From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-00641c01.pphosted.com (mx0a-00641c01.pphosted.com [205.220.165.146]) by sourceware.org (Postfix) with ESMTPS id ACD743849AC8; Thu, 2 May 2024 20:16:03 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org ACD743849AC8 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=gcc.gnu.org Authentication-Results: sourceware.org; spf=fail smtp.mailfrom=gcc.gnu.org ARC-Filter: OpenARC Filter v1.0.0 sourceware.org ACD743849AC8 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=205.220.165.146 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1714680987; cv=none; b=FMxl97dL6oLuGPDjbxNBc6qlXtzkRL+qEy6UmwQD311qJabzMpEFFXxJNiBD1uRPt1BObXAxJP62NFlfxUrTZv8tkaItPW7bSUjAwvcWWpQkGVLuw2Dd+BgD4XeVkzkq0NU6KX/eK/eDPSxNMw6m5Sbu9S4R+vkxKFNcMnrL2DU= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1714680987; c=relaxed/simple; bh=RN163wpV98X+X1mtcsm1+6Kt+JydVcxoRpo6vOr/Ae8=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=bmMU+OF3nAfTypHccUGFmtRVKAQo86T9oxCbZDdVjbMeQqO4ChaY8t5tY7XiD6kIRwF9C3FMchvU0sVVKddsYH0NZOHXXX1GtiN8622ng2OSzjxuSaQHJJeN/+vrHV1CQYjdD+iKdhDNSRCyLop5jyWSTdJMkoj+ZBOMbA6n3lE= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247475.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 442K8lJX021473; Thu, 2 May 2024 20:16:02 GMT Received: from mxout25.s.uw.edu (mxout25.s.uw.edu [140.142.234.175]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3xvf54sgw8-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 02 May 2024 20:16:02 +0000 (GMT) Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.132]) by mxout25.s.uw.edu (8.14.4+UW20.07/8.14.4+UW24.02) with ESMTP id 442KFv8c003580 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 2 May 2024 13:15:57 -0700 X-Auth-Received: from ken-20xw00qgus.dhcp4.washington.edu ([10.154.75.239]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW24.02) with ESMTPSA id 442KFqmj009550 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 2 May 2024 13:15:57 -0700 X-UW-Orig-Sender: kmatsui@smtp.washington.edu From: Ken Matsui To: gcc-patches@gcc.gnu.org Cc: libstdc++@gcc.gnu.org, jason@redhat.com, Ken Matsui Subject: [PATCH v18 22/26] libstdc++: Optimize std::rank compilation performance Date: Thu, 2 May 2024 13:12:23 -0700 Message-ID: <20240502201549.459244-23-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240502201549.459244-1-kmatsui@gcc.gnu.org> References: <20240502184529.97337-1-kmatsui@gcc.gnu.org> <20240502201549.459244-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: HuRt1rx4WkYgUcMAQ3Z4AvntMoGqWYWq X-Proofpoint-GUID: HuRt1rx4WkYgUcMAQ3Z4AvntMoGqWYWq X-outbound-smtp: 1 x-header: uw-relay-non-domains X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1011,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-05-02_12,2024-05-02_03,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 mlxlogscore=773 lowpriorityscore=0 mlxscore=0 clxscore=1034 suspectscore=0 phishscore=0 spamscore=0 malwarescore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2404010003 definitions=main-2405020132 X-Spam-Status: No, score=-12.9 required=5.0 tests=BAYES_00,GIT_PATCH_0,JMQ_SPF_NEUTRAL,KAM_DMARC_STATUS,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NEUTRAL,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: This patch optimizes the compilation performance of std::rank by dispatching to the new __array_rank built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (rank): Use __array_rank built-in trait. (rank_v): Likewise. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 4cc587d4e08..e9313205550 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -1473,6 +1473,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION }; /// rank +#if _GLIBCXX_USE_BUILTIN_TRAIT(__array_rank) + template + struct rank + : public integral_constant { }; +#else template struct rank : public integral_constant { }; @@ -1484,6 +1489,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template struct rank<_Tp[]> : public integral_constant::value> { }; +#endif /// extent template @@ -3583,12 +3589,17 @@ template template inline constexpr size_t alignment_of_v = alignment_of<_Tp>::value; +#if _GLIBCXX_USE_BUILTIN_TRAIT(__array_rank) +template + inline constexpr size_t rank_v = __array_rank(_Tp); +#else template inline constexpr size_t rank_v = 0; template inline constexpr size_t rank_v<_Tp[_Size]> = 1 + rank_v<_Tp>; template inline constexpr size_t rank_v<_Tp[]> = 1 + rank_v<_Tp>; +#endif template inline constexpr size_t extent_v = 0; -- 2.44.0