gcc/coretypes.h

   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 int64_t gcov_type;
  47 typedef uint64_t 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
  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.  */
  62 class 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
  76 struct rtvec_def;
  77 typedef struct rtvec_def *rtvec;
  78 typedef const struct rtvec_def *const_rtvec;
  79 struct hwivec_def;
  80 typedef struct hwivec_def *hwivec;
  81 typedef const struct hwivec_def *const_hwivec;
  82 union tree_node;
  83 typedef union tree_node *tree;
  84 typedef const union tree_node *const_tree;
  85 typedef struct gimple_statement_base *gimple;
  86 typedef const struct gimple_statement_base *const_gimple;
  87 typedef gimple gimple_seq;
  88 struct gimple_stmt_iterator;
  89
  90 /* Typedefs for leaf gimple subclasses (for individual gimple codes).
  91    Keep this in the same order as the corresponding codes in gimple.def.  */
  92
  93 struct gimple_statement_cond;
  94 typedef struct gimple_statement_cond *gimple_cond;
  95 typedef const struct gimple_statement_cond *const_gimple_cond;
  96
  97 struct gimple_statement_debug;
  98 typedef struct gimple_statement_debug *gimple_debug;
  99 typedef const struct gimple_statement_debug *const_gimple_debug;
 100
 101 struct gimple_statement_goto;
 102 typedef struct gimple_statement_goto *gimple_goto;
 103 typedef const struct gimple_statement_goto *const_gimple_goto;
 104
 105 struct gimple_statement_label;
 106 typedef struct gimple_statement_label *gimple_label;
 107 typedef const struct gimple_statement_label *const_gimple_label;
 108
 109 struct gimple_statement_switch;
 110 typedef struct gimple_statement_switch *gimple_switch;
 111 typedef const struct gimple_statement_switch *const_gimple_switch;
 112
 113 struct gimple_statement_assign;
 114 typedef struct gimple_statement_assign *gimple_assign;
 115 typedef const struct gimple_statement_assign *const_gimple_assign;
 116
 117 struct gimple_statement_asm;
 118 typedef struct gimple_statement_asm *gimple_asm;
 119 typedef const struct gimple_statement_asm *const_gimple_asm;
 120
 121 struct gimple_statement_call;
 122 typedef struct gimple_statement_call *gimple_call;
 123 typedef const struct gimple_statement_call *const_gimple_call;
 124
 125 struct gimple_statement_transaction;
 126 typedef struct gimple_statement_transaction *gimple_transaction;
 127 typedef const struct gimple_statement_transaction *const_gimple_transaction;
 128
 129 struct gimple_statement_return;
 130 typedef struct gimple_statement_return *gimple_return;
 131 typedef const struct gimple_statement_return *const_gimple_return;
 132
 133 struct gimple_statement_bind;
 134 typedef struct gimple_statement_bind *gimple_bind;
 135 typedef const struct gimple_statement_bind *const_gimple_bind;
 136
 137 struct gimple_statement_catch;
 138 typedef struct gimple_statement_catch *gimple_catch;
 139 typedef const struct gimple_statement_catch *const_gimple_catch;
 140
 141 struct gimple_statement_eh_filter;
 142 typedef struct gimple_statement_eh_filter *gimple_eh_filter;
 143 typedef const struct gimple_statement_eh_filter *const_gimple_eh_filter;
 144
 145 struct gimple_statement_eh_mnt;
 146 typedef struct gimple_statement_eh_mnt *gimple_eh_must_not_throw;
 147 typedef const struct gimple_statement_eh_mnt *const_gimple_eh_must_not_throw;
 148
 149 struct gimple_statement_eh_else;
 150 typedef struct gimple_statement_eh_else *gimple_eh_else;
 151 typedef const struct gimple_statement_eh_else *const_gimple_eh_else;
 152
 153 struct gimple_statement_resx;
 154 typedef struct gimple_statement_resx *gimple_resx;
 155 typedef const struct gimple_statement_resx *const_gimple_resx;
 156
 157 struct gimple_statement_eh_dispatch;
 158 typedef struct gimple_statement_eh_dispatch *gimple_eh_dispatch;
 159 typedef const struct gimple_statement_eh_dispatch *const_gimple_eh_dispatch;
 160
 161 struct gimple_statement_phi;
 162 typedef struct gimple_statement_phi *gimple_phi;
 163 typedef const struct gimple_statement_phi *const_gimple_phi;
 164
 165 union section;
 166 typedef union section section;
 167 struct gcc_options;
 168 struct cl_target_option;
 169 struct cl_optimization;
 170 struct cl_option;
 171 struct cl_decoded_option;
 172 struct cl_option_handlers;
 173 struct diagnostic_context;
 174 struct pretty_printer;
 175
 176 /* Address space number for named address space support.  */
 177 typedef unsigned char addr_space_t;
 178
 179 /* The value of addr_space_t that represents the generic address space.  */
 180 #define ADDR_SPACE_GENERIC 0
 181 #define ADDR_SPACE_GENERIC_P(AS) ((AS) == ADDR_SPACE_GENERIC)
 182
 183 /* The major intermediate representations of GCC.  */
 184 enum ir_type {
 185   IR_GIMPLE,
 186   IR_RTL_CFGRTL,
 187   IR_RTL_CFGLAYOUT
 188 };
 189
 190 /* Provide forward struct declaration so that we don't have to include
 191    all of cpplib.h whenever a random prototype includes a pointer.
 192    Note that the cpp_reader and cpp_token typedefs remain part of
 193    cpplib.h.  */
 194
 195 struct cpp_reader;
 196 struct cpp_token;
 197
 198 /* The thread-local storage model associated with a given VAR_DECL
 199    or SYMBOL_REF.  This isn't used much, but both trees and RTL refer
 200    to it, so it's here.  */
 201 enum tls_model {
 202   TLS_MODEL_NONE,
 203   TLS_MODEL_EMULATED,
 204   TLS_MODEL_REAL,
 205   TLS_MODEL_GLOBAL_DYNAMIC = TLS_MODEL_REAL,
 206   TLS_MODEL_LOCAL_DYNAMIC,
 207   TLS_MODEL_INITIAL_EXEC,
 208   TLS_MODEL_LOCAL_EXEC
 209 };
 210
 211 /* Types of unwind/exception handling info that can be generated.  */
 212
 213 enum unwind_info_type
 214 {
 215   UI_NONE,
 216   UI_SJLJ,
 217   UI_DWARF2,
 218   UI_TARGET,
 219   UI_SEH
 220 };
 221
 222 /* Callgraph node profile representation.  */
 223 enum node_frequency {
 224   /* This function most likely won't be executed at all.
 225      (set only when profile feedback is available or via function attribute). */
 226   NODE_FREQUENCY_UNLIKELY_EXECUTED,
 227   /* For functions that are known to be executed once (i.e. constructors, destructors
 228      and main function.  */
 229   NODE_FREQUENCY_EXECUTED_ONCE,
 230   /* The default value.  */
 231   NODE_FREQUENCY_NORMAL,
 232   /* Optimize this function hard
 233      (set only when profile feedback is available or via function attribute). */
 234   NODE_FREQUENCY_HOT
 235 };
 236
 237 /* Possible initialization status of a variable.   When requested
 238    by the user, this information is tracked and recorded in the DWARF
 239    debug information, along with the variable's location.  */
 240 enum var_init_status
 241 {
 242   VAR_INIT_STATUS_UNKNOWN,
 243   VAR_INIT_STATUS_UNINITIALIZED,
 244   VAR_INIT_STATUS_INITIALIZED
 245 };
 246
 247
 248 struct edge_def;
 249 typedef struct edge_def *edge;
 250 typedef const struct edge_def *const_edge;
 251 struct basic_block_def;
 252 typedef struct basic_block_def *basic_block;
 253 typedef const struct basic_block_def *const_basic_block;
 254
 255 #define obstack_chunk_alloc     ((void *(*) (long)) xmalloc)
 256 #define obstack_chunk_free      ((void (*) (void *)) free)
 257 #define OBSTACK_CHUNK_SIZE      0
 258 #define gcc_obstack_init(OBSTACK)                       \
 259   _obstack_begin ((OBSTACK), OBSTACK_CHUNK_SIZE, 0,     \
 260                   obstack_chunk_alloc,                  \
 261                   obstack_chunk_free)
 262
 263 /* enum reg_class is target specific, so it should not appear in
 264    target-independent code or interfaces, like the target hook declarations
 265    in target.h.  */
 266 typedef int reg_class_t;
 267
 268 class rtl_opt_pass;
 269
 270 namespace gcc {
 271   class context;
 272 }
 273
 274 #else
 275
 276 struct _dont_use_rtx_here_;
 277 struct _dont_use_rtvec_here_;
 278 struct _dont_use_rtx_insn_here_;
 279 union _dont_use_tree_here_;
 280 #define rtx struct _dont_use_rtx_here_ *
 281 #define const_rtx struct _dont_use_rtx_here_ *
 282 #define rtvec struct _dont_use_rtvec_here *
 283 #define const_rtvec struct _dont_use_rtvec_here *
 284 #define rtx_insn struct _dont_use_rtx_insn_here_
 285 #define tree union _dont_use_tree_here_ *
 286 #define const_tree union _dont_use_tree_here_ *
 287
 288 #endif
 289
 290 /* Classes of functions that compiler needs to check
 291    whether they are present at the runtime or not.  */
 292 enum function_class {
 293   function_c94,
 294   function_c99_misc,
 295   function_c99_math_complex,
 296   function_sincos,
 297   function_c11_misc
 298 };
 299
 300 /* Memory model types for the __atomic* builtins.
 301    This must match the order in libstdc++-v3/include/bits/atomic_base.h.  */
 302 enum memmodel
 303 {
 304   MEMMODEL_RELAXED = 0,
 305   MEMMODEL_CONSUME = 1,
 306   MEMMODEL_ACQUIRE = 2,
 307   MEMMODEL_RELEASE = 3,
 308   MEMMODEL_ACQ_REL = 4,
 309   MEMMODEL_SEQ_CST = 5,
 310   MEMMODEL_LAST = 6
 311 };
 312
 313 /* Suppose that higher bits are target dependent. */
 314 #define MEMMODEL_MASK ((1<<16)-1)
 315
 316 /* Support for user-provided GGC and PCH markers.  The first parameter
 317    is a pointer to a pointer, the second a cookie.  */
 318 typedef void (*gt_pointer_operator) (void *, void *);
 319
 320 #if !defined (HAVE_UCHAR)
 321 typedef unsigned char uchar;
 322 #endif
 323
 324 #endif /* coretypes.h */