1*67e74705SXin Li // RUN: %clang_cc1 -triple x86_64-unknown-unknown -std=c++11 -verify %s 2*67e74705SXin Li 3*67e74705SXin Li // Error cases. 4*67e74705SXin Li 5*67e74705SXin Li [[gnu::this_attribute_does_not_exist]] int unknown_attr; 6*67e74705SXin Li // expected-warning@-1 {{unknown attribute 'this_attribute_does_not_exist' ignored}} 7*67e74705SXin Li int [[gnu::unused]] attr_on_type; 8*67e74705SXin Li // expected-error@-1 {{'unused' attribute cannot be applied to types}} 9*67e74705SXin Li int *[[gnu::unused]] attr_on_ptr; 10*67e74705SXin Li // expected-warning@-1 {{attribute 'unused' ignored, because it cannot be applied to a type}} 11*67e74705SXin Li [[gnu::fastcall]] void pr17424_1(); 12*67e74705SXin Li // expected-warning@-1 {{calling convention 'fastcall' ignored for this target}} 13*67e74705SXin Li [[gnu::fastcall]] [[gnu::stdcall]] void pr17424_2(); 14*67e74705SXin Li // expected-warning@-1 {{calling convention 'fastcall' ignored for this target}} 15*67e74705SXin Li // expected-warning@-2 {{calling convention 'stdcall' ignored for this target}} 16*67e74705SXin Li [[gnu::fastcall]] __stdcall void pr17424_3(); 17*67e74705SXin Li // expected-warning@-1 {{calling convention 'fastcall' ignored for this target}} 18*67e74705SXin Li // expected-warning@-2 {{calling convention '__stdcall' ignored for this target}} 19*67e74705SXin Li [[gnu::fastcall]] void pr17424_4() [[gnu::stdcall]]; 20*67e74705SXin Li // expected-warning@-1 {{calling convention 'fastcall' ignored for this target}} 21*67e74705SXin Li // expected-warning@-2 {{attribute 'stdcall' ignored, because it cannot be applied to a type}} 22*67e74705SXin Li // expected-warning@-3 {{calling convention 'stdcall' ignored for this target}} 23*67e74705SXin Li void pr17424_5 [[gnu::fastcall]](); 24*67e74705SXin Li // expected-warning@-1 {{calling convention 'fastcall' ignored for this target}} 25*67e74705SXin Li 26*67e74705SXin Li // Valid cases. 27*67e74705SXin Li 28*67e74705SXin Li void aliasb [[gnu::alias("_Z6alias1v")]] (); alias1()29*67e74705SXin Livoid alias1() {} 30*67e74705SXin Li void aliasa [[gnu::alias("_Z6alias1v")]] (); 31*67e74705SXin Li 32*67e74705SXin Li extern struct PR22493Ty { 33*67e74705SXin Li } PR22493 [[gnu::alias("_ZN7pcrecpp2RE6no_argE")]]; 34*67e74705SXin Li 35*67e74705SXin Li [[gnu::aligned(8)]] int aligned; 36*67e74705SXin Li void aligned_fn [[gnu::aligned(32)]] (); 37*67e74705SXin Li struct [[gnu::aligned(8)]] aligned_struct {}; 38*67e74705SXin Li 39*67e74705SXin Li void always_inline [[gnu::always_inline]] (); 40*67e74705SXin Li 41*67e74705SXin Li __thread int tls_model [[gnu::tls_model("local-exec")]]; 42*67e74705SXin Li cleanup(int * p)43*67e74705SXin Livoid cleanup(int *p) { 44*67e74705SXin Li int n [[gnu::cleanup(cleanup)]]; 45*67e74705SXin Li } 46*67e74705SXin Li 47*67e74705SXin Li void deprecated1 [[gnu::deprecated]] (); // expected-note {{here}} 48*67e74705SXin Li [[gnu::deprecated("custom message")]] void deprecated2(); // expected-note {{here}} deprecated3()49*67e74705SXin Livoid deprecated3() { 50*67e74705SXin Li deprecated1(); // expected-warning {{deprecated}} 51*67e74705SXin Li deprecated2(); // expected-warning {{custom message}} 52*67e74705SXin Li } 53*67e74705SXin Li 54*67e74705SXin Li [[gnu::naked(1,2,3)]] void naked(); // expected-error {{takes no arguments}} 55*67e74705SXin Li 56*67e74705SXin Li void nonnull [[gnu::nonnull]] (); // expected-warning {{applied to function with no pointer arguments}} 57*67e74705SXin Li 58*67e74705SXin Li // [[gnu::noreturn]] appertains to a declaration, and marks the innermost 59*67e74705SXin Li // function declarator in that declaration as being noreturn. 60*67e74705SXin Li int noreturn [[gnu::noreturn]]; // expected-warning {{'noreturn' only applies to function types}} 61*67e74705SXin Li int noreturn_fn_1(); 62*67e74705SXin Li int noreturn_fn_2() [[gnu::noreturn]]; // expected-warning {{cannot be applied to a type}} 63*67e74705SXin Li int noreturn_fn_3 [[gnu::noreturn]] (); 64*67e74705SXin Li [[gnu::noreturn]] int noreturn_fn_4(); 65*67e74705SXin Li int (*noreturn_fn_ptr_1 [[gnu::noreturn]])() = &noreturn_fn_1; // expected-error {{cannot initialize}} 66*67e74705SXin Li int (*noreturn_fn_ptr_2 [[gnu::noreturn]])() = &noreturn_fn_3; 67*67e74705SXin Li [[gnu::noreturn]] int (*noreturn_fn_ptr_3)() = &noreturn_fn_1; // expected-error {{cannot initialize}} 68*67e74705SXin Li [[gnu::noreturn]] int (*noreturn_fn_ptr_4)() = &noreturn_fn_3; 69*67e74705SXin Li 70*67e74705SXin Li struct [[gnu::packed]] packed { char c; int n; }; 71*67e74705SXin Li static_assert(sizeof(packed) == sizeof(char) + sizeof(int), "not packed"); 72