llvm-project/clang/test/CodeGenCXX/dllexport.cpp

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// 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
// 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
// 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
// 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
// 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
// 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
// Helper structs to make templates more expressive.
struct ImplicitInst_Exported {};
struct ExplicitDecl_Exported {};
struct ExplicitInst_Exported {};
struct ExplicitSpec_Exported {};
struct ExplicitSpec_Def_Exported {};
struct ExplicitSpec_InlineDef_Exported {};
struct ExplicitSpec_NotExported {};
struct External { int v; };
#define JOIN2(x, y) x##y
#define JOIN(x, y) JOIN2(x, y)
#define UNIQ(name) JOIN(name, __LINE__)
#define USEVAR(var) int UNIQ(use)() { return var; }
#define USE(func) void UNIQ(use)() { func(); }
#define USEMEMFUNC(class, func) void (class::*UNIQ(use)())() { return &class::func; }
#define INSTVAR(var) template int var;
#define INST(func) template void func();
// The vftable for struct W is comdat largest because we have RTTI.
// M32-DAG: $"??_7W@@6B@" = comdat largest
// M32-DAG: $"?smember@?$Base@H@PR32992@@0HA" = comdat any
//===----------------------------------------------------------------------===//
// Globals
//===----------------------------------------------------------------------===//
// Declarations are not exported.
// MSC-NOT: @"?ExternGlobalDecl@@3HA"
// GNU-NOT: @ExternGlobalDecl
__declspec(dllexport) extern int ExternGlobalDecl;
// M64-DAG: @__ImageBase = external dso_local constant i8
// GNU-DAG: @_ZTVN10__cxxabiv117__class_type_infoE = external global
// dllexport implies a definition.
// MSC-DAG: @"?GlobalDef@@3HA" = dso_local dllexport global i32 0, align 4
// GNU-DAG: @GlobalDef = dso_local dllexport global i32 0, align 4
__declspec(dllexport) int GlobalDef;
// Export definition.
// MSC-DAG: @"?GlobalInit1@@3HA" = dso_local dllexport global i32 1, align 4
// GNU-DAG: @GlobalInit1 = dso_local dllexport global i32 1, align 4
__declspec(dllexport) int GlobalInit1 = 1;
// MSC-DAG: @"?GlobalInit2@@3HA" = dso_local dllexport global i32 1, align 4
// GNU-DAG: @GlobalInit2 = dso_local dllexport global i32 1, align 4
int __declspec(dllexport) GlobalInit2 = 1;
// Declare, then export definition.
// MSC-DAG: @"?GlobalDeclInit@@3HA" = dso_local dllexport global i32 1, align 4
// GNU-DAG: @GlobalDeclInit = dso_local dllexport global i32 1, align 4
__declspec(dllexport) extern int GlobalDeclInit;
int GlobalDeclInit = 1;
// Redeclarations
// MSC-DAG: @"?GlobalRedecl1@@3HA" = dso_local dllexport global i32 0, align 4
// GNU-DAG: @GlobalRedecl1 = dso_local dllexport global i32 0, align 4
__declspec(dllexport) extern int GlobalRedecl1;
__declspec(dllexport) int GlobalRedecl1;
// MSC-DAG: @"?GlobalRedecl2@@3HA" = dso_local dllexport global i32 0, align 4
// GNU-DAG: @GlobalRedecl2 = dso_local dllexport global i32 0, align 4
__declspec(dllexport) extern int GlobalRedecl2;
int GlobalRedecl2;
// MSC-DAG: @"?ExternalGlobal@ns@@3HA" = dso_local dllexport global i32 0, align 4
// GNU-DAG: @_ZN2ns14ExternalGlobalE = dso_local dllexport global i32 0, align 4
namespace ns { __declspec(dllexport) int ExternalGlobal; }
// MSC-DAG: @"?ExternalAutoTypeGlobal@@3UExternal@@A" = dso_local dllexport global %struct.External zeroinitializer, align 4
// GNU-DAG: @ExternalAutoTypeGlobal = dso_local dllexport global %struct.External zeroinitializer, align 4
__declspec(dllexport) auto ExternalAutoTypeGlobal = External();
int f();
// MSC-DAG: @"?x@?1??nonInlineStaticLocalsFunc@@YAHXZ@4HA" = internal {{(unnamed_addr )*}}global i32 0
// MSC-DAG: @"?$S1@?1??nonInlineStaticLocalsFunc@@YAHXZ@4IA" = internal {{(unnamed_addr )*}}global i32 0
int __declspec(dllexport) nonInlineStaticLocalsFunc() {
static int x = f();
return x++;
};
// MSC-DAG: @"?x@?1??inlineStaticLocalsFunc@@YAHXZ@4HA" = weak_odr dso_local dllexport global i32 0, comdat
// MSC-DAG: @"??_B?1??inlineStaticLocalsFunc@@YAHXZ@51" = weak_odr dllexport global i32 0, comdat
// Note: MinGW doesn't seem to export the static local here.
inline int __declspec(dllexport) inlineStaticLocalsFunc() {
static int x = f();
return x++;
}
namespace PR32992 {
// Static data members of a instantiated base class should be exported.
template <class T>
class Base {
virtual void myfunc() {}
static int smember;
};
// MSC-DAG: @"?smember@?$Base@H@PR32992@@0HA" = weak_odr dso_local dllexport global i32 77, comdat, align 4
template <class T> int Base<T>::smember = 77;
template <class T>
class __declspec(dllexport) Derived2 : Base<T> {
void myfunc() {}
};
class Derived : public Derived2<int> {
void myfunc() {}
};
} // namespace PR32992
namespace PR32992_1 {
namespace a { enum b { c }; }
template <typename> class d {
static constexpr a::b e = a::c;
};
namespace f {
template <typename g = int> class h : d<g> {};
}
using f::h;
class __declspec(dllexport) i : h<> {};
}
//===----------------------------------------------------------------------===//
// Variable templates
//===----------------------------------------------------------------------===//
// Declarations are not exported.
// MSC-DAG: @"??$VarTmplImplicitDef@UImplicitInst_Exported@@@@3HA" = external dso_local global
// GNU-DAG: @_Z18VarTmplImplicitDefI21ImplicitInst_ExportedE = external global
template<typename T> __declspec(dllexport) extern int VarTmplImplicitDef;
USEVAR(VarTmplImplicitDef<ImplicitInst_Exported>)
// Export definition.
// MSC-DAG: @"??$VarTmplInit1@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
// GNU-DAG: @_Z12VarTmplInit1I21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4
template<typename T> __declspec(dllexport) int VarTmplInit1 = 1;
INSTVAR(VarTmplInit1<ExplicitInst_Exported>)
// MSC-DAG: @"??$VarTmplInit2@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
// GNU-DAG: @_Z12VarTmplInit2I21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4
template<typename T> int __declspec(dllexport) VarTmplInit2 = 1;
INSTVAR(VarTmplInit2<ExplicitInst_Exported>)
// Declare, then export definition.
// MSC-DAG: @"??$VarTmplDeclInit@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
// GNU-DAG: @_Z15VarTmplDeclInitI21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4
template<typename T> __declspec(dllexport) extern int VarTmplDeclInit;
template<typename T> int VarTmplDeclInit = 1;
INSTVAR(VarTmplDeclInit<ExplicitInst_Exported>)
// Redeclarations
// MSC-DAG: @"??$VarTmplRedecl1@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
// GNU-DAG: @_Z14VarTmplRedecl1I21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4
template<typename T> __declspec(dllexport) extern int VarTmplRedecl1;
template<typename T> __declspec(dllexport) int VarTmplRedecl1 = 1;
INSTVAR(VarTmplRedecl1<ExplicitInst_Exported>)
// MSC-DAG: @"??$VarTmplRedecl2@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
// GNU-DAG: @_Z14VarTmplRedecl2I21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4
template<typename T> __declspec(dllexport) extern int VarTmplRedecl2;
template<typename T> int VarTmplRedecl2 = 1;
INSTVAR(VarTmplRedecl2<ExplicitInst_Exported>)
// MSC-DAG: @"??$ExternalVarTmpl@UExplicitInst_Exported@@@ns@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
// GNU-DAG: @_ZN2ns15ExternalVarTmplI21ExplicitInst_ExportedEE = weak_odr dso_local dllexport global i32 1, comdat, align 4
namespace ns { template<typename T> __declspec(dllexport) int ExternalVarTmpl = 1; }
INSTVAR(ns::ExternalVarTmpl<ExplicitInst_Exported>)
// MSC-DAG: @"??$ExternalAutoTypeVarTmpl@UExplicitInst_Exported@@@@3UExternal@@A" = weak_odr dso_local dllexport global %struct.External zeroinitializer, comdat, align 4
// GNU-DAG: @_Z23ExternalAutoTypeVarTmplI21ExplicitInst_ExportedE = weak_odr dso_local dllexport global %struct.External zeroinitializer, comdat, align 4
template<typename T> __declspec(dllexport) auto ExternalAutoTypeVarTmpl = External();
template External ExternalAutoTypeVarTmpl<ExplicitInst_Exported>;
template<typename T> int VarTmpl = 1;
template<typename T> __declspec(dllexport) int ExportedVarTmpl = 1;
// Export implicit instantiation of an exported variable template.
// MSC-DAG: @"??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
// GNU-DAG: @_Z15ExportedVarTmplI21ImplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4
USEVAR(ExportedVarTmpl<ImplicitInst_Exported>)
// Export explicit instantiation declaration of an exported variable template.
// MSC-DAG: @"??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
// GNU-DAG: @_Z15ExportedVarTmplI21ExplicitDecl_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4
extern template int ExportedVarTmpl<ExplicitDecl_Exported>;
template int ExportedVarTmpl<ExplicitDecl_Exported>;
// Export explicit instantiation definition of an exported variable template.
// MSC-DAG: @"??$ExportedVarTmpl@UImplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
// GNU-DAG: @_Z15ExportedVarTmplI21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4
template __declspec(dllexport) int ExportedVarTmpl<ExplicitInst_Exported>;
// Export specialization of an exported variable template.
// MSC-DAG: @"??$ExportedVarTmpl@UExplicitSpec_Exported@@@@3HA" = dso_local dllexport global i32 0, align 4
// GNU-DAG: @_Z15ExportedVarTmplI21ExplicitSpec_ExportedE = dso_local dllexport global i32 0, align 4
template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Exported>;
// MSC-DAG: @"??$ExportedVarTmpl@UExplicitSpec_Def_Exported@@@@3HA" = dso_local dllexport global i32 1, align 4
// GNU-DAG: @_Z15ExportedVarTmplI25ExplicitSpec_Def_ExportedE = dso_local dllexport global i32 1, align 4
template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Def_Exported> = 1;
// Not exporting specialization of an exported variable template without
// explicit dllexport.
// MSC-DAG: @"??$ExportedVarTmpl@UExplicitSpec_NotExported@@@@3HA" = dso_local global i32 0, align 4
// GNU-DAG: @_Z15ExportedVarTmplI24ExplicitSpec_NotExportedE = dso_local global i32 0, align 4
template<> int ExportedVarTmpl<ExplicitSpec_NotExported>;
// Export explicit instantiation declaration of a non-exported variable template.
// MSC-DAG: @"??$VarTmpl@UExplicitDecl_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
// GNU-DAG: @_Z7VarTmplI21ExplicitDecl_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4
extern template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>;
template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>;
// Export explicit instantiation definition of a non-exported variable template.
// MSC-DAG: @"??$VarTmpl@UExplicitInst_Exported@@@@3HA" = weak_odr dso_local dllexport global i32 1, comdat, align 4
// GNU-DAG: @_Z7VarTmplI21ExplicitInst_ExportedE = weak_odr dso_local dllexport global i32 1, comdat, align 4
template __declspec(dllexport) int VarTmpl<ExplicitInst_Exported>;
// Export specialization of a non-exported variable template.
// MSC-DAG: @"??$VarTmpl@UExplicitSpec_Exported@@@@3HA" = dso_local dllexport global i32 0, align 4
// GNU-DAG: @_Z7VarTmplI21ExplicitSpec_ExportedE = dso_local dllexport global i32 0, align 4
template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Exported>;
// MSC-DAG: @"??$VarTmpl@UExplicitSpec_Def_Exported@@@@3HA" = dso_local dllexport global i32 1, align 4
// GNU-DAG: @_Z7VarTmplI25ExplicitSpec_Def_ExportedE = dso_local dllexport global i32 1, align 4
template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Def_Exported> = 1;
//===----------------------------------------------------------------------===//
// Functions
//===----------------------------------------------------------------------===//
// Declarations are not exported.
// Export function definition.
// MSC-DAG: define dso_local dllexport void @"?def@@YAXXZ"()
// GNU-DAG: define dso_local dllexport void @_Z3defv()
__declspec(dllexport) void def() {}
// extern "C"
// MSC-DAG: define dso_local dllexport void @externC()
// GNU-DAG: define dso_local dllexport void @externC()
extern "C" __declspec(dllexport) void externC() {}
// Export inline function.
// MSC-DAG: define weak_odr dso_local dllexport void @"?inlineFunc@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z10inlineFuncv()
__declspec(dllexport) inline void inlineFunc() {}
// MSC-DAG: define weak_odr dso_local dllexport void @"?inlineDecl@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z10inlineDeclv()
__declspec(dllexport) inline void inlineDecl();
void inlineDecl() {}
// MSC-DAG: define weak_odr dso_local dllexport void @"?inlineDef@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z9inlineDefv()
__declspec(dllexport) void inlineDef();
inline void inlineDef() {}
// Redeclarations
// MSC-DAG: define dso_local dllexport void @"?redecl1@@YAXXZ"()
// GNU-DAG: define dso_local dllexport void @_Z7redecl1v()
__declspec(dllexport) void redecl1();
__declspec(dllexport) void redecl1() {}
// MSC-DAG: define dso_local dllexport void @"?redecl2@@YAXXZ"()
// GNU-DAG: define dso_local dllexport void @_Z7redecl2v()
__declspec(dllexport) void redecl2();
void redecl2() {}
// Friend functions
// MSC-DAG: define dso_local dllexport void @"?friend1@@YAXXZ"()
// GNU-DAG: define dso_local dllexport void @_Z7friend1v()
// MSC-DAG: define dso_local dllexport void @"?friend2@@YAXXZ"()
// GNU-DAG: define dso_local dllexport void @_Z7friend2v()
struct FuncFriend {
friend __declspec(dllexport) void friend1();
friend __declspec(dllexport) void friend2();
};
__declspec(dllexport) void friend1() {}
void friend2() {}
// MSC-DAG: define dso_local dllexport void @"?func@Befriended@@SAXXZ"()
// GNU-DAG: define dso_local dllexport void @_ZN10Befriended4funcEv()
struct __declspec(dllexport) Befriended {
static void func();
struct Befriending {
friend void Befriended::func();
};
};
void Befriended::func() {}
// Implicit declarations can be redeclared with dllexport.
[clang] Annotating C++'s `operator new` with more attributes Summary: Right now we annotate C++'s `operator new` with `noalias` attribute, which very much is healthy for optimizations. However as per [[ http://eel.is/c++draft/basic.stc.dynamic.allocation | `[basic.stc.dynamic.allocation]` ]], there are more promises on global `operator new`, namely: * non-`std::nothrow_t` `operator new` *never* returns `nullptr` * If `std::align_val_t align` parameter is taken, the pointer will also be `align`-aligned * ~~global `operator new`-returned pointer is `__STDCPP_DEFAULT_NEW_ALIGNMENT__`-aligned ~~ It's more caveated than that. Supplying this information may not cause immediate landslide effects on any specific benchmarks, but it for sure will be healthy for optimizer in the sense that the IR will better reflect the guarantees provided in the source code. The caveat is `-fno-assume-sane-operator-new`, which currently prevents emitting `noalias` attribute, and is automatically passed by Sanitizers ([[ https://bugs.llvm.org/show_bug.cgi?id=16386 | PR16386 ]]) - should it also cover these attributes? The problem is that the flag is back-end-specific, as seen in `test/Modules/explicit-build-flags.cpp`. But while it is okay to add `noalias` metadata in backend, we really should be adding at least the alignment metadata to the AST, since that allows us to perform sema checks on it. Reviewers: erichkeane, rjmccall, jdoerfert, eugenis, rsmith Reviewed By: rsmith Subscribers: xbolva00, jrtc27, atanasyan, nlopes, cfe-commits Tags: #llvm, #clang Differential Revision: https://reviews.llvm.org/D73380
2020-02-26 06:37:17 +08:00
// MSC-DAG: define dso_local dllexport nonnull i8* @"??2@{{YAPAXI|YAPEAX_K}}@Z"(
// GNU-DAG: define dso_local dllexport nonnull i8* @_Znw{{[yj]}}(
void* alloc(__SIZE_TYPE__ n);
__declspec(dllexport) void* operator new(__SIZE_TYPE__ n) { return alloc(n); }
// MSC-DAG: define dso_local dllexport void @"?externalFunc@ns@@YAXXZ"()
// GNU-DAG: define dso_local dllexport void @_ZN2ns12externalFuncEv()
namespace ns { __declspec(dllexport) void externalFunc() {} }
//===----------------------------------------------------------------------===//
// Function templates
//===----------------------------------------------------------------------===//
// Export function template definition.
// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplDef@UExplicitInst_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z11funcTmplDefI21ExplicitInst_ExportedEvv()
template<typename T> __declspec(dllexport) void funcTmplDef() {}
INST(funcTmplDef<ExplicitInst_Exported>)
// Export inline function template.
// MSC-DAG: define weak_odr dso_local dllexport void @"??$inlineFuncTmpl1@UExplicitInst_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z15inlineFuncTmpl1I21ExplicitInst_ExportedEvv()
template<typename T> __declspec(dllexport) inline void inlineFuncTmpl1() {}
INST(inlineFuncTmpl1<ExplicitInst_Exported>)
// MSC-DAG: define weak_odr dso_local dllexport void @"??$inlineFuncTmpl2@UExplicitInst_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z15inlineFuncTmpl2I21ExplicitInst_ExportedEvv()
template<typename T> inline void __attribute__((dllexport)) inlineFuncTmpl2() {}
INST(inlineFuncTmpl2<ExplicitInst_Exported>)
// MSC-DAG: define weak_odr dso_local dllexport void @"??$inlineFuncTmplDecl@UExplicitInst_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z18inlineFuncTmplDeclI21ExplicitInst_ExportedEvv()
template<typename T> __declspec(dllexport) inline void inlineFuncTmplDecl();
template<typename T> void inlineFuncTmplDecl() {}
INST(inlineFuncTmplDecl<ExplicitInst_Exported>)
// MSC-DAG: define weak_odr dso_local dllexport void @"??$inlineFuncTmplDef@UExplicitInst_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z17inlineFuncTmplDefI21ExplicitInst_ExportedEvv()
template<typename T> __declspec(dllexport) void inlineFuncTmplDef();
template<typename T> inline void inlineFuncTmplDef() {}
INST(inlineFuncTmplDef<ExplicitInst_Exported>)
// Redeclarations
// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplRedecl1@UExplicitInst_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplRedecl1I21ExplicitInst_ExportedEvv()
template<typename T> __declspec(dllexport) void funcTmplRedecl1();
template<typename T> __declspec(dllexport) void funcTmplRedecl1() {}
INST(funcTmplRedecl1<ExplicitInst_Exported>)
// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplRedecl2@UExplicitInst_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplRedecl2I21ExplicitInst_ExportedEvv()
template<typename T> __declspec(dllexport) void funcTmplRedecl2();
template<typename T> void funcTmplRedecl2() {}
INST(funcTmplRedecl2<ExplicitInst_Exported>)
// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplRedecl3@UExplicitInst_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplRedecl3I21ExplicitInst_ExportedEvv()
template<typename T> __declspec(dllexport) void funcTmplRedecl3();
template<typename T> void funcTmplRedecl3() {}
INST(funcTmplRedecl3<ExplicitInst_Exported>)
// Function template friends
// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplFriend1@UExplicitInst_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplFriend1I21ExplicitInst_ExportedEvv()
// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmplFriend2@UExplicitInst_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z15funcTmplFriend2I21ExplicitInst_ExportedEvv()
struct FuncTmplFriend {
template<typename T> friend __declspec(dllexport) void funcTmplFriend1();
template<typename T> friend __declspec(dllexport) void funcTmplFriend2();
};
template<typename T> __declspec(dllexport) void funcTmplFriend1() {}
template<typename T> void funcTmplFriend2() {}
INST(funcTmplFriend1<ExplicitInst_Exported>)
INST(funcTmplFriend2<ExplicitInst_Exported>)
// MSC-DAG: define weak_odr dso_local dllexport void @"??$externalFuncTmpl@UExplicitInst_Exported@@@ns@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_ZN2ns16externalFuncTmplI21ExplicitInst_ExportedEEvv()
namespace ns { template<typename T> __declspec(dllexport) void externalFuncTmpl() {} }
INST(ns::externalFuncTmpl<ExplicitInst_Exported>)
template<typename T> void funcTmpl() {}
template<typename T> __declspec(dllexport) void exportedFuncTmpl() {}
// Export implicit instantiation of an exported function template.
// MSC-DAG: define weak_odr dso_local dllexport void @"??$exportedFuncTmpl@UImplicitInst_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z16exportedFuncTmplI21ImplicitInst_ExportedEvv()
USE(exportedFuncTmpl<ImplicitInst_Exported>)
// Export explicit instantiation declaration of an exported function template.
// MSC-DAG: define weak_odr dso_local dllexport void @"??$exportedFuncTmpl@UExplicitDecl_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z16exportedFuncTmplI21ExplicitDecl_ExportedEvv()
extern template void exportedFuncTmpl<ExplicitDecl_Exported>();
template void exportedFuncTmpl<ExplicitDecl_Exported>();
// Export explicit instantiation definition of an exported function template.
// MSC-DAG: define weak_odr dso_local dllexport void @"??$exportedFuncTmpl@UExplicitInst_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z16exportedFuncTmplI21ExplicitInst_ExportedEvv()
template void exportedFuncTmpl<ExplicitInst_Exported>();
// Export specialization of an exported function template.
// MSC-DAG: define dso_local dllexport void @"??$exportedFuncTmpl@UExplicitSpec_Def_Exported@@@@YAXXZ"()
// GNU-DAG: define dso_local dllexport void @_Z16exportedFuncTmplI25ExplicitSpec_Def_ExportedEvv()
template<> __declspec(dllexport) void exportedFuncTmpl<ExplicitSpec_Def_Exported>() {}
// MSC-DAG: define weak_odr dso_local dllexport void @"??$exportedFuncTmpl@UExplicitSpec_InlineDef_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z16exportedFuncTmplI31ExplicitSpec_InlineDef_ExportedEvv()
template<> __declspec(dllexport) inline void exportedFuncTmpl<ExplicitSpec_InlineDef_Exported>() {}
// Not exporting specialization of an exported function template without
// explicit dllexport.
// MSC-DAG: define dso_local void @"??$exportedFuncTmpl@UExplicitSpec_NotExported@@@@YAXXZ"()
// GNU-DAG: define dso_local void @_Z16exportedFuncTmplI24ExplicitSpec_NotExportedEvv()
template<> void exportedFuncTmpl<ExplicitSpec_NotExported>() {}
// Export explicit instantiation declaration of a non-exported function template.
// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmpl@UExplicitDecl_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z8funcTmplI21ExplicitDecl_ExportedEvv()
extern template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>();
template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>();
// Export explicit instantiation definition of a non-exported function template.
// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmpl@UExplicitInst_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z8funcTmplI21ExplicitInst_ExportedEvv()
template __declspec(dllexport) void funcTmpl<ExplicitInst_Exported>();
// Export specialization of a non-exported function template.
// MSC-DAG: define dso_local dllexport void @"??$funcTmpl@UExplicitSpec_Def_Exported@@@@YAXXZ"()
// GNU-DAG: define dso_local dllexport void @_Z8funcTmplI25ExplicitSpec_Def_ExportedEvv()
template<> __declspec(dllexport) void funcTmpl<ExplicitSpec_Def_Exported>() {}
// MSC-DAG: define weak_odr dso_local dllexport void @"??$funcTmpl@UExplicitSpec_InlineDef_Exported@@@@YAXXZ"()
// GNU-DAG: define weak_odr dso_local dllexport void @_Z8funcTmplI31ExplicitSpec_InlineDef_ExportedEvv()
template<> __declspec(dllexport) inline void funcTmpl<ExplicitSpec_InlineDef_Exported>() {}
//===----------------------------------------------------------------------===//
// Precedence
//===----------------------------------------------------------------------===//
// dllexport takes precedence over the dllimport if both are specified.
// MSC-DAG: @"?PrecedenceGlobal1A@@3HA" = dso_local dllexport global i32 0, align 4
// MSC-DAG: @"?PrecedenceGlobal1B@@3HA" = dso_local dllexport global i32 0, align 4
// GNU-DAG: @PrecedenceGlobal1A = dso_local dllexport global i32 0, align 4
// GNU-DAG: @PrecedenceGlobal1B = dso_local dllexport global i32 0, align 4
__attribute__((dllimport, dllexport)) int PrecedenceGlobal1A; // dllimport ignored
__declspec(dllimport) __declspec(dllexport) int PrecedenceGlobal1B; // dllimport ignored
// MSC-DAG: @"?PrecedenceGlobal2A@@3HA" = dso_local dllexport global i32 0, align 4
// MSC-DAG: @"?PrecedenceGlobal2B@@3HA" = dso_local dllexport global i32 0, align 4
// GNU-DAG: @PrecedenceGlobal2A = dso_local dllexport global i32 0, align 4
// GNU-DAG: @PrecedenceGlobal2B = dso_local dllexport global i32 0, align 4
__attribute__((dllexport, dllimport)) int PrecedenceGlobal2A; // dllimport ignored
__declspec(dllexport) __declspec(dllimport) int PrecedenceGlobal2B; // dllimport ignored
// MSC-DAG: @"?PrecedenceGlobalRedecl1@@3HA" = dso_local dllexport global i32 0, align 4
// GNU-DAG: @PrecedenceGlobalRedecl1 = dso_local dllexport global i32 0, align 4
__declspec(dllexport) extern int PrecedenceGlobalRedecl1;
__declspec(dllimport) int PrecedenceGlobalRedecl1 = 0;
// MSC-DAG: @"?PrecedenceGlobalRedecl2@@3HA" = dso_local dllexport global i32 0, align 4
// GNU-DAG: @PrecedenceGlobalRedecl2 = dso_local dllexport global i32 0, align 4
__declspec(dllimport) extern int PrecedenceGlobalRedecl2;
__declspec(dllexport) int PrecedenceGlobalRedecl2;
// MSC-DAG: @"?PrecedenceGlobalMixed1@@3HA" = dso_local dllexport global i32 0, align 4
// GNU-DAG: @PrecedenceGlobalMixed1 = dso_local dllexport global i32 0, align 4
__attribute__((dllexport)) extern int PrecedenceGlobalMixed1;
__declspec(dllimport) int PrecedenceGlobalMixed1 = 0;
// MSC-DAG: @"?PrecedenceGlobalMixed2@@3HA" = dso_local dllexport global i32 0, align 4
// GNU-DAG: @PrecedenceGlobalMixed2 = dso_local dllexport global i32 0, align 4
__attribute__((dllimport)) extern int PrecedenceGlobalMixed2;
__declspec(dllexport) int PrecedenceGlobalMixed2;
// MSC-DAG: define dso_local dllexport void @"?precedence1A@@YAXXZ"
// MSC-DAG: define dso_local dllexport void @"?precedence1B@@YAXXZ"
// GNU-DAG: define dso_local dllexport void @_Z12precedence1Av()
// GNU-DAG: define dso_local dllexport void @_Z12precedence1Bv()
void __attribute__((dllimport, dllexport)) precedence1A() {}
void __declspec(dllimport) __declspec(dllexport) precedence1B() {}
// MSC-DAG: define dso_local dllexport void @"?precedence2A@@YAXXZ"
// MSC-DAG: define dso_local dllexport void @"?precedence2B@@YAXXZ"
// GNU-DAG: define dso_local dllexport void @_Z12precedence2Av()
// GNU-DAG: define dso_local dllexport void @_Z12precedence2Bv()
void __attribute__((dllexport, dllimport)) precedence2A() {}
void __declspec(dllexport) __declspec(dllimport) precedence2B() {}
// MSC-DAG: define dso_local dllexport void @"?precedenceRedecl1@@YAXXZ"
// GNU-DAG: define dso_local dllexport void @_Z17precedenceRedecl1v()
void __declspec(dllimport) precedenceRedecl1();
void __declspec(dllexport) precedenceRedecl1() {}
// MSC-DAG: define dso_local dllexport void @"?precedenceRedecl2@@YAXXZ"
// GNU-DAG: define dso_local dllexport void @_Z17precedenceRedecl2v()
void __declspec(dllexport) precedenceRedecl2();
void __declspec(dllimport) precedenceRedecl2() {}
//===----------------------------------------------------------------------===//
// Classes
//===----------------------------------------------------------------------===//
struct S {
void __declspec(dllexport) a() {}
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?a@S@@QAEXXZ"
struct T {
void __declspec(dllexport) a() {}
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?a@T@S@@QAEXXZ"
};
};
template <typename T>
struct SomeTemplate {
SomeTemplate(T o = T()) : o(o) {}
T o;
};
// MSVC2015-DAG: define weak_odr dso_local dllexport {{.+}} @"??4?$SomeTemplate@H@@Q{{.+}}@$$Q{{.+}}@@Z"
// MSVC2013-DAG: define weak_odr dso_local dllexport {{.+}} @"??4?$SomeTemplate@H@@Q{{.+}}0@A{{.+}}0@@Z"
struct __declspec(dllexport) InheritFromTemplate : SomeTemplate<int> {};
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??_F?$SomeTemplate@H@@QAEXXZ"({{.*}}) {{#[0-9]+}} comdat
namespace PR23801 {
template <typename>
struct S {
~S() {}
};
struct A {
A(int);
S<int> s;
};
struct __declspec(dllexport) B {
B(A = 0) {}
};
}
//
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??_FB@PR23801@@QAEXXZ"({{.*}}) {{#[0-9]+}} comdat
struct __declspec(dllexport) T {
// Copy assignment operator:
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %struct.T* @"??4T@@QAEAAU0@ABU0@@Z"
// Explicitly defaulted copy constructur:
T(const T&) = default;
// M32MSVC2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc %struct.T* @"??0T@@QAE@ABU0@@Z"
void a() {}
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?a@T@@QAEXXZ"
static int b;
// M32-DAG: @"?b@T@@2HA" = external dso_local global i32
static int c;
// M32-DAG: @"?c@T@@2HA" = dso_local dllexport global i32 0, align 4
};
USEVAR(T::b)
int T::c;
// Export template class with static member variable
// MSC-DAG: @"?StaticClassVarExpTmplClass@?$TmplClass@H@@2HA" = weak_odr dso_local dllexport global i32 0, comdat, align 4
// GNU-DAG: @_ZN9TmplClassIiE26StaticClassVarExpTmplClassE = weak_odr dso_local dllexport global i32 0, comdat, align 4
template<typename T>
struct __declspec(dllexport) TmplClass
{
static T StaticClassVarExpTmplClass;
};
template<typename T>
T TmplClass<T>::StaticClassVarExpTmplClass;
// Export a definition of a template function.
// MSC-DAG: define weak_odr dso_local dllexport i32 @"??$TypeFunTmpl@H@@YAHH@Z"
// GNU-DAG: define weak_odr dso_local dllexport i32 @_Z11TypeFunTmplIiET_S0_
template<typename T>
T __declspec(dllexport) TypeFunTmpl(T t) { return t + t; }
// Instantiate the exported template class and the exported template function.
int useExportedTmplStaticAndFun()
{
return TmplClass<int>::StaticClassVarExpTmplClass + TypeFunTmpl<int>(10);
}
template <typename T> struct __declspec(dllexport) U { void foo() {} };
struct __declspec(dllexport) V : public U<int> { };
// U<int>'s assignment operator is emitted.
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %struct.U* @"??4?$U@H@@QAEAAU0@ABU0@@Z"
struct __declspec(dllexport) W { virtual void foo(); };
void W::foo() {}
// Default ctor:
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %struct.W* @"??0W@@QAE@XZ"
// Copy ctor:
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %struct.W* @"??0W@@QAE@ABU0@@Z"
// vftable:
// M32-DAG: [[W_VTABLE:@.*]] = private unnamed_addr constant { [2 x i8*] } { [2 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"??_R4W@@6B@" to i8*), i8* bitcast (void (%struct.W*)* @"?foo@W@@UAEXXZ" to i8*)] }, comdat($"??_7W@@6B@")
// M32-DAG: @"??_7W@@6B@" = dllexport unnamed_addr alias i8*, getelementptr inbounds ({ [2 x i8*] }, { [2 x i8*] }* [[W_VTABLE]], i32 0, i32 0, i32 1)
// G32-DAG: @_ZTV1W = dso_local dllexport unnamed_addr constant { [3 x i8*] } { [3 x i8*] [i8* null, i8* bitcast ({ i8*, i8* }* @_ZTI1W to i8*), i8* bitcast (void (%struct.W*)* @_ZN1W3fooEv to i8*)] }
struct __declspec(dllexport) X : public virtual W {};
// vbtable:
// M32-DAG: @"??_8X@@7B@" = weak_odr dllexport unnamed_addr constant [2 x i32] [i32 0, i32 4]
struct __declspec(dllexport) Y {
// Move assignment operator:
// MSVC2015-DAG: define weak_odr dso_local dllexport {{.+}} @"??4Y@@Q{{.+}}@$$Q{{.+}}@@Z"
// MSVC2013-DAG: define weak_odr dso_local dllexport {{.+}} @"??4Y@@Q{{.+}}0@A{{.+}}0@@Z"
int x;
};
struct __declspec(dllexport) Z { virtual ~Z() {} };
// The scalar deleting dtor does not get exported:
// M32-DAG: define linkonce_odr dso_local x86_thiscallcc i8* @"??_GZ@@UAEPAXI@Z"
// The user-defined dtor does get exported:
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??1Z@@UAE@XZ"
namespace UseDtorAlias {
struct __declspec(dllexport) A { ~A(); };
struct __declspec(dllexport) B : A { ~B(); };
A::~A() { }
B::~B() { }
// Emit a alias definition of B's constructor.
// M32-DAG: @"??1B@UseDtorAlias@@QAE@XZ" = dso_local dllexport unnamed_addr alias {{.*}} @"??1A@UseDtorAlias@@QAE@XZ"
}
struct __declspec(dllexport) DefaultedCtorsDtors {
DefaultedCtorsDtors() = default;
// M32MSVC2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc %struct.DefaultedCtorsDtors* @"??0DefaultedCtorsDtors@@QAE@XZ"
~DefaultedCtorsDtors() = default;
// M32MSVC2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??1DefaultedCtorsDtors@@QAE@XZ"
};
// Export defaulted member function definitions declared inside class.
struct __declspec(dllexport) ExportDefaultedInclassDefs {
ExportDefaultedInclassDefs() = default;
// M32VS2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc %struct.ExportDefaultedInclassDefs* @"??0ExportDefaultedInclassDefs@@QAE@XZ"(%struct.ExportDefaultedInclassDefs* returned %this)
// M64VS2013-DAG: define weak_odr dso_local dllexport %struct.ExportDefaultedInclassDefs* @"??0ExportDefaultedInclassDefs@@QEAA@XZ"(%struct.ExportDefaultedInclassDefs* returned %this)
// M32VS2015-NOT: define weak_odr dso_local dllexport x86_thiscallcc %struct.ExportDefaultedInclassDefs* @"??0ExportDefaultedInclassDefs@@QAE@XZ"(%struct.ExportDefaultedInclassDefs* returned %this)
// M64VS2015-NOT: define weak_odr dso_local dllexport %struct.ExportDefaultedInclassDefs* @"??0ExportDefaultedInclassDefs@@QEAA@XZ"(%struct.ExportDefaultedInclassDefs* returned %this)
~ExportDefaultedInclassDefs() = default;
// M32VS2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??1ExportDefaultedInclassDefs@@QAE@XZ"(%struct.ExportDefaultedInclassDefs* %this)
// M64VS2013-DAG: define weak_odr dso_local dllexport void @"??1ExportDefaultedInclassDefs@@QEAA@XZ"(%struct.ExportDefaultedInclassDefs* %this)
// M32VS2015-NOT: define weak_odr dso_local dllexport x86_thiscallcc void @"??1ExportDefaultedInclassDefs@@QAE@XZ"(%struct.ExportDefaultedInclassDefs* %this)
// M64VS2015-NOT: define weak_odr dso_local dllexport void @"??1ExportDefaultedInclassDefs@@QEAA@XZ"(%struct.ExportDefaultedInclassDefs* %this)
ExportDefaultedInclassDefs(const ExportDefaultedInclassDefs&) = default;
// M32VS2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc %struct.ExportDefaultedInclassDefs* @"??0ExportDefaultedInclassDefs@@QAE@ABU0@@Z"(%struct.ExportDefaultedInclassDefs* {{[^,]*}} returned {{[^,]*}} %this, %struct.ExportDefaultedInclassDefs* nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}))
// M64VS2013-DAG: define weak_odr dso_local dllexport %struct.ExportDefaultedInclassDefs* @"??0ExportDefaultedInclassDefs@@QEAA@AEBU0@@Z"(%struct.ExportDefaultedInclassDefs* {{[^,]*}} returned {{[^,]*}} %this, %struct.ExportDefaultedInclassDefs* nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}))
// M32VS2015-NOT: define weak_odr dso_local dllexport x86_thiscallcc %struct.ExportDefaultedInclassDefs* @"??0ExportDefaultedInclassDefs@@QAE@ABU0@@Z"(%struct.ExportDefaultedInclassDefs* {{[^,]*}} returned {{[^,]*}} %this, %struct.ExportDefaultedInclassDefs* nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}))
// M64VS2015-NOT: define weak_odr dso_local dllexport %struct.ExportDefaultedInclassDefs* @"??0ExportDefaultedInclassDefs@@QEAA@AEBU0@@Z"(%struct.ExportDefaultedInclassDefs* {{[^,]*}} returned {{[^,]*}} %this, %struct.ExportDefaultedInclassDefs* nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}))
ExportDefaultedInclassDefs& operator=(const ExportDefaultedInclassDefs&) = default;
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %struct.ExportDefaultedInclassDefs* @"??4ExportDefaultedInclassDefs@@QAEAAU0@ABU0@@Z"(%struct.ExportDefaultedInclassDefs* {{[^,]*}} %this, %struct.ExportDefaultedInclassDefs* nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %0)
// M64-DAG: define weak_odr dso_local dllexport nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %struct.ExportDefaultedInclassDefs* @"??4ExportDefaultedInclassDefs@@QEAAAEAU0@AEBU0@@Z"(%struct.ExportDefaultedInclassDefs* {{[^,]*}} %this, %struct.ExportDefaultedInclassDefs* nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %0)
};
namespace ReferencedInlineMethodInNestedClass {
struct __declspec(dllexport) S {
void foo() {
t->bar();
}
struct T {
void bar() {}
};
T *t;
};
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?foo@S@ReferencedInlineMethodInNestedClass@@QAEXXZ"
// M32-DAG: define linkonce_odr dso_local x86_thiscallcc void @"?bar@T@S@ReferencedInlineMethodInNestedClass@@QAEXXZ"
}
// MS ignores DLL attributes on partial specializations.
template <typename T> struct PartiallySpecializedClassTemplate {};
template <typename T> struct __declspec(dllexport) PartiallySpecializedClassTemplate<T*> { void f(); };
template <typename T> void PartiallySpecializedClassTemplate<T*>::f() {}
USEMEMFUNC(PartiallySpecializedClassTemplate<void*>, f);
// M32-DAG: define linkonce_odr dso_local x86_thiscallcc void @"?f@?$PartiallySpecializedClassTemplate@PAX@@QAEXXZ"
// G32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @_ZN33PartiallySpecializedClassTemplateIPvE1fEv
// Attributes on explicit specializations are honored.
template <typename T> struct ExplicitlySpecializedClassTemplate {};
template <> struct __declspec(dllexport) ExplicitlySpecializedClassTemplate<void*> { void f(); };
void ExplicitlySpecializedClassTemplate<void*>::f() {}
USEMEMFUNC(ExplicitlySpecializedClassTemplate<void*>, f);
// M32-DAG: define dso_local dllexport x86_thiscallcc void @"?f@?$ExplicitlySpecializedClassTemplate@PAX@@QAEXXZ"
// G32-DAG: define dso_local dllexport x86_thiscallcc void @_ZN34ExplicitlySpecializedClassTemplateIPvE1fEv
// MS inherits DLL attributes to partial specializations.
template <typename T> struct __declspec(dllexport) PartiallySpecializedExportedClassTemplate {};
template <typename T> struct PartiallySpecializedExportedClassTemplate<T*> { void f() {} };
USEMEMFUNC(PartiallySpecializedExportedClassTemplate<void*>, f);
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$PartiallySpecializedExportedClassTemplate@PAX@@QAEXXZ"
// G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN41PartiallySpecializedExportedClassTemplateIPvE1fEv
// MS ignores DLL attributes on partial specializations; inheritance still works though.
template <typename T> struct __declspec(dllexport) PartiallySpecializedExportedClassTemplate2 {};
template <typename T> struct __declspec(dllimport) PartiallySpecializedExportedClassTemplate2<T*> { void f(); };
template <typename T> void PartiallySpecializedExportedClassTemplate2<T*>::f() {}
USEMEMFUNC(PartiallySpecializedExportedClassTemplate2<void*>, f);
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$PartiallySpecializedExportedClassTemplate2@PAX@@QAEXXZ"
// G32-DAG: declare dllimport x86_thiscallcc void @_ZN42PartiallySpecializedExportedClassTemplate2IPvE1fEv
// Attributes on the instantiation take precedence over attributes on the template.
template <typename T> struct __declspec(dllimport) ExplicitlyInstantiatedWithDifferentAttr { void f() {} };
template struct __declspec(dllexport) ExplicitlyInstantiatedWithDifferentAttr<int>;
USEMEMFUNC(ExplicitlyInstantiatedWithDifferentAttr<int>, f);
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ExplicitlyInstantiatedWithDifferentAttr@H@@QAEXXZ"
// Don't create weak dllexport aliases. (PR21373)
struct NonExportedBaseClass {
virtual ~NonExportedBaseClass();
};
NonExportedBaseClass::~NonExportedBaseClass() {}
struct __declspec(dllexport) ExportedDerivedClass : NonExportedBaseClass {};
// M32-DAG: weak_odr dso_local dllexport x86_thiscallcc void @"??1ExportedDerivedClass@@UAE@XZ"
// Do not assert about generating code for constexpr functions twice during explicit instantiation (PR21718).
template <typename T> struct ExplicitInstConstexprMembers {
// Copy assignment operator
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align 1 dereferenceable(1) %struct.ExplicitInstConstexprMembers* @"??4?$ExplicitInstConstexprMembers@X@@QAEAAU0@ABU0@@Z"
constexpr ExplicitInstConstexprMembers() {}
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %struct.ExplicitInstConstexprMembers* @"??0?$ExplicitInstConstexprMembers@X@@QAE@XZ"
ExplicitInstConstexprMembers(const ExplicitInstConstexprMembers&) = default;
// M32MSVC2013-DAG: define weak_odr dso_local dllexport x86_thiscallcc %struct.ExplicitInstConstexprMembers* @"??0?$ExplicitInstConstexprMembers@X@@QAE@ABU0@@Z"
constexpr int f() const { return 42; }
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc i32 @"?f@?$ExplicitInstConstexprMembers@X@@QBEHXZ"
};
template struct __declspec(dllexport) ExplicitInstConstexprMembers<void>;
template <typename T> struct ExplicitInstantiationDeclTemplate { void f() {} };
extern template struct __declspec(dllexport) ExplicitInstantiationDeclTemplate<int>;
USEMEMFUNC(ExplicitInstantiationDeclTemplate<int>, f);
// M32-DAG: {{declare|define available_externally}} dso_local x86_thiscallcc void @"?f@?$ExplicitInstantiationDeclTemplate@H@@QAEXXZ"
template <typename T> struct __declspec(dllexport) ExplicitInstantiationDeclExportedTemplate { void f() {} };
extern template struct ExplicitInstantiationDeclExportedTemplate<int>;
USEMEMFUNC(ExplicitInstantiationDeclExportedTemplate<int>, f);
// M32-DAG: {{declare|define available_externally}} dso_local x86_thiscallcc void @"?f@?$ExplicitInstantiationDeclExportedTemplate@H@@QAEXXZ"
template <typename T> struct ExplicitInstantiationDeclExportedDefTemplate { void f() {} ExplicitInstantiationDeclExportedDefTemplate() {} };
extern template struct ExplicitInstantiationDeclExportedDefTemplate<int>;
template struct __declspec(dllexport) ExplicitInstantiationDeclExportedDefTemplate<int>;
USEMEMFUNC(ExplicitInstantiationDeclExportedDefTemplate<int>, f);
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ExplicitInstantiationDeclExportedDefTemplate@H@@QAEXXZ"
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %struct.ExplicitInstantiationDeclExportedDefTemplate* @"??0?$ExplicitInstantiationDeclExportedDefTemplate@H@@QAE@XZ"
// G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN44ExplicitInstantiationDeclExportedDefTemplateIiE1fEv
template <typename T> struct ImplicitInstantiationExportedExplicitInstantiationDefTemplate { virtual void f() {} };
ImplicitInstantiationExportedExplicitInstantiationDefTemplate<int> ImplicitInstantiationExportedExplicitInstantiationDefTemplateInstance;
template struct __declspec(dllexport) ImplicitInstantiationExportedExplicitInstantiationDefTemplate<int>;
USEMEMFUNC(ImplicitInstantiationExportedExplicitInstantiationDefTemplate<int>, f);
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ImplicitInstantiationExportedExplicitInstantiationDefTemplate@H@@UAEXXZ"
// G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN61ImplicitInstantiationExportedExplicitInstantiationDefTemplateIiE1fEv
template <typename T> struct __declspec(dllexport) ImplicitInstantiationExplicitInstantiationDefExportedTemplate { virtual void f() {} };
ImplicitInstantiationExplicitInstantiationDefExportedTemplate<int> ImplicitInstantiationExplicitInstantiationDefExportedTemplateInstance;
template struct ImplicitInstantiationExplicitInstantiationDefExportedTemplate<int>;
USEMEMFUNC(ImplicitInstantiationExplicitInstantiationDefExportedTemplate<int>, f);
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ImplicitInstantiationExplicitInstantiationDefExportedTemplate@H@@UAEXXZ"
// G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN61ImplicitInstantiationExplicitInstantiationDefExportedTemplateIiE1fEv
template <typename T> struct __declspec(dllexport) ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate { virtual void f() {} };
ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate<int> ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplateInstance;
template struct __declspec(dllexport) ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate<int>;
USEMEMFUNC(ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate<int>, f);
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplate@H@@UAEXXZ"
// G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN69ImplicitInstantiationExportedExplicitInstantiationDefExportedTemplateIiE1fEv
namespace { struct InternalLinkageType {}; }
struct __declspec(dllexport) PR23308 {
void f(InternalLinkageType*);
};
void PR23308::f(InternalLinkageType*) {}
long use(PR23308* p) { p->f(nullptr); }
// M32-DAG: define internal x86_thiscallcc void @"?f@PR23308@@QAEXPAUInternalLinkageType@?A0x{{[^@]*}}@@@Z"
template <typename T> struct PR23770BaseTemplate { void f() {} };
template <typename T> struct PR23770DerivedTemplate : PR23770BaseTemplate<int> {};
extern template struct PR23770DerivedTemplate<int>;
template struct __declspec(dllexport) PR23770DerivedTemplate<int>;
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$PR23770BaseTemplate@H@@QAEXXZ"
namespace InClassInits {
struct __declspec(dllexport) S {
int x = 42;
};
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %"struct.InClassInits::S"* @"??0S@InClassInits@@QAE@XZ"
// dllexport an already instantiated class template.
template <typename T> struct Base {
int x = 42;
};
Base<int> base;
struct __declspec(dllexport) T : Base<int> { };
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %"struct.InClassInits::Base"* @"??0?$Base@H@InClassInits@@QAE@XZ"
struct A { A(int); };
struct __declspec(dllexport) U {
// Class with both default constructor closure and in-class initializer.
U(A = 0) {}
int x = 0;
};
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %"struct.InClassInits::U"* @"??0U@InClassInits@@QAE@UA@1@@Z"
struct Evil {
template <typename T> struct Base {
int x = 0;
};
struct S : Base<int> {};
// The already instantiated Base<int> becomes dllexported below, but the
// in-class initializer for Base<>::x still hasn't been parsed, so emitting
// the default ctor must still be delayed.
struct __declspec(dllexport) T : Base<int> {};
};
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %"struct.InClassInits::Evil::Base"* @"??0?$Base@H@Evil@InClassInits@@QAE@XZ"
template <typename T> struct Foo {};
template <typename T> struct Bar {
Bar<T> &operator=(Foo<T>) {}
};
struct __declspec(dllexport) Baz {
Bar<int> n;
};
// After parsing Baz, in ActOnFinishCXXNonNestedClass we would synthesize
// Baz's operator=, causing instantiation of Foo<int> after which
// ActOnFinishCXXNonNestedClass is called, and we would bite our own tail.
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc nonnull align 1 dereferenceable(1) %"struct.InClassInits::Baz"* @"??4Baz@InClassInits@@QAEAAU01@ABU01@@Z"
// Trying to define the explicitly defaulted ctor must be delayed until the
// in-class initializer for x has been processed.
struct PR40006 {
__declspec(dllexport) PR40006() = default;
int x = 42;
};
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %"struct.InClassInits::PR40006"* @"??0PR40006@InClassInits@@QAE@XZ"
namespace pr40006 {
// Delay emitting the method also past the instantiation of Tmpl<Inner>, i.e.
// until the top-level class Outer is completely finished.
template<typename> struct Tmpl {};
struct Outer {
struct Inner {
__declspec(dllexport) Inner() = default;
unsigned int x = 0;
};
Tmpl<Inner> y;
};
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %"struct.InClassInits::pr40006::Outer::Inner"* @"??0Inner@Outer@pr40006@InClassInits@@QAE@XZ"
}
// PR42857: Clang would try to emit the non-trivial explicitly defaulted
// dllexport ctor twice when doing an explicit instantiation definition.
struct Qux { Qux(); };
template <typename T> struct PR42857 { __declspec(dllexport) PR42857() = default; Qux q; };
template struct PR42857<int>;
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %"struct.InClassInits::PR42857"* @"??0?$PR42857@H@InClassInits@@QAE@XZ"
}
// We had an issue where instantiating A would force emission of B's delayed
// exported methods.
namespace pr26490 {
template <typename T> struct A { };
struct __declspec(dllexport) B {
B(int = 0) {}
A<int> m_fn1() {}
};
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"??_FB@pr26490@@QAEXXZ"
}
// dllexport trumps dllimport on an explicit instantiation.
template <typename T> struct ExplicitInstantiationTwoAttributes { void f() {} };
template struct __declspec(dllexport) __declspec(dllimport) ExplicitInstantiationTwoAttributes<int>;
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?f@?$ExplicitInstantiationTwoAttributes@H@@QAEXXZ"
namespace pr34849 {
// Specializations of exported class template member functions get exported.
template <typename> struct __declspec(dllexport) ExportedClassTemplate { void foo(); };
template<> void ExportedClassTemplate<int>::foo() {}
template struct ExportedClassTemplate<int>;
// M32-DAG: define dso_local dllexport x86_thiscallcc void @"?foo@?$ExportedClassTemplate@H@pr34849@@QAEXXZ"
// Specializations of exported class member template functions do not get exported.
struct __declspec(dllexport) ExportedClass { template <typename> void bar() ; };
template<> void ExportedClass::bar<int>() {}
// M32-DAG: define dso_local x86_thiscallcc void @"??$bar@H@ExportedClass@pr34849@@QAEXXZ"
template <typename> struct __declspec(dllexport) ExportedClassTemplate2 { template <typename> void baz(); };
template<> template<> void ExportedClassTemplate2<int>::baz<int>() {}
// M32-DAG: define dso_local x86_thiscallcc void @"??$baz@H@?$ExportedClassTemplate2@H@pr34849@@QAEXXZ"
}
namespace pr47683 {
struct X { X() {} };
template <typename> struct S {
S() = default;
X x;
};
template struct __declspec(dllexport) S<int>;
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %"struct.pr47683::S"* @"??0?$S@H@pr47683@@QAE@XZ"
template <typename> struct T {
T() = default;
X x;
};
extern template struct T<int>;
template struct __declspec(dllexport) T<int>;
// Don't assert about multiple codegen for explicitly defaulted method in explicit instantiation def.
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %"struct.pr47683::T"* @"??0?$T@H@pr47683@@QAE@XZ"
template <typename> struct U {
U();
X x;
};
template <typename T> U<T>::U() = default;
extern template struct U<int>;
template struct __declspec(dllexport) U<int>;
// Same as T, but with out-of-line ctor.
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %"struct.pr47683::U"* @"??0?$U@H@pr47683@@QAE@XZ"
}
//===----------------------------------------------------------------------===//
// Classes with template base classes
//===----------------------------------------------------------------------===//
template <typename T> struct ClassTemplate { void func(); };
template <typename T> void ClassTemplate<T>::func() {}
template <typename T> struct __declspec(dllexport) ExportedClassTemplate { void func(); };
template <typename T> void ExportedClassTemplate<T>::func() {}
template <typename T> struct __declspec(dllimport) ImportedClassTemplate { void func(); };
template <typename T> void ImportedClassTemplate<T>::func() {}
template <typename T> struct ExplicitlySpecializedTemplate { void func() {} };
template <> struct ExplicitlySpecializedTemplate<int> { void func(); };
void ExplicitlySpecializedTemplate<int>::func() {}
template <typename T> struct ExplicitlyExportSpecializedTemplate { void func() {} };
template <> struct __declspec(dllexport) ExplicitlyExportSpecializedTemplate<int> { void func(); };
void ExplicitlyExportSpecializedTemplate<int>::func() {}
template <typename T> struct ExplicitlyImportSpecializedTemplate { void func(); };
template <> struct __declspec(dllimport) ExplicitlyImportSpecializedTemplate<int> { void func(); };
template <typename T> struct ExplicitlyInstantiatedTemplate { void func(); };
template <typename T> void ExplicitlyInstantiatedTemplate<T>::func() {}
template struct ExplicitlyInstantiatedTemplate<int>;
template <typename T> struct ExplicitlyExportInstantiatedTemplate { void func(); };
template <typename T> void ExplicitlyExportInstantiatedTemplate<T>::func() {}
template struct __declspec(dllexport) ExplicitlyExportInstantiatedTemplate<int>;
template <typename T> struct ExplicitlyImportInstantiatedTemplate { void func(); };
template struct __declspec(dllimport) ExplicitlyImportInstantiatedTemplate<int>;
// MS: ClassTemplate<int> gets exported.
struct __declspec(dllexport) DerivedFromTemplate : public ClassTemplate<int> {};
USEMEMFUNC(DerivedFromTemplate, func)
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ClassTemplate@H@@QAEXXZ"
// G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN13ClassTemplateIiE4funcEv
// ExportedTemplate is explicitly exported.
struct __declspec(dllexport) DerivedFromExportedTemplate : public ExportedClassTemplate<int> {};
USEMEMFUNC(DerivedFromExportedTemplate, func)
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ExportedClassTemplate@H@@QAEXXZ"
// G32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @_ZN21ExportedClassTemplateIiE4funcEv
// ImportedClassTemplate is explicitly imported.
struct __declspec(dllexport) DerivedFromImportedTemplate : public ImportedClassTemplate<int> {};
USEMEMFUNC(DerivedFromImportedTemplate, func)
// M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"?func@?$ImportedClassTemplate@H@@QAEXXZ"
// G32-DAG: declare dllimport x86_thiscallcc void @_ZN21ImportedClassTemplateIiE4funcEv
// Base class already implicitly instantiated without dll attribute.
struct DerivedFromTemplateD : public ClassTemplate<double> {};
struct __declspec(dllexport) DerivedFromTemplateD2 : public ClassTemplate<double> {};
USEMEMFUNC(DerivedFromTemplateD2, func)
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ClassTemplate@N@@QAEXXZ"
// G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN13ClassTemplateIdE4funcEv
// MS: Base class already instantiated with different dll attribute.
struct __declspec(dllimport) DerivedFromTemplateB : public ClassTemplate<bool> {};
struct __declspec(dllexport) DerivedFromTemplateB2 : public ClassTemplate<bool> {};
USEMEMFUNC(DerivedFromTemplateB2, func)
// M32-DAG: {{declare|define available_externally}} dllimport x86_thiscallcc void @"?func@?$ClassTemplate@_N@@QAEXXZ"
// G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN13ClassTemplateIbE4funcEv
// Base class already specialized without dll attribute.
struct __declspec(dllexport) DerivedFromExplicitlySpecializedTemplate : public ExplicitlySpecializedTemplate<int> {};
USEMEMFUNC(DerivedFromExplicitlySpecializedTemplate, func)
// M32-DAG: define dso_local x86_thiscallcc void @"?func@?$ExplicitlySpecializedTemplate@H@@QAEXXZ"
// G32-DAG: define dso_local x86_thiscallcc void @_ZN29ExplicitlySpecializedTemplateIiE4funcEv
// Base class alredy specialized with export attribute.
struct __declspec(dllexport) DerivedFromExplicitlyExportSpecializedTemplate : public ExplicitlyExportSpecializedTemplate<int> {};
USEMEMFUNC(DerivedFromExplicitlyExportSpecializedTemplate, func)
// M32-DAG: define dso_local dllexport x86_thiscallcc void @"?func@?$ExplicitlyExportSpecializedTemplate@H@@QAEXXZ"
// G32-DAG: define dso_local dllexport x86_thiscallcc void @_ZN35ExplicitlyExportSpecializedTemplateIiE4funcEv
// Base class already specialized with import attribute.
struct __declspec(dllexport) DerivedFromExplicitlyImportSpecializedTemplate : public ExplicitlyImportSpecializedTemplate<int> {};
USEMEMFUNC(DerivedFromExplicitlyImportSpecializedTemplate, func)
// M32-DAG: declare dllimport x86_thiscallcc void @"?func@?$ExplicitlyImportSpecializedTemplate@H@@QAEXXZ"
// G32-DAG: declare dllimport x86_thiscallcc void @_ZN35ExplicitlyImportSpecializedTemplateIiE4funcEv
// Base class already instantiated without dll attribute.
struct __declspec(dllexport) DerivedFromExplicitlyInstantiatedTemplate : public ExplicitlyInstantiatedTemplate<int> {};
USEMEMFUNC(DerivedFromExplicitlyInstantiatedTemplate, func)
// M32-DAG: define weak_odr dso_local x86_thiscallcc void @"?func@?$ExplicitlyInstantiatedTemplate@H@@QAEXXZ"
// G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN30ExplicitlyInstantiatedTemplateIiE4funcEv
// Base class already instantiated with export attribute.
struct __declspec(dllexport) DerivedFromExplicitlyExportInstantiatedTemplate : public ExplicitlyExportInstantiatedTemplate<int> {};
USEMEMFUNC(DerivedFromExplicitlyExportInstantiatedTemplate, func)
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ExplicitlyExportInstantiatedTemplate@H@@QAEXXZ"
// G32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @_ZN36ExplicitlyExportInstantiatedTemplateIiE4funcEv
// Base class already instantiated with import attribute.
struct __declspec(dllexport) DerivedFromExplicitlyImportInstantiatedTemplate : public ExplicitlyImportInstantiatedTemplate<int> {};
USEMEMFUNC(DerivedFromExplicitlyImportInstantiatedTemplate, func)
// M32-DAG: declare dllimport x86_thiscallcc void @"?func@?$ExplicitlyImportInstantiatedTemplate@H@@QAEXXZ"
// G32-DAG: declare dllimport x86_thiscallcc void @_ZN36ExplicitlyImportInstantiatedTemplateIiE4funcEv
// MS: A dll attribute propagates through multiple levels of instantiation.
template <typename T> struct TopClass { void func() {} };
template <typename T> struct MiddleClass : public TopClass<T> { };
struct __declspec(dllexport) BottomClass : public MiddleClass<int> { };
USEMEMFUNC(BottomClass, func)
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$TopClass@H@@QAEXXZ"
// G32-DAG: define linkonce_odr dso_local x86_thiscallcc void @_ZN8TopClassIiE4funcEv
template <typename T> struct ExplicitInstantiationDeclTemplateBase { void func() {} };
extern template struct ExplicitInstantiationDeclTemplateBase<int>;
struct __declspec(dllexport) DerivedFromExplicitInstantiationDeclTemplateBase : public ExplicitInstantiationDeclTemplateBase<int> {};
template struct ExplicitInstantiationDeclTemplateBase<int>;
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc void @"?func@?$ExplicitInstantiationDeclTemplateBase@H@@QAEXXZ"
// G32-DAG: define weak_odr dso_local x86_thiscallcc void @_ZN37ExplicitInstantiationDeclTemplateBaseIiE4funcEv
// PR26076
struct LayerSelectionBound;
template <typename> struct Selection {};
typedef Selection<LayerSelectionBound> LayerSelection;
struct LayerImpl;
struct __declspec(dllexport) LayerTreeImpl {
struct __declspec(dllexport) ElementLayers {
LayerImpl *main = nullptr;
};
LayerSelection foo;
};
// M32-DAG: define weak_odr dso_local dllexport x86_thiscallcc %"struct.LayerTreeImpl::ElementLayers"* @"??0ElementLayers@LayerTreeImpl@@QAE@XZ"
// M64-DAG: define weak_odr dso_local dllexport %"struct.LayerTreeImpl::ElementLayers"* @"??0ElementLayers@LayerTreeImpl@@QEAA@XZ"
namespace pr39496 {
// Make sure dll attribute are inherited by static locals also in template
// specializations.
template <typename> struct __declspec(dllexport) S { int foo() { static int x; return x++; } };
int foo() { S<int> s; return s.foo(); }
// MSC-DAG: @"?x@?{{1|2}}??foo@?$S@H@pr39496@@Q{{[A-Z]*}}HXZ@4HA" = weak_odr dso_local dllexport global i32 0, comdat, align 4
template <typename> struct T { int foo() { static int x; return x++; } };
template struct __declspec(dllexport) T<int>;
// 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
}
class __declspec(dllexport) ACE_Shared_Object {
public:
virtual ~ACE_Shared_Object();
};
class __declspec(dllexport) ACE_Service_Object : public ACE_Shared_Object {};
// Implicit move constructor declaration.
// MSVC2015-DAG: define weak_odr dso_local dllexport {{.+}}ACE_Service_Object@@Q{{.+}}@$$Q
// The declarations should not be exported.
// MSVC2013-NOT: define weak_odr dso_local dllexport {{.+}}ACE_Service_Object@@Q{{.+}}@$$Q