4614         isNullConstant(BitcastOp->getOperand(0)))  in isFloatingPointZero()
4735   if (isNullConstant(RHS)) {  in getARMCmp()
5326     if (isNullConstant(LowerSatConstant)) {  in LowerSELECT_CC()
5650   if (LHS.getResNo() == 1 && (isOneConstant(RHS) || isNullConstant(RHS)) &&  in LowerBR_CC()
9893            isNullConstant(N->getOperand(0))));  in isZeroVector()
12049   return AllOnes ? isAllOnesConstant(N) : isNullConstant(N);  in isZeroOrAllOnes()
12649   if (!isNullConstant(UmlalNode->getOperand(3)))  in AddCombineTo64bitUMAAL()
12652   if ((isNullConstant(AddeNode->getOperand(0)) &&  in AddCombineTo64bitUMAAL()
12655        isNullConstant(AddeNode->getOperand(1)))) {  in AddCombineTo64bitUMAAL()
12683       isNullConstant(AddeNode->getOperand(0)) &&  in PerformUMLALCombine()
12684       isNullConstant(AddeNode->getOperand(1)) &&  in PerformUMLALCombine()
12704         isNullConstant(LHS->getOperand(0)) &&  in PerformAddcSubcCombine()
12705         isNullConstant(LHS->getOperand(1)) && isOneConstant(RHS)) {  in PerformAddcSubcCombine()
13335   if (N->getValueType(0) != MVT::i32 || !isNullConstant(N->getOperand(0)))  in PerformSubCSINCCombine()
13477         isNullConstant(Mask->getOperand(1)) &&  in PerformMVEVMULLCombine()
13479         isNullConstant(Mask->getOperand(3)))  in PerformMVEVMULLCombine()
16889   if (!isNullConstant(CmpZ->getOperand(1)))  in PerformCMOVToBFICombine()
17239   if (isNullConstant(FalseVal)) {  in PerformCMOVCombine()
17268     } else if (CC == ARMCC::NE && !isNullConstant(RHS) &&  in PerformCMOVCombine()
17280   } else if (isNullConstant(TrueVal)) {  in PerformCMOVCombine()
17281     if (CC == ARMCC::EQ && !isNullConstant(RHS) &&  in PerformCMOVCombine()
17314        (FalseVal == LHS && isNullConstant(RHS))) &&  in PerformCMOVCombine()
18819       if (Op->getOpcode() == ARMISD::ADDE && isNullConstant(LHS) &&  in computeKnownBitsForTargetNode()
18820           isNullConstant(RHS)) {  in computeKnownBitsForTargetNode()