Add plumbing for the cleanup stack.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64043 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenFunction.cpp b/lib/CodeGen/CodeGenFunction.cpp
index f5a802f..4ba4d60 100644
--- a/lib/CodeGen/CodeGenFunction.cpp
+++ b/lib/CodeGen/CodeGenFunction.cpp
@@ -512,3 +512,12 @@
   }
   return EmitLValue(E).getAddress();
 }
+
+llvm::BasicBlock *CodeGenFunction::CreateCleanupBlock()
+{
+  llvm::BasicBlock *CleanupBlock = createBasicBlock("cleanup");
+  
+  CleanupEntries.push_back(CleanupEntry(CleanupBlock));
+  
+  return CleanupBlock;  
+}