return CreateCMovFP(DAG, Cond, True, False, N->getDebugLoc());
}
+static SDValue PerformSELECTCombine(SDNode *N, SelectionDAG& DAG,
+ TargetLowering::DAGCombinerInfo &DCI,
+ const MipsSubtarget* Subtarget) {
+ if (DCI.isBeforeLegalizeOps())
+ return SDValue();
+
+ SDValue SetCC = N->getOperand(0);
+
+ if ((SetCC.getOpcode() != ISD::SETCC) ||
+ !SetCC.getOperand(0).getValueType().isInteger())
+ return SDValue();
+
+ SDValue False = N->getOperand(2);
+ EVT FalseTy = False.getValueType();
+
+ if (!FalseTy.isInteger())
+ return SDValue();
+
+ ConstantSDNode *CN = dyn_cast<ConstantSDNode>(False);
+
+ if (!CN || CN->getZExtValue())
+ return SDValue();
+
+ const DebugLoc DL = N->getDebugLoc();
+ ISD::CondCode CC = cast<CondCodeSDNode>(SetCC.getOperand(2))->get();
+ SDValue True = N->getOperand(1);
+
+ SetCC = DAG.getSetCC(DL, SetCC.getValueType(), SetCC.getOperand(0),
+ SetCC.getOperand(1), ISD::getSetCCInverse(CC, true));
+
+ return DAG.getNode(ISD::SELECT, DL, FalseTy, SetCC, False, True);
+}
+
static SDValue PerformANDCombine(SDNode *N, SelectionDAG& DAG,
TargetLowering::DAGCombinerInfo &DCI,
const MipsSubtarget* Subtarget) {
return PerformDivRemCombine(N, DAG, DCI, Subtarget);
case ISD::SETCC:
return PerformSETCCCombine(N, DAG, DCI, Subtarget);
+ case ISD::SELECT:
+ return PerformSELECTCombine(N, DAG, DCI, Subtarget);
case ISD::AND:
return PerformANDCombine(N, DAG, DCI, Subtarget);
case ISD::OR: