objective-C arc/mrr: Patch for the new block variable layout meta-data.
It is currently off (so no tests). This is wip.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166892 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGObjCGNU.cpp b/lib/CodeGen/CGObjCGNU.cpp
index 80fa2af..3cf7baa 100644
--- a/lib/CodeGen/CGObjCGNU.cpp
+++ b/lib/CodeGen/CGObjCGNU.cpp
@@ -533,7 +533,10 @@
                                              const CGBlockInfo &blockInfo) {
     return NULLPtr;
   }
-  
+  virtual llvm::Constant *BuildRCBlockLayout(CodeGenModule &CGM,
+                                             const CGBlockInfo &blockInfo) {
+    return NULLPtr;
+  }
   virtual llvm::GlobalVariable *GetClassGlobal(const std::string &Name) {
     return 0;
   }