1 // RUN: %clang_cc1 -triple x86_64 %s -fno-use-cxa-atexit -emit-llvm -o - | FileCheck %s
2 
3 // PR7097
4 // RUN: %clang_cc1 -triple x86_64 %s -fno-use-cxa-atexit -mconstructor-aliases -emit-llvm -o - | FileCheck %s
5 
6 // CHECK:      call void @_ZN1AC1Ev([[A:%.*]]* @a)
7 // CHECK-NEXT: call i32 @atexit(void ()* @__dtor_a)
8 // CHECK:      define internal void @__dtor_a() [[NUW:#[0-9]+]]
9 // CHECK:      call void @_ZN1AD1Ev([[A]]* @a)
10 
11 // CHECK:      call void @_ZN1AC1Ev([[A]]* @b)
12 // CHECK-NEXT: call i32 @atexit(void ()* @__dtor_b)
13 // CHECK:      define internal void @__dtor_b() [[NUW]]
14 // CHECK:      call void @_ZN1AD1Ev([[A]]* @b)
15 
16 class A {
17 public:
18   A();
19   ~A();
20 };
21 
22 A a, b;
23 
24 // PR9593
25 // CHECK-LABEL:      define void @_Z4funcv()
26 // CHECK:      call i32 @__cxa_guard_acquire(i64* @_ZGVZ4funcvE2a1)
27 // CHECK:      call void @_ZN1AC1Ev([[A]]* @_ZZ4funcvE2a1)
28 // CHECK-NEXT: call i32 @atexit(void ()* @__dtor__ZZ4funcvE2a1)
29 // CHECK-NEXT: call void @__cxa_guard_release(i64* @_ZGVZ4funcvE2a1)
30 
31 // CHECK:      call i32 @__cxa_guard_acquire(i64* @_ZGVZ4funcvE2a2)
32 // CHECK:      call void @_ZN1AC1Ev([[A]]* @_ZZ4funcvE2a2)
33 // CHECK-NEXT: call i32 @atexit(void ()* @__dtor__ZZ4funcvE2a2)
34 // CHECK-NEXT: call void @__cxa_guard_release(i64* @_ZGVZ4funcvE2a2)
35 
36 // CHECK:      define internal void @__dtor__ZZ4funcvE2a1() [[NUW]]
37 // CHECK:      call void @_ZN1AD1Ev([[A]]* @_ZZ4funcvE2a1)
38 
39 // CHECK:      define internal void @__dtor__ZZ4funcvE2a2() [[NUW]]
40 // CHECK:      call void @_ZN1AD1Ev([[A]]* @_ZZ4funcvE2a2)
41 
42 void func() {
43   static A a1, a2;
44 }
45 
46 // CHECK: attributes [[NUW]] = { nounwind{{.*}} }
47