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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 40AJegqw002134 (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 40AJefnB020412 (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 02/14] libstdc++: Optimize std::is_integral compilation performance Date: Wed, 10 Jan 2024 01:22:53 -0800 Message-ID: <20240110194031.2384005-3-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: i3O4xxt67GdGM-pJBr5VgplAzpuqv2aS X-Proofpoint-GUID: i3O4xxt67GdGM-pJBr5VgplAzpuqv2aS 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 priorityscore=1501 bulkscore=0 mlxlogscore=494 clxscore=1034 suspectscore=0 adultscore=0 mlxscore=0 spamscore=0 impostorscore=0 malwarescore=0 lowpriorityscore=0 phishscore=0 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+ouuuleilei=gmail.com@gcc.gnu.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1787733973360946557 X-GMAIL-MSGID: 1787733973360946557 This patch optimizes the compilation performance of std::is_integral by dispatching to the new __is_integral built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (is_integral): Use __is_integral built-in trait. (is_integral_v): Likewise. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 1cec0822b73..afa281d9cc4 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -334,6 +334,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct is_void : public true_type { }; +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_integral) + /// is_integral + template + struct is_integral + : public __bool_constant<__is_integral(_Tp)> + { }; +#else /// @cond undocumented template struct __is_integral_helper @@ -461,6 +468,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct is_integral : public __is_integral_helper<__remove_cv_t<_Tp>>::type { }; +#endif /// @cond undocumented template @@ -3221,8 +3229,15 @@ template inline constexpr bool is_void_v = is_void<_Tp>::value; template inline constexpr bool is_null_pointer_v = is_null_pointer<_Tp>::value; + +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_integral) +template + inline constexpr bool is_integral_v = __is_integral(_Tp); +#else template inline constexpr bool is_integral_v = is_integral<_Tp>::value; +#endif + template inline constexpr bool is_floating_point_v = is_floating_point<_Tp>::value;