From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 18529 invoked by alias); 28 Oct 2011 13:56:54 -0000 Received: (qmail 18489 invoked by uid 22791); 28 Oct 2011 13:56:52 -0000 X-SWARE-Spam-Status: No, hits=-2.0 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from bromo.med.uc.edu (HELO bromo.med.uc.edu) (129.137.3.146) by sourceware.org (qpsmtpd/0.43rc1) with SMTP; Fri, 28 Oct 2011 13:56:38 +0000 Received: from bromo.med.uc.edu (localhost.localdomain [127.0.0.1]) by bromo.med.uc.edu (Postfix) with ESMTP id 8AA90B2DE8; Fri, 28 Oct 2011 09:56:37 -0400 (EDT) Received: (from howarth@localhost) by bromo.med.uc.edu (8.14.3/8.14.3/Submit) id p9SDuanO032758; Fri, 28 Oct 2011 09:56:36 -0400 Date: Fri, 28 Oct 2011 14:35:00 -0000 From: Jack Howarth To: Mikael Morin Cc: gfortran , GCC patches Subject: Re: [Patch, fortran] [00/66] PR fortran/43829 Inline sum and product (AKA scalarization of reductions) Message-ID: <20111028135636.GB32273@bromo.med.uc.edu> References: <20111027232818.18581.901@gimli.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20111027232818.18581.901@gimli.local> User-Agent: Mutt/1.5.18 (2008-05-17) Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org X-SW-Source: 2011-10/txt/msg02663.txt.bz2 Mikael, The complete patch bootstraps current FSF gcc trunk on x86_64-apple-darwin11 and the resulting gfortran compiler can compile the Polyhedron 2005 benchmarks using... Compile Command : gfortran-fsf-4.7 -O3 -ffast-math -funroll-loops -flto -fwhole-program %n.f90 -o %n without runtime regressions. However I don't seem to see any particular performance improvements with your patches applied. In fact, a few benchmarks including nf and test_fpu seem to show slower runtimes (~8-11%). Have you done any benchmarking with and without the proposed patches? Jack