Rafael Espindola | f5fe292 | 2010-12-07 15:23:23 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fsyntax-only -verify %s |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 2 | |
| 3 | // GCC will accept anything as the argument of weakref. Should we |
| 4 | // check for an existing decl? |
| 5 | static int a1() __attribute__((weakref ("foo"))); |
| 6 | static int a2() __attribute__((weakref, alias ("foo"))); |
| 7 | |
| 8 | static int a3 __attribute__((weakref ("foo"))); |
| 9 | static int a4 __attribute__((weakref, alias ("foo"))); |
| 10 | |
| 11 | // gcc rejects, clang accepts |
| 12 | static int a5 __attribute__((alias ("foo"), weakref)); |
| 13 | |
| 14 | // this is pointless, but accepted by gcc. We reject it. |
| 15 | static int a6 __attribute__((weakref)); //expected-error {{weakref declaration of 'a6' must also have an alias attribute}} |
| 16 | |
| 17 | // gcc warns, clang rejects |
| 18 | void f(void) { |
| 19 | static int a __attribute__((weakref ("v2"))); // expected-error {{declaration of 'a' must be in a global context}} |
| 20 | } |
| 21 | |
| 22 | // both gcc and clang reject |
| 23 | class c { |
| 24 | static int a __attribute__((weakref ("v2"))); // expected-error {{declaration of 'a' must be in a global context}} |
| 25 | static int b() __attribute__((weakref ("f3"))); // expected-error {{declaration of 'b' must be in a global context}} |
| 26 | }; |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 27 | int a7() __attribute__((weakref ("f1"))); // expected-error {{weakref declaration must have internal linkage}} |
| 28 | int a8 __attribute__((weakref ("v1"))); // expected-error {{weakref declaration must have internal linkage}} |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 29 | |
| 30 | // gcc accepts this |
Rafael Espindola | 4d8a33b | 2013-01-16 23:49:06 +0000 | [diff] [blame] | 31 | int a9 __attribute__((weakref)); // expected-error {{weakref declaration of 'a9' must also have an alias attribute}} |
| 32 | |
| 33 | static int a10(); |
| 34 | int a10() __attribute__((weakref ("foo"))); |