From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Dmitry Antipov Newsgroups: gmane.emacs.devel Subject: Re: MS-Windows tester wanted for trunk Date: Tue, 16 Sep 2014 19:24:28 +0400 Message-ID: <5418562C.9040501@yandex.ru> References: <5417F9B8.9020503@yandex.ru> <83r3zb4oyh.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1410881099 31306 80.91.229.3 (16 Sep 2014 15:24:59 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 16 Sep 2014 15:24:59 +0000 (UTC) Cc: emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Sep 16 17:24:53 2014 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XTucf-0003Th-1l for ged-emacs-devel@m.gmane.org; Tue, 16 Sep 2014 17:24:53 +0200 Original-Received: from localhost ([::1]:38615 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XTuce-00064F-KG for ged-emacs-devel@m.gmane.org; Tue, 16 Sep 2014 11:24:52 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:39501) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XTucU-00063r-9M for emacs-devel@gnu.org; Tue, 16 Sep 2014 11:24:49 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XTucM-0006b9-J0 for emacs-devel@gnu.org; Tue, 16 Sep 2014 11:24:42 -0400 Original-Received: from forward2l.mail.yandex.net ([2a02:6b8:0:1819::2]:51803) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XTucM-0006aj-6n for emacs-devel@gnu.org; Tue, 16 Sep 2014 11:24:34 -0400 Original-Received: from smtp16.mail.yandex.net (smtp16.mail.yandex.net [95.108.252.16]) by forward2l.mail.yandex.net (Yandex) with ESMTP id 4132D1AC152E; Tue, 16 Sep 2014 19:24:29 +0400 (MSK) Original-Received: from smtp16.mail.yandex.net (localhost [127.0.0.1]) by smtp16.mail.yandex.net (Yandex) with ESMTP id B3A636A0885; Tue, 16 Sep 2014 19:24:28 +0400 (MSK) Original-Received: from unknown (unknown [37.139.80.10]) by smtp16.mail.yandex.net (nwsmtp/Yandex) with ESMTPSA id 8obosskE0A-OSQuLdmj; Tue, 16 Sep 2014 19:24:28 +0400 (using TLSv1.2 with cipher AES128-SHA (128/128 bits)) (Client certificate not present) X-Yandex-Uniq: 7f755a85-cec8-4997-877a-ac5cd6d5ec25 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1410881068; bh=fcI9O+YkJVUcqqZSwRduTq6mA9g8Zwn0wvKKGx7YwqI=; h=Message-ID:Date:From:User-Agent:MIME-Version:To:CC:Subject: References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=E9XlDrmq7GfsnS65NBsf2o6kSgJ6q/XGPpqmVsfi2lgKopruqmxhvDGYACNNoGR/3 kxQsRodCKDcJO0E2XtNkTMJNNNZInP+FyFJ15mkulxxOoR1PmiBwoEh2svnNO2Bkav 5kepT4ucmTHVShq1ZAMP8Fkt/J5CvbBHZMuF6ZPQ= Authentication-Results: smtp16.mail.yandex.net; dkim=pass header.i=@yandex.ru User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 In-Reply-To: <83r3zb4oyh.fsf@gnu.org> X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2a02:6b8:0:1819::2 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:174371 Archived-At: On 09/16/2014 06:31 PM, Eli Zaretskii wrote: > So the conclusion is that, at least for 32-bit Windows builds, the > alignment of union Aligned_Cons is not enough to produce the effect > you want, and additional measures are necessary. > > I don't expect this to be a problem in 64-bit Windows builds, because > there Windows does enforce 16-byte alignment of the stack. But, as I > already said, I didn't test that. Do we have the same issue with alloca? If not, whether it will be simpler to define scoped_cons to local_cons for 32-bit Windows builds? > This could be an issue in other x86 32-bit builds (probably not on > GNU/Linux, though, and not if GCC is the compiler), because AFAIK the > x86 ABI specifies a 4-byte stack alignment. Hm...I'll try 32-bit builds with clang and icc. BTW, both of them mimics GCC quite well, so I will be very surprised with an issues here. Dmitry