From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 10719 invoked by alias); 14 Dec 2010 23:17:26 -0000 Received: (qmail 10709 invoked by uid 22791); 14 Dec 2010 23:17:26 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 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; Tue, 14 Dec 2010 23:17:22 +0000 From: "hubicka at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/45791] Missed devirtualization 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: X-Bugzilla-Severity: normal X-Bugzilla-Who: hubicka 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: --- 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 Date: Tue, 14 Dec 2010 23:17:00 -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: 2010-12/txt/msg01660.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45791 --- Comment #10 from Jan Hubicka 2010-12-14 23:17:13 UTC --- Eh, wanted to paste: D.2236_10 = (int (*__vtbl_ptr_type) (void)) f; OBJ_TYPE_REF(D.2236_10;D.2215_3->2) (D.2215_3); I told ccp should IMO optimize it, but doesn't. I guess it is because VRP1 works out the constant but then it doesn't know about OBJ_TYPE_REF folding.