Daily bump.
[official-gcc.git] / gcc / cp / ChangeLog
blobb980a8f861733b058045b9f0d1e7cb7f443f5f3d
1 2021-11-04  Jason Merrill  <jason@redhat.com>
3         * call.c (build_array_conv): Use range-for.
4         (build_complex_conv): Likewise.
5         * constexpr.c (clear_no_implicit_zero)
6         (reduced_constant_expression_p): Likewise.
7         * decl.c (cp_complete_array_type): Likewise.
8         * decl2.c (mark_vtable_entries): Likewise.
9         * pt.c (iterative_hash_template_arg):
10         (invalid_tparm_referent_p, unify)
11         (type_dependent_expression_p): Likewise.
12         * typeck.c (build_ptrmemfunc_access_expr): Likewise.
14 2021-11-03  Joseph Myers  <joseph@codesourcery.com>
16         PR c/103031
17         * cvt.c (convert_init): New function.
19 2021-11-02  Richard Sandiford  <richard.sandiford@arm.com>
21         * decl.c: Include langhooks-def.h.
22         (cxx_simulate_record_decl): New function.
23         * cp-objcp-common.h (cxx_simulate_record_decl): Declare.
24         (LANG_HOOKS_SIMULATE_RECORD_DECL): Override.
26 2021-10-29  Jakub Jelinek  <jakub@redhat.com>
28         PR c++/102820
29         * semantics.c (maybe_zero_constructor_nelts): New function.
30         (finish_compound_literal): Implement DR2351 - void{}.
31         If type is cv void and compound_literal has no elements, return
32         void_node.  If type is cv void and compound_literal might have no
33         elements after expansion, handle it like other dependent compound
34         literals.
36 2021-10-28  Patrick Palka  <ppalka@redhat.com>
38         PR c++/102933
39         * parser.c (cp_parser_simple_type_specifier): Adjust diagnostic
40         for using auto in parameter declaration.
41         * pt.c (extract_autos_r): Ignore CTAD placeholders.
42         (extract_autos): Use range-based for.
43         (do_auto_deduction): Use extract_autos only for the concepts TS
44         and not also for standard concepts.
45         (type_uses_auto): Likewise with for_each_template_parm.
46         (check_auto_in_tmpl_args): Just return false outside of the
47         concepts TS.  Simplify.
49 2021-10-28  Patrick Palka  <ppalka@redhat.com>
51         PR c++/102780
52         * constexpr.c (potential_constant_expression_1) <case TRUTH_*_EXPR>:
53         When tf_error isn't set, preemptively check potentiality of the
54         second operand before performing trial evaluation of the first
55         operand.
56         (potential_constant_expression_1): When tf_error is set, first check
57         potentiality quietly and return true if successful, otherwise
58         proceed noisily to give errors.
60 2021-10-27  Jakub Jelinek  <jakub@redhat.com>
62         PR c++/102854
63         * semantics.c (handle_omp_for_class_iterator,
64         finish_omp_for): Adjust c_omp_check_loop_iv_exprs caller.
66 2021-10-27  Jakub Jelinek  <jakub@redhat.com>
68         PR c++/102753
69         * constexpr.c (cxx_eval_outermost_constant_expr): Perform
70         find_immediate_fndecl discovery if is_consteval or
71         in_immediate_context () rather than if is_consteval, t != r
72         and not in immediate function's body.
74 2021-10-27  Jakub Jelinek  <jakub@redhat.com>
76         PR c++/102753
77         * cp-tree.h (saved_scope): Document that consteval_if_p member
78         is also set while processing immediate invocation.
79         (in_immediate_context): Declare.
80         * call.c (in_immediate_context): New function.
81         (immediate_invocation_p): Use it.
82         (struct in_consteval_if_p_temp_override): New class.
83         (build_over_call): Temporarily set in_consteval_if_p for processing
84         immediate invocation arguments.
85         * typeck.c (cp_build_addr_expr_1): Diagnose taking address of
86         an immediate method.  Use t instead of TREE_OPERAND (arg, 1).
87         Use in_immediate_context function.
88         * constexpr.c (find_immediate_fndecl): Handle PTRMEM_CST
89         which refers to immediate function decl.
91 2021-10-26  Marek Polacek  <polacek@redhat.com>
93         PR c++/102617
94         * parser.c (cp_parser_for): Maybe call cp_parser_init_statement
95         twice.  Warn about range-based for loops with initializer here.
96         (cp_parser_init_statement): Don't duplicate code.  Allow
97         alias-declaration in init-statement.
99 2021-10-22  Eric Gallager  <egallager@gcc.gnu.org>
101         PR other/102663
102         * Make-lang.in: Add dummy c++.install-dvi target.
104 2021-10-20  Jason Merrill  <jason@redhat.com>
106         * parser.c (cp_parser_parse_and_diagnose_invalid_type_name):
107         Pass true for declarator_p.
108         (cp_parser_nested_name_specifier_opt): Only look through
109         TYPENAME_TYPE if check_dependency_p is false.
111 2021-10-20  Jakub Jelinek  <jakub@redhat.com>
113         PR c++/102642
114         * name-lookup.c (push_local_extern_decl_alias): Don't call
115         set_decl_tls_model on error_mark_node.
116         * decl.c (make_rtl_for_nonlocal_decl): Don't call
117         set_user_assembler_name on error_mark_node.
118         * parser.c (cp_parser_oacc_declare): Ignore DECL_LOCAL_DECL_ALIAS
119         if it is error_mark_node.
120         (cp_parser_omp_declare_target): Likewise.
122 2021-10-19  Jakub Jelinek  <jakub@redhat.com>
124         PR c++/102786
125         * constexpr.c (cxx_eval_constant_expression): Don't reject
126         INTEGER_CSTs with type POINTER_TYPE to METHOD_TYPE.
128 2021-10-15  Jason Merrill  <jason@redhat.com>
130         PR c++/51851
131         PR c++/101402
132         PR c++/102033
133         PR c++/102034
134         PR c++/102039
135         PR c++/102044
136         * pt.c (determine_specialization): Remove redundant code.
137         (fn_type_unification): Check for mismatched length.
138         (type_unification_real): Ignore terminal void.
139         (get_bindings): Don't stop at void_list_node.
140         * class.c (resolve_address_of_overloaded_function): Likewise.
142 2021-10-15  Jason Merrill  <jason@redhat.com>
144         * constexpr.c (cxx_bind_parameters_in_call): Replace
145         new_call parameter with fun.
146         (cxx_eval_call_expression): Call it before instantiation.
147         (cxx_eval_outermost_constant_expr): Only instantiate fns
148         when manifestly_const_eval.
149         * typeck2.c (check_narrowing): This context is manifestly
150         constant-evaluated.
152 2021-10-14  Kwok Cheung Yeung  <kcy@codesourcery.com>
154         * decl.c (omp_declare_variant_finalize_one): Change call from
155         c_omp_mark_declare_variant to omp_mark_declare_variant.
156         * parser.c (cp_finish_omp_declare_variant): Change call from
157         c_omp_check_context_selector to omp_check_context_selector.
159 2021-10-09  Jakub Jelinek  <jakub@redhat.com>
161         * parser.c (cp_parser_omp_structured_block): Remove disallow_omp_attrs
162         argument.
163         (cp_parser_omp_structured_block_sequence): New function.
164         (cp_parser_omp_scan_loop_body): Use it.
165         (cp_parser_omp_sections_scope): Likewise.
167 2021-10-08  Martin Liska  <mliska@suse.cz>
169         * constexpr.c (maybe_warn_about_constant_value): Use new macro
170         OPTION_SET_P.
171         * decl.c (redeclaration_error_message): Likewise.
172         (cxx_init_decl_processing): Likewise.
174 2021-10-08  Jakub Jelinek  <jakub@redhat.com>
176         PR c++/102640
177         * parser.c (handle_omp_declare_target_clause): New function.
178         (cp_parser_omp_declare_target): Use it.
180 2021-10-07  Patrick Palka  <ppalka@redhat.com>
182         PR c++/61355
183         * pt.c (convert_template_argument): Perform array/function to
184         pointer conversion on the substituted type of an NTTP.
186 2021-10-07  Patrick Palka  <ppalka@redhat.com>
188         PR c++/99904
189         * pt.c (is_compatible_template_arg): Set processing_template_decl
190         around tsubst_constraint_info.
192 2021-10-07  Jonathan Wakely  <jwakely@redhat.com>
194         PR c++/102482
195         * init.c (maybe_warn_list_ctor): Do not warn for a reference to
196         a non-const std::initializer_list.
198 2021-10-06  Jakub Jelinek  <jakub@redhat.com>
200         PR c++/102612
201         * parser.c (cp_parser_jump_statement): Implement C++23 P2242R3.
202         Allow goto expressions in constexpr function bodies for C++23.
203         Adjust error message for older standards to mention it.
204         * decl.c (start_decl): Allow static and thread_local declarations
205         in constexpr function bodies for C++23.  Adjust error message for
206         older standards to mention it.
207         * constexpr.c (ensure_literal_type_for_constexpr_object): Allow
208         declarations of variables with non-literal type in constexpr function
209         bodies for C++23.  Adjust error message for older standards to mention
210         it.
211         (cxx_eval_constant_expression) <case DECL_EXPR>: Diagnose declarations
212         of initialization of static or thread_local vars.
213         (cxx_eval_constant_expression) <case GOTO_EXPR>: Diagnose goto
214         statements for C++23.
215         (potential_constant_expression_1) <case DECL_EXPR>: Swap the
216         CP_DECL_THREAD_LOCAL_P and TREE_STATIC checks.
217         (potential_constant_expression_1) <case LABEL_EXPR>: Allow labels for
218         C++23.  Adjust error message for older standards to mention it.
220 2021-10-06  Jakub Jelinek  <jakub@redhat.com>
221             Jason Merrill  <jason@redhat.com>
223         PR c++/98712
224         PR c++/102490
225         * cp-tree.h (maybe_synthesize_method): Declare.
226         * method.c (genericize_spaceship): Use
227         LOOKUP_NORMAL | LOOKUP_NONVIRTUAL | LOOKUP_DEFAULTED instead of
228         LOOKUP_NORMAL for flags.
229         (comp_info): Remove defining member.  Add complain, code, retcat.
230         (comp_info::comp_info): Adjust.
231         (do_one_comp): Split out from build_comparison_op.   Use
232         LOOKUP_NORMAL | LOOKUP_NONVIRTUAL | LOOKUP_DEFAULTED instead of
233         LOOKUP_NORMAL for flags.
234         (build_comparison_op): Add defining argument. Adjust comp_info
235         construction.  Use defining instead of info.defining.  Assert that
236         if defining, ctype is a complete type.  Walk base binfos.
237         (synthesize_method, maybe_explain_implicit_delete,
238         explain_implicit_non_constexpr): Adjust build_comparison_op callers.
239         (maybe_synthesize_method): New function.
240         * class.c (check_bases_and_members): Don't call defaulted_late_check
241         for sfk_comparison.
242         (finish_struct_1): Call it here instead after class has been
243         completed.
244         * pt.c (maybe_instantiate_noexcept): Call maybe_synthesize_method
245         instead of synthesize_method.
247 2021-10-05  Jakub Jelinek  <jakub@redhat.com>
249         PR c++/102548
250         * tree.c (apply_identity_attributes): Fix handling of the
251         case where an attribute in the list doesn't affect type
252         identity but some attribute before it does.
254 2021-10-05  Patrick Palka  <ppalka@redhat.com>
256         PR c++/102547
257         * constexpr.c (potential_constant_expression_1): Handle
258         NONTYPE_ARGUMENT_PACK.
260 2021-10-05  Patrick Palka  <ppalka@redhat.com>
262         PR c++/98930
263         * pt.c (has_value_dependent_address): Return true for a static
264         local variable from a function template.
266 2021-10-04  Marek Polacek  <polacek@redhat.com>
268         PR c++/97573
269         * typeck.c (cp_build_binary_op): Call do_warn_array_compare.
271 2021-10-03  Iain Sandoe  <iain@sandoe.co.uk>
273         PR c++/101765
274         * coroutines.cc (register_local_var_uses): Emit a sorry if
275         we encounter a VLA in the coroutine local variables.
277 2021-10-03  Iain Sandoe  <iain@sandoe.co.uk>
279         PR c++/99710
280         * coroutines.cc (await_statement_walker): Report an error if
281         an await expression is found in a handler body.
283 2021-10-03  John Eivind Helset  <jehelset@gmail.com>
285         PR c++/100673
286         * coroutines.cc (build_co_await): Guard against NULL
287         await_suspend types.
289 2021-10-03  Iain Sandoe  <iain@sandoe.co.uk>
291         PR c++/101133
292         * coroutines.cc (build_co_await): Mark co_await_expr trees
293         with TREE_SIDE_EFFECTS, also mark any containing expression.
294         (finish_co_await_expr): Mark type-dependent co_await_expr
295         trees with TREE_SIDE_EFFECTS.
297 2021-10-03  Iain Sandoe  <iain@sandoe.co.uk>
299         PR c++/99575
300         * coroutines.cc (build_co_await): Strip NOPs from
301         candidate awaiter expressions before testing to see
302         if they need a temporary.
304 2021-10-01  Martin Sebor  <msebor@redhat.com>
306         PR c/102103
307         * typeck.c (warn_for_null_address): Enhance.
308         (cp_build_binary_op): Call it also for member pointers.
310 2021-10-01  qingzhe huang  <nickhuang99@hotmail.com>
312         PR c++/101783
313         * tree.c (cp_build_qualified_type_real): Exclude typedef from
314         error.
316 2021-10-01  Jakub Jelinek  <jakub@redhat.com>
317             Richard Biener  <rguenther@suse.de>
319         PR sanitizer/102515
320         * typeck.c (cp_build_binary_op): Call ubsan_instrument_division
321         for division even for SANITIZE_SI_OVERFLOW.
323 2021-10-01  Jakub Jelinek  <jakub@redhat.com>
325         * parser.c (cp_parser_omp_clause_order): Set
326         OMP_CLAUSE_ORDER_REPRODUCIBLE for explicit reproducible: modifier.
328 2021-10-01  Jakub Jelinek  <jakub@redhat.com>
330         PR c++/102496
331         * name-lookup.c (push_local_extern_decl_alias): Return early even for
332         tls vars with non-dependent type when processing_template_decl.  For
333         CP_DECL_THREAD_LOCAL_P vars call set_decl_tls_model on alias.
335 2021-09-30  Patrick Palka  <ppalka@redhat.com>
337         PR c++/102535
338         * method.c (is_xible_helper): Don't exit early for multi-arg
339         ctors in C++20.
341 2021-09-30  Patrick Palka  <ppalka@redhat.com>
343         * parser.c (cp_parser_trait_expr): Call nreverse on the reversed
344         list of trailing arguments.
346 2021-09-30  Patrick Palka  <ppalka@redhat.com>
348         PR c++/95567
349         * method.c (build_comparison_op): Skip DECL_VIRTUAL_P fields.
351 2021-09-28  Patrick Palka  <ppalka@redhat.com>
353         PR c++/99909
354         * pt.c (coerce_template_template_parms): Keep
355         processing_template_decl set around the call to unify as well.
357 2021-09-28  Iain Sandoe  <iain@sandoe.co.uk>
359         PR c++/102454
360         * coroutines.cc (analyze_fn_parms): Clean up synthetic names for
361         unnamed function params.
362         (morph_fn_to_coro): Do not try to set a guard variable for param
363         DTORs in the ramp, unless we have exceptions active.
365 2021-09-27  Patrick Palka  <ppalka@redhat.com>
367         PR c++/102479
368         * pt.c (rewrite_template_parm): Handle single-level tsubst_args.
369         Avoid a tree cycle when assigning the DECL_TEMPLATE_PARMS for a
370         rewritten ttp.
371         (alias_ctad_tweaks): Set current_template_parms accordingly.
373 2021-09-23  Michel Morin  <mimomorin@gmail.com>
375         * parser.c (cp_keyword_starts_decl_specifier_p): Do not
376         handle RID_ATTRIBUTE.
377         (cp_parser_constructor_declarator_p): Remove now-redundant
378         checks.
379         (cp_parser_lambda_declarator_opt): Likewise.
381 2021-09-23  Michel Morin  <mimomorin@gmail.com>
383         PR c++/77565
384         * parser.c (cp_keyword_starts_decl_specifier_p): Handle more
385         decl-specifiers (typedef/inline/cv/explicit/virtual/friend).
387 2021-09-23  Patrick Palka  <ppalka@redhat.com>
389         * ptree.c (cxx_print_decl): Dump the DECL_TEMPLATE_RESULT of
390         a TEMPLATE_DECL.  Dump the DECL_TEMPLATE_INFO rather than just
391         printing its pointer value.
393 2021-09-23  Jakub Jelinek  <jakub@redhat.com>
395         PR c++/102413
396         * parser.c (cp_parser_omp_directive_args): Diagnose if omp::directive
397         is not followed by a balanced token sequence starting with open paren.
399 2021-09-22  Patrick Palka  <ppalka@redhat.com>
401         DR 2446
402         PR c++/102412
403         * constexpr.c (cxx_eval_constant_expression)
404         <case TEMPLATE_ID_EXPR>: Check value_dependent_expression_p
405         instead of processing_template_decl.
406         * pt.c (value_dependent_expression_p) <case TEMPLATE_ID_EXPR>:
407         Return true only if any_dependent_template_arguments_p.
408         (instantiation_dependent_r) <case CALL_EXPR>: Remove this case.
409         <case TEMPLATE_ID_EXPR>: Likewise.
411 2021-09-22  Jakub Jelinek  <jakub@redhat.com>
413         * parser.c (cp_parser_omp_clause_allocate): Parse allocate clause
414         modifiers.
415         * semantics.c (finish_omp_clauses) <OMP_CLAUSE_ALLOCATE>: Perform
416         semantic analysis of OMP_CLAUSE_ALLOCATE_ALIGN.
417         * pt.c (tsubst_omp_clauses) <case OMP_CLAUSE_ALLOCATE>: Handle
418         also OMP_CLAUSE_ALLOCATE_ALIGN.
420 2021-09-22  Barrett Adair  <barrettellisadair@gmail.com>
422         * pt.c (find_parm_usage_r): New walk_tree callback to find func
423         parms.
424         (any_template_arguments_need_structural_equality_p): New special
425         case.
427 2021-09-21  wangpc  <pc.wang@linux.alibaba.com>
429         * decl.c (start_decl_1): Move verify_type_context to ...
430         (cp_finish_decl): ... to here.
432 2021-09-18  Jakub Jelinek  <jakub@redhat.com>
434         * parser.c (cp_parser_omp_clause_order): Parse unconstrained
435         and reproducible modifiers.
436         (OMP_DISTRIBUTE_CLAUSE_MASK): Add order clause.
438 2021-09-18  Jakub Jelinek  <jakub@redhat.com>
440         * parser.c (cp_parser_omp_clause_default): Handle private and
441         firstprivate arguments, adjust diagnostics on unknown argument.
442         * cp-gimplify.c (cxx_omp_finish_clause): Handle OMP_CLAUSE_PRIVATE.
444 2021-09-18  Jason Merrill  <jason@redhat.com>
446         * cp-tree.h (dependentish_scope_p): Declare.
447         * pt.c (dependentish_scope_p): New.
448         * parser.c (cp_parser_lookup_name): Return a TYPENAME_TYPE
449         for lookup of a type in a dependent object.
450         (cp_parser_template_id): Handle TYPENAME_TYPE.
451         (cp_parser_template_name): If we're looking for a type,
452         a name followed by < names a template.
454 2021-09-18  Jason Merrill  <jason@redhat.com>
456         * cp-tree.h: Fix typo in LANG_FLAG list.
458 2021-09-17  Jakub Jelinek  <jakub@redhat.com>
460         * cp-tree.h (finish_omp_atomic): Add r and weak arguments.
461         * parser.c (cp_parser_omp_atomic): Update function comment for
462         OpenMP 5.1 atomics, parse OpenMP 5.1 atomics and fail, compare and
463         weak clauses.
464         * semantics.c (finish_omp_atomic): Add r and weak arguments, handle
465         them, handle COND_EXPRs.
466         * pt.c (tsubst_expr): Adjust for COND_EXPR forms that
467         finish_omp_atomic can now produce.
469 2021-09-16  Patrick Palka  <ppalka@redhat.com>
471         PR c++/98486
472         * constraint.cc (get_normalized_constraints_from_decl): Always
473         look up constraints using the most general template.
474         * decl.c (grokdeclarator): Set constraints on a static data
475         member template.
476         * pt.c (determine_specialization): Check constraints on a
477         variable template.
479 2021-09-16  Iain Sandoe  <iain@sandoe.co.uk>
481         * coroutines.cc (await_statement_walker): Code cleanups.
483 2021-09-16  Jason Merrill  <jason@redhat.com>
485         * constexpr.c (cxx_eval_outermost_constant_expr): Use
486         protected_set_expr_location.
488 2021-09-15  Patrick Palka  <ppalka@redhat.com>
490         PR c++/101904
491         * call.c (build_user_type_conversion_1): Add tf_conv to complain.
492         (add_candidates): When in a SFINAE context, instead of adding a
493         candidate to bad_fns just mark it unviable.
495 2021-09-15  Jason Merrill  <jason@redhat.com>
497         * cp-tree.h (parsing_function_declarator): Declare.
498         * name-lookup.c (set_decl_context_in_fn): Use it.
499         * parser.c (cp_parser_direct_declarator): Use it.
500         (parsing_function_declarator): New.
502 2021-09-15  Jakub Jelinek  <jakub@redhat.com>
504         PR c++/88578
505         PR c++/102295
506         * typeck2.c (split_nonconstant_init_1): Don't throw away empty
507         initializers of flexible array members if they have non-zero type
508         size.
510 2021-09-15  Patrick Palka  <ppalka@redhat.com>
512         PR c++/102050
513         * decl.c (grok_special_member_properties): Set
514         TYPE_HAS_COPY_CTOR, TYPE_HAS_DEFAULT_CONSTRUCTOR
515         and TYPE_HAS_LIST_CTOR independently from each other.
517 2021-09-15  Jason Merrill  <jason@redhat.com>
519         * decl.c (cxx_init_decl_processing): Only warn about odd
520         interference sizes if they were specified with --param.
522 2021-09-15  Jason Merrill  <jason@redhat.com>
524         PR c++/48396
525         * cp-tree.h (enum cp_tree_index): Remove CPTI_TYPE_INFO_PTR_TYPE.
526         (type_info_ptr_type): Remove.
527         * rtti.c (init_rtti_processing): Don't predeclare std::type_info.
528         (typeid_ok_p): Check for null const_type_info_type_node.
529         (type_info_ptr_type, get_void_tinfo_ptr): New fns.
530         (get_tinfo_decl_dynamic, get_tinfo_ptr): Use them.
531         (ptr_initializer, ptm_initializer, get_pseudo_ti_init): Use them.
532         (get_tinfo_desc): Use const_ptr_type_node.
534 2021-09-15  Jason Merrill  <jason@redhat.com>
536         * parser.c (cp_parser_template_name): Move object type.
537         (cp_parser_pre_parsed_nested_name_specifier): Likewise.
539 2021-09-15  Jason Merrill  <jason@redhat.com>
541         * parser.c (cp_parser_unqualified_id): Only complain about ~A<T> in
542         a declarator.
544 2021-09-14  Iain Sandoe  <iain@sandoe.co.uk>
546         * coroutines.cc (struct param_info): Add copy_var.
547         (build_actor_fn): Use simplified param references.
548         (register_param_uses): Likewise.
549         (rewrite_param_uses): Likewise.
550         (analyze_fn_parms): New function.
551         (coro_rewrite_function_body): Add proxies for the fn
552         parameters to the outer bind scope of the rewritten code.
553         (morph_fn_to_coro): Use simplified version of param ref.
555 2021-09-14  Iain Sandoe  <iain@sandoe.co.uk>
557         * coroutines.cc (coro_resume_fn_id, coro_destroy_fn_id,
558         coro_promise_id, coro_frame_needs_free_id, coro_resume_index_id,
559         coro_self_handle_id, coro_actor_continue_id,
560         coro_frame_i_a_r_c_id): New.
561         (coro_init_identifiers): Initialize new name identifiers.
562         (coro_promise_type_found_p): Use pre-built identifiers.
563         (struct await_xform_data): Remove unused fields.
564         (transform_await_expr): Delete code that is now unused.
565         (build_actor_fn): Simplify interface, use pre-built identifiers and
566         remove transforms that are no longer needed.
567         (build_destroy_fn): Use revised field names.
568         (register_local_var_uses): Use pre-built identifiers.
569         (coro_rewrite_function_body): Simplify interface, use pre-built
570         identifiers.  Generate proxy vars in the outer bind expr scope for the
571         implementation state that we wish to expose.
572         (morph_fn_to_coro): Adjust comments for new variable names, use pre-
573         built identifiers.  Remove unused code to generate frame entries for
574         the implementation state.  Adjust call for build_actor_fn.
576 2021-09-14  Patrick Palka  <ppalka@redhat.com>
578         PR c++/102163
579         * constexpr.c (cxx_eval_call_expression): After evaluating a
580         subobject constructor call for an empty union member, produce a
581         side effect that makes sure the member gets activated.
583 2021-09-14  Jakub Jelinek  <jakub@redhat.com>
585         PR c++/102295
586         * decl.c (layout_var_decl): For aggregates ending with a flexible
587         array member, add the size of the initializer for that member to
588         DECL_SIZE and DECL_SIZE_UNIT.
590 2021-09-14  Jakub Jelinek  <jakub@redhat.com>
592         PR c++/102305
593         * method.c (is_xible_helper): Call complete_type on to.
595 2021-09-14  Jason Merrill  <jason@redhat.com>
597         * decl.c (cxx_init_decl_processing): Don't warn if L1 cache line
598         size is smaller than maxalign.
600 2021-09-13  Jason Merrill  <jason@redhat.com>
602         * constexpr.c (maybe_warn_about_constant_value):
603         Complain about std::hardware_destructive_interference_size.
604         (cxx_eval_constant_expression): Call it.
605         * decl.c (cxx_init_decl_processing): Check
606         --param *-interference-size values.
608 2021-09-13  Patrick Palka  <ppalka@redhat.com>
610         PR c++/101764
611         * cp-tree.h (PACK_EXPANSION_FORCE_EXTRA_ARGS_P): New accessor
612         macro.
613         * pt.c (has_extra_args_mechanism_p): New function.
614         (find_parameter_pack_data::found_extra_args_tree_p): New data
615         member.
616         (find_parameter_packs_r): Set ppd->found_extra_args_tree_p
617         appropriately.
618         (make_pack_expansion): Set PACK_EXPANSION_FORCE_EXTRA_ARGS_P if
619         ppd.found_extra_args_tree_p.
620         (use_pack_expansion_extra_args_p): Return true if there were
621         unsubstituted packs and PACK_EXPANSION_FORCE_EXTRA_ARGS_P.
622         (tsubst_pack_expansion): Pass the pack expansion to
623         use_pack_expansion_extra_args_p.
625 2021-09-10  Jakub Jelinek  <jakub@redhat.com>
627         * parser.c (cp_parser_omp_atomic): Allow acq_rel on atomic read/write
628         and acq_rel/acquire clauses on update.
629         * semantics.c (finish_omp_atomic): Adjust c_finish_omp_atomic caller.
631 2021-09-08  Richard Biener  <rguenther@suse.de>
633         PR c++/102228
634         * cp-tree.h (ANON_AGGR_TYPE_FIELD): New define.
635         * decl.c (fixup_anonymous_aggr): Wipe RTTI info put in
636         place on invalid code.
637         * decl2.c (reset_type_linkage): Guard CLASSTYPE_TYPEINFO_VAR
638         access.
639         * module.cc (trees_in::read_class_def): Likewise.  Reconstruct
640         ANON_AGGR_TYPE_FIELD.
641         * semantics.c (finish_member_declaration): Populate
642         ANON_AGGR_TYPE_FIELD for anon aggregate typed members.
643         * typeck.c (lookup_anon_field): Remove DFS search and return
644         ANON_AGGR_TYPE_FIELD directly.
646 2021-09-07  Jakub Jelinek  <jakub@redhat.com>
648         PR c++/100495
649         * constexpr.c (maybe_save_constexpr_fundef): Save body even for
650         constexpr deleting dtors.
651         (cxx_eval_call_expression): Don't use DECL_CLONED_FUNCTION for
652         deleting dtors.
654 2021-09-07  Marcel Vollweiler  <marcel@codesourcery.com>
656         * parser.c (cp_parser_omp_flush): Parse 'seq_cst' clause on 'flush'
657         directive.
658         * semantics.c (finish_omp_flush): Handle MEMMODEL_SEQ_CST.
660 2021-09-03  Iain Sandoe  <iain@sandoe.co.uk>
662         * coroutines.cc (register_local_var_uses): Do not mangle
663         frame entries for the outermost scope.  Record the outer
664         scope as nesting depth 0.
666 2021-09-03  Iain Sandoe  <iain@sandoe.co.uk>
668         * coroutines.cc (coro_build_artificial_var): New.
669         (build_actor_fn): Use var builder, rename vars to use
670         implementation namespace.
671         (coro_rewrite_function_body): Likewise.
672         (morph_fn_to_coro): Likewise.
674 2021-09-03  Iain Sandoe  <iain@sandoe.co.uk>
676         * coroutines.cc (transform_local_var_uses): Record
677         frame offset expressions as DECL_VALUE_EXPRs instead of
678         rewriting them.
680 2021-09-03  Patrick Palka  <ppalka@redhat.com>
682         PR c++/101904
683         * call.c (build_this_conversion): New function, split out from
684         add_function_candidate.
685         (add_function_candidate): New parameter shortcut_bad_convs.
686         Document it.  Use build_this_conversion.  Stop at the first bad
687         argument conversion when shortcut_bad_convs is true.
688         (add_template_candidate_real): New parameter shortcut_bad_convs.
689         Use build_this_conversion to check the 'this' conversion before
690         attempting deduction.  When the rejection reason code is
691         rr_bad_arg_conversion, pass -1 instead of 0 as the viable
692         parameter to add_candidate.  Pass 'convs' to add_candidate.
693         (add_template_candidate): New parameter shortcut_bad_convs.
694         (add_template_conv_candidate): Pass false as shortcut_bad_convs
695         to add_template_candidate_real.
696         (add_candidates): Prefer to shortcut bad conversions during
697         overload resolution under the assumption that we'll eventually
698         see a strictly viable candidate.  If this assumption turns out
699         to be false, re-process the non-strictly viable candidates
700         without shortcutting those bad conversions.
702 2021-09-03  Jason Merrill  <jason@redhat.com>
704         * pt.c (limit_bad_template_recursion): Suppress -Wunused for decls
705         we decide not to instantiate.
707 2021-09-03  Jakub Jelinek  <jakub@redhat.com>
709         PR target/102024
710         * class.c (build_base_field): Use SET_DECL_FIELD_ABI_IGNORED
711         instead of writing to DECL_FIELD_ABI_IGNORED.
712         (layout_class_type): Likewise.  In the place where zero-width
713         bitfields used to be removed, use
714         SET_DECL_FIELD_CXX_ZERO_WIDTH_BIT_FIELD on those fields instead.
716 2021-09-01  Iain Sandoe  <iain@sandoe.co.uk>
718         * call.c (build_over_call): Handle unavailable state in addition to
719         deprecation.
720         * class.c (type_build_ctor_call): Likewise.
721         (type_build_dtor_call): Likewise.
722         * cp-tree.h: Rename cp_warn_deprecated_use to
723         cp_handle_deprecated_or_unavailable.
724         * decl.c (duplicate_decls): Merge unavailability.
725         (grokdeclarator): Handle unavailability in addition to deprecation.
726         (type_is_unavailable): New.
727         (grokparms): Handle unavailability in addition to deprecation.
728         * decl.h (enum deprecated_states): Add
729         UNAVAILABLE_DEPRECATED_SUPPRESS.
730         * decl2.c (cplus_decl_attributes): Propagate unavailability to
731         templates.
732         (cp_warn_deprecated_use): Rename to ...
733         (cp_handle_deprecated_or_unavailable): ... this and amend to handle
734         the unavailable case. It remains a warning in the case of deprecation
735         but becomes an error in the case of unavailability.
736         (cp_warn_deprecated_use_scopes): Handle unavailability.
737         (mark_used): Likewise.
738         * parser.c (cp_parser_template_name): Likewise.
739         (cp_parser_template_argument): Likewise.
740         (cp_parser_parameter_declaration_list): Likewise.
741         * typeck.c (build_class_member_access_expr): Likewise.
742         (finish_class_member_access_expr): Likewise.
743         * typeck2.c (build_functional_cast_1): Likewise.
745 2021-09-01  Iain Sandoe  <iain@sandoe.co.uk>
747         * coroutines.cc (build_actor_fn): Add begin/finish clauses
748         to the initial test in the actor function.
750 2021-09-01  Iain Sandoe  <iain@sandoe.co.uk>
752         * coroutines.cc (await_statement_walker): Use build_stmt and
753         add_stmt instead of build1 and finish_expr_stmt.
755 2021-08-31  Jason Merrill  <jason@redhat.com>
757         * coroutines.cc (flatten_await_stmt): Fix copyo.
758         * decl.c (reshape_init_class): Simplify.
759         * module.cc (module_state::read_language): Add null check.
760         * parser.c (build_range_temp): Avoid type_uses_auto.
761         (cp_parser_class_specifier_1): Add null check.
763 2021-08-31  Patrick Palka  <ppalka@redhat.com>
765         PR c++/12672
766         * call.c (rejection_reason::call_varargs_p): Rename this
767         previously unused member to ...
768         (rejection_reason::least_p): ... this.
769         (arity_rejection): Add least_p parameter.
770         (add_template_candidate_real): When there are explicit
771         template arguments, check that the arity of the call agrees with
772         the arity of the function before attempting deduction.
773         (print_arity_information): Add least_p parameter.
774         (print_z_candidate): Adjust call to print_arity_information.
776 2021-08-31  Martin Sebor  <msebor@redhat.com>
778         * parser.c (cp_parser_selection_statement): Use direct initialization
779         instead of copy.
781 2021-08-31  Jason Merrill  <jason@redhat.com>
783         * constexpr.c (explain_invalid_constexpr_fn): Use iloc_sentinel.
785 2021-08-31  Jason Merrill  <jason@redhat.com>
787         PR c++/92193
788         * cp-tree.h (FNDECL_MANIFESTLY_CONST_EVALUATED): New.
789         * constexpr.c (cxx_eval_call_expression): Set it.
790         * pt.c (neglectable_inst_p): Check it.
792 2021-08-31  Marcel Vollweiler  <marcel@codesourcery.com>
794         * parser.c (cp_parser_omp_clause_device): Parse device-modifiers 'device_num'
795         and 'ancestor' in 'target device' clauses.
796         * semantics.c (finish_omp_clauses): Error handling. Constant device ids must
797         evaluate to '1' if 'ancestor' is used.
799 2021-08-30  Jason Merrill  <jason@redhat.com>
801         PR c++/96286
802         * cp-tree.h (struct lang_type): Add erroneous bit-field.
803         (CLASSTYPE_ERRONEOUS): New.
804         * pt.c (limit_bad_template_recursion): Check it.
805         (instantiate_class_template_1): Set it.
807 2021-08-30  Jason Merrill  <jason@redhat.com>
809         * constexpr.c (cxx_eval_outermost_constant_expr): Copy
810         expr location to result.
812 2021-08-30  Jason Merrill  <jason@redhat.com>
814         PR c++/101460
815         * cp-tree.h (cxx_constant_value_sfinae): Declare.
816         * constexpr.c (cxx_constant_value_sfinae): New.
817         * pt.c (fold_targs_r, maybe_fold_fn_template_args): New.
818         (tsubst_copy_and_build) [CALL_EXPR]: Call
819         maybe_fold_fn_template_args.
821 2021-08-30  Jason Merrill  <jason@redhat.com>
823         * parser.c (cp_parser_simple_requirement): Warn about missing
824         requires.
826 2021-08-27  Jason Merrill  <jason@redhat.com>
828         * typeck2.c (build_x_arrow): Do set TREE_TYPE when operand is
829         a dependent pointer.
831 2021-08-25  Andrew Pinski  <apinski@marvell.com>
833         PR c++/66590
834         * cp-objcp-common.c (cxx_block_may_fallthru): Handle
835         CLEANUP_STMT for the case which will be try/finally.
837 2021-08-25  Jakub Jelinek  <jakub@redhat.com>
839         PR c++/102019
840         * init.c (build_value_init_noctor): Ignore unnamed zero-width
841         bitfields.
843 2021-08-23  Jakub Jelinek  <jakub@redhat.com>
845         * parser.c (cp_parser_omp_clause_num_tasks,
846         cp_parser_omp_clause_grainsize): Parse the optional strict: modifier.
848 2021-08-20  Jakub Jelinek  <jakub@redhat.com>
850         * parser.c (cp_parser_handle_statement_omp_attributes): Determine if
851         PRAGMA_OMP_ERROR directive is C_OMP_DIR_STANDALONE.
852         (cp_parser_omp_error): New function.
853         (cp_parser_pragma): Handle PRAGMA_OMP_ERROR.
855 2021-08-20  Jakub Jelinek  <jakub@redhat.com>
857         * parser.c (cp_parser_omp_clause_depend_sink): Reject spurious
858         comma at the end of list.  Don't parse closing paren here...
859         (cp_parser_omp_clause_depend): ... but here instead.
861 2021-08-19  Patrick Palka  <ppalka@redhat.com>
863         PR c++/101803
864         * cp-tree.h (CONSTRUCTOR_IS_PAREN_INIT): Clarify comment.
866 2021-08-19  Jakub Jelinek  <jakub@redhat.com>
868         * parser.c (cp_parser_omp_requires): Don't call cp_lexer_nth_token_is
869         and optionally consume token if current token is CPP_EOF,
870         CPP_PRAGMA_EOL or CPP_CLOSE_PAREN.
872 2021-08-19  Jakub Jelinek  <jakub@redhat.com>
874         * parser.c (cp_parser_omp_nothing): Use cp_parser_require_pragma_eol
875         instead of cp_parser_skip_to_pragma_eol.
877 2021-08-18  Patrick Palka  <ppalka@redhat.com>
879         PR c++/101344
880         PR c++/101803
881         * cp-tree.h (CONSTRUCTOR_BRACES_ELIDED_P): Define.
882         * decl.c (reshape_init_r): Set it.
883         * pt.c (collect_ctor_idx_types): Recurse into a sub-CONSTRUCTOR
884         iff CONSTRUCTOR_BRACES_ELIDED_P.
886 2021-08-18  Patrick Palka  <ppalka@redhat.com>
888         PR c++/101883
889         * pt.c (convert_template_argument): Pass LOOKUP_IMPLICIT to
890         do_auto_deduction.
892 2021-08-18  Jakub Jelinek  <jakub@redhat.com>
894         * parser.c (cp_parser_omp_nothing): New function.
895         (cp_parser_pragma): Handle PRAGMA_OMP_NOTHING.
897 2021-08-18  Jakub Jelinek  <jakub@redhat.com>
899         * parser.c (cp_parser_omp_ordered): Return true instead of
900         false after emitting errors that the directive is not allowed in
901         pragma_stmt context.
902         (cp_parser_omp_target_update): Likewise.
903         (cp_parser_omp_cancellation_point): Change return type from void to
904         bool, return false if the directive should be ignored in pragma_stmt
905         contexts.
906         (cp_parser_omp_target_enter_data, cp_parser_omp_target_exit_data):
907         Change return type from tree to bool, return false if the
908         directive should be ignored in pragma_stmt contexts.
909         (cp_parser_omp_target): Adjust callers of cp_parser_omp_target_*_data,
910         return their result directly.
911         (cp_parser_pragma): For PRAGMA_OMP_CANCELLATION_POINT return what
912         cp_parser_omp_cancellation_point returned.  Return true instead of
913         false after emitting errors that the directive is not allowed in
914         pragma_stmt context.
916 2021-08-17  Jakub Jelinek  <jakub@redhat.com>
918         PR c++/101539
919         * cp-tree.h (enum cp_trait_kind): Add CPTK_IS_LAYOUT_COMPATIBLE.
920         (enum cp_built_in_function): Add CP_BUILT_IN_IS_CORRESPONDING_MEMBER.
921         (fold_builtin_is_corresponding_member, next_common_initial_seqence,
922         layout_compatible_type_p): Declare.
923         * parser.c (cp_parser_primary_expression): Handle
924         RID_IS_LAYOUT_COMPATIBLE.
925         (cp_parser_trait_expr): Likewise.
926         * cp-objcp-common.c (names_builtin_p): Likewise.
927         * constraint.cc (diagnose_trait_expr): Handle
928         CPTK_IS_LAYOUT_COMPATIBLE.
929         * decl.c (cxx_init_decl_processing): Register
930         __builtin_is_corresponding_member builtin.
931         * constexpr.c (cxx_eval_builtin_function_call): Handle
932         CP_BUILT_IN_IS_CORRESPONDING_MEMBER builtin.
933         * semantics.c (is_corresponding_member_union,
934         is_corresponding_member_aggr, fold_builtin_is_corresponding_member):
935         New functions.
936         (trait_expr_value): Handle CPTK_IS_LAYOUT_COMPATIBLE.
937         (finish_trait_expr): Likewise.
938         * typeck.c (next_common_initial_seqence, layout_compatible_type_p):
939         New functions.
940         * cp-gimplify.c (cp_gimplify_expr): Fold
941         CP_BUILT_IN_IS_CORRESPONDING_MEMBER.
942         (cp_fold): Likewise.
943         * tree.c (builtin_valid_in_constant_expr_p): Handle
944         CP_BUILT_IN_IS_CORRESPONDING_MEMBER.
945         * cxx-pretty-print.c (pp_cxx_trait_expression): Handle
946         CPTK_IS_LAYOUT_COMPATIBLE.
947         * class.c (remove_zero_width_bit_fields): Remove.
948         (layout_class_type): Don't call it.
950 2021-08-17  Jakub Jelinek  <jakub@redhat.com>
952         * parser.c (OMP_SCOPE_CLAUSE_MASK): Define.
953         (cp_parser_omp_scope): New function.
954         (cp_parser_omp_construct, cp_parser_pragma): Handle PRAGMA_OMP_SCOPE.
955         * pt.c (tsubst_expr): Handle OMP_SCOPE.
957 2021-08-12  Jakub Jelinek  <jakub@redhat.com>
959         * parser.c (cp_parser_omp_clause_name): Parse filter clause name.
960         (cp_parser_omp_clause_filter): New function.
961         (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_FILTER.
962         (OMP_MASKED_CLAUSE_MASK): Define.
963         (cp_parser_omp_masked): New function.
964         (cp_parser_omp_parallel): Handle parallel masked.
965         (cp_parser_omp_construct, cp_parser_pragma): Handle PRAGMA_OMP_MASKED.
966         * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_FILTER.
967         * pt.c (tsubst_omp_clauses): Likewise.
968         (tsubst_expr): Handle OMP_MASKED.
970 2021-08-12  Sergei Trofimovich  <siarheit@google.com>
972         PR c++/101219
973         * pt.c (tsubst_copy_and_build): Use build_ptrmemfunc_access_expr
974         to construct ptrmemfunc expression instantiation.
976 2021-08-12  Tobias Burnus  <tobias@codesourcery.com>
978         * parser.c (cp_parser_omp_clause_proc_bind): Accept
979         'primary' as alias for 'master'.
981 2021-08-12  Jakub Jelinek  <jakub@redhat.com>
983         * cp-tree.h (omp_declare_target_attr): New type.
984         (struct saved_scope): Change type of omp_declare_target_attribute
985         from int to vec<omp_declare_target_attr, va_gc> * and move it.
986         * parser.c (cp_parser_omp_declare_target): Instead of
987         incrementing scope_chain->omp_declare_target_attribute, push
988         a struct containing parser->lexer->in_omp_attribute_pragma to
989         the vector.
990         (cp_parser_omp_end_declare_target): Instead of decrementing
991         scope_chain->omp_declare_target_attribute, pop a structure
992         from it.  Diagnose mismatching declare target vs.
993         end declare target syntax.
994         * semantics.c (finish_translation_unit): Use vec_safe_length
995         and vec_safe_truncate on scope_chain->omp_declare_target_attributes.
996         * decl2.c (cplus_decl_attributes): Use vec_safe_length
997         on scope_chain->omp_declare_target_attributes.
999 2021-08-12  Jakub Jelinek  <jakub@redhat.com>
1001         * parser.c (cp_parser_lambda_body): Add temp overrides
1002         for parser->{omp_declare_simd,oacc_routine,omp_attrs_forbidden_p}.
1003         (cp_parser_statement): Restore parser->omp_attrs_forbidden_p for
1004         cp_parser_declaration_statement.
1005         (cp_parser_default_argument): Add temp override for
1006         parser->omp_attrs_forbidden_p.
1007         (cp_parser_late_parsing_omp_declare_simd): Diagnose declare simd
1008         or declare variant in attribute syntax on a declaration immediately
1009         following an OpenMP construct in pragma syntax.
1011 2021-08-12  Jakub Jelinek  <jakub@redhat.com>
1013         PR c++/94162
1014         * method.c (cat_tag_for): Return cc_last for !CLASS_TYPE_P
1015         or for classes not in std namespace.
1017 2021-08-12  Jakub Jelinek  <jakub@redhat.com>
1019         * name-lookup.c (finish_using_directive): Diagnose omp::directive
1020         or omp::sequence attributes on using-directive.
1022 2021-08-12  Jakub Jelinek  <jakub@redhat.com>
1024         * parser.c (cp_parser_block_declaration): Call
1025         cp_parser_using_directive for C++11 attributes followed by
1026         using namespace tokens.
1027         (cp_parser_using_directive): Parse C++11 attributes at the start
1028         of the directive rather than at the end, only parse GNU attributes
1029         at the end.
1031 2021-08-12  Patrick Palka  <ppalka@redhat.com>
1033         PR c++/101663
1034         * constexpr.c (cxx_eval_store_expression): Handle the lval=true
1035         case in the early exit code path for empty stores with mismatched
1036         types.
1038 2021-08-11  Patrick Palka  <ppalka@redhat.com>
1040         PR c++/101725
1041         DR 2082
1042         * cp-tree.h (unevaluated_p): Return true for REQUIRES_EXPR.
1043         * decl.c (local_variable_p_walkfn): Don't walk into unevaluated
1044         operands.
1045         * parser.c (cp_parser_primary_expression) <case CPP_NAME>: Never
1046         reject uses of local variables in unevaluated contexts.
1047         * tree.c (cp_walk_subtrees) <case REQUIRES_EXPR>: Increment
1048         cp_unevaluated_operand.  Use cp_walk_tree directly instead of
1049         WALK_SUBTREE to avoid the goto.  Use REQUIRES_EXPR_REQS instead
1050         of TREE_OPERAND directly.
1052 2021-08-11  Jakub Jelinek  <jakub@redhat.com>
1054         PR c++/101786
1055         * decl2.c (var_defined_without_dynamic_init): Return true for
1056         DECL_DECLARED_CONSTINIT_P with complete type and trivial destructor.
1058 2021-08-11  Patrick Palka  <ppalka@redhat.com>
1060         PR c++/79501
1061         * parser.c (maybe_adjust_declarator_for_dguide): New, split
1062         out from ...
1063         (cp_parser_init_declarator): ... here.
1064         (cp_parser_member_declaration): Use it.
1066 2021-08-11  Patrick Palka  <ppalka@redhat.com>
1068         PR c++/89062
1069         * parser.c (cp_parser_parameter_declaration_list): Don't call
1070         grokdeclarator if cp_parser_error_occurred.
1071         (cp_parser_parameter_declaration): Simulate an error if we see
1072         the beginning of a CTAD form, i.e. if we see an opening brace
1073         after the decl-specifier-seq and the type is a CTAD placeholder.
1075 2021-08-10  Jakub Jelinek  <jakub@redhat.com>
1077         * parser.c (cp_parser_member_declaration): Move odsd declaration
1078         before cp_parser_using_declaration call to avoid errors with
1079         GCC 4.8 to 6.
1081 2021-08-10  Jakub Jelinek  <jakub@redhat.com>
1083         * parser.h (struct cp_omp_declare_simd_data): Remove
1084         in_omp_attribute_pragma and clauses members, add loc and attribs.
1085         (struct cp_oacc_routine_data): Remove loc member, add clauses
1086         member.
1087         * parser.c (cp_finalize_omp_declare_simd): New function.
1088         (cp_parser_handle_statement_omp_attributes): Mention in
1089         function comment the function is used also for
1090         attribute-declaration.
1091         (cp_parser_handle_directive_omp_attributes): New function.
1092         (cp_parser_statement): Don't call
1093         cp_parser_handle_statement_omp_attributes if statement doesn't
1094         have attribute-specifier-seq at the beginning at all or if
1095         if those attributes don't appertain to the statement.
1096         (cp_parser_simple_declaration): Call
1097         cp_parser_handle_directive_omp_attributes and
1098         cp_finalize_omp_declare_simd.
1099         (cp_parser_explicit_instantiation): Likewise.
1100         (cp_parser_init_declarator): Initialize prefix_attributes
1101         only after parsing declarators.
1102         (cp_parser_direct_declarator): Call
1103         cp_parser_handle_directive_omp_attributes and
1104         cp_finalize_omp_declare_simd.
1105         (cp_parser_member_declaration): Likewise.
1106         (cp_parser_single_declaration): Likewise.
1107         (cp_parser_omp_declare_simd): Don't initialize
1108         data.in_omp_attribute_pragma, instead initialize
1109         data.attribs[0] and data.attribs[1].
1110         (cp_finish_omp_declare_variant): Remove
1111         in_omp_attribute_pragma argument, instead use
1112         parser->lexer->in_omp_attribute_pragma.
1113         (cp_parser_late_parsing_omp_declare_simd): Adjust
1114         cp_finish_omp_declare_variant caller.  Handle attribute-syntax
1115         declare simd/variant.
1117 2021-08-06  Tamar Christina  <tamar.christina@arm.com>
1119         * cp-objcp-common.h (cxx_simulate_enum_decl): Pass vec<> by pointer.
1120         * decl.c (cxx_simulate_enum_decl): Likewise.
1122 2021-08-04  Jakub Jelinek  <jakub@redhat.com>
1124         PR c++/101759
1125         * parser.c (cp_parser_default_argument): Temporarily override
1126         parser->omp_declare_simd and parser->oacc_routine to NULL.
1128 2021-08-02  Patrick Palka  <ppalka@redhat.com>
1130         PR c++/100828
1131         * logic.cc (formula::formula): Use emplace_back instead of
1132         push_back.
1133         (formula::branch): Insert a copy of m_current directly after
1134         m_current instead of at the end of the list.
1135         (formula::erase): Define.
1136         (decompose_formula): Remove.
1137         (decompose_antecedents): Remove.
1138         (decompose_consequents): Remove.
1139         (derive_proofs): Remove.
1140         (max_problem_size): Remove.
1141         (diagnose_constraint_size): Remove.
1142         (subsumes_constraints_nonnull): Rewrite directly in terms of
1143         decompose_clause and derive_proof, interleaving decomposition
1144         with implication checking.  Remove limit on constraint complexity.
1145         Use formula::erase to free the current clause before moving on to
1146         the next one.
1148 2021-07-31  Jason Merrill  <jason@redhat.com>
1150         PR c++/96636
1151         * decl.c (fixup_anonymous_aggr): Clear TYPE_NEEDS_CONSTRUCTING
1152         after error.
1154 2021-07-31  Jason Merrill  <jason@redhat.com>
1156         * ptree.c (cxx_print_type) [TYPE_PACK_EXPANSION]: Also print
1157         PACK_EXPANSION_PATTERN.
1159 2021-07-31  Jakub Jelinek  <jakub@redhat.com>
1161         * parser.c (cp_parser_declaration): Handle OpenMP directives
1162         in attribute-declaration.
1164 2021-07-30  Jakub Jelinek  <jakub@redhat.com>
1166         PR c++/101539
1167         * cp-tree.h (enum cp_trait_kind): Add
1168         CPTK_IS_POINTER_INTERCONVERTIBLE_BASE_OF.
1169         (enum cp_built_in_function): Add
1170         CP_BUILT_IN_IS_POINTER_INTERCONVERTIBLE_WITH_CLASS.
1171         (fold_builtin_is_pointer_inverconvertible_with_class): Declare.
1172         * parser.c (cp_parser_primary_expression): Handle
1173         RID_IS_POINTER_INTERCONVERTIBLE_BASE_OF.
1174         (cp_parser_trait_expr): Likewise.
1175         * cp-objcp-common.c (names_builtin_p): Likewise.
1176         * constraint.cc (diagnose_trait_expr): Handle
1177         CPTK_IS_POINTER_INTERCONVERTIBLE_BASE_OF.
1178         * decl.c (cxx_init_decl_processing): Register
1179         __builtin_is_pointer_interconvertible_with_class builtin.
1180         * constexpr.c (cxx_eval_builtin_function_call): Handle
1181         CP_BUILT_IN_IS_POINTER_INTERCONVERTIBLE_WITH_CLASS builtin.
1182         * semantics.c (pointer_interconvertible_base_of_p,
1183         first_nonstatic_data_member_p,
1184         fold_builtin_is_pointer_inverconvertible_with_class): New functions.
1185         (trait_expr_value): Handle CPTK_IS_POINTER_INTERCONVERTIBLE_BASE_OF.
1186         (finish_trait_expr): Likewise.  Formatting fix.
1187         * cp-gimplify.c (cp_gimplify_expr): Fold
1188         CP_BUILT_IN_IS_POINTER_INTERCONVERTIBLE_WITH_CLASS.  Call
1189         fndecl_built_in_p just once.
1190         (cp_fold): Likewise.
1191         * tree.c (builtin_valid_in_constant_expr_p): Handle
1192         CP_BUILT_IN_IS_POINTER_INTERCONVERTIBLE_WITH_CLASS.  Call
1193         fndecl_built_in_p just once.
1194         * cxx-pretty-print.c (pp_cxx_trait_expression): Handle
1195         CPTK_IS_POINTER_INTERCONVERTIBLE_BASE_OF.
1197 2021-07-30  Jason Merrill  <jason@redhat.com>
1199         * class.c (finish_struct_anon): Improve comment.
1200         * decl.c (fixup_anonymous_aggr): Reject anonymous struct
1201         with bases.
1203 2021-07-30  Jakub Jelinek  <jakub@redhat.com>
1205         * parser.c (cp_parser_statement): Rollback attributes not just
1206         when std_attrs is non-NULL, but whenever
1207         cp_parser_std_attribute_spec_seq parsed any tokens.
1209 2021-07-30  Jakub Jelinek  <jakub@redhat.com>
1211         PR c++/101582
1212         * parser.c (cp_parser_skip_std_attribute_spec_seq): Add a forward
1213         declaration.
1214         (cp_parser_declaration): Parse empty-declaration and
1215         attribute-declaration.
1216         (cp_parser_toplevel_declaration): Don't parse empty-declaration here.
1218 2021-07-28  Martin Sebor  <msebor@redhat.com>
1220         * init.c: Include new header.
1222 2021-07-27  Marek Polacek  <polacek@redhat.com>
1224         DR 1512
1225         PR c++/99701
1226         * cp-gimplify.c (cp_fold): Remove {LE,LT,GE,GT_EXPR} from
1227         a switch.
1228         * typeck.c (cp_build_binary_op): Reject ordered comparison
1229         of two null pointers.
1231 2021-07-26  Jakub Jelinek  <jakub@redhat.com>
1233         * parser.h (struct cp_lexer): Add orphan_p member.
1234         * parser.c (cp_parser_statement): Don't change in_omp_attribute_pragma
1235         upon restart from CPP_PRAGMA handling.  Fix up condition when a lexer
1236         should be destroyed and adjust saved_tokens if it records tokens from
1237         the to be destroyed lexer.
1238         (cp_parser_omp_section_scan): New function.
1239         (cp_parser_omp_scan_loop_body): Use it.  If
1240         parser->lexer->in_omp_attribute_pragma, allow optional comma
1241         after scan.
1242         (cp_parser_omp_sections_scope): Use cp_parser_omp_section_scan.
1244 2021-07-23  Jakub Jelinek  <jakub@redhat.com>
1246         * parser.h (struct cp_parser): Add omp_attrs_forbidden_p member.
1247         * parser.c (cp_parser_handle_statement_omp_attributes): Diagnose
1248         mixing of attribute and pragma syntax directives when seeing
1249         omp::directive if parser->omp_attrs_forbidden_p or if attribute syntax
1250         directives are followed by OpenMP pragma.
1251         (cp_parser_statement): Clear parser->omp_attrs_forbidden_p after
1252         the cp_parser_handle_statement_omp_attributes call.
1253         (cp_parser_omp_structured_block): Add disallow_omp_attrs argument,
1254         if true, set parser->omp_attrs_forbidden_p.
1255         (cp_parser_omp_scan_loop_body, cp_parser_omp_sections_scope): Pass
1256         false as disallow_omp_attrs to cp_parser_omp_structured_block.
1257         (cp_parser_omp_parallel, cp_parser_omp_task): Set
1258         parser->omp_attrs_forbidden_p.
1260 2021-07-21  Thomas Schwinge  <thomas@codesourcery.com>
1261             Joseph Myers  <joseph@codesourcery.com>
1262             Cesar Philippidis  <cesar@codesourcery.com>
1264         * parser.c (cp_parser_omp_clause_name): Handle 'nohost'.
1265         (cp_parser_oacc_all_clauses): Handle 'PRAGMA_OACC_CLAUSE_NOHOST'.
1266         (OACC_ROUTINE_CLAUSE_MASK): Add 'PRAGMA_OACC_CLAUSE_NOHOST'.
1267         * pt.c (tsubst_omp_clauses): Handle 'OMP_CLAUSE_NOHOST'.
1268         * semantics.c (finish_omp_clauses): Likewise.
1270 2021-07-21  Jakub Jelinek  <jakub@redhat.com>
1272         PR c++/101516
1273         * semantics.c (finish_omp_reduction_clause): Also call
1274         complete_type_or_else and return true if it fails.
1276 2021-07-19  Iain Sandoe  <iain@sandoe.co.uk>
1278         PR c++/95520
1279         * coroutines.cc (struct coroutine_info): Add fields for
1280         actor and destroy function decls.
1281         (to_ramp): New.
1282         (coro_get_ramp_function): New.
1283         (coro_get_actor_function): New.
1284         (coro_get_destroy_function): New.
1285         (act_des_fn): Set up mapping between ramp, actor and
1286         destroy functions.
1287         (morph_fn_to_coro): Adjust interface to the builder for
1288         helper function decls.
1289         * cp-tree.h (DECL_ACTOR_FN, DECL_DESTROY_FN, DECL_RAMP_FN,
1290         JOIN_STR): New.
1291         * mangle.c (write_encoding): Handle coroutine helpers.
1292         (write_unqualified_name): Handle lambda coroutine helpers.
1294 2021-07-16  Patrick Palka  <ppalka@redhat.com>
1296         PR c++/101233
1297         * pt.c (alias_ctad_tweaks): Clear cp_unevaluated_operand for
1298         substituting DECL_ARGUMENTS.
1300 2021-07-16  Patrick Palka  <ppalka@redhat.com>
1302         DR 960
1303         PR c++/99664
1304         * search.c (check_final_overrider): Compare TYPE_REF_IS_RVALUE
1305         when the return types are references.
1307 2021-07-16  Marek Polacek  <polacek@redhat.com>
1309         * typeck2.c (check_narrowing): Don't suppress the pedantic error
1310         in system headers.
1312 2021-07-15  Jakub Jelinek  <jakub@redhat.com>
1314         PR c++/101443
1315         * cp-gimplify.c (cp_fold): For comparisons with NULLPTR_TYPE
1316         operands, fold them right away to true or false.
1318 2021-07-15  Jason Merrill  <jason@redhat.com>
1320         PR c++/101095
1321         * cp-objcp-common.c (cp_common_init_ts): Mark types as types.
1322         (cp_tree_size): Remove redundant entries.
1324 2021-07-14  Patrick Palka  <ppalka@redhat.com>
1326         PR c++/88252
1327         * cp-tree.h (TEMPLATE_TYPE_PARM_FOR_CLASS): Remove.
1328         * pt.c (push_template_decl): Remove TEMPLATE_TYPE_PARM_FOR_CLASS
1329         handling.
1330         (redeclare_class_template): Likewise.
1331         (forwarding_reference_p): Define.
1332         (maybe_adjust_types_for_deduction): Use it instead.  Add 'tparms'
1333         parameter.
1334         (unify_one_argument): Pass tparms to
1335         maybe_adjust_types_for_deduction.
1336         (try_one_overload): Likewise.
1337         (unify): Likewise.
1338         (rewrite_template_parm): Remove TEMPLATE_TYPE_PARM_FOR_CLASS
1339         handling.
1341 2021-07-14  Jason Merrill  <jason@redhat.com>
1343         * class.c (struct find_final_overrider_data): Use auto_vec.
1344         (find_final_overrider): Remove explicit release.
1345         * coroutines.cc (process_conditional): Use auto_vec.
1346         * cp-gimplify.c (struct cp_genericize_data): Use auto_vec.
1347         (cp_genericize_tree): Remove explicit release.
1348         * parser.c (cp_parser_objc_at_property_declaration): Use
1349         auto_delete_vec.
1350         * semantics.c (omp_reduction_lookup): Use auto_vec.
1352 2021-07-14  Marek Polacek  <polacek@redhat.com>
1354         PR c++/101371
1355         * constexpr.c (cxx_eval_array_reference): Create a new .object
1356         and .ctor for the non-aggregate non-scalar case too when
1357         value-initializing.
1359 2021-07-12  Patrick Palka  <ppalka@redhat.com>
1361         PR c++/79501
1362         PR c++/100983
1363         * decl.c (grokfndecl): Don't require that deduction guides are
1364         declared at namespace scope.  Check that class-scope deduction
1365         guides have the same access as the member class template.
1366         (grokdeclarator): Pretend class-scope deduction guides are static.
1367         * search.c (lookup_member): Don't use a BASELINK for (class-scope)
1368         deduction guides.
1370 2021-07-10  Patrick Palka  <ppalka@redhat.com>
1372         PR c++/82110
1373         * init.c (build_aggr_init): Return error_mark_node if
1374         expand_aggr_init_1 returns false.
1375         (expand_default_init): Change return type to bool.  Return false
1376         on error, true on success.
1377         (expand_aggr_init_1): Likewise.
1379 2021-07-09  Jason Merrill  <jason@redhat.com>
1381         PR c++/101098
1382         * decl.c (function_requirements_equivalent_p): Only compare
1383         trailing requirements on a specialization.
1385 2021-07-09  Iain Sandoe  <iain@sandoe.co.uk>
1387         * coroutines.cc (build_actor_fn): Move common code to
1388         act_des_fn.
1389         (build_destroy_fn): Likewise.
1390         (act_des_fn): Build the void return here.  Ensure that the
1391         source location matches the original function.
1393 2021-07-09  Iain Sandoe  <iain@sandoe.co.uk>
1395         * coroutines.cc
1396         (coro_rewrite_function_body): Connect the replacement
1397         function block to the block nest correctly.
1399 2021-07-09  Patrick Palka  <ppalka@redhat.com>
1401         PR c++/101181
1402         * constraint.cc (tsubst_requires_expr): Pass complain/in_decl to
1403         add_extra_args.
1404         * cp-tree.h (add_extra_args): Add complain/in_decl parameters.
1405         * pt.c (build_extra_args): Make a copy of args.
1406         (add_extra_args): Add complain/in_decl parameters.  Enable the
1407         code for handling the case where the extra arguments are
1408         dependent.
1409         (tsubst_pack_expansion): Pass complain/in_decl to
1410         add_extra_args.
1411         (tsubst_template_args): Handle missing template arguments.
1412         (tsubst_expr) <case IF_STMT>: Pass complain/in_decl to
1413         add_extra_args.
1415 2021-07-09  Patrick Palka  <ppalka@redhat.com>
1417         PR c++/101247
1418         * pt.c (any_template_parm_r) <case TEMPLATE_DECL>: Just walk the
1419         DECL_CONTEXT.
1421 2021-07-08  Martin Sebor  <msebor@redhat.com>
1423         PR bootstrap/101372
1424         * module.cc (identifier): Suppress warning.
1425         (module_state::read_macro_maps): Remove warning suppression.
1426         (module_state::install_macros): Ditto.
1428 2021-07-08  Marek Polacek  <polacek@redhat.com>
1430         PR c++/101087
1431         * cp-tree.h (unevaluated_p): New.
1432         * except.c (check_noexcept_r): Use it.  Don't walk into
1433         unevaluated operands.
1435 2021-07-08  Martin Sebor  <msebor@redhat.com>
1437         PR bootstrap/101374
1438         * module.cc (module_state::read_macro_maps): Temporarily disable
1439         -Warray-bounds.
1440         (module_state::install_macros): Same.
1442 2021-07-06  Martin Sebor  <msebor@redhat.com>
1444         * error.c (cp_printer):  Remove support for %G and %K.
1446 2021-07-02  Jakub Jelinek  <jakub@redhat.com>
1448         * parser.h (struct cp_lexer): Add in_omp_attribute_pragma member.
1449         (struct cp_omp_declare_simd_data): Likewise.
1450         * cp-tree.h (enum cp_tree_index): Add CPTI_OMP_IDENTIFIER.
1451         (omp_identifier): Define.
1452         * parser.c (cp_parser_skip_to_pragma_eol): Handle
1453         in_omp_attribute_pragma CPP_PRAGMA_EOL followed by CPP_EOF.
1454         (cp_parser_require_pragma_eol): Likewise.
1455         (struct cp_omp_attribute_data): New type.
1456         (cp_parser_handle_statement_omp_attributes): New function.
1457         (cp_parser_statement): Handle OpenMP directives in statement's
1458         attribute-specifier-seq.
1459         (cp_parser_omp_directive_args, cp_parser_omp_sequence_args): New
1460         functions.
1461         (cp_parser_std_attribute): Handle omp::directive and omp::sequence
1462         attributes.
1463         (cp_parser_omp_all_clauses): If in_omp_attribute_pragma, allow
1464         a comma also before the first clause.
1465         (cp_parser_omp_allocate): Likewise.
1466         (cp_parser_omp_atomic): Likewise.
1467         (cp_parser_omp_depobj): Likewise.
1468         (cp_parser_omp_flush): Likewise.
1469         (cp_parser_omp_ordered): Likewise.
1470         (cp_parser_omp_declare_simd): Save in_omp_attribute_pragma
1471         into struct cp_omp_declare_simd_data.
1472         (cp_finish_omp_declare_variant): Add in_omp_attribute_pragma
1473         argument.  If set, allow a comma also before match clause.
1474         (cp_parser_late_parsing_omp_declare_simd): If in_omp_attribute_pragma,
1475         allow a comma also before the first clause.  Adjust
1476         cp_finish_omp_declare_variant caller.
1477         (cp_parser_omp_declare_target): If in_omp_attribute_pragma, allow
1478         a comma also before the first clause.
1479         (cp_parser_omp_declare_reduction_exprs): Likewise.
1480         (cp_parser_omp_requires): Likewise.
1481         * decl.c (initialize_predefined_identifiers): Initialize
1482         omp_identifier.
1483         * decl2.c (cplus_decl_attributes): Reject omp::directive and
1484         omp::sequence attributes.
1486 2021-07-02  Jakub Jelinek  <jakub@redhat.com>
1488         PR c/101297
1489         * parser.c (cp_parser_omp_atomic): Consume comma only if it
1490         appears before a CPP_NAME.
1492 2021-07-02  Patrick Palka  <ppalka@redhat.com>
1494         PR c++/101247
1495         * pt.c (any_template_parm_r) <case TEMPLATE_DECL>: Rewrite to
1496         use common_enclosing_class and to not depend on the TREE_TYPE
1497         of outer levels pointing to the corresponding primary template.
1499 2021-07-01  Patrick Palka  <ppalka@redhat.com>
1501         PR c++/101194
1502         * constexpr.c (cxx_eval_array_reference): When the element type
1503         is an empty type and the corresponding element is omitted, just
1504         return an empty CONSTRUCTOR instead of attempting value
1505         initialization.
1507 2021-07-01  Patrick Palka  <ppalka@redhat.com>
1509         PR c++/96204
1510         * pt.c (finish_template_variable): Pass the partially
1511         instantiated template and its args to instantiate_template.
1512         (instantiate_class_template_1): No need to call
1513         push_nested_class and pop_nested_class around the call to
1514         most_specialized_partial_spec.
1515         (instantiate_template_1): Pass the partially instantiated
1516         template to lookup_template_variable.
1517         (most_specialized_partial_spec):  Use push_access_scope_guard
1518         to set the access scope appropriately.  Use
1519         deferring_access_check_sentinel to force access to get checked
1520         immediately.
1521         (instantiate_decl): Just pass the VAR_DECL to
1522         most_specialized_partial_spec.
1524 2021-06-30  Patrick Palka  <ppalka@redhat.com>
1526         * constraint.cc (get_normalized_constraints_from_decl): Use
1527         push_access_scope_guard instead of push_nested_class_guard.
1528         * cp-tree.h (struct push_nested_class_guard): Replace with ...
1529         (struct push_access_scope_guard): ... this.
1530         * pt.c (push_access_scope): When the argument corresponds to
1531         a class type, push the class instead of its context.
1532         (pop_access_scope): Adjust accordingly.
1534 2021-06-30  Marek Polacek  <polacek@redhat.com>
1536         PR c++/100975
1537         DR 2397
1538         * decl.c (create_array_type_for_decl): Allow array of auto.
1540 2021-06-29  Jason Merrill  <jason@redhat.com>
1542         * pt.c (instantiate_decl): Only consider partial specializations of
1543         actual variable templates.
1545 2021-06-26  Patrick Palka  <ppalka@redhat.com>
1547         PR c++/96204
1548         * pt.c (instantiate_class_template_1): Enter the scope of the
1549         type when calling most_specialized_partial_spec.
1551 2021-06-26  Jason Merrill  <jason@redhat.com>
1553         PR c++/101040
1554         PR c++/97566
1555         * class.c (is_empty_field): Handle null argument.
1556         * constexpr.c (cxx_eval_bare_aggregate): Discard initializer
1557         for empty field.
1559 2021-06-26  Marek Polacek  <polacek@redhat.com>
1561         PR c++/100752
1562         * parser.c (cp_parser_declarator): Pass flags down to
1563         cp_parser_declarator.  Also pass static_p/member_p.
1565 2021-06-25  Martin Sebor  <msebor@redhat.com>
1567         * call.c (build_over_call): Replace direct uses of TREE_NO_WARNING
1568         with warning_suppressed_p, suppress_warning, and copy_no_warning, or
1569         nothing if not necessary.
1570         (set_up_extended_ref_temp): Same.
1571         * class.c (layout_class_type): Same.
1572         * constraint.cc (constraint_satisfaction_value): Same.
1573         * coroutines.cc (finish_co_await_expr): Same.
1574         (finish_co_yield_expr): Same.
1575         (finish_co_return_stmt): Same.
1576         (build_actor_fn): Same.
1577         (coro_rewrite_function_body): Same.
1578         (morph_fn_to_coro): Same.
1579         * cp-gimplify.c (genericize_eh_spec_block): Same.
1580         (gimplify_expr_stmt): Same.
1581         (cp_genericize_r): Same.
1582         (cp_fold): Same.
1583         * cp-ubsan.c (cp_ubsan_instrument_vptr): Same.
1584         * cvt.c (cp_fold_convert): Same.
1585         (convert_to_void): Same.
1586         * decl.c (wrapup_namespace_globals): Same.
1587         (grokdeclarator): Same.
1588         (finish_function): Same.
1589         (require_deduced_type): Same.
1590         * decl2.c (no_linkage_error): Same.
1591         (c_parse_final_cleanups): Same.
1592         * except.c (expand_end_catch_block): Same.
1593         * init.c (build_new_1): Same.
1594         (build_new): Same.
1595         (build_vec_delete_1): Same.
1596         (build_vec_init): Same.
1597         (build_delete): Same.
1598         * method.c (defaultable_fn_check): Same.
1599         * parser.c (cp_parser_fold_expression): Same.
1600         (cp_parser_primary_expression): Same.
1601         * pt.c (push_tinst_level_loc): Same.
1602         (tsubst_copy): Same.
1603         (tsubst_omp_udr): Same.
1604         (tsubst_copy_and_build): Same.
1605         * rtti.c (build_if_nonnull): Same.
1606         * semantics.c (maybe_convert_cond): Same.
1607         (finish_return_stmt): Same.
1608         (finish_parenthesized_expr): Same.
1609         (cp_check_omp_declare_reduction): Same.
1610         * tree.c (build_cplus_array_type): Same.
1611         * typeck.c (build_ptrmemfunc_access_expr): Same.
1612         (cp_build_indirect_ref_1): Same.
1613         (cp_build_function_call_vec): Same.
1614         (warn_for_null_address): Same.
1615         (cp_build_binary_op): Same.
1616         (unary_complex_lvalue): Same.
1617         (cp_build_modify_expr): Same.
1618         (build_x_modify_expr): Same.
1619         (convert_for_assignment): Same.
1621 2021-06-24  Patrick Palka  <ppalka@redhat.com>
1623         PR c++/98832
1624         * pt.c (maybe_aggr_guide): Handle alias templates appropriately.
1626 2021-06-24  Patrick Palka  <ppalka@redhat.com>
1628         PR c++/101182
1629         * constraint.cc (evaluate_requires_expr): Adjust function comment.
1630         * cp-gimplify.c (cp_genericize_r) <case REQUIRES_EXPR>: Move to ...
1631         (cp_fold) <case REQUIRES_EXPR>: ... here.
1633 2021-06-24  Jakub Jelinek  <jakub@redhat.com>
1635         * parser.c (cp_omp_split_clauses): Pass C_ORT_OMP_TARGET instead of
1636         C_ORT_OMP for clauses on target construct.
1637         (OMP_TARGET_CLAUSE_MASK): Add in_reduction clause.
1638         (cp_parser_omp_target): For non-combined target add
1639         map (always, tofrom:) clauses for OMP_CLAUSE_IN_REDUCTION.  Pass
1640         C_ORT_OMP_TARGET to finish_omp_clauses.
1641         * semantics.c (handle_omp_array_sections_1): Adjust ort handling
1642         for addition of C_ORT_OMP_TARGET and simplify, mapping clauses are
1643         never present on C_ORT_*DECLARE_SIMD.
1644         (handle_omp_array_sections): Likewise.
1645         (finish_omp_clauses): Likewise.  Handle OMP_CLAUSE_IN_REDUCTION
1646         on C_ORT_OMP_TARGET, set OMP_CLAUSE_MAP_IN_REDUCTION on
1647         corresponding map clauses.
1648         * pt.c (tsubst_expr): Pass C_ORT_OMP_TARGET instead of C_ORT_OMP for
1649         clauses on target construct.
1651 2021-06-23  Patrick Palka  <ppalka@redhat.com>
1653         PR c++/101174
1654         * pt.c (push_access_scope): For artificial deduction guides,
1655         set the access scope to that of the constructor.
1656         (pop_access_scope): Likewise.
1657         (build_deduction_guide): Don't set DECL_CONTEXT on the guide.
1659 2021-06-23  Patrick Palka  <ppalka@redhat.com>
1661         PR c++/86439
1662         * call.c (print_error_for_call_failure): Constify 'args' parameter.
1663         (perform_dguide_overload_resolution): Define.
1664         * cp-tree.h: (perform_dguide_overload_resolution): Declare.
1665         * pt.c (do_class_deduction): Use perform_dguide_overload_resolution
1666         instead of build_new_function_call.  Don't use tf_decltype or
1667         set cp_unevaluated_operand.  Remove unnecessary NULL_TREE tests.
1669 2021-06-21  Patrick Palka  <ppalka@redhat.com>
1671         PR c++/67302
1672         * typeck.c (check_return_expr): Call maybe_undo_parenthesized_ref
1673         sooner, before the NRVO handling.
1675 2021-06-21  Patrick Palka  <ppalka@redhat.com>
1677         PR c++/80431
1678         * tree.c (bot_replace): Use convert_to_base to build the
1679         conversion to the (morally) virtual base.
1681 2021-06-21  Jakub Jelinek  <jakub@redhat.com>
1683         PR inline-asm/100785
1684         * typeck.c (cxx_mark_addressable): Diagnose trying to make
1685         bit-fields addressable.
1687 2021-06-17  Jason Merrill  <jason@redhat.com>
1689         PR c++/101106
1690         * decl.c (duplicate_decls): Make 'deleted after first declaration'
1691         pedwarn on by default.
1693 2021-06-17  Jason Merrill  <jason@redhat.com>
1695         PR c++/101029
1696         * init.c (build_vec_init): Preserve the type of base.
1698 2021-06-16  Jason Merrill  <jason@redhat.com>
1700         PR c++/101078
1701         PR c++/91706
1702         * pt.c (tsubst_baselink): Update binfos in non-dependent case.
1704 2021-06-15  Robin Dapp  <rdapp@linux.ibm.com>
1706         * decl.c (duplicate_decls): Likewise.
1708 2021-06-14  Tobias Burnus  <tobias@codesourcery.com>
1710         PR c/100913
1711         * parser.c (cp_parser_omp_clause_affinity): No need to set iterator
1712         var in the error case.
1714 2021-06-13  Trevor Saunders  <tbsaunde@tbsaunde.org>
1716         * constexpr.c (cxx_eval_call_expression): Iterate over vec<>
1717         with range based for.
1718         (cxx_eval_store_expression): Likewise.
1719         (cxx_eval_loop_expr): Likewise.
1720         * decl.c (wrapup_namespace_globals): Likewise.
1721         (cp_finish_decl): Likewise.
1722         (cxx_simulate_enum_decl): Likewise.
1723         * parser.c (cp_parser_postfix_expression): Likewise.
1725 2021-06-12  Jason Merrill  <jason@redhat.com>
1727         PR c++/101029
1728         * init.c (build_vec_init): Shortcut [0] case.
1730 2021-06-12  Jason Merrill  <jason@redhat.com>
1732         * pt.c (lookup_template_class_1): Shortcut current_class_type.
1734 2021-06-11  Patrick Palka  <ppalka@redhat.com>
1736         DR 1227
1737         PR c++/96560
1738         * pt.c (tsubst_arg_types): Rearrange so that we substitute into
1739         TYPE_ARG_TYPES in forward order while short circuiting
1740         appropriately.  Adjust formatting.
1742 2021-06-11  Jakub Jelinek  <jakub@redhat.com>
1744         PR c++/100974
1745         * cp-tree.h (struct saved_scope): Add consteval_if_p
1746         member.  Formatting fix for the discarded_stmt comment.
1747         (in_consteval_if_p, IF_STMT_CONSTEVAL_P): Define.
1748         * parser.c (cp_parser_lambda_expression): Temporarily disable
1749         in_consteval_if_p when parsing lambda body.
1750         (cp_parser_selection_statement): Parse consteval if.
1751         * decl.c (struct named_label_entry): Add in_consteval_if member.
1752         (level_for_consteval_if): New function.
1753         (poplevel_named_label_1, check_previous_goto_1, check_goto): Handle
1754         consteval if.
1755         * constexpr.c (cxx_eval_builtin_function_call): Clarify in comment
1756         why CP_BUILT_IN_IS_CONSTANT_EVALUATED needs to *non_constant_p
1757         for !ctx->manifestly_const_eval.
1758         (cxx_eval_conditional_expression): For IF_STMT_CONSTEVAL_P evaluate
1759         condition as if it was __builtin_is_constant_evaluated call.
1760         (potential_constant_expression_1): For IF_STMT_CONSTEVAL_P always
1761         recurse on both branches.
1762         * cp-gimplify.c (genericize_if_stmt): Genericize IF_STMT_CONSTEVAL_P
1763         as the else branch.
1764         * pt.c (tsubst_expr) <case IF_STMT>: Copy IF_STMT_CONSTEVAL_P.
1765         Temporarily set in_consteval_if_p when recursing on
1766         IF_STMT_CONSTEVAL_P then branch.
1767         (tsubst_lambda_expr): Temporarily disable
1768         in_consteval_if_p when instantiating lambda body.
1769         * call.c (immediate_invocation_p): Return false when
1770         in_consteval_if_p.
1772 2021-06-11  Marek Polacek  <polacek@redhat.com>
1774         PR c++/100995
1775         * constexpr.c (maybe_constexpr_fn): New.
1776         * cp-tree.h (maybe_constexpr_fn): Declare.
1777         * semantics.c (find_std_constant_evaluated_r): New.
1778         (maybe_warn_for_constant_evaluated): New.
1779         (finish_if_stmt_cond): Call it.
1781 2021-06-10  Patrick Palka  <ppalka@redhat.com>
1783         PR c++/67829
1784         * pt.c (unify) <case BOUND_TEMPLATE_TEMPLATE_PARM>: When
1785         the TEMPLATE_DECL of a BOUND_TEMPLATE_TEMPLATE_PARM argument is
1786         a template template parameter, adjust to the
1787         TEMPLATE_TEMPLATE_PARAMETER before falling through.
1789 2021-06-10  Patrick Palka  <ppalka@redhat.com>
1791         PR c++/100946
1792         * constraint.cc (normalize_placeholder_type_constraints): When
1793         normalizing a non-templated return-type-requirement, add a dummy
1794         level to initial_parms.
1796 2021-06-08  Marek Polacek  <polacek@redhat.com>
1798         PR c++/100065
1799         * decl.c (grokdeclarator): Store a value-dependent
1800         explicit-specifier even for deduction guides.
1802 2021-06-08  Jason Merrill  <jason@redhat.com>
1804         * parser.c (cp_parser_string_literal): Adjust diagnostic.
1806 2021-06-08  Jason Merrill  <jason@redhat.com>
1808         PR c++/100963
1809         * call.c (perfect_conversion_p): Check check_narrowing.
1811 2021-06-08  Jason Merrill  <jason@redhat.com>
1813         PR c++/91706
1814         * name-lookup.c (get_class_binding): Keep a BASELINK.
1815         (set_inherited_value_binding_p): Adjust.
1816         * lambda.c (is_lambda_ignored_entity): Adjust.
1817         * pt.c (lookup_template_function): Copy a BASELINK before
1818         modifying it.
1820 2021-06-08  Jason Merrill  <jason@redhat.com>
1822         PR c++/91706
1823         * semantics.c (baselink_for_fns): Fix BASELINK_BINFO.
1825 2021-06-08  Jason Merrill  <jason@redhat.com>
1827         * module.cc (duplicate_hash::hash): Comment out.
1828         (trees_in::tree_value): Adjust loop counter.
1830 2021-06-08  Jason Merrill  <jason@redhat.com>
1832         PR c++/100102
1833         * init.c (build_offset_ref): Return the BASELINK for a static
1834         member function.
1836 2021-06-07  Patrick Palka  <ppalka@redhat.com>
1838         PR c++/100918
1839         * parser.c (cp_parser_lookup_name): Check access of the lookup
1840         result before we potentially adjust an injected-class-name to
1841         its TEMPLATE_DECL.
1843 2021-06-06  Jakub Jelinek  <jakub@redhat.com>
1845         PR c/100902
1846         * parser.c (cp_parser_omp_target): Call c_omp_adjust_map_clauses
1847         even when target is combined with other constructs.
1849 2021-06-04  Patrick Palka  <ppalka@redhat.com>
1851         PR c++/100893
1852         * pt.c (convert_template_argument): Strip top-level cv-quals
1853         on the substituted type of a non-type template parameter.
1855 2021-06-04  Patrick Palka  <ppalka@redhat.com>
1857         PR c++/100102
1858         * pt.c (tsubst_function_decl): Remove old code for reducing
1859         args when it has excess levels.
1861 2021-06-04  Jakub Jelinek  <jakub@redhat.com>
1863         PR c++/100872
1864         * name-lookup.c (maybe_save_operator_binding): Add op_attr after all
1865         ATTR_IS_DEPENDENT attributes in the DECL_ATTRIBUTES list rather than
1866         to the start.
1868 2021-06-03  Patrick Palka  <ppalka@redhat.com>
1870         PR c++/100592
1871         * decl.c (make_typename_type): After calling
1872         lookup_template_class, adjust the result to its TYPE_NAME and
1873         then consider the tf_keep_type_decl flag.
1875 2021-06-03  Patrick Palka  <ppalka@redhat.com>
1877         PR c++/100862
1878         * pt.c (set_current_access_from_decl): Move to ...
1879         * class.c (set_current_access_from_decl): ... here.
1880         (handle_using_decl): Use it to propagate the access of the
1881         using-enum decl to the copy of the imported enumerator.
1882         * cp-tree.h (set_current_access_from_decl): Declare.
1883         * decl.c (build_enumerator): Simplify using make_temp_override
1884         and set_current_access_from_decl.
1886 2021-06-03  Jakub Jelinek  <jakub@redhat.com>
1888         PR c++/100859
1889         * semantics.c (handle_omp_array_sections_1): For
1890         OMP_CLAUSE_{AFFINITY,DEPEND} handle FIELD_DECL base using
1891         finish_non_static_data_member and allow this as base.
1892         (finish_omp_clauses): Move OMP_CLAUSE_AFFINITY
1893         after depend only cases.  Let this be diagnosed by !lvalue_p
1894         case for OMP_CLAUSE_{AFFINITY,DEPEND} and remove useless
1895         assert.
1896         * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_AFFINITY.
1898 2021-06-02  Jason Merrill  <jason@redhat.com>
1900         PR c++/100838
1901         * call.c (convert_like_internal): Clear tf_no_cleanup when
1902         recursing.
1903         (build_user_type_conversion_1): Only add ck_rvalue if
1904         LOOKUP_ONLYCONVERTING.
1906 2021-06-01  Patrick Palka  <ppalka@redhat.com>
1908         PR c++/65816
1909         * init.c (expand_aggr_init_1): Check
1910         type_has_non_user_provided_default_constructor instead of
1911         type_has_user_provided_constructor.
1913 2021-06-01  Jason Merrill  <jason@redhat.com>
1915         PR c++/91859
1916         * call.c (build_op_delete_call): Don't set CALL_FROM_NEW_OR_DELETE_P
1917         for destroying delete.
1918         * init.c (build_delete): Don't clobber before destroying delete.
1920 2021-06-01  Jason Merrill  <jason@redhat.com>
1922         PR c++/94492
1923         * decl2.c (cp_warn_deprecated_use): Check warning_enabled_at.
1925 2021-05-31  Richard Biener  <rguenther@suse.de>
1927         PR c++/88601
1928         * cp-objcp-common.c (names_builtin_p): Handle
1929         RID_BUILTIN_SHUFFLEVECTOR.
1930         * cp-tree.h (build_x_shufflevector): Declare.
1931         * parser.c (cp_parser_postfix_expression): Handle
1932         RID_BUILTIN_SHUFFLEVECTOR.
1933         * pt.c (tsubst_copy_and_build): Handle IFN_SHUFFLEVECTOR.
1934         * typeck.c (build_x_shufflevector): Build either a lowered
1935         VEC_PERM_EXPR or an unlowered shufflevector via a temporary
1936         internal function IFN_SHUFFLEVECTOR.
1938 2021-05-28  Jason Merrill  <jason@redhat.com>
1940         * constexpr.c (build_data_member_initialization): Use tsi_range.
1941         (build_constexpr_constructor_member_initializers): Likewise.
1942         (constexpr_fn_retval, cxx_eval_statement_list): Likewise.
1943         (potential_constant_expression_1): Likewise.
1944         * coroutines.cc (await_statement_expander): Likewise.
1945         (await_statement_walker): Likewise.
1946         * module.cc (trees_out::core_vals): Likewise.
1947         * pt.c (tsubst_expr): Likewise.
1948         * semantics.c (set_cleanup_locs): Likewise.
1950 2021-05-28  Jason Merrill  <jason@redhat.com>
1952         PR c++/100797
1953         PR c++/95719
1954         * call.c (build_over_call): Adjust base_binfo in
1955         resolves_to_fixed_type_p case.
1957 2021-05-28  Jakub Jelinek  <jakub@redhat.com>
1959         PR middle-end/99928
1960         * semantics.c (handle_omp_array_sections): Copy
1961         OMP_CLAUSE_MAP_IMPLICIT.
1962         (finish_omp_clauses): Move not just OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT
1963         marked clauses last, but also OMP_CLAUSE_MAP_IMPLICIT.  Add
1964         map_firstprivate_head bitmap, set it for GOMP_MAP_FIRSTPRIVATE_POINTER
1965         maps and silently remove OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT if it is
1966         present too.  For OMP_CLAUSE_MAP_IMPLICIT silently remove the clause
1967         if present in map_head, map_field_head or map_firstprivate_head
1968         bitmaps.
1970 2021-05-28  Tobias Burnus  <tobias@codesourcery.com>
1972         * parser.c (cp_parser_omp_clause_affinity): New.
1973         (cp_parser_omp_clause_name, cp_parser_omp_var_list_no_open,
1974         cp_parser_omp_all_clauses, OMP_TASK_CLAUSE_MASK): Handle affinity
1975         clause.
1976         * semantics.c (handle_omp_array_sections_1, handle_omp_array_sections,
1977         finish_omp_clauses): Likewise.
1979 2021-05-27  Matthias Kretz  <kretz@kde.org>
1981         PR c++/100716
1982         * error.c (dump_template_bindings): Include code to print
1983         "[with" and ']', conditional on whether anything is printed at
1984         all. This is tied to whether a semicolon is needed to separate
1985         multiple template parameters. If the template argument repeats
1986         the template parameter (T = T), then skip the parameter.
1987         (dump_substitution): Moved code to print "[with" and ']' to
1988         dump_template_bindings.
1989         (dump_function_decl): Partial revert of PR50828, which masked
1990         TFF_TEMPLATE_NAME for all of dump_function_decl. Now
1991         TFF_TEMPLATE_NAME is masked for the scope of the function and
1992         only carries through to dump_function_name.
1993         (dump_function_name): Avoid calling dump_template_parms if
1994         TFF_TEMPLATE_NAME is set.
1996 2021-05-27  Matthias Kretz  <kretz@kde.org>
1998         PR c++/100763
1999         * error.c: Call dump_scope when printing a typedef.
2001 2021-05-27  Patrick Palka  <ppalka@redhat.com>
2003         PR c++/99893
2004         * tree.c (cp_walk_subtrees) <case STATIC_ASSERT>: New case.
2006 2021-05-27  Jason Merrill  <jason@redhat.com>
2008         PR c++/86355
2009         * pt.c (use_pack_expansion_extra_args_p): Don't compare
2010         args from the same argument pack.
2012 2021-05-27  Patrick Palka  <ppalka@redhat.com>
2014         DR 1315
2015         PR c++/67593
2016         PR c++/96555
2017         * pt.c (process_partial_specialization): Don't error on a
2018         non-simple non-type template argument that involves template
2019         parameters.
2020         (for_each_template_parm_r): Don't walk TRAIT_EXPR, PLUS_EXPR,
2021         MULT_EXPR, or SCOPE_REF when include_nondeduced_p is false.
2023 2021-05-26  Patrick Palka  <ppalka@redhat.com>
2025         PR c++/100502
2026         * typeck.c (finish_class_member_access_expr): Disable ahead
2027         of time access checking during the member lookup.
2029 2021-05-26  Patrick Palka  <ppalka@redhat.com>
2031         PR c++/100368
2032         * tree.c (build_target_expr_with_type): Don't call force_rvalue
2033         on CALL_EXPR initializer.  Simplify now that bot_manip is no
2034         longer a caller.
2035         (bot_manip): Use force_target_expr instead of
2036         build_target_expr_with_type.
2038 2021-05-26  Patrick Palka  <ppalka@redhat.com>
2040         PR c++/97420
2041         * cvt.c (noexcept_conv_p): Remove redundant checks and simplify.
2042         (fnptr_conv_p): Don't call non_reference.  Use INDIRECT_TYPE_P
2043         instead of TYPE_PTR_P.
2044         * pt.c (convert_nontype_argument_function): Look through
2045         implicit INDIRECT_REFs before calling strip_fnptr_conv.
2047 2021-05-25  Jakub Jelinek  <jakub@redhat.com>
2049         PR c++/100666
2050         * call.c (convert_arg_to_ellipsis): For expressions with NULLPTR_TYPE
2051         and side-effects, temporarily disable -Wunused-result warning when
2052         building COMPOUND_EXPR.
2054 2021-05-21  Jakub Jelinek  <jakub@redhat.com>
2056         PR middle-end/99928
2057         * semantics.c (finish_omp_clauses): Move firstprivate clauses with
2058         OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT to the end of the chain.  Don't error
2059         if a decl is mentioned both in map clause and in such firstprivate
2060         clause unless OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT_TARGET is also set.
2062 2021-05-20  Jason Merrill  <jason@redhat.com>
2064         * call.c (reference_binding): Check for designator.
2065         (implicit_conversion_1, build_special_member_call): Likewise.
2066         * decl.c (reshape_init_r): Likewise.
2067         * pt.c (do_class_deduction): Likewise.
2068         * typeck2.c (digest_init_r): Likewise.
2070 2021-05-20  Jason Merrill  <jason@redhat.com>
2072         PR c++/100489
2073         * decl.c (reshape_init_class): Handle designator for
2074         member of anonymous aggregate here.
2075         * typeck2.c (process_init_constructor_record): Not here.
2077 2021-05-20  Jonathan Wakely  <jwakely@redhat.com>
2079         * call.c (maybe_warn_array_conv): Use new warning option.
2080         * decl.c (mark_inline_variable, grokdeclarator): Likewise.
2081         * error.c (maybe_warn_cpp0x): Likewise.
2082         * parser.c (cp_parser_primary_expression)
2083         (cp_parser_unqualified_id)
2084         (cp_parser_pseudo_destructor_name)
2085         (cp_parser_lambda_introducer)
2086         (cp_parser_lambda_declarator_opt)
2087         (cp_parser_selection_statement)
2088         (cp_parser_init_statement)
2089         (cp_parser_decomposition_declaration)
2090         (cp_parser_function_specifier_opt)
2091         (cp_parser_static_assert)
2092         (cp_parser_namespace_definition)
2093         (cp_parser_using_declaration)
2094         (cp_parser_asm_definition)
2095         (cp_parser_ctor_initializer_opt_and_function_body)
2096         (cp_parser_initializer_list)
2097         (cp_parser_type_parameter_key)
2098         (cp_parser_member_declaration)
2099         (cp_parser_try_block)
2100         (cp_parser_std_attribute_spec): Likewise.
2101         * pt.c (check_template_variable): Likewise.
2103 2021-05-20  Jason Merrill  <jason@redhat.com>
2105         PR c++/100634
2106         * pt.c (invalid_nontype_parm_type_p): Return true for COMPLEX_TYPE.
2108 2021-05-20  Jason Merrill  <jason@redhat.com>
2110         PR c++/100659
2111         * cp-tree.h (CONST_DECL_USING_P): Check for null TREE_TYPE.
2113 2021-05-19  Jason Merrill  <jason@redhat.com>
2115         PR c++/100367
2116         PR c++/96299
2117         * method.c (genericize_spaceship): Use fold_build2 for scalar
2118         operands.
2120 2021-05-19  Jason Merrill  <jason@redhat.com>
2122         * pt.c (build_deduction_guide): Treat the implicit deduction guide
2123         as a member of the class.
2125 2021-05-19  Marek Polacek  <polacek@redhat.com>
2127         PR c++/100596
2128         * cp-tree.h (any_non_type_attribute_p): Remove.
2129         * decl.c (grokdeclarator): Turn an error into a warning and only
2130         warn for standard attributes.
2131         * decl2.c (any_non_type_attribute_p): Remove.
2132         * parser.c (cp_parser_elaborated_type_specifier): Turn an error
2133         into a warning and only warn for standard attributes.
2134         (cp_parser_member_declaration): Likewise.
2136 2021-05-19  Martin Liska  <mliska@suse.cz>
2138         PR testsuite/100658
2139         * mangle.c (write_encoding): Fix typos.
2141 2021-05-19  Jakub Jelinek  <jakub@redhat.com>
2143         PR middle-end/99928
2144         * parser.c (cp_parser_omp_master): Set OMP_MASTER_COMBINED on
2145         master when combined with taskloop.
2146         (cp_parser_omp_parallel): Don't set OMP_PARALLEL_COMBINED on
2147         parallel master when not combined with taskloop.
2149 2021-05-19  Jason Merrill  <jason@redhat.com>
2151         PR c++/100261
2152         * rtti.c (get_tinfo_decl_direct): Check TYPE_TRANSPARENT_AGGR.
2154 2021-05-19  Jason Merrill  <jason@redhat.com>
2156         PR c++/100372
2157         * tree.c (strip_typedefs): Only look at the pattern of a
2158         TYPE_PACK_EXPANSION if it's a type.
2160 2021-05-18  Marek Polacek  <polacek@redhat.com>
2162         * class.c (classtype_has_non_deleted_copy_ctor): Remove.
2163         * constraint.cc (contains_wildcard_p): Likewise.
2164         (get_template_head_requirements): Likewise.
2165         (check_constrained_friend): Likewise.
2166         (subsumes_constraints): Likewise.
2167         * cp-tree.h (classtype_has_non_deleted_copy_ctor): Likewise.
2168         (push_void_library_fn): Likewise.
2169         (get_pattern_parm): Likewise.
2170         (get_template_parms_at_level): Likewise.
2171         (lambda_return_type): Likewise.
2172         (get_template_head_requirements): Likewise.
2173         (check_constrained_friend): Likewise.
2174         (subsumes_constraints): Likewise.
2175         * decl.c (push_void_library_fn): Likewise.
2176         * lambda.c (lambda_return_type): Likewise.
2177         * pt.c (get_template_parms_at_level): Likewise.
2178         (get_pattern_parm): Likewise.
2180 2021-05-18  Jason Merrill  <jason@redhat.com>
2182         PR c++/100644
2183         * call.c (perfect_candidate_p): An implicitly deleted move
2184         is not perfect.
2186 2021-05-18  Andreas Krebbel  <krebbel@linux.ibm.com>
2188         PR c++/100281
2189         * cvt.c (cp_convert_to_pointer): Use the size of the target
2190         pointer type.
2191         * tree.c (cp_build_reference_type): Call
2192         cp_build_reference_type_for_mode with VOIDmode.
2193         (cp_build_reference_type_for_mode): Rename from
2194         cp_build_reference_type.  Add MODE argument and invoke
2195         build_reference_type_for_mode.
2196         (strip_typedefs): Use build_pointer_type_for_mode and
2197         cp_build_reference_type_for_mode for pointers and references.
2199 2021-05-17  Jonathan Wakely  <jwakely@redhat.com>
2201         PR c++/100635
2202         * call.c (convert_like_internal): Print different diagnostic if
2203         the lvalue reference is const.
2205 2021-05-14  Jason Merrill  <jason@redhat.com>
2207         PR c++/95870
2208         * pt.c (enclosing_instantiation_of): Just compare
2209         DECL_SOURCE_LOCATION.
2210         (regenerate_decl_from_template): Copy DECL_SOURCE_LOCATION.
2212 2021-05-14  Marek Polacek  <polacek@redhat.com>
2213             Jason Merrill  <jason@redhat.com>
2215         PR c++/99032
2216         * cp-tree.h (any_non_type_attribute_p): Declare.
2217         * decl.c (grokdeclarator): Diagnose when an attribute appertains to
2218         a friend declaration that is not a definition.
2219         * decl2.c (any_non_type_attribute_p): New.
2220         * parser.c (cp_parser_decl_specifier_seq): Diagnose standard attributes
2221         in the middle of decl-specifiers.
2222         (cp_parser_elaborated_type_specifier): Diagnose when an attribute
2223         appertains to a friend declaration that is not a definition.
2224         (cp_parser_member_declaration): Likewise.
2226 2021-05-12  Marek Polacek  <polacek@redhat.com>
2228         * pt.c (tsubst_copy_and_build): Add warn_int_in_bool_context
2229         sentinel.
2231 2021-05-12  Marcel Vollweiler  <marcel@codesourcery.com>
2233         * parser.c (cp_parser_omp_clause_map): Support map-type-modifier
2234         'close'.
2236 2021-05-11  Jason Merrill  <jason@redhat.com>
2238         PR c++/100517
2239         * typeck.c (build_reinterpret_cast_1): Check intype on
2240         cast to vector.
2242 2021-05-11  Patrick Palka  <ppalka@redhat.com>
2244         PR c++/51577
2245         * name-lookup.c (maybe_save_operator_binding): Unconditionally
2246         enable for all function templates, not just generic lambdas.
2247         Handle compound-assignment operator expressions.
2248         * typeck.c (build_x_compound_expr): Call maybe_save_operator_binding
2249         in the type-dependent case.
2250         (build_x_modify_expr): Likewise.  Move declaration of 'op' closer
2251         to its first use.
2253 2021-05-11  Patrick Palka  <ppalka@redhat.com>
2255         PR c++/100138
2256         * constraint.cc (tsubst_constraint): Set up cp_unevaluated.
2257         (satisfy_atom): Set up iloc_sentinel before calling
2258         cxx_constant_value.
2259         * pt.c (tsubst_pack_expansion): When returning a rebuilt pack
2260         expansion, carry over PACK_EXPANSION_LOCAL_P and
2261         PACK_EXPANSION_SIZEOF_P from the original pack expansion.
2263 2021-05-10  Richard Biener  <rguenther@suse.de>
2265         PR middle-end/100464
2266         PR c++/100468
2267         * call.c (set_up_extended_ref_temp): Mark the temporary
2268         addressable if the TARGET_EXPR was.
2270 2021-05-10  Martin Liska  <mliska@suse.cz>
2272         * decl.c (duplicate_decls): Use startswith
2273         function instead of strncmp.
2274         (cxx_builtin_function): Likewise.
2275         (omp_declare_variant_finalize_one): Likewise.
2276         (grokfndecl): Likewise.
2277         * error.c (dump_decl_name): Likewise.
2278         * mangle.c (find_decomp_unqualified_name): Likewise.
2279         (write_guarded_var_name): Likewise.
2280         (decl_tls_wrapper_p): Likewise.
2281         * parser.c (cp_parser_simple_type_specifier): Likewise.
2282         (cp_parser_tx_qualifier_opt): Likewise.
2283         * pt.c (template_parm_object_p): Likewise.
2284         (dguide_name_p): Likewise.
2286 2021-05-10  Martin Liska  <mliska@suse.cz>
2288         PR c++/99616
2289         * decl.c (grokdeclarator): Remove redundant NULL check.
2291 2021-05-07  Jason Merrill  <jason@redhat.com>
2293         * tree.c (rvalue): Assert expr is not a class lvalue.
2295 2021-05-07  Jason Merrill  <jason@redhat.com>
2297         * cp-tree.h (build_stub_object): Declare.
2298         * method.c (build_stub_object): No longer static.
2299         * call.c (can_convert): Use it.
2300         * tree.c (build_dummy_object): Adjust comment.
2301         * typeck.c (cp_build_binary_op): Wrap SPACESHIP_EXPR in a
2302         TARGET_EXPR.
2304 2021-05-07  Jason Merrill  <jason@redhat.com>
2306         * coroutines.cc (build_co_await): Don't call 'rvalue'.
2307         (flatten_await_stmt): Simplify initialization.
2308         (morph_fn_to_coro): Change 'rvalue' to 'move'.  Simplify.
2310 2021-05-04  Tobias Burnus  <tobias@codesourcery.com>
2312         * semantics.c (finish_omp_reduction_clause): Accept float + complex
2313         for || and && reductions.
2315 2021-05-03  Patrick Palka  <ppalka@redhat.com>
2317         PR c++/100362
2318         * parser.c (cp_parser_class_head): Reinstate calls to pushclass
2319         and popclass when parsing the base-clause that were removed in
2320         r11-6815.
2322 2021-05-03  Patrick Palka  <ppalka@redhat.com>
2324         PR c++/68942
2325         PR c++/100344
2326         * pt.c (tsubst_copy_and_build) <case CALL_EXPR>: Set tf_conv
2327         only when the callee is a FUNCTION_DECL.
2329 2021-05-03  Marek Polacek  <polacek@redhat.com>
2331         PR c++/100055
2332         * decl.c (grokfndecl): Check current_template_parms.
2334 2021-05-03  Marek Polacek  <polacek@redhat.com>
2336         DR 1312
2337         * constexpr.c (cxx_eval_constant_expression): Don't check
2338         integer_zerop.
2340 2021-05-01  Jason Merrill  <jason@redhat.com>
2342         * cp-tree.h (class ovl_iterator): Allow copying.  Add op==.
2343         (class ovl_range, class lkp_range): New.
2344         * call.c (build_op_call_1, add_candidates): Use them.
2345         (build_op_delete_call, has_trivial_copy_assign_p): Likewise.
2346         (has_trivial_copy_p): Likewise.
2347         * class.c (handle_using_decl, get_basefndecls): Likewise.
2348         (maybe_warn_about_overly_private_class): Likewise.
2349         (warn_hidden, add_implicitly_declared_members): Likewise.
2350         (check_methods, clone_constructors_and_destructors): Likewise.
2351         (type_has_user_nondefault_constructor): Likewise.
2353 2021-04-29  Jason Merrill  <jason@redhat.com>
2355         * constexpr.c (cxx_fold_indirect_ref_1): Only set *empty_base if we
2356         don't find a field.
2358 2021-04-29  Jason Merrill  <jason@redhat.com>
2360         PR c++/51344
2361         * decl2.c (grokfield): Call cplus_decl_attributes for friend.
2362         (save_template_attributes): Use chainon.
2363         * friend.c (do_friend): Remove attrlist parm.
2364         * cp-tree.h (do_friend): Adjust.
2365         * class.c (add_implicitly_declared_members): Adjust.
2366         * decl.c (grokdeclarator): Adjust.
2367         * pt.c (apply_late_template_attributes): Optimize.
2369 2021-04-29  Jason Merrill  <jason@redhat.com>
2371         PR c++/97974
2372         * class.c (finish_struct_anon_r): Drop complain parm.
2373         Remove non-field diagnostic.
2374         (finish_struct_anon): Adjust.
2375         * decl.c (fixup_anonymous_aggr): Move non-field diagnostic here.
2377 2021-04-29  Jason Merrill  <jason@redhat.com>
2379         * cp-tree.h (cp_evaluated): Add reset parm to constructor.
2380         * parser.c (cp_parser_constant_expression): Change
2381         allow_non_constant_p to int.  Use cp_evaluated.
2382         (cp_parser_initializer_clause): Pass 2 to allow_non_constant_p.
2383         * semantics.c (finish_id_expression_1): Don't mess with
2384         cp_unevaluated_operand here.
2386 2021-04-29  Jason Merrill  <jason@redhat.com>
2388         * cp-tree.h: Clarify comments.
2389         * pt.c (get_template_parm_object): Add assert.
2390         * semantics.c (finish_compound_literal): Clear TREE_HAS_CONSTRUCTOR.
2391         * tree.c (zero_init_expr_p): Check TREE_HAS_CONSTRUCTOR.
2392         * typeck2.c (store_init_value): Likewise.
2394 2021-04-29  Patrick Palka  <ppalka@redhat.com>
2396         PR c++/68942
2397         * pt.c (tsubst_copy_and_build) <case CALL_EXPR>: When KOENIG_P,
2398         set tf_conv during the initial substitution into the function.
2400 2021-04-29  Jakub Jelinek  <jakub@redhat.com>
2402         PR c++/100319
2403         * semantics.c (finish_omp_clauses): Fix up check that variable
2404         mentioned in detach clause doesn't appear in data-sharing clauses.
2406 2021-04-28  Jakub Jelinek  <jakub@redhat.com>
2408         * module.cc: Remove #error that triggers if DEV-PHASE is empty.
2410 2021-04-27  Jason Merrill  <jason@redhat.com>
2412         PR c++/92145
2413         * class.c (classtype_has_depr_implicit_copy): Check DECL_CONTEXT
2414         of operator=.
2416 2021-04-27  Patrick Palka  <ppalka@redhat.com>
2418         PR c++/88580
2419         * pt.c (tsubst_initializer_list): Correctly handle the case
2420         where an argument inside a base initializer pack expansion is
2421         itself a pack expansion.
2423 2021-04-26  Patrick Palka  <ppalka@redhat.com>
2425         PR c++/100209
2426         * constexpr.c (cxx_fold_indirect_ref): Try to canonicalize the
2427         object/offset pair for a POINTER_PLUS_EXPR of a COMPONENT_REF
2428         with a negative offset into one whose offset is nonnegative
2429         before calling cxx_fold_indirect_ref_1.
2431 2021-04-24  Patrick Palka  <ppalka@redhat.com>
2433         PR c++/89565
2434         PR c++/93383
2435         PR c++/95291
2436         PR c++/99200
2437         PR c++/99683
2438         * pt.c (do_class_deduction): Punt if the initializer is
2439         type-dependent.
2441 2021-04-24  Patrick Palka  <ppalka@redhat.com>
2443         PR c++/87709
2444         * parser.c (cp_parser_type_id_1): If we see a template
2445         placeholder, first try simulating an error before issuing
2446         a real error.
2448 2021-04-23  Patrick Palka  <ppalka@redhat.com>
2450         PR c++/98767
2451         * cxx-pretty-print.c (pp_cxx_parameter_declaration_clause):
2452         Adjust parameter list loop to iterate over 'types' instead of
2453         'args'.  Output the trailing '...' for a variadic function.
2454         Remove PARM_DECL support.
2455         (pp_cxx_requires_expr): Pretty print the parameter list directly
2456         instead of going through pp_cxx_parameter_declaration_clause.
2458 2021-04-23  Patrick Palka  <ppalka@redhat.com>
2460         DR 2374
2461         * decl.c (is_direct_enum_init): Check the implicit
2462         convertibility requirement added by CWG 2374.
2464 2021-04-23  Martin Liska  <mliska@suse.cz>
2466         * cp-tree.h (STATIC_ASSERT): Prefer static assert.
2467         * lex.c (init_operators): Remove run-time check.
2469 2021-04-22  Marek Polacek  <polacek@redhat.com>
2471         PR c++/100161
2472         * pt.c (tsubst_copy_and_build) <case PLUS_EXPR>: Test op0 and
2473         op1 separately for value- or type-dependence.
2475 2021-04-21  Marek Polacek  <polacek@redhat.com>
2477         PR c++/96380
2478         * parser.c (cp_parser_enum_specifier): Don't allow defining
2479         types in enum-base.
2481 2021-04-21  Martin Liska  <mliska@suse.cz>
2483         Revert:
2484         2021-04-21  Martin Liska  <mliska@suse.cz>
2486         * error.c (dump_decl): Use flags in dump_generic_node call.
2488 2021-04-21  Martin Liska  <mliska@suse.cz>
2490         * error.c (dump_decl): Use flags in dump_generic_node call.
2492 2021-04-21  Martin Liska  <mliska@suse.cz>
2494         * error.c (dump_decl): Support anonymous labels.
2496 2021-04-20  Jason Merrill  <jason@redhat.com>
2498         PR c++/100109
2499         * pt.c (find_parameter_packs_r): Look into enum initializers.
2501 2021-04-19  Marek Polacek  <polacek@redhat.com>
2503         PR c++/97536
2504         * decl.c (grokvardecl): Given an error when a concept is not defined
2505         at namespace scope.
2507 2021-04-16  Jakub Jelinek  <jakub@redhat.com>
2509         PR c++/100111
2510         * constexpr.c (cxx_eval_store_expression): Don't add CONSTRUCTORs
2511         for empty classes into *valp when types don't match even when *valp
2512         is NULL.
2514 2021-04-16  Marek Polacek  <polacek@redhat.com>
2516         PR c++/99803
2517         * decl.c (make_typename_type): Give an error and return when
2518         name is is_overloaded_fn.
2519         * parser.c (cp_parser_class_name): Don't check is_overloaded_fn
2520         before calling make_typename_type.
2522 2021-04-16  Patrick Palka  <ppalka@redhat.com>
2524         PR c++/99700
2525         * constexpr.c (reduced_constant_expression_p): For array
2526         CONSTRUCTORs, use a dedicated loop that additionally verifies
2527         the CONSTRUCTOR spans the entire array.
2529 2021-04-16  Jakub Jelinek  <jakub@redhat.com>
2531         PR c++/99850
2532         * parser.c (cp_parser_constraint_requires_parens) <case CPP_DEREF>:
2533         If lambda_p, return pce_ok instead of pce_maybe_postfix.
2535 2021-04-16  Jakub Jelinek  <jakub@redhat.com>
2537         PR c++/99833
2538         * pt.c (extract_locals_r): When handling DECL_EXPR of a structured
2539         binding, add to data.internal also all corresponding structured
2540         binding decls.
2542 2021-04-16  Jason Merrill  <jason@redhat.com>
2544         PR c++/100079
2545         * cp-tree.h (first_field): Declare.
2546         * mangle.c (range_expr_nelts): New.
2547         (write_expression): Improve class NTTP mangling.
2548         * pt.c (get_template_parm_object): Clear TREE_HAS_CONSTRUCTOR.
2549         * tree.c (zero_init_expr_p): Improve class NTTP handling.
2550         * decl.c: Adjust comment.
2552 2021-04-15  Jason Merrill  <jason@redhat.com>
2554         PR c++/80456
2555         * call.c (build_new_method_call_1): Check again for side-effects
2556         with a volatile object.
2558 2021-04-15  Jason Merrill  <jason@redhat.com>
2560         PR c++/100101
2561         PR c++/99583
2562         * pt.c (find_parameter_packs_r) [FUNCTION_TYPE]: Walk into
2563         TYPE_RAISES_EXCEPTIONS here.
2564         * tree.c (cp_walk_subtrees): Not here.
2566 2021-04-15  Jason Merrill  <jason@redhat.com>
2568         PR c++/100091
2569         PR c++/99478
2570         * parser.c (cp_parser_default_type_template_argument): Set
2571         parser->local_variables_forbidden_p.
2573 2021-04-15  Richard Sandiford  <richard.sandiford@arm.com>
2575         PR c++/98852
2576         * typeck.c (merge_type_attributes_from): New function.
2577         (cp_common_type): Use it for vector types.
2579 2021-04-14  Jason Merrill  <jason@redhat.com>
2581         PR c++/100078
2582         PR c++/93085
2583         * pt.c (uses_outer_template_parms): Also look at default
2584         template argument.
2586 2021-04-14  Jason Merrill  <jason@redhat.com>
2588         PR c++/93314
2589         * semantics.c (finish_id_expression_1): Clear cp_unevaluated_operand
2590         for a non-static data member in a constant-expression.
2592 2021-04-14  Patrick Palka  <ppalka@redhat.com>
2594         PR c++/83476
2595         PR c++/99885
2596         * pt.c (deducible_expression): Look through implicit
2597         INDIRECT_REFs as well.
2599 2021-04-14  Jason Merrill  <jason@redhat.com>
2601         PR c++/99478
2602         * parser.c (cp_parser_lambda_expression): Reject lambda
2603         in template parameter type.
2605 2021-04-14  Jason Merrill  <jason@redhat.com>
2607         PR c++/90674
2608         * decl.c (duplicate_decls): Don't propagate
2609         DECL_INITIALIZED_IN_CLASS_P to a specialization.
2611 2021-04-14  Jason Merrill  <jason@redhat.com>
2613         PR c++/88742
2614         PR c++/49951
2615         PR c++/58123
2616         * semantics.c (set_cleanup_locs): New.
2617         (do_poplevel): Call it.
2618         * parser.c (cp_parser_compound_statement): Consume the }
2619         before finish_compound_stmt.
2621 2021-04-13  Jason Merrill  <jason@redhat.com>
2623         PR c++/100032
2624         * pt.c (get_underlying_template): Compare TYPE_QUALS.
2626 2021-04-13  Jason Merrill  <jason@redhat.com>
2628         PR c++/100054
2629         PR c++/90479
2630         * init.c (get_nsdmi): Do more context adjustment for local classes.
2632 2021-04-13  Patrick Palka  <ppalka@redhat.com>
2634         PR c++/99008
2635         * pt.c (do_class_deduction): Reject alias CTAD in C++17 mode
2636         rather than issuing a pedwarn.
2637         * typeck2.c (build_functional_cast_1): Handle CTAD uniformly
2638         for consistent diagnostics.
2640 2021-04-13  Jason Merrill  <jason@redhat.com>
2642         PR c++/91933
2643         * class.c (build_base_path): Shortcut simple non-pointer case.
2645 2021-04-13  Eric Botcazou  <ebotcazou@adacore.com>
2647         * module.cc (ordinary_loc_of): Test LINEMAPS_MACRO_LOWEST_LOCATION
2648         of the linemap.
2649         (module_state::write_location): Likewise.
2651 2021-04-13  Patrick Palka  <ppalka@redhat.com>
2653         PR c++/97134
2654         * pt.c (do_class_deduction): Look through EXPR_PACK_EXPANSION
2655         when checking if the initializer is an equivalent class
2656         placeholder template parameter.
2658 2021-04-13  Patrick Palka  <ppalka@redhat.com>
2660         PR c++/99961
2661         PR c++/99994
2662         * constraint.cc (satisfy_normalized_constraints): Set
2663         cp_unevaluated.
2664         * parser.c (cp_parser_concept_definition): Likewise.
2665         (cp_parser_requires_clause_opt): Likewise.
2667 2021-04-12  Jason Merrill  <jason@redhat.com>
2669         PR c++/93085
2670         * pt.c (uses_outer_template_parms): Handle non-type and template
2671         template parameters specifically.
2673 2021-04-11  Jason Merrill  <jason@redhat.com>
2675         PR c++/97974
2676         * decl.c (fixup_anonymous_aggr): Prune all functions from
2677         CLASSTYPE_MEMBER_VEC.
2679 2021-04-10  Jason Merrill  <jason@redhat.com>
2681         PR c++/98800
2682         PR c++/97399
2683         * parser.c (cp_parser_direct_declarator): Don't
2684         inject_this_parameter if static_p.
2685         (cp_parser_omp_var_list_no_open): Parse 'this' even if
2686         current_class_ptr isn't set for a better diagnostic.
2688 2021-04-10  Jason Merrill  <jason@redhat.com>
2690         PR c++/99180
2691         PR c++/93295
2692         PR c++/93867
2693         PR c++/99118
2694         PR c++/96873
2695         * pt.c (alias_ctad_tweaks): Handle failure better.
2697 2021-04-10  Jason Merrill  <jason@redhat.com>
2699         PR c++/100006
2700         * pt.c (find_parameter_packs_r) [TAG_DEFN]: Look into bases.
2702 2021-04-09  Patrick Palka  <ppalka@redhat.com>
2704         * cp-tree.h (LAMBDA_EXPR_REGENERATED_FROM)
2705         (LAMBDA_EXPR_REGENERATING_TARGS): Replace these with ...
2706         (LAMBDA_EXPR_REGEN_INFO): ... this.
2707         (tree_lambda_expr::regenerated_from)
2708         (tree_lambda_expr::regenerating_targs): Replace these with ...
2709         (tree_lambda_expr::regen_info): ... this.
2710         * constraint.cc (satisfy_declaration_constraints): Adjust
2711         accordingly.
2712         * lambda.c (build_lambda_expr): Likewise.
2713         * pt.c (regenerated_lambda_fn_p): Likewise.
2714         (most_general_lambda): Likewise.
2715         (tsubst_lambda_expr): Likewise.
2717 2021-04-09  Marek Polacek  <polacek@redhat.com>
2719         PR c++/99806
2720         * parser.c (cp_parser_member_declaration): Call
2721         cp_parser_save_default_args even for function templates.  Use
2722         STRIP_TEMPLATE on the declaration we're passing.
2724 2021-04-08  Patrick Palka  <ppalka@redhat.com>
2726         PR c++/99874
2727         * constraint.cc (get_normalized_constraints_from_decl): Handle
2728         regenerated lambdas.
2729         (satisfy_declaration_constraints): Likewise.  Check for
2730         dependent args later.
2731         * cp-tree.h (LAMBDA_EXPR_INSTANTIATED): Replace with ...
2732         (LAMBDA_EXPR_REGENERATED_FROM): ... this.
2733         (LAMBDA_EXPR_REGENERATING_TARGS): New.
2734         (tree_lambda_expr::regenerated_from): New data member.
2735         (tree_lambda_expr::regenerating_targs): New data member.
2736         (add_to_template_args): Declare.
2737         (regenerated_lambda_fn_p): Likewise.
2738         (most_general_lambda): Likewise.
2739         * lambda.c (build_lambda_expr): Set LAMBDA_EXPR_REGENERATED_FROM
2740         and LAMBDA_EXPR_REGENERATING_TARGS.
2741         * pt.c (add_to_template_args): No longer static.
2742         (tsubst_function_decl): Unconditionally propagate constraints on
2743         the substituted function decl.
2744         (instantiated_lambda_fn_p): Rename to ...
2745         (regenerated_lambda_fn_p): ... this.  Check
2746         LAMBDA_EXPR_REGENERATED_FROM instead of
2747         LAMBDA_EXPR_INSTANTIATED.
2748         (most_general_lambda): Define.
2749         (enclosing_instantiation_of): Adjust after renaming
2750         instantiated_lambda_fn_p.
2751         (tsubst_lambda_expr): Don't set LAMBDA_EXPR_INSTANTIATED.  Set
2752         LAMBDA_EXPR_REGENERATED_FROM and LAMBDA_EXPR_REGENERATING_TARGS.
2753         Don't substitute or set constraints on the regenerated lambda.
2755 2021-04-08  Patrick Palka  <ppalka@redhat.com>
2757         PR c++/97679
2758         * pt.c (build_deduction_guide): Document OUTER_ARGS.  Substitute
2759         them into the propagated constraints.
2761 2021-04-08  Jason Merrill  <jason@redhat.com>
2763         PR c++/91849
2764         * call.c (convert_like_internal): Improve reference diagnostic.
2766 2021-04-08  Jakub Jelinek  <jakub@redhat.com>
2768         PR c++/99859
2769         * constexpr.c (addr_of_non_const_var): New function.
2770         (cxx_bind_parameters_in_call): Set *non_constant_args to true
2771         even if cp_walk_tree on arg with addr_of_non_const_var callback
2772         returns true.
2774 2021-04-08  Jason Merrill  <jason@redhat.com>
2776         PR c++/94529
2777         * pt.c (determine_specialization): Improve diagnostic.
2779 2021-04-08  Marek Polacek  <polacek@redhat.com>
2781         PR c++/99844
2782         * decl.c (build_explicit_specifier): Call
2783         check_for_bare_parameter_packs.
2784         * except.c (build_noexcept_spec): Likewise.
2786 2021-04-07  Jason Merrill  <jason@redhat.com>
2788         PR c++/41723
2789         * parser.c (cp_parser_class_name): Check dependent_scope_p.
2791 2021-04-07  Jason Merrill  <jason@redhat.com>
2793         PR c++/52625
2794         * pt.c (maybe_process_partial_specialization): Check
2795         DECL_SELF_REFERENCE_P.
2797 2021-04-07  Jason Merrill  <jason@redhat.com>
2799         PR c++/92918
2800         * name-lookup.c (push_class_level_binding_1): Do overload a new
2801         function with a previous using-declaration.
2803 2021-04-06  Jason Merrill  <jason@redhat.com>
2805         PR c++/96673
2806         * init.c (get_nsdmi): Don't defer access checking.
2808 2021-04-06  Jason Merrill  <jason@redhat.com>
2810         PR c++/99901
2811         * decl.c (cp_finish_decl): mark_needed an implicitly inline
2812         static data member with an out-of-class redeclaration.
2814 2021-04-06  Jason Merrill  <jason@redhat.com>
2816         PR c++/91241
2817         * mangle.c (write_compact_number): Add sanity check.
2818         (write_local_name): Use list_length for parm number.
2820 2021-04-06  Patrick Palka  <ppalka@redhat.com>
2822         PR c++/99899
2823         * pt.c (do_auto_deduction): Don't exit early when deducing the
2824         array type of a structured binding.  Also handle adc_decomp_type
2825         during constraint checking.
2827 2021-04-05  Jason Merrill  <jason@redhat.com>
2829         PR c++/96311
2830         * typeck.c (check_return_expr): Call mark_exp_read in dependent
2831         case.
2833 2021-04-05  Jason Merrill  <jason@redhat.com>
2835         PR c++/98440
2836         * typeck.c (build_reinterpret_cast_1): Don't perform
2837         temporary materialization.
2839 2021-04-05  Jason Merrill  <jason@redhat.com>
2841         PR c++/95317
2842         * pt.c (lookup_template_class_1): Do tsubst_enum when
2843         tsubsting a generic lambda.
2845 2021-04-05  Jason Merrill  <jason@redhat.com>
2847         PR c++/95870
2848         * pt.c (enclosing_instantiation_of): Compare DECL_SOURCE_LOCATION if
2849         there is no enclosing non-lambda function.
2851 2021-04-05  Nathan Sidwell  <nathan@acm.org>
2853         PR c++/99380
2854         * module.cc (name_pending_imports): Drop 'atend' parm.  Don't
2855         query export when not needed.
2856         (preprocess_module, preprocessed_module): Adjust.
2858 2021-04-05  Jason Merrill  <jason@redhat.com>
2860         PR c++/99066
2861         * pt.c (mark_decl_instantiated): Set DECL_EXTERNAL.
2863 2021-04-05  Jason Merrill  <jason@redhat.com>
2865         PR c++/99201
2866         * pt.c (class el_data): Add visited field.
2867         (extract_local_specs): Pass it to cp_walk_tree.
2868         (extract_locals_r): Walk into the body of a lambda.
2870 2021-04-05  Jason Merrill  <jason@redhat.com>
2872         * ptree.c (cxx_print_decl): Check DECL_MODULE_IMPORT_P on
2873         template result.
2875 2021-04-04  Jason Merrill  <jason@redhat.com>
2877         PR c++/99643
2878         * typeck2.c (massage_init_elt): Don't strip TARGET_EXPR.
2880 2021-04-03  Marek Polacek  <polacek@redhat.com>
2882         PR c++/91416
2883         * parser.c: Create a GC root for attributes in a decl specifier.
2884         (cp_parser_type_specifier): Push/pop ->attributes onto/from it.
2886 2021-04-03  Jason Merrill  <jason@redhat.com>
2888         PR c++/91217
2889         * pt.c (tsubst_lambda_expr): Skip the body block from
2890         DECL_SAVED_TREE.
2892 2021-04-03  Jason Merrill  <jason@redhat.com>
2894         PR c++/90664
2895         * cvt.c (can_convert_qual): Check fnptr_conv_p.
2897 2021-04-03  Jason Merrill  <jason@redhat.com>
2899         PR c++/97900
2900         * pt.c (regenerate_decl_from_template): tsubst_decl
2901         the parms.
2903 2021-04-02  Patrick Palka  <ppalka@redhat.com>
2905         PR c++/99869
2906         * parser.c (do_range_for_auto_deduction): Pass adc_variable_type
2907         to do_auto_deduction.
2909 2021-04-02  Patrick Palka  <ppalka@redhat.com>
2911         PR c++/99586
2912         * semantics.c (finish_compound_literal): Check
2913         template_placeholder_p instead of type_uses_auto.
2915 2021-04-02  Jason Merrill  <jason@redhat.com>
2917         PR c++/97938
2918         * cp-tree.h (PACK_EXPANSION_AUTO_P): New.
2919         * lambda.c (add_capture): Set it.
2920         * pt.c (tsubst_pack_expansion): Handle it.
2922 2021-04-02  Nathan Sidwell  <nathan@acm.org>
2924         * cp-tree.h (lang_decl_base): Correct module flag comment.
2925         * module.cc (trees_in::assert_definition): Break out
2926         not_tmpl var.
2927         (trees_out::lang_decl_bools): Do not write purview for header units.
2929 2021-04-01  Marek Polacek  <polacek@redhat.com>
2931         PR c++/99831
2932         * method.c (defaulted_late_check): ++ and -- function_depth around
2933         the call to synthesize_method.
2934         * pt.c: Remove the saved_trees global.
2936 2021-04-01  Jason Merrill  <jason@redhat.com>
2938         PR c++/99583
2939         PR c++/99584
2940         * tree.c (cp_walk_subtrees) [FUNCTION_TYPE]: Walk into
2941         TYPE_RAISES_EXCEPTIONS.
2943 2021-04-01  Iain Sandoe  <iain@sandoe.co.uk>
2945         * mapper-client.cc (INCLUDE_MAP): New; require map to be
2946         included from system.h.
2947         * mapper-resolver.cc (INCLUDE_MAP): Likewise.
2949 2021-04-01  Jason Merrill  <jason@redhat.com>
2951         PR c++/98481
2952         * mangle.c (write_expression): Adjust.
2953         * class.c (find_abi_tags_r): Disable PR98481 fix for ABI v14.
2954         (mark_abi_tags_r): Likewise.
2956 2021-04-01  Nathan Sidwell  <nathan@acm.org>
2958         PR c++/99283
2959         * module.cc (trees_out::decl_node): Adjust importedness reference
2960         assert.
2961         (module_state::intercluster_seed): New.  Seed both imports and
2962         inter-cluster references.  Broken out of ...
2963         (module_state::write_cluster): ... here.  Call it.
2965 2021-03-31  Jason Merrill  <jason@redhat.com>
2967         PR c++/99445
2968         * tree.c (strip_typedefs): Handle TYPE_PACK_EXPANSION.
2970 2021-03-31  Patrick Palka  <ppalka@redhat.com>
2972         PR c++/88115
2973         * mangle.c (write_expression): Adjust the mangling of
2974         __alignof__.
2976 2021-03-31  Patrick Palka  <ppalka@redhat.com>
2978         PR c++/99815
2979         * pt.c (placeholder_type_constraint_dependent_p): Expand
2980         argument packs to separate the first non-pack argument
2981         from the rest.
2983 2021-03-30  Nathan Sidwell  <nathan@acm.org>
2985         PR c++/99283
2986         * module.cc (dumper::operator): Make less brittle.
2987         (trees_out::core_bools): VAR_DECLs always have a context.
2988         (trees_out::key_mergeable): Use same_type_p for asserting.
2989         (trees_in::read_var_def): Propagate
2990         DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P.
2992 2021-03-30  Jakub Jelinek  <jakub@redhat.com>
2994         PR c++/99790
2995         * cp-gimplify.c (cp_gimplify_expr): Handle PTRMEM_CST.
2997 2021-03-26  Marek Polacek  <polacek@redhat.com>
2999         PR c++/98352
3000         * method.c (implicitly_declare_fn): Pass &raises to
3001         synthesized_method_walk.
3003 2021-03-26  Nathan Sidwell  <nathan@acm.org>
3005         PR c++/99283
3006         * cp-tree.h (DECL_MODULE_CHECK): Ban TEMPLATE_DECL.
3007         (SET_TYPE_TEMPLATE_INFO): Restore Alias template setting.
3008         * decl.c (duplicate_decls): Remove template_decl module flag
3009         propagation.
3010         * module.cc (merge_kind_name): Add alias tmpl spec as a thing.
3011         (dumper::impl::nested_name): Adjust for template-decl module flag
3012         change.
3013         (trees_in::assert_definition): Likewise.
3014         (trees_in::install_entity): Likewise.
3015         (trees_out::decl_value): Likewise.  Remove alias template
3016         separation of template and type_decl.
3017         (trees_in::decl_value): Likewise.
3018         (trees_out::key_mergeable): Likewise,
3019         (trees_in::key_mergeable): Likewise.
3020         (trees_out::decl_node): Adjust for template-decl module flag
3021         change.
3022         (depset::hash::make_dependency): Likewise.
3023         (get_originating_module, module_may_redeclare): Likewise.
3024         (set_instantiating_module, set_defining_module): Likewise.
3025         * name-lookup.c (name_lookup::search_adl): Likewise.
3026         (do_pushdecl): Likewise.
3027         * pt.c (build_template_decl): Likewise.
3028         (lookup_template_class_1): Remove special alias_template handling
3029         of DECL_TI_TEMPLATE.
3030         (tsubst_template_decl): Likewise.
3032 2021-03-26  Jakub Jelinek  <jakub@redhat.com>
3034         PR c++/99705
3035         * tree.c (bot_manip): Remap artificial automatic temporaries mentioned
3036         in DECL_EXPR or in BIND_EXPR_VARS.
3038 2021-03-25  Jakub Jelinek  <jakub@redhat.com>
3040         PR c++/99672
3041         * parser.c (cp_parser_postfix_expression): For calls, create
3042         combined_loc and temporarily set input_location to it before
3043         calling finish_call_expr.
3045 2021-03-25  Marek Polacek  <polacek@redhat.com>
3047         PR c++/94751
3048         * call.c (build_over_call): Maybe call mark_used in case
3049         deduce_inheriting_ctor fails and return error_mark_node.
3050         * cp-tree.h (deduce_inheriting_ctor): Adjust declaration.
3051         * method.c (deduce_inheriting_ctor): Return bool if the deduction
3052         fails.
3053         (implicitly_declare_fn): If raises is error_mark_node, call
3054         synthesized_method_walk with diag being true.
3056 2021-03-25  Jakub Jelinek  <jakub@redhat.com>
3058         PR c++/99745
3059         * decl2.c (grokbitfield): Diagnose bitfields containing bare parameter
3060         packs and don't set DECL_BIT_FIELD_REPRESENTATIVE in that case.
3062 2021-03-25  Marek Polacek  <polacek@redhat.com>
3064         PR c++/99331
3065         * call.c (build_converted_constant_expr_internal): Don't emit
3066         -Wconversion warnings.
3068 2021-03-25  Jakub Jelinek  <jakub@redhat.com>
3070         PR c++/99565
3071         * call.c (build_conditional_expr_1): Pass OEP_ADDRESS_OF_SAME_FIELD
3072         to operand_equal_p.
3073         * cvt.c (convert_to_void): Preserve location_t on COND_EXPR or
3074         or COMPOUND_EXPR.
3076 2021-03-23  Nathan Sidwell  <nathan@acm.org>
3078         PR c++/99283
3079         * name-lookup.c (check_module_override): Set global or partition
3080         DUP on the binding vector.
3082 2021-03-23  Marek Polacek  <polacek@redhat.com>
3084         PR c++/99318
3085         * decl2.c (cp_warn_deprecated_use_scopes): Only call
3086         cp_warn_deprecated_use when decl is a namespace, class, or enum.
3088 2021-03-23  Nathan Sidwell  <nathan@acm.org>
3090         PR c++/99239
3091         * decl.c (duplicate_decls): Remove assert about maybe-imported
3092         artificial decls.
3094 2021-03-23  Jakub Jelinek  <jakub@redhat.com>
3096         PR c++/99650
3097         * decl.c (cp_finish_decomp): Diagnose void initializers when
3098         using tuple_element and get.
3100 2021-03-22  Nathan Sidwell  <nathan@acm.org>
3102         PR c++/99480
3103         * module.cc (depset::hash::make_dependency): Propagate flags for
3104         partial specialization.
3105         (module_may_redeclare): Handle partial specialization.
3107 2021-03-22  Nathan Sidwell  <nathan@acm.org>
3109         PR c++/99425
3110         * cp-tree.h (map_context_from, map_context_to): Delete.
3111         (add_mergeable_specialization): Add is_alias parm.
3112         * pt.c (add_mergeable_specialization): Add is_alias parm, add them.
3113         * module.cc (map_context_from, map_context_to): Delete.
3114         (trees_in::decl_value): Add specializations later, adjust call.
3115         Drop useless alias lookup. Set duplicate fn parm context.
3116         (check_mergeable_decl): Drop context mapping.
3117         (trees_in::is_matching_decl): Likewise.
3118         (trees_in::read_function_def): Drop parameter context adjustment
3119         here.
3121 2021-03-22  Martin Liska  <mliska@suse.cz>
3123         PR c++/99687
3124         * module.cc (fini_modules): Call vec_free instead of delete.
3126 2021-03-20  Jakub Jelinek  <jakub@redhat.com>
3128         PR debug/99230
3129         * cp-gimplify.c (cp_genericize_r) <case STATEMENT_LIST>: Remove
3130         special code, instead call c_genericize_control_stmt.
3132 2021-03-19  Jakub Jelinek  <jakub@redhat.com>
3134         PR c++/99456
3135         * constexpr.c (cxx_eval_constant_expression): For CONVERT_EXPR from
3136         INDIRECT_TYPE_P to ARITHMETIC_TYPE_P, when !ctx->manifestly_const_eval
3137         don't diagnose it, set *non_constant_p nor return t.
3139 2021-03-19  Marek Polacek  <polacek@redhat.com>
3141         PR c++/99500
3142         * parser.c (cp_parser_requirement_parameter_list): Handle
3143         error_mark_node.
3145 2021-03-18  Marek Polacek  <polacek@redhat.com>
3147         * pt.c (tsubst_copy_and_build) <case FLOAT_EXPR>: Remove.
3149 2021-03-18  Marek Polacek  <polacek@redhat.com>
3151         * pt.c (tsubst_copy_and_build): Add assert.
3153 2021-03-18  Iain Sandoe  <iain@sandoe.co.uk>
3155         PR objc++/49070
3156         * parser.c (cp_debug_parser): Add Objective-C++ message
3157         state flag.
3158         (cp_parser_nested_name_specifier_opt): Allow colon to
3159         terminate an assignment-expression when parsing Objective-
3160         C++ messages.
3161         (cp_parser_objc_message_expression): Set and clear message
3162         parsing state on entry and exit.
3163         * parser.h (struct cp_parser): Add a context flag for
3164         Objective-C++ message state.
3166 2021-03-18  Martin Liska  <mliska@suse.cz>
3168         PR c++/99617
3169         * coroutines.cc (struct var_nest_node): Init then_cl and else_cl
3170         to NULL.
3172 2021-03-17  Marek Polacek  <polacek@redhat.com>
3174         PR c++/97973
3175         * call.c (conv_unsafe_in_template_p): New.
3176         (convert_like): Use it.
3178 2021-03-17  Anthony Sharp  <anthonysharp15@gmail.com>
3179             Jason Merrill  <jason@redhat.com>
3181         * semantics.c (get_class_access_diagnostic_decl): New
3182         function that examines special cases when a parent
3183         class causes a private access failure.
3184         (enforce_access): Slightly modified to call function
3185         above.
3187 2021-03-16  Jason Merrill  <jason@redhat.com>
3189         * tree.c (cp_tree_equal): Use real_identical.
3191 2021-03-16  Jakub Jelinek  <jakub@redhat.com>
3193         PR c++/99613
3194         * decl.c (expand_static_init): For thread guards, call __cxa_atexit
3195         before calling __cxa_guard_release rather than after it.  Formatting
3196         fixes.
3198 2021-03-16  Martin Liska  <mliska@suse.cz>
3199             Jason Merrill  <jason@redhat.com>
3201         PR c++/99108
3202         * call.c (get_function_version_dispatcher): Handle
3203         DECL_LOCAL_DECL_P.
3204         * decl.c (maybe_version_functions): Likewise.
3205         (maybe_mark_function_versioned): New.
3206         * name-lookup.c (push_local_extern_decl_alias): No longer static.
3207         * name-lookup.h (push_local_extern_decl_alias): Adjust.
3209 2021-03-16  Nathan Sidwell  <nathan@acm.org>
3211         PR c++/99496
3212         * module.cc (trees_out::decl_value): Adjust typedef streaming,
3213         indicate whether it is a dependent alias.
3214         (trees_in::decl_value): Likewise.  Set as dependent alias, if it
3215         is one.
3217 2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
3219         PR c++/99047
3220         * coroutines.cc (expand_one_await_expression): If the
3221         await_ready() expression is not a boolean then convert it
3222         as required.
3224 2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
3226         PR c++/98704
3227         * coroutines.cc (build_actor_fn): Make destroy index 1
3228         correspond to the abnormal unhandled_exception() exit.
3229         Substitute the proxy for the resume index.
3230         (coro_rewrite_function_body): Arrange to reset the resume
3231         index and make done = true for a rethrown exception from
3232         unhandled_exception ().
3233         (morph_fn_to_coro): Adjust calls to build_actor_fn and
3234         coro_rewrite_function_body.
3236 2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
3238         PR c++/98480
3239         * coroutines.cc (replace_continue): Rewrite continue into
3240         'goto label'.
3241         (await_statement_walker): Handle await expressions in the
3242         initializer, condition and iteration expressions of for
3243         loops.
3245 2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
3247         PR c++/96749
3248         * coroutines.cc (flatten_await_stmt): Allow for the case
3249         where a target expression variable only has uses in the
3250         second part of a compound expression.
3251         (maybe_promote_temps): Avoid emiting empty statements.
3253 2021-03-15  Tobias Burnus  <tobias@codesourcery.com>
3255         PR c++/99509
3256         * decl.c (cp_finish_decl): For 'omp declare target implicit' vars,
3257         ensure that the varpool node is marked as offloadable.
3259 2021-03-12  Nathan Sidwell  <nathan@acm.org>
3261         PR c++/99238
3262         * module.cc (depset::hash::add_binding_entity): Assert not
3263         visited.
3264         (depset::add::add_specializations): Likewise.
3265         * name-lookup.c (name_lookup::dedup): New.
3266         (name_lookup::~name_lookup): Assert not deduping.
3267         (name_lookup::restore_state): Likewise.
3268         (name_lookup::add_overload): Replace outlined code with dedup
3269         call.
3270         (name_lookup::add_value): Likewise.
3271         (name_lookup::search_namespace_only): Likewise.
3272         (name_lookup::adl_namespace_fns): Likewise.
3273         (name_lookup::adl_class_fns): Likewise.
3274         (name_lookup::search_adl): Likewise.  Add clearing dedup call.
3275         (name_lookup::search_qualified): Likewise.
3276         (name_lookup::search_unqualified): Likewise.
3278 2021-03-12  Jakub Jelinek  <jakub@redhat.com>
3280         PR c++/99507
3281         * call.c (build_over_call): For immediate evaluation of functions
3282         that return references, undo convert_from_reference effects before
3283         calling cxx_constant_value and call convert_from_reference
3284         afterwards.
3286 2021-03-11  Nathan Sidwell  <nathan@acm.org>
3288         PR c++/99248
3289         * name-lookup.c (lookup_elaborated_type_1): Access slot not bind
3290         when there's a binding vector.
3291         * ptree.c (cxx_print_xnode): Lazy flags are no longer a thing.
3293 2021-03-11  Nathan Sidwell  <nathan@acm.org>
3295         PR c++/99528
3296         * module.cc (enum merge_kind): Delete MK_type_tmpl_spec,
3297         MK_decl_tmpl_spec.
3298         (trees_in::decl_value): Adjust add_mergeable_specialization call.
3299         (trees_out::get_merge_kind): Adjust detecting a partial template
3300         instantiation.
3301         (trees_out::key_mergeable): Adjust handling same.
3302         (trees_in::key_mergeabvle): Likewise.
3304 2021-03-10  Nathan Sidwell  <nathan@acm.org>
3306         PR c++/99423
3307         * module.cc (post_load_processing): Assert not gcable.
3308         (laxy_load_pendings): Extend no-gc region around
3309         post_load_processing.
3311 2021-03-10  Nathan Sidwell  <nathan@acm.org>
3313         PR c++/99508
3314         * decl.c (make_rtl_for_nonlocal_decl): Propagate local-extern's
3315         assembler name to the ns alias.
3317 2021-03-09  Jakub Jelinek  <jakub@redhat.com>
3319         PR c++/99459
3320         * coroutines.cc (build_co_await): Look through NOP_EXPRs in
3321         build_special_member_call return value to find the CALL_EXPR.
3322         Simplify.
3324 2021-03-09  Nathan Sidwell  <nathan@acm.org>
3326         PR c++/99472
3327         * parser.c (cp_parser_diagnose_invalid_type_name): Clarify
3328         that C++20 does not yet imply modules.
3330 2021-03-08  Nathan Sidwell  <nathan@acm.org>
3332         PR c++/99436
3333         * name-lookup.c (get_cxx_dialect_name): Add cxx23.
3335 2021-03-08  Nathan Sidwell  <nathan@acm.org>
3337         * lex.c (module_token_filter::resume): Ignore module-decls inside
3338         header-unit.
3339         * parser.c (cp_parser_module_declaration): Reject in header-unit.
3341 2021-03-08  Nathan Sidwell  <nathan@acm.org>
3343         PR c++/99285
3344         * cp-tree.h (match_mergeable_specialization)
3345         (add_mergeable_specialization): Adjust parms.
3346         * module.cc (trees_in::decl_value): Adjust
3347         add_mergeable_specialization calls.
3348         (trees_out::key_mergeable): Adjust match_mergeable_specialization
3349         calls.
3350         (specialization_add): Likewise.
3351         * pt.c (match_mergeable_specialization): Do not insert.
3352         (add_mergeable_specialization): Add to hash table here.
3354 2021-03-06  Patrick Palka  <ppalka@redhat.com>
3355             Jakub Jelinek  <jakub@redhat.com>
3357         PR c++/99287
3358         * constexpr.c (cxx_eval_increment_expression): Pass lval when
3359         evaluating the MODIFY_EXPR, and update 'mod' with the result of
3360         this evaluation.  Check *non_constant_p afterwards.  For prefix
3361         ops, just return 'mod'.
3363 2021-03-06  Patrick Palka  <ppalka@redhat.com>
3364             Jakub Jelinek  <jakub@redhat.com>
3366         PR c++/96330
3367         * pt.c (tsubst_copy) <case TEMPLATE_ID_EXPR>: Rename local
3368         variable 'fn' to 'tmpl'.  Handle a variable template-id by
3369         calling lookup_template_variable.
3371 2021-03-06  Patrick Palka  <ppalka@redhat.com>
3373         PR c++/99365
3374         * pt.c (unify) <case TEMPLATE_TYPE_PARM>: Pass targs as
3375         outer_targs to do_auto_deduction.
3376         (placeholder_type_constraint_dependent_p): Define.
3377         (do_auto_deduction): When processing_template_decl != 0
3378         and context is adc_unify and we have constraints, pretend the
3379         constraints are satisfied instead of punting.  Otherwise don't
3380         punt unless placeholder_type_constraint_dependent_p holds.
3381         Add some clarifying sanity checks.  Add a hack to add missing
3382         outermost template levels to outer_args before checking
3383         satisfaction.  Don't substitute outer_targs into type if it's
3384         already been done.
3386 2021-03-05  Marek Polacek  <polacek@redhat.com>
3388         PR c++/99374
3389         * call.c (standard_conversion): When converting pointers to
3390         member, don't return NULL when the bases are equivalent but
3391         incomplete.
3393 2021-03-05  Marek Polacek  <polacek@redhat.com>
3395         PR c++/99120
3396         * name-lookup.c (check_local_shadow): Check if the type of decl
3397         is non-null before checking TYPE_PTR*.
3399 2021-03-05  Nathan Sidwell  <nathan@acm.org>
3401         PR c++/99245
3402         * module.cc (module_state::write_cluster): Relax binding assert.
3404 2021-03-05  Nathan Sidwell  <nathan@acm.org>
3406         PR c++/99377
3407         * pt.c (instantiate_decl): Call set_instantiating_module.
3409 2021-03-05  Iain Sandoe  <iain@sandoe.co.uk>
3411         PR c++/98118
3412         * coroutines.cc (build_co_await): Use type_build_ctor_call()
3413         to determine cases when a CTOR needs to be built.
3414         (flatten_await_stmt): Likewise.
3415         (morph_fn_to_coro): Likewise.
3417 2021-03-05  Iain Sandoe  <iain@sandoe.co.uk>
3419         PR c++/95616
3420         * coroutines.cc (coro_diagnose_throwing_fn): New helper.
3421         (coro_diagnose_throwing_final_aw_expr): New helper.
3422         (build_co_await): Diagnose throwing final await expression
3423         components.
3424         (build_init_or_final_await): Diagnose a throwing promise
3425         final_suspend() call.
3427 2021-03-05  Iain Sandoe  <iain@sandoe.co.uk>
3429         PR c++/95615
3430         * coroutines.cc (struct param_info): Track parameter copies that need
3431         a DTOR.
3432         (coro_get_frame_dtor): New helper function factored from build_actor().
3433         (build_actor_fn): Use coro_get_frame_dtor().
3434         (morph_fn_to_coro): Track parameters that need DTORs on exception,
3435         likewise the frame promise and the return object.  On exception, run the
3436         DTORs for these, destroy the frame and then rethrow the exception.
3438 2021-03-05  Nathan Sidwell  <nathan@acm.org>
3440         PR c++/99389
3441         * pt.c (instantiate_class_template_1): Set instantiating module
3442         here.
3444 2021-03-05  Tobias Burnus  <tobias@codesourcery.com>
3446         PR c/99137
3447         * parser.c (cp_parser_oacc_clause_async): Reject comma expressions.
3449 2021-03-04  Jakub Jelinek  <jakub@redhat.com>
3451         PR c++/88146
3452         PR c++/99362
3453         * cvt.c (convert_to_void): Revert 2019-10-17 changes.  Clarify
3454         comment.
3456 2021-03-04  Nathan Sidwell  <nathan@acm.org>
3458         PR c++/99170
3459         * module.cc (class uintset): Delete.
3460         (typedef attached_map_t): A hash map.
3461         (attached_table): Use attached_map_t.  Adjust uses ...
3462         (trees_out::decl_value, trees_in::decl_value): ... here ...
3463         (trees_out::key_mergeable): ... here ...
3464         (trees_in::key_mergeable): ... here ...
3465         (maybe_attach_decl): ... here ...
3466         (direct_import): ... and here.
3468 2021-03-04  Nathan Sidwell  <nathan@acm.org>
3470         PR c++/99170
3471         * cp-tree.h
3472         * lex.c (cxx_dup_lang_specific_decl): Adjust for module_attached_p
3473         rename.
3474         * module.cc (class pending_key): New.
3475         (default_hash_traits<pending_key>): New specialization.
3476         (pending_map_t): New typedef.
3477         (pending_table): Replace old table.
3478         (trees_out::lang_decl_bools): Adjust.
3479         (trees_in::lang_decl_bools): Adjust.
3480         (trees_in::install_entity): Drop pending member and specialization
3481         handling.
3482         (find_pending_key): New.
3483         (depset::hash::fiund_dependencies): Use it.
3484         (pendset_lazy_load): Delete.
3485         (module_state::write_cluster): Don't count pendings here.  Bye
3486         Duff's device-like thing.
3487         (module_state::write_pendings): Reimplement.
3488         (module_state::read_pendings): Reimplement.
3489         (lazy_specializations_p): Delete.
3490         (module_state::write): Adjust write_pendings call.
3491         (lazy_load_pendings): New.
3492         (lazy_load_specializations): Delete.
3493         (lazy_load_members): Delete.
3494         (init_modules): Adjust.
3495         * name-lookup.c (maybe_lazily_declare): Call lazy_load_pendings
3496         not lazy_load_members.
3497         (note_pending_specializations): Delete.
3498         (load_pending_specializations): Delete.
3499         * name-lookup.h (BINDING_VECTR_PENDING_SPECIALIZATIONS_P): Delete.
3500         (BINDING_VECTOR_PENDING_MEMBERS_P): Delete.
3501         (BINDING_VECTR_PENDING_MEMBERS_P): Delete.
3502         (note_pending_specializations): Delete.
3503         (load_pending_specializations): Delete.
3504         * pt.c (lookup_template_class_1): Call lazy_load_pendings not
3505         lazy_load_specializations.
3506         (instantiate_template_class_1): Likewise.
3507         (instantiate_decl): Call lazy_load_pendings.
3508         * typeck.c (complete_type): Likewise.
3510 2021-03-03  Nathan Sidwell  <nathan@acm.org>
3512         PR c++/99170
3513         * module.cc (post_load_decls): New.
3514         (lazy_snum, recursive_lazy): Move earlier.
3515         (module_state::read_cluster): Push cloning onto post_load_decls.
3516         (post_load_processing): New.  Do the cloning here.
3517         (module_state::read_inits): Call post_load_processing.
3518         (module_state::read_language): Likewise.
3519         (lazy_load_binding, lazy_load_specializations): Likewise
3520         (lazy_load_members): Likewise
3522 2021-03-03  Nathan Sidwell  <nathan@acm.org>
3524         PR c++/99170
3525         * module.cc (trees_out::decl_value): Stream specialization keys
3526         after decl.
3527         (trees_in::decl_value): Stream them back and insert after
3528         completing the decl.
3529         (trees_out::key_mergeable): Drop some streaming here ...
3530         (trees_in::key_mergeable): ... and here.  Don't insert into
3531         specialization tables.
3533 2021-03-03  Patrick Palka  <ppalka@redhat.com>
3535         * constraint.cc (struct sat_info): Document the different
3536         meanings of noisy() and diagnose_unsatisfaction_p() during
3537         satisfaction and requires-expression evaluation.
3538         (tsubst_valid_expression_requirement): Take a sat_info instead
3539         of a subst_info.  Perform the substitution quietly first.  Fold
3540         in error-replaying code from diagnose_valid_expression.
3541         (tsubst_simple_requirement): Take a sat_info instead of a
3542         subst_info.
3543         (tsubst_type_requirement_1): New.  Fold in error-replaying code
3544         from diagnose_valid_type.
3545         (tsubst_type_requirement): Use the above.  Take a sat_info
3546         instead of a subst_info.
3547         (tsubst_compound_requirement): Likewise.  Fold in
3548         error-replaying code from diagnose_compound_requirement.
3549         (tsubst_nested_requirement): Take a sat_info instead of a
3550         subst_info.  Fold in error-replaying code from
3551         diagnose_nested_requirement.
3552         (tsubst_requirement): Take a sat_info instead of a subst_info.
3553         (tsubst_requires_expr): Split into two versions, one that takes
3554         a sat_info argument and another that takes a complain and
3555         in_decl argument.  Remove outdated documentation.  Document the
3556         effects of the sat_info argument.  Don't short-circuit
3557         processing of requirements when diagnosing unsatisfaction,
3558         mirroring diagnose_requires_expr.
3559         (satisfy_nondeclaration_constraint) <case REQUIRES_EXPR>: Remove
3560         assert, and se the three-parameter version of tsubst_requires_expr.
3561         (diagnose_trait_expr): Make static.  Take a template argument
3562         vector instead of a parameter mapping.
3563         (diagnose_valid_expression): Remove.
3564         (diagnose_valid_type): Remove.
3565         (diagnose_simple_requirement): Remove.
3566         (diagnose_compound_requirement): Remove.
3567         (diagnose_type_requirement): Remove.
3568         (diagnose_nested_requirement): Remove.
3569         (diagnose_requirement): Remove.
3570         (diagnose_requires_expr): Remove.
3571         (diagnose_atomic_constraint): Take a sat_info instead of a
3572         subst_info.  Adjust call to diagnose_trait_expr.  Call
3573         tsubst_requires_expr instead of diagnose_requires_expr.
3574         (diagnose_constraints): Remove special casing of REQUIRES_EXPR
3575         and just always call constraint_satisfaction_value.
3577 2021-03-03  Patrick Palka  <ppalka@redhat.com>
3579         * constexpr.c (cxx_eval_call_expression): Adjust call to
3580         evaluate_concept_check.
3581         (cxx_eval_constant_expression) <case REQUIRES_EXPR>: Use
3582         evaluate_requires_expression instead of
3583         satisfy_constraint_expression.
3584         <case TEMPLATE_ID_EXPR>: Adjust call to evaluate_concept_check.
3585         * constraint.cc (struct sat_info): Adjust comment about which
3586         satisfaction entrypoints use noisy-unsat.
3587         (normalize_template_requirements): Remove (and adjust callers
3588         appropriately).
3589         (normalize_nontemplate_requirements): Likewise.
3590         (tsubst_nested_requirement): Use constraint_satisfaction_value
3591         instead of satisfy_constraint_expression, which'll do the
3592         noisy replaying of ill-formed quiet satisfaction for us.
3593         (decl_satisfied_cache): Adjust comment.
3594         (satisfy_constraint): Rename to ...
3595         (satisfy_normalized_constraints): ... this.
3596         (satisfy_associated_constraints): Remove (and make its
3597         callers check for dependent arguments).
3598         (satisfy_constraint_expression): Rename to ...
3599         (satisfy_nondeclaration_constraints): ... this.  Assert that
3600         'args' is empty when 't' is a concept-id.  Removing handling
3601         bare constraint-expressions, and handle REQUIRES_EXPRs
3602         specially.  Adjust comment accordingly.
3603         (satisfy_declaration_constraints): Assert in the two-parameter
3604         version that 't' is not a TEMPLATE_DECL.  Adjust following
3605         removal of normalize_(non)?template_requirements and
3606         satisfy_asociated_constraints.
3607         (constraint_satisfaction_value): Combine the two- and
3608         three-parameter versions in the natural way.
3609         (constraints_satisfied_p): Combine the one- and two-parameter
3610         versions in the natural way.  Improve documentation.
3611         (evaluate_requires_expr): Define.
3612         (evaluate_concept_check): Remove 'complain' parameter.  Use
3613         constraint_satisfaction_value instead of
3614         satisfy_constraint_expression.
3615         (diagnose_nested_requirement): Adjust following renaming of
3616         satisfy_constraint_expression.
3617         (diagnose_constraints): Handle REQUIRES_EXPR by going through
3618         diagnose_requires_expr directly instead of treating it as a
3619         constraint-expression.  Improve documentation.
3620         * cp-gimplify.c (cp_genericize_r) <case CALL_EXPR>: Adjust call
3621         to evaluate_concept_check.
3622         <case REQUIRES_EXPR>: Use evaluate_requires_expr instead of
3623         constraints_satisfied_p.
3624         <case TEMPLATE_ID_EXPR>: Adjust call to evaluate_concept_check.
3625         * cp-tree.h (evaluate_requires_expr): Declare.
3626         (evaluate_concept_check): Remove tsubst_flag_t parameter.
3627         (satisfy_constraint_expression): Remove declaration.
3628         (constraints_satisfied_p): Remove one-parameter declaration.
3629         Add a default argument to the two-parameter declaration.
3630         * cvt.c (convert_to_void): Adjust call to
3631         evaluate_concept_check.
3633 2021-03-03  Jakub Jelinek  <jakub@redhat.com>
3635         PR c++/82959
3636         * call.c (op_is_ordered): Handle TRUTH_ANDIF_EXPR, TRUTH_ORIF_EXPR
3637         and COMPOUND_EXPR.
3639 2021-03-03  Marek Polacek  <polacek@redhat.com>
3641         PR c++/97034
3642         PR c++/99009
3643         * pt.c (build_deduction_guide): Use INNERMOST_TEMPLATE_ARGS.
3644         (maybe_aggr_guide): Use the original template type where needed.  In
3645         a class member template, partially instantiate the result of
3646         collect_ctor_idx_types.
3647         (do_class_deduction): Defer the deduction until the enclosing
3648         scope is non-dependent.
3650 2021-03-03  Jason Merrill  <jason@redhat.com>
3652         PR c++/95675
3653         * call.c (build_temp): Wrap a CALL_EXPR in a TARGET_EXPR
3654         if it didn't get one before.
3656 2021-03-03  Nathan Sidwell  <nathan@acm.org>
3658         PR c++/99344
3659         * module.cc (trees_out::decl_node): Small refactor.
3660         (depset::hash::add_binding_entity): Return true on meeting an
3661         import.  Set namespace's import here.
3662         (module_state:write_namespaces): Inform of purview too.
3663         (module_state:read_namespaces): Adjust.
3664         * name-lookup.c (implicitly_export_namespace): Delete.
3665         (do_pushdecl): Don't call it.
3666         (push_namespace): Likewise, set purview.
3667         (add_imported_namespace): Reorder parms.
3668         * name-lookup.h (add_imported_namespace): Alter param ordering.
3670 2021-03-02  Martin Sebor  <msebor@redhat.com>
3672         PR c++/99251
3673         * class.c (build_base_path): Call build_if_nonnull.
3674         * cp-tree.h (build_if_nonnull): Declare.
3675         * rtti.c (ifnonnull): Rename...
3676         (build_if_nonnull): ...to this.  Set no-warning bit on COND_EXPR.
3677         (build_dynamic_cast_1): Adjust to name change.
3679 2021-03-02  Patrick Palka  <ppalka@redhat.com>
3681         PR c++/96443
3682         PR c++/96960
3683         * constraint.cc (type_deducible_p): Don't substitute into the
3684         constraints, and instead just pass 'args' to do_auto_deduction
3685         as the outer template arguments.
3686         (tsubst_parameter_mapping): Remove confused code for handling
3687         placeholder type arguments.
3688         (normalize_placeholder_type_constraint): Define.
3689         (satisfy_constraint_expression): Use it to handle placeholder
3690         'auto' types.
3691         * cp-tree.h (PLACEHOLDER_TYPE_CONSTRAINTS_INFO): Define.
3692         (PLACEHOLDER_TYPE_CONSTRAINTS): Redefine in terms of the above.
3693         * pt.c (tsubst) <case TEMPLATE_TYPE_PARM>: Use
3694         PLACEHOLDER_TYPE_CONSTRAINTS_INFO instead.
3695         (make_constrained_placeholder_type): Set
3696         PLACEHOLDER_TYPE_CONSTRAINTS_INFO instead.
3697         (do_auto_deduction): Clarify comments about the outer_targs
3698         parameter.  Rework satisfaction of a placeholder type constraint
3699         to pass in the complete set of template arguments directly to
3700         constraints_satisfied_p.
3701         (splice_late_return_type): Use PLACEHOLDER_TYPE_CONSTRAINTS_INFO
3702         instead.  Also rebuild the the constraint info on the new auto.
3704 2021-03-02  Patrick Palka  <ppalka@redhat.com>
3706         * constraint.cc (build_parameter_mapping): Rely on the caller to
3707         determine the in-scope template parameters.
3708         (norm_info::norm_info): Delegate the tsubst_flags_t constructor
3709         to the two-parameter constructor.  In the two-parameter
3710         constructor, fold in the definition of make_context, set
3711         initial_parms appropriately, and don't set the now-removed
3712         orig_decl member.
3713         (norm_info::make_context): Remove, now that its only use is
3714         inlined into the caller.
3715         (norm_info::update_context): Adjust call to
3716         build_parameter_mapping to pass in the relevant set of in-scope
3717         template parameters.
3718         (norm_info::ctx_parms): Define this member function.
3719         (norm_info::context): Initialize to NULL_TREE.
3720         (norm_info::orig_decl): Remove this data member.
3721         (norm_info::initial_parms): Define this data member.
3722         (normalize_atom): Adjust call to build_parameter_mapping to pass
3723         in the relevant set of in-scope template parameters.  Use
3724         info.initial_parms instead of info.orig_decl.
3725         (normalize_constraint_expression): Take a norm_info object
3726         instead of a bool.  Cache the result of normalization.
3727         (tsubst_nested_requirement): Call satisfy_constraint_expression
3728         instead of satisfy_constraint, so that we normalize on demand.
3729         (satisfy_constraint_expression): Handle a NESTED_REQ argument.
3730         Adjust call to normalize_constraint_expression.
3731         (finish_nested_requirement): Set the TREE_TYPE of the NESTED_REQ
3732         to current_template_parms.
3733         (diagnose_nested_requirements): Go through
3734         satisfy_constraint_expression, as with tsubst_nested_requirement.
3736 2021-03-02  Patrick Palka  <ppalka@redhat.com>
3738         * constraint.cc (tsubst_parameter_mapping): Canonicalize the
3739         arguments of a substituted TYPE_ARGUMENT_PACK even if we've
3740         started with a TYPE_ARGUMENT_PACK.
3741         (finish_requires_expr): Don't set DECL_CONTEXT and
3742         CONSTRAINT_VAR_P on each of the introduced parameters here.
3743         * parser.c (cp_parser_requirement_parameter_list): Instead set
3744         these fields earlier, here.
3745         * pt.c (do_auto_deduction): Canonicalize the result of
3746         do_auto_deduction.  Pass 'complain' to finish_decltype_type.
3748 2021-03-02  Patrick Palka  <ppalka@redhat.com>
3750         * constraint.cc (tsubst_simple_requirement): Just return
3751         boolean_true_node on success.
3752         (tsubst_type_requirement): Likewise.
3753         (tsubst_compound_requirement): Likewise.
3754         (tsubst_nested_requirement): Likewise.
3755         (tsubst_requirement_body): Remove.
3756         (check_constaint_variables): Rename to ...
3757         (check_constraint_variables): ... this.
3758         (tsubst_constraint_variables): Adjust.
3759         (tsubst_requires_expr): Fold tsubst_requirement_body into here.
3761 2021-03-01  Nathan Sidwell  <nathan@acm.org>
3763         PR c++/99294
3764         * class.c (fixup_type_variants): Propagate mode, precision,
3765         alignment & emptiness.
3766         * module.cc (trees_out::type_node): Use TYPE_ALIGN_RAW.
3767         (trees_in::tree_node): Rematerialize alignment here.
3769 2021-02-27  Jason Merrill  <jason@redhat.com>
3771         PR c++/90333
3772         * parser.c (cp_parser_lambda_declarator_opt): Accept GNU attributes
3773         between () and ->.
3775 2021-02-26  Jakub Jelinek  <jakub@redhat.com>
3777         * parser.c (cp_parser_lambda_declarator_opt): Implement
3778         P1102R2 - Down with ()! Make ()s optional before lambda specifiers
3779         for -std={c,gnu}++2b or with pedwarn in earlier versions.
3781 2021-02-26  Jakub Jelinek  <jakub@redhat.com>
3783         PR c++/95451
3784         * lambda.c (is_lambda_ignored_entity): Before checking for
3785         LAMBDA_FUNCTION_P, use OVL_FIRST.  Drop FUNCTION_DECL check.
3787 2021-02-26  Jason Merrill  <jason@redhat.com>
3789         PR c++/98810
3790         * pt.c (tsubst_copy) [VIEW_CONVERT_EXPR]: Add const
3791         to a class non-type template argument that needs it.
3793 2021-02-26  Patrick Palka  <ppalka@redhat.com>
3795         PR c++/98990
3796         * pt.c (splice_late_return_type): Rebuild the entire return type
3797         if we have to adjust the level of an auto within.
3798         (type_uses_auto): Adjust call to find_type_usage.
3799         * type-utils.h (find_type_usage): Revert r10-6571 change that
3800         made this function return a pointer to the auto node.
3802 2021-02-25  Patrick Palka  <ppalka@redhat.com>
3804         PR c++/99213
3805         PR c++/94521
3806         * error.c (dump_scope): Pass TFF_NO_TEMPLATE_BINDINGS instead of
3807         TFF_NO_FUNCTION_ARGUMENTS when dumping a function scope.
3809 2021-02-25  Patrick Palka  <ppalka@redhat.com>
3811         PR c++/99103
3812         * pt.c (is_spec_or_derived): Drop cv-qualifiers from 'etype'.
3813         (maybe_aggr_guide): Fix order of arguments to is_spec_or_derived.
3815 2021-02-25  Marek Polacek  <polacek@redhat.com>
3817         DR 1312
3818         PR c++/99176
3819         * constexpr.c (is_std_construct_at): New overload.
3820         (is_std_allocator_allocate): New overload.
3821         (cxx_eval_call_expression): Use the new overloads.
3822         (cxx_eval_constant_expression): Reject casting
3823         from void * as per DR 1312.  Don't check can_convert.
3825 2021-02-25  Iain Sandoe  <iain@sandoe.co.uk>
3827         PR c++/97587
3828         * coroutines.cc (struct param_info): Track rvalue refs.
3829         (morph_fn_to_coro): Track rvalue refs, and call the promise
3830         CTOR with the frame copy of passed parms.
3832 2021-02-25  Iain Sandoe  <iain@sandoe.co.uk>
3834         PR c++/95822
3835         * coroutines.cc (morph_fn_to_coro): Unconditionally remove any
3836         set throwing_cleanup marker.
3838 2021-02-25  Nathan Sidwell  <nathan@acm.org>
3840         PR c++/99166
3841         * module.cc (module_state::inform_cmi_p): Renamed field.
3842         (module_state::do_import): Adjust.
3843         (init_modules, finish_module_processing): Likewise.
3844         (handle_module_option): Likewise.
3846 2021-02-25  Nathan Sidwell  <nathan@acm.org>
3848         PR c++/98318
3849         * mapper-client.cc (module_client::open_module_client): Fix typo
3850         of fd init.
3852 2021-02-24  Nathan Sidwell  <nathan@acm.org>
3854         PR c++/98718
3855         * module.cc (ool): New indirection vector.
3856         (loc_spans::maybe_propagate): Location is not optional.
3857         (loc_spans::open): Likewise.  Assert monotonically advancing.
3858         (module_for_ordinary_loc): Use ool indirection vector.
3859         (module_state::write_prepare_maps): Do not count empty macro
3860         expansions.  Elide empty spans.
3861         (module_state::write_macro_maps): Skip empty expansions.
3862         (ool_cmp): New qsort comparator.
3863         (module_state::write): Create and destroy ool vector.
3864         (name_pending_imports): Fix dump push/pop.
3865         (preprocess_module): Likewise.  Add more dumping.
3866         (preprocessed_module): Likewise.
3868 2021-02-24  Iain Sandoe  <iain@sandoe.co.uk>
3870         PR c++/96251
3871         * coroutines.cc (coro_common_keyword_context_valid_p): Suppress
3872         error reporting when instantiating for a constexpr.
3874 2021-02-23  Nathan Sidwell  <nathan@acm.org>
3876         PR c++/99208
3877         * decl.c (name_unnamed_type): Check DECL identity, not IDENTIFIER
3878         identity.
3880 2021-02-23  Patrick Palka  <ppalka@redhat.com>
3882         PR c++/95468
3883         * pt.c (tsubst_copy_and_build) <case BASELINK>: New case, copied
3884         over from tsubst_copy.
3886 2021-02-23  Patrick Palka  <ppalka@redhat.com>
3888         * pt.c (instantiation_dependent_expression_p): Check
3889         processing_template_decl before calling
3890         potential_constant_expression.
3892 2021-02-22  Nathan Sidwell  <nathan@acm.org>
3894         PR c++/99174
3895         * module.cc (struct module_state): Add visited_p flag.
3896         (name_pending_imports): Use it to avoid duplicate requests.
3897         (preprocess_module): Don't read preprocessor state if we failed to
3898         load a module's config.
3900 2021-02-22  Nathan Sidwell  <nathan@acm.org>
3902         PR c++/99153
3903         * decl.c (duplicate_decls): Move DECL_MODULE_IMPORT_P propagation
3904         to common-path.
3905         * module.cc (set_defining_module): Add assert.
3907 2021-02-19  Nathan Sidwell  <nathan@acm.org>
3909         PR c++/98741
3910         * module.cc (pending_imports): New.
3911         (declare_module): Adjust test condition.
3912         (name_pending_imports): New.
3913         (preprocess_module): Reimplement using pending_imports.
3914         (preprocessed_module): Move name-getting to name_pending_imports.
3915         * name-lookup.c (append_imported_binding_slot): Assert module
3916         ordering is increasing.
3918 2021-02-19  Nathan Sidwell  <nathan@acm.org>
3920         * module.cc (note_cmis): New.
3921         (struct module_state): Add inform_read_p bit.
3922         (module_state::do_import): Inform of CMI location, if enabled.
3923         (init_modules): Canonicalize note_cmis entries.
3924         (handle_module_option): Handle -flang-info-module-read=FOO.
3926 2021-02-19  Jason Merrill  <jason@redhat.com>
3928         PR c++/96926
3929         * call.c (perfect_conversion_p): Limit rvalueness
3930         test to reference bindings.
3932 2021-02-19  Jason Merrill  <jason@redhat.com>
3934         PR c++/96926
3935         * call.c (perfect_conversion_p): New.
3936         (perfect_candidate_p): New.
3937         (add_candidates): Ignore templates after a perfect non-template.
3939 2021-02-18  Nathan Sidwell  <nathan@acm.org>
3941         PR c++/99023
3942         * module.cc (canonicalize_header_name): Use
3943         cpp_probe_header_unit.
3944         (maybe_translate_include): Fix note_includes comparison.
3945         (init_modules): Fix note_includes string termination.
3947 2021-02-18  Jakub Jelinek  <jakub@redhat.com>
3949         PR c++/99132
3950         * cp-gimplify.c (cp_genericize_r) <case CALL_EXPR>: Use
3951         cp_get_callee_fndecl_nofold instead of cp_get_callee_fndecl to check
3952         for immediate function calls.
3954 2021-02-17  Nathan Sidwell  <nathan@acm.org>
3956         PR c++/99023
3957         * module.cc (struct macro_export): Add GTY markers.
3958         (macro_exports): Likewise, us a va_gc Vector.
3960 2021-02-17  Jakub Jelinek  <jakub@redhat.com>
3962         PR sanitizer/99106
3963         * init.c (build_zero_init_1): For flexible array members just return
3964         NULL_TREE instead of returning empty CONSTRUCTOR with non-complete
3965         ARRAY_TYPE.
3967 2021-02-17  Nathan Sidwell  <nathan@acm.org>
3969         PR c++/99116
3970         * name-lookup.c (do_pushdecl): Don't peek under template_parm
3971         bindings here ...
3972         (set_identifier_type_value_with_scope): ... or here.
3973         (do_pushtag): Only set_identifier_type_value_with_scope at
3974         non-class template parm scope, and use parent scope.
3976 2021-02-17  Nathan Sidwell  <nathan@acm.org>
3978         PR c++/99071
3979         * name-lookup.c (maybe_record_mergeable_decl): Deref the correct
3980         pointer.
3982 2021-02-17  Patrick Palka  <ppalka@redhat.com>
3984         PR debug/96997
3985         PR c++/94034
3986         * tree.c (build_aggr_init_expr): Revert r10-7718 change.
3988 2021-02-12  Nathan Sidwell  <nathan@acm.org>
3990         * module.cc (module_state::write_cluster): Check bindings for
3991         imported using-decls.
3993 2021-02-12  Nathan Sidwell  <nathan@acm.org>
3995         PR c++/99040
3996         * module.cc (trees_in::decl_value): Call add_module_namespace_decl
3997         for new namespace-scope entities.
3998         (module_state::read_cluster): Don't call add_module_decl here.
3999         * name-lookup.h (add_module_decl): Rename to ...
4000         (add_module_namespace_decl): ... this.
4001         * name-lookup.c (newbinding_bookkeeping): Move into ...
4002         (do_pushdecl): ... here.  Its only remaining caller.
4003         (add_module_decl): Rename to ...
4004         (add_module_namespace_decl): ... here.  Add checking-assert for
4005         circularity. Don't call newbinding_bookkeeping, just extern_c
4006         checking and incomplete var checking.
4008 2021-02-12  Nathan Sidwell  <nathan@acm.org>
4010         PR c++/99039
4011         PR c++/99040
4012         * cp-tree.h (CPTI_GLOBAL_TYPE): Delete.
4013         (global_type_node): Delete.
4014         (IDENTIFIER_TYPE_VALUE): Delete.
4015         (IDENTIFIER_HAS_TYPE_VALUE): Delete.
4016         (get_type_value): Delete.
4017         * name-lookup.h (identifier_type_value): Delete.
4018         * name-lookup.c (check_module_override): Don't
4019         SET_IDENTIFIER_TYPE_VALUE here.
4020         (do_pushdecl): Nor here.
4021         (identifier_type_value_1, identifier_type_value): Delete.
4022         (set_identifier_type_value_with_scope): Only
4023         SET_IDENTIFIER_TYPE_VALUE for local and class scopes.
4024         (pushdecl_nanmespace_level): Remove shadow stack nadgering.
4025         (do_pushtag): Use REAL_IDENTIFIER_TYPE_VALUE.
4026         * call.c (check_dtor_name): Use lookup_name.
4027         * decl.c (cxx_init_decl_processing): Drop global_type_node.
4028         * decl2.c (cplus_decl_attributes): Don't SET_IDENTIFIER_TYPE_VALUE
4029         here.
4030         * init.c (get_type_value): Delete.
4031         * pt.c (instantiate_class_template_1): Don't call pushtag or
4032         SET_IDENTIFIER_TYPE_VALUE here.
4033         (tsubst): Assert never an identifier.
4034         (dependent_type_p): Drop global_type_node assert.
4035         * typeck.c (error_args_num): Don't use IDENTIFIER_HAS_TYPE_VALUE
4036         to determine ctorness.
4038 2021-02-12  Jakub Jelinek  <jakub@redhat.com>
4040         PR c++/97742
4041         * parser.c (cp_parser_requirement_seq): Stop iterating after reaching
4042         CPP_EOF.
4044 2021-02-12  Jason Merrill  <jason@redhat.com>
4046         PR c++/97246
4047         PR c++/94546
4048         * pt.c (extract_fnparm_pack): Check DECL_PACK_P here.
4049         (register_parameter_specializations): Not here.
4051 2021-02-11  Marek Polacek  <polacek@redhat.com>
4053         PR c++/95888
4054         * pt.c (lookup_template_class_1): Pass tf_none to tsubst when looking
4055         for the partial instantiation.
4057 2021-02-11  Jakub Jelinek  <jakub@redhat.com>
4059         PR c++/99033
4060         * init.c (build_zero_init_1): Handle zero initialiation of
4061         flexible array members like initialization of [0] arrays.
4062         Use integer_minus_onep instead of comparison to integer_minus_one_node
4063         and integer_zerop instead of comparison against size_zero_node.
4064         Formatting fixes.
4066 2021-02-11  Marek Polacek  <polacek@redhat.com>
4068         PR c++/99063
4069         * semantics.c (finish_do_stmt): Check for unexpanded parameter packs.
4071 2021-02-11  Patrick Palka  <ppalka@redhat.com>
4073         PR c++/97582
4074         * name-lookup.c (op_unqualified_lookup): Handle an ambiguous
4075         lookup result by discarding it if the first element is a
4076         class-scope declaration, otherwise return it.
4077         (push_operator_bindings): Handle an ambiguous lookup result by
4078         doing push_local_binding on each element in the list.
4080 2021-02-11  Marek Polacek  <polacek@redhat.com>
4082         * parser.c (cp_parser_selection_statement): Use vec_free.
4084 2021-02-10  Jakub Jelinek  <jakub@redhat.com>
4086         PR c++/98988
4087         PR c++/99031
4088         * constexpr.c: Include cgraph.h.
4089         (cxx_eval_call_expression): Call varpool_node::finalize_decl on
4090         heap artificial vars.
4091         (cxx_eval_outermost_constant_expr): Remove varpool nodes for
4092         heap artificial vars.
4094 2021-02-10  Nathan Sidwell  <nathan@acm.org>
4096         PR c++/99030
4097         * pt.c (tsubst_copy) [VAR_DECL]: For a DECL_LOCAL_DECL_P T is the
4098         answer if there's no local specialization.
4100 2021-02-09  Nathan Sidwell  <nathan@acm.org>
4102         PR c++/98944
4103         * module.cc (module_state::is_rooted): Rename to ...
4104         (module_state::has_location): ... here.  Adjust callers.
4105         (module_state::read_partitions): Adjust validity check.
4106         Don't overwrite a known location.
4108 2021-02-09  Jason Merrill  <jason@redhat.com>
4110         PR c++/96905
4111         * pt.c (mark_decl_instantiated): Exit early if consteval.
4113 2021-02-09  Jason Merrill  <jason@redhat.com>
4115         PR c++/98326
4116         PR c++/20408
4117         * cp-gimplify.c (simple_empty_class_p): Don't touch an invisiref
4118         parm.
4120 2021-02-09  Jason Merrill  <jason@redhat.com>
4122         PR c++/98994
4123         PR c++/97566
4124         * constexpr.c (cxx_eval_store_expression): Only skip empty fields in
4125         RECORD_TYPE.
4127 2021-02-08  Nathan Sidwell  <nathan@acm.org>
4129         * decl.c (start_cleanup_fn): Push function into
4130         namespace.
4132 2021-02-08  Nathan Sidwell  <nathan@acm.org>
4134         PR c++/98531
4135         * cp-tree.h (push_abi_namespace, pop_abi_namespace): Declare.
4136         * decl.c (push_abi_namespace, pop_abi_namespace): Moved
4137         from rtti.c, add default namespace arg.
4138         (check_redeclaration_exception_specification): Allow a lazy
4139         builtin's eh spec to differ from an lready-declared user
4140         declaration.
4141         (declare_global_var): Use push/pop_abi_namespace.
4142         (get_atexit_node): Push the fndecl into a namespace.
4143         * rtti.c (push_abi_namespace, pop_abi_namespace): Moved to
4144         decl.c.
4146 2021-02-08  Marek Polacek  <polacek@redhat.com>
4148         * cp-tree.h (CLASSTYPE_TI_TEMPLATE): Fix typo.
4150 2021-02-05  Marek Polacek  <polacek@redhat.com>
4152         PR c++/98947
4153         * call.c (build_conditional_expr_1): Don't call mark_lvalue_use
4154         on arg2/arg3.
4155         * expr.c (mark_use) <case MODIFY_EXPR>: Don't check read_p when
4156         issuing the -Wvolatile warning.  Only set TREE_THIS_VOLATILE if
4157         a warning was emitted.
4159 2021-02-05  Marek Polacek  <polacek@redhat.com>
4161         PR c++/96462
4162         * name-lookup.c (lookup_using_decl): Hoist the destructor check.
4164 2021-02-05  Jakub Jelinek  <jakub@redhat.com>
4166         PR c++/97878
4167         * decl.c (check_array_initializer): For structured bindings, require
4168         the array type to be complete.
4170 2021-02-04  Jason Merrill  <jason@redhat.com>
4172         PR c++/98717
4173         * constraint.cc (build_concept_check_arguments): Remove assert.
4174         (build_concept_check): Allow empty args.
4176 2021-02-04  Tom Greenslade (thomgree)  <thomgree@cisco.com>
4178         PR c++/90926
4179         * call.c (can_convert_array): Extend to handle all valid aggregate
4180         initializers of an array; including by string literals, not just by
4181         brace-init-list.
4182         (build_aggr_conv): Call can_convert_array more often, not just in
4183         brace-init-list case.
4184         * typeck2.c (array_string_literal_compatible_p): New function.
4185         (digest_init_r): call array_string_literal_compatible_p
4186         * cp-tree.h: (array_string_literal_compatible_p): Declare.
4188 2021-02-04  Jason Merrill  <jason@redhat.com>
4190         PR c++/98802
4191         * pt.c (do_class_deduction): No aggregate guide if any_dguides_p.
4193 2021-02-04  Jason Merrill  <jason@redhat.com>
4195         PR c++/95192
4196         * pt.c (tsubst_attribute): Handle error.
4197         (apply_late_template_attributes): Return false on error.
4198         (tsubst_function_decl): Check its return value.
4199         (tsubst_decl): Likewise.
4200         (push_template_decl): Assert current_template_parms.
4201         (tsubst_template_decl): Set current_template_parms.
4203 2021-02-03  Marek Polacek  <polacek@redhat.com>
4205         PR c++/98951
4206         * call.c (struct z_candidate): Mark rewritten and reversed as const.
4207         (struct NonPublicField): Mark operator() as const.
4208         (struct NonTrivialField): Likewise.
4210 2021-02-03  Jason Merrill  <jason@redhat.com>
4212         PR c++/98926
4213         PR c++/98570
4214         * pt.c (spec_hasher::equal): Set processing_template_decl.
4215         * Make-lang.in (check-g++-strict-gc): Add --param
4216         hash-table-verification-limit=10000.
4218 2021-02-03  Marek Polacek  <polacek@redhat.com>
4220         PR c++/98899
4221         * parser.c (cp_parser_class_specifier_1): Use any possible
4222         DEFPARSE_INSTANTIATIONS to update DEFERRED_NOEXCEPT_PATTERN.
4223         (cp_parser_save_noexcept): Initialize DEFPARSE_INSTANTIATIONS.
4224         * pt.c (tsubst_exception_specification): Stash new_specs into
4225         DEFPARSE_INSTANTIATIONS.
4226         * tree.c (fixup_deferred_exception_variants): Use
4227         UNPARSED_NOEXCEPT_SPEC_P.
4229 2021-02-02  Jason Merrill  <jason@redhat.com>
4231         PR c++/98929
4232         PR c++/96199
4233         * error.c (dump_expr): Ignore dummy object.
4234         * pt.c (tsubst_baselink): Handle dependent scope.
4236 2021-02-01  Patrick Palka  <ppalka@redhat.com>
4238         PR c++/98295
4239         * constexpr.c (cxx_eval_array_reference): Also set
4240         new_ctx.object when setting new_ctx.ctor.
4242 2021-02-01  Marek Polacek  <polacek@redhat.com>
4244         PR c++/98355
4245         * parser.c (cp_parser_has_attribute_expression): Use
4246         uses_template_parms instead of type_dependent_expression_p.
4248 2021-02-01  Jason Merrill  <jason@redhat.com>
4250         PR c++/98570
4251         * cp-tree.h: Declare it.
4252         * pt.c (comparing_dependent_aliases): New flag.
4253         (template_args_equal, spec_hasher::equal): Set it.
4254         (dependent_alias_template_spec_p): Assert that we don't
4255         get non-types other than error_mark_node.
4256         (instantiate_alias_template): SET_TYPE_STRUCTURAL_EQUALITY
4257         on complex alias specializations.  Set TYPE_DEPENDENT_P here.
4258         (tsubst_decl): Not here.
4259         * module.cc (module_state::read_cluster): Set
4260         comparing_dependent_aliases instead of
4261         comparing_specializations.
4262         * tree.c (cp_tree_equal): Remove comparing_specializations
4263         module handling.
4264         * typeck.c (structural_comptypes): Adjust.
4265         (comptypes): Remove comparing_specializations handling.
4267 2021-01-29  Nathan Sidwell  <nathan@acm.org>
4269         PR c++/98843
4270         * module.cc (module_state_config): Add num_entities field.
4271         (module_state::read_entities): The entity_ary span is
4272         already allocated.
4273         (module_state::write_config): Write num_entities.
4274         (module_state::read_config): Read num_entities.
4275         (module_state::write): Set config's num_entities.
4276         (module_state::read_initial): Allocate the entity ary
4277         span here.
4278         (module_state::read_language): Do not set entity_lwm
4279         here.
4281 2021-01-29  Marek Polacek  <polacek@redhat.com>
4283         PR c++/96137
4284         * parser.c (cp_parser_class_name): If parser->scope is
4285         error_mark_node, return it, otherwise continue.
4287 2021-01-28  Jakub Jelinek  <jakub@redhat.com>
4289         PR c++/98841
4290         * typeck.c (build_x_indirect_ref): For *this, return current_class_ref.
4292 2021-01-28  Jakub Jelinek  <jakub@redhat.com>
4294         PR c++/33661
4295         PR c++/98847
4296         * decl.c (cp_finish_decl): For register vars with asmspec in templates
4297         call set_user_assembler_name and set DECL_HARD_REGISTER.
4298         * pt.c (tsubst_expr): When instantiating DECL_HARD_REGISTER vars,
4299         pass asmspec_tree to cp_finish_decl.
4301 2021-01-28  Nathan Sidwell  <nathan@acm.org>
4303         PR c++/98770
4304         * module.cc (trees_out::decl_value): Swap is_typedef & TYPE_NAME
4305         check order.
4306         (trees_in::decl_value): Do typedef frobbing only when installing
4307         a new typedef, adjust is_matching_decl call.  Swap is_typedef
4308         & TYPE_NAME check.
4309         (trees_in::is_matching_decl): Add is_typedef parm. Adjust variable
4310         names and deal with typedef checking.
4312 2021-01-27  Jason Merrill  <jason@redhat.com>
4314         PR c++/97874
4315         * name-lookup.c (lookup_using_decl): Clean up handling
4316         of dependency and inherited constructors.
4317         (finish_nonmember_using_decl): Handle DECL_DEPENDENT_P.
4318         * pt.c (tsubst_expr): Handle DECL_DEPENDENT_P.
4320 2021-01-26  Jason Merrill  <jason@redhat.com>
4322         PR c++/97474
4323         * call.c (type_passed_as): Don't mark invisiref restrict.
4325 2021-01-26  Jason Merrill  <jason@redhat.com>
4327         PR c++/97566
4328         PR c++/98463
4329         * class.c (layout_class_type): An empty field gets size 0.
4330         (is_empty_field): New.
4331         (check_bases): Check it.
4332         * cp-tree.h (is_empty_field): Declare it.
4333         * constexpr.c (cxx_eval_store_expression): Check it.
4334         (cx_check_missing_mem_inits): Likewise.
4335         * init.c (perform_member_init): Likewise.
4336         * typeck2.c (process_init_constructor_record): Likewise.
4338 2021-01-25  Martin Sebor  <msebor@redhat.com>
4340         PR c++/98646
4341         * cvt.c (cp_fold_convert): Propagate TREE_NO_WARNING.
4343 2021-01-25  Jason Merrill  <jason@redhat.com>
4345         PR c++/98463
4346         * constexpr.c (get_or_insert_ctor_field): Add check.
4347         (cxx_eval_store_expression): Handle discontinuity of refs.
4349 2021-01-23  Anthony Sharp  <anthonysharp15@gmail.com>
4351         * call.c (complain_about_access): Altered function.
4352         * cp-tree.h (complain_about_access): Changed parameters of function.
4353         (get_parent_with_private_access): Declared new function.
4354         * search.c (get_parent_with_private_access): Defined new function.
4355         * semantics.c (enforce_access): Modified function.
4356         * typeck.c (complain_about_unrecognized_member): Updated function
4357         arguments in complain_about_access.
4359 2021-01-23  Patrick Palka  <ppalka@redhat.com>
4361         PR c++/97399
4362         * cp-tree.h (shared_member_p): Adjust declaration.
4363         * parser.c (cp_parser_init_declarator): If the storage class
4364         specifier is sc_static, pass true for static_p to
4365         cp_parser_declarator.
4366         (cp_parser_direct_declarator): Don't do inject_this_parm when
4367         the declarator is a friend.
4368         * search.c (shared_member_p): Change return type to bool and
4369         adjust function body accordingly.  Return false for a dependent
4370         USING_DECL instead of aborting.
4371         * semantics.c (finish_qualified_id_expr): Rely on shared_member_p
4372         even when type-dependent.
4374 2021-01-22  Marek Polacek  <polacek@redhat.com>
4376         PR c++/96623
4377         * parser.c (inject_parm_decls): Remove a redundant assignment.
4378         (cp_parser_class_specifier_1): Clear current_class_{ptr,ref}
4379         before calling inject_parm_decls.
4381 2021-01-22  Jason Merrill  <jason@redhat.com>
4383         PR c++/98744
4384         * call.c (make_base_init_ok): Use DECL_HAS_VTT_PARM_P.
4386 2021-01-22  Jakub Jelinek  <jakub@redhat.com>
4388         PR sanitizer/95693
4389         * init.c (build_zero_init_1): Revert the 2018-03-06 change to
4390         return build_zero_cst for reference types.
4391         * typeck2.c (process_init_constructor_record): Instead call
4392         build_zero_cst here during error recovery instead of build_zero_init.
4394 2021-01-22  Marek Polacek  <polacek@redhat.com>
4396         PR c++/98545
4397         * mangle.c (write_member_name): Emit abi_warn_or_compat_version_crosses
4398         warnings regardless of abi_version_at_least.
4399         (write_expression): When the expression is a dependent name
4400         and an operator name, write "on" before writing its name.
4402 2021-01-22  Marek Polacek  <polacek@redhat.com>
4404         PR c++/97966
4405         * pt.c (instantiate_class_template_1): Instantiate members
4406         marked with attribute used only after we're done instantiating
4407         the class.
4409 2021-01-21  Patrick Palka  <ppalka@redhat.com>
4411         PR c++/71879
4412         * semantics.c (finish_decltype_type): Set up a cp_unevaluated
4413         sentinel at the start of the function.  Remove a now-redundant
4414         manual adjustment of cp_unevaluated_operand.
4416 2021-01-21  Nathan Sidwell  <nathan@acm.org>
4418         PR c++/98624
4419         * module.cc (depset::hash::find_dependencies): Add
4420         module arg.
4421         (trees_out::core_vals): Check state before calling
4422         write_location.
4423         (sort_cluster, module_state::write): Adjust
4424         find_dependencies call.
4426 2021-01-21  Jakub Jelinek  <jakub@redhat.com>
4428         PR c++/98672
4429         * constexpr.c (check_for_return_continue_data): Add break_stmt member.
4430         (check_for_return_continue): Also look for BREAK_STMT.  Handle
4431         SWITCH_STMT by ignoring break_stmt from its body.
4432         (potential_constant_expression_1) <case FOR_STMT>,
4433         <case WHILE_STMT>: If the condition isn't constant true, check if
4434         the loop body can contain a return stmt.
4435         <case SWITCH_STMT>: Adjust check_for_return_continue_data initializer.
4436         <case IF_STMT>: If recursion with tf_none is successful,
4437         merge *jump_target from the branches - returns with highest priority,
4438         breaks or continues lower.  If then branch is potentially constant and
4439         doesn't return, check the else branch if it could return, break or
4440         continue.
4442 2021-01-21  Nathan Sidwell  <nathan@acm.org>
4444         PR c++/98530
4445         * name-lookup.c (lookup_class_binding): Rearrange a stat-hack.
4447 2021-01-20  Nathan Sidwell  <nathan@acm.org>
4449         * module.cc (bytes_in::i, bytes_in::wi): Avoid left shift of
4450         signed type.
4452 2021-01-20  Patrick Palka  <ppalka@redhat.com>
4454         PR c++/95434
4455         * pt.c (tsubst) <case TEMPLATE_TYPE_PARM>: If tsubsting
4456         CLASS_PLACEHOLDER_TEMPLATE yields a TEMPLATE_TEMPLATE_PARM,
4457         adjust to its TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL.
4459 2021-01-20  Patrick Palka  <ppalka@redhat.com>
4461         PR c++/82613
4462         * parser.c (cp_parser_class_head): Defer access checking when
4463         parsing the base-clause until all bases are seen and attached
4464         to the class type.
4465         * pt.c (instantiate_class_template): Likewise when substituting
4466         into dependent bases.
4468 2021-01-20  Jakub Jelinek  <jakub@redhat.com>
4470         PR c++/98742
4471         * semantics.c (finish_omp_clauses) <case OMP_CLAUSE_DETACH>: If
4472         error_operand_p, remove clause without further checking.  Check
4473         for non-NULL TYPE_NAME.
4475 2021-01-19  Marek Polacek  <polacek@redhat.com>
4477         PR c++/98659
4478         * pt.c (maybe_instantiate_noexcept): Return false if FN is
4479         error_mark_node.
4481 2021-01-19  Marek Polacek  <polacek@redhat.com>
4483         PR c++/98687
4484         * name-lookup.c (push_using_decl_bindings): New, broken out of...
4485         (finish_nonmember_using_decl): ...here.
4486         * name-lookup.h (push_using_decl_bindings): Update declaration.
4487         * pt.c (tsubst_expr): Update the call to push_using_decl_bindings.
4489 2021-01-19  Patrick Palka  <ppalka@redhat.com>
4491         PR c++/41437
4492         PR c++/58993
4493         * search.c (friend_accessible_p): If scope is a hidden friend
4494         defined inside a dependent class, consider access from the
4495         class.
4496         * parser.c (cp_parser_late_parsing_for_member): Don't push a
4497         dk_no_check access state.
4499 2021-01-19  Marek Polacek  <polacek@redhat.com>
4501         PR c++/98333
4502         * parser.c (cp_parser_class_specifier_1): Perform late-parsing
4503         of NSDMIs before late-parsing of noexcept-specifiers.
4505 2021-01-19  Nathan Sidwell  <nathan@acm.org>
4507         * module.cc (identifier): Merge overloads.
4509 2021-01-19  Nathan Sidwell  <nathan@acm.org>
4511         PR c++/98624
4512         * module.cc (trees_out::write_location): Make static.
4514 2021-01-16  Kwok Cheung Yeung  <kcy@codesourcery.com>
4516         * parser.c (cp_parser_omp_clause_detach): New.
4517         (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DETACH.
4518         (OMP_TASK_CLAUSE_MASK): Add mask for PRAGMA_OMP_CLAUSE_DETACH.
4519         * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_DETACH clause.
4520         * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_DETACH clause.
4521         Prevent use of detach with mergeable and overriding the data sharing
4522         mode of the event handle.
4524 2021-01-15  Nathan Sidwell  <nathan@acm.org>
4526         PR c++/98538
4527         * tree.c (cp_build_qualified_type_real): Propagate an array's
4528         dependentness to the copy, if known.
4530 2021-01-15  Jason Merrill  <jason@redhat.com>
4532         PR c++/98642
4533         * call.c (unsafe_return_slot_p): Return int.
4534         (init_by_return_slot_p): Split out from...
4535         (unsafe_copy_elision_p): ...here.
4536         (unsafe_copy_elision_p_opt): New name for old meaning.
4537         (build_over_call): Adjust.
4538         (make_safe_copy_elision): New.
4539         * typeck2.c (split_nonconstant_init_1): Elide copy from safe
4540         list-initialization.
4541         * cp-tree.h: Adjust.
4543 2021-01-15  Jason Merrill  <jason@redhat.com>
4545         * call.c (base_ctor_for, make_base_init_ok): New.
4546         (build_over_call): Use make_base_init_ok.
4548 2021-01-15  Jason Merrill  <jason@redhat.com>
4550         PR c++/63707
4551         * tree.c (build_vec_init_expr): Don't call build_vec_init_elt
4552         if we got a CONSTRUCTOR.
4554 2021-01-15  Nathan Sidwell  <nathan@acm.org>
4556         PR c++/98591
4557         * lang-specs.h: Fix handling of -fmodule-only with -fsyntax-only.
4559 2021-01-14  Jason Merrill  <jason@redhat.com>
4561         * typeck2.c (process_init_constructor_record): Use fldtype
4562         variable consistently.
4564 2021-01-14  Nathan Sidwell  <nathan@acm.org>
4566         PR c++/98372
4567         * tree.c (cp_tree_equal): Correct map_context logic.
4569 2021-01-13  Marek Polacek  <polacek@redhat.com>
4571         PR c++/98231
4572         * name-lookup.c (push_using_decl_bindings): New.
4573         * name-lookup.h (push_using_decl_bindings): Declare.
4574         * pt.c (tsubst_expr): Call push_using_decl_bindings.
4576 2021-01-13  Nathan Sidwell  <nathan@acm.org>
4578         PR c++/98626
4579         * module.cc (module_add_import_initializers):  Pass a
4580         zero-element argument vector.
4582 2021-01-12  Patrick Palka  <ppalka@redhat.com>
4584         PR c++/98611
4585         * tree.c (cp_walk_subtrees) <case TEMPLATE_TYPE_PARM>: Visit
4586         the template of a CTAD placeholder.
4588 2021-01-12  Marek Polacek  <polacek@redhat.com>
4590         PR c++/98620
4591         * typeck2.c (process_init_constructor_record): Don't emit
4592         -Wmissing-field-initializers warnings in unevaluated contexts.
4594 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
4596         PR c++/98481
4597         * class.c (find_abi_tags_r): Set *walk_subtrees to 2 instead of 1
4598         for types.
4599         (mark_abi_tags_r): Likewise.
4600         * decl2.c (min_vis_r): Likewise.
4601         * tree.c (cp_walk_subtrees): If *walk_subtrees_p is 2, look through
4602         typedefs.
4604 2021-01-08  Patrick Palka  <ppalka@redhat.com>
4606         PR c++/98551
4607         * constexpr.c (cxx_eval_call_expression): Check CLASS_TYPE_P
4608         instead of AGGREGATE_TYPE_P before calling replace_result_decl.
4610 2021-01-08  Patrick Palka  <ppalka@redhat.com>
4612         PR c++/98515
4613         * semantics.c (check_accessibility_of_qualified_id): Punt if
4614         we're checking access of a scoped non-static member inside a
4615         class template.
4617 2021-01-07  Jakub Jelinek  <jakub@redhat.com>
4619         PR c++/98329
4620         * pt.c (tsubst_copy) <case BIT_CAST_EXPR>: Don't call
4621         cp_build_bit_cast here, instead just build_min a BIT_CAST_EXPR and set
4622         its location.
4623         (tsubst_copy_and_build): Handle BIT_CAST_EXPR.
4625 2021-01-07  Marek Polacek  <polacek@redhat.com>
4627         PR c++/98441
4628         * decl.c (grokdeclarator): Move the !funcdecl_p check inside the
4629         !late_return_type block.
4631 2021-01-07  Jason Merrill  <jason@redhat.com>
4633         * constexpr.c (cxx_bind_parameters_in_call): Add comment.
4634         (cxx_eval_store_expression): Add comment.
4636 2021-01-07  Jason Merrill  <jason@redhat.com>
4638         * call.c (has_next): Factor out from...
4639         (next_conversion): ...here.
4640         (strip_standard_conversion): And here.
4641         (is_subseq): And here.
4642         (build_conv): Check it.
4643         (standard_conversion): Don't call build_conv
4644         for ck_identity.
4646 2021-01-06  Martin Sebor  <msebor@redhat.com>
4648         PR c++/95768
4649         * error.c (dump_expr): Call c_pretty_printer::unary_expression.
4651 2021-01-05  Patrick Palka  <ppalka@redhat.com>
4653         * pt.c (unify) <case TEMPLATE_PARM_INDEX>: After walking into
4654         the type of the NTTP, substitute into the type again.  If the
4655         type is still dependent, don't unify the NTTP.
4657 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
4659         * Make-lang.in (cc1plus-checksum, cc1plus$(exeext): Add
4660         $(CODYLIB) after $(BACKEND).
4662 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
4664         PR c++/98469
4665         * constexpr.c (cxx_eval_constant_expression) <case BIT_CAST_EXPR>:
4666         Punt if lval is true.
4667         * semantics.c (cp_build_bit_cast): Call get_target_expr_sfinae on
4668         the result if it has a class type.
4670 2021-01-05  Marek Polacek  <polacek@redhat.com>
4672         PR c++/82099
4673         * pt.c (resolve_overloaded_unification): Call
4674         maybe_instantiate_noexcept after instantiating the function
4675         decl.
4677 2021-01-05  Nathan Sidwell  <nathan@acm.org>
4679         * parser.c (cp_parser_module_declaration): Alter diagnostic
4680         text to say where is permissable.
4682 2021-01-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
4684         PR c++/98316
4685         * Make-lang.in (cc1plus$(exeext)): Add $(CODYLIB), $(NETLIBS).
4687 2021-01-02  Jan Hubicka  <jh@suse.cz>
4689         * cp-tree.h (cp_tree_c_finish_parsing): Declare.
4690         * decl2.c (c_parse_final_cleanups): Call cp_tree_c_finish_parsing.
4691         * tree.c (cp_tree_c_finish_parsing): New function.
4693 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
4695         * ChangeLog-2020: Rotate ChangeLog.  New file.
4698 Copyright (C) 2021 Free Software Foundation, Inc.
4700 Copying and distribution of this file, with or without modification,
4701 are permitted in any medium without royalty provided the copyright
4702 notice and this notice are preserved.