{"id":2228456,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2228456/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260426134002.865628-64-richard.henderson@linaro.org/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.1/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260426134002.865628-64-richard.henderson@linaro.org>","date":"2026-04-26T13:39:40","name":"[63/84] fpu: Sink exp_bias adjustment in float64r32_pack_raw","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"4b29e19e525e95caf7c54a4fcd09cb1446759b60","submitter":{"id":72104,"url":"http://patchwork.ozlabs.org/api/1.1/people/72104/?format=json","name":"Richard Henderson","email":"richard.henderson@linaro.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260426134002.865628-64-richard.henderson@linaro.org/mbox/","series":[{"id":501533,"url":"http://patchwork.ozlabs.org/api/1.1/series/501533/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=501533","date":"2026-04-26T13:38:37","name":"fpu: Export some internals for targets","version":1,"mbox":"http://patchwork.ozlabs.org/series/501533/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2228456/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2228456/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=kfohX+Im;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g3SmY6Byrz1yJJ\n\tfor ; Sun, 26 Apr 2026 23:51:57 +1000 (AEST)","from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists1p.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from )\n\tid 1wGzpb-0008U4-CV; Sun, 26 Apr 2026 09:47:31 -0400","from eggs.gnu.org ([2001:470:142:3::10])\n by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from )\n id 1wGzoF-0005wJ-R5\n for qemu-devel@nongnu.org; Sun, 26 Apr 2026 09:46:11 -0400","from mail-pg1-x532.google.com ([2607:f8b0:4864:20::532])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.90_1) (envelope-from )\n id 1wGzoC-0001Xq-KY\n for qemu-devel@nongnu.org; Sun, 26 Apr 2026 09:46:06 -0400","by mail-pg1-x532.google.com with SMTP id\n 41be03b00d2f7-c70f91776fcso3578833a12.0\n for ; Sun, 26 Apr 2026 06:46:01 -0700 (PDT)","from stoup.. ([180.233.125.15]) by smtp.gmail.com with ESMTPSA id\n d9443c01a7336-2b5faa34ea7sm280544085ad.34.2026.04.26.06.45.58\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Sun, 26 Apr 2026 06:46:00 -0700 (PDT)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=linaro.org; s=google; t=1777211160; x=1777815960; darn=nongnu.org;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:from:to:cc:subject:date\n :message-id:reply-to;\n bh=JqpUFWXlE+yNso214pVWpAnT/3t/2kgkwE5/W87FM+U=;\n b=kfohX+ImAqS1sYo/H8oq8uHfVtZR8DdAd0RgfEd1mY9+Ci1nwQr0ehzK/42HZJ1yZE\n n28xUnF9zE90sj+hkd7q8kUkoA3RNtJqspTLzPaDryBb/Nj7nUMwTuvGHzNLbYS4x1/M\n WBRfU0M3zlurTTabOAZz15e6at8R/fXZ0PbEYxjc4XbYakWHS400Gszpnkjd2Ckcx/go\n iKR5oG9i5keECskULDw0OWsu5EBzKnCOm7GYgWP4O+Fj7zeREF1HzrfBxHtEnqvcYmvI\n F3urPKO0NoExVaOWAuxW/2I9bZmI8tqMA98w6MKZYnz2w5QnPJaW5UD2M+6OVd6vAhfI\n rVzw==","X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1777211160; x=1777815960;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from\n :to:cc:subject:date:message-id:reply-to;\n bh=JqpUFWXlE+yNso214pVWpAnT/3t/2kgkwE5/W87FM+U=;\n b=QeA+rsNezQczP9ry2KUEa4r/aoWPKDZAytATLroFjDbgUYAX1FLefdHUAaPVD6Bxos\n /v30wQVdJ2WY9UxPCdBo+otIdULmSzhXRE8Unxa7cGEDVGmdYG+tLPfravcqe1U5zh55\n e5wOjIdfQziPbjJjQ0rzKmZPyR7Hd3NmCrt+kAo4EHrqG/imUvVGceYUaexdBzu88iIb\n yVk+ZH9QYXxHZPknQvB4s/43ctMhFnLfnbw0PIggM4ulY1HGsuQNQMUW+rFwHKFOhvF8\n hh6ppAsjAfzGcZ3pVa3/im9B3jafL5Iit86Dd3Zma8Myqm652AGcq188a5R7V/oYA811\n QUzg==","X-Gm-Message-State":"AOJu0YwBq/t4EmL2k7a4EMezN/f8J0VOfBTBxvQm8NCbjAcuQ2dvl521\n t0bG/xmIWiqU6RERZgt8HoDVBWPocDW23NoOYInf07aGQLj4ZiDtzuHSrLRpA8UHEbQezyBrhfm\n IofH3zsg=","X-Gm-Gg":"AeBDieubyO0uxEqbcQoPQYnFvRHRQxzYukgP5RxRORwufDhrOsQY3XWOKM86iXp22K9\n JhNuh83U2VVfaKG+E/LpyGPwNDAX+8gz/IgARfN/qXNV2yT+Q4LxZVIwRSB37aAprWXYhiaY5DC\n xhBdvJ80n5+bbWiK31DDwRRoeDeV2Iha7WsRirQyqFHqTv0czjcv5abLZNC0Z4NyC/S2fi+OIme\n TbxRgSEheQvFCxysmwXXQ9hdfNwMiubufap0z83QIfofkmMWuqMYeMN4Xyhz/OQWYhWD8B+O3+E\n pMJ/b5FC5JIXUXL42utA+xK+rg7y+b5dNb8xJDpnVImE9ImuC/BsQR3+d5F3bILXLa5nfUdwtOG\n ixNPEJ547Mnd21MxQLNiB4LjJ2WrPvyR77/YGWDQoxLqX+zz3F3g35otTK1yC0NBiflwKkRTKYr\n Y4mCbdDrrxh+bYqMm2uHpIWABrXMolkcyBcvdcfFWo","X-Received":"by 2002:a17:902:d592:b0:2b0:ccad:de1a with SMTP id\n d9443c01a7336-2b5f9f3aa58mr387107155ad.30.1777211160486;\n Sun, 26 Apr 2026 06:46:00 -0700 (PDT)","From":"Richard Henderson ","To":"qemu-devel@nongnu.org","Cc":"qemu-arm@nongnu.org,\n\tqemu-s390x@nongnu.org","Subject":"[PATCH 63/84] fpu: Sink exp_bias adjustment in float64r32_pack_raw","Date":"Sun, 26 Apr 2026 23:39:40 +1000","Message-ID":"<20260426134002.865628-64-richard.henderson@linaro.org>","X-Mailer":"git-send-email 2.43.0","In-Reply-To":"<20260426134002.865628-1-richard.henderson@linaro.org>","References":"<20260426134002.865628-1-richard.henderson@linaro.org>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","Received-SPF":"pass client-ip=2607:f8b0:4864:20::532;\n envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x532.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,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n 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":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"Share the float32->float64 bias adjustment from both\nthe normal and denormal paths.\n\nSigned-off-by: Richard Henderson \n---\n fpu/softfloat.c | 6 ++----\n 1 file changed, 2 insertions(+), 4 deletions(-)","diff":"diff --git a/fpu/softfloat.c b/fpu/softfloat.c\nindex 7d67e25c17..b7d461bca4 100644\n--- a/fpu/softfloat.c\n+++ b/fpu/softfloat.c\n@@ -1412,14 +1412,12 @@ static float64 float64r32_pack_raw(FloatParts64 *p)\n * in normalized form for float64. Adjust, per canonicalize.\n */\n int shift = frac64_normalize(p);\n- p->exp = (float32_params.frac_shift -\n- float32_params.exp_bias - shift + 1 +\n- float64_params.exp_bias);\n frac64_shr(p, float64_params.frac_shift);\n+ p->exp = float32_params.frac_shift - shift + 1;\n } else {\n frac64_shl(p, float32_params.frac_shift - float64_params.frac_shift);\n- p->exp += float64_params.exp_bias - float32_params.exp_bias;\n }\n+ p->exp += float64_params.exp_bias - float32_params.exp_bias;\n break;\n case float_class_snan:\n case float_class_qnan:\n","prefixes":["63/84"]}