148   KnownBits LHSKnown(BitWidth), RHSKnown(BitWidth);  in SimplifyDemandedUseBits()  local
165         SimplifyDemandedBits(I, 0, DemandedFromOps, LHSKnown, Depth + 1) ||  in SimplifyDemandedUseBits()
187         SimplifyDemandedBits(I, 0, DemandedMask & ~RHSKnown.Zero, LHSKnown,  in SimplifyDemandedUseBits()
191     assert(!LHSKnown.hasConflict() && "Bits known to be one AND zero?");  in SimplifyDemandedUseBits()
193     Known = LHSKnown & RHSKnown;  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()
216         SimplifyDemandedBits(I, 0, DemandedMask & ~RHSKnown.One, LHSKnown,  in SimplifyDemandedUseBits()
220     assert(!LHSKnown.hasConflict() && "Bits known to be one AND zero?");  in SimplifyDemandedUseBits()
222     Known = LHSKnown | RHSKnown;  in SimplifyDemandedUseBits()
231     if (DemandedMask.isSubsetOf(LHSKnown.One | RHSKnown.Zero))  in SimplifyDemandedUseBits()
233     if (DemandedMask.isSubsetOf(RHSKnown.One | LHSKnown.Zero))  in SimplifyDemandedUseBits()
244         SimplifyDemandedBits(I, 0, DemandedMask, LHSKnown, Depth + 1))  in SimplifyDemandedUseBits()
258     assert(!LHSKnown.hasConflict() && "Bits known to be one AND zero?");  in SimplifyDemandedUseBits()
260     Known = LHSKnown ^ RHSKnown;  in SimplifyDemandedUseBits()
271     if (DemandedMask.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
277     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.Zero)) {  in SimplifyDemandedUseBits()
289         RHSKnown.One.isSubsetOf(LHSKnown.One)) {  in SimplifyDemandedUseBits()
320           (LHSKnown.One & RHSKnown.One & DemandedMask) != 0) {  in SimplifyDemandedUseBits()
321         APInt NewMask = ~(LHSKnown.One & RHSKnown.One & DemandedMask);  in SimplifyDemandedUseBits()
336         SimplifyDemandedBits(I, 1, DemandedMask, LHSKnown, Depth + 1))  in SimplifyDemandedUseBits()
339     assert(!LHSKnown.hasConflict() && "Bits known to be one AND zero?");  in SimplifyDemandedUseBits()
379     Known = KnownBits::commonBits(LHSKnown, RHSKnown);  in SimplifyDemandedUseBits()
514         DemandedFromOps.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
520                                         NSW, LHSKnown, RHSKnown);  in SimplifyDemandedUseBits()
758       if (SimplifyDemandedBits(I, 0, DemandedMaskIn, LHSKnown, Depth + 1))  in SimplifyDemandedUseBits()
763           BitWidth, LHSKnown.Zero.countLeadingOnes() + RHSTrailingZeros));  in SimplifyDemandedUseBits()
783         if (SimplifyDemandedBits(I, 0, Mask2, LHSKnown, Depth + 1))  in SimplifyDemandedUseBits()
787         Known.Zero = LHSKnown.Zero & LowBits;  in SimplifyDemandedUseBits()
788         Known.One = LHSKnown.One & LowBits;  in SimplifyDemandedUseBits()
792         if (LHSKnown.isNonNegative() || LowBits.isSubsetOf(LHSKnown.Zero))  in SimplifyDemandedUseBits()
797         if (LHSKnown.isNegative() && LowBits.intersects(LHSKnown.One))  in SimplifyDemandedUseBits()
808       computeKnownBits(I->getOperand(0), LHSKnown, Depth + 1, CxtI);  in SimplifyDemandedUseBits()
810       if (LHSKnown.isNonNegative())  in SimplifyDemandedUseBits()
889         if (SimplifyDemandedBits(I, 0, DemandedMaskLHS, LHSKnown, Depth + 1) ||  in SimplifyDemandedUseBits()
893         Known.Zero = LHSKnown.Zero.shl(ShiftAmt) |  in SimplifyDemandedUseBits()
895         Known.One = LHSKnown.One.shl(ShiftAmt) |  in SimplifyDemandedUseBits()
956   KnownBits LHSKnown(BitWidth);  in SimplifyMultipleUseDemandedBits()  local
967     computeKnownBits(I->getOperand(0), LHSKnown, Depth + 1,  in SimplifyMultipleUseDemandedBits()
970     Known = LHSKnown & RHSKnown;  in SimplifyMultipleUseDemandedBits()
980     if (DemandedMask.isSubsetOf(LHSKnown.Zero | RHSKnown.One))  in SimplifyMultipleUseDemandedBits()
982     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.One))  in SimplifyMultipleUseDemandedBits()
993     computeKnownBits(I->getOperand(0), LHSKnown, Depth + 1,  in SimplifyMultipleUseDemandedBits()
996     Known = LHSKnown | RHSKnown;  in SimplifyMultipleUseDemandedBits()
1006     if (DemandedMask.isSubsetOf(LHSKnown.One | RHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
1008     if (DemandedMask.isSubsetOf(RHSKnown.One | LHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()
1018     computeKnownBits(I->getOperand(0), LHSKnown, Depth + 1,  in SimplifyMultipleUseDemandedBits()
1021     Known = LHSKnown ^ RHSKnown;  in SimplifyMultipleUseDemandedBits()
1032     if (DemandedMask.isSubsetOf(LHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()