From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 20805 invoked by alias); 10 Mar 2006 14:10:13 -0000 Received: (qmail 20772 invoked by uid 48); 10 Mar 2006 14:10:11 -0000 Date: Fri, 10 Mar 2006 14:10:00 -0000 Message-ID: <20060310141011.20771.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug rtl-optimization/21485] [4.0/4.1/4.2 Regression] codegen regression due to PRE increasing register pressure In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "pinskia at gcc dot gnu dot org" 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 X-SW-Source: 2006-03/txt/msg01048.txt.bz2 List-Id: ------- Comment #18 from pinskia at gcc dot gnu dot org 2006-03-10 14:10 ------- (In reply to comment #17) > What happens to the time if you replace that function with: This helps about 5% but it does not get the score back up. 3.4.0's score for this machine is about 900. 4.1.0's score is 720. 4.1.0+scource modification is about 780. so it helps but there is something else which needs to be improved still. I don't think this is a RA issue now after looking into the source. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords|ra | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21485