| // RUN: %clang_cc1 %s -fblocks -triple x86_64-apple-darwin -emit-llvm -o - | FileCheck %s | 
 |  | 
 | 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-LABEL: define linkonce_odr hidden void @__copy_helper_block_ | 
 | // CHECK: call void @_ZN1AC1ERKS_ | 
 |  | 
 |  | 
 | // CHECK-LABEL:define linkonce_odr hidden void @__destroy_helper_block_ | 
 | // CHECK: call void @_ZN1AD1Ev |