From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29911 invoked by alias); 25 Mar 2014 14:29:38 -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 29865 invoked by uid 48); 25 Mar 2014 14:29:35 -0000 From: "law at redhat dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/60648] [4.9 Regression] ICE (segmentation fault) in expand_binop Date: Tue, 25 Mar 2014 14:29:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: law at redhat dot com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: law at redhat dot com 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/msg02270.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60648 --- Comment #3 from Jeffrey A. Law --- We're getting non-canonical as part of the index computation in do_tablejump: (gdb) p debug_rtx (index) (plus:SI (mult:SI (const_int 0 [0]) (const_int 4 [0x4])) (label_ref:SI 0)) Obviously memory_address and its children aren't prepared to deal with the non-canonical RTL. Not sure what this has to do with threading, other than perhaps threading exposing "0" as the index