Message-ID: <19991101173822.48432@atrey.karlin.mff.cuni.cz>
Date: Mon, 1 Nov 1999 17:38:22 +0100
From: Jan Hubicka <hubicka AT atrey DOT karlin DOT mff DOT cuni DOT cz>
To: pgcc AT delorie DOT com
Subject: Re: Optimization difference between CPUs?
References: <19991101144102 DOT BGEC5192 DOT mail DOT rdc1 DOT il DOT home DOT com AT mercury DOT snydernet DOT lan>
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In-Reply-To: <19991101144102.BGEC5192.mail.rdc1.il.home.com@mercury.snydernet.lan>; from Steve Snyder on Mon, Nov 01, 1999 at 09:41:04AM -0500
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> Is there any documentation on the the different optimizations used for
> different CPUs by pgcc/gcc v2.95.x?
> 
> Specifically, I'm wondering what the practical distinction is between 
> -mcpu=i586 and -mcpu=k6 code generation.
Yes, it is.
GCC does scheduling for each CPU and is able to do some other optimizations
as well (use mov $0, reg instead of xor reg, reg on K6 etc.)

Honza
> 
> Thank you.
> 
> 
> *** Steve Snyder ***

-- 
                       OK. Lets make a signature file.
+-------------------------------------------------------------------------+
|        Jan Hubicka (Jan Hubi\v{c}ka in TeX) hubicka AT freesoft DOT cz         |
|         Czech free software foundation: http://www.freesoft.cz          |
|AA project - the new way for computer graphics - http://www.ta.jcu.cz/aa |
|  homepage: http://www.paru.cas.cz/~hubicka/, games koules, Xonix, fast  |
|  fractal zoomer XaoS, index of Czech GNU/Linux/UN*X documentation etc.  | 
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