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 59D4F3857831; Thu, 7 Dec 2023 05:44:03 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 59D4F3857831 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 59D4F3857831 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=205.220.177.146 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1701927844; cv=none; b=In0tpXPUqyvNJZlPnCo3umbJ0ZxY4SPIJZIBNHytLU/wpFcFNtrrZvhKVjJg7bq+EIyk/aYrrCyq7nKlBvAMzz5Lw32POjPOyxyNg8h6jGzffD4tcOoXrTcvB+mThlGM3b3C6NzGGG/HbB8YiGbx+e51oFbW2IuBfiX2E24DdE4= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1701927844; c=relaxed/simple; bh=3CfPjTAKxyc9dpgq0Q+FdtXBqjwVDCr3YZmWLJWtrnw=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=ocp4MA5+gTpkgZ8LIqHQu9m62NIwC0Er9IoL5O8OMIJIwGPIr+mhWXFelEBZBZzGPBCGUAXm4niXWoMokuaa/WQ80zO7anhNCMMw7efhkJ6FSIR0CryjIhs8NEm1U+fh1amX9ijyQaxYuq4026U890EKNNPj4hAa72K6iR8SwKA= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247479.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3B75XtcX015887; Thu, 7 Dec 2023 05:44:03 GMT Received: from mxout23.cac.washington.edu (mxout23.cac.washington.edu [140.142.32.140]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3uu3u49ne6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 07 Dec 2023 05:44:02 +0000 Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.54]) by mxout23.cac.washington.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 3B75hd5k032160 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 6 Dec 2023 21:43:39 -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 3B75adQ8020981 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 6 Dec 2023 21:43:39 -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 07/23] libstdc++: Optimize std::is_bounded_array compilation performance Date: Wed, 6 Dec 2023 21:33:02 -0800 Message-ID: <20231207053633.1001720-8-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: D2akZt-vjSxl7YflW_CwSR0Kjcq-YPFm X-Proofpoint-GUID: D2akZt-vjSxl7YflW_CwSR0Kjcq-YPFm 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=2023-12-07_03,2023-12-06_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 phishscore=0 mlxscore=0 adultscore=0 suspectscore=0 malwarescore=0 mlxlogscore=399 clxscore=1034 impostorscore=0 priorityscore=1501 spamscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2312070043 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_H2,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_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 64f9d67fe29..2a1a0aa80ff 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -3506,11 +3506,16 @@ 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 -- 2.43.0