From:	nikki AT gameboutique DOT co (nikki)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Loop unrolling: Don't bother
Date:	1 Mar 1997 10:20:14 GMT
Organization:	GameBoutique Ltd.
Lines:	14
Message-ID:	<5f8vsu$g84@flex.uunet.pipex.com>
References:	<5f5knj$cho AT freenet-news DOT carleton DOT ca>
	<01bc252e$b1edb440$82081ecb AT sly>
NNTP-Posting-Host:	www.gameboutique.com
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

> Is it possible that with the -O3 option, the compiler sees that these are
> indeed constant iteration loops, and unrolls them itself?  Try it with -O0
> option, because this should turn off all optimisation.  -O3 is the highest
> level of optimisation available.

i'm fairly sure o3 doesn't unroll loops, or at least it's never unrolled any
of mine ;) you can also use o4 no? at least i thought you could..

regards,
nik

-- 
Graham Tootell           
nikki AT gameboutique DOT com  

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