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 9E3E7385DC13; Fri, 20 Oct 2023 14:12:54 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 9E3E7385DC13 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 9E3E7385DC13 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=1697811176; cv=none; b=I/e8ctbYl6cGC7yz0LBaYvzly5Jo5wk4e3RswD4SsgrFqRD8IKFnPvdt5B4n/ih9bY4zYAuRpAF5u4eqR39jZBhBGdB/kVJuIznF5j7JswOSqJPwD+wdirn0eop3VrSCs7dSLjCQWbgeZFQUtwycE3RKi8/5HgAHNYG4jHG2WIY= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1697811176; c=relaxed/simple; bh=SuGRHw4g88ver8n1MtBun+9vWyPVhE/lHa1f7Tviwp4=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=gdXC0jdRQ4Fcbjay+goK0Nyw4gCgBLc2YtlJ+k5PghpeiW8qX7UTY+iBQRJJW/qhMPMSbhqHbWc5dLk7wei/ua+3L+hiqZ3w9CZBhB1OxX4KscAe8bG01ivJqpB6Yc6eaURoE5t673quDcj1VGjO/YOG2r5UtJPDl6zGVQOSTwM= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247479.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 39KEA1UO021795; Fri, 20 Oct 2023 14:12:54 GMT Received: from mxout22.s.uw.edu (mxout22.s.uw.edu [128.95.242.222]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3tuc8gmsg6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 20 Oct 2023 14:12:54 +0000 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+UW22.04) with ESMTP id 39KE8AxE017243 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 20 Oct 2023 07:08:10 -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 39KDvqKh011267 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 20 Oct 2023 07:08:10 -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 v23 29/33] libstdc++: Optimize std::remove_pointer compilation performance Date: Fri, 20 Oct 2023 06:53:48 -0700 Message-ID: <20231020135748.1846670-30-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231020135748.1846670-1-kmatsui@gcc.gnu.org> References: <20231017113822.677344-1-kmatsui@gcc.gnu.org> <20231020135748.1846670-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: te2O_5PkgejgRjivEV5WtUKnJweDZ3DB X-Proofpoint-ORIG-GUID: te2O_5PkgejgRjivEV5WtUKnJweDZ3DB 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=2023-10-20_10,2023-10-19_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=594 mlxscore=0 priorityscore=1501 malwarescore=0 bulkscore=0 impostorscore=0 suspectscore=0 phishscore=0 clxscore=1034 lowpriorityscore=0 adultscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2310170001 definitions=main-2310200116 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 compilation performance of std::remove_pointer by dispatching to the new remove_pointer built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (remove_pointer): Use __remove_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 80ec0fd5475..0641ecfdf2b 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -2103,6 +2103,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION // Pointer modifications. + /// remove_pointer +#if _GLIBCXX_USE_BUILTIN_TRAIT(__remove_pointer) + template + struct remove_pointer + { using type = __remove_pointer(_Tp); }; +#else template struct __remove_pointer_helper { using type = _Tp; }; @@ -2111,11 +2117,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct __remove_pointer_helper<_Tp, _Up*> { using type = _Up; }; - /// remove_pointer template struct remove_pointer : public __remove_pointer_helper<_Tp, __remove_cv_t<_Tp>> { }; +#endif template struct __add_pointer_helper -- 2.42.0