From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19656 invoked by alias); 10 Dec 2012 17:45:24 -0000 Received: (qmail 19393 invoked by uid 48); 10 Dec 2012 17:44:59 -0000 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/55193] [4.8 Regression] ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659 Date: Mon, 10 Dec 2012 17:45:00 -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: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.8.0 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/msg01016.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55193 Jakub Jelinek changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #2 from Jakub Jelinek 2012-12-10 17:44:57 UTC --- Can't be reproduced starting with http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193157 (made latent on this testcase), but if I revert the patch I can reproduce it easily. The bug is in lra-constraints.c, loc_equivalence_change_p really doesn't work well on DEBUG_INSNs.