diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/FastISel.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp index 64843f8b55..a956f0190b 100644 --- a/lib/CodeGen/SelectionDAG/FastISel.cpp +++ b/lib/CodeGen/SelectionDAG/FastISel.cpp @@ -393,8 +393,12 @@ FastISel::SelectInstructions(BasicBlock::iterator Begin, 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; |