1 files changed, 9 insertions, 1 deletions
diff --git a/lib/CodeGen/CodeGenModule.h b/lib/CodeGen/CodeGenModule.h
index 99c973cce628..779a3523b7f6 100644
--- a/lib/CodeGen/CodeGenModule.h
+++ b/lib/CodeGen/CodeGenModule.h
@@ -97,16 +97,20 @@ namespace CodeGen {
   };
 
   struct CodeGenTypeCache {
+    /// void
+    const llvm::Type *VoidTy;
+
     /// i8, i32, and i64
     const llvm::IntegerType *Int8Ty, *Int32Ty, *Int64Ty;
 
     /// int
     const llvm::IntegerType *IntTy;
 
-    /// intptr_t and size_t, which we assume are the same
+    /// intptr_t, size_t, and ptrdiff_t, which we assume are the same size.
     union {
       const llvm::IntegerType *IntPtrTy;
       const llvm::IntegerType *SizeTy;
+      const llvm::IntegerType *PtrDiffTy;
     };
 
     /// void* in address space 0
@@ -735,6 +739,10 @@ private:
 
   void EmitDeclMetadata();
 
+  /// EmitCoverageFile - Emit the llvm.gcov metadata used to tell LLVM where
+  /// to emit the .gcno and .gcda files in a way that persists in .bc files.
+  void EmitCoverageFile();
+
   /// MayDeferGeneration - Determine if the given decl can be emitted
   /// lazily; this is only relevant for definitions. The given decl
   /// must be either a function or var decl.