diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index f8dcfa3..ff7b700 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -1196,6 +1196,12 @@
   /// to by This.
   llvm::Value *GetVTablePtr(llvm::Value *This, llvm::Type *Ty);
 
+
+  /// CanDevirtualizeMemberFunctionCalls - Checks whether virtual calls on given
+  /// expr can be devirtualized.
+  bool CanDevirtualizeMemberFunctionCall(const Expr *Base,
+                                         const CXXMethodDecl *MD);
+
   /// EnterDtorCleanups - Enter the cleanups necessary to complete the
   /// given phase of destruction for a destructor.  The end result
   /// should call destructors on members and base classes in reverse