From nobody Tue Sep 30 03:11:04 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 16395744554031015.1508752638431; Wed, 15 Dec 2021 05:20:55 -0800 (PST) Received: from localhost ([::1]:47944 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mxUDF-0004dX-Mb for importer@patchew.org; Wed, 15 Dec 2021 08:20:54 -0500 Received: from eggs.gnu.org ([209.51.188.92]:51634) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mxTlp-0004nT-Dh for qemu-devel@nongnu.org; Wed, 15 Dec 2021 07:52:33 -0500 Received: from mail.xen0n.name ([115.28.160.31]:36808 helo=mailbox.box.xen0n.name) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mxTlm-000445-9g for qemu-devel@nongnu.org; Wed, 15 Dec 2021 07:52:33 -0500 Received: from ld50.lan (unknown [101.88.31.179]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by mailbox.box.xen0n.name (Postfix) with ESMTPSA id A5AB56018A; Wed, 15 Dec 2021 20:52:06 +0800 (CST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=xen0n.name; s=mail; t=1639572726; bh=Mih10HpevG+XzP4mfM1pa7E7UiRLBbk/aoWBhOuB7zg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TQF1dYc6FGaoLH8GKsmnYIMF27bWKu9J4QedybpbYCyrdnuy1Uxe2TnM7e1H1+JBq c7+9bDQKtL8bRHZYIvt5udljKO0rlBBgWrdDu9R8sKeebg/7slzL1ltFQr+pKvjTeq YXj/dir9pUZdq/V2XrSW5/RlEfSwy5y299w1ePm0= From: WANG Xuerui To: qemu-devel@nongnu.org Subject: [PATCH v10 06/31] tcg/loongarch64: Define the operand constraints Date: Wed, 15 Dec 2021 20:51:11 +0800 Message-Id: <20211215125136.3449717-7-git@xen0n.name> X-Mailer: git-send-email 2.34.0 In-Reply-To: <20211215125136.3449717-1-git@xen0n.name> References: <20211215125136.3449717-1-git@xen0n.name> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=115.28.160.31; envelope-from=git@xen0n.name; helo=mailbox.box.xen0n.name 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, 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: , Cc: Peter Maydell , XiaoJuan Yang , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Laurent Vivier , WANG Xuerui , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Song Gao Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1639574497550100001 Signed-off-by: WANG Xuerui Reviewed-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- tcg/loongarch64/tcg-target-con-str.h | 28 +++++++++++++++ tcg/loongarch64/tcg-target.c.inc | 52 ++++++++++++++++++++++++++++ 2 files changed, 80 insertions(+) create mode 100644 tcg/loongarch64/tcg-target-con-str.h diff --git a/tcg/loongarch64/tcg-target-con-str.h b/tcg/loongarch64/tcg-tar= get-con-str.h new file mode 100644 index 0000000000..c3986a4fd4 --- /dev/null +++ b/tcg/loongarch64/tcg-target-con-str.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Define LoongArch target-specific operand constraints. + * + * Copyright (c) 2021 WANG Xuerui + * + * Based on tcg/riscv/tcg-target-con-str.h + * + * Copyright (c) 2021 Linaro + */ + +/* + * Define constraint letters for register sets: + * REGS(letter, register_mask) + */ +REGS('r', ALL_GENERAL_REGS) +REGS('L', ALL_GENERAL_REGS & ~SOFTMMU_RESERVE_REGS) + +/* + * Define constraint letters for constants: + * CONST(letter, TCG_CT_CONST_* bit set) + */ +CONST('I', TCG_CT_CONST_S12) +CONST('N', TCG_CT_CONST_N12) +CONST('U', TCG_CT_CONST_U12) +CONST('Z', TCG_CT_CONST_ZERO) +CONST('C', TCG_CT_CONST_C12) +CONST('W', TCG_CT_CONST_WSZ) diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.= c.inc index 653ef0a4bb..1c1b798c06 100644 --- a/tcg/loongarch64/tcg-target.c.inc +++ b/tcg/loongarch64/tcg-target.c.inc @@ -116,3 +116,55 @@ static const int tcg_target_call_oarg_regs[] =3D { TCG_REG_A0, TCG_REG_A1, }; + +#define TCG_CT_CONST_ZERO 0x100 +#define TCG_CT_CONST_S12 0x200 +#define TCG_CT_CONST_N12 0x400 +#define TCG_CT_CONST_U12 0x800 +#define TCG_CT_CONST_C12 0x1000 +#define TCG_CT_CONST_WSZ 0x2000 + +#define ALL_GENERAL_REGS MAKE_64BIT_MASK(0, 32) +/* + * For softmmu, we need to avoid conflicts with the first 5 + * argument registers to call the helper. Some of these are + * also used for the tlb lookup. + */ +#ifdef CONFIG_SOFTMMU +#define SOFTMMU_RESERVE_REGS MAKE_64BIT_MASK(TCG_REG_A0, 5) +#else +#define SOFTMMU_RESERVE_REGS 0 +#endif + + +static inline tcg_target_long sextreg(tcg_target_long val, int pos, int le= n) +{ + return sextract64(val, pos, len); +} + +/* test if a constant matches the constraint */ +static bool tcg_target_const_match(int64_t val, TCGType type, int ct) +{ + if (ct & TCG_CT_CONST) { + return true; + } + if ((ct & TCG_CT_CONST_ZERO) && val =3D=3D 0) { + return true; + } + if ((ct & TCG_CT_CONST_S12) && val =3D=3D sextreg(val, 0, 12)) { + return true; + } + if ((ct & TCG_CT_CONST_N12) && -val =3D=3D sextreg(-val, 0, 12)) { + return true; + } + if ((ct & TCG_CT_CONST_U12) && val >=3D 0 && val <=3D 0xfff) { + return true; + } + if ((ct & TCG_CT_CONST_C12) && ~val >=3D 0 && ~val <=3D 0xfff) { + return true; + } + if ((ct & TCG_CT_CONST_WSZ) && val =3D=3D (type =3D=3D TCG_TYPE_I32 ? = 32 : 64)) { + return true; + } + return false; +} --=20 2.34.0