Added LLVM copyright notice.

llvm-svn: 9324
diff --git a/llvm/lib/CodeGen/RegAlloc/IGNode.h b/llvm/lib/CodeGen/RegAlloc/IGNode.h
index ddb70746..f8286e2 100644
--- a/llvm/lib/CodeGen/RegAlloc/IGNode.h
+++ b/llvm/lib/CodeGen/RegAlloc/IGNode.h
@@ -1,3 +1,12 @@
+//===-- IGNode.h - Represent a node in an interference graph ----*- C++ -*-===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+
 /* Title:   IGNode.h                      -*- C++ -*-
    Author:  Ruchira Sasanka
    Date:    July 25, 01
diff --git a/llvm/lib/CodeGen/RegAlloc/InterferenceGraph.h b/llvm/lib/CodeGen/RegAlloc/InterferenceGraph.h
index 6074d07..6b8cf3c 100644
--- a/llvm/lib/CodeGen/RegAlloc/InterferenceGraph.h
+++ b/llvm/lib/CodeGen/RegAlloc/InterferenceGraph.h
@@ -1,3 +1,12 @@
+//===-- InterferenceGraph.h - Interference graph for register coloring -*- C++ -*-===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+
 /* Title:   InterferenceGraph.h   -*- C++ -*-
    Author:  Ruchira Sasanka
    Date:    July 20, 01
diff --git a/llvm/lib/CodeGen/RegAlloc/RegClass.h b/llvm/lib/CodeGen/RegAlloc/RegClass.h
index b63ed9d..c861fba 100644
--- a/llvm/lib/CodeGen/RegAlloc/RegClass.h
+++ b/llvm/lib/CodeGen/RegAlloc/RegClass.h
@@ -1,3 +1,12 @@
+//===-- RegClass.h - Machine Independent register coloring ------*- C++ -*-===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+
 /* Title:   RegClass.h   -*- C++ -*-
    Author:  Ruchira Sasanka
    Date:    Aug 20, 01