Added copyright header to all C++ source files.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9291 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index 1eaadd2..3c86d2f 100644
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -1,4 +1,12 @@
 //===----------------------------------------------------------------------===//
+// 
+//                     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.
+// 
+//===----------------------------------------------------------------------===//
+// 
 // LLVM Modular Optimizer Utility: opt
 //
 // Optimizations may be specified an arbitrary number of times on the command