From: Paul Hartman <paul.hartman+gentoo@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Re: -march=auto
Date: Thu, 21 May 2009 14:43:27 -0500 [thread overview]
Message-ID: <58965d8a0905211243h77cdbb0brfc885fc5e02f65b0@mail.gmail.com> (raw)
In-Reply-To: <200905212130.20136.wonko@wonkology.org>
On Thu, May 21, 2009 at 2:30 PM, Alex Schuster <wonko@wonkology.org> wrote:
> Paul Hartman just posted a link to a script that seems to do what I was
> looking for in the "[OT]eee 900a intel atom is what processor family?"
> thread: <http://www.pixelbeat.org/scripts/gcccpuopt>
>
> But it suggests using -march=k8 - isn't that a 64-bit-only thing? I'm not
> compiling for AMD64, I'm still using 32-bit mode. So I have -march=athlon-xp
> in my CFLAGS for my AMD Athlon(tm) Dual Core Processor 4850e CPU.
Hi,
That script says it is specifically for 32-bit only, so I think you
should be good.
According to:
http://gcc.gnu.org/onlinedocs/gcc-4.3.3/gcc/i386-and-x86_002d64-Options.html
It looks like that CPU type supports the amd64 instruction set but I
don't think itt necessarily means you are using it in 64-bit mode. I
think it would just simply not work at all if it's not valid for
32-bit mode.
next prev parent reply other threads:[~2009-05-21 19:43 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-21 2:52 [gentoo-user] [OT]eee 900a intel atom is what processor family? maxim wexler
2009-05-21 7:46 ` Neil Bothwick
2009-05-21 18:41 ` Paul Hartman
2009-05-21 19:08 ` -march=auto (was: Re: [gentoo-user] [OT]eee 900a intel atom is what processor family?) Alex Schuster
2009-05-21 19:30 ` [gentoo-user] Re: -march=auto Alex Schuster
2009-05-21 19:43 ` Paul Hartman [this message]
2009-05-21 22:06 ` Peter Humphrey
2009-05-22 0:25 ` Alex Schuster
2009-05-22 10:21 ` -march=auto (was: Re: [gentoo-user] [OT]eee 900a intel atom is what processor family?) Daniel Iliev
2009-05-22 21:44 ` [gentoo-user] Re: -march=auto Alex Schuster
-- strict thread matches above, loose matches on Subject: below --
2009-05-22 17:36 maxim wexler
2009-05-22 21:36 ` ABCD
2009-05-22 21:53 ` Alex Schuster
2009-05-22 23:55 maxim wexler
2009-05-23 2:21 ` Alex Schuster
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