Hans Wennborg 853ae94660 Start adding support for dllimport/dllexport on classes (PR11170)
This implements the central part of support for dllimport/dllexport on
classes: allowing the attribute on class declarations, inheriting it
to class members, and forcing emission of exported members. It's based
on Nico Rieck's patch from http://reviews.llvm.org/D1099.

This patch doesn't propagate dllexport to bases that are template
specializations, which is an interesting problem. It also doesn't
look at the rules when redeclaring classes with different attributes,
I'd like to do that separately.

Differential Revision: http://reviews.llvm.org/D3877

llvm-svn: 209908
2014-05-30 16:59:42 +00:00

570 lines
29 KiB
C++

// RUN: %clang_cc1 -triple i686-windows-msvc -fno-rtti -emit-llvm -std=c++1y -O0 -o - %s -DMSABI | FileCheck --check-prefix=MSC --check-prefix=M32 %s
// RUN: %clang_cc1 -triple x86_64-windows-msvc -fno-rtti -emit-llvm -std=c++1y -O0 -o - %s -DMSABI | FileCheck --check-prefix=MSC --check-prefix=M64 %s
// RUN: %clang_cc1 -triple i686-windows-gnu -fno-rtti -emit-llvm -std=c++1y -O0 -o - %s | FileCheck --check-prefix=GNU --check-prefix=G32 %s
// RUN: %clang_cc1 -triple x86_64-windows-gnu -fno-rtti -emit-llvm -std=c++1y -O0 -o - %s | FileCheck --check-prefix=GNU --check-prefix=G64 %s
// RUN: %clang_cc1 -triple i686-windows-msvc -fno-rtti -emit-llvm -std=c++1y -O1 -o - %s -DMSABI | FileCheck --check-prefix=MO1 %s
// RUN: %clang_cc1 -triple i686-windows-gnu -fno-rtti -emit-llvm -std=c++1y -O1 -o - %s | FileCheck --check-prefix=GO1 %s
// Helper structs to make templates more expressive.
struct ImplicitInst_Imported {};
struct ImplicitInst_NotImported {};
struct ExplicitDecl_Imported {};
struct ExplicitInst_Imported {};
struct ExplicitSpec_Imported {};
struct ExplicitSpec_Def_Imported {};
struct ExplicitSpec_InlineDef_Imported {};
struct ExplicitSpec_NotImported {};
#define JOIN2(x, y) x##y
#define JOIN(x, y) JOIN2(x, y)
#define UNIQ(name) JOIN(name, __LINE__)
#define USEVARTYPE(type, var) type UNIQ(use)() { return var; }
#define USEVAR(var) USEVARTYPE(int, var)
#define USE(func) void UNIQ(use)() { func(); }
#define USEMEMFUNC(class, func) void (class::*UNIQ(use)())() { return &class::func; }
#define USECLASS(class) void UNIQ(USE)() { class x; }
//===----------------------------------------------------------------------===//
// Globals
//===----------------------------------------------------------------------===//
// Import declaration.
// MSC-DAG: @"\01?ExternGlobalDecl@@3HA" = external dllimport global i32
// GNU-DAG: @ExternGlobalDecl = external dllimport global i32
__declspec(dllimport) extern int ExternGlobalDecl;
USEVAR(ExternGlobalDecl)
// dllimport implies a declaration.
// MSC-DAG: @"\01?GlobalDecl@@3HA" = external dllimport global i32
// GNU-DAG: @GlobalDecl = external dllimport global i32
__declspec(dllimport) int GlobalDecl;
USEVAR(GlobalDecl)
// Redeclarations
// MSC-DAG: @"\01?GlobalRedecl1@@3HA" = external dllimport global i32
// GNU-DAG: @GlobalRedecl1 = external dllimport global i32
__declspec(dllimport) extern int GlobalRedecl1;
__declspec(dllimport) extern int GlobalRedecl1;
USEVAR(GlobalRedecl1)
// MSC-DAG: @"\01?GlobalRedecl2a@@3HA" = external dllimport global i32
// GNU-DAG: @GlobalRedecl2a = external dllimport global i32
__declspec(dllimport) int GlobalRedecl2a;
__declspec(dllimport) int GlobalRedecl2a;
USEVAR(GlobalRedecl2a)
// M32-DAG: @"\01?GlobalRedecl2b@@3PAHA" = external dllimport global i32*
// M64-DAG: @"\01?GlobalRedecl2b@@3PEAHEA" = external dllimport global i32*
// GNU-DAG: @GlobalRedecl2b = external dllimport global i32*
int *__attribute__((dllimport)) GlobalRedecl2b;
int *__attribute__((dllimport)) GlobalRedecl2b;
USEVARTYPE(int*, GlobalRedecl2b)
// MSC-DAG: @"\01?GlobalRedecl2c@@3HA" = external dllimport global i32
// GNU-DAG: @GlobalRedecl2c = external dllimport global i32
int GlobalRedecl2c __attribute__((dllimport));
int GlobalRedecl2c __attribute__((dllimport));
USEVAR(GlobalRedecl2c)
// NB: MSC issues a warning and makes GlobalRedecl3 dllexport. We follow GCC
// and drop the dllimport with a warning.
// MSC-DAG: @"\01?GlobalRedecl3@@3HA" = external global i32
// GNU-DAG: @GlobalRedecl3 = external global i32
__declspec(dllimport) extern int GlobalRedecl3;
extern int GlobalRedecl3; // dllimport ignored
USEVAR(GlobalRedecl3)
// MSC-DAG: @"\01?ExternalGlobal@ns@@3HA" = external dllimport global i32
// GNU-DAG: @_ZN2ns14ExternalGlobalE = external dllimport global i32
namespace ns { __declspec(dllimport) int ExternalGlobal; }
USEVAR(ns::ExternalGlobal)
//===----------------------------------------------------------------------===//
// Variable templates
//===----------------------------------------------------------------------===//
// Import declaration.
// MSC-DAG: @"\01??$ExternVarTmplDecl@UImplicitInst_Imported@@@@3HA" = external dllimport global i32
// GNU-DAG: @_Z17ExternVarTmplDeclI21ImplicitInst_ImportedE = external dllimport global i32
template<typename T> __declspec(dllimport) extern int ExternVarTmplDecl;
USEVAR(ExternVarTmplDecl<ImplicitInst_Imported>)
// dllimport implies a declaration.
// MSC-DAG: @"\01??$VarTmplDecl@UImplicitInst_Imported@@@@3HA" = external dllimport global i32
// GNU-DAG: @_Z11VarTmplDeclI21ImplicitInst_ImportedE = external dllimport global i32
template<typename T> __declspec(dllimport) int VarTmplDecl;
USEVAR(VarTmplDecl<ImplicitInst_Imported>)
// Redeclarations
// MSC-DAG: @"\01??$VarTmplRedecl1@UImplicitInst_Imported@@@@3HA" = external dllimport global i32
// GNU-DAG: @_Z14VarTmplRedecl1I21ImplicitInst_ImportedE = external dllimport global i32
template<typename T> __declspec(dllimport) extern int VarTmplRedecl1;
template<typename T> __declspec(dllimport) extern int VarTmplRedecl1;
USEVAR(VarTmplRedecl1<ImplicitInst_Imported>)
// MSC-DAG: @"\01??$VarTmplRedecl2@UImplicitInst_Imported@@@@3HA" = external dllimport global i32
// GNU-DAG: @_Z14VarTmplRedecl2I21ImplicitInst_ImportedE = external dllimport global i32
template<typename T> __declspec(dllimport) int VarTmplRedecl2;
template<typename T> __declspec(dllimport) int VarTmplRedecl2;
USEVAR(VarTmplRedecl2<ImplicitInst_Imported>)
// MSC-DAG: @"\01??$VarTmplRedecl3@UImplicitInst_Imported@@@@3HA" = external global i32
// GNU-DAG: @_Z14VarTmplRedecl3I21ImplicitInst_ImportedE = external global i32
template<typename T> __declspec(dllimport) extern int VarTmplRedecl3;
template<typename T> extern int VarTmplRedecl3; // dllimport ignored
USEVAR(VarTmplRedecl3<ImplicitInst_Imported>)
// MSC-DAG: @"\01??$ExternalVarTmpl@UImplicitInst_Imported@@@ns@@3HA" = external dllimport global i32
// GNU-DAG: @_ZN2ns15ExternalVarTmplI21ImplicitInst_ImportedEE = external dllimport global i32
namespace ns { template<typename T> __declspec(dllimport) int ExternalVarTmpl; }
USEVAR(ns::ExternalVarTmpl<ImplicitInst_Imported>)
template<typename T> int VarTmpl;
template<typename T> __declspec(dllimport) int ImportedVarTmpl;
// Import implicit instantiation of an imported variable template.
// MSC-DAG: @"\01??$ImportedVarTmpl@UImplicitInst_Imported@@@@3HA" = external dllimport global i32
// GNU-DAG: @_Z15ImportedVarTmplI21ImplicitInst_ImportedE = external dllimport global i32
USEVAR(ImportedVarTmpl<ImplicitInst_Imported>)
// Import explicit instantiation declaration of an imported variable template.
// MSC-DAG: @"\01??$ImportedVarTmpl@UExplicitDecl_Imported@@@@3HA" = external dllimport global i32
// GNU-DAG: @_Z15ImportedVarTmplI21ExplicitDecl_ImportedE = external dllimport global i32
extern template int ImportedVarTmpl<ExplicitDecl_Imported>;
USEVAR(ImportedVarTmpl<ExplicitDecl_Imported>)
// An explicit instantiation definition of an imported variable template cannot
// be imported because the template must be defined which is illegal.
// Import specialization of an imported variable template.
// MSC-DAG: @"\01??$ImportedVarTmpl@UExplicitSpec_Imported@@@@3HA" = external dllimport global i32
// GNU-DAG: @_Z15ImportedVarTmplI21ExplicitSpec_ImportedE = external dllimport global i32
template<> __declspec(dllimport) int ImportedVarTmpl<ExplicitSpec_Imported>;
USEVAR(ImportedVarTmpl<ExplicitSpec_Imported>)
// Not importing specialization of an imported variable template without
// explicit dllimport.
// MSC-DAG: @"\01??$ImportedVarTmpl@UExplicitSpec_NotImported@@@@3HA" = global i32 0, align 4
// GNU-DAG: @_Z15ImportedVarTmplI24ExplicitSpec_NotImportedE = global i32 0, align 4
template<> int ImportedVarTmpl<ExplicitSpec_NotImported>;
USEVAR(ImportedVarTmpl<ExplicitSpec_NotImported>)
// Import explicit instantiation declaration of a non-imported variable template.
// MSC-DAG: @"\01??$VarTmpl@UExplicitDecl_Imported@@@@3HA" = external dllimport global i32
// GNU-DAG: @_Z7VarTmplI21ExplicitDecl_ImportedE = external dllimport global i32
extern template __declspec(dllimport) int VarTmpl<ExplicitDecl_Imported>;
USEVAR(VarTmpl<ExplicitDecl_Imported>)
// Import explicit instantiation definition of a non-imported variable template.
// MSC-DAG: @"\01??$VarTmpl@UExplicitInst_Imported@@@@3HA" = external dllimport global i32
// GNU-DAG: @_Z7VarTmplI21ExplicitInst_ImportedE = external dllimport global i32
template __declspec(dllimport) int VarTmpl<ExplicitInst_Imported>;
USEVAR(VarTmpl<ExplicitInst_Imported>)
// Import specialization of a non-imported variable template.
// MSC-DAG: @"\01??$VarTmpl@UExplicitSpec_Imported@@@@3HA" = external dllimport global i32
// GNU-DAG: @_Z7VarTmplI21ExplicitSpec_ImportedE = external dllimport global i32
template<> __declspec(dllimport) int VarTmpl<ExplicitSpec_Imported>;
USEVAR(VarTmpl<ExplicitSpec_Imported>)
//===----------------------------------------------------------------------===//
// Functions
//===----------------------------------------------------------------------===//
// Import function declaration.
// MSC-DAG: declare dllimport void @"\01?decl@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z4declv()
__declspec(dllimport) void decl();
USE(decl)
// extern "C"
// MSC-DAG: declare dllimport void @externC()
// GNU-DAG: declare dllimport void @externC()
extern "C" __declspec(dllimport) void externC();
USE(externC)
// Import inline function.
// MSC-DAG: declare dllimport void @"\01?inlineFunc@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z10inlineFuncv()
// MO1-DAG: define available_externally dllimport void @"\01?inlineFunc@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z10inlineFuncv()
__declspec(dllimport) inline void inlineFunc() {}
USE(inlineFunc)
// MSC-DAG: declare dllimport void @"\01?inlineDecl@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z10inlineDeclv()
// MO1-DAG: define available_externally dllimport void @"\01?inlineDecl@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z10inlineDeclv()
__declspec(dllimport) inline void inlineDecl();
void inlineDecl() {}
USE(inlineDecl)
// MSC-DAG: declare dllimport void @"\01?inlineDef@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z9inlineDefv()
// MO1-DAG: define available_externally dllimport void @"\01?inlineDef@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z9inlineDefv()
__declspec(dllimport) void inlineDef();
inline void inlineDef() {}
USE(inlineDef)
// inline attributes
// MSC-DAG: declare dllimport void @"\01?noinline@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z8noinlinev()
__declspec(dllimport) __attribute__((noinline)) inline void noinline() {}
USE(noinline)
// MSC-NOT: @"\01?alwaysInline@@YAXXZ"()
// GNU-NOT: @_Z12alwaysInlinev()
__declspec(dllimport) __attribute__((always_inline)) inline void alwaysInline() {}
USE(alwaysInline)
// Redeclarations
// MSC-DAG: declare dllimport void @"\01?redecl1@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z7redecl1v()
__declspec(dllimport) void redecl1();
__declspec(dllimport) void redecl1();
USE(redecl1)
// NB: MSC issues a warning and makes redecl2/redecl3 dllexport. We follow GCC
// and drop the dllimport with a warning.
// MSC-DAG: declare void @"\01?redecl2@@YAXXZ"()
// GNU-DAG: declare void @_Z7redecl2v()
__declspec(dllimport) void redecl2();
void redecl2();
USE(redecl2)
// MSC-DAG: define void @"\01?redecl3@@YAXXZ"()
// GNU-DAG: define void @_Z7redecl3v()
__declspec(dllimport) void redecl3();
void redecl3() {} // dllimport ignored
USE(redecl3)
// Friend functions
// MSC-DAG: declare dllimport void @"\01?friend1@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z7friend1v()
// MSC-DAG: declare void @"\01?friend2@@YAXXZ"()
// GNU-DAG: declare void @_Z7friend2v()
// MSC-DAG: define void @"\01?friend3@@YAXXZ"()
// GNU-DAG: define void @_Z7friend3v()
struct FuncFriend {
friend __declspec(dllimport) void friend1();
friend __declspec(dllimport) void friend2();
friend __declspec(dllimport) void friend3();
};
__declspec(dllimport) void friend1();
void friend2(); // dllimport ignored
void friend3() {} // dllimport ignored
USE(friend1)
USE(friend2)
USE(friend3)
// Implicit declarations can be redeclared with dllimport.
// MSC-DAG: declare dllimport noalias i8* @"\01??2@{{YAPAXI|YAPEAX_K}}@Z"(
// GNU-DAG: declare dllimport noalias i8* @_Znw{{[yj]}}(
__declspec(dllimport) void* operator new(__SIZE_TYPE__ n);
void UNIQ(use)() { ::operator new(42); }
// MSC-DAG: declare dllimport void @"\01?externalFunc@ns@@YAXXZ"()
// GNU-DAG: declare dllimport void @_ZN2ns12externalFuncEv()
namespace ns { __declspec(dllimport) void externalFunc(); }
USE(ns::externalFunc)
//===----------------------------------------------------------------------===//
// Function templates
//===----------------------------------------------------------------------===//
// Import function template declaration.
// MSC-DAG: declare dllimport void @"\01??$funcTmplDecl@UImplicitInst_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z12funcTmplDeclI21ImplicitInst_ImportedEvv()
template<typename T> __declspec(dllimport) void funcTmplDecl();
USE(funcTmplDecl<ImplicitInst_Imported>)
// Function template definitions cannot be imported.
// Import inline function template.
// MSC-DAG: declare dllimport void @"\01??$inlineFuncTmpl1@UImplicitInst_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z15inlineFuncTmpl1I21ImplicitInst_ImportedEvv()
// MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmpl1@UImplicitInst_Imported@@@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z15inlineFuncTmpl1I21ImplicitInst_ImportedEvv()
template<typename T> __declspec(dllimport) inline void inlineFuncTmpl1() {}
USE(inlineFuncTmpl1<ImplicitInst_Imported>)
// MSC-DAG: declare dllimport void @"\01??$inlineFuncTmpl2@UImplicitInst_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z15inlineFuncTmpl2I21ImplicitInst_ImportedEvv()
// MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmpl2@UImplicitInst_Imported@@@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z15inlineFuncTmpl2I21ImplicitInst_ImportedEvv()
template<typename T> inline void __attribute__((dllimport)) inlineFuncTmpl2() {}
USE(inlineFuncTmpl2<ImplicitInst_Imported>)
// MSC-DAG: declare dllimport void @"\01??$inlineFuncTmplDecl@UImplicitInst_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z18inlineFuncTmplDeclI21ImplicitInst_ImportedEvv()
// MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmplDecl@UImplicitInst_Imported@@@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z18inlineFuncTmplDeclI21ImplicitInst_ImportedEvv()
template<typename T> __declspec(dllimport) inline void inlineFuncTmplDecl();
template<typename T> void inlineFuncTmplDecl() {}
USE(inlineFuncTmplDecl<ImplicitInst_Imported>)
// MSC-DAG: declare dllimport void @"\01??$inlineFuncTmplDef@UImplicitInst_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z17inlineFuncTmplDefI21ImplicitInst_ImportedEvv()
// MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmplDef@UImplicitInst_Imported@@@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z17inlineFuncTmplDefI21ImplicitInst_ImportedEvv()
template<typename T> __declspec(dllimport) void inlineFuncTmplDef();
template<typename T> inline void inlineFuncTmplDef() {}
USE(inlineFuncTmplDef<ImplicitInst_Imported>)
// Redeclarations
// MSC-DAG: declare dllimport void @"\01??$funcTmplRedecl1@UImplicitInst_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z15funcTmplRedecl1I21ImplicitInst_ImportedEvv()
template<typename T> __declspec(dllimport) void funcTmplRedecl1();
template<typename T> __declspec(dllimport) void funcTmplRedecl1();
USE(funcTmplRedecl1<ImplicitInst_Imported>)
// MSC-DAG: declare void @"\01??$funcTmplRedecl2@UImplicitInst_NotImported@@@@YAXXZ"()
// GNU-DAG: declare void @_Z15funcTmplRedecl2I24ImplicitInst_NotImportedEvv()
template<typename T> __declspec(dllimport) void funcTmplRedecl2();
template<typename T> void funcTmplRedecl2(); // dllimport ignored
USE(funcTmplRedecl2<ImplicitInst_NotImported>)
// MSC-DAG: define linkonce_odr void @"\01??$funcTmplRedecl3@UImplicitInst_NotImported@@@@YAXXZ"()
// GNU-DAG: define linkonce_odr void @_Z15funcTmplRedecl3I24ImplicitInst_NotImportedEvv()
template<typename T> __declspec(dllimport) void funcTmplRedecl3();
template<typename T> void funcTmplRedecl3() {} // dllimport ignored
USE(funcTmplRedecl3<ImplicitInst_NotImported>)
// Function template friends
// MSC-DAG: declare dllimport void @"\01??$funcTmplFriend1@UImplicitInst_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z15funcTmplFriend1I21ImplicitInst_ImportedEvv()
// MSC-DAG: declare void @"\01??$funcTmplFriend2@UImplicitInst_NotImported@@@@YAXXZ"()
// GNU-DAG: declare void @_Z15funcTmplFriend2I24ImplicitInst_NotImportedEvv()
// MSC-DAG: define linkonce_odr void @"\01??$funcTmplFriend3@UImplicitInst_NotImported@@@@YAXXZ"()
// GNU-DAG: define linkonce_odr void @_Z15funcTmplFriend3I24ImplicitInst_NotImportedEvv()
// MSC-DAG: declare dllimport void @"\01??$funcTmplFriend4@UImplicitInst_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z15funcTmplFriend4I21ImplicitInst_ImportedEvv()
struct FuncTmplFriend {
template<typename T> friend __declspec(dllimport) void funcTmplFriend1();
template<typename T> friend __declspec(dllimport) void funcTmplFriend2();
template<typename T> friend __declspec(dllimport) void funcTmplFriend3();
template<typename T> friend __declspec(dllimport) inline void funcTmplFriend4();
};
template<typename T> __declspec(dllimport) void funcTmplFriend1();
template<typename T> void funcTmplFriend2(); // dllimport ignored
template<typename T> void funcTmplFriend3() {} // dllimport ignored
template<typename T> inline void funcTmplFriend4() {}
USE(funcTmplFriend1<ImplicitInst_Imported>)
USE(funcTmplFriend2<ImplicitInst_NotImported>)
USE(funcTmplFriend3<ImplicitInst_NotImported>)
USE(funcTmplFriend4<ImplicitInst_Imported>)
// MSC-DAG: declare dllimport void @"\01??$externalFuncTmpl@UImplicitInst_Imported@@@ns@@YAXXZ"()
// GNU-DAG: declare dllimport void @_ZN2ns16externalFuncTmplI21ImplicitInst_ImportedEEvv()
namespace ns { template<typename T> __declspec(dllimport) void externalFuncTmpl(); }
USE(ns::externalFuncTmpl<ImplicitInst_Imported>)
template<typename T> void funcTmpl() {}
template<typename T> inline void inlineFuncTmpl() {}
template<typename T> __declspec(dllimport) void importedFuncTmplDecl();
template<typename T> __declspec(dllimport) inline void importedFuncTmpl() {}
// Import implicit instantiation of an imported function template.
// MSC-DAG: declare dllimport void @"\01??$importedFuncTmplDecl@UImplicitInst_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z20importedFuncTmplDeclI21ImplicitInst_ImportedEvv()
USE(importedFuncTmplDecl<ImplicitInst_Imported>)
// MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UImplicitInst_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z16importedFuncTmplI21ImplicitInst_ImportedEvv()
// MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmpl@UImplicitInst_Imported@@@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z16importedFuncTmplI21ImplicitInst_ImportedEvv()
USE(importedFuncTmpl<ImplicitInst_Imported>)
// Import explicit instantiation declaration of an imported function template.
// MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UExplicitDecl_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z16importedFuncTmplI21ExplicitDecl_ImportedEvv()
// MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmpl@UExplicitDecl_Imported@@@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z16importedFuncTmplI21ExplicitDecl_ImportedEvv()
extern template void importedFuncTmpl<ExplicitDecl_Imported>();
USE(importedFuncTmpl<ExplicitDecl_Imported>)
// Import explicit instantiation definition of an imported function template.
// MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UExplicitInst_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z16importedFuncTmplI21ExplicitInst_ImportedEvv()
// MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmpl@UExplicitInst_Imported@@@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z16importedFuncTmplI21ExplicitInst_ImportedEvv()
template void importedFuncTmpl<ExplicitInst_Imported>();
USE(importedFuncTmpl<ExplicitInst_Imported>)
// Import specialization of an imported function template.
// MSC-DAG: declare dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z20importedFuncTmplDeclI21ExplicitSpec_ImportedEvv()
template<> __declspec(dllimport) void importedFuncTmplDecl<ExplicitSpec_Imported>();
USE(importedFuncTmplDecl<ExplicitSpec_Imported>)
// MSC-DAG-FIXME: declare dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_Def_Imported@@@@YAXXZ"()
// MO1-DAG-FIXME: define available_externally dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_Def_Imported@@@@YAXXZ"()
#ifdef MSABI
//template<> __declspec(dllimport) void importedFuncTmplDecl<ExplicitSpec_Def_Imported>() {}
//USE(importedFuncTmplDecl<ExplicitSpec_Def_Imported>)
#endif
// MSC-DAG: declare dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z20importedFuncTmplDeclI31ExplicitSpec_InlineDef_ImportedEvv()
// MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmplDecl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z20importedFuncTmplDeclI31ExplicitSpec_InlineDef_ImportedEvv()
template<> __declspec(dllimport) inline void importedFuncTmplDecl<ExplicitSpec_InlineDef_Imported>() {}
USE(importedFuncTmplDecl<ExplicitSpec_InlineDef_Imported>)
// MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z16importedFuncTmplI21ExplicitSpec_ImportedEvv()
template<> __declspec(dllimport) void importedFuncTmpl<ExplicitSpec_Imported>();
USE(importedFuncTmpl<ExplicitSpec_Imported>)
// MSC-DAG-FIXME: declare dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_Def_Imported@@@@YAXXZ"()
// MO1-DAG-FIXME: define available_externally dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_Def_Imported@@@@YAXXZ"()
#ifdef MSABI
//template<> __declspec(dllimport) void importedFuncTmpl<ExplicitSpec_Def_Imported>() {}
//USE(importedFuncTmpl<ExplicitSpec_Def_Imported>)
#endif
// MSC-DAG: declare dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z16importedFuncTmplI31ExplicitSpec_InlineDef_ImportedEvv()
// MO1-DAG: define available_externally dllimport void @"\01??$importedFuncTmpl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z16importedFuncTmplI31ExplicitSpec_InlineDef_ImportedEvv()
template<> __declspec(dllimport) inline void importedFuncTmpl<ExplicitSpec_InlineDef_Imported>() {}
USE(importedFuncTmpl<ExplicitSpec_InlineDef_Imported>)
// Not importing specialization of an imported function template without
// explicit dllimport.
// MSC-DAG: define void @"\01??$importedFuncTmpl@UExplicitSpec_NotImported@@@@YAXXZ"()
// GNU-DAG: define void @_Z16importedFuncTmplI24ExplicitSpec_NotImportedEvv()
template<> void importedFuncTmpl<ExplicitSpec_NotImported>() {}
USE(importedFuncTmpl<ExplicitSpec_NotImported>)
// Import explicit instantiation declaration of a non-imported function template.
// MSC-DAG: declare dllimport void @"\01??$funcTmpl@UExplicitDecl_Imported@@@@YAXXZ"()
// MSC-DAG: declare dllimport void @"\01??$inlineFuncTmpl@UExplicitDecl_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z8funcTmplI21ExplicitDecl_ImportedEvv()
// GNU-DAG: declare dllimport void @_Z14inlineFuncTmplI21ExplicitDecl_ImportedEvv()
// MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmpl@UExplicitDecl_Imported@@@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z14inlineFuncTmplI21ExplicitDecl_ImportedEvv()
extern template __declspec(dllimport) void funcTmpl<ExplicitDecl_Imported>();
extern template __declspec(dllimport) void inlineFuncTmpl<ExplicitDecl_Imported>();
USE(funcTmpl<ExplicitDecl_Imported>)
USE(inlineFuncTmpl<ExplicitDecl_Imported>)
// Import explicit instantiation definition of a non-imported function template.
// MSC-DAG: declare dllimport void @"\01??$funcTmpl@UExplicitInst_Imported@@@@YAXXZ"()
// MSC-DAG: declare dllimport void @"\01??$inlineFuncTmpl@UExplicitInst_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z8funcTmplI21ExplicitInst_ImportedEvv()
// GNU-DAG: declare dllimport void @_Z14inlineFuncTmplI21ExplicitInst_ImportedEvv()
// MO1-DAG: define available_externally dllimport void @"\01??$funcTmpl@UExplicitInst_Imported@@@@YAXXZ"()
// MO1-DAG: define available_externally dllimport void @"\01??$inlineFuncTmpl@UExplicitInst_Imported@@@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z8funcTmplI21ExplicitInst_ImportedEvv()
// GO1-DAG: define available_externally dllimport void @_Z14inlineFuncTmplI21ExplicitInst_ImportedEvv()
template __declspec(dllimport) void funcTmpl<ExplicitInst_Imported>();
template __declspec(dllimport) void inlineFuncTmpl<ExplicitInst_Imported>();
USE(funcTmpl<ExplicitInst_Imported>)
USE(inlineFuncTmpl<ExplicitInst_Imported>)
// Import specialization of a non-imported function template.
// MSC-DAG: declare dllimport void @"\01??$funcTmpl@UExplicitSpec_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z8funcTmplI21ExplicitSpec_ImportedEvv()
template<> __declspec(dllimport) void funcTmpl<ExplicitSpec_Imported>();
USE(funcTmpl<ExplicitSpec_Imported>)
// MSC-DAG-FIXME: declare dllimport void @"\01??$funcTmpl@UExplicitSpec_Def_Imported@@@@YAXXZ"()
// MO1-DAG-FIXME: define available_externally dllimport void @"\01??$funcTmpl@UExplicitSpec_Def_Imported@@@@YAXXZ"()
#ifdef MSABI
//template<> __declspec(dllimport) void funcTmpl<ExplicitSpec_Def_Imported>() {}
//USE(funcTmpl<ExplicitSpec_Def_Imported>)
#endif
// MSC-DAG: declare dllimport void @"\01??$funcTmpl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"()
// GNU-DAG: declare dllimport void @_Z8funcTmplI31ExplicitSpec_InlineDef_ImportedEvv()
// MO1-DAG: define available_externally dllimport void @"\01??$funcTmpl@UExplicitSpec_InlineDef_Imported@@@@YAXXZ"()
// GO1-DAG: define available_externally dllimport void @_Z8funcTmplI31ExplicitSpec_InlineDef_ImportedEvv()
template<> __declspec(dllimport) inline void funcTmpl<ExplicitSpec_InlineDef_Imported>() {}
USE(funcTmpl<ExplicitSpec_InlineDef_Imported>)
//===----------------------------------------------------------------------===//
// Classes
//===----------------------------------------------------------------------===//
struct __declspec(dllimport) T {
void a() {}
// MO1-DAG: define available_externally dllimport x86_thiscallcc void @"\01?a@T@@QAEXXZ"
static int b;
// MO1-DAG: @"\01?b@T@@2HA" = external dllimport global i32
};
USEMEMFUNC(T, a)
USEVAR(T::b)
template <typename T> struct __declspec(dllimport) U { void foo() {} };
// MO1-DAG: define available_externally dllimport x86_thiscallcc void @"\01?foo@?$U@H@@QAEXXZ"
struct __declspec(dllimport) V : public U<int> { };
USEMEMFUNC(V, foo)
struct __declspec(dllimport) W { virtual void foo() {} };
USECLASS(W)
// vftable:
// MO1-DAG: @"\01??_7W@@6B@" = available_externally dllimport unnamed_addr constant [1 x i8*] [i8* bitcast (void (%struct.W*)* @"\01?foo@W@@UAEXXZ" to i8*)]
struct __declspec(dllimport) X : public virtual W {};
USECLASS(X)
// vbtable:
// MO1-DAG: @"\01??_8X@@7B@" = available_externally dllimport unnamed_addr constant [2 x i32] [i32 0, i32 4]
struct __declspec(dllimport) Y {
int x;
};
struct __declspec(dllimport) Z { virtual ~Z() {} };
USECLASS(Z)
// User-defined dtor:
// MO1-DAG: define available_externally dllimport x86_thiscallcc void @"\01??1Z@@UAE@XZ"
namespace DontUseDtorAlias {
struct __declspec(dllimport) A { ~A(); };
struct __declspec(dllimport) B : A { ~B(); };
inline A::~A() { }
inline B::~B() { }
// Emit a real definition of B's constructor; don't alias it to A's.
// MO1-DAG: available_externally dllimport x86_thiscallcc void @"\01??1B@DontUseDtorAlias@@QAE@XZ"
USECLASS(B)
}
namespace Vtordisp {
// Don't dllimport the vtordisp.
// MO1-DAG: define weak x86_thiscallcc void @"\01?f@?$C@D@Vtordisp@@$4PPPPPPPM@A@AEXXZ"
class Base {
virtual void f() {}
};
template <typename T>
class __declspec(dllimport) C : virtual public Base {
public:
C() {}
virtual void f() {}
};
template class C<char>;
}