From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25827 invoked by alias); 19 Jun 2013 07:05:32 -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 25812 invoked by uid 89); 19 Jun 2013 07:05:31 -0000 X-Spam-SWARE-Status: No, score=-5.9 required=5.0 tests=AWL,BAYES_20,RCVD_IN_HOSTKARMA_W,RCVD_IN_HOSTKARMA_WL,RP_MATCHES_RCVD,SPF_HELO_PASS,SPF_PASS,TW_AV autolearn=ham version=3.3.1 Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.84/v0.84-167-ge50287c) with ESMTP; Wed, 19 Jun 2013 07:05:30 +0000 Received: from int-mx12.intmail.prod.int.phx2.redhat.com (int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.25]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r5J75TsK003941 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 19 Jun 2013 03:05:29 -0400 Received: from zalov.cz (vpn-51-236.rdu2.redhat.com [10.10.51.236]) by int-mx12.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id r5J75RN9000646 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 19 Jun 2013 03:05:28 -0400 Received: from zalov.cz (localhost [127.0.0.1]) by zalov.cz (8.14.5/8.14.5) with ESMTP id r5J75QbI016139; Wed, 19 Jun 2013 09:05:26 +0200 Received: (from jakub@localhost) by zalov.cz (8.14.5/8.14.5/Submit) id r5J75OX6016138; Wed, 19 Jun 2013 09:05:24 +0200 Date: Wed, 19 Jun 2013 07:05:00 -0000 From: Jakub Jelinek To: Igor Zamyatin Cc: "gcc-patches@gcc.gnu.org" Subject: Re: FW: [PATCH] DATA_ALIGNMENT vs. DATA_ABI_ALIGNMENT (PR target/56564) Message-ID: <20130619070523.GI2336@tucnak.redhat.com> Reply-To: Jakub Jelinek References: <20130607192540.GH1493@tucnak.redhat.com> <0EFAB2BDD0F67E4FB6CCC8B9F87D75692B5204DB@IRSMSX101.ger.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-SW-Source: 2013-06/txt/msg01093.txt.bz2 On Wed, Jun 19, 2013 at 11:01:59AM +0400, Igor Zamyatin wrote: > The change also affects vectorizer in avx case which could be seen for > gcc.dg/tree-ssa/loop-19.c test. > > After the change report says > > loop-19_bad.c:16: note: === vect_analyze_data_refs_alignment === > loop-19_bad.c:16: note: vect_compute_data_ref_alignment: > loop-19_bad.c:16: note: can't force alignment of ref: a[j_9] > loop-19_bad.c:16: note: vect_compute_data_ref_alignment: > loop-19_bad.c:16: note: can't force alignment of ref: c[j_9] > > AFAICS first condition in ix86_data_alignment was true before the > change so 256 was a return value. > > Do we need to tweak this test also? I'd add -fno-common to the test. Jakub