1 files changed, 7 insertions, 1 deletions
diff --git a/include/llvm/Support/DOTGraphTraits.h b/include/llvm/Support/DOTGraphTraits.h
index 54ced15..796c74a 100644
--- a/include/llvm/Support/DOTGraphTraits.h
+++ b/include/llvm/Support/DOTGraphTraits.h
@@ -36,7 +36,7 @@ protected:
   }
 
 public:
-  DefaultDOTGraphTraits (bool simple=false) : IsSimple (simple) {}
+  explicit DefaultDOTGraphTraits(bool simple=false) : IsSimple (simple) {}
 
   /// getGraphName - Return the label for the graph as a whole.  Printed at the
   /// top of the graph.
@@ -59,6 +59,12 @@ public:
     return false;
   }
 
+  /// isNodeHidden - If the function returns true, the given node is not
+  /// displayed in the graph.
+  static bool isNodeHidden(const void *Node) {
+    return false;
+  }
+
   /// getNodeLabel - Given a node and a pointer to the top level graph, return
   /// the label to print in the node.
   template<typename GraphType>