[PATCH v2] Revert __HAVE_64B_ATOMICS configure check

[H.J. Lu]

On Fri, Nov 14, 2025 at 6:42 AM Wilco Dijkstra <Wilco.Dijkstra@arm.com> wrote:
>
> Hi HJ,
>
> > This is wrong for x32 which has 64-bit atomic and __WORDSIZE == 32.
>
> Why would it be wrong? If 'long' is 4-byte aligned, it has the same issue

Did you mean "long long"?  On x32, long is 4-byte.


> as 32-bit x86. You need full support for unaligned 64-bit atomics before
> you can turn it on.

The only difference between x32 and x86-64 is the size of long.  If
x86-64 supports 64-bit atomics, so does x32.

> Cheers,
> Wilco



-- 
H.J.