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Remove an incorrect optimization that is performed correctly by

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the target independent legalizer.

llvm-svn: 45631
This commit is contained in:
Nate Begeman 2008-01-05 20:51:30 +00:00
parent a6e9de35ae
commit ff49dc59ff
1 changed files with 1 additions and 11 deletions
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12
lib/Target/X86/X86ISelLowering.cpp
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@ -3608,17 +3608,7 @@ X86TargetLowering::LowerINSERT_VECTOR_ELT(SDOperand Op, SelectionDAG &DAG) {
N2 = DAG.getConstant(cast<ConstantSDNode>(N2)->getValue(),getPointerTy());
return DAG.getNode(X86ISD::PINSRW, VT, N0, N1, N2);
}
N1 = DAG.getNode(ISD::SCALAR_TO_VECTOR, VT, N1);
unsigned Idx = cast<ConstantSDNode>(N2)->getValue();
MVT::ValueType MaskVT = MVT::getIntVectorWithNumElements(4);
MVT::ValueType MaskEVT = MVT::getVectorElementType(MaskVT);
SmallVector<SDOperand, 4> MaskVec;
for (unsigned i = 0; i < 4; ++i)
MaskVec.push_back(DAG.getConstant((i == Idx) ? i+4 : i, MaskEVT));
return DAG.getNode(ISD::VECTOR_SHUFFLE, VT, N0, N1,
DAG.getNode(ISD::BUILD_VECTOR, MaskVT,
&MaskVec[0], MaskVec.size()));
return SDOperand();
}
SDOperand