From nobody Sun May 5 22:24:36 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=linux.alibaba.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1679374467929233.57302298421678; Mon, 20 Mar 2023 21:54:27 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1peU0c-0004JV-Ts; Tue, 21 Mar 2023 00:54:07 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1peU0V-0004J3-8X for qemu-devel@nongnu.org; Tue, 21 Mar 2023 00:54:00 -0400 Received: from out30-97.freemail.mail.aliyun.com ([115.124.30.97]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1peU0R-0007nW-MH for qemu-devel@nongnu.org; Tue, 21 Mar 2023 00:53:58 -0400 Received: from L-PF1D6DP4-1208.hz.ali.com(mailfrom:zhiwei_liu@linux.alibaba.com fp:SMTPD_---0VeLfJe8_1679374426) by smtp.aliyun-inc.com; Tue, 21 Mar 2023 12:53:47 +0800 X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R491e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=ay29a033018046059; MF=zhiwei_liu@linux.alibaba.com; NM=1; PH=DS; RN=3; SR=0; TI=SMTPD_---0VeLfJe8_1679374426; From: LIU Zhiwei To: qemu-devel@nongnu.org Cc: richard.henderson@linaro.org, LIU Zhiwei Subject: [PATCH] tcg/tcg: Avoid TS_DEAD for basic block ending Date: Tue, 21 Mar 2023 12:53:40 +0800 Message-Id: <20230321045340.838-1-zhiwei_liu@linux.alibaba.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=115.124.30.97; envelope-from=zhiwei_liu@linux.alibaba.com; helo=out30-97.freemail.mail.aliyun.com X-Spam_score_int: -98 X-Spam_score: -9.9 X-Spam_bar: --------- X-Spam_report: (-9.9 / 5.0 requ) BAYES_00=-1.9, ENV_AND_HDR_SPF_MATCH=-0.5, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001, USER_IN_DEF_SPF_WL=-7.5 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1679374469205100001 Content-Type: text/plain; charset="utf-8" TS_DEAD means we will release the register allocated for this temporary. But at basic block ending, we can still use the allocted register. Signed-off-by: LIU Zhiwei --- tcg/tcg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tcg/tcg.c b/tcg/tcg.c index bb52bc060b..0c93e6e6f8 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -2822,7 +2822,7 @@ static void la_bb_end(TCGContext *s, int ng, int nt) case TEMP_FIXED: case TEMP_GLOBAL: case TEMP_TB: - state =3D TS_DEAD | TS_MEM; + state =3D TS_MEM; break; case TEMP_EBB: case TEMP_CONST: --=20 2.17.1