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1270   // X shift by undef -> undef because it may shift by the bitwidth.
1274   // Shifting by the bitwidth or more is undefined.
1325   unsigned BitWidth = Op1->getType()->getScalarSizeInBits();
1326   APInt KnownZero(BitWidth, 0);
1327   APInt KnownOne(BitWidth, 0);
1329   if (KnownOne.getLimitedValue() >= BitWidth)
1334   unsigned NumValidShiftBits = Log2_32_Ceil(BitWidth);
1335   APInt ShiftAmountMask = APInt::getLowBitsSet(BitWidth, NumValidShiftBits);
1361     unsigned BitWidth = Op0->getType()->getScalarSizeInBits();
1362     APInt Op0KnownZero(BitWidth, 0);
1363     APInt Op0KnownOne(BitWidth, 0);
3123       uint32_t BitWidth = CI->getBitWidth();
3124       APInt LHSKnownZero(BitWidth, 0);
3125       APInt LHSKnownOne(BitWidth, 0);
3403     unsigned BitWidth = Q.DL.getTypeSizeInBits(TrueVal->getType());
3407     APInt MinSignedValue = APInt::getSignBit(BitWidth);
4232 BitWidth = I->getType()->getScalarSizeInBits();
4233     APInt KnownZero(BitWidth, 0);
4234     APInt KnownOne(BitWidth, 0);