From: Peter Bergner <bergner@vnet.ibm.com>
To: gcc-patches@gcc.gnu.org
Subject: Re: [PATCH] PR35371 GCSE loses track of REG_POINTER attribute
Date: Mon, 25 Feb 2008 23:13:00 -0000 [thread overview]
Message-ID: <1203978585.21677.52.camel@otta> (raw)
In-Reply-To: <20080225222624.GA26857@vervain.rchland.ibm.com>
On Mon, 2008-02-25 at 16:26 -0600, Peter Bergner wrote:
> While tracking down an unrelated performance problem, I noticed that
> for the following simple loop, we generate indexed form stores and that
> we get the ordering of the operands wrong which causes a slowdown on
> POWER6 (see PR28690 for more details). The culprit here is GCSE.
Sorry, I forgot to show the loop. It's posted in the PR though:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35371
Peter
next prev parent reply other threads:[~2008-02-25 22:30 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-25 22:30 Peter Bergner
2008-02-25 23:13 ` Peter Bergner [this message]
2008-02-26 5:25 ` [PATCH,updated] " Peter Bergner
2008-02-26 5:49 ` [PATCH,withdrawn] " Peter Bergner
2008-02-26 18:00 ` [PATCH] " Richard Sandiford
2008-02-26 19:04 ` Peter Bergner
2008-02-26 19:45 ` Richard Sandiford
2008-02-26 20:06 ` Jeff Law
2008-02-29 1:32 ` Peter Bergner
2008-03-03 19:17 ` Jeff Law
2008-03-03 19:42 ` Peter Bergner
2008-03-03 20:55 ` Jeff Law
2008-03-10 15:32 ` [PING H.J. Lu] " Peter Bergner
2008-03-10 16:22 ` H.J. Lu
2008-03-12 14:48 ` H.J. Lu
2008-03-17 14:32 ` H.J. Lu
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