From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 50888 invoked by alias); 12 Sep 2018 16:50:21 -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 50862 invoked by uid 89); 12 Sep 2018 16:50:20 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-2.0 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 spammy= X-HELO: relay1.mentorg.com Received: from relay1.mentorg.com (HELO relay1.mentorg.com) (192.94.38.131) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 12 Sep 2018 16:50:19 +0000 Received: from nat-ies.mentorg.com ([192.94.31.2] helo=svr-ies-mbx-01.mgc.mentorg.com) by relay1.mentorg.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-SHA384:256) id 1g08LK-0004GQ-0J from joseph_myers@mentor.com for gcc-patches@gcc.gnu.org; Wed, 12 Sep 2018 09:50:18 -0700 Received: from digraph.polyomino.org.uk (137.202.0.90) by svr-ies-mbx-01.mgc.mentorg.com (139.181.222.1) with Microsoft SMTP Server (TLS) id 15.0.1320.4; Wed, 12 Sep 2018 17:50:14 +0100 Received: from jsm28 (helo=localhost) by digraph.polyomino.org.uk with local-esmtp (Exim 4.90_1) (envelope-from ) id 1g08LF-0004ED-8F; Wed, 12 Sep 2018 16:50:13 +0000 Date: Wed, 12 Sep 2018 16:50:00 -0000 From: Joseph Myers To: Andrew Stubbs CC: Subject: Re: [PATCH 21/25] GCN Back-end (part 2/2). In-Reply-To: <072fddbb-c4ba-e867-7ceb-7557b39e5780@codesourcery.com> Message-ID: References: <4c633833-1954-4b62-1a96-4f1c2cf541fd@codesourcery.com> <71811e56-8c57-d691-efdc-1c7727d0465c@codesourcery.com> <072fddbb-c4ba-e867-7ceb-7557b39e5780@codesourcery.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" X-SW-Source: 2018-09/txt/msg00643.txt.bz2 On Wed, 12 Sep 2018, Andrew Stubbs wrote: > > What if the host is x86_64 with the x32 ABI? If the requirement is for > > various types to be the same between the host and GCN, I'd expect that x32 > > ABI on the host means it is unsuitable for using gcn-run. Or are the > > requirements for compatible types between some other two pieces, so that > > an x32 gcn-run is OK? > > No, x32 would not be ok. The test as is rejects x86_64-*-linux-gnux32, so that > ought not to be a problem unless somebody has an x32 system with the default > triplet. I don't see anything in config.guess that would create such a name (config.guess tries to avoid testing $CC as much as possible, and testing the ABI used by $CC would be necessary to distinguish x32), so while people can use such a triplet to change the default ABI for the target, I wouldn't expect it necessarily to be used for the host. -- Joseph S. Myers joseph@codesourcery.com