lib/Analysis/ValueTracking.cpp

1139   unsigned TyBits = TD ? TD->getTypeSizeInBits(V->getType()->getScalarType()) :
1154     Tmp = TyBits - U->getOperand(0)->getType()->getScalarSizeInBits();
1163       if (Tmp > TyBits) Tmp = TyBits;
1173       if (Tmp2 >= TyBits ||      // Bad shift.
1208         APInt KnownZero(TyBits, 0), KnownOne(TyBits, 0);
1213         if ((KnownZero | APInt(TyBits, 1)).isAllOnesValue())
1214           return TyBits;
1233         APInt KnownZero(TyBits, 0), KnownOne(TyBits, 0);
1237         if ((KnownZero | APInt(TyBits, 1)).isAllOnesValue())
1238           return TyBits;
1278   APInt KnownZero(TyBits, 0), KnownOne(TyBits, 0);
1294   Mask <<= Mask.getBitWidth()-TyBits;
1297   return std::max(FirstAnswer, std::min(TyBits, Mask.countLeadingZeros()));