{"id":2230678,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2230678/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260430000524.56046-12-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":"<20260430000524.56046-12-richard.henderson@linaro.org>","date":"2026-04-30T00:04:54","name":"[v2,11/40] 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/20260430000524.56046-12-richard.henderson@linaro.org/mbox/","series":[{"id":502170,"url":"http://patchwork.ozlabs.org/api/1.1/series/502170/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=502170","date":"2026-04-30T00:04:48","name":"fpu: Export some internals for targets","version":2,"mbox":"http://patchwork.ozlabs.org/series/502170/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2230678/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2230678/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=qFxIt1sh;\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 4g5ZHk0H6cz1yHZ\n\tfor ; Thu, 30 Apr 2026 10:07:46 +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 1wIEum-0006Th-Ii; Wed, 29 Apr 2026 20:06:00 -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 1wIEuj-0006No-Fh\n for qemu-devel@nongnu.org; Wed, 29 Apr 2026 20:05:57 -0400","from mail-pf1-x42d.google.com ([2607:f8b0:4864:20::42d])\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 1wIEuh-0001lh-FU\n for qemu-devel@nongnu.org; Wed, 29 Apr 2026 20:05:57 -0400","by mail-pf1-x42d.google.com with SMTP id\n d2e1a72fcca58-82418b0178cso193073b3a.1\n for ; Wed, 29 Apr 2026 17:05:55 -0700 (PDT)","from stoup.. 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","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":["v2","11/40"]}