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[209.51.188.17]) by mx.google.com with ESMTPS id 66si12894555ybb.352.2020.07.13.13.05.02 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Mon, 13 Jul 2020 13:05:03 -0700 (PDT) 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=fail header.i=@linaro.org header.s=google header.b=egGZei3p; 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=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1]:37234 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jv4hC-0007vL-H8 for patch@linaro.org; Mon, 13 Jul 2020 16:05:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:59380) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jv4gY-0007uP-Cw for qemu-devel@nongnu.org; Mon, 13 Jul 2020 16:04:22 -0400 Received: from mail-wr1-x444.google.com ([2a00:1450:4864:20::444]:40987) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jv4gW-0006G5-MA for qemu-devel@nongnu.org; Mon, 13 Jul 2020 16:04:22 -0400 Received: by mail-wr1-x444.google.com with SMTP id z15so18130872wrl.8 for ; Mon, 13 Jul 2020 13:04:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=iJReQOIYVR+hDlxB+L3VcS6ZiNXB7LvJkcVb9PUtdRA=; b=egGZei3pgMwO3u2LoCla+Sc+Qr4psViwJ6QQ5M+pGiBhZjK5OmcgmK4l+Gdzxikwm1 r5hdDPXotD9BVIXVtclv/ukGs4K/78CISsJBh6FU93L+T0MMoECrmHqAuzwb/3lCBwyv 14Hy0xk1GfAD6PVjK3OYr8FpsBvVxwRUTeUCmsrLR38rgaCZCI9iR1VcJFM6d7F/O5Uh r4HS06oTJHTnbVaZq6RsMrpNzxz7ZSA8d7KPCCodTGqqaJaSy75qTnSGILeKHcRhf895 tTGPUGymuEC1kP7ZTfx2VIHN7HT/ceBzccSau531exREEN/ktk0mnQh07Fbn8JbCkj6F CCSQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=iJReQOIYVR+hDlxB+L3VcS6ZiNXB7LvJkcVb9PUtdRA=; b=KzcK4OE2JC9g4RpbiMWGtB21930eiM/qmBULXnhBL5RgRPKi+03ElRMUTwevo2L4ZB e0u/mtbsPI0BnUtNltpUZXl1e7HYK4HjeVy/Akb+7PBHvBjVo2MCZyFdN2Fomj+m+IF7 Oz6Ge++pvMk/8MZitai4fb7O4TdkZwfXrXzc0Xelwd+x1/5+dBC7MhvRKSyeyH0JoV3i 0fKF3cHTIfKW0ucW7d8fIT4fQXz9slUMeZ2GXSsDNcDWLJltZo/AToxugH0Vdpkzctmy tlm2I4t6b6JJXXaY7RnKhXlQJvBzcXVA8B2vB8DWutV9ve2UCAbzTOC/AY0feNYvGekH izwQ== X-Gm-Message-State: AOAM531aY5E7eHOnNcuJuIF/Q/lCRcgscuSxCxKbQrp7fKOPtKMydI31 D593YpUD6kOswzOB7u+3yb02gg== X-Received: by 2002:a05:6000:11cc:: with SMTP id i12mr1193551wrx.224.1594670659382; Mon, 13 Jul 2020 13:04:19 -0700 (PDT) Received: from zen.linaroharston ([51.148.130.216]) by smtp.gmail.com with ESMTPSA id g13sm26056579wro.84.2020.07.13.13.04.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Jul 2020 13:04:16 -0700 (PDT) Received: from zen.lan (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id EEDC81FF90; Mon, 13 Jul 2020 21:04:15 +0100 (BST) From: =?utf-8?q?Alex_Benn=C3=A9e?= To: qemu-devel@nongnu.org Subject: [PATCH v2 04/11] fpu/softfloat: fix up float16 nan recognition Date: Mon, 13 Jul 2020 21:04:08 +0100 Message-Id: <20200713200415.26214-5-alex.bennee@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200713200415.26214-1-alex.bennee@linaro.org> References: <20200713200415.26214-1-alex.bennee@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::444; envelope-from=alex.bennee@linaro.org; helo=mail-wr1-x444.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: fam@euphon.net, Peter Maydell , berrange@redhat.com, robert.foley@linaro.org, =?utf-8?q?Alex_Benn?= =?utf-8?b?w6ll?= , richard.henderson@linaro.org, f4bug@amsat.org, robhenry@microsoft.com, aaron@os.amperecomputing.com, cota@braap.org, kuhn.chenqun@huawei.com, peter.puhov@linaro.org, LIU Zhiwei , aurelien@aurel32.net Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" From: LIU Zhiwei Signed-off-by: LIU Zhiwei Signed-off-by: Alex Bennée Reviewed-by: Richard Henderson Message-Id: <20200712234521.3972-2-zhiwei_liu@c-sky.com> --- fpu/softfloat-specialize.inc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) -- 2.20.1 diff --git a/fpu/softfloat-specialize.inc.c b/fpu/softfloat-specialize.inc.c index 44f5b661f8..034d18199c 100644 --- a/fpu/softfloat-specialize.inc.c +++ b/fpu/softfloat-specialize.inc.c @@ -254,7 +254,7 @@ bool float16_is_quiet_nan(float16 a_, float_status *status) if (snan_bit_is_one(status)) { return (((a >> 9) & 0x3F) == 0x3E) && (a & 0x1FF); } else { - return ((a & ~0x8000) >= 0x7C80); + return ((a >> 9) & 0x3F) == 0x3F; } #endif } @@ -271,7 +271,7 @@ bool float16_is_signaling_nan(float16 a_, float_status *status) #else uint16_t a = float16_val(a_); if (snan_bit_is_one(status)) { - return ((a & ~0x8000) >= 0x7C80); + return ((a >> 9) & 0x3F) == 0x3F; } else { return (((a >> 9) & 0x3F) == 0x3E) && (a & 0x1FF); }