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From: "Alinabi" <alexander.the.average@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: GNAT compiler switches and optimization
Date: 23 Oct 2006 09:32:24 -0700
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I did, and it made no difference. I think no loop unrolling is done in
the part of the code which is being timed, as the number of iterations
is not known at compile time.

Gautier wrote:
> Alinabi:
>
> > -g -march=opteron -mtune=opteron -mfpmath=sse -fomit-frame-pointer -O2
> > -fdump-tree-optimized
> 
> Did you give -funroll-loops a try ?
> 
> G.