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 DB7333858004; Mon, 16 Oct 2023 00:14:31 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org DB7333858004 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 DB7333858004 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=1697415273; cv=none; b=yE6D2rzLqpOmdPuLHcCaryBS3S7bdNw2/ZdxLTO6RCQhOmiCMVYK7LPLvKIsTuOjNW+isS9zmKRveymlHIwsfwdgij8PDioV2q/f8Yf0qkvvx5wWT+a3bZDEggTyoSp9f9b5YmqLyT8qEahOSMxiyT6UjrO3ojzVve3rdeWV2Bc= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1697415273; c=relaxed/simple; bh=QuMkc1ehlJ5Wg8V4Rsxxo7gXiPPchTtHkDih2h1/T8E=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=Y0uwBfvW/z26C92NHdx4m2Uhw5m7SyU07wXQR1Wa/oyvuhGCtPHpGkqeYzwuZLOmotURSvw7yqJnwr6MRJHtcLevFm5IkLlDreKYWj6xD2zCqI70Xyxw1oOP0fhe6TTK0Akmj2K+g8NIjvEpV152TLQcyhj+vJzbpYEXf1D1cIo= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247471.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 39G0EOa2020876; Mon, 16 Oct 2023 00:14:31 GMT Received: from mxout26.s.uw.edu (mxout26.s.uw.edu [140.142.234.176]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3tr4dk4byf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 16 Oct 2023 00:14:30 +0000 Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.132]) by mxout26.s.uw.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 39G0EFH4001214 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 15 Oct 2023 17:14:15 -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 39G0CSs9032329 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 15 Oct 2023 17:14:15 -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 v20 19/40] libstdc++: Optimize is_member_function_pointer trait performance Date: Sun, 15 Oct 2023 17:10:03 -0700 Message-ID: <20231016001227.2717180-20-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231016001227.2717180-1-kmatsui@gcc.gnu.org> References: <20231013223957.1634024-1-kmatsui@gcc.gnu.org> <20231016001227.2717180-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: MFnh4bqiP1-t7QA4gDCCCx_esGii3074 X-Proofpoint-GUID: MFnh4bqiP1-t7QA4gDCCCx_esGii3074 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=2023-10-15_09,2023-10-12_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 mlxscore=0 bulkscore=0 priorityscore=1501 spamscore=0 lowpriorityscore=0 mlxlogscore=665 adultscore=0 malwarescore=0 clxscore=1034 suspectscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2309180000 definitions=main-2310160000 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,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 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 -- 2.42.0