test/CodeGenCXX/cxx-block-objects.cpp

   1 // RUN: %clang_cc1 %s -fblocks -triple x86_64-apple-darwin -emit-llvm -o - | FileCheck %s
   2 // rdar://8594790
   3
   4 extern "C" {
   5 extern "C" void *_Block_copy(const void *aBlock);
   6 extern "C" void _Block_release(const void *aBlock);
   7 }
   8
   9 class A {
  10 public:
  11         int x;
  12         A(const A &o);
  13         A();
  14         virtual ~A();
  15         void hello() const;
  16 };
  17
  18 int
  19 main()
  20 {
  21         A a;
  22         void (^c)(void) = ((__typeof(^{ a.hello(); }))_Block_copy((const void *)(^{ a.hello(); })));
  23         c();
  24         _Block_release((const void *)(c));
  25         return 0;
  26 }
  27
  28 // CHECK: define internal void @__copy_helper_block_
  29 // CHECK: call void @_ZN1AC1ERKS_
  30
  31
  32 // CHECK:define internal void @__destroy_helper_block_
  33 // CHECK: call void @_ZN1AD1Ev