From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49095) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZGMb7-0002Hc-Um for qemu-devel@nongnu.org; Sat, 18 Jul 2015 03:31:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZGMb4-0007Rr-LC for qemu-devel@nongnu.org; Sat, 18 Jul 2015 03:31:49 -0400 Received: from mail-wi0-x234.google.com ([2a00:1450:400c:c05::234]:35731) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZGMb4-0007Rm-D3 for qemu-devel@nongnu.org; Sat, 18 Jul 2015 03:31:46 -0400 Received: by wibxm9 with SMTP id xm9so54006199wib.0 for ; Sat, 18 Jul 2015 00:31:45 -0700 (PDT) Sender: Richard Henderson References: <1436958199-5181-1-git-send-email-aurelien@aurel32.net> <1436958199-5181-9-git-send-email-aurelien@aurel32.net> <55A8A2CB.70001@twiddle.net> <20150717103321.GA14985@aurel32.net> From: Richard Henderson Message-ID: <55A9FF1A.9030704@twiddle.net> Date: Sat, 18 Jul 2015 08:24:10 +0100 MIME-Version: 1.0 In-Reply-To: <20150717103321.GA14985@aurel32.net> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH RFC 8/9] tcg/optimize: do not simplify size changing moves List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno Cc: Paolo Bonzini , qemu-devel@nongnu.org On 07/17/2015 11:33 AM, Aurelien Jarno wrote: > For now I do wonder if we shouldn't get the size changing extu/exts > mandatory instead of reusing the 64-bit only version. This doesn't > change the generated code, at least on x86. I'd be surprised if it did anywhere. I don't mind starting with them being required, and then figuring out a way to optimize. r~