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Date: Mon, 2 Sep 2002 05:16:56 -0700 (PDT)
From: magudexter <magudexter@yahoo.com>
Subject: Re: k6 or i686 optimization on AMD Athlon? 
To: Gary Jennejohn <garyj@jennejohn.org>
Cc: freebsd-questions@freebsd.org
In-Reply-To: <200209021205.g82C5f0O087599@peedub.jennejohn.org>
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Okay, but when will the gcc3.21 make it into the
stable release? And until then, for the gcc-2.95.3
(the one found in the stable version) what setting you
know works better:
i686 or k6?

--- Gary Jennejohn <garyj@jennejohn.org> wrote:
> magudexter writes:
> > I recently purchase a AMD XP processor belonging
> to
> > the k7 family. Even though the
> /etc/default/make.conf
> > mentions the k7 processor in CPUTYPE the cc
> compiler
> > know only k6 and i686(alias pentiumpro).
> > 
> > Every build using the make.conf with the
> CPUTYPE=k7
> > make actually a build with march=k6(which belongs
> to
> > i586 family). 
> > 
> 
> Support for Athlons depends on the compiler version.
> gcc-3.2, just
> imported to -current, has:
> 
>
march=athlon|march=athlon-tbird|march=athlon-4|march=athlon-xp
>
mcpu=athlon|mcpu=athlon-tbird|mcpu=athlon-4|mcpu=athlon-xp|mcpu=athlon-mp
> 
> If you're using an older version of gcc (like 2.95),
> then the Athlon
> is not explicitly supported.
> 
> ---
> Gary Jennejohn / garyj@jennejohn.org gj@freebsd.org
> gj@denx.de
> 


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