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GET /api/1.1/patches/2230696/?format=api
{ "id": 2230696, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2230696/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260430000524.56046-32-richard.henderson@linaro.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.1/projects/14/?format=api", "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": "<20260430000524.56046-32-richard.henderson@linaro.org>", "date": "2026-04-30T00:05:14", "name": "[v2,31/40] fpu: Return struct from parts{64,128}_addsub", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "9316c89d72a770b6543af5da176de760d8374fc1", "submitter": { "id": 72104, "url": "http://patchwork.ozlabs.org/api/1.1/people/72104/?format=api", "name": "Richard Henderson", "email": "richard.henderson@linaro.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260430000524.56046-32-richard.henderson@linaro.org/mbox/", "series": [ { "id": 502170, "url": "http://patchwork.ozlabs.org/api/1.1/series/502170/?format=api", "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/2230696/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2230696/checks/", "tags": {}, "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "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=weF3mYOL;\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 4g5ZMG2Lmmz1yHv\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 30 Apr 2026 10:10:50 +1000 (AEST)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists1p.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1wIEvu-0000HN-Ew; Wed, 29 Apr 2026 20:07:10 -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 <richard.henderson@linaro.org>)\n id 1wIEvU-0008AR-DV\n for qemu-devel@nongnu.org; Wed, 29 Apr 2026 20:06:52 -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 <richard.henderson@linaro.org>)\n id 1wIEvR-0001wG-Fy\n for qemu-devel@nongnu.org; Wed, 29 Apr 2026 20:06:43 -0400", "by mail-pg1-x532.google.com with SMTP id\n 41be03b00d2f7-c795eacbeb0so104427a12.2\n for <qemu-devel@nongnu.org>; Wed, 29 Apr 2026 17:06:40 -0700 (PDT)", "from stoup.. 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"<20260430000524.56046-1-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 <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "At the same time, export.\n\nSigned-off-by: Richard Henderson <richard.henderson@linaro.org>\n---\n include/fpu/softfloat-parts.h | 5 ++++\n fpu/softfloat.c | 30 +++++++++++------------\n fpu/softfloat-parts.c.inc | 45 ++++++++++++++++++-----------------\n 3 files changed, 43 insertions(+), 37 deletions(-)", "diff": "diff --git a/include/fpu/softfloat-parts.h b/include/fpu/softfloat-parts.h\nindex 68884e8047..a24678ea2b 100644\n--- a/include/fpu/softfloat-parts.h\n+++ b/include/fpu/softfloat-parts.h\n@@ -182,6 +182,11 @@ FloatParts128 parts128_return_nan(const FloatParts128 *a, float_status *s);\n * Operations\n */\n \n+FloatParts64 parts64_addsub(const FloatParts64 *a, const FloatParts64 *b,\n+ float_status *s, bool subtract);\n+FloatParts128 parts128_addsub(const FloatParts128 *a, const FloatParts128 *b,\n+ float_status *s, bool subtract);\n+\n FloatRelation parts64_compare(const FloatParts64 *a, const FloatParts64 *b,\n float_status *s, bool quiet);\n FloatRelation parts128_compare(const FloatParts128 *a, const FloatParts128 *b,\ndiff --git a/fpu/softfloat.c b/fpu/softfloat.c\nindex 34ef590856..cd03ace323 100644\n--- a/fpu/softfloat.c\n+++ b/fpu/softfloat.c\n@@ -1582,9 +1582,9 @@ float16_addsub(float16 a, float16 b, float_status *status, bool subtract)\n {\n FloatParts64 pa = float16_unpack_canonical(a, status);\n FloatParts64 pb = float16_unpack_canonical(b, status);\n- FloatParts64 *pr = parts64_addsub(&pa, &pb, status, subtract);\n+ FloatParts64 pr = parts64_addsub(&pa, &pb, status, subtract);\n \n- return float16_round_pack_canonical(pr, status);\n+ return float16_round_pack_canonical(&pr, status);\n }\n \n float16 float16_add(float16 a, float16 b, float_status *status)\n@@ -1602,9 +1602,9 @@ soft_f32_addsub(float32 a, float32 b, float_status *status, bool subtract)\n {\n FloatParts64 pa = float32_unpack_canonical(a, status);\n FloatParts64 pb = float32_unpack_canonical(b, status);\n- FloatParts64 *pr = parts64_addsub(&pa, &pb, status, subtract);\n+ FloatParts64 pr = parts64_addsub(&pa, &pb, status, subtract);\n \n- return float32_round_pack_canonical(pr, status);\n+ return float32_round_pack_canonical(&pr, status);\n }\n \n static float32 soft_f32_add(float32 a, float32 b, float_status *status)\n@@ -1622,9 +1622,9 @@ soft_f64_addsub(float64 a, float64 b, float_status *status, bool subtract)\n {\n FloatParts64 pa = float64_unpack_canonical(a, status);\n FloatParts64 pb = float64_unpack_canonical(b, status);\n- FloatParts64 *pr = parts64_addsub(&pa, &pb, status, subtract);\n+ FloatParts64 pr = parts64_addsub(&pa, &pb, status, subtract);\n \n- return float64_round_pack_canonical(pr, status);\n+ return float64_round_pack_canonical(&pr, status);\n }\n \n static float64 soft_f64_add(float64 a, float64 b, float_status *status)\n@@ -1717,9 +1717,9 @@ static float64 float64r32_addsub(float64 a, float64 b, float_status *status,\n {\n FloatParts64 pa = float64_unpack_canonical(a, status);\n FloatParts64 pb = float64_unpack_canonical(b, status);\n- FloatParts64 *pr = parts64_addsub(&pa, &pb, status, subtract);\n+ FloatParts64 pr = parts64_addsub(&pa, &pb, status, subtract);\n \n- return float64r32_round_pack_canonical(pr, status);\n+ return float64r32_round_pack_canonical(&pr, status);\n }\n \n float64 float64r32_add(float64 a, float64 b, float_status *status)\n@@ -1737,9 +1737,9 @@ bfloat16_addsub(bfloat16 a, bfloat16 b, float_status *status, bool subtract)\n {\n FloatParts64 pa = bfloat16_unpack_canonical(a, status);\n FloatParts64 pb = bfloat16_unpack_canonical(b, status);\n- FloatParts64 *pr = parts64_addsub(&pa, &pb, status, subtract);\n+ FloatParts64 pr = parts64_addsub(&pa, &pb, status, subtract);\n \n- return bfloat16_round_pack_canonical(pr, status);\n+ return bfloat16_round_pack_canonical(&pr, status);\n }\n \n bfloat16 bfloat16_add(bfloat16 a, bfloat16 b, float_status *status)\n@@ -1757,9 +1757,9 @@ float128_addsub(float128 a, float128 b, float_status *status, bool subtract)\n {\n FloatParts128 pa = float128_unpack_canonical(a, status);\n FloatParts128 pb = float128_unpack_canonical(b, status);\n- FloatParts128 *pr = parts128_addsub(&pa, &pb, status, subtract);\n+ FloatParts128 pr = parts128_addsub(&pa, &pb, status, subtract);\n \n- return float128_round_pack_canonical(pr, status);\n+ return float128_round_pack_canonical(&pr, status);\n }\n \n float128 float128_add(float128 a, float128 b, float_status *status)\n@@ -1775,15 +1775,15 @@ float128 float128_sub(float128 a, float128 b, float_status *status)\n static floatx80 QEMU_FLATTEN\n floatx80_addsub(floatx80 a, floatx80 b, float_status *status, bool subtract)\n {\n- FloatParts128 pa, pb, *pr;\n+ FloatParts128 pa, pb;\n \n if (!floatx80_unpack_canonical(&pa, a, status) ||\n !floatx80_unpack_canonical(&pb, b, status)) {\n return floatx80_default_nan(status);\n }\n \n- pr = parts128_addsub(&pa, &pb, status, subtract);\n- return floatx80_round_pack_canonical(pr, status);\n+ pa = parts128_addsub(&pa, &pb, status, subtract);\n+ return floatx80_round_pack_canonical(&pa, status);\n }\n \n floatx80 floatx80_add(floatx80 a, floatx80 b, float_status *status)\ndiff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc\nindex 0a0f3a4f0b..6aba0e6b18 100644\n--- a/fpu/softfloat-parts.c.inc\n+++ b/fpu/softfloat-parts.c.inc\n@@ -524,15 +524,14 @@ static void partsN(uncanon)(FloatPartsN *p, float_status *s,\n * according to the IEC/IEEE Standard for Binary Floating-Point\n * Arithmetic.\n */\n-static FloatPartsN *partsN(addsub)(FloatPartsN *a, FloatPartsN *b,\n- float_status *s, bool subtract)\n+FloatPartsN partsN(addsub)(const FloatPartsN *a_orig,\n+ const FloatPartsN *b_orig,\n+ float_status *s, bool subtract)\n {\n- bool b_sign = b->sign ^ subtract;\n- int ab_mask = float_cmask(a->cls) | float_cmask(b->cls);\n+ int ab_mask = float_cmask(a_orig->cls) | float_cmask(b_orig->cls);\n \n if (unlikely(ab_mask & float_cmask_anynan)) {\n- *a = partsN(pick_nan)(a, b, s);\n- return a;\n+ return partsN(pick_nan)(a_orig, b_orig, s);\n }\n \n /*\n@@ -541,10 +540,15 @@ static FloatPartsN *partsN(addsub)(FloatPartsN *a, FloatPartsN *b,\n */\n record_denormals_used(ab_mask, s);\n \n- if (a->sign != b_sign) {\n+ FloatPartsN a = *a_orig;\n+ FloatPartsN b = *b_orig;\n+\n+ b.sign ^= subtract;\n+\n+ if (a.sign != b.sign) {\n /* Subtraction */\n if (likely(cmask_is_only_normals(ab_mask))) {\n- if (partsN(sub_normal)(a, b)) {\n+ if (partsN(sub_normal)(&a, &b)) {\n return a;\n }\n /* Subtract was exact, fall through to set sign. */\n@@ -552,28 +556,27 @@ static FloatPartsN *partsN(addsub)(FloatPartsN *a, FloatPartsN *b,\n }\n \n if (ab_mask == float_cmask_zero) {\n- a->sign = s->float_rounding_mode == float_round_down;\n+ a.sign = s->float_rounding_mode == float_round_down;\n return a;\n }\n \n if (ab_mask & float_cmask_inf) {\n- if (a->cls != float_class_inf) {\n+ if (a.cls != float_class_inf) {\n /* N - Inf */\n- goto return_b;\n+ return b;\n }\n- if (b->cls != float_class_inf) {\n+ if (b.cls != float_class_inf) {\n /* Inf - N */\n return a;\n }\n /* Inf - Inf */\n float_raise(float_flag_invalid | float_flag_invalid_isi, s);\n- *a = partsN(default_nan)(s);\n- return a;\n+ return partsN(default_nan)(s);\n }\n } else {\n /* Addition */\n if (likely(cmask_is_only_normals(ab_mask))) {\n- partsN(add_normal)(a, b);\n+ partsN(add_normal)(&a, &b);\n return a;\n }\n \n@@ -582,20 +585,18 @@ static FloatPartsN *partsN(addsub)(FloatPartsN *a, FloatPartsN *b,\n }\n \n if (ab_mask & float_cmask_inf) {\n- a->cls = float_class_inf;\n+ a.cls = float_class_inf;\n return a;\n }\n }\n \n- if (b->cls == float_class_zero) {\n- g_assert(is_anynorm(a->cls));\n+ if (b.cls == float_class_zero) {\n+ g_assert(is_anynorm(a.cls));\n return a;\n }\n \n- g_assert(a->cls == float_class_zero);\n- g_assert(is_anynorm(b->cls));\n- return_b:\n- b->sign = b_sign;\n+ g_assert(a.cls == float_class_zero);\n+ g_assert(is_anynorm(b.cls));\n return b;\n }\n \n", "prefixes": [ "v2", "31/40" ] }