From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-00641c01.pphosted.com (mx0a-00641c01.pphosted.com [205.220.165.146]) by sourceware.org (Postfix) with ESMTPS id AEE333858408; Thu, 2 May 2024 16:16:33 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org AEE333858408 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 AEE333858408 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=205.220.165.146 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1714666596; cv=none; b=xGs7eq6Nsm8GnIUL30Q7/MiNbuT6CW1r+st05S7K4qCoIOL5mCgMvXZc1PKgafpP/gQyD8rgcueR2EqfmE/gw3hcxjddU2JJiP/pRNGKUf/tEwlMcCfYYOGh9wVxY6JVx6JwATzfkWlVVxYK7ndotk7En7LQx6lPlpdidwFtBsc= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1714666596; c=relaxed/simple; bh=GGh+gJW2JDbLyns9p4n8Bi7KkVtV6Sp8hFM31gTQtfo=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=sBUOnfG/vwhRV6X9aZUjBXaimCAMRyPYIIHOKmijAGE2vXBlDSoIw50xKik7xTEz6hlpTSbslF3N4l1arfwuOxOgP3heYNaCIerjL4ldl3tNMsCydAtbjuGH1Nywrh6/F9yQcxhoaFaLRY2oVl/dl5i358wGpNZTfHiLFgVyfog= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247472.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 442GFbQl008287; Thu, 2 May 2024 16:16:32 GMT Received: from mxout22.s.uw.edu (mxout22.s.uw.edu [128.95.242.222]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3xv4e2upu6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 02 May 2024 16:16:32 +0000 (GMT) Received: from smtp.washington.edu (smtp.washington.edu [128.208.60.54]) by mxout22.s.uw.edu (8.14.4+UW20.07/8.14.4+UW24.02) with ESMTP id 442GGGOG003515 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 2 May 2024 09:16:16 -0700 X-Auth-Received: from ken-20xw00qgus.dhcp4.washington.edu ([10.154.75.239]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW24.02) with ESMTPSA id 442GGFp1023119 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 2 May 2024 09:16:16 -0700 X-UW-Orig-Sender: kmatsui@smtp.washington.edu From: Ken Matsui To: gcc-patches@gcc.gnu.org Cc: libstdc++@gcc.gnu.org, jason@redhat.com, Ken Matsui Subject: [PATCH v16 22/26] libstdc++: Optimize std::rank compilation performance Date: Thu, 2 May 2024 09:13:48 -0700 Message-ID: <20240502161614.3705912-23-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240502161614.3705912-1-kmatsui@gcc.gnu.org> References: <20240228192843.188979-1-kmatsui@gcc.gnu.org> <20240502161614.3705912-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: U2kIXe1oQ51z8am5CJ6NLIHhm1cUWPVU X-Proofpoint-ORIG-GUID: U2kIXe1oQ51z8am5CJ6NLIHhm1cUWPVU X-outbound-smtp: 1 x-header: uw-relay-non-domains X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1011,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-05-02_08,2024-05-02_03,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 impostorscore=0 spamscore=0 mlxscore=0 phishscore=0 priorityscore=1501 mlxlogscore=836 adultscore=0 clxscore=1034 suspectscore=0 malwarescore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2404010003 definitions=main-2405020106 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_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 List-Id: This patch optimizes the compilation performance of std::rank by dispatching to the new __builtin_rank trait. libstdc++-v3/ChangeLog: * include/std/type_traits (rank): Use __builtin_rank 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 45c73d477d0..15933a0730e 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(__builtin_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 @@ -3583,12 +3589,17 @@ template template inline constexpr size_t alignment_of_v = alignment_of<_Tp>::value; +#if _GLIBCXX_USE_BUILTIN_TRAIT(__builtin_rank) +template + inline constexpr size_t rank_v = __builtin_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; -- 2.44.0