From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25532 invoked by alias); 21 Nov 2004 07:14:41 -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 25430 invoked by uid 48); 21 Nov 2004 07:14:34 -0000 Date: Sun, 21 Nov 2004 07:14:00 -0000 Message-ID: <20041121071434.25429.qmail@sourceware.org> From: "ebotcazou at gcc dot gnu dot org" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20041120163030.18577.falk@debian.org> References: <20041120163030.18577.falk@debian.org> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug rtl-optimization/18577] [3.3 regression] variable use moved before initialization X-Bugzilla-Reason: CC X-SW-Source: 2004-11/txt/msg02412.txt.bz2 List-Id: ------- Additional Comments From ebotcazou at gcc dot gnu dot org 2004-11-21 07:14 ------- > The bug seems to be caused by the loop unroller making a pseudo local > to be able to duplicate it while it is still needed outside of the loop. > Reverting Eric Botcazou's patch for rtl-optimization/11841, which is > also about this, fixes the problem. Thanks for investigating. > I don't really understand what's going on, but is it possible we still have to > look at the pseudo luids and not only the note luids? Like this? IIRC note luids are supposed to be a superset of regular luids, so your check should be redundant (see regclass.c:reg_scan_mark_refs). Now something could have invalidated this relationship. -- What |Removed |Added ---------------------------------------------------------------------------- CC|ebotcazou at gcc dot gnu dot| |org | AssignedTo|unassigned at gcc dot gnu |ebotcazou at gcc dot gnu dot |dot org |org Status|NEW |ASSIGNED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18577