diff options
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index 04370c095c..9d8b7dff10 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -4271,6 +4271,10 @@ SDValue ARMTargetLowering::ReconstructShuffle(SDValue Op, // Record this extraction against the appropriate vector if possible... SDValue SourceVec = V.getOperand(0); + // If the element number isn't a constant, we can't effectively + // analyze what's going on. + if (!isa<ConstantSDNode>(V.getOperand(1))) + return SDValue(); unsigned EltNo = cast<ConstantSDNode>(V.getOperand(1))->getZExtValue(); bool FoundSource = false; for (unsigned j = 0; j < SourceVecs.size(); ++j) { |