1 // RUN: %clang_cc1 -triple i686-windows-msvc -emit-llvm -std=c++1y -O0 -o - %s | FileCheck --check-prefix=MSC --check-prefix=M32 %s 2 // RUN: %clang_cc1 -triple x86_64-windows-msvc -emit-llvm -std=c++1y -O0 -o - %s | FileCheck --check-prefix=MSC --check-prefix=M64 %s 3 // RUN: %clang_cc1 -triple i686-windows-gnu -emit-llvm -std=c++1y -O0 -o - %s | FileCheck --check-prefix=GNU --check-prefix=G32 %s 4 // RUN: %clang_cc1 -triple x86_64-windows-gnu -emit-llvm -std=c++1y -O0 -o - %s | FileCheck --check-prefix=GNU --check-prefix=G64 %s 5 6 // RUN: %clang_cc1 -triple i686-pc-win32 -O1 -mconstructor-aliases -std=c++1y -emit-llvm -o - %s | FileCheck %s --check-prefix=MSC --check-prefix=M32 7 8 // Helper structs to make templates more expressive. 9 struct ImplicitInst_Exported {}; 10 struct ExplicitDecl_Exported {}; 11 struct ExplicitInst_Exported {}; 12 struct ExplicitSpec_Exported {}; 13 struct ExplicitSpec_Def_Exported {}; 14 struct ExplicitSpec_InlineDef_Exported {}; 15 struct ExplicitSpec_NotExported {}; 16 struct External { int v; }; 17 18 #define JOIN2(x, y) x##y 19 #define JOIN(x, y) JOIN2(x, y) 20 #define UNIQ(name) JOIN(name, __LINE__) 21 #define USEVAR(var) int UNIQ(use)() { return var; } 22 #define USE(func) void UNIQ(use)() { func(); } 23 #define USEMEMFUNC(class, func) void (class::*UNIQ(use)())() { return &class::func; } 24 #define INSTVAR(var) template int var; 25 #define INST(func) template void func(); 26 27 // The vftable for struct W is comdat largest because we have RTTI. 28 // M32-DAG: $"\01??_7W@@6B@" = comdat largest 29 30 31 //===----------------------------------------------------------------------===// 32 // Globals 33 //===----------------------------------------------------------------------===// 34 35 // Declarations are not exported. 36 // MSC-NOT: @"\01?ExternGlobalDecl@@3HA" 37 // GNU-NOT: @ExternGlobalDecl 38 __declspec(dllexport) extern int ExternGlobalDecl; 39 40 // dllexport implies a definition. 41 // MSC-DAG: @"\01?GlobalDef@@3HA" = dllexport global i32 0, align 4 42 // GNU-DAG: @GlobalDef = dllexport global i32 0, align 4 43 __declspec(dllexport) int GlobalDef; 44 45 // Export definition. 46 // MSC-DAG: @"\01?GlobalInit1@@3HA" = dllexport global i32 1, align 4 47 // GNU-DAG: @GlobalInit1 = dllexport global i32 1, align 4 48 __declspec(dllexport) int GlobalInit1 = 1; 49 50 // MSC-DAG: @"\01?GlobalInit2@@3HA" = dllexport global i32 1, align 4 51 // GNU-DAG: @GlobalInit2 = dllexport global i32 1, align 4 52 int __declspec(dllexport) GlobalInit2 = 1; 53 54 // Declare, then export definition. 55 // MSC-DAG: @"\01?GlobalDeclInit@@3HA" = dllexport global i32 1, align 4 56 // GNU-DAG: @GlobalDeclInit = dllexport global i32 1, align 4 57 __declspec(dllexport) extern int GlobalDeclInit; 58 int GlobalDeclInit = 1; 59 60 // Redeclarations 61 // MSC-DAG: @"\01?GlobalRedecl1@@3HA" = dllexport global i32 0, align 4 62 // GNU-DAG: @GlobalRedecl1 = dllexport global i32 0, align 4 63 __declspec(dllexport) extern int GlobalRedecl1; 64 __declspec(dllexport) int GlobalRedecl1; 65 66 // MSC-DAG: @"\01?GlobalRedecl2@@3HA" = dllexport global i32 0, align 4 67 // GNU-DAG: @GlobalRedecl2 = dllexport global i32 0, align 4 68 __declspec(dllexport) extern int GlobalRedecl2; 69 int GlobalRedecl2; 70 71 // MSC-DAG: @"\01?ExternalGlobal@ns@@3HA" = dllexport global i32 0, align 4 72 // GNU-DAG: @_ZN2ns14ExternalGlobalE = dllexport global i32 0, align 4 73 namespace ns { __declspec(dllexport) int ExternalGlobal; } 74 75 // MSC-DAG: @"\01?ExternalAutoTypeGlobal@@3UExternal@@A" = dllexport global %struct.External zeroinitializer, align 4 76 // GNU-DAG: @ExternalAutoTypeGlobal = dllexport global %struct.External zeroinitializer, align 4 77 __declspec(dllexport) auto ExternalAutoTypeGlobal = External(); 78 79 int f(); 80 // MSC-DAG: @"\01?x@?0??nonInlineStaticLocalsFunc@@YAHXZ@4HA" = internal {{(unnamed_addr )*}}global i32 0 81 // MSC-DAG: @"\01?$S1@?0??nonInlineStaticLocalsFunc@@YAHXZ@4IA" = internal {{(unnamed_addr )*}}global i32 0 82 int __declspec(dllexport) nonInlineStaticLocalsFunc() { 83 static int x = f(); 84 return x++; 85 }; 86 87 // MSC-DAG: @"\01?x@?1??inlineStaticLocalsFunc@@YAHXZ@4HA" = weak_odr dllexport global i32 0 88 // MSC-DAG: @"\01??_B?1??inlineStaticLocalsFunc@@YAHXZ@51" = weak_odr dllexport global i32 0 89 // Note: MinGW doesn't seem to export the static local here. 90 inline int __declspec(dllexport) inlineStaticLocalsFunc() { 91 static int x = f(); 92 return x++; 93 } 94 95 96 97 //===----------------------------------------------------------------------===// 98 // Variable templates 99 //===----------------------------------------------------------------------===// 100 101 // Declarations are not exported. 102 103 // dllexport implies a definition. 104 // MSC-NOT: @"\01??$VarTmplDef@UExplicitInst_Exported@@@@3HA" 105 // GNU-NOT: @_Z10VarTmplDefI21ExplicitInst_ExportedE 106 template<typename T> __declspec(dllexport) int VarTmplDef; 107 INSTVAR(VarTmplDef<ExplicitInst_Exported>) 108 109 // MSC-DAG: @"\01??$VarTmplImplicitDef@UImplicitInst_Exported@@@@3HA" = external dllexport global 110 // GNU-DAG: @_Z18VarTmplImplicitDefI21ImplicitInst_ExportedE = external dllexport global 111 template<typename T> __declspec(dllexport) int VarTmplImplicitDef; 112 USEVAR(VarTmplImplicitDef<ImplicitInst_Exported>) 113 114 // Export definition. 115 // MSC-DAG: @"\01??$VarTmplInit1@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 116 // GNU-DAG: @_Z12VarTmplInit1I21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 117 template<typename T> __declspec(dllexport) int VarTmplInit1 = 1; 118 INSTVAR(VarTmplInit1<ExplicitInst_Exported>) 119 120 // MSC-DAG: @"\01??$VarTmplInit2@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 121 // GNU-DAG: @_Z12VarTmplInit2I21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 122 template<typename T> int __declspec(dllexport) VarTmplInit2 = 1; 123 INSTVAR(VarTmplInit2<ExplicitInst_Exported>) 124 125 // Declare, then export definition. 126 // MSC-DAG: @"\01??$VarTmplDeclInit@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 127 // GNU-DAG: @_Z15VarTmplDeclInitI21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 128 template<typename T> __declspec(dllexport) extern int VarTmplDeclInit; 129 template<typename T> int VarTmplDeclInit = 1; 130 INSTVAR(VarTmplDeclInit<ExplicitInst_Exported>) 131 132 // Redeclarations 133 // MSC-DAG: @"\01??$VarTmplRedecl1@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 134 // GNU-DAG: @_Z14VarTmplRedecl1I21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 135 template<typename T> __declspec(dllexport) extern int VarTmplRedecl1; 136 template<typename T> __declspec(dllexport) int VarTmplRedecl1 = 1; 137 INSTVAR(VarTmplRedecl1<ExplicitInst_Exported>) 138 139 // MSC-DAG: @"\01??$VarTmplRedecl2@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 140 // GNU-DAG: @_Z14VarTmplRedecl2I21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 141 template<typename T> __declspec(dllexport) extern int VarTmplRedecl2; 142 template<typename T> int VarTmplRedecl2 = 1; 143 INSTVAR(VarTmplRedecl2<ExplicitInst_Exported>) 144 145 // MSC-DAG: @"\01??$ExternalVarTmpl@UExplicitInst_Exported@@@ns@@3HA" = weak_odr dllexport global i32 1, align 4 146 // GNU-DAG: @_ZN2ns15ExternalVarTmplI21ExplicitInst_ExportedEE = weak_odr dllexport global i32 1, align 4 147 namespace ns { template<typename T> __declspec(dllexport) int ExternalVarTmpl = 1; } 148 INSTVAR(ns::ExternalVarTmpl<ExplicitInst_Exported>) 149 150 // MSC-DAG: @"\01??$ExternalAutoTypeVarTmpl@UExplicitInst_Exported@@@@3UExternal@@A" = weak_odr dllexport global %struct.External zeroinitializer, align 4 151 // GNU-DAG: @_Z23ExternalAutoTypeVarTmplI21ExplicitInst_ExportedE = weak_odr dllexport global %struct.External zeroinitializer, align 4 152 template<typename T> __declspec(dllexport) auto ExternalAutoTypeVarTmpl = External(); 153 template External ExternalAutoTypeVarTmpl<ExplicitInst_Exported>; 154 155 156 template<typename T> int VarTmpl = 1; 157 template<typename T> __declspec(dllexport) int ExportedVarTmpl = 1; 158 159 // Export implicit instantiation of an exported variable template. 160 // MSC-DAG: @"\01??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 161 // GNU-DAG: @_Z15ExportedVarTmplI21ImplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 162 USEVAR(ExportedVarTmpl<ImplicitInst_Exported>) 163 164 // Export explicit instantiation declaration of an exported variable template. 165 // MSC-DAG: @"\01??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 166 // GNU-DAG: @_Z15ExportedVarTmplI21ExplicitDecl_ExportedE = weak_odr dllexport global i32 1, align 4 167 extern template int ExportedVarTmpl<ExplicitDecl_Exported>; 168 template int ExportedVarTmpl<ExplicitDecl_Exported>; 169 170 // Export explicit instantiation definition of an exported variable template. 171 // MSC-DAG: @"\01??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 172 // GNU-DAG: @_Z15ExportedVarTmplI21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 173 template __declspec(dllexport) int ExportedVarTmpl<ExplicitInst_Exported>; 174 175 // Export specialization of an exported variable template. 176 // MSC-DAG: @"\01??$ExportedVarTmpl@UExplicitSpec_Exported@@@@3HA" = dllexport global i32 0, align 4 177 // GNU-DAG: @_Z15ExportedVarTmplI21ExplicitSpec_ExportedE = dllexport global i32 0, align 4 178 template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Exported>; 179 180 // MSC-DAG: @"\01??$ExportedVarTmpl@UExplicitSpec_Def_Exported@@@@3HA" = dllexport global i32 1, align 4 181 // GNU-DAG: @_Z15ExportedVarTmplI25ExplicitSpec_Def_ExportedE = dllexport global i32 1, align 4 182 template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Def_Exported> = 1; 183 184 // Not exporting specialization of an exported variable template without 185 // explicit dllexport. 186 // MSC-DAG: @"\01??$ExportedVarTmpl@UExplicitSpec_NotExported@@@@3HA" = global i32 0, align 4 187 // GNU-DAG: @_Z15ExportedVarTmplI24ExplicitSpec_NotExportedE = global i32 0, align 4 188 template<> int ExportedVarTmpl<ExplicitSpec_NotExported>; 189 190 191 // Export explicit instantiation declaration of a non-exported variable template. 192 // MSC-DAG: @"\01??$VarTmpl@UExplicitDecl_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 193 // GNU-DAG: @_Z7VarTmplI21ExplicitDecl_ExportedE = weak_odr dllexport global i32 1, align 4 194 extern template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>; 195 template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>; 196 197 // Export explicit instantiation definition of a non-exported variable template. 198 // MSC-DAG: @"\01??$VarTmpl@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 199 // GNU-DAG: @_Z7VarTmplI21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 200 template __declspec(dllexport) int VarTmpl<ExplicitInst_Exported>; 201 202 // Export specialization of a non-exported variable template. 203 // MSC-DAG: @"\01??$VarTmpl@UExplicitSpec_Exported@@@@3HA" = dllexport global i32 0, align 4 204 // GNU-DAG: @_Z7VarTmplI21ExplicitSpec_ExportedE = dllexport global i32 0, align 4 205 template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Exported>; 206 207 // MSC-DAG: @"\01??$VarTmpl@UExplicitSpec_Def_Exported@@@@3HA" = dllexport global i32 1, align 4 208 // GNU-DAG: @_Z7VarTmplI25ExplicitSpec_Def_ExportedE = dllexport global i32 1, align 4 209 template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Def_Exported> = 1; 210 211 212 213 //===----------------------------------------------------------------------===// 214 // Functions 215 //===----------------------------------------------------------------------===// 216 217 // Declarations are not exported. 218 219 // Export function definition. 220 // MSC-DAG: define dllexport void @"\01?def@@YAXXZ"() 221 // GNU-DAG: define dllexport void @_Z3defv() 222 __declspec(dllexport) void def() {} 223 224 // extern "C" 225 // MSC-DAG: define dllexport void @externC() 226 // GNU-DAG: define dllexport void @externC() 227 extern "C" __declspec(dllexport) void externC() {} 228 229 // Export inline function. 230 // MSC-DAG: define weak_odr dllexport void @"\01?inlineFunc@@YAXXZ"() 231 // GNU-DAG: define weak_odr dllexport void @_Z10inlineFuncv() 232 __declspec(dllexport) inline void inlineFunc() {} 233 234 // MSC-DAG: define weak_odr dllexport void @"\01?inlineDecl@@YAXXZ"() 235 // GNU-DAG: define weak_odr dllexport void @_Z10inlineDeclv() 236 __declspec(dllexport) inline void inlineDecl(); 237 void inlineDecl() {} 238 239 // MSC-DAG: define weak_odr dllexport void @"\01?inlineDef@@YAXXZ"() 240 // GNU-DAG: define weak_odr dllexport void @_Z9inlineDefv() 241 __declspec(dllexport) void inlineDef(); 242 inline void inlineDef() {} 243 244 // Redeclarations 245 // MSC-DAG: define dllexport void @"\01?redecl1@@YAXXZ"() 246 // GNU-DAG: define dllexport void @_Z7redecl1v() 247 __declspec(dllexport) void redecl1(); 248 __declspec(dllexport) void redecl1() {} 249 250 // MSC-DAG: define dllexport void @"\01?redecl2@@YAXXZ"() 251 // GNU-DAG: define dllexport void @_Z7redecl2v() 252 __declspec(dllexport) void redecl2(); 253 void redecl2() {} 254 255 // Friend functions 256 // MSC-DAG: define dllexport void @"\01?friend1@@YAXXZ"() 257 // GNU-DAG: define dllexport void @_Z7friend1v() 258 // MSC-DAG: define dllexport void @"\01?friend2@@YAXXZ"() 259 // GNU-DAG: define dllexport void @_Z7friend2v() 260 struct FuncFriend { 261 friend __declspec(dllexport) void friend1(); 262 friend __declspec(dllexport) void friend2(); 263 }; 264 __declspec(dllexport) void friend1() {} 265 void friend2() {} 266 267 // Implicit declarations can be redeclared with dllexport. 268 // MSC-DAG: define dllexport noalias i8* @"\01??2@{{YAPAXI|YAPEAX_K}}@Z"( 269 // GNU-DAG: define dllexport noalias i8* @_Znw{{[yj]}}( 270 void* alloc(__SIZE_TYPE__ n); 271 __declspec(dllexport) void* operator new(__SIZE_TYPE__ n) { return alloc(n); } 272 273 // MSC-DAG: define dllexport void @"\01?externalFunc@ns@@YAXXZ"() 274 // GNU-DAG: define dllexport void @_ZN2ns12externalFuncEv() 275 namespace ns { __declspec(dllexport) void externalFunc() {} } 276 277 278 279 //===----------------------------------------------------------------------===// 280 // Function templates 281 //===----------------------------------------------------------------------===// 282 283 // Export function template definition. 284 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplDef@UExplicitInst_Exported@@@@YAXXZ"() 285 // GNU-DAG: define weak_odr dllexport void @_Z11funcTmplDefI21ExplicitInst_ExportedEvv() 286 template<typename T> __declspec(dllexport) void funcTmplDef() {} 287 INST(funcTmplDef<ExplicitInst_Exported>) 288 289 // Export inline function template. 290 // MSC-DAG: define weak_odr dllexport void @"\01??$inlineFuncTmpl1@UExplicitInst_Exported@@@@YAXXZ"() 291 // GNU-DAG: define weak_odr dllexport void @_Z15inlineFuncTmpl1I21ExplicitInst_ExportedEvv() 292 template<typename T> __declspec(dllexport) inline void inlineFuncTmpl1() {} 293 INST(inlineFuncTmpl1<ExplicitInst_Exported>) 294 295 // MSC-DAG: define weak_odr dllexport void @"\01??$inlineFuncTmpl2@UExplicitInst_Exported@@@@YAXXZ"() 296 // GNU-DAG: define weak_odr dllexport void @_Z15inlineFuncTmpl2I21ExplicitInst_ExportedEvv() 297 template<typename T> inline void __attribute__((dllexport)) inlineFuncTmpl2() {} 298 INST(inlineFuncTmpl2<ExplicitInst_Exported>) 299 300 // MSC-DAG: define weak_odr dllexport void @"\01??$inlineFuncTmplDecl@UExplicitInst_Exported@@@@YAXXZ"() 301 // GNU-DAG: define weak_odr dllexport void @_Z18inlineFuncTmplDeclI21ExplicitInst_ExportedEvv() 302 template<typename T> __declspec(dllexport) inline void inlineFuncTmplDecl(); 303 template<typename T> void inlineFuncTmplDecl() {} 304 INST(inlineFuncTmplDecl<ExplicitInst_Exported>) 305 306 // MSC-DAG: define weak_odr dllexport void @"\01??$inlineFuncTmplDef@UExplicitInst_Exported@@@@YAXXZ"() 307 // GNU-DAG: define weak_odr dllexport void @_Z17inlineFuncTmplDefI21ExplicitInst_ExportedEvv() 308 template<typename T> __declspec(dllexport) void inlineFuncTmplDef(); 309 template<typename T> inline void inlineFuncTmplDef() {} 310 INST(inlineFuncTmplDef<ExplicitInst_Exported>) 311 312 313 // Redeclarations 314 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplRedecl1@UExplicitInst_Exported@@@@YAXXZ"() 315 // GNU-DAG: define weak_odr dllexport void @_Z15funcTmplRedecl1I21ExplicitInst_ExportedEvv() 316 template<typename T> __declspec(dllexport) void funcTmplRedecl1(); 317 template<typename T> __declspec(dllexport) void funcTmplRedecl1() {} 318 INST(funcTmplRedecl1<ExplicitInst_Exported>) 319 320 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplRedecl2@UExplicitInst_Exported@@@@YAXXZ"() 321 // GNU-DAG: define weak_odr dllexport void @_Z15funcTmplRedecl2I21ExplicitInst_ExportedEvv() 322 template<typename T> __declspec(dllexport) void funcTmplRedecl2(); 323 template<typename T> void funcTmplRedecl2() {} 324 INST(funcTmplRedecl2<ExplicitInst_Exported>) 325 326 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplRedecl3@UExplicitInst_Exported@@@@YAXXZ"() 327 // GNU-DAG: define weak_odr dllexport void @_Z15funcTmplRedecl3I21ExplicitInst_ExportedEvv() 328 template<typename T> __declspec(dllexport) void funcTmplRedecl3(); 329 template<typename T> void funcTmplRedecl3() {} 330 INST(funcTmplRedecl3<ExplicitInst_Exported>) 331 332 333 // Function template friends 334 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplFriend1@UExplicitInst_Exported@@@@YAXXZ"() 335 // GNU-DAG: define weak_odr dllexport void @_Z15funcTmplFriend1I21ExplicitInst_ExportedEvv() 336 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplFriend2@UExplicitInst_Exported@@@@YAXXZ"() 337 // GNU-DAG: define weak_odr dllexport void @_Z15funcTmplFriend2I21ExplicitInst_ExportedEvv() 338 struct FuncTmplFriend { 339 template<typename T> friend __declspec(dllexport) void funcTmplFriend1(); 340 template<typename T> friend __declspec(dllexport) void funcTmplFriend2(); 341 }; 342 template<typename T> __declspec(dllexport) void funcTmplFriend1() {} 343 template<typename T> void funcTmplFriend2() {} 344 INST(funcTmplFriend1<ExplicitInst_Exported>) 345 INST(funcTmplFriend2<ExplicitInst_Exported>) 346 347 // MSC-DAG: define weak_odr dllexport void @"\01??$externalFuncTmpl@UExplicitInst_Exported@@@ns@@YAXXZ"() 348 // GNU-DAG: define weak_odr dllexport void @_ZN2ns16externalFuncTmplI21ExplicitInst_ExportedEEvv() 349 namespace ns { template<typename T> __declspec(dllexport) void externalFuncTmpl() {} } 350 INST(ns::externalFuncTmpl<ExplicitInst_Exported>) 351 352 353 template<typename T> void funcTmpl() {} 354 template<typename T> __declspec(dllexport) void exportedFuncTmpl() {} 355 356 // Export implicit instantiation of an exported function template. 357 // MSC-DAG: define weak_odr dllexport void @"\01??$exportedFuncTmpl@UImplicitInst_Exported@@@@YAXXZ"() 358 // GNU-DAG: define weak_odr dllexport void @_Z16exportedFuncTmplI21ImplicitInst_ExportedEvv() 359 USE(exportedFuncTmpl<ImplicitInst_Exported>) 360 361 // Export explicit instantiation declaration of an exported function template. 362 // MSC-DAG: define weak_odr dllexport void @"\01??$exportedFuncTmpl@UExplicitDecl_Exported@@@@YAXXZ"() 363 // GNU-DAG: define weak_odr dllexport void @_Z16exportedFuncTmplI21ExplicitDecl_ExportedEvv() 364 extern template void exportedFuncTmpl<ExplicitDecl_Exported>(); 365 template void exportedFuncTmpl<ExplicitDecl_Exported>(); 366 367 // Export explicit instantiation definition of an exported function template. 368 // MSC-DAG: define weak_odr dllexport void @"\01??$exportedFuncTmpl@UExplicitInst_Exported@@@@YAXXZ"() 369 // GNU-DAG: define weak_odr dllexport void @_Z16exportedFuncTmplI21ExplicitInst_ExportedEvv() 370 template void exportedFuncTmpl<ExplicitInst_Exported>(); 371 372 // Export specialization of an exported function template. 373 // MSC-DAG: define dllexport void @"\01??$exportedFuncTmpl@UExplicitSpec_Def_Exported@@@@YAXXZ"() 374 // GNU-DAG: define dllexport void @_Z16exportedFuncTmplI25ExplicitSpec_Def_ExportedEvv() 375 template<> __declspec(dllexport) void exportedFuncTmpl<ExplicitSpec_Def_Exported>() {} 376 377 // MSC-DAG: define weak_odr dllexport void @"\01??$exportedFuncTmpl@UExplicitSpec_InlineDef_Exported@@@@YAXXZ"() 378 // GNU-DAG: define weak_odr dllexport void @_Z16exportedFuncTmplI31ExplicitSpec_InlineDef_ExportedEvv() 379 template<> __declspec(dllexport) inline void exportedFuncTmpl<ExplicitSpec_InlineDef_Exported>() {} 380 381 // Not exporting specialization of an exported function template without 382 // explicit dllexport. 383 // MSC-DAG: define void @"\01??$exportedFuncTmpl@UExplicitSpec_NotExported@@@@YAXXZ"() 384 // GNU-DAG: define void @_Z16exportedFuncTmplI24ExplicitSpec_NotExportedEvv() 385 template<> void exportedFuncTmpl<ExplicitSpec_NotExported>() {} 386 387 388 // Export explicit instantiation declaration of a non-exported function template. 389 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmpl@UExplicitDecl_Exported@@@@YAXXZ"() 390 // GNU-DAG: define weak_odr dllexport void @_Z8funcTmplI21ExplicitDecl_ExportedEvv() 391 extern template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>(); 392 template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>(); 393 394 // Export explicit instantiation definition of a non-exported function template. 395 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmpl@UExplicitInst_Exported@@@@YAXXZ"() 396 // GNU-DAG: define weak_odr dllexport void @_Z8funcTmplI21ExplicitInst_ExportedEvv() 397 template __declspec(dllexport) void funcTmpl<ExplicitInst_Exported>(); 398 399 // Export specialization of a non-exported function template. 400 // MSC-DAG: define dllexport void @"\01??$funcTmpl@UExplicitSpec_Def_Exported@@@@YAXXZ"() 401 // GNU-DAG: define dllexport void @_Z8funcTmplI25ExplicitSpec_Def_ExportedEvv() 402 template<> __declspec(dllexport) void funcTmpl<ExplicitSpec_Def_Exported>() {} 403 404 // MSC-DAG: define weak_odr dllexport void @"\01??$funcTmpl@UExplicitSpec_InlineDef_Exported@@@@YAXXZ"() 405 // GNU-DAG: define weak_odr dllexport void @_Z8funcTmplI31ExplicitSpec_InlineDef_ExportedEvv() 406 template<> __declspec(dllexport) inline void funcTmpl<ExplicitSpec_InlineDef_Exported>() {} 407 408 409 410 //===----------------------------------------------------------------------===// 411 // Precedence 412 //===----------------------------------------------------------------------===// 413 414 // dllexport takes precedence over the dllimport if both are specified. 415 // MSC-DAG: @"\01?PrecedenceGlobal1A@@3HA" = dllexport global i32 0, align 4 416 // MSC-DAG: @"\01?PrecedenceGlobal1B@@3HA" = dllexport global i32 0, align 4 417 // GNU-DAG: @PrecedenceGlobal1A = dllexport global i32 0, align 4 418 // GNU-DAG: @PrecedenceGlobal1B = dllexport global i32 0, align 4 419 __attribute__((dllimport, dllexport)) int PrecedenceGlobal1A; // dllimport ignored 420 __declspec(dllimport) __declspec(dllexport) int PrecedenceGlobal1B; // dllimport ignored 421 422 // MSC-DAG: @"\01?PrecedenceGlobal2A@@3HA" = dllexport global i32 0, align 4 423 // MSC-DAG: @"\01?PrecedenceGlobal2B@@3HA" = dllexport global i32 0, align 4 424 // GNU-DAG: @PrecedenceGlobal2A = dllexport global i32 0, align 4 425 // GNU-DAG: @PrecedenceGlobal2B = dllexport global i32 0, align 4 426 __attribute__((dllexport, dllimport)) int PrecedenceGlobal2A; // dllimport ignored 427 __declspec(dllexport) __declspec(dllimport) int PrecedenceGlobal2B; // dllimport ignored 428 429 // MSC-DAG: @"\01?PrecedenceGlobalRedecl1@@3HA" = dllexport global i32 0, align 4 430 // GNU-DAG: @PrecedenceGlobalRedecl1 = dllexport global i32 0, align 4 431 __declspec(dllexport) extern int PrecedenceGlobalRedecl1; 432 __declspec(dllimport) int PrecedenceGlobalRedecl1 = 0; 433 434 // MSC-DAG: @"\01?PrecedenceGlobalRedecl2@@3HA" = dllexport global i32 0, align 4 435 // GNU-DAG: @PrecedenceGlobalRedecl2 = dllexport global i32 0, align 4 436 __declspec(dllimport) extern int PrecedenceGlobalRedecl2; 437 __declspec(dllexport) int PrecedenceGlobalRedecl2; 438 439 // MSC-DAG: @"\01?PrecedenceGlobalMixed1@@3HA" = dllexport global i32 0, align 4 440 // GNU-DAG: @PrecedenceGlobalMixed1 = dllexport global i32 0, align 4 441 __attribute__((dllexport)) extern int PrecedenceGlobalMixed1; 442 __declspec(dllimport) int PrecedenceGlobalMixed1 = 0; 443 444 // MSC-DAG: @"\01?PrecedenceGlobalMixed2@@3HA" = dllexport global i32 0, align 4 445 // GNU-DAG: @PrecedenceGlobalMixed2 = dllexport global i32 0, align 4 446 __attribute__((dllimport)) extern int PrecedenceGlobalMixed2; 447 __declspec(dllexport) int PrecedenceGlobalMixed2; 448 449 // MSC-DAG: define dllexport void @"\01?precedence1A@@YAXXZ" 450 // MSC-DAG: define dllexport void @"\01?precedence1B@@YAXXZ" 451 // GNU-DAG: define dllexport void @_Z12precedence1Av() 452 // GNU-DAG: define dllexport void @_Z12precedence1Bv() 453 void __attribute__((dllimport, dllexport)) precedence1A() {} 454 void __declspec(dllimport) __declspec(dllexport) precedence1B() {} 455 456 // MSC-DAG: define dllexport void @"\01?precedence2A@@YAXXZ" 457 // MSC-DAG: define dllexport void @"\01?precedence2B@@YAXXZ" 458 // GNU-DAG: define dllexport void @_Z12precedence2Av() 459 // GNU-DAG: define dllexport void @_Z12precedence2Bv() 460 void __attribute__((dllexport, dllimport)) precedence2A() {} 461 void __declspec(dllexport) __declspec(dllimport) precedence2B() {} 462 463 // MSC-DAG: define dllexport void @"\01?precedenceRedecl1@@YAXXZ" 464 // GNU-DAG: define dllexport void @_Z17precedenceRedecl1v() 465 void __declspec(dllimport) precedenceRedecl1(); 466 void __declspec(dllexport) precedenceRedecl1() {} 467 468 // MSC-DAG: define dllexport void @"\01?precedenceRedecl2@@YAXXZ" 469 // GNU-DAG: define dllexport void @_Z17precedenceRedecl2v() 470 void __declspec(dllexport) precedenceRedecl2(); 471 void __declspec(dllimport) precedenceRedecl2() {} 472 473 474 475 //===----------------------------------------------------------------------===// 476 // Classes 477 //===----------------------------------------------------------------------===// 478 479 struct S { 480 void __declspec(dllexport) a() {} 481 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?a@S@@QAEXXZ" 482 483 struct T { 484 void __declspec(dllexport) a() {} 485 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?a@T@S@@QAEXXZ" 486 }; 487 }; 488 489 490 struct __declspec(dllexport) T { 491 // Copy assignment operator: 492 // M32-DAG: define weak_odr dllexport x86_thiscallcc nonnull %struct.T* @"\01??4T@@QAEAAU0@ABU0@@Z" 493 494 // Explicitly defaulted copy constructur: 495 T(const T&) = default; 496 // M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.T* @"\01??0T@@QAE@ABU0@@Z" 497 498 void a() {} 499 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?a@T@@QAEXXZ" 500 501 static int b; 502 // M32-DAG: @"\01?b@T@@2HA" = external dllexport global i32 503 504 static int c; 505 // M32-DAG: @"\01?c@T@@2HA" = dllexport global i32 0, align 4 506 }; 507 508 USEVAR(T::b) 509 int T::c; 510 511 template <typename T> struct __declspec(dllexport) U { void foo() {} }; 512 // The U<int> specialization below must cause the following to be emitted: 513 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?foo@?$U@H@@QAEXXZ" 514 // M32-DAG: define weak_odr dllexport x86_thiscallcc nonnull %struct.U* @"\01??4?$U@H@@QAEAAU0@ABU0@@Z" 515 struct __declspec(dllexport) V : public U<int> { }; 516 517 518 struct __declspec(dllexport) W { virtual void foo() {} }; 519 // Default ctor: 520 // M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.W* @"\01??0W@@QAE@XZ" 521 // Copy ctor: 522 // M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.W* @"\01??0W@@QAE@ABU0@@Z" 523 // vftable: 524 // 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@" 525 // M32-DAG: @"\01??_7W@@6B@" = dllexport unnamed_addr alias getelementptr inbounds ([2 x i8*]* [[W_VTABLE]], i32 0, i32 1) 526 // G32-DAG: @_ZTV1W = weak_odr dllexport unnamed_addr constant [3 x i8*] [i8* null, i8* bitcast ({ i8*, i8* }* @_ZTI1W to i8*), i8* bitcast (void (%struct.W*)* @_ZN1W3fooEv to i8*)] 527 528 struct __declspec(dllexport) X : public virtual W {}; 529 // vbtable: 530 // M32-DAG: @"\01??_8X@@7B@" = weak_odr dllexport unnamed_addr constant [2 x i32] [i32 0, i32 4] 531 532 struct __declspec(dllexport) Y { 533 // Move assignment operator: 534 // M32-DAG: define weak_odr dllexport x86_thiscallcc nonnull %struct.Y* @"\01??4Y@@QAEAAU0@$$QAU0@@Z" 535 536 int x; 537 }; 538 539 struct __declspec(dllexport) Z { virtual ~Z() {} }; 540 // The scalar deleting dtor does not get exported: 541 // M32-DAG: define linkonce_odr x86_thiscallcc void @"\01??_GZ@@UAEPAXI@Z" 542 543 544 // The user-defined dtor does get exported: 545 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01??1Z@@UAE@XZ" 546 547 namespace DontUseDtorAlias { 548 struct __declspec(dllexport) A { ~A(); }; 549 struct __declspec(dllexport) B : A { ~B(); }; 550 A::~A() { } 551 B::~B() { } 552 // Emit a real definition of B's constructor; don't alias it to A's. 553 // M32-DAG: define dllexport x86_thiscallcc void @"\01??1B@DontUseDtorAlias@@QAE@XZ" 554 } 555 556 struct __declspec(dllexport) DefaultedCtorsDtors { 557 DefaultedCtorsDtors() = default; 558 // M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.DefaultedCtorsDtors* @"\01??0DefaultedCtorsDtors@@QAE@XZ" 559 ~DefaultedCtorsDtors() = default; 560 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01??1DefaultedCtorsDtors@@QAE@XZ" 561 }; 562 563 namespace ReferencedInlineMethodInNestedClass { 564 struct __declspec(dllexport) S { 565 void foo() { 566 t->bar(); 567 } 568 struct T { 569 void bar() {} 570 }; 571 T *t; 572 }; 573 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?foo@S@ReferencedInlineMethodInNestedClass@@QAEXXZ" 574 // M32-DAG: define linkonce_odr x86_thiscallcc void @"\01?bar@T@S@ReferencedInlineMethodInNestedClass@@QAEXXZ" 575 } 576 577 // MS ignores DLL attributes on partial specializations. 578 template <typename T> struct PartiallySpecializedClassTemplate {}; 579 template <typename T> struct __declspec(dllexport) PartiallySpecializedClassTemplate<T*> { void f() {} }; 580 USEMEMFUNC(PartiallySpecializedClassTemplate<void*>, f); 581 // M32-DAG: define linkonce_odr x86_thiscallcc void @"\01?f@?$PartiallySpecializedClassTemplate@PAX@@QAEXXZ" 582 // G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN33PartiallySpecializedClassTemplateIPvE1fEv 583 584 template <typename T> struct ExplicitlySpecializedClassTemplate {}; 585 template <> struct __declspec(dllexport) ExplicitlySpecializedClassTemplate<void*> { void f() {} }; 586 USEMEMFUNC(ExplicitlySpecializedClassTemplate<void*>, f); 587 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?f@?$ExplicitlySpecializedClassTemplate@PAX@@QAEXXZ" 588 // G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN34ExplicitlySpecializedClassTemplateIPvE1fEv 589 590 //===----------------------------------------------------------------------===// 591 // Classes with template base classes 592 //===----------------------------------------------------------------------===// 593 594 template <typename T> struct ClassTemplate { void func() {} }; 595 template <typename T> struct __declspec(dllexport) ExportedClassTemplate { void func() {} }; 596 template <typename T> struct __declspec(dllimport) ImportedClassTemplate { void func() {} }; 597 598 template <typename T> struct ExplicitlySpecializedTemplate { void func() {} }; 599 template <> struct ExplicitlySpecializedTemplate<int> { void func() {} }; 600 template <typename T> struct ExplicitlyExportSpecializedTemplate { void func() {} }; 601 template <> struct __declspec(dllexport) ExplicitlyExportSpecializedTemplate<int> { void func() {} }; 602 template <typename T> struct ExplicitlyImportSpecializedTemplate { void func() {} }; 603 template <> struct __declspec(dllimport) ExplicitlyImportSpecializedTemplate<int> { void func() {} }; 604 605 template <typename T> struct ExplicitlyInstantiatedTemplate { void func() {} }; 606 template struct ExplicitlyInstantiatedTemplate<int>; 607 template <typename T> struct ExplicitlyExportInstantiatedTemplate { void func() {} }; 608 template struct __declspec(dllexport) ExplicitlyExportInstantiatedTemplate<int>; 609 template <typename T> struct ExplicitlyImportInstantiatedTemplate { void func() {} }; 610 template struct __declspec(dllimport) ExplicitlyImportInstantiatedTemplate<int>; 611 612 613 // MS: ClassTemplate<int> gets exported. 614 struct __declspec(dllexport) DerivedFromTemplate : public ClassTemplate<int> {}; 615 USEMEMFUNC(ClassTemplate<int>, func) 616 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ClassTemplate@H@@QAEXXZ" 617 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIiE4funcEv 618 619 // ExportedTemplate is explicitly exported. 620 struct __declspec(dllexport) DerivedFromExportedTemplate : public ExportedClassTemplate<int> {}; 621 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExportedClassTemplate@H@@QAEXXZ" 622 // G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN21ExportedClassTemplateIiE4funcEv 623 624 // ImportedClassTemplate is explicitly imported. 625 struct __declspec(dllexport) DerivedFromImportedTemplate : public ImportedClassTemplate<int> {}; 626 USEMEMFUNC(ImportedClassTemplate<int>, func) 627 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$ImportedClassTemplate@H@@QAEXXZ" 628 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN21ImportedClassTemplateIiE4funcEv 629 630 // Base class already instantiated without dll attribute. 631 struct DerivedFromTemplateD : public ClassTemplate<double> {}; 632 struct __declspec(dllexport) DerivedFromTemplateD2 : public ClassTemplate<double> {}; 633 USEMEMFUNC(ClassTemplate<double>, func) 634 // M32-DAG: define linkonce_odr x86_thiscallcc void @"\01?func@?$ClassTemplate@N@@QAEXXZ" 635 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIdE4funcEv 636 637 // MS: Base class already instantiated with different dll attribute. 638 struct __declspec(dllimport) DerivedFromTemplateB : public ClassTemplate<bool> {}; 639 struct __declspec(dllexport) DerivedFromTemplateB2 : public ClassTemplate<bool> {}; 640 USEMEMFUNC(ClassTemplate<bool>, func) 641 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$ClassTemplate@_N@@QAEXXZ" 642 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIbE4funcEv 643 644 // Base class already specialized without dll attribute. 645 struct __declspec(dllexport) DerivedFromExplicitlySpecializedTemplate : public ExplicitlySpecializedTemplate<int> {}; 646 USEMEMFUNC(ExplicitlySpecializedTemplate<int>, func) 647 // M32-DAG: define linkonce_odr x86_thiscallcc void @"\01?func@?$ExplicitlySpecializedTemplate@H@@QAEXXZ" 648 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN29ExplicitlySpecializedTemplateIiE4funcEv 649 650 // Base class alredy specialized with export attribute. 651 struct __declspec(dllexport) DerivedFromExplicitlyExportSpecializedTemplate : public ExplicitlyExportSpecializedTemplate<int> {}; 652 USEMEMFUNC(ExplicitlyExportSpecializedTemplate<int>, func) 653 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExplicitlyExportSpecializedTemplate@H@@QAEXXZ" 654 // G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN35ExplicitlyExportSpecializedTemplateIiE4funcEv 655 656 // Base class already specialized with import attribute. 657 struct __declspec(dllexport) DerivedFromExplicitlyImportSpecializedTemplate : public ExplicitlyImportSpecializedTemplate<int> {}; 658 USEMEMFUNC(ExplicitlyImportSpecializedTemplate<int>, func) 659 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$ExplicitlyImportSpecializedTemplate@H@@QAEXXZ" 660 // G32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @_ZN35ExplicitlyImportSpecializedTemplateIiE4funcEv 661 662 // Base class already instantiated without dll attribute. 663 struct __declspec(dllexport) DerivedFromExplicitlyInstantiatedTemplate : public ExplicitlyInstantiatedTemplate<int> {}; 664 USEMEMFUNC(ExplicitlyInstantiatedTemplate<int>, func) 665 // M32-DAG: define weak_odr x86_thiscallcc void @"\01?func@?$ExplicitlyInstantiatedTemplate@H@@QAEXXZ" 666 // G32-DAG: define weak_odr x86_thiscallcc void @_ZN30ExplicitlyInstantiatedTemplateIiE4funcEv 667 668 // Base class already instantiated with export attribute. 669 struct __declspec(dllexport) DerivedFromExplicitlyExportInstantiatedTemplate : public ExplicitlyExportInstantiatedTemplate<int> {}; 670 USEMEMFUNC(ExplicitlyExportInstantiatedTemplate<int>, func) 671 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExplicitlyExportInstantiatedTemplate@H@@QAEXXZ" 672 // G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN36ExplicitlyExportInstantiatedTemplateIiE4funcEv 673 674 // Base class already instantiated with import attribute. 675 struct __declspec(dllexport) DerivedFromExplicitlyImportInstantiatedTemplate : public ExplicitlyImportInstantiatedTemplate<int> {}; 676 USEMEMFUNC(ExplicitlyImportInstantiatedTemplate<int>, func) 677 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$ExplicitlyImportInstantiatedTemplate@H@@QAEXXZ" 678 // G32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @_ZN36ExplicitlyImportInstantiatedTemplateIiE4funcEv 679 680 // MS: A dll attribute propagates through multiple levels of instantiation. 681 template <typename T> struct TopClass { void func() {} }; 682 template <typename T> struct MiddleClass : public TopClass<T> { }; 683 struct __declspec(dllexport) BottomClas : public MiddleClass<int> { }; 684 USEMEMFUNC(TopClass<int>, func) 685 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$TopClass@H@@QAEXXZ" 686 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN8TopClassIiE4funcEv 687
