From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-00641c01.pphosted.com (mx0b-00641c01.pphosted.com [205.220.177.146]) by sourceware.org (Postfix) with ESMTPS id B89A5384AB55; Thu, 2 May 2024 16:16:38 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org B89A5384AB55 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 B89A5384AB55 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=1714666614; cv=none; b=Athhfb43N4Hc5jjNIjgASn15tUFqNz+Oy90AoxnrVyivfXEADYdmN+nCfGiohlmEBNscDeGHRD/BA5f1x45I2/umzl+CaSPRQhlqx33quESGrbBatdEo1xitgG7MvxyZ6FPQIUCbD0MV3oNK5yTNJ0WfX6YjzWXjXxaxMy10mhc= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1714666614; c=relaxed/simple; bh=PuO8vOYeXmCD28528HssOUATtQMRh/+DqA0gzty9C9k=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=naOmzqN4lzAA+PzZHVrbrF2Eo9ecWLGXt3r8a2n56Enz10yHb+IkNUsTRgK0fLsVrx1WJ3rowBe6gWNWWNfxiEz2+IIVTd5Yw/4IOWAzwiqhbNgZSZsxKhHKueNtmVtOmE0OtfLRK5klLx25K8On8pC5CybMIeV7wrofF0GxfXs= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247479.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 442GExmZ023338; Thu, 2 May 2024 16:16:38 GMT Received: from mxout25.s.uw.edu (mxout25.s.uw.edu [140.142.234.175]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3xv4e2uemt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 02 May 2024 16:16:38 +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 442GGGdV024916 (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 442GGFon023119 (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 10/26] libstdc++: Optimize std::add_pointer compilation performance Date: Thu, 2 May 2024 09:13:36 -0700 Message-ID: <20240502161614.3705912-11-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: 2etIm-klREdl2d3iZ7xPojFrhSan5wr9 X-Proofpoint-ORIG-GUID: 2etIm-klREdl2d3iZ7xPojFrhSan5wr9 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_05,2024-05-02_03,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 impostorscore=0 priorityscore=1501 bulkscore=0 suspectscore=0 clxscore=1034 mlxlogscore=683 spamscore=0 mlxscore=0 phishscore=0 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2404010003 definitions=main-2405020106 X-Spam-Status: No, score=-13.3 required=5.0 tests=BAYES_00,GIT_PATCH_0,JMQ_SPF_NEUTRAL,KAM_DMARC_STATUS,RCVD_IN_DNSWL_LOW,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::add_pointer by dispatching to the new __builtin_add_pointer trait. libstdc++-v3/ChangeLog: * include/std/type_traits (add_pointer): Use __builtin_add_pointer trait. Signed-off-by: Ken Matsui --- libstdc++-v3/include/std/type_traits | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 3d7d00c3bb8..59d952194af 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -2149,6 +2149,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { }; #endif + /// add_pointer +#if _GLIBCXX_USE_BUILTIN_TRAIT(__builtin_add_pointer) + template + struct add_pointer + { using type = __builtin_add_pointer(_Tp); }; +#else template struct __add_pointer_helper { using type = _Tp; }; @@ -2157,7 +2163,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct __add_pointer_helper<_Tp, __void_t<_Tp*>> { using type = _Tp*; }; - /// add_pointer template struct add_pointer : public __add_pointer_helper<_Tp> @@ -2170,6 +2175,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template struct add_pointer<_Tp&&> { using type = _Tp*; }; +#endif #if __cplusplus > 201103L /// Alias template for remove_pointer -- 2.44.0