From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19012 invoked by alias); 30 Mar 2006 16:25:21 -0000 Received: (qmail 18969 invoked by uid 48); 30 Mar 2006 16:25:17 -0000 Date: Thu, 30 Mar 2006 16:25:00 -0000 Message-ID: <20060330162517.18968.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/26944] [4.1/4.2 Regression] -ftree-ch generates worse code In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "rguenth 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/msg02975.txt.bz2 List-Id: ------- Comment #1 from rguenth at gcc dot gnu dot org 2006-03-30 16:25 ------- Note that this may be also PRE confusing SCEV in presence of loop headers. I.e. a sort of dup of PR26939. Confirmed though. A regression from 4.0.3, which is also fine. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- BugsThisDependsOn| |26939 Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 GCC target triplet|i686-pc-linux-gnu | Keywords| |missed-optimization Known to work| |4.0.3 Last reconfirmed|0000-00-00 00:00:00 |2006-03-30 16:25:17 date| | Summary|-ftree-ch generates worse |[4.1/4.2 Regression] -ftree- |code |ch generates worse code http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26944