visibility.cpp revision 1fb0caaa7bef765b85972274e3b434af2572c141 
1// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
2// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -fvisibility hidden -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-HIDDEN
3
4#define HIDDEN __attribute__((visibility("hidden")))
5#define PROTECTED __attribute__((visibility("protected")))
6#define DEFAULT __attribute__((visibility("default")))
7
8// CHECK: @_ZN5Test425VariableInHiddenNamespaceE = hidden global i32 10
9// CHECK: @_ZN5Test71aE = hidden global
10// CHECK: @_ZN5Test71bE = global
11// CHECK: @_ZTVN5Test63fooE = weak_odr hidden constant
12
13namespace Test1 {
14  // CHECK: define hidden void @_ZN5Test11fEv
15  void HIDDEN f() { }
16
17}
18
19namespace Test2 {
20  struct HIDDEN A {
21    void f();
22  };
23
24  // A::f is a member function of a hidden class.
25  // CHECK: define hidden void @_ZN5Test21A1fEv
26  void A::f() { }
27}
28
29namespace Test3 {
30  struct HIDDEN A {
31    struct B {
32      void f();
33    };
34  };
35
36  // B is a nested class where its parent class is hidden.
37  // CHECK: define hidden void @_ZN5Test31A1B1fEv
38  void A::B::f() { }
39}
40
41namespace Test4 HIDDEN {
42  int VariableInHiddenNamespace = 10;
43
44  // Test4::g is in a hidden namespace.
45  // CHECK: define hidden void @_ZN5Test41gEv
46  void g() { }
47
48  struct DEFAULT A {
49    void f();
50  };
51
52  // A has default visibility.
53  // CHECK: define void @_ZN5Test41A1fEv
54  void A::f() { }
55}
56
57namespace Test5 {
58
59  namespace NS HIDDEN {
60    // f is in NS which is hidden.
61    // CHECK: define hidden void @_ZN5Test52NS1fEv()
62    void f() { }
63  }
64
65  namespace NS {
66    // g is in NS, but this NS decl is not hidden.
67    // CHECK: define void @_ZN5Test52NS1gEv
68    void g() { }
69  }
70}
71
72// <rdar://problem/8091955>
73namespace Test6 {
74  struct HIDDEN foo {
75    foo() { }
76    void bonk();
77    virtual void bar() = 0;
78
79    virtual void zonk() {}
80  };
81
82  struct barc : public foo {
83    barc();
84    virtual void bar();
85  };
86
87  barc::barc() {}
88}
89
90namespace Test7 {
91  class HIDDEN A {};
92  A a; // top of file
93
94  template <A&> struct Aref {
95    static void foo() {}
96  };
97
98  class B : public A {};
99  B b; // top of file
100
101  // CHECK: define linkonce_odr hidden void @_ZN5Test74ArefILZNS_1aEEE3fooEv()
102  void test() {
103    Aref<a>::foo();
104  }
105}
106
107namespace Test8 {
108  void foo();
109  void bar() {}
110  // CHECK-HIDDEN: define hidden void @_ZN5Test83barEv()
111  // CHECK-HIDDEN: declare void @_ZN5Test83fooEv()
112
113  void test() {
114    foo();
115    bar();
116  }
117}
118