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 514543870849; Sat, 11 May 2024 09:02:14 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 514543870849 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 514543870849 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=1715418147; cv=none; b=v4eSph9RVBCT2zh2mHIzekNielOpck0jVPBs8skF8mO+lNQOfRpsRfDIE07PVfiC7ULzUI5FrqpSSMqhRrM47AKuk4W7kQXsoPerMWGrYSZYqzh+Aw873dH5bz2rt4z8Hm1jKelyQN+AJvFunWNSvHq4g3n+wVEURCedkKhuvTk= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1715418147; c=relaxed/simple; bh=LRkpd5KbtSwUZwAyt/JaNjAZtfqLkatdU4m2WExOhHE=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=sIaoEuEnx2rdzDC166/NRlPR76h+3x3oFKRTqdwdecn2/p3CLczHN7OnxvrDHxus+IpHul7ut0jZ8vr3xMHusipFKx7IlUrM7SweA4ExjIHQzyiLj/AWX7T7D8xsDs4SZDBqNDKayFm8e3mQXoS7G6c3fuzqIoAqQlN0MECS/0k= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247470.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 44B8ssRm020475; Sat, 11 May 2024 09:02:13 GMT Received: from mxout22.s.uw.edu (mxout22.s.uw.edu [128.95.242.222]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3y219b8n6v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 11 May 2024 09:02:12 +0000 (GMT) Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.54]) by mxout22.s.uw.edu (8.14.4+UW20.07/8.14.4+UW24.02) with ESMTP id 44B92Ar1032662 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 11 May 2024 02:02:10 -0700 X-Auth-Received: from ken-20xw00qgus.dhcp4.washington.edu ([10.154.75.2]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW24.02) with ESMTPSA id 44B92ApN000628 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 11 May 2024 02:02:10 -0700 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 v26 05/13] libstdc++: Optimize std::add_pointer compilation performance Date: Sat, 11 May 2024 02:01:22 -0700 Message-ID: <20240511090130.248174-5-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240511090130.248174-1-kmatsui@gcc.gnu.org> References: <20240510161405.194750-21-kmatsui@gcc.gnu.org> <20240511090130.248174-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: QFEhy57PbX-FvXopxtdd1WDyTR3-JdQY X-Proofpoint-GUID: QFEhy57PbX-FvXopxtdd1WDyTR3-JdQY X-outbound-smtp: 1 x-header: uw-relay-non-domains X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-05-11_04,2024-05-10_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 clxscore=1034 priorityscore=1501 impostorscore=0 mlxscore=0 lowpriorityscore=0 mlxlogscore=558 suspectscore=0 spamscore=0 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405010000 definitions=main-2405110066 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_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::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 1562757f886..6313fde94c2 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 -- 2.44.0