diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h
index f921ca20be0..c101473c8ba 100644
--- a/include/llvm/CodeGen/SelectionDAG.h
+++ b/include/llvm/CodeGen/SelectionDAG.h
@@ -820,8 +820,9 @@ public:
   /// the DAG can optionally implement this interface.  This allows the clients
   /// to handle the various sorts of updates that happen.
   class DAGUpdateListener {
+    virtual void anchor();
   public:
-    virtual ~DAGUpdateListener();
+    virtual ~DAGUpdateListener() {}
 
     /// NodeDeleted - The node N that was deleted and, if E is not null, an
     /// equivalent node E that replaced it.
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 34659bb1a41..e2ae6789304 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -70,7 +70,7 @@ static const fltSemantics *EVTToAPFloatSemantics(EVT VT) {
   }
 }
 
-SelectionDAG::DAGUpdateListener::~DAGUpdateListener() {}
+SelectionDAG::DAGUpdateListener::anchor() {}
 
 //===----------------------------------------------------------------------===//
 //                              ConstantFPSDNode Class