Cross Reference: /external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp

Lines Matching defs:BitWidth
53   unsigned BitWidth = Inst.getType()->getScalarSizeInBits();
54   APInt KnownZero(BitWidth, 0), KnownOne(BitWidth, 0);
55   APInt DemandedMask(APInt::getAllOnesValue(BitWidth));
105   uint32_t BitWidth = DemandedMask.getBitWidth();
109   assert((!TD || TD->getTypeSizeInBits(VTy->getScalarType()) == BitWidth) &&
111           VTy->getScalarSizeInBits() == BitWidth) &&
112          KnownZero.getBitWidth() == BitWidth &&
113          KnownOne.getBitWidth() == BitWidth &&
115          "must have same BitWidth");
140   APInt LHSKnownZero(BitWidth, 0), LHSKnownOne(BitWidth, 0);
141   APInt RHSKnownZero(BitWidth, 0), RHSKnownOne(BitWidth, 0);
214     DemandedMask = APInt::getAllOnesValue(BitWidth);
390     DemandedMask = DemandedMask.trunc(BitWidth);
391     KnownZero = KnownZero.trunc(BitWidth);
392     KnownOne = KnownOne.trunc(BitWidth);
428     DemandedMask = DemandedMask.zext(BitWidth);
429     KnownZero = KnownZero.zext(BitWidth);
430     KnownOne = KnownOne.zext(BitWidth);
433     KnownZero |= APInt::getHighBitsSet(BitWidth, BitWidth - SrcBitWidth);
441                               APInt::getLowBitsSet(BitWidth, SrcBitWidth);
443     APInt NewBits(APInt::getHighBitsSet(BitWidth, BitWidth - SrcBitWidth));
455     InputDemandedBits = InputDemandedBits.zext(BitWidth);
456     KnownZero = KnownZero.zext(BitWidth);
457     KnownOne = KnownOne.zext(BitWidth);
490       APInt InDemandedBits(APInt::getLowBitsSet(BitWidth, BitWidth - NLZ));
539       if (DemandedMask[BitWidth-1] == 0) {
542         APInt DemandedFromOps(APInt::getLowBitsSet(BitWidth, BitWidth-NLZ));
555     if (DemandedMask[BitWidth-1] == 0) {
559       APInt DemandedFromOps(APInt::getLowBitsSet(BitWidth, BitWidth-NLZ));
583       uint64_t ShiftAmt = SA->getLimitedValue(BitWidth-1);
589         DemandedMaskIn |= APInt::getHighBitsSet(BitWidth, ShiftAmt+1);
591         DemandedMaskIn |= APInt::getHighBitsSet(BitWidth, ShiftAmt);
601         KnownZero |= APInt::getLowBitsSet(BitWidth, ShiftAmt);
607       uint64_t ShiftAmt = SA->getLimitedValue(BitWidth-1);
615         DemandedMaskIn |= APInt::getLowBitsSet(BitWidth, ShiftAmt);
625         APInt HighBits(APInt::getHighBitsSet(BitWidth, ShiftAmt));
648       uint32_t ShiftAmt = SA->getLimitedValue(BitWidth-1);
655         DemandedMaskIn.setBit(BitWidth-1);
660         DemandedMaskIn |= APInt::getLowBitsSet(BitWidth, ShiftAmt);
667       APInt HighBits(APInt::getHighBitsSet(BitWidth, ShiftAmt));
672       APInt SignBit(APInt::getSignBit(BitWidth));
678       if (BitWidth <= ShiftAmt || KnownZero[BitWidth-ShiftAmt-1] || 
702         APInt Mask2 = LowBits | APInt::getSignBit(BitWidth);
713         if (LHSKnownZero[BitWidth-1] || ((LHSKnownZero & LowBits) == LowBits))
718         if (LHSKnownOne[BitWidth-1] && ((LHSKnownOne & LowBits) != 0))
728       APInt LHSKnownZero(BitWidth, 0), LHSKnownOne(BitWidth, 0);
736     APInt KnownZero2(BitWidth, 0), KnownOne2(BitWidth, 0);
737     APInt AllOnes = APInt::getAllOnesValue(BitWidth);
747     KnownZero = APInt::getHighBitsSet(BitWidth, Leaders) & DemandedMask;
766         if (BitWidth-NLZ-NTZ == 8) {
768           unsigned InputBit = BitWidth-NTZ-8;