diff --git a/lib/AST/CMakeLists.txt b/lib/AST/CMakeLists.txt
index 2f1a6af..3408a1e 100644
--- a/lib/AST/CMakeLists.txt
+++ b/lib/AST/CMakeLists.txt
@@ -11,6 +11,7 @@
   Decl.cpp
   DeclBase.cpp
   DeclCXX.cpp
+  DeclFriend.cpp
   DeclGroup.cpp
   DeclObjC.cpp
   DeclPrinter.cpp
diff --git a/lib/AST/DeclBase.cpp b/lib/AST/DeclBase.cpp
index a949534..1aac7cf 100644
--- a/lib/AST/DeclBase.cpp
+++ b/lib/AST/DeclBase.cpp
@@ -15,6 +15,7 @@
 #include "clang/AST/Decl.h"
 #include "clang/AST/DeclContextInternals.h"
 #include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclFriend.h"
 #include "clang/AST/DeclObjC.h"
 #include "clang/AST/DeclTemplate.h"
 #include "clang/AST/ExternalASTSource.h"
diff --git a/lib/AST/DeclCXX.cpp b/lib/AST/DeclCXX.cpp
index 7f4ad34..72b7f49 100644
--- a/lib/AST/DeclCXX.cpp
+++ b/lib/AST/DeclCXX.cpp
@@ -846,28 +846,6 @@
   return new (C) CXXConversionDecl(RD, L, N, T, TInfo, isInline, isExplicit);
 }
 
-FriendDecl *FriendDecl::Create(ASTContext &C, DeclContext *DC,
-                               SourceLocation L,
-                               FriendUnion Friend,
-                               SourceLocation FriendL) {
-#ifndef NDEBUG
-  if (Friend.is<NamedDecl*>()) {
-    NamedDecl *D = Friend.get<NamedDecl*>();
-    assert(isa<FunctionDecl>(D) ||
-           isa<CXXRecordDecl>(D) ||
-           isa<FunctionTemplateDecl>(D) ||
-           isa<ClassTemplateDecl>(D));
-
-    // As a temporary hack, we permit template instantiation to point
-    // to the original declaration when instantiating members.
-    assert(D->getFriendObjectKind() ||
-           (cast<CXXRecordDecl>(DC)->getTemplateSpecializationKind()));
-  }
-#endif
-
-  return new (C) FriendDecl(DC, L, Friend, FriendL);
-}
-
 LinkageSpecDecl *LinkageSpecDecl::Create(ASTContext &C,
                                          DeclContext *DC,
                                          SourceLocation L,
diff --git a/lib/AST/DeclFriend.cpp b/lib/AST/DeclFriend.cpp
new file mode 100644
index 0000000..8c7cadf
--- /dev/null
+++ b/lib/AST/DeclFriend.cpp
@@ -0,0 +1,39 @@
+//===--- DeclFriend.cpp - C++ Friend Declaration AST Node Implementation --===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the AST classes related to C++ friend
+// declarations.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/AST/DeclFriend.h"
+#include "clang/AST/DeclTemplate.h"
+using namespace clang;
+
+FriendDecl *FriendDecl::Create(ASTContext &C, DeclContext *DC,
+                               SourceLocation L,
+                               FriendUnion Friend,
+                               SourceLocation FriendL) {
+#ifndef NDEBUG
+  if (Friend.is<NamedDecl*>()) {
+    NamedDecl *D = Friend.get<NamedDecl*>();
+    assert(isa<FunctionDecl>(D) ||
+           isa<CXXRecordDecl>(D) ||
+           isa<FunctionTemplateDecl>(D) ||
+           isa<ClassTemplateDecl>(D));
+
+    // As a temporary hack, we permit template instantiation to point
+    // to the original declaration when instantiating members.
+    assert(D->getFriendObjectKind() ||
+           (cast<CXXRecordDecl>(DC)->getTemplateSpecializationKind()));
+  }
+#endif
+
+  return new (C) FriendDecl(DC, L, Friend, FriendL);
+}