Cross Reference: /external/llvm/lib/Analysis/ValueTracking.cpp

Lines Matching refs:BitWidth
40   if (unsigned BitWidth = Ty->getScalarSizeInBits())
41     return BitWidth;
56         unsigned BitWidth = KnownZero.getBitWidth();
58         // NLZ can't be BitWidth with no sign bit
59         APInt MaskV = APInt::getHighBitsSet(BitWidth, NLZ+1);
68           KnownZero = APInt::getHighBitsSet(BitWidth, NLZ2);
74   unsigned BitWidth = KnownZero.getBitWidth();
80   APInt LHSKnownZero(BitWidth, 0), LHSKnownOne(BitWidth, 0);
94       APInt Mask = APInt::getLowBitsSet(BitWidth, LHSKnownZeroOut);
100       KnownZero |= APInt::getLowBitsSet(BitWidth,
105     APInt Mask = APInt::getLowBitsSet(BitWidth, RHSKnownZeroOut);
116           KnownZero |= APInt::getSignBit(BitWidth);
119           KnownOne |= APInt::getSignBit(BitWidth);
123           KnownZero |= APInt::getSignBit(BitWidth);
126           KnownOne |= APInt::getSignBit(BitWidth);
136   unsigned BitWidth = KnownZero.getBitWidth();
176                              BitWidth) - BitWidth;
178   TrailZ = std::min(TrailZ, BitWidth);
179   LeadZ = std::min(LeadZ, BitWidth);
180   KnownZero = APInt::getLowBitsSet(BitWidth, TrailZ) |
181               APInt::getHighBitsSet(BitWidth, LeadZ);
189     KnownZero.setBit(BitWidth - 1);
191     KnownOne.setBit(BitWidth - 1);
195   unsigned BitWidth = KnownZero.getBitWidth();
200   unsigned MinLeadingZeros = BitWidth;
211   KnownZero = APInt::getHighBitsSet(BitWidth, MinLeadingZeros);
232   unsigned BitWidth = KnownZero.getBitWidth();
238           TD->getTypeSizeInBits(V->getType()->getScalarType()) == BitWidth) &&
240           V->getType()->getScalarSizeInBits() == BitWidth) &&
241          KnownZero.getBitWidth() == BitWidth &&
242          KnownOne.getBitWidth() == BitWidth &&
243          "V, Mask, KnownOne and KnownZero should have same BitWidth");
255     KnownZero = APInt::getAllOnesValue(BitWidth);
292       KnownZero = APInt::getLowBitsSet(BitWidth,
314         KnownZero = APInt::getLowBitsSet(BitWidth,
390     if (RHSUnknownLeadingOnes != BitWidth)
391       LeadZ = std::min(BitWidth,
392                        LeadZ + BitWidth - RHSUnknownLeadingOnes - 1);
394     KnownZero = APInt::getHighBitsSet(BitWidth, LeadZ);
435     KnownZero = KnownZero.zextOrTrunc(BitWidth);
436     KnownOne = KnownOne.zextOrTrunc(BitWidth);
438     if (BitWidth > SrcBitWidth)
439       KnownZero |= APInt::getHighBitsSet(BitWidth, BitWidth - SrcBitWidth);
461     KnownZero = KnownZero.zext(BitWidth);
462     KnownOne = KnownOne.zext(BitWidth);
467       KnownZero |= APInt::getHighBitsSet(BitWidth, BitWidth - SrcBitWidth);
469       KnownOne |= APInt::getHighBitsSet(BitWidth, BitWidth - SrcBitWidth);
475       uint64_t ShiftAmt = SA->getLimitedValue(BitWidth);
480       KnownZero |= APInt::getLowBitsSet(BitWidth, ShiftAmt); // low bits known 0
488       uint64_t ShiftAmt = SA->getLimitedValue(BitWidth);
496       KnownZero |= APInt::getHighBitsSet(BitWidth, ShiftAmt);
504       uint64_t ShiftAmt = SA->getLimitedValue(BitWidth-1);
512       APInt HighBits(APInt::getHighBitsSet(BitWidth, ShiftAmt));
513       if (KnownZero[BitWidth-ShiftAmt-1])    // New bits are known zero.
515       else if (KnownOne[BitWidth-ShiftAmt-1])  // New bits are known one.
547         if (KnownZero2[BitWidth-1] || ((KnownZero2 & LowBits) == LowBits))
552         if (KnownOne2[BitWidth-1] && ((KnownOne2 & LowBits) != 0))
562       APInt LHSKnownZero(BitWidth, 0), LHSKnownOne(BitWidth, 0);
567         KnownZero.setBit(BitWidth - 1);
593     KnownZero = APInt::getHighBitsSet(BitWidth, Leaders);
604       KnownZero = APInt::getLowBitsSet(BitWidth, CountTrailingZeros_32(Align));
610     APInt LocalKnownZero(BitWidth, 0), LocalKnownOne(BitWidth, 0);
640     KnownZero = APInt::getLowBitsSet(BitWidth, TrailZ);
681           KnownZero = APInt::getLowBitsSet(BitWidth,
700       KnownZero = APInt::getAllOnesValue(BitWidth);
701       KnownOne = APInt::getAllOnesValue(BitWidth);
706         KnownZero2 = APInt(BitWidth, 0);
707         KnownOne2 = APInt(BitWidth, 0);
728         unsigned LowBits = Log2_32(BitWidth)+1;
732         KnownZero = APInt::getHighBitsSet(BitWidth, BitWidth - LowBits);
736         unsigned LowBits = Log2_32(BitWidth)+1;
737         KnownZero = APInt::getHighBitsSet(BitWidth, BitWidth - LowBits);
782   unsigned BitWidth = getBitWidth(V->getType(), TD);
783   if (!BitWidth) {
788   APInt ZeroBits(BitWidth, 0);
789   APInt OneBits(BitWidth, 0);
791   KnownOne = OneBits[BitWidth - 1];
792   KnownZero = ZeroBits[BitWidth - 1];
877   unsigned BitWidth = getBitWidth(V->getType(), TD);
890   if (BitWidth && match(V, m_Shl(m_Value(X), m_Value(Y)))) {
896     APInt KnownZero(BitWidth, 0);
897     APInt KnownOne(BitWidth, 0);
934     if (BitWidth && XKnownNegative && YKnownNegative) {
935       APInt KnownZero(BitWidth, 0);
936       APInt KnownOne(BitWidth, 0);
937       APInt Mask = APInt::getSignedMaxValue(BitWidth);
972   if (!BitWidth) return false;
973   APInt KnownZero(BitWidth, 0);
974   APInt KnownOne(BitWidth, 0);
1871     unsigned BitWidth = getBitWidth(Op->getType(), TD);
1872     if (BitWidth == 0)
1874     APInt KnownZero(BitWidth, 0);
1875     APInt KnownOne(BitWidth, 0);