From patchwork Thu Sep 27 01:55:38 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 187266 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 0144E2C00AE for ; Thu, 27 Sep 2012 12:53:01 +1000 (EST) Received: from localhost ([::1]:36635 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TH3LC-0002pe-9U for incoming@patchwork.ozlabs.org; Wed, 26 Sep 2012 21:56:38 -0400 Received: from eggs.gnu.org ([208.118.235.92]:33803) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TH3KZ-0001EE-SE for qemu-devel@nongnu.org; Wed, 26 Sep 2012 21:56:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TH3KY-0005wf-Qe for qemu-devel@nongnu.org; Wed, 26 Sep 2012 21:55:59 -0400 Received: from mail-da0-f45.google.com ([209.85.210.45]:43496) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TH3KY-0005kA-KG for qemu-devel@nongnu.org; Wed, 26 Sep 2012 21:55:58 -0400 Received: by mail-da0-f45.google.com with SMTP id n15so256012dad.4 for ; Wed, 26 Sep 2012 18:55:58 -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=UR43f1+jbHcsFQ3iiQ+ikZ1ixkr1uchhEzpetoRJDOc=; b=WcanzB1/u6gNvC2AjrE+GvX0DL3fDnvulNkTyixDK8M+BcwRsVVDMDYtzzdQjIaQzY RzOzfzJestxlSGpzWOwEB1txW8aHytw5Jj45mDxsGMC/vuyUOmvMA+jO7+5aI5G6KydH dqsa4Sgx52f/voRXtxXkIjecYfeiNPi3mOny2flFIxgvtwcE2iTLJx5+G+LO4HaHMnDZ 3p6zT38xo0KEUL2Gxzo/36mA4Fkuo0TCmIpj0n/y9s75Z/IaIh7km6qhZgnD9td1NXxE j95pyH1iOCSPoSDRPmSMZg6PQVi4W2jxszq1I+oZRYuKxXhf6h1jTCNhTJjkALIxoSLb zD1A== Received: by 10.68.237.3 with SMTP id uy3mr7330907pbc.30.1348710958187; Wed, 26 Sep 2012 18:55:58 -0700 (PDT) Received: from anchor.twiddle.home.com ([173.160.232.49]) by mx.google.com with ESMTPS id o1sm2830071pax.21.2012.09.26.18.55.57 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 26 Sep 2012 18:55:57 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Wed, 26 Sep 2012 18:55:38 -0700 Message-Id: <1348710942-3040-9-git-send-email-rth@twiddle.net> X-Mailer: git-send-email 1.7.11.4 In-Reply-To: <1348710942-3040-1-git-send-email-rth@twiddle.net> References: <1348710942-3040-1-git-send-email-rth@twiddle.net> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 209.85.210.45 Cc: Blue Swirl Subject: [Qemu-devel] [PATCH 08/12] 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 b1f3eaf..1618996 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;