From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9298 invoked by alias); 23 Feb 2014 14:21:06 -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 9227 invoked by uid 48); 23 Feb 2014 14:21:01 -0000 From: "mikpelinux at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/52306] [4.8 regression] ICE in cselib_record_set, at cselib.c:2158 Date: Sun, 23 Feb 2014 14:21:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 4.6.2 X-Bugzilla-Keywords: build X-Bugzilla-Severity: major X-Bugzilla-Who: mikpelinux at gmail dot com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: law at redhat dot com X-Bugzilla-Target-Milestone: 4.8.3 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: 2014-02/txt/msg02409.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52306 --- Comment #32 from Mikael Pettersson --- (In reply to Andreas Schwab from comment #31) > After backporting the patch to 4.8 there is still a package that fails with > the same error, though it doesn't fail with 4.9. This ICE stopped on trunk with Bin Cheng's "Compute, cache and use cost of auto-increment rtx patterns in IVOPT" patch in r205015, see also http://gcc.gnu.org/ml/gcc-patches/2013-11/msg00156.html Backporting this too to 4.8 stops the ICE there for this test case. However, this patch is just a missed-optimization tweak in ivopts, so I suspect it hides the underlying bug rather than fixing it.