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4977bab6 | 1 | /* GCC core type declarations. |
8d9254fc | 2 | Copyright (C) 2002-2020 Free Software Foundation, Inc. |
4977bab6 ZW |
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 | |
9dcd6f09 | 8 | Software Foundation; either version 3, or (at your option) any later |
4977bab6 ZW |
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 | ||
748086b7 JJ |
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 | |
9dcd6f09 | 23 | <http://www.gnu.org/licenses/>. */ |
4977bab6 ZW |
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 | ||
d1b38208 | 40 | #ifndef GTY |
4977bab6 | 41 | #define GTY(x) /* nothing - marker for gengtype */ |
d1b38208 | 42 | #endif |
4977bab6 ZW |
43 | |
44 | #ifndef USED_FOR_TARGET | |
45 | ||
a9243bfc RB |
46 | typedef int64_t gcov_type; |
47 | typedef uint64_t gcov_type_unsigned; | |
4484a35a | 48 | |
54994253 | 49 | struct bitmap_obstack; |
99b1c316 MS |
50 | class bitmap_head; |
51 | typedef class bitmap_head *bitmap; | |
52 | typedef const class bitmap_head *const_bitmap; | |
7a8cba34 SB |
53 | struct simple_bitmap_def; |
54 | typedef struct simple_bitmap_def *sbitmap; | |
55 | typedef const struct simple_bitmap_def *const_sbitmap; | |
4977bab6 ZW |
56 | struct rtx_def; |
57 | typedef struct rtx_def *rtx; | |
a57193e8 | 58 | typedef const struct rtx_def *const_rtx; |
d21cefc2 | 59 | class scalar_mode; |
501623d4 | 60 | class scalar_int_mode; |
e386a52f | 61 | class scalar_float_mode; |
a97390bf | 62 | class complex_mode; |
b660eccf | 63 | class fixed_size_mode; |
490d0f6c | 64 | template<typename> class opt_mode; |
16d22000 | 65 | typedef opt_mode<scalar_mode> opt_scalar_mode; |
501623d4 | 66 | typedef opt_mode<scalar_int_mode> opt_scalar_int_mode; |
857c7b46 | 67 | typedef opt_mode<scalar_float_mode> opt_scalar_float_mode; |
99b1c316 | 68 | template<typename> struct pod_mode; |
382615c6 | 69 | typedef pod_mode<scalar_mode> scalar_mode_pod; |
bf862c53 | 70 | typedef pod_mode<scalar_int_mode> scalar_int_mode_pod; |
b660eccf | 71 | typedef pod_mode<fixed_size_mode> fixed_size_mode_pod; |
15f8d3ab DM |
72 | |
73 | /* Subclasses of rtx_def, using indentation to show the class | |
6f983e60 | 74 | hierarchy, along with the relevant invariant. |
15f8d3ab | 75 | Where possible, keep this list in the same order as in rtl.def. */ |
99b1c316 MS |
76 | struct rtx_def; |
77 | struct rtx_expr_list; /* GET_CODE (X) == EXPR_LIST */ | |
78 | struct rtx_insn_list; /* GET_CODE (X) == INSN_LIST */ | |
79 | struct rtx_sequence; /* GET_CODE (X) == SEQUENCE */ | |
80 | struct rtx_insn; | |
81 | struct rtx_debug_insn; /* DEBUG_INSN_P (X) */ | |
82 | struct rtx_nonjump_insn; /* NONJUMP_INSN_P (X) */ | |
83 | struct rtx_jump_insn; /* JUMP_P (X) */ | |
84 | struct rtx_call_insn; /* CALL_P (X) */ | |
85 | struct rtx_jump_table_data; /* JUMP_TABLE_DATA_P (X) */ | |
86 | struct rtx_barrier; /* BARRIER_P (X) */ | |
87 | struct rtx_code_label; /* LABEL_P (X) */ | |
88 | struct rtx_note; /* NOTE_P (X) */ | |
15f8d3ab | 89 | |
4977bab6 ZW |
90 | struct rtvec_def; |
91 | typedef struct rtvec_def *rtvec; | |
a57193e8 | 92 | typedef const struct rtvec_def *const_rtvec; |
807e902e KZ |
93 | struct hwivec_def; |
94 | typedef struct hwivec_def *hwivec; | |
95 | typedef const struct hwivec_def *const_hwivec; | |
4977bab6 ZW |
96 | union tree_node; |
97 | typedef union tree_node *tree; | |
7eba871a | 98 | typedef const union tree_node *const_tree; |
355fe088 TS |
99 | struct gimple; |
100 | typedef gimple *gimple_seq; | |
84562394 | 101 | struct gimple_stmt_iterator; |
538dd0b7 DM |
102 | |
103 | /* Forward decls for leaf gimple subclasses (for individual gimple codes). | |
104 | Keep this in the same order as the corresponding codes in gimple.def. */ | |
105 | ||
106 | struct gcond; | |
107 | struct gdebug; | |
108 | struct ggoto; | |
109 | struct glabel; | |
110 | struct gswitch; | |
111 | struct gassign; | |
112 | struct gasm; | |
113 | struct gcall; | |
114 | struct gtransaction; | |
115 | struct greturn; | |
116 | struct gbind; | |
117 | struct gcatch; | |
118 | struct geh_filter; | |
119 | struct geh_mnt; | |
120 | struct geh_else; | |
121 | struct gresx; | |
122 | struct geh_dispatch; | |
123 | struct gphi; | |
124 | struct gtry; | |
125 | struct gomp_atomic_load; | |
126 | struct gomp_atomic_store; | |
127 | struct gomp_continue; | |
128 | struct gomp_critical; | |
d9a6bd32 | 129 | struct gomp_ordered; |
538dd0b7 DM |
130 | struct gomp_for; |
131 | struct gomp_parallel; | |
132 | struct gomp_task; | |
133 | struct gomp_sections; | |
134 | struct gomp_single; | |
135 | struct gomp_target; | |
136 | struct gomp_teams; | |
137 | ||
4df3629e DM |
138 | /* Subclasses of symtab_node, using indentation to show the class |
139 | hierarchy. */ | |
140 | ||
99b1c316 | 141 | struct symtab_node; |
4df3629e | 142 | struct cgraph_node; |
99b1c316 | 143 | struct varpool_node; |
ff6686d2 | 144 | struct cgraph_edge; |
4df3629e | 145 | |
d6b5193b RS |
146 | union section; |
147 | typedef union section section; | |
46625112 | 148 | struct gcc_options; |
ab442df7 MM |
149 | struct cl_target_option; |
150 | struct cl_optimization; | |
7a9bf9a4 JM |
151 | struct cl_option; |
152 | struct cl_decoded_option; | |
5f20c657 | 153 | struct cl_option_handlers; |
1ebe4b4f | 154 | struct diagnostic_context; |
99b1c316 | 155 | class pretty_printer; |
4bc1899b | 156 | class diagnostic_event_id_t; |
4977bab6 | 157 | |
148909bc RS |
158 | template<typename T> struct array_traits; |
159 | ||
160 | /* Provides a read-only bitmap view of a single integer bitmask or an | |
161 | array of integer bitmasks, or of a wrapper around such bitmasks. */ | |
162 | template<typename T, typename Traits = array_traits<T>, | |
163 | bool has_constant_size = Traits::has_constant_size> | |
164 | class bitmap_view; | |
165 | ||
09e881c9 BE |
166 | /* Address space number for named address space support. */ |
167 | typedef unsigned char addr_space_t; | |
168 | ||
169 | /* The value of addr_space_t that represents the generic address space. */ | |
170 | #define ADDR_SPACE_GENERIC 0 | |
171 | #define ADDR_SPACE_GENERIC_P(AS) ((AS) == ADDR_SPACE_GENERIC) | |
172 | ||
52bca999 SB |
173 | /* The major intermediate representations of GCC. */ |
174 | enum ir_type { | |
175 | IR_GIMPLE, | |
176 | IR_RTL_CFGRTL, | |
177 | IR_RTL_CFGLAYOUT | |
178 | }; | |
179 | ||
e150159c SS |
180 | /* Provide forward struct declaration so that we don't have to include |
181 | all of cpplib.h whenever a random prototype includes a pointer. | |
5950c3c9 BE |
182 | Note that the cpp_reader and cpp_token typedefs remain part of |
183 | cpplib.h. */ | |
e150159c SS |
184 | |
185 | struct cpp_reader; | |
5950c3c9 | 186 | struct cpp_token; |
e150159c | 187 | |
61b60ed0 ZW |
188 | /* The thread-local storage model associated with a given VAR_DECL |
189 | or SYMBOL_REF. This isn't used much, but both trees and RTL refer | |
190 | to it, so it's here. */ | |
191 | enum tls_model { | |
c2f7fa15 | 192 | TLS_MODEL_NONE, |
feb60f03 NS |
193 | TLS_MODEL_EMULATED, |
194 | TLS_MODEL_REAL, | |
195 | TLS_MODEL_GLOBAL_DYNAMIC = TLS_MODEL_REAL, | |
61b60ed0 ZW |
196 | TLS_MODEL_LOCAL_DYNAMIC, |
197 | TLS_MODEL_INITIAL_EXEC, | |
198 | TLS_MODEL_LOCAL_EXEC | |
199 | }; | |
200 | ||
c713ddc0 BS |
201 | /* Types of ABI for an offload compiler. */ |
202 | enum offload_abi { | |
203 | OFFLOAD_ABI_UNSET, | |
204 | OFFLOAD_ABI_LP64, | |
205 | OFFLOAD_ABI_ILP32 | |
206 | }; | |
207 | ||
22063dbc ML |
208 | /* Types of profile update methods. */ |
209 | enum profile_update { | |
210 | PROFILE_UPDATE_SINGLE, | |
4d209853 ML |
211 | PROFILE_UPDATE_ATOMIC, |
212 | PROFILE_UPDATE_PREFER_ATOMIC | |
22063dbc ML |
213 | }; |
214 | ||
ea0b1252 ML |
215 | /* Type of profile reproducibility methods. */ |
216 | enum profile_reproducibility { | |
217 | PROFILE_REPRODUCIBILITY_SERIAL, | |
218 | PROFILE_REPRODUCIBILITY_PARALLEL_RUNS, | |
219 | PROFILE_REPRODUCIBILITY_MULTITHREADED | |
220 | }; | |
221 | ||
6ba74c2d RH |
222 | /* Types of unwind/exception handling info that can be generated. */ |
223 | ||
224 | enum unwind_info_type | |
225 | { | |
226 | UI_NONE, | |
227 | UI_SJLJ, | |
228 | UI_DWARF2, | |
bf1431e3 TG |
229 | UI_TARGET, |
230 | UI_SEH | |
6ba74c2d RH |
231 | }; |
232 | ||
f16d3f39 JH |
233 | /* Callgraph node profile representation. */ |
234 | enum node_frequency { | |
235 | /* This function most likely won't be executed at all. | |
236 | (set only when profile feedback is available or via function attribute). */ | |
237 | NODE_FREQUENCY_UNLIKELY_EXECUTED, | |
238 | /* For functions that are known to be executed once (i.e. constructors, destructors | |
239 | and main function. */ | |
240 | NODE_FREQUENCY_EXECUTED_ONCE, | |
241 | /* The default value. */ | |
242 | NODE_FREQUENCY_NORMAL, | |
243 | /* Optimize this function hard | |
244 | (set only when profile feedback is available or via function attribute). */ | |
245 | NODE_FREQUENCY_HOT | |
246 | }; | |
247 | ||
d95ab70a RS |
248 | /* Ways of optimizing code. */ |
249 | enum optimization_type { | |
250 | /* Prioritize speed over size. */ | |
251 | OPTIMIZE_FOR_SPEED, | |
252 | ||
253 | /* Only do things that are good for both size and speed. */ | |
254 | OPTIMIZE_FOR_BOTH, | |
255 | ||
256 | /* Prioritize size over speed. */ | |
257 | OPTIMIZE_FOR_SIZE | |
258 | }; | |
259 | ||
76b0cbf8 RS |
260 | /* Enumerates a padding direction. */ |
261 | enum pad_direction { | |
262 | /* No padding is required. */ | |
263 | PAD_NONE, | |
264 | ||
265 | /* Insert padding above the data, i.e. at higher memeory addresses | |
266 | when dealing with memory, and at the most significant end when | |
267 | dealing with registers. */ | |
268 | PAD_UPWARD, | |
269 | ||
270 | /* Insert padding below the data, i.e. at lower memeory addresses | |
271 | when dealing with memory, and at the least significant end when | |
272 | dealing with registers. */ | |
273 | PAD_DOWNWARD | |
274 | }; | |
275 | ||
647a1567 RH |
276 | /* Possible initialization status of a variable. When requested |
277 | by the user, this information is tracked and recorded in the DWARF | |
278 | debug information, along with the variable's location. */ | |
279 | enum var_init_status | |
280 | { | |
281 | VAR_INIT_STATUS_UNKNOWN, | |
282 | VAR_INIT_STATUS_UNINITIALIZED, | |
283 | VAR_INIT_STATUS_INITIALIZED | |
284 | }; | |
285 | ||
a8b85ce9 MG |
286 | /* Names for the different levels of -Wstrict-overflow=N. The numeric |
287 | values here correspond to N. */ | |
288 | enum warn_strict_overflow_code | |
289 | { | |
290 | /* Overflow warning that should be issued with -Wall: a questionable | |
291 | construct that is easy to avoid even when using macros. Example: | |
292 | folding (x + CONSTANT > x) to 1. */ | |
293 | WARN_STRICT_OVERFLOW_ALL = 1, | |
294 | /* Overflow warning about folding a comparison to a constant because | |
295 | of undefined signed overflow, other than cases covered by | |
296 | WARN_STRICT_OVERFLOW_ALL. Example: folding (abs (x) >= 0) to 1 | |
297 | (this is false when x == INT_MIN). */ | |
298 | WARN_STRICT_OVERFLOW_CONDITIONAL = 2, | |
299 | /* Overflow warning about changes to comparisons other than folding | |
300 | them to a constant. Example: folding (x + 1 > 1) to (x > 0). */ | |
301 | WARN_STRICT_OVERFLOW_COMPARISON = 3, | |
302 | /* Overflow warnings not covered by the above cases. Example: | |
303 | folding ((x * 10) / 5) to (x * 2). */ | |
304 | WARN_STRICT_OVERFLOW_MISC = 4, | |
305 | /* Overflow warnings about reducing magnitude of constants in | |
306 | comparison. Example: folding (x + 2 > y) to (x + 1 >= y). */ | |
307 | WARN_STRICT_OVERFLOW_MAGNITUDE = 5 | |
308 | }; | |
309 | ||
eee33510 AM |
310 | /* The type of an alias set. Code currently assumes that variables of |
311 | this type can take the values 0 (the alias set which aliases | |
312 | everything) and -1 (sometimes indicating that the alias set is | |
313 | unknown, sometimes indicating a memory barrier) and -2 (indicating | |
314 | that the alias set should be set to a unique value but has not been | |
315 | set yet). */ | |
316 | typedef int alias_set_type; | |
f16d3f39 | 317 | |
99b1c316 MS |
318 | class edge_def; |
319 | typedef class edge_def *edge; | |
320 | typedef const class edge_def *const_edge; | |
a3710436 JH |
321 | struct basic_block_def; |
322 | typedef struct basic_block_def *basic_block; | |
323 | typedef const struct basic_block_def *const_basic_block; | |
10692477 | 324 | |
fcb87c50 MM |
325 | #if !defined (GENERATOR_FILE) |
326 | # define OBSTACK_CHUNK_SIZE memory_block_pool::block_size | |
327 | # define obstack_chunk_alloc mempool_obstack_chunk_alloc | |
328 | # define obstack_chunk_free mempool_obstack_chunk_free | |
329 | #else | |
330 | # define OBSTACK_CHUNK_SIZE 0 | |
331 | # define obstack_chunk_alloc xmalloc | |
332 | # define obstack_chunk_free free | |
333 | #endif | |
334 | ||
19a9ba64 AM |
335 | #define gcc_obstack_init(OBSTACK) \ |
336 | obstack_specify_allocation ((OBSTACK), OBSTACK_CHUNK_SIZE, 0, \ | |
337 | obstack_chunk_alloc, \ | |
338 | obstack_chunk_free) | |
10692477 | 339 | |
a87cf97e JR |
340 | /* enum reg_class is target specific, so it should not appear in |
341 | target-independent code or interfaces, like the target hook declarations | |
342 | in target.h. */ | |
343 | typedef int reg_class_t; | |
344 | ||
05555c4a DM |
345 | class rtl_opt_pass; |
346 | ||
347 | namespace gcc { | |
348 | class context; | |
349 | } | |
350 | ||
ab23f5d9 | 351 | typedef std::pair <tree, tree> tree_pair; |
ac2cfa6c | 352 | typedef std::pair <const char *, int> string_int_pair; |
ab23f5d9 | 353 | |
4a4412b9 DM |
354 | /* Define a name->value mapping. */ |
355 | template <typename ValueType> | |
356 | struct kv_pair | |
357 | { | |
358 | const char *const name; /* the name of the value */ | |
359 | const ValueType value; /* the value of the name */ | |
360 | }; | |
361 | ||
4977bab6 ZW |
362 | #else |
363 | ||
364 | struct _dont_use_rtx_here_; | |
365 | struct _dont_use_rtvec_here_; | |
f3955ea3 | 366 | struct _dont_use_rtx_insn_here_; |
4977bab6 ZW |
367 | union _dont_use_tree_here_; |
368 | #define rtx struct _dont_use_rtx_here_ * | |
a57193e8 | 369 | #define const_rtx struct _dont_use_rtx_here_ * |
4977bab6 | 370 | #define rtvec struct _dont_use_rtvec_here * |
a57193e8 | 371 | #define const_rtvec struct _dont_use_rtvec_here * |
f3955ea3 | 372 | #define rtx_insn struct _dont_use_rtx_insn_here_ |
4977bab6 | 373 | #define tree union _dont_use_tree_here_ * |
a57193e8 | 374 | #define const_tree union _dont_use_tree_here_ * |
4977bab6 | 375 | |
d21cefc2 | 376 | typedef struct scalar_mode scalar_mode; |
501623d4 | 377 | typedef struct scalar_int_mode scalar_int_mode; |
e386a52f | 378 | typedef struct scalar_float_mode scalar_float_mode; |
a97390bf | 379 | typedef struct complex_mode complex_mode; |
e386a52f | 380 | |
4977bab6 ZW |
381 | #endif |
382 | ||
d33d9e47 AI |
383 | /* Classes of functions that compiler needs to check |
384 | whether they are present at the runtime or not. */ | |
385 | enum function_class { | |
386 | function_c94, | |
387 | function_c99_misc, | |
388 | function_c99_math_complex, | |
22869a37 | 389 | function_sincos, |
0fa00483 JM |
390 | function_c11_misc, |
391 | function_c2x_misc | |
d33d9e47 AI |
392 | }; |
393 | ||
2eff1470 AM |
394 | /* Enumerate visibility settings. This is deliberately ordered from most |
395 | to least visibility. */ | |
396 | enum symbol_visibility | |
397 | { | |
398 | VISIBILITY_DEFAULT, | |
399 | VISIBILITY_PROTECTED, | |
400 | VISIBILITY_HIDDEN, | |
401 | VISIBILITY_INTERNAL | |
402 | }; | |
403 | ||
42e02b20 JG |
404 | /* enums used by the targetm.excess_precision hook. */ |
405 | ||
406 | enum flt_eval_method | |
407 | { | |
408 | FLT_EVAL_METHOD_UNPREDICTABLE = -1, | |
409 | FLT_EVAL_METHOD_PROMOTE_TO_FLOAT = 0, | |
410 | FLT_EVAL_METHOD_PROMOTE_TO_DOUBLE = 1, | |
411 | FLT_EVAL_METHOD_PROMOTE_TO_LONG_DOUBLE = 2, | |
412 | FLT_EVAL_METHOD_PROMOTE_TO_FLOAT16 = 16 | |
413 | }; | |
414 | ||
415 | enum excess_precision_type | |
416 | { | |
417 | EXCESS_PRECISION_TYPE_IMPLICIT, | |
418 | EXCESS_PRECISION_TYPE_STANDARD, | |
419 | EXCESS_PRECISION_TYPE_FAST | |
420 | }; | |
421 | ||
0823efed DN |
422 | /* Support for user-provided GGC and PCH markers. The first parameter |
423 | is a pointer to a pointer, the second a cookie. */ | |
424 | typedef void (*gt_pointer_operator) (void *, void *); | |
425 | ||
9771b263 DN |
426 | #if !defined (HAVE_UCHAR) |
427 | typedef unsigned char uchar; | |
428 | #endif | |
4977bab6 | 429 | |
b0e84cf7 RS |
430 | /* Most source files will require the following headers. */ |
431 | #if !defined (USED_FOR_TARGET) | |
432 | #include "insn-modes.h" | |
ecb9f223 AM |
433 | #include "signop.h" |
434 | #include "wide-int.h" | |
b0e84cf7 | 435 | #include "wide-int-print.h" |
e535b963 RS |
436 | |
437 | /* On targets that don't need polynomial offsets, target-specific code | |
438 | should be able to treat poly_int like a normal constant, with a | |
439 | conversion operator going from the former to the latter. We also | |
440 | allow this for gencondmd.c for all targets, so that we can treat | |
441 | machine_modes as enums without causing build failures. */ | |
442 | #if (defined (IN_TARGET_CODE) \ | |
443 | && (defined (USE_ENUM_MODES) || NUM_POLY_INT_COEFFS == 1)) | |
444 | #define POLY_INT_CONVERSION 1 | |
445 | #else | |
446 | #define POLY_INT_CONVERSION 0 | |
447 | #endif | |
448 | ||
449 | #include "poly-int.h" | |
450 | #include "poly-int-types.h" | |
b0e84cf7 RS |
451 | #include "insn-modes-inline.h" |
452 | #include "machmode.h" | |
ecb9f223 | 453 | #include "double-int.h" |
e6de5335 | 454 | #include "align.h" |
b0e84cf7 RS |
455 | /* Most host source files will require the following headers. */ |
456 | #if !defined (GENERATOR_FILE) | |
ecb9f223 AM |
457 | #include "real.h" |
458 | #include "fixed-value.h" | |
13fdf2e2 AM |
459 | #include "hash-table.h" |
460 | #include "hash-set.h" | |
abb226c9 AM |
461 | #include "input.h" |
462 | #include "is-a.h" | |
fcb87c50 | 463 | #include "memory-block.h" |
1a817418 | 464 | #include "dumpfile.h" |
b0e84cf7 | 465 | #endif |
13fdf2e2 | 466 | #endif /* GENERATOR_FILE && !USED_FOR_TARGET */ |
ecb9f223 | 467 | |
9771b263 | 468 | #endif /* coretypes.h */ |