Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753917AbZKSRhL (ORCPT ); Thu, 19 Nov 2009 12:37:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753350AbZKSRhK (ORCPT ); Thu, 19 Nov 2009 12:37:10 -0500 Received: from one.firstfloor.org ([213.235.205.2]:37403 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753274AbZKSRhJ (ORCPT ); Thu, 19 Nov 2009 12:37:09 -0500 To: Richard Guenther Cc: "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , LKML , Andrew Morton , Heiko Carstens , feng.tang@intel.com, "Fr??d??ric Weisbecker" , Steven Rostedt , Peter Zijlstra , jakub@redhat.com, gcc@gcc.gnu.org Subject: Re: BUG: GCC-4.4.x changes the function frame on some functions From: Andi Kleen References: <20091119072040.GA23579@elte.hu> <4B056820.1050104@zytor.com> <84fc9c000911190749y294381a2q16f4547991525cee@mail.gmail.com> Date: Thu, 19 Nov 2009 18:37:11 +0100 In-Reply-To: <84fc9c000911190749y294381a2q16f4547991525cee@mail.gmail.com> (Richard Guenther's message of "Thu, 19 Nov 2009 16:49:57 +0100") Message-ID: <87tywq4drs.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/22.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 489 Lines: 16 Richard Guenther writes: > > It's likely because you have long long vars on the stack which is > faster when they are aligned. It's not faster for 32bit. -Andi -- ak@linux.intel.com -- Speaking for myself only. -- 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/