1 /* GCC core type declarations. 2 Copyright (C) 2002-2014 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 typedef HOST_WIDEST_INT gcov_type; 47 typedef unsigned HOST_WIDEST_INT gcov_type_unsigned; 48 49 struct bitmap_head; 50 typedef struct bitmap_head *bitmap; 51 typedef const struct bitmap_head *const_bitmap; 52 struct simple_bitmap_def; 53 typedef struct simple_bitmap_def *sbitmap; 54 typedef const struct simple_bitmap_def *const_sbitmap; 55 struct rtx_def; 56 typedef struct rtx_def *rtx; 57 typedef const struct rtx_def *const_rtx; 58 struct rtvec_def; 59 typedef struct rtvec_def *rtvec; 60 typedef const struct rtvec_def *const_rtvec; 61 union tree_node; 62 typedef union tree_node *tree; 63 typedef const union tree_node *const_tree; 64 typedef struct gimple_statement_base *gimple; 65 typedef const struct gimple_statement_base *const_gimple; 66 typedef gimple gimple_seq; 67 struct gimple_stmt_iterator; 68 union section; 69 typedef union section section; 70 struct gcc_options; 71 struct cl_target_option; 72 struct cl_optimization; 73 struct cl_option; 74 struct cl_decoded_option; 75 struct cl_option_handlers; 76 struct diagnostic_context; 77 struct pretty_printer; 78 79 /* Address space number for named address space support. */ 80 typedef unsigned char addr_space_t; 81 82 /* The value of addr_space_t that represents the generic address space. */ 83 #define ADDR_SPACE_GENERIC 0 84 #define ADDR_SPACE_GENERIC_P(AS) ((AS) == ADDR_SPACE_GENERIC) 85 86 /* The major intermediate representations of GCC. */ 87 enum ir_type { 88 IR_GIMPLE, 89 IR_RTL_CFGRTL, 90 IR_RTL_CFGLAYOUT 91 }; 92 93 /* Provide forward struct declaration so that we don't have to include 94 all of cpplib.h whenever a random prototype includes a pointer. 95 Note that the cpp_reader and cpp_token typedefs remain part of 96 cpplib.h. */ 97 98 struct cpp_reader; 99 struct cpp_token; 100 101 /* The thread-local storage model associated with a given VAR_DECL 102 or SYMBOL_REF. This isn't used much, but both trees and RTL refer 103 to it, so it's here. */ 104 enum tls_model { 105 TLS_MODEL_NONE, 106 TLS_MODEL_EMULATED, 107 TLS_MODEL_REAL, 108 TLS_MODEL_GLOBAL_DYNAMIC = TLS_MODEL_REAL, 109 TLS_MODEL_LOCAL_DYNAMIC, 110 TLS_MODEL_INITIAL_EXEC, 111 TLS_MODEL_LOCAL_EXEC 112 }; 113 114 /* Types of unwind/exception handling info that can be generated. */ 115 116 enum unwind_info_type 117 { 118 UI_NONE, 119 UI_SJLJ, 120 UI_DWARF2, 121 UI_TARGET, 122 UI_SEH 123 }; 124 125 /* Callgraph node profile representation. */ 126 enum node_frequency { 127 /* This function most likely won't be executed at all. 128 (set only when profile feedback is available or via function attribute). */ 129 NODE_FREQUENCY_UNLIKELY_EXECUTED, 130 /* For functions that are known to be executed once (i.e. constructors, destructors 131 and main function. */ 132 NODE_FREQUENCY_EXECUTED_ONCE, 133 /* The default value. */ 134 NODE_FREQUENCY_NORMAL, 135 /* Optimize this function hard 136 (set only when profile feedback is available or via function attribute). */ 137 NODE_FREQUENCY_HOT 138 }; 139 140 /* Possible initialization status of a variable. When requested 141 by the user, this information is tracked and recorded in the DWARF 142 debug information, along with the variable's location. */ 143 enum var_init_status 144 { 145 VAR_INIT_STATUS_UNKNOWN, 146 VAR_INIT_STATUS_UNINITIALIZED, 147 VAR_INIT_STATUS_INITIALIZED 148 }; 149 150 151 struct edge_def; 152 typedef struct edge_def *edge; 153 typedef const struct edge_def *const_edge; 154 struct basic_block_def; 155 typedef struct basic_block_def *basic_block; 156 typedef const struct basic_block_def *const_basic_block; 157 158 #define obstack_chunk_alloc ((void *(*) (long)) xmalloc) 159 #define obstack_chunk_free ((void (*) (void *)) free) 160 #define OBSTACK_CHUNK_SIZE 0 161 #define gcc_obstack_init(OBSTACK) \ 162 _obstack_begin ((OBSTACK), OBSTACK_CHUNK_SIZE, 0, \ 163 obstack_chunk_alloc, \ 164 obstack_chunk_free) 165 166 /* enum reg_class is target specific, so it should not appear in 167 target-independent code or interfaces, like the target hook declarations 168 in target.h. */ 169 typedef int reg_class_t; 170 171 class rtl_opt_pass; 172 173 namespace gcc { 174 class context; 175 } 176 177 #else 178 179 struct _dont_use_rtx_here_; 180 struct _dont_use_rtvec_here_; 181 union _dont_use_tree_here_; 182 #define rtx struct _dont_use_rtx_here_ * 183 #define const_rtx struct _dont_use_rtx_here_ * 184 #define rtvec struct _dont_use_rtvec_here * 185 #define const_rtvec struct _dont_use_rtvec_here * 186 #define tree union _dont_use_tree_here_ * 187 #define const_tree union _dont_use_tree_here_ * 188 189 #endif 190 191 /* Classes of functions that compiler needs to check 192 whether they are present at the runtime or not. */ 193 enum function_class { 194 function_c94, 195 function_c99_misc, 196 function_c99_math_complex, 197 function_sincos 198 }; 199 200 /* Memory model types for the __atomic* builtins. 201 This must match the order in libstdc++-v3/include/bits/atomic_base.h. */ 202 enum memmodel 203 { 204 MEMMODEL_RELAXED = 0, 205 MEMMODEL_CONSUME = 1, 206 MEMMODEL_ACQUIRE = 2, 207 MEMMODEL_RELEASE = 3, 208 MEMMODEL_ACQ_REL = 4, 209 MEMMODEL_SEQ_CST = 5, 210 MEMMODEL_LAST = 6 211 }; 212 213 /* Suppose that higher bits are target dependent. */ 214 #define MEMMODEL_MASK ((1<<16)-1) 215 216 /* Support for user-provided GGC and PCH markers. The first parameter 217 is a pointer to a pointer, the second a cookie. */ 218 typedef void (*gt_pointer_operator) (void *, void *); 219 220 #if !defined (HAVE_UCHAR) 221 typedef unsigned char uchar; 222 #endif 223 224 #endif /* coretypes.h */ 225