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Use EVT::changeVectorElementTypeToInteger() to convert index type to integer 

llvm-svn: 323207
This commit is contained in:
Simon Pilgrim 2018-01-23 15:30:07 +00:00
parent e2905c8a0c
commit 9b4a097f94
1 changed files with 4 additions and 4 deletions
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8
llvm/lib/Target/X86/X86ISelLowering.cpp
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@ -7920,16 +7920,16 @@ LowerBUILD_VECTORAsVariablePermute(SDValue V, SelectionDAG &DAG,
if (!PermIdx || PermIdx->getZExtValue() != Idx)
return SDValue();
}
MVT IndicesVT = VT;
if (VT.isFloatingPoint())
IndicesVT = MVT::getVectorVT(MVT::getIntegerVT(VT.getScalarSizeInBits()),
VT.getVectorNumElements());
MVT IndicesVT = EVT(VT).changeVectorElementTypeToInteger().getSimpleVT();
IndicesVec = DAG.getZExtOrTrunc(IndicesVec, SDLoc(IndicesVec), IndicesVT);
if (SrcVec.getValueSizeInBits() < IndicesVT.getSizeInBits()) {
SrcVec =
DAG.getNode(ISD::INSERT_SUBVECTOR, SDLoc(SrcVec), VT, DAG.getUNDEF(VT),
SrcVec, DAG.getIntPtrConstant(0, SDLoc(SrcVec)));
}
if (VT == MVT::v16i8)
return DAG.getNode(X86ISD::PSHUFB, SDLoc(V), VT, SrcVec, IndicesVec);
return DAG.getNode(X86ISD::VPERMV, SDLoc(V), VT, IndicesVec, SrcVec);