Implement the "unknown flag" which mainly consists of aligning printing code


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4490 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DataStructure/Printer.cpp b/lib/Analysis/DataStructure/Printer.cpp
index fd6006c..26424be 100644
--- a/lib/Analysis/DataStructure/Printer.cpp
+++ b/lib/Analysis/DataStructure/Printer.cpp
@@ -36,12 +36,13 @@
     OS << "\n";
   }
 
-  if (N->NodeType & DSNode::AllocaNode) OS << "A";
-  if (N->NodeType & DSNode::NewNode   ) OS << "N";
-  if (N->NodeType & DSNode::GlobalNode) OS << "G";
-  if (N->NodeType & DSNode::Incomplete) OS << "I";
-  if (N->NodeType & DSNode::Modified  ) OS << "M";
-  if (N->NodeType & DSNode::Read      ) OS << "R";
+  if (N->NodeType & DSNode::AllocaNode ) OS << "A";
+  if (N->NodeType & DSNode::NewNode    ) OS << "N";
+  if (N->NodeType & DSNode::GlobalNode ) OS << "G";
+  if (N->NodeType & DSNode::UnknownNode) OS << "U";
+  if (N->NodeType & DSNode::Incomplete ) OS << "I";
+  if (N->NodeType & DSNode::Modified   ) OS << "M";
+  if (N->NodeType & DSNode::Read       ) OS << "R";
 
   for (unsigned i = 0, e = N->getGlobals().size(); i != e; ++i) {
     WriteAsOperand(OS, N->getGlobals()[i], false, true, M);