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 CD3DB385C6FC; Thu, 7 Dec 2023 05:56:34 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org CD3DB385C6FC 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 CD3DB385C6FC 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=1701928595; cv=none; b=dorMfNU/4nfxtzCYRt+WpDTbjMkM/gu6Ibyrcpc/Xi3eiVHmlYSAPeZe0kTy3nta5+39SNi/gonWr47FT3jdPOg+c9wrS1oN2r2Xm8f1fzMOk5AfQVhUJs0992L4s1Xcin+rrAyZREqc2qSXjHNF3P/yHQuLai6YR8Xcj1VDJq8= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1701928595; c=relaxed/simple; bh=hzTdHXFqA2VXyzDdRgErAkGU4JBEIxEcO3xg7yxGjF8=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=VGosSmffY+gDffeb+aTwqNgTYYvaTNwIoLM8O+zcT6F6wfsrc+LH3xQ6h7+0jmtFJjYg74Eit7BRWjDLCVxpKh7expRQXYrS1X7jZC9EYyazNzM9wgp3S5V6oq3JWnTn2TLGLJOeRCrCrm9rW4ejoXpB9WBKsXeZamUbfnmO+uQ= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247478.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3B75rSRL005101; Thu, 7 Dec 2023 05:56:34 GMT Received: from mxout22.s.uw.edu (mxout22.s.uw.edu [128.95.242.222]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3uu12qb5qq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 07 Dec 2023 05:56:34 +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 3B75uLOc017762 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 6 Dec 2023 21:56:21 -0800 X-Auth-Received: from kmatsui-ThinkPad-X1-Carbon-Gen-9.dhcp4.washington.edu ([10.154.75.142]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW19.10) with ESMTPSA id 3B75adQO020981 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 6 Dec 2023 21:56:21 -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 v26 23/23] libstdc++: Optimize std::remove_pointer compilation performance Date: Wed, 6 Dec 2023 21:33:18 -0800 Message-ID: <20231207053633.1001720-24-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231207053633.1001720-1-kmatsui@gcc.gnu.org> References: <20231024020424.699427-1-kmatsui@gcc.gnu.org> <20231207053633.1001720-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: Gaa4jBrSLGerLw6DliuULhPeq7MT6fZW X-Proofpoint-GUID: Gaa4jBrSLGerLw6DliuULhPeq7MT6fZW X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-06_20,2023-12-06_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 bulkscore=0 priorityscore=1501 mlxlogscore=566 phishscore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 spamscore=0 mlxscore=0 malwarescore=0 clxscore=1034 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2312060160 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,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::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 2979d79a801..f00c07f94f9 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -2089,6 +2089,12 @@ _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; }; @@ -2097,11 +2103,11 @@ _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 -- 2.43.0