From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25303 invoked by alias); 15 May 2012 16:00:37 -0000 Received: (qmail 25292 invoked by uid 22791); 15 May 2012 16:00:35 -0000 X-SWARE-Spam-Status: No, hits=-4.3 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED 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, 15 May 2012 16:00:23 +0000 From: "hubicka at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/32911] Function __attribute__ ((idempotent)) Date: Tue, 15 May 2012 16:18:00 -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: enhancement X-Bugzilla-Who: hubicka at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- 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: 2012-05/txt/msg01554.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32911 Jan Hubicka changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hubicka at gcc dot gnu.org --- Comment #4 from Jan Hubicka 2012-05-15 15:59:40 UTC --- Also note that internally we have looping const/looping pure that can be optimized in this manner, so to large degree this is just matter of exporting this out to user attributes + declaring sane behaviour on functions returning void.