On Wednesday 31 May 2006 11:52, Ralph Slooten wrote:
>
> > -march=athlon64 implies -msse2, all amd64 cpus have sse2 support.
and some have even sse3 (E6)
> > Also -ftracer is not in the safe cflags list, personally I would not use
> > it but if you believe it benefits you then go ahead.
>
> Another handy tip. Can't remember why I had it (did the "research" when
> I reinstalled it 32bit). I'll remove it too.
ftracer is harmless.
>From man gcc:
-ftracer
Perform tail duplication to enlarge superblock size. This trans-
formation simplifies the control flow of the function allowing
other optimizations to do better job.
--
gentoo-user@gentoo.org mailing list
