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From: ami_stuff <ami_stuff@o2.pl>
To: "Paolo Bonzini" <bonzini@gnu.org>
Cc: gcc@gcc.gnu.org
Subject: Re: "-fno-unswitch-loops" option have no effect?
Date: Mon, 17 Aug 2009 16:07:00 -0000	[thread overview]
Message-ID: <30c6dc7a.7a8af09d.4a895c36.c1c89@o2.pl> (raw)
In-Reply-To: <4A895B1A.1010501@gnu.org>

Hi,

> >
> > Here are my results:
> >
> > -m68060 -O3 -fno-unswitch-loops                                                            - 12,9kb
> > -m68060 -O3                                                                                - 12,9kb
> > -m68060 -O2 -finline-functions -fgcse-after-reload -ftree-vectorize -fpredictive-commoning - 12,4kb
> 
> And why do you think that loop unswitching has anything to do with the 
> size growth?

Shouldn't I get the same file sizes with:

-m68060 -O3 -fno-unswitch-loops   

and

-m68060 -O2 -finline-functions -fgcse-after-reload -ftree-vectorize -fpredictive-commoning

?

I don't know, but I think the same optimalizations should be used in these cases, so file size should be the same.
I'm wrong?

  reply	other threads:[~2009-08-17 13:33 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-17  7:19 ami_stuff
     [not found] ` <56d259a00908170344v54442954u3a5d0337de3b98fe@mail.gmail.com>
2009-08-17 13:29   ` ami_stuff
2009-08-17 19:42     ` Bernd Roesch
2009-08-17 19:54       ` ami_stuff
2009-08-17 22:16       ` Alexander Strange
2009-08-17 13:33 ` Richard Guenther
2009-08-17 13:35   ` ami_stuff
2009-08-17 16:01     ` Paolo Bonzini
2009-08-17 16:07       ` ami_stuff [this message]
2009-08-17 16:14         ` Paolo Bonzini

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