From nobody Thu Nov 7 13:40:35 2024 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 163259164796870.04545060973896; Sat, 25 Sep 2021 10:40:47 -0700 (PDT) Received: from localhost ([::1]:58766 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mUBfK-0008Fb-RW for importer@patchew.org; Sat, 25 Sep 2021 13:40:46 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36582) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mUBWF-0002R8-0W for qemu-devel@nongnu.org; Sat, 25 Sep 2021 13:31:23 -0400 Received: from [115.28.160.31] (port=57186 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 1mUBWC-0005Ol-Nq for qemu-devel@nongnu.org; Sat, 25 Sep 2021 13:31:22 -0400 Received: from ld50.lan (unknown [101.88.29.172]) (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 B89E260B36; Sun, 26 Sep 2021 01:30:52 +0800 (CST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=xen0n.name; s=mail; t=1632591052; bh=oNCbEAjINIk+ZUS/PcrmG/zO7KzTTKj/ZjR8N+/9hYs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=P7JgdHwXCV/CNOR3kc8jpq4ilhBeH6AgODHJQ/aFP495HME88L/OwfIBWqLsRifHy IDX2GR8rE3BHwBtGrrzXFwiJTDzdU94CxjWv4EXVorfTkF0WeErugRWxCApaYGEfs1 +bw3D9jjmNwjrxcXvnRQr8tkgZwG/VtcU0Fo8khY= From: WANG Xuerui To: qemu-devel@nongnu.org Subject: [PATCH v6 06/30] tcg/loongarch64: Define the operand constraints Date: Sun, 26 Sep 2021 01:30:08 +0800 Message-Id: <20210925173032.2434906-7-git@xen0n.name> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210925173032.2434906-1-git@xen0n.name> References: <20210925173032.2434906-1-git@xen0n.name> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Host-Lookup-Failed: Reverse DNS lookup failed for 115.28.160.31 (failed) 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: 6 X-Spam_score: 0.6 X-Spam_bar: / X-Spam_report: (0.6 / 5.0 requ) DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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 , XiaoJuan Yang , Richard Henderson , Song Gao , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , WANG Xuerui , Laurent Vivier 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: 1632591650184100001 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 42eebef78e..64e57bd055 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 2.33.0