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 lists1p.gnu.org (lists1p.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 DE0B0CD5BAC for ; Thu, 21 May 2026 14:45:33 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wQ4e4-0003yP-Vm; Thu, 21 May 2026 10:45:09 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wQ4e3-0003wp-HY for qemu-arm@nongnu.org; Thu, 21 May 2026 10:45:07 -0400 Received: from mail-wr1-x436.google.com ([2a00:1450:4864:20::436]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1wQ4e0-0003Vq-T7 for qemu-arm@nongnu.org; Thu, 21 May 2026 10:45:06 -0400 Received: by mail-wr1-x436.google.com with SMTP id ffacd0b85a97d-44ce78ab5feso5269870f8f.0 for ; Thu, 21 May 2026 07:45:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1779374703; x=1779979503; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:user-agent :references:in-reply-to:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=783MGJ2QrLOoE3gfkfV0O2PFHK/94YQhK6UM2ldYWwI=; b=yOrvwrEbGebbX+ph3kYrgA9PGzh2IbeWZNGcPnZufRL1yo44rax7npLCdF+NA5q5Xc ctzuhMpAxVDQ7cl7iDzLsUoBq37mygOPCIfb39p/XDri5sUif4IoKFIOFQTXmpxCNCz3 2MYF4rXM2zBg08nxSdAzD6TJSK16TiLQy0Iu7wWpn7YkrfIVNRLx8SFWWPblQSlr5lo+ rkEsRphedUMFP1fD5oik+y7FwvaPWv/pvwl6qUYK68Lau/pS9AXN21oIW0zW5K+MBG17 IMB+2xiwSJjWM9dOwihJi5DB6KuWPqqdcre/KLuWCY/QIxd3HqgQz6E8/Haxs3YqWTJf RFRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779374703; x=1779979503; h=content-transfer-encoding:mime-version:message-id:date:user-agent :references:in-reply-to:subject:cc:to:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=783MGJ2QrLOoE3gfkfV0O2PFHK/94YQhK6UM2ldYWwI=; b=O8wvwTT7tWk6hNhV86LbJasF6iVBxCPtGlgBa8AgoaNC9hUWqiXNZXinkGjzQ3fg25 TZmnys1SQH9EqvSSEoxppFN9AgXi9ogj02c/Bfi7ukiL0P4xyWkzziotzFuD0kx2+/fF Par2UHUV3c2Cg4oiWKmQ5EfbJc79h3TKZ1HmTWVdXH7exMHA6bbvQJOlS491V9rqd0Vw NWsmVC2PJbVqGo4sH8KPv0w4aodqDc2o3uoRzvizDQ+EhM62t1w6WClVa2OdMyrOOY+G i0kuX1fyzVHHupxr9iJisFADN9OjM3CCY+HyHi2LgzCsM+n0W6pm9L1dcZ7/76aQA7a5 EpDw== X-Gm-Message-State: AOJu0YwByiOg/wiTuxU2m75J6tkGG9TpJDE6319K2f3xGROtFcZSz7Kb EaVn7se2F8VVxswT90RsbN1/VbX5srrlfvp7k3mnO4EKYQ4KRH90EIBEL1/p/HBgBUs= X-Gm-Gg: Acq92OEVBgDYKSeIPsmteek5v1hZy6vpI+JZ0nz0z3L9kVIsjjsM0/gtiJ1JodLsMcm ksgrpIVptTnbyGK6K0+l5h+X8NykYVNeCof9UJOSaeQ8UtNH+05kxItKekgdxAM+JPHlr/04uGi VYDe5HQ6TYP+C1j4AyAKlJ9BsAHj4GW15RX9nT9pvLp+0gJW3ThHc3OD9Wd9aQwaAvfo6ro1myY GMs1mgJKwI1K34MwGVq52PmX2hkxAPVCOR8jB8o2Rk8SpND1H7IkNlgP3A+KS04yP8EBAHTBH/2 jWx3VOXhAiauqwesZ4X6AxH/5wpl5Y9HA/OGqILGrNHg/mv3a+zrZDRWt48g7emR2zQReLeLDCf kNZrFel/hNyFD7l93LSqQiOjqrb00d4uvM7HfVcSLGZZhcrREN76Pzf7fbSxuaPAJuLQTAee326 hSDPkCu4oUC87d0+wmM/nMCrqKHRMzSBpzmw== X-Received: by 2002:a05:6000:25ed:b0:44f:da26:cbb4 with SMTP id ffacd0b85a97d-45ea38d9f0bmr5368576f8f.21.1779374702745; Thu, 21 May 2026 07:45:02 -0700 (PDT) Received: from draig.lan ([185.124.0.195]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-45eaa9358d0sm3071266f8f.26.2026.05.21.07.45.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 May 2026 07:45:02 -0700 (PDT) Received: from draig (localhost [IPv6:::1]) by draig.lan (Postfix) with ESMTP id 213E05F886; Thu, 21 May 2026 15:45:01 +0100 (BST) From: =?utf-8?Q?Alex_Benn=C3=A9e?= To: Peter Maydell Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org, qemu-stable@nongnu.org Subject: Re: [PATCH 1/3] target/arm: SVE2 FMAXP, FMINP must honour AH=1 In-Reply-To: <20260521122913.1565011-2-peter.maydell@linaro.org> (Peter Maydell's message of "Thu, 21 May 2026 13:29:11 +0100") References: <20260521122913.1565011-1-peter.maydell@linaro.org> <20260521122913.1565011-2-peter.maydell@linaro.org> User-Agent: mu4e 1.14.1; emacs 30.1 Date: Thu, 21 May 2026 15:45:01 +0100 Message-ID: <87se7kom8i.fsf@draig.linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::436; envelope-from=alex.bennee@linaro.org; helo=mail-wr1-x436.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=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@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-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Sender: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Peter Maydell writes: > The behaviour of floating-point maximum and minimum insns has > some odd special cases when FPCR.AH=3D1. We get this right in most > places (for instance, the ASIMD FMAXP, FMINP) but forgot about > it for the SVE2 versions of FMAXP and FMINP. > > Cc: qemu-stable@nongnu.org > Fixes: 384433e70983 ("target/arm: Implement FPCR.AH semantics for FMINP a= nd FMAXP") > Signed-off-by: Peter Maydell Reviewed-by: Alex Benn=C3=A9e --=20 Alex Benn=C3=A9e Virtualisation Tech Lead @ Linaro