mingw-template-dllexport.cpp
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// RUN: %clang_cc1 -emit-llvm -triple i686-mingw32 %s -o - | FileCheck %s
#define JOIN2(x, y) x##y
#define JOIN(x, y) JOIN2(x, y)
#define UNIQ(name) JOIN(name, __LINE__)
#define USEMEMFUNC(class, func) void (class::*UNIQ(use)())() { return &class::func; }
template <class T>
class c {
void f() {}
};
template class __declspec(dllexport) c<int>;
// CHECK: define {{.*}} dllexport {{.*}} @_ZN1cIiE1fEv
extern template class __declspec(dllexport) c<char>;
template class c<char>;
// CHECK: define {{.*}} dllexport {{.*}} @_ZN1cIcE1fEv
extern template class c<double>;
template class __declspec(dllexport) c<double>;
// CHECK-NOT: define {{.*}} dllexport {{.*}} @_ZN1cIdE1fEv
template <class T>
struct outer {
void f();
struct inner {
void f();
};
};
template <class T> void outer<T>::f() {}
template <class T> void outer<T>::inner::f() {}
template class __declspec(dllexport) outer<int>;
// CHECK: define {{.*}} dllexport {{.*}} @_ZN5outerIiE1fEv
// CHECK-NOT: define {{.*}} dllexport {{.*}} @_ZN5outerIiE5inner1fEv
extern template class __declspec(dllimport) outer<char>;
USEMEMFUNC(outer<char>, f)
USEMEMFUNC(outer<char>::inner, f)
// CHECK: declare dllimport {{.*}} @_ZN5outerIcE1fEv
// CHECK: define {{.*}} @_ZN5outerIcE5inner1fEv