164         SimplifyDemandedBits(I, 0, DemandedMask & ~RHSKnown.Zero, LHSKnown,  in SimplifyDemandedUseBits()
174     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyDemandedUseBits()
179     if (DemandedMask.isSubsetOf(LHSKnown.Zero | RHSKnown.One))  in SimplifyDemandedUseBits()
181     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.One))  in SimplifyDemandedUseBits()
185     if (ShrinkDemandedConstant(I, 1, DemandedMask & ~LHSKnown.Zero))  in SimplifyDemandedUseBits()
203     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyDemandedUseBits()
208     if (DemandedMask.isSubsetOf(LHSKnown.One | RHSKnown.Zero))  in SimplifyDemandedUseBits()
210     if (DemandedMask.isSubsetOf(RHSKnown.One | LHSKnown.Zero))  in SimplifyDemandedUseBits()
241     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyDemandedUseBits()
246     if (DemandedMask.isSubsetOf(RHSKnown.Zero))  in SimplifyDemandedUseBits()
248     if (DemandedMask.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
254     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.Zero)) {  in SimplifyDemandedUseBits()
265     if (DemandedMask.isSubsetOf(RHSKnown.Zero|RHSKnown.One) &&  in SimplifyDemandedUseBits()
515     if (DemandedFromOps.isSubsetOf(RHSKnown.Zero))  in SimplifyDemandedUseBits()
521         DemandedFromOps.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
554       bool SignBitZero = Known.Zero.isSignBitSet();  in SimplifyDemandedUseBits()
556       Known.Zero <<= ShiftAmt;  in SimplifyDemandedUseBits()
560         Known.Zero.setLowBits(ShiftAmt);  in SimplifyDemandedUseBits()
566           Known.Zero.setSignBit();  in SimplifyDemandedUseBits()
604       Known.Zero.lshrInPlace(ShiftAmt);  in SimplifyDemandedUseBits()
607         Known.Zero.setHighBits(ShiftAmt);  // high bits known zero.  in SimplifyDemandedUseBits()
655       Known.Zero.lshrInPlace(ShiftAmt);  in SimplifyDemandedUseBits()
661       if (Known.Zero[BitWidth-ShiftAmt-1] ||  in SimplifyDemandedUseBits()
691       Known.Zero.setHighBits(std::min(  in SimplifyDemandedUseBits()
692           BitWidth, LHSKnown.Zero.countLeadingOnes() + RHSTrailingZeros));  in SimplifyDemandedUseBits()
716         Known.Zero = LHSKnown.Zero & LowBits;  in SimplifyDemandedUseBits()
721         if (LHSKnown.isNonNegative() || LowBits.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
722           Known.Zero |= ~LowBits;  in SimplifyDemandedUseBits()
752     Known.Zero = APInt::getHighBitsSet(BitWidth, Leaders) & DemandedMask;  in SimplifyDemandedUseBits()
825         Known.Zero = LHSKnown.Zero.shl(ShiftAmt) |  in SimplifyDemandedUseBits()
826                      RHSKnown.Zero.lshr(BitWidth - ShiftAmt);  in SimplifyDemandedUseBits()
851   if (DemandedMask.isSubsetOf(Known.Zero|Known.One))  in SimplifyDemandedUseBits()
883     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyMultipleUseDemandedBits()
889     if (DemandedMask.isSubsetOf(LHSKnown.Zero | RHSKnown.One))  in SimplifyMultipleUseDemandedBits()
891     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.One))  in SimplifyMultipleUseDemandedBits()
909     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyMultipleUseDemandedBits()
915     if (DemandedMask.isSubsetOf(LHSKnown.One | RHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
917     if (DemandedMask.isSubsetOf(RHSKnown.One | LHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
934     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyMultipleUseDemandedBits()
939     if (DemandedMask.isSubsetOf(RHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
941     if (DemandedMask.isSubsetOf(LHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
952     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyMultipleUseDemandedBits()
979     if (DemandedMask.isSubsetOf(Known.Zero|Known.One))  in SimplifyMultipleUseDemandedBits()
1021   Known.Zero.setLowBits(ShlAmt - 1);  in simplifyShrShlDemandedBits()
1022   Known.Zero &= DemandedMask;  in simplifyShrShlDemandedBits()