From nobody Wed Apr 9 01:04:41 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1735841882; cv=none; d=zohomail.com; s=zohoarc; b=AyjTXna7rnrTv97rxkR9BHxkyS76JSI5x2kMSogemExSIcp0JmA2rOroCYAvF9/uOVQvRpsKiIwZuOnS7H3imxKErVaVkwDOuYw1jIYl/Wyjy7L3zFG8//bkUI8ZxmR+CZlrXAW9/btyf/gQ84SThVAHuffUpz+ytNLROyDbL/s= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1735841882; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=AsTQ0M7Ew3tLGi+O218NnOIxDCbwYi5kOq0GHTv2YVY=; b=TL6xjstZF4LF9pmqdwAiqmnpKTgooTUroclotAkjCd2X+fYJ8smb8KN1VamMQhzFuAovISRUcxSU8BT29djf0k9qr/02/utE1fLtCxm1qVbYHDGXExqsKEk7Wdvq7AsoKvKTeUmMn0ucFDtg7Eb5gwW7GQMtBnShH2kw0+JQD90= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1735841882197791.3195014205824; Thu, 2 Jan 2025 10:18:02 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tTPkC-0008PW-Se; Thu, 02 Jan 2025 13:16:28 -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 1tTPjt-0007Pl-TW for qemu-devel@nongnu.org; Thu, 02 Jan 2025 13:16:12 -0500 Received: from mail-pl1-x62e.google.com ([2607:f8b0:4864:20::62e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1tTPjq-0006sf-Tj for qemu-devel@nongnu.org; Thu, 02 Jan 2025 13:16:09 -0500 Received: by mail-pl1-x62e.google.com with SMTP id d9443c01a7336-2164b662090so138896465ad.1 for ; Thu, 02 Jan 2025 10:16:05 -0800 (PST) Received: from stoup.. ([63.239.63.212]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-219dc9f68e4sm230148315ad.211.2025.01.02.10.16.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Jan 2025 10:16:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1735841764; x=1736446564; 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=AsTQ0M7Ew3tLGi+O218NnOIxDCbwYi5kOq0GHTv2YVY=; b=BXQNJYynvo6h6+z+zdfb4l87+Ee1AMdusC4vZDA4uwWAw/+rXRG+4aGUjtkdQwdClV VumDCWugl/5fayzw0h7QeAA8IR1KrtM0HBBL3akDJmavuOk9ilj5mnmsqewLPXSnr6sB +E71U77xfE/YJ0Hy/F0f+h/EyoQP9hyNW6pNsTU70XFxh3kzPswylhoQ2WNdgS4a1q/6 4YxgNTafrDV2QXbX8GpD/uW1lxyaO6NnBoeV99UFavs30PsKxNeM0KhLhudkfWxeM7Dc oXypQQQ3Jx1Mn3752qKlnWuc8qcyl7/TIJXs2p4K618hh6yeFXqmKUC3ti6bHFKArHEb ITew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1735841764; x=1736446564; 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=AsTQ0M7Ew3tLGi+O218NnOIxDCbwYi5kOq0GHTv2YVY=; b=c89K9YgU5sM0zf4lee3H9kw4X8kJEM60xKn7nsfbQ9m4fBwo1OluugbFOqvYrlOGmL sW3pBvFWVAX8ajbBahMabdqv0w0UcNq0s61AID/6/4gBG6ViYHLKkoNlEaIEh5uPGSTJ oaEGv9uozfsA3NvvBqAOnwBHhVJkM1CH3n+S4Tq2/fJ+Sur/69iqxNzeP0fBSBspmeYh q6qhLjkGQEPdXMvGTkQQTmkkY4K5wk3+lzc3bQgad1v8eHi7e/QVYXX0Zky/mNMjl1Ht VaBjzn6Z6X1L2FIr+6TrSVmrJWg6U0owQxxwv1DmdWPHWtvt4lQCYMF2yIB7zPoW0lLr y4vw== X-Gm-Message-State: AOJu0Yw3HF8lYw1CAgFtVtLXHOBZUGb7+Lh/HJc1Ubxe7bCizKQdCGG2 BEv0qGPv39D/ZDqenTbby5U8jSWt36cj5iNPDGAdQJZVgp/FeLZbUSHEVw6m6HEiYJkxlHdg3Qn a X-Gm-Gg: ASbGncvcRouBv7GfVHpKhm8Gq/pXECW0izldaWTjS/dgzRgVTPdc3SXsjXm5n3btri3 bE1Qk0ppuI2tuJ9ssGYUz4b2VSBLJu4h75J1Xy+yC+pvpPzDcXskeSXYXMbz/3gK6fgsJFVsgMf 5QlDYrZYtg7loCog4i/hz0JZvH+rbzdNFfJW0J33kylplCixJObjCdSufmOV/e9tx87R/kwzmY8 QlL7pTUZE4N2esoRgE2EmMwFDBdZN8AleS5+Q0HRTZdyz9jFmRZAE1EdpgUoA== X-Google-Smtp-Source: AGHT+IHB9y3/tACCwbOijgfWnUwLDPrz+f6EZINXD++wYeTpdbP3tNqLvdvV7WHTo78M6yIWuy1HYg== X-Received: by 2002:a17:902:e945:b0:215:4a4e:9262 with SMTP id d9443c01a7336-219e6e8c58amr708525275ad.8.1735841764530; Thu, 02 Jan 2025 10:16:04 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-riscv@nongnu.org, palmer@dabbelt.com, Alistair.Francis@wdc.com Subject: [PATCH 2/2] tcg/riscv: Use BEXTI for single-bit extractions Date: Thu, 2 Jan 2025 10:16:01 -0800 Message-ID: <20250102181601.1421059-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250102181601.1421059-1-richard.henderson@linaro.org> References: <20250102181601.1421059-1-richard.henderson@linaro.org> MIME-Version: 1.0 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=2607:f8b0:4864:20::62e; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62e.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1735841882839116600 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson Acked-by: Alistair Francis --- tcg/riscv/tcg-target-has.h | 8 +++++++- tcg/riscv/tcg-target.c.inc | 13 +++++++++++-- 2 files changed, 18 insertions(+), 3 deletions(-) diff --git a/tcg/riscv/tcg-target-has.h b/tcg/riscv/tcg-target-has.h index 10e61edc45..ea38ee5cbb 100644 --- a/tcg/riscv/tcg-target-has.h +++ b/tcg/riscv/tcg-target-has.h @@ -64,7 +64,13 @@ tcg_target_extract_valid(TCGType type, unsigned ofs, uns= igned len) /* ofs > 0 uses SRLIW; ofs =3D=3D 0 uses add.uw. */ return ofs || (cpuinfo & CPUINFO_ZBA); } - return (cpuinfo & CPUINFO_ZBB) && ofs =3D=3D 0 && len =3D=3D 16; + switch (len) { + case 1: + return (cpuinfo & CPUINFO_ZBS) && ofs !=3D 0; + case 16: + return (cpuinfo & CPUINFO_ZBB) && ofs =3D=3D 0; + } + return false; } #define TCG_TARGET_extract_valid tcg_target_extract_valid =20 diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc index 12c3cffcc0..83ec7cd980 100644 --- a/tcg/riscv/tcg-target.c.inc +++ b/tcg/riscv/tcg-target.c.inc @@ -162,6 +162,7 @@ typedef enum { OPC_ANDI =3D 0x7013, OPC_AUIPC =3D 0x17, OPC_BEQ =3D 0x63, + OPC_BEXTI =3D 0x48005013, OPC_BGE =3D 0x5063, OPC_BGEU =3D 0x7063, OPC_BLT =3D 0x4063, @@ -2307,9 +2308,17 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,= TCGType type, } else { tcg_out_opc_imm(s, OPC_SRLIW, a0, a1, a2); } - } else if (a2 =3D=3D 0 && args[3] =3D=3D 16) { + break; + } + switch (args[3]) { + case 1: + tcg_out_opc_imm(s, OPC_BEXTI, a0, a1, a2); + break; + case 16: + tcg_debug_assert(a2 =3D=3D 0); tcg_out_ext16u(s, a0, a1); - } else { + break; + default: g_assert_not_reached(); } break; --=20 2.43.0