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GET /api/patches/1475755/?format=api
{ "id": 1475755, "url": "http://patchwork.ozlabs.org/api/patches/1475755/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20210508014802.892561-62-richard.henderson@linaro.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/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": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20210508014802.892561-62-richard.henderson@linaro.org>", "list_archive_url": null, "date": "2021-05-08T01:47:51", "name": "[61/72] softfloat: Convert floatx80_div to FloatParts", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "e9b88a96362775358782f9be6e732e71dac7be8d", "submitter": { "id": 72104, "url": "http://patchwork.ozlabs.org/api/people/72104/?format=api", "name": "Richard Henderson", "email": "richard.henderson@linaro.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20210508014802.892561-62-richard.henderson@linaro.org/mbox/", "series": [ { "id": 242770, "url": "http://patchwork.ozlabs.org/api/series/242770/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=242770", "date": "2021-05-08T01:46:53", "name": "Convert floatx80 and float128 to FloatParts", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/242770/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1475755/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1475755/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=<UNKNOWN>)", "ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=VVU3RGcM;\n\tdkim-atps=neutral" ], "Received": [ "from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 4FcWWt2SHGz9sTD\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 8 May 2021 12:30:50 +1000 (AEST)", "from localhost ([::1]:39460 helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1lfCjw-00021z-9B\n\tfor incoming@patchwork.ozlabs.org; Fri, 07 May 2021 22:30:48 -0400", "from eggs.gnu.org ([2001:470:142:3::10]:41698)\n by lists.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 1lfC8B-0003Q0-Ts\n for qemu-devel@nongnu.org; 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helo=mail-pf1-x430.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": "2.1.23", "Precedence": "list", "List-Id": "<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>", "Cc": "alex.bennee@linaro.org, david@redhat.com", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "\"Qemu-devel\"\n <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>" }, "content": "Signed-off-by: Richard Henderson <richard.henderson@linaro.org>\n---\n fpu/softfloat.c | 100 +++++++-----------------------------------------\n 1 file changed, 13 insertions(+), 87 deletions(-)", "diff": "diff --git a/fpu/softfloat.c b/fpu/softfloat.c\nindex 4454219f8a..352f359bc5 100644\n--- a/fpu/softfloat.c\n+++ b/fpu/softfloat.c\n@@ -2293,6 +2293,19 @@ float128_div(float128 a, float128 b, float_status *status)\n return float128_round_pack_canonical(pr, status);\n }\n \n+floatx80 floatx80_div(floatx80 a, floatx80 b, float_status *status)\n+{\n+ FloatParts128 pa, pb, *pr;\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 = parts_div(&pa, &pb, status);\n+ return floatx80_round_pack_canonical(pr, status);\n+}\n+\n /*\n * Float to Float conversions\n *\n@@ -5879,93 +5892,6 @@ floatx80 floatx80_round_to_int(floatx80 a, float_status *status)\n \n }\n \n-/*----------------------------------------------------------------------------\n-| Returns the result of dividing the extended double-precision floating-point\n-| value `a' by the corresponding value `b'. The operation is performed\n-| according to the IEC/IEEE Standard for Binary Floating-Point Arithmetic.\n-*----------------------------------------------------------------------------*/\n-\n-floatx80 floatx80_div(floatx80 a, floatx80 b, float_status *status)\n-{\n- bool aSign, bSign, zSign;\n- int32_t aExp, bExp, zExp;\n- uint64_t aSig, bSig, zSig0, zSig1;\n- uint64_t rem0, rem1, rem2, term0, term1, term2;\n-\n- if (floatx80_invalid_encoding(a) || floatx80_invalid_encoding(b)) {\n- float_raise(float_flag_invalid, status);\n- return floatx80_default_nan(status);\n- }\n- aSig = extractFloatx80Frac( a );\n- aExp = extractFloatx80Exp( a );\n- aSign = extractFloatx80Sign( a );\n- bSig = extractFloatx80Frac( b );\n- bExp = extractFloatx80Exp( b );\n- bSign = extractFloatx80Sign( b );\n- zSign = aSign ^ bSign;\n- if ( aExp == 0x7FFF ) {\n- if ((uint64_t)(aSig << 1)) {\n- return propagateFloatx80NaN(a, b, status);\n- }\n- if ( bExp == 0x7FFF ) {\n- if ((uint64_t)(bSig << 1)) {\n- return propagateFloatx80NaN(a, b, status);\n- }\n- goto invalid;\n- }\n- return packFloatx80(zSign, floatx80_infinity_high,\n- floatx80_infinity_low);\n- }\n- if ( bExp == 0x7FFF ) {\n- if ((uint64_t)(bSig << 1)) {\n- return propagateFloatx80NaN(a, b, status);\n- }\n- return packFloatx80( zSign, 0, 0 );\n- }\n- if ( bExp == 0 ) {\n- if ( bSig == 0 ) {\n- if ( ( aExp | aSig ) == 0 ) {\n- invalid:\n- float_raise(float_flag_invalid, status);\n- return floatx80_default_nan(status);\n- }\n- float_raise(float_flag_divbyzero, status);\n- return packFloatx80(zSign, floatx80_infinity_high,\n- floatx80_infinity_low);\n- }\n- normalizeFloatx80Subnormal( bSig, &bExp, &bSig );\n- }\n- if ( aExp == 0 ) {\n- if ( aSig == 0 ) return packFloatx80( zSign, 0, 0 );\n- normalizeFloatx80Subnormal( aSig, &aExp, &aSig );\n- }\n- zExp = aExp - bExp + 0x3FFE;\n- rem1 = 0;\n- if ( bSig <= aSig ) {\n- shift128Right( aSig, 0, 1, &aSig, &rem1 );\n- ++zExp;\n- }\n- zSig0 = estimateDiv128To64( aSig, rem1, bSig );\n- mul64To128( bSig, zSig0, &term0, &term1 );\n- sub128( aSig, rem1, term0, term1, &rem0, &rem1 );\n- while ( (int64_t) rem0 < 0 ) {\n- --zSig0;\n- add128( rem0, rem1, 0, bSig, &rem0, &rem1 );\n- }\n- zSig1 = estimateDiv128To64( rem1, 0, bSig );\n- if ( (uint64_t) ( zSig1<<1 ) <= 8 ) {\n- mul64To128( bSig, zSig1, &term1, &term2 );\n- sub128( rem1, 0, term1, term2, &rem1, &rem2 );\n- while ( (int64_t) rem1 < 0 ) {\n- --zSig1;\n- add128( rem1, rem2, 0, bSig, &rem1, &rem2 );\n- }\n- zSig1 |= ( ( rem1 | rem2 ) != 0 );\n- }\n- return roundAndPackFloatx80(status->floatx80_rounding_precision,\n- zSign, zExp, zSig0, zSig1, status);\n-}\n-\n /*----------------------------------------------------------------------------\n | Returns the remainder of the extended double-precision floating-point value\n | `a' with respect to the corresponding value `b'. The operation is performed\n", "prefixes": [ "61/72" ] }