1135 lines · cpp
1// RUN: %clang_cc1 -no-enable-noundef-analysis -triple i686-windows-msvc -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O1 -mconstructor-aliases -disable-llvm-passes -o - %s -w -fms-compatibility-version=19.00 | FileCheck -allow-deprecated-dag-overlap --check-prefix=MSC --check-prefix=M32 -check-prefix=MSVC2015 %s2// RUN: %clang_cc1 -no-enable-noundef-analysis -triple i686-windows-msvc -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O1 -mconstructor-aliases -disable-llvm-passes -o - %s -w -fms-compatibility-version=18.00 | FileCheck -allow-deprecated-dag-overlap --check-prefix=MSC --check-prefix=M32 -check-prefix=MSVC2013 -check-prefix=M32MSVC2013 %s3 4// RUN: %clang_cc1 -no-enable-noundef-analysis -triple x86_64-windows-msvc -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O0 -o - %s -w -fms-compatibility-version=19.00 | FileCheck -allow-deprecated-dag-overlap --check-prefix=MSC --check-prefix=M64 -check-prefix=MSVC2015 %s5// RUN: %clang_cc1 -no-enable-noundef-analysis -triple x86_64-windows-msvc -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O0 -o - %s -w -fms-compatibility-version=18.00 | FileCheck -allow-deprecated-dag-overlap --check-prefix=MSC --check-prefix=M64 -check-prefix=MSVC2013 %s6 7// RUN: %clang_cc1 -no-enable-noundef-analysis -triple i686-windows-gnu -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O0 -o - %s -w | FileCheck -allow-deprecated-dag-overlap --check-prefix=GNU --check-prefix=G32 %s8// RUN: %clang_cc1 -no-enable-noundef-analysis -triple x86_64-windows-gnu -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O0 -o - %s -w | FileCheck -allow-deprecated-dag-overlap --check-prefix=GNU %s9// RUN: %clang_cc1 -no-enable-noundef-analysis -triple i686-pc-cygwin -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O0 -o - %s -w | FileCheck -allow-deprecated-dag-overlap --check-prefix=GNU --check-prefix=C32 %s10// RUN: %clang_cc1 -no-enable-noundef-analysis -triple x86_64-pc-cygwin -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O0 -o - %s -w | FileCheck -allow-deprecated-dag-overlap --check-prefix=GNU %s11// RUN: %clang_cc1 -no-enable-noundef-analysis -triple x86_64-scei-ps4 -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O0 -o - %s -w | FileCheck -allow-deprecated-dag-overlap --check-prefix=PS %s12// RUN: %clang_cc1 -no-enable-noundef-analysis -triple x86_64-sie-ps5 -emit-llvm -std=c++1y -fno-threadsafe-statics -fms-extensions -O0 -o - %s -w | FileCheck -allow-deprecated-dag-overlap --check-prefix=PS %s13 14// Helper structs to make templates more expressive.15struct ImplicitInst_Exported {};16struct ExplicitDecl_Exported {};17struct ExplicitInst_Exported {};18struct ExplicitSpec_Exported {};19struct ExplicitSpec_Def_Exported {};20struct ExplicitSpec_InlineDef_Exported {};21struct ExplicitSpec_NotExported {};22struct External { int v; };23 24#define JOIN2(x, y) x##y25#define JOIN(x, y) JOIN2(x, y)26#define UNIQ(name) JOIN(name, __LINE__)27#define USEVAR(var) int UNIQ(use)() { return var; }28#define USE(func) void UNIQ(use)() { func(); }29#define USEMEMFUNC(class, func) void (class::*UNIQ(use)())() { return &class::func; }30#define INSTVAR(var) template int var;31#define INST(func) template void func();32 33// The vftable for struct W is comdat largest because we have RTTI.34// M32-DAG: $"??_7W@@6B@" = comdat largest35 36// M32-DAG: $"?smember@?$Base@H@PR32992@@0HA" = comdat any37 38 39//===----------------------------------------------------------------------===//40// Globals41//===----------------------------------------------------------------------===//42 43// Declarations are not exported.44// MSC-NOT: @"?ExternGlobalDecl@@3HA"45// GNU-NOT: @ExternGlobalDecl46__declspec(dllexport) extern int ExternGlobalDecl;47 48// M64-DAG: @__ImageBase = external dso_local constant i849 50// GNU-DAG: @_ZTVN10__cxxabiv117__class_type_infoE = external global51 52// dllexport implies a definition.53// MSC-DAG: @"?GlobalDef@@3HA" = dso_local dllexport global i32 0, align 454// GNU-DAG: @GlobalDef = dso_local dllexport global i32 0, align 455__declspec(dllexport) int GlobalDef;56 57// Export definition.58// MSC-DAG: @"?GlobalInit1@@3HA" = dso_local dllexport global i32 1, align 459// GNU-DAG: @GlobalInit1 = dso_local dllexport global i32 1, align 460__declspec(dllexport) int GlobalInit1 = 1;61 62// MSC-DAG: @"?GlobalInit2@@3HA" = dso_local dllexport global i32 1, align 463// GNU-DAG: @GlobalInit2 = dso_local dllexport global i32 1, align 464int __declspec(dllexport) GlobalInit2 = 1;65 66// Declare, then export definition.67// MSC-DAG: @"?GlobalDeclInit@@3HA" = dso_local dllexport global i32 1, align 468// GNU-DAG: @GlobalDeclInit = dso_local dllexport global i32 1, align 469__declspec(dllexport) extern int GlobalDeclInit;70int GlobalDeclInit = 1;71 72// Redeclarations73// MSC-DAG: @"?GlobalRedecl1@@3HA" = dso_local dllexport global i32 0, align 474// GNU-DAG: @GlobalRedecl1 = dso_local dllexport global i32 0, align 475__declspec(dllexport) extern int GlobalRedecl1;76__declspec(dllexport) int GlobalRedecl1;77 78// MSC-DAG: @"?GlobalRedecl2@@3HA" = dso_local dllexport global i32 0, align 479// GNU-DAG: @GlobalRedecl2 = dso_local dllexport global i32 0, align 480__declspec(dllexport) extern int GlobalRedecl2;81 int GlobalRedecl2;82 83// MSC-DAG: @"?ExternalGlobal@ns@@3HA" = dso_local dllexport global i32 0, align 484// GNU-DAG: @_ZN2ns14ExternalGlobalE = dso_local dllexport global i32 0, align 485namespace ns { __declspec(dllexport) int ExternalGlobal; }86 87// MSC-DAG: @"?ExternalAutoTypeGlobal@@3UExternal@@A" = dso_local dllexport global %struct.External zeroinitializer, align 488// GNU-DAG: @ExternalAutoTypeGlobal = dso_local dllexport global %struct.External zeroinitializer, align 489__declspec(dllexport) auto ExternalAutoTypeGlobal = External();90 91int f();92// MSC-DAG: @"?x@?1??nonInlineStaticLocalsFunc@@YAHXZ@4HA" = internal {{(unnamed_addr )*}}global i32 093// MSC-DAG: @"?$S1@?1??nonInlineStaticLocalsFunc@@YAHXZ@4IA" = internal {{(unnamed_addr )*}}global i32 094int __declspec(dllexport) nonInlineStaticLocalsFunc() {95 static int x = f();96 return x++;97};98 99// MSC-DAG: @"?x@?1??inlineStaticLocalsFunc@@YAHXZ@4HA" = weak_odr dso_local dllexport global i32 0, comdat100// MSC-DAG: @"??_B?1??inlineStaticLocalsFunc@@YAHXZ@51" = weak_odr dllexport global i32 0, comdat101// Note: MinGW doesn't seem to export the static local here.102inline int __declspec(dllexport) inlineStaticLocalsFunc() {103 static int x = f();104 return x++;105}106 107namespace PR32992 {108// Static data members of a instantiated base class should be exported.109template <class T>110class Base {111 virtual void myfunc() {}112 static int smember;113};114// MSC-DAG: @"?smember@?$Base@H@PR32992@@0HA" = weak_odr dso_local dllexport global i32 77, comdat, align 4115template <class T> int Base<T>::smember = 77;116template <class T>117class __declspec(dllexport) Derived2 : Base<T> {118 void myfunc() {}119};120class Derived : public Derived2<int> {121 void myfunc() {}122};123} // namespace PR32992124 125namespace PR32992_1 {126namespace a { enum b { c }; }127template <typename> class d {128 static constexpr a::b e = a::c;129};130namespace f {131 template <typename g = int> class h : d<g> {};132}133using f::h;134class __declspec(dllexport) i : h<> {};135}136 137//===----------------------------------------------------------------------===//138// Variable templates139//===----------------------------------------------------------------------===//140 141// Declarations are not exported.142 143// MSC-DAG: @"??$VarTmplImplicitDef@UImplicitInst_Exported@@@@3HA" = external dso_local global144// GNU-DAG: @_Z18VarTmplImplicitDefI21ImplicitInst_ExportedE = external global145template<typename T> __declspec(dllexport) extern int VarTmplImplicitDef;146USEVAR(VarTmplImplicitDef<ImplicitInst_Exported>)147 148// Export definition.149// MSC-DAG: @"??$VarTmplInit1@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4150// GNU-DAG: @_Z12VarTmplInit1I21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4151template<typename T> __declspec(dllexport) int VarTmplInit1 = 1;152INSTVAR(VarTmplInit1<ExplicitInst_Exported>)153 154// MSC-DAG: @"??$VarTmplInit2@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4155// GNU-DAG: @_Z12VarTmplInit2I21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4156template<typename T> int __declspec(dllexport) VarTmplInit2 = 1;157INSTVAR(VarTmplInit2<ExplicitInst_Exported>)158 159// Declare, then export definition.160// MSC-DAG: @"??$VarTmplDeclInit@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4161// GNU-DAG: @_Z15VarTmplDeclInitI21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4162template<typename T> __declspec(dllexport) extern int VarTmplDeclInit;163template<typename T> int VarTmplDeclInit = 1;164INSTVAR(VarTmplDeclInit<ExplicitInst_Exported>)165 166// Redeclarations167// MSC-DAG: @"??$VarTmplRedecl1@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4168// GNU-DAG: @_Z14VarTmplRedecl1I21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4169template<typename T> __declspec(dllexport) extern int VarTmplRedecl1;170template<typename T> __declspec(dllexport) int VarTmplRedecl1 = 1;171INSTVAR(VarTmplRedecl1<ExplicitInst_Exported>)172 173// MSC-DAG: @"??$VarTmplRedecl2@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4174// GNU-DAG: @_Z14VarTmplRedecl2I21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4175template<typename T> __declspec(dllexport) extern int VarTmplRedecl2;176template<typename T> int VarTmplRedecl2 = 1;177INSTVAR(VarTmplRedecl2<ExplicitInst_Exported>)178 179// MSC-DAG: @"??$ExternalVarTmpl@UExplicitInst_Exported@@@ns@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4180// GNU-DAG: @_ZN2ns15ExternalVarTmplI21ExplicitInst_ExportedEE = weak_odr dso_local dllexport global i32 1, comdat, align 4181namespace ns { template<typename T> __declspec(dllexport) int ExternalVarTmpl = 1; }182INSTVAR(ns::ExternalVarTmpl<ExplicitInst_Exported>)183 184// MSC-DAG: @"??$ExternalAutoTypeVarTmpl@UExplicitInst_Exported@@@@3UExternal@@A" = weak_odr dso_local dllexport global %struct.External zeroinitializer, comdat, align 4185// GNU-DAG: @_Z23ExternalAutoTypeVarTmplI21ExplicitInst_ExportedE = weak_odr dso_local dllexport global %struct.External zeroinitializer, comdat, align 4186template<typename T> __declspec(dllexport) auto ExternalAutoTypeVarTmpl = External();187template External ExternalAutoTypeVarTmpl<ExplicitInst_Exported>;188 189 190template<typename T> int VarTmpl = 1;191template<typename T> __declspec(dllexport) int ExportedVarTmpl = 1;192 193// Export implicit instantiation of an exported variable template.194// MSC-DAG: @"??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4195// GNU-DAG: @_Z15ExportedVarTmplI21ImplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4196USEVAR(ExportedVarTmpl<ImplicitInst_Exported>)197 198// Export explicit instantiation declaration of an exported variable template.199// MSC-DAG: @"??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4200// GNU-DAG: @_Z15ExportedVarTmplI21ExplicitDecl_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4201extern template int ExportedVarTmpl<ExplicitDecl_Exported>;202 template int ExportedVarTmpl<ExplicitDecl_Exported>;203 204// Export explicit instantiation definition of an exported variable template.205// MSC-DAG: @"??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4206// GNU-DAG: @_Z15ExportedVarTmplI21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4207template __declspec(dllexport) int ExportedVarTmpl<ExplicitInst_Exported>;208 209// Export specialization of an exported variable template.210// MSC-DAG: @"??$ExportedVarTmpl@UExplicitSpec_Exported@@@@3HA" = dso_local dllexport global i32 0, align 4211// GNU-DAG: @_Z15ExportedVarTmplI21ExplicitSpec_ExportedE = dso_local dllexport global i32 0, align 4212template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Exported>;213 214// MSC-DAG: @"??$ExportedVarTmpl@UExplicitSpec_Def_Exported@@@@3HA" = dso_local dllexport global i32 1, align 4215// GNU-DAG: @_Z15ExportedVarTmplI25ExplicitSpec_Def_ExportedE = dso_local dllexport global i32 1, align 4216template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Def_Exported> = 1;217 218// Not exporting specialization of an exported variable template without219// explicit dllexport.220// MSC-DAG: @"??$ExportedVarTmpl@UExplicitSpec_NotExported@@@@3HA" = dso_local global i32 0, align 4221// GNU-DAG: @_Z15ExportedVarTmplI24ExplicitSpec_NotExportedE = dso_local global i32 0, align 4222template<> int ExportedVarTmpl<ExplicitSpec_NotExported>;223 224 225// Export explicit instantiation declaration of a non-exported variable template.226// MSC-DAG: @"??$VarTmpl@UExplicitDecl_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4227// GNU-DAG: @_Z7VarTmplI21ExplicitDecl_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4228extern template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>;229 template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>;230 231// Export explicit instantiation definition of a non-exported variable template.232// MSC-DAG: @"??$VarTmpl@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4233// GNU-DAG: @_Z7VarTmplI21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4234template __declspec(dllexport) int VarTmpl<ExplicitInst_Exported>;235 236// Export specialization of a non-exported variable template.237// MSC-DAG: @"??$VarTmpl@UExplicitSpec_Exported@@@@3HA" = dso_local dllexport global i32 0, align 4238// GNU-DAG: @_Z7VarTmplI21ExplicitSpec_ExportedE = dso_local dllexport global i32 0, align 4239template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Exported>;240 241// MSC-DAG: @"??$VarTmpl@UExplicitSpec_Def_Exported@@@@3HA" = dso_local dllexport global i32 1, align 4242// GNU-DAG: @_Z7VarTmplI25ExplicitSpec_Def_ExportedE = dso_local dllexport global i32 1, align 4243template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Def_Exported> = 1;244 245 246 247//===----------------------------------------------------------------------===//248// Functions249//===----------------------------------------------------------------------===//250 251// Declarations are not exported.252 253// Export function definition.254// MSC-DAG: define dso_local dllexport void @"?def@@YAXXZ"()255// GNU-DAG: define dso_local dllexport void @_Z3defv()256__declspec(dllexport) void def() {}257 258// extern "C"259// MSC-DAG: define dso_local dllexport void @externC()260// GNU-DAG: define dso_local dllexport void @externC()261extern "C" __declspec(dllexport) void externC() {}262 263// Export inline function.264// MSC-DAG: define weak_odr dso_local dllexport void @"?inlineFunc@@YAXXZ"()265// GNU-DAG: define weak_odr dso_local dllexport void @_Z10inlineFuncv()266__declspec(dllexport) inline void inlineFunc() {}267 268// MSC-DAG: define weak_odr dso_local dllexport void @"?inlineDecl@@YAXXZ"()269// GNU-DAG: define weak_odr dso_local dllexport void @_Z10inlineDeclv()270__declspec(dllexport) inline void inlineDecl();271 void inlineDecl() {}272 273// MSC-DAG: define weak_odr dso_local dllexport void @"?inlineDef@@YAXXZ"()274// GNU-DAG: define weak_odr dso_local dllexport void @_Z9inlineDefv()275__declspec(dllexport) void inlineDef();276 inline void inlineDef() {}277 278// Redeclarations279// MSC-DAG: define dso_local dllexport void @"?redecl1@@YAXXZ"()280// GNU-DAG: define dso_local dllexport void @_Z7redecl1v()281__declspec(dllexport) void redecl1();282__declspec(dllexport) void redecl1() {}283 284// MSC-DAG: define dso_local dllexport void @"?redecl2@@YAXXZ"()285// GNU-DAG: define dso_local dllexport void @_Z7redecl2v()286__declspec(dllexport) void redecl2();287 void redecl2() {}288 289// Friend functions290// MSC-DAG: define dso_local dllexport void @"?friend1@@YAXXZ"()291// GNU-DAG: define dso_local dllexport void @_Z7friend1v()292// MSC-DAG: define dso_local dllexport void @"?friend2@@YAXXZ"()293// GNU-DAG: define dso_local dllexport void @_Z7friend2v()294struct FuncFriend {295 friend __declspec(dllexport) void friend1();296 friend __declspec(dllexport) void friend2();297};298__declspec(dllexport) void friend1() {}299 void friend2() {}300 301// MSC-DAG: define dso_local dllexport void @"?func@Befriended@@SAXXZ"()302// GNU-DAG: define dso_local dllexport void @_ZN10Befriended4funcEv()303struct __declspec(dllexport) Befriended {304 static void func();305 struct Befriending {306 friend void Befriended::func();307 };308};309void Befriended::func() {}310 311// Implicit declarations can be redeclared with dllexport.312// MSC-DAG: define dso_local dllexport nonnull ptr @"??2@{{YAPAXI|YAPEAX_K}}@Z"(313// GNU-DAG: define dso_local dllexport nonnull ptr @_Znw{{[yjm]}}(314void* alloc(__SIZE_TYPE__ n);315__declspec(dllexport) void* operator new(__SIZE_TYPE__ n) { return alloc(n); }316 317// MSC-DAG: define dso_local dllexport void @"?externalFunc@ns@@YAXXZ"()318// GNU-DAG: define dso_local dllexport void @_ZN2ns12externalFuncEv()319namespace ns { __declspec(dllexport) void externalFunc() {} }320 321 322 323//===----------------------------------------------------------------------===//324// Function templates325//===----------------------------------------------------------------------===//326 327// Export function template definition.328// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplDef@UExplicitInst_Exported@@@@YAXXZ"()329// GNU-DAG: define weak_odr dso_local dllexport void @_Z11funcTmplDefI21ExplicitInst_ExportedEvv()330template<typename T> __declspec(dllexport) void funcTmplDef() {}331INST(funcTmplDef<ExplicitInst_Exported>)332 333// Export inline function template.334// MSC-DAG: define weak_odr dso_local dllexport void @"??$inlineFuncTmpl1@UExplicitInst_Exported@@@@YAXXZ"()335// GNU-DAG: define weak_odr dso_local dllexport void @_Z15inlineFuncTmpl1I21ExplicitInst_ExportedEvv()336template<typename T> __declspec(dllexport) inline void inlineFuncTmpl1() {}337INST(inlineFuncTmpl1<ExplicitInst_Exported>)338 339// MSC-DAG: define weak_odr dso_local dllexport void @"??$inlineFuncTmpl2@UExplicitInst_Exported@@@@YAXXZ"()340// GNU-DAG: define weak_odr dso_local dllexport void @_Z15inlineFuncTmpl2I21ExplicitInst_ExportedEvv()341template<typename T> inline void __attribute__((dllexport)) inlineFuncTmpl2() {}342INST(inlineFuncTmpl2<ExplicitInst_Exported>)343 344// MSC-DAG: define weak_odr dso_local dllexport void @"??$inlineFuncTmplDecl@UExplicitInst_Exported@@@@YAXXZ"()345// GNU-DAG: define weak_odr dso_local dllexport void @_Z18inlineFuncTmplDeclI21ExplicitInst_ExportedEvv()346template<typename T> __declspec(dllexport) inline void inlineFuncTmplDecl();347template<typename T> void inlineFuncTmplDecl() {}348INST(inlineFuncTmplDecl<ExplicitInst_Exported>)349 350// MSC-DAG: define weak_odr dso_local dllexport void @"??$inlineFuncTmplDef@UExplicitInst_Exported@@@@YAXXZ"()351// GNU-DAG: define weak_odr dso_local dllexport void @_Z17inlineFuncTmplDefI21ExplicitInst_ExportedEvv()352template<typename T> __declspec(dllexport) void inlineFuncTmplDef();353template<typename T> inline void inlineFuncTmplDef() {}354INST(inlineFuncTmplDef<ExplicitInst_Exported>)355 356 357// Redeclarations358// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplRedecl1@UExplicitInst_Exported@@@@YAXXZ"()359// GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplRedecl1I21ExplicitInst_ExportedEvv()360template<typename T> __declspec(dllexport) void funcTmplRedecl1();361template<typename T> __declspec(dllexport) void funcTmplRedecl1() {}362INST(funcTmplRedecl1<ExplicitInst_Exported>)363 364// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplRedecl2@UExplicitInst_Exported@@@@YAXXZ"()365// GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplRedecl2I21ExplicitInst_ExportedEvv()366template<typename T> __declspec(dllexport) void funcTmplRedecl2();367template<typename T> void funcTmplRedecl2() {}368INST(funcTmplRedecl2<ExplicitInst_Exported>)369 370// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplRedecl3@UExplicitInst_Exported@@@@YAXXZ"()371// GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplRedecl3I21ExplicitInst_ExportedEvv()372template<typename T> __declspec(dllexport) void funcTmplRedecl3();373template<typename T> void funcTmplRedecl3() {}374INST(funcTmplRedecl3<ExplicitInst_Exported>)375 376 377// Function template friends378// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplFriend1@UExplicitInst_Exported@@@@YAXXZ"()379// GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplFriend1I21ExplicitInst_ExportedEvv()380// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplFriend2@UExplicitInst_Exported@@@@YAXXZ"()381// GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplFriend2I21ExplicitInst_ExportedEvv()382struct FuncTmplFriend {383 template<typename T> friend __declspec(dllexport) void funcTmplFriend1();384 template<typename T> friend __declspec(dllexport) void funcTmplFriend2();385};386template<typename T> __declspec(dllexport) void funcTmplFriend1() {}387template<typename T> void funcTmplFriend2() {}388INST(funcTmplFriend1<ExplicitInst_Exported>)389INST(funcTmplFriend2<ExplicitInst_Exported>)390 391// MSC-DAG: define weak_odr dso_local dllexport void @"??$externalFuncTmpl@UExplicitInst_Exported@@@ns@@YAXXZ"()392// GNU-DAG: define weak_odr dso_local dllexport void @_ZN2ns16externalFuncTmplI21ExplicitInst_ExportedEEvv()393namespace ns { template<typename T> __declspec(dllexport) void externalFuncTmpl() {} }394INST(ns::externalFuncTmpl<ExplicitInst_Exported>)395 396 397template<typename T> void funcTmpl() {}398template<typename T> __declspec(dllexport) void exportedFuncTmpl() {}399 400// Export implicit instantiation of an exported function template.401// MSC-DAG: define weak_odr dso_local dllexport void @"??$exportedFuncTmpl@UImplicitInst_Exported@@@@YAXXZ"()402// GNU-DAG: define weak_odr dso_local dllexport void @_Z16exportedFuncTmplI21ImplicitInst_ExportedEvv()403USE(exportedFuncTmpl<ImplicitInst_Exported>)404 405// Export explicit instantiation declaration of an exported function template.406// MSC-DAG: define weak_odr dso_local dllexport void @"??$exportedFuncTmpl@UExplicitDecl_Exported@@@@YAXXZ"()407// GNU-DAG: define weak_odr dso_local dllexport void @_Z16exportedFuncTmplI21ExplicitDecl_ExportedEvv()408extern template void exportedFuncTmpl<ExplicitDecl_Exported>();409 template void exportedFuncTmpl<ExplicitDecl_Exported>();410 411// Export explicit instantiation definition of an exported function template.412// MSC-DAG: define weak_odr dso_local dllexport void @"??$exportedFuncTmpl@UExplicitInst_Exported@@@@YAXXZ"()413// GNU-DAG: define weak_odr dso_local dllexport void @_Z16exportedFuncTmplI21ExplicitInst_ExportedEvv()414template void exportedFuncTmpl<ExplicitInst_Exported>();415 416// Export specialization of an exported function template.417// MSC-DAG: define dso_local dllexport void @"??$exportedFuncTmpl@UExplicitSpec_Def_Exported@@@@YAXXZ"()418// GNU-DAG: define dso_local dllexport void @_Z16exportedFuncTmplI25ExplicitSpec_Def_ExportedEvv()419template<> __declspec(dllexport) void exportedFuncTmpl<ExplicitSpec_Def_Exported>() {}420 421// MSC-DAG: define weak_odr dso_local dllexport void @"??$exportedFuncTmpl@UExplicitSpec_InlineDef_Exported@@@@YAXXZ"()422// GNU-DAG: define weak_odr dso_local dllexport void @_Z16exportedFuncTmplI31ExplicitSpec_InlineDef_ExportedEvv()423template<> __declspec(dllexport) inline void exportedFuncTmpl<ExplicitSpec_InlineDef_Exported>() {}424 425// Not exporting specialization of an exported function template without426// explicit dllexport.427// MSC-DAG: define dso_local void @"??$exportedFuncTmpl@UExplicitSpec_NotExported@@@@YAXXZ"()428// GNU-DAG: define dso_local void @_Z16exportedFuncTmplI24ExplicitSpec_NotExportedEvv()429template<> void exportedFuncTmpl<ExplicitSpec_NotExported>() {}430 431 432// Export explicit instantiation declaration of a non-exported function template.433// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmpl@UExplicitDecl_Exported@@@@YAXXZ"()434// GNU-DAG: define weak_odr dso_local dllexport void @_Z8funcTmplI21ExplicitDecl_ExportedEvv()435extern template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>();436 template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>();437 438// Export explicit instantiation definition of a non-exported function template.439// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmpl@UExplicitInst_Exported@@@@YAXXZ"()440// GNU-DAG: define weak_odr dso_local dllexport void @_Z8funcTmplI21ExplicitInst_ExportedEvv()441template __declspec(dllexport) void funcTmpl<ExplicitInst_Exported>();442 443// Export specialization of a non-exported function template.444// MSC-DAG: define dso_local dllexport void @"??$funcTmpl@UExplicitSpec_Def_Exported@@@@YAXXZ"()445// GNU-DAG: define dso_local dllexport void @_Z8funcTmplI25ExplicitSpec_Def_ExportedEvv()446template<> __declspec(dllexport) void funcTmpl<ExplicitSpec_Def_Exported>() {}447 448// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmpl@UExplicitSpec_InlineDef_Exported@@@@YAXXZ"()449// GNU-DAG: define weak_odr dso_local dllexport void @_Z8funcTmplI31ExplicitSpec_InlineDef_ExportedEvv()450template<> __declspec(dllexport) inline void funcTmpl<ExplicitSpec_InlineDef_Exported>() {}451 452 453 454//===----------------------------------------------------------------------===//455// Precedence456//===----------------------------------------------------------------------===//457 458// dllexport takes precedence over the dllimport if both are specified.459// MSC-DAG: @"?PrecedenceGlobal1A@@3HA" = dso_local dllexport global i32 0, align 4460// MSC-DAG: @"?PrecedenceGlobal1B@@3HA" = dso_local dllexport global i32 0, align 4461// GNU-DAG: @PrecedenceGlobal1A = dso_local dllexport global i32 0, align 4462// GNU-DAG: @PrecedenceGlobal1B = dso_local dllexport global i32 0, align 4463__attribute__((dllimport, dllexport)) int PrecedenceGlobal1A; // dllimport ignored464__declspec(dllimport) __declspec(dllexport) int PrecedenceGlobal1B; // dllimport ignored465 466// MSC-DAG: @"?PrecedenceGlobal2A@@3HA" = dso_local dllexport global i32 0, align 4467// MSC-DAG: @"?PrecedenceGlobal2B@@3HA" = dso_local dllexport global i32 0, align 4468// GNU-DAG: @PrecedenceGlobal2A = dso_local dllexport global i32 0, align 4469// GNU-DAG: @PrecedenceGlobal2B = dso_local dllexport global i32 0, align 4470__attribute__((dllexport, dllimport)) int PrecedenceGlobal2A; // dllimport ignored471__declspec(dllexport) __declspec(dllimport) int PrecedenceGlobal2B; // dllimport ignored472 473// MSC-DAG: @"?PrecedenceGlobalRedecl1@@3HA" = dso_local dllexport global i32 0, align 4474// GNU-DAG: @PrecedenceGlobalRedecl1 = dso_local dllexport global i32 0, align 4475__declspec(dllexport) extern int PrecedenceGlobalRedecl1;476__declspec(dllimport) int PrecedenceGlobalRedecl1 = 0;477 478// MSC-DAG: @"?PrecedenceGlobalRedecl2@@3HA" = dso_local dllexport global i32 0, align 4479// GNU-DAG: @PrecedenceGlobalRedecl2 = dso_local dllexport global i32 0, align 4480__declspec(dllimport) extern int PrecedenceGlobalRedecl2;481__declspec(dllexport) int PrecedenceGlobalRedecl2;482 483// MSC-DAG: @"?PrecedenceGlobalMixed1@@3HA" = dso_local dllexport global i32 0, align 4484// GNU-DAG: @PrecedenceGlobalMixed1 = dso_local dllexport global i32 0, align 4485__attribute__((dllexport)) extern int PrecedenceGlobalMixed1;486__declspec(dllimport) int PrecedenceGlobalMixed1 = 0;487 488// MSC-DAG: @"?PrecedenceGlobalMixed2@@3HA" = dso_local dllexport global i32 0, align 4489// GNU-DAG: @PrecedenceGlobalMixed2 = dso_local dllexport global i32 0, align 4490__attribute__((dllimport)) extern int PrecedenceGlobalMixed2;491__declspec(dllexport) int PrecedenceGlobalMixed2;492 493// MSC-DAG: define dso_local dllexport void @"?precedence1A@@YAXXZ"494// MSC-DAG: define dso_local dllexport void @"?precedence1B@@YAXXZ"495// GNU-DAG: define dso_local dllexport void @_Z12precedence1Av()496// GNU-DAG: define dso_local dllexport void @_Z12precedence1Bv()497void __attribute__((dllimport, dllexport)) precedence1A() {}498void __declspec(dllimport) __declspec(dllexport) precedence1B() {}499 500// MSC-DAG: define dso_local dllexport void @"?precedence2A@@YAXXZ"501// MSC-DAG: define dso_local dllexport void @"?precedence2B@@YAXXZ"502// GNU-DAG: define dso_local dllexport void @_Z12precedence2Av()503// GNU-DAG: define dso_local dllexport void @_Z12precedence2Bv()504void __attribute__((dllexport, dllimport)) precedence2A() {}505void __declspec(dllexport) __declspec(dllimport) precedence2B() {}506 507// MSC-DAG: define dso_local dllexport void @"?precedenceRedecl1@@YAXXZ"508// GNU-DAG: define dso_local dllexport void @_Z17precedenceRedecl1v()509void __declspec(dllimport) precedenceRedecl1();510void __declspec(dllexport) precedenceRedecl1() {}511 512// MSC-DAG: define dso_local dllexport void @"?precedenceRedecl2@@YAXXZ"513// GNU-DAG: define dso_local dllexport void @_Z17precedenceRedecl2v()514void __declspec(dllexport) precedenceRedecl2();515void __declspec(dllimport) precedenceRedecl2() {}516 517 518 519//===----------------------------------------------------------------------===//520// Classes521//===----------------------------------------------------------------------===//522 523struct S {524 void __declspec(dllexport) a() {}525 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?a@S@@QAEXXZ"526 527 struct T {528 void __declspec(dllexport) a() {}529 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?a@T@S@@QAEXXZ"530 };531};532 533template <typename T>534struct SomeTemplate {535 SomeTemplate(T o = T()) : o(o) {}536 T o;537};538// MSVC2015-DAG: define weak_odr dso_local dllexport {{.+}} @"??4?$SomeTemplate@H@@Q{{.+}}@$$Q{{.+}}@@Z"539// MSVC2013-DAG: define weak_odr dso_local dllexport {{.+}} @"??4?$SomeTemplate@H@@Q{{.+}}0@A{{.+}}0@@Z"540struct __declspec(dllexport) InheritFromTemplate : SomeTemplate<int> {};541 542// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??_F?$SomeTemplate@H@@QAEXXZ"({{.*}}) {{#[0-9]+}} comdat543 544namespace PR23801 {545template <typename>546struct S {547 ~S() {}548};549struct A {550 A(int);551 S<int> s;552};553struct __declspec(dllexport) B {554 B(A = 0) {}555};556 557}558//559// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??_FB@PR23801@@QAEXXZ"({{.*}}) {{#[0-9]+}} comdat560 561struct __declspec(dllexport) T {562 // Copy assignment operator:563 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) ptr @"??4T@@QAEAAU0@ABU0@@Z"564 565 // Explicitly defaulted copy constructur:566 T(const T&) = default;567 // M32MSVC2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0T@@QAE@ABU0@@Z"568 569 void a() {}570 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?a@T@@QAEXXZ"571 572 static int b;573 // M32-DAG: @"?b@T@@2HA" = external dso_local global i32574 575 static int c;576 // M32-DAG: @"?c@T@@2HA" = dso_local dllexport global i32 0, align 4577};578 579USEVAR(T::b)580int T::c;581 582// Export template class with static member variable583// MSC-DAG: @"?StaticClassVarExpTmplClass@?$TmplClass@H@@2HA" = weak_odr dso_local dllexport global i32 0, comdat, align 4584// GNU-DAG: @_ZN9TmplClassIiE26StaticClassVarExpTmplClassE = weak_odr dso_local dllexport global i32 0, comdat, align 4585template<typename T>586struct __declspec(dllexport) TmplClass587{588 static T StaticClassVarExpTmplClass;589};590 591template<typename T>592T TmplClass<T>::StaticClassVarExpTmplClass;593 594// Export a definition of a template function.595// MSC-DAG: define weak_odr dso_local dllexport i32 @"??$TypeFunTmpl@H@@YAHH@Z"596// GNU-DAG: define weak_odr dso_local dllexport i32 @_Z11TypeFunTmplIiET_S0_597template<typename T>598T __declspec(dllexport) TypeFunTmpl(T t) { return t + t; }599 600// Instantiate the exported template class and the exported template function.601int useExportedTmplStaticAndFun()602{603 return TmplClass<int>::StaticClassVarExpTmplClass + TypeFunTmpl<int>(10);604}605 606template <typename T> struct __declspec(dllexport) U { void foo() {} };607struct __declspec(dllexport) V : public U<int> { };608// U<int>'s assignment operator is emitted.609// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) ptr @"??4?$U@H@@QAEAAU0@ABU0@@Z"610 611struct __declspec(dllexport) W { virtual void foo(); };612void W::foo() {}613// Default ctor:614// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0W@@QAE@XZ"615// Copy ctor:616// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0W@@QAE@ABU0@@Z"617// vftable:618// M32-DAG: [[W_VTABLE:@.*]] = private unnamed_addr constant { [2 x ptr] } { [2 x ptr] [ptr @"??_R4W@@6B@", ptr @"?foo@W@@UAEXXZ"] }, comdat($"??_7W@@6B@")619// M32-DAG: @"??_7W@@6B@" = dllexport unnamed_addr alias ptr, getelementptr inbounds ({ [2 x ptr] }, ptr [[W_VTABLE]], i32 0, i32 0, i32 1)620// G32-DAG: @_ZTV1W = dso_local dllexport unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null, ptr @_ZTI1W, ptr @_ZN1W3fooEv] }621// C32-DAG: @_ZTV1W = dso_local dllexport unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null, ptr @_ZTI1W, ptr @_ZN1W3fooEv] }622 623struct __declspec(dllexport) X : public virtual W {};624// vbtable:625// M32-DAG: @"??_8X@@7B@" = weak_odr dllexport unnamed_addr constant [2 x i32] [i32 0, i32 4]626 627struct __declspec(dllexport) Y {628 // Move assignment operator:629 // MSVC2015-DAG: define weak_odr dso_local dllexport {{.+}} @"??4Y@@Q{{.+}}@$$Q{{.+}}@@Z"630 // MSVC2013-DAG: define weak_odr dso_local dllexport {{.+}} @"??4Y@@Q{{.+}}0@A{{.+}}0@@Z"631 632 int x;633};634 635struct __declspec(dllexport) Z { virtual ~Z() {} };636// The scalar deleting dtor does not get exported:637// M32-DAG: define linkonce_odr dso_local x86_thiscallcc ptr @"??_GZ@@UAEPAXI@Z"638 639 640// The user-defined dtor does get exported:641// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??1Z@@UAE@XZ"642 643namespace UseDtorAlias {644 struct __declspec(dllexport) A { ~A(); };645 struct __declspec(dllexport) B : A { ~B(); };646 A::~A() { }647 B::~B() { }648 // Emit a alias definition of B's constructor.649 // M32-DAG: @"??1B@UseDtorAlias@@QAE@XZ" = dso_local dllexport unnamed_addr alias {{.*}} @"??1A@UseDtorAlias@@QAE@XZ"650}651 652struct __declspec(dllexport) DefaultedCtorsDtors {653 DefaultedCtorsDtors() = default;654 // M32MSVC2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0DefaultedCtorsDtors@@QAE@XZ"655 ~DefaultedCtorsDtors() = default;656 // M32MSVC2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??1DefaultedCtorsDtors@@QAE@XZ"657};658 659// Export defaulted member function definitions declared inside class.660struct __declspec(dllexport) ExportDefaultedInclassDefs {661 ExportDefaultedInclassDefs() = default;662 // M32VS2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0ExportDefaultedInclassDefs@@QAE@XZ"(ptr returned %this)663 // M64VS2013-DAG: define weak_odr dso_local dllexport ptr @"??0ExportDefaultedInclassDefs@@QEAA@XZ"(ptr returned %this)664 // M32VS2015-NOT: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0ExportDefaultedInclassDefs@@QAE@XZ"(ptr returned %this)665 // M64VS2015-NOT: define weak_odr dso_local dllexport ptr @"??0ExportDefaultedInclassDefs@@QEAA@XZ"(ptr returned %this)666 667 ~ExportDefaultedInclassDefs() = default;668 // M32VS2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??1ExportDefaultedInclassDefs@@QAE@XZ"(ptr %this)669 // M64VS2013-DAG: define weak_odr dso_local dllexport void @"??1ExportDefaultedInclassDefs@@QEAA@XZ"(ptr %this)670 // M32VS2015-NOT: define weak_odr dso_local dllexport x86_thiscallcc void @"??1ExportDefaultedInclassDefs@@QAE@XZ"(ptr %this)671 // M64VS2015-NOT: define weak_odr dso_local dllexport void @"??1ExportDefaultedInclassDefs@@QEAA@XZ"(ptr %this)672 673 ExportDefaultedInclassDefs(const ExportDefaultedInclassDefs&) = default;674 // M32VS2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0ExportDefaultedInclassDefs@@QAE@ABU0@@Z"(ptr {{[^,]*}} returned {{[^,]*}} %this, ptr nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}))675 // M64VS2013-DAG: define weak_odr dso_local dllexport ptr @"??0ExportDefaultedInclassDefs@@QEAA@AEBU0@@Z"(ptr {{[^,]*}} returned {{[^,]*}} %this, ptr nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}))676 // M32VS2015-NOT: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0ExportDefaultedInclassDefs@@QAE@ABU0@@Z"(ptr {{[^,]*}} returned {{[^,]*}} %this, ptr nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}))677 // M64VS2015-NOT: define weak_odr dso_local dllexport ptr @"??0ExportDefaultedInclassDefs@@QEAA@AEBU0@@Z"(ptr {{[^,]*}} returned {{[^,]*}} %this, ptr nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}))678 679 ExportDefaultedInclassDefs& operator=(const ExportDefaultedInclassDefs&) = default;680 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) ptr @"??4ExportDefaultedInclassDefs@@QAEAAU0@ABU0@@Z"(ptr {{[^,]*}} %this, ptr nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %0)681 // M64-DAG: define weak_odr dso_local dllexport nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) ptr @"??4ExportDefaultedInclassDefs@@QEAAAEAU0@AEBU0@@Z"(ptr {{[^,]*}} %this, ptr nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %0)682};683 684namespace ReferencedInlineMethodInNestedClass {685 struct __declspec(dllexport) S {686 void foo() {687 t->bar();688 }689 struct T {690 void bar() {}691 };692 T *t;693 };694 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?foo@S@ReferencedInlineMethodInNestedClass@@QAEXXZ"695 // M32-DAG: define linkonce_odr dso_local x86_thiscallcc void @"?bar@T@S@ReferencedInlineMethodInNestedClass@@QAEXXZ"696}697 698// MS ignores DLL attributes on partial specializations.699template <typename T> struct PartiallySpecializedClassTemplate {};700template <typename T> struct __declspec(dllexport) PartiallySpecializedClassTemplate<T*> { void f(); };701template <typename T> void PartiallySpecializedClassTemplate<T*>::f() {}702USEMEMFUNC(PartiallySpecializedClassTemplate<void*>, f);703// M32-DAG: define linkonce_odr dso_local x86_thiscallcc void @"?f@?$PartiallySpecializedClassTemplate@PAX@@QAEXXZ"704// G32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @_ZN33PartiallySpecializedClassTemplateIPvE1fEv705// C32-DAG: define weak_odr dso_local dllexport void @_ZN33PartiallySpecializedClassTemplateIPvE1fEv706 707// Attributes on explicit specializations are honored.708template <typename T> struct ExplicitlySpecializedClassTemplate {};709template <> struct __declspec(dllexport) ExplicitlySpecializedClassTemplate<void*> { void f(); };710void ExplicitlySpecializedClassTemplate<void*>::f() {}711USEMEMFUNC(ExplicitlySpecializedClassTemplate<void*>, f);712// M32-DAG: define dso_local dllexport x86_thiscallcc void @"?f@?$ExplicitlySpecializedClassTemplate@PAX@@QAEXXZ"713// G32-DAG: define dso_local dllexport x86_thiscallcc void @_ZN34ExplicitlySpecializedClassTemplateIPvE1fEv714// C32-DAG: define dso_local dllexport void @_ZN34ExplicitlySpecializedClassTemplateIPvE1fEv715 716// MS inherits DLL attributes to partial specializations.717template <typename T> struct __declspec(dllexport) PartiallySpecializedExportedClassTemplate {};718template <typename T> struct PartiallySpecializedExportedClassTemplate<T*> { void f() {} };719USEMEMFUNC(PartiallySpecializedExportedClassTemplate<void*>, f);720// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$PartiallySpecializedExportedClassTemplate@PAX@@QAEXXZ"721// G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN41PartiallySpecializedExportedClassTemplateIPvE1fEv722// C32-DAG: define linkonce_odr dso_local void @_ZN41PartiallySpecializedExportedClassTemplateIPvE1fEv723 724// MS ignores DLL attributes on partial specializations; inheritance still works though.725template <typename T> struct __declspec(dllexport) PartiallySpecializedExportedClassTemplate2 {};726template <typename T> struct __declspec(dllimport) PartiallySpecializedExportedClassTemplate2<T*> { void f(); };727template <typename T> void PartiallySpecializedExportedClassTemplate2<T*>::f() {}728USEMEMFUNC(PartiallySpecializedExportedClassTemplate2<void*>, f);729// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$PartiallySpecializedExportedClassTemplate2@PAX@@QAEXXZ"730// G32-DAG: declare dllimport x86_thiscallcc void @_ZN42PartiallySpecializedExportedClassTemplate2IPvE1fEv731// C32-DAG: declare dllimport void @_ZN42PartiallySpecializedExportedClassTemplate2IPvE1fEv732 733// Attributes on the instantiation take precedence over attributes on the template.734template <typename T> struct __declspec(dllimport) ExplicitlyInstantiatedWithDifferentAttr { void f() {} };735template struct __declspec(dllexport) ExplicitlyInstantiatedWithDifferentAttr<int>;736USEMEMFUNC(ExplicitlyInstantiatedWithDifferentAttr<int>, f);737// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ExplicitlyInstantiatedWithDifferentAttr@H@@QAEXXZ"738 739// Don't create weak dllexport aliases. (PR21373)740struct NonExportedBaseClass {741 virtual ~NonExportedBaseClass();742};743NonExportedBaseClass::~NonExportedBaseClass() {}744 745struct __declspec(dllexport) ExportedDerivedClass : NonExportedBaseClass {};746// M32-DAG: weak_odr dso_local dllexport x86_thiscallcc void @"??1ExportedDerivedClass@@UAE@XZ"747 748// Do not assert about generating code for constexpr functions twice during explicit instantiation (PR21718).749template <typename T> struct ExplicitInstConstexprMembers {750 // Copy assignment operator751 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align 1 dereferenceable(1) ptr @"??4?$ExplicitInstConstexprMembers@X@@QAEAAU0@ABU0@@Z"752 753 constexpr ExplicitInstConstexprMembers() {}754 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$ExplicitInstConstexprMembers@X@@QAE@XZ"755 756 ExplicitInstConstexprMembers(const ExplicitInstConstexprMembers&) = default;757 // M32MSVC2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$ExplicitInstConstexprMembers@X@@QAE@ABU0@@Z"758 759 constexpr int f() const { return 42; }760 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc i32 @"?f@?$ExplicitInstConstexprMembers@X@@QBEHXZ"761};762template struct __declspec(dllexport) ExplicitInstConstexprMembers<void>;763 764template <typename T> struct ExplicitInstantiationDeclTemplate { void f() {} };765extern template struct __declspec(dllexport) ExplicitInstantiationDeclTemplate<int>;766USEMEMFUNC(ExplicitInstantiationDeclTemplate<int>, f);767// M32-DAG: {{declare|define available_externally}} dso_local x86_thiscallcc void @"?f@?$ExplicitInstantiationDeclTemplate@H@@QAEXXZ"768 769template <typename T> struct __declspec(dllexport) ExplicitInstantiationDeclExportedTemplate { void f() {} };770extern template struct ExplicitInstantiationDeclExportedTemplate<int>;771USEMEMFUNC(ExplicitInstantiationDeclExportedTemplate<int>, f);772// M32-DAG: {{declare|define available_externally}} dso_local x86_thiscallcc void @"?f@?$ExplicitInstantiationDeclExportedTemplate@H@@QAEXXZ"773 774template <typename T> struct ExplicitInstantiationDeclExportedDefTemplate { void f() {} ExplicitInstantiationDeclExportedDefTemplate() {} };775extern template struct ExplicitInstantiationDeclExportedDefTemplate<int>;776template struct __declspec(dllexport) ExplicitInstantiationDeclExportedDefTemplate<int>;777USEMEMFUNC(ExplicitInstantiationDeclExportedDefTemplate<int>, f);778// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ExplicitInstantiationDeclExportedDefTemplate@H@@QAEXXZ"779// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$ExplicitInstantiationDeclExportedDefTemplate@H@@QAE@XZ"780// G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN44ExplicitInstantiationDeclExportedDefTemplateIiE1fEv781// C32-DAG: define weak_odr dso_local void @_ZN44ExplicitInstantiationDeclExportedDefTemplateIiE1fEv782 783template <typename T> struct ImplicitInstantiationExportedExplicitInstantiationDefTemplate { virtual void f() {} };784ImplicitInstantiationExportedExplicitInstantiationDefTemplate<int> ImplicitInstantiationExportedExplicitInstantiationDefTemplateInstance;785template struct __declspec(dllexport) ImplicitInstantiationExportedExplicitInstantiationDefTemplate<int>;786USEMEMFUNC(ImplicitInstantiationExportedExplicitInstantiationDefTemplate<int>, f);787// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ImplicitInstantiationExportedExplicitInstantiationDefTemplate@H@@UAEXXZ"788// G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN61ImplicitInstantiationExportedExplicitInstantiationDefTemplateIiE1fEv789// C32-DAG: define weak_odr dso_local void @_ZN61ImplicitInstantiationExportedExplicitInstantiationDefTemplateIiE1fEv790 791template <typename T> struct __declspec(dllexport) ImplicitInstantiationExplicitInstantiationDefExportedTemplate { virtual void f() {} };792ImplicitInstantiationExplicitInstantiationDefExportedTemplate<int> ImplicitInstantiationExplicitInstantiationDefExportedTemplateInstance;793template struct ImplicitInstantiationExplicitInstantiationDefExportedTemplate<int>;794USEMEMFUNC(ImplicitInstantiationExplicitInstantiationDefExportedTemplate<int>, f);795// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ImplicitInstantiationExplicitInstantiationDefExportedTemplate@H@@UAEXXZ"796// G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN61ImplicitInstantiationExplicitInstantiationDefExportedTemplateIiE1fEv797// C32-DAG: define weak_odr dso_local void @_ZN61ImplicitInstantiationExplicitInstantiationDefExportedTemplateIiE1fEv798 799template <typename T> struct __declspec(dllexport) ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate { virtual void f() {} };800ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate<int> ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplateInstance;801template struct __declspec(dllexport) ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate<int>;802USEMEMFUNC(ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate<int>, f);803// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate@H@@UAEXXZ"804// G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN69ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplateIiE1fEv805// C32-DAG: define weak_odr dso_local void @_ZN69ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplateIiE1fEv806 807namespace { struct InternalLinkageType {}; }808struct __declspec(dllexport) PR23308 {809 void f(InternalLinkageType*);810};811void PR23308::f(InternalLinkageType*) {}812long use(PR23308* p) { p->f(nullptr); }813// M32-DAG: define internal x86_thiscallcc void @"?f@PR23308@@QAEXPAUInternalLinkageType@?A0x{{[^@]*}}@@@Z"814 815template <typename T> struct PR23770BaseTemplate { void f() {} };816template <typename T> struct PR23770DerivedTemplate : PR23770BaseTemplate<int> {};817extern template struct PR23770DerivedTemplate<int>;818template struct __declspec(dllexport) PR23770DerivedTemplate<int>;819// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$PR23770BaseTemplate@H@@QAEXXZ"820 821namespace InClassInits {822 823struct __declspec(dllexport) S {824 int x = 42;825};826// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0S@InClassInits@@QAE@XZ"827 828// dllexport an already instantiated class template.829template <typename T> struct Base {830 int x = 42;831};832Base<int> base;833struct __declspec(dllexport) T : Base<int> { };834// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$Base@H@InClassInits@@QAE@XZ"835 836struct A { A(int); };837struct __declspec(dllexport) U {838 // Class with both default constructor closure and in-class initializer.839 U(A = 0) {}840 int x = 0;841};842// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0U@InClassInits@@QAE@UA@1@@Z"843 844struct Evil {845 template <typename T> struct Base {846 int x = 0;847 };848 struct S : Base<int> {};849 // The already instantiated Base<int> becomes dllexported below, but the850 // in-class initializer for Base<>::x still hasn't been parsed, so emitting851 // the default ctor must still be delayed.852 struct __declspec(dllexport) T : Base<int> {};853};854// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$Base@H@Evil@InClassInits@@QAE@XZ"855 856template <typename T> struct Foo {};857template <typename T> struct Bar {858 Bar<T> &operator=(Foo<T>) {}859};860struct __declspec(dllexport) Baz {861 Bar<int> n;862};863// After parsing Baz, in ActOnFinishCXXNonNestedClass we would synthesize864// Baz's operator=, causing instantiation of Foo<int> after which865// ActOnFinishCXXNonNestedClass is called, and we would bite our own tail.866// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align 1 dereferenceable(1) ptr @"??4Baz@InClassInits@@QAEAAU01@ABU01@@Z"867 868// Trying to define the explicitly defaulted ctor must be delayed until the869// in-class initializer for x has been processed.870struct PR40006 {871 __declspec(dllexport) PR40006() = default;872 int x = 42;873};874// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0PR40006@InClassInits@@QAE@XZ"875 876namespace pr40006 {877// Delay emitting the method also past the instantiation of Tmpl<Inner>, i.e.878// until the top-level class Outer is completely finished.879template<typename> struct Tmpl {};880struct Outer {881 struct Inner {882 __declspec(dllexport) Inner() = default;883 unsigned int x = 0;884 };885 Tmpl<Inner> y;886};887// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0Inner@Outer@pr40006@InClassInits@@QAE@XZ"888}889 890// PR42857: Clang would try to emit the non-trivial explicitly defaulted891// dllexport ctor twice when doing an explicit instantiation definition.892struct Qux { Qux(); };893template <typename T> struct PR42857 { __declspec(dllexport) PR42857() = default; Qux q; };894template struct PR42857<int>;895// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$PR42857@H@InClassInits@@QAE@XZ"896 897}898 899// We had an issue where instantiating A would force emission of B's delayed900// exported methods.901namespace pr26490 {902template <typename T> struct A { };903struct __declspec(dllexport) B {904 B(int = 0) {}905 A<int> m_fn1() {}906};907// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??_FB@pr26490@@QAEXXZ"908}909 910// dllexport trumps dllimport on an explicit instantiation.911template <typename T> struct ExplicitInstantiationTwoAttributes { void f() {} };912template struct __declspec(dllexport) __declspec(dllimport) ExplicitInstantiationTwoAttributes<int>;913// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ExplicitInstantiationTwoAttributes@H@@QAEXXZ"914 915namespace pr34849 {916// Specializations of exported class template member functions get exported.917template <typename> struct __declspec(dllexport) ExportedClassTemplate { void foo(); };918template<> void ExportedClassTemplate<int>::foo() {}919template struct ExportedClassTemplate<int>;920// M32-DAG: define dso_local dllexport x86_thiscallcc void @"?foo@?$ExportedClassTemplate@H@pr34849@@QAEXXZ"921 922// Specializations of exported class member template functions do not get exported.923struct __declspec(dllexport) ExportedClass { template <typename> void bar() ; };924template<> void ExportedClass::bar<int>() {}925// M32-DAG: define dso_local x86_thiscallcc void @"??$bar@H@ExportedClass@pr34849@@QAEXXZ"926template <typename> struct __declspec(dllexport) ExportedClassTemplate2 { template <typename> void baz(); };927template<> template<> void ExportedClassTemplate2<int>::baz<int>() {}928// M32-DAG: define dso_local x86_thiscallcc void @"??$baz@H@?$ExportedClassTemplate2@H@pr34849@@QAEXXZ"929}930 931namespace pr47683 {932struct X { X() {} };933 934template <typename> struct S {935 S() = default;936 X x;937};938template struct __declspec(dllexport) S<int>;939// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$S@H@pr47683@@QAE@XZ"940 941template <typename> struct T {942 T() = default;943 X x;944};945extern template struct T<int>;946template struct __declspec(dllexport) T<int>;947// Don't assert about multiple codegen for explicitly defaulted method in explicit instantiation def.948// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$T@H@pr47683@@QAE@XZ"949 950template <typename> struct U {951 U();952 X x;953};954template <typename T> U<T>::U() = default;955extern template struct U<int>;956template struct __declspec(dllexport) U<int>;957// Same as T, but with out-of-line ctor.958// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$U@H@pr47683@@QAE@XZ"959}960 961//===----------------------------------------------------------------------===//962// Classes with template base classes963//===----------------------------------------------------------------------===//964 965template <typename T> struct ClassTemplate { void func(); };966template <typename T> void ClassTemplate<T>::func() {}967template <typename T> struct __declspec(dllexport) ExportedClassTemplate { void func(); };968template <typename T> void ExportedClassTemplate<T>::func() {}969template <typename T> struct __declspec(dllimport) ImportedClassTemplate { void func(); };970template <typename T> void ImportedClassTemplate<T>::func() {}971 972template <typename T> struct ExplicitlySpecializedTemplate { void func() {} };973template <> struct ExplicitlySpecializedTemplate<int> { void func(); };974void ExplicitlySpecializedTemplate<int>::func() {}975template <typename T> struct ExplicitlyExportSpecializedTemplate { void func() {} };976template <> struct __declspec(dllexport) ExplicitlyExportSpecializedTemplate<int> { void func(); };977void ExplicitlyExportSpecializedTemplate<int>::func() {}978template <typename T> struct ExplicitlyImportSpecializedTemplate { void func(); };979template <> struct __declspec(dllimport) ExplicitlyImportSpecializedTemplate<int> { void func(); };980 981template <typename T> struct ExplicitlyInstantiatedTemplate { void func(); };982template <typename T> void ExplicitlyInstantiatedTemplate<T>::func() {}983template struct ExplicitlyInstantiatedTemplate<int>;984template <typename T> struct ExplicitlyExportInstantiatedTemplate { void func(); };985template <typename T> void ExplicitlyExportInstantiatedTemplate<T>::func() {}986template struct __declspec(dllexport) ExplicitlyExportInstantiatedTemplate<int>;987template <typename T> struct ExplicitlyImportInstantiatedTemplate { void func(); };988template struct __declspec(dllimport) ExplicitlyImportInstantiatedTemplate<int>;989 990 991// MS: ClassTemplate<int> gets exported.992struct __declspec(dllexport) DerivedFromTemplate : public ClassTemplate<int> {};993USEMEMFUNC(DerivedFromTemplate, func)994// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ClassTemplate@H@@QAEXXZ"995// G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN13ClassTemplateIiE4funcEv996// C32-DAG: define linkonce_odr dso_local void @_ZN13ClassTemplateIiE4funcEv997// PS-DAG: define weak_odr dllexport void @_ZN13ClassTemplateIiE4funcEv998 999// ExportedTemplate is explicitly exported.1000struct __declspec(dllexport) DerivedFromExportedTemplate : public ExportedClassTemplate<int> {};1001USEMEMFUNC(DerivedFromExportedTemplate, func)1002// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ExportedClassTemplate@H@@QAEXXZ"1003// G32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @_ZN21ExportedClassTemplateIiE4funcEv1004// C32-DAG: define weak_odr dso_local dllexport void @_ZN21ExportedClassTemplateIiE4funcEv1005// PS-DAG: define weak_odr dllexport void @_ZN21ExportedClassTemplateIiE4funcEv1006 1007// ImportedClassTemplate is explicitly imported.1008struct __declspec(dllexport) DerivedFromImportedTemplate : public ImportedClassTemplate<int> {};1009USEMEMFUNC(DerivedFromImportedTemplate, func)1010// M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"?func@?$ImportedClassTemplate@H@@QAEXXZ"1011// G32-DAG: declare dllimport x86_thiscallcc void @_ZN21ImportedClassTemplateIiE4funcEv1012// C32-DAG: declare dllimport void @_ZN21ImportedClassTemplateIiE4funcEv1013// PS-DAG: declare dllimport void @_ZN21ImportedClassTemplateIiE4funcEv1014 1015// Base class already implicitly instantiated without dll attribute.1016struct DerivedFromTemplateD : public ClassTemplate<double> {};1017struct __declspec(dllexport) DerivedFromTemplateD2 : public ClassTemplate<double> {};1018USEMEMFUNC(DerivedFromTemplateD2, func)1019// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ClassTemplate@N@@QAEXXZ"1020// G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN13ClassTemplateIdE4funcEv1021// C32-DAG: define linkonce_odr dso_local void @_ZN13ClassTemplateIdE4funcEv1022// PS-DAG: define weak_odr dllexport void @_ZN13ClassTemplateIdE4funcEv1023 1024// MS: Base class already instantiated with different dll attribute.1025struct __declspec(dllimport) DerivedFromTemplateB : public ClassTemplate<bool> {};1026struct __declspec(dllexport) DerivedFromTemplateB2 : public ClassTemplate<bool> {};1027USEMEMFUNC(DerivedFromTemplateB2, func)1028// M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"?func@?$ClassTemplate@_N@@QAEXXZ"1029// G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN13ClassTemplateIbE4funcEv1030// C32-DAG: define linkonce_odr dso_local void @_ZN13ClassTemplateIbE4funcEv1031// PS-DAG: declare dllimport void @_ZN13ClassTemplateIbE4funcEv1032 1033// Base class already specialized without dll attribute.1034struct __declspec(dllexport) DerivedFromExplicitlySpecializedTemplate : public ExplicitlySpecializedTemplate<int> {};1035USEMEMFUNC(DerivedFromExplicitlySpecializedTemplate, func)1036// M32-DAG: define dso_local x86_thiscallcc void @"?func@?$ExplicitlySpecializedTemplate@H@@QAEXXZ"1037// G32-DAG: define dso_local x86_thiscallcc void @_ZN29ExplicitlySpecializedTemplateIiE4funcEv1038// C32-DAG: define dso_local void @_ZN29ExplicitlySpecializedTemplateIiE4funcEv1039// PS-DAG: define dso_local void @_ZN29ExplicitlySpecializedTemplateIiE4funcEv1040 1041// Base class alredy specialized with export attribute.1042struct __declspec(dllexport) DerivedFromExplicitlyExportSpecializedTemplate : public ExplicitlyExportSpecializedTemplate<int> {};1043USEMEMFUNC(DerivedFromExplicitlyExportSpecializedTemplate, func)1044// M32-DAG: define dso_local dllexport x86_thiscallcc void @"?func@?$ExplicitlyExportSpecializedTemplate@H@@QAEXXZ"1045// G32-DAG: define dso_local dllexport x86_thiscallcc void @_ZN35ExplicitlyExportSpecializedTemplateIiE4funcEv1046// C32-DAG: define dso_local dllexport void @_ZN35ExplicitlyExportSpecializedTemplateIiE4funcEv1047// PS-DAG: define dso_local dllexport void @_ZN35ExplicitlyExportSpecializedTemplateIiE4funcEv1048 1049// Base class already specialized with import attribute.1050struct __declspec(dllexport) DerivedFromExplicitlyImportSpecializedTemplate : public ExplicitlyImportSpecializedTemplate<int> {};1051USEMEMFUNC(DerivedFromExplicitlyImportSpecializedTemplate, func)1052// M32-DAG: declare dllimport x86_thiscallcc void @"?func@?$ExplicitlyImportSpecializedTemplate@H@@QAEXXZ"1053// G32-DAG: declare dllimport x86_thiscallcc void @_ZN35ExplicitlyImportSpecializedTemplateIiE4funcEv1054// C32-DAG: declare dllimport void @_ZN35ExplicitlyImportSpecializedTemplateIiE4funcEv1055// PS-DAG: declare dllimport void @_ZN35ExplicitlyImportSpecializedTemplateIiE4funcEv1056 1057// Base class already instantiated without dll attribute.1058struct __declspec(dllexport) DerivedFromExplicitlyInstantiatedTemplate : public ExplicitlyInstantiatedTemplate<int> {};1059USEMEMFUNC(DerivedFromExplicitlyInstantiatedTemplate, func)1060// M32-DAG: define weak_odr dso_local x86_thiscallcc void @"?func@?$ExplicitlyInstantiatedTemplate@H@@QAEXXZ"1061// G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN30ExplicitlyInstantiatedTemplateIiE4funcEv1062// C32-DAG: define weak_odr dso_local void @_ZN30ExplicitlyInstantiatedTemplateIiE4funcEv1063// PS-DAG: define weak_odr void @_ZN30ExplicitlyInstantiatedTemplateIiE4funcEv1064 1065// Base class already instantiated with export attribute.1066struct __declspec(dllexport) DerivedFromExplicitlyExportInstantiatedTemplate : public ExplicitlyExportInstantiatedTemplate<int> {};1067USEMEMFUNC(DerivedFromExplicitlyExportInstantiatedTemplate, func)1068// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ExplicitlyExportInstantiatedTemplate@H@@QAEXXZ"1069// G32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @_ZN36ExplicitlyExportInstantiatedTemplateIiE4funcEv1070// C32-DAG: define weak_odr dso_local dllexport void @_ZN36ExplicitlyExportInstantiatedTemplateIiE4funcEv1071// PS-DAG: define weak_odr dllexport void @_ZN36ExplicitlyExportInstantiatedTemplateIiE4funcEv1072 1073// Base class already instantiated with import attribute.1074struct __declspec(dllexport) DerivedFromExplicitlyImportInstantiatedTemplate : public ExplicitlyImportInstantiatedTemplate<int> {};1075USEMEMFUNC(DerivedFromExplicitlyImportInstantiatedTemplate, func)1076// M32-DAG: declare dllimport x86_thiscallcc void @"?func@?$ExplicitlyImportInstantiatedTemplate@H@@QAEXXZ"1077// G32-DAG: declare dllimport x86_thiscallcc void @_ZN36ExplicitlyImportInstantiatedTemplateIiE4funcEv1078// C32-DAG: declare dllimport void @_ZN36ExplicitlyImportInstantiatedTemplateIiE4funcEv1079// PS-DAG: declare dllimport void @_ZN36ExplicitlyImportInstantiatedTemplateIiE4funcEv1080 1081// MS: A dll attribute propagates through multiple levels of instantiation.1082template <typename T> struct TopClass { void func() {} };1083template <typename T> struct MiddleClass : public TopClass<T> { };1084struct __declspec(dllexport) BottomClass : public MiddleClass<int> { };1085USEMEMFUNC(BottomClass, func)1086// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$TopClass@H@@QAEXXZ"1087// G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN8TopClassIiE4funcEv1088// C32-DAG: define linkonce_odr dso_local void @_ZN8TopClassIiE4funcEv1089// PS-DAG: define weak_odr dllexport void @_ZN8TopClassIiE4funcEv1090 1091template <typename T> struct ExplicitInstantiationDeclTemplateBase { void func() {} };1092extern template struct ExplicitInstantiationDeclTemplateBase<int>;1093struct __declspec(dllexport) DerivedFromExplicitInstantiationDeclTemplateBase : public ExplicitInstantiationDeclTemplateBase<int> {};1094template struct ExplicitInstantiationDeclTemplateBase<int>;1095// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ExplicitInstantiationDeclTemplateBase@H@@QAEXXZ"1096// G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN37ExplicitInstantiationDeclTemplateBaseIiE4funcEv1097// C32-DAG: define weak_odr dso_local void @_ZN37ExplicitInstantiationDeclTemplateBaseIiE4funcEv1098// PS-DAG: define weak_odr dllexport void @_ZN37ExplicitInstantiationDeclTemplateBaseIiE4funcEv1099 1100// PR260761101struct LayerSelectionBound;1102template <typename> struct Selection {};1103typedef Selection<LayerSelectionBound> LayerSelection;1104struct LayerImpl;1105struct __declspec(dllexport) LayerTreeImpl {1106 struct __declspec(dllexport) ElementLayers {1107 LayerImpl *main = nullptr;1108 };1109 LayerSelection foo;1110};1111// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0ElementLayers@LayerTreeImpl@@QAE@XZ"1112// M64-DAG: define weak_odr dso_local dllexport ptr @"??0ElementLayers@LayerTreeImpl@@QEAA@XZ"1113 1114namespace pr39496 {1115// Make sure dll attribute are inherited by static locals also in template1116// specializations.1117template <typename> struct __declspec(dllexport) S { int foo() { static int x; return x++; } };1118int foo() { S<int> s; return s.foo(); }1119// MSC-DAG: @"?x@?{{1|2}}??foo@?$S@H@pr39496@@Q{{[A-Z]*}}HXZ@4HA" = weak_odr dso_local dllexport global i32 0, comdat, align 41120 1121template <typename> struct T { int foo() { static int x; return x++; } };1122template struct __declspec(dllexport) T<int>;1123// MSC-DAG: @"?x@?{{1|2}}??foo@?$T@H@pr39496@@Q{{[A-Z]*}}HXZ@4HA" = weak_odr dso_local dllexport global i32 0, comdat, align 41124}1125 1126class __declspec(dllexport) ACE_Shared_Object {1127public:1128 virtual ~ACE_Shared_Object();1129};1130class __declspec(dllexport) ACE_Service_Object : public ACE_Shared_Object {};1131// Implicit move constructor declaration.1132// MSVC2015-DAG: define weak_odr dso_local dllexport {{.+}}ACE_Service_Object@@Q{{.+}}@$$Q1133// The declarations should not be exported.1134// MSVC2013-NOT: define weak_odr dso_local dllexport {{.+}}ACE_Service_Object@@Q{{.+}}@$$Q1135