From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-00641c01.pphosted.com (mx0b-00641c01.pphosted.com [205.220.177.146]) by sourceware.org (Postfix) with ESMTPS id 2ADDA3856DC0; Fri, 13 Oct 2023 21:25:54 +0000 (GMT) ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 2ADDA3856DC0 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=205.220.177.146 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1697232355; cv=none; b=Bxpy2HyU7DdbuCt9Y1EXBI1E9BzIAYEjx09puXAmvLZc2gs7wvU94tWO8bRvxea80ZYLdQs8qj9l6Z2yOjM0nPjdoZV3L+N7964kWFmWKn2j6nCwS3c9gcOdosXvtEvPMhEJZUhvgJpMKzRDwcTtz1Paez3TfqMKCGeU63ZrIEM= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1697232355; c=relaxed/simple; bh=0fPox7o95TE1z8HSfQmP62vuVnxXyv8pdeoAV2lJZWk=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=L+ClQKGeJunjwYdGb7bBwawS0TbMe5aKONGwmF8hTyaUKMJv2jJIgxiT8dMkTarfE078knanqg5pRxfhnLYC5XMjYeCHRGXew7f3r/TKJPq583j7ftQaJh9ZDaEi6QRuIYFAuIlCUWcWuyGvWsZKfxs0zLeflFjbPjCYfZURxTI= ARC-Authentication-Results: i=1; server2.sourceware.org DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 2ADDA3856DC0 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 Received: from pps.filterd (m0247476.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 39DLMvG5023868; Fri, 13 Oct 2023 21:25:53 GMT Received: from mxout25.s.uw.edu (mxout25.s.uw.edu [140.142.234.175]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3tqc7urxn7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 13 Oct 2023 21:25:53 +0000 Received: from smtp.washington.edu (smtp.washington.edu [140.142.234.157]) by mxout25.s.uw.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 39DLPogu023906 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 13 Oct 2023 14:25:51 -0700 X-Auth-Received: from kmatsui-ThinkPad-X1-Carbon-Gen-9.dhcp4.washington.edu ([10.19.18.191]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW19.10) with ESMTPSA id 39DLC9cO009146 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 13 Oct 2023 14:25:50 -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 v18 21/40] libstdc++: Optimize is_member_object_pointer trait performance Date: Fri, 13 Oct 2023 14:04:17 -0700 Message-ID: <20231013211206.1215663-22-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231013211206.1215663-1-kmatsui@gcc.gnu.org> References: <20231011215049.1052142-1-kmatsui@gcc.gnu.org> <20231013211206.1215663-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: zFyOiZL_YH9qompcXAK8u_y59NVr51IY X-Proofpoint-GUID: zFyOiZL_YH9qompcXAK8u_y59NVr51IY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-10-13_12,2023-10-12_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 bulkscore=0 mlxlogscore=716 phishscore=0 priorityscore=1501 adultscore=0 malwarescore=0 clxscore=1034 spamscore=0 suspectscore=0 lowpriorityscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2309180000 definitions=main-2310130185 X-Spam-Status: No, score=-13.2 required=5.0 tests=BAYES_00,GIT_PATCH_0,JMQ_SPF_NEUTRAL,KAM_DMARC_STATUS,RCVD_IN_DNSWL_LOW,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 performance of the is_member_object_pointer trait by dispatching to the new __is_member_object_pointer built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (is_member_object_pointer): Use __is_member_object_pointer built-in trait. (is_member_object_pointer_v): Likewise. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index e1b10240dc2..792213ebfe8 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -574,6 +574,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct is_rvalue_reference<_Tp&&> : public true_type { }; + /// is_member_object_pointer +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_member_object_pointer) + template + struct is_member_object_pointer + : public __bool_constant<__is_member_object_pointer(_Tp)> + { }; +#else template struct __is_member_object_pointer_helper : public false_type { }; @@ -582,11 +589,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct __is_member_object_pointer_helper<_Tp _Cp::*> : public __not_>::type { }; - /// is_member_object_pointer + template struct is_member_object_pointer : public __is_member_object_pointer_helper<__remove_cv_t<_Tp>>::type { }; +#endif #if _GLIBCXX_USE_BUILTIN_TRAIT(__is_member_function_pointer) /// is_member_function_pointer @@ -3227,9 +3235,16 @@ template inline constexpr bool is_rvalue_reference_v = false; template inline constexpr bool is_rvalue_reference_v<_Tp&&> = true; + +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_member_object_pointer) +template + inline constexpr bool is_member_object_pointer_v = + __is_member_object_pointer(_Tp); +#else template inline constexpr bool is_member_object_pointer_v = is_member_object_pointer<_Tp>::value; +#endif #if _GLIBCXX_USE_BUILTIN_TRAIT(__is_member_function_pointer) template -- 2.42.0