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Thu, 15 Feb 2024 15:21:09 +0000 Received: from smtp.washington.edu (smtp.washington.edu [140.142.234.157]) by mxout25.s.uw.edu (8.14.4+UW20.07/8.14.4+UW24.02) with ESMTP id 41FFKlVg030366 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 15 Feb 2024 07:20:47 -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+UW24.02) with ESMTPSA id 41FFKkh0029956 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 15 Feb 2024 07:20:47 -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 v5 14/14] libstdc++: Optimize std::rank compilation performance Date: Thu, 15 Feb 2024 07:20:37 -0800 Message-ID: <20240215152037.720162-14-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240215152037.720162-1-kmatsui@gcc.gnu.org> References: <20240215045258.3025806-1-kmatsui@gcc.gnu.org> <20240215152037.720162-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 X-Proofpoint-GUID: cutrV_CUjUu0MeGYW60OP0JK1uJ_6PjE X-Proofpoint-ORIG-GUID: cutrV_CUjUu0MeGYW60OP0JK1uJ_6PjE X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-15_14,2024-02-14_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 adultscore=0 mlxlogscore=727 clxscore=1034 priorityscore=1501 mlxscore=0 phishscore=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 spamscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2402150123 X-Spam-Status: No, score=-12.9 required=5.0 tests=BAYES_00, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, 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: 1790979182855074738 X-GMAIL-MSGID: 1790979182855074738 This patch optimizes the compilation performance of std::rank by dispatching to the new __rank built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (rank): Use __rank built-in trait. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 90718d772dd..5d2e6eaa2a2 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -1445,6 +1445,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION }; /// rank +#if _GLIBCXX_USE_BUILTIN_TRAIT(__rank) + template + struct rank + : public integral_constant { }; +#else template struct rank : public integral_constant { }; @@ -1456,6 +1461,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template struct rank<_Tp[]> : public integral_constant::value> { }; +#endif /// extent template