From nobody Wed Apr 16 02:59:11 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=1734111243; cv=none; d=zohomail.com; s=zohoarc; b=TeNNEPEzswcrTh6Wq2PufFjIyJNnJyJmpYd9vHxRLe1JF1XfiOmv1Tk0AogvXAIehVHXs5Y2T5v/SKDAyrDt27FrYCCWs/RbiUKfD+IM64NIu9NukTwX4PndOfybe5fRlr4OKVYqKVcg5vMHV5C2ntvAn4LbInS+3durOphIVYo= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1734111243; h=Content-Transfer-Encoding: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:Cc; bh=Sp4roeRQL1fuJKdKDyKEq4BIrsgp9jAp7oXPidcX4dw=; b=V4Aebf+aMwjEi55W61KE2YAT5DHv+y7eg32FHDh7J9Oi5/exsba2pmnGbyG1kooR+5uSJkVahaAX0TJj3etXt5Hu9uJ2NAhpLlqDMlG2jHOsRA8g+xEvHYMcy0yQK8k5CgOH2z7BR7jqxZbljVId/qj/ojT6//r+EJE3DjucQJg= 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 1734111243164344.4556800616044; Fri, 13 Dec 2024 09:34:03 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tM9XI-00077j-BA; Fri, 13 Dec 2024 12:33:08 -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 1tM9X7-0006zo-93 for qemu-devel@nongnu.org; Fri, 13 Dec 2024 12:32:58 -0500 Received: from mail-wr1-x431.google.com ([2a00:1450:4864:20::431]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1tM9X5-0001W8-Ag for qemu-devel@nongnu.org; Fri, 13 Dec 2024 12:32:57 -0500 Received: by mail-wr1-x431.google.com with SMTP id ffacd0b85a97d-385de9f789cso1543933f8f.2 for ; Fri, 13 Dec 2024 09:32:54 -0800 (PST) Received: from orth.archaic.org.uk (orth.archaic.org.uk. [2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-388c80162ddsm87026f8f.37.2024.12.13.09.32.52 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Dec 2024 09:32:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1734111173; x=1734715973; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=Sp4roeRQL1fuJKdKDyKEq4BIrsgp9jAp7oXPidcX4dw=; b=cKVneeFFkcdwJJSLwAgOgOMpVHotcTXpy7mK5OB8zF6ervLqbqZCKnBwVL44z4JUo1 bKOefGR6NqSI0U5W3CGD1pMnA4redChW1We/MNXppFRLS/0onufDzNDecoX5MsM63xmU z0BwS3g4LPPovw+mb4Xf7aQRQnSoYyTZBKgLR5caNFIiqcafcA8uCD7tcPwOkKSM7kaG /STvejZXbPNGQ6ll5xFvcRgNHZR0oPfp4HoGuanKa+UMN8KFkiL4z6EUCFsNk5xjxPtv EED/7KBho7/CihgefRypnJSDX23DkrWYfEAJGzNyx0gClaLdttMVInU9JO0cNCHzFl/6 3K1Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734111173; x=1734715973; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Sp4roeRQL1fuJKdKDyKEq4BIrsgp9jAp7oXPidcX4dw=; b=OW/Hep9YulgOaJCuoniaZZG8jmfxqGbbVLC81x4eBh5iaLN/dfrcCVuxjyk2SM7bR8 xjuRVSLEYE6pMjce2sTgcwCRAUKv3XExOTdD0ka6BOA/cIwgCqfZvKMt3lfceyEPcZUu WbP6wKQKdOsKavri3VobrKGzY9PfuRfcmTJXesPV7tXtasvFUwTpnQgovBwFIkORlMWa uxdxIgbPAj7vGlCaP2XuubftbffxMpVpJAdMIfaQ75qASa9D71Ar8T8db7Mip1qeWb+9 BqlKkWAqcQ/nf2HzDlxZBGEIbM7m/QKAyO0KpMMIrvh+F1fMv5qeN4Y+G8MAadpFNzMg 2dPg== X-Gm-Message-State: AOJu0YyxLTZDwqHriuxt6NSptIME5I6WDwFcBeJkv8DJ1OhUyh8Y9iy9 tTgKkB6zxIzGAPyb+aOZcaiTGOA2O79L4pYUZV+TT0kqqUA0MGEU7hjW926iFAamvDiiEEsWvxu N X-Gm-Gg: ASbGncvbMzcHIRFLoX3qbrFGa4hOOmTC9YqugMRslT/tjrzyzkrA/5frhTtBmGV1x8L TSqVeUONVH//+IZriYT/rLwrcKQjH5MrkmvDVRJbsGyvipionQqlucCDq/u2PRwCbdgYUIdyUMY xRk76RBp0ZwAH5JJomnktdA7wsYVj7vdF3XH9jdEUBPJE1SqPJ0u4j54nBu2KLWSgLCQHZ0pf2x Tkhm0DTjq4aoRcWCMaUV51D445CvNXr8zibK5g4ka/2UoH6kVdPynGn0h4xPQ== X-Google-Smtp-Source: AGHT+IGeGln2lMj7ZmuAtwrVoqCIXFmzRJHl6bJt5MX5OlpHgGZqyOLLH/aMhEz+jjj6bUTTbJXjSA== X-Received: by 2002:a5d:6f1d:0:b0:386:37f5:99e7 with SMTP id ffacd0b85a97d-3888e0bbaeemr3200362f8f.33.1734111173067; Fri, 13 Dec 2024 09:32:53 -0800 (PST) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 20/85] target/arm: Introduce fp_access_check_scalar_hsd Date: Fri, 13 Dec 2024 17:31:24 +0000 Message-Id: <20241213173229.3308926-21-peter.maydell@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241213173229.3308926-1-peter.maydell@linaro.org> References: <20241213173229.3308926-1-peter.maydell@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=2a00:1450:4864:20::431; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x431.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: 1734111244161116600 Content-Type: text/plain; charset="utf-8" From: Richard Henderson Provide a simple way to check for float64, float32, and float16 support, as well as the fpu enabled. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-id: 20241211163036.2297116-21-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- target/arm/tcg/translate-a64.c | 62 ++++++++++++++++++---------------- 1 file changed, 32 insertions(+), 30 deletions(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index 9c6365f5efc..4e47b8a8041 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -1239,6 +1239,27 @@ static bool fp_access_check(DisasContext *s) return true; } =20 +/* + * Return <0 for non-supported element sizes, with MO_16 controlled by + * FEAT_FP16; return 0 for fp disabled; otherwise return >0 for success. + */ +static int fp_access_check_scalar_hsd(DisasContext *s, MemOp esz) +{ + switch (esz) { + case MO_64: + case MO_32: + break; + case MO_16: + if (!dc_isar_feature(aa64_fp16, s)) { + return -1; + } + break; + default: + return -1; + } + return fp_access_check(s); +} + /* * Check that SVE access is enabled. If it is, return true. * If not, emit code to generate an appropriate exception and return false. @@ -6628,22 +6649,10 @@ static bool trans_FCSEL(DisasContext *s, arg_FCSEL = *a) { TCGv_i64 t_true, t_false; DisasCompare64 c; + int check =3D fp_access_check_scalar_hsd(s, a->esz); =20 - switch (a->esz) { - case MO_32: - case MO_64: - break; - case MO_16: - if (!dc_isar_feature(aa64_fp16, s)) { - return false; - } - break; - default: - return false; - } - - if (!fp_access_check(s)) { - return true; + if (check <=3D 0) { + return check =3D=3D 0; } =20 /* Zero extend sreg & hreg inputs to 64 bits now. */ @@ -6894,22 +6903,15 @@ TRANS(FMINV_s, do_fp_reduction, a, gen_helper_vfp_m= ins) =20 static bool trans_FMOVI_s(DisasContext *s, arg_FMOVI_s *a) { - switch (a->esz) { - case MO_32: - case MO_64: - break; - case MO_16: - if (!dc_isar_feature(aa64_fp16, s)) { - return false; - } - break; - default: - return false; - } - if (fp_access_check(s)) { - uint64_t imm =3D vfp_expand_imm(a->esz, a->imm); - write_fp_dreg(s, a->rd, tcg_constant_i64(imm)); + int check =3D fp_access_check_scalar_hsd(s, a->esz); + uint64_t imm; + + if (check <=3D 0) { + return check =3D=3D 0; } + + imm =3D vfp_expand_imm(a->esz, a->imm); + write_fp_dreg(s, a->rd, tcg_constant_i64(imm)); return true; } =20 --=20 2.34.1