From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2224 invoked by alias); 6 Dec 2012 09:50:48 -0000 Received: (qmail 2146 invoked by uid 48); 6 Dec 2012 09:50:18 -0000 From: "mikpe at it dot uu.se" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/52306] ICE in CSE Date: Thu, 06 Dec 2012 09:50:00 -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-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mikpe at it dot uu.se X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: 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/msg00520.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52306 --- Comment #9 from Mikael Pettersson 2012-12-06 09:50:12 UTC --- The ICE with gcc 4.8 on the second kde4libs test case started with Richard Biener's "Add gimple load/store predicates, use them from stmt estimates" patch in r192987: http://gcc.gnu.org/ml/gcc-patches/2012-10/msg02728.html http://gcc.gnu.org/ml/gcc-cvs/2012-10/msg01111.html As far as I can tell from looking at the patch, it merely tweaks some inlining heuristics, so most likely it just exposed a latent issue. The ICE occurs because /* The register should have been invalidated. */ gcc_assert (REG_VALUES (dreg)->elt == 0); in cselib.c line 2375 fails.