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 58F19385782B; Sat, 15 Jul 2023 04:56:35 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 58F19385782B 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 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 36F4oufD029080; Sat, 15 Jul 2023 04:56:35 GMT Received: from mxout24.cac.washington.edu (mxout24.cac.washington.edu [140.142.234.158]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3ruh5m0wne-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 15 Jul 2023 04:56:34 +0000 Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.132]) by mxout24.cac.washington.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 36F4uRni026501 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 14 Jul 2023 21:56:27 -0700 X-Auth-Received: from localhost.localdomain ([10.154.74.234]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW19.10) with ESMTPSA id 36F4tPcG002254 (version=TLSv1.2 cipher=DHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Fri, 14 Jul 2023 21:56:27 -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 v2 2/3] libstdc++: Optimize is_arithmetic performance by __is_arithmetic built-in Date: Fri, 14 Jul 2023 21:55:18 -0700 Message-ID: <20230715045519.50684-2-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230715045519.50684-1-kmatsui@gcc.gnu.org> References: <20230709125715.26884-1-kmatsui@gcc.gnu.org> <20230715045519.50684-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: afQBKAdFDcxWiA4a_ZgnqXt5MDXAcmb- X-Proofpoint-ORIG-GUID: afQBKAdFDcxWiA4a_ZgnqXt5MDXAcmb- X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-15_02,2023-07-13_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 clxscore=1034 suspectscore=0 spamscore=0 adultscore=0 phishscore=0 mlxscore=0 lowpriorityscore=0 mlxlogscore=494 priorityscore=1501 impostorscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307150043 X-Spam-Status: No, score=-13.1 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,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 performance of the is_arithmetic trait by dispatching to the new __is_arithmetic built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (is_arithmetic): Use __is_arithmetic built-in trait. (is_arithmetic_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 0e7a9c9c7f3..7ebbe04c77b 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -655,10 +655,17 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { }; /// is_arithmetic +#if __has_builtin(__is_arithmetic) + template + struct is_arithmetic + : public __bool_constant<__is_arithmetic(_Tp)> + { }; +#else template struct is_arithmetic : public __or_, is_floating_point<_Tp>>::type { }; +#endif /// is_fundamental template @@ -3198,8 +3205,15 @@ template inline constexpr bool is_reference_v<_Tp&> = true; template inline constexpr bool is_reference_v<_Tp&&> = true; + +#if __has_builtin(__is_arithmetic) +template + inline constexpr bool is_arithmetic_v = __is_arithmetic(_Tp); +#else template inline constexpr bool is_arithmetic_v = is_arithmetic<_Tp>::value; +#endif + template inline constexpr bool is_fundamental_v = is_fundamental<_Tp>::value; template -- 2.41.0