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