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X86InstComments.cpp
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1//===-- X86InstComments.cpp - Generate verbose-asm comments for instrs ----===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This defines functionality used to emit comments about X86 instructions to
10// an output stream for -fverbose-asm.
11//
12//===----------------------------------------------------------------------===//
13
14#include "X86InstComments.h"
15#include "X86ATTInstPrinter.h"
16#include "X86BaseInfo.h"
17#include "X86MCTargetDesc.h"
18#include "X86ShuffleDecode.h"
19#include "llvm/MC/MCInst.h"
20#include "llvm/MC/MCInstrInfo.h"
21#include "llvm/Support/raw_ostream.h"
22#include <string_view>
23
24using namespace llvm;
25
26#define CASE_SSE_INS_COMMON(Inst, src) \
27 case X86::Inst##src:
28
29#define CASE_AVX_INS_COMMON(Inst, Suffix, src) \
30 case X86::V##Inst##Suffix##src:
31
32#define CASE_MASK_INS_COMMON(Inst, Suffix, src) \
33 case X86::V##Inst##Suffix##src##k:
34
35#define CASE_MASKZ_INS_COMMON(Inst, Suffix, src) \
36 case X86::V##Inst##Suffix##src##kz:
37
38#define CASE_AVX512_INS_COMMON(Inst, Suffix, src) \
39 CASE_AVX_INS_COMMON(Inst, Suffix, src) \
40 CASE_MASK_INS_COMMON(Inst, Suffix, src) \
41 CASE_MASKZ_INS_COMMON(Inst, Suffix, src)
42
43#define CASE_MASK_INS_COMMON_INT(Inst, Suffix, src) \
44 case X86::V##Inst##Suffix##src##k_Int:
45
46#define CASE_MASKZ_INS_COMMON_INT(Inst, Suffix, src) \
47 case X86::V##Inst##Suffix##src##kz_Int:
48
49#define CASE_AVX512_INS_COMMON_INT(Inst, Suffix, src) \
50 CASE_AVX_INS_COMMON(Inst, Suffix, src##_Int) \
51 CASE_MASK_INS_COMMON_INT(Inst, Suffix, src) \
52 CASE_MASKZ_INS_COMMON_INT(Inst, Suffix, src)
53
54#define CASE_FPCLASS_PACKED(Inst, src) \
55 CASE_AVX_INS_COMMON(Inst, Z, src##i) \
56 CASE_AVX_INS_COMMON(Inst, Z256, src##i) \
57 CASE_AVX_INS_COMMON(Inst, Z128, src##i) \
58 CASE_MASK_INS_COMMON(Inst, Z, src##i)
59
60#define CASE_FPCLASS_PACKED_MEM(Inst) \
61 CASE_FPCLASS_PACKED(Inst, m) \
62 CASE_FPCLASS_PACKED(Inst, mb)
63
64#define CASE_FPCLASS_SCALAR(Inst, src) \
65 CASE_AVX_INS_COMMON(Inst, Z, src##i) \
66 CASE_MASK_INS_COMMON(Inst, Z, src##i)
67
68#define CASE_PTERNLOG(Inst, src) \
69 CASE_AVX512_INS_COMMON(Inst, Z, r##src##i) \
70 CASE_AVX512_INS_COMMON(Inst, Z256, r##src##i) \
71 CASE_AVX512_INS_COMMON(Inst, Z128, r##src##i)
72
73#define CASE_MOVDUP(Inst, src) \
74 CASE_AVX512_INS_COMMON(Inst, Z, r##src) \
75 CASE_AVX512_INS_COMMON(Inst, Z256, r##src) \
76 CASE_AVX512_INS_COMMON(Inst, Z128, r##src) \
77 CASE_AVX_INS_COMMON(Inst, , r##src) \
78 CASE_AVX_INS_COMMON(Inst, Y, r##src) \
79 CASE_SSE_INS_COMMON(Inst, r##src)
80
81#define CASE_MASK_MOVDUP(Inst, src) \
82 CASE_MASK_INS_COMMON(Inst, Z, r##src) \
83 CASE_MASK_INS_COMMON(Inst, Z256, r##src) \
84 CASE_MASK_INS_COMMON(Inst, Z128, r##src)
85
86#define CASE_MASKZ_MOVDUP(Inst, src) \
87 CASE_MASKZ_INS_COMMON(Inst, Z, r##src) \
88 CASE_MASKZ_INS_COMMON(Inst, Z256, r##src) \
89 CASE_MASKZ_INS_COMMON(Inst, Z128, r##src)
90
91#define CASE_PMOVZX(Inst, src) \
92 CASE_AVX512_INS_COMMON(Inst, Z, r##src) \
93 CASE_AVX512_INS_COMMON(Inst, Z256, r##src) \
94 CASE_AVX512_INS_COMMON(Inst, Z128, r##src) \
95 CASE_AVX_INS_COMMON(Inst, , r##src) \
96 CASE_AVX_INS_COMMON(Inst, Y, r##src) \
97 CASE_SSE_INS_COMMON(Inst, r##src)
98
99#define CASE_UNPCK(Inst, src) \
100 CASE_AVX512_INS_COMMON(Inst, Z, r##src) \
101 CASE_AVX512_INS_COMMON(Inst, Z256, r##src) \
102 CASE_AVX512_INS_COMMON(Inst, Z128, r##src) \
103 CASE_AVX_INS_COMMON(Inst, , r##src) \
104 CASE_AVX_INS_COMMON(Inst, Y, r##src) \
105 CASE_SSE_INS_COMMON(Inst, r##src)
106
107#define CASE_MASK_UNPCK(Inst, src) \
108 CASE_MASK_INS_COMMON(Inst, Z, r##src) \
109 CASE_MASK_INS_COMMON(Inst, Z256, r##src) \
110 CASE_MASK_INS_COMMON(Inst, Z128, r##src)
111
112#define CASE_MASKZ_UNPCK(Inst, src) \
113 CASE_MASKZ_INS_COMMON(Inst, Z, r##src) \
114 CASE_MASKZ_INS_COMMON(Inst, Z256, r##src) \
115 CASE_MASKZ_INS_COMMON(Inst, Z128, r##src)
116
117#define CASE_SHUF(Inst, suf) \
118 CASE_AVX512_INS_COMMON(Inst, Z, suf) \
119 CASE_AVX512_INS_COMMON(Inst, Z256, suf) \
120 CASE_AVX512_INS_COMMON(Inst, Z128, suf) \
121 CASE_AVX_INS_COMMON(Inst, , suf) \
122 CASE_AVX_INS_COMMON(Inst, Y, suf) \
123 CASE_SSE_INS_COMMON(Inst, suf)
124
125#define CASE_MASK_SHUF(Inst, src) \
126 CASE_MASK_INS_COMMON(Inst, Z, r##src##i) \
127 CASE_MASK_INS_COMMON(Inst, Z256, r##src##i) \
128 CASE_MASK_INS_COMMON(Inst, Z128, r##src##i)
129
130#define CASE_MASKZ_SHUF(Inst, src) \
131 CASE_MASKZ_INS_COMMON(Inst, Z, r##src##i) \
132 CASE_MASKZ_INS_COMMON(Inst, Z256, r##src##i) \
133 CASE_MASKZ_INS_COMMON(Inst, Z128, r##src##i)
134
135#define CASE_VPERMILPI(Inst, src) \
136 CASE_AVX512_INS_COMMON(Inst, Z, src##i) \
137 CASE_AVX512_INS_COMMON(Inst, Z256, src##i) \
138 CASE_AVX512_INS_COMMON(Inst, Z128, src##i) \
139 CASE_AVX_INS_COMMON(Inst, , src##i) \
140 CASE_AVX_INS_COMMON(Inst, Y, src##i)
141
142#define CASE_MASK_VPERMILPI(Inst, src) \
143 CASE_MASK_INS_COMMON(Inst, Z, src##i) \
144 CASE_MASK_INS_COMMON(Inst, Z256, src##i) \
145 CASE_MASK_INS_COMMON(Inst, Z128, src##i)
146
147#define CASE_MASKZ_VPERMILPI(Inst, src) \
148 CASE_MASKZ_INS_COMMON(Inst, Z, src##i) \
149 CASE_MASKZ_INS_COMMON(Inst, Z256, src##i) \
150 CASE_MASKZ_INS_COMMON(Inst, Z128, src##i)
151
152#define CASE_VPERM(Inst, src) \
153 CASE_AVX512_INS_COMMON(Inst, Z, src##i) \
154 CASE_AVX512_INS_COMMON(Inst, Z256, src##i) \
155 CASE_AVX_INS_COMMON(Inst, Y, src##i)
156
157#define CASE_MASK_VPERM(Inst, src) \
158 CASE_MASK_INS_COMMON(Inst, Z, src##i) \
159 CASE_MASK_INS_COMMON(Inst, Z256, src##i)
160
161#define CASE_MASKZ_VPERM(Inst, src) \
162 CASE_MASKZ_INS_COMMON(Inst, Z, src##i) \
163 CASE_MASKZ_INS_COMMON(Inst, Z256, src##i)
164
165#define CASE_VSHUF(Inst, src) \
166 CASE_AVX512_INS_COMMON(SHUFF##Inst, Z, r##src##i) \
167 CASE_AVX512_INS_COMMON(SHUFI##Inst, Z, r##src##i) \
168 CASE_AVX512_INS_COMMON(SHUFF##Inst, Z256, r##src##i) \
169 CASE_AVX512_INS_COMMON(SHUFI##Inst, Z256, r##src##i)
170
171#define CASE_MASK_VSHUF(Inst, src) \
172 CASE_MASK_INS_COMMON(SHUFF##Inst, Z, r##src##i) \
173 CASE_MASK_INS_COMMON(SHUFI##Inst, Z, r##src##i) \
174 CASE_MASK_INS_COMMON(SHUFF##Inst, Z256, r##src##i) \
175 CASE_MASK_INS_COMMON(SHUFI##Inst, Z256, r##src##i)
176
177#define CASE_MASKZ_VSHUF(Inst, src) \
178 CASE_MASKZ_INS_COMMON(SHUFF##Inst, Z, r##src##i) \
179 CASE_MASKZ_INS_COMMON(SHUFI##Inst, Z, r##src##i) \
180 CASE_MASKZ_INS_COMMON(SHUFF##Inst, Z256, r##src##i) \
181 CASE_MASKZ_INS_COMMON(SHUFI##Inst, Z256, r##src##i)
182
183#define CASE_AVX512_FMA(Inst, suf) \
184 CASE_AVX512_INS_COMMON(Inst, Z, suf) \
185 CASE_AVX512_INS_COMMON(Inst, Z256, suf) \
186 CASE_AVX512_INS_COMMON(Inst, Z128, suf)
187
188#define CASE_FMA(Inst, suf) \
189 CASE_AVX512_FMA(Inst, suf) \
190 CASE_AVX_INS_COMMON(Inst, , suf) \
191 CASE_AVX_INS_COMMON(Inst, Y, suf)
192
193#define CASE_FMA_PACKED_REG(Inst) \
194 CASE_FMA(Inst##PD, r) \
195 CASE_FMA(Inst##PS, r)
196
197#define CASE_FMA_PACKED_MEM(Inst) \
198 CASE_FMA(Inst##PD, m) \
199 CASE_FMA(Inst##PS, m) \
200 CASE_AVX512_FMA(Inst##PD, mb) \
201 CASE_AVX512_FMA(Inst##PS, mb)
202
203#define CASE_FMA_SCALAR_REG(Inst) \
204 CASE_AVX_INS_COMMON(Inst##SD, , r) \
205 CASE_AVX_INS_COMMON(Inst##SS, , r) \
206 CASE_AVX_INS_COMMON(Inst##SD, , r_Int) \
207 CASE_AVX_INS_COMMON(Inst##SS, , r_Int) \
208 CASE_AVX_INS_COMMON(Inst##SD, Z, r) \
209 CASE_AVX_INS_COMMON(Inst##SS, Z, r) \
210 CASE_AVX512_INS_COMMON_INT(Inst##SD, Z, r) \
211 CASE_AVX512_INS_COMMON_INT(Inst##SS, Z, r)
212
213#define CASE_FMA_SCALAR_MEM(Inst) \
214 CASE_AVX_INS_COMMON(Inst##SD, , m) \
215 CASE_AVX_INS_COMMON(Inst##SS, , m) \
216 CASE_AVX_INS_COMMON(Inst##SD, , m_Int) \
217 CASE_AVX_INS_COMMON(Inst##SS, , m_Int) \
218 CASE_AVX_INS_COMMON(Inst##SD, Z, m) \
219 CASE_AVX_INS_COMMON(Inst##SS, Z, m) \
220 CASE_AVX512_INS_COMMON_INT(Inst##SD, Z, m) \
221 CASE_AVX512_INS_COMMON_INT(Inst##SS, Z, m)
222
223#define CASE_FMA4(Inst, suf) \
224 CASE_AVX_INS_COMMON(Inst, 4, suf) \
225 CASE_AVX_INS_COMMON(Inst, 4Y, suf)
226
227#define CASE_FMA4_PACKED_RR(Inst) \
228 CASE_FMA4(Inst##PD, rr) \
229 CASE_FMA4(Inst##PS, rr)
230
231#define CASE_FMA4_PACKED_RM(Inst) \
232 CASE_FMA4(Inst##PD, rm) \
233 CASE_FMA4(Inst##PS, rm)
234
235#define CASE_FMA4_PACKED_MR(Inst) \
236 CASE_FMA4(Inst##PD, mr) \
237 CASE_FMA4(Inst##PS, mr)
238
239#define CASE_FMA4_SCALAR_RR(Inst) \
240 CASE_AVX_INS_COMMON(Inst##SD4, , rr) \
241 CASE_AVX_INS_COMMON(Inst##SS4, , rr) \
242 CASE_AVX_INS_COMMON(Inst##SD4, , rr_Int) \
243 CASE_AVX_INS_COMMON(Inst##SS4, , rr_Int)
244
245#define CASE_FMA4_SCALAR_RM(Inst) \
246 CASE_AVX_INS_COMMON(Inst##SD4, , rm) \
247 CASE_AVX_INS_COMMON(Inst##SS4, , rm) \
248 CASE_AVX_INS_COMMON(Inst##SD4, , rm_Int) \
249 CASE_AVX_INS_COMMON(Inst##SS4, , rm_Int)
250
251#define CASE_FMA4_SCALAR_MR(Inst) \
252 CASE_AVX_INS_COMMON(Inst##SD4, , mr) \
253 CASE_AVX_INS_COMMON(Inst##SS4, , mr) \
254 CASE_AVX_INS_COMMON(Inst##SD4, , mr_Int) \
255 CASE_AVX_INS_COMMON(Inst##SS4, , mr_Int)
256
257static unsigned getVectorRegSize(MCRegister Reg) {
258 if (X86II::isZMMReg(Reg))
259 return 512;
260 if (X86II::isYMMReg(Reg))
261 return 256;
262 if (X86II::isXMMReg(Reg))
263 return 128;
264 if (Reg >= X86::MM0 && Reg <= X86::MM7)
265 return 64;
266
267 llvm_unreachable("Unknown vector reg!");
268}
269
270static unsigned getRegOperandNumElts(const MCInst *MI, unsigned ScalarSize,
271 unsigned OperandIndex) {
272 MCRegister OpReg = MI->getOperand(OperandIndex).getReg();
273 return getVectorRegSize(OpReg) / ScalarSize;
274}
275
276static const char *getRegName(MCRegister Reg) {
277 return X86ATTInstPrinter::getRegisterName(Reg);
278}
279
280/// Wraps the destination register name with AVX512 mask/maskz filtering.
281static void printMasking(raw_ostream &OS, const MCInst *MI,
282 const MCInstrInfo &MCII) {
283 const MCInstrDesc &Desc = MCII.get(MI->getOpcode());
284 uint64_t TSFlags = Desc.TSFlags;
285
286 if (!(TSFlags & X86II::EVEX_K))
287 return;
288
289 bool MaskWithZero = (TSFlags & X86II::EVEX_Z);
290 unsigned MaskOp = Desc.getNumDefs();
291
292 if (Desc.getOperandConstraint(MaskOp, MCOI::TIED_TO) != -1)
293 ++MaskOp;
294
295 const char *MaskRegName = getRegName(MI->getOperand(MaskOp).getReg());
296
297 // MASK: zmmX {%kY}
298 OS << " {%" << MaskRegName << "}";
299
300 // MASKZ: zmmX {%kY} {z}
301 if (MaskWithZero)
302 OS << " {z}";
303}
304
305static bool printFMAComments(const MCInst *MI, raw_ostream &OS,
306 const MCInstrInfo &MCII) {
307 const char *Mul1Name = nullptr, *Mul2Name = nullptr, *AccName = nullptr;
308 unsigned NumOperands = MI->getNumOperands();
309 bool RegForm = false;
310 bool Negate = false;
311 StringRef AccStr = "+";
312
313 // The operands for FMA3 instructions without rounding fall into two forms:
314 // dest, src1, src2, src3
315 // dest, src1, mask, src2, src3
316 // Where src3 is either a register or 5 memory address operands. So to find
317 // dest and src1 we can index from the front. To find src2 and src3 we can
318 // index from the end by taking into account memory vs register form when
319 // finding src2.
320
321 // The operands for FMA4 instructions:
322 // dest, src1, src2, src3
323 // Where src2 OR src3 are either a register or 5 memory address operands. So
324 // to find dest and src1 we can index from the front, src2 (reg/mem) follows
325 // and then src3 (reg) will be at the end.
326
327 switch (MI->getOpcode()) {
328 default:
329 return false;
330
331 CASE_FMA4_PACKED_RR(FMADD)
332 CASE_FMA4_SCALAR_RR(FMADD)
333 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
334 [[fallthrough]];
335 CASE_FMA4_PACKED_RM(FMADD)
336 CASE_FMA4_SCALAR_RM(FMADD)
337 Mul2Name = getRegName(MI->getOperand(2).getReg());
338 Mul1Name = getRegName(MI->getOperand(1).getReg());
339 break;
340 CASE_FMA4_PACKED_MR(FMADD)
341 CASE_FMA4_SCALAR_MR(FMADD)
342 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
343 Mul1Name = getRegName(MI->getOperand(1).getReg());
344 break;
345
346 CASE_FMA4_PACKED_RR(FMSUB)
347 CASE_FMA4_SCALAR_RR(FMSUB)
348 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
349 [[fallthrough]];
350 CASE_FMA4_PACKED_RM(FMSUB)
351 CASE_FMA4_SCALAR_RM(FMSUB)
352 Mul2Name = getRegName(MI->getOperand(2).getReg());
353 Mul1Name = getRegName(MI->getOperand(1).getReg());
354 AccStr = "-";
355 break;
356 CASE_FMA4_PACKED_MR(FMSUB)
357 CASE_FMA4_SCALAR_MR(FMSUB)
358 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
359 Mul1Name = getRegName(MI->getOperand(1).getReg());
360 AccStr = "-";
361 break;
362
363 CASE_FMA4_PACKED_RR(FNMADD)
364 CASE_FMA4_SCALAR_RR(FNMADD)
365 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
366 [[fallthrough]];
367 CASE_FMA4_PACKED_RM(FNMADD)
368 CASE_FMA4_SCALAR_RM(FNMADD)
369 Mul2Name = getRegName(MI->getOperand(2).getReg());
370 Mul1Name = getRegName(MI->getOperand(1).getReg());
371 Negate = true;
372 break;
373 CASE_FMA4_PACKED_MR(FNMADD)
374 CASE_FMA4_SCALAR_MR(FNMADD)
375 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
376 Mul1Name = getRegName(MI->getOperand(1).getReg());
377 Negate = true;
378 break;
379
380 CASE_FMA4_PACKED_RR(FNMSUB)
381 CASE_FMA4_SCALAR_RR(FNMSUB)
382 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
383 [[fallthrough]];
384 CASE_FMA4_PACKED_RM(FNMSUB)
385 CASE_FMA4_SCALAR_RM(FNMSUB)
386 Mul2Name = getRegName(MI->getOperand(2).getReg());
387 Mul1Name = getRegName(MI->getOperand(1).getReg());
388 AccStr = "-";
389 Negate = true;
390 break;
391 CASE_FMA4_PACKED_MR(FNMSUB)
392 CASE_FMA4_SCALAR_MR(FNMSUB)
393 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
394 Mul1Name = getRegName(MI->getOperand(1).getReg());
395 AccStr = "-";
396 Negate = true;
397 break;
398
399 CASE_FMA4_PACKED_RR(FMADDSUB)
400 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
401 [[fallthrough]];
402 CASE_FMA4_PACKED_RM(FMADDSUB)
403 Mul2Name = getRegName(MI->getOperand(2).getReg());
404 Mul1Name = getRegName(MI->getOperand(1).getReg());
405 AccStr = "+/-";
406 break;
407 CASE_FMA4_PACKED_MR(FMADDSUB)
408 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
409 Mul1Name = getRegName(MI->getOperand(1).getReg());
410 AccStr = "+/-";
411 break;
412
413 CASE_FMA4_PACKED_RR(FMSUBADD)
414 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
415 [[fallthrough]];
416 CASE_FMA4_PACKED_RM(FMSUBADD)
417 Mul2Name = getRegName(MI->getOperand(2).getReg());
418 Mul1Name = getRegName(MI->getOperand(1).getReg());
419 AccStr = "-/+";
420 break;
421 CASE_FMA4_PACKED_MR(FMSUBADD)
422 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
423 Mul1Name = getRegName(MI->getOperand(1).getReg());
424 AccStr = "-/+";
425 break;
426
427 CASE_FMA_PACKED_REG(FMADD132)
428 CASE_FMA_SCALAR_REG(FMADD132)
429 Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
430 RegForm = true;
431 [[fallthrough]];
432 CASE_FMA_PACKED_MEM(FMADD132)
433 CASE_FMA_SCALAR_MEM(FMADD132)
434 AccName = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
435 Mul1Name = getRegName(MI->getOperand(1).getReg());
436 break;
437
438 CASE_FMA_PACKED_REG(FMADD213)
439 CASE_FMA_SCALAR_REG(FMADD213)
440 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
441 RegForm = true;
442 [[fallthrough]];
443 CASE_FMA_PACKED_MEM(FMADD213)
444 CASE_FMA_SCALAR_MEM(FMADD213)
445 Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
446 Mul2Name = getRegName(MI->getOperand(1).getReg());
447 break;
448
449 CASE_FMA_PACKED_REG(FMADD231)
450 CASE_FMA_SCALAR_REG(FMADD231)
451 Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
452 RegForm = true;
453 [[fallthrough]];
454 CASE_FMA_PACKED_MEM(FMADD231)
455 CASE_FMA_SCALAR_MEM(FMADD231)
456 Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
457 AccName = getRegName(MI->getOperand(1).getReg());
458 break;
459
460 CASE_FMA_PACKED_REG(FMSUB132)
461 CASE_FMA_SCALAR_REG(FMSUB132)
462 Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
463 RegForm = true;
464 [[fallthrough]];
465 CASE_FMA_PACKED_MEM(FMSUB132)
466 CASE_FMA_SCALAR_MEM(FMSUB132)
467 AccName = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
468 Mul1Name = getRegName(MI->getOperand(1).getReg());
469 AccStr = "-";
470 break;
471
472 CASE_FMA_PACKED_REG(FMSUB213)
473 CASE_FMA_SCALAR_REG(FMSUB213)
474 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
475 RegForm = true;
476 [[fallthrough]];
477 CASE_FMA_PACKED_MEM(FMSUB213)
478 CASE_FMA_SCALAR_MEM(FMSUB213)
479 Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
480 Mul2Name = getRegName(MI->getOperand(1).getReg());
481 AccStr = "-";
482 break;
483
484 CASE_FMA_PACKED_REG(FMSUB231)
485 CASE_FMA_SCALAR_REG(FMSUB231)
486 Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
487 RegForm = true;
488 [[fallthrough]];
489 CASE_FMA_PACKED_MEM(FMSUB231)
490 CASE_FMA_SCALAR_MEM(FMSUB231)
491 Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
492 AccName = getRegName(MI->getOperand(1).getReg());
493 AccStr = "-";
494 break;
495
496 CASE_FMA_PACKED_REG(FNMADD132)
497 CASE_FMA_SCALAR_REG(FNMADD132)
498 Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
499 RegForm = true;
500 [[fallthrough]];
501 CASE_FMA_PACKED_MEM(FNMADD132)
502 CASE_FMA_SCALAR_MEM(FNMADD132)
503 AccName = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
504 Mul1Name = getRegName(MI->getOperand(1).getReg());
505 Negate = true;
506 break;
507
508 CASE_FMA_PACKED_REG(FNMADD213)
509 CASE_FMA_SCALAR_REG(FNMADD213)
510 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
511 RegForm = true;
512 [[fallthrough]];
513 CASE_FMA_PACKED_MEM(FNMADD213)
514 CASE_FMA_SCALAR_MEM(FNMADD213)
515 Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
516 Mul2Name = getRegName(MI->getOperand(1).getReg());
517 Negate = true;
518 break;
519
520 CASE_FMA_PACKED_REG(FNMADD231)
521 CASE_FMA_SCALAR_REG(FNMADD231)
522 Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
523 RegForm = true;
524 [[fallthrough]];
525 CASE_FMA_PACKED_MEM(FNMADD231)
526 CASE_FMA_SCALAR_MEM(FNMADD231)
527 Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
528 AccName = getRegName(MI->getOperand(1).getReg());
529 Negate = true;
530 break;
531
532 CASE_FMA_PACKED_REG(FNMSUB132)
533 CASE_FMA_SCALAR_REG(FNMSUB132)
534 Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
535 RegForm = true;
536 [[fallthrough]];
537 CASE_FMA_PACKED_MEM(FNMSUB132)
538 CASE_FMA_SCALAR_MEM(FNMSUB132)
539 AccName = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
540 Mul1Name = getRegName(MI->getOperand(1).getReg());
541 AccStr = "-";
542 Negate = true;
543 break;
544
545 CASE_FMA_PACKED_REG(FNMSUB213)
546 CASE_FMA_SCALAR_REG(FNMSUB213)
547 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
548 RegForm = true;
549 [[fallthrough]];
550 CASE_FMA_PACKED_MEM(FNMSUB213)
551 CASE_FMA_SCALAR_MEM(FNMSUB213)
552 Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
553 Mul2Name = getRegName(MI->getOperand(1).getReg());
554 AccStr = "-";
555 Negate = true;
556 break;
557
558 CASE_FMA_PACKED_REG(FNMSUB231)
559 CASE_FMA_SCALAR_REG(FNMSUB231)
560 Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
561 RegForm = true;
562 [[fallthrough]];
563 CASE_FMA_PACKED_MEM(FNMSUB231)
564 CASE_FMA_SCALAR_MEM(FNMSUB231)
565 Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
566 AccName = getRegName(MI->getOperand(1).getReg());
567 AccStr = "-";
568 Negate = true;
569 break;
570
571 CASE_FMA_PACKED_REG(FMADDSUB132)
572 Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
573 RegForm = true;
574 [[fallthrough]];
575 CASE_FMA_PACKED_MEM(FMADDSUB132)
576 AccName = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
577 Mul1Name = getRegName(MI->getOperand(1).getReg());
578 AccStr = "+/-";
579 break;
580
581 CASE_FMA_PACKED_REG(FMADDSUB213)
582 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
583 RegForm = true;
584 [[fallthrough]];
585 CASE_FMA_PACKED_MEM(FMADDSUB213)
586 Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
587 Mul2Name = getRegName(MI->getOperand(1).getReg());
588 AccStr = "+/-";
589 break;
590
591 CASE_FMA_PACKED_REG(FMADDSUB231)
592 Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
593 RegForm = true;
594 [[fallthrough]];
595 CASE_FMA_PACKED_MEM(FMADDSUB231)
596 Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
597 AccName = getRegName(MI->getOperand(1).getReg());
598 AccStr = "+/-";
599 break;
600
601 CASE_FMA_PACKED_REG(FMSUBADD132)
602 Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
603 RegForm = true;
604 [[fallthrough]];
605 CASE_FMA_PACKED_MEM(FMSUBADD132)
606 AccName = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
607 Mul1Name = getRegName(MI->getOperand(1).getReg());
608 AccStr = "-/+";
609 break;
610
611 CASE_FMA_PACKED_REG(FMSUBADD213)
612 AccName = getRegName(MI->getOperand(NumOperands - 1).getReg());
613 RegForm = true;
614 [[fallthrough]];
615 CASE_FMA_PACKED_MEM(FMSUBADD213)
616 Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
617 Mul2Name = getRegName(MI->getOperand(1).getReg());
618 AccStr = "-/+";
619 break;
620
621 CASE_FMA_PACKED_REG(FMSUBADD231)
622 Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
623 RegForm = true;
624 [[fallthrough]];
625 CASE_FMA_PACKED_MEM(FMSUBADD231)
626 Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
627 AccName = getRegName(MI->getOperand(1).getReg());
628 AccStr = "-/+";
629 break;
630 }
631
632 const char *DestName = getRegName(MI->getOperand(0).getReg());
633
634 if (!Mul1Name) Mul1Name = "mem";
635 if (!Mul2Name) Mul2Name = "mem";
636 if (!AccName) AccName = "mem";
637
638 OS << DestName;
639 printMasking(OS, MI, MCII);
640 OS << " = ";
641
642 if (Negate)
643 OS << '-';
644
645 OS << '(' << Mul1Name << " * " << Mul2Name << ") " << AccStr << ' '
646 << AccName << '\n';
647
648 return true;
649}
650
651// This table is indexed by the imm8 binary function specified in a
652// vpternlog{d,q} instruction. The symbols {a,b,c} correspond to the three
653// inputs to the binary function. This table was taken from
654// https://gist.github.com/dougallj/81a80cd381988466c4e1c4889ecac95b#file-2-x86-base-txt
655// with slight massaging.
656constexpr StringLiteral TernlogFunctions[] = {
657 "0",
658 "~(a | b | c)",
659 "c & ~(a | b)",
660 "~(a | b)",
661 "b & ~(a | c)",
662 "~(a | c)",
663 "~a & (b ^ c)",
664 "~(a | (b & c))",
665 "b & c & ~a",
666 "~(a | (b ^ c))",
667 "c & ~a",
668 "~a & (c | ~b)",
669 "b & ~a",
670 "~a & (b | ~c)",
671 "~a & (b | c)",
672 "~a",
673 "a & ~(b | c)",
674 "~(b | c)",
675 "~b & (a ^ c)",
676 "~((a & c) | b)",
677 "~c & (a ^ b)",
678 "~((a & b) | c)",
679 "a ^ ((a & b) | (b ^ c))",
680 "(a & (b ^ c)) ^ ~(b & c)",
681 "(a ^ b) & (a ^ c)",
682 "~((a & b) | (b ^ c))",
683 "a ^ ((a & b) | c)",
684 "(a & c) ^ (c | ~b)",
685 "a ^ ((a & c) | b)",
686 "(a & b) ^ (b | ~c)",
687 "a ^ (b | c)",
688 "~(a & (b | c))",
689 "a & c & ~b",
690 "~(b | (a ^ c))",
691 "c & ~b",
692 "~b & (c | ~a)",
693 "(a ^ b) & (b ^ c)",
694 "~((a & b) | (a ^ c))",
695 "b ^ ((a & b) | c)",
696 "(b & c) ^ (c | ~a)",
697 "c & (a ^ b)",
698 "(a | b) ^ ((a & b) | ~c)",
699 "c & ~(a & b)",
700 "(c & (a ^ b)) | ~(a | b)",
701 "(b | c) & (a ^ b)",
702 "a ^ (b | ~c)",
703 "(a & b) ^ (b | c)",
704 "(c & ~b) | ~a",
705 "a & ~b",
706 "~b & (a | ~c)",
707 "~b & (a | c)",
708 "~b",
709 "b ^ (a | (b & c))",
710 "(a & b) ^ (a | ~c)",
711 "b ^ (a | c)",
712 "~(b & (a | c))",
713 "(a | c) & (a ^ b)",
714 "b ^ (a | ~c)",
715 "(a & b) ^ (a | c)",
716 "(c & ~a) | ~b",
717 "a ^ b",
718 "~(a | c) | (a ^ b)",
719 "(c & ~a) | (a ^ b)",
720 "~(a & b)",
721 "a & b & ~c",
722 "~(c | (a ^ b))",
723 "(a ^ c) & (b ^ c)",
724 "~((a & c) | (a ^ b))",
725 "b & ~c",
726 "~c & (b | ~a)",
727 "c ^ ((a & c) | b)",
728 "(b & c) ^ (b | ~a)",
729 "b & (a ^ c)",
730 "(a | c) ^ ((a & c) | ~b)",
731 "(b | c) & (a ^ c)",
732 "a ^ (c | ~b)",
733 "b & ~(a & c)",
734 "(b & (a ^ c)) | ~(a | c)",
735 "(a & c) ^ (b | c)",
736 "(b & ~c) | ~a",
737 "a & ~c",
738 "~c & (a | ~b)",
739 "c ^ (a | (b & c))",
740 "(a & c) ^ (a | ~b)",
741 "~c & (a | b)",
742 "~c",
743 "c ^ (a | b)",
744 "~(c & (a | b))",
745 "(a | b) & (a ^ c)",
746 "c ^ (a | ~b)",
747 "a ^ c",
748 "~(a | b) | (a ^ c)",
749 "(a & c) ^ (a | b)",
750 "(b & ~a) | ~c",
751 "(b & ~a) | (a ^ c)",
752 "~(a & c)",
753 "a & (b ^ c)",
754 "~(b ^ c) ^ (a | (b & c))",
755 "(a | c) & (b ^ c)",
756 "b ^ (c | ~a)",
757 "(a | b) & (b ^ c)",
758 "c ^ (b | ~a)",
759 "b ^ c",
760 "~(a | b) | (b ^ c)",
761 "(a | b) & (c ^ (a & b))",
762 "b ^ c ^ ~a",
763 "c ^ (a & b)",
764 "~(a | b) | (c ^ (a & b))",
765 "b ^ (a & c)",
766 "~(a | c) | (b ^ (a & c))",
767 "(b & ~a) | (b ^ c)",
768 "~a | (b ^ c)",
769 "a & ~(b & c)",
770 "(a & (b ^ c)) | ~(b | c)",
771 "(b & c) ^ (a | c)",
772 "(a & ~c) | ~b",
773 "(b & c) ^ (a | b)",
774 "(a & ~b) | ~c",
775 "(a & ~b) | (b ^ c)",
776 "~(b & c)",
777 "a ^ (b & c)",
778 "~(b | c) | (a ^ (b & c))",
779 "(a & ~b) | (a ^ c)",
780 "~b | (a ^ c)",
781 "(a & ~c) | (a ^ b)",
782 "~c | (a ^ b)",
783 "(a ^ b) | (a ^ c)",
784 "~(a & b & c)",
785 "a & b & c",
786 "~((a ^ b) | (a ^ c))",
787 "c & ~(a ^ b)",
788 "~(a ^ b) & (c | ~a)",
789 "b & ~(a ^ c)",
790 "~(a ^ c) & (b | ~a)",
791 "(b | c) & (a ^ b ^ c)",
792 "(b & c) ^ ~a",
793 "b & c",
794 "~(b ^ c) & (b | ~a)",
795 "c & (b | ~a)",
796 "~((b & c) ^ (a | b))",
797 "b & (c | ~a)",
798 "~((b & c) ^ (a | c))",
799 "a ^ ((a ^ b) | (a ^ c))",
800 "(b & c) | ~a",
801 "a & ~(b ^ c)",
802 "~(b ^ c) & (a | ~b)",
803 "(a | c) & (a ^ b ^ c)",
804 "(a & c) ^ ~b",
805 "(a | b) & (a ^ b ^ c)",
806 "(a & b) ^ ~c",
807 "a ^ b ^ c",
808 "~(a | b) | (a ^ b ^ c)",
809 "~(b ^ c) & (a | b)",
810 "~(b ^ c)",
811 "c ^ (a & ~b)",
812 "~((a | b) & (b ^ c))",
813 "b ^ (a & ~c)",
814 "~((a | c) & (b ^ c))",
815 "(b & c) | (a ^ (b | c))",
816 "~(a & (b ^ c))",
817 "a & c",
818 "~(a ^ c) & (a | ~b)",
819 "c & (a | ~b)",
820 "~((a & c) ^ (a | b))",
821 "~(a ^ c) & (a | b)",
822 "~(a ^ c)",
823 "c ^ (b & ~a)",
824 "~((a | b) & (a ^ c))",
825 "c & (a | b)",
826 "~c ^ (a | b)",
827 "c",
828 "c | ~(a | b)",
829 "b ^ (a & (b ^ c))",
830 "(b & c) | ~(a ^ c)",
831 "(b & ~a) | c",
832 "c | ~a",
833 "a & (c | ~b)",
834 "~((a & c) ^ (b | c))",
835 "a ^ ((a ^ c) & (b ^ c))",
836 "(a & c) | ~b",
837 "a ^ (b & ~c)",
838 "~((b | c) & (a ^ c))",
839 "(a & c) | (a ^ b ^ c)",
840 "~(b & (a ^ c))",
841 "a ^ (b & (a ^ c))",
842 "(a & c) | ~(b ^ c)",
843 "(a & ~b) | c",
844 "c | ~b",
845 "(a & c) | (a ^ b)",
846 "~((a ^ c) & (b ^ c))",
847 "c | (a ^ b)",
848 "c | ~(a & b)",
849 "a & b",
850 "~(a ^ b) & (a | ~c)",
851 "~(a ^ b) & (a | c)",
852 "~(a ^ b)",
853 "b & (a | ~c)",
854 "~((a & b) ^ (a | c))",
855 "b ^ (c & ~a)",
856 "~((a | c) & (a ^ b))",
857 "b & (a | c)",
858 "~b ^ (a | c)",
859 "c ^ (a & (b ^ c))",
860 "(b & c) | ~(a ^ b)",
861 "b",
862 "b | ~(a | c)",
863 "(c & ~a) | b",
864 "b | ~a",
865 "a & (b | ~c)",
866 "~((a & b) ^ (b | c))",
867 "a ^ (c & ~b)",
868 "~((b | c) & (a ^ b))",
869 "a ^ ((a ^ b) & (b ^ c))",
870 "(a & b) | ~c",
871 "(a & b) | (a ^ b ^ c)",
872 "~(c & (a ^ b))",
873 "a ^ (c & (a ^ b))",
874 "(a & b) | ~(b ^ c)",
875 "(a & b) | (a ^ c)",
876 "~((a ^ b) & (b ^ c))",
877 "(a & ~c) | b",
878 "b | ~c",
879 "b | (a ^ c)",
880 "b | ~(a & c)",
881 "a & (b | c)",
882 "~a ^ (b | c)",
883 "c ^ (b & (a ^ c))",
884 "(a & c) | ~(a ^ b)",
885 "b ^ (c & (a ^ b))",
886 "(a & b) | ~(a ^ c)",
887 "(a & b) | (b ^ c)",
888 "~((a ^ b) & (a ^ c))",
889 "(a | b) & ((a & b) | c)",
890 "(a & b) | (b ^ c ^ ~a)",
891 "(a & b) | c",
892 "c | ~(a ^ b)",
893 "(a & c) | b",
894 "b | ~(a ^ c)",
895 "b | c",
896 "~a | b | c",
897 "a",
898 "a | ~(b | c)",
899 "a | (c & ~b)",
900 "a | ~b",
901 "a | (b & ~c)",
902 "a | ~c",
903 "a | (b ^ c)",
904 "a | ~(b & c)",
905 "a | (b & c)",
906 "a | ~(b ^ c)",
907 "a | c",
908 "~b | a | c",
909 "a | b",
910 "~c | a | b",
911 "a | b | c",
912 "-1",
913};
914
915static bool printPTERNLOGComments(const MCInst *MI, raw_ostream &OS,
916 const MCInstrInfo &MCII) {
917 unsigned NumOperands = MI->getNumOperands();
918
919 int Src2Idx;
920 int Src3Idx;
921 switch (MI->getOpcode()) {
922 // dest, src1, src2, src3, tbl
923 // dest, src1, mask, src2, src3, tbl
924 CASE_PTERNLOG(PTERNLOGD, r)
925 CASE_PTERNLOG(PTERNLOGQ, r)
926 Src2Idx = NumOperands - 3;
927 Src3Idx = NumOperands - 2;
928 break;
929
930 // dest, src1, src2, memory, tbl
931 // dest, src1, mask, src2, memory, tbl
932 CASE_PTERNLOG(PTERNLOGD, m)
933 CASE_PTERNLOG(PTERNLOGQ, m)
934 Src2Idx = NumOperands - 7;
935 Src3Idx = -1;
936 break;
937
938 CASE_PTERNLOG(PTERNLOGD, mb)
939 Src2Idx = NumOperands - 7;
940 Src3Idx = -2;
941 break;
942
943 CASE_PTERNLOG(PTERNLOGQ, mb)
944 Src2Idx = NumOperands - 7;
945 Src3Idx = -3;
946 break;
947
948 default:
949 return false;
950 }
951 StringRef DestName = getRegName(MI->getOperand(0).getReg());
952 StringRef Src1Name = getRegName(MI->getOperand(1).getReg());
953 StringRef Src2Name = getRegName(MI->getOperand(Src2Idx).getReg());
954 StringRef Src3Name;
955 switch (Src3Idx) {
956 case -1:
957 Src3Name = "mem";
958 break;
959 case -2:
960 Src3Name = "m32bcst";
961 break;
962 case -3:
963 Src3Name = "m64bcst";
964 break;
965 default:
966 Src3Name = getRegName(MI->getOperand(Src3Idx).getReg());
967 break;
968 }
969 uint8_t TruthTable = MI->getOperand(NumOperands - 1).getImm();
970
971 StringRef SrcNames[] = {Src1Name, Src2Name, Src3Name};
972
973 OS << DestName;
974 printMasking(OS, MI, MCII);
975 OS << " = ";
976
977 static_assert(std::size(TernlogFunctions) == 256);
978 std::string_view BooleanFunction = TernlogFunctions[TruthTable];
979
980 while (!BooleanFunction.empty()) {
981 // Print the expression up to the next symbol.
982 size_t SymbolOffset = BooleanFunction.find_first_of("abc");
983 OS << BooleanFunction.substr(0, SymbolOffset);
984 if (SymbolOffset == std::string_view::npos) {
985 // No more symbols, that means we just printed everything.
986 break;
987 }
988 // Let's replace {a,b,c} with Src{1,2,3}Name.
989 char Symbol = BooleanFunction[SymbolOffset];
990 OS << SrcNames[Symbol - 'a'];
991 // Consume the part of the expression we handled.
992 BooleanFunction.remove_prefix(SymbolOffset + 1);
993 }
994 OS << '\n';
995 return true;
996}
997
998static bool printFPCLASSComments(const MCInst *MI, raw_ostream &OS,
999 const MCInstrInfo &MCII) {
1000 unsigned NumOperands = MI->getNumOperands();
1001 int SrcIdx;
1002 switch (MI->getOpcode()) {
1003 CASE_FPCLASS_PACKED(FPCLASSBF16, r)
1004 CASE_FPCLASS_PACKED(FPCLASSPH, r)
1005 CASE_FPCLASS_PACKED(FPCLASSPS, r)
1006 CASE_FPCLASS_PACKED(FPCLASSPD, r)
1007 CASE_FPCLASS_SCALAR(FPCLASSSH, r)
1008 CASE_FPCLASS_SCALAR(FPCLASSSS, r)
1009 CASE_FPCLASS_SCALAR(FPCLASSSD, r) {
1010 SrcIdx = NumOperands - 2;
1011 break;
1012 }
1013 CASE_FPCLASS_PACKED_MEM(FPCLASSBF16)
1014 CASE_FPCLASS_PACKED_MEM(FPCLASSPH)
1015 CASE_FPCLASS_PACKED_MEM(FPCLASSPS)
1016 CASE_FPCLASS_PACKED_MEM(FPCLASSPD)
1017 CASE_FPCLASS_SCALAR(FPCLASSSH, m)
1018 CASE_FPCLASS_SCALAR(FPCLASSSS, m)
1019 CASE_FPCLASS_SCALAR(FPCLASSSD, m) {
1020 SrcIdx = -1;
1021 break;
1022 }
1023 default:
1024 return false;
1025 }
1026 StringRef DestName = getRegName(MI->getOperand(0).getReg());
1027 StringRef SrcName =
1028 SrcIdx != -1 ? getRegName(MI->getOperand(SrcIdx).getReg()) : "mem";
1029
1030 OS << DestName;
1031 printMasking(OS, MI, MCII);
1032 OS << " = ";
1033
1034 uint8_t Categories = MI->getOperand(NumOperands - 1).getImm();
1035 if (Categories == 0) {
1036 OS << "false";
1037 } else {
1038 static constexpr StringLiteral CategoryNames[] = {
1039 "QuietNaN",
1040 "PositiveZero",
1041 "NegativeZero",
1042 "PositiveInfinity",
1043 "NegativeInfinity",
1044 "Subnormal",
1045 "Negative",
1046 "SignalingNaN",
1047 };
1048 bool Conjoin = false;
1049 for (size_t I = 0, E = std::size(CategoryNames); I != E; ++I) {
1050 if (Categories & (1 << I)) {
1051 if (Conjoin)
1052 OS << " | ";
1053 Conjoin = true;
1054 OS << "is" << CategoryNames[I] << '(' << SrcName << ')';
1055 }
1056 }
1057 }
1058 OS << '\n';
1059 return true;
1060}
1061
1062//===----------------------------------------------------------------------===//
1063// Top Level Entrypoint
1064//===----------------------------------------------------------------------===//
1065
1066/// EmitAnyX86InstComments - This function decodes x86 instructions and prints
1067/// newline terminated strings to the specified string if desired. This
1068/// information is shown in disassembly dumps when verbose assembly is enabled.
1069bool llvm::EmitAnyX86InstComments(const MCInst *MI, raw_ostream &OS,
1070 const MCInstrInfo &MCII) {
1071 // If this is a shuffle operation, the switch should fill in this state.
1072 SmallVector<int, 8> ShuffleMask;
1073 const char *DestName = nullptr, *Src1Name = nullptr, *Src2Name = nullptr;
1074 unsigned NumOperands = MI->getNumOperands();
1075 bool RegForm = false;
1076
1077 if (printFMAComments(MI, OS, MCII))
1078 return true;
1079
1080 if (printPTERNLOGComments(MI, OS, MCII))
1081 return true;
1082
1083 if (printFPCLASSComments(MI, OS, MCII))
1084 return true;
1085
1086 switch (MI->getOpcode()) {
1087 default:
1088 // Not an instruction for which we can decode comments.
1089 return false;
1090
1091 case X86::BLENDPDrri:
1092 case X86::VBLENDPDrri:
1093 case X86::VBLENDPDYrri:
1094 Src2Name = getRegName(MI->getOperand(2).getReg());
1095 [[fallthrough]];
1096 case X86::BLENDPDrmi:
1097 case X86::VBLENDPDrmi:
1098 case X86::VBLENDPDYrmi:
1099 if (MI->getOperand(NumOperands - 1).isImm())
1100 DecodeBLENDMask(getRegOperandNumElts(MI, 64, 0),
1101 MI->getOperand(NumOperands - 1).getImm(),
1102 ShuffleMask);
1103 Src1Name = getRegName(MI->getOperand(1).getReg());
1104 DestName = getRegName(MI->getOperand(0).getReg());
1105 break;
1106
1107 case X86::BLENDPSrri:
1108 case X86::VBLENDPSrri:
1109 case X86::VBLENDPSYrri:
1110 Src2Name = getRegName(MI->getOperand(2).getReg());
1111 [[fallthrough]];
1112 case X86::BLENDPSrmi:
1113 case X86::VBLENDPSrmi:
1114 case X86::VBLENDPSYrmi:
1115 if (MI->getOperand(NumOperands - 1).isImm())
1116 DecodeBLENDMask(getRegOperandNumElts(MI, 32, 0),
1117 MI->getOperand(NumOperands - 1).getImm(),
1118 ShuffleMask);
1119 Src1Name = getRegName(MI->getOperand(1).getReg());
1120 DestName = getRegName(MI->getOperand(0).getReg());
1121 break;
1122
1123 case X86::PBLENDWrri:
1124 case X86::VPBLENDWrri:
1125 case X86::VPBLENDWYrri:
1126 Src2Name = getRegName(MI->getOperand(2).getReg());
1127 [[fallthrough]];
1128 case X86::PBLENDWrmi:
1129 case X86::VPBLENDWrmi:
1130 case X86::VPBLENDWYrmi:
1131 if (MI->getOperand(NumOperands - 1).isImm())
1132 DecodeBLENDMask(getRegOperandNumElts(MI, 16, 0),
1133 MI->getOperand(NumOperands - 1).getImm(),
1134 ShuffleMask);
1135 Src1Name = getRegName(MI->getOperand(1).getReg());
1136 DestName = getRegName(MI->getOperand(0).getReg());
1137 break;
1138
1139 case X86::VPBLENDDrri:
1140 case X86::VPBLENDDYrri:
1141 Src2Name = getRegName(MI->getOperand(2).getReg());
1142 [[fallthrough]];
1143 case X86::VPBLENDDrmi:
1144 case X86::VPBLENDDYrmi:
1145 if (MI->getOperand(NumOperands - 1).isImm())
1146 DecodeBLENDMask(getRegOperandNumElts(MI, 32, 0),
1147 MI->getOperand(NumOperands - 1).getImm(),
1148 ShuffleMask);
1149 Src1Name = getRegName(MI->getOperand(1).getReg());
1150 DestName = getRegName(MI->getOperand(0).getReg());
1151 break;
1152
1153 case X86::INSERTPSrri:
1154 case X86::VINSERTPSrri:
1155 case X86::VINSERTPSZrri:
1156 Src2Name = getRegName(MI->getOperand(2).getReg());
1157 DestName = getRegName(MI->getOperand(0).getReg());
1158 Src1Name = getRegName(MI->getOperand(1).getReg());
1159 if (MI->getOperand(NumOperands - 1).isImm())
1160 DecodeINSERTPSMask(MI->getOperand(NumOperands - 1).getImm(), ShuffleMask,
1161 /*SrcIsMem=*/false);
1162 break;
1163
1164 case X86::INSERTPSrmi:
1165 case X86::VINSERTPSrmi:
1166 case X86::VINSERTPSZrmi:
1167 DestName = getRegName(MI->getOperand(0).getReg());
1168 Src1Name = getRegName(MI->getOperand(1).getReg());
1169 if (MI->getOperand(NumOperands - 1).isImm())
1170 DecodeINSERTPSMask(MI->getOperand(NumOperands - 1).getImm(), ShuffleMask,
1171 /*SrcIsMem=*/true);
1172 break;
1173
1174 case X86::MOVLHPSrr:
1175 case X86::VMOVLHPSrr:
1176 case X86::VMOVLHPSZrr:
1177 Src2Name = getRegName(MI->getOperand(2).getReg());
1178 Src1Name = getRegName(MI->getOperand(1).getReg());
1179 DestName = getRegName(MI->getOperand(0).getReg());
1180 DecodeMOVLHPSMask(2, ShuffleMask);
1181 break;
1182
1183 case X86::MOVHLPSrr:
1184 case X86::VMOVHLPSrr:
1185 case X86::VMOVHLPSZrr:
1186 Src2Name = getRegName(MI->getOperand(2).getReg());
1187 Src1Name = getRegName(MI->getOperand(1).getReg());
1188 DestName = getRegName(MI->getOperand(0).getReg());
1189 DecodeMOVHLPSMask(2, ShuffleMask);
1190 break;
1191
1192 case X86::MOVHPDrm:
1193 case X86::VMOVHPDrm:
1194 case X86::VMOVHPDZ128rm:
1195 Src1Name = getRegName(MI->getOperand(1).getReg());
1196 DestName = getRegName(MI->getOperand(0).getReg());
1197 DecodeInsertElementMask(2, 1, 1, ShuffleMask);
1198 break;
1199
1200 case X86::MOVHPSrm:
1201 case X86::VMOVHPSrm:
1202 case X86::VMOVHPSZ128rm:
1203 Src1Name = getRegName(MI->getOperand(1).getReg());
1204 DestName = getRegName(MI->getOperand(0).getReg());
1205 DecodeInsertElementMask(4, 2, 2, ShuffleMask);
1206 break;
1207
1208 case X86::MOVLPDrm:
1209 case X86::VMOVLPDrm:
1210 case X86::VMOVLPDZ128rm:
1211 Src1Name = getRegName(MI->getOperand(1).getReg());
1212 DestName = getRegName(MI->getOperand(0).getReg());
1213 DecodeInsertElementMask(2, 0, 1, ShuffleMask);
1214 break;
1215
1216 case X86::MOVLPSrm:
1217 case X86::VMOVLPSrm:
1218 case X86::VMOVLPSZ128rm:
1219 Src1Name = getRegName(MI->getOperand(1).getReg());
1220 DestName = getRegName(MI->getOperand(0).getReg());
1221 DecodeInsertElementMask(4, 0, 2, ShuffleMask);
1222 break;
1223
1224 CASE_MOVDUP(MOVSLDUP, r)
1225 Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1226 [[fallthrough]];
1227
1228 CASE_MOVDUP(MOVSLDUP, m)
1229 DestName = getRegName(MI->getOperand(0).getReg());
1230 DecodeMOVSLDUPMask(getRegOperandNumElts(MI, 32, 0), ShuffleMask);
1231 break;
1232
1233 CASE_MOVDUP(MOVSHDUP, r)
1234 Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1235 [[fallthrough]];
1236
1237 CASE_MOVDUP(MOVSHDUP, m)
1238 DestName = getRegName(MI->getOperand(0).getReg());
1239 DecodeMOVSHDUPMask(getRegOperandNumElts(MI, 32, 0), ShuffleMask);
1240 break;
1241
1242 CASE_MOVDUP(MOVDDUP, r)
1243 Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1244 [[fallthrough]];
1245
1246 CASE_MOVDUP(MOVDDUP, m)
1247 DestName = getRegName(MI->getOperand(0).getReg());
1248 DecodeMOVDDUPMask(getRegOperandNumElts(MI, 64, 0), ShuffleMask);
1249 break;
1250
1251 case X86::PSLLDQri:
1252 case X86::VPSLLDQri:
1253 case X86::VPSLLDQYri:
1254 case X86::VPSLLDQZ128ri:
1255 case X86::VPSLLDQZ256ri:
1256 case X86::VPSLLDQZri:
1257 Src1Name = getRegName(MI->getOperand(1).getReg());
1258 [[fallthrough]];
1259 case X86::VPSLLDQZ128mi:
1260 case X86::VPSLLDQZ256mi:
1261 case X86::VPSLLDQZmi:
1262 DestName = getRegName(MI->getOperand(0).getReg());
1263 if (MI->getOperand(NumOperands - 1).isImm())
1264 DecodePSLLDQMask(getRegOperandNumElts(MI, 8, 0),
1265 MI->getOperand(NumOperands - 1).getImm(),
1266 ShuffleMask);
1267 break;
1268
1269 case X86::PSRLDQri:
1270 case X86::VPSRLDQri:
1271 case X86::VPSRLDQYri:
1272 case X86::VPSRLDQZ128ri:
1273 case X86::VPSRLDQZ256ri:
1274 case X86::VPSRLDQZri:
1275 Src1Name = getRegName(MI->getOperand(1).getReg());
1276 [[fallthrough]];
1277 case X86::VPSRLDQZ128mi:
1278 case X86::VPSRLDQZ256mi:
1279 case X86::VPSRLDQZmi:
1280 DestName = getRegName(MI->getOperand(0).getReg());
1281 if (MI->getOperand(NumOperands - 1).isImm())
1282 DecodePSRLDQMask(getRegOperandNumElts(MI, 8, 0),
1283 MI->getOperand(NumOperands - 1).getImm(),
1284 ShuffleMask);
1285 break;
1286
1287 CASE_SHUF(PALIGNR, rri)
1288 Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1289 RegForm = true;
1290 [[fallthrough]];
1291
1292 CASE_SHUF(PALIGNR, rmi)
1293 Src2Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg());
1294 DestName = getRegName(MI->getOperand(0).getReg());
1295 if (MI->getOperand(NumOperands - 1).isImm())
1296 DecodePALIGNRMask(getRegOperandNumElts(MI, 8, 0),
1297 MI->getOperand(NumOperands - 1).getImm(),
1298 ShuffleMask);
1299 break;
1300
1301 CASE_AVX512_INS_COMMON(ALIGNQ, Z, rri)
1302 CASE_AVX512_INS_COMMON(ALIGNQ, Z256, rri)
1303 CASE_AVX512_INS_COMMON(ALIGNQ, Z128, rri)
1304 Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1305 RegForm = true;
1306 [[fallthrough]];
1307
1308 CASE_AVX512_INS_COMMON(ALIGNQ, Z, rmi)
1309 CASE_AVX512_INS_COMMON(ALIGNQ, Z256, rmi)
1310 CASE_AVX512_INS_COMMON(ALIGNQ, Z128, rmi)
1311 Src2Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg());
1312 DestName = getRegName(MI->getOperand(0).getReg());
1313 if (MI->getOperand(NumOperands - 1).isImm())
1314 DecodeVALIGNMask(getRegOperandNumElts(MI, 64, 0),
1315 MI->getOperand(NumOperands - 1).getImm(),
1316 ShuffleMask);
1317 break;
1318
1319 CASE_AVX512_INS_COMMON(ALIGND, Z, rri)
1320 CASE_AVX512_INS_COMMON(ALIGND, Z256, rri)
1321 CASE_AVX512_INS_COMMON(ALIGND, Z128, rri)
1322 Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1323 RegForm = true;
1324 [[fallthrough]];
1325
1326 CASE_AVX512_INS_COMMON(ALIGND, Z, rmi)
1327 CASE_AVX512_INS_COMMON(ALIGND, Z256, rmi)
1328 CASE_AVX512_INS_COMMON(ALIGND, Z128, rmi)
1329 Src2Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg());
1330 DestName = getRegName(MI->getOperand(0).getReg());
1331 if (MI->getOperand(NumOperands - 1).isImm())
1332 DecodeVALIGNMask(getRegOperandNumElts(MI, 32, 0),
1333 MI->getOperand(NumOperands - 1).getImm(),
1334 ShuffleMask);
1335 break;
1336
1337 CASE_SHUF(PSHUFD, ri)
1338 Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1339 [[fallthrough]];
1340
1341 CASE_SHUF(PSHUFD, mi)
1342 DestName = getRegName(MI->getOperand(0).getReg());
1343 if (MI->getOperand(NumOperands - 1).isImm())
1344 DecodePSHUFMask(getRegOperandNumElts(MI, 32, 0), 32,
1345 MI->getOperand(NumOperands - 1).getImm(),
1346 ShuffleMask);
1347 break;
1348
1349 CASE_SHUF(PSHUFHW, ri)
1350 Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1351 [[fallthrough]];
1352
1353 CASE_SHUF(PSHUFHW, mi)
1354 DestName = getRegName(MI->getOperand(0).getReg());
1355 if (MI->getOperand(NumOperands - 1).isImm())
1356 DecodePSHUFHWMask(getRegOperandNumElts(MI, 16, 0),
1357 MI->getOperand(NumOperands - 1).getImm(),
1358 ShuffleMask);
1359 break;
1360
1361 CASE_SHUF(PSHUFLW, ri)
1362 Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1363 [[fallthrough]];
1364
1365 CASE_SHUF(PSHUFLW, mi)
1366 DestName = getRegName(MI->getOperand(0).getReg());
1367 if (MI->getOperand(NumOperands - 1).isImm())
1368 DecodePSHUFLWMask(getRegOperandNumElts(MI, 16, 0),
1369 MI->getOperand(NumOperands - 1).getImm(),
1370 ShuffleMask);
1371 break;
1372
1373 case X86::MMX_PSHUFWri:
1374 Src1Name = getRegName(MI->getOperand(1).getReg());
1375 [[fallthrough]];
1376
1377 case X86::MMX_PSHUFWmi:
1378 DestName = getRegName(MI->getOperand(0).getReg());
1379 if (MI->getOperand(NumOperands - 1).isImm())
1380 DecodePSHUFMask(4, 16, MI->getOperand(NumOperands - 1).getImm(),
1381 ShuffleMask);
1382 break;
1383
1384 case X86::PSWAPDrr:
1385 Src1Name = getRegName(MI->getOperand(1).getReg());
1386 [[fallthrough]];
1387
1388 case X86::PSWAPDrm:
1389 DestName = getRegName(MI->getOperand(0).getReg());
1390 DecodePSWAPMask(2, ShuffleMask);
1391 break;
1392
1393 CASE_UNPCK(PUNPCKHBW, r)
1394 case X86::MMX_PUNPCKHBWrr:
1395 Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1396 RegForm = true;
1397 [[fallthrough]];
1398
1399 CASE_UNPCK(PUNPCKHBW, m)
1400 case X86::MMX_PUNPCKHBWrm:
1401 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
1402 DestName = getRegName(MI->getOperand(0).getReg());
1403 DecodeUNPCKHMask(getRegOperandNumElts(MI, 8, 0), 8, ShuffleMask);
1404 break;
1405
1406 CASE_UNPCK(PUNPCKHWD, r)
1407 case X86::MMX_PUNPCKHWDrr:
1408 Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1409 RegForm = true;
1410 [[fallthrough]];
1411
1412 CASE_UNPCK(PUNPCKHWD, m)
1413 case X86::MMX_PUNPCKHWDrm:
1414 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
1415 DestName = getRegName(MI->getOperand(0).getReg());
1416 DecodeUNPCKHMask(getRegOperandNumElts(MI, 16, 0), 16, ShuffleMask);
1417 break;
1418
1419 CASE_UNPCK(PUNPCKHDQ, r)
1420 case X86::MMX_PUNPCKHDQrr:
1421 Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1422 RegForm = true;
1423 [[fallthrough]];
1424
1425 CASE_UNPCK(PUNPCKHDQ, m)
1426 case X86::MMX_PUNPCKHDQrm:
1427 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
1428 DestName = getRegName(MI->getOperand(0).getReg());
1429 DecodeUNPCKHMask(getRegOperandNumElts(MI, 32, 0), 32, ShuffleMask);
1430 break;
1431
1432 CASE_UNPCK(PUNPCKHQDQ, r)
1433 Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1434 RegForm = true;
1435 [[fallthrough]];
1436
1437 CASE_UNPCK(PUNPCKHQDQ, m)
1438 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
1439 DestName = getRegName(MI->getOperand(0).getReg());
1440 DecodeUNPCKHMask(getRegOperandNumElts(MI, 64, 0), 64, ShuffleMask);
1441 break;
1442
1443 CASE_UNPCK(PUNPCKLBW, r)
1444 case X86::MMX_PUNPCKLBWrr:
1445 Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1446 RegForm = true;
1447 [[fallthrough]];
1448
1449 CASE_UNPCK(PUNPCKLBW, m)
1450 case X86::MMX_PUNPCKLBWrm:
1451 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
1452 DestName = getRegName(MI->getOperand(0).getReg());
1453 DecodeUNPCKLMask(getRegOperandNumElts(MI, 8, 0), 8, ShuffleMask);
1454 break;
1455
1456 CASE_UNPCK(PUNPCKLWD, r)
1457 case X86::MMX_PUNPCKLWDrr:
1458 Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1459 RegForm = true;
1460 [[fallthrough]];
1461
1462 CASE_UNPCK(PUNPCKLWD, m)
1463 case X86::MMX_PUNPCKLWDrm:
1464 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
1465 DestName = getRegName(MI->getOperand(0).getReg());
1466 DecodeUNPCKLMask(getRegOperandNumElts(MI, 16, 0), 16, ShuffleMask);
1467 break;
1468
1469 CASE_UNPCK(PUNPCKLDQ, r)
1470 case X86::MMX_PUNPCKLDQrr:
1471 Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1472 RegForm = true;
1473 [[fallthrough]];
1474
1475 CASE_UNPCK(PUNPCKLDQ, m)
1476 case X86::MMX_PUNPCKLDQrm:
1477 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
1478 DestName = getRegName(MI->getOperand(0).getReg());
1479 DecodeUNPCKLMask(getRegOperandNumElts(MI, 32, 0), 32, ShuffleMask);
1480 break;
1481
1482 CASE_UNPCK(PUNPCKLQDQ, r)
1483 Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1484 RegForm = true;
1485 [[fallthrough]];
1486
1487 CASE_UNPCK(PUNPCKLQDQ, m)
1488 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
1489 DestName = getRegName(MI->getOperand(0).getReg());
1490 DecodeUNPCKLMask(getRegOperandNumElts(MI, 64, 0), 64, ShuffleMask);
1491 break;
1492
1493 CASE_SHUF(SHUFPD, rri)
1494 Src2Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1495 RegForm = true;
1496 [[fallthrough]];
1497
1498 CASE_SHUF(SHUFPD, rmi)
1499 if (MI->getOperand(NumOperands - 1).isImm())
1500 DecodeSHUFPMask(getRegOperandNumElts(MI, 64, 0), 64,
1501 MI->getOperand(NumOperands - 1).getImm(), ShuffleMask);
1502 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg());
1503 DestName = getRegName(MI->getOperand(0).getReg());
1504 break;
1505
1506 CASE_SHUF(SHUFPS, rri)
1507 Src2Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1508 RegForm = true;
1509 [[fallthrough]];
1510
1511 CASE_SHUF(SHUFPS, rmi)
1512 if (MI->getOperand(NumOperands - 1).isImm())
1513 DecodeSHUFPMask(getRegOperandNumElts(MI, 32, 0), 32,
1514 MI->getOperand(NumOperands - 1).getImm(),
1515 ShuffleMask);
1516 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg());
1517 DestName = getRegName(MI->getOperand(0).getReg());
1518 break;
1519
1520 CASE_VSHUF(64X2, r)
1521 Src2Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1522 RegForm = true;
1523 [[fallthrough]];
1524
1525 CASE_VSHUF(64X2, m)
1526 decodeVSHUF64x2FamilyMask(getRegOperandNumElts(MI, 64, 0), 64,
1527 MI->getOperand(NumOperands - 1).getImm(),
1528 ShuffleMask);
1529 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg());
1530 DestName = getRegName(MI->getOperand(0).getReg());
1531 break;
1532
1533 CASE_VSHUF(32X4, r)
1534 Src2Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1535 RegForm = true;
1536 [[fallthrough]];
1537
1538 CASE_VSHUF(32X4, m)
1539 decodeVSHUF64x2FamilyMask(getRegOperandNumElts(MI, 32, 0), 32,
1540 MI->getOperand(NumOperands - 1).getImm(),
1541 ShuffleMask);
1542 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg());
1543 DestName = getRegName(MI->getOperand(0).getReg());
1544 break;
1545
1546 CASE_UNPCK(UNPCKLPD, r)
1547 Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1548 RegForm = true;
1549 [[fallthrough]];
1550
1551 CASE_UNPCK(UNPCKLPD, m)
1552 DecodeUNPCKLMask(getRegOperandNumElts(MI, 64, 0), 64, ShuffleMask);
1553 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
1554 DestName = getRegName(MI->getOperand(0).getReg());
1555 break;
1556
1557 CASE_UNPCK(UNPCKLPS, r)
1558 Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1559 RegForm = true;
1560 [[fallthrough]];
1561
1562 CASE_UNPCK(UNPCKLPS, m)
1563 DecodeUNPCKLMask(getRegOperandNumElts(MI, 32, 0), 32, ShuffleMask);
1564 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
1565 DestName = getRegName(MI->getOperand(0).getReg());
1566 break;
1567
1568 CASE_UNPCK(UNPCKHPD, r)
1569 Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1570 RegForm = true;
1571 [[fallthrough]];
1572
1573 CASE_UNPCK(UNPCKHPD, m)
1574 DecodeUNPCKHMask(getRegOperandNumElts(MI, 64, 0), 64, ShuffleMask);
1575 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
1576 DestName = getRegName(MI->getOperand(0).getReg());
1577 break;
1578
1579 CASE_UNPCK(UNPCKHPS, r)
1580 Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1581 RegForm = true;
1582 [[fallthrough]];
1583
1584 CASE_UNPCK(UNPCKHPS, m)
1585 DecodeUNPCKHMask(getRegOperandNumElts(MI, 32, 0), 32, ShuffleMask);
1586 Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg());
1587 DestName = getRegName(MI->getOperand(0).getReg());
1588 break;
1589
1590 CASE_VPERMILPI(PERMILPS, r)
1591 Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1592 [[fallthrough]];
1593
1594 CASE_VPERMILPI(PERMILPS, m)
1595 if (MI->getOperand(NumOperands - 1).isImm())
1596 DecodePSHUFMask(getRegOperandNumElts(MI, 32, 0), 32,
1597 MI->getOperand(NumOperands - 1).getImm(),
1598 ShuffleMask);
1599 DestName = getRegName(MI->getOperand(0).getReg());
1600 break;
1601
1602 CASE_VPERMILPI(PERMILPD, r)
1603 Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1604 [[fallthrough]];
1605
1606 CASE_VPERMILPI(PERMILPD, m)
1607 if (MI->getOperand(NumOperands - 1).isImm())
1608 DecodePSHUFMask(getRegOperandNumElts(MI, 64, 0), 64,
1609 MI->getOperand(NumOperands - 1).getImm(),
1610 ShuffleMask);
1611 DestName = getRegName(MI->getOperand(0).getReg());
1612 break;
1613
1614 case X86::VPERM2F128rri:
1615 case X86::VPERM2I128rri:
1616 Src2Name = getRegName(MI->getOperand(2).getReg());
1617 [[fallthrough]];
1618
1619 case X86::VPERM2F128rmi:
1620 case X86::VPERM2I128rmi:
1621 // For instruction comments purpose, assume the 256-bit vector is v4i64.
1622 if (MI->getOperand(NumOperands - 1).isImm())
1623 DecodeVPERM2X128Mask(4, MI->getOperand(NumOperands - 1).getImm(),
1624 ShuffleMask);
1625 Src1Name = getRegName(MI->getOperand(1).getReg());
1626 DestName = getRegName(MI->getOperand(0).getReg());
1627 break;
1628
1629 CASE_VPERM(PERMPD, r)
1630 Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1631 [[fallthrough]];
1632
1633 CASE_VPERM(PERMPD, m)
1634 if (MI->getOperand(NumOperands - 1).isImm())
1635 DecodeVPERMMask(getRegOperandNumElts(MI, 64, 0),
1636 MI->getOperand(NumOperands - 1).getImm(),
1637 ShuffleMask);
1638 DestName = getRegName(MI->getOperand(0).getReg());
1639 break;
1640
1641 CASE_VPERM(PERMQ, r)
1642 Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg());
1643 [[fallthrough]];
1644
1645 CASE_VPERM(PERMQ, m)
1646 if (MI->getOperand(NumOperands - 1).isImm())
1647 DecodeVPERMMask(getRegOperandNumElts(MI, 64, 0),
1648 MI->getOperand(NumOperands - 1).getImm(),
1649 ShuffleMask);
1650 DestName = getRegName(MI->getOperand(0).getReg());
1651 break;
1652
1653 case X86::MOVSDrr:
1654 case X86::VMOVSDrr:
1655 case X86::VMOVSDZrr:
1656 Src2Name = getRegName(MI->getOperand(2).getReg());
1657 Src1Name = getRegName(MI->getOperand(1).getReg());
1658 DecodeScalarMoveMask(2, false, ShuffleMask);
1659 DestName = getRegName(MI->getOperand(0).getReg());
1660 break;
1661
1662 case X86::MOVSSrr:
1663 case X86::VMOVSSrr:
1664 case X86::VMOVSSZrr:
1665 Src2Name = getRegName(MI->getOperand(2).getReg());
1666 Src1Name = getRegName(MI->getOperand(1).getReg());
1667 DecodeScalarMoveMask(4, false, ShuffleMask);
1668 DestName = getRegName(MI->getOperand(0).getReg());
1669 break;
1670
1671 case X86::VMOVSHZrr:
1672 Src2Name = getRegName(MI->getOperand(2).getReg());
1673 Src1Name = getRegName(MI->getOperand(1).getReg());
1674 DecodeScalarMoveMask(8, false, ShuffleMask);
1675 DestName = getRegName(MI->getOperand(0).getReg());
1676 break;
1677
1678 case X86::MOVPQI2QIrr:
1679 case X86::MOVZPQILo2PQIrr:
1680 case X86::VMOVPQI2QIrr:
1681 case X86::VMOVPQI2QIZrr:
1682 case X86::VMOVZPQILo2PQIrr:
1683 case X86::VMOVZPQILo2PQIZrr:
1684 Src1Name = getRegName(MI->getOperand(1).getReg());
1685 DecodeZeroMoveLowMask(2, ShuffleMask);
1686 DestName = getRegName(MI->getOperand(0).getReg());
1687 break;
1688
1689 case X86::EXTRQI:
1690 if (MI->getOperand(2).isImm() &&
1691 MI->getOperand(3).isImm())
1692 DecodeEXTRQIMask(16, 8, MI->getOperand(2).getImm(),
1693 MI->getOperand(3).getImm(), ShuffleMask);
1694
1695 DestName = getRegName(MI->getOperand(0).getReg());
1696 Src1Name = getRegName(MI->getOperand(1).getReg());
1697 break;
1698
1699 case X86::INSERTQI:
1700 if (MI->getOperand(3).isImm() &&
1701 MI->getOperand(4).isImm())
1702 DecodeINSERTQIMask(16, 8, MI->getOperand(3).getImm(),
1703 MI->getOperand(4).getImm(), ShuffleMask);
1704
1705 DestName = getRegName(MI->getOperand(0).getReg());
1706 Src1Name = getRegName(MI->getOperand(1).getReg());
1707 Src2Name = getRegName(MI->getOperand(2).getReg());
1708 break;
1709
1710 case X86::VBROADCASTF128rm:
1711 case X86::VBROADCASTI128rm:
1712 CASE_AVX512_INS_COMMON(BROADCASTF64X2, Z256, rm)
1713 CASE_AVX512_INS_COMMON(BROADCASTI64X2, Z256, rm)
1714 DecodeSubVectorBroadcast(4, 2, ShuffleMask);
1715 DestName = getRegName(MI->getOperand(0).getReg());
1716 break;
1717 CASE_AVX512_INS_COMMON(BROADCASTF64X2, Z, rm)
1718 CASE_AVX512_INS_COMMON(BROADCASTI64X2, Z, rm)
1719 DecodeSubVectorBroadcast(8, 2, ShuffleMask);
1720 DestName = getRegName(MI->getOperand(0).getReg());
1721 break;
1722 CASE_AVX512_INS_COMMON(BROADCASTF64X4, Z, rm)
1723 CASE_AVX512_INS_COMMON(BROADCASTI64X4, Z, rm)
1724 DecodeSubVectorBroadcast(8, 4, ShuffleMask);
1725 DestName = getRegName(MI->getOperand(0).getReg());
1726 break;
1727 CASE_AVX512_INS_COMMON(BROADCASTF32X4, Z256, rm)
1728 CASE_AVX512_INS_COMMON(BROADCASTI32X4, Z256, rm)
1729 DecodeSubVectorBroadcast(8, 4, ShuffleMask);
1730 DestName = getRegName(MI->getOperand(0).getReg());
1731 break;
1732 CASE_AVX512_INS_COMMON(BROADCASTF32X4, Z, rm)
1733 CASE_AVX512_INS_COMMON(BROADCASTI32X4, Z, rm)
1734 DecodeSubVectorBroadcast(16, 4, ShuffleMask);
1735 DestName = getRegName(MI->getOperand(0).getReg());
1736 break;
1737 CASE_AVX512_INS_COMMON(BROADCASTF32X8, Z, rm)
1738 CASE_AVX512_INS_COMMON(BROADCASTI32X8, Z, rm)
1739 DecodeSubVectorBroadcast(16, 8, ShuffleMask);
1740 DestName = getRegName(MI->getOperand(0).getReg());
1741 break;
1742 CASE_AVX512_INS_COMMON(BROADCASTI32X2, Z128, rr)
1743 Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1744 [[fallthrough]];
1745 CASE_AVX512_INS_COMMON(BROADCASTI32X2, Z128, rm)
1746 DecodeSubVectorBroadcast(4, 2, ShuffleMask);
1747 DestName = getRegName(MI->getOperand(0).getReg());
1748 break;
1749 CASE_AVX512_INS_COMMON(BROADCASTF32X2, Z256, rr)
1750 CASE_AVX512_INS_COMMON(BROADCASTI32X2, Z256, rr)
1751 Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1752 [[fallthrough]];
1753 CASE_AVX512_INS_COMMON(BROADCASTF32X2, Z256, rm)
1754 CASE_AVX512_INS_COMMON(BROADCASTI32X2, Z256, rm)
1755 DecodeSubVectorBroadcast(8, 2, ShuffleMask);
1756 DestName = getRegName(MI->getOperand(0).getReg());
1757 break;
1758 CASE_AVX512_INS_COMMON(BROADCASTF32X2, Z, rr)
1759 CASE_AVX512_INS_COMMON(BROADCASTI32X2, Z, rr)
1760 Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1761 [[fallthrough]];
1762 CASE_AVX512_INS_COMMON(BROADCASTF32X2, Z, rm)
1763 CASE_AVX512_INS_COMMON(BROADCASTI32X2, Z, rm)
1764 DecodeSubVectorBroadcast(16, 2, ShuffleMask);
1765 DestName = getRegName(MI->getOperand(0).getReg());
1766 break;
1767
1768 CASE_PMOVZX(PMOVZXBW, r)
1769 Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1770 DecodeZeroExtendMask(8, 16, getRegOperandNumElts(MI, 16, 0), false,
1771 ShuffleMask);
1772 DestName = getRegName(MI->getOperand(0).getReg());
1773 break;
1774
1775 CASE_PMOVZX(PMOVZXBD, r)
1776 Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1777 DecodeZeroExtendMask(8, 32, getRegOperandNumElts(MI, 32, 0), false,
1778 ShuffleMask);
1779 DestName = getRegName(MI->getOperand(0).getReg());
1780 break;
1781
1782 CASE_PMOVZX(PMOVZXBQ, r)
1783 Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1784 DecodeZeroExtendMask(8, 64, getRegOperandNumElts(MI, 64, 0), false,
1785 ShuffleMask);
1786 DestName = getRegName(MI->getOperand(0).getReg());
1787 break;
1788
1789 CASE_PMOVZX(PMOVZXWD, r)
1790 Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1791 DecodeZeroExtendMask(16, 32, getRegOperandNumElts(MI, 32, 0), false,
1792 ShuffleMask);
1793 DestName = getRegName(MI->getOperand(0).getReg());
1794 break;
1795
1796 CASE_PMOVZX(PMOVZXWQ, r)
1797 Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1798 DecodeZeroExtendMask(16, 64, getRegOperandNumElts(MI, 64, 0), false,
1799 ShuffleMask);
1800 DestName = getRegName(MI->getOperand(0).getReg());
1801 break;
1802
1803 CASE_PMOVZX(PMOVZXDQ, r)
1804 Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg());
1805 DecodeZeroExtendMask(32, 64, getRegOperandNumElts(MI, 64, 0), false,
1806 ShuffleMask);
1807 DestName = getRegName(MI->getOperand(0).getReg());
1808 break;
1809 }
1810
1811 // The only comments we decode are shuffles, so give up if we were unable to
1812 // decode a shuffle mask.
1813 if (ShuffleMask.empty())
1814 return false;
1815
1816 if (!DestName) DestName = Src1Name;
1817 if (DestName) {
1818 OS << DestName;
1819 printMasking(OS, MI, MCII);
1820 } else
1821 OS << "mem";
1822
1823 OS << " = ";
1824
1825 // If the two sources are the same, canonicalize the input elements to be
1826 // from the first src so that we get larger element spans.
1827 if (Src1Name == Src2Name) {
1828 for (unsigned i = 0, e = ShuffleMask.size(); i != e; ++i) {
1829 if ((int)ShuffleMask[i] >= 0 && // Not sentinel.
1830 ShuffleMask[i] >= (int)e) // From second mask.
1831 ShuffleMask[i] -= e;
1832 }
1833 }
1834
1835 // The shuffle mask specifies which elements of the src1/src2 fill in the
1836 // destination, with a few sentinel values. Loop through and print them
1837 // out.
1838 for (unsigned i = 0, e = ShuffleMask.size(); i != e; ++i) {
1839 if (i != 0)
1840 OS << ',';
1841 if (ShuffleMask[i] == SM_SentinelZero) {
1842 OS << "zero";
1843 continue;
1844 }
1845
1846 // Otherwise, it must come from src1 or src2. Print the span of elements
1847 // that comes from this src.
1848 bool isSrc1 = ShuffleMask[i] < (int)ShuffleMask.size();
1849 const char *SrcName = isSrc1 ? Src1Name : Src2Name;
1850 OS << (SrcName ? SrcName : "mem") << '[';
1851 bool IsFirst = true;
1852 while (i != e && (int)ShuffleMask[i] != SM_SentinelZero &&
1853 (ShuffleMask[i] < (int)ShuffleMask.size()) == isSrc1) {
1854 if (!IsFirst)
1855 OS << ',';
1856 else
1857 IsFirst = false;
1858 if (ShuffleMask[i] == SM_SentinelUndef)
1859 OS << "u";
1860 else
1861 OS << ShuffleMask[i] % ShuffleMask.size();
1862 ++i;
1863 }
1864 OS << ']';
1865 --i; // For loop increments element #.
1866 }
1867 OS << '\n';
1868
1869 // We successfully added a comment to this instruction.
1870 return true;
1871}
E
static GCRegistry::Add< CoreCLRGC > E("coreclr", "CoreCLR-compatible GC")
MI
IRTranslator LLVM IR MI
Definition IRTranslator.cpp:110
I
#define I(x, y, z)
Definition MD5.cpp:58
Reg
Register Reg
Definition MachineSink.cpp:2117
CASE_VPERM
#define CASE_VPERM(Inst, src)
Definition X86InstComments.cpp:152
CASE_FPCLASS_PACKED_MEM
#define CASE_FPCLASS_PACKED_MEM(Inst)
Definition X86InstComments.cpp:60
CASE_FMA_SCALAR_REG
#define CASE_FMA_SCALAR_REG(Inst)
Definition X86InstComments.cpp:203
printPTERNLOGComments
static bool printPTERNLOGComments(const MCInst *MI, raw_ostream &OS, const MCInstrInfo &MCII)
Definition X86InstComments.cpp:915
CASE_FPCLASS_PACKED
#define CASE_FPCLASS_PACKED(Inst, src)
Definition X86InstComments.cpp:54
getVectorRegSize
static unsigned getVectorRegSize(MCRegister Reg)
Definition X86InstComments.cpp:257
CASE_VPERMILPI
#define CASE_VPERMILPI(Inst, src)
Definition X86InstComments.cpp:135
CASE_FMA4_SCALAR_MR
#define CASE_FMA4_SCALAR_MR(Inst)
Definition X86InstComments.cpp:251
printFMAComments
static bool printFMAComments(const MCInst *MI, raw_ostream &OS, const MCInstrInfo &MCII)
Definition X86InstComments.cpp:305
CASE_SHUF
#define CASE_SHUF(Inst, suf)
Definition X86InstComments.cpp:117
CASE_FMA4_PACKED_RM
#define CASE_FMA4_PACKED_RM(Inst)
Definition X86InstComments.cpp:231
CASE_MOVDUP
#define CASE_MOVDUP(Inst, src)
Definition X86InstComments.cpp:73
CASE_FMA_SCALAR_MEM
#define CASE_FMA_SCALAR_MEM(Inst)
Definition X86InstComments.cpp:213
CASE_FMA4_SCALAR_RR
#define CASE_FMA4_SCALAR_RR(Inst)
Definition X86InstComments.cpp:239
getRegOperandNumElts
static unsigned getRegOperandNumElts(const MCInst *MI, unsigned ScalarSize, unsigned OperandIndex)
Definition X86InstComments.cpp:270
CASE_FMA4_PACKED_MR
#define CASE_FMA4_PACKED_MR(Inst)
Definition X86InstComments.cpp:235
TernlogFunctions
constexpr StringLiteral TernlogFunctions[]
Definition X86InstComments.cpp:656
CASE_AVX512_INS_COMMON
#define CASE_AVX512_INS_COMMON(Inst, Suffix, src)
Definition X86InstComments.cpp:38
printFPCLASSComments
static bool printFPCLASSComments(const MCInst *MI, raw_ostream &OS, const MCInstrInfo &MCII)
Definition X86InstComments.cpp:998
getRegName
static const char * getRegName(MCRegister Reg)
Definition X86InstComments.cpp:276
CASE_PMOVZX
#define CASE_PMOVZX(Inst, src)
Definition X86InstComments.cpp:91
CASE_VSHUF
#define CASE_VSHUF(Inst, src)
Definition X86InstComments.cpp:165
CASE_FMA_PACKED_MEM
#define CASE_FMA_PACKED_MEM(Inst)
Definition X86InstComments.cpp:197
printMasking
static void printMasking(raw_ostream &OS, const MCInst *MI, const MCInstrInfo &MCII)
Wraps the destination register name with AVX512 mask/maskz filtering.
Definition X86InstComments.cpp:281
CASE_FPCLASS_SCALAR
#define CASE_FPCLASS_SCALAR(Inst, src)
Definition X86InstComments.cpp:64
CASE_FMA4_SCALAR_RM
#define CASE_FMA4_SCALAR_RM(Inst)
Definition X86InstComments.cpp:245
CASE_FMA4_PACKED_RR
#define CASE_FMA4_PACKED_RR(Inst)
Definition X86InstComments.cpp:227
CASE_FMA_PACKED_REG
#define CASE_FMA_PACKED_REG(Inst)
Definition X86InstComments.cpp:193
CASE_PTERNLOG
#define CASE_PTERNLOG(Inst, src)
Definition X86InstComments.cpp:68
CASE_UNPCK
#define CASE_UNPCK(Inst, src)
Definition X86InstComments.cpp:99
llvm::MCInst
Instances of this class represent a single low-level machine instruction.
Definition MCInst.h:188
llvm::MCInstrDesc
Describe properties that are true of each instruction in the target description file.
Definition MCInstrDesc.h:210
llvm::MCInstrInfo
Interface to description of machine instruction set.
Definition MCInstrInfo.h:27
llvm::MCInstrInfo::get
const MCInstrDesc & get(unsigned Opcode) const
Return the machine instruction descriptor that corresponds to the specified instruction opcode.
Definition MCInstrInfo.h:90
llvm::MCRegister
Wrapper class representing physical registers. Should be passed by value.
Definition MCRegister.h:33
llvm::SmallVector
This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small.
Definition SmallVector.h:1196
llvm::StringLiteral
A wrapper around a string literal that serves as a proxy for constructing global tables of StringRefs...
Definition StringRef.h:862
llvm::StringRef
StringRef - Represent a constant reference to a string, i.e.
Definition StringRef.h:55
llvm::X86ATTInstPrinter::getRegisterName
static const char * getRegisterName(MCRegister Reg)
llvm::raw_ostream
This class implements an extremely fast bulk output stream that can only output to a stream.
Definition raw_ostream.h:53
uint64_t
uint8_t
llvm_unreachable
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
Definition ErrorHandling.h:164
llvm::X86II::isZMMReg
bool isZMMReg(MCRegister Reg)
Definition X86BaseInfo.h:1179
llvm::X86II::isXMMReg
bool isXMMReg(MCRegister Reg)
Definition X86BaseInfo.h:1159
llvm::X86II::isYMMReg
bool isYMMReg(MCRegister Reg)
Definition X86BaseInfo.h:1169
llvm
This is an optimization pass for GlobalISel generic memory operations.
Definition AddressRanges.h:18
llvm::DecodeZeroExtendMask
void DecodeZeroExtendMask(unsigned SrcScalarBits, unsigned DstScalarBits, unsigned NumDstElts, bool IsAnyExtend, SmallVectorImpl< int > &ShuffleMask)
Decode a zero extension instruction as a shuffle mask.
Definition X86ShuffleDecode.cpp:371
llvm::EmitAnyX86InstComments
bool EmitAnyX86InstComments(const MCInst *MI, raw_ostream &OS, const MCInstrInfo &MCII)
EmitAnyX86InstComments - This function decodes x86 instructions and prints newline terminated strings...
Definition X86InstComments.cpp:1069
llvm::DecodeMOVHLPSMask
void DecodeMOVHLPSMask(unsigned NElts, SmallVectorImpl< int > &ShuffleMask)
Decode a MOVHLPS instruction as a v2f64/v4f32 shuffle mask.
Definition X86ShuffleDecode.cpp:61
llvm::DecodeZeroMoveLowMask
void DecodeZeroMoveLowMask(unsigned NumElts, SmallVectorImpl< int > &ShuffleMask)
Decode a move lower and zero upper instruction as a shuffle mask.
Definition X86ShuffleDecode.cpp:385
llvm::DecodeInsertElementMask
void DecodeInsertElementMask(unsigned NumElts, unsigned Idx, unsigned Len, SmallVectorImpl< int > &ShuffleMask)
Definition X86ShuffleDecode.cpp:50
llvm::DecodePSHUFLWMask
void DecodePSHUFLWMask(unsigned NumElts, unsigned Imm, SmallVectorImpl< int > &ShuffleMask)
Decodes the shuffle masks for pshuflw.
Definition X86ShuffleDecode.cpp:178
llvm::DecodeBLENDMask
void DecodeBLENDMask(unsigned NumElts, unsigned Imm, SmallVectorImpl< int > &ShuffleMask)
Decode a BLEND immediate mask into a shuffle mask.
Definition X86ShuffleDecode.cpp:315
llvm::decodeVSHUF64x2FamilyMask
void decodeVSHUF64x2FamilyMask(unsigned NumElts, unsigned ScalarSize, unsigned Imm, SmallVectorImpl< int > &ShuffleMask)
Decode a shuffle packed values at 128-bit granularity (SHUFF32x4/SHUFF64x2/SHUFI32x4/SHUFI64x2) immed...
Definition X86ShuffleDecode.cpp:264
llvm::DecodeVPERMMask
void DecodeVPERMMask(unsigned NumElts, unsigned Imm, SmallVectorImpl< int > &ShuffleMask)
Decodes the shuffle masks for VPERMQ/VPERMPD.
Definition X86ShuffleDecode.cpp:364
llvm::DecodeEXTRQIMask
void DecodeEXTRQIMask(unsigned NumElts, unsigned EltSize, int Len, int Idx, SmallVectorImpl< int > &ShuffleMask)
Decode a SSE4A EXTRQ instruction as a shuffle mask.
Definition X86ShuffleDecode.cpp:400
llvm::DecodePSRLDQMask
void DecodePSRLDQMask(unsigned NumElts, unsigned Imm, SmallVectorImpl< int > &ShuffleMask)
Definition X86ShuffleDecode.cpp:112
llvm::Desc
Op::Description Desc
Definition DWARFExpressionPrinter.cpp:23
llvm::DecodeINSERTPSMask
void DecodeINSERTPSMask(unsigned Imm, SmallVectorImpl< int > &ShuffleMask, bool SrcIsMem)
Decode a 128-bit INSERTPS instruction as a v4f32 shuffle mask.
Definition X86ShuffleDecode.cpp:26
llvm::DecodeVPERM2X128Mask
void DecodeVPERM2X128Mask(unsigned NumElts, unsigned Imm, SmallVectorImpl< int > &ShuffleMask)
Definition X86ShuffleDecode.cpp:281
llvm::DecodeMOVLHPSMask
void DecodeMOVLHPSMask(unsigned NElts, SmallVectorImpl< int > &ShuffleMask)
Decode a MOVLHPS instruction as a v2f64/v4f32 shuffle mask.
Definition X86ShuffleDecode.cpp:70
llvm::DecodePSWAPMask
void DecodePSWAPMask(unsigned NumElts, SmallVectorImpl< int > &ShuffleMask)
Decodes a PSWAPD 3DNow! instruction.
Definition X86ShuffleDecode.cpp:192
llvm::DecodeINSERTQIMask
void DecodeINSERTQIMask(unsigned NumElts, unsigned EltSize, int Len, int Idx, SmallVectorImpl< int > &ShuffleMask)
Decode a SSE4A INSERTQ instruction as a shuffle mask.
Definition X86ShuffleDecode.cpp:437
llvm::DecodeVALIGNMask
void DecodeVALIGNMask(unsigned NumElts, unsigned Imm, SmallVectorImpl< int > &ShuffleMask)
Definition X86ShuffleDecode.cpp:139
llvm::DecodeScalarMoveMask
void DecodeScalarMoveMask(unsigned NumElts, bool IsLoad, SmallVectorImpl< int > &ShuffleMask)
Decode a scalar float move instruction as a shuffle mask.
Definition X86ShuffleDecode.cpp:391
llvm::DecodePALIGNRMask
void DecodePALIGNRMask(unsigned NumElts, unsigned Imm, SmallVectorImpl< int > &ShuffleMask)
Definition X86ShuffleDecode.cpp:125
llvm::DecodeMOVSLDUPMask
void DecodeMOVSLDUPMask(unsigned NumElts, SmallVectorImpl< int > &ShuffleMask)
Definition X86ShuffleDecode.cpp:78
llvm::DecodeSubVectorBroadcast
void DecodeSubVectorBroadcast(unsigned DstNumElts, unsigned SrcNumElts, SmallVectorImpl< int > &ShuffleMask)
Decodes a broadcast of a subvector to a larger vector type.
Definition X86ShuffleDecode.cpp:255
llvm::DecodeUNPCKLMask
void DecodeUNPCKLMask(unsigned NumElts, unsigned ScalarBits, SmallVectorImpl< int > &ShuffleMask)
Decodes the shuffle masks for unpcklps/unpcklpd and punpckl*.
Definition X86ShuffleDecode.cpp:234
llvm::DecodePSLLDQMask
void DecodePSLLDQMask(unsigned NumElts, unsigned Imm, SmallVectorImpl< int > &ShuffleMask)
Definition X86ShuffleDecode.cpp:100
llvm::DecodeUNPCKHMask
void DecodeUNPCKHMask(unsigned NumElts, unsigned ScalarBits, SmallVectorImpl< int > &ShuffleMask)
Decodes the shuffle masks for unpckhps/unpckhpd and punpckh*.
Definition X86ShuffleDecode.cpp:218
llvm::DecodePSHUFMask
void DecodePSHUFMask(unsigned NumElts, unsigned ScalarBits, unsigned Imm, SmallVectorImpl< int > &ShuffleMask)
Decodes the shuffle masks for pshufd/pshufw/vpermilpd/vpermilps.
Definition X86ShuffleDecode.cpp:148
llvm::DecodeMOVDDUPMask
void DecodeMOVDDUPMask(unsigned NumElts, SmallVectorImpl< int > &ShuffleMask)
Definition X86ShuffleDecode.cpp:92
llvm::DecodeSHUFPMask
void DecodeSHUFPMask(unsigned NumElts, unsigned ScalarBits, unsigned Imm, SmallVectorImpl< int > &ShuffleMask)
Decodes the shuffle masks for shufp*.
Definition X86ShuffleDecode.cpp:201
llvm::DecodePSHUFHWMask
void DecodePSHUFHWMask(unsigned NumElts, unsigned Imm, SmallVectorImpl< int > &ShuffleMask)
Decodes the shuffle masks for pshufhw.
Definition X86ShuffleDecode.cpp:164
llvm::DecodeMOVSHDUPMask
void DecodeMOVSHDUPMask(unsigned NumElts, SmallVectorImpl< int > &ShuffleMask)
Definition X86ShuffleDecode.cpp:85
llvm::SM_SentinelUndef
@ SM_SentinelUndef
Definition X86ShuffleDecode.h:28
llvm::SM_SentinelZero
@ SM_SentinelZero
Definition X86ShuffleDecode.h:28
raw_ostream.h
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