1 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -fsyntax-only -verify %s 2 3 /// Prevent use of all builtins. valid_attribute_all_1()4void valid_attribute_all_1() __attribute__((no_builtin)) {} valid_attribute_all_2()5void valid_attribute_all_2() __attribute__((no_builtin())) {} 6 7 /// Prevent use of specific builtins. valid_attribute_function()8void valid_attribute_function() __attribute__((no_builtin("memcpy"))) {} valid_attribute_functions()9void valid_attribute_functions() __attribute__((no_builtin("memcpy"))) __attribute__((no_builtin("memcmp"))) {} 10 11 /// Many times the same builtin is fine. many_attribute_function_1()12void many_attribute_function_1() __attribute__((no_builtin)) __attribute__((no_builtin)) {} many_attribute_function_2()13void many_attribute_function_2() __attribute__((no_builtin("memcpy"))) __attribute__((no_builtin("memcpy"))) {} many_attribute_function_3()14void many_attribute_function_3() __attribute__((no_builtin("memcpy", "memcpy"))) {} many_attribute_function_4()15void many_attribute_function_4() __attribute__((no_builtin("memcpy", "memcpy"))) __attribute__((no_builtin("memcpy"))) {} 16 17 /// Invalid builtin name. invalid_builtin()18void invalid_builtin() __attribute__((no_builtin("not_a_builtin"))) {} 19 // expected-warning@-1 {{'not_a_builtin' is not a valid builtin name for 'no_builtin'}} 20 21 /// Can't use bare no_builtin with a named one. wildcard_and_functionname()22void wildcard_and_functionname() __attribute__((no_builtin)) __attribute__((no_builtin("memcpy"))) {} 23 // expected-error@-1 {{empty 'no_builtin' cannot be composed with named ones}} 24 25 /// Can't attach attribute to a variable. 26 int __attribute__((no_builtin)) variable; 27 // expected-warning@-1 {{'no_builtin' attribute only applies to functions}} 28 29 /// Can't attach attribute to a declaration. 30 void nobuiltin_on_declaration() __attribute__((no_builtin)); 31 // expected-error@-1 {{no_builtin attribute is permitted on definitions only}} 32 33 struct S { 34 /// Can't attach attribute to a defaulted function, 35 S() 36 __attribute__((no_builtin)) = default; 37 // expected-error@-1 {{no_builtin attribute has no effect on defaulted or deleted functions}} 38 39 /// Can't attach attribute to a deleted function, 40 S(const S &) 41 __attribute__((no_builtin)) = delete; 42 // expected-error@-1 {{no_builtin attribute has no effect on defaulted or deleted functions}} 43 44 void whatever() __attribute__((no_builtin("memcpy"))); 45 // expected-error@-1 {{no_builtin attribute is permitted on definitions only}} 46 }; 47 48 /// Can't attach attribute to an aliased function. alised_function()49void alised_function() {} 50 void aliasing_function() __attribute__((no_builtin)) __attribute__((alias("alised_function"))); 51 // expected-error@-1 {{no_builtin attribute is permitted on definitions only}} 52