From patchwork Wed Oct 21 04:51:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 1385335 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=NnrzgUgb; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 4CGJFP4tBKz9sRk for ; Wed, 21 Oct 2020 15:59:37 +1100 (AEDT) Received: from localhost ([::1]:52748 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kV6Dn-0001Wl-A6 for incoming@patchwork.ozlabs.org; Wed, 21 Oct 2020 00:59:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57600) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kV66Y-0000bB-8a for qemu-devel@nongnu.org; Wed, 21 Oct 2020 00:52:06 -0400 Received: from mail-pg1-x543.google.com ([2607:f8b0:4864:20::543]:41110) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kV66V-0005jC-Jf for qemu-devel@nongnu.org; Wed, 21 Oct 2020 00:52:05 -0400 Received: by mail-pg1-x543.google.com with SMTP id n9so729819pgt.8 for ; Tue, 20 Oct 2020 21:52:03 -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=uN9ozTRkXRLbdO9UnXnEYOQQpsYxGDATtPNPp1/R6rI=; b=NnrzgUgb8vmZVOOppFrxjfS+FEOu1enFJ15bBOtcw5qh34QV69FefGoY054PgGJH98 0/o0qJpgoT3gXP21FBAYXnpQ1ea4h8Nm8cpONz6tnlboYBRSfWzpbbV9STgh6mxC/pPB Y4rpfPKvdeUUzFbKjvyqrYTdWWD7uQMn14QN058R09wZ2hVgfQ6tDjfnBMQY9z3oWqFV uVxyRKu0MXGFJC9SPLaKXu9UCEUWgEHo+Egm/ZccUnH015p3nVRR32GmAQKOmk5WzfpD qPn9ZGK98k4OIXf6c6/U9NLZo0ejCidQSL4S+R5aL3pH+ZOsLgFzCS8MaojuybhBHTNM p1Vg== 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=uN9ozTRkXRLbdO9UnXnEYOQQpsYxGDATtPNPp1/R6rI=; b=gnJSfcSstCRaBBSwMgKUABwA1OTOkixtg8iU8X4f725I9mFgxDjsye36u5YfEUbDtl acfK8DYzIZytEI/Xv+wIZ5wPDUTB883oUKtR/qKhm/stXtadmDMEjkNedLJQ8OWoHncj QRRrdlV5QdsqynUrPNFOFwY801GdNd9v19ebxb1jTaDHKfiVEuNJG8CnYcBqRTgGpQC9 BpytZ90U82n1KFgQD5DZl1lY7TUUtu9uT84xHFH+5N/TGXEV6GXPDUYbfEf1LxeETYhg lPPU9NKT4fqOp+ze2k1EgSxyQL4DqDaEJZuNa90ZnOuGFISdayQNug9ekWgrlZSluXKn A2IQ== X-Gm-Message-State: AOAM533RaurGWuXTbeXJ49RYp9vOkRnbnXG7mXO5EV22WFDPMpgjfeS/ qRZyVRRa7T6Hsbd6TC0Sh5zqjqXCoN9FtA== X-Google-Smtp-Source: ABdhPJyib66YxomdLwAsHQRR1YMuksUchH6P6Z5Q8mTAUksnzpRnlbUgDIIg8x24lUoM6zrY+Wf88Q== X-Received: by 2002:a62:1d52:0:b029:152:3cf6:e2a8 with SMTP id d79-20020a621d520000b02901523cf6e2a8mr1518957pfd.46.1603255922022; Tue, 20 Oct 2020 21:52:02 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id j11sm620070pfh.143.2020.10.20.21.52.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Oct 2020 21:52:01 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [RFC PATCH 08/15] softfloat: Tidy a * b + inf return Date: Tue, 20 Oct 2020 21:51:42 -0700 Message-Id: <20201021045149.1582203-9-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201021045149.1582203-1-richard.henderson@linaro.org> References: <20201021045149.1582203-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::543; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x543.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: alex.bennee@linaro.org, =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , David Hildenbrand Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" No reason to set values in 'a', when we already have float_class_inf in 'c', and can flip that sign. Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Alex Bennée Reviewed-by: David Hildenbrand Signed-off-by: Richard Henderson --- fpu/softfloat.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 67cfa0fd82..9db55d2b11 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -1380,9 +1380,8 @@ static FloatParts muladd_floats(FloatParts a, FloatParts b, FloatParts c, s->float_exception_flags |= float_flag_invalid; return parts_default_nan(s); } else { - a.cls = float_class_inf; - a.sign = c.sign ^ sign_flip; - return a; + c.sign ^= sign_flip; + return c; } }