1 2019-12-03 Jakub Jelinek <jakub@redhat.com>
4 * typeck2.c (digest_nsdmi_init): For bitfields, use
5 DECL_BIT_FIELD_TYPE instead of TREE_TYPE.
7 2019-12-03 Jason Merrill <jason@redhat.com>
8 Jakub Jelinek <jakub@redhat.com>
11 * call.c (strip_standard_conversion): New function.
12 (build_new_op_1): Use it for user_conv_p.
13 (compare_ics): Likewise.
14 (source_type): Likewise.
16 2019-12-03 Jakub Jelinek <jakub@redhat.com>
19 * constexpr.c (cxx_bind_parameters_in_call): For virtual calls,
20 adjust the first argument to point to the derived object rather
23 2019-12-02 Jakub Jelinek <jakub@redhat.com>
26 * constexpr.c (cxx_eval_constant_expression) <case OBJ_TYPE_REF>: Use
27 STRIP_NOPS before checking for ADDR_EXPR.
29 2019-11-29 Jakub Jelinek <jakub@redhat.com>
32 * parser.c (cp_parser_omp_declare_reduction_exprs): If
33 processing_template_decl, wrap the combiner or initializer
35 * decl.c (start_preparsed_function): Don't start a lambda scope
36 for DECL_OMP_DECLARE_REDUCTION_P functions.
37 (finish_function): Don't finish a lambda scope for
38 DECL_OMP_DECLARE_REDUCTION_P functions, nor cp_fold_function
39 them nor cp_genericize them.
40 * mangle.c (decl_mangling_context): Look through
41 DECL_OMP_DECLARE_REDUCTION_P functions.
42 * semantics.c (expand_or_defer_fn_1): For DECL_OMP_DECLARE_REDUCTION_P
43 functions, use tentative linkage, don't keep their bodies with
44 -fkeep-inline-functions and return false at the end.
46 2019-11-28 Jakub Jelinek <jakub@redhat.com>
49 * decl2.c (mark_used): Don't call note_vague_linkage_fn for pure
50 virtual functions, even if they are declared inline.
52 2019-11-16 Jason Merrill <jason@redhat.com>
54 Implement P1814R0, CTAD for alias templates.
55 * pt.c (rewrite_tparm_list): Factor out of build_deduction_guide.
56 (maybe_aggr_guide): Check for copy-init here.
57 (alias_ctad_tweaks, deduction_guides_for): New.
58 (ctor_deduction_guides_for): Factor out of do_class_deduction.
59 (ctad_template_p): New.
60 * parser.c (cp_parser_simple_type_specifier): Use it.
61 * constraint.cc (append_constraint): New.
63 2019-11-16 Jason Merrill <jason@redhat.com>
65 * cxx-pretty-print.c (pp_cxx_unqualified_id): Handle alias
67 * pt.c (complex_alias_template_p): True if constraints.
68 (get_underlying_template, tsubst): Check alias constraints.
69 (push_template_decl_real): Set alias constraints here.
70 * parser.c (cp_parser_alias_declaration): Not here.
71 * constraint.cc (get_constraints): Take const_tree.
73 2019-11-12 Jason Merrill <jason@redhat.com>
75 PR c++/92206 - ICE with typedef to dependent alias.
76 * pt.c (dependent_alias_template_spec_p)
77 (alias_template_specialization_p): Add transparent_typedefs
79 (iterative_hash_template_arg, any_template_parm_r)
80 (primary_template_specialization_p, tsubst, dependent_type_p_r):
82 * decl.c (check_elaborated_type_specifier): Adjust.
83 * error.c (dump_template_bindings, dump_aggr_type): Adjust.
85 2019-11-27 Andrew Sutton <asutton@lock3software.com>
88 Defer evaluation of concept checks so that static assertions can
89 emit more detailed diagnostics.
90 * constexpr.c (cxx_eval_call_expression): Handle concept checks.
91 (cxx_eval_constant_expression): Diagnose misuse of function concepts
92 as template-id expressions. Follow the usual return path for results.
93 (cxx_eval_outermost_constant_expr): Avoid calling
94 cp_get_callee_fndecl_nofold for function concepts.
95 * constraint.cc (build_function_check): Fully type the concept check
96 so that we don't ICE in conversions.
97 * cp-gimplify.c (cp_genericize_r) [CALL_EXPR]: Handle concept checks.
98 [TEMPLATE_ID_EXPR] Likewise.
99 * cvt.c (convert_to_void): Always evaluate concept checks so we don't
100 accidentally ignore them. Substitution during satisfaction can make
101 a program ill-formed (example in g++.dg/cpp2a/concepts6.C).
102 * pt.c (tsubst_copy_and_build): [CALL_EXPR]: Don't evaluate concepts.
103 [TEMPLATE_ID_EXPR]: Likewise.
104 * semantics.c (finish_call_expr): Don't evaluate concepts.
105 (finish_id_expression_1): Likewise.
106 (finish_static_assert): Preserve the original condition so we can
107 diagnose concept errors when a check returns false.
109 2019-11-27 Andrew Sutton <asutton@lock3software.com>
112 Improve quality of diagnostics for subexpressions that need parens.
113 * parser.c (cp_parser_requires_clause_opt): Add a flag to indicate
114 when parsing a requires-clause before lambda parameters, and...
115 (cp_parser_lambda_declarator_opt): ... use that here ...
116 (cp_parser_type_parameter): ... and here ...
117 (cp_parser_late_return_type_opt): ... and here ...
118 (cp_parser_explicit_template_declaration): ... and here.
119 (cp_parser_diagnose_ungrouped_constraint_plain): Adjust the message
120 because this can apply to subexpressions that are not immediately
121 after a requires-clause.
122 (cp_parser_diagnose_ungrouped_constraint_rich): Likewise.
123 (primary_constraint_error): New.
124 (cp_parser_constraint_requires_parens): New.
125 (cp_parser_unary_constraint_requires_parens): New.
126 (cp_parser_constraint_primary_expression): Check for unary expressions
127 before parsing the primary expression. Also check for binary and
128 postfix operators after a successful parse of the primary expression.
129 Force a re-parse if the result would form a lower-precedence string.
130 (cp_parser_constraint_logical_and_expression): Propagate lambda flag;
131 move checks for ill-formed constraints into the constraint primary
133 (cp_parser_constraint_logical_or_expression): Likewise.
134 (cp_parser_requires_clause_expression): Propagate lambda flag.
136 2019-11-27 Andrew Sutton <asutton@lock3software.com>
139 * constraint.cc (satisfy_declaration_constraints): Push tinst levels
142 2019-11-27 Andrew Sutton <asutton@lock3software.com>
144 Diagnose certain constraint errors as hard errors, but otherwise treat
145 them the same as normal SFINAE-type errors. Also, generally clean up
146 the satisfaction functions.
148 * constexpr.c (cxx_eval_constant_expression): Use
149 evaluate_concept_check.
150 * constraint.cc (normalize_concept_definition): Accept a diagnostic
151 flag and only cache when not diagnosing errors.
152 (decl_satisfied_cache): Map to trees instead of bools.
153 (satisfy_atom): Guarantee a location for the errors, propagate complain
154 flags to force_rvalue, and emit errors for non-boolean constraints.
155 (get_normalized_constraints_and_args): New overloads. Factored out of
156 satisfy_constraint_expression and satisfy_declaration_constraints.
157 (satisfy_constraint_expression): Propagate diagnostic info to
159 (satisfy_declaration_constraints): New. Factored out of
160 constraints_satisfied_p.
161 (constraint_satisfaction_value): New. Calls
162 satisfy_constraint_expression or satisfy_declaration_constraints.
163 (constraints_satisfied_p): Call constraint_satisfaction_value.
164 (evaluate_concept_check): Don't take tsubst_falgs_t. Replay
165 satisfaction if an error is encountered.
166 (current_failed_constraint): Moved from pt.c.
167 (diagnose_constraints): Call constraint_satisfaction_value.
168 * cp-tree.h: Update declarations.
169 * pt.c (current_failed_constraint): Moved to constraint.cc.
170 * semantics.c (finish_id_expression_1): Remove a duplicate case.
172 2019-11-27 Jakub Jelinek <jakub@redhat.com>
175 * tree.c (replace_placeholders_r): Don't walk constructor elts with
178 2019-11-26 Jason Merrill <jason@redhat.com>
180 * pt.c (tsubst_copy_and_build) [TEMPLATE_ID_EXPR]: Remember the
181 location of a variable template-id.
182 * constexpr.c (cxx_eval_constant_expression): Get expr location
183 before stripping location wrappers.
184 (non_const_var_error): Take location argument.
186 2019-11-26 Paolo Carlini <paolo.carlini@oracle.com>
188 * typeck.c (cp_build_unary_op): Consistently use the accurate
189 location in seven additional diagnostic messages.
190 (cp_build_compound_expr): Use cp_expr_loc_or_input_loc in one place.
192 2019-11-26 Jakub Jelinek <jakub@redhat.com>
195 * parser.c (cp_parser_std_attribute): For unknown attributes,
196 skip balanced token seq instead of trying to parse
197 attribute-argument-clause as expression list. Formatting fix.
200 * class.c (enum_to_min_precision): New hash_map.
201 (enum_min_precision): New function.
202 (check_bitfield_decl): Use it.
204 2019-11-25 Paolo Carlini <paolo.carlini@oracle.com>
206 * typeck.c (cp_build_indirect_ref_1): Add location_t parameter
207 and use it in error messages.
208 (build_x_indirect_ref): Adjust call.
209 (build_indirect_ref): Likewise.
210 (cp_build_fold_indirect_ref): Likewise.
211 (cp_build_array_ref): Likewise.
212 * call.c (build_new_op_1): Likewise.
213 * semantics.c (finish_omp_clauses): Likewise.
214 (finish_omp_depobj): Likewise.
215 * typeck2.c (build_x_arrow): Likewise.
216 * cp-tree.h (cp_build_indirect_ref): Update declaration.
218 * call.c (build_new_op_1): Use location argument in warning_at.
220 * typeck.c (cp_build_modify_expr): Consistently use the
223 2019-11-23 Bernd Edlinger <bernd.edlinger@hotmail.de>
226 * name-lookup.c (check_local_shadow): Use can_convert_arg
227 instead of can_convert.
229 2019-11-22 Marek Polacek <polacek@redhat.com>
231 PR c++/88337 - P1327R1: Allow polymorphic typeid in constexpr.
232 * constexpr.c (potential_constant_expression_1): Allow a typeid
233 expression whose operand is of polymorphic type in constexpr in
235 * rtti.c (build_typeid): Remove obsolete FIXME comment.
237 2019-11-22 Jakub Jelinek <jakub@redhat.com>
240 * cp-objcp-common.c (identifier_global_tag): Define.
243 * init.c (nsdmi_inst): Change type to
244 decl_tree_cache_map * from tree_cache_map *.
245 * constraint.cc (decl_constraints): Likewise.
246 * decl.c (get_tuple_decomp_init): Likewise.
247 * pt.c (defarg_inst, explicit_specifier_map): Likewise.
248 (tsubst_default_argument, store_explicit_specifier): Use
249 decl_tree_cache_map::create_ggc rather than
250 tree_cache_map::create_ggc.
251 * cp-objcp-common.c (debug_type_map): Change type to
252 type_tree_cache_map * from tree_cache_map *.
254 2019-11-21 Marek Polacek <polacek@redhat.com>
256 PR c++/92450 - ICE with invalid nested name specifier.
257 * parser.c (cp_parser_member_declaration): Don't attempt to print
258 erroneous bit-field diagnostic if grokdeclarator returns
261 2019-11-21 Jakub Jelinek <jakub@redhat.com>
262 Jason Merrill <jason@redhat.com>
265 * parser.c (cp_parser_decl_specifier_seq): For concept or typedef
266 break early if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR.
267 For type specifiers, set CP_PARSER_FLAGS_NO_TYPE_DEFINITIONS
268 if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR is set.
270 2019-11-20 Paolo Carlini <paolo.carlini@oracle.com>
272 * typeck2.c (build_x_arrow): Early return if decay_conversion
273 returns error_mark_node.
275 2019-11-20 Jakub Jelinek <jakub@redhat.com>
278 * call.c (complain_about_no_candidates_for_method_call): If
279 conv->from is not a type, pass to complain_about_bad_argument
280 lvalue_type of conv->from.
282 2019-11-20 Paolo Carlini <paolo.carlini@oracle.com>
284 * cvt.c (ocp_convert): Use additional warning sentinel.
286 2019-11-19 Jakub Jelinek <jakub@redhat.com>
289 * constexpr.c (cxx_eval_outermost_constant_expr): If DECL_INITIAL
290 on object is erroneous, return t without trying to evaluate
293 2019-11-12 Jason Merrill <jason@redhat.com>
295 * call.c (same_fn_or_template): Change to cand_parms_match.
297 (print_z_candidate): Mark rewritten/reversed candidates.
298 (build_new_op_1): Warn about recursive call with reversed arguments.
300 2019-11-15 Andrew Sutton <asutton@lock3software.com>
303 * pt.c (get_underlying_template): Exit loop if the original type
304 of the alias is null.
306 2019-11-19 Andrew Sutton <asutton@lock3software.com>
309 * pt.c (maybe_new_partial_specialization): Apply access to newly
310 created partial specializations. Update comment style.
312 2019-11-19 Andrew Sutton <asutton@lock3software.com>
315 * pt.c (maybe_new_partial_specialization): Apply access to newly
316 created partial specializations. Update comment style.
318 2019-11-19 Andrew Sutton <asutton@lock3software.com>
321 Suppress diagnostics substituting into a requires-expression.
322 * pt.c (tsubst_copy_and_build): Perform the first substitution without
323 diagnostics and a second only if tsubst_requries_expr returns an error.
325 2019-11-19 Jakub Jelinek <jakub@redhat.com>
328 * semantics.c (handle_omp_for_class_iterator): Don't call
329 cp_fully_fold on cond.
331 2019-11-18 Paolo Carlini <paolo.carlini@oracle.com>
333 * typeck.c (cp_build_addr_expr_1): Use cp_expr_loc_or_input_loc
335 (cxx_sizeof_expr): Use it in one additional place.
336 (cxx_alignof_expr): Likewise.
337 (lvalue_or_else): Likewise.
339 2019-11-18 Marek Polacek <polacek@redhat.com>
341 PR c++/91962 - ICE with reference binding and qualification conversion.
342 * call.c (convert_like_real) <case ck_ref_bind>: Check need_temporary_p.
344 2019-11-17 Jakub Jelinek <jakub@redhat.com>
346 * method.c (lookup_comparison_result): Use %qD instead of %<%T::%D%>
348 (lookup_comparison_category): Use %qD instead of %<std::%D%> to print
351 2019-11-15 Paolo Carlini <paolo.carlini@oracle.com>
353 * typeck.c (cp_truthvalue_conversion): Add tsubst_flags_t parameter
354 and use it in calls; also pass the location_t of the expression to
355 cp_build_binary_op and c_common_truthvalue_conversion.
356 * rtti.c (build_dynamic_cast_1): Adjust call.
357 * cvt.c (ocp_convert): Likewise.
358 * cp-gimplify.c (cp_fold): Likewise.
359 * cp-tree.h (cp_truthvalue_conversion): Update declaration.
361 2019-11-14 Jason Merrill <jason@redhat.com>
363 Implement P1816R0, class template argument deduction for aggregates.
364 * pt.c (maybe_aggr_guide, collect_ctor_idx_types): New.
365 (is_spec_or_derived): Split out from do_class_deduction.
366 (build_deduction_guide): Handle aggregate guide.
367 * class.c (finish_struct): Set CLASSTYPE_NON_AGGREGATE in a
369 * cp-tree.h (CP_AGGREGATE_TYPE_P): An incomplete class is not an
372 2019-11-14 Richard Sandiford <richard.sandiford@arm.com>
374 * call.c (build_conditional_expr_1): Use truth_type_for instead
375 of build_same_sized_truth_vector_type.
376 * typeck.c (build_vec_cmp): Likewise.
378 2019-11-14 Jakub Jelinek <jakub@redhat.com>
380 * parser.c (cp_parser_omp_context_selector): Don't require score
381 argument to fit into shwi, just to be INTEGER_CST. Diagnose
383 * pt.c (tsubst_attribute): Likewise.
385 * parser.c (cp_parser_omp_context_selector): Rename
386 CTX_PROPERTY_IDLIST to CTX_PROPERTY_NAME_LIST, add CTX_PROPERTY_ID.
387 Use CTX_PROPERTY_ID for atomic_default_mem_order, only allow a single
388 identifier in that. For CTX_PROPERTY_NAME_LIST, allow identifiers
390 * pt.c (tsubst_attribute): Fix up STRING_CST handling if allow_string.
392 2019-11-13 Marek Polacek <polacek@redhat.com>
394 PR c++/89070 - bogus [[nodiscard]] warning in SFINAE.
395 * cvt.c (convert_to_void): Guard maybe_warn_nodiscard calls with
398 2019-11-13 Richard Sandiford <richard.sandiford@arm.com>
401 * cp-tree.h (STF_STRIP_DEPENDENT): New constant.
402 * tree.c (strip_typedefs): Add STF_STRIP_DEPENDENT to the flags
403 when calling strip_typedefs recursively on a DECL_ORIGINAL_TYPE.
404 Don't apply the fix for DR1558 in that case; allow aliases with
405 dependent template parameters to be stripped instead.
407 2019-11-12 Nathan Sidwell <nathan@acm.org>
409 * name-lookup.c (lookup_using_decl): New function, merged from ...
410 (do_class_using_decl): ... here. Call it. And ...
411 (finish_nonmember_using_decl): ... here. Call it.
413 2019-11-12 Martin Liska <mliska@suse.cz>
415 * name-lookup.c: Do not include params.h.
416 * typeck.c: Likewise.
418 2019-11-12 Martin Liska <mliska@suse.cz>
420 * name-lookup.c (namespace_hints::namespace_hints): Replace old
421 parameter syntax with the new one, include opts.h if needed. Use
422 SET_OPTION_IF_UNSET macro.
423 * typeck.c (comptypes): Likewise.
425 2019-11-12 Maciej W. Rozycki <macro@codesourcery.com>
426 Frederik Harwath <frederik@codesourcery.com>
429 * constexpr.c (potential_constant_expression_1): Handle
431 * parser.c (OACC_SERIAL_CLAUSE_MASK): New macro.
432 (cp_parser_oacc_kernels_parallel): Rename function to...
433 (cp_parser_oacc_compute): ... this. Handle PRAGMA_OACC_SERIAL.
434 (cp_parser_omp_construct): Update accordingly.
435 (cp_parser_pragma): Handle PRAGMA_OACC_SERIAL. Fix alphabetic
437 * pt.c (tsubst_expr): Handle OACC_SERIAL.
439 2019-11-11 Jason Merrill <jason@redhat.com>
441 Implement P1946R0, Allow defaulting comparisons by value.
442 * method.c (early_check_defaulted_comparison): Accept by-value,
443 reject mixed by-value and by-reference parms.
444 * decl.c (grokdeclarator): Set funcdef_flag for defaulted friend.
445 * decl2.c (grokfield): Don't SET_DECL_FRIEND_CONTEXT.
447 * typeck.c (cp_build_binary_op): Sorry about <=> on VECTOR_TYPE.
449 2019-11-11 Jakub Jelinek <jakub@redhat.com>
452 * decl.c (finish_function): Move ctype initialization before
453 DECL_DELETED_FN handling.
455 * semantics.c (finish_translation_unit): Diagnose declare target
456 without corresponding end declare target.
458 2019-11-10 Jason Merrill <jason@redhat.com>
460 Implement D1957R0, T* to bool should be considered narrowing.
461 * typeck2.c (check_narrowing): Treat pointer->bool as a narrowing
462 conversion with -std=c++2a.
464 2019-11-08 Marek Polacek <polacek@redhat.com>
466 PR c++/92215 - flawed diagnostic for bit-field with non-integral type.
467 * parser.c (cp_parser_member_declaration): Add a diagnostic for
468 bit-fields with non-integral types.
470 2019-11-08 Jakub Jelinek <jakub@redhat.com>
472 * init.c (build_vec_delete_1): Fix a comment typo - mist -> must.
474 2019-11-07 Jason Merrill <jason@redhat.com>
476 Implement D1959R0, remove weak_equality and strong_equality.
477 * method.c (enum comp_cat_tag, comp_cat_info): Remove *_equality.
478 (genericize_spaceship, common_comparison_type): Likewise.
479 * typeck.c (cp_build_binary_op): Move SPACESHIP_EXPR to be with the
480 relational operators, exclude other types no longer supported.
482 2019-11-06 Jason Merrill <jason@redhat.com>
484 Implement D1907R1 "structural type".
485 * tree.c (structural_type_p): New.
486 * pt.c (invalid_nontype_parm_type_p): Use it.
487 * class.c (build_base_field_1): Take binfo. Copy TREE_PRIVATE.
488 (build_base_field): Pass binfo.
490 PR c++/92150 - partial specialization with class NTTP.
491 * pt.c (unify): Handle VIEW_CONVERT_EXPR.
493 * pt.c (use_pack_expansion_extra_args_p): Still do substitution if
494 all packs are simple pack expansions.
495 (add_extra_args): Check that the extra args aren't dependent.
497 2019-11-06 Andrew Sutton <asutton@lock3software.com>
499 Use satisfaction with nested requirements.
500 * constraint.cc (build_parameter_mapping): Use
501 current_template_parms when the declaration is not available.
502 (norm_info::norm_info) Make explicit.
503 (normalize_constraint_expression): Factor into a separate overload
504 that takes arguments, and use that in the original function.
505 (tsubst_nested_requirement): Use satisfy_constraint instead of
506 trying to evaluate this as a constant expression.
507 (finish_nested_requirement): Keep the normalized constraint and the
508 original normalization arguments with the requirement.
509 (diagnose_nested_requirement): Use satisfy_constraint. Tentatively
510 implement more comprehensive diagnostics, but do not enable.
511 * parser.c (cp_parser_requires_expression): Relax requirement that
512 requires-expressions can live only inside templates.
513 * pt.c (any_template_parm_r): Look into type of PARM_DECL.
515 2019-11-06 Jason Merrill <jason@redhat.com>
517 C++20 NB CA378 - Remove constrained non-template functions.
518 * decl.c (grokfndecl): Reject constraints on non-templated function.
520 2019-11-06 Matthias Kretz <m.kretz@gsi.de>
522 * parser.c (cp_parser_operator): Parse operator?: as an
523 attempt to overload the conditional operator.
525 2019-11-05 Jason Merrill <jason@redhat.com>
527 Implement C++20 operator<=>.
528 * cp-tree.h (struct lang_decl_fn): Add maybe_deleted bitfield.
529 (DECL_MAYBE_DELETED): New.
530 (enum special_function_kind): Add sfk_comparison.
531 (LOOKUP_REWRITTEN, LOOKUP_REVERSED): New.
532 * call.c (struct z_candidate): Add rewritten and reversed methods.
533 (add_builtin_candidate): Handle SPACESHIP_EXPR.
534 (add_builtin_candidates): Likewise.
535 (add_candidates): Don't add a reversed candidate if the parms are
537 (add_operator_candidates): Split out from build_new_op_1. Handle
538 rewritten and reversed candidates.
539 (add_candidate): Swap conversions of reversed candidate.
540 (build_new_op_1): Swap them back. Build a second operation for
541 rewritten candidates.
542 (extract_call_expr): Handle rewritten calls.
543 (same_fn_or_template): New.
544 (joust): Handle rewritten and reversed candidates.
545 * class.c (add_implicitly_declared_members): Add implicit op==.
546 (classtype_has_op, classtype_has_defaulted_op): New.
547 * constexpr.c (cxx_eval_binary_expression): Handle SPACESHIP_EXPR.
548 (cxx_eval_constant_expression, potential_constant_expression_1):
550 * cp-gimplify.c (genericize_spaceship): New.
551 (cp_genericize_r): Use it.
552 * cp-objcp-common.c (cp_common_init_ts): Handle SPACESHIP_EXPR.
553 * decl.c (finish_function): Handle deleted function.
554 * decl2.c (grokfield): SET_DECL_FRIEND_CONTEXT on defaulted friend.
555 (mark_used): Check DECL_MAYBE_DELETED. Remove assumption that
556 defaulted functions are non-static members.
557 * error.c (dump_expr): Handle SPACESHIP_EXPR.
558 * method.c (type_has_trivial_fn): False for sfk_comparison.
559 (enum comp_cat_tag, struct comp_cat_info_t): New types.
560 (comp_cat_cache): New array variable.
561 (lookup_comparison_result, lookup_comparison_category)
562 (is_cat, cat_tag_for, spaceship_comp_cat)
563 (spaceship_type, genericize_spaceship)
564 (common_comparison_type, early_check_defaulted_comparison)
565 (comp_info, build_comparison_op): New.
566 (synthesize_method): Handle sfk_comparison. Handle deleted.
567 (get_defaulted_eh_spec, maybe_explain_implicit_delete)
568 (explain_implicit_non_constexpr, implicitly_declare_fn)
569 (defaulted_late_check, defaultable_fn_check): Handle sfk_comparison.
570 * name-lookup.c (get_std_name_hint): Add comparison categories.
571 * tree.c (special_function_p): Add sfk_comparison.
572 * typeck.c (cp_build_binary_op): Handle SPACESHIP_EXPR.
574 2019-11-05 Tim van Deurzen <tim@kompiler.org>
576 Add new tree code for the spaceship operator.
577 * cp-tree.def: Add new tree code.
578 * operators.def: New binary operator.
579 * parser.c: Add new token and tree code.
581 2019-09-15 Jason Merrill <jason@redhat.com>
583 * call.c (build_new_op_1): Don't apply any standard conversions to
584 the operands of a built-in operator. Don't suppress conversions in
586 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
588 2019-11-04 Jason Merrill <jason@redhat.com>
590 Use vec instead of raw array for built-in candidates.
591 * call.c (build_builtin_candidate): Take args in a vec.
592 (add_builtin_candidate, add_builtin_candidates): Likewise.
593 (build_conditional_expr_1, build_new_op_1): Adjust.
595 2019-11-04 Jason Merrill <jason@redhat.com>
597 * constexpr.c (explain_invalid_constexpr_fn): Show location of fn.
599 * pt.c (maybe_instantiate_noexcept): Only update clones if we
602 * typeck.c (contextual_conv_bool): New.
604 * name-lookup.c (lookup_qualified_name): Add wrapper overload taking
605 C string rather than identifier.
606 * parser.c (cp_parser_userdef_numeric_literal): Use it.
607 * rtti.c (emit_support_tinfos): Use it.
608 * cp-tree.h (ovl_op_identifier): Change to inline functions.
609 (build_x_binary_op): Add wrapper with fewer parms.
611 2019-11-05 Jason Merrill <jason@redhat.com>
613 * decl2.c (mark_used): Diagnose use of a function with unsatisfied
615 * typeck.c (cp_build_function_call_vec): Not here.
617 2019-11-05 Nathan Sidwell <nathan@acm.org>
620 * parser.c (cp_parser_error_1): Check EOF and UNKNOWN_LOCATION
621 when skipping over version control marker.
623 2019-11-05 Jakub Jelinek <jakub@redhat.com>
626 * constexpr.c (potential_constant_expression_1): Return true rather
627 than false for PREDICT_EXPR.
629 * decl.c (omp_declare_variant_finalize_one): Call
630 declare_simd_adjust_this not just on the context, but also on the
631 variant-id expression for methods. Don't call
632 cp_get_callee_fndecl_nofold, call cp_get_callee and only if it is
633 safe cp_get_fndecl_from_callee. Don't try to print as %qD
635 * pt.c (tsubst_attribute): Handle "omp declare variant base"
637 (tsubst_function_decl): Call omp_declare_variant_finalize
638 if there are any "omp declare variant base" attributes left.
640 2019-11-04 Kamlesh Kumar <kamleshbhalui@gmail.com>
642 PR c++/91979 - mangling nullptr expression
643 * mangle.c (write_template_arg_literal): Handle nullptr
646 2019-11-04 Jason Merrill <jason@redhat.com>
648 * typeck.c (check_return_expr): Avoid redundant error.
650 2019-11-02 Paolo Carlini <paolo.carlini@oracle.com>
652 * typeck.c (composite_pointer_type): Add a const op_location_t&
653 parameter and use it in diagnostics.
654 (composite_pointer_error): Likewise.
655 (composite_pointer_type_r): Add a const op_location_t&
656 parameter and forward it.
657 (cp_build_binary_op): Adjust calls.
658 (common_pointer_type): Likewise.
659 * call.c (add_builtin_candidate): Likewise.
660 (build_conditional_expr_1): Likewise.
661 * cp-tree.h (composite_pointer_type): Update declaration.
663 * typeck.c (cxx_sizeof_expr): Use cp_expr_loc_or_input_loc
665 (cxx_alignof_expr): Likewise.
666 (lvalue_or_else): Likewise.
668 2019-11-02 Jakub Jelinek <jakub@redhat.com>
670 * decl.c (omp_declare_variant_finalize_one): Use
671 omp_get_context_selector instead of c_omp_get_context_selector.
674 * parser.c (cp_parser_decl_specifier_seq): Don't parse attributes
675 if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR.
677 PR c++/88335 - Implement P1073R3: Immediate functions
678 * cp-tree.h (struct lang_decl_fn): Add immediate_fn_p bit.
679 (DECL_IMMEDIATE_FUNCTION_P, SET_DECL_IMMEDIATE_FUNCTION_P): Define.
680 (enum cp_decl_spec): Add ds_consteval.
681 (fold_non_dependent_expr): Add another tree argument defaulted to
683 * name-lookup.h (struct cp_binding_level): Add immediate_fn_ctx_p
685 * parser.c (cp_keyword_starts_decl_specifier_p): Adjust comments
686 for C++11 and C++20 specifiers. Handle RID_CONSTEVAL.
687 (CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR): Adjust comment.
688 (CP_PARSER_FLAGS_CONSTEVAL): New.
689 (cp_parser_skip_balanced_tokens): New forward declaration.
690 (cp_parser_lambda_declarator_opt): Handle ds_consteval. Set
691 current_binding_level->immediate_fn_ctx_p before parsing parameter
692 list if decl-specifier-seq contains consteval specifier.
693 (cp_parser_decl_specifier_seq): Handle RID_CONSTEVAL.
694 (cp_parser_explicit_instantiation): Diagnose explicit instantiation
695 with consteval specifier.
696 (cp_parser_init_declarator): For consteval or into flags
697 CP_PARSER_FLAGS_CONSTEVAL.
698 (cp_parser_direct_declarator): If CP_PARSER_FLAGS_CONSTEVAL, set
699 current_binding_level->immediate_fn_ctx_p in the sk_function_parms
701 (set_and_check_decl_spec_loc): Add consteval entry, formatting fix.
702 * call.c (build_addr_func): For direct calls to immediate functions
703 use build_address rather than decay_conversion.
704 (build_over_call): Evaluate immediate function invocations.
705 * error.c (dump_function_decl): Handle DECL_IMMEDIATE_FUNCTION_P.
706 * semantics.c (expand_or_defer_fn_1): Use tentative linkage and don't
707 call mark_needed for immediate functions.
708 * typeck.c (cxx_sizeof_or_alignof_expr): Likewise. Formatting fix.
709 (cp_build_addr_expr_1): Reject taking address of immediate function
710 outside of immediate function.
711 * decl.c (validate_constexpr_redeclaration): Diagnose consteval
712 vs. non-consteval or vice versa redeclaration. Use
713 SET_DECL_IMMEDIATE_FUNCTION_P if new_decl is immediate function.
714 (check_tag_decl): Use %qs with keyword string to simplify translation.
716 (start_decl): Adjust diagnostics for static or thread_local variables
717 in immediate functions.
718 (grokfndecl): Call sorry_at on virtual consteval. Use %qs with keyword
719 to string to simplify translation. Diagnose consteval main. Use
720 SET_DECL_IMMEDIATE_FUNCTION_P for consteval.
721 (grokdeclarator): Handle consteval. Use %qs with keyword strings to
722 simplify translation. Use separate ifs instead of chained else if
723 for invalid specifiers. For constinit clear constinit_p rather than
725 * constexpr.c (find_immediate_fndecl): New function.
726 (cxx_eval_outermost_constant_expr): Allow consteval calls returning
727 void. Diagnose returning address of immediate function from consteval
729 (fold_non_dependent_expr_template): Add OBJECT argument, pass it
730 through to cxx_eval_outermost_constant_expr.
731 (fold_non_dependent_expr): Add OBJECT argument, pass it through to
732 fold_non_dependent_expr_template.
733 (fold_non_dependent_init): Adjust fold_non_dependent_expr_template
735 * method.c (defaulted_late_check): Adjust diagnostics for consteval.
736 * lambda.c (maybe_add_lambda_conv_op): Copy over
737 DECL_DECLARED_CONSTEXPR_P and DECL_IMMEDIATE_FUNCTION_P bits from
738 callop to both artificial functions.
739 * init.c (build_value_init): Don't do further processing if
740 build_special_member_call returned a TREE_CONSTANT. Formatting fix.
742 PR c++/91369 - Implement P0784R7: constexpr new
743 * cp-tree.h (CALL_FROM_NEW_OR_DELETE_P): Define.
744 * init.c (build_new_1, build_vec_delete_1, build_delete): Set
745 CALL_FROM_NEW_OR_DELETE_P on the CALL_EXPR to allocator functions.
746 * constexpr.c (is_std_allocator_allocate): Only allow
747 global replaceable allocator functions if CALL_FROM_NEW_OR_DELETE_P
748 or in std::allocate<T>::{,de}allocate.
749 (potential_constant_expression_1): Likewise.
751 2019-11-01 Nathan Sidwell <nathan@acm.org>
753 * class.c (check_field_decls): Refactor.
755 2019-10-31 Jakub Jelinek <jakub@redhat.com>
758 * cp-tree.h (type_initializer_zero_p): Declare.
759 * decl.c (reshape_init_array_1): Formatting fix.
760 * tree.c (type_initializer_zero_p): New function. Moved from
761 ../tree.c, use next_initializable_field, formatting fix. Return
762 false for TYPE_NON_AGGREGATE_CLASS types.
764 2019-10-30 Jason Merrill <jason@redhat.com>
766 PR c++/92268 - hard error satisfying return-type-requirement
767 * constraint.cc (type_deducible_p): Check for substitution failure.
768 (diagnose_compound_requirement): Adjust diagnostic.
769 * pt.c (do_auto_deduction): Don't pass cargs to
770 constraints_satisfied_p.
772 2019-10-30 Jakub Jelinek <jakub@redhat.com>
774 PR c++/91369 - Implement P0784R7: constexpr new
775 * constexpr.c (cxx_replaceable_global_alloc_fn): Don't return true
777 (cxx_placement_new_fn, is_std_construct_at): New functions.
778 (cxx_eval_call_expression): Allow placement new in std::construct_at.
779 (potential_constant_expression_1): Likewise.
781 * typeck.c (decl_in_std_namespace_p): Return true also for decls
782 in inline namespaces inside of std namespace.
784 2019-10-30 Bernd Edlinger <bernd.edlinger@hotmail.de>
787 * name-lookup.c (check_local_shadow): Shadowing TYPE_DECLs
788 is always a -Wshadow=compatible-local warning, unless
791 2019-10-30 Jason Merrill <jason@redhat.com>
793 * cxx-pretty-print.c (get_fold_operator): Use OVL_OP_INFO.
795 2019-10-30 Marek Polacek <polacek@redhat.com>
797 PR c++/92134 - constinit malfunction in static data member.
798 * decl2.c (grokfield): Set LOOKUP_CONSTINIT.
800 2019-10-30 Jakub Jelinek <jakub@redhat.com>
802 * cp-tree.h (omp_declare_variant_finalize, build_local_temp): Declare.
803 * decl.c: Include omp-general.h.
804 (declare_simd_adjust_this): Add forward declaration.
805 (omp_declare_variant_finalize_one, omp_declare_variant_finalize): New
807 (cp_finish_decl, finish_function): Call omp_declare_variant_finalize.
808 * parser.c (cp_finish_omp_declare_variant): Adjust parsing of the
809 variant id-expression and propagate enough information to
810 omp_declare_variant_finalize_one in the attribute so that it can
812 * class.c (finish_struct): Call omp_declare_variant_finalize.
813 * tree.c (build_local_temp): No longer static, remove forward
816 2019-10-30 Paolo Carlini <paolo.carlini@oracle.com>
818 * typeck.c (cp_build_modify_expr): Prefer error + inform to
819 error + error in one place.
820 (get_delta_difference_1): Likewise.
821 (get_delta_difference): Likewise, in two places.
823 2019-10-29 Paolo Carlini <paolo.carlini@oracle.com>
825 * typeck.c (build_x_unary_op): Use the location_t argument in
828 2019-10-29 Marek Polacek <polacek@redhat.com>
830 PR c++/90998 - ICE with copy elision in init by ctor and -Wconversion.
831 * call.c (joust): Don't attempt to warn if ->second_conv is null.
833 2019-10-29 Jakub Jelinek <jakub@redhat.com>
836 * cp-gimplify.c (cp_gimplify_expr): If gimplify_to_rvalue changes the
837 function pointer type, re-add cast to the original one.
839 2019-10-29 Marek Polacek <polacek@redhat.com>
841 PR c++/91548 - fix detecting modifying const objects for ARRAY_REF.
842 * constexpr.c (cxx_eval_store_expression): Don't call
843 modifying_const_object_p for ARRAY_REF.
845 2019-10-29 Richard Sandiford <richard.sandiford@arm.com>
847 * cp-objcp-common.h (cxx_simulate_enum_decl): Declare.
848 (LANG_HOOKS_SIMULATE_ENUM_DECL): Define to the above.
849 * decl.c (cxx_simulate_enum_decl): New function.
851 2019-10-29 Richard Sandiford <richard.sandiford@arm.com>
853 * cp-tree.h (cxx_simulate_builtin_function_decl): Declare.
854 * decl.c (cxx_simulate_builtin_function_decl): New function.
855 * cp-objcp-common.h (LANG_HOOKS_SIMULATE_BUILTIN_FUNCTION_DECL):
858 2019-10-28 Martin Sebor <msebor@redhat.com>
861 * cp-objcp-common.c (names_builtin_p): Define new function.
863 2019-10-28 Nathan Sidwell <nathan@acm.org>
865 * parser.h (struct cp_token): Drop {ENUM,BOOL}_BITFIELD C-ism.
866 Add tree_check_p flag, use as nested union discriminator.
867 (struct cp_lexer): Add saved_type & saved_keyword fields.
868 * parser.c (eof_token): Delete.
869 (cp_lexer_new_main): Always init last_token to last token of
871 (cp_lexer_new_from_tokens): Overlay EOF token at end of range.
872 (cp_lexer_destroy): Restore token under the EOF.
873 (cp_lexer_previous_token_position): No check for eof_token here.
874 (cp_lexer_get_preprocessor_token): Clear tree_check_p.
875 (cp_lexer_peek_nth_token): Check CPP_EOF not eof_token.
876 (cp_lexer_consume_token): Assert not CPP_EOF, no check for
878 (cp_lexer_purge_token): Likewise.
879 (cp_lexer_purge_tokens_after): No check for EOF token.
880 (cp_parser_nested_name_specifier, cp_parser_decltype)
881 (cp_parser_template_id): Set tree_check_p.
883 2019-10-24 Jakub Jelinek <jakub@redhat.com>
885 * decl2.c (cplus_decl_attributes): Add "omp declare target block"
886 attribute in between declare target and end declare target
889 * call.c (convert_arg_to_ellipsis): Add missing space in string
892 2019-10-24 Marek Polacek <polacek@redhat.com>
894 * decl.c (reshape_init_r): Add missing space.
896 2019-10-24 Nathan Sidwell <nathan@acm.org>
898 * pt.c (reduce_template_parm_level): Attach the new TPI to the new
900 (convert_generic_types_to_packs): Pass the copied type to
901 reduce_templatE_parm_level.
903 2019-10-23 Nathan Sidwell <nathan@acm.org>
905 * cp-tree.c (CPTI_STD_IDENTIFIER): Delete.
906 (std_identifier): Delete.
907 (DECL_NAME_SPACE_STD_P): Compare against std_node.
908 * decl.c (initialize_predefined_identifiers): 'std' is not needed.
909 (cxx_init_decl_processing): Adjust creation of ::std. Use
910 {push,pop}_nested_namespace.
911 (cxx_builtin_function): Use {push,pop}_nested_namespace.
912 * except.c (init_exception_processing): Likewise.
913 * rtti.c (init_rtti_processing): Likewise.
915 2019-10-23 Jason Merrill <jason@redhat.com>
917 Implement P1286R2, Contra CWG1778
918 * method.c (defaulted_late_check): Don't check explicit
919 exception-specification on defaulted function.
920 (after_nsdmi_defaulted_late_checks): Remove.
921 * parser.h (struct cp_unparsed_functions_entry): Remove classes.
922 * parser.c (unparsed_classes): Remove.
923 (push_unparsed_function_queues, cp_parser_class_specifier_1):
926 2019-10-23 Jakub Jelinek <jakub@redhat.com>
928 * constexpr.c (cxx_eval_constant_expression) <case CLEANUP_STMT>:
929 Temporarily change input_location to CLEANUP_STMT location.
931 2019-10-22 Jakub Jelinek <jakub@redhat.com>
933 PR tree-optimization/85887
934 * decl.c (expand_static_init): Drop ECF_LEAF from __cxa_guard_acquire
935 and __cxa_guard_release.
937 2019-10-22 Marc Glisse <marc.glisse@inria.fr>
940 * constexpr.c (cxx_eval_builtin_function_call): Only set
941 force_folding_builtin_constant_p if manifestly_const_eval.
943 2019-10-22 Richard Sandiford <richard.sandiford@arm.com>
945 * cp-tree.h (STF_USER_VISIBLE): New constant.
946 (strip_typedefs, strip_typedefs_expr): Take a flags argument.
947 * tree.c (strip_typedefs, strip_typedefs_expr): Likewise,
948 updating mutual calls accordingly. When STF_USER_VISIBLE is true,
949 only look through typedefs if user_facing_original_type_p.
950 * error.c (dump_template_bindings, type_to_string): Pass
951 STF_USER_VISIBLE to strip_typedefs.
952 (dump_type): Likewise, unless pp_c_flag_gnu_v3 is set.
954 2019-10-21 Kamlesh Kumar <kamleshbhalui@gmail.com>
955 Jason Merrill <jason@redhat.com>
957 PR c++/83534 - typeinfo of noexcept function
958 * rtti.c (get_tinfo_decl_dynamic): Do not call
959 TYPE_MAIN_VARIANT for function.
960 (get_typeid): Likewise.
962 2019-10-21 Paolo Carlini <paolo.carlini@oracle.com>
964 * parser.c (cp_parser_class_head): Improve error recovery upon
965 extra qualification error.
967 2019-10-21 Jakub Jelinek <jakub@redhat.com>
970 * constexpr.c (cxx_eval_component_reference, cxx_eval_bit_field_ref):
971 Use STRIP_ANY_LOCATION_WRAPPER on CONSTRUCTOR elts.
973 2019-10-21 Marek Polacek <polacek@redhat.com>
975 PR c++/92062 - ODR-use ignored for static member of class template.
976 * pt.c (has_value_dependent_address): Strip location wrappers.
978 2019-10-21 Marek Polacek <polacek@redhat.com>
980 PR c++/92106 - ICE with structured bindings and -Wreturn-local-addr.
981 * typeck.c (maybe_warn_about_returning_address_of_local): Avoid
982 recursing on null initializer and return false instead.
984 2019-10-17 JeanHeyd Meneide <phdofthehouse@gmail.com>
986 Implement p1301 [[nodiscard("should have a reason")]] + p1771 DR
987 * tree.c (handle_nodiscard_attribute): Handle C++2a nodiscard
989 (std_attribute_table) Increase nodiscard argument handling
990 max_length from 0 to 1.
991 * parser.c (cp_parser_check_std_attribute): Add requirement
992 that nodiscard only be seen once in attribute-list.
993 (cp_parser_std_attribute): Check that empty parenthesis lists are
994 not specified for attributes that have max_length > 0 (e.g.
996 * cvt.c (maybe_warn_nodiscard): Add nodiscard message to
997 output, if applicable.
998 (convert_to_void): Allow constructors to be nodiscard-able (P1771).
1000 2019-10-18 Nathan Sidwell <nathan@acm.org>
1002 * cp-tree.h (struct lang_type): Remove was_anonymous.
1003 (TYPE_WAS_UNNAMED): Implement by checking TYPE_DECL &
1005 * decl.c (name_unnamed_type): Don't set TYPE_WAS_UNNAMED.
1007 2019-10-17 Paolo Carlini <paolo.carlini@oracle.com>
1009 * decl.c (grokfndecl): Remove redundant use of in_system_header_at.
1010 (compute_array_index_type_loc): Likewise.
1011 (grokdeclarator): Likewise.
1012 * error.c (cp_printer): Likewise.
1013 * lambda.c (add_default_capture): Likewise.
1014 * parser.c (cp_parser_primary_expression): Likewise.
1015 (cp_parser_selection_statement): Likewise.
1016 (cp_parser_toplevel_declaration): Likewise.
1017 (cp_parser_enumerator_list): Likewise.
1018 (cp_parser_using_declaration): Likewise.
1019 (cp_parser_member_declaration): Likewise.
1020 (cp_parser_exception_specification_opt): Likewise.
1021 (cp_parser_std_attribute_spec): Likewise.
1022 * pt.c (do_decl_instantiation): Likewise.
1023 (do_type_instantiation): Likewise.
1024 * typeck.c (cp_build_unary_op): Likewise.
1026 * decl.c (check_tag_decl): Pass to in_system_header_at the same
1027 location used for the permerror.
1028 (grokdeclarator): Likewise.
1030 * decl.c (check_tag_decl): Use locations[ds_typedef] in error_at.
1032 2019-10-17 Jason Merrill <jason@redhat.com>
1034 * cp-gimplify.c (cp_gimplify_expr): Use get_initialized_tmp_var.
1035 (gimplify_to_rvalue): Remove default NULL argument.
1037 2019-10-17 Nathan Sidwell <nathan@acm.org>
1039 * decl.c (builtin_function_1): Merge into ...
1040 (cxx_builtin_function): ... here. Nadger the decl before maybe
1041 copying it. Set the context.
1042 (cxx_builtin_function_ext_scope): Push to top level, then call
1043 cxx_builtin_function.
1045 2019-10-16 Luis Machado <luis.machado@linaro.org>
1047 * cp-gimplify.c: Fix reference to non-existing tree-gimple.c file.
1049 2019-10-16 Jakub Jelinek <jakub@redhat.com>
1051 * decl.c (cxx_maybe_build_cleanup): When clearing location of cleanup,
1052 if cleanup is a nop, clear location of its operand too.
1054 2019-10-15 Andrew Sutton <asutton@lock3software.com>
1056 Finish moving constraint and logic functionality of out pt.c.
1057 Reimplement and re-enable subsumption caching.
1059 * config-lang.in (gtfiles): Add logic.cc.
1060 * constraint.cc (atomic_constraints_identical_p): Add assertions.
1061 (hash_atomic_constraint): Likewise.
1062 (constraints_equivalent_p): New.
1063 (inchash::add_constraint): New.
1064 (iterative_hash_constraint): New.
1065 (decl_constraints): Moved from pt.c.
1066 (get_constraints): Likewise.
1067 (set_constraints): Likewise.
1068 (remove_constraints): Likewise.
1069 * cp-tree.h (CONSTR_P): New.
1070 (init_constraint_processing): Remove.
1071 (constraints_equivalent_p, iterative_hash_constraint): Declare.
1072 * decl.c (cxx_init_decl_processing): Don't initialize constraints.
1073 * logic.cc (subsumption_entry): Moved from pt.c.
1074 (subsumption_hasher): Likewise.
1075 (subsumption_cache): Likewise.
1076 (lookup_subsumption): Likewise.
1077 (save_subsumption): Likewise.
1078 (subsumes_constraints_nonnull): Use subsumption cache.
1079 * pt.c: Move aforementioned declarations out of this file.
1080 (init_constraint_processing): Remove.
1082 2019-10-15 Andrew Sutton <asutton@lock3software.com>
1084 * parser.c (cp_parser_constructor_declarator_p): Pass an empty
1085 decl-specifier-seq to make sure we parse type constraints as part
1086 of a type-specifier.
1088 2019-10-15 Nathan Sidwell <nathan@acm.org>
1090 * class.c (build_clones): Break out of clone_function_decl. Just
1092 (clone_function_decl): Call build_clones, then maybe add them to
1095 * class.c (build_clone): Refactor to clarify recursiveness.
1097 2019-10-14 Jason Merrill <jason@redhat.com>
1099 PR c++/91930 - ICE with constrained inherited default ctor.
1100 * name-lookup.c (do_class_using_decl): Set TYPE_HAS_USER_CONSTRUCTOR
1101 for inherited constructor.
1103 2019-10-14 Paolo Carlini <paolo.carlini@oracle.com>
1105 * decl.c (check_tag_decl): Use DECL_SOURCE_LOCATION.
1107 2019-10-14 Jakub Jelinek <jakub@redhat.com>
1110 * semantics.c (handle_omp_array_sections_1): Temporarily disable
1111 -fstrong-eval-order also for in_reduction and task_reduction clauses.
1113 * parser.c (cp_parser_omp_all_clauses): Change bool NESTED_P argument
1114 into int NESTED, if it is 2, diagnose missing commas in between
1116 (cp_parser_omp_context_selector): Pass 2 as last argument to
1117 cp_parser_omp_all_clauses.
1119 2019-10-12 Jakub Jelinek <jakub@redhat.com>
1121 * parser.c (cp_parser_omp_context_selector): Improve error recovery.
1122 For simd properties, put them directly into TREE_VALUE.
1123 (cp_finish_omp_declare_variant): Add "omp declare variant base"
1124 attribute rather than "omp declare variant".
1126 2019-10-11 Marek Polacek <polacek@redhat.com>
1128 PR c++/92049 - extra error with -fchecking=2.
1129 * pt.c (build_non_dependent_expr): Call fold_non_dependent_expr
1132 2019-10-11 Paolo Carlini <paolo.carlini@oracle.com>
1134 * typeck.c (cp_build_binary_op): Do not handle RROTATE_EXPR and
1136 * constexpr.c (cxx_eval_constant_expression): Likewise.
1137 (potential_constant_expression_1): Likewise.
1138 * pt.c (tsubst_copy): Likewise.
1140 2019-10-11 Jason Merrill <jason@redhat.com>
1142 * decl2.c (mark_used): Don't clobber DECL_SOURCE_LOCATION on
1143 explicitly defaulted functions.
1144 * method.c (synthesize_method): Likewise.
1146 2019-10-11 Jakub Jelinek <jakub@redhat.com>
1149 * decl2.c (grok_array_decl): For -fstrong-eval-order, when array ref
1150 operands have been swapped and at least one operand has side-effects,
1151 revert the swapping before calling build_array_ref.
1152 * typeck.c (cp_build_array_ref): For non-ARRAY_TYPE array ref with
1153 side-effects on the index operand, if -fstrong-eval-order use
1154 save_expr around the array operand.
1155 (cp_build_binary_op): For shifts with side-effects in the second
1156 operand, wrap first operand into SAVE_EXPR and evaluate it before
1158 * semantics.c (handle_omp_array_sections_1): Temporarily disable
1159 flag_strong_eval_order during OMP_CLAUSE_REDUCTION array section
1161 * cp-gimplify.c (gimplify_to_rvalue): New function.
1162 (cp_gimplify_expr): Use it.
1164 2019-10-10 Marek Polacek <polacek@redhat.com>
1166 * typeck.c (comp_ptr_ttypes_real): Change the return type to bool.
1167 Use false instead of 0.
1169 2019-10-10 Jakub Jelinek <jakub@redhat.com>
1171 * parser.h (struct cp_omp_declare_simd_data): Add variant_p member.
1172 * parser.c (cp_ensure_no_omp_declare_simd): Handle both declare simd
1173 and declare variant.
1174 (cp_parser_oacc_all_clauses): Formatting fix.
1175 (cp_parser_omp_all_clauses): Add NESTED_P argument, if true, terminate
1176 processing on closing paren and don't skip to end of pragma line.
1177 (cp_parser_omp_declare_simd): Add VARIANT_P argument. Handle also
1179 (omp_construct_selectors, omp_device_selectors,
1180 omp_implementation_selectors, omp_user_selectors): New variables.
1181 (cp_parser_omp_context_selector,
1182 cp_parser_omp_context_selector_specification,
1183 cp_finish_omp_declare_variant): New functions.
1184 (cp_parser_late_parsing_omp_declare_simd): Handle also declare variant.
1185 (cp_parser_omp_declare): Handle declare variant.
1187 2019-10-09 Jason Merrill <jason@redhat.com>
1189 * cp-tree.h (template_info_decl_check): Check ENABLE_TREE_CHECKING.
1191 2019-10-09 Marek Polacek <polacek@redhat.com>
1193 PR c++/91364 - P0388R4: Permit conversions to arrays of unknown bound.
1194 PR c++/69531 - DR 1307: Differently bounded array parameters.
1195 PR c++/88128 - DR 330: Qual convs and pointers to arrays of pointers.
1196 * call.c (build_array_conv): Build ck_identity at the beginning
1198 (standard_conversion): Pass bounds_none to comp_ptr_ttypes_const.
1199 (maybe_warn_array_conv): New.
1200 (convert_like_real): Call it. Add an error message about converting
1201 from arrays of unknown bounds.
1202 (conv_get_original_expr): New.
1203 (nelts_initialized_by_list_init): New.
1204 (conv_binds_to_array_of_unknown_bound): New.
1205 (compare_ics): Implement list-initialization ranking based on
1206 array sizes, as specified in DR 1307 and P0388R.
1207 * cp-tree.h (comp_ptr_ttypes_const): Adjust declaration.
1208 (compare_bounds_t): New enum.
1209 * typeck.c (comp_array_types): New bool and compare_bounds_t
1210 parameters. Use them.
1211 (structural_comptypes): Adjust the call to comp_array_types.
1212 (similar_type_p): Handle ARRAY_TYPE.
1213 (build_const_cast_1): Pass bounds_none to comp_ptr_ttypes_const.
1214 (comp_ptr_ttypes_real): Don't check cv-quals of ARRAY_TYPEs. Use
1215 comp_array_types to compare array types. Look through arrays as per
1217 (comp_ptr_ttypes_const): Use comp_array_types to compare array types.
1218 Look through arrays as per DR 330.
1220 2019-10-09 Marek Polacek <polacek@redhat.com>
1222 PR c++/92032 - DR 1601: Promotion of enum with fixed underlying type.
1223 * call.c (standard_conversion): When converting an enumeration with
1224 a fixed underlying type to the underlying type, give it the cr_promotion
1226 (compare_ics): Implement a tiebreaker as per CWG 1601.
1228 2019-10-08 Andrew Sutton <asutton@lock3software.com>
1229 Jason Merrill <jason@redhat.com>
1231 Update the concepts implementation to conform to the C++20
1232 specification, improve compile times, and generally clean up
1234 * call.c (build_new_function_call): Don't evaluate concepts here.
1235 (constraint_failure): Don't record the template.
1236 (print_z_candidate): Don't extract the template.
1237 * class.c (add_method): When overloading, hide ineligible special
1239 (check_methods): Set TYPE_HAS_COMPLEX_* here.
1240 * constexpr.c (cxx_eval_constant_expression): Evaluate concepts.
1241 (maybe_initialize_fundef_copies_table): Remove.
1242 (get_fundef_copy): Use hash_map_safe_get_or_insert.
1243 (clear_cv_and_fold_caches): Clear the satisfaction cache.
1244 * constraint.cc (known_non_bool_p): New.
1245 (parsing_constraint_expression_sentinel): Renamed from
1246 expanding_constraint_sentinel.
1247 (check_constraint_operands): New.
1248 (check_constraint_atom): New.
1249 (finish_constraint_binary_op): New.
1250 (finish_constraint_or_expr): Likewise.
1251 (finish_constraint_and_expr): Likewise.
1252 (finish_constraint_primary_expr): Likewise.
1253 (combine_constraint_expressions): New.
1254 (finish_requires_expr): Add location parm.
1255 (get_concept_definition): Return the initializer of concept definitions.
1256 (get_template_head_requirements): New.
1257 (get_trailing_function_requirements): New.
1258 (deduce_constrained_parameter): Check if the identifier or template-id
1259 is a concept definition.
1260 (resolve_concept_definition_check): Removed.
1261 (resolve_variable_concept_check): Removed.
1262 (resolve_concept_check): New.
1263 (resolve_constraint_check): Handle concept definitions.
1264 converting arguments.
1265 (function_concept_check_p): Removed.
1266 (variable_concept_check_p): Removed.
1267 (unpack_concept_check): New.
1268 (get_concept_check_template): New.
1269 (build_call_check): Moved and renamed to build_function_check.
1270 (build_concept_check_arguments): make static.
1271 (build_function_check): Always do overload resolution
1272 in order to force conversion of template arguments (i.e., actually
1273 check that the use of a concept is valid).
1274 (build_standard_check): Renamed from build_real_concept_check.
1275 (build_real_concept_check): Build checks for C++2a concepts by
1276 (build_wildcard_concept_check): New.
1277 (build_concept_check): Use build_real_concept_check. New overload.
1278 (build_constraints): Save expressions, not normalized constraints.
1279 (build_concept_id): New. Pass tf_warning_or_error.
1280 (build_type_constraint): New.
1281 (finish_type_constraints): New.
1282 (associate_classtype_constraints): Also add constraints to union
1283 types. Note the original declaration in errors. Don't return
1284 error_mark_node in order to avoid an assertion later.
1285 (push_down_pack_expansion): Remove.
1286 (finish_shorthand_constraint): Make fold expressions, not naked
1287 parameter packs. Always apply the constraint to each template argument.
1288 (check_introduction_list): New. Fail if not enough
1289 names are introduced.
1290 (finish_template_introduction): Don't normalize constraints. Pass
1291 tsubst flags. Check for insufficient introductions.
1292 (placeholder_extract_concept_and_args): Handle the template-id case.
1293 Unpack function concept checks correctly.
1294 (tsubst_simple_requirement): Return errors if they occur. Don't
1295 process as a template.
1296 (tsubst_type_requirement): Likewise.
1297 (type_deducible_p): New. Wrap the input expression in parens for the
1298 purpose of deduction.
1299 (expression_convertible_t): New.
1300 (tsubst_compound_requirement): Use new deduction, conversion predicates.
1301 (tsubst_nested_requirement): Return errors if they occur. Don't
1302 process as a template. Instantiate and evaluate the nested requirement.
1303 (tsubst_valid_expression_requirement): New.
1304 (tsubst_simple_requirement): Use tsubst_valid_expression_requirement.
1305 (tsubst_compound_requirement): Use tsubst_valid_expression_requirement.
1306 (check_constaint_variables): New.
1307 (tsubst_constraint_variables): Check that type substitutions are valid.
1308 (tsubst_requires_expr): Likewise. Produce new requires-exprs during
1309 template substitution. Copy the previous local specialization stack,
1310 so references to non-local parameters can be found. Use cp_unevaluated.
1311 (tsubst_constraint): New. Don't evaluate concept checks.
1313 (norm_info): New. Used to build a normalization tree for concept check
1315 (debug_parameter_mapping): New.
1316 (debug_argument_list): New.
1317 (expand_concept): Removed.
1318 (normalize_logical_operation): Pass subst_info through call.
1319 (normalize_pack_expansion): Remove.
1320 (normalize_simple_requirement): Removed
1321 (normalize_type_requirement): Removed
1322 (normalize_compound_requirement): Removed
1323 (normalize_nested_requirement): Removed
1324 (normalize_requirement): Removed
1325 (normalize_requirements): Removed
1326 (normalize_requires_expression): Removed
1327 (normalize_variable_concept_check): Removed.
1328 (normalize_function_concept_check): Removed.
1329 (normalize_concept_check): Merged all normalize_*_check here.
1330 Substitute through written template arguments before normalizing the
1331 definition. Only substitute the innermost template arguments.
1332 (check_for_logical_overloads): Delete.
1333 (map_arguments): New. Associate template parameters with arguments.
1334 (build_parameter_mapping): New. Extract used parameters.
1335 (normalize_expression): Rewrite.
1336 (normalize_conjunction): Removed
1337 (normalize_disjunction): Removed
1338 (normalize_predicate_constraint): Removed
1339 (normalize_parameterized_constraint): Removed
1340 (normalized_map): New variable.
1341 (get_normalized_constraints): New entry point for normalization.
1342 Establishes a timer.
1343 (get_normalized_constraints_from_info): New.
1344 (get_normalized_constraints_from_decl): New. Turn on template processing
1345 prior to normalization. Handle inheriting ctors. Build the
1346 normalization arguments from the full set of template parameters of the
1347 most general template. This guarantees that we have no concrete arguments
1348 in the parameter mapping (e.g., from template members of class
1349 templates). Cache normalizations.
1350 (normalize_concept_definition): New. Cache normalizations.
1351 (normalize_template_requirements): New.
1352 (normalize_nontemplate_requirements): New.
1353 (normalize_constraint_expression): New.
1354 (tsubst_parameter_mapping): New.
1355 (get_mapped_args): New.
1356 (parameter_mapping_equivalent_p): New. Use template_args_equal.
1357 (atomic_constraints_identical_p): New.
1358 (hash_atomic_constraint): New.
1359 (satisfying_constraint_p): New. Guard against recursive evaluation of
1360 constraints during satisfaction.
1361 (satisfy_conjunction): New.
1362 (satisfy_disjunction): New.
1363 (sat_entry): New class for hashing satisfaction results.
1364 (sat_hasher): New hash traits.
1366 (get_satisfaction): New. Returns cached satisfaction result.
1367 (save_satisfaction): New. Caches a satisfaction result.
1368 (clear_satisfaction_cache): New.
1369 (satisfaction_cache): New. Helps manage satisfaction cache requests.
1370 (decl_satisfied_cache): New.
1371 (satisfy_atom): New.
1372 (satisfy_constraint_r): New.
1373 (satisfy_constraint): Use new satisfaction algorithm.
1374 (evaluate_concept_check): New.
1375 (evaluate_concept): Removed.
1376 (evaluate_function_concept): Removed.
1377 (evaluate_variable_concept): Removed.
1378 (satisfy_constraint_expression): New.
1379 (constraint_expression_satisfied_p): New.
1380 (constraints_satisfied_p): Use strip_inheriting_ctors. Use
1381 push_/pop_access_scope.
1382 (more_constrained): Normalize before calling out to subsumption. Allow
1383 classes as arguments.
1384 (strictly_subsumes): Allow non-templates as arguments. Accept a new
1386 (weakly_subsumes): New.
1387 (at_least_as_constrained): Removed.
1388 (diagnose_other_expression): Removed.
1389 (diagnose_predicate_constraint): Removed.
1390 (diagnose_pack_expansion): Removed.
1391 (diagnose_check_constraint): Removed.
1392 (diagnose_logical_constraint): Removed.
1393 (diagnose_expression_constraint): Removed.
1394 (diagnose_type_constraint): Removed.
1395 (diagnose_implicit_conversion_constraint): Removed.
1396 (diagnose_argument_deduction_constraint): Removed.
1397 (diagnose_exception_constraint): Removed.
1398 (diagnose_parameterized_constraint): Removed.
1399 (diagnose_argument_deduction_constraint): Removed.
1400 (diagnose_argument_deduction_constraint): Removed.
1401 (diagnose_argument_deduction_constraint): Removed.
1402 (diagnose_trait_expr): New.
1403 (diagnose_requires_expr): New.
1404 (diagnose_atomic_constraint): New.
1405 (diagnose_valid_expression) Stop wrongly diagnosing valid expressions.
1406 Don't substitute as if in template decls. This causes substitution
1407 to generate expressions that aren't suitable for use with the noexcept
1409 (diagnose_valid_type) Likewise.
1410 (diagnose_compound_requirement) Actually emit diagnostics for
1411 the causes of errors.Call force_paren_expr_uneval.
1412 (diagnose_declaration_constraints): Turn on template processing to
1413 suppress certain analyses.
1414 * cp-objcp-common.c (cp_common_init_ts): Make concepts typed.
1415 (cp_get_debug_type): Use hash_map_safe_*.
1416 * cp-tree.h: New function declarations for semantic actions, other
1417 facilities. Remove declaration no longer used or needed. Remove
1418 unused _CONSTR macros.
1419 (LANG_DECL_HAS_MIN): Add CONCEPT_DECL.
1420 (template_info_decl_check): Factor macro check into an inline function.
1421 (DECL_TEMPLATE_INFO): Use new check facility.
1422 (finish_concept_definition): New. Don't invalid concept declarations
1423 with invalid initializers.
1424 (find_template_parameters): New.
1425 (concept_definition_p): New.
1426 (concept_check_p): New.
1427 (variable_concept_check_p): New.
1428 (force_paren_expr_uneval): New.
1429 (ovl_iterator::using_p): A USING_DECL by itself was also
1430 introduced by a using-declaration.
1431 (struct tree_template_info): Use tree_base instead of
1432 tree_common. Add tmpl and args fields.
1433 (TI_TEMPLATE, TI_ARGS): Adjust.
1434 (DECLTYPE_FOR_INIT_CAPTURE): Remove.
1435 (CONSTR_CHECK, CONSTR_INFO, CONSTR_EXPR, CONSTR_CONTEXT): New.
1436 (ATOMIC_CONSTR_MAP, TRAIT_EXPR_LOCATION): New.
1437 (struct tree_trait_expr): Add locus field.
1438 (enum tsubst_flags): Add tf_norm as a hint to generate normalization
1439 context when diagnosing constraint failure.
1440 * cp-tree.def: Remove unused _CONSTR nodes and rename PRED_CONSTR
1442 (CONCEPT_DECL): New.
1443 * cxx-pretty-print.c: Remove constraint printing code.
1444 (pp_cxx_concept_definition): New.
1445 (pp_cxx_template_declaration): Print concept definitions.
1446 (pp_cxx_check_constraint): Update printing for concept definitions.
1447 (pp_cxx_nested_name_specifier): Fix a weird
1448 case where we're printing '::::' for concepts.
1449 (simple_type_specifier): Print requirements for placeholder types.
1450 (pp_cxx_constrained_type_spec): Print the associated requirements of
1452 (pp_cxx_compound_requirement): Add space before the '->'.
1453 (pp_cxx_parameter_mapping): Print the parameter mapping.
1454 (pp_cxx_atomic_constraint): Use the function above.
1455 * decl.c (redeclaration_error_message): New error for concepts.
1456 (grokdeclarator): Check for and disallow decltype(auto) in parameter
1458 (grokfndecl): Don't normalize constraints. Add check for constraints
1460 (grokvardecl): Don't normalize constraints.
1461 (grok_special_member_properties): Don't set TYPE_HAS_COMPLEX_*.
1462 (function_requirements_equivalent_p): New. Compare trailing
1463 requires clauses. Compare combined constraints in pre-C++20 mode.
1464 (decls_match): Compare trailing requires clauses. Compare template
1465 heads for function templates. Remove old constraint comparison.
1466 Simplify comparison of functions, function templates.
1467 (duplicate_function_template_decls): New. Refactor a nasty if
1468 condition into a single predicate.
1469 (require_deduced_type): Don't complain if we already complained about
1471 (finish_function): Perform auto deduction to ensure that constraints
1472 are checked even when functions contain no return statements. Only do
1473 auto deduction if we haven't previously seen any return statements.
1474 This prevents multiple diagnostics of the same error.
1475 (store_decomp_type): Remove.
1476 (cp_finish_decomp): Use hash_map_safe_put.
1477 * error.c: Remove constraint printing code.
1478 (dump_decl): Dump concept definitions. Handle wildcard declarations.
1479 (dump_template_decl): Likewise.
1480 (dump_type): Print associated requirements for placeholder
1482 (rebuild_concept_check): New.
1483 (maybe_print_single_constraint_context): New.
1484 (maybe_print_constraint_context): Recursively print nested contexts.
1485 * init.c (get_nsdmi): Use hash_map_safe_*.
1486 * lambda.c (maybe_add_lambda_conv_op): Bail if deduction failed.
1487 (add_capture): Copy parameter packs from init.
1488 (lambda_capture_field_type): Always use auto for init-capture.
1489 * logic.cc: Completely rewrite.
1490 (constraint_hash): New.
1491 (clause/ctor): Save atoms in the hash table.
1492 (replace): Save atoms during replacement.
1493 (insert): Save atoms during insertion.
1494 (contains): Only search the hash table for containment.
1495 (clause): Keep a hash of atomic constraints.
1496 (clause::clause): Explicitly copy the hash table when copying.
1497 (disjunction_p, conjunction_p, atomic_p, dnf_size, cnf_size): New.
1498 (diagnose_constraint_size): New.
1499 (subsumes_constraints_nonnull): Compare the sizes of normalized formula
1500 to determine the cheapest decomposition.
1501 * name-lookup.c (diagnose_name_conflict): Diagnose name issues with
1503 (matching_fn_p): Check constraints.
1504 (push_class_level_binding_1): Move overloaded functions case down,
1505 accept FUNCTION_DECL as target_decl.
1506 * parser.c (enum required_token): New required token for auto.
1507 (make_location): Add overload taking lexer as last parm.
1508 (cp_parser_required_error): Diagnose missing auto.
1509 (cp_parser_diagnose_ungrouped_constraint_plain): New.
1510 (cp_parser_diagnose_ungrouped_constraint_plain): New.
1511 (cp_parser_constraint_primary_expression): New. Tentatively parse the
1512 primary expression. If that fails tentatively parse a lower
1513 precedence expression in order to diagnose the error.
1514 (cp_parser_check_non_logical_constraint): New. Performs a trial
1515 parse of the right-hand-side of non-logical operators in order to
1516 generate good diagnostics.
1517 (cp_parser_constraint_logical_and_expression): New.
1518 (cp_parser_constraint_logical_or_expression): New.
1519 (cp_parser_requires_clause_expression): New.
1520 (cp_parser_requires_clause): Renamed to cp_parser_constraint_expression.
1521 (cp_parser_requires_clause_opt): Parse the requires-clause differently
1522 in -fconcepts and -std=c++2a modes.
1523 (cp_parser_requirement_list): Rename to cp_parser_requirement_seq.
1524 Rewrite so that semicolons are parsed
1525 along with requirements, not the sequence.
1526 (cp_parser_simple_requirement): Expect a semicolon at end.
1527 (cp_parser_compound_requirement): Expect a semicolon at end. Only
1528 allow trailing-return-type with -fconcepts-ts.
1529 (cp_parser_nested_requirement): Expect a semicolon at end. Parse
1530 constraint-expressions.
1531 (cp_parser_concept_definition): New. Don't fail parsing the concept
1532 definition if the initializer is ill-formed. Don't declare the concept
1533 before parsing the initializer.
1534 (cp_parser_constraint_expression): Declare earlier.
1535 (cp_parser_type_requirement): Current scope is not valid.
1536 (cp_parser_requires_expression): Commit to the tentative parse.
1537 (cp_parser_decl_specifier_seq): Warn when concept appears to be used
1538 as a decl-specifier.
1539 (cp_parser_template_declaration_after_parameters): Parse concept
1541 (cp_parser_template_id): Don't try to resolve a concept template-id yet.
1542 (cp_parser_template_id_expr): Resolve it as a concept check.
1543 (cp_parser_decl_specifier_seq): Warn on 'concept bool'.
1544 (cp_parser_type_parameter): Combine expressions not
1546 (cp_parser_explicit_template_declaration): Combine expressions not
1548 (cp_parser_maybe_concept_name): Removed.
1549 (cp_parser_simple_type_specifier): Handle an error condition of
1550 a bad constrained type specifier. Expect auto or decltype after
1551 a concept name. Also handle the case where we have a template-id
1553 (cp_parser_template_introduction): Diagnose errors on invalid
1554 introductions. Give up if it doesn't start with a concept name.
1555 Pedwarn if not -fconcepts-ts.
1556 (synthesize_implicit_template_parm): Don't do consistent binding.
1557 Use a new flag for constrained parameters. Combine expressions,
1558 not constraints. Fail if we get a placeholder in block scope.
1559 Placeholders that do not constrain types are not allowed in parameter
1560 declarations, so don't handle them.
1561 (cp_parser_placeholder_type_specifier): New. Implement parsing of
1562 placeholder type specifiers following a concept name or partial
1563 concept check. Disallow decltype(auto) parameters.
1564 (cp_parser_nested_name_specifier_opt): If the token is already
1565 CPP_NESTED_NAME_SPECIFIER, leave it alone.
1566 (cp_parser_id_expression, cp_parser_unqualified_id): Call
1567 cp_parser_template_id_expr.
1568 (cp_parser_placeholder_type_specifier): Add tentative parm. Don't
1569 expect a WILDCARD_DECL.
1570 (cp_parser_trait_expr): Pass trait_loc down.
1571 (cp_parser_postfix_expression): Do set location of dependent member
1573 * pt.c (finish_concept_definition): New.
1574 (push_template_decl_real): Handle concept definitions.
1575 (start_concept_definition): Let push_template_decl_real handle the
1576 creation of the template.
1577 (get_constraints): Return null if the table hasn't been initialized.
1578 (tsubst_copy_and_build): Build template-id expressions for concept
1580 [TRAIT_EXPR]: Pass trait_loc down.
1581 (lookup_template_class_1): Add the template name to the constraint
1583 (lookup_and_finish_template_variable): Build concept checks
1584 with the correct arguments.
1585 (tsubst_function_decl): Don't substitute through constraints.
1586 Always associate constraints with functions.
1587 (template_parm_level_and_index): Make non-static.
1588 (for_each_template_parm_r): Handle requires expressions.
1589 (keep_template_parm): New.
1590 (find_template_parameters): New.
1591 (more_specialized_fn): Change how winners and losers are chosen.
1592 (make_constrained_auto): Don't normalize constraints.
1593 (template_parameters_equivalent_p): New. Compare template
1594 parameters. Add a comparison for implicitly vs. explicitly declared
1596 (template_parameter_lists_equivalent_p): New. Compare template
1598 (template_requirements_equivalent_p): New.
1599 (template_heads_equivalent_p): New. Compare template heads.
1600 (template_parameter_constraints_equivalent_p): New.
1601 (is_compatible_template_arg): Use weakly_subsumes.
1602 (maybe_new_partial_specialization): Use new constraint comparison
1603 for finding specializations.
1604 (process_partial_specialization): Pass main template as argument.
1605 (more_specialized_partial_spec): Don't immediately return when
1607 (make_constrained_auto): Handle concept definitions.
1608 (do_auto_deduction): Update auto deduction for new concept model.
1609 Extract the function concept correctly; rename constr to check to
1610 reflect the kind of node.
1611 (tsubst): Adjust wildcard argument during substitution.
1612 [DECLTYPE_TYPE]: Remove init-capture handling.
1613 (tsubst_copy_and_build): Build concept checks, not template ids.
1614 Defer checks of function concepts. Handle concepts before variable
1615 templates. Handle calls to function concepts explicitly.
1616 (coerce_template_parms): Use concept_definition_p. Handle a deduction
1617 error where a potentially empty pack can be supplied after the last
1618 parameter of a concept.
1619 (finish_template_variable): Don't process concepts here.
1620 (instantiation_dependent_r): Use concept_check_p.
1621 (tsubst_template_args): Make non-static.
1622 (make_constrained_placeholder_type): New. Refactored from
1623 make_constrained_auto.
1624 (make_constrained_auto) Use make_constrained_placeholder_type.
1625 (make_constrained_decltype_auto) New.
1626 (tsubst_function_parms): New.
1627 (value_dependent_expression_p) [TEMPLATE_ID_EXPR]: Use
1628 concept_definition_p.
1629 (push_access_scope, pop_access_scope): No longer static.
1630 (tsubst_template_parm): Substitute TEMPLATE_PARM_CONSTRAINTS.
1631 (tsubst_friend_function): Use tsubst_constraint. Use generic_targs_for.
1632 (get_underlying_template) Use generic_targs_for.
1633 (uses_parameter_packs): Return tree.
1634 (gen_elem_of_pack_expansion_instantiation): Don't push
1635 local_specialization_stack.
1636 (prepend_one_capture): New.
1637 (tsubst_lambda_expr): Use prepend_one_capture. Don't touch
1638 local_specializations.
1639 (template_parms_level_to_args): No longer static.
1640 (add_outermost_template_args): Likewise.
1641 (find_template_parameter_info): New. Provide context for finding
1642 template parameters.
1643 (keep_template_parm): Don't keep parameters declared at depth levels
1644 greater than those of the template parameters of the source declaration.
1645 Don't propagate cv-qualified types. Return 0, so we find all template
1646 parameters, not the just first.
1647 (any_template_parm_r): New. Handle cases that are mishandled by
1648 for_each_template_parm_r.
1649 (generic_targs_for): Factor out of coerce_template_args_for_ttp.
1650 (tsubst_argument_pack): Factor out of tsubst_template_args.
1651 (constraint_sat_entry): Removed.
1652 (constraint_sat_hasher): Removed.
1653 (concept_spec_entry): Removed.
1654 (concept_spec_hasher): Removed.
1655 (constraint_memos): Removed.
1656 (concept_memos): Removed.
1657 (lookup_constraint_satisfaction): Removed.
1658 (memoize_constraint_satisfaction): Removed.
1659 (lookup_concept_satisfaction): Removed.
1660 (memoize_concept_satisfaction): Removed.
1661 (concept_expansions): Removed.
1662 (get_concept_expansion): Removed.
1663 (save_concept_expansion): Removed.
1664 (init_constraint_processing): Remove initialization of non-existing
1666 (find_template_requirement): New. Search for the sub-requirement
1667 within the associated constraints.
1668 (convert_generic_types_to_packs): Also transform the associated
1669 constraint and update the current template requirements.
1670 (store_defaulted_ttp, lookup_defaulted_ttp): Remove.
1671 (add_defaults_to_ttp): Use hash_map_safe_*.
1672 * semantics.c (finish_call_expr): Diagnose calls to concepts.
1673 Handle concept checks explicitly.
1674 (finish_id_expression): Evaluate variable concepts as part of
1675 id-expression processing. Don't treat variable concepts as variables,
1676 and don't process function concepts as plain id-expressions.
1677 (force_paren_expr): Add even_uneval parm.
1678 (finish_trait_expr): Add location parm.
1679 * tree.c (special_memfn_p): New.
1680 (cp_expr_location): Handle TRAIT_EXPR.
1681 * typeck.c (check_return_expr): Actually use the diagnostic kind
1682 when performing return-type deduction.
1683 * typeck2.c (build_functional_cast): Don't rely on the location of
1686 2019-10-09 Paolo Carlini <paolo.carlini@oracle.com>
1688 * decl.c (grok_ctor_properties): Use DECL_SOURCE_LOCATION.
1689 * typeck.c (cp_build_binary_op): Use the op_location_t argument
1690 in many error messages.
1692 2019-10-08 Martin Sebor <msebor@redhat.com>
1695 * call.c (maybe_warn_class_memaccess): Handle arrays.
1697 2019-10-07 Paolo Carlini <paolo.carlini@oracle.com>
1699 * call.c (resolve_args): Use cp_expr_loc_or_input_loc in one place.
1700 * decl.c (grokdeclarator): Use id_loc in one place.
1701 * decl2.c (build_anon_union_vars): Use DECL_SOURCE_LOCATION.
1702 * parser.c (cp_parser_delete_expression): Fix the location of the
1703 returned expression.
1704 (cp_parser_throw_expression): Likewise.
1705 * pt.c (determine_specialization): Use DECL_SOURCE_LOCATION.
1707 2019-10-05 Jakub Jelinek <jakub@redhat.com>
1709 PR c++/91369 - Implement P0784R7: constexpr new
1710 * cp-tree.h (enum cp_tree_index): Add CPTI_HEAP_UNINIT_IDENTIFIER,
1711 CPTI_HEAP_IDENTIFIER and CPTI_HEAP_DELETED_IDENTIFIER.
1712 (heap_uninit_identifier, heap_identifier, heap_deleted_identifier):
1714 (type_has_constexpr_destructor, build_new_constexpr_heap_type,
1715 cxx_constant_dtor): Declare.
1716 * class.c (type_maybe_constexpr_default_constructor): Make static.
1717 (type_maybe_constexpr_destructor, type_has_constexpr_destructor): New
1719 (finalize_literal_type_property): For c++2a, don't clear
1720 CLASSTYPE_LITERAL_P for types without trivial destructors unless they
1721 have non-constexpr destructors.
1722 (explain_non_literal_class): For c++2a, complain about non-constexpr
1723 destructors rather than about non-trivial destructors.
1724 * constexpr.c: Include stor-layout.h.
1725 (struct constexpr_global_ctx): New type.
1726 (struct constexpr_ctx): Add global field, remove values and
1727 constexpr_ops_count.
1728 (cxx_replaceable_global_alloc_fn): New inline function.
1729 (cxx_eval_call_expression): For c++2a allow calls to replaceable
1730 global allocation functions, for new return address of a heap uninit
1731 var, for delete record its deletion. Change ctx->values->{get,put} to
1732 ctx->global->values.{get,put}.
1733 (non_const_var_error): Add auto_diagnostic_group sentinel. Emit
1734 special diagnostics for heap variables.
1735 (cxx_eval_store_expression): Change ctx->values->{get,put} to
1736 ctx->global->values.{get,put}.
1737 (cxx_eval_loop_expr): Initialize jump_target if NULL. Change
1738 new_ctx.values->remove to ctx->global->values.remove.
1739 (cxx_eval_constant_expression): Change *ctx->constexpr_ops_count
1740 to ctx->global->constexpr_ops_count. Change ctx->values->{get,put} to
1741 ctx->global->values.{get,put}.
1742 <case NOP_EXPR>: Formatting fix. On cast of replaceable global
1743 allocation function to some pointer type, adjust the type of
1744 the heap variable and change name from heap_uninit_identifier
1746 (find_heap_var_refs): New function.
1747 (cxx_eval_outermost_constant_expr): Add constexpr_dtor argument,
1748 handle evaluation of constexpr dtors and add tracking of heap
1749 variables. Use tf_no_cleanup for get_target_expr_with_sfinae.
1750 (cxx_constant_value): Adjust cxx_eval_outermost_constant_expr caller.
1751 (cxx_constant_dtor): New function.
1752 (maybe_constant_value, fold_non_dependent_expr_template,
1753 maybe_constant_init_1): Adjust cxx_eval_outermost_constant_expr
1755 (potential_constant_expression_1): Ignore clobbers. Allow
1756 COND_EXPR_IS_VEC_DELETE for c++2a.
1757 * decl.c (initialize_predefined_identifiers): Add heap identifiers.
1758 (decl_maybe_constant_destruction): New function.
1759 (cp_finish_decl): Don't clear TREE_READONLY for constexpr variables
1760 with non-trivial, but constexpr destructors.
1761 (register_dtor_fn): For constexpr variables with constexpr non-trivial
1762 destructors call cxx_maybe_build_cleanup instead of adding destructor
1764 (expand_static_init): For constexpr variables with constexpr
1765 non-trivial destructors call cxx_maybe_build_cleanup.
1766 (grokdeclarator): Allow constexpr destructors for c++2a. Formatting
1768 (cxx_maybe_build_cleanup): For constexpr variables with constexpr
1769 non-trivial destructors call cxx_constant_dtor instead of adding
1770 destructor calls at runtime.
1771 * init.c: Include stor-layout.h.
1772 (build_new_constexpr_heap_type, maybe_wrap_new_for_constexpr): New
1774 (build_new_1): For c++2a and new[], add cast around the alloc call
1775 to help constexpr evaluation figure out the type of the heap storage.
1776 (build_vec_delete_1): Set DECL_INITIAL of tbase and emit a DECL_EXPR
1777 for it instead of initializing an uninitialized variable.
1778 * method.c: Include intl.h.
1779 (SFK_CTOR_P, SFK_DTOR_P, SFK_ASSIGN_P, SFK_COPY_P, SFK_MOVE_P): Move
1780 definitions earlier.
1781 (process_subob_fn): Add sfk argument, adjust non-constexpr call
1782 diagnostics based on it.
1783 (walk_field_subobs): Formatting fixes. Adjust process_subob_fn caller.
1784 (synthesized_method_base_walk): Likewise.
1785 (synthesized_method_walk): Set *constexpr_p to true for dtors in c++2a.
1786 Fix up DR number in comment.
1787 (implicitly_declare_fn): Formatting fix.
1788 * typeck2.c (store_init_value): Don't call cp_fully_fold_init on
1789 initializers of automatic non-constexpr variables in constexpr
1792 2019-10-04 Jakub Jelinek <jakub@redhat.com>
1795 * constexpr.c (cxx_fold_indirect_ref_1): New function.
1796 (cxx_fold_indirect_ref): Use it.
1799 * cp-gimplify.c (cp_gimplify_expr) <case CALL_EXPR>: For
1800 -fstrong-eval-order ensure CALL_EXPR_FN side-effects are evaluated
1801 before any arguments. Additionally, ensure CALL_EXPR_FN that isn't
1802 invariant nor OBJ_TYPE_REF nor SSA_NAME is forced into a temporary.
1804 2019-10-03 Paolo Carlini <paolo.carlini@oracle.com>
1806 * init.c (build_new): Use cp_expr_loc_or_input_loc in two places.
1807 * name-lookup.c (do_pushdecl): Use DECL_SOURCE_LOCATION.
1808 (push_class_level_binding_1): Likewise.
1809 (set_decl_namespace): Likewise.
1811 2019-10-03 Jakub Jelinek <jakub@redhat.com>
1813 * constexpr.c (cxx_eval_constant_expression) <case CLEANUP_STMT>: If
1814 not skipping upon entry to body, run cleanup with the same *jump_target
1815 as it started to run the cleanup even if the body returns, breaks or
1817 (potential_constant_expression_1): Allow CLEANUP_STMT.
1819 * constexpr.c (cxx_eval_store_expression): Formatting fix. Handle
1820 const_object_being_modified with array type.
1822 2019-10-02 Jason Merrill <jason@redhat.com>
1824 * typeck2.c (store_init_value): Only clear_cv_and_fold_caches if the
1827 2019-09-30 Jason Merrill <jason@redhat.com>
1829 Use hash_map_safe_* functions.
1830 * constexpr.c (maybe_initialize_fundef_copies_table): Remove.
1831 (get_fundef_copy): Use hash_map_safe_get_or_insert.
1832 * cp-objcp-common.c (cp_get_debug_type): Use hash_map_safe_*.
1833 * decl.c (store_decomp_type): Remove.
1834 (cp_finish_decomp): Use hash_map_safe_put.
1835 * init.c (get_nsdmi): Use hash_map_safe_*.
1836 * pt.c (store_defaulted_ttp, lookup_defaulted_ttp): Remove.
1837 (add_defaults_to_ttp): Use hash_map_safe_*.
1839 2019-10-02 Richard Biener <rguenther@suse.de>
1842 * decl.c (build_ptrmemfunc_type): Mark pointer-to-member
1843 fat pointer structure members as DECL_NONADDRESSABLE_P.
1845 2019-09-28 Marek Polacek <polacek@redhat.com>
1847 PR c++/91889 - follow-up fix for DR 2352.
1848 * call.c (involves_qualification_conversion_p): New function.
1849 (direct_reference_binding): Build a ck_qual if the conversion
1850 would involve a qualification conversion.
1851 (convert_like_real): Strip the conversion created by the ck_qual
1852 in direct_reference_binding.
1854 PR c++/91921 - stray warning with -Woverloaded-virtual.
1855 * class.c (warn_hidden): Only emit the second part of
1856 -Woverloaded-virtual if the first part was issued. Use inform instead
1859 PR c++/91923 - failure-to-SFINAE with class type NTTP in C++17.
1860 * pt.c (invalid_nontype_parm_type_p): Only emit errors when
1863 2019-09-27 Jakub Jelinek <jakub@redhat.com>
1866 * parser.c (cp_parser_omp_var_list_no_open): Parse predefined
1868 * semantics.c (finish_omp_clauses): Allow predefined variables in
1869 shared and firstprivate clauses, even when they are predetermined
1871 * cp-gimplify.c (cxx_omp_predetermined_sharing_1): Return
1872 OMP_CLAUSE_DEFAULT_SHARED for predefined variables.
1874 2019-09-27 Jason Merrill <jason@redhat.com>
1876 * constexpr.c (cxx_fold_indirect_ref): Use similar_type_p.
1877 (cxx_eval_indirect_ref): Likewise. Improve error location.
1879 * cp-tree.h (class iloc_sentinel): New.
1880 * decl.c (grokdeclarator, finish_enum_value_list): Use it.
1881 * mangle.c (mangle_decl_string): Use it.
1882 * pt.c (perform_typedefs_access_check): Use it.
1884 2019-09-27 Richard Sandiford <richard.sandiford@arm.com>
1886 * cp-tree.h (build_cxx_call): Take the original function decl
1887 as an optional final parameter.
1888 (cp_build_function_call_vec): Likewise.
1889 * call.c (build_cxx_call): Likewise. Pass all built-in calls to
1890 check_builtin_function_arguments.
1891 * typeck.c (build_function_call_vec): Take the original function
1892 decl as an optional final parameter and pass it to
1893 cp_build_function_call_vec.
1894 (cp_build_function_call_vec): Take the original function
1895 decl as an optional final parameter and pass it to build_cxx_call.
1897 2019-09-25 Marek Polacek <polacek@redhat.com>
1899 PR c++/91877 - ICE with converting member of packed struct.
1900 * call.c (convert_like_real): Use similar_type_p in an assert.
1902 2019-09-25 Paolo Carlini <paolo.carlini@oracle.com>
1904 * name-lookup.c (check_extern_c_conflict): Use DECL_SOURCE_LOCATION.
1905 (check_local_shadow): Use it in three additional places.
1907 2019-09-24 Jason Merrill <jason@redhat.com>
1909 * parser.c (cp_parser_postfix_expression): Do set location of
1910 dependent member call.
1912 2019-09-24 Marek Polacek <polacek@redhat.com>
1914 PR c++/91868 - improve -Wshadow location.
1915 * name-lookup.c (check_local_shadow): Use DECL_SOURCE_LOCATION
1916 instead of input_location.
1918 PR c++/91845 - ICE with invalid pointer-to-member.
1919 * expr.c (mark_use): Use error_operand_p.
1920 * typeck2.c (build_m_component_ref): Check error_operand_p after
1921 calling mark_[lr]value_use.
1923 2019-09-23 Paolo Carlini <paolo.carlini@oracle.com>
1925 * pt.c (check_explicit_specialization): Use cp_expr_loc_or_input_loc.
1926 (process_partial_specialization): Likewise.
1927 (convert_nontype_argument_function): Likewise.
1928 (invalid_tparm_referent_p): Likewise.
1929 (convert_template_argument): Likewise.
1930 (check_valid_ptrmem_cst_expr): Tidy.
1932 2019-09-23 Jason Merrill <jason@redhat.com>
1934 PR c++/91809 - bit-field and ellipsis.
1935 * call.c (convert_arg_to_ellipsis): Don't call decay_conversion for
1936 arithmetic arguments.
1938 2019-09-23 Marek Polacek <polacek@redhat.com>
1940 PR c++/91844 - Implement CWG 2352, Similar types and reference binding.
1941 * call.c (reference_related_p): Use similar_type_p instead of
1943 (reference_compatible_p): Update implementation to match CWG 2352.
1944 * cp-tree.h (similar_type_p): Declare.
1945 * typeck.c (similar_type_p): New.
1947 2019-09-22 Marek Polacek <polacek@redhat.com>
1949 PR c++/91819 - ICE with operator++ and enum.
1950 * call.c (build_new_op_1): Set arg2_type.
1952 2019-09-17 Jason Merrill <jason@redhat.com>
1954 * parser.c (cp_parser_statement): Handle [[likely]] on
1957 2019-09-19 Jason Merrill <jason@redhat.com>
1960 * call.c (build_new_op_1): Don't apply any standard conversions to
1961 the operands of a built-in operator. Don't suppress conversions in
1963 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
1965 2019-09-16 Paolo Carlini <paolo.carlini@oracle.com>
1967 * decl.c (grokdeclarator): Use declspecs->locations and
1968 declarator->id_loc in a few error messages.
1969 * pt.c (finish_member_template_decl): Use DECL_SOURCE_LOCATION.
1970 (push_template_decl_real): Likewise.
1972 2019-09-15 Jason Merrill <jason@redhat.com>
1974 PR c++/30277 - int-width bit-field promotion.
1975 PR c++/33819 - long bit-field promotion.
1976 * typeck.c (cp_perform_integral_promotions): Handle large bit-fields
1977 properly. Handle 32-bit non-int bit-fields properly.
1978 (is_bitfield_expr_with_lowered_type): Don't look through NOP_EXPR.
1980 PR c++/82165 - enum bitfields and operator overloading.
1981 * call.c (build_new_op_1): Use unlowered_expr_type.
1983 * call.c (build_new_op_1): Don't apply any standard conversions to
1984 the operands of a built-in operator. Don't suppress conversions in
1986 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
1988 2019-09-15 Marek Polacek <polacek@redhat.com>
1990 PR c++/91740 - ICE with constexpr call and ?: in ARRAY_REF.
1991 * pt.c (build_non_dependent_expr): Call build_non_dependent_expr for
1994 2019-09-15 Nathan Sidwell <nathan@acm.org>
1996 * cp-tree.h (DECL_CLONED_FUNCTION_P): Reimplement using
1997 IDENTIFIER_CDTOR_P, correct documentation.
1998 (DECL_CLONED_FUNCTION): Directly access field.
1999 (decl_cloned_function_p): Delete.
2000 * class.c (decl_cloned_function_p): Delete.
2001 * pt.c (instantiate_template_1): Check DECL_CHAIN is a decl.
2003 2019-09-11 Nathan Sidwell <nathan@acm.org>
2005 * c-objcp-common.c (cp-objcp-common.c): Alphababetize and
2006 correctly mark all C++ nodes.
2007 * decl.c (cp_tree_node_structure): Alphabetize.
2009 2019-09-10 Marek Polacek <polacek@redhat.com>
2011 PR c++/91673 - ICE with noexcept in alias-declaration.
2012 * parser.c (CP_PARSER_FLAGS_DELAY_NOEXCEPT): New parser flag.
2013 (cp_parser_lambda_declarator_opt): Pass CP_PARSER_FLAGS_NONE to
2014 cp_parser_exception_specification_opt.
2015 (cp_parser_direct_declarator): Adjust a call to
2016 cp_parser_exception_specification_opt.
2017 (cp_parser_member_declaration): Pass CP_PARSER_FLAGS_DELAY_NOEXCEPT
2018 to cp_parser_declarator if not processing a friend or typedef
2020 (cp_parser_late_noexcept_specifier): Adjust a call to
2021 cp_parser_noexcept_specification_opt.
2022 (cp_parser_noexcept_specification_opt): New parameter for parser flags,
2023 drop the FRIEND_P parameter. Use the new parameter.
2024 (cp_parser_exception_specification_opt): Likewise.
2025 (cp_parser_transaction): Adjust a call to
2026 cp_parser_noexcept_specification_opt.
2027 (cp_parser_transaction_expression): Likewise.
2029 2019-09-10 Marek Polacek <polacek@redhat.com>
2031 PR c++/91705 - constexpr evaluation rejects ++/-- on floats.
2032 * constexpr.c (cxx_eval_increment_expression): Call fold_simple on
2035 2019-09-10 Paolo Carlini <paolo.carlini@oracle.com>
2037 * decl.c (has_designator_problem): Use cp_expr_loc_or_input_loc
2039 (build_enumerator): Likewise.
2040 (cp_finish_decl): Use DECL_SOURCE_LOCATION.
2041 (grokdeclarator): Use id_loc in two error_at; change errror
2042 message about constinit together constexpr to use two ranges.
2044 2019-09-09 Marek Polacek <polacek@redhat.com>
2046 PR c++/84374 - diagnose invalid uses of decltype(auto).
2047 * decl.c (grokdeclarator): Diagnose wrong usage of decltype(auto) in
2048 a function declaration.
2050 2019-09-06 Nathan Sidwell <nathan@acm.org>
2053 * cp-tree.h (IDENTIFIER_REPO_CHOSEN, DECL_REPO_AVAILABLE_P): Delete.
2054 (struct lang_decl_base): Remove repo_available_p.
2055 * decl.c (duplicate_decls): Don't copy DECL_REPO_AVAILABLE_P.
2057 (Reserve TREE_LANG_FLAG_3 for modules.
2058 * cp-tree.h (DECL_CONSTRUCTION_VTABLE_P): Delete.
2059 (DECL_NON_TRIVIALLY_INITIALIZED_P): Move to TREE_LANG_FLAG_6.
2060 * class.c (build_ctor_vtbl_group): Don't set
2061 DECL_CONSTRUCTION_VTABLE_P.
2062 * decl2.c (determine_visibility_from_class): Don't check
2063 DECL_CONSTRUCTION_VTABLE_P anymore.
2065 2019-09-06 Martin Liska <mliska@suse.cz>
2068 * Make-lang.in: Remove repo.o.
2069 * config-lang.in: Likewise.
2070 * cp-tree.h (init_repo): Remove declarations
2071 of repo-related functions.
2072 (repo_emit_p): Likewise.
2073 (repo_export_class_p): Likewise.
2074 (finish_repo): Likewise.
2075 * decl2.c (import_export_class): Always
2077 (mark_needed): Remove -frepo from comment.
2078 (import_export_decl): Similarly here.
2079 (c_parse_final_cleanups): Remove call of finish_repo.
2080 * lex.c (cxx_init): Remove call to init_repo.
2081 * optimize.c (can_alias_cdtor): Remove dead condition.
2082 * pt.c (push_template_decl_real): Update comment.
2083 (instantiate_decl): Remove dead code used for -frepo.
2086 2019-09-05 Marek Polacek <polacek@redhat.com>
2088 PR c++/91644 - ICE with constinit in function template.
2089 * decl.c (start_decl): Call retrofit_lang_decl for constinit variables.
2090 * pt.c (tsubst_expr): Pass LOOKUP_CONSTINIT down to cp_finish_decl for
2091 constinit variables.
2093 2019-09-05 Nathan Sidwell <nathan@acm.org>
2095 * cp-tree.h (DECL_VTABLE_OR_VTT_P): Forward to DECL_VIRTUAL_P.
2097 2019-09-04 Marek Polacek <polacek@redhat.com>
2099 * call.c (build_over_call): Remove -fdeduce-init-list implementation.
2100 * pt.c (unify): Likewise.
2102 2019-09-01 Marek Polacek <polacek@redhat.com>
2104 PR c++/91129 - wrong error with binary op in template argument.
2105 * typeck.c (warn_for_null_address): Use fold_for_warn instead of
2106 fold_non_dependent_expr.
2107 (cp_build_binary_op): Likewise.
2109 2019-08-30 Jason Merrill <jason@redhat.com>
2111 Add source location to TRAIT_EXPR.
2112 * cp-tree.h (TRAIT_EXPR_LOCATION): New.
2113 (struct tree_trait_expr): Add locus field.
2114 * parser.c (cp_parser_trait_expr): Pass trait_loc down.
2115 * pt.c (tsubst_copy_and_build) [TRAIT_EXPR]: Likewise.
2116 * semantics.c (finish_trait_expr): Add location parm.
2117 * tree.c (cp_expr_location): Handle TRAIT_EXPR.
2119 2019-08-29 Paolo Carlini <paolo.carlini@oracle.com>
2121 * decl.c (check_var_type): Add location_t parameter and use it.
2122 (grokdeclarator): Adjust call.
2123 * pt.c (tsubst_decl): Likewise.
2124 * cp-tree.h: Adjust declaration.
2126 2019-08-28 Marek Polacek <polacek@redhat.com>
2128 Implement P1152R4: Deprecating some uses of volatile.
2130 * cp-gimplify.c (cp_fold): Set TREE_THIS_VOLATILE.
2131 * decl.c (grokdeclarator): Warn about a volatile-qualified structured
2132 binding and return type.
2133 (grokparms): Warn about a volatile-qualified function parameter.
2134 * expr.c (mark_use) <case MODIFY_EXPR>: Emit a -Wvolatile warning.
2135 * typeck.c (cp_build_unary_op): Emit a -Wvolatile warning for pre and
2136 post ++/-- on a volatile operand.
2137 (genericize_compound_lvalue): Use a better location. Don't lose
2139 (cp_build_modify_expr): Emit a -Wvolatile warning for a compound
2140 assignment whose LHS is volatile-qualified. Build the assignment with
2141 a more precise location.
2143 2019-08-28 Marek Polacek <polacek@redhat.com>
2145 PR c++/91360 - Implement C++20 P1143R2: constinit.
2146 * cp-tree.h (TINFO_VAR_DECLARED_CONSTINIT): Define.
2147 (LOOKUP_CONSTINIT): Define.
2148 (enum cp_decl_spec): Add ds_constinit.
2149 * decl.c (check_tag_decl): Give an error for constinit in type
2151 (check_initializer): Also check LOOKUP_CONSTINIT.
2152 (cp_finish_decl): Add checking for a constinit declaration. Set
2153 TINFO_VAR_DECLARED_CONSTINIT.
2154 (grokdeclarator): Add checking for a declaration with the constinit
2156 * lex.c (init_reswords): Handle D_CXX20.
2157 * parser.c (cp_lexer_get_preprocessor_token): Pass a better location
2158 to warning_at. Warn about C++20 keywords.
2159 (cp_keyword_starts_decl_specifier_p): Handle RID_CONSTINIT.
2160 (cp_parser_diagnose_invalid_type_name): Add an inform about constinit.
2161 (cp_parser_decomposition_declaration): Maybe pass LOOKUP_CONSTINIT to
2163 (cp_parser_decl_specifier_seq): Handle RID_CONSTINIT.
2164 (cp_parser_init_declarator): Maybe pass LOOKUP_CONSTINIT to
2166 (set_and_check_decl_spec_loc): Add "constinit".
2167 * pt.c (tsubst_decl): Set TINFO_VAR_DECLARED_CONSTINIT.
2168 (instantiate_decl): Maybe pass LOOKUP_CONSTINIT to cp_finish_decl.
2169 * typeck2.c (store_init_value): If a constinit variable wasn't
2170 initialized using a constant initializer, give an error.
2172 2019-08-28 Nathan Sidwell <nathan@acm.org>
2175 * name-lookup.c (cp_emit_debug_info): Check for builtins during
2178 2019-08-27 Marek Polacek <polacek@redhat.com>
2180 PR c++/81676 - bogus -Wunused warnings in constexpr if.
2181 * semantics.c (maybe_mark_exp_read_r): New function.
2182 (finish_if_stmt): Call it on THEN_CLAUSE and ELSE_CLAUSE.
2184 PR c++/91428 - warn about std::is_constant_evaluated in if constexpr.
2185 * cp-tree.h (decl_in_std_namespace_p): Declare.
2186 * semantics.c (is_std_constant_evaluated_p): New.
2187 (finish_if_stmt_cond): Warn about "std::is_constant_evaluated ()" in
2189 * typeck.c (decl_in_std_namespace_p): No longer static.
2191 2019-08-26 Jason Merrill <jason@redhat.com>
2193 * decl.c (duplicate_decls): Always merge DECL_DECLARED_CONSTEXPR_P.
2195 2019-08-26 Marek Polacek <polacek@redhat.com>
2197 PR c++/91545 - ICE in constexpr store evaluation.
2198 * constexpr.c (cxx_eval_store_expression): Check FIELD_DECL instead
2201 2019-08-24 Nathan Sidwell <nathan@acm.org>
2203 * class.c (check_for_overrides): Conversion operators need
2206 2019-08-24 Paolo Carlini <paolo.carlini@oracle.com>
2208 * semantics.c (finish_switch_cond): Improve error message location.
2210 2019-08-23 Jason Merrill <jason@redhat.com>
2212 * decl2.c (decl_dependent_p): New.
2213 (mark_used): Check it instead of just processing_template_decl.
2215 2019-08-23 Jason Merrill <jason@redhat.com>
2217 * parser.c (cp_parser_nested_name_specifier_opt): Avoid redundant
2220 2019-08-23 Marek Polacek <polacek@redhat.com>
2222 PR c++/91521 - wrong error with operator->.
2223 * decl.c (grokdeclarator): Return error_mark_node for an invalid
2224 trailing return type.
2226 PR c++/79817 - attribute deprecated on namespace.
2227 * cp-tree.h (cp_warn_deprecated_use_scopes): Declare.
2228 * decl.c (grokdeclarator): Call cp_warn_deprecated_use_scopes.
2229 (type_is_deprecated): Likewise.
2230 * decl2.c (cp_warn_deprecated_use_scopes): New function.
2231 * name-lookup.c (handle_namespace_attrs): Handle attribute deprecated.
2232 * parser.c (cp_parser_namespace_alias_definition): Call
2233 cp_warn_deprecated_use_scopes.
2234 (cp_parser_using_declaration): Likewise.
2235 (cp_parser_using_directive): Likewise.
2236 * semantics.c (finish_id_expression_1): Likewise.
2238 2019-08-23 Nathan Sidwell <nathan@acm.org>
2240 * class.c (check_for_override): Checking IDENTIFIER_VIRTUAL_P is
2241 sufficient, reorder DECL_OVERRIDE_P check.
2243 2019-08-23 Iain Sandoe <iain@sandoe.co.uk>
2246 * parser.c (cp_parser_initial_pragma): Call c_common_no_more_pch ()
2247 after determining that the first token is not
2248 PRAGMA_GCC_PCH_PREPROCESS.
2250 2019-08-22 Marek Polacek <polacek@redhat.com>
2252 PR c++/91304 - prefix attributes ignored in condition.
2253 * parser.c (cp_parser_condition): Handle prefix attributes.
2255 2019-08-21 Richard Sandiford <richard.sandiford@arm.com>
2258 * decl.c (duplicate_decls): Call copy_attributes_to_builtin inside
2259 the BUILT_IN_NORMAL block rather than afterward.
2261 2019-08-19 Marek Polacek <polacek@redhat.com>
2263 PR c++/91264 - detect modifying const objects in constexpr.
2264 * constexpr.c (modifying_const_object_error): New function.
2265 (cxx_eval_call_expression): Set TREE_READONLY on a CONSTRUCTOR of
2266 a const-qualified object after it's been fully constructed.
2267 (modifying_const_object_p): New function.
2268 (cxx_eval_store_expression): Detect modifying a const object
2269 during constant expression evaluation.
2270 (cxx_eval_increment_expression): Use a better location when building
2272 (cxx_eval_constant_expression) <case DECL_EXPR>: Mark a constant
2273 object's constructor TREE_READONLY.
2275 2019-08-15 Jason Merrill <jason@redhat.com>
2277 PR c++/90393 - ICE with thow in ?:
2279 PR c++/64372, DR 1560 - Gratuitous lvalue-to-rvalue conversion in ?:
2280 * tree.c (lvalue_kind): Handle throw in one arm.
2281 * typeck.c (rationalize_conditional_expr): Likewise.
2282 (cp_build_modify_expr): Likewise.
2284 2019-08-14 Jason Merrill <jason@redhat.com>
2286 Implement P0848R3, Conditionally Trivial Special Member Functions.
2287 * tree.c (special_memfn_p): New.
2288 * class.c (add_method): When overloading, hide ineligible special
2290 (check_methods): Set TYPE_HAS_COMPLEX_* here.
2291 * decl.c (grok_special_member_properties): Not here.
2292 * name-lookup.c (push_class_level_binding_1): Move overloaded
2293 functions case down, accept FUNCTION_DECL as target_decl.
2295 2019-08-14 Jonathan Wakely <jwakely@redhat.com>
2298 * name-lookup.c (get_std_name_hint): Fix min_dialect field for
2299 complex_literals and make_unique entries.
2301 2019-08-14 Jakub Jelinek <jakub@redhat.com>
2302 Marek Polacek <polacek@redhat.com>
2304 PR c++/91391 - bogus -Wcomma-subscript warning.
2305 * parser.c (cp_parser_postfix_open_square_expression): Don't warn about
2306 a deprecated comma here. Pass warn_comma_subscript down to
2307 cp_parser_expression.
2308 (cp_parser_expression): New bool parameter. Warn about uses of a comma
2309 operator within a subscripting expression.
2310 (cp_parser_skip_to_closing_square_bracket): Revert to pre-r274121 state.
2311 (cp_parser_skip_to_closing_square_bracket_1): Remove.
2313 2019-08-14 Jonathan Wakely <jwakely@redhat.com>
2315 * name-lookup.c (get_std_name_hint): Add more entries.
2317 2019-08-14 Paolo Carlini <paolo.carlini@oracle.com>
2319 * decl2.c (grok_array_decl): Use the location of the open square
2320 bracket in error message about invalid types.
2322 2019-08-14 Paolo Carlini <paolo.carlini@oracle.com>
2324 * decl.c (grokdeclarator): Check here for typedef a function
2325 definition or a member function definition.
2326 (start_function): Adjust.
2327 (grokmethod): Likewise.
2329 2019-08-13 Richard Sandiford <richard.sandiford@arm.com>
2332 * decl.c (duplicate_decls): Use copy_decl_built_in_function.
2333 * pt.c (declare_integer_pack): Use set_decl_built_in_function.
2335 2019-08-13 Marek Polacek <polacek@redhat.com>
2337 PR c++/90473 - wrong code with nullptr in default argument.
2338 * call.c (null_ptr_cst_p): Update quote from the standard.
2339 * decl.c (check_default_argument): Don't return nullptr when the arg
2342 2019-08-13 Marek Polacek <polacek@redhat.com>
2344 * cp-tree.h (DECL_MUTABLE_P): Use FIELD_DECL_CHECK.
2346 2019-08-10 Jakub Jelinek <jakub@redhat.com>
2348 * parser.c (cp_parser_omp_clause_name): Parse device_type.
2349 (cp_parser_omp_clause_device_type): New function.
2350 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
2351 (OMP_DECLARE_TARGET_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
2352 (cp_parser_omp_declare_target): Handle device_type clauses. Remove
2353 diagnostics for declare target with clauses nested in clause-less
2354 declare target declaration-definition-seq.
2355 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_DEVICE_TYPE.
2357 2019-08-09 Jakub Jelinek <jakub@redhat.com>
2359 * parser.c (check_no_duplicate_clause): Simplify using
2361 (cp_parser_omp_clause_if): Fix up printing of target {enter,exit} data
2362 directive name modifiers.
2365 * parser.c (cp_parser_omp_clause_dist_schedule): Comment out the
2366 check_no_duplicate_clause call, instead emit a warning for duplicate
2367 dist_schedule clauses.
2369 2019-08-08 Paolo Carlini <paolo.carlini@oracle.com>
2371 * decl.c (grokdeclarator): Use id_loc and EXPR_LOCATION in
2372 a few error messages.
2374 2019-08-08 Marek Polacek <polacek@redhat.com>
2376 PR c++/87519 - bogus warning with -Wsign-conversion.
2377 * typeck.c (cp_build_binary_op): Use same_type_p instead of comparing
2380 * constexpr.c (inline_asm_in_constexpr_error): New.
2381 (cxx_eval_constant_expression) <case ASM_EXPR>: Call it.
2382 (potential_constant_expression_1) <case ASM_EXPR>: Likewise.
2384 2019-08-08 Jakub Jelinek <jakub@redhat.com>
2386 * semantics.c (finish_omp_clauses): For C_ORT_OMP
2387 OMP_CLAUSE_USE_DEVICE_* clauses use oacc_reduction_head bitmap
2388 instead of generic_head to track duplicates.
2390 2019-08-07 Marek Polacek <polacek@redhat.com>
2392 PR c++/81429 - wrong parsing of constructor with C++11 attribute.
2393 * parser.c (cp_parser_constructor_declarator_p): Handle the scenario
2394 when a parameter declaration begins with [[attribute]].
2396 2019-08-07 Marek Polacek <polacek@redhat.com>
2398 PR c++/91346 - Implement P1668R1, allow unevaluated asm in constexpr.
2399 * constexpr.c (cxx_eval_constant_expression): Handle ASM_EXPR.
2400 (potential_constant_expression_1) <case ASM_EXPR>: Allow.
2401 * cp-tree.h (finish_asm_stmt): Adjust.
2402 * parser.c (cp_parser_asm_definition): Grab the locaion of "asm" and
2403 use it. Change an error to a pedwarn. Allow asm in C++2a, warn
2405 * pt.c (tsubst_expr): Pass a location down to finish_asm_stmt.
2406 * semantics.c (finish_asm_stmt): New location_t parameter. Use it.
2408 2019-08-07 Jakub Jelinek <jakub@redhat.com>
2410 * parser.c (cp_parser_omp_clause_name): Parse use_device_addr clause.
2411 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
2412 (OMP_TARGET_DATA_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
2413 (cp_parser_omp_target_data): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR
2414 like PRAGMA_OMP_CLAUSE_USE_DEVICE_PTR, adjust diagnostics about no
2415 map or use_device_* clauses.
2416 * semantics.c (finish_omp_clauses): For OMP_CLAUSE_USE_DEVICE_PTR
2417 in OpenMP, require pointer or reference to pointer type rather than
2418 pointer or array or reference to pointer or array type. Handle
2419 OMP_CLAUSE_USE_DEVICE_ADDR.
2420 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_USE_DEVICE_ADDR.
2422 2019-08-06 Jason Merrill <jason@redhat.com>
2424 PR c++/91378 - ICE with noexcept and auto return type.
2425 * pt.c (maybe_instantiate_noexcept): push_to_top_level.
2427 2019-08-06 Paolo Carlini <paolo.carlini@oracle.com>
2429 * decl.c (check_array_designated_initializer): Use
2430 cp_expr_loc_or_input_loc in one place.
2432 2019-08-06 Jakub Jelinek <jakub@redhat.com>
2434 * parser.c (cp_parser_omp_for_loop): For OMP_LOOP, ignore parallel
2435 clauses and predetermine iterator as lastprivate.
2436 * semantics.c (handle_omp_for_class_iterator): Use
2437 OMP_CLAUSE_LASTPRIVATE_LOOP_IV instead of
2438 OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV, set it for lastprivate also
2439 on OMP_LOOP construct. If a clause is missing for class iterator
2440 on OMP_LOOP, add firstprivate clause, and if there is private
2441 clause, turn it into firstprivate too.
2442 (finish_omp_for): Formatting fix. For OMP_LOOP, adjust
2443 OMP_CLAUSE_LASTPRIVATE_LOOP_IV clause CP_CLAUSE_INFO, so that it
2444 uses copy ctor instead of default ctor.
2445 * cp-gimplify.c (cp_gimplify_expr): Handle OMP_LOOP like
2447 (cp_fold_r): Likewise.
2448 (cp_genericize_r): Likewise.
2449 (cxx_omp_finish_clause): Also finish lastprivate clause with
2450 OMP_CLAUSE_LASTPRIVATE_LOOP_IV flag.
2451 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_BIND.
2452 (tsubst_omp_for_iterator): For OMP_LOOP, ignore parallel
2453 clauses and predetermine iterator as lastprivate.
2454 * constexpr.c (potential_constant_expression_1): Handle OMP_LOOP
2455 like OMP_DISTRIBUTE etc.
2457 2019-08-05 Marek Polacek <polacek@redhat.com>
2459 DR 2413 - typename in conversion-function-ids.
2460 * parser.c (cp_parser_conversion_type_id): Call
2461 cp_parser_type_specifier_seq with CP_PARSER_FLAGS_TYPENAME_OPTIONAL
2462 instead of CP_PARSER_FLAGS_NONE.
2464 2019-08-05 Paolo Carlini <paolo.carlini@oracle.com>
2466 * cp-tree.h (cp_expr_loc_or_input_loc): New.
2467 (cxx_incomplete_type_diagnostic): Use it.
2468 * call.c (build_converted_constant_expr_internal, convert_like_real,
2469 convert_arg_to_ellipsis, convert_for_arg_passing, build_over_call,
2470 build_cxx_call, perform_implicit_conversion_flags,
2471 initialize_reference): Likewise.
2472 * constexpr.c (cxx_eval_internal_function, cxx_eval_call_expression,
2473 eval_and_check_array_index, cxx_eval_store_expression,
2474 cxx_eval_statement_list, cxx_eval_loop_expr,
2475 cxx_eval_constant_expression, potential_constant_expression_1):
2477 * constraint.cc (check_for_logical_overloads,
2478 satisfy_predicate_constraint): Likewise.
2479 * cp-gimplify.c (cp_gimplify_expr): Likewise.
2480 * cvt.c (cp_convert_to_pointer, convert_to_reference,
2481 cp_convert_and_check, ocp_convert, maybe_warn_nodiscard): Likewise.
2482 * decl.c (pop_switch): Likewise.
2483 * decl2.c (delete_sanity): Likewise.
2484 * error.c (location_of): Likewise.
2485 * init.c (maybe_warn_list_ctor, build_aggr_init,
2486 warn_placement_new_too_small, build_new_1, build_vec_init): Likewise.
2487 * lex.c (unqualified_name_lookup_error): Likewise.
2488 * parser.c (cp_parser_initializer_list, cp_parser_omp_for_cond):
2490 * pt.c (check_for_bare_parameter_packs, check_valid_ptrmem_cst_expr,
2491 unify_arg_conversion, convert_nontype_argument,
2492 tsubst_copy_and_build, resolve_typename_type): Likewise.
2493 * semantics.c (maybe_convert_cond, finish_call_expr,
2494 cp_build_vec_convert): Likewise.
2495 * typeck.c (decay_conversion, rationalize_conditional_expr,
2496 cp_build_unary_op, build_x_compound_expr_from_list,
2497 maybe_warn_about_returning_address_of_local,
2498 maybe_warn_pessimizing_move): Likewise.
2499 * typeck2.c (check_narrowing, digest_init_r,
2500 process_init_constructor_array): Likewise.
2502 2019-08-05 Tom Honermann <tom@honermann.net>
2504 * parser.c (cp_parser_template_declaration_after_parameters): Enable
2505 class template argument deduction for non-type template parameters
2506 in literal operator templates.
2508 2019-08-05 Marek Polacek <polacek@redhat.com>
2510 PR c++/91338 - Implement P1161R3: Deprecate a[b,c].
2511 * parser.c (cp_parser_postfix_open_square_expression): Warn about uses
2512 of a comma operator within a subscripting expression.
2513 (cp_parser_skip_to_closing_square_bracket_1): New function, made out
2515 (cp_parser_skip_to_closing_square_bracket): ...this.
2517 2019-08-05 Jason Merrill <jason@redhat.com>
2519 * semantics.c (force_paren_expr): Preserve location.
2521 2019-08-02 Marek Polacek <polacek@redhat.com>
2523 PR c++/91230 - wrong error with __PRETTY_FUNCTION__ and generic lambda.
2524 * pt.c (value_dependent_expression_p): Consider __PRETTY_FUNCTION__
2525 inside a template function value-dependent.
2527 2019-08-02 Paolo Carlini <paolo.carlini@oracle.com>
2529 * tree.c (handle_nodiscard_attribute): Do not warn about nodiscard
2530 applied to a constructor.
2532 2019-08-02 Martin Liska <mliska@suse.cz>
2534 * decl.c (grok_op_properties):
2535 Mark DECL_SET_IS_OPERATOR_DELETE for user-provided delete operators.
2537 2019-08-01 Martin Sebor <msebor@redhat.com>
2540 * decl.c (reshape_init_array_1): Avoid truncating initializer
2541 lists containing string literals.
2543 2019-08-01 Marek Polacek <polacek@redhat.com>
2545 PR c++/90805 - detect narrowing in case values.
2546 * decl.c (case_conversion): Detect narrowing in case values.
2548 2019-07-31 Paolo Carlini <paolo.carlini@oracle.com>
2550 * decl2.c (delete_sanity): Improve diagnostic locations, use
2551 cp_expr_loc_or_loc in four places.
2553 2019-07-31 Jason Merrill <jason@redhat.com>
2555 PR c++/90538 - multiple expansions of capture packs
2556 * cp-tree.h (DECLTYPE_FOR_INIT_CAPTURE): Remove.
2557 * lambda.c (add_capture): Copy parameter packs from init.
2558 (lambda_capture_field_type): Always use auto for init-capture.
2559 * pt.c (uses_parameter_packs): Return tree.
2560 (tsubst) [DECLTYPE_TYPE]: Remove init-capture handling.
2561 (gen_elem_of_pack_expansion_instantiation): Don't push
2562 local_specialization_stack.
2563 (prepend_one_capture): New.
2564 (tsubst_lambda_expr): Use it. Don't touch local_specializations.
2565 (do_auto_deduction): Avoid redundant error.
2567 Fix copy_node of TEMPLATE_INFO.
2568 * cp-tree.h (struct tree_template_info): Use tree_base instead of
2569 tree_common. Add tmpl and args fields.
2570 (TI_TEMPLATE, TI_ARGS): Adjust.
2572 2019-07-30 Martin Liska <mliska@suse.cz>
2574 PR tree-optimization/91270
2575 * tree-ssa-dce.c (propagate_necessity): Mark 2nd argument
2576 of delete operator as needed.
2578 2019-07-25 Martin Liska <mliska@suse.cz>
2579 Dominik Infuhr <dominik.infuehr@theobroma-systems.com>
2582 * decl.c (cxx_init_decl_processing): Mark delete operators
2583 with DECL_SET_IS_OPERATOR_DELETE.
2585 2019-07-25 Martin Liska <mliska@suse.cz>
2587 * decl.c (duplicate_decls): Use new macros
2588 (e.g. DECL_SET_LAMBDA_FUNCTION and DECL_LAMBDA_FUNCTION_P).
2589 (cxx_init_decl_processing): Likewise.
2590 (grok_op_properties): Likewise.
2591 * parser.c (cp_parser_lambda_declarator_opt): Likewise.
2593 2019-07-24 Martin Sebor <msebor@redhat.com>
2596 * decl.c (finish_function): Use lang_mask.
2598 2019-07-20 Jason Merrill <jason@redhat.com>
2600 * cp-tree.h (ovl_iterator::using_p): A USING_DECL by itself was also
2601 introduced by a using-declaration.
2603 2019-07-20 Jason Merrill <jason@redhat.com>
2605 Reduce memory consumption for push/pop_access_scope.
2606 * name-lookup.c (leave_scope): Do add class levels other than
2607 previous_class_level to free_binding_level.
2608 (invalidate_class_lookup_cache): Move from class.c, add to
2610 * pt.c (saved_access_scope): Change from list to vec.
2612 2019-07-20 Jakub Jelinek <jakub@redhat.com>
2614 * cp-tree.h (OMP_FOR_GIMPLIFYING_P): Use OMP_LOOPING_CHECK
2615 instead of OMP_LOOP_CHECK.
2616 * parser.c (cp_parser_omp_clause_name): Handle bind clause.
2617 (cp_parser_omp_clause_bind): New function.
2618 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_BIND.
2619 (OMP_LOOP_CLAUSE_MASK): Define.
2620 (cp_parser_omp_loop): New function.
2621 (cp_parser_omp_parallel, cp_parser_omp_teams): Handle parsing of
2622 loop combined with parallel or teams.
2623 (cp_parser_omp_construct): Handle PRAGMA_OMP_LOOP.
2624 (cp_parser_pragma): Likewise.
2625 * pt.c (tsubst_expr): Handle OMP_LOOP.
2626 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_BIND.
2628 2019-07-19 Jason Merrill <jason@redhat.com>
2630 PR c++/90101 - dependent class non-type parameter.
2631 * pt.c (invalid_nontype_parm_type_p): Check for dependent class type.
2633 2019-07-18 Jason Merrill <jason@redhat.com>
2635 PR c++/90098 - partial specialization and class non-type parms.
2638 * call.c (build_converted_constant_expr_internal): Don't copy.
2639 * pt.c (process_partial_specialization): Allow VIEW_CONVERT_EXPR
2640 around class non-type parameter.
2641 (unify) [TEMPLATE_PARM_INDEX]: Ignore cv-quals.
2643 2019-07-16 Jason Merrill <jason@redhat.com>
2645 * parser.c (make_location): Add overload taking cp_lexer* as last
2648 * parser.c (cp_parser_simple_type_specifier): Separate tentative
2649 parses for optional type-spec and CTAD.
2651 * parser.c (cp_parser_nested_name_specifier_opt): If the token is
2652 already CPP_NESTED_NAME_SPECIFIER, leave it alone.
2654 2019-07-12 Jakub Jelinek <jakub@redhat.com>
2656 * parser.c (cp_parser_omp_clause_name): Handle order clause.
2657 (cp_parser_omp_clause_order): New function.
2658 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_ORDER.
2659 (OMP_SIMD_CLAUSE_MASK, OMP_FOR_CLAUSE_MASK): Add
2660 PRAGMA_OMP_CLAUSE_ORDER.
2661 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_ORDER.
2662 * pt.c (tsubst_omp_clauses): Likewise.
2664 2019-07-10 Paolo Carlini <paolo.carlini@oracle.com>
2666 * decl.c (get_type_quals,
2667 smallest_type_location (const cp_decl_specifier_seq*)): New.
2668 (check_tag_decl): Use smallest_type_location in error_at about
2669 multiple types in one declaration.
2670 (grokdeclarator): Use locations[ds_complex] in error_at about
2671 complex invalid; use locations[ds_storage_class] in error_at
2672 about static cdtor; use id_loc in error_at about flexible
2673 array member in union; use get_type_quals.
2675 2019-07-09 Martin Sebor <msebor@redhat.com>
2678 * cp-tree.h: Change class-key of PODs to struct and others to class.
2680 * semantics.c (finalize_nrv_r): Same.
2682 2019-07-09 Martin Sebor <msebor@redhat.com>
2685 * constexpr.c (cxx_eval_call_expression): Change class-key from class
2686 to struct and vice versa to match convention and avoid -Wclass-is-pod
2687 and -Wstruct-no-pod.
2688 * constraint.cc (get_concept_definition): Same.
2690 * cxx-pretty-print.h: Same.
2692 * logic.cc (term_list::replace): Same.
2693 * name-lookup.c (find_local_binding): Same.
2694 * pt.c (tsubst_binary_right_fold): Same.
2695 * search.c (field_accessor_p): Same.
2696 * semantics.c (expand_or_defer_fn): Same.
2698 2019-07-08 Jakub Jelinek <jakub@redhat.com>
2701 * decl2.c (cp_omp_mappable_type_1): Don't emit any note for
2702 error_mark_node type.
2704 2019-07-05 Jakub Jelinek <jakub@redhat.com>
2708 * call.c (build_new_method_call_1): Remove set but not used variable
2711 2019-07-05 Paolo Carlini <paolo.carlini@oracle.com>
2713 PR c++/67184 (again)
2715 * call.c (build_over_call): Devirtualize user-defined operators
2716 coming from a base too.
2717 (build_new_method_call_1): Do not devirtualize here.
2719 2019-07-04 Marek Polacek <polacek@redhat.com>
2722 PR c++/83374 - __is_standard_layout wrong for a class with repeated
2724 * class.c (check_bases): Set CLASSTYPE_NON_STD_LAYOUT for a class if
2725 CLASSTYPE_REPEATED_BASE_P is true.
2727 2019-07-04 Andrew Stubbs <ams@codesourcery.com>
2729 * cp-tree.h (cp_omp_emit_unmappable_type_notes): New prototype.
2730 * decl.c (cp_finish_decl): Call cp_omp_emit_unmappable_type_notes.
2731 * decl2.c (cp_omp_mappable_type): Move contents to ...
2732 (cp_omp_mappable_type_1): ... here and add note output.
2733 (cp_omp_emit_unmappable_type_notes): New function.
2734 * semantics.c (finish_omp_clauses): Call
2735 cp_omp_emit_unmappable_type_notes in four places.
2737 2019-07-03 Martin Liska <mliska@suse.cz>
2739 * call.c (build_new_op_1): Remove dead assignemts.
2740 * typeck.c (cp_build_binary_op): Likewise.
2742 2019-06-27 Jason Merrill <jason@redhat.com>
2744 PR c++/55442 - memory-hog with highly recursive constexpr.
2745 * constexpr.c (push_cx_call_context): Return depth.
2746 (cxx_eval_call_expression): Don't cache past constexpr_cache_depth.
2748 2019-06-27 Jan Hubicka <jh@suse.cz>
2750 * class.c (layout_class_type): Set TYPE_CXX_ODR_P for as-base
2753 2019-06-27 Martin Liska <mliska@suse.cz>
2755 * class.c (adjust_clone_args): Remove obviously
2757 (dump_class_hierarchy_r): Likewise.
2758 * decl.c (check_initializer): Likewise.
2759 * parser.c (cp_parser_lambda_expression): Likewise.
2760 * pt.c (unify_bound_ttp_args): Likewise.
2761 (convert_template_argument): Likewise.
2762 * rtti.c (build_headof): Likewise.
2763 * typeck.c (convert_for_initialization): Likewise.
2765 2019-06-25 Jason Merrill <jason@redhat.com>
2767 PR c++/70462 - unnecessary base ctor variant with final.
2768 * optimize.c (populate_clone_array): Skip base variant if
2770 (maybe_clone_body): We don't need an alias if we are only defining
2773 * class.c (resolves_to_fixed_type_p): Check CLASSTYPE_FINAL.
2775 2019-06-25 Jakub Jelinek <jakub@redhat.com>
2778 * constexpr.c (cxx_eval_array_reference): Don't look through VCE from
2779 vector type if lval.
2781 2019-06-25 Jozef Lawrynowicz <jozef.l@mittosystems.com>
2783 * lex.c (init_reswords): Create keyword for "__intN__" type.
2784 * cp-tree.h (cp_decl_specifier_seq): New bitfield "int_n_alt".
2785 * decl.c (grokdeclarator): Don't pedwarn about "__intN" ISO
2786 C incompatibility if alternate "__intN__" form is used.
2787 * parser.c (cp_parser_simple_type_specifier): Set
2788 decl_specs->int_n_alt if "__intN__" form is used.
2790 2019-06-24 Jan Hubicka <jh@suse.cz>
2792 * lex.c (cxx_make_type): Set TYPE_CXX_ODR_P.
2794 2019-06-24 Jason Merrill <jason@redhat.com>
2796 * class.c (layout_class_type): Don't use a separate
2797 CLASSTYPE_AS_BASE if it's the same size.
2799 2019-06-23 Marek Polacek <polacek@redhat.com>
2801 * call.c (convert_default_arg): Use DEFERRED_PARSE instead of
2803 * cp-objcp-common.c (cp_tree_size): Likewise. Use tree_deferred_parse
2804 instead of tree_default_arg.
2805 * cp-tree.def: Rename DEFAULT_ARG to DEFERRED_PARSE.
2806 * cp-tree.h: Rename DEFARG_TOKENS to DEFPARSE_TOKENS. Rename
2807 DEFARG_INSTANTIATIONS to DEFPARSE_INSTANTIATIONS. Rename
2808 tree_default_arg to tree_deferred_parse.
2809 (UNPARSED_NOEXCEPT_SPEC_P): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2810 (cp_tree_node_structure_enum): Rename TS_CP_DEFAULT_ARG to
2811 TS_CP_DEFERRED_PARSE.
2812 (lang_tree_node): Rename tree_default_arg to tree_deferred_parse.
2813 Rename default_arg to deferred_parse. Use TS_CP_DEFERRED_PARSE instead
2814 of TS_CP_DEFAULT_ARG.
2815 (defarg_location): Remove declaration.
2816 (defparse_location): Add declaration.
2817 * decl.c (grokfndecl): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2818 Call defparse_location instead of defarg_location.
2819 (check_default_argument): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2820 (cp_tree_node_structure): Likewise. Use TS_CP_DEFERRED_PARSE instead
2821 of TS_CP_DEFAULT_ARG.
2822 * decl2.c (grokfield): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2823 * error.c (dump_expr): Likewise.
2824 (location_of): Likewise.
2825 * init.c (get_nsdmi): Likewise.
2826 * parser.c (cp_parser_save_noexcept): Likewise. Use DEFPARSE_TOKENS
2827 instead of DEFARG_TOKENS.
2828 (cp_parser_late_noexcept_specifier): Likewise.
2829 (cp_parser_late_parse_one_default_arg): Use DEFPARSE_TOKENS instead
2831 (cp_parser_late_parsing_default_args): Use DEFERRED_PARSE instead of
2832 DEFAULT_ARG. Use DEFPARSE_INSTANTIATIONS instead of
2833 DEFARG_INSTANTIATIONS.
2834 (cp_parser_cache_defarg): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2835 Use DEFPARSE_TOKENS instead of DEFARG_TOKENS. Use
2836 DEFPARSE_INSTANTIATIONS instead of DEFARG_INSTANTIATIONS.
2837 (defparse_location): Renamed from defarg_location.
2838 * pt.c (tsubst_default_argument): Use DEFERRED_PARSE instead of
2840 (tsubst_arg_types): Likewise.
2841 (dependent_type_p_r): Likewise.
2842 * tree.c (cp_tree_equal): Likewise.
2843 (cp_walk_subtrees): Likewise.
2844 * typeck.c (convert_arguments): Likewise.
2846 2019-06-22 Marek Polacek <polacek@redhat.com>
2848 PR c++/86476 - noexcept-specifier is a complete-class context.
2850 * cp-tree.def (DEFAULT_ARG): Update commentary.
2851 * cp-tree.h (UNPARSED_NOEXCEPT_SPEC_P): New macro.
2852 (tree_default_arg): Use tree_base instead of tree_common.
2853 (do_push_parm_decls, maybe_check_overriding_exception_spec): Declare.
2854 * decl.c (do_push_parm_decls): New function, broken out of...
2855 (store_parm_decls): ...here. Call it.
2856 * except.c (nothrow_spec_p): Accept DEFAULT_ARG in the assert.
2857 * parser.c (cp_parser_noexcept_specification_opt,
2858 cp_parser_late_noexcept_specifier, noexcept_override_late_checks):
2860 (unparsed_noexcepts): New macro.
2861 (push_unparsed_function_queues): Update initializer.
2862 (cp_parser_direct_declarator): Pass FRIEND_P to
2863 cp_parser_exception_specification_opt.
2864 (inject_parm_decls): New.
2865 (pop_injected_parms): New.
2866 (cp_parser_class_specifier_1): Implement delayed parsing of
2867 noexcept-specifiers.
2868 (cp_parser_save_noexcept): New.
2869 (cp_parser_late_noexcept_specifier): New.
2870 (noexcept_override_late_checks): New.
2871 (cp_parser_noexcept_specification_opt): Add FRIEND_P parameter. Call
2872 cp_parser_save_noexcept instead of the normal processing if needed.
2873 (cp_parser_exception_specification_opt): Add FRIEND_P parameter and
2874 pass it to cp_parser_noexcept_specification_opt.
2875 (cp_parser_save_member_function_body): Fix comment.
2876 (cp_parser_save_default_args): Maybe save the noexcept-specifier to
2878 (cp_parser_transaction): Update call to
2879 cp_parser_noexcept_specification_opt.
2880 (cp_parser_transaction_expression): Likewise.
2881 * parser.h (cp_unparsed_functions_entry): Add new field to carry
2882 a noexcept-specifier.
2883 * pt.c (dependent_type_p_r): Handle unparsed noexcept expression.
2884 * search.c (maybe_check_overriding_exception_spec): New function, broken
2886 (check_final_overrider): ...here. Call
2887 maybe_check_overriding_exception_spec.
2888 * tree.c (canonical_eh_spec): Handle UNPARSED_NOEXCEPT_SPEC_P.
2889 (cp_tree_equal): Handle DEFAULT_ARG.
2891 PR c++/90881 - bogus -Wunused-value in unevaluated context.
2892 * cvt.c (convert_to_void): Don't emit unused warnings in
2893 an unevaluated context.
2895 2019-06-22 Paolo Carlini <paolo.carlini@oracle.com>
2897 * decl.c (grokdeclarator): Use id_loc, typespec_loc, and
2898 locations[ds_storage_class] in a few additional places.
2900 2019-06-21 Paolo Carlini <paolo.carlini@oracle.com>
2904 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2908 * call.c (build_over_call): Devirtualize when the final overrider
2909 comes from the base.
2911 2019-06-21 Marek Polacek <polacek@redhat.com>
2913 PR c++/61490 - qualified-id in friend function definition.
2914 * decl.c (grokdeclarator): Diagnose qualified-id in friend function
2915 definition. Improve location for diagnostics of friend functions.
2917 PR c++/60223 - ICE with T{} in non-deduced context.
2918 * pt.c (unify): Allow COMPOUND_LITERAL_P in a non-deduced context.
2920 PR c++/64235 - missing syntax error with invalid alignas.
2921 * parser.c (cp_parser_std_attribute_spec): Commit to tentative parse
2922 if there's a missing close paren.
2924 PR c++/90490 - fix decltype issues in noexcept-specifier.
2925 * except.c (build_noexcept_spec): Call
2926 instantiate_non_dependent_expr_sfinae before
2927 build_converted_constant_expr instead of calling
2928 instantiate_non_dependent_expr after it. Add
2929 processing_template_decl_sentinel.
2931 2019-06-21 Jakub Jelinek <jakub@redhat.com>
2934 * semantics.c (finish_omp_clauses): Don't reject references to
2935 incomplete types if processing_template_decl.
2937 2019-06-19 Marek Polacek <polacek@redhat.com>
2939 PR c++/60364 - noreturn after first decl not diagnosed.
2940 * decl.c (duplicate_decls): Give an error when a function is
2941 declared [[noreturn]] after its first declaration.
2942 * parser.c (cp_parser_std_attribute): Don't treat C++11 noreturn
2943 attribute as equivalent to GNU's.
2944 * tree.c (std_attribute_table): Add noreturn.
2946 2019-06-19 Jakub Jelinek <jakub@redhat.com>
2948 * cp-gimplify.c (cp_genericize_r): Handle OMP_CLAUSE_{IN,EX}CLUSIVE
2949 like OMP_CLAUSE_SHARED.
2951 2019-06-18 Jason Merrill <jason@redhat.com>
2953 * constexpr.c (cxx_eval_store_expression): Delay target evaluation.
2955 2019-06-18 Jason Merrill <jason@redhat.com>
2957 * constexpr.c (eval_and_check_array_index): Split out from...
2958 (cxx_eval_array_reference): ...here.
2959 (cxx_eval_store_expression): Use it here, too.
2960 (diag_array_subscript): Take location. Strip location wrapper.
2962 2019-06-18 Jason Merrill <jason@redhat.com>
2964 * constexpr.c (cxx_eval_constant_expression): Handle conversion from
2965 and then to the same type.
2967 2019-06-18 Jason Merrill <jason@redhat.com>
2969 * constexpr.c (unshare_constructor): Add MEM_STAT_DECL.
2971 2019-06-17 Jakub Jelinek <jakub@redhat.com>
2973 * semantics.c (finish_omp_clauses): For OMP_CLAUSE_REDUCTION_INSCAN
2974 set need_copy_assignment.
2976 2019-06-17 Marek Polacek <polacek@redhat.com>
2978 PR c++/83820 - excessive attribute arguments not detected.
2979 * parser.c (cp_parser_std_attribute): Detect excessive arguments.
2981 2019-06-17 Nathan Sidwell <nathan@acm.org>
2984 * name-lookup.c (lookup_type_scope_1): Calll qualify_lookup before
2987 2019-06-14 Marek Polacek <polacek@redhat.com>
2989 PR c++/90884 - stray note with -Wctor-dtor-privacy.
2990 * class.c (maybe_warn_about_overly_private_class): Guard the call to
2993 2019-06-12 Jason Merrill <jason@redhat.com>
2995 PR c++/85552 - wrong instantiation of dtor for DMI.
2996 * typeck2.c (digest_nsdmi_init): Set tf_no_cleanup for direct-init.
2998 2019-06-13 Paolo Carlini <paolo.carlini@oracle.com>
3000 * decl.c (grokdeclarator): Use id_loc in five additional places
3001 in the last part of the function.
3003 2019-06-13 Paolo Carlini <paolo.carlini@oracle.com>
3005 * decl.c (grokdeclarator): Move further up the declaration of
3006 id_loc, use it immediately, update its value after the loop
3007 over declarator, use it again in the final part of function;
3008 improve locations of error messages about multiple data types
3009 and conflicting specifiers.
3011 2019-06-13 Richard Biener <rguenther@suse.de>
3014 * typeck2.c (split_nonconstant_init_1): Properly count
3015 num_split_elts, optimize single constructor elt removal.
3017 2019-06-12 Marek Polacek <polacek@redhat.com>
3019 PR c++/66999 - 'this' captured by reference.
3020 * parser.c (cp_parser_lambda_introducer): Reject `&this'. Use
3021 cp_lexer_nth_token_is instead of cp_lexer_peek_nth_token.
3023 PR c++/90825 - endless recursion when evaluating sizeof.
3024 PR c++/90832 - endless recursion when evaluating sizeof.
3025 * constexpr.c (cxx_eval_constant_expression): Don't recurse on the
3026 result of fold_sizeof_expr if is returns a SIZEOF_EXPR.
3027 * typeck.c (cxx_sizeof_expr): Only return a SIZEOF_EXPR if the operand
3028 is instantiation-dependent.
3030 PR c++/90736 - bogus error with alignof.
3031 * constexpr.c (adjust_temp_type): Use cv_unqualified type.
3033 2019-06-11 Matthew Beliveau <mbelivea@redhat.com>
3035 PR c++/90449 - add -Winaccessible-base option.
3036 * class.c (warn_about_ambiguous_bases): Changed name to:
3037 maybe_warn_about_inaccessible_bases.
3038 (maybe_warn_about_inaccessible_bases): Implemented new
3039 Winaccessible-base warning option for both direct and virtual
3041 (layout_class_type): Call to warn_about_ambiguous_bases changed to fit
3044 2019-06-11 Richard Biener <rguenther@suse.de>
3047 * typeck2.c (split_nonconstant_init_1): Avoid ordered remove
3048 from CONSTRUCTOR by marking to remove elements and doing all
3049 of them in a O(n) scan.
3051 2019-06-11 Jakub Jelinek <jakub@redhat.com>
3054 * init.c (constant_value_1): Handle VECTOR_CST DECL_INITIAL for
3055 !DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P decls like CONSTRUCTOR.
3057 2019-06-11 Martin Liska <mliska@suse.cz>
3060 * pt.c (init_template_processing): Disable hash table
3061 sanitization for decl_specializations and type_specializations.
3063 2019-06-10 Jason Merrill <jason@redhat.com>
3065 * constexpr.c (free_constructor): New.
3066 (cxx_eval_call_expression): Free parameter value CONSTRUCTORs.
3068 * constexpr.c (unshare_constructor): Only unshare if T is itself a
3070 (cxx_eval_call_expression): Don't call it on the result here.
3072 Reduce constexpr_call memory consumption.
3073 * constexpr.c (cxx_bind_parameters_in_call): Use TREE_VEC rather
3075 (constexpr_call_hasher::equal, cxx_bind_parameters_in_call)
3076 (cxx_eval_call_expression): Adjust.
3078 2019-06-10 Jakub Jelinek <jakub@redhat.com>
3080 * parser.c (cp_parser_omp_clause_reduction): Don't sorry_at on inscan
3082 (cp_parser_omp_scan_loop_body): New function.
3083 (cp_parser_omp_for_loop): Call cp_parser_omp_scan_loop_body if there
3084 are inscan reduction clauses.
3085 (cp_parser_pragma): Reject PRAGMA_OMP_SCAN.
3086 * semantics.c (finish_omp_clauses): Reject mixing inscan with
3087 non-inscan reductions on the same construct, or inscan reductions with
3088 ordered or schedule clauses, or inscan array reductions.
3089 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_{IN,EX}CLUSIVE.
3090 (tsubst_expr): Handle OMP_SCAN.
3092 2019-06-07 Jason Merrill <jason@redhat.com>
3094 * constexpr.c (cxx_eval_constant_expression): Call
3095 STRIP_ANY_LOCATION_WRAPPER early.
3096 [CONVERT_EXPR]: Don't build anything for conversion to void.
3097 [ADDR_EXPR]: ggc_free unused ADDR_EXPR.
3099 2019-06-05 Martin Sebor <msebor@redhat.com>
3102 * typeck.c (maybe_warn_about_returning_address_of_local): Only
3103 consider functions returning pointers as candidates for
3104 -Wreturn-local-addr.
3106 2019-06-05 Paolo Carlini <paolo.carlini@oracle.com>
3108 * decl.c (smallest_type_location): New.
3109 (check_special_function_return_type): Use it.
3110 (grokdeclarator): Lkewise.
3112 2019-06-05 Paolo Carlini <paolo.carlini@oracle.com>
3114 * decl.c (grokdeclarator): Use locations[ds_friend]
3117 2019-06-05 Martin Sebor <msebor@redhat.com>
3119 * call.c (build_conditional_expr_1): Adjust quoting and hyphenation.
3120 (convert_like_real): Same.
3121 (convert_arg_to_ellipsis): Same.
3122 * constexpr.c (diag_array_subscript): Same.
3123 * constraint.cc (diagnose_trait_expression): Same.
3124 * cvt.c (ocp_convert): Same.
3125 * decl.c (start_decl): Same.
3126 (check_for_uninitialized_const_var): Same.
3128 (check_special_function_return_type): Same.
3129 (finish_enum_value_list): Same.
3130 (start_preparsed_function): Same.
3131 * parser.c (cp_parser_decl_specifier_seq): Same.
3132 * typeck.c (cp_build_binary_op): Same.
3133 (build_static_cast_1): Same.
3135 2019-06-04 Nina Dinka Ranns <dinka.ranns@gmail.com>
3137 PR c++/63149 - Wrong auto deduction from braced-init-list.
3138 * pt.c (listify_autos): use non cv qualified auto_node in
3139 std::initializer_list<auto>.
3141 2019-06-04 Paolo Carlini <paolo.carlini@oracle.com>
3143 * decl.c (grokdeclarator): Use declarator->id_loc in two
3146 2019-06-04 Nathan Sidwell <nathan@acm.org>
3148 * name-lookup.c (lookup_type_scope_1): Reimplement, handle local
3149 and namespace scopes separately.
3151 2019-06-04 Harald van Dijk <harald@gigawatt.nl>
3153 PR c++/60531 - Wrong error about unresolved overloaded function
3154 * typeck.c (cp_build_binary_op): See if overload can be resolved.
3155 (cp_build_unary_op): Ditto.
3157 2019-06-04 Jason Merrill <jason@redhat.com>
3159 Reduce accumulated garbage in constexpr evaluation.
3160 * constexpr.c (cxx_eval_call_expression): ggc_free any bindings we
3162 (cxx_eval_increment_expression): ggc_free the MODIFY_EXPR after
3165 2019-06-04 Jakub Jelinek <jakub@redhat.com>
3167 * cp-tree.h (CP_OMP_CLAUSE_INFO): Allow for any clauses up to _condvar_
3168 instead of only up to linear.
3170 2019-06-03 Paolo Carlini <paolo.carlini@oracle.com>
3172 * parser.c (cp_parser_unqualified_id): Use build_min_nt_loc in
3175 2019-06-01 Ville Voutilainen <ville.voutilainen@gmail.com>
3178 * class.c (fixup_type_variants): Handle CLASSTYPE_FINAL.
3180 2019-05-31 Nathan Sidwell <nathan@acm.org>
3182 * cp-tree.h (IDENTIFIER_LAMBDA_P): New.
3184 (LAMBDA_TYPE_P, TYPE_UNNAMED_P): Likewise.
3185 (LAMBDANAME_PREFIX, LAMBDANAME_FORMAT): Delete.
3186 (make_lambda_name): Don't declare.
3187 * error.c (dump_aggr_type): Check for lambdas before other
3189 * lambda.c (begin_lambda_type): Use make_anon_name.
3190 * cp-lang.c (cxx_dwarf_name): Lambda names smell anonymous.
3191 * mangle.c (write_local_name): Likewise.
3192 * name-lookup.c (lambda_cnt, make_lambda_name): Delete.
3194 2019-05-30 Marek Polacek <polacek@redhat.com>
3196 * cp-tree.h (TYPE_HAS_NONTRIVIAL_DESTRUCTOR): Fix a typo.
3198 2019-05-31 Paolo Carlini <paolo.carlini@oracle.com>
3200 * decl.c (grokdeclarator): Use declarator->id_loc in five
3203 2019-05-29 Jakub Jelinek <jakub@redhat.com>
3206 * tree.c (lvalue_kind): Return clk_none for expressions with
3209 2019-05-29 Paolo Carlini <paolo.carlini@oracle.com>
3212 * parser.c (cp_parser_sizeof_operand): When the type-id production
3213 did not work out commit to the tentative parse.
3215 2019-05-29 Jakub Jelinek <jakub@redhat.com>
3217 P1091R3 - Extending structured bindings to be more like var decls
3218 P1381R1 - Reference capture of structured bindings
3219 * decl.c (cp_maybe_mangle_decomp): Handle TREE_STATIC decls even at
3221 (cp_finish_decomp): Copy over various decl properties from decl to
3222 v[i] in the tuple case.
3223 (grokdeclarator): Allow static, thread_local and __thread for C++2a
3224 and use pedwarn instead of error for older standard revisions.
3225 Make other structured binding diagnostic messages more i18n friendly.
3227 2019-05-28 Nathan Sidwell <nathan@acm.org>
3229 * decl.c (duplicate_decls): Assert a template newdecl has no
3232 2019-05-28 Marek Polacek <polacek@redhat.com>
3234 PR c++/90548 - ICE with generic lambda and empty pack.
3235 * pt.c (tsubst_copy_and_build): Handle pack expansion properly.
3237 2019-05-28 Nathan Sidwell <nathan@acm.org>
3239 * cp-tree.h (make_anon_name): Drop declaration.
3240 (TYPE_UNNAMED_P): Use IDENTIFIER_ANON_P.
3241 * cp-lang.c (cxx_dwarf_name): Likewise.
3242 * class.c (find_flexarrays): Likewise.
3243 * decl.c (name_unnamed_type, xref_tag_1): Likewise.
3244 * error.c (dump_aggr_type): Likewise.
3245 * pt.c (push_template_decl_real): Likewise.
3246 * name-lookup.c (consider_binding_level): Likewise.
3247 (anon_cnt, make_anon_name): Delete.
3249 2019-05-25 Marek Polacek <polacek@redhat.com>
3251 PR c++/90572 - wrong disambiguation in friend declaration.
3252 * parser.c (cp_parser_constructor_declarator_p): Don't allow missing
3253 typename for friend declarations.
3255 2019-05-23 Jonathan Wakely <jwakely@redhat.com>
3257 * cp-tree.h (CP_AGGREGATE_TYPE_P): Fix whitespace.
3259 * init.c (std_placement_new_fn_p): Remove outdated TODO comment that
3260 was resolved by r254694.
3262 2019-05-22 Jason Merrill <jason@redhat.com>
3264 PR c++/20408 - unnecessary code for empty struct.
3265 * call.c (build_call_a): Use simple_empty_class_p.
3267 PR c++/86485 - -Wmaybe-unused with empty class ?:
3268 * cp-gimplify.c (simple_empty_class_p): Also true for MODIFY_EXPR.
3270 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
3272 * parser.c (cp_parser_template_declaration_after_parameters): Use
3273 DECL_SOURCE_LOCATION in literal operator template errors.
3275 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
3279 * call.c (build_over_call): Devirtualize when the final overrider
3280 comes from the base.
3282 2019-05-21 Nathan Sidwell <nathan@acm.org>
3284 * name-lookup.c (do_nonmember_using_decl): Drop INSERT_P
3285 parameter. Document.
3286 (finish_nonmember_using_decl): Adjust do_nonmember_using_decl
3287 calls. Remove stray FIXME comment.
3289 * name-lookup.h (struct cp_binding_level): Drop usings field.
3290 (finish_namespace_using_decl, finish_local_using_decl): Replace with ...
3291 (finish_nonmember_using_decl): ... this.
3292 * name-lookup.c (push_using_decl_1, push_using_decl):
3293 (do_nonmember_using_decl): ... here. Add INSERT_P arg. Reimplement.
3294 (validate_nonmember_using_decl, finish_namespace_using_decl)
3295 (finish_local_using_decl): Replace with ...
3296 (finish_nonmember_using_decl): ... this. Drop DECL parm.
3297 * parser.c (cp_parser_using_declaration): Don't do lookup here.
3298 * pt.c (tsubst_expr): Do not do using decl lookup here.
3300 2019-05-21 Eric Botcazou <ebotcazou@adacore.com>
3302 * decl2.c (cpp_check) <IS_ASSIGNMENT_OPERATOR>: New case.
3304 2019-05-20 Marek Polacek <polacek@redhat.com>
3306 CWG 2094 - volatile scalars are trivially copyable.
3308 * tree.c (trivially_copyable_p): Don't check CP_TYPE_VOLATILE_P for
3311 2019-05-20 Marek Polacek <polacek@redhat.com>
3313 * pt.c (convert_template_argument): Add a diagnostic for the
3314 [temp.arg]/2 ambiguity case.
3316 * name-lookup.c (finish_using_directive): Don't issue inform() if the
3317 warning didn't trigger. Add quoting. Tweak the inform message.
3319 2019-05-20 Paolo Carlini <paolo.carlini@oracle.com>
3321 * cp-tree.h: Remove remnants of CONV_NONCONVERTING.
3323 2019-05-20 Nathan Sidwell <nathan@acm.org>
3325 * name-lookup.c (finish_namespace_using_directive)
3326 (finish_local_using_directive): Merge to ...
3327 (finish_using_directive): ... here. Handle both contexts.
3328 * name-lookup.h (finish_namespace_using_directive)
3329 (finish_local_using_directive): Replace with ...
3330 (finish_using_directive): ... this.
3331 * parser.c (cp_parser_using_directive): Adjust.
3332 * pt.c (tsubst_expr): Likewise.
3334 * cp-tree.h (struct lang_decl_ns): Remove usings field.
3335 (DECL_NAMESPACE_USING): Delete.
3336 * name-lookup.c (name_lookup::search_usings): Use namespace's
3338 (name_lookup::queue_namespae): Likewise.
3339 (finish_namespace_using_directive, push_namespace): Likewise.
3340 (has_using_namespace_std_directive): Just search the entire
3343 2019-05-20 Jonathan Wakely <jwakely@redhat.com>
3345 PR c++/90532 Ensure __is_constructible(T[]) is false
3346 * method.c (is_xible_helper): Return error_mark_node for construction
3347 of an array of unknown bound.
3349 2019-05-17 Thomas Schwinge <thomas@codesourcery.com>
3352 * parser.c (cp_finalize_oacc_routine): Rework checking if already
3353 marked with an OpenACC 'routine' directive.
3356 * parser.c (cp_parser_oacc_routine)
3357 (cp_parser_late_parsing_oacc_routine): Normalize order of clauses.
3358 (cp_finalize_oacc_routine): Call oacc_verify_routine_clauses.
3361 * parser.c (cp_finalize_oacc_routine): Refer to OpenACC 'routine'
3362 clauses from "omp declare target" attribute.
3364 2019-05-16 Martin Sebor <msebor@redhat.com>
3366 * call.c (print_z_candidate): Wrap diagnostic text in a gettext
3368 (print_z_candidates): Same.
3369 (build_conditional_expr_1): Quote keywords, operators, and types
3371 (build_op_delete_call): Same.
3372 (maybe_print_user_conv_context): Wrap diagnostic text in a gettext
3374 (convert_like_real): Same.
3375 (convert_arg_to_ellipsis): Quote keywords, operators, and types
3377 (build_over_call): Same.
3378 (joust): Break up an overlong line. Wrap diagnostic text in a gettext
3380 * constexpr.c (cxx_eval_check_shift_p): Spell out >= in English.
3381 (cxx_eval_constant_expression): Quote keywords, operators, and types
3383 (potential_constant_expression_1): Same.
3384 * cp-gimplify.c (cp_genericize_r): Same.
3385 * cvt.c (maybe_warn_nodiscard): Quote keywords, operators, and types
3387 (type_promotes_to): Same.
3388 * decl.c (check_previous_goto_1): Same.
3391 (cp_finish_decl): Avoid parenthesizing a sentence for consistency.
3392 (grok_op_properties): Quote keywords, operators, and types
3394 * decl2.c (grokfield): Same.
3395 (coerce_delete_type): Same.
3396 * except.c (is_admissible_throw_operand_or_catch_parameter): Same.
3397 * friend.c (do_friend): Quote C++ tokens.
3398 * init.c (build_new_1): Quote keywords, operators, and types
3400 (build_vec_delete_1): Same.
3401 (build_delete): Same.
3402 * lex.c (parse_strconst_pragma): Same.
3403 (handle_pragma_implementation): Same.
3404 (unqualified_fn_lookup_error): Same.
3405 * mangle.c (write_type): Same.
3406 * method.c (defaulted_late_check): Avoid two consecutive punctuators.
3407 * name-lookup.c (cp_binding_level_debug): Remove a trailing newline.
3408 (pop_everything): Same.
3409 * parser.c (cp_lexer_start_debugging): Quote a macro name.
3411 (cp_lexer_stop_debugging): Same.
3412 (cp_parser_userdef_numeric_literal): Quote a C++ header name
3414 (cp_parser_nested_name_specifier_opt): Quote keywords, operators,
3415 and types in diagnostics.
3416 (cp_parser_question_colon_clause): Same.
3417 (cp_parser_asm_definition): Same.
3418 (cp_parser_init_declarator): Same.
3419 (cp_parser_template_declaration_after_parameters): Avoid capitalizing
3420 a sentence in a diagnostic.
3421 (cp_parser_omp_declare_reduction): Quote keywords, operators, and types
3423 (cp_parser_transaction): Same.
3424 * pt.c (maybe_process_partial_specialization): Replace second call
3425 to permerror with inform for consistency with other uses.
3426 (expand_integer_pack): Quote keywords, operators, and types
3428 * rtti.c (get_typeid): Quote keywords, operators, and types
3430 (build_dynamic_cast_1): Same.
3431 * semantics.c (finish_asm_stmt): Same.
3432 (finish_label_decl): Same.
3433 (finish_bases): Same.
3434 (finish_offsetof): Same.
3435 (cp_check_omp_declare_reduction): Same.
3436 (finish_decltype_type): Same.
3437 * tree.c (handle_init_priority_attribute): Same. Add detail
3439 (maybe_warn_zero_as_null_pointer_constant): Same.
3440 * typeck.c (cp_build_binary_op): Quote keywords, operators, and types
3442 (cp_build_unary_op): Same.
3443 (check_for_casting_away_constness): Same.
3444 (build_static_cast): Same.
3445 (build_const_cast_1): Same.
3446 (maybe_warn_about_returning_address_of_local): Same.
3447 (check_return_expr): Same.
3448 * typeck2.c (abstract_virtuals_error_sfinae): Same.
3449 (digest_init_r): Replace a tab with spaces in a diagnostic.
3450 (build_functional_cast): Quote keywords, operators, and types
3453 2019-05-15 Jakub Jelinek <jakub@redhat.com>
3456 * cp-gimplify.c (genericize_cp_loop): Emit a DEBUG_BEGIN_STMT
3457 before the condition (or if missing or constant non-zero at the end
3458 of the loop. Emit a DEBUG_BEGIN_STMT before the increment expression
3459 if any. Don't call protected_set_expr_location on incr if it already
3462 2019-05-15 Marek Polacek <polacek@redhat.com>
3464 CWG 2096 - constraints on literal unions.
3465 * class.c (check_field_decls): Initialize booleans directly. A union
3466 is literal if at least one of its non-static data members is of
3467 non-volatile literal type.
3469 2019-05-15 Paolo Carlini <paolo.carlini@oracle.com>
3471 * cp-tree.h (REFERENCE_VLA_OK): Remove.
3472 * lambda.c (build_capture_proxy): Remove use of the above.
3474 2019-05-15 Paolo Carlini <paolo.carlini@oracle.com>
3476 * call.c (perform_overload_resolution, build_new_method_call_1):
3477 Use OVL_P; remove redundant TEMPLATE_DECL checks.
3478 * decl.c (grokfndecl): Likewise.
3479 * mangle.c (write_expression): Likewise.
3480 * parser.c (cp_parser_template_id): Likewise.
3481 * pt.c (resolve_overloaded_unification, type_dependent_expression_p):
3483 * search.c (build_baselink): Likewise.
3484 * tree.c (is_overloaded_fn, dependent_name, maybe_get_fns): Likewise.
3486 2019-05-14 Paolo Carlini <paolo.carlini@oracle.com>
3488 PR preprocessor/90382
3489 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3492 2019-05-13 Jason Merrill <jason@redhat.com>
3494 Use releasing_vec more broadly.
3495 * cp-tree.h (struct releasing_vec): Replace get_ref method with
3497 (vec_safe_push, vec_safe_reserve, vec_safe_length, vec_safe_splice):
3498 Forwarding functions for releasing_vec.
3499 (release_tree_vector): Declare but don't define.
3500 * call.c (build_op_delete_call, build_temp, call_copy_ctor)
3501 (perform_direct_initialization_if_possible): Use releasing_vec.
3502 * constexpr.c (cxx_eval_vec_init_1, cxx_eval_store_expression):
3504 * cp-gimplify.c (cp_fold): Likewise.
3505 * cvt.c (force_rvalue, ocp_convert): Likewise.
3506 * decl.c (get_tuple_decomp_init): Likewise.
3507 * except.c (build_throw): Likewise.
3508 * init.c (perform_member_init, expand_default_init): Likewise.
3509 * method.c (do_build_copy_assign, locate_fn_flags): Likewise.
3510 * parser.c (cp_parser_userdef_char_literal)
3511 (cp_parser_userdef_numeric_literal)
3512 (cp_parser_userdef_string_literal)
3513 (cp_parser_perform_range_for_lookup)
3514 (cp_parser_range_for_member_function, cp_parser_omp_for_loop)
3515 (cp_parser_omp_for_loop_init): Likewise.
3516 * pt.c (tsubst_copy_and_build, do_class_deduction): Likewise.
3517 * semantics.c (calculate_direct_bases, calculate_bases)
3518 (finish_omp_barrier, finish_omp_flush, finish_omp_taskwait)
3519 (finish_omp_taskyield, finish_omp_cancel)
3520 (finish_omp_cancellation_point): Likewise.
3521 * tree.c (build_vec_init_elt, strip_typedefs, strip_typedefs_expr)
3522 (build_min_non_dep_op_overload): Likewise.
3523 * typeck.c (build_function_call_vec, cp_build_function_call_nary)
3524 (cp_build_modify_expr): Likewise.
3525 * typeck2.c (build_functional_cast): Likewise.
3527 2019-05-11 Paolo Carlini <paolo.carlini@oracle.com>
3529 * typeck.c (cp_build_function_call_vec): When mark_used fails
3530 unconditionally return error_mark_node.
3532 2019-05-10 Paolo Carlini <paolo.carlini@oracle.com>
3534 * decl.c (grokvardecl): Use an accurate location in error message
3535 about main as a global variable.
3537 2019-05-10 Paolo Carlini <paolo.carlini@oracle.com>
3539 * call.c (build_call_a): Use FUNC_OR_METHOD_TYPE_P.
3540 * cp-gimplify.c (cp_fold): Likewise.
3541 * cp-objcp-common.c (cp_type_dwarf_attribute): Likewise.
3542 * cp-tree.h (TYPE_OBJ_P, TYPE_PTROBV_P): Likewise.
3543 * cvt.c (perform_qualification_conversions): Likewise.
3544 * decl.c (grokdeclarator): Likewise.
3545 * decl2.c (build_memfn_type): Likewise.
3546 * mangle.c (canonicalize_for_substitution, write_type): Likewise.
3547 * parser.c (cp_parser_omp_declare_reduction): Likewise.
3548 * pt.c (check_explicit_specialization, uses_deducible_template_parms,
3549 check_cv_quals_for_unify, dependent_type_p_r): Likewise.
3550 * rtti.c (ptr_initializer): Likewise.
3551 * semantics.c (finish_asm_stmt, finish_offsetof,
3552 cp_check_omp_declare_reduction): Likewise.
3553 * tree.c (cp_build_qualified_type_real,
3554 cp_build_type_attribute_variant, cxx_type_hash_eq,
3555 cxx_copy_lang_qualifiers, cp_free_lang_data): Likewise.
3556 * typeck.c (structural_comptypes, convert_arguments,
3557 cp_build_addr_expr_1, unary_complex_lvalue, cp_build_c_cast,
3558 cp_build_modify_expr, comp_ptr_ttypes_real, type_memfn_rqual):
3561 2019-05-10 Marek Polacek <polacek@redhat.com>
3563 PR c++/78010 - bogus -Wsuggest-override warning on final function.
3564 * class.c (check_for_override): Don't warn for final functions.
3566 2019-05-10 Jakub Jelinek <jakub@redhat.com>
3569 * config-lang.in (gtfiles): Remove c-family/c-lex.c, add
3570 c-family/c-cppbuiltin.c.
3572 2019-05-09 Paolo Carlini <paolo.carlini@oracle.com>
3576 2018-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3578 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3581 2019-05-08 Nathan Sidwell <nathan@acm.org>
3583 Kill DECL_SAVED_FUNCTION_DATA .
3584 * cp-tree.h (language_function): Remove x_auto_return_pattern.
3585 (current_function_auto_return_pattern): Delete.
3586 (lang_decl_fn): Replace saved_language_function with
3587 saved_auto_return type.
3588 (DECL_SAVED_FUNCTION_DATA): Delete.
3589 (DECL_SAVED_AUTO_RETURN_TYPE): New.
3590 (FNDECL_USED_AUTO): Correct documentation.
3591 * decl.c (duplicate_decls): Adjust AUTO return handling.
3592 (start_preparsed_function): Replace
3593 current_function_auto_return_pattern with
3594 DECL_SAVED_AUTO_RETURN_TYPE. Remove DECL_SAVED_FUNCTION_DATA
3596 (finish_function): Likewise.
3597 (save_function_data): Delete.
3598 (fndecl_declared_return_type): Reimplement.
3599 * mangle.c (write_unqualified_name): Use DECL_SAVED_AUTO_RETURN_TYPE.
3600 * method.c (make_thunk, make_alias_for): Likewise.
3601 * parser.c (cp_parser_jump_statement): Likewise.
3602 * pt.c (do_auto_deduction): Likewise.
3603 * typeck.c (check_return_expr): Likewise.
3605 2019-05-06 Jason Merrill <jason@redhat.com>
3607 PR c++/90171 - reorganize usual_deallocation_fn_p
3608 * call.c (struct dealloc_info): New.
3609 (usual_deallocation_fn_p): Take a dealloc_info*.
3610 (aligned_deallocation_fn_p, sized_deallocation_fn_p): Remove.
3611 (build_op_delete_call): Adjust.
3613 2019-05-07 Jason Merrill <jason@redhat.com>
3615 PR c++/86485 - -Wmaybe-unused with empty class ?:
3616 * typeck.c (build_static_cast_1): Use cp_build_addr_expr.
3618 * pt.c (type_dependent_expression_p): A non-type template parm with
3619 a placeholder type is type-dependent.
3621 2019-05-06 Marek Polacek <polacek@redhat.com>
3623 PR c++/90265 - ICE with generic lambda.
3624 * pt.c (tsubst_copy_and_build): Use a dedicated variable for the last
3625 element in the vector.
3627 2019-05-03 Martin Liska <mliska@suse.cz>
3629 * call.c (build_aggr_conv): Use is_empty instead of
3630 elements () == 0 (and similar usages).
3631 * parser.c (cp_parser_lambda_introducer): Likewise.
3633 2019-05-02 Nathan Sidwell <nathan@acm.org>
3635 * semantics.c (finish_id_expression_1): Remove unreachable code.
3637 2019-05-01 Nathan Sidwell <nathan@acm.org>
3639 * name-lookup.h (get_class_binding_direct): Change final arg to
3641 (get_class_binding): Likewise.
3642 * name-lookup.c (get_class_binding_direct): Replace TYPE_OR_FNS
3643 arg with WANT_TYPE bool. Simplify.
3644 (get_class_binding): Adjust final arg.
3645 * decl.c (reshape_init_class): Adjust get_class_binding calls.
3647 2019-04-30 Nathan Sidwell <nathan@acm.org>
3649 * cp-objcp-common.c (cp_common_init_ts): Use MARK_TS_EXP for _EXPR
3650 nodes. Call c_common_init_ts.
3652 2019-04-29 Nathan Sidwell <nathan@acm.org>
3654 * decl.c (duplicate_decls): Add whitespace, move comments into
3656 * method.c (explain_implicit_non_constexpr): Refactor.
3657 * pt.c (check_explicit_specialization): Fix indentation.
3658 * semantics.c (process_outer_var_ref): Reformat.
3659 (finish_id_expression_1): Use STRIP_TEMPLATE.
3661 2019-04-26 Jonathan Wakely <jwakely@redhat.com>
3663 PR c++/90243 - orphaned note in uninstantiated constexpr function
3664 * decl.c (check_for_uninitialized_const_var): Suppress notes if no
3667 2019-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3670 * decl.c (grokdeclarator): Set type to error_mark_node
3671 upon error about template placeholder type non followed
3672 by a simple declarator-id.
3674 2019-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3676 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3679 2019-04-24 Jason Merrill <jason@redhat.com>
3681 PR c++/90227 - error with template parameter packs.
3682 * pt.c (coerce_template_parms): Do add empty pack when
3685 2019-04-24 Richard Biener <rguenther@suse.de>
3687 * call.c (null_ptr_cst_p): Order checks according to expensiveness.
3688 (conversion_null_warnings): Likewise.
3689 * typeck.c (same_type_ignoring_top_level_qualifiers_p): Return
3690 early if type1 == type2.
3692 2019-04-22 Jason Merrill <jason@redhat.com>
3694 PR c++/87366 - wrong error with alias template.
3695 * typeck.c (structural_comptypes): When comparing_specializations,
3696 aliases are unequal.
3697 (comptypes): When comparing_specializations, do structural
3700 2019-04-19 Jason Merrill <jason@redhat.com>
3702 PR c++/90190 - CTAD with list-constructor.
3703 * pt.c (do_class_deduction): Don't try the single element deduction
3704 if the single element is also a braced list.
3706 PR c++/90171 - ICE with destroying delete with size_t parm.
3707 * call.c (sized_deallocation_fn_p): New. Use it instead of
3708 second_parm_is_size_t in most cases.
3709 (second_parm_is_size_t): Don't check for aligned.
3711 2019-04-19 Paolo Carlini <paolo.carlini@oracle.com>
3714 * pt.c (fn_type_unification): When handling null explicit
3715 arguments do not special case non-parameter packs.
3717 2019-04-19 Jakub Jelinek <jakub@redhat.com>
3720 * pt.c (process_template_parm): Set decl to pushdecl result. If
3721 !is_non_type, also set parm to that.
3724 * decl.c (struct cp_switch): Remove outside_range_p member.
3725 (push_switch): Don't clear it.
3726 (pop_switch): Adjust c_do_switch_warnings caller.
3727 (finish_case_label): Adjust c_add_case_label caller.
3730 * decl.c (duplicate_decls): If remove is main variant and
3731 DECL_ORIGINAL_TYPE is some other type, remove a DECL_ORIGINAL_TYPE
3732 variant that has newdecl as TYPE_NAME if any.
3734 2019-04-18 Jason Merrill <jason@redhat.com>
3736 PR c++/87554 - ICE with extern template and reference member.
3737 * decl.c (cp_finish_decl): Don't set DECL_INITIAL of external vars.
3739 2019-04-17 Jason Merrill <jason@redhat.com>
3741 PR c++/90047 - ICE with enable_if alias template.
3742 * pt.c (tsubst_decl) [TYPE_DECL]: Don't put an erroneous decl in the
3743 hash table when we're in SFINAE context.
3745 2019-04-17 Marek Polacek <polacek@redhat.com>
3747 PR c++/90124 - bogus error with incomplete type in decltype.
3748 * typeck.c (build_class_member_access_expr): Check
3749 cp_unevaluated_operand.
3751 2019-04-12 Jakub Jelinek <jakub@redhat.com>
3754 * decl.c (duplicate_decls): When newdecl's type is its main variant,
3755 don't try to remove it from the variant list, but instead assert
3758 2019-04-12 Martin Sebor <msebor@redhat.com>
3762 * parser.c (cp_parser_has_attribute_expression): Handle assignment
3765 2019-04-12 Jason Merrill <jason@redhat.com>
3767 * call.c (null_member_pointer_value_p): Handle an empty CONSTRUCTOR
3770 2019-04-12 Marek Polacek <polacek@redhat.com>
3772 * except.c (build_noexcept_spec): Use build_converted_constant_bool_expr
3773 instead of perform_implicit_conversion_flags.
3775 PR c++/87603 - constexpr functions are no longer noexcept.
3776 * constexpr.c (is_sub_constant_expr): Remove unused function.
3777 * cp-tree.h (is_sub_constant_expr): Remove declaration.
3778 * except.c (check_noexcept_r): Don't consider a call to a constexpr
3781 2019-04-11 Jakub Jelinek <jakub@redhat.com>
3783 PR translation/90035
3784 * parser.h (struct cp_parser): Add
3785 type_definition_forbidden_message_arg member.
3786 * parser.c (cp_debug_parser): Print it.
3787 (cp_parser_check_type_definition): Pass
3788 parser->type_definition_forbidden_message_arg as second argument to
3790 (cp_parser_has_attribute_expression, cp_parser_sizeof_operand): Set
3791 parser->type_definition_forbidden_message_arg and use G_() with
3792 %qs for parser->type_definition_forbidden_message instead of
3793 building untranslatable message using concat.
3795 2019-04-09 Jakub Jelinek <jakub@redhat.com>
3797 PR translation/90011
3798 * typeck2.c (check_narrowing): Remove trailing space from diagnostics.
3800 2019-04-08 Marek Polacek <polacek@redhat.com>
3802 * typeck2.c (digest_init_r): Don't condition the object slicing warning
3805 2019-04-08 Paolo Carlini <paolo.carlini@oracle.com>
3808 * semantics.c (trait_expr_value): Don't use TYPE_NOTHROW_P
3809 when maybe_instantiate_noexcept fails.
3810 (classtype_has_nothrow_assign_or_copy_p): Likewise.
3811 * method.c (implicitly_declare_fn): Avoid passing error_mark_node
3812 to build_exception_variant.
3814 2019-04-05 Marek Polacek <polacek@redhat.com>
3816 PR c++/87145 - bogus error converting class type in template arg list.
3817 * pt.c (convert_nontype_argument): Don't call
3818 build_converted_constant_expr if it could involve calling a conversion
3819 function with a instantiation-dependent constructor as its argument.
3821 2019-04-05 Martin Sebor <msebor@redhat.com>
3824 * decl.c (reshape_init_array_1): Avoid treating empty strings
3825 as zeros in array initializers.
3826 Use trivial_type_p () instead of TYPE_HAS_TRIVIAL_DFLT().
3828 2019-04-04 Jason Merrill <jason@redhat.com>
3830 PR c++/89948 - ICE with break in statement-expr.
3831 * constexpr.c (cxx_eval_statement_list): Jumping out of a
3832 statement-expr is non-constant.
3834 2019-04-04 Jason Merrill <jason@redhat.com>
3836 PR c++/89966 - error with non-type auto tparm.
3837 * pt.c (do_auto_deduction): Clear tf_partial.
3839 2019-04-04 Jason Merrill <jason@redhat.com>
3841 PR c++/86986 - ICE with TTP with parameter pack.
3842 * pt.c (coerce_template_parameter_pack): Only look at the type of a
3843 non-type parameter pack.
3844 (fixed_parameter_pack_p_1): Don't recurse into the type of a
3845 non-type parameter pack.
3846 (coerce_template_template_parms): Call add_outermost_template_args.
3848 2019-04-04 Martin Sebor <msebor@redhat.com>
3854 * decl.c (reshape_init_array_1): Strip trailing zero-initializers
3855 from arrays of trivial type and known size.
3856 * mangle.c (write_expression): Convert braced initializer lists
3858 (write_expression): Trim trailing zero-initializers from arrays
3860 (write_template_arg_literal): Mangle strings the same as braced
3863 2019-04-03 Jason Merrill <jason@redhat.com>
3865 PR c++/81866 - ICE with member template and default targ.
3866 * pt.c (tsubst_template_decl): Handle getting a type from
3867 retrieve_specialization.
3869 PR c++/86586 - -fcompare-debug=-Wsign-compare.
3870 * typeck.c (cp_build_binary_op): Don't fold for -Wsign-compare.
3872 PR c++/89331 - ICE with offsetof in incomplete class.
3873 * semantics.c (finish_offsetof): Handle error_mark_node.
3874 * typeck.c (build_class_member_access_expr): Call
3875 complete_type_or_maybe_complain before converting to base.
3877 PR c++/89917 - ICE with lambda in variadic mem-init.
3878 * pt.c (make_pack_expansion): Change type_pack_expansion_p to false.
3880 2019-04-01 Jason Merrill <jason@redhat.com>
3882 PR c++/86946 - ICE with function call in template argument.
3884 * pt.c (iterative_hash_template_arg) [CALL_EXPR]: Use
3887 2019-04-01 Paolo Carlini <paolo.carlini@oracle.com>
3890 * pt.c (tsubst_copy): Deal with lookup_name not returing a variable.
3892 2019-03-31 Marek Polacek <polacek@redhat.com>
3894 PR c++/89852 - ICE with C++11 functional cast with { }.
3895 * constexpr.c (fold_non_dependent_expr_template): New static function
3897 (fold_non_dependent_expr): ...here.
3898 (fold_non_dependent_init): New function.
3899 * cp-tree.h (fold_non_dependent_init): Declare.
3900 * typeck2.c (massage_init_elt): Call fold_non_dependent_init instead
3901 of fold_non_dependent_expr. Don't call maybe_constant_init.
3903 2019-03-30 Jason Merrill <jason@redhat.com>
3905 PR c++/89744 - ICE with specialization of member class template.
3906 * pt.c (lookup_template_class_1): If the partial instantiation is
3907 explicitly specialized, adjust.
3908 (maybe_process_partial_specialization): Also adjust
3911 2019-03-29 Jakub Jelinek <jakub@redhat.com>
3914 * typeck.c: Include gimplify.h.
3915 (cp_build_modify_expr) <case COND_EXPR>: Unshare rhs before using it
3916 for second time. Formatting fixes.
3918 2019-03-29 Marek Polacek <polacek@redhat.com>
3920 PR c++/89876 - ICE with deprecated conversion.
3921 * call.c (convert_like_real): Only give warnings with tf_warning.
3923 2019-03-28 Marek Polacek <polacek@redhat.com>
3925 PR c++/89612 - ICE with member friend template with noexcept.
3926 * pt.c (maybe_instantiate_noexcept): For function templates, use their
3927 template result (function decl). Don't set up local specializations.
3928 Temporarily turn on processing_template_decl. Update the template type
3931 PR c++/89836 - bool constant expression and explicit conversions.
3932 * call.c (build_converted_constant_expr_internal): New function,
3934 (build_converted_constant_expr): ...this. New.
3935 (build_converted_constant_bool_expr): New.
3936 * cp-tree.h (build_converted_constant_bool_expr): Declare.
3937 * decl.c (build_explicit_specifier): Call
3938 build_converted_constant_bool_expr.
3940 2019-03-28 Jakub Jelinek <jakub@redhat.com>
3943 * constexpr.c (struct check_for_return_continue_data): New type.
3944 (check_for_return_continue): New function.
3945 (potential_constant_expression_1) <case SWITCH_STMT>: Walk
3946 SWITCH_STMT_BODY to find RETURN_EXPRs or CONTINUE_STMTs not nested
3947 in loop bodies and set *jump_target to that if found.
3949 2019-03-27 Jason Merrill <jason@redhat.com>
3951 PR c++/89831 - error with qualified-id in const member function.
3952 * semantics.c (finish_non_static_data_member): Use object cv-quals
3953 in scoped case, too.
3955 PR c++/89421 - ICE with lambda in template parameter list.
3956 * parser.c (cp_parser_lambda_expression): Also reject a lambda in a
3957 template parameter list before C++20.
3958 * pt.c (type_dependent_expression_p): True for LAMBDA_EXPR.
3959 * semantics.c (begin_class_definition): Restore error about defining
3960 non-lambda class in template parm list.
3962 2019-03-26 Jason Merrill <jason@redhat.com>
3964 PR c++/86932 - missed SFINAE with empty pack.
3965 * pt.c (coerce_template_parms): Don't add an empty pack if
3967 (fn_type_unification): Pass tf_partial to coerce_template_parms.
3969 PR c++/86429 - constexpr variable in lambda.
3972 * constexpr.c (cxx_eval_constant_expression): In a lambda function,
3973 try evaluating the captured variable directly.
3975 2019-03-26 Jakub Jelinek <jakub@redhat.com>
3978 * semantics.c (finish_omp_atomic): Add warning_sentinel for
3979 -Wunused-value around finish_expr_stmt call.
3981 2019-03-25 Paolo Carlini <paolo.carlini@oracle.com>
3985 * parser.c (cp_parser_binary_expression): Don't call cp_fully_fold
3986 to undo the disabling of warnings.
3988 2019-03-25 Jason Merrill <jason@redhat.com>
3990 PR c++/87748 - substitution failure error with decltype.
3991 * pt.c (most_specialized_partial_spec): Clear
3992 processing_template_decl.
3994 2019-03-25 Marek Polacek <polacek@redhat.com>
3996 PR c++/89214 - ICE when initializing aggregates with bases.
3997 * typeck2.c (digest_init_r): Warn about object slicing instead of
4000 PR c++/89705 - ICE with reference binding with conversion function.
4001 * call.c (reference_binding): If the result of the conversion function
4002 is a prvalue of non-class type, use the cv-unqualified type.
4004 2019-03-25 Nathan Sidwell <nathan@acm.org>
4006 * lambda.c (maybe_add_lambda_conv_op): Don't add to comdat group.
4008 2019-03-22 Jakub Jelinek <jakub@redhat.com>
4011 * cp-tree.h (get_tls_wrapper_fn): Remove declaration.
4012 (maybe_get_tls_wrapper_call): Declare.
4013 * decl2.c (get_tls_wrapper_fn): Make static.
4014 (maybe_get_tls_wrapper_call): New function.
4015 * typeck.c (build_class_member_access_expr): Handle accesses to TLS
4017 * semantics.c (finish_qualified_id_expr): Likewise.
4018 (finish_id_expression_1): Use maybe_get_tls_wrapper_call.
4019 * pt.c (tsubst_copy_and_build): Likewise.
4022 * constexpr.c (struct constexpr_ctx): Add constexpr_ops_count member.
4023 (cxx_eval_constant_expression): When not skipping, not constant class
4024 or location wrapper, increment *ctx->constexpr_ops_count and if it is
4025 above constexpr_loop_nest_limit, diagnose failure.
4026 (cxx_eval_outermost_constant_expr): Add constexpr_ops_count and
4027 initialize ctx.constexpr_ops_count to its address.
4028 (is_sub_constant_expr): Likewise.
4030 2019-03-21 Jakub Jelinek <jakub@redhat.com>
4033 * call.c (filed_in_pset): Change pset from hash_set<tree> * to
4034 hash_set<tree, true> &, adjust uses accordingly.
4035 (build_aggr_conv): Change pset from hash_set<tree> *
4036 to hash_set<tree, true>. Replace goto fail; with return NULL;,
4040 * parser.c (cp_parser_lambda_introducer): Add ids and first_capture_id
4041 variables, check for duplicates in this function.
4042 * lambda.c (add_capture): Don't check for duplicates nor use
4044 (register_capture_members): Don't clear IDENTIFIER_MARKED here.
4046 2019-03-21 Paolo Carlini <paolo.carlini@oracle.com>
4049 * method.c (after_nsdmi_defaulted_late_checks): Avoid passing
4050 error_mark_node to comp_except_specs.
4052 2019-03-20 Jason Merrill <jason@redhat.com>
4054 PR c++/87480 - decltype of member access in default template arg
4055 * pt.c (type_unification_real): Accept a dependent result in
4058 2019-03-19 Martin Sebor <msebor@redhat.com>
4060 PR tree-optimization/89688
4061 * typeck2.c (store_init_value): Call braced_lists_to_string for more
4062 kinds of initializers.
4064 2019-03-18 Jason Merrill <jason@redhat.com>
4066 PR c++/89630 - ICE with dependent using-decl as template arg.
4067 * tree.c (cp_tree_equal): Always return false for USING_DECL.
4069 PR c++/89761 - ICE with sizeof... in pack expansion.
4070 * pt.c (argument_pack_element_is_expansion_p): Handle
4071 ARGUMENT_PACK_SELECT.
4073 PR c++/89640 - GNU attributes on lambda.
4074 * parser.c (cp_parser_lambda_declarator_opt): Allow GNU attributes.
4076 PR c++/89682 - wrong access error in default argument.
4077 * pt.c (tsubst_default_argument): Don't defer access checks.
4079 2019-03-18 Paolo Carlini <paolo.carlini@oracle.com>
4082 * semantics.c (finish_non_static_data_member): Check return value
4083 of context_for_name_lookup and immediately return error_mark_node
4086 2019-03-17 Jason Merrill <jason@redhat.com>
4088 PR c++/89571 - ICE with ill-formed noexcept on constructor.
4089 * pt.c (maybe_instantiate_noexcept): Only return false if defaulted.
4090 (regenerate_decl_from_template): Use it for noexcept-specs.
4092 2019-03-14 Jason Merrill <jason@redhat.com>
4094 * parser.c (cp_parser_decl_specifier_seq): Support C++20
4095 concept-definition syntax without 'bool'.
4097 2019-03-14 Jakub Jelinek <jakub@redhat.com>
4100 * semantics.c (finish_qualified_id_expr): Reject variable templates.
4103 * constexpr.c (struct constexpr_ctx): Change save_exprs type from
4104 hash_set<tree> to vec<tree>.
4105 (cxx_eval_call_expression): Adjust for save_exprs being a vec instead
4107 (cxx_eval_loop_expr): Likewise. Truncate the vector after each
4108 removal of SAVE_EXPRs from values.
4109 (cxx_eval_constant_expression) <case SAVE_EXPR>: Call safe_push
4110 method on save_exprs instead of add.
4112 2019-03-13 Jason Merrill <jason@redhat.com>
4114 PR c++/86521 - C++17 copy elision in initialization by constructor.
4115 * call.c (joust_maybe_elide_copy): New.
4118 2019-03-13 Marek Polacek <polacek@redhat.com>
4120 PR c++/88979 - further P0634 fix for constructors.
4121 * parser.c (cp_parser_decl_specifier_seq): Pass flags to
4122 cp_parser_constructor_declarator_p.
4123 (cp_parser_direct_declarator): Allow missing typename for constructor
4125 (cp_parser_constructor_declarator_p): Add FLAGS parameter. Pass it to
4126 cp_parser_type_specifier.
4128 PR c++/89686 - mixing init-capture and simple-capture in lambda.
4129 * parser.c (cp_parser_lambda_introducer): Give error when combining
4130 init-capture and simple-capture.
4132 PR c++/89660 - bogus error with -Wredundant-move.
4133 * typeck.c (maybe_warn_pessimizing_move): Only accept (T &) &arg
4134 as the std::move's argument. Don't call convert_for_initialization
4135 when warn_redundant_move isn't on.
4137 2019-03-11 Jason Merrill <jason@redhat.com>
4139 PR c++/86521 - wrong overload resolution with ref-qualifiers.
4140 * call.c (build_user_type_conversion_1): Don't use a conversion to a
4141 reference of the wrong rvalueness for direct binding.
4143 2019-03-11 Martin Liska <mliska@suse.cz>
4145 * cvt.c (build_expr_type_conversion): Wrap apostrophes
4146 in gcc internal format with %'.
4147 * decl.c (check_no_redeclaration_friend_default_args): Likewise.
4148 (grokfndecl): Likewise.
4149 * name-lookup.c (do_pushtag): Likewise.
4150 * pt.c (unify_parameter_deduction_failure): Likewise.
4151 (unify_template_deduction_failure): Likewise.
4153 2019-03-11 Martin Liska <mliska@suse.cz>
4155 * call.c (convert_arg_to_ellipsis): Wrap an option name
4156 in a string format message and fix GNU coding style.
4157 (build_over_call): Likewise.
4158 * class.c (check_field_decl): Likewise.
4159 (layout_nonempty_base_or_field): Likewise.
4160 * constexpr.c (cxx_eval_loop_expr): Likewise.
4161 * cvt.c (type_promotes_to): Likewise.
4162 * decl.c (cxx_init_decl_processing): Likewise.
4163 (mark_inline_variable): Likewise.
4164 (grokdeclarator): Likewise.
4165 * decl2.c (record_mangling): Likewise.
4166 * error.c (maybe_warn_cpp0x): Likewise.
4167 * except.c (doing_eh): Likewise.
4168 * mangle.c (maybe_check_abi_tags): Likewise.
4169 * parser.c (cp_parser_diagnose_invalid_type_name): Likewise.
4170 (cp_parser_userdef_numeric_literal): Likewise.
4171 (cp_parser_primary_expression): Likewise.
4172 (cp_parser_unqualified_id): Likewise.
4173 (cp_parser_pseudo_destructor_name): Likewise.
4174 (cp_parser_builtin_offsetof): Likewise.
4175 (cp_parser_lambda_expression): Likewise.
4176 (cp_parser_lambda_introducer): Likewise.
4177 (cp_parser_lambda_declarator_opt): Likewise.
4178 (cp_parser_selection_statement): Likewise.
4179 (cp_parser_init_statement): Likewise.
4180 (cp_parser_decomposition_declaration): Likewise.
4181 (cp_parser_function_specifier_opt): Likewise.
4182 (cp_parser_static_assert): Likewise.
4183 (cp_parser_simple_type_specifier): Likewise.
4184 (cp_parser_namespace_definition): Likewise.
4185 (cp_parser_using_declaration): Likewise.
4186 (cp_parser_ctor_initializer_opt_and_function_body): Likewise.
4187 (cp_parser_initializer_list): Likewise.
4188 (cp_parser_type_parameter_key): Likewise.
4189 (cp_parser_member_declaration): Likewise.
4190 (cp_parser_try_block): Likewise.
4191 (cp_parser_std_attribute_spec): Likewise.
4192 (cp_parser_requires_clause_opt): Likewise.
4193 * pt.c (check_template_variable): Likewise.
4194 (check_default_tmpl_args): Likewise.
4195 (push_tinst_level_loc): Likewise.
4196 (instantiate_pending_templates): Likewise.
4197 (invalid_nontype_parm_type_p): Likewise.
4198 * repo.c (get_base_filename): Likewise.
4199 * rtti.c (typeid_ok_p): Likewise.
4200 (build_dynamic_cast_1): Likewise.
4201 * tree.c (maybe_warn_parm_abi): Likewise.
4203 2019-03-08 Jakub Jelinek <jakub@redhat.com>
4206 * parser.c (cp_parser_template_declaration_after_parameters): Avoid
4207 one space before " at the end of line and another after " on another
4208 line in a string literal.
4210 PR tree-optimization/89550
4211 * semantics.c (maybe_convert_cond): Only set TREE_NO_WARNING if
4212 warning_at returned true.
4213 * decl2.c (c_parse_final_cleanups): Likewise.
4214 * typeck.c (convert_for_assignment): Likewise.
4215 * decl.c (finish_function): Likewise.
4218 * parser.c (cp_parser_asm_definition): Just warn instead of error
4219 on volatile qualifier outside of function body.
4222 * constexpr.c (potential_constant_expression_1): Reject
4223 REINTERPRET_CAST_P NOP_EXPRs.
4226 * call.c (joust): Call print_z_candidate only if pedwarn returned
4229 2019-03-07 Jason Merrill <jason@redhat.com>
4231 PR c++/88123 - lambda and using-directive.
4232 * name-lookup.c (op_unqualified_lookup)
4233 (maybe_save_operator_binding, discard_operator_bindings)
4234 (push_operator_bindings): New.
4235 * typeck.c (build_x_binary_op, build_x_unary_op): Call
4236 maybe_save_operator_binding.
4237 * decl.c (start_preparsed_function): Call push_operator_bindings.
4238 * tree.c (cp_free_lang_data): Call discard_operator_bindings.
4240 PR c++/88820 - ICE with CTAD and member template used in DMI.
4241 * pt.c (do_class_deduction): Handle parm used as its own arg.
4243 2019-03-07 Jakub Jelinek <jakub@redhat.com>
4246 * parser.c (cp_parser_asm_definition): Parse asm qualifiers even
4247 at toplevel, but diagnose them.
4249 2019-03-06 Jason Merrill <jason@redhat.com>
4251 PR c++/89381 - implicit copy and using-declaration.
4252 * class.c (classtype_has_move_assign_or_move_ctor_p): Don't consider
4253 op= brought in by a using-declaration.
4255 2019-03-06 Jakub Jelinek <jakub@redhat.com>
4258 * init.c (build_value_init_noctor): Ignore flexible array members.
4260 2019-03-06 Jason Merrill <jason@redhat.com>
4262 PR c++/89576 - if constexpr of lambda capture.
4263 * semantics.c (maybe_convert_cond): Do convert a non-dependent
4264 condition in a template.
4265 * typeck.c (condition_conversion): Handle being called in a
4268 2019-03-06 Marek Polacek <polacek@redhat.com>
4270 PR c++/87378 - bogus -Wredundant-move warning.
4271 * typeck.c (maybe_warn_pessimizing_move): See if the maybe-rvalue
4272 overload resolution would actually succeed.
4274 2019-03-05 Jason Merrill <jason@redhat.com>
4276 * class.c (is_really_empty_class): Add ignore_vptr parm.
4277 (trivial_default_constructor_is_constexpr): Pass it.
4278 * call.c (build_over_call): Pass it.
4279 * constexpr.c (cxx_eval_constant_expression): Pass it instead of
4280 checking TYPE_POLYMORPHIC_P.
4281 (cxx_eval_component_reference, potential_constant_expression_1):
4283 * cp-gimplify.c (simple_empty_class_p): Pass it.
4284 * init.c (expand_aggr_init_1): Pass it.
4286 2019-03-04 Paolo Carlini <paolo.carlini@oracle.com>
4289 * parser.c (cp_parser_class_head): Reject TYPE_BEING_DEFINED too.
4291 2019-03-04 Jakub Jelinek <jakub@redhat.com>
4294 * call.c (field_in_pset): New function.
4295 (build_aggr_conv): Handle CONSTRUCTOR_IS_DESIGNATED_INIT correctly.
4297 2019-03-02 Jakub Jelinek <jakub@redhat.com>
4300 * cp-tree.h (CONSTRUCTOR_IS_DESIGNATED_INIT): Define.
4301 * parser.c (cp_parser_braced_list): Adjust cp_parser_initializer_list
4302 caller, set CONSTRUCTOR_IS_DESIGNATED_INIT.
4303 (cp_parser_initializer_list): Add designated parameter, set *designated
4304 to a bool whether any designators were parsed.
4305 * decl.c (reshape_init): Copy over CONSTRUCTOR_IS_DESIGNATED_INIT if
4307 * pt.c (tsubst_copy_and_build): Likewise.
4308 * call.c (implicit_conversion): If CONSTRUCTOR_IS_DESIGNATED_INIT,
4309 don't call build_list_conv, nor build_complex_conv, nor attempt to
4310 convert a single element initializer to scalar.
4312 2019-03-01 Marek Polacek <polacek@redhat.com>
4314 PR c++/89537 - missing location for error with non-static member fn.
4315 * call.c (resolve_args): Use EXPR_LOCATION.
4316 * typeck.c (build_class_member_access_expr): Use input_location.
4318 PR c++/89532 - ICE with incomplete type in decltype.
4319 * semantics.c (finish_compound_literal): Return error_mark_node
4320 if digest_init_flags returns error_mark_node.
4322 2019-03-01 Jakub Jelinek <jakub@redhat.com>
4324 Implement P1002R1, Try-catch blocks in constexpr functions
4326 * parser.c (cp_parser_ctor_initializer_opt_and_function_body):
4327 Diagnose constexpr ctor or function with function-try-block with
4328 pedwarn for c++17 and earlier. Formatting fix.
4329 (cp_parser_try_block): Use pedwarn instead of error and only for
4330 c++17 and earlier when try block appears in constexpr function.
4331 * constexpr.c (build_constexpr_constructor_member_initializers):
4332 Handle TRY_BLOCK here instead of erroring on it.
4334 2019-02-28 Jason Merrill <jason@redhat.com>
4336 PR c++/88183 - ICE with .* fold-expression.
4337 * pt.c (fold_expression) [DOTSTAR_EXPR]: Remove special handling.
4339 PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
4340 * class.c, lambda.c, pt.c: Revert earlier change.
4341 * lambda.c (add_capture): Don't special-case capture of dependent
4344 * name-lookup.c (print_binding_level): Print this_entity.
4346 2019-02-27 Marek Polacek <polacek@redhat.com>
4348 PR c++/88857 - ICE with value-initialization of argument in template.
4349 * call.c (convert_like_real): Don't call build_value_init in template.
4351 2019-02-27 Jason Merrill <jason@redhat.com>
4353 PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
4354 * semantics.c (process_outer_var_ref): Do capture dependent vars.
4355 * class.c (finish_struct): Only add TAG_DEFN if T is in
4356 current_function_decl.
4357 * lambda.c (vla_capture_type): Force the capture type out into the
4358 lambda's enclosing function.
4359 (add_capture): Pass in the lambda.
4360 * pt.c (tsubst_lambda_expr): complete_type a VLA capture type.
4362 2019-02-27 Marek Polacek <polacek@redhat.com>
4364 PR c++/89511 - ICE with using-declaration and unscoped enumerator.
4365 * parser.c (cp_parser_using_declaration): For an unscoped enum
4366 only use its context if it's not a function declaration.
4368 2019-02-27 Paolo Carlini <paolo.carlini@oracle.com>
4371 * method.c (process_subob_fn): When maybe_instantiate_noexcept
4372 returns false don't call merge_exception_specifiers.
4374 2019-02-27 Paolo Carlini <paolo.carlini@oracle.com>
4377 * parser.c (cp_parser_noexcept_specification_opt): Return NULL_TREE
4378 for a non-constant parsed expression.
4380 2019-02-26 Jakub Jelinek <jakub@redhat.com>
4383 * constexpr.c (cxx_eval_store_expression): When changing active union
4384 member, set no_zero_init.
4386 2019-02-23 Marek Polacek <polacek@redhat.com>
4388 PR c++/88294 - ICE with non-constant noexcept-specifier.
4389 * pt.c (maybe_instantiate_noexcept): Set up the list of local
4390 specializations. Set current_class_{ptr,ref}.
4392 2019-02-22 David Malcolm <dmalcolm@redhat.com>
4395 * parser.c (cp_parser_unqualified_id): Capture and use locations
4398 2019-02-22 Marek Polacek <polacek@redhat.com>
4400 PR c++/89420 - ICE with CAST_EXPR in explicit-specifier.
4401 * decl.c (build_explicit_specifier): Don't check
4402 processing_template_decl. Call instantiation_dependent_expression_p
4403 instead of value_dependent_expression_p. Call
4404 instantiate_non_dependent_expr_sfinae before
4405 build_converted_constant_expr instead of calling
4406 instantiate_non_dependent_expr after it. Add
4407 processing_template_decl_sentinel.
4409 2019-02-22 Thomas Schwinge <thomas@codesourcery.com>
4411 * parser.c (cp_parser_oacc_simple_clause): Remove parser formal
4412 parameter, move loc formal parameter to the front. Adjust all
4414 (cp_parser_oacc_shape_clause): Add loc formal parameter. Adjust
4417 2019-02-21 Jason Merrill <jason@redhat.com>
4419 PR c++/87685 - generic lambda 'this' capture error.
4420 * lambda.c (lambda_expr_this_capture): Change add_capture_p to int.
4421 (maybe_generic_this_capture): Pass -1.
4423 PR c++/88394 - ICE with VLA init-capture.
4424 * lambda.c (is_normal_capture_proxy): Check DECL_CAPTURED_VARIABLE.
4426 PR c++/88869 - C++17 ICE with CTAD and explicit specialization.
4427 * pt.c (do_class_deduction): Don't include explicit specialization
4430 PR c++/89422 - ICE with -g and lambda in default arg in template.
4431 * pt.c (tsubst_function_decl): SET_DECL_FRIEND_CONTEXT sooner.
4433 2019-02-21 Jason Merrill <jason@redhat.com>
4435 PR c++/88419 - C++17 ICE with class template arg deduction.
4436 * pt.c (make_template_placeholder): Set TYPE_CANONICAL after
4437 CLASS_PLACEHOLDER_TEMPLATE.
4439 2019-02-21 Jakub Jelinek <jakub@redhat.com>
4442 * constexpr.c (struct constexpr_fundef): Add parms and result members.
4443 (retrieve_constexpr_fundef): Adjust for the above change.
4444 (register_constexpr_fundef): Save constexpr body with copy_fn,
4445 temporarily set DECL_CONTEXT on DECL_RESULT before that.
4446 (get_fundef_copy): Change FUN argument to FUNDEF with
4447 constexpr_fundef * type, grab body and parms/result out of
4448 constexpr_fundef struct and temporarily change it for copy_fn calls
4450 (cxx_eval_builtin_function_call): For __builtin_FUNCTION temporarily
4451 adjust current_function_decl from ctx->call context. Test
4452 !potential_constant_expression instead of !is_constant_expression.
4453 (cxx_bind_parameters_in_call): Grab parameters from new_call. Undo
4454 convert_for_arg_passing changes for TREE_ADDRESSABLE type passing.
4455 (cxx_eval_call_expression): Adjust get_fundef_copy caller.
4456 (cxx_eval_conditional_expression): For IF_STMT, allow then or else
4457 operands to be NULL.
4458 (label_matches): Handle BREAK_STMT and CONTINUE_STMT.
4459 (cxx_eval_loop_expr): Add support for FOR_STMT, WHILE_STMT and DO_STMT.
4460 (cxx_eval_switch_expr): Add support for SWITCH_STMT.
4461 (cxx_eval_constant_expression): Handle IF_STMT, FOR_STMT, WHILE_STMT,
4462 DO_STMT, CONTINUE_STMT, SWITCH_STMT, BREAK_STMT and CONTINUE_STMT.
4463 For SIZEOF_EXPR, recurse on the result of fold_sizeof_expr. Ignore
4464 DECL_EXPR with USING_DECL operand.
4465 * lambda.c (maybe_add_lambda_conv_op): Build thisarg using
4466 build_int_cst to make it a valid constant expression.
4468 2019-02-20 Jason Merrill <jason@redhat.com>
4470 PR c++/88690 - C++17 ICE with empty base in aggregate.
4471 * typeck2.c (process_init_constructor_record): Skip trivial
4472 initialization of an empty base.
4474 2019-02-21 Richard Biener <rguenther@suse.de>
4477 * vtable-class-hierarchy.c (vtv_generate_init_routine): Do not
4478 make symtab process new functions here.
4480 2019-02-20 Jason Merrill <jason@redhat.com>
4482 PR c++/87921 - wrong error with inline static data member.
4483 * decl2.c (finish_static_data_member_decl): Don't set DECL_IN_AGGR_P
4484 for a non-template inline variable. Do nothing for an
4485 already-instantiated variable.
4486 (c_parse_final_cleanups): Check DECL_IN_AGGR_P without
4488 * decl.c (check_initializer): Likewise.
4489 (make_rtl_for_nonlocal_decl): Likewise.
4490 * pt.c (instantiate_decl): Likewise.
4491 * typeck2.c (store_init_value): Likewise.
4493 2019-02-20 Jakub Jelinek <jakub@redhat.com>
4496 * decl2.c (c_parse_final_cleanups): Move TREE_ASM_WRITTEN setting
4497 for flag_syntax_only from here...
4498 * semantics.c (expand_or_defer_fn_1): ... here.
4501 * decl.c (maybe_commonize_var): When clearing TREE_PUBLIC and
4502 DECL_COMMON, set DECL_INTERFACE_KNOWN.
4505 * constexpr.c (cxx_eval_store_expression): Diagnose changing of active
4506 union member for -std=c++17 and earlier.
4508 2019-02-19 Jason Merrill <jason@redhat.com>
4510 PR c++/87513 - 'sorry' mangling PMF template-id.
4511 * mangle.c (write_expression): Handle SCOPE_REF to BASELINK.
4513 2019-02-19 Jason Merrill <jason@redhat.com>
4515 PR c++/88380 - wrong-code with flexible array and NSDMI.
4516 * typeck2.c (process_init_constructor_record): Skip flexarrays.
4518 2019-02-20 will wray <wjwray@gmail.com>
4520 PR c++/88572 - wrong handling of braces on scalar init.
4521 * decl.c (reshape_init_r): Allow braces around scalar initializer
4522 within aggregate init. Reject double braced-init of scalar
4525 2019-02-20 Paolo Carlini <paolo.carlini@oracle.com>
4528 * pt.c (tsubst_init): Diagnose an initializer expanding to an
4529 empty list of expressions; tweak wrt dependent types.
4530 (regenerate_decl_from_template): For VAR_DECLs call tsubst_init
4531 instead of tsubst_expr.
4533 2019-02-19 Jason Merrill <jason@redhat.com>
4535 PR c++/88368 - wrong 'use of deleted function'
4536 * method.c (walk_field_subobs): Remember errors from get_nsdmi.
4537 (get_defaulted_eh_spec): Call push_tinst_level.
4538 * pt.c (maybe_instantiate_noexcept): Keep error_mark_node.
4539 * typeck2.c (merge_exception_specifiers): Handle error_mark_node.
4541 2019-02-19 Chung-Lin Tang <cltang@codesourcery.com>
4544 * parser.c (cp_parser_oacc_clause_wait): Add representation of wait
4545 clause without argument as 'wait (GOMP_ASYNC_NOVAL)', adjust comments.
4547 2019-02-19 Jakub Jelinek <jakub@redhat.com>
4550 * lambda.c (maybe_generic_this_capture): Don't check
4551 DECL_NONSTATIC_MEMBER_FUNCTION_P on USING_DECLs.
4554 * typeck.c (build_reinterpret_cast_1): Don't handle void to
4555 && conversion go through build_target_expr_with_type.
4558 * error.c (qualified_name_lookup_error): Only call
4559 suggest_alternative_in_scoped_enum if name is IDENTIFIER_NODE.
4561 2019-02-19 Tom Honermann <tom@honermann.net>
4563 * name-lookup.c (get_std_name_hint): Added u8string as a name hint.
4565 2019-02-18 Jason Merrill <jason@redhat.com>
4567 PR c++/89336 - multiple stores in constexpr stmt.
4568 * constexpr.c (cxx_eval_store_expression): Preevaluate scalar or
4571 * pt.c (check_explicit_specialization): If the declarator is a
4572 template-id, only check whether the arguments are dependent.
4574 Improve duplicate [[likely]] diagnostic.
4575 * parser.c (cp_parser_statement): Make attrs_loc a range. Pass it
4576 to process_stmt_hotness_attribute.
4577 * cp-gimplify.c (process_stmt_hotness_attribute): Take attrs_loc.
4578 (genericize_if_stmt): Use likely/unlikely instead of predictor_name.
4580 2019-02-17 Marek Polacek <polacek@redhat.com>
4582 PR c++/89217 - ICE with list-initialization in range-based for loop.
4583 * constexpr.c (unshare_constructor): No longer static.
4584 * cp-tree.h (unshare_constructor): Declare.
4585 * semantics.c (finish_compound_literal): When dealing with a
4586 non-dependent expression in a template, return the original
4587 expression. Pass LOOKUP_NO_NARROWING to digest_init_flags.
4589 2019-02-13 Marek Polacek <polacek@redhat.com>
4591 PR c++/89297 - ICE with OVERLOAD in template.
4592 * semantics.c (finish_compound_literal): Call
4593 instantiate_non_dependent_expr_sfinae.
4595 2019-02-13 Alexandre Oliva <aoliva@redhat.com>
4598 * cp-tree.h (USING_DECL_SCOPE): Use result rather than type.
4599 * name-lookup.c (strip_using_decl): Use USING_DECL_SCOPE.
4600 * search.c (protected_accessible_p): Follow USING_DECL_DECLS.
4601 (shared_member_p): Likewise.
4602 (lookup_member): Likewise.
4603 * decl.c (grok_special_member_properties): Skip USING_DECLs.
4604 * semantics.c (finish_omp_declare_simd_methods): Likewise.
4605 (finish_qualified_id_expr): Do not call shared_member_p with
4609 * pt.c (tsubst_lambda_expr): Avoid duplicate tsubsting.
4610 Move cp_evaluated resetting before signature tsubsting.
4611 (gen_elem_of_pack_expansion_instantiation): Separate local
4612 specializations per index.
4614 2019-02-13 David Malcolm <dmalcolm@redhat.com>
4617 * class.c (add_method): Drop destructor assertion.
4619 2019-02-13 Paolo Carlini <paolo.carlini@oracle.com>
4622 * decl.c (make_typename_type): Allow for TYPE_PACK_EXPANSION as
4623 context (the first argument).
4624 * pt.c (tsubst, case TYPENAME_TYPE): Handle TYPE_PACK_EXPANSION
4627 2019-02-12 Jason Merrill <jason@redhat.com>
4629 PR c++/89144 - link error with constexpr initializer_list.
4630 * call.c (convert_like_real) [ck_list]: Don't allocate a temporary
4631 array for an empty list.
4632 * typeck2.c (store_init_value): Don't use cxx_constant_init in a
4635 2019-02-11 Jason Merrill <jason@redhat.com>
4637 PR c++/89241 - ICE with __func__ in lambda in template.
4638 * pt.c (enclosing_instantiation_of): Also check
4639 instantiated_lambda_fn_p for the template context.
4641 2019-02-11 Marek Polacek <polacek@redhat.com>
4643 PR c++/89212 - ICE converting nullptr to pointer-to-member-function.
4644 * pt.c (tsubst_copy_and_build) <case CONSTRUCTOR>: Return early for
4645 null member pointer value.
4647 2019-02-11 Jakub Jelinek <jakub@redhat.com>
4650 * pt.c (convert_nontype_argument): Pass true as manifestly_const_eval
4651 to maybe_constant_value calls.
4653 2019-02-11 Marek Polacek <polacek@redhat.com>
4655 * typeck2.c (digest_init_r): Remove commented code.
4657 2019-02-11 Martin Sebor <msebor@redhat.com>
4660 * decl.c (compute_array_index_type_loc): Preserve signed sizes
4661 for diagnostics. Call valid_array_size_p instead of error.
4662 * init.c (build_new_1): Compute size for diagnostic. Call
4663 invalid_array_size_error
4664 (build_new): Call valid_array_size_p instead of error.
4666 2019-02-07 Alexandre Oliva <aoliva@redhat.com>
4669 * call.c (compare_ics): Deal with ck_aggr in either cs.
4671 2019-02-06 David Malcolm <dmalcolm@redhat.com>
4674 * call.c (get_location_for_expr_unwinding_for_system_header): New
4676 (conversion_null_warnings): Use it when getting locations for
4677 EXPR, effectively adding a call to
4678 get_location_for_expr_unwinding_for_system_header for
4679 -Wconversion-null and making use of EXPR_LOCATION for
4680 -Wzero-as-null-pointer-constant.
4682 2019-02-05 Jakub Jelinek <jakub@redhat.com>
4685 * optimize.c (maybe_thunk_body): Clear TREE_ADDRESSABLE on
4686 PARM_DECLs of the thunk.
4687 * lambda.c (maybe_add_lambda_conv_op): Likewise.
4689 2019-02-05 Marek Polacek <polacek@redhat.com>
4691 PR c++/89158 - by-value capture of constexpr variable broken.
4692 * call.c (convert_like_real) <case ck_user>: Call mark_exp_read
4693 instead of mark_rvalue_use.
4695 2019-02-05 Alexandre Oliva <aoliva@redhat.com>
4698 * pt.c (instantiates_primary_template_p): New.
4699 (type_dependent_expression_p): Use it.
4701 2019-02-01 Jason Merrill <jason@redhat.com>
4703 PR c++/88761 - ICE with reference capture of constant.
4704 * lambda.c (mark_const_cap_r): Do walk subtrees of DECL_EXPR for
4707 2019-02-01 Marek Polacek <polacek@redhat.com>
4709 PR c++/88325 - ICE with invalid out-of-line template member definition.
4710 * parser.c (cp_parser_class_name): Don't call make_typename_type
4713 2019-02-01 Jakub Jelinek <jakub@redhat.com>
4716 * parser.c (cp_parser_gnu_attributes_opt): Set ok to false
4717 if require_open failed.
4719 2019-01-31 Marek Polacek <polacek@redhat.com>
4721 PR c++/89083, c++/80864 - ICE with list initialization in template.
4722 * constexpr.c (adjust_temp_type): Use copy_node and change the type
4723 instead of using build_constructor.
4724 * decl.c (reshape_init_r): Don't reshape a digested initializer.
4725 Return the initializer for COMPOUND_LITERAL_P.
4727 PR c++/88983 - ICE with switch in constexpr function.
4728 * constexpr.c (cxx_eval_switch_expr): Use SWITCH_COND and SWITCH_BODY.
4729 (cxx_eval_constant_expression) <case COND_EXPR>: Don't look for the
4730 label in the else branch if we found it in the then branch.
4732 2019-01-30 Jason Merrill <jason@redhat.com>
4734 PR c++/88752 - ICE with lambda and constexpr if.
4735 * cp-tree.h (LAMBDA_EXPR_INSTANTIATED): New.
4736 * pt.c (tsubst_lambda_expr): Set it.
4737 (instantiated_lambda_fn_p): Check it.
4738 (enclosing_instantiation_of): Use it.
4740 2019-01-31 Jakub Jelinek <jakub@redhat.com>
4743 * cxx-pretty-print.c (pp_cxx_enumeration_constant): Print always as
4744 a C cast in pp_c_flag_gnu_v3 mode.
4746 2019-01-30 Jakub Jelinek <jakub@redhat.com>
4749 * lambda.c (is_capture_proxy): Don't return true for
4750 DECL_OMP_PRIVATIZED_MEMBER artificial vars.
4752 2019-01-30 Marek Polacek <polacek@redhat.com>
4754 PR c++/89119 - ICE with value-initialization in template.
4755 * pt.c (tsubst_copy_and_build): Handle RANGE_EXPR.
4757 2019-01-29 Jason Merrill <jason@redhat.com>
4759 PR c++/86943 - wrong code converting lambda to function pointer.
4760 * lambda.c (maybe_add_lambda_conv_op): Use a template-id in the
4761 call. Only forward parms for decltype.
4762 * pt.c (tsubst_copy_and_build) [CALL_EXPR]: Handle CALL_FROM_THUNK_P
4764 * typeck.c (check_return_expr): Don't mess with a thunk call.
4766 2019-01-28 Jason Merrill <jason@redhat.com>
4768 PR c++/89089 - ICE with [[no_unique_address]].
4769 PR c++/88865 - wrong layout with [[no_unique_address]].
4770 * class.c (check_field_decls): A potentially-overlapping field makes
4771 the class non-layout-POD, but not non-empty.
4772 (end_of_class): Always consider empty data members.
4773 (layout_class_type): Set DECL_SIZE for empty fields.
4775 2019-01-28 Marek Polacek <polacek@redhat.com>
4777 PR c++/88358 - name wrongly treated as type.
4778 * parser.c (cp_parser_direct_declarator): Don't assume a qualified-id
4779 in parameter-list is a type if the function's declarator-id is not
4782 2019-01-27 Marek Polacek <polacek@redhat.com>
4784 PR c++/88815 - narrowing conversion lost in decltype.
4785 PR c++/78244 - narrowing conversion in template not detected.
4786 * cp-tree.h (CONSTRUCTOR_IS_DEPENDENT): New.
4787 * pt.c (instantiation_dependent_r): Consider a CONSTRUCTOR with
4788 CONSTRUCTOR_IS_DEPENDENT instantiation-dependent.
4789 * semantics.c (finish_compound_literal): When the compound literal
4790 isn't instantiation-dependent and the type isn't type-dependent,
4791 fall back to the normal processing. Set CONSTRUCTOR_IS_DEPENDENT.
4793 PR c++/89024 - ICE with incomplete enum type.
4794 * call.c (standard_conversion): When converting an
4795 ARITHMETIC_TYPE_P to an incomplete type, return NULL.
4797 2019-01-25 Paolo Carlini <paolo.carlini@oracle.com>
4800 * call.c (build_op_delete_call): Implement 7.6.2.5/(10.1).
4801 * decl2.c (coerce_delete_type): Use build_pointer_type instead
4804 2019-01-24 Jason Merrill <jason@redhat.com>
4806 PR c++/89001 - mangling of reference temporaries
4807 * cp-tree.h (struct saved_scope): Add ref_temp_count.
4808 (current_ref_temp_count): New macro.
4809 * mangle.c (mangle_ref_init_variable): Use it.
4810 * typeck2.c (store_init_value): Clear it.
4811 * call.c (make_temporary_var_for_ref_to_temp): Copy public and
4814 2019-01-24 Jakub Jelinek <jakub@redhat.com>
4817 * semantics.c (finish_omp_cancel): Diagnose more than one if
4818 on #pragma omp cancel with different modifiers. Use
4819 maybe_convert_cond when not in template or build_x_binary_op
4822 2019-01-23 Marek Polacek <polacek@redhat.com>
4824 PR c++/88757 - qualified name treated wrongly as type.
4825 * parser.c (cp_parser_direct_declarator): Don't treat qualified-ids
4826 in parameter-list as types if name lookup for declarator-id didn't
4827 find one or more function templates.
4829 2019-01-23 Jakub Jelinek <jakub@redhat.com>
4832 * cp-gimplify.c (genericize_cp_loop): Call begin_bc_block only
4833 after genericizing cond and incr expressions.
4836 * cp-gimplify.c (genericize_switch_stmt): Move cond genericization
4837 before the begin_bc_block call.
4839 2019-01-21 Jason Merrill <jason@redhat.com>
4841 PR c++/87893 - constexpr ctor ICE on ARM.
4842 PR c++/88293 - ICE with comma expression.
4843 * constexpr.c (initialized_type): Don't shortcut non-void type.
4844 Handle COMPOUND_EXPR.
4845 (cxx_eval_outermost_constant_expr): Return early for void type.
4847 2019-01-21 Jakub Jelinek <jakub@redhat.com>
4850 * optimize.c (cxx_copy_decl): New function.
4851 (clone_body): Use it instead of copy_decl_no_change.
4854 * typeck.c (cp_build_binary_op): Don't instrument
4855 SANITIZE_POINTER_COMPARE if processing_template_decl.
4856 (pointer_diff): Similarly for SANITIZE_POINTER_SUBTRACT.
4858 2019-01-18 Jason Merrill <jason@redhat.com>
4860 PR c++/88875 - error with explicit list constructor.
4861 * call.c (reference_binding): Don't modify EXPR. Set
4862 need_temporary_p on the ck_user conversion for a temporary.
4863 (convert_like_real): Check it.
4865 2019-01-18 H.J. Lu <hongjiu.lu@intel.com>
4869 * call.c (convert_for_arg_passing): Upate the
4870 warn_for_address_or_pointer_of_packed_member call.
4871 * typeck.c (convert_for_assignment): Likewise.
4873 2019-01-17 Jason Merrill <jason@redhat.com>
4875 PR c++/86205 - ICE with ?: of throw and template-id.
4876 * pt.c (resolve_nondeduced_context_or_error): Split out from...
4877 * typeck.c (decay_conversion): ...here.
4878 * call.c (build_conditional_expr_1): Use it.
4880 PR c++/86740, ICE with constexpr if and nested generic lambdas.
4881 * tree.c (cp_walk_subtrees): Handle LAMBDA_EXPR.
4883 2019-01-17 Paolo Carlini <paolo.carlini@oracle.com>
4885 * decl.c (grokdeclarator): Use typespec_loc in error messages
4886 about 'auto' and trailing return type.
4888 2019-01-17 David Malcolm <dmalcolm@redhat.com>
4891 * class.c (add_method): Don't use DECL_DESTRUCTOR_P on
4894 2019-01-17 Nathan Sidwell <nathan@acm.org>
4897 * semantics.c (process_outer_var_ref): Only skip dependent types
4900 2019-01-17 Alexandre Oliva <aoliva@redhat.com>
4903 * cp-tree.h (saved_scope): Add suppress_location_wrappers.
4904 * name-lookup.c (do_push_to_top_level): Save and reset it.
4905 (do_pop_from_top_level): Restore it.
4908 * pt.c (make_template_placeholder): Use auto_identifier.
4909 (is_auto): Drop CLASS_PLACEHOLDER_TEMPLATE test.
4910 * error.c (dump_type): Handle template placeholders.
4911 * cxx-pretty-print.c (pp_cx_unqualified_id): Likewise.
4914 * cvt.c (convert_to_void): Handle all cdtor calls as if
4917 2019-01-16 Paolo Carlini <paolo.carlini@oracle.com>
4919 * decl.c (grokdeclarator): Use locations[ds_storage_class] in
4920 error messages about ill-formed uses of mutable.
4922 2019-01-16 Marek Polacek <polacek@redhat.com>
4924 PR c++/78244 - narrowing conversion in template not detected.
4925 * call.c (perform_implicit_conversion_flags): Set
4926 IMPLICIT_CONV_EXPR_BRACED_INIT.
4927 * cp-tree.h (IMPLICIT_CONV_EXPR_BRACED_INIT): New.
4928 * pt.c (tsubst_copy_and_build): Use it.
4930 2019-01-15 David Malcolm <dmalcolm@redhat.com>
4933 * pt.c (build_deduction_guide): Bail out if tsubst_arg_types
4936 2019-01-15 Paolo Carlini <paolo.carlini@oracle.com>
4938 * decl.c (start_decl): Improve error location.
4939 * decl2.c (grokfield): Likewise.
4941 2019-01-15 Paolo Carlini <paolo.carlini@oracle.com>
4943 * decl.c (grokdeclarator): Move further up the location_t loc
4944 declaration and use the location when building a TYPE_DECL for
4946 * decl2.c (grokbitfield): Use DECL_SOURCE_LOCATION in the error
4947 about an ill-formed bit-field as typedef.
4949 2019-01-14 Marek Polacek <polacek@redhat.com>
4951 PR c++/88830 - ICE with abstract class.
4952 * decl2.c (maybe_emit_vtables): Check CLASSTYPE_LAZY_DESTRUCTOR.
4955 PR c++/88825 - ICE with bogus function return type deduction.
4956 * typeck.c (can_do_nrvo_p): Check error_mark_node.
4958 2019-01-14 Tom Honermann <tom@honermann.net>
4960 Implement P0482R5, char8_t: A type for UTF-8 characters and strings
4961 * cvt.c (type_promotes_to): Handle char8_t promotion.
4962 * decl.c (grokdeclarator): Handle invalid type specifier
4963 combinations involving char8_t.
4964 * lex.c (init_reswords): Add char8_t as a reserved word.
4965 * mangle.c (write_builtin_type): Add name mangling for char8_t (Du).
4966 * parser.c (cp_keyword_starts_decl_specifier_p)
4967 (cp_parser_simple_type_specifier): Recognize char8_t as a simple
4969 (cp_parser_string_literal): Use char8_array_type_node for the type
4971 (cp_parser_set_decl_spec_type): Tolerate char8_t typedefs in system
4973 * rtti.c (emit_support_tinfos): type_info support for char8_t.
4974 * tree.c (char_type_p): Recognize char8_t as a character type.
4975 * typeck.c (string_conv_p): Handle conversions of u8 string
4976 literals of char8_t type.
4977 (check_literal_operator_args): Handle UDLs with u8 string literals
4979 * typeck2.c (ordinary_char_type_p): New.
4980 (digest_init_r): Disallow initializing a char array with a u8 string
4983 2019-01-14 Martin Liska <mliska@suse.cz>
4985 PR gcov-profile/88263
4986 * decl2.c (get_tls_wrapper_fn): Use DECL_SOURCE_LOCATION
4987 as location of the TLS wrapper.
4989 2019-01-12 Paolo Carlini <paolo.carlini@oracle.com>
4991 * decl.c (cp_finish_decl): Improve error location.
4992 * decl2.c (grokfield): Likewise, improve two locations.
4994 2019-01-11 Marek Polacek <polacek@redhat.com>
4996 PR c++/88692, c++/87882 - -Wredundant-move false positive with *this.
4997 * typeck.c (maybe_warn_pessimizing_move): Return if ARG isn't
5000 2019-01-11 Jason Merrill <jason@redhat.com>
5002 PR c++/88312 - pack expansion of decltype.
5003 * pt.c (instantiation_dependent_r): A template non-type parameter
5004 pack is instantiation-dependent.
5006 2019-01-11 Jason Merrill <jason@redhat.com>
5008 PR c++/88613 - ICE with use of const var in lambda.
5009 * expr.c (mark_use): Fix location wrapper handling.
5010 * cp-gimplify.c (cp_fold_maybe_rvalue): Call mark_rvalue_use.
5012 2019-01-11 Tobias Burnus <burnus@net-b.de>
5015 * decl2.c (maybe_emit_vtables): If needed, generate code for
5016 the destructor of an abstract class.
5017 (mark_used): Update comment for older function-name change.
5019 2019-01-11 Paolo Carlini <paolo.carlini@oracle.com>
5021 * decl.c (start_decl): Improve error location.
5022 (grokdeclarator): Likewise, improve two locations.
5024 2019-01-09 Sandra Loosemore <sandra@codesourcery.com>
5028 * cp-tree.h: Mechanically replace "can not" with "cannot".
5029 * parser.c: Likewise.
5032 2019-01-08 Paolo Carlini <paolo.carlini@oracle.com>
5034 * decl.c (grok_reference_init): Improve error location.
5035 (grokdeclarator): Likewise, improve two locations.
5037 2019-01-08 Marek Polacek <polacek@redhat.com>
5039 PR c++/88538 - braced-init-list in template-argument-list.
5040 * parser.c (cp_parser_template_argument): Handle braced-init-list when
5043 PR c++/88548 - this accepted in static member functions.
5044 * parser.c (cp_debug_parser): Adjust printing of
5045 local_variables_forbidden_p.
5046 (cp_parser_new): Set local_variables_forbidden_p to 0 rather than false.
5047 (cp_parser_primary_expression): When checking
5048 local_variables_forbidden_p, use THIS_FORBIDDEN or
5049 LOCAL_VARS_FORBIDDEN.
5050 (cp_parser_lambda_body): Update the type of
5051 local_variables_forbidden_p. Set it to 0 rather than false.
5052 (cp_parser_condition): Adjust call to cp_parser_declarator.
5053 (cp_parser_explicit_instantiation): Likewise.
5054 (cp_parser_init_declarator): Likewise.
5055 (cp_parser_declarator): New parameter. Use it.
5056 (cp_parser_direct_declarator): New parameter. Use it to set
5057 local_variables_forbidden_p. Adjust call to cp_parser_declarator.
5058 (cp_parser_type_id_1): Adjust call to cp_parser_declarator.
5059 (cp_parser_parameter_declaration): Likewise.
5060 (cp_parser_default_argument): Update the type of
5061 local_variables_forbidden_p. Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
5063 (cp_parser_member_declaration): Tell cp_parser_declarator if we saw
5064 'static' or 'friend'.
5065 (cp_parser_exception_declaration): Adjust call to cp_parser_declarator.
5066 (cp_parser_late_parsing_default_args): Update the type of
5067 local_variables_forbidden_p. Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
5069 (cp_parser_cache_defarg): Adjust call to cp_parser_declarator.
5070 (cp_parser_objc_class_ivars): Likewise.
5071 (cp_parser_objc_struct_declaration): Likewise.
5072 (cp_parser_omp_for_loop_init): Likewise.
5073 * parser.h (cp_parser): Change the type of local_variables_forbidden_p
5075 (LOCAL_VARS_FORBIDDEN, LOCAL_VARS_AND_THIS_FORBIDDEN, THIS_FORBIDDEN):
5078 2019-01-08 Paolo Carlini <paolo.carlini@oracle.com>
5080 * decl.c (start_decl): Improve permerror location.
5082 2019-01-08 Jonathan Wakely <jwakely@redhat.com>
5083 Jakub Jelinek <jakub@redhat.com>
5086 * decl.c (finish_function): For -Wreturn-type don't add a return *this;
5087 fixit hint if current_class_ref is NULL. Use a single if instead of
5090 2019-01-07 Paolo Carlini <paolo.carlini@oracle.com>
5092 * decl.c (start_decl): Improve two error_at locations.
5093 (expand_static_init): Likewise.
5095 2019-01-07 Marek Polacek <polacek@redhat.com>
5097 PR c++/88741 - wrong error with initializer-string.
5098 * decl.c (cp_complete_array_type): Strip any location wrappers.
5100 2019-01-07 Bernd Edlinger <bernd.edlinger@hotmail.de>
5106 * cp-tree.h (LOOKUP_ALLOW_FLEXARRAY_INIT): New flag value.
5107 * typeck2.c (digest_init_r): Raise an error for non-static
5108 initialization of a flexible array member.
5109 (process_init_constructor, massage_init_elt,
5110 process_init_constructor_array, process_init_constructor_record,
5111 process_init_constructor_union, process_init_constructor): Add the
5112 flags parameter and pass it thru.
5113 (store_init_value): Pass LOOKUP_ALLOW_FLEXARRAY_INIT parameter to
5114 digest_init_flags for static decls.
5116 2019-01-07 Jakub Jelinek <jakub@redhat.com>
5119 * cp-tree.h (cp_build_vec_convert): Declare.
5120 * parser.c (cp_parser_postfix_expression): Parse
5121 __builtin_convertvector.
5122 * constexpr.c: Include fold-const-call.h.
5123 (cxx_eval_internal_function): Handle IFN_VEC_CONVERT.
5124 (potential_constant_expression_1): Likewise.
5125 * semantics.c (cp_build_vec_convert): New function.
5126 * pt.c (tsubst_copy_and_build): Handle CALL_EXPR to
5129 2019-01-03 Jakub Jelinek <jakub@redhat.com>
5132 * decl.c (builtin_function_1): Return result of pushdecl_top_level
5133 or pushdecl rather than decl.
5135 2019-01-03 Paolo Carlini <paolo.carlini@oracle.com>
5137 * tree.c (handle_nodiscard_attribute): Improve warning location.
5139 2019-01-02 Marek Polacek <polacek@redhat.com>
5141 PR c++/88612 - ICE with -Waddress-of-packed-member.
5142 * call.c (convert_for_arg_passing): Only give warnings with tf_warning.
5143 * typeck.c (convert_for_assignment): Likewise.
5145 PR c++/88631 - CTAD failing for value-initialization.
5146 * typeck2.c (build_functional_cast): Try deducing the template
5147 arguments even if there are no arguments to deduce from.
5149 2019-01-01 Jakub Jelinek <jakub@redhat.com>
5151 Update copyright years.
5153 Copyright (C) 2019 Free Software Foundation, Inc.
5155 Copying and distribution of this file, with or without modification,
5156 are permitted in any medium without royalty provided the copyright
5157 notice and this notice are preserved.