xref: /aosp_15_r20/external/clang/test/CodeGenCXX/pragma-visibility.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315) 
1*67e74705SXin Li // RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -o - %s | FileCheck %s
2*67e74705SXin Li 
3*67e74705SXin Li #pragma GCC visibility push(hidden)
4*67e74705SXin Li struct x {
5*67e74705SXin Li   static int y;
6*67e74705SXin Li };
7*67e74705SXin Li #pragma GCC visibility pop
8*67e74705SXin Li int x::y = 10;
9*67e74705SXin Li // CHECK: @_ZN1x1yE = hidden global
10*67e74705SXin Li 
11*67e74705SXin Li #pragma GCC visibility push(hidden)
12*67e74705SXin Li struct __attribute((visibility("default"))) x2 {
13*67e74705SXin Li   static int y;
14*67e74705SXin Li };
15*67e74705SXin Li int x2::y = 10;
16*67e74705SXin Li // CHECK: @_ZN2x21yE = global
17*67e74705SXin Li #pragma GCC visibility pop
18*67e74705SXin Li 
19*67e74705SXin Li #pragma GCC visibility push(hidden)
20*67e74705SXin Li template<class T> struct x4 {
21*67e74705SXin Li   static int y;
22*67e74705SXin Li };
23*67e74705SXin Li #pragma GCC visibility pop
24*67e74705SXin Li template<> int x4<int>::y = 10;
25*67e74705SXin Li // CHECK: @_ZN2x4IiE1yE = hidden global i32
26*67e74705SXin Li 
27*67e74705SXin Li #pragma GCC visibility push(hidden)
f()28*67e74705SXin Li template<int x> int f() { return x; }
g()29*67e74705SXin Li extern "C" int g() { return f<3>(); }
30*67e74705SXin Li #pragma GCC visibility pop
31*67e74705SXin Li // CHECK-LABEL: define hidden i32 @g()
32*67e74705SXin Li // CHECK-LABEL: define linkonce_odr hidden i32 @_Z1fILi3EEiv()
33*67e74705SXin Li 
34*67e74705SXin Li #pragma GCC visibility push(hidden)
35*67e74705SXin Li template<class T> struct x5 {
36*67e74705SXin Li   void y();
37*67e74705SXin Li };
38*67e74705SXin Li #pragma GCC visibility pop
y()39*67e74705SXin Li template<> void x5<int>::y() {}
40*67e74705SXin Li // CHECK-LABEL: define hidden void @_ZN2x5IiE1yEv
41*67e74705SXin Li 
42*67e74705SXin Li #pragma GCC visibility push(hidden)
43*67e74705SXin Li namespace n __attribute((visibility("default"))) {
f()44*67e74705SXin Li   void f() {}
45*67e74705SXin Li   // CHECK-LABEL: define void @_ZN1n1fEv
46*67e74705SXin Li }
47*67e74705SXin Li #pragma GCC visibility pop
48*67e74705SXin Li 
49*67e74705SXin Li namespace n __attribute((visibility("default")))  {
50*67e74705SXin Li #pragma GCC visibility push(hidden)
g()51*67e74705SXin Li   void g() {}
52*67e74705SXin Li   // CHECK-LABEL: define hidden void @_ZN1n1gEv
53*67e74705SXin Li #pragma GCC visibility pop
54*67e74705SXin Li }
55*67e74705SXin Li 
56*67e74705SXin Li namespace test2 {
57*67e74705SXin Li #pragma GCC visibility push(default)
58*67e74705SXin Li #pragma GCC visibility push(hidden)
59*67e74705SXin Li   struct foo { // foo is hidden
60*67e74705SXin Li   };
61*67e74705SXin Li #pragma GCC visibility pop
62*67e74705SXin Li   struct foo; // declaration is ok, we ignore the default in the stack
63*67e74705SXin Li   template<typename T>
64*67e74705SXin Li   struct bar { // bar is default
ftest2::bar65*67e74705SXin Li     static void f(){}
66*67e74705SXin Li   };
67*67e74705SXin Li #pragma GCC visibility pop
zed()68*67e74705SXin Li   void zed() {
69*67e74705SXin Li     bar<foo>::f();
70*67e74705SXin Li     bar<int>::f();
71*67e74705SXin Li   }
72*67e74705SXin Li   // CHECK-LABEL: define linkonce_odr hidden void @_ZN5test23barINS_3fooEE1fEv
73*67e74705SXin Li   // CHECK-LABEL: define linkonce_odr void @_ZN5test23barIiE1fEv
74*67e74705SXin Li }
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