- 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) {
+ 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)
+