clang/test/CodeGenCXX/visibility-hidden-extern-templates.cpp

   1 // RUN: %clang_cc1 -O1 -disable-llvm-passes -triple %itanium_abi_triple -emit-llvm -o - -fvisibility=hidden %s | FileCheck %s
   2
   3 template<typename T>
   4 struct X {
   5   void f();
   6   void g() { }
   7 };
   8
   9 template<typename T> void X<T>::f() { }
  10
  11 extern template struct X<int>;
  12 template struct X<int>;
  13 extern template struct X<char>;
  14
  15 // <rdar://problem/8109763>
  16 void test_X(X<int> xi, X<char> xc) {
  17   // CHECK-LABEL: define weak_odr hidden {{.*}}void @_ZN1XIiE1fEv
  18   xi.f();
  19   // CHECK-LABEL: define weak_odr hidden {{.*}}void @_ZN1XIiE1gEv
  20   xi.g();
  21   // CHECK: declare {{.*}}void @_ZN1XIcE1fEv
  22   xc.f();
  23   // CHECK-LABEL: define available_externally {{.*}}void @_ZN1XIcE1gEv
  24   xc.g();
  25 }
  26