From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758128Ab2BISH2 (ORCPT ); Thu, 9 Feb 2012 13:07:28 -0500 Received: from mx1.redhat.com ([209.132.183.28]:24456 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753239Ab2BISH1 (ORCPT ); Thu, 9 Feb 2012 13:07:27 -0500 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: References: <20120209154819.32070.93358.stgit@warthog.procyon.org.uk> <1328804920.6099.3.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <7095.1328809567@redhat.com> To: Linus Torvalds Cc: dhowells@redhat.com, Eric Dumazet , adobriyan@gmail.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Reduce the number of expensive division instructions done by _parse_integer() Date: Thu, 09 Feb 2012 18:07:21 +0000 Message-ID: <8689.1328810841@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Linus Torvalds wrote: > Bah. The constant is hoisted out of the loop on anything that has > enough registers - and "cannot generate constants" is almost > universally associated with "fair amount of registers". True. Do you want me to attach my patch description to your patch, or do you want to do that? David