From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 40029 invoked by alias); 9 Nov 2015 09:24:51 -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 40018 invoked by uid 89); 9 Nov 2015 09:24:51 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.7 required=5.0 tests=AWL,BAYES_00,KAM_LAZY_DOMAIN_SECURITY,RCVD_IN_DNSWL_LOW autolearn=no version=3.3.2 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; Mon, 09 Nov 2015 09:24:49 +0000 Received: from localhost (localhost [127.0.0.1]) by filtered-smtp.eu.adacore.com (Postfix) with ESMTP id 22612330431B; Mon, 9 Nov 2015 10:24:46 +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 cV2DbssbNFyQ; Mon, 9 Nov 2015 10:24:46 +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 CF18E3304326; Mon, 9 Nov 2015 10:24:45 +0100 (CET) From: Eric Botcazou To: Jason Merrill Cc: gcc-patches@gcc.gnu.org, Richard Biener , Marek Polacek Subject: Re: RFC: C++ delayed folding merge Date: Mon, 09 Nov 2015 09:24:00 -0000 Message-ID: <37127180.YzpAL5vxd7@polaris> User-Agent: KMail/4.14.9 (Linux/3.16.7-29-desktop; KDE/4.14.9; x86_64; ; ) In-Reply-To: <56403D8A.8010601@redhat.com> References: <56403D8A.8010601@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-SW-Source: 2015-11/txt/msg00914.txt.bz2 > One question: The branch changes 'convert' to not fold its result, and > it's not clear to me whether that's part of the expected behavior of a > front end 'convert' function or not. I don't think that you should change the behavior for front-ends that have an internal representation distinct from the GENERIC trees and thus do a global translation to GENERIC at the end; e.g. in the Ada compiler we'd rather have *more* folding than less during this translation. -- Eric Botcazou