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
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
|
//===-- RISCV.td - Describe the RISCV Target Machine -------*- tablegen -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
include "llvm/Target/Target.td"
//===----------------------------------------------------------------------===//
// RISC-V subtarget features and instruction predicates.
//===----------------------------------------------------------------------===//
def FeatureStdExtM
: SubtargetFeature<"m", "HasStdExtM", "true",
"'M' (Integer Multiplication and Division)">;
def HasStdExtM : Predicate<"Subtarget->hasStdExtM()">,
AssemblerPredicate<(all_of FeatureStdExtM),
"'M' (Integer Multiplication and Division)">;
def FeatureStdExtA
: SubtargetFeature<"a", "HasStdExtA", "true",
"'A' (Atomic Instructions)">;
def HasStdExtA : Predicate<"Subtarget->hasStdExtA()">,
AssemblerPredicate<(all_of FeatureStdExtA),
"'A' (Atomic Instructions)">;
def FeatureStdExtF
: SubtargetFeature<"f", "HasStdExtF", "true",
"'F' (Single-Precision Floating-Point)">;
def HasStdExtF : Predicate<"Subtarget->hasStdExtF()">,
AssemblerPredicate<(all_of FeatureStdExtF),
"'F' (Single-Precision Floating-Point)">;
def FeatureStdExtD
: SubtargetFeature<"d", "HasStdExtD", "true",
"'D' (Double-Precision Floating-Point)",
[FeatureStdExtF]>;
def HasStdExtD : Predicate<"Subtarget->hasStdExtD()">,
AssemblerPredicate<(all_of FeatureStdExtD),
"'D' (Double-Precision Floating-Point)">;
def FeatureStdExtZihintpause
: SubtargetFeature<"zihintpause", "HasStdExtZihintpause", "true",
"'zihintpause' (Pause Hint)">;
def HasStdExtZihintpause : Predicate<"Subtarget->hasStdExtZihintpause()">,
AssemblerPredicate<(all_of FeatureStdExtZihintpause),
"'Zihintpause' (Pause Hint)">;
def FeatureStdExtZfhmin
: SubtargetFeature<"zfhmin", "HasStdExtZfhmin", "true",
"'Zfhmin' (Half-Precision Floating-Point Minimal)",
[FeatureStdExtF]>;
def HasStdExtZfhmin : Predicate<"Subtarget->hasStdExtZfhmin()">,
AssemblerPredicate<(all_of FeatureStdExtZfhmin),
"'Zfhmin' (Half-Precision Floating-Point Minimal)">;
def FeatureStdExtZfh
: SubtargetFeature<"zfh", "HasStdExtZfh", "true",
"'Zfh' (Half-Precision Floating-Point)",
[FeatureStdExtF]>;
def HasStdExtZfh : Predicate<"Subtarget->hasStdExtZfh()">,
AssemblerPredicate<(all_of FeatureStdExtZfh),
"'Zfh' (Half-Precision Floating-Point)">;
def HasStdExtZfhOrZfhmin
: Predicate<"Subtarget->hasStdExtZfh() || Subtarget->hasStdExtZfhmin()">,
AssemblerPredicate<(any_of FeatureStdExtZfh, FeatureStdExtZfhmin),
"'Zfh' (Half-Precision Floating-Point) or "
"'Zfhmin' (Half-Precision Floating-Point Minimal)">;
def FeatureStdExtZfinx
: SubtargetFeature<"zfinx", "HasStdExtZfinx", "true",
"'Zfinx' (Float in Integer)">;
def HasStdExtZfinx : Predicate<"Subtarget->hasStdExtZfinx()">,
AssemblerPredicate<(all_of FeatureStdExtZfinx),
"'Zfinx' (Float in Integer)">;
def FeatureStdExtZdinx
: SubtargetFeature<"zdinx", "HasStdExtZdinx", "true",
"'Zdinx' (Double in Integer)",
[FeatureStdExtZfinx]>;
def HasStdExtZdinx : Predicate<"Subtarget->hasStdExtZdinx()">,
AssemblerPredicate<(all_of FeatureStdExtZdinx),
"'Zdinx' (Double in Integer)">;
def FeatureStdExtZhinxmin
: SubtargetFeature<"zhinxmin", "HasStdExtZhinxmin", "true",
"'Zhinxmin' (Half Float in Integer Minimal)",
[FeatureStdExtZfinx]>;
def HasStdExtZhinxmin : Predicate<"Subtarget->hasStdExtZhinxmin()">,
AssemblerPredicate<(all_of FeatureStdExtZhinxmin),
"'Zhinxmin' (Half Float in Integer Minimal)">;
def FeatureStdExtZhinx
: SubtargetFeature<"zhinx", "HasStdExtZhinx", "true",
"'Zhinx' (Half Float in Integer)",
[FeatureStdExtZfinx]>;
def HasStdExtZhinx : Predicate<"Subtarget->hasStdExtZhinx()">,
AssemblerPredicate<(all_of FeatureStdExtZhinx),
"'Zhinx' (Half Float in Integer)">;
def HasStdExtZhinxOrZhinxmin
: Predicate<"Subtarget->hasStdExtZhinx() || Subtarget->hasStdExtZhinxmin()">,
AssemblerPredicate<(any_of FeatureStdExtZhinx, FeatureStdExtZhinxmin),
"'Zhinx' (Half Float in Integer) or "
"'Zhinxmin' (Half Float in Integer Minimal)">;
def FeatureStdExtC
: SubtargetFeature<"c", "HasStdExtC", "true",
"'C' (Compressed Instructions)">;
def HasStdExtC : Predicate<"Subtarget->hasStdExtC()">,
AssemblerPredicate<(all_of FeatureStdExtC),
"'C' (Compressed Instructions)">;
def FeatureStdExtZba
: SubtargetFeature<"zba", "HasStdExtZba", "true",
"'Zba' (Address Generation Instructions)">;
def HasStdExtZba : Predicate<"Subtarget->hasStdExtZba()">,
AssemblerPredicate<(all_of FeatureStdExtZba),
"'Zba' (Address Generation Instructions)">;
def NotHasStdExtZba : Predicate<"!Subtarget->hasStdExtZba()">;
def FeatureStdExtZbb
: SubtargetFeature<"zbb", "HasStdExtZbb", "true",
"'Zbb' (Basic Bit-Manipulation)">;
def HasStdExtZbb : Predicate<"Subtarget->hasStdExtZbb()">,
AssemblerPredicate<(all_of FeatureStdExtZbb),
"'Zbb' (Basic Bit-Manipulation)">;
def FeatureStdExtZbc
: SubtargetFeature<"zbc", "HasStdExtZbc", "true",
"'Zbc' (Carry-Less Multiplication)">;
def HasStdExtZbc : Predicate<"Subtarget->hasStdExtZbc()">,
AssemblerPredicate<(all_of FeatureStdExtZbc),
"'Zbc' (Carry-Less Multiplication)">;
def FeatureStdExtZbe
: SubtargetFeature<"experimental-zbe", "HasStdExtZbe", "true",
"'Zbe' (Extract-Deposit 'Zb' Instructions)">;
def HasStdExtZbe : Predicate<"Subtarget->hasStdExtZbe()">,
AssemblerPredicate<(all_of FeatureStdExtZbe),
"'Zbe' (Extract-Deposit 'Zb' Instructions)">;
def FeatureStdExtZbf
: SubtargetFeature<"experimental-zbf", "HasStdExtZbf", "true",
"'Zbf' (Bit-Field 'Zb' Instructions)">;
def HasStdExtZbf : Predicate<"Subtarget->hasStdExtZbf()">,
AssemblerPredicate<(all_of FeatureStdExtZbf),
"'Zbf' (Bit-Field 'Zb' Instructions)">;
def FeatureStdExtZbm
: SubtargetFeature<"experimental-zbm", "HasStdExtZbm", "true",
"'Zbm' (Matrix 'Zb' Instructions)">;
def HasStdExtZbm : Predicate<"Subtarget->hasStdExtZbm()">,
AssemblerPredicate<(all_of FeatureStdExtZbm),
"'Zbm' (Matrix 'Zb' Instructions)">;
def FeatureStdExtZbp
: SubtargetFeature<"experimental-zbp", "HasStdExtZbp", "true",
"'Zbp' (Permutation 'Zb' Instructions)">;
def HasStdExtZbp : Predicate<"Subtarget->hasStdExtZbp()">,
AssemblerPredicate<(all_of FeatureStdExtZbp),
"'Zbp' (Permutation 'Zb' Instructions)">;
def FeatureStdExtZbr
: SubtargetFeature<"experimental-zbr", "HasStdExtZbr", "true",
"'Zbr' (Polynomial Reduction 'Zb' Instructions)">;
def HasStdExtZbr : Predicate<"Subtarget->hasStdExtZbr()">,
AssemblerPredicate<(all_of FeatureStdExtZbr),
"'Zbr' (Polynomial Reduction 'Zb' Instructions)">;
def FeatureStdExtZbs
: SubtargetFeature<"zbs", "HasStdExtZbs", "true",
"'Zbs' (Single-Bit Instructions)">;
def HasStdExtZbs : Predicate<"Subtarget->hasStdExtZbs()">,
AssemblerPredicate<(all_of FeatureStdExtZbs),
"'Zbs' (Single-Bit Instructions)">;
def FeatureStdExtZbt
: SubtargetFeature<"experimental-zbt", "HasStdExtZbt", "true",
"'Zbt' (Ternary 'Zb' Instructions)">;
def HasStdExtZbt : Predicate<"Subtarget->hasStdExtZbt()">,
AssemblerPredicate<(all_of FeatureStdExtZbt),
"'Zbt' (Ternary 'Zb' Instructions)">;
// Some instructions belong to both the basic and the permutation
// subextensions. They should be enabled if either has been specified.
def HasStdExtZbbOrZbp
: Predicate<"Subtarget->hasStdExtZbb() || Subtarget->hasStdExtZbp()">,
AssemblerPredicate<(any_of FeatureStdExtZbb, FeatureStdExtZbp),
"'Zbb' (Basic Bit-Manipulation) or "
"'Zbp' (Permutation 'Zb' Instructions)">;
def FeatureStdExtZbkb
: SubtargetFeature<"zbkb", "HasStdExtZbkb", "true",
"'Zbkb' (Bitmanip instructions for Cryptography)">;
def HasStdExtZbkb : Predicate<"Subtarget->hasStdExtZbkb()">,
AssemblerPredicate<(all_of FeatureStdExtZbkb),
"'Zbkb' (Bitmanip instructions for Cryptography)">;
def FeatureStdExtZbkx
: SubtargetFeature<"zbkx", "HasStdExtZbkx", "true",
"'Zbkx' (Crossbar permutation instructions)">;
def HasStdExtZbkx : Predicate<"Subtarget->hasStdExtZbkx()">,
AssemblerPredicate<(all_of FeatureStdExtZbkx),
"'Zbkx' (Crossbar permutation instructions)">;
def HasStdExtZbpOrZbkx
: Predicate<"Subtarget->hasStdExtZbp() || Subtarget->hasStdExtZbkx()">,
AssemblerPredicate<(any_of FeatureStdExtZbp, FeatureStdExtZbkx),
"'Zbp' (Permutation 'Zb' Instructions) or "
"'Zbkx' (Crossbar permutation instructions)">;
def HasStdExtZbpOrZbkb
: Predicate<"Subtarget->hasStdExtZbp() || Subtarget->hasStdExtZbkb()">,
AssemblerPredicate<(any_of FeatureStdExtZbp, FeatureStdExtZbkb),
"'Zbp' (Permutation 'Zb' Instructions) or "
"'Zbkb' (Bitmanip instructions for Cryptography)">;
def HasStdExtZbbOrZbkb
: Predicate<"Subtarget->hasStdExtZbb() || Subtarget->hasStdExtZbkb()">,
AssemblerPredicate<(any_of FeatureStdExtZbb, FeatureStdExtZbkb),
"'Zbb' (Basic Bit-Manipulation) or "
"'Zbkb' (Bitmanip instructions for Cryptography)">;
def HasStdExtZbbOrZbpOrZbkb
: Predicate<"Subtarget->hasStdExtZbb() || Subtarget->hasStdExtZbp() || Subtarget->hasStdExtZbkb()">,
AssemblerPredicate<(any_of FeatureStdExtZbb, FeatureStdExtZbp, FeatureStdExtZbkb),
"'Zbb' (Basic Bit-Manipulation) or "
"'Zbp' (Permutation 'Zb' Instructions) or "
"'Zbkb' (Bitmanip instructions for Cryptography)">;
// The Carry-less multiply subextension for cryptography is a subset of basic carry-less multiply subextension. The former should be enabled if the latter is enabled.
def FeatureStdExtZbkc
: SubtargetFeature<"zbkc", "HasStdExtZbkc", "true",
"'Zbkc' (Carry-less multiply instructions for Cryptography)">;
def HasStdExtZbkc
: Predicate<"Subtarget->hasStdExtZbkc()">,
AssemblerPredicate<(all_of FeatureStdExtZbkc),
"'Zbkc' (Carry-less multiply instructions for Cryptography)">;
def HasStdExtZbcOrZbkc
: Predicate<"Subtarget->hasStdExtZbc() || Subtarget->hasStdExtZbkc()">,
AssemblerPredicate<(any_of FeatureStdExtZbc, FeatureStdExtZbkc),
"'Zbc' (Carry-Less Multiplication) or "
"'Zbkc' (Carry-less multiply instructions for Cryptography)">;
def FeatureStdExtZknd
: SubtargetFeature<"zknd", "HasStdExtZknd", "true",
"'Zknd' (NIST Suite: AES Decryption)">;
def HasStdExtZknd : Predicate<"Subtarget->hasStdExtZknd()">,
AssemblerPredicate<(all_of FeatureStdExtZknd),
"'Zknd' (NIST Suite: AES Decryption)">;
def FeatureStdExtZkne
: SubtargetFeature<"zkne", "HasStdExtZkne", "true",
"'Zkne' (NIST Suite: AES Encryption)">;
def HasStdExtZkne : Predicate<"Subtarget->hasStdExtZkne()">,
AssemblerPredicate<(all_of FeatureStdExtZkne),
"'Zkne' (NIST Suite: AES Encryption)">;
// Some instructions belong to both Zknd and Zkne subextensions.
// They should be enabled if either has been specified.
def HasStdExtZkndOrZkne
: Predicate<"Subtarget->hasStdExtZknd() || Subtarget->hasStdExtZkne()">,
AssemblerPredicate<(any_of FeatureStdExtZknd, FeatureStdExtZkne),
"'Zknd' (NIST Suite: AES Decryption) or "
"'Zkne' (NIST Suite: AES Encryption)">;
def FeatureStdExtZknh
: SubtargetFeature<"zknh", "HasStdExtZknh", "true",
"'Zknh' (NIST Suite: Hash Function Instructions)">;
def HasStdExtZknh : Predicate<"Subtarget->hasStdExtZknh()">,
AssemblerPredicate<(all_of FeatureStdExtZknh),
"'Zknh' (NIST Suite: Hash Function Instructions)">;
def FeatureStdExtZksed
: SubtargetFeature<"zksed", "HasStdExtZksed", "true",
"'Zksed' (ShangMi Suite: SM4 Block Cipher Instructions)">;
def HasStdExtZksed : Predicate<"Subtarget->hasStdExtZksed()">,
AssemblerPredicate<(all_of FeatureStdExtZksed),
"'Zksed' (ShangMi Suite: SM4 Block Cipher Instructions)">;
def FeatureStdExtZksh
: SubtargetFeature<"zksh", "HasStdExtZksh", "true",
"'Zksh' (ShangMi Suite: SM3 Hash Function Instructions)">;
def HasStdExtZksh : Predicate<"Subtarget->hasStdExtZksh()">,
AssemblerPredicate<(all_of FeatureStdExtZksh),
"'Zksh' (ShangMi Suite: SM3 Hash Function Instructions)">;
def FeatureStdExtZkr
: SubtargetFeature<"zkr", "HasStdExtZkr", "true",
"'Zkr' (Entropy Source Extension)">;
def HasStdExtZkr : Predicate<"Subtarget->hasStdExtZkr()">,
AssemblerPredicate<(all_of FeatureStdExtZkr),
"'Zkr' (Entropy Source Extension)">;
def FeatureStdExtZkn
: SubtargetFeature<"zkn", "HasStdExtZkn", "true",
"'Zkn' (NIST Algorithm Suite)",
[FeatureStdExtZbkb,
FeatureStdExtZbkc,
FeatureStdExtZbkx,
FeatureStdExtZkne,
FeatureStdExtZknd,
FeatureStdExtZknh]>;
def FeatureStdExtZks
: SubtargetFeature<"zks", "HasStdExtZks", "true",
"'Zks' (ShangMi Algorithm Suite)",
[FeatureStdExtZbkb,
FeatureStdExtZbkc,
FeatureStdExtZbkx,
FeatureStdExtZksed,
FeatureStdExtZksh]>;
def FeatureStdExtZkt
: SubtargetFeature<"zkt", "HasStdExtZkt", "true",
"'Zkt' (Data Independent Execution Latency)">;
def FeatureStdExtZk
: SubtargetFeature<"zk", "HasStdExtZk", "true",
"'Zk' (Standard scalar cryptography extension)",
[FeatureStdExtZkn,
FeatureStdExtZkr,
FeatureStdExtZkt]>;
def FeatureNoRVCHints
: SubtargetFeature<"no-rvc-hints", "EnableRVCHintInstrs", "false",
"Disable RVC Hint Instructions.">;
def HasRVCHints : Predicate<"Subtarget->enableRVCHintInstrs()">,
AssemblerPredicate<(all_of(not FeatureNoRVCHints)),
"RVC Hint Instructions">;
def FeatureStdExtZvl32b : SubtargetFeature<"zvl32b", "ZvlLen", "32",
"'Zvl' (Minimum Vector Length) 32">;
foreach i = { 6-15 } in {
defvar I = !shl(1, i);
def FeatureStdExtZvl#I#b :
SubtargetFeature<"zvl"#I#"b", "ZvlLen", !cast<string>(I),
"'Zvl' (Minimum Vector Length) "#I,
[!cast<SubtargetFeature>("FeatureStdExtZvl"#!srl(I, 1)#"b")]>;
}
def FeatureStdExtZve32x
: SubtargetFeature<"zve32x", "HasStdExtZve32x", "true",
"'Zve32x' (Vector Extensions for Embedded Processors "
"with maximal 32 EEW)",
[FeatureStdExtZvl32b]>;
def FeatureStdExtZve32f
: SubtargetFeature<"zve32f", "HasStdExtZve32f", "true",
"'Zve32f' (Vector Extensions for Embedded Processors "
"with maximal 32 EEW and F extension)",
[FeatureStdExtZve32x]>;
def FeatureStdExtZve64x
: SubtargetFeature<"zve64x", "HasStdExtZve64x", "true",
"'Zve64x' (Vector Extensions for Embedded Processors "
"with maximal 64 EEW)", [FeatureStdExtZve32x, FeatureStdExtZvl64b]>;
def FeatureStdExtZve64f
: SubtargetFeature<"zve64f", "HasStdExtZve64f", "true",
"'Zve64f' (Vector Extensions for Embedded Processors "
"with maximal 64 EEW and F extension)",
[FeatureStdExtZve32f, FeatureStdExtZve64x]>;
def FeatureStdExtZve64d
: SubtargetFeature<"zve64d", "HasStdExtZve64d", "true",
"'Zve64d' (Vector Extensions for Embedded Processors "
"with maximal 64 EEW, F and D extension)",
[FeatureStdExtZve64f]>;
def FeatureStdExtV
: SubtargetFeature<"v", "HasStdExtV", "true",
"'V' (Vector Extension for Application Processors)",
[FeatureStdExtZvl128b, FeatureStdExtZve64d, FeatureStdExtF, FeatureStdExtD]>;
def HasVInstructions : Predicate<"Subtarget->hasVInstructions()">,
AssemblerPredicate<
(any_of FeatureStdExtZve32x),
"'V' (Vector Extension for Application Processors), 'Zve32x' or "
"'Zve64x' (Vector Extensions for Embedded Processors)">;
def HasVInstructionsI64 : Predicate<"Subtarget->hasVInstructionsI64()">,
AssemblerPredicate<
(any_of FeatureStdExtZve64x),
"'V' (Vector Extension for Application Processors) or 'Zve64x' "
"(Vector Extensions for Embedded Processors)">;
def HasVInstructionsAnyF : Predicate<"Subtarget->hasVInstructionsAnyF()">,
AssemblerPredicate<
(any_of FeatureStdExtZve32f),
"'V' (Vector Extension for Application Processors), 'Zve32f', "
"'Zve64f' or 'Zve64d' (Vector Extensions for Embedded Processors)">;
def FeatureStdExtZvfh
: SubtargetFeature<"experimental-zvfh", "HasStdExtZvfh", "true",
"'Zvfh' (Vector Half-Precision Floating-Point)",
[FeatureStdExtZve32f]>;
def FeatureStdExtZicbom
: SubtargetFeature<"zicbom", "HasStdExtZicbom", "true",
"'Zicbom' (Cache-Block Management Instructions)">;
def HasStdExtZicbom : Predicate<"Subtarget->hasStdExtZicbom()">,
AssemblerPredicate<(all_of FeatureStdExtZicbom),
"'Zicbom' (Cache-Block Management Instructions)">;
def FeatureStdExtZicboz
: SubtargetFeature<"zicboz", "HasStdExtZicboz", "true",
"'Zicboz' (Cache-Block Zero Instructions)">;
def HasStdExtZicboz : Predicate<"Subtarget->hasStdExtZicboz()">,
AssemblerPredicate<(all_of FeatureStdExtZicboz),
"'Zicboz' (Cache-Block Zero Instructions)">;
def FeatureStdExtZicbop
: SubtargetFeature<"zicbop", "HasStdExtZicbop", "true",
"'Zicbop' (Cache-Block Prefetch Instructions)">;
def HasStdExtZicbop : Predicate<"Subtarget->hasStdExtZicbop()">,
AssemblerPredicate<(all_of FeatureStdExtZicbop),
"'Zicbop' (Cache-Block Prefetch Instructions)">;
def Feature64Bit
: SubtargetFeature<"64bit", "HasRV64", "true", "Implements RV64">;
def IsRV64 : Predicate<"Subtarget->is64Bit()">,
AssemblerPredicate<(all_of Feature64Bit),
"RV64I Base Instruction Set">;
def IsRV32 : Predicate<"!Subtarget->is64Bit()">,
AssemblerPredicate<(all_of (not Feature64Bit)),
"RV32I Base Instruction Set">;
defvar RV32 = DefaultMode;
def RV64 : HwMode<"+64bit">;
def FeatureRV32E
: SubtargetFeature<"e", "IsRV32E", "true",
"Implements RV32E (provides 16 rather than 32 GPRs)">;
def IsRV32E : Predicate<"Subtarget->isRV32E()">,
AssemblerPredicate<(all_of FeatureRV32E)>;
def FeatureRelax
: SubtargetFeature<"relax", "EnableLinkerRelax", "true",
"Enable Linker relaxation.">;
foreach i = {1-31} in
def FeatureReserveX#i :
SubtargetFeature<"reserve-x"#i, "UserReservedRegister[RISCV::X"#i#"]",
"true", "Reserve X"#i>;
def FeatureSaveRestore : SubtargetFeature<"save-restore", "EnableSaveRestore",
"true", "Enable save/restore.">;
def FeatureUnalignedScalarMem
: SubtargetFeature<"unaligned-scalar-mem", "EnableUnalignedScalarMem",
"true", "Has reasonably performant unaligned scalar "
"loads and stores">;
def TuneLUIADDIFusion
: SubtargetFeature<"lui-addi-fusion", "HasLUIADDIFusion",
"true", "Enable LUI+ADDI macrofusion">;
def TuneNoDefaultUnroll
: SubtargetFeature<"no-default-unroll", "EnableDefaultUnroll", "false",
"Disable default unroll preference.">;
def TuneSiFive7 : SubtargetFeature<"sifive7", "RISCVProcFamily", "SiFive7",
"SiFive 7-Series processors">;
//===----------------------------------------------------------------------===//
// Named operands for CSR instructions.
//===----------------------------------------------------------------------===//
include "RISCVSystemOperands.td"
//===----------------------------------------------------------------------===//
// Registers, calling conventions, instruction descriptions.
//===----------------------------------------------------------------------===//
include "RISCVSchedule.td"
include "RISCVRegisterInfo.td"
include "RISCVCallingConv.td"
include "RISCVInstrInfo.td"
include "RISCVRegisterBanks.td"
include "RISCVSchedRocket.td"
include "RISCVSchedSiFive7.td"
//===----------------------------------------------------------------------===//
// RISC-V processors supported.
//===----------------------------------------------------------------------===//
def : ProcessorModel<"generic-rv32", NoSchedModel, []>;
def : ProcessorModel<"generic-rv64", NoSchedModel, [Feature64Bit]>;
// Support generic for compatibility with other targets. The triple will be used
// to change to the appropriate rv32/rv64 version.
def : ProcessorModel<"generic", NoSchedModel, []>;
def : ProcessorModel<"rocket-rv32", RocketModel, []>;
def : ProcessorModel<"rocket-rv64", RocketModel, [Feature64Bit]>;
def : ProcessorModel<"sifive-7-rv32", SiFive7Model, [],
[TuneSiFive7, TuneNoDefaultUnroll]>;
def : ProcessorModel<"sifive-7-rv64", SiFive7Model, [Feature64Bit],
[TuneSiFive7, TuneNoDefaultUnroll]>;
def : ProcessorModel<"sifive-e20", RocketModel, [FeatureStdExtM,
FeatureStdExtC]>;
def : ProcessorModel<"sifive-e21", RocketModel, [FeatureStdExtM,
FeatureStdExtA,
FeatureStdExtC]>;
def : ProcessorModel<"sifive-e24", RocketModel, [FeatureStdExtM,
FeatureStdExtA,
FeatureStdExtF,
FeatureStdExtC]>;
def : ProcessorModel<"sifive-e31", RocketModel, [FeatureStdExtM,
FeatureStdExtA,
FeatureStdExtC]>;
def : ProcessorModel<"sifive-e34", RocketModel, [FeatureStdExtM,
FeatureStdExtA,
FeatureStdExtF,
FeatureStdExtC]>;
def : ProcessorModel<"sifive-e76", SiFive7Model, [FeatureStdExtM,
FeatureStdExtA,
FeatureStdExtF,
FeatureStdExtC],
[TuneSiFive7, TuneNoDefaultUnroll]>;
def : ProcessorModel<"sifive-s21", RocketModel, [Feature64Bit,
FeatureStdExtM,
FeatureStdExtA,
FeatureStdExtC]>;
def : ProcessorModel<"sifive-s51", RocketModel, [Feature64Bit,
FeatureStdExtM,
FeatureStdExtA,
FeatureStdExtC]>;
def : ProcessorModel<"sifive-s54", RocketModel, [Feature64Bit,
FeatureStdExtM,
FeatureStdExtA,
FeatureStdExtF,
FeatureStdExtD,
FeatureStdExtC]>;
def : ProcessorModel<"sifive-s76", SiFive7Model, [Feature64Bit,
FeatureStdExtM,
FeatureStdExtA,
FeatureStdExtF,
FeatureStdExtD,
FeatureStdExtC],
[TuneSiFive7, TuneNoDefaultUnroll]>;
def : ProcessorModel<"sifive-u54", RocketModel, [Feature64Bit,
FeatureStdExtM,
FeatureStdExtA,
FeatureStdExtF,
FeatureStdExtD,
FeatureStdExtC]>;
def : ProcessorModel<"sifive-u74", SiFive7Model, [Feature64Bit,
FeatureStdExtM,
FeatureStdExtA,
FeatureStdExtF,
FeatureStdExtD,
FeatureStdExtC],
[TuneSiFive7, TuneNoDefaultUnroll]>;
//===----------------------------------------------------------------------===//
// Define the RISC-V target.
//===----------------------------------------------------------------------===//
def RISCVInstrInfo : InstrInfo {
let guessInstructionProperties = 0;
}
def RISCVAsmParser : AsmParser {
let ShouldEmitMatchRegisterAltName = 1;
let AllowDuplicateRegisterNames = 1;
}
def RISCVAsmWriter : AsmWriter {
int PassSubtarget = 1;
}
def RISCV : Target {
let InstructionSet = RISCVInstrInfo;
let AssemblyParsers = [RISCVAsmParser];
let AssemblyWriters = [RISCVAsmWriter];
let AllowRegisterRenaming = 1;
}
|
