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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 40AJdR44018049; Wed, 10 Jan 2024 19:41:10 GMT Received: from mxout25.s.uw.edu (mxout25.s.uw.edu [140.142.234.175]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3vhyq0sc4c-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 10 Jan 2024 19:41:10 +0000 Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.54]) by mxout25.s.uw.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 40AJegB6002141 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 10 Jan 2024 11:40:42 -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+UW19.10) with ESMTPSA id 40AJefnF020412 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 10 Jan 2024 11:40:42 -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 06/14] libstdc++: Optimize std::is_arithmetic compilation performance Date: Wed, 10 Jan 2024 01:22:57 -0800 Message-ID: <20240110194031.2384005-7-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240110194031.2384005-1-kmatsui@gcc.gnu.org> References: <20240110194031.2384005-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: 7Gz9W49gnfzgO7ppa-rVgoFtQZkwgW12 X-Proofpoint-GUID: 7Gz9W49gnfzgO7ppa-rVgoFtQZkwgW12 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-10_10,2024-01-10_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 lowpriorityscore=0 clxscore=1034 impostorscore=0 malwarescore=0 spamscore=0 bulkscore=0 phishscore=0 mlxscore=0 mlxlogscore=528 suspectscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401100156 X-Spam-Status: No, score=-11.8 required=5.0 tests=BAYES_00, DATE_IN_PAST_06_12, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, RCVD_IN_DNSWL_NONE, 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+patchwork=sourceware.org@gcc.gnu.org This patch optimizes the compilation performance of std::is_arithmetic 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 | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 23ea70eca18..9baf3b2aa46 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -728,10 +728,17 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION #endif /// is_arithmetic +#if _GLIBCXX_USE_BUILTIN_TRAIT(__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 @@ -3317,8 +3324,14 @@ template inline constexpr bool is_reference_v<_Tp&&> = true; #endif +#if _GLIBCXX_USE_BUILTIN_TRAIT(__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;