From patchwork Fri Nov 23 14:45:49 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 10696041 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E49E616B1 for ; Fri, 23 Nov 2018 15:04:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D2FB42BE27 for ; Fri, 23 Nov 2018 15:04:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C74FF2C171; Fri, 23 Nov 2018 15:04:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 293D92BE27 for ; Fri, 23 Nov 2018 15:04:42 +0000 (UTC) Received: from localhost ([::1]:52852 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gQD0b-0000lf-4o for patchwork-qemu-devel@patchwork.kernel.org; Fri, 23 Nov 2018 10:04:41 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44174) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gQCj2-0000H3-KE for qemu-devel@nongnu.org; Fri, 23 Nov 2018 09:46:38 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gQCiz-0003eJ-TT for qemu-devel@nongnu.org; Fri, 23 Nov 2018 09:46:31 -0500 Received: from mail-wm1-x32b.google.com ([2a00:1450:4864:20::32b]:38760) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gQCiz-0003ar-KF for qemu-devel@nongnu.org; Fri, 23 Nov 2018 09:46:29 -0500 Received: by mail-wm1-x32b.google.com with SMTP id k198so12262466wmd.3 for ; Fri, 23 Nov 2018 06:46:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=tusyFviTXg3Z07DzPNMpcS9w3/27t1wRBGHj82A/Eoc=; b=X8pX7XW2D68tBuvkvpTczRUGbEqnYIFZ/7p2cDCqJ7fHJh3A2bHZRENZjsEFmlIzVr 3wjv5Jbik8sJVyN7BsJ1NMBu5h/zdOXNHbt4Wiv/Qtp5b7aff0SWZwmzVaAC+R3Mgsut 9BxITsXYFkCC870EQbYX9UH1yBZBFI8bUp6as= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=tusyFviTXg3Z07DzPNMpcS9w3/27t1wRBGHj82A/Eoc=; b=gXRJ/YoLpW+V41GmTqF6UWy+K9TaWBJIEXHb6IHygIfcCViIRWwhOq5yk2YodTxFMC AE0v+kIGlAebTNbAJamHenid4Wit0Sgh1PG9TT0O4PzCtsYrlnGrtWlOpo1LShwGIpDV FC21j3TDWyJsOizbil8YlbmDbeixnTraJHkFmjnq7brTI7qGxJKsh6vglkR3KFnpgzr+ KsCz9jrw/K+J64jaD6+a1Y6LwFcyQnRybtn6WqkkgpGRKlgs8EUuiTX6ancmwMuJa0rn DVUz18CitrtXBtQG1S4Ygx5uQLQpFGsq4yXLH1k3QlM+apQCxVJgcd1dcKfW3rdY1/g+ ydpA== X-Gm-Message-State: AGRZ1gIf01i90W+gLdb8X2kiLjARkorPZaZ7oP/gX+Zp2ap+YJi0NMIc PcjeiPUTflEdGisqKkApbqMslyDHf4ywDA== X-Google-Smtp-Source: AJdET5dNy7sPmgbDxxY6mX6ZtK7PivI0lJPyIDioFu0IuqwgfPUGDNmH+1uT7aNIJzkoitwIuOaMZA== X-Received: by 2002:a1c:af89:: with SMTP id y131mr13886578wme.137.1542984387614; Fri, 23 Nov 2018 06:46:27 -0800 (PST) Received: from cloudburst.twiddle.net ([195.77.246.50]) by smtp.gmail.com with ESMTPSA id p74sm10339630wmd.29.2018.11.23.06.46.26 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 23 Nov 2018 06:46:26 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Date: Fri, 23 Nov 2018 15:45:49 +0100 Message-Id: <20181123144558.5048-29-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20181123144558.5048-1-richard.henderson@linaro.org> References: <20181123144558.5048-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::32b Subject: [Qemu-devel] [PATCH for-4.0 v2 28/37] tcg/optimize: Optimize bswap X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alistair.Francis@wdc.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Somehow we forgot these operations, once upon a time. This will allow immediate stores to have their bswap optimized away. Signed-off-by: Richard Henderson --- tcg/optimize.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/tcg/optimize.c b/tcg/optimize.c index 5dbe11c3c8..6b98ec13e6 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -353,6 +353,15 @@ static TCGArg do_constant_folding_2(TCGOpcode op, TCGArg x, TCGArg y) CASE_OP_32_64(ext16u): return (uint16_t)x; + CASE_OP_32_64(bswap16): + return bswap16(x); + + CASE_OP_32_64(bswap32): + return bswap32(x); + + case INDEX_op_bswap64_i64: + return bswap64(x); + case INDEX_op_ext_i32_i64: case INDEX_op_ext32s_i64: return (int32_t)x; @@ -1105,6 +1114,9 @@ void tcg_optimize(TCGContext *s) CASE_OP_32_64(ext16s): CASE_OP_32_64(ext16u): CASE_OP_32_64(ctpop): + CASE_OP_32_64(bswap16): + CASE_OP_32_64(bswap32): + case INDEX_op_bswap64_i64: case INDEX_op_ext32s_i64: case INDEX_op_ext32u_i64: case INDEX_op_ext_i32_i64: