diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriterPass.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriterPass.cpp
index e5e76e2..4757cac 100644
--- a/llvm/lib/Bitcode/Writer/BitcodeWriterPass.cpp
+++ b/llvm/lib/Bitcode/Writer/BitcodeWriterPass.cpp
@@ -1,4 +1,4 @@
-//===--- Bitcode/Writer/BitcodeWriterPass.cpp - Bitcode Writer ------------===//
+//===- BitcodeWriterPass.cpp - Bitcode writing pass -----------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -11,10 +11,18 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/Bitcode/BitcodeWriterPass.h"
 #include "llvm/Bitcode/ReaderWriter.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/PassManager.h"
 #include "llvm/Pass.h"
 using namespace llvm;
 
+PreservedAnalyses BitcodeWriterPass::run(Module *M) {
+  WriteBitcodeToFile(M, OS);
+  return PreservedAnalyses::all();
+}
+
 namespace {
   class WriteBitcodePass : public ModulePass {
     raw_ostream &OS; // raw_ostream to print on
@@ -34,8 +42,6 @@
 
 char WriteBitcodePass::ID = 0;
 
-/// createBitcodeWriterPass - Create and return a pass that writes the module
-/// to the specified ostream.
 ModulePass *llvm::createBitcodeWriterPass(raw_ostream &Str) {
   return new WriteBitcodePass(Str);
 }