https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110061
--- Comment #13 from Wilco <wilco at gcc dot gnu.org> ---
(In reply to Xi Ruoyao from comment #12)
> (In reply to Wilco from comment #11)
>
> > > Then the compiler (and the standard) is not what they consider. Such
> > > misunderstandings are everywhere and this has no difference.
> >
> > Where is int128 in "the standard"?
>
> Consider this:
>
> const _Atomic long double x = 0.1;
>
> int main()
> {
> double y = x;
> return y != 0.1;
> }
>
> If CAS is used here, the program will just segfault. Does the standard say
> this is ill-formed or not?
I'd say this is ill formed yes. And it will crash on Atom laptops.
