Generate code for llvm.uadd.with.overflow intrinsic. No conversion support yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59786 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index 4bc0128..53bc88d 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -4109,7 +4109,18 @@
return 0;
}
case Intrinsic::uadd_with_overflow: {
- // TODO: Convert to "ISD::UADDO" instruction.
+ // Convert to "ISD::UADDO" instruction.
+ SDValue Op1 = getValue(I.getOperand(1));
+ SDValue Op2 = getValue(I.getOperand(2));
+ MVT Ty = Op1.getValueType();
+
+ MVT ValueVTs[] = { Ty, MVT::i1 };
+ SDValue Ops[] = { Op1, Op2 };
+
+ SDValue Result = DAG.getNode(ISD::UADDO, DAG.getVTList(&ValueVTs[0], 2),
+ &Ops[0], 2);
+
+ setValue(&I, Result);
return 0;
}