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Diffstat (limited to 'clang/test/SemaCXX/attr-weakref.cpp')
| -rw-r--r-- | clang/test/SemaCXX/attr-weakref.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/attr-weakref.cpp b/clang/test/SemaCXX/attr-weakref.cpp new file mode 100644 index 0000000..a345791 --- /dev/null +++ b/clang/test/SemaCXX/attr-weakref.cpp @@ -0,0 +1,31 @@ +// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fsyntax-only -verify %s + +// GCC will accept anything as the argument of weakref. Should we +// check for an existing decl? +static int a1() __attribute__((weakref ("foo"))); +static int a2() __attribute__((weakref, alias ("foo"))); + +static int a3 __attribute__((weakref ("foo"))); +static int a4 __attribute__((weakref, alias ("foo"))); + +// gcc rejects, clang accepts +static int a5 __attribute__((alias ("foo"), weakref)); + +// this is pointless, but accepted by gcc. We reject it. +static int a6 __attribute__((weakref)); //expected-error {{weakref declaration of 'a6' must also have an alias attribute}} + +// gcc warns, clang rejects +void f(void) { + static int a __attribute__((weakref ("v2"))); // expected-error {{declaration of 'a' must be in a global context}} +} + +// both gcc and clang reject +class c { + static int a __attribute__((weakref ("v2"))); // expected-error {{declaration of 'a' must be in a global context}} + static int b() __attribute__((weakref ("f3"))); // expected-error {{declaration of 'b' must be in a global context}} +}; +int a7() __attribute__((weakref ("f1"))); // expected-error {{weakref declaration must have internal linkage}} +int a8 __attribute__((weakref ("v1"))); // expected-error {{weakref declaration must have internal linkage}} + +// gcc accepts this +int a9 __attribute__((weakref)); // expected-error {{weakref declaration must have internal linkage}} |