forked from OSchip/llvm-project
165 lines
8.1 KiB
C
165 lines
8.1 KiB
C
// RUN: %clang_cc1 -triple i686-win32 -fsyntax-only -fms-extensions -verify -std=c99 %s
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// RUN: %clang_cc1 -triple x86_64-win32 -fsyntax-only -fms-extensions -verify -std=c11 %s
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// RUN: %clang_cc1 -triple i686-mingw32 -fsyntax-only -fms-extensions -verify -std=c11 %s
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// RUN: %clang_cc1 -triple x86_64-mingw32 -fsyntax-only -fms-extensions -verify -std=c99 %s
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// Invalid usage.
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__declspec(dllexport) typedef int typedef1;
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// expected-warning@-1{{'dllexport' attribute only applies to functions, variables, classes, and Objective-C interfaces}}
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typedef __declspec(dllexport) int typedef2;
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// expected-warning@-1{{'dllexport' attribute only applies to}}
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typedef int __declspec(dllexport) typedef3;
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// expected-warning@-1{{'dllexport' attribute only applies to}}
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typedef __declspec(dllexport) void (*FunTy)(void);
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// expected-warning@-1{{'dllexport' attribute only applies to}}
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enum __declspec(dllexport) Enum { EnumVal };
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// expected-warning@-1{{'dllexport' attribute only applies to}}
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struct __declspec(dllexport) Record {};
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// expected-warning@-1{{'dllexport' attribute only applies to}}
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//===----------------------------------------------------------------------===//
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// Globals
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//===----------------------------------------------------------------------===//
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// Export declaration.
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__declspec(dllexport) extern int ExternGlobalDecl;
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// dllexport implies a definition.
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__declspec(dllexport) int GlobalDef;
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// Export definition.
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__declspec(dllexport) int GlobalInit1 = 1;
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int __declspec(dllexport) GlobalInit2 = 1;
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// Declare, then export definition.
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__declspec(dllexport) extern int GlobalDeclInit;
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int GlobalDeclInit = 1;
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// Redeclarations
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__declspec(dllexport) extern int GlobalRedecl1;
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__declspec(dllexport) int GlobalRedecl1;
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__declspec(dllexport) extern int GlobalRedecl2;
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int GlobalRedecl2;
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extern int GlobalRedecl3; // expected-note{{previous declaration is here}}
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int useGlobalRedecl3(void) { return GlobalRedecl3; }
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__declspec(dllexport) extern int GlobalRedecl3; // expected-error{{redeclaration of 'GlobalRedecl3' cannot add 'dllexport' attribute}}
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extern int GlobalRedecl4; // expected-note{{previous declaration is here}}
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__declspec(dllexport) extern int GlobalRedecl4; // expected-warning{{redeclaration of 'GlobalRedecl4' should not add 'dllexport' attribute}}
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// External linkage is required.
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__declspec(dllexport) static int StaticGlobal; // expected-error{{'StaticGlobal' must have external linkage when declared 'dllexport'}}
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// Thread local variables are invalid.
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__declspec(dllexport) __thread int ThreadLocalGlobal; // expected-error{{'ThreadLocalGlobal' cannot be thread local when declared 'dllexport'}}
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// Export in local scope.
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void functionScope(void) {
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__declspec(dllexport) int LocalVarDecl; // expected-error{{'LocalVarDecl' must have external linkage when declared 'dllexport'}}
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__declspec(dllexport) int LocalVarDef = 1; // expected-error{{'LocalVarDef' must have external linkage when declared 'dllexport'}}
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__declspec(dllexport) extern int ExternLocalVarDecl;
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__declspec(dllexport) static int StaticLocalVar; // expected-error{{'StaticLocalVar' must have external linkage when declared 'dllexport'}}
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}
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//===----------------------------------------------------------------------===//
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// Functions
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//===----------------------------------------------------------------------===//
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// Export function declaration. Check different placements.
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__attribute__((dllexport)) void decl1A(void); // Basic check with __attribute__
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__declspec(dllexport) void decl1B(void);
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void __attribute__((dllexport)) decl2A(void);
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void __declspec(dllexport) decl2B(void);
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// Export function definition.
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__declspec(dllexport) void def(void) {}
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// Export inline function.
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__declspec(dllexport) inline void inlineFunc1(void) {}
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extern void inlineFunc1(void);
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inline void __attribute__((dllexport)) inlineFunc2(void) {}
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extern void inlineFunc2(void);
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// Redeclarations
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__declspec(dllexport) void redecl1(void);
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__declspec(dllexport) void redecl1(void);
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__declspec(dllexport) void redecl2(void);
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void redecl2(void);
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__declspec(dllexport) void redecl3(void);
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void redecl3(void) {}
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void redecl4(void); // expected-note{{previous declaration is here}}
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void useRedecl4(void) { redecl4(); }
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__declspec(dllexport) void redecl4(void); // expected-error{{redeclaration of 'redecl4' cannot add 'dllexport' attribute}}
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void redecl5(void); // expected-note{{previous declaration is here}}
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void useRedecl5(void) { redecl5(); }
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__declspec(dllexport) inline void redecl5(void) {} // expected-error{{redeclaration of 'redecl5' cannot add 'dllexport' attribute}}
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// Allow with a warning if the decl hasn't been used yet.
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void redecl6(void); // expected-note{{previous declaration is here}}
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__declspec(dllexport) void redecl6(void); // expected-warning{{redeclaration of 'redecl6' should not add 'dllexport' attribute}}
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// External linkage is required.
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__declspec(dllexport) static int staticFunc(void); // expected-error{{'staticFunc' must have external linkage when declared 'dllexport'}}
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// Static locals don't count as having external linkage.
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void staticLocalFunc(void) {
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__declspec(dllexport) static int staticLocal; // expected-error{{'staticLocal' must have external linkage when declared 'dllexport'}}
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}
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//===----------------------------------------------------------------------===//
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// Precedence
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//===----------------------------------------------------------------------===//
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// dllexport takes precedence over dllimport if both are specified.
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__attribute__((dllimport, dllexport)) extern int PrecedenceExternGlobal1A; // expected-warning{{'dllimport' attribute ignored}}
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__declspec(dllimport) __declspec(dllexport) extern int PrecedenceExternGlobal1B; // expected-warning{{'dllimport' attribute ignored}}
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__attribute__((dllexport, dllimport)) extern int PrecedenceExternGlobal2A; // expected-warning{{'dllimport' attribute ignored}}
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__declspec(dllexport) __declspec(dllimport) extern int PrecedenceExternGlobal2B; // expected-warning{{'dllimport' attribute ignored}}
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__attribute__((dllimport, dllexport)) int PrecedenceGlobal1A; // expected-warning{{'dllimport' attribute ignored}}
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__declspec(dllimport) __declspec(dllexport) int PrecedenceGlobal1B; // expected-warning{{'dllimport' attribute ignored}}
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__attribute__((dllexport, dllimport)) int PrecedenceGlobal2A; // expected-warning{{'dllimport' attribute ignored}}
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__declspec(dllexport) __declspec(dllimport) int PrecedenceGlobal2B; // expected-warning{{'dllimport' attribute ignored}}
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__declspec(dllexport) extern int PrecedenceExternGlobalRedecl1;
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__declspec(dllimport) extern int PrecedenceExternGlobalRedecl1; // expected-warning{{'dllimport' attribute ignored}}
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__declspec(dllimport) extern int PrecedenceExternGlobalRedecl2; // expected-warning{{'dllimport' attribute ignored}}
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__declspec(dllexport) extern int PrecedenceExternGlobalRedecl2;
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__declspec(dllexport) extern int PrecedenceGlobalRedecl1;
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__declspec(dllimport) int PrecedenceGlobalRedecl1; // expected-warning{{'dllimport' attribute ignored}}
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__declspec(dllimport) extern int PrecedenceGlobalRedecl2; // expected-warning{{'dllimport' attribute ignored}}
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__declspec(dllexport) int PrecedenceGlobalRedecl2;
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void __attribute__((dllimport, dllexport)) precedence1A(void) {} // expected-warning{{'dllimport' attribute ignored}}
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void __declspec(dllimport) __declspec(dllexport) precedence1B(void) {} // expected-warning{{'dllimport' attribute ignored}}
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void __attribute__((dllexport, dllimport)) precedence2A(void) {} // expected-warning{{'dllimport' attribute ignored}}
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void __declspec(dllexport) __declspec(dllimport) precedence2B(void) {} // expected-warning{{'dllimport' attribute ignored}}
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void __declspec(dllimport) precedenceRedecl1(void); // expected-warning{{'dllimport' attribute ignored}}
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void __declspec(dllexport) precedenceRedecl1(void) {}
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void __declspec(dllexport) precedenceRedecl2(void);
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void __declspec(dllimport) precedenceRedecl2(void) {} // expected-warning{{'dllimport' attribute ignored}}
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