gcc/
	* cgraph.c (cgraph_add_to_same_comdat_group): New.
	* cgraph.h: Declare it.
	* ipa.c (function_and_variable_visibility): Make sure thunks
	have the right visibility.
gcc/cp/
	* method.c (use_thunk): Use cgraph_add_to_same_comdat_group.
	* optimize.c (maybe_clone_body): Likewise.
	* semantics.c (maybe_add_lambda_conv_op): Likewise.

From-SVN: r176071

ipa.c (cgraph_address_taken_from_non_vtable_p): Walk references of node instead of references in node.

	* ipa.c (cgraph_address_taken_from_non_vtable_p): Walk references of node
	instead of references in node.

From-SVN: r175555

	* lto-symtab.c (lto_varpool_replace_node): Remove code handling
	extra name aliases.
	(lto_symtab_resolve_can_prevail_p): Likewise.
	(lto_symtab_merge_cgraph_nodes): Update alias_of pointers.
	* cgraphbuild.c (record_reference): Remove extra body alias code.
	(mark_load): Likewise.
	(mark_store): Likewise.
	* cgraph.h (varpool_node): Remove extra_name filed;
	add alias_of and extraname_alias.
	(varpool_create_variable_alias, varpool_for_node_and_aliases): Declare.
	(varpool_alias_aliased_node): New inline function.
	(varpool_variable_node): New function.
	* cgraphunit.c (handle_alias_pairs): Handle also variable aliases.
	* ipa-ref.c (ipa_record_reference): Allow aliases on variables.
	* lto-cgraph.c (lto_output_varpool_node): Update streaming.
	(input_varpool_node): Likewise.
	* lto-streamer-out.c (produce_symtab): Remove extra name aliases.
	(varpool_externally_visible_p): Remove extra body alias code.
	(function_and_variable_visibility): Likewise.
	* tree-ssa-structalias.c (associate_varinfo_to_alias_1): New function.
	(ipa_pta_execute): Use it.
	* varpool.c (varpool_remove_node): Remove extra name alias code.
	(varpool_mark_needed_node): Likewise.
	(varpool_analyze_pending_decls): Analyze aliases.
	(assemble_aliases): New functoin.
	(varpool_assemble_decl): Use it.
	(varpool_create_variable_alias): New function.
	(varpool_extra_name_alias): Rewrite.
	(varpool_for_node_and_aliases): New function.

From-SVN: r175169

	* cgraphunit.c (handle_alias_pairs): New function.
	(cgraph_finalize_compilation_unit): Use it.
	* ipa.c (cgraph_externally_visible_p): Remove hack marking asm names
	as externally visible.

From-SVN: r175079

From-SVN: r175021

	* cgraph.c (cgraph_make_decl_local): Handle DECL_ONE_ONLY
	similarly to DECL_COMDAT.
	* cgraphunit.c (cgraph_analyze_function): Likewise.
	* ipa.c (function_and_variable_visibility): Likewise.

From-SVN: r175015

	PR middle-end/49373
	* ipa.c (cgraph_externally_visible_p): Check resolution info.

From-SVN: r174972

	PR middle-end/49378
	* ipa.c (cgraph_non_local_node_p_1, cgraph_local_node_p): Rule out
	aliases and thunks.

From-SVN: r174969

From-SVN: r174954

	* lto-symtab.c (lto_cgraph_replace_node): Kill same body alias code.
	(lto_symtab_resolve_can_prevail_p): Likewise.
	(lto_symtab_merge_cgraph_nodes): Update merging of aliases.
	* cgraph.c (same_body_aliases_done): New global var.
	(cgraph_same_body_alias_1): Rename to ...
	(cgraph_create_function_alias): ... this one; reorg to new
	representation.
	(cgraph_same_body_alias): Use cgraph_create_function_alias;
	record references when asked to.
	(cgraph_add_thunk): Fix formating.
	(cgraph_get_node): Kill same body alias code.
	(cgraph_node_for_asm): Likewise.
	(cgraph_remove_same_body_alias): Remove.
	(cgraph_remove_node): Kill same body alias code.
	(cgraph_mark_address_taken_node): Mark also the aliased function
	as having address taken.
	(dump_cgraph_node): Dump same body aliases.
	(cgraph_for_node_thunks_and_aliases): Update for new alias
	representation.
	(cgraph_for_node_and_aliases): Likewise.
	* cgraph.h (same_body): Kll pointer.
	(same_body_alias): Update comment.
	(same_body_aliases_done): Declare.
	(cgraph_remove_same_body_alias): Remove declaration.
	(cgraph_create_function_alias): Declare.
	(cgraph_process_same_body_aliases): Declare.
	(cgraph_function_with_gimple_body_p): Check for alias.
	(cgraph_can_remove_if_no_direct_calls_p): Look for aliases.
	(cgraph_alias_aliased_node): New function.
	(cgraph_function_node): Update for new aliases.
	(cgraph_function_or_thunk_node): Likewise.
	* ipa-inline-transform.c (can_remove_node_now_p): Look for aliases.
	(inline_call): Remove dead aliases.
	* cgraphunit.c (cgraph_decide_is_function_needed): Disable assembler name
	hack for same body aliases.
	(clone_of_p): Look through aliases.
	(verify_cgraph_node): Verify aliases.
	(cgraph_analyze_function): Analyze aliases; fixup C++ bugs.
	(cgraph_process_same_body_aliases): New function.
	(process_function_and_variable_attributes): Disable weakref warning on
	alias.
	(cgraph_analyze_functions): Handle aliases.
	(cgraph_mark_functions_to_output): Handle aliases same way as thunks.
	(assemble_thunks): Rename to ...
	(assemble_thunks_and_aliases): ... this one; handle aliases, too.
	(cgraph_expand_function): Remove alias output code.
	(cgraph_output_in_order): Skip aliases.
	(cgraph_preserve_function_body_p): Aliases don't need preserving.
	* ipa-ref.c (ipa_ref_use_name): Add alias reference.
	(ipa_record_reference): Do not assert on alias references.
	(ipa_ref_has_aliases_p): New function.
	* ipa-ref.h (enum ipa_ref_use): Add IPA_REF_ALIAS.
	(ipa_ref_has_aliases_p): Declare.
	* lto-cgraph.c (lto_output_node): Handle aliases.
	(input_node): Likewise.
	* lto-streamer-out.c (lto_output): Skip aliases.
	(produce_symtab): Kill same_body_alias code.
	* ipa-utils.c (ipa_reverse_postorder): Add FIXME.
	(ipa_reverse_postorder): Use cgraph_only_called_directly_or_aliased_p.
	* ipa-inline.c (update_caller_keys): Walk aliases.
	(inline_small_functions): Fix thinko in previous patch.
	* ipa.c (cgraph_externally_visible_p): Do not walk aliases.
	(function_and_variable_visibility): Do not walk same body aliases.
	* tree-ssa-structalias.c (associate_varinfo_to_alias): New function.
	(ipa_pta_execute): Use it.

	* lto.c (add_cgraph_node_to_partition_1): Break out from ...
	(add_cgraph_node_to_partition) ... here; walk aliases.
	(lto_1_to_1_map): Remove same body alias code.
	(promote_fn): Likewise.
	(lto_promote_cross_file_statics): Update comment.

	* decl2.c (cp_write_global_declarations): Process aliases; look trhough
	same body aliases.

From-SVN: r174952

	* ipa.c (cgraph_non_local_node_p_1): Break out from ...;
	(cgraph_local_node_p): ... here; handle aliases.
	(has_addr_references_p): Break out from ...;
	(cgraph_remove_unreachable_nodes) ... here.

From-SVN: r174925

From-SVN: r174537

re PR middle-end/49062 (Many C++ tests ICE on Tru64 UNIX: non-DECL_ONE_ONLY node in a same_comdat_group list)

2011-05-25  Jan Hubicka  <jh@suse.cz>

	PR middle-end/49062
	* ipa.c (function_and_variable_visibility): Only add to same
	comdat group list if DECL_ONE_ONLY.

From-SVN: r174180

	* cgraph.c (cgraph_add_thunk): Create real function node instead
	of alias node; finalize it and mark needed/reachale; arrange visibility
	to be right and add it into the corresponding same comdat group list.
	(dump_cgraph_node): Dump thunks.
	* cgraph.h (cgraph_first_defined_function, cgraph_next_defined_function,
	cgraph_function_with_gimple_body_p, cgraph_first_function_with_gimple_body,
	cgraph_next_function_with_gimple_body): New functions.
	(FOR_EACH_FUNCTION_WITH_GIMPLE_BODY, FOR_EACH_DEFINED_FUNCTION):
	New macros.
	* ipa-cp.c (ipcp_need_redirect_p): Thunks can't be redirected.
	(ipcp_generate_summary): Use FOR_EACH_FUNCTION_WITH_GIMPLE_BODY.
	* cgraphunit.c (cgraph_finalize_function): Only look into possible
	devirtualization when optimizing.
	(verify_cgraph_node): Verify thunks.
	(cgraph_analyze_function): Analyze thunks.
	(cgraph_mark_functions_to_output): Output thunks only in combination
	with function they are assigned to.
	(assemble_thunk): Turn thunk into non-thunk; don't try to turn
	alias into normal node.
	(assemble_thunks): New functoin.
	(cgraph_expand_function): Use it.
	* lto-cgraph.c (lto_output_node): Stream thunks.
	(input_overwrite_node): Stream in thunks.
	* ipa-pure-const.c (analyze_function): Thunks do nothing interesting.
	* lto-streamer-out.c (lto_output): Do not try to output thunk's body.
	* ipa-inline.c (inline_small_functions): Use FOR_EACH_DEFINED_FUNCTION.
	* ipa-inline-analysis.c (compute_inline_parameters): "Analyze" thunks.
	(inline_analyze_function): Do not care about thunk jump functions.
	(inline_generate_summary):Use FOR_EACH_DEFINED_FUNCTION.
	* ipa-prop.c (ipa_prop_write_jump_functions): Use cgraph_function_with_gimple_body_p.
	* passes.c (do_per_function_toporder): Use cgraph_function_with_gimple_body_p.
	(execute_one_pass);Use FOR_EACH_FUNCTION_WITH_GIMPLE_BODY.
	(ipa_write_summaries): Use cgraph_function_with_gimple_body_p.
	(function_called_by_processed_nodes_p): Likewise.
	* lto.c (lto_materialize_function): Use cgraph_function_with_gimple_body_p.
	(add_cgraph_node_to_partition): Do not re-add items to partition; handle thunks.
	(add_varpool_node_to_partition): Do not re-add items to partition.

From-SVN: r173517

	* cgraph.h (cgraph_node_set_def, varpool_node_set_def): Move out of GTY;
	replace hash by pointer map.
	(cgraph_node_set_element_def, cgraph_node_set_element,
	const_cgraph_node_set_element, varpool_node_set_element_def,
	varpool_node_set_element, const_varpool_node_set_element): Remove.
	(free_cgraph_node_set, free_varpool_node_set): New function.
	(cgraph_node_set_size, varpool_node_set_size): Use vector size.
	* tree-emutls.c: Free varpool node set.
	* ipa-utils.c (cgraph_node_set_new, cgraph_node_set_add,
	cgraph_node_set_remove, cgraph_node_set_find, dump_cgraph_node_set,
	debug_cgraph_node_set, free_cgraph_node_set, varpool_node_set_new,
	varpool_node_set_add, varpool_node_set_remove, varpool_node_set_find,
	dump_varpool_node_set, free_varpool_node_set, debug_varpool_node_set):
	Move here from ipa.c; implement using pointer_map
	* ipa.c (cgraph_node_set_new, cgraph_node_set_add,
	cgraph_node_set_remove, cgraph_node_set_find, dump_cgraph_node_set,
	debug_cgraph_node_set, varpool_node_set_new,
	varpool_node_set_add, varpool_node_set_remove, varpool_node_set_find,
	dump_varpool_node_set, debug_varpool_node_set):
	Move to ipa-uitls.c.
	* lto/lto.c (ltrans_partition_def): Remove GTY annotations.
	(ltrans_partitions): Move to heap.
	(new_partition): Update.
	(free_ltrans_partitions): New function.
	(lto_wpa_write_files): Use it.
	* passes.c (ipa_write_summaries): Update.

From-SVN: r173334

2011-04-29  Martin Jambor  <mjambor@suse.cz>

	* cgraph.h (cgraph_postorder): Remove declaration.
	* ipa-utils.h (ipa_free_postorder_info): Declare.
	(ipa_reverse_postorder): Likewise.
	* cgraphunit.c: Include ipa-utils.h.
	(cgraph_expand_all_functions): Update call to ipa_reverse_postorder.
	* ipa-inline.c: Include ipa-utils.h.
	(ipa_inline): Update call to ipa_reverse_postorder.
	* ipa-pure-const.c (propagate_pure_const): Update call to
	ipa_reduced_postorder and ipa_print_order.  Call
	ipa_free_postorder_info to clean up.
	(propagate_nothrow): Likewise.
	* ipa-reference.c (propagate): Removed a useless call to
	ipa_utils_reduced_inorder, updated a call to ipa_reduced_postorder
	and ipa_print_order.  Call ipa_free_postorder_info to clean up.
	* ipa.c: Include ipa-utils.h.
	(ipa_profile): Update call to ipa_reverse_postorder.
	(cgraph_postorder): Moved to...
	* ipa-utils.c (ipa_reverse_postorder): ...here and renamed.
	(ipa_utils_print_order): Renamed to ipa_print_order.
	(ipa_utils_reduced_inorder): Renamed to ipa_reduced_postorder. Updated
	comments.
	(ipa_free_postorder_info): New function.
	* passes.c: Include ipa-utils.h.
	(do_per_function_toporder): Update call to ipa_reverse_postorder.
	(ipa_write_summaries): Likewise.

	* Makefile.in (passes.o): Add IPA_UTILS_H to dependencies.
	(cgraphunit.o): Likewise.
	(ipa.o): Likewise.
	(ipa-inline.o): Likewise.

lto/
	* lto.c: Include ipa-utils.h.
	(lto_balanced_map): Update call to ipa_reverse_postorder.
	* Make-lang.in (lto/lto.o): Add IPA_UTILS_H to dependencies.

From-SVN: r173197

	* cgraphbuild.c: Include ipa-inline.h.
	(reset_inline_failed): Use initialize_inline_failed.
	* cgraph.c: Include ipa-inline.h.
	(cgraph_create_node_1): Do not initialize estimated_growth.
	(initialize_inline_failed): More to ipa-inline-analysis.c
	(dump_cgraph_node): Do not dump inline flags.
	* cgraph.h (cgraph_local_info): Remove inlineable, versionable
	and disregard_inline_limits flags.
	(cgrpah_global_info): Remove estimated_stack_size, stack_frame_offset,
	time, size, estimated_growth.
	* ipa-cp.c (ipcp_versionable_function_p, ipcp_generate_summary): Update.
	* cgraphunit.c (cgraph_decide_is_function_needed): Use
	DECL_DISREGARD_INLINE_LIMITS.
	(cgraph_analyze_function): Do not initialize
	node->local.disregard_inline_limits.
	* lto-cgraph.c (lto_output_node, input_overwrite_node): Do not stream
	inlinable, versionable and disregard_inline_limits.
	* ipa-inline.c (cgraph_clone_inlined_nodes, cgraph_mark_inline_edge,
	cgraph_check_inline_limits, cgraph_default_inline_p, cgraph_edge_badness,
	update_caller_keys, update_callee_keys, add_new_edges_to_heap): Update.
	(cgraph_decide_inlining_of_small_function): Update; set CIF_FUNCTION_NOT_INLINABLE
	for uninlinable functions.
	(cgraph_decide_inlining, cgraph_edge_early_inlinable_p,
	cgraph_decide_inlining_incrementally): Update.
	* ipa-inline.h (inline_summary): Add inlinable, versionable, disregard_inline_limits,
	estimated_stack_size, stack_frame_offset, time, size and estimated_growth
	parameters.
	(estimate_edge_growth): Update.
	(initialize_inline_failed): Declare.
	* ipa-split.c: Include ipa-inline.h
	(execute_split_functions): Update.
	* ipa.c (cgraph_postorder): Use DECL_DISREGARD_INLINE_LIMITS.
	(cgraph_remove_unreachable_nodes): Do not clear inlinable flag.
	(record_cdtor_fn): Use DECL_DISREGARD_INLINE_LIMITS.
	* ipa-inline-analysis.c (inline_node_removal_hook): Update; set
	estimated_growth to INT_MIN.
	(inline_node_duplication_hook): Likewise.
	(dump_inline_summary): Dump new fields.
	(compute_inline_parameters): Update.
	(estimate_edge_time, estimate_time_after_inlining,
	estimate_size_after_inlining, estimate_growth, inline_read_summary,
	inline_write_summary):
	(initialize_inline_failed): Move here from cgraph.c.
	* tree-sra.c: Include ipa-inline.h.
	(ipa_sra_preliminary_function_checks): Update.
	* lto/lto.c (lto_balanced_map): Update.
	Update.
	* Makefile.in: (cgraph.o, cgraphbuild.o): Add dependency on
	ipa-inline.h

From-SVN: r172581

	* cgraph.c (dump_cgraph_node): Do not dump inline summaries.
	* cgraph.h (struct inline_summary): Move to ipa-inline.h
	(cgraph_local_info): Remove inline_summary.
	* ipa-cp.c: Include ipa-inline.h.
	(ipcp_cloning_candidate_p, ipcp_estimate_growth,
	ipcp_estimate_cloning_cost, ipcp_insert_stage): Use inline_summary
	accesor.
	* lto-cgraph.c (lto_output_node): Do not stream inline summary.
	(input_overwrite_node): Do not set inline summary.
	(input_node): Do not stream inline summary.
	* ipa-inline.c (cgraph_decide_inlining): Dump inline summaries.
	(cgraph_decide_inlining_incrementally): Do not try to estimate overall
	growth; we do not have inline parameters computed for that anyway.
	(cgraph_early_inlining): After inlining compute call_stmt_sizes.
	* ipa-inline.h (struct inline_summary): Move here from ipa-inline.h
	(inline_summary_t): New type and VECtor.
	(debug_inline_summary, dump_inline_summaries): Declare.
	(inline_summary): Use VOCtor.
	(estimate_edge_growth): Kill hack computing call stmt size directly.
	* lto-section-in.c (lto_section_name): Add inline section.
	* ipa-inline-analysis.c: Include lto-streamer.h
	(node_removal_hook_holder, node_duplication_hook_holder): New holders
	(inline_node_removal_hook, inline_node_duplication_hook): New functions.
	(inline_summary_vec): Define.
	(inline_summary_alloc, dump_inline_summary, debug_inline_summary,
	dump_inline_summaries): New functions.
	(estimate_function_body_sizes): Properly compute size/time of outgoing calls.
	(compute_inline_parameters): Alloc inline_summary; do not compute size/time
	of incomming calls.
	(estimate_edge_time): Avoid missing time summary hack.
	(inline_read_summary): Read inline summary info.
	(inline_write_summary): Write inline summary info.
	(inline_free_summary): Free all hooks and inline summary vector.
	* lto-streamer.h: Add LTO_section_inline_summary section.
	* Makefile.in (ipa-cp.o, ipa-inline-analysis.o): Update dependencies.
	* ipa.c (cgraph_remove_unreachable_nodes): Fix dump file formating.

	* lto.c: Include ipa-inline.h
	(add_cgraph_node_to_partition, undo_partition): Use inline_summary accessor.
	(ipa_node_duplication_hook): Fix declaration.
	* Make-lang.in (lto.o): Update dependencies.

From-SVN: r172430

2011-04-11  Martin Jambor  <mjambor@suse.cz>

	* except.c (set_nothrow_function_flags): Call cgraph_get_node instead
	of cgraph_node.
	* final.c (rest_of_clean_state): Likewise.
	* gimple-iterator.c (update_call_edge_frequencies): Likewise.
	* passes.c (pass_init_dump_file): Likewise.
	(execute_all_ipa_transforms): Likewise.
	(function_called_by_processed_nodes_p): Likewise.
	* predict.c (maybe_hot_frequency_p): Likewise.
	(probably_never_executed_bb_p): Likewise.
	(compute_function_frequency): Likewise.
	* tree-nested.c (check_for_nested_with_variably_modified): Likewise.
	(unnest_nesting_tree_1): Likewise.
	(lower_nested_functions): Likewise.
	* tree-optimize.c (execute_fixup_cfg): Likewise.
	(tree_rest_of_compilation): Likewise.
	* tree-profile.c (gimple_gen_ic_func_profiler): Likewise.
	* tree-sra.c (ipa_early_sra): Likewise.
	* tree-ssa-loop-ivopts.c (computation_cost): Likewise.
	* config/i386/i386.c (ix86_compute_frame_layout): Likewise.
	* ipa.c (record_cdtor_fn): Likewise.
	* ipa-inline.c (cgraph_early_inlining): Likewise.
	(compute_inline_parameters_for_current): Likewise.
	* ipa-prop.c (ipa_make_edge_direct_to_target): Likewise.
	* ipa-pure-const.c (local_pure_const): Likewise.
	* ipa-split.c (split_function): Likewise.
	(execute_split_functions): Likewise.
	* cgraphbuild.c (build_cgraph_edges): Likewise.
	(rebuild_cgraph_edges): Likewise.
	(cgraph_rebuild_references): Likewise.	
	(remove_cgraph_callee_edges): Likewise.
	* cgraphunit.c (cgraph_mark_if_needed): Likewise.
	(verify_cgraph_node): Likewise.
	(cgraph_analyze_functions): Likewise.
	(cgraph_preserve_function_body_p): Likewise.
	(save_inline_function_body): Likewise.
	(save_inline_function_body): Likewise.
	* tree-inline.c (copy_bb): Likewise.
	(optimize_inline_calls): Likewise.

From-SVN: r172257

	PR middle-end/48044
	* ipa.c (cgraph_remove_unreachable_nodes): Enqueue
	all vnode->force_output nodes as needed.

	* gcc.dg/torture/pr48044.c: New test.

From-SVN: r170873

re PR tree-optimization/47276 (ICE in function_and_variable_visibility, at ipa.c:857 during compiling glibc.)

	PR tree-optimization/47276 
	* ipa.c (function_and_variable_visibility): Do not try to mark alias
	declarations as needed.
	* gcc.dg/pr47276.c: New testcase.

From-SVN: r168844

	PR tree-optmization/46469
	* ipa.c (function_and_variable_visibility): Clear needed flags on
	nodes with external decls; handle weakrefs merging correctly.

	* g++.dg/torture/pr46469.C: New testcase.

From-SVN: r168598

2010-12-23  Martin Jambor  <mjambor@suse.cz>

	* ipa.c (cgraph_remove_unreachable_nodes): Update former_clone_of even
	when not checking.

From-SVN: r168209

This time really commit
	PR middle-end/45388
	* decl2.c (start_objects): Do not generate collect2 recognicable name
	for static ctor.
	* ipa.c (cgraph_build_static_cdtor_1): Break out from ... ; add FINAL parameter.
	(cgraph_build_static_cdtor): ... here.
	(build_cdtor): Use cgraph_build_static_cdtor_1.

From-SVN: r167781

ipa.c (cgraph_externally_visible_p): Do not localize builtins and functions with user asm defined names.


	* ipa.c (cgraph_externally_visible_p): Do not localize builtins
	and functions with user asm defined names.
	(varpool_externally_visible_p): Do not localize vars with user
	asm defined names.

From-SVN: r167465

cgraphunit.c (process_function_and_variable_attributes): Mark dllexport-ed function/variables as needed.

2010-11-25  Kai Tietz  <kai.tietz@onevision.com>

	* cgraphunit.c (process_function_and_variable_attributes):
	Mark dllexport-ed function/variables as needed.
	* ipa.c (cgraph_externally_visible_p): Make dllexport-ed
	as externally visible.

2010-11-25  Kai Tietz  <kai.tietz@onevision.com>

	* gcc.dg/dll-8.c: New.

From-SVN: r167144

	* cgraph.c (ld_plugin_symbol_resolution_names): New.
	(dump_cgraph_node): Dump resolution.
	* cgraph.h (ld_plugin_symbol_resolution_names): Declare.
	(cgraph_comdat_can_be_unshared_p): Dclare.
	* lto-streamer-out.c (produce_symtab): Use
	cgraph_comdat_can_be_unshared_p.
	* ipa.c (cgraph_address_taken_from_non_vtable_p): New function.
	(cgraph_comdat_can_be_unshared_p): New function based on logic
	in cgraph_externally_visible_p.
	(cgraph_externally_visible_p): Use it.
	(varpool_externally_visible_p): Virtual tables can be unshared.
	* varpool.c (dump_varpool_node): Dump resolution.

From-SVN: r166985

	* cgraph.h (+varpool_can_remove_if_no_refs): Move here from ...;
	when !flag_toplevel_reorder do not remove unless variable is
	COMDAT or ARTIFICIAL.
	* ipa.c (varpool_can_remove_if_no_refs): ... here.
	(cgraph_remove_unreachable_nodes): Only analyzed nodes needs to stay.
	* cgraphunit.c (cgraph_analyze_functions): Dump varpool, too.
	* varpool.c (decide_is_variable_needed): Do not handle visibility issues.
	(varpool_finalize_decl): Likewise.
	(varpool_remove_unreferenced_decls): Use varpool_mark_needed_node; update
	outdated comment on DECL_RTL_SET_P check.

From-SVN: r166812

	* doc/invoke.texi (-fwhopr): Merge into -flto section.
	(-flto-partition): Document none.
	* gcc.c (LINK_COMMAND_SPEC): Remove -fwhopr.
	* lto-wrapper.c: Update comment.
	(run_gcc): Update LTO option parsing.
	* opts.c (finish_options): add support -flto-partition=none
	(common_handle_option): Remove fwhopr.
	* common.opt: Turn fwhopr into flto.
	* collect2.c (main): Update option handling.
	* cgraphunit.c (cgraph_decide_is_function_needed): Remove flag_whopr.
	* ipa-split.c (execute_split_functions): Remove flag_whopr.
	* ipa.c (function_and_variable_visibility): Remove flag_whopr.
	* ipa-prop.c (ipa_compute_jump_functions): Remove flag_whopr.
	* varpool.c (decide_is_variable_needed): Remove flag_whopr.
	
	* gcc.dg/20081223-1.c: Update LTO options.
	* gcc.dg/lto/20090206-1_0.c: Update LTO options.
	* gcc.dg/lto/20081118_0.c: Update LTO options.
	* gcc.dg/lto/ipareference_0.c: Update LTO options.
	* gcc.dg/lto/20100423-2_0.c: Update LTO options.
	* gcc.dg/lto/20081201-1_0.c: Update LTO options.
	* gcc.dg/lto/ipacp_0.c: Update LTO options.
	* gcc.dg/lto/20090116_0.c: Update LTO options.
	* gcc.dg/lto/20091015-1_0.c: Update LTO options.
	* gcc.dg/lto/20090126-2_0.c: Update LTO options.
	* gcc.dg/lto/20081202-2_0.c: Update LTO options.
	* gcc.dg/lto/20081204-1_0.c: Update LTO options.
	* gcc.dg/lto/const-uniq_0.c: Update LTO options.
	* gcc.dg/lto/20081224_0.c: Update LTO options.
	* gcc.dg/lto/20090219_0.c: Update LTO options.
	* gcc.dg/lto/ipareference2_0.c: Update LTO options.
	* gcc.dg/lto/20090206-2_0.c: Update LTO options.
	* gcc.dg/lto/20081115_0.c: Update LTO options.
	* gcc.dg/lto/20081201-2_0.c: Update LTO options.
	* gcc.dg/lto/20081120-2_0.c: Update LTO options.
	* gcc.dg/lto/materialize-1_0.c: Update LTO options.
	* gcc.dg/lto/20090126-1_0.c: Update LTO options.
	* gcc.dg/lto/20081202-1_0.c: Update LTO options.
	* gcc.dg/lto/noreturn-1_0.c: Update LTO options.
	* g++.dg/20090107-1.C: Update LTO options.
	* g++.dg/lto/pr45679-2_0.C: Update LTO options.
	* g++.dg/lto/20081123_0.C: Update LTO options.
	* g++.dg/lto/20090313_0.C: Update LTO options.
	* g++.dg/lto/20081125_0.C: Update LTO options.
	* g++.dg/lto/20081109-1_0.C: Update LTO options.
	* g++.dg/lto/20081219_0.C: Update LTO options.
	* g++.dg/lto/20100724-1_0.C: Update LTO options.
	* g++.dg/lto/20081204-1_0.C: Update LTO options.
	* g++.dg/lto/20090303_0.C: Update LTO options.
	* g++.dg/lto/20100723-1_0.C: Update LTO options.
	* g++.dg/lto/pr45679-1_0.C: Update LTO options.
	* g++.dg/lto/20090128_0.C: Update LTO options.
	* g++.dg/lto/20081204-2_0.C: Update LTO options.
	* g++.dg/lto/20090302_0.C: Update LTO options.
	* g++.dg/lto/20081119-1_0.C: Update LTO options.
	* g++.dg/lto/20081118_0.C: Update LTO options.
	* g++.dg/20090121-1.C: Update LTO options.
	* objc.dg/lto/lto.exp: Update LTO options.
	* lib/lto.exp: Update LTO options.
	* lib/gcc-dg.exp: Update LTO options.
	* lib/c-torture.exp: Update LTO options.
	* obj-c++.dg/lto/lto.exp: Update LTO options.

From-SVN: r166625

ipa.c (process_references): Enqueue all referenced nodes; mark as reachable only non-external nodes.


	* ipa.c (process_references): Enqueue all referenced nodes;
	mark as reachable only non-external nodes.
	(cgraph_remove_unreachable_nodes): All referenced nodes should
	be enqueued; remove bogues node->needed check.

From-SVN: r165990

	* ipa.c (cgraph_externally_visible_p, varpool_externally_visible_p):
	Use info provided by linker plugin.

From-SVN: r165978

re PR lto/45736 (ICE: in cgraph_remove_unreachable_nodes, at ipa.c:245 with -flto and attribute((constructor)))


	PR middle-end/45736
	* cgraph.c (cgraph_set_readonly_flag): Rename to...
	(cgraph_set_const_flags) ... this one; get also looping argument;
	clear constructor/destructor flags.
	(cgraph_set_pure_flag): Likewise.
	(cgraph_set_looping_const_or_pure_flag): Remove.
	(cgraph_can_remove_if_no_direct_calls_and_refs): Do not try
	to optimize away static ctors/dtors; it does not work on inline clones;
	external functions can always be rmeoved.
	(cgraph_will_be_removed_from_program_if_no_direct_calls): Assert on inline
	clones; in LTO external functions always can go.
	(cgraph_used_from_object_file_p): Handle EXTERNAL functions correctly.
	(cgraph_mark_address_taken_node): Assert that we are not taking address of
	inline clone.
	(cgraph_can_remove_if_no_direct_calls_p): We always eventually remove
	external functions.
	* ipa-cp.c (ipcp_cloning_candidate_p): Do not clone functions with address taken.
	(ipcp_initialize_node_lattices): Only local functions can be handled without cloning.
	* cgraph.h (cgraph_set_readonly_flag,
	cgraph_set_looping_const_or_pure_flag): Remove.
	(cgraph_set_const_flag): Declare.
	(cgraph_set_pure_flag): Update.
	* ipa-pure-const (propagate_pure_const, local_pure_const): Update
	flags setting code.
	* ipa.c (cgraph_remove_unreachable_nodes): Fix formating; do not look at inline
	clones; fix handling of external definitions.
	(cgraph_postorder): Do not look at inline clones in the first pass.
	(function_and_variable_visibility): Drop constructors/destructor
	flags at pure and const functions.
	* tree-profile.c (tree_profiling): Update.
	* ipa-inline.c (cgraph_clone_inlined_nodes): Always clone functions with
	address taken; external functions do not account to whole program size.
	(cgraph_decide_inlining): Likewise; do not try to inline functions already
	inlined.
	* testsuite/gcc.dg/lto/pr45736_0.c: New function.

From-SVN: r165972

ipa.c (cgraph_externally_visible_p): Handle externally visible and preserve flags before trying to guess on visibility.

	* ipa.c (cgraph_externally_visible_p): Handle externally visible and
	preserve flags before trying to guess on visibility.
	(varpool_externally_visible_p): New function.
	(function_and_variable_visibility): Use it.

From-SVN: r165669

	* ipa.c (cgraph_externally_visible_p, varpool_externally_visible_p,
	function_and_variable_visibility): Revert accidental commit.

From-SVN: r165655

	PR middle-end/44206
	* g++.dg/torture/pr44206.C: New.
	* ipa.c (cgraph_remove_unreachable_nodes): Cleanup; check
	existence of refrences before removing the function.

From-SVN: r165569

gcc/
	* vec.h (VEC_qsort): Define.
	* dbxout.c (output_used_types): Use it.
	* df-scan.c (df_sort_and_compress_refs): Likewise.
	(df_sort_and_compress_mws): Likewise.
	* genautomata.c (uniq_sort_alt_states): Likewise.
	(evaluate_equiv_classes): Likewise.
	(output_trans_table): Likewise.
	(output_state): Likewise.
	* gimplify.c (compare_case_labels): Likewise.
	* graphite-sese-to-poly.c (graphite_sort_dominated_info): Likewise.
	* ipa.c (build_cdtor_fns): Likewise.
	* lto.c (lto_wpa_write_files): Likewise.
	* sel-sched.c (fill_vec_av_set): Likewise.
	* tree-predcom.c (determine_roots_comp): Likewise.
	* tree-sra.c (sort_and_spliace_var_accesses): Likewise.
	(splice_param_accesses): Likewise.
	* tree-ssa-live.c (dump_enumerated_decls): Likewise.
	* tree-ssa-reassoc.c (undistribute_ops_list): Likewise.
	(reassociate_bb): Likewise.
	* tree-ssa-sccvn.c (sort_scc): Likewise.
	* tree-ssa-structalias.c (sort_fieldstack): Likewise.

gcc/ada/
	* gcc-interface/utils2.c (gnat_build_constructor): Use VEC_qsort.

From-SVN: r165314

	PR middle-end/45955
	* ipa.c (build_cdtor): Delete endless loop.

From-SVN: r165308

	PR middle-end/45926
	* ipa.c (cgraph_remove_unreachable_nodes): Revert my previous patch.

From-SVN: r165090

	* ipa.c (cgraph_remove_unreachable_nodes): External references can always
	be removed.
	(cgraph_externally_visible_p): We can not bring local comdats that are known
	to linker; fix handling of internal visibility.
	(function_and_variable_visibility): Likewise.

From-SVN: r165057

	* lto-symtab.c (lto_symtab_entry_def): Add guessed field.
	(lto_symtab_resolve_symbols): Set it.
	(lto_symtab_merge_decls_1): Do not compute used_from_object_file;
	store resolution field in cgraph/varpool.
	* cgraph.c (cgraph_same_body_alias, cgraph_add_thunk): Return node.
	(cgraph_get_node_or_alias, cgraph_get_node_or_alias): Constify.
	(cgraph_dump_node): Drop used_from_object_file.
	(cgraph_clone_node, cgraph_create_virtual_clone): Likewise.
	(cgraph_function_body_availability): Use decl_replaceable_p.
	(cgraph_make_node_local): Set resolution to LDPR_PREVAILING_DEF_IRONLY.
	(cgraph_can_remove_if_no_direct_calls_and_refs): Use
	cgraph_used_from_object_file_p.
	(cgraph_will_be_removed_from_program_if_no_direct_calls): Use
	cgraph_used_from_object_file_p.
	(resolution_used_from_other_file_p): New functoin.
	(cgraph_used_from_object_file_p): New predicate.
	* cgraph.h: Include plugin-api.h
	(struct cgraph_local_info): Remove used_from_object_file.
	(struct cgraph_node): Add resolution field.
	(struct varpool_node): Likewise; remove used_from_object_file;
	reove const_value_known.
	(cgraph_get_node, cgraph_get_node_or_alias, cgraph_node,
	cgraph_same_body_alias, cgraph_add_thunk): Update prototypes.
	(resolution_used_from_other_file_p, cgraph_used_from_object_file_p,
	varpool_used_from_object_file_p): Declare.
	(varpool_get_node, varpool_extra_name_alias): Update prototype.
	* tree.h (DECL_REPLACEABLE_P): Remove.
	(decl_replaceable_p, decl_binds_to_current_def_p): Declare.
	* final.c (rest_of_clean_state): Use decl_binds_to_current_def_p.
	* lto-cgraph.c (lto_output_node, lto_output_varpool_node,
	input_overwrite_node, input_node, input_varpool_node): Stream
	resolution.
	* expr.c (expand_expr_real_1): Use const_value_known_p
	* ipa.c (ipa_discover_readonly_nonaddressable_var): Do not set
	const_value_known.
	(cgraph_externally_visible_p): Use cgraph_used_from_object_file_p.
	(function_and_variable_visibility): Set resolution for local vars
	and functions.
	use varpool_used_from_object_file_p.
	* varasm.c (resolution_to_local_definition_p, resolution_local_p): New
	static functions.
	(default_binds_local_p_1): Use resolutoin info.
	(decl_binds_to_current_def_p, decl_replaceable_p): New functions.
	* varpool.c (varpool_get_node): Constify.
	(const_value_known_p): Do not use vnode->const_value_known;
	use decl_replaceable_p.
	(varpool_finalize_decl): Do not set const_value_known.
	(cgraph_variable_initializer_availability): Use decl_replaceable_p
	(varpool_extra_name_alias): Return new node.
	(varpool_used_from_object_file_p): New function.

	* decl.c (finish_function): Use decl_replaceable_p
	* method.c (make_alias_for_thunk): Update call of cgraph_same_body_alias.

	* lto.c (lto_promote_cross_file_statics): Use const_value_known_p.

From-SVN: r164610