950   if (!N1C || !N1C->isOne())  in combineShiftToAVG()
969         ConstOp->isOne()) {  in combineShiftToAVG()
976         ConstOp->isOne()) {  in combineShiftToAVG()
2005     if (DemandedBits.isOne())  in SimplifyDemandedBits()
2311     if (DemandedBits.isOne() && !TLO.LegalOps && !VT.isVector())  in SimplifyDemandedBits()
2797     if (Op.getOpcode() == ISD::SUB && DemandedBits.isOne() &&  in SimplifyDemandedBits()
2825     if (C && !C->isAllOnes() && !C->isOne() &&  in SimplifyDemandedBits()
3860     return CVal.isOne();  in isConstTrueVal()
3895     return N->isOne();  in isExtendedTrueVal()
3902     return (N->isOne() && !SExt) || (SExt && (N->getValueType(0) != MVT::i1));  in isExtendedTrueVal()
4473     if (N0.getOpcode() == ISD::SRL && (C1.isZero() || C1.isOne()) &&  in SimplifySetCC()
4723     } else if ((N1C->isZero() || N1C->isOne()) &&  in SimplifySetCC()
4731         bool TrueWhenTrue = (Cond == ISD::SETEQ) ^ (!N1C->isOne());  in SimplifySetCC()
4769       } else if (N1C->isOne()) {  in SimplifySetCC()
6198     if (Divisor.isOne() || Divisor.isAllOnes()) {  in BuildSDIV()
6372     if (Divisor.isOne()) {  in BuildUDIV()
6611     bool TautologicalLane = D.isOne() || TautologicalInvertedLane;  in prepareUREMEqFold()
6623     assert((!D.isOne() || (K == 0)) && "For divisor '1' we won't rotate.");  in prepareUREMEqFold()
6630     AllDivisorsArePowerOfTwo &= D0.isOne();  in prepareUREMEqFold()
6639     assert((D0 * P).isOne() && "Multiplicative inverse basic check failed.");  in prepareUREMEqFold()
6860     HadOneDivisor |= D.isOne();  in prepareSREMEqFold()
6861     AllDivisorsAreOnes &= D.isOne();  in prepareSREMEqFold()
6865     assert((!D.isOne() || (K == 0)) && "For divisor '1' we won't rotate.");  in prepareSREMEqFold()
6876     AllDivisorsArePowerOfTwo &= D0.isOne();  in prepareSREMEqFold()
6885     assert((D0 * P).isOne() && "Multiplicative inverse basic check failed.");  in prepareSREMEqFold()
6907     if (D.isOne()) {  in prepareSREMEqFold()
7669   if (HalfMaxPlus1.urem(Divisor).isOne()) {  in expandDIVREMByConstant()