From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13659 invoked by alias); 13 Nov 2012 15:07:44 -0000 Received: (qmail 13319 invoked by uid 48); 13 Nov 2012 15:06:28 -0000 From: "t.artem at mailcity dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/54073] [4.7/4.8 Regression] SciMark Monte Carlo test performance has seriously decreased in recent GCC releases Date: Tue, 13 Nov 2012 15:07:00 -0000 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: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: t.artem at mailcity dot com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.7.3 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 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: 2012-11/txt/msg01166.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54073 --- Comment #9 from Artem S. Tashkinov 2012-11-13 15:06:25 UTC --- (In reply to comment #8) > The attached proof of concept patch attempts to just restore the 4.6 and > earlier behavior by allowing in all comparisons. Of course perhaps it might be > possible it needs better tuning than that, I meant it just as a start for > discussions. The results look terrific, I hope this patch will be merged ASAP.