[csw-maintainers] gcc __sync_fetch_and_add revisited

[Philip Brown]

On Sun, May 8, 2011 at 12:00 PM, Ben Walton <bwalton at opencsw.org> wrote:
>
> Does this all sound reasonable?
>
> If this is the case, we should likely have gcc4 rebuilt with different
> flags so that it's base is v8.
>

yes that sounds like what happened... however.... we should also make
it so that the library actually uses the extra functionality on v9.
atomic-add is pretty important for good performance.
we can't NOT support it, on the better cpus.

reminder: this can be done with AUX_FILTERs, perhaps.