409     APInt LHSKnownZero(BitWidth, 0), LHSKnownOne(BitWidth, 0);  in ComputeMaskedBits()  local
412     ComputeMaskedBits(I->getOperand(0), Mask2, LHSKnownZero, LHSKnownOne, TD,  in ComputeMaskedBits()
414     assert((LHSKnownZero & LHSKnownOne) == 0 &&  in ComputeMaskedBits()
416     unsigned LHSKnownZeroOut = LHSKnownZero.countTrailingOnes();  in ComputeMaskedBits()
439       KnownZero |= LHSKnownZero & Mask;  in ComputeMaskedBits()
449           if (LHSKnownZero.isNegative() && KnownZero2.isNegative())  in ComputeMaskedBits()
456           if (LHSKnownZero.isNegative() && KnownOne2.isNegative())  in ComputeMaskedBits()
501       APInt LHSKnownZero(BitWidth, 0), LHSKnownOne(BitWidth, 0);  in ComputeMaskedBits()  local
502       ComputeMaskedBits(I->getOperand(0), Mask2, LHSKnownZero, LHSKnownOne, TD,  in ComputeMaskedBits()
505       if (LHSKnownZero.isNegative())  in ComputeMaskedBits()
506         KnownZero |= LHSKnownZero;  in ComputeMaskedBits()