From patchwork Sat Feb 1 16:39:24 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 861294 Delivered-To: patch@linaro.org Received: by 2002:adf:fb05:0:b0:385:e875:8a9e with SMTP id c5csp1265515wrr; Sat, 1 Feb 2025 08:51:16 -0800 (PST) X-Forwarded-Encrypted: i=2; AJvYcCWe1eg8Vu8pEN886vFsDN4SC0hhuPt79EytLDiL+X5MlK9bqTqg2nmEpjG0luIYeAdijsAIMA==@linaro.org X-Google-Smtp-Source: AGHT+IHlYmbmd8ZiV92E1Om30lN6T4+V0h3u9tGK4KvslHlldTu0g7XMStS4INl4b9vaUcG8Hwgs X-Received: by 2002:a05:6214:3115:b0:6e1:afcf:8748 with SMTP id 6a1803df08f44-6e243c35440mr269603756d6.19.1738428676431; Sat, 01 Feb 2025 08:51:16 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1738428676; cv=none; d=google.com; s=arc-20240605; b=i/lj8XihwKreNEwqkhwvejndnU97aVB+SjoHRXmHWVzQ5xu/9Foi9/X3iEZeW926Vd Q5hMdKsT2qB0XhTwYtd6fnW81zeTi4nc9XL/U7r1hpgUJ2dQGMLw+cmyoUQplAcfcD/X qxDvD566ddHphx64sYAYuzmdqNOMrlkbKTwYvxuXo42DCJDGnKNq72zjRjQXqq3frGjB zo+ceeBhJt2C7cNrlUw3jzdeIZOWM3YIj+z+hRv0HUK8gavBHowPJzlWKTjjx4JfaTtm Ydh7Ky4oCiKSjndm1tv+VzN6wtJsQ939mAxNDAeV3pOkpjFNEe7jgfBKgD9iX8DbGc2P 3KEw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:to:from :dkim-signature; bh=Bnhwa00yLr4VQXjWCmJB9nG9V/x9ySKrwjOdXwHQEUE=; fh=+a8J80SgTTJS7bDtn8CQIh678XMKeb2VBBiZCTlY/1A=; b=JuSfHoETqLku5S8g+Yod9EwmKp88M+ZtKHWfhKtqSa8eYK7/nGBvTbzB7jL5Tqkier hfsp++3UaKGXhzjFPVqOHNoGvKgisTszgMr38nu4wX3gm0xQsKFC2mAAi6uhl4VnF7N+ T7+iaFWb1mPSDf7w2C3/IAHHkCm5DKebK8e8K7upPt8XAXJE2oiVrPb8y2bT+RgRQ0u3 Yp9BhIlK9E287v46ZDOPll6kzYf14EcBLB9J/ZLrm+TuBvxBoJy6gxLXqnBrHpbY8SV4 ZTMpowtRGP0j6A+9pn8SjLUdSk70VYqa+S2u1LA3o4cor7R/Nz0uBnkitqTvyrRDqF0L PkTQ==; dara=google.com ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=cfrKCUxX; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org; dara=neutral header.i=@linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id 6a1803df08f44-6e2548142d9si60244596d6.53.2025.02.01.08.51.16 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Sat, 01 Feb 2025 08:51:16 -0800 (PST) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=cfrKCUxX; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org; dara=neutral header.i=@linaro.org Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1teGY7-0006FR-C4; Sat, 01 Feb 2025 11:40:51 -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 1teGY4-0006CS-2R for qemu-devel@nongnu.org; Sat, 01 Feb 2025 11:40:48 -0500 Received: from mail-wm1-x333.google.com ([2a00:1450:4864:20::333]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1teGY2-00018v-8B for qemu-devel@nongnu.org; Sat, 01 Feb 2025 11:40:47 -0500 Received: by mail-wm1-x333.google.com with SMTP id 5b1f17b1804b1-436202dd7f6so35121065e9.0 for ; Sat, 01 Feb 2025 08:40:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1738428045; x=1739032845; 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=Bnhwa00yLr4VQXjWCmJB9nG9V/x9ySKrwjOdXwHQEUE=; b=cfrKCUxXZ6xK1BmbSo6IBNkPcWlFVD2yVmKin3s3kp5RgaDT9iqP7D7J69bQgvapah 5f7lLBFB+epTYgzMqJgFPXC4JdYOfxN5ufAlnzjpPtKMNOAJLPrY8np1oC8H40c7td+p Br9DulEvimvDQy3F5zqzClzCnwmQnbCf4IRDZLk45uOSUvkkCYI5+Kav+018Ub3EIvNh 8Bo7/Yi9tPuk4D0b2fsHyeBYXDOfRUgOivUQJcEvn/LCI5swXMigclOC8IOxzjTkg5B5 oKrbfns3VBT38CSunNsdZvE1iL57/izW/hQ13c1i6md/QotJJCAkUt6moUgfHA4A0jr4 +lrA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1738428045; x=1739032845; 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=Bnhwa00yLr4VQXjWCmJB9nG9V/x9ySKrwjOdXwHQEUE=; b=w2DNqIwXk2oAnAjlwjd5NIwgETkU67snOf1CzTzmLaoMijlBZgczszgJ+Kw8Me+esI OA6MT2F9JMNIRQzP1cCcbItR/5By26K4cCbjhJlcJL3SPa8i1mS0FBWAIgim/2xrfh2q b+p5ogIxyz/COppTtOvkkfQHBwx8kV8xZ8k2WJN+Q09QBFsXjWkvbCCpaXB3NNNySKe9 81AD+zbUNjUjUMq4H4B/A2nyHE7z0TbOhaHfV3bdff44GAQoi1+N+UpkYfPfnWW9pPsI grqVkM2B88mmTa+TSgRd8JR/986kpeNKQvXCe9t0Py5RlqMj3XMRJllVzpyx+ZOTJ1aA xVyg== X-Forwarded-Encrypted: i=1; AJvYcCXbCcXyJw+f14QM5qnPqyvyDzXynq+FRRygXpI3Q0tQ9O5Kx96SbkMY+VdEfRqrubgYRqWH+8vUOOTb@nongnu.org X-Gm-Message-State: AOJu0Yye1imCqUDG4bBNt3v2hT4YWg0V9rXGHLXK5IE4Yjpk0wNVTkyz TxgHmiS2xcpkgaNQU642M0uMffX3o+uJNaKt4BM2bwDgFZVsah6Bsw4iEN/B8snisWYu9ZdZmTj B X-Gm-Gg: ASbGncuZDfQujB3qZx+4Db+XyOrblfrtsQvVW2IckgdGc2TDs2w03tfBN4hEgt42+Un Tg7J1e7KwY5IL34Qtf7L19clG5VLYNoQpnMh5rOEEc2/dI+uFD3hx7VP1Gg0Wfw5SZ0ah4PzBsm A2kjFJ1x4ztvunN1ETev/IVqrQJCTc7i/JcS3swB5gg2nLCP6+ayhC0Vq/FReCYa43MVIvoGj8g LGOmpj4Hdrxii73FnHMHw6mF9+U2TQK370xV60AA7RJbIJnZql301YjnLrCNDehaSaMveVzWfhc 7AMzEn2TZUgJSVsg6Ze2 X-Received: by 2002:a05:6000:1acd:b0:385:e37a:2a56 with SMTP id ffacd0b85a97d-38c520964d4mr13115636f8f.52.1738428044843; Sat, 01 Feb 2025 08:40:44 -0800 (PST) Received: from orth.archaic.org.uk (orth.archaic.org.uk. [2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-438dcc81d74sm127401525e9.37.2025.02.01.08.40.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 01 Feb 2025 08:40:43 -0800 (PST) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH v2 21/69] target/arm: Handle FPCR.NEP for scalar FABS and FNEG Date: Sat, 1 Feb 2025 16:39:24 +0000 Message-Id: <20250201164012.1660228-22-peter.maydell@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250201164012.1660228-1-peter.maydell@linaro.org> References: <20250201164012.1660228-1-peter.maydell@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::333; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x333.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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Handle FPCR.NEP merging for scalar FABS and FNEG; this requires an extra parameter to do_fp1_scalar_int(), since FMOV scalar does not have the merging behaviour. Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson --- target/arm/tcg/translate-a64.c | 27 ++++++++++++++++++++------- 1 file changed, 20 insertions(+), 7 deletions(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index f31ac3b9549..35db806d0b7 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -8437,21 +8437,30 @@ typedef struct FPScalar1Int { } FPScalar1Int; static bool do_fp1_scalar_int(DisasContext *s, arg_rr_e *a, - const FPScalar1Int *f) + const FPScalar1Int *f, + bool merging) { switch (a->esz) { case MO_64: if (fp_access_check(s)) { TCGv_i64 t = read_fp_dreg(s, a->rn); f->gen_d(t, t); - write_fp_dreg(s, a->rd, t); + if (merging) { + write_fp_dreg_merging(s, a->rd, a->rd, t); + } else { + write_fp_dreg(s, a->rd, t); + } } break; case MO_32: if (fp_access_check(s)) { TCGv_i32 t = read_fp_sreg(s, a->rn); f->gen_s(t, t); - write_fp_sreg(s, a->rd, t); + if (merging) { + write_fp_sreg_merging(s, a->rd, a->rd, t); + } else { + write_fp_sreg(s, a->rd, t); + } } break; case MO_16: @@ -8461,7 +8470,11 @@ static bool do_fp1_scalar_int(DisasContext *s, arg_rr_e *a, if (fp_access_check(s)) { TCGv_i32 t = read_fp_hreg(s, a->rn); f->gen_h(t, t); - write_fp_sreg(s, a->rd, t); + if (merging) { + write_fp_hreg_merging(s, a->rd, a->rd, t); + } else { + write_fp_sreg(s, a->rd, t); + } } break; default: @@ -8475,21 +8488,21 @@ static const FPScalar1Int f_scalar_fmov = { tcg_gen_mov_i32, tcg_gen_mov_i64, }; -TRANS(FMOV_s, do_fp1_scalar_int, a, &f_scalar_fmov) +TRANS(FMOV_s, do_fp1_scalar_int, a, &f_scalar_fmov, false) static const FPScalar1Int f_scalar_fabs = { gen_vfp_absh, gen_vfp_abss, gen_vfp_absd, }; -TRANS(FABS_s, do_fp1_scalar_int, a, &f_scalar_fabs) +TRANS(FABS_s, do_fp1_scalar_int, a, &f_scalar_fabs, true) static const FPScalar1Int f_scalar_fneg = { gen_vfp_negh, gen_vfp_negs, gen_vfp_negd, }; -TRANS(FNEG_s, do_fp1_scalar_int, a, &f_scalar_fneg) +TRANS(FNEG_s, do_fp1_scalar_int, a, &f_scalar_fneg, true) typedef struct FPScalar1 { void (*gen_h)(TCGv_i32, TCGv_i32, TCGv_ptr);