From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3841 invoked by alias); 8 Jun 2005 09:38:53 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 3790 invoked by uid 48); 8 Jun 2005 09:38:42 -0000 Date: Wed, 08 Jun 2005 09:38:00 -0000 Message-ID: <20050608093842.3789.qmail@sourceware.org> From: "steven at gcc dot gnu dot org" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20041221015654.19097.phython@gcc.gnu.org> References: <20041221015654.19097.phython@gcc.gnu.org> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug rtl-optimization/19097] [3.4/4.0/4.1 regression] Quadratic behavior with many sets for the same register in gcse CPROP X-Bugzilla-Reason: CC X-SW-Source: 2005-06/txt/msg01178.txt.bz2 List-Id: ------- Additional Comments From steven at gcc dot gnu dot org 2005-06-08 09:38 ------- Can you try and figure out which patch changed this for GCC 4.1? Bonus points if you can see if backporting that patch gives GCC 4.0 a speed-up, because in that case you may have something to go to Mark with for the next GCC 4.0.x (x>1) release ;-) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19097