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Differential D143515 Diff 495581 llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.cpp

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llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.cpp

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bool AMDGPUAsmPrinter::lowerOperand(const MachineOperand &MO, bool AMDGPUAsmPrinter::lowerOperand(const MachineOperand &MO,
MCOperand &MCOp) const { MCOperand &MCOp) const {
const GCNSubtarget &STI = MF->getSubtarget<GCNSubtarget>(); const GCNSubtarget &STI = MF->getSubtarget<GCNSubtarget>();
AMDGPUMCInstLower MCInstLowering(OutContext, STI, *this); AMDGPUMCInstLower MCInstLowering(OutContext, STI, *this);
return MCInstLowering.lowerOperand(MO, MCOp); return MCInstLowering.lowerOperand(MO, MCOp);
} }
Constant *AMDGPUAsmPrinter::constantFoldForPrint(const Constant *CV) {
// TargetMachine does not support llvm-style cast. Use C++-style cast.
// This is safe since TM is always of type AMDGPUTargetMachine or its
// derived class.
auto &AT = static_cast<const AMDGPUTargetMachine &>(TM);
auto *CE = dyn_cast<ConstantExpr>(CV);
if (CE && CE->getOpcode() == Instruction::AddrSpaceCast) {
auto *Op = CE->getOperand(0);
auto SrcAddr = Op->getType()->getPointerAddressSpace();
auto DstAddr = CE->getType()->getPointerAddressSpace();
if (Op->isNullValue() && AT.getNullPointerValue(SrcAddr) == 0 &&
arsenmUnsubmitted
Not Done
ReplyInline Actions

Don't hardcode to generic, check the null pointer representation

arsenm: Don't hardcode to generic, check the null pointer representation
AT.getPointerSizeInBits(DstAddr) > 64)
return ConstantPointerNull::get(cast<PointerType>(CE->getType()));
}
return AsmPrinter::constantFoldForPrint(CV);
}
const MCExpr *AMDGPUAsmPrinter::lowerConstant(const Constant *CV) { const MCExpr *AMDGPUAsmPrinter::lowerConstant(const Constant *CV) {
// Intercept LDS variables with known addresses // Intercept LDS variables with known addresses
if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(CV)) { if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(CV)) {
if (AMDGPUMachineFunction::isKnownAddressLDSGlobal(*GV)) { if (AMDGPUMachineFunction::isKnownAddressLDSGlobal(*GV)) {
unsigned offset = unsigned offset =
AMDGPUMachineFunction::calculateKnownAddressOfLDSGlobal(*GV); AMDGPUMachineFunction::calculateKnownAddressOfLDSGlobal(*GV);
Constant *C = ConstantInt::get(CV->getContext(), APInt(32, offset)); Constant *C = ConstantInt::get(CV->getContext(), APInt(32, offset));
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