1 // RUN: %clang_cc1 -triple i686-windows-msvc -fno-rtti -fno-threadsafe-statics -fms-extensions -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 -fno-threadsafe-statics -fms-extensions -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 -fno-threadsafe-statics -fms-extensions -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 -fno-threadsafe-statics -fms-extensions -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 -fno-threadsafe-statics -fms-extensions -fms-compatibility-version=18.00 -emit-llvm -std=c++1y -O1 -disable-llvm-optzns -o - %s -DMSABI -w | FileCheck --check-prefix=MO1 --check-prefix=M18 %s 6 // RUN: %clang_cc1 -triple i686-windows-msvc -fno-rtti -fno-threadsafe-statics -fms-extensions -fms-compatibility-version=19.00 -emit-llvm -std=c++1y -O1 -disable-llvm-optzns -o - %s -DMSABI -w | FileCheck --check-prefix=MO1 --check-prefix=M19 %s 7 // RUN: %clang_cc1 -triple i686-windows-gnu -fno-rtti -fno-threadsafe-statics -fms-extensions -emit-llvm -std=c++1y -O1 -o - %s -w | FileCheck --check-prefix=GO1 %s 8 9 // CHECK-NOT doesn't play nice with CHECK-DAG, so use separate run lines. 10 // RUN: %clang_cc1 -triple i686-windows-msvc -fno-rtti -fno-threadsafe-statics -fms-extensions -emit-llvm -std=c++1y -O0 -o - %s -DMSABI -w | FileCheck --check-prefix=MSC2 %s 11 // RUN: %clang_cc1 -triple i686-windows-gnu -fno-rtti -fno-threadsafe-statics -fms-extensions -emit-llvm -std=c++1y -O0 -o - %s -w | FileCheck --check-prefix=GNU2 %s 12 13 // Helper structs to make templates more expressive. 14 struct ImplicitInst_Imported {}; 15 struct ImplicitInst_NotImported {}; 16 struct ExplicitDecl_Imported {}; 17 struct ExplicitInst_Imported {}; 18 struct ExplicitSpec_Imported {}; 19 struct ExplicitSpec_Def_Imported {}; 20 struct ExplicitSpec_InlineDef_Imported {}; 21 struct ExplicitSpec_NotImported {}; 22 23 #define JOIN2(x, y) x##y 24 #define JOIN(x, y) JOIN2(x, y) 25 #define UNIQ(name) JOIN(name, __LINE__) 26 #define USEVARTYPE(type, var) type UNIQ(use)() { return var; } 27 #define USEVAR(var) USEVARTYPE(int, var) 28 #define USE(func) void UNIQ(use)() { func(); } 29 #define USEMEMFUNC(class, func) void (class::*UNIQ(use)())() { return &class::func; } 30 #define USECLASS(class) void UNIQ(USE)() { class x; } 31 #define USECOPYASSIGN(class) class& (class::*UNIQ(use)())(class&) { return &class::operator=; } 32 #define USEMOVEASSIGN(class) class& (class::*UNIQ(use)())(class&&) { return &class::operator=; } 33 34 //===----------------------------------------------------------------------===// 35 // Globals 36 //===----------------------------------------------------------------------===// 37 38 // Import declaration. 39 // MSC-DAG: @"\01?ExternGlobalDecl@@3HA" = external dllimport global i32 40 // GNU-DAG: @ExternGlobalDecl = external dllimport global i32 41 __declspec(dllimport) extern int ExternGlobalDecl; 42 USEVAR(ExternGlobalDecl) 43 44 // dllimport implies a declaration. 45 // MSC-DAG: @"\01?GlobalDecl@@3HA" = external dllimport global i32 46 // GNU-DAG: @GlobalDecl = external dllimport global i32 47 __declspec(dllimport) int GlobalDecl; 48 USEVAR(GlobalDecl) 49 50 // Redeclarations 51 // MSC-DAG: @"\01?GlobalRedecl1@@3HA" = external dllimport global i32 52 // GNU-DAG: @GlobalRedecl1 = external dllimport global i32 53 __declspec(dllimport) extern int GlobalRedecl1; 54 __declspec(dllimport) extern int GlobalRedecl1; 55 USEVAR(GlobalRedecl1) 56 57 // MSC-DAG: @"\01?GlobalRedecl2a@@3HA" = external dllimport global i32 58 // GNU-DAG: @GlobalRedecl2a = external dllimport global i32 59 __declspec(dllimport) int GlobalRedecl2a; 60 __declspec(dllimport) int GlobalRedecl2a; 61 USEVAR(GlobalRedecl2a) 62 63 // M32-DAG: @"\01?GlobalRedecl2b@@3PAHA" = external dllimport global i32* 64 // M64-DAG: @"\01?GlobalRedecl2b@@3PEAHEA" = external dllimport global i32* 65 // GNU-DAG: @GlobalRedecl2b = external dllimport global i32* 66 int *__attribute__((dllimport)) GlobalRedecl2b; 67 int *__attribute__((dllimport)) GlobalRedecl2b; 68 USEVARTYPE(int*, GlobalRedecl2b) 69 70 // MSC-DAG: @"\01?GlobalRedecl2c@@3HA" = external dllimport global i32 71 // GNU-DAG: @GlobalRedecl2c = external dllimport global i32 72 int GlobalRedecl2c __attribute__((dllimport)); 73 int GlobalRedecl2c __attribute__((dllimport)); 74 USEVAR(GlobalRedecl2c) 75 76 // NB: MSC issues a warning and makes GlobalRedecl3 dllexport. We follow GCC 77 // and drop the dllimport with a warning. 78 // MSC-DAG: @"\01?GlobalRedecl3@@3HA" = external global i32 79 // GNU-DAG: @GlobalRedecl3 = external global i32 80 __declspec(dllimport) extern int GlobalRedecl3; 81 extern int GlobalRedecl3; // dllimport ignored 82 USEVAR(GlobalRedecl3) 83 84 // MSC-DAG: @"\01?ExternalGlobal@ns@@3HA" = external dllimport global i32 85 // GNU-DAG: @_ZN2ns14ExternalGlobalE = external dllimport global i32 86 namespace ns { __declspec(dllimport) int ExternalGlobal; } 87 USEVAR(ns::ExternalGlobal) 88 89 int f(); 90 // MO1-DAG: @"\01?x@?1??inlineStaticLocalsFunc@@YAHXZ@4HA" = available_externally dllimport global i32 0 91 // MO1-DAG: @"\01??_B?1??inlineStaticLocalsFunc@@YAHXZ@51" = available_externally dllimport global i32 0 92 inline int __declspec(dllimport) inlineStaticLocalsFunc() { 93 static int x = f(); 94 return x++; 95 }; 96 USE(inlineStaticLocalsFunc); 97 98 // The address of a dllimport global cannot be used in constant initialization. 99 // M32-DAG: @"\01?arr@?1??initializationFunc@@YAPAHXZ@4QBQAHB" = internal global [1 x i32*] zeroinitializer 100 // GNU-DAG: @_ZZ18initializationFuncvE3arr = internal global [1 x i32*] zeroinitializer 101 int *initializationFunc() { 102 static int *const arr[] = {&ExternGlobalDecl}; 103 return arr[0]; 104 } 105 USE(initializationFunc); 106 107 108 //===----------------------------------------------------------------------===// 109 // Variable templates 110 //===----------------------------------------------------------------------===// 111 112 // Import declaration. 113 // MSC-DAG: @"\01??$ExternVarTmplDecl@UImplicitInst_Imported@@@@3HA" = external dllimport global i32 114 // GNU-DAG: @_Z17ExternVarTmplDeclI21ImplicitInst_ImportedE = external dllimport global i32 115 template<typename T> __declspec(dllimport) extern int ExternVarTmplDecl; 116 USEVAR(ExternVarTmplDecl<ImplicitInst_Imported>) 117 118 // dllimport implies a declaration. 119 // MSC-DAG: @"\01??$VarTmplDecl@UImplicitInst_Imported@@@@3HA" = external dllimport global i32 120 // GNU-DAG: @_Z11VarTmplDeclI21ImplicitInst_ImportedE = external dllimport global i32 121 template<typename T> __declspec(dllimport) int VarTmplDecl; 122 USEVAR(VarTmplDecl<ImplicitInst_Imported>) 123 124 // Redeclarations 125 // MSC-DAG: @"\01??$VarTmplRedecl1@UImplicitInst_Imported@@@@3HA" = external dllimport global i32 126 // GNU-DAG: @_Z14VarTmplRedecl1I21ImplicitInst_ImportedE = external dllimport global i32 127 template<typename T> __declspec(dllimport) extern int VarTmplRedecl1; 128 template<typename T> __declspec(dllimport) extern int VarTmplRedecl1; 129 USEVAR(VarTmplRedecl1<ImplicitInst_Imported>) 130 131 // MSC-DAG: @"\01??$VarTmplRedecl2@UImplicitInst_Imported@@@@3HA" = external dllimport global i32 132 // GNU-DAG: @_Z14VarTmplRedecl2I21ImplicitInst_ImportedE = external dllimport global i32 133 template<typename T> __declspec(dllimport) int VarTmplRedecl2; 134 template<typename T> __declspec(dllimport) int VarTmplRedecl2; 135 USEVAR(VarTmplRedecl2<ImplicitInst_Imported>) 136 137 // MSC-DAG: @"\01??$VarTmplRedecl3@UImplicitInst_Imported@@@@3HA" = external global i32 138 // GNU-DAG: @_Z14VarTmplRedecl3I21ImplicitInst_ImportedE = external global i32 139 template<typename T> __declspec(dllimport) extern int VarTmplRedecl3; 140 template<typename T> extern int VarTmplRedecl3; // dllimport ignored 141 USEVAR(VarTmplRedecl3<ImplicitInst_Imported>) 142 143 144 // MSC-DAG: @"\01??$ExternalVarTmpl@UImplicitInst_Imported@@@ns@@3HA" = external dllimport global i32 145 // GNU-DAG: @_ZN2ns15ExternalVarTmplI21ImplicitInst_ImportedEE = external dllimport global i32 146 namespace ns { template<typename T> __declspec(dllimport) int ExternalVarTmpl; } 147 USEVAR(ns::ExternalVarTmpl<ImplicitInst_Imported>) 148 149 150 template<typename T> int VarTmpl; 151 template<typename T> __declspec(dllimport) int ImportedVarTmpl; 152 153 // Import implicit instantiation of an imported variable template. 154 // MSC-DAG: @"\01??$ImportedVarTmpl@UImplicitInst_Imported@@@@3HA" = external dllimport global i32 155 // GNU-DAG: @_Z15ImportedVarTmplI21ImplicitInst_ImportedE = external dllimport global i32 156 USEVAR(ImportedVarTmpl<ImplicitInst_Imported>) 157 158 // Import explicit instantiation declaration of an imported variable template. 159 // MSC-DAG: @"\01??$ImportedVarTmpl@UExplicitDecl_Imported@@@@3HA" = external dllimport global i32 160 // GNU-DAG: @_Z15ImportedVarTmplI21ExplicitDecl_ImportedE = external dllimport global i32 161 extern template int ImportedVarTmpl<ExplicitDecl_Imported>; 162 USEVAR(ImportedVarTmpl<ExplicitDecl_Imported>) 163 164 // An explicit instantiation definition of an imported variable template cannot 165 // be imported because the template must be defined which is illegal. 166 167 // Import specialization of an imported variable template. 168 // MSC-DAG: @"\01??$ImportedVarTmpl@UExplicitSpec_Imported@@@@3HA" = external dllimport global i32 169 // GNU-DAG: @_Z15ImportedVarTmplI21ExplicitSpec_ImportedE = external dllimport global i32 170 template<> __declspec(dllimport) int ImportedVarTmpl<ExplicitSpec_Imported>; 171 USEVAR(ImportedVarTmpl<ExplicitSpec_Imported>) 172 173 // Not importing specialization of an imported variable template without 174 // explicit dllimport. 175 // MSC-DAG: @"\01??$ImportedVarTmpl@UExplicitSpec_NotImported@@@@3HA" = global i32 0, align 4 176 // GNU-DAG: @_Z15ImportedVarTmplI24ExplicitSpec_NotImportedE = global i32 0, align 4 177 template<> int ImportedVarTmpl<ExplicitSpec_NotImported>; 178 USEVAR(ImportedVarTmpl<ExplicitSpec_NotImported>) 179 180 // Import explicit instantiation declaration of a non-imported variable template. 181 // MSC-DAG: @"\01??$VarTmpl@UExplicitDecl_Imported@@@@3HA" = external dllimport global i32 182 // GNU-DAG: @_Z7VarTmplI21ExplicitDecl_ImportedE = external dllimport global i32 183 extern template __declspec(dllimport) int VarTmpl<ExplicitDecl_Imported>; 184 USEVAR(VarTmpl<ExplicitDecl_Imported>) 185 186 // Import explicit instantiation definition of a non-imported variable template. 187 // MSC-DAG: @"\01??$VarTmpl@UExplicitInst_Imported@@@@3HA" = external dllimport global i32 188 // GNU-DAG: @_Z7VarTmplI21ExplicitInst_ImportedE = external dllimport global i32 189 template __declspec(dllimport) int VarTmpl<ExplicitInst_Imported>; 190 USEVAR(VarTmpl<ExplicitInst_Imported>) 191 192 // Import specialization of a non-imported variable template. 193 // MSC-DAG: @"\01??$VarTmpl@UExplicitSpec_Imported@@@@3HA" = external dllimport global i32 194 // GNU-DAG: @_Z7VarTmplI21ExplicitSpec_ImportedE = external dllimport global i32 195 template<> __declspec(dllimport) int VarTmpl<ExplicitSpec_Imported>; 196 USEVAR(VarTmpl<ExplicitSpec_Imported>) 197 198 199 200 //===----------------------------------------------------------------------===// 201 // Functions 202 //===----------------------------------------------------------------------===// 203 204 // Import function declaration. 205 // MSC-DAG: declare dllimport void @"\01?decl@@YAXXZ"() 206 // GNU-DAG: declare dllimport void @_Z4declv() 207 __declspec(dllimport) void decl(); 208 USE(decl) 209 210 // extern "C" 211 // MSC-DAG: declare dllimport void @externC() 212 // GNU-DAG: declare dllimport void @externC() 213 extern "C" __declspec(dllimport) void externC(); 214 USE(externC) 215 216 // Import inline function. 217 // MSC-DAG: declare dllimport void @"\01?inlineFunc@@YAXXZ"() 218 // GNU-DAG: define linkonce_odr void @_Z10inlineFuncv() 219 // MO1-DAG: define available_externally dllimport void @"\01?inlineFunc@@YAXXZ"() 220 // GO1-DAG: define linkonce_odr void @_Z10inlineFuncv() 221 __declspec(dllimport) inline void inlineFunc() {} 222 USE(inlineFunc) 223 224 // MSC-DAG: declare dllimport void @"\01?inlineDecl@@YAXXZ"() 225 // GNU-DAG: define linkonce_odr void @_Z10inlineDeclv() 226 // MO1-DAG: define available_externally dllimport void @"\01?inlineDecl@@YAXXZ"() 227 // GO1-DAG: define linkonce_odr void @_Z10inlineDeclv() 228 __declspec(dllimport) inline void inlineDecl(); 229 void inlineDecl() {} 230 USE(inlineDecl) 231 232 // MSC-DAG: declare dllimport void @"\01?inlineDef@@YAXXZ"() 233 // GNU-DAG: define linkonce_odr void @_Z9inlineDefv() 234 // MO1-DAG: define available_externally dllimport void @"\01?inlineDef@@YAXXZ"() 235 // GO1-DAG: define linkonce_odr void @_Z9inlineDefv() 236 __declspec(dllimport) void inlineDef(); 237 inline void inlineDef() {} 238 USE(inlineDef) 239 240 // inline attributes 241 // MSC-DAG: declare dllimport void @"\01?noinline@@YAXXZ"() 242 // GNU-DAG: define linkonce_odr void @_Z8noinlinev() 243 __declspec(dllimport) __attribute__((noinline)) inline void noinline() {} 244 USE(noinline) 245 246 // MSC2-NOT: @"\01?alwaysInline@@YAXXZ"() 247 // GNU2-NOT: @_Z12alwaysInlinev() 248 __declspec(dllimport) __attribute__((always_inline)) inline void alwaysInline() {} 249 USE(alwaysInline) 250 251 // Redeclarations 252 // MSC-DAG: declare dllimport void @"\01?redecl1@@YAXXZ"() 253 // GNU-DAG: declare dllimport void @_Z7redecl1v() 254 __declspec(dllimport) void redecl1(); 255 __declspec(dllimport) void redecl1(); 256 USE(redecl1) 257 258 // NB: MSC issues a warning and makes redecl2/redecl3 dllexport. We follow GCC 259 // and drop the dllimport with a warning. 260 // MSC-DAG: declare void @"\01?redecl2@@YAXXZ"() 261 // GNU-DAG: declare void @_Z7redecl2v() 262 __declspec(dllimport) void redecl2(); 263 void redecl2(); 264 USE(redecl2) 265 266 // MSC-DAG: define void @"\01?redecl3@@YAXXZ"() 267 // GNU-DAG: define void @_Z7redecl3v() 268 __declspec(dllimport) void redecl3(); 269 void redecl3() {} // dllimport ignored 270 USE(redecl3) 271 272 273 // Friend functions 274 // MSC-DAG: declare dllimport void @"\01?friend1@@YAXXZ"() 275 // GNU-DAG: declare dllimport void @_Z7friend1v() 276 // MSC-DAG: declare void @"\01?friend2@@YAXXZ"() 277 // GNU-DAG: declare void @_Z7friend2v() 278 // MSC-DAG: define void @"\01?friend3@@YAXXZ"() 279 // GNU-DAG: define void @_Z7friend3v() 280 // MSC-DAG: declare void @"\01?friend4@@YAXXZ"() 281 // GNU-DAG: declare void @_Z7friend4v() 282 // MSC-DAG: declare dllimport void @"\01?friend5@@YAXXZ"() 283 // GNU-DAG: declare dllimport void @_Z7friend5v() 284 285 struct FuncFriend { 286 friend __declspec(dllimport) void friend1(); 287 friend __declspec(dllimport) void friend2(); 288 friend __declspec(dllimport) void friend3(); 289 }; 290 __declspec(dllimport) void friend1(); 291 void friend2(); // dllimport ignored 292 void friend3() {} // dllimport ignored 293 294 __declspec(dllimport) void friend4(); 295 __declspec(dllimport) void friend5(); 296 struct FuncFriendRedecl { 297 friend void friend4(); // dllimport ignored 298 friend void ::friend5(); 299 }; 300 USE(friend1) 301 USE(friend2) 302 USE(friend3) 303 USE(friend4) 304 USE(friend5) 305 306 // Implicit declarations can be redeclared with dllimport. 307 // MSC-DAG: declare dllimport noalias i8* @"\01??2@{{YAPAXI|YAPEAX_K}}@Z"( 308 // GNU-DAG: declare dllimport noalias i8* @_Znw{{[yj]}}( 309 __declspec(dllimport) void* operator new(__SIZE_TYPE__ n); 310 void UNIQ(use)() { ::operator new(42); } 311 312 // MSC-DAG: declare dllimport void @"\01?externalFunc@ns@@YAXXZ"() 313 // GNU-DAG: declare dllimport void @_ZN2ns12externalFuncEv() 314 namespace ns { __declspec(dllimport) void externalFunc(); } 315 USE(ns::externalFunc) 316 317 318 319 //===----------------------------------------------------------------------===// 320 // Function templates 321 //===----------------------------------------------------------------------===// 322 323 // Import function template declaration. 324 // MSC-DAG: declare dllimport void @"\01??$funcTmplDecl@UImplicitInst_Imported@@@@YAXXZ"() 325 // GNU-DAG: declare dllimport void @_Z12funcTmplDeclI21ImplicitInst_ImportedEvv() 326 template<typename T> __declspec(dllimport) void funcTmplDecl(); 327 USE(funcTmplDecl<ImplicitInst_Imported>) 328 329 // Function template definitions cannot be imported. 330 331 // Import inline function template. 332 // MSC-DAG: declare dllimport void @"\01??$inlineFuncTmpl1@UImplicitInst_Imported@@@@YAXXZ"() 333 // GNU-DAG: define linkonce_odr void @_Z15inlineFuncTmpl1I21ImplicitInst_ImportedEvv() 334 // MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmpl1@UImplicitInst_Imported@@@@YAXXZ"() 335 // GO1-DAG: define linkonce_odr void @_Z15inlineFuncTmpl1I21ImplicitInst_ImportedEvv() 336 template<typename T> __declspec(dllimport) inline void inlineFuncTmpl1() {} 337 USE(inlineFuncTmpl1<ImplicitInst_Imported>) 338 339 // MSC-DAG: declare dllimport void @"\01??$inlineFuncTmpl2@UImplicitInst_Imported@@@@YAXXZ"() 340 // GNU-DAG: define linkonce_odr void @_Z15inlineFuncTmpl2I21ImplicitInst_ImportedEvv() 341 // MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmpl2@UImplicitInst_Imported@@@@YAXXZ"() 342 // GO1-DAG: define linkonce_odr void @_Z15inlineFuncTmpl2I21ImplicitInst_ImportedEvv() 343 template<typename T> inline void __attribute__((dllimport)) inlineFuncTmpl2() {} 344 USE(inlineFuncTmpl2<ImplicitInst_Imported>) 345 346 // MSC-DAG: declare dllimport void @"\01??$inlineFuncTmplDecl@UImplicitInst_Imported@@@@YAXXZ"() 347 // GNU-DAG: define linkonce_odr void @_Z18inlineFuncTmplDeclI21ImplicitInst_ImportedEvv() 348 // MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmplDecl@UImplicitInst_Imported@@@@YAXXZ"() 349 // GO1-DAG: define linkonce_odr void @_Z18inlineFuncTmplDeclI21ImplicitInst_ImportedEvv() 350 template<typename T> __declspec(dllimport) inline void inlineFuncTmplDecl(); 351 template<typename T> void inlineFuncTmplDecl() {} 352 USE(inlineFuncTmplDecl<ImplicitInst_Imported>) 353 354 // MSC-DAG: declare dllimport void @"\01??$inlineFuncTmplDef@UImplicitInst_Imported@@@@YAXXZ"() 355 // GNU-DAG: define linkonce_odr void @_Z17inlineFuncTmplDefI21ImplicitInst_ImportedEvv() 356 // MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmplDef@UImplicitInst_Imported@@@@YAXXZ"() 357 // GO1-DAG: define linkonce_odr void @_Z17inlineFuncTmplDefI21ImplicitInst_ImportedEvv() 358 template<typename T> __declspec(dllimport) void inlineFuncTmplDef(); 359 template<typename T> inline void inlineFuncTmplDef() {} 360 USE(inlineFuncTmplDef<ImplicitInst_Imported>) 361 362 363 // Redeclarations 364 // MSC-DAG: declare dllimport void @"\01??$funcTmplRedecl1@UImplicitInst_Imported@@@@YAXXZ"() 365 // GNU-DAG: declare dllimport void @_Z15funcTmplRedecl1I21ImplicitInst_ImportedEvv() 366 template<typename T> __declspec(dllimport) void funcTmplRedecl1(); 367 template<typename T> __declspec(dllimport) void funcTmplRedecl1(); 368 USE(funcTmplRedecl1<ImplicitInst_Imported>) 369 370 // MSC-DAG: declare void @"\01??$funcTmplRedecl2@UImplicitInst_NotImported@@@@YAXXZ"() 371 // GNU-DAG: declare void @_Z15funcTmplRedecl2I24ImplicitInst_NotImportedEvv() 372 template<typename T> __declspec(dllimport) void funcTmplRedecl2(); 373 template<typename T> void funcTmplRedecl2(); // dllimport ignored 374 USE(funcTmplRedecl2<ImplicitInst_NotImported>) 375 376 // MSC-DAG: define linkonce_odr void @"\01??$funcTmplRedecl3@UImplicitInst_NotImported@@@@YAXXZ"() 377 // GNU-DAG: define linkonce_odr void @_Z15funcTmplRedecl3I24ImplicitInst_NotImportedEvv() 378 template<typename T> __declspec(dllimport) void funcTmplRedecl3(); 379 template<typename T> void funcTmplRedecl3() {} // dllimport ignored 380 USE(funcTmplRedecl3<ImplicitInst_NotImported>) 381 382 383 // Function template friends 384 // MSC-DAG: declare dllimport void @"\01??$funcTmplFriend1@UImplicitInst_Imported@@@@YAXXZ"() 385 // GNU-DAG: declare dllimport void @_Z15funcTmplFriend1I21ImplicitInst_ImportedEvv() 386 // MSC-DAG: declare void @"\01??$funcTmplFriend2@UImplicitInst_NotImported@@@@YAXXZ"() 387 // GNU-DAG: declare void @_Z15funcTmplFriend2I24ImplicitInst_NotImportedEvv() 388 // MSC-DAG: define linkonce_odr void @"\01??$funcTmplFriend3@UImplicitInst_NotImported@@@@YAXXZ"() 389 // GNU-DAG: define linkonce_odr void @_Z15funcTmplFriend3I24ImplicitInst_NotImportedEvv() 390 // MSC-DAG: declare dllimport void @"\01??$funcTmplFriend4@UImplicitInst_Imported@@@@YAXXZ"() 391 // GNU-DAG: define linkonce_odr void @_Z15funcTmplFriend4I21ImplicitInst_ImportedEvv() 392 struct FuncTmplFriend { 393 template<typename T> friend __declspec(dllimport) void funcTmplFriend1(); 394 template<typename T> friend __declspec(dllimport) void funcTmplFriend2(); 395 template<typename T> friend __declspec(dllimport) void funcTmplFriend3(); 396 template<typename T> friend __declspec(dllimport) inline void funcTmplFriend4(); 397 }; 398 template<typename T> __declspec(dllimport) void funcTmplFriend1(); 399 template<typename T> void funcTmplFriend2(); // dllimport ignored 400 template<typename T> void funcTmplFriend3() {} // dllimport ignored 401 template<typename T> inline void funcTmplFriend4() {} 402 USE(funcTmplFriend1<ImplicitInst_Imported>) 403 USE(funcTmplFriend2<ImplicitInst_NotImported>) 404 USE(funcTmplFriend3<ImplicitInst_NotImported>) 405 USE(funcTmplFriend4<ImplicitInst_Imported>) 406 407 // MSC-DAG: declare dllimport void @"\01??$externalFuncTmpl@UImplicitInst_Imported@@@ns@@YAXXZ"() 408 // GNU-DAG: declare dllimport void @_ZN2ns16externalFuncTmplI21ImplicitInst_ImportedEEvv() 409 namespace ns { template<typename T> __declspec(dllimport) void externalFuncTmpl(); } 410 USE(ns::externalFuncTmpl<ImplicitInst_Imported>) 411 412 413 template<typename T> void funcTmpl() {} 414 template<typename T> inline void inlineFuncTmpl() {} 415 template<typename T> __declspec(dllimport) void importedFuncTmplDecl(); 416 template<typename T> __declspec(dllimport) inline void importedFuncTmpl() {} 417 418 // Import implicit instantiation of an imported function template. 419 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmplDecl@UImplicitInst_Imported@@@@YAXXZ"() 420 // GNU-DAG: declare dllimport void @_Z20importedFuncTmplDeclI21ImplicitInst_ImportedEvv() 421 USE(importedFuncTmplDecl<ImplicitInst_Imported>) 422 423 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UImplicitInst_Imported@@@@YAXXZ"() 424 // GNU-DAG: define linkonce_odr void @_Z16importedFuncTmplI21ImplicitInst_ImportedEvv() 425 // MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmpl@UImplicitInst_Imported@@@@YAXXZ"() 426 // GO1-DAG: define linkonce_odr void @_Z16importedFuncTmplI21ImplicitInst_ImportedEvv() 427 USE(importedFuncTmpl<ImplicitInst_Imported>) 428 429 // Import explicit instantiation declaration of an imported function template. 430 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UExplicitDecl_Imported@@@@YAXXZ"() 431 // GNU-DAG: declare void @_Z16importedFuncTmplI21ExplicitDecl_ImportedEvv() 432 // MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmpl@UExplicitDecl_Imported@@@@YAXXZ"() 433 // GO1-DAG: define available_externally void @_Z16importedFuncTmplI21ExplicitDecl_ImportedEvv() 434 extern template void importedFuncTmpl<ExplicitDecl_Imported>(); 435 USE(importedFuncTmpl<ExplicitDecl_Imported>) 436 437 // Import explicit instantiation definition of an imported function template. 438 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UExplicitInst_Imported@@@@YAXXZ"() 439 // GNU-DAG: define weak_odr void @_Z16importedFuncTmplI21ExplicitInst_ImportedEvv() 440 // MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmpl@UExplicitInst_Imported@@@@YAXXZ"() 441 // GO1-DAG: define weak_odr void @_Z16importedFuncTmplI21ExplicitInst_ImportedEvv() 442 template void importedFuncTmpl<ExplicitInst_Imported>(); 443 USE(importedFuncTmpl<ExplicitInst_Imported>) 444 445 446 // Import specialization of an imported function template. 447 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_Imported@@@@YAXXZ"() 448 // GNU-DAG: declare dllimport void @_Z20importedFuncTmplDeclI21ExplicitSpec_ImportedEvv() 449 template<> __declspec(dllimport) void importedFuncTmplDecl<ExplicitSpec_Imported>(); 450 USE(importedFuncTmplDecl<ExplicitSpec_Imported>) 451 452 // MSC-DAG-FIXME: declare dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_Def_Imported@@@@YAXXZ"() 453 // MO1-DAG-FIXME: define available_externally dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_Def_Imported@@@@YAXXZ"() 454 #ifdef MSABI 455 //template<> __declspec(dllimport) void importedFuncTmplDecl<ExplicitSpec_Def_Imported>() {} 456 //USE(importedFuncTmplDecl<ExplicitSpec_Def_Imported>) 457 #endif 458 459 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"() 460 // GNU-DAG: define linkonce_odr void @_Z20importedFuncTmplDeclI31ExplicitSpec_InlineDef_ImportedEvv() 461 // MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"() 462 // GO1-DAG: define linkonce_odr void @_Z20importedFuncTmplDeclI31ExplicitSpec_InlineDef_ImportedEvv() 463 template<> __declspec(dllimport) inline void importedFuncTmplDecl<ExplicitSpec_InlineDef_Imported>() {} 464 USE(importedFuncTmplDecl<ExplicitSpec_InlineDef_Imported>) 465 466 467 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_Imported@@@@YAXXZ"() 468 // GNU-DAG: declare dllimport void @_Z16importedFuncTmplI21ExplicitSpec_ImportedEvv() 469 template<> __declspec(dllimport) void importedFuncTmpl<ExplicitSpec_Imported>(); 470 USE(importedFuncTmpl<ExplicitSpec_Imported>) 471 472 // MSC-DAG-FIXME: declare dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_Def_Imported@@@@YAXXZ"() 473 // MO1-DAG-FIXME: define available_externally dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_Def_Imported@@@@YAXXZ"() 474 #ifdef MSABI 475 //template<> __declspec(dllimport) void importedFuncTmpl<ExplicitSpec_Def_Imported>() {} 476 //USE(importedFuncTmpl<ExplicitSpec_Def_Imported>) 477 #endif 478 479 // MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"() 480 // GNU-DAG: define linkonce_odr void @_Z16importedFuncTmplI31ExplicitSpec_InlineDef_ImportedEvv() 481 // MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"() 482 // GO1-DAG: define linkonce_odr void @_Z16importedFuncTmplI31ExplicitSpec_InlineDef_ImportedEvv() 483 template<> __declspec(dllimport) inline void importedFuncTmpl<ExplicitSpec_InlineDef_Imported>() {} 484 USE(importedFuncTmpl<ExplicitSpec_InlineDef_Imported>) 485 486 487 // Not importing specialization of an imported function template without 488 // explicit dllimport. 489 // MSC-DAG: define void @"\01??$importedFuncTmpl@UExplicitSpec_NotImported@@@@YAXXZ"() 490 // GNU-DAG: define void @_Z16importedFuncTmplI24ExplicitSpec_NotImportedEvv() 491 template<> void importedFuncTmpl<ExplicitSpec_NotImported>() {} 492 USE(importedFuncTmpl<ExplicitSpec_NotImported>) 493 494 495 // Import explicit instantiation declaration of a non-imported function template. 496 // MSC-DAG: declare dllimport void @"\01??$funcTmpl@UExplicitDecl_Imported@@@@YAXXZ"() 497 // MSC-DAG: declare dllimport void @"\01??$inlineFuncTmpl@UExplicitDecl_Imported@@@@YAXXZ"() 498 // GNU-DAG: declare dllimport void @_Z8funcTmplI21ExplicitDecl_ImportedEvv() 499 // GNU-DAG: declare void @_Z14inlineFuncTmplI21ExplicitDecl_ImportedEvv() 500 // MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmpl@UExplicitDecl_Imported@@@@YAXXZ"() 501 // GO1-DAG: define available_externally void @_Z14inlineFuncTmplI21ExplicitDecl_ImportedEvv() 502 extern template __declspec(dllimport) void funcTmpl<ExplicitDecl_Imported>(); 503 extern template __declspec(dllimport) void inlineFuncTmpl<ExplicitDecl_Imported>(); 504 USE(funcTmpl<ExplicitDecl_Imported>) 505 USE(inlineFuncTmpl<ExplicitDecl_Imported>) 506 507 508 // Import explicit instantiation definition of a non-imported function template. 509 // MSC-DAG: declare dllimport void @"\01??$funcTmpl@UExplicitInst_Imported@@@@YAXXZ"() 510 // MSC-DAG: declare dllimport void @"\01??$inlineFuncTmpl@UExplicitInst_Imported@@@@YAXXZ"() 511 // GNU-DAG: declare dllimport void @_Z8funcTmplI21ExplicitInst_ImportedEvv() 512 // GNU-DAG: define weak_odr void @_Z14inlineFuncTmplI21ExplicitInst_ImportedEvv() 513 // MO1-DAG: define available_externally dllimport void @"\01??$funcTmpl@UExplicitInst_Imported@@@@YAXXZ"() 514 // MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmpl@UExplicitInst_Imported@@@@YAXXZ"() 515 // GO1-DAG: define available_externally dllimport void @_Z8funcTmplI21ExplicitInst_ImportedEvv() 516 // GO1-DAG: define weak_odr void @_Z14inlineFuncTmplI21ExplicitInst_ImportedEvv() 517 template __declspec(dllimport) void funcTmpl<ExplicitInst_Imported>(); 518 template __declspec(dllimport) void inlineFuncTmpl<ExplicitInst_Imported>(); 519 USE(funcTmpl<ExplicitInst_Imported>) 520 USE(inlineFuncTmpl<ExplicitInst_Imported>) 521 522 523 // Import specialization of a non-imported function template. 524 // MSC-DAG: declare dllimport void @"\01??$funcTmpl@UExplicitSpec_Imported@@@@YAXXZ"() 525 // GNU-DAG: declare dllimport void @_Z8funcTmplI21ExplicitSpec_ImportedEvv() 526 template<> __declspec(dllimport) void funcTmpl<ExplicitSpec_Imported>(); 527 USE(funcTmpl<ExplicitSpec_Imported>) 528 529 // MSC-DAG-FIXME: declare dllimport void @"\01??$funcTmpl@UExplicitSpec_Def_Imported@@@@YAXXZ"() 530 // MO1-DAG-FIXME: define available_externally dllimport void @"\01??$funcTmpl@UExplicitSpec_Def_Imported@@@@YAXXZ"() 531 #ifdef MSABI 532 //template<> __declspec(dllimport) void funcTmpl<ExplicitSpec_Def_Imported>() {} 533 //USE(funcTmpl<ExplicitSpec_Def_Imported>) 534 #endif 535 536 // MSC-DAG: declare dllimport void @"\01??$funcTmpl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"() 537 // GNU-DAG: define linkonce_odr void @_Z8funcTmplI31ExplicitSpec_InlineDef_ImportedEvv() 538 // MO1-DAG: define available_externally dllimport void @"\01??$funcTmpl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"() 539 // GO1-DAG: define linkonce_odr void @_Z8funcTmplI31ExplicitSpec_InlineDef_ImportedEvv() 540 template<> __declspec(dllimport) inline void funcTmpl<ExplicitSpec_InlineDef_Imported>() {} 541 USE(funcTmpl<ExplicitSpec_InlineDef_Imported>) 542 543 544 545 //===----------------------------------------------------------------------===// 546 // Classes 547 //===----------------------------------------------------------------------===// 548 549 struct __declspec(dllimport) T { 550 void a() {} 551 // MO1-DAG: define available_externally dllimport x86_thiscallcc void @"\01?a@T@@QAEXXZ" 552 553 static int b; 554 // MO1-DAG: @"\01?b@T@@2HA" = external dllimport global i32 555 556 T& operator=(T&) = default; 557 // MO1-DAG: define available_externally dllimport x86_thiscallcc dereferenceable({{[0-9]+}}) %struct.T* @"\01??4T@@QAEAAU0@AAU0@@Z" 558 559 T& operator=(T&&) = default; 560 // Note: Don't mark inline move operators dllimport because current MSVC versions don't export them. 561 // M18-DAG: define linkonce_odr x86_thiscallcc dereferenceable({{[0-9]+}}) %struct.T* @"\01??4T@@QAEAAU0@$$QAU0@@Z" 562 // M19-DAG: define available_externally dllimport x86_thiscallcc dereferenceable({{[0-9]+}}) %struct.T* @"\01??4T@@QAEAAU0@$$QAU0@@Z" 563 }; 564 USEMEMFUNC(T, a) 565 USEVAR(T::b) 566 USECOPYASSIGN(T) 567 USEMOVEASSIGN(T) 568 569 template <typename T> struct __declspec(dllimport) U { void foo() {} }; 570 // MO1-DAG: define available_externally dllimport x86_thiscallcc void @"\01?foo@?$U@H@@QAEXXZ" 571 struct __declspec(dllimport) V : public U<int> { }; 572 USEMEMFUNC(V, foo) 573 574 struct __declspec(dllimport) W { virtual void foo() {} }; 575 USECLASS(W) 576 // vftable: 577 // MO1-DAG: @"\01??_7W@@6B@" = available_externally dllimport unnamed_addr constant [1 x i8*] [i8* bitcast (void (%struct.W*)* @"\01?foo@W@@UAEXXZ" to i8*)] 578 // GO1-DAG: @_ZTV1W = available_externally dllimport unnamed_addr constant [3 x i8*] [i8* null, i8* null, i8* bitcast (void (%struct.W*)* @_ZN1W3fooEv to i8*)] 579 580 struct __declspec(dllimport) KeyFuncClass { 581 constexpr KeyFuncClass() {} 582 virtual void foo(); 583 }; 584 constexpr KeyFuncClass keyFuncClassVar; 585 // G32-DAG: @_ZTV12KeyFuncClass = external dllimport unnamed_addr constant [3 x i8*] 586 587 struct __declspec(dllimport) X : public virtual W {}; 588 USECLASS(X) 589 // vbtable: 590 // MO1-DAG: @"\01??_8X@@7B@" = available_externally dllimport unnamed_addr constant [2 x i32] [i32 0, i32 4] 591 592 struct __declspec(dllimport) Y { 593 int x; 594 }; 595 596 struct __declspec(dllimport) Z { virtual ~Z() {} }; 597 USECLASS(Z) 598 // User-defined dtor: 599 // MO1-DAG: define available_externally dllimport x86_thiscallcc void @"\01??1Z@@UAE@XZ" 600 601 namespace DontUseDtorAlias { 602 struct __declspec(dllimport) A { ~A(); }; 603 struct __declspec(dllimport) B : A { ~B(); }; 604 inline A::~A() { } 605 inline B::~B() { } 606 // Emit a real definition of B's constructor; don't alias it to A's. 607 // MO1-DAG: available_externally dllimport x86_thiscallcc void @"\01??1B@DontUseDtorAlias@@QAE@XZ" 608 USECLASS(B) 609 } 610 611 namespace Vtordisp { 612 // Don't dllimport the vtordisp. 613 // MO1-DAG: define linkonce_odr x86_thiscallcc void @"\01?f@?$C@D@Vtordisp@@$4PPPPPPPM@A@AEXXZ" 614 615 class Base { 616 virtual void f() {} 617 }; 618 template <typename T> 619 class __declspec(dllimport) C : virtual public Base { 620 public: 621 C() {} 622 virtual void f() {} 623 }; 624 template class C<char>; 625 } 626 627 namespace ClassTemplateStaticDef { 628 // Regular template static field: 629 template <typename T> struct __declspec(dllimport) S { 630 static int x; 631 }; 632 template <typename T> int S<T>::x; 633 // MSC-DAG: @"\01?x@?$S@H@ClassTemplateStaticDef@@2HA" = available_externally dllimport global i32 0 634 int f() { return S<int>::x; } 635 636 // Partial class template specialization static field: 637 template <typename A> struct T; 638 template <typename A> struct __declspec(dllimport) T<A*> { 639 static int x; 640 }; 641 template <typename A> int T<A*>::x; 642 // GNU-DAG: @_ZN22ClassTemplateStaticDef1TIPvE1xE = available_externally dllimport global i32 0 643 int g() { return T<void*>::x; } 644 } 645 646 namespace PR19933 { 647 // Don't dynamically initialize dllimport vars. 648 // MSC2-NOT: @llvm.global_ctors 649 // GNU2-NOT: @llvm.global_ctors 650 651 struct NonPOD { NonPOD(); }; 652 template <typename T> struct A { static NonPOD x; }; 653 template <typename T> NonPOD A<T>::x; 654 template struct __declspec(dllimport) A<int>; 655 // MSC-DAG: @"\01?x@?$A@H@PR19933@@2UNonPOD@2@A" = available_externally dllimport global %"struct.PR19933::NonPOD" zeroinitializer 656 657 int f(); 658 template <typename T> struct B { static int x; }; 659 template <typename T> int B<T>::x = f(); 660 template struct __declspec(dllimport) B<int>; 661 // MSC-DAG: @"\01?x@?$B@H@PR19933@@2HA" = available_externally dllimport global i32 0 662 663 constexpr int g() { return 42; } 664 template <typename T> struct C { static int x; }; 665 template <typename T> int C<T>::x = g(); 666 template struct __declspec(dllimport) C<int>; 667 // MSC-DAG: @"\01?x@?$C@H@PR19933@@2HA" = available_externally dllimport global i32 42 668 669 template <int I> struct D { static int x, y; }; 670 template <int I> int D<I>::x = I + 1; 671 template <int I> int D<I>::y = I + f(); 672 template struct __declspec(dllimport) D<42>; 673 // MSC-DAG: @"\01?x@?$D@$0CK@@PR19933@@2HA" = available_externally dllimport global i32 43 674 // MSC-DAG: @"\01?y@?$D@$0CK@@PR19933@@2HA" = available_externally dllimport global i32 0 675 } 676 677 namespace PR21355 { 678 struct __declspec(dllimport) S { 679 virtual ~S(); 680 }; 681 S::~S() {} 682 683 // S::~S is a key function, so we would ordinarily emit a strong definition for 684 // the vtable. However, S is imported, so the vtable should be too. 685 686 // GNU-DAG: @_ZTVN7PR213551SE = available_externally dllimport unnamed_addr constant [4 x i8*] 687 } 688 689 namespace PR21366 { 690 struct __declspec(dllimport) S { 691 void outOfLineMethod(); 692 void inlineMethod() {} 693 inline void anotherInlineMethod(); 694 void outOfClassInlineMethod(); 695 }; 696 void S::anotherInlineMethod() {} 697 inline void S::outOfClassInlineMethod() {} 698 } 699 700 // MS ignores DLL attributes on partial specializations. 701 template <typename T> struct PartiallySpecializedClassTemplate {}; 702 template <typename T> struct __declspec(dllimport) PartiallySpecializedClassTemplate<T*> { void f(); }; 703 USEMEMFUNC(PartiallySpecializedClassTemplate<void*>, f); 704 // M32-DAG: declare x86_thiscallcc void @"\01?f@?$PartiallySpecializedClassTemplate@PAX@@QAEXXZ" 705 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN33PartiallySpecializedClassTemplateIPvE1fEv 706 707 // Attributes on explicit specializations are honored. 708 template <typename T> struct ExplicitlySpecializedClassTemplate {}; 709 template <> struct __declspec(dllimport) ExplicitlySpecializedClassTemplate<void*> { void f(); }; 710 USEMEMFUNC(ExplicitlySpecializedClassTemplate<void*>, f); 711 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?f@?$ExplicitlySpecializedClassTemplate@PAX@@QAEXXZ" 712 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN34ExplicitlySpecializedClassTemplateIPvE1fEv 713 714 // MS inherits DLL attributes to partial specializations. 715 template <typename T> struct __declspec(dllimport) PartiallySpecializedImportedClassTemplate {}; 716 template <typename T> struct PartiallySpecializedImportedClassTemplate<T*> { void f() {} }; 717 USEMEMFUNC(PartiallySpecializedImportedClassTemplate<void*>, f); 718 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?f@?$PartiallySpecializedImportedClassTemplate@PAX@@QAEXXZ" 719 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN41PartiallySpecializedImportedClassTemplateIPvE1fEv 720 721 // Attributes on the instantiation take precedence over attributes on the template. 722 template <typename T> struct __declspec(dllexport) ExplicitlyInstantiatedWithDifferentAttr { void f() {} }; 723 template struct __declspec(dllimport) ExplicitlyInstantiatedWithDifferentAttr<int>; 724 USEMEMFUNC(ExplicitlyInstantiatedWithDifferentAttr<int>, f); 725 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?f@?$ExplicitlyInstantiatedWithDifferentAttr@H@@QAEXXZ" 726 727 template <typename T> struct ExplicitInstantiationDeclImportedDefTemplate { void f() {} ExplicitInstantiationDeclImportedDefTemplate() {}}; 728 extern template struct ExplicitInstantiationDeclImportedDefTemplate<int>; 729 template struct __declspec(dllimport) ExplicitInstantiationDeclImportedDefTemplate<int>; 730 USECLASS(ExplicitInstantiationDeclImportedDefTemplate<int>); 731 USEMEMFUNC(ExplicitInstantiationDeclImportedDefTemplate<int>, f); 732 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?f@?$ExplicitInstantiationDeclImportedDefTemplate@H@@QAEXXZ" 733 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc %struct.ExplicitInstantiationDeclImportedDefTemplate* @"\01??0?$ExplicitInstantiationDeclImportedDefTemplate@H@@QAE@XZ" 734 // G32-DAG: define weak_odr x86_thiscallcc void @_ZN44ExplicitInstantiationDeclImportedDefTemplateIiE1fEv 735 736 template <typename T> struct __declspec(dllimport) ExplicitInstantiationDeclExportedDefImportedTemplate { void f() {} ExplicitInstantiationDeclExportedDefImportedTemplate() {} }; 737 extern template struct __declspec(dllimport) ExplicitInstantiationDeclExportedDefImportedTemplate <int>; 738 template struct __declspec(dllexport) ExplicitInstantiationDeclExportedDefImportedTemplate<int>; 739 USECLASS(ExplicitInstantiationDeclExportedDefImportedTemplate<int>); 740 USEMEMFUNC(ExplicitInstantiationDeclExportedDefImportedTemplate<int>, f); 741 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?f@?$ExplicitInstantiationDeclExportedDefImportedTemplate@H@@QAEXXZ" 742 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc %struct.ExplicitInstantiationDeclExportedDefImportedTemplate* @"\01??0?$ExplicitInstantiationDeclExportedDefImportedTemplate@H@@QAE@XZ" 743 744 template <typename T> struct PR23770BaseTemplate { void f() {} }; 745 template <typename T> struct PR23770DerivedTemplate : PR23770BaseTemplate<int> {}; 746 extern template struct PR23770DerivedTemplate<int>; 747 template struct __declspec(dllimport) PR23770DerivedTemplate<int>; 748 USEMEMFUNC(PR23770BaseTemplate<int>, f); 749 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?f@?$PR23770BaseTemplate@H@@QAEXXZ" 750 751 //===----------------------------------------------------------------------===// 752 // Classes with template base classes 753 //===----------------------------------------------------------------------===// 754 755 template <typename T> struct ClassTemplate { void func() {} }; 756 template <typename T> struct __declspec(dllexport) ExportedClassTemplate { void func(); }; 757 template <typename T> void ExportedClassTemplate<T>::func() {} 758 template <typename T> struct __declspec(dllimport) ImportedClassTemplate { void func(); }; 759 760 template <typename T> struct ExplicitlySpecializedTemplate { void func() {} }; 761 template <> struct ExplicitlySpecializedTemplate<int> { void func() {} }; 762 template <typename T> struct ExplicitlyExportSpecializedTemplate { void func() {} }; 763 template <> struct __declspec(dllexport) ExplicitlyExportSpecializedTemplate<int> { void func(); }; 764 void ExplicitlyExportSpecializedTemplate<int>::func() {} 765 template <typename T> struct ExplicitlyImportSpecializedTemplate { void func() {} }; 766 template <> struct __declspec(dllimport) ExplicitlyImportSpecializedTemplate<int> { void func(); }; 767 768 template <typename T> struct ExplicitlyInstantiatedTemplate { void func() {} }; 769 template struct ExplicitlyInstantiatedTemplate<int>; 770 template <typename T> struct ExplicitlyExportInstantiatedTemplate { void func(); }; 771 template <typename T> void ExplicitlyExportInstantiatedTemplate<T>::func() {} 772 template struct __declspec(dllexport) ExplicitlyExportInstantiatedTemplate<int>; 773 template <typename T> struct ExplicitlyImportInstantiatedTemplate { void func(); }; 774 template struct __declspec(dllimport) ExplicitlyImportInstantiatedTemplate<int>; 775 776 777 // MS: ClassTemplate<int> gets imported. 778 struct __declspec(dllimport) DerivedFromTemplate : public ClassTemplate<int> {}; 779 USEMEMFUNC(ClassTemplate<int>, func) 780 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$ClassTemplate@H@@QAEXXZ" 781 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIiE4funcEv 782 783 // ImportedTemplate is explicitly imported. 784 struct __declspec(dllimport) DerivedFromImportedTemplate : public ImportedClassTemplate<int> {}; 785 USEMEMFUNC(ImportedClassTemplate<int>, func) 786 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?func@?$ImportedClassTemplate@H@@QAEXXZ" 787 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN21ImportedClassTemplateIiE4funcEv 788 789 // ExportedTemplate is explicitly exported. 790 struct __declspec(dllimport) DerivedFromExportedTemplate : public ExportedClassTemplate<int> {}; 791 USEMEMFUNC(ExportedClassTemplate<int>, func) 792 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExportedClassTemplate@H@@QAEXXZ" 793 // G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN21ExportedClassTemplateIiE4funcEv 794 795 // Base class already implicitly instantiated without attribute. 796 struct DerivedFromTemplateD : public ClassTemplate<double> {}; 797 struct __declspec(dllimport) DerivedFromTemplateD2 : public ClassTemplate<double> {}; 798 USEMEMFUNC(ClassTemplate<double>, func) 799 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?func@?$ClassTemplate@N@@QAEXXZ" 800 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIdE4funcEv 801 802 // MS: Base class already instantiated with dfferent attribute. 803 struct __declspec(dllexport) DerivedFromTemplateB : public ClassTemplate<bool> {}; 804 struct __declspec(dllimport) DerivedFromTemplateB2 : public ClassTemplate<bool> {}; 805 USEMEMFUNC(ClassTemplate<bool>, func) 806 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ClassTemplate@_N@@QAEXXZ" 807 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIbE4funcEv 808 809 // Base class already specialized without dll attribute. 810 struct __declspec(dllimport) DerivedFromExplicitlySpecializedTemplate : public ExplicitlySpecializedTemplate<int> {}; 811 USEMEMFUNC(ExplicitlySpecializedTemplate<int>, func) 812 // M32-DAG: define linkonce_odr x86_thiscallcc void @"\01?func@?$ExplicitlySpecializedTemplate@H@@QAEXXZ" 813 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN29ExplicitlySpecializedTemplateIiE4funcEv 814 815 // Base class alredy specialized with export attribute. 816 struct __declspec(dllimport) DerivedFromExplicitlyExportSpecializedTemplate : public ExplicitlyExportSpecializedTemplate<int> {}; 817 USEMEMFUNC(ExplicitlyExportSpecializedTemplate<int>, func) 818 // M32-DAG: define dllexport x86_thiscallcc void @"\01?func@?$ExplicitlyExportSpecializedTemplate@H@@QAEXXZ" 819 // G32-DAG: define dllexport x86_thiscallcc void @_ZN35ExplicitlyExportSpecializedTemplateIiE4funcEv 820 821 // Base class already specialized with import attribute. 822 struct __declspec(dllimport) DerivedFromExplicitlyImportSpecializedTemplate : public ExplicitlyImportSpecializedTemplate<int> {}; 823 USEMEMFUNC(ExplicitlyImportSpecializedTemplate<int>, func) 824 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?func@?$ExplicitlyImportSpecializedTemplate@H@@QAEXXZ" 825 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN35ExplicitlyImportSpecializedTemplateIiE4funcEv 826 827 // Base class already instantiated without dll attribute. 828 struct __declspec(dllimport) DerivedFromExplicitlyInstantiatedTemplate : public ExplicitlyInstantiatedTemplate<int> {}; 829 USEMEMFUNC(ExplicitlyInstantiatedTemplate<int>, func) 830 // M32-DAG: define weak_odr x86_thiscallcc void @"\01?func@?$ExplicitlyInstantiatedTemplate@H@@QAEXXZ" 831 // G32-DAG: define weak_odr x86_thiscallcc void @_ZN30ExplicitlyInstantiatedTemplateIiE4funcEv 832 833 // Base class already instantiated with export attribute. 834 struct __declspec(dllimport) DerivedFromExplicitlyExportInstantiatedTemplate : public ExplicitlyExportInstantiatedTemplate<int> {}; 835 USEMEMFUNC(ExplicitlyExportInstantiatedTemplate<int>, func) 836 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExplicitlyExportInstantiatedTemplate@H@@QAEXXZ" 837 // G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN36ExplicitlyExportInstantiatedTemplateIiE4funcEv 838 839 // Base class already instantiated with import attribute. 840 struct __declspec(dllimport) DerivedFromExplicitlyImportInstantiatedTemplate : public ExplicitlyImportInstantiatedTemplate<int> {}; 841 USEMEMFUNC(ExplicitlyImportInstantiatedTemplate<int>, func) 842 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?func@?$ExplicitlyImportInstantiatedTemplate@H@@QAEXXZ" 843 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN36ExplicitlyImportInstantiatedTemplateIiE4funcEv 844 845 // MS: A dll attribute propagates through multiple levels of instantiation. 846 template <typename T> struct TopClass { void func() {} }; 847 template <typename T> struct MiddleClass : public TopClass<T> { }; 848 struct __declspec(dllimport) BottomClass : public MiddleClass<int> { }; 849 USEMEMFUNC(TopClass<int>, func) 850 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$TopClass@H@@QAEXXZ" 851 // G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN8TopClassIiE4funcEv 852 853 template <typename T> struct ExplicitInstantiationDeclTemplateBase { void func() {} }; 854 extern template struct ExplicitInstantiationDeclTemplateBase<int>; 855 struct __declspec(dllimport) DerivedFromExplicitInstantiationDeclTemplateBase : public ExplicitInstantiationDeclTemplateBase<int> {}; 856 template struct ExplicitInstantiationDeclTemplateBase<int>; 857 USEMEMFUNC(ExplicitInstantiationDeclTemplateBase<int>, func) 858 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?func@?$ExplicitInstantiationDeclTemplateBase@H@@QAEXXZ" 859 // G32-DAG: define weak_odr x86_thiscallcc void @_ZN37ExplicitInstantiationDeclTemplateBaseIiE4funcEv 860 861 template <typename T> struct ExplicitInstantiationDeclTemplateBase2 { void func() {} }; 862 extern template struct ExplicitInstantiationDeclTemplateBase2<int>; 863 struct __declspec(dllimport) DerivedFromExplicitInstantiationDeclTemplateBase2 : public ExplicitInstantiationDeclTemplateBase2<int> {}; 864 template struct __declspec(dllexport) ExplicitInstantiationDeclTemplateBase2<int>; 865 USEMEMFUNC(ExplicitInstantiationDeclTemplateBase2<int>, func) 866 // M32-DAG: declare dllimport x86_thiscallcc void @"\01?func@?$ExplicitInstantiationDeclTemplateBase2@H@@QAEXXZ" 867 // G32-DAG: define weak_odr x86_thiscallcc void @_ZN38ExplicitInstantiationDeclTemplateBase2IiE4funcEv 868