From patchwork Wed Dec 11 16:29:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 13903848 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 77B34E7717D for ; Wed, 11 Dec 2024 16:35:24 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tLPdh-00076I-6l; Wed, 11 Dec 2024 11:32:41 -0500 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 1tLPca-0004Ga-36 for qemu-devel@nongnu.org; Wed, 11 Dec 2024 11:31:32 -0500 Received: from mail-qt1-x836.google.com ([2607:f8b0:4864:20::836]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1tLPcY-0001FL-7y for qemu-devel@nongnu.org; Wed, 11 Dec 2024 11:31:31 -0500 Received: by mail-qt1-x836.google.com with SMTP id d75a77b69052e-4676e708aeaso26629201cf.1 for ; Wed, 11 Dec 2024 08:31:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1733934689; x=1734539489; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Mv4+39/cFGoJE7L8lZWTi5JvZoPChXZESu684RPUKCc=; b=ayS5X4dLrF2FDIOHD6Byo8WlivOEL9A/EAoRoTPguUKtQSrMNYp2LUJ/aWjJ9wpGVC 1niap2EhE17Pixg7vB631D16w5EnMI2JYr6ZELa2kd9ucNejPog08sehn9uhTc2N+Ff0 pqSZYZUhsl3Br3SXYNKLUkp7GiL1VYqiCeSO9otVIPniNQuvkwJGNkb9NA7s79S/IE43 yab8gccHN52BqoznK/nNo8NlJ2vdx3HEtsO+MiRuiiEDbt9g5N9G9VDGlS1fpLnF1IIl lktKCemR5072m7R4qiIBU/hT2GM+6+TDcaeP5tLZRkd+n7b+6lFVnFnl0a/+D4y+ysRA cwRg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733934689; x=1734539489; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Mv4+39/cFGoJE7L8lZWTi5JvZoPChXZESu684RPUKCc=; b=lS3EivsG0BoOg/fqqlSuJQuFaoFRhD3imAV/T0Mk0lYN3FNMnZ5DgZuoUW0x1i7s6f rPKWJIr8HKzWsDai351Z13z8ygoZ8ku0NczteyF/CflJURS+1S+AuWRbVvP9/n4NBj5V CZn/0uFAA9aYAYauet50oCn6f+Rk2JwWjZG87wKeSb6auHJFZZ/iAasf7Kb6RtLYxjQd DvYL48QdSODr7BwCmmfF6zqRKE9pXLNo1zfxNuIBDCt85ceKkN6aWJ3pJ/+lR2H6PcJV 6C4bYi4Mah5sO11M10975kjEfb5QZWYEK/7nfQ/+yYcjzsVR2aVgMel1D+tUwsyBBf9Y 88+Q== X-Gm-Message-State: AOJu0YxTTepR6YmxudqC2cOe6CEBvTnPNJ7INNggBhvGsBu0/KdmrDxo wAc6KAFThwptJmSwKbwAQg/HDMVOBZMDNfkXd9cKTvws7Bl2K5VpdZxlVT1n9iHW7CIJC9aGAj2 R6bgK2gdi X-Gm-Gg: ASbGncsmGJaTJ49LNmlB2ra9kntrbqL6CCsIZRJSXIP0Mekrw70Jb7evemkMQbecMGh sxAIqMN+LlMoc85+kJI01TmIuEnm0ZrcaWWuG8YbhdaHkJhmWAHHJx13VdrL7CLD7/7U13UaGih bzpJVDoTR1JtzMf/hq8tG9WWIAekCao69WymV32n6dSumi7YGSKHKdZvdtHj1jxh4YhDoz34ue/ WCczeN8fNTijwWiKj6r0JhAZHGlEBEQM1iC66S7hsoNclCAFBYtS/4FrbpYLw== X-Google-Smtp-Source: AGHT+IErHSmEfGNAn/OMuGLr6UIdWt5R0d1XJkJ07FqFW5qQvFSh7jbMVtPhpaR7RWTO2nuR/cCvqg== X-Received: by 2002:a05:622a:590e:b0:467:681c:425f with SMTP id d75a77b69052e-467892a260amr78255601cf.4.1733934689317; Wed, 11 Dec 2024 08:31:29 -0800 (PST) Received: from stoup.. ([187.217.227.247]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-46755db613csm43849381cf.70.2024.12.11.08.31.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Dec 2024 08:31:28 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, Peter Maydell Subject: [PATCH v3 11/69] target/arm: Convert disas_logic_reg to decodetree Date: Wed, 11 Dec 2024 10:29:38 -0600 Message-ID: <20241211163036.2297116-12-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241211163036.2297116-1-richard.henderson@linaro.org> References: <20241211163036.2297116-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::836; envelope-from=richard.henderson@linaro.org; helo=mail-qt1-x836.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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This includes AND, BIC, ORR, ORN, EOR, EON, ANDS, BICS (shifted reg). Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/tcg/translate-a64.c | 117 ++++++++++++--------------------- target/arm/tcg/a64.decode | 9 +++ 2 files changed, 51 insertions(+), 75 deletions(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index d92fe68299..ecc8899dd8 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -7805,96 +7805,65 @@ static bool do_xpac(DisasContext *s, int rd, NeonGenOne64OpEnvFn *fn) TRANS_FEAT(XPACI, aa64_pauth, do_xpac, a->rd, gen_helper_xpaci) TRANS_FEAT(XPACD, aa64_pauth, do_xpac, a->rd, gen_helper_xpacd) -/* Logical (shifted register) - * 31 30 29 28 24 23 22 21 20 16 15 10 9 5 4 0 - * +----+-----+-----------+-------+---+------+--------+------+------+ - * | sf | opc | 0 1 0 1 0 | shift | N | Rm | imm6 | Rn | Rd | - * +----+-----+-----------+-------+---+------+--------+------+------+ - */ -static void disas_logic_reg(DisasContext *s, uint32_t insn) +static bool do_logic_reg(DisasContext *s, arg_logic_shift *a, + ArithTwoOp *fn, ArithTwoOp *inv_fn, bool setflags) { TCGv_i64 tcg_rd, tcg_rn, tcg_rm; - unsigned int sf, opc, shift_type, invert, rm, shift_amount, rn, rd; - sf = extract32(insn, 31, 1); - opc = extract32(insn, 29, 2); - shift_type = extract32(insn, 22, 2); - invert = extract32(insn, 21, 1); - rm = extract32(insn, 16, 5); - shift_amount = extract32(insn, 10, 6); - rn = extract32(insn, 5, 5); - rd = extract32(insn, 0, 5); - - if (!sf && (shift_amount & (1 << 5))) { - unallocated_encoding(s); - return; + if (!a->sf && (a->sa & (1 << 5))) { + return false; } - tcg_rd = cpu_reg(s, rd); + tcg_rd = cpu_reg(s, a->rd); + tcg_rn = cpu_reg(s, a->rn); - if (opc == 1 && shift_amount == 0 && shift_type == 0 && rn == 31) { - /* Unshifted ORR and ORN with WZR/XZR is the standard encoding for - * register-register MOV and MVN, so it is worth special casing. - */ - tcg_rm = cpu_reg(s, rm); - if (invert) { + tcg_rm = read_cpu_reg(s, a->rm, a->sf); + if (a->sa) { + shift_reg_imm(tcg_rm, tcg_rm, a->sf, a->st, a->sa); + } + + (a->n ? inv_fn : fn)(tcg_rd, tcg_rn, tcg_rm); + if (!a->sf) { + tcg_gen_ext32u_i64(tcg_rd, tcg_rd); + } + if (setflags) { + gen_logic_CC(a->sf, tcg_rd); + } + return true; +} + +static bool trans_ORR_r(DisasContext *s, arg_logic_shift *a) +{ + /* + * Unshifted ORR and ORN with WZR/XZR is the standard encoding for + * register-register MOV and MVN, so it is worth special casing. + */ + if (a->sa == 0 && a->st == 0 && a->rn == 31) { + TCGv_i64 tcg_rd = cpu_reg(s, a->rd); + TCGv_i64 tcg_rm = cpu_reg(s, a->rm); + + if (a->n) { tcg_gen_not_i64(tcg_rd, tcg_rm); - if (!sf) { + if (!a->sf) { tcg_gen_ext32u_i64(tcg_rd, tcg_rd); } } else { - if (sf) { + if (a->sf) { tcg_gen_mov_i64(tcg_rd, tcg_rm); } else { tcg_gen_ext32u_i64(tcg_rd, tcg_rm); } } - return; + return true; } - tcg_rm = read_cpu_reg(s, rm, sf); - - if (shift_amount) { - shift_reg_imm(tcg_rm, tcg_rm, sf, shift_type, shift_amount); - } - - tcg_rn = cpu_reg(s, rn); - - switch (opc | (invert << 2)) { - case 0: /* AND */ - case 3: /* ANDS */ - tcg_gen_and_i64(tcg_rd, tcg_rn, tcg_rm); - break; - case 1: /* ORR */ - tcg_gen_or_i64(tcg_rd, tcg_rn, tcg_rm); - break; - case 2: /* EOR */ - tcg_gen_xor_i64(tcg_rd, tcg_rn, tcg_rm); - break; - case 4: /* BIC */ - case 7: /* BICS */ - tcg_gen_andc_i64(tcg_rd, tcg_rn, tcg_rm); - break; - case 5: /* ORN */ - tcg_gen_orc_i64(tcg_rd, tcg_rn, tcg_rm); - break; - case 6: /* EON */ - tcg_gen_eqv_i64(tcg_rd, tcg_rn, tcg_rm); - break; - default: - assert(FALSE); - break; - } - - if (!sf) { - tcg_gen_ext32u_i64(tcg_rd, tcg_rd); - } - - if (opc == 3) { - gen_logic_CC(sf, tcg_rd); - } + return do_logic_reg(s, a, tcg_gen_or_i64, tcg_gen_orc_i64, false); } +TRANS(AND_r, do_logic_reg, a, tcg_gen_and_i64, tcg_gen_andc_i64, false) +TRANS(ANDS_r, do_logic_reg, a, tcg_gen_and_i64, tcg_gen_andc_i64, true) +TRANS(EOR_r, do_logic_reg, a, tcg_gen_xor_i64, tcg_gen_eqv_i64, false) + /* * Add/subtract (extended register) * @@ -8411,11 +8380,9 @@ static void disas_data_proc_reg(DisasContext *s, uint32_t insn) /* Add/sub (shifted register) */ disas_add_sub_reg(s, insn); } - } else { - /* Logical (shifted register) */ - disas_logic_reg(s, insn); + return; } - return; + goto do_unallocated; } switch (op2) { diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode index 0e04ab6ce4..8e2949d236 100644 --- a/target/arm/tcg/a64.decode +++ b/target/arm/tcg/a64.decode @@ -716,6 +716,15 @@ XPACI 1 10 11010110 00001 010000 11111 rd:5 XPACD 1 10 11010110 00001 010001 11111 rd:5 # Logical (shifted reg) + +&logic_shift rd rn rm sf sa st n +@logic_shift sf:1 .. ..... st:2 n:1 rm:5 sa:6 rn:5 rd:5 &logic_shift + +AND_r . 00 01010 .. . ..... ...... ..... ..... @logic_shift +ORR_r . 01 01010 .. . ..... ...... ..... ..... @logic_shift +EOR_r . 10 01010 .. . ..... ...... ..... ..... @logic_shift +ANDS_r . 11 01010 .. . ..... ...... ..... ..... @logic_shift + # Add/subtract (shifted reg) # Add/subtract (extended reg) # Add/subtract (carry)