diff --git a/clang/test/CodeGenCXX/cxx-block-objects.cpp b/clang/test/CodeGenCXX/cxx-block-objects.cpp
new file mode 100644
index 0000000..b989065
--- /dev/null
+++ b/clang/test/CodeGenCXX/cxx-block-objects.cpp
@@ -0,0 +1,33 @@
+// RUN: %clang_cc1 %s -fblocks -triple x86_64-apple-darwin -emit-llvm -o - | FileCheck %s
+// rdar://8594790
+
+extern "C" {
+extern "C" void *_Block_copy(const void *aBlock);
+extern "C" void _Block_release(const void *aBlock);
+}
+
+class A {
+public:
+        int x;
+        A(const A &o);
+        A();
+        virtual ~A();
+        void hello() const;
+};
+
+int
+main()
+{
+        A a;
+        void (^c)(void) = ((__typeof(^{ a.hello(); }))_Block_copy((const void *)(^{ a.hello(); })));
+        c();
+        _Block_release((const void *)(c));
+        return 0;
+}
+
+// CHECK: define internal void @__copy_helper_block_
+// CHECK: call void @_ZN1AC1ERKS_
+
+
+// CHECK:define internal void @__destroy_helper_block_
+// CHECK: call void @_ZN1AD1Ev