From: Paolo Bonzini <bonzini@gnu.org>
To: ami_stuff <ami_stuff@o2.pl>
Cc: gcc@gcc.gnu.org
Subject: Re: "-fno-unswitch-loops" option have no effect?
Date: Mon, 17 Aug 2009 16:14:00 -0000 [thread overview]
Message-ID: <4A895C7F.5040003@gnu.org> (raw)
In-Reply-To: <30c6dc7a.7a8af09d.4a895c36.c1c89@o2.pl>
On 08/17/2009 03:33 PM, ami_stuff wrote:
> -m68060 -O3 -fno-unswitch-loops
>
> and
>
> -m68060 -O2 -finline-functions -fgcse-after-reload -ftree-vectorize -fpredictive-commoning
Some heuristics are tuned differently for -O2 and -O3. The only way to
know is to look at the dumps.
Paolo
prev parent reply other threads:[~2009-08-17 13:35 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
2009-08-17 16:14 ` Paolo Bonzini [this message]
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