From patchwork Wed Oct 28 04:18:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Chenqun \(kuhn\)" X-Patchwork-Id: 301737 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 7F442C388F7 for ; Wed, 28 Oct 2020 04:22:18 +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 DE1A62076E for ; Wed, 28 Oct 2020 04:22:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DE1A62076E 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]:44852 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kXcyW-0004mX-NG for qemu-devel@archiver.kernel.org; Wed, 28 Oct 2020 00:22:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43554) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kXcve-0001l5-Lu; Wed, 28 Oct 2020 00:19:18 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:2485) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kXcvV-0007Zt-Jm; Wed, 28 Oct 2020 00:19:18 -0400 Received: from DGGEMS401-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4CLb1R4bndzhcd3; Wed, 28 Oct 2020 12:19:07 +0800 (CST) Received: from huawei.com (10.175.104.175) by DGGEMS401-HUB.china.huawei.com (10.3.19.201) with Microsoft SMTP Server id 14.3.487.0; Wed, 28 Oct 2020 12:18:55 +0800 From: Chen Qun To: , Subject: [PATCH 1/9] target/i386: silence the compiler warnings in gen_shiftd_rm_T1 Date: Wed, 28 Oct 2020 12:18:11 +0800 Message-ID: <20201028041819.2169003-2-kuhn.chenqun@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20201028041819.2169003-1-kuhn.chenqun@huawei.com> References: <20201028041819.2169003-1-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=szxga05-in.huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/28 00:16:39 X-ACL-Warn: Detected OS = Linux 3.1-3.10 [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, SPF_HELO_NONE=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: zhang.zhanghailiang@huawei.com, Euler Robot , Richard Henderson , ganqixin@huawei.com, Paolo Bonzini , Chen Qun , Eduardo Habkost Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The current "#ifdef TARGET_X86_64" statement affects the compiler's determination of fall through. When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed warning: target/i386/translate.c: In function ‘gen_shiftd_rm_T1’: target/i386/translate.c:1773:12: warning: this statement may fall through [-Wimplicit-fallthrough=] if (is_right) { ^ target/i386/translate.c:1782:5: note: here case MO_32: ^~~~ Reported-by: Euler Robot Signed-off-by: Chen Qun Reviewed-by: Richard Henderson Reviewed-by: Thomas Huth --- Cc: Paolo Bonzini Cc: Richard Henderson Cc: Eduardo Habkost --- target/i386/translate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/i386/translate.c b/target/i386/translate.c index caea6f5fb1..4c353427d7 100644 --- a/target/i386/translate.c +++ b/target/i386/translate.c @@ -1777,9 +1777,9 @@ static void gen_shiftd_rm_T1(DisasContext *s, MemOp ot, int op1, } else { tcg_gen_deposit_tl(s->T1, s->T0, s->T1, 16, 16); } - /* FALLTHRU */ -#ifdef TARGET_X86_64 + /* fall through */ case MO_32: +#ifdef TARGET_X86_64 /* Concatenate the two 32-bit values and use a 64-bit shift. */ tcg_gen_subi_tl(s->tmp0, count, 1); if (is_right) {