From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 25 May 2002 20:09:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 25 May 2002 20:09:01 -0400 Received: from jalon.able.es ([212.97.163.2]:56724 "EHLO jalon.able.es") by vger.kernel.org with ESMTP id ; Sat, 25 May 2002 20:09:00 -0400 Date: Sun, 26 May 2002 03:08:49 +0200 From: "J.A. Magallon" To: Ruth Ivimey-Cook Cc: Luigi Genoni , Dave Jones , "J.A. Magallon" , Luca Barbieri , Marcelo Tosatti , Linux-Kernel ML Subject: Re: [PATCH] [2.4] [2.5] [i386] Add support for GCC 3.1 -march=pentium{-mmx,3,4} Message-ID: <20020526010849.GA10643@werewolf.able.es> In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-Mailer: Balsa 1.3.6 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 2002.05.26 Ruth Ivimey-Cook wrote: >On Sun, 26 May 2002, Luigi Genoni wrote: >>On Sun, 26 May 2002, Dave Jones wrote: >>> On Sun, May 26, 2002 at 01:37:39AM +0200, J.A. Magallon wrote: >>> > Could you also split >>> > Pentium-Pro/Celeron/Pentium-II CONFIG_M686 >>> > into >>> > Pentium-Pro CONFIG_M686 >>> > Pentium-II/Celeron CONFIG_MPENTIUMII >>> There are also a few extra Athlon targets iirc. athlon-xp and the like, >>> which I'm not sure the purpose of. Some gcc know-all want to clue me in >>> to what these offer over -march=athlon ? >>> >>I do not know about the gcc options, but Athlon XP/MP has sse instruction, >>while tbird has not, so it could be relate to this. >> Problem is that CPU selection is not based on cpu itself, but in options offered by previous gcc compilers. I think that the menu should contain separate config options for each processor type, so it is easily modifiable for specific optimizations offered by new compilers (for example, gcc-3.1 splitting i686 in pentium-pro, p2, p3 and p4), or some braindead hacker can optimize code snippets for some kind of processor. -- J.A. Magallon # Let the source be with you... mailto:jamagallon@able.es Mandrake Linux release 8.3 (Cooker) for i586 Linux werewolf 2.4.18 #1 SMP sáb may 25 14:44:46 CEST 2002 i686