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[23.128.96.18]) by mx.google.com with ESMTP id co16si2814514edb.465.2020.10.06.08.38.28; Tue, 06 Oct 2020 08:38:53 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725981AbgJFPh3 (ORCPT + 99 others); Tue, 6 Oct 2020 11:37:29 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:38611 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725769AbgJFPh2 (ORCPT ); Tue, 6 Oct 2020 11:37:28 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-182-jtRrFDBRMKOCrR0JP0rL5Q-1; Tue, 06 Oct 2020 16:37:24 +0100 X-MC-Unique: jtRrFDBRMKOCrR0JP0rL5Q-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Tue, 6 Oct 2020 16:37:24 +0100 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Tue, 6 Oct 2020 16:37:24 +0100 From: David Laight To: 'Nick Clifton' , Peter Zijlstra , "stern@rowland.harvard.edu" CC: "linux-toolchains@vger.kernel.org" , Will Deacon , Paul McKenney , "linux-kernel@vger.kernel.org" , "parri.andrea@gmail.com" , "boqun.feng@gmail.com" , "npiggin@gmail.com" , "dhowells@redhat.com" , "j.alglave@ucl.ac.uk" , "luc.maranget@inria.fr" , "akiyks@gmail.com" , "dlustig@nvidia.com" , "joel@joelfernandes.org" , "torvalds@linux-foundation.org" Subject: RE: Control Dependencies vs C Compilers Thread-Topic: Control Dependencies vs C Compilers Thread-Index: AQHWm9Z2gJDHxIOMJkCFRnXrafG7EamKgJsQgAAvGJKAAASM8A== Date: Tue, 6 Oct 2020 15:37:24 +0000 Message-ID: <1dabfd1939f348198678121f94d6c9b2@AcuMS.aculab.com> References: <20201006114710.GQ2628@hirez.programming.kicks-ass.net> <3dfe7daed3c44f46a6989b6513ad7bb0@AcuMS.aculab.com> <20201006133115.GT2628@hirez.programming.kicks-ass.net> <20201006142324.GB416765@rowland.harvard.edu> <20201006144302.GY2628@hirez.programming.kicks-ass.net> <47bfda8f-304e-5283-c6d6-0753037b0b2c@redhat.com> In-Reply-To: <47bfda8f-304e-5283-c6d6-0753037b0b2c@redhat.com> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org PiAgIE15IHN1Z2dlc3Rpb24gYXMgYW4gYWx0ZXJuYXRpdmUgaXMgdG8gdXNlIGFzc2VtYmxlciBp bnN0ZWFkLg0KPiAgIFRoYXQgd2F5IHlvdSBjYW4gZ3VhcmFudGVlIHRoYXQgeW91IGdldCB0aGUg aW5zdHJ1Y3Rpb25zIHlvdQ0KPiAgIHdhbnQgaW4gdGhlIG9yZGVyIHRoYXQgeW91IHdhbnQgdGhl bS4gIEl0IHNob3VsZCBiZSBmYWlybHkNCj4gICBzdHJhaWdodGZvcndhcmQgdG8gY3JlYXRlIGEg bWFjcm8gb3IgaW5saW5lIGZ1bmN0aW9uIHRoYXQNCj4gICBjb250YWlucyB0aGUgbmVjZXNzYXJ5 IGNvZGUgYW5kIHRoaXMgY2FuIGJlIGRvbmUgb25jZSBhbmQNCj4gICB0aGVuIHVzZWQgd2hlcmV2 ZXIgdGhlIGZ1bmN0aW9uYWxpdHkgaXMgcmVxdWlyZWQuDQoNCkMgZXhpc3RzIGJlY2F1c2UgSyZS IGdvdCBmZWQgdXAgb2Ygd3JpdGluZyBwZHAtMTEgYXNzZW1ibGVyLg0KQ29tcGFyZWQgdG8gc29t ZSBtb2Rlcm4gb25lcyBpdCBpcyBuaWNlIGFuZCBlYXN5IHRvIHdyaXRlDQooSSdtIG9sZCBlbm91 Z2ggdG8gaGF2ZSB1c2VkIHBkcC0xMS4pDQoNCllvdSBjYW4ndCBwdXQgY29udHJvbCBkZXBlbmRl bmNpZXMgaW5zaWRlIEMgYXNtIHN0YXRlbWVudHMuDQoNCglEYXZpZA0KDQotDQpSZWdpc3RlcmVk IEFkZHJlc3MgTGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwgTW91bnQgRmFybSwgTWlsdG9uIEtleW5l cywgTUsxIDFQVCwgVUsNClJlZ2lzdHJhdGlvbiBObzogMTM5NzM4NiAoV2FsZXMpDQo=