Lines Matching defs:KnownZero
791 APInt KnownZero, KnownOne;
792 if (!TLI.SimplifyDemandedBits(Op, Demanded, KnownZero, KnownOne, TLO))
4366 APInt KnownZero, KnownOne;
4367 DAG.computeKnownBits(N0.getOperand(0), KnownZero, KnownOne);
4375 APInt UnknownBits = ~KnownZero;
5158 // the value being truncated in Op and which of Op's bits are zero in KnownZero.
5159 // This function computes KnownZero to avoid a duplicated call to
5162 APInt &KnownZero) {
5166 DAG.computeKnownBits(Op, KnownZero, KnownOne);
5187 DAG.computeKnownBits(Op, KnownZero, KnownOne);
5189 if (!(KnownZero | APInt(Op.getValueSizeInBits(), 1)).isAllOnesValue())
5214 APInt KnownZero;
5215 if (!VT.isVector() && isTruncateOf(DAG, N0, Op, KnownZero)) {
5223 if (TruncatedBits == (KnownZero & TruncatedBits)) {
