From patchwork Wed Oct 10 16:02:43 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 190716 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 A98812C0086 for ; Thu, 11 Oct 2012 03:51:06 +1100 (EST) Received: from localhost ([::1]:59361 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TLylD-00079x-0x for incoming@patchwork.ozlabs.org; Wed, 10 Oct 2012 12:03:51 -0400 Received: from eggs.gnu.org ([208.118.235.92]:52888) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TLyke-0005xf-K0 for qemu-devel@nongnu.org; Wed, 10 Oct 2012 12:03:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TLykT-0007gX-KS for qemu-devel@nongnu.org; Wed, 10 Oct 2012 12:03:16 -0400 Received: from mail-pb0-f45.google.com ([209.85.160.45]:62773) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TLykT-0007dd-EG for qemu-devel@nongnu.org; Wed, 10 Oct 2012 12:03:05 -0400 Received: by mail-pb0-f45.google.com with SMTP id rp2so850998pbb.4 for ; Wed, 10 Oct 2012 09:03:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references; bh=D8aZCsflZHeckJHMBqdb2ZtOmSW0iFKYGyjiRVZKrAc=; b=Ndfjez2TVQGJ1Om13D3D98sqrWU2/Go9CdDm7qyEhYnCKCFgj1J4l4G0F5uC9Z5eZo fOYuFmnx89vhqCoPfmS/8z/7TJJ6ced1EB39J5fowLrcqGO9bzIgmStODv1Is0l+ts5P x6rJiXJR7RR/+6o2Uf04djH0EdxaZy8W55H3Ia0xcKrgs/QprQNjLvsd3wcNOwEWW2kx degVvlX/7pMY6fw2RLp2wLFFIGM30yaXM3nnvTakSQ3FIbiZaL4wRmBG3/9tF1WW/8iM HgOIkZRAMyD9W02HhIoi1mPKeDKpz3guK7cgo7k5O99LIMHgLmEzoDLSVObmnvQ4EIni CE6g== Received: by 10.66.86.42 with SMTP id m10mr33100369paz.3.1349884984997; Wed, 10 Oct 2012 09:03:04 -0700 (PDT) Received: from anchor.twiddle.home.com (50-194-63-110-static.hfc.comcastbusiness.net. [50.194.63.110]) by mx.google.com with ESMTPS id sj5sm1216694pbc.30.2012.10.10.09.03.04 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 10 Oct 2012 09:03:04 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Wed, 10 Oct 2012 09:02:43 -0700 Message-Id: <1349884967-4608-10-git-send-email-rth@twiddle.net> X-Mailer: git-send-email 1.7.11.4 In-Reply-To: <1349884967-4608-1-git-send-email-rth@twiddle.net> References: <1349884967-4608-1-git-send-email-rth@twiddle.net> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 209.85.160.45 Cc: Blue Swirl Subject: [Qemu-devel] [PATCH 09/13] tcg-sparc: Optimize setcond2 equality compare with 0. 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 Signed-off-by: Richard Henderson --- tcg/sparc/tcg-target.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c index f7d52d6..9c87cb6 100644 --- a/tcg/sparc/tcg-target.c +++ b/tcg/sparc/tcg-target.c @@ -693,9 +693,18 @@ static void tcg_out_setcond2_i32(TCGContext *s, TCGCond cond, TCGArg ret, switch (cond) { case TCG_COND_EQ: case TCG_COND_NE: - tcg_out_setcond_i32(s, cond, tmp, al, bl, blconst); - tcg_out_cmp(s, ah, bh, bhconst); - tcg_out_mov(s, TCG_TYPE_I32, ret, tmp); + if (bl == 0 && bh == 0) { + if (cond == TCG_COND_EQ) { + tcg_out_arith(s, TCG_REG_G0, al, ah, ARITH_ORCC); + tcg_out_movi(s, TCG_TYPE_I32, ret, 1); + } else { + tcg_out_arith(s, ret, al, ah, ARITH_ORCC); + } + } else { + tcg_out_setcond_i32(s, cond, tmp, al, bl, blconst); + tcg_out_cmp(s, ah, bh, bhconst); + tcg_out_mov(s, TCG_TYPE_I32, ret, tmp); + } tcg_out_movcc(s, TCG_COND_NE, MOVCC_ICC, ret, cond == TCG_COND_NE, 1); break;