148   KnownBits LHSKnown(BitWidth), RHSKnown(BitWidth);  in SimplifyDemandedUseBits()  local
167         SimplifyDemandedBits(I, 1, DemandedFromOps, RHSKnown, Depth + 1)) {  in SimplifyDemandedUseBits()
186     if (SimplifyDemandedBits(I, 1, DemandedMask, RHSKnown, Depth + 1) ||  in SimplifyDemandedUseBits()
187         SimplifyDemandedBits(I, 0, DemandedMask & ~RHSKnown.Zero, LHSKnown,  in SimplifyDemandedUseBits()
190     assert(!RHSKnown.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()
215     if (SimplifyDemandedBits(I, 1, DemandedMask, RHSKnown, Depth + 1) ||  in SimplifyDemandedUseBits()
216         SimplifyDemandedBits(I, 0, DemandedMask & ~RHSKnown.One, LHSKnown,  in SimplifyDemandedUseBits()
219     assert(!RHSKnown.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()
243     if (SimplifyDemandedBits(I, 1, DemandedMask, RHSKnown, Depth + 1) ||  in SimplifyDemandedUseBits()
257     assert(!RHSKnown.hasConflict() && "Bits known to be one AND zero?");  in SimplifyDemandedUseBits()
260     Known = LHSKnown ^ RHSKnown;  in SimplifyDemandedUseBits()
269     if (DemandedMask.isSubsetOf(RHSKnown.Zero))  in SimplifyDemandedUseBits()
277     if (DemandedMask.isSubsetOf(RHSKnown.Zero | LHSKnown.Zero)) {  in SimplifyDemandedUseBits()
288     if (DemandedMask.isSubsetOf(RHSKnown.Zero|RHSKnown.One) &&  in SimplifyDemandedUseBits()
289         RHSKnown.One.isSubsetOf(LHSKnown.One)) {  in SimplifyDemandedUseBits()
291                                                  ~RHSKnown.One & DemandedMask);  in SimplifyDemandedUseBits()
320           (LHSKnown.One & RHSKnown.One & DemandedMask) != 0) {  in SimplifyDemandedUseBits()
321         APInt NewMask = ~(LHSKnown.One & RHSKnown.One & DemandedMask);  in SimplifyDemandedUseBits()
335     if (SimplifyDemandedBits(I, 2, DemandedMask, RHSKnown, Depth + 1) ||  in SimplifyDemandedUseBits()
338     assert(!RHSKnown.hasConflict() && "Bits known to be one AND zero?");  in SimplifyDemandedUseBits()
379     Known = KnownBits::commonBits(LHSKnown, RHSKnown);  in SimplifyDemandedUseBits()
509     if (DemandedFromOps.isSubsetOf(RHSKnown.Zero))  in SimplifyDemandedUseBits()
520                                         NSW, LHSKnown, RHSKnown);  in SimplifyDemandedUseBits()
890             SimplifyDemandedBits(I, 1, DemandedMaskRHS, RHSKnown, Depth + 1))  in SimplifyDemandedUseBits()
894                      RHSKnown.Zero.lshr(BitWidth - ShiftAmt);  in SimplifyDemandedUseBits()
896                     RHSKnown.One.lshr(BitWidth - ShiftAmt);  in SimplifyDemandedUseBits()
957   KnownBits RHSKnown(BitWidth);  in SimplifyMultipleUseDemandedBits()  local
966     computeKnownBits(I->getOperand(1), RHSKnown, Depth + 1, CxtI);  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()
992     computeKnownBits(I->getOperand(1), RHSKnown, Depth + 1, CxtI);  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()
1017     computeKnownBits(I->getOperand(1), RHSKnown, Depth + 1, CxtI);  in SimplifyMultipleUseDemandedBits()
1021     Known = LHSKnown ^ RHSKnown;  in SimplifyMultipleUseDemandedBits()
1030     if (DemandedMask.isSubsetOf(RHSKnown.Zero))  in SimplifyMultipleUseDemandedBits()