From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29251 invoked by alias); 4 Apr 2004 16:45:13 -0000 Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org Received: (qmail 29244 invoked from network); 4 Apr 2004 16:45:12 -0000 Received: from unknown (HELO smtp1.fuse.net) (216.68.8.171) by sources.redhat.com with SMTP; 4 Apr 2004 16:45:12 -0000 Received: from dellpi.pinski.fam ([66.161.190.207]) by smtp1.fuse.net (InterMail vM.6.00.05.02 201-2115-109-103-20031105) with ESMTP id <20040404164510.XTVP2042.smtp1.fuse.net@dellpi.pinski.fam>; Sun, 4 Apr 2004 12:45:10 -0400 Received: from [127.0.0.1] (IDENT:pinskia@localhost.pinski.fam [127.0.0.1]) by dellpi.pinski.fam (8.12.2/8.12.1) with ESMTP id i34Gj9xj003036; Sun, 4 Apr 2004 12:45:10 -0400 (EDT) In-Reply-To: <4070144F.2070402@tat.physik.uni-tuebingen.de> References: <406F236A.70901@tat.physik.uni-tuebingen.de> <1382219C-85B1-11D8-BD72-000393A6D2F2@physics.uc.edu> <4070144F.2070402@tat.physik.uni-tuebingen.de> Mime-Version: 1.0 (Apple Message framework v613) Content-Type: text/plain; charset=US-ASCII; format=flowed Message-Id: <6ED549FC-8657-11D8-B4F3-000393A6D2F2@physics.uc.edu> Content-Transfer-Encoding: 7bit Cc: "gcc@gcc.gnu.org" , Andrew Pinski From: Andrew Pinski Subject: Re: 3.4 / 3.5 / tree-ssa comparisons Date: Sun, 04 Apr 2004 16:45:00 -0000 To: Richard Guenther X-SW-Source: 2004-04/txt/msg00192.txt.bz2 On Apr 4, 2004, at 09:57, Richard Guenther wrote: > Runtime is 7.73s/it compared to 7.64s/it beforer. > So it's not helping, but instead pessimizing slightly!? This does not make sense because I looked into the tree dumps for this code and it looked like it would improve it and not hurt it. But there is another patch which is in the works which should also help but only in combination with the patch which you tested. Also I was still getting cast removals which should make SRA do its work, but we would have to run aliasing again and do DOM another time after this second aliasing run so the compile time will/should go up. Also I did a compile time comparison with and without this cast patch on PR8361, and the patch was a win in compile time by 2 seconds out of a run of 40 seconds so an improvement of 5%, maybe adding the leafy patch you will see that this patch helps more than what you have looked at so far. Thanks, Andrew Pinski