Re: port-arm/55239 (_atomic_cas_8_mp broken on evbarm (armv5))

[Rin Okuyama <rokuyama.rk%gmail.com@localhost>]

On 2022/05/16 18:04, Martin Husemann wrote:
> On Sun, May 15, 2022 at 08:17:40PM +0000, skrll%NetBSD.org@localhost wrote:
> > Can this be closed.
> > The code looks OK to me. If someone ever tries to do MP on armv5
> > then maybe it can be revisited
>
> I would be happy with antything that makes the tests pass (they still
> fail, on non-MP armv5).

You mean __sync_{bool,val}_compare_and_swap_1?

https://www.netbsd.org/~martin/evbarm-atf/402_atf.html#lib_libc_atomic_t___sync_compare_and_swap___sync_bool_compare_and_swap_1

This smells like a compiler bug. I was just going to examine this :)
I will send details later...

Thanks,
rin