From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from [140.186.70.92] (port=59793 helo=eggs.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1OKcR1-00087L-AM
	for qemu-devel@nongnu.org; Fri, 04 Jun 2010 15:20:07 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69)
	(envelope-from <blauwirbel@gmail.com>) id 1OKcQz-00039d-FZ
	for qemu-devel@nongnu.org; Fri, 04 Jun 2010 15:20:02 -0400
Received: from mail-pv0-f173.google.com ([74.125.83.173]:56284)
	by eggs.gnu.org with esmtp (Exim 4.69)
	(envelope-from <blauwirbel@gmail.com>) id 1OKcQz-00039K-BE
	for qemu-devel@nongnu.org; Fri, 04 Jun 2010 15:20:01 -0400
Received: by pvg12 with SMTP id 12so751496pvg.4
	for <qemu-devel@nongnu.org>; Fri, 04 Jun 2010 12:20:00 -0700 (PDT)
MIME-Version: 1.0
In-Reply-To: <1275524816-4187-2-git-send-email-rth@twiddle.net>
References: <1275524816-4187-1-git-send-email-rth@twiddle.net>
	<1275524816-4187-2-git-send-email-rth@twiddle.net>
From: Blue Swirl <blauwirbel@gmail.com>
Date: Fri, 4 Jun 2010 19:19:40 +0000
Message-ID: <AANLkTik8JClHDAYIihsGubyWK0uNVinfWEvwYet8sl6E@mail.gmail.com>
Subject: Re: [Qemu-devel] [PATCH 1/2] tcg: Add TYPE parameter to tcg_out_mov.
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Richard Henderson <rth@twiddle.net>
Cc: qemu-devel@nongnu.org, aurelien@aurel32.net

On Thu, Jun 3, 2010 at 12:26 AM, Richard Henderson <rth@twiddle.net> wrote:
> Mirror tcg_out_movi in having a TYPE parameter. =C2=A0This allows x86_64
> to perform the move at the proper width, which may elide a REX prefix.
>
> Introduce a TCG_TYPE_REG enumerator to represent the "native width"
> of the host register, and to distinguish the usage from "pointer data"
> as represented by the existing TCG_TYPE_PTR.
>
> Update all targets to match.
>
> Signed-off-by: Richard Henderson <rth@twiddle.net>

Sparc part looks fine to me.

> +
> + =C2=A0 =C2=A0/* An alias for the size of the native pointer. =C2=A0We d=
on't currently
> + =C2=A0 =C2=A0 =C2=A0 support any hosts with 64-bit registers and 32-bit=
 pointers. =C2=A0*/

Sparc32plus would match, though the ABI does not guarantee that higher
32 bits are preserved.