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Mail Archives: djgpp/2000/03/08/15:53:20

Sender: root AT delorie DOT com
Message-ID: <38C6B414.2D67E404@inti.gov.ar>
Date: Wed, 08 Mar 2000 17:12:04 -0300
From: salvador <salvador AT inti DOT gov DOT ar>
Organization: INTI
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To: djgpp AT delorie DOT com
Subject: Re: [long] gcc performance and possible bug
References: <Pine DOT SUN DOT 3 DOT 91 DOT 1000307103019 DOT 21628J-100000 AT is> <8a65uu$39fkt$1 AT fu-berlin DOT de>
Reply-To: djgpp AT delorie DOT com

Dieter Buerssner wrote:

> and running a.exe, then uncomment the const close to the end
> of the listing and recompile and rerun. Please post or mail your
> results, maybe including your processor and versions of gcc and
> binutils (I have AMD K6-2,

K6 CPUs have a "bug" related to aligment. If some memory address is in a
0xNNNNNC, you'll have a big penalty to read it. 0, 4 and 8 are ok,
but C is the worst case (by far), double check you are not hiting this
limitation.

SET

--
Salvador Eduardo Tropea (SET). (Electronics Engineer)
Visit my home page: http://welcome.to/SetSoft or
http://www.geocities.com/SiliconValley/Vista/6552/
Alternative e-mail: set-soft AT usa DOT net set AT computer DOT org
                    set AT ieee DOT org set-soft AT bigfoot DOT com
Address: Curapaligue 2124, Caseros, 3 de Febrero
Buenos Aires, (1678), ARGENTINA Phone: +(5411) 4759 0013



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