xref: /minix3/external/bsd/llvm/dist/clang/test/CodeGenCXX/attr-used.cpp (revision bdb565187c0f1a04513dd488df843317b27f86c8)
1 // RUN: %clang_cc1 -emit-llvm -triple %itanium_abi_triple -o - %s | FileCheck %s
2 
3 // <rdar://problem/8684363>: clang++ not respecting __attribute__((used)) on destructors
4 struct X0 {
5   // CHECK-DAG: define linkonce_odr {{.*}} @_ZN2X0C1Ev
6   __attribute__((used)) X0() {}
7   // CHECK-DAG: define linkonce_odr {{.*}} @_ZN2X0D1Ev
8   __attribute__((used)) ~X0() {}
9 };
10 
11 // PR19743: not emitting __attribute__((used)) inline methods in nested classes.
12 struct X1 {
13   struct Nested {
14     // CHECK-DAG: define linkonce_odr {{.*}} @_ZN2X16Nested1fEv
15     void __attribute__((used)) f() {}
16   };
17 };
18 
19 struct X2 {
20   // We must delay emission of bar() until foo() has had its body parsed,
21   // otherwise foo() would not be emitted.
22   void __attribute__((used)) bar() { foo(); }
23   void foo() { }
24 
25   // CHECK-DAG: define linkonce_odr {{.*}} @_ZN2X23barEv
26   // CHECK-DAG: define linkonce_odr {{.*}} @_ZN2X23fooEv
27 };
28