1 // RUN: %clang_cc1 -triple x86_64-windows-msvc -emit-llvm -std=c++14 -fms-extensions -o - %s | FileCheck %s --check-prefix=IMPORT
2 // RUN: %clang_cc1 -triple x86_64-windows-msvc -emit-llvm -std=c++14 -fms-extensions -o - %s -DTEST_EXPORT | FileCheck %s --check-prefix=EXPORT
3
4 #ifndef TEST_EXPORT
5 #define DLLATTR __declspec(dllimport)
6 #else
7 #define DLLATTR __declspec(dllexport)
8 #endif
9
10 // PR37232: When a dllimport attribute is propagated from a derived class to a
11 // base class that happens to be a template specialization, it is only applied
12 // to template *methods*, and not static data members. If a dllexport attribute
13 // is propagated, it still applies to static data members.
14
15 // IMPORT-DAG: @"?sdm@Exporter@@2HB" = available_externally dllimport constant i32 2, align 4
16 // IMPORT-DAG: @"?csdm@?$A@H@@2HB" = linkonce_odr dso_local constant i32 2, comdat, align 4
17 // IMPORT-DAG: @"?sdm@?$A@H@@2HA" = linkonce_odr dso_local global i32 1, comdat, align 4
18 // IMPORT-DAG: @"?sdm@?$B@H@@2HB" = available_externally dllimport constant i32 2, align 4
19 // IMPORT-DAG: @"?sdm@?$C@H@@2HB" = available_externally dllimport constant i32 2, align 4
20
21 // EXPORT-DAG: @"?sdm@Exporter@@2HB" = weak_odr dso_local dllexport constant i32 2, comdat, align 4
22 // EXPORT-DAG: @"?csdm@?$A@H@@2HB" = weak_odr dso_local dllexport constant i32 2, comdat, align 4
23 // EXPORT-DAG: @"?sdm@?$A@H@@2HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
24 // EXPORT-DAG: @"?sdm@?$B@H@@2HB" = weak_odr dso_local dllexport constant i32 2, comdat, align 4
25 // EXPORT-DAG: @"?sdm@?$C@H@@2HB" = weak_odr dso_local dllexport constant i32 2, comdat, align 4
26
27
28 template <typename T> struct A {
29 static constexpr int csdm = 2;
30 static int sdm;
31 };
32 template <typename T> int A<T>::sdm = 1;
33
34 struct DLLATTR Exporter : A<int> {
35 static constexpr int sdm = 2;
36 };
37
38 template <typename T> struct DLLATTR B { static constexpr int sdm = 2; };
39
40 template <typename T> struct DLLATTR C;
41 template <typename T> struct C { static constexpr int sdm = 2; };
42
takeRef(const int & _Args)43 void takeRef(const int &_Args) {}
44
main()45 int main() {
46 takeRef(Exporter::sdm);
47 takeRef(A<int>::csdm);
48 takeRef(A<int>::sdm);
49 takeRef(B<int>::sdm);
50 takeRef(C<int>::sdm);
51
52 return 1;
53 }
54