From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 28918 invoked by alias); 29 Nov 2012 08:57:28 -0000 Received: (qmail 28909 invoked by uid 22791); 29 Nov 2012 08:57:26 -0000 X-SWARE-Spam-Status: No, hits=-5.2 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,KHOP_RCVD_TRUST,KHOP_THREADED,RCVD_IN_DNSWL_LOW,RCVD_IN_HOSTKARMA_YE X-Spam-Check-By: sourceware.org Received: from mail-lb0-f175.google.com (HELO mail-lb0-f175.google.com) (209.85.217.175) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 29 Nov 2012 08:57:20 +0000 Received: by mail-lb0-f175.google.com with SMTP id gg13so8602941lbb.20 for ; Thu, 29 Nov 2012 00:57:19 -0800 (PST) Received: by 10.152.106.110 with SMTP id gt14mr20729506lab.1.1354179439232; Thu, 29 Nov 2012 00:57:19 -0800 (PST) MIME-Version: 1.0 Received: by 10.112.88.99 with HTTP; Thu, 29 Nov 2012 00:56:38 -0800 (PST) In-Reply-To: References: <20121126142843.GH17362@redhat.com> <1544820.Re9E01eJrW@polaris> <20121128182457.GB26585@redhat.com> From: Steven Bosscher Date: Thu, 29 Nov 2012 08:57:00 -0000 Message-ID: Subject: Re: [PATCH] Don't bypass blocks with multiple latch edges (PR middle-end/54838) To: Richard Biener Cc: Marek Polacek , Eric Botcazou , gcc-patches@gcc.gnu.org Content-Type: text/plain; charset=ISO-8859-1 X-IsSubscribed: yes 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 X-SW-Source: 2012-11/txt/msg02394.txt.bz2 On Thu, Nov 29, 2012 at 9:34 AM, Richard Biener wrote: > On Wed, Nov 28, 2012 at 7:24 PM, Marek Polacek wrote: >> I admit I'm not sure what to look at, maybe cprop should have in >> properties_destroyed PROP_loops? Well, then we need to remove one >> assert in loop-init.c. So something like: > > Definitely not - that means to not preserve loops until after cprop. The goal > is to preserve loops everywhere! It'd be nice if this was documented somewhere... Ciao! Steven