From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 52474 invoked by alias); 11 Mar 2016 20:59:07 -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 52453 invoked by uid 89); 11 Mar 2016 20:59:06 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=0.5 required=5.0 tests=AWL,BAYES_20,KAM_LAZY_DOMAIN_SECURITY,RCVD_IN_DNSWL_NONE autolearn=no version=3.3.2 spammy=regreg, PR70171, reg-reg, pr70171 X-HELO: smtp.eu.adacore.com Received: from mel.act-europe.fr (HELO smtp.eu.adacore.com) (194.98.77.210) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-GCM-SHA384 encrypted) ESMTPS; Fri, 11 Mar 2016 20:59:04 +0000 Received: from localhost (localhost [127.0.0.1]) by filtered-smtp.eu.adacore.com (Postfix) with ESMTP id 3940A8134E; Fri, 11 Mar 2016 21:59:00 +0100 (CET) Received: from smtp.eu.adacore.com ([127.0.0.1]) by localhost (smtp.eu.adacore.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gf_p50utGSfR; Fri, 11 Mar 2016 21:59:00 +0100 (CET) Received: from polaris.localnet (bon31-6-88-161-99-133.fbx.proxad.net [88.161.99.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.eu.adacore.com (Postfix) with ESMTPSA id 1A0118134B; Fri, 11 Mar 2016 21:58:59 +0100 (CET) From: Eric Botcazou To: Richard Biener Cc: gcc-patches@gcc.gnu.org Subject: Re: [PATCH][GCC 7] Fix PR70171 Date: Fri, 11 Mar 2016 20:59:00 -0000 Message-ID: <5786847.OenCvMFoMo@polaris> User-Agent: KMail/4.14.9 (Linux/3.16.7-35-desktop; KDE/4.14.9; x86_64; ; ) In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-SW-Source: 2016-03/txt/msg00714.txt.bz2 > The following teaches phiprop to handle the case of aggregate copies > where the aggregate has non-BLKmode which means it is very likely > expanded as reg-reg moves (any better test for that apart from > checking for non-BLKmode?). !aggregate_value_p comes to mind, but non-BLKmode is the definitive test to distinguish the register from the non-register case at the RTL level. -- Eric Botcazou