From patchwork Tue Aug 25 11:24:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen Qun X-Patchwork-Id: 1351001 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com 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 ozlabs.org (Postfix) with ESMTPS id 4BbRZb0JL4z9sTX for ; Tue, 25 Aug 2020 21:28:39 +1000 (AEST) Received: from localhost ([::1]:37088 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kAX81-0004jR-07 for incoming@patchwork.ozlabs.org; Tue, 25 Aug 2020 07:28:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46704) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kAX5n-0000SQ-DW; Tue, 25 Aug 2020 07:26:19 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:4266 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 1kAX5k-0006f0-Aw; Tue, 25 Aug 2020 07:26:19 -0400 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 3D20EAFCC1F1C16209A2; Tue, 25 Aug 2020 19:26:09 +0800 (CST) Received: from huawei.com (10.175.104.175) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.487.0; Tue, 25 Aug 2020 19:25:59 +0800 From: Chen Qun To: , Subject: [PATCH v2 03/10] target/arm/translate-a64:Remove dead assignment in handle_scalar_simd_shli() Date: Tue, 25 Aug 2020 19:24:40 +0800 Message-ID: <20200825112447.126308-4-kuhn.chenqun@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20200825112447.126308-1-kuhn.chenqun@huawei.com> References: <20200825112447.126308-1-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 = 2020/08/25 07:26:10 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=0.001, RCVD_IN_MSPIKE_WL=0.001, 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+incoming=patchwork.ozlabs.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 Reviewed-by: Peter Maydell --- 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);