From patchwork Mon Feb 19 13:51:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ken Matsui X-Patchwork-Id: 203098 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:693c:2685:b0:108:e6aa:91d0 with SMTP id mn5csp1295238dyc; Mon, 19 Feb 2024 05:54:46 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCX0tz/LoOqelAN7fqDC9B+C0WOv6u4vQTCPKrkhuMm9U+pbCi6nPkNYjEcf7l13oj1rXn81rgMGr8vqfBrY3swrqrg/wA== X-Google-Smtp-Source: AGHT+IH1ySEVnug/QVsBD5IJFaTsRBvwnFRn7mDV5zAMJQu4M+JUa5NWjcWjqcNXRKygfbzHiJ5Y X-Received: by 2002:a05:622a:390:b0:42d:fe52:8bb3 with SMTP id j16-20020a05622a039000b0042dfe528bb3mr7065294qtx.41.1708350886525; Mon, 19 Feb 2024 05:54:46 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1708350886; cv=pass; d=google.com; s=arc-20160816; b=s1yON6NWMZMutp6NHK5VO7FuxKB3+mEzfTBjqZDlWCymfrWTo+wQUPpB7eb0nJQ7cn ELQYQtZ1PLVoK/9IVH4hN1ApxHKFuEAZN+hxzct1Lk0CaEDjH8191Ix8oucoqpJyqNnv gEfi2i8lGeOGH71MHNJU0SA9yzKYObqQSvxmnblUpdmUxbX1eP1HAMVjEFmiXRVKujqM B3MrKQbUorSSbD9DGy478HcIkF6pjVC6sLkP6qkFrAkxMTjPni6sX1HDU7Owi4EYTW1N oaCSO0ZSEiNZ0oxC1UkQ+CnPOIMafhRaS0MFpOm09FaqVGa75gCoh7FZq5NGAB9640/Z bfEA== 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=er6jZZ5SFIqNgiOlZADLtwujTFdoRxcRJew4SiO3pXE=; fh=kSSy/oyUXqQD15FLeKdymIgDBFPFITPA1Gj52CNOxRQ=; b=D66Lhughq3FdPoAZSpftLKX8sDzH/LDFzbs6RpHB6FMuUc92gAKxlCZD8Xs1W4cZ/l hC4ZTxVbo0Cb+fTOH+M0N+Sj1b8AMKw3KkxeJgEI+XotC7JgVhrisITdqkc++l3HN21P cPb5pVyULRSlVC/MNtPJube7WHXcZNHJfJrrZlRKsQwpSofC++EYUYYXzBJ3GXIDQ4fi GTAPAfQS8xJ1NS7CDkP7dpR1MQaNfl5qqveu/4nDut0lvzOO7xiRNnO0pIZY3FTxcFAj SR9NxJle2/WOYCXK+kkMCO5CmAEavtvklrrPfXQO01ioatLWvudw6jcpT1p1szr1AkQq OcpA==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=e72nIf5S; 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 f13-20020ac8498d000000b0042c4dc12656si5771471qtq.781.2024.02.19.05.54.46 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Feb 2024 05:54:46 -0800 (PST) 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=e72nIf5S; 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 21E543864C64 for ; Mon, 19 Feb 2024 13:54:46 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 21E543864C64 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1708350886; bh=er6jZZ5SFIqNgiOlZADLtwujTFdoRxcRJew4SiO3pXE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=e72nIf5S0OWRBdbz4Sq798UXp53e1XYD32H+da5Ofl5m97taA9JUVkjMD23mHnSPM WCs9lh7v3voFqCFtol4/Xr0nXEIgNUUAkl0xs4y90yyKXG2mo5ehlHgeOHGpyt43TP lO9btIdIJYOLMoCMrVcf9bF6xtB5/Tmou6fEMeXI= 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 05DCA384CBA7; Mon, 19 Feb 2024 13:51:42 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 05DCA384CBA7 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 05DCA384CBA7 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=1708350705; cv=none; b=WpzdYEVq7hsRZ+Txsftj7xReniy8z2XEzB3D1z1QxYr0vdwyUE5RXOgRj0Z8S+Ud44YuxckiQtw/iG1l/7FNzULiBIDnwLKCan2pukpChDLO8aFPx/eRrUxrr8ktrI1jt4rUqCpIDaG+gl+g8qLuGRCjQcgxRS7b/zdUpERhpzg= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1708350705; c=relaxed/simple; bh=noosxmzgtZJ9ettk3mZRSTRchM07Y+bDGUJwAhFMoiE=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=adrGbK2nFR+WS3GKL/xWoFolv56pBo3YF+2ZYp7mRrFAJp5dSRLxoh1tONBENqlOlq42G8UbaoHk03RFV4Y78wSFfkz7Lfr8h78HjJGCb7gk3HhKNG/hosdCjpxRBbOhOyOgDPWfSqqX1m8ixuFMO5ZNycnU6rH0Vd2R2YWVT14= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247470.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 41JDWIBu013161; Mon, 19 Feb 2024 13:51:42 GMT Received: from mxout21.s.uw.edu (mxout21.s.uw.edu [140.142.32.139]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3wc503gqrq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 19 Feb 2024 13:51:42 +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+UW24.02) with ESMTP id 41JDpaug031679 (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 41JDpZRW001026 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 19 Feb 2024 05:51:36 -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 14/22] libstdc++: Optimize std::remove_all_extents compilation performance Date: Mon, 19 Feb 2024 05:51:21 -0800 Message-ID: <20240219135129.3635809-14-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-GUID: epZNcRFgRrv4_0R5UjuIXexJcy0FpAAV X-Proofpoint-ORIG-GUID: epZNcRFgRrv4_0R5UjuIXexJcy0FpAAV 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 bulkscore=0 clxscore=1034 mlxlogscore=819 priorityscore=1501 impostorscore=0 malwarescore=0 adultscore=0 mlxscore=0 suspectscore=0 spamscore=0 phishscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2402190103 X-Spam-Status: No, score=-13.0 required=5.0 tests=BAYES_00, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, 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: 1791335739233839060 X-GMAIL-MSGID: 1791335739233839060 This patch optimizes the compilation performance of std::remove_all_extents by dispatching to the new __remove_all_extents built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (remove_all_extents): Use __remove_all_extents 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 73ddce351fd..34475e6279a 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -2111,6 +2111,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION #endif /// remove_all_extents +#if _GLIBCXX_USE_BUILTIN_TRAIT(__remove_all_extents) + template + struct remove_all_extents + { using type = __remove_all_extents(_Tp); }; +#else template struct remove_all_extents { using type = _Tp; }; @@ -2122,6 +2127,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template struct remove_all_extents<_Tp[]> { using type = typename remove_all_extents<_Tp>::type; }; +#endif #if __cplusplus > 201103L /// Alias template for remove_extent