1 2019-11-15 Andrew Sutton <asutton@lock3software.com>
4 * pt.c (get_underlying_template): Exit loop if the original type
7 2019-11-19 Andrew Sutton <asutton@lock3software.com>
10 * pt.c (maybe_new_partial_specialization): Apply access to newly
11 created partial specializations. Update comment style.
13 2019-11-19 Andrew Sutton <asutton@lock3software.com>
16 * pt.c (maybe_new_partial_specialization): Apply access to newly
17 created partial specializations. Update comment style.
19 2019-11-19 Andrew Sutton <asutton@lock3software.com>
22 Suppress diagnostics substituting into a requires-expression.
23 * pt.c (tsubst_copy_and_build): Perform the first substitution without
24 diagnostics and a second only if tsubst_requries_expr returns an error.
26 2019-11-19 Jakub Jelinek <jakub@redhat.com>
29 * semantics.c (handle_omp_for_class_iterator): Don't call
30 cp_fully_fold on cond.
32 2019-11-18 Paolo Carlini <paolo.carlini@oracle.com>
34 * typeck.c (cp_build_addr_expr_1): Use cp_expr_loc_or_input_loc
36 (cxx_sizeof_expr): Use it in one additional place.
37 (cxx_alignof_expr): Likewise.
38 (lvalue_or_else): Likewise.
40 2019-11-18 Marek Polacek <polacek@redhat.com>
42 PR c++/91962 - ICE with reference binding and qualification conversion.
43 * call.c (convert_like_real) <case ck_ref_bind>: Check need_temporary_p.
45 2019-11-17 Jakub Jelinek <jakub@redhat.com>
47 * method.c (lookup_comparison_result): Use %qD instead of %<%T::%D%>
49 (lookup_comparison_category): Use %qD instead of %<std::%D%> to print
52 2019-11-15 Paolo Carlini <paolo.carlini@oracle.com>
54 * typeck.c (cp_truthvalue_conversion): Add tsubst_flags_t parameter
55 and use it in calls; also pass the location_t of the expression to
56 cp_build_binary_op and c_common_truthvalue_conversion.
57 * rtti.c (build_dynamic_cast_1): Adjust call.
58 * cvt.c (ocp_convert): Likewise.
59 * cp-gimplify.c (cp_fold): Likewise.
60 * cp-tree.h (cp_truthvalue_conversion): Update declaration.
62 2019-11-14 Jason Merrill <jason@redhat.com>
64 Implement P1816R0, class template argument deduction for aggregates.
65 * pt.c (maybe_aggr_guide, collect_ctor_idx_types): New.
66 (is_spec_or_derived): Split out from do_class_deduction.
67 (build_deduction_guide): Handle aggregate guide.
68 * class.c (finish_struct): Set CLASSTYPE_NON_AGGREGATE in a
70 * cp-tree.h (CP_AGGREGATE_TYPE_P): An incomplete class is not an
73 2019-11-14 Richard Sandiford <richard.sandiford@arm.com>
75 * call.c (build_conditional_expr_1): Use truth_type_for instead
76 of build_same_sized_truth_vector_type.
77 * typeck.c (build_vec_cmp): Likewise.
79 2019-11-14 Jakub Jelinek <jakub@redhat.com>
81 * parser.c (cp_parser_omp_context_selector): Don't require score
82 argument to fit into shwi, just to be INTEGER_CST. Diagnose
84 * pt.c (tsubst_attribute): Likewise.
86 * parser.c (cp_parser_omp_context_selector): Rename
87 CTX_PROPERTY_IDLIST to CTX_PROPERTY_NAME_LIST, add CTX_PROPERTY_ID.
88 Use CTX_PROPERTY_ID for atomic_default_mem_order, only allow a single
89 identifier in that. For CTX_PROPERTY_NAME_LIST, allow identifiers
91 * pt.c (tsubst_attribute): Fix up STRING_CST handling if allow_string.
93 2019-11-13 Marek Polacek <polacek@redhat.com>
95 PR c++/89070 - bogus [[nodiscard]] warning in SFINAE.
96 * cvt.c (convert_to_void): Guard maybe_warn_nodiscard calls with
99 2019-11-13 Richard Sandiford <richard.sandiford@arm.com>
102 * cp-tree.h (STF_STRIP_DEPENDENT): New constant.
103 * tree.c (strip_typedefs): Add STF_STRIP_DEPENDENT to the flags
104 when calling strip_typedefs recursively on a DECL_ORIGINAL_TYPE.
105 Don't apply the fix for DR1558 in that case; allow aliases with
106 dependent template parameters to be stripped instead.
108 2019-11-12 Nathan Sidwell <nathan@acm.org>
110 * name-lookup.c (lookup_using_decl): New function, merged from ...
111 (do_class_using_decl): ... here. Call it. And ...
112 (finish_nonmember_using_decl): ... here. Call it.
114 2019-11-12 Martin Liska <mliska@suse.cz>
116 * name-lookup.c: Do not include params.h.
117 * typeck.c: Likewise.
119 2019-11-12 Martin Liska <mliska@suse.cz>
121 * name-lookup.c (namespace_hints::namespace_hints): Replace old
122 parameter syntax with the new one, include opts.h if needed. Use
123 SET_OPTION_IF_UNSET macro.
124 * typeck.c (comptypes): Likewise.
126 2019-11-12 Maciej W. Rozycki <macro@codesourcery.com>
127 Frederik Harwath <frederik@codesourcery.com>
130 * constexpr.c (potential_constant_expression_1): Handle
132 * parser.c (OACC_SERIAL_CLAUSE_MASK): New macro.
133 (cp_parser_oacc_kernels_parallel): Rename function to...
134 (cp_parser_oacc_compute): ... this. Handle PRAGMA_OACC_SERIAL.
135 (cp_parser_omp_construct): Update accordingly.
136 (cp_parser_pragma): Handle PRAGMA_OACC_SERIAL. Fix alphabetic
138 * pt.c (tsubst_expr): Handle OACC_SERIAL.
140 2019-11-11 Jason Merrill <jason@redhat.com>
142 Implement P1946R0, Allow defaulting comparisons by value.
143 * method.c (early_check_defaulted_comparison): Accept by-value,
144 reject mixed by-value and by-reference parms.
145 * decl.c (grokdeclarator): Set funcdef_flag for defaulted friend.
146 * decl2.c (grokfield): Don't SET_DECL_FRIEND_CONTEXT.
148 * typeck.c (cp_build_binary_op): Sorry about <=> on VECTOR_TYPE.
150 2019-11-11 Jakub Jelinek <jakub@redhat.com>
153 * decl.c (finish_function): Move ctype initialization before
154 DECL_DELETED_FN handling.
156 * semantics.c (finish_translation_unit): Diagnose declare target
157 without corresponding end declare target.
159 2019-11-10 Jason Merrill <jason@redhat.com>
161 Implement D1957R0, T* to bool should be considered narrowing.
162 * typeck2.c (check_narrowing): Treat pointer->bool as a narrowing
163 conversion with -std=c++2a.
165 2019-11-08 Marek Polacek <polacek@redhat.com>
167 PR c++/92215 - flawed diagnostic for bit-field with non-integral type.
168 * parser.c (cp_parser_member_declaration): Add a diagnostic for
169 bit-fields with non-integral types.
171 2019-11-08 Jakub Jelinek <jakub@redhat.com>
173 * init.c (build_vec_delete_1): Fix a comment typo - mist -> must.
175 2019-11-07 Jason Merrill <jason@redhat.com>
177 Implement D1959R0, remove weak_equality and strong_equality.
178 * method.c (enum comp_cat_tag, comp_cat_info): Remove *_equality.
179 (genericize_spaceship, common_comparison_type): Likewise.
180 * typeck.c (cp_build_binary_op): Move SPACESHIP_EXPR to be with the
181 relational operators, exclude other types no longer supported.
183 2019-11-06 Jason Merrill <jason@redhat.com>
185 Implement D1907R1 "structural type".
186 * tree.c (structural_type_p): New.
187 * pt.c (invalid_nontype_parm_type_p): Use it.
188 * class.c (build_base_field_1): Take binfo. Copy TREE_PRIVATE.
189 (build_base_field): Pass binfo.
191 PR c++/92150 - partial specialization with class NTTP.
192 * pt.c (unify): Handle VIEW_CONVERT_EXPR.
194 * pt.c (use_pack_expansion_extra_args_p): Still do substitution if
195 all packs are simple pack expansions.
196 (add_extra_args): Check that the extra args aren't dependent.
198 2019-11-06 Andrew Sutton <asutton@lock3software.com>
200 Use satisfaction with nested requirements.
201 * constraint.cc (build_parameter_mapping): Use
202 current_template_parms when the declaration is not available.
203 (norm_info::norm_info) Make explicit.
204 (normalize_constraint_expression): Factor into a separate overload
205 that takes arguments, and use that in the original function.
206 (tsubst_nested_requirement): Use satisfy_constraint instead of
207 trying to evaluate this as a constant expression.
208 (finish_nested_requirement): Keep the normalized constraint and the
209 original normalization arguments with the requirement.
210 (diagnose_nested_requirement): Use satisfy_constraint. Tentatively
211 implement more comprehensive diagnostics, but do not enable.
212 * parser.c (cp_parser_requires_expression): Relax requirement that
213 requires-expressions can live only inside templates.
214 * pt.c (any_template_parm_r): Look into type of PARM_DECL.
216 2019-11-06 Jason Merrill <jason@redhat.com>
218 C++20 NB CA378 - Remove constrained non-template functions.
219 * decl.c (grokfndecl): Reject constraints on non-templated function.
221 2019-11-06 Matthias Kretz <m.kretz@gsi.de>
223 * parser.c (cp_parser_operator): Parse operator?: as an
224 attempt to overload the conditional operator.
226 2019-11-05 Jason Merrill <jason@redhat.com>
228 Implement C++20 operator<=>.
229 * cp-tree.h (struct lang_decl_fn): Add maybe_deleted bitfield.
230 (DECL_MAYBE_DELETED): New.
231 (enum special_function_kind): Add sfk_comparison.
232 (LOOKUP_REWRITTEN, LOOKUP_REVERSED): New.
233 * call.c (struct z_candidate): Add rewritten and reversed methods.
234 (add_builtin_candidate): Handle SPACESHIP_EXPR.
235 (add_builtin_candidates): Likewise.
236 (add_candidates): Don't add a reversed candidate if the parms are
238 (add_operator_candidates): Split out from build_new_op_1. Handle
239 rewritten and reversed candidates.
240 (add_candidate): Swap conversions of reversed candidate.
241 (build_new_op_1): Swap them back. Build a second operation for
242 rewritten candidates.
243 (extract_call_expr): Handle rewritten calls.
244 (same_fn_or_template): New.
245 (joust): Handle rewritten and reversed candidates.
246 * class.c (add_implicitly_declared_members): Add implicit op==.
247 (classtype_has_op, classtype_has_defaulted_op): New.
248 * constexpr.c (cxx_eval_binary_expression): Handle SPACESHIP_EXPR.
249 (cxx_eval_constant_expression, potential_constant_expression_1):
251 * cp-gimplify.c (genericize_spaceship): New.
252 (cp_genericize_r): Use it.
253 * cp-objcp-common.c (cp_common_init_ts): Handle SPACESHIP_EXPR.
254 * decl.c (finish_function): Handle deleted function.
255 * decl2.c (grokfield): SET_DECL_FRIEND_CONTEXT on defaulted friend.
256 (mark_used): Check DECL_MAYBE_DELETED. Remove assumption that
257 defaulted functions are non-static members.
258 * error.c (dump_expr): Handle SPACESHIP_EXPR.
259 * method.c (type_has_trivial_fn): False for sfk_comparison.
260 (enum comp_cat_tag, struct comp_cat_info_t): New types.
261 (comp_cat_cache): New array variable.
262 (lookup_comparison_result, lookup_comparison_category)
263 (is_cat, cat_tag_for, spaceship_comp_cat)
264 (spaceship_type, genericize_spaceship)
265 (common_comparison_type, early_check_defaulted_comparison)
266 (comp_info, build_comparison_op): New.
267 (synthesize_method): Handle sfk_comparison. Handle deleted.
268 (get_defaulted_eh_spec, maybe_explain_implicit_delete)
269 (explain_implicit_non_constexpr, implicitly_declare_fn)
270 (defaulted_late_check, defaultable_fn_check): Handle sfk_comparison.
271 * name-lookup.c (get_std_name_hint): Add comparison categories.
272 * tree.c (special_function_p): Add sfk_comparison.
273 * typeck.c (cp_build_binary_op): Handle SPACESHIP_EXPR.
275 2019-11-05 Tim van Deurzen <tim@kompiler.org>
277 Add new tree code for the spaceship operator.
278 * cp-tree.def: Add new tree code.
279 * operators.def: New binary operator.
280 * parser.c: Add new token and tree code.
282 2019-09-15 Jason Merrill <jason@redhat.com>
284 * call.c (build_new_op_1): Don't apply any standard conversions to
285 the operands of a built-in operator. Don't suppress conversions in
287 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
289 2019-11-04 Jason Merrill <jason@redhat.com>
291 Use vec instead of raw array for built-in candidates.
292 * call.c (build_builtin_candidate): Take args in a vec.
293 (add_builtin_candidate, add_builtin_candidates): Likewise.
294 (build_conditional_expr_1, build_new_op_1): Adjust.
296 2019-11-04 Jason Merrill <jason@redhat.com>
298 * constexpr.c (explain_invalid_constexpr_fn): Show location of fn.
300 * pt.c (maybe_instantiate_noexcept): Only update clones if we
303 * typeck.c (contextual_conv_bool): New.
305 * name-lookup.c (lookup_qualified_name): Add wrapper overload taking
306 C string rather than identifier.
307 * parser.c (cp_parser_userdef_numeric_literal): Use it.
308 * rtti.c (emit_support_tinfos): Use it.
309 * cp-tree.h (ovl_op_identifier): Change to inline functions.
310 (build_x_binary_op): Add wrapper with fewer parms.
312 2019-11-05 Jason Merrill <jason@redhat.com>
314 * decl2.c (mark_used): Diagnose use of a function with unsatisfied
316 * typeck.c (cp_build_function_call_vec): Not here.
318 2019-11-05 Nathan Sidwell <nathan@acm.org>
321 * parser.c (cp_parser_error_1): Check EOF and UNKNOWN_LOCATION
322 when skipping over version control marker.
324 2019-11-05 Jakub Jelinek <jakub@redhat.com>
327 * constexpr.c (potential_constant_expression_1): Return true rather
328 than false for PREDICT_EXPR.
330 * decl.c (omp_declare_variant_finalize_one): Call
331 declare_simd_adjust_this not just on the context, but also on the
332 variant-id expression for methods. Don't call
333 cp_get_callee_fndecl_nofold, call cp_get_callee and only if it is
334 safe cp_get_fndecl_from_callee. Don't try to print as %qD
336 * pt.c (tsubst_attribute): Handle "omp declare variant base"
338 (tsubst_function_decl): Call omp_declare_variant_finalize
339 if there are any "omp declare variant base" attributes left.
341 2019-11-04 Kamlesh Kumar <kamleshbhalui@gmail.com>
343 PR c++/91979 - mangling nullptr expression
344 * mangle.c (write_template_arg_literal): Handle nullptr
347 2019-11-04 Jason Merrill <jason@redhat.com>
349 * typeck.c (check_return_expr): Avoid redundant error.
351 2019-11-02 Paolo Carlini <paolo.carlini@oracle.com>
353 * typeck.c (composite_pointer_type): Add a const op_location_t&
354 parameter and use it in diagnostics.
355 (composite_pointer_error): Likewise.
356 (composite_pointer_type_r): Add a const op_location_t&
357 parameter and forward it.
358 (cp_build_binary_op): Adjust calls.
359 (common_pointer_type): Likewise.
360 * call.c (add_builtin_candidate): Likewise.
361 (build_conditional_expr_1): Likewise.
362 * cp-tree.h (composite_pointer_type): Update declaration.
364 * typeck.c (cxx_sizeof_expr): Use cp_expr_loc_or_input_loc
366 (cxx_alignof_expr): Likewise.
367 (lvalue_or_else): Likewise.
369 2019-11-02 Jakub Jelinek <jakub@redhat.com>
371 * decl.c (omp_declare_variant_finalize_one): Use
372 omp_get_context_selector instead of c_omp_get_context_selector.
375 * parser.c (cp_parser_decl_specifier_seq): Don't parse attributes
376 if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR.
378 PR c++/88335 - Implement P1073R3: Immediate functions
379 * cp-tree.h (struct lang_decl_fn): Add immediate_fn_p bit.
380 (DECL_IMMEDIATE_FUNCTION_P, SET_DECL_IMMEDIATE_FUNCTION_P): Define.
381 (enum cp_decl_spec): Add ds_consteval.
382 (fold_non_dependent_expr): Add another tree argument defaulted to
384 * name-lookup.h (struct cp_binding_level): Add immediate_fn_ctx_p
386 * parser.c (cp_keyword_starts_decl_specifier_p): Adjust comments
387 for C++11 and C++20 specifiers. Handle RID_CONSTEVAL.
388 (CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR): Adjust comment.
389 (CP_PARSER_FLAGS_CONSTEVAL): New.
390 (cp_parser_skip_balanced_tokens): New forward declaration.
391 (cp_parser_lambda_declarator_opt): Handle ds_consteval. Set
392 current_binding_level->immediate_fn_ctx_p before parsing parameter
393 list if decl-specifier-seq contains consteval specifier.
394 (cp_parser_decl_specifier_seq): Handle RID_CONSTEVAL.
395 (cp_parser_explicit_instantiation): Diagnose explicit instantiation
396 with consteval specifier.
397 (cp_parser_init_declarator): For consteval or into flags
398 CP_PARSER_FLAGS_CONSTEVAL.
399 (cp_parser_direct_declarator): If CP_PARSER_FLAGS_CONSTEVAL, set
400 current_binding_level->immediate_fn_ctx_p in the sk_function_parms
402 (set_and_check_decl_spec_loc): Add consteval entry, formatting fix.
403 * call.c (build_addr_func): For direct calls to immediate functions
404 use build_address rather than decay_conversion.
405 (build_over_call): Evaluate immediate function invocations.
406 * error.c (dump_function_decl): Handle DECL_IMMEDIATE_FUNCTION_P.
407 * semantics.c (expand_or_defer_fn_1): Use tentative linkage and don't
408 call mark_needed for immediate functions.
409 * typeck.c (cxx_sizeof_or_alignof_expr): Likewise. Formatting fix.
410 (cp_build_addr_expr_1): Reject taking address of immediate function
411 outside of immediate function.
412 * decl.c (validate_constexpr_redeclaration): Diagnose consteval
413 vs. non-consteval or vice versa redeclaration. Use
414 SET_DECL_IMMEDIATE_FUNCTION_P if new_decl is immediate function.
415 (check_tag_decl): Use %qs with keyword string to simplify translation.
417 (start_decl): Adjust diagnostics for static or thread_local variables
418 in immediate functions.
419 (grokfndecl): Call sorry_at on virtual consteval. Use %qs with keyword
420 to string to simplify translation. Diagnose consteval main. Use
421 SET_DECL_IMMEDIATE_FUNCTION_P for consteval.
422 (grokdeclarator): Handle consteval. Use %qs with keyword strings to
423 simplify translation. Use separate ifs instead of chained else if
424 for invalid specifiers. For constinit clear constinit_p rather than
426 * constexpr.c (find_immediate_fndecl): New function.
427 (cxx_eval_outermost_constant_expr): Allow consteval calls returning
428 void. Diagnose returning address of immediate function from consteval
430 (fold_non_dependent_expr_template): Add OBJECT argument, pass it
431 through to cxx_eval_outermost_constant_expr.
432 (fold_non_dependent_expr): Add OBJECT argument, pass it through to
433 fold_non_dependent_expr_template.
434 (fold_non_dependent_init): Adjust fold_non_dependent_expr_template
436 * method.c (defaulted_late_check): Adjust diagnostics for consteval.
437 * lambda.c (maybe_add_lambda_conv_op): Copy over
438 DECL_DECLARED_CONSTEXPR_P and DECL_IMMEDIATE_FUNCTION_P bits from
439 callop to both artificial functions.
440 * init.c (build_value_init): Don't do further processing if
441 build_special_member_call returned a TREE_CONSTANT. Formatting fix.
443 PR c++/91369 - Implement P0784R7: constexpr new
444 * cp-tree.h (CALL_FROM_NEW_OR_DELETE_P): Define.
445 * init.c (build_new_1, build_vec_delete_1, build_delete): Set
446 CALL_FROM_NEW_OR_DELETE_P on the CALL_EXPR to allocator functions.
447 * constexpr.c (is_std_allocator_allocate): Only allow
448 global replaceable allocator functions if CALL_FROM_NEW_OR_DELETE_P
449 or in std::allocate<T>::{,de}allocate.
450 (potential_constant_expression_1): Likewise.
452 2019-11-01 Nathan Sidwell <nathan@acm.org>
454 * class.c (check_field_decls): Refactor.
456 2019-10-31 Jakub Jelinek <jakub@redhat.com>
459 * cp-tree.h (type_initializer_zero_p): Declare.
460 * decl.c (reshape_init_array_1): Formatting fix.
461 * tree.c (type_initializer_zero_p): New function. Moved from
462 ../tree.c, use next_initializable_field, formatting fix. Return
463 false for TYPE_NON_AGGREGATE_CLASS types.
465 2019-10-30 Jason Merrill <jason@redhat.com>
467 PR c++/92268 - hard error satisfying return-type-requirement
468 * constraint.cc (type_deducible_p): Check for substitution failure.
469 (diagnose_compound_requirement): Adjust diagnostic.
470 * pt.c (do_auto_deduction): Don't pass cargs to
471 constraints_satisfied_p.
473 2019-10-30 Jakub Jelinek <jakub@redhat.com>
475 PR c++/91369 - Implement P0784R7: constexpr new
476 * constexpr.c (cxx_replaceable_global_alloc_fn): Don't return true
478 (cxx_placement_new_fn, is_std_construct_at): New functions.
479 (cxx_eval_call_expression): Allow placement new in std::construct_at.
480 (potential_constant_expression_1): Likewise.
482 * typeck.c (decl_in_std_namespace_p): Return true also for decls
483 in inline namespaces inside of std namespace.
485 2019-10-30 Bernd Edlinger <bernd.edlinger@hotmail.de>
488 * name-lookup.c (check_local_shadow): Shadowing TYPE_DECLs
489 is always a -Wshadow=compatible-local warning, unless
492 2019-10-30 Jason Merrill <jason@redhat.com>
494 * cxx-pretty-print.c (get_fold_operator): Use OVL_OP_INFO.
496 2019-10-30 Marek Polacek <polacek@redhat.com>
498 PR c++/92134 - constinit malfunction in static data member.
499 * decl2.c (grokfield): Set LOOKUP_CONSTINIT.
501 2019-10-30 Jakub Jelinek <jakub@redhat.com>
503 * cp-tree.h (omp_declare_variant_finalize, build_local_temp): Declare.
504 * decl.c: Include omp-general.h.
505 (declare_simd_adjust_this): Add forward declaration.
506 (omp_declare_variant_finalize_one, omp_declare_variant_finalize): New
508 (cp_finish_decl, finish_function): Call omp_declare_variant_finalize.
509 * parser.c (cp_finish_omp_declare_variant): Adjust parsing of the
510 variant id-expression and propagate enough information to
511 omp_declare_variant_finalize_one in the attribute so that it can
513 * class.c (finish_struct): Call omp_declare_variant_finalize.
514 * tree.c (build_local_temp): No longer static, remove forward
517 2019-10-30 Paolo Carlini <paolo.carlini@oracle.com>
519 * typeck.c (cp_build_modify_expr): Prefer error + inform to
520 error + error in one place.
521 (get_delta_difference_1): Likewise.
522 (get_delta_difference): Likewise, in two places.
524 2019-10-29 Paolo Carlini <paolo.carlini@oracle.com>
526 * typeck.c (build_x_unary_op): Use the location_t argument in
529 2019-10-29 Marek Polacek <polacek@redhat.com>
531 PR c++/90998 - ICE with copy elision in init by ctor and -Wconversion.
532 * call.c (joust): Don't attempt to warn if ->second_conv is null.
534 2019-10-29 Jakub Jelinek <jakub@redhat.com>
537 * cp-gimplify.c (cp_gimplify_expr): If gimplify_to_rvalue changes the
538 function pointer type, re-add cast to the original one.
540 2019-10-29 Marek Polacek <polacek@redhat.com>
542 PR c++/91548 - fix detecting modifying const objects for ARRAY_REF.
543 * constexpr.c (cxx_eval_store_expression): Don't call
544 modifying_const_object_p for ARRAY_REF.
546 2019-10-29 Richard Sandiford <richard.sandiford@arm.com>
548 * cp-objcp-common.h (cxx_simulate_enum_decl): Declare.
549 (LANG_HOOKS_SIMULATE_ENUM_DECL): Define to the above.
550 * decl.c (cxx_simulate_enum_decl): New function.
552 2019-10-29 Richard Sandiford <richard.sandiford@arm.com>
554 * cp-tree.h (cxx_simulate_builtin_function_decl): Declare.
555 * decl.c (cxx_simulate_builtin_function_decl): New function.
556 * cp-objcp-common.h (LANG_HOOKS_SIMULATE_BUILTIN_FUNCTION_DECL):
559 2019-10-28 Martin Sebor <msebor@redhat.com>
562 * cp-objcp-common.c (names_builtin_p): Define new function.
564 2019-10-28 Nathan Sidwell <nathan@acm.org>
566 * parser.h (struct cp_token): Drop {ENUM,BOOL}_BITFIELD C-ism.
567 Add tree_check_p flag, use as nested union discriminator.
568 (struct cp_lexer): Add saved_type & saved_keyword fields.
569 * parser.c (eof_token): Delete.
570 (cp_lexer_new_main): Always init last_token to last token of
572 (cp_lexer_new_from_tokens): Overlay EOF token at end of range.
573 (cp_lexer_destroy): Restore token under the EOF.
574 (cp_lexer_previous_token_position): No check for eof_token here.
575 (cp_lexer_get_preprocessor_token): Clear tree_check_p.
576 (cp_lexer_peek_nth_token): Check CPP_EOF not eof_token.
577 (cp_lexer_consume_token): Assert not CPP_EOF, no check for
579 (cp_lexer_purge_token): Likewise.
580 (cp_lexer_purge_tokens_after): No check for EOF token.
581 (cp_parser_nested_name_specifier, cp_parser_decltype)
582 (cp_parser_template_id): Set tree_check_p.
584 2019-10-24 Jakub Jelinek <jakub@redhat.com>
586 * decl2.c (cplus_decl_attributes): Add "omp declare target block"
587 attribute in between declare target and end declare target
590 * call.c (convert_arg_to_ellipsis): Add missing space in string
593 2019-10-24 Marek Polacek <polacek@redhat.com>
595 * decl.c (reshape_init_r): Add missing space.
597 2019-10-24 Nathan Sidwell <nathan@acm.org>
599 * pt.c (reduce_template_parm_level): Attach the new TPI to the new
601 (convert_generic_types_to_packs): Pass the copied type to
602 reduce_templatE_parm_level.
604 2019-10-23 Nathan Sidwell <nathan@acm.org>
606 * cp-tree.c (CPTI_STD_IDENTIFIER): Delete.
607 (std_identifier): Delete.
608 (DECL_NAME_SPACE_STD_P): Compare against std_node.
609 * decl.c (initialize_predefined_identifiers): 'std' is not needed.
610 (cxx_init_decl_processing): Adjust creation of ::std. Use
611 {push,pop}_nested_namespace.
612 (cxx_builtin_function): Use {push,pop}_nested_namespace.
613 * except.c (init_exception_processing): Likewise.
614 * rtti.c (init_rtti_processing): Likewise.
616 2019-10-23 Jason Merrill <jason@redhat.com>
618 Implement P1286R2, Contra CWG1778
619 * method.c (defaulted_late_check): Don't check explicit
620 exception-specification on defaulted function.
621 (after_nsdmi_defaulted_late_checks): Remove.
622 * parser.h (struct cp_unparsed_functions_entry): Remove classes.
623 * parser.c (unparsed_classes): Remove.
624 (push_unparsed_function_queues, cp_parser_class_specifier_1):
627 2019-10-23 Jakub Jelinek <jakub@redhat.com>
629 * constexpr.c (cxx_eval_constant_expression) <case CLEANUP_STMT>:
630 Temporarily change input_location to CLEANUP_STMT location.
632 2019-10-22 Jakub Jelinek <jakub@redhat.com>
634 PR tree-optimization/85887
635 * decl.c (expand_static_init): Drop ECF_LEAF from __cxa_guard_acquire
636 and __cxa_guard_release.
638 2019-10-22 Marc Glisse <marc.glisse@inria.fr>
641 * constexpr.c (cxx_eval_builtin_function_call): Only set
642 force_folding_builtin_constant_p if manifestly_const_eval.
644 2019-10-22 Richard Sandiford <richard.sandiford@arm.com>
646 * cp-tree.h (STF_USER_VISIBLE): New constant.
647 (strip_typedefs, strip_typedefs_expr): Take a flags argument.
648 * tree.c (strip_typedefs, strip_typedefs_expr): Likewise,
649 updating mutual calls accordingly. When STF_USER_VISIBLE is true,
650 only look through typedefs if user_facing_original_type_p.
651 * error.c (dump_template_bindings, type_to_string): Pass
652 STF_USER_VISIBLE to strip_typedefs.
653 (dump_type): Likewise, unless pp_c_flag_gnu_v3 is set.
655 2019-10-21 Kamlesh Kumar <kamleshbhalui@gmail.com>
656 Jason Merrill <jason@redhat.com>
658 PR c++/83534 - typeinfo of noexcept function
659 * rtti.c (get_tinfo_decl_dynamic): Do not call
660 TYPE_MAIN_VARIANT for function.
661 (get_typeid): Likewise.
663 2019-10-21 Paolo Carlini <paolo.carlini@oracle.com>
665 * parser.c (cp_parser_class_head): Improve error recovery upon
666 extra qualification error.
668 2019-10-21 Jakub Jelinek <jakub@redhat.com>
671 * constexpr.c (cxx_eval_component_reference, cxx_eval_bit_field_ref):
672 Use STRIP_ANY_LOCATION_WRAPPER on CONSTRUCTOR elts.
674 2019-10-21 Marek Polacek <polacek@redhat.com>
676 PR c++/92062 - ODR-use ignored for static member of class template.
677 * pt.c (has_value_dependent_address): Strip location wrappers.
679 2019-10-21 Marek Polacek <polacek@redhat.com>
681 PR c++/92106 - ICE with structured bindings and -Wreturn-local-addr.
682 * typeck.c (maybe_warn_about_returning_address_of_local): Avoid
683 recursing on null initializer and return false instead.
685 2019-10-17 JeanHeyd Meneide <phdofthehouse@gmail.com>
687 Implement p1301 [[nodiscard("should have a reason")]] + p1771 DR
688 * tree.c (handle_nodiscard_attribute): Handle C++2a nodiscard
690 (std_attribute_table) Increase nodiscard argument handling
691 max_length from 0 to 1.
692 * parser.c (cp_parser_check_std_attribute): Add requirement
693 that nodiscard only be seen once in attribute-list.
694 (cp_parser_std_attribute): Check that empty parenthesis lists are
695 not specified for attributes that have max_length > 0 (e.g.
697 * cvt.c (maybe_warn_nodiscard): Add nodiscard message to
698 output, if applicable.
699 (convert_to_void): Allow constructors to be nodiscard-able (P1771).
701 2019-10-18 Nathan Sidwell <nathan@acm.org>
703 * cp-tree.h (struct lang_type): Remove was_anonymous.
704 (TYPE_WAS_UNNAMED): Implement by checking TYPE_DECL &
706 * decl.c (name_unnamed_type): Don't set TYPE_WAS_UNNAMED.
708 2019-10-17 Paolo Carlini <paolo.carlini@oracle.com>
710 * decl.c (grokfndecl): Remove redundant use of in_system_header_at.
711 (compute_array_index_type_loc): Likewise.
712 (grokdeclarator): Likewise.
713 * error.c (cp_printer): Likewise.
714 * lambda.c (add_default_capture): Likewise.
715 * parser.c (cp_parser_primary_expression): Likewise.
716 (cp_parser_selection_statement): Likewise.
717 (cp_parser_toplevel_declaration): Likewise.
718 (cp_parser_enumerator_list): Likewise.
719 (cp_parser_using_declaration): Likewise.
720 (cp_parser_member_declaration): Likewise.
721 (cp_parser_exception_specification_opt): Likewise.
722 (cp_parser_std_attribute_spec): Likewise.
723 * pt.c (do_decl_instantiation): Likewise.
724 (do_type_instantiation): Likewise.
725 * typeck.c (cp_build_unary_op): Likewise.
727 * decl.c (check_tag_decl): Pass to in_system_header_at the same
728 location used for the permerror.
729 (grokdeclarator): Likewise.
731 * decl.c (check_tag_decl): Use locations[ds_typedef] in error_at.
733 2019-10-17 Jason Merrill <jason@redhat.com>
735 * cp-gimplify.c (cp_gimplify_expr): Use get_initialized_tmp_var.
736 (gimplify_to_rvalue): Remove default NULL argument.
738 2019-10-17 Nathan Sidwell <nathan@acm.org>
740 * decl.c (builtin_function_1): Merge into ...
741 (cxx_builtin_function): ... here. Nadger the decl before maybe
742 copying it. Set the context.
743 (cxx_builtin_function_ext_scope): Push to top level, then call
744 cxx_builtin_function.
746 2019-10-16 Luis Machado <luis.machado@linaro.org>
748 * cp-gimplify.c: Fix reference to non-existing tree-gimple.c file.
750 2019-10-16 Jakub Jelinek <jakub@redhat.com>
752 * decl.c (cxx_maybe_build_cleanup): When clearing location of cleanup,
753 if cleanup is a nop, clear location of its operand too.
755 2019-10-15 Andrew Sutton <asutton@lock3software.com>
757 Finish moving constraint and logic functionality of out pt.c.
758 Reimplement and re-enable subsumption caching.
760 * config-lang.in (gtfiles): Add logic.cc.
761 * constraint.cc (atomic_constraints_identical_p): Add assertions.
762 (hash_atomic_constraint): Likewise.
763 (constraints_equivalent_p): New.
764 (inchash::add_constraint): New.
765 (iterative_hash_constraint): New.
766 (decl_constraints): Moved from pt.c.
767 (get_constraints): Likewise.
768 (set_constraints): Likewise.
769 (remove_constraints): Likewise.
770 * cp-tree.h (CONSTR_P): New.
771 (init_constraint_processing): Remove.
772 (constraints_equivalent_p, iterative_hash_constraint): Declare.
773 * decl.c (cxx_init_decl_processing): Don't initialize constraints.
774 * logic.cc (subsumption_entry): Moved from pt.c.
775 (subsumption_hasher): Likewise.
776 (subsumption_cache): Likewise.
777 (lookup_subsumption): Likewise.
778 (save_subsumption): Likewise.
779 (subsumes_constraints_nonnull): Use subsumption cache.
780 * pt.c: Move aforementioned declarations out of this file.
781 (init_constraint_processing): Remove.
783 2019-10-15 Andrew Sutton <asutton@lock3software.com>
785 * parser.c (cp_parser_constructor_declarator_p): Pass an empty
786 decl-specifier-seq to make sure we parse type constraints as part
789 2019-10-15 Nathan Sidwell <nathan@acm.org>
791 * class.c (build_clones): Break out of clone_function_decl. Just
793 (clone_function_decl): Call build_clones, then maybe add them to
796 * class.c (build_clone): Refactor to clarify recursiveness.
798 2019-10-14 Jason Merrill <jason@redhat.com>
800 PR c++/91930 - ICE with constrained inherited default ctor.
801 * name-lookup.c (do_class_using_decl): Set TYPE_HAS_USER_CONSTRUCTOR
802 for inherited constructor.
804 2019-10-14 Paolo Carlini <paolo.carlini@oracle.com>
806 * decl.c (check_tag_decl): Use DECL_SOURCE_LOCATION.
808 2019-10-14 Jakub Jelinek <jakub@redhat.com>
811 * semantics.c (handle_omp_array_sections_1): Temporarily disable
812 -fstrong-eval-order also for in_reduction and task_reduction clauses.
814 * parser.c (cp_parser_omp_all_clauses): Change bool NESTED_P argument
815 into int NESTED, if it is 2, diagnose missing commas in between
817 (cp_parser_omp_context_selector): Pass 2 as last argument to
818 cp_parser_omp_all_clauses.
820 2019-10-12 Jakub Jelinek <jakub@redhat.com>
822 * parser.c (cp_parser_omp_context_selector): Improve error recovery.
823 For simd properties, put them directly into TREE_VALUE.
824 (cp_finish_omp_declare_variant): Add "omp declare variant base"
825 attribute rather than "omp declare variant".
827 2019-10-11 Marek Polacek <polacek@redhat.com>
829 PR c++/92049 - extra error with -fchecking=2.
830 * pt.c (build_non_dependent_expr): Call fold_non_dependent_expr
833 2019-10-11 Paolo Carlini <paolo.carlini@oracle.com>
835 * typeck.c (cp_build_binary_op): Do not handle RROTATE_EXPR and
837 * constexpr.c (cxx_eval_constant_expression): Likewise.
838 (potential_constant_expression_1): Likewise.
839 * pt.c (tsubst_copy): Likewise.
841 2019-10-11 Jason Merrill <jason@redhat.com>
843 * decl2.c (mark_used): Don't clobber DECL_SOURCE_LOCATION on
844 explicitly defaulted functions.
845 * method.c (synthesize_method): Likewise.
847 2019-10-11 Jakub Jelinek <jakub@redhat.com>
850 * decl2.c (grok_array_decl): For -fstrong-eval-order, when array ref
851 operands have been swapped and at least one operand has side-effects,
852 revert the swapping before calling build_array_ref.
853 * typeck.c (cp_build_array_ref): For non-ARRAY_TYPE array ref with
854 side-effects on the index operand, if -fstrong-eval-order use
855 save_expr around the array operand.
856 (cp_build_binary_op): For shifts with side-effects in the second
857 operand, wrap first operand into SAVE_EXPR and evaluate it before
859 * semantics.c (handle_omp_array_sections_1): Temporarily disable
860 flag_strong_eval_order during OMP_CLAUSE_REDUCTION array section
862 * cp-gimplify.c (gimplify_to_rvalue): New function.
863 (cp_gimplify_expr): Use it.
865 2019-10-10 Marek Polacek <polacek@redhat.com>
867 * typeck.c (comp_ptr_ttypes_real): Change the return type to bool.
868 Use false instead of 0.
870 2019-10-10 Jakub Jelinek <jakub@redhat.com>
872 * parser.h (struct cp_omp_declare_simd_data): Add variant_p member.
873 * parser.c (cp_ensure_no_omp_declare_simd): Handle both declare simd
875 (cp_parser_oacc_all_clauses): Formatting fix.
876 (cp_parser_omp_all_clauses): Add NESTED_P argument, if true, terminate
877 processing on closing paren and don't skip to end of pragma line.
878 (cp_parser_omp_declare_simd): Add VARIANT_P argument. Handle also
880 (omp_construct_selectors, omp_device_selectors,
881 omp_implementation_selectors, omp_user_selectors): New variables.
882 (cp_parser_omp_context_selector,
883 cp_parser_omp_context_selector_specification,
884 cp_finish_omp_declare_variant): New functions.
885 (cp_parser_late_parsing_omp_declare_simd): Handle also declare variant.
886 (cp_parser_omp_declare): Handle declare variant.
888 2019-10-09 Jason Merrill <jason@redhat.com>
890 * cp-tree.h (template_info_decl_check): Check ENABLE_TREE_CHECKING.
892 2019-10-09 Marek Polacek <polacek@redhat.com>
894 PR c++/91364 - P0388R4: Permit conversions to arrays of unknown bound.
895 PR c++/69531 - DR 1307: Differently bounded array parameters.
896 PR c++/88128 - DR 330: Qual convs and pointers to arrays of pointers.
897 * call.c (build_array_conv): Build ck_identity at the beginning
899 (standard_conversion): Pass bounds_none to comp_ptr_ttypes_const.
900 (maybe_warn_array_conv): New.
901 (convert_like_real): Call it. Add an error message about converting
902 from arrays of unknown bounds.
903 (conv_get_original_expr): New.
904 (nelts_initialized_by_list_init): New.
905 (conv_binds_to_array_of_unknown_bound): New.
906 (compare_ics): Implement list-initialization ranking based on
907 array sizes, as specified in DR 1307 and P0388R.
908 * cp-tree.h (comp_ptr_ttypes_const): Adjust declaration.
909 (compare_bounds_t): New enum.
910 * typeck.c (comp_array_types): New bool and compare_bounds_t
911 parameters. Use them.
912 (structural_comptypes): Adjust the call to comp_array_types.
913 (similar_type_p): Handle ARRAY_TYPE.
914 (build_const_cast_1): Pass bounds_none to comp_ptr_ttypes_const.
915 (comp_ptr_ttypes_real): Don't check cv-quals of ARRAY_TYPEs. Use
916 comp_array_types to compare array types. Look through arrays as per
918 (comp_ptr_ttypes_const): Use comp_array_types to compare array types.
919 Look through arrays as per DR 330.
921 2019-10-09 Marek Polacek <polacek@redhat.com>
923 PR c++/92032 - DR 1601: Promotion of enum with fixed underlying type.
924 * call.c (standard_conversion): When converting an enumeration with
925 a fixed underlying type to the underlying type, give it the cr_promotion
927 (compare_ics): Implement a tiebreaker as per CWG 1601.
929 2019-10-08 Andrew Sutton <asutton@lock3software.com>
930 Jason Merrill <jason@redhat.com>
932 Update the concepts implementation to conform to the C++20
933 specification, improve compile times, and generally clean up
935 * call.c (build_new_function_call): Don't evaluate concepts here.
936 (constraint_failure): Don't record the template.
937 (print_z_candidate): Don't extract the template.
938 * class.c (add_method): When overloading, hide ineligible special
940 (check_methods): Set TYPE_HAS_COMPLEX_* here.
941 * constexpr.c (cxx_eval_constant_expression): Evaluate concepts.
942 (maybe_initialize_fundef_copies_table): Remove.
943 (get_fundef_copy): Use hash_map_safe_get_or_insert.
944 (clear_cv_and_fold_caches): Clear the satisfaction cache.
945 * constraint.cc (known_non_bool_p): New.
946 (parsing_constraint_expression_sentinel): Renamed from
947 expanding_constraint_sentinel.
948 (check_constraint_operands): New.
949 (check_constraint_atom): New.
950 (finish_constraint_binary_op): New.
951 (finish_constraint_or_expr): Likewise.
952 (finish_constraint_and_expr): Likewise.
953 (finish_constraint_primary_expr): Likewise.
954 (combine_constraint_expressions): New.
955 (finish_requires_expr): Add location parm.
956 (get_concept_definition): Return the initializer of concept definitions.
957 (get_template_head_requirements): New.
958 (get_trailing_function_requirements): New.
959 (deduce_constrained_parameter): Check if the identifier or template-id
960 is a concept definition.
961 (resolve_concept_definition_check): Removed.
962 (resolve_variable_concept_check): Removed.
963 (resolve_concept_check): New.
964 (resolve_constraint_check): Handle concept definitions.
965 converting arguments.
966 (function_concept_check_p): Removed.
967 (variable_concept_check_p): Removed.
968 (unpack_concept_check): New.
969 (get_concept_check_template): New.
970 (build_call_check): Moved and renamed to build_function_check.
971 (build_concept_check_arguments): make static.
972 (build_function_check): Always do overload resolution
973 in order to force conversion of template arguments (i.e., actually
974 check that the use of a concept is valid).
975 (build_standard_check): Renamed from build_real_concept_check.
976 (build_real_concept_check): Build checks for C++2a concepts by
977 (build_wildcard_concept_check): New.
978 (build_concept_check): Use build_real_concept_check. New overload.
979 (build_constraints): Save expressions, not normalized constraints.
980 (build_concept_id): New. Pass tf_warning_or_error.
981 (build_type_constraint): New.
982 (finish_type_constraints): New.
983 (associate_classtype_constraints): Also add constraints to union
984 types. Note the original declaration in errors. Don't return
985 error_mark_node in order to avoid an assertion later.
986 (push_down_pack_expansion): Remove.
987 (finish_shorthand_constraint): Make fold expressions, not naked
988 parameter packs. Always apply the constraint to each template argument.
989 (check_introduction_list): New. Fail if not enough
990 names are introduced.
991 (finish_template_introduction): Don't normalize constraints. Pass
992 tsubst flags. Check for insufficient introductions.
993 (placeholder_extract_concept_and_args): Handle the template-id case.
994 Unpack function concept checks correctly.
995 (tsubst_simple_requirement): Return errors if they occur. Don't
996 process as a template.
997 (tsubst_type_requirement): Likewise.
998 (type_deducible_p): New. Wrap the input expression in parens for the
999 purpose of deduction.
1000 (expression_convertible_t): New.
1001 (tsubst_compound_requirement): Use new deduction, conversion predicates.
1002 (tsubst_nested_requirement): Return errors if they occur. Don't
1003 process as a template. Instantiate and evaluate the nested requirement.
1004 (tsubst_valid_expression_requirement): New.
1005 (tsubst_simple_requirement): Use tsubst_valid_expression_requirement.
1006 (tsubst_compound_requirement): Use tsubst_valid_expression_requirement.
1007 (check_constaint_variables): New.
1008 (tsubst_constraint_variables): Check that type substitutions are valid.
1009 (tsubst_requires_expr): Likewise. Produce new requires-exprs during
1010 template substitution. Copy the previous local specialization stack,
1011 so references to non-local parameters can be found. Use cp_unevaluated.
1012 (tsubst_constraint): New. Don't evaluate concept checks.
1014 (norm_info): New. Used to build a normalization tree for concept check
1016 (debug_parameter_mapping): New.
1017 (debug_argument_list): New.
1018 (expand_concept): Removed.
1019 (normalize_logical_operation): Pass subst_info through call.
1020 (normalize_pack_expansion): Remove.
1021 (normalize_simple_requirement): Removed
1022 (normalize_type_requirement): Removed
1023 (normalize_compound_requirement): Removed
1024 (normalize_nested_requirement): Removed
1025 (normalize_requirement): Removed
1026 (normalize_requirements): Removed
1027 (normalize_requires_expression): Removed
1028 (normalize_variable_concept_check): Removed.
1029 (normalize_function_concept_check): Removed.
1030 (normalize_concept_check): Merged all normalize_*_check here.
1031 Substitute through written template arguments before normalizing the
1032 definition. Only substitute the innermost template arguments.
1033 (check_for_logical_overloads): Delete.
1034 (map_arguments): New. Associate template parameters with arguments.
1035 (build_parameter_mapping): New. Extract used parameters.
1036 (normalize_expression): Rewrite.
1037 (normalize_conjunction): Removed
1038 (normalize_disjunction): Removed
1039 (normalize_predicate_constraint): Removed
1040 (normalize_parameterized_constraint): Removed
1041 (normalized_map): New variable.
1042 (get_normalized_constraints): New entry point for normalization.
1043 Establishes a timer.
1044 (get_normalized_constraints_from_info): New.
1045 (get_normalized_constraints_from_decl): New. Turn on template processing
1046 prior to normalization. Handle inheriting ctors. Build the
1047 normalization arguments from the full set of template parameters of the
1048 most general template. This guarantees that we have no concrete arguments
1049 in the parameter mapping (e.g., from template members of class
1050 templates). Cache normalizations.
1051 (normalize_concept_definition): New. Cache normalizations.
1052 (normalize_template_requirements): New.
1053 (normalize_nontemplate_requirements): New.
1054 (normalize_constraint_expression): New.
1055 (tsubst_parameter_mapping): New.
1056 (get_mapped_args): New.
1057 (parameter_mapping_equivalent_p): New. Use template_args_equal.
1058 (atomic_constraints_identical_p): New.
1059 (hash_atomic_constraint): New.
1060 (satisfying_constraint_p): New. Guard against recursive evaluation of
1061 constraints during satisfaction.
1062 (satisfy_conjunction): New.
1063 (satisfy_disjunction): New.
1064 (sat_entry): New class for hashing satisfaction results.
1065 (sat_hasher): New hash traits.
1067 (get_satisfaction): New. Returns cached satisfaction result.
1068 (save_satisfaction): New. Caches a satisfaction result.
1069 (clear_satisfaction_cache): New.
1070 (satisfaction_cache): New. Helps manage satisfaction cache requests.
1071 (decl_satisfied_cache): New.
1072 (satisfy_atom): New.
1073 (satisfy_constraint_r): New.
1074 (satisfy_constraint): Use new satisfaction algorithm.
1075 (evaluate_concept_check): New.
1076 (evaluate_concept): Removed.
1077 (evaluate_function_concept): Removed.
1078 (evaluate_variable_concept): Removed.
1079 (satisfy_constraint_expression): New.
1080 (constraint_expression_satisfied_p): New.
1081 (constraints_satisfied_p): Use strip_inheriting_ctors. Use
1082 push_/pop_access_scope.
1083 (more_constrained): Normalize before calling out to subsumption. Allow
1084 classes as arguments.
1085 (strictly_subsumes): Allow non-templates as arguments. Accept a new
1087 (weakly_subsumes): New.
1088 (at_least_as_constrained): Removed.
1089 (diagnose_other_expression): Removed.
1090 (diagnose_predicate_constraint): Removed.
1091 (diagnose_pack_expansion): Removed.
1092 (diagnose_check_constraint): Removed.
1093 (diagnose_logical_constraint): Removed.
1094 (diagnose_expression_constraint): Removed.
1095 (diagnose_type_constraint): Removed.
1096 (diagnose_implicit_conversion_constraint): Removed.
1097 (diagnose_argument_deduction_constraint): Removed.
1098 (diagnose_exception_constraint): Removed.
1099 (diagnose_parameterized_constraint): Removed.
1100 (diagnose_argument_deduction_constraint): Removed.
1101 (diagnose_argument_deduction_constraint): Removed.
1102 (diagnose_argument_deduction_constraint): Removed.
1103 (diagnose_trait_expr): New.
1104 (diagnose_requires_expr): New.
1105 (diagnose_atomic_constraint): New.
1106 (diagnose_valid_expression) Stop wrongly diagnosing valid expressions.
1107 Don't substitute as if in template decls. This causes substitution
1108 to generate expressions that aren't suitable for use with the noexcept
1110 (diagnose_valid_type) Likewise.
1111 (diagnose_compound_requirement) Actually emit diagnostics for
1112 the causes of errors.Call force_paren_expr_uneval.
1113 (diagnose_declaration_constraints): Turn on template processing to
1114 suppress certain analyses.
1115 * cp-objcp-common.c (cp_common_init_ts): Make concepts typed.
1116 (cp_get_debug_type): Use hash_map_safe_*.
1117 * cp-tree.h: New function declarations for semantic actions, other
1118 facilities. Remove declaration no longer used or needed. Remove
1119 unused _CONSTR macros.
1120 (LANG_DECL_HAS_MIN): Add CONCEPT_DECL.
1121 (template_info_decl_check): Factor macro check into an inline function.
1122 (DECL_TEMPLATE_INFO): Use new check facility.
1123 (finish_concept_definition): New. Don't invalid concept declarations
1124 with invalid initializers.
1125 (find_template_parameters): New.
1126 (concept_definition_p): New.
1127 (concept_check_p): New.
1128 (variable_concept_check_p): New.
1129 (force_paren_expr_uneval): New.
1130 (ovl_iterator::using_p): A USING_DECL by itself was also
1131 introduced by a using-declaration.
1132 (struct tree_template_info): Use tree_base instead of
1133 tree_common. Add tmpl and args fields.
1134 (TI_TEMPLATE, TI_ARGS): Adjust.
1135 (DECLTYPE_FOR_INIT_CAPTURE): Remove.
1136 (CONSTR_CHECK, CONSTR_INFO, CONSTR_EXPR, CONSTR_CONTEXT): New.
1137 (ATOMIC_CONSTR_MAP, TRAIT_EXPR_LOCATION): New.
1138 (struct tree_trait_expr): Add locus field.
1139 (enum tsubst_flags): Add tf_norm as a hint to generate normalization
1140 context when diagnosing constraint failure.
1141 * cp-tree.def: Remove unused _CONSTR nodes and rename PRED_CONSTR
1143 (CONCEPT_DECL): New.
1144 * cxx-pretty-print.c: Remove constraint printing code.
1145 (pp_cxx_concept_definition): New.
1146 (pp_cxx_template_declaration): Print concept definitions.
1147 (pp_cxx_check_constraint): Update printing for concept definitions.
1148 (pp_cxx_nested_name_specifier): Fix a weird
1149 case where we're printing '::::' for concepts.
1150 (simple_type_specifier): Print requirements for placeholder types.
1151 (pp_cxx_constrained_type_spec): Print the associated requirements of
1153 (pp_cxx_compound_requirement): Add space before the '->'.
1154 (pp_cxx_parameter_mapping): Print the parameter mapping.
1155 (pp_cxx_atomic_constraint): Use the function above.
1156 * decl.c (redeclaration_error_message): New error for concepts.
1157 (grokdeclarator): Check for and disallow decltype(auto) in parameter
1159 (grokfndecl): Don't normalize constraints. Add check for constraints
1161 (grokvardecl): Don't normalize constraints.
1162 (grok_special_member_properties): Don't set TYPE_HAS_COMPLEX_*.
1163 (function_requirements_equivalent_p): New. Compare trailing
1164 requires clauses. Compare combined constraints in pre-C++20 mode.
1165 (decls_match): Compare trailing requires clauses. Compare template
1166 heads for function templates. Remove old constraint comparison.
1167 Simplify comparison of functions, function templates.
1168 (duplicate_function_template_decls): New. Refactor a nasty if
1169 condition into a single predicate.
1170 (require_deduced_type): Don't complain if we already complained about
1172 (finish_function): Perform auto deduction to ensure that constraints
1173 are checked even when functions contain no return statements. Only do
1174 auto deduction if we haven't previously seen any return statements.
1175 This prevents multiple diagnostics of the same error.
1176 (store_decomp_type): Remove.
1177 (cp_finish_decomp): Use hash_map_safe_put.
1178 * error.c: Remove constraint printing code.
1179 (dump_decl): Dump concept definitions. Handle wildcard declarations.
1180 (dump_template_decl): Likewise.
1181 (dump_type): Print associated requirements for placeholder
1183 (rebuild_concept_check): New.
1184 (maybe_print_single_constraint_context): New.
1185 (maybe_print_constraint_context): Recursively print nested contexts.
1186 * init.c (get_nsdmi): Use hash_map_safe_*.
1187 * lambda.c (maybe_add_lambda_conv_op): Bail if deduction failed.
1188 (add_capture): Copy parameter packs from init.
1189 (lambda_capture_field_type): Always use auto for init-capture.
1190 * logic.cc: Completely rewrite.
1191 (constraint_hash): New.
1192 (clause/ctor): Save atoms in the hash table.
1193 (replace): Save atoms during replacement.
1194 (insert): Save atoms during insertion.
1195 (contains): Only search the hash table for containment.
1196 (clause): Keep a hash of atomic constraints.
1197 (clause::clause): Explicitly copy the hash table when copying.
1198 (disjunction_p, conjunction_p, atomic_p, dnf_size, cnf_size): New.
1199 (diagnose_constraint_size): New.
1200 (subsumes_constraints_nonnull): Compare the sizes of normalized formula
1201 to determine the cheapest decomposition.
1202 * name-lookup.c (diagnose_name_conflict): Diagnose name issues with
1204 (matching_fn_p): Check constraints.
1205 (push_class_level_binding_1): Move overloaded functions case down,
1206 accept FUNCTION_DECL as target_decl.
1207 * parser.c (enum required_token): New required token for auto.
1208 (make_location): Add overload taking lexer as last parm.
1209 (cp_parser_required_error): Diagnose missing auto.
1210 (cp_parser_diagnose_ungrouped_constraint_plain): New.
1211 (cp_parser_diagnose_ungrouped_constraint_plain): New.
1212 (cp_parser_constraint_primary_expression): New. Tentatively parse the
1213 primary expression. If that fails tentatively parse a lower
1214 precedence expression in order to diagnose the error.
1215 (cp_parser_check_non_logical_constraint): New. Performs a trial
1216 parse of the right-hand-side of non-logical operators in order to
1217 generate good diagnostics.
1218 (cp_parser_constraint_logical_and_expression): New.
1219 (cp_parser_constraint_logical_or_expression): New.
1220 (cp_parser_requires_clause_expression): New.
1221 (cp_parser_requires_clause): Renamed to cp_parser_constraint_expression.
1222 (cp_parser_requires_clause_opt): Parse the requires-clause differently
1223 in -fconcepts and -std=c++2a modes.
1224 (cp_parser_requirement_list): Rename to cp_parser_requirement_seq.
1225 Rewrite so that semicolons are parsed
1226 along with requirements, not the sequence.
1227 (cp_parser_simple_requirement): Expect a semicolon at end.
1228 (cp_parser_compound_requirement): Expect a semicolon at end. Only
1229 allow trailing-return-type with -fconcepts-ts.
1230 (cp_parser_nested_requirement): Expect a semicolon at end. Parse
1231 constraint-expressions.
1232 (cp_parser_concept_definition): New. Don't fail parsing the concept
1233 definition if the initializer is ill-formed. Don't declare the concept
1234 before parsing the initializer.
1235 (cp_parser_constraint_expression): Declare earlier.
1236 (cp_parser_type_requirement): Current scope is not valid.
1237 (cp_parser_requires_expression): Commit to the tentative parse.
1238 (cp_parser_decl_specifier_seq): Warn when concept appears to be used
1239 as a decl-specifier.
1240 (cp_parser_template_declaration_after_parameters): Parse concept
1242 (cp_parser_template_id): Don't try to resolve a concept template-id yet.
1243 (cp_parser_template_id_expr): Resolve it as a concept check.
1244 (cp_parser_decl_specifier_seq): Warn on 'concept bool'.
1245 (cp_parser_type_parameter): Combine expressions not
1247 (cp_parser_explicit_template_declaration): Combine expressions not
1249 (cp_parser_maybe_concept_name): Removed.
1250 (cp_parser_simple_type_specifier): Handle an error condition of
1251 a bad constrained type specifier. Expect auto or decltype after
1252 a concept name. Also handle the case where we have a template-id
1254 (cp_parser_template_introduction): Diagnose errors on invalid
1255 introductions. Give up if it doesn't start with a concept name.
1256 Pedwarn if not -fconcepts-ts.
1257 (synthesize_implicit_template_parm): Don't do consistent binding.
1258 Use a new flag for constrained parameters. Combine expressions,
1259 not constraints. Fail if we get a placeholder in block scope.
1260 Placeholders that do not constrain types are not allowed in parameter
1261 declarations, so don't handle them.
1262 (cp_parser_placeholder_type_specifier): New. Implement parsing of
1263 placeholder type specifiers following a concept name or partial
1264 concept check. Disallow decltype(auto) parameters.
1265 (cp_parser_nested_name_specifier_opt): If the token is already
1266 CPP_NESTED_NAME_SPECIFIER, leave it alone.
1267 (cp_parser_id_expression, cp_parser_unqualified_id): Call
1268 cp_parser_template_id_expr.
1269 (cp_parser_placeholder_type_specifier): Add tentative parm. Don't
1270 expect a WILDCARD_DECL.
1271 (cp_parser_trait_expr): Pass trait_loc down.
1272 (cp_parser_postfix_expression): Do set location of dependent member
1274 * pt.c (finish_concept_definition): New.
1275 (push_template_decl_real): Handle concept definitions.
1276 (start_concept_definition): Let push_template_decl_real handle the
1277 creation of the template.
1278 (get_constraints): Return null if the table hasn't been initialized.
1279 (tsubst_copy_and_build): Build template-id expressions for concept
1281 [TRAIT_EXPR]: Pass trait_loc down.
1282 (lookup_template_class_1): Add the template name to the constraint
1284 (lookup_and_finish_template_variable): Build concept checks
1285 with the correct arguments.
1286 (tsubst_function_decl): Don't substitute through constraints.
1287 Always associate constraints with functions.
1288 (template_parm_level_and_index): Make non-static.
1289 (for_each_template_parm_r): Handle requires expressions.
1290 (keep_template_parm): New.
1291 (find_template_parameters): New.
1292 (more_specialized_fn): Change how winners and losers are chosen.
1293 (make_constrained_auto): Don't normalize constraints.
1294 (template_parameters_equivalent_p): New. Compare template
1295 parameters. Add a comparison for implicitly vs. explicitly declared
1297 (template_parameter_lists_equivalent_p): New. Compare template
1299 (template_requirements_equivalent_p): New.
1300 (template_heads_equivalent_p): New. Compare template heads.
1301 (template_parameter_constraints_equivalent_p): New.
1302 (is_compatible_template_arg): Use weakly_subsumes.
1303 (maybe_new_partial_specialization): Use new constraint comparison
1304 for finding specializations.
1305 (process_partial_specialization): Pass main template as argument.
1306 (more_specialized_partial_spec): Don't immediately return when
1308 (make_constrained_auto): Handle concept definitions.
1309 (do_auto_deduction): Update auto deduction for new concept model.
1310 Extract the function concept correctly; rename constr to check to
1311 reflect the kind of node.
1312 (tsubst): Adjust wildcard argument during substitution.
1313 [DECLTYPE_TYPE]: Remove init-capture handling.
1314 (tsubst_copy_and_build): Build concept checks, not template ids.
1315 Defer checks of function concepts. Handle concepts before variable
1316 templates. Handle calls to function concepts explicitly.
1317 (coerce_template_parms): Use concept_definition_p. Handle a deduction
1318 error where a potentially empty pack can be supplied after the last
1319 parameter of a concept.
1320 (finish_template_variable): Don't process concepts here.
1321 (instantiation_dependent_r): Use concept_check_p.
1322 (tsubst_template_args): Make non-static.
1323 (make_constrained_placeholder_type): New. Refactored from
1324 make_constrained_auto.
1325 (make_constrained_auto) Use make_constrained_placeholder_type.
1326 (make_constrained_decltype_auto) New.
1327 (tsubst_function_parms): New.
1328 (value_dependent_expression_p) [TEMPLATE_ID_EXPR]: Use
1329 concept_definition_p.
1330 (push_access_scope, pop_access_scope): No longer static.
1331 (tsubst_template_parm): Substitute TEMPLATE_PARM_CONSTRAINTS.
1332 (tsubst_friend_function): Use tsubst_constraint. Use generic_targs_for.
1333 (get_underlying_template) Use generic_targs_for.
1334 (uses_parameter_packs): Return tree.
1335 (gen_elem_of_pack_expansion_instantiation): Don't push
1336 local_specialization_stack.
1337 (prepend_one_capture): New.
1338 (tsubst_lambda_expr): Use prepend_one_capture. Don't touch
1339 local_specializations.
1340 (template_parms_level_to_args): No longer static.
1341 (add_outermost_template_args): Likewise.
1342 (find_template_parameter_info): New. Provide context for finding
1343 template parameters.
1344 (keep_template_parm): Don't keep parameters declared at depth levels
1345 greater than those of the template parameters of the source declaration.
1346 Don't propagate cv-qualified types. Return 0, so we find all template
1347 parameters, not the just first.
1348 (any_template_parm_r): New. Handle cases that are mishandled by
1349 for_each_template_parm_r.
1350 (generic_targs_for): Factor out of coerce_template_args_for_ttp.
1351 (tsubst_argument_pack): Factor out of tsubst_template_args.
1352 (constraint_sat_entry): Removed.
1353 (constraint_sat_hasher): Removed.
1354 (concept_spec_entry): Removed.
1355 (concept_spec_hasher): Removed.
1356 (constraint_memos): Removed.
1357 (concept_memos): Removed.
1358 (lookup_constraint_satisfaction): Removed.
1359 (memoize_constraint_satisfaction): Removed.
1360 (lookup_concept_satisfaction): Removed.
1361 (memoize_concept_satisfaction): Removed.
1362 (concept_expansions): Removed.
1363 (get_concept_expansion): Removed.
1364 (save_concept_expansion): Removed.
1365 (init_constraint_processing): Remove initialization of non-existing
1367 (find_template_requirement): New. Search for the sub-requirement
1368 within the associated constraints.
1369 (convert_generic_types_to_packs): Also transform the associated
1370 constraint and update the current template requirements.
1371 (store_defaulted_ttp, lookup_defaulted_ttp): Remove.
1372 (add_defaults_to_ttp): Use hash_map_safe_*.
1373 * semantics.c (finish_call_expr): Diagnose calls to concepts.
1374 Handle concept checks explicitly.
1375 (finish_id_expression): Evaluate variable concepts as part of
1376 id-expression processing. Don't treat variable concepts as variables,
1377 and don't process function concepts as plain id-expressions.
1378 (force_paren_expr): Add even_uneval parm.
1379 (finish_trait_expr): Add location parm.
1380 * tree.c (special_memfn_p): New.
1381 (cp_expr_location): Handle TRAIT_EXPR.
1382 * typeck.c (check_return_expr): Actually use the diagnostic kind
1383 when performing return-type deduction.
1384 * typeck2.c (build_functional_cast): Don't rely on the location of
1387 2019-10-09 Paolo Carlini <paolo.carlini@oracle.com>
1389 * decl.c (grok_ctor_properties): Use DECL_SOURCE_LOCATION.
1390 * typeck.c (cp_build_binary_op): Use the op_location_t argument
1391 in many error messages.
1393 2019-10-08 Martin Sebor <msebor@redhat.com>
1396 * call.c (maybe_warn_class_memaccess): Handle arrays.
1398 2019-10-07 Paolo Carlini <paolo.carlini@oracle.com>
1400 * call.c (resolve_args): Use cp_expr_loc_or_input_loc in one place.
1401 * decl.c (grokdeclarator): Use id_loc in one place.
1402 * decl2.c (build_anon_union_vars): Use DECL_SOURCE_LOCATION.
1403 * parser.c (cp_parser_delete_expression): Fix the location of the
1404 returned expression.
1405 (cp_parser_throw_expression): Likewise.
1406 * pt.c (determine_specialization): Use DECL_SOURCE_LOCATION.
1408 2019-10-05 Jakub Jelinek <jakub@redhat.com>
1410 PR c++/91369 - Implement P0784R7: constexpr new
1411 * cp-tree.h (enum cp_tree_index): Add CPTI_HEAP_UNINIT_IDENTIFIER,
1412 CPTI_HEAP_IDENTIFIER and CPTI_HEAP_DELETED_IDENTIFIER.
1413 (heap_uninit_identifier, heap_identifier, heap_deleted_identifier):
1415 (type_has_constexpr_destructor, build_new_constexpr_heap_type,
1416 cxx_constant_dtor): Declare.
1417 * class.c (type_maybe_constexpr_default_constructor): Make static.
1418 (type_maybe_constexpr_destructor, type_has_constexpr_destructor): New
1420 (finalize_literal_type_property): For c++2a, don't clear
1421 CLASSTYPE_LITERAL_P for types without trivial destructors unless they
1422 have non-constexpr destructors.
1423 (explain_non_literal_class): For c++2a, complain about non-constexpr
1424 destructors rather than about non-trivial destructors.
1425 * constexpr.c: Include stor-layout.h.
1426 (struct constexpr_global_ctx): New type.
1427 (struct constexpr_ctx): Add global field, remove values and
1428 constexpr_ops_count.
1429 (cxx_replaceable_global_alloc_fn): New inline function.
1430 (cxx_eval_call_expression): For c++2a allow calls to replaceable
1431 global allocation functions, for new return address of a heap uninit
1432 var, for delete record its deletion. Change ctx->values->{get,put} to
1433 ctx->global->values.{get,put}.
1434 (non_const_var_error): Add auto_diagnostic_group sentinel. Emit
1435 special diagnostics for heap variables.
1436 (cxx_eval_store_expression): Change ctx->values->{get,put} to
1437 ctx->global->values.{get,put}.
1438 (cxx_eval_loop_expr): Initialize jump_target if NULL. Change
1439 new_ctx.values->remove to ctx->global->values.remove.
1440 (cxx_eval_constant_expression): Change *ctx->constexpr_ops_count
1441 to ctx->global->constexpr_ops_count. Change ctx->values->{get,put} to
1442 ctx->global->values.{get,put}.
1443 <case NOP_EXPR>: Formatting fix. On cast of replaceable global
1444 allocation function to some pointer type, adjust the type of
1445 the heap variable and change name from heap_uninit_identifier
1447 (find_heap_var_refs): New function.
1448 (cxx_eval_outermost_constant_expr): Add constexpr_dtor argument,
1449 handle evaluation of constexpr dtors and add tracking of heap
1450 variables. Use tf_no_cleanup for get_target_expr_with_sfinae.
1451 (cxx_constant_value): Adjust cxx_eval_outermost_constant_expr caller.
1452 (cxx_constant_dtor): New function.
1453 (maybe_constant_value, fold_non_dependent_expr_template,
1454 maybe_constant_init_1): Adjust cxx_eval_outermost_constant_expr
1456 (potential_constant_expression_1): Ignore clobbers. Allow
1457 COND_EXPR_IS_VEC_DELETE for c++2a.
1458 * decl.c (initialize_predefined_identifiers): Add heap identifiers.
1459 (decl_maybe_constant_destruction): New function.
1460 (cp_finish_decl): Don't clear TREE_READONLY for constexpr variables
1461 with non-trivial, but constexpr destructors.
1462 (register_dtor_fn): For constexpr variables with constexpr non-trivial
1463 destructors call cxx_maybe_build_cleanup instead of adding destructor
1465 (expand_static_init): For constexpr variables with constexpr
1466 non-trivial destructors call cxx_maybe_build_cleanup.
1467 (grokdeclarator): Allow constexpr destructors for c++2a. Formatting
1469 (cxx_maybe_build_cleanup): For constexpr variables with constexpr
1470 non-trivial destructors call cxx_constant_dtor instead of adding
1471 destructor calls at runtime.
1472 * init.c: Include stor-layout.h.
1473 (build_new_constexpr_heap_type, maybe_wrap_new_for_constexpr): New
1475 (build_new_1): For c++2a and new[], add cast around the alloc call
1476 to help constexpr evaluation figure out the type of the heap storage.
1477 (build_vec_delete_1): Set DECL_INITIAL of tbase and emit a DECL_EXPR
1478 for it instead of initializing an uninitialized variable.
1479 * method.c: Include intl.h.
1480 (SFK_CTOR_P, SFK_DTOR_P, SFK_ASSIGN_P, SFK_COPY_P, SFK_MOVE_P): Move
1481 definitions earlier.
1482 (process_subob_fn): Add sfk argument, adjust non-constexpr call
1483 diagnostics based on it.
1484 (walk_field_subobs): Formatting fixes. Adjust process_subob_fn caller.
1485 (synthesized_method_base_walk): Likewise.
1486 (synthesized_method_walk): Set *constexpr_p to true for dtors in c++2a.
1487 Fix up DR number in comment.
1488 (implicitly_declare_fn): Formatting fix.
1489 * typeck2.c (store_init_value): Don't call cp_fully_fold_init on
1490 initializers of automatic non-constexpr variables in constexpr
1493 2019-10-04 Jakub Jelinek <jakub@redhat.com>
1496 * constexpr.c (cxx_fold_indirect_ref_1): New function.
1497 (cxx_fold_indirect_ref): Use it.
1500 * cp-gimplify.c (cp_gimplify_expr) <case CALL_EXPR>: For
1501 -fstrong-eval-order ensure CALL_EXPR_FN side-effects are evaluated
1502 before any arguments. Additionally, ensure CALL_EXPR_FN that isn't
1503 invariant nor OBJ_TYPE_REF nor SSA_NAME is forced into a temporary.
1505 2019-10-03 Paolo Carlini <paolo.carlini@oracle.com>
1507 * init.c (build_new): Use cp_expr_loc_or_input_loc in two places.
1508 * name-lookup.c (do_pushdecl): Use DECL_SOURCE_LOCATION.
1509 (push_class_level_binding_1): Likewise.
1510 (set_decl_namespace): Likewise.
1512 2019-10-03 Jakub Jelinek <jakub@redhat.com>
1514 * constexpr.c (cxx_eval_constant_expression) <case CLEANUP_STMT>: If
1515 not skipping upon entry to body, run cleanup with the same *jump_target
1516 as it started to run the cleanup even if the body returns, breaks or
1518 (potential_constant_expression_1): Allow CLEANUP_STMT.
1520 * constexpr.c (cxx_eval_store_expression): Formatting fix. Handle
1521 const_object_being_modified with array type.
1523 2019-10-02 Jason Merrill <jason@redhat.com>
1525 * typeck2.c (store_init_value): Only clear_cv_and_fold_caches if the
1528 2019-09-30 Jason Merrill <jason@redhat.com>
1530 Use hash_map_safe_* functions.
1531 * constexpr.c (maybe_initialize_fundef_copies_table): Remove.
1532 (get_fundef_copy): Use hash_map_safe_get_or_insert.
1533 * cp-objcp-common.c (cp_get_debug_type): Use hash_map_safe_*.
1534 * decl.c (store_decomp_type): Remove.
1535 (cp_finish_decomp): Use hash_map_safe_put.
1536 * init.c (get_nsdmi): Use hash_map_safe_*.
1537 * pt.c (store_defaulted_ttp, lookup_defaulted_ttp): Remove.
1538 (add_defaults_to_ttp): Use hash_map_safe_*.
1540 2019-10-02 Richard Biener <rguenther@suse.de>
1543 * decl.c (build_ptrmemfunc_type): Mark pointer-to-member
1544 fat pointer structure members as DECL_NONADDRESSABLE_P.
1546 2019-09-28 Marek Polacek <polacek@redhat.com>
1548 PR c++/91889 - follow-up fix for DR 2352.
1549 * call.c (involves_qualification_conversion_p): New function.
1550 (direct_reference_binding): Build a ck_qual if the conversion
1551 would involve a qualification conversion.
1552 (convert_like_real): Strip the conversion created by the ck_qual
1553 in direct_reference_binding.
1555 PR c++/91921 - stray warning with -Woverloaded-virtual.
1556 * class.c (warn_hidden): Only emit the second part of
1557 -Woverloaded-virtual if the first part was issued. Use inform instead
1560 PR c++/91923 - failure-to-SFINAE with class type NTTP in C++17.
1561 * pt.c (invalid_nontype_parm_type_p): Only emit errors when
1564 2019-09-27 Jakub Jelinek <jakub@redhat.com>
1567 * parser.c (cp_parser_omp_var_list_no_open): Parse predefined
1569 * semantics.c (finish_omp_clauses): Allow predefined variables in
1570 shared and firstprivate clauses, even when they are predetermined
1572 * cp-gimplify.c (cxx_omp_predetermined_sharing_1): Return
1573 OMP_CLAUSE_DEFAULT_SHARED for predefined variables.
1575 2019-09-27 Jason Merrill <jason@redhat.com>
1577 * constexpr.c (cxx_fold_indirect_ref): Use similar_type_p.
1578 (cxx_eval_indirect_ref): Likewise. Improve error location.
1580 * cp-tree.h (class iloc_sentinel): New.
1581 * decl.c (grokdeclarator, finish_enum_value_list): Use it.
1582 * mangle.c (mangle_decl_string): Use it.
1583 * pt.c (perform_typedefs_access_check): Use it.
1585 2019-09-27 Richard Sandiford <richard.sandiford@arm.com>
1587 * cp-tree.h (build_cxx_call): Take the original function decl
1588 as an optional final parameter.
1589 (cp_build_function_call_vec): Likewise.
1590 * call.c (build_cxx_call): Likewise. Pass all built-in calls to
1591 check_builtin_function_arguments.
1592 * typeck.c (build_function_call_vec): Take the original function
1593 decl as an optional final parameter and pass it to
1594 cp_build_function_call_vec.
1595 (cp_build_function_call_vec): Take the original function
1596 decl as an optional final parameter and pass it to build_cxx_call.
1598 2019-09-25 Marek Polacek <polacek@redhat.com>
1600 PR c++/91877 - ICE with converting member of packed struct.
1601 * call.c (convert_like_real): Use similar_type_p in an assert.
1603 2019-09-25 Paolo Carlini <paolo.carlini@oracle.com>
1605 * name-lookup.c (check_extern_c_conflict): Use DECL_SOURCE_LOCATION.
1606 (check_local_shadow): Use it in three additional places.
1608 2019-09-24 Jason Merrill <jason@redhat.com>
1610 * parser.c (cp_parser_postfix_expression): Do set location of
1611 dependent member call.
1613 2019-09-24 Marek Polacek <polacek@redhat.com>
1615 PR c++/91868 - improve -Wshadow location.
1616 * name-lookup.c (check_local_shadow): Use DECL_SOURCE_LOCATION
1617 instead of input_location.
1619 PR c++/91845 - ICE with invalid pointer-to-member.
1620 * expr.c (mark_use): Use error_operand_p.
1621 * typeck2.c (build_m_component_ref): Check error_operand_p after
1622 calling mark_[lr]value_use.
1624 2019-09-23 Paolo Carlini <paolo.carlini@oracle.com>
1626 * pt.c (check_explicit_specialization): Use cp_expr_loc_or_input_loc.
1627 (process_partial_specialization): Likewise.
1628 (convert_nontype_argument_function): Likewise.
1629 (invalid_tparm_referent_p): Likewise.
1630 (convert_template_argument): Likewise.
1631 (check_valid_ptrmem_cst_expr): Tidy.
1633 2019-09-23 Jason Merrill <jason@redhat.com>
1635 PR c++/91809 - bit-field and ellipsis.
1636 * call.c (convert_arg_to_ellipsis): Don't call decay_conversion for
1637 arithmetic arguments.
1639 2019-09-23 Marek Polacek <polacek@redhat.com>
1641 PR c++/91844 - Implement CWG 2352, Similar types and reference binding.
1642 * call.c (reference_related_p): Use similar_type_p instead of
1644 (reference_compatible_p): Update implementation to match CWG 2352.
1645 * cp-tree.h (similar_type_p): Declare.
1646 * typeck.c (similar_type_p): New.
1648 2019-09-22 Marek Polacek <polacek@redhat.com>
1650 PR c++/91819 - ICE with operator++ and enum.
1651 * call.c (build_new_op_1): Set arg2_type.
1653 2019-09-17 Jason Merrill <jason@redhat.com>
1655 * parser.c (cp_parser_statement): Handle [[likely]] on
1658 2019-09-19 Jason Merrill <jason@redhat.com>
1661 * call.c (build_new_op_1): Don't apply any standard conversions to
1662 the operands of a built-in operator. Don't suppress conversions in
1664 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
1666 2019-09-16 Paolo Carlini <paolo.carlini@oracle.com>
1668 * decl.c (grokdeclarator): Use declspecs->locations and
1669 declarator->id_loc in a few error messages.
1670 * pt.c (finish_member_template_decl): Use DECL_SOURCE_LOCATION.
1671 (push_template_decl_real): Likewise.
1673 2019-09-15 Jason Merrill <jason@redhat.com>
1675 PR c++/30277 - int-width bit-field promotion.
1676 PR c++/33819 - long bit-field promotion.
1677 * typeck.c (cp_perform_integral_promotions): Handle large bit-fields
1678 properly. Handle 32-bit non-int bit-fields properly.
1679 (is_bitfield_expr_with_lowered_type): Don't look through NOP_EXPR.
1681 PR c++/82165 - enum bitfields and operator overloading.
1682 * call.c (build_new_op_1): Use unlowered_expr_type.
1684 * call.c (build_new_op_1): Don't apply any standard conversions to
1685 the operands of a built-in operator. Don't suppress conversions in
1687 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
1689 2019-09-15 Marek Polacek <polacek@redhat.com>
1691 PR c++/91740 - ICE with constexpr call and ?: in ARRAY_REF.
1692 * pt.c (build_non_dependent_expr): Call build_non_dependent_expr for
1695 2019-09-15 Nathan Sidwell <nathan@acm.org>
1697 * cp-tree.h (DECL_CLONED_FUNCTION_P): Reimplement using
1698 IDENTIFIER_CDTOR_P, correct documentation.
1699 (DECL_CLONED_FUNCTION): Directly access field.
1700 (decl_cloned_function_p): Delete.
1701 * class.c (decl_cloned_function_p): Delete.
1702 * pt.c (instantiate_template_1): Check DECL_CHAIN is a decl.
1704 2019-09-11 Nathan Sidwell <nathan@acm.org>
1706 * c-objcp-common.c (cp-objcp-common.c): Alphababetize and
1707 correctly mark all C++ nodes.
1708 * decl.c (cp_tree_node_structure): Alphabetize.
1710 2019-09-10 Marek Polacek <polacek@redhat.com>
1712 PR c++/91673 - ICE with noexcept in alias-declaration.
1713 * parser.c (CP_PARSER_FLAGS_DELAY_NOEXCEPT): New parser flag.
1714 (cp_parser_lambda_declarator_opt): Pass CP_PARSER_FLAGS_NONE to
1715 cp_parser_exception_specification_opt.
1716 (cp_parser_direct_declarator): Adjust a call to
1717 cp_parser_exception_specification_opt.
1718 (cp_parser_member_declaration): Pass CP_PARSER_FLAGS_DELAY_NOEXCEPT
1719 to cp_parser_declarator if not processing a friend or typedef
1721 (cp_parser_late_noexcept_specifier): Adjust a call to
1722 cp_parser_noexcept_specification_opt.
1723 (cp_parser_noexcept_specification_opt): New parameter for parser flags,
1724 drop the FRIEND_P parameter. Use the new parameter.
1725 (cp_parser_exception_specification_opt): Likewise.
1726 (cp_parser_transaction): Adjust a call to
1727 cp_parser_noexcept_specification_opt.
1728 (cp_parser_transaction_expression): Likewise.
1730 2019-09-10 Marek Polacek <polacek@redhat.com>
1732 PR c++/91705 - constexpr evaluation rejects ++/-- on floats.
1733 * constexpr.c (cxx_eval_increment_expression): Call fold_simple on
1736 2019-09-10 Paolo Carlini <paolo.carlini@oracle.com>
1738 * decl.c (has_designator_problem): Use cp_expr_loc_or_input_loc
1740 (build_enumerator): Likewise.
1741 (cp_finish_decl): Use DECL_SOURCE_LOCATION.
1742 (grokdeclarator): Use id_loc in two error_at; change errror
1743 message about constinit together constexpr to use two ranges.
1745 2019-09-09 Marek Polacek <polacek@redhat.com>
1747 PR c++/84374 - diagnose invalid uses of decltype(auto).
1748 * decl.c (grokdeclarator): Diagnose wrong usage of decltype(auto) in
1749 a function declaration.
1751 2019-09-06 Nathan Sidwell <nathan@acm.org>
1754 * cp-tree.h (IDENTIFIER_REPO_CHOSEN, DECL_REPO_AVAILABLE_P): Delete.
1755 (struct lang_decl_base): Remove repo_available_p.
1756 * decl.c (duplicate_decls): Don't copy DECL_REPO_AVAILABLE_P.
1758 (Reserve TREE_LANG_FLAG_3 for modules.
1759 * cp-tree.h (DECL_CONSTRUCTION_VTABLE_P): Delete.
1760 (DECL_NON_TRIVIALLY_INITIALIZED_P): Move to TREE_LANG_FLAG_6.
1761 * class.c (build_ctor_vtbl_group): Don't set
1762 DECL_CONSTRUCTION_VTABLE_P.
1763 * decl2.c (determine_visibility_from_class): Don't check
1764 DECL_CONSTRUCTION_VTABLE_P anymore.
1766 2019-09-06 Martin Liska <mliska@suse.cz>
1769 * Make-lang.in: Remove repo.o.
1770 * config-lang.in: Likewise.
1771 * cp-tree.h (init_repo): Remove declarations
1772 of repo-related functions.
1773 (repo_emit_p): Likewise.
1774 (repo_export_class_p): Likewise.
1775 (finish_repo): Likewise.
1776 * decl2.c (import_export_class): Always
1778 (mark_needed): Remove -frepo from comment.
1779 (import_export_decl): Similarly here.
1780 (c_parse_final_cleanups): Remove call of finish_repo.
1781 * lex.c (cxx_init): Remove call to init_repo.
1782 * optimize.c (can_alias_cdtor): Remove dead condition.
1783 * pt.c (push_template_decl_real): Update comment.
1784 (instantiate_decl): Remove dead code used for -frepo.
1787 2019-09-05 Marek Polacek <polacek@redhat.com>
1789 PR c++/91644 - ICE with constinit in function template.
1790 * decl.c (start_decl): Call retrofit_lang_decl for constinit variables.
1791 * pt.c (tsubst_expr): Pass LOOKUP_CONSTINIT down to cp_finish_decl for
1792 constinit variables.
1794 2019-09-05 Nathan Sidwell <nathan@acm.org>
1796 * cp-tree.h (DECL_VTABLE_OR_VTT_P): Forward to DECL_VIRTUAL_P.
1798 2019-09-04 Marek Polacek <polacek@redhat.com>
1800 * call.c (build_over_call): Remove -fdeduce-init-list implementation.
1801 * pt.c (unify): Likewise.
1803 2019-09-01 Marek Polacek <polacek@redhat.com>
1805 PR c++/91129 - wrong error with binary op in template argument.
1806 * typeck.c (warn_for_null_address): Use fold_for_warn instead of
1807 fold_non_dependent_expr.
1808 (cp_build_binary_op): Likewise.
1810 2019-08-30 Jason Merrill <jason@redhat.com>
1812 Add source location to TRAIT_EXPR.
1813 * cp-tree.h (TRAIT_EXPR_LOCATION): New.
1814 (struct tree_trait_expr): Add locus field.
1815 * parser.c (cp_parser_trait_expr): Pass trait_loc down.
1816 * pt.c (tsubst_copy_and_build) [TRAIT_EXPR]: Likewise.
1817 * semantics.c (finish_trait_expr): Add location parm.
1818 * tree.c (cp_expr_location): Handle TRAIT_EXPR.
1820 2019-08-29 Paolo Carlini <paolo.carlini@oracle.com>
1822 * decl.c (check_var_type): Add location_t parameter and use it.
1823 (grokdeclarator): Adjust call.
1824 * pt.c (tsubst_decl): Likewise.
1825 * cp-tree.h: Adjust declaration.
1827 2019-08-28 Marek Polacek <polacek@redhat.com>
1829 Implement P1152R4: Deprecating some uses of volatile.
1831 * cp-gimplify.c (cp_fold): Set TREE_THIS_VOLATILE.
1832 * decl.c (grokdeclarator): Warn about a volatile-qualified structured
1833 binding and return type.
1834 (grokparms): Warn about a volatile-qualified function parameter.
1835 * expr.c (mark_use) <case MODIFY_EXPR>: Emit a -Wvolatile warning.
1836 * typeck.c (cp_build_unary_op): Emit a -Wvolatile warning for pre and
1837 post ++/-- on a volatile operand.
1838 (genericize_compound_lvalue): Use a better location. Don't lose
1840 (cp_build_modify_expr): Emit a -Wvolatile warning for a compound
1841 assignment whose LHS is volatile-qualified. Build the assignment with
1842 a more precise location.
1844 2019-08-28 Marek Polacek <polacek@redhat.com>
1846 PR c++/91360 - Implement C++20 P1143R2: constinit.
1847 * cp-tree.h (TINFO_VAR_DECLARED_CONSTINIT): Define.
1848 (LOOKUP_CONSTINIT): Define.
1849 (enum cp_decl_spec): Add ds_constinit.
1850 * decl.c (check_tag_decl): Give an error for constinit in type
1852 (check_initializer): Also check LOOKUP_CONSTINIT.
1853 (cp_finish_decl): Add checking for a constinit declaration. Set
1854 TINFO_VAR_DECLARED_CONSTINIT.
1855 (grokdeclarator): Add checking for a declaration with the constinit
1857 * lex.c (init_reswords): Handle D_CXX20.
1858 * parser.c (cp_lexer_get_preprocessor_token): Pass a better location
1859 to warning_at. Warn about C++20 keywords.
1860 (cp_keyword_starts_decl_specifier_p): Handle RID_CONSTINIT.
1861 (cp_parser_diagnose_invalid_type_name): Add an inform about constinit.
1862 (cp_parser_decomposition_declaration): Maybe pass LOOKUP_CONSTINIT to
1864 (cp_parser_decl_specifier_seq): Handle RID_CONSTINIT.
1865 (cp_parser_init_declarator): Maybe pass LOOKUP_CONSTINIT to
1867 (set_and_check_decl_spec_loc): Add "constinit".
1868 * pt.c (tsubst_decl): Set TINFO_VAR_DECLARED_CONSTINIT.
1869 (instantiate_decl): Maybe pass LOOKUP_CONSTINIT to cp_finish_decl.
1870 * typeck2.c (store_init_value): If a constinit variable wasn't
1871 initialized using a constant initializer, give an error.
1873 2019-08-28 Nathan Sidwell <nathan@acm.org>
1876 * name-lookup.c (cp_emit_debug_info): Check for builtins during
1879 2019-08-27 Marek Polacek <polacek@redhat.com>
1881 PR c++/81676 - bogus -Wunused warnings in constexpr if.
1882 * semantics.c (maybe_mark_exp_read_r): New function.
1883 (finish_if_stmt): Call it on THEN_CLAUSE and ELSE_CLAUSE.
1885 PR c++/91428 - warn about std::is_constant_evaluated in if constexpr.
1886 * cp-tree.h (decl_in_std_namespace_p): Declare.
1887 * semantics.c (is_std_constant_evaluated_p): New.
1888 (finish_if_stmt_cond): Warn about "std::is_constant_evaluated ()" in
1890 * typeck.c (decl_in_std_namespace_p): No longer static.
1892 2019-08-26 Jason Merrill <jason@redhat.com>
1894 * decl.c (duplicate_decls): Always merge DECL_DECLARED_CONSTEXPR_P.
1896 2019-08-26 Marek Polacek <polacek@redhat.com>
1898 PR c++/91545 - ICE in constexpr store evaluation.
1899 * constexpr.c (cxx_eval_store_expression): Check FIELD_DECL instead
1902 2019-08-24 Nathan Sidwell <nathan@acm.org>
1904 * class.c (check_for_overrides): Conversion operators need
1907 2019-08-24 Paolo Carlini <paolo.carlini@oracle.com>
1909 * semantics.c (finish_switch_cond): Improve error message location.
1911 2019-08-23 Jason Merrill <jason@redhat.com>
1913 * decl2.c (decl_dependent_p): New.
1914 (mark_used): Check it instead of just processing_template_decl.
1916 2019-08-23 Jason Merrill <jason@redhat.com>
1918 * parser.c (cp_parser_nested_name_specifier_opt): Avoid redundant
1921 2019-08-23 Marek Polacek <polacek@redhat.com>
1923 PR c++/91521 - wrong error with operator->.
1924 * decl.c (grokdeclarator): Return error_mark_node for an invalid
1925 trailing return type.
1927 PR c++/79817 - attribute deprecated on namespace.
1928 * cp-tree.h (cp_warn_deprecated_use_scopes): Declare.
1929 * decl.c (grokdeclarator): Call cp_warn_deprecated_use_scopes.
1930 (type_is_deprecated): Likewise.
1931 * decl2.c (cp_warn_deprecated_use_scopes): New function.
1932 * name-lookup.c (handle_namespace_attrs): Handle attribute deprecated.
1933 * parser.c (cp_parser_namespace_alias_definition): Call
1934 cp_warn_deprecated_use_scopes.
1935 (cp_parser_using_declaration): Likewise.
1936 (cp_parser_using_directive): Likewise.
1937 * semantics.c (finish_id_expression_1): Likewise.
1939 2019-08-23 Nathan Sidwell <nathan@acm.org>
1941 * class.c (check_for_override): Checking IDENTIFIER_VIRTUAL_P is
1942 sufficient, reorder DECL_OVERRIDE_P check.
1944 2019-08-23 Iain Sandoe <iain@sandoe.co.uk>
1947 * parser.c (cp_parser_initial_pragma): Call c_common_no_more_pch ()
1948 after determining that the first token is not
1949 PRAGMA_GCC_PCH_PREPROCESS.
1951 2019-08-22 Marek Polacek <polacek@redhat.com>
1953 PR c++/91304 - prefix attributes ignored in condition.
1954 * parser.c (cp_parser_condition): Handle prefix attributes.
1956 2019-08-21 Richard Sandiford <richard.sandiford@arm.com>
1959 * decl.c (duplicate_decls): Call copy_attributes_to_builtin inside
1960 the BUILT_IN_NORMAL block rather than afterward.
1962 2019-08-19 Marek Polacek <polacek@redhat.com>
1964 PR c++/91264 - detect modifying const objects in constexpr.
1965 * constexpr.c (modifying_const_object_error): New function.
1966 (cxx_eval_call_expression): Set TREE_READONLY on a CONSTRUCTOR of
1967 a const-qualified object after it's been fully constructed.
1968 (modifying_const_object_p): New function.
1969 (cxx_eval_store_expression): Detect modifying a const object
1970 during constant expression evaluation.
1971 (cxx_eval_increment_expression): Use a better location when building
1973 (cxx_eval_constant_expression) <case DECL_EXPR>: Mark a constant
1974 object's constructor TREE_READONLY.
1976 2019-08-15 Jason Merrill <jason@redhat.com>
1978 PR c++/90393 - ICE with thow in ?:
1980 PR c++/64372, DR 1560 - Gratuitous lvalue-to-rvalue conversion in ?:
1981 * tree.c (lvalue_kind): Handle throw in one arm.
1982 * typeck.c (rationalize_conditional_expr): Likewise.
1983 (cp_build_modify_expr): Likewise.
1985 2019-08-14 Jason Merrill <jason@redhat.com>
1987 Implement P0848R3, Conditionally Trivial Special Member Functions.
1988 * tree.c (special_memfn_p): New.
1989 * class.c (add_method): When overloading, hide ineligible special
1991 (check_methods): Set TYPE_HAS_COMPLEX_* here.
1992 * decl.c (grok_special_member_properties): Not here.
1993 * name-lookup.c (push_class_level_binding_1): Move overloaded
1994 functions case down, accept FUNCTION_DECL as target_decl.
1996 2019-08-14 Jonathan Wakely <jwakely@redhat.com>
1999 * name-lookup.c (get_std_name_hint): Fix min_dialect field for
2000 complex_literals and make_unique entries.
2002 2019-08-14 Jakub Jelinek <jakub@redhat.com>
2003 Marek Polacek <polacek@redhat.com>
2005 PR c++/91391 - bogus -Wcomma-subscript warning.
2006 * parser.c (cp_parser_postfix_open_square_expression): Don't warn about
2007 a deprecated comma here. Pass warn_comma_subscript down to
2008 cp_parser_expression.
2009 (cp_parser_expression): New bool parameter. Warn about uses of a comma
2010 operator within a subscripting expression.
2011 (cp_parser_skip_to_closing_square_bracket): Revert to pre-r274121 state.
2012 (cp_parser_skip_to_closing_square_bracket_1): Remove.
2014 2019-08-14 Jonathan Wakely <jwakely@redhat.com>
2016 * name-lookup.c (get_std_name_hint): Add more entries.
2018 2019-08-14 Paolo Carlini <paolo.carlini@oracle.com>
2020 * decl2.c (grok_array_decl): Use the location of the open square
2021 bracket in error message about invalid types.
2023 2019-08-14 Paolo Carlini <paolo.carlini@oracle.com>
2025 * decl.c (grokdeclarator): Check here for typedef a function
2026 definition or a member function definition.
2027 (start_function): Adjust.
2028 (grokmethod): Likewise.
2030 2019-08-13 Richard Sandiford <richard.sandiford@arm.com>
2033 * decl.c (duplicate_decls): Use copy_decl_built_in_function.
2034 * pt.c (declare_integer_pack): Use set_decl_built_in_function.
2036 2019-08-13 Marek Polacek <polacek@redhat.com>
2038 PR c++/90473 - wrong code with nullptr in default argument.
2039 * call.c (null_ptr_cst_p): Update quote from the standard.
2040 * decl.c (check_default_argument): Don't return nullptr when the arg
2043 2019-08-13 Marek Polacek <polacek@redhat.com>
2045 * cp-tree.h (DECL_MUTABLE_P): Use FIELD_DECL_CHECK.
2047 2019-08-10 Jakub Jelinek <jakub@redhat.com>
2049 * parser.c (cp_parser_omp_clause_name): Parse device_type.
2050 (cp_parser_omp_clause_device_type): New function.
2051 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
2052 (OMP_DECLARE_TARGET_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
2053 (cp_parser_omp_declare_target): Handle device_type clauses. Remove
2054 diagnostics for declare target with clauses nested in clause-less
2055 declare target declaration-definition-seq.
2056 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_DEVICE_TYPE.
2058 2019-08-09 Jakub Jelinek <jakub@redhat.com>
2060 * parser.c (check_no_duplicate_clause): Simplify using
2062 (cp_parser_omp_clause_if): Fix up printing of target {enter,exit} data
2063 directive name modifiers.
2066 * parser.c (cp_parser_omp_clause_dist_schedule): Comment out the
2067 check_no_duplicate_clause call, instead emit a warning for duplicate
2068 dist_schedule clauses.
2070 2019-08-08 Paolo Carlini <paolo.carlini@oracle.com>
2072 * decl.c (grokdeclarator): Use id_loc and EXPR_LOCATION in
2073 a few error messages.
2075 2019-08-08 Marek Polacek <polacek@redhat.com>
2077 PR c++/87519 - bogus warning with -Wsign-conversion.
2078 * typeck.c (cp_build_binary_op): Use same_type_p instead of comparing
2081 * constexpr.c (inline_asm_in_constexpr_error): New.
2082 (cxx_eval_constant_expression) <case ASM_EXPR>: Call it.
2083 (potential_constant_expression_1) <case ASM_EXPR>: Likewise.
2085 2019-08-08 Jakub Jelinek <jakub@redhat.com>
2087 * semantics.c (finish_omp_clauses): For C_ORT_OMP
2088 OMP_CLAUSE_USE_DEVICE_* clauses use oacc_reduction_head bitmap
2089 instead of generic_head to track duplicates.
2091 2019-08-07 Marek Polacek <polacek@redhat.com>
2093 PR c++/81429 - wrong parsing of constructor with C++11 attribute.
2094 * parser.c (cp_parser_constructor_declarator_p): Handle the scenario
2095 when a parameter declaration begins with [[attribute]].
2097 2019-08-07 Marek Polacek <polacek@redhat.com>
2099 PR c++/91346 - Implement P1668R1, allow unevaluated asm in constexpr.
2100 * constexpr.c (cxx_eval_constant_expression): Handle ASM_EXPR.
2101 (potential_constant_expression_1) <case ASM_EXPR>: Allow.
2102 * cp-tree.h (finish_asm_stmt): Adjust.
2103 * parser.c (cp_parser_asm_definition): Grab the locaion of "asm" and
2104 use it. Change an error to a pedwarn. Allow asm in C++2a, warn
2106 * pt.c (tsubst_expr): Pass a location down to finish_asm_stmt.
2107 * semantics.c (finish_asm_stmt): New location_t parameter. Use it.
2109 2019-08-07 Jakub Jelinek <jakub@redhat.com>
2111 * parser.c (cp_parser_omp_clause_name): Parse use_device_addr clause.
2112 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
2113 (OMP_TARGET_DATA_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
2114 (cp_parser_omp_target_data): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR
2115 like PRAGMA_OMP_CLAUSE_USE_DEVICE_PTR, adjust diagnostics about no
2116 map or use_device_* clauses.
2117 * semantics.c (finish_omp_clauses): For OMP_CLAUSE_USE_DEVICE_PTR
2118 in OpenMP, require pointer or reference to pointer type rather than
2119 pointer or array or reference to pointer or array type. Handle
2120 OMP_CLAUSE_USE_DEVICE_ADDR.
2121 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_USE_DEVICE_ADDR.
2123 2019-08-06 Jason Merrill <jason@redhat.com>
2125 PR c++/91378 - ICE with noexcept and auto return type.
2126 * pt.c (maybe_instantiate_noexcept): push_to_top_level.
2128 2019-08-06 Paolo Carlini <paolo.carlini@oracle.com>
2130 * decl.c (check_array_designated_initializer): Use
2131 cp_expr_loc_or_input_loc in one place.
2133 2019-08-06 Jakub Jelinek <jakub@redhat.com>
2135 * parser.c (cp_parser_omp_for_loop): For OMP_LOOP, ignore parallel
2136 clauses and predetermine iterator as lastprivate.
2137 * semantics.c (handle_omp_for_class_iterator): Use
2138 OMP_CLAUSE_LASTPRIVATE_LOOP_IV instead of
2139 OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV, set it for lastprivate also
2140 on OMP_LOOP construct. If a clause is missing for class iterator
2141 on OMP_LOOP, add firstprivate clause, and if there is private
2142 clause, turn it into firstprivate too.
2143 (finish_omp_for): Formatting fix. For OMP_LOOP, adjust
2144 OMP_CLAUSE_LASTPRIVATE_LOOP_IV clause CP_CLAUSE_INFO, so that it
2145 uses copy ctor instead of default ctor.
2146 * cp-gimplify.c (cp_gimplify_expr): Handle OMP_LOOP like
2148 (cp_fold_r): Likewise.
2149 (cp_genericize_r): Likewise.
2150 (cxx_omp_finish_clause): Also finish lastprivate clause with
2151 OMP_CLAUSE_LASTPRIVATE_LOOP_IV flag.
2152 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_BIND.
2153 (tsubst_omp_for_iterator): For OMP_LOOP, ignore parallel
2154 clauses and predetermine iterator as lastprivate.
2155 * constexpr.c (potential_constant_expression_1): Handle OMP_LOOP
2156 like OMP_DISTRIBUTE etc.
2158 2019-08-05 Marek Polacek <polacek@redhat.com>
2160 DR 2413 - typename in conversion-function-ids.
2161 * parser.c (cp_parser_conversion_type_id): Call
2162 cp_parser_type_specifier_seq with CP_PARSER_FLAGS_TYPENAME_OPTIONAL
2163 instead of CP_PARSER_FLAGS_NONE.
2165 2019-08-05 Paolo Carlini <paolo.carlini@oracle.com>
2167 * cp-tree.h (cp_expr_loc_or_input_loc): New.
2168 (cxx_incomplete_type_diagnostic): Use it.
2169 * call.c (build_converted_constant_expr_internal, convert_like_real,
2170 convert_arg_to_ellipsis, convert_for_arg_passing, build_over_call,
2171 build_cxx_call, perform_implicit_conversion_flags,
2172 initialize_reference): Likewise.
2173 * constexpr.c (cxx_eval_internal_function, cxx_eval_call_expression,
2174 eval_and_check_array_index, cxx_eval_store_expression,
2175 cxx_eval_statement_list, cxx_eval_loop_expr,
2176 cxx_eval_constant_expression, potential_constant_expression_1):
2178 * constraint.cc (check_for_logical_overloads,
2179 satisfy_predicate_constraint): Likewise.
2180 * cp-gimplify.c (cp_gimplify_expr): Likewise.
2181 * cvt.c (cp_convert_to_pointer, convert_to_reference,
2182 cp_convert_and_check, ocp_convert, maybe_warn_nodiscard): Likewise.
2183 * decl.c (pop_switch): Likewise.
2184 * decl2.c (delete_sanity): Likewise.
2185 * error.c (location_of): Likewise.
2186 * init.c (maybe_warn_list_ctor, build_aggr_init,
2187 warn_placement_new_too_small, build_new_1, build_vec_init): Likewise.
2188 * lex.c (unqualified_name_lookup_error): Likewise.
2189 * parser.c (cp_parser_initializer_list, cp_parser_omp_for_cond):
2191 * pt.c (check_for_bare_parameter_packs, check_valid_ptrmem_cst_expr,
2192 unify_arg_conversion, convert_nontype_argument,
2193 tsubst_copy_and_build, resolve_typename_type): Likewise.
2194 * semantics.c (maybe_convert_cond, finish_call_expr,
2195 cp_build_vec_convert): Likewise.
2196 * typeck.c (decay_conversion, rationalize_conditional_expr,
2197 cp_build_unary_op, build_x_compound_expr_from_list,
2198 maybe_warn_about_returning_address_of_local,
2199 maybe_warn_pessimizing_move): Likewise.
2200 * typeck2.c (check_narrowing, digest_init_r,
2201 process_init_constructor_array): Likewise.
2203 2019-08-05 Tom Honermann <tom@honermann.net>
2205 * parser.c (cp_parser_template_declaration_after_parameters): Enable
2206 class template argument deduction for non-type template parameters
2207 in literal operator templates.
2209 2019-08-05 Marek Polacek <polacek@redhat.com>
2211 PR c++/91338 - Implement P1161R3: Deprecate a[b,c].
2212 * parser.c (cp_parser_postfix_open_square_expression): Warn about uses
2213 of a comma operator within a subscripting expression.
2214 (cp_parser_skip_to_closing_square_bracket_1): New function, made out
2216 (cp_parser_skip_to_closing_square_bracket): ...this.
2218 2019-08-05 Jason Merrill <jason@redhat.com>
2220 * semantics.c (force_paren_expr): Preserve location.
2222 2019-08-02 Marek Polacek <polacek@redhat.com>
2224 PR c++/91230 - wrong error with __PRETTY_FUNCTION__ and generic lambda.
2225 * pt.c (value_dependent_expression_p): Consider __PRETTY_FUNCTION__
2226 inside a template function value-dependent.
2228 2019-08-02 Paolo Carlini <paolo.carlini@oracle.com>
2230 * tree.c (handle_nodiscard_attribute): Do not warn about nodiscard
2231 applied to a constructor.
2233 2019-08-02 Martin Liska <mliska@suse.cz>
2235 * decl.c (grok_op_properties):
2236 Mark DECL_SET_IS_OPERATOR_DELETE for user-provided delete operators.
2238 2019-08-01 Martin Sebor <msebor@redhat.com>
2241 * decl.c (reshape_init_array_1): Avoid truncating initializer
2242 lists containing string literals.
2244 2019-08-01 Marek Polacek <polacek@redhat.com>
2246 PR c++/90805 - detect narrowing in case values.
2247 * decl.c (case_conversion): Detect narrowing in case values.
2249 2019-07-31 Paolo Carlini <paolo.carlini@oracle.com>
2251 * decl2.c (delete_sanity): Improve diagnostic locations, use
2252 cp_expr_loc_or_loc in four places.
2254 2019-07-31 Jason Merrill <jason@redhat.com>
2256 PR c++/90538 - multiple expansions of capture packs
2257 * cp-tree.h (DECLTYPE_FOR_INIT_CAPTURE): Remove.
2258 * lambda.c (add_capture): Copy parameter packs from init.
2259 (lambda_capture_field_type): Always use auto for init-capture.
2260 * pt.c (uses_parameter_packs): Return tree.
2261 (tsubst) [DECLTYPE_TYPE]: Remove init-capture handling.
2262 (gen_elem_of_pack_expansion_instantiation): Don't push
2263 local_specialization_stack.
2264 (prepend_one_capture): New.
2265 (tsubst_lambda_expr): Use it. Don't touch local_specializations.
2266 (do_auto_deduction): Avoid redundant error.
2268 Fix copy_node of TEMPLATE_INFO.
2269 * cp-tree.h (struct tree_template_info): Use tree_base instead of
2270 tree_common. Add tmpl and args fields.
2271 (TI_TEMPLATE, TI_ARGS): Adjust.
2273 2019-07-30 Martin Liska <mliska@suse.cz>
2275 PR tree-optimization/91270
2276 * tree-ssa-dce.c (propagate_necessity): Mark 2nd argument
2277 of delete operator as needed.
2279 2019-07-25 Martin Liska <mliska@suse.cz>
2280 Dominik Infuhr <dominik.infuehr@theobroma-systems.com>
2283 * decl.c (cxx_init_decl_processing): Mark delete operators
2284 with DECL_SET_IS_OPERATOR_DELETE.
2286 2019-07-25 Martin Liska <mliska@suse.cz>
2288 * decl.c (duplicate_decls): Use new macros
2289 (e.g. DECL_SET_LAMBDA_FUNCTION and DECL_LAMBDA_FUNCTION_P).
2290 (cxx_init_decl_processing): Likewise.
2291 (grok_op_properties): Likewise.
2292 * parser.c (cp_parser_lambda_declarator_opt): Likewise.
2294 2019-07-24 Martin Sebor <msebor@redhat.com>
2297 * decl.c (finish_function): Use lang_mask.
2299 2019-07-20 Jason Merrill <jason@redhat.com>
2301 * cp-tree.h (ovl_iterator::using_p): A USING_DECL by itself was also
2302 introduced by a using-declaration.
2304 2019-07-20 Jason Merrill <jason@redhat.com>
2306 Reduce memory consumption for push/pop_access_scope.
2307 * name-lookup.c (leave_scope): Do add class levels other than
2308 previous_class_level to free_binding_level.
2309 (invalidate_class_lookup_cache): Move from class.c, add to
2311 * pt.c (saved_access_scope): Change from list to vec.
2313 2019-07-20 Jakub Jelinek <jakub@redhat.com>
2315 * cp-tree.h (OMP_FOR_GIMPLIFYING_P): Use OMP_LOOPING_CHECK
2316 instead of OMP_LOOP_CHECK.
2317 * parser.c (cp_parser_omp_clause_name): Handle bind clause.
2318 (cp_parser_omp_clause_bind): New function.
2319 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_BIND.
2320 (OMP_LOOP_CLAUSE_MASK): Define.
2321 (cp_parser_omp_loop): New function.
2322 (cp_parser_omp_parallel, cp_parser_omp_teams): Handle parsing of
2323 loop combined with parallel or teams.
2324 (cp_parser_omp_construct): Handle PRAGMA_OMP_LOOP.
2325 (cp_parser_pragma): Likewise.
2326 * pt.c (tsubst_expr): Handle OMP_LOOP.
2327 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_BIND.
2329 2019-07-19 Jason Merrill <jason@redhat.com>
2331 PR c++/90101 - dependent class non-type parameter.
2332 * pt.c (invalid_nontype_parm_type_p): Check for dependent class type.
2334 2019-07-18 Jason Merrill <jason@redhat.com>
2336 PR c++/90098 - partial specialization and class non-type parms.
2339 * call.c (build_converted_constant_expr_internal): Don't copy.
2340 * pt.c (process_partial_specialization): Allow VIEW_CONVERT_EXPR
2341 around class non-type parameter.
2342 (unify) [TEMPLATE_PARM_INDEX]: Ignore cv-quals.
2344 2019-07-16 Jason Merrill <jason@redhat.com>
2346 * parser.c (make_location): Add overload taking cp_lexer* as last
2349 * parser.c (cp_parser_simple_type_specifier): Separate tentative
2350 parses for optional type-spec and CTAD.
2352 * parser.c (cp_parser_nested_name_specifier_opt): If the token is
2353 already CPP_NESTED_NAME_SPECIFIER, leave it alone.
2355 2019-07-12 Jakub Jelinek <jakub@redhat.com>
2357 * parser.c (cp_parser_omp_clause_name): Handle order clause.
2358 (cp_parser_omp_clause_order): New function.
2359 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_ORDER.
2360 (OMP_SIMD_CLAUSE_MASK, OMP_FOR_CLAUSE_MASK): Add
2361 PRAGMA_OMP_CLAUSE_ORDER.
2362 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_ORDER.
2363 * pt.c (tsubst_omp_clauses): Likewise.
2365 2019-07-10 Paolo Carlini <paolo.carlini@oracle.com>
2367 * decl.c (get_type_quals,
2368 smallest_type_location (const cp_decl_specifier_seq*)): New.
2369 (check_tag_decl): Use smallest_type_location in error_at about
2370 multiple types in one declaration.
2371 (grokdeclarator): Use locations[ds_complex] in error_at about
2372 complex invalid; use locations[ds_storage_class] in error_at
2373 about static cdtor; use id_loc in error_at about flexible
2374 array member in union; use get_type_quals.
2376 2019-07-09 Martin Sebor <msebor@redhat.com>
2379 * cp-tree.h: Change class-key of PODs to struct and others to class.
2381 * semantics.c (finalize_nrv_r): Same.
2383 2019-07-09 Martin Sebor <msebor@redhat.com>
2386 * constexpr.c (cxx_eval_call_expression): Change class-key from class
2387 to struct and vice versa to match convention and avoid -Wclass-is-pod
2388 and -Wstruct-no-pod.
2389 * constraint.cc (get_concept_definition): Same.
2391 * cxx-pretty-print.h: Same.
2393 * logic.cc (term_list::replace): Same.
2394 * name-lookup.c (find_local_binding): Same.
2395 * pt.c (tsubst_binary_right_fold): Same.
2396 * search.c (field_accessor_p): Same.
2397 * semantics.c (expand_or_defer_fn): Same.
2399 2019-07-08 Jakub Jelinek <jakub@redhat.com>
2402 * decl2.c (cp_omp_mappable_type_1): Don't emit any note for
2403 error_mark_node type.
2405 2019-07-05 Jakub Jelinek <jakub@redhat.com>
2409 * call.c (build_new_method_call_1): Remove set but not used variable
2412 2019-07-05 Paolo Carlini <paolo.carlini@oracle.com>
2414 PR c++/67184 (again)
2416 * call.c (build_over_call): Devirtualize user-defined operators
2417 coming from a base too.
2418 (build_new_method_call_1): Do not devirtualize here.
2420 2019-07-04 Marek Polacek <polacek@redhat.com>
2423 PR c++/83374 - __is_standard_layout wrong for a class with repeated
2425 * class.c (check_bases): Set CLASSTYPE_NON_STD_LAYOUT for a class if
2426 CLASSTYPE_REPEATED_BASE_P is true.
2428 2019-07-04 Andrew Stubbs <ams@codesourcery.com>
2430 * cp-tree.h (cp_omp_emit_unmappable_type_notes): New prototype.
2431 * decl.c (cp_finish_decl): Call cp_omp_emit_unmappable_type_notes.
2432 * decl2.c (cp_omp_mappable_type): Move contents to ...
2433 (cp_omp_mappable_type_1): ... here and add note output.
2434 (cp_omp_emit_unmappable_type_notes): New function.
2435 * semantics.c (finish_omp_clauses): Call
2436 cp_omp_emit_unmappable_type_notes in four places.
2438 2019-07-03 Martin Liska <mliska@suse.cz>
2440 * call.c (build_new_op_1): Remove dead assignemts.
2441 * typeck.c (cp_build_binary_op): Likewise.
2443 2019-06-27 Jason Merrill <jason@redhat.com>
2445 PR c++/55442 - memory-hog with highly recursive constexpr.
2446 * constexpr.c (push_cx_call_context): Return depth.
2447 (cxx_eval_call_expression): Don't cache past constexpr_cache_depth.
2449 2019-06-27 Jan Hubicka <jh@suse.cz>
2451 * class.c (layout_class_type): Set TYPE_CXX_ODR_P for as-base
2454 2019-06-27 Martin Liska <mliska@suse.cz>
2456 * class.c (adjust_clone_args): Remove obviously
2458 (dump_class_hierarchy_r): Likewise.
2459 * decl.c (check_initializer): Likewise.
2460 * parser.c (cp_parser_lambda_expression): Likewise.
2461 * pt.c (unify_bound_ttp_args): Likewise.
2462 (convert_template_argument): Likewise.
2463 * rtti.c (build_headof): Likewise.
2464 * typeck.c (convert_for_initialization): Likewise.
2466 2019-06-25 Jason Merrill <jason@redhat.com>
2468 PR c++/70462 - unnecessary base ctor variant with final.
2469 * optimize.c (populate_clone_array): Skip base variant if
2471 (maybe_clone_body): We don't need an alias if we are only defining
2474 * class.c (resolves_to_fixed_type_p): Check CLASSTYPE_FINAL.
2476 2019-06-25 Jakub Jelinek <jakub@redhat.com>
2479 * constexpr.c (cxx_eval_array_reference): Don't look through VCE from
2480 vector type if lval.
2482 2019-06-25 Jozef Lawrynowicz <jozef.l@mittosystems.com>
2484 * lex.c (init_reswords): Create keyword for "__intN__" type.
2485 * cp-tree.h (cp_decl_specifier_seq): New bitfield "int_n_alt".
2486 * decl.c (grokdeclarator): Don't pedwarn about "__intN" ISO
2487 C incompatibility if alternate "__intN__" form is used.
2488 * parser.c (cp_parser_simple_type_specifier): Set
2489 decl_specs->int_n_alt if "__intN__" form is used.
2491 2019-06-24 Jan Hubicka <jh@suse.cz>
2493 * lex.c (cxx_make_type): Set TYPE_CXX_ODR_P.
2495 2019-06-24 Jason Merrill <jason@redhat.com>
2497 * class.c (layout_class_type): Don't use a separate
2498 CLASSTYPE_AS_BASE if it's the same size.
2500 2019-06-23 Marek Polacek <polacek@redhat.com>
2502 * call.c (convert_default_arg): Use DEFERRED_PARSE instead of
2504 * cp-objcp-common.c (cp_tree_size): Likewise. Use tree_deferred_parse
2505 instead of tree_default_arg.
2506 * cp-tree.def: Rename DEFAULT_ARG to DEFERRED_PARSE.
2507 * cp-tree.h: Rename DEFARG_TOKENS to DEFPARSE_TOKENS. Rename
2508 DEFARG_INSTANTIATIONS to DEFPARSE_INSTANTIATIONS. Rename
2509 tree_default_arg to tree_deferred_parse.
2510 (UNPARSED_NOEXCEPT_SPEC_P): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2511 (cp_tree_node_structure_enum): Rename TS_CP_DEFAULT_ARG to
2512 TS_CP_DEFERRED_PARSE.
2513 (lang_tree_node): Rename tree_default_arg to tree_deferred_parse.
2514 Rename default_arg to deferred_parse. Use TS_CP_DEFERRED_PARSE instead
2515 of TS_CP_DEFAULT_ARG.
2516 (defarg_location): Remove declaration.
2517 (defparse_location): Add declaration.
2518 * decl.c (grokfndecl): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2519 Call defparse_location instead of defarg_location.
2520 (check_default_argument): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2521 (cp_tree_node_structure): Likewise. Use TS_CP_DEFERRED_PARSE instead
2522 of TS_CP_DEFAULT_ARG.
2523 * decl2.c (grokfield): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2524 * error.c (dump_expr): Likewise.
2525 (location_of): Likewise.
2526 * init.c (get_nsdmi): Likewise.
2527 * parser.c (cp_parser_save_noexcept): Likewise. Use DEFPARSE_TOKENS
2528 instead of DEFARG_TOKENS.
2529 (cp_parser_late_noexcept_specifier): Likewise.
2530 (cp_parser_late_parse_one_default_arg): Use DEFPARSE_TOKENS instead
2532 (cp_parser_late_parsing_default_args): Use DEFERRED_PARSE instead of
2533 DEFAULT_ARG. Use DEFPARSE_INSTANTIATIONS instead of
2534 DEFARG_INSTANTIATIONS.
2535 (cp_parser_cache_defarg): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2536 Use DEFPARSE_TOKENS instead of DEFARG_TOKENS. Use
2537 DEFPARSE_INSTANTIATIONS instead of DEFARG_INSTANTIATIONS.
2538 (defparse_location): Renamed from defarg_location.
2539 * pt.c (tsubst_default_argument): Use DEFERRED_PARSE instead of
2541 (tsubst_arg_types): Likewise.
2542 (dependent_type_p_r): Likewise.
2543 * tree.c (cp_tree_equal): Likewise.
2544 (cp_walk_subtrees): Likewise.
2545 * typeck.c (convert_arguments): Likewise.
2547 2019-06-22 Marek Polacek <polacek@redhat.com>
2549 PR c++/86476 - noexcept-specifier is a complete-class context.
2551 * cp-tree.def (DEFAULT_ARG): Update commentary.
2552 * cp-tree.h (UNPARSED_NOEXCEPT_SPEC_P): New macro.
2553 (tree_default_arg): Use tree_base instead of tree_common.
2554 (do_push_parm_decls, maybe_check_overriding_exception_spec): Declare.
2555 * decl.c (do_push_parm_decls): New function, broken out of...
2556 (store_parm_decls): ...here. Call it.
2557 * except.c (nothrow_spec_p): Accept DEFAULT_ARG in the assert.
2558 * parser.c (cp_parser_noexcept_specification_opt,
2559 cp_parser_late_noexcept_specifier, noexcept_override_late_checks):
2561 (unparsed_noexcepts): New macro.
2562 (push_unparsed_function_queues): Update initializer.
2563 (cp_parser_direct_declarator): Pass FRIEND_P to
2564 cp_parser_exception_specification_opt.
2565 (inject_parm_decls): New.
2566 (pop_injected_parms): New.
2567 (cp_parser_class_specifier_1): Implement delayed parsing of
2568 noexcept-specifiers.
2569 (cp_parser_save_noexcept): New.
2570 (cp_parser_late_noexcept_specifier): New.
2571 (noexcept_override_late_checks): New.
2572 (cp_parser_noexcept_specification_opt): Add FRIEND_P parameter. Call
2573 cp_parser_save_noexcept instead of the normal processing if needed.
2574 (cp_parser_exception_specification_opt): Add FRIEND_P parameter and
2575 pass it to cp_parser_noexcept_specification_opt.
2576 (cp_parser_save_member_function_body): Fix comment.
2577 (cp_parser_save_default_args): Maybe save the noexcept-specifier to
2579 (cp_parser_transaction): Update call to
2580 cp_parser_noexcept_specification_opt.
2581 (cp_parser_transaction_expression): Likewise.
2582 * parser.h (cp_unparsed_functions_entry): Add new field to carry
2583 a noexcept-specifier.
2584 * pt.c (dependent_type_p_r): Handle unparsed noexcept expression.
2585 * search.c (maybe_check_overriding_exception_spec): New function, broken
2587 (check_final_overrider): ...here. Call
2588 maybe_check_overriding_exception_spec.
2589 * tree.c (canonical_eh_spec): Handle UNPARSED_NOEXCEPT_SPEC_P.
2590 (cp_tree_equal): Handle DEFAULT_ARG.
2592 PR c++/90881 - bogus -Wunused-value in unevaluated context.
2593 * cvt.c (convert_to_void): Don't emit unused warnings in
2594 an unevaluated context.
2596 2019-06-22 Paolo Carlini <paolo.carlini@oracle.com>
2598 * decl.c (grokdeclarator): Use id_loc, typespec_loc, and
2599 locations[ds_storage_class] in a few additional places.
2601 2019-06-21 Paolo Carlini <paolo.carlini@oracle.com>
2605 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2609 * call.c (build_over_call): Devirtualize when the final overrider
2610 comes from the base.
2612 2019-06-21 Marek Polacek <polacek@redhat.com>
2614 PR c++/61490 - qualified-id in friend function definition.
2615 * decl.c (grokdeclarator): Diagnose qualified-id in friend function
2616 definition. Improve location for diagnostics of friend functions.
2618 PR c++/60223 - ICE with T{} in non-deduced context.
2619 * pt.c (unify): Allow COMPOUND_LITERAL_P in a non-deduced context.
2621 PR c++/64235 - missing syntax error with invalid alignas.
2622 * parser.c (cp_parser_std_attribute_spec): Commit to tentative parse
2623 if there's a missing close paren.
2625 PR c++/90490 - fix decltype issues in noexcept-specifier.
2626 * except.c (build_noexcept_spec): Call
2627 instantiate_non_dependent_expr_sfinae before
2628 build_converted_constant_expr instead of calling
2629 instantiate_non_dependent_expr after it. Add
2630 processing_template_decl_sentinel.
2632 2019-06-21 Jakub Jelinek <jakub@redhat.com>
2635 * semantics.c (finish_omp_clauses): Don't reject references to
2636 incomplete types if processing_template_decl.
2638 2019-06-19 Marek Polacek <polacek@redhat.com>
2640 PR c++/60364 - noreturn after first decl not diagnosed.
2641 * decl.c (duplicate_decls): Give an error when a function is
2642 declared [[noreturn]] after its first declaration.
2643 * parser.c (cp_parser_std_attribute): Don't treat C++11 noreturn
2644 attribute as equivalent to GNU's.
2645 * tree.c (std_attribute_table): Add noreturn.
2647 2019-06-19 Jakub Jelinek <jakub@redhat.com>
2649 * cp-gimplify.c (cp_genericize_r): Handle OMP_CLAUSE_{IN,EX}CLUSIVE
2650 like OMP_CLAUSE_SHARED.
2652 2019-06-18 Jason Merrill <jason@redhat.com>
2654 * constexpr.c (cxx_eval_store_expression): Delay target evaluation.
2656 2019-06-18 Jason Merrill <jason@redhat.com>
2658 * constexpr.c (eval_and_check_array_index): Split out from...
2659 (cxx_eval_array_reference): ...here.
2660 (cxx_eval_store_expression): Use it here, too.
2661 (diag_array_subscript): Take location. Strip location wrapper.
2663 2019-06-18 Jason Merrill <jason@redhat.com>
2665 * constexpr.c (cxx_eval_constant_expression): Handle conversion from
2666 and then to the same type.
2668 2019-06-18 Jason Merrill <jason@redhat.com>
2670 * constexpr.c (unshare_constructor): Add MEM_STAT_DECL.
2672 2019-06-17 Jakub Jelinek <jakub@redhat.com>
2674 * semantics.c (finish_omp_clauses): For OMP_CLAUSE_REDUCTION_INSCAN
2675 set need_copy_assignment.
2677 2019-06-17 Marek Polacek <polacek@redhat.com>
2679 PR c++/83820 - excessive attribute arguments not detected.
2680 * parser.c (cp_parser_std_attribute): Detect excessive arguments.
2682 2019-06-17 Nathan Sidwell <nathan@acm.org>
2685 * name-lookup.c (lookup_type_scope_1): Calll qualify_lookup before
2688 2019-06-14 Marek Polacek <polacek@redhat.com>
2690 PR c++/90884 - stray note with -Wctor-dtor-privacy.
2691 * class.c (maybe_warn_about_overly_private_class): Guard the call to
2694 2019-06-12 Jason Merrill <jason@redhat.com>
2696 PR c++/85552 - wrong instantiation of dtor for DMI.
2697 * typeck2.c (digest_nsdmi_init): Set tf_no_cleanup for direct-init.
2699 2019-06-13 Paolo Carlini <paolo.carlini@oracle.com>
2701 * decl.c (grokdeclarator): Use id_loc in five additional places
2702 in the last part of the function.
2704 2019-06-13 Paolo Carlini <paolo.carlini@oracle.com>
2706 * decl.c (grokdeclarator): Move further up the declaration of
2707 id_loc, use it immediately, update its value after the loop
2708 over declarator, use it again in the final part of function;
2709 improve locations of error messages about multiple data types
2710 and conflicting specifiers.
2712 2019-06-13 Richard Biener <rguenther@suse.de>
2715 * typeck2.c (split_nonconstant_init_1): Properly count
2716 num_split_elts, optimize single constructor elt removal.
2718 2019-06-12 Marek Polacek <polacek@redhat.com>
2720 PR c++/66999 - 'this' captured by reference.
2721 * parser.c (cp_parser_lambda_introducer): Reject `&this'. Use
2722 cp_lexer_nth_token_is instead of cp_lexer_peek_nth_token.
2724 PR c++/90825 - endless recursion when evaluating sizeof.
2725 PR c++/90832 - endless recursion when evaluating sizeof.
2726 * constexpr.c (cxx_eval_constant_expression): Don't recurse on the
2727 result of fold_sizeof_expr if is returns a SIZEOF_EXPR.
2728 * typeck.c (cxx_sizeof_expr): Only return a SIZEOF_EXPR if the operand
2729 is instantiation-dependent.
2731 PR c++/90736 - bogus error with alignof.
2732 * constexpr.c (adjust_temp_type): Use cv_unqualified type.
2734 2019-06-11 Matthew Beliveau <mbelivea@redhat.com>
2736 PR c++/90449 - add -Winaccessible-base option.
2737 * class.c (warn_about_ambiguous_bases): Changed name to:
2738 maybe_warn_about_inaccessible_bases.
2739 (maybe_warn_about_inaccessible_bases): Implemented new
2740 Winaccessible-base warning option for both direct and virtual
2742 (layout_class_type): Call to warn_about_ambiguous_bases changed to fit
2745 2019-06-11 Richard Biener <rguenther@suse.de>
2748 * typeck2.c (split_nonconstant_init_1): Avoid ordered remove
2749 from CONSTRUCTOR by marking to remove elements and doing all
2750 of them in a O(n) scan.
2752 2019-06-11 Jakub Jelinek <jakub@redhat.com>
2755 * init.c (constant_value_1): Handle VECTOR_CST DECL_INITIAL for
2756 !DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P decls like CONSTRUCTOR.
2758 2019-06-11 Martin Liska <mliska@suse.cz>
2761 * pt.c (init_template_processing): Disable hash table
2762 sanitization for decl_specializations and type_specializations.
2764 2019-06-10 Jason Merrill <jason@redhat.com>
2766 * constexpr.c (free_constructor): New.
2767 (cxx_eval_call_expression): Free parameter value CONSTRUCTORs.
2769 * constexpr.c (unshare_constructor): Only unshare if T is itself a
2771 (cxx_eval_call_expression): Don't call it on the result here.
2773 Reduce constexpr_call memory consumption.
2774 * constexpr.c (cxx_bind_parameters_in_call): Use TREE_VEC rather
2776 (constexpr_call_hasher::equal, cxx_bind_parameters_in_call)
2777 (cxx_eval_call_expression): Adjust.
2779 2019-06-10 Jakub Jelinek <jakub@redhat.com>
2781 * parser.c (cp_parser_omp_clause_reduction): Don't sorry_at on inscan
2783 (cp_parser_omp_scan_loop_body): New function.
2784 (cp_parser_omp_for_loop): Call cp_parser_omp_scan_loop_body if there
2785 are inscan reduction clauses.
2786 (cp_parser_pragma): Reject PRAGMA_OMP_SCAN.
2787 * semantics.c (finish_omp_clauses): Reject mixing inscan with
2788 non-inscan reductions on the same construct, or inscan reductions with
2789 ordered or schedule clauses, or inscan array reductions.
2790 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_{IN,EX}CLUSIVE.
2791 (tsubst_expr): Handle OMP_SCAN.
2793 2019-06-07 Jason Merrill <jason@redhat.com>
2795 * constexpr.c (cxx_eval_constant_expression): Call
2796 STRIP_ANY_LOCATION_WRAPPER early.
2797 [CONVERT_EXPR]: Don't build anything for conversion to void.
2798 [ADDR_EXPR]: ggc_free unused ADDR_EXPR.
2800 2019-06-05 Martin Sebor <msebor@redhat.com>
2803 * typeck.c (maybe_warn_about_returning_address_of_local): Only
2804 consider functions returning pointers as candidates for
2805 -Wreturn-local-addr.
2807 2019-06-05 Paolo Carlini <paolo.carlini@oracle.com>
2809 * decl.c (smallest_type_location): New.
2810 (check_special_function_return_type): Use it.
2811 (grokdeclarator): Lkewise.
2813 2019-06-05 Paolo Carlini <paolo.carlini@oracle.com>
2815 * decl.c (grokdeclarator): Use locations[ds_friend]
2818 2019-06-05 Martin Sebor <msebor@redhat.com>
2820 * call.c (build_conditional_expr_1): Adjust quoting and hyphenation.
2821 (convert_like_real): Same.
2822 (convert_arg_to_ellipsis): Same.
2823 * constexpr.c (diag_array_subscript): Same.
2824 * constraint.cc (diagnose_trait_expression): Same.
2825 * cvt.c (ocp_convert): Same.
2826 * decl.c (start_decl): Same.
2827 (check_for_uninitialized_const_var): Same.
2829 (check_special_function_return_type): Same.
2830 (finish_enum_value_list): Same.
2831 (start_preparsed_function): Same.
2832 * parser.c (cp_parser_decl_specifier_seq): Same.
2833 * typeck.c (cp_build_binary_op): Same.
2834 (build_static_cast_1): Same.
2836 2019-06-04 Nina Dinka Ranns <dinka.ranns@gmail.com>
2838 PR c++/63149 - Wrong auto deduction from braced-init-list.
2839 * pt.c (listify_autos): use non cv qualified auto_node in
2840 std::initializer_list<auto>.
2842 2019-06-04 Paolo Carlini <paolo.carlini@oracle.com>
2844 * decl.c (grokdeclarator): Use declarator->id_loc in two
2847 2019-06-04 Nathan Sidwell <nathan@acm.org>
2849 * name-lookup.c (lookup_type_scope_1): Reimplement, handle local
2850 and namespace scopes separately.
2852 2019-06-04 Harald van Dijk <harald@gigawatt.nl>
2854 PR c++/60531 - Wrong error about unresolved overloaded function
2855 * typeck.c (cp_build_binary_op): See if overload can be resolved.
2856 (cp_build_unary_op): Ditto.
2858 2019-06-04 Jason Merrill <jason@redhat.com>
2860 Reduce accumulated garbage in constexpr evaluation.
2861 * constexpr.c (cxx_eval_call_expression): ggc_free any bindings we
2863 (cxx_eval_increment_expression): ggc_free the MODIFY_EXPR after
2866 2019-06-04 Jakub Jelinek <jakub@redhat.com>
2868 * cp-tree.h (CP_OMP_CLAUSE_INFO): Allow for any clauses up to _condvar_
2869 instead of only up to linear.
2871 2019-06-03 Paolo Carlini <paolo.carlini@oracle.com>
2873 * parser.c (cp_parser_unqualified_id): Use build_min_nt_loc in
2876 2019-06-01 Ville Voutilainen <ville.voutilainen@gmail.com>
2879 * class.c (fixup_type_variants): Handle CLASSTYPE_FINAL.
2881 2019-05-31 Nathan Sidwell <nathan@acm.org>
2883 * cp-tree.h (IDENTIFIER_LAMBDA_P): New.
2885 (LAMBDA_TYPE_P, TYPE_UNNAMED_P): Likewise.
2886 (LAMBDANAME_PREFIX, LAMBDANAME_FORMAT): Delete.
2887 (make_lambda_name): Don't declare.
2888 * error.c (dump_aggr_type): Check for lambdas before other
2890 * lambda.c (begin_lambda_type): Use make_anon_name.
2891 * cp-lang.c (cxx_dwarf_name): Lambda names smell anonymous.
2892 * mangle.c (write_local_name): Likewise.
2893 * name-lookup.c (lambda_cnt, make_lambda_name): Delete.
2895 2019-05-30 Marek Polacek <polacek@redhat.com>
2897 * cp-tree.h (TYPE_HAS_NONTRIVIAL_DESTRUCTOR): Fix a typo.
2899 2019-05-31 Paolo Carlini <paolo.carlini@oracle.com>
2901 * decl.c (grokdeclarator): Use declarator->id_loc in five
2904 2019-05-29 Jakub Jelinek <jakub@redhat.com>
2907 * tree.c (lvalue_kind): Return clk_none for expressions with
2910 2019-05-29 Paolo Carlini <paolo.carlini@oracle.com>
2913 * parser.c (cp_parser_sizeof_operand): When the type-id production
2914 did not work out commit to the tentative parse.
2916 2019-05-29 Jakub Jelinek <jakub@redhat.com>
2918 P1091R3 - Extending structured bindings to be more like var decls
2919 P1381R1 - Reference capture of structured bindings
2920 * decl.c (cp_maybe_mangle_decomp): Handle TREE_STATIC decls even at
2922 (cp_finish_decomp): Copy over various decl properties from decl to
2923 v[i] in the tuple case.
2924 (grokdeclarator): Allow static, thread_local and __thread for C++2a
2925 and use pedwarn instead of error for older standard revisions.
2926 Make other structured binding diagnostic messages more i18n friendly.
2928 2019-05-28 Nathan Sidwell <nathan@acm.org>
2930 * decl.c (duplicate_decls): Assert a template newdecl has no
2933 2019-05-28 Marek Polacek <polacek@redhat.com>
2935 PR c++/90548 - ICE with generic lambda and empty pack.
2936 * pt.c (tsubst_copy_and_build): Handle pack expansion properly.
2938 2019-05-28 Nathan Sidwell <nathan@acm.org>
2940 * cp-tree.h (make_anon_name): Drop declaration.
2941 (TYPE_UNNAMED_P): Use IDENTIFIER_ANON_P.
2942 * cp-lang.c (cxx_dwarf_name): Likewise.
2943 * class.c (find_flexarrays): Likewise.
2944 * decl.c (name_unnamed_type, xref_tag_1): Likewise.
2945 * error.c (dump_aggr_type): Likewise.
2946 * pt.c (push_template_decl_real): Likewise.
2947 * name-lookup.c (consider_binding_level): Likewise.
2948 (anon_cnt, make_anon_name): Delete.
2950 2019-05-25 Marek Polacek <polacek@redhat.com>
2952 PR c++/90572 - wrong disambiguation in friend declaration.
2953 * parser.c (cp_parser_constructor_declarator_p): Don't allow missing
2954 typename for friend declarations.
2956 2019-05-23 Jonathan Wakely <jwakely@redhat.com>
2958 * cp-tree.h (CP_AGGREGATE_TYPE_P): Fix whitespace.
2960 * init.c (std_placement_new_fn_p): Remove outdated TODO comment that
2961 was resolved by r254694.
2963 2019-05-22 Jason Merrill <jason@redhat.com>
2965 PR c++/20408 - unnecessary code for empty struct.
2966 * call.c (build_call_a): Use simple_empty_class_p.
2968 PR c++/86485 - -Wmaybe-unused with empty class ?:
2969 * cp-gimplify.c (simple_empty_class_p): Also true for MODIFY_EXPR.
2971 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2973 * parser.c (cp_parser_template_declaration_after_parameters): Use
2974 DECL_SOURCE_LOCATION in literal operator template errors.
2976 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2980 * call.c (build_over_call): Devirtualize when the final overrider
2981 comes from the base.
2983 2019-05-21 Nathan Sidwell <nathan@acm.org>
2985 * name-lookup.c (do_nonmember_using_decl): Drop INSERT_P
2986 parameter. Document.
2987 (finish_nonmember_using_decl): Adjust do_nonmember_using_decl
2988 calls. Remove stray FIXME comment.
2990 * name-lookup.h (struct cp_binding_level): Drop usings field.
2991 (finish_namespace_using_decl, finish_local_using_decl): Replace with ...
2992 (finish_nonmember_using_decl): ... this.
2993 * name-lookup.c (push_using_decl_1, push_using_decl):
2994 (do_nonmember_using_decl): ... here. Add INSERT_P arg. Reimplement.
2995 (validate_nonmember_using_decl, finish_namespace_using_decl)
2996 (finish_local_using_decl): Replace with ...
2997 (finish_nonmember_using_decl): ... this. Drop DECL parm.
2998 * parser.c (cp_parser_using_declaration): Don't do lookup here.
2999 * pt.c (tsubst_expr): Do not do using decl lookup here.
3001 2019-05-21 Eric Botcazou <ebotcazou@adacore.com>
3003 * decl2.c (cpp_check) <IS_ASSIGNMENT_OPERATOR>: New case.
3005 2019-05-20 Marek Polacek <polacek@redhat.com>
3007 CWG 2094 - volatile scalars are trivially copyable.
3009 * tree.c (trivially_copyable_p): Don't check CP_TYPE_VOLATILE_P for
3012 2019-05-20 Marek Polacek <polacek@redhat.com>
3014 * pt.c (convert_template_argument): Add a diagnostic for the
3015 [temp.arg]/2 ambiguity case.
3017 * name-lookup.c (finish_using_directive): Don't issue inform() if the
3018 warning didn't trigger. Add quoting. Tweak the inform message.
3020 2019-05-20 Paolo Carlini <paolo.carlini@oracle.com>
3022 * cp-tree.h: Remove remnants of CONV_NONCONVERTING.
3024 2019-05-20 Nathan Sidwell <nathan@acm.org>
3026 * name-lookup.c (finish_namespace_using_directive)
3027 (finish_local_using_directive): Merge to ...
3028 (finish_using_directive): ... here. Handle both contexts.
3029 * name-lookup.h (finish_namespace_using_directive)
3030 (finish_local_using_directive): Replace with ...
3031 (finish_using_directive): ... this.
3032 * parser.c (cp_parser_using_directive): Adjust.
3033 * pt.c (tsubst_expr): Likewise.
3035 * cp-tree.h (struct lang_decl_ns): Remove usings field.
3036 (DECL_NAMESPACE_USING): Delete.
3037 * name-lookup.c (name_lookup::search_usings): Use namespace's
3039 (name_lookup::queue_namespae): Likewise.
3040 (finish_namespace_using_directive, push_namespace): Likewise.
3041 (has_using_namespace_std_directive): Just search the entire
3044 2019-05-20 Jonathan Wakely <jwakely@redhat.com>
3046 PR c++/90532 Ensure __is_constructible(T[]) is false
3047 * method.c (is_xible_helper): Return error_mark_node for construction
3048 of an array of unknown bound.
3050 2019-05-17 Thomas Schwinge <thomas@codesourcery.com>
3053 * parser.c (cp_finalize_oacc_routine): Rework checking if already
3054 marked with an OpenACC 'routine' directive.
3057 * parser.c (cp_parser_oacc_routine)
3058 (cp_parser_late_parsing_oacc_routine): Normalize order of clauses.
3059 (cp_finalize_oacc_routine): Call oacc_verify_routine_clauses.
3062 * parser.c (cp_finalize_oacc_routine): Refer to OpenACC 'routine'
3063 clauses from "omp declare target" attribute.
3065 2019-05-16 Martin Sebor <msebor@redhat.com>
3067 * call.c (print_z_candidate): Wrap diagnostic text in a gettext
3069 (print_z_candidates): Same.
3070 (build_conditional_expr_1): Quote keywords, operators, and types
3072 (build_op_delete_call): Same.
3073 (maybe_print_user_conv_context): Wrap diagnostic text in a gettext
3075 (convert_like_real): Same.
3076 (convert_arg_to_ellipsis): Quote keywords, operators, and types
3078 (build_over_call): Same.
3079 (joust): Break up an overlong line. Wrap diagnostic text in a gettext
3081 * constexpr.c (cxx_eval_check_shift_p): Spell out >= in English.
3082 (cxx_eval_constant_expression): Quote keywords, operators, and types
3084 (potential_constant_expression_1): Same.
3085 * cp-gimplify.c (cp_genericize_r): Same.
3086 * cvt.c (maybe_warn_nodiscard): Quote keywords, operators, and types
3088 (type_promotes_to): Same.
3089 * decl.c (check_previous_goto_1): Same.
3092 (cp_finish_decl): Avoid parenthesizing a sentence for consistency.
3093 (grok_op_properties): Quote keywords, operators, and types
3095 * decl2.c (grokfield): Same.
3096 (coerce_delete_type): Same.
3097 * except.c (is_admissible_throw_operand_or_catch_parameter): Same.
3098 * friend.c (do_friend): Quote C++ tokens.
3099 * init.c (build_new_1): Quote keywords, operators, and types
3101 (build_vec_delete_1): Same.
3102 (build_delete): Same.
3103 * lex.c (parse_strconst_pragma): Same.
3104 (handle_pragma_implementation): Same.
3105 (unqualified_fn_lookup_error): Same.
3106 * mangle.c (write_type): Same.
3107 * method.c (defaulted_late_check): Avoid two consecutive punctuators.
3108 * name-lookup.c (cp_binding_level_debug): Remove a trailing newline.
3109 (pop_everything): Same.
3110 * parser.c (cp_lexer_start_debugging): Quote a macro name.
3112 (cp_lexer_stop_debugging): Same.
3113 (cp_parser_userdef_numeric_literal): Quote a C++ header name
3115 (cp_parser_nested_name_specifier_opt): Quote keywords, operators,
3116 and types in diagnostics.
3117 (cp_parser_question_colon_clause): Same.
3118 (cp_parser_asm_definition): Same.
3119 (cp_parser_init_declarator): Same.
3120 (cp_parser_template_declaration_after_parameters): Avoid capitalizing
3121 a sentence in a diagnostic.
3122 (cp_parser_omp_declare_reduction): Quote keywords, operators, and types
3124 (cp_parser_transaction): Same.
3125 * pt.c (maybe_process_partial_specialization): Replace second call
3126 to permerror with inform for consistency with other uses.
3127 (expand_integer_pack): Quote keywords, operators, and types
3129 * rtti.c (get_typeid): Quote keywords, operators, and types
3131 (build_dynamic_cast_1): Same.
3132 * semantics.c (finish_asm_stmt): Same.
3133 (finish_label_decl): Same.
3134 (finish_bases): Same.
3135 (finish_offsetof): Same.
3136 (cp_check_omp_declare_reduction): Same.
3137 (finish_decltype_type): Same.
3138 * tree.c (handle_init_priority_attribute): Same. Add detail
3140 (maybe_warn_zero_as_null_pointer_constant): Same.
3141 * typeck.c (cp_build_binary_op): Quote keywords, operators, and types
3143 (cp_build_unary_op): Same.
3144 (check_for_casting_away_constness): Same.
3145 (build_static_cast): Same.
3146 (build_const_cast_1): Same.
3147 (maybe_warn_about_returning_address_of_local): Same.
3148 (check_return_expr): Same.
3149 * typeck2.c (abstract_virtuals_error_sfinae): Same.
3150 (digest_init_r): Replace a tab with spaces in a diagnostic.
3151 (build_functional_cast): Quote keywords, operators, and types
3154 2019-05-15 Jakub Jelinek <jakub@redhat.com>
3157 * cp-gimplify.c (genericize_cp_loop): Emit a DEBUG_BEGIN_STMT
3158 before the condition (or if missing or constant non-zero at the end
3159 of the loop. Emit a DEBUG_BEGIN_STMT before the increment expression
3160 if any. Don't call protected_set_expr_location on incr if it already
3163 2019-05-15 Marek Polacek <polacek@redhat.com>
3165 CWG 2096 - constraints on literal unions.
3166 * class.c (check_field_decls): Initialize booleans directly. A union
3167 is literal if at least one of its non-static data members is of
3168 non-volatile literal type.
3170 2019-05-15 Paolo Carlini <paolo.carlini@oracle.com>
3172 * cp-tree.h (REFERENCE_VLA_OK): Remove.
3173 * lambda.c (build_capture_proxy): Remove use of the above.
3175 2019-05-15 Paolo Carlini <paolo.carlini@oracle.com>
3177 * call.c (perform_overload_resolution, build_new_method_call_1):
3178 Use OVL_P; remove redundant TEMPLATE_DECL checks.
3179 * decl.c (grokfndecl): Likewise.
3180 * mangle.c (write_expression): Likewise.
3181 * parser.c (cp_parser_template_id): Likewise.
3182 * pt.c (resolve_overloaded_unification, type_dependent_expression_p):
3184 * search.c (build_baselink): Likewise.
3185 * tree.c (is_overloaded_fn, dependent_name, maybe_get_fns): Likewise.
3187 2019-05-14 Paolo Carlini <paolo.carlini@oracle.com>
3189 PR preprocessor/90382
3190 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3193 2019-05-13 Jason Merrill <jason@redhat.com>
3195 Use releasing_vec more broadly.
3196 * cp-tree.h (struct releasing_vec): Replace get_ref method with
3198 (vec_safe_push, vec_safe_reserve, vec_safe_length, vec_safe_splice):
3199 Forwarding functions for releasing_vec.
3200 (release_tree_vector): Declare but don't define.
3201 * call.c (build_op_delete_call, build_temp, call_copy_ctor)
3202 (perform_direct_initialization_if_possible): Use releasing_vec.
3203 * constexpr.c (cxx_eval_vec_init_1, cxx_eval_store_expression):
3205 * cp-gimplify.c (cp_fold): Likewise.
3206 * cvt.c (force_rvalue, ocp_convert): Likewise.
3207 * decl.c (get_tuple_decomp_init): Likewise.
3208 * except.c (build_throw): Likewise.
3209 * init.c (perform_member_init, expand_default_init): Likewise.
3210 * method.c (do_build_copy_assign, locate_fn_flags): Likewise.
3211 * parser.c (cp_parser_userdef_char_literal)
3212 (cp_parser_userdef_numeric_literal)
3213 (cp_parser_userdef_string_literal)
3214 (cp_parser_perform_range_for_lookup)
3215 (cp_parser_range_for_member_function, cp_parser_omp_for_loop)
3216 (cp_parser_omp_for_loop_init): Likewise.
3217 * pt.c (tsubst_copy_and_build, do_class_deduction): Likewise.
3218 * semantics.c (calculate_direct_bases, calculate_bases)
3219 (finish_omp_barrier, finish_omp_flush, finish_omp_taskwait)
3220 (finish_omp_taskyield, finish_omp_cancel)
3221 (finish_omp_cancellation_point): Likewise.
3222 * tree.c (build_vec_init_elt, strip_typedefs, strip_typedefs_expr)
3223 (build_min_non_dep_op_overload): Likewise.
3224 * typeck.c (build_function_call_vec, cp_build_function_call_nary)
3225 (cp_build_modify_expr): Likewise.
3226 * typeck2.c (build_functional_cast): Likewise.
3228 2019-05-11 Paolo Carlini <paolo.carlini@oracle.com>
3230 * typeck.c (cp_build_function_call_vec): When mark_used fails
3231 unconditionally return error_mark_node.
3233 2019-05-10 Paolo Carlini <paolo.carlini@oracle.com>
3235 * decl.c (grokvardecl): Use an accurate location in error message
3236 about main as a global variable.
3238 2019-05-10 Paolo Carlini <paolo.carlini@oracle.com>
3240 * call.c (build_call_a): Use FUNC_OR_METHOD_TYPE_P.
3241 * cp-gimplify.c (cp_fold): Likewise.
3242 * cp-objcp-common.c (cp_type_dwarf_attribute): Likewise.
3243 * cp-tree.h (TYPE_OBJ_P, TYPE_PTROBV_P): Likewise.
3244 * cvt.c (perform_qualification_conversions): Likewise.
3245 * decl.c (grokdeclarator): Likewise.
3246 * decl2.c (build_memfn_type): Likewise.
3247 * mangle.c (canonicalize_for_substitution, write_type): Likewise.
3248 * parser.c (cp_parser_omp_declare_reduction): Likewise.
3249 * pt.c (check_explicit_specialization, uses_deducible_template_parms,
3250 check_cv_quals_for_unify, dependent_type_p_r): Likewise.
3251 * rtti.c (ptr_initializer): Likewise.
3252 * semantics.c (finish_asm_stmt, finish_offsetof,
3253 cp_check_omp_declare_reduction): Likewise.
3254 * tree.c (cp_build_qualified_type_real,
3255 cp_build_type_attribute_variant, cxx_type_hash_eq,
3256 cxx_copy_lang_qualifiers, cp_free_lang_data): Likewise.
3257 * typeck.c (structural_comptypes, convert_arguments,
3258 cp_build_addr_expr_1, unary_complex_lvalue, cp_build_c_cast,
3259 cp_build_modify_expr, comp_ptr_ttypes_real, type_memfn_rqual):
3262 2019-05-10 Marek Polacek <polacek@redhat.com>
3264 PR c++/78010 - bogus -Wsuggest-override warning on final function.
3265 * class.c (check_for_override): Don't warn for final functions.
3267 2019-05-10 Jakub Jelinek <jakub@redhat.com>
3270 * config-lang.in (gtfiles): Remove c-family/c-lex.c, add
3271 c-family/c-cppbuiltin.c.
3273 2019-05-09 Paolo Carlini <paolo.carlini@oracle.com>
3277 2018-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3279 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3282 2019-05-08 Nathan Sidwell <nathan@acm.org>
3284 Kill DECL_SAVED_FUNCTION_DATA .
3285 * cp-tree.h (language_function): Remove x_auto_return_pattern.
3286 (current_function_auto_return_pattern): Delete.
3287 (lang_decl_fn): Replace saved_language_function with
3288 saved_auto_return type.
3289 (DECL_SAVED_FUNCTION_DATA): Delete.
3290 (DECL_SAVED_AUTO_RETURN_TYPE): New.
3291 (FNDECL_USED_AUTO): Correct documentation.
3292 * decl.c (duplicate_decls): Adjust AUTO return handling.
3293 (start_preparsed_function): Replace
3294 current_function_auto_return_pattern with
3295 DECL_SAVED_AUTO_RETURN_TYPE. Remove DECL_SAVED_FUNCTION_DATA
3297 (finish_function): Likewise.
3298 (save_function_data): Delete.
3299 (fndecl_declared_return_type): Reimplement.
3300 * mangle.c (write_unqualified_name): Use DECL_SAVED_AUTO_RETURN_TYPE.
3301 * method.c (make_thunk, make_alias_for): Likewise.
3302 * parser.c (cp_parser_jump_statement): Likewise.
3303 * pt.c (do_auto_deduction): Likewise.
3304 * typeck.c (check_return_expr): Likewise.
3306 2019-05-06 Jason Merrill <jason@redhat.com>
3308 PR c++/90171 - reorganize usual_deallocation_fn_p
3309 * call.c (struct dealloc_info): New.
3310 (usual_deallocation_fn_p): Take a dealloc_info*.
3311 (aligned_deallocation_fn_p, sized_deallocation_fn_p): Remove.
3312 (build_op_delete_call): Adjust.
3314 2019-05-07 Jason Merrill <jason@redhat.com>
3316 PR c++/86485 - -Wmaybe-unused with empty class ?:
3317 * typeck.c (build_static_cast_1): Use cp_build_addr_expr.
3319 * pt.c (type_dependent_expression_p): A non-type template parm with
3320 a placeholder type is type-dependent.
3322 2019-05-06 Marek Polacek <polacek@redhat.com>
3324 PR c++/90265 - ICE with generic lambda.
3325 * pt.c (tsubst_copy_and_build): Use a dedicated variable for the last
3326 element in the vector.
3328 2019-05-03 Martin Liska <mliska@suse.cz>
3330 * call.c (build_aggr_conv): Use is_empty instead of
3331 elements () == 0 (and similar usages).
3332 * parser.c (cp_parser_lambda_introducer): Likewise.
3334 2019-05-02 Nathan Sidwell <nathan@acm.org>
3336 * semantics.c (finish_id_expression_1): Remove unreachable code.
3338 2019-05-01 Nathan Sidwell <nathan@acm.org>
3340 * name-lookup.h (get_class_binding_direct): Change final arg to
3342 (get_class_binding): Likewise.
3343 * name-lookup.c (get_class_binding_direct): Replace TYPE_OR_FNS
3344 arg with WANT_TYPE bool. Simplify.
3345 (get_class_binding): Adjust final arg.
3346 * decl.c (reshape_init_class): Adjust get_class_binding calls.
3348 2019-04-30 Nathan Sidwell <nathan@acm.org>
3350 * cp-objcp-common.c (cp_common_init_ts): Use MARK_TS_EXP for _EXPR
3351 nodes. Call c_common_init_ts.
3353 2019-04-29 Nathan Sidwell <nathan@acm.org>
3355 * decl.c (duplicate_decls): Add whitespace, move comments into
3357 * method.c (explain_implicit_non_constexpr): Refactor.
3358 * pt.c (check_explicit_specialization): Fix indentation.
3359 * semantics.c (process_outer_var_ref): Reformat.
3360 (finish_id_expression_1): Use STRIP_TEMPLATE.
3362 2019-04-26 Jonathan Wakely <jwakely@redhat.com>
3364 PR c++/90243 - orphaned note in uninstantiated constexpr function
3365 * decl.c (check_for_uninitialized_const_var): Suppress notes if no
3368 2019-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3371 * decl.c (grokdeclarator): Set type to error_mark_node
3372 upon error about template placeholder type non followed
3373 by a simple declarator-id.
3375 2019-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3377 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3380 2019-04-24 Jason Merrill <jason@redhat.com>
3382 PR c++/90227 - error with template parameter packs.
3383 * pt.c (coerce_template_parms): Do add empty pack when
3386 2019-04-24 Richard Biener <rguenther@suse.de>
3388 * call.c (null_ptr_cst_p): Order checks according to expensiveness.
3389 (conversion_null_warnings): Likewise.
3390 * typeck.c (same_type_ignoring_top_level_qualifiers_p): Return
3391 early if type1 == type2.
3393 2019-04-22 Jason Merrill <jason@redhat.com>
3395 PR c++/87366 - wrong error with alias template.
3396 * typeck.c (structural_comptypes): When comparing_specializations,
3397 aliases are unequal.
3398 (comptypes): When comparing_specializations, do structural
3401 2019-04-19 Jason Merrill <jason@redhat.com>
3403 PR c++/90190 - CTAD with list-constructor.
3404 * pt.c (do_class_deduction): Don't try the single element deduction
3405 if the single element is also a braced list.
3407 PR c++/90171 - ICE with destroying delete with size_t parm.
3408 * call.c (sized_deallocation_fn_p): New. Use it instead of
3409 second_parm_is_size_t in most cases.
3410 (second_parm_is_size_t): Don't check for aligned.
3412 2019-04-19 Paolo Carlini <paolo.carlini@oracle.com>
3415 * pt.c (fn_type_unification): When handling null explicit
3416 arguments do not special case non-parameter packs.
3418 2019-04-19 Jakub Jelinek <jakub@redhat.com>
3421 * pt.c (process_template_parm): Set decl to pushdecl result. If
3422 !is_non_type, also set parm to that.
3425 * decl.c (struct cp_switch): Remove outside_range_p member.
3426 (push_switch): Don't clear it.
3427 (pop_switch): Adjust c_do_switch_warnings caller.
3428 (finish_case_label): Adjust c_add_case_label caller.
3431 * decl.c (duplicate_decls): If remove is main variant and
3432 DECL_ORIGINAL_TYPE is some other type, remove a DECL_ORIGINAL_TYPE
3433 variant that has newdecl as TYPE_NAME if any.
3435 2019-04-18 Jason Merrill <jason@redhat.com>
3437 PR c++/87554 - ICE with extern template and reference member.
3438 * decl.c (cp_finish_decl): Don't set DECL_INITIAL of external vars.
3440 2019-04-17 Jason Merrill <jason@redhat.com>
3442 PR c++/90047 - ICE with enable_if alias template.
3443 * pt.c (tsubst_decl) [TYPE_DECL]: Don't put an erroneous decl in the
3444 hash table when we're in SFINAE context.
3446 2019-04-17 Marek Polacek <polacek@redhat.com>
3448 PR c++/90124 - bogus error with incomplete type in decltype.
3449 * typeck.c (build_class_member_access_expr): Check
3450 cp_unevaluated_operand.
3452 2019-04-12 Jakub Jelinek <jakub@redhat.com>
3455 * decl.c (duplicate_decls): When newdecl's type is its main variant,
3456 don't try to remove it from the variant list, but instead assert
3459 2019-04-12 Martin Sebor <msebor@redhat.com>
3463 * parser.c (cp_parser_has_attribute_expression): Handle assignment
3466 2019-04-12 Jason Merrill <jason@redhat.com>
3468 * call.c (null_member_pointer_value_p): Handle an empty CONSTRUCTOR
3471 2019-04-12 Marek Polacek <polacek@redhat.com>
3473 * except.c (build_noexcept_spec): Use build_converted_constant_bool_expr
3474 instead of perform_implicit_conversion_flags.
3476 PR c++/87603 - constexpr functions are no longer noexcept.
3477 * constexpr.c (is_sub_constant_expr): Remove unused function.
3478 * cp-tree.h (is_sub_constant_expr): Remove declaration.
3479 * except.c (check_noexcept_r): Don't consider a call to a constexpr
3482 2019-04-11 Jakub Jelinek <jakub@redhat.com>
3484 PR translation/90035
3485 * parser.h (struct cp_parser): Add
3486 type_definition_forbidden_message_arg member.
3487 * parser.c (cp_debug_parser): Print it.
3488 (cp_parser_check_type_definition): Pass
3489 parser->type_definition_forbidden_message_arg as second argument to
3491 (cp_parser_has_attribute_expression, cp_parser_sizeof_operand): Set
3492 parser->type_definition_forbidden_message_arg and use G_() with
3493 %qs for parser->type_definition_forbidden_message instead of
3494 building untranslatable message using concat.
3496 2019-04-09 Jakub Jelinek <jakub@redhat.com>
3498 PR translation/90011
3499 * typeck2.c (check_narrowing): Remove trailing space from diagnostics.
3501 2019-04-08 Marek Polacek <polacek@redhat.com>
3503 * typeck2.c (digest_init_r): Don't condition the object slicing warning
3506 2019-04-08 Paolo Carlini <paolo.carlini@oracle.com>
3509 * semantics.c (trait_expr_value): Don't use TYPE_NOTHROW_P
3510 when maybe_instantiate_noexcept fails.
3511 (classtype_has_nothrow_assign_or_copy_p): Likewise.
3512 * method.c (implicitly_declare_fn): Avoid passing error_mark_node
3513 to build_exception_variant.
3515 2019-04-05 Marek Polacek <polacek@redhat.com>
3517 PR c++/87145 - bogus error converting class type in template arg list.
3518 * pt.c (convert_nontype_argument): Don't call
3519 build_converted_constant_expr if it could involve calling a conversion
3520 function with a instantiation-dependent constructor as its argument.
3522 2019-04-05 Martin Sebor <msebor@redhat.com>
3525 * decl.c (reshape_init_array_1): Avoid treating empty strings
3526 as zeros in array initializers.
3527 Use trivial_type_p () instead of TYPE_HAS_TRIVIAL_DFLT().
3529 2019-04-04 Jason Merrill <jason@redhat.com>
3531 PR c++/89948 - ICE with break in statement-expr.
3532 * constexpr.c (cxx_eval_statement_list): Jumping out of a
3533 statement-expr is non-constant.
3535 2019-04-04 Jason Merrill <jason@redhat.com>
3537 PR c++/89966 - error with non-type auto tparm.
3538 * pt.c (do_auto_deduction): Clear tf_partial.
3540 2019-04-04 Jason Merrill <jason@redhat.com>
3542 PR c++/86986 - ICE with TTP with parameter pack.
3543 * pt.c (coerce_template_parameter_pack): Only look at the type of a
3544 non-type parameter pack.
3545 (fixed_parameter_pack_p_1): Don't recurse into the type of a
3546 non-type parameter pack.
3547 (coerce_template_template_parms): Call add_outermost_template_args.
3549 2019-04-04 Martin Sebor <msebor@redhat.com>
3555 * decl.c (reshape_init_array_1): Strip trailing zero-initializers
3556 from arrays of trivial type and known size.
3557 * mangle.c (write_expression): Convert braced initializer lists
3559 (write_expression): Trim trailing zero-initializers from arrays
3561 (write_template_arg_literal): Mangle strings the same as braced
3564 2019-04-03 Jason Merrill <jason@redhat.com>
3566 PR c++/81866 - ICE with member template and default targ.
3567 * pt.c (tsubst_template_decl): Handle getting a type from
3568 retrieve_specialization.
3570 PR c++/86586 - -fcompare-debug=-Wsign-compare.
3571 * typeck.c (cp_build_binary_op): Don't fold for -Wsign-compare.
3573 PR c++/89331 - ICE with offsetof in incomplete class.
3574 * semantics.c (finish_offsetof): Handle error_mark_node.
3575 * typeck.c (build_class_member_access_expr): Call
3576 complete_type_or_maybe_complain before converting to base.
3578 PR c++/89917 - ICE with lambda in variadic mem-init.
3579 * pt.c (make_pack_expansion): Change type_pack_expansion_p to false.
3581 2019-04-01 Jason Merrill <jason@redhat.com>
3583 PR c++/86946 - ICE with function call in template argument.
3585 * pt.c (iterative_hash_template_arg) [CALL_EXPR]: Use
3588 2019-04-01 Paolo Carlini <paolo.carlini@oracle.com>
3591 * pt.c (tsubst_copy): Deal with lookup_name not returing a variable.
3593 2019-03-31 Marek Polacek <polacek@redhat.com>
3595 PR c++/89852 - ICE with C++11 functional cast with { }.
3596 * constexpr.c (fold_non_dependent_expr_template): New static function
3598 (fold_non_dependent_expr): ...here.
3599 (fold_non_dependent_init): New function.
3600 * cp-tree.h (fold_non_dependent_init): Declare.
3601 * typeck2.c (massage_init_elt): Call fold_non_dependent_init instead
3602 of fold_non_dependent_expr. Don't call maybe_constant_init.
3604 2019-03-30 Jason Merrill <jason@redhat.com>
3606 PR c++/89744 - ICE with specialization of member class template.
3607 * pt.c (lookup_template_class_1): If the partial instantiation is
3608 explicitly specialized, adjust.
3609 (maybe_process_partial_specialization): Also adjust
3612 2019-03-29 Jakub Jelinek <jakub@redhat.com>
3615 * typeck.c: Include gimplify.h.
3616 (cp_build_modify_expr) <case COND_EXPR>: Unshare rhs before using it
3617 for second time. Formatting fixes.
3619 2019-03-29 Marek Polacek <polacek@redhat.com>
3621 PR c++/89876 - ICE with deprecated conversion.
3622 * call.c (convert_like_real): Only give warnings with tf_warning.
3624 2019-03-28 Marek Polacek <polacek@redhat.com>
3626 PR c++/89612 - ICE with member friend template with noexcept.
3627 * pt.c (maybe_instantiate_noexcept): For function templates, use their
3628 template result (function decl). Don't set up local specializations.
3629 Temporarily turn on processing_template_decl. Update the template type
3632 PR c++/89836 - bool constant expression and explicit conversions.
3633 * call.c (build_converted_constant_expr_internal): New function,
3635 (build_converted_constant_expr): ...this. New.
3636 (build_converted_constant_bool_expr): New.
3637 * cp-tree.h (build_converted_constant_bool_expr): Declare.
3638 * decl.c (build_explicit_specifier): Call
3639 build_converted_constant_bool_expr.
3641 2019-03-28 Jakub Jelinek <jakub@redhat.com>
3644 * constexpr.c (struct check_for_return_continue_data): New type.
3645 (check_for_return_continue): New function.
3646 (potential_constant_expression_1) <case SWITCH_STMT>: Walk
3647 SWITCH_STMT_BODY to find RETURN_EXPRs or CONTINUE_STMTs not nested
3648 in loop bodies and set *jump_target to that if found.
3650 2019-03-27 Jason Merrill <jason@redhat.com>
3652 PR c++/89831 - error with qualified-id in const member function.
3653 * semantics.c (finish_non_static_data_member): Use object cv-quals
3654 in scoped case, too.
3656 PR c++/89421 - ICE with lambda in template parameter list.
3657 * parser.c (cp_parser_lambda_expression): Also reject a lambda in a
3658 template parameter list before C++20.
3659 * pt.c (type_dependent_expression_p): True for LAMBDA_EXPR.
3660 * semantics.c (begin_class_definition): Restore error about defining
3661 non-lambda class in template parm list.
3663 2019-03-26 Jason Merrill <jason@redhat.com>
3665 PR c++/86932 - missed SFINAE with empty pack.
3666 * pt.c (coerce_template_parms): Don't add an empty pack if
3668 (fn_type_unification): Pass tf_partial to coerce_template_parms.
3670 PR c++/86429 - constexpr variable in lambda.
3673 * constexpr.c (cxx_eval_constant_expression): In a lambda function,
3674 try evaluating the captured variable directly.
3676 2019-03-26 Jakub Jelinek <jakub@redhat.com>
3679 * semantics.c (finish_omp_atomic): Add warning_sentinel for
3680 -Wunused-value around finish_expr_stmt call.
3682 2019-03-25 Paolo Carlini <paolo.carlini@oracle.com>
3686 * parser.c (cp_parser_binary_expression): Don't call cp_fully_fold
3687 to undo the disabling of warnings.
3689 2019-03-25 Jason Merrill <jason@redhat.com>
3691 PR c++/87748 - substitution failure error with decltype.
3692 * pt.c (most_specialized_partial_spec): Clear
3693 processing_template_decl.
3695 2019-03-25 Marek Polacek <polacek@redhat.com>
3697 PR c++/89214 - ICE when initializing aggregates with bases.
3698 * typeck2.c (digest_init_r): Warn about object slicing instead of
3701 PR c++/89705 - ICE with reference binding with conversion function.
3702 * call.c (reference_binding): If the result of the conversion function
3703 is a prvalue of non-class type, use the cv-unqualified type.
3705 2019-03-25 Nathan Sidwell <nathan@acm.org>
3707 * lambda.c (maybe_add_lambda_conv_op): Don't add to comdat group.
3709 2019-03-22 Jakub Jelinek <jakub@redhat.com>
3712 * cp-tree.h (get_tls_wrapper_fn): Remove declaration.
3713 (maybe_get_tls_wrapper_call): Declare.
3714 * decl2.c (get_tls_wrapper_fn): Make static.
3715 (maybe_get_tls_wrapper_call): New function.
3716 * typeck.c (build_class_member_access_expr): Handle accesses to TLS
3718 * semantics.c (finish_qualified_id_expr): Likewise.
3719 (finish_id_expression_1): Use maybe_get_tls_wrapper_call.
3720 * pt.c (tsubst_copy_and_build): Likewise.
3723 * constexpr.c (struct constexpr_ctx): Add constexpr_ops_count member.
3724 (cxx_eval_constant_expression): When not skipping, not constant class
3725 or location wrapper, increment *ctx->constexpr_ops_count and if it is
3726 above constexpr_loop_nest_limit, diagnose failure.
3727 (cxx_eval_outermost_constant_expr): Add constexpr_ops_count and
3728 initialize ctx.constexpr_ops_count to its address.
3729 (is_sub_constant_expr): Likewise.
3731 2019-03-21 Jakub Jelinek <jakub@redhat.com>
3734 * call.c (filed_in_pset): Change pset from hash_set<tree> * to
3735 hash_set<tree, true> &, adjust uses accordingly.
3736 (build_aggr_conv): Change pset from hash_set<tree> *
3737 to hash_set<tree, true>. Replace goto fail; with return NULL;,
3741 * parser.c (cp_parser_lambda_introducer): Add ids and first_capture_id
3742 variables, check for duplicates in this function.
3743 * lambda.c (add_capture): Don't check for duplicates nor use
3745 (register_capture_members): Don't clear IDENTIFIER_MARKED here.
3747 2019-03-21 Paolo Carlini <paolo.carlini@oracle.com>
3750 * method.c (after_nsdmi_defaulted_late_checks): Avoid passing
3751 error_mark_node to comp_except_specs.
3753 2019-03-20 Jason Merrill <jason@redhat.com>
3755 PR c++/87480 - decltype of member access in default template arg
3756 * pt.c (type_unification_real): Accept a dependent result in
3759 2019-03-19 Martin Sebor <msebor@redhat.com>
3761 PR tree-optimization/89688
3762 * typeck2.c (store_init_value): Call braced_lists_to_string for more
3763 kinds of initializers.
3765 2019-03-18 Jason Merrill <jason@redhat.com>
3767 PR c++/89630 - ICE with dependent using-decl as template arg.
3768 * tree.c (cp_tree_equal): Always return false for USING_DECL.
3770 PR c++/89761 - ICE with sizeof... in pack expansion.
3771 * pt.c (argument_pack_element_is_expansion_p): Handle
3772 ARGUMENT_PACK_SELECT.
3774 PR c++/89640 - GNU attributes on lambda.
3775 * parser.c (cp_parser_lambda_declarator_opt): Allow GNU attributes.
3777 PR c++/89682 - wrong access error in default argument.
3778 * pt.c (tsubst_default_argument): Don't defer access checks.
3780 2019-03-18 Paolo Carlini <paolo.carlini@oracle.com>
3783 * semantics.c (finish_non_static_data_member): Check return value
3784 of context_for_name_lookup and immediately return error_mark_node
3787 2019-03-17 Jason Merrill <jason@redhat.com>
3789 PR c++/89571 - ICE with ill-formed noexcept on constructor.
3790 * pt.c (maybe_instantiate_noexcept): Only return false if defaulted.
3791 (regenerate_decl_from_template): Use it for noexcept-specs.
3793 2019-03-14 Jason Merrill <jason@redhat.com>
3795 * parser.c (cp_parser_decl_specifier_seq): Support C++20
3796 concept-definition syntax without 'bool'.
3798 2019-03-14 Jakub Jelinek <jakub@redhat.com>
3801 * semantics.c (finish_qualified_id_expr): Reject variable templates.
3804 * constexpr.c (struct constexpr_ctx): Change save_exprs type from
3805 hash_set<tree> to vec<tree>.
3806 (cxx_eval_call_expression): Adjust for save_exprs being a vec instead
3808 (cxx_eval_loop_expr): Likewise. Truncate the vector after each
3809 removal of SAVE_EXPRs from values.
3810 (cxx_eval_constant_expression) <case SAVE_EXPR>: Call safe_push
3811 method on save_exprs instead of add.
3813 2019-03-13 Jason Merrill <jason@redhat.com>
3815 PR c++/86521 - C++17 copy elision in initialization by constructor.
3816 * call.c (joust_maybe_elide_copy): New.
3819 2019-03-13 Marek Polacek <polacek@redhat.com>
3821 PR c++/88979 - further P0634 fix for constructors.
3822 * parser.c (cp_parser_decl_specifier_seq): Pass flags to
3823 cp_parser_constructor_declarator_p.
3824 (cp_parser_direct_declarator): Allow missing typename for constructor
3826 (cp_parser_constructor_declarator_p): Add FLAGS parameter. Pass it to
3827 cp_parser_type_specifier.
3829 PR c++/89686 - mixing init-capture and simple-capture in lambda.
3830 * parser.c (cp_parser_lambda_introducer): Give error when combining
3831 init-capture and simple-capture.
3833 PR c++/89660 - bogus error with -Wredundant-move.
3834 * typeck.c (maybe_warn_pessimizing_move): Only accept (T &) &arg
3835 as the std::move's argument. Don't call convert_for_initialization
3836 when warn_redundant_move isn't on.
3838 2019-03-11 Jason Merrill <jason@redhat.com>
3840 PR c++/86521 - wrong overload resolution with ref-qualifiers.
3841 * call.c (build_user_type_conversion_1): Don't use a conversion to a
3842 reference of the wrong rvalueness for direct binding.
3844 2019-03-11 Martin Liska <mliska@suse.cz>
3846 * cvt.c (build_expr_type_conversion): Wrap apostrophes
3847 in gcc internal format with %'.
3848 * decl.c (check_no_redeclaration_friend_default_args): Likewise.
3849 (grokfndecl): Likewise.
3850 * name-lookup.c (do_pushtag): Likewise.
3851 * pt.c (unify_parameter_deduction_failure): Likewise.
3852 (unify_template_deduction_failure): Likewise.
3854 2019-03-11 Martin Liska <mliska@suse.cz>
3856 * call.c (convert_arg_to_ellipsis): Wrap an option name
3857 in a string format message and fix GNU coding style.
3858 (build_over_call): Likewise.
3859 * class.c (check_field_decl): Likewise.
3860 (layout_nonempty_base_or_field): Likewise.
3861 * constexpr.c (cxx_eval_loop_expr): Likewise.
3862 * cvt.c (type_promotes_to): Likewise.
3863 * decl.c (cxx_init_decl_processing): Likewise.
3864 (mark_inline_variable): Likewise.
3865 (grokdeclarator): Likewise.
3866 * decl2.c (record_mangling): Likewise.
3867 * error.c (maybe_warn_cpp0x): Likewise.
3868 * except.c (doing_eh): Likewise.
3869 * mangle.c (maybe_check_abi_tags): Likewise.
3870 * parser.c (cp_parser_diagnose_invalid_type_name): Likewise.
3871 (cp_parser_userdef_numeric_literal): Likewise.
3872 (cp_parser_primary_expression): Likewise.
3873 (cp_parser_unqualified_id): Likewise.
3874 (cp_parser_pseudo_destructor_name): Likewise.
3875 (cp_parser_builtin_offsetof): Likewise.
3876 (cp_parser_lambda_expression): Likewise.
3877 (cp_parser_lambda_introducer): Likewise.
3878 (cp_parser_lambda_declarator_opt): Likewise.
3879 (cp_parser_selection_statement): Likewise.
3880 (cp_parser_init_statement): Likewise.
3881 (cp_parser_decomposition_declaration): Likewise.
3882 (cp_parser_function_specifier_opt): Likewise.
3883 (cp_parser_static_assert): Likewise.
3884 (cp_parser_simple_type_specifier): Likewise.
3885 (cp_parser_namespace_definition): Likewise.
3886 (cp_parser_using_declaration): Likewise.
3887 (cp_parser_ctor_initializer_opt_and_function_body): Likewise.
3888 (cp_parser_initializer_list): Likewise.
3889 (cp_parser_type_parameter_key): Likewise.
3890 (cp_parser_member_declaration): Likewise.
3891 (cp_parser_try_block): Likewise.
3892 (cp_parser_std_attribute_spec): Likewise.
3893 (cp_parser_requires_clause_opt): Likewise.
3894 * pt.c (check_template_variable): Likewise.
3895 (check_default_tmpl_args): Likewise.
3896 (push_tinst_level_loc): Likewise.
3897 (instantiate_pending_templates): Likewise.
3898 (invalid_nontype_parm_type_p): Likewise.
3899 * repo.c (get_base_filename): Likewise.
3900 * rtti.c (typeid_ok_p): Likewise.
3901 (build_dynamic_cast_1): Likewise.
3902 * tree.c (maybe_warn_parm_abi): Likewise.
3904 2019-03-08 Jakub Jelinek <jakub@redhat.com>
3907 * parser.c (cp_parser_template_declaration_after_parameters): Avoid
3908 one space before " at the end of line and another after " on another
3909 line in a string literal.
3911 PR tree-optimization/89550
3912 * semantics.c (maybe_convert_cond): Only set TREE_NO_WARNING if
3913 warning_at returned true.
3914 * decl2.c (c_parse_final_cleanups): Likewise.
3915 * typeck.c (convert_for_assignment): Likewise.
3916 * decl.c (finish_function): Likewise.
3919 * parser.c (cp_parser_asm_definition): Just warn instead of error
3920 on volatile qualifier outside of function body.
3923 * constexpr.c (potential_constant_expression_1): Reject
3924 REINTERPRET_CAST_P NOP_EXPRs.
3927 * call.c (joust): Call print_z_candidate only if pedwarn returned
3930 2019-03-07 Jason Merrill <jason@redhat.com>
3932 PR c++/88123 - lambda and using-directive.
3933 * name-lookup.c (op_unqualified_lookup)
3934 (maybe_save_operator_binding, discard_operator_bindings)
3935 (push_operator_bindings): New.
3936 * typeck.c (build_x_binary_op, build_x_unary_op): Call
3937 maybe_save_operator_binding.
3938 * decl.c (start_preparsed_function): Call push_operator_bindings.
3939 * tree.c (cp_free_lang_data): Call discard_operator_bindings.
3941 PR c++/88820 - ICE with CTAD and member template used in DMI.
3942 * pt.c (do_class_deduction): Handle parm used as its own arg.
3944 2019-03-07 Jakub Jelinek <jakub@redhat.com>
3947 * parser.c (cp_parser_asm_definition): Parse asm qualifiers even
3948 at toplevel, but diagnose them.
3950 2019-03-06 Jason Merrill <jason@redhat.com>
3952 PR c++/89381 - implicit copy and using-declaration.
3953 * class.c (classtype_has_move_assign_or_move_ctor_p): Don't consider
3954 op= brought in by a using-declaration.
3956 2019-03-06 Jakub Jelinek <jakub@redhat.com>
3959 * init.c (build_value_init_noctor): Ignore flexible array members.
3961 2019-03-06 Jason Merrill <jason@redhat.com>
3963 PR c++/89576 - if constexpr of lambda capture.
3964 * semantics.c (maybe_convert_cond): Do convert a non-dependent
3965 condition in a template.
3966 * typeck.c (condition_conversion): Handle being called in a
3969 2019-03-06 Marek Polacek <polacek@redhat.com>
3971 PR c++/87378 - bogus -Wredundant-move warning.
3972 * typeck.c (maybe_warn_pessimizing_move): See if the maybe-rvalue
3973 overload resolution would actually succeed.
3975 2019-03-05 Jason Merrill <jason@redhat.com>
3977 * class.c (is_really_empty_class): Add ignore_vptr parm.
3978 (trivial_default_constructor_is_constexpr): Pass it.
3979 * call.c (build_over_call): Pass it.
3980 * constexpr.c (cxx_eval_constant_expression): Pass it instead of
3981 checking TYPE_POLYMORPHIC_P.
3982 (cxx_eval_component_reference, potential_constant_expression_1):
3984 * cp-gimplify.c (simple_empty_class_p): Pass it.
3985 * init.c (expand_aggr_init_1): Pass it.
3987 2019-03-04 Paolo Carlini <paolo.carlini@oracle.com>
3990 * parser.c (cp_parser_class_head): Reject TYPE_BEING_DEFINED too.
3992 2019-03-04 Jakub Jelinek <jakub@redhat.com>
3995 * call.c (field_in_pset): New function.
3996 (build_aggr_conv): Handle CONSTRUCTOR_IS_DESIGNATED_INIT correctly.
3998 2019-03-02 Jakub Jelinek <jakub@redhat.com>
4001 * cp-tree.h (CONSTRUCTOR_IS_DESIGNATED_INIT): Define.
4002 * parser.c (cp_parser_braced_list): Adjust cp_parser_initializer_list
4003 caller, set CONSTRUCTOR_IS_DESIGNATED_INIT.
4004 (cp_parser_initializer_list): Add designated parameter, set *designated
4005 to a bool whether any designators were parsed.
4006 * decl.c (reshape_init): Copy over CONSTRUCTOR_IS_DESIGNATED_INIT if
4008 * pt.c (tsubst_copy_and_build): Likewise.
4009 * call.c (implicit_conversion): If CONSTRUCTOR_IS_DESIGNATED_INIT,
4010 don't call build_list_conv, nor build_complex_conv, nor attempt to
4011 convert a single element initializer to scalar.
4013 2019-03-01 Marek Polacek <polacek@redhat.com>
4015 PR c++/89537 - missing location for error with non-static member fn.
4016 * call.c (resolve_args): Use EXPR_LOCATION.
4017 * typeck.c (build_class_member_access_expr): Use input_location.
4019 PR c++/89532 - ICE with incomplete type in decltype.
4020 * semantics.c (finish_compound_literal): Return error_mark_node
4021 if digest_init_flags returns error_mark_node.
4023 2019-03-01 Jakub Jelinek <jakub@redhat.com>
4025 Implement P1002R1, Try-catch blocks in constexpr functions
4027 * parser.c (cp_parser_ctor_initializer_opt_and_function_body):
4028 Diagnose constexpr ctor or function with function-try-block with
4029 pedwarn for c++17 and earlier. Formatting fix.
4030 (cp_parser_try_block): Use pedwarn instead of error and only for
4031 c++17 and earlier when try block appears in constexpr function.
4032 * constexpr.c (build_constexpr_constructor_member_initializers):
4033 Handle TRY_BLOCK here instead of erroring on it.
4035 2019-02-28 Jason Merrill <jason@redhat.com>
4037 PR c++/88183 - ICE with .* fold-expression.
4038 * pt.c (fold_expression) [DOTSTAR_EXPR]: Remove special handling.
4040 PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
4041 * class.c, lambda.c, pt.c: Revert earlier change.
4042 * lambda.c (add_capture): Don't special-case capture of dependent
4045 * name-lookup.c (print_binding_level): Print this_entity.
4047 2019-02-27 Marek Polacek <polacek@redhat.com>
4049 PR c++/88857 - ICE with value-initialization of argument in template.
4050 * call.c (convert_like_real): Don't call build_value_init in template.
4052 2019-02-27 Jason Merrill <jason@redhat.com>
4054 PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
4055 * semantics.c (process_outer_var_ref): Do capture dependent vars.
4056 * class.c (finish_struct): Only add TAG_DEFN if T is in
4057 current_function_decl.
4058 * lambda.c (vla_capture_type): Force the capture type out into the
4059 lambda's enclosing function.
4060 (add_capture): Pass in the lambda.
4061 * pt.c (tsubst_lambda_expr): complete_type a VLA capture type.
4063 2019-02-27 Marek Polacek <polacek@redhat.com>
4065 PR c++/89511 - ICE with using-declaration and unscoped enumerator.
4066 * parser.c (cp_parser_using_declaration): For an unscoped enum
4067 only use its context if it's not a function declaration.
4069 2019-02-27 Paolo Carlini <paolo.carlini@oracle.com>
4072 * method.c (process_subob_fn): When maybe_instantiate_noexcept
4073 returns false don't call merge_exception_specifiers.
4075 2019-02-27 Paolo Carlini <paolo.carlini@oracle.com>
4078 * parser.c (cp_parser_noexcept_specification_opt): Return NULL_TREE
4079 for a non-constant parsed expression.
4081 2019-02-26 Jakub Jelinek <jakub@redhat.com>
4084 * constexpr.c (cxx_eval_store_expression): When changing active union
4085 member, set no_zero_init.
4087 2019-02-23 Marek Polacek <polacek@redhat.com>
4089 PR c++/88294 - ICE with non-constant noexcept-specifier.
4090 * pt.c (maybe_instantiate_noexcept): Set up the list of local
4091 specializations. Set current_class_{ptr,ref}.
4093 2019-02-22 David Malcolm <dmalcolm@redhat.com>
4096 * parser.c (cp_parser_unqualified_id): Capture and use locations
4099 2019-02-22 Marek Polacek <polacek@redhat.com>
4101 PR c++/89420 - ICE with CAST_EXPR in explicit-specifier.
4102 * decl.c (build_explicit_specifier): Don't check
4103 processing_template_decl. Call instantiation_dependent_expression_p
4104 instead of value_dependent_expression_p. Call
4105 instantiate_non_dependent_expr_sfinae before
4106 build_converted_constant_expr instead of calling
4107 instantiate_non_dependent_expr after it. Add
4108 processing_template_decl_sentinel.
4110 2019-02-22 Thomas Schwinge <thomas@codesourcery.com>
4112 * parser.c (cp_parser_oacc_simple_clause): Remove parser formal
4113 parameter, move loc formal parameter to the front. Adjust all
4115 (cp_parser_oacc_shape_clause): Add loc formal parameter. Adjust
4118 2019-02-21 Jason Merrill <jason@redhat.com>
4120 PR c++/87685 - generic lambda 'this' capture error.
4121 * lambda.c (lambda_expr_this_capture): Change add_capture_p to int.
4122 (maybe_generic_this_capture): Pass -1.
4124 PR c++/88394 - ICE with VLA init-capture.
4125 * lambda.c (is_normal_capture_proxy): Check DECL_CAPTURED_VARIABLE.
4127 PR c++/88869 - C++17 ICE with CTAD and explicit specialization.
4128 * pt.c (do_class_deduction): Don't include explicit specialization
4131 PR c++/89422 - ICE with -g and lambda in default arg in template.
4132 * pt.c (tsubst_function_decl): SET_DECL_FRIEND_CONTEXT sooner.
4134 2019-02-21 Jason Merrill <jason@redhat.com>
4136 PR c++/88419 - C++17 ICE with class template arg deduction.
4137 * pt.c (make_template_placeholder): Set TYPE_CANONICAL after
4138 CLASS_PLACEHOLDER_TEMPLATE.
4140 2019-02-21 Jakub Jelinek <jakub@redhat.com>
4143 * constexpr.c (struct constexpr_fundef): Add parms and result members.
4144 (retrieve_constexpr_fundef): Adjust for the above change.
4145 (register_constexpr_fundef): Save constexpr body with copy_fn,
4146 temporarily set DECL_CONTEXT on DECL_RESULT before that.
4147 (get_fundef_copy): Change FUN argument to FUNDEF with
4148 constexpr_fundef * type, grab body and parms/result out of
4149 constexpr_fundef struct and temporarily change it for copy_fn calls
4151 (cxx_eval_builtin_function_call): For __builtin_FUNCTION temporarily
4152 adjust current_function_decl from ctx->call context. Test
4153 !potential_constant_expression instead of !is_constant_expression.
4154 (cxx_bind_parameters_in_call): Grab parameters from new_call. Undo
4155 convert_for_arg_passing changes for TREE_ADDRESSABLE type passing.
4156 (cxx_eval_call_expression): Adjust get_fundef_copy caller.
4157 (cxx_eval_conditional_expression): For IF_STMT, allow then or else
4158 operands to be NULL.
4159 (label_matches): Handle BREAK_STMT and CONTINUE_STMT.
4160 (cxx_eval_loop_expr): Add support for FOR_STMT, WHILE_STMT and DO_STMT.
4161 (cxx_eval_switch_expr): Add support for SWITCH_STMT.
4162 (cxx_eval_constant_expression): Handle IF_STMT, FOR_STMT, WHILE_STMT,
4163 DO_STMT, CONTINUE_STMT, SWITCH_STMT, BREAK_STMT and CONTINUE_STMT.
4164 For SIZEOF_EXPR, recurse on the result of fold_sizeof_expr. Ignore
4165 DECL_EXPR with USING_DECL operand.
4166 * lambda.c (maybe_add_lambda_conv_op): Build thisarg using
4167 build_int_cst to make it a valid constant expression.
4169 2019-02-20 Jason Merrill <jason@redhat.com>
4171 PR c++/88690 - C++17 ICE with empty base in aggregate.
4172 * typeck2.c (process_init_constructor_record): Skip trivial
4173 initialization of an empty base.
4175 2019-02-21 Richard Biener <rguenther@suse.de>
4178 * vtable-class-hierarchy.c (vtv_generate_init_routine): Do not
4179 make symtab process new functions here.
4181 2019-02-20 Jason Merrill <jason@redhat.com>
4183 PR c++/87921 - wrong error with inline static data member.
4184 * decl2.c (finish_static_data_member_decl): Don't set DECL_IN_AGGR_P
4185 for a non-template inline variable. Do nothing for an
4186 already-instantiated variable.
4187 (c_parse_final_cleanups): Check DECL_IN_AGGR_P without
4189 * decl.c (check_initializer): Likewise.
4190 (make_rtl_for_nonlocal_decl): Likewise.
4191 * pt.c (instantiate_decl): Likewise.
4192 * typeck2.c (store_init_value): Likewise.
4194 2019-02-20 Jakub Jelinek <jakub@redhat.com>
4197 * decl2.c (c_parse_final_cleanups): Move TREE_ASM_WRITTEN setting
4198 for flag_syntax_only from here...
4199 * semantics.c (expand_or_defer_fn_1): ... here.
4202 * decl.c (maybe_commonize_var): When clearing TREE_PUBLIC and
4203 DECL_COMMON, set DECL_INTERFACE_KNOWN.
4206 * constexpr.c (cxx_eval_store_expression): Diagnose changing of active
4207 union member for -std=c++17 and earlier.
4209 2019-02-19 Jason Merrill <jason@redhat.com>
4211 PR c++/87513 - 'sorry' mangling PMF template-id.
4212 * mangle.c (write_expression): Handle SCOPE_REF to BASELINK.
4214 2019-02-19 Jason Merrill <jason@redhat.com>
4216 PR c++/88380 - wrong-code with flexible array and NSDMI.
4217 * typeck2.c (process_init_constructor_record): Skip flexarrays.
4219 2019-02-20 will wray <wjwray@gmail.com>
4221 PR c++/88572 - wrong handling of braces on scalar init.
4222 * decl.c (reshape_init_r): Allow braces around scalar initializer
4223 within aggregate init. Reject double braced-init of scalar
4226 2019-02-20 Paolo Carlini <paolo.carlini@oracle.com>
4229 * pt.c (tsubst_init): Diagnose an initializer expanding to an
4230 empty list of expressions; tweak wrt dependent types.
4231 (regenerate_decl_from_template): For VAR_DECLs call tsubst_init
4232 instead of tsubst_expr.
4234 2019-02-19 Jason Merrill <jason@redhat.com>
4236 PR c++/88368 - wrong 'use of deleted function'
4237 * method.c (walk_field_subobs): Remember errors from get_nsdmi.
4238 (get_defaulted_eh_spec): Call push_tinst_level.
4239 * pt.c (maybe_instantiate_noexcept): Keep error_mark_node.
4240 * typeck2.c (merge_exception_specifiers): Handle error_mark_node.
4242 2019-02-19 Chung-Lin Tang <cltang@codesourcery.com>
4245 * parser.c (cp_parser_oacc_clause_wait): Add representation of wait
4246 clause without argument as 'wait (GOMP_ASYNC_NOVAL)', adjust comments.
4248 2019-02-19 Jakub Jelinek <jakub@redhat.com>
4251 * lambda.c (maybe_generic_this_capture): Don't check
4252 DECL_NONSTATIC_MEMBER_FUNCTION_P on USING_DECLs.
4255 * typeck.c (build_reinterpret_cast_1): Don't handle void to
4256 && conversion go through build_target_expr_with_type.
4259 * error.c (qualified_name_lookup_error): Only call
4260 suggest_alternative_in_scoped_enum if name is IDENTIFIER_NODE.
4262 2019-02-19 Tom Honermann <tom@honermann.net>
4264 * name-lookup.c (get_std_name_hint): Added u8string as a name hint.
4266 2019-02-18 Jason Merrill <jason@redhat.com>
4268 PR c++/89336 - multiple stores in constexpr stmt.
4269 * constexpr.c (cxx_eval_store_expression): Preevaluate scalar or
4272 * pt.c (check_explicit_specialization): If the declarator is a
4273 template-id, only check whether the arguments are dependent.
4275 Improve duplicate [[likely]] diagnostic.
4276 * parser.c (cp_parser_statement): Make attrs_loc a range. Pass it
4277 to process_stmt_hotness_attribute.
4278 * cp-gimplify.c (process_stmt_hotness_attribute): Take attrs_loc.
4279 (genericize_if_stmt): Use likely/unlikely instead of predictor_name.
4281 2019-02-17 Marek Polacek <polacek@redhat.com>
4283 PR c++/89217 - ICE with list-initialization in range-based for loop.
4284 * constexpr.c (unshare_constructor): No longer static.
4285 * cp-tree.h (unshare_constructor): Declare.
4286 * semantics.c (finish_compound_literal): When dealing with a
4287 non-dependent expression in a template, return the original
4288 expression. Pass LOOKUP_NO_NARROWING to digest_init_flags.
4290 2019-02-13 Marek Polacek <polacek@redhat.com>
4292 PR c++/89297 - ICE with OVERLOAD in template.
4293 * semantics.c (finish_compound_literal): Call
4294 instantiate_non_dependent_expr_sfinae.
4296 2019-02-13 Alexandre Oliva <aoliva@redhat.com>
4299 * cp-tree.h (USING_DECL_SCOPE): Use result rather than type.
4300 * name-lookup.c (strip_using_decl): Use USING_DECL_SCOPE.
4301 * search.c (protected_accessible_p): Follow USING_DECL_DECLS.
4302 (shared_member_p): Likewise.
4303 (lookup_member): Likewise.
4304 * decl.c (grok_special_member_properties): Skip USING_DECLs.
4305 * semantics.c (finish_omp_declare_simd_methods): Likewise.
4306 (finish_qualified_id_expr): Do not call shared_member_p with
4310 * pt.c (tsubst_lambda_expr): Avoid duplicate tsubsting.
4311 Move cp_evaluated resetting before signature tsubsting.
4312 (gen_elem_of_pack_expansion_instantiation): Separate local
4313 specializations per index.
4315 2019-02-13 David Malcolm <dmalcolm@redhat.com>
4318 * class.c (add_method): Drop destructor assertion.
4320 2019-02-13 Paolo Carlini <paolo.carlini@oracle.com>
4323 * decl.c (make_typename_type): Allow for TYPE_PACK_EXPANSION as
4324 context (the first argument).
4325 * pt.c (tsubst, case TYPENAME_TYPE): Handle TYPE_PACK_EXPANSION
4328 2019-02-12 Jason Merrill <jason@redhat.com>
4330 PR c++/89144 - link error with constexpr initializer_list.
4331 * call.c (convert_like_real) [ck_list]: Don't allocate a temporary
4332 array for an empty list.
4333 * typeck2.c (store_init_value): Don't use cxx_constant_init in a
4336 2019-02-11 Jason Merrill <jason@redhat.com>
4338 PR c++/89241 - ICE with __func__ in lambda in template.
4339 * pt.c (enclosing_instantiation_of): Also check
4340 instantiated_lambda_fn_p for the template context.
4342 2019-02-11 Marek Polacek <polacek@redhat.com>
4344 PR c++/89212 - ICE converting nullptr to pointer-to-member-function.
4345 * pt.c (tsubst_copy_and_build) <case CONSTRUCTOR>: Return early for
4346 null member pointer value.
4348 2019-02-11 Jakub Jelinek <jakub@redhat.com>
4351 * pt.c (convert_nontype_argument): Pass true as manifestly_const_eval
4352 to maybe_constant_value calls.
4354 2019-02-11 Marek Polacek <polacek@redhat.com>
4356 * typeck2.c (digest_init_r): Remove commented code.
4358 2019-02-11 Martin Sebor <msebor@redhat.com>
4361 * decl.c (compute_array_index_type_loc): Preserve signed sizes
4362 for diagnostics. Call valid_array_size_p instead of error.
4363 * init.c (build_new_1): Compute size for diagnostic. Call
4364 invalid_array_size_error
4365 (build_new): Call valid_array_size_p instead of error.
4367 2019-02-07 Alexandre Oliva <aoliva@redhat.com>
4370 * call.c (compare_ics): Deal with ck_aggr in either cs.
4372 2019-02-06 David Malcolm <dmalcolm@redhat.com>
4375 * call.c (get_location_for_expr_unwinding_for_system_header): New
4377 (conversion_null_warnings): Use it when getting locations for
4378 EXPR, effectively adding a call to
4379 get_location_for_expr_unwinding_for_system_header for
4380 -Wconversion-null and making use of EXPR_LOCATION for
4381 -Wzero-as-null-pointer-constant.
4383 2019-02-05 Jakub Jelinek <jakub@redhat.com>
4386 * optimize.c (maybe_thunk_body): Clear TREE_ADDRESSABLE on
4387 PARM_DECLs of the thunk.
4388 * lambda.c (maybe_add_lambda_conv_op): Likewise.
4390 2019-02-05 Marek Polacek <polacek@redhat.com>
4392 PR c++/89158 - by-value capture of constexpr variable broken.
4393 * call.c (convert_like_real) <case ck_user>: Call mark_exp_read
4394 instead of mark_rvalue_use.
4396 2019-02-05 Alexandre Oliva <aoliva@redhat.com>
4399 * pt.c (instantiates_primary_template_p): New.
4400 (type_dependent_expression_p): Use it.
4402 2019-02-01 Jason Merrill <jason@redhat.com>
4404 PR c++/88761 - ICE with reference capture of constant.
4405 * lambda.c (mark_const_cap_r): Do walk subtrees of DECL_EXPR for
4408 2019-02-01 Marek Polacek <polacek@redhat.com>
4410 PR c++/88325 - ICE with invalid out-of-line template member definition.
4411 * parser.c (cp_parser_class_name): Don't call make_typename_type
4414 2019-02-01 Jakub Jelinek <jakub@redhat.com>
4417 * parser.c (cp_parser_gnu_attributes_opt): Set ok to false
4418 if require_open failed.
4420 2019-01-31 Marek Polacek <polacek@redhat.com>
4422 PR c++/89083, c++/80864 - ICE with list initialization in template.
4423 * constexpr.c (adjust_temp_type): Use copy_node and change the type
4424 instead of using build_constructor.
4425 * decl.c (reshape_init_r): Don't reshape a digested initializer.
4426 Return the initializer for COMPOUND_LITERAL_P.
4428 PR c++/88983 - ICE with switch in constexpr function.
4429 * constexpr.c (cxx_eval_switch_expr): Use SWITCH_COND and SWITCH_BODY.
4430 (cxx_eval_constant_expression) <case COND_EXPR>: Don't look for the
4431 label in the else branch if we found it in the then branch.
4433 2019-01-30 Jason Merrill <jason@redhat.com>
4435 PR c++/88752 - ICE with lambda and constexpr if.
4436 * cp-tree.h (LAMBDA_EXPR_INSTANTIATED): New.
4437 * pt.c (tsubst_lambda_expr): Set it.
4438 (instantiated_lambda_fn_p): Check it.
4439 (enclosing_instantiation_of): Use it.
4441 2019-01-31 Jakub Jelinek <jakub@redhat.com>
4444 * cxx-pretty-print.c (pp_cxx_enumeration_constant): Print always as
4445 a C cast in pp_c_flag_gnu_v3 mode.
4447 2019-01-30 Jakub Jelinek <jakub@redhat.com>
4450 * lambda.c (is_capture_proxy): Don't return true for
4451 DECL_OMP_PRIVATIZED_MEMBER artificial vars.
4453 2019-01-30 Marek Polacek <polacek@redhat.com>
4455 PR c++/89119 - ICE with value-initialization in template.
4456 * pt.c (tsubst_copy_and_build): Handle RANGE_EXPR.
4458 2019-01-29 Jason Merrill <jason@redhat.com>
4460 PR c++/86943 - wrong code converting lambda to function pointer.
4461 * lambda.c (maybe_add_lambda_conv_op): Use a template-id in the
4462 call. Only forward parms for decltype.
4463 * pt.c (tsubst_copy_and_build) [CALL_EXPR]: Handle CALL_FROM_THUNK_P
4465 * typeck.c (check_return_expr): Don't mess with a thunk call.
4467 2019-01-28 Jason Merrill <jason@redhat.com>
4469 PR c++/89089 - ICE with [[no_unique_address]].
4470 PR c++/88865 - wrong layout with [[no_unique_address]].
4471 * class.c (check_field_decls): A potentially-overlapping field makes
4472 the class non-layout-POD, but not non-empty.
4473 (end_of_class): Always consider empty data members.
4474 (layout_class_type): Set DECL_SIZE for empty fields.
4476 2019-01-28 Marek Polacek <polacek@redhat.com>
4478 PR c++/88358 - name wrongly treated as type.
4479 * parser.c (cp_parser_direct_declarator): Don't assume a qualified-id
4480 in parameter-list is a type if the function's declarator-id is not
4483 2019-01-27 Marek Polacek <polacek@redhat.com>
4485 PR c++/88815 - narrowing conversion lost in decltype.
4486 PR c++/78244 - narrowing conversion in template not detected.
4487 * cp-tree.h (CONSTRUCTOR_IS_DEPENDENT): New.
4488 * pt.c (instantiation_dependent_r): Consider a CONSTRUCTOR with
4489 CONSTRUCTOR_IS_DEPENDENT instantiation-dependent.
4490 * semantics.c (finish_compound_literal): When the compound literal
4491 isn't instantiation-dependent and the type isn't type-dependent,
4492 fall back to the normal processing. Set CONSTRUCTOR_IS_DEPENDENT.
4494 PR c++/89024 - ICE with incomplete enum type.
4495 * call.c (standard_conversion): When converting an
4496 ARITHMETIC_TYPE_P to an incomplete type, return NULL.
4498 2019-01-25 Paolo Carlini <paolo.carlini@oracle.com>
4501 * call.c (build_op_delete_call): Implement 7.6.2.5/(10.1).
4502 * decl2.c (coerce_delete_type): Use build_pointer_type instead
4505 2019-01-24 Jason Merrill <jason@redhat.com>
4507 PR c++/89001 - mangling of reference temporaries
4508 * cp-tree.h (struct saved_scope): Add ref_temp_count.
4509 (current_ref_temp_count): New macro.
4510 * mangle.c (mangle_ref_init_variable): Use it.
4511 * typeck2.c (store_init_value): Clear it.
4512 * call.c (make_temporary_var_for_ref_to_temp): Copy public and
4515 2019-01-24 Jakub Jelinek <jakub@redhat.com>
4518 * semantics.c (finish_omp_cancel): Diagnose more than one if
4519 on #pragma omp cancel with different modifiers. Use
4520 maybe_convert_cond when not in template or build_x_binary_op
4523 2019-01-23 Marek Polacek <polacek@redhat.com>
4525 PR c++/88757 - qualified name treated wrongly as type.
4526 * parser.c (cp_parser_direct_declarator): Don't treat qualified-ids
4527 in parameter-list as types if name lookup for declarator-id didn't
4528 find one or more function templates.
4530 2019-01-23 Jakub Jelinek <jakub@redhat.com>
4533 * cp-gimplify.c (genericize_cp_loop): Call begin_bc_block only
4534 after genericizing cond and incr expressions.
4537 * cp-gimplify.c (genericize_switch_stmt): Move cond genericization
4538 before the begin_bc_block call.
4540 2019-01-21 Jason Merrill <jason@redhat.com>
4542 PR c++/87893 - constexpr ctor ICE on ARM.
4543 PR c++/88293 - ICE with comma expression.
4544 * constexpr.c (initialized_type): Don't shortcut non-void type.
4545 Handle COMPOUND_EXPR.
4546 (cxx_eval_outermost_constant_expr): Return early for void type.
4548 2019-01-21 Jakub Jelinek <jakub@redhat.com>
4551 * optimize.c (cxx_copy_decl): New function.
4552 (clone_body): Use it instead of copy_decl_no_change.
4555 * typeck.c (cp_build_binary_op): Don't instrument
4556 SANITIZE_POINTER_COMPARE if processing_template_decl.
4557 (pointer_diff): Similarly for SANITIZE_POINTER_SUBTRACT.
4559 2019-01-18 Jason Merrill <jason@redhat.com>
4561 PR c++/88875 - error with explicit list constructor.
4562 * call.c (reference_binding): Don't modify EXPR. Set
4563 need_temporary_p on the ck_user conversion for a temporary.
4564 (convert_like_real): Check it.
4566 2019-01-18 H.J. Lu <hongjiu.lu@intel.com>
4570 * call.c (convert_for_arg_passing): Upate the
4571 warn_for_address_or_pointer_of_packed_member call.
4572 * typeck.c (convert_for_assignment): Likewise.
4574 2019-01-17 Jason Merrill <jason@redhat.com>
4576 PR c++/86205 - ICE with ?: of throw and template-id.
4577 * pt.c (resolve_nondeduced_context_or_error): Split out from...
4578 * typeck.c (decay_conversion): ...here.
4579 * call.c (build_conditional_expr_1): Use it.
4581 PR c++/86740, ICE with constexpr if and nested generic lambdas.
4582 * tree.c (cp_walk_subtrees): Handle LAMBDA_EXPR.
4584 2019-01-17 Paolo Carlini <paolo.carlini@oracle.com>
4586 * decl.c (grokdeclarator): Use typespec_loc in error messages
4587 about 'auto' and trailing return type.
4589 2019-01-17 David Malcolm <dmalcolm@redhat.com>
4592 * class.c (add_method): Don't use DECL_DESTRUCTOR_P on
4595 2019-01-17 Nathan Sidwell <nathan@acm.org>
4598 * semantics.c (process_outer_var_ref): Only skip dependent types
4601 2019-01-17 Alexandre Oliva <aoliva@redhat.com>
4604 * cp-tree.h (saved_scope): Add suppress_location_wrappers.
4605 * name-lookup.c (do_push_to_top_level): Save and reset it.
4606 (do_pop_from_top_level): Restore it.
4609 * pt.c (make_template_placeholder): Use auto_identifier.
4610 (is_auto): Drop CLASS_PLACEHOLDER_TEMPLATE test.
4611 * error.c (dump_type): Handle template placeholders.
4612 * cxx-pretty-print.c (pp_cx_unqualified_id): Likewise.
4615 * cvt.c (convert_to_void): Handle all cdtor calls as if
4618 2019-01-16 Paolo Carlini <paolo.carlini@oracle.com>
4620 * decl.c (grokdeclarator): Use locations[ds_storage_class] in
4621 error messages about ill-formed uses of mutable.
4623 2019-01-16 Marek Polacek <polacek@redhat.com>
4625 PR c++/78244 - narrowing conversion in template not detected.
4626 * call.c (perform_implicit_conversion_flags): Set
4627 IMPLICIT_CONV_EXPR_BRACED_INIT.
4628 * cp-tree.h (IMPLICIT_CONV_EXPR_BRACED_INIT): New.
4629 * pt.c (tsubst_copy_and_build): Use it.
4631 2019-01-15 David Malcolm <dmalcolm@redhat.com>
4634 * pt.c (build_deduction_guide): Bail out if tsubst_arg_types
4637 2019-01-15 Paolo Carlini <paolo.carlini@oracle.com>
4639 * decl.c (start_decl): Improve error location.
4640 * decl2.c (grokfield): Likewise.
4642 2019-01-15 Paolo Carlini <paolo.carlini@oracle.com>
4644 * decl.c (grokdeclarator): Move further up the location_t loc
4645 declaration and use the location when building a TYPE_DECL for
4647 * decl2.c (grokbitfield): Use DECL_SOURCE_LOCATION in the error
4648 about an ill-formed bit-field as typedef.
4650 2019-01-14 Marek Polacek <polacek@redhat.com>
4652 PR c++/88830 - ICE with abstract class.
4653 * decl2.c (maybe_emit_vtables): Check CLASSTYPE_LAZY_DESTRUCTOR.
4656 PR c++/88825 - ICE with bogus function return type deduction.
4657 * typeck.c (can_do_nrvo_p): Check error_mark_node.
4659 2019-01-14 Tom Honermann <tom@honermann.net>
4661 Implement P0482R5, char8_t: A type for UTF-8 characters and strings
4662 * cvt.c (type_promotes_to): Handle char8_t promotion.
4663 * decl.c (grokdeclarator): Handle invalid type specifier
4664 combinations involving char8_t.
4665 * lex.c (init_reswords): Add char8_t as a reserved word.
4666 * mangle.c (write_builtin_type): Add name mangling for char8_t (Du).
4667 * parser.c (cp_keyword_starts_decl_specifier_p)
4668 (cp_parser_simple_type_specifier): Recognize char8_t as a simple
4670 (cp_parser_string_literal): Use char8_array_type_node for the type
4672 (cp_parser_set_decl_spec_type): Tolerate char8_t typedefs in system
4674 * rtti.c (emit_support_tinfos): type_info support for char8_t.
4675 * tree.c (char_type_p): Recognize char8_t as a character type.
4676 * typeck.c (string_conv_p): Handle conversions of u8 string
4677 literals of char8_t type.
4678 (check_literal_operator_args): Handle UDLs with u8 string literals
4680 * typeck2.c (ordinary_char_type_p): New.
4681 (digest_init_r): Disallow initializing a char array with a u8 string
4684 2019-01-14 Martin Liska <mliska@suse.cz>
4686 PR gcov-profile/88263
4687 * decl2.c (get_tls_wrapper_fn): Use DECL_SOURCE_LOCATION
4688 as location of the TLS wrapper.
4690 2019-01-12 Paolo Carlini <paolo.carlini@oracle.com>
4692 * decl.c (cp_finish_decl): Improve error location.
4693 * decl2.c (grokfield): Likewise, improve two locations.
4695 2019-01-11 Marek Polacek <polacek@redhat.com>
4697 PR c++/88692, c++/87882 - -Wredundant-move false positive with *this.
4698 * typeck.c (maybe_warn_pessimizing_move): Return if ARG isn't
4701 2019-01-11 Jason Merrill <jason@redhat.com>
4703 PR c++/88312 - pack expansion of decltype.
4704 * pt.c (instantiation_dependent_r): A template non-type parameter
4705 pack is instantiation-dependent.
4707 2019-01-11 Jason Merrill <jason@redhat.com>
4709 PR c++/88613 - ICE with use of const var in lambda.
4710 * expr.c (mark_use): Fix location wrapper handling.
4711 * cp-gimplify.c (cp_fold_maybe_rvalue): Call mark_rvalue_use.
4713 2019-01-11 Tobias Burnus <burnus@net-b.de>
4716 * decl2.c (maybe_emit_vtables): If needed, generate code for
4717 the destructor of an abstract class.
4718 (mark_used): Update comment for older function-name change.
4720 2019-01-11 Paolo Carlini <paolo.carlini@oracle.com>
4722 * decl.c (start_decl): Improve error location.
4723 (grokdeclarator): Likewise, improve two locations.
4725 2019-01-09 Sandra Loosemore <sandra@codesourcery.com>
4729 * cp-tree.h: Mechanically replace "can not" with "cannot".
4730 * parser.c: Likewise.
4733 2019-01-08 Paolo Carlini <paolo.carlini@oracle.com>
4735 * decl.c (grok_reference_init): Improve error location.
4736 (grokdeclarator): Likewise, improve two locations.
4738 2019-01-08 Marek Polacek <polacek@redhat.com>
4740 PR c++/88538 - braced-init-list in template-argument-list.
4741 * parser.c (cp_parser_template_argument): Handle braced-init-list when
4744 PR c++/88548 - this accepted in static member functions.
4745 * parser.c (cp_debug_parser): Adjust printing of
4746 local_variables_forbidden_p.
4747 (cp_parser_new): Set local_variables_forbidden_p to 0 rather than false.
4748 (cp_parser_primary_expression): When checking
4749 local_variables_forbidden_p, use THIS_FORBIDDEN or
4750 LOCAL_VARS_FORBIDDEN.
4751 (cp_parser_lambda_body): Update the type of
4752 local_variables_forbidden_p. Set it to 0 rather than false.
4753 (cp_parser_condition): Adjust call to cp_parser_declarator.
4754 (cp_parser_explicit_instantiation): Likewise.
4755 (cp_parser_init_declarator): Likewise.
4756 (cp_parser_declarator): New parameter. Use it.
4757 (cp_parser_direct_declarator): New parameter. Use it to set
4758 local_variables_forbidden_p. Adjust call to cp_parser_declarator.
4759 (cp_parser_type_id_1): Adjust call to cp_parser_declarator.
4760 (cp_parser_parameter_declaration): Likewise.
4761 (cp_parser_default_argument): Update the type of
4762 local_variables_forbidden_p. Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
4764 (cp_parser_member_declaration): Tell cp_parser_declarator if we saw
4765 'static' or 'friend'.
4766 (cp_parser_exception_declaration): Adjust call to cp_parser_declarator.
4767 (cp_parser_late_parsing_default_args): Update the type of
4768 local_variables_forbidden_p. Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
4770 (cp_parser_cache_defarg): Adjust call to cp_parser_declarator.
4771 (cp_parser_objc_class_ivars): Likewise.
4772 (cp_parser_objc_struct_declaration): Likewise.
4773 (cp_parser_omp_for_loop_init): Likewise.
4774 * parser.h (cp_parser): Change the type of local_variables_forbidden_p
4776 (LOCAL_VARS_FORBIDDEN, LOCAL_VARS_AND_THIS_FORBIDDEN, THIS_FORBIDDEN):
4779 2019-01-08 Paolo Carlini <paolo.carlini@oracle.com>
4781 * decl.c (start_decl): Improve permerror location.
4783 2019-01-08 Jonathan Wakely <jwakely@redhat.com>
4784 Jakub Jelinek <jakub@redhat.com>
4787 * decl.c (finish_function): For -Wreturn-type don't add a return *this;
4788 fixit hint if current_class_ref is NULL. Use a single if instead of
4791 2019-01-07 Paolo Carlini <paolo.carlini@oracle.com>
4793 * decl.c (start_decl): Improve two error_at locations.
4794 (expand_static_init): Likewise.
4796 2019-01-07 Marek Polacek <polacek@redhat.com>
4798 PR c++/88741 - wrong error with initializer-string.
4799 * decl.c (cp_complete_array_type): Strip any location wrappers.
4801 2019-01-07 Bernd Edlinger <bernd.edlinger@hotmail.de>
4807 * cp-tree.h (LOOKUP_ALLOW_FLEXARRAY_INIT): New flag value.
4808 * typeck2.c (digest_init_r): Raise an error for non-static
4809 initialization of a flexible array member.
4810 (process_init_constructor, massage_init_elt,
4811 process_init_constructor_array, process_init_constructor_record,
4812 process_init_constructor_union, process_init_constructor): Add the
4813 flags parameter and pass it thru.
4814 (store_init_value): Pass LOOKUP_ALLOW_FLEXARRAY_INIT parameter to
4815 digest_init_flags for static decls.
4817 2019-01-07 Jakub Jelinek <jakub@redhat.com>
4820 * cp-tree.h (cp_build_vec_convert): Declare.
4821 * parser.c (cp_parser_postfix_expression): Parse
4822 __builtin_convertvector.
4823 * constexpr.c: Include fold-const-call.h.
4824 (cxx_eval_internal_function): Handle IFN_VEC_CONVERT.
4825 (potential_constant_expression_1): Likewise.
4826 * semantics.c (cp_build_vec_convert): New function.
4827 * pt.c (tsubst_copy_and_build): Handle CALL_EXPR to
4830 2019-01-03 Jakub Jelinek <jakub@redhat.com>
4833 * decl.c (builtin_function_1): Return result of pushdecl_top_level
4834 or pushdecl rather than decl.
4836 2019-01-03 Paolo Carlini <paolo.carlini@oracle.com>
4838 * tree.c (handle_nodiscard_attribute): Improve warning location.
4840 2019-01-02 Marek Polacek <polacek@redhat.com>
4842 PR c++/88612 - ICE with -Waddress-of-packed-member.
4843 * call.c (convert_for_arg_passing): Only give warnings with tf_warning.
4844 * typeck.c (convert_for_assignment): Likewise.
4846 PR c++/88631 - CTAD failing for value-initialization.
4847 * typeck2.c (build_functional_cast): Try deducing the template
4848 arguments even if there are no arguments to deduce from.
4850 2019-01-01 Jakub Jelinek <jakub@redhat.com>
4852 Update copyright years.
4854 Copyright (C) 2019 Free Software Foundation, Inc.
4856 Copying and distribution of this file, with or without modification,
4857 are permitted in any medium without royalty provided the copyright
4858 notice and this notice are preserved.