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Date:      Thu, 14 Sep 2006 10:07:35 +1000
From:      Tony Maher <anthony.maher@uts.edu.au>
To:        Gary Kline <kline@sage.thought.org>
Cc:        freebsd-stable@freebsd.org, Stefan Lambrev <stefan.lambrev@sun-fish.com>
Subject:   Re: optimization levels for 6-STABLE build{kernel,world}
Message-ID:  <45089D47.6070005@uts.edu.au>
In-Reply-To: <20060913234934.GA92067@thought.org>
References:  <200609130905.k8D95idk062789@lurza.secnetix.de> <4507CC9B.60704@sun-fish.com> <20060913234934.GA92067@thought.org>

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Gary Kline wrote:

> <deleted>
>
> 	A couple of things.  Will having gcc unroll loops have any
> 	negative consequences?  (I can't imagine how:: but better 
> 	informed than to have something crash inexplicability.)
> 	With 6.X safe at -O2 and with -funroll-loops, that should be
> 	a slight gain, right?  (It also will make an upgrade from 5.5 
> 	to 6.[12] that much more rational.)

-funroll-loops affect loader see
http://lists.freebsd.org/pipermail/freebsd-stable/2006-September/028145.html

--
tonym



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