1 //===- AMDGPUInstructionSelector.cpp ----------------------------*- C++ -*-==//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 /// This file implements the targeting of the InstructionSelector class for
12 /// \todo This should be generated by TableGen.
13 //===----------------------------------------------------------------------===//
15 #include "AMDGPUInstructionSelector.h"
16 #include "AMDGPUInstrInfo.h"
17 #include "AMDGPURegisterBankInfo.h"
18 #include "AMDGPURegisterInfo.h"
19 #include "AMDGPUSubtarget.h"
20 #include "AMDGPUTargetMachine.h"
21 #include "SIMachineFunctionInfo.h"
22 #include "MCTargetDesc/AMDGPUMCTargetDesc.h"
23 #include "llvm/CodeGen/GlobalISel/InstructionSelector.h"
24 #include "llvm/CodeGen/GlobalISel/InstructionSelectorImpl.h"
25 #include "llvm/CodeGen/GlobalISel/Utils.h"
26 #include "llvm/CodeGen/MachineBasicBlock.h"
27 #include "llvm/CodeGen/MachineFunction.h"
28 #include "llvm/CodeGen/MachineInstr.h"
29 #include "llvm/CodeGen/MachineInstrBuilder.h"
30 #include "llvm/CodeGen/MachineRegisterInfo.h"
31 #include "llvm/IR/Type.h"
32 #include "llvm/Support/Debug.h"
33 #include "llvm/Support/raw_ostream.h"
35 #define DEBUG_TYPE "amdgpu-isel"
39 #define GET_GLOBALISEL_IMPL
40 #define AMDGPUSubtarget GCNSubtarget
41 #include "AMDGPUGenGlobalISel.inc"
42 #undef GET_GLOBALISEL_IMPL
43 #undef AMDGPUSubtarget
45 AMDGPUInstructionSelector::AMDGPUInstructionSelector(
46 const GCNSubtarget &STI, const AMDGPURegisterBankInfo &RBI,
47 const AMDGPUTargetMachine &TM)
48 : InstructionSelector(), TII(*STI.getInstrInfo()),
49 TRI(*STI.getRegisterInfo()), RBI(RBI), TM(TM),
51 EnableLateStructurizeCFG(AMDGPUTargetMachine::EnableLateStructurizeCFG),
52 #define GET_GLOBALISEL_PREDICATES_INIT
53 #include "AMDGPUGenGlobalISel.inc"
54 #undef GET_GLOBALISEL_PREDICATES_INIT
55 #define GET_GLOBALISEL_TEMPORARIES_INIT
56 #include "AMDGPUGenGlobalISel.inc"
57 #undef GET_GLOBALISEL_TEMPORARIES_INIT
58 ,AMDGPUASI(STI.getAMDGPUAS())
62 const char *AMDGPUInstructionSelector::getName() { return DEBUG_TYPE; }
64 bool AMDGPUInstructionSelector::selectCOPY(MachineInstr &I) const {
65 MachineBasicBlock *BB = I.getParent();
66 MachineFunction *MF = BB->getParent();
67 MachineRegisterInfo &MRI = MF->getRegInfo();
68 I.setDesc(TII.get(TargetOpcode::COPY));
69 for (const MachineOperand &MO : I.operands()) {
70 if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()))
73 const TargetRegisterClass *RC =
74 TRI.getConstrainedRegClassForOperand(MO, MRI);
77 RBI.constrainGenericRegister(MO.getReg(), *RC, MRI);
83 AMDGPUInstructionSelector::getSubOperand64(MachineOperand &MO,
84 unsigned SubIdx) const {
86 MachineInstr *MI = MO.getParent();
87 MachineBasicBlock *BB = MO.getParent()->getParent();
88 MachineFunction *MF = BB->getParent();
89 MachineRegisterInfo &MRI = MF->getRegInfo();
90 unsigned DstReg = MRI.createVirtualRegister(&AMDGPU::SGPR_32RegClass);
93 unsigned ComposedSubIdx = TRI.composeSubRegIndices(MO.getSubReg(), SubIdx);
94 unsigned Reg = MO.getReg();
95 BuildMI(*BB, MI, MI->getDebugLoc(), TII.get(AMDGPU::COPY), DstReg)
96 .addReg(Reg, 0, ComposedSubIdx);
98 return MachineOperand::CreateReg(DstReg, MO.isDef(), MO.isImplicit(),
99 MO.isKill(), MO.isDead(), MO.isUndef(),
100 MO.isEarlyClobber(), 0, MO.isDebug(),
101 MO.isInternalRead());
106 APInt Imm(64, MO.getImm());
110 llvm_unreachable("do not know to split immediate with this sub index.");
112 return MachineOperand::CreateImm(Imm.getLoBits(32).getSExtValue());
114 return MachineOperand::CreateImm(Imm.getHiBits(32).getSExtValue());
118 static int64_t getConstant(const MachineInstr *MI) {
119 return MI->getOperand(1).getCImm()->getSExtValue();
122 bool AMDGPUInstructionSelector::selectG_ADD(MachineInstr &I) const {
123 MachineBasicBlock *BB = I.getParent();
124 MachineFunction *MF = BB->getParent();
125 MachineRegisterInfo &MRI = MF->getRegInfo();
126 unsigned Size = RBI.getSizeInBits(I.getOperand(0).getReg(), MRI, TRI);
127 unsigned DstLo = MRI.createVirtualRegister(&AMDGPU::SReg_32RegClass);
128 unsigned DstHi = MRI.createVirtualRegister(&AMDGPU::SReg_32RegClass);
133 DebugLoc DL = I.getDebugLoc();
135 MachineOperand Lo1(getSubOperand64(I.getOperand(1), AMDGPU::sub0));
136 MachineOperand Lo2(getSubOperand64(I.getOperand(2), AMDGPU::sub0));
138 BuildMI(*BB, &I, DL, TII.get(AMDGPU::S_ADD_U32), DstLo)
142 MachineOperand Hi1(getSubOperand64(I.getOperand(1), AMDGPU::sub1));
143 MachineOperand Hi2(getSubOperand64(I.getOperand(2), AMDGPU::sub1));
145 BuildMI(*BB, &I, DL, TII.get(AMDGPU::S_ADDC_U32), DstHi)
149 BuildMI(*BB, &I, DL, TII.get(AMDGPU::REG_SEQUENCE), I.getOperand(0).getReg())
151 .addImm(AMDGPU::sub0)
153 .addImm(AMDGPU::sub1);
155 for (MachineOperand &MO : I.explicit_operands()) {
156 if (!MO.isReg() || TargetRegisterInfo::isPhysicalRegister(MO.getReg()))
158 RBI.constrainGenericRegister(MO.getReg(), AMDGPU::SReg_64RegClass, MRI);
165 bool AMDGPUInstructionSelector::selectG_GEP(MachineInstr &I) const {
166 return selectG_ADD(I);
169 bool AMDGPUInstructionSelector::selectG_IMPLICIT_DEF(MachineInstr &I) const {
170 MachineBasicBlock *BB = I.getParent();
171 MachineFunction *MF = BB->getParent();
172 MachineRegisterInfo &MRI = MF->getRegInfo();
173 const MachineOperand &MO = I.getOperand(0);
174 const TargetRegisterClass *RC =
175 TRI.getConstrainedRegClassForOperand(MO, MRI);
177 RBI.constrainGenericRegister(MO.getReg(), *RC, MRI);
178 I.setDesc(TII.get(TargetOpcode::IMPLICIT_DEF));
182 bool AMDGPUInstructionSelector::selectG_INTRINSIC(MachineInstr &I,
183 CodeGenCoverage &CoverageInfo) const {
184 unsigned IntrinsicID = I.getOperand(1).getIntrinsicID();
186 switch (IntrinsicID) {
189 case Intrinsic::maxnum:
190 case Intrinsic::minnum:
191 case Intrinsic::amdgcn_cvt_pkrtz:
192 return selectImpl(I, CoverageInfo);
194 case Intrinsic::amdgcn_kernarg_segment_ptr: {
195 MachineFunction *MF = I.getParent()->getParent();
196 MachineRegisterInfo &MRI = MF->getRegInfo();
197 const SIMachineFunctionInfo *MFI = MF->getInfo<SIMachineFunctionInfo>();
198 const ArgDescriptor *InputPtrReg;
199 const TargetRegisterClass *RC;
200 const DebugLoc &DL = I.getDebugLoc();
202 std::tie(InputPtrReg, RC)
203 = MFI->getPreloadedValue(AMDGPUFunctionArgInfo::KERNARG_SEGMENT_PTR);
205 report_fatal_error("missing kernarg segment ptr");
207 BuildMI(*I.getParent(), &I, DL, TII.get(AMDGPU::COPY))
208 .add(I.getOperand(0))
209 .addReg(MRI.getLiveInVirtReg(InputPtrReg->getRegister()));
217 static MachineInstr *
218 buildEXP(const TargetInstrInfo &TII, MachineInstr *Insert, unsigned Tgt,
219 unsigned Reg0, unsigned Reg1, unsigned Reg2, unsigned Reg3,
220 unsigned VM, bool Compr, unsigned Enabled, bool Done) {
221 const DebugLoc &DL = Insert->getDebugLoc();
222 MachineBasicBlock &BB = *Insert->getParent();
223 unsigned Opcode = Done ? AMDGPU::EXP_DONE : AMDGPU::EXP;
224 return BuildMI(BB, Insert, DL, TII.get(Opcode))
235 bool AMDGPUInstructionSelector::selectG_INTRINSIC_W_SIDE_EFFECTS(
237 CodeGenCoverage &CoverageInfo) const {
238 MachineBasicBlock *BB = I.getParent();
239 MachineFunction *MF = BB->getParent();
240 MachineRegisterInfo &MRI = MF->getRegInfo();
242 unsigned IntrinsicID = I.getOperand(0).getIntrinsicID();
243 switch (IntrinsicID) {
244 case Intrinsic::amdgcn_exp: {
245 int64_t Tgt = getConstant(MRI.getVRegDef(I.getOperand(1).getReg()));
246 int64_t Enabled = getConstant(MRI.getVRegDef(I.getOperand(2).getReg()));
247 int64_t Done = getConstant(MRI.getVRegDef(I.getOperand(7).getReg()));
248 int64_t VM = getConstant(MRI.getVRegDef(I.getOperand(8).getReg()));
250 MachineInstr *Exp = buildEXP(TII, &I, Tgt, I.getOperand(3).getReg(),
251 I.getOperand(4).getReg(),
252 I.getOperand(5).getReg(),
253 I.getOperand(6).getReg(),
254 VM, false, Enabled, Done);
257 return constrainSelectedInstRegOperands(*Exp, TII, TRI, RBI);
259 case Intrinsic::amdgcn_exp_compr: {
260 const DebugLoc &DL = I.getDebugLoc();
261 int64_t Tgt = getConstant(MRI.getVRegDef(I.getOperand(1).getReg()));
262 int64_t Enabled = getConstant(MRI.getVRegDef(I.getOperand(2).getReg()));
263 unsigned Reg0 = I.getOperand(3).getReg();
264 unsigned Reg1 = I.getOperand(4).getReg();
265 unsigned Undef = MRI.createVirtualRegister(&AMDGPU::VGPR_32RegClass);
266 int64_t Done = getConstant(MRI.getVRegDef(I.getOperand(5).getReg()));
267 int64_t VM = getConstant(MRI.getVRegDef(I.getOperand(6).getReg()));
269 BuildMI(*BB, &I, DL, TII.get(AMDGPU::IMPLICIT_DEF), Undef);
270 MachineInstr *Exp = buildEXP(TII, &I, Tgt, Reg0, Reg1, Undef, Undef, VM,
271 true, Enabled, Done);
274 return constrainSelectedInstRegOperands(*Exp, TII, TRI, RBI);
280 bool AMDGPUInstructionSelector::selectG_STORE(MachineInstr &I) const {
281 MachineBasicBlock *BB = I.getParent();
282 MachineFunction *MF = BB->getParent();
283 MachineRegisterInfo &MRI = MF->getRegInfo();
284 DebugLoc DL = I.getDebugLoc();
285 unsigned StoreSize = RBI.getSizeInBits(I.getOperand(0).getReg(), MRI, TRI);
288 // FIXME: Select store instruction based on address space
293 Opcode = AMDGPU::FLAT_STORE_DWORD;
296 Opcode = AMDGPU::FLAT_STORE_DWORDX2;
299 Opcode = AMDGPU::FLAT_STORE_DWORDX3;
302 Opcode = AMDGPU::FLAT_STORE_DWORDX4;
306 MachineInstr *Flat = BuildMI(*BB, &I, DL, TII.get(Opcode))
307 .add(I.getOperand(1))
308 .add(I.getOperand(0))
314 // Now that we selected an opcode, we need to constrain the register
315 // operands to use appropriate classes.
316 bool Ret = constrainSelectedInstRegOperands(*Flat, TII, TRI, RBI);
322 bool AMDGPUInstructionSelector::selectG_CONSTANT(MachineInstr &I) const {
323 MachineBasicBlock *BB = I.getParent();
324 MachineFunction *MF = BB->getParent();
325 MachineRegisterInfo &MRI = MF->getRegInfo();
326 MachineOperand &ImmOp = I.getOperand(1);
328 // The AMDGPU backend only supports Imm operands and not CImm or FPImm.
329 if (ImmOp.isFPImm()) {
330 const APInt &Imm = ImmOp.getFPImm()->getValueAPF().bitcastToAPInt();
331 ImmOp.ChangeToImmediate(Imm.getZExtValue());
332 } else if (ImmOp.isCImm()) {
333 ImmOp.ChangeToImmediate(ImmOp.getCImm()->getZExtValue());
336 unsigned DstReg = I.getOperand(0).getReg();
339 const RegisterBank *RB = MRI.getRegBankOrNull(I.getOperand(0).getReg());
341 IsSgpr = RB->getID() == AMDGPU::SGPRRegBankID;
342 Size = MRI.getType(DstReg).getSizeInBits();
344 const TargetRegisterClass *RC = TRI.getRegClassForReg(MRI, DstReg);
345 IsSgpr = TRI.isSGPRClass(RC);
346 Size = TRI.getRegSizeInBits(*RC);
349 if (Size != 32 && Size != 64)
352 unsigned Opcode = IsSgpr ? AMDGPU::S_MOV_B32 : AMDGPU::V_MOV_B32_e32;
354 I.setDesc(TII.get(Opcode));
355 I.addImplicitDefUseOperands(*MF);
356 return constrainSelectedInstRegOperands(I, TII, TRI, RBI);
359 DebugLoc DL = I.getDebugLoc();
360 const TargetRegisterClass *RC = IsSgpr ? &AMDGPU::SReg_32_XM0RegClass :
361 &AMDGPU::VGPR_32RegClass;
362 unsigned LoReg = MRI.createVirtualRegister(RC);
363 unsigned HiReg = MRI.createVirtualRegister(RC);
364 const APInt &Imm = APInt(Size, I.getOperand(1).getImm());
366 BuildMI(*BB, &I, DL, TII.get(Opcode), LoReg)
367 .addImm(Imm.trunc(32).getZExtValue());
369 BuildMI(*BB, &I, DL, TII.get(Opcode), HiReg)
370 .addImm(Imm.ashr(32).getZExtValue());
372 const MachineInstr *RS =
373 BuildMI(*BB, &I, DL, TII.get(AMDGPU::REG_SEQUENCE), DstReg)
375 .addImm(AMDGPU::sub0)
377 .addImm(AMDGPU::sub1);
379 // We can't call constrainSelectedInstRegOperands here, because it doesn't
380 // work for target independent opcodes
382 const TargetRegisterClass *DstRC =
383 TRI.getConstrainedRegClassForOperand(RS->getOperand(0), MRI);
386 return RBI.constrainGenericRegister(DstReg, *DstRC, MRI);
389 static bool isConstant(const MachineInstr &MI) {
390 return MI.getOpcode() == TargetOpcode::G_CONSTANT;
393 void AMDGPUInstructionSelector::getAddrModeInfo(const MachineInstr &Load,
394 const MachineRegisterInfo &MRI, SmallVectorImpl<GEPInfo> &AddrInfo) const {
396 const MachineInstr *PtrMI = MRI.getUniqueVRegDef(Load.getOperand(1).getReg());
400 if (PtrMI->getOpcode() != TargetOpcode::G_GEP)
403 GEPInfo GEPInfo(*PtrMI);
405 for (unsigned i = 1, e = 3; i < e; ++i) {
406 const MachineOperand &GEPOp = PtrMI->getOperand(i);
407 const MachineInstr *OpDef = MRI.getUniqueVRegDef(GEPOp.getReg());
409 if (isConstant(*OpDef)) {
410 // FIXME: Is it possible to have multiple Imm parts? Maybe if we
411 // are lacking other optimizations.
412 assert(GEPInfo.Imm == 0);
413 GEPInfo.Imm = OpDef->getOperand(1).getCImm()->getSExtValue();
416 const RegisterBank *OpBank = RBI.getRegBank(GEPOp.getReg(), MRI, TRI);
417 if (OpBank->getID() == AMDGPU::SGPRRegBankID)
418 GEPInfo.SgprParts.push_back(GEPOp.getReg());
420 GEPInfo.VgprParts.push_back(GEPOp.getReg());
423 AddrInfo.push_back(GEPInfo);
424 getAddrModeInfo(*PtrMI, MRI, AddrInfo);
427 static bool isInstrUniform(const MachineInstr &MI) {
428 if (!MI.hasOneMemOperand())
431 const MachineMemOperand *MMO = *MI.memoperands_begin();
432 const Value *Ptr = MMO->getValue();
434 // UndefValue means this is a load of a kernel input. These are uniform.
435 // Sometimes LDS instructions have constant pointers.
436 // If Ptr is null, then that means this mem operand contains a
437 // PseudoSourceValue like GOT.
438 if (!Ptr || isa<UndefValue>(Ptr) || isa<Argument>(Ptr) ||
439 isa<Constant>(Ptr) || isa<GlobalValue>(Ptr))
442 if (MMO->getAddrSpace() == AMDGPUAS::CONSTANT_ADDRESS_32BIT)
445 const Instruction *I = dyn_cast<Instruction>(Ptr);
446 return I && I->getMetadata("amdgpu.uniform");
449 static unsigned getSmrdOpcode(unsigned BaseOpcode, unsigned LoadSize) {
454 switch (BaseOpcode) {
455 case AMDGPU::S_LOAD_DWORD_IMM:
458 return AMDGPU::S_LOAD_DWORDX2_IMM;
460 return AMDGPU::S_LOAD_DWORDX4_IMM;
462 return AMDGPU::S_LOAD_DWORDX8_IMM;
464 return AMDGPU::S_LOAD_DWORDX16_IMM;
467 case AMDGPU::S_LOAD_DWORD_IMM_ci:
470 return AMDGPU::S_LOAD_DWORDX2_IMM_ci;
472 return AMDGPU::S_LOAD_DWORDX4_IMM_ci;
474 return AMDGPU::S_LOAD_DWORDX8_IMM_ci;
476 return AMDGPU::S_LOAD_DWORDX16_IMM_ci;
479 case AMDGPU::S_LOAD_DWORD_SGPR:
482 return AMDGPU::S_LOAD_DWORDX2_SGPR;
484 return AMDGPU::S_LOAD_DWORDX4_SGPR;
486 return AMDGPU::S_LOAD_DWORDX8_SGPR;
488 return AMDGPU::S_LOAD_DWORDX16_SGPR;
492 llvm_unreachable("Invalid base smrd opcode or size");
495 bool AMDGPUInstructionSelector::hasVgprParts(ArrayRef<GEPInfo> AddrInfo) const {
496 for (const GEPInfo &GEPInfo : AddrInfo) {
497 if (!GEPInfo.VgprParts.empty())
503 bool AMDGPUInstructionSelector::selectSMRD(MachineInstr &I,
504 ArrayRef<GEPInfo> AddrInfo) const {
506 if (!I.hasOneMemOperand())
509 if ((*I.memoperands_begin())->getAddrSpace() != AMDGPUASI.CONSTANT_ADDRESS &&
510 (*I.memoperands_begin())->getAddrSpace() != AMDGPUASI.CONSTANT_ADDRESS_32BIT)
513 if (!isInstrUniform(I))
516 if (hasVgprParts(AddrInfo))
519 MachineBasicBlock *BB = I.getParent();
520 MachineFunction *MF = BB->getParent();
521 const GCNSubtarget &Subtarget = MF->getSubtarget<GCNSubtarget>();
522 MachineRegisterInfo &MRI = MF->getRegInfo();
523 unsigned DstReg = I.getOperand(0).getReg();
524 const DebugLoc &DL = I.getDebugLoc();
526 unsigned LoadSize = RBI.getSizeInBits(DstReg, MRI, TRI);
528 if (!AddrInfo.empty() && AddrInfo[0].SgprParts.size() == 1) {
530 const GEPInfo &GEPInfo = AddrInfo[0];
532 unsigned PtrReg = GEPInfo.SgprParts[0];
533 int64_t EncodedImm = AMDGPU::getSMRDEncodedOffset(Subtarget, GEPInfo.Imm);
534 if (AMDGPU::isLegalSMRDImmOffset(Subtarget, GEPInfo.Imm)) {
535 Opcode = getSmrdOpcode(AMDGPU::S_LOAD_DWORD_IMM, LoadSize);
537 MachineInstr *SMRD = BuildMI(*BB, &I, DL, TII.get(Opcode), DstReg)
541 return constrainSelectedInstRegOperands(*SMRD, TII, TRI, RBI);
544 if (Subtarget.getGeneration() == AMDGPUSubtarget::SEA_ISLANDS &&
545 isUInt<32>(EncodedImm)) {
546 Opcode = getSmrdOpcode(AMDGPU::S_LOAD_DWORD_IMM_ci, LoadSize);
547 MachineInstr *SMRD = BuildMI(*BB, &I, DL, TII.get(Opcode), DstReg)
551 return constrainSelectedInstRegOperands(*SMRD, TII, TRI, RBI);
554 if (isUInt<32>(GEPInfo.Imm)) {
555 Opcode = getSmrdOpcode(AMDGPU::S_LOAD_DWORD_SGPR, LoadSize);
556 unsigned OffsetReg = MRI.createVirtualRegister(&AMDGPU::SReg_32RegClass);
557 BuildMI(*BB, &I, DL, TII.get(AMDGPU::S_MOV_B32), OffsetReg)
558 .addImm(GEPInfo.Imm);
560 MachineInstr *SMRD = BuildMI(*BB, &I, DL, TII.get(Opcode), DstReg)
564 return constrainSelectedInstRegOperands(*SMRD, TII, TRI, RBI);
568 unsigned PtrReg = I.getOperand(1).getReg();
569 Opcode = getSmrdOpcode(AMDGPU::S_LOAD_DWORD_IMM, LoadSize);
570 MachineInstr *SMRD = BuildMI(*BB, &I, DL, TII.get(Opcode), DstReg)
574 return constrainSelectedInstRegOperands(*SMRD, TII, TRI, RBI);
578 bool AMDGPUInstructionSelector::selectG_LOAD(MachineInstr &I) const {
579 MachineBasicBlock *BB = I.getParent();
580 MachineFunction *MF = BB->getParent();
581 MachineRegisterInfo &MRI = MF->getRegInfo();
582 DebugLoc DL = I.getDebugLoc();
583 unsigned DstReg = I.getOperand(0).getReg();
584 unsigned PtrReg = I.getOperand(1).getReg();
585 unsigned LoadSize = RBI.getSizeInBits(DstReg, MRI, TRI);
588 SmallVector<GEPInfo, 4> AddrInfo;
590 getAddrModeInfo(I, MRI, AddrInfo);
592 if (selectSMRD(I, AddrInfo)) {
599 llvm_unreachable("Load size not supported\n");
601 Opcode = AMDGPU::FLAT_LOAD_DWORD;
604 Opcode = AMDGPU::FLAT_LOAD_DWORDX2;
608 MachineInstr *Flat = BuildMI(*BB, &I, DL, TII.get(Opcode))
609 .add(I.getOperand(0))
615 bool Ret = constrainSelectedInstRegOperands(*Flat, TII, TRI, RBI);
620 bool AMDGPUInstructionSelector::select(MachineInstr &I,
621 CodeGenCoverage &CoverageInfo) const {
623 if (!isPreISelGenericOpcode(I.getOpcode())) {
625 return selectCOPY(I);
629 switch (I.getOpcode()) {
631 return selectImpl(I, CoverageInfo);
632 case TargetOpcode::G_ADD:
633 return selectG_ADD(I);
634 case TargetOpcode::G_BITCAST:
635 return selectCOPY(I);
636 case TargetOpcode::G_CONSTANT:
637 case TargetOpcode::G_FCONSTANT:
638 return selectG_CONSTANT(I);
639 case TargetOpcode::G_GEP:
640 return selectG_GEP(I);
641 case TargetOpcode::G_IMPLICIT_DEF:
642 return selectG_IMPLICIT_DEF(I);
643 case TargetOpcode::G_INTRINSIC:
644 return selectG_INTRINSIC(I, CoverageInfo);
645 case TargetOpcode::G_INTRINSIC_W_SIDE_EFFECTS:
646 return selectG_INTRINSIC_W_SIDE_EFFECTS(I, CoverageInfo);
647 case TargetOpcode::G_LOAD:
648 return selectG_LOAD(I);
649 case TargetOpcode::G_STORE:
650 return selectG_STORE(I);
655 InstructionSelector::ComplexRendererFns
656 AMDGPUInstructionSelector::selectVCSRC(MachineOperand &Root) const {
658 [=](MachineInstrBuilder &MIB) { MIB.add(Root); }
664 /// This will select either an SGPR or VGPR operand and will save us from
665 /// having to write an extra tablegen pattern.
666 InstructionSelector::ComplexRendererFns
667 AMDGPUInstructionSelector::selectVSRC0(MachineOperand &Root) const {
669 [=](MachineInstrBuilder &MIB) { MIB.add(Root); }
673 InstructionSelector::ComplexRendererFns
674 AMDGPUInstructionSelector::selectVOP3Mods0(MachineOperand &Root) const {
676 [=](MachineInstrBuilder &MIB) { MIB.add(Root); },
677 [=](MachineInstrBuilder &MIB) { MIB.addImm(0); }, // src0_mods
678 [=](MachineInstrBuilder &MIB) { MIB.addImm(0); }, // clamp
679 [=](MachineInstrBuilder &MIB) { MIB.addImm(0); } // omod
682 InstructionSelector::ComplexRendererFns
683 AMDGPUInstructionSelector::selectVOP3OMods(MachineOperand &Root) const {
685 [=](MachineInstrBuilder &MIB) { MIB.add(Root); },
686 [=](MachineInstrBuilder &MIB) { MIB.addImm(0); }, // clamp
687 [=](MachineInstrBuilder &MIB) { MIB.addImm(0); } // omod
691 InstructionSelector::ComplexRendererFns
692 AMDGPUInstructionSelector::selectVOP3Mods(MachineOperand &Root) const {
694 [=](MachineInstrBuilder &MIB) { MIB.add(Root); },
695 [=](MachineInstrBuilder &MIB) { MIB.addImm(0); } // src_mods