[Bug c++/114309] Undesirable warning with [[unlikely]]

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114309

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Also this works just fine to disable the warning around the unlikely:
#define push_warning _Pragma("GCC diagnostic push")
#define pop_warning _Pragma("GCC diagnostic pop")
#define disable_warning _Pragma("GCC diagnostic ignored  \"-Wattributes\"")

#define barf(msg) do { push_warning disable_warning [[unlikely]] crash(msg);
pop_warning } while(0)