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 0A7E73858289; Thu, 2 May 2024 16:16:33 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 0A7E73858289 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 0A7E73858289 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=1714666601; cv=none; b=rRbh489ld37AtrkYeGxmvycrPUQL+gvJbbVK8lpvMPbSlJjRIdMZc+ZI7n7VYw4uXZy3h872+GqwCI5u5VL9D8RIWGGGsko2eZ2QVsgbbSe5lJQzU1aoLSWRVA9RYh7mYCtzZE15DkBLu0TTbbYVOSIDPssLY0lTzvWrPLsJ7us= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1714666601; c=relaxed/simple; bh=4qBCb6WHZCcFt2y8nea8NhA/LmYtZ2ZYxQSkYHsVITE=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=ezBgi9E2cTgvPW0/UTOPykuf4teM5fg0hZ7yZ8wwODVEOuTuHwY2oKSl9gaq75FKe3DEGglY2g42QJi6mYwZbl/4brO8NKeV2GvYSqYXStbNLgdfg/hRk8twbYAeAqwpenmMyDEWo/JZ9oPKkmPLDuKHsHEQgJyh2/G8NFW4SjE= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from pps.filterd (m0247474.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 442GBMEu032012; Thu, 2 May 2024 16:16:33 GMT Received: from mxout22.s.uw.edu (mxout22.s.uw.edu [128.95.242.222]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3xv4e43h33-1 (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 442GGGjR003512 (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 442GGFos023119 (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 15/26] c++: Implement __builtin_add_lvalue_reference trait Date: Thu, 2 May 2024 09:13:41 -0700 Message-ID: <20240502161614.3705912-16-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: Okzg04Lw8jBNMpJIdNX6BnXWfqMTaubO X-Proofpoint-ORIG-GUID: Okzg04Lw8jBNMpJIdNX6BnXWfqMTaubO 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 mlxscore=0 bulkscore=0 mlxlogscore=913 suspectscore=0 impostorscore=0 phishscore=0 clxscore=1034 malwarescore=0 priorityscore=1501 spamscore=0 lowpriorityscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2404010003 definitions=main-2405020106 X-Spam-Status: No, score=-12.8 required=5.0 tests=BAYES_00,GIT_PATCH_0,JMQ_SPF_NEUTRAL,KAM_DMARC_STATUS,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NEUTRAL,TVD_SPACE_RATIO,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 implements built-in trait for std::add_lvalue_reference. gcc/cp/ChangeLog: * cp-trait.def: Define __builtin_add_lvalue_reference. * semantics.cc (finish_trait_type): Handle CPTK_ADD_LVALUE_REFERENCE. gcc/testsuite/ChangeLog: * g++.dg/ext/has-builtin-1.C: Test existence of __builtin_add_lvalue_reference. * g++.dg/ext/add_lvalue_reference.C: New test. Signed-off-by: Ken Matsui --- gcc/cp/cp-trait.def | 1 + gcc/cp/semantics.cc | 6 ++++++ .../g++.dg/ext/add_lvalue_reference.C | 21 +++++++++++++++++++ gcc/testsuite/g++.dg/ext/has-builtin-1.C | 3 +++ 4 files changed, 31 insertions(+) create mode 100644 gcc/testsuite/g++.dg/ext/add_lvalue_reference.C diff --git a/gcc/cp/cp-trait.def b/gcc/cp/cp-trait.def index 4df0c63032e..228df46e3e4 100644 --- a/gcc/cp/cp-trait.def +++ b/gcc/cp/cp-trait.def @@ -48,6 +48,7 @@ #define DEFTRAIT_TYPE_DEFAULTED #endif +DEFTRAIT_TYPE (ADD_LVALUE_REFERENCE, "__builtin_add_lvalue_reference", 1) DEFTRAIT_TYPE (ADD_POINTER, "__builtin_add_pointer", 1) DEFTRAIT_EXPR (HAS_NOTHROW_ASSIGN, "__has_nothrow_assign", 1) DEFTRAIT_EXPR (HAS_NOTHROW_CONSTRUCTOR, "__has_nothrow_constructor", 1) diff --git a/gcc/cp/semantics.cc b/gcc/cp/semantics.cc index 07779a79d24..9f2220a1a91 100644 --- a/gcc/cp/semantics.cc +++ b/gcc/cp/semantics.cc @@ -12920,6 +12920,12 @@ finish_trait_type (cp_trait_kind kind, tree type1, tree type2, switch (kind) { + case CPTK_ADD_LVALUE_REFERENCE: + /* [meta.trans.ref]. */ + if (referenceable_type_p (type1)) + return cp_build_reference_type (type1, /*rval=*/false); + return type1; + case CPTK_ADD_POINTER: /* [meta.trans.ptr]. */ if (VOID_TYPE_P (type1) || referenceable_type_p (type1)) diff --git a/gcc/testsuite/g++.dg/ext/add_lvalue_reference.C b/gcc/testsuite/g++.dg/ext/add_lvalue_reference.C new file mode 100644 index 00000000000..56afa5c342d --- /dev/null +++ b/gcc/testsuite/g++.dg/ext/add_lvalue_reference.C @@ -0,0 +1,21 @@ +// { dg-do compile { target c++11 } } + +#define SA(X) static_assert((X),#X) + +class ClassType { }; + +SA(__is_same(__builtin_add_lvalue_reference(int), int&)); +SA(__is_same(__builtin_add_lvalue_reference(int&), int&)); +SA(__is_same(__builtin_add_lvalue_reference(const int), const int&)); +SA(__is_same(__builtin_add_lvalue_reference(int*), int*&)); +SA(__is_same(__builtin_add_lvalue_reference(ClassType&), ClassType&)); +SA(__is_same(__builtin_add_lvalue_reference(ClassType), ClassType&)); +SA(__is_same(__builtin_add_lvalue_reference(int(int)), int(&)(int))); +SA(__is_same(__builtin_add_lvalue_reference(int&&), int&)); +SA(__is_same(__builtin_add_lvalue_reference(ClassType&&), ClassType&)); +SA(__is_same(__builtin_add_lvalue_reference(void), void)); +SA(__is_same(__builtin_add_lvalue_reference(const void), const void)); +SA(__is_same(__builtin_add_lvalue_reference(bool(int) const), bool(int) const)); +SA(__is_same(__builtin_add_lvalue_reference(bool(int) &), bool(int) &)); +SA(__is_same(__builtin_add_lvalue_reference(bool(int) const &&), bool(int) const &&)); +SA(__is_same(__builtin_add_lvalue_reference(bool(int)), bool(&)(int))); diff --git a/gcc/testsuite/g++.dg/ext/has-builtin-1.C b/gcc/testsuite/g++.dg/ext/has-builtin-1.C index 7ca80daf6d1..77c65f9c920 100644 --- a/gcc/testsuite/g++.dg/ext/has-builtin-1.C +++ b/gcc/testsuite/g++.dg/ext/has-builtin-1.C @@ -5,6 +5,9 @@ #if !__has_builtin (__builtin_addressof) # error "__has_builtin (__builtin_addressof) failed" #endif +#if !__has_builtin (__builtin_add_lvalue_reference) +# error "__has_builtin (__builtin_add_lvalue_reference) failed" +#endif #if !__has_builtin (__builtin_add_pointer) # error "__has_builtin (__builtin_add_pointer) failed" #endif -- 2.44.0