1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
|
/* General-purpose hooks.
Copyright (C) 2002-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3, or (at your option) any
later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>.
In other words, you are welcome to use, share and improve this program.
You are forbidden to forbid anyone else to use, share and improve
what you give them. Help stamp out software-hoarding! */
/* This file contains generic hooks that can be used as defaults for
target or language-dependent hook initializers. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "hooks.h"
/* Generic hook that does absolutely zappo. */
void
hook_void_void (void)
{
}
/* Generic hook that takes no arguments and returns false. */
bool
hook_bool_void_false (void)
{
return false;
}
/* Generic hook that takes no arguments and returns true. */
bool
hook_bool_void_true (void)
{
return true;
}
/* Generic hook that takes (bool) and returns false. */
bool
hook_bool_bool_false (bool)
{
return false;
}
/* Generic hook that takes (bool, struct gcc_options *) and returns false. */
bool
hook_bool_bool_gcc_optionsp_false (bool, struct gcc_options *)
{
return false;
}
/* Generic hook that takes const int, const int) and returns true. */
bool hook_bool_const_int_const_int_true (const int, const int)
{
return true;
}
/* Generic hook that takes (machine_mode) and returns false. */
bool
hook_bool_mode_false (machine_mode)
{
return false;
}
/* Generic hook that takes (machine_mode) and returns true. */
bool
hook_bool_mode_true (machine_mode)
{
return true;
}
/* Generic hook that takes (machine_mode, machine_mode) and returns true. */
bool
hook_bool_mode_mode_true (machine_mode, machine_mode)
{
return true;
}
/* Generic hook that takes (machine_mode, const_rtx) and returns false. */
bool
hook_bool_mode_const_rtx_false (machine_mode, const_rtx)
{
return false;
}
/* Generic hook that takes (machine_mode, const_rtx) and returns true. */
bool
hook_bool_mode_const_rtx_true (machine_mode, const_rtx)
{
return true;
}
/* Generic hook that takes (machine_mode, rtx) and returns false. */
bool
hook_bool_mode_rtx_false (machine_mode, rtx)
{
return false;
}
/* Generic hook that takes (machine_mode, rtx) and returns true. */
bool
hook_bool_mode_rtx_true (machine_mode, rtx)
{
return true;
}
/* Generic hook that takes (const rtx_insn *, const rtx_insn *) and returns true. */
bool
hook_bool_const_rtx_insn_const_rtx_insn_true (const rtx_insn *,
const rtx_insn *)
{
return true;
}
/* Generic hook that takes (machine_mode, unsigned HOST_WIDE_INT)
and returns false. */
bool
hook_bool_mode_uhwi_false (machine_mode, unsigned HOST_WIDE_INT)
{
return false;
}
/* Generic hook that takes (poly_uint64, poly_uint64) and returns true. */
bool
hook_bool_puint64_puint64_true (poly_uint64, poly_uint64)
{
return true;
}
bool
hook_bool_uint_uint_mode_false (unsigned int, unsigned int, machine_mode)
{
return false;
}
/* Generic hook that takes (unsigned int, machine_mode) and returns true. */
bool
hook_bool_uint_mode_true (unsigned int, machine_mode)
{
return true;
}
/* Generic hook that takes (FILE *, const char *) and does nothing. */
void
hook_void_FILEptr_constcharptr (FILE *, const char *)
{
}
/* Generic hook that takes (FILE *, const char *, constr_tree *) and does
nothing. */
void
hook_void_FILEptr_constcharptr_const_tree (FILE *, const char *, const_tree)
{
}
/* Generic hook that takes (FILE *, rtx) and returns false. */
bool
hook_bool_FILEptr_rtx_false (FILE *, rtx)
{
return false;
}
/* Generic hook that takes (gimple_stmt_iterator *) and returns
false. */
bool
hook_bool_gsiptr_false (gimple_stmt_iterator *)
{
return false;
}
/* Used for the TARGET_ASM_CAN_OUTPUT_MI_THUNK hook. */
bool
hook_bool_const_tree_hwi_hwi_const_tree_false (const_tree, HOST_WIDE_INT,
HOST_WIDE_INT, const_tree)
{
return false;
}
bool
hook_bool_const_tree_hwi_hwi_const_tree_true (const_tree, HOST_WIDE_INT,
HOST_WIDE_INT, const_tree)
{
return true;
}
bool
default_can_output_mi_thunk_no_vcall (const_tree, HOST_WIDE_INT,
HOST_WIDE_INT c, const_tree)
{
return c == 0;
}
int
hook_int_uint_mode_1 (unsigned int, machine_mode)
{
return 1;
}
int
hook_int_const_tree_0 (const_tree)
{
return 0;
}
/* ??? Used for comp_type_attributes, which ought to return bool. */
int
hook_int_const_tree_const_tree_1 (const_tree, const_tree)
{
return 1;
}
int
hook_int_rtx_0 (rtx)
{
return 0;
}
int
hook_int_rtx_1 (rtx)
{
return 1;
}
int
hook_int_rtx_insn_0 (rtx_insn *)
{
return 0;
}
int
hook_int_rtx_insn_unreachable (rtx_insn *)
{
gcc_unreachable ();
}
int
hook_int_rtx_bool_0 (rtx, bool)
{
return 0;
}
int
hook_int_rtx_mode_as_bool_0 (rtx, machine_mode, addr_space_t, bool)
{
return 0;
}
unsigned int
hook_uint_void_0 (void)
{
return 0;
}
HOST_WIDE_INT
hook_hwi_void_0 (void)
{
return 0;
}
void
hook_void_tree (tree)
{
}
void
hook_void_FILEptr_tree (FILE *, tree)
{
}
void
hook_void_rtx_tree (rtx, tree)
{
}
void
hook_void_constcharptr (const char *)
{
}
void
hook_void_tree_treeptr (tree, tree *)
{
}
void
hook_void_int_int (int, int)
{
}
bool
hook_bool_tree_false (tree)
{
return false;
}
bool
hook_bool_const_tree_false (const_tree)
{
return false;
}
bool
hook_bool_const_tree_const_tree_true (const_tree, const_tree)
{
return true;
}
bool
hook_bool_tree_true (tree)
{
return true;
}
bool
hook_bool_const_tree_true (const_tree)
{
return true;
}
bool
hook_bool_tree_tree_false (tree, tree)
{
return false;
}
bool
hook_bool_tree_tree_true (tree, tree)
{
return true;
}
bool
hook_bool_tree_bool_false (tree, bool)
{
return false;
}
bool
hook_bool_rtx_insn_true (rtx_insn *)
{
return true;
}
bool
hook_bool_rtx_false (rtx)
{
return false;
}
bool
hook_bool_uintp_uintp_false (unsigned int *, unsigned int *)
{
return false;
}
bool
hook_bool_rtx_mode_int_int_intp_bool_false (rtx, machine_mode, int, int,
int *, bool)
{
return false;
}
bool
hook_bool_wint_wint_uint_bool_true (const widest_int &, const widest_int &,
unsigned int, bool)
{
return true;
}
/* Generic hook that takes an rtx and returns it. */
rtx
hook_rtx_rtx_identity (rtx x)
{
return x;
}
/* Generic hook that takes an rtx and returns NULL_RTX. */
rtx
hook_rtx_rtx_null (rtx)
{
return NULL;
}
/* Generic hook that takes a tree and an int and returns NULL_RTX. */
rtx
hook_rtx_tree_int_null (tree, int)
{
return NULL;
}
/* Generic hook that takes a machine mode and returns an unsigned int 0. */
unsigned int
hook_uint_mode_0 (machine_mode)
{
return 0;
}
/* Generic hook that takes no arguments and returns a NULL const string. */
const char *
hook_constcharptr_void_null (void)
{
return NULL;
}
/* Generic hook that takes no arguments and returns a NULL string. */
char *
hook_charptr_void_null (void)
{
return NULL;
}
/* Generic hook that takes a tree and returns a NULL string. */
const char *
hook_constcharptr_const_tree_null (const_tree)
{
return NULL;
}
tree
hook_tree_tree_int_treep_bool_null (tree, int, tree *, bool)
{
return NULL;
}
tree
hook_tree_tree_bool_null (tree, bool)
{
return NULL;
}
tree
hook_tree_tree_tree_null (tree, tree)
{
return NULL;
}
tree
hook_tree_tree_tree_tree_null (tree, tree, tree)
{
return NULL;
}
tree
hook_tree_treeptr_tree_tree_int_boolptr_null (tree *, tree, tree, int, bool *)
{
return NULL;
}
/* Generic hook that takes an rtx_insn *and returns a NULL string. */
const char *
hook_constcharptr_const_rtx_insn_null (const rtx_insn *)
{
return NULL;
}
const char *
hook_constcharptr_const_tree_const_tree_null (const_tree, const_tree)
{
return NULL;
}
const char *
hook_constcharptr_int_const_tree_null (int, const_tree)
{
return NULL;
}
const char *
hook_constcharptr_int_const_tree_const_tree_null (int, const_tree, const_tree)
{
return NULL;
}
/* Generic hook that takes a const_tree and returns NULL_TREE. */
tree
hook_tree_const_tree_null (const_tree)
{
return NULL;
}
/* Generic hook that takes no arguments and returns a NULL_TREE. */
tree
hook_tree_void_null (void)
{
return NULL;
}
/* Generic hook that takes a rtx_insn * and an int and returns a bool. */
bool
hook_bool_rtx_insn_int_false (rtx_insn *, int)
{
return false;
}
/* Generic hook that takes a rtx_insn * and an int and returns void. */
void
hook_void_rtx_insn_int (rtx_insn *, int)
{
}
/* Generic hook that takes a struct gcc_options * and returns void. */
void
hook_void_gcc_optionsp (struct gcc_options *)
{
}
/* Generic hook that takes an unsigned int, an unsigned int pointer and
returns false. */
bool
hook_bool_uint_uintp_false (unsigned int, unsigned int *)
{
return false;
}
/* Generic hook that takes a register class and returns false. */
bool
hook_bool_reg_class_t_false (reg_class_t regclass ATTRIBUTE_UNUSED)
{
return false;
}
/* Generic hook that takes 2 machine_modes and a register class and
returns true. */
bool
hook_bool_mode_mode_reg_class_t_true (machine_mode, machine_mode, reg_class_t)
{
return true;
}
/* Generic hook that takes a machine_mode and 2 register classes
and returns false. */
bool
hook_bool_mode_reg_class_t_reg_class_t_false (machine_mode, reg_class_t,
reg_class_t)
{
return false;
}
/* Generic hook that takes a mode and an unsigned HOST_WIDE_INT and
returns no mode. */
opt_machine_mode
hook_optmode_mode_uhwi_none (machine_mode, unsigned HOST_WIDE_INT)
{
return opt_machine_mode ();
}
|