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 CAD81385BC13; Thu, 7 Dec 2023 05:55:31 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org CAD81385BC13 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 CAD81385BC13 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=1701928533; cv=none; b=uhFefM6yOOjwW+C+yW/5BgXTob2fDvuDxk/zgsENFUQnrUbrIf4I+u4gWYPG3JgdLALW/766aM1ij0BwUGFndV/KXwNMzqFMmoCSnzX6mHDYec4jPLmYBHK6SsyME4/0Y74rzMaxO2eH1/UYxziA0DEeyzNDQdgcwa1G6Yla+SA= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1701928533; c=relaxed/simple; bh=QISN3Yu40WPGRlDOE89RAUtl5p/A0wNUbJUfr6WdX3M=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=Aqs/Nt5y+K0UqNsdGfndefqwTt1M/kC9vGVWO1ssy4CG2x+SKax9M10gNinvOVocmHHtNs1ue2vNONdBrp6cSBaz+j+0yMdoDU3/wbx3NMqhbDI2ONNWDAxxVC/svvALTe4AyR1Gx0czTaTNP3dLLfI5A7jIHBsJ02inJttAL9c= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247473.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3B75rTGA009003; Thu, 7 Dec 2023 05:55:31 GMT Received: from mxout22.s.uw.edu (mxout22.s.uw.edu [128.95.242.222]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3utxdbd9e1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 07 Dec 2023 05:55:30 +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 3B75tGrc017569 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 6 Dec 2023 21:55:16 -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 3B75adQM020981 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 6 Dec 2023 21:55:16 -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 21/23] libstdc++: Optimize std::is_object compilation performance Date: Wed, 6 Dec 2023 21:33:16 -0800 Message-ID: <20231207053633.1001720-22-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: WbqN9i4WMy4vH79c-4BwfYt3h1tYqk_Q X-Proofpoint-GUID: WbqN9i4WMy4vH79c-4BwfYt3h1tYqk_Q 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 phishscore=0 impostorscore=0 lowpriorityscore=0 suspectscore=0 mlxscore=0 mlxlogscore=696 spamscore=0 clxscore=1034 adultscore=0 bulkscore=0 malwarescore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2312060159 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_H4,RCVD_IN_MSPIKE_WL,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::is_object by dispatching to the new __is_object built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (is_object): Use __is_object built-in trait. (is_object_v): Likewise. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index b6d0441129b..2979d79a801 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -725,11 +725,18 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { }; /// is_object +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_object) + template + struct is_object + : public __bool_constant<__is_object(_Tp)> + { }; +#else template struct is_object : public __not_<__or_, is_reference<_Tp>, is_void<_Tp>>>::type { }; +#endif template struct is_member_pointer; @@ -3280,8 +3287,15 @@ template inline constexpr bool is_arithmetic_v = is_arithmetic<_Tp>::value; template inline constexpr bool is_fundamental_v = is_fundamental<_Tp>::value; + +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_object) +template + inline constexpr bool is_object_v = __is_object(_Tp); +#else template inline constexpr bool is_object_v = is_object<_Tp>::value; +#endif + template inline constexpr bool is_scalar_v = is_scalar<_Tp>::value; template -- 2.43.0