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Date: Wed, 24 Apr 2002 04:23:00 -0000
From: Jan Hubicka <jh@suse.cz>
To: Paolo Carlini <pcarlini@unitus.it>
Cc: Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, gcc@gcc.gnu.org
Subject: Re: C++ aliasing changes on mainline (was: GCC 3.1 Prerelease)
Message-ID: <20020424104145.GA25526@atrey.karlin.mff.cuni.cz>
References: <Pine.BSF.4.44.0204232000250.2524-100000@pulcherrima.dbai.tuwien.ac.at> <3CC68A27.9040007@unitus.it>
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> Gerald Pfeifer wrote:
> 
> >I got mixed results. The binary with the changes above (and all CVS
> >changes between Monday and Tuesday)  was somewhat smaller than the
> >original. Performance didn't change too much, either way.
> >
> Thank you very much Gerald.
> Indeed, I find those numbers very interesting and very puzzling! 
> Definitely I did expect a clear positive effect of the C++ aliasing 
> patch... First, I have to learn more about the main features of such C++ 
> code.
Just note that there has been at least positive change for eon benchmark
on Andreas' SPECint pages (www.suse.de/~aj/SPEC)

Honza
> 
> Ciao, Paolo.
>