mirrored from git://gcc.gnu.org/git/gcc.git
-
Notifications
You must be signed in to change notification settings - Fork 4.4k
/
save-restore.S
535 lines (498 loc) · 11 KB
/
save-restore.S
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
/* Callee-saved register spill and fill routines for RISC-V.
Copyright (C) 2016-2024 Free Software Foundation, Inc.
This file is part of GCC.
GCC 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.
GCC 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.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "riscv-asm.h"
.text
#if __riscv_xlen == 64
FUNC_BEGIN (__riscv_save_12)
.cfi_startproc
# __riscv_save_* routine use t0/x5 as return address
.cfi_return_column 5
addi sp, sp, -112
.cfi_def_cfa_offset 112
li t1, 0
sd s11, 8(sp)
.cfi_offset 27, -104
j .Ls10
FUNC_BEGIN (__riscv_save_11)
FUNC_BEGIN (__riscv_save_10)
.cfi_restore 27
addi sp, sp, -112
.cfi_def_cfa_offset 112
li t1, 1
.Ls10:
sd s10, 16(sp)
.cfi_offset 26, -96
sd s9, 24(sp)
.cfi_offset 25, -88
j .Ls8
FUNC_BEGIN (__riscv_save_9)
FUNC_BEGIN (__riscv_save_8)
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
addi sp, sp, -112
.cfi_def_cfa_offset 112
li t1, 2
.Ls8:
sd s8, 32(sp)
.cfi_offset 24, -80
sd s7, 40(sp)
.cfi_offset 23, -72
j .Ls6
FUNC_BEGIN (__riscv_save_7)
FUNC_BEGIN (__riscv_save_6)
.cfi_restore 23
.cfi_restore 24
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
addi sp, sp, -112
.cfi_def_cfa_offset 112
li t1, 3
.Ls6:
sd s6, 48(sp)
.cfi_offset 22, -64
sd s5, 56(sp)
.cfi_offset 21, -56
j .Ls4
FUNC_BEGIN (__riscv_save_5)
FUNC_BEGIN (__riscv_save_4)
.cfi_restore 21
.cfi_restore 22
.cfi_restore 24
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
.cfi_restore 24
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
addi sp, sp, -112
.cfi_def_cfa_offset 112
li t1, 4
.Ls4:
sd s4, 64(sp)
.cfi_offset 20, -48
sd s3, 72(sp)
.cfi_offset 19, -40
j .Ls2
FUNC_BEGIN (__riscv_save_3)
FUNC_BEGIN (__riscv_save_2)
.cfi_restore 19
.cfi_restore 20
.cfi_restore 21
.cfi_restore 22
.cfi_restore 24
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
.cfi_restore 24
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
addi sp, sp, -112
.cfi_def_cfa_offset 112
li t1, 5
.Ls2:
sd s2, 80(sp)
.cfi_offset 18, -32
sd s1, 88(sp)
.cfi_offset 9, -24
sd s0, 96(sp)
.cfi_offset 8, -16
sd ra, 104(sp)
.cfi_offset 1, -8
slli t1, t1, 4
# CFA info is not correct in next 2 instruction since t1's
# value is depend on how may register really save.
add sp, sp, t1
jr t0
.cfi_endproc
FUNC_END (__riscv_save_12)
FUNC_END (__riscv_save_11)
FUNC_END (__riscv_save_10)
FUNC_END (__riscv_save_9)
FUNC_END (__riscv_save_8)
FUNC_END (__riscv_save_7)
FUNC_END (__riscv_save_6)
FUNC_END (__riscv_save_5)
FUNC_END (__riscv_save_4)
FUNC_END (__riscv_save_3)
FUNC_END (__riscv_save_2)
FUNC_BEGIN (__riscv_save_1)
FUNC_BEGIN (__riscv_save_0)
.cfi_startproc
# __riscv_save_* routine use t0/x5 as return address
.cfi_return_column 5
addi sp, sp, -16
.cfi_def_cfa_offset 16
sd s0, 0(sp)
.cfi_offset 8, -16
sd ra, 8(sp)
.cfi_offset 1, -8
jr t0
.cfi_endproc
FUNC_END (__riscv_save_1)
FUNC_END (__riscv_save_0)
FUNC_BEGIN (__riscv_restore_12)
.cfi_startproc
.cfi_def_cfa_offset 112
.cfi_offset 27, -104
.cfi_offset 26, -96
.cfi_offset 25, -88
.cfi_offset 24, -80
.cfi_offset 23, -72
.cfi_offset 22, -64
.cfi_offset 21, -56
.cfi_offset 20, -48
.cfi_offset 19, -40
.cfi_offset 18, -32
.cfi_offset 9, -24
.cfi_offset 8, -16
.cfi_offset 1, -8
ld s11, 8(sp)
.cfi_restore 27
addi sp, sp, 16
FUNC_BEGIN (__riscv_restore_11)
FUNC_BEGIN (__riscv_restore_10)
.cfi_restore 27
.cfi_def_cfa_offset 96
ld s10, 0(sp)
.cfi_restore 26
ld s9, 8(sp)
.cfi_restore 25
addi sp, sp, 16
FUNC_BEGIN (__riscv_restore_9)
FUNC_BEGIN (__riscv_restore_8)
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
.cfi_def_cfa_offset 80
ld s8, 0(sp)
.cfi_restore 24
ld s7, 8(sp)
.cfi_restore 23
addi sp, sp, 16
FUNC_BEGIN (__riscv_restore_7)
FUNC_BEGIN (__riscv_restore_6)
.cfi_restore 23
.cfi_restore 24
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
.cfi_def_cfa_offset 64
ld s6, 0(sp)
.cfi_restore 22
ld s5, 8(sp)
.cfi_restore 21
addi sp, sp, 16
FUNC_BEGIN (__riscv_restore_5)
FUNC_BEGIN (__riscv_restore_4)
.cfi_restore 21
.cfi_restore 22
.cfi_restore 23
.cfi_restore 24
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
.cfi_def_cfa_offset 48
ld s4, 0(sp)
.cfi_restore 20
ld s3, 8(sp)
.cfi_restore 19
addi sp, sp, 16
FUNC_BEGIN (__riscv_restore_3)
FUNC_BEGIN (__riscv_restore_2)
.cfi_restore 19
.cfi_restore 20
.cfi_restore 21
.cfi_restore 22
.cfi_restore 23
.cfi_restore 24
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
.cfi_def_cfa_offset 32
ld s2, 0(sp)
.cfi_restore 18
ld s1, 8(sp)
.cfi_restore 9
addi sp, sp, 16
FUNC_BEGIN (__riscv_restore_1)
FUNC_BEGIN (__riscv_restore_0)
.cfi_restore 9
.cfi_restore 18
.cfi_restore 19
.cfi_restore 20
.cfi_restore 21
.cfi_restore 22
.cfi_restore 23
.cfi_restore 24
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
.cfi_def_cfa_offset 16
ld s0, 0(sp)
.cfi_restore 8
ld ra, 8(sp)
.cfi_restore 1
addi sp, sp, 16
.cfi_def_cfa_offset 0
ret
.cfi_endproc
FUNC_END (__riscv_restore_12)
FUNC_END (__riscv_restore_11)
FUNC_END (__riscv_restore_10)
FUNC_END (__riscv_restore_9)
FUNC_END (__riscv_restore_8)
FUNC_END (__riscv_restore_7)
FUNC_END (__riscv_restore_6)
FUNC_END (__riscv_restore_5)
FUNC_END (__riscv_restore_4)
FUNC_END (__riscv_restore_3)
FUNC_END (__riscv_restore_2)
FUNC_END (__riscv_restore_1)
FUNC_END (__riscv_restore_0)
#else
#ifdef __riscv_abi_rve
FUNC_BEGIN(__riscv_save_2)
FUNC_BEGIN(__riscv_save_1)
FUNC_BEGIN(__riscv_save_0)
.cfi_startproc
# __riscv_save_* routine use t0/x5 as return address
.cfi_return_column 5
addi sp, sp, -12
.cfi_def_cfa_offset 12
sw s1, 0(sp)
.cfi_offset 9, -12
sw s0, 4(sp)
.cfi_offset 8, -8
sw ra, 8(sp)
.cfi_offset 1, -4
jr t0
.cfi_endproc
FUNC_END(__riscv_save_2)
FUNC_END(__riscv_save_1)
FUNC_END(__riscv_save_0)
FUNC_BEGIN(__riscv_restore_2)
FUNC_BEGIN(__riscv_restore_1)
FUNC_BEGIN(__riscv_restore_0)
.cfi_startproc
.cfi_def_cfa_offset 14
lw s1, 0(sp)
.cfi_restore 9
lw s0, 4(sp)
.cfi_restore 8
lw ra, 8(sp)
.cfi_restore 1
addi sp, sp, 12
.cfi_def_cfa_offset 0
ret
.cfi_endproc
FUNC_END(__riscv_restore_2)
FUNC_END(__riscv_restore_1)
FUNC_END(__riscv_restore_0)
#else
FUNC_BEGIN (__riscv_save_12)
.cfi_startproc
# __riscv_save_* routine use t0/x5 as return address
.cfi_return_column 5
addi sp, sp, -64
.cfi_def_cfa_offset 64
li t1, 0
sw s11, 12(sp)
.cfi_offset 27, -52
j .Ls10
FUNC_BEGIN (__riscv_save_11)
FUNC_BEGIN (__riscv_save_10)
FUNC_BEGIN (__riscv_save_9)
FUNC_BEGIN (__riscv_save_8)
.cfi_restore 27
addi sp, sp, -64
.cfi_def_cfa_offset 64
li t1, -16
.Ls10:
sw s10, 16(sp)
.cfi_offset 26, -48
sw s9, 20(sp)
.cfi_offset 25, -44
sw s8, 24(sp)
.cfi_offset 24, -40
sw s7, 28(sp)
.cfi_offset 23, -36
j .Ls6
FUNC_BEGIN (__riscv_save_7)
FUNC_BEGIN (__riscv_save_6)
FUNC_BEGIN (__riscv_save_5)
FUNC_BEGIN (__riscv_save_4)
.cfi_restore 23
.cfi_restore 24
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
addi sp, sp, -64
.cfi_def_cfa_offset 64
li t1, -32
.Ls6:
sw s6, 32(sp)
.cfi_offset 22, -32
sw s5, 36(sp)
.cfi_offset 21, -28
sw s4, 40(sp)
.cfi_offset 20, -24
sw s3, 44(sp)
.cfi_offset 19, -20
sw s2, 48(sp)
.cfi_offset 18, -16
sw s1, 52(sp)
.cfi_offset 9, -12
sw s0, 56(sp)
.cfi_offset 8, -8
sw ra, 60(sp)
.cfi_offset 1, -4
# CFA info is not correct in next 2 instruction since t1's
# value is depend on how may register really save.
sub sp, sp, t1
jr t0
.cfi_endproc
FUNC_END (__riscv_save_12)
FUNC_END (__riscv_save_11)
FUNC_END (__riscv_save_10)
FUNC_END (__riscv_save_9)
FUNC_END (__riscv_save_8)
FUNC_END (__riscv_save_7)
FUNC_END (__riscv_save_6)
FUNC_END (__riscv_save_5)
FUNC_END (__riscv_save_4)
FUNC_BEGIN (__riscv_save_3)
FUNC_BEGIN (__riscv_save_2)
FUNC_BEGIN (__riscv_save_1)
FUNC_BEGIN (__riscv_save_0)
.cfi_startproc
# __riscv_save_* routine use t0/x5 as return address
.cfi_return_column 5
addi sp, sp, -16
.cfi_def_cfa_offset 16
sw s2, 0(sp)
.cfi_offset 18, -16
sw s1, 4(sp)
.cfi_offset 9, -12
sw s0, 8(sp)
.cfi_offset 8, -8
sw ra, 12(sp)
.cfi_offset 1, -4
jr t0
.cfi_endproc
FUNC_END (__riscv_save_3)
FUNC_END (__riscv_save_2)
FUNC_END (__riscv_save_1)
FUNC_END (__riscv_save_0)
FUNC_BEGIN (__riscv_restore_12)
.cfi_startproc
.cfi_def_cfa_offset 64
.cfi_offset 27, -52
.cfi_offset 26, -48
.cfi_offset 25, -44
.cfi_offset 24, -40
.cfi_offset 23, -36
.cfi_offset 22, -32
.cfi_offset 21, -28
.cfi_offset 20, -24
.cfi_offset 19, -20
.cfi_offset 18, -16
.cfi_offset 9, -12
.cfi_offset 8, -8
.cfi_offset 1, -4
lw s11, 12(sp)
.cfi_restore 27
addi sp, sp, 16
FUNC_BEGIN (__riscv_restore_11)
FUNC_BEGIN (__riscv_restore_10)
FUNC_BEGIN (__riscv_restore_9)
FUNC_BEGIN (__riscv_restore_8)
.cfi_restore 27
.cfi_def_cfa_offset 48
lw s10, 0(sp)
.cfi_restore 26
lw s9, 4(sp)
.cfi_restore 25
lw s8, 8(sp)
.cfi_restore 24
lw s7, 12(sp)
.cfi_restore 23
addi sp, sp, 16
FUNC_BEGIN (__riscv_restore_7)
FUNC_BEGIN (__riscv_restore_6)
FUNC_BEGIN (__riscv_restore_5)
FUNC_BEGIN (__riscv_restore_4)
.cfi_restore 23
.cfi_restore 24
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
.cfi_def_cfa_offset 32
lw s6, 0(sp)
.cfi_restore 22
lw s5, 4(sp)
.cfi_restore 21
lw s4, 8(sp)
.cfi_restore 20
lw s3, 12(sp)
.cfi_restore 19
addi sp, sp, 16
FUNC_BEGIN (__riscv_restore_3)
FUNC_BEGIN (__riscv_restore_2)
FUNC_BEGIN (__riscv_restore_1)
FUNC_BEGIN (__riscv_restore_0)
.cfi_restore 19
.cfi_restore 20
.cfi_restore 21
.cfi_restore 22
.cfi_restore 24
.cfi_restore 25
.cfi_restore 26
.cfi_restore 27
.cfi_def_cfa_offset 16
lw s2, 0(sp)
.cfi_restore 18
lw s1, 4(sp)
.cfi_restore 9
lw s0, 8(sp)
.cfi_restore 8
lw ra, 12(sp)
.cfi_restore 1
addi sp, sp, 16
.cfi_def_cfa_offset 0
ret
.cfi_endproc
FUNC_END (__riscv_restore_12)
FUNC_END (__riscv_restore_11)
FUNC_END (__riscv_restore_10)
FUNC_END (__riscv_restore_9)
FUNC_END (__riscv_restore_8)
FUNC_END (__riscv_restore_7)
FUNC_END (__riscv_restore_6)
FUNC_END (__riscv_restore_5)
FUNC_END (__riscv_restore_4)
FUNC_END (__riscv_restore_3)
FUNC_END (__riscv_restore_2)
FUNC_END (__riscv_restore_1)
FUNC_END (__riscv_restore_0)
#endif /* __riscv_abi_rve */
#endif /* __riscv_xlen == 64 */