209         SimplifyDemandedBits(I, 0, DemandedMask & ~RHSKnown.Zero, LHSKnown,  in SimplifyDemandedUseBits()
220     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyDemandedUseBits()
225     if (DemandedMask.isSubsetOf(LHSKnown.Zero | RHSKnown.One))  in SimplifyDemandedUseBits()
227     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.One))  in SimplifyDemandedUseBits()
231     if (ShrinkDemandedConstant(I, 1, DemandedMask & ~LHSKnown.Zero))  in SimplifyDemandedUseBits()
253     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyDemandedUseBits()
258     if (DemandedMask.isSubsetOf(LHSKnown.One | RHSKnown.Zero))  in SimplifyDemandedUseBits()
260     if (DemandedMask.isSubsetOf(RHSKnown.One | LHSKnown.Zero))  in SimplifyDemandedUseBits()
302     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyDemandedUseBits()
307     if (DemandedMask.isSubsetOf(RHSKnown.Zero))  in SimplifyDemandedUseBits()
309     if (DemandedMask.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
315     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.Zero)) {  in SimplifyDemandedUseBits()
328     if (DemandedMask.isSubsetOf(RHSKnown.Zero|RHSKnown.One) &&  in SimplifyDemandedUseBits()
541     unsigned NTZ = (~DemandedMask & RHSKnown.Zero).countr_one();  in SimplifyDemandedUseBits()
550     if (DemandedFromOps.isSubsetOf(RHSKnown.Zero))  in SimplifyDemandedUseBits()
552     if (DemandedFromOps.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
583     unsigned NTZ = (~DemandedMask & RHSKnown.Zero).countr_one();  in SimplifyDemandedUseBits()
592     if (DemandedFromOps.isSubsetOf(RHSKnown.Zero))  in SimplifyDemandedUseBits()
596     if (DemandedFromOps.isOne() && DemandedFromOps.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
740       Known.Zero.lshrInPlace(ShiftAmt);  in SimplifyDemandedUseBits()
743         Known.Zero.setHighBits(ShiftAmt);  // high bits known zero.  in SimplifyDemandedUseBits()
790       Known.Zero.lshrInPlace(ShiftAmt);  in SimplifyDemandedUseBits()
796       if (Known.Zero[BitWidth-ShiftAmt-1] ||  in SimplifyDemandedUseBits()
807         Known.Zero &= ~HighBits;  in SimplifyDemandedUseBits()
854         Known.Zero = LHSKnown.Zero & LowBits;  in SimplifyDemandedUseBits()
859         if (LHSKnown.isNonNegative() || LowBits.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
860           Known.Zero |= ~LowBits;  in SimplifyDemandedUseBits()
939                 I, 1, (DemandedMask & ~LHSKnown.Zero).zextOrTrunc(MaskWidth),  in SimplifyDemandedUseBits()
955         if (DemandedMask.isSubsetOf(Known.Zero) &&  in SimplifyDemandedUseBits()
964         if (DemandedMask.isSubsetOf(RHSKnown.One | LHSKnown.Zero))  in SimplifyDemandedUseBits()
969                 I, 1, (DemandedMask & ~LHSKnown.Zero).zextOrTrunc(MaskWidth)))  in SimplifyDemandedUseBits()
998           if (DemandedMaskLHS.isSubsetOf(LHSKnown.Zero | LHSKnown.One) &&  in SimplifyDemandedUseBits()
1005           if (DemandedMaskRHS.isSubsetOf(RHSKnown.Zero | RHSKnown.One) &&  in SimplifyDemandedUseBits()
1012         Known.Zero = LHSKnown.Zero.shl(ShiftAmt) |  in SimplifyDemandedUseBits()
1013                      RHSKnown.Zero.lshr(BitWidth - ShiftAmt);  in SimplifyDemandedUseBits()
1061     Known.Zero.setLowBits(Log2(Alignment));  in SimplifyDemandedUseBits()
1068   if (!V->getType()->isPointerTy() && DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyDemandedUseBits()
1111     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyMultipleUseDemandedBits()
1116     if (DemandedMask.isSubsetOf(LHSKnown.Zero | RHSKnown.One))  in SimplifyMultipleUseDemandedBits()
1118     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.One))  in SimplifyMultipleUseDemandedBits()
1132     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyMultipleUseDemandedBits()
1139     if (DemandedMask.isSubsetOf(LHSKnown.One | RHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
1141     if (DemandedMask.isSubsetOf(RHSKnown.One | LHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
1155     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyMultipleUseDemandedBits()
1161     if (DemandedMask.isSubsetOf(RHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
1163     if (DemandedMask.isSubsetOf(LHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
1175     if (DemandedFromOps.isSubsetOf(RHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
1179     if (DemandedFromOps.isSubsetOf(LHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
1194     if (DemandedFromOps.isSubsetOf(RHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
1209     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyMultipleUseDemandedBits()
1236     if (DemandedMask.isSubsetOf(Known.Zero|Known.One))  in SimplifyMultipleUseDemandedBits()
1278   Known.Zero.setLowBits(ShlAmt - 1);  in simplifyShrShlDemandedBits()
1279   Known.Zero &= DemandedMask;  in simplifyShrShlDemandedBits()