From patchwork Sat May 8 01:47:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 1475713 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; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=pHgCeEDU; 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 4FcVks451pz9sX2 for ; Sat, 8 May 2021 11:55:17 +1000 (AEST) Received: from localhost ([::1]:60722 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lfCBX-0007Th-Ha for incoming@patchwork.ozlabs.org; Fri, 07 May 2021 21:55:15 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40602) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lfC4n-0004Ax-M1 for qemu-devel@nongnu.org; Fri, 07 May 2021 21:48:21 -0400 Received: from mail-pg1-x536.google.com ([2607:f8b0:4864:20::536]:33520) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lfC4k-0003ae-5e for qemu-devel@nongnu.org; Fri, 07 May 2021 21:48:17 -0400 Received: by mail-pg1-x536.google.com with SMTP id i5so3883015pgm.0 for ; Fri, 07 May 2021 18:48:13 -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=1XFPaqmhZZujk8i6xDVlzhC8z+OKd1ONOKE68PwhM5k=; b=pHgCeEDUGQ6Mq8uCqlSnqh15GPZooAPbosj5Lz8PHc7EH7BAHWag7WXLJtL3AUcvR9 qmdx5OZ561cqrUDdnHV/FO9uS/hW8/gMm1NBwDkMq0DndEUZVU2NnwfPGTxgUPWPnTEn U1+gYqx1agVUiuRhH+L9cmGnatQ/Xd/r2ulGyaG5eDYopYGwa1+B8tp3LGwnJbzDiM+c NCnmqxsq4N89QuTkSDYQ8eEI8DRurfBAOfg45LWeY7GOd3KJrbYp9Aap9XBRCvYqP/Fe sxpohvIj0pZWmMxABWjBLI3bGnmkGbup1m3OhM0G0dBTc0f4znwCYzLFJcVuMVFf98In 7tDw== 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=1XFPaqmhZZujk8i6xDVlzhC8z+OKd1ONOKE68PwhM5k=; b=NKnfMLtGHKyaekvows1hF1io2pVIhUIl/NZNL64Mvke0xxKwxds+4igGJcR16XHMFa AToOCtNp4PlfPJLGgKEmRC6FUgg/fOrYuPf2FNITd+gL0/r/yhsT+jRCRLS65nggvOZV XvHrKK4jKcjUkOzWrTHgFByuE6l4HMnfR3zQ84muLkzZuOYiD9TMIHnKKwE+YG1oEObZ gKBJ72HRNxPCnxt62DJi/xAKsWNfOe7K2WHNC1EolQTWdARbN5Tf8ey2buMHzjsZOsMn VqqbstCiHcI6UtcQaSiyEzkYt6Tu8gt/K6MNMK9qxtqa3yNnXCO0a73Z+gctr93oS737 o2pA== X-Gm-Message-State: AOAM533T4WiPoRuAkPZMhrvKjhby058wTenv+UuXV/RYzbijkX98u1IG 74UhHk6IEBsJJvlj4gEjN+rM8jG2j2Fo4Q== X-Google-Smtp-Source: ABdhPJw9LG/RkL427QOY3JzEhz3Ejc4S2JB4yHhUcp7V4Qf7RJ6hsuAb7TiQkTr3UC7K179Q/CwWHg== X-Received: by 2002:aa7:8113:0:b029:278:dfa6:8ac with SMTP id b19-20020aa781130000b0290278dfa608acmr13327701pfi.57.1620438492745; Fri, 07 May 2021 18:48:12 -0700 (PDT) Received: from localhost.localdomain ([71.212.144.24]) by smtp.gmail.com with ESMTPSA id t4sm5819681pfq.165.2021.05.07.18.48.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 May 2021 18:48:12 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 14/72] softfloat: Do not produce a default_nan from parts_silence_nan Date: Fri, 7 May 2021 18:47:04 -0700 Message-Id: <20210508014802.892561-15-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210508014802.892561-1-richard.henderson@linaro.org> References: <20210508014802.892561-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::536; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x536.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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alex.bennee@linaro.org, david@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Require default_nan_mode to be set instead. Signed-off-by: Richard Henderson Reviewed-by: David Hildenbrand Reviewed-by: Alex Bennée --- fpu/softfloat-specialize.c.inc | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/fpu/softfloat-specialize.c.inc b/fpu/softfloat-specialize.c.inc index 487b29155c..5988830c16 100644 --- a/fpu/softfloat-specialize.c.inc +++ b/fpu/softfloat-specialize.c.inc @@ -180,16 +180,15 @@ static FloatParts parts_default_nan(float_status *status) static FloatParts parts_silence_nan(FloatParts a, float_status *status) { g_assert(!no_signaling_nans(status)); -#if defined(TARGET_HPPA) - a.frac &= ~(1ULL << (DECOMPOSED_BINARY_POINT - 1)); - a.frac |= 1ULL << (DECOMPOSED_BINARY_POINT - 2); -#else + g_assert(!status->default_nan_mode); + + /* The only snan_bit_is_one target without default_nan_mode is HPPA. */ if (snan_bit_is_one(status)) { - return parts_default_nan(status); + a.frac &= ~(1ULL << (DECOMPOSED_BINARY_POINT - 1)); + a.frac |= 1ULL << (DECOMPOSED_BINARY_POINT - 2); } else { a.frac |= 1ULL << (DECOMPOSED_BINARY_POINT - 1); } -#endif a.cls = float_class_qnan; return a; }