1// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fsyntax-only -verify -std=c++11 %s
2
3// GCC will accept anything as the argument of weakref. Should we
4// check for an existing decl?
5static int a1() __attribute__((weakref ("foo")));
6static int a2() __attribute__((weakref, alias ("foo")));
7
8static int a3 __attribute__((weakref ("foo")));
9static int a4 __attribute__((weakref, alias ("foo")));
10
11// gcc rejects, clang accepts
12static int a5 __attribute__((alias ("foo"), weakref));
13
14// this is pointless, but accepted by gcc. We reject it.
15static int a6 __attribute__((weakref)); //expected-error {{weakref declaration of 'a6' must also have an alias attribute}}
16
17// gcc warns, clang rejects
18void 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
23class 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};
27int a7() __attribute__((weakref ("f1"))); // expected-error {{weakref declaration must have internal linkage}}
28int a8 __attribute__((weakref ("v1"))); // expected-error {{weakref declaration must have internal linkage}}
29
30// gcc accepts this
31int a9 __attribute__((weakref));  // expected-error {{weakref declaration of 'a9' must also have an alias attribute}}
32
33static int a10();
34int a10() __attribute__((weakref ("foo")));
35
36static int v __attribute__((weakref(a1), alias("foo"))); // expected-error {{'weakref' attribute requires a string}}
37
38__attribute__((weakref ("foo"))) auto a11 = 1; // expected-error {{weakref declaration must have internal linkage}}
39