From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 72640 invoked by alias); 6 Nov 2015 12:24:04 -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 72568 invoked by uid 89); 6 Nov 2015 12:24:01 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.7 required=5.0 tests=AWL,BAYES_00,SPF_PASS autolearn=ham version=3.3.2 X-HELO: eu-smtp-delivery-143.mimecast.com Received: from eu-smtp-delivery-143.mimecast.com (HELO eu-smtp-delivery-143.mimecast.com) (207.82.80.143) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Fri, 06 Nov 2015 12:24:00 +0000 Received: from cam-owa1.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.140]) by eu-smtp-1.mimecast.com with ESMTP id uk-mta-2-wljopSQsRhOYgjZqkZGdlw-1; Fri, 06 Nov 2015 12:23:55 +0000 Received: from e105915-lin.cambridge.arm.com ([10.1.2.79]) by cam-owa1.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.3959); Fri, 6 Nov 2015 12:23:55 +0000 Subject: Re: [PATCH] Fix PR68067 To: Richard Biener References: <563C817D.1060107@arm.com> Cc: "gcc-patches@gcc.gnu.org" From: Alan Lawrence Message-ID: <563C9BDA.9080002@arm.com> Date: Fri, 06 Nov 2015 12:24:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: X-MC-Unique: wljopSQsRhOYgjZqkZGdlw-1 Content-Type: text/plain; charset=WINDOWS-1252; format=flowed Content-Transfer-Encoding: quoted-printable X-IsSubscribed: yes X-SW-Source: 2015-11/txt/msg00608.txt.bz2 On 06/11/15 10:39, Richard Biener wrote: >> ../spec2000/benchspec/CINT2000/254.gap/src/polynom.c:358:11: error: loca= tion >> references block not in block tree >> l1_279 =3D PHI <1(28), l1_299(33)> > > ^^^ > > this is the error to look at! It means that the GC heap will be corrupted > quite easily. Thanks, I'll have a go at that. -fdump-tree-alias is also suspicious, hinting that that does more than just= =20 print. (How many bugs here??) > Interesting would be for which pass this happens - just print > *pass at this point. FWIW - unswitch. (A long time after -fdump-tree-alias!) Cheers, Alan