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(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. * lto.c (lto_varpool_node_sets): New. (lto_1_to_1_map): Partition varpool too. (globalize_context_t, globalize_cross_file_statics, lto_scan_statics_in_ref_table, lto_scan_statics_in_cgraph_node, lto_scan_statics_in_remaining_global_vars): Remove. (lto_promote_cross_file_statics): Rewrite. (get_filename_for_set): Take vset argument. (lto_wpa_write_files): Pass around vsets. From-SVN: r158854
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