1*67e74705SXin Li // RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fsyntax-only -verify -std=c++11 %s 2*67e74705SXin Li 3*67e74705SXin Li // GCC will accept anything as the argument of weakref. Should we 4*67e74705SXin Li // check for an existing decl? 5*67e74705SXin Li static int a1() __attribute__((weakref ("foo"))); 6*67e74705SXin Li static int a2() __attribute__((weakref, alias ("foo"))); 7*67e74705SXin Li 8*67e74705SXin Li static int a3 __attribute__((weakref ("foo"))); 9*67e74705SXin Li static int a4 __attribute__((weakref, alias ("foo"))); 10*67e74705SXin Li 11*67e74705SXin Li // gcc rejects, clang accepts 12*67e74705SXin Li static int a5 __attribute__((alias ("foo"), weakref)); 13*67e74705SXin Li 14*67e74705SXin Li // this is pointless, but accepted by gcc. We reject it. 15*67e74705SXin Li static int a6 __attribute__((weakref)); //expected-error {{weakref declaration of 'a6' must also have an alias attribute}} 16*67e74705SXin Li 17*67e74705SXin Li // gcc warns, clang rejects f(void)18*67e74705SXin Livoid f(void) { 19*67e74705SXin Li static int a __attribute__((weakref ("v2"))); // expected-error {{declaration of 'a' must be in a global context}} 20*67e74705SXin Li } 21*67e74705SXin Li 22*67e74705SXin Li // both gcc and clang reject 23*67e74705SXin Li class c { 24*67e74705SXin Li static int a __attribute__((weakref ("v2"))); // expected-error {{declaration of 'a' must be in a global context}} 25*67e74705SXin Li static int b() __attribute__((weakref ("f3"))); // expected-error {{declaration of 'b' must be in a global context}} 26*67e74705SXin Li }; 27*67e74705SXin Li int a7() __attribute__((weakref ("f1"))); // expected-error {{weakref declaration must have internal linkage}} 28*67e74705SXin Li int a8 __attribute__((weakref ("v1"))); // expected-error {{weakref declaration must have internal linkage}} 29*67e74705SXin Li 30*67e74705SXin Li // gcc accepts this 31*67e74705SXin Li int a9 __attribute__((weakref)); // expected-error {{weakref declaration of 'a9' must also have an alias attribute}} 32*67e74705SXin Li 33*67e74705SXin Li static int a10(); 34*67e74705SXin Li int a10() __attribute__((weakref ("foo"))); 35*67e74705SXin Li 36*67e74705SXin Li static int v __attribute__((weakref(a1), alias("foo"))); // expected-error {{'weakref' attribute requires a string}} 37*67e74705SXin Li 38*67e74705SXin Li __attribute__((weakref ("foo"))) auto a11 = 1; // expected-error {{weakref declaration must have internal linkage}} 39