1 files changed, 5 insertions, 1 deletions
diff --git a/clang/lib/Frontend/ASTUnit.cpp b/clang/lib/Frontend/ASTUnit.cpp
index 8143263ca2f..38452ed9d44 100644
--- a/clang/lib/Frontend/ASTUnit.cpp
+++ b/clang/lib/Frontend/ASTUnit.cpp
@@ -77,6 +77,9 @@ public:
 
 } // anonymous namespace
 
+const std::string &ASTUnit::getOriginalSourceFileName() {
+  return Reader->getOriginalSourceFile();
+}
 
 ASTUnit *ASTUnit::LoadFromPCHFile(const std::string &Filename,
                                   FileManager &FileMgr,
@@ -101,10 +104,11 @@ ASTUnit *ASTUnit::LoadFromPCHFile(const std::string &Filename,
   std::string Predefines;
   unsigned Counter;
 
-  llvm::OwningPtr<PCHReader> Reader;
+  llvm::OwningPtr<PCHReader>        Reader;
   llvm::OwningPtr<ExternalASTSource> Source;
 
   Reader.reset(new PCHReader(SourceMgr, FileMgr, Diags));
+  AST->Reader.reset(Reader.get());
   Reader->setListener(new PCHInfoCollector(LangInfo, HeaderInfo, TargetTriple,
                                            Predefines, Counter));