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* 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
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