Message ID | 20240511090130.248174-6-kmatsui@gcc.gnu.org |
---|---|
State | New |
Headers | show
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Sat, 11 May 2024 09:02:14 GMT Received: from mxout25.s.uw.edu (mxout25.s.uw.edu [140.142.234.175]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3y24esr6pd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 11 May 2024 09:02:13 +0000 (GMT) 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+UW24.02) with ESMTP id 44B92A2h027972 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 11 May 2024 02:02:10 -0700 X-Auth-Received: from ken-20xw00qgus.dhcp4.washington.edu ([10.154.75.2]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW24.02) with ESMTPSA id 44B92ApO000628 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 11 May 2024 02:02:10 -0700 X-UW-Orig-Sender: kmatsui@smtp.washington.edu From: Ken Matsui <kmatsui@gcc.gnu.org> To: gcc-patches@gcc.gnu.org Cc: libstdc++@gcc.gnu.org, Ken Matsui <kmatsui@gcc.gnu.org> Subject: [PATCH v26 06/13] libstdc++: Optimize std::remove_extent compilation performance Date: Sat, 11 May 2024 02:01:23 -0700 Message-ID: <20240511090130.248174-6-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240511090130.248174-1-kmatsui@gcc.gnu.org> References: <20240510161405.194750-21-kmatsui@gcc.gnu.org> <20240511090130.248174-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: M22p8LZ25UP5m6wQi34IxC-LhfEZBOy8 X-Proofpoint-ORIG-GUID: M22p8LZ25UP5m6wQi34IxC-LhfEZBOy8 X-outbound-smtp: 1 x-header: uw-relay-non-domains X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-05-11_04,2024-05-10_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 bulkscore=0 malwarescore=0 priorityscore=1501 adultscore=0 mlxlogscore=535 clxscore=1034 phishscore=0 spamscore=0 impostorscore=0 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405010000 definitions=main-2405110066 X-Spam-Status: No, score=-13.0 required=5.0 tests=BAYES_00, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, RCVD_IN_MSPIKE_H2, 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 <gcc-patches.gcc.gnu.org> List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-patches>, <mailto:gcc-patches-request@gcc.gnu.org?subject=unsubscribe> List-Archive: <https://gcc.gnu.org/pipermail/gcc-patches/> List-Post: <mailto:gcc-patches@gcc.gnu.org> List-Help: <mailto:gcc-patches-request@gcc.gnu.org?subject=help> List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-patches>, <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe> Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org |
Series |
[v26,01/13] libstdc++: Optimize std::is_const compilation performance
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diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 6313fde94c2..58281c2e38c 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -2092,6 +2092,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION // Array modifications. /// remove_extent +#if _GLIBCXX_USE_BUILTIN_TRAIT(__remove_extent) + template<typename _Tp> + struct remove_extent + { using type = __remove_extent(_Tp); }; +#else template<typename _Tp> struct remove_extent { using type = _Tp; }; @@ -2103,6 +2108,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template<typename _Tp> struct remove_extent<_Tp[]> { using type = _Tp; }; +#endif /// remove_all_extents template<typename _Tp>
This patch optimizes the compilation performance of std::remove_extent by dispatching to the new __remove_extent built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (remove_extent): Use __remove_extent built-in trait. Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org> --- libstdc++-v3/include/std/type_traits | 6 ++++++ 1 file changed, 6 insertions(+)