From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14989 invoked by alias); 8 Dec 2012 19:06:22 -0000 Received: (qmail 14826 invoked by uid 48); 8 Dec 2012 19:05:53 -0000 From: "mikpe at it dot uu.se" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/52573] [4.6/4.7/4.8 regression] regrename creates overlapping register allocations for output operands Date: Sat, 08 Dec 2012 19:06:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mikpe at it dot uu.se X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.6.4 X-Bugzilla-Changed-Fields: CC Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 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 X-SW-Source: 2012-12/txt/msg00795.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52573 Mikael Pettersson changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mikpe at it dot uu.se --- Comment #9 from Mikael Pettersson 2012-12-08 19:05:47 UTC --- (In reply to comment #8) > The failure disappeared somewhere between r190830 and r191055. Are you sure about that revision range? I still see the bug with 4.8-20120909, i.e., r191120. The bug appears to be gone on current trunk however; a bisection tells me it disappeared with Richard Sandiford's "Replace mode_for_extraction with new interface" patch in r193605: http://gcc.gnu.org/ml/gcc-patches/2012-11/msg00260.html http://gcc.gnu.org/ml/gcc-cvs/2012-11/msg00552.html