From patchwork Thu Aug 13 07:37:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Chenqun \(kuhn\)" X-Patchwork-Id: 276619 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 041EAC433DF for ; Thu, 13 Aug 2020 07:43:03 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BF45D20771 for ; Thu, 13 Aug 2020 07:43:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BF45D20771 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:40418 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k67t8-0008UW-05 for qemu-devel@archiver.kernel.org; Thu, 13 Aug 2020 03:43:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40742) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k67p3-0008GX-B8; Thu, 13 Aug 2020 03:38:49 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:4233 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k67p1-0001mc-3c; Thu, 13 Aug 2020 03:38:49 -0400 Received: from DGGEMS402-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id EF14BCB1AF3474EBED6D; Thu, 13 Aug 2020 15:38:36 +0800 (CST) Received: from huawei.com (10.175.104.175) by DGGEMS402-HUB.china.huawei.com (10.3.19.202) with Microsoft SMTP Server id 14.3.487.0; Thu, 13 Aug 2020 15:38:30 +0800 From: Chen Qun To: , Subject: [PATCH 03/11] target/arm/translate-a64:Remove dead assignment in handle_scalar_simd_shli() Date: Thu, 13 Aug 2020 15:37:04 +0800 Message-ID: <20200813073712.4001404-4-kuhn.chenqun@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20200813073712.4001404-1-kuhn.chenqun@huawei.com> References: <20200813073712.4001404-1-kuhn.chenqun@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.104.175] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.191; envelope-from=kuhn.chenqun@huawei.com; helo=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/13 03:38:37 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , zhang.zhanghailiang@huawei.com, pannengyuan@huawei.com, qemu-arm@nongnu.org, Euler Robot , Chen Qun Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Clang static code analyzer show warning: target/arm/translate-a64.c:8635:14: warning: Value stored to 'tcg_rn' during its initialization is never read TCGv_i64 tcg_rn = new_tmp_a64(s); ^~~~~~ ~~~~~~~~~~~~~~ target/arm/translate-a64.c:8636:14: warning: Value stored to 'tcg_rd' during its initialization is never read TCGv_i64 tcg_rd = new_tmp_a64(s); ^~~~~~ ~~~~~~~~~~~~~~ There is a memory leak for the variable new_tmp_a64 "s". We should delete the assignment. Reported-by: Euler Robot Signed-off-by: Chen Qun --- Cc: Peter Maydell Cc: qemu-arm@nongnu.org --- target/arm/translate-a64.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index 534c3ff5f3..c83bb85e4e 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -8632,8 +8632,8 @@ static void handle_scalar_simd_shli(DisasContext *s, bool insert, int size = 32 - clz32(immh) - 1; int immhb = immh << 3 | immb; int shift = immhb - (8 << size); - TCGv_i64 tcg_rn = new_tmp_a64(s); - TCGv_i64 tcg_rd = new_tmp_a64(s); + TCGv_i64 tcg_rn; + TCGv_i64 tcg_rd; if (!extract32(immh, 3, 1)) { unallocated_encoding(s);