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 866CA384DEF8; Mon, 19 Feb 2024 13:51:39 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 866CA384DEF8 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 866CA384DEF8 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=1708350701; cv=none; b=KcVKGJUHQbED+0WzicgsEY1Q2MrI5D7F9gTemia1VEl+VeAGR7UrCidO8EgaWKPVhYVxsumNRNntkMQhv3UYsaZ/JpXycBja/mNY7KllQUKxkGQPZ98vdv345amFQSgSWaD9aQa7rc9HBsEsBQXRy4uaPFCQ2CyLddbi6AxPC6Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1708350701; c=relaxed/simple; bh=VYv1wMdTWXNgPdFXhF4pd+kvnGn1Jz7jNHVAYkCHFiE=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=kZ5HcrZLrQpFrUmMA+vQcnQDnN/KFXKkSb7uDMAxjro054XVGlg4KwRYxmTvNoqzE6GyuBKdJ10/rpcg2j7NMLcDcpdK/IHbse6+0UPXUCfHYF2TXIKKvxkWM1H962wBfMyD4QmA00S/mAfxfV9cP6V3UeMeMRUeyTUIhs6emjM= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247474.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 41JDpPRY031470; Mon, 19 Feb 2024 13:51:38 GMT Received: from mxout24.cac.washington.edu (mxout24.cac.washington.edu [140.142.234.158]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3wb6qmewyk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 19 Feb 2024 13:51:38 +0000 Received: from smtp.washington.edu (smtp.washington.edu [140.142.234.157]) by mxout24.cac.washington.edu (8.14.4+UW20.07/8.14.4+UW24.02) with ESMTP id 41JDpaRK001137 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 19 Feb 2024 05:51:36 -0800 X-Auth-Received: from kmatsui-ThinkPad-X1-Carbon-Gen-9.dhcp4.washington.edu ([10.154.74.143]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW24.02) with ESMTPSA id 41JDpZRS001026 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 19 Feb 2024 05:51:36 -0800 X-UW-Orig-Sender: kmatsui@smtp.washington.edu From: Ken Matsui To: gcc-patches@gcc.gnu.org Cc: libstdc++@gcc.gnu.org, Ken Matsui Subject: [PATCH v7 10/22] libstdc++: Optimize std::add_pointer compilation performance Date: Mon, 19 Feb 2024 05:51:17 -0800 Message-ID: <20240219135129.3635809-10-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240219135129.3635809-1-kmatsui@gcc.gnu.org> References: <20240106050754.3054782-1-kmatsui@gcc.gnu.org> <20240219135129.3635809-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: MoHAxwHx_fIrGCqUe4_fuP7QpBONhVRR X-Proofpoint-ORIG-GUID: MoHAxwHx_fIrGCqUe4_fuP7QpBONhVRR X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-19_09,2024-02-19_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 lowpriorityscore=0 malwarescore=0 spamscore=0 priorityscore=1501 bulkscore=0 phishscore=0 impostorscore=0 mlxscore=0 adultscore=0 clxscore=1034 mlxlogscore=521 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2402190103 X-Spam-Status: No, score=-13.0 required=5.0 tests=BAYES_00,GIT_PATCH_0,JMQ_SPF_NEUTRAL,KAM_DMARC_STATUS,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NEUTRAL,TXREP,T_SCC_BODY_TEXT_LINE 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::add_pointer by dispatching to the new __add_pointer built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (add_pointer): Use __add_pointer built-in trait. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index c4585a23df9..6346d1daee2 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -2149,6 +2149,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { }; #endif + /// add_pointer +#if _GLIBCXX_USE_BUILTIN_TRAIT(__add_pointer) + template + struct add_pointer + { using type = __add_pointer(_Tp); }; +#else template struct __add_pointer_helper { using type = _Tp; }; @@ -2157,7 +2163,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct __add_pointer_helper<_Tp, __void_t<_Tp*>> { using type = _Tp*; }; - /// add_pointer template struct add_pointer : public __add_pointer_helper<_Tp> @@ -2170,6 +2175,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template struct add_pointer<_Tp&&> { using type = _Tp*; }; +#endif #if __cplusplus > 201103L /// Alias template for remove_pointer -- 2.43.2