From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Andrea Corallo via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#46256: [feature/native-comp] AOT eln files ignored if run from build tree Date: Sat, 06 Mar 2021 20:31:02 +0000 Message-ID: References: <83tuprhur0.fsf@gnu.org> <83o8fxyafx.fsf@gnu.org> <83h7lpy7b7.fsf@gnu.org> <83blbxxwuj.fsf@gnu.org> <83a6rgwdmr.fsf@gnu.org> <835z24wb0s.fsf@gnu.org> <83y2f0uqcd.fsf@gnu.org> <83im64unhs.fsf@gnu.org> <834khouj1z.fsf@gnu.org> Reply-To: Andrea Corallo Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="12966"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 46256@debbugs.gnu.org, andrewjmoreton@gmail.com, pipcet@gmail.com To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Mar 06 21:32:10 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1lIdas-0003Hv-4l for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 06 Mar 2021 21:32:10 +0100 Original-Received: from localhost ([::1]:59518 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lIdaq-0004Qv-SY for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 06 Mar 2021 15:32:08 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:49140) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lIdak-0004Qn-Pq for bug-gnu-emacs@gnu.org; Sat, 06 Mar 2021 15:32:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:55129) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lIdak-0004Lr-Ic for bug-gnu-emacs@gnu.org; Sat, 06 Mar 2021 15:32:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lIdak-0001KK-Dv for bug-gnu-emacs@gnu.org; Sat, 06 Mar 2021 15:32:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Andrea Corallo Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 06 Mar 2021 20:32:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 46256 X-GNU-PR-Package: emacs Original-Received: via spool by 46256-submit@debbugs.gnu.org id=B46256.16150626655036 (code B ref 46256); Sat, 06 Mar 2021 20:32:02 +0000 Original-Received: (at 46256) by debbugs.gnu.org; 6 Mar 2021 20:31:05 +0000 Original-Received: from localhost ([127.0.0.1]:38442 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lIdZp-0001J9-7Q for submit@debbugs.gnu.org; Sat, 06 Mar 2021 15:31:05 -0500 Original-Received: from mx.sdf.org ([205.166.94.24]:55918) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lIdZn-0001J2-K3 for 46256@debbugs.gnu.org; Sat, 06 Mar 2021 15:31:04 -0500 Original-Received: from mab (ma.sdf.org [205.166.94.33]) by mx.sdf.org (8.15.2/8.14.5) with ESMTPS id 126KV2Kv013482 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits) verified NO); Sat, 6 Mar 2021 20:31:03 GMT In-Reply-To: <834khouj1z.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 06 Mar 2021 22:24:40 +0200") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:201689 Archived-At: Eli Zaretskii writes: >> From: Andrea Corallo >> Cc: Eli Zaretskii , 46256@debbugs.gnu.org, >> andrewjmoreton@gmail.com >> Date: Sat, 06 Mar 2021 19:48:53 +0000 >> >> > It's crashing for me with a Feb 15 build of libgccjit from gcc trunk, >> > but not with a newer build from gcc trunk, so it looks like a gcc bug >> > that has since been fixed. >> >> I think what you see should be PR99126 [1] that was fixed recently on >> trunk. >> >> IIRC (might be wrong) Eli is on a GCC 9, where at the time I could not >> reproduce this bug. > > Yes, I'm using GCC 9.2.0. > >> If we discover PR99126 shows-up in versions other than 10 we might >> want to relax the version check around the workaround we have in >> place. > > It looks like that: I patched comp.c to take the workaround regardless > of the libgccjit version, and the result of running under GDB is: > > libgccjit.so: note: disable pass tree-isolate-paths for functions in the range of [0, 4294967295] > [Inferior 1 (process 5640) exited normally] > > It also completed much faster than the buggy version, which probably > means the buggy code has some kind of infinite recursion or other > issue that causes the run to be much more expensive. Nice very interesting. I know the bug is there in 9 too (the builtin trap is not initialized) but don't know why I could not exercise it on my setup with the first reproducer I found. I guess we'll have to extend the workaround to all pre 11 GCC when configuring Emacs with wide int... Thanks Andrea