155   APInt RHSKnownZero(BitWidth, 0), RHSKnownOne(BitWidth, 0);  in SimplifyDemandedUseBits()  local
173       computeKnownBits(I->getOperand(1), RHSKnownZero, RHSKnownOne, Depth + 1,  in SimplifyDemandedUseBits()
184       if ((DemandedMask & ~RHSKnownZero & LHSKnownOne) ==  in SimplifyDemandedUseBits()
185           (DemandedMask & ~RHSKnownZero))  in SimplifyDemandedUseBits()
189       if ((DemandedMask & (RHSKnownZero|LHSKnownZero)) == DemandedMask)  in SimplifyDemandedUseBits()
197       computeKnownBits(I->getOperand(1), RHSKnownZero, RHSKnownOne, Depth + 1,  in SimplifyDemandedUseBits()
205       if ((DemandedMask & ~LHSKnownOne & RHSKnownZero) ==  in SimplifyDemandedUseBits()
214       if ((DemandedMask & (~RHSKnownZero) & LHSKnownOne) ==  in SimplifyDemandedUseBits()
215           (DemandedMask & (~RHSKnownZero)))  in SimplifyDemandedUseBits()
224       computeKnownBits(I->getOperand(1), RHSKnownZero, RHSKnownOne, Depth + 1,  in SimplifyDemandedUseBits()
231       if ((DemandedMask & RHSKnownZero) == DemandedMask)  in SimplifyDemandedUseBits()
255     if (SimplifyDemandedBits(I->getOperandUse(1), DemandedMask, RHSKnownZero,  in SimplifyDemandedUseBits()
257         SimplifyDemandedBits(I->getOperandUse(0), DemandedMask & ~RHSKnownZero,  in SimplifyDemandedUseBits()
260     assert(!(RHSKnownZero & RHSKnownOne) && "Bits known to be one AND zero?");  in SimplifyDemandedUseBits()
265     if ((DemandedMask & ((RHSKnownZero | LHSKnownZero)|  in SimplifyDemandedUseBits()
274     if ((DemandedMask & ~RHSKnownZero & LHSKnownOne) ==  in SimplifyDemandedUseBits()
275         (DemandedMask & ~RHSKnownZero))  in SimplifyDemandedUseBits()
279     if ((DemandedMask & (RHSKnownZero|LHSKnownZero)) == DemandedMask)  in SimplifyDemandedUseBits()
289     KnownZero = RHSKnownZero | LHSKnownZero;  in SimplifyDemandedUseBits()
293     if (SimplifyDemandedBits(I->getOperandUse(1), DemandedMask, RHSKnownZero,  in SimplifyDemandedUseBits()
298     assert(!(RHSKnownZero & RHSKnownOne) && "Bits known to be one AND zero?");  in SimplifyDemandedUseBits()
303     if ((DemandedMask & ((RHSKnownZero & LHSKnownZero)|  in SimplifyDemandedUseBits()
309     if ((DemandedMask & ~LHSKnownOne & RHSKnownZero) ==  in SimplifyDemandedUseBits()
318     if ((DemandedMask & (~RHSKnownZero) & LHSKnownOne) ==  in SimplifyDemandedUseBits()
319         (DemandedMask & (~RHSKnownZero)))  in SimplifyDemandedUseBits()
330     KnownZero = RHSKnownZero & LHSKnownZero;  in SimplifyDemandedUseBits()
335     if (SimplifyDemandedBits(I->getOperandUse(1), DemandedMask, RHSKnownZero,  in SimplifyDemandedUseBits()
340     assert(!(RHSKnownZero & RHSKnownOne) && "Bits known to be one AND zero?");  in SimplifyDemandedUseBits()
344     APInt IKnownZero = (RHSKnownZero & LHSKnownZero) |  in SimplifyDemandedUseBits()
347     APInt IKnownOne =  (RHSKnownZero & LHSKnownOne) |  in SimplifyDemandedUseBits()
357     if ((DemandedMask & RHSKnownZero) == DemandedMask)  in SimplifyDemandedUseBits()
365     if ((DemandedMask & ~RHSKnownZero & ~LHSKnownZero) == 0) {  in SimplifyDemandedUseBits()
376     if ((DemandedMask & (RHSKnownZero|RHSKnownOne)) == DemandedMask) {  in SimplifyDemandedUseBits()
416     KnownZero= (RHSKnownZero & LHSKnownZero) | (RHSKnownOne & LHSKnownOne);  in SimplifyDemandedUseBits()
418     KnownOne = (RHSKnownZero & LHSKnownOne) | (RHSKnownOne & LHSKnownZero);  in SimplifyDemandedUseBits()
422     if (SimplifyDemandedBits(I->getOperandUse(2), DemandedMask, RHSKnownZero,  in SimplifyDemandedUseBits()
427     assert(!(RHSKnownZero & RHSKnownOne) && "Bits known to be one AND zero?");  in SimplifyDemandedUseBits()
437     KnownZero = RHSKnownZero & LHSKnownZero;  in SimplifyDemandedUseBits()