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Date:      Wed, 6 Nov 1996 09:48:29 -0800 (PST)
From:      "Eric J. Schwertfeger" <ejs@bfd.com>
To:        Softweyr LLC <softweyr@xmission.com>
Cc:        chat@freebsd.org
Subject:   Re: Positive note on XFree86
Message-ID:  <Pine.BSF.3.95.961106094532.11690A-100000@harlie>
In-Reply-To: <199611061727.KAA00752@xmission.xmission.com>

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On Wed, 6 Nov 1996, Softweyr LLC wrote:

>  >  I Pentium optimized it on the
>  > standard GCC 2.7.2.1 with the following C compiler optimizations:
>  > 
>  > -O2 -malign-loops=0 -malign-jumps=0
> 
> Why, exactly, are you *maligning* loops and jumps?  They seem like like
> perfectly normal programming constructs to me.  ;^)

When compiling with -m486, gcc pads loop and other program structures to
better take advantage of the 486 cache and memory interface.  The P5 cache
and memory interface doesn't benefit from this, so he's turning it back
off.

Of course, I could be partially or even totally wrong.




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