https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103069
--- Comment #19 from Hongyu Wang <wwwhhhyyy333 at gmail dot com> ---
(In reply to Thiago Macieira from comment #18)
> (In reply to Jakub Jelinek from comment #17)
> > _Pragma("GCC target \"relax-cmpxchg-loop\"")
> > should do that (ditto target("relax-cmpxchg-loop") attribute).
>
> The attribute is applied to a function. I'm hoping to do it for s block of
> code:
>
> _Pragma("GCC push_options")
> _Pragma("GCC target \"relax-cmpxchg-loop\"")
> __atomic_compare_exchange_weak(....);
> _Pragma("GCC pop_options")
I'm not aware of any target __attribute__ or #Pragma can be used to code block,
at this level user can change their code directly, so I don't know why it is
needed..
