switch (VT.getSimpleVT().getScalarType().SimpleTy) {
default: llvm_unreachable("Unhandled Expand type in BSWAP!");
case MVT::i16:
- Tmp2 = DAG.getNode(ISD::SHL, dl, VT, Op, DAG.getConstant(8, dl, SHVT));
- Tmp1 = DAG.getNode(ISD::SRL, dl, VT, Op, DAG.getConstant(8, dl, SHVT));
- return DAG.getNode(ISD::OR, dl, VT, Tmp1, Tmp2);
+ // Use a rotate by 8. This can be further expanded if necessary.
+ return DAG.getNode(ISD::ROTL, dl, VT, Op, DAG.getConstant(8, dl, SHVT));
case MVT::i32:
Tmp4 = DAG.getNode(ISD::SHL, dl, VT, Op, DAG.getConstant(24, dl, SHVT));
Tmp3 = DAG.getNode(ISD::SHL, dl, VT, Op, DAG.getConstant(8, dl, SHVT));