From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52536) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZXFRJ-0007Kx-Ag for qemu-devel@nongnu.org; Wed, 02 Sep 2015 17:19:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZXFRE-0000CM-H1 for qemu-devel@nongnu.org; Wed, 02 Sep 2015 17:19:29 -0400 Received: from mail-pa0-x230.google.com ([2607:f8b0:400e:c03::230]:36073) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZXFRD-0000Bk-Sv for qemu-devel@nongnu.org; Wed, 02 Sep 2015 17:19:24 -0400 Received: by pacwi10 with SMTP id wi10so23061931pac.3 for ; Wed, 02 Sep 2015 14:19:21 -0700 (PDT) Sender: Richard Henderson References: <1437306632-20655-1-git-send-email-aurelien@aurel32.net> From: Richard Henderson Message-ID: <55E767D6.8080500@twiddle.net> Date: Wed, 2 Sep 2015 14:19:18 -0700 MIME-Version: 1.0 In-Reply-To: <1437306632-20655-1-git-send-email-aurelien@aurel32.net> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH] tcg/i386: omit a few REXW prefixes in softmmu code List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno , qemu-devel@nongnu.org On 07/19/2015 04:50 AM, Aurelien Jarno wrote: > When computing the TLB address we are likely to mask out the high > 32-bits by using shr + and. We can use 32-bit instructions in that > case. This saves 2 bytes per TLB access. > > Cc: Richard Henderson > Signed-off-by: Aurelien Jarno Applied to tcg-next. r~