From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9554 invoked by alias); 10 Mar 2014 11:04:05 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 9514 invoked by uid 48); 10 Mar 2014 11:04:02 -0000 From: "manjian2006 at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug debug/60438] [4.9 Regression] dwarf2cfi :2239 still assert,not the same cause as PR 59575 Date: Mon, 10 Mar 2014 11:04:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: debug X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: manjian2006 at gmail dot com X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rth at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.9.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-03/txt/msg00761.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60438 --- Comment #26 from linzj --- (In reply to Jakub Jelinek from comment #25) > Perhaps we can handle some most common cases of frame related insns (e.g. if > both have REG_CFA_ADJUST_CFA notes, etc.), perhaps it would be worth it to > run a bootstrap which would log when the above hunk prevented some merging > and append both insns to some /tmp/ file across whole bootstrap, then we > could see what is common enough to care about. Hi,Jakub,I remove the hunk, because I want some merging happen,not prevent it from.