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 79F3A385840F; Thu, 30 Mar 2023 18:40:04 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 79F3A385840F Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=cs.washington.edu Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=cs.washington.edu 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 32UIYHfK032698; Thu, 30 Mar 2023 18:40:03 GMT Received: from mxout25.s.uw.edu (mxout25.s.uw.edu [140.142.234.175]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3pmtq3gpvj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 30 Mar 2023 18:40:03 +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 32UIdK3v016500 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 30 Mar 2023 11:39:20 -0700 X-Auth-Received: from localhost.localdomain ([10.18.194.223]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW19.10) with ESMTPSA id 32UIdK7F001092 (version=TLSv1.2 cipher=DHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Thu, 30 Mar 2023 11:39:20 -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 v2 0/7] c++, libstdc++: get std::is_object to dispatch to new built-in traits Date: Thu, 30 Mar 2023 11:39:04 -0700 Message-Id: <20230330183911.12640-1-kmatsui@cs.washington.edu> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230326043032.11096-1-kmatsui@cs.washington.edu> References: <20230326043032.11096-1-kmatsui@cs.washington.edu> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: j2rQWqi5bqhYJcMMoEDLOXKWQyYYkNhX X-Proofpoint-GUID: j2rQWqi5bqhYJcMMoEDLOXKWQyYYkNhX X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-30_11,2023-03-30_03,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 malwarescore=0 lowpriorityscore=0 phishscore=0 mlxlogscore=930 mlxscore=0 bulkscore=0 clxscore=1015 spamscore=0 priorityscore=1501 adultscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303200000 definitions=main-2303300147 X-Spam-Status: No, score=-8.2 required=5.0 tests=BAYES_00,KAM_DMARC_STATUS,RCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS,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: Hi, This patch series gets std::is_object to dispatch to built-in traits and implements the following built-in traits, on which std::object depends. * __is_reference * __is_function * __is_void std::is_object was depending on them with disjunction and negation. __not_<__or_, is_reference<_Tp>, is_void<_Tp>>>::type Therefore, this patch uses them directly instead of implementing an additional built-in trait __is_object, which makes the compiler slightly bigger and slower. __bool_constant This would instantiate only __bool_constant and __bool_constant, which can be mostly shared. That is, the purpose of built-in traits is considered as achieved. Changes in v2 * Stopped using std::is_void in helper_functions.h * Squashed is_void-related commits into the commit of is_void implementation Ken Matsui (7): c++: implement __is_reference built-in trait libstdc++: use new built-in trait __is_reference for std::is_reference c++: implement __is_function built-in trait libstdc++: use new built-in trait __is_function for std::is_function c++, libstdc++: implement __is_void built-in trait libstdc++: use new built-in trait __is_void for std::is_void libstdc++: make std::is_object dispatch to new built-in traits gcc/cp/constraint.cc | 9 +++ gcc/cp/cp-trait.def | 3 + gcc/cp/semantics.cc | 12 ++++ gcc/testsuite/g++.dg/ext/has-builtin-1.C | 9 +++ gcc/testsuite/g++.dg/ext/is_function.C | 58 +++++++++++++++++++ gcc/testsuite/g++.dg/ext/is_reference.C | 34 +++++++++++ gcc/testsuite/g++.dg/ext/is_void.C | 35 +++++++++++ gcc/testsuite/g++.dg/tm/pr46567.C | 6 +- libstdc++-v3/include/bits/cpp_type_traits.h | 15 ----- libstdc++-v3/include/debug/helper_functions.h | 5 +- libstdc++-v3/include/std/type_traits | 30 ++++++++++ 11 files changed, 195 insertions(+), 21 deletions(-) create mode 100644 gcc/testsuite/g++.dg/ext/is_function.C create mode 100644 gcc/testsuite/g++.dg/ext/is_reference.C create mode 100644 gcc/testsuite/g++.dg/ext/is_void.C -- 2.40.0