1// RUN: %clang_cc1 -triple i686-windows-msvc -emit-llvm -std=c++1y -O0 -o - %s | FileCheck --check-prefix=MSC --check-prefix=M32 %s 2// RUN: %clang_cc1 -triple x86_64-windows-msvc -emit-llvm -std=c++1y -O0 -o - %s | FileCheck --check-prefix=MSC --check-prefix=M64 %s 3// RUN: %clang_cc1 -triple i686-windows-gnu -emit-llvm -std=c++1y -O0 -o - %s | FileCheck --check-prefix=GNU --check-prefix=G32 %s 4// RUN: %clang_cc1 -triple x86_64-windows-gnu -emit-llvm -std=c++1y -O0 -o - %s | FileCheck --check-prefix=GNU --check-prefix=G64 %s 5 6// RUN: %clang_cc1 -triple i686-pc-win32 -O1 -mconstructor-aliases -std=c++1y -emit-llvm -o - %s | FileCheck %s --check-prefix=MSC --check-prefix=M32 7 8// Helper structs to make templates more expressive. 9struct ImplicitInst_Exported {}; 10struct ExplicitDecl_Exported {}; 11struct ExplicitInst_Exported {}; 12struct ExplicitSpec_Exported {}; 13struct ExplicitSpec_Def_Exported {}; 14struct ExplicitSpec_InlineDef_Exported {}; 15struct ExplicitSpec_NotExported {}; 16struct External { int v; }; 17 18#define JOIN2(x, y) x##y 19#define JOIN(x, y) JOIN2(x, y) 20#define UNIQ(name) JOIN(name, __LINE__) 21#define USEVAR(var) int UNIQ(use)() { return var; } 22#define USE(func) void UNIQ(use)() { func(); } 23#define USEMEMFUNC(class, func) void (class::*UNIQ(use)())() { return &class::func; } 24#define INSTVAR(var) template int var; 25#define INST(func) template void func(); 26 27// The vftable for struct W is comdat largest because we have RTTI. 28// M32-DAG: $"\01??_7W@@6B@" = comdat largest 29 30 31//===----------------------------------------------------------------------===// 32// Globals 33//===----------------------------------------------------------------------===// 34 35// Declarations are not exported. 36// MSC-NOT: @"\01?ExternGlobalDecl@@3HA" 37// GNU-NOT: @ExternGlobalDecl 38__declspec(dllexport) extern int ExternGlobalDecl; 39 40// dllexport implies a definition. 41// MSC-DAG: @"\01?GlobalDef@@3HA" = dllexport global i32 0, align 4 42// GNU-DAG: @GlobalDef = dllexport global i32 0, align 4 43__declspec(dllexport) int GlobalDef; 44 45// Export definition. 46// MSC-DAG: @"\01?GlobalInit1@@3HA" = dllexport global i32 1, align 4 47// GNU-DAG: @GlobalInit1 = dllexport global i32 1, align 4 48__declspec(dllexport) int GlobalInit1 = 1; 49 50// MSC-DAG: @"\01?GlobalInit2@@3HA" = dllexport global i32 1, align 4 51// GNU-DAG: @GlobalInit2 = dllexport global i32 1, align 4 52int __declspec(dllexport) GlobalInit2 = 1; 53 54// Declare, then export definition. 55// MSC-DAG: @"\01?GlobalDeclInit@@3HA" = dllexport global i32 1, align 4 56// GNU-DAG: @GlobalDeclInit = dllexport global i32 1, align 4 57__declspec(dllexport) extern int GlobalDeclInit; 58int GlobalDeclInit = 1; 59 60// Redeclarations 61// MSC-DAG: @"\01?GlobalRedecl1@@3HA" = dllexport global i32 0, align 4 62// GNU-DAG: @GlobalRedecl1 = dllexport global i32 0, align 4 63__declspec(dllexport) extern int GlobalRedecl1; 64__declspec(dllexport) int GlobalRedecl1; 65 66// MSC-DAG: @"\01?GlobalRedecl2@@3HA" = dllexport global i32 0, align 4 67// GNU-DAG: @GlobalRedecl2 = dllexport global i32 0, align 4 68__declspec(dllexport) extern int GlobalRedecl2; 69 int GlobalRedecl2; 70 71// MSC-DAG: @"\01?ExternalGlobal@ns@@3HA" = dllexport global i32 0, align 4 72// GNU-DAG: @_ZN2ns14ExternalGlobalE = dllexport global i32 0, align 4 73namespace ns { __declspec(dllexport) int ExternalGlobal; } 74 75// MSC-DAG: @"\01?ExternalAutoTypeGlobal@@3UExternal@@A" = dllexport global %struct.External zeroinitializer, align 4 76// GNU-DAG: @ExternalAutoTypeGlobal = dllexport global %struct.External zeroinitializer, align 4 77__declspec(dllexport) auto ExternalAutoTypeGlobal = External(); 78 79int f(); 80// MSC-DAG: @"\01?x@?0??nonInlineStaticLocalsFunc@@YAHXZ@4HA" = internal {{(unnamed_addr )*}}global i32 0 81// MSC-DAG: @"\01?$S1@?0??nonInlineStaticLocalsFunc@@YAHXZ@4IA" = internal {{(unnamed_addr )*}}global i32 0 82int __declspec(dllexport) nonInlineStaticLocalsFunc() { 83 static int x = f(); 84 return x++; 85}; 86 87// MSC-DAG: @"\01?x@?1??inlineStaticLocalsFunc@@YAHXZ@4HA" = weak_odr dllexport global i32 0 88// MSC-DAG: @"\01??_B?1??inlineStaticLocalsFunc@@YAHXZ@51" = weak_odr dllexport global i32 0 89// Note: MinGW doesn't seem to export the static local here. 90inline int __declspec(dllexport) inlineStaticLocalsFunc() { 91 static int x = f(); 92 return x++; 93} 94 95 96 97//===----------------------------------------------------------------------===// 98// Variable templates 99//===----------------------------------------------------------------------===// 100 101// Declarations are not exported. 102 103// dllexport implies a definition. 104// MSC-NOT: @"\01??$VarTmplDef@UExplicitInst_Exported@@@@3HA" 105// GNU-NOT: @_Z10VarTmplDefI21ExplicitInst_ExportedE 106template<typename T> __declspec(dllexport) int VarTmplDef; 107INSTVAR(VarTmplDef<ExplicitInst_Exported>) 108 109// MSC-DAG: @"\01??$VarTmplImplicitDef@UImplicitInst_Exported@@@@3HA" = external dllexport global 110// GNU-DAG: @_Z18VarTmplImplicitDefI21ImplicitInst_ExportedE = external dllexport global 111template<typename T> __declspec(dllexport) int VarTmplImplicitDef; 112USEVAR(VarTmplImplicitDef<ImplicitInst_Exported>) 113 114// Export definition. 115// MSC-DAG: @"\01??$VarTmplInit1@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 116// GNU-DAG: @_Z12VarTmplInit1I21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 117template<typename T> __declspec(dllexport) int VarTmplInit1 = 1; 118INSTVAR(VarTmplInit1<ExplicitInst_Exported>) 119 120// MSC-DAG: @"\01??$VarTmplInit2@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 121// GNU-DAG: @_Z12VarTmplInit2I21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 122template<typename T> int __declspec(dllexport) VarTmplInit2 = 1; 123INSTVAR(VarTmplInit2<ExplicitInst_Exported>) 124 125// Declare, then export definition. 126// MSC-DAG: @"\01??$VarTmplDeclInit@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 127// GNU-DAG: @_Z15VarTmplDeclInitI21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 128template<typename T> __declspec(dllexport) extern int VarTmplDeclInit; 129template<typename T> int VarTmplDeclInit = 1; 130INSTVAR(VarTmplDeclInit<ExplicitInst_Exported>) 131 132// Redeclarations 133// MSC-DAG: @"\01??$VarTmplRedecl1@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 134// GNU-DAG: @_Z14VarTmplRedecl1I21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 135template<typename T> __declspec(dllexport) extern int VarTmplRedecl1; 136template<typename T> __declspec(dllexport) int VarTmplRedecl1 = 1; 137INSTVAR(VarTmplRedecl1<ExplicitInst_Exported>) 138 139// MSC-DAG: @"\01??$VarTmplRedecl2@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 140// GNU-DAG: @_Z14VarTmplRedecl2I21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 141template<typename T> __declspec(dllexport) extern int VarTmplRedecl2; 142template<typename T> int VarTmplRedecl2 = 1; 143INSTVAR(VarTmplRedecl2<ExplicitInst_Exported>) 144 145// MSC-DAG: @"\01??$ExternalVarTmpl@UExplicitInst_Exported@@@ns@@3HA" = weak_odr dllexport global i32 1, align 4 146// GNU-DAG: @_ZN2ns15ExternalVarTmplI21ExplicitInst_ExportedEE = weak_odr dllexport global i32 1, align 4 147namespace ns { template<typename T> __declspec(dllexport) int ExternalVarTmpl = 1; } 148INSTVAR(ns::ExternalVarTmpl<ExplicitInst_Exported>) 149 150// MSC-DAG: @"\01??$ExternalAutoTypeVarTmpl@UExplicitInst_Exported@@@@3UExternal@@A" = weak_odr dllexport global %struct.External zeroinitializer, align 4 151// GNU-DAG: @_Z23ExternalAutoTypeVarTmplI21ExplicitInst_ExportedE = weak_odr dllexport global %struct.External zeroinitializer, align 4 152template<typename T> __declspec(dllexport) auto ExternalAutoTypeVarTmpl = External(); 153template External ExternalAutoTypeVarTmpl<ExplicitInst_Exported>; 154 155 156template<typename T> int VarTmpl = 1; 157template<typename T> __declspec(dllexport) int ExportedVarTmpl = 1; 158 159// Export implicit instantiation of an exported variable template. 160// MSC-DAG: @"\01??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 161// GNU-DAG: @_Z15ExportedVarTmplI21ImplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 162USEVAR(ExportedVarTmpl<ImplicitInst_Exported>) 163 164// Export explicit instantiation declaration of an exported variable template. 165// MSC-DAG: @"\01??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 166// GNU-DAG: @_Z15ExportedVarTmplI21ExplicitDecl_ExportedE = weak_odr dllexport global i32 1, align 4 167extern template int ExportedVarTmpl<ExplicitDecl_Exported>; 168 template int ExportedVarTmpl<ExplicitDecl_Exported>; 169 170// Export explicit instantiation definition of an exported variable template. 171// MSC-DAG: @"\01??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 172// GNU-DAG: @_Z15ExportedVarTmplI21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 173template __declspec(dllexport) int ExportedVarTmpl<ExplicitInst_Exported>; 174 175// Export specialization of an exported variable template. 176// MSC-DAG: @"\01??$ExportedVarTmpl@UExplicitSpec_Exported@@@@3HA" = dllexport global i32 0, align 4 177// GNU-DAG: @_Z15ExportedVarTmplI21ExplicitSpec_ExportedE = dllexport global i32 0, align 4 178template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Exported>; 179 180// MSC-DAG: @"\01??$ExportedVarTmpl@UExplicitSpec_Def_Exported@@@@3HA" = dllexport global i32 1, align 4 181// GNU-DAG: @_Z15ExportedVarTmplI25ExplicitSpec_Def_ExportedE = dllexport global i32 1, align 4 182template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Def_Exported> = 1; 183 184// Not exporting specialization of an exported variable template without 185// explicit dllexport. 186// MSC-DAG: @"\01??$ExportedVarTmpl@UExplicitSpec_NotExported@@@@3HA" = global i32 0, align 4 187// GNU-DAG: @_Z15ExportedVarTmplI24ExplicitSpec_NotExportedE = global i32 0, align 4 188template<> int ExportedVarTmpl<ExplicitSpec_NotExported>; 189 190 191// Export explicit instantiation declaration of a non-exported variable template. 192// MSC-DAG: @"\01??$VarTmpl@UExplicitDecl_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 193// GNU-DAG: @_Z7VarTmplI21ExplicitDecl_ExportedE = weak_odr dllexport global i32 1, align 4 194extern template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>; 195 template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>; 196 197// Export explicit instantiation definition of a non-exported variable template. 198// MSC-DAG: @"\01??$VarTmpl@UExplicitInst_Exported@@@@3HA" = weak_odr dllexport global i32 1, align 4 199// GNU-DAG: @_Z7VarTmplI21ExplicitInst_ExportedE = weak_odr dllexport global i32 1, align 4 200template __declspec(dllexport) int VarTmpl<ExplicitInst_Exported>; 201 202// Export specialization of a non-exported variable template. 203// MSC-DAG: @"\01??$VarTmpl@UExplicitSpec_Exported@@@@3HA" = dllexport global i32 0, align 4 204// GNU-DAG: @_Z7VarTmplI21ExplicitSpec_ExportedE = dllexport global i32 0, align 4 205template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Exported>; 206 207// MSC-DAG: @"\01??$VarTmpl@UExplicitSpec_Def_Exported@@@@3HA" = dllexport global i32 1, align 4 208// GNU-DAG: @_Z7VarTmplI25ExplicitSpec_Def_ExportedE = dllexport global i32 1, align 4 209template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Def_Exported> = 1; 210 211 212 213//===----------------------------------------------------------------------===// 214// Functions 215//===----------------------------------------------------------------------===// 216 217// Declarations are not exported. 218 219// Export function definition. 220// MSC-DAG: define dllexport void @"\01?def@@YAXXZ"() 221// GNU-DAG: define dllexport void @_Z3defv() 222__declspec(dllexport) void def() {} 223 224// extern "C" 225// MSC-DAG: define dllexport void @externC() 226// GNU-DAG: define dllexport void @externC() 227extern "C" __declspec(dllexport) void externC() {} 228 229// Export inline function. 230// MSC-DAG: define weak_odr dllexport void @"\01?inlineFunc@@YAXXZ"() 231// GNU-DAG: define weak_odr dllexport void @_Z10inlineFuncv() 232__declspec(dllexport) inline void inlineFunc() {} 233 234// MSC-DAG: define weak_odr dllexport void @"\01?inlineDecl@@YAXXZ"() 235// GNU-DAG: define weak_odr dllexport void @_Z10inlineDeclv() 236__declspec(dllexport) inline void inlineDecl(); 237 void inlineDecl() {} 238 239// MSC-DAG: define weak_odr dllexport void @"\01?inlineDef@@YAXXZ"() 240// GNU-DAG: define weak_odr dllexport void @_Z9inlineDefv() 241__declspec(dllexport) void inlineDef(); 242 inline void inlineDef() {} 243 244// Redeclarations 245// MSC-DAG: define dllexport void @"\01?redecl1@@YAXXZ"() 246// GNU-DAG: define dllexport void @_Z7redecl1v() 247__declspec(dllexport) void redecl1(); 248__declspec(dllexport) void redecl1() {} 249 250// MSC-DAG: define dllexport void @"\01?redecl2@@YAXXZ"() 251// GNU-DAG: define dllexport void @_Z7redecl2v() 252__declspec(dllexport) void redecl2(); 253 void redecl2() {} 254 255// Friend functions 256// MSC-DAG: define dllexport void @"\01?friend1@@YAXXZ"() 257// GNU-DAG: define dllexport void @_Z7friend1v() 258// MSC-DAG: define dllexport void @"\01?friend2@@YAXXZ"() 259// GNU-DAG: define dllexport void @_Z7friend2v() 260struct FuncFriend { 261 friend __declspec(dllexport) void friend1(); 262 friend __declspec(dllexport) void friend2(); 263}; 264__declspec(dllexport) void friend1() {} 265 void friend2() {} 266 267// Implicit declarations can be redeclared with dllexport. 268// MSC-DAG: define dllexport noalias i8* @"\01??2@{{YAPAXI|YAPEAX_K}}@Z"( 269// GNU-DAG: define dllexport noalias i8* @_Znw{{[yj]}}( 270void* alloc(__SIZE_TYPE__ n); 271__declspec(dllexport) void* operator new(__SIZE_TYPE__ n) { return alloc(n); } 272 273// MSC-DAG: define dllexport void @"\01?externalFunc@ns@@YAXXZ"() 274// GNU-DAG: define dllexport void @_ZN2ns12externalFuncEv() 275namespace ns { __declspec(dllexport) void externalFunc() {} } 276 277 278 279//===----------------------------------------------------------------------===// 280// Function templates 281//===----------------------------------------------------------------------===// 282 283// Export function template definition. 284// MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplDef@UExplicitInst_Exported@@@@YAXXZ"() 285// GNU-DAG: define weak_odr dllexport void @_Z11funcTmplDefI21ExplicitInst_ExportedEvv() 286template<typename T> __declspec(dllexport) void funcTmplDef() {} 287INST(funcTmplDef<ExplicitInst_Exported>) 288 289// Export inline function template. 290// MSC-DAG: define weak_odr dllexport void @"\01??$inlineFuncTmpl1@UExplicitInst_Exported@@@@YAXXZ"() 291// GNU-DAG: define weak_odr dllexport void @_Z15inlineFuncTmpl1I21ExplicitInst_ExportedEvv() 292template<typename T> __declspec(dllexport) inline void inlineFuncTmpl1() {} 293INST(inlineFuncTmpl1<ExplicitInst_Exported>) 294 295// MSC-DAG: define weak_odr dllexport void @"\01??$inlineFuncTmpl2@UExplicitInst_Exported@@@@YAXXZ"() 296// GNU-DAG: define weak_odr dllexport void @_Z15inlineFuncTmpl2I21ExplicitInst_ExportedEvv() 297template<typename T> inline void __attribute__((dllexport)) inlineFuncTmpl2() {} 298INST(inlineFuncTmpl2<ExplicitInst_Exported>) 299 300// MSC-DAG: define weak_odr dllexport void @"\01??$inlineFuncTmplDecl@UExplicitInst_Exported@@@@YAXXZ"() 301// GNU-DAG: define weak_odr dllexport void @_Z18inlineFuncTmplDeclI21ExplicitInst_ExportedEvv() 302template<typename T> __declspec(dllexport) inline void inlineFuncTmplDecl(); 303template<typename T> void inlineFuncTmplDecl() {} 304INST(inlineFuncTmplDecl<ExplicitInst_Exported>) 305 306// MSC-DAG: define weak_odr dllexport void @"\01??$inlineFuncTmplDef@UExplicitInst_Exported@@@@YAXXZ"() 307// GNU-DAG: define weak_odr dllexport void @_Z17inlineFuncTmplDefI21ExplicitInst_ExportedEvv() 308template<typename T> __declspec(dllexport) void inlineFuncTmplDef(); 309template<typename T> inline void inlineFuncTmplDef() {} 310INST(inlineFuncTmplDef<ExplicitInst_Exported>) 311 312 313// Redeclarations 314// MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplRedecl1@UExplicitInst_Exported@@@@YAXXZ"() 315// GNU-DAG: define weak_odr dllexport void @_Z15funcTmplRedecl1I21ExplicitInst_ExportedEvv() 316template<typename T> __declspec(dllexport) void funcTmplRedecl1(); 317template<typename T> __declspec(dllexport) void funcTmplRedecl1() {} 318INST(funcTmplRedecl1<ExplicitInst_Exported>) 319 320// MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplRedecl2@UExplicitInst_Exported@@@@YAXXZ"() 321// GNU-DAG: define weak_odr dllexport void @_Z15funcTmplRedecl2I21ExplicitInst_ExportedEvv() 322template<typename T> __declspec(dllexport) void funcTmplRedecl2(); 323template<typename T> void funcTmplRedecl2() {} 324INST(funcTmplRedecl2<ExplicitInst_Exported>) 325 326// MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplRedecl3@UExplicitInst_Exported@@@@YAXXZ"() 327// GNU-DAG: define weak_odr dllexport void @_Z15funcTmplRedecl3I21ExplicitInst_ExportedEvv() 328template<typename T> __declspec(dllexport) void funcTmplRedecl3(); 329template<typename T> void funcTmplRedecl3() {} 330INST(funcTmplRedecl3<ExplicitInst_Exported>) 331 332 333// Function template friends 334// MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplFriend1@UExplicitInst_Exported@@@@YAXXZ"() 335// GNU-DAG: define weak_odr dllexport void @_Z15funcTmplFriend1I21ExplicitInst_ExportedEvv() 336// MSC-DAG: define weak_odr dllexport void @"\01??$funcTmplFriend2@UExplicitInst_Exported@@@@YAXXZ"() 337// GNU-DAG: define weak_odr dllexport void @_Z15funcTmplFriend2I21ExplicitInst_ExportedEvv() 338struct FuncTmplFriend { 339 template<typename T> friend __declspec(dllexport) void funcTmplFriend1(); 340 template<typename T> friend __declspec(dllexport) void funcTmplFriend2(); 341}; 342template<typename T> __declspec(dllexport) void funcTmplFriend1() {} 343template<typename T> void funcTmplFriend2() {} 344INST(funcTmplFriend1<ExplicitInst_Exported>) 345INST(funcTmplFriend2<ExplicitInst_Exported>) 346 347// MSC-DAG: define weak_odr dllexport void @"\01??$externalFuncTmpl@UExplicitInst_Exported@@@ns@@YAXXZ"() 348// GNU-DAG: define weak_odr dllexport void @_ZN2ns16externalFuncTmplI21ExplicitInst_ExportedEEvv() 349namespace ns { template<typename T> __declspec(dllexport) void externalFuncTmpl() {} } 350INST(ns::externalFuncTmpl<ExplicitInst_Exported>) 351 352 353template<typename T> void funcTmpl() {} 354template<typename T> __declspec(dllexport) void exportedFuncTmpl() {} 355 356// Export implicit instantiation of an exported function template. 357// MSC-DAG: define weak_odr dllexport void @"\01??$exportedFuncTmpl@UImplicitInst_Exported@@@@YAXXZ"() 358// GNU-DAG: define weak_odr dllexport void @_Z16exportedFuncTmplI21ImplicitInst_ExportedEvv() 359USE(exportedFuncTmpl<ImplicitInst_Exported>) 360 361// Export explicit instantiation declaration of an exported function template. 362// MSC-DAG: define weak_odr dllexport void @"\01??$exportedFuncTmpl@UExplicitDecl_Exported@@@@YAXXZ"() 363// GNU-DAG: define weak_odr dllexport void @_Z16exportedFuncTmplI21ExplicitDecl_ExportedEvv() 364extern template void exportedFuncTmpl<ExplicitDecl_Exported>(); 365 template void exportedFuncTmpl<ExplicitDecl_Exported>(); 366 367// Export explicit instantiation definition of an exported function template. 368// MSC-DAG: define weak_odr dllexport void @"\01??$exportedFuncTmpl@UExplicitInst_Exported@@@@YAXXZ"() 369// GNU-DAG: define weak_odr dllexport void @_Z16exportedFuncTmplI21ExplicitInst_ExportedEvv() 370template void exportedFuncTmpl<ExplicitInst_Exported>(); 371 372// Export specialization of an exported function template. 373// MSC-DAG: define dllexport void @"\01??$exportedFuncTmpl@UExplicitSpec_Def_Exported@@@@YAXXZ"() 374// GNU-DAG: define dllexport void @_Z16exportedFuncTmplI25ExplicitSpec_Def_ExportedEvv() 375template<> __declspec(dllexport) void exportedFuncTmpl<ExplicitSpec_Def_Exported>() {} 376 377// MSC-DAG: define weak_odr dllexport void @"\01??$exportedFuncTmpl@UExplicitSpec_InlineDef_Exported@@@@YAXXZ"() 378// GNU-DAG: define weak_odr dllexport void @_Z16exportedFuncTmplI31ExplicitSpec_InlineDef_ExportedEvv() 379template<> __declspec(dllexport) inline void exportedFuncTmpl<ExplicitSpec_InlineDef_Exported>() {} 380 381// Not exporting specialization of an exported function template without 382// explicit dllexport. 383// MSC-DAG: define void @"\01??$exportedFuncTmpl@UExplicitSpec_NotExported@@@@YAXXZ"() 384// GNU-DAG: define void @_Z16exportedFuncTmplI24ExplicitSpec_NotExportedEvv() 385template<> void exportedFuncTmpl<ExplicitSpec_NotExported>() {} 386 387 388// Export explicit instantiation declaration of a non-exported function template. 389// MSC-DAG: define weak_odr dllexport void @"\01??$funcTmpl@UExplicitDecl_Exported@@@@YAXXZ"() 390// GNU-DAG: define weak_odr dllexport void @_Z8funcTmplI21ExplicitDecl_ExportedEvv() 391extern template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>(); 392 template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>(); 393 394// Export explicit instantiation definition of a non-exported function template. 395// MSC-DAG: define weak_odr dllexport void @"\01??$funcTmpl@UExplicitInst_Exported@@@@YAXXZ"() 396// GNU-DAG: define weak_odr dllexport void @_Z8funcTmplI21ExplicitInst_ExportedEvv() 397template __declspec(dllexport) void funcTmpl<ExplicitInst_Exported>(); 398 399// Export specialization of a non-exported function template. 400// MSC-DAG: define dllexport void @"\01??$funcTmpl@UExplicitSpec_Def_Exported@@@@YAXXZ"() 401// GNU-DAG: define dllexport void @_Z8funcTmplI25ExplicitSpec_Def_ExportedEvv() 402template<> __declspec(dllexport) void funcTmpl<ExplicitSpec_Def_Exported>() {} 403 404// MSC-DAG: define weak_odr dllexport void @"\01??$funcTmpl@UExplicitSpec_InlineDef_Exported@@@@YAXXZ"() 405// GNU-DAG: define weak_odr dllexport void @_Z8funcTmplI31ExplicitSpec_InlineDef_ExportedEvv() 406template<> __declspec(dllexport) inline void funcTmpl<ExplicitSpec_InlineDef_Exported>() {} 407 408 409 410//===----------------------------------------------------------------------===// 411// Precedence 412//===----------------------------------------------------------------------===// 413 414// dllexport takes precedence over the dllimport if both are specified. 415// MSC-DAG: @"\01?PrecedenceGlobal1A@@3HA" = dllexport global i32 0, align 4 416// MSC-DAG: @"\01?PrecedenceGlobal1B@@3HA" = dllexport global i32 0, align 4 417// GNU-DAG: @PrecedenceGlobal1A = dllexport global i32 0, align 4 418// GNU-DAG: @PrecedenceGlobal1B = dllexport global i32 0, align 4 419__attribute__((dllimport, dllexport)) int PrecedenceGlobal1A; // dllimport ignored 420__declspec(dllimport) __declspec(dllexport) int PrecedenceGlobal1B; // dllimport ignored 421 422// MSC-DAG: @"\01?PrecedenceGlobal2A@@3HA" = dllexport global i32 0, align 4 423// MSC-DAG: @"\01?PrecedenceGlobal2B@@3HA" = dllexport global i32 0, align 4 424// GNU-DAG: @PrecedenceGlobal2A = dllexport global i32 0, align 4 425// GNU-DAG: @PrecedenceGlobal2B = dllexport global i32 0, align 4 426__attribute__((dllexport, dllimport)) int PrecedenceGlobal2A; // dllimport ignored 427__declspec(dllexport) __declspec(dllimport) int PrecedenceGlobal2B; // dllimport ignored 428 429// MSC-DAG: @"\01?PrecedenceGlobalRedecl1@@3HA" = dllexport global i32 0, align 4 430// GNU-DAG: @PrecedenceGlobalRedecl1 = dllexport global i32 0, align 4 431__declspec(dllexport) extern int PrecedenceGlobalRedecl1; 432__declspec(dllimport) int PrecedenceGlobalRedecl1 = 0; 433 434// MSC-DAG: @"\01?PrecedenceGlobalRedecl2@@3HA" = dllexport global i32 0, align 4 435// GNU-DAG: @PrecedenceGlobalRedecl2 = dllexport global i32 0, align 4 436__declspec(dllimport) extern int PrecedenceGlobalRedecl2; 437__declspec(dllexport) int PrecedenceGlobalRedecl2; 438 439// MSC-DAG: @"\01?PrecedenceGlobalMixed1@@3HA" = dllexport global i32 0, align 4 440// GNU-DAG: @PrecedenceGlobalMixed1 = dllexport global i32 0, align 4 441__attribute__((dllexport)) extern int PrecedenceGlobalMixed1; 442__declspec(dllimport) int PrecedenceGlobalMixed1 = 0; 443 444// MSC-DAG: @"\01?PrecedenceGlobalMixed2@@3HA" = dllexport global i32 0, align 4 445// GNU-DAG: @PrecedenceGlobalMixed2 = dllexport global i32 0, align 4 446__attribute__((dllimport)) extern int PrecedenceGlobalMixed2; 447__declspec(dllexport) int PrecedenceGlobalMixed2; 448 449// MSC-DAG: define dllexport void @"\01?precedence1A@@YAXXZ" 450// MSC-DAG: define dllexport void @"\01?precedence1B@@YAXXZ" 451// GNU-DAG: define dllexport void @_Z12precedence1Av() 452// GNU-DAG: define dllexport void @_Z12precedence1Bv() 453void __attribute__((dllimport, dllexport)) precedence1A() {} 454void __declspec(dllimport) __declspec(dllexport) precedence1B() {} 455 456// MSC-DAG: define dllexport void @"\01?precedence2A@@YAXXZ" 457// MSC-DAG: define dllexport void @"\01?precedence2B@@YAXXZ" 458// GNU-DAG: define dllexport void @_Z12precedence2Av() 459// GNU-DAG: define dllexport void @_Z12precedence2Bv() 460void __attribute__((dllexport, dllimport)) precedence2A() {} 461void __declspec(dllexport) __declspec(dllimport) precedence2B() {} 462 463// MSC-DAG: define dllexport void @"\01?precedenceRedecl1@@YAXXZ" 464// GNU-DAG: define dllexport void @_Z17precedenceRedecl1v() 465void __declspec(dllimport) precedenceRedecl1(); 466void __declspec(dllexport) precedenceRedecl1() {} 467 468// MSC-DAG: define dllexport void @"\01?precedenceRedecl2@@YAXXZ" 469// GNU-DAG: define dllexport void @_Z17precedenceRedecl2v() 470void __declspec(dllexport) precedenceRedecl2(); 471void __declspec(dllimport) precedenceRedecl2() {} 472 473 474 475//===----------------------------------------------------------------------===// 476// Classes 477//===----------------------------------------------------------------------===// 478 479struct S { 480 void __declspec(dllexport) a() {} 481 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?a@S@@QAEXXZ" 482 483 struct T { 484 void __declspec(dllexport) a() {} 485 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?a@T@S@@QAEXXZ" 486 }; 487}; 488 489 490struct __declspec(dllexport) T { 491 // Copy assignment operator: 492 // M32-DAG: define weak_odr dllexport x86_thiscallcc nonnull %struct.T* @"\01??4T@@QAEAAU0@ABU0@@Z" 493 494 // Explicitly defaulted copy constructur: 495 T(const T&) = default; 496 // M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.T* @"\01??0T@@QAE@ABU0@@Z" 497 498 void a() {} 499 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?a@T@@QAEXXZ" 500 501 static int b; 502 // M32-DAG: @"\01?b@T@@2HA" = external dllexport global i32 503 504 static int c; 505 // M32-DAG: @"\01?c@T@@2HA" = dllexport global i32 0, align 4 506}; 507 508USEVAR(T::b) 509int T::c; 510 511template <typename T> struct __declspec(dllexport) U { void foo() {} }; 512// The U<int> specialization below must cause the following to be emitted: 513// M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?foo@?$U@H@@QAEXXZ" 514// M32-DAG: define weak_odr dllexport x86_thiscallcc nonnull %struct.U* @"\01??4?$U@H@@QAEAAU0@ABU0@@Z" 515struct __declspec(dllexport) V : public U<int> { }; 516 517 518struct __declspec(dllexport) W { virtual void foo() {} }; 519// Default ctor: 520// M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.W* @"\01??0W@@QAE@XZ" 521// Copy ctor: 522// M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.W* @"\01??0W@@QAE@ABU0@@Z" 523// vftable: 524// M32-DAG: [[W_VTABLE:@.*]] = private unnamed_addr constant [2 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4W@@6B@" to i8*), i8* bitcast (void (%struct.W*)* @"\01?foo@W@@UAEXXZ" to i8*)], comdat $"\01??_7W@@6B@" 525// M32-DAG: @"\01??_7W@@6B@" = dllexport unnamed_addr alias getelementptr inbounds ([2 x i8*]* [[W_VTABLE]], i32 0, i32 1) 526// G32-DAG: @_ZTV1W = weak_odr dllexport unnamed_addr constant [3 x i8*] [i8* null, i8* bitcast ({ i8*, i8* }* @_ZTI1W to i8*), i8* bitcast (void (%struct.W*)* @_ZN1W3fooEv to i8*)] 527 528struct __declspec(dllexport) X : public virtual W {}; 529// vbtable: 530// M32-DAG: @"\01??_8X@@7B@" = weak_odr dllexport unnamed_addr constant [2 x i32] [i32 0, i32 4] 531 532struct __declspec(dllexport) Y { 533 // Move assignment operator: 534 // M32-DAG: define weak_odr dllexport x86_thiscallcc nonnull %struct.Y* @"\01??4Y@@QAEAAU0@$$QAU0@@Z" 535 536 int x; 537}; 538 539struct __declspec(dllexport) Z { virtual ~Z() {} }; 540// The scalar deleting dtor does not get exported: 541// M32-DAG: define linkonce_odr x86_thiscallcc void @"\01??_GZ@@UAEPAXI@Z" 542 543 544// The user-defined dtor does get exported: 545// M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01??1Z@@UAE@XZ" 546 547namespace DontUseDtorAlias { 548 struct __declspec(dllexport) A { ~A(); }; 549 struct __declspec(dllexport) B : A { ~B(); }; 550 A::~A() { } 551 B::~B() { } 552 // Emit a real definition of B's constructor; don't alias it to A's. 553 // M32-DAG: define dllexport x86_thiscallcc void @"\01??1B@DontUseDtorAlias@@QAE@XZ" 554} 555 556struct __declspec(dllexport) DefaultedCtorsDtors { 557 DefaultedCtorsDtors() = default; 558 // M32-DAG: define weak_odr dllexport x86_thiscallcc %struct.DefaultedCtorsDtors* @"\01??0DefaultedCtorsDtors@@QAE@XZ" 559 ~DefaultedCtorsDtors() = default; 560 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01??1DefaultedCtorsDtors@@QAE@XZ" 561}; 562 563namespace ReferencedInlineMethodInNestedClass { 564 struct __declspec(dllexport) S { 565 void foo() { 566 t->bar(); 567 } 568 struct T { 569 void bar() {} 570 }; 571 T *t; 572 }; 573 // M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?foo@S@ReferencedInlineMethodInNestedClass@@QAEXXZ" 574 // M32-DAG: define linkonce_odr x86_thiscallcc void @"\01?bar@T@S@ReferencedInlineMethodInNestedClass@@QAEXXZ" 575} 576 577// MS ignores DLL attributes on partial specializations. 578template <typename T> struct PartiallySpecializedClassTemplate {}; 579template <typename T> struct __declspec(dllexport) PartiallySpecializedClassTemplate<T*> { void f() {} }; 580USEMEMFUNC(PartiallySpecializedClassTemplate<void*>, f); 581// M32-DAG: define linkonce_odr x86_thiscallcc void @"\01?f@?$PartiallySpecializedClassTemplate@PAX@@QAEXXZ" 582// G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN33PartiallySpecializedClassTemplateIPvE1fEv 583 584template <typename T> struct ExplicitlySpecializedClassTemplate {}; 585template <> struct __declspec(dllexport) ExplicitlySpecializedClassTemplate<void*> { void f() {} }; 586USEMEMFUNC(ExplicitlySpecializedClassTemplate<void*>, f); 587// M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?f@?$ExplicitlySpecializedClassTemplate@PAX@@QAEXXZ" 588// G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN34ExplicitlySpecializedClassTemplateIPvE1fEv 589 590//===----------------------------------------------------------------------===// 591// Classes with template base classes 592//===----------------------------------------------------------------------===// 593 594template <typename T> struct ClassTemplate { void func() {} }; 595template <typename T> struct __declspec(dllexport) ExportedClassTemplate { void func() {} }; 596template <typename T> struct __declspec(dllimport) ImportedClassTemplate { void func() {} }; 597 598template <typename T> struct ExplicitlySpecializedTemplate { void func() {} }; 599template <> struct ExplicitlySpecializedTemplate<int> { void func() {} }; 600template <typename T> struct ExplicitlyExportSpecializedTemplate { void func() {} }; 601template <> struct __declspec(dllexport) ExplicitlyExportSpecializedTemplate<int> { void func() {} }; 602template <typename T> struct ExplicitlyImportSpecializedTemplate { void func() {} }; 603template <> struct __declspec(dllimport) ExplicitlyImportSpecializedTemplate<int> { void func() {} }; 604 605template <typename T> struct ExplicitlyInstantiatedTemplate { void func() {} }; 606template struct ExplicitlyInstantiatedTemplate<int>; 607template <typename T> struct ExplicitlyExportInstantiatedTemplate { void func() {} }; 608template struct __declspec(dllexport) ExplicitlyExportInstantiatedTemplate<int>; 609template <typename T> struct ExplicitlyImportInstantiatedTemplate { void func() {} }; 610template struct __declspec(dllimport) ExplicitlyImportInstantiatedTemplate<int>; 611 612 613// MS: ClassTemplate<int> gets exported. 614struct __declspec(dllexport) DerivedFromTemplate : public ClassTemplate<int> {}; 615USEMEMFUNC(ClassTemplate<int>, func) 616// M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ClassTemplate@H@@QAEXXZ" 617// G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIiE4funcEv 618 619// ExportedTemplate is explicitly exported. 620struct __declspec(dllexport) DerivedFromExportedTemplate : public ExportedClassTemplate<int> {}; 621// M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExportedClassTemplate@H@@QAEXXZ" 622// G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN21ExportedClassTemplateIiE4funcEv 623 624// ImportedClassTemplate is explicitly imported. 625struct __declspec(dllexport) DerivedFromImportedTemplate : public ImportedClassTemplate<int> {}; 626USEMEMFUNC(ImportedClassTemplate<int>, func) 627// M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$ImportedClassTemplate@H@@QAEXXZ" 628// G32-DAG: declare dllimport x86_thiscallcc void @_ZN21ImportedClassTemplateIiE4funcEv 629 630// Base class already instantiated without dll attribute. 631struct DerivedFromTemplateD : public ClassTemplate<double> {}; 632struct __declspec(dllexport) DerivedFromTemplateD2 : public ClassTemplate<double> {}; 633USEMEMFUNC(ClassTemplate<double>, func) 634// M32-DAG: define linkonce_odr x86_thiscallcc void @"\01?func@?$ClassTemplate@N@@QAEXXZ" 635// G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIdE4funcEv 636 637// MS: Base class already instantiated with different dll attribute. 638struct __declspec(dllimport) DerivedFromTemplateB : public ClassTemplate<bool> {}; 639struct __declspec(dllexport) DerivedFromTemplateB2 : public ClassTemplate<bool> {}; 640USEMEMFUNC(ClassTemplate<bool>, func) 641// M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$ClassTemplate@_N@@QAEXXZ" 642// G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN13ClassTemplateIbE4funcEv 643 644// Base class already specialized without dll attribute. 645struct __declspec(dllexport) DerivedFromExplicitlySpecializedTemplate : public ExplicitlySpecializedTemplate<int> {}; 646USEMEMFUNC(ExplicitlySpecializedTemplate<int>, func) 647// M32-DAG: define linkonce_odr x86_thiscallcc void @"\01?func@?$ExplicitlySpecializedTemplate@H@@QAEXXZ" 648// G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN29ExplicitlySpecializedTemplateIiE4funcEv 649 650// Base class alredy specialized with export attribute. 651struct __declspec(dllexport) DerivedFromExplicitlyExportSpecializedTemplate : public ExplicitlyExportSpecializedTemplate<int> {}; 652USEMEMFUNC(ExplicitlyExportSpecializedTemplate<int>, func) 653// M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExplicitlyExportSpecializedTemplate@H@@QAEXXZ" 654// G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN35ExplicitlyExportSpecializedTemplateIiE4funcEv 655 656// Base class already specialized with import attribute. 657struct __declspec(dllexport) DerivedFromExplicitlyImportSpecializedTemplate : public ExplicitlyImportSpecializedTemplate<int> {}; 658USEMEMFUNC(ExplicitlyImportSpecializedTemplate<int>, func) 659// M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$ExplicitlyImportSpecializedTemplate@H@@QAEXXZ" 660// G32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @_ZN35ExplicitlyImportSpecializedTemplateIiE4funcEv 661 662// Base class already instantiated without dll attribute. 663struct __declspec(dllexport) DerivedFromExplicitlyInstantiatedTemplate : public ExplicitlyInstantiatedTemplate<int> {}; 664USEMEMFUNC(ExplicitlyInstantiatedTemplate<int>, func) 665// M32-DAG: define weak_odr x86_thiscallcc void @"\01?func@?$ExplicitlyInstantiatedTemplate@H@@QAEXXZ" 666// G32-DAG: define weak_odr x86_thiscallcc void @_ZN30ExplicitlyInstantiatedTemplateIiE4funcEv 667 668// Base class already instantiated with export attribute. 669struct __declspec(dllexport) DerivedFromExplicitlyExportInstantiatedTemplate : public ExplicitlyExportInstantiatedTemplate<int> {}; 670USEMEMFUNC(ExplicitlyExportInstantiatedTemplate<int>, func) 671// M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$ExplicitlyExportInstantiatedTemplate@H@@QAEXXZ" 672// G32-DAG: define weak_odr dllexport x86_thiscallcc void @_ZN36ExplicitlyExportInstantiatedTemplateIiE4funcEv 673 674// Base class already instantiated with import attribute. 675struct __declspec(dllexport) DerivedFromExplicitlyImportInstantiatedTemplate : public ExplicitlyImportInstantiatedTemplate<int> {}; 676USEMEMFUNC(ExplicitlyImportInstantiatedTemplate<int>, func) 677// M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"\01?func@?$ExplicitlyImportInstantiatedTemplate@H@@QAEXXZ" 678// G32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @_ZN36ExplicitlyImportInstantiatedTemplateIiE4funcEv 679 680// MS: A dll attribute propagates through multiple levels of instantiation. 681template <typename T> struct TopClass { void func() {} }; 682template <typename T> struct MiddleClass : public TopClass<T> { }; 683struct __declspec(dllexport) BottomClas : public MiddleClass<int> { }; 684USEMEMFUNC(TopClass<int>, func) 685// M32-DAG: define weak_odr dllexport x86_thiscallcc void @"\01?func@?$TopClass@H@@QAEXXZ" 686// G32-DAG: define linkonce_odr x86_thiscallcc void @_ZN8TopClassIiE4funcEv 687