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 7C6A5385840E; Wed, 28 Feb 2024 19:32:13 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 7C6A5385840E 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 7C6A5385840E 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=1709148739; cv=none; b=Eiw2xfRZPfo5V4C4xA6VP04IGvCnp8P7/+6SNM6ZUXcSXBQQOu9Iub+OXE+f/aldnvxrITIV+eJ3EkJutgAlbl8zQ2c9N8LDk9nrThMK6E1yOaUziL0DwRaVJ2JMhkE5USWrvDEkAcVaK9Q3vzBnq/T2S7SqyYjY4egr4D2xZdw= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1709148739; c=relaxed/simple; bh=C7tTcuEH3hAPeCXwLyEk4oZBzyNN8xqMGlQcsxtt6hQ=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=b7L2ZPJvFnpXVqFEQVOWcjDTIf7VnjlGQ7+CKaNpwmYLpkdgBWrJSPLJSi7A/Vezw0KVCqmf0g7AkGV4X6LP5DPNZwZS5EF42UESGn9168fp7pdz2H7bTTdx1xK0F2BEVcgTbiLb2ZIphYkNDPeMThcasNEqhPanv7II8aJWLKM= ARC-Authentication-Results: i=1; server2.sourceware.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 41SJS7R5020946; Wed, 28 Feb 2024 19:32:13 GMT Received: from mxout25.s.uw.edu (mxout25.s.uw.edu [140.142.234.175]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3wja2y8p52-3 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 28 Feb 2024 19:32:12 +0000 Received: from smtp.washington.edu (smtp.washington.edu [140.142.234.157]) by mxout25.s.uw.edu (8.14.4+UW20.07/8.14.4+UW24.02) with ESMTP id 41SJSpOS020754 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 28 Feb 2024 11:28:51 -0800 X-Auth-Received: from kmatsui-ThinkPad-X1-Carbon-Gen-9.dhcp4.washington.edu ([10.154.74.128]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW24.02) with ESMTPSA id 41SJSoTU015429 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 28 Feb 2024 11:28:51 -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 v14 12/26] libstdc++: Optimize std::remove_extent compilation performance Date: Wed, 28 Feb 2024 11:26:17 -0800 Message-ID: <20240228192843.188979-13-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240228192843.188979-1-kmatsui@gcc.gnu.org> References: <20240221093616.4001742-1-kmatsui@gcc.gnu.org> <20240228192843.188979-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: v605bkapRHUKfIob-uirlpUrs_mSyIF1 X-Proofpoint-GUID: v605bkapRHUKfIob-uirlpUrs_mSyIF1 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=2024-02-28_08,2024-02-27_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 spamscore=0 clxscore=1034 priorityscore=1501 impostorscore=0 malwarescore=0 mlxlogscore=655 suspectscore=0 mlxscore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2402280153 X-Spam-Status: No, score=-13.4 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 compilation performance of std::remove_extent by dispatching to the new __remove_extent built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (remove_extent): Use __remove_extent built-in trait. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 6346d1daee2..73ddce351fd 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -2092,6 +2092,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION // Array modifications. /// remove_extent +#if _GLIBCXX_USE_BUILTIN_TRAIT(__remove_extent) + template + struct remove_extent + { using type = __remove_extent(_Tp); }; +#else template struct remove_extent { using type = _Tp; }; @@ -2103,6 +2108,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template struct remove_extent<_Tp[]> { using type = _Tp; }; +#endif /// remove_all_extents template -- 2.44.0