}
// fold (shl (mul x, c1), c2) -> (mul x, c1 << c2)
- if (N0.getOpcode() == ISD::MUL && N0.getNode()->hasOneUse()) {
- if (isConstantOrConstantVector(N1, /* No Opaques */ true) &&
- isConstantOrConstantVector(N0.getOperand(1), /* No Opaques */ true)) {
- SDValue Shl = DAG.getNode(ISD::SHL, SDLoc(N1), VT, N0.getOperand(1), N1);
- AddToWorklist(Shl.getNode());
- return DAG.getNode(ISD::MUL, SDLoc(N), VT, N0.getOperand(0), Shl);
- }
+ if (N0.getOpcode() == ISD::MUL && N0.getNode()->hasOneUse() &&
+ isConstantOrConstantVector(N1, /* No Opaques */ true) &&
+ isConstantOrConstantVector(N0.getOperand(1), /* No Opaques */ true)) {
+ SDValue Shl = DAG.getNode(ISD::SHL, SDLoc(N1), VT, N0.getOperand(1), N1);
+ AddToWorklist(Shl.getNode());
+ return DAG.getNode(ISD::MUL, SDLoc(N), VT, N0.getOperand(0), Shl);
}
if (N1C && !N1C->isOpaque())