- SDValue LHS = LegalizeOp(Node->getOperand(0));
- SDValue RHS = LegalizeOp(Node->getOperand(1));
-
- SDValue Sum = DAG.getNode(ISD::ADD, LHS.getValueType(), LHS, RHS);
- MVT OType = SDValue(Node, 1).getValueType();
- SDValue Cmp = DAG.getSetCC(OType, Sum, LHS,
- (Node->getOpcode() == ISD::SADDO) ?
- ISD::SETLT : ISD::SETULT);
-
- MVT ValueVTs[] = { LHS.getValueType(), OType };
- SDValue Ops[] = { Sum, Cmp };
-
- Result = DAG.getMergeValues(DAG.getVTList(&ValueVTs[0], 2), &Ops[0], 2);
- SDNode *RNode = Result.getNode();
- DAG.ReplaceAllUsesOfValueWith(SDValue(Node, 0), SDValue(RNode, 0));
- DAG.ReplaceAllUsesOfValueWith(SDValue(Node, 1), SDValue(RNode, 1));
+ MVT VT = Node->getValueType(0);
+ switch (TLI.getOperationAction(Node->getOpcode(), VT)) {
+ default: assert(0 && "This action not supported for this op yet!");
+ case TargetLowering::Custom:
+ Result = TLI.LowerOperation(Op, DAG);
+ if (Result.getNode()) break;
+ // FALLTHROUGH
+ case TargetLowering::Legal: {
+ SDValue LHS = LegalizeOp(Node->getOperand(0));
+ SDValue RHS = LegalizeOp(Node->getOperand(1));
+
+ SDValue Sum = DAG.getNode(ISD::ADD, LHS.getValueType(), LHS, RHS);
+ MVT OType = Node->getValueType(1);
+ SDValue Cmp = DAG.getSetCC(OType, Sum, LHS,
+ (Node->getOpcode() == ISD::SADDO) ?
+ ISD::SETLT : ISD::SETULT);
+
+ MVT ValueVTs[] = { LHS.getValueType(), OType };
+ SDValue Ops[] = { Sum, Cmp };
+
+ Result = DAG.getMergeValues(DAG.getVTList(&ValueVTs[0], 2), &Ops[0], 2);
+ SDNode *RNode = Result.getNode();
+ DAG.ReplaceAllUsesOfValueWith(SDValue(Node, 0), SDValue(RNode, 0));
+ DAG.ReplaceAllUsesOfValueWith(SDValue(Node, 1), SDValue(RNode, 1));
+ break;
+ }
+ }
+