LLVM 22.0.0git
SIInstrInfo.h
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1//===- SIInstrInfo.h - SI Instruction Info Interface ------------*- C++ -*-===//
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/// \file
10/// Interface definition for SIInstrInfo.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_LIB_TARGET_AMDGPU_SIINSTRINFO_H
15#define LLVM_LIB_TARGET_AMDGPU_SIINSTRINFO_H
16
17#include "AMDGPUMIRFormatter.h"
19#include "SIRegisterInfo.h"
21#include "llvm/ADT/SetVector.h"
24
25#define GET_INSTRINFO_HEADER
26#include "AMDGPUGenInstrInfo.inc"
27
28namespace llvm {
29
30class APInt;
31class GCNSubtarget;
32class LiveVariables;
33class MachineDominatorTree;
34class MachineRegisterInfo;
35class RegScavenger;
36class SIMachineFunctionInfo;
37class TargetRegisterClass;
38class ScheduleHazardRecognizer;
39
40constexpr unsigned DefaultMemoryClusterDWordsLimit = 8;
41
42/// Mark the MMO of a uniform load if there are no potentially clobbering stores
43/// on any path from the start of an entry function to this load.
46
47/// Mark the MMO of a load as the last use.
50
51/// Mark the MMO of cooperative load/store atomics.
54
55/// Utility to store machine instructions worklist.
57 SIInstrWorklist() = default;
58
59 void insert(MachineInstr *MI);
60
61 MachineInstr *top() const {
62 const auto *iter = InstrList.begin();
63 return *iter;
64 }
65
66 void erase_top() {
67 const auto *iter = InstrList.begin();
68 InstrList.erase(iter);
69 }
70
71 bool empty() const { return InstrList.empty(); }
72
73 void clear() {
74 InstrList.clear();
75 DeferredList.clear();
76 }
77
79
80 SetVector<MachineInstr *> &getDeferredList() { return DeferredList; }
81
82private:
83 /// InstrList contains the MachineInstrs.
85 /// Deferred instructions are specific MachineInstr
86 /// that will be added by insert method.
87 SetVector<MachineInstr *> DeferredList;
88};
89
90class SIInstrInfo final : public AMDGPUGenInstrInfo {
91private:
92 const SIRegisterInfo RI;
93 const GCNSubtarget &ST;
94 TargetSchedModel SchedModel;
95 mutable std::unique_ptr<AMDGPUMIRFormatter> Formatter;
96
97 // The inverse predicate should have the negative value.
98 enum BranchPredicate {
99 INVALID_BR = 0,
100 SCC_TRUE = 1,
101 SCC_FALSE = -1,
102 VCCNZ = 2,
103 VCCZ = -2,
104 EXECNZ = -3,
105 EXECZ = 3
106 };
107
108 using SetVectorType = SmallSetVector<MachineInstr *, 32>;
109
110 static unsigned getBranchOpcode(BranchPredicate Cond);
111 static BranchPredicate getBranchPredicate(unsigned Opcode);
112
113public:
116 const MachineOperand &SuperReg,
117 const TargetRegisterClass *SuperRC,
118 unsigned SubIdx,
119 const TargetRegisterClass *SubRC) const;
122 const MachineOperand &SuperReg, const TargetRegisterClass *SuperRC,
123 unsigned SubIdx, const TargetRegisterClass *SubRC) const;
124
125private:
126 void swapOperands(MachineInstr &Inst) const;
127
128 std::pair<bool, MachineBasicBlock *>
129 moveScalarAddSub(SIInstrWorklist &Worklist, MachineInstr &Inst,
130 MachineDominatorTree *MDT = nullptr) const;
131
132 void lowerSelect(SIInstrWorklist &Worklist, MachineInstr &Inst,
133 MachineDominatorTree *MDT = nullptr) const;
134
135 void lowerScalarAbs(SIInstrWorklist &Worklist, MachineInstr &Inst) const;
136
137 void lowerScalarXnor(SIInstrWorklist &Worklist, MachineInstr &Inst) const;
138
139 void splitScalarNotBinop(SIInstrWorklist &Worklist, MachineInstr &Inst,
140 unsigned Opcode) const;
141
142 void splitScalarBinOpN2(SIInstrWorklist &Worklist, MachineInstr &Inst,
143 unsigned Opcode) const;
144
145 void splitScalar64BitUnaryOp(SIInstrWorklist &Worklist, MachineInstr &Inst,
146 unsigned Opcode, bool Swap = false) const;
147
148 void splitScalar64BitBinaryOp(SIInstrWorklist &Worklist, MachineInstr &Inst,
149 unsigned Opcode,
150 MachineDominatorTree *MDT = nullptr) const;
151
152 void splitScalarSMulU64(SIInstrWorklist &Worklist, MachineInstr &Inst,
153 MachineDominatorTree *MDT) const;
154
155 void splitScalarSMulPseudo(SIInstrWorklist &Worklist, MachineInstr &Inst,
156 MachineDominatorTree *MDT) const;
157
158 void splitScalar64BitXnor(SIInstrWorklist &Worklist, MachineInstr &Inst,
159 MachineDominatorTree *MDT = nullptr) const;
160
161 void splitScalar64BitBCNT(SIInstrWorklist &Worklist,
162 MachineInstr &Inst) const;
163 void splitScalar64BitBFE(SIInstrWorklist &Worklist, MachineInstr &Inst) const;
164 void splitScalar64BitCountOp(SIInstrWorklist &Worklist, MachineInstr &Inst,
165 unsigned Opcode,
166 MachineDominatorTree *MDT = nullptr) const;
167 void movePackToVALU(SIInstrWorklist &Worklist, MachineRegisterInfo &MRI,
168 MachineInstr &Inst) const;
169
170 void addUsersToMoveToVALUWorklist(Register Reg, MachineRegisterInfo &MRI,
171 SIInstrWorklist &Worklist) const;
172
173 void addSCCDefUsersToVALUWorklist(MachineOperand &Op,
174 MachineInstr &SCCDefInst,
175 SIInstrWorklist &Worklist,
176 Register NewCond = Register()) const;
177 void addSCCDefsToVALUWorklist(MachineInstr *SCCUseInst,
178 SIInstrWorklist &Worklist) const;
179
180 const TargetRegisterClass *
181 getDestEquivalentVGPRClass(const MachineInstr &Inst) const;
182
183 bool checkInstOffsetsDoNotOverlap(const MachineInstr &MIa,
184 const MachineInstr &MIb) const;
185
186 Register findUsedSGPR(const MachineInstr &MI, int OpIndices[3]) const;
187
188 bool verifyCopy(const MachineInstr &MI, const MachineRegisterInfo &MRI,
189 StringRef &ErrInfo) const;
190
191 bool resultDependsOnExec(const MachineInstr &MI) const;
192
193protected:
194 /// If the specific machine instruction is a instruction that moves/copies
195 /// value from one register to another register return destination and source
196 /// registers as machine operands.
197 std::optional<DestSourcePair>
198 isCopyInstrImpl(const MachineInstr &MI) const override;
199
201 AMDGPU::OpName Src0OpName, MachineOperand &Src1,
202 AMDGPU::OpName Src1OpName) const;
203 bool isLegalToSwap(const MachineInstr &MI, unsigned fromIdx,
204 unsigned toIdx) const;
206 unsigned OpIdx0,
207 unsigned OpIdx1) const override;
208
209public:
211 MO_MASK = 0xf,
212
214 // MO_GOTPCREL -> symbol@GOTPCREL -> R_AMDGPU_GOTPCREL.
216 // MO_GOTPCREL32_LO -> symbol@gotpcrel32@lo -> R_AMDGPU_GOTPCREL32_LO.
219 // MO_GOTPCREL32_HI -> symbol@gotpcrel32@hi -> R_AMDGPU_GOTPCREL32_HI.
221 // MO_GOTPCREL64 -> symbol@GOTPCREL -> R_AMDGPU_GOTPCREL.
223 // MO_REL32_LO -> symbol@rel32@lo -> R_AMDGPU_REL32_LO.
226 // MO_REL32_HI -> symbol@rel32@hi -> R_AMDGPU_REL32_HI.
229
231
235 };
236
237 explicit SIInstrInfo(const GCNSubtarget &ST);
238
240 return RI;
241 }
242
243 const GCNSubtarget &getSubtarget() const {
244 return ST;
245 }
246
247 bool isReallyTriviallyReMaterializable(const MachineInstr &MI) const override;
248
249 bool isIgnorableUse(const MachineOperand &MO) const override;
250
251 bool isSafeToSink(MachineInstr &MI, MachineBasicBlock *SuccToSinkTo,
252 MachineCycleInfo *CI) const override;
253
254 bool areLoadsFromSameBasePtr(SDNode *Load0, SDNode *Load1, int64_t &Offset0,
255 int64_t &Offset1) const override;
256
257 bool isGlobalMemoryObject(const MachineInstr *MI) const override;
258
260 const MachineInstr &LdSt,
262 bool &OffsetIsScalable, LocationSize &Width,
263 const TargetRegisterInfo *TRI) const final;
264
266 int64_t Offset1, bool OffsetIsScalable1,
268 int64_t Offset2, bool OffsetIsScalable2,
269 unsigned ClusterSize,
270 unsigned NumBytes) const override;
271
272 bool shouldScheduleLoadsNear(SDNode *Load0, SDNode *Load1, int64_t Offset0,
273 int64_t Offset1, unsigned NumLoads) const override;
274
276 const DebugLoc &DL, Register DestReg, Register SrcReg,
277 bool KillSrc, bool RenamableDest = false,
278 bool RenamableSrc = false) const override;
279
281 unsigned Size) const;
282
285 Register SrcReg, int Value) const;
286
289 Register SrcReg, int Value) const;
290
292 int64_t &ImmVal) const override;
293
295 const TargetRegisterClass *RC,
296 unsigned Size,
297 const SIMachineFunctionInfo &MFI) const;
298 unsigned
300 unsigned Size,
301 const SIMachineFunctionInfo &MFI) const;
302
305 bool isKill, int FrameIndex, const TargetRegisterClass *RC,
306 const TargetRegisterInfo *TRI, Register VReg,
307 MachineInstr::MIFlag Flags = MachineInstr::NoFlags) const override;
308
311 int FrameIndex, const TargetRegisterClass *RC,
312 const TargetRegisterInfo *TRI, Register VReg,
313 MachineInstr::MIFlag Flags = MachineInstr::NoFlags) const override;
314
315 bool expandPostRAPseudo(MachineInstr &MI) const override;
316
318 Register DestReg, unsigned SubIdx,
319 const MachineInstr &Orig,
320 const TargetRegisterInfo &TRI) const override;
321
322 // Splits a V_MOV_B64_DPP_PSEUDO opcode into a pair of v_mov_b32_dpp
323 // instructions. Returns a pair of generated instructions.
324 // Can split either post-RA with physical registers or pre-RA with
325 // virtual registers. In latter case IR needs to be in SSA form and
326 // and a REG_SEQUENCE is produced to define original register.
327 std::pair<MachineInstr*, MachineInstr*>
329
330 // Returns an opcode that can be used to move a value to a \p DstRC
331 // register. If there is no hardware instruction that can store to \p
332 // DstRC, then AMDGPU::COPY is returned.
333 unsigned getMovOpcode(const TargetRegisterClass *DstRC) const;
334
335 const MCInstrDesc &getIndirectRegWriteMovRelPseudo(unsigned VecSize,
336 unsigned EltSize,
337 bool IsSGPR) const;
338
339 const MCInstrDesc &getIndirectGPRIDXPseudo(unsigned VecSize,
340 bool IsIndirectSrc) const;
342 int commuteOpcode(unsigned Opc) const;
343
345 inline int commuteOpcode(const MachineInstr &MI) const {
346 return commuteOpcode(MI.getOpcode());
347 }
348
349 bool findCommutedOpIndices(const MachineInstr &MI, unsigned &SrcOpIdx0,
350 unsigned &SrcOpIdx1) const override;
351
352 bool findCommutedOpIndices(const MCInstrDesc &Desc, unsigned &SrcOpIdx0,
353 unsigned &SrcOpIdx1) const;
354
355 bool isBranchOffsetInRange(unsigned BranchOpc,
356 int64_t BrOffset) const override;
357
358 MachineBasicBlock *getBranchDestBlock(const MachineInstr &MI) const override;
359
360 /// Return whether the block terminate with divergent branch.
361 /// Note this only work before lowering the pseudo control flow instructions.
362 bool hasDivergentBranch(const MachineBasicBlock *MBB) const;
363
365 MachineBasicBlock &NewDestBB,
366 MachineBasicBlock &RestoreBB, const DebugLoc &DL,
367 int64_t BrOffset, RegScavenger *RS) const override;
368
372 MachineBasicBlock *&FBB,
374 bool AllowModify) const;
375
377 MachineBasicBlock *&FBB,
379 bool AllowModify = false) const override;
380
382 int *BytesRemoved = nullptr) const override;
383
386 const DebugLoc &DL,
387 int *BytesAdded = nullptr) const override;
388
390 SmallVectorImpl<MachineOperand> &Cond) const override;
391
394 Register TrueReg, Register FalseReg, int &CondCycles,
395 int &TrueCycles, int &FalseCycles) const override;
396
400 Register TrueReg, Register FalseReg) const override;
401
405 Register TrueReg, Register FalseReg) const;
406
407 bool analyzeCompare(const MachineInstr &MI, Register &SrcReg,
408 Register &SrcReg2, int64_t &CmpMask,
409 int64_t &CmpValue) const override;
410
411 bool optimizeCompareInstr(MachineInstr &CmpInstr, Register SrcReg,
412 Register SrcReg2, int64_t CmpMask, int64_t CmpValue,
413 const MachineRegisterInfo *MRI) const override;
414
415 bool
417 const MachineInstr &MIb) const override;
418
419 static bool isFoldableCopy(const MachineInstr &MI);
420
421 void removeModOperands(MachineInstr &MI) const;
422
423 /// Return the extracted immediate value in a subregister use from a constant
424 /// materialized in a super register.
425 ///
426 /// e.g. %imm = S_MOV_B64 K[0:63]
427 /// USE %imm.sub1
428 /// This will return K[32:63]
429 static std::optional<int64_t> extractSubregFromImm(int64_t ImmVal,
430 unsigned SubRegIndex);
431
433 MachineRegisterInfo *MRI) const final;
434
435 unsigned getMachineCSELookAheadLimit() const override { return 500; }
436
438 LiveIntervals *LIS) const override;
439
441 const MachineBasicBlock *MBB,
442 const MachineFunction &MF) const override;
443
444 static bool isSALU(const MachineInstr &MI) {
445 return MI.getDesc().TSFlags & SIInstrFlags::SALU;
446 }
447
448 bool isSALU(uint16_t Opcode) const {
449 return get(Opcode).TSFlags & SIInstrFlags::SALU;
450 }
451
452 static bool isVALU(const MachineInstr &MI) {
453 return MI.getDesc().TSFlags & SIInstrFlags::VALU;
454 }
455
456 bool isVALU(uint16_t Opcode) const {
457 return get(Opcode).TSFlags & SIInstrFlags::VALU;
458 }
459
460 static bool isImage(const MachineInstr &MI) {
461 return isMIMG(MI) || isVSAMPLE(MI) || isVIMAGE(MI);
462 }
463
464 bool isImage(uint16_t Opcode) const {
465 return isMIMG(Opcode) || isVSAMPLE(Opcode) || isVIMAGE(Opcode);
466 }
467
468 static bool isVMEM(const MachineInstr &MI) {
469 return isMUBUF(MI) || isMTBUF(MI) || isImage(MI) || isFLAT(MI);
470 }
471
472 bool isVMEM(uint16_t Opcode) const {
473 return isMUBUF(Opcode) || isMTBUF(Opcode) || isImage(Opcode);
474 }
475
476 static bool isSOP1(const MachineInstr &MI) {
477 return MI.getDesc().TSFlags & SIInstrFlags::SOP1;
478 }
479
480 bool isSOP1(uint16_t Opcode) const {
481 return get(Opcode).TSFlags & SIInstrFlags::SOP1;
482 }
483
484 static bool isSOP2(const MachineInstr &MI) {
485 return MI.getDesc().TSFlags & SIInstrFlags::SOP2;
486 }
487
488 bool isSOP2(uint16_t Opcode) const {
489 return get(Opcode).TSFlags & SIInstrFlags::SOP2;
490 }
491
492 static bool isSOPC(const MachineInstr &MI) {
493 return MI.getDesc().TSFlags & SIInstrFlags::SOPC;
494 }
495
496 bool isSOPC(uint16_t Opcode) const {
497 return get(Opcode).TSFlags & SIInstrFlags::SOPC;
498 }
499
500 static bool isSOPK(const MachineInstr &MI) {
501 return MI.getDesc().TSFlags & SIInstrFlags::SOPK;
502 }
503
504 bool isSOPK(uint16_t Opcode) const {
505 return get(Opcode).TSFlags & SIInstrFlags::SOPK;
506 }
507
508 static bool isSOPP(const MachineInstr &MI) {
509 return MI.getDesc().TSFlags & SIInstrFlags::SOPP;
510 }
511
512 bool isSOPP(uint16_t Opcode) const {
513 return get(Opcode).TSFlags & SIInstrFlags::SOPP;
514 }
515
516 static bool isPacked(const MachineInstr &MI) {
517 return MI.getDesc().TSFlags & SIInstrFlags::IsPacked;
518 }
519
520 bool isPacked(uint16_t Opcode) const {
521 return get(Opcode).TSFlags & SIInstrFlags::IsPacked;
522 }
523
524 static bool isVOP1(const MachineInstr &MI) {
525 return MI.getDesc().TSFlags & SIInstrFlags::VOP1;
526 }
527
528 bool isVOP1(uint16_t Opcode) const {
529 return get(Opcode).TSFlags & SIInstrFlags::VOP1;
530 }
531
532 static bool isVOP2(const MachineInstr &MI) {
533 return MI.getDesc().TSFlags & SIInstrFlags::VOP2;
534 }
535
536 bool isVOP2(uint16_t Opcode) const {
537 return get(Opcode).TSFlags & SIInstrFlags::VOP2;
538 }
539
540 static bool isVOP3(const MCInstrDesc &Desc) {
541 return Desc.TSFlags & SIInstrFlags::VOP3;
542 }
543
544 static bool isVOP3(const MachineInstr &MI) { return isVOP3(MI.getDesc()); }
545
546 bool isVOP3(uint16_t Opcode) const { return isVOP3(get(Opcode)); }
547
548 static bool isSDWA(const MachineInstr &MI) {
549 return MI.getDesc().TSFlags & SIInstrFlags::SDWA;
550 }
551
552 bool isSDWA(uint16_t Opcode) const {
553 return get(Opcode).TSFlags & SIInstrFlags::SDWA;
554 }
555
556 static bool isVOPC(const MachineInstr &MI) {
557 return MI.getDesc().TSFlags & SIInstrFlags::VOPC;
558 }
559
560 bool isVOPC(uint16_t Opcode) const {
561 return get(Opcode).TSFlags & SIInstrFlags::VOPC;
562 }
563
564 static bool isMUBUF(const MachineInstr &MI) {
565 return MI.getDesc().TSFlags & SIInstrFlags::MUBUF;
566 }
567
568 bool isMUBUF(uint16_t Opcode) const {
569 return get(Opcode).TSFlags & SIInstrFlags::MUBUF;
570 }
571
572 static bool isMTBUF(const MachineInstr &MI) {
573 return MI.getDesc().TSFlags & SIInstrFlags::MTBUF;
574 }
575
576 bool isMTBUF(uint16_t Opcode) const {
577 return get(Opcode).TSFlags & SIInstrFlags::MTBUF;
578 }
579
580 static bool isSMRD(const MachineInstr &MI) {
581 return MI.getDesc().TSFlags & SIInstrFlags::SMRD;
582 }
583
584 bool isSMRD(uint16_t Opcode) const {
585 return get(Opcode).TSFlags & SIInstrFlags::SMRD;
586 }
587
588 bool isBufferSMRD(const MachineInstr &MI) const;
589
590 static bool isDS(const MachineInstr &MI) {
591 return MI.getDesc().TSFlags & SIInstrFlags::DS;
592 }
593
594 bool isDS(uint16_t Opcode) const {
595 return get(Opcode).TSFlags & SIInstrFlags::DS;
596 }
597
598 static bool isLDSDMA(const MachineInstr &MI) {
599 return isVALU(MI) && (isMUBUF(MI) || isFLAT(MI));
600 }
601
602 bool isLDSDMA(uint16_t Opcode) {
603 return isVALU(Opcode) && (isMUBUF(Opcode) || isFLAT(Opcode));
604 }
605
606 static bool isGWS(const MachineInstr &MI) {
607 return MI.getDesc().TSFlags & SIInstrFlags::GWS;
608 }
609
610 bool isGWS(uint16_t Opcode) const {
611 return get(Opcode).TSFlags & SIInstrFlags::GWS;
612 }
613
614 bool isAlwaysGDS(uint16_t Opcode) const;
615
616 static bool isMIMG(const MachineInstr &MI) {
617 return MI.getDesc().TSFlags & SIInstrFlags::MIMG;
618 }
619
620 bool isMIMG(uint16_t Opcode) const {
621 return get(Opcode).TSFlags & SIInstrFlags::MIMG;
622 }
623
624 static bool isVIMAGE(const MachineInstr &MI) {
625 return MI.getDesc().TSFlags & SIInstrFlags::VIMAGE;
626 }
627
628 bool isVIMAGE(uint16_t Opcode) const {
629 return get(Opcode).TSFlags & SIInstrFlags::VIMAGE;
630 }
631
632 static bool isVSAMPLE(const MachineInstr &MI) {
633 return MI.getDesc().TSFlags & SIInstrFlags::VSAMPLE;
634 }
635
636 bool isVSAMPLE(uint16_t Opcode) const {
637 return get(Opcode).TSFlags & SIInstrFlags::VSAMPLE;
638 }
639
640 static bool isGather4(const MachineInstr &MI) {
641 return MI.getDesc().TSFlags & SIInstrFlags::Gather4;
642 }
643
644 bool isGather4(uint16_t Opcode) const {
645 return get(Opcode).TSFlags & SIInstrFlags::Gather4;
646 }
647
648 static bool isFLAT(const MachineInstr &MI) {
649 return MI.getDesc().TSFlags & SIInstrFlags::FLAT;
650 }
651
652 // Is a FLAT encoded instruction which accesses a specific segment,
653 // i.e. global_* or scratch_*.
655 auto Flags = MI.getDesc().TSFlags;
657 }
658
659 bool isSegmentSpecificFLAT(uint16_t Opcode) const {
660 auto Flags = get(Opcode).TSFlags;
662 }
663
664 static bool isFLATGlobal(const MachineInstr &MI) {
665 return MI.getDesc().TSFlags & SIInstrFlags::FlatGlobal;
666 }
667
668 bool isFLATGlobal(uint16_t Opcode) const {
669 return get(Opcode).TSFlags & SIInstrFlags::FlatGlobal;
670 }
671
672 static bool isFLATScratch(const MachineInstr &MI) {
673 return MI.getDesc().TSFlags & SIInstrFlags::FlatScratch;
674 }
675
676 bool isFLATScratch(uint16_t Opcode) const {
677 return get(Opcode).TSFlags & SIInstrFlags::FlatScratch;
678 }
679
680 // Any FLAT encoded instruction, including global_* and scratch_*.
681 bool isFLAT(uint16_t Opcode) const {
682 return get(Opcode).TSFlags & SIInstrFlags::FLAT;
683 }
684
685 /// \returns true for SCRATCH_ instructions, or FLAT_ instructions with
686 /// SCRATCH_ memory operands.
687 /// Conservatively correct; will return true if \p MI cannot be proven
688 /// to not hit scratch.
690
691 static bool isBlockLoadStore(uint16_t Opcode) {
692 switch (Opcode) {
693 case AMDGPU::SI_BLOCK_SPILL_V1024_SAVE:
694 case AMDGPU::SI_BLOCK_SPILL_V1024_RESTORE:
695 case AMDGPU::SCRATCH_STORE_BLOCK_SADDR:
696 case AMDGPU::SCRATCH_LOAD_BLOCK_SADDR:
697 case AMDGPU::SCRATCH_STORE_BLOCK_SVS:
698 case AMDGPU::SCRATCH_LOAD_BLOCK_SVS:
699 return true;
700 default:
701 return false;
702 }
703 }
704
705 static bool isEXP(const MachineInstr &MI) {
706 return MI.getDesc().TSFlags & SIInstrFlags::EXP;
707 }
708
710 if (!isEXP(MI))
711 return false;
712 unsigned Target = MI.getOperand(0).getImm();
715 }
716
717 bool isEXP(uint16_t Opcode) const {
718 return get(Opcode).TSFlags & SIInstrFlags::EXP;
719 }
720
721 static bool isAtomicNoRet(const MachineInstr &MI) {
722 return MI.getDesc().TSFlags & SIInstrFlags::IsAtomicNoRet;
723 }
724
725 bool isAtomicNoRet(uint16_t Opcode) const {
726 return get(Opcode).TSFlags & SIInstrFlags::IsAtomicNoRet;
727 }
728
729 static bool isAtomicRet(const MachineInstr &MI) {
730 return MI.getDesc().TSFlags & SIInstrFlags::IsAtomicRet;
731 }
732
733 bool isAtomicRet(uint16_t Opcode) const {
734 return get(Opcode).TSFlags & SIInstrFlags::IsAtomicRet;
735 }
736
737 static bool isAtomic(const MachineInstr &MI) {
738 return MI.getDesc().TSFlags & (SIInstrFlags::IsAtomicRet |
740 }
741
742 bool isAtomic(uint16_t Opcode) const {
743 return get(Opcode).TSFlags & (SIInstrFlags::IsAtomicRet |
745 }
746
748 return isLDSDMA(MI) && MI.getOpcode() != AMDGPU::BUFFER_STORE_LDS_DWORD;
749 }
750
751 static bool isWQM(const MachineInstr &MI) {
752 return MI.getDesc().TSFlags & SIInstrFlags::WQM;
753 }
754
755 bool isWQM(uint16_t Opcode) const {
756 return get(Opcode).TSFlags & SIInstrFlags::WQM;
757 }
758
759 static bool isDisableWQM(const MachineInstr &MI) {
760 return MI.getDesc().TSFlags & SIInstrFlags::DisableWQM;
761 }
762
763 bool isDisableWQM(uint16_t Opcode) const {
764 return get(Opcode).TSFlags & SIInstrFlags::DisableWQM;
765 }
766
767 // SI_SPILL_S32_TO_VGPR and SI_RESTORE_S32_FROM_VGPR form a special case of
768 // SGPRs spilling to VGPRs which are SGPR spills but from VALU instructions
769 // therefore we need an explicit check for them since just checking if the
770 // Spill bit is set and what instruction type it came from misclassifies
771 // them.
772 static bool isVGPRSpill(const MachineInstr &MI) {
773 return MI.getOpcode() != AMDGPU::SI_SPILL_S32_TO_VGPR &&
774 MI.getOpcode() != AMDGPU::SI_RESTORE_S32_FROM_VGPR &&
775 (isSpill(MI) && isVALU(MI));
776 }
777
778 bool isVGPRSpill(uint16_t Opcode) const {
779 return Opcode != AMDGPU::SI_SPILL_S32_TO_VGPR &&
780 Opcode != AMDGPU::SI_RESTORE_S32_FROM_VGPR &&
781 (isSpill(Opcode) && isVALU(Opcode));
782 }
783
784 static bool isSGPRSpill(const MachineInstr &MI) {
785 return MI.getOpcode() == AMDGPU::SI_SPILL_S32_TO_VGPR ||
786 MI.getOpcode() == AMDGPU::SI_RESTORE_S32_FROM_VGPR ||
787 (isSpill(MI) && isSALU(MI));
788 }
789
790 bool isSGPRSpill(uint16_t Opcode) const {
791 return Opcode == AMDGPU::SI_SPILL_S32_TO_VGPR ||
792 Opcode == AMDGPU::SI_RESTORE_S32_FROM_VGPR ||
793 (isSpill(Opcode) && isSALU(Opcode));
794 }
795
796 bool isSpill(uint16_t Opcode) const {
797 return get(Opcode).TSFlags & SIInstrFlags::Spill;
798 }
799
800 static bool isSpill(const MachineInstr &MI) {
801 return MI.getDesc().TSFlags & SIInstrFlags::Spill;
802 }
803
804 static bool isWWMRegSpillOpcode(uint16_t Opcode) {
805 return Opcode == AMDGPU::SI_SPILL_WWM_V32_SAVE ||
806 Opcode == AMDGPU::SI_SPILL_WWM_AV32_SAVE ||
807 Opcode == AMDGPU::SI_SPILL_WWM_V32_RESTORE ||
808 Opcode == AMDGPU::SI_SPILL_WWM_AV32_RESTORE;
809 }
810
811 static bool isChainCallOpcode(uint64_t Opcode) {
812 return Opcode == AMDGPU::SI_CS_CHAIN_TC_W32 ||
813 Opcode == AMDGPU::SI_CS_CHAIN_TC_W64;
814 }
815
816 static bool isDPP(const MachineInstr &MI) {
817 return MI.getDesc().TSFlags & SIInstrFlags::DPP;
818 }
819
820 bool isDPP(uint16_t Opcode) const {
821 return get(Opcode).TSFlags & SIInstrFlags::DPP;
822 }
823
824 static bool isTRANS(const MachineInstr &MI) {
825 return MI.getDesc().TSFlags & SIInstrFlags::TRANS;
826 }
827
828 bool isTRANS(uint16_t Opcode) const {
829 return get(Opcode).TSFlags & SIInstrFlags::TRANS;
830 }
831
832 static bool isVOP3P(const MachineInstr &MI) {
833 return MI.getDesc().TSFlags & SIInstrFlags::VOP3P;
834 }
835
836 bool isVOP3P(uint16_t Opcode) const {
837 return get(Opcode).TSFlags & SIInstrFlags::VOP3P;
838 }
839
840 static bool isVINTRP(const MachineInstr &MI) {
841 return MI.getDesc().TSFlags & SIInstrFlags::VINTRP;
842 }
843
844 bool isVINTRP(uint16_t Opcode) const {
845 return get(Opcode).TSFlags & SIInstrFlags::VINTRP;
846 }
847
848 static bool isMAI(const MCInstrDesc &Desc) {
849 return Desc.TSFlags & SIInstrFlags::IsMAI;
850 }
851
852 static bool isMAI(const MachineInstr &MI) { return isMAI(MI.getDesc()); }
853
854 bool isMAI(uint16_t Opcode) const { return isMAI(get(Opcode)); }
855
856 static bool isMFMA(const MachineInstr &MI) {
857 return isMAI(MI) && MI.getOpcode() != AMDGPU::V_ACCVGPR_WRITE_B32_e64 &&
858 MI.getOpcode() != AMDGPU::V_ACCVGPR_READ_B32_e64;
859 }
860
861 static bool isDOT(const MachineInstr &MI) {
862 return MI.getDesc().TSFlags & SIInstrFlags::IsDOT;
863 }
864
865 static bool isWMMA(const MachineInstr &MI) {
866 return MI.getDesc().TSFlags & SIInstrFlags::IsWMMA;
867 }
868
869 bool isWMMA(uint16_t Opcode) const {
870 return get(Opcode).TSFlags & SIInstrFlags::IsWMMA;
871 }
872
873 static bool isMFMAorWMMA(const MachineInstr &MI) {
874 return isMFMA(MI) || isWMMA(MI) || isSWMMAC(MI);
875 }
876
877 static bool isSWMMAC(const MachineInstr &MI) {
878 return MI.getDesc().TSFlags & SIInstrFlags::IsSWMMAC;
879 }
880
881 bool isSWMMAC(uint16_t Opcode) const {
882 return get(Opcode).TSFlags & SIInstrFlags::IsSWMMAC;
883 }
884
885 bool isDOT(uint16_t Opcode) const {
886 return get(Opcode).TSFlags & SIInstrFlags::IsDOT;
887 }
888
889 bool isXDLWMMA(const MachineInstr &MI) const;
890
891 bool isXDL(const MachineInstr &MI) const;
892
893 static bool isDGEMM(unsigned Opcode) { return AMDGPU::getMAIIsDGEMM(Opcode); }
894
895 static bool isLDSDIR(const MachineInstr &MI) {
896 return MI.getDesc().TSFlags & SIInstrFlags::LDSDIR;
897 }
898
899 bool isLDSDIR(uint16_t Opcode) const {
900 return get(Opcode).TSFlags & SIInstrFlags::LDSDIR;
901 }
902
903 static bool isVINTERP(const MachineInstr &MI) {
904 return MI.getDesc().TSFlags & SIInstrFlags::VINTERP;
905 }
906
907 bool isVINTERP(uint16_t Opcode) const {
908 return get(Opcode).TSFlags & SIInstrFlags::VINTERP;
909 }
910
911 static bool isScalarUnit(const MachineInstr &MI) {
912 return MI.getDesc().TSFlags & (SIInstrFlags::SALU | SIInstrFlags::SMRD);
913 }
914
915 static bool usesVM_CNT(const MachineInstr &MI) {
916 return MI.getDesc().TSFlags & SIInstrFlags::VM_CNT;
917 }
918
919 static bool usesLGKM_CNT(const MachineInstr &MI) {
920 return MI.getDesc().TSFlags & SIInstrFlags::LGKM_CNT;
921 }
922
923 // Most sopk treat the immediate as a signed 16-bit, however some
924 // use it as unsigned.
925 static bool sopkIsZext(unsigned Opcode) {
926 return Opcode == AMDGPU::S_CMPK_EQ_U32 || Opcode == AMDGPU::S_CMPK_LG_U32 ||
927 Opcode == AMDGPU::S_CMPK_GT_U32 || Opcode == AMDGPU::S_CMPK_GE_U32 ||
928 Opcode == AMDGPU::S_CMPK_LT_U32 || Opcode == AMDGPU::S_CMPK_LE_U32 ||
929 Opcode == AMDGPU::S_GETREG_B32;
930 }
931
932 /// \returns true if this is an s_store_dword* instruction. This is more
933 /// specific than isSMEM && mayStore.
934 static bool isScalarStore(const MachineInstr &MI) {
935 return MI.getDesc().TSFlags & SIInstrFlags::SCALAR_STORE;
936 }
937
938 bool isScalarStore(uint16_t Opcode) const {
939 return get(Opcode).TSFlags & SIInstrFlags::SCALAR_STORE;
940 }
941
942 static bool isFixedSize(const MachineInstr &MI) {
943 return MI.getDesc().TSFlags & SIInstrFlags::FIXED_SIZE;
944 }
945
946 bool isFixedSize(uint16_t Opcode) const {
947 return get(Opcode).TSFlags & SIInstrFlags::FIXED_SIZE;
948 }
949
950 static bool hasFPClamp(const MachineInstr &MI) {
951 return MI.getDesc().TSFlags & SIInstrFlags::FPClamp;
952 }
953
954 bool hasFPClamp(uint16_t Opcode) const {
955 return get(Opcode).TSFlags & SIInstrFlags::FPClamp;
956 }
957
958 static bool hasIntClamp(const MachineInstr &MI) {
959 return MI.getDesc().TSFlags & SIInstrFlags::IntClamp;
960 }
961
963 const uint64_t ClampFlags = SIInstrFlags::FPClamp |
967 return MI.getDesc().TSFlags & ClampFlags;
968 }
969
970 static bool usesFPDPRounding(const MachineInstr &MI) {
971 return MI.getDesc().TSFlags & SIInstrFlags::FPDPRounding;
972 }
973
974 bool usesFPDPRounding(uint16_t Opcode) const {
975 return get(Opcode).TSFlags & SIInstrFlags::FPDPRounding;
976 }
977
978 static bool isFPAtomic(const MachineInstr &MI) {
979 return MI.getDesc().TSFlags & SIInstrFlags::FPAtomic;
980 }
981
982 bool isFPAtomic(uint16_t Opcode) const {
983 return get(Opcode).TSFlags & SIInstrFlags::FPAtomic;
984 }
985
986 static bool isNeverUniform(const MachineInstr &MI) {
987 return MI.getDesc().TSFlags & SIInstrFlags::IsNeverUniform;
988 }
989
990 // Check to see if opcode is for a barrier start. Pre gfx12 this is just the
991 // S_BARRIER, but after support for S_BARRIER_SIGNAL* / S_BARRIER_WAIT we want
992 // to check for the barrier start (S_BARRIER_SIGNAL*)
993 bool isBarrierStart(unsigned Opcode) const {
994 return Opcode == AMDGPU::S_BARRIER ||
995 Opcode == AMDGPU::S_BARRIER_SIGNAL_M0 ||
996 Opcode == AMDGPU::S_BARRIER_SIGNAL_ISFIRST_M0 ||
997 Opcode == AMDGPU::S_BARRIER_SIGNAL_IMM ||
998 Opcode == AMDGPU::S_BARRIER_SIGNAL_ISFIRST_IMM;
999 }
1000
1001 bool isBarrier(unsigned Opcode) const {
1002 return isBarrierStart(Opcode) || Opcode == AMDGPU::S_BARRIER_WAIT ||
1003 Opcode == AMDGPU::S_BARRIER_INIT_M0 ||
1004 Opcode == AMDGPU::S_BARRIER_INIT_IMM ||
1005 Opcode == AMDGPU::S_BARRIER_JOIN_IMM ||
1006 Opcode == AMDGPU::S_BARRIER_LEAVE ||
1007 Opcode == AMDGPU::S_BARRIER_LEAVE_IMM ||
1008 Opcode == AMDGPU::DS_GWS_INIT || Opcode == AMDGPU::DS_GWS_BARRIER;
1009 }
1010
1011 static bool isF16PseudoScalarTrans(unsigned Opcode) {
1012 return Opcode == AMDGPU::V_S_EXP_F16_e64 ||
1013 Opcode == AMDGPU::V_S_LOG_F16_e64 ||
1014 Opcode == AMDGPU::V_S_RCP_F16_e64 ||
1015 Opcode == AMDGPU::V_S_RSQ_F16_e64 ||
1016 Opcode == AMDGPU::V_S_SQRT_F16_e64;
1017 }
1018
1020 return MI.getDesc().TSFlags & SIInstrFlags::TiedSourceNotRead;
1021 }
1022
1023 bool doesNotReadTiedSource(uint16_t Opcode) const {
1024 return get(Opcode).TSFlags & SIInstrFlags::TiedSourceNotRead;
1025 }
1026
1027 bool isIGLP(unsigned Opcode) const {
1028 return Opcode == AMDGPU::SCHED_BARRIER ||
1029 Opcode == AMDGPU::SCHED_GROUP_BARRIER || Opcode == AMDGPU::IGLP_OPT;
1030 }
1031
1032 bool isIGLP(const MachineInstr &MI) const { return isIGLP(MI.getOpcode()); }
1033
1034 // Return true if the instruction is mutually exclusive with all non-IGLP DAG
1035 // mutations, requiring all other mutations to be disabled.
1036 bool isIGLPMutationOnly(unsigned Opcode) const {
1037 return Opcode == AMDGPU::SCHED_GROUP_BARRIER || Opcode == AMDGPU::IGLP_OPT;
1038 }
1039
1040 static unsigned getNonSoftWaitcntOpcode(unsigned Opcode) {
1041 switch (Opcode) {
1042 case AMDGPU::S_WAITCNT_soft:
1043 return AMDGPU::S_WAITCNT;
1044 case AMDGPU::S_WAITCNT_VSCNT_soft:
1045 return AMDGPU::S_WAITCNT_VSCNT;
1046 case AMDGPU::S_WAIT_LOADCNT_soft:
1047 return AMDGPU::S_WAIT_LOADCNT;
1048 case AMDGPU::S_WAIT_STORECNT_soft:
1049 return AMDGPU::S_WAIT_STORECNT;
1050 case AMDGPU::S_WAIT_SAMPLECNT_soft:
1051 return AMDGPU::S_WAIT_SAMPLECNT;
1052 case AMDGPU::S_WAIT_BVHCNT_soft:
1053 return AMDGPU::S_WAIT_BVHCNT;
1054 case AMDGPU::S_WAIT_DSCNT_soft:
1055 return AMDGPU::S_WAIT_DSCNT;
1056 case AMDGPU::S_WAIT_KMCNT_soft:
1057 return AMDGPU::S_WAIT_KMCNT;
1058 case AMDGPU::S_WAIT_XCNT_soft:
1059 return AMDGPU::S_WAIT_XCNT;
1060 default:
1061 return Opcode;
1062 }
1063 }
1064
1065 static bool isWaitcnt(unsigned Opcode) {
1066 switch (getNonSoftWaitcntOpcode(Opcode)) {
1067 case AMDGPU::S_WAITCNT:
1068 case AMDGPU::S_WAITCNT_VSCNT:
1069 case AMDGPU::S_WAITCNT_VMCNT:
1070 case AMDGPU::S_WAITCNT_EXPCNT:
1071 case AMDGPU::S_WAITCNT_LGKMCNT:
1072 case AMDGPU::S_WAIT_LOADCNT:
1073 case AMDGPU::S_WAIT_LOADCNT_DSCNT:
1074 case AMDGPU::S_WAIT_STORECNT:
1075 case AMDGPU::S_WAIT_STORECNT_DSCNT:
1076 case AMDGPU::S_WAIT_SAMPLECNT:
1077 case AMDGPU::S_WAIT_BVHCNT:
1078 case AMDGPU::S_WAIT_EXPCNT:
1079 case AMDGPU::S_WAIT_DSCNT:
1080 case AMDGPU::S_WAIT_KMCNT:
1081 case AMDGPU::S_WAIT_IDLE:
1082 return true;
1083 default:
1084 return false;
1085 }
1086 }
1087
1088 bool isVGPRCopy(const MachineInstr &MI) const {
1089 assert(isCopyInstr(MI));
1090 Register Dest = MI.getOperand(0).getReg();
1091 const MachineFunction &MF = *MI.getParent()->getParent();
1092 const MachineRegisterInfo &MRI = MF.getRegInfo();
1093 return !RI.isSGPRReg(MRI, Dest);
1094 }
1095
1096 bool hasVGPRUses(const MachineInstr &MI) const {
1097 const MachineFunction &MF = *MI.getParent()->getParent();
1098 const MachineRegisterInfo &MRI = MF.getRegInfo();
1099 return llvm::any_of(MI.explicit_uses(),
1100 [&MRI, this](const MachineOperand &MO) {
1101 return MO.isReg() && RI.isVGPR(MRI, MO.getReg());});
1102 }
1103
1104 /// Return true if the instruction modifies the mode register.q
1105 static bool modifiesModeRegister(const MachineInstr &MI);
1106
1107 /// This function is used to determine if an instruction can be safely
1108 /// executed under EXEC = 0 without hardware error, indeterminate results,
1109 /// and/or visible effects on future vector execution or outside the shader.
1110 /// Note: as of 2024 the only use of this is SIPreEmitPeephole where it is
1111 /// used in removing branches over short EXEC = 0 sequences.
1112 /// As such it embeds certain assumptions which may not apply to every case
1113 /// of EXEC = 0 execution.
1115
1116 /// Returns true if the instruction could potentially depend on the value of
1117 /// exec. If false, exec dependencies may safely be ignored.
1118 bool mayReadEXEC(const MachineRegisterInfo &MRI, const MachineInstr &MI) const;
1119
1120 bool isInlineConstant(const APInt &Imm) const;
1121
1122 bool isInlineConstant(const APFloat &Imm) const;
1123
1124 // Returns true if this non-register operand definitely does not need to be
1125 // encoded as a 32-bit literal. Note that this function handles all kinds of
1126 // operands, not just immediates.
1127 //
1128 // Some operands like FrameIndexes could resolve to an inline immediate value
1129 // that will not require an additional 4-bytes; this function assumes that it
1130 // will.
1131 bool isInlineConstant(const MachineOperand &MO, uint8_t OperandType) const {
1132 if (!MO.isImm())
1133 return false;
1134 return isInlineConstant(MO.getImm(), OperandType);
1135 }
1136 bool isInlineConstant(int64_t ImmVal, uint8_t OperandType) const;
1137
1139 const MCOperandInfo &OpInfo) const {
1140 return isInlineConstant(MO, OpInfo.OperandType);
1141 }
1142
1143 /// \p returns true if \p UseMO is substituted with \p DefMO in \p MI it would
1144 /// be an inline immediate.
1146 const MachineOperand &UseMO,
1147 const MachineOperand &DefMO) const {
1148 assert(UseMO.getParent() == &MI);
1149 int OpIdx = UseMO.getOperandNo();
1150 if (OpIdx >= MI.getDesc().NumOperands)
1151 return false;
1152
1153 return isInlineConstant(DefMO, MI.getDesc().operands()[OpIdx]);
1154 }
1155
1156 /// \p returns true if the operand \p OpIdx in \p MI is a valid inline
1157 /// immediate.
1158 bool isInlineConstant(const MachineInstr &MI, unsigned OpIdx) const {
1159 const MachineOperand &MO = MI.getOperand(OpIdx);
1160 return isInlineConstant(MO, MI.getDesc().operands()[OpIdx].OperandType);
1161 }
1162
1163 bool isInlineConstant(const MachineInstr &MI, unsigned OpIdx,
1164 int64_t ImmVal) const {
1165 if (OpIdx >= MI.getDesc().NumOperands)
1166 return false;
1167
1168 if (isCopyInstr(MI)) {
1169 unsigned Size = getOpSize(MI, OpIdx);
1170 assert(Size == 8 || Size == 4);
1171
1172 uint8_t OpType = (Size == 8) ?
1174 return isInlineConstant(ImmVal, OpType);
1175 }
1176
1177 return isInlineConstant(ImmVal, MI.getDesc().operands()[OpIdx].OperandType);
1178 }
1179
1180 bool isInlineConstant(const MachineInstr &MI, unsigned OpIdx,
1181 const MachineOperand &MO) const {
1182 return isInlineConstant(MI, OpIdx, MO.getImm());
1183 }
1184
1185 bool isInlineConstant(const MachineOperand &MO) const {
1186 return isInlineConstant(*MO.getParent(), MO.getOperandNo());
1187 }
1188
1189 bool isImmOperandLegal(const MCInstrDesc &InstDesc, unsigned OpNo,
1190 const MachineOperand &MO) const;
1191
1192 bool isLiteralOperandLegal(const MCInstrDesc &InstDesc,
1193 const MCOperandInfo &OpInfo) const;
1194
1195 bool isImmOperandLegal(const MCInstrDesc &InstDesc, unsigned OpNo,
1196 int64_t ImmVal) const;
1197
1198 bool isImmOperandLegal(const MachineInstr &MI, unsigned OpNo,
1199 const MachineOperand &MO) const {
1200 return isImmOperandLegal(MI.getDesc(), OpNo, MO);
1201 }
1202
1203 /// Check if this immediate value can be used for AV_MOV_B64_IMM_PSEUDO.
1204 bool isLegalAV64PseudoImm(uint64_t Imm) const;
1205
1206 /// Return true if this 64-bit VALU instruction has a 32-bit encoding.
1207 /// This function will return false if you pass it a 32-bit instruction.
1208 bool hasVALU32BitEncoding(unsigned Opcode) const;
1209
1210 bool physRegUsesConstantBus(const MachineOperand &Reg) const;
1212 const MachineRegisterInfo &MRI) const;
1213
1214 /// Returns true if this operand uses the constant bus.
1216 const MachineOperand &MO,
1217 const MCOperandInfo &OpInfo) const;
1218
1220 int OpIdx) const {
1221 return usesConstantBus(MRI, MI.getOperand(OpIdx),
1222 MI.getDesc().operands()[OpIdx]);
1223 }
1224
1225 /// Return true if this instruction has any modifiers.
1226 /// e.g. src[012]_mod, omod, clamp.
1227 bool hasModifiers(unsigned Opcode) const;
1228
1229 bool hasModifiersSet(const MachineInstr &MI, AMDGPU::OpName OpName) const;
1230 bool hasAnyModifiersSet(const MachineInstr &MI) const;
1231
1232 bool canShrink(const MachineInstr &MI,
1233 const MachineRegisterInfo &MRI) const;
1234
1236 unsigned NewOpcode) const;
1237
1238 bool verifyInstruction(const MachineInstr &MI,
1239 StringRef &ErrInfo) const override;
1240
1241 unsigned getVALUOp(const MachineInstr &MI) const;
1242
1245 const DebugLoc &DL, Register Reg, bool IsSCCLive,
1246 SlotIndexes *Indexes = nullptr) const;
1247
1250 Register Reg, SlotIndexes *Indexes = nullptr) const;
1251
1253
1254 /// Return the correct register class for \p OpNo. For target-specific
1255 /// instructions, this will return the register class that has been defined
1256 /// in tablegen. For generic instructions, like REG_SEQUENCE it will return
1257 /// the register class of its machine operand.
1258 /// to infer the correct register class base on the other operands.
1260 unsigned OpNo) const;
1261
1262 /// Return the size in bytes of the operand OpNo on the given
1263 // instruction opcode.
1264 unsigned getOpSize(uint16_t Opcode, unsigned OpNo) const {
1265 const MCOperandInfo &OpInfo = get(Opcode).operands()[OpNo];
1266
1267 if (OpInfo.RegClass == -1) {
1268 // If this is an immediate operand, this must be a 32-bit literal.
1269 assert(OpInfo.OperandType == MCOI::OPERAND_IMMEDIATE);
1270 return 4;
1271 }
1272
1273 return RI.getRegSizeInBits(*RI.getRegClass(OpInfo.RegClass)) / 8;
1274 }
1275
1276 /// This form should usually be preferred since it handles operands
1277 /// with unknown register classes.
1278 unsigned getOpSize(const MachineInstr &MI, unsigned OpNo) const {
1279 const MachineOperand &MO = MI.getOperand(OpNo);
1280 if (MO.isReg()) {
1281 if (unsigned SubReg = MO.getSubReg()) {
1282 return RI.getSubRegIdxSize(SubReg) / 8;
1283 }
1284 }
1285 return RI.getRegSizeInBits(*getOpRegClass(MI, OpNo)) / 8;
1286 }
1287
1288 /// Legalize the \p OpIndex operand of this instruction by inserting
1289 /// a MOV. For example:
1290 /// ADD_I32_e32 VGPR0, 15
1291 /// to
1292 /// MOV VGPR1, 15
1293 /// ADD_I32_e32 VGPR0, VGPR1
1294 ///
1295 /// If the operand being legalized is a register, then a COPY will be used
1296 /// instead of MOV.
1297 void legalizeOpWithMove(MachineInstr &MI, unsigned OpIdx) const;
1298
1299 /// Check if \p MO is a legal operand if it was the \p OpIdx Operand
1300 /// for \p MI.
1301 bool isOperandLegal(const MachineInstr &MI, unsigned OpIdx,
1302 const MachineOperand *MO = nullptr) const;
1303
1304 /// Check if \p MO would be a valid operand for the given operand
1305 /// definition \p OpInfo. Note this does not attempt to validate constant bus
1306 /// restrictions (e.g. literal constant usage).
1308 const MCOperandInfo &OpInfo,
1309 const MachineOperand &MO) const;
1310
1311 /// Check if \p MO (a register operand) is a legal register for the
1312 /// given operand description or operand index.
1313 /// The operand index version provide more legality checks
1315 const MCOperandInfo &OpInfo,
1316 const MachineOperand &MO) const;
1317 bool isLegalRegOperand(const MachineInstr &MI, unsigned OpIdx,
1318 const MachineOperand &MO) const;
1319
1320 /// Check if \p MO would be a legal operand for gfx12+ packed math FP32
1321 /// instructions. Packed math FP32 instructions typically accept SGPRs or
1322 /// VGPRs as source operands. On gfx12+, if a source operand uses SGPRs, the
1323 /// HW can only read the first SGPR and use it for both the low and high
1324 /// operations.
1325 /// \p SrcN can be 0, 1, or 2, representing src0, src1, and src2,
1326 /// respectively. If \p MO is nullptr, the operand corresponding to SrcN will
1327 /// be used.
1329 const MachineRegisterInfo &MRI, const MachineInstr &MI, unsigned SrcN,
1330 const MachineOperand *MO = nullptr) const;
1331
1332 /// Legalize operands in \p MI by either commuting it or inserting a
1333 /// copy of src1.
1335
1336 /// Fix operands in \p MI to satisfy constant bus requirements.
1338
1339 /// Copy a value from a VGPR (\p SrcReg) to SGPR. The desired register class
1340 /// for the dst register (\p DstRC) can be optionally supplied. This function
1341 /// can only be used when it is know that the value in SrcReg is same across
1342 /// all threads in the wave.
1343 /// \returns The SGPR register that \p SrcReg was copied to.
1346 const TargetRegisterClass *DstRC = nullptr) const;
1347
1350
1353 const TargetRegisterClass *DstRC,
1355 const DebugLoc &DL) const;
1356
1357 /// Legalize all operands in this instruction. This function may create new
1358 /// instructions and control-flow around \p MI. If present, \p MDT is
1359 /// updated.
1360 /// \returns A new basic block that contains \p MI if new blocks were created.
1362 legalizeOperands(MachineInstr &MI, MachineDominatorTree *MDT = nullptr) const;
1363
1364 /// Change SADDR form of a FLAT \p Inst to its VADDR form if saddr operand
1365 /// was moved to VGPR. \returns true if succeeded.
1366 bool moveFlatAddrToVGPR(MachineInstr &Inst) const;
1367
1368 /// Fix operands in Inst to fix 16bit SALU to VALU lowering.
1370 MachineRegisterInfo &MRI) const;
1371 void legalizeOperandsVALUt16(MachineInstr &Inst, unsigned OpIdx,
1372 MachineRegisterInfo &MRI) const;
1373
1374 /// Replace the instructions opcode with the equivalent VALU
1375 /// opcode. This function will also move the users of MachineInstruntions
1376 /// in the \p WorkList to the VALU if necessary. If present, \p MDT is
1377 /// updated.
1378 void moveToVALU(SIInstrWorklist &Worklist, MachineDominatorTree *MDT) const;
1379
1381 MachineInstr &Inst) const;
1382
1384 MachineBasicBlock::iterator MI) const override;
1385
1387 unsigned Quantity) const override;
1388
1389 void insertReturn(MachineBasicBlock &MBB) const;
1390
1391 /// Build instructions that simulate the behavior of a `s_trap 2` instructions
1392 /// for hardware (namely, gfx11) that runs in PRIV=1 mode. There, s_trap is
1393 /// interpreted as a nop.
1397 const DebugLoc &DL) const;
1398
1399 /// Return the number of wait states that result from executing this
1400 /// instruction.
1401 static unsigned getNumWaitStates(const MachineInstr &MI);
1402
1403 /// Returns the operand named \p Op. If \p MI does not have an
1404 /// operand named \c Op, this function returns nullptr.
1407 AMDGPU::OpName OperandName) const;
1408
1411 AMDGPU::OpName OperandName) const {
1412 return getNamedOperand(const_cast<MachineInstr &>(MI), OperandName);
1413 }
1414
1415 /// Get required immediate operand
1417 AMDGPU::OpName OperandName) const {
1418 int Idx = AMDGPU::getNamedOperandIdx(MI.getOpcode(), OperandName);
1419 return MI.getOperand(Idx).getImm();
1420 }
1421
1424
1425 bool isLowLatencyInstruction(const MachineInstr &MI) const;
1426 bool isHighLatencyDef(int Opc) const override;
1427
1428 /// Return the descriptor of the target-specific machine instruction
1429 /// that corresponds to the specified pseudo or native opcode.
1430 const MCInstrDesc &getMCOpcodeFromPseudo(unsigned Opcode) const {
1431 return get(pseudoToMCOpcode(Opcode));
1432 }
1433
1434 Register isStackAccess(const MachineInstr &MI, int &FrameIndex) const;
1435 Register isSGPRStackAccess(const MachineInstr &MI, int &FrameIndex) const;
1436
1438 int &FrameIndex) const override;
1440 int &FrameIndex) const override;
1441
1442 unsigned getInstBundleSize(const MachineInstr &MI) const;
1443 unsigned getInstSizeInBytes(const MachineInstr &MI) const override;
1444
1445 bool mayAccessFlatAddressSpace(const MachineInstr &MI) const;
1446
1447 std::pair<unsigned, unsigned>
1448 decomposeMachineOperandsTargetFlags(unsigned TF) const override;
1449
1451 getSerializableTargetIndices() const override;
1452
1455
1458
1461 const ScheduleDAG *DAG) const override;
1462
1464 CreateTargetPostRAHazardRecognizer(const MachineFunction &MF) const override;
1465
1468 const ScheduleDAGMI *DAG) const override;
1469
1471 const MachineFunction &MF) const override;
1472
1474 Register Reg = Register()) const override;
1475
1478 const DebugLoc &DL, Register Src,
1479 Register Dst) const override;
1480
1483 const DebugLoc &DL, Register Src,
1484 unsigned SrcSubReg,
1485 Register Dst) const override;
1486
1487 bool isWave32() const;
1488
1489 /// Return a partially built integer add instruction without carry.
1490 /// Caller must add source operands.
1491 /// For pre-GFX9 it will generate unused carry destination operand.
1492 /// TODO: After GFX9 it should return a no-carry operation.
1495 const DebugLoc &DL,
1496 Register DestReg) const;
1497
1500 const DebugLoc &DL,
1501 Register DestReg,
1502 RegScavenger &RS) const;
1503
1504 static bool isKillTerminator(unsigned Opcode);
1505 const MCInstrDesc &getKillTerminatorFromPseudo(unsigned Opcode) const;
1506
1507 bool isLegalMUBUFImmOffset(unsigned Imm) const;
1508
1509 static unsigned getMaxMUBUFImmOffset(const GCNSubtarget &ST);
1510
1511 bool splitMUBUFOffset(uint32_t Imm, uint32_t &SOffset, uint32_t &ImmOffset,
1512 Align Alignment = Align(4)) const;
1513
1514 /// Returns if \p Offset is legal for the subtarget as the offset to a FLAT
1515 /// encoded instruction with the given \p FlatVariant.
1516 bool isLegalFLATOffset(int64_t Offset, unsigned AddrSpace,
1517 uint64_t FlatVariant) const;
1518
1519 /// Split \p COffsetVal into {immediate offset field, remainder offset}
1520 /// values.
1521 std::pair<int64_t, int64_t> splitFlatOffset(int64_t COffsetVal,
1522 unsigned AddrSpace,
1523 uint64_t FlatVariant) const;
1524
1525 /// Returns true if negative offsets are allowed for the given \p FlatVariant.
1526 bool allowNegativeFlatOffset(uint64_t FlatVariant) const;
1527
1528 /// \brief Return a target-specific opcode if Opcode is a pseudo instruction.
1529 /// Return -1 if the target-specific opcode for the pseudo instruction does
1530 /// not exist. If Opcode is not a pseudo instruction, this is identity.
1531 int pseudoToMCOpcode(int Opcode) const;
1532
1533 /// \brief Check if this instruction should only be used by assembler.
1534 /// Return true if this opcode should not be used by codegen.
1535 bool isAsmOnlyOpcode(int MCOp) const;
1536
1537 const TargetRegisterClass *getRegClass(const MCInstrDesc &TID, unsigned OpNum,
1538 const TargetRegisterInfo *TRI,
1539 const MachineFunction &MF)
1540 const override;
1541
1542 void fixImplicitOperands(MachineInstr &MI) const;
1543
1547 int FrameIndex,
1548 LiveIntervals *LIS = nullptr,
1549 VirtRegMap *VRM = nullptr) const override;
1550
1551 unsigned getInstrLatency(const InstrItineraryData *ItinData,
1552 const MachineInstr &MI,
1553 unsigned *PredCost = nullptr) const override;
1554
1556 getInstructionUniformity(const MachineInstr &MI) const override final;
1557
1560
1561 const MIRFormatter *getMIRFormatter() const override {
1562 if (!Formatter)
1563 Formatter = std::make_unique<AMDGPUMIRFormatter>();
1564 return Formatter.get();
1565 }
1566
1567 static unsigned getDSShaderTypeValue(const MachineFunction &MF);
1568
1569 const TargetSchedModel &getSchedModel() const { return SchedModel; }
1570
1571 // Enforce operand's \p OpName even alignment if required by target.
1572 // This is used if an operand is a 32 bit register but needs to be aligned
1573 // regardless.
1574 void enforceOperandRCAlignment(MachineInstr &MI, AMDGPU::OpName OpName) const;
1575};
1576
1577/// \brief Returns true if a reg:subreg pair P has a TRC class
1579 const TargetRegisterClass &TRC,
1581 auto *RC = MRI.getRegClass(P.Reg);
1582 if (!P.SubReg)
1583 return RC == &TRC;
1584 auto *TRI = MRI.getTargetRegisterInfo();
1585 return RC == TRI->getMatchingSuperRegClass(RC, &TRC, P.SubReg);
1586}
1587
1588/// \brief Create RegSubRegPair from a register MachineOperand
1589inline
1591 assert(O.isReg());
1592 return TargetInstrInfo::RegSubRegPair(O.getReg(), O.getSubReg());
1593}
1594
1595/// \brief Return the SubReg component from REG_SEQUENCE
1596TargetInstrInfo::RegSubRegPair getRegSequenceSubReg(MachineInstr &MI,
1597 unsigned SubReg);
1598
1599/// \brief Return the defining instruction for a given reg:subreg pair
1600/// skipping copy like instructions and subreg-manipulation pseudos.
1601/// Following another subreg of a reg:subreg isn't supported.
1602MachineInstr *getVRegSubRegDef(const TargetInstrInfo::RegSubRegPair &P,
1603 MachineRegisterInfo &MRI);
1604
1605/// \brief Return false if EXEC is not changed between the def of \p VReg at \p
1606/// DefMI and the use at \p UseMI. Should be run on SSA. Currently does not
1607/// attempt to track between blocks.
1608bool execMayBeModifiedBeforeUse(const MachineRegisterInfo &MRI,
1609 Register VReg,
1610 const MachineInstr &DefMI,
1611 const MachineInstr &UseMI);
1612
1613/// \brief Return false if EXEC is not changed between the def of \p VReg at \p
1614/// DefMI and all its uses. Should be run on SSA. Currently does not attempt to
1615/// track between blocks.
1616bool execMayBeModifiedBeforeAnyUse(const MachineRegisterInfo &MRI,
1617 Register VReg,
1618 const MachineInstr &DefMI);
1619
1620namespace AMDGPU {
1621
1623 int getVOPe64(uint16_t Opcode);
1624
1626 int getVOPe32(uint16_t Opcode);
1627
1629 int getSDWAOp(uint16_t Opcode);
1630
1633
1636
1639
1642
1645
1648
1649 /// Check if \p Opcode is an Addr64 opcode.
1650 ///
1651 /// \returns \p Opcode if it is an Addr64 opcode, otherwise -1.
1654
1656 int getSOPKOp(uint16_t Opcode);
1657
1658 /// \returns SADDR form of a FLAT Global instruction given an \p Opcode
1659 /// of a VADDR form.
1662
1663 /// \returns VADDR form of a FLAT Global instruction given an \p Opcode
1664 /// of a SADDR form.
1667
1670
1671 /// \returns ST form with only immediate offset of a FLAT Scratch instruction
1672 /// given an \p Opcode of an SS (SADDR) form.
1675
1676 /// \returns SV (VADDR) form of a FLAT Scratch instruction given an \p Opcode
1677 /// of an SVS (SADDR + VADDR) form.
1680
1681 /// \returns SS (SADDR) form of a FLAT Scratch instruction given an \p Opcode
1682 /// of an SV (VADDR) form.
1685
1686 /// \returns SV (VADDR) form of a FLAT Scratch instruction given an \p Opcode
1687 /// of an SS (SADDR) form.
1690
1691 /// \returns earlyclobber version of a MAC MFMA is exists.
1694
1695 /// \returns Version of an MFMA instruction which uses AGPRs for srcC and
1696 /// vdst, given an \p Opcode of an MFMA which uses VGPRs for srcC/vdst.
1699
1700 /// \returns v_cmpx version of a v_cmp instruction.
1703
1704 const uint64_t RSRC_DATA_FORMAT = 0xf00000000000LL;
1707 const uint64_t RSRC_TID_ENABLE = UINT64_C(1) << (32 + 23);
1708
1709} // end namespace AMDGPU
1710
1711namespace AMDGPU {
1713 // For sgpr to vgpr spill instructions
1715};
1716} // namespace AMDGPU
1717
1718namespace SI {
1720
1721/// Offsets in bytes from the start of the input buffer
1733
1734} // end namespace KernelInputOffsets
1735} // end namespace SI
1736
1737} // end namespace llvm
1738
1739#endif // LLVM_LIB_TARGET_AMDGPU_SIINSTRINFO_H
unsigned SubReg
unsigned const MachineRegisterInfo * MRI
MachineInstrBuilder & UseMI
MachineInstrBuilder MachineInstrBuilder & DefMI
assert(UImm &&(UImm !=~static_cast< T >(0)) &&"Invalid immediate!")
Provides AMDGPU specific target descriptions.
AMDGPU specific overrides of MIRFormatter.
MachineBasicBlock & MBB
MachineBasicBlock MachineBasicBlock::iterator DebugLoc DL
MachineBasicBlock MachineBasicBlock::iterator MBBI
#define LLVM_READONLY
Definition Compiler.h:322
IRTranslator LLVM IR MI
const AbstractManglingParser< Derived, Alloc >::OperatorInfo AbstractManglingParser< Derived, Alloc >::Ops[]
#define I(x, y, z)
Definition MD5.cpp:58
Register Reg
Register const TargetRegisterInfo * TRI
Promote Memory to Register
Definition Mem2Reg.cpp:110
MachineInstr unsigned OpIdx
uint64_t IntrinsicInst * II
#define P(N)
const SmallVectorImpl< MachineOperand > MachineBasicBlock * TBB
const SmallVectorImpl< MachineOperand > & Cond
Interface definition for SIRegisterInfo.
This file implements a set that has insertion order iteration characteristics.
Class for arbitrary precision integers.
Definition APInt.h:78
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...
Definition ArrayRef.h:41
A debug info location.
Definition DebugLoc.h:124
Itinerary data supplied by a subtarget to be used by a target.
Describe properties that are true of each instruction in the target description file.
This holds information about one operand of a machine instruction, indicating the register class for ...
Definition MCInstrDesc.h:86
MIRFormater - Interface to format MIR operand based on target.
MachineInstrBundleIterator< MachineInstr > iterator
DominatorTree Class - Concrete subclass of DominatorTreeBase that is used to compute a normal dominat...
MachineRegisterInfo & getRegInfo()
getRegInfo - Return information about the registers currently in use.
Representation of each machine instruction.
Flags
Flags values. These may be or'd together.
MachineOperand class - Representation of each machine instruction operand.
unsigned getSubReg() const
LLVM_ABI unsigned getOperandNo() const
Returns the index of this operand in the instruction that it belongs to.
int64_t getImm() const
bool isReg() const
isReg - Tests if this is a MO_Register operand.
bool isImm() const
isImm - Tests if this is a MO_Immediate operand.
MachineInstr * getParent()
getParent - Return the instruction that this operand belongs to.
MachineRegisterInfo - Keep track of information for virtual and physical registers,...
Wrapper class representing virtual and physical registers.
Definition Register.h:19
Represents one node in the SelectionDAG.
bool isLegalMUBUFImmOffset(unsigned Imm) const
bool isFLATGlobal(uint16_t Opcode) const
bool isInlineConstant(const APInt &Imm) const
static bool isMAI(const MachineInstr &MI)
void legalizeOperandsVOP3(MachineRegisterInfo &MRI, MachineInstr &MI) const
Fix operands in MI to satisfy constant bus requirements.
static bool isDS(const MachineInstr &MI)
static bool isVMEM(const MachineInstr &MI)
MachineBasicBlock * legalizeOperands(MachineInstr &MI, MachineDominatorTree *MDT=nullptr) const
Legalize all operands in this instruction.
bool areLoadsFromSameBasePtr(SDNode *Load0, SDNode *Load1, int64_t &Offset0, int64_t &Offset1) const override
static bool isVOP3(const MachineInstr &MI)
unsigned getLiveRangeSplitOpcode(Register Reg, const MachineFunction &MF) const override
bool isSMRD(uint16_t Opcode) const
bool getMemOperandsWithOffsetWidth(const MachineInstr &LdSt, SmallVectorImpl< const MachineOperand * > &BaseOps, int64_t &Offset, bool &OffsetIsScalable, LocationSize &Width, const TargetRegisterInfo *TRI) const final
Register isSGPRStackAccess(const MachineInstr &MI, int &FrameIndex) const
unsigned getInstSizeInBytes(const MachineInstr &MI) const override
static bool isNeverUniform(const MachineInstr &MI)
unsigned getOpSize(uint16_t Opcode, unsigned OpNo) const
Return the size in bytes of the operand OpNo on the given.
bool isAtomic(uint16_t Opcode) const
bool isXDLWMMA(const MachineInstr &MI) const
bool isBasicBlockPrologue(const MachineInstr &MI, Register Reg=Register()) const override
bool isLDSDIR(uint16_t Opcode) const
bool isFLATScratch(uint16_t Opcode) const
uint64_t getDefaultRsrcDataFormat() const
static bool isSOPP(const MachineInstr &MI)
InstructionUniformity getGenericInstructionUniformity(const MachineInstr &MI) const
bool hasVGPRUses(const MachineInstr &MI) const
uint64_t getClampMask(const MachineInstr &MI) const
bool isIGLP(unsigned Opcode) const
static bool isFLATScratch(const MachineInstr &MI)
const MCInstrDesc & getIndirectRegWriteMovRelPseudo(unsigned VecSize, unsigned EltSize, bool IsSGPR) const
static bool isSpill(const MachineInstr &MI)
MachineInstrBuilder getAddNoCarry(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, const DebugLoc &DL, Register DestReg) const
Return a partially built integer add instruction without carry.
bool mayAccessFlatAddressSpace(const MachineInstr &MI) const
bool shouldScheduleLoadsNear(SDNode *Load0, SDNode *Load1, int64_t Offset0, int64_t Offset1, unsigned NumLoads) const override
bool splitMUBUFOffset(uint32_t Imm, uint32_t &SOffset, uint32_t &ImmOffset, Align Alignment=Align(4)) const
ArrayRef< std::pair< unsigned, const char * > > getSerializableDirectMachineOperandTargetFlags() const override
void moveToVALU(SIInstrWorklist &Worklist, MachineDominatorTree *MDT) const
Replace the instructions opcode with the equivalent VALU opcode.
static bool isSMRD(const MachineInstr &MI)
void restoreExec(MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, const DebugLoc &DL, Register Reg, SlotIndexes *Indexes=nullptr) const
bool isVGPRSpill(uint16_t Opcode) const
bool usesConstantBus(const MachineRegisterInfo &MRI, const MachineOperand &MO, const MCOperandInfo &OpInfo) const
Returns true if this operand uses the constant bus.
static unsigned getMaxMUBUFImmOffset(const GCNSubtarget &ST)
Register isStoreToStackSlot(const MachineInstr &MI, int &FrameIndex) const override
bool mayAccessScratchThroughFlat(const MachineInstr &MI) const
void legalizeOperandsFLAT(MachineRegisterInfo &MRI, MachineInstr &MI) const
bool optimizeCompareInstr(MachineInstr &CmpInstr, Register SrcReg, Register SrcReg2, int64_t CmpMask, int64_t CmpValue, const MachineRegisterInfo *MRI) const override
bool isSegmentSpecificFLAT(uint16_t Opcode) const
bool usesConstantBus(const MachineRegisterInfo &MRI, const MachineInstr &MI, int OpIdx) const
bool isVSAMPLE(uint16_t Opcode) const
static std::optional< int64_t > extractSubregFromImm(int64_t ImmVal, unsigned SubRegIndex)
Return the extracted immediate value in a subregister use from a constant materialized in a super reg...
Register isStackAccess(const MachineInstr &MI, int &FrameIndex) const
bool isPacked(uint16_t Opcode) const
static bool isMTBUF(const MachineInstr &MI)
const MCInstrDesc & getIndirectGPRIDXPseudo(unsigned VecSize, bool IsIndirectSrc) const
void insertReturn(MachineBasicBlock &MBB) const
static bool isDGEMM(unsigned Opcode)
static bool isEXP(const MachineInstr &MI)
static bool isSALU(const MachineInstr &MI)
bool isVIMAGE(uint16_t Opcode) const
void legalizeGenericOperand(MachineBasicBlock &InsertMBB, MachineBasicBlock::iterator I, const TargetRegisterClass *DstRC, MachineOperand &Op, MachineRegisterInfo &MRI, const DebugLoc &DL) const
MachineInstr * buildShrunkInst(MachineInstr &MI, unsigned NewOpcode) const
unsigned getInstBundleSize(const MachineInstr &MI) const
static bool isVOP2(const MachineInstr &MI)
bool analyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB, MachineBasicBlock *&FBB, SmallVectorImpl< MachineOperand > &Cond, bool AllowModify=false) const override
static bool isSDWA(const MachineInstr &MI)
bool isSOP1(uint16_t Opcode) const
const MCInstrDesc & getKillTerminatorFromPseudo(unsigned Opcode) const
static bool mayWriteLDSThroughDMA(const MachineInstr &MI)
void insertNoops(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, unsigned Quantity) const override
static bool isVINTRP(const MachineInstr &MI)
bool isIGLPMutationOnly(unsigned Opcode) const
bool isSWMMAC(uint16_t Opcode) const
bool isAtomicRet(uint16_t Opcode) const
static bool isGather4(const MachineInstr &MI)
MachineInstr * getWholeWaveFunctionSetup(MachineFunction &MF) const
static bool isMFMAorWMMA(const MachineInstr &MI)
static bool isWQM(const MachineInstr &MI)
static bool doesNotReadTiedSource(const MachineInstr &MI)
bool isLegalVSrcOperand(const MachineRegisterInfo &MRI, const MCOperandInfo &OpInfo, const MachineOperand &MO) const
Check if MO would be a valid operand for the given operand definition OpInfo.
bool isSOPC(uint16_t Opcode) const
static bool isDOT(const MachineInstr &MI)
static bool usesFPDPRounding(const MachineInstr &MI)
bool isFixedSize(uint16_t Opcode) const
bool isImage(uint16_t Opcode) const
MachineInstr * createPHISourceCopy(MachineBasicBlock &MBB, MachineBasicBlock::iterator InsPt, const DebugLoc &DL, Register Src, unsigned SrcSubReg, Register Dst) const override
bool isGWS(uint16_t Opcode) const
bool isInlineConstant(const MachineOperand &MO) const
bool hasModifiers(unsigned Opcode) const
Return true if this instruction has any modifiers.
bool isVOP3(uint16_t Opcode) const
bool shouldClusterMemOps(ArrayRef< const MachineOperand * > BaseOps1, int64_t Offset1, bool OffsetIsScalable1, ArrayRef< const MachineOperand * > BaseOps2, int64_t Offset2, bool OffsetIsScalable2, unsigned ClusterSize, unsigned NumBytes) const override
static bool isSWMMAC(const MachineInstr &MI)
ScheduleHazardRecognizer * CreateTargetMIHazardRecognizer(const InstrItineraryData *II, const ScheduleDAGMI *DAG) const override
bool isDOT(uint16_t Opcode) const
bool isWave32() const
bool isHighLatencyDef(int Opc) const override
void legalizeOpWithMove(MachineInstr &MI, unsigned OpIdx) const
Legalize the OpIndex operand of this instruction by inserting a MOV.
bool reverseBranchCondition(SmallVectorImpl< MachineOperand > &Cond) const override
static bool isVOPC(const MachineInstr &MI)
void removeModOperands(MachineInstr &MI) const
bool isInlineConstant(const MachineInstr &MI, unsigned OpIdx, int64_t ImmVal) const
std::pair< int64_t, int64_t > splitFlatOffset(int64_t COffsetVal, unsigned AddrSpace, uint64_t FlatVariant) const
Split COffsetVal into {immediate offset field, remainder offset} values.
bool isGather4(uint16_t Opcode) const
bool isSpill(uint16_t Opcode) const
unsigned getVectorRegSpillRestoreOpcode(Register Reg, const TargetRegisterClass *RC, unsigned Size, const SIMachineFunctionInfo &MFI) const
bool isXDL(const MachineInstr &MI) const
bool isFLAT(uint16_t Opcode) const
static bool isVIMAGE(const MachineInstr &MI)
static bool isLDSDIR(const MachineInstr &MI)
void enforceOperandRCAlignment(MachineInstr &MI, AMDGPU::OpName OpName) const
static bool isSOP2(const MachineInstr &MI)
LLVM_READONLY const MachineOperand * getNamedOperand(const MachineInstr &MI, AMDGPU::OpName OperandName) const
static bool isGWS(const MachineInstr &MI)
bool isLegalAV64PseudoImm(uint64_t Imm) const
Check if this immediate value can be used for AV_MOV_B64_IMM_PSEUDO.
const TargetSchedModel & getSchedModel() const
bool isVOPC(uint16_t Opcode) const
bool isInlineConstant(const MachineInstr &MI, const MachineOperand &UseMO, const MachineOperand &DefMO) const
returns true if UseMO is substituted with DefMO in MI it would be an inline immediate.
const MIRFormatter * getMIRFormatter() const override
bool hasModifiersSet(const MachineInstr &MI, AMDGPU::OpName OpName) const
const TargetRegisterClass * getPreferredSelectRegClass(unsigned Size) const
bool isLegalToSwap(const MachineInstr &MI, unsigned fromIdx, unsigned toIdx) const
bool isReallyTriviallyReMaterializable(const MachineInstr &MI) const override
bool isMAI(uint16_t Opcode) const
static bool isFLATGlobal(const MachineInstr &MI)
unsigned getMachineCSELookAheadLimit() const override
bool isGlobalMemoryObject(const MachineInstr *MI) const override
static bool isVSAMPLE(const MachineInstr &MI)
static bool isAtomicRet(const MachineInstr &MI)
bool isBufferSMRD(const MachineInstr &MI) const
static bool isKillTerminator(unsigned Opcode)
bool findCommutedOpIndices(const MachineInstr &MI, unsigned &SrcOpIdx0, unsigned &SrcOpIdx1) const override
const GCNSubtarget & getSubtarget() const
bool isDS(uint16_t Opcode) const
void storeRegToStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, Register SrcReg, bool isKill, int FrameIndex, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI, Register VReg, MachineInstr::MIFlag Flags=MachineInstr::NoFlags) const override
void insertScratchExecCopy(MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, const DebugLoc &DL, Register Reg, bool IsSCCLive, SlotIndexes *Indexes=nullptr) const
bool isFPAtomic(uint16_t Opcode) const
bool hasVALU32BitEncoding(unsigned Opcode) const
Return true if this 64-bit VALU instruction has a 32-bit encoding.
static bool isDisableWQM(const MachineInstr &MI)
bool isAtomicNoRet(uint16_t Opcode) const
unsigned getMovOpcode(const TargetRegisterClass *DstRC) const
void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, Register DestReg, unsigned SubIdx, const MachineInstr &Orig, const TargetRegisterInfo &TRI) const override
unsigned buildExtractSubReg(MachineBasicBlock::iterator MI, MachineRegisterInfo &MRI, const MachineOperand &SuperReg, const TargetRegisterClass *SuperRC, unsigned SubIdx, const TargetRegisterClass *SubRC) const
void legalizeOperandsVOP2(MachineRegisterInfo &MRI, MachineInstr &MI) const
Legalize operands in MI by either commuting it or inserting a copy of src1.
bool foldImmediate(MachineInstr &UseMI, MachineInstr &DefMI, Register Reg, MachineRegisterInfo *MRI) const final
static bool isTRANS(const MachineInstr &MI)
static bool isImage(const MachineInstr &MI)
static bool isSOPK(const MachineInstr &MI)
const TargetRegisterClass * getOpRegClass(const MachineInstr &MI, unsigned OpNo) const
Return the correct register class for OpNo.
MachineBasicBlock * insertSimulatedTrap(MachineRegisterInfo &MRI, MachineBasicBlock &MBB, MachineInstr &MI, const DebugLoc &DL) const
Build instructions that simulate the behavior of a s_trap 2 instructions for hardware (namely,...
static unsigned getNonSoftWaitcntOpcode(unsigned Opcode)
bool isInlineConstant(const MachineInstr &MI, unsigned OpIdx) const
returns true if the operand OpIdx in MI is a valid inline immediate.
static unsigned getDSShaderTypeValue(const MachineFunction &MF)
static bool isFoldableCopy(const MachineInstr &MI)
bool isIgnorableUse(const MachineOperand &MO) const override
static bool isVINTERP(const MachineInstr &MI)
static bool isMUBUF(const MachineInstr &MI)
bool expandPostRAPseudo(MachineInstr &MI) const override
bool analyzeCompare(const MachineInstr &MI, Register &SrcReg, Register &SrcReg2, int64_t &CmpMask, int64_t &CmpValue) const override
bool isSALU(uint16_t Opcode) const
bool isVOP2(uint16_t Opcode) const
static bool hasFPClamp(const MachineInstr &MI)
InstructionUniformity getInstructionUniformity(const MachineInstr &MI) const override final
static bool isSegmentSpecificFLAT(const MachineInstr &MI)
static bool isWaitcnt(unsigned Opcode)
static bool isVOP3(const MCInstrDesc &Desc)
bool isSDWA(uint16_t Opcode) const
unsigned getOpSize(const MachineInstr &MI, unsigned OpNo) const
This form should usually be preferred since it handles operands with unknown register classes.
bool physRegUsesConstantBus(const MachineOperand &Reg) const
bool isInlineConstant(const MachineOperand &MO, const MCOperandInfo &OpInfo) const
bool isSOPK(uint16_t Opcode) const
static bool isF16PseudoScalarTrans(unsigned Opcode)
void insertSelect(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, const DebugLoc &DL, Register DstReg, ArrayRef< MachineOperand > Cond, Register TrueReg, Register FalseReg) const override
static bool isChainCallOpcode(uint64_t Opcode)
static bool isDPP(const MachineInstr &MI)
bool analyzeBranchImpl(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, MachineBasicBlock *&TBB, MachineBasicBlock *&FBB, SmallVectorImpl< MachineOperand > &Cond, bool AllowModify) const
static bool isMFMA(const MachineInstr &MI)
bool isSGPRSpill(uint16_t Opcode) const
bool isLowLatencyInstruction(const MachineInstr &MI) const
bool isIGLP(const MachineInstr &MI) const
static bool isScalarStore(const MachineInstr &MI)
bool isTRANS(uint16_t Opcode) const
bool isLDSDMA(uint16_t Opcode)
std::optional< DestSourcePair > isCopyInstrImpl(const MachineInstr &MI) const override
If the specific machine instruction is a instruction that moves/copies value from one register to ano...
bool isSOP2(uint16_t Opcode) const
bool isVALU(uint16_t Opcode) const
bool isVOP1(uint16_t Opcode) const
bool isAlwaysGDS(uint16_t Opcode) const
static bool isMAI(const MCInstrDesc &Desc)
bool isMUBUF(uint16_t Opcode) const
static bool isFPAtomic(const MachineInstr &MI)
static bool usesLGKM_CNT(const MachineInstr &MI)
Register isLoadFromStackSlot(const MachineInstr &MI, int &FrameIndex) const override
void legalizeOperandsVALUt16(MachineInstr &Inst, MachineRegisterInfo &MRI) const
Fix operands in Inst to fix 16bit SALU to VALU lowering.
void moveToVALUImpl(SIInstrWorklist &Worklist, MachineDominatorTree *MDT, MachineInstr &Inst) const
bool isImmOperandLegal(const MCInstrDesc &InstDesc, unsigned OpNo, const MachineOperand &MO) const
static bool isPacked(const MachineInstr &MI)
bool canShrink(const MachineInstr &MI, const MachineRegisterInfo &MRI) const
static bool isBlockLoadStore(uint16_t Opcode)
bool isAsmOnlyOpcode(int MCOp) const
Check if this instruction should only be used by assembler.
bool isWMMA(uint16_t Opcode) const
bool isMTBUF(uint16_t Opcode) const
bool isDisableWQM(uint16_t Opcode) const
static bool isVGPRSpill(const MachineInstr &MI)
ScheduleHazardRecognizer * CreateTargetPostRAHazardRecognizer(const InstrItineraryData *II, const ScheduleDAG *DAG) const override
This is used by the post-RA scheduler (SchedulePostRAList.cpp).
bool verifyInstruction(const MachineInstr &MI, StringRef &ErrInfo) const override
bool isLegalFLATOffset(int64_t Offset, unsigned AddrSpace, uint64_t FlatVariant) const
Returns if Offset is legal for the subtarget as the offset to a FLAT encoded instruction with the giv...
static bool isWWMRegSpillOpcode(uint16_t Opcode)
unsigned getInstrLatency(const InstrItineraryData *ItinData, const MachineInstr &MI, unsigned *PredCost=nullptr) const override
bool isVMEM(uint16_t Opcode) const
MachineInstr * foldMemoryOperandImpl(MachineFunction &MF, MachineInstr &MI, ArrayRef< unsigned > Ops, MachineBasicBlock::iterator InsertPt, int FrameIndex, LiveIntervals *LIS=nullptr, VirtRegMap *VRM=nullptr) const override
int64_t getNamedImmOperand(const MachineInstr &MI, AMDGPU::OpName OperandName) const
Get required immediate operand.
ArrayRef< std::pair< int, const char * > > getSerializableTargetIndices() const override
bool isVINTRP(uint16_t Opcode) const
bool isVGPRCopy(const MachineInstr &MI) const
bool isScalarStore(uint16_t Opcode) const
bool regUsesConstantBus(const MachineOperand &Reg, const MachineRegisterInfo &MRI) const
static bool isMIMG(const MachineInstr &MI)
MachineOperand buildExtractSubRegOrImm(MachineBasicBlock::iterator MI, MachineRegisterInfo &MRI, const MachineOperand &SuperReg, const TargetRegisterClass *SuperRC, unsigned SubIdx, const TargetRegisterClass *SubRC) const
bool isSchedulingBoundary(const MachineInstr &MI, const MachineBasicBlock *MBB, const MachineFunction &MF) const override
void loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, Register DestReg, int FrameIndex, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI, Register VReg, MachineInstr::MIFlag Flags=MachineInstr::NoFlags) const override
bool isLegalRegOperand(const MachineRegisterInfo &MRI, const MCOperandInfo &OpInfo, const MachineOperand &MO) const
Check if MO (a register operand) is a legal register for the given operand description or operand ind...
bool allowNegativeFlatOffset(uint64_t FlatVariant) const
Returns true if negative offsets are allowed for the given FlatVariant.
LLVM_READONLY int commuteOpcode(const MachineInstr &MI) const
static unsigned getNumWaitStates(const MachineInstr &MI)
Return the number of wait states that result from executing this instruction.
const TargetRegisterClass * getRegClass(const MCInstrDesc &TID, unsigned OpNum, const TargetRegisterInfo *TRI, const MachineFunction &MF) const override
static bool isVOP3P(const MachineInstr &MI)
unsigned getVectorRegSpillSaveOpcode(Register Reg, const TargetRegisterClass *RC, unsigned Size, const SIMachineFunctionInfo &MFI) const
bool isWQM(uint16_t Opcode) const
unsigned getVALUOp(const MachineInstr &MI) const
static bool modifiesModeRegister(const MachineInstr &MI)
Return true if the instruction modifies the mode register.q.
Register readlaneVGPRToSGPR(Register SrcReg, MachineInstr &UseMI, MachineRegisterInfo &MRI, const TargetRegisterClass *DstRC=nullptr) const
Copy a value from a VGPR (SrcReg) to SGPR.
bool hasDivergentBranch(const MachineBasicBlock *MBB) const
Return whether the block terminate with divergent branch.
bool isInlineConstant(const MachineOperand &MO, uint8_t OperandType) const
unsigned removeBranch(MachineBasicBlock &MBB, int *BytesRemoved=nullptr) const override
void fixImplicitOperands(MachineInstr &MI) const
bool moveFlatAddrToVGPR(MachineInstr &Inst) const
Change SADDR form of a FLAT Inst to its VADDR form if saddr operand was moved to VGPR.
void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const DebugLoc &DL, Register DestReg, Register SrcReg, bool KillSrc, bool RenamableDest=false, bool RenamableSrc=false) const override
bool isVOP3P(uint16_t Opcode) const
bool swapSourceModifiers(MachineInstr &MI, MachineOperand &Src0, AMDGPU::OpName Src0OpName, MachineOperand &Src1, AMDGPU::OpName Src1OpName) const
bool isEXP(uint16_t Opcode) const
Register insertNE(MachineBasicBlock *MBB, MachineBasicBlock::iterator I, const DebugLoc &DL, Register SrcReg, int Value) const
MachineBasicBlock * getBranchDestBlock(const MachineInstr &MI) const override
static bool isDualSourceBlendEXP(const MachineInstr &MI)
bool hasUnwantedEffectsWhenEXECEmpty(const MachineInstr &MI) const
This function is used to determine if an instruction can be safely executed under EXEC = 0 without ha...
bool getConstValDefinedInReg(const MachineInstr &MI, const Register Reg, int64_t &ImmVal) const override
static bool isAtomic(const MachineInstr &MI)
bool canInsertSelect(const MachineBasicBlock &MBB, ArrayRef< MachineOperand > Cond, Register DstReg, Register TrueReg, Register FalseReg, int &CondCycles, int &TrueCycles, int &FalseCycles) const override
bool isLiteralOperandLegal(const MCInstrDesc &InstDesc, const MCOperandInfo &OpInfo) const
static bool sopkIsZext(unsigned Opcode)
static bool isSGPRSpill(const MachineInstr &MI)
static bool isWMMA(const MachineInstr &MI)
ArrayRef< std::pair< MachineMemOperand::Flags, const char * > > getSerializableMachineMemOperandTargetFlags() const override
bool isVINTERP(uint16_t Opcode) const
MachineInstr * convertToThreeAddress(MachineInstr &MI, LiveVariables *LV, LiveIntervals *LIS) const override
bool mayReadEXEC(const MachineRegisterInfo &MRI, const MachineInstr &MI) const
Returns true if the instruction could potentially depend on the value of exec.
void legalizeOperandsSMRD(MachineRegisterInfo &MRI, MachineInstr &MI) const
bool isBranchOffsetInRange(unsigned BranchOpc, int64_t BrOffset) const override
bool doesNotReadTiedSource(uint16_t Opcode) const
unsigned insertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB, MachineBasicBlock *FBB, ArrayRef< MachineOperand > Cond, const DebugLoc &DL, int *BytesAdded=nullptr) const override
bool isDPP(uint16_t Opcode) const
void insertVectorSelect(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, const DebugLoc &DL, Register DstReg, ArrayRef< MachineOperand > Cond, Register TrueReg, Register FalseReg) const
void insertNoop(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI) const override
std::pair< MachineInstr *, MachineInstr * > expandMovDPP64(MachineInstr &MI) const
Register insertEQ(MachineBasicBlock *MBB, MachineBasicBlock::iterator I, const DebugLoc &DL, Register SrcReg, int Value) const
static bool isSOP1(const MachineInstr &MI)
static bool isSOPC(const MachineInstr &MI)
static bool isFLAT(const MachineInstr &MI)
const SIRegisterInfo & getRegisterInfo() const
static bool isVALU(const MachineInstr &MI)
bool isBarrier(unsigned Opcode) const
MachineInstr * commuteInstructionImpl(MachineInstr &MI, bool NewMI, unsigned OpIdx0, unsigned OpIdx1) const override
static bool hasIntClamp(const MachineInstr &MI)
int pseudoToMCOpcode(int Opcode) const
Return a target-specific opcode if Opcode is a pseudo instruction.
const MCInstrDesc & getMCOpcodeFromPseudo(unsigned Opcode) const
Return the descriptor of the target-specific machine instruction that corresponds to the specified ps...
bool isImmOperandLegal(const MachineInstr &MI, unsigned OpNo, const MachineOperand &MO) const
bool isInlineConstant(const MachineInstr &MI, unsigned OpIdx, const MachineOperand &MO) const
static bool isScalarUnit(const MachineInstr &MI)
bool isSOPP(uint16_t Opcode) const
bool isLegalGFX12PlusPackedMathFP32Operand(const MachineRegisterInfo &MRI, const MachineInstr &MI, unsigned SrcN, const MachineOperand *MO=nullptr) const
Check if MO would be a legal operand for gfx12+ packed math FP32 instructions.
bool isMIMG(uint16_t Opcode) const
bool hasFPClamp(uint16_t Opcode) const
static bool usesVM_CNT(const MachineInstr &MI)
bool usesFPDPRounding(uint16_t Opcode) const
MachineInstr * createPHIDestinationCopy(MachineBasicBlock &MBB, MachineBasicBlock::iterator InsPt, const DebugLoc &DL, Register Src, Register Dst) const override
static bool isFixedSize(const MachineInstr &MI)
bool isSafeToSink(MachineInstr &MI, MachineBasicBlock *SuccToSinkTo, MachineCycleInfo *CI) const override
LLVM_READONLY int commuteOpcode(unsigned Opc) const
uint64_t getScratchRsrcWords23() const
LLVM_READONLY MachineOperand * getNamedOperand(MachineInstr &MI, AMDGPU::OpName OperandName) const
Returns the operand named Op.
std::pair< unsigned, unsigned > decomposeMachineOperandsTargetFlags(unsigned TF) const override
bool areMemAccessesTriviallyDisjoint(const MachineInstr &MIa, const MachineInstr &MIb) const override
bool isOperandLegal(const MachineInstr &MI, unsigned OpIdx, const MachineOperand *MO=nullptr) const
Check if MO is a legal operand if it was the OpIdx Operand for MI.
bool isBarrierStart(unsigned Opcode) const
static bool isLDSDMA(const MachineInstr &MI)
static bool isAtomicNoRet(const MachineInstr &MI)
static bool isVOP1(const MachineInstr &MI)
SIInstrInfo(const GCNSubtarget &ST)
void insertIndirectBranch(MachineBasicBlock &MBB, MachineBasicBlock &NewDestBB, MachineBasicBlock &RestoreBB, const DebugLoc &DL, int64_t BrOffset, RegScavenger *RS) const override
bool hasAnyModifiersSet(const MachineInstr &MI) const
This class keeps track of the SPI_SP_INPUT_ADDR config register, which tells the hardware which inter...
ScheduleDAGMI is an implementation of ScheduleDAGInstrs that simply schedules machine instructions ac...
HazardRecognizer - This determines whether or not an instruction can be issued this cycle,...
A vector that has set insertion semantics.
Definition SetVector.h:59
SlotIndexes pass.
A SetVector that performs no allocations if smaller than a certain size.
Definition SetVector.h:356
This class consists of common code factored out of the SmallVector class to reduce code duplication b...
StringRef - Represent a constant reference to a string, i.e.
Definition StringRef.h:55
TargetRegisterInfo base class - We assume that the target defines a static array of TargetRegisterDes...
Provide an instruction scheduling machine model to CodeGen passes.
Target - Wrapper for Target specific information.
LLVM Value Representation.
Definition Value.h:75
const uint64_t RSRC_DATA_FORMAT
LLVM_READONLY int getBasicFromSDWAOp(uint16_t Opcode)
LLVM_READONLY int getGlobalSaddrOp(uint16_t Opcode)
LLVM_READONLY int getSOPKOp(uint16_t Opcode)
LLVM_READONLY int getVOPe32(uint16_t Opcode)
LLVM_READONLY int getDPPOp32(uint16_t Opcode)
LLVM_READONLY int getFlatScratchInstSVfromSS(uint16_t Opcode)
LLVM_READONLY int getFlatScratchInstSTfromSS(uint16_t Opcode)
LLVM_READONLY int getGlobalVaddrOp(uint16_t Opcode)
const uint64_t RSRC_ELEMENT_SIZE_SHIFT
LLVM_READONLY int getFlatScratchInstSVfromSVS(uint16_t Opcode)
LLVM_READONLY int getAddr64Inst(uint16_t Opcode)
LLVM_READONLY int getMFMAEarlyClobberOp(uint16_t Opcode)
LLVM_READONLY int getVCMPXOpFromVCMP(uint16_t Opcode)
LLVM_READONLY int getSDWAOp(uint16_t Opcode)
LLVM_READONLY int getMFMASrcCVDstAGPROp(uint16_t Opcode)
const uint64_t RSRC_TID_ENABLE
LLVM_READONLY int getCommuteRev(uint16_t Opcode)
LLVM_READONLY int getDPPOp64(uint16_t Opcode)
LLVM_READONLY int getVOPe64(uint16_t Opcode)
@ OPERAND_REG_IMM_INT64
Definition SIDefines.h:202
@ OPERAND_REG_IMM_INT32
Operands with register, 32-bit, or 64-bit immediate.
Definition SIDefines.h:201
LLVM_READONLY int getCommuteOrig(uint16_t Opcode)
const uint64_t RSRC_INDEX_STRIDE_SHIFT
bool getMAIIsDGEMM(unsigned Opc)
Returns true if MAI operation is a double precision GEMM.
LLVM_READONLY int getFlatScratchInstSSfromSV(uint16_t Opcode)
LLVM_READONLY int getVCMPXNoSDstOp(uint16_t Opcode)
LLVM_READONLY int getIfAddr64Inst(uint16_t Opcode)
Check if Opcode is an Addr64 opcode.
@ OPERAND_IMMEDIATE
Definition MCInstrDesc.h:61
Offsets
Offsets in bytes from the start of the input buffer.
This is an optimization pass for GlobalISel generic memory operations.
@ Offset
Definition DWP.cpp:477
TargetInstrInfo::RegSubRegPair getRegSubRegPair(const MachineOperand &O)
Create RegSubRegPair from a register MachineOperand.
bool execMayBeModifiedBeforeUse(const MachineRegisterInfo &MRI, Register VReg, const MachineInstr &DefMI, const MachineInstr &UseMI)
Return false if EXEC is not changed between the def of VReg at DefMI and the use at UseMI.
Op::Description Desc
TargetInstrInfo::RegSubRegPair getRegSequenceSubReg(MachineInstr &MI, unsigned SubReg)
Return the SubReg component from REG_SEQUENCE.
static const MachineMemOperand::Flags MONoClobber
Mark the MMO of a uniform load if there are no potentially clobbering stores on any path from the sta...
Definition SIInstrInfo.h:44
bool any_of(R &&range, UnaryPredicate P)
Provide wrappers to std::any_of which take ranges instead of having to pass begin/end explicitly.
Definition STLExtras.h:1734
decltype(auto) get(const PointerIntPair< PointerTy, IntBits, IntType, PtrTraits, Info > &Pair)
MachineInstr * getVRegSubRegDef(const TargetInstrInfo::RegSubRegPair &P, MachineRegisterInfo &MRI)
Return the defining instruction for a given reg:subreg pair skipping copy like instructions and subre...
static const MachineMemOperand::Flags MOCooperative
Mark the MMO of cooperative load/store atomics.
Definition SIInstrInfo.h:52
DWARFExpression::Operation Op
constexpr unsigned DefaultMemoryClusterDWordsLimit
Definition SIInstrInfo.h:40
static const MachineMemOperand::Flags MOLastUse
Mark the MMO of a load as the last use.
Definition SIInstrInfo.h:48
bool isOfRegClass(const TargetInstrInfo::RegSubRegPair &P, const TargetRegisterClass &TRC, MachineRegisterInfo &MRI)
Returns true if a reg:subreg pair P has a TRC class.
InstructionUniformity
Enum describing how instructions behave with respect to uniformity and divergence,...
Definition Uniformity.h:18
GenericCycleInfo< MachineSSAContext > MachineCycleInfo
bool execMayBeModifiedBeforeAnyUse(const MachineRegisterInfo &MRI, Register VReg, const MachineInstr &DefMI)
Return false if EXEC is not changed between the def of VReg at DefMI and all its uses.
This struct is a compact representation of a valid (non-zero power of two) alignment.
Definition Alignment.h:39
Utility to store machine instructions worklist.
Definition SIInstrInfo.h:56
MachineInstr * top() const
Definition SIInstrInfo.h:61
bool isDeferred(MachineInstr *MI)
SetVector< MachineInstr * > & getDeferredList()
Definition SIInstrInfo.h:80
void insert(MachineInstr *MI)
A pair composed of a register and a sub-register index.