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Date:      Sun, 28 Oct 2001 08:37:35 -0600
From:      mikea <mikea@mikea.ath.cx>
To:        chip@chocobo.cx
Cc:        sobomax@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG, freebsd-current@FreeBSD.ORG
Subject:   Re: adding athlon xp to bsd.cpu.mk
Message-ID:  <20011028083735.B8778@mikea.ath.cx>
In-Reply-To: <20011028014905.A55998@setzer.chocobo.cx>; from chip@setzer.chocobo.cx on Sun, Oct 28, 2001 at 01:49:05AM -0500
References:  <200110280030.f9S0UfW82593@gits.dyndns.org> <E15xhi2-0002de-00@smtp4.port.ru> <20011028014905.A55998@setzer.chocobo.cx>

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On Sun, Oct 28, 2001 at 01:49:05AM -0500, Chip Marshall wrote:

> Couldn't a test be done on the Features information of the processor
> to determine the best optimizations? Or would that break
> cross-compiliation of optimized code?

So I compile something on my AMD box which I expect to run
only on my P-III or P-IV box. The program is optimized for the
AMD processor. This is _not_ what I would want. Ditto for the
converse case.

IMHO, the control needs to be in environment variables and/or
in parameters passed to the compiler somehow.

-- 
Mike Andrews
mikea@mikea.ath.cx
Tired old sysadmin since 1964

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