From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 32188 invoked by alias); 17 Jul 2012 15:57:05 -0000 Received: (qmail 32180 invoked by uid 22791); 17 Jul 2012 15:57:04 -0000 X-SWARE-Spam-Status: No, hits=-7.0 required=5.0 tests=AWL,BAYES_00,KHOP_RCVD_UNTRUST,KHOP_THREADED,RCVD_IN_DNSWL_HI,RCVD_IN_HOSTKARMA_W,SPF_HELO_PASS,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 17 Jul 2012 15:56:47 +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 q6HFuPGN017959 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 17 Jul 2012 11:56:26 -0400 Received: from anchor.twiddle.home (vpn-235-96.phx2.redhat.com [10.3.235.96]) by int-mx12.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id q6HFuP5H017725; Tue, 17 Jul 2012 11:56:25 -0400 Message-ID: <50058B29.5050004@redhat.com> Date: Tue, 17 Jul 2012 15:57:00 -0000 From: Richard Henderson User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120615 Thunderbird/13.0.1 MIME-Version: 1.0 To: Andrew MacLeod CC: Arnaud Charlet , gcc-patches@gcc.gnu.org, Vincent Pucci Subject: Re: [Ada] Fix to 64-bit atomic operation failures on ppc-linux References: <20120717101511.GA25996@adacore.com> <50055315.9070306@redhat.com> In-Reply-To: <50055315.9070306@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes 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 X-SW-Source: 2012-07/txt/msg00752.txt.bz2 On 07/17/2012 04:57 AM, Andrew MacLeod wrote: > What is the nature of the atomic failures using the > __atomic_compare_exchange built-in? Does it have anything to do > with the expected value being returned by pointer? It's a rue. He never was using __atomic_compare_exchange; the "Atomic_*" was simply the Ada symbol name. r~