Print node ID's in dumps and views if set.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96971 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index ef21a15..e671350 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -5926,6 +5926,9 @@
   if (G)
     if (unsigned Order = G->GetOrdering(this))
       OS << " [ORD=" << Order << ']';
+  
+  if (getNodeId() != -1)
+    OS << " [ID=" << getNodeId() << ']';
 }
 
 void SDNode::print(raw_ostream &OS, const SelectionDAG *G) const {