1 // RUN: %clang_cc1 -triple i686-windows-msvc -fno-rtti -emit-llvm -std=c++1y -O0 -o - %s -DMSABI -w | FileCheck --check-prefix=MSC --check-prefix=M32 %s 2 // RUN: %clang_cc1 -triple x86_64-windows-msvc -fno-rtti -emit-llvm -std=c++1y -O0 -o - %s -DMSABI -w | FileCheck --check-prefix=MSC --check-prefix=M64 %s 3 // RUN: %clang_cc1 -triple i686-windows-gnu -fno-rtti -emit-llvm -std=c++1y -O0 -o - %s -w | FileCheck --check-prefix=GNU --check-prefix=G32 %s 4 // RUN: %clang_cc1 -triple x86_64-windows-gnu -fno-rtti -emit-llvm -std=c++1y -O0 -o - %s -w | FileCheck --check-prefix=GNU --check-prefix=G64 %s 5 // RUN: %clang_cc1 -triple i686-windows-msvc -fno-rtti -emit-llvm -std=c++1y -O1 -o - %s -DMSABI -w | FileCheck --check-prefix=MO1 %s 6 // RUN: %clang_cc1 -triple i686-windows-gnu -fno-rtti -emit-llvm -std=c++1y -O1 -o - %s -w | FileCheck --check-prefix=GO1 %s 7 8 // CHECK-NOT doesn't play nice with CHECK-DAG, so use separate run lines. 9 // RUN: %clang_cc1 -triple i686-windows-msvc -fno-rtti -emit-llvm -std=c++1y -O0 -o - %s -DMSABI -w | FileCheck --check-prefix=MSC2 %s 10 // RUN: %clang_cc1 -triple i686-windows-gnu -fno-rtti -emit-llvm -std=c++1y -O0 -o - %s -w | FileCheck --check-prefix=GNU2 %s 11 12 // Helper structs to make templates more expressive. 13 struct ImplicitInst_Imported {}; 14 struct ImplicitInst_NotImported {}; 15 struct ExplicitDecl_Imported {}; 16 struct ExplicitInst_Imported {}; 17 struct ExplicitSpec_Imported {}; 18 struct ExplicitSpec_Def_Imported {}; 19 struct ExplicitSpec_InlineDef_Imported {}; 20 struct ExplicitSpec_NotImported {}; 21 22 #define JOIN2(x, y) x##y 23 #define JOIN(x, y) JOIN2(x, y) 24 #define UNIQ(name) JOIN(name, __LINE__) 25 #define USEVARTYPE(type, var) type UNIQ(use)() { return var; } 26 #define USEVAR(var) USEVARTYPE(int, var) 27 #define USE(func) void UNIQ(use)() { func(); } 28 #define USEMEMFUNC(class, func) void (class::*UNIQ(use)())() { return &class::func; } 29 #define USECLASS(class) void UNIQ(USE)() { class x; } 30 #define USECOPYASSIGN(class) class& (class::*UNIQ(use)())(class&) { return &class::operator=; } 31 #define USEMOVEASSIGN(class) class& (class::*UNIQ(use)())(class&&) { return &class::operator=; } 32 33 //===----------------------------------------------------------------------===// 34 // Globals 35 //===----------------------------------------------------------------------===// 36 37 // Import declaration. 38 // MSC-DAG: @"\01?ExternGlobalDecl@@3HA" = external dllimport global i32 39 // GNU-DAG: @ExternGlobalDecl = external dllimport global i32 40 __declspec(dllimport) extern int ExternGlobalDecl; 41 USEVAR(ExternGlobalDecl) 42 43 // dllimport implies a declaration. 44 // MSC-DAG: @"\01?GlobalDecl@@3HA" = external dllimport global i32 45 // GNU-DAG: @GlobalDecl = external dllimport global i32 46 __declspec(dllimport) int GlobalDecl; 47 USEVAR(GlobalDecl) 48 49 // Redeclarations 50 // MSC-DAG: @"\01?GlobalRedecl1@@3HA" = external dllimport global i32 51 // GNU-DAG: @GlobalRedecl1 = external dllimport global i32 52 __declspec(dllimport) extern int GlobalRedecl1; 53 __declspec(dllimport) extern int GlobalRedecl1; 54 USEVAR(GlobalRedecl1) 55 56 // MSC-DAG: @"\01?GlobalRedecl2a@@3HA" = external dllimport global i32 57 // GNU-DAG: @GlobalRedecl2a = external dllimport global i32 58 __declspec(dllimport) int GlobalRedecl2a; 59 __declspec(dllimport) int GlobalRedecl2a; 60 USEVAR(GlobalRedecl2a) 61 62 // M32-DAG: @"\01?GlobalRedecl2b@@3PAHA" = external dllimport global i32* 63 // M64-DAG: @"\01?GlobalRedecl2b@@3PEAHEA" = external dllimport global i32* 64 // GNU-DAG: @GlobalRedecl2b = external dllimport global i32* 65 int *__attribute__((dllimport)) GlobalRedecl2b; 66 int *__attribute__((dllimport)) GlobalRedecl2b; 67 USEVARTYPE(int*, GlobalRedecl2b) 68 69 // MSC-DAG: @"\01?GlobalRedecl2c@@3HA" = external dllimport global i32 70 // GNU-DAG: @GlobalRedecl2c = external dllimport global i32 71 int GlobalRedecl2c __attribute__((dllimport)); 72 int GlobalRedecl2c __attribute__((dllimport)); 73 USEVAR(GlobalRedecl2c) 74 75 // NB: MSC issues a warning and makes GlobalRedecl3 dllexport. We follow GCC 76 // and drop the dllimport with a warning. 77 // MSC-DAG: @"\01?GlobalRedecl3@@3HA" = external global i32 78 // GNU-DAG: @GlobalRedecl3 = external global i32 79 __declspec(dllimport) extern int GlobalRedecl3; 80 extern int GlobalRedecl3; // dllimport ignored 81 USEVAR(GlobalRedecl3) 82 83 // MSC-DAG: @"\01?ExternalGlobal@ns@@3HA" = external dllimport global i32 84 // GNU-DAG: @_ZN2ns14ExternalGlobalE = external dllimport global i32 85 namespace ns { __declspec(dllimport) int ExternalGlobal; } 86 USEVAR(ns::ExternalGlobal) 87 88 int f(); 89 // MO1-DAG: @"\01?x@?1??inlineStaticLocalsFunc@@YAHXZ@4HA" = available_externally dllimport global i32 0 90 // MO1-DAG: @"\01??_B?1??inlineStaticLocalsFunc@@YAHXZ@51" = available_externally dllimport global i32 0 91 inline int __declspec(dllimport) inlineStaticLocalsFunc() { 92 static int x = f(); 93 return x++; 94 }; 95 USE(inlineStaticLocalsFunc); 96 97 // The address of a dllimport global cannot be used in constant initialization. 98 // M32-DAG: @"\01?arr@?1??initializationFunc@@YAPAHXZ@4QBQAHB" = internal global [1 x i32*] zeroinitializer 99 // GNU-DAG: @_ZZ18initializationFuncvE3arr = internal global [1 x i32*] zeroinitializer 100 int *initializationFunc() { 101 static int *const arr[] = {&ExternGlobalDecl}; 102 return arr[0]; 103 } 104 USE(initializationFunc); 105 106 107 //===----------------------------------------------------------------------===// 108 // Variable templates 109 //===----------------------------------------------------------------------===// 110 111 // Import declaration. 112 // MSC-DAG: @"\01??$ExternVarTmplDecl@UImplicitInst_Imported@@@@3HA" = external dllimport global i32 113 // GNU-DAG: @_Z17ExternVarTmplDeclI21ImplicitInst_ImportedE = external dllimport global i32 114 template<typename T> __declspec(dllimport) extern int ExternVarTmplDecl; 115 USEVAR(ExternVarTmplDecl<ImplicitInst_Imported>) 116 117 // dllimport implies a declaration. 118 // MSC-DAG: @"\01??$VarTmplDecl@UImplicitInst_Imported@@@@3HA" = external dllimport global i32 119 // GNU-DAG: @_Z11VarTmplDeclI21ImplicitInst_ImportedE = external dllimport global i32 120 template<typename T> __declspec(dllimport) int VarTmplDecl; 121 USEVAR(VarTmplDecl<ImplicitInst_Imported>) 122 123 // Redeclarations 124 // MSC-DAG: @"\01??$VarTmplRedecl1@UImplicitInst_Imported@@@@3HA" = external dllimport global i32 125 // GNU-DAG: @_Z14VarTmplRedecl1I21ImplicitInst_ImportedE = external dllimport global i32 126 template<typename T> __declspec(dllimport) extern int VarTmplRedecl1; 127 template<typename T> __declspec(dllimport) extern int VarTmplRedecl1; 128 USEVAR(VarTmplRedecl1<ImplicitInst_Imported>) 129 130 // MSC-DAG: @"\01??$VarTmplRedecl2@UImplicitInst_Imported@@@@3HA" = external dllimport global i32 131 // GNU-DAG: @_Z14VarTmplRedecl2I21ImplicitInst_ImportedE = external dllimport global i32 132 template<typename T> __declspec(dllimport) int VarTmplRedecl2; 133 template<typename T> __declspec(dllimport) int VarTmplRedecl2; 134 USEVAR(VarTmplRedecl2<ImplicitInst_Imported>) 135 136 // MSC-DAG: @"\01??$VarTmplRedecl3@UImplicitInst_Imported@@@@3HA" = external global i32 137 // GNU-DAG: @_Z14VarTmplRedecl3I21ImplicitInst_ImportedE = external global i32 138 template<typename T> __declspec(dllimport) extern int VarTmplRedecl3; 139 template<typename T> extern int VarTmplRedecl3; // dllimport ignored 140 USEVAR(VarTmplRedecl3<ImplicitInst_Imported>) 141 142 143 // MSC-DAG: @"\01??$ExternalVarTmpl@UImplicitInst_Imported@@@ns@@3HA" = external dllimport global i32 144 // GNU-DAG: @_ZN2ns15ExternalVarTmplI21ImplicitInst_ImportedEE = external dllimport global i32 145 namespace ns { template<typename T> __declspec(dllimport) int ExternalVarTmpl; } 146 USEVAR(ns::ExternalVarTmpl<ImplicitInst_Imported>) 147 148 149 template<typename T> int VarTmpl; 150 template<typename T> __declspec(dllimport) int ImportedVarTmpl; 151 152 // Import implicit instantiation of an imported variable template. 153 // MSC-DAG: @"\01??$ImportedVarTmpl@UImplicitInst_Imported@@@@3HA" = external dllimport global i32 154 // GNU-DAG: @_Z15ImportedVarTmplI21ImplicitInst_ImportedE = external dllimport global i32 155 USEVAR(ImportedVarTmpl<ImplicitInst_Imported>) 156 157 // Import explicit instantiation declaration of an imported variable template. 158 // MSC-DAG: @"\01??$ImportedVarTmpl@UExplicitDecl_Imported@@@@3HA" = external dllimport global i32 159 // GNU-DAG: @_Z15ImportedVarTmplI21ExplicitDecl_ImportedE = external dllimport global i32 160 extern template int ImportedVarTmpl<ExplicitDecl_Imported>; 161 USEVAR(ImportedVarTmpl<ExplicitDecl_Imported>) 162 163 // An explicit instantiation definition of an imported variable template cannot 164 // be imported because the template must be defined which is illegal. 165 166 // Import specialization of an imported variable template. 167 // MSC-DAG: @"\01??$ImportedVarTmpl@UExplicitSpec_Imported@@@@3HA" = external dllimport global i32 168 // GNU-DAG: @_Z15ImportedVarTmplI21ExplicitSpec_ImportedE = external dllimport global i32 169 template<> __declspec(dllimport) int ImportedVarTmpl<ExplicitSpec_Imported>; 170 USEVAR(ImportedVarTmpl<ExplicitSpec_Imported>) 171 172 // Not importing specialization of an imported variable template without 173 // explicit dllimport. 174 // MSC-DAG: @"\01??$ImportedVarTmpl@UExplicitSpec_NotImported@@@@3HA" = global i32 0, align 4 175 // GNU-DAG: @_Z15ImportedVarTmplI24ExplicitSpec_NotImportedE = global i32 0, align 4 176 template<> int ImportedVarTmpl<ExplicitSpec_NotImported>; 177 USEVAR(ImportedVarTmpl<ExplicitSpec_NotImported>) 178 179 // Import explicit instantiation declaration of a non-imported variable template. 180 // MSC-DAG: @"\01??$VarTmpl@UExplicitDecl_Imported@@@@3HA" = external dllimport global i32 181 // GNU-DAG: @_Z7VarTmplI21ExplicitDecl_ImportedE = external dllimport global i32 182 extern template __declspec(dllimport) int VarTmpl<ExplicitDecl_Imported>; 183 USEVAR(VarTmpl<ExplicitDecl_Imported>) 184 185 // Import explicit instantiation definition of a non-imported variable template. 186 // MSC-DAG: @"\01??$VarTmpl@UExplicitInst_Imported@@@@3HA" = external dllimport global i32 187 // GNU-DAG: @_Z7VarTmplI21ExplicitInst_ImportedE = external dllimport global i32 188 template __declspec(dllimport) int VarTmpl<ExplicitInst_Imported>; 189 USEVAR(VarTmpl<ExplicitInst_Imported>) 190 191 // Import specialization of a non-imported variable template. 192 // MSC-DAG: @"\01??$VarTmpl@UExplicitSpec_Imported@@@@3HA" = external dllimport global i32 193 // GNU-DAG: @_Z7VarTmplI21ExplicitSpec_ImportedE = external dllimport global i32 194 template<> __declspec(dllimport) int VarTmpl<ExplicitSpec_Imported>; 195 USEVAR(VarTmpl<ExplicitSpec_Imported>) 196 197 198 199 //===----------------------------------------------------------------------===// 200 // Functions 201 //===----------------------------------------------------------------------===// 202 203 // Import function declaration. 204 // MSC-DAG: declare dllimport void @"\01?decl@@YAXXZ"() 205 // GNU-DAG: declare dllimport void @_Z4declv() 206 __declspec(dllimport) void decl(); 207 USE(decl) 208 209 // extern "C" 210 // MSC-DAG: declare dllimport void @externC() 211 // GNU-DAG: declare dllimport void @externC() 212 extern "C" __declspec(dllimport) void externC(); 213 USE(externC) 214 215 // Import inline function. 216 // MSC-DAG: declare dllimport void @"\01?inlineFunc@@YAXXZ"() 217 // GNU-DAG: define linkonce_odr void @_Z10inlineFuncv() 218 // MO1-DAG: define available_externally dllimport void @"\01?inlineFunc@@YAXXZ"() 219 // GO1-DAG: define linkonce_odr void @_Z10inlineFuncv() 220 __declspec(dllimport) inline void inlineFunc() {} 221 USE(inlineFunc) 222 223 // MSC-DAG: declare dllimport void @"\01?inlineDecl@@YAXXZ"() 224 // GNU-DAG: define linkonce_odr void @_Z10inlineDeclv() 225 // MO1-DAG: define available_externally dllimport void @"\01?inlineDecl@@YAXXZ"() 226 // GO1-DAG: define linkonce_odr void @_Z10inlineDeclv() 227 __declspec(dllimport) inline void inlineDecl(); 228 void inlineDecl() {} 229 USE(inlineDecl) 230 231 // MSC-DAG: declare dllimport void @"\01?inlineDef@@YAXXZ"() 232 // GNU-DAG: define linkonce_odr void @_Z9inlineDefv() 233 // MO1-DAG: define available_externally dllimport void @"\01?inlineDef@@YAXXZ"() 234 // GO1-DAG: define linkonce_odr void @_Z9inlineDefv() 235 __declspec(dllimport) void inlineDef(); 236 inline void inlineDef() {} 237 USE(inlineDef) 238 239 // inline attributes 240 // MSC-DAG: declare dllimport void @"\01?noinline@@YAXXZ"() 241 // GNU-DAG: define linkonce_odr void @_Z8noinlinev() 242 __declspec(dllimport) __attribute__((noinline)) inline void noinline() {} 243 USE(noinline) 244 245 // MSC2-NOT: @"\01?alwaysInline@@YAXXZ"() 246 // GNU-DAG: define linkonce_odr void @_Z12alwaysInlinev() {{.*}} comdat { 247 __declspec(dllimport) __attribute__((always_inline)) inline void alwaysInline() {} 248 USE(alwaysInline) 249 250 // Redeclarations 251 // MSC-DAG: declare dllimport void @"\01?redecl1@@YAXXZ"() 252 // GNU-DAG: declare dllimport void @_Z7redecl1v() 253 __declspec(dllimport) void redecl1(); 254 __declspec(dllimport) void redecl1(); 255 USE(redecl1) 256 257 // NB: MSC issues a warning and makes redecl2/redecl3 dllexport. We follow GCC 258 // and drop the dllimport with a warning. 259 // MSC-DAG: declare void @"\01?redecl2@@YAXXZ"() 260 // GNU-DAG: declare void @_Z7redecl2v() 261 __declspec(dllimport) void redecl2(); 262 void redecl2(); 263 USE(redecl2) 264 265 // MSC-DAG: define void @"\01?redecl3@@YAXXZ"() 266 // GNU-DAG: define void @_Z7redecl3v() 267 __declspec(dllimport) void redecl3(); 268 void redecl3() {} // dllimport ignored 269 USE(redecl3) 270 271 272 // Friend functions 273 // MSC-DAG: declare dllimport void @"\01?friend1@@YAXXZ"() 274 // GNU-DAG: declare dllimport void @_Z7friend1v() 275 // MSC-DAG: declare void @"\01?friend2@@YAXXZ"() 276 // GNU-DAG: declare void @_Z7friend2v() 277 // MSC-DAG: define void @"\01?friend3@@YAXXZ"() 278 // GNU-DAG: define void @_Z7friend3v() 279 // MSC-DAG: declare void @"\01?friend4@@YAXXZ"() 280 // GNU-DAG: declare void @_Z7friend4v() 281 // MSC-DAG: declare dllimport void @"\01?friend5@@YAXXZ"() 282 // GNU-DAG: declare dllimport void @_Z7friend5v() 283 284 struct FuncFriend { 285 friend __declspec(dllimport) void friend1(); 286 friend __declspec(dllimport) void friend2(); 287 friend __declspec(dllimport) void friend3(); 288 }; 289 __declspec(dllimport) void friend1(); 290 void friend2(); // dllimport ignored 291 void friend3() {} // dllimport ignored 292 293 __declspec(dllimport) void friend4(); 294 __declspec(dllimport) void friend5(); 295 struct FuncFriendRedecl { 296 friend void friend4(); // dllimport ignored 297 friend void ::friend5(); 298 }; 299 USE(friend1) 300 USE(friend2) 301 USE(friend3) 302 USE(friend4) 303 USE(friend5) 304 305 // Implicit declarations can be redeclared with dllimport. 306 // MSC-DAG: declare dllimport noalias i8* @"\01??2@{{YAPAXI|YAPEAX_K}}@Z"( 307 // GNU-DAG: declare dllimport noalias i8* @_Znw{{[yj]}}( 308 __declspec(dllimport) void* operator new(__SIZE_TYPE__ n); 309 void UNIQ(use)() { ::operator new(42); } 310 311 // MSC-DAG: declare dllimport void @"\01?externalFunc@ns@@YAXXZ"() 312 // GNU-DAG: declare dllimport void @_ZN2ns12externalFuncEv() 313 namespace ns { __declspec(dllimport) void externalFunc(); } 314 USE(ns::externalFunc) 315 316 317 318 //===----------------------------------------------------------------------===// 319 // Function templates 320 //===----------------------------------------------------------------------===// 321 322 // Import function template declaration. 323 // MSC-DAG: declare dllimport void @"\01??$funcTmplDecl@UImplicitInst_Imported@@@@YAXXZ"() 324 // GNU-DAG: declare dllimport void @_Z12funcTmplDeclI21ImplicitInst_ImportedEvv() 325 template<typename T> __declspec(dllimport) void funcTmplDecl(); 326 USE(funcTmplDecl<ImplicitInst_Imported>) 327 328 // Function template definitions cannot be imported. 329 330 // Import inline function template. 331 // MSC-DAG: declare dllimport void @"\01??$inlineFuncTmpl1@UImplicitInst_Imported@@@@YAXXZ"() 332 // GNU-DAG: define linkonce_odr void @_Z15inlineFuncTmpl1I21ImplicitInst_ImportedEvv() 333 // MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmpl1@UImplicitInst_Imported@@@@YAXXZ"() 334 // GO1-DAG: define linkonce_odr void @_Z15inlineFuncTmpl1I21ImplicitInst_ImportedEvv() 335 template<typename T> __declspec(dllimport) inline void inlineFuncTmpl1() {} 336 USE(inlineFuncTmpl1<ImplicitInst_Imported>) 337 338 // MSC-DAG: declare dllimport void @"\01??$inlineFuncTmpl2@UImplicitInst_Imported@@@@YAXXZ"() 339 // GNU-DAG: define linkonce_odr void @_Z15inlineFuncTmpl2I21ImplicitInst_ImportedEvv() 340 // MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmpl2@UImplicitInst_Imported@@@@YAXXZ"() 341 // GO1-DAG: define linkonce_odr void @_Z15inlineFuncTmpl2I21ImplicitInst_ImportedEvv() 342 template<typename T> inline void __attribute__((dllimport)) inlineFuncTmpl2() {} 343 USE(inlineFuncTmpl2<ImplicitInst_Imported>) 344 345 // MSC-DAG: declare dllimport void @"\01??$inlineFuncTmplDecl@UImplicitInst_Imported@@@@YAXXZ"() 346 // GNU-DAG: define linkonce_odr void @_Z18inlineFuncTmplDeclI21ImplicitInst_ImportedEvv() 347 // MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmplDecl@UImplicitInst_Imported@@@@YAXXZ"() 348 // GO1-DAG: define linkonce_odr void @_Z18inlineFuncTmplDeclI21ImplicitInst_ImportedEvv() 349 template<typename T> __declspec(dllimport) inline void inlineFuncTmplDecl(); 350 template<typename T> void inlineFuncTmplDecl() {} 351 USE(inlineFuncTmplDecl<ImplicitInst_Imported>) 352 353 // MSC-DAG: declare dllimport void @"\01??$inlineFuncTmplDef@UImplicitInst_Imported@@@@YAXXZ"() 354 // GNU-DAG: define linkonce_odr void @_Z17inlineFuncTmplDefI21ImplicitInst_ImportedEvv() 355 // MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmplDef@UImplicitInst_Imported@@@@YAXXZ"() 356 // GO1-DAG: define linkonce_odr void @_Z17inlineFuncTmplDefI21ImplicitInst_ImportedEvv() 357 template<typename T> __declspec(dllimport) void inlineFuncTmplDef(); 358 template<typename T> inline void inlineFuncTmplDef() {} 359 USE(inlineFuncTmplDef<ImplicitInst_Imported>) 360 361 362 // Redeclarations 363 // MSC-DAG: declare dllimport void @"\01??$funcTmplRedecl1@UImplicitInst_Imported@@@@YAXXZ"() 364 // GNU-DAG: declare dllimport void @_Z15funcTmplRedecl1I21ImplicitInst_ImportedEvv() 365 template<typename T> __declspec(dllimport) void funcTmplRedecl1(); 366 template<typename T> __declspec(dllimport) void funcTmplRedecl1(); 367 USE(funcTmplRedecl1<ImplicitInst_Imported>) 368 369 // MSC-DAG: declare void @"\01??$funcTmplRedecl2@UImplicitInst_NotImported@@@@YAXXZ"() 370 // GNU-DAG: declare void @_Z15funcTmplRedecl2I24ImplicitInst_NotImportedEvv() 371 template<typename T> __declspec(dllimport) void funcTmplRedecl2(); 372 template<typename T> void funcTmplRedecl2(); // dllimport ignored 373 USE(funcTmplRedecl2<ImplicitInst_NotImported>) 374 375 // MSC-DAG: define linkonce_odr void @"\01??$funcTmplRedecl3@UImplicitInst_NotImported@@@@YAXXZ"() 376 // GNU-DAG: define linkonce_odr void @_Z15funcTmplRedecl3I24ImplicitInst_NotImportedEvv() 377 template<typename T> __declspec(dllimport) void funcTmplRedecl3(); 378 template<typename T> void funcTmplRedecl3() {} // dllimport ignored 379 USE(funcTmplRedecl3<ImplicitInst_NotImported>) 380 381 382 // Function template friends 383 // MSC-DAG: declare dllimport void @"\01??$funcTmplFriend1@UImplicitInst_Imported@@@@YAXXZ"() 384 // GNU-DAG: declare dllimport void @_Z15funcTmplFriend1I21ImplicitInst_ImportedEvv() 385 // MSC-DAG: declare void @"\01??$funcTmplFriend2@UImplicitInst_NotImported@@@@YAXXZ"() 386 // GNU-DAG: declare void @_Z15funcTmplFriend2I24ImplicitInst_NotImportedEvv() 387 // MSC-DAG: define linkonce_odr void @"\01??$funcTmplFriend3@UImplicitInst_NotImported@@@@YAXXZ"() 388 // GNU-DAG: define linkonce_odr void @_Z15funcTmplFriend3I24ImplicitInst_NotImportedEvv() 389 // MSC-DAG: declare dllimport void @"\01??$funcTmplFriend4@UImplicitInst_Imported@@@@YAXXZ"() 390 // GNU-DAG: define linkonce_odr void @_Z15funcTmplFriend4I21ImplicitInst_ImportedEvv() 391 struct FuncTmplFriend { 392 template<typename T> friend __declspec(dllimport) void funcTmplFriend1(); 393 template<typename T> friend __declspec(dllimport) void funcTmplFriend2(); 394 template<typename T> friend __declspec(dllimport) void funcTmplFriend3(); 395 template<typename T> friend __declspec(dllimport) inline void funcTmplFriend4(); 396 }; 397 template<typename T> __declspec(dllimport) void funcTmplFriend1(); 398 template<typename T> void funcTmplFriend2(); // dllimport ignored 399 template<typename T> void funcTmplFriend3() {} // dllimport ignored 400 template<typename T> inline void funcTmplFriend4() {} 401 USE(funcTmplFriend1<ImplicitInst_Imported>) 402 USE(funcTmplFriend2<ImplicitInst_NotImported>) 403 USE(funcTmplFriend3<ImplicitInst_NotImported>) 404 USE(funcTmplFriend4<ImplicitInst_Imported>) 405 406 // MSC-DAG: declare dllimport void @"\01??$externalFuncTmpl@UImplicitInst_Imported@@@ns@@YAXXZ"() 407 // GNU-DAG: declare dllimport void @_ZN2ns16externalFuncTmplI21ImplicitInst_ImportedEEvv() 408 namespace ns { template<typename T> __declspec(dllimport) void externalFuncTmpl(); } 409 USE(ns::externalFuncTmpl<ImplicitInst_Imported>) 410 411 412 template<typename T> void funcTmpl() {} 413 template<typename T> inline void inlineFuncTmpl() {} 414 template<typename T> __declspec(dllimport) void importedFuncTmplDecl(); 415 template<typename T> __declspec(dllimport) inline void importedFuncTmpl() {} 416 417 // Import implicit instantiation of an imported function template. 418 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmplDecl@UImplicitInst_Imported@@@@YAXXZ"() 419 // GNU-DAG: declare dllimport void @_Z20importedFuncTmplDeclI21ImplicitInst_ImportedEvv() 420 USE(importedFuncTmplDecl<ImplicitInst_Imported>) 421 422 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UImplicitInst_Imported@@@@YAXXZ"() 423 // GNU-DAG: define linkonce_odr void @_Z16importedFuncTmplI21ImplicitInst_ImportedEvv() 424 // MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmpl@UImplicitInst_Imported@@@@YAXXZ"() 425 // GO1-DAG: define linkonce_odr void @_Z16importedFuncTmplI21ImplicitInst_ImportedEvv() 426 USE(importedFuncTmpl<ImplicitInst_Imported>) 427 428 // Import explicit instantiation declaration of an imported function template. 429 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UExplicitDecl_Imported@@@@YAXXZ"() 430 // GNU-DAG: declare void @_Z16importedFuncTmplI21ExplicitDecl_ImportedEvv() 431 // MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmpl@UExplicitDecl_Imported@@@@YAXXZ"() 432 // GO1-DAG: define available_externally void @_Z16importedFuncTmplI21ExplicitDecl_ImportedEvv() 433 extern template void importedFuncTmpl<ExplicitDecl_Imported>(); 434 USE(importedFuncTmpl<ExplicitDecl_Imported>) 435 436 // Import explicit instantiation definition of an imported function template. 437 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UExplicitInst_Imported@@@@YAXXZ"() 438 // GNU-DAG: define weak_odr void @_Z16importedFuncTmplI21ExplicitInst_ImportedEvv() 439 // MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmpl@UExplicitInst_Imported@@@@YAXXZ"() 440 // GO1-DAG: define weak_odr void @_Z16importedFuncTmplI21ExplicitInst_ImportedEvv() 441 template void importedFuncTmpl<ExplicitInst_Imported>(); 442 USE(importedFuncTmpl<ExplicitInst_Imported>) 443 444 445 // Import specialization of an imported function template. 446 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_Imported@@@@YAXXZ"() 447 // GNU-DAG: declare dllimport void @_Z20importedFuncTmplDeclI21ExplicitSpec_ImportedEvv() 448 template<> __declspec(dllimport) void importedFuncTmplDecl<ExplicitSpec_Imported>(); 449 USE(importedFuncTmplDecl<ExplicitSpec_Imported>) 450 451 // MSC-DAG-FIXME: declare dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_Def_Imported@@@@YAXXZ"() 452 // MO1-DAG-FIXME: define available_externally dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_Def_Imported@@@@YAXXZ"() 453 #ifdef MSABI 454 //template<> __declspec(dllimport) void importedFuncTmplDecl<ExplicitSpec_Def_Imported>() {} 455 //USE(importedFuncTmplDecl<ExplicitSpec_Def_Imported>) 456 #endif 457 458 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"() 459 // GNU-DAG: define linkonce_odr void @_Z20importedFuncTmplDeclI31ExplicitSpec_InlineDef_ImportedEvv() 460 // MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"() 461 // GO1-DAG: define linkonce_odr void @_Z20importedFuncTmplDeclI31ExplicitSpec_InlineDef_ImportedEvv() 462 template<> __declspec(dllimport) inline void importedFuncTmplDecl<ExplicitSpec_InlineDef_Imported>() {} 463 USE(importedFuncTmplDecl<ExplicitSpec_InlineDef_Imported>) 464 465 466 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_Imported@@@@YAXXZ"() 467 // GNU-DAG: declare dllimport void @_Z16importedFuncTmplI21ExplicitSpec_ImportedEvv() 468 template<> __declspec(dllimport) void importedFuncTmpl<ExplicitSpec_Imported>(); 469 USE(importedFuncTmpl<ExplicitSpec_Imported>) 470 471 // MSC-DAG-FIXME: declare dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_Def_Imported@@@@YAXXZ"() 472 // MO1-DAG-FIXME: define available_externally dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_Def_Imported@@@@YAXXZ"() 473 #ifdef MSABI 474 //template<> __declspec(dllimport) void importedFuncTmpl<ExplicitSpec_Def_Imported>() {} 475 //USE(importedFuncTmpl<ExplicitSpec_Def_Imported>) 476 #endif 477 478 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"() 479 // GNU-DAG: define linkonce_odr void @_Z16importedFuncTmplI31ExplicitSpec_InlineDef_ImportedEvv() 480 // MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"() 481 // GO1-DAG: define linkonce_odr void @_Z16importedFuncTmplI31ExplicitSpec_InlineDef_ImportedEvv() 482 template<> __declspec(dllimport) inline void importedFuncTmpl<ExplicitSpec_InlineDef_Imported>() {} 483 USE(importedFuncTmpl<ExplicitSpec_InlineDef_Imported>) 484 485 486 // Not importing specialization of an imported function template without 487 // explicit dllimport. 488 // MSC-DAG: define void @"\01??$importedFuncTmpl@UExplicitSpec_NotImported@@@@YAXXZ"() 489 // GNU-DAG: define void @_Z16importedFuncTmplI24ExplicitSpec_NotImportedEvv() 490 template<> void importedFuncTmpl<ExplicitSpec_NotImported>() {} 491 USE(importedFuncTmpl<ExplicitSpec_NotImported>) 492 493 494 // Import explicit instantiation declaration of a non-imported function template. 495 // MSC-DAG: declare dllimport void @"\01??$funcTmpl@UExplicitDecl_Imported@@@@YAXXZ"() 496 // MSC-DAG: declare dllimport void @"\01??$inlineFuncTmpl@UExplicitDecl_Imported@@@@YAXXZ"() 497 // GNU-DAG: declare dllimport void @_Z8funcTmplI21ExplicitDecl_ImportedEvv() 498 // GNU-DAG: declare void @_Z14inlineFuncTmplI21ExplicitDecl_ImportedEvv() 499 // MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmpl@UExplicitDecl_Imported@@@@YAXXZ"() 500 // GO1-DAG: define available_externally void @_Z14inlineFuncTmplI21ExplicitDecl_ImportedEvv() 501 extern template __declspec(dllimport) void funcTmpl<ExplicitDecl_Imported>(); 502 extern template __declspec(dllimport) void inlineFuncTmpl<ExplicitDecl_Imported>(); 503 USE(funcTmpl<ExplicitDecl_Imported>) 504 USE(inlineFuncTmpl<ExplicitDecl_Imported>) 505 506 507 // Import explicit instantiation definition of a non-imported function template. 508 // MSC-DAG: declare dllimport void @"\01??$funcTmpl@UExplicitInst_Imported@@@@YAXXZ"() 509 // MSC-DAG: declare dllimport void @"\01??$inlineFuncTmpl@UExplicitInst_Imported@@@@YAXXZ"() 510 // GNU-DAG: declare dllimport void @_Z8funcTmplI21ExplicitInst_ImportedEvv() 511 // GNU-DAG: define weak_odr void @_Z14inlineFuncTmplI21ExplicitInst_ImportedEvv() 512 // MO1-DAG: define available_externally dllimport void @"\01??$funcTmpl@UExplicitInst_Imported@@@@YAXXZ"() 513 // MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmpl@UExplicitInst_Imported@@@@YAXXZ"() 514 // GO1-DAG: define available_externally dllimport void @_Z8funcTmplI21ExplicitInst_ImportedEvv() 515 // GO1-DAG: define weak_odr void @_Z14inlineFuncTmplI21ExplicitInst_ImportedEvv() 516 template __declspec(dllimport) void funcTmpl<ExplicitInst_Imported>(); 517 template __declspec(dllimport) void inlineFuncTmpl<ExplicitInst_Imported>(); 518 USE(funcTmpl<ExplicitInst_Imported>) 519 USE(inlineFuncTmpl<ExplicitInst_Imported>) 520 521 522 // Import specialization of a non-imported function template. 523 // MSC-DAG: declare dllimport void @"\01??$funcTmpl@UExplicitSpec_Imported@@@@YAXXZ"() 524 // GNU-DAG: declare dllimport void @_Z8funcTmplI21ExplicitSpec_ImportedEvv() 525 template<> __declspec(dllimport) void funcTmpl<ExplicitSpec_Imported>(); 526 USE(funcTmpl<ExplicitSpec_Imported>) 527 528 // MSC-DAG-FIXME: declare dllimport void @"\01??$funcTmpl@UExplicitSpec_Def_Imported@@@@YAXXZ"() 529 // MO1-DAG-FIXME: define available_externally dllimport void @"\01??$funcTmpl@UExplicitSpec_Def_Imported@@@@YAXXZ"() 530 #ifdef MSABI 531 //template<> __declspec(dllimport) void funcTmpl<ExplicitSpec_Def_Imported>() {} 532 //USE(funcTmpl<ExplicitSpec_Def_Imported>) 533 #endif 534 535 // MSC-DAG: declare dllimport void @"\01??$funcTmpl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"() 536 // GNU-DAG: define linkonce_odr void @_Z8funcTmplI31ExplicitSpec_InlineDef_ImportedEvv() 537 // MO1-DAG: define available_externally dllimport void @"\01??$funcTmpl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"() 538 // GO1-DAG: define linkonce_odr void @_Z8funcTmplI31ExplicitSpec_InlineDef_ImportedEvv() 539 template<> __declspec(dllimport) inline void funcTmpl<ExplicitSpec_InlineDef_Imported>() {} 540 USE(funcTmpl<ExplicitSpec_InlineDef_Imported>) 541 542 543 544 //===----------------------------------------------------------------------===// 545 // Classes 546 //===----------------------------------------------------------------------===// 547 548 struct __declspec(dllimport) T { 549 void a() {} 550 // MO1-DAG: define available_externally dllimport x86_thiscallcc void @"\01?a@T@@QAEXXZ" 551 552 static int b; 553 // MO1-DAG: @"\01?b@T@@2HA" = external dllimport global i32 554 555 T& operator=(T&) = default; 556 // MO1-DAG: define available_externally dllimport x86_thiscallcc dereferenceable({{[0-9]+}}) %struct.T* @"\01??4T@@QAEAAU0@AAU0@@Z" 557 558 T& operator=(T&&) = default; 559 // Note: Don't mark inline move operators dllimport because current MSVC versions don't export them. 560 // MO1-DAG: define linkonce_odr x86_thiscallcc dereferenceable({{[0-9]+}}) %struct.T* @"\01??4T@@QAEAAU0@$$QAU0@@Z" 561 }; 562 USEMEMFUNC(T, a) 563 USEVAR(T::b) 564 USECOPYASSIGN(T) 565 USEMOVEASSIGN(T) 566 567 template <typename T> struct __declspec(dllimport) U { void foo() {} }; 568 // MO1-DAG: define available_externally dllimport x86_thiscallcc void @"\01?foo@?$U@H@@QAEXXZ" 569 struct __declspec(dllimport) V : public U<int> { }; 570 USEMEMFUNC(V, foo) 571 572 struct __declspec(dllimport) W { virtual void foo() {} }; 573 USECLASS(W) 574 // vftable: 575 // MO1-DAG: @"\01??_7W@@6B@" = available_externally dllimport unnamed_addr constant [1 x i8*] [i8* bitcast (void (%struct.W*)* @"\01?foo@W@@UAEXXZ" to i8*)] 576 // GO1-DAG: @_ZTV1W = available_externally dllimport unnamed_addr constant [3 x i8*] [i8* null, i8* null, i8* bitcast (void (%struct.W*)* @_ZN1W3fooEv to i8*)] 577 578 struct __declspec(dllimport) KeyFuncClass { 579 constexpr KeyFuncClass() {} 580 virtual void foo(); 581 }; 582 constexpr KeyFuncClass keyFuncClassVar; 583 // G32-DAG: @_ZTV12KeyFuncClass = external dllimport unnamed_addr constant [3 x i8*] 584 585 struct __declspec(dllimport) X : public virtual W {}; 586 USECLASS(X) 587 // vbtable: 588 // MO1-DAG: @"\01??_8X@@7B@" = available_externally dllimport unnamed_addr constant [2 x i32] [i32 0, i32 4] 589 590 struct __declspec(dllimport) Y { 591 int x; 592 }; 593 594 struct __declspec(dllimport) Z { virtual ~Z() {} }; 595 USECLASS(Z) 596 // User-defined dtor: 597 // MO1-DAG: define available_externally dllimport x86_thiscallcc void @"\01??1Z@@UAE@XZ" 598 599 namespace DontUseDtorAlias { 600 struct __declspec(dllimport) A { ~A(); }; 601 struct __declspec(dllimport) B : A { ~B(); }; 602 inline A::~A() { } 603 inline B::~B() { } 604 // Emit a real definition of B's constructor; don't alias it to A's. 605 // MO1-DAG: available_externally dllimport x86_thiscallcc void @"\01??1B@DontUseDtorAlias@@QAE@XZ" 606 USECLASS(B) 607 } 608 609 namespace Vtordisp { 610 // Don't dllimport the vtordisp. 611 // MO1-DAG: define linkonce_odr x86_thiscallcc void @"\01?f@?$C@D@Vtordisp@@$4PPPPPPPM@A@AEXXZ" 612 613 class Base { 614 virtual void f() {} 615 }; 616 template <typename T> 617 class __declspec(dllimport) C : virtual public Base { 618 public: 619 C() {} 620 virtual void f() {} 621 }; 622 template class C<char>; 623 } 624 625 namespace ClassTemplateStaticDef { 626 // Regular template static field: 627 template <typename T> struct __declspec(dllimport) S { 628 static int x; 629 }; 630 template <typename T> int S<T>::x; 631 // MSC-DAG: @"\01?x@?$S@H@ClassTemplateStaticDef@@2HA" = available_externally dllimport global i32 0 632 int f() { return S<int>::x; } 633 634 // Partial class template specialization static field: 635 template <typename A> struct T; 636 template <typename A> struct __declspec(dllimport) T<A*> { 637 static int x; 638 }; 639 template <typename A> int T<A*>::x; 640 // GNU-DAG: @_ZN22ClassTemplateStaticDef1TIPvE1xE = available_externally dllimport global i32 0 641 int g() { return T<void*>::x; } 642 } 643 644 namespace PR19933 { 645 // Don't dynamically initialize dllimport vars. 646 // MSC2-NOT: @llvm.global_ctors 647 // GNU2-NOT: @llvm.global_ctors 648 649 struct NonPOD { NonPOD(); }; 650 template <typename T> struct A { static NonPOD x; }; 651 template <typename T> NonPOD A<T>::x; 652 template struct __declspec(dllimport) A<int>; 653 // MSC-DAG: @"\01?x@?$A@H@PR19933@@2UNonPOD@2@A" = available_externally dllimport global %"struct.PR19933::NonPOD" zeroinitializer 654 655 int f(); 656 template <typename T> struct B { static int x; }; 657 template <typename T> int B<T>::x = f(); 658 template struct __declspec(dllimport) B<int>; 659 // MSC-DAG: @"\01?x@?$B@H@PR19933@@2HA" = available_externally dllimport global i32 0 660 661 constexpr int g() { return 42; } 662 template <typename T> struct C { static int x; }; 663 template <typename T> int C<T>::x = g(); 664 template struct __declspec(dllimport) C<int>; 665 // MSC-DAG: @"\01?x@?$C@H@PR19933@@2HA" = available_externally dllimport global i32 42 666 667 template <int I> struct D { static int x, y; }; 668 template <int I> int D<I>::x = I + 1; 669 template <int I> int D<I>::y = I + f(); 670 template struct __declspec(dllimport) D<42>; 671 // MSC-DAG: @"\01?x@?$D@$0CK@@PR19933@@2HA" = available_externally dllimport global i32 43 672 // MSC-DAG: @"\01?y@?$D@$0CK@@PR19933@@2HA" = available_externally dllimport global i32 0 673 } 674 675 namespace PR21355 { 676 struct __declspec(dllimport) S { 677 virtual ~S(); 678 }; 679 S::~S() {} 680 681 // S::~S is a key function, so we would ordinarily emit a strong definition for 682 // the vtable. However, S is imported, so the vtable should be too. 683 684 // GNU-DAG: @_ZTVN7PR213551SE = available_externally dllimport unnamed_addr constant [4 x i8*] 685 } 686 687 namespace PR21366 { 688 struct __declspec(dllimport) S { 689 void outOfLineMethod(); 690 void inlineMethod() {} 691 inline void anotherInlineMethod(); 692 void outOfClassInlineMethod(); 693 }; 694 void S::anotherInlineMethod() {} 695 inline void S::outOfClassInlineMethod() {} 696 } 697 698 // MS ignores DLL attributes on partial specializations. 699 template <typename T> struct PartiallySpecializedClassTemplate {}; 700 template <typename T> struct __declspec(dllimport) PartiallySpecializedClassTemplate<T*> { void f(); }; 701 USEMEMFUNC(PartiallySpecializedClassTemplate<void*>, f); 702 // M32-DAG: declare x86_thiscallcc void @"\01?f@?$PartiallySpecializedClassTemplate@PAX@@QAEXXZ" 703 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN33PartiallySpecializedClassTemplateIPvE1fEv 704 705 // Attributes on explicit specializations are honored. 706 template <typename T> struct ExplicitlySpecializedClassTemplate {}; 707 template <> struct __declspec(dllimport) ExplicitlySpecializedClassTemplate<void*> { void f(); }; 708 USEMEMFUNC(ExplicitlySpecializedClassTemplate<void*>, f); 709 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?f@?$ExplicitlySpecializedClassTemplate@PAX@@QAEXXZ" 710 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN34ExplicitlySpecializedClassTemplateIPvE1fEv 711 712 // MS inherits DLL attributes to partial specializations. 713 template <typename T> struct __declspec(dllimport) PartiallySpecializedImportedClassTemplate {}; 714 template <typename T> struct PartiallySpecializedImportedClassTemplate<T*> { void f() {} }; 715 USEMEMFUNC(PartiallySpecializedImportedClassTemplate<void*>, f); 716 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?f@?$PartiallySpecializedImportedClassTemplate@PAX@@QAEXXZ" 717 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN41PartiallySpecializedImportedClassTemplateIPvE1fEv 718 719 // Attributes on the instantiation take precedence over attributes on the template. 720 template <typename T> struct __declspec(dllexport) ExplicitlyInstantiatedWithDifferentAttr { void f() {} }; 721 template struct __declspec(dllimport) ExplicitlyInstantiatedWithDifferentAttr<int>; 722 USEMEMFUNC(ExplicitlyInstantiatedWithDifferentAttr<int>, f); 723 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?f@?$ExplicitlyInstantiatedWithDifferentAttr@H@@QAEXXZ" 724 725 726 //===----------------------------------------------------------------------===// 727 // Classes with template base classes 728 //===----------------------------------------------------------------------===// 729 730 template <typename T> struct ClassTemplate { void func() {} }; 731 template <typename T> struct __declspec(dllexport) ExportedClassTemplate { void func(); }; 732 template <typename T> void ExportedClassTemplate<T>::func() {} 733 template <typename T> struct __declspec(dllimport) ImportedClassTemplate { void func(); }; 734 735 template <typename T> struct ExplicitlySpecializedTemplate { void func() {} }; 736 template <> struct ExplicitlySpecializedTemplate<int> { void func() {} }; 737 template <typename T> struct ExplicitlyExportSpecializedTemplate { void func() {} }; 738 template <> struct __declspec(dllexport) ExplicitlyExportSpecializedTemplate<int> { void func(); }; 739 void ExplicitlyExportSpecializedTemplate<int>::func() {} 740 template <typename T> struct ExplicitlyImportSpecializedTemplate { void func() {} }; 741 template <> struct __declspec(dllimport) ExplicitlyImportSpecializedTemplate<int> { void func(); }; 742 743 template <typename T> struct ExplicitlyInstantiatedTemplate { void func() {} }; 744 template struct ExplicitlyInstantiatedTemplate<int>; 745 template <typename T> struct ExplicitlyExportInstantiatedTemplate { void func(); }; 746 template <typename T> void ExplicitlyExportInstantiatedTemplate<T>::func() {} 747 template struct __declspec(dllexport) ExplicitlyExportInstantiatedTemplate<int>; 748 template <typename T> struct ExplicitlyImportInstantiatedTemplate { void func(); }; 749 template struct __declspec(dllimport) ExplicitlyImportInstantiatedTemplate<int>; 750 751 752 // MS: ClassTemplate<int> gets imported. 753 struct __declspec(dllimport) DerivedFromTemplate : public ClassTemplate<int> {}; 754 USEMEMFUNC(ClassTemplate<int>, func) 755 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$ClassTemplate@H@@QAEXXZ" 756 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIiE4funcEv 757 758 // ImportedTemplate is explicitly imported. 759 struct __declspec(dllimport) DerivedFromImportedTemplate : public ImportedClassTemplate<int> {}; 760 USEMEMFUNC(ImportedClassTemplate<int>, func) 761 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?func@?$ImportedClassTemplate@H@@QAEXXZ" 762 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN21ImportedClassTemplateIiE4funcEv 763 764 // ExportedTemplate is explicitly exported. 765 struct __declspec(dllimport) DerivedFromExportedTemplate : public ExportedClassTemplate<int> {}; 766 USEMEMFUNC(ExportedClassTemplate<int>, func) 767 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExportedClassTemplate@H@@QAEXXZ" 768 // G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN21ExportedClassTemplateIiE4funcEv 769 770 // Base class already instantiated without attribute. 771 struct DerivedFromTemplateD : public ClassTemplate<double> {}; 772 struct __declspec(dllimport) DerivedFromTemplateD2 : public ClassTemplate<double> {}; 773 USEMEMFUNC(ClassTemplate<double>, func) 774 // M32-DAG: define linkonce_odr x86_thiscallcc void @"\01?func@?$ClassTemplate@N@@QAEXXZ" 775 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIdE4funcEv 776 777 // MS: Base class already instantiated with dfferent attribute. 778 struct __declspec(dllexport) DerivedFromTemplateB : public ClassTemplate<bool> {}; 779 struct __declspec(dllimport) DerivedFromTemplateB2 : public ClassTemplate<bool> {}; 780 USEMEMFUNC(ClassTemplate<bool>, func) 781 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ClassTemplate@_N@@QAEXXZ" 782 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIbE4funcEv 783 784 // Base class already specialized without dll attribute. 785 struct __declspec(dllimport) DerivedFromExplicitlySpecializedTemplate : public ExplicitlySpecializedTemplate<int> {}; 786 USEMEMFUNC(ExplicitlySpecializedTemplate<int>, func) 787 // M32-DAG: define linkonce_odr x86_thiscallcc void @"\01?func@?$ExplicitlySpecializedTemplate@H@@QAEXXZ" 788 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN29ExplicitlySpecializedTemplateIiE4funcEv 789 790 // Base class alredy specialized with export attribute. 791 struct __declspec(dllimport) DerivedFromExplicitlyExportSpecializedTemplate : public ExplicitlyExportSpecializedTemplate<int> {}; 792 USEMEMFUNC(ExplicitlyExportSpecializedTemplate<int>, func) 793 // M32-DAG: define dllexport x86_thiscallcc void @"\01?func@?$ExplicitlyExportSpecializedTemplate@H@@QAEXXZ" 794 // G32-DAG: define dllexport x86_thiscallcc void @_ZN35ExplicitlyExportSpecializedTemplateIiE4funcEv 795 796 // Base class already specialized with import attribute. 797 struct __declspec(dllimport) DerivedFromExplicitlyImportSpecializedTemplate : public ExplicitlyImportSpecializedTemplate<int> {}; 798 USEMEMFUNC(ExplicitlyImportSpecializedTemplate<int>, func) 799 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?func@?$ExplicitlyImportSpecializedTemplate@H@@QAEXXZ" 800 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN35ExplicitlyImportSpecializedTemplateIiE4funcEv 801 802 // Base class already instantiated without dll attribute. 803 struct __declspec(dllimport) DerivedFromExplicitlyInstantiatedTemplate : public ExplicitlyInstantiatedTemplate<int> {}; 804 USEMEMFUNC(ExplicitlyInstantiatedTemplate<int>, func) 805 // M32-DAG: define weak_odr x86_thiscallcc void @"\01?func@?$ExplicitlyInstantiatedTemplate@H@@QAEXXZ" 806 // G32-DAG: define weak_odr x86_thiscallcc void @_ZN30ExplicitlyInstantiatedTemplateIiE4funcEv 807 808 // Base class already instantiated with export attribute. 809 struct __declspec(dllimport) DerivedFromExplicitlyExportInstantiatedTemplate : public ExplicitlyExportInstantiatedTemplate<int> {}; 810 USEMEMFUNC(ExplicitlyExportInstantiatedTemplate<int>, func) 811 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExplicitlyExportInstantiatedTemplate@H@@QAEXXZ" 812 // G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN36ExplicitlyExportInstantiatedTemplateIiE4funcEv 813 814 // Base class already instantiated with import attribute. 815 struct __declspec(dllimport) DerivedFromExplicitlyImportInstantiatedTemplate : public ExplicitlyImportInstantiatedTemplate<int> {}; 816 USEMEMFUNC(ExplicitlyImportInstantiatedTemplate<int>, func) 817 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?func@?$ExplicitlyImportInstantiatedTemplate@H@@QAEXXZ" 818 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN36ExplicitlyImportInstantiatedTemplateIiE4funcEv 819 820 // MS: A dll attribute propagates through multiple levels of instantiation. 821 template <typename T> struct TopClass { void func() {} }; 822 template <typename T> struct MiddleClass : public TopClass<T> { }; 823 struct __declspec(dllimport) BottomClass : public MiddleClass<int> { }; 824 USEMEMFUNC(TopClass<int>, func) 825 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$TopClass@H@@QAEXXZ" 826 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN8TopClassIiE4funcEv 827
