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[2620:52:3:1:0:246e:9693:128c]) by mx.google.com with ESMTPS id m19-20020a056402051300b0052177c07808si827565edv.487.2023.07.18.00.43.33 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Jul 2023 00:43:33 -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=oHnTwrFO; 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 8C7C6385AFB8 for ; Tue, 18 Jul 2023 07:42:38 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 8C7C6385AFB8 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1689666158; bh=refrg1p57fcghDTjUAefOLXEqjC8IZ4XYXPdVFD6r74=; 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=oHnTwrFO+KMfetdUHGHCIhdxu9rpfp9tl62aTcA9o5QgkfrCyUmHn1t+dwLTQJdoK NrPOoJtn04q3PLzhz5KEwRG3tmMvKD38bs5qv597q9M6N5eq5ef/AB2mwE3hh5itxv tpKE5QTdCYqJgzm2PLzgR5eUeaK1V9wUWtgfvzrE= 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 9AEE4385700F; Tue, 18 Jul 2023 07:41:56 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 9AEE4385700F 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 36I7T65L015083; Tue, 18 Jul 2023 07:41:56 GMT Received: from mxout21.s.uw.edu (mxout21.s.uw.edu [140.142.32.139]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3rwd44jaw3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 18 Jul 2023 07:41:55 +0000 Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.54]) by mxout21.s.uw.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 36I7fkmu023896 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 18 Jul 2023 00:41:46 -0700 X-Auth-Received: from localhost.localdomain ([10.154.74.234]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW19.10) with ESMTPSA id 36I7eSDx011317 (version=TLSv1.2 cipher=DHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Tue, 18 Jul 2023 00:41:46 -0700 X-UW-Orig-Sender: kmatsui@smtp.washington.edu To: gcc-patches@gcc.gnu.org Cc: libstdc++@gcc.gnu.org, Ken Matsui Subject: [PATCH v4 2/4] libstdc++: Optimize is_arithmetic trait performance Date: Tue, 18 Jul 2023 00:40:25 -0700 Message-ID: <20230718074027.32270-2-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230718074027.32270-1-kmatsui@gcc.gnu.org> References: <20230718062745.29470-1-kmatsui@gcc.gnu.org> <20230718074027.32270-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 X-Proofpoint-GUID: Nje5OjIUcfjnSvUS393GqnuXjd0Yg-6L X-Proofpoint-ORIG-GUID: Nje5OjIUcfjnSvUS393GqnuXjd0Yg-6L X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-17_15,2023-07-13_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 spamscore=0 mlxscore=0 adultscore=0 phishscore=0 priorityscore=1501 impostorscore=0 clxscore=1034 mlxlogscore=646 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307180068 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, 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: 2.1.29 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: 1771743439699353775 X-GMAIL-MSGID: 1771743439699353775 This patch optimizes the performance of the is_arithmetic trait by dispatching to the new __is_arithmetic built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (is_arithmetic): Use __is_arithmetic built-in trait. (is_arithmetic_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 0e7a9c9c7f3..7ebbe04c77b 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -655,10 +655,17 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { }; /// is_arithmetic +#if __has_builtin(__is_arithmetic) + template + struct is_arithmetic + : public __bool_constant<__is_arithmetic(_Tp)> + { }; +#else template struct is_arithmetic : public __or_, is_floating_point<_Tp>>::type { }; +#endif /// is_fundamental template @@ -3198,8 +3205,15 @@ template inline constexpr bool is_reference_v<_Tp&> = true; template inline constexpr bool is_reference_v<_Tp&&> = true; + +#if __has_builtin(__is_arithmetic) +template + inline constexpr bool is_arithmetic_v = __is_arithmetic(_Tp); +#else template inline constexpr bool is_arithmetic_v = is_arithmetic<_Tp>::value; +#endif + template inline constexpr bool is_fundamental_v = is_fundamental<_Tp>::value; template