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0bd99911
PD		 1/* Callee-saved register spill and fill routines for RISC-V.
2
a5544970 3 Copyright (C) 2016-2019 Free Software Foundation, Inc.
0bd99911
PD		 4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
9Software Foundation; either version 3, or (at your option) any later
10version.
11
12GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or
14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15for more details.
16
17Under Section 7 of GPL version 3, you are granted additional
18permissions described in the GCC Runtime Library Exception, version
193.1, as published by the Free Software Foundation.
20
21You should have received a copy of the GNU General Public License and
22a copy of the GCC Runtime Library Exception along with this program;
23see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24<http://www.gnu.org/licenses/>. */
25
3a4c600f 26#include "riscv-asm.h"
0bd99911 27
3a4c600f 28 .text
0bd99911
PD		 29
30#if __riscv_xlen == 64
31
3a4c600f 32FUNC_BEGIN (__riscv_save_12)
0bd99911
PD		 33 .cfi_startproc
34 # __riscv_save_* routine use t0/x5 as return address
35 .cfi_return_column 5
36 addi sp, sp, -112
37 .cfi_def_cfa_offset 112
38 li t1, 0
39 sd s11, 8(sp)
40 .cfi_offset 27, -104
41 j .Ls10
42
3a4c600f
JW		 43FUNC_BEGIN (__riscv_save_11)
44FUNC_BEGIN (__riscv_save_10)
0bd99911
PD		 45 .cfi_restore 27
46 addi sp, sp, -112
47 .cfi_def_cfa_offset 112
48 li t1, -16
49.Ls10:
50 sd s10, 16(sp)
51 .cfi_offset 26, -96
52 sd s9, 24(sp)
53 .cfi_offset 25, -88
54 j .Ls8
55
3a4c600f
JW		 56FUNC_BEGIN (__riscv_save_9)
57FUNC_BEGIN (__riscv_save_8)
0bd99911
PD		 58 .cfi_restore 25
59 .cfi_restore 26
60 .cfi_restore 27
61 addi sp, sp, -112
62 .cfi_def_cfa_offset 112
63 li t1, -32
64.Ls8:
65 sd s8, 32(sp)
66 .cfi_offset 24, -80
67 sd s7, 40(sp)
68 .cfi_offset 23, -72
69 j .Ls6
70
3a4c600f
JW		 71FUNC_BEGIN (__riscv_save_7)
72FUNC_BEGIN (__riscv_save_6)
0bd99911
PD		 73 .cfi_restore 23
74 .cfi_restore 24
75 .cfi_restore 25
76 .cfi_restore 26
77 .cfi_restore 27
78 addi sp, sp, -112
79 .cfi_def_cfa_offset 112
80 li t1, -48
81.Ls6:
82 sd s6, 48(sp)
83 .cfi_offset 22, -64
84 sd s5, 56(sp)
85 .cfi_offset 21, -56
86 j .Ls4
87
3a4c600f
JW		 88FUNC_BEGIN (__riscv_save_5)
89FUNC_BEGIN (__riscv_save_4)
0bd99911
PD		 90 .cfi_restore 21
91 .cfi_restore 22
92 .cfi_restore 24
93 .cfi_restore 25
94 .cfi_restore 26
95 .cfi_restore 27
96 .cfi_restore 24
97 .cfi_restore 25
98 .cfi_restore 26
99 .cfi_restore 27
100 addi sp, sp, -112
101 .cfi_def_cfa_offset 112
102 li t1, -64
103.Ls4:
104 sd s4, 64(sp)
105 .cfi_offset 20, -48
106 sd s3, 72(sp)
107 .cfi_offset 19, -40
108 j .Ls2
109
3a4c600f
JW		 110FUNC_BEGIN (__riscv_save_3)
111FUNC_BEGIN (__riscv_save_2)
0bd99911
PD		 112 .cfi_restore 19
113 .cfi_restore 20
114 .cfi_restore 21
115 .cfi_restore 22
116 .cfi_restore 24
117 .cfi_restore 25
118 .cfi_restore 26
119 .cfi_restore 27
120 .cfi_restore 24
121 .cfi_restore 25
122 .cfi_restore 26
123 .cfi_restore 27
124 addi sp, sp, -112
125 .cfi_def_cfa_offset 112
126 li t1, -80
127.Ls2:
128 sd s2, 80(sp)
129 .cfi_offset 18, -32
130 sd s1, 88(sp)
131 .cfi_offset 9, -24
132 sd s0, 96(sp)
133 .cfi_offset 8, -16
134 sd ra, 104(sp)
135 .cfi_offset 1, -8
136 # CFA info is not correct in next 2 instruction since t1's
137 # value is depend on how may register really save.
138 sub sp, sp, t1
139 jr t0
140 .cfi_endproc
3a4c600f
JW		 141FUNC_END (__riscv_save_12)
142FUNC_END (__riscv_save_11)
143FUNC_END (__riscv_save_10)
144FUNC_END (__riscv_save_9)
145FUNC_END (__riscv_save_8)
146FUNC_END (__riscv_save_7)
147FUNC_END (__riscv_save_6)
148FUNC_END (__riscv_save_5)
149FUNC_END (__riscv_save_4)
150FUNC_END (__riscv_save_3)
151FUNC_END (__riscv_save_2)
152
153FUNC_BEGIN (__riscv_save_1)
154FUNC_BEGIN (__riscv_save_0)
0bd99911
PD		 155 .cfi_startproc
156 # __riscv_save_* routine use t0/x5 as return address
157 .cfi_return_column 5
158 addi sp, sp, -16
159 .cfi_def_cfa_offset 16
160 sd s0, 0(sp)
161 .cfi_offset 8, -16
162 sd ra, 8(sp)
163 .cfi_offset 1, -8
164 jr t0
165 .cfi_endproc
3a4c600f
JW		 166FUNC_END (__riscv_save_1)
167FUNC_END (__riscv_save_0)
0bd99911 168
3a4c600f 169FUNC_BEGIN (__riscv_restore_12)
0bd99911
PD		 170 .cfi_startproc
171 .cfi_def_cfa_offset 112
172 .cfi_offset 27, -104
173 .cfi_offset 26, -96
174 .cfi_offset 25, -88
175 .cfi_offset 24, -80
176 .cfi_offset 23, -72
177 .cfi_offset 22, -64
178 .cfi_offset 21, -56
179 .cfi_offset 20, -48
180 .cfi_offset 19, -40
181 .cfi_offset 18, -32
182 .cfi_offset 9, -24
183 .cfi_offset 8, -16
184 .cfi_offset 1, -8
185 ld s11, 8(sp)
186 .cfi_restore 27
187 addi sp, sp, 16
188
3a4c600f
JW		 189FUNC_BEGIN (__riscv_restore_11)
190FUNC_BEGIN (__riscv_restore_10)
0bd99911
PD		 191 .cfi_restore 27
192 .cfi_def_cfa_offset 96
193 ld s10, 0(sp)
194 .cfi_restore 26
195 ld s9, 8(sp)
196 .cfi_restore 25
197 addi sp, sp, 16
198
3a4c600f
JW		 199FUNC_BEGIN (__riscv_restore_9)
200FUNC_BEGIN (__riscv_restore_8)
0bd99911
PD		 201 .cfi_restore 25
202 .cfi_restore 26
203 .cfi_restore 27
204 .cfi_def_cfa_offset 80
205 ld s8, 0(sp)
206 .cfi_restore 24
207 ld s7, 8(sp)
208 .cfi_restore 23
209 addi sp, sp, 16
210
3a4c600f
JW		 211FUNC_BEGIN (__riscv_restore_7)
212FUNC_BEGIN (__riscv_restore_6)
0bd99911
PD		 213 .cfi_restore 23
214 .cfi_restore 24
215 .cfi_restore 25
216 .cfi_restore 26
217 .cfi_restore 27
218 .cfi_def_cfa_offset 64
219 ld s6, 0(sp)
220 .cfi_restore 22
221 ld s5, 8(sp)
222 .cfi_restore 21
223 addi sp, sp, 16
224
3a4c600f
JW		 225FUNC_BEGIN (__riscv_restore_5)
226FUNC_BEGIN (__riscv_restore_4)
0bd99911
PD		 227 .cfi_restore 21
228 .cfi_restore 22
229 .cfi_restore 23
230 .cfi_restore 24
231 .cfi_restore 25
232 .cfi_restore 26
233 .cfi_restore 27
234 .cfi_def_cfa_offset 48
235 ld s4, 0(sp)
236 .cfi_restore 20
237 ld s3, 8(sp)
238 .cfi_restore 19
239 addi sp, sp, 16
240
3a4c600f
JW		 241FUNC_BEGIN (__riscv_restore_3)
242FUNC_BEGIN (__riscv_restore_2)
0bd99911
PD		 243 .cfi_restore 19
244 .cfi_restore 20
245 .cfi_restore 21
246 .cfi_restore 22
247 .cfi_restore 23
248 .cfi_restore 24
249 .cfi_restore 25
250 .cfi_restore 26
251 .cfi_restore 27
252 .cfi_def_cfa_offset 32
253 ld s2, 0(sp)
254 .cfi_restore 18
255 ld s1, 8(sp)
256 .cfi_restore 9
257 addi sp, sp, 16
258
3a4c600f
JW		 259FUNC_BEGIN (__riscv_restore_1)
260FUNC_BEGIN (__riscv_restore_0)
0bd99911
PD		 261 .cfi_restore 9
262 .cfi_restore 18
263 .cfi_restore 19
264 .cfi_restore 20
265 .cfi_restore 21
266 .cfi_restore 22
267 .cfi_restore 23
268 .cfi_restore 24
269 .cfi_restore 25
270 .cfi_restore 26
271 .cfi_restore 27
272 .cfi_def_cfa_offset 16
273 ld s0, 0(sp)
274 .cfi_restore 8
275 ld ra, 8(sp)
276 .cfi_restore 1
277 addi sp, sp, 16
278 .cfi_def_cfa_offset 0
279 ret
280 .cfi_endproc
3a4c600f
JW		 281FUNC_END (__riscv_restore_12)
282FUNC_END (__riscv_restore_11)
283FUNC_END (__riscv_restore_10)
284FUNC_END (__riscv_restore_9)
285FUNC_END (__riscv_restore_8)
286FUNC_END (__riscv_restore_7)
287FUNC_END (__riscv_restore_6)
288FUNC_END (__riscv_restore_5)
289FUNC_END (__riscv_restore_4)
290FUNC_END (__riscv_restore_3)
291FUNC_END (__riscv_restore_2)
292FUNC_END (__riscv_restore_1)
293FUNC_END (__riscv_restore_0)
0bd99911
PD		 294
295#else
296
09baee1a
KC		 297#ifdef __riscv_32e
298FUNC_BEGIN(__riscv_save_2)
299FUNC_BEGIN(__riscv_save_1)
300FUNC_BEGIN(__riscv_save_0)
301 .cfi_startproc
302 # __riscv_save_* routine use t0/x5 as return address
303 .cfi_return_column 5
304 addi sp, sp, -12
305 .cfi_def_cfa_offset 12
306 sw s1, 0(sp)
307 .cfi_offset 9, -12
308 sw s0, 4(sp)
309 .cfi_offset 8, -8
310 sw ra, 8(sp)
311 .cfi_offset 1, 0
312 jr t0
313 .cfi_endproc
314FUNC_END(__riscv_save_2)
315FUNC_END(__riscv_save_1)
316FUNC_END(__riscv_save_0)
317
318FUNC_BEGIN(__riscv_restore_2)
319FUNC_BEGIN(__riscv_restore_1)
320FUNC_BEGIN(__riscv_restore_0)
321 .cfi_startproc
322 .cfi_def_cfa_offset 14
323 lw s1, 0(sp)
324 .cfi_restore 9
325 lw s0, 4(sp)
326 .cfi_restore 8
327 lw ra, 8(sp)
328 .cfi_restore 1
329 addi sp, sp, 12
330 .cfi_def_cfa_offset 0
331 ret
332 .cfi_endproc
333FUNC_END(__riscv_restore_2)
334FUNC_END(__riscv_restore_1)
335FUNC_END(__riscv_restore_0)
336
337#else
338
3a4c600f 339FUNC_BEGIN (__riscv_save_12)
0bd99911
PD		 340 .cfi_startproc
341 # __riscv_save_* routine use t0/x5 as return address
342 .cfi_return_column 5
343 addi sp, sp, -64
344 .cfi_def_cfa_offset 64
345 li t1, 0
346 sw s11, 12(sp)
347 .cfi_offset 27, -52
348 j .Ls10
349
3a4c600f
JW		 350FUNC_BEGIN (__riscv_save_11)
351FUNC_BEGIN (__riscv_save_10)
352FUNC_BEGIN (__riscv_save_9)
353FUNC_BEGIN (__riscv_save_8)
0bd99911
PD		 354 .cfi_restore 27
355 addi sp, sp, -64
356 .cfi_def_cfa_offset 64
357 li t1, -16
358.Ls10:
359 sw s10, 16(sp)
360 .cfi_offset 26, -48
361 sw s9, 20(sp)
362 .cfi_offset 25, -44
363 sw s8, 24(sp)
364 .cfi_offset 24, -40
365 sw s7, 28(sp)
366 .cfi_offset 23, -36
367 j .Ls6
368
3a4c600f
JW		 369FUNC_BEGIN (__riscv_save_7)
370FUNC_BEGIN (__riscv_save_6)
371FUNC_BEGIN (__riscv_save_5)
372FUNC_BEGIN (__riscv_save_4)
0bd99911
PD		 373 .cfi_restore 23
374 .cfi_restore 24
375 .cfi_restore 25
376 .cfi_restore 26
377 .cfi_restore 27
378 addi sp, sp, -64
379 .cfi_def_cfa_offset 64
380 li t1, -32
381.Ls6:
382 sw s6, 32(sp)
383 .cfi_offset 22, -32
384 sw s5, 36(sp)
385 .cfi_offset 21, -28
386 sw s4, 40(sp)
387 .cfi_offset 20, -24
388 sw s3, 44(sp)
389 .cfi_offset 19, -20
390 sw s2, 48(sp)
391 .cfi_offset 18, -16
392 sw s1, 52(sp)
393 .cfi_offset 9, -12
394 sw s0, 56(sp)
395 .cfi_offset 8, -8
396 sw ra, 60(sp)
397 .cfi_offset 1, -4
398 # CFA info is not correct in next 2 instruction since t1's
399 # value is depend on how may register really save.
400 sub sp, sp, t1
401 jr t0
402 .cfi_endproc
3a4c600f
JW		 403FUNC_END (__riscv_save_12)
404FUNC_END (__riscv_save_11)
405FUNC_END (__riscv_save_10)
406FUNC_END (__riscv_save_9)
407FUNC_END (__riscv_save_8)
408FUNC_END (__riscv_save_7)
409FUNC_END (__riscv_save_6)
410FUNC_END (__riscv_save_5)
411FUNC_END (__riscv_save_4)
412
413FUNC_BEGIN (__riscv_save_3)
414FUNC_BEGIN (__riscv_save_2)
415FUNC_BEGIN (__riscv_save_1)
416FUNC_BEGIN (__riscv_save_0)
0bd99911
PD		 417 .cfi_startproc
418 # __riscv_save_* routine use t0/x5 as return address
419 .cfi_return_column 5
420 addi sp, sp, -16
421 .cfi_def_cfa_offset 16
422 sw s2, 0(sp)
423 sw s1, 4(sp)
424 .cfi_offset 9, -16
425 sw s0, 8(sp)
426 .cfi_offset 8, -8
427 sw ra, 12(sp)
428 .cfi_offset 1, -4
429 jr t0
430 .cfi_endproc
3a4c600f
JW		 431FUNC_END (__riscv_save_3)
432FUNC_END (__riscv_save_2)
433FUNC_END (__riscv_save_1)
434FUNC_END (__riscv_save_0)
0bd99911 435
3a4c600f 436FUNC_BEGIN (__riscv_restore_12)
0bd99911
PD		 437 .cfi_startproc
438 .cfi_def_cfa_offset 64
439 .cfi_offset 27, -52
440 .cfi_offset 26, -48
441 .cfi_offset 25, -44
442 .cfi_offset 24, -40
443 .cfi_offset 23, -36
444 .cfi_offset 22, -32
445 .cfi_offset 21, -28
446 .cfi_offset 20, -24
447 .cfi_offset 19, -20
448 .cfi_offset 18, -16
449 .cfi_offset 9, -12
450 .cfi_offset 8, -8
451 .cfi_offset 1, -4
452 lw s11, 12(sp)
453 .cfi_restore 27
454 addi sp, sp, 16
455
3a4c600f
JW		 456FUNC_BEGIN (__riscv_restore_11)
457FUNC_BEGIN (__riscv_restore_10)
458FUNC_BEGIN (__riscv_restore_9)
459FUNC_BEGIN (__riscv_restore_8)
0bd99911
PD		 460 .cfi_restore 27
461 .cfi_def_cfa_offset 48
462 lw s10, 0(sp)
463 .cfi_restore 26
464 lw s9, 4(sp)
465 .cfi_restore 25
466 lw s8, 8(sp)
467 .cfi_restore 24
468 lw s7, 12(sp)
469 .cfi_restore 23
470 addi sp, sp, 16
471
3a4c600f
JW		 472FUNC_BEGIN (__riscv_restore_7)
473FUNC_BEGIN (__riscv_restore_6)
474FUNC_BEGIN (__riscv_restore_5)
475FUNC_BEGIN (__riscv_restore_4)
0bd99911
PD		 476 .cfi_restore 23
477 .cfi_restore 24
478 .cfi_restore 25
479 .cfi_restore 26
480 .cfi_restore 27
481 .cfi_def_cfa_offset 32
482 lw s6, 0(sp)
483 .cfi_restore 22
484 lw s5, 4(sp)
485 .cfi_restore 21
486 lw s4, 8(sp)
487 .cfi_restore 20
488 lw s3, 12(sp)
489 .cfi_restore 19
490 addi sp, sp, 16
491
3a4c600f
JW		 492FUNC_BEGIN (__riscv_restore_3)
493FUNC_BEGIN (__riscv_restore_2)
494FUNC_BEGIN (__riscv_restore_1)
495FUNC_BEGIN (__riscv_restore_0)
0bd99911
PD		 496 .cfi_restore 19
497 .cfi_restore 20
498 .cfi_restore 21
499 .cfi_restore 22
500 .cfi_restore 24
501 .cfi_restore 25
502 .cfi_restore 26
503 .cfi_restore 27
504 .cfi_def_cfa_offset 16
505 lw s2, 0(sp)
506 .cfi_restore 18
507 lw s1, 4(sp)
508 .cfi_restore 9
509 lw s0, 8(sp)
510 .cfi_restore 8
511 lw ra, 12(sp)
512 .cfi_restore 1
513 addi sp, sp, 16
514 .cfi_def_cfa_offset 0
515 ret
516 .cfi_endproc
3a4c600f
JW		 517FUNC_END (__riscv_restore_12)
518FUNC_END (__riscv_restore_11)
519FUNC_END (__riscv_restore_10)
520FUNC_END (__riscv_restore_9)
521FUNC_END (__riscv_restore_8)
522FUNC_END (__riscv_restore_7)
523FUNC_END (__riscv_restore_6)
524FUNC_END (__riscv_restore_5)
525FUNC_END (__riscv_restore_4)
526FUNC_END (__riscv_restore_3)
527FUNC_END (__riscv_restore_2)
528FUNC_END (__riscv_restore_1)
529FUNC_END (__riscv_restore_0)
0bd99911 530
09baee1a
KC		 531#endif /* __riscv_32e */
532
533#endif /* __riscv_xlen == 64 */
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