diff options
| -rw-r--r-- | lib/Target/PowerPC/PPCISelLowering.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp index 8fa5f84..826ff4e 100644 --- a/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/lib/Target/PowerPC/PPCISelLowering.cpp @@ -1116,7 +1116,11 @@ static SDOperand LowerVECTOR_SHUFFLE(SDOperand Op, SelectionDAG &DAG) { std::vector<SDOperand> ResultMask; for (unsigned i = 0, e = PermMask.getNumOperands(); i != e; ++i) { - unsigned SrcElt =cast<ConstantSDNode>(PermMask.getOperand(i))->getValue(); + unsigned SrcElt; + if (PermMask.getOperand(i).getOpcode() == ISD::UNDEF) + SrcElt = 0; + else + SrcElt = cast<ConstantSDNode>(PermMask.getOperand(i))->getValue(); for (unsigned j = 0; j != BytesPerElement; ++j) ResultMask.push_back(DAG.getConstant(SrcElt*BytesPerElement+j, |