1 /* GCC core type declarations. 2 Copyright (C) 2002-2013 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify it under 7 the terms of the GNU General Public License as published by the Free 8 Software Foundation; either version 3, or (at your option) any later 9 version. 10 11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12 WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 for more details. 15 16 Under Section 7 of GPL version 3, you are granted additional 17 permissions described in the GCC Runtime Library Exception, version 18 3.1, as published by the Free Software Foundation. 19 20 You should have received a copy of the GNU General Public License and 21 a copy of the GCC Runtime Library Exception along with this program; 22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 <http://www.gnu.org/licenses/>. */ 24 25 /* Provide forward declarations of core types which are referred to by 26 most of the compiler. This allows header files to use these types 27 (e.g. in function prototypes) without concern for whether the full 28 definitions are visible. Some other declarations that need to be 29 universally visible are here, too. 30 31 In the context of tconfig.h, most of these have special definitions 32 which prevent them from being used except in further type 33 declarations. This is a kludge; the right thing is to avoid 34 including the "tm.h" header set in the context of tconfig.h, but 35 we're not there yet. */ 36 37 #ifndef GCC_CORETYPES_H 38 #define GCC_CORETYPES_H 39 40 #ifndef GTY 41 #define GTY(x) /* nothing - marker for gengtype */ 42 #endif 43 44 #ifndef USED_FOR_TARGET 45 46 struct bitmap_head_def; 47 typedef struct bitmap_head_def *bitmap; 48 typedef const struct bitmap_head_def *const_bitmap; 49 struct simple_bitmap_def; 50 typedef struct simple_bitmap_def *sbitmap; 51 typedef const struct simple_bitmap_def *const_sbitmap; 52 struct rtx_def; 53 typedef struct rtx_def *rtx; 54 typedef const struct rtx_def *const_rtx; 55 struct rtvec_def; 56 typedef struct rtvec_def *rtvec; 57 typedef const struct rtvec_def *const_rtvec; 58 union tree_node; 59 typedef union tree_node *tree; 60 typedef const union tree_node *const_tree; 61 union gimple_statement_d; 62 typedef union gimple_statement_d *gimple; 63 typedef const union gimple_statement_d *const_gimple; 64 typedef gimple gimple_seq; 65 union section; 66 typedef union section section; 67 struct gcc_options; 68 struct cl_target_option; 69 struct cl_optimization; 70 struct cl_option; 71 struct cl_decoded_option; 72 struct cl_option_handlers; 73 struct diagnostic_context; 74 typedef struct diagnostic_context diagnostic_context; 75 struct pretty_print_info; 76 typedef struct pretty_print_info pretty_printer; 77 78 /* Address space number for named address space support. */ 79 typedef unsigned char addr_space_t; 80 81 /* The value of addr_space_t that represents the generic address space. */ 82 #define ADDR_SPACE_GENERIC 0 83 #define ADDR_SPACE_GENERIC_P(AS) ((AS) == ADDR_SPACE_GENERIC) 84 85 /* The major intermediate representations of GCC. */ 86 enum ir_type { 87 IR_GIMPLE, 88 IR_RTL_CFGRTL, 89 IR_RTL_CFGLAYOUT 90 }; 91 92 /* Provide forward struct declaration so that we don't have to include 93 all of cpplib.h whenever a random prototype includes a pointer. 94 Note that the cpp_reader and cpp_token typedefs remain part of 95 cpplib.h. */ 96 97 struct cpp_reader; 98 struct cpp_token; 99 100 /* The thread-local storage model associated with a given VAR_DECL 101 or SYMBOL_REF. This isn't used much, but both trees and RTL refer 102 to it, so it's here. */ 103 enum tls_model { 104 TLS_MODEL_NONE, 105 TLS_MODEL_EMULATED, 106 TLS_MODEL_REAL, 107 TLS_MODEL_GLOBAL_DYNAMIC = TLS_MODEL_REAL, 108 TLS_MODEL_LOCAL_DYNAMIC, 109 TLS_MODEL_INITIAL_EXEC, 110 TLS_MODEL_LOCAL_EXEC 111 }; 112 113 /* Types of unwind/exception handling info that can be generated. */ 114 115 enum unwind_info_type 116 { 117 UI_NONE, 118 UI_SJLJ, 119 UI_DWARF2, 120 UI_TARGET, 121 UI_SEH 122 }; 123 124 /* Callgraph node profile representation. */ 125 enum node_frequency { 126 /* This function most likely won't be executed at all. 127 (set only when profile feedback is available or via function attribute). */ 128 NODE_FREQUENCY_UNLIKELY_EXECUTED, 129 /* For functions that are known to be executed once (i.e. constructors, destructors 130 and main function. */ 131 NODE_FREQUENCY_EXECUTED_ONCE, 132 /* The default value. */ 133 NODE_FREQUENCY_NORMAL, 134 /* Optimize this function hard 135 (set only when profile feedback is available or via function attribute). */ 136 NODE_FREQUENCY_HOT 137 }; 138 139 /* Possible initialization status of a variable. When requested 140 by the user, this information is tracked and recorded in the DWARF 141 debug information, along with the variable's location. */ 142 enum var_init_status 143 { 144 VAR_INIT_STATUS_UNKNOWN, 145 VAR_INIT_STATUS_UNINITIALIZED, 146 VAR_INIT_STATUS_INITIALIZED 147 }; 148 149 150 struct edge_def; 151 typedef struct edge_def *edge; 152 typedef const struct edge_def *const_edge; 153 struct basic_block_def; 154 typedef struct basic_block_def *basic_block; 155 typedef const struct basic_block_def *const_basic_block; 156 157 #define obstack_chunk_alloc ((void *(*) (long)) xmalloc) 158 #define obstack_chunk_free ((void (*) (void *)) free) 159 #define OBSTACK_CHUNK_SIZE 0 160 #define gcc_obstack_init(OBSTACK) \ 161 _obstack_begin ((OBSTACK), OBSTACK_CHUNK_SIZE, 0, \ 162 obstack_chunk_alloc, \ 163 obstack_chunk_free) 164 165 /* enum reg_class is target specific, so it should not appear in 166 target-independent code or interfaces, like the target hook declarations 167 in target.h. */ 168 typedef int reg_class_t; 169 170 #else 171 172 struct _dont_use_rtx_here_; 173 struct _dont_use_rtvec_here_; 174 union _dont_use_tree_here_; 175 #define rtx struct _dont_use_rtx_here_ * 176 #define const_rtx struct _dont_use_rtx_here_ * 177 #define rtvec struct _dont_use_rtvec_here * 178 #define const_rtvec struct _dont_use_rtvec_here * 179 #define tree union _dont_use_tree_here_ * 180 #define const_tree union _dont_use_tree_here_ * 181 182 #endif 183 184 /* Memory model types for the __atomic* builtins. 185 This must match the order in libstdc++-v3/include/bits/atomic_base.h. */ 186 enum memmodel 187 { 188 MEMMODEL_RELAXED = 0, 189 MEMMODEL_CONSUME = 1, 190 MEMMODEL_ACQUIRE = 2, 191 MEMMODEL_RELEASE = 3, 192 MEMMODEL_ACQ_REL = 4, 193 MEMMODEL_SEQ_CST = 5, 194 MEMMODEL_LAST = 6 195 }; 196 197 /* Suppose that higher bits are target dependant. */ 198 #define MEMMODEL_MASK ((1<<16)-1) 199 200 /* Support for user-provided GGC and PCH markers. The first parameter 201 is a pointer to a pointer, the second a cookie. */ 202 typedef void (*gt_pointer_operator) (void *, void *); 203 204 #if !defined (HAVE_UCHAR) 205 typedef unsigned char uchar; 206 #endif 207 208 #endif /* coretypes.h */ 209