From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27000 invoked by alias); 26 Jul 2015 16:54:00 -0000 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 Received: (qmail 26924 invoked by uid 89); 26 Jul 2015 16:53:59 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.0 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD,SPF_PASS autolearn=ham version=3.3.2 X-HELO: fencepost.gnu.org Received: from fencepost.gnu.org (HELO fencepost.gnu.org) (208.118.235.10) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-SHA encrypted) ESMTPS; Sun, 26 Jul 2015 16:53:58 +0000 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51033) by fencepost.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1ZJPBT-0002Uy-Vt for gcc-patches@gnu.org; Sun, 26 Jul 2015 12:53:56 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZJPBP-0005vu-I2 for gcc-patches@gnu.org; Sun, 26 Jul 2015 12:53:55 -0400 Received: from relay1.mentorg.com ([192.94.38.131]:43469) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZJPBP-0005v9-CY for gcc-patches@gnu.org; Sun, 26 Jul 2015 12:53:51 -0400 Received: from nat-ies.mentorg.com ([192.94.31.2] helo=SVR-IES-FEM-01.mgc.mentorg.com) by relay1.mentorg.com with esmtp id 1ZJPBO-00061C-KH from Tom_deVries@mentor.com for gcc-patches@gnu.org; Sun, 26 Jul 2015 09:53:50 -0700 Received: from [127.0.0.1] (137.202.0.76) by SVR-IES-FEM-01.mgc.mentorg.com (137.202.0.104) with Microsoft SMTP Server id 14.3.224.2; Sun, 26 Jul 2015 17:53:49 +0100 Message-ID: <55B5108B.4040400@mentor.com> Date: Sun, 26 Jul 2015 17:09:00 -0000 From: Tom de Vries User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: "gcc-patches@gnu.org" Subject: Re: [PATCH] Allow non-overflow ops in vect_is_simple_reduction_1 References: <55B24E1F.1070705@mentor.com> <55B50F85.3070408@mentor.com> In-Reply-To: <55B50F85.3070408@mentor.com> Content-Type: multipart/mixed; boundary="------------090500020203010501090807" X-detected-operating-system: by eggs.gnu.org: Windows NT kernel [generic] [fuzzy] X-Received-From: 192.94.38.131 X-SW-Source: 2015-07/txt/msg02182.txt.bz2 --------------090500020203010501090807 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Content-length: 524 On 26/07/15 18:49, Tom de Vries wrote: > On 24/07/15 16:39, Tom de Vries wrote: >> Hi, >> >> this patch allows parallelization and vectorization of reduction >> operators that are guaranteed to not overflow (such as min and max >> operators), independent of the overflow behaviour of the type. >> >> Bootstrapped and reg-tested on x86_64. >> >> OK for trunk? >> >> Thanks, >> - Tom [ Slip-of-the-keyboard ] This is the graphite version of this patch. Bootstrapped and reg-tested on x86_64. OK for trunk? Thanks, - Tom --------------090500020203010501090807 Content-Type: text/x-patch; name="0002-Handle-non-overflow-reductions-in-graphite.patch" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="0002-Handle-non-overflow-reductions-in-graphite.patch" Content-length: 971 Handle non-overflow reductions in graphite 2015-07-21 Tom de Vries * graphite-sese-to-poly.c (is_reduction_operation_p): Allow operations that do not overflow. --- gcc/graphite-sese-to-poly.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/gcc/graphite-sese-to-poly.c b/gcc/graphite-sese-to-poly.c index c583f16..531c848 100644 --- a/gcc/graphite-sese-to-poly.c +++ b/gcc/graphite-sese-to-poly.c @@ -2614,8 +2614,19 @@ is_reduction_operation_p (gimple stmt) if (FLOAT_TYPE_P (type)) return flag_associative_math; - return (INTEGRAL_TYPE_P (type) - && TYPE_OVERFLOW_WRAPS (type)); + if (ANY_INTEGRAL_TYPE_P (type)) + { + if (INTEGRAL_TYPE_P (type) + && TYPE_OVERFLOW_WRAPS (type)) + return true; + + if (no_overflow_tree_code (code, type)) + return true; + + return false; + } + + return false; } /* Returns true when PHI contains an argument ARG. */ -- 1.9.1 --------------090500020203010501090807--