MVT SrcVT = TLI.getValueType(I->getOperand(0)->getType());
MVT DstVT = TLI.getValueType(I->getType());
if (SrcVT.getSimpleVT() == DstVT.getSimpleVT()) {
- ValueMap[I] = ValueMap[I->getOperand(0)];
- break;
+ if (ValueMap[I->getOperand(0)]) {
+ ValueMap[I] = ValueMap[I->getOperand(0)];
+ break;
+ } else
+ // Unhandled operand
+ return I;
} else if (DstVT.bitsGT(SrcVT)) {
if (!isa<ConstantInt>(I->getOperand(0))) {
if (!SelectCast(I, ISD::ZERO_EXTEND, ValueMap)) return I;