From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 797 invoked by alias); 9 Dec 2001 22:55:00 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 669 invoked from network); 9 Dec 2001 22:53:41 -0000 Received: from unknown (HELO hiauly1.hia.nrc.ca) (132.246.100.193) by sources.redhat.com with SMTP; 9 Dec 2001 22:53:41 -0000 Received: from hiauly1.hia.nrc.ca (localhost [127.0.0.1]) by hiauly1.hia.nrc.ca (8.12.0.Beta16/8.12.0.Beta16) with ESMTP id fB9Mr37c013006; Sun, 9 Dec 2001 17:53:03 -0500 (EST) Received: (from dave@localhost) by hiauly1.hia.nrc.ca (8.12.0.Beta16/8.12.0.Beta16) id fB9Mr3vN013005; Sun, 9 Dec 2001 17:53:03 -0500 (EST) Message-Id: <200112092253.fB9Mr3vN013005@hiauly1.hia.nrc.ca> Subject: Re: PATCH: Check all insns in fallthru to see if label is mentioned To: dave@hiauly1.hia.nrc.ca (John David Anglin) Date: Sun, 09 Dec 2001 14:55:00 -0000 From: "John David Anglin" Cc: rth@redhat.com, gcc-patches@gcc.gnu.org, hiller@redhat.com In-Reply-To: from "John David Anglin" at Dec 8, 2001 12:22:35 pm X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-SW-Source: 2001-12/txt/msg01032.txt.bz2 > There might be two regressions: > > FAIL: gcc.c-torture/execute/strct-pack-1.c execution, -O2 > FAIL: gcc.c-torture/execute/strct-pack-1.c execution, -Os > > These started failing in execution at some point after Dec. 1. It will > be a few days before I can examine these in more detail. It is my guess that these failures are due to the "enhanced structure offset tracking" patch. In the -O2 assembler output, we have ldi 1,%r20 .stabn 68,0,20,L$M7-main L$M7: ldw -120(%r30),%r21 sth %r20,-120(%r30) .stabn 68,0,20,L$M11-main L$M11: stw %r22,-112(%r30) stw %r21,-120(%r30) The halfword store of r20 gets moved downward, after the load of r21. This occurs in the ce2 pass. Dave -- J. David Anglin dave.anglin@nrc.ca National Research Council of Canada (613) 990-0752 (FAX: 952-6605)