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[2620:52:3:1:0:246e:9693:128c]) by mx.google.com with ESMTPS id pj4-20020a170906d78400b00993470682e9si2399068ejb.739.2023.09.14.20.50.38 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Sep 2023 20:50:38 -0700 (PDT) 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=RisR7IXV; 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 9624239F87F7 for ; Fri, 15 Sep 2023 03:04:52 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9624239F87F7 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1694747092; bh=o1Nmja410XQ2AZC2k+g0bmtqEr2kmIa4YhBvVROe/As=; 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=RisR7IXVLU6sIfeWd9G0MTyq4nkZ/wvaMd5CSgwIaTM8NqM6IvYeN23on/e+y+b1a F2eXiCHDoNKSbDc/4OJQLhee3Ab0tx1HjqhAuK06z7lX4g/KY7o30KqA8Xx1hPTjNn hwMGmFz8VXNNbzh5N9/ssDDBNiLqfwXEAu+8y2RQ= 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 EE0E7388459A; Fri, 15 Sep 2023 02:37:29 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org EE0E7388459A 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 38F2Yo3s013243; Fri, 15 Sep 2023 02:37:29 GMT Received: from mxout22.s.uw.edu (mxout22.s.uw.edu [128.95.242.222]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3t4c8grsam-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 15 Sep 2023 02:37:29 +0000 Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.54]) by mxout22.s.uw.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 38F2ahdh010164 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 14 Sep 2023 19:36:43 -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 38F2agoQ001192 (version=TLSv1.2 cipher=DHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Thu, 14 Sep 2023 19:36:43 -0700 X-UW-Orig-Sender: kmatsui@smtp.washington.edu To: gcc-patches@gcc.gnu.org Cc: libstdc++@gcc.gnu.org, Ken Matsui Subject: [PATCH v13 34/40] libstdc++: Optimize is_compound trait performance Date: Thu, 14 Sep 2023 19:35:14 -0700 Message-ID: <20230915023640.75216-35-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230915023640.75216-1-kmatsui@gcc.gnu.org> References: <20230915022305.74083-1-kmatsui@gcc.gnu.org> <20230915023640.75216-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: JNzTFZZYKj_Dmjq4BLJp2vmK_L-rqdeT X-Proofpoint-GUID: JNzTFZZYKj_Dmjq4BLJp2vmK_L-rqdeT 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=2023-09-15_02,2023-09-14_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 mlxscore=0 lowpriorityscore=0 priorityscore=1501 malwarescore=0 mlxlogscore=601 impostorscore=0 bulkscore=0 clxscore=1034 phishscore=0 spamscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2309150022 X-Spam-Status: No, score=-13.1 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Ken Matsui via Gcc-patches From: Ken Matsui Reply-To: Ken Matsui Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1776996293852351903 X-GMAIL-MSGID: 1777074006532610963 This patch optimizes the performance of the is_compound trait by dispatching to the new __is_arithmetic built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (is_compound): Do not use __not_. (is_compound_v): Use is_fundamental_v instead. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 88171e1a672..48d630a1478 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -784,7 +784,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION /// is_compound template struct is_compound - : public __not_>::type { }; + : public __bool_constant::value> { }; /// is_member_pointer #if _GLIBCXX_USE_BUILTIN_TRAIT(__is_member_pointer) @@ -3387,7 +3387,7 @@ template template inline constexpr bool is_scalar_v = is_scalar<_Tp>::value; template - inline constexpr bool is_compound_v = is_compound<_Tp>::value; + inline constexpr bool is_compound_v = !is_fundamental_v<_Tp>; #if _GLIBCXX_USE_BUILTIN_TRAIT(__is_member_pointer) template