Also apply the insn to prefetch ratio heuristic to loops with known trip count.

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

2010-05-17  Changpeng Fang  <changpeng.fang@amd.com>

        * doc/invoke.texi: Update documentation for min-insn-to-prefetch-ratio.
        * tree-ssa-loop-prefetch.c (is_loop_prefetching_profitable): Also apply
        the insn to prefetch ratio heuristic to loops with known trip count.

2010-05-17  Changpeng Fang  <changpeng.fang@amd.com>

        * tree-ssa-loop-prefetch.c (PREFETCH_MOD_TO_UNROLL_FACTOR_RATIO): New.
        (schedule_prefetches): Do not generate a prefetch if the unroll factor
        is far from what is required by the prefetch.

2010-05-17  Jan Hubicka  <jh@suse.cz>

        * ipa-cp.c (ipcp_update_callgraph): Use ipa_is_param_used.
        (ipcp_estimate_growth): Likewise.
        (ipcp_const_param_count): Likewise.
        (ipcp_insert_stage): Likewise.
        * ipa-prop.c (visit_load_for_mod_analysis): New function.
        (visit_store_addr_for_mod_analysis): Set used flag.
        (ipa_detect_param_modifications): Set used flag for SSE params;
        update use of walk_stmt_load_store_addr_ops.
        (ipa_print_node_params): Print used flag.
        (ipa_write_node_info): Stream used flag.
        (ipa_read_node_info): Likewise.
        * ipa-prop.h (struct ipa_param_descriptor): Add used field.
        (ipa_is_param_used): New function.
        (lto_ipa_fixup_call_notes): Remove unused declaration.

2010-05-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR target/44074
        * configure.ac (HAVE_AS_IX86_REP_LOCK_PREFIX): New test.
        * configure: Regenerate.
        * config.in: Regenerate.
        * config/i386/i386.c (print_operand) <case ;>: Also print ; if
        !HAVE_AS_IX86_REP_LOCK_PREFIX.
        Don't emit whitespace.
        * config/i386/i386.md (*rep_movdi_rex64): Use {%;} after rep.
        (*rep_movsi): Likewise.
        (*rep_movsi_rex64): Likewise.
        (*rep_movqi): Likewise.
        (*rep_movqi_rex64): Likewise.
        (*rep_stosdi_rex64): Likewise.
        (*rep_stossi): Likewise.
        (*rep_stossi_rex64): Likewise.
        (*rep_stosqi): Likewise.
        (*rep_stosqi_rex64): Likewise.
        (*cmpstrnqi_nz_1): Use {%;} after repz.
        (*cmpstrnqi_nz_rex_1): Likewise.
        (*cmpstrnqi_1): Likewise.
        (*cmpstrnqi_rex_1): Likewise.
        (*strlenqi_1): Use {%;} after repnz.
        (*strlenqi_rex_1): Likewise.
        * config/i386/sync.md (memory_barrier_nosse): Replace {%;| } by {%;} .
        (*sync_compare_and_swap<mode>): Likewise.
        (sync_double_compare_and_swap<mode>): Likewise.
        (*sync_double_compare_and_swapdi_pic): Likewise.
        (sync_old_add<mode>): Likewise.
        (sync_add<mode>): Likewise.
        (sync_sub<mode>): Likewise.
        (sync_<code><mode>): Likewise.

2010-05-17  Martin Jambor  <mjambor@suse.cz>

        * cgraph.h (cgraph_indirect_call_info): New fields anc_offset,
        otr_token and polymorphic.
        * cgraph.c (cgraph_create_indirect_edge): Inilialize the above fields.
        (cgraph_clone_edge): Copy the above fields.
        * tree.c (get_binfo_at_offset): New function.
        * tree.h (get_binfo_at_offset): Declare.
        * ipa-prop.h (enum jump_func_type): Added known_type jump function
        type, reordered items, updated comments.
        (union jump_func_value): Added base_type field, reordered fields.
        (enum ipa_lattice_type): Moved down in the file.
        (struct ipa_param_descriptor): New field polymorphic.
        (ipa_is_param_polymorphic): New function.
        * ipa-prop.c: Include gimple.h and gimple-fold.h.
        (ipa_print_node_jump_functions): Print known type jump functions.
        (compute_complex_pass_through): Renamed to...
        (compute_complex_assign_jump_func): this.
        (compute_complex_ancestor_jump_func): New function.
        (compute_known_type_jump_func): Likewise.
        (compute_scalar_jump_functions): Create known type and complex ancestor
        jump functions.
        (ipa_note_param_call): New parameter polymorphic, set the corresponding
        flag in the call note accordingly.
        (ipa_analyze_call_uses): Renamed to...
        (ipa_analyze_indirect_call_uses): this.  New parameter target, define
        variable var only in the block where it is used.
        (ipa_analyze_virtual_call_uses): New function.
        (ipa_analyze_call_uses): Likewise.
        (combine_known_type_and_ancestor_jfs): Likewise.
        (update_jump_functions_after_inlining): Implemented handling of a
        number of new jump function types combination.
        (print_edge_addition_message): Removed.
        (make_edge_direct_to_target): New function.
        (try_make_edge_direct_simple_call): Likewise.
        (try_make_edge_direct_virtual_call): Likewise.
        (update_call_notes_after_inlining): Renamed to...
        (update_indirect_edges_after_inlining): this.  Moved edge creation for
        indirect calls to try_make_edge_direct_simple_call, also calls
        try_make_edge_direct_virtual_call for virtual calls.
        (ipa_print_node_params): Changed the header message.
        (ipa_write_jump_function): Stream also known type jump functions.
        (ipa_read_jump_function): Likewise.
        (ipa_write_indirect_edge_info): Stream new fields in
        cgraph_indirect_call_info.
        (ipa_read_indirect_edge_info): Likewise.
        * Makefile.in (ipa-prop.o): Add dependency to GIMPLE_H and
        GIMPLE_FOLD_H.

2010-05-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/i386/sol2.h (TARGET_SUN_TLS): Remove duplicate definition.

2010-05-17  Nathan Froyd  <froydnj@codesourcery.com>

        * tree.h (CALL_EXPR_ARGS): Delete.
        (call_expr_arglist): Delete.
        * tree.c (call_expr_arglist): Delete.
        * builtins.c (fold_call_expr): Pass the whole CALL_EXPR to
        targetm.fold_builtin.
        * config/alpha/alpha.c (alpha_fold_builtin): Rename arglist parameter.
        Rewrite iteration to work on call_expr_nargs rather than TREE_CHAIN.
        * config/picochip/picochip.c (picochip_expand_builtin_2op): Rename
        arglist parameter.  Use CALL_EXPR_ARG.
        (picochip_expand_builtin_3op): Likewise.
        (picochip_expand_builtin_2opvoid): Likewise.
        (picochip_expand_array_get): Likewise.
        (picochip_expand_array_put): Likewise.
        (picochip_expand_array_testport): Likewise.
        (picochip_expand_builtin): Don't call CALL_EXPR_ARGS.  Pass exp
        rather than arglist.
        * config/rx/rx.c (rx_expand_builtin): Call call_expr_nargs instead of
        CALL_EXPR_ARGS.
        * config/sparc/sparc.c (sparc_fold_builtin): Use CALL_EXPR_ARG rather
        than TREE_VALUE and TREE_CHAIN.
        * config/xtensa/xtensa.c (xtensa_fold_builtin): Likewise.
        * doc/tm.texi (TARGET_FOLD_BUILTIN): Pass CALL_EXPR tree instead of
        the arglist.

2010-05-17  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/42347
        * cfglayout.c (fixup_reorder_chain): Allow returnjump_p
        to have no fallthru edge.

        PR middle-end/44102
        * cfgcleanup.c (try_optimize_cfg): When removing trivially empty
        bb with no successors, move footer whenever in IR_RTL_CFGLAYOUT
        mode, not just when CLEANUP_CFGLAYOUT, and when in IR_RTL_CFGRTL
        add BARRIER after previous bb if needed.

2010-05-17  Nathan Froyd  <froydnj@codesourcery.com>
 
        * tree.c (build_function_type_list_1): Remove bogus assert condition.
 
2010-05-17  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_emit_allocate_stack): Delete
        unnecessary prototype.  Replace copy_r12 and copy_r11 flag params
        with copy_reg rtx param.
        (rs6000_emit_prologue): Update rs6000_emit_allocate_stack calls.
        Correct cases where code for ABI_V4 did not initialise the reg
        used to access frame.  Also leave frame_reg_rtx as sp for large
        frames that save no regs.

2010-05-17  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/44133
        * tree-sra.c (create_access_replacement): New parameter rename, mark
        the replaement for renaming only when it is true.
        (get_access_replacement): Pass true in the rename parameter of
        create_access_replacement.
        (get_unrenamed_access_replacement): New function.
        (replace_uses_with_default_def_ssa_name): New parameter racc, get the
        replacement declaration from it.

2010-05-17  Bernd Schmidt  <bernds@codesourcery.com>

        * function.c (try_fit_stack_local, add_frame_space): New static
        functions.
        (assign_stack_local_1): Use them.  Look for opportunities to use
        space previously wasted on alignment.
        * function.h (struct frame_space): New.
        (struct rtl_data): Add FRAME_SPACE_LIST member.
        * reload1.c (something_was_spilled): New static variable.
        (alter_reg): Set it.
        (reload): Test it in addition to testing if the frame size changed.

2010-05-17  Christian Borntraeger  <borntraeger@de.ibm.com>

        * config/s390/s390.c: Define sane prefetch settings and activate
        flag_prefetch_loop_arrays on -O3.
        * config/s390/s390.h: Declare that read can use write prefetch.

2010-05-17  Jakub Jelinek  <jakub@redhat.com>

        * lto-streamer-out.c (lto_output): Fix --enable-checking=release
        build.

2010-05-16  Jan Hubicka  <jh@suse.cz>

        * ipa-cp.c (ipcp_versionable_function_p): Walk cgraph edges instead of
        function body; do not check stdarg field of struct function.

2010-05-16  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (dump_cgraph_node): Dump versionable flag.
        * cgraph.h (cgraph_local_info): Add versionable flag.
        * ipa-cp.c (ipcp_analyze_node): Set versionable flag.
        (ipcp_versionable_function_p): Use it.
        * lto-cgraph.c (lto_output_node, input_overwrite_node): Stream
        versionable flag.

2010-05-16  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_clone_node): Take decl argument and insert
        clone into hash when it is different from orig.
        (cgraph_create_virtual_clone): Update use of cgraph_clone_node.
        * cgraph.h (cgraph_clone_node): Update prototype.
        * lto-cgrpah.c (lto_cgraph_encoder_new): Create body map.
        (lto_cgraph_encoder_delete): Delete body map.
        (lto_cgraph_encoder_size): Move to header.
        (lto_cgraph_encoder_encode_body_p,
        lto_set_cgraph_encoder_encode_body): New.
        (lto_output_node): Do not take written_decls argument; output clone_of
        pointer.
        (add_node_to): Add include_body_argument; call
        lto_set_cgraph_encoder_encode_body on master of the clone.
        (add_references): Update use of add_node_to.
        (compute_ltrans_boundary): Likewise.
        (output_cgraph): Do not create written_decls bitmap.
        (input_node): Take nodes argument; stream in clone_of correctly.
        (input_cgraph_1): Update use of input_node.
        * lto-streamer-out.c (lto_output): Use encoder info to decide
        what bodies to output.
        * ipa-inline.c (cgraph_clone_inlined_nodes,
        cgraph_decide_recursive_inlining): Update call of cgraph_clone_node.
        * lto-streamer.h (lto_cgraph_encoder_d): Add body.
        (lto_cgraph_encoder_size): Define here.
        (lto_cgraph_encoder_encode_body_p, lto_varpool_encoder_encode_body_p):
        Declare.

2010-05-16  Richard Guenther  <rguenther@suse.de>

        * doc/invoke.texi (-fipa-struct-reorg): Do not mention
        -fipa-type-escape.
        * ipa-type-escape.c (gate_type_escape_vars): Run when
        -fipa-struct-reorg runs.
        * opts.c (decode_options): Do not unset flag_ipa_type_escape.
        * common.opt (fipa-type-escape): Remove.

2010-05-16  Eric Botcazou  <ebotcazou@adacore.com>

        * opts.c (handle_option): Call into LTO streamer only if ENABLE_LTO.
        (decode_options): Likewise.
        * Makefile.in (opts.o): Add dependency on LTO_STREAMER_H.

2010-05-16  Jan Hubicka  <jh@suse.cz>

        * ipa.c (function_and_variable_visibility): Also bring local all
        aliases.

2010-05-16  Richard Guenther  <rguenther@suse.de>

        * alias.c (nonoverlapping_memrefs_p): Remove use of
        IPA type-escape information.

2010-05-16  Joseph Myers  <joseph@codesourcery.com>

        * c-common.c (c_common_reswords): Add _Static_assert for C.
        * c-parser.c (c_token_starts_declaration,
        c_parser_next_token_starts_declaration,
        c_parser_static_assert_declaration_no_semi,
        c_parser_static_assert_declaration): New.
        (c_parser_declaration_or_fndef): Add parameter static_assert_ok.
        Handle static assertions if static_assert_ok.
        (c_parser_external_declaration, c_parser_declaration_or_fndef,
        c_parser_compound_statement_nostart, c_parser_label,
        c_parser_for_statement, c_parser_objc_methodprotolist,
        c_parser_omp_for_loop): All callers of
        c_parser_declaration_or_fndef changed.
        (c_parser_struct_declaration): Handle static assertions.
        (c_parser_compound_statement_nostart): Use
        c_parser_next_token_starts_declaration and
        c_token_starts_declaration to detect start of declarations.
        (c_parser_label, c_parser_for_statement, c_parser_omp_for_loop):
        Likewise.

2010-05-16  Anatoly Sokolov  <aesok@post.ru>

        * config/mmix/mmix.h (FUNCTION_VALUE, FUNCTION_OUTGOING_VALUE,
        LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P): Remove macros.
        * config/mmix/mmix.c (TARGET_FUNCTION_VALUE, TARGET_LIBCALL_VALUE,
        TARGET_FUNCTION_VALUE_REGNO_P): Define.
        (mmix_function_outgoing_value): Rename to...
        (mmix_function_value): ...this. Make static. Add 'outgoing' argument.
        (mmix_function_value_regno_p): Make static.
        (mmix_libcall_value): New function.
        * config/mmix/mmix-protos.h (mmix_function_outgoing_value,
        mmix_function_value_regno_p): Remove declaration.

2010-05-16  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (build_common_builtin_nodes): Always clear TREE_NOTHROW on
        BUILT_IN_ALLOCA if stack checking is enabled.

2010-05-16  Richard Guenther  <rguenther@suse.de>

        * var-tracking.c (vars_copy_1): Inline ...
        (vars_copy): ... here.  Use FOR_EACH_HTAB_ELEMENT.
        (variable_union): Use FOR_EACH_HTAB_ELEMENT.  Merge asserts.
        (variable_merge_over_cur): Adjust.  Merge asserts.
        (variable_merge_over_src): Likewise.
        (dataflow_set_merge): Use FOR_EACH_HTAB_ELEMENT.
        (variable_post_merge_new_vals): Merge asserts.
        (variable_post_merge_perm_vals): Likewise.
        (find_mem_expr_in_1pdv): Likewise.
        (dataflow_set_different_value): Remove.
        (onepart_variable_different_p): Merge asserts.
        (variable_different_p): Likewise.
        (dataflow_set_different_1): Inline ...
        (dataflow_set_different): ... here.  Use FOR_EACH_HTAB_ELEMENT.
        (emit_notes_for_differences_1): Merge asserts.

2010-05-16  Richard Guenther  <rguenther@suse.de>

        * lto-symtab.c (lto_symtab_entry_hash): Use IDENTIFIER_HASH_VALUE.
        * optabs.c (libfunc_decl_hash): Likewise.
        * varasm.c (emutls_decl): Likewise.

2010-05-16  Steven Bosscher  <steven@gcc.gnu.org>

        * c-decl.c: Don't include gimple.h.
        (merge_decls): Do not copy gimple_body.

2010-05-15  Jason Merrill  <jason@redhat.com>

        * c.opt: Add -fnothrow-opt.

2010-05-15  Jan Hubicka  <jh@suse.cz>

        * ipa-prop.c (ipa_prop_read_section): Add sanity check that node is
        analyzed.
        * passes.c (ipa_write_summaries): Write all analyzed nodes.

2010-05-15  Steven Bosscher  <steven@gcc.gnu.org>

        * vecir.h: New file with VEC primitives for tree, gimple, and rtl.
        * Makefile.in: Add it.
        Fix all other Makefile dependencies for changes below.
        * tree.h: Include it instead of defining VEC primitives here.
        * gimple.h: Likewise.
        * rtl.h: Likewise.
        * tree-inline.h: Inlclude vecir.h instead of gimple.h.
        * except.h: Include vecir.h, break dependence on tree.h.

        * gimplify.c (append_to_statement_list_1, append_to_statement_list):
        Move from here...
        * tree-iterator.c: ...to here.
        * tree-iterator.h: Fix file introduction comment.  Add extern markers.

        * c-lex.c: Include fixed-value.h instead of rtl.h.  Do not include
        tm_p.h.
        * c-cppbuiltin.c: Explain why debug.h and tm_p.h are included.
        * c-objc-common.h: Do not include tm.h, rtl.h, insn-config.h,
        integrate.h, function.h, toplev.h, tree-inline.h, ggc.h,
        tree-mudflap.h, and target.h.
        * c-semantics.c: Do not include except.h, ggc.h, rtl.h, timevar.h,
        predict.h, tree-inline.h, gimple.h, and langhooks.h.
        * c-decl.c: Do not include expr.h, ggc.h, libfuncs.h, except.h.
        Add FIXME for why gimple.h is still included (should be unnecessary
        since GCC 4.5 gimplification unit-at-a-time).
        * c-typeck.c: Do not include rtl.h, tm_p.h, ggc.h, and gimple.h.
        * c-pragma.c: Add FIXME for why function.h needs to be included just
        for cfun, at front-end level.
        Add note that REGISTER_TARGET_PRAGMAS should probably be a target hook.
        Do not include ggc.h, but include vecprim.h for VEC(char).
        * c-opts.c: Do not include tm.h, tree-inline.h, and tm_p.h.
        Explain why target.h is included.
        * c-omp.h: Do not include tm.h, function.h, and bitmap.h.
        Explain why gimple.h is included.
        * c-ppoutput.c: Do not include tm.h.
        * c-common.c: Do not include gimple.h.  Explain why expr.h is included.
        * c-parses.c: Explain why rtl.h is included, and that this (and only
        this) is also why tm.h must be included.
        Do not include except.h.
        * c-lang.c: Do not include ggc.h.

2010-05-15  Uros Bizjak  <ubizjak@gmail.com>

        * targhooks.c (GO_IF_MODE_DEPENDENT_ADDRESS): Use CONST_CAST_RTX.

2010-05-15  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (grokfield): Allow typedefs for anonymous structs and
        unions by default if those structs and unions have no tags.  Do
        not condition anonymous struct and unions handling on flag_iso.
        Allow anonymous structs and unions for C1X.
        (finish_struct): Do not diagnose lack of named fields when
        anonymous structs and unions present for C1X.  Accept flexible
        array members in structure with anonymous structs or unions but no
        directly named fields.
        * doc/extend.texi (Unnamed Fields): Update.

2010-05-15  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple.h (compare_field_offset): Rename into...
        (gimple_compare_field_offset): ...this.
        * gimple.c (compare_field_offset): Rename into...
        (gimple_compare_field_offset): ...this.  Compare the full access if
        the offset is self-referential.
        (gimple_types_compatible_p): Adjust for above renaming.
        * lto-streamer-in.c (input_gimple_stmt): Likewise.  Also compare the
        DECL_NONADDRESSABLE_P flag of fields before merging them.

2010-05-15  Nathan Froyd  <froydnj@codesourcery.com>

        * tree.h (ctor_to_list): Delete.
        * tree.c (ctor_to_list): Delete.

2010-05-15  Jan Hubicka  <jh@suse.cz>

        * ipa-reference.c: Include toplev.h
        (is_proper_for_analysis): Only add to all_module_statics
        if it is allocated.
        (write_node_summary_p, stream_out_bitmap,
        ipa_reference_write_optimization_summary,
        ipa_reference_read_optimization_summary): New.
        (struct ipa_opt_pass_d pass_ipa_reference): Add
        optimization summary streaming.
        * lto-cgraph.c (referenced_from_this_partition_p,
        reachable_from_this_partition_p): New functions.
        * tree-ssa-alias.c (ref_maybe_used_by_call_p_1,
        call_may_clobber_ref_p_1): Ask ipa-reference even for public vars.
        * opts.c (decode_options): Enable ipa_reference.
        * Makefile.in (ipa-reference.o): Add toplev.h dependency.
        * lto-streamer.h (referenced_from_this_partition_p,
        reachable_from_this_partition_p): Declare.

2010-05-15  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/44038
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Avoid
        taking the address of a V_C_E of a constant.

2010-05-14  Jan Hubicka  <jh@suse.cz>

        * tree.h (memory_identifier_string): Remove.
        * ipa-reference.c: Update comment; do not include gt-ipa-reference.h
        (ipa_reference_global_vars_info_d): Remove statics_not_read and
        statics_not_written.
        (ipa_reference_optimization_summary_d): New structure.
        (ipa_reference_optimization_summary_t): New type and vector.
        (ipa_reference_vars_info_d): Embedd structures instead of using
        pointers.
        (reference_vars_to_consider): Remove out of GGC space.
        (module_statics_escape): Remove.
        (global_info_obstack): Rename to ...
        (optimization_summary_obstack): ... this one.
        (initialization_status_t): Remove.
        (memory_identifier_string): Remove.
        (get_reference_vars_info): Fix indenting.
        (set_reference_vars_info): Likewise.
        (get_reference_optimization_summary): New.
        (set_reference_optimization_summary): New.
        (get_global_reference_vars_info): Remove.
        (ipa_reference_get_read_global): Remove.
        (ipa_reference_get_written_global): Remove.
        (ipa_reference_get_not_read_global): Update.
        (ipa_reference_get_not_written_global): Update.
        (is_proper_for_analysis): Outlaw addressable.
        (propagate_bits): Update for new datastructures.
        (analyze_variable): Remove.
        (init_function_info): Update for new datastructures.
        (clean_function_local_data): Remove.
        (clean_function): Remove.
        (copy_global_bitmap): Use optimizations_summary_obstack.
        (duplicate_node_data): Duplicate optimization summary only.
        (remove_node_data): Remove optimization summary only.
        (generate_summary): Do not analyze variables; do not compute
        module_statics_escape; do not prune solutions by it.
        (read_write_all_from_decl): Fix typos in comments.
        (propagate): Doscover readonly and nonaddressable first;
        update for new datastructures; share global bitmaps.
        * ipa-reference.h (ipa_reference_get_read_global,
        ipa_reference_get_written_global): Remove.
        * ipa-pure-const.c (check_stmt): Do not use memory_identifier_string.
        * Makefile.in: Remove ipa-refereference from GT files.

2010-05-14  Jakub Jelinek  <jakub@redhat.com>

        PR debug/44112
        * dwarf2out.c (resolve_one_addr): Check TREE_ASM_WRITTEN
        for all SYMBOL_REF_DECLs.

2010-05-14  Jan Hubicka  <jh@suse.cz>

        * cgraph.h (ipa_discover_readonly_nonaddressable_vars): Declare.
        (varpool_all_refs_explicit_p): New inline function.
        * ipa-reference.c: Update comment.
        (module_statics_written): Remove.
        (get_static_decl): Remove.
        (ipa_init): Do not initialize module_statics_written.
        (analyze_function): Likewise.
        (generate_summary): Likewise; do not compute module_statics_readonly
        and do not update variable flags.
        (propagate): Call ipa_discover_readonly_nonaddressable_vars.
        * ipa.c: Inlucde flags.h
        (cgraph_local_node_p): New.
        (cgraph_remove_unreachable_nodes): Return early when not optimizing;
        promote functions to local.
        (ipa_discover_readonly_nonaddressable_vars): New function.
        (function_and_variable_visibility): Use cgraph_local_node_p.
        * varpool.c (varpool_finalize_decl): Set force_output for
        DECL_PRESERVE_P vars.

2010-05-14  Jan Hubicka  <jh@suse.cz>

        * ipa.c (cgraph_remove_unreachable_nodes): Revert accidental commit.

2010-05-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/44119
        * tree-ssa-pre.c (eliminate): Properly mark replacement of
        a PHI node necessary.

2010-05-14  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.h (TREE_ADDRESSABLE): Remove bogus usage for FIELD_DECL.

2010-05-14  Jason Merrill  <jason@redhat.com>

        PR c++/44127
        * gimple.h (enum gf_mask): Add GF_CALL_NOTHROW.
        (gimple_call_set_nothrow): New.
        * gimple.c (gimple_build_call_from_tree): Call it.
        (gimple_call_flags): Set ECF_NOTHROW from GF_CALL_NOTHROW.

        PR c++/44127
        * gimplify.c (gimplify_seq_add_stmt): No longer static.
        * gimple.h: Declare it.
        * gimple.c (gimple_build_eh_filter): No ops.

2010-05-14  Jan Hubicka  <jh@suse.cz>

        * ipa.c (enqueue_cgraph_node): Update comment; do not re-enqueue
        nodes already in queue.
        (cgraph_remove_unreachable_nodes): Cleanup; fix problem with
        re-enqueueing node.

2010-05-14  Jakub Jelinek  <jakub@redhat.com>

        PR debug/44136
        * cfgexpand.c (expand_debug_expr): If non-memory op0
        has BLKmode, return NULL.

2010-05-14  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config.gcc: Add support for --with-cpu option for bdver1.
        * config/i386/i386.h (TARGET_BDVER1): New macro.
        (ix86_tune_indices): Change SSE_UNALIGNED_MOVE_OPTIMAL
        to SSE_UNALIGNED_LOAD_OPTIMAL. Add SSE_UNALIGNED_STORE_OPTIMAL.
        (ix86_tune_features) :Change SSE_UNALIGNED_MOVE_OPTIMAL
        to SSE_UNALIGNED_LOAD_OPTIMAL. Add SSE_UNALIGNED_STORE_OPTIMAL.
        Add SSE_PACKED_SINGLE_INSN_OPTIMAL.
        (TARGET_CPU_DEFAULT_NAMES): Add bdver1.
        (processor_type): Add PROCESSOR_BDVER1.
        * config/i386/i386.md: Add bdver1 as a new cpu attribute to match
        processor_type in config/i386/i386.h.
        Add check for TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit
        movaps <reg, reg> instead of movapd <reg, reg> when replacing
        movsd <reg, reg> or movss <reg, reg> for SSE and AVX.
        Add check for  TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL
        to emit packed xor instead of packed double/packed integer
        xor for SSE and AVX when moving a zero value.
        * config/i386/sse.md: Add check for
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit movaps instead of
        movapd/movdqa for SSE and AVX.
        Add check for TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit packed
        single logical operations i.e and, or and xor instead of packed double
        logical operations for SSE and AVX.
        * config/i386/i386-c.c (ix86_target_macros_internal):
        Add PROCESSOR_BDVER1.
        * config/i386/driver-i386.c: Turn on -mtune=native for BDVER1.
        (has_fma4, has_xop): New.
        * config/i386/i386.c (bdver1_cost): New variable.
        (m_BDVER1): New macro.
        (m_AMD_MULTIPLE): Add m_BDVER1.
        (x86_tune_use_leave, x86_tune_push_memory, x86_tune_unroll_strlen,
        x86_tune_deep_branch_prediction, x86_tune_use_sahf, x86_tune_movx,
        x86_tune_use_simode_fiop, x86_tune_promote_qimode,
        x86_tune_add_esp_8, x86_tune_tune_sub_esp_4, x86_tune_sub_esp_8,
        x86_tune_integer_dfmode_moves, x86_tune_partial_reg_dependency,
        x86_tune_sse_partial_reg_dependency,
        x86_tune_sse_unaligned_load_optimal,
        x86_tune_sse_unaligned_store_optimal, x86_tune_sse_typeless_stores,
        x86_tune_memory_mismatch_stall, x86_tune_use_ffreep,
        x86_tune_inter_unit_moves, x86_tune_inter_unit_conversions,
        x86_tune_use_bt, x86_tune_pad_returns, x86_tune_slow_imul_imm32_mem,
        x86_tune_slow_imul_imm8, x86_tune_fuse_cmp_and_branch):
        Enable/disable for bdver1.
        (processor_target_table): Add bdver1_cost.
        (cpu_names): Add bdver1.
        (override_options): Set up PROCESSOR_BDVER1 for bdver1 entry in
         processor_alias_table.
        (ix86_expand_vector_move_misalign): Change.
        TARGET_SSE_UNALIGNED_MOVE_OPTIMAL to TARGET_SSE_UNALIGNED_LOAD_OPTIMAL.
        Check for TARGET_SSE_UNALIGNED_STORE_OPTIMAL.
        Check for TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit movups instead
        of movupd/movdqu for SSE and AVX.
        (ix86_tune_issue_rate): Add PROCESSOR_BDVER1.
        (ix86_tune_adjust_cost): Add code for bdver1.
        (standard_sse_constant_opcode): Add check for
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit packed single xor instead
        of packed double xor for SSE and AVX.

2010-05-14  Pat Haugen  <pthaugen@us.ibm.com>

        * tree-ssa-loop.prefetch.c (prune_ref_by_group_reuse): Cast abs()
        result to unsigned.

2010-05-14  Tristan Gingold  <gingold@adacore.com>

        * toplev.c (default_debug_hooks): Remove this variable.
        (process_options): Remove assignments to default_debug_hooks.

2010-05-14  Martin Jambor  <mjambor@suse.cz>

        * langhooks-def.h (LANG_HOOKS_FOLD_OBJ_TYPE_REF): Remove.
        (LANG_HOOKS_INITIALIZER): Remove LANG_HOOKS_FOLD_OBJ_TYPE_REF.
        * langhooks.h (struct lang_hooks_for_decls): Removed field
        fold_obj_type_ref.
        * tree.c (free_lang_data): Remove assignment to
        lang_hooks.fold_obj_type_ref.
        * tree.def (OBJ_TYPE_REF): Update comment.

2010-05-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/44124
        * tree-ssa-sccvn.c (vn_nary_may_trap): Fix invalid memory access.

2010-05-14  Alan Modra  <amodra@gmail.com>

        PR target/44075
        * config/rs6000/rs6000.c (struct machine_function): Reorder
        fields for better packing.  Add lr_save_state.
        (rs6000_ra_ever_killed): Return lr_save_state if set.
        (rs6000_emit_eh_reg_restore): Set lr_save_state.

2010-05-13  Jan Hubicka  <jh@suse.cz>

        * varpool.c (decide_is_variable_needed): Drop code checking
        TREE_SYMBOL_REFERENCED.

2010-05-13  Jan Hubicka  <jh@suse.cz>

        * final.c (output_addr_const): Do not call mark_decl_referenced.
        * cgraphunit.c (process_function_and_variable_attributes): Use
        mark_needed_node dirrectly.
        (assemble_thunk): Do not call mark_decl_referenced.

2010-05-13  Anatoly Sokolov  <aesok@post.ru>

        * targhooks.c (default_mode_dependent_address_p): Cast 'addr' to rtx.

2010-05-13  Jeff Law  <law@redhat.com>

        * ira-conflicts.c (print_allocno_conflicts): New function broken out
        from...
        (print_conflicts): Call print_allocno_conflicts.

2010-05-13  Jakub Jelinek  <jakub@redhat.com>

        PR debug/44104
        * dwarf2out.c (modified_type_die): Don't dereference mod_type_die
        if it is NULL.

2010-05-13  Kai Tietz  <kai.tietz@onevision.com>

        * config.gcc (i[34567]86-*-mingw* | x86_64-*-mingw*): Choose
        t-mingw-w64 or t-mingw-w32 for multilib configuration.
        * config/i386/t-mingw-w32: New.
        * config/i386/t-mingw-w64 (MULTILIB_OSDIRNAMES): Change lib64 to lib.

2010-05-13  Martin Jambor  <mjambor@suse.cz>

        * gimple.c (gimple_fold_obj_type_ref): Removed (a replacement moved to
        gimple-fold.c).
        * gimple-fold.c (get_base_binfo_for_type): New function.
        (gimple_get_relevant_ref_binfo): Likewise.
        (gimple_fold_obj_type_ref_known_binfo): Likewise.
        (gimple_fold_obj_type_ref): Likewise.
        (fold_gimple_call): Simplify condition for folding virtual calls
        and call gimple_fold_obj_type_ref.
        * gimple.h (gimple_get_relevant_ref_binfo): Declare.
        (gimple_fold_obj_type_ref_known_binfo): Likewise.

2010-05-13  Andreas Schwab  <schwab@linux-m68k.org>

        * config/rs6000/rs6000-protos.h
        (rs6000_mode_dependent_address_ptr): Change argument to const_rtx.
        * config/rs6000/rs6000.c (rs6000_mode_dependent_address)
        (rs6000_debug_mode_dependent_address)
        (rs6000_mode_dependent_address_ptr): Likewise.

2010-05-13  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43983
        * var-tracking.c (track_expr_p): Allow tracking of variables optimized
        by SRA.
        * Makefile.in (dwarf2out.o): Depend on $(TREE_FLOW_H).
        * tree-sra.c (create_access_replacement): Call unshare_expr before
        passing expr to SET_DECL_DEBUG_EXPR, and remove any SSA_NAMEs from it.
        * dwarf2out.c: Include tree-flow.h.
        (struct var_loc_node): Rename var_loc_note field to loc, add comment.
        (size_of_loc_descr, output_loc_operands, output_loc_operands_raw):
        Handle DW_OP_bit_piece.
        (decl_piece_bitsize, decl_piece_varloc_ptr, decl_piece_node,
        construct_piece_list, adjust_piece_list): New functions.
        (add_var_loc_to_decl): Handle SRA optimized variables.
        Adjust for var_loc_note to loc field renaming.
        (dw_loc_list_1): For WANT_ADDRESS == 2 prefer DECL_MODE of decl
        in VAR_LOCATION note.
        (new_loc_descr_op_bit_piece): New function.
        (dw_sra_loc_expr): New function.
        (dw_loc_list): Use it.  Don't handle the last range after the
        loop, handle it inside of the loop.  Adjust for var_loc_note
        to loc field renaming.
        (add_location_or_const_value_attribute): Only special case
        single entry loc lists if loc is NOTE_P.  Adjust for
        var_loc_note to loc field renaming.
        (dwarf2out_var_location): Don't set newloc->var_loc_note
        and newloc->next here.

2010-05-12  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_mark_address_taken_node): No longer imply needed
        flag.
        * cgraph.h (cgraph_only_called_directly_p,
        cgraph_can_remove_if_no_direct_calls_p): test address_taken flag.
        (cgraph_can_remove_if_no_direct_calls_and_refs_p): New function.
        * cgraphunit.c (cgraph_mark_functions_to_output): Test address_taken.
        (assemble
        * ipa.c (cgraph_remove_unreachable_nodes): Use
        cgraph_can_remove_if_no_direct_calls_and_refs_p; clear address_taken
        flags.
        * tree-inline.c (copy_bb): Check address_taken flag.
        * tree-profile.c (tree_gen_ic_func_profiler): Check address_taken and
        externally_visible flag.

2010-05-12  Jason Merrill  <jason@redhat.com>

        PR bootstrap/44048
        PR target/44099
        * dbxout.c (dbxout_type): Remove NULLPTR_TYPE handling.
        * sdbout.c (plain_type_1): Likewise.
        * dwarf2out.c (is_base_type): Likewise.
        (gen_type_die_with_usage): Likewise.  Generate
        DW_TAG_unspecified_type for any LANG_TYPE.

2010-05-12  Jan Hubicka  <jh@suse.cz>

        * cgraphbuild.c (build_cgraph_edges, rebuild_cgraph_edges): Build
        indrect edges too.
        * cgraph.c (cgraph_create_indirect_edge): Take ecf_flags argument.
        (cgraph_clone_edge): Update.
        (cgraph_node_remove_callees): Remove indirect calls too.
        * cgraph.h (cgraph_indirect_call_info): Add ecf_flags.
        (cgraph_create_indirect_edge): Update prototype.
        * ipa-reference.c (has_proper_scope_for_analysis): Rename to
        is_proper_for_analysis.
        (add_new_function, visited_nodes, function_insertion_hook_holder,
        get_local_reference_vars_info, mark_address_taken, mark_address,
        mark_load, mark_store, check_asm_memory_clobber, check_call,
        scan_stmt_for_static_refs, scan_initializer_for_static_refs): Remove.
        (ipa_init): Do not initialize visited_nodes;
        function_insertion_hook_holder.
        (analyze_variable): Rewrite.
        (analyze_function): Rewrite.
        (copy_local_bitmap): Remove.
        (duplicate_node_dat): Do not duplicate local info.
        (generate_summary): Simplify to only walk cgraph.
        (write_node_summary_p, ipa_reference_write_summary,
        ipa_reference_read_summary): Remove.
        (propagate): Do not remove function insertion;
        generate summary.
        (pass_ipa_reference): NULLify summary handling fields.
        * lto-cgraph.c (lto_output_edge): Output ecf_flags.
        (input_edge): Input ecf_flags.
        * ipa-prop.c (ipa_note_parm_call): Expect edge to be around.
        (update_indirect_edges_after_inlining): Ignore edges with unknown
        param.

2010-05-12  Sriraman Tallam  <tmsriram@google.com>

        * implicit-zee.c: New file.
        * tree-pass.h (pass_implicit_zee): Declare.
        * passes.c (init_optimization_passes): Add zee pass.
        * common.opt (fzee): New flag.
        * timevar.def (TV_ZEE): Define.
        * config/i386/i386.c (optimization_options): Turn on ZEE for level 2
        and beyond.
        * Makefile.in (implicit-zee.o): Add new build file.

2010-05-12  Kazu Hirata  <kazu@codesourcery.com>
            Nathan Froyd  <froydnj@codesourcery.com>

        * c-common.c (sync_resolve_params): Remove write-only variable.

2010-05-12  Anatoly Sokolov  <aesok@post.ru>

        * target.h (struct gcc_target): Add mode_dependent_address_p field.
        * target-def.h (TARGET_MODE_DEPENDENT_ADDRESS_P): New.
        (TARGET_INITIALIZER): Use TARGET_MODE_DEPENDENT_ADDRESS_P.
        * targhooks.c (default_mode_dependent_address_p): New function.
        * targhooks.h (default_mode_dependent_address_p): Declare function.
        * doc/tm.texi (TARGET_MODE_DEPENDENT_ADDRESS_P): New.
        (GO_IF_MODE_DEPENDENT_ADDRESS): Update.
        * recog.c: (mode_dependent_address_p): Call mode_dependent_address_p
        target hook. Change return type to bool.
        * recog.h: (mode_dependent_address_p): Change return type to bool.

2010-05-12  Kazu Hirata  <kazu@codesourcery.com>
            Nathan Froyd  <froydnj@codesourcery.com>

        * tree-mudflap.c (build_function_type_0, build_function_type_1,
        build_function_type_2, build_function_type_3): Remove.
        (mudflap_init): Use build_function_type_list.

2010-05-12  Kazu Hirata  <kazu@codesourcery.com>
            Nathan Froyd  <froydnj@codesourcery.com>

        * coverage.c (build_fn_info_value): Call build_constructor instead of
        build_constructor_from_list.
        (build_ctr_info_value): Likewise.
        (build_gcov_info): Likewise.

2010-05-12  Nathan Froyd  <froydnj@codesourcery.com>

        * tree.c (build_constructor): Compute TREE_CONSTANT for the
        resultant constructor.
        (build_constructor_single): Don't set TREE_CONSTANT.
        (build_constructor_from_list): Don't compute TREE_CONSTANT.

2010-05-12  Jan Hubicka  <jh@suse.cz>

        * cgraph.h (struct varpool_node): Add aux.
        * varasm.c (find_decl_and_mark_needed): Force output of varpool nodes.
        * varpool.c (varpool_remove_node): Do not remove initializer.
        (varpool_reset_queue): Export.
        (varpool_finalize_decl): Volatile vars are forced to be output.
        * lto-symtab.c (lto_varpool_replace_node): Clear out initializer of
        replaced decl.
        * ipa.c (enqueue_cgraph_node, enqueue_varpool_node,
        process_references, varpool_can_remove_if_no_refs): New functions.
        (cgraph_remove_unreachable_nodes): Handle variables too.

2010-05-12  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/44088
        * config/i386/sse.md (*avx_vmmaskcmp<mode>3): New.

2010-05-12  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/44085
        * gimplify.c (enum omp_region_type): Add ORT_UNTIED_TASK,
        change value of ORT_TASK.
        (new_omp_context): Handle ORT_UNTIED_TASK like ORT_TASK.
        (omp_notice_threadprivate_variable): New function.
        (omp_notice_variable): Call it for threadprivate variables.
        If enclosing ctx is a task, print enclosing task rather than
        enclosing parallel.  Handle ORT_UNTIED_TASK like ORT_TASK.
        (gimplify_omp_task): Pass ORT_UNTIED_TASK instead of ORT_TASK
        if task has untied clause.

        PR debug/42278
        * dwarf2out.c (base_type_die): Don't add name attribute here.
        (modified_type_die): Instead of sizetype use
        its underlying original type.  If a DW_TAG_base_type doesn't
        have name added, add __unknown__.
        (dwarf2out_imported_module_or_decl_1): Don't call base_type_die,
        always call force_type_die instead.

2010-05-12  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * targhooks.c (default_stack_protect_guard): Avoid sharing RTL
        for __stack_chk_guard.

2010-05-11  Jakub Jelinek  <jakub@redhat.com>

        * c-opts.c (c_common_parse_file): If start_end_main_source_file,
        don't call start_source_file debug hook here...
        (finish_options): ... but here, after outputting predefined and
        command line defines and undefs.

        PR middle-end/44071
        * cfglayout.c (fixup_reorder_chain): Allow asm goto to have
        no fallthru edge.
        * cfgcleanup.c (try_optimize_cfg): When in cfglayout mode
        optimizing away empty bb with no successors, move over its
        footer chain to fallthru predecessor.
        * cfgrtl.c (patch_jump_insn): Update also REG_LABEL_OPERAND.
        (rtl_split_edge): For asm goto call patch_jump_insn even if
        splitting fallthru edge.

        PR c++/44059
        * config/elfos.h (ASM_DECLARE_OBJECT_NAME): Use qnu_unique_object
        even for DECL_ONE_ONLY DECL_ARTIFICIAL !TREE_READONLY decls.
        * config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Likewise.
        * dwarf2asm.c (dw2_output_indirect_constant_1): Set TREE_READONLY
        on DW.ref.* decls.

        PR c++/44062
        * c-parser.c (c_parser_expression): Mark LHS of a comma
        expression as read if it is a decl, handled component or
        COMPOUND_EXPR with that on the RHS.
        * c-typeck.c (c_process_expr_stmt): Mark RHS of COMPOUND_EXPR
        if it is a decl or handled component.

2010-05-11  Jan Hubicka  <jh@suse.cz>

        * lto-symtab.c (lto_symtab_free): New function.
        * lto-streamer.h (lto_symtab_free): Declare.

2010-05-11  Jan Hubicka  <jh@suse.cz>

        * lto-cgraph.c (reachable_from_other_partition_p): Export; do not assume
        that if function is needed it is reachable.
        (lto_output_node): See if it the function is reachable or referenced.
        (output_cgraph): Update call of lto_output_node.
        * lto-streamer.h (reachable_from_other_partition_p): Declare.

2010-05-11  Jan Hubicka  <jh@suse.cz>

        * crtstuff.c (__JCR_LIST__, __DTOR_END__, __JCR_END__, __FRAME_END__):
        Mark as used.

2010-05-11  Jan Hubicka  <jh@suse.cz>

        PR tree-optimize/44063
        * ipa-inline.c (cgraph_edge_badness): Move always inlines to top of
        queue.
        (cgraph_decide_inlining_of_small_function): Skip check when disrgarding
        limits.
        (estimate_function_body_sizes): Compute sizes even when disregarding.

2010-05-11  Kai Tietz  <kai.tietz@onevision.com>

        * collect2.c (maybe_lto_object_file): Add x64-coff magic and check.

2010-05-11  Jan Hubicka  <jh@suse.cz>

        * lto-cgraph.c (output_cgraph): Remove loop adding all varpool nodes
        into every boundary.

2010-05-11  Jan Hubicka  <jh@suse.cz>

        * matrix-reorg.c (matrix_reorg): Rebuild edges.

2010-05-11  Jan Hubicka  <jh@suse.cz>

        * lto-streamer.c (lto_streamer_cache_add_to_node_array,
        lto_streamer_cache_delete): Put nodes into heap.
        * lto-streamer.h (struct lto_streamer_cache_d): Nodes vector is in
        heap.

2010-05-11  Jan Hubicka  <jh@suse.cz>

        * cgraphbuild.c (cgraph_rebuild_references): New.
        * cgraph.c (cgraph_mark_reachable_node): Accept references to optimized
        out extern inlines.
        * cgraph.h (cgraph_rebuild_references): Declare.
        * tree-inline.c (tree_function_versioning): Use it.
        * ipa-struct-reorg.c (do_reorg_for_func): Likewise.

2010-05-11  Jan Hubicka  <jh@suse.cz>

        * cgraph.c: Include ipa-utils.h
        (cgraph_create_virtual_clone): Update references.
        * Makefile.in (cgraph.o): Add dependency at ipa-utils.h

2010-05-11  Christian Borntraeger  <borntraeger@de.ibm.com>

        * tree-ssa-loop-prefetch.c (prune_ref_by_group_reuse): Reset
        prefetch_before to PREFETCH_ALL if to accesses "meet" beyond
        cache size.

2010-05-11  Christian Borntraeger  <borntraeger@de.ibm.com>

        * tree-ssa-loop-prefetch.c: Add debug for dropped prefetches.

2010-05-11  Jakub Jelinek  <jakub@redhat.com>

        * gcc.c (execute): For -### don't quote arguments that
        contain just alphanumerics and _/-. characters.
        * doc/invoke.texi: Document that change for -###.

        PR debug/44023
        * df-problems.c (struct dead_debug): Add to_rescan field.
        (dead_debug_init): Clear to_rescan field.
        (dead_debug_finish): Rescan all debug insns in to_rescan
        bitmap and free the bitmap.
        (dead_debug_insert_before): Instead of rescanning debug insns
        immediately queue their rescanning until dead_debug_finish.
        (df_note_bb_compute): After dead_debug_add do continue instead
        of break.

2010-05-10  Jakub Jelinek  <jakub@redhat.com>

        PR debug/44028
        * haifa-sched.c (schedule_insn): When clearing INSN_VAR_LOCATION_LOC,
        clear also INSN_REG_USE_LIST.

2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/mips/mips.c (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): Undef.

2010-05-10  Jan Hubicka  <jh@suse.cz>

        * lto-stramer-out.c (produce_asm_for_decls): Correct accidentally
        commited change.

2010-05-10  Jan Hubicka  <jh@suse.cz>

        * passes.c (ipa_write_summaries_1, ipa_write_optimization_summaries):
        Allocate encoders.
        * lto-section-out.c (lto_new_out_decl_state): Do not allocate it here.
        * lto-streamer.c (lto_streamer_cache_insert_1): Use alloc pool.
        (lto_streamer_cache_create): Init alloc pool.
        (lto_streamer_cache_delete): Free alloc pool.
        * lto-streamer.h: Include alloc pool.
        (lto_streamer_cache_d): Use alloc pool.
        * lto-stramer-out.c (produce_asm_for_decls): Delete fn_out_states.

2010-05-10  Jan Hubicka  <jh@suse.cz>

        * Makefile.in (cgraphbuild.o): Add dependency on except.h.
        * cgraphbuild.c: Include except.h
        (record_type_list, record_eh_tables): New function.
        (build_cgraph_edges, rebuild_cgraph_edges): Use it.

2010-05-10  Jan Hubicka  <jh@suse.cz>

        * crtstuff.c (force_to_data, __do_global_dtors_aux_fini_array_entry,
        __frame_dummy_init_array_entry, force_to_data): Attribute as used
        rather than unused.

2010-05-10  Michael Matz  <matz@suse.de>

        * tree-ssa-reassoc.c (undistribute_ops_list): Use create_tmp_reg.
        (can_reassociate_p): Use FLOAT_TYPE_P.
        * tree-vectorizer.h (vect_is_simple_reduction): Rename to ...
        (vect_force_simple_reduction): ... this.
        * tree-parloops.c (gather_scalar_reductions): Use
        vect_force_simple_reduction.
        * tree-vect-loop.c (vect_is_simple_reduction_1): Rename from
        vect_is_simple_reduction, add modify argument, if true rewrite
        "a-b" into "a+(-b)".
        (vect_is_simple_reduction, vect_force_simple_reduction): New
        functions.
        (vect_analyze_scalar_cycles_1): Use vect_force_simple_reduction.

2010-05-10  H.J. Lu  <hongjiu.lu@intel.com>
            Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/44012
        * ira-build.c (remove_unnecessary_allocnos): Nullify
        regno_allocno_map of the removed allocno.

2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_ld_eh_gc_sections): Redirect objdump errors
        to /dev/null.
        * configure: Regenerate.

2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/sol2.c (solaris_assemble_visibility): Declare decl, vis
        unused.
        Define visibility_types, name, type inside HAVE_GAS_HIDDEN.
        * configure.ac (gcc_cv_ld_hidden): Explain stages of visibility
        support in Sun ld.
        * configure: Regenerate.

2010-05-10  Richard Guenther  <rguenther@suse.de>

        * lto-symtab.c (lto_symtab_entry_marked_p): Make entry
        marked if the entry identifier is marked.

2010-05-10  Richard Guenther  <rguenther@suse.de>

        * c-common.c (struct c_common_attributes): Add fnspec attribute.
        (handle_fnspec_attribute): New function.
        * gimple.h (gimple_call_return_flags): Declare.
        (gimple_call_arg_flags): Likewise.
        * gimple.c (gimple_call_arg_flags): New function.
        (gimple_call_return_flags): Likewise.
        * tree.h (EAF_DIRECT, EAF_NOCLOBBER, EAF_NOESCAPE, EAF_UNUSED):
        New argument flags.
        (ERF_RETURN_ARG_MASK, ERF_RETURNS_ARG, ERF_NOALIAS): New function
        return value flags.
        * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Skip unused args.
        * tree-ssa-structalias.c (make_constraint_from_heapvar): Split
        main work to ...
        (make_heapvar_for): ... this new function.
        (handle_rhs_call): Handle fnspec attribute argument specifiers.
        (handle_lhs_call): Likewise.
        (find_func_aliases): Adjust.

2010-05-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/44050
        * tree-inline.c (tree_function_versioning): Clone the ipa-pta flag.

2010-05-10  Wei Guozhi  <carrot@google.com>

        PR target/42879
        * config/arm/thumb2.md (thumb2_tlobits_cbranch): New insn pattern.

2010-05-09  Joseph Myers  <joseph@codesourcery.com>

        PR c/10676
        * c-typeck.c (lookup_field): Take a type directly.  Update
        recursive calls.
        (build_component_ref): Update call to lookup_field.
        (set_init_label): Use lookup_field to find initialized field.
        Handle returned list of fields like a sequence of designators.

2010-05-09  Richard Guenther  <rguenther@suse.de>

        PR middle-end/44024
        * fold-const.c (tree_single_nonzero_warnv_p): Properly
        handle &FUNCTION_DECL.

2010-05-09  Joseph Myers  <joseph@codesourcery.com>

        PR c/4784
        * c-decl.c (detect_field_duplicates_hash): New.  Handle anonymous
        structures and unions recursively.
        (detect_field_duplicates): Move duplicate detection with a hash to
        detect_field_duplicates_hash.  Always use a hash if anonymous
        structures or unions are present.
        * doc/extend.texi (Unnamed Fields): Document that duplicate fields
        give errors.

2010-05-09  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/44046
        * config/i386/driver-i386.c (host_detect_local_cpu): Properly
        detect Atom, Core 2 and Core i7.

2010-05-09  Richard Guenther  <rguenther@suse.de>

        * gcc.c (store_arg): Handle temporary file deletion for
        joined arguments.

2010-05-09  Richard Guenther  <rguenther@suse.de>

        PR middle-end/44043
        * ipa-inline.c (estimate_function_body_sizes): Return after
        disregarding inline limits.

2010-05-09  Richard Guenther  <rguenther@suse.de>

        * gcc.c (store_arg): Revert last change.

2010-05-08  Sandra Loosemore  <sandra@codesourcery.com>

        PR middle-end/28685
        * tree-ssa-reassoc.c (eliminate_redundant_comparison): New function.
        (optimize_ops_list): Call it.

2010-05-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/44030
        * tree-ssa-pre.c (eliminate): Copy NECESSARY flag.  Set
        NECESSARY flag if we propagate from a inserted expression.

2010-05-08  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple.c (gimple_types_compatible_p) <ARRAY_TYPE>: Treat bounds of
        domain types as equal if they are both PLACEHOLDER_EXPRs.

2010-05-08  Richard Guenther  <rguenther@suse.de>

        * lto-wrapper.c (run_gcc): Remove linker output from
        command line for LTRANS invocation.

2010-05-07  Steven Bosscher  <steven@gcc.gnu.org>

        * config.gcc (i[34567]86-*-darwin*, x86_64-*-darwin*): Add
        lto-macho as lto_binary_reader.
        * target.h (struct gcc_target): New hooks lto_start and lto_end.
        * target-def.h (TARGET_ASM_LTO_START, TARGET_ASM_LTO_END): Define.
        * cgraphunit.c (ipa_passes): Wrap LTO assembler output generation
        in lto_start and lto_end calls.
        (is_elf_or_coff): Rename to maybe_lto_object_file.  Add Mach-O
        magic numbers.
        (scan_prog_file): Update is_elf_or_coff call.
        * doc/tm.text (TARGET_ASM_LTO_START, TARGET_ASM_LTO_END): Document.

        * collect2.c (main): Fix enum comparison.

        * config/darwin-protos.h (darwin_asm_lto_start, darwin_asm_lto_end):
        Add prototypes.
        * darwin9.h (LINK_COMMAND_SPEC): Pass -flto and -fwhopr to the linker.
        * darwin.h (LINK_COMMAND_SPEC): Likewise.  Define TARGET_ASM_LTO_START
        and TARGET_ASM_LTO_END.
        * darwin.c: Include obstack.h and lto-streamer.h.
        (lto_section_names_offset, lto_section_names_obstack,
        lto_asm_out_file, lto_asm_out_name, saved_asm_out_file): New static
        global variables.
        (LTO_SEGMENT_NAME, LTO_NAMES_SECTION): New defines.
        (darwin_asm_lto_start): New function.  Redirect output to asm_out_file
        to a temporary file.
        (darwin_asm_lto_end): New function.  Restore asm_out_file.
        (darwin_asm_named_section): For LTO sections, replace the name with
        the offset of the section name in a string table, and build this
        table.
        (darwin_file_start): Initialize global vars for LTO support.
        (darwin_file_end): If output to asm_out_file was redirected, append it
        to the proper asm_out_file here.  Add the section names section.

2010-05-07  Steven Bosscher  <steven@gcc.gnu.org>

        * c-pragma.c (pending_weak_d, pending_weak): New.
        (pending_weaks): Change the type to VEC((pending_weak,gc) *.
        (maybe_apply_pragma_weak, maybe_apply_pending_pragma_weaks,
        handle_pragma_weak): Update the uses of pending_weaks.

2010-05-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR documentation/44016
        * doc/standards.texi (Standards): Link to unversioned
        cxx0x_status.html page.

2010-05-07  Iain Sandoe <iains@gcc.gnu.org>

        PR target/43708
        * config/darwin-c.c (darwin_pragma_unused): Set DECL_READ_P
        in addition to TREE_USED, to avoid "set but unused" warnings.

2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>

        * tree-ssa-loop-prefetch.c (TRIP_COUNT_TO_AHEAD_RATIO): New.
        (is_loop_prefetching_profitable): Do not insert prefetches
        when the trip count is not at least TRIP_COUNT_TO_AHEAD_RATIO
        times the prefetch ahead distance.

2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>

        * tree-ssa-loop-prefetch.c (is_loop_prefetching_profitable):
        Account for loop unrolling in the insn-to-prefetch ratio heuristic.
        (loop_prefetch_arrays): Pass to is_loop_prefetching_profitable
        the unroll_factor.

2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>

        * tree-ssa-loop-prefetch.c (is_loop_prefetching_profitable): Dump
        a diagnostic info when the insn-to-mem ratio is too small.

2010-05-07  Richard Guenther <rguenther@suse.de>

        * gcc.c (LINK_COMMAND_SPEC): Provide a resolution file to
        the linker plugin.
        (store_arg): Queue temp_filename for deletion instead of
        the whole argument.

2010-05-07  Richard Guenther  <rguenther@suse.de>

        * lto-wrapper.c (DUMPBASE_SUFFIX): Define.
        (run_gcc): Handle LTRANS phase invocation.
        * collect2.c (maybe_run_lto_and_relink): Do not set WPA_SAVE_LTRANS.

2010-05-07  Jakub Jelinek  <jakub@redhat.com>

        * tree.h (TREE_ADDRESSABLE): Adjust comment to say that
        this is also meaningful on PARM_DECLs and RESULT_DECLs.

2010-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/mips/iris6.h (LINK_SPEC): Don't pass -init, -fini with -r.

2010-05-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/44020
        * tree-ssa-pre.c (execute_pre): Do not remove dead inserted
        code when PRE is not yet initialized.

2010-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/mips/dbxmdebug.h: Remove.
        * config.gcc (mips-sgi-irix6.5*): Remove mips/dbxmdebug.h.

2010-05-07  Shujing Zhao  <pearly.zhao@oracle.com>

        * c-typeck.c (build_binary_op): Warn ordered comparison of pointer
        with null pointer and also warn about ordered comparison of zero with
        pointer if -Wextra.

2010-05-05  Andreas Simbuerger  <simbuerg@fim.uni-passau.de>

        * graphite-blocking.c
        (pbb_strip_mine_profitable_p): Replace Value with mpz_t.
        * graphite-clast-to-gimple.c
        (clast_to_gcc_expression): Same.
        (precision_for_value): Same.
        (precision_for_interval): Same.
        (gcc_type_for_interval): Same.
        (graphite_create_new_guard): Same.
        (compute_bounds_for_level): Same.
        (graphite_create_new_loop_guard): Same.
        * graphite-interchange.c
        (build_linearized_memory_access): Same.
        (pdr_stride_in_loop): Same.
        (memory_strides_in_loop_1): Same.
        (memory_strides_in_loop): Same.
        (extend_scattering): Same.
        (psct_scattering_dim_for_loop_depth): Same.
        (pbb_number_of_iterations): Same.
        * graphite-poly.h
        (debug_iteration_domains): Same.
        * graphite-ppl.c
        (new_Cloog_Domain_from_ppl_Pointset_Powerset): Same.
        (ppl_set_inhomogeneous_gmp): Same.
        (ppl_strip_loop): Same.
        (ppl_lexico_compare_linear_expressions): Same.
        (ppl_read_polyhedron_matrix): Same.
        (ppl_max_for_le_pointset): Same.
        * graphite-ppl.h
        (ppl_read_polyhedron_matrix): Same.
        (tree_int_to_gmp): Same.
        (gmp_cst_to_tree): Same.
        (ppl_set_inhomogeneous): Same.
        (ppl_set_inhomogeneous_tree): Same.
        (ppl_set_coef): Same.
        (ppl_set_coef_tree): Same.
        * graphite-sese-to-poly.c
        (build_pbb_scattering_polyhedrons): Same.
        (build_scop_scattering): Same.
        (scan_tree_for_params_right_scev): Same.
        (scan_tree_for_params): Same.
        (find_params_in_bb): Same.
        (find_scop_parameters): Same.
        (add_upper_bounds_from_estimated_nit): Same.
        (build_loop_iteration_domains): Same.
        (add_condition_to_domain): Same.
        (pdr_add_memory_accesses): Same.

2010-05-05  Andreas Simbuerger  <simbuerg@fim.uni-passau.de>

        * graphite-blocking.c (pbb_strip_mine_profitable_p): Resolve
        CLooG's value_* macros to their respective mpz_* counterparts.
        * graphite-clast-to-gimple.c (clast_to_gcc_expression): Same.
        (graphite_create_new_loop_guard): Same.
        * graphite-interchange.c (build_linearized_memory_access): Same.
        (pdr_stride_in_loop): Same.
        (memory_strides_in_loop_1): Same.
        (1st_interchange_profitable_p): Same.
        * graphite-poly.c (extend_scattering): Same.
        (psct_scattering_dim_for_loop_depth): Same.
        (pbb_number_of_iterations): Same.
        (pbb_number_of_iterations_at_time): Same.
        * graphite-poly.h (new_1st_loop): Same.
        * graphite-ppl.c (cloog_matrix_to_ppl_constraint): Same.
        (oppose_constraint): Same.
        (insert_constraint_into_matrix): Same.
        (ppl_set_inhomogeneous_gmp): Same.
        (ppl_set_coef_gmp): Same.
        (ppl_strip_loop): Same.
        (ppl_lexico_compare_linear_expressions): Same.
        (ppl_max_for_le_pointset): Same.
        (ppl_min_for_le_pointset): Same.
        (ppl_build_realtion): Same.
        * graphite-ppl.h (gmp_cst_to_tree): Same.
        (ppl_set_inhomogeneous): Same.
        (ppl_set_inhomogeneous_tree): Same.
        (ppl_set_coef): Same.
        (ppl_set_coef_tree): Same.
        * graphite-sese-to-poly.c (build_pbb_scattering_polyhedrons): Same.
        (build_scop_scattering): Same.
        (add_value_to_dim): Same.
        (scan_tree_for_params_right_scev): Same.
        (scan_tree_for_params_int): Same.
        (scan_tree_for_params): Same.
        (find_params_in_bb): Same.
        (find_scop_parameters): Same.
        (add_upper_bounds_from_estimated_nit): Same.
        (build_loop_iteration_domains): Same.
        (create_linear_expr_from_tree): Same.
        (add_condition_to_domain): Same.
        (pdr_add_memory_accesses): Same.

2010-05-06  Magnus Fromreide  <magfr@lysator.liu.se>
            Jason Merrill  <jason@redhat.com>

        * c-common.c (c_common_reswords): Add nullptr.
        * c-common.h: Add RID_NULLPTR.  Reorganize C++0x rids.
        * dwarf2out.c (is_base_type): Handle NULLPTR_TYPE.
        (gen_type_die_with_usage): Likewise.
        * dbxout.c (dbxout_type): Likewise.
        * sdbout.c (plain_type_1): Likewise.

2010-05-06  Jason Merrill  <jason@redhat.com>

        * gimplify.c (gimplify_expr): Set GS_ALL_DONE when appropriate.
        Don't change GS_OK to GS_ALL_DONE.  Make sure that all cases set
        ret appropriately.
        (gimplify_compound_lval): Return GS_ALL_DONE as appropriate.

        * gimplify.c (gimplify_modify_expr_rhs): Don't return GS_OK for
        stripping WITH_SIZE_EXPR.
        (gimplify_expr) [MODIFY_EXPR]: Trust GS_OK even if the rhs didn't
        change.

2010-05-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc: Removed mips-sgi-irix5*, mips-sgi-irix6.[0-4]* from
        list of obsolete configurations.
        Disabled check for obsolete configurations.
        (mips-sgi-irix[56]*): Restrict to mips-sgi-irix6.5*.
        Removed support for previous versions.
        * config/mips/iris.h: Removed.
        * config/mips/iris5.h: Removed.
        * config/mips/iris6.h: Merged old iris.h contents.
        (TARGET_IRIX): Removed.
        (DRIVER_SELF_SPECS): Removed mabi=32.
        (IDENT_ASM_OP): Removed undef.
        (STARTFILE_SPEC): Removed mabi=32.
        (ENDFILE_SPEC): Likewise.
        (IRIX_SUBTARGET_LINK_SPEC): Likewise.
        (MACHINE_TYPE): Update for IRIX 6.5.
        * config/mips/mips.c (mips_build_builtin_va_list): Replaced
        TARGET_IRIX by TARGET_IRIX6.
        (mips_file_start): Likewise.
        (mips_output_external): Remove IRIX 5/6 O32 support.
        (mips_output_function_prologue): Likewise.
        * config/mips/mips.h (TARGET_GPWORD): Replaced TARGET_IRIX by
        TARGET_IRIX6.
        (TARGET_CPU_CPP_BUILTINS): Likewise.
        (TARGET_IRIX): Removed.
        * config/mips/t-iris6 (MULTILIB_OPTIONS): Removed mabi=32.
        (MULTILIB_DIRNAMES): Removed 32.
        (MULTILIB_OSDIRNAMES): Removed ../lib.
        * doc/install.texi (Prerequisites): Don't reference IRIX before 6.5.
        (Specific, mips-sgi-irix5): Document removal.
        (Specific, mips-sgi-irix6): Document IRIX 6.[0-4] and O32 ABI removal.
        Remove references to older IRIX 6 releases and the O32 ABI.

2010-05-06  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/43994
        * df-problems.c (dead_debug_insert_before): Use *DF_REF_REAL_LOC
        instead of DF_REF_REAL_REG.

2010-05-06  Dave Korn  <dave.korn.cygwin@gmail.com>

        PR target/43888
        * config/i386/winnt.c (i386_pe_binds_local_p): Tweak weak symbol
        handling to still return true for x64 targets.

2010-05-06  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * config/m68k/uclinux.h (LIB_SPEC): Bring in sync with config/linux.h.

2010-05-06  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/43791
        * ipa-inline.c (update_caller_keys): Remove bogus
        disregard_inline_limits check.

2010-05-06  Michael Matz  <matz@suse.de>

        PR tree-optimization/43984
        * tree-ssa-pre.c (inserted_phi_names): Remove.
        (inserted_exprs): Change to bitmap.
        (create_expression_by_pieces): Set bits, don't append to vector.
        (insert_into_preds_of_block): Don't handle inserted_phi_names.
        (eliminate): Don't look at inserted_phi_names, remove deleted
        insns from inserted_exprs.
        (remove_dead_inserted_code): Adjust to use bitmaps instead of vectors.
        (init_pre, fini_pre): Allocate and free bitmaps.
        (execute_pre): Insert insns on edges before elimination.

2010-05-06  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * tree.c (initializer_zerop): Handle STRING_CST.

2010-05-06  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 40989
        * doc/invoke.texi (Wimplicit): Document as C only.
        * opts.c (common_handle_option): Add argument kind.
        (handle_option): Rename as read_cmdline_option. Factor out code to...
        (handle_option): ... here. New.
        (handle_options): Rename as read_cmdline_options.
        (decode_options): Update call.
        (set_option): Use option index instead of option pointer. Classify
        diagnostics correctly.
        (enable_warning_as_error): Call handle_option.
        * opts.h (set_option): Update declaration.
        (handle_option): Declare.
        * langhooks.h (struct lang_hooks): Add argument kind to handle_option.
        * c.opt (Wimplicit,Wimplicit-int): Initialize to -1.
        * c-opts.c (set_Wimplicit): Delete.
        (c_family_lang_mask): New static constant.
        (c_common_handle_option): Add argument kind. Use handle_option
        instead of set_Wimplicit.
        (c_common_post_options): warn_implicit and warn_implicit_int
        are disabled by default.
        * c-common.c (warn_implicit): Do not define here.
        * c-common.h (warn_implicit): Do not declare here.
        (c_common_handle_option): Update declaration.
        * lto-opts.c (lto_reissue_options): Update call to set_option.

2010-05-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43571
        * domwalk.c (walk_dominator_tree): Walk the dominator
        sons in more optimal order.

2010-05-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43934
        * tree-ssa-loop-im.c (movement_possibility): Handle PHI nodes.
        (stmt_cost): Likewise.
        (extract_true_false_args_from_phi): New helper.
        (determine_max_movement): For PHI nodes verify we can hoist them
        and compute their cost.
        (determine_invariantness_stmt): Handle PHI nodes.
        (move_computations_stmt): Likewise.  Hoist PHI nodes in
        if-converted form using COND_EXPRs.
        (move_computations): Return TODO_cleanup_cfg if we hoisted PHI nodes.
        (tree_ssa_lim): Likewise.
        * tree-flow.h (tree_ssa_lim): Adjust prototype.
        * tree-ssa-loop.c (tree_ssa_loop_im): Return todo.

2010-05-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43987
        * tree-ssa-structalias.c (could_have_pointers): For possibly
        address-taken variables force pointers to be recorded.
        (create_variable_info_for_1): Likewise.
        (push_fields_onto_fieldstack): Pass in wheter all fields
        must have pointers.
        (find_func_aliases): Query types instead of vars whether
        they contain pointers where appropriate.

2010-05-06  Jan Hubicka  <jh@suse.cz>

        * cgraphbuild.c (record_reference_ctx): Add varpool_node.
        (record_reference, mark_address, mark_load, mark_store): Record
        references.
        (record_references_in_initializer): Update call of record_references.
        (rebuild_cgraph_edges): Remove all references before rebuiding.
        * cgraph.c (cgraph_create_node): Clear ref list.
        (cgraph_remove_node): Remove references.
        (dump_cgraph_node): Dump references.
        (cgraph_clone_node): Clone references.
        * cgraph.h: Include ipa-ref.h and ipa-ref-inline.h
        (struct cgraph_node, varpool_node): Add ref_lst.
        * ipa-ref.c: New file.
        * ipa-ref.h: New file.
        * ipa-ref-inline.h: New file.
        * lto-cgraph.c (output_varpool): Take cgrag node set argument.
        (referenced_from_other_partition_p): New function.
        (lto_output_varpool_node): Take set arugment; call
        referenced_from_other_partition.
        (lto_output_ref): New.
        (add_references): New.
        (output_refs): New.
        (output_cgraph): Compute boundary based on references; output refs.
        (output_varpool): Accept cgraph_node_set argument.
        (input_ref): New.
        (input_refs): New.
        (input_cgraph): Call input_refs.
        * lto-section-in.c (lto_section_name): Add refs.
        * Makefile.in: (cgraph.h): Include ipa-ref.h and ipa-ref-inline.h
        (ipa-ref.o): New file.
        * varpool.c (varpool_node): Clear ipa ref list.
        (varpool_remove_node): Remove references.
        (dump_varpool_node): Dump references.
        (varpool_assemble_decl): Only compile finalized ones.
        (varpool_extra_name_alias): Initialize ref list.
        * lto-streamer.c (lto-get_section_name): Add .refs section.
        * lto-streamer.h (lto_section_type): Add LTO_section_refs.
        (referenced_from_other_partition_p): Declared.

2010-05-06  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/43901
        * tree-vect-stmts.c (vectorizable_call): Assert that vector
        type is not NULL if it's transformation phase, and return
        FALSE if it's analysis.
        (vectorizable_conversion, vectorizable_operation,
        vectorizable_type_demotion, vectorizable_type_promotion): Likewise.

2010-05-05  Andrew Pinski  <andrew.pinski@caviumnetworks.com>

        * config/mips/mips.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P):
        Delete.
        * config/mips/mips.c (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P):
        New define.
        * config/mips/mips-protos.h
        (mips_small_register_classes_for_mode_p): Delete prototype.

2010-05-06  Bernd Schmidt  <bernds@codesourcery.com>

        * config/arm/arm.h (MAX_LDM_STM_OPS): New macro.
        * config/arm/arm.c (multiple_operation_profitable_p,
        compute_offset_order): New static functions.
        (load_multiple_sequence, store_multiple_sequence): Use them.
        Replace constant 4 with MAX_LDM_STM_OPS.  Compute order[0] from
        memory offsets, not register numbers.
        (emit_ldm_seq, emit_stm_seq): Replace constant 4 with MAX_LDM_STM_OPS.

2010-05-05  Steven Bosscher  <steven@gcc.gnu.org>

        * stor-layout.c (pending_sizes): Change the type to VEC(tree,gc) *.
        (get_pending_sizes, put_pending_size, put_pending_sizes):
        Update the uses of pending_sizes.
        * c-decl.c (store_parm_decls): Likewise.
        * c-tree.h (struct c_arg_info): Likewise.
        * tree.h: Update the prototype for get_pending_sizes and
        put_pending_sizes.

2010-05-05  Jason Merrill  <jason@redhat.com>

        PR debug/43370
        * c-common.c (handle_aligned_attribute): Respect
        ATTR_FLAG_TYPE_IN_PLACE.

        PR testsuite/43758
        * target.h (struct gcc_target): Add attribute_takes_identifier_p.
        * target_def.h (TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P): Define.
        (TARGET_INITIALIZER): Use it.
        * c-common.c (attribute_takes_identifier_p): Call it.
        * c-common.h: Update prototype.
        * config/rs6000/rs6000.c (rs6000_attribute_takes_identifier_p): New.
        (TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P): Define.

2010-05-05  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43950
        * dwarf2out.c (gen_compile_unit_die): Add DW_AT_identifier_case
        DW_ID_down_case for Fortran compilation units.

2010-05-05  Jan Hubicka  <jh@suse.cz>

        * lto-cgraph.c (lto_output_varpool_node, input_varpool_node): Correctly
        handle aliases.

2010-05-05  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_return_expr): Gimplify the size expressions of
        a variable-sized RESULT_DECL.

2010-05-05  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * doc/invoke.texi (-mfix-cortex-m3-ldrd): Move from ARC section to ARM.

2010-05-05  Jason Merrill  <jason@redhat.com>

        PR c++/43787
        * gimplify.c (gimplify_expr): Keep working if gimplify_modify_expr
        returns GS_OK.
        (gimplify_modify_expr_rhs): Return GS_OK if anything changed.

2010-05-05  Alexandre Oliva  <aoliva@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR debug/43478
        * df-problems.c (struct dead_debug_use, struct dead_debug): New.
        (dead_debug_init, dead_debug_finish): New functions.
        (dead_debug_add, dead_debug_insert_before): Likewise.
        (df_note_bb_compute): Initialize a dead_debug object, add dead
        debug uses to it, insert debug bind insns before death insns,
        reset debug insns that refer to pending uses at the end.
        * rtl.h (make_debug_expr_from_rtl): New prototype.
        * varasm.c (make_debug_expr_from_rtl): New function.

2010-05-05  Jan Hubicka  <jh@suse.cz>

        * lto-cgraph.c (output_varpool): Forward declare; work on encoder.
        (lto_varpool_encoder_new, lto_varpool_encoder_delete,
        lto_varpool_encoder_encode, lto_varpool_encoder_lookup,
        lto_varpool_encoder_deref, lto_varpool_encoder_size,
        lto_varpool_encoder_encode_initializer_p,
        lto_set_varpool_encoder_encode_initializer): New functions.
        (lto_output_cgraph): Take vset parameter too; compute varpool encoder;
        call output_varpool.
        (input_varpool_node): Do not always set analyzed.
        (input_cgraph_1): Return vector of cgraph nodes.
        (input_varpool_1): Return vector of varpools.
        (input_cgraph): Free the vectors.
        * lto-streamer-out.c (lto_output_ts_decl_common_tree_pointers):
        output only initializers needed.
        (lto_output): Only call output_cgraph.
        (produce_asm_for_decls): Call lto_varpool_encoder_delete.
        * lto-section-out.c (lto_new_out_decl_state): Initialize
        state->varpool_node_encoder.
        * lto-streamer.h (lto_varpool_encoder_d): New.
        (lto_out_decl_state, lto_file_decl_data): Add varpool_node_encoder.
        (lto_cgraph_encoder_delete, output_cgraph): Update prototype.
        (lto_varpool_encoder_deref, lto_varpool_encoder_lookup,
        lto_varpool_encoder_encode, lto_varpool_encoder_delete,
        lto_varpool_encoder_encode_initializer_p, lto_varpool_encoder_new):
        Declare.
        (output_varpool, input_varpool): Remove declarations.

2010-05-05  Jan Hubicka  <jh@suse.cz>

        * lto-symtab.c (lto_symtab_resolve_can_prevail_p): Alias of variable
        with body can prevail.

2010-05-05  Jan Hubicka  <jh@suse.cz>

        * lto-symtab.c (lto_symtab_merge_decls_1): Prefer declarations with
        size.

2010-05-05  Laurynas Biveinis  <laurynas.biveinis@gmail.com>

        * Makefile.in (build/gengtype.o): Add $(HASHTAB_H) to dependencies.

        * gengtype.h (erro_at_line): Constify pos argument.

        * gengtype.c: Include hashtab.h.
        (enum gc_used): Document GC_MAYBE_POINTED_TO.
        (error_at_line): Constify pos argument.
        (do_typedef): Initialize p->opt field.
        (get_file_gtfilename): Fix comment typo.
        (struct walk_type_data): Constify line field.
        (get_output_file_for_structure): New function.
        (write_local_func_for_structure): Constify orig_s argument.
        Use get_output_file_for_structure.
        (write_func_for_structure): Use get_output_file_for_structure.
        (INDENT): New define.
        (dump_pair, dump_type, dump_type_list, dump_typekind)
        (dump_gc_used, dump_options, dump_fileloc, dump_type_u_s)
        (dump_type_u_a, dump_type_u_param_struct, dump_everything): New
        functions.
        (seen_types): New variable.
        (main): New variable do_dump.  Process "-d" command line option.
        Call dump_everything if dump requested.

2010-05-05  Jakub Jelinek  <jakub@redhat.com>

        * var-tracking.c (var_debug_decl): Save DECL_DEBUG_EXPR value
        in a temporary instead of invoking the macro multiple times.
        (track_expr_p): Likewise.

2010-05-04  Neil Vachharajani <nvachhar@google.com>

        * doc/invoke.texi (-Wcoverage-mismatch): Updated documentation as
        per new semantics.
        * opts.c (decode_options): Enable -Werror=coverage-mismatch.
        * coverage.c (get_coverage_counts): Always emit a warning.  Adjust
        conditions for printing notes.
        * common.opt (-Wcoverage-mismatch): Allow negative, default to
        true, update documentation.
        * Makefile.in (coverage.o): Add dependence on DIAGNOSTIC_H and intl.h.

2010-05-04  Jakub Jelinek  <jakub@redhat.com>

        PR c/43981
        * c-parser.c (c_parser_direct_declarator_inner): Call mark_exp_read
        on dimen.

2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/43799
        * config/i386/i386.md (sse_prologue_save): Clobber CC register.
        (*sse_prologue_save_insn1): Likewise.
        (SSE prologue save splitter): Likewise.

2010-05-04  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (free_lang_data_in_one_sizepos): New inline function.
        (free_lang_data_in_type): Call it on TYPE_{MIN|MAX}_VALUE of numerical
        types.  Call it on TYPE_SIZE and TYPE_SIZE_UNIT of all types.
        (free_lang_data_in_decl): Call it on DECL_SIZE and DECL_SIZE_UNIT of
        all decls.  Call it on DECL_FIELD_OFFSET of fields.
        (find_decls_types_r): Follow DECL_VALUE_EXPR.
        (iterative_hash_expr) <PLACEHOLDER_EXPR>: New case.

2010-05-04  Martin Jambor  <mjambor@suse.cz>

        * tree-sra.c (build_access_from_expr_1): The first parameter type
        changed to simple tree.
        (build_access_from_expr): Likewise, gsi parameter was eliminated.
        (scan_assign_result): Renamed to assignment_mod_result, enum elements
        renamed as well.
        (build_accesses_from_assign): Removed all parameters except for a
        simple gimple statement.  Now returns a simple bool.
        (scan_function): All non-analysis parts moved to separate functions
        sra_modify_function_body and ipa_sra_modify_function_body.  Removed all
        parameters and updated both callers.
        (sra_modify_expr): Removed parameter data.
        (sra_modify_function_body): New function.
        (perform_intra_sra): Call sra_modify_function_body to modify the
        function body.
        (replace_removed_params_ssa_names): Parameter data changed into
        adjustments vector.
        (sra_ipa_modify_expr): Likewise.  Also removed unused parameter gsi and
        changed the parameter dont_convert to convert with the opposite
        meaning.
        (sra_ipa_modify_assign): Parameter data changed into adjustments
        vector, return value changed to bool.
        (ipa_sra_modify_function_body): New function.
        (sra_ipa_reset_debug_stmts): Updated a comment.
        (modify_function): Use ipa_sra_modify_function_body to modify function
        body.

2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/43671
        * alias.c (true_dependence): Handle the same VALUE in x and mem.
        (canon_true_dependence): Likewise.
        (write_dependence_p): Likewise.

2010-05-04  Jan Hubicka  <jh@suse.cz>

        * Makefile.in (cgraphbuild.o): Add dependency on ipa-utils.h
        * cgraphbuild.c: Include ipa-utils.h
        (record_reference_ctx): New struct.
        (record_reference): Simplify to work on initializers; not statements.
        (mark_address, mark_load, mark_store): New.
        (build_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
        walk PHI nodes too.
        (record_references_in_initializer): Update use of record_reference.
        (rebuild_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
        walk PHI nodes too.

2010-05-04  Jan Hubicka  <jh@suse.cz>

        * lto-symtab.c (lto_cgraph_replace_node): Do not remove edges;
        node will be removed anyway.
        (lto_varpool_replace_node): Allow also unanalyzed nodes;
        relink aliases of node into prevailing node.
        * varpool.c (varpool_remove_node): Remove aliases properly;
        when removing node, remove all its aliases too; remove DECL_INITIAL
        of removed node; ggc_free the varpool node.

2010-05-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43879
        * tree-ssa-structalias.c (alias_get_name): Use
        DECL_ASSEMBLER_NAME if available.
        (create_function_info_for): Return the varinfo node.
        (ipa_pta_execute): Associate same-body aliases and extra names
        with their origin nodes varinfo.  Dump DECL_ASSEMBLER_NAME.

2010-05-04  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (sh_small_register_classes_for_mode_p): Remove static.

2010-05-04  Mikael Pettersson  <mikpe@it.uu.se>

        PR bootstrap/43964
        * ira-color.c (assign_hard_reg): Declare rclass and add_cost
        only if HONOR_REG_ALLOC_ORDER is not defined.

2010-05-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43949
        * tree-vrp.c (extract_range_from_binary_expr): Only handle
        TRUNC_MOD_EXPR.

2010-04-26  Jason Merrill  <jason@redhat.com>

        * c.opt (-fstrict-enums): New.
        * doc/invoke.texi (C++ Dialect Options): Document -fstrict-enums.

2010-05-03  David Ung <davidu@mips.com>
            James E. Wilson  <wilson@codesourcery.com>

        * config/mips/mips.c (mips_output_division): If GENERATE_DIVIDE_TRAPS,
        emit the trap instruction before the divide for TUNE_74K.

2010-05-03  Steven Bosscher  <steven@gcc.gnu.org>

        * doc/tm.texi (defmac SMALL_REGISTER_CLASSES): Remove.
        (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): Add documentation,
        based on the above, for new target hook.

        * hooks.c (hook_bool_mode_true): New generic hook.
        * hooks.h (hook_bool_mode_true): Add prototype.

        * target.h (struct gcc_target): Add small_register_classes_for_mode_p
        target hook.
        * target-def.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): New default
        target hook, set to hook_bool_mode_false.
        * regs.h: Remove default definition of SMALL_REGISTER_CLASSES.
        * reload.c (push_secondary_reload): Replace SMALL_REGISTER_CLASSES
        with targetm.small_register_classes_for_mode_p.
        (find_reusable_reload): Likewise.
        (combine_reloads): Likewise.
        * reload1.c (reload_as_needed): Likewise.
        * cse.c (approx_reg_cost_1, hash_rtx_cb): Likewise.
        * ifcvt.c (noce_process_if_block, check_cond_move_block,
        dead_or_predicable): Likewise.
        * regmove.c (optimize_reg_copy_1): Likewise.
        * calls.c (prepare_call_address): Likewise.
        (precompute_register_parameters): Likewise.

        * config/sh/sh.h: Replace SMALL_REGISTER_CLASSES with new target
        hook definition.
        * config/sh/sh.c (sh_small_register_classes_for_mode_p): Add
        implementation of the hook that considers all register classes
        small except for SH64.
        (sh_override_options): Use the new hook.
        * config/sh/sh-protos.h (sh_small_register_classes_for_mode_p):
        Add prototype.

        * config/arm/arm.h: Replace SMALL_REGISTER_CLASSES with new target
        hook definition.
        * config/arm/arm.c (arm_small_register_classes_for_mode_p): Add
        implementation of the hook that considers all register classes
        small for THUMB1.
        * config/arm/arm-protos.h (arm_small_register_classes_for_mode_p):
        Add prototype.

        * config/mips/mips.h: Replace SMALL_REGISTER_CLASSES with new target
        hook definition.
        * config/mips/mips.c (mips_small_register_classes_for_mode_p): Add
        implementation of the hook that considers all register classes
        small for MIPS16.
        * config/mips/mips-protos.h (mips_small_register_classes_for_mode_p):
        Add prototype.

        * config/i386/i386.h: Replace SMALL_REGISTER_CLASSES with new target
        hook definition.
        * config/m32c/m32c.h: Likewise.
        * config/pdp11/pdp11.h: Likewise.
        * config/avr/avr.h: Likewise.
        * config/xtensa/xtensa.h: Likewise.
        * config/m68hc11/m68hc11.h: Likewise.
        * config/mn10300/mn10300.h: Likewise.
        * config/mcore/mcore.h: Likewise.
        * config/h8300/h8300.h: Likewise.
        * config/bfin/bfin.h: Likewise.

        * config/iq2000/iq2000.h: Remove SMALL_REGISTER_CLASSES definition.
        * config/rx/rx.h: Remove SMALL_REGISTER_CLASSES definition.

2010-05-03  Anatoly Sokolov  <aesok@post.ru>

        * double-int.h (tree_to_double_int): Remove macro.
        (double_int_to_tree, double_int_fits_to_tree_p): Move prototypes ...
        * tree.h (double_int_to_tree, double_int_fits_to_tree_p): ... here.
        (tree_to_double_int): New function.
        * double-int.c (double_int_to_tree, double_int_fits_to_tree_p):
        Move ...
        * tree.c (double_int_to_tree, double_int_fits_to_tree_p): ... here.

2010-05-03  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43971
        * tree-ssa-structalias.c (get_constraint_for_1): Fix
        constraints in the !flag_delete_null_pointer_checks case.

2010-05-03  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43972
        * config/i386/i386.c (ix86_delegitimize_address): Make sure the
        result mode matches original rtl mode.

2010-05-03  Dave Korn  <dave.korn.cygwin@gmail.com>

        PR target/43888
        * config/i386/winnt.c (i386_pe_binds_local_p): Handle weak decls.

2010-05-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_target_string): Output 'flags', not 'isa',
        when processing flag options.

2010-05-02  Uros Bizjak  <ubizjak@gmail.com>

        * gcov-iov.c (main): Change format string placeholder
        from %#08x to 0x%08x.
        * genchecksum.c (dosum): Change format string placeholder
        from %#02x to 0x%02x.

2010-05-02  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43879
        * tree-tailcall.c (find_tail_calls): Clobbers also prevent tail calls.

2010-05-02  Bruno Haible  <bruno@clisp.org>

        * doc/extend.texi (Function Attributes): Fix a typo.

2010-05-02  Uros Bizjak  <ubizjak@gmail.com>

        Revert:
        * hwint.h (HOST_WIDE_INT_PRINT_DOUBLE_HEX): Change format string
        placeholder from 0x%x to %#x.
        (HOST_WIDEST_INT_PRINT_DOUBLE_HEX): Ditto.
        * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Ditto.
        * config/i386/i386-interix.h (ASM_OUTPUT_ASCII): Ditto.
        * config/i386/att.h (ASM_OUTPUT_ASCII): Ditto.
        * config/i386/sysv4.h (ASM_OUTPUT_ASCII): Ditto.
        * config/i386/i386.c (ix86_target_string): Ditto.
        * config/i386/i386.c (output_pic_addr_const): Ditto.
        (print_operand): Ditto.

2010-05-02  Uros Bizjak  <ubizjak@gmail.com>

        * vmsdbgout.c (ASM_OUTPUT_DEBUG_DATA1): Change format string
        placeholder from 0x%x to %#x.
        (ASM_OUTPUT_DEBUG_DATA1): Ditto.
        (ASM_OUTPUT_DEBUG_DATA4): Ditto.
        (ASM_OUTPUT_DEBUG_DATA): Ditto.
        (ASM_OUTPUT_DEBUG_ADDR_DATA): Ditto.
        (ASM_OUTPUT_DEBUG_DATA8): Ditto.
        * optc-gen.awk: Ditto.
        * hwint.h (HOST_WIDE_INT_PRINT_DOUBLE_HEX): Ditto.
        (HOST_WIDE_INT_PRINT_HEX): Ditto.
        (HOST_WIDEST_INT_PRINT_HEX): Ditto.
        (HOST_WIDEST_INT_PRINT_DOUBLE_HEX): Ditto.

2010-05-01  Anatoly Sokolov  <aesok@post.ru>

        * target.h (struct calls): Add function_value_regno_p field.
        * target-def.h (TARGET_FUNCTION_VALUE_REGNO_P): Define.
        (TARGET_INITIALIZER): Use TARGET_FUNCTION_VALUE_REGNO_P.
        * targhooks.c (default_function_value_regno_p): New function.
        * targhooks.h (default_function_value_regno_p): Declare function.
        * rtlanal.c (keep_with_call_p): Use function_value_regno_p hook.
        * builtins.c. (apply_result_size): (Ditto.).
        * combine.c. (likely_spilled_retval_p): (Ditto.).
        * mode-switching.c. Include 'target.h'.
        (create_pre_exit): Use function_value_regno_p hook.
        * Makefile.in (mode-switching.o): Add dependency on TARGET_H.
        * doc/tm.texi (FUNCTION_VALUE_REGNO_P,
        TARGET_FUNCTION_VALUE_REGNO_P): Revise documentation.

        * config/i386/i386.h (TARGET_FUNCTION_VALUE_REGNO_P): Remove macro.
        * config/i386/i386.c (TARGET_FUNCTION_VALUE_REGNO_P): Define macro.
        (ix86_function_value_regno_p): Declare as static, change argument
        type to const unsigned int.
        * config/i386/i386-protos.h (ix86_function_value_regno_p): Remove.

2010-05-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43949
        * tree-vrp.c (ssa_name_nonnegative_p): Return true for unsigned
        types.
        (extract_range_from_binary_expr): Handle *_MOD_EXPR.

2010-05-01  Anatoly Sokolov  <aesok@post.ru>

        * rtl.h (CONST_DOUBLE_P): Define.
        (rtx_to_double_int): Declare.
        * emit-rtl.c (rtx_to_double_int): New function.
        * dwarf2out.c (insert_double): New function.
        (loc_descriptor, add_const_value_attribute): Clean up, use
        rtx_to_double_int and insert_double functions.

2010-05-01  Jonathan Wakely  <jwakely.gcc@gmail.com>

        * doc/extend.texi (Inline): Add missing return keyword to examples.
        (Function Attributes, Variable Attributes, Pragmas): Hyphenate
        "command-line".

2010-04-30  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-loop-ivopts.c (may_be_unaligned_p): Check the alignment of
        the variable part of the offset as well.  Use highest_pow2_factor for
        all alignment checks.

2010-04-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43879
        * tree-ssa-structalias.c (type_could_have_pointers): Functions
        can have pointers.

2010-04-30  Jan Hubicka  <jh@suse.cz>

        * lto-symtab.c (lto_symtab_resolve_can_prevail_p): Chose var with
        varpool.
        (lto_symtab_merge_decls_1): Remove logic looking for an initializer.

2010-04-30  Jan Hubicka  <jh@suse.cz>

        * cgraph.h (cgraph_node_set_nonempty_p, varpool_node_set_nonempty_p):
        New.
        * lto-cgraph.c (input_cgraph): Remove call to lto_mark_file_for_ltrans.
        * lto-streamer.h (lto_file_decl_data): Remove needs_ltrans_p.
        (lto_file_needs_ltrans_p, lto_mark_file_for_ltrans,
        cgraph_node_set_needs_ltrans_p): Remove.

2010-04-30  Steven Bosscher  <steven@gcc.gnu.org>

        * sdbout.c: Include vec.h, do not include varray.h.
        (deferred_global_decls, sdbout_global_decl,
        sdbout_finish, sdbout_init): Use VEC instead of VARRAY.
        * toplev.c: Do not include varray.h.
        (dump_memory_report): Do not dump VARRAY statistics.
        * gengtype.c (open_base_file): Ignore varray.h.
        * Makefile.in: Update for abovementioned changes.
        Remove all traces of varray.c and varray.h.
        * varray.c: Remove file.
        * varray.h: Remove file.

2010-04-30  Jan Hubicka  <jh@suse.cz>

        * lto-cgraph.c (lto_output_varpool_node): Always output constant pool
        references.

2010-04-30  Jan Hubicka  <jh@suse.cz>

        * tree-profile.c (tree_init_ic_make_global_vars): Mark new decls as
        needed.

2010-04-30  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (get_constraint_for_1): Generate
        constraints for CONSTRUCTOR.

2010-04-30  Richard Guenther  <rguenther@suse.de>

        PR lto/43946
        * passes.c (init_optimization_passes): Move pass_ipa_free_lang_data
        first after all lowering passes.

2010-04-30  Steven Bosscher  <steven@gcc.gnu.org>

        * toplev.c: Include varray.h for statistics dumping.
        * tree.h: Do not declare varray_head_tag.
        * tree-into-ssa.c, tree-ssa-uninit.c, tree-phinodes.c, omega.c,
        regs.h, lto-cgraph.c, tree-ssa-loop-ivopts.c, tree-nomudflap.c,
        c-objc-common.c, lto-streamer-out.c, tree-ssa-propagate.c,
        gimple-low.c, c-semantics.c, dwarf2out.c, lto-streamer-in.c,
        lto-section-in.c, alias.c, tree-if-conv.c, gimplify.c, ggc-zone.c,
        tree-ssa.c, tree-ssa-loop-prefetch.c, integrate.h, c-gimplify.c,
        c-common.c, c-common.h, reg-stack.c, basic-block.h,
        tree-ssa-structalias.c, lto-section-out.c, tree-ssanames.c: Do not
        include varray.h.
        * Makefile.in: Update for abovementioned changes.

2010-04-30  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43942
        * tree.c (auto_var_in_fn_p): Return false for DECL_EXTERNAL vars.

2010-04-30  Hariharan Sandanagobalane  <hariharan@picochip.com>

        * config/picochip/picochip.c (picochip_legitimize_address): Define.
        Use this function to do machine-specific conversion.
        (picochip_legitimize_reload_address): Likewise.
        (picochip_legitimate_address_p): Check valid base register only if
        strict.
        (picochip_check_conditional_copy): Check for modw only if opnd is
        register.
        * config/picochip/picochip.h (LEGITIMIZE_RELOAD_ADDRESS): Use this
        to call the function in c.
        * config/picochip/picochip-protos.h
        (picochip_legitimize_reload_address): Define.
        * config/picochip/picochip.md (supported_compare1): Define.

2010-04-30  Jan Hubicka  <jh@suse.cz>

        * cgraph.h (cgraph_local_info): Remove for_functions_valid.
        (cgraph_global_info): Remove inlined.
        (LTO_cgraph_tag_names): Remove.
        (LTO_cgraph_tags, LCC_NOT_FOUND): Move to ...
        * lto-cgraph.c (LTO_cgraph_tags, LCC_NOT_FOUND): ... here;
        simplify cgraph tags and document.
        (lto_output_node): Use only LTO_cgraph_unavail_node and
        LTO_cgraph_analyzed_node; Do not save analzed, reachable,
        for_functions_valid, global info, process and output flags.
        (input_overwrite_node): Initialize estimated stack size and
        estimated growth.  Do not read flags we no longer store.
        (input_node): Likewise do not read info no longer stored.
        * ipa-inline.c (cgraph_mark_inline_edge): Do not set global.inlined
        flag.

2010-04-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43879
        * tree-ssa-structalias.c (get_constraint_for_1): Properly
        handle non-zero initializers.

2010-04-30  Richard Guenther  <rguenther@suse.de>

        * builtins.c (fold_builtin_1): Delete free (0).

2010-04-29  Jan Hubicka  <jh@suse.cz>

        * gengtype.c (open_base_files): Add lto-streamer.h
        * cgraph.h (cgraph_local_info): lto_file_data is now in GGC.
        (pass_ipa_cp): GGC collect.
        * toplev. (compile_file): Do not output symbols.
        * ipa-inline.c (pass_ipa_inline): Add ggc collect.
        * timevar.def (TV_VARPOOL, TV_IPA_LTO_DECL_INIT_IO,
        TV_IPA_LTO_DECL_MERGE, TV_IPA_LTO_CGRAPH_MERGE, TV_VAROUT): New.
        * lto-section-in.c: Include ggc.h
        (lto_new_in_decl_state): Alloc in GGC.
        (lto_delete_in_decl_state): Likewise.
        * ipa.c (pass_ipa_function_visibility, pass_ipa_whole_program):
        Collect.

2010-04-29  Bernd Schmidt  <bernds@codesourcery.com>

        PR target/42895
        * doc/tm.texi (ADJUST_REG_ALLOC_ORDER): Renamed from
        ORDER_REGS_FOR_LOCAL_ALLOC.  All instances of this macro changed.
        (HONOR_REG_ALLOC_ORDER): Describe new macro.
        * ira.c (setup_alloc_regs): Use ADJUST_REG_ALLOC_ORDER if defined.
        * ira-color.c (assign_hard_reg): Take prologue/epilogue costs into
        account only if HONOR_REG_ALLOC_ORDER is not defined.
        * config/arm/arm.h (HONOR_REG_ALLOC_ORDER): Define.
        * system.h (ORDER_REGS_FOR_LOCAL_ALLOC): Poison.

2010-04-29  Jon Grant  <04@jguk.org>

        * collect2.c (vflag): Change type from int to bool.
        (debug): Likewise.
        (helpflag): New global bool.
        (main): Set vflag and debug with boolean, not integer truth values.
        Accept new "--help" option and output usage text if found.
        * collect2.h (vflag): Update prototype.
        (debug): Likewise.

2010-04-29  H.J. Lu  <hongjiu.lu@intel.com>

        PR bootstrap/43936
        * plugin.h (flag_plugin_added): Moved out of invoke_plugin_callbacks.

2010-04-29  Richard Guenther  <rguenther@suse.de>

        PR bootstrap/43935
        * plugin.h (invoke_plugin_callbacks): Annotate arguments
        with ATTRIBUTE_UNUSED.

2010-04-29  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/43921
        * config/i386/i386.c (get_some_local_dynamic_name): Replace
        INSN_P with NONDEBUG_INSN_P.
        (distance_non_agu_define): Likewise.
        (distance_agu_use): Likewise.

2010-04-29  Bernd Schmidt  <bernds@codesourcery.com>

        From Dominique d'Humieres <dominiq@lps.ens.fr>
        PR bootstrap/43858
        * ifcvt.c (dead_or_predicable): Use df_simulate_find_defs to compute
        test_set.

2010-04-29  Brian Hackett  <bhackett1024@gmail.com>

        * plugin.h (invoke_plugin_callbacks): New inline function.
        * plugin.c (flag_plugin_added): New global flag.
        (add_new_plugin): Initialize above flag.
        (invoke_plugin_callbacks): Rename to ...
        (invoke_plugin_callbacks_full): ... this.

2010-04-28  Jan Hubicka  <jh@suse.cz>

        * lto-symtab.c (lto_symtab_entry_def) Add vnode.
        (lto_varpool_replace_node): New.
        (lto_symtab_resolve_symbols): Resolve varpool nodes.
        (lto_symtab_merge_decls_1): Prefer decls with varpool node.
        (lto_symtab_merge_cgraph_nodes_1): Merge varpools.
        * cgraph.h (varpool_node_ptr): New type.
        (varpool_node_ptr): New vector.
        (varpool_node_set_def): New structure.
        (varpool_node_set): New type.
        (varpool_node_set): New vector.
        (varpool_node_set_element_def): New structure.
        (varpool_node_set_element, const_varpool_node_set_element): New types.
        (varpool_node_set_iterator): New type.
        (varpool_node): Add prev pointers, add used_from_other_partition,
        in_other_partition.
        (varpool_node_set_new, varpool_node_set_find, varpool_node_set_add,
        varpool_node_set_remove, dump_varpool_node_set, debug_varpool_node_set,
        varpool_get_node, varpool_remove_node): Declare.
        (vsi_end_p, vsi_next, vsi_node, vsi_start, varpool_node_in_set_p,
        varpool_node_set_size): New inlines.
        * cgraph.c (dump_cgraph_node): Dump asm names of aliases.
        * tree-pass.h (varpool_node_set_def): Forward declare.
        (ipa_opt_pass_d): Summary writting takes vnode sets too.
        (ipa_write_optimization_summaries): Update prototype.
        * ipa-cp.c (ipcp_write_summary): Update.
        * ipa-reference.c (ipa_reference_write_summary): Update.
        * lto-cgraph.c (lto_output_varpool_node): New static function.
        (output_varpool): New function.
        (input_varpool_node): New static function.
        (input_varpool_1): New function.
        (input_cgraph): Input varpool.
        * ipa-pure-const.c (pure_const_write_summary): Update.
        * lto-streamer-out.c (lto_output): Update, output varpool too.
        (write_global_stream): Kill WPA hack.
        (produce_asm_for_decls): Update.
        (output_alias_pair_p): Handle variables.
        (output_unreferenced_globals): Output only needed partition of varpool.
        * ipa-inline.c (inline_write_summary): Update.
        * lto-streamer-in.c (lto_input_tree_ref, lto_input_tree): Do not build
        cgraph.
        * lto-section-in.c (lto_section_name): Add varpool and jump funcs.
        * ipa.c (hash_varpool_node_set_element, eq_varpool_node_set_element,
        varpool_node_set_new, varpool_node_set_add,
        varpool_node_set_remove, varpool_node_set_find, dump_varpool_node_set,
        debug_varpool_node_set): New functions.
        * passes.c (rest_of_decl_compilation): when in LTO do not finalize.
        (execute_one_pass): Process new decls too.
        (ipa_write_summaries_2): Pass around vsets.
        (ipa_write_summaries_1): Likewise.
        (ipa_write_summaries): Build vset; be more selective about cgraph nodes
        to add.
        (ipa_write_optimization_summaries_1): Pass around vsets.
        (ipa_write_optimization_summaries): Likewise.
        * varpool.c (varpool_get_node): New.
        (varpool_node): Update doubly linked lists.
        (varpool_remove_node): New.
        (dump_varpool_node): More dumping.
        (varpool_enqueue_needed_node): Update doubly linked lists.
        (decide_is_variable_needed): Kill ltrans hack.
        (varpool_finalize_decl): Kill lto hack.
        (varpool_assemble_decl): Skip decls in other partitions.
        (varpool_assemble_pending_decls): Update doubly linkes lists.
        (varpool_empty_needed_queue): Likewise.
        (varpool_extra_name_alias): Likewise.
        * lto-streamer.c (lto_get_section_name): Add vars section.
        * lto-streamer.h (lto_section_type): Update.
        (output_varpool, input_varpool): Declare.

2010-04-28  Mike Stump  <mikestump@comcast.net>

        * config/i386/darwin.h (CC1_SPEC): Ignore -mdynamic-no-pic for now.

2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>

        * lto-streamer-in.c (unpack_ts_type_value_fields): Replace test for
        record or union type with RECORD_OR_UNION_TYPE_P predicate.
        (lto_input_ts_type_tree_pointers): Likewise.
        * lto-streamer-out.c (pack_ts_type_value_fields): Likewise.
        (lto_output_ts_type_tree_pointers): Likewise.

2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>

        Uniquization of constants at the Tree level
        * tree.h (DECL_IN_CONSTANT_POOL): New macro.
        (tree_decl_with_vis): Add in_constant_pool bit, move shadowed_for_var_p
        bit to the end.
        (tree_output_constant_def): Declare.
        * gimplify.c (gimplify_init_constructor): When using block copy, first
        uniquize the constant constructor on the RHS.
        * lto-streamer-in.c (unpack_ts_decl_with_vis_value_fields): Deal with
        DECL_IN_CONSTANT_POOL flag.
        * lto-streamer-out.c (pack_ts_decl_with_vis_value_fields): Likewise.
        * varasm.c (make_decl_rtl): Deal with variables belonging to the global
        constant pool.
        (assemble_variable): Deal with symbols belonging to the tree constant
        pool.
        (get_constant_section): Add ALIGN parameter and simplify.
        (build_constant_desc): Build a VAR_DECL and attach it to the symbol.
        (assemble_constant_contents): Use the expression of the VAR_DECL.
        (output_constant_def_contents): Use the alignment of the VAR_DECL.
        (tree_output_constant_def): New global function.
        (mark_constant): Use the expression of the VAR_DECL.
        (place_block_symbol): Use the alignment of the VAR_DECL and the size of
        its expression.
        (output_object_block): Likewise and assemble the expression.

2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>

        * lto-streamer.c [LTO_STREAMER_DEBUG] (tree_htab, tree_hash_entry,
        hash_tree, eq_tree): New tree hash table.
        (lto_streamer_init) [LTO_STREAMER_DEBUG]: Initialize it.
        [LTO_STREAMER_DEBUG] (lto_orig_address_map, lto_orig_address_get,
        lto_orig_address_remove): Reimplement.

2010-04-28  Xinliang David Li  <davidxl@google.com>

        PR c/42643
        * tree-ssa-uninit.c (can_skip_redundant_opnd): New function.
        (compute_uninit_opnds_pos): New function.
        (is_non_loop_exit_postdominating): New function.
        (compute_control_dep_chain): New function.
        (find_pdom): New function.
        (convert_control_dep_chain_into_preds): New function.
        (find_predicates): New function.
        (find_control_equiv_block): New function.
        (collect_phi_def_edges): New function.
        (find_def_preds): New function.
        (find_dom): New function.
        (dump_predicates): New function.
        (get_cmp_code): New function.
        (is_value_included_in): New function.
        (find_matching_predicate_in_rest_chains): New function.
        (use_pred_not_overlap_with_undef_path_pred): New function.
        (is_use_properly_guarded): New function.
        (normalize_cond_1): New function.
        (is_and_or_or): New function.
        (normalize_cond): New function.
        (is_gcond_subset_of): New function.
        (is_subset_of_any): New function.
        (is_or_set_subset_of): New function.
        (is_and_set_subset_of): New function.
        (is_norm_cond_subset_of): New function.
        (is_pred_expr_subset_of): New function.
        (is_pred_chain_subset_of): New function.
        (is_included_in): New function.
        (is_superset_of): New function.
        (find_uninit_use): New function.
        (warn_uninitialized_phi): New function.
        (compute_possibly_undefined_names): New function.
        (ssa_undefined_value_p): New function.
        (execute_late_warn_uninitialized): New function.
        * tree-ssa.c (ssa_undefined_value_p): Removed.
        (warn_uninit): Changed to extern.
        (warn_uninitialized_phi): Removed.
        (warn_uninitialized_vars): Changed to extern.
        (execute_late_warn_uninitialized): Removed
        * tree-flow.h: Add new prototypes.
        * timevar.def: Add new time variable.
        * Makefile.in: Add new build file.

2010-04-28  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Use gnu_unique_object
        type if available.

2010-04-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR target/22224
        * config/alpha/osf5.h (ASM_OUTPUT_LOCAL): Redefine.

2010-04-28  Martin Jambor  <mjambor@suse.cz>

        * cgraph.h (struct cgraph_node): New field indirect_calls.
        (struct cgraph_indirect_call_info): New type.
        (struct cgraph_edge): Removed field indirect_call. New fields
        indirect_info, indirect_inlining_edge and indirect_unknown_callee.
        (cgraph_create_indirect_edge): Declare.
        (cgraph_make_edge_direct): Likewise.
        (enum LTO_cgraph_tags): New item LTO_cgraph_indirect_edge.
        * ipa-prop.h (struct ipa_param_call_note): Removed.
        (struct ipa_node_params): Removed field param_calls.
        (ipa_create_all_structures_for_iinln): Declare.
        * cgraph.c: Described indirect edges and uids in initial comment.
        (cgraph_add_edge_to_call_site_hash): New function.
        (cgraph_edge): Search also among the indirect edges, use
        cgraph_add_edge_to_call_site_hash to add edges to the call site hash.
        (cgraph_set_call_stmt): Possibly turn an indirect edge into a direct
        one, use cgraph_add_edge_to_call_site_hash to add edges to the call
        site hash.
        (initialize_inline_failed): Assign a reason to indirect edges.
        (cgraph_create_edge_1): New function.
        (cgraph_create_edge): Moved some functionality to
        cgraph_create_edge_1.
        (cgraph_create_indirect_edge): New function.
        (cgraph_edge_remove_callee): Add an assert checking for
        non-indirectness.
        (cgraph_edge_remove_caller): Special-case indirect edges.
        (cgraph_remove_edge): Likewise.
        (cgraph_set_edge_callee): New function.
        (cgraph_redirect_edge_callee): Use cgraph_set_edge_callee.
        (cgraph_make_edge_direct): New function.
        (cgraph_update_edges_for_call_stmt_node): Do nothing only when also
        the declaration of the call statement matches.
        (cgraph_node_remove_callees): Special-case indirect edges.
        (cgraph_clone_edge): Likewise.
        (cgraph_clone_node): Clone also the indirect edges.
        (dump_cgraph_node): Dump indirect_inlining_edge flag instead of
        indirect_call, dump count of indirect_calls edges.
        * ipa-prop.c (iinlining_processed_edges): New variable.
        (ipa_note_param_call): Create indirect edges instead of
        creating notes.  New parameter node.
        (ipa_analyze_call_uses): New parameter node, pass it on to
        ipa_note_param_call.
        (ipa_analyze_stmt_uses): Likewise.
        (ipa_analyze_params_uses): Pass node to ipa_analyze_stmt_uses.
        (print_edge_addition_message): Work on edges rather than on notes.
        (update_call_notes_after_inlining): Likewise, renamed to
        update_indirect_edges_after_inlining.
        (ipa_create_all_structures_for_iinln): New function.
        (ipa_free_node_params_substructures): Do not free notes.
        (ipa_edge_duplication_hook): Propagate bits within
        iinlining_processed_edges bitmap.
        (ipa_node_duplication_hook): Do not duplicate notes.
        (free_all_ipa_structures_after_ipa_cp): Renamed to
        ipa_free_all_structures_after_ipa_cp.
        (free_all_ipa_structures_after_iinln): Renamed to
        ipa_free_all_structures_after_iinln.
        (ipa_write_param_call_note): Removed.
        (ipa_read_param_call_note): Removed.
        (ipa_write_indirect_edge_info): New function.
        (ipa_read_indirect_edge_info): Likewise.
        (ipa_write_node_info): Do not stream notes, do stream information
        in indirect edges.
        (ipa_read_node_info): Likewise.
        (lto_ipa_fixup_call_notes): Removed.
        * ipa-cp.c (pass_ipa_cp): Set stmt_fixup to NULL.
        * ipa-inline.c (pass_ipa_inline): Likewise.
        * cgraphunit.c (verify_cgraph_node): Check also indirect edges.
        * cif-code.def (INDIRECT_UNKNOWN_CALL): New reason.
        * tree-inline.c (copy_bb): Removed an unnecessary double check for
        is_gimple_call.
        * tree-inline.c (get_indirect_callee_fndecl): Do not consider indirect
        edges.
        * lto-cgraph.c (output_outgoing_cgraph_edges): New function.
        (output_cgraph): Stream also indirect edges.
        (lto_output_edge): Added capability to stream indirect edges.
        (input_edge): Likewise.
        (input_cgraph_1): Likewise.
        * lto-streamer-in.c (fixup_call_stmt_edges_1): Fixup also statements
        of indirect edges.

2010-04-28  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43879
        PR tree-optimization/43909
        * tree-ssa-structalias.c (struct variable_info): Add
        only_restrict_pointers flag.
        (new_var_info): Initialize it.  Increment stats.total_vars here.
        (create_function_info_for): Do not increment stats.total_vars here.
        (get_function_part_constraint): Fix build with C++.
        (insert_into_field_list): Remove.
        (push_fields_onto_fieldstack): Properly merge fields.
        (create_variable_info_for): Split and simplify.
        (create_variable_info_for_1): New piece.
        (intra_create_variable_infos): Properly make restrict constraints
        from parameters.

2010-04-28  Richard Guenther  <rguenther@suse.de>

        PR c++/43880
        * tree-inline.c (copy_bind_expr): Also copy bind expr vars value-exprs.

2010-04-27  Manuel López-Ibáñez  <manu@gcc.gnu.org>
            Jan Hubicka <hubicka@ucw.cz>

        * doc/invoke.texi (-Wsuggest-attribute=const,
        -Wsuggest-attribute=pure): Document.
        * ipa-pure-const.c: Include toplev.h, intl.h and opts.h.
        (function_always_visible_to_compiler_p,
        suggest_attribute, warn_function_pure, warn_function_const):
        New functions.
        (check_call): Improve debug info.
        (analyze_function): Do not check availability.
        (add_new_function): Check availability.
        (propagate): Output warnings.
        (skip_function_for_local_pure_const): New function.
        (local_pure_const): Use it; output warnings.
        * common.opt (Wsuggest-attribute=const,
        Wsuggest-attribute=pure): New.

2010-04-27  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (def_cfa_1): After DW_CFA_def_cfa_expression
        force using DW_CFA_def_cfa instead of DW_CFA_def_cfa_register
        or DW_CFA_def_cfa_offset{,_sf}.

2010-04-27  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.h: Fix truncated long macros.

2010-04-27  Kai Tietz  <kai.tietz@onevision.com>

        * collect2.c (TARGET_64BIT): Redefine to target's default.
        * tlink.c: Likewise.
        * config/i386/cygming.h (USER_LABEL_PREFIX): Define
        dependent to TARGET_64BIT and USE_MINGW64_LEADING_UNDERSCORES.
        * config/i386/i386.h (CRT_CALL_STATIC_FUNCTION): Use
        for underscoring __USER_LABEL_PREFIX__.
        * config/i386/mingw-w64.h (SUB_LINK_ENTRY): New macro.
        (SUB_LINK_ENTRY32): New.
        (SUB_LINK_ENTRY64): New.
        (LINK_SPEC): Replace entry point spec by SUB_LINK_ENTRY.
        * config/i386/mingw32 (SUB_LINK_ENTRY32): New.
        (SUB_LINK_ENTRY64): New.
        (SUB_LINK_ENTRY): New.
        (LINK_SPEC): Use SUB_LINK_ENTRY instead of hard-coded entry-point.
        (DWARF2_UNWIND_INFO): Error out for use of dw2 unwind when
        x64 target is choosen.
        * config.in (USE_MINGW64_LEADING_UNDERSCORES): New.
        * configure: Regenerated.
        * configure.ac (leading-mingw64-underscores): Option added.

2010-04-27  Jan Hubicka  <jh@suse.cz>

        * doc/invoke.texi (-fipa-profile): Document.
        * opts.c (decode_options): Enable ipa-profile at -O1.
        * timevar.def (TV_IPA_PROFILE): Define.
        * common.opt (fipa-profile): Add.
        * cgraph.c (cgraph_clone_node): Set local flag and clear vtable method
        flag for clones.
        (cgraph_propagate_frequency): Handle only local ones.
        * tree-pass.h (pass_ipa_profile): Declare.
        * ipa-profile.c (gate_profile): Use flag_ipa_profile.
        (pass_ipa_profile): Use TV_IPA_PROFILE.
        * ipa.c (ipa_profile): New function.
        (gate_ipa_profile): Likewise.
        (pass_ipa_profile): New global variable.
        * passes.c (pass_ipa_profile): New.

2010-04-27  Nathan Froyd  <froydnj@codesourcery.com>

        * config/arm/arm.c (arm_expand_builtin): Remove redundant declaration.

2010-04-27  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/43812
        * ipa.c (dissolve_same_comdat_group_list): New function.
        (function_and_variable_visibility): Call
        dissolve_same_comdat_group_list when comdat group contains external or
        newly local nodes.
        * cgraphunit.c (verify_cgraph_node): Verify that same_comdat_group
        lists are circular and that they contain only DECL_ONE_ONLY nodes.

2010-04-27  Eric Botcazou  <ebotcazou@adacore.com>

        * varasm.c (decode_addr_const): Handle special case of INDIRECT_REF.
        (const_hash_1) <VECTOR_CST>: New case.
        (compare_constant) <VECTOR_CST>: Likewise.
        <ADDR_EXPR>: Deal with LABEL_REFs.
        (copy_constant) <VECTOR_CST>: New case.

2010-04-27  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_propagate_frequency): New function.
        * cgraph.h (cgraph_propagate_frequency): Declare.
        * ipa-inline.c (cgraph_clone_inlined_nodes): Call
        cgraph_propagate_frequency.

2010-04-27  Jakub Jelinek  <jakub@redhat.com>

        * unwind-dw2.c (_Unwind_DebugHook): Add used and noclone attributes.

2010-04-27  Bernd Schmidt  <bernds@codesourcery.com>

        PR target/40657
        * config/arm/arm.c (thumb1_extra_regs_pushed): New function.
        (thumb1_expand_prologue, thumb1_output_function_prologue): Call it
        here to determine which regs to push and how much stack to reserve.

2010-04-27  Jie Zhang  <jie@codesourcery.com>

        * doc/gimple.texi (gimple_statement_with_ops): Remove
        addresses_taken field.
        (gimple_statement_with_memory_ops): Likewise.

2010-04-27  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (eni_inlining_weights): Remove.
        (estimate_num_insns): Special case more builtins.

2010-04-27  Shujing Zhao  <pearly.zhao@oracle.com>

        PR c/32207
        * c-typeck.c (build_binary_op): Move forward check for comparison
        pointer with null pointer constant and adjust the diagnostic message.

2010-04-27  Dave Korn  <dave.korn.cygwin@gmail.com>

        PR lto/42776
        * configure.ac (gcc_cv_as_section_has_align): Set if installed
        binutils supports extended .section directive needed by LTO, or
        warn if older binutils found.
        (LTO_BINARY_READER): New AC_SUBST'd variable.
        (LTO_USE_LIBELF): Likewise.
        * gcc/config.gcc (lto_binary_reader): New target-specific configure
        variable.
        * gcc/Makefile.in (LTO_BINARY_READER): Import AC_SUBST'd autoconf var.
        (LTO_USE_LIBELF): Likewise.
        * configure: Regenerate.

        * collect2.c (is_elf): Rename from this ...
        (is_elf_or_coff): ... to this, and recognize and allow i386 COFF
         object files in addition to ELF-formatted ones.
        (scan_prog_file): Caller updated.  Also allow for LTO info marker
        symbol to be prefixed or not by an extra underscore.

        * config/i386/t-cygming (winnt.o): Also depend on LTO_STREAMER_H.
        * config/i386/winnt.c: Also #include lto-streamer.h
        (i386_pe_asm_named_section): Specify 1-byte section alignment for
        LTO named sections.
        (i386_pe_asm_output_aligned_decl_common): Add comment.
        (i386_pe_maybe_record_exported_symbol): Allow decl arg to be NULL.

2010-04-27  Hans-Peter Nilsson  <hp@bitrange.com>

        PR target/43889
        * config/mmix/mmix.md ("*divdi3_nonknuth", "*moddi3_nonknuth"):
        Add missing earlyclobber for second alternative.

2010-04-26  Bernd Schmidt  <bernds@codesourcery.com>

        * df-problems.c (df_simulate_initialize_forwards): Set, don't clear,
        bits for artificial defs at the top of the block.
        * fwprop.c (single_def_use_enter_block): Don't call it.

2010-04-26  Jack Howarth <howarth@bromo.med.uc.edu>

        PR 43715
        * gcc/configure.ac: Use "$gcc_cv_nm -g" on darwin
        instead of "$gcc_cv_objdump -T".
        Use "-undefined dynamic_lookup" on darwin.
        * gcc/configure: Regenerate.

2010-04-26  Jakub Jelinek  <jakub@redhat.com>

        PR c/43893
        * c-omp.c (c_finish_omp_for): Handle also EQ_EXPR.

2010-04-26  Nathan Froyd  <froydnj@codesourcery.com>

        * c-parser.c (struct c_token): Move location field up.
        * c-tree.h (struct c_typespec): Move expr_const_operands field up.
        (struct c_declspecs): Convert typespec_word, storage_class, and
        default_int_p into bitfields.
        (struct c_declarator): Move loc field up.

2010-04-26  Nathan Froyd  <froydnj@codesourcery.com>

        * cfgloop.h (struct loop): Move can_be_parallel field up.
        * ipa-prop.h (struct ip_node_params): Move bitfields up.
        * tree-ssa-loop-ivopts.c (struct version_info): Move inv_id field
        down.
        (struct iv_cand): Convert pos field into a bitfield.
        * tree-vectorizer.h (struct _loop_vec_info): Move loop_line_number
        field up.
        (struct _stmt_vec_info): Shuffle fields for better packing.

2010-04-26  Eric Botcazou  <ebotcazou@adacore.com>

        * varasm.c (IN_NAMED_SECTION): Remove guard.
        * config/arm/unknown-elf.h (IN_NAMED_SECTION): Rename to...
        (IN_NAMED_SECTION_P): ...this.
        (ASM_OUTPUT_ALIGNED_BSS): Adjust for above renaming.
        (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Likewise.

2010-04-26  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_cond_expr): Use THEN_ and ELSE_ local variables.
        Use VOID_TYPE_P for all void type tests.  Adjust TYPE variable instead
        of shadowing it.  Fix comments.

2010-04-26  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_create_node): Set node frequency to normal.
        (cgraph_clone_node): Copy function frequency.
        * cgraph.h (node_frequency): New enum
        (struct cgraph_node): Add.
        * final.c (rest_of_clean_state): Update.
        * lto-cgraph.c (lto_output_node): Output node frequency.
        (input_overwrite_node): Input node frequency.
        * tre-ssa-loop-ivopts (computation_cost): Update.
        * lto-streamer-out.c (output_function): Do not output function
        frequency.
        * predict.c (maybe_hot_frequency_p): Update and handle functions
        executed once.
        (cgraph_maybe_hot_edge_p): Likewise; use cgraph frequency instead of
        attribute lookup.
        (probably_never_executed_bb_p, optimize_function_for_size_p): Update.
        (compute_function_frequency): Set noreturn functions to be executed
        once.
        (choose_function_section): Update.
        * lto-streamer-in.c (input_function): Do not input function frequency.
        * function.c (allocate_struct_function): Do not initialize function
        frequency.
        * function.h (function_frequency): Remove.
        (struct function): Remove function frequency.
        * ipa-profile.c (CGRAPH_NODE_FREQUENCY): Remove.
        (try_update): Update.
        * tree-inline.c (initialize_cfun): Do not update function frequency.
        * passes.c (pass_init_dump_file): Update.
        * i386.c (ix86_compute_frame_layout): Update.
        (ix86_pad_returns): Update.

2010-04-26  Jie Zhang  <jie@codesourcery.com>

        PR tree-optimization/43833
        * tree-vrp.c (range_int_cst_p): New.
        (range_int_cst_singleton_p): New.
        (extract_range_from_binary_expr): Optimize BIT_AND_EXPR case
        when both operands are constants.  Use range_int_cst_p in
        BIT_IOR_EXPR case.

2010-04-26  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (cgraph_copy_node_for_versioning): Fix profile updating.

2010-04-26  Richard Guenther  <rguenther@suse.de>

        PR lto/43080
        * gimple.c (gimple_decl_printable_name): Deal gracefully
        with a NULL DECL_NAME.

2010-04-26  Richard Guenther  <rguenther@suse.de>

        PR lto/42425
        * tree.c (free_lang_data_in_type): Do not free TYPE_CONTEXT
        if emitting debug information and it is either a function
        or a namespace decl.

2010-04-26  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.h (struct _stmt_vec_info): Add new field to
        determine if the statement is vectorizable, and a macro to access it.
        * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
        Skip statements that can't be vectorized. If the analysis fails,
        mark the statement as unvectorizable if vectorizing basic block.
        (vect_compute_data_refs_alignment): Likewise.
        (vect_verify_datarefs_alignment): Skip statements marked as
        unvectorizable. Add print.
        (vect_analyze_group_access): Skip statements that can't be
        vectorized. If the analysis fails, mark the statement as
        unvectorizable if vectorizing basic block.
        (vect_analyze_data_ref_accesses, vect_analyze_data_refs): Likewise.
        * tree-vect-stmts.c (vectorizable_store): Fix the number of
        generated stmts for SLP.
        (new_stmt_vec_info): Initialize the new field.
        * tree-vect-slp.c (vect_build_slp_tree): Fail to vectorize
        statements marked as unvectorizable.

2010-04-25  Joseph Myers  <joseph@codesourcery.com>

        * c-common.c (flag_isoc1x): New.
        (flag_isoc99): Update comment.
        * c-common.h (flag_isoc1x): New.
        (flag_isoc99): Update comment.
        * c-cppbuiltin.c (builtin_define_float_constants): Also define
        __<type>_DECIMAL_DIG__.
        * c-opts.c (set_std_c1x): New.
        (c_common_handle_option): Handle -std=c1x and -std=gnu1x.
        (set_std_c89, set_std_c99): Also set flag_isoc1x to 0.
        * c.opt (-std=c1x, -std=gnu1x): New options.
        * doc/cpp.texi: Mention -std=c1x.
        * doc/cppopts.texi (-std=c1x, -std=gnu1x): Document.
        * doc/extend.texi: Mention -std=c1x and -std=gnu1x.
        * doc/invoke.texi (-std=c1x, -std=gnu1x): Document.
        * doc/standards.texi: Mention C1X.
        * ginclude/float.h (FLT_DECIMAL_DIG, DBL_DECIMAL_DIG,
        LDBL_DECIMAL_DIG, FLT_HAS_SUBNORM, DBL_HAS_SUBNORM,
        LDBL_HAS_SUBNORM, FLT_TRUE_MIN, DBL_TRUE_MIN, LDBL_TRUE_MIN):
        Define for C1X.

2010-04-25  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/gmon-sol2.c (_mcleanup): Change format string
        placeholder from 0x%x to %#x.
        * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Ditto.
        * config/i386/i386-interix.h (ASM_OUTPUT_ASCII): Ditto.
        * config/i386/att.h (ASM_OUTPUT_ASCII): Ditto.
        * config/i386/sysv4.h (ASM_OUTPUT_ASCII): Ditto.
        * config/i386/i386.c (ix86_target_string): Ditto.
        (output_pic_addr_const): Ditto.
        (print_operand): Ditto.

2010-04-25  Paolo Bonzini  <bonzini@gnu.org>

        * combine.c (find_split_point): Add third argument.  Use it
        to find nested multiply-accumulate instructions.  Adjust calls.
        (try_combine): Adjust call to find_split_point.

2010-04-24  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/contrib.texi (Contributors): Add Dodji Seketeli.

2010-04-24  Bernd Schmidt  <bernds@codesourcery.com>

        PR tree-optimization/41442
        * fold-const.c (merge_truthop_with_opposite_arm): New function.
        (fold_binary_loc): Call it.

2010-04-23  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * toplev.c (general_init): Set default for fdiagnostics-show-option.
        * opts.c (common_handle_option): Allow disabling it.
        * common.opt (fdiagnostics-show-option): Add Var. Enabled by default.

2010-04-23  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.c (expand_expr_real_1) <VIEW_CONVERT_EXPR>: Only use conversion
        between modes if both types are integral.

2010-04-23  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43572
        * tree-tailcall.c (find_tail_calls): Allow PARM_DECL uses.

2010-04-23  Richard Guenther  <rguenther@suse.de>

        PR lto/43455
        * tree-inline.c (tree_can_inline_p): Also check compatibility
        of return types.

2010-04-23  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/43846
        * tree-sra.c (struct access): New flag grp_assignment_read.
        (build_accesses_from_assign): Set grp_assignment_read.
        (sort_and_splice_var_accesses): Propagate grp_assignment_read.
        (enum mark_read_status): New type.
        (analyze_access_subtree): Propagate grp_assignment_read, create
        accesses also if both direct_read and root->grp_assignment_read.

2010-04-23  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/43835
        * tree-sra.c (ipa_sra_preliminary_function_checks): Check that the
        function does not have type attributes.

2010-04-23  Richard Guenther  <rguenther@suse.de>

        PR lto/42653
        * tree.c (free_lang_data_in_decl): Do not reset DECL_CONTEXT
        of FUNCTION_DECLs.

2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>

        * sese.h (create_if_region_on_edge): Remove.

        * sese.c (create_if_region_on_edge): Make static.

        * tree-inline.c: Do not include ggc.h.

        * expr.c: Do not include ggc.h.

        * Makefile.in (tree-inline.o, expr.o): Remove $(GGC_H) from
        dependencies.

2010-04-22  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/43744
        * config/sh/sh.c (find_barrier): Don't emit a constant pool
        in the middle of insns for casesi_worker_2.

2010-04-22  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/x-aix: Override LDFLAGS for all COMPILERS.

2010-04-22  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/43842
        * tree-vect-loop.c (vect_create_epilog_for_reduction): Handle
        loop unrolling in update of exit phis. Fix comment.
        * tree-vect-slp.c (vect_analyze_slp): Check that there are at
        least two reduction statements in the loop before starting SLP
        analysis.

2010-04-22  Nick Clifton  <nickc@redhat.com>

        * config/stormy16/stormy16-lib2.c (__ucmpsi2): Fix thinko.

2010-04-22  Alexander Monakov  <amonakov@ispras.ru>

        * tree-ssa-reassoc.c (eliminate_plus_minus_pair): Handle BIT_NOT_EXPR
        to simplify a + ~a.

2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>

        * tree-parloops.c (loop_parallel_p): New argument
        parloop_obstack.  Pass it down.
        (parallelize_loops): New variable parloop_obstack.  Initialize it,
        pass it down, free it.

        * tree-loop-linear.c (linear_transform_loops): Pass down
        lambda_obstack.

        * tree-data-ref.h (lambda_compute_access_matrices): New argument
        of type struct obstack *.

        * tree-data-ref.c (analyze_subscript_affine_affine): New variable
        scratch_obstack.  Initialize it, pass down, free it.

        * lambda.h (lambda_loop_new): Remove.
        (lambda_matrix_new, lambda_matrix_inverse)
        (lambda_trans_matrix_new, lambda_trans_matrix_inverse): New
        argument of type struct obstack *.

        * lambda-trans.c (lambda_trans_matrix_new): New argument
        lambda_obstack.  Pass it down, use obstack allocation for ret.
        (lambda_trans_matrix_inverse): New argument lambda_obstack.  Pass
        it down.

        * lambda-mat.c (lambda_matrix_get_column)
        (lambda_matrix_project_to_null): Remove.
        (lambda_matrix_new): New argument lambda_obstack.  Use obstack
        allocation for mat.
        (lambda_matrix_inverse_hard, lambda_matrix_inverse): New argument
        lambda_obstack.

        * lambda-code.c (lambda_loop_new): New function.
        (lambda_lattice_new, compute_nest_using_fourier_motzkin)
        (lambda_compute_auxillary_space, lambda_compute_target_space)
        (lambda_loopnest_transform, gcc_loop_to_lambda_loop)
        (lambda_loopnest_to_gcc_loopnest): Pass down lambda_obstack.
        (build_access_matrix): New argument lambda_obstack.  Use obstack
        allocation for am.
        (lambda_compute_step_signs, lambda_compute_access_matrices): New
        argument lambda_obstack.  Pass it down.

2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>

        * optabs.h (expand_widening_mult): Declare.

2010-04-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43845
        * tree-ssa-pre.c (create_component_ref_by_pieces_1): Properly
        lookup the CALL_EXPR function and arguments.

2010-04-22  Nick Clifton  <nickc@redhat.com>

        * config/stormy16/stormy16.c
        (xstormy16_asm_output_aligned_common): Handle a NULL decl parameter.
        * config/stormy16/stormy16.h: Tidy up formatting.
        (DONT_USE_BUILTIN_SETJMP): Remove definition.
        * config/stormy16/stormy16.c (cbranchsi4): Delete pattern.
        (ineqbranchsi): Delete pattern.
        * config/stormy16/stormy16-lib2-ucmpsi2.c: New file.
        * config/stormy16/stormy16-lib2.c (__ucmpsi2): New function.
        * config/stormy16/t-stormy16 (LIB2FUNCS_EXTRA): Add
        stormy16-lib2-ucmpsi2.c.

2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>

        * ifcvt.c (dead_or_predicable): Use df_simulate_find_defs and
        df_simulate_find_noclobber_defs as appropriate.  Keep track of an
        extra set merge_set_noclobber, and use it to relax the final test
        slightly.
        * df.h (df_simulate_find_noclobber_defs): Declare.
        * df-problems.c (df_simulate_find_defs): Don't ignore partial or
        conditional defs.
        (df_simulate_find_noclobber_defs): New function.

2010-04-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md: Use {} around multi-line preparation statements.

2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>

        * c-tree.h (push_init_level, pop_init_level, set_init_index)
        (process_init_element): New argument of type struct obstack *.

        * c-typeck.c (push_init_level, pop_init_level, set_designator)
        (set_init_index, set_init_label, set_nonincremental_init)
        (set_nonincremental_init_from_string, find_init_member)
        (output_init_element, output_pending_init_elements)
        (process_init_element): New argument braced_init_obstack.  Pass it
        down.
        (push_range_stack, add_pending_init): New argument
        braced_init_obstack.  Use obstack allocation.

        * c-parser.c (c_parser_initelt, c_parser_initval): New argument
        braced_init_obstack.  Pass it down.
        (c_parser_braced_init): New variables ret, braced_init_obstack.
        Initialize obstack, pass it down and finally free it.

2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>

        PR middle-end/29274
        * tree-pass.h (pass_optimize_widening_mul): Declare.
        * tree-ssa-math-opts.c (execute_optimize_widening_mul,
        gate_optimize_widening_mul): New static functions.
        (pass_optimize_widening_mul): New.
        * expr.c (expand_expr_real_2) <case WIDEN_MULT_EXPR>: New case.
        <case MULT_EXPR>: Remove support for widening multiplies.
        * tree.def (WIDEN_MULT_EXPR): Tweak comment.
        * cfgexpand.c (expand_debug_expr) <case WIDEN_MULT_EXPR>: Use
        simplify_gen_unary rather than directly building extensions.
        * tree-cfg.c (verify_gimple_assign_binary): Add tests for
        WIDEN_MULT_EXPR.
        * expmed.c (expand_widening_mult): New function.
        * passes.c (init_optimization_passes): Add pass_optimize_widening_mul.

2010-04-21  Jan Hubicka  <jh@suse.cz>

        * timevar.def (TV_WHOPR_WPA_FIXUP): Remove.
        * lto-section-in.c (lto_section_name): Remove wpa_fixup.
        * lto-wpa-fixup.c: Remove.
        * Makefile.in (lto-wpa-fixup.o): Remove.
        * passes.c (init_optimization_passes): Remove pass_ipa_lto_wpa_fixup.
        (execute_all_ipa_transforms): Set cgraph_state to CGRAPH_STATE_IPA_SSA.
        * lto-streamer.c (lto_get_section_name): Remove wpa_fixup section.

2010-04-21  Jan Hubicka  <jh@suse.cz>

        * tree-pass.h (ipa_opt_pass_d): Rename function_read_summary;
        add write_optimization_summary, read_optimization_summary.
        (ipa_write_summaries_of_cgraph_node_set): Remove.
        (ipa_write_optimization_summaries): Declare.
        (ipa_read_optimization_summaries): Declare.
        * ipa-cp.c (pass_ipa_cp): Update.
        * ipa-reference.c (pass_ipa_reference): Update.
        * ipa-pure-const.c (pass_ipa_pure_const): Update.
        * lto-streamer-out.c (pass_ipa_lto_gimple, pass_ipa_lto_finish):
        Update.
        * ipa-inline.c (pass_ipa_inline): Update.
        * ipa.c (pass_ipa_whole_program): Update.
        * lto-wpa-fixup.c (pass_ipa_lto_wpa_fixup): Update.
        * passes.c (ipa_write_summaries_1): Do not test wpa.
        (ipa_write_optimization_summaries_1): New.
        (ipa_write_optimization_summaries): New.
        (ipa_read_summaries): Do not test ltrans.
        (ipa_read_optimization_summaries_1): New.
        (ipa_read_optimization_summaries): New.

2010-04-21  Jan Hubicka  <jh@suse.cz>

        * lto-cgraph.c (lto_output_node): Do not output comdat groups
        for boundary nodes.
        (output_cgraph): Do not arrange comdat groups for boundary nodes.

2010-04-21  Jakub Jelinek  <jakub@redhat.com>

        PR debug/40040
        * dwarf2out.c (add_name_and_src_coords_attributes): Add
        DW_AT_{,MIPS_}linkage_name even for Fortran decls.

2010-04-21  Jan Hubicka  <jh@suse.cz>

        * ipa-prop.c (ipa_edge_removal_hook): Check for bounds.

2010-04-21  Jan Hubicka  <jh@suse.cz>

        * varpool.c (decide_is_variable_needed): Variable is always needed
        during ltrans.

2010-04-21  Jan Hubicka  <jh@suse.cz>

        * opts.c (decode_options): Enable pure-const pass for whopr.

2010-04-21  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (dump_cgraph_node): Dump also assembler name.
        * ipa-inline.c (cgraph_decide_inlining_of_small_functions): Do not ice
        at WPA dumping.
        (cgraph_decide_inlining): Do not expect callee to be removed in all
        cases.

2010-04-21  Eric B. Weddington  <eric.weddington@atmel.com>

        * config/avr/avr-devices.c (avr_mcu_types): Add missing comma.

2010-04-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (x86_shrd): Add athlon_decode and
        amdfam10_decode attributes.

2010-04-21  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/43570
        * omp-low.c (scan_sharing_clauses): Don't scan_omp_op
        OMP_CLAUSE_DECL for OMP_CLAUSE_COPYPRIVATE.
        (lower_copyprivate_clauses): Use private var in outer
        context instead of original var.  Make sure the types
        are correct for VLAs.

2010-04-21  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (do_ds_constraint): Avoid escaping
        to non-pointer objects.

2010-04-21  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (add_var_loc_to_decl): Add LABEL argument.  Drop
        last chain entry if it starts with the still current label.
        (add_location_or_const_value_attribute): Check that
        loc_list->first->next is NULL instead of comparing ->first with ->last.
        (dwarf2out_var_location): Pass last_label resp. last_postcall_label
        to add_var_loc_to_decl.

        * dwarf2out.c (output_call_frame_info): For dw_cie_version
        >= 4 add also address size and segment size fields into CIE header.

        * unwind-dw2.c (extract_cie_info): Handle CIE version 4, as
        long as address size is the same as sizeof (void *) and
        segment size is 0.
        * unwind-dw2-fde.c (get_cie_encoding): Likewise.  If
        address size or segment size is unexpected, return DW_EH_PE_omit.
        (classify_object_over_fdes): If get_cie_encoding returned
        DW_EH_PE_omit, return -1.
        (init_object): If classify_object_over_fdes returned -1,
        pretend there were no FDEs at all.

2010-04-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (bswap<mode>2): Macroize expander from
        bswap{si,di}2 using SWI48 mode iterator.
        (*bswap<mode>2_movbe): Macroize insn from *bswap{si,di}_movbe using
        SWI48 mode iterator.  Set type attribute of bswap insn to bitmanip,
        set modrm attribute of bswap insn to 0 and remove length attribute.
        (*bswap<mode>2_1): Macroize insn from *bswap{si,di}_1 using SWI48 mode
        iterator.  Set type attribute to bitmanip, set modrm attribute to 0,
        set mode attribute to <MODE> and remove length attribute.

2010-04-20  James E. Wilson  <wilson@codesourcery.com>

        PR rtl-optimization/43520
        * ira-lives.c (ira_implicitly_set_insn_hard_regs): Exclude classes with
        zero available registers.

2010-04-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_cproj): Fold more cases.

2010-04-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (build_complex_cproj, fold_builtin_cproj): New.
        (fold_builtin_1): Fold builtin cproj.
        * builtins.def (BUILT_IN_CPROJ, BUILT_IN_CPROJF, BUILT_IN_CPROJL):
        Use ATTR_CONST_NOTHROW_LIST.

2010-04-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (ffs<mode>2): Macroize expander from ffs_cmove
        and ffsdi2 using SWI48 mode iterator.  Expand SImode insn through
        ffsi2_no_cmove for !TARGET_CMOVE.
        (ffssi2_no_cmove): Rename from *ffs_no_cmove.  Make public.
        (ffssi2): Remove expander.
        (*ffs<mode>_1): Macroize insn from *ffs{si,di} using SWI48
        mode iterator.
        (ctz<mode>2): Ditto from ctz{si,di}2.
        (clz<mode>2): Macroize expander from ctz{hi,si,di}2 using SWI248
        mode iterator.
        (clz<mode>2_abm): Macroize insn from clz{hi,si,di}2_abm using SWI248
        mode iterator.

2010-04-20  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (AT_linkage_name): Define.
        (clone_as_declaration): Handle DW_AT_linkage_name.
        (add_name_and_src_coords_attributes): Use AT_linkage_name instead
        of DW_AT_MIPS_linkage_name.
        (move_linkage_attr): Likewise.
        (dwarf2out_finish): Likewise.

2010-04-20  Xinliang David Li  <davidxl@gcc.gnu.org>

        PR middle-end/41952
        * fold-const.c (fold_comparison): New folding rule.

2010-04-20  Anatoly Sokolov  <aesok@post.ru>

        * double-int.h (double_int_setbit): Declare.
        * double-int.c (double_int_setbit): New function.
        * rtl.h (immed_double_int_const): Declare.
        * emit-rtl.c (immed_double_int_const): New function.
        * builtins.c (expand_builtin_signbit): Clean up, use double_int_*
        and immed_double_int_const functions.
        * optabs.c (expand_absneg_bit, expand_copysign_absneg,
        expand_copysign_bit):  (Ditto.).
        * simplify-rtx.c (simplify_binary_operation_1): (Ditto.).
        * tree-ssa-address.c (addr_for_mem_ref): (Ditto.).
        * dojump.c (prefer_and_bit_test): (Ditto.).
        * expr.c (convert_modes, reduce_to_bit_field_precision,
        const_vector_from_tree): (Ditto.).
        * expmed.c (mask_rtx, lshift_value): (Ditto.).

2010-04-20  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_remove_node): Kill bodies in other partitoin.
        (dump_cgraph_node): Dump new flags.
        * cgraph.h (struct cgraph_node): Add flags
        reachable_from_other_partition and in_other_partition.
        (cgraph_can_remove_if_no_direct_calls_p): Functions used by
        other partition can not be removed.
        * cgraphunit.c (cgraph_mark_functions_to_output): Functions used by
        the other partition must be output; silence sanity checking on
        leaking functions bodies from other paritition.
        * lto-cgraph.c (reachable_from_other_partition_p): New function.
        (lto_output_node): Output new flags; do not sanity check that inline
        clones are output; drop lto_forced_extern_inline_p code; do not mock
        visibility flags at partition boundaries.
        (add_node_to): New function.
        (output_cgraph): Use it to sort functions so masters appear before
        clones.
        (input_overwrite_node): Input new flags.
        * passes.c (ipa_write_summaries): Do not call
        lto_new_extern_inline_states.
        * lto-section-out.c (forced_extern_inline,
        lto_new_extern_inline_states lto_delete_extern_inline_states,
        lto_force_functions_extern_inline, lto_forced_extern_inline_p): Kill.
        * lto-streamer.h (lto_new_extern_inline_states,
        * lto_delete_extern_inline_states, lto_force_functions_extern_inline,
        lto_forced_extern_inline_p): Kill.

2010-04-20  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (do_sd_constraint): Add edges only
        from vars that can have pointers.
        (process_constraint): Dump useless constraints.

2010-04-20  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (do_structure_copy): Properly handle DEREF.
        (dump_sa_points_to_info): Remove asserts.
        (init_base_vars): nothing_id isn't an escape point nor does it
        have pointers.

2010-04-20  Jakub Jelinek  <jakub@redhat.com>

        * tree.h (TYPE_REF_IS_RVALUE): Define.
        * dwarf2out.c (attr_checksum_ordered, is_type_die, is_comdat_die,
        should_move_die_to_comdat, prune_unused_types_walk): Handle
        DW_TAG_rvalue_reference_type like DW_TAG_reference_type.
        (modified_type_die, gen_reference_type_die): Emit
        DW_TAG_rvalue_reference_type instead of DW_TAG_reference_type
        if TYPE_REF_IS_RVALUE and -gdwarf-4.

2010-04-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        PR target/43635
        * config/s390/s390.c (s390_emit_call): Turn direct into indirect
        calls for -fpic -m31 if they have been sibcall optimized.

2010-04-19  James E. Wilson  <wilson@codesourcery.com>

        * config/ia64/ia64.h (FIXED_REGISTERS, CALL_USED_REGISTERS): Make
        ar.lc fixed and call-used.

        * config/ia64/ia64.c (TARGET_INVALID_WITHIN_DOLOOP): Define.

2010-04-19  Jan Hubicka  <jh@suse.cz>

        * opts.c (decode_options): Disable whpr incompatible passes.
        * lto/lto.c (lto_1_to_1_map): Skip clones.
        (read_cgraph_and_symbols): Do not mark everything as needed.
        (do_whole_program_analysis): Do map only after optimizing;
        set proper cgraph_state; use passmanager.

2010-04-19  DJ Delorie  <dj@redhat.com>

        * cfgexpand.c (expand_debug_expr): Check for mismatched modes in
        POINTER_PLUS_EXPR and fix them.

2010-04-19  Eric B. Weddington  <eric.weddington@atmel.com>

        * config/avr/avr-devices.c (avr_mcu_types): Add support for new
        devices atmega644pa, attiny2313a, attiny24a, attiny261a, attiny4313,
        attiny44a, attiny861a, atmega16a, atmega168a, atmega164a, atmega165a,
        atmega169a, atmega169pa, atmega16hva2, atmega324a, atmega324pa,
        atmega325a, atmega3250a, atmega328, atmega329a, atmega329pa,
        atmega3290a, atmega48a, atmega644a, atmega645a, atmega645p,
        atmega6450a, atmega6450p, atmega649a, atmega649p, atmega6490a,
        atmega6490p, atmega64hve, atmega88a, atmega88pa, attiny461a, attiny84a,
        m3000. Remove support for devices atmega8m1, atmega8c1, atmega16c1,
        atmega4hvd, atmega8hvd, attiny327, m3000f, m3000s, m3001b.
        * config/avr/t-avr.c (MULTILIB_MATCHES): Same.

2010-04-19  Eric Botcazou  <ebotcazou@adacore.com>

        * ifcvt.c (noce_try_cmove_arith): Fix long lines.
        (check_cond_move_block): Likewise.
        (cond_move_process_if_block): Likewise.
        (noce_find_if_block): Improve formatting.
        (find_if_header): Pass 0 to memset and tweak conditions.
        (cond_exec_find_if_block): Fix long lines and tweak conditions.

2010-04-19  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (lower_bound_default): For DW_LANG_Python return 0
        for -gdwarf-4.

        PR middle-end/43337
        * tree-nested.c (convert_nonlocal_omp_clauses): OMP_CLAUSE_PRIVATE
        with non-local decl doesn't need chain.

2010-04-19  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-color.c (allocno_reload_assign): Avoid accumulating
        reload registers in ALLOCNO_TOTAL_CONFLICT_HARD_REGS.

2010-04-19  Martin Jambor  <mjambor@suse.cz>

        * gimple.h (create_tmp_reg): Declare.
        * gimplify.c (create_tmp_reg): New function.
        (gimplify_return_expr): Use create_tmp_reg.
        (gimplify_omp_atomic): Likewise.
        (gimple_regimplify_operands): Likewise.
        * tree-dfa.c (make_rename_temp): Likewise.
        * tree-predcom.c (predcom_tmp_var): Likewise.
        (reassociate_to_the_same_stmt): Likewise.
        * tree-sra.c (replace_uses_with_default_def_ssa_name): Likewise.
        (get_replaced_param_substitute): Likewise.
        * tree-ssa-phiprop.c (phiprop_insert_phi): Likewise.
        * tree-ssa-phiopt.c (cond_store_replacement): Likewise.
        * tree-ssa-pre.c (get_representative_for): Likewise.
        (create_expression_by_pieces): Likewise.
        * tree-tailcall.c (adjust_return_value_with_ops): Likewise.
        (create_tailcall_accumulator): Likewise.

2010-04-19  Martin Jambor  <mjambor@suse.cz>

        * cgraphunit.c (cgraph_redirect_edge_call_stmt_to_callee): Update
        new_stmt.
        (cgraph_materialize_all_clones): Assert !need_ssa_update_p.

2010-04-19  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43796
        * tree-vrp.c (adjust_range_with_scev): Lookup init and step
        from SCEV in the lattice.
        (vrp_visit_phi_node): Dump change.

2010-04-19  Richard Guenther  <rguenther@suse.de>

        * configure.ac: Fix quoting around elf_getshstrndx ABI check.
        * configure: Re-generated.

2010-04-19  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43783
        * tree-ssa-pre.c (create_component_ref_by_pieces_1): Drop
        constant ARRAY_REF operands two and three if possible.

2010-04-19  Uros Bizjak  <ubizjak@gmail.com>

        PR target/43766
        * config/i386/i386.c (ix86_decompose_address): Handle ASHIFT addends.

2010-04-19  Jie Zhang  <jie@codesourcery.com>

        PR target/43662
        * reginfo.c (reinit_regs):