963   if (!N1C || !N1C->isOne())  in combineShiftToAVG()
982         ConstOp->isOne()) {  in combineShiftToAVG()
989         ConstOp->isOne()) {  in combineShiftToAVG()
2036     if (DemandedBits.isOne())  in SimplifyDemandedBits()
2341     if (DemandedBits.isOne() && !TLO.LegalOps && !VT.isVector())  in SimplifyDemandedBits()
2835     if (Op.getOpcode() == ISD::SUB && DemandedBits.isOne() &&  in SimplifyDemandedBits()
2863     if (C && !C->isAllOnes() && !C->isOne() &&  in SimplifyDemandedBits()
3924     return CVal.isOne();  in isConstTrueVal()
3959     return N->isOne();  in isExtendedTrueVal()
3966     return (N->isOne() && !SExt) || (SExt && (N->getValueType(0) != MVT::i1));  in isExtendedTrueVal()
4530     if (N0.getOpcode() == ISD::SRL && (C1.isZero() || C1.isOne()) &&  in SimplifySetCC()
4794     } else if ((N1C->isZero() || N1C->isOne()) &&  in SimplifySetCC()
4804         bool TrueWhenTrue = (Cond == ISD::SETEQ) ^ (!N1C->isOne());  in SimplifySetCC()
4844       } else if (N1C->isOne()) {  in SimplifySetCC()
6330     if (Divisor.isOne() || Divisor.isAllOnes()) {  in BuildSDIV()
6500     if (Divisor.isOne()) {  in BuildUDIV()
6740     bool TautologicalLane = D.isOne() || TautologicalInvertedLane;  in prepareUREMEqFold()
6752     assert((!D.isOne() || (K == 0)) && "For divisor '1' we won't rotate.");  in prepareUREMEqFold()
6759     AllDivisorsArePowerOfTwo &= D0.isOne();  in prepareUREMEqFold()
6765     assert((D0 * P).isOne() && "Multiplicative inverse basic check failed.");  in prepareUREMEqFold()
6998     HadOneDivisor |= D.isOne();  in prepareSREMEqFold()
6999     AllDivisorsAreOnes &= D.isOne();  in prepareSREMEqFold()
7003     assert((!D.isOne() || (K == 0)) && "For divisor '1' we won't rotate.");  in prepareSREMEqFold()
7014     AllDivisorsArePowerOfTwo &= D0.isOne();  in prepareSREMEqFold()
7020     assert((D0 * P).isOne() && "Multiplicative inverse basic check failed.");  in prepareSREMEqFold()
7041     if (D0.isOne()) {  in prepareSREMEqFold()
7050     if (D.isOne()) {  in prepareSREMEqFold()
7812   if (HalfMaxPlus1.urem(Divisor).isOne()) {  in expandDIVREMByConstant()