SelectionDAG &DAG) {
unsigned NumZeros = 0;
for (unsigned i = 0; i < NumElems; ++i) {
- SDOperand Idx = Mask.getOperand(Low ? i : NumElems-i-1);
+ unsigned Index = Low ? i : NumElems-i-1;
+ SDOperand Idx = Mask.getOperand(Index);
if (Idx.getOpcode() == ISD::UNDEF) {
++NumZeros;
continue;
}
- unsigned Index = cast<ConstantSDNode>(Idx)->getValue();
SDOperand Elt = DAG.getShuffleScalarElt(Op.Val, Index);
if (Elt.Val && isZeroNode(Elt))
++NumZeros;
continue;
}
- unsigned Index = cast<ConstantSDNode>(Idx)->getValue();
- SDOperand Elt = DAG.getShuffleScalarElt(N, Index);
+ SDOperand Elt = DAG.getShuffleScalarElt(N, i);
if (!Elt.Val ||
(Elt.getOpcode() != ISD::UNDEF && !ISD::isNON_EXTLoad(Elt.Val)))
return false;