Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757941AbXJYSdr (ORCPT ); Thu, 25 Oct 2007 14:33:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753344AbXJYSdj (ORCPT ); Thu, 25 Oct 2007 14:33:39 -0400 Received: from el-out-1112.google.com ([209.85.162.182]:12328 "EHLO el-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753340AbXJYSdi (ORCPT ); Thu, 25 Oct 2007 14:33:38 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:sender:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=spSaUEsgK7Eqf2rG64QryRsk4sRF3NHka2k0Ixnbyh0gngAV+iA4tIT57Q8LepQSJJh1/TRPzWkvctkoqHJv1O0gf8eT9e0cUB53yfthbZuZCV0BUNwRqSuwx+1qG9FZ/QwvHTewqhWcOYmXcf/t8nJTAznpGQyIiLfXjuPSqDY= Message-ID: Date: Thu, 25 Oct 2007 19:33:35 +0100 From: "Michael Lothian" To: linux-kernel@vger.kernel.org Subject: Possibility of adding -march=native to x86 In-Reply-To: <0EC33A59AA72084CA28B83816B40929F02682BB3@REEDXCLSXM01V03.rbsres01.net> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <0EC33A59AA72084CA28B83816B40929F02682BB3@REEDXCLSXM01V03.rbsres01.net> X-Google-Sender-Auth: c71142b8180e2085 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 589 Lines: 17 Hi I was wondering if it was possible to add -march=native support to the processor options of the new x86 architecture if gcc 4.2 or greater is being used. I'm not suggesting this should be a default at all, merely an extra option similar to selecting P4, Athlon or even -Os. I've manually tried this flag at home with no ill effects. Mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/