Added file header comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8675 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bytecode/Reader/ReaderWrappers.cpp b/lib/Bytecode/Reader/ReaderWrappers.cpp
index 218c694..2773d36 100644
--- a/lib/Bytecode/Reader/ReaderWrappers.cpp
+++ b/lib/Bytecode/Reader/ReaderWrappers.cpp
@@ -1,3 +1,10 @@
+//===- ReaderWrappers.cpp - Parse bytecode from file or buffer -----------===//
+//
+// This file implements loading and parsing a bytecode file and parsing a
+// bytecode module from a given buffer.
+//
+//===----------------------------------------------------------------------===//
+
#include "ReaderInternals.h"
#include "Support/StringExtras.h"
#include "Config/fcntl.h"