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 C19183857706; Tue, 24 Oct 2023 02:05:11 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org C19183857706 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 C19183857706 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=1698113113; cv=none; b=iARjCxgj3ZIN+iRV2PsxWzXslDFXQdwo6tyMulUVLGnNAp1FLd0y/TLppMATIeeZtGdLm2ChVyuZ7JlOmIt5W+PhvlSnbLzuvp+g1V4SNmpwi0Qd+qOcC/iqAD+CiMqdqitJo/4NcpIzcilu44jgi46lxbnLocs49s+GdwRH9dY= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1698113113; c=relaxed/simple; bh=US+muBU+It75sqsxvTOngZTSmOgbT9oCoUfHbfuOKdY=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=cSfJpbyqv2l7+9C+ieSWRsZwdEoKvQkb2cmUWm0uZ7iaN+RlmZZgfrcoWFFn0c9fBUy8plJjWfc4p64WDISnSWBkhxe/pI6fh3n4z0R4BKOyAUbhSTWnR7vVRzByJESebzCiims2qu/iENTu0o/14w1SlCPx8bchL9Uee4Xwde8= 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 39O23Z6c023197; Tue, 24 Oct 2023 02:05:10 GMT Received: from mxout23.cac.washington.edu (mxout23.cac.washington.edu [140.142.32.140]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3tx1eesc4n-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 24 Oct 2023 02:05:10 +0000 Received: from smtp.washington.edu (smtp.washington.edu [140.142.234.157]) by mxout23.cac.washington.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 39O24dmJ025731 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 23 Oct 2023 19:04:39 -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 39O24TmB031305 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 23 Oct 2023 19:04:39 -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 v25 13/33] libstdc++: Optimize std::is_bounded_array compilation performance Date: Mon, 23 Oct 2023 19:00:56 -0700 Message-ID: <20231024020424.699427-14-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231024020424.699427-1-kmatsui@gcc.gnu.org> References: <20231020162115.2307797-1-kmatsui@gcc.gnu.org> <20231024020424.699427-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: 0Zh0Z-SNGktWRjaRWGF9BOqLSacqSdp2 X-Proofpoint-GUID: 0Zh0Z-SNGktWRjaRWGF9BOqLSacqSdp2 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=2023-10-24_01,2023-10-19_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 malwarescore=0 phishscore=0 lowpriorityscore=0 impostorscore=0 priorityscore=1501 mlxlogscore=429 clxscore=1034 spamscore=0 bulkscore=0 suspectscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2310170001 definitions=main-2310240017 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,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 compilation performance of std::is_bounded_array by dispatching to the new __is_bounded_array built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (is_bounded_array_v): Use __is_bounded_array built-in trait. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index cb3d9e238fa..d306073a797 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -3532,11 +3532,16 @@ template /// True for a type that is an array of known bound. /// @ingroup variable_templates /// @since C++20 +# if _GLIBCXX_USE_BUILTIN_TRAIT(__is_bounded_array) + template + inline constexpr bool is_bounded_array_v = __is_bounded_array(_Tp); +# else template inline constexpr bool is_bounded_array_v = false; template inline constexpr bool is_bounded_array_v<_Tp[_Size]> = true; +# endif /// True for a type that is an array of unknown bound. /// @ingroup variable_templates -- 2.42.0