APInt KnownZero2, KnownOne2;
unsigned NumElts = DemandedElts.getBitWidth();
- if (DemandedElts == APInt(NumElts, 0))
+ if (!DemandedElts)
return; // No demanded elts, better to assume we don't know anything.
switch (Op.getOpcode()) {
DemandedRHS.setBit((unsigned)M % NumElts);
}
// Known bits are the values that are shared by every demanded element.
- if (DemandedLHS != APInt(NumElts, 0)) {
+ if (!!DemandedLHS) {
SDValue LHS = Op.getOperand(0);
computeKnownBits(LHS, KnownZero2, KnownOne2, DemandedLHS, Depth + 1);
KnownOne &= KnownOne2;
KnownZero &= KnownZero2;
}
- if (DemandedRHS != APInt(NumElts, 0)) {
+ if (!!DemandedRHS) {
SDValue RHS = Op.getOperand(1);
computeKnownBits(RHS, KnownZero2, KnownOne2, DemandedRHS, Depth + 1);
KnownOne &= KnownOne2;