1 /* GCC core type declarations.
2 Copyright (C) 2002-2017 Free Software Foundation, Inc.
4 This file is part of GCC.
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
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
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.
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/>. */
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.
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. */
37 #ifndef GCC_CORETYPES_H
38 #define GCC_CORETYPES_H
41 #define GTY(x) /* nothing - marker for gengtype */
44 #ifndef USED_FOR_TARGET
46 typedef int64_t gcov_type
;
47 typedef uint64_t gcov_type_unsigned
;
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
;
56 typedef struct rtx_def
*rtx
;
57 typedef const struct rtx_def
*const_rtx
;
59 class scalar_int_mode
;
60 class scalar_float_mode
;
62 template<typename
> class opt_mode
;
63 typedef opt_mode
<scalar_mode
> opt_scalar_mode
;
64 typedef opt_mode
<scalar_int_mode
> opt_scalar_int_mode
;
65 typedef opt_mode
<scalar_float_mode
> opt_scalar_float_mode
;
66 template<typename
> class pod_mode
;
67 typedef pod_mode
<scalar_mode
> scalar_mode_pod
;
68 typedef pod_mode
<scalar_int_mode
> scalar_int_mode_pod
;
70 /* Subclasses of rtx_def, using indentation to show the class
71 hierarchy, along with the relevant invariant.
72 Where possible, keep this list in the same order as in rtl.def. */
74 class rtx_expr_list
; /* GET_CODE (X) == EXPR_LIST */
75 class rtx_insn_list
; /* GET_CODE (X) == INSN_LIST */
76 class rtx_sequence
; /* GET_CODE (X) == SEQUENCE */
78 class rtx_debug_insn
; /* DEBUG_INSN_P (X) */
79 class rtx_nonjump_insn
; /* NONJUMP_INSN_P (X) */
80 class rtx_jump_insn
; /* JUMP_P (X) */
81 class rtx_call_insn
; /* CALL_P (X) */
82 class rtx_jump_table_data
; /* JUMP_TABLE_DATA_P (X) */
83 class rtx_barrier
; /* BARRIER_P (X) */
84 class rtx_code_label
; /* LABEL_P (X) */
85 class rtx_note
; /* NOTE_P (X) */
88 typedef struct rtvec_def
*rtvec
;
89 typedef const struct rtvec_def
*const_rtvec
;
91 typedef struct hwivec_def
*hwivec
;
92 typedef const struct hwivec_def
*const_hwivec
;
94 typedef union tree_node
*tree
;
95 typedef const union tree_node
*const_tree
;
97 typedef gimple
*gimple_seq
;
98 struct gimple_stmt_iterator
;
100 /* Forward decls for leaf gimple subclasses (for individual gimple codes).
101 Keep this in the same order as the corresponding codes in gimple.def. */
122 struct gomp_atomic_load
;
123 struct gomp_atomic_store
;
124 struct gomp_continue
;
125 struct gomp_critical
;
128 struct gomp_parallel
;
130 struct gomp_sections
;
136 typedef union section section
;
138 struct cl_target_option
;
139 struct cl_optimization
;
141 struct cl_decoded_option
;
142 struct cl_option_handlers
;
143 struct diagnostic_context
;
144 struct pretty_printer
;
146 /* Address space number for named address space support. */
147 typedef unsigned char addr_space_t
;
149 /* The value of addr_space_t that represents the generic address space. */
150 #define ADDR_SPACE_GENERIC 0
151 #define ADDR_SPACE_GENERIC_P(AS) ((AS) == ADDR_SPACE_GENERIC)
153 /* The major intermediate representations of GCC. */
160 /* Provide forward struct declaration so that we don't have to include
161 all of cpplib.h whenever a random prototype includes a pointer.
162 Note that the cpp_reader and cpp_token typedefs remain part of
168 /* The thread-local storage model associated with a given VAR_DECL
169 or SYMBOL_REF. This isn't used much, but both trees and RTL refer
170 to it, so it's here. */
175 TLS_MODEL_GLOBAL_DYNAMIC
= TLS_MODEL_REAL
,
176 TLS_MODEL_LOCAL_DYNAMIC
,
177 TLS_MODEL_INITIAL_EXEC
,
181 /* Types of ABI for an offload compiler. */
188 /* Types of profile update methods. */
189 enum profile_update
{
190 PROFILE_UPDATE_SINGLE
,
191 PROFILE_UPDATE_ATOMIC
,
192 PROFILE_UPDATE_PREFER_ATOMIC
195 /* Types of unwind/exception handling info that can be generated. */
197 enum unwind_info_type
206 /* Callgraph node profile representation. */
207 enum node_frequency
{
208 /* This function most likely won't be executed at all.
209 (set only when profile feedback is available or via function attribute). */
210 NODE_FREQUENCY_UNLIKELY_EXECUTED
,
211 /* For functions that are known to be executed once (i.e. constructors, destructors
212 and main function. */
213 NODE_FREQUENCY_EXECUTED_ONCE
,
214 /* The default value. */
215 NODE_FREQUENCY_NORMAL
,
216 /* Optimize this function hard
217 (set only when profile feedback is available or via function attribute). */
221 /* Ways of optimizing code. */
222 enum optimization_type
{
223 /* Prioritize speed over size. */
226 /* Only do things that are good for both size and speed. */
229 /* Prioritize size over speed. */
233 /* Possible initialization status of a variable. When requested
234 by the user, this information is tracked and recorded in the DWARF
235 debug information, along with the variable's location. */
238 VAR_INIT_STATUS_UNKNOWN
,
239 VAR_INIT_STATUS_UNINITIALIZED
,
240 VAR_INIT_STATUS_INITIALIZED
243 /* Names for the different levels of -Wstrict-overflow=N. The numeric
244 values here correspond to N. */
245 enum warn_strict_overflow_code
247 /* Overflow warning that should be issued with -Wall: a questionable
248 construct that is easy to avoid even when using macros. Example:
249 folding (x + CONSTANT > x) to 1. */
250 WARN_STRICT_OVERFLOW_ALL
= 1,
251 /* Overflow warning about folding a comparison to a constant because
252 of undefined signed overflow, other than cases covered by
253 WARN_STRICT_OVERFLOW_ALL. Example: folding (abs (x) >= 0) to 1
254 (this is false when x == INT_MIN). */
255 WARN_STRICT_OVERFLOW_CONDITIONAL
= 2,
256 /* Overflow warning about changes to comparisons other than folding
257 them to a constant. Example: folding (x + 1 > 1) to (x > 0). */
258 WARN_STRICT_OVERFLOW_COMPARISON
= 3,
259 /* Overflow warnings not covered by the above cases. Example:
260 folding ((x * 10) / 5) to (x * 2). */
261 WARN_STRICT_OVERFLOW_MISC
= 4,
262 /* Overflow warnings about reducing magnitude of constants in
263 comparison. Example: folding (x + 2 > y) to (x + 1 >= y). */
264 WARN_STRICT_OVERFLOW_MAGNITUDE
= 5
267 /* The type of an alias set. Code currently assumes that variables of
268 this type can take the values 0 (the alias set which aliases
269 everything) and -1 (sometimes indicating that the alias set is
270 unknown, sometimes indicating a memory barrier) and -2 (indicating
271 that the alias set should be set to a unique value but has not been
273 typedef int alias_set_type
;
276 typedef struct edge_def
*edge
;
277 typedef const struct edge_def
*const_edge
;
278 struct basic_block_def
;
279 typedef struct basic_block_def
*basic_block
;
280 typedef const struct basic_block_def
*const_basic_block
;
282 #if !defined (GENERATOR_FILE)
283 # define OBSTACK_CHUNK_SIZE memory_block_pool::block_size
284 # define obstack_chunk_alloc mempool_obstack_chunk_alloc
285 # define obstack_chunk_free mempool_obstack_chunk_free
287 # define OBSTACK_CHUNK_SIZE 0
288 # define obstack_chunk_alloc xmalloc
289 # define obstack_chunk_free free
292 #define gcc_obstack_init(OBSTACK) \
293 obstack_specify_allocation ((OBSTACK), OBSTACK_CHUNK_SIZE, 0, \
294 obstack_chunk_alloc, \
297 /* enum reg_class is target specific, so it should not appear in
298 target-independent code or interfaces, like the target hook declarations
300 typedef int reg_class_t
;
308 typedef std::pair
<tree
, tree
> tree_pair
;
312 struct _dont_use_rtx_here_
;
313 struct _dont_use_rtvec_here_
;
314 struct _dont_use_rtx_insn_here_
;
315 union _dont_use_tree_here_
;
316 #define rtx struct _dont_use_rtx_here_ *
317 #define const_rtx struct _dont_use_rtx_here_ *
318 #define rtvec struct _dont_use_rtvec_here *
319 #define const_rtvec struct _dont_use_rtvec_here *
320 #define rtx_insn struct _dont_use_rtx_insn_here_
321 #define tree union _dont_use_tree_here_ *
322 #define const_tree union _dont_use_tree_here_ *
324 typedef struct scalar_mode scalar_mode
;
325 typedef struct scalar_int_mode scalar_int_mode
;
326 typedef struct scalar_float_mode scalar_float_mode
;
327 typedef struct complex_mode complex_mode
;
331 /* Classes of functions that compiler needs to check
332 whether they are present at the runtime or not. */
333 enum function_class
{
336 function_c99_math_complex
,
341 /* Enumerate visibility settings. This is deliberately ordered from most
342 to least visibility. */
343 enum symbol_visibility
346 VISIBILITY_PROTECTED
,
351 /* enums used by the targetm.excess_precision hook. */
355 FLT_EVAL_METHOD_UNPREDICTABLE
= -1,
356 FLT_EVAL_METHOD_PROMOTE_TO_FLOAT
= 0,
357 FLT_EVAL_METHOD_PROMOTE_TO_DOUBLE
= 1,
358 FLT_EVAL_METHOD_PROMOTE_TO_LONG_DOUBLE
= 2,
359 FLT_EVAL_METHOD_PROMOTE_TO_FLOAT16
= 16
362 enum excess_precision_type
364 EXCESS_PRECISION_TYPE_IMPLICIT
,
365 EXCESS_PRECISION_TYPE_STANDARD
,
366 EXCESS_PRECISION_TYPE_FAST
369 /* Support for user-provided GGC and PCH markers. The first parameter
370 is a pointer to a pointer, the second a cookie. */
371 typedef void (*gt_pointer_operator
) (void *, void *);
373 #if !defined (HAVE_UCHAR)
374 typedef unsigned char uchar
;
377 /* Most source files will require the following headers. */
378 #if !defined (USED_FOR_TARGET)
379 #include "insn-modes.h"
381 #include "wide-int.h"
382 #include "wide-int-print.h"
383 #include "insn-modes-inline.h"
384 #include "machmode.h"
385 #include "double-int.h"
386 /* Most host source files will require the following headers. */
387 #if !defined (GENERATOR_FILE)
389 #include "fixed-value.h"
390 #include "hash-table.h"
391 #include "hash-set.h"
394 #include "memory-block.h"
395 #include "dumpfile.h"
397 #endif /* GENERATOR_FILE && !USED_FOR_TARGET */
399 #endif /* coretypes.h */