From patchwork Wed Feb 28 19:26:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ken Matsui X-Patchwork-Id: 86540 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 2E10A38582A3 for ; Wed, 28 Feb 2024 19:39:00 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2E10A38582A3 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1709149140; bh=lgq21uAVEPa2C3JIU6RomScvjjiMeucDEYgXRa1a1pw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=QIjxfnIZdLRt8YIeQzRyI4ZV3/1Ds1GtKmPK+DJgu7E4n2EWtnzl0krMtoTUVrsYT xyleBdpGjSeMMWlh+Xlc5+zr9VeOrjRGQt1xOT9y/tnNh1vjV7mFP/3/f5HYXHyUWG AWRf6UcNFKb7xMumOWUn7Uw7xUc7yhC6RKH9zpjQ= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mx0b-00641c01.pphosted.com (mx0b-00641c01.pphosted.com [205.220.177.146]) by sourceware.org (Postfix) with ESMTPS id 812AD38582A2; Wed, 28 Feb 2024 19:32:06 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 812AD38582A2 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 ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 812AD38582A2 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=205.220.177.146 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1709148729; cv=none; b=Yqo6gDykT9/a9+PjR3HcxwKsr9pUVNVdPCLsXUU2042/04w7YOn5BoGYvl54AuyNm69re2c6nQzL9Nh2I8Io/hXjK1teMwzl+myNjU3ARXSpsk0LnpVQFB2LYzHcUt999OGWaAtsSnQy2FV7VvalTR30ciB7jQGOfzVERemnAD8= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1709148729; c=relaxed/simple; bh=gXCmRB8005/Ugz7Z3lirnPY6Ia6StyAIz2HP/NLttjM=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=xZLky4szbRqsZccuYwIfpHNW1Gl/3rFWEOrvTKcX5yujiVqvWjcASPumBLlWlwJmM8mZrFkoq5eD22BjQs+LFWEr0WcO1+4laZ7LqPsf1iyZlCQ5w5Nk5ZS9lBiDs/UdK5YwB2Ix4L6bx/Zn7sRjIK7WdDv3YR4QI6KYQsrMqOM= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247477.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 41SJS9or021030; Wed, 28 Feb 2024 19:32:06 GMT Received: from mxout22.s.uw.edu (mxout22.s.uw.edu [128.95.242.222]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3wja2y8p4m-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 28 Feb 2024 19:32:05 +0000 Received: from smtp.washington.edu (smtp.washington.edu [140.142.234.157]) by mxout22.s.uw.edu (8.14.4+UW20.07/8.14.4+UW24.02) with ESMTP id 41SJSqgH018997 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 28 Feb 2024 11:28:52 -0800 X-Auth-Received: from kmatsui-ThinkPad-X1-Carbon-Gen-9.dhcp4.washington.edu ([10.154.74.128]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW24.02) with ESMTPSA id 41SJSoTe015429 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 28 Feb 2024 11:28:52 -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 v14 22/26] libstdc++: Optimize std::rank compilation performance Date: Wed, 28 Feb 2024 11:26:27 -0800 Message-ID: <20240228192843.188979-23-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240228192843.188979-1-kmatsui@gcc.gnu.org> References: <20240221093616.4001742-1-kmatsui@gcc.gnu.org> <20240228192843.188979-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: o2LjdjdIHgjtpQglGMp-o4V7kPJZ1ioQ X-Proofpoint-GUID: o2LjdjdIHgjtpQglGMp-o4V7kPJZ1ioQ 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=2024-02-28_08,2024-02-27_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 spamscore=0 clxscore=1034 priorityscore=1501 impostorscore=0 malwarescore=0 mlxlogscore=782 suspectscore=0 mlxscore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2402280153 X-Spam-Status: No, score=-13.4 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, 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::rank by dispatching to the new __rank built-in trait. libstdc++-v3/ChangeLog: * include/std/type_traits (rank): Use __rank built-in trait. (rank_v): Likewise. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 2f4c8dd3b21..1577042a5b8 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -1473,6 +1473,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION }; /// rank +#if _GLIBCXX_USE_BUILTIN_TRAIT(__rank) + template + struct rank + : public integral_constant { }; +#else template struct rank : public integral_constant { }; @@ -1484,6 +1489,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template struct rank<_Tp[]> : public integral_constant::value> { }; +#endif /// extent template @@ -3579,12 +3585,17 @@ template template inline constexpr size_t alignment_of_v = alignment_of<_Tp>::value; +#if _GLIBCXX_USE_BUILTIN_TRAIT(__rank) +template + inline constexpr size_t rank_v = __rank(_Tp); +#else template inline constexpr size_t rank_v = 0; template inline constexpr size_t rank_v<_Tp[_Size]> = 1 + rank_v<_Tp>; template inline constexpr size_t rank_v<_Tp[]> = 1 + rank_v<_Tp>; +#endif template inline constexpr size_t extent_v = 0;