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[8.43.85.97]) by mx.google.com with ESMTPS id dk22-20020a170906f0d600b0099e028b0201si2641875ejb.962.2023.09.14.20.28.00 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Sep 2023 20:28:01 -0700 (PDT) Received-SPF: pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) client-ip=8.43.85.97; Authentication-Results: mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=GugS+5ls; spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id C06E93850867 for ; Fri, 15 Sep 2023 02:50:00 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C06E93850867 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1694746200; bh=ixwYONvJgNS3nm1g76jbi6vfkThyxr3CvvJiXmiywEk=; h=To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=GugS+5lsLx2IQmdVi+fwFwp6re8R74rp6Xv0HL9TzceQo0r3NQhDr0J0mQbXTJZS7 RtavEa64w0wDGbasLNNG0X0tpJ7dOq4AhpSRk6lm9jqD78YFKGyCkjGM/V0DLu9oGo l+thWP4nVIcRqechzg2v2Xwgkcu56WMAhg056Ozo= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mx0b-00641c01.pphosted.com (mx0b-00641c01.pphosted.com [205.220.177.146]) by sourceware.org (Postfix) with ESMTPS id 5788D382DC50; Fri, 15 Sep 2023 02:36:45 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 5788D382DC50 Received: from pps.filterd (m0247477.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 38F2acKq014479; Fri, 15 Sep 2023 02:36:45 GMT Received: from mxout24.cac.washington.edu (mxout24.cac.washington.edu [140.142.234.158]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3t48xyja7n-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 15 Sep 2023 02:36:44 +0000 Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.54]) by mxout24.cac.washington.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 38F2ahns009808 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 14 Sep 2023 19:36:43 -0700 X-Auth-Received: from localhost.localdomain ([10.154.75.179]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW19.10) with ESMTPSA id 38F2agoB001192 (version=TLSv1.2 cipher=DHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Thu, 14 Sep 2023 19:36:42 -0700 X-UW-Orig-Sender: kmatsui@smtp.washington.edu To: gcc-patches@gcc.gnu.org Cc: libstdc++@gcc.gnu.org, Ken Matsui Subject: [PATCH v13 19/40] libstdc++: Optimize is_member_function_pointer trait performance Date: Thu, 14 Sep 2023 19:34:59 -0700 Message-ID: <20230915023640.75216-20-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230915023640.75216-1-kmatsui@gcc.gnu.org> References: <20230915022305.74083-1-kmatsui@gcc.gnu.org> <20230915023640.75216-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 X-Proofpoint-GUID: YTmnZgpExIn6L1ghLkZunnfWtBBSsgdV X-Proofpoint-ORIG-GUID: YTmnZgpExIn6L1ghLkZunnfWtBBSsgdV X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-09-15_01,2023-09-14_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxlogscore=542 lowpriorityscore=0 priorityscore=1501 bulkscore=0 clxscore=1034 spamscore=0 malwarescore=0 impostorscore=0 mlxscore=0 adultscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2309150021 X-Spam-Status: No, score=-13.0 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 X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Ken Matsui via Gcc-patches From: Ken Matsui Reply-To: Ken Matsui Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1776995423218726551 X-GMAIL-MSGID: 1777072583523226258 This patch optimizes the performance of the is_member_function_pointer trait by dispatching to the new __is_member_function_pointer built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (is_member_function_pointer): Use __is_member_function_pointer built-in trait. (is_member_function_pointer_v): Likewise. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index d7f89cf7c06..e1b10240dc2 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -588,6 +588,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION : public __is_member_object_pointer_helper<__remove_cv_t<_Tp>>::type { }; +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_member_function_pointer) + /// is_member_function_pointer + template + struct is_member_function_pointer + : public __bool_constant<__is_member_function_pointer(_Tp)> + { }; +#else template struct __is_member_function_pointer_helper : public false_type { }; @@ -601,6 +608,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct is_member_function_pointer : public __is_member_function_pointer_helper<__remove_cv_t<_Tp>>::type { }; +#endif /// is_enum template @@ -3222,9 +3230,17 @@ template template inline constexpr bool is_member_object_pointer_v = is_member_object_pointer<_Tp>::value; + +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_member_function_pointer) +template + inline constexpr bool is_member_function_pointer_v = + __is_member_function_pointer(_Tp); +#else template inline constexpr bool is_member_function_pointer_v = is_member_function_pointer<_Tp>::value; +#endif + template inline constexpr bool is_enum_v = __is_enum(_Tp); template