Message ID | 20230914064949.29787-41-kmatsui@gcc.gnu.org |
---|---|
State | Unresolved |
Headers |
Return-Path: <gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org> Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:172:b0:3f2:4152:657d with SMTP id h50csp173840vqi; Thu, 14 Sep 2023 00:34:17 -0700 (PDT) X-Google-Smtp-Source: AGHT+IEZDsXPQwT8MHKxQULfJ0ebDmGKjOgbq0vqSsYiau3vl5+bZ443YI3MHYjcdFNbXXX9vsvd X-Received: by 2002:a2e:98d7:0:b0:2bd:124a:23d5 with SMTP id s23-20020a2e98d7000000b002bd124a23d5mr4210222ljj.11.1694676857564; Thu, 14 Sep 2023 00:34:17 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1694676857; cv=none; d=google.com; s=arc-20160816; b=Gy9LEjpSY9nSBJulIWiFraj5767P1lWRBbj66NbxLqubKiVJe2p3deQl6ZSp3fjTAC OWgsW+vOGkF2bAAglDARFqlfJOipAo0cU1KLmufDdi0hGfToKw8ZW4Yy1C7wg/UDtOsv 4EIAlHo/VSB75HWomhTDtVQU5os0NUfFXg7cvrUrYXISk6scwmUovU2rSehVJr9neyFC inDlTmqixVF2lk8A0dZdO880HHdBmRSOPWqUWV4v6f7X3hYcpXeD75nIbKuU7TXy6TYw 3VPnmQVq1cGIyWLPvxbXrz+we6uqZk1mgv/oLfha/yFvC9WHIvMh/GfPz+9kffeYqimb YwuA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:reply-to:from: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:dmarc-filter:delivered-to :dkim-signature:dkim-filter; bh=wgA0JB2W7H093Rs+2xKll9G1wCc1Kjb079SkDPcw4Tc=; fh=kSSy/oyUXqQD15FLeKdymIgDBFPFITPA1Gj52CNOxRQ=; b=PkxrU2jvYgAuvhkRabF+4UGqa2pnJpCqgLUnks8i9DjiI8dbBaOFsloQDxFelaSsxR ai/C4/1GYGDHLHZgkQPVJ0lg+UIdnp2UPUXsgjFFcisvCIPLHLd784qZ016oq/c+SLab SadzUpz13f9ZMIVEWBinnu0hu709OjAVrkQoTPflTsyqLB9pp29XIvG1DM+AAq19CHzn Ah0c71ELVnHmtRHaBRq71vRyvWF8g4dm3ylEiBLGchO/RL6Ygj9wvEw0CnxPvkz+SQe/ zG7YIuN+6XSx1oLiBbmibD2PFXF6Mb+UAZxarblEOKUTB+oNKDS6pZhw2wtVvIt0gFSh X+gQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=V1qPLeQs; 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 (ip-8-43-85-97.sourceware.org. [8.43.85.97]) by mx.google.com with ESMTPS id dv23-20020a170906b81700b0099bd00f8f73si755059ejb.742.2023.09.14.00.34.17 for <ouuuleilei@gmail.com> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Sep 2023 00:34:17 -0700 (PDT) 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=V1qPLeQs; 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 696093850DFA for <ouuuleilei@gmail.com>; Thu, 14 Sep 2023 07:07:40 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 696093850DFA DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1694675260; bh=wgA0JB2W7H093Rs+2xKll9G1wCc1Kjb079SkDPcw4Tc=; h=To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=V1qPLeQsG9DywJtky6YfIamWrQdDfL6i3h2W2fLAMNU3pJVFG24txYgNtFj7QshL+ LVm7r4e7hbuOlQe196xw4lLkFYuCsIuwElyMOeK4kRYJs81zbhOqHs7SSnbSX9YzpO TosmLVGPybAS/zfPlHoXEEYFRWnjreCHYuvz5Gno= 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 62524385C6DA; Thu, 14 Sep 2023 06:51:25 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 62524385C6DA Received: from pps.filterd (m0247472.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 38E6pIh4018774; Thu, 14 Sep 2023 06:51:24 GMT Received: from mxout22.s.uw.edu (mxout22.s.uw.edu [128.95.242.222]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3t3h2jwah0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 14 Sep 2023 06:51:24 +0000 Received: from smtp.washington.edu (smtp.washington.edu [140.142.234.157]) by mxout22.s.uw.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 38E6oson029082 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 13 Sep 2023 23:50:54 -0700 X-Auth-Received: from localhost.localdomain ([10.154.75.179]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW19.10) with ESMTPSA id 38E6nuq3027316 (version=TLSv1.2 cipher=DHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Wed, 13 Sep 2023 23:50:54 -0700 X-UW-Orig-Sender: kmatsui@smtp.washington.edu To: gcc-patches@gcc.gnu.org Cc: libstdc++@gcc.gnu.org, Ken Matsui <kmatsui@gcc.gnu.org> Subject: [PATCH v11 40/40] libstdc++: Optimize is_scalar trait performance Date: Wed, 13 Sep 2023 23:43:19 -0700 Message-ID: <20230914064949.29787-41-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230914064949.29787-1-kmatsui@gcc.gnu.org> References: <20230914064949.29787-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: ESo8BqQ1ziFsuSPlW1aAsAMv0zXXjNGC X-Proofpoint-ORIG-GUID: ESo8BqQ1ziFsuSPlW1aAsAMv0zXXjNGC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-09-14_04,2023-09-13_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 clxscore=1034 mlxscore=0 bulkscore=0 malwarescore=0 phishscore=0 mlxlogscore=657 spamscore=0 impostorscore=0 adultscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2309140060 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 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 <gcc-patches.gcc.gnu.org> List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-patches>, <mailto:gcc-patches-request@gcc.gnu.org?subject=unsubscribe> List-Archive: <https://gcc.gnu.org/pipermail/gcc-patches/> List-Post: <mailto:gcc-patches@gcc.gnu.org> List-Help: <mailto:gcc-patches-request@gcc.gnu.org?subject=help> List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-patches>, <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe> From: Ken Matsui via Gcc-patches <gcc-patches@gcc.gnu.org> Reply-To: Ken Matsui <kmatsui@gcc.gnu.org> Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" <gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1776997480812710190 X-GMAIL-MSGID: 1776997480812710190 |
Series |
Optimize type traits performance
|
|
Checks
Context | Check | Description |
---|---|---|
snail/gcc-patch-check | warning | Git am fail log |
Commit Message
Ken Matsui
Sept. 14, 2023, 6:43 a.m. UTC
This patch optimizes the performance of the is_scalar trait by dispatching to
the new __is_scalar built-in trait.
libstdc++-v3/ChangeLog:
* include/std/type_traits (is_scalar): Use __is_scalar built-in
trait.
(is_scalar_v): Likewise.
Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
---
libstdc++-v3/include/std/type_traits | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 7e93923f44b..eb16a642575 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -775,11 +775,18 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct is_member_pointer; /// is_scalar +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_scalar) + template<typename _Tp> + struct is_scalar + : public __bool_constant<__is_scalar(_Tp)> + { }; +#else template<typename _Tp> struct is_scalar : public __or_<is_arithmetic<_Tp>, is_enum<_Tp>, is_pointer<_Tp>, is_member_pointer<_Tp>, is_null_pointer<_Tp>>::type { }; +#endif /// is_compound template<typename _Tp> @@ -3398,8 +3405,14 @@ template <typename _Tp> inline constexpr bool is_object_v = is_object<_Tp>::value; #endif +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_scalar) +template <typename _Tp> + inline constexpr bool is_scalar_v = __is_scalar(_Tp); +#else template <typename _Tp> inline constexpr bool is_scalar_v = is_scalar<_Tp>::value; +#endif + template <typename _Tp> inline constexpr bool is_compound_v = !is_fundamental_v<_Tp>;