Index: llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
===================================================================
--- llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1036,8 +1036,8 @@
 /// verification and other common operations when a new node is allocated.
 void SelectionDAG::InsertNode(SDNode *N) {
   AllNodes.push_back(N);
-#ifndef NDEBUG
   N->PersistentId = NextPersistentId++;
+#ifndef NDEBUG
   VerifySDNode(N);
 #endif
   for (DAGUpdateListener *DUL = UpdateListeners; DUL; DUL = DUL->Next)
@@ -1241,9 +1241,7 @@
   AllNodes.remove(AllNodes.begin());
   while (!AllNodes.empty())
     DeallocateNode(&AllNodes.front());
-#ifndef NDEBUG
   NextPersistentId = 0;
-#endif
 }
 
 SDNode *SelectionDAG::FindNodeOrInsertPos(const FoldingSetNodeID &ID,
Index: llvm/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp
===================================================================
--- llvm/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp
+++ llvm/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp
@@ -505,11 +505,7 @@
 
 static Printable PrintNodeId(const SDNode &Node) {
   return Printable([&Node](raw_ostream &OS) {
-#ifndef NDEBUG
     OS << 't' << Node.PersistentId;
-#else
-    OS << (const void*)&Node;
-#endif
   });
 }
 
Index: llvm/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
===================================================================
--- llvm/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
+++ llvm/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
@@ -81,11 +81,7 @@
                                               const SelectionDAG *Graph) {
       std::string R;
       raw_string_ostream OS(R);
-#ifndef NDEBUG
       OS << 't' << Node->PersistentId;
-#else
-      OS << static_cast<const void *>(Node);
-#endif
       return R;
     }