From patchwork Fri Oct 20 13:53:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ken Matsui X-Patchwork-Id: 1852597 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.a=rsa-sha256 header.s=default header.b=gHEy8uf/; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=2620:52:3:1:0:246e:9693:128c; helo=server2.sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=patchwork.ozlabs.org) Received: from server2.sourceware.org (server2.sourceware.org [IPv6:2620:52:3:1:0:246e:9693:128c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SBmtk4ZCdz23jM for ; Sat, 21 Oct 2023 01:19:42 +1100 (AEDT) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 25C83385DC04 for ; Fri, 20 Oct 2023 14:19:17 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 25C83385DC04 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1697811557; bh=wIJBJpTeWfekh0iF8pcpeXWFZVmVeNW9Z8LCdtvDiE8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=gHEy8uf/6FM21+wvs9qmUwsqcCNbkxjAfz0UZt8yu3h0n7rEiZho8B+cHJpicmXY5 x0S2cffKveUH/XyM8EiTa8S/bjXU9JAW5VgWj7H0c55wpXzcUrG/5dCwJShkORPD05 tgpcd25tS+jLoWK/QUSETL+boDiK5/LIG2biIvQ0= 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 6618E3857344; Fri, 20 Oct 2023 14:12:06 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 6618E3857344 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 6618E3857344 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=1697811132; cv=none; b=sxVbKunFUCwwL3jIXyhCOrCMkqx09+WRicbTTKbf3pgyBepTBb5OmyzJRqrpi4uYmn7sgogc7Bf4vC+2aK5d0x9vAeqT0W20tseBons1p9ZDKgyuJavYN5dXTiFNDdoxiolcU6Jz5qaBvNZl/1EeJcwJMhKX9U3+gV5gVpbsLQw= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1697811132; c=relaxed/simple; bh=8qxALrU8IQ9Py+th3NMo4Am++sznQbILepl/liOJcmA=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=uN6F54JV2VE3m8qe33EJ781V1jdeDSDcWrgVP0lWPhK40l4yXlO3+w3Py004iatpTnl3FESD2lg74gt0eTSgT+rU0NXqGUxxpv1gj1yQ7GDCMpCDtGq+w3kcoVHPCzJaxHHHIdo572Wddw9ykGA9zm7dEOcJKRRPvKQbQ1x5r/Y= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247478.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 39KE5Obo030470; Fri, 20 Oct 2023 14:12:06 GMT Received: from mxout24.cac.washington.edu (mxout24.cac.washington.edu [140.142.234.158]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3tucu1maxp-3 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 20 Oct 2023 14:12:05 +0000 Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.54]) by mxout24.cac.washington.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 39KE8Awk023517 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 20 Oct 2023 07:08:10 -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 39KDvqKf011267 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 20 Oct 2023 07:08:10 -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 v23 27/33] libstdc++: Optimize std::is_object compilation performance Date: Fri, 20 Oct 2023 06:53:46 -0700 Message-ID: <20231020135748.1846670-28-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231020135748.1846670-1-kmatsui@gcc.gnu.org> References: <20231017113822.677344-1-kmatsui@gcc.gnu.org> <20231020135748.1846670-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: YMtwmAuRqUyANXDZNLUC_qeVOGhgXGKz X-Proofpoint-GUID: YMtwmAuRqUyANXDZNLUC_qeVOGhgXGKz 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=2023-10-20_10,2023-10-19_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 adultscore=0 phishscore=0 clxscore=1034 suspectscore=0 lowpriorityscore=0 impostorscore=0 mlxlogscore=595 mlxscore=0 bulkscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2310170001 definitions=main-2310200116 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 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+incoming=patchwork.ozlabs.org@gcc.gnu.org This patch optimizes the compilation performance of std::is_object by dispatching to the new __is_object built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (is_object): Use __is_object built-in trait. (is_object_v): Likewise. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 1e561c8ea38..80ec0fd5475 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -725,11 +725,18 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { }; /// is_object +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_object) + template + struct is_object + : public __bool_constant<__is_object(_Tp)> + { }; +#else template struct is_object : public __not_<__or_, is_reference<_Tp>, is_void<_Tp>>>::type { }; +#endif template struct is_member_pointer; @@ -3315,8 +3322,15 @@ template inline constexpr bool is_arithmetic_v = is_arithmetic<_Tp>::value; template inline constexpr bool is_fundamental_v = is_fundamental<_Tp>::value; + +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_object) +template + inline constexpr bool is_object_v = __is_object(_Tp); +#else template inline constexpr bool is_object_v = is_object<_Tp>::value; +#endif + template inline constexpr bool is_scalar_v = is_scalar<_Tp>::value; template