2192   if (CC != ISD::SETEQ || !isNullConstant(SetCC.getOperand(1)) ||  in foldAddSubBoolOfMaskedVal()
2286   if (isNullConstant(N1))  in visitADDLike()
2576   if (isNullConstant(N1))  in visitADDSAT()
2711   if (N1.getOpcode() == ISD::ADDCARRY && isNullConstant(N1.getOperand(1)) &&  in visitADDLikeCommutative()
2744   if (isNullConstant(N1))  in visitADDC()
2852   if (N1.getOpcode() == ISD::ADDCARRY && isNullConstant(N1.getOperand(1))) {  in visitUADDOLike()
2901   if (isNullConstant(CarryIn)) {  in visitADDCARRY()
2908   if (isNullConstant(N0) && isNullConstant(N1)) {  in visitADDCARRY()
2940   if (isNullConstant(CarryIn)) {  in visitSADDO_CARRY()
2986       isNullConstant(Carry0.getOperand(1))) {  in combineADDCARRYDiamond()
3145       isNullConstant(N1) && !N->hasAnyUseOfValue(1))  in visitADDCARRYLike()
3328           isNullConstant(N1S.getOperand(0))) {  in visitSUB()
3632   if (isNullConstant(N1))  in visitSUBSAT()
3655   if (isNullConstant(N1))  in visitSUBC()
3723   if (isNullConstant(CarryIn)) {  in visitSUBCARRY()
3738   if (isNullConstant(CarryIn)) {  in visitSSUBO_CARRY()
3765   if (isNullConstant(N1))  in visitMULFIX()
4479   if (isNullConstant(N1))  in visitMULHS()
4531   if (isNullConstant(N1))  in visitMULHU()
4661   if (isNullConstant(N->getOperand(1))) {  in visitUMUL_LOHI()
5049       ((isNullConstant(LR) && isAllOnesConstant(RR)) ||  in foldLogicOfSetCCs()
5050        (isAllOnesConstant(LR) && isNullConstant(RR)))) {  in foldLogicOfSetCCs()
6479   if (isNullConstant(N1))  in visitOR()
7787   if (isNullConstant(N1))  in visitXOR()
7873       isNullConstant(N0.getOperand(0))) {  in visitXOR()
9710   if (!isNullConstant(BasePtr) || Index.getOpcode() != ISD::ADD)  in refineUniformBase()
10308   if (isNullConstant(Carry))  in visitSETCCCARRY()
15312   if (isNullConstant(Offset))  in CombineToPreIndexedLoadStore()
15507   if (isNullConstant(Offset))  in shouldCombineToPostInc()
19451     if (isNullConstant(Op) || isNullFPConstant(Op)) {  in reduceBuildVecToShuffle()
21733       N1.getOperand(0).isUndef() && isNullConstant(N1.getOperand(2)))  in visitINSERT_SUBVECTOR()
22363   if (!isNullConstant(N3) || !XType.bitsGE(AType))  in foldSelectCCToShiftAnd()
22372     if (!(isAllOnesConstant(N1) || (isNullConstant(N1) && N0 == N2)))  in foldSelectCCToShiftAnd()
22377     if (!(isNullConstant(N1) || (isOneConstant(N1) && N0 == N2)))  in foldSelectCCToShiftAnd()
22605       N0->getValueType(0) == VT && isNullConstant(N1) && isNullConstant(N2)) {  in SimplifySelectCC()
22631   bool Fold = N2C && isNullConstant(N3) && N2C->getAPIntValue().isPowerOf2();  in SimplifySelectCC()
22632   bool Swap = N3C && isNullConstant(N2) && N3C->getAPIntValue().isPowerOf2();  in SimplifySelectCC()