clang/test/CodeGenCXX/dllexport.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 %s
   2 // 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 %s
   3
   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 %s
   5 // 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 %s
   6
   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 %s
   8 // 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 %s
   9 // 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 %s
  10 // 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 %s
  11
  12 // Helper structs to make templates more expressive.
  13 struct ImplicitInst_Exported {};
  14 struct ExplicitDecl_Exported {};
  15 struct ExplicitInst_Exported {};
  16 struct ExplicitSpec_Exported {};
  17 struct ExplicitSpec_Def_Exported {};
  18 struct ExplicitSpec_InlineDef_Exported {};
  19 struct ExplicitSpec_NotExported {};
  20 struct External { int v; };
  21
  22 #define JOIN2(x, y) x##y
  23 #define JOIN(x, y) JOIN2(x, y)
  24 #define UNIQ(name) JOIN(name, __LINE__)
  25 #define USEVAR(var) int UNIQ(use)() { return var; }
  26 #define USE(func) void UNIQ(use)() { func(); }
  27 #define USEMEMFUNC(class, func) void (class::*UNIQ(use)())() { return &class::func; }
  28 #define INSTVAR(var) template int var;
  29 #define INST(func) template void func();
  30
  31 // The vftable for struct W is comdat largest because we have RTTI.
  32 // M32-DAG: $"??_7W@@6B@" = comdat largest
  33
  34 // M32-DAG: $"?smember@?$Base@H@PR32992@@0HA" = comdat any
  35
  36
  37 //===----------------------------------------------------------------------===//
  38 // Globals
  39 //===----------------------------------------------------------------------===//
  40
  41 // Declarations are not exported.
  42 // MSC-NOT: @"?ExternGlobalDecl@@3HA"
  43 // GNU-NOT: @ExternGlobalDecl
  44 __declspec(dllexport) extern int ExternGlobalDecl;
  45
  46 // M64-DAG: @__ImageBase = external dso_local constant i8
  47
  48 // GNU-DAG: @_ZTVN10__cxxabiv117__class_type_infoE = external global
  49
  50 // dllexport implies a definition.
  51 // MSC-DAG: @"?GlobalDef@@3HA" = dso_local dllexport global i32 0, align 4
  52 // GNU-DAG: @GlobalDef            = dso_local dllexport global i32 0, align 4
  53 __declspec(dllexport) int GlobalDef;
  54
  55 // Export definition.
  56 // MSC-DAG: @"?GlobalInit1@@3HA" = dso_local dllexport global i32 1, align 4
  57 // GNU-DAG: @GlobalInit1            = dso_local dllexport global i32 1, align 4
  58 __declspec(dllexport) int GlobalInit1 = 1;
  59
  60 // MSC-DAG: @"?GlobalInit2@@3HA" = dso_local dllexport global i32 1, align 4
  61 // GNU-DAG: @GlobalInit2            = dso_local dllexport global i32 1, align 4
  62 int __declspec(dllexport) GlobalInit2 = 1;
  63
  64 // Declare, then export definition.
  65 // MSC-DAG: @"?GlobalDeclInit@@3HA" = dso_local dllexport global i32 1, align 4
  66 // GNU-DAG: @GlobalDeclInit            = dso_local dllexport global i32 1, align 4
  67 __declspec(dllexport) extern int GlobalDeclInit;
  68 int GlobalDeclInit = 1;
  69
  70 // Redeclarations
  71 // MSC-DAG: @"?GlobalRedecl1@@3HA" = dso_local dllexport global i32 0, align 4
  72 // GNU-DAG: @GlobalRedecl1            = dso_local dllexport global i32 0, align 4
  73 __declspec(dllexport) extern int GlobalRedecl1;
  74 __declspec(dllexport)        int GlobalRedecl1;
  75
  76 // MSC-DAG: @"?GlobalRedecl2@@3HA" = dso_local dllexport global i32 0, align 4
  77 // GNU-DAG: @GlobalRedecl2            = dso_local dllexport global i32 0, align 4
  78 __declspec(dllexport) extern int GlobalRedecl2;
  79                              int GlobalRedecl2;
  80
  81 // MSC-DAG: @"?ExternalGlobal@ns@@3HA" = dso_local dllexport global i32 0, align 4
  82 // GNU-DAG: @_ZN2ns14ExternalGlobalE      = dso_local dllexport global i32 0, align 4
  83 namespace ns { __declspec(dllexport) int ExternalGlobal; }
  84
  85 // MSC-DAG: @"?ExternalAutoTypeGlobal@@3UExternal@@A" = dso_local dllexport global %struct.External zeroinitializer, align 4
  86 // GNU-DAG: @ExternalAutoTypeGlobal                      = dso_local dllexport global %struct.External zeroinitializer, align 4
  87 __declspec(dllexport) auto ExternalAutoTypeGlobal = External();
  88
  89 int f();
  90 // MSC-DAG: @"?x@?1??nonInlineStaticLocalsFunc@@YAHXZ@4HA" = internal {{(unnamed_addr )*}}global i32 0
  91 // MSC-DAG: @"?$S1@?1??nonInlineStaticLocalsFunc@@YAHXZ@4IA" = internal {{(unnamed_addr )*}}global i32 0
  92 int __declspec(dllexport) nonInlineStaticLocalsFunc() {
  93   static int x = f();
  94   return x++;
  95 };
  96
  97 // MSC-DAG: @"?x@?1??inlineStaticLocalsFunc@@YAHXZ@4HA" = weak_odr dso_local dllexport global i32 0, comdat
  98 // MSC-DAG: @"??_B?1??inlineStaticLocalsFunc@@YAHXZ@51" = weak_odr dllexport global i32 0, comdat
  99 // Note: MinGW doesn't seem to export the static local here.
 100 inline int __declspec(dllexport) inlineStaticLocalsFunc() {
 101   static int x = f();
 102   return x++;
 103 }
 104
 105 namespace PR32992 {
 106 // Static data members of a instantiated base class should be exported.
 107 template <class T>
 108 class Base {
 109   virtual void myfunc() {}
 110   static int smember;
 111 };
 112 // MSC-DAG: @"?smember@?$Base@H@PR32992@@0HA" = weak_odr dso_local dllexport global i32 77, comdat, align 4
 113 template <class T> int Base<T>::smember = 77;
 114 template <class T>
 115 class __declspec(dllexport) Derived2 : Base<T> {
 116   void myfunc() {}
 117 };
 118 class Derived : public Derived2<int> {
 119   void myfunc() {}
 120 };
 121 }  // namespace PR32992
 122
 123 namespace PR32992_1 {
 124 namespace a { enum b { c }; }
 125 template <typename> class d {
 126    static constexpr a::b e = a::c;
 127 };
 128 namespace f {
 129   template <typename g = int> class h : d<g> {};
 130 }
 131 using f::h;
 132 class __declspec(dllexport) i : h<> {};
 133 }
 134
 135 //===----------------------------------------------------------------------===//
 136 // Variable templates
 137 //===----------------------------------------------------------------------===//
 138
 139 // Declarations are not exported.
 140
 141 // MSC-DAG: @"??$VarTmplImplicitDef@UImplicitInst_Exported@@@@3HA" = external dso_local global
 142 // GNU-DAG: @_Z18VarTmplImplicitDefI21ImplicitInst_ExportedE          = external global
 143 template<typename T> __declspec(dllexport) extern int VarTmplImplicitDef;
 144 USEVAR(VarTmplImplicitDef<ImplicitInst_Exported>)
 145
 146 // Export definition.
 147 // MSC-DAG: @"??$VarTmplInit1@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
 148 // GNU-DAG: @_Z12VarTmplInit1I21ExplicitInst_ExportedE          = weak_odr dso_local dllexport global i32 1, comdat, align 4
 149 template<typename T> __declspec(dllexport) int VarTmplInit1 = 1;
 150 INSTVAR(VarTmplInit1<ExplicitInst_Exported>)
 151
 152 // MSC-DAG: @"??$VarTmplInit2@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
 153 // GNU-DAG: @_Z12VarTmplInit2I21ExplicitInst_ExportedE          = weak_odr dso_local dllexport global i32 1, comdat, align 4
 154 template<typename T> int __declspec(dllexport) VarTmplInit2 = 1;
 155 INSTVAR(VarTmplInit2<ExplicitInst_Exported>)
 156
 157 // Declare, then export definition.
 158 // MSC-DAG: @"??$VarTmplDeclInit@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
 159 // GNU-DAG: @_Z15VarTmplDeclInitI21ExplicitInst_ExportedE          = weak_odr dso_local dllexport global i32 1, comdat, align 4
 160 template<typename T> __declspec(dllexport) extern int VarTmplDeclInit;
 161 template<typename T>                              int VarTmplDeclInit = 1;
 162 INSTVAR(VarTmplDeclInit<ExplicitInst_Exported>)
 163
 164 // Redeclarations
 165 // MSC-DAG: @"??$VarTmplRedecl1@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
 166 // GNU-DAG: @_Z14VarTmplRedecl1I21ExplicitInst_ExportedE          = weak_odr dso_local dllexport global i32 1, comdat, align 4
 167 template<typename T> __declspec(dllexport) extern int VarTmplRedecl1;
 168 template<typename T> __declspec(dllexport)        int VarTmplRedecl1 = 1;
 169 INSTVAR(VarTmplRedecl1<ExplicitInst_Exported>)
 170
 171 // MSC-DAG: @"??$VarTmplRedecl2@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
 172 // GNU-DAG: @_Z14VarTmplRedecl2I21ExplicitInst_ExportedE          = weak_odr dso_local dllexport global i32 1, comdat, align 4
 173 template<typename T> __declspec(dllexport) extern int VarTmplRedecl2;
 174 template<typename T>                              int VarTmplRedecl2 = 1;
 175 INSTVAR(VarTmplRedecl2<ExplicitInst_Exported>)
 176
 177 // MSC-DAG: @"??$ExternalVarTmpl@UExplicitInst_Exported@@@ns@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
 178 // GNU-DAG: @_ZN2ns15ExternalVarTmplI21ExplicitInst_ExportedEE        = weak_odr dso_local dllexport global i32 1, comdat, align 4
 179 namespace ns { template<typename T> __declspec(dllexport) int ExternalVarTmpl = 1; }
 180 INSTVAR(ns::ExternalVarTmpl<ExplicitInst_Exported>)
 181
 182 // MSC-DAG: @"??$ExternalAutoTypeVarTmpl@UExplicitInst_Exported@@@@3UExternal@@A" = weak_odr dso_local dllexport global %struct.External zeroinitializer, comdat, align 4
 183 // GNU-DAG: @_Z23ExternalAutoTypeVarTmplI21ExplicitInst_ExportedE                    = weak_odr dso_local dllexport global %struct.External zeroinitializer, comdat, align 4
 184 template<typename T> __declspec(dllexport) auto ExternalAutoTypeVarTmpl = External();
 185 template External ExternalAutoTypeVarTmpl<ExplicitInst_Exported>;
 186
 187
 188 template<typename T> int VarTmpl = 1;
 189 template<typename T> __declspec(dllexport) int ExportedVarTmpl = 1;
 190
 191 // Export implicit instantiation of an exported variable template.
 192 // MSC-DAG: @"??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
 193 // GNU-DAG: @_Z15ExportedVarTmplI21ImplicitInst_ExportedE          = weak_odr dso_local dllexport global i32 1, comdat, align 4
 194 USEVAR(ExportedVarTmpl<ImplicitInst_Exported>)
 195
 196 // Export explicit instantiation declaration of an exported variable template.
 197 // MSC-DAG: @"??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
 198 // GNU-DAG: @_Z15ExportedVarTmplI21ExplicitDecl_ExportedE          = weak_odr dso_local dllexport global i32 1, comdat, align 4
 199 extern template int ExportedVarTmpl<ExplicitDecl_Exported>;
 200        template int ExportedVarTmpl<ExplicitDecl_Exported>;
 201
 202 // Export explicit instantiation definition of an exported variable template.
 203 // MSC-DAG: @"??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
 204 // GNU-DAG: @_Z15ExportedVarTmplI21ExplicitInst_ExportedE          = weak_odr dso_local dllexport global i32 1, comdat, align 4
 205 template __declspec(dllexport) int ExportedVarTmpl<ExplicitInst_Exported>;
 206
 207 // Export specialization of an exported variable template.
 208 // MSC-DAG: @"??$ExportedVarTmpl@UExplicitSpec_Exported@@@@3HA" = dso_local dllexport global i32 0, align 4
 209 // GNU-DAG: @_Z15ExportedVarTmplI21ExplicitSpec_ExportedE          = dso_local dllexport global i32 0, align 4
 210 template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Exported>;
 211
 212 // MSC-DAG: @"??$ExportedVarTmpl@UExplicitSpec_Def_Exported@@@@3HA" = dso_local dllexport global i32 1, align 4
 213 // GNU-DAG: @_Z15ExportedVarTmplI25ExplicitSpec_Def_ExportedE          = dso_local dllexport global i32 1, align 4
 214 template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Def_Exported> = 1;
 215
 216 // Not exporting specialization of an exported variable template without
 217 // explicit dllexport.
 218 // MSC-DAG: @"??$ExportedVarTmpl@UExplicitSpec_NotExported@@@@3HA" = dso_local global i32 0, align 4
 219 // GNU-DAG: @_Z15ExportedVarTmplI24ExplicitSpec_NotExportedE          = dso_local global i32 0, align 4
 220 template<> int ExportedVarTmpl<ExplicitSpec_NotExported>;
 221
 222
 223 // Export explicit instantiation declaration of a non-exported variable template.
 224 // MSC-DAG: @"??$VarTmpl@UExplicitDecl_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
 225 // GNU-DAG: @_Z7VarTmplI21ExplicitDecl_ExportedE           = weak_odr dso_local dllexport global i32 1, comdat, align 4
 226 extern template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>;
 227        template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>;
 228
 229 // Export explicit instantiation definition of a non-exported variable template.
 230 // MSC-DAG: @"??$VarTmpl@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
 231 // GNU-DAG: @_Z7VarTmplI21ExplicitInst_ExportedE           = weak_odr dso_local dllexport global i32 1, comdat, align 4
 232 template __declspec(dllexport) int VarTmpl<ExplicitInst_Exported>;
 233
 234 // Export specialization of a non-exported variable template.
 235 // MSC-DAG: @"??$VarTmpl@UExplicitSpec_Exported@@@@3HA" = dso_local dllexport global i32 0, align 4
 236 // GNU-DAG: @_Z7VarTmplI21ExplicitSpec_ExportedE           = dso_local dllexport global i32 0, align 4
 237 template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Exported>;
 238
 239 // MSC-DAG: @"??$VarTmpl@UExplicitSpec_Def_Exported@@@@3HA" = dso_local dllexport global i32 1, align 4
 240 // GNU-DAG: @_Z7VarTmplI25ExplicitSpec_Def_ExportedE           = dso_local dllexport global i32 1, align 4
 241 template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Def_Exported> = 1;
 242
 243
 244
 245 //===----------------------------------------------------------------------===//
 246 // Functions
 247 //===----------------------------------------------------------------------===//
 248
 249 // Declarations are not exported.
 250
 251 // Export function definition.
 252 // MSC-DAG: define dso_local dllexport void @"?def@@YAXXZ"()
 253 // GNU-DAG: define dso_local dllexport void @_Z3defv()
 254 __declspec(dllexport) void def() {}
 255
 256 // extern "C"
 257 // MSC-DAG: define dso_local dllexport void @externC()
 258 // GNU-DAG: define dso_local dllexport void @externC()
 259 extern "C" __declspec(dllexport) void externC() {}
 260
 261 // Export inline function.
 262 // MSC-DAG: define weak_odr dso_local dllexport void @"?inlineFunc@@YAXXZ"()
 263 // GNU-DAG: define weak_odr dso_local dllexport void @_Z10inlineFuncv()
 264 __declspec(dllexport) inline void inlineFunc() {}
 265
 266 // MSC-DAG: define weak_odr dso_local dllexport void @"?inlineDecl@@YAXXZ"()
 267 // GNU-DAG: define weak_odr dso_local dllexport void @_Z10inlineDeclv()
 268 __declspec(dllexport) inline void inlineDecl();
 269                              void inlineDecl() {}
 270
 271 // MSC-DAG: define weak_odr dso_local dllexport void @"?inlineDef@@YAXXZ"()
 272 // GNU-DAG: define weak_odr dso_local dllexport void @_Z9inlineDefv()
 273 __declspec(dllexport) void inlineDef();
 274                inline void inlineDef() {}
 275
 276 // Redeclarations
 277 // MSC-DAG: define dso_local dllexport void @"?redecl1@@YAXXZ"()
 278 // GNU-DAG: define dso_local dllexport void @_Z7redecl1v()
 279 __declspec(dllexport) void redecl1();
 280 __declspec(dllexport) void redecl1() {}
 281
 282 // MSC-DAG: define dso_local dllexport void @"?redecl2@@YAXXZ"()
 283 // GNU-DAG: define dso_local dllexport void @_Z7redecl2v()
 284 __declspec(dllexport) void redecl2();
 285                       void redecl2() {}
 286
 287 // Friend functions
 288 // MSC-DAG: define dso_local dllexport void @"?friend1@@YAXXZ"()
 289 // GNU-DAG: define dso_local dllexport void @_Z7friend1v()
 290 // MSC-DAG: define dso_local dllexport void @"?friend2@@YAXXZ"()
 291 // GNU-DAG: define dso_local dllexport void @_Z7friend2v()
 292 struct FuncFriend {
 293   friend __declspec(dllexport) void friend1();
 294   friend __declspec(dllexport) void friend2();
 295 };
 296 __declspec(dllexport) void friend1() {}
 297                       void friend2() {}
 298
 299 // MSC-DAG: define dso_local dllexport void @"?func@Befriended@@SAXXZ"()
 300 // GNU-DAG: define dso_local dllexport void @_ZN10Befriended4funcEv()
 301 struct __declspec(dllexport) Befriended {
 302   static void func();
 303   struct Befriending {
 304     friend void Befriended::func();
 305   };
 306 };
 307 void Befriended::func() {}
 308
 309 // Implicit declarations can be redeclared with dllexport.
 310 // MSC-DAG: define dso_local dllexport nonnull ptr @"??2@{{YAPAXI|YAPEAX_K}}@Z"(
 311 // GNU-DAG: define dso_local dllexport nonnull ptr @_Znw{{[yj]}}(
 312 void* alloc(__SIZE_TYPE__ n);
 313 __declspec(dllexport) void* operator new(__SIZE_TYPE__ n) { return alloc(n); }
 314
 315 // MSC-DAG: define dso_local dllexport void @"?externalFunc@ns@@YAXXZ"()
 316 // GNU-DAG: define dso_local dllexport void @_ZN2ns12externalFuncEv()
 317 namespace ns { __declspec(dllexport) void externalFunc() {} }
 318
 319
 320
 321 //===----------------------------------------------------------------------===//
 322 // Function templates
 323 //===----------------------------------------------------------------------===//
 324
 325 // Export function template definition.
 326 // MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplDef@UExplicitInst_Exported@@@@YAXXZ"()
 327 // GNU-DAG: define weak_odr dso_local dllexport void @_Z11funcTmplDefI21ExplicitInst_ExportedEvv()
 328 template<typename T> __declspec(dllexport) void funcTmplDef() {}
 329 INST(funcTmplDef<ExplicitInst_Exported>)
 330
 331 // Export inline function template.
 332 // MSC-DAG: define weak_odr dso_local dllexport void @"??$inlineFuncTmpl1@UExplicitInst_Exported@@@@YAXXZ"()
 333 // GNU-DAG: define weak_odr dso_local dllexport void @_Z15inlineFuncTmpl1I21ExplicitInst_ExportedEvv()
 334 template<typename T> __declspec(dllexport) inline void inlineFuncTmpl1() {}
 335 INST(inlineFuncTmpl1<ExplicitInst_Exported>)
 336
 337 // MSC-DAG: define weak_odr dso_local dllexport void @"??$inlineFuncTmpl2@UExplicitInst_Exported@@@@YAXXZ"()
 338 // GNU-DAG: define weak_odr dso_local dllexport void @_Z15inlineFuncTmpl2I21ExplicitInst_ExportedEvv()
 339 template<typename T> inline void __attribute__((dllexport)) inlineFuncTmpl2() {}
 340 INST(inlineFuncTmpl2<ExplicitInst_Exported>)
 341
 342 // MSC-DAG: define weak_odr dso_local dllexport void @"??$inlineFuncTmplDecl@UExplicitInst_Exported@@@@YAXXZ"()
 343 // GNU-DAG: define weak_odr dso_local dllexport void @_Z18inlineFuncTmplDeclI21ExplicitInst_ExportedEvv()
 344 template<typename T> __declspec(dllexport) inline void inlineFuncTmplDecl();
 345 template<typename T>                              void inlineFuncTmplDecl() {}
 346 INST(inlineFuncTmplDecl<ExplicitInst_Exported>)
 347
 348 // MSC-DAG: define weak_odr dso_local dllexport void @"??$inlineFuncTmplDef@UExplicitInst_Exported@@@@YAXXZ"()
 349 // GNU-DAG: define weak_odr dso_local dllexport void @_Z17inlineFuncTmplDefI21ExplicitInst_ExportedEvv()
 350 template<typename T> __declspec(dllexport) void inlineFuncTmplDef();
 351 template<typename T>                inline void inlineFuncTmplDef() {}
 352 INST(inlineFuncTmplDef<ExplicitInst_Exported>)
 353
 354
 355 // Redeclarations
 356 // MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplRedecl1@UExplicitInst_Exported@@@@YAXXZ"()
 357 // GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplRedecl1I21ExplicitInst_ExportedEvv()
 358 template<typename T> __declspec(dllexport) void funcTmplRedecl1();
 359 template<typename T> __declspec(dllexport) void funcTmplRedecl1() {}
 360 INST(funcTmplRedecl1<ExplicitInst_Exported>)
 361
 362 // MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplRedecl2@UExplicitInst_Exported@@@@YAXXZ"()
 363 // GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplRedecl2I21ExplicitInst_ExportedEvv()
 364 template<typename T> __declspec(dllexport) void funcTmplRedecl2();
 365 template<typename T>                       void funcTmplRedecl2() {}
 366 INST(funcTmplRedecl2<ExplicitInst_Exported>)
 367
 368 // MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplRedecl3@UExplicitInst_Exported@@@@YAXXZ"()
 369 // GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplRedecl3I21ExplicitInst_ExportedEvv()
 370 template<typename T> __declspec(dllexport) void funcTmplRedecl3();
 371 template<typename T>                       void funcTmplRedecl3() {}
 372 INST(funcTmplRedecl3<ExplicitInst_Exported>)
 373
 374
 375 // Function template friends
 376 // MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplFriend1@UExplicitInst_Exported@@@@YAXXZ"()
 377 // GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplFriend1I21ExplicitInst_ExportedEvv()
 378 // MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplFriend2@UExplicitInst_Exported@@@@YAXXZ"()
 379 // GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplFriend2I21ExplicitInst_ExportedEvv()
 380 struct FuncTmplFriend {
 381   template<typename T> friend __declspec(dllexport) void funcTmplFriend1();
 382   template<typename T> friend __declspec(dllexport) void funcTmplFriend2();
 383 };
 384 template<typename T> __declspec(dllexport) void funcTmplFriend1() {}
 385 template<typename T>                       void funcTmplFriend2() {}
 386 INST(funcTmplFriend1<ExplicitInst_Exported>)
 387 INST(funcTmplFriend2<ExplicitInst_Exported>)
 388
 389 // MSC-DAG: define weak_odr dso_local dllexport void @"??$externalFuncTmpl@UExplicitInst_Exported@@@ns@@YAXXZ"()
 390 // GNU-DAG: define weak_odr dso_local dllexport void @_ZN2ns16externalFuncTmplI21ExplicitInst_ExportedEEvv()
 391 namespace ns { template<typename T> __declspec(dllexport) void externalFuncTmpl() {} }
 392 INST(ns::externalFuncTmpl<ExplicitInst_Exported>)
 393
 394
 395 template<typename T> void funcTmpl() {}
 396 template<typename T> __declspec(dllexport) void exportedFuncTmpl() {}
 397
 398 // Export implicit instantiation of an exported function template.
 399 // MSC-DAG: define weak_odr dso_local dllexport void @"??$exportedFuncTmpl@UImplicitInst_Exported@@@@YAXXZ"()
 400 // GNU-DAG: define weak_odr dso_local dllexport void @_Z16exportedFuncTmplI21ImplicitInst_ExportedEvv()
 401 USE(exportedFuncTmpl<ImplicitInst_Exported>)
 402
 403 // Export explicit instantiation declaration of an exported function template.
 404 // MSC-DAG: define weak_odr dso_local dllexport void @"??$exportedFuncTmpl@UExplicitDecl_Exported@@@@YAXXZ"()
 405 // GNU-DAG: define weak_odr dso_local dllexport void @_Z16exportedFuncTmplI21ExplicitDecl_ExportedEvv()
 406 extern template void exportedFuncTmpl<ExplicitDecl_Exported>();
 407        template void exportedFuncTmpl<ExplicitDecl_Exported>();
 408
 409 // Export explicit instantiation definition of an exported function template.
 410 // MSC-DAG: define weak_odr dso_local dllexport void @"??$exportedFuncTmpl@UExplicitInst_Exported@@@@YAXXZ"()
 411 // GNU-DAG: define weak_odr dso_local dllexport void @_Z16exportedFuncTmplI21ExplicitInst_ExportedEvv()
 412 template void exportedFuncTmpl<ExplicitInst_Exported>();
 413
 414 // Export specialization of an exported function template.
 415 // MSC-DAG: define dso_local dllexport void @"??$exportedFuncTmpl@UExplicitSpec_Def_Exported@@@@YAXXZ"()
 416 // GNU-DAG: define dso_local dllexport void @_Z16exportedFuncTmplI25ExplicitSpec_Def_ExportedEvv()
 417 template<> __declspec(dllexport) void exportedFuncTmpl<ExplicitSpec_Def_Exported>() {}
 418
 419 // MSC-DAG: define weak_odr dso_local dllexport void @"??$exportedFuncTmpl@UExplicitSpec_InlineDef_Exported@@@@YAXXZ"()
 420 // GNU-DAG: define weak_odr dso_local dllexport void @_Z16exportedFuncTmplI31ExplicitSpec_InlineDef_ExportedEvv()
 421 template<> __declspec(dllexport) inline void exportedFuncTmpl<ExplicitSpec_InlineDef_Exported>() {}
 422
 423 // Not exporting specialization of an exported function template without
 424 // explicit dllexport.
 425 // MSC-DAG: define dso_local void @"??$exportedFuncTmpl@UExplicitSpec_NotExported@@@@YAXXZ"()
 426 // GNU-DAG: define dso_local void @_Z16exportedFuncTmplI24ExplicitSpec_NotExportedEvv()
 427 template<> void exportedFuncTmpl<ExplicitSpec_NotExported>() {}
 428
 429
 430 // Export explicit instantiation declaration of a non-exported function template.
 431 // MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmpl@UExplicitDecl_Exported@@@@YAXXZ"()
 432 // GNU-DAG: define weak_odr dso_local dllexport void @_Z8funcTmplI21ExplicitDecl_ExportedEvv()
 433 extern template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>();
 434        template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>();
 435
 436 // Export explicit instantiation definition of a non-exported function template.
 437 // MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmpl@UExplicitInst_Exported@@@@YAXXZ"()
 438 // GNU-DAG: define weak_odr dso_local dllexport void @_Z8funcTmplI21ExplicitInst_ExportedEvv()
 439 template __declspec(dllexport) void funcTmpl<ExplicitInst_Exported>();
 440
 441 // Export specialization of a non-exported function template.
 442 // MSC-DAG: define dso_local dllexport void @"??$funcTmpl@UExplicitSpec_Def_Exported@@@@YAXXZ"()
 443 // GNU-DAG: define dso_local dllexport void @_Z8funcTmplI25ExplicitSpec_Def_ExportedEvv()
 444 template<> __declspec(dllexport) void funcTmpl<ExplicitSpec_Def_Exported>() {}
 445
 446 // MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmpl@UExplicitSpec_InlineDef_Exported@@@@YAXXZ"()
 447 // GNU-DAG: define weak_odr dso_local dllexport void @_Z8funcTmplI31ExplicitSpec_InlineDef_ExportedEvv()
 448 template<> __declspec(dllexport) inline void funcTmpl<ExplicitSpec_InlineDef_Exported>() {}
 449
 450
 451
 452 //===----------------------------------------------------------------------===//
 453 // Precedence
 454 //===----------------------------------------------------------------------===//
 455
 456 // dllexport takes precedence over the dllimport if both are specified.
 457 // MSC-DAG: @"?PrecedenceGlobal1A@@3HA" = dso_local dllexport global i32 0, align 4
 458 // MSC-DAG: @"?PrecedenceGlobal1B@@3HA" = dso_local dllexport global i32 0, align 4
 459 // GNU-DAG: @PrecedenceGlobal1A            = dso_local dllexport global i32 0, align 4
 460 // GNU-DAG: @PrecedenceGlobal1B            = dso_local dllexport global i32 0, align 4
 461 __attribute__((dllimport, dllexport))       int PrecedenceGlobal1A; // dllimport ignored
 462 __declspec(dllimport) __declspec(dllexport) int PrecedenceGlobal1B; // dllimport ignored
 463
 464 // MSC-DAG: @"?PrecedenceGlobal2A@@3HA" = dso_local dllexport global i32 0, align 4
 465 // MSC-DAG: @"?PrecedenceGlobal2B@@3HA" = dso_local dllexport global i32 0, align 4
 466 // GNU-DAG: @PrecedenceGlobal2A            = dso_local dllexport global i32 0, align 4
 467 // GNU-DAG: @PrecedenceGlobal2B            = dso_local dllexport global i32 0, align 4
 468 __attribute__((dllexport, dllimport))       int PrecedenceGlobal2A; // dllimport ignored
 469 __declspec(dllexport) __declspec(dllimport) int PrecedenceGlobal2B; // dllimport ignored
 470
 471 // MSC-DAG: @"?PrecedenceGlobalRedecl1@@3HA" = dso_local dllexport global i32 0, align 4
 472 // GNU-DAG: @PrecedenceGlobalRedecl1            = dso_local dllexport global i32 0, align 4
 473 __declspec(dllexport) extern int PrecedenceGlobalRedecl1;
 474 __declspec(dllimport)        int PrecedenceGlobalRedecl1 = 0;
 475
 476 // MSC-DAG: @"?PrecedenceGlobalRedecl2@@3HA" = dso_local dllexport global i32 0, align 4
 477 // GNU-DAG: @PrecedenceGlobalRedecl2            = dso_local dllexport global i32 0, align 4
 478 __declspec(dllimport) extern int PrecedenceGlobalRedecl2;
 479 __declspec(dllexport)        int PrecedenceGlobalRedecl2;
 480
 481 // MSC-DAG: @"?PrecedenceGlobalMixed1@@3HA" = dso_local dllexport global i32 0, align 4
 482 // GNU-DAG: @PrecedenceGlobalMixed1            = dso_local dllexport global i32 0, align 4
 483 __attribute__((dllexport)) extern int PrecedenceGlobalMixed1;
 484 __declspec(dllimport)             int PrecedenceGlobalMixed1 = 0;
 485
 486 // MSC-DAG: @"?PrecedenceGlobalMixed2@@3HA" = dso_local dllexport global i32 0, align 4
 487 // GNU-DAG: @PrecedenceGlobalMixed2            = dso_local dllexport global i32 0, align 4
 488 __attribute__((dllimport)) extern int PrecedenceGlobalMixed2;
 489 __declspec(dllexport)             int PrecedenceGlobalMixed2;
 490
 491 // MSC-DAG: define dso_local dllexport void @"?precedence1A@@YAXXZ"
 492 // MSC-DAG: define dso_local dllexport void @"?precedence1B@@YAXXZ"
 493 // GNU-DAG: define dso_local dllexport void @_Z12precedence1Av()
 494 // GNU-DAG: define dso_local dllexport void @_Z12precedence1Bv()
 495 void __attribute__((dllimport, dllexport))       precedence1A() {}
 496 void __declspec(dllimport) __declspec(dllexport) precedence1B() {}
 497
 498 // MSC-DAG: define dso_local dllexport void @"?precedence2A@@YAXXZ"
 499 // MSC-DAG: define dso_local dllexport void @"?precedence2B@@YAXXZ"
 500 // GNU-DAG: define dso_local dllexport void @_Z12precedence2Av()
 501 // GNU-DAG: define dso_local dllexport void @_Z12precedence2Bv()
 502 void __attribute__((dllexport, dllimport))       precedence2A() {}
 503 void __declspec(dllexport) __declspec(dllimport) precedence2B() {}
 504
 505 // MSC-DAG: define dso_local dllexport void @"?precedenceRedecl1@@YAXXZ"
 506 // GNU-DAG: define dso_local dllexport void @_Z17precedenceRedecl1v()
 507 void __declspec(dllimport) precedenceRedecl1();
 508 void __declspec(dllexport) precedenceRedecl1() {}
 509
 510 // MSC-DAG: define dso_local dllexport void @"?precedenceRedecl2@@YAXXZ"
 511 // GNU-DAG: define dso_local dllexport void @_Z17precedenceRedecl2v()
 512 void __declspec(dllexport) precedenceRedecl2();
 513 void __declspec(dllimport) precedenceRedecl2() {}
 514
 515
 516
 517 //===----------------------------------------------------------------------===//
 518 // Classes
 519 //===----------------------------------------------------------------------===//
 520
 521 struct S {
 522   void __declspec(dllexport) a() {}
 523   // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?a@S@@QAEXXZ"
 524
 525   struct T {
 526     void __declspec(dllexport) a() {}
 527     // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?a@T@S@@QAEXXZ"
 528   };
 529 };
 530
 531 template <typename T>
 532 struct SomeTemplate {
 533   SomeTemplate(T o = T()) : o(o) {}
 534   T o;
 535 };
 536 // MSVC2015-DAG: define weak_odr dso_local dllexport {{.+}} @"??4?$SomeTemplate@H@@Q{{.+}}@$$Q{{.+}}@@Z"
 537 // MSVC2013-DAG: define weak_odr dso_local dllexport {{.+}} @"??4?$SomeTemplate@H@@Q{{.+}}0@A{{.+}}0@@Z"
 538 struct __declspec(dllexport) InheritFromTemplate : SomeTemplate<int> {};
 539
 540 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??_F?$SomeTemplate@H@@QAEXXZ"({{.*}}) {{#[0-9]+}} comdat
 541
 542 namespace PR23801 {
 543 template <typename>
 544 struct S {
 545   ~S() {}
 546 };
 547 struct A {
 548   A(int);
 549   S<int> s;
 550 };
 551 struct __declspec(dllexport) B {
 552   B(A = 0) {}
 553 };
 554
 555 }
 556 //
 557 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??_FB@PR23801@@QAEXXZ"({{.*}}) {{#[0-9]+}} comdat
 558
 559 struct __declspec(dllexport) T {
 560   // Copy assignment operator:
 561   // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) ptr @"??4T@@QAEAAU0@ABU0@@Z"
 562
 563   // Explicitly defaulted copy constructur:
 564   T(const T&) = default;
 565   // M32MSVC2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0T@@QAE@ABU0@@Z"
 566
 567   void a() {}
 568   // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?a@T@@QAEXXZ"
 569
 570   static int b;
 571   // M32-DAG: @"?b@T@@2HA" = external dso_local global i32
 572
 573   static int c;
 574   // M32-DAG: @"?c@T@@2HA" = dso_local dllexport global i32 0, align 4
 575 };
 576
 577 USEVAR(T::b)
 578 int T::c;
 579
 580 // Export template class with static member variable
 581 // MSC-DAG: @"?StaticClassVarExpTmplClass@?$TmplClass@H@@2HA" = weak_odr dso_local dllexport global i32 0, comdat, align 4
 582 // GNU-DAG: @_ZN9TmplClassIiE26StaticClassVarExpTmplClassE = weak_odr dso_local dllexport global i32 0, comdat, align 4
 583 template<typename T>
 584 struct __declspec(dllexport) TmplClass
 585 {
 586   static T StaticClassVarExpTmplClass;
 587 };
 588
 589 template<typename T>
 590 T TmplClass<T>::StaticClassVarExpTmplClass;
 591
 592 // Export a definition of a template function.
 593 // MSC-DAG: define weak_odr dso_local dllexport i32 @"??$TypeFunTmpl@H@@YAHH@Z"
 594 // GNU-DAG: define weak_odr dso_local dllexport i32 @_Z11TypeFunTmplIiET_S0_
 595 template<typename T>
 596 T __declspec(dllexport) TypeFunTmpl(T t) { return t + t; }
 597
 598 // Instantiate the exported template class and the exported template function.
 599 int useExportedTmplStaticAndFun()
 600 {
 601   return TmplClass<int>::StaticClassVarExpTmplClass + TypeFunTmpl<int>(10);
 602 }
 603
 604 template <typename T> struct __declspec(dllexport) U { void foo() {} };
 605 struct __declspec(dllexport) V : public U<int> { };
 606 // U<int>'s assignment operator is emitted.
 607 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) ptr @"??4?$U@H@@QAEAAU0@ABU0@@Z"
 608
 609 struct __declspec(dllexport) W { virtual void foo(); };
 610 void W::foo() {}
 611 // Default ctor:
 612 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0W@@QAE@XZ"
 613 // Copy ctor:
 614 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0W@@QAE@ABU0@@Z"
 615 // vftable:
 616 // M32-DAG: [[W_VTABLE:@.*]] = private unnamed_addr constant { [2 x ptr] } { [2 x ptr] [ptr @"??_R4W@@6B@", ptr @"?foo@W@@UAEXXZ"] }, comdat($"??_7W@@6B@")
 617 // M32-DAG: @"??_7W@@6B@" = dllexport unnamed_addr alias ptr, getelementptr inbounds ({ [2 x ptr] }, ptr [[W_VTABLE]], i32 0, i32 0, i32 1)
 618 // G32-DAG: @_ZTV1W = dso_local dllexport unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null, ptr @_ZTI1W, ptr @_ZN1W3fooEv] }
 619
 620 struct __declspec(dllexport) X : public virtual W {};
 621 // vbtable:
 622 // M32-DAG: @"??_8X@@7B@" = weak_odr dllexport unnamed_addr constant [2 x i32] [i32 0, i32 4]
 623
 624 struct __declspec(dllexport) Y {
 625   // Move assignment operator:
 626   // MSVC2015-DAG: define weak_odr dso_local dllexport {{.+}} @"??4Y@@Q{{.+}}@$$Q{{.+}}@@Z"
 627   // MSVC2013-DAG: define weak_odr dso_local dllexport {{.+}} @"??4Y@@Q{{.+}}0@A{{.+}}0@@Z"
 628
 629   int x;
 630 };
 631
 632 struct __declspec(dllexport) Z { virtual ~Z() {} };
 633 // The scalar deleting dtor does not get exported:
 634 // M32-DAG: define linkonce_odr dso_local x86_thiscallcc ptr @"??_GZ@@UAEPAXI@Z"
 635
 636
 637 // The user-defined dtor does get exported:
 638 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??1Z@@UAE@XZ"
 639
 640 namespace UseDtorAlias {
 641   struct __declspec(dllexport) A { ~A(); };
 642   struct __declspec(dllexport) B : A { ~B(); };
 643   A::~A() { }
 644   B::~B() { }
 645   // Emit a alias definition of B's constructor.
 646   // M32-DAG: @"??1B@UseDtorAlias@@QAE@XZ" = dso_local dllexport unnamed_addr alias {{.*}} @"??1A@UseDtorAlias@@QAE@XZ"
 647 }
 648
 649 struct __declspec(dllexport) DefaultedCtorsDtors {
 650   DefaultedCtorsDtors() = default;
 651   // M32MSVC2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0DefaultedCtorsDtors@@QAE@XZ"
 652   ~DefaultedCtorsDtors() = default;
 653   // M32MSVC2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??1DefaultedCtorsDtors@@QAE@XZ"
 654 };
 655
 656 // Export defaulted member function definitions declared inside class.
 657 struct __declspec(dllexport) ExportDefaultedInclassDefs {
 658   ExportDefaultedInclassDefs() = default;
 659   // M32VS2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0ExportDefaultedInclassDefs@@QAE@XZ"(ptr returned %this)
 660   // M64VS2013-DAG: define weak_odr dso_local dllexport                ptr @"??0ExportDefaultedInclassDefs@@QEAA@XZ"(ptr returned %this)
 661   // M32VS2015-NOT: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0ExportDefaultedInclassDefs@@QAE@XZ"(ptr returned %this)
 662   // M64VS2015-NOT: define weak_odr dso_local dllexport                ptr @"??0ExportDefaultedInclassDefs@@QEAA@XZ"(ptr returned %this)
 663
 664   ~ExportDefaultedInclassDefs() = default;
 665   // M32VS2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??1ExportDefaultedInclassDefs@@QAE@XZ"(ptr %this)
 666   // M64VS2013-DAG: define weak_odr dso_local dllexport                void @"??1ExportDefaultedInclassDefs@@QEAA@XZ"(ptr %this)
 667   // M32VS2015-NOT: define weak_odr dso_local dllexport x86_thiscallcc void @"??1ExportDefaultedInclassDefs@@QAE@XZ"(ptr %this)
 668   // M64VS2015-NOT: define weak_odr dso_local dllexport                void @"??1ExportDefaultedInclassDefs@@QEAA@XZ"(ptr %this)
 669
 670   ExportDefaultedInclassDefs(const ExportDefaultedInclassDefs&) = default;
 671   // 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]+}}))
 672   // M64VS2013-DAG: define weak_odr dso_local dllexport                ptr @"??0ExportDefaultedInclassDefs@@QEAA@AEBU0@@Z"(ptr {{[^,]*}} returned {{[^,]*}} %this, ptr nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}))
 673   // 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]+}}))
 674   // M64VS2015-NOT: define weak_odr dso_local dllexport                ptr @"??0ExportDefaultedInclassDefs@@QEAA@AEBU0@@Z"(ptr {{[^,]*}} returned {{[^,]*}} %this, ptr nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}))
 675
 676   ExportDefaultedInclassDefs& operator=(const ExportDefaultedInclassDefs&) = default;
 677   // 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)
 678   // 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)
 679 };
 680
 681 namespace ReferencedInlineMethodInNestedClass {
 682   struct __declspec(dllexport) S {
 683     void foo() {
 684       t->bar();
 685     }
 686     struct T {
 687       void bar() {}
 688     };
 689     T *t;
 690   };
 691   // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?foo@S@ReferencedInlineMethodInNestedClass@@QAEXXZ"
 692   // M32-DAG: define linkonce_odr dso_local x86_thiscallcc void @"?bar@T@S@ReferencedInlineMethodInNestedClass@@QAEXXZ"
 693 }
 694
 695 // MS ignores DLL attributes on partial specializations.
 696 template <typename T> struct PartiallySpecializedClassTemplate {};
 697 template <typename T> struct __declspec(dllexport) PartiallySpecializedClassTemplate<T*> { void f(); };
 698 template <typename T> void PartiallySpecializedClassTemplate<T*>::f() {}
 699 USEMEMFUNC(PartiallySpecializedClassTemplate<void*>, f);
 700 // M32-DAG: define linkonce_odr dso_local x86_thiscallcc void @"?f@?$PartiallySpecializedClassTemplate@PAX@@QAEXXZ"
 701 // G32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @_ZN33PartiallySpecializedClassTemplateIPvE1fEv
 702
 703 // Attributes on explicit specializations are honored.
 704 template <typename T> struct ExplicitlySpecializedClassTemplate {};
 705 template <> struct __declspec(dllexport) ExplicitlySpecializedClassTemplate<void*> { void f(); };
 706 void ExplicitlySpecializedClassTemplate<void*>::f() {}
 707 USEMEMFUNC(ExplicitlySpecializedClassTemplate<void*>, f);
 708 // M32-DAG: define dso_local dllexport x86_thiscallcc void @"?f@?$ExplicitlySpecializedClassTemplate@PAX@@QAEXXZ"
 709 // G32-DAG: define dso_local dllexport x86_thiscallcc void @_ZN34ExplicitlySpecializedClassTemplateIPvE1fEv
 710
 711 // MS inherits DLL attributes to partial specializations.
 712 template <typename T> struct __declspec(dllexport) PartiallySpecializedExportedClassTemplate {};
 713 template <typename T> struct PartiallySpecializedExportedClassTemplate<T*> { void f() {} };
 714 USEMEMFUNC(PartiallySpecializedExportedClassTemplate<void*>, f);
 715 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$PartiallySpecializedExportedClassTemplate@PAX@@QAEXXZ"
 716 // G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN41PartiallySpecializedExportedClassTemplateIPvE1fEv
 717
 718 // MS ignores DLL attributes on partial specializations; inheritance still works though.
 719 template <typename T> struct __declspec(dllexport) PartiallySpecializedExportedClassTemplate2 {};
 720 template <typename T> struct __declspec(dllimport) PartiallySpecializedExportedClassTemplate2<T*> { void f(); };
 721 template <typename T> void PartiallySpecializedExportedClassTemplate2<T*>::f() {}
 722 USEMEMFUNC(PartiallySpecializedExportedClassTemplate2<void*>, f);
 723 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$PartiallySpecializedExportedClassTemplate2@PAX@@QAEXXZ"
 724 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN42PartiallySpecializedExportedClassTemplate2IPvE1fEv
 725
 726 // Attributes on the instantiation take precedence over attributes on the template.
 727 template <typename T> struct __declspec(dllimport) ExplicitlyInstantiatedWithDifferentAttr { void f() {} };
 728 template struct __declspec(dllexport) ExplicitlyInstantiatedWithDifferentAttr<int>;
 729 USEMEMFUNC(ExplicitlyInstantiatedWithDifferentAttr<int>, f);
 730 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ExplicitlyInstantiatedWithDifferentAttr@H@@QAEXXZ"
 731
 732 // Don't create weak dllexport aliases. (PR21373)
 733 struct NonExportedBaseClass {
 734   virtual ~NonExportedBaseClass();
 735 };
 736 NonExportedBaseClass::~NonExportedBaseClass() {}
 737
 738 struct __declspec(dllexport) ExportedDerivedClass : NonExportedBaseClass {};
 739 // M32-DAG: weak_odr dso_local dllexport x86_thiscallcc void @"??1ExportedDerivedClass@@UAE@XZ"
 740
 741 // Do not assert about generating code for constexpr functions twice during explicit instantiation (PR21718).
 742 template <typename T> struct ExplicitInstConstexprMembers {
 743   // Copy assignment operator
 744   // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align 1 dereferenceable(1) ptr @"??4?$ExplicitInstConstexprMembers@X@@QAEAAU0@ABU0@@Z"
 745
 746   constexpr ExplicitInstConstexprMembers() {}
 747   // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$ExplicitInstConstexprMembers@X@@QAE@XZ"
 748
 749   ExplicitInstConstexprMembers(const ExplicitInstConstexprMembers&) = default;
 750   // M32MSVC2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$ExplicitInstConstexprMembers@X@@QAE@ABU0@@Z"
 751
 752   constexpr int f() const { return 42; }
 753   // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc i32 @"?f@?$ExplicitInstConstexprMembers@X@@QBEHXZ"
 754 };
 755 template struct __declspec(dllexport) ExplicitInstConstexprMembers<void>;
 756
 757 template <typename T> struct ExplicitInstantiationDeclTemplate { void f() {} };
 758 extern template struct __declspec(dllexport) ExplicitInstantiationDeclTemplate<int>;
 759 USEMEMFUNC(ExplicitInstantiationDeclTemplate<int>, f);
 760 // M32-DAG: {{declare|define available_externally}} dso_local x86_thiscallcc void @"?f@?$ExplicitInstantiationDeclTemplate@H@@QAEXXZ"
 761
 762 template <typename T> struct __declspec(dllexport) ExplicitInstantiationDeclExportedTemplate { void f() {} };
 763 extern template struct ExplicitInstantiationDeclExportedTemplate<int>;
 764 USEMEMFUNC(ExplicitInstantiationDeclExportedTemplate<int>, f);
 765 // M32-DAG: {{declare|define available_externally}} dso_local x86_thiscallcc void @"?f@?$ExplicitInstantiationDeclExportedTemplate@H@@QAEXXZ"
 766
 767 template <typename T> struct ExplicitInstantiationDeclExportedDefTemplate { void f() {} ExplicitInstantiationDeclExportedDefTemplate() {} };
 768 extern template struct ExplicitInstantiationDeclExportedDefTemplate<int>;
 769 template struct __declspec(dllexport) ExplicitInstantiationDeclExportedDefTemplate<int>;
 770 USEMEMFUNC(ExplicitInstantiationDeclExportedDefTemplate<int>, f);
 771 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ExplicitInstantiationDeclExportedDefTemplate@H@@QAEXXZ"
 772 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$ExplicitInstantiationDeclExportedDefTemplate@H@@QAE@XZ"
 773 // G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN44ExplicitInstantiationDeclExportedDefTemplateIiE1fEv
 774
 775 template <typename T> struct ImplicitInstantiationExportedExplicitInstantiationDefTemplate { virtual void f() {} };
 776 ImplicitInstantiationExportedExplicitInstantiationDefTemplate<int> ImplicitInstantiationExportedExplicitInstantiationDefTemplateInstance;
 777 template struct __declspec(dllexport) ImplicitInstantiationExportedExplicitInstantiationDefTemplate<int>;
 778 USEMEMFUNC(ImplicitInstantiationExportedExplicitInstantiationDefTemplate<int>, f);
 779 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ImplicitInstantiationExportedExplicitInstantiationDefTemplate@H@@UAEXXZ"
 780 // G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN61ImplicitInstantiationExportedExplicitInstantiationDefTemplateIiE1fEv
 781
 782 template <typename T> struct __declspec(dllexport) ImplicitInstantiationExplicitInstantiationDefExportedTemplate { virtual void f() {} };
 783 ImplicitInstantiationExplicitInstantiationDefExportedTemplate<int> ImplicitInstantiationExplicitInstantiationDefExportedTemplateInstance;
 784 template struct ImplicitInstantiationExplicitInstantiationDefExportedTemplate<int>;
 785 USEMEMFUNC(ImplicitInstantiationExplicitInstantiationDefExportedTemplate<int>, f);
 786 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ImplicitInstantiationExplicitInstantiationDefExportedTemplate@H@@UAEXXZ"
 787 // G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN61ImplicitInstantiationExplicitInstantiationDefExportedTemplateIiE1fEv
 788
 789 template <typename T> struct __declspec(dllexport) ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate { virtual void f() {} };
 790 ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate<int> ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplateInstance;
 791 template struct __declspec(dllexport) ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate<int>;
 792 USEMEMFUNC(ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate<int>, f);
 793 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate@H@@UAEXXZ"
 794 // G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN69ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplateIiE1fEv
 795
 796 namespace { struct InternalLinkageType {}; }
 797 struct __declspec(dllexport) PR23308 {
 798   void f(InternalLinkageType*);
 799 };
 800 void PR23308::f(InternalLinkageType*) {}
 801 long use(PR23308* p) { p->f(nullptr); }
 802 // M32-DAG: define internal x86_thiscallcc void @"?f@PR23308@@QAEXPAUInternalLinkageType@?A0x{{[^@]*}}@@@Z"
 803
 804 template <typename T> struct PR23770BaseTemplate { void f() {} };
 805 template <typename T> struct PR23770DerivedTemplate : PR23770BaseTemplate<int> {};
 806 extern template struct PR23770DerivedTemplate<int>;
 807 template struct __declspec(dllexport) PR23770DerivedTemplate<int>;
 808 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$PR23770BaseTemplate@H@@QAEXXZ"
 809
 810 namespace InClassInits {
 811
 812 struct __declspec(dllexport) S {
 813   int x = 42;
 814 };
 815 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0S@InClassInits@@QAE@XZ"
 816
 817 // dllexport an already instantiated class template.
 818 template <typename T> struct Base {
 819   int x = 42;
 820 };
 821 Base<int> base;
 822 struct __declspec(dllexport) T : Base<int> { };
 823 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$Base@H@InClassInits@@QAE@XZ"
 824
 825 struct A { A(int); };
 826 struct __declspec(dllexport) U {
 827   // Class with both default constructor closure and in-class initializer.
 828   U(A = 0) {}
 829   int x = 0;
 830 };
 831 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0U@InClassInits@@QAE@UA@1@@Z"
 832
 833 struct Evil {
 834   template <typename T> struct Base {
 835     int x = 0;
 836   };
 837   struct S : Base<int> {};
 838   // The already instantiated Base<int> becomes dllexported below, but the
 839   // in-class initializer for Base<>::x still hasn't been parsed, so emitting
 840   // the default ctor must still be delayed.
 841   struct __declspec(dllexport) T : Base<int> {};
 842 };
 843 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$Base@H@Evil@InClassInits@@QAE@XZ"
 844
 845 template <typename T> struct Foo {};
 846 template <typename T> struct Bar {
 847   Bar<T> &operator=(Foo<T>) {}
 848 };
 849 struct __declspec(dllexport) Baz {
 850   Bar<int> n;
 851 };
 852 // After parsing Baz, in ActOnFinishCXXNonNestedClass we would synthesize
 853 // Baz's operator=, causing instantiation of Foo<int> after which
 854 // ActOnFinishCXXNonNestedClass is called, and we would bite our own tail.
 855 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align 1 dereferenceable(1) ptr @"??4Baz@InClassInits@@QAEAAU01@ABU01@@Z"
 856
 857 // Trying to define the explicitly defaulted ctor must be delayed until the
 858 // in-class initializer for x has been processed.
 859 struct PR40006 {
 860   __declspec(dllexport) PR40006() = default;
 861   int x = 42;
 862 };
 863 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0PR40006@InClassInits@@QAE@XZ"
 864
 865 namespace pr40006 {
 866 // Delay emitting the method also past the instantiation of Tmpl<Inner>, i.e.
 867 // until the top-level class Outer is completely finished.
 868 template<typename> struct Tmpl {};
 869 struct Outer {
 870     struct Inner {
 871         __declspec(dllexport) Inner() = default;
 872         unsigned int x = 0;
 873     };
 874     Tmpl<Inner> y;
 875 };
 876 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0Inner@Outer@pr40006@InClassInits@@QAE@XZ"
 877 }
 878
 879 // PR42857: Clang would try to emit the non-trivial explicitly defaulted
 880 // dllexport ctor twice when doing an explicit instantiation definition.
 881 struct Qux { Qux(); };
 882 template <typename T> struct PR42857 { __declspec(dllexport) PR42857() = default; Qux q; };
 883 template struct PR42857<int>;
 884 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$PR42857@H@InClassInits@@QAE@XZ"
 885
 886 }
 887
 888 // We had an issue where instantiating A would force emission of B's delayed
 889 // exported methods.
 890 namespace pr26490 {
 891 template <typename T> struct A { };
 892 struct __declspec(dllexport) B {
 893   B(int = 0) {}
 894   A<int> m_fn1() {}
 895 };
 896 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??_FB@pr26490@@QAEXXZ"
 897 }
 898
 899 // dllexport trumps dllimport on an explicit instantiation.
 900 template <typename T> struct ExplicitInstantiationTwoAttributes { void f() {} };
 901 template struct __declspec(dllexport) __declspec(dllimport) ExplicitInstantiationTwoAttributes<int>;
 902 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ExplicitInstantiationTwoAttributes@H@@QAEXXZ"
 903
 904 namespace pr34849 {
 905 // Specializations of exported class template member functions get exported.
 906 template <typename> struct __declspec(dllexport) ExportedClassTemplate { void foo(); };
 907 template<> void ExportedClassTemplate<int>::foo() {}
 908 template struct ExportedClassTemplate<int>;
 909 // M32-DAG: define dso_local dllexport x86_thiscallcc void @"?foo@?$ExportedClassTemplate@H@pr34849@@QAEXXZ"
 910
 911 // Specializations of exported class member template functions do not get exported.
 912 struct __declspec(dllexport) ExportedClass { template <typename> void bar() ; };
 913 template<> void ExportedClass::bar<int>() {}
 914 // M32-DAG: define dso_local x86_thiscallcc void @"??$bar@H@ExportedClass@pr34849@@QAEXXZ"
 915 template <typename> struct __declspec(dllexport) ExportedClassTemplate2 { template <typename> void baz(); };
 916 template<> template<> void ExportedClassTemplate2<int>::baz<int>() {}
 917 // M32-DAG: define dso_local x86_thiscallcc void @"??$baz@H@?$ExportedClassTemplate2@H@pr34849@@QAEXXZ"
 918 }
 919
 920 namespace pr47683 {
 921 struct X { X() {} };
 922
 923 template <typename> struct S {
 924   S() = default;
 925   X x;
 926 };
 927 template struct __declspec(dllexport) S<int>;
 928 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$S@H@pr47683@@QAE@XZ"
 929
 930 template <typename> struct T {
 931   T() = default;
 932   X x;
 933 };
 934 extern template struct T<int>;
 935 template struct __declspec(dllexport) T<int>;
 936 // Don't assert about multiple codegen for explicitly defaulted method in explicit instantiation def.
 937 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$T@H@pr47683@@QAE@XZ"
 938
 939 template <typename> struct U {
 940   U();
 941   X x;
 942 };
 943 template <typename T> U<T>::U() = default;
 944 extern template struct U<int>;
 945 template struct __declspec(dllexport) U<int>;
 946 // Same as T, but with out-of-line ctor.
 947 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0?$U@H@pr47683@@QAE@XZ"
 948 }
 949
 950 //===----------------------------------------------------------------------===//
 951 // Classes with template base classes
 952 //===----------------------------------------------------------------------===//
 953
 954 template <typename T> struct ClassTemplate { void func(); };
 955 template <typename T> void ClassTemplate<T>::func() {}
 956 template <typename T> struct __declspec(dllexport) ExportedClassTemplate { void func(); };
 957 template <typename T> void ExportedClassTemplate<T>::func() {}
 958 template <typename T> struct __declspec(dllimport) ImportedClassTemplate { void func(); };
 959 template <typename T> void ImportedClassTemplate<T>::func() {}
 960
 961 template <typename T> struct ExplicitlySpecializedTemplate { void func() {} };
 962 template <> struct ExplicitlySpecializedTemplate<int> { void func(); };
 963 void ExplicitlySpecializedTemplate<int>::func() {}
 964 template <typename T> struct ExplicitlyExportSpecializedTemplate { void func() {} };
 965 template <> struct __declspec(dllexport) ExplicitlyExportSpecializedTemplate<int> { void func(); };
 966 void ExplicitlyExportSpecializedTemplate<int>::func() {}
 967 template <typename T> struct ExplicitlyImportSpecializedTemplate { void func(); };
 968 template <> struct __declspec(dllimport) ExplicitlyImportSpecializedTemplate<int> { void func(); };
 969
 970 template <typename T> struct ExplicitlyInstantiatedTemplate { void func(); };
 971 template <typename T> void ExplicitlyInstantiatedTemplate<T>::func() {}
 972 template struct ExplicitlyInstantiatedTemplate<int>;
 973 template <typename T> struct ExplicitlyExportInstantiatedTemplate { void func(); };
 974 template <typename T> void ExplicitlyExportInstantiatedTemplate<T>::func() {}
 975 template struct __declspec(dllexport) ExplicitlyExportInstantiatedTemplate<int>;
 976 template <typename T> struct ExplicitlyImportInstantiatedTemplate { void func(); };
 977 template struct __declspec(dllimport) ExplicitlyImportInstantiatedTemplate<int>;
 978
 979
 980 // MS: ClassTemplate<int> gets exported.
 981 struct __declspec(dllexport) DerivedFromTemplate : public ClassTemplate<int> {};
 982 USEMEMFUNC(DerivedFromTemplate, func)
 983 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ClassTemplate@H@@QAEXXZ"
 984 // G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN13ClassTemplateIiE4funcEv
 985 // PS-DAG:  define weak_odr dllexport void @_ZN13ClassTemplateIiE4funcEv
 986
 987 // ExportedTemplate is explicitly exported.
 988 struct __declspec(dllexport) DerivedFromExportedTemplate : public ExportedClassTemplate<int> {};
 989 USEMEMFUNC(DerivedFromExportedTemplate, func)
 990 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ExportedClassTemplate@H@@QAEXXZ"
 991 // G32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @_ZN21ExportedClassTemplateIiE4funcEv
 992 // PS-DAG:  define weak_odr dllexport void @_ZN21ExportedClassTemplateIiE4funcEv
 993
 994 // ImportedClassTemplate is explicitly imported.
 995 struct __declspec(dllexport) DerivedFromImportedTemplate : public ImportedClassTemplate<int> {};
 996 USEMEMFUNC(DerivedFromImportedTemplate, func)
 997 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"?func@?$ImportedClassTemplate@H@@QAEXXZ"
 998 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN21ImportedClassTemplateIiE4funcEv
 999 // PS-DAG:  declare dllimport void @_ZN21ImportedClassTemplateIiE4funcEv
1000
1001 // Base class already implicitly instantiated without dll attribute.
1002 struct DerivedFromTemplateD : public ClassTemplate<double> {};
1003 struct __declspec(dllexport) DerivedFromTemplateD2 : public ClassTemplate<double> {};
1004 USEMEMFUNC(DerivedFromTemplateD2, func)
1005 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ClassTemplate@N@@QAEXXZ"
1006 // G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN13ClassTemplateIdE4funcEv
1007 // PS-DAG:  define weak_odr dllexport void @_ZN13ClassTemplateIdE4funcEv
1008
1009 // MS: Base class already instantiated with different dll attribute.
1010 struct __declspec(dllimport) DerivedFromTemplateB : public ClassTemplate<bool> {};
1011 struct __declspec(dllexport) DerivedFromTemplateB2 : public ClassTemplate<bool> {};
1012 USEMEMFUNC(DerivedFromTemplateB2, func)
1013 // M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"?func@?$ClassTemplate@_N@@QAEXXZ"
1014 // G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN13ClassTemplateIbE4funcEv
1015 // PS-DAG:  declare dllimport void @_ZN13ClassTemplateIbE4funcEv
1016
1017 // Base class already specialized without dll attribute.
1018 struct __declspec(dllexport) DerivedFromExplicitlySpecializedTemplate : public ExplicitlySpecializedTemplate<int> {};
1019 USEMEMFUNC(DerivedFromExplicitlySpecializedTemplate, func)
1020 // M32-DAG: define dso_local x86_thiscallcc void @"?func@?$ExplicitlySpecializedTemplate@H@@QAEXXZ"
1021 // G32-DAG: define dso_local x86_thiscallcc void @_ZN29ExplicitlySpecializedTemplateIiE4funcEv
1022 // PS-DAG:  define dso_local void @_ZN29ExplicitlySpecializedTemplateIiE4funcEv
1023
1024 // Base class alredy specialized with export attribute.
1025 struct __declspec(dllexport) DerivedFromExplicitlyExportSpecializedTemplate : public ExplicitlyExportSpecializedTemplate<int> {};
1026 USEMEMFUNC(DerivedFromExplicitlyExportSpecializedTemplate, func)
1027 // M32-DAG: define dso_local dllexport x86_thiscallcc void @"?func@?$ExplicitlyExportSpecializedTemplate@H@@QAEXXZ"
1028 // G32-DAG: define dso_local dllexport x86_thiscallcc void @_ZN35ExplicitlyExportSpecializedTemplateIiE4funcEv
1029 // PS-DAG:  define dso_local dllexport void @_ZN35ExplicitlyExportSpecializedTemplateIiE4funcEv
1030
1031 // Base class already specialized with import attribute.
1032 struct __declspec(dllexport) DerivedFromExplicitlyImportSpecializedTemplate : public ExplicitlyImportSpecializedTemplate<int> {};
1033 USEMEMFUNC(DerivedFromExplicitlyImportSpecializedTemplate, func)
1034 // M32-DAG: declare dllimport x86_thiscallcc void @"?func@?$ExplicitlyImportSpecializedTemplate@H@@QAEXXZ"
1035 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN35ExplicitlyImportSpecializedTemplateIiE4funcEv
1036 // PS-DAG:  declare dllimport void @_ZN35ExplicitlyImportSpecializedTemplateIiE4funcEv
1037
1038 // Base class already instantiated without dll attribute.
1039 struct __declspec(dllexport) DerivedFromExplicitlyInstantiatedTemplate : public ExplicitlyInstantiatedTemplate<int> {};
1040 USEMEMFUNC(DerivedFromExplicitlyInstantiatedTemplate, func)
1041 // M32-DAG: define weak_odr dso_local x86_thiscallcc void @"?func@?$ExplicitlyInstantiatedTemplate@H@@QAEXXZ"
1042 // G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN30ExplicitlyInstantiatedTemplateIiE4funcEv
1043 // PS-DAG:  define weak_odr void @_ZN30ExplicitlyInstantiatedTemplateIiE4funcEv
1044
1045 // Base class already instantiated with export attribute.
1046 struct __declspec(dllexport) DerivedFromExplicitlyExportInstantiatedTemplate : public ExplicitlyExportInstantiatedTemplate<int> {};
1047 USEMEMFUNC(DerivedFromExplicitlyExportInstantiatedTemplate, func)
1048 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ExplicitlyExportInstantiatedTemplate@H@@QAEXXZ"
1049 // G32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @_ZN36ExplicitlyExportInstantiatedTemplateIiE4funcEv
1050 // PS-DAG:  define weak_odr dllexport void @_ZN36ExplicitlyExportInstantiatedTemplateIiE4funcEv
1051
1052 // Base class already instantiated with import attribute.
1053 struct __declspec(dllexport) DerivedFromExplicitlyImportInstantiatedTemplate : public ExplicitlyImportInstantiatedTemplate<int> {};
1054 USEMEMFUNC(DerivedFromExplicitlyImportInstantiatedTemplate, func)
1055 // M32-DAG: declare dllimport x86_thiscallcc void @"?func@?$ExplicitlyImportInstantiatedTemplate@H@@QAEXXZ"
1056 // G32-DAG: declare dllimport x86_thiscallcc void @_ZN36ExplicitlyImportInstantiatedTemplateIiE4funcEv
1057 // PS-DAG:  declare dllimport void @_ZN36ExplicitlyImportInstantiatedTemplateIiE4funcEv
1058
1059 // MS: A dll attribute propagates through multiple levels of instantiation.
1060 template <typename T> struct TopClass { void func() {} };
1061 template <typename T> struct MiddleClass : public TopClass<T> { };
1062 struct __declspec(dllexport) BottomClass : public MiddleClass<int> { };
1063 USEMEMFUNC(BottomClass, func)
1064 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$TopClass@H@@QAEXXZ"
1065 // G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN8TopClassIiE4funcEv
1066 // PS-DAG:  define weak_odr dllexport void @_ZN8TopClassIiE4funcEv
1067
1068 template <typename T> struct ExplicitInstantiationDeclTemplateBase { void func() {} };
1069 extern template struct ExplicitInstantiationDeclTemplateBase<int>;
1070 struct __declspec(dllexport) DerivedFromExplicitInstantiationDeclTemplateBase : public ExplicitInstantiationDeclTemplateBase<int> {};
1071 template struct ExplicitInstantiationDeclTemplateBase<int>;
1072 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ExplicitInstantiationDeclTemplateBase@H@@QAEXXZ"
1073 // G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN37ExplicitInstantiationDeclTemplateBaseIiE4funcEv
1074 // PS-DAG:  define weak_odr dllexport void @_ZN37ExplicitInstantiationDeclTemplateBaseIiE4funcEv
1075
1076 // PR26076
1077 struct LayerSelectionBound;
1078 template <typename> struct Selection {};
1079 typedef Selection<LayerSelectionBound> LayerSelection;
1080 struct LayerImpl;
1081 struct __declspec(dllexport) LayerTreeImpl {
1082   struct __declspec(dllexport) ElementLayers {
1083     LayerImpl *main = nullptr;
1084   };
1085   LayerSelection foo;
1086 };
1087 // M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc ptr @"??0ElementLayers@LayerTreeImpl@@QAE@XZ"
1088 // M64-DAG: define weak_odr dso_local dllexport ptr @"??0ElementLayers@LayerTreeImpl@@QEAA@XZ"
1089
1090 namespace pr39496 {
1091 // Make sure dll attribute are inherited by static locals also in template
1092 // specializations.
1093 template <typename> struct __declspec(dllexport) S { int foo() { static int x; return x++; } };
1094 int foo() { S<int> s; return s.foo(); }
1095 // MSC-DAG: @"?x@?{{1|2}}??foo@?$S@H@pr39496@@Q{{[A-Z]*}}HXZ@4HA" = weak_odr dso_local dllexport global i32 0, comdat, align 4
1096
1097 template <typename> struct T { int foo() { static int x; return x++; } };
1098 template struct __declspec(dllexport) T<int>;
1099 // MSC-DAG: @"?x@?{{1|2}}??foo@?$T@H@pr39496@@Q{{[A-Z]*}}HXZ@4HA" = weak_odr dso_local dllexport global i32 0, comdat, align 4
1100 }
1101
1102 class __declspec(dllexport) ACE_Shared_Object {
1103 public:
1104   virtual ~ACE_Shared_Object();
1105 };
1106 class __declspec(dllexport) ACE_Service_Object : public ACE_Shared_Object {};
1107 // Implicit move constructor declaration.
1108 // MSVC2015-DAG: define weak_odr dso_local dllexport {{.+}}ACE_Service_Object@@Q{{.+}}@$$Q
1109 // The declarations should not be exported.
1110 // MSVC2013-NOT: define weak_odr dso_local dllexport {{.+}}ACE_Service_Object@@Q{{.+}}@$$Q