Message ID | 20231010095229.3364786-13-kmatsui@gcc.gnu.org |
---|---|
State | Unresolved |
Headers |
Return-Path: <gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org> Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:2908:b0:403:3b70:6f57 with SMTP id ib8csp86842vqb; Tue, 10 Oct 2023 03:12:46 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGhtTKH/AkBjeXrbe242m1OwS+axABSlVSbCPbri0sREOzNRLGIZe1zy4iGZO4V/QJNEF2t X-Received: by 2002:a17:906:10b:b0:9a9:eef6:434a with SMTP id 11-20020a170906010b00b009a9eef6434amr16414427eje.36.1696932766661; Tue, 10 Oct 2023 03:12:46 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1696932766; cv=none; d=google.com; s=arc-20160816; b=tf++vMWcJNbNFW6QEbc4IzqkSbv4LtaN+G9udTJw1nHgTeHQJ9U3bdVKx9vrqQhrfZ 7xxG6+vFUvvbFADfkCxjZsK15DmMt6sEbrZAJ8kyH4kXGZy7FjMvm468i0m7PnvldZgR Vm79ZQ2UqHF9Q70nfoUrMojZ+urA/3caR7pzffcApVlz5zRMFhOmOMZX4WtA2Fux4Wg5 747ZPTFBN4xB0/Z/+ZvC5e873kltuAxAkWnG+tFK0xoOmqVuX764pN+TMiSTQmervZOL As1/g56bml2f/dmxi6fitE4zV/8g1jxGJdPy8UrgP/AmEbson9bo7424nvF0nhwmxP1x oGmQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:dmarc-filter:delivered-to:dkim-signature:dkim-filter; bh=rT+97LmUY51Goy/RS0sjhzzPDqddkmENQDgxhZx+FfQ=; fh=kSSy/oyUXqQD15FLeKdymIgDBFPFITPA1Gj52CNOxRQ=; b=yEVPy6agwOOpuNbu4AuDeGMkIxLiWkioKRLef/FCM1bXkx7BVUIXl88S+GZu1f0zBl SHoQ44EjGN25FkusS2RCfpnfJgzcs2tU/j09Z3JoyA+ut9MFpabCCErP3wiy6PM0yNyJ +gLm+vO+0Ron/BAe3rc3GGBFg+KiQ57K0vKouag4vrJYtAM+wGV+u1+vR4ayNSyDyQKN RIvzB6Buppn+cmYkoSWMRMzBCo1OcYk0yZ74hqOOFD8WCWfC/L/36dKv1CWfIHBxNA0W 3RkJchN5yGSErPd5UB/dAZ/Br32zhvDpxMChry9tZ/xu7XWEMNiGgFNP4xlUY2hBnDZb zJYw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=XP8um9Xe; 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 (server2.sourceware.org. [2620:52:3:1:0:246e:9693:128c]) by mx.google.com with ESMTPS id r12-20020a170906c28c00b009b2813dbf62si5239052ejz.628.2023.10.10.03.12.46 for <ouuuleilei@gmail.com> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Oct 2023 03:12:46 -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=XP8um9Xe; 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 30C8A3954433 for <ouuuleilei@gmail.com>; Tue, 10 Oct 2023 10:03:33 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 30C8A3954433 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1696932213; bh=rT+97LmUY51Goy/RS0sjhzzPDqddkmENQDgxhZx+FfQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=XP8um9XemnFJEZyBnutWlMvrHFziiHithRXHjv3OLD4Z7N8zj5Alz1WM/vm6wRyrb r9BOb7+fqBhUiZ6KmMsEkIoYq1DGKUr5HgwGn+9q2qc+2AysQIitu+I3CEvsImxnZ+ 6BhJz9VihykFu5FzloImu6Oc7I+hzqrY3W3AxqaQ= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mx0a-00641c01.pphosted.com (mx0a-00641c01.pphosted.com [205.220.165.146]) by sourceware.org (Postfix) with ESMTPS id 9EC1338983BA; Tue, 10 Oct 2023 10:01:31 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 9EC1338983BA Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=gcc.gnu.org Authentication-Results: sourceware.org; spf=fail smtp.mailfrom=gcc.gnu.org Received: from pps.filterd (m0247471.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 39A9kiGW010922; Tue, 10 Oct 2023 10:01:30 GMT Received: from mxout26.s.uw.edu (mxout26.s.uw.edu [140.142.234.176]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3tmscbb247-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 10 Oct 2023 10:01:30 +0000 Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.132]) by mxout26.s.uw.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 39AA1KaB030892 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 10 Oct 2023 03:01:20 -0700 X-Auth-Received: from kmatsui-ThinkPad-X1-Carbon-Gen-9.dhcp4.washington.edu ([10.19.18.191]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW19.10) with ESMTPSA id 39A9qhTI014491 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 10 Oct 2023 03:01:20 -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 v15 12/39] libstdc++: Optimize is_bounded_array trait performance Date: Tue, 10 Oct 2023 02:46:26 -0700 Message-ID: <20231010095229.3364786-13-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231010095229.3364786-1-kmatsui@gcc.gnu.org> References: <20230915023640.75216-1-kmatsui@gcc.gnu.org> <20231010095229.3364786-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: 52SHC3UPU3pLc77KypfDw8FA8WzdxCjQ X-Proofpoint-ORIG-GUID: 52SHC3UPU3pLc77KypfDw8FA8WzdxCjQ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-10-10_05,2023-10-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=660 spamscore=0 lowpriorityscore=0 phishscore=0 adultscore=0 bulkscore=0 suspectscore=0 priorityscore=1501 impostorscore=0 mlxscore=0 malwarescore=0 clxscore=1034 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2309180000 definitions=main-2310100075 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 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+ouuuleilei=gmail.com@gcc.gnu.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1776996999788880715 X-GMAIL-MSGID: 1779362972531247344 |
Series |
Optimize type traits performance
|
|
Checks
Context | Check | Description |
---|---|---|
snail/gcc-patch-check | warning | Git am fail log |
Commit Message
Ken Matsui
Oct. 10, 2023, 9:46 a.m. UTC
This patch optimizes the performance of the is_bounded_array trait by
dispatching to the new __is_bounded_array built-in trait.
libstdc++-v3/ChangeLog:
* include/std/type_traits (is_bounded_array_v): Use __is_bounded_array
built-in trait.
Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
---
libstdc++-v3/include/std/type_traits | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index cb3d9e238fa..d306073a797 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -3532,11 +3532,16 @@ template<typename _Ret, typename _Fn, typename... _Args> /// True for a type that is an array of known bound. /// @ingroup variable_templates /// @since C++20 +# if _GLIBCXX_USE_BUILTIN_TRAIT(__is_bounded_array) + template<typename _Tp> + inline constexpr bool is_bounded_array_v = __is_bounded_array(_Tp); +# else template<typename _Tp> inline constexpr bool is_bounded_array_v = false; template<typename _Tp, size_t _Size> inline constexpr bool is_bounded_array_v<_Tp[_Size]> = true; +# endif /// True for a type that is an array of unknown bound. /// @ingroup variable_templates