1 // RUN: %clang_cc1 -triple i686-windows-msvc -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O1 -mconstructor-aliases -disable-llvm-optzns -o - %s -w | FileCheck --check-prefix=MSC --check-prefix=M32 %s
2 // RUN: %clang_cc1 -triple x86_64-windows-msvc -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O0 -o - %s -w | FileCheck --check-prefix=MSC --check-prefix=M64 %s
3 // RUN: %clang_cc1 -triple i686-windows-gnu -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O0 -o - %s -w | FileCheck --check-prefix=GNU --check-prefix=G32 %s
4 // RUN: %clang_cc1 -triple x86_64-windows-gnu -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O0 -o - %s -w | FileCheck --check-prefix=GNU --check-prefix=G64 %s
5
6 // Helper structs to make templates more expressive.
7 struct ImplicitInst_Exported {};
8 struct ExplicitDecl_Exported {};
9 struct ExplicitInst_Exported {};
10 struct ExplicitSpec_Exported {};
11 struct ExplicitSpec_Def_Exported {};
12 struct ExplicitSpec_InlineDef_Exported {};
13 struct ExplicitSpec_NotExported {};
14 struct External { int v; };
15
16 #define JOIN2(x, y) x##y
17 #define JOIN(x, y) JOIN2(x, y)
18 #define UNIQ(name) JOIN(name, __LINE__)
19 #define USEVAR(var) int UNIQ(use)() { return var; }
20 #define USE(func) void UNIQ(use)() { func(); }
21 #define USEMEMFUNC(class, func) void (class::*UNIQ(use)())() { return &class::func; }
22 #define INSTVAR(var) template int var;
23 #define INST(func) template void func();
24
25 // The vftable for struct W is comdat largest because we have RTTI.
26 // M32-DAG: $"\01??_7W@@6B@" = comdat largest
27
28
29 //===----------------------------------------------------------------------===//
30 // Globals
31 //===----------------------------------------------------------------------===//
32
33 // Declarations are not exported.
34 // MSC-NOT: @"\01?ExternGlobalDecl@@3HA"
35 // GNU-NOT: @ExternGlobalDecl
36 __declspec(dllexport) extern int ExternGlobalDecl;
37
38 // dllexport implies a definition.
39 // MSC-DAG: @"\01?GlobalDef@@3HA" = dllexport global i32 0, align 4
40 // GNU-DAG: @GlobalDef = dllexport global i32 0, align 4
41 __declspec(dllexport) int GlobalDef;
42
43 // Export definition.
44 // MSC-DAG: @"\01?GlobalInit1@@3HA" = dllexport global i32 1, align 4
45 // GNU-DAG: @GlobalInit1 = dllexport global i32 1, align 4
46 __declspec(dllexport) int GlobalInit1 = 1;
47
48 // MSC-DAG: @"\01?GlobalInit2@@3HA" = dllexport global i32 1, align 4
49 // GNU-DAG: @GlobalInit2 = dllexport global i32 1, align 4
50 int __declspec(dllexport) GlobalInit2 = 1;
51
52 // Declare, then export definition.
53 // MSC-DAG: @"\01?GlobalDeclInit@@3HA" = dllexport global i32 1, align 4
54 // GNU-DAG: @GlobalDeclInit = dllexport global i32 1, align 4
55 __declspec(dllexport) extern int GlobalDeclInit;
56 int GlobalDeclInit = 1;
57
58 // Redeclarations
59 // MSC-DAG: @"\01?GlobalRedecl1@@3HA" = dllexport global i32 0, align 4
60 // GNU-DAG: @GlobalRedecl1 = dllexport global i32 0, align 4
61 __declspec(dllexport) extern int GlobalRedecl1;
62 __declspec(dllexport) int GlobalRedecl1;
63
64 // MSC-DAG: @"\01?GlobalRedecl2@@3HA" = dllexport global i32 0, align 4
65 // GNU-DAG: @GlobalRedecl2 = dllexport global i32 0, align 4
66 __declspec(dllexport) extern int GlobalRedecl2;
67 int GlobalRedecl2;
68
69 // MSC-DAG: @"\01?ExternalGlobal@ns@@3HA" = dllexport global i32 0, align 4
70 // GNU-DAG: @_ZN2ns14ExternalGlobalE = dllexport global i32 0, align 4
71 namespace ns { __declspec(dllexport) int ExternalGlobal; }
72
73 // MSC-DAG: @"\01?ExternalAutoTypeGlobal@@3UExternal@@A" = dllexport global %struct.External zeroinitializer, align 4
74 // GNU-DAG: @ExternalAutoTypeGlobal = dllexport global %struct.External zeroinitializer, align 4
75 __declspec(dllexport) auto ExternalAutoTypeGlobal = External();
76
77 int f();
78 // MSC-DAG: @"\01?x@?1??nonInlineStaticLocalsFunc@@YAHXZ@4HA" = internal {{(unnamed_addr )*}}global i32 0
79 // MSC-DAG: @"\01?$S1@?1??nonInlineStaticLocalsFunc@@YAHXZ@4IA" = internal {{(unnamed_addr )*}}global i32 0
nonInlineStaticLocalsFunc()80 int __declspec(dllexport) nonInlineStaticLocalsFunc() {
81 static int x = f();
82 return x++;
83 };
84
85 // MSC-DAG: @"\01?x@?1??inlineStaticLocalsFunc@@YAHXZ@4HA" = weak_odr dllexport global i32 0, comdat
86 // MSC-DAG: @"\01??_B?1??inlineStaticLocalsFunc@@YAHXZ@51" = weak_odr dllexport global i32 0, comdat
87 // Note: MinGW doesn't seem to export the static local here.
inlineStaticLocalsFunc()88 inline int __declspec(dllexport) inlineStaticLocalsFunc() {
89 static int x = f();
90 return x++;
91 }
92
93
94
95 //===----------------------------------------------------------------------===//
96 // Variable templates
97 //===----------------------------------------------------------------------===//
98
99 // Declarations are not exported.
100
101 // dllexport implies a definition.
102 // MSC-NOT: @"\01??$VarTmplDef@UExplicitInst_Exported@@@@3HA"
103 // GNU-NOT: @_Z10VarTmplDefI21ExplicitInst_ExportedE
104 template<typename T> __declspec(dllexport) int VarTmplDef;
105 INSTVAR(VarTmplDef<ExplicitInst_Exported>)
106
107 // MSC-DAG: @"\01??$VarTmplImplicitDef@UImplicitInst_Exported@@@@3HA" = external dllexport global
108 // GNU-DAG: @_Z18VarTmplImplicitDefI21ImplicitInst_ExportedE = external dllexport global
109 template<typename T> __declspec(dllexport) int VarTmplImplicitDef;
110 USEVAR(VarTmplImplicitDef<ImplicitInst_Exported>)
111
112 // Export definition.
113 // MSC-DAG: @"\01??$VarTmplInit1@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, comdat, align 4
114 // GNU-DAG: @_Z12VarTmplInit1I21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, comdat, align 4
115 template<typename T> __declspec(dllexport) int VarTmplInit1 = 1;
116 INSTVAR(VarTmplInit1<ExplicitInst_Exported>)
117
118 // MSC-DAG: @"\01??$VarTmplInit2@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, comdat, align 4
119 // GNU-DAG: @_Z12VarTmplInit2I21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, comdat, align 4
120 template<typename T> int __declspec(dllexport) VarTmplInit2 = 1;
121 INSTVAR(VarTmplInit2<ExplicitInst_Exported>)
122
123 // Declare, then export definition.
124 // MSC-DAG: @"\01??$VarTmplDeclInit@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, comdat, align 4
125 // GNU-DAG: @_Z15VarTmplDeclInitI21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, comdat, align 4
126 template<typename T> __declspec(dllexport) extern int VarTmplDeclInit;
127 template<typename T> int VarTmplDeclInit = 1;
128 INSTVAR(VarTmplDeclInit<ExplicitInst_Exported>)
129
130 // Redeclarations
131 // MSC-DAG: @"\01??$VarTmplRedecl1@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, comdat, align 4
132 // GNU-DAG: @_Z14VarTmplRedecl1I21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, comdat, align 4
133 template<typename T> __declspec(dllexport) extern int VarTmplRedecl1;
134 template<typename T> __declspec(dllexport) int VarTmplRedecl1 = 1;
135 INSTVAR(VarTmplRedecl1<ExplicitInst_Exported>)
136
137 // MSC-DAG: @"\01??$VarTmplRedecl2@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, comdat, align 4
138 // GNU-DAG: @_Z14VarTmplRedecl2I21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, comdat, align 4
139 template<typename T> __declspec(dllexport) extern int VarTmplRedecl2;
140 template<typename T> int VarTmplRedecl2 = 1;
141 INSTVAR(VarTmplRedecl2<ExplicitInst_Exported>)
142
143 // MSC-DAG: @"\01??$ExternalVarTmpl@UExplicitInst_Exported@@@ns@@3HA" = weak_odr dllexport global i32 1, comdat, align 4
144 // GNU-DAG: @_ZN2ns15ExternalVarTmplI21ExplicitInst_ExportedEE = weak_odr dllexport global i32 1, comdat, align 4
145 namespace ns { template<typename T> __declspec(dllexport) int ExternalVarTmpl = 1; }
146 INSTVAR(ns::ExternalVarTmpl<ExplicitInst_Exported>)
147
148 // MSC-DAG: @"\01??$ExternalAutoTypeVarTmpl@UExplicitInst_Exported@@@@3UExternal@@A" = weak_odr dllexport global %struct.External zeroinitializer, comdat, align 4
149 // GNU-DAG: @_Z23ExternalAutoTypeVarTmplI21ExplicitInst_ExportedE = weak_odr dllexport global %struct.External zeroinitializer, comdat, align 4
150 template<typename T> __declspec(dllexport) auto ExternalAutoTypeVarTmpl = External();
151 template External ExternalAutoTypeVarTmpl<ExplicitInst_Exported>;
152
153
154 template<typename T> int VarTmpl = 1;
155 template<typename T> __declspec(dllexport) int ExportedVarTmpl = 1;
156
157 // Export implicit instantiation of an exported variable template.
158 // MSC-DAG: @"\01??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, comdat, align 4
159 // GNU-DAG: @_Z15ExportedVarTmplI21ImplicitInst_ExportedE = weak_odr dllexport global i32 1, comdat, align 4
160 USEVAR(ExportedVarTmpl<ImplicitInst_Exported>)
161
162 // Export explicit instantiation declaration of an exported variable template.
163 // MSC-DAG: @"\01??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, comdat, align 4
164 // GNU-DAG: @_Z15ExportedVarTmplI21ExplicitDecl_ExportedE = weak_odr dllexport global i32 1, comdat, align 4
165 extern template int ExportedVarTmpl<ExplicitDecl_Exported>;
166 template int ExportedVarTmpl<ExplicitDecl_Exported>;
167
168 // Export explicit instantiation definition of an exported variable template.
169 // MSC-DAG: @"\01??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, comdat, align 4
170 // GNU-DAG: @_Z15ExportedVarTmplI21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, comdat, align 4
171 template __declspec(dllexport) int ExportedVarTmpl<ExplicitInst_Exported>;
172
173 // Export specialization of an exported variable template.
174 // MSC-DAG: @"\01??$ExportedVarTmpl@UExplicitSpec_Exported@@@@3HA" = dllexport global i32 0, align 4
175 // GNU-DAG: @_Z15ExportedVarTmplI21ExplicitSpec_ExportedE = dllexport global i32 0, align 4
176 template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Exported>;
177
178 // MSC-DAG: @"\01??$ExportedVarTmpl@UExplicitSpec_Def_Exported@@@@3HA" = dllexport global i32 1, align 4
179 // GNU-DAG: @_Z15ExportedVarTmplI25ExplicitSpec_Def_ExportedE = dllexport global i32 1, align 4
180 template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Def_Exported> = 1;
181
182 // Not exporting specialization of an exported variable template without
183 // explicit dllexport.
184 // MSC-DAG: @"\01??$ExportedVarTmpl@UExplicitSpec_NotExported@@@@3HA" = global i32 0, align 4
185 // GNU-DAG: @_Z15ExportedVarTmplI24ExplicitSpec_NotExportedE = global i32 0, align 4
186 template<> int ExportedVarTmpl<ExplicitSpec_NotExported>;
187
188
189 // Export explicit instantiation declaration of a non-exported variable template.
190 // MSC-DAG: @"\01??$VarTmpl@UExplicitDecl_Exported@@@@3HA" = weak_odr dllexport global i32 1, comdat, align 4
191 // GNU-DAG: @_Z7VarTmplI21ExplicitDecl_ExportedE = weak_odr dllexport global i32 1, comdat, align 4
192 extern template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>;
193 template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>;
194
195 // Export explicit instantiation definition of a non-exported variable template.
196 // MSC-DAG: @"\01??$VarTmpl@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, comdat, align 4
197 // GNU-DAG: @_Z7VarTmplI21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, comdat, align 4
198 template __declspec(dllexport) int VarTmpl<ExplicitInst_Exported>;
199
200 // Export specialization of a non-exported variable template.
201 // MSC-DAG: @"\01??$VarTmpl@UExplicitSpec_Exported@@@@3HA" = dllexport global i32 0, align 4
202 // GNU-DAG: @_Z7VarTmplI21ExplicitSpec_ExportedE = dllexport global i32 0, align 4
203 template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Exported>;
204
205 // MSC-DAG: @"\01??$VarTmpl@UExplicitSpec_Def_Exported@@@@3HA" = dllexport global i32 1, align 4
206 // GNU-DAG: @_Z7VarTmplI25ExplicitSpec_Def_ExportedE = dllexport global i32 1, align 4
207 template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Def_Exported> = 1;
208
209
210
211 //===----------------------------------------------------------------------===//
212 // Functions
213 //===----------------------------------------------------------------------===//
214
215 // Declarations are not exported.
216
217 // Export function definition.
218 // MSC-DAG: define dllexport void @"\01?def@@YAXXZ"()
219 // GNU-DAG: define dllexport void @_Z3defv()
def()220 __declspec(dllexport) void def() {}
221
222 // extern "C"
223 // MSC-DAG: define dllexport void @externC()
224 // GNU-DAG: define dllexport void @externC()
externC()225 extern "C" __declspec(dllexport) void externC() {}
226
227 // Export inline function.
228 // MSC-DAG: define weak_odr dllexport void @"\01?inlineFunc@@YAXXZ"()
229 // GNU-DAG: define weak_odr dllexport void @_Z10inlineFuncv()
inlineFunc()230 __declspec(dllexport) inline void inlineFunc() {}
231
232 // MSC-DAG: define weak_odr dllexport void @"\01?inlineDecl@@YAXXZ"()
233 // GNU-DAG: define weak_odr dllexport void @_Z10inlineDeclv()
234 __declspec(dllexport) inline void inlineDecl();
inlineDecl()235 void inlineDecl() {}
236
237 // MSC-DAG: define weak_odr dllexport void @"\01?inlineDef@@YAXXZ"()
238 // GNU-DAG: define weak_odr dllexport void @_Z9inlineDefv()
239 __declspec(dllexport) void inlineDef();
inlineDef()240 inline void inlineDef() {}
241
242 // Redeclarations
243 // MSC-DAG: define dllexport void @"\01?redecl1@@YAXXZ"()
244 // GNU-DAG: define dllexport void @_Z7redecl1v()
245 __declspec(dllexport) void redecl1();
redecl1()246 __declspec(dllexport) void redecl1() {}
247
248 // MSC-DAG: define dllexport void @"\01?redecl2@@YAXXZ"()
249 // GNU-DAG: define dllexport void @_Z7redecl2v()
250 __declspec(dllexport) void redecl2();
redecl2()251 void redecl2() {}
252
253 // Friend functions
254 // MSC-DAG: define dllexport void @"\01?friend1@@YAXXZ"()
255 // GNU-DAG: define dllexport void @_Z7friend1v()
256 // MSC-DAG: define dllexport void @"\01?friend2@@YAXXZ"()
257 // GNU-DAG: define dllexport void @_Z7friend2v()
258 struct FuncFriend {
259 friend __declspec(dllexport) void friend1();
260 friend __declspec(dllexport) void friend2();
261 };
friend1()262 __declspec(dllexport) void friend1() {}
friend2()263 void friend2() {}
264
265 // Implicit declarations can be redeclared with dllexport.
266 // MSC-DAG: define dllexport noalias i8* @"\01??2@{{YAPAXI|YAPEAX_K}}@Z"(
267 // GNU-DAG: define dllexport noalias i8* @_Znw{{[yj]}}(
268 void* alloc(__SIZE_TYPE__ n);
operator new(__SIZE_TYPE__ n)269 __declspec(dllexport) void* operator new(__SIZE_TYPE__ n) { return alloc(n); }
270
271 // MSC-DAG: define dllexport void @"\01?externalFunc@ns@@YAXXZ"()
272 // GNU-DAG: define dllexport void @_ZN2ns12externalFuncEv()
externalFunc()273 namespace ns { __declspec(dllexport) void externalFunc() {} }
274
275
276
277 //===----------------------------------------------------------------------===//
278 // Function templates
279 //===----------------------------------------------------------------------===//
280
281 // Export function template definition.
282 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplDef@UExplicitInst_Exported@@@@YAXXZ"()
283 // GNU-DAG: define weak_odr dllexport void @_Z11funcTmplDefI21ExplicitInst_ExportedEvv()
funcTmplDef()284 template<typename T> __declspec(dllexport) void funcTmplDef() {}
INST(funcTmplDef<ExplicitInst_Exported>)285 INST(funcTmplDef<ExplicitInst_Exported>)
286
287 // Export inline function template.
288 // MSC-DAG: define weak_odr dllexport void @"\01??$inlineFuncTmpl1@UExplicitInst_Exported@@@@YAXXZ"()
289 // GNU-DAG: define weak_odr dllexport void @_Z15inlineFuncTmpl1I21ExplicitInst_ExportedEvv()
290 template<typename T> __declspec(dllexport) inline void inlineFuncTmpl1() {}
INST(inlineFuncTmpl1<ExplicitInst_Exported>)291 INST(inlineFuncTmpl1<ExplicitInst_Exported>)
292
293 // MSC-DAG: define weak_odr dllexport void @"\01??$inlineFuncTmpl2@UExplicitInst_Exported@@@@YAXXZ"()
294 // GNU-DAG: define weak_odr dllexport void @_Z15inlineFuncTmpl2I21ExplicitInst_ExportedEvv()
295 template<typename T> inline void __attribute__((dllexport)) inlineFuncTmpl2() {}
296 INST(inlineFuncTmpl2<ExplicitInst_Exported>)
297
298 // MSC-DAG: define weak_odr dllexport void @"\01??$inlineFuncTmplDecl@UExplicitInst_Exported@@@@YAXXZ"()
299 // GNU-DAG: define weak_odr dllexport void @_Z18inlineFuncTmplDeclI21ExplicitInst_ExportedEvv()
300 template<typename T> __declspec(dllexport) inline void inlineFuncTmplDecl();
inlineFuncTmplDecl()301 template<typename T> void inlineFuncTmplDecl() {}
302 INST(inlineFuncTmplDecl<ExplicitInst_Exported>)
303
304 // MSC-DAG: define weak_odr dllexport void @"\01??$inlineFuncTmplDef@UExplicitInst_Exported@@@@YAXXZ"()
305 // GNU-DAG: define weak_odr dllexport void @_Z17inlineFuncTmplDefI21ExplicitInst_ExportedEvv()
306 template<typename T> __declspec(dllexport) void inlineFuncTmplDef();
inlineFuncTmplDef()307 template<typename T> inline void inlineFuncTmplDef() {}
308 INST(inlineFuncTmplDef<ExplicitInst_Exported>)
309
310
311 // Redeclarations
312 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplRedecl1@UExplicitInst_Exported@@@@YAXXZ"()
313 // GNU-DAG: define weak_odr dllexport void @_Z15funcTmplRedecl1I21ExplicitInst_ExportedEvv()
314 template<typename T> __declspec(dllexport) void funcTmplRedecl1();
funcTmplRedecl1()315 template<typename T> __declspec(dllexport) void funcTmplRedecl1() {}
316 INST(funcTmplRedecl1<ExplicitInst_Exported>)
317
318 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplRedecl2@UExplicitInst_Exported@@@@YAXXZ"()
319 // GNU-DAG: define weak_odr dllexport void @_Z15funcTmplRedecl2I21ExplicitInst_ExportedEvv()
320 template<typename T> __declspec(dllexport) void funcTmplRedecl2();
funcTmplRedecl2()321 template<typename T> void funcTmplRedecl2() {}
322 INST(funcTmplRedecl2<ExplicitInst_Exported>)
323
324 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplRedecl3@UExplicitInst_Exported@@@@YAXXZ"()
325 // GNU-DAG: define weak_odr dllexport void @_Z15funcTmplRedecl3I21ExplicitInst_ExportedEvv()
326 template<typename T> __declspec(dllexport) void funcTmplRedecl3();
funcTmplRedecl3()327 template<typename T> void funcTmplRedecl3() {}
328 INST(funcTmplRedecl3<ExplicitInst_Exported>)
329
330
331 // Function template friends
332 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplFriend1@UExplicitInst_Exported@@@@YAXXZ"()
333 // GNU-DAG: define weak_odr dllexport void @_Z15funcTmplFriend1I21ExplicitInst_ExportedEvv()
334 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplFriend2@UExplicitInst_Exported@@@@YAXXZ"()
335 // GNU-DAG: define weak_odr dllexport void @_Z15funcTmplFriend2I21ExplicitInst_ExportedEvv()
336 struct FuncTmplFriend {
337 template<typename T> friend __declspec(dllexport) void funcTmplFriend1();
338 template<typename T> friend __declspec(dllexport) void funcTmplFriend2();
339 };
funcTmplFriend1()340 template<typename T> __declspec(dllexport) void funcTmplFriend1() {}
funcTmplFriend2()341 template<typename T> void funcTmplFriend2() {}
342 INST(funcTmplFriend1<ExplicitInst_Exported>)
343 INST(funcTmplFriend2<ExplicitInst_Exported>)
344
345 // MSC-DAG: define weak_odr dllexport void @"\01??$externalFuncTmpl@UExplicitInst_Exported@@@ns@@YAXXZ"()
346 // GNU-DAG: define weak_odr dllexport void @_ZN2ns16externalFuncTmplI21ExplicitInst_ExportedEEvv()
externalFuncTmpl()347 namespace ns { template<typename T> __declspec(dllexport) void externalFuncTmpl() {} }
INST(ns::externalFuncTmpl<ExplicitInst_Exported>)348 INST(ns::externalFuncTmpl<ExplicitInst_Exported>)
349
350
351 template<typename T> void funcTmpl() {}
exportedFuncTmpl()352 template<typename T> __declspec(dllexport) void exportedFuncTmpl() {}
353
354 // Export implicit instantiation of an exported function template.
355 // MSC-DAG: define weak_odr dllexport void @"\01??$exportedFuncTmpl@UImplicitInst_Exported@@@@YAXXZ"()
356 // GNU-DAG: define weak_odr dllexport void @_Z16exportedFuncTmplI21ImplicitInst_ExportedEvv()
357 USE(exportedFuncTmpl<ImplicitInst_Exported>)
358
359 // Export explicit instantiation declaration of an exported function template.
360 // MSC-DAG: define weak_odr dllexport void @"\01??$exportedFuncTmpl@UExplicitDecl_Exported@@@@YAXXZ"()
361 // GNU-DAG: define weak_odr dllexport void @_Z16exportedFuncTmplI21ExplicitDecl_ExportedEvv()
362 extern template void exportedFuncTmpl<ExplicitDecl_Exported>();
363 template void exportedFuncTmpl<ExplicitDecl_Exported>();
364
365 // Export explicit instantiation definition of an exported function template.
366 // MSC-DAG: define weak_odr dllexport void @"\01??$exportedFuncTmpl@UExplicitInst_Exported@@@@YAXXZ"()
367 // GNU-DAG: define weak_odr dllexport void @_Z16exportedFuncTmplI21ExplicitInst_ExportedEvv()
368 template void exportedFuncTmpl<ExplicitInst_Exported>();
369
370 // Export specialization of an exported function template.
371 // MSC-DAG: define dllexport void @"\01??$exportedFuncTmpl@UExplicitSpec_Def_Exported@@@@YAXXZ"()
372 // GNU-DAG: define dllexport void @_Z16exportedFuncTmplI25ExplicitSpec_Def_ExportedEvv()
exportedFuncTmpl()373 template<> __declspec(dllexport) void exportedFuncTmpl<ExplicitSpec_Def_Exported>() {}
374
375 // MSC-DAG: define weak_odr dllexport void @"\01??$exportedFuncTmpl@UExplicitSpec_InlineDef_Exported@@@@YAXXZ"()
376 // GNU-DAG: define weak_odr dllexport void @_Z16exportedFuncTmplI31ExplicitSpec_InlineDef_ExportedEvv()
exportedFuncTmpl()377 template<> __declspec(dllexport) inline void exportedFuncTmpl<ExplicitSpec_InlineDef_Exported>() {}
378
379 // Not exporting specialization of an exported function template without
380 // explicit dllexport.
381 // MSC-DAG: define void @"\01??$exportedFuncTmpl@UExplicitSpec_NotExported@@@@YAXXZ"()
382 // GNU-DAG: define void @_Z16exportedFuncTmplI24ExplicitSpec_NotExportedEvv()
exportedFuncTmpl()383 template<> void exportedFuncTmpl<ExplicitSpec_NotExported>() {}
384
385
386 // Export explicit instantiation declaration of a non-exported function template.
387 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmpl@UExplicitDecl_Exported@@@@YAXXZ"()
388 // GNU-DAG: define weak_odr dllexport void @_Z8funcTmplI21ExplicitDecl_ExportedEvv()
389 extern template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>();
390 template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>();
391
392 // Export explicit instantiation definition of a non-exported function template.
393 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmpl@UExplicitInst_Exported@@@@YAXXZ"()
394 // GNU-DAG: define weak_odr dllexport void @_Z8funcTmplI21ExplicitInst_ExportedEvv()
395 template __declspec(dllexport) void funcTmpl<ExplicitInst_Exported>();
396
397 // Export specialization of a non-exported function template.
398 // MSC-DAG: define dllexport void @"\01??$funcTmpl@UExplicitSpec_Def_Exported@@@@YAXXZ"()
399 // GNU-DAG: define dllexport void @_Z8funcTmplI25ExplicitSpec_Def_ExportedEvv()
funcTmpl()400 template<> __declspec(dllexport) void funcTmpl<ExplicitSpec_Def_Exported>() {}
401
402 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmpl@UExplicitSpec_InlineDef_Exported@@@@YAXXZ"()
403 // GNU-DAG: define weak_odr dllexport void @_Z8funcTmplI31ExplicitSpec_InlineDef_ExportedEvv()
funcTmpl()404 template<> __declspec(dllexport) inline void funcTmpl<ExplicitSpec_InlineDef_Exported>() {}
405
406
407
408 //===----------------------------------------------------------------------===//
409 // Precedence
410 //===----------------------------------------------------------------------===//
411
412 // dllexport takes precedence over the dllimport if both are specified.
413 // MSC-DAG: @"\01?PrecedenceGlobal1A@@3HA" = dllexport global i32 0, align 4
414 // MSC-DAG: @"\01?PrecedenceGlobal1B@@3HA" = dllexport global i32 0, align 4
415 // GNU-DAG: @PrecedenceGlobal1A = dllexport global i32 0, align 4
416 // GNU-DAG: @PrecedenceGlobal1B = dllexport global i32 0, align 4
417 __attribute__((dllimport, dllexport)) int PrecedenceGlobal1A; // dllimport ignored
418 __declspec(dllimport) __declspec(dllexport) int PrecedenceGlobal1B; // dllimport ignored
419
420 // MSC-DAG: @"\01?PrecedenceGlobal2A@@3HA" = dllexport global i32 0, align 4
421 // MSC-DAG: @"\01?PrecedenceGlobal2B@@3HA" = dllexport global i32 0, align 4
422 // GNU-DAG: @PrecedenceGlobal2A = dllexport global i32 0, align 4
423 // GNU-DAG: @PrecedenceGlobal2B = dllexport global i32 0, align 4
424 __attribute__((dllexport, dllimport)) int PrecedenceGlobal2A; // dllimport ignored
425 __declspec(dllexport) __declspec(dllimport) int PrecedenceGlobal2B; // dllimport ignored
426
427 // MSC-DAG: @"\01?PrecedenceGlobalRedecl1@@3HA" = dllexport global i32 0, align 4
428 // GNU-DAG: @PrecedenceGlobalRedecl1 = dllexport global i32 0, align 4
429 __declspec(dllexport) extern int PrecedenceGlobalRedecl1;
430 __declspec(dllimport) int PrecedenceGlobalRedecl1 = 0;
431
432 // MSC-DAG: @"\01?PrecedenceGlobalRedecl2@@3HA" = dllexport global i32 0, align 4
433 // GNU-DAG: @PrecedenceGlobalRedecl2 = dllexport global i32 0, align 4
434 __declspec(dllimport) extern int PrecedenceGlobalRedecl2;
435 __declspec(dllexport) int PrecedenceGlobalRedecl2;
436
437 // MSC-DAG: @"\01?PrecedenceGlobalMixed1@@3HA" = dllexport global i32 0, align 4
438 // GNU-DAG: @PrecedenceGlobalMixed1 = dllexport global i32 0, align 4
439 __attribute__((dllexport)) extern int PrecedenceGlobalMixed1;
440 __declspec(dllimport) int PrecedenceGlobalMixed1 = 0;
441
442 // MSC-DAG: @"\01?PrecedenceGlobalMixed2@@3HA" = dllexport global i32 0, align 4
443 // GNU-DAG: @PrecedenceGlobalMixed2 = dllexport global i32 0, align 4
444 __attribute__((dllimport)) extern int PrecedenceGlobalMixed2;
445 __declspec(dllexport) int PrecedenceGlobalMixed2;
446
447 // MSC-DAG: define dllexport void @"\01?precedence1A@@YAXXZ"
448 // MSC-DAG: define dllexport void @"\01?precedence1B@@YAXXZ"
449 // GNU-DAG: define dllexport void @_Z12precedence1Av()
450 // GNU-DAG: define dllexport void @_Z12precedence1Bv()
precedence1A()451 void __attribute__((dllimport, dllexport)) precedence1A() {}
precedence1B()452 void __declspec(dllimport) __declspec(dllexport) precedence1B() {}
453
454 // MSC-DAG: define dllexport void @"\01?precedence2A@@YAXXZ"
455 // MSC-DAG: define dllexport void @"\01?precedence2B@@YAXXZ"
456 // GNU-DAG: define dllexport void @_Z12precedence2Av()
457 // GNU-DAG: define dllexport void @_Z12precedence2Bv()
precedence2A()458 void __attribute__((dllexport, dllimport)) precedence2A() {}
precedence2B()459 void __declspec(dllexport) __declspec(dllimport) precedence2B() {}
460
461 // MSC-DAG: define dllexport void @"\01?precedenceRedecl1@@YAXXZ"
462 // GNU-DAG: define dllexport void @_Z17precedenceRedecl1v()
463 void __declspec(dllimport) precedenceRedecl1();
precedenceRedecl1()464 void __declspec(dllexport) precedenceRedecl1() {}
465
466 // MSC-DAG: define dllexport void @"\01?precedenceRedecl2@@YAXXZ"
467 // GNU-DAG: define dllexport void @_Z17precedenceRedecl2v()
468 void __declspec(dllexport) precedenceRedecl2();
precedenceRedecl2()469 void __declspec(dllimport) precedenceRedecl2() {}
470
471
472
473 //===----------------------------------------------------------------------===//
474 // Classes
475 //===----------------------------------------------------------------------===//
476
477 struct S {
aS478 void __declspec(dllexport) a() {}
479 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?a@S@@QAEXXZ"
480
481 struct T {
aS::T482 void __declspec(dllexport) a() {}
483 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?a@T@S@@QAEXXZ"
484 };
485 };
486
487 struct CtorWithClosure {
CtorWithClosureCtorWithClosure488 __declspec(dllexport) CtorWithClosure(...) {}
489 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01??_FCtorWithClosure@@QAEXXZ"({{.*}}) comdat
490 // M32-DAG: %[[this_addr:.*]] = alloca %struct.CtorWithClosure*, align 4
491 // M32-DAG: store %struct.CtorWithClosure* %this, %struct.CtorWithClosure** %[[this_addr]], align 4
492 // M32-DAG: %[[this:.*]] = load %struct.CtorWithClosure*, %struct.CtorWithClosure** %[[this_addr]]
493 // M32-DAG: call %struct.CtorWithClosure* (%struct.CtorWithClosure*, ...) @"\01??0CtorWithClosure@@QAA@ZZ"(%struct.CtorWithClosure* %[[this]])
494 // M32-DAG: ret void
495 };
496
497 #define DELETE_IMPLICIT_MEMBERS(ClassName) \
498 ClassName(ClassName &&) = delete; \
499 ClassName(ClassName &) = delete; \
500 ~ClassName() = delete; \
501 ClassName &operator=(ClassName &) = delete
502
503 struct __declspec(dllexport) ClassWithClosure {
504 DELETE_IMPLICIT_MEMBERS(ClassWithClosure);
ClassWithClosureClassWithClosure505 ClassWithClosure(...) {}
506 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01??_FClassWithClosure@@QAEXXZ"({{.*}}) comdat
507 // M32-DAG: %[[this_addr:.*]] = alloca %struct.ClassWithClosure*, align 4
508 // M32-DAG: store %struct.ClassWithClosure* %this, %struct.ClassWithClosure** %[[this_addr]], align 4
509 // M32-DAG: %[[this:.*]] = load %struct.ClassWithClosure*, %struct.ClassWithClosure** %[[this_addr]]
510 // M32-DAG: call %struct.ClassWithClosure* (%struct.ClassWithClosure*, ...) @"\01??0ClassWithClosure@@QAA@ZZ"(%struct.ClassWithClosure* %[[this]])
511 // M32-DAG: ret void
512 };
513
514 struct __declspec(dllexport) NestedOuter {
515 DELETE_IMPLICIT_MEMBERS(NestedOuter);
NestedOuterNestedOuter516 NestedOuter(void *p = 0) {}
517 struct __declspec(dllexport) NestedInner {
518 DELETE_IMPLICIT_MEMBERS(NestedInner);
NestedInnerNestedOuter::NestedInner519 NestedInner(void *p = 0) {}
520 };
521 };
522
523 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01??_FNestedOuter@@QAEXXZ"({{.*}}) comdat
524 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01??_FNestedInner@NestedOuter@@QAEXXZ"({{.*}}) comdat
525
526 template <typename T>
527 struct SomeTemplate {
SomeTemplateSomeTemplate528 SomeTemplate(T o = T()) : o(o) {}
529 T o;
530 };
531 struct __declspec(dllexport) InheritFromTemplate : SomeTemplate<int> {};
532
533 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01??_F?$SomeTemplate@H@@QAEXXZ"({{.*}}) comdat
534
535 namespace PR23801 {
536 template <typename>
537 struct S {
~SPR23801::S538 ~S() {}
539 };
540 struct A {
541 A(int);
542 S<int> s;
543 };
544 struct __declspec(dllexport) B {
BPR23801::B545 B(A = 0) {}
546 };
547
548 }
549 //
550 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01??_FB@PR23801@@QAEXXZ"({{.*}}) comdat
551
552 struct __declspec(dllexport) T {
553 // Copy assignment operator:
554 // M32-DAG: define weak_odr dllexport x86_thiscallcc dereferenceable({{[0-9]+}}) %struct.T* @"\01??4T@@QAEAAU0@ABU0@@Z"
555
556 // Explicitly defaulted copy constructur:
557 T(const T&) = default;
558 // M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.T* @"\01??0T@@QAE@ABU0@@Z"
559
aT560 void a() {}
561 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?a@T@@QAEXXZ"
562
563 static int b;
564 // M32-DAG: @"\01?b@T@@2HA" = external dllexport global i32
565
566 static int c;
567 // M32-DAG: @"\01?c@T@@2HA" = dllexport global i32 0, align 4
568 };
569
570 USEVAR(T::b)
571 int T::c;
572
fooU573 template <typename T> struct __declspec(dllexport) U { void foo() {} };
574 struct __declspec(dllexport) V : public U<int> { };
575 // U<int>'s assignment operator is emitted.
576 // M32-DAG: define weak_odr dllexport x86_thiscallcc dereferenceable({{[0-9]+}}) %struct.U* @"\01??4?$U@H@@QAEAAU0@ABU0@@Z"
577
578 struct __declspec(dllexport) W { virtual void foo(); };
foo()579 void W::foo() {}
580 // Default ctor:
581 // M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.W* @"\01??0W@@QAE@XZ"
582 // Copy ctor:
583 // M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.W* @"\01??0W@@QAE@ABU0@@Z"
584 // vftable:
585 // M32-DAG: [[W_VTABLE:@.*]] = private unnamed_addr constant [2 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4W@@6B@" to i8*), i8* bitcast (void (%struct.W*)* @"\01?foo@W@@UAEXXZ" to i8*)], comdat($"\01??_7W@@6B@")
586 // M32-DAG: @"\01??_7W@@6B@" = dllexport unnamed_addr alias i8*, getelementptr inbounds ([2 x i8*], [2 x i8*]* [[W_VTABLE]], i32 0, i32 1)
587 // G32-DAG: @_ZTV1W = dllexport unnamed_addr constant [3 x i8*] [i8* null, i8* bitcast ({ i8*, i8* }* @_ZTI1W to i8*), i8* bitcast (void (%struct.W*)* @_ZN1W3fooEv to i8*)]
588
589 struct __declspec(dllexport) X : public virtual W {};
590 // vbtable:
591 // M32-DAG: @"\01??_8X@@7B@" = weak_odr dllexport unnamed_addr constant [2 x i32] [i32 0, i32 4]
592
593 struct __declspec(dllexport) Y {
594 // Move assignment operator:
595 // M32-DAG: define weak_odr dllexport x86_thiscallcc dereferenceable({{[0-9]+}}) %struct.Y* @"\01??4Y@@QAEAAU0@$$QAU0@@Z"
596
597 int x;
598 };
599
~ZZ600 struct __declspec(dllexport) Z { virtual ~Z() {} };
601 // The scalar deleting dtor does not get exported:
602 // M32-DAG: define linkonce_odr x86_thiscallcc i8* @"\01??_GZ@@UAEPAXI@Z"
603
604
605 // The user-defined dtor does get exported:
606 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01??1Z@@UAE@XZ"
607
608 namespace UseDtorAlias {
609 struct __declspec(dllexport) A { ~A(); };
610 struct __declspec(dllexport) B : A { ~B(); };
~A()611 A::~A() { }
~B()612 B::~B() { }
613 // Emit a alias definition of B's constructor.
614 // M32-DAG: @"\01??1B@UseDtorAlias@@QAE@XZ" = dllexport alias {{.*}} @"\01??1A@UseDtorAlias@@QAE@XZ"
615 }
616
617 struct __declspec(dllexport) DefaultedCtorsDtors {
618 DefaultedCtorsDtors() = default;
619 // M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.DefaultedCtorsDtors* @"\01??0DefaultedCtorsDtors@@QAE@XZ"
620 ~DefaultedCtorsDtors() = default;
621 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01??1DefaultedCtorsDtors@@QAE@XZ"
622 };
623
624 namespace ReferencedInlineMethodInNestedClass {
625 struct __declspec(dllexport) S {
fooReferencedInlineMethodInNestedClass::S626 void foo() {
627 t->bar();
628 }
629 struct T {
barReferencedInlineMethodInNestedClass::S::T630 void bar() {}
631 };
632 T *t;
633 };
634 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?foo@S@ReferencedInlineMethodInNestedClass@@QAEXXZ"
635 // M32-DAG: define linkonce_odr x86_thiscallcc void @"\01?bar@T@S@ReferencedInlineMethodInNestedClass@@QAEXXZ"
636 }
637
638 // MS ignores DLL attributes on partial specializations.
639 template <typename T> struct PartiallySpecializedClassTemplate {};
640 template <typename T> struct __declspec(dllexport) PartiallySpecializedClassTemplate<T*> { void f(); };
f()641 template <typename T> void PartiallySpecializedClassTemplate<T*>::f() {}
642 USEMEMFUNC(PartiallySpecializedClassTemplate<void*>, f);
643 // M32-DAG: define linkonce_odr x86_thiscallcc void @"\01?f@?$PartiallySpecializedClassTemplate@PAX@@QAEXXZ"
644 // G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN33PartiallySpecializedClassTemplateIPvE1fEv
645
646 // Attributes on explicit specializations are honored.
647 template <typename T> struct ExplicitlySpecializedClassTemplate {};
648 template <> struct __declspec(dllexport) ExplicitlySpecializedClassTemplate<void*> { void f(); };
f()649 void ExplicitlySpecializedClassTemplate<void*>::f() {}
650 USEMEMFUNC(ExplicitlySpecializedClassTemplate<void*>, f);
651 // M32-DAG: define dllexport x86_thiscallcc void @"\01?f@?$ExplicitlySpecializedClassTemplate@PAX@@QAEXXZ"
652 // G32-DAG: define dllexport x86_thiscallcc void @_ZN34ExplicitlySpecializedClassTemplateIPvE1fEv
653
654 // MS inherits DLL attributes to partial specializations.
655 template <typename T> struct __declspec(dllexport) PartiallySpecializedExportedClassTemplate {};
fPartiallySpecializedExportedClassTemplate656 template <typename T> struct PartiallySpecializedExportedClassTemplate<T*> { void f() {} };
657 USEMEMFUNC(PartiallySpecializedExportedClassTemplate<void*>, f);
658 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?f@?$PartiallySpecializedExportedClassTemplate@PAX@@QAEXXZ"
659 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN41PartiallySpecializedExportedClassTemplateIPvE1fEv
660
661 // MS ignores DLL attributes on partial specializations; inheritance still works though.
662 template <typename T> struct __declspec(dllexport) PartiallySpecializedExportedClassTemplate2 {};
663 template <typename T> struct __declspec(dllimport) PartiallySpecializedExportedClassTemplate2<T*> { void f(); };
f()664 template <typename T> void PartiallySpecializedExportedClassTemplate2<T*>::f() {}
665 USEMEMFUNC(PartiallySpecializedExportedClassTemplate2<void*>, f);
666 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?f@?$PartiallySpecializedExportedClassTemplate2@PAX@@QAEXXZ"
667 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN42PartiallySpecializedExportedClassTemplate2IPvE1fEv
668
669 // Attributes on the instantiation take precedence over attributes on the template.
fExplicitlyInstantiatedWithDifferentAttr670 template <typename T> struct __declspec(dllimport) ExplicitlyInstantiatedWithDifferentAttr { void f() {} };
671 template struct __declspec(dllexport) ExplicitlyInstantiatedWithDifferentAttr<int>;
672 USEMEMFUNC(ExplicitlyInstantiatedWithDifferentAttr<int>, f);
673 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?f@?$ExplicitlyInstantiatedWithDifferentAttr@H@@QAEXXZ"
674
675 // Don't create weak dllexport aliases. (PR21373)
676 struct NonExportedBaseClass {
677 virtual ~NonExportedBaseClass();
678 };
~NonExportedBaseClass()679 NonExportedBaseClass::~NonExportedBaseClass() {}
680
681 struct __declspec(dllexport) ExportedDerivedClass : NonExportedBaseClass {};
682 // M32-DAG: weak_odr dllexport x86_thiscallcc void @"\01??1ExportedDerivedClass@@UAE@XZ"
683
684 // Do not assert about generating code for constexpr functions twice during explicit instantiation (PR21718).
685 template <typename T> struct ExplicitInstConstexprMembers {
686 // Copy assignment operator
687 // M32-DAG: define weak_odr dllexport x86_thiscallcc dereferenceable(1) %struct.ExplicitInstConstexprMembers* @"\01??4?$ExplicitInstConstexprMembers@X@@QAEAAU0@ABU0@@Z"
688
ExplicitInstConstexprMembersExplicitInstConstexprMembers689 constexpr ExplicitInstConstexprMembers() {}
690 // M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.ExplicitInstConstexprMembers* @"\01??0?$ExplicitInstConstexprMembers@X@@QAE@XZ"
691
692 ExplicitInstConstexprMembers(const ExplicitInstConstexprMembers&) = default;
693 // M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.ExplicitInstConstexprMembers* @"\01??0?$ExplicitInstConstexprMembers@X@@QAE@ABU0@@Z"
694
fExplicitInstConstexprMembers695 constexpr int f() const { return 42; }
696 // M32-DAG: define weak_odr dllexport x86_thiscallcc i32 @"\01?f@?$ExplicitInstConstexprMembers@X@@QBEHXZ"
697 };
698 template struct __declspec(dllexport) ExplicitInstConstexprMembers<void>;
699
fExplicitInstantiationDeclTemplate700 template <typename T> struct ExplicitInstantiationDeclTemplate { void f() {} };
701 extern template struct __declspec(dllexport) ExplicitInstantiationDeclTemplate<int>;
702 USEMEMFUNC(ExplicitInstantiationDeclTemplate<int>, f);
703 // M32-DAG: {{declare|define available_externally}} x86_thiscallcc void @"\01?f@?$ExplicitInstantiationDeclTemplate@H@@QAEXXZ"
704
fExplicitInstantiationDeclExportedTemplate705 template <typename T> struct __declspec(dllexport) ExplicitInstantiationDeclExportedTemplate { void f() {} };
706 extern template struct ExplicitInstantiationDeclExportedTemplate<int>;
707 USEMEMFUNC(ExplicitInstantiationDeclExportedTemplate<int>, f);
708 // M32-DAG: {{declare|define available_externally}} x86_thiscallcc void @"\01?f@?$ExplicitInstantiationDeclExportedTemplate@H@@QAEXXZ"
709
ExplicitInstantiationDeclExportedDefTemplateExplicitInstantiationDeclExportedDefTemplate710 template <typename T> struct ExplicitInstantiationDeclExportedDefTemplate { void f() {} ExplicitInstantiationDeclExportedDefTemplate() {} };
711 extern template struct ExplicitInstantiationDeclExportedDefTemplate<int>;
712 template struct __declspec(dllexport) ExplicitInstantiationDeclExportedDefTemplate<int>;
713 USEMEMFUNC(ExplicitInstantiationDeclExportedDefTemplate<int>, f);
714 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?f@?$ExplicitInstantiationDeclExportedDefTemplate@H@@QAEXXZ"
715 // M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.ExplicitInstantiationDeclExportedDefTemplate* @"\01??0?$ExplicitInstantiationDeclExportedDefTemplate@H@@QAE@XZ"
716 // G32-DAG: define weak_odr x86_thiscallcc void @_ZN44ExplicitInstantiationDeclExportedDefTemplateIiE1fEv
717
718 namespace { struct InternalLinkageType {}; }
719 struct __declspec(dllexport) PR23308 {
720 void f(InternalLinkageType*);
721 };
f(InternalLinkageType *)722 void PR23308::f(InternalLinkageType*) {}
use(PR23308 * p)723 long use(PR23308* p) { p->f(nullptr); }
724 // M32-DAG: define internal x86_thiscallcc void @"\01?f@PR23308@@QAEXPAUInternalLinkageType@?A@@@Z"
725
fPR23770BaseTemplate726 template <typename T> struct PR23770BaseTemplate { void f() {} };
727 template <typename T> struct PR23770DerivedTemplate : PR23770BaseTemplate<int> {};
728 extern template struct PR23770DerivedTemplate<int>;
729 template struct __declspec(dllexport) PR23770DerivedTemplate<int>;
730 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?f@?$PR23770BaseTemplate@H@@QAEXXZ"
731
732 namespace InClassInits {
733
734 struct __declspec(dllexport) S {
735 int x = 42;
736 };
737 // M32-DAG: define weak_odr dllexport x86_thiscallcc %"struct.InClassInits::S"* @"\01??0S@InClassInits@@QAE@XZ"
738
739 // dllexport an already instantiated class template.
740 template <typename T> struct Base {
741 int x = 42;
742 };
743 Base<int> base;
744 struct __declspec(dllexport) T : Base<int> { };
745 // M32-DAG: define weak_odr dllexport x86_thiscallcc %"struct.InClassInits::Base"* @"\01??0?$Base@H@InClassInits@@QAE@XZ"
746
747 struct A { A(int); };
748 struct __declspec(dllexport) U {
749 // Class with both default constructor closure and in-class initializer.
UInClassInits::U750 U(A = 0) {}
751 int x = 0;
752 };
753 // M32-DAG: define weak_odr dllexport x86_thiscallcc %"struct.InClassInits::U"* @"\01??0U@InClassInits@@QAE@UA@1@@Z"
754
755 struct Evil {
756 template <typename T> struct Base {
757 int x = 0;
758 };
759 struct S : Base<int> {};
760 // The already instantiated Base<int> becomes dllexported below, but the
761 // in-class initializer for Base<>::x still hasn't been parsed, so emitting
762 // the default ctor must still be delayed.
763 struct __declspec(dllexport) T : Base<int> {};
764 };
765 // M32-DAG: define weak_odr dllexport x86_thiscallcc %"struct.InClassInits::Evil::Base"* @"\01??0?$Base@H@Evil@InClassInits@@QAE@XZ"
766
767 template <typename T> struct Foo {};
768 template <typename T> struct Bar {
operator =InClassInits::Bar769 Bar<T> &operator=(Foo<T>) {}
770 };
771 struct __declspec(dllexport) Baz {
772 Bar<int> n;
773 };
774 // After parsing Baz, in ActOnFinishCXXNonNestedClass we would synthesize
775 // Baz's operator=, causing instantiation of Foo<int> after which
776 // ActOnFinishCXXNonNestedClass is called, and we would bite our own tail.
777 // M32-DAG: define weak_odr dllexport x86_thiscallcc dereferenceable(1) %"struct.InClassInits::Baz"* @"\01??4Baz@InClassInits@@QAEAAU01@ABU01@@Z"
778 }
779
780
781 //===----------------------------------------------------------------------===//
782 // Classes with template base classes
783 //===----------------------------------------------------------------------===//
784
785 template <typename T> struct ClassTemplate { void func(); };
func()786 template <typename T> void ClassTemplate<T>::func() {}
787 template <typename T> struct __declspec(dllexport) ExportedClassTemplate { void func(); };
func()788 template <typename T> void ExportedClassTemplate<T>::func() {}
789 template <typename T> struct __declspec(dllimport) ImportedClassTemplate { void func(); };
func()790 template <typename T> void ImportedClassTemplate<T>::func() {}
791
funcExplicitlySpecializedTemplate792 template <typename T> struct ExplicitlySpecializedTemplate { void func() {} };
793 template <> struct ExplicitlySpecializedTemplate<int> { void func(); };
func()794 void ExplicitlySpecializedTemplate<int>::func() {}
funcExplicitlyExportSpecializedTemplate795 template <typename T> struct ExplicitlyExportSpecializedTemplate { void func() {} };
796 template <> struct __declspec(dllexport) ExplicitlyExportSpecializedTemplate<int> { void func(); };
func()797 void ExplicitlyExportSpecializedTemplate<int>::func() {}
798 template <typename T> struct ExplicitlyImportSpecializedTemplate { void func(); };
799 template <> struct __declspec(dllimport) ExplicitlyImportSpecializedTemplate<int> { void func(); };
800
801 template <typename T> struct ExplicitlyInstantiatedTemplate { void func(); };
func()802 template <typename T> void ExplicitlyInstantiatedTemplate<T>::func() {}
803 template struct ExplicitlyInstantiatedTemplate<int>;
804 template <typename T> struct ExplicitlyExportInstantiatedTemplate { void func(); };
func()805 template <typename T> void ExplicitlyExportInstantiatedTemplate<T>::func() {}
806 template struct __declspec(dllexport) ExplicitlyExportInstantiatedTemplate<int>;
807 template <typename T> struct ExplicitlyImportInstantiatedTemplate { void func(); };
808 template struct __declspec(dllimport) ExplicitlyImportInstantiatedTemplate<int>;
809
810
811 // MS: ClassTemplate<int> gets exported.
812 struct __declspec(dllexport) DerivedFromTemplate : public ClassTemplate<int> {};
813 USEMEMFUNC(DerivedFromTemplate, func)
814 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ClassTemplate@H@@QAEXXZ"
815 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIiE4funcEv
816
817 // ExportedTemplate is explicitly exported.
818 struct __declspec(dllexport) DerivedFromExportedTemplate : public ExportedClassTemplate<int> {};
819 USEMEMFUNC(DerivedFromExportedTemplate, func)
820 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExportedClassTemplate@H@@QAEXXZ"
821 // G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN21ExportedClassTemplateIiE4funcEv
822
823 // ImportedClassTemplate is explicitly imported.
824 struct __declspec(dllexport) DerivedFromImportedTemplate : public ImportedClassTemplate<int> {};
825 USEMEMFUNC(DerivedFromImportedTemplate, func)
826 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$ImportedClassTemplate@H@@QAEXXZ"
827 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN21ImportedClassTemplateIiE4funcEv
828
829 // Base class already implicitly instantiated without dll attribute.
830 struct DerivedFromTemplateD : public ClassTemplate<double> {};
831 struct __declspec(dllexport) DerivedFromTemplateD2 : public ClassTemplate<double> {};
832 USEMEMFUNC(DerivedFromTemplateD2, func)
833 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ClassTemplate@N@@QAEXXZ"
834 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIdE4funcEv
835
836 // MS: Base class already instantiated with different dll attribute.
837 struct __declspec(dllimport) DerivedFromTemplateB : public ClassTemplate<bool> {};
838 struct __declspec(dllexport) DerivedFromTemplateB2 : public ClassTemplate<bool> {};
839 USEMEMFUNC(DerivedFromTemplateB2, func)
840 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$ClassTemplate@_N@@QAEXXZ"
841 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIbE4funcEv
842
843 // Base class already specialized without dll attribute.
844 struct __declspec(dllexport) DerivedFromExplicitlySpecializedTemplate : public ExplicitlySpecializedTemplate<int> {};
845 USEMEMFUNC(DerivedFromExplicitlySpecializedTemplate, func)
846 // M32-DAG: define x86_thiscallcc void @"\01?func@?$ExplicitlySpecializedTemplate@H@@QAEXXZ"
847 // G32-DAG: define x86_thiscallcc void @_ZN29ExplicitlySpecializedTemplateIiE4funcEv
848
849 // Base class alredy specialized with export attribute.
850 struct __declspec(dllexport) DerivedFromExplicitlyExportSpecializedTemplate : public ExplicitlyExportSpecializedTemplate<int> {};
851 USEMEMFUNC(DerivedFromExplicitlyExportSpecializedTemplate, func)
852 // M32-DAG: define dllexport x86_thiscallcc void @"\01?func@?$ExplicitlyExportSpecializedTemplate@H@@QAEXXZ"
853 // G32-DAG: define dllexport x86_thiscallcc void @_ZN35ExplicitlyExportSpecializedTemplateIiE4funcEv
854
855 // Base class already specialized with import attribute.
856 struct __declspec(dllexport) DerivedFromExplicitlyImportSpecializedTemplate : public ExplicitlyImportSpecializedTemplate<int> {};
857 USEMEMFUNC(DerivedFromExplicitlyImportSpecializedTemplate, func)
858 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?func@?$ExplicitlyImportSpecializedTemplate@H@@QAEXXZ"
859 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN35ExplicitlyImportSpecializedTemplateIiE4funcEv
860
861 // Base class already instantiated without dll attribute.
862 struct __declspec(dllexport) DerivedFromExplicitlyInstantiatedTemplate : public ExplicitlyInstantiatedTemplate<int> {};
863 USEMEMFUNC(DerivedFromExplicitlyInstantiatedTemplate, func)
864 // M32-DAG: define weak_odr x86_thiscallcc void @"\01?func@?$ExplicitlyInstantiatedTemplate@H@@QAEXXZ"
865 // G32-DAG: define weak_odr x86_thiscallcc void @_ZN30ExplicitlyInstantiatedTemplateIiE4funcEv
866
867 // Base class already instantiated with export attribute.
868 struct __declspec(dllexport) DerivedFromExplicitlyExportInstantiatedTemplate : public ExplicitlyExportInstantiatedTemplate<int> {};
869 USEMEMFUNC(DerivedFromExplicitlyExportInstantiatedTemplate, func)
870 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExplicitlyExportInstantiatedTemplate@H@@QAEXXZ"
871 // G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN36ExplicitlyExportInstantiatedTemplateIiE4funcEv
872
873 // Base class already instantiated with import attribute.
874 struct __declspec(dllexport) DerivedFromExplicitlyImportInstantiatedTemplate : public ExplicitlyImportInstantiatedTemplate<int> {};
875 USEMEMFUNC(DerivedFromExplicitlyImportInstantiatedTemplate, func)
876 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?func@?$ExplicitlyImportInstantiatedTemplate@H@@QAEXXZ"
877 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN36ExplicitlyImportInstantiatedTemplateIiE4funcEv
878
879 // MS: A dll attribute propagates through multiple levels of instantiation.
funcTopClass880 template <typename T> struct TopClass { void func() {} };
881 template <typename T> struct MiddleClass : public TopClass<T> { };
882 struct __declspec(dllexport) BottomClass : public MiddleClass<int> { };
883 USEMEMFUNC(BottomClass, func)
884 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$TopClass@H@@QAEXXZ"
885 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN8TopClassIiE4funcEv
886
funcExplicitInstantiationDeclTemplateBase887 template <typename T> struct ExplicitInstantiationDeclTemplateBase { void func() {} };
888 extern template struct ExplicitInstantiationDeclTemplateBase<int>;
889 struct __declspec(dllexport) DerivedFromExplicitInstantiationDeclTemplateBase : public ExplicitInstantiationDeclTemplateBase<int> {};
890 template struct ExplicitInstantiationDeclTemplateBase<int>;
891 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExplicitInstantiationDeclTemplateBase@H@@QAEXXZ"
892 // G32-DAG: define weak_odr x86_thiscallcc void @_ZN37ExplicitInstantiationDeclTemplateBaseIiE4funcEv
893
funcExplicitInstantiationDeclTemplateBase2894 template <typename T> struct ExplicitInstantiationDeclTemplateBase2 { void func() {} };
895 extern template struct ExplicitInstantiationDeclTemplateBase2<int>;
896 struct __declspec(dllexport) DerivedFromExplicitInstantiationDeclTemplateBase2 : public ExplicitInstantiationDeclTemplateBase2<int> {};
897 template struct __declspec(dllimport) ExplicitInstantiationDeclTemplateBase2<int>;
898 USEMEMFUNC(ExplicitInstantiationDeclTemplateBase2<int>, func)
899 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExplicitInstantiationDeclTemplateBase2@H@@QAEXXZ"
900 // G32-DAG: define weak_odr x86_thiscallcc void @_ZN38ExplicitInstantiationDeclTemplateBase2IiE4funcEv
901