From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 63682 invoked by alias); 13 Sep 2016 20:39:36 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 63625 invoked by uid 89); 13 Sep 2016 20:39:35 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 spammy=H*Ad:U*charlet, H*M:home, HContent-Transfer-Encoding:7Bit X-HELO: smtp.eu.adacore.com Received: from mel.act-europe.fr (HELO smtp.eu.adacore.com) (194.98.77.210) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Tue, 13 Sep 2016 20:39:25 +0000 Received: from localhost (localhost [127.0.0.1]) by filtered-smtp.eu.adacore.com (Postfix) with ESMTP id 2852C81329; Tue, 13 Sep 2016 22:39:23 +0200 (CEST) Received: from smtp.eu.adacore.com ([127.0.0.1]) by localhost (smtp.eu.adacore.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rwlr_fou754M; Tue, 13 Sep 2016 22:39:23 +0200 (CEST) Received: from arcturus.home (ADijon-653-1-96-121.w90-48.abo.wanadoo.fr [90.48.119.121]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.eu.adacore.com (Postfix) with ESMTPSA id DFEFA8130A; Tue, 13 Sep 2016 22:39:22 +0200 (CEST) From: Eric Botcazou To: Andris Pavenis Cc: gcc-patches@gcc.gnu.org, Arnaud Charlet , DJ Delorie Subject: Re: [PATCH 3/4][Ada,DJGPP] Ada support for DJGPP Date: Wed, 14 Sep 2016 00:15:00 -0000 Message-ID: <1695281.HKxou3PN56@arcturus.home> User-Agent: KMail/4.14.10 (Linux/3.16.7-42-desktop; KDE/4.14.9; x86_64; ; ) In-Reply-To: References: <3c0dca8f-afad-715e-98ea-5345752d87d3@iki.fi> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-SW-Source: 2016-09/txt/msg00774.txt.bz2 > Found that the first revision causing this problem (of course with DJGPP > related patches applied) is 239113. Native bootstrap with same DJGPP > related patches applied on top of revision 239112 succeeds without > problems. > > [andris@ap gcc]$ git bisect good > 4bfa373ed2bfd022628609751ff34b8e51e0c2b9 is the first bad commit > commit 4bfa373ed2bfd022628609751ff34b8e51e0c2b9 > Author: kugan > Date: Thu Aug 4 04:20:01 2016 +0000 > > gcc/ChangeLog: > > 2016-08-04 Kugan Vivekanandarajah > > * tree-vrp.c (set_value_range): Use vrp_equiv_obstack with > BITMAP_ALLOC. > (add_equivalence): Likewise. > (get_value_range): Allocate value range with vrp_value_range_pool. > (vrp_initialize): Initialize vrp_equiv_obstack for equiv > allocation. (vrp_finalize): Relase vrp_equiv_obstack and > vrp_value_range_pool. Ugh, this looks like a memory corruption issue. -- Eric Botcazou