From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=66.187.233.73; helo=mx1.redhat.com; envelope-from=lersek@redhat.com; receiver=edk2-devel@lists.01.org Received: from mx1.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 8C76122352296 for ; Wed, 28 Feb 2018 05:55:35 -0800 (PST) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 4BDC48D6F1; Wed, 28 Feb 2018 14:01:42 +0000 (UTC) Received: from lacos-laptop-7.usersys.redhat.com (ovpn-120-11.rdu2.redhat.com [10.10.120.11]) by smtp.corp.redhat.com (Postfix) with ESMTP id 96E9610AF9D6; Wed, 28 Feb 2018 14:01:41 +0000 (UTC) From: Laszlo Ersek To: =?UTF-8?Q?Marvin_H=c3=a4user?= , "edk2-devel@lists.01.org" Cc: "michael.d.kinney@intel.com" , "liming.gao@intel.com" References: <62c9363b-7f27-cfff-492a-560660727b86@redhat.com> <366ffc0c-b55f-a3c1-973e-b80d3dd07d26@redhat.com> <2b22bfbd-24ce-e26c-9f1c-e5ba2816b48f@redhat.com> Message-ID: <612219c9-b20d-f563-f3e3-9283a92d8aa6@redhat.com> Date: Wed, 28 Feb 2018 15:01:40 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <2b22bfbd-24ce-e26c-9f1c-e5ba2816b48f@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.2]); Wed, 28 Feb 2018 14:01:42 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.2]); Wed, 28 Feb 2018 14:01:42 +0000 (UTC) for IP:'10.11.54.3' DOMAIN:'int-mx03.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'lersek@redhat.com' RCPT:'' Subject: Re: [PATCH 1/2] MdePkg/Base.h: Ensure safe bitwise operations. X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Feb 2018 13:55:36 -0000 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit On 02/28/18 14:57, Laszlo Ersek wrote: > On 02/28/18 12:43, Marvin Häuser wrote: >> +2) Binary operations (AND, OR, ...) should not raise any problems at >> all (except for our fellow using VS2005x86 :) ) > > Haha :) In earnest though, you are right. Hm... It should not be a frequent pattern, but: (BIT5 | BIT3) << 2 might no longer build; we might have to use LShiftU64() instead. Laszlo