From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3558BC433FE for ; Mon, 17 Oct 2022 06:57:50 +0000 (UTC) Received: from localhost ([::1]:50640 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1okK4L-0003GE-5H for qemu-devel@archiver.kernel.org; Mon, 17 Oct 2022 02:57:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41946) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1okJn6-0005KT-OH for qemu-devel@nongnu.org; Mon, 17 Oct 2022 02:40:00 -0400 Received: from mail.loongson.cn ([114.242.206.163]:57836 helo=loongson.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1okJmz-0002Sl-Dv for qemu-devel@nongnu.org; Mon, 17 Oct 2022 02:39:58 -0400 Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8CxhOSw+Exj8gMAAA--.86S5; Mon, 17 Oct 2022 14:39:47 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Cc: richard.henderson@linaro.org, stefanha@gmail.com Subject: [PULL 3/5] softfloat: logB(0) should raise divideByZero exception Date: Mon, 17 Oct 2022 14:39:42 +0800 Message-Id: <20221017063944.1443723-4-gaosong@loongson.cn> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20221017063944.1443723-1-gaosong@loongson.cn> References: <20221017063944.1443723-1-gaosong@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: AQAAf8CxhOSw+Exj8gMAAA--.86S5 X-Coremail-Antispam: 1UD129KBjvdXoWrKF4rtFyUXry3urWkKr4kWFg_yoWfXrg_ZF yUKrn7uw1q9rW7Ganayw4DJayDJa1fZFs8Xw1qqw1xXan0kr1fG3yvqa1UXrWrur4UW3sr Was3XF4Skws7JjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ Received-SPF: pass client-ip=114.242.206.163; envelope-from=gaosong@loongson.cn; helo=loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-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+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" logB(0) should raise divideByZero exception from IEEE 754-2008 spec 7.3 Suggested-by: Richard Henderson Signed-off-by: Song Gao Reviewed-by: Richard Henderson Message-Id: <20220930024510.800005-4-gaosong@loongson.cn> --- fpu/softfloat-parts.c.inc | 1 + 1 file changed, 1 insertion(+) diff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc index a9f268fcab..247400031c 100644 --- a/fpu/softfloat-parts.c.inc +++ b/fpu/softfloat-parts.c.inc @@ -1436,6 +1436,7 @@ static void partsN(log2)(FloatPartsN *a, float_status *s, const FloatFmt *fmt) parts_return_nan(a, s); return; case float_class_zero: + float_raise(float_flag_divbyzero, s); /* log2(0) = -inf */ a->cls = float_class_inf; a->sign = 1; -- 2.31.1