From patchwork Tue Aug 23 07:06:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?6ZKf5bGF5ZOy?= X-Patchwork-Id: 56939 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 436443858012 for ; Tue, 23 Aug 2022 07:07:02 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from smtpbgjp3.qq.com (smtpbgjp3.qq.com [54.92.39.34]) by sourceware.org (Postfix) with ESMTPS id A16053857C41 for ; Tue, 23 Aug 2022 07:06:44 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org A16053857C41 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=rivai.ai Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=rivai.ai X-QQ-mid: bizesmtp63t1661238400t1j1g94w Received: from server1.localdomain ( [42.247.22.66]) by bizesmtp.qq.com (ESMTP) with id ; Tue, 23 Aug 2022 15:06:38 +0800 (CST) X-QQ-SSF: 01400000002000C0I000B00A0000000 X-QQ-FEAT: CR3LFp2JE4mSz06+SS1LxnGqEwMDH485gCzdKqh8aXMrQ9jkm+bdRJU1oWF8Y NVUH+gTPERASCaoSBF3ptr16swpbMaySbUvxMhsmaEvRlYLKM4NVRiyX+Hadj/l17T7UVaT xr+yp5bnfm7NM9ub4mFcdY53Z8i9jkP8DsegrAi7C8b5l91S9J8brKuDvY1/gukfSQsFZge hOYEMbDag6st+Efstzbj+Igce17NthL2JAEEZZ4tBJUX/TRoeeKdhgd7PsD6+rf88xwE4Gf L1rN2XPvJsiXzQcf/kbgJDFPqlAnMsJpkKoiGtS561NxSxphr4R0iaFuPybvYfyjSXjSN33 mdctY3UnwazWjvE5/zRj/+WXmBT19JVivTP6icf9CDIDVrciHsaPLfL+lpjeMAMX/FP5luH X-QQ-GoodBg: 2 From: juzhe.zhong@rivai.ai To: gcc-patches@gcc.gnu.org Subject: [PATCH] middle-end: Fix unexpected warnings for RISC-V port. Date: Tue, 23 Aug 2022 15:06:31 +0800 Message-Id: <20220823070631.154633-1-juzhe.zhong@rivai.ai> X-Mailer: git-send-email 2.36.1 MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:rivai.ai:qybglogicsvr:qybglogicsvr7 X-Spam-Status: No, score=-12.7 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: rguenther@suse.de, zhongjuzhe Errors-To: gcc-patches-bounces+patchwork=sourceware.org@gcc.gnu.org Sender: "Gcc-patches" From: zhongjuzhe gcc/ChangeLog: * tree-vect-loop-manip.cc (vect_gen_vector_loop_niters): Simply initialize const_vf to 0. --- gcc/tree-vect-loop-manip.cc | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/gcc/tree-vect-loop-manip.cc b/gcc/tree-vect-loop-manip.cc index 86d2264054a..c3a24e6c39a 100644 --- a/gcc/tree-vect-loop-manip.cc +++ b/gcc/tree-vect-loop-manip.cc @@ -1977,8 +1977,9 @@ vect_gen_vector_loop_niters (loop_vec_info loop_vinfo, tree niters, } else ni_minus_gap = niters; - - unsigned HOST_WIDE_INT const_vf; + + /* To silence some unexpected warnings, simply initialize to 0. */ + unsigned HOST_WIDE_INT const_vf = 0; if (vf.is_constant (&const_vf) && !LOOP_VINFO_USING_PARTIAL_VECTORS_P (loop_vinfo)) {