{"id":2228447,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2228447/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260426134002.865628-60-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":"<20260426134002.865628-60-richard.henderson@linaro.org>","date":"2026-04-26T13:39:36","name":"[59/84] fpu: Export unpack_canonical and round_pack_canonical routines","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"a8cfaf4def532cc52e3e10f547b75afe5581a26a","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/20260426134002.865628-60-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/2228447/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2228447/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=E80w3rIK;\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 4g3Slx5DHbz1yHg\n\tfor ; Sun, 26 Apr 2026 23:51:25 +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-0008Vc-TY; 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 1wGzoE-0005vr-Iw\n for qemu-devel@nongnu.org; Sun, 26 Apr 2026 09:46:11 -0400","from mail-pl1-x62a.google.com ([2607:f8b0:4864:20::62a])\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-0001Vw-C7\n for qemu-devel@nongnu.org; Sun, 26 Apr 2026 09:46:06 -0400","by mail-pl1-x62a.google.com with SMTP id\n d9443c01a7336-2b4583f0a1aso58280805ad.3\n for ; Sun, 26 Apr 2026 06:45:51 -0700 (PDT)","from stoup.. ([180.233.125.15]) by smtp.gmail.com with ESMTPSA id\n d9443c01a7336-2b5faa34ea7sm280544085ad.34.2026.04.26.06.45.48\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Sun, 26 Apr 2026 06:45:50 -0700 (PDT)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=linaro.org; s=google; t=1777211151; x=1777815951; 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=8NNGGFXJ7ObWl7bIfWdwNZWMHdVi1ldGDKtY92ZvWpw=;\n b=E80w3rIKvS/rOTtr3CxUGWcus2ziafgIM6bnJKJf9RYQxnvOemFO1OlvsvAlYTf08Q\n CPK0hmtsTZnEmuMTkqIT8DRd1nI9ETy0gpb14kPnnNR0DFkaoHokWYRdCCviB0Jr25/k\n VOnXlR4gKJPANE60G4vkqj9iV/TsPqIqEfnIgz7nwFcTvkYAwWZs3PslG1b66tWBbaiC\n sHBLYkiijVN/VWWvc9cg7IDTp6uzVideuKyCphCjY/m/A+AnkZQo8mBDHb4D1rmPmaVt\n FqDZatBp8Gi587Yfy6Wdg1fUWBfSuoWGkNkjLZ7wUO71B23EZ28+Oxk2tKgfTIcYGYUW\n BO7w==","X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1777211151; x=1777815951;\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=8NNGGFXJ7ObWl7bIfWdwNZWMHdVi1ldGDKtY92ZvWpw=;\n b=JvA2J0tzPngnW0VFaehSmsa73EMguoAgsfwY8LLnjXz0QI+cWIosLZXej+ZDM3O6JW\n 3ho3ZziaFvKrOvPmmaZEdhjIoV7IxDxTD080U88AkXvtGC6OA5V/T0aOwOA7zb+/bEUe\n q1H05YkhKiD/zQoOXIT65BAiLpsQDmjGXSfNd3CnM8rEETUrgsmbnomMGZTpU3uw3Ac7\n mUUkFfeFsb+V9/asUqhMT6v2ggmQY93GtcFQf0rDQ7XRRRu1W6dz57YN/CHLZS1uGoeH\n Ymo0PyyztyCaicJ0g8lW44dOn01bMuv0YH8BnOKAML1oI4rzpBypovA/36y9APK4VXpE\n NlPw==","X-Gm-Message-State":"AOJu0YxM6CIwHtYmEQHAAMBasXt7f5WJSinYFx2ubcwY2CbvVmeviGb6\n FbTSNvjbp1WoI1OB7swkz8/8MmjkOgf0ASd5RfZ3F+Pswno1N3i4LYUBu+r+OSUrZ54AJfm89kG\n mvXevHS0=","X-Gm-Gg":"AeBDievWDZHtWDUCdv6MxVlX2SwGAelYnq86XFWW3/n6lY51DBpX85QVTL7eOBQ9X+t\n dxI1ClA7C2sHhmoZSFBqmZeAOoyBwl9nTLvFKfYMW09yUapV31vn02lF/dRuxcXre22CEuEWe/v\n 0+DWz95w6Hw0hxhE3E08y2+FOpltImHgQcUWwq5CxbOXScb9jF242OdZmIuxApui2jTTrhj3GxH\n EsBgNsUCdzHW2h6LLAjNslKlYdSN3/xadj5Z4J09JYMceOSpTee+qc93/YQ+OXqNOl99vkI1R5g\n ItmTR1yED2wcicftJ16wL109yAGzXjtpjz/sKny7B6qGk/nM9tJJ6PFJKPwDyTzJmMPyTme2J/q\n ln9MAMIkLBPcFk3ek4cMFD1OWMPAuk9OaFpo6KWS7EYaGB6L+BCs4W3XIYd2PDHgo78RHsBkd+Z\n P4RYYYL/kcm5/mS39QM4AwZQu3mQDEV49Yny7xeWiWmXjEx6vACQk=","X-Received":"by 2002:a17:903:b8f:b0:2b2:5857:583e with SMTP id\n d9443c01a7336-2b5f9fc0641mr399097725ad.31.1777211150695;\n Sun, 26 Apr 2026 06:45:50 -0700 (PDT)","From":"Richard Henderson ","To":"qemu-devel@nongnu.org","Cc":"qemu-arm@nongnu.org,\n\tqemu-s390x@nongnu.org","Subject":"[PATCH 59/84] fpu: Export unpack_canonical and round_pack_canonical\n routines","Date":"Sun, 26 Apr 2026 23:39:36 +1000","Message-ID":"<20260426134002.865628-60-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::62a;\n envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62a.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":"Export the unpacking and repacking into the various formats.\n\nSigned-off-by: Richard Henderson \n---\n include/fpu/softfloat-parts.h | 30 ++++++++++++++++++++++\n fpu/softfloat.c | 47 ++++++++++++++---------------------\n 2 files changed, 49 insertions(+), 28 deletions(-)","diff":"diff --git a/include/fpu/softfloat-parts.h b/include/fpu/softfloat-parts.h\nindex a3ae12bb45..f631c38c79 100644\n--- a/include/fpu/softfloat-parts.h\n+++ b/include/fpu/softfloat-parts.h\n@@ -133,4 +133,34 @@ typedef struct {\n uint64_t frac_lo;\n } FloatParts128;\n \n+/*\n+ * Unpack routines from a specific floating-point format.\n+ */\n+\n+FloatParts64 float4_e2m1_unpack_canonical(float4_e2m1 f, float_status *s);\n+FloatParts64 float8_e4m3_unpack_canonical(float8_e4m3 f, float_status *s);\n+FloatParts64 float8_e5m2_unpack_canonical(float8_e5m2 f, float_status *s);\n+FloatParts64 float16_unpack_canonical(float16 f, float_status *s);\n+FloatParts64 bfloat16_unpack_canonical(bfloat16 f, float_status *s);\n+FloatParts64 float32_unpack_canonical(float32 f, float_status *s);\n+FloatParts64 float64_unpack_canonical(float64 f, float_status *s);\n+FloatParts128 float128_unpack_canonical(float128 f, float_status *s);\n+/* Returns false if the encoding is invalid. */\n+bool floatx80_unpack_canonical(FloatParts128 *p, floatx80 f, float_status *s);\n+\n+/*\n+ * Pack routines to a specific floating-point format.\n+ */\n+\n+float8_e4m3 float8_e4m3_round_pack_canonical(FloatParts64 *p, float_status *s,\n+ bool saturate);\n+float8_e5m2 float8_e5m2_round_pack_canonical(FloatParts64 *p, float_status *s,\n+ bool saturate);\n+float16 float16_round_pack_canonical(FloatParts64 *p, float_status *s);\n+bfloat16 bfloat16_round_pack_canonical(FloatParts64 *p, float_status *s);\n+float32 float32_round_pack_canonical(FloatParts64 *p, float_status *s);\n+float64 float64_round_pack_canonical(FloatParts64 *p, float_status *s);\n+float128 float128_round_pack_canonical(FloatParts128 *p, float_status *s);\n+floatx80 floatx80_round_pack_canonical(FloatParts128 *p, float_status *s);\n+\n #endif\ndiff --git a/fpu/softfloat.c b/fpu/softfloat.c\nindex d3277e3f60..b857c13d91 100644\n--- a/fpu/softfloat.c\n+++ b/fpu/softfloat.c\n@@ -1296,21 +1296,21 @@ static const uint16_t rsqrt_tab[128] = {\n * Pack/unpack routines with a specific FloatFmt.\n */\n \n-static FloatParts64 float4_e2m1_unpack_canonical(float4_e2m1 f, float_status *s)\n+FloatParts64 float4_e2m1_unpack_canonical(float4_e2m1 f, float_status *s)\n {\n FloatParts64 p = unpack_raw64(&float4_e2m1_params, f);\n parts64_canonicalize(&p, s, &float4_e2m1_params);\n return p;\n }\n \n-static FloatParts64 float8_e4m3_unpack_canonical(float8_e4m3 f, float_status *s)\n+FloatParts64 float8_e4m3_unpack_canonical(float8_e4m3 f, float_status *s)\n {\n FloatParts64 p = unpack_raw64(&float8_e4m3_params, f);\n parts64_canonicalize(&p, s, &float8_e4m3_params);\n return p;\n }\n \n-static FloatParts64 float8_e5m2_unpack_canonical(float8_e5m2 f, float_status *s)\n+FloatParts64 float8_e5m2_unpack_canonical(float8_e5m2 f, float_status *s)\n {\n FloatParts64 p = unpack_raw64(&float8_e5m2_params, f);\n parts64_canonicalize(&p, s, &float8_e5m2_params);\n@@ -1325,29 +1325,27 @@ static FloatParts64 float16a_unpack_canonical(float16 f, float_status *s,\n return p;\n }\n \n-static FloatParts64 float16_unpack_canonical(float16 f, float_status *s)\n+FloatParts64 float16_unpack_canonical(float16 f, float_status *s)\n {\n return float16a_unpack_canonical(f, s, &float16_params);\n }\n \n-static FloatParts64 bfloat16_unpack_canonical(bfloat16 f, float_status *s)\n+FloatParts64 bfloat16_unpack_canonical(bfloat16 f, float_status *s)\n {\n FloatParts64 p = unpack_raw64(&bfloat16_params, f);\n parts64_canonicalize(&p, s, &bfloat16_params);\n return p;\n }\n \n-static float8_e4m3 float8_e4m3_round_pack_canonical(FloatParts64 *p,\n- float_status *s,\n- bool saturate)\n+float8_e4m3 float8_e4m3_round_pack_canonical(FloatParts64 *p, float_status *s,\n+ bool saturate)\n {\n parts64_uncanon(p, s, &float8_e4m3_params, saturate);\n return pack_raw64(p, &float8_e4m3_params);\n }\n \n-static float8_e5m2 float8_e5m2_round_pack_canonical(FloatParts64 *p,\n- float_status *s,\n- bool saturate)\n+float8_e5m2 float8_e5m2_round_pack_canonical(FloatParts64 *p, float_status *s,\n+ bool saturate)\n {\n parts64_uncanon(p, s, &float8_e5m2_params, saturate);\n return pack_raw64(p, &float8_e5m2_params);\n@@ -1361,42 +1359,38 @@ static float16 float16a_round_pack_canonical(FloatParts64 *p,\n return pack_raw64(p, &float16_params);\n }\n \n-static float16 float16_round_pack_canonical(FloatParts64 *p,\n- float_status *s)\n+float16 float16_round_pack_canonical(FloatParts64 *p, float_status *s)\n {\n return float16a_round_pack_canonical(p, s, &float16_params);\n }\n \n-static bfloat16 bfloat16_round_pack_canonical(FloatParts64 *p,\n- float_status *s)\n+bfloat16 bfloat16_round_pack_canonical(FloatParts64 *p, float_status *s)\n {\n parts64_uncanon(p, s, &bfloat16_params, false);\n return pack_raw64(p, &bfloat16_params);\n }\n \n-static FloatParts64 float32_unpack_canonical(float32 f, float_status *s)\n+FloatParts64 float32_unpack_canonical(float32 f, float_status *s)\n {\n FloatParts64 p = unpack_raw64(&float32_params, f);\n parts64_canonicalize(&p, s, &float32_params);\n return p;\n }\n \n-static float32 float32_round_pack_canonical(FloatParts64 *p,\n- float_status *s)\n+float32 float32_round_pack_canonical(FloatParts64 *p, float_status *s)\n {\n parts64_uncanon(p, s, &float32_params, false);\n return pack_raw64(p, &float32_params);\n }\n \n-static FloatParts64 float64_unpack_canonical(float64 f, float_status *s)\n+FloatParts64 float64_unpack_canonical(float64 f, float_status *s)\n {\n FloatParts64 p = unpack_raw64(&float64_params, f);\n parts64_canonicalize(&p, s, &float64_params);\n return p;\n }\n \n-static float64 float64_round_pack_canonical(FloatParts64 *p,\n- float_status *s)\n+float64 float64_round_pack_canonical(FloatParts64 *p, float_status *s)\n {\n parts64_uncanon(p, s, &float64_params, false);\n return pack_raw64(p, &float64_params);\n@@ -1451,23 +1445,21 @@ static float64 float64r32_round_pack_canonical(FloatParts64 *p,\n return float64r32_pack_raw(p);\n }\n \n-static FloatParts128 float128_unpack_canonical(float128 f, float_status *s)\n+FloatParts128 float128_unpack_canonical(float128 f, float_status *s)\n {\n FloatParts128 p = float128_unpack_raw(f);\n parts128_canonicalize(&p, s, &float128_params);\n return p;\n }\n \n-static float128 float128_round_pack_canonical(FloatParts128 *p,\n- float_status *s)\n+float128 float128_round_pack_canonical(FloatParts128 *p, float_status *s)\n {\n parts128_uncanon(p, s, &float128_params, false);\n return float128_pack_raw(p);\n }\n \n /* Returns false if the encoding is invalid. */\n-static bool floatx80_unpack_canonical(FloatParts128 *p, floatx80 f,\n- float_status *s)\n+bool floatx80_unpack_canonical(FloatParts128 *p, floatx80 f, float_status *s)\n {\n /* Ensure rounding precision is set before beginning. */\n switch (s->floatx80_rounding_precision) {\n@@ -1503,8 +1495,7 @@ static bool floatx80_unpack_canonical(FloatParts128 *p, floatx80 f,\n return true;\n }\n \n-static floatx80 floatx80_round_pack_canonical(FloatParts128 *p,\n- float_status *s)\n+floatx80 floatx80_round_pack_canonical(FloatParts128 *p, float_status *s)\n {\n const FloatFmt *fmt = &floatx80_params[s->floatx80_rounding_precision];\n uint64_t frac;\n","prefixes":["59/84"]}