From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 10476 invoked by alias); 26 Nov 2013 16:05:35 -0000 Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org Received: (qmail 10463 invoked by uid 89); 26 Nov 2013 16:05:34 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=1.2 required=5.0 tests=AWL,BAYES_20,RDNS_NONE autolearn=no version=3.3.2 X-HELO: mail-lb0-f173.google.com Received: from Unknown (HELO mail-lb0-f173.google.com) (209.85.217.173) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-SHA encrypted) ESMTPS; Tue, 26 Nov 2013 16:04:02 +0000 Received: by mail-lb0-f173.google.com with SMTP id u14so4574929lbd.18 for ; Tue, 26 Nov 2013 08:03:52 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=0LMtyM1lBlNkjxBWsxV3Qdl9pfCOZqNokKKlcltCbPk=; b=dUHZ/Zrdze3QXueNs46241+hPhCZ3zv/+wwyITER9z7O6ZWb3pWMPeE113O6qQ4DE2 C6+XGB4Ut8abtIOVLzKmQOpn6AbbkUO25M2lSTZ1PVL/5UHY+WQQQvRBtgFXYrwI7shh QO0N+iwDfg/AxpYLjtMOBK69fPiLQnlBJAskkLoC2j4VXr0zWQw7BaKo2xsG4XREZR/G zUDB5X3FBC9MiM1mE20b1ioz8CNMqA5x2aH7IFU0odw58YTlxUrEGwrsSqnhqF+ZvhCg oyyh8MWaFxrMzXUI2vn2CBwifu7MXCvjVwZrplzXhfQoRVEYY+Rm/wYpdutoNl3CR7XS d3ug== X-Gm-Message-State: ALoCoQkJMSRq2qSfLDwBRNM6713LCU6Er7U9/t7TmFy8vdnAZvoUiWOGYkYNFDanDcV+nHJKU6rE MIME-Version: 1.0 X-Received: by 10.112.143.3 with SMTP id sa3mr25418724lbb.12.1385481832193; Tue, 26 Nov 2013 08:03:52 -0800 (PST) Received: by 10.112.188.202 with HTTP; Tue, 26 Nov 2013 08:03:52 -0800 (PST) In-Reply-To: <35F5B26B-B1E5-40E3-A598-F715571B9522@comcast.net> References: <20131126032546.GX30563@lug-owl.de> <35F5B26B-B1E5-40E3-A598-F715571B9522@comcast.net> Date: Tue, 26 Nov 2013 16:05:00 -0000 Message-ID: Subject: Re: [buildrobot] pdp11-aout From: Joern Rennecke To: Paul Koning Cc: Jan-Benedict Glaw , "gcc@gcc.gnu.org Development" Content-Type: text/plain; charset=ISO-8859-1 X-IsSubscribed: yes X-SW-Source: 2013-11/txt/msg00534.txt.bz2 On 26 November 2013 15:55, Paul Koning wrote: > Is there a requirement that all targets must have branch cost that it, at least some of the time, 4 or greater? Not by design, although there seem to be a number of issues with supporting targets with a lower branch cost. E.g. consider LOGICAL_OP_NON_SHORT_CIRCUIT - the default of which also seems to assume superscalarity and a cheap flag-set operation - and its impact on/treatment by the test suite. > If so, why? If not, then I suppose cfgexpand.c could be changed to defeat this message I agree. , but how, or why? Changing this target macro into a target hook should do the trick.