On Mon, Jan 30, 2006 at 08:50:00AM +1030, Aluminium Oxide wrote: > Awwww... > > You're right, but there's only a handlful of these that stop buildworld > with -O3....
I think the issue is that although you may be able to get FreeBSD to *build* using -O3, it's quite unlikely that it will *work* properly. If I understand correctly, gcc -O3 makes a lot of assumptions about when it's OK to keep values around in registers, which may not be valid when there are interrupts or other threads modifying memory. I think it's possible to make the code -O3 safe, e.g. by putting loads of 'volatile' declarations in, but catching every single case where this is required is extremely different. This may be more of a problem with the kernel than with userland though. Regards, Brian. _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
