From patchwork Fri Sep 7 13:16:27 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aurelien Jarno X-Patchwork-Id: 182369 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 7AB372C0080 for ; Fri, 7 Sep 2012 23:39:36 +1000 (EST) Received: from localhost ([::1]:48290 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1T9yR1-0004nm-M8 for incoming@patchwork.ozlabs.org; Fri, 07 Sep 2012 09:17:23 -0400 Received: from eggs.gnu.org ([208.118.235.92]:57130) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1T9yQO-0002zT-Hq for qemu-devel@nongnu.org; Fri, 07 Sep 2012 09:16:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1T9yQJ-0000tV-Ak for qemu-devel@nongnu.org; Fri, 07 Sep 2012 09:16:44 -0400 Received: from hall.aurel32.net ([88.191.126.93]:37143) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1T9yQJ-0000tI-5O for qemu-devel@nongnu.org; Fri, 07 Sep 2012 09:16:39 -0400 Received: from [46.27.142.81] (helo=ohm.aurel32.net) by hall.aurel32.net with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from ) id 1T9yQI-00040j-FE; Fri, 07 Sep 2012 15:16:38 +0200 Received: from aurel32 by ohm.aurel32.net with local (Exim 4.80) (envelope-from ) id 1T9yQE-0006Ox-4k; Fri, 07 Sep 2012 15:16:34 +0200 From: Aurelien Jarno To: qemu-devel@nongnu.org Date: Fri, 7 Sep 2012 15:16:27 +0200 Message-Id: <1347023792-24045-5-git-send-email-aurelien@aurel32.net> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1347023792-24045-1-git-send-email-aurelien@aurel32.net> References: <1347023792-24045-1-git-send-email-aurelien@aurel32.net> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 88.191.126.93 Cc: Aurelien Jarno Subject: [Qemu-devel] [PATCH v2 4/9] tcg/optimize: simplify and r, a, 0 cases X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org and r, a, 0 is equivalent to a movi r, 0. Reviewed-by: Richard Henderson Signed-off-by: Aurelien Jarno --- tcg/optimize.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tcg/optimize.c b/tcg/optimize.c index 0db849e..c12cb2b 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -360,6 +360,7 @@ static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t *tcg_opc_ptr, /* Simplify expression for "op r, a, 0 => movi r, 0" cases */ switch (op) { + CASE_OP_32_64(and): CASE_OP_32_64(mul): if ((temps[args[2]].state == TCG_TEMP_CONST && temps[args[2]].val == 0)) {