169         SimplifyDemandedBits(I, 0, DemandedMask & ~RHSKnown.Zero, LHSKnown,  in SimplifyDemandedUseBits()
176     APInt IKnownZero = RHSKnown.Zero | LHSKnown.Zero;  in SimplifyDemandedUseBits()
187     if (DemandedMask.isSubsetOf(LHSKnown.Zero | RHSKnown.One))  in SimplifyDemandedUseBits()
189     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.One))  in SimplifyDemandedUseBits()
193     if (ShrinkDemandedConstant(I, 1, DemandedMask & ~LHSKnown.Zero))  in SimplifyDemandedUseBits()
196     Known.Zero = std::move(IKnownZero);  in SimplifyDemandedUseBits()
210     APInt IKnownZero = RHSKnown.Zero & LHSKnown.Zero;  in SimplifyDemandedUseBits()
221     if (DemandedMask.isSubsetOf(LHSKnown.One | RHSKnown.Zero))  in SimplifyDemandedUseBits()
223     if (DemandedMask.isSubsetOf(RHSKnown.One | LHSKnown.Zero))  in SimplifyDemandedUseBits()
230     Known.Zero = std::move(IKnownZero);  in SimplifyDemandedUseBits()
242     APInt IKnownZero = (RHSKnown.Zero & LHSKnown.Zero) |  in SimplifyDemandedUseBits()
245     APInt IKnownOne =  (RHSKnown.Zero & LHSKnown.One) |  in SimplifyDemandedUseBits()
246                        (RHSKnown.One & LHSKnown.Zero);  in SimplifyDemandedUseBits()
255     if (DemandedMask.isSubsetOf(RHSKnown.Zero))  in SimplifyDemandedUseBits()
257     if (DemandedMask.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
263     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.Zero)) {  in SimplifyDemandedUseBits()
274     if (DemandedMask.isSubsetOf(RHSKnown.Zero|RHSKnown.One) &&  in SimplifyDemandedUseBits()
312     Known.Zero = std::move(IKnownZero);  in SimplifyDemandedUseBits()
358     Known.Zero = RHSKnown.Zero & LHSKnown.Zero;  in SimplifyDemandedUseBits()
372       Known.Zero.setBitsFrom(SrcBitWidth);  in SimplifyDemandedUseBits()
452     if (DemandedFromOps.isSubsetOf(RHSKnown.Zero))  in SimplifyDemandedUseBits()
458         DemandedFromOps.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
490       Known.Zero <<= ShiftAmt;  in SimplifyDemandedUseBits()
494         Known.Zero.setLowBits(ShiftAmt);  in SimplifyDemandedUseBits()
514       Known.Zero.lshrInPlace(ShiftAmt);  in SimplifyDemandedUseBits()
517         Known.Zero.setHighBits(ShiftAmt);  // high bits known zero.  in SimplifyDemandedUseBits()
563       Known.Zero.lshrInPlace(ShiftAmt);  in SimplifyDemandedUseBits()
569       if (Known.Zero[BitWidth-ShiftAmt-1] ||  in SimplifyDemandedUseBits()
597       Known.Zero.setHighBits(std::min(  in SimplifyDemandedUseBits()
598           BitWidth, LHSKnown.Zero.countLeadingOnes() + RHSTrailingZeros));  in SimplifyDemandedUseBits()
619         Known.Zero = LHSKnown.Zero & LowBits;  in SimplifyDemandedUseBits()
624         if (LHSKnown.isNonNegative() || LowBits.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
625           Known.Zero |= ~LowBits;  in SimplifyDemandedUseBits()
654     Known.Zero = APInt::getHighBitsSet(BitWidth, Leaders) & DemandedMask;  in SimplifyDemandedUseBits()
711         Known.Zero = LHSKnown.Zero.shl(ShiftAmt) |  in SimplifyDemandedUseBits()
712                      RHSKnown.Zero.lshr(BitWidth - ShiftAmt);  in SimplifyDemandedUseBits()
742         Known.Zero.setBitsFrom(ArgWidth);  in SimplifyDemandedUseBits()
746         Known.Zero.setBitsFrom(32);  in SimplifyDemandedUseBits()
756   if (DemandedMask.isSubsetOf(Known.Zero|Known.One))  in SimplifyDemandedUseBits()
787     APInt IKnownZero = RHSKnown.Zero | LHSKnown.Zero;  in SimplifyMultipleUseDemandedBits()
799     if (DemandedMask.isSubsetOf(LHSKnown.Zero | RHSKnown.One))  in SimplifyMultipleUseDemandedBits()
801     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.One))  in SimplifyMultipleUseDemandedBits()
804     Known.Zero = std::move(IKnownZero);  in SimplifyMultipleUseDemandedBits()
818     APInt IKnownZero = RHSKnown.Zero & LHSKnown.Zero;  in SimplifyMultipleUseDemandedBits()
830     if (DemandedMask.isSubsetOf(LHSKnown.One | RHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
832     if (DemandedMask.isSubsetOf(RHSKnown.One | LHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
835     Known.Zero = std::move(IKnownZero);  in SimplifyMultipleUseDemandedBits()
848     APInt IKnownZero = (RHSKnown.Zero & LHSKnown.Zero) |  in SimplifyMultipleUseDemandedBits()
851     APInt IKnownOne =  (RHSKnown.Zero & LHSKnown.One) |  in SimplifyMultipleUseDemandedBits()
852                        (RHSKnown.One & LHSKnown.Zero);  in SimplifyMultipleUseDemandedBits()
861     if (DemandedMask.isSubsetOf(RHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
863     if (DemandedMask.isSubsetOf(LHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
867     Known.Zero = std::move(IKnownZero);  in SimplifyMultipleUseDemandedBits()
878     if (DemandedMask.isSubsetOf(Known.Zero|Known.One))  in SimplifyMultipleUseDemandedBits()
923   Known.Zero.setLowBits(ShlAmt - 1);  in simplifyShrShlDemandedBits()
924   Known.Zero &= DemandedMask;  in simplifyShrShlDemandedBits()