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[187.189.51.143]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-71dc497ee8fsm1925198a34.39.2024.12.08.14.48.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Dec 2024 14:48:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1733698139; x=1734302939; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=5xxQ+Dq7R8GnM1J7sgIMgZ9zk0m58GoMVFOUgAxTchA=; b=r28TckVR3dovnSqAfSZVj4OhWo5my+T/O3dIn38DjlSHMmPEvFnrMEfqoJ5iQguNwH X1Bt4ARqJPP5MQN91j2FcjC+iXUGtFrlaq0jfaWBkHX2u3E9lzh8SsQsITv4tPlKKLqJ 7z7mdu2TX7QoFVa5gVjqige6k3Cr993s+eFlP4p5qwLM4eTQ4xp4DDGBAWO2wGQXi0Q6 Np1bYdVg7/4ud73+o7KcGLiW8+NrrwwP3q6vrZuf/Gb23qP6szFgLhnwT4SZZX5qXW2W iXKvSKmPslpYTL6GAkzc2+aB8IDjdg58LmQ7h9CmDZKcT3oXJDO+ufpOfGsCeyr1uGLW m76g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733698139; x=1734302939; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=5xxQ+Dq7R8GnM1J7sgIMgZ9zk0m58GoMVFOUgAxTchA=; b=CvzOWqBmp4e074xgwi255IWgOzP2k+0P4Qybp3Fbsh5WcxWAkuSIr1I4GR2BwHjVJy 6XC4vMMX5FRbyX3ANUjc2wNxeZPGA3eFUXZ6qtfvqIrzsZN54Bse93txsI5FVMS+zjW4 hQ2/eAcxox9j+xZnQNPvJZ5juXCw9/zloi3+teSihex0lvAV0PTJ6qPZoXRBvk1/BBHa oMJGW0bDqQGpYXaahwnSyVOjgS8TouhDCAhWrqJDGSayNXcsI9t4/W/0nGXPFeo63/lQ ZRlrUcC0wENaBAnRjKpHPeiW1R0InbzkhoTgBrxp+svGPmBbBoNN4eZ6231xsiT7Cj5O WHyQ== X-Gm-Message-State: AOJu0YwpB42H4WxNchPhGLZdWwFdoGqTyNWgkLMvIfiFgFLLNaRXhBcU 6F+H9vrdVu+JfPkHsdoHwxkKVBzdlBnk4l7FF8h1Fl9lNzzf6CP73J2tffBO4wusvKGQI0hpprf 3V3Lvgw== X-Gm-Gg: ASbGncsZSjmegayJvRL5AuO88pN+HWaewgVArHT2LaQRpuUvQjJNbYxvB/oBvFmjeDk i+Jt8ur4wIc2R0uzoXziFfrMjvx0JYJ9D/eGqdRvdSj0LDTkKU5TJ4UfBb0HQoxLQi8/LWBYxU+ YBaF0IR/+jOrQNEsWoPq4I15dVAmdthFVddYlRI507yW2HpLFJvpE5FRlv4/Uk7jRnlkBggKv+n eDgvBzs6cBQgNieUgqh0pqzOvqpw8PiGZedITraYBA4Pc2c2i3BQLpwUimBBDiAoraFi9VJ2nko n5vI9qKYFv72tRRLGEn2bE/psXVqRf+IzxpN X-Google-Smtp-Source: AGHT+IERuQph16M8PSd9N4kNcsyFTPSDkZD5rhoeVbLnzaONZiBvPM8RvWfBbgi3Pt7cIF5PGpR26A== X-Received: by 2002:a05:6830:4114:b0:71d:548d:6f76 with SMTP id 46e09a7af769-71dcf54b629mr7206117a34.26.1733698138847; Sun, 08 Dec 2024 14:48:58 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: bcain@oss.qualcomm.com, peter.maydell@linaro.org, mark.cave-ayland@ilande.co.uk Subject: [PATCH 10/17] target/hexagon: Use float32_muladd_scalbn for helper_sffma_sc Date: Sun, 8 Dec 2024 16:48:37 -0600 Message-ID: <20241208224844.570491-11-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241208224844.570491-1-richard.henderson@linaro.org> References: <20241208224844.570491-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::333; envelope-from=richard.henderson@linaro.org; helo=mail-ot1-x333.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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1733698288999116600 Content-Type: text/plain; charset="utf-8" This instruction has a special case that 0 * x + c returns c without the normal sign folding that comes with 0 + -0. Use the new float_muladd_suppress_add_product_zero to describe this. Signed-off-by: Richard Henderson Reviewed-by: Brian Cain --- target/hexagon/op_helper.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/target/hexagon/op_helper.c b/target/hexagon/op_helper.c index aa5ab4a31f..eb010422bf 100644 --- a/target/hexagon/op_helper.c +++ b/target/hexagon/op_helper.c @@ -1192,15 +1192,10 @@ static float32 check_nan(float32 dst, float32 x, fl= oat_status *fp_status) float32 HELPER(sffma_sc)(CPUHexagonState *env, float32 RxV, float32 RsV, float32 RtV, float32 PuV) { - size4s_t tmp; arch_fpop_start(env); - RxV =3D check_nan(RxV, RxV, &env->fp_status); - RxV =3D check_nan(RxV, RsV, &env->fp_status); - RxV =3D check_nan(RxV, RtV, &env->fp_status); - tmp =3D internal_fmafx(RsV, RtV, RxV, fSXTN(8, 64, PuV), &env->fp_stat= us); - if (!(float32_is_zero(RxV) && is_zero_prod(RsV, RtV))) { - RxV =3D tmp; - } + RxV =3D float32_muladd_scalbn(RsV, RtV, RxV, fSXTN(8, 64, PuV), + float_muladd_suppress_add_product_zero, + &env->fp_status); arch_fpop_end(env); return RxV; } --=20 2.43.0