GCC Middle and Back End API Reference
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#include <cgraph.h>
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unsigned | output: 1 |
ENUM_BITFIELD(symtab_type) type ENUM_BITFIELD(ld_plugin_symbol_resolution) resolution unsigned | definition: 1 |
unsigned | alias: 1 |
unsigned | weakref: 1 |
unsigned | cpp_implicit_alias: 1 |
unsigned | analyzed: 1 |
unsigned | externally_visible: 1 |
unsigned | force_output: 1 |
unsigned | forced_by_abi: 1 |
unsigned | unique_name: 1 |
unsigned | used_from_other_partition: 1 |
unsigned | in_other_partition: 1 |
unsigned | address_taken: 1 |
int | order |
tree | decl |
symtab_node | next |
symtab_node | previous |
symtab_node | next_sharing_asm_name |
symtab_node | previous_sharing_asm_name |
symtab_node | same_comdat_group |
struct ipa_ref_list | ref_list |
tree | alias_target |
struct lto_file_decl_data * | lto_file_data |
PTR | aux |
The varpool data structure. Each static variable decl has assigned varpool_node.
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True when symbol is an alias. Set by assemble_alias.
Referenced by cgraph_create_empty_node(), cgraph_create_function_alias(), contains_hot_call_p(), fixup_same_cpp_alias_visibility(), print_all_lattices(), process_common_attributes(), propagate_aggs_accross_jump_function(), read_inline_edge_summary(), varpool_output_variables(), and varpool_remove_unreferenced_decls().
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Alias target. May be either DECL pointer or ASSEMBLER_NAME pointer depending to what was known to frontend on the creation time. Once alias is resolved, this pointer become NULL.
Referenced by cgraph_create_empty_node(), output_weakrefs(), and varpool_output_variables().
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Set once the definition was analyzed. The list of references and other properties are built during analysis.
Referenced by cgraph_process_new_functions(), contains_hot_call_p(), enqueue_node(), lto_output_varpool_node(), gcc::pass_manager::pass_manager(), update_call_expr(), and varpool_remove_unreferenced_decls().
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Referenced by ipa_free_postorder_info(), ipa_reverse_postorder(), searchc(), and symtab_remove_unreachable_nodes().
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C++ frontend produce same body aliases and extra name aliases for virtual functions and vtables that are obviously equivalent. Those aliases are bit special, especially because C++ frontend visibility code is so ugly it can not get them right at first time and their visibility needs to be copied from their "masters" at the end of parsing.
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Declaration representing the symbol.
Referenced by assemble_align(), cgraph_call_node_duplication_hooks(), cgraph_can_remove_if_no_direct_calls_and_refs_p(), cgraph_edge_cannot_lead_to_return(), cgraph_materialize_clone(), cgraph_node_cannot_be_local_p_1(), cgraph_set_const_flag_1(), cgraph_set_nothrow_flag_1(), cgraph_unnest_node(), clone_inlined_nodes(), contains_hot_call_p(), debug_symtab(), debug_varpool_node_set(), dump_symtab(), dump_varpool_node_set(), eq_assembler_name(), eq_node(), fixup_same_cpp_alias_visibility(), handle_alias_pairs(), hash_node(), hash_node_by_assembler_name(), init_alias_vars(), input_overwrite_node(), ipa_alloc_node_params(), ipa_analyze_call_uses(), ipa_discover_readonly_nonaddressable_vars(), ipa_reference_get_not_read_global(), ipa_reverse_postorder(), lower_emutls_phi_arg(), lto_out_decl_state_written_size(), lto_output_varpool_node(), output_weakrefs(), gcc::pass_manager::pass_manager(), predicate_for_phi_result(), process_common_attributes(), process_function_and_variable_attributes(), remove_preds_and_fake_succs(), report_inline_failed_reason(), save_debug_info_for_decl(), set_reference_optimization_summary(), spread_undeadness(), symtab_dissolve_same_comdat_group_list(), symtab_nonoverwritable_alias(), varpool_node_for_decl(), varpool_output_variables(), varpool_remove_initializer(), varpool_remove_unreferenced_decls(), walk_all_functions(), walk_polymorphic_call_targets(), and write_symbol().
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Type of the symbol.
The symbols resolution.
Flags representing the symbol type.
True when symbol corresponds to a definition in current unit. set via cgraph_finalize_function or varpool_finalize_decl
Referenced by cgraph_create_empty_node(), cgraph_create_function_alias(), clone_inlined_nodes(), comp_type_attributes(), declare_weak(), dump_varpool_node_set(), lto_output_varpool_node(), maybe_record_node(), process_common_attributes(), propagate_aggs_accross_jump_function(), read_inline_edge_summary(), symtab_remove_unreachable_nodes(), update_call_expr(), varpool_finalize_decl(), varpool_output_variables(), and walk_polymorphic_call_targets().
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Visibility and linkage flags.
Set when function is visible by other units.
Referenced by cgraph_unnest_node(), clone_inlined_nodes(), function_and_variable_visibility(), init_alias_vars(), and update_call_expr().
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The symbol will be assumed to be used in an invisiable way (like by an toplevel asm statement).
Referenced by cgraph_node_remove_callees(), and init_alias_vars().
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Like FORCE_OUTPUT, but in the case it is ABI requiring the symbol to be exported. Unlike FORCE_OUTPUT this flag gets cleared to symbols promoted to static and it does not inhibit optimization.
Referenced by cgraph_node_remove_callees(), cgraph_unnest_node(), and function_and_variable_visibility().
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Set when function is available in the other LTRANS partition. During WPA output it is used to mark nodes that are present in multiple partitions.
Referenced by symtab_remove_unreachable_nodes().
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File stream where this node is being written to.
Referenced by debug_varpool_node_set(), and remap_hint_predicate().
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Linked list of symbol table entries starting with symtab_nodes.
Referenced by cgraph_node_remove_callees(), comdat_can_be_unshared_p_1(), enqueue_node(), and symtab_add_to_same_comdat_group().
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Linked list of symbols with the same asm name. There may be multiple entries for single symbol name during LTO, because symbols are renamed only after partitioning. Because inline clones are kept in the assembler name has, they also produce duplicate entries. There are also several long standing bugs where frontends and builtin code produce duplicated decls.
Referenced by eq_assembler_name().
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Ordering of all symtab entries.
Referenced by cgraph_edge_remove_caller(), free_varpool_node_set(), input_overwrite_node(), known_aggs_to_agg_replacement_list(), possible_polymorphic_call_target_p(), print_all_lattices(), remove_node_data(), and want_early_inline_function_p().
unsigned varpool_node::output |
Set when variable is scheduled to be assembled.
Referenced by varpool_remove_initializer().
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Referenced by eq_assembler_name().
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Vectors of referring and referenced entities.
Referenced by dump_cgraph(), ipa_find_reference(), ipa_record_reference(), ipa_ref_has_aliases_p(), ipa_ref_referring_ref_list(), ipa_ref_referring_varpool_node(), ipa_remove_stmt_references(), lto_out_decl_state_written_size(), lto_output_varpool_node(), symtab_insert_node_to_hashtable(), symtab_resolve_alias(), and varpool_create_variable_alias().
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Circular list of nodes in the same comdat group if non-NULL.
Referenced by comdat_can_be_unshared_p_1(), enqueue_node(), symtab_add_to_same_comdat_group(), and symtab_insert_node_to_hashtable().
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True when the name is known to be unique and thus it does not need mangling.
Referenced by cgraph_unnest_node().
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WHOPR Partitioning flags. These flags are used at ltrans stage when only part of the callgraph is available.
Set when variable is used from other LTRANS partition.
Referenced by init_alias_vars().
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True when alias is a weakref.
Referenced by cgraph_create_empty_node(), and varpool_output_variables().