xref: /minix3/external/bsd/llvm/dist/clang/test/CodeGenCXX/pragma-visibility.cpp (revision f4a2713ac843a11c696ec80c0a5e3e5d80b4d338) 
1*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -o - %s | FileCheck %s
2*f4a2713aSLionel Sambuc 
3*f4a2713aSLionel Sambuc #pragma GCC visibility push(hidden)
4*f4a2713aSLionel Sambuc struct x {
5*f4a2713aSLionel Sambuc   static int y;
6*f4a2713aSLionel Sambuc };
7*f4a2713aSLionel Sambuc #pragma GCC visibility pop
8*f4a2713aSLionel Sambuc int x::y = 10;
9*f4a2713aSLionel Sambuc // CHECK: @_ZN1x1yE = hidden global
10*f4a2713aSLionel Sambuc 
11*f4a2713aSLionel Sambuc #pragma GCC visibility push(hidden)
12*f4a2713aSLionel Sambuc struct __attribute((visibility("default"))) x2 {
13*f4a2713aSLionel Sambuc   static int y;
14*f4a2713aSLionel Sambuc };
15*f4a2713aSLionel Sambuc int x2::y = 10;
16*f4a2713aSLionel Sambuc // CHECK: @_ZN2x21yE = global
17*f4a2713aSLionel Sambuc #pragma GCC visibility pop
18*f4a2713aSLionel Sambuc 
19*f4a2713aSLionel Sambuc #pragma GCC visibility push(hidden)
20*f4a2713aSLionel Sambuc template<class T> struct x4 {
21*f4a2713aSLionel Sambuc   static int y;
22*f4a2713aSLionel Sambuc };
23*f4a2713aSLionel Sambuc #pragma GCC visibility pop
24*f4a2713aSLionel Sambuc template<> int x4<int>::y = 10;
25*f4a2713aSLionel Sambuc // CHECK: @_ZN2x4IiE1yE = hidden global i32
26*f4a2713aSLionel Sambuc 
27*f4a2713aSLionel Sambuc #pragma GCC visibility push(hidden)
f()28*f4a2713aSLionel Sambuc template<int x> int f() { return x; }
g()29*f4a2713aSLionel Sambuc extern "C" int g() { return f<3>(); }
30*f4a2713aSLionel Sambuc #pragma GCC visibility pop
31*f4a2713aSLionel Sambuc // CHECK-LABEL: define hidden i32 @g()
32*f4a2713aSLionel Sambuc // CHECK-LABEL: define linkonce_odr hidden i32 @_Z1fILi3EEiv()
33*f4a2713aSLionel Sambuc 
34*f4a2713aSLionel Sambuc #pragma GCC visibility push(hidden)
35*f4a2713aSLionel Sambuc template<class T> struct x5 {
36*f4a2713aSLionel Sambuc   void y();
37*f4a2713aSLionel Sambuc };
38*f4a2713aSLionel Sambuc #pragma GCC visibility pop
y()39*f4a2713aSLionel Sambuc template<> void x5<int>::y() {}
40*f4a2713aSLionel Sambuc // CHECK-LABEL: define hidden void @_ZN2x5IiE1yEv
41*f4a2713aSLionel Sambuc 
42*f4a2713aSLionel Sambuc #pragma GCC visibility push(hidden)
43*f4a2713aSLionel Sambuc namespace n __attribute((visibility("default"))) {
f()44*f4a2713aSLionel Sambuc   void f() {}
45*f4a2713aSLionel Sambuc   // CHECK-LABEL: define void @_ZN1n1fEv
46*f4a2713aSLionel Sambuc }
47*f4a2713aSLionel Sambuc #pragma GCC visibility pop
48*f4a2713aSLionel Sambuc 
49*f4a2713aSLionel Sambuc namespace n __attribute((visibility("default")))  {
50*f4a2713aSLionel Sambuc #pragma GCC visibility push(hidden)
g()51*f4a2713aSLionel Sambuc   void g() {}
52*f4a2713aSLionel Sambuc   // CHECK-LABEL: define hidden void @_ZN1n1gEv
53*f4a2713aSLionel Sambuc #pragma GCC visibility pop
54*f4a2713aSLionel Sambuc }
55*f4a2713aSLionel Sambuc 
56*f4a2713aSLionel Sambuc namespace test2 {
57*f4a2713aSLionel Sambuc #pragma GCC visibility push(default)
58*f4a2713aSLionel Sambuc #pragma GCC visibility push(hidden)
59*f4a2713aSLionel Sambuc   struct foo { // foo is hidden
60*f4a2713aSLionel Sambuc   };
61*f4a2713aSLionel Sambuc #pragma GCC visibility pop
62*f4a2713aSLionel Sambuc   struct foo; // declaration is ok, we ignore the default in the stack
63*f4a2713aSLionel Sambuc   template<typename T>
64*f4a2713aSLionel Sambuc   struct bar { // bar is default
ftest2::bar65*f4a2713aSLionel Sambuc     static void f(){}
66*f4a2713aSLionel Sambuc   };
67*f4a2713aSLionel Sambuc #pragma GCC visibility pop
zed()68*f4a2713aSLionel Sambuc   void zed() {
69*f4a2713aSLionel Sambuc     bar<foo>::f();
70*f4a2713aSLionel Sambuc     bar<int>::f();
71*f4a2713aSLionel Sambuc   }
72*f4a2713aSLionel Sambuc   // CHECK-LABEL: define linkonce_odr hidden void @_ZN5test23barINS_3fooEE1fEv
73*f4a2713aSLionel Sambuc   // CHECK-LABEL: define linkonce_odr void @_ZN5test23barIiE1fEv
74*f4a2713aSLionel Sambuc }
75