Break RA_DEBUG option into several levels to get better control over
debug output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3724 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/SparcV9/RegAlloc/IGNode.cpp b/lib/Target/SparcV9/RegAlloc/IGNode.cpp
index 795e8b7..c8fca7a 100644
--- a/lib/Target/SparcV9/RegAlloc/IGNode.cpp
+++ b/lib/Target/SparcV9/RegAlloc/IGNode.cpp
@@ -1,3 +1,9 @@
+//===-- IGNode.cpp -------------------------------------------------------===//
+//
+// class IGNode for coloring-based register allocation for LLVM.
+//
+//===----------------------------------------------------------------------===//
+
#include "llvm/CodeGen/IGNode.h"
#include <algorithm>
#include <iostream>