diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 94b24017ece..74a8fb189ac 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -27269,7 +27269,8 @@ static bool combineX86ShuffleChain(ArrayRef<SDValue> Inputs, SDValue Root, // here, we're not going to remove the operands we find. bool UnaryShuffle = (Inputs.size() == 1); SDValue V1 = peekThroughBitcasts(Inputs[0]); - SDValue V2 = (UnaryShuffle ? V1 : peekThroughBitcasts(Inputs[1])); + SDValue V2 = (UnaryShuffle ? DAG.getUNDEF(V1.getValueType()) + : peekThroughBitcasts(Inputs[1])); MVT VT1 = V1.getSimpleValueType(); MVT VT2 = V2.getSimpleValueType(); |
