From patchwork Tue Oct 24 02:00:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ken Matsui X-Patchwork-Id: 157218 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:ce89:0:b0:403:3b70:6f57 with SMTP id p9csp1670968vqx; Mon, 23 Oct 2023 19:15:30 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHT62ByPcBk6GKUywQhCzTwkFtZEoaybgM+IRxqtJmvtIkuS3O48TKxPrpahGU11wxSDpH/ X-Received: by 2002:a05:6214:c25:b0:66d:b20:a914 with SMTP id a5-20020a0562140c2500b0066d0b20a914mr14070681qvd.2.1698113730761; Mon, 23 Oct 2023 19:15:30 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1698113730; cv=pass; d=google.com; s=arc-20160816; b=AcCKKKZcA9gYRLOreF2WWwPCwE9dJWfD00I7+KQR4XvmN1aMBzyr0q7+BQG8l7mZhq 3wPKKlU9Re/tcCKTTU9MgWKYIr05p0cfE3X0MBdg0AvOKGV5PcNSddN8UA4P6cS5KbMY fYSGUBUrp/7emmtvebt3JVP5/TRQefn2Ad6sIv+sjRHkfoAGHkpOS9kkwO8G+tFNFUcS oww0iMMRf0MWyT8XbxU3IgLup0Po+rWjDelEgWsWsiMKlX00Pk9x7zdkwm32ydKTSR9k rHdKbY7XK1vlTjApVJRd3hivQTMnQnZItuTso16wIYQ0eBLLkaATgROHnI6HaXm8gX+R Dxug== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:arc-filter:dmarc-filter:delivered-to:dkim-signature :dkim-filter; bh=i+CeMZvKdVrZPZCKw1mDZWbrtrX422hmRGxxN6gZvPc=; fh=kSSy/oyUXqQD15FLeKdymIgDBFPFITPA1Gj52CNOxRQ=; b=NguLAg2SXZKDuyzyFAGXZ7GvBIY505Ke7qqu25eDi4FMwAqMct7QZ9uqHMtKfV+XSA MJxPpQyFujzgJSB2B3fhkdJyfxgW3TrVOEiIhVuwVPhuh6ACkgyBKF1sijWUirReK5vZ 40Jo8xVxIII/DRbSmrHlnFQ64Zxd7UmIk3veGZ3TFM/TszlQPHgWv+CGZbTbqgqB3Bm7 EMhz/ID7JQz4pJVS4EcoXCMPNWKj3LntvnJGN/Ay6Gp1Q8dKukBrzQt787d6IuIRHbKJ XtLUPGE+b5PfclQSZ6IDgm+QUW7M7gsPPYv30nK0mOiBYfiDNuN+RaeksHbV2p6amJ8i 9DYw== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b="T/bPmTXH"; arc=pass (i=1); spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c 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 (server2.sourceware.org. [2620:52:3:1:0:246e:9693:128c]) by mx.google.com with ESMTPS id da18-20020a05621408d200b0065b2d89bd70si6352787qvb.522.2023.10.23.19.15.30 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Oct 2023 19:15:30 -0700 (PDT) Received-SPF: pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) client-ip=2620:52:3:1:0:246e:9693:128c; Authentication-Results: mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b="T/bPmTXH"; arc=pass (i=1); spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c 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 63A4C385353E for ; Tue, 24 Oct 2023 02:15:30 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 63A4C385353E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1698113730; bh=i+CeMZvKdVrZPZCKw1mDZWbrtrX422hmRGxxN6gZvPc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=T/bPmTXHCtZjrC8/2By8KSD9EQU6wJhTDfUVU/vJPC1nODb5rSfpJAWnt2j78zp6q 12ufMkvbeRYCuFo3uk0QoOOAT9czCsxtBDvO13cu+pj8lfIR3rf1wbTJ6zLLgohtCN W7aSGwQIgNdbFCzUVh6AiuB0Cy7arE2gZsSOhGj0= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mx0a-00641c01.pphosted.com (mx0a-00641c01.pphosted.com [205.220.165.146]) by sourceware.org (Postfix) with ESMTPS id 22F81385703F; Tue, 24 Oct 2023 02:05:06 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 22F81385703F 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 22F81385703F 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=1698113107; cv=none; b=RPoU9f7UGs3f9xYRA3YQQM+PRQKSt0HQ/ZbREMDDRicYoJuDmGez2iu8JYnvmVOWNvFvtC+69pWiDnr8c94INHth26cCRpN48EFBl5w0ZOnSjaRWnC8iYNJ7pt5PoPikQB74OMguJQcqUXfWeSFFZ1VA3DQxYVOQk75Fwv3xKdQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1698113107; c=relaxed/simple; bh=WKdxGnzG6MO3oX+/vm0sJZxnVVOVsCt9R9Mateiqz5Q=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=qHrLHBWQJdF9q2LGVQEAGscZD67sEOicQvbcyhgM8wWM25St1QR730hG49V2yoErWXLIDsQFP/DQcTOIEBUEPZM3g0YZ2MIVfy5dPBlwZewTDSjvhW0+AujgQ2UKulajqZi0M/IykgoNBosqByfCXkdv+xT/3tIMsGRzXNl8N/A= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247475.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 39O22ETx023295; Tue, 24 Oct 2023 02:05:05 GMT Received: from mxout21.s.uw.edu (mxout21.s.uw.edu [140.142.32.139]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3twu6mnmkn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 24 Oct 2023 02:05:05 +0000 Received: from smtp.washington.edu (smtp.washington.edu [140.142.234.157]) by mxout21.s.uw.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 39O24cdG023567 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 23 Oct 2023 19:04:38 -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 39O24Tm9031305 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 23 Oct 2023 19:04:38 -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 11/33] libstdc++: Optimize std::is_unbounded_array compilation performance Date: Mon, 23 Oct 2023 19:00:54 -0700 Message-ID: <20231024020424.699427-12-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 X-Proofpoint-GUID: fCYj6IGk6vU-vIgIKHnl3nFVJFXA229b X-Proofpoint-ORIG-GUID: fCYj6IGk6vU-vIgIKHnl3nFVJFXA229b 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 bulkscore=0 suspectscore=0 mlxlogscore=557 mlxscore=0 clxscore=1034 spamscore=0 impostorscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 adultscore=0 malwarescore=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 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: , Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1780601303492545148 X-GMAIL-MSGID: 1780601303492545148 This patch optimizes the compilation performance of std::is_unbounded_array by dispatching to the new __is_unbounded_array built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (is_unbounded_array_v): Use __is_unbounded_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 4e8165e5af5..cb3d9e238fa 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -3541,11 +3541,16 @@ template /// True for a type that is an array of unknown bound. /// @ingroup variable_templates /// @since C++20 +# if _GLIBCXX_USE_BUILTIN_TRAIT(__is_unbounded_array) + template + inline constexpr bool is_unbounded_array_v = __is_unbounded_array(_Tp); +# else template inline constexpr bool is_unbounded_array_v = false; template inline constexpr bool is_unbounded_array_v<_Tp[]> = true; +# endif /// True for a type that is an array of known bound. /// @since C++20