SDNode *HexagonDAGToDAGISel::SelectConstant(SDNode *N) {
SDLoc dl(N);
if (N->getValueType(0) == MVT::i1) {
- SDNode* Result;
+ SDNode* Result = 0;
int32_t Val = cast<ConstantSDNode>(N)->getSExtValue();
- if (Val == -1) {
- // Create the IntReg = 1 node.
- SDNode* IntRegTFR =
- CurDAG->getMachineNode(Hexagon::A2_tfrsi, dl, MVT::i32,
- CurDAG->getTargetConstant(0, MVT::i32));
-
- // Pd = IntReg
- SDNode* Pd = CurDAG->getMachineNode(Hexagon::C2_tfrrp, dl, MVT::i1,
- SDValue(IntRegTFR, 0));
-
- // not(Pd)
- SDNode* NotPd = CurDAG->getMachineNode(Hexagon::C2_not, dl, MVT::i1,
- SDValue(Pd, 0));
-
- // xor(not(Pd))
- Result = CurDAG->getMachineNode(Hexagon::C2_xor, dl, MVT::i1,
- SDValue(Pd, 0), SDValue(NotPd, 0));
-
- // We have just built:
- // Rs = Pd
- // Pd = xor(not(Pd), Pd)
-
+ if (Val == -1)
+ Result = CurDAG->getMachineNode(Hexagon::TFR_PdTrue, dl, MVT::i1);
+ else if (Val == 0)
+ Result = CurDAG->getMachineNode(Hexagon::TFR_PdFalse, dl, MVT::i1);
+ if (Result) {
ReplaceUses(N, Result);
return Result;
}