[llvm-mca] Add file header to RetireControlUnit.cpp.

Strictly speaking, this is not necessary for .cpp files. However, other .cpp
files from this same tool have it. This also matches what we do in other tools.

llvm-svn: 332334

diff --git a/llvm/tools/llvm-mca/RetireControlUnit.cpp b/llvm/tools/llvm-mca/RetireControlUnit.cpp
index b759066..4469da3 100644 (file)
--- a/llvm/tools/llvm-mca/RetireControlUnit.cpp
+++ b/llvm/tools/llvm-mca/RetireControlUnit.cpp
@@ -1,3 +1,18 @@
+//===---------------------- RetireControlUnit.cpp ---------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+/// \file
+///
+/// This file implements methods declared by the RetireControlUnit interface.
+///
+//===----------------------------------------------------------------------===//
+
+
 #include "RetireControlUnit.h"
 #include "Dispatch.h"
 #include "llvm/MC/MCSchedule.h"