From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: John Paul Adrian Glaubitz Newsgroups: gmane.lisp.guile.devel Subject: Re: Regression on 32-bit big-endian targets Date: Sat, 12 Dec 2020 19:55:28 +0100 Message-ID: <4ea37906-fddc-bad6-b29e-3ca1bf9b0c77@physik.fu-berlin.de> References: <9a864c2b-2076-5849-2af2-e52f267cdb70@physik.fu-berlin.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="7119"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.5.1 To: guile-devel@gnu.org Original-X-From: guile-devel-bounces+guile-devel=m.gmane-mx.org@gnu.org Sat Dec 12 20:03:58 2020 Return-path: Envelope-to: guile-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1koABR-0001j4-77 for guile-devel@m.gmane-mx.org; Sat, 12 Dec 2020 20:03:57 +0100 Original-Received: from localhost ([::1]:59222 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1koABQ-0006Uw-3s for guile-devel@m.gmane-mx.org; Sat, 12 Dec 2020 14:03:56 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:48880) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1koA3X-0001JU-TL for guile-devel@gnu.org; Sat, 12 Dec 2020 13:55:52 -0500 Original-Received: from outpost1.zedat.fu-berlin.de ([130.133.4.66]:54121) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1koA3L-0007gM-0n for guile-devel@gnu.org; Sat, 12 Dec 2020 13:55:44 -0500 Original-Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost.zedat.fu-berlin.de (Exim 4.94) for guile-devel@gnu.org with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (envelope-from ) id 1koA3F-0013Mh-Ja; Sat, 12 Dec 2020 19:55:29 +0100 Original-Received: from p5b13ae73.dip0.t-ipconnect.de ([91.19.174.115] helo=[192.168.178.139]) by inpost2.zedat.fu-berlin.de (Exim 4.94) for guile-devel@gnu.org with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (envelope-from ) id 1koA3F-001s60-9S; Sat, 12 Dec 2020 19:55:29 +0100 In-Reply-To: <9a864c2b-2076-5849-2af2-e52f267cdb70@physik.fu-berlin.de> Content-Language: en-US X-Original-Sender: glaubitz@physik.fu-berlin.de X-Originating-IP: 91.19.174.115 Received-SPF: pass client-ip=130.133.4.66; envelope-from=glaubitz@zedat.fu-berlin.de; helo=outpost1.zedat.fu-berlin.de X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guile-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Developers list for Guile, the GNU extensibility library" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guile-devel-bounces+guile-devel=m.gmane-mx.org@gnu.org Original-Sender: "guile-devel" Xref: news.gmane.io gmane.lisp.guile.devel:20619 Archived-At: On 12/11/20 12:41 PM, John Paul Adrian Glaubitz wrote: > I'm currently bisecting the problem on a fast POWER server running a 32-bit Debian > powerpc installation and will hopefully report back soonish. Bisecting lead me to this change which is probably just hiding the real problem: (sid_powerpc-dchroot)glaubitz@perotto:~/guile-git$ git bisect good a68c80c747a2a8ec92fa84684ebd60b4ecb7ffa0 is the first bad commit commit a68c80c747a2a8ec92fa84684ebd60b4ecb7ffa0 Author: Andy Wingo Date: Mon May 11 15:22:29 2020 +0200 Switch to baseline compiler for bootstrap/ * bootstrap/Makefile.am (GUILE_OPTIMIZATIONS): Add -Ono-cps so that we use the baseline compiler when bootstrapping. bootstrap/Makefile.am | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (sid_powerpc-dchroot)glaubitz@perotto:~/guile-git$ I'll try to bisect again with "-Ono-cps" removed after it is introduced. FWIW, there is a big-endian PowerPC machine available in the gcc compile farm if anyone wants to help track down this issue [1]. Adrian > [1] https://gcc.gnu.org/wiki/CompileFarm -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@debian.org `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913