88     const APInt &AOut, APInt &AB, KnownBits &Known, KnownBits &Known2,  in determineLiveOperandBits()
137           AB = APInt::getHighBitsSet(BitWidth,  in determineLiveOperandBits()
147           AB = APInt::getLowBitsSet(BitWidth,  in determineLiveOperandBits()
153         const APInt *SA;  in determineLiveOperandBits()
179         AB = APInt::getBitsSetFrom(BitWidth, AOut.countTrailingZeros());  in determineLiveOperandBits()
204     AB = APInt::getLowBitsSet(BitWidth, AOut.getActiveBits());  in determineLiveOperandBits()
208       const APInt *ShiftAmtC;  in determineLiveOperandBits()
217           AB |= APInt::getHighBitsSet(BitWidth, ShiftAmt+1);  in determineLiveOperandBits()
219           AB |= APInt::getHighBitsSet(BitWidth, ShiftAmt);  in determineLiveOperandBits()
225       const APInt *ShiftAmtC;  in determineLiveOperandBits()
233           AB |= APInt::getLowBitsSet(BitWidth, ShiftAmt);  in determineLiveOperandBits()
239       const APInt *ShiftAmtC;  in determineLiveOperandBits()
246         if ((AOut & APInt::getHighBitsSet(BitWidth, ShiftAmt))  in determineLiveOperandBits()
253           AB |= APInt::getLowBitsSet(BitWidth, ShiftAmt);  in determineLiveOperandBits()
298     if ((AOut & APInt::getHighBitsSet(AOut.getBitWidth(),  in determineLiveOperandBits()
365           AliveBits[J] = APInt::getAllOnesValue(T->getScalarSizeInBits());  in performAnalysis()
382     APInt AOut;  in performAnalysis()
410         APInt AB = APInt::getAllOnesValue(BitWidth);  in performAnalysis()
412           AB = APInt(BitWidth, 0);  in performAnalysis()
443 APInt DemandedBits::getDemandedBits(Instruction *I) {  in getDemandedBits()
451   return APInt::getAllOnesValue(  in getDemandedBits()
455 APInt DemandedBits::getDemandedBits(Use *U) {  in getDemandedBits()
464     return APInt::getAllOnesValue(BitWidth);  in getDemandedBits()
467     return APInt(BitWidth, 0);  in getDemandedBits()
471   APInt AOut = getDemandedBits(UserI);  in getDemandedBits()
472   APInt AB = APInt::getAllOnesValue(BitWidth);  in getDemandedBits()
515   auto PrintDB = [&](const Instruction *I, const APInt &A, Value *V = nullptr) {  in print()
536 static APInt determineLiveOperandBitsAddCarry(unsigned OperandNo,  in determineLiveOperandBitsAddCarry()
537                                               const APInt &AOut,  in determineLiveOperandBitsAddCarry()
551   APInt Bound = (LHS.Zero & RHS.Zero) | (LHS.One & RHS.One);  in determineLiveOperandBitsAddCarry()
558   APInt RBound = Bound.reverseBits();  in determineLiveOperandBitsAddCarry()
559   APInt RAOut = AOut.reverseBits();  in determineLiveOperandBitsAddCarry()
560   APInt RProp = RAOut + (RAOut | ~RBound);  in determineLiveOperandBitsAddCarry()
561   APInt RACarry = RProp ^ ~RBound;  in determineLiveOperandBitsAddCarry()
562   APInt ACarry = RACarry.reverseBits();  in determineLiveOperandBitsAddCarry()
565   APInt NeededToMaintainCarryZero;  in determineLiveOperandBitsAddCarry()
566   APInt NeededToMaintainCarryOne;  in determineLiveOperandBitsAddCarry()
576   APInt PossibleSumZero = ~LHS.Zero + ~RHS.Zero + !CarryZero;  in determineLiveOperandBitsAddCarry()
577   APInt PossibleSumOne = LHS.One + RHS.One + CarryOne;  in determineLiveOperandBitsAddCarry()
590   APInt NeededToMaintainCarry = (~PossibleSumZero | NeededToMaintainCarryZero) &  in determineLiveOperandBitsAddCarry()
593   APInt AB = AOut | (ACarry & NeededToMaintainCarry);  in determineLiveOperandBitsAddCarry()
597 APInt DemandedBits::determineLiveOperandBitsAdd(unsigned OperandNo,  in determineLiveOperandBitsAdd()
598                                                 const APInt &AOut,  in determineLiveOperandBitsAdd()
605 APInt DemandedBits::determineLiveOperandBitsSub(unsigned OperandNo,  in determineLiveOperandBitsSub()
606                                                 const APInt &AOut,  in determineLiveOperandBitsSub()