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GET /api/1.1/patches/2228455/?format=api
{ "id": 2228455, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2228455/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260426134002.865628-70-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": "<20260426134002.865628-70-richard.henderson@linaro.org>", "date": "2026-04-26T13:39:46", "name": "[69/84] fpu: Introduce parts64_round_canonical", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "e0404aa7746e90fe65eba92f9dac0dea04cc21c1", "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/20260426134002.865628-70-richard.henderson@linaro.org/mbox/", "series": [ { "id": 501533, "url": "http://patchwork.ozlabs.org/api/1.1/series/501533/?format=api", "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/2228455/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2228455/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=OTvXIRMb;\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 4g3SmY63tGz1yJ1\n\tfor <incoming@patchwork.ozlabs.org>; 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 <qemu-devel-bounces@nongnu.org>)\n\tid 1wGzpa-0008TG-U0; Sun, 26 Apr 2026 09:47:30 -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 1wGzoV-00066S-3n\n for qemu-devel@nongnu.org; Sun, 26 Apr 2026 09:46:25 -0400", "from mail-pl1-x635.google.com ([2607:f8b0:4864:20::635])\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 1wGzoS-0001cS-55\n for qemu-devel@nongnu.org; Sun, 26 Apr 2026 09:46:22 -0400", "by mail-pl1-x635.google.com with SMTP id\n d9443c01a7336-2b7adb38d65so31865765ad.2\n for <qemu-devel@nongnu.org>; Sun, 26 Apr 2026 06:46:17 -0700 (PDT)", "from stoup.. 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helo=mail-pl1-x635.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": "Signed-off-by: Richard Henderson <richard.henderson@linaro.org>\n---\n include/fpu/softfloat-parts.h | 7 +++++++\n fpu/softfloat.c | 19 ++++++++++++++++---\n 2 files changed, 23 insertions(+), 3 deletions(-)", "diff": "diff --git a/include/fpu/softfloat-parts.h b/include/fpu/softfloat-parts.h\nindex 9f7ee34d6a..eb76b47934 100644\n--- a/include/fpu/softfloat-parts.h\n+++ b/include/fpu/softfloat-parts.h\n@@ -175,4 +175,11 @@ FloatParts64 parts64_pick_nan(const FloatParts64 *, const FloatParts64 *,\n FloatParts128 parts128_pick_nan(const FloatParts128 *, const FloatParts128 *,\n float_status *);\n \n+/*\n+ * Operations\n+ */\n+\n+void parts64_round_canonical(FloatParts64 *p, float_status *s,\n+ const FloatFmt *fmt);\n+\n #endif\ndiff --git a/fpu/softfloat.c b/fpu/softfloat.c\nindex e42782c656..0c931842c3 100644\n--- a/fpu/softfloat.c\n+++ b/fpu/softfloat.c\n@@ -1396,6 +1396,21 @@ float64 float64_round_pack_canonical(FloatParts64 *p, float_status *s)\n return pack_raw64(p, &float64_params);\n }\n \n+/*\n+ * Round to Fmt while remaining canonicalized.\n+ */\n+void parts64_round_canonical(FloatParts64 *p, float_status *s,\n+ const FloatFmt *fmt)\n+{\n+ parts64_uncanon(p, s, fmt, false);\n+ /*\n+ * We normally expect uncanon to be followed by pack_raw,\n+ * so we don't actually crop the bits. Do so now.\n+ */\n+ p->frac &= MAKE_64BIT_MASK(0, fmt->frac_size);\n+ parts64_canonicalize(p, s, fmt);\n+}\n+\n static float64 float64r32_pack_raw(FloatParts64 *p)\n {\n /*\n@@ -5175,10 +5190,8 @@ static void parts_s390_divide_to_integer(FloatParts64 *a, FloatParts64 *b,\n /* Round remainder to the target format */\n *r = *r_precise;\n status->float_exception_flags = 0;\n- parts64_uncanon(r, status, fmt, false);\n+ parts64_round_canonical(r, status, fmt);\n r_flags = status->float_exception_flags;\n- r->frac &= (1ULL << fmt->frac_size) - 1;\n- parts64_canonicalize(r, status, fmt);\n \n /* POp table \"Results: DIVIDE TO INTEGER (Part 2 of 2)\" */\n if (is_q_smallish) {\n", "prefixes": [ "69/84" ] }