Add support for promoting SETCC operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76987 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index cc8b510..3ccd915 100644
--- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -1641,11 +1641,16 @@
case ISD::SETUGT:
case ISD::SETUGE:
case ISD::SETULT:
- case ISD::SETULE:
- return DAG.getSetCC(dl, VT, N0.getOperand(0),
- DAG.getConstant(APInt(C1).trunc(InSize),
- N0.getOperand(0).getValueType()),
- Cond);
+ case ISD::SETULE: {
+ MVT newVT = N0.getOperand(0).getValueType();
+ if (DCI.isBeforeLegalizeOps() ||
+ (isOperationLegal(ISD::SETCC, newVT) &&
+ getCondCodeAction(Cond, newVT)==Legal))
+ return DAG.getSetCC(dl, VT, N0.getOperand(0),
+ DAG.getConstant(APInt(C1).trunc(InSize), newVT),
+ Cond);
+ break;
+ }
default:
break; // todo, be more careful with signed comparisons
}