From mboxrd@z Thu Jan 1 00:00:00 1970 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=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 30DACC433B4 for ; Wed, 19 May 2021 18:58:37 +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 B497D6109F for ; Wed, 19 May 2021 18:58:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B497D6109F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:38016 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ljROt-0005CE-Mj for qemu-devel@archiver.kernel.org; Wed, 19 May 2021 14:58:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51642) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ljQyk-0004Em-MZ for qemu-devel@nongnu.org; Wed, 19 May 2021 14:31:34 -0400 Received: from mail-oi1-x230.google.com ([2607:f8b0:4864:20::230]:33469) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1ljQyX-0005kp-AJ for qemu-devel@nongnu.org; Wed, 19 May 2021 14:31:34 -0400 Received: by mail-oi1-x230.google.com with SMTP id b25so14061177oic.0 for ; Wed, 19 May 2021 11:31:17 -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=ppegi43nBBiUhTlh14mXrYNLMdDVV4yeu967Ro8CEyE=; b=ChABmZJzZ07FBQMY2bT1o4YjK4a0kjdT9w6RZkx3gsBGSnFngaeC7oGikOXGUqYguP 8WsyzVvFgxk7HwB2+bRZW9rHvXDQviog4xMu+9z11/s5S8jvO9nl7KsfGPZPLaXDH/N2 7qPWxFZ0AtQWExh94mLO8YS5KD5R6H+94xpmUnPBrXBktCZObS0vKlvamgpDjnY30C5n xO30VGopal4QpY+2Vty9j/iufTrnOKaoOeP74Y88oIH4pETEDIrSDoAIY9liqp8b1kLm WCyXOMMaQHPRvd8exbNL9fEuMMpvA8FxGCtz3PE31HfAvwOEj4zAcTcNUFyOnhmaoELf 9yjw== 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=ppegi43nBBiUhTlh14mXrYNLMdDVV4yeu967Ro8CEyE=; b=RfKdm8oFes2PtGnY7Oqrtojql7T4PPowfo7uqe3Lkhwcnjm/Nu9p2jI/5z1divneu2 cJbXqsUy4X4u1HCa5mzehwwXze2yakp5KK1xyLpNHw/aUJ2OU11b5AuV//7DsXD5iXkc Hu344eDgxS7/5VeEgthohvyPSeQolBFkThirFiFl/N9yYKqZOwVYyJU77ESJLOK0G8fP gQxxho6CbtGhkMYEZmS00xwmhBh/YAMCBp38+PRsu5Aj1vdgZpsm8LS827wGLuBAKKbM LWMVdklfSdUoIyvNsAidfUJoFza4xzaY5ZaR97FqfDGw4HMG/ki+mLqwH4W9WOsjjAWR Fjyw== X-Gm-Message-State: AOAM5324Se0RDlhIyS+ALx/oE3LOOJ7v4UmnA8fFkwrv/8lo455EopCU iYXRTz13eRHtb0JZyhi0VwwIFZHxEXP2hfKq X-Google-Smtp-Source: ABdhPJyNosnelrgQB4+aAWE86bNJup6o10dxuCnmhVbXI9a6pMkHjWlcAE+/Pkw294HCRNTpAk7hhw== X-Received: by 2002:a05:6808:d:: with SMTP id u13mr378932oic.103.1621449077251; Wed, 19 May 2021 11:31:17 -0700 (PDT) Received: from localhost.localdomain ([45.235.253.15]) by smtp.gmail.com with ESMTPSA id l9sm28428oou.43.2021.05.19.11.31.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 May 2021 11:31:16 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PULL 25/50] target/i386: Leave TF in DisasContext.flags Date: Wed, 19 May 2021 13:30:25 -0500 Message-Id: <20210519183050.875453-26-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210519183050.875453-1-richard.henderson@linaro.org> References: <20210519183050.875453-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::230; envelope-from=richard.henderson@linaro.org; helo=mail-oi1-x230.google.com 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: peter.maydell@linaro.org, Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" It's just as easy to clear the flag with AND than assignment. In two cases the test for the bit can be folded together with the test for HF_INHIBIT_IRQ_MASK. Signed-off-by: Richard Henderson Reviewed-by: Paolo Bonzini Message-Id: <20210514151342.384376-26-richard.henderson@linaro.org> --- target/i386/tcg/translate.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index 847502046f..3f6214c624 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -101,7 +101,6 @@ typedef struct DisasContext { uint8_t vex_v; /* vex vvvv register, without 1's complement. */ CCOp cc_op; /* current CC operation */ bool cc_op_dirty; - int tf; /* TF cpu flag */ int jmp_opt; /* use direct block chaining for direct jumps */ int repz_opt; /* optimize jumps within repz instructions */ int mem_index; /* select memory access functions */ @@ -2656,7 +2655,7 @@ do_gen_eob_worker(DisasContext *s, bool inhibit, bool recheck_tf, bool jr) } else if (recheck_tf) { gen_helper_rechecking_single_step(cpu_env); tcg_gen_exit_tb(NULL, 0); - } else if (s->tf) { + } else if (s->flags & HF_TF_MASK) { gen_helper_single_step(cpu_env); } else if (jr) { tcg_gen_lookup_and_goto_ptr(); @@ -5540,7 +5539,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) if (s->base.is_jmp) { gen_jmp_im(s, s->pc - s->cs_base); if (reg == R_SS) { - s->tf = 0; + s->flags &= ~HF_TF_MASK; gen_eob_inhibit_irq(s, true); } else { gen_eob(s); @@ -5606,7 +5605,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) if (s->base.is_jmp) { gen_jmp_im(s, s->pc - s->cs_base); if (reg == R_SS) { - s->tf = 0; + s->flags &= ~HF_TF_MASK; gen_eob_inhibit_irq(s, true); } else { gen_eob(s); @@ -8506,7 +8505,6 @@ static void i386_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cpu) g_assert(LMA(dc) == ((flags & HF_LMA_MASK) != 0)); g_assert(ADDSEG(dc) == ((flags & HF_ADDSEG_MASK) != 0)); - dc->tf = (flags >> TF_SHIFT) & 1; dc->cc_op = CC_OP_DYNAMIC; dc->cc_op_dirty = false; dc->popl_esp_hack = 0; @@ -8521,8 +8519,8 @@ static void i386_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cpu) dc->cpuid_ext3_features = env->features[FEAT_8000_0001_ECX]; dc->cpuid_7_0_ebx_features = env->features[FEAT_7_0_EBX]; dc->cpuid_xsave_features = env->features[FEAT_XSAVE]; - dc->jmp_opt = !(dc->tf || dc->base.singlestep_enabled || - (flags & HF_INHIBIT_IRQ_MASK)); + dc->jmp_opt = !(dc->base.singlestep_enabled || + (flags & (HF_TF_MASK | HF_INHIBIT_IRQ_MASK))); /* Do not optimize repz jumps at all in icount mode, because rep movsS instructions are execured with different paths in !repz_opt and repz_opt modes. The first one was used @@ -8597,7 +8595,7 @@ static void i386_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu) pc_next = disas_insn(dc, cpu); - if (dc->tf || (dc->base.tb->flags & HF_INHIBIT_IRQ_MASK)) { + if (dc->flags & (HF_TF_MASK | HF_INHIBIT_IRQ_MASK)) { /* if single step mode, we generate only one instruction and generate an exception */ /* if irq were inhibited with HF_INHIBIT_IRQ_MASK, we clear -- 2.25.1