187         SimplifyDemandedBits(I, 0, DemandedMask & ~RHSKnown.Zero, LHSKnown,  in SimplifyDemandedUseBits()
197     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyDemandedUseBits()
202     if (DemandedMask.isSubsetOf(LHSKnown.Zero | RHSKnown.One))  in SimplifyDemandedUseBits()
204     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.One))  in SimplifyDemandedUseBits()
208     if (ShrinkDemandedConstant(I, 1, DemandedMask & ~LHSKnown.Zero))  in SimplifyDemandedUseBits()
226     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyDemandedUseBits()
231     if (DemandedMask.isSubsetOf(LHSKnown.One | RHSKnown.Zero))  in SimplifyDemandedUseBits()
233     if (DemandedMask.isSubsetOf(RHSKnown.One | LHSKnown.Zero))  in SimplifyDemandedUseBits()
264     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyDemandedUseBits()
269     if (DemandedMask.isSubsetOf(RHSKnown.Zero))  in SimplifyDemandedUseBits()
271     if (DemandedMask.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
277     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.Zero)) {  in SimplifyDemandedUseBits()
288     if (DemandedMask.isSubsetOf(RHSKnown.Zero|RHSKnown.One) &&  in SimplifyDemandedUseBits()
509     if (DemandedFromOps.isSubsetOf(RHSKnown.Zero))  in SimplifyDemandedUseBits()
514         DemandedFromOps.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
596       bool SignBitZero = Known.Zero.isSignBitSet();  in SimplifyDemandedUseBits()
598       Known.Zero <<= ShiftAmt;  in SimplifyDemandedUseBits()
602         Known.Zero.setLowBits(ShiftAmt);  in SimplifyDemandedUseBits()
608           Known.Zero.setSignBit();  in SimplifyDemandedUseBits()
674       Known.Zero.lshrInPlace(ShiftAmt);  in SimplifyDemandedUseBits()
677         Known.Zero.setHighBits(ShiftAmt);  // high bits known zero.  in SimplifyDemandedUseBits()
726       Known.Zero.lshrInPlace(ShiftAmt);  in SimplifyDemandedUseBits()
732       if (Known.Zero[BitWidth-ShiftAmt-1] ||  in SimplifyDemandedUseBits()
762       Known.Zero.setHighBits(std::min(  in SimplifyDemandedUseBits()
763           BitWidth, LHSKnown.Zero.countLeadingOnes() + RHSTrailingZeros));  in SimplifyDemandedUseBits()
787         Known.Zero = LHSKnown.Zero & LowBits;  in SimplifyDemandedUseBits()
792         if (LHSKnown.isNonNegative() || LowBits.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
793           Known.Zero |= ~LowBits;  in SimplifyDemandedUseBits()
823     Known.Zero = APInt::getHighBitsSet(BitWidth, Leaders) & DemandedMask;  in SimplifyDemandedUseBits()
893         Known.Zero = LHSKnown.Zero.shl(ShiftAmt) |  in SimplifyDemandedUseBits()
894                      RHSKnown.Zero.lshr(BitWidth - ShiftAmt);  in SimplifyDemandedUseBits()
942   if (DemandedMask.isSubsetOf(Known.Zero|Known.One))  in SimplifyDemandedUseBits()
974     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyMultipleUseDemandedBits()
980     if (DemandedMask.isSubsetOf(LHSKnown.Zero | RHSKnown.One))  in SimplifyMultipleUseDemandedBits()
982     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.One))  in SimplifyMultipleUseDemandedBits()
1000     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyMultipleUseDemandedBits()
1006     if (DemandedMask.isSubsetOf(LHSKnown.One | RHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
1008     if (DemandedMask.isSubsetOf(RHSKnown.One | LHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
1025     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyMultipleUseDemandedBits()
1030     if (DemandedMask.isSubsetOf(RHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
1032     if (DemandedMask.isSubsetOf(LHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
1043     if (DemandedMask.isSubsetOf(Known.Zero | Known.One))  in SimplifyMultipleUseDemandedBits()
1070     if (DemandedMask.isSubsetOf(Known.Zero|Known.One))  in SimplifyMultipleUseDemandedBits()
1112   Known.Zero.setLowBits(ShlAmt - 1);  in simplifyShrShlDemandedBits()
1113   Known.Zero &= DemandedMask;  in simplifyShrShlDemandedBits()