From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33503) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YrjCt-00082f-3P for qemu-devel@nongnu.org; Mon, 11 May 2015 04:36:59 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YrjCo-0001gw-1N for qemu-devel@nongnu.org; Mon, 11 May 2015 04:36:59 -0400 Received: from mail-wi0-x233.google.com ([2a00:1450:400c:c05::233]:35627) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YrjCn-0001gq-ME for qemu-devel@nongnu.org; Mon, 11 May 2015 04:36:53 -0400 Received: by widdi4 with SMTP id di4so95957932wid.0 for ; Mon, 11 May 2015 01:36:52 -0700 (PDT) Sender: Paolo Bonzini Message-ID: <55506A20.9030406@redhat.com> Date: Mon, 11 May 2015 10:36:48 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [RFC PATCH 25/34] arm: cpu: Move CPU_COMMON to front of env List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Crosthwaite , qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, edgari@xilinx.com, rth@twiddle.net, sorenb@xilinx.com, afaerber@suse.de On 11/05/2015 08:29, Peter Crosthwaite wrote: > To allow pointer casts to the the multi-arch CPUArchState which > contains just the CPU_COMMON components. > > Signed-off-by: Peter Crosthwaite This can cause worse performance, unfortunately, because of bigger offsets when registers are written back to env (at end of BB or due to spills). Paolo