros Bizjak  <ubizjak@gmail.com>

        PR target/39118
        * config/i386/i386.c (expand_prologue): Emit blockage at the end
        of function prologue when frame pointer is used to access
        red zone area.

2009-02-10  Richard Guenther  <rguenther@suse.de>

        PR middle-end/39127
        * gimplify.c (gimple_regimplify_operands): Always look if
        we need to create a temporary.

2009-02-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/39132
        * tree-loop-distribution.c (todo): New global var.
        (generate_memset_zero): Trigger TODO_rebuild_alias.
        (tree_loop_distribution): Return todo.

2009-02-10  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/39119
        * config/i386/i386.c (x86_64_reg_class): Remove X86_64_AVX_CLASS.
        (x86_64_reg_class_name): Removed.
        (classify_argument): Return 0 if bytes > 32.  Return 0 if the
        first one isn't X86_64_SSE_CLASS or any other ones aren't
        X86_64_SSEUP_CLASS when size > 16bytes.  Don't turn
        X86_64_SSEUP_CLASS into X86_64_SSE_CLASS if the preceded one
        is X86_64_SSEUP_CLASS.  Set AVX modes to 1 X86_64_SSE_CLASS
        and 3 X86_64_SSEUP_CLASS.
        (construct_container): Remove X86_64_AVX_CLASS.  Handle 4
        registers with 1 X86_64_SSE_CLASS and 3 X86_64_SSEUP_CLASS.

2009-02-10  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/rs6000.md (allocate_stack): Always use an update
        form instruction to update the stack back chain word, even if the
        user has disabled the generation of update instructions.
        (movdi_<mode>_update_stack): New.
        (movsi_update_stack): Likewise.
        * config/rs6000/rs6000.c (rs6000_emit_allocate_stack): Likewise,
        always use an update form instruction to update the stack back
        chain word.

2009-02-09  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/38953
        * graphite.c (if_region_set_false_region): After moving a region in
        the false branch of a condition, remove the empty dummy basic block.
        (gloog): Remove wrong fix for PR38953.

2009-02-09  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/spu.c (array_to_constant): Fix (latent) wrong-code
        generation due to implicit sign extension.

2009-02-09  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/38981
        * tree-ssa-coalesce.c (add_coalesce): Cap the costs of coalesce pairs
        at MUST_COALESCE_COST-1 instead of MUST_COALESCE_COST.

2009-02-09  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35202
        * convert.c (convert_to_real): Disable (float)fn((double)x)
        to fnf(x) conversion if errno differences may occur and
        -fmath-errno is set.

2009-02-07  Anatoly Sokolov  <aesok@post.ru>

        * config/avr/avr.c (avr_mcu_t): Add ata6289 device.
        * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
        * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).

2009-02-06  Joseph Myers  <joseph@codesourcery.com>

        PR c/35434
        * c-common.c (handle_alias_attribute): Disallow attribute for
        anything not a FUNCTION_DECL or VAR_DECL.

2009-02-06  Janis Johnson  <janis187@us.ibm.com>

        PR c/39035
        * real.c (do_compare): Special-case compare of zero against
        decimal float value.

2009-02-06  Joseph Myers  <joseph@codesourcery.com>

        PR c/36432
        * c-decl.c (grokdeclarator): Don't treat [] declarators in fields
        as indicating flexible array members unless the field itself is
        being declarared as the incomplete array.

2009-02-06  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/38844
        * ipa-inline.c (try_inline): Stop inlining recursion when edge
        is already inlined.

2009-02-06  Richard Guenther  <rguenther@suse.de>

        PR middle-end/38977
        * tree-cfg.c (need_fake_edge_p): Force a fake edge for
        fork because we may expand it as __gcov_fork.

2009-02-06  Nick Clifton  <nickc@redhat.com>

        * config/m32c/m32c.h (PCC_BITFIELD_TYPE_MATTERS): Define to zero.

2009-02-06  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/35659
        * tree-ssa-sccvn.c (vn_constant_eq, vn_reference_eq, vn_nary_op_eq
        vn_phi_eq): Shortcut if hashcode does not match.
        (vn_reference_op_compute_hash): Do not call iterative_hash_expr for
        NULL operands.
        * tree-ssa-pre.c (pre_expr_hash): Look at hashcode if available,
        and avoid iterative_hash_expr.
        (FOR_EACH_VALUE_ID_IN_SET): New.
        (value_id_compare): Remove.
        (sorted_array_from_bitmap_set): Use FOR_EACH_VALUE_ID_IN_SET to
        sort expressions by value id.

2009-02-05  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/38991
        * config/sh/predicates.md (general_movsrc_operand): Don't check
        the subreg of system registers here.

2009-02-05  Jakub Jelinek  <jakub@redhat.com>

        PR c++/39106
        * cgraphunit.c (cgraph_function_versioning): Clear also DECL_VIRTUAL_P
        on the copied decl.

2009-02-05  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/39110
        * rtlanal.c (rtx_addr_can_trap_p_1): Shortcut unaligned
        addresses, not aligned ones.

2009-02-05  Daniel Berlin  <dberlin@dberlin.org>
            Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/39100
        * tree-ssa-structalias.c (do_ds_constraint): Actually do what the
        comment says and add edges.

2009-02-05  Joseph Myers  <joseph@codesourcery.com>

        PR c/35435
        * c-common.c (handle_tls_model_attribute): Ignore attribute for
        non-VAR_DECLs without checking DECL_THREAD_LOCAL_P.

2009-02-04  Tobias Grosser  <grosser@fim.uni-passau.de> 

        * graphite.c (bb_in_sese_p, sese_build_livein_liveouts_use,
        sese_build_livein_liveouts_bb, sese_build_livein_liveouts,
        register_bb_in_sese, new_sese, free_sese): Moved.
        (dot_scop_1, build_scop_loop_nests, build_loop_iteration_domains,
        outermost_loop_in_scop, build_scop_iteration_domain,
        expand_scalar_variables_ssa_name, get_vdef_before_scop,
        limit_scops): Use bb_in_sese_p instead of bb_in_scop_p.
        Use loop_in_sese_p instead of loop_in_scop_p.
        (new_graphite_bb, gloog): Do not initialize SCOP_BBS_B.
        (new_scop, free_scop): Remove SCOP_LOOP2CLOOG_LOOP and SCOP_BBS_B.
        (scopdet_basic_block_info): Fix bug in scop detection.
        (new_loop_to_cloog_loop_str, hash_loop_to_cloog_loop,
        eq_loop_to_cloog_loop): Remove.
        (nb_loops_around_loop_in_scop, nb_loop
        ref_nb_loops): Moved here...
        * graphite.h (ref_nb_loops): ... from here.
        (struct scop): Remove bbs_b bitmap and loop2cloog_loop.
        (loop_domain_dim, loop_iteration_vector_dim): Remove.
        (SCOP_BBS_B, bb_in_scop_p, loop_in_scop_p): Removed.
        * testsuite/gcc.dg/graphite/scop-19.c: New

2009-02-04  Paolo Bonzini  <bonzini@gnu.org>
            Hans-Peter Nilsson  <hp@axis.com>

        PR rtl-optimization/37889
        * rtlanal.c (rtx_addr_can_trap_p_1): Add offset and size arguments.
        Move offset handling from PLUS to before the switch.  Use new
        arguments when considering SYMBOL_REFs too.
        (rtx_addr_can_trap_p): Pass dummy offset and size.
        (enum may_trap_p_flags): Remove.
        (may_trap_p_1): Pass size from MEM_SIZE.

        PR rtl-optimization/38921
        * loop-invariant.c (find_invariant_insn): Use may_trap_or_fault_p.
        * rtl.h (may_trap_after_code_motion_p): Delete prototype.
        * rtlanal.c (may_trap_after_code_motion_p): Delete.
        (may_trap_p, may_trap_or_fault_p): Pass 0/1 as flags.

2009-02-04  H.J. Lu  <hongjiu.lu@intel.com>

        AVX Programming Reference (January, 2009)
        * config/i386/sse.md (*vpclmulqdq): New.

2009-02-04  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/38977
        PR gcov-profile/38292
        * calls.c (special_function_p): Disregard __builtin_ prefix.

2009-02-04  Hariharan Sandanagobalane  <hariharan@picochip.com>

        * config/picochip/picochip.c (GO_IF_LEGITIMATE_ADDRESS): Disallow
        non-indexable addresses even before reload.

2009-02-03  Joseph Myers  <joseph@codesourcery.com>

        PR c/29129
        * c-decl.c (grokdeclarator): Mark [*] arrays in field declarators
        as having variable size.  Do not give an error for unnamed
        parameters with [*] declarators.  Give a warning for type names
        with [*] declarators and mark them as variable size.
        * c-parser.c (c_parser_sizeof_expression): Do not give an error
        for sizeof applied to [*] type names.

2009-02-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR C++/36607
        * convert.c (convert_to_integer): Treat OFFSET_TYPE like INTEGER_TYPE.

2009-02-03  Jakub Jelinek  <jakub@redhat.com>

        * gcc.c (process_command): Update copyright notice dates.
        * gcov.c (print_version): Likewise.
        * gcov-dump.c (print_version): Likewise.
        * mips-tfile.c (main): Likewise.
        * mips-tdump.c (main): Likewise.

2009-02-03  Joseph Myers  <joseph@codesourcery.com>

        PR c/35433
        * c-typeck.c (composite_type): Set TYPE_SIZE and TYPE_SIZE_UNIT
        for composite type involving a zero-length array type.

2009-02-03  Jakub Jelinek  <jakub@redhat.com>

        PR target/35318
        * function.c (match_asm_constraints_1): Skip over
        initial optional % in the constraint.

        PR inline-asm/39059
        * c-parser.c (c_parser_postfix_expression): If fixed point is not
        supported, don't accept FIXED_CSTs.
        * c-decl.c (finish_declspecs): Error if fixed point is not supported
        and _Sat is used without _Fract/_Accum.  Set specs->type to
        integer_type_node for cts_fract/cts_accum if fixed point is not
        supported.

2009-02-02  Catherine Moore  <clm@codesourcery.com>

        * sde.h (SUBTARGET_ARM_SPEC): Don't assemble -fpic code as -mabicalls.

2009-02-02  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.h (FILE_HAS_64BIT_SYMBOLS): New macro.
        (ABI_HAS_64BIT_SYMBOLS): Use it.
        (DWARF2_ADDR_SIZE): Use it instead of ABI_HAS_64BIT_SYMBOLS.

2009-02-02  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.md (arm_addsi3): Add r/r/k alternative.

2009-02-02  Jakub Jelinek  <jakub@redhat.com>

        PR inline-asm/39058
        * recog.h (asm_operand_ok): Add constraints argument.
        * recog.c (asm_operand_ok): Likewise.  If it is set, for digits
        recurse on matching constraint.
        (check_asm_operands): Pass constraints as 3rd argument to
        asm_operand_ok.  Don't look up matching constraint here.
        * stmt.c (expand_asm_operands): Pass NULL as 3rd argument
        to asm_operand_ok.

2009-02-02  Ben Elliston  <bje@au.ibm.com>

        * doc/tm.texi (Storage Layout): Fix TARGET_ALIGN_ANON_BITFIELD and
        TARGET_NARROW_VOLATILE_BITFIELD macro names.

2009-01-31  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * doc/install.texi (hppa*-hp-hpux*): Update binutils and linker
        information.  Remove some obsolete information.  Reorganize.

        * config/pa/fptr.c: Revert license to GPL 2.
        * config/pa/milli64.S: Likewise.

2009-01-31  Dave Korn  <dave.korn.cygwin@gmail.com>

        PR target/38904
        * mkmap-flat.awk (END):  Use pe_dll command-line arg to pass
        LIBRARY name in, instead of hard-coding it.
        * config.gcc (i[34567]86-*-pe | i[34567]86-*-cygwin*):  Add an
        extra target make frag to tmake_files according to EH model.
        (i[34567]86-*-mingw* | x86_64-*-mingw*):  Likewise.
        * config/i386/t-dw2-eh, config/i386/t-sjlj-eh:  Add new target
        frags that define makefile variable EH_MODEL appropriately.
        * config/i386/cygming.h (DWARF2_UNWIND_INFO):  Add comment.
        * config/i386/cygwin.h (LIBGCC_EH_EXTN):  Define to nothing or
        to "-sjlj" according to type of EH configured.
        (LIBGCC_SONAME):  Concatenate it to shared library base name.
        * config/i386/mingw32.h (LIBGCC_EH_EXTN):  Define to "_dw2" or
        to "_sjlj" according to type of EH configured.
        (LIBGCC_SONAME):  Concatenate it to shared library base name.
        * config/i386/t-cygming (SHLIB_SONAME):  Use EH_MODEL.
        (SHLIB_LINK):  Add missing semicolon to if-else construct.
        (SHLIB_MKMAP_OPTS):  Pass library name to mkmap-flat.awk as
        string value of "pe_dll" command-line option.
        * config/i386/t-cygwin (SHLIB_EH_EXTENSION):  New helper.
        (SHLIB_SONAME):  Use it when overriding t-cygming default.
        (SHLIB_IMPLIB):  Override t-cygming default.
        (SHLIB_MKMAP_OPTS):  Pass library name to mkmap-flat.awk as
        string value of "pe_dll" command-line option.

2009-01-31  Dave Korn  <dave.korn.cygwin@gmail.com>

        PR target/38952
        * config/i386/i386.c (ix86_builtin_setjmp_frame_value): New.
        (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Override default to point at it.

2009-01-31  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38937
        * tree-ssa-structalias.c (do_sd_constraint): Do not shortcut
        computing the transitive closure.

2009-01-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/39041
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1):
        Propagate variable indices only if the types match for this stmt.

2009-01-30  Jakub Jelinek  <jakub@redhat.com>

        PR target/39013
        * c-decl.c (pop_scope): Set DECL_EXTERNAL for functions declared
        inline but never defined.

2009-01-30  Wolfgang Gellerich  <gellerich@de.ibm.com>

        * config/s390/s390.md (*insv<mode>_reg_extimm): Removed.
        (*insv_h_di_reg_extimm): New insn.
        (*insv_l<mode>_reg_extimm): New insn.

2009-01-30  Hariharan Sandanagobalane  <hariharan@picochip.com>

        * config/picochip/picochip.c (flag_conserve_stack): set
        PARAM_LARGE_STACK_FRAME and PARAM_STACK_FRAME_GROWTH to zero under
        fconserve-stack. Reduce call-overhead used by inliner.

2009-01-30  Hariharan Sandanagobalane  <hariharan@picochip.com>

        PR/38157
        * common.opt (flag_conserve_stack): Initialised to zero.

2009-01-30  Kai Tietz  <kai.tietz@onevision.com>

        PR/39002
        * config/i386/i386.c (ix86_can_use_return_insn_p): Check for nsseregs.
        (ix86_expand_epilogue): Take nsseregs in account to use proper restore
        method.

2009-01-29  H.J. Lu  <hongjiu.lu@intel.com>

        * ira-color.c (allocno_reload_assign): Update comments.
        * regmove.c (regmove_optimize): Likewise.

        * ra.h: Removed.

2009-01-29  Robert Millan  <rmh@aybabtu.com>

        * gcc/config.gcc: Recognize GNU/kOpenSolaris (*-*-kopensolaris*-gnu).
        * gcc/config/i386/kopensolaris-gnu.h: New file.  Undefine
        `MD_UNWIND_SUPPORT'.
        * gcc/config/kopensolaris-gnu.h: New file (based on kfreebsd-gnu.h).

2009-01-29  Kazu Hirata  <kazu@codesourcery.com>

        PR tree-optimization/39007
        * tree-loop-distribution.c (generate_builtin): Use
        recompute_dominator to compute the immediate dominator of the
        basic block just after the loop.

2009-01-29  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * config/i386/sol2-10.h [!HAVE_AS_IX86_DIFF_SECT_DELTA]
        (ASM_OUTPUT_DWARF_PCREL): Define.

2009-01-29  Vladimir Makarov  <vmakarov@redhat.com>

        * doc/tm.texi (TARGET_IRA_COVER_CLASSES): Modify description.
        * doc/passes.texi: Remove entries about regclass, local-alloc, and
        global.  Modify entries about regmove and IRA.

        * ra-conflict.c: Remove the file.

        * reload.c (push_reload, find_dummy_reload): Remove flag_ira.

        * tree-pass.h (pass_local_alloc, pass_global_alloc): Remove.
        (pass_regclass_init): Rename to pass_reginfo_init.

        * cfgloopanal.c (estimate_reg_pressure_cost): Remove flag_ira.

        * toplev.h (flag_ira): Remove.

        * caller-save.c (setup_save_areas): Remove flag_ira.

        * ira-color.c (ira_reuse_stack_slot, ira_mark_new_stack_slot): Ditto.

        * global.c: Remove the file.

        * opts.c: (decode_options): Remove flag_ira.

        * hard-reg-set.h (losing_caller_save_reg_set): Remove.

        * regmove.c: Modify file description.
        (find_use_as_address, try_auto_increment): Define them only if
        AUTO_INC_DEC is defined.
        (replacement_quality, replace_in_call_usage, fixup_match_1,
        stable_and_no_regs_but_for_p): Remove.
        (reg_set_in_bb): Make it static.
        (regmove_optimize): Remove flag_ira and code which worked for
        !flag_ira.

        * local-alloc.c: Remove the file.

        * common.opt (fira): Remove.

        * ira.c: Include except.h.
        (eliminable_regset): Move from global.c.
        (mark_elimination): Ditto.  Remove flag_ira.
        (reg_renumber, struct equivalence, reg_equiv, equiv_mem,
        equiv_mem_modified, validate_equiv_mem_from_store,
        validate_equiv_mem, equiv_init_varies_p, equiv_init_movable_p,
        contains_replace_regs, memref_referenced_p, memref_used_between_p,
        no_equiv, recorded_label_ref): Move from local-alloc.c.
        (update_equiv_regs): Ditto.  Make it static.
        (print_insn_chain, print_insn_chains): Move it from global.c.
        (pseudo_for_reload_consideration_p): Ditto.  Remove flag_ira.
        (build_insn_chain): Ditto.  Make it static.
        (ra_init_live_subregs): Move from ra-conflict.c.  Make it static.
        Rename to init_live_subregs.
        (gate_ira): Remove flag_ira.

        * regclass.c: Rename reginfo.c.  Change file description.
        (FORBIDDEN_INC_DEC_CLASSES): Remove.
        (reg_class_superclasses, forbidden_inc_dec_class, in_inc_dec): Remove.
        (init_reg_sets_1): Remove code for evaluation of
        reg_class_superclasses and losing_caller_save_reg_set.
        (init_regs): Remove init_reg_autoinc.
        (struct costs, costs, init_cost, ok_for_index_p_nonstrict,
        ok_for_base_p_nonstrict): Remove.
        (regclass_init): Rename to reginfo_init.  Don't initialize init_cost.
        (pass_regclass_init): Rename to pass_reginfo_init.  Modify
        corresponding entries.
        (dump_regclass, record_operand_costs, scan_one_insn,
        init_reg_autoinc, regclass, record_reg_classes, copy_cost,
        record_address_regs, auto_inc_dec_reg_p): Remove.
        (gt-regclass.h): Rename to gt-reginfo.h.

        * rtl.h (dump_global_regs, retry_global_alloc,
        build_insn_chain, dump_local_alloc, update_equiv_regs): Remove.

        * Makefile.in (RA_H): Remove.
        (OBJS-common): Remove global.o, local-alloc.o, and ra-conflict.o.
        Rename regclass.o to reginfo.o.
        (regclass.o): Rename to reginfo.o.  Rename gt-regclass.h to
        gt-reginfo.h.
        (global.o, local-alloc.o, ra-conflict.o): Remove entries.
        (GTFILES): Rename regclass.c to reginfo.c.

        * passes.c (init_optimization_passes): Remove pass_local_alloc and
        pass_global_alloc.  Rename pass_regclass_init to pass_reginfo_init.

        * reload1.c (compute_use_by_pseudos, reload, count_pseudo,
        count_spilled_pseudo, find_reg, alter_reg, delete_output_reload):
        Remove flag_ira.
        (finish_spills): Ditto.  Remove code for !flag_ira.
        
2009-01-29  Kenneth Zadeck  <zadeck@naturalbridge.com>

        PR middle-end/35854
        * doc/invoke.texi (rtl debug options): Complete rewrite.
        * auto-inc-dec.c (pass_inc_dec): Rename pass from "auto-inc-dec"
        to auto_inc_dec".
        * mode-switching.c (pass_mode_switching): Rename pass from
        "mode-sw" to "mode_sw".
        * except.c (pass_convert_to_eh_ranges): Rename pass from
        "eh-ranges" to "eh_ranges".
        * lower-subreg.c (pass_lower_subreg): Renamed pass from "subreg"
        to "subreg1".
                
        
2009-01-29  Andrey Belevantsev  <abel@ispras.ru>
            Alexander Monakov  <amonakov@ispras.ru>

        PR middle-end/38857
        * sel-sched.c (count_occurrences_1): Check that *cur_rtx is a hard
        register.
        (move_exprs_to_boundary): Change return type and pass through
        should_move from move_op.  Relax assert.  Update usage ...
        (schedule_expr_on_boundary): ... here.  Use should_move instead of
        cant_move.
        (move_op_orig_expr_found): Indicate that insn was disconnected from
        stream.
        (code_motion_process_successors): Do not call after_merge_succs
        callback if original expression was not found when traversing any of
        the branches.
        (code_motion_path_driver): Change return type.  Update prototype.
        (move_op): Update comment.  Add a new parameter (should_move).  Update
        prototype.  Set *should_move based on indication provided by
        move_op_orig_expr_found.

2009-01-28  Pat Haugen  <pthaugen@us.ibm.com>

        * doc/invoke.texi (avoid-indexed-addresses): Document new option.
        * config/rs6000/rs6000-protos.h (avoiding_indexed_address_p): Declare.
        * config/rs6000/rs6000.opt (avoid-indexed-addresses): New option.
        * config/rs6000/rs6000.c (rs6000_override_options): Default
        avoid-indexed-addresses on for Power6, off for everything else.
        (avoiding_indexed_address_p): New function.
        (rs6000_legitimize_address): Use it.
        (rs6000_legitimate_address): Likewise.
        * config/rs6000/rs6000.md (movXX_updateX): Likewise

2009-01-28  Kazu Hirata  <kazu@codesourcery.com>

        PR tree-optimization/38997
        * tree-loop-distribution.c (generate_memset_zero): Use
        POINTER_PLUS_EXPR for a pointer addition.

2009-01-28  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md (bswap<mode>2): New pattern added.

2009-01-28  Wolfgang Gellerich  <gellerich@de.ibm.com>

        * config/s390/s390.md (*tls_load_31): Added type attribute.

2009-01-28  Wolfgang Gellerich  <gellerich@de.ibm.com>

        * config/s390/s390.md: Fix a few comments.

2009-01-28  Wolfgang Gellerich  <gellerich@de.ibm.com>

        * config/s390/s390.md (*tmsi_reg): Fixed z10prop attribute.
        (*tm<mode>_full): Fixed z10prop attribute.
        (*tst<mode>_extimm): Fixed z10prop attribute.
        (*tst<mode>_cconly_extimm): Fixed z10prop attribute.
        (*tstqiCCT_cconly): Fixed z10prop attribute.
        (*cmpsi_ccu_zerohi_rlsi): Fixed z10prop attribute.
        (*movsi_larl): Fixed z10prop attribute.
        (*movsi_zarch): Fixed z10prop attribute.
        (*movsi_eas): Fixed z10prop attribute.
        (*movhi): Fixed z10prop attribute.
        (*movqi): Fixed z10prop attribute.
        (*movstrictqi): Fixed z10prop attribute.
        (*mov<mode>): Fixed z10prop attribute.
        (*movcc): Fixed z10prop attribute.
        (*sethighpartdi_64): Fixed z10prop attribute.
        (*zero_extendhi<mode>2_z10): Fixed z10prop attribute.
        (*negdi2_sign_cc): Fixed z10prop attribute.
        (*negdi2_sign): Fixed z10prop attribute.
        (*absdi2_sign_cc): Fixed z10prop attribute.
        (*absdi2_sign): Fixed z10prop attribute.
        (*negabsdi2_sign_cc): Fixed z10prop attribute.
        (*negabsdi2_sign): Fixed z10prop attribute.
        (*cmp_and_trap_signed_int<mode>): Fixed z10prop attribute.
        (*cmp_and_trap_unsigned_int<mode>): Fixed z10prop attribute.
        (doloop_si64): Fixed z10prop attribute.
        (doloop_si31): Fixed z10prop attribute.
        (doloop_long): Fixed z10prop attribute.
        (indirect_jump): Fixed z10prop attribute.
        (nop): Fixed z10prop attribute.
        (main_base_64): Fixed z10prop attribute.
        (reload_base_64): Fixed z10prop attribute.

2009-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/38740
        * reorg.c (gate_handle_delay_slots): Avoid dbr scheduling
        if !optimize.
        * config/mips/mips.c (mips_reorg): Likewise.

2009-01-28  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38926
        * tree-ssa-pre.c (add_to_value): Assert we add only expressions
        with the correct value id to a value.
        (do_regular_insertion): Use the value number of edoubleprime
        for the value number of the expr.

        Revert
        2008-08-21  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-pre.c (insert_into_preds_of_block): Before inserting
        a PHI ask VN if it is already available.
        * tree-ssa-sccvn.h (vn_phi_lookup): Declare.
        * tree-ssa-sccvn.c (vn_phi_lookup): Export.

2009-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/38934
        * tree-vrp.c (extract_range_from_assert): For LE_EXPR and LT_EXPR
        set to varying whenever max has TREE_OVERFLOW set, similarly
        for GE_EXPR and GT_EXPR and TREE_OVERFLOW min.

2009-01-28  Richard Guenther  <rguenther@suse.de>

        PR middle-end/38908
        * tree-ssa.c (warn_uninitialized_var): Do not warn for seemingly
        uninitialized aggregate uses in call arguments.

2009-01-28  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/38984
        * tree-ssa-structalias.c (get_constraints_for_1): Do not use
        the nothing_id variable if -fno-delete-null-pointer-checks.

2009-01-28  Uros Bizjak  <ubizjak@gmail.com>

        PR target/38988
        * config/i386/i386.md (set_rip_rex64): Wrap operand 1 in label_ref.
        (set_got_offset_rex64): Ditto.

2009-01-27  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/38941
        * doc/extend.texi: Improve local variable with asm reg.

2009-01-27  Adam Nemet  <anemet@caviumnetworks.com>

        * c.opt (Wpacked-bitfield-compat): Change init value to -1.
        * c-opts.c (c_common_post_options): If -W*packed-bitfield-compat
        was not supplied then set warn_packed_bitfield_compat to the
        default value of 1.
        * stor-layout.c (place_field): Check warn_packed_bitfield_compat
        against 1.

2009-01-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38503
        * cfgexpand.c (expand_gimple_basic_block): Ignore
        GIMPLE_CHANGE_DYNAMIC_TYPE during expansion.
        * tree-ssa-structalias.c (set_uids_in_ptset): Do not prune
        variables that cannot have TBAA applied.
        (compute_points_to_sets): Do not remove GIMPLE_CHANGE_DYNAMIC_TYPE
        statements.

2009-01-27  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/38969
        * calls.c (initialize_argument_information): Do not wrap complex
        arguments in SAVE_EXPR.

2009-01-26  Andreas Tobler  <a.tobler@schweiz.org>

        * config/t-vxworks (LIBGCC2_INCLUDES): Fix typo.
        (INSTALL_LIBGCC): Revert typo commit.

2009-01-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38745
        * tree-ssa-alias.c (update_alias_info_1): Exclude RESULT_DECL
        from special handling.

2009-01-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38745
        * tree-ssa.c (execute_update_addresses_taken): Do not include
        variables that cannot possibly be a register in not_reg_needs.
        Do not clear TREE_ADDRESSABLE on vars that may not become
        registers.
        * tree-ssa.c (update_alias_info_1): Include those in the set
        of addressable vars.

2009-01-26  Richard Guenther  <rguenther@suse.de>

        PR middle-end/38851
        * Makefile.in (tree-ssa-dse.o): Add langhooks.h.
        * tree-ssa-dse.c: Include langhooks.h
        (execute_simple_dse): Remove stores with zero size.

2009-01-24  Jakub Jelinek  <jakub@redhat.com>

        PR c/38957
        * c-typeck.c (c_finish_return): Handle POINTER_PLUS_EXPR the same way
        as PLUS_EXPR.

2009-01-24  Julian Brown  <julian@codesourcery.com>

        * config/arm/t-linux-eabi (LIB2FUNCS_STATIC_EXTRA): Add
        config/arm/linux-atomic.c.
        * config/arm/linux-atomic.c: New.

2009-01-24  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/linux.h (DBX_REGISTER_NUMBER): Delete.
        * config/sparc/linux64.h (DBX_REGISTER_NUMBER): Likewise.
        * config/sparc/sysv4.h (DBX_REGISTER_NUMBER): Likewise.

2009-01-24  H.J. Lu  <hongjiu.lu@intel.com>

        PR c/38938
        * c-opts.c (c_common_handle_option): Update warn_pointer_sign
        properly.

2009-01-24  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/38953
        * graphite.c (graphite_verify): Add a call to verify_loop_closed_ssa.
        (scop_adjust_phis_for_liveouts): Initialize false_i to zero.
        (gloog): Split the exit of the scop when the scop exit is a loop exit.
        (graphite_transform_loops): Only call cleanup_tree_cfg if gloog
        changed the CFG.

2009-01-24  Paul Brook  <paul@codesourcery.com>

        * config/arm/neon.md (neon_type): Move to arm.md.
        (neon_mov<VSTRUCT>): Add neon_type attribute.
        * config/arm/arm.md (neon_type): Move to here.
        (conds): Add "unconditioal" and use as default for NEON insns.

2009-01-24  Ben Elliston  <bje@au.ibm.com>

        * bitmap.h (BITMAP_FREE): Eliminate `implicit conversion from
        void *' warning from -Wc++-compat.
        * Makefile.in (dominance.o-warn): Remove.

2009-01-23  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/38932
        * fold-const.c (fold_unary_ignore_overflow): New.
        * tree.h (fold_unary_ignore_overflow): Declare.
        * tree-ssa-ccp.c (ccp_fold): Use fold_unary_ignore_overflow.
        * tree-ssa-sccvn.c (visit_reference_op_load,
        simplify_unary_expression): Likewise.

2009-01-22  Adam Nemet  <anemet@caviumnetworks.com>

        * c-decl.c (finish_struct): Move code to set DECL_PACKED after
        DECL_BIT_FIELD is alreay known.  Also inherit packed for bitfields
        regardless of their type.
        * c-common.c (handle_packed_attribute): Don't ignore packed on
        bitfields.
        * c.opt (Wpacked-bitfield-compat): New warning option.
        * stor-layout.c (place_field): Warn if offset of a field changed.
        * doc/extend.texi (packed): Mention the ABI change.
        * doc/invoke.texi (-Wpacked-bitfield-compat): Document.
        (Warning Options): Add it to the list.

2009-01-22  H.J. Lu  <hongjiu.lu@intel.com>

        * c-opts.c (c_common_post_options): Fix a typo in comments.

2009-01-22  Steve Ellcey  <sje@cup.hp.com>

        PR middle-end/38615
        * gimplify.c (gimplify_init_constructor): Fix promotion of const
        variables to static.
        * doc/invoke.texi (-fmerge-all-constants): Update description.

2009-01-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/38931
        * config/i386/i386.md (*movsi_1): Use type "mmx" for alternative 2.
        (*movdi_1_rex64): Use type "mmx" for alternative 5.

2009-01-22  Richard Earnshaw  <rearnsha@arm.com>

        * arm.h (DATA_ALIGNMENT): Align structures, unions and arrays to
        a word boundary.
        (LOCAL_ALIGNMENT): Similarly.

2009-01-22  Mark Shinwell  <shinwell@codesourcery.com>
            Joseph Myers  <joseph@codesourcery.com>

        * config/arm/arm.c (all_architectures): Add iWMMXt2 entry.
        * config/arm/arm-cores.def: New ARM_CORE entry for iWMMXt2.
        * config/arm/arm-tune.md: Regenerate.
        * doc/invoke.texi (ARM Options): Document -mcpu=iwmmxt2 and
        -march=iwmmxt2.

2009-01-22  Mark Shinwell  <shinwell@codesourcery.com>

        * config/arm/bpabi.h (SUBTARGET_EXTRA_ASM_SPEC): Bump EABI
        version number to five.

2009-01-22  Dodji Seketeli  <dodji@redhat.com>

        PR c++/38930
        * c-decl.c: (clone_underlying_type): Revert PR c++/26693 changes.
        * c-common.c (set_underlying_type): Likewise.
        (is_typedef_decl ): Likewise
        * tree.h: Likewise
        (set_underlying_type): Likewise.
        (is_typedef_type): Likewise.

2009-01-21  Vladimir Makarov  <vmakarov@redhat.com>

        PR middle-end/38587
        * ira-color.c (coalesce_spill_slots): Don't coalesce allocnos
        crossing setjmps.

2009-01-21  Dave Korn  <dave.korn.cygwin@gmail.com>

        PR bootstrap/37660
        * config/i386/cygwin.h (SHARED_LIBGCC_SPEC):  New helper macro.
        (LIBGCC_SPEC):  Don't define.
        (REAL_LIBGCC_SPEC):  Define instead, using SHARED_LIBGCC_SPEC.

2009-01-21  Uros Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/38879
        * alias.c (base_alias_check): Unaligned access via AND address can
        alias all surrounding object types except those with sizes equal
        or wider than the size of unaligned access.

2009-01-21  Dodji Seketeli  <dodji@redhat.com>

        PR c++/26693
        * c-decl.c: (clone_underlying_type): Move this ...
        * c-common.c (set_underlying_type): ... here.
        Also, make sure the function properly sets TYPE_STUB_DECL() on
        the newly created typedef variant type.
        (is_typedef_decl ): New entry point.
        * tree.h: Added a new member member_types_needing_access_check to
        struct tree_decl_non_common.
        (set_underlying_type): New entry point.
        (is_typedef_type): Likewise.

2009-01-21  Bingfeng Mei  <bmei@broadcom.com>

        * alias.c (walk_mems_1, walk_mems_2, insn_alias_sets_conflict_p):
        Check whether two instructions have memory references that
        belong to conflicting alias sets.  walk_mems_1 and walk_mems_2
        are helper functions for traversing.
        * alias.h (insn_alias_sets_confilict_p): New prototypes.
        * ddg.c (add_inter_loop_mem_dep): Call insn_alias_sets_conflict_p
        not to draw dependency edge for instructions with non-conflicting
        alias sets.

2009-01-20  Joseph Myers  <joseph@codesourcery.com>

        PR other/38758
        * longlong.h: Update copyright years.  Use soft-fp license notice.
        Sync __clz_tab declaration with glibc.

2009-01-20  Steve Ellcey  <sje@cup.hp.com>

        PR target/30687
        * doc/extend.texi (syscall_linkage): New.
        (version_id): Modify.

2009-01-20  Andrew Pinski  <andrew_pinski@playstation.sony.com>
            Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38747
        PR tree-optimization/38748
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Disable the VCE
        conversion if the base address is an indirect reference and the
        aliasing sets could cause issues.

2009-01-20  Sebastian Pop  <sebastian.pop@amd.com>

        * common.opt (fgraphite, fgraphite-identity): Add comment for 
        explaining why these options are not documented.

2009-01-20  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (stmt_simple_for_scop_p): Also handle cases when
        gimple_call_lhs is NULL.

2009-01-20  Paolo Bonzini  <bonzini@gnu.org>

        PR target/38868
        * emit-rtl.c (adjust_address_1): Make sure memref is never
        overwritten.

2009-01-20  Ben Elliston  <bje@au.ibm.com>

        * libgcov.c (__gcov_execl, __gcov_execlp, __gcov_execle): Remove
        const qualifier from arg parameter. Remove unnecessary cast to char *.
        * gcov-io.h (__gcov_execl, __gcov_execlp, __gcov_execle): Remove
        const qualifier from arg 2.

2009-01-19  Iain Sandoe  <iain.sandoe@sandoe-acoustics.co.uk>

        * config/darwin.h: Add static-libgfortran to LINK_SPEC.

2009-01-19  Vladimir Makarov  <vmakarov@redhat.com>

        PR c/38869
        * rtl.h (reinit_regs): New prototype.
        * regclass.c: Include ira.h.
        (reinit_regs): New.
        * Makefile.in (regclass.o): Add ira.h.
        * config/i386/i386.c (ix86_maybe_switch_abi): Use reinit_regs.

2009-01-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/38736
        * c-common.c (handle_aligned_attribute): Use
        ATTRIBUTE_ALIGNED_VALUE instead of BIGGEST_ALIGNMENT for
        default alignment value.

        * c-cppbuiltin.c (c_cpp_builtins): Define __BIGGEST_ALIGNMENT__.

        * defaults.h (ATTRIBUTE_ALIGNED_VALUE): New.
        * config/i386/i386.h (ATTRIBUTE_ALIGNED_VALUE): Likewise.

        * doc/extend.texi: Update __attribute__ ((aligned)).  Document
        __BIGGEST_ALIGNMENT__.

        * doc/tm.texi: Document ATTRIBUTE_ALIGNED_VALUE.

2009-01-18  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38819
        * tree-flow.h (operation_could_trap_helper_p): Declare.
        * tree-eh.c (operation_could_trap_helper_p): Export.
        * tree-ssa-sccvn.h (vn_nary_may_trap): Declare.
        * tree-ssa-sccvn.c (vn_nary_may_trap): New function.
        * tree-ssa-pre.c (insert_into_preds_of_block): Check if we
        are about to insert a possibly trapping instruction and fail
        in this case.

2009-01-18  Andreas Schwab  <schwab@suse.de>

        * doc/install.texi (Configuration): Remove obsolete paragraph
        about use of --with-gnu-ld with --with-gnu-as.

2009-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * doc/extend.texi, doc/gimple.texi, doc/invoke.texi,
        doc/md.texi, doc/sourcebuild.texi, doc/tm.texi: Fix typos.
        Follow spelling conventions.

2009-01-18  Ben Elliston  <bje@au.ibm.com>

        * bitmap.c (bitmap_obstack_alloc_stat): Adjust cast to eliminate
        C++ warning about implicit conversion from void * to struct
        bitmap_head_def *.
        (bitmap_obstack_free): Likewise for bitmap_element *.
        * Makefile.in (bitmap.o-warn): Remove.

2009-01-17  Dave Korn  <dave.korn.cygwin@gmail.com>

        * Makefile.in (BACKENDLIBS):  Reorder to match dependencies.

2009-01-17  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <tobi.grosser@amd.com>

        * graphite.c (graphite_trans_scop_block): Do not block single
        nested loops.

2009-01-16  Alexandre Oliva  <aoliva@redhat.com>

        * ebitmap.h (ebitmap_iter_init): Initialize all fields.
        * ipa-struct-reorg.c (gen_struct_type): Replace known-true
        test with assertion.

2009-01-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38835
        PR middle-end/36227
        * fold-const.c (fold_binary): Remove PTR + INT -> (INT)(PTR p+ INT)
        and INT + PTR -> (INT)(PTR p+ INT) folding.
        * tree-ssa-address.c (create_mem_ref): Properly use POINTER_PLUS_EXPR.

2009-01-16  Adam Nemet  <anemet@caviumnetworks.com>

        PR target/38554
        * expmed.c (expand_shift): With SHIFT_COUNT_TRUNCATED, don't lift
        the subreg from a lowpart subreg if it is also casting the value.

2009-01-16  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <tobi.grosser@amd.com>

        * graphite.c (compare_prefix_loops): New.
        (build_scop_canonical_schedules): Rewritten.
        (graphite_transform_loops): Move build_scop_canonical_schedules
        after build_scop_iteration_domain.

2009-01-16  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <tobi.grosser@amd.com>

        * graphite.c (add_conditions_to_domain): Add the loops to 
        the dimension of the iteration domain.  Do copy the domain
        only when it exists.
        (build_scop_conditions_1): Do not call add_conditions_to_domain.
        (add_conditions_to_constraints): New.
        (can_generate_code_stmt, can_generate_code): Removed.
        (gloog): Do not call can_generate_code.
        (graphite_transform_loops): Call add_conditions_to_constraints
        after building the iteration domain.

2009-01-16  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/38789
        * tree-ssa-threadedge.c
        (record_temporary_equivalences_from_stmts_at_dest): Ignore calls to
        __builtin_constant_p.

2009-01-16  Kenneth Zadeck  <zadeck@naturalbridge.com>

        * dce.c (delete_unmarked_insns): Reversed the order that insns are
        examined before deleting them.
        
2009-01-16  Richard Earnshaw  <rearnsha@arm.com>

        * function.c (aggregate_value_p): Correctly extract the function
        type from CALL_EXPR_FN lookup.

2009-01-16  Hariharan Sandanagobalane  <hariharan@picochip.com>

        * config/picochip/picochip.c (picochip_override_options): Revert
        CFI asm flag disable commited previously.

2009-01-15  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <tobi.grosser@amd.com>
            Jan Sjodin  <jan.sjodin@amd.com>

        * graphite.c (scan_tree_for_params): On substractions negate
        all the coefficients of the term.
        (clast_to_gcc_expression_red): New.  Handle reduction expressions
        of more than two operands.
        (clast_to_gcc_expression): Call clast_to_gcc_expression_red.
        (get_vdef_before_scop): Handle also the case of default definitions.

2009-01-15  Richard Sandiford  <rdsandiford@googlemail.com>

        * caller-save.c (add_used_regs_1, add_used_regs): New functions.
        (insert_one_insn): Use them instead of REG_DEAD and REG_INC notes.
        Also use them when walking CALL_INSN_FUNCTION_USAGE.

2009-01-15  H.J. Lu  <hongjiu.lu@intel.com>
            Joey Ye  <joey.ye@intel.com>

        PR middle-end/37843
        * cfgexpand.c (expand_stack_alignment): Don't update stack
        boundary nor check incoming stack boundary here.
        (gimple_expand_cfg): Update stack boundary and check incoming
        stack boundary here.

2009-01-15  Kenneth Zadeck  <zadeck@naturalbridge.com>

        * dce.c (find_call_stack_args, delete_unmarked_insns): Fixed comments.
        
2009-01-14  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/38245
        * calls.c (expand_call): Add stack arguments to
        CALL_INSN_FUNCTION_USAGE even for pure calls (when
        ACCUMULATE_OUTGOING_ARGS) and even for args partially passed
        in regs and partially in memory or BLKmode arguments.
        (emit_library_call_value_1): Add stack arguments to
        CALL_INSN_FUNCTION_USAGE even for pure calls (when
        ACCUMULATE_OUTGOING_ARGS).
        * dce.c: Include tm_p.h.
        (find_call_stack_args): New function.
        (deletable_insn_p): Call it for CALL_P insns.  Add ARG_STORES
        argument.
        (mark_insn): Call find_call_stack_args for CALL_Ps.
        (prescan_insns_for_dce): Walk insns backwards in bb rather than
        forwards.  Allocate and free arg_stores bitmap if needed, pass it
        down to deletable_insn_p, don't mark stores set in arg_stores
        bitmap, clear the bitmap at the beginning of each bb.
        * Makefile.in (dce.o): Depend on $(TM_P_H).

2009-01-14  Michael Meissner  <gnu@the-meissners.org>

        PR target/22599
        * config/i386/i386.c (print_operand): Add tests for 'D', 'C', 'F', 'f'
        to make sure the insn is a conditional test (bug 22599).  Reformat a
        few long lines.

2009-01-14  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/38431
        * graphite.c (get_vdef_before_scop, scop_adjust_vphi): New.
        (scop_adjust_phis_for_liveouts): Call scop_adjust_vphi.
        (gloog): Do not call cleanup_tree_cfg.
        (graphite_transform_loops): Call cleanup_tree_cfg after all 
        scops have been code generated.

2009-01-14  Basile Starynkevitch  <basile@starynkevitch.net>
        * doc/gty.texi (Invoking the garbage collector): Added new node
        and section documenting ggc_collect.

2009-01-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38826
        PR middle-end/38477
        * tree-ssa-structalias.c (emit_alias_warning): Emit the pointer
        initialization notes only if we actually emitted a warning.
        (intra_create_variable_infos): Add constraints for a result decl
        that is passed by hidden reference.
        (build_pred_graph): Mark all related variables non-direct on
        address-taking.

2009-01-14  Nick Clifton  <nickc@redhat.com>

        * ira-conflicts.c: Include addresses.h for the definition of
        base_reg_class.
        (ira_build_conflicts): Use base_reg_class instead of BASE_REG_CLASS.
        * Makefile.in: Add a dependency of ira-conflicts.o on addresses.h.

2009-01-13  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/38811
        * Makefile.in (ira-lives.o): Add except.h.

        * ira-lives.c: Include except.h.
        (process_bb_node_lives): Process can_throw_internal.

2009-01-13  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/38774
        * combine.c (simplify_set): When undoing cc_use change, don't do
        PUT_CODE on the newly created comparison, but instead put back the
        old comparison.

2009-01-13  Joseph Myers  <joseph@codesourcery.com>

        * doc/invoke.texi (ARM Options): Update lists of -mcpu and -march
        values.  Remove duplicate arm8 entry.

2009-01-13  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/38786
        * graphite.c (expand_scalar_variables_ssa_name): New, outlined from
        the SSA_NAME case of expand_scalar_variables_expr.
        Set the type of an expression to the type of its assign statement.
        (expand_scalar_variables_expr): Also gather the scalar computation
        used to index the memory access.  Do not pass loop_p.
        Fix comment.  Stop recursion on tcc_constant or tcc_declaration.
        (expand_scalar_variables_stmt): Pass to expand_scalar_variables_expr
        the gimple_stmt_iterator where it inserts new code.
        Do not pass loop_p.
        (copy_bb_and_scalar_dependences): Do not pass loop_p.
        (translate_clast): Update call to copy_bb_and_scalar_dependences.

2009-01-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.h (debug_value): Removed.
        * graphite.c (debug_value): Removed.

2009-01-13  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.c (output_move_double): Don't synthesize thumb-2
        ldrd/strd with two 32-bit instructions.

2009-01-13  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.c (struct processors): Pass for speed down into
        cost helper functions.
        (const_ok_for_op): Handle COMPARE and inequality nodes.
        (arm_rtx_costs_1): Rewrite.
        (arm_size_rtx_costs): Update prototype.
        (arm_rtx_costs): Pass speed down to helper functions.
        (arm_slowmul_rtx_costs): Rework cost calculations.
        (arm_fastmul_rtx_costs, arm_xscale_rtx_costs): Likewise.
        (arm_9e_rtx_costs): Likewise.

2009-01-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (alpha_legitimate_address_p): Explicit
        relocations of local symbols wider than UNITS_PER_WORD are not valid.
        (alpha_legitimize_address): Do not split local symbols wider than
        UNITS_PER_WORD into HIGH/LO_SUM parts.

2009-01-13  Danny Smith  <dannysmith@users.sourceforge.net>

        PR bootstrap/38580
        * gcc.c (process_command): Replace call to execvp with calls
        to pex_one and exit.

2009-01-03  Anatoly Sokolov  <aesok@post.ru>

        PR target/29141
        * config/avr/t-avr (LIB1ASMFUNCS): Add _tablejump_elpm.
        * config/avr/libgcc.S (__do_global_ctors, __do_global_dtors): Add
        variant for devices with 3-byte PC.
        (__tablejump_elpm__) : New.

2009-01-12  Jakub Jelinek  <jakub@redhat.com>

        PR c/32041
        * c-parser.c (c_parser_postfix_expression): Allow `->' in
        offsetof member-designator, handle it as `[0].'.

2009-01-12  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (pa_asm_output_mi_thunk): Use pc-relative branch to thunk
        function when not using named sections on targets with named sections
        if branch distance is less than 262132.

2009-01-12  Richard Earnshaw  <rearnsha@arm.com>

        * combine.c (combine_instructions):  Recompute
        optimize_this_for_speed_p  for each BB in the main combine loop.

2009-01-12  Tomas Bily  <tbily@suse.cz>

        PR middlend/38385
        * tree-loop-distribution.c (prop_phis): New function.
        (generate_builtin): Call prop_phis.
        * testsuite/gcc.dg/tree-ssa/pr38385.c: New file.

2009-01-12  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/38807
        * tree-ssa-reassoc.c (remove_visited_stmt_chain): Don't look at
        gimple_visited_p unless stmt is GIMPLE_ASSIGN.

2009-01-11  Adam Nemet  <anemet@caviumnetworks.com>

        * expmed.c (store_bit_field_1): Properly truncate the paradoxical
        subreg of op0 to the original op0.

2009-01-11  Laurent GUERBY  <laurent@guerby.net>

        * doc/sourcebuild.texi (Source Tree): Move up intl and fixinc.
        
2009-01-11  Markus Schoepflin  <markus.schoepflin@comsoft.de>

        PR debug/7055
        * gcc/mips-tfile.c (parse_def): Fix parsing of def strings
        starting with digits.

2009-01-10  Jakub Jelinek  <jakub@redhat.com>

        PR target/38695
        * config/arm/arm.c (arm_is_long_call_p): Don't call
        arm_function_in_section_p if decl isn't a FUNCTION_DECL.

2009-01-09  Steven Bosscher  <steven@gcc.gnu.org>

        * regrename.c (regrename_optimize): Fix dumping.
        (find_oldest_value_reg): Preserve REG_POINTER.
        (copy_hardreg_forward_1): Likewise.

2009-01-09  Diego Novillo  <dnovillo@google.com>

        * gimple.h (struct gimple_statement_base) <uid>: Document
        the restrictions on its use.
        (gimple_uid): Tidy.
        (gimple_set_uid): Tidy.

2009-01-09  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (ix86_expand_movmem, ix86_expand_setmem): Add
        zero guard even if align_bytes != 0 and count is smaller than
        size_needed.

2009-01-09  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/38495
        * ira-emit.c (print_move_list, ira_debug_move_list): New functions.
        (add_range_and_copies_from_move_list): Print all added ranges.
        Add ranges to memory optimized destination.

2009-01-09  Jakub Jelinek  <jakub@redhat.com>

        PR target/38686
        PR target/38708
        * config/i386/i386.c (override_options): Reject
        -mstringop-strategy=rep_8byte with -m32.
        (ix86_expand_movmem): For size_needed == 1 set epilogue_size_needed
        to 1.  Do count comparison against epilogue_size_needed at compile
        time even when count_exp was constant forced into register.  For
        size_needed don't jump to epilogue, instead just avoid aligning
        and invoke the body algorithm.  If need_zero_guard, add zero guard
        even if count is non-zero, but smaller than size_needed + number of
        bytes that could be stored for alignment.
        (ix86_expand_setmem): For size_needed == 1 set epilogue_size_needed
        to 1.  If need_zero_guard, add zero guard even if count is non-zero,
        but smaller than size_needed + number of bytes that could be stored
        for alignment.  Compare size_needed with epilogue_size_needed instead
        of desired_align - align, don't adjust size_needed, pass
        epilogue_size_needed to the epilogue expanders.

        PR c/35742
        * c-pretty-print.c (pp_c_expression): Handle GOTO_EXPR like BIND_EXPR.

2009-01-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (last_address): Change to unsigned.
        (update_total_code_bytes): Change argument to unsigned.  Don't
        check if insn addresses are set.
        (pa_output_function_epilogue): Set last_address to UINT_MAX if insn
        addresses are not set.
        (pa_asm_output_mi_thunk): Handle wrap when updating last_address.

2009-01-09  Nick Clifton  <nickc@redhat.com>

        * config/sh/symbian.c: Replace uses of DECL_INLINE with
        DECL_DECLARED_INLINE_P.

2009-01-09  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/38347
        * dojump.c (do_jump_by_parts_zero_rtx): Use mode instead of
        GET_MODE (op0) in operand_subword_force calls.

        PR middle-end/38771
        * fold-const.c (fold_unary): For COMPOUND_EXPR and COND_EXPR,
        fold_convert arg0 operands to TREE_TYPE (op0) first.

2009-01-08  Vladimir Makarov  <vmakarov@redhat.com>

        * params.def (ira-max-conflict-table-size): Decrease default value
        to 1000.

2009-01-08  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/37031
        * lambda-code.c (lambda_collect_parameters): Call pointer_set_destroy
        on parameter_set.
        (build_access_matrix): Reserve correct size for AM_MATRIX vector,
        allocate it using gc instead of heap, use VEC_quick_push instead of
        VEC_safe_push.
        * graphite.c (build_access_matrix): Allocate AM_MATRIX vector using gc
        instead of heap, use VEC_quick_push instead of VEC_safe_push.
        * tree-data-ref.h (struct access_matrix): Change matrix to gc
        allocated vector from heap allocated.
        * lambda.h: Add DEF_VEC_ALLOC_P for gc allocated lambda_vector.
        * tree-loop-linear.c (linear_transform_loops): Allocate nest
        vector only after perfect_loop_nest_depth call.

2009-01-08  Sebastian Pop  <sebastian.pop@amd.com>
            Jan Sjodin  <jan.sjodin@amd.com>

        PR tree-optimization/38559
        * graphite.c (debug_value, copy_constraint,
        swap_constraint_variables, scale_constraint_variable, ): New.
        (get_lower_bound, get_upper_bound): Removed.
        (graphite_trans_bb_strip_mine): Clean up this code that works
        only for constant number of iterations.  Fully copy upper and
        lower bound constraints, not only the constant part of them.
        * graphite.h (debug_value): Declared.

2009-01-08  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/37194
        * tree-vect-transform.c (vect_estimate_min_profitable_iters):
        Don't add the cost of cost model guard in prologue to scalar 
        outside cost in case of known number of iterations.

2009-01-07  Nathan Froyd  <froydnj@codesourcery.com>
            Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_legitimize_address): Check for
        non-word-aligned REG+CONST addressing.

2009-01-07  Uros Bizjak  <ubizjak@gmail.com>

        PR target/38706
        * config/alpha/alpha.c (alpha_end_function): For TARGET_ABI_OSF, call
        free_after_compilation when outputting a thunk.
        (alpha_output_mi_thunk_osf): Assert that we are processing a thunk.
        Do not call free_after_compilation here.

2009-01-07  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_target_string): Use ARRAY_SIZE.
        (ix86_valid_target_attribute_inner_p): Ditto.

2009-01-07  Jan Sjodin  <jan.sjodin@amd.com>

        PR tree-optimization/38492
        PR tree-optimization/38498
        * tree-check.c (operator_is_linear, scev_is_linear_expression): New.
        * tree-chrec.h (scev_is_linear_expression): Declared.
        * graphite.c (graphite_cannot_represent_loop_niter): New.
        (scopdet_basic_block_info): Call graphite_cannot_represent_loop_niter.
        (graphite_loop_normal_form): Use gcc_assert.
        (scan_tree_for_params): Use CASE_CONVERT.
        (phi_node_is_iv, bb_contains_non_iv_scalar_phi_nodes): New.
        (build_scop_conditions_1): Call bb_contains_non_iv_scalar_phi_nodes.
        Use gcc_assert.  Discard scops that contain unhandled cases.
        (build_scop_conditions): Return a boolean status for unhandled cases.
        (strip_mine_profitable_p): Print the loop number, not its depth.
        (is_interchange_valid): Pass the depth of the loop nest, don't
        recompute it wrongly.
        (graphite_trans_bb_block): Same.
        (graphite_trans_bb_block): Print tentative of loop blocking.
        (graphite_trans_scop_block): Do not print that the loop has been
        blocked.
        (graphite_transform_loops): Do not handle scops that contain condition
        scalar phi nodes.

2009-01-07  H.J. Lu  <hongjiu.lu@intel.com>

        AVX Programming Reference (December, 2008)
        * config/i386/avxintrin.h (_mm256_stream_si256): New.
        (_mm256_stream_pd): Likewise.
        (_mm256_stream_ps): Likewise.

        * config/i386/i386.c (ix86_builtins): Add IX86_BUILTIN_MOVNTDQ256,
        IX86_BUILTIN_MOVNTPD256 and IX86_BUILTIN_MOVNTPS256.
        (ix86_special_builtin_type): Add VOID_FTYPE_PV4DI_V4DI.
        (bdesc_special_args): Add __builtin_ia32_movntdq256,
        __builtin_ia32_movntpd256 and __builtin_ia32_movntps256.
        (ix86_init_mmx_sse_builtins): Handle VOID_FTYPE_PV4DI_V4DI.
        (ix86_expand_special_args_builtin): Likewise.

        * config/i386/sse.md (AVXMODEDI): New.
        (avx_movnt<mode>): Likewise.
        (avx_movnt<mode>): Likewise.
        (<sse>_movnt<mode>): Remove AVX support.
        (sse2_movntv2di): Likewise.

2009-01-07  Richard Guenther  <rguenther@suse.de>

        PR middle-end/38751
        * fold-const.c (extract_muldiv): Remove obsolete comment.
        (fold_plusminus_mult_expr): Undo MINUS_EXPR
        to PLUS_EXPR canonicalization for the canonicalization.

2009-01-07  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (alpha*-dec-osf*): Remove note on 32-bit
        hosted cross-compilers generating less efficient code.

2009-01-06  Richard Sandiford  <rdsandiford@googlemail.com>

        * function.h (rtl_data): Add a dbr_scheduled_p field.
        * reorg.c (dbr_schedule): Set it.
        (gate_handle_delay_slots): Check it.
        * config/mips/mips.c (mips_base_delayed_branch): Delete.
        (mips_reorg): Check flag_delayed_branch instead of
        mips_base_delayed_branch.
        (mips_override_options): Don't set mips_base_delayed_branch
        or flag_delayed_branch.

2009-01-06  Richard Sandiford  <rdsandiford@googlemail.com>

        PR rtl-optimization/38426.
        * ira.c (ira): Set current_function_is_leaf earlier.

2009-01-06  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/38722
        * combine.c (try_combine): Don't modify PATTERN (i3) and notes
        too early, only set a flag and modify after last possible
        undo_all point.

2009-01-06  Janis Johnson  <janis187@us.ibm.com>

        PR c/34252
        * ginclude/float.h: Rename DECnn_DEN to DECnn_SUBNORMAL_MIN.
        * real.c (decimal_single_format): Correct values of emin and emax.
        (decimal_double_format): Ditto.
        (decimal_quad_format): Ditto.
        * c-cppbuiltin.c (builtin_define_decimal_float_constants): Adjust
        computation of DECnn_MIN and DECnn_MAX for corrected values of
        emin and emax.  Define __DECnn_SUBNORMAL_MIN__ instead of
        __DECnn_MIN__, and adjust its computation for the corrected value
        of emin.

2009-01-06  Jan Hubicka  <jh@suse.cz>

        PR target/38744
        * config/i386/i386.c (ix86_expand_call): Use ARRAY_SIZE.

2009-01-06  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/contrib.texi (Contributors): Slightly adjust the end note.
        Add Robert Clark to the list of testers.

2009-01-06  Jan Hubicka  <jh@suse.cz>
            Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/i386.md (*msabi_syvabi): Add SSE regs clobbers.
        * config/i386/i386.c (ix86_expand_call): Add clobbers.

2009-01-06  Jan Hubicka  <jh@suse.cz>
            Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/i386.h (CONDITIONAL_CALL_USAGE): SSE regs are not used
        for w64 ABI.
        * config/i386/i386.c (struct ix86_frame): Add padding0 and nsseregs.
        (ix86_nsaved_regs): Count only general purpose regs.
        (ix86_nsaved_sseregs): New.
        (ix86_compute_frame_layout): Update nsseregs; set preferred alignment
        to 16 for w64; compute padding and size of sse reg save area.
        (ix86_emit_save_regs, ix86_emit_save_regs_using_mov): Save only
        general purpose regs.
        (ix86_emit_save_sse_regs_using_mov): New.
        (ix86_expand_prologue): Save SSE regs if needed.
        (ix86_emit_restore_regs_using_mov): Use only general purpose regs.
        (ix86_emit_restore_sse_regs_using_mov): New.
        (ix86_expand_epilogue): Save SSE regs if needed.

2009-01-06  Jan Hubicka  <jh@suse.cz>
            Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/i386.h (ACCUMULATE_OUTGOING_ARGS): Enable for MSABI
        * config/i386/i386.c (init_cumulative_args): Disallow calls of MSABI
        functions when accumulate outgoing args is off.

2009-01-06  H.J. Lu  <hongjiu.lu@intel.com>

        PR bootstrap/38742
        * ira-color.c (ira_reuse_stack_slot): Check ENABLE_IRA_CHECKING
        before using pseudos_have_intersected_live_ranges_p.

        * ira-int.h (ira_assert): Always define.

2009-01-06  H.J. Lu  <hongjiu.lu@intel.com>

        AVX Programming Reference (December, 2008)
        * config/i386/avxintrin.h (_mm_permute2_pd): Removed.
        (_mm256_permute2_pd): Likewise.
        (_mm_permute2_ps): Likewise.
        (_mm256_permute2_ps): Likewise.
        * config/i386/i386.md (UNSPEC_VPERMIL2): Likewise.
        * config/i386/sse.md (avx_vpermil2<mode>3): Likewise.

        * config/i386/i386.c (ix86_builtins): Remove
        IX86_BUILTIN_VPERMIL2PD, IX86_BUILTIN_VPERMIL2PS,
        IX86_BUILTIN_VPERMIL2PD256 and IX86_BUILTIN_VPERMIL2PS256.
        (ix86_builtin_type): Remove V8SF_FTYPE_V8SF_V8SF_V8SI_INT,
        V4DF_FTYPE_V4DF_V4DF_V4DI_INT, V4SF_FTYPE_V4SF_V4SF_V4SI_INT
        and V2DF_FTYPE_V2DF_V2DF_V2DI_INT.
        (bdesc_args): Remove __builtin_ia32_vpermil2pd,
        __builtin_ia32_vpermil2ps, __builtin_ia32_vpermil2pd256 and
        __builtin_ia32_vpermil2ps256.
        (ix86_init_mmx_sse_builtins): Updated.
        (ix86_expand_args_builtin): Likewise.

2009-01-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (output_call): Relocate non-jump insns in the delay slot of
        long absolute calls when generating PA 2.0 code.

2009-01-05  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/38583
        * params.h (IRA_MAX_CONFLICT_TABLE_SIZE): New macro.

        * params.def (ira-max-conflict-table-size): New.

        * doc/invoke.texi (ira-max-conflict-table-size): Decribe.
        
        * ira.h (ira_conflicts_p): New external definition.
        
        * ira-conflicts.c (build_conflict_bit_table): Do not build too big
        table.  Report this.  Return result of building.
        (ira_build_conflicts): Use ira_conflicts_p.  Check result of
        building conflict table.

        * ira-color.c (fast_allocation): Use num instead of ira_allocnos_num.
        (ira_color): Use ira_conflicts_p.
        
        * global.c: Include ira.h.
        (pseudo_for_reload_consideration_p, build_insn_chain): Use
        ira_conflicts_p.

        * Makefile.in (global.o): Add ira.h.
        
        * ira-build.c (mark_all_loops_for_removal,
        propagate_some_info_from_allocno): New.
        (remove_unnecessary_allocnos): Call
        propagate_some_info_from_allocno.
        (remove_low_level_allocnos): New.
        (remove_unnecessary_regions): Add parameter.  Call
        mark_all_loops_for_removal and remove_low_level_allocnos.  Pass
        parameter to remove_unnecessary_regions.
        (ira_build): Remove all regions but root if the conflict table was
        not built.  Update conflict hard regs for allocnos crossing calls.

        * ira.c (ira_conflicts_p): New global.
        (ira): Define and use ira_conflicts_p.

        * reload1.c (compute_use_by_pseudos, reload, count_pseudo,
        count_spilled_pseudo, find_reg, alter_reg, finish_spills,
        emit_input_reload_insns, delete_output_reload): Use ira_conflicts_p.
        
2009-01-06  Ben Elliston  <bje@au.ibm.com>

        * gengtype-lex.l (YY_NO_INPUT): Define.

2009-01-05  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR c/34911
        * c-common.c (handle_vector_size_attribute): Also reject
        BOOLEAN_TYPE types.

2009-01-05  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/38492
        * graphite.c (rename_map_elt, debug_rename_elt,
        debug_rename_map_1, debug_rename_map, new_rename_map_elt,
        rename_map_elt_info, eq_rename_map_elts,
        get_new_name_from_old_name, bb_in_sese_p): Moved around.
        (sese_find_uses_to_rename_use): Renamed sese_build_livein_liveouts_use.
        (sese_find_uses_to_rename_bb): Renamed sese_build_livein_liveouts_bb.
        (sese_build_livein_liveouts): New.
        (new_sese, free_sese): New.
        (new_scop): Call new_sese.
        (free_scop): Call free_sese.
        (rename_variables_from_edge, rename_phis_end_scop): Removed.
        (register_old_new_names): Renamed register_old_and_new_names.
        (register_scop_liveout_renames, add_loop_exit_phis,
        insert_loop_close_phis, struct igp,
        default_liveout_before_guard, add_guard_exit_phis,
        insert_guard_phis, copy_renames): New.
        (translate_clast): Call insert_loop_close_phis and insert_guard_phis.
        (sese_add_exit_phis_edge): Renamed scop_add_exit_phis_edge.
        (rewrite_into_sese_closed_ssa): Renamed scop_insert_phis_for_liveouts.
        (scop_adjust_phis_for_liveouts): New.
        (gloog): Call scop_adjust_phis_for_liveouts.

        * graphite.h (struct sese): Documented.  Added fields liveout,
        num_ver and livein.
        (SESE_LIVEOUT, SESE_LIVEIN, SESE_LIVEIN_VER, SESE_NUM_VER): New.
        (new_sese, free_sese, sese_build_livein_liveouts): Declared.
        (struct scop): Added field liveout_renames.
        (SCOP_LIVEOUT_RENAMES): New.

2009-01-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        PR tree-optimization/38510
        * graphite.c (recompute_all_dominators): Call mark_irreducible_loops.
        (translate_clast): Call recompute_all_dominators before
        graphite_verify.
        (gloog): Call recompute_all_dominators before graphite_verify.

2009-01-05  Harsha Jagasia  <harsha.jagasia@amd.com>
            Jan Sjodin  <jan.sjodin@amd.com>

        PR tree-optimization/38500
        * graphite.c (create_sese_edges): Call fix_loop_structure after
        splitting blocks.

2009-01-05  Joel Sherrill  <joel.sherrill@oarcorp.com>

        * config.gcc: Add m32r*-*-rtems*.
        * config/m32r/rtems.h: New file.

2009-01-05  Ben Elliston  <bje@au.ibm.com>

        * Makefile.in (.po.gmo): Use mkinstalldirs, not test -d || mkdir.
        (.po.pox): Likewise.
        (po/gcc.pot): Likewise.

2009-01-04  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.h (SECONDARY_MEMORY_NEEDED_RTX): Delete.
        (STARTING_FRAME_OFFSET): Always set to zero.

2009-01-04  Richard Sandiford  <rdsandiford@googlemail.com>

        * tree.def (LSHIFT_EXPR, RSHIFT_EXPR): Add commentary.
        * tree-cfg.c (verify_gimple_assign_binary): Allow shifts of
        fixed-point types, and vectors of the same.

2009-01-04  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/sync.md (*mb_barrier): Rename to...
        (*memory_barrier): ...this.

2009-01-04  Jonathan Wakely  <jwakely.gcc@gmail.com>

        * doc/extend.texi (Function Attributes): Move @cindex after @item
        for 'artificial' and 'flatten'. Fix grammar for 'externally_visible'
        and put in alphabetical order. Fix 'target' name and put in order.
        * doc/invoke.texi (-Wstrict-null-sentinel, -fipa-matrix-reorg): Fix
        typos.

2009-01-04  Uros Bizjak  <ubizjak@gmail.com>

        * config/s390/s390.md (UNSPEC_MB): Rename from UNSPECV_MB.
        (memory_barrier): Expand as unspec instead of unspec_volatile.
        Remove mem:BLK from insn operands.  Use Pmode scratch register.
        (*memory_barrier): Define as unspec instead of unspec_volatile.
        Use (match_dup 0) as input operand.

        * config/sparc/sparc.md (UNSPEC_MEMBAR): Rename from UNSPECV_MEMBAR.
        * config/sparc/sync.md (memory_barrier): Expand as unspec instead of
        unspec_volatile.  Remove mem:BLK from insn operands.  Use Pmode
        scratch register.  Remove operand 1.
        (*stbar): Define as unspec instead of unspec_volatile.
        Use (match_dup 0) as input operand, remove (const_int 8).
        (*membar): Define as unspec instead of unspec_volatile.
        Use (match_dup 0) as input operand, remove input operand 2.

        * config/xtensa/xtensa.md (UNSPEC_MEMW): Rename from UNSPECV_MEMW.
        (memory_barrier): Expand as unspec instead of unspec_volatile.
        Remove mem:BLK from insn operands.  Use Pmode scratch register.
        (*memory_barrier): Define as unspec instead of unspec_volatile.
        Use (match_dup 0) as input operand.

        * config/ia64/sync.md (memory_barrier): Redefine as expander pattern.
        Remove mem:BLK from insn operands.  Use Pmode scratch register.
        Set volatile flag on operand 0.
        (*memory_barrier): New insn pattern.

        * config/rs6000/sync.md (memory_barrier): Remove mem:BLK from
        insn operands.
        (*memory_barrier): Use (match_dup 0) as input operand.

        * config/mips/sync.md (memory_barrier): Redefine as expander pattern.
        Remove mem:BLK from insn operands.  Use Pmode scratch register.
        Set volatile flag on operand 0.
        (*mb_internal): New insn pattern.

        * config/alpha/sync.md (*memory_barrier): Rename from *mb_internal.

2009-01-04  Steven Bosscher  <steven@gcc.gnu.org>

        PR middle-end/38586
        * function.c (struct temp_slot): Move to the section of the file
        that deals with temp slots.  Remove field 'address'.
        (temp_slot_address_table): New hash table of address -> temp slot.
        (struct temp_slot_address_entry): New struct, items for the table.
        (temp_slot_address_compute_hash, temp_slot_address_hash,
        temp_slot_address_eq, insert_temp_slot_address): Support functions
        for the new table.
        (find_temp_slot_from_address): Rewrite to use the new hash table.
        (remove_unused_temp_slot_addresses): Remove addresses of temp
        slots that have been made available.
        (remove_unused_temp_slot_addresses_1): Call-back for htab_traverse,
        worker function for remove_unused_temp_slot_addresses.
        (assign_stack_temp_for_type): Don't clear the temp slot address list.
        Add the temp slot address to the address -> temp slot map.
        (update_temp_slot_address): Update via insert_temp_slot_address.
        (free_temp_slots): Call remove_unused_temp_slot_addresses.
        (pop_temp_slots): Likewise.
        (init_temp_slots): Allocate the address -> temp slot map, or empty
        the map if it is already allocated.
        (prepare_function_start): Initialize temp slot processing.

2009-01-04  Steven Bosscher  <steven@gcc.gnu.org>

        PR middle-end/38584
        * cfgexpand.c (estimate_stack_frame_size): Simplify the estimate:
        Calculate the size of all stack vars assuming no packing of stack
        vars will happen, replacing a quadratic algorithm with a linear one.

2009-01-03  Jakub Jelinek  <jakub@redhat.com>

        PR target/38707
        * expmed.c (store_bit_field_1): Don't modify op0 if movstrict insn
        can't be used.

2009-01-03  Diego Novillo  <dnovillo@google.com>

        * doc/contrib.texi: Update contributions.

2009-01-03  Jakub Jelinek  <jakub@redhat.com>

        PR c++/38705
        * builtins.c (fold_builtin_memory_op): Give up if either operand
        is volatile.  Set srctype or desttype to non-qualified version
        of the other type.

        PR c/38700
        * builtins.c (fold_builtin_expect): Only check DECL_WEAK for VAR_DECLs
        and FUNCTION_DECLs.

2009-01-02  Kenneth Zadeck  <zadeck@naturalbridge.com>

        PR rtl-optimization/35805
        * df-problems.c (df_lr_finalize): Add recursive call to resolve lr
        problem if fast dce is able to remove any instructions.
        * dce.c (dce_process_block): Fix dump message.
        
2009-01-02  Mark Mitchell  <mark@codesourcery.com>

        PR 33649
        * tree-ssa-pre.c (compute_antic): Correct loop bounds.

2009-01-02  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/38690
        * tree-flow.h (op_code_prio, op_prio): New prototypes.
        * tree-pretty-print.c (op_code_prio): New function.
        (op_prio): No longer static.  Use op_code_prio.
        * gimple-pretty-print.c (dump_unary_rhs, dump_binary_rhs):
        Use op_prio and op_code_prio to determine if () should be
        printed around operand(s) or not.

        * gimple-pretty-print.c (dump_unary_rhs, dump_binary_rhs,
        dump_gimple_call, dump_gimple_switch, dump_gimple_cond,
        dump_gimple_label, dump_gimple_try, dump_symbols, dump_gimple_phi,
        dump_gimple_mem_ops, dump_bb_header, dump_bb_end, pp_cfg_jump): Use
        pp_character instead of pp_string for single letter printing.

2009-01-02  Richard Sandiford  <rdsandiford@googlemail.com>

        * doc/extend.texi: Fix '#pragma GCC option' typo.

2009-01-02  Richard Guenther  <rguenther@suse.de>

        * doc/install.texi (--enable-checking): Mention different
        default for stage1.
        (--enable-stage1-checking): Document.

2009-01-01  Andrew Pinski  <pinskia@gmail.com>

        PR middle-end/30142
        * tree-cfg.c (verify_expr): Add INDIRECT_REF case.  Change MODIFY_EXPR
        case to be an error.

2009-01-02  Ben Elliston  <bje@au.ibm.com>

        * config/fp-bit.h (pack_d): Constify argument.
        * config/fp-bit.c (makenan): Constify return type. Remove casts.
        (isnan): Constify argument.
        (isinf): Likewise.
        (iszero): Likewise.
        (pack_d): Likewise.
        (_fpadd_parts): Constify return type.
        (_fpmul_parts): Likewise.
        (_fpdiv_parts): Likewise.

2009-01-01  Jakub Jelinek  <jakub@redhat.com>

        PR c/36489
        * c-typeck.c (add_pending_init): Add IMPLICIT argument.  Only
        warn about overwriting initializer with side-effects or
        -Woverride-init if !IMPLICIT.
        (output_init_element): Likewise.  Pass IMPLICIT down to
        add_pending_init.
        (process_init_element): Add IMPLICIT argument.  Pass it down
        to output_init_element.
        (push_init_element, pop_init_level, set_designator): Adjust
        process_init_element callers.
        (set_nonincremental_init, set_nonincremental_init_from_string):
        Adjust add_pending_init callers.
        (output_pending_init_elements): Adjust output_init_element callers.
        * c-tree.h (process_init_element): Adjust prototype.
        * c-parser.c (c_parser_initelt, c_parser_initval): Adjust
        process_init_element callers.