Message ID | 20231004080221.2702636-35-mjt@tls.msk.ru |
---|---|
State | New |
Headers | show
Return-Path: <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.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=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4S0nQ04mrPz1ypx for <incoming@patchwork.ozlabs.org>; Wed, 4 Oct 2023 19:08:40 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from <qemu-devel-bounces@nongnu.org>) id 1qnwu0-00067d-Mc; Wed, 04 Oct 2023 04:06:42 -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 <mjt@tls.msk.ru>) id 1qnwt7-0005iU-I9; Wed, 04 Oct 2023 04:05:48 -0400 Received: from isrv.corpit.ru ([86.62.121.231]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <mjt@tls.msk.ru>) id 1qnwt3-0002le-38; Wed, 04 Oct 2023 04:05:43 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 01B05275AF; Wed, 4 Oct 2023 11:02:30 +0300 (MSK) Received: from tls.msk.ru (mjt.wg.tls.msk.ru [192.168.177.130]) by tsrv.corpit.ru (Postfix) with SMTP id 5CC972CBE9; Wed, 4 Oct 2023 11:02:29 +0300 (MSK) Received: (nullmailer pid 2702856 invoked by uid 1000); Wed, 04 Oct 2023 08:02:21 -0000 From: Michael Tokarev <mjt@tls.msk.ru> To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Richard Henderson <richard.henderson@linaro.org>, =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <philmd@linaro.org>, Michael Tokarev <mjt@tls.msk.ru> Subject: [Stable-8.1.2 35/45] accel/tcg: Avoid load of icount_decr if unused Date: Wed, 4 Oct 2023 11:01:56 +0300 Message-Id: <20231004080221.2702636-35-mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.2 In-Reply-To: <qemu-stable-8.1.2-20231003193203@cover.tls.msk.ru> References: <qemu-stable-8.1.2-20231003193203@cover.tls.msk.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=86.62.121.231; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, 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: 2.1.29 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org |
Series |
Patch Round-up for stable 8.1.2, freeze on 2023-10-14
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expand
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diff --git a/accel/tcg/translator.c b/accel/tcg/translator.c index 1a6a5448c8..a3983019a5 100644 --- a/accel/tcg/translator.c +++ b/accel/tcg/translator.c @@ -49,12 +49,15 @@ bool translator_io_start(DisasContextBase *db) static TCGOp *gen_tb_start(uint32_t cflags) { - TCGv_i32 count = tcg_temp_new_i32(); + TCGv_i32 count = NULL; TCGOp *icount_start_insn = NULL; - tcg_gen_ld_i32(count, cpu_env, - offsetof(ArchCPU, neg.icount_decr.u32) - - offsetof(ArchCPU, env)); + if ((cflags & CF_USE_ICOUNT) || !(cflags & CF_NOIRQ)) { + count = tcg_temp_new_i32(); + tcg_gen_ld_i32(count, cpu_env, + offsetof(ArchCPU, neg.icount_decr.u32) - + offsetof(ArchCPU, env)); + } if (cflags & CF_USE_ICOUNT) { /*