On 10/14/2011 05:41 AM, Ian Lance Taylor wrote:
> MikeW <mw_phil@xxxxxxxxxxx> writes:
>
>> volatile register int stop_loop __asm("r5")__;
>
> gcc does not support volatile register variables. I think it could be
> meaningful, but it has never worked.
It would be really nasty to implement: we'd have to check for volatility
on every access to a hard register. The benefits don't seem worth it,
IMO.
Andrew.
