56     const APInt &AOut, APInt &AB, KnownBits &Known, KnownBits &Known2,  in determineLiveOperandBits()
105           AB = APInt::getHighBitsSet(BitWidth,  in determineLiveOperandBits()
115           AB = APInt::getLowBitsSet(BitWidth,  in determineLiveOperandBits()
121         const APInt *SA;  in determineLiveOperandBits()
147         AB = APInt::getBitsSetFrom(BitWidth, AOut.countr_zero());  in determineLiveOperandBits()
172     AB = APInt::getLowBitsSet(BitWidth, AOut.getActiveBits());  in determineLiveOperandBits()
176       const APInt *ShiftAmtC;  in determineLiveOperandBits()
185           AB |= APInt::getHighBitsSet(BitWidth, ShiftAmt+1);  in determineLiveOperandBits()
187           AB |= APInt::getHighBitsSet(BitWidth, ShiftAmt);  in determineLiveOperandBits()
193       const APInt *ShiftAmtC;  in determineLiveOperandBits()
201           AB |= APInt::getLowBitsSet(BitWidth, ShiftAmt);  in determineLiveOperandBits()
207       const APInt *ShiftAmtC;  in determineLiveOperandBits()
214         if ((AOut & APInt::getHighBitsSet(BitWidth, ShiftAmt))  in determineLiveOperandBits()
221           AB |= APInt::getLowBitsSet(BitWidth, ShiftAmt);  in determineLiveOperandBits()
266     if ((AOut & APInt::getHighBitsSet(AOut.getBitWidth(),  in determineLiveOperandBits()
322           AliveBits[J] = APInt::getAllOnes(T->getScalarSizeInBits());  in performAnalysis()
339     APInt AOut;  in performAnalysis()
367         APInt AB = APInt::getAllOnes(BitWidth);  in performAnalysis()
369           AB = APInt(BitWidth, 0);  in performAnalysis()
400 APInt DemandedBits::getDemandedBits(Instruction *I) {  in getDemandedBits()
408   return APInt::getAllOnes(DL.getTypeSizeInBits(I->getType()->getScalarType()));  in getDemandedBits()
411 APInt DemandedBits::getDemandedBits(Use *U) {  in getDemandedBits()
420     return APInt::getAllOnes(BitWidth);  in getDemandedBits()
423     return APInt(BitWidth, 0);  in getDemandedBits()
427   APInt AOut = getDemandedBits(UserI);  in getDemandedBits()
428   APInt AB = APInt::getAllOnes(BitWidth);  in getDemandedBits()
470   auto PrintDB = [&](const Instruction *I, const APInt &A, Value *V = nullptr) {  in print()
492 static APInt determineLiveOperandBitsAddCarry(unsigned OperandNo,  in determineLiveOperandBitsAddCarry()
493                                               const APInt &AOut,  in determineLiveOperandBitsAddCarry()
507   APInt Bound = (LHS.Zero & RHS.Zero) | (LHS.One & RHS.One);  in determineLiveOperandBitsAddCarry()
514   APInt RBound = Bound.reverseBits();  in determineLiveOperandBitsAddCarry()
515   APInt RAOut = AOut.reverseBits();  in determineLiveOperandBitsAddCarry()
516   APInt RProp = RAOut + (RAOut | ~RBound);  in determineLiveOperandBitsAddCarry()
517   APInt RACarry = RProp ^ ~RBound;  in determineLiveOperandBitsAddCarry()
518   APInt ACarry = RACarry.reverseBits();  in determineLiveOperandBitsAddCarry()
521   APInt NeededToMaintainCarryZero;  in determineLiveOperandBitsAddCarry()
522   APInt NeededToMaintainCarryOne;  in determineLiveOperandBitsAddCarry()
532   APInt PossibleSumZero = ~LHS.Zero + ~RHS.Zero + !CarryZero;  in determineLiveOperandBitsAddCarry()
533   APInt PossibleSumOne = LHS.One + RHS.One + CarryOne;  in determineLiveOperandBitsAddCarry()
546   APInt NeededToMaintainCarry = (~PossibleSumZero | NeededToMaintainCarryZero) &  in determineLiveOperandBitsAddCarry()
549   APInt AB = AOut | (ACarry & NeededToMaintainCarry);  in determineLiveOperandBitsAddCarry()
553 APInt DemandedBits::determineLiveOperandBitsAdd(unsigned OperandNo,  in determineLiveOperandBitsAdd()
554                                                 const APInt &AOut,  in determineLiveOperandBitsAdd()
561 APInt DemandedBits::determineLiveOperandBitsSub(unsigned OperandNo,  in determineLiveOperandBitsSub()
562                                                 const APInt &AOut,  in determineLiveOperandBitsSub()