Clang Project

clang_source_code/test/CodeGenCXX/always_destroy.cpp
1// RUN: %clang_cc1 %s -fno-c++-static-destructors -emit-llvm -triple x86_64-apple-macosx10.13.0 -o - | FileCheck %s
2
3struct NonTrivial {
4  ~NonTrivial();
5};
6
7// CHECK-NOT: __cxa_atexit{{.*}}_ZN10NonTrivialD1Ev
8NonTrivial nt1;
9// CHECK-NOT: _tlv_atexit{{.*}}_ZN10NonTrivialD1Ev
10thread_local NonTrivial nt2;
11
12struct NonTrivial2 {
13  ~NonTrivial2();
14};
15
16// CHECK: __cxa_atexit{{.*}}_ZN11NonTrivial2D1Ev
17[[clang::always_destroy]] NonTrivial2 nt21;
18// CHECK: _tlv_atexit{{.*}}_ZN11NonTrivial2D1Ev
19[[clang::always_destroy]] thread_local NonTrivial2 nt22;
20
21void f() {
22  // CHECK: __cxa_atexit{{.*}}_ZN11NonTrivial2D1Ev
23  [[clang::always_destroy]] static NonTrivial2 nt21;
24  // CHECK: _tlv_atexit{{.*}}_ZN11NonTrivial2D1Ev
25  [[clang::always_destroy]] thread_local NonTrivial2 nt22;
26}
27
28// CHECK-NOT: __cxa_atexit{{.*}}_ZN10NonTrivialD1Ev
29[[clang::no_destroy]] NonTrivial nt3;
30// CHECK-NOT: _tlv_atexit{{.*}}_ZN10NonTrivialD1Ev
31[[clang::no_destroy]] thread_local NonTrivial nt4;
32