From patchwork Mon Feb 19 13:51:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ken Matsui X-Patchwork-Id: 203092 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:693c:2685:b0:108:e6aa:91d0 with SMTP id mn5csp1294599dyc; Mon, 19 Feb 2024 05:53:27 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCV0nHn8fr6m7r6q0AVrqxTKxxjBrvsIJye9hEKDw50HMaCVNUeGdxUx61xYZOFFZNsYqa83MACYPOKSDxRjWh1yxk+JQg== X-Google-Smtp-Source: AGHT+IHu4i9aWf2OOGPpfCEqZ0voWMzYKp+StXHKNpPLZFrImBbEV0SGQ2OAYTQt/Htw2YwUdMdf X-Received: by 2002:a05:6214:460a:b0:68f:5fe3:a90e with SMTP id oq10-20020a056214460a00b0068f5fe3a90emr7307923qvb.29.1708350807402; Mon, 19 Feb 2024 05:53:27 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1708350807; cv=pass; d=google.com; s=arc-20160816; b=OX2Ho7PEuf1QeNEIFbDwDlTmOl5hm22cprkHoZyKscDFkotpnk0VontxmG5UyaIzWh bKSSKQhL6nDXgio8qPkV94HzxY8z+OFisrrBNW6bzbPHm6HdPVJU2craYlE8X/LNhBlL flElR3bf83g3A9UMVZAyCYSzrxflVMN7gaBotcPoVGupe4eBNRJrQ1WWoMDpxk8XeJ+F dR3h6Qz5ZuaA2W+fynvvdvlbVwsxaEc0xVG6u9XardL/8jfI/3ebQ1XShQTgynjKb5G1 0zB2R3PBlHj4CQsxGs8oZua8IiZfByJenec/nv3ydxm2X4y58UCFUZhtDOHHC6gSFl0l YdUg== 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=QYugRasLyMLk3LT6NMwu3UR8R5wXBiWa7MZ/JvH9Kyc=; fh=kSSy/oyUXqQD15FLeKdymIgDBFPFITPA1Gj52CNOxRQ=; b=P+/+aGHnNKVwAfICsJTREi0/Ot4gqSK4acGl8DVCw2Czbh8kDNYawnK8Zk6oBSHbGO O6M1MY7f+IbJH7nZlliphLyu5v5Sf3svGti1MAIPBWKoHJKyqN3w/gZNgzts2UQKxoEP nW+v9e77S0qmAZq8iW04oc4dXfP/bnznGxt8R5TGG1wii1udDpyId4cYE6wyNeadG04W 0C2n8UjiIHheC4KkfNiq+mhAAP3XYJEqcMlrCgh0TWLmjCWgx8N22JAcllcfjZ7IZ/xi XMs6bnAOf8ddQMplxnrDUbYWeEZRjloTnO6qiQq+t4e3utZDyO9VMOomZMDGvTY0LKzy Zoow==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=weKt6WUs; arc=pass (i=1); spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 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. [8.43.85.97]) by mx.google.com with ESMTPS id t4-20020ad45bc4000000b0068f6f85b1e2si2189253qvt.543.2024.02.19.05.53.27 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Feb 2024 05:53:27 -0800 (PST) Received-SPF: pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) client-ip=8.43.85.97; Authentication-Results: mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=weKt6WUs; arc=pass (i=1); spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 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 0F6DD3864809 for ; Mon, 19 Feb 2024 13:53:27 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0F6DD3864809 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1708350807; bh=QYugRasLyMLk3LT6NMwu3UR8R5wXBiWa7MZ/JvH9Kyc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=weKt6WUsmzCAT+VciLAbPD0LMfbt5MXk4jrQp4S794V5+09vDhfnzfArTu96VJIc3 1wItTZsWzJePhFb3IL6M1V09DOdCHvdhnYd9A/z/nuC6tm5lNxl0K47D5CAat7zs9i V4NMjdCaycxUHZpLFlEIOhw78iZtQh0LCfFJhqiA= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mx0b-00641c01.pphosted.com (mx0b-00641c01.pphosted.com [205.220.177.146]) by sourceware.org (Postfix) with ESMTPS id 18E51384F00A; Mon, 19 Feb 2024 13:51:39 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 18E51384F00A 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 18E51384F00A 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=1708350701; cv=none; b=ex3eNJX4chvjIsbfgNZNrNsjYC2djflT85NE3gnnN3lU2c1enryaDxV25fE4uAI/WFRBsVQZ/IToY7gsk9Bl+UPjAKnqmLAq8PTvinyIrDZh4Wc/RPWc7ZPSAlW6EY+NXTFhThK+nHW0WN3dR9cCB+lVDyjqejz/CYnlQCIxS9M= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1708350701; c=relaxed/simple; bh=fgJcJYLzf/As3rlsk6dSpoHw89Qd6uC0qFj/SXaILuo=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=JFVF3/jaV/jVRkYgFHxSixcz4tuhYVLk2dS1xT/EsxHu/8+vVU6Cq1fsjA2pyFN6Fp/+AqR9PgM2N5V7YB08RChP3krA7ww+3rYaRbH7mW5mn8PRNEyWsw8YHWk7doSV6D149AWRx/N7RB9ZBFYYTMowz4p+alQZQriLFAzK5I4= 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 41JDmnkv011923; Mon, 19 Feb 2024 13:51:38 GMT Received: from mxout24.cac.washington.edu (mxout24.cac.washington.edu [140.142.234.158]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3wb6dpexhp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 19 Feb 2024 13:51:38 +0000 Received: from smtp.washington.edu (smtp.washington.edu [140.142.234.157]) by mxout24.cac.washington.edu (8.14.4+UW20.07/8.14.4+UW24.02) with ESMTP id 41JDpapg001136 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 19 Feb 2024 05:51:36 -0800 X-Auth-Received: from kmatsui-ThinkPad-X1-Carbon-Gen-9.dhcp4.washington.edu ([10.154.74.143]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW24.02) with ESMTPSA id 41JDpZRQ001026 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 19 Feb 2024 05:51:35 -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 v7 08/22] libstdc++: Optimize std::is_unbounded_array compilation performance Date: Mon, 19 Feb 2024 05:51:15 -0800 Message-ID: <20240219135129.3635809-8-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240219135129.3635809-1-kmatsui@gcc.gnu.org> References: <20240106050754.3054782-1-kmatsui@gcc.gnu.org> <20240219135129.3635809-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: Vaxmt2aT7zEtKKL-9ZkCe-otP05S0wQq X-Proofpoint-GUID: Vaxmt2aT7zEtKKL-9ZkCe-otP05S0wQq X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-19_09,2024-02-19_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1034 adultscore=0 spamscore=0 suspectscore=0 mlxlogscore=405 bulkscore=0 impostorscore=0 malwarescore=0 priorityscore=1501 lowpriorityscore=0 phishscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2402190103 X-Spam-Status: No, score=-13.3 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 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: 1786112256931161952 X-GMAIL-MSGID: 1791335655848832737 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 6407738a726..c4585a23df9 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -3706,11 +3706,16 @@ 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