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Fri, 13 Oct 2023 14:18:33 -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 39DLC9cD009146 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 13 Oct 2023 14:18:32 -0700 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 v18 10/40] c++: Implement __is_unbounded_array built-in trait Date: Fri, 13 Oct 2023 14:04:06 -0700 Message-ID: <20231013211206.1215663-11-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231013211206.1215663-1-kmatsui@gcc.gnu.org> References: <20231011215049.1052142-1-kmatsui@gcc.gnu.org> <20231013211206.1215663-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: Sdb5-hV6AIBOlablbKpJk9ZluJ90Frrv X-Proofpoint-GUID: Sdb5-hV6AIBOlablbKpJk9ZluJ90Frrv X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-10-13_12,2023-10-12_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 phishscore=0 malwarescore=0 bulkscore=0 priorityscore=1501 mlxlogscore=775 suspectscore=0 adultscore=0 clxscore=1034 mlxscore=0 spamscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2309180000 definitions=main-2310130185 X-Spam-Status: No, score=-12.2 required=5.0 tests=BAYES_00, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SCC_10_SHORT_WORD_LINES, SCC_5_SHORT_WORD_LINES, 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1776997094718165190 X-GMAIL-MSGID: 1779676757892056163 This patch implements built-in trait for std::is_unbounded_array. gcc/cp/ChangeLog: * cp-trait.def: Define __is_unbounded_array. * cp-trait.gperf: Reflect cp-trait.def change. * cp-trait.h: Likewise. * constraint.cc (diagnose_trait_expr): Handle CPTK_IS_UNBOUNDED_ARRAY. * semantics.cc (trait_expr_value): Likewise. (finish_trait_expr): Likewise. gcc/testsuite/ChangeLog: * g++.dg/ext/has-builtin-1.C: Test existence of __is_unbounded_array. * g++.dg/ext/is_unbounded_array.C: New test. Signed-off-by: Ken Matsui --- gcc/cp/constraint.cc | 3 ++ gcc/cp/cp-trait.def | 1 + gcc/cp/cp-trait.gperf | 1 + gcc/cp/cp-trait.h | 42 ++++++++++--------- gcc/cp/semantics.cc | 4 ++ gcc/testsuite/g++.dg/ext/has-builtin-1.C | 3 ++ gcc/testsuite/g++.dg/ext/is_unbounded_array.C | 37 ++++++++++++++++ 7 files changed, 71 insertions(+), 20 deletions(-) create mode 100644 gcc/testsuite/g++.dg/ext/is_unbounded_array.C diff --git a/gcc/cp/constraint.cc b/gcc/cp/constraint.cc index 5e30a4a907a..751ac61b25a 100644 --- a/gcc/cp/constraint.cc +++ b/gcc/cp/constraint.cc @@ -3796,6 +3796,9 @@ diagnose_trait_expr (tree expr, tree args) case CPTK_IS_TRIVIALLY_COPYABLE: inform (loc, " %qT is not trivially copyable", t1); break; + case CPTK_IS_UNBOUNDED_ARRAY: + inform (loc, " %qT is not an unbounded array", t1); + break; case CPTK_IS_UNION: inform (loc, " %qT is not a union", t1); break; diff --git a/gcc/cp/cp-trait.def b/gcc/cp/cp-trait.def index 99bc05360b9..4e02f68e4a9 100644 --- a/gcc/cp/cp-trait.def +++ b/gcc/cp/cp-trait.def @@ -83,6 +83,7 @@ DEFTRAIT_EXPR (IS_TRIVIAL, "__is_trivial", 1) DEFTRAIT_EXPR (IS_TRIVIALLY_ASSIGNABLE, "__is_trivially_assignable", 2) DEFTRAIT_EXPR (IS_TRIVIALLY_CONSTRUCTIBLE, "__is_trivially_constructible", -1) DEFTRAIT_EXPR (IS_TRIVIALLY_COPYABLE, "__is_trivially_copyable", 1) +DEFTRAIT_EXPR (IS_UNBOUNDED_ARRAY, "__is_unbounded_array", 1) DEFTRAIT_EXPR (IS_UNION, "__is_union", 1) DEFTRAIT_EXPR (IS_VOLATILE, "__is_volatile", 1) DEFTRAIT_EXPR (REF_CONSTRUCTS_FROM_TEMPORARY, "__reference_constructs_from_temporary", 2) diff --git a/gcc/cp/cp-trait.gperf b/gcc/cp/cp-trait.gperf index fb162cac164..a894fc8c74c 100644 --- a/gcc/cp/cp-trait.gperf +++ b/gcc/cp/cp-trait.gperf @@ -63,6 +63,7 @@ struct cp_trait { "__is_trivially_assignable", CPTK_IS_TRIVIALLY_ASSIGNABLE, 2, false "__is_trivially_constructible", CPTK_IS_TRIVIALLY_CONSTRUCTIBLE, -1, false "__is_trivially_copyable", CPTK_IS_TRIVIALLY_COPYABLE, 1, false +"__is_unbounded_array", CPTK_IS_UNBOUNDED_ARRAY, 1, false "__is_union", CPTK_IS_UNION, 1, false "__is_volatile", CPTK_IS_VOLATILE, 1, false "__reference_constructs_from_temporary", CPTK_REF_CONSTRUCTS_FROM_TEMPORARY, 2, false diff --git a/gcc/cp/cp-trait.h b/gcc/cp/cp-trait.h index 526e63dec42..47060ffbbef 100644 --- a/gcc/cp/cp-trait.h +++ b/gcc/cp/cp-trait.h @@ -116,7 +116,7 @@ cp_trait_lookup::find (const char *str, size_t len) { enum { - TOTAL_KEYWORDS = 48, + TOTAL_KEYWORDS = 49, MIN_WORD_LENGTH = 7, MAX_WORD_LENGTH = 37, MIN_HASH_VALUE = 7, @@ -125,30 +125,32 @@ cp_trait_lookup::find (const char *str, size_t len) static const struct cp_trait wordlist[] = { -#line 76 "../../gcc/cp/cp-trait.gperf" +#line 77 "../../gcc/cp/cp-trait.gperf" {"__bases", CPTK_BASES, 1, true}, #line 50 "../../gcc/cp/cp-trait.gperf" {"__is_enum", CPTK_IS_ENUM, 1, false}, -#line 66 "../../gcc/cp/cp-trait.gperf" +#line 67 "../../gcc/cp/cp-trait.gperf" {"__is_union", CPTK_IS_UNION, 1, false}, -#line 70 "../../gcc/cp/cp-trait.gperf" - {"__remove_cv", CPTK_REMOVE_CV, 1, true}, #line 71 "../../gcc/cp/cp-trait.gperf" + {"__remove_cv", CPTK_REMOVE_CV, 1, true}, +#line 72 "../../gcc/cp/cp-trait.gperf" {"__remove_cvref", CPTK_REMOVE_CVREF, 1, true}, #line 49 "../../gcc/cp/cp-trait.gperf" {"__is_empty", CPTK_IS_EMPTY, 1, false}, #line 62 "../../gcc/cp/cp-trait.gperf" {"__is_trivial", CPTK_IS_TRIVIAL, 1, false}, -#line 72 "../../gcc/cp/cp-trait.gperf" +#line 73 "../../gcc/cp/cp-trait.gperf" {"__remove_reference", CPTK_REMOVE_REFERENCE, 1, true}, -#line 77 "../../gcc/cp/cp-trait.gperf" +#line 78 "../../gcc/cp/cp-trait.gperf" {"__direct_bases", CPTK_DIRECT_BASES, 1, true}, -#line 74 "../../gcc/cp/cp-trait.gperf" +#line 75 "../../gcc/cp/cp-trait.gperf" {"__underlying_type", CPTK_UNDERLYING_TYPE, 1, true}, -#line 67 "../../gcc/cp/cp-trait.gperf" +#line 68 "../../gcc/cp/cp-trait.gperf" {"__is_volatile", CPTK_IS_VOLATILE, 1, false}, -#line 73 "../../gcc/cp/cp-trait.gperf" +#line 74 "../../gcc/cp/cp-trait.gperf" {"__type_pack_element", CPTK_TYPE_PACK_ELEMENT, -1, true}, +#line 66 "../../gcc/cp/cp-trait.gperf" + {"__is_unbounded_array", CPTK_IS_UNBOUNDED_ARRAY, 1, false}, #line 59 "../../gcc/cp/cp-trait.gperf" {"__is_polymorphic", CPTK_IS_POLYMORPHIC, 1, false}, #line 53 "../../gcc/cp/cp-trait.gperf" @@ -161,9 +163,9 @@ cp_trait_lookup::find (const char *str, size_t len) {"__is_layout_compatible", CPTK_IS_LAYOUT_COMPATIBLE, 2, false}, #line 64 "../../gcc/cp/cp-trait.gperf" {"__is_trivially_constructible", CPTK_IS_TRIVIALLY_CONSTRUCTIBLE, -1, false}, -#line 69 "../../gcc/cp/cp-trait.gperf" +#line 70 "../../gcc/cp/cp-trait.gperf" {"__reference_converts_from_temporary", CPTK_REF_CONVERTS_FROM_TEMPORARY, 2, false}, -#line 68 "../../gcc/cp/cp-trait.gperf" +#line 69 "../../gcc/cp/cp-trait.gperf" {"__reference_constructs_from_temporary", CPTK_REF_CONSTRUCTS_FROM_TEMPORARY, 2, false}, #line 33 "../../gcc/cp/cp-trait.gperf" {"__has_nothrow_copy", CPTK_HAS_NOTHROW_COPY, 1, false}, @@ -219,21 +221,21 @@ cp_trait_lookup::find (const char *str, size_t len) {"__is_assignable", CPTK_IS_ASSIGNABLE, 2, false}, #line 61 "../../gcc/cp/cp-trait.gperf" {"__is_standard_layout", CPTK_IS_STD_LAYOUT, 1, false}, -#line 75 "../../gcc/cp/cp-trait.gperf" +#line 76 "../../gcc/cp/cp-trait.gperf" {"__is_deducible ", CPTK_IS_DEDUCIBLE, 2, false} }; static const signed char lookup[] = { -1, -1, -1, -1, -1, -1, -1, 0, -1, 1, 2, 3, -1, -1, - 4, 5, -1, 6, 7, 8, -1, -1, 9, 10, 11, -1, 12, 13, - 14, -1, 15, -1, 16, 17, -1, 18, -1, 19, 20, -1, 21, -1, - 22, -1, 23, 24, -1, 25, 26, 27, 28, -1, 29, -1, 30, 31, - -1, -1, 32, 33, 34, 35, -1, 36, 37, 38, 39, -1, 40, -1, - 41, -1, -1, -1, -1, 42, -1, -1, -1, -1, -1, -1, -1, -1, - -1, 43, -1, -1, 44, -1, 45, -1, -1, -1, -1, 46, -1, -1, + 4, 5, -1, 6, 7, 8, -1, -1, 9, 10, 11, 12, 13, 14, + 15, -1, 16, -1, 17, 18, -1, 19, -1, 20, 21, -1, 22, -1, + 23, -1, 24, 25, -1, 26, 27, 28, 29, -1, 30, -1, 31, 32, + -1, -1, 33, 34, 35, 36, -1, 37, 38, 39, 40, -1, 41, -1, + 42, -1, -1, -1, -1, 43, -1, -1, -1, -1, -1, -1, -1, -1, + -1, 44, -1, -1, 45, -1, 46, -1, -1, -1, -1, 47, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, 47 + -1, -1, -1, 48 }; if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH) diff --git a/gcc/cp/semantics.cc b/gcc/cp/semantics.cc index e1358afcb3f..0a2699be476 100644 --- a/gcc/cp/semantics.cc +++ b/gcc/cp/semantics.cc @@ -12217,6 +12217,9 @@ trait_expr_value (cp_trait_kind kind, tree type1, tree type2) case CPTK_IS_TRIVIALLY_COPYABLE: return trivially_copyable_p (type1); + case CPTK_IS_UNBOUNDED_ARRAY: + return array_of_unknown_bound_p (type1); + case CPTK_IS_UNION: return type_code1 == UNION_TYPE; @@ -12384,6 +12387,7 @@ finish_trait_expr (location_t loc, cp_trait_kind kind, tree type1, tree type2) case CPTK_IS_CONST: case CPTK_IS_ENUM: case CPTK_IS_SAME: + case CPTK_IS_UNBOUNDED_ARRAY: case CPTK_IS_UNION: case CPTK_IS_VOLATILE: break; diff --git a/gcc/testsuite/g++.dg/ext/has-builtin-1.C b/gcc/testsuite/g++.dg/ext/has-builtin-1.C index 645cabe088e..90997210c12 100644 --- a/gcc/testsuite/g++.dg/ext/has-builtin-1.C +++ b/gcc/testsuite/g++.dg/ext/has-builtin-1.C @@ -131,6 +131,9 @@ #if !__has_builtin (__is_trivially_copyable) # error "__has_builtin (__is_trivially_copyable) failed" #endif +#if !__has_builtin (__is_unbounded_array) +# error "__has_builtin (__is_unbounded_array) failed" +#endif #if !__has_builtin (__is_union) # error "__has_builtin (__is_union) failed" #endif diff --git a/gcc/testsuite/g++.dg/ext/is_unbounded_array.C b/gcc/testsuite/g++.dg/ext/is_unbounded_array.C new file mode 100644 index 00000000000..1307d24f5a5 --- /dev/null +++ b/gcc/testsuite/g++.dg/ext/is_unbounded_array.C @@ -0,0 +1,37 @@ +// { dg-do compile { target c++11 } } + +#include + +using namespace __gnu_test; + +#define SA(X) static_assert((X),#X) + +#define SA_TEST_CATEGORY(TRAIT, TYPE, EXPECT) \ + SA(TRAIT(TYPE) == EXPECT); \ + SA(TRAIT(const TYPE) == EXPECT); \ + SA(TRAIT(volatile TYPE) == EXPECT); \ + SA(TRAIT(const volatile TYPE) == EXPECT) + +SA_TEST_CATEGORY(__is_unbounded_array, int[2], false); +SA_TEST_CATEGORY(__is_unbounded_array, int[], true); +SA_TEST_CATEGORY(__is_unbounded_array, int[2][3], false); +SA_TEST_CATEGORY(__is_unbounded_array, int[][3], true); +SA_TEST_CATEGORY(__is_unbounded_array, float*[2], false); +SA_TEST_CATEGORY(__is_unbounded_array, float*[], true); +SA_TEST_CATEGORY(__is_unbounded_array, float*[2][3], false); +SA_TEST_CATEGORY(__is_unbounded_array, float*[][3], true); +SA_TEST_CATEGORY(__is_unbounded_array, ClassType[2], false); +SA_TEST_CATEGORY(__is_unbounded_array, ClassType[], true); +SA_TEST_CATEGORY(__is_unbounded_array, ClassType[2][3], false); +SA_TEST_CATEGORY(__is_unbounded_array, ClassType[][3], true); +SA_TEST_CATEGORY(__is_unbounded_array, IncompleteClass[2][3], false); +SA_TEST_CATEGORY(__is_unbounded_array, IncompleteClass[][3], true); +SA_TEST_CATEGORY(__is_unbounded_array, int(*)[2], false); +SA_TEST_CATEGORY(__is_unbounded_array, int(*)[], false); +SA_TEST_CATEGORY(__is_unbounded_array, int(&)[2], false); +SA_TEST_CATEGORY(__is_unbounded_array, int(&)[], false); + +// Sanity check. +SA_TEST_CATEGORY(__is_unbounded_array, ClassType, false); +SA_TEST_CATEGORY(__is_unbounded_array, IncompleteClass, false); +SA_TEST_CATEGORY(__is_unbounded_array, IncompleteUnion, false);