From patchwork Mon Sep 7 18:04:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 1359160 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=fail (p=none dis=none) header.from=linaro.org Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=rPtdMp7e; dkim-atps=neutral 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 4Blbmk0MWkz9sTS for ; Tue, 8 Sep 2020 04:05:42 +1000 (AEST) Received: from localhost ([::1]:45890 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kFLWN-0003vI-TW for incoming@patchwork.ozlabs.org; Mon, 07 Sep 2020 14:05:39 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38726) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kFLVp-0003hh-Cx for qemu-devel@nongnu.org; Mon, 07 Sep 2020 14:05:05 -0400 Received: from mail-pg1-x541.google.com ([2607:f8b0:4864:20::541]:45835) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kFLVn-0002N3-IM for qemu-devel@nongnu.org; Mon, 07 Sep 2020 14:05:04 -0400 Received: by mail-pg1-x541.google.com with SMTP id 67so8311106pgd.12 for ; Mon, 07 Sep 2020 11:05:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=hA0Q3ZvS9ZMt8mExwk35iB2Bwjpw4Nf408fgP9XSgOU=; b=rPtdMp7eNJz5keoSP9ZEi4Wvjov67zAX1y66sVpZQJmBcEDLqLW33k13E+ZegVMgJO 8LIVG81bPdD/rwhqb4mYPU4+Q/vjN2edtfwF4vBR6ZYVWCPnd692socGIcZ0Aw+9bGuF Z4TEay5jXhIwuoE4IV5NaoxNu4FM4V4YX42IV+zhR62BY2Q0meokYw6gGkyOsgX/zypP NZYlKgZqKo4/sIap6ibr5dy43SI9oOYBoCkfFtupAoaYY7cuxbVmHFmqRuFE/hKBvRbC TXlhg4Dd+D9FDKZEySjRklZYG42r1kNvf7XyrNuYvalxyt9flLo0gKtJwERlzWRJrdiG RrCg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=hA0Q3ZvS9ZMt8mExwk35iB2Bwjpw4Nf408fgP9XSgOU=; b=GXI7OTWE0Fd9gv4tDaHULNz1Tzy/PT3czl/mhnOT4PHlekOcI1iji1Y5GmpbhpIBvK ikz2zYIeWe4pDsoZCcTBXS9GyHkTQUPPSMCY6wuco8QFNIGuTGJyv1cXc05U9zjcAKRd bTOwYI6u/s8U/EXdC8IZUk4Ae1PrfJXiR2GtxlUQzJ/ogQ9ma3kB8XYuAC8vUyiCHJ4L sivkhAj4cNpeyYuuCN/DMwN38+grCYK6CqjrNVEyCw/f5TN/O73IXZjs2SVX1QITqUg8 c6O4ZhUVpdgpcQolGoCX8FPUl1xzbiPtyqzOKmpjy5+ifbgPXWs85onF81kJf8FJoL+H mFuA== X-Gm-Message-State: AOAM532DZ7y2fAB1ZS7m1QMdRyhLuZmNAEw5tbT2M5oyJet13BAC9sCN L5fxeq/DAiEp2XmNmdqDp6REUm8vm+YXmQ== X-Google-Smtp-Source: ABdhPJx7EZegicwKi+NS0uImtPeBsNWUtIKAp8qlOZxrNtCbVjjdVK37nVKwq/Rf8xaccL7yH3fS+w== X-Received: by 2002:a63:3ecb:: with SMTP id l194mr2213855pga.394.1599501901561; Mon, 07 Sep 2020 11:05:01 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id v6sm11367768pfi.38.2020.09.07.11.05.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Sep 2020 11:05:00 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PULL 10/19] target/microblaze: Use tcg_gen_lookup_and_goto_ptr Date: Mon, 7 Sep 2020 11:04:50 -0700 Message-Id: <20200907180459.29025-1-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200907175102.28027-1-richard.henderson@linaro.org> References: <20200907175102.28027-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::541; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x541.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: "Edgar E . Iglesias" , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Normal indirect jumps, or page-crossing direct jumps, can use tcg_gen_lookup_and_goto_ptr to avoid returning to the main loop simply to find an existing TB for the next pc. Reviewed-by: Edgar E. Iglesias Tested-by: Edgar E. Iglesias Signed-off-by: Richard Henderson --- target/microblaze/translate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c index da84fdb20b..d98572fab9 100644 --- a/target/microblaze/translate.c +++ b/target/microblaze/translate.c @@ -147,7 +147,7 @@ static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest) tcg_gen_exit_tb(dc->base.tb, n); } else { tcg_gen_movi_i32(cpu_pc, dest); - tcg_gen_exit_tb(NULL, 0); + tcg_gen_lookup_and_goto_ptr(); } dc->base.is_jmp = DISAS_NORETURN; } @@ -1803,7 +1803,7 @@ static void mb_tr_tb_stop(DisasContextBase *dcb, CPUState *cs) if (unlikely(cs->singlestep_enabled)) { gen_raise_exception(dc, EXCP_DEBUG); } else { - tcg_gen_exit_tb(NULL, 0); + tcg_gen_lookup_and_goto_ptr(); } return;