From patchwork Sun Dec 8 22:48:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 848288 Delivered-To: patch@linaro.org Received: by 2002:a5d:50c2:0:b0:385:e875:8a9e with SMTP id f2csp1840169wrt; Sun, 8 Dec 2024 14:50:48 -0800 (PST) X-Forwarded-Encrypted: i=2; AJvYcCV0OyOd3fu5+6lGg0TO8WBs4auZdSzf7AXE9T9AiN/cUh6n8G82dcBtArNq592PuiaUWj6X+g==@linaro.org X-Google-Smtp-Source: AGHT+IF1DqOByIssV5xQtA7W1QKtYEKZUSrVoLQ2/RIgU2Pu/EkdwLTvBAAjGfi5Hqe1edFoNJhf X-Received: by 2002:a05:620a:4592:b0:7b1:559c:58ef with SMTP id af79cd13be357-7b6bcb82edemr2106211585a.57.1733698248431; Sun, 08 Dec 2024 14:50:48 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1733698248; cv=none; d=google.com; s=arc-20240605; b=RAjvZSvlJMT6B8cnKmdqWFiplBXABQmanvdIIyvH0nH7ubGDobpGwYwkaT8oKUk+K7 gNaFquqAi8MNocokc9QA+qbJoJLcaiCCKBsUUocadTyStQtAJLmQwo2iS+zDRVJQvyUy OqLr+txKDo10mZ0LPaFjk92lRufLUJxl8f5FqfRXixt96e9UDXAyOM0mwIzhAGLSouzs tGw59dwkLdZB4JFUbL8suDEUhYEKX4cKV3MV9DfGYVEV/9I2GpsTQOqDQ4blyFzH36O3 9c1lr5dhPDK4adb0O/Xp9zfwF2q0AMlLdRh6I5eUnogti0bSg735R1OIyos4UorNcYp+ EUlA== 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:cc:to :from:dkim-signature; bh=3V0186xH70riO7Fn9lXQ499lIB9ZSqDTvKf2GBot8Cs=; fh=ZTutxOFfSTK00/NSefao3I8YzT34sqQTgDXNvfsMID8=; b=J/vYV/OnUtIQZb8DWyFEXvEcINoAPQMHPCHufoDH4rK0k3yNoRmuJKBNtaZOhSYSD+ f3J13MGU83oHUbq/zYVQi++y2OZUebfVg3Nm37lIJOxrKWBjvOKr01ESjcSGMtLFL2Wh i++Tzj5Z8v3u25nnUPAASxAxGiqe1Xk2nPlrdfU7O+5Ohd0AcXkFzaUczsRgsIam+zDu WlsCIKv/oyI5kNMugwwSA/lBaoCV4jaP4auH41NWw/FWZ3AHY0qnktfuzf58cbzLhG/t ZMRdLMrdVfBtUNTWh7KqLx75cr/mUlEhz6QdLgUcd4Edvx4E8G6cG8sJ9BiIUQ/piOEX HkrA==; dara=google.com ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=h0SaTVpi; 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 6a1803df08f44-6d8da680012si100649326d6.46.2024.12.08.14.50.48 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Sun, 08 Dec 2024 14:50:48 -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=h0SaTVpi; 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 1tKQ5D-00079L-By; Sun, 08 Dec 2024 17:48:59 -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 1tKQ59-000788-LN for qemu-devel@nongnu.org; Sun, 08 Dec 2024 17:48:55 -0500 Received: from mail-oo1-xc29.google.com ([2607:f8b0:4864:20::c29]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1tKQ58-0006DJ-2E for qemu-devel@nongnu.org; Sun, 08 Dec 2024 17:48:55 -0500 Received: by mail-oo1-xc29.google.com with SMTP id 006d021491bc7-5f29e2e756bso246354eaf.3 for ; Sun, 08 Dec 2024 14:48:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1733698133; x=1734302933; 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=3V0186xH70riO7Fn9lXQ499lIB9ZSqDTvKf2GBot8Cs=; b=h0SaTVpiQTkUcj6T2neyk+dcjkjmH0n9jxjzCZnbBqGI3/NWwVHxg3+JIizeOkAqYw FQiilBBZd0KHtpgCGJSTkfM+fk9blHj9jxolhsMT+o3pKe6yRe4UqMAS11GJyvdJ8nIy 4uhcIxLOyjNtJIHXgAq0kKYPpqFgi7D9xSixEJxRQhnM20gvd/k6CWCasoq15WM+XUr7 VqdS82FF+4HgVKGMFGPePz1E5NYpZmbmS+POfjOUggFGEDs0IMmjfy4GlQ+TFr4rbbnn C+Da3cMyLcIls2ISDLzJUvxYbZsF7RoQnNvx4c/LQw9Ne/5UKkVl5HsDDsQFnM/W+buj Gdxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733698133; x=1734302933; 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=3V0186xH70riO7Fn9lXQ499lIB9ZSqDTvKf2GBot8Cs=; b=ojr5/3BF2Dzfcy1u4TgN0jpLef5IdQwsXxJFPncV3b+ZNaDc4qrcJ3zuECVBA39wdC I7ztlJmESoQPOSls1kylxHIqs1fwkb0+BavY1+XsMc4H45L264JGKuw8dWIc17tx9zGm XgbYzJaCFfPAHqV+Q9ysfvfLABZOpV8pYWmoLaLWnJPiN2CWIEozqhMRv7RP6Ckgc8IQ rkdUiAi7879MXjvq/pVVVbMEJx6XDNNvzoSnOuSd9ujX4K3mbZM8SuinB50xR10bSEHS A02+BCMltHgtAiJGEE/pkokozK6LCIn6UD+HxBPoPmifhZY0mEexQhrggJ8m+2bFmAJJ 0ZOg== X-Gm-Message-State: AOJu0YwZXTkGID4vY4SDWI+v1YwwTwYGnvWwAV3ZctLlo7S7kTOCIvmZ +fljAsmJoRsrLNF+qnSL9sxX8bKRB2PFcGhkL+alMxV98bHz5J2AFkf6u4Taef4B6bLdJue9BkJ ixX+wKw== X-Gm-Gg: ASbGncsIX1icSTGc4txMIcxTNUfpyyrAd0DJ95AlSYHQ8awHdA5bPJK6sXi6wUxtvtO K03WAGy6PF2s3UcaCZqJp0h+nwW5UdVY+2n3AB5VmnieAHjOufaipfAna1pS9w6h/VelrcoTZwj UJmLJyxNsK+COqtyb0BK2DtgEdnlEgoxYR0sqhikKf/gPvmi9/V2KGnXBq0TfHHbH757IUjfQp3 gD2seGdHl43j+7jPuOPGVrOo6b6XIWrILyz8nyg3qMx+aN5p0VLWofBK+5uCIfOXEAXFyC1TbW9 zFySA53xuee0IEse6PHrnsqujVvmmI2bqMvc X-Received: by 2002:a05:6820:1614:b0:5ee:d925:d6a4 with SMTP id 006d021491bc7-5f28700e87cmr6880348eaf.3.1733698133017; Sun, 08 Dec 2024 14:48:53 -0800 (PST) Received: from localhost.localdomain (fixed-187-189-51-143.totalplay.net. [187.189.51.143]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-71dc497ee8fsm1925198a34.39.2024.12.08.14.48.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Dec 2024 14:48:52 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: bcain@oss.qualcomm.com, peter.maydell@linaro.org, mark.cave-ayland@ilande.co.uk Subject: [PATCH 05/17] softfloat: Add float_round_nearest_even_max Date: Sun, 8 Dec 2024 16:48:32 -0600 Message-ID: <20241208224844.570491-6-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241208224844.570491-1-richard.henderson@linaro.org> References: <20241208224844.570491-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::c29; envelope-from=richard.henderson@linaro.org; helo=mail-oo1-xc29.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 This rounding mode is used by Hexagon. Signed-off-by: Richard Henderson --- include/fpu/softfloat-types.h | 2 ++ fpu/softfloat-parts.c.inc | 3 +++ 2 files changed, 5 insertions(+) diff --git a/include/fpu/softfloat-types.h b/include/fpu/softfloat-types.h index 8f39691dfd..c6429665ce 100644 --- a/include/fpu/softfloat-types.h +++ b/include/fpu/softfloat-types.h @@ -138,6 +138,8 @@ typedef enum __attribute__((__packed__)) { float_round_to_odd = 5, /* Not an IEEE rounding mode: round to closest odd, overflow to inf */ float_round_to_odd_inf = 6, + /* Not an IEEE rounding mode: round to nearest even, overflow to max */ + float_round_nearest_even_max = 7, } FloatRoundMode; /* diff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc index 5b5969725b..2b6adeef4c 100644 --- a/fpu/softfloat-parts.c.inc +++ b/fpu/softfloat-parts.c.inc @@ -155,6 +155,9 @@ static void partsN(uncanon_normal)(FloatPartsN *p, float_status *s, int exp, flags = 0; switch (s->float_rounding_mode) { + case float_round_nearest_even_max: + overflow_norm = true; + /* fall through */ case float_round_nearest_even: if (N > 64 && frac_lsb == 0) { inc = ((p->frac_hi & 1) || (p->frac_lo & round_mask) != frac_lsbm1