From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:51709) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UTxb7-0008KA-76 for qemu-devel@nongnu.org; Sun, 21 Apr 2013 12:58:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UTxb4-0002Ya-TO for qemu-devel@nongnu.org; Sun, 21 Apr 2013 12:58:41 -0400 Received: from mail-qc0-x22f.google.com ([2607:f8b0:400d:c01::22f]:36683) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UTxb4-0002YP-Os for qemu-devel@nongnu.org; Sun, 21 Apr 2013 12:58:38 -0400 Received: by mail-qc0-f175.google.com with SMTP id j3so2836024qcs.6 for ; Sun, 21 Apr 2013 09:58:38 -0700 (PDT) Sender: Richard Henderson Message-ID: <51741AB9.1080206@twiddle.net> Date: Sun, 21 Apr 2013 17:58:33 +0100 From: Richard Henderson MIME-Version: 1.0 References: <1364769305-3687-1-git-send-email-rth@twiddle.net> <1364769305-3687-10-git-send-email-rth@twiddle.net> <20130421103505.GC16361@ohm.aurel32.net> In-Reply-To: <20130421103505.GC16361@ohm.aurel32.net> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v5 09/19] tcg-arm: Implement deposit for armv7 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno Cc: qemu-devel@nongnu.org On 2013-04-21 11:35, Aurelien Jarno wrote: > Wouldn't it be better to only declare the zero constraint (using bfc in > that case), and let the middle-end to load the constant in other cases? Possibly. I wondered if the work of the extra constraint was worth the effort. r~