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[X86] Use isNullConstant instead of getConstantOperandVal == 0. NFC

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llvm-svn: 369410
This commit is contained in:
Craig Topper 2019-08-20 16:55:12 +00:00
parent 929428465f
commit a5daa6c00e
1 changed files with 2 additions and 2 deletions
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4
lib/Target/X86/X86ISelLowering.cpp
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@ -44293,10 +44293,10 @@ static SDValue combineInsertSubvector(SDNode *N, SelectionDAG &DAG,
// least as large as the original insertion. Just insert the original
// subvector into a zero vector.
if (SubVec.getOpcode() == ISD::EXTRACT_SUBVECTOR && IdxVal == 0 &&
SubVec.getConstantOperandAPInt(1) == 0 &&
isNullConstant(SubVec.getOperand(1)) &&
SubVec.getOperand(0).getOpcode() == ISD::INSERT_SUBVECTOR) {
SDValue Ins = SubVec.getOperand(0);
if (Ins.getConstantOperandAPInt(2) == 0 &&
if (isNullConstant(Ins.getOperand(2)) &&
ISD::isBuildVectorAllZeros(Ins.getOperand(0).getNode()) &&
Ins.getOperand(1).getValueSizeInBits() <= SubVecVT.getSizeInBits())
return DAG.getNode(ISD::INSERT_SUBVECTOR, dl, OpVT,