add a method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23575 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Support/DOTGraphTraits.h

@@ -52,6 +52,12 @@ struct DefaultDOTGraphTraits {
     return "";
   }
   
+  /// hasNodeAddressLabel - If this method returns true, the address of the node
+  /// is added to the label of the node.
+  static bool hasNodeAddressLabel(const void *Node, const void *Graph) {
+    return false;
+  }
+
   /// If you want to specify custom node attributes, this is the place to do so
   ///
   static std::string getNodeAttributes(const void *Node) { return ""; }

lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp

@@ -34,6 +34,11 @@ namespace llvm {
       return true;
     }
     
+    static bool hasNodeAddressLabel(const SDNode *Node,
+                                    const SelectionDAG *Graph) {
+      return true;
+    }
+
     static std::string getNodeLabel(const SDNode *Node,
                                     const SelectionDAG *Graph);
     static std::string getNodeAttributes(const SDNode *N) {