94       APInt Mask = APInt::getLowBitsSet(BitWidth, LHSKnownZeroOut);  in ComputeMaskedBitsAddSub()  local
95       KnownZero |= KnownZero2 & Mask;  in ComputeMaskedBitsAddSub()
96       KnownOne  |= KnownOne2 & Mask;  in ComputeMaskedBitsAddSub()
105     APInt Mask = APInt::getLowBitsSet(BitWidth, RHSKnownZeroOut);  in ComputeMaskedBitsAddSub()  local
106     KnownZero |= LHSKnownZero & Mask;  in ComputeMaskedBitsAddSub()
107     KnownOne  |= LHSKnownOne & Mask;  in ComputeMaskedBitsAddSub()
1023       APInt Mask = APInt::getSignedMaxValue(BitWidth);  in isKnownNonZero()  local
1027       if ((KnownOne & Mask) != 0)  in isKnownNonZero()
1032       if ((KnownOne & Mask) != 0)  in isKnownNonZero()
1074 bool llvm::MaskedValueIsZero(Value *V, const APInt &Mask,  in MaskedValueIsZero()  argument
1076   APInt KnownZero(Mask.getBitWidth(), 0), KnownOne(Mask.getBitWidth(), 0);  in MaskedValueIsZero()
1079   return (KnownZero & Mask) == Mask;  in MaskedValueIsZero()
1238   APInt Mask;  in ComputeNumSignBits()  local
1242     Mask = KnownZero;  in ComputeNumSignBits()
1244     Mask = KnownOne;  in ComputeNumSignBits()
1252   Mask = ~Mask;  in ComputeNumSignBits()
1253   Mask <<= Mask.getBitWidth()-TyBits;  in ComputeNumSignBits()
1256   return std::max(FirstAnswer, std::min(TyBits, Mask.countLeadingZeros()));  in ComputeNumSignBits()