2346   if (CC != ISD::SETEQ || !isNullConstant(SetCC.getOperand(1)) ||  in foldAddSubBoolOfMaskedVal()
2449   if (isNullConstant(N1))  in visitADDLike()
2734   if (isNullConstant(N1))  in visitADDSAT()
2869   if (N1.getOpcode() == ISD::ADDCARRY && isNullConstant(N1.getOperand(1)) &&  in visitADDLikeCommutative()
2902   if (isNullConstant(N1))  in visitADDC()
3010   if (N1.getOpcode() == ISD::ADDCARRY && isNullConstant(N1.getOperand(1))) {  in visitUADDOLike()
3059   if (isNullConstant(CarryIn)) {  in visitADDCARRY()
3066   if (isNullConstant(N0) && isNullConstant(N1)) {  in visitADDCARRY()
3098   if (isNullConstant(CarryIn)) {  in visitSADDO_CARRY()
3144       isNullConstant(Carry0.getOperand(1))) {  in combineADDCARRYDiamond()
3307       isNullConstant(N1) && !N->hasAnyUseOfValue(1))  in visitADDCARRYLike()
3495           isNullConstant(N1S.getOperand(0))) {  in visitSUB()
3807   if (isNullConstant(N1))  in visitSUBSAT()
3830   if (isNullConstant(N1))  in visitSUBC()
3898   if (isNullConstant(CarryIn)) {  in visitSUBCARRY()
3913   if (isNullConstant(CarryIn)) {  in visitSSUBO_CARRY()
3940   if (isNullConstant(N1))  in visitMULFIX()
4677   if (isNullConstant(N1))  in visitMULHS()
4737   if (isNullConstant(N1))  in visitMULHU()
4929   if (isNullConstant(N1)) {  in visitUMUL_LOHI()
5480       ((isNullConstant(LR) && isAllOnesConstant(RR)) ||  in foldLogicOfSetCCs()
5481        (isAllOnesConstant(LR) && isNullConstant(RR)))) {  in foldLogicOfSetCCs()
7042   if (isNullConstant(N1))  in visitOR()
8438   if (isNullConstant(N1))  in visitXOR()
8531       isNullConstant(N0.getOperand(0))) {  in visitXOR()
10572   if (!isNullConstant(BasePtr) || Index.getOpcode() != ISD::ADD)  in refineUniformBase()
11235   if (isNullConstant(Carry))  in visitSETCCCARRY()
16254   if (isNullConstant(Offset))  in CombineToPreIndexedLoadStore()
16449   if (isNullConstant(Offset))  in shouldCombineToPostInc()
19546         isNullConstant(InVal.getOperand(1)))  in visitINSERT_VECTOR_ELT()
20510     if (isNullConstant(Op) || isNullFPConstant(Op)) {  in reduceBuildVecToShuffle()
23211       N1.getOperand(0).isUndef() && isNullConstant(N1.getOperand(2)))  in visitINSERT_SUBVECTOR()
23372     AreAllEltsDisabled |= isNullConstant(N->getOperand(*EVLIdx));  in visitVPOp()
23892   if (!isNullConstant(N3) || !XType.bitsGE(AType))  in foldSelectCCToShiftAnd()
23901     if (!(isAllOnesConstant(N1) || (isNullConstant(N1) && N0 == N2)))  in foldSelectCCToShiftAnd()
23906     if (!(isNullConstant(N1) || (isOneConstant(N1) && N0 == N2)))  in foldSelectCCToShiftAnd()
24142       N0->getValueType(0) == VT && isNullConstant(N1) && isNullConstant(N2)) {  in SimplifySelectCC()
24168   bool Fold = N2C && isNullConstant(N3) && N2C->getAPIntValue().isPowerOf2();  in SimplifySelectCC()
24169   bool Swap = N3C && isNullConstant(N2) && N3C->getAPIntValue().isPowerOf2();  in SimplifySelectCC()