1 files changed, 7 insertions, 1 deletions
diff --git a/clang/include/clang/Serialization/ModuleManager.h b/clang/include/clang/Serialization/ModuleManager.h
index 70c9d9e5407..fae387cac7e 100644
--- a/clang/include/clang/Serialization/ModuleManager.h
+++ b/clang/include/clang/Serialization/ModuleManager.h
@@ -24,6 +24,7 @@
 namespace clang { 
 
 class GlobalModuleIndex;
+class MemoryBufferCache;
 class ModuleMap;
 class PCHContainerReader;
 
@@ -51,6 +52,9 @@ class ModuleManager {
   /// FileEntry *.
   FileManager &FileMgr;
 
+  /// Cache of PCM files.
+  IntrusiveRefCntPtr<MemoryBufferCache> PCMCache;
+
   /// \brief Knows how to unwrap module containers.
   const PCHContainerReader &PCHContainerRdr;
 
@@ -123,7 +127,7 @@ public:
       ModuleReverseIterator;
   typedef std::pair<uint32_t, StringRef> ModuleOffset;
 
-  explicit ModuleManager(FileManager &FileMgr,
+  explicit ModuleManager(FileManager &FileMgr, MemoryBufferCache &PCMCache,
                          const PCHContainerReader &PCHContainerRdr);
   ~ModuleManager();
 
@@ -290,6 +294,8 @@ public:
 
   /// \brief View the graphviz representation of the module graph.
   void viewGraph();
+
+  MemoryBufferCache &getPCMCache() const { return *PCMCache; }
 };
 
 } } // end namespace clang::serialization