From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 5239 invoked by alias); 7 Sep 2015 17:54:16 -0000 Mailing-List: contact gcc-help-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-help-owner@gcc.gnu.org Received: (qmail 5227 invoked by uid 89); 7 Sep 2015 17:54:15 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.6 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.2 X-HELO: mail-io0-f169.google.com Received: from mail-io0-f169.google.com (HELO mail-io0-f169.google.com) (209.85.223.169) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-GCM-SHA256 encrypted) ESMTPS; Mon, 07 Sep 2015 17:54:14 +0000 Received: by iofh134 with SMTP id h134so94247983iof.0 for ; Mon, 07 Sep 2015 10:54:12 -0700 (PDT) X-Received: by 10.107.153.74 with SMTP id b71mr29749954ioe.23.1441648452252; Mon, 07 Sep 2015 10:54:12 -0700 (PDT) Received: from [192.168.0.5] (cpe-98-30-246-22.cinci.res.rr.com. [98.30.246.22]) by smtp.googlemail.com with ESMTPSA id qq7sm500839igb.13.2015.09.07.10.54.11 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 07 Sep 2015 10:54:11 -0700 (PDT) Subject: Fwd: meaning of -falign-loops=12 References: <55EDB414.60105@aol.com> To: gcc-help From: Tim Prince X-Forwarded-Message-Id: <55EDB414.60105@aol.com> Message-ID: <55EDCF41.9050602@gmail.com> Date: Mon, 07 Sep 2015 17:54:00 -0000 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <55EDB414.60105@aol.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-SW-Source: 2015-09/txt/msg00020.txt.bz2 Hoping to change the maxskip setting from 10 to 12 (-march=haswell), I set -falign-loops=12 and found that the max_skip value is removed from .s output. I see that max_skip is initialized in i386.c (for the case where -falign-loops is not set) but thought there might be a compile-time option. I rebuilt gcc after changing the align_loop_max_skip field to 12 in config/i386/i386.c but it had no effect. -- Tim Prince