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[AMDGPU] Remove selectStoreIntrinsic (NFC) 

The last use was removed on Jan 13, 2020 in commit
533d650e94.
This commit is contained in:
Kazu Hirata 2021-11-14 19:40:44 -08:00
parent a32c2c3808
commit a84a401f7e
2 changed files with 0 additions and 94 deletions
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91
llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
View File

@ -1762,97 +1762,6 @@ AMDGPURegisterBankInfo::splitBufferOffsets(MachineIRBuilder &B,
return {BaseReg, C1}; return {BaseReg, C1};
} }
static bool isZero(Register Reg, MachineRegisterInfo &MRI) {
int64_t C;
return mi_match(Reg, MRI, m_ICst(C)) && C == 0;
}
static unsigned extractCPol(unsigned CachePolicy) {
return CachePolicy & AMDGPU::CPol::ALL;
}
static unsigned extractSWZ(unsigned CachePolicy) {
return (CachePolicy >> 3) & 1;
}
MachineInstr *
AMDGPURegisterBankInfo::selectStoreIntrinsic(MachineIRBuilder &B,
MachineInstr &MI) const {
MachineRegisterInfo &MRI = *B.getMRI();
executeInWaterfallLoop(B, MI, MRI, {2, 4});
// FIXME: DAG lowering brokenly changes opcode based on FP vs. integer.
Register VData = MI.getOperand(1).getReg();
LLT Ty = MRI.getType(VData);
int EltSize = Ty.getScalarSizeInBits();
int Size = Ty.getSizeInBits();
// FIXME: Broken integer truncstore.
if (EltSize != 32)
report_fatal_error("unhandled intrinsic store");
// FIXME: Verifier should enforce 1 MMO for these intrinsics.
const int MemSize = (*MI.memoperands_begin())->getSize();
Register RSrc = MI.getOperand(2).getReg();
Register VOffset = MI.getOperand(3).getReg();
Register SOffset = MI.getOperand(4).getReg();
unsigned CachePolicy = MI.getOperand(5).getImm();
unsigned ImmOffset;
std::tie(VOffset, ImmOffset) = splitBufferOffsets(B, VOffset);
const bool Offen = !isZero(VOffset, MRI);
unsigned Opc = AMDGPU::BUFFER_STORE_DWORD_OFFEN_exact;
switch (8 * MemSize) {
case 8:
Opc = Offen ? AMDGPU::BUFFER_STORE_BYTE_OFFEN_exact :
AMDGPU::BUFFER_STORE_BYTE_OFFSET_exact;
break;
case 16:
Opc = Offen ? AMDGPU::BUFFER_STORE_SHORT_OFFEN_exact :
AMDGPU::BUFFER_STORE_SHORT_OFFSET_exact;
break;
default:
Opc = Offen ? AMDGPU::BUFFER_STORE_DWORD_OFFEN_exact :
AMDGPU::BUFFER_STORE_DWORD_OFFSET_exact;
if (Size > 32)
Opc = AMDGPU::getMUBUFOpcode(Opc, Size / 32);
break;
}
// Set the insertion point back to the instruction in case it was moved into a
// loop.
B.setInstr(MI);
MachineInstrBuilder MIB = B.buildInstr(Opc)
.addUse(VData);
if (Offen)
MIB.addUse(VOffset);
MIB.addUse(RSrc)
.addUse(SOffset)
.addImm(ImmOffset)
.addImm(extractCPol(CachePolicy))
.addImm(0) // tfe: FIXME: Remove from inst
.addImm(extractSWZ(CachePolicy))
.cloneMemRefs(MI);
// FIXME: We need a way to report failure from applyMappingImpl.
// Insert constrain copies before inserting the loop.
if (!constrainSelectedInstRegOperands(*MIB, *TII, *TRI, *this))
report_fatal_error("failed to constrain selected store intrinsic");
return MIB;
}
bool AMDGPURegisterBankInfo::buildVCopy(MachineIRBuilder &B, Register DstReg, bool AMDGPURegisterBankInfo::buildVCopy(MachineIRBuilder &B, Register DstReg,
Register SrcReg) const { Register SrcReg) const {
MachineRegisterInfo &MRI = *B.getMRI(); MachineRegisterInfo &MRI = *B.getMRI();

3
llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.h
View File

@ -89,9 +89,6 @@ public:
std::pair<Register, unsigned> std::pair<Register, unsigned>
splitBufferOffsets(MachineIRBuilder &B, Register Offset) const; splitBufferOffsets(MachineIRBuilder &B, Register Offset) const;
MachineInstr *selectStoreIntrinsic(MachineIRBuilder &B,
MachineInstr &MI) const;
/// See RegisterBankInfo::applyMapping. /// See RegisterBankInfo::applyMapping.
void applyMappingImpl(const OperandsMapper &OpdMapper) const override; void applyMappingImpl(const OperandsMapper &OpdMapper) const override;