Here is a list of all struct and union fields with links to the structures/unions they belong to:

- i -

• i : undo , ssa_operand_iterator_d , max_alignment
• i1 : delay_pair
• i2 : delay_pair
• ibit : mode_data
• icode : lra_insn_recog_data , extraction_insn , secondary_reload_info
• id : group_info , operand_entry , oecount_s , dw_trace_info , variable_info , poly_dr , odr_type_d , ira_object , lto_file_decl_data , allocation_object_def , ps_insn , du_head , alloc_pool_def , vinsn_def , statistics_counter_s , bitmap_descriptor_d , tree_identifier , mem_ref , df_problem , iv_use , iv_cand , df_base_ref , iv_inv_expr_ent , pre_expr_d
• ident : coverage_data , counts_entry , gcov_fn_info , block_info , function_info
• IDENTIFIER_POINTER() : gdbhooks.Tree
• identifier_size : lang_hooks
• idx : loop_iterator , range_entry , strinfo_struct , stridxlist
• ie : attr_value_list
• ignore : edge_info
• ignore_block : gcc_debug_hooks
• ignore_set_reg : kill_set_value_data
• ii : partial_schedule
• il : basic_block_def
• imag : tree_complex
• imm_use : immediate_use_iterator_d
• implicit_preds : constraint_graph
• implicit_sets : deps_reg
• important : iv_cand
• important_automata_list : insn_reserv_decl
• important_candidates : ivopts_data
• important_p : ainsn
• imported_module_or_decl : gcc_debug_hooks
• in : df_rd_bb_info , df_md_bb_info , df_lr_bb_info , df_live_bb_info , df_word_lr_bb_info , bb_info , reload , variable_tracking_info_def , ddg_node , df_lr_problem_data , df_live_problem_data
• in_a : comparison
• in_b : comparison
• in_callee_queue : tm_ipa_cg_data
• in_cleanup_point_expr : gimplify_ctx
• in_edge : niter_desc
• in_graph_p : allocno_color_data
• in_insn_reserv : bypass_decl
• in_other_partition : symtab_node_base
• in_p : range_entry
• in_partition : lto_encoder_entry
• in_pattern : bypass_decl
• in_pattern_p : _stmt_vec_info
• in_post_call_group_p : deps_desc
• in_progress : name_expansion
• in_reg : reload
• in_set_p : unit_decl
• in_ssa_p : gimple_df
• in_std_section : dw_fde_struct
• in_struct : rtx_def
• in_trace : bbro_basic_block_data_def
• in_use : dw_line_info_table_struct , cfa_loc , temp_slot , page_group
• in_use_p : page_entry
• in_worklist : tm_ipa_cg_data , same_succ_def
• inc : reload
• inc_constant : mem_inc_info
• inc_input : mem_inc_info
• inc_insn : mem_inc_info
• include_uninstrumented_p : bb2reg_stuff
• incmem_ok : operand_alternative
• incoming : hwloop_info_d , bb_rename_info , parm_reg
• incoming_dest : hwloop_info_d
• incoming_edges : redirection_data
• incoming_open_chains_set : bb_rename_info
• incoming_src : hwloop_info_d
• incompiler : infile
• incomplete_type_error : lang_hooks_for_types
• incr : incr_info_d , gimple_omp_for_iter
• incremented_off_time : ticker
• indent : print_options
• indent_skip : pretty_printer
• indep_loop : mem_ref
• independent_p : mem_ref
• index : eh_region_d , ls_expr , operand_data , slsr_cand_d , gimple_omp_for_iter , clast_name_index , choice_entry , ipcp_value_source , ipa_agg_replacement_value , cost_classes , lto_symtab_encoder_iterator , res_pair , address_info , st_expr , constructor_elt_d , dump_node_info , dump_info , goto_queue_node , mem_address , bb_cluster_def , oc_local_state , basic_block_def , edge_iterator , cgraph_node_set_iterator , varpool_node_set_iterator , indirect_string_node , addr_table_entry_struct , eh_landing_pad_d
• index1 : htab_bb_copy_original_entry
• index2 : htab_bb_copy_original_entry
• index_by_depth : page_entry
• index_expr : switch_conv_info
• index_number : data
• index_term : address_info
• index_to_edge : edge_list
• indices : data_reference
• indirect : cfa_loc
• indirect_call_cost : eni_weights_d
• indirect_calls : cgraph_node
• indirect_cycles : constraint_graph
• indirect_info : cgraph_edge
• indirect_inlining_edge : cgraph_edge
• indirect_unknown_callee : cgraph_edge
• indx : bitmap_element_def , bitmap_head_def
• infinite : niter_desc
• info : ddg_node , ddg_edge , macinfo_struct , incoming_args , options , walk_stmt_info , var_info_d , ssa_name_info , elv_data
• inhibit_notes_p : diagnostic_context
• init : gcc_debug_hooks , df_md_bb_info , hook_desc , lang_hooks , reg_equivs_s , innermost_loop_behavior , reduction_info , location_chain_def
• init_bb : incr_info_d
• init_fun : df_problem
• init_insns : equivalence , ira_reg_equiv
• init_options : lang_hooks
• init_options_struct : lang_hooks
• init_ready_list : haifa_sched_info
• init_ts : lang_hooks
• initial : gimple_omp_for_iter
• initial_offset : elim_table
• initial_value : arg_data , reduction_info
• initialize_diagnostics : lang_hooks
• initializer : incr_info_d , lto_encoder_entry
• inits : chain
• inlinable : inline_summary
• inline_failed : cgraph_edge
• inlined_to : cgraph_global_info
• inmode : reload
• inner : loop , eh_region_d , omp_region , address_info , tm_region , nesting_info
• inner_dest : set
• inner_loop : data_dependence_relation
• innermost : data_reference
• inpbitmap : input_file_st
• inpisplugin : input_file_st
• inpname : input_file_st
• inpoutf : input_file_st
• input : input_reload
• input_location : streamer_hooks
• inputs_valid : comparison
• insert() : pointer_map< T >
• inside_cost : _vect_peel_extended_info
• insn : ext_cand , queued_debug_insn_change , du_chain , insn_chain , dep_replacement , reg_use_data , reg_set_data , _fence , micro_operation_def , emit_note_data_def , modifies_mem , count_use_info , _sd_iterator , recog_data_d , sloc , model_insn_info , df_insn_info , comparison , inc_insn , mem_insn , btr_user_s , btr_def_s , csa_reflist , record_stack_refs_data , insn_link , comparison_use , occr , change_cc_mode_args , ddg_node , insn_info , arc , decision_test , move , ira_allocno_copy , use , invariant , iv_to_split , var_to_expand , lra_insn_recog_data , ps_reg_move_info , no_conflict_data , unoccr , reg_use , validate_replace_src_data , peep2_insn_data
• insn_a : noce_if_info
• insn_b : noce_if_info
• insn_bitmap : lra_reg
• insn_bitmaps : df_scan_problem_data
• insn_code : insn_def , code_ptr
• insn_equiv_class_num : ainsn
• insn_equiv_classes_num : automaton
• insn_finishes_block_p : haifa_sched_info
• insn_index : insn_def
• insn_info : df_base_ref
• insn_num : insn_reserv_decl , insn_reserv
• insn_pool : df_scan_problem_data
• insn_ptr : seginfo
• insn_queue : haifa_saved_data
• insn_reserv : decl
• insn_reserv_decl : ainsn
• insn_rtx : vinsn_def
• insn_static_data : lra_insn_recog_data
• insns : edge_def , df_d , clobber_pat , extraction , usage_insns , to_inherit
• insns_num : description
• insns_size : df_d
• insns_to_delete : df_d
• insns_to_notes_rescan : df_d
• insns_to_rescan : df_d
• insns_to_split : opt_info
• insns_with_var_to_expand : opt_info
• install_body_with_frame_cleanup : lang_hooks_for_cilkplus
• instantiate_cache_type() : instantiate_cache_type
• instantiated_below : scev_info_str
• int::opt_info_switch_p() : gcc::dump_manager
• int_cst : tree_int_cst
• int_start : histogram_value_t
• inter_tick : _haifa_insn_data
• internal_arg_pointer : incoming_args
• internal_error : diagnostic_context
• internal_fn : gimple_statement_call
• into_ssa : gimplify_ctx
• intval : decision_test
• intvl : histogram_value_t
• inv : prime_ent , invariant_expr_entry
• inv_expr_id : ivopts_data , cost_pair
• inv_expr_tab : ivopts_data
• inv_id : version_info
• inv_m2 : prime_ent
• invalid : ls_expr
• invalid_chain : block_info
• invalid_hash : godump_container
• invariant : ira_reg_equiv , reg_equivs_s
• invariantness_dom_walker() : invariantness_dom_walker
• inverse : same_succ_def
• invert : use_pred_info , norm_cond
• invno : def , invariant
• ipa_escaped : pt_solution
• ipa_opt_pass_d() : ipa_opt_pass_d
• ipa_pta : gimple_df
• ipa_transforms_to_apply : cgraph_node
• ipcp_orig_node : ipa_node_params
• ira : target_globals
• ira_int : target_globals
• irr_blocks : tm_region
• irrevocable_blocks_clone : tm_ipa_cg_data
• irrevocable_blocks_normal : tm_ipa_cg_data
• is_address : operand_alternative , constraint_data , lra_operand_data
• is_all_contexts_clone : ipa_node_params
• is_arg_equivalence : equivalence
• is_artificial_var : variable_info
• is_asm : recog_data_d
• is_call_non_return : arc_info
• is_call_return : block_info
• is_call_site : block_info
• is_caller_save_insn : insn_chain
• is_cilk_function : function
• is_combined_parallel : omp_region
• is_compression : lto_compression_stream
• is_const : attr_desc
• is_const_dbl : constraint_data
• is_const_int : constraint_data
• is_created() : hash_table< Descriptor, Allocator >
• is_empty() : vec< T, A, vl_embed > , vec< T, va_heap, vl_ptr >
• is_exit : nb_iter_bound
• is_extra : constraint_data
• is_fn_info : variable_info
• is_full_var : variable_info
• is_global_var : variable_info
• is_heap_var : variable_info
• is_irrevocable : tm_ipa_cg_data
• is_label : goto_queue_node
• is_large : store_info
• is_lb_inclusive : input_domain
• is_leaf : rtl_data
• is_lhs : walk_stmt_info
• is_load_insn : _haifa_insn_data
• is_memory : constraint_data
• is_minus_one() : double_int
• is_negative() : double_int
• is_nested : omp_context
• is_nonlocal_return : arc_info , block_info
• is_nonnull() : gdbhooks.Tree
• is_numeric : attr_desc
• is_one() : double_int
• is_operator : lra_operand_data , recog_data_d , insn_operand_data
• is_read : data_reference , data_ref_loc_d
• is_reduction : poly_bb
• is_register : constraint_data
• is_rflow_valid : fixup_edge_d
• is_set : store_info
• is_special : attr_desc
• is_special_var : variable_info
• is_speculative : candidate
• is_stmt : dw_line_info_table_struct
• is_throw : arc_info
• is_thunk : function
• is_ub_inclusive : input_domain
• is_unconditional : arc_info
• is_unknown_size_var : variable_info
• is_used : vtbl_map_node
• is_valid : candidate
• is_visited : augmenting_path_d
• is_zero() : double_int
• issue_more : _fence
• issue_prefetch_p : mem_ref
• it_was_placed_in_stack_for_DFA_forming : state
• it_was_placed_in_stack_for_NDFA_forming : state
• items : ipa_agg_jump_function
• iter : sparseset_def , gimple_statement_omp_for
• iter_inc : sparseset_def
• iter_name : subst_attr_to_iter_mapping
• iter_node : immediate_use_iterator_d
• iter_reg : hwloop_info_d
• iter_reg_used : hwloop_info_d
• iter_reg_used_outside : hwloop_info_d
• iter_type : omp_for_data , ssa_operand_iterator_d
• iterate() : vec< T, A, vl_embed > , vec< T, va_heap, vl_ptr > , vec< T, A, vl_embed >
• iterating : sparseset_def
• iterations : constraint_stats
• iterator() : hash_table< Descriptor, Allocator >::iterator , iterator_use , hash_table< Descriptor, Allocator >::iterator
• iterators : iterator_group
• itself : ipcp_param_lattices
• iv : version_info , biv_entry , iv_use
• iv_candidates : ivopts_data
• iv_to_split_head : opt_info
• iv_to_split_tail : opt_info
• iv_uses : ivopts_data
• ivopts_data : ifs_ivopts_data