1/* GCC core type declarations. 2 Copyright (C) 2002-2015 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify it under 7the terms of the GNU General Public License as published by the Free 8Software Foundation; either version 3, or (at your option) any later 9version. 10 11GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12WARRANTY; without even the implied warranty of MERCHANTABILITY or 13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14for more details. 15 16Under Section 7 of GPL version 3, you are granted additional 17permissions described in the GCC Runtime Library Exception, version 183.1, as published by the Free Software Foundation. 19 20You should have received a copy of the GNU General Public License and 21a copy of the GCC Runtime Library Exception along with this program; 22see 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 46typedef int64_t gcov_type; 47typedef uint64_t gcov_type_unsigned; 48 49struct bitmap_head; 50typedef struct bitmap_head *bitmap; 51typedef const struct bitmap_head *const_bitmap; 52struct simple_bitmap_def; 53typedef struct simple_bitmap_def *sbitmap; 54typedef const struct simple_bitmap_def *const_sbitmap; 55struct rtx_def; 56typedef struct rtx_def *rtx; 57typedef const struct rtx_def *const_rtx; 58 59/* Subclasses of rtx_def, using indentation to show the class 60 hierarchy, along with the relevant invariant. 61 Where possible, keep this list in the same order as in rtl.def. */ 62class rtx_def; 63 class rtx_expr_list; /* GET_CODE (X) == EXPR_LIST */ 64 class rtx_insn_list; /* GET_CODE (X) == INSN_LIST */ 65 class rtx_sequence; /* GET_CODE (X) == SEQUENCE */ 66 class rtx_insn; 67 class rtx_debug_insn; /* DEBUG_INSN_P (X) */ 68 class rtx_nonjump_insn; /* NONJUMP_INSN_P (X) */ 69 class rtx_jump_insn; /* JUMP_P (X) */ 70 class rtx_call_insn; /* CALL_P (X) */ 71 class rtx_jump_table_data; /* JUMP_TABLE_DATA_P (X) */ 72 class rtx_barrier; /* BARRIER_P (X) */ 73 class rtx_code_label; /* LABEL_P (X) */ 74 class rtx_note; /* NOTE_P (X) */ 75 76struct rtvec_def; 77typedef struct rtvec_def *rtvec; 78typedef const struct rtvec_def *const_rtvec; 79struct hwivec_def; 80typedef struct hwivec_def *hwivec; 81typedef const struct hwivec_def *const_hwivec; 82union tree_node; 83typedef union tree_node *tree; 84typedef const union tree_node *const_tree; 85typedef struct gimple_statement_base *gimple; 86typedef const struct gimple_statement_base *const_gimple; 87typedef gimple gimple_seq; 88struct gimple_stmt_iterator; 89 90/* Forward decls for leaf gimple subclasses (for individual gimple codes). 91 Keep this in the same order as the corresponding codes in gimple.def. */ 92 93struct gcond; 94struct gdebug; 95struct ggoto; 96struct glabel; 97struct gswitch; 98struct gassign; 99struct gasm; 100struct gcall; 101struct gtransaction; 102struct greturn; 103struct gbind; 104struct gcatch; 105struct geh_filter; 106struct geh_mnt; 107struct geh_else; 108struct gresx; 109struct geh_dispatch; 110struct gphi; 111struct gtry; 112struct gomp_atomic_load; 113struct gomp_atomic_store; 114struct gomp_continue; 115struct gomp_critical; 116struct gomp_for; 117struct gomp_parallel; 118struct gomp_task; 119struct gomp_sections; 120struct gomp_single; 121struct gomp_target; 122struct gomp_teams; 123 124union section; 125typedef union section section; 126struct gcc_options; 127struct cl_target_option; 128struct cl_optimization; 129struct cl_option; 130struct cl_decoded_option; 131struct cl_option_handlers; 132struct diagnostic_context; 133struct pretty_printer; 134 135/* Address space number for named address space support. */ 136typedef unsigned char addr_space_t; 137 138/* The value of addr_space_t that represents the generic address space. */ 139#define ADDR_SPACE_GENERIC 0 140#define ADDR_SPACE_GENERIC_P(AS) ((AS) == ADDR_SPACE_GENERIC) 141 142/* The major intermediate representations of GCC. */ 143enum ir_type { 144 IR_GIMPLE, 145 IR_RTL_CFGRTL, 146 IR_RTL_CFGLAYOUT 147}; 148 149/* Provide forward struct declaration so that we don't have to include 150 all of cpplib.h whenever a random prototype includes a pointer. 151 Note that the cpp_reader and cpp_token typedefs remain part of 152 cpplib.h. */ 153 154struct cpp_reader; 155struct cpp_token; 156 157/* The thread-local storage model associated with a given VAR_DECL 158 or SYMBOL_REF. This isn't used much, but both trees and RTL refer 159 to it, so it's here. */ 160enum tls_model { 161 TLS_MODEL_NONE, 162 TLS_MODEL_EMULATED, 163 TLS_MODEL_REAL, 164 TLS_MODEL_GLOBAL_DYNAMIC = TLS_MODEL_REAL, 165 TLS_MODEL_LOCAL_DYNAMIC, 166 TLS_MODEL_INITIAL_EXEC, 167 TLS_MODEL_LOCAL_EXEC 168}; 169 170/* Types of ABI for an offload compiler. */ 171enum offload_abi { 172 OFFLOAD_ABI_UNSET, 173 OFFLOAD_ABI_LP64, 174 OFFLOAD_ABI_ILP32 175}; 176 177/* Types of unwind/exception handling info that can be generated. */ 178 179enum unwind_info_type 180{ 181 UI_NONE, 182 UI_SJLJ, 183 UI_DWARF2, 184 UI_TARGET, 185 UI_SEH 186}; 187 188/* Callgraph node profile representation. */ 189enum node_frequency { 190 /* This function most likely won't be executed at all. 191 (set only when profile feedback is available or via function attribute). */ 192 NODE_FREQUENCY_UNLIKELY_EXECUTED, 193 /* For functions that are known to be executed once (i.e. constructors, destructors 194 and main function. */ 195 NODE_FREQUENCY_EXECUTED_ONCE, 196 /* The default value. */ 197 NODE_FREQUENCY_NORMAL, 198 /* Optimize this function hard 199 (set only when profile feedback is available or via function attribute). */ 200 NODE_FREQUENCY_HOT 201}; 202 203/* Possible initialization status of a variable. When requested 204 by the user, this information is tracked and recorded in the DWARF 205 debug information, along with the variable's location. */ 206enum var_init_status 207{ 208 VAR_INIT_STATUS_UNKNOWN, 209 VAR_INIT_STATUS_UNINITIALIZED, 210 VAR_INIT_STATUS_INITIALIZED 211}; 212 213 214struct edge_def; 215typedef struct edge_def *edge; 216typedef const struct edge_def *const_edge; 217struct basic_block_def; 218typedef struct basic_block_def *basic_block; 219typedef const struct basic_block_def *const_basic_block; 220 221#define obstack_chunk_alloc xmalloc 222#define obstack_chunk_free free 223#define OBSTACK_CHUNK_SIZE 0 224#define gcc_obstack_init(OBSTACK) \ 225 obstack_specify_allocation ((OBSTACK), OBSTACK_CHUNK_SIZE, 0, \ 226 obstack_chunk_alloc, \ 227 obstack_chunk_free) 228 229/* enum reg_class is target specific, so it should not appear in 230 target-independent code or interfaces, like the target hook declarations 231 in target.h. */ 232typedef int reg_class_t; 233 234class rtl_opt_pass; 235 236namespace gcc { 237 class context; 238} 239 240#else 241 242struct _dont_use_rtx_here_; 243struct _dont_use_rtvec_here_; 244struct _dont_use_rtx_insn_here_; 245union _dont_use_tree_here_; 246#define rtx struct _dont_use_rtx_here_ * 247#define const_rtx struct _dont_use_rtx_here_ * 248#define rtvec struct _dont_use_rtvec_here * 249#define const_rtvec struct _dont_use_rtvec_here * 250#define rtx_insn struct _dont_use_rtx_insn_here_ 251#define tree union _dont_use_tree_here_ * 252#define const_tree union _dont_use_tree_here_ * 253 254#endif 255 256/* Classes of functions that compiler needs to check 257 whether they are present at the runtime or not. */ 258enum function_class { 259 function_c94, 260 function_c99_misc, 261 function_c99_math_complex, 262 function_sincos, 263 function_c11_misc 264}; 265 266/* Suppose that higher bits are target dependent. */ 267#define MEMMODEL_MASK ((1<<16)-1) 268 269/* Legacy sync operations set this upper flag in the memory model. This allows 270 targets that need to do something stronger for sync operations to 271 differentiate with their target patterns and issue a more appropriate insn 272 sequence. See bugzilla 65697 for background. */ 273#define MEMMODEL_SYNC (1<<15) 274 275/* Memory model without SYNC bit for targets/operations that do not care. */ 276#define MEMMODEL_BASE_MASK (MEMMODEL_SYNC-1) 277 278/* Memory model types for the __atomic* builtins. 279 This must match the order in libstdc++-v3/include/bits/atomic_base.h. */ 280enum memmodel 281{ 282 MEMMODEL_RELAXED = 0, 283 MEMMODEL_CONSUME = 1, 284 MEMMODEL_ACQUIRE = 2, 285 MEMMODEL_RELEASE = 3, 286 MEMMODEL_ACQ_REL = 4, 287 MEMMODEL_SEQ_CST = 5, 288 MEMMODEL_LAST = 6, 289 MEMMODEL_SYNC_ACQUIRE = MEMMODEL_ACQUIRE | MEMMODEL_SYNC, 290 MEMMODEL_SYNC_RELEASE = MEMMODEL_RELEASE | MEMMODEL_SYNC, 291 MEMMODEL_SYNC_SEQ_CST = MEMMODEL_SEQ_CST | MEMMODEL_SYNC 292}; 293 294/* Support for user-provided GGC and PCH markers. The first parameter 295 is a pointer to a pointer, the second a cookie. */ 296typedef void (*gt_pointer_operator) (void *, void *); 297 298#if !defined (HAVE_UCHAR) 299typedef unsigned char uchar; 300#endif 301 302#endif /* coretypes.h */ 303