From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 10236 invoked by alias); 22 Nov 2010 15:01:49 -0000 Received: (qmail 10223 invoked by uid 22791); 22 Nov 2010 15:01:47 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,TW_CF X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 22 Nov 2010 15:01:44 +0000 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/46494] [4.3/4.4/4.5/4.6 Regression] ICE: verify_flow_info failed when casting-out attribute noreturn with -fno-tree-ccp -fno-tree-fre -ftree-vrp X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-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: 4.3.6 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 Date: Mon, 22 Nov 2010 15:05:00 -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 X-SW-Source: 2010-11/txt/msg02739.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46494 Jakub Jelinek changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #2 from Jakub Jelinek 2010-11-22 15:01:42 UTC --- In vrp the problem is just that loop_optimizer_finalize (unnecessarily) calls verify_flow_info. VRP already has TODO_cleanup_cfg and loop_optimizer_finalize is the last thing done in execute_vrp, so the cfg will be properly cleaned up. I'd say a fix could be if we had an argument to loop_optimizer_finalize whether to do flow verification or not, and pass 0 here in vrp, perhaps other places too.