1 2019-12-03 Marek Polacek <polacek@redhat.com>
3 PR c++/91363 - P0960R3: Parenthesized initialization of aggregates.
4 * call.c (build_new_method_call_1): Handle parenthesized initialization
5 of aggregates by building up a CONSTRUCTOR.
6 (extend_ref_init_temps): Do nothing for CONSTRUCTOR_IS_PAREN_INIT.
7 * cp-tree.h (CONSTRUCTOR_IS_PAREN_INIT, LOOKUP_AGGREGATE_PAREN_INIT):
9 * decl.c (grok_reference_init): Handle aggregate initialization from
10 a parenthesized list of values.
11 (reshape_init): Do nothing for CONSTRUCTOR_IS_PAREN_INIT.
12 (check_initializer): Handle initialization of an array from a
13 parenthesized list of values. Use NULL_TREE instead of NULL.
14 * tree.c (build_cplus_new): Handle BRACE_ENCLOSED_INITIALIZER_P.
15 * typeck2.c (digest_init_r): Set LOOKUP_AGGREGATE_PAREN_INIT if it
16 receives a CONSTRUCTOR with CONSTRUCTOR_IS_PAREN_INIT set. Allow
17 narrowing when LOOKUP_AGGREGATE_PAREN_INIT.
18 (massage_init_elt): Don't lose LOOKUP_AGGREGATE_PAREN_INIT when passing
19 flags to digest_init_r.
21 2019-12-03 Jakub Jelinek <jakub@redhat.com>
24 * typeck2.c (digest_nsdmi_init): For bitfields, use
25 DECL_BIT_FIELD_TYPE instead of TREE_TYPE.
27 2019-12-03 Jason Merrill <jason@redhat.com>
28 Jakub Jelinek <jakub@redhat.com>
31 * call.c (strip_standard_conversion): New function.
32 (build_new_op_1): Use it for user_conv_p.
33 (compare_ics): Likewise.
34 (source_type): Likewise.
36 2019-12-03 Jakub Jelinek <jakub@redhat.com>
39 * constexpr.c (cxx_bind_parameters_in_call): For virtual calls,
40 adjust the first argument to point to the derived object rather
43 2019-12-02 Jakub Jelinek <jakub@redhat.com>
46 * constexpr.c (cxx_eval_constant_expression) <case OBJ_TYPE_REF>: Use
47 STRIP_NOPS before checking for ADDR_EXPR.
49 2019-11-29 Jakub Jelinek <jakub@redhat.com>
52 * parser.c (cp_parser_omp_declare_reduction_exprs): If
53 processing_template_decl, wrap the combiner or initializer
55 * decl.c (start_preparsed_function): Don't start a lambda scope
56 for DECL_OMP_DECLARE_REDUCTION_P functions.
57 (finish_function): Don't finish a lambda scope for
58 DECL_OMP_DECLARE_REDUCTION_P functions, nor cp_fold_function
59 them nor cp_genericize them.
60 * mangle.c (decl_mangling_context): Look through
61 DECL_OMP_DECLARE_REDUCTION_P functions.
62 * semantics.c (expand_or_defer_fn_1): For DECL_OMP_DECLARE_REDUCTION_P
63 functions, use tentative linkage, don't keep their bodies with
64 -fkeep-inline-functions and return false at the end.
66 2019-11-28 Jakub Jelinek <jakub@redhat.com>
69 * decl2.c (mark_used): Don't call note_vague_linkage_fn for pure
70 virtual functions, even if they are declared inline.
72 2019-11-16 Jason Merrill <jason@redhat.com>
74 Implement P1814R0, CTAD for alias templates.
75 * pt.c (rewrite_tparm_list): Factor out of build_deduction_guide.
76 (maybe_aggr_guide): Check for copy-init here.
77 (alias_ctad_tweaks, deduction_guides_for): New.
78 (ctor_deduction_guides_for): Factor out of do_class_deduction.
79 (ctad_template_p): New.
80 * parser.c (cp_parser_simple_type_specifier): Use it.
81 * constraint.cc (append_constraint): New.
83 2019-11-16 Jason Merrill <jason@redhat.com>
85 * cxx-pretty-print.c (pp_cxx_unqualified_id): Handle alias
87 * pt.c (complex_alias_template_p): True if constraints.
88 (get_underlying_template, tsubst): Check alias constraints.
89 (push_template_decl_real): Set alias constraints here.
90 * parser.c (cp_parser_alias_declaration): Not here.
91 * constraint.cc (get_constraints): Take const_tree.
93 2019-11-12 Jason Merrill <jason@redhat.com>
95 PR c++/92206 - ICE with typedef to dependent alias.
96 * pt.c (dependent_alias_template_spec_p)
97 (alias_template_specialization_p): Add transparent_typedefs
99 (iterative_hash_template_arg, any_template_parm_r)
100 (primary_template_specialization_p, tsubst, dependent_type_p_r):
102 * decl.c (check_elaborated_type_specifier): Adjust.
103 * error.c (dump_template_bindings, dump_aggr_type): Adjust.
105 2019-11-27 Andrew Sutton <asutton@lock3software.com>
108 Defer evaluation of concept checks so that static assertions can
109 emit more detailed diagnostics.
110 * constexpr.c (cxx_eval_call_expression): Handle concept checks.
111 (cxx_eval_constant_expression): Diagnose misuse of function concepts
112 as template-id expressions. Follow the usual return path for results.
113 (cxx_eval_outermost_constant_expr): Avoid calling
114 cp_get_callee_fndecl_nofold for function concepts.
115 * constraint.cc (build_function_check): Fully type the concept check
116 so that we don't ICE in conversions.
117 * cp-gimplify.c (cp_genericize_r) [CALL_EXPR]: Handle concept checks.
118 [TEMPLATE_ID_EXPR] Likewise.
119 * cvt.c (convert_to_void): Always evaluate concept checks so we don't
120 accidentally ignore them. Substitution during satisfaction can make
121 a program ill-formed (example in g++.dg/cpp2a/concepts6.C).
122 * pt.c (tsubst_copy_and_build): [CALL_EXPR]: Don't evaluate concepts.
123 [TEMPLATE_ID_EXPR]: Likewise.
124 * semantics.c (finish_call_expr): Don't evaluate concepts.
125 (finish_id_expression_1): Likewise.
126 (finish_static_assert): Preserve the original condition so we can
127 diagnose concept errors when a check returns false.
129 2019-11-27 Andrew Sutton <asutton@lock3software.com>
132 Improve quality of diagnostics for subexpressions that need parens.
133 * parser.c (cp_parser_requires_clause_opt): Add a flag to indicate
134 when parsing a requires-clause before lambda parameters, and...
135 (cp_parser_lambda_declarator_opt): ... use that here ...
136 (cp_parser_type_parameter): ... and here ...
137 (cp_parser_late_return_type_opt): ... and here ...
138 (cp_parser_explicit_template_declaration): ... and here.
139 (cp_parser_diagnose_ungrouped_constraint_plain): Adjust the message
140 because this can apply to subexpressions that are not immediately
141 after a requires-clause.
142 (cp_parser_diagnose_ungrouped_constraint_rich): Likewise.
143 (primary_constraint_error): New.
144 (cp_parser_constraint_requires_parens): New.
145 (cp_parser_unary_constraint_requires_parens): New.
146 (cp_parser_constraint_primary_expression): Check for unary expressions
147 before parsing the primary expression. Also check for binary and
148 postfix operators after a successful parse of the primary expression.
149 Force a re-parse if the result would form a lower-precedence string.
150 (cp_parser_constraint_logical_and_expression): Propagate lambda flag;
151 move checks for ill-formed constraints into the constraint primary
153 (cp_parser_constraint_logical_or_expression): Likewise.
154 (cp_parser_requires_clause_expression): Propagate lambda flag.
156 2019-11-27 Andrew Sutton <asutton@lock3software.com>
159 * constraint.cc (satisfy_declaration_constraints): Push tinst levels
162 2019-11-27 Andrew Sutton <asutton@lock3software.com>
164 Diagnose certain constraint errors as hard errors, but otherwise treat
165 them the same as normal SFINAE-type errors. Also, generally clean up
166 the satisfaction functions.
168 * constexpr.c (cxx_eval_constant_expression): Use
169 evaluate_concept_check.
170 * constraint.cc (normalize_concept_definition): Accept a diagnostic
171 flag and only cache when not diagnosing errors.
172 (decl_satisfied_cache): Map to trees instead of bools.
173 (satisfy_atom): Guarantee a location for the errors, propagate complain
174 flags to force_rvalue, and emit errors for non-boolean constraints.
175 (get_normalized_constraints_and_args): New overloads. Factored out of
176 satisfy_constraint_expression and satisfy_declaration_constraints.
177 (satisfy_constraint_expression): Propagate diagnostic info to
179 (satisfy_declaration_constraints): New. Factored out of
180 constraints_satisfied_p.
181 (constraint_satisfaction_value): New. Calls
182 satisfy_constraint_expression or satisfy_declaration_constraints.
183 (constraints_satisfied_p): Call constraint_satisfaction_value.
184 (evaluate_concept_check): Don't take tsubst_falgs_t. Replay
185 satisfaction if an error is encountered.
186 (current_failed_constraint): Moved from pt.c.
187 (diagnose_constraints): Call constraint_satisfaction_value.
188 * cp-tree.h: Update declarations.
189 * pt.c (current_failed_constraint): Moved to constraint.cc.
190 * semantics.c (finish_id_expression_1): Remove a duplicate case.
192 2019-11-27 Jakub Jelinek <jakub@redhat.com>
195 * tree.c (replace_placeholders_r): Don't walk constructor elts with
198 2019-11-26 Jason Merrill <jason@redhat.com>
200 * pt.c (tsubst_copy_and_build) [TEMPLATE_ID_EXPR]: Remember the
201 location of a variable template-id.
202 * constexpr.c (cxx_eval_constant_expression): Get expr location
203 before stripping location wrappers.
204 (non_const_var_error): Take location argument.
206 2019-11-26 Paolo Carlini <paolo.carlini@oracle.com>
208 * typeck.c (cp_build_unary_op): Consistently use the accurate
209 location in seven additional diagnostic messages.
210 (cp_build_compound_expr): Use cp_expr_loc_or_input_loc in one place.
212 2019-11-26 Jakub Jelinek <jakub@redhat.com>
215 * parser.c (cp_parser_std_attribute): For unknown attributes,
216 skip balanced token seq instead of trying to parse
217 attribute-argument-clause as expression list. Formatting fix.
220 * class.c (enum_to_min_precision): New hash_map.
221 (enum_min_precision): New function.
222 (check_bitfield_decl): Use it.
224 2019-11-25 Paolo Carlini <paolo.carlini@oracle.com>
226 * typeck.c (cp_build_indirect_ref_1): Add location_t parameter
227 and use it in error messages.
228 (build_x_indirect_ref): Adjust call.
229 (build_indirect_ref): Likewise.
230 (cp_build_fold_indirect_ref): Likewise.
231 (cp_build_array_ref): Likewise.
232 * call.c (build_new_op_1): Likewise.
233 * semantics.c (finish_omp_clauses): Likewise.
234 (finish_omp_depobj): Likewise.
235 * typeck2.c (build_x_arrow): Likewise.
236 * cp-tree.h (cp_build_indirect_ref): Update declaration.
238 * call.c (build_new_op_1): Use location argument in warning_at.
240 * typeck.c (cp_build_modify_expr): Consistently use the
243 2019-11-23 Bernd Edlinger <bernd.edlinger@hotmail.de>
246 * name-lookup.c (check_local_shadow): Use can_convert_arg
247 instead of can_convert.
249 2019-11-22 Marek Polacek <polacek@redhat.com>
251 PR c++/88337 - P1327R1: Allow polymorphic typeid in constexpr.
252 * constexpr.c (potential_constant_expression_1): Allow a typeid
253 expression whose operand is of polymorphic type in constexpr in
255 * rtti.c (build_typeid): Remove obsolete FIXME comment.
257 2019-11-22 Jakub Jelinek <jakub@redhat.com>
260 * cp-objcp-common.c (identifier_global_tag): Define.
263 * init.c (nsdmi_inst): Change type to
264 decl_tree_cache_map * from tree_cache_map *.
265 * constraint.cc (decl_constraints): Likewise.
266 * decl.c (get_tuple_decomp_init): Likewise.
267 * pt.c (defarg_inst, explicit_specifier_map): Likewise.
268 (tsubst_default_argument, store_explicit_specifier): Use
269 decl_tree_cache_map::create_ggc rather than
270 tree_cache_map::create_ggc.
271 * cp-objcp-common.c (debug_type_map): Change type to
272 type_tree_cache_map * from tree_cache_map *.
274 2019-11-21 Marek Polacek <polacek@redhat.com>
276 PR c++/92450 - ICE with invalid nested name specifier.
277 * parser.c (cp_parser_member_declaration): Don't attempt to print
278 erroneous bit-field diagnostic if grokdeclarator returns
281 2019-11-21 Jakub Jelinek <jakub@redhat.com>
282 Jason Merrill <jason@redhat.com>
285 * parser.c (cp_parser_decl_specifier_seq): For concept or typedef
286 break early if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR.
287 For type specifiers, set CP_PARSER_FLAGS_NO_TYPE_DEFINITIONS
288 if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR is set.
290 2019-11-20 Paolo Carlini <paolo.carlini@oracle.com>
292 * typeck2.c (build_x_arrow): Early return if decay_conversion
293 returns error_mark_node.
295 2019-11-20 Jakub Jelinek <jakub@redhat.com>
298 * call.c (complain_about_no_candidates_for_method_call): If
299 conv->from is not a type, pass to complain_about_bad_argument
300 lvalue_type of conv->from.
302 2019-11-20 Paolo Carlini <paolo.carlini@oracle.com>
304 * cvt.c (ocp_convert): Use additional warning sentinel.
306 2019-11-19 Jakub Jelinek <jakub@redhat.com>
309 * constexpr.c (cxx_eval_outermost_constant_expr): If DECL_INITIAL
310 on object is erroneous, return t without trying to evaluate
313 2019-11-12 Jason Merrill <jason@redhat.com>
315 * call.c (same_fn_or_template): Change to cand_parms_match.
317 (print_z_candidate): Mark rewritten/reversed candidates.
318 (build_new_op_1): Warn about recursive call with reversed arguments.
320 2019-11-15 Andrew Sutton <asutton@lock3software.com>
323 * pt.c (get_underlying_template): Exit loop if the original type
324 of the alias is null.
326 2019-11-19 Andrew Sutton <asutton@lock3software.com>
329 * pt.c (maybe_new_partial_specialization): Apply access to newly
330 created partial specializations. Update comment style.
332 2019-11-19 Andrew Sutton <asutton@lock3software.com>
335 * pt.c (maybe_new_partial_specialization): Apply access to newly
336 created partial specializations. Update comment style.
338 2019-11-19 Andrew Sutton <asutton@lock3software.com>
341 Suppress diagnostics substituting into a requires-expression.
342 * pt.c (tsubst_copy_and_build): Perform the first substitution without
343 diagnostics and a second only if tsubst_requries_expr returns an error.
345 2019-11-19 Jakub Jelinek <jakub@redhat.com>
348 * semantics.c (handle_omp_for_class_iterator): Don't call
349 cp_fully_fold on cond.
351 2019-11-18 Paolo Carlini <paolo.carlini@oracle.com>
353 * typeck.c (cp_build_addr_expr_1): Use cp_expr_loc_or_input_loc
355 (cxx_sizeof_expr): Use it in one additional place.
356 (cxx_alignof_expr): Likewise.
357 (lvalue_or_else): Likewise.
359 2019-11-18 Marek Polacek <polacek@redhat.com>
361 PR c++/91962 - ICE with reference binding and qualification conversion.
362 * call.c (convert_like_real) <case ck_ref_bind>: Check need_temporary_p.
364 2019-11-17 Jakub Jelinek <jakub@redhat.com>
366 * method.c (lookup_comparison_result): Use %qD instead of %<%T::%D%>
368 (lookup_comparison_category): Use %qD instead of %<std::%D%> to print
371 2019-11-15 Paolo Carlini <paolo.carlini@oracle.com>
373 * typeck.c (cp_truthvalue_conversion): Add tsubst_flags_t parameter
374 and use it in calls; also pass the location_t of the expression to
375 cp_build_binary_op and c_common_truthvalue_conversion.
376 * rtti.c (build_dynamic_cast_1): Adjust call.
377 * cvt.c (ocp_convert): Likewise.
378 * cp-gimplify.c (cp_fold): Likewise.
379 * cp-tree.h (cp_truthvalue_conversion): Update declaration.
381 2019-11-14 Jason Merrill <jason@redhat.com>
383 Implement P1816R0, class template argument deduction for aggregates.
384 * pt.c (maybe_aggr_guide, collect_ctor_idx_types): New.
385 (is_spec_or_derived): Split out from do_class_deduction.
386 (build_deduction_guide): Handle aggregate guide.
387 * class.c (finish_struct): Set CLASSTYPE_NON_AGGREGATE in a
389 * cp-tree.h (CP_AGGREGATE_TYPE_P): An incomplete class is not an
392 2019-11-14 Richard Sandiford <richard.sandiford@arm.com>
394 * call.c (build_conditional_expr_1): Use truth_type_for instead
395 of build_same_sized_truth_vector_type.
396 * typeck.c (build_vec_cmp): Likewise.
398 2019-11-14 Jakub Jelinek <jakub@redhat.com>
400 * parser.c (cp_parser_omp_context_selector): Don't require score
401 argument to fit into shwi, just to be INTEGER_CST. Diagnose
403 * pt.c (tsubst_attribute): Likewise.
405 * parser.c (cp_parser_omp_context_selector): Rename
406 CTX_PROPERTY_IDLIST to CTX_PROPERTY_NAME_LIST, add CTX_PROPERTY_ID.
407 Use CTX_PROPERTY_ID for atomic_default_mem_order, only allow a single
408 identifier in that. For CTX_PROPERTY_NAME_LIST, allow identifiers
410 * pt.c (tsubst_attribute): Fix up STRING_CST handling if allow_string.
412 2019-11-13 Marek Polacek <polacek@redhat.com>
414 PR c++/89070 - bogus [[nodiscard]] warning in SFINAE.
415 * cvt.c (convert_to_void): Guard maybe_warn_nodiscard calls with
418 2019-11-13 Richard Sandiford <richard.sandiford@arm.com>
421 * cp-tree.h (STF_STRIP_DEPENDENT): New constant.
422 * tree.c (strip_typedefs): Add STF_STRIP_DEPENDENT to the flags
423 when calling strip_typedefs recursively on a DECL_ORIGINAL_TYPE.
424 Don't apply the fix for DR1558 in that case; allow aliases with
425 dependent template parameters to be stripped instead.
427 2019-11-12 Nathan Sidwell <nathan@acm.org>
429 * name-lookup.c (lookup_using_decl): New function, merged from ...
430 (do_class_using_decl): ... here. Call it. And ...
431 (finish_nonmember_using_decl): ... here. Call it.
433 2019-11-12 Martin Liska <mliska@suse.cz>
435 * name-lookup.c: Do not include params.h.
436 * typeck.c: Likewise.
438 2019-11-12 Martin Liska <mliska@suse.cz>
440 * name-lookup.c (namespace_hints::namespace_hints): Replace old
441 parameter syntax with the new one, include opts.h if needed. Use
442 SET_OPTION_IF_UNSET macro.
443 * typeck.c (comptypes): Likewise.
445 2019-11-12 Maciej W. Rozycki <macro@codesourcery.com>
446 Frederik Harwath <frederik@codesourcery.com>
449 * constexpr.c (potential_constant_expression_1): Handle
451 * parser.c (OACC_SERIAL_CLAUSE_MASK): New macro.
452 (cp_parser_oacc_kernels_parallel): Rename function to...
453 (cp_parser_oacc_compute): ... this. Handle PRAGMA_OACC_SERIAL.
454 (cp_parser_omp_construct): Update accordingly.
455 (cp_parser_pragma): Handle PRAGMA_OACC_SERIAL. Fix alphabetic
457 * pt.c (tsubst_expr): Handle OACC_SERIAL.
459 2019-11-11 Jason Merrill <jason@redhat.com>
461 Implement P1946R0, Allow defaulting comparisons by value.
462 * method.c (early_check_defaulted_comparison): Accept by-value,
463 reject mixed by-value and by-reference parms.
464 * decl.c (grokdeclarator): Set funcdef_flag for defaulted friend.
465 * decl2.c (grokfield): Don't SET_DECL_FRIEND_CONTEXT.
467 * typeck.c (cp_build_binary_op): Sorry about <=> on VECTOR_TYPE.
469 2019-11-11 Jakub Jelinek <jakub@redhat.com>
472 * decl.c (finish_function): Move ctype initialization before
473 DECL_DELETED_FN handling.
475 * semantics.c (finish_translation_unit): Diagnose declare target
476 without corresponding end declare target.
478 2019-11-10 Jason Merrill <jason@redhat.com>
480 Implement D1957R0, T* to bool should be considered narrowing.
481 * typeck2.c (check_narrowing): Treat pointer->bool as a narrowing
482 conversion with -std=c++2a.
484 2019-11-08 Marek Polacek <polacek@redhat.com>
486 PR c++/92215 - flawed diagnostic for bit-field with non-integral type.
487 * parser.c (cp_parser_member_declaration): Add a diagnostic for
488 bit-fields with non-integral types.
490 2019-11-08 Jakub Jelinek <jakub@redhat.com>
492 * init.c (build_vec_delete_1): Fix a comment typo - mist -> must.
494 2019-11-07 Jason Merrill <jason@redhat.com>
496 Implement D1959R0, remove weak_equality and strong_equality.
497 * method.c (enum comp_cat_tag, comp_cat_info): Remove *_equality.
498 (genericize_spaceship, common_comparison_type): Likewise.
499 * typeck.c (cp_build_binary_op): Move SPACESHIP_EXPR to be with the
500 relational operators, exclude other types no longer supported.
502 2019-11-06 Jason Merrill <jason@redhat.com>
504 Implement D1907R1 "structural type".
505 * tree.c (structural_type_p): New.
506 * pt.c (invalid_nontype_parm_type_p): Use it.
507 * class.c (build_base_field_1): Take binfo. Copy TREE_PRIVATE.
508 (build_base_field): Pass binfo.
510 PR c++/92150 - partial specialization with class NTTP.
511 * pt.c (unify): Handle VIEW_CONVERT_EXPR.
513 * pt.c (use_pack_expansion_extra_args_p): Still do substitution if
514 all packs are simple pack expansions.
515 (add_extra_args): Check that the extra args aren't dependent.
517 2019-11-06 Andrew Sutton <asutton@lock3software.com>
519 Use satisfaction with nested requirements.
520 * constraint.cc (build_parameter_mapping): Use
521 current_template_parms when the declaration is not available.
522 (norm_info::norm_info) Make explicit.
523 (normalize_constraint_expression): Factor into a separate overload
524 that takes arguments, and use that in the original function.
525 (tsubst_nested_requirement): Use satisfy_constraint instead of
526 trying to evaluate this as a constant expression.
527 (finish_nested_requirement): Keep the normalized constraint and the
528 original normalization arguments with the requirement.
529 (diagnose_nested_requirement): Use satisfy_constraint. Tentatively
530 implement more comprehensive diagnostics, but do not enable.
531 * parser.c (cp_parser_requires_expression): Relax requirement that
532 requires-expressions can live only inside templates.
533 * pt.c (any_template_parm_r): Look into type of PARM_DECL.
535 2019-11-06 Jason Merrill <jason@redhat.com>
537 C++20 NB CA378 - Remove constrained non-template functions.
538 * decl.c (grokfndecl): Reject constraints on non-templated function.
540 2019-11-06 Matthias Kretz <m.kretz@gsi.de>
542 * parser.c (cp_parser_operator): Parse operator?: as an
543 attempt to overload the conditional operator.
545 2019-11-05 Jason Merrill <jason@redhat.com>
547 Implement C++20 operator<=>.
548 * cp-tree.h (struct lang_decl_fn): Add maybe_deleted bitfield.
549 (DECL_MAYBE_DELETED): New.
550 (enum special_function_kind): Add sfk_comparison.
551 (LOOKUP_REWRITTEN, LOOKUP_REVERSED): New.
552 * call.c (struct z_candidate): Add rewritten and reversed methods.
553 (add_builtin_candidate): Handle SPACESHIP_EXPR.
554 (add_builtin_candidates): Likewise.
555 (add_candidates): Don't add a reversed candidate if the parms are
557 (add_operator_candidates): Split out from build_new_op_1. Handle
558 rewritten and reversed candidates.
559 (add_candidate): Swap conversions of reversed candidate.
560 (build_new_op_1): Swap them back. Build a second operation for
561 rewritten candidates.
562 (extract_call_expr): Handle rewritten calls.
563 (same_fn_or_template): New.
564 (joust): Handle rewritten and reversed candidates.
565 * class.c (add_implicitly_declared_members): Add implicit op==.
566 (classtype_has_op, classtype_has_defaulted_op): New.
567 * constexpr.c (cxx_eval_binary_expression): Handle SPACESHIP_EXPR.
568 (cxx_eval_constant_expression, potential_constant_expression_1):
570 * cp-gimplify.c (genericize_spaceship): New.
571 (cp_genericize_r): Use it.
572 * cp-objcp-common.c (cp_common_init_ts): Handle SPACESHIP_EXPR.
573 * decl.c (finish_function): Handle deleted function.
574 * decl2.c (grokfield): SET_DECL_FRIEND_CONTEXT on defaulted friend.
575 (mark_used): Check DECL_MAYBE_DELETED. Remove assumption that
576 defaulted functions are non-static members.
577 * error.c (dump_expr): Handle SPACESHIP_EXPR.
578 * method.c (type_has_trivial_fn): False for sfk_comparison.
579 (enum comp_cat_tag, struct comp_cat_info_t): New types.
580 (comp_cat_cache): New array variable.
581 (lookup_comparison_result, lookup_comparison_category)
582 (is_cat, cat_tag_for, spaceship_comp_cat)
583 (spaceship_type, genericize_spaceship)
584 (common_comparison_type, early_check_defaulted_comparison)
585 (comp_info, build_comparison_op): New.
586 (synthesize_method): Handle sfk_comparison. Handle deleted.
587 (get_defaulted_eh_spec, maybe_explain_implicit_delete)
588 (explain_implicit_non_constexpr, implicitly_declare_fn)
589 (defaulted_late_check, defaultable_fn_check): Handle sfk_comparison.
590 * name-lookup.c (get_std_name_hint): Add comparison categories.
591 * tree.c (special_function_p): Add sfk_comparison.
592 * typeck.c (cp_build_binary_op): Handle SPACESHIP_EXPR.
594 2019-11-05 Tim van Deurzen <tim@kompiler.org>
596 Add new tree code for the spaceship operator.
597 * cp-tree.def: Add new tree code.
598 * operators.def: New binary operator.
599 * parser.c: Add new token and tree code.
601 2019-09-15 Jason Merrill <jason@redhat.com>
603 * call.c (build_new_op_1): Don't apply any standard conversions to
604 the operands of a built-in operator. Don't suppress conversions in
606 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
608 2019-11-04 Jason Merrill <jason@redhat.com>
610 Use vec instead of raw array for built-in candidates.
611 * call.c (build_builtin_candidate): Take args in a vec.
612 (add_builtin_candidate, add_builtin_candidates): Likewise.
613 (build_conditional_expr_1, build_new_op_1): Adjust.
615 2019-11-04 Jason Merrill <jason@redhat.com>
617 * constexpr.c (explain_invalid_constexpr_fn): Show location of fn.
619 * pt.c (maybe_instantiate_noexcept): Only update clones if we
622 * typeck.c (contextual_conv_bool): New.
624 * name-lookup.c (lookup_qualified_name): Add wrapper overload taking
625 C string rather than identifier.
626 * parser.c (cp_parser_userdef_numeric_literal): Use it.
627 * rtti.c (emit_support_tinfos): Use it.
628 * cp-tree.h (ovl_op_identifier): Change to inline functions.
629 (build_x_binary_op): Add wrapper with fewer parms.
631 2019-11-05 Jason Merrill <jason@redhat.com>
633 * decl2.c (mark_used): Diagnose use of a function with unsatisfied
635 * typeck.c (cp_build_function_call_vec): Not here.
637 2019-11-05 Nathan Sidwell <nathan@acm.org>
640 * parser.c (cp_parser_error_1): Check EOF and UNKNOWN_LOCATION
641 when skipping over version control marker.
643 2019-11-05 Jakub Jelinek <jakub@redhat.com>
646 * constexpr.c (potential_constant_expression_1): Return true rather
647 than false for PREDICT_EXPR.
649 * decl.c (omp_declare_variant_finalize_one): Call
650 declare_simd_adjust_this not just on the context, but also on the
651 variant-id expression for methods. Don't call
652 cp_get_callee_fndecl_nofold, call cp_get_callee and only if it is
653 safe cp_get_fndecl_from_callee. Don't try to print as %qD
655 * pt.c (tsubst_attribute): Handle "omp declare variant base"
657 (tsubst_function_decl): Call omp_declare_variant_finalize
658 if there are any "omp declare variant base" attributes left.
660 2019-11-04 Kamlesh Kumar <kamleshbhalui@gmail.com>
662 PR c++/91979 - mangling nullptr expression
663 * mangle.c (write_template_arg_literal): Handle nullptr
666 2019-11-04 Jason Merrill <jason@redhat.com>
668 * typeck.c (check_return_expr): Avoid redundant error.
670 2019-11-02 Paolo Carlini <paolo.carlini@oracle.com>
672 * typeck.c (composite_pointer_type): Add a const op_location_t&
673 parameter and use it in diagnostics.
674 (composite_pointer_error): Likewise.
675 (composite_pointer_type_r): Add a const op_location_t&
676 parameter and forward it.
677 (cp_build_binary_op): Adjust calls.
678 (common_pointer_type): Likewise.
679 * call.c (add_builtin_candidate): Likewise.
680 (build_conditional_expr_1): Likewise.
681 * cp-tree.h (composite_pointer_type): Update declaration.
683 * typeck.c (cxx_sizeof_expr): Use cp_expr_loc_or_input_loc
685 (cxx_alignof_expr): Likewise.
686 (lvalue_or_else): Likewise.
688 2019-11-02 Jakub Jelinek <jakub@redhat.com>
690 * decl.c (omp_declare_variant_finalize_one): Use
691 omp_get_context_selector instead of c_omp_get_context_selector.
694 * parser.c (cp_parser_decl_specifier_seq): Don't parse attributes
695 if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR.
697 PR c++/88335 - Implement P1073R3: Immediate functions
698 * cp-tree.h (struct lang_decl_fn): Add immediate_fn_p bit.
699 (DECL_IMMEDIATE_FUNCTION_P, SET_DECL_IMMEDIATE_FUNCTION_P): Define.
700 (enum cp_decl_spec): Add ds_consteval.
701 (fold_non_dependent_expr): Add another tree argument defaulted to
703 * name-lookup.h (struct cp_binding_level): Add immediate_fn_ctx_p
705 * parser.c (cp_keyword_starts_decl_specifier_p): Adjust comments
706 for C++11 and C++20 specifiers. Handle RID_CONSTEVAL.
707 (CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR): Adjust comment.
708 (CP_PARSER_FLAGS_CONSTEVAL): New.
709 (cp_parser_skip_balanced_tokens): New forward declaration.
710 (cp_parser_lambda_declarator_opt): Handle ds_consteval. Set
711 current_binding_level->immediate_fn_ctx_p before parsing parameter
712 list if decl-specifier-seq contains consteval specifier.
713 (cp_parser_decl_specifier_seq): Handle RID_CONSTEVAL.
714 (cp_parser_explicit_instantiation): Diagnose explicit instantiation
715 with consteval specifier.
716 (cp_parser_init_declarator): For consteval or into flags
717 CP_PARSER_FLAGS_CONSTEVAL.
718 (cp_parser_direct_declarator): If CP_PARSER_FLAGS_CONSTEVAL, set
719 current_binding_level->immediate_fn_ctx_p in the sk_function_parms
721 (set_and_check_decl_spec_loc): Add consteval entry, formatting fix.
722 * call.c (build_addr_func): For direct calls to immediate functions
723 use build_address rather than decay_conversion.
724 (build_over_call): Evaluate immediate function invocations.
725 * error.c (dump_function_decl): Handle DECL_IMMEDIATE_FUNCTION_P.
726 * semantics.c (expand_or_defer_fn_1): Use tentative linkage and don't
727 call mark_needed for immediate functions.
728 * typeck.c (cxx_sizeof_or_alignof_expr): Likewise. Formatting fix.
729 (cp_build_addr_expr_1): Reject taking address of immediate function
730 outside of immediate function.
731 * decl.c (validate_constexpr_redeclaration): Diagnose consteval
732 vs. non-consteval or vice versa redeclaration. Use
733 SET_DECL_IMMEDIATE_FUNCTION_P if new_decl is immediate function.
734 (check_tag_decl): Use %qs with keyword string to simplify translation.
736 (start_decl): Adjust diagnostics for static or thread_local variables
737 in immediate functions.
738 (grokfndecl): Call sorry_at on virtual consteval. Use %qs with keyword
739 to string to simplify translation. Diagnose consteval main. Use
740 SET_DECL_IMMEDIATE_FUNCTION_P for consteval.
741 (grokdeclarator): Handle consteval. Use %qs with keyword strings to
742 simplify translation. Use separate ifs instead of chained else if
743 for invalid specifiers. For constinit clear constinit_p rather than
745 * constexpr.c (find_immediate_fndecl): New function.
746 (cxx_eval_outermost_constant_expr): Allow consteval calls returning
747 void. Diagnose returning address of immediate function from consteval
749 (fold_non_dependent_expr_template): Add OBJECT argument, pass it
750 through to cxx_eval_outermost_constant_expr.
751 (fold_non_dependent_expr): Add OBJECT argument, pass it through to
752 fold_non_dependent_expr_template.
753 (fold_non_dependent_init): Adjust fold_non_dependent_expr_template
755 * method.c (defaulted_late_check): Adjust diagnostics for consteval.
756 * lambda.c (maybe_add_lambda_conv_op): Copy over
757 DECL_DECLARED_CONSTEXPR_P and DECL_IMMEDIATE_FUNCTION_P bits from
758 callop to both artificial functions.
759 * init.c (build_value_init): Don't do further processing if
760 build_special_member_call returned a TREE_CONSTANT. Formatting fix.
762 PR c++/91369 - Implement P0784R7: constexpr new
763 * cp-tree.h (CALL_FROM_NEW_OR_DELETE_P): Define.
764 * init.c (build_new_1, build_vec_delete_1, build_delete): Set
765 CALL_FROM_NEW_OR_DELETE_P on the CALL_EXPR to allocator functions.
766 * constexpr.c (is_std_allocator_allocate): Only allow
767 global replaceable allocator functions if CALL_FROM_NEW_OR_DELETE_P
768 or in std::allocate<T>::{,de}allocate.
769 (potential_constant_expression_1): Likewise.
771 2019-11-01 Nathan Sidwell <nathan@acm.org>
773 * class.c (check_field_decls): Refactor.
775 2019-10-31 Jakub Jelinek <jakub@redhat.com>
778 * cp-tree.h (type_initializer_zero_p): Declare.
779 * decl.c (reshape_init_array_1): Formatting fix.
780 * tree.c (type_initializer_zero_p): New function. Moved from
781 ../tree.c, use next_initializable_field, formatting fix. Return
782 false for TYPE_NON_AGGREGATE_CLASS types.
784 2019-10-30 Jason Merrill <jason@redhat.com>
786 PR c++/92268 - hard error satisfying return-type-requirement
787 * constraint.cc (type_deducible_p): Check for substitution failure.
788 (diagnose_compound_requirement): Adjust diagnostic.
789 * pt.c (do_auto_deduction): Don't pass cargs to
790 constraints_satisfied_p.
792 2019-10-30 Jakub Jelinek <jakub@redhat.com>
794 PR c++/91369 - Implement P0784R7: constexpr new
795 * constexpr.c (cxx_replaceable_global_alloc_fn): Don't return true
797 (cxx_placement_new_fn, is_std_construct_at): New functions.
798 (cxx_eval_call_expression): Allow placement new in std::construct_at.
799 (potential_constant_expression_1): Likewise.
801 * typeck.c (decl_in_std_namespace_p): Return true also for decls
802 in inline namespaces inside of std namespace.
804 2019-10-30 Bernd Edlinger <bernd.edlinger@hotmail.de>
807 * name-lookup.c (check_local_shadow): Shadowing TYPE_DECLs
808 is always a -Wshadow=compatible-local warning, unless
811 2019-10-30 Jason Merrill <jason@redhat.com>
813 * cxx-pretty-print.c (get_fold_operator): Use OVL_OP_INFO.
815 2019-10-30 Marek Polacek <polacek@redhat.com>
817 PR c++/92134 - constinit malfunction in static data member.
818 * decl2.c (grokfield): Set LOOKUP_CONSTINIT.
820 2019-10-30 Jakub Jelinek <jakub@redhat.com>
822 * cp-tree.h (omp_declare_variant_finalize, build_local_temp): Declare.
823 * decl.c: Include omp-general.h.
824 (declare_simd_adjust_this): Add forward declaration.
825 (omp_declare_variant_finalize_one, omp_declare_variant_finalize): New
827 (cp_finish_decl, finish_function): Call omp_declare_variant_finalize.
828 * parser.c (cp_finish_omp_declare_variant): Adjust parsing of the
829 variant id-expression and propagate enough information to
830 omp_declare_variant_finalize_one in the attribute so that it can
832 * class.c (finish_struct): Call omp_declare_variant_finalize.
833 * tree.c (build_local_temp): No longer static, remove forward
836 2019-10-30 Paolo Carlini <paolo.carlini@oracle.com>
838 * typeck.c (cp_build_modify_expr): Prefer error + inform to
839 error + error in one place.
840 (get_delta_difference_1): Likewise.
841 (get_delta_difference): Likewise, in two places.
843 2019-10-29 Paolo Carlini <paolo.carlini@oracle.com>
845 * typeck.c (build_x_unary_op): Use the location_t argument in
848 2019-10-29 Marek Polacek <polacek@redhat.com>
850 PR c++/90998 - ICE with copy elision in init by ctor and -Wconversion.
851 * call.c (joust): Don't attempt to warn if ->second_conv is null.
853 2019-10-29 Jakub Jelinek <jakub@redhat.com>
856 * cp-gimplify.c (cp_gimplify_expr): If gimplify_to_rvalue changes the
857 function pointer type, re-add cast to the original one.
859 2019-10-29 Marek Polacek <polacek@redhat.com>
861 PR c++/91548 - fix detecting modifying const objects for ARRAY_REF.
862 * constexpr.c (cxx_eval_store_expression): Don't call
863 modifying_const_object_p for ARRAY_REF.
865 2019-10-29 Richard Sandiford <richard.sandiford@arm.com>
867 * cp-objcp-common.h (cxx_simulate_enum_decl): Declare.
868 (LANG_HOOKS_SIMULATE_ENUM_DECL): Define to the above.
869 * decl.c (cxx_simulate_enum_decl): New function.
871 2019-10-29 Richard Sandiford <richard.sandiford@arm.com>
873 * cp-tree.h (cxx_simulate_builtin_function_decl): Declare.
874 * decl.c (cxx_simulate_builtin_function_decl): New function.
875 * cp-objcp-common.h (LANG_HOOKS_SIMULATE_BUILTIN_FUNCTION_DECL):
878 2019-10-28 Martin Sebor <msebor@redhat.com>
881 * cp-objcp-common.c (names_builtin_p): Define new function.
883 2019-10-28 Nathan Sidwell <nathan@acm.org>
885 * parser.h (struct cp_token): Drop {ENUM,BOOL}_BITFIELD C-ism.
886 Add tree_check_p flag, use as nested union discriminator.
887 (struct cp_lexer): Add saved_type & saved_keyword fields.
888 * parser.c (eof_token): Delete.
889 (cp_lexer_new_main): Always init last_token to last token of
891 (cp_lexer_new_from_tokens): Overlay EOF token at end of range.
892 (cp_lexer_destroy): Restore token under the EOF.
893 (cp_lexer_previous_token_position): No check for eof_token here.
894 (cp_lexer_get_preprocessor_token): Clear tree_check_p.
895 (cp_lexer_peek_nth_token): Check CPP_EOF not eof_token.
896 (cp_lexer_consume_token): Assert not CPP_EOF, no check for
898 (cp_lexer_purge_token): Likewise.
899 (cp_lexer_purge_tokens_after): No check for EOF token.
900 (cp_parser_nested_name_specifier, cp_parser_decltype)
901 (cp_parser_template_id): Set tree_check_p.
903 2019-10-24 Jakub Jelinek <jakub@redhat.com>
905 * decl2.c (cplus_decl_attributes): Add "omp declare target block"
906 attribute in between declare target and end declare target
909 * call.c (convert_arg_to_ellipsis): Add missing space in string
912 2019-10-24 Marek Polacek <polacek@redhat.com>
914 * decl.c (reshape_init_r): Add missing space.
916 2019-10-24 Nathan Sidwell <nathan@acm.org>
918 * pt.c (reduce_template_parm_level): Attach the new TPI to the new
920 (convert_generic_types_to_packs): Pass the copied type to
921 reduce_templatE_parm_level.
923 2019-10-23 Nathan Sidwell <nathan@acm.org>
925 * cp-tree.c (CPTI_STD_IDENTIFIER): Delete.
926 (std_identifier): Delete.
927 (DECL_NAME_SPACE_STD_P): Compare against std_node.
928 * decl.c (initialize_predefined_identifiers): 'std' is not needed.
929 (cxx_init_decl_processing): Adjust creation of ::std. Use
930 {push,pop}_nested_namespace.
931 (cxx_builtin_function): Use {push,pop}_nested_namespace.
932 * except.c (init_exception_processing): Likewise.
933 * rtti.c (init_rtti_processing): Likewise.
935 2019-10-23 Jason Merrill <jason@redhat.com>
937 Implement P1286R2, Contra CWG1778
938 * method.c (defaulted_late_check): Don't check explicit
939 exception-specification on defaulted function.
940 (after_nsdmi_defaulted_late_checks): Remove.
941 * parser.h (struct cp_unparsed_functions_entry): Remove classes.
942 * parser.c (unparsed_classes): Remove.
943 (push_unparsed_function_queues, cp_parser_class_specifier_1):
946 2019-10-23 Jakub Jelinek <jakub@redhat.com>
948 * constexpr.c (cxx_eval_constant_expression) <case CLEANUP_STMT>:
949 Temporarily change input_location to CLEANUP_STMT location.
951 2019-10-22 Jakub Jelinek <jakub@redhat.com>
953 PR tree-optimization/85887
954 * decl.c (expand_static_init): Drop ECF_LEAF from __cxa_guard_acquire
955 and __cxa_guard_release.
957 2019-10-22 Marc Glisse <marc.glisse@inria.fr>
960 * constexpr.c (cxx_eval_builtin_function_call): Only set
961 force_folding_builtin_constant_p if manifestly_const_eval.
963 2019-10-22 Richard Sandiford <richard.sandiford@arm.com>
965 * cp-tree.h (STF_USER_VISIBLE): New constant.
966 (strip_typedefs, strip_typedefs_expr): Take a flags argument.
967 * tree.c (strip_typedefs, strip_typedefs_expr): Likewise,
968 updating mutual calls accordingly. When STF_USER_VISIBLE is true,
969 only look through typedefs if user_facing_original_type_p.
970 * error.c (dump_template_bindings, type_to_string): Pass
971 STF_USER_VISIBLE to strip_typedefs.
972 (dump_type): Likewise, unless pp_c_flag_gnu_v3 is set.
974 2019-10-21 Kamlesh Kumar <kamleshbhalui@gmail.com>
975 Jason Merrill <jason@redhat.com>
977 PR c++/83534 - typeinfo of noexcept function
978 * rtti.c (get_tinfo_decl_dynamic): Do not call
979 TYPE_MAIN_VARIANT for function.
980 (get_typeid): Likewise.
982 2019-10-21 Paolo Carlini <paolo.carlini@oracle.com>
984 * parser.c (cp_parser_class_head): Improve error recovery upon
985 extra qualification error.
987 2019-10-21 Jakub Jelinek <jakub@redhat.com>
990 * constexpr.c (cxx_eval_component_reference, cxx_eval_bit_field_ref):
991 Use STRIP_ANY_LOCATION_WRAPPER on CONSTRUCTOR elts.
993 2019-10-21 Marek Polacek <polacek@redhat.com>
995 PR c++/92062 - ODR-use ignored for static member of class template.
996 * pt.c (has_value_dependent_address): Strip location wrappers.
998 2019-10-21 Marek Polacek <polacek@redhat.com>
1000 PR c++/92106 - ICE with structured bindings and -Wreturn-local-addr.
1001 * typeck.c (maybe_warn_about_returning_address_of_local): Avoid
1002 recursing on null initializer and return false instead.
1004 2019-10-17 JeanHeyd Meneide <phdofthehouse@gmail.com>
1006 Implement p1301 [[nodiscard("should have a reason")]] + p1771 DR
1007 * tree.c (handle_nodiscard_attribute): Handle C++2a nodiscard
1009 (std_attribute_table) Increase nodiscard argument handling
1010 max_length from 0 to 1.
1011 * parser.c (cp_parser_check_std_attribute): Add requirement
1012 that nodiscard only be seen once in attribute-list.
1013 (cp_parser_std_attribute): Check that empty parenthesis lists are
1014 not specified for attributes that have max_length > 0 (e.g.
1016 * cvt.c (maybe_warn_nodiscard): Add nodiscard message to
1017 output, if applicable.
1018 (convert_to_void): Allow constructors to be nodiscard-able (P1771).
1020 2019-10-18 Nathan Sidwell <nathan@acm.org>
1022 * cp-tree.h (struct lang_type): Remove was_anonymous.
1023 (TYPE_WAS_UNNAMED): Implement by checking TYPE_DECL &
1025 * decl.c (name_unnamed_type): Don't set TYPE_WAS_UNNAMED.
1027 2019-10-17 Paolo Carlini <paolo.carlini@oracle.com>
1029 * decl.c (grokfndecl): Remove redundant use of in_system_header_at.
1030 (compute_array_index_type_loc): Likewise.
1031 (grokdeclarator): Likewise.
1032 * error.c (cp_printer): Likewise.
1033 * lambda.c (add_default_capture): Likewise.
1034 * parser.c (cp_parser_primary_expression): Likewise.
1035 (cp_parser_selection_statement): Likewise.
1036 (cp_parser_toplevel_declaration): Likewise.
1037 (cp_parser_enumerator_list): Likewise.
1038 (cp_parser_using_declaration): Likewise.
1039 (cp_parser_member_declaration): Likewise.
1040 (cp_parser_exception_specification_opt): Likewise.
1041 (cp_parser_std_attribute_spec): Likewise.
1042 * pt.c (do_decl_instantiation): Likewise.
1043 (do_type_instantiation): Likewise.
1044 * typeck.c (cp_build_unary_op): Likewise.
1046 * decl.c (check_tag_decl): Pass to in_system_header_at the same
1047 location used for the permerror.
1048 (grokdeclarator): Likewise.
1050 * decl.c (check_tag_decl): Use locations[ds_typedef] in error_at.
1052 2019-10-17 Jason Merrill <jason@redhat.com>
1054 * cp-gimplify.c (cp_gimplify_expr): Use get_initialized_tmp_var.
1055 (gimplify_to_rvalue): Remove default NULL argument.
1057 2019-10-17 Nathan Sidwell <nathan@acm.org>
1059 * decl.c (builtin_function_1): Merge into ...
1060 (cxx_builtin_function): ... here. Nadger the decl before maybe
1061 copying it. Set the context.
1062 (cxx_builtin_function_ext_scope): Push to top level, then call
1063 cxx_builtin_function.
1065 2019-10-16 Luis Machado <luis.machado@linaro.org>
1067 * cp-gimplify.c: Fix reference to non-existing tree-gimple.c file.
1069 2019-10-16 Jakub Jelinek <jakub@redhat.com>
1071 * decl.c (cxx_maybe_build_cleanup): When clearing location of cleanup,
1072 if cleanup is a nop, clear location of its operand too.
1074 2019-10-15 Andrew Sutton <asutton@lock3software.com>
1076 Finish moving constraint and logic functionality of out pt.c.
1077 Reimplement and re-enable subsumption caching.
1079 * config-lang.in (gtfiles): Add logic.cc.
1080 * constraint.cc (atomic_constraints_identical_p): Add assertions.
1081 (hash_atomic_constraint): Likewise.
1082 (constraints_equivalent_p): New.
1083 (inchash::add_constraint): New.
1084 (iterative_hash_constraint): New.
1085 (decl_constraints): Moved from pt.c.
1086 (get_constraints): Likewise.
1087 (set_constraints): Likewise.
1088 (remove_constraints): Likewise.
1089 * cp-tree.h (CONSTR_P): New.
1090 (init_constraint_processing): Remove.
1091 (constraints_equivalent_p, iterative_hash_constraint): Declare.
1092 * decl.c (cxx_init_decl_processing): Don't initialize constraints.
1093 * logic.cc (subsumption_entry): Moved from pt.c.
1094 (subsumption_hasher): Likewise.
1095 (subsumption_cache): Likewise.
1096 (lookup_subsumption): Likewise.
1097 (save_subsumption): Likewise.
1098 (subsumes_constraints_nonnull): Use subsumption cache.
1099 * pt.c: Move aforementioned declarations out of this file.
1100 (init_constraint_processing): Remove.
1102 2019-10-15 Andrew Sutton <asutton@lock3software.com>
1104 * parser.c (cp_parser_constructor_declarator_p): Pass an empty
1105 decl-specifier-seq to make sure we parse type constraints as part
1106 of a type-specifier.
1108 2019-10-15 Nathan Sidwell <nathan@acm.org>
1110 * class.c (build_clones): Break out of clone_function_decl. Just
1112 (clone_function_decl): Call build_clones, then maybe add them to
1115 * class.c (build_clone): Refactor to clarify recursiveness.
1117 2019-10-14 Jason Merrill <jason@redhat.com>
1119 PR c++/91930 - ICE with constrained inherited default ctor.
1120 * name-lookup.c (do_class_using_decl): Set TYPE_HAS_USER_CONSTRUCTOR
1121 for inherited constructor.
1123 2019-10-14 Paolo Carlini <paolo.carlini@oracle.com>
1125 * decl.c (check_tag_decl): Use DECL_SOURCE_LOCATION.
1127 2019-10-14 Jakub Jelinek <jakub@redhat.com>
1130 * semantics.c (handle_omp_array_sections_1): Temporarily disable
1131 -fstrong-eval-order also for in_reduction and task_reduction clauses.
1133 * parser.c (cp_parser_omp_all_clauses): Change bool NESTED_P argument
1134 into int NESTED, if it is 2, diagnose missing commas in between
1136 (cp_parser_omp_context_selector): Pass 2 as last argument to
1137 cp_parser_omp_all_clauses.
1139 2019-10-12 Jakub Jelinek <jakub@redhat.com>
1141 * parser.c (cp_parser_omp_context_selector): Improve error recovery.
1142 For simd properties, put them directly into TREE_VALUE.
1143 (cp_finish_omp_declare_variant): Add "omp declare variant base"
1144 attribute rather than "omp declare variant".
1146 2019-10-11 Marek Polacek <polacek@redhat.com>
1148 PR c++/92049 - extra error with -fchecking=2.
1149 * pt.c (build_non_dependent_expr): Call fold_non_dependent_expr
1152 2019-10-11 Paolo Carlini <paolo.carlini@oracle.com>
1154 * typeck.c (cp_build_binary_op): Do not handle RROTATE_EXPR and
1156 * constexpr.c (cxx_eval_constant_expression): Likewise.
1157 (potential_constant_expression_1): Likewise.
1158 * pt.c (tsubst_copy): Likewise.
1160 2019-10-11 Jason Merrill <jason@redhat.com>
1162 * decl2.c (mark_used): Don't clobber DECL_SOURCE_LOCATION on
1163 explicitly defaulted functions.
1164 * method.c (synthesize_method): Likewise.
1166 2019-10-11 Jakub Jelinek <jakub@redhat.com>
1169 * decl2.c (grok_array_decl): For -fstrong-eval-order, when array ref
1170 operands have been swapped and at least one operand has side-effects,
1171 revert the swapping before calling build_array_ref.
1172 * typeck.c (cp_build_array_ref): For non-ARRAY_TYPE array ref with
1173 side-effects on the index operand, if -fstrong-eval-order use
1174 save_expr around the array operand.
1175 (cp_build_binary_op): For shifts with side-effects in the second
1176 operand, wrap first operand into SAVE_EXPR and evaluate it before
1178 * semantics.c (handle_omp_array_sections_1): Temporarily disable
1179 flag_strong_eval_order during OMP_CLAUSE_REDUCTION array section
1181 * cp-gimplify.c (gimplify_to_rvalue): New function.
1182 (cp_gimplify_expr): Use it.
1184 2019-10-10 Marek Polacek <polacek@redhat.com>
1186 * typeck.c (comp_ptr_ttypes_real): Change the return type to bool.
1187 Use false instead of 0.
1189 2019-10-10 Jakub Jelinek <jakub@redhat.com>
1191 * parser.h (struct cp_omp_declare_simd_data): Add variant_p member.
1192 * parser.c (cp_ensure_no_omp_declare_simd): Handle both declare simd
1193 and declare variant.
1194 (cp_parser_oacc_all_clauses): Formatting fix.
1195 (cp_parser_omp_all_clauses): Add NESTED_P argument, if true, terminate
1196 processing on closing paren and don't skip to end of pragma line.
1197 (cp_parser_omp_declare_simd): Add VARIANT_P argument. Handle also
1199 (omp_construct_selectors, omp_device_selectors,
1200 omp_implementation_selectors, omp_user_selectors): New variables.
1201 (cp_parser_omp_context_selector,
1202 cp_parser_omp_context_selector_specification,
1203 cp_finish_omp_declare_variant): New functions.
1204 (cp_parser_late_parsing_omp_declare_simd): Handle also declare variant.
1205 (cp_parser_omp_declare): Handle declare variant.
1207 2019-10-09 Jason Merrill <jason@redhat.com>
1209 * cp-tree.h (template_info_decl_check): Check ENABLE_TREE_CHECKING.
1211 2019-10-09 Marek Polacek <polacek@redhat.com>
1213 PR c++/91364 - P0388R4: Permit conversions to arrays of unknown bound.
1214 PR c++/69531 - DR 1307: Differently bounded array parameters.
1215 PR c++/88128 - DR 330: Qual convs and pointers to arrays of pointers.
1216 * call.c (build_array_conv): Build ck_identity at the beginning
1218 (standard_conversion): Pass bounds_none to comp_ptr_ttypes_const.
1219 (maybe_warn_array_conv): New.
1220 (convert_like_real): Call it. Add an error message about converting
1221 from arrays of unknown bounds.
1222 (conv_get_original_expr): New.
1223 (nelts_initialized_by_list_init): New.
1224 (conv_binds_to_array_of_unknown_bound): New.
1225 (compare_ics): Implement list-initialization ranking based on
1226 array sizes, as specified in DR 1307 and P0388R.
1227 * cp-tree.h (comp_ptr_ttypes_const): Adjust declaration.
1228 (compare_bounds_t): New enum.
1229 * typeck.c (comp_array_types): New bool and compare_bounds_t
1230 parameters. Use them.
1231 (structural_comptypes): Adjust the call to comp_array_types.
1232 (similar_type_p): Handle ARRAY_TYPE.
1233 (build_const_cast_1): Pass bounds_none to comp_ptr_ttypes_const.
1234 (comp_ptr_ttypes_real): Don't check cv-quals of ARRAY_TYPEs. Use
1235 comp_array_types to compare array types. Look through arrays as per
1237 (comp_ptr_ttypes_const): Use comp_array_types to compare array types.
1238 Look through arrays as per DR 330.
1240 2019-10-09 Marek Polacek <polacek@redhat.com>
1242 PR c++/92032 - DR 1601: Promotion of enum with fixed underlying type.
1243 * call.c (standard_conversion): When converting an enumeration with
1244 a fixed underlying type to the underlying type, give it the cr_promotion
1246 (compare_ics): Implement a tiebreaker as per CWG 1601.
1248 2019-10-08 Andrew Sutton <asutton@lock3software.com>
1249 Jason Merrill <jason@redhat.com>
1251 Update the concepts implementation to conform to the C++20
1252 specification, improve compile times, and generally clean up
1254 * call.c (build_new_function_call): Don't evaluate concepts here.
1255 (constraint_failure): Don't record the template.
1256 (print_z_candidate): Don't extract the template.
1257 * class.c (add_method): When overloading, hide ineligible special
1259 (check_methods): Set TYPE_HAS_COMPLEX_* here.
1260 * constexpr.c (cxx_eval_constant_expression): Evaluate concepts.
1261 (maybe_initialize_fundef_copies_table): Remove.
1262 (get_fundef_copy): Use hash_map_safe_get_or_insert.
1263 (clear_cv_and_fold_caches): Clear the satisfaction cache.
1264 * constraint.cc (known_non_bool_p): New.
1265 (parsing_constraint_expression_sentinel): Renamed from
1266 expanding_constraint_sentinel.
1267 (check_constraint_operands): New.
1268 (check_constraint_atom): New.
1269 (finish_constraint_binary_op): New.
1270 (finish_constraint_or_expr): Likewise.
1271 (finish_constraint_and_expr): Likewise.
1272 (finish_constraint_primary_expr): Likewise.
1273 (combine_constraint_expressions): New.
1274 (finish_requires_expr): Add location parm.
1275 (get_concept_definition): Return the initializer of concept definitions.
1276 (get_template_head_requirements): New.
1277 (get_trailing_function_requirements): New.
1278 (deduce_constrained_parameter): Check if the identifier or template-id
1279 is a concept definition.
1280 (resolve_concept_definition_check): Removed.
1281 (resolve_variable_concept_check): Removed.
1282 (resolve_concept_check): New.
1283 (resolve_constraint_check): Handle concept definitions.
1284 converting arguments.
1285 (function_concept_check_p): Removed.
1286 (variable_concept_check_p): Removed.
1287 (unpack_concept_check): New.
1288 (get_concept_check_template): New.
1289 (build_call_check): Moved and renamed to build_function_check.
1290 (build_concept_check_arguments): make static.
1291 (build_function_check): Always do overload resolution
1292 in order to force conversion of template arguments (i.e., actually
1293 check that the use of a concept is valid).
1294 (build_standard_check): Renamed from build_real_concept_check.
1295 (build_real_concept_check): Build checks for C++2a concepts by
1296 (build_wildcard_concept_check): New.
1297 (build_concept_check): Use build_real_concept_check. New overload.
1298 (build_constraints): Save expressions, not normalized constraints.
1299 (build_concept_id): New. Pass tf_warning_or_error.
1300 (build_type_constraint): New.
1301 (finish_type_constraints): New.
1302 (associate_classtype_constraints): Also add constraints to union
1303 types. Note the original declaration in errors. Don't return
1304 error_mark_node in order to avoid an assertion later.
1305 (push_down_pack_expansion): Remove.
1306 (finish_shorthand_constraint): Make fold expressions, not naked
1307 parameter packs. Always apply the constraint to each template argument.
1308 (check_introduction_list): New. Fail if not enough
1309 names are introduced.
1310 (finish_template_introduction): Don't normalize constraints. Pass
1311 tsubst flags. Check for insufficient introductions.
1312 (placeholder_extract_concept_and_args): Handle the template-id case.
1313 Unpack function concept checks correctly.
1314 (tsubst_simple_requirement): Return errors if they occur. Don't
1315 process as a template.
1316 (tsubst_type_requirement): Likewise.
1317 (type_deducible_p): New. Wrap the input expression in parens for the
1318 purpose of deduction.
1319 (expression_convertible_t): New.
1320 (tsubst_compound_requirement): Use new deduction, conversion predicates.
1321 (tsubst_nested_requirement): Return errors if they occur. Don't
1322 process as a template. Instantiate and evaluate the nested requirement.
1323 (tsubst_valid_expression_requirement): New.
1324 (tsubst_simple_requirement): Use tsubst_valid_expression_requirement.
1325 (tsubst_compound_requirement): Use tsubst_valid_expression_requirement.
1326 (check_constaint_variables): New.
1327 (tsubst_constraint_variables): Check that type substitutions are valid.
1328 (tsubst_requires_expr): Likewise. Produce new requires-exprs during
1329 template substitution. Copy the previous local specialization stack,
1330 so references to non-local parameters can be found. Use cp_unevaluated.
1331 (tsubst_constraint): New. Don't evaluate concept checks.
1333 (norm_info): New. Used to build a normalization tree for concept check
1335 (debug_parameter_mapping): New.
1336 (debug_argument_list): New.
1337 (expand_concept): Removed.
1338 (normalize_logical_operation): Pass subst_info through call.
1339 (normalize_pack_expansion): Remove.
1340 (normalize_simple_requirement): Removed
1341 (normalize_type_requirement): Removed
1342 (normalize_compound_requirement): Removed
1343 (normalize_nested_requirement): Removed
1344 (normalize_requirement): Removed
1345 (normalize_requirements): Removed
1346 (normalize_requires_expression): Removed
1347 (normalize_variable_concept_check): Removed.
1348 (normalize_function_concept_check): Removed.
1349 (normalize_concept_check): Merged all normalize_*_check here.
1350 Substitute through written template arguments before normalizing the
1351 definition. Only substitute the innermost template arguments.
1352 (check_for_logical_overloads): Delete.
1353 (map_arguments): New. Associate template parameters with arguments.
1354 (build_parameter_mapping): New. Extract used parameters.
1355 (normalize_expression): Rewrite.
1356 (normalize_conjunction): Removed
1357 (normalize_disjunction): Removed
1358 (normalize_predicate_constraint): Removed
1359 (normalize_parameterized_constraint): Removed
1360 (normalized_map): New variable.
1361 (get_normalized_constraints): New entry point for normalization.
1362 Establishes a timer.
1363 (get_normalized_constraints_from_info): New.
1364 (get_normalized_constraints_from_decl): New. Turn on template processing
1365 prior to normalization. Handle inheriting ctors. Build the
1366 normalization arguments from the full set of template parameters of the
1367 most general template. This guarantees that we have no concrete arguments
1368 in the parameter mapping (e.g., from template members of class
1369 templates). Cache normalizations.
1370 (normalize_concept_definition): New. Cache normalizations.
1371 (normalize_template_requirements): New.
1372 (normalize_nontemplate_requirements): New.
1373 (normalize_constraint_expression): New.
1374 (tsubst_parameter_mapping): New.
1375 (get_mapped_args): New.
1376 (parameter_mapping_equivalent_p): New. Use template_args_equal.
1377 (atomic_constraints_identical_p): New.
1378 (hash_atomic_constraint): New.
1379 (satisfying_constraint_p): New. Guard against recursive evaluation of
1380 constraints during satisfaction.
1381 (satisfy_conjunction): New.
1382 (satisfy_disjunction): New.
1383 (sat_entry): New class for hashing satisfaction results.
1384 (sat_hasher): New hash traits.
1386 (get_satisfaction): New. Returns cached satisfaction result.
1387 (save_satisfaction): New. Caches a satisfaction result.
1388 (clear_satisfaction_cache): New.
1389 (satisfaction_cache): New. Helps manage satisfaction cache requests.
1390 (decl_satisfied_cache): New.
1391 (satisfy_atom): New.
1392 (satisfy_constraint_r): New.
1393 (satisfy_constraint): Use new satisfaction algorithm.
1394 (evaluate_concept_check): New.
1395 (evaluate_concept): Removed.
1396 (evaluate_function_concept): Removed.
1397 (evaluate_variable_concept): Removed.
1398 (satisfy_constraint_expression): New.
1399 (constraint_expression_satisfied_p): New.
1400 (constraints_satisfied_p): Use strip_inheriting_ctors. Use
1401 push_/pop_access_scope.
1402 (more_constrained): Normalize before calling out to subsumption. Allow
1403 classes as arguments.
1404 (strictly_subsumes): Allow non-templates as arguments. Accept a new
1406 (weakly_subsumes): New.
1407 (at_least_as_constrained): Removed.
1408 (diagnose_other_expression): Removed.
1409 (diagnose_predicate_constraint): Removed.
1410 (diagnose_pack_expansion): Removed.
1411 (diagnose_check_constraint): Removed.
1412 (diagnose_logical_constraint): Removed.
1413 (diagnose_expression_constraint): Removed.
1414 (diagnose_type_constraint): Removed.
1415 (diagnose_implicit_conversion_constraint): Removed.
1416 (diagnose_argument_deduction_constraint): Removed.
1417 (diagnose_exception_constraint): Removed.
1418 (diagnose_parameterized_constraint): Removed.
1419 (diagnose_argument_deduction_constraint): Removed.
1420 (diagnose_argument_deduction_constraint): Removed.
1421 (diagnose_argument_deduction_constraint): Removed.
1422 (diagnose_trait_expr): New.
1423 (diagnose_requires_expr): New.
1424 (diagnose_atomic_constraint): New.
1425 (diagnose_valid_expression) Stop wrongly diagnosing valid expressions.
1426 Don't substitute as if in template decls. This causes substitution
1427 to generate expressions that aren't suitable for use with the noexcept
1429 (diagnose_valid_type) Likewise.
1430 (diagnose_compound_requirement) Actually emit diagnostics for
1431 the causes of errors.Call force_paren_expr_uneval.
1432 (diagnose_declaration_constraints): Turn on template processing to
1433 suppress certain analyses.
1434 * cp-objcp-common.c (cp_common_init_ts): Make concepts typed.
1435 (cp_get_debug_type): Use hash_map_safe_*.
1436 * cp-tree.h: New function declarations for semantic actions, other
1437 facilities. Remove declaration no longer used or needed. Remove
1438 unused _CONSTR macros.
1439 (LANG_DECL_HAS_MIN): Add CONCEPT_DECL.
1440 (template_info_decl_check): Factor macro check into an inline function.
1441 (DECL_TEMPLATE_INFO): Use new check facility.
1442 (finish_concept_definition): New. Don't invalid concept declarations
1443 with invalid initializers.
1444 (find_template_parameters): New.
1445 (concept_definition_p): New.
1446 (concept_check_p): New.
1447 (variable_concept_check_p): New.
1448 (force_paren_expr_uneval): New.
1449 (ovl_iterator::using_p): A USING_DECL by itself was also
1450 introduced by a using-declaration.
1451 (struct tree_template_info): Use tree_base instead of
1452 tree_common. Add tmpl and args fields.
1453 (TI_TEMPLATE, TI_ARGS): Adjust.
1454 (DECLTYPE_FOR_INIT_CAPTURE): Remove.
1455 (CONSTR_CHECK, CONSTR_INFO, CONSTR_EXPR, CONSTR_CONTEXT): New.
1456 (ATOMIC_CONSTR_MAP, TRAIT_EXPR_LOCATION): New.
1457 (struct tree_trait_expr): Add locus field.
1458 (enum tsubst_flags): Add tf_norm as a hint to generate normalization
1459 context when diagnosing constraint failure.
1460 * cp-tree.def: Remove unused _CONSTR nodes and rename PRED_CONSTR
1462 (CONCEPT_DECL): New.
1463 * cxx-pretty-print.c: Remove constraint printing code.
1464 (pp_cxx_concept_definition): New.
1465 (pp_cxx_template_declaration): Print concept definitions.
1466 (pp_cxx_check_constraint): Update printing for concept definitions.
1467 (pp_cxx_nested_name_specifier): Fix a weird
1468 case where we're printing '::::' for concepts.
1469 (simple_type_specifier): Print requirements for placeholder types.
1470 (pp_cxx_constrained_type_spec): Print the associated requirements of
1472 (pp_cxx_compound_requirement): Add space before the '->'.
1473 (pp_cxx_parameter_mapping): Print the parameter mapping.
1474 (pp_cxx_atomic_constraint): Use the function above.
1475 * decl.c (redeclaration_error_message): New error for concepts.
1476 (grokdeclarator): Check for and disallow decltype(auto) in parameter
1478 (grokfndecl): Don't normalize constraints. Add check for constraints
1480 (grokvardecl): Don't normalize constraints.
1481 (grok_special_member_properties): Don't set TYPE_HAS_COMPLEX_*.
1482 (function_requirements_equivalent_p): New. Compare trailing
1483 requires clauses. Compare combined constraints in pre-C++20 mode.
1484 (decls_match): Compare trailing requires clauses. Compare template
1485 heads for function templates. Remove old constraint comparison.
1486 Simplify comparison of functions, function templates.
1487 (duplicate_function_template_decls): New. Refactor a nasty if
1488 condition into a single predicate.
1489 (require_deduced_type): Don't complain if we already complained about
1491 (finish_function): Perform auto deduction to ensure that constraints
1492 are checked even when functions contain no return statements. Only do
1493 auto deduction if we haven't previously seen any return statements.
1494 This prevents multiple diagnostics of the same error.
1495 (store_decomp_type): Remove.
1496 (cp_finish_decomp): Use hash_map_safe_put.
1497 * error.c: Remove constraint printing code.
1498 (dump_decl): Dump concept definitions. Handle wildcard declarations.
1499 (dump_template_decl): Likewise.
1500 (dump_type): Print associated requirements for placeholder
1502 (rebuild_concept_check): New.
1503 (maybe_print_single_constraint_context): New.
1504 (maybe_print_constraint_context): Recursively print nested contexts.
1505 * init.c (get_nsdmi): Use hash_map_safe_*.
1506 * lambda.c (maybe_add_lambda_conv_op): Bail if deduction failed.
1507 (add_capture): Copy parameter packs from init.
1508 (lambda_capture_field_type): Always use auto for init-capture.
1509 * logic.cc: Completely rewrite.
1510 (constraint_hash): New.
1511 (clause/ctor): Save atoms in the hash table.
1512 (replace): Save atoms during replacement.
1513 (insert): Save atoms during insertion.
1514 (contains): Only search the hash table for containment.
1515 (clause): Keep a hash of atomic constraints.
1516 (clause::clause): Explicitly copy the hash table when copying.
1517 (disjunction_p, conjunction_p, atomic_p, dnf_size, cnf_size): New.
1518 (diagnose_constraint_size): New.
1519 (subsumes_constraints_nonnull): Compare the sizes of normalized formula
1520 to determine the cheapest decomposition.
1521 * name-lookup.c (diagnose_name_conflict): Diagnose name issues with
1523 (matching_fn_p): Check constraints.
1524 (push_class_level_binding_1): Move overloaded functions case down,
1525 accept FUNCTION_DECL as target_decl.
1526 * parser.c (enum required_token): New required token for auto.
1527 (make_location): Add overload taking lexer as last parm.
1528 (cp_parser_required_error): Diagnose missing auto.
1529 (cp_parser_diagnose_ungrouped_constraint_plain): New.
1530 (cp_parser_diagnose_ungrouped_constraint_plain): New.
1531 (cp_parser_constraint_primary_expression): New. Tentatively parse the
1532 primary expression. If that fails tentatively parse a lower
1533 precedence expression in order to diagnose the error.
1534 (cp_parser_check_non_logical_constraint): New. Performs a trial
1535 parse of the right-hand-side of non-logical operators in order to
1536 generate good diagnostics.
1537 (cp_parser_constraint_logical_and_expression): New.
1538 (cp_parser_constraint_logical_or_expression): New.
1539 (cp_parser_requires_clause_expression): New.
1540 (cp_parser_requires_clause): Renamed to cp_parser_constraint_expression.
1541 (cp_parser_requires_clause_opt): Parse the requires-clause differently
1542 in -fconcepts and -std=c++2a modes.
1543 (cp_parser_requirement_list): Rename to cp_parser_requirement_seq.
1544 Rewrite so that semicolons are parsed
1545 along with requirements, not the sequence.
1546 (cp_parser_simple_requirement): Expect a semicolon at end.
1547 (cp_parser_compound_requirement): Expect a semicolon at end. Only
1548 allow trailing-return-type with -fconcepts-ts.
1549 (cp_parser_nested_requirement): Expect a semicolon at end. Parse
1550 constraint-expressions.
1551 (cp_parser_concept_definition): New. Don't fail parsing the concept
1552 definition if the initializer is ill-formed. Don't declare the concept
1553 before parsing the initializer.
1554 (cp_parser_constraint_expression): Declare earlier.
1555 (cp_parser_type_requirement): Current scope is not valid.
1556 (cp_parser_requires_expression): Commit to the tentative parse.
1557 (cp_parser_decl_specifier_seq): Warn when concept appears to be used
1558 as a decl-specifier.
1559 (cp_parser_template_declaration_after_parameters): Parse concept
1561 (cp_parser_template_id): Don't try to resolve a concept template-id yet.
1562 (cp_parser_template_id_expr): Resolve it as a concept check.
1563 (cp_parser_decl_specifier_seq): Warn on 'concept bool'.
1564 (cp_parser_type_parameter): Combine expressions not
1566 (cp_parser_explicit_template_declaration): Combine expressions not
1568 (cp_parser_maybe_concept_name): Removed.
1569 (cp_parser_simple_type_specifier): Handle an error condition of
1570 a bad constrained type specifier. Expect auto or decltype after
1571 a concept name. Also handle the case where we have a template-id
1573 (cp_parser_template_introduction): Diagnose errors on invalid
1574 introductions. Give up if it doesn't start with a concept name.
1575 Pedwarn if not -fconcepts-ts.
1576 (synthesize_implicit_template_parm): Don't do consistent binding.
1577 Use a new flag for constrained parameters. Combine expressions,
1578 not constraints. Fail if we get a placeholder in block scope.
1579 Placeholders that do not constrain types are not allowed in parameter
1580 declarations, so don't handle them.
1581 (cp_parser_placeholder_type_specifier): New. Implement parsing of
1582 placeholder type specifiers following a concept name or partial
1583 concept check. Disallow decltype(auto) parameters.
1584 (cp_parser_nested_name_specifier_opt): If the token is already
1585 CPP_NESTED_NAME_SPECIFIER, leave it alone.
1586 (cp_parser_id_expression, cp_parser_unqualified_id): Call
1587 cp_parser_template_id_expr.
1588 (cp_parser_placeholder_type_specifier): Add tentative parm. Don't
1589 expect a WILDCARD_DECL.
1590 (cp_parser_trait_expr): Pass trait_loc down.
1591 (cp_parser_postfix_expression): Do set location of dependent member
1593 * pt.c (finish_concept_definition): New.
1594 (push_template_decl_real): Handle concept definitions.
1595 (start_concept_definition): Let push_template_decl_real handle the
1596 creation of the template.
1597 (get_constraints): Return null if the table hasn't been initialized.
1598 (tsubst_copy_and_build): Build template-id expressions for concept
1600 [TRAIT_EXPR]: Pass trait_loc down.
1601 (lookup_template_class_1): Add the template name to the constraint
1603 (lookup_and_finish_template_variable): Build concept checks
1604 with the correct arguments.
1605 (tsubst_function_decl): Don't substitute through constraints.
1606 Always associate constraints with functions.
1607 (template_parm_level_and_index): Make non-static.
1608 (for_each_template_parm_r): Handle requires expressions.
1609 (keep_template_parm): New.
1610 (find_template_parameters): New.
1611 (more_specialized_fn): Change how winners and losers are chosen.
1612 (make_constrained_auto): Don't normalize constraints.
1613 (template_parameters_equivalent_p): New. Compare template
1614 parameters. Add a comparison for implicitly vs. explicitly declared
1616 (template_parameter_lists_equivalent_p): New. Compare template
1618 (template_requirements_equivalent_p): New.
1619 (template_heads_equivalent_p): New. Compare template heads.
1620 (template_parameter_constraints_equivalent_p): New.
1621 (is_compatible_template_arg): Use weakly_subsumes.
1622 (maybe_new_partial_specialization): Use new constraint comparison
1623 for finding specializations.
1624 (process_partial_specialization): Pass main template as argument.
1625 (more_specialized_partial_spec): Don't immediately return when
1627 (make_constrained_auto): Handle concept definitions.
1628 (do_auto_deduction): Update auto deduction for new concept model.
1629 Extract the function concept correctly; rename constr to check to
1630 reflect the kind of node.
1631 (tsubst): Adjust wildcard argument during substitution.
1632 [DECLTYPE_TYPE]: Remove init-capture handling.
1633 (tsubst_copy_and_build): Build concept checks, not template ids.
1634 Defer checks of function concepts. Handle concepts before variable
1635 templates. Handle calls to function concepts explicitly.
1636 (coerce_template_parms): Use concept_definition_p. Handle a deduction
1637 error where a potentially empty pack can be supplied after the last
1638 parameter of a concept.
1639 (finish_template_variable): Don't process concepts here.
1640 (instantiation_dependent_r): Use concept_check_p.
1641 (tsubst_template_args): Make non-static.
1642 (make_constrained_placeholder_type): New. Refactored from
1643 make_constrained_auto.
1644 (make_constrained_auto) Use make_constrained_placeholder_type.
1645 (make_constrained_decltype_auto) New.
1646 (tsubst_function_parms): New.
1647 (value_dependent_expression_p) [TEMPLATE_ID_EXPR]: Use
1648 concept_definition_p.
1649 (push_access_scope, pop_access_scope): No longer static.
1650 (tsubst_template_parm): Substitute TEMPLATE_PARM_CONSTRAINTS.
1651 (tsubst_friend_function): Use tsubst_constraint. Use generic_targs_for.
1652 (get_underlying_template) Use generic_targs_for.
1653 (uses_parameter_packs): Return tree.
1654 (gen_elem_of_pack_expansion_instantiation): Don't push
1655 local_specialization_stack.
1656 (prepend_one_capture): New.
1657 (tsubst_lambda_expr): Use prepend_one_capture. Don't touch
1658 local_specializations.
1659 (template_parms_level_to_args): No longer static.
1660 (add_outermost_template_args): Likewise.
1661 (find_template_parameter_info): New. Provide context for finding
1662 template parameters.
1663 (keep_template_parm): Don't keep parameters declared at depth levels
1664 greater than those of the template parameters of the source declaration.
1665 Don't propagate cv-qualified types. Return 0, so we find all template
1666 parameters, not the just first.
1667 (any_template_parm_r): New. Handle cases that are mishandled by
1668 for_each_template_parm_r.
1669 (generic_targs_for): Factor out of coerce_template_args_for_ttp.
1670 (tsubst_argument_pack): Factor out of tsubst_template_args.
1671 (constraint_sat_entry): Removed.
1672 (constraint_sat_hasher): Removed.
1673 (concept_spec_entry): Removed.
1674 (concept_spec_hasher): Removed.
1675 (constraint_memos): Removed.
1676 (concept_memos): Removed.
1677 (lookup_constraint_satisfaction): Removed.
1678 (memoize_constraint_satisfaction): Removed.
1679 (lookup_concept_satisfaction): Removed.
1680 (memoize_concept_satisfaction): Removed.
1681 (concept_expansions): Removed.
1682 (get_concept_expansion): Removed.
1683 (save_concept_expansion): Removed.
1684 (init_constraint_processing): Remove initialization of non-existing
1686 (find_template_requirement): New. Search for the sub-requirement
1687 within the associated constraints.
1688 (convert_generic_types_to_packs): Also transform the associated
1689 constraint and update the current template requirements.
1690 (store_defaulted_ttp, lookup_defaulted_ttp): Remove.
1691 (add_defaults_to_ttp): Use hash_map_safe_*.
1692 * semantics.c (finish_call_expr): Diagnose calls to concepts.
1693 Handle concept checks explicitly.
1694 (finish_id_expression): Evaluate variable concepts as part of
1695 id-expression processing. Don't treat variable concepts as variables,
1696 and don't process function concepts as plain id-expressions.
1697 (force_paren_expr): Add even_uneval parm.
1698 (finish_trait_expr): Add location parm.
1699 * tree.c (special_memfn_p): New.
1700 (cp_expr_location): Handle TRAIT_EXPR.
1701 * typeck.c (check_return_expr): Actually use the diagnostic kind
1702 when performing return-type deduction.
1703 * typeck2.c (build_functional_cast): Don't rely on the location of
1706 2019-10-09 Paolo Carlini <paolo.carlini@oracle.com>
1708 * decl.c (grok_ctor_properties): Use DECL_SOURCE_LOCATION.
1709 * typeck.c (cp_build_binary_op): Use the op_location_t argument
1710 in many error messages.
1712 2019-10-08 Martin Sebor <msebor@redhat.com>
1715 * call.c (maybe_warn_class_memaccess): Handle arrays.
1717 2019-10-07 Paolo Carlini <paolo.carlini@oracle.com>
1719 * call.c (resolve_args): Use cp_expr_loc_or_input_loc in one place.
1720 * decl.c (grokdeclarator): Use id_loc in one place.
1721 * decl2.c (build_anon_union_vars): Use DECL_SOURCE_LOCATION.
1722 * parser.c (cp_parser_delete_expression): Fix the location of the
1723 returned expression.
1724 (cp_parser_throw_expression): Likewise.
1725 * pt.c (determine_specialization): Use DECL_SOURCE_LOCATION.
1727 2019-10-05 Jakub Jelinek <jakub@redhat.com>
1729 PR c++/91369 - Implement P0784R7: constexpr new
1730 * cp-tree.h (enum cp_tree_index): Add CPTI_HEAP_UNINIT_IDENTIFIER,
1731 CPTI_HEAP_IDENTIFIER and CPTI_HEAP_DELETED_IDENTIFIER.
1732 (heap_uninit_identifier, heap_identifier, heap_deleted_identifier):
1734 (type_has_constexpr_destructor, build_new_constexpr_heap_type,
1735 cxx_constant_dtor): Declare.
1736 * class.c (type_maybe_constexpr_default_constructor): Make static.
1737 (type_maybe_constexpr_destructor, type_has_constexpr_destructor): New
1739 (finalize_literal_type_property): For c++2a, don't clear
1740 CLASSTYPE_LITERAL_P for types without trivial destructors unless they
1741 have non-constexpr destructors.
1742 (explain_non_literal_class): For c++2a, complain about non-constexpr
1743 destructors rather than about non-trivial destructors.
1744 * constexpr.c: Include stor-layout.h.
1745 (struct constexpr_global_ctx): New type.
1746 (struct constexpr_ctx): Add global field, remove values and
1747 constexpr_ops_count.
1748 (cxx_replaceable_global_alloc_fn): New inline function.
1749 (cxx_eval_call_expression): For c++2a allow calls to replaceable
1750 global allocation functions, for new return address of a heap uninit
1751 var, for delete record its deletion. Change ctx->values->{get,put} to
1752 ctx->global->values.{get,put}.
1753 (non_const_var_error): Add auto_diagnostic_group sentinel. Emit
1754 special diagnostics for heap variables.
1755 (cxx_eval_store_expression): Change ctx->values->{get,put} to
1756 ctx->global->values.{get,put}.
1757 (cxx_eval_loop_expr): Initialize jump_target if NULL. Change
1758 new_ctx.values->remove to ctx->global->values.remove.
1759 (cxx_eval_constant_expression): Change *ctx->constexpr_ops_count
1760 to ctx->global->constexpr_ops_count. Change ctx->values->{get,put} to
1761 ctx->global->values.{get,put}.
1762 <case NOP_EXPR>: Formatting fix. On cast of replaceable global
1763 allocation function to some pointer type, adjust the type of
1764 the heap variable and change name from heap_uninit_identifier
1766 (find_heap_var_refs): New function.
1767 (cxx_eval_outermost_constant_expr): Add constexpr_dtor argument,
1768 handle evaluation of constexpr dtors and add tracking of heap
1769 variables. Use tf_no_cleanup for get_target_expr_with_sfinae.
1770 (cxx_constant_value): Adjust cxx_eval_outermost_constant_expr caller.
1771 (cxx_constant_dtor): New function.
1772 (maybe_constant_value, fold_non_dependent_expr_template,
1773 maybe_constant_init_1): Adjust cxx_eval_outermost_constant_expr
1775 (potential_constant_expression_1): Ignore clobbers. Allow
1776 COND_EXPR_IS_VEC_DELETE for c++2a.
1777 * decl.c (initialize_predefined_identifiers): Add heap identifiers.
1778 (decl_maybe_constant_destruction): New function.
1779 (cp_finish_decl): Don't clear TREE_READONLY for constexpr variables
1780 with non-trivial, but constexpr destructors.
1781 (register_dtor_fn): For constexpr variables with constexpr non-trivial
1782 destructors call cxx_maybe_build_cleanup instead of adding destructor
1784 (expand_static_init): For constexpr variables with constexpr
1785 non-trivial destructors call cxx_maybe_build_cleanup.
1786 (grokdeclarator): Allow constexpr destructors for c++2a. Formatting
1788 (cxx_maybe_build_cleanup): For constexpr variables with constexpr
1789 non-trivial destructors call cxx_constant_dtor instead of adding
1790 destructor calls at runtime.
1791 * init.c: Include stor-layout.h.
1792 (build_new_constexpr_heap_type, maybe_wrap_new_for_constexpr): New
1794 (build_new_1): For c++2a and new[], add cast around the alloc call
1795 to help constexpr evaluation figure out the type of the heap storage.
1796 (build_vec_delete_1): Set DECL_INITIAL of tbase and emit a DECL_EXPR
1797 for it instead of initializing an uninitialized variable.
1798 * method.c: Include intl.h.
1799 (SFK_CTOR_P, SFK_DTOR_P, SFK_ASSIGN_P, SFK_COPY_P, SFK_MOVE_P): Move
1800 definitions earlier.
1801 (process_subob_fn): Add sfk argument, adjust non-constexpr call
1802 diagnostics based on it.
1803 (walk_field_subobs): Formatting fixes. Adjust process_subob_fn caller.
1804 (synthesized_method_base_walk): Likewise.
1805 (synthesized_method_walk): Set *constexpr_p to true for dtors in c++2a.
1806 Fix up DR number in comment.
1807 (implicitly_declare_fn): Formatting fix.
1808 * typeck2.c (store_init_value): Don't call cp_fully_fold_init on
1809 initializers of automatic non-constexpr variables in constexpr
1812 2019-10-04 Jakub Jelinek <jakub@redhat.com>
1815 * constexpr.c (cxx_fold_indirect_ref_1): New function.
1816 (cxx_fold_indirect_ref): Use it.
1819 * cp-gimplify.c (cp_gimplify_expr) <case CALL_EXPR>: For
1820 -fstrong-eval-order ensure CALL_EXPR_FN side-effects are evaluated
1821 before any arguments. Additionally, ensure CALL_EXPR_FN that isn't
1822 invariant nor OBJ_TYPE_REF nor SSA_NAME is forced into a temporary.
1824 2019-10-03 Paolo Carlini <paolo.carlini@oracle.com>
1826 * init.c (build_new): Use cp_expr_loc_or_input_loc in two places.
1827 * name-lookup.c (do_pushdecl): Use DECL_SOURCE_LOCATION.
1828 (push_class_level_binding_1): Likewise.
1829 (set_decl_namespace): Likewise.
1831 2019-10-03 Jakub Jelinek <jakub@redhat.com>
1833 * constexpr.c (cxx_eval_constant_expression) <case CLEANUP_STMT>: If
1834 not skipping upon entry to body, run cleanup with the same *jump_target
1835 as it started to run the cleanup even if the body returns, breaks or
1837 (potential_constant_expression_1): Allow CLEANUP_STMT.
1839 * constexpr.c (cxx_eval_store_expression): Formatting fix. Handle
1840 const_object_being_modified with array type.
1842 2019-10-02 Jason Merrill <jason@redhat.com>
1844 * typeck2.c (store_init_value): Only clear_cv_and_fold_caches if the
1847 2019-09-30 Jason Merrill <jason@redhat.com>
1849 Use hash_map_safe_* functions.
1850 * constexpr.c (maybe_initialize_fundef_copies_table): Remove.
1851 (get_fundef_copy): Use hash_map_safe_get_or_insert.
1852 * cp-objcp-common.c (cp_get_debug_type): Use hash_map_safe_*.
1853 * decl.c (store_decomp_type): Remove.
1854 (cp_finish_decomp): Use hash_map_safe_put.
1855 * init.c (get_nsdmi): Use hash_map_safe_*.
1856 * pt.c (store_defaulted_ttp, lookup_defaulted_ttp): Remove.
1857 (add_defaults_to_ttp): Use hash_map_safe_*.
1859 2019-10-02 Richard Biener <rguenther@suse.de>
1862 * decl.c (build_ptrmemfunc_type): Mark pointer-to-member
1863 fat pointer structure members as DECL_NONADDRESSABLE_P.
1865 2019-09-28 Marek Polacek <polacek@redhat.com>
1867 PR c++/91889 - follow-up fix for DR 2352.
1868 * call.c (involves_qualification_conversion_p): New function.
1869 (direct_reference_binding): Build a ck_qual if the conversion
1870 would involve a qualification conversion.
1871 (convert_like_real): Strip the conversion created by the ck_qual
1872 in direct_reference_binding.
1874 PR c++/91921 - stray warning with -Woverloaded-virtual.
1875 * class.c (warn_hidden): Only emit the second part of
1876 -Woverloaded-virtual if the first part was issued. Use inform instead
1879 PR c++/91923 - failure-to-SFINAE with class type NTTP in C++17.
1880 * pt.c (invalid_nontype_parm_type_p): Only emit errors when
1883 2019-09-27 Jakub Jelinek <jakub@redhat.com>
1886 * parser.c (cp_parser_omp_var_list_no_open): Parse predefined
1888 * semantics.c (finish_omp_clauses): Allow predefined variables in
1889 shared and firstprivate clauses, even when they are predetermined
1891 * cp-gimplify.c (cxx_omp_predetermined_sharing_1): Return
1892 OMP_CLAUSE_DEFAULT_SHARED for predefined variables.
1894 2019-09-27 Jason Merrill <jason@redhat.com>
1896 * constexpr.c (cxx_fold_indirect_ref): Use similar_type_p.
1897 (cxx_eval_indirect_ref): Likewise. Improve error location.
1899 * cp-tree.h (class iloc_sentinel): New.
1900 * decl.c (grokdeclarator, finish_enum_value_list): Use it.
1901 * mangle.c (mangle_decl_string): Use it.
1902 * pt.c (perform_typedefs_access_check): Use it.
1904 2019-09-27 Richard Sandiford <richard.sandiford@arm.com>
1906 * cp-tree.h (build_cxx_call): Take the original function decl
1907 as an optional final parameter.
1908 (cp_build_function_call_vec): Likewise.
1909 * call.c (build_cxx_call): Likewise. Pass all built-in calls to
1910 check_builtin_function_arguments.
1911 * typeck.c (build_function_call_vec): Take the original function
1912 decl as an optional final parameter and pass it to
1913 cp_build_function_call_vec.
1914 (cp_build_function_call_vec): Take the original function
1915 decl as an optional final parameter and pass it to build_cxx_call.
1917 2019-09-25 Marek Polacek <polacek@redhat.com>
1919 PR c++/91877 - ICE with converting member of packed struct.
1920 * call.c (convert_like_real): Use similar_type_p in an assert.
1922 2019-09-25 Paolo Carlini <paolo.carlini@oracle.com>
1924 * name-lookup.c (check_extern_c_conflict): Use DECL_SOURCE_LOCATION.
1925 (check_local_shadow): Use it in three additional places.
1927 2019-09-24 Jason Merrill <jason@redhat.com>
1929 * parser.c (cp_parser_postfix_expression): Do set location of
1930 dependent member call.
1932 2019-09-24 Marek Polacek <polacek@redhat.com>
1934 PR c++/91868 - improve -Wshadow location.
1935 * name-lookup.c (check_local_shadow): Use DECL_SOURCE_LOCATION
1936 instead of input_location.
1938 PR c++/91845 - ICE with invalid pointer-to-member.
1939 * expr.c (mark_use): Use error_operand_p.
1940 * typeck2.c (build_m_component_ref): Check error_operand_p after
1941 calling mark_[lr]value_use.
1943 2019-09-23 Paolo Carlini <paolo.carlini@oracle.com>
1945 * pt.c (check_explicit_specialization): Use cp_expr_loc_or_input_loc.
1946 (process_partial_specialization): Likewise.
1947 (convert_nontype_argument_function): Likewise.
1948 (invalid_tparm_referent_p): Likewise.
1949 (convert_template_argument): Likewise.
1950 (check_valid_ptrmem_cst_expr): Tidy.
1952 2019-09-23 Jason Merrill <jason@redhat.com>
1954 PR c++/91809 - bit-field and ellipsis.
1955 * call.c (convert_arg_to_ellipsis): Don't call decay_conversion for
1956 arithmetic arguments.
1958 2019-09-23 Marek Polacek <polacek@redhat.com>
1960 PR c++/91844 - Implement CWG 2352, Similar types and reference binding.
1961 * call.c (reference_related_p): Use similar_type_p instead of
1963 (reference_compatible_p): Update implementation to match CWG 2352.
1964 * cp-tree.h (similar_type_p): Declare.
1965 * typeck.c (similar_type_p): New.
1967 2019-09-22 Marek Polacek <polacek@redhat.com>
1969 PR c++/91819 - ICE with operator++ and enum.
1970 * call.c (build_new_op_1): Set arg2_type.
1972 2019-09-17 Jason Merrill <jason@redhat.com>
1974 * parser.c (cp_parser_statement): Handle [[likely]] on
1977 2019-09-19 Jason Merrill <jason@redhat.com>
1980 * call.c (build_new_op_1): Don't apply any standard conversions to
1981 the operands of a built-in operator. Don't suppress conversions in
1983 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
1985 2019-09-16 Paolo Carlini <paolo.carlini@oracle.com>
1987 * decl.c (grokdeclarator): Use declspecs->locations and
1988 declarator->id_loc in a few error messages.
1989 * pt.c (finish_member_template_decl): Use DECL_SOURCE_LOCATION.
1990 (push_template_decl_real): Likewise.
1992 2019-09-15 Jason Merrill <jason@redhat.com>
1994 PR c++/30277 - int-width bit-field promotion.
1995 PR c++/33819 - long bit-field promotion.
1996 * typeck.c (cp_perform_integral_promotions): Handle large bit-fields
1997 properly. Handle 32-bit non-int bit-fields properly.
1998 (is_bitfield_expr_with_lowered_type): Don't look through NOP_EXPR.
2000 PR c++/82165 - enum bitfields and operator overloading.
2001 * call.c (build_new_op_1): Use unlowered_expr_type.
2003 * call.c (build_new_op_1): Don't apply any standard conversions to
2004 the operands of a built-in operator. Don't suppress conversions in
2006 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
2008 2019-09-15 Marek Polacek <polacek@redhat.com>
2010 PR c++/91740 - ICE with constexpr call and ?: in ARRAY_REF.
2011 * pt.c (build_non_dependent_expr): Call build_non_dependent_expr for
2014 2019-09-15 Nathan Sidwell <nathan@acm.org>
2016 * cp-tree.h (DECL_CLONED_FUNCTION_P): Reimplement using
2017 IDENTIFIER_CDTOR_P, correct documentation.
2018 (DECL_CLONED_FUNCTION): Directly access field.
2019 (decl_cloned_function_p): Delete.
2020 * class.c (decl_cloned_function_p): Delete.
2021 * pt.c (instantiate_template_1): Check DECL_CHAIN is a decl.
2023 2019-09-11 Nathan Sidwell <nathan@acm.org>
2025 * c-objcp-common.c (cp-objcp-common.c): Alphababetize and
2026 correctly mark all C++ nodes.
2027 * decl.c (cp_tree_node_structure): Alphabetize.
2029 2019-09-10 Marek Polacek <polacek@redhat.com>
2031 PR c++/91673 - ICE with noexcept in alias-declaration.
2032 * parser.c (CP_PARSER_FLAGS_DELAY_NOEXCEPT): New parser flag.
2033 (cp_parser_lambda_declarator_opt): Pass CP_PARSER_FLAGS_NONE to
2034 cp_parser_exception_specification_opt.
2035 (cp_parser_direct_declarator): Adjust a call to
2036 cp_parser_exception_specification_opt.
2037 (cp_parser_member_declaration): Pass CP_PARSER_FLAGS_DELAY_NOEXCEPT
2038 to cp_parser_declarator if not processing a friend or typedef
2040 (cp_parser_late_noexcept_specifier): Adjust a call to
2041 cp_parser_noexcept_specification_opt.
2042 (cp_parser_noexcept_specification_opt): New parameter for parser flags,
2043 drop the FRIEND_P parameter. Use the new parameter.
2044 (cp_parser_exception_specification_opt): Likewise.
2045 (cp_parser_transaction): Adjust a call to
2046 cp_parser_noexcept_specification_opt.
2047 (cp_parser_transaction_expression): Likewise.
2049 2019-09-10 Marek Polacek <polacek@redhat.com>
2051 PR c++/91705 - constexpr evaluation rejects ++/-- on floats.
2052 * constexpr.c (cxx_eval_increment_expression): Call fold_simple on
2055 2019-09-10 Paolo Carlini <paolo.carlini@oracle.com>
2057 * decl.c (has_designator_problem): Use cp_expr_loc_or_input_loc
2059 (build_enumerator): Likewise.
2060 (cp_finish_decl): Use DECL_SOURCE_LOCATION.
2061 (grokdeclarator): Use id_loc in two error_at; change errror
2062 message about constinit together constexpr to use two ranges.
2064 2019-09-09 Marek Polacek <polacek@redhat.com>
2066 PR c++/84374 - diagnose invalid uses of decltype(auto).
2067 * decl.c (grokdeclarator): Diagnose wrong usage of decltype(auto) in
2068 a function declaration.
2070 2019-09-06 Nathan Sidwell <nathan@acm.org>
2073 * cp-tree.h (IDENTIFIER_REPO_CHOSEN, DECL_REPO_AVAILABLE_P): Delete.
2074 (struct lang_decl_base): Remove repo_available_p.
2075 * decl.c (duplicate_decls): Don't copy DECL_REPO_AVAILABLE_P.
2077 (Reserve TREE_LANG_FLAG_3 for modules.
2078 * cp-tree.h (DECL_CONSTRUCTION_VTABLE_P): Delete.
2079 (DECL_NON_TRIVIALLY_INITIALIZED_P): Move to TREE_LANG_FLAG_6.
2080 * class.c (build_ctor_vtbl_group): Don't set
2081 DECL_CONSTRUCTION_VTABLE_P.
2082 * decl2.c (determine_visibility_from_class): Don't check
2083 DECL_CONSTRUCTION_VTABLE_P anymore.
2085 2019-09-06 Martin Liska <mliska@suse.cz>
2088 * Make-lang.in: Remove repo.o.
2089 * config-lang.in: Likewise.
2090 * cp-tree.h (init_repo): Remove declarations
2091 of repo-related functions.
2092 (repo_emit_p): Likewise.
2093 (repo_export_class_p): Likewise.
2094 (finish_repo): Likewise.
2095 * decl2.c (import_export_class): Always
2097 (mark_needed): Remove -frepo from comment.
2098 (import_export_decl): Similarly here.
2099 (c_parse_final_cleanups): Remove call of finish_repo.
2100 * lex.c (cxx_init): Remove call to init_repo.
2101 * optimize.c (can_alias_cdtor): Remove dead condition.
2102 * pt.c (push_template_decl_real): Update comment.
2103 (instantiate_decl): Remove dead code used for -frepo.
2106 2019-09-05 Marek Polacek <polacek@redhat.com>
2108 PR c++/91644 - ICE with constinit in function template.
2109 * decl.c (start_decl): Call retrofit_lang_decl for constinit variables.
2110 * pt.c (tsubst_expr): Pass LOOKUP_CONSTINIT down to cp_finish_decl for
2111 constinit variables.
2113 2019-09-05 Nathan Sidwell <nathan@acm.org>
2115 * cp-tree.h (DECL_VTABLE_OR_VTT_P): Forward to DECL_VIRTUAL_P.
2117 2019-09-04 Marek Polacek <polacek@redhat.com>
2119 * call.c (build_over_call): Remove -fdeduce-init-list implementation.
2120 * pt.c (unify): Likewise.
2122 2019-09-01 Marek Polacek <polacek@redhat.com>
2124 PR c++/91129 - wrong error with binary op in template argument.
2125 * typeck.c (warn_for_null_address): Use fold_for_warn instead of
2126 fold_non_dependent_expr.
2127 (cp_build_binary_op): Likewise.
2129 2019-08-30 Jason Merrill <jason@redhat.com>
2131 Add source location to TRAIT_EXPR.
2132 * cp-tree.h (TRAIT_EXPR_LOCATION): New.
2133 (struct tree_trait_expr): Add locus field.
2134 * parser.c (cp_parser_trait_expr): Pass trait_loc down.
2135 * pt.c (tsubst_copy_and_build) [TRAIT_EXPR]: Likewise.
2136 * semantics.c (finish_trait_expr): Add location parm.
2137 * tree.c (cp_expr_location): Handle TRAIT_EXPR.
2139 2019-08-29 Paolo Carlini <paolo.carlini@oracle.com>
2141 * decl.c (check_var_type): Add location_t parameter and use it.
2142 (grokdeclarator): Adjust call.
2143 * pt.c (tsubst_decl): Likewise.
2144 * cp-tree.h: Adjust declaration.
2146 2019-08-28 Marek Polacek <polacek@redhat.com>
2148 Implement P1152R4: Deprecating some uses of volatile.
2150 * cp-gimplify.c (cp_fold): Set TREE_THIS_VOLATILE.
2151 * decl.c (grokdeclarator): Warn about a volatile-qualified structured
2152 binding and return type.
2153 (grokparms): Warn about a volatile-qualified function parameter.
2154 * expr.c (mark_use) <case MODIFY_EXPR>: Emit a -Wvolatile warning.
2155 * typeck.c (cp_build_unary_op): Emit a -Wvolatile warning for pre and
2156 post ++/-- on a volatile operand.
2157 (genericize_compound_lvalue): Use a better location. Don't lose
2159 (cp_build_modify_expr): Emit a -Wvolatile warning for a compound
2160 assignment whose LHS is volatile-qualified. Build the assignment with
2161 a more precise location.
2163 2019-08-28 Marek Polacek <polacek@redhat.com>
2165 PR c++/91360 - Implement C++20 P1143R2: constinit.
2166 * cp-tree.h (TINFO_VAR_DECLARED_CONSTINIT): Define.
2167 (LOOKUP_CONSTINIT): Define.
2168 (enum cp_decl_spec): Add ds_constinit.
2169 * decl.c (check_tag_decl): Give an error for constinit in type
2171 (check_initializer): Also check LOOKUP_CONSTINIT.
2172 (cp_finish_decl): Add checking for a constinit declaration. Set
2173 TINFO_VAR_DECLARED_CONSTINIT.
2174 (grokdeclarator): Add checking for a declaration with the constinit
2176 * lex.c (init_reswords): Handle D_CXX20.
2177 * parser.c (cp_lexer_get_preprocessor_token): Pass a better location
2178 to warning_at. Warn about C++20 keywords.
2179 (cp_keyword_starts_decl_specifier_p): Handle RID_CONSTINIT.
2180 (cp_parser_diagnose_invalid_type_name): Add an inform about constinit.
2181 (cp_parser_decomposition_declaration): Maybe pass LOOKUP_CONSTINIT to
2183 (cp_parser_decl_specifier_seq): Handle RID_CONSTINIT.
2184 (cp_parser_init_declarator): Maybe pass LOOKUP_CONSTINIT to
2186 (set_and_check_decl_spec_loc): Add "constinit".
2187 * pt.c (tsubst_decl): Set TINFO_VAR_DECLARED_CONSTINIT.
2188 (instantiate_decl): Maybe pass LOOKUP_CONSTINIT to cp_finish_decl.
2189 * typeck2.c (store_init_value): If a constinit variable wasn't
2190 initialized using a constant initializer, give an error.
2192 2019-08-28 Nathan Sidwell <nathan@acm.org>
2195 * name-lookup.c (cp_emit_debug_info): Check for builtins during
2198 2019-08-27 Marek Polacek <polacek@redhat.com>
2200 PR c++/81676 - bogus -Wunused warnings in constexpr if.
2201 * semantics.c (maybe_mark_exp_read_r): New function.
2202 (finish_if_stmt): Call it on THEN_CLAUSE and ELSE_CLAUSE.
2204 PR c++/91428 - warn about std::is_constant_evaluated in if constexpr.
2205 * cp-tree.h (decl_in_std_namespace_p): Declare.
2206 * semantics.c (is_std_constant_evaluated_p): New.
2207 (finish_if_stmt_cond): Warn about "std::is_constant_evaluated ()" in
2209 * typeck.c (decl_in_std_namespace_p): No longer static.
2211 2019-08-26 Jason Merrill <jason@redhat.com>
2213 * decl.c (duplicate_decls): Always merge DECL_DECLARED_CONSTEXPR_P.
2215 2019-08-26 Marek Polacek <polacek@redhat.com>
2217 PR c++/91545 - ICE in constexpr store evaluation.
2218 * constexpr.c (cxx_eval_store_expression): Check FIELD_DECL instead
2221 2019-08-24 Nathan Sidwell <nathan@acm.org>
2223 * class.c (check_for_overrides): Conversion operators need
2226 2019-08-24 Paolo Carlini <paolo.carlini@oracle.com>
2228 * semantics.c (finish_switch_cond): Improve error message location.
2230 2019-08-23 Jason Merrill <jason@redhat.com>
2232 * decl2.c (decl_dependent_p): New.
2233 (mark_used): Check it instead of just processing_template_decl.
2235 2019-08-23 Jason Merrill <jason@redhat.com>
2237 * parser.c (cp_parser_nested_name_specifier_opt): Avoid redundant
2240 2019-08-23 Marek Polacek <polacek@redhat.com>
2242 PR c++/91521 - wrong error with operator->.
2243 * decl.c (grokdeclarator): Return error_mark_node for an invalid
2244 trailing return type.
2246 PR c++/79817 - attribute deprecated on namespace.
2247 * cp-tree.h (cp_warn_deprecated_use_scopes): Declare.
2248 * decl.c (grokdeclarator): Call cp_warn_deprecated_use_scopes.
2249 (type_is_deprecated): Likewise.
2250 * decl2.c (cp_warn_deprecated_use_scopes): New function.
2251 * name-lookup.c (handle_namespace_attrs): Handle attribute deprecated.
2252 * parser.c (cp_parser_namespace_alias_definition): Call
2253 cp_warn_deprecated_use_scopes.
2254 (cp_parser_using_declaration): Likewise.
2255 (cp_parser_using_directive): Likewise.
2256 * semantics.c (finish_id_expression_1): Likewise.
2258 2019-08-23 Nathan Sidwell <nathan@acm.org>
2260 * class.c (check_for_override): Checking IDENTIFIER_VIRTUAL_P is
2261 sufficient, reorder DECL_OVERRIDE_P check.
2263 2019-08-23 Iain Sandoe <iain@sandoe.co.uk>
2266 * parser.c (cp_parser_initial_pragma): Call c_common_no_more_pch ()
2267 after determining that the first token is not
2268 PRAGMA_GCC_PCH_PREPROCESS.
2270 2019-08-22 Marek Polacek <polacek@redhat.com>
2272 PR c++/91304 - prefix attributes ignored in condition.
2273 * parser.c (cp_parser_condition): Handle prefix attributes.
2275 2019-08-21 Richard Sandiford <richard.sandiford@arm.com>
2278 * decl.c (duplicate_decls): Call copy_attributes_to_builtin inside
2279 the BUILT_IN_NORMAL block rather than afterward.
2281 2019-08-19 Marek Polacek <polacek@redhat.com>
2283 PR c++/91264 - detect modifying const objects in constexpr.
2284 * constexpr.c (modifying_const_object_error): New function.
2285 (cxx_eval_call_expression): Set TREE_READONLY on a CONSTRUCTOR of
2286 a const-qualified object after it's been fully constructed.
2287 (modifying_const_object_p): New function.
2288 (cxx_eval_store_expression): Detect modifying a const object
2289 during constant expression evaluation.
2290 (cxx_eval_increment_expression): Use a better location when building
2292 (cxx_eval_constant_expression) <case DECL_EXPR>: Mark a constant
2293 object's constructor TREE_READONLY.
2295 2019-08-15 Jason Merrill <jason@redhat.com>
2297 PR c++/90393 - ICE with thow in ?:
2299 PR c++/64372, DR 1560 - Gratuitous lvalue-to-rvalue conversion in ?:
2300 * tree.c (lvalue_kind): Handle throw in one arm.
2301 * typeck.c (rationalize_conditional_expr): Likewise.
2302 (cp_build_modify_expr): Likewise.
2304 2019-08-14 Jason Merrill <jason@redhat.com>
2306 Implement P0848R3, Conditionally Trivial Special Member Functions.
2307 * tree.c (special_memfn_p): New.
2308 * class.c (add_method): When overloading, hide ineligible special
2310 (check_methods): Set TYPE_HAS_COMPLEX_* here.
2311 * decl.c (grok_special_member_properties): Not here.
2312 * name-lookup.c (push_class_level_binding_1): Move overloaded
2313 functions case down, accept FUNCTION_DECL as target_decl.
2315 2019-08-14 Jonathan Wakely <jwakely@redhat.com>
2318 * name-lookup.c (get_std_name_hint): Fix min_dialect field for
2319 complex_literals and make_unique entries.
2321 2019-08-14 Jakub Jelinek <jakub@redhat.com>
2322 Marek Polacek <polacek@redhat.com>
2324 PR c++/91391 - bogus -Wcomma-subscript warning.
2325 * parser.c (cp_parser_postfix_open_square_expression): Don't warn about
2326 a deprecated comma here. Pass warn_comma_subscript down to
2327 cp_parser_expression.
2328 (cp_parser_expression): New bool parameter. Warn about uses of a comma
2329 operator within a subscripting expression.
2330 (cp_parser_skip_to_closing_square_bracket): Revert to pre-r274121 state.
2331 (cp_parser_skip_to_closing_square_bracket_1): Remove.
2333 2019-08-14 Jonathan Wakely <jwakely@redhat.com>
2335 * name-lookup.c (get_std_name_hint): Add more entries.
2337 2019-08-14 Paolo Carlini <paolo.carlini@oracle.com>
2339 * decl2.c (grok_array_decl): Use the location of the open square
2340 bracket in error message about invalid types.
2342 2019-08-14 Paolo Carlini <paolo.carlini@oracle.com>
2344 * decl.c (grokdeclarator): Check here for typedef a function
2345 definition or a member function definition.
2346 (start_function): Adjust.
2347 (grokmethod): Likewise.
2349 2019-08-13 Richard Sandiford <richard.sandiford@arm.com>
2352 * decl.c (duplicate_decls): Use copy_decl_built_in_function.
2353 * pt.c (declare_integer_pack): Use set_decl_built_in_function.
2355 2019-08-13 Marek Polacek <polacek@redhat.com>
2357 PR c++/90473 - wrong code with nullptr in default argument.
2358 * call.c (null_ptr_cst_p): Update quote from the standard.
2359 * decl.c (check_default_argument): Don't return nullptr when the arg
2362 2019-08-13 Marek Polacek <polacek@redhat.com>
2364 * cp-tree.h (DECL_MUTABLE_P): Use FIELD_DECL_CHECK.
2366 2019-08-10 Jakub Jelinek <jakub@redhat.com>
2368 * parser.c (cp_parser_omp_clause_name): Parse device_type.
2369 (cp_parser_omp_clause_device_type): New function.
2370 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
2371 (OMP_DECLARE_TARGET_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
2372 (cp_parser_omp_declare_target): Handle device_type clauses. Remove
2373 diagnostics for declare target with clauses nested in clause-less
2374 declare target declaration-definition-seq.
2375 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_DEVICE_TYPE.
2377 2019-08-09 Jakub Jelinek <jakub@redhat.com>
2379 * parser.c (check_no_duplicate_clause): Simplify using
2381 (cp_parser_omp_clause_if): Fix up printing of target {enter,exit} data
2382 directive name modifiers.
2385 * parser.c (cp_parser_omp_clause_dist_schedule): Comment out the
2386 check_no_duplicate_clause call, instead emit a warning for duplicate
2387 dist_schedule clauses.
2389 2019-08-08 Paolo Carlini <paolo.carlini@oracle.com>
2391 * decl.c (grokdeclarator): Use id_loc and EXPR_LOCATION in
2392 a few error messages.
2394 2019-08-08 Marek Polacek <polacek@redhat.com>
2396 PR c++/87519 - bogus warning with -Wsign-conversion.
2397 * typeck.c (cp_build_binary_op): Use same_type_p instead of comparing
2400 * constexpr.c (inline_asm_in_constexpr_error): New.
2401 (cxx_eval_constant_expression) <case ASM_EXPR>: Call it.
2402 (potential_constant_expression_1) <case ASM_EXPR>: Likewise.
2404 2019-08-08 Jakub Jelinek <jakub@redhat.com>
2406 * semantics.c (finish_omp_clauses): For C_ORT_OMP
2407 OMP_CLAUSE_USE_DEVICE_* clauses use oacc_reduction_head bitmap
2408 instead of generic_head to track duplicates.
2410 2019-08-07 Marek Polacek <polacek@redhat.com>
2412 PR c++/81429 - wrong parsing of constructor with C++11 attribute.
2413 * parser.c (cp_parser_constructor_declarator_p): Handle the scenario
2414 when a parameter declaration begins with [[attribute]].
2416 2019-08-07 Marek Polacek <polacek@redhat.com>
2418 PR c++/91346 - Implement P1668R1, allow unevaluated asm in constexpr.
2419 * constexpr.c (cxx_eval_constant_expression): Handle ASM_EXPR.
2420 (potential_constant_expression_1) <case ASM_EXPR>: Allow.
2421 * cp-tree.h (finish_asm_stmt): Adjust.
2422 * parser.c (cp_parser_asm_definition): Grab the locaion of "asm" and
2423 use it. Change an error to a pedwarn. Allow asm in C++2a, warn
2425 * pt.c (tsubst_expr): Pass a location down to finish_asm_stmt.
2426 * semantics.c (finish_asm_stmt): New location_t parameter. Use it.
2428 2019-08-07 Jakub Jelinek <jakub@redhat.com>
2430 * parser.c (cp_parser_omp_clause_name): Parse use_device_addr clause.
2431 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
2432 (OMP_TARGET_DATA_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
2433 (cp_parser_omp_target_data): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR
2434 like PRAGMA_OMP_CLAUSE_USE_DEVICE_PTR, adjust diagnostics about no
2435 map or use_device_* clauses.
2436 * semantics.c (finish_omp_clauses): For OMP_CLAUSE_USE_DEVICE_PTR
2437 in OpenMP, require pointer or reference to pointer type rather than
2438 pointer or array or reference to pointer or array type. Handle
2439 OMP_CLAUSE_USE_DEVICE_ADDR.
2440 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_USE_DEVICE_ADDR.
2442 2019-08-06 Jason Merrill <jason@redhat.com>
2444 PR c++/91378 - ICE with noexcept and auto return type.
2445 * pt.c (maybe_instantiate_noexcept): push_to_top_level.
2447 2019-08-06 Paolo Carlini <paolo.carlini@oracle.com>
2449 * decl.c (check_array_designated_initializer): Use
2450 cp_expr_loc_or_input_loc in one place.
2452 2019-08-06 Jakub Jelinek <jakub@redhat.com>
2454 * parser.c (cp_parser_omp_for_loop): For OMP_LOOP, ignore parallel
2455 clauses and predetermine iterator as lastprivate.
2456 * semantics.c (handle_omp_for_class_iterator): Use
2457 OMP_CLAUSE_LASTPRIVATE_LOOP_IV instead of
2458 OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV, set it for lastprivate also
2459 on OMP_LOOP construct. If a clause is missing for class iterator
2460 on OMP_LOOP, add firstprivate clause, and if there is private
2461 clause, turn it into firstprivate too.
2462 (finish_omp_for): Formatting fix. For OMP_LOOP, adjust
2463 OMP_CLAUSE_LASTPRIVATE_LOOP_IV clause CP_CLAUSE_INFO, so that it
2464 uses copy ctor instead of default ctor.
2465 * cp-gimplify.c (cp_gimplify_expr): Handle OMP_LOOP like
2467 (cp_fold_r): Likewise.
2468 (cp_genericize_r): Likewise.
2469 (cxx_omp_finish_clause): Also finish lastprivate clause with
2470 OMP_CLAUSE_LASTPRIVATE_LOOP_IV flag.
2471 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_BIND.
2472 (tsubst_omp_for_iterator): For OMP_LOOP, ignore parallel
2473 clauses and predetermine iterator as lastprivate.
2474 * constexpr.c (potential_constant_expression_1): Handle OMP_LOOP
2475 like OMP_DISTRIBUTE etc.
2477 2019-08-05 Marek Polacek <polacek@redhat.com>
2479 DR 2413 - typename in conversion-function-ids.
2480 * parser.c (cp_parser_conversion_type_id): Call
2481 cp_parser_type_specifier_seq with CP_PARSER_FLAGS_TYPENAME_OPTIONAL
2482 instead of CP_PARSER_FLAGS_NONE.
2484 2019-08-05 Paolo Carlini <paolo.carlini@oracle.com>
2486 * cp-tree.h (cp_expr_loc_or_input_loc): New.
2487 (cxx_incomplete_type_diagnostic): Use it.
2488 * call.c (build_converted_constant_expr_internal, convert_like_real,
2489 convert_arg_to_ellipsis, convert_for_arg_passing, build_over_call,
2490 build_cxx_call, perform_implicit_conversion_flags,
2491 initialize_reference): Likewise.
2492 * constexpr.c (cxx_eval_internal_function, cxx_eval_call_expression,
2493 eval_and_check_array_index, cxx_eval_store_expression,
2494 cxx_eval_statement_list, cxx_eval_loop_expr,
2495 cxx_eval_constant_expression, potential_constant_expression_1):
2497 * constraint.cc (check_for_logical_overloads,
2498 satisfy_predicate_constraint): Likewise.
2499 * cp-gimplify.c (cp_gimplify_expr): Likewise.
2500 * cvt.c (cp_convert_to_pointer, convert_to_reference,
2501 cp_convert_and_check, ocp_convert, maybe_warn_nodiscard): Likewise.
2502 * decl.c (pop_switch): Likewise.
2503 * decl2.c (delete_sanity): Likewise.
2504 * error.c (location_of): Likewise.
2505 * init.c (maybe_warn_list_ctor, build_aggr_init,
2506 warn_placement_new_too_small, build_new_1, build_vec_init): Likewise.
2507 * lex.c (unqualified_name_lookup_error): Likewise.
2508 * parser.c (cp_parser_initializer_list, cp_parser_omp_for_cond):
2510 * pt.c (check_for_bare_parameter_packs, check_valid_ptrmem_cst_expr,
2511 unify_arg_conversion, convert_nontype_argument,
2512 tsubst_copy_and_build, resolve_typename_type): Likewise.
2513 * semantics.c (maybe_convert_cond, finish_call_expr,
2514 cp_build_vec_convert): Likewise.
2515 * typeck.c (decay_conversion, rationalize_conditional_expr,
2516 cp_build_unary_op, build_x_compound_expr_from_list,
2517 maybe_warn_about_returning_address_of_local,
2518 maybe_warn_pessimizing_move): Likewise.
2519 * typeck2.c (check_narrowing, digest_init_r,
2520 process_init_constructor_array): Likewise.
2522 2019-08-05 Tom Honermann <tom@honermann.net>
2524 * parser.c (cp_parser_template_declaration_after_parameters): Enable
2525 class template argument deduction for non-type template parameters
2526 in literal operator templates.
2528 2019-08-05 Marek Polacek <polacek@redhat.com>
2530 PR c++/91338 - Implement P1161R3: Deprecate a[b,c].
2531 * parser.c (cp_parser_postfix_open_square_expression): Warn about uses
2532 of a comma operator within a subscripting expression.
2533 (cp_parser_skip_to_closing_square_bracket_1): New function, made out
2535 (cp_parser_skip_to_closing_square_bracket): ...this.
2537 2019-08-05 Jason Merrill <jason@redhat.com>
2539 * semantics.c (force_paren_expr): Preserve location.
2541 2019-08-02 Marek Polacek <polacek@redhat.com>
2543 PR c++/91230 - wrong error with __PRETTY_FUNCTION__ and generic lambda.
2544 * pt.c (value_dependent_expression_p): Consider __PRETTY_FUNCTION__
2545 inside a template function value-dependent.
2547 2019-08-02 Paolo Carlini <paolo.carlini@oracle.com>
2549 * tree.c (handle_nodiscard_attribute): Do not warn about nodiscard
2550 applied to a constructor.
2552 2019-08-02 Martin Liska <mliska@suse.cz>
2554 * decl.c (grok_op_properties):
2555 Mark DECL_SET_IS_OPERATOR_DELETE for user-provided delete operators.
2557 2019-08-01 Martin Sebor <msebor@redhat.com>
2560 * decl.c (reshape_init_array_1): Avoid truncating initializer
2561 lists containing string literals.
2563 2019-08-01 Marek Polacek <polacek@redhat.com>
2565 PR c++/90805 - detect narrowing in case values.
2566 * decl.c (case_conversion): Detect narrowing in case values.
2568 2019-07-31 Paolo Carlini <paolo.carlini@oracle.com>
2570 * decl2.c (delete_sanity): Improve diagnostic locations, use
2571 cp_expr_loc_or_loc in four places.
2573 2019-07-31 Jason Merrill <jason@redhat.com>
2575 PR c++/90538 - multiple expansions of capture packs
2576 * cp-tree.h (DECLTYPE_FOR_INIT_CAPTURE): Remove.
2577 * lambda.c (add_capture): Copy parameter packs from init.
2578 (lambda_capture_field_type): Always use auto for init-capture.
2579 * pt.c (uses_parameter_packs): Return tree.
2580 (tsubst) [DECLTYPE_TYPE]: Remove init-capture handling.
2581 (gen_elem_of_pack_expansion_instantiation): Don't push
2582 local_specialization_stack.
2583 (prepend_one_capture): New.
2584 (tsubst_lambda_expr): Use it. Don't touch local_specializations.
2585 (do_auto_deduction): Avoid redundant error.
2587 Fix copy_node of TEMPLATE_INFO.
2588 * cp-tree.h (struct tree_template_info): Use tree_base instead of
2589 tree_common. Add tmpl and args fields.
2590 (TI_TEMPLATE, TI_ARGS): Adjust.
2592 2019-07-30 Martin Liska <mliska@suse.cz>
2594 PR tree-optimization/91270
2595 * tree-ssa-dce.c (propagate_necessity): Mark 2nd argument
2596 of delete operator as needed.
2598 2019-07-25 Martin Liska <mliska@suse.cz>
2599 Dominik Infuhr <dominik.infuehr@theobroma-systems.com>
2602 * decl.c (cxx_init_decl_processing): Mark delete operators
2603 with DECL_SET_IS_OPERATOR_DELETE.
2605 2019-07-25 Martin Liska <mliska@suse.cz>
2607 * decl.c (duplicate_decls): Use new macros
2608 (e.g. DECL_SET_LAMBDA_FUNCTION and DECL_LAMBDA_FUNCTION_P).
2609 (cxx_init_decl_processing): Likewise.
2610 (grok_op_properties): Likewise.
2611 * parser.c (cp_parser_lambda_declarator_opt): Likewise.
2613 2019-07-24 Martin Sebor <msebor@redhat.com>
2616 * decl.c (finish_function): Use lang_mask.
2618 2019-07-20 Jason Merrill <jason@redhat.com>
2620 * cp-tree.h (ovl_iterator::using_p): A USING_DECL by itself was also
2621 introduced by a using-declaration.
2623 2019-07-20 Jason Merrill <jason@redhat.com>
2625 Reduce memory consumption for push/pop_access_scope.
2626 * name-lookup.c (leave_scope): Do add class levels other than
2627 previous_class_level to free_binding_level.
2628 (invalidate_class_lookup_cache): Move from class.c, add to
2630 * pt.c (saved_access_scope): Change from list to vec.
2632 2019-07-20 Jakub Jelinek <jakub@redhat.com>
2634 * cp-tree.h (OMP_FOR_GIMPLIFYING_P): Use OMP_LOOPING_CHECK
2635 instead of OMP_LOOP_CHECK.
2636 * parser.c (cp_parser_omp_clause_name): Handle bind clause.
2637 (cp_parser_omp_clause_bind): New function.
2638 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_BIND.
2639 (OMP_LOOP_CLAUSE_MASK): Define.
2640 (cp_parser_omp_loop): New function.
2641 (cp_parser_omp_parallel, cp_parser_omp_teams): Handle parsing of
2642 loop combined with parallel or teams.
2643 (cp_parser_omp_construct): Handle PRAGMA_OMP_LOOP.
2644 (cp_parser_pragma): Likewise.
2645 * pt.c (tsubst_expr): Handle OMP_LOOP.
2646 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_BIND.
2648 2019-07-19 Jason Merrill <jason@redhat.com>
2650 PR c++/90101 - dependent class non-type parameter.
2651 * pt.c (invalid_nontype_parm_type_p): Check for dependent class type.
2653 2019-07-18 Jason Merrill <jason@redhat.com>
2655 PR c++/90098 - partial specialization and class non-type parms.
2658 * call.c (build_converted_constant_expr_internal): Don't copy.
2659 * pt.c (process_partial_specialization): Allow VIEW_CONVERT_EXPR
2660 around class non-type parameter.
2661 (unify) [TEMPLATE_PARM_INDEX]: Ignore cv-quals.
2663 2019-07-16 Jason Merrill <jason@redhat.com>
2665 * parser.c (make_location): Add overload taking cp_lexer* as last
2668 * parser.c (cp_parser_simple_type_specifier): Separate tentative
2669 parses for optional type-spec and CTAD.
2671 * parser.c (cp_parser_nested_name_specifier_opt): If the token is
2672 already CPP_NESTED_NAME_SPECIFIER, leave it alone.
2674 2019-07-12 Jakub Jelinek <jakub@redhat.com>
2676 * parser.c (cp_parser_omp_clause_name): Handle order clause.
2677 (cp_parser_omp_clause_order): New function.
2678 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_ORDER.
2679 (OMP_SIMD_CLAUSE_MASK, OMP_FOR_CLAUSE_MASK): Add
2680 PRAGMA_OMP_CLAUSE_ORDER.
2681 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_ORDER.
2682 * pt.c (tsubst_omp_clauses): Likewise.
2684 2019-07-10 Paolo Carlini <paolo.carlini@oracle.com>
2686 * decl.c (get_type_quals,
2687 smallest_type_location (const cp_decl_specifier_seq*)): New.
2688 (check_tag_decl): Use smallest_type_location in error_at about
2689 multiple types in one declaration.
2690 (grokdeclarator): Use locations[ds_complex] in error_at about
2691 complex invalid; use locations[ds_storage_class] in error_at
2692 about static cdtor; use id_loc in error_at about flexible
2693 array member in union; use get_type_quals.
2695 2019-07-09 Martin Sebor <msebor@redhat.com>
2698 * cp-tree.h: Change class-key of PODs to struct and others to class.
2700 * semantics.c (finalize_nrv_r): Same.
2702 2019-07-09 Martin Sebor <msebor@redhat.com>
2705 * constexpr.c (cxx_eval_call_expression): Change class-key from class
2706 to struct and vice versa to match convention and avoid -Wclass-is-pod
2707 and -Wstruct-no-pod.
2708 * constraint.cc (get_concept_definition): Same.
2710 * cxx-pretty-print.h: Same.
2712 * logic.cc (term_list::replace): Same.
2713 * name-lookup.c (find_local_binding): Same.
2714 * pt.c (tsubst_binary_right_fold): Same.
2715 * search.c (field_accessor_p): Same.
2716 * semantics.c (expand_or_defer_fn): Same.
2718 2019-07-08 Jakub Jelinek <jakub@redhat.com>
2721 * decl2.c (cp_omp_mappable_type_1): Don't emit any note for
2722 error_mark_node type.
2724 2019-07-05 Jakub Jelinek <jakub@redhat.com>
2728 * call.c (build_new_method_call_1): Remove set but not used variable
2731 2019-07-05 Paolo Carlini <paolo.carlini@oracle.com>
2733 PR c++/67184 (again)
2735 * call.c (build_over_call): Devirtualize user-defined operators
2736 coming from a base too.
2737 (build_new_method_call_1): Do not devirtualize here.
2739 2019-07-04 Marek Polacek <polacek@redhat.com>
2742 PR c++/83374 - __is_standard_layout wrong for a class with repeated
2744 * class.c (check_bases): Set CLASSTYPE_NON_STD_LAYOUT for a class if
2745 CLASSTYPE_REPEATED_BASE_P is true.
2747 2019-07-04 Andrew Stubbs <ams@codesourcery.com>
2749 * cp-tree.h (cp_omp_emit_unmappable_type_notes): New prototype.
2750 * decl.c (cp_finish_decl): Call cp_omp_emit_unmappable_type_notes.
2751 * decl2.c (cp_omp_mappable_type): Move contents to ...
2752 (cp_omp_mappable_type_1): ... here and add note output.
2753 (cp_omp_emit_unmappable_type_notes): New function.
2754 * semantics.c (finish_omp_clauses): Call
2755 cp_omp_emit_unmappable_type_notes in four places.
2757 2019-07-03 Martin Liska <mliska@suse.cz>
2759 * call.c (build_new_op_1): Remove dead assignemts.
2760 * typeck.c (cp_build_binary_op): Likewise.
2762 2019-06-27 Jason Merrill <jason@redhat.com>
2764 PR c++/55442 - memory-hog with highly recursive constexpr.
2765 * constexpr.c (push_cx_call_context): Return depth.
2766 (cxx_eval_call_expression): Don't cache past constexpr_cache_depth.
2768 2019-06-27 Jan Hubicka <jh@suse.cz>
2770 * class.c (layout_class_type): Set TYPE_CXX_ODR_P for as-base
2773 2019-06-27 Martin Liska <mliska@suse.cz>
2775 * class.c (adjust_clone_args): Remove obviously
2777 (dump_class_hierarchy_r): Likewise.
2778 * decl.c (check_initializer): Likewise.
2779 * parser.c (cp_parser_lambda_expression): Likewise.
2780 * pt.c (unify_bound_ttp_args): Likewise.
2781 (convert_template_argument): Likewise.
2782 * rtti.c (build_headof): Likewise.
2783 * typeck.c (convert_for_initialization): Likewise.
2785 2019-06-25 Jason Merrill <jason@redhat.com>
2787 PR c++/70462 - unnecessary base ctor variant with final.
2788 * optimize.c (populate_clone_array): Skip base variant if
2790 (maybe_clone_body): We don't need an alias if we are only defining
2793 * class.c (resolves_to_fixed_type_p): Check CLASSTYPE_FINAL.
2795 2019-06-25 Jakub Jelinek <jakub@redhat.com>
2798 * constexpr.c (cxx_eval_array_reference): Don't look through VCE from
2799 vector type if lval.
2801 2019-06-25 Jozef Lawrynowicz <jozef.l@mittosystems.com>
2803 * lex.c (init_reswords): Create keyword for "__intN__" type.
2804 * cp-tree.h (cp_decl_specifier_seq): New bitfield "int_n_alt".
2805 * decl.c (grokdeclarator): Don't pedwarn about "__intN" ISO
2806 C incompatibility if alternate "__intN__" form is used.
2807 * parser.c (cp_parser_simple_type_specifier): Set
2808 decl_specs->int_n_alt if "__intN__" form is used.
2810 2019-06-24 Jan Hubicka <jh@suse.cz>
2812 * lex.c (cxx_make_type): Set TYPE_CXX_ODR_P.
2814 2019-06-24 Jason Merrill <jason@redhat.com>
2816 * class.c (layout_class_type): Don't use a separate
2817 CLASSTYPE_AS_BASE if it's the same size.
2819 2019-06-23 Marek Polacek <polacek@redhat.com>
2821 * call.c (convert_default_arg): Use DEFERRED_PARSE instead of
2823 * cp-objcp-common.c (cp_tree_size): Likewise. Use tree_deferred_parse
2824 instead of tree_default_arg.
2825 * cp-tree.def: Rename DEFAULT_ARG to DEFERRED_PARSE.
2826 * cp-tree.h: Rename DEFARG_TOKENS to DEFPARSE_TOKENS. Rename
2827 DEFARG_INSTANTIATIONS to DEFPARSE_INSTANTIATIONS. Rename
2828 tree_default_arg to tree_deferred_parse.
2829 (UNPARSED_NOEXCEPT_SPEC_P): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2830 (cp_tree_node_structure_enum): Rename TS_CP_DEFAULT_ARG to
2831 TS_CP_DEFERRED_PARSE.
2832 (lang_tree_node): Rename tree_default_arg to tree_deferred_parse.
2833 Rename default_arg to deferred_parse. Use TS_CP_DEFERRED_PARSE instead
2834 of TS_CP_DEFAULT_ARG.
2835 (defarg_location): Remove declaration.
2836 (defparse_location): Add declaration.
2837 * decl.c (grokfndecl): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2838 Call defparse_location instead of defarg_location.
2839 (check_default_argument): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2840 (cp_tree_node_structure): Likewise. Use TS_CP_DEFERRED_PARSE instead
2841 of TS_CP_DEFAULT_ARG.
2842 * decl2.c (grokfield): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2843 * error.c (dump_expr): Likewise.
2844 (location_of): Likewise.
2845 * init.c (get_nsdmi): Likewise.
2846 * parser.c (cp_parser_save_noexcept): Likewise. Use DEFPARSE_TOKENS
2847 instead of DEFARG_TOKENS.
2848 (cp_parser_late_noexcept_specifier): Likewise.
2849 (cp_parser_late_parse_one_default_arg): Use DEFPARSE_TOKENS instead
2851 (cp_parser_late_parsing_default_args): Use DEFERRED_PARSE instead of
2852 DEFAULT_ARG. Use DEFPARSE_INSTANTIATIONS instead of
2853 DEFARG_INSTANTIATIONS.
2854 (cp_parser_cache_defarg): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2855 Use DEFPARSE_TOKENS instead of DEFARG_TOKENS. Use
2856 DEFPARSE_INSTANTIATIONS instead of DEFARG_INSTANTIATIONS.
2857 (defparse_location): Renamed from defarg_location.
2858 * pt.c (tsubst_default_argument): Use DEFERRED_PARSE instead of
2860 (tsubst_arg_types): Likewise.
2861 (dependent_type_p_r): Likewise.
2862 * tree.c (cp_tree_equal): Likewise.
2863 (cp_walk_subtrees): Likewise.
2864 * typeck.c (convert_arguments): Likewise.
2866 2019-06-22 Marek Polacek <polacek@redhat.com>
2868 PR c++/86476 - noexcept-specifier is a complete-class context.
2870 * cp-tree.def (DEFAULT_ARG): Update commentary.
2871 * cp-tree.h (UNPARSED_NOEXCEPT_SPEC_P): New macro.
2872 (tree_default_arg): Use tree_base instead of tree_common.
2873 (do_push_parm_decls, maybe_check_overriding_exception_spec): Declare.
2874 * decl.c (do_push_parm_decls): New function, broken out of...
2875 (store_parm_decls): ...here. Call it.
2876 * except.c (nothrow_spec_p): Accept DEFAULT_ARG in the assert.
2877 * parser.c (cp_parser_noexcept_specification_opt,
2878 cp_parser_late_noexcept_specifier, noexcept_override_late_checks):
2880 (unparsed_noexcepts): New macro.
2881 (push_unparsed_function_queues): Update initializer.
2882 (cp_parser_direct_declarator): Pass FRIEND_P to
2883 cp_parser_exception_specification_opt.
2884 (inject_parm_decls): New.
2885 (pop_injected_parms): New.
2886 (cp_parser_class_specifier_1): Implement delayed parsing of
2887 noexcept-specifiers.
2888 (cp_parser_save_noexcept): New.
2889 (cp_parser_late_noexcept_specifier): New.
2890 (noexcept_override_late_checks): New.
2891 (cp_parser_noexcept_specification_opt): Add FRIEND_P parameter. Call
2892 cp_parser_save_noexcept instead of the normal processing if needed.
2893 (cp_parser_exception_specification_opt): Add FRIEND_P parameter and
2894 pass it to cp_parser_noexcept_specification_opt.
2895 (cp_parser_save_member_function_body): Fix comment.
2896 (cp_parser_save_default_args): Maybe save the noexcept-specifier to
2898 (cp_parser_transaction): Update call to
2899 cp_parser_noexcept_specification_opt.
2900 (cp_parser_transaction_expression): Likewise.
2901 * parser.h (cp_unparsed_functions_entry): Add new field to carry
2902 a noexcept-specifier.
2903 * pt.c (dependent_type_p_r): Handle unparsed noexcept expression.
2904 * search.c (maybe_check_overriding_exception_spec): New function, broken
2906 (check_final_overrider): ...here. Call
2907 maybe_check_overriding_exception_spec.
2908 * tree.c (canonical_eh_spec): Handle UNPARSED_NOEXCEPT_SPEC_P.
2909 (cp_tree_equal): Handle DEFAULT_ARG.
2911 PR c++/90881 - bogus -Wunused-value in unevaluated context.
2912 * cvt.c (convert_to_void): Don't emit unused warnings in
2913 an unevaluated context.
2915 2019-06-22 Paolo Carlini <paolo.carlini@oracle.com>
2917 * decl.c (grokdeclarator): Use id_loc, typespec_loc, and
2918 locations[ds_storage_class] in a few additional places.
2920 2019-06-21 Paolo Carlini <paolo.carlini@oracle.com>
2924 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2928 * call.c (build_over_call): Devirtualize when the final overrider
2929 comes from the base.
2931 2019-06-21 Marek Polacek <polacek@redhat.com>
2933 PR c++/61490 - qualified-id in friend function definition.
2934 * decl.c (grokdeclarator): Diagnose qualified-id in friend function
2935 definition. Improve location for diagnostics of friend functions.
2937 PR c++/60223 - ICE with T{} in non-deduced context.
2938 * pt.c (unify): Allow COMPOUND_LITERAL_P in a non-deduced context.
2940 PR c++/64235 - missing syntax error with invalid alignas.
2941 * parser.c (cp_parser_std_attribute_spec): Commit to tentative parse
2942 if there's a missing close paren.
2944 PR c++/90490 - fix decltype issues in noexcept-specifier.
2945 * except.c (build_noexcept_spec): Call
2946 instantiate_non_dependent_expr_sfinae before
2947 build_converted_constant_expr instead of calling
2948 instantiate_non_dependent_expr after it. Add
2949 processing_template_decl_sentinel.
2951 2019-06-21 Jakub Jelinek <jakub@redhat.com>
2954 * semantics.c (finish_omp_clauses): Don't reject references to
2955 incomplete types if processing_template_decl.
2957 2019-06-19 Marek Polacek <polacek@redhat.com>
2959 PR c++/60364 - noreturn after first decl not diagnosed.
2960 * decl.c (duplicate_decls): Give an error when a function is
2961 declared [[noreturn]] after its first declaration.
2962 * parser.c (cp_parser_std_attribute): Don't treat C++11 noreturn
2963 attribute as equivalent to GNU's.
2964 * tree.c (std_attribute_table): Add noreturn.
2966 2019-06-19 Jakub Jelinek <jakub@redhat.com>
2968 * cp-gimplify.c (cp_genericize_r): Handle OMP_CLAUSE_{IN,EX}CLUSIVE
2969 like OMP_CLAUSE_SHARED.
2971 2019-06-18 Jason Merrill <jason@redhat.com>
2973 * constexpr.c (cxx_eval_store_expression): Delay target evaluation.
2975 2019-06-18 Jason Merrill <jason@redhat.com>
2977 * constexpr.c (eval_and_check_array_index): Split out from...
2978 (cxx_eval_array_reference): ...here.
2979 (cxx_eval_store_expression): Use it here, too.
2980 (diag_array_subscript): Take location. Strip location wrapper.
2982 2019-06-18 Jason Merrill <jason@redhat.com>
2984 * constexpr.c (cxx_eval_constant_expression): Handle conversion from
2985 and then to the same type.
2987 2019-06-18 Jason Merrill <jason@redhat.com>
2989 * constexpr.c (unshare_constructor): Add MEM_STAT_DECL.
2991 2019-06-17 Jakub Jelinek <jakub@redhat.com>
2993 * semantics.c (finish_omp_clauses): For OMP_CLAUSE_REDUCTION_INSCAN
2994 set need_copy_assignment.
2996 2019-06-17 Marek Polacek <polacek@redhat.com>
2998 PR c++/83820 - excessive attribute arguments not detected.
2999 * parser.c (cp_parser_std_attribute): Detect excessive arguments.
3001 2019-06-17 Nathan Sidwell <nathan@acm.org>
3004 * name-lookup.c (lookup_type_scope_1): Calll qualify_lookup before
3007 2019-06-14 Marek Polacek <polacek@redhat.com>
3009 PR c++/90884 - stray note with -Wctor-dtor-privacy.
3010 * class.c (maybe_warn_about_overly_private_class): Guard the call to
3013 2019-06-12 Jason Merrill <jason@redhat.com>
3015 PR c++/85552 - wrong instantiation of dtor for DMI.
3016 * typeck2.c (digest_nsdmi_init): Set tf_no_cleanup for direct-init.
3018 2019-06-13 Paolo Carlini <paolo.carlini@oracle.com>
3020 * decl.c (grokdeclarator): Use id_loc in five additional places
3021 in the last part of the function.
3023 2019-06-13 Paolo Carlini <paolo.carlini@oracle.com>
3025 * decl.c (grokdeclarator): Move further up the declaration of
3026 id_loc, use it immediately, update its value after the loop
3027 over declarator, use it again in the final part of function;
3028 improve locations of error messages about multiple data types
3029 and conflicting specifiers.
3031 2019-06-13 Richard Biener <rguenther@suse.de>
3034 * typeck2.c (split_nonconstant_init_1): Properly count
3035 num_split_elts, optimize single constructor elt removal.
3037 2019-06-12 Marek Polacek <polacek@redhat.com>
3039 PR c++/66999 - 'this' captured by reference.
3040 * parser.c (cp_parser_lambda_introducer): Reject `&this'. Use
3041 cp_lexer_nth_token_is instead of cp_lexer_peek_nth_token.
3043 PR c++/90825 - endless recursion when evaluating sizeof.
3044 PR c++/90832 - endless recursion when evaluating sizeof.
3045 * constexpr.c (cxx_eval_constant_expression): Don't recurse on the
3046 result of fold_sizeof_expr if is returns a SIZEOF_EXPR.
3047 * typeck.c (cxx_sizeof_expr): Only return a SIZEOF_EXPR if the operand
3048 is instantiation-dependent.
3050 PR c++/90736 - bogus error with alignof.
3051 * constexpr.c (adjust_temp_type): Use cv_unqualified type.
3053 2019-06-11 Matthew Beliveau <mbelivea@redhat.com>
3055 PR c++/90449 - add -Winaccessible-base option.
3056 * class.c (warn_about_ambiguous_bases): Changed name to:
3057 maybe_warn_about_inaccessible_bases.
3058 (maybe_warn_about_inaccessible_bases): Implemented new
3059 Winaccessible-base warning option for both direct and virtual
3061 (layout_class_type): Call to warn_about_ambiguous_bases changed to fit
3064 2019-06-11 Richard Biener <rguenther@suse.de>
3067 * typeck2.c (split_nonconstant_init_1): Avoid ordered remove
3068 from CONSTRUCTOR by marking to remove elements and doing all
3069 of them in a O(n) scan.
3071 2019-06-11 Jakub Jelinek <jakub@redhat.com>
3074 * init.c (constant_value_1): Handle VECTOR_CST DECL_INITIAL for
3075 !DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P decls like CONSTRUCTOR.
3077 2019-06-11 Martin Liska <mliska@suse.cz>
3080 * pt.c (init_template_processing): Disable hash table
3081 sanitization for decl_specializations and type_specializations.
3083 2019-06-10 Jason Merrill <jason@redhat.com>
3085 * constexpr.c (free_constructor): New.
3086 (cxx_eval_call_expression): Free parameter value CONSTRUCTORs.
3088 * constexpr.c (unshare_constructor): Only unshare if T is itself a
3090 (cxx_eval_call_expression): Don't call it on the result here.
3092 Reduce constexpr_call memory consumption.
3093 * constexpr.c (cxx_bind_parameters_in_call): Use TREE_VEC rather
3095 (constexpr_call_hasher::equal, cxx_bind_parameters_in_call)
3096 (cxx_eval_call_expression): Adjust.
3098 2019-06-10 Jakub Jelinek <jakub@redhat.com>
3100 * parser.c (cp_parser_omp_clause_reduction): Don't sorry_at on inscan
3102 (cp_parser_omp_scan_loop_body): New function.
3103 (cp_parser_omp_for_loop): Call cp_parser_omp_scan_loop_body if there
3104 are inscan reduction clauses.
3105 (cp_parser_pragma): Reject PRAGMA_OMP_SCAN.
3106 * semantics.c (finish_omp_clauses): Reject mixing inscan with
3107 non-inscan reductions on the same construct, or inscan reductions with
3108 ordered or schedule clauses, or inscan array reductions.
3109 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_{IN,EX}CLUSIVE.
3110 (tsubst_expr): Handle OMP_SCAN.
3112 2019-06-07 Jason Merrill <jason@redhat.com>
3114 * constexpr.c (cxx_eval_constant_expression): Call
3115 STRIP_ANY_LOCATION_WRAPPER early.
3116 [CONVERT_EXPR]: Don't build anything for conversion to void.
3117 [ADDR_EXPR]: ggc_free unused ADDR_EXPR.
3119 2019-06-05 Martin Sebor <msebor@redhat.com>
3122 * typeck.c (maybe_warn_about_returning_address_of_local): Only
3123 consider functions returning pointers as candidates for
3124 -Wreturn-local-addr.
3126 2019-06-05 Paolo Carlini <paolo.carlini@oracle.com>
3128 * decl.c (smallest_type_location): New.
3129 (check_special_function_return_type): Use it.
3130 (grokdeclarator): Lkewise.
3132 2019-06-05 Paolo Carlini <paolo.carlini@oracle.com>
3134 * decl.c (grokdeclarator): Use locations[ds_friend]
3137 2019-06-05 Martin Sebor <msebor@redhat.com>
3139 * call.c (build_conditional_expr_1): Adjust quoting and hyphenation.
3140 (convert_like_real): Same.
3141 (convert_arg_to_ellipsis): Same.
3142 * constexpr.c (diag_array_subscript): Same.
3143 * constraint.cc (diagnose_trait_expression): Same.
3144 * cvt.c (ocp_convert): Same.
3145 * decl.c (start_decl): Same.
3146 (check_for_uninitialized_const_var): Same.
3148 (check_special_function_return_type): Same.
3149 (finish_enum_value_list): Same.
3150 (start_preparsed_function): Same.
3151 * parser.c (cp_parser_decl_specifier_seq): Same.
3152 * typeck.c (cp_build_binary_op): Same.
3153 (build_static_cast_1): Same.
3155 2019-06-04 Nina Dinka Ranns <dinka.ranns@gmail.com>
3157 PR c++/63149 - Wrong auto deduction from braced-init-list.
3158 * pt.c (listify_autos): use non cv qualified auto_node in
3159 std::initializer_list<auto>.
3161 2019-06-04 Paolo Carlini <paolo.carlini@oracle.com>
3163 * decl.c (grokdeclarator): Use declarator->id_loc in two
3166 2019-06-04 Nathan Sidwell <nathan@acm.org>
3168 * name-lookup.c (lookup_type_scope_1): Reimplement, handle local
3169 and namespace scopes separately.
3171 2019-06-04 Harald van Dijk <harald@gigawatt.nl>
3173 PR c++/60531 - Wrong error about unresolved overloaded function
3174 * typeck.c (cp_build_binary_op): See if overload can be resolved.
3175 (cp_build_unary_op): Ditto.
3177 2019-06-04 Jason Merrill <jason@redhat.com>
3179 Reduce accumulated garbage in constexpr evaluation.
3180 * constexpr.c (cxx_eval_call_expression): ggc_free any bindings we
3182 (cxx_eval_increment_expression): ggc_free the MODIFY_EXPR after
3185 2019-06-04 Jakub Jelinek <jakub@redhat.com>
3187 * cp-tree.h (CP_OMP_CLAUSE_INFO): Allow for any clauses up to _condvar_
3188 instead of only up to linear.
3190 2019-06-03 Paolo Carlini <paolo.carlini@oracle.com>
3192 * parser.c (cp_parser_unqualified_id): Use build_min_nt_loc in
3195 2019-06-01 Ville Voutilainen <ville.voutilainen@gmail.com>
3198 * class.c (fixup_type_variants): Handle CLASSTYPE_FINAL.
3200 2019-05-31 Nathan Sidwell <nathan@acm.org>
3202 * cp-tree.h (IDENTIFIER_LAMBDA_P): New.
3204 (LAMBDA_TYPE_P, TYPE_UNNAMED_P): Likewise.
3205 (LAMBDANAME_PREFIX, LAMBDANAME_FORMAT): Delete.
3206 (make_lambda_name): Don't declare.
3207 * error.c (dump_aggr_type): Check for lambdas before other
3209 * lambda.c (begin_lambda_type): Use make_anon_name.
3210 * cp-lang.c (cxx_dwarf_name): Lambda names smell anonymous.
3211 * mangle.c (write_local_name): Likewise.
3212 * name-lookup.c (lambda_cnt, make_lambda_name): Delete.
3214 2019-05-30 Marek Polacek <polacek@redhat.com>
3216 * cp-tree.h (TYPE_HAS_NONTRIVIAL_DESTRUCTOR): Fix a typo.
3218 2019-05-31 Paolo Carlini <paolo.carlini@oracle.com>
3220 * decl.c (grokdeclarator): Use declarator->id_loc in five
3223 2019-05-29 Jakub Jelinek <jakub@redhat.com>
3226 * tree.c (lvalue_kind): Return clk_none for expressions with
3229 2019-05-29 Paolo Carlini <paolo.carlini@oracle.com>
3232 * parser.c (cp_parser_sizeof_operand): When the type-id production
3233 did not work out commit to the tentative parse.
3235 2019-05-29 Jakub Jelinek <jakub@redhat.com>
3237 P1091R3 - Extending structured bindings to be more like var decls
3238 P1381R1 - Reference capture of structured bindings
3239 * decl.c (cp_maybe_mangle_decomp): Handle TREE_STATIC decls even at
3241 (cp_finish_decomp): Copy over various decl properties from decl to
3242 v[i] in the tuple case.
3243 (grokdeclarator): Allow static, thread_local and __thread for C++2a
3244 and use pedwarn instead of error for older standard revisions.
3245 Make other structured binding diagnostic messages more i18n friendly.
3247 2019-05-28 Nathan Sidwell <nathan@acm.org>
3249 * decl.c (duplicate_decls): Assert a template newdecl has no
3252 2019-05-28 Marek Polacek <polacek@redhat.com>
3254 PR c++/90548 - ICE with generic lambda and empty pack.
3255 * pt.c (tsubst_copy_and_build): Handle pack expansion properly.
3257 2019-05-28 Nathan Sidwell <nathan@acm.org>
3259 * cp-tree.h (make_anon_name): Drop declaration.
3260 (TYPE_UNNAMED_P): Use IDENTIFIER_ANON_P.
3261 * cp-lang.c (cxx_dwarf_name): Likewise.
3262 * class.c (find_flexarrays): Likewise.
3263 * decl.c (name_unnamed_type, xref_tag_1): Likewise.
3264 * error.c (dump_aggr_type): Likewise.
3265 * pt.c (push_template_decl_real): Likewise.
3266 * name-lookup.c (consider_binding_level): Likewise.
3267 (anon_cnt, make_anon_name): Delete.
3269 2019-05-25 Marek Polacek <polacek@redhat.com>
3271 PR c++/90572 - wrong disambiguation in friend declaration.
3272 * parser.c (cp_parser_constructor_declarator_p): Don't allow missing
3273 typename for friend declarations.
3275 2019-05-23 Jonathan Wakely <jwakely@redhat.com>
3277 * cp-tree.h (CP_AGGREGATE_TYPE_P): Fix whitespace.
3279 * init.c (std_placement_new_fn_p): Remove outdated TODO comment that
3280 was resolved by r254694.
3282 2019-05-22 Jason Merrill <jason@redhat.com>
3284 PR c++/20408 - unnecessary code for empty struct.
3285 * call.c (build_call_a): Use simple_empty_class_p.
3287 PR c++/86485 - -Wmaybe-unused with empty class ?:
3288 * cp-gimplify.c (simple_empty_class_p): Also true for MODIFY_EXPR.
3290 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
3292 * parser.c (cp_parser_template_declaration_after_parameters): Use
3293 DECL_SOURCE_LOCATION in literal operator template errors.
3295 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
3299 * call.c (build_over_call): Devirtualize when the final overrider
3300 comes from the base.
3302 2019-05-21 Nathan Sidwell <nathan@acm.org>
3304 * name-lookup.c (do_nonmember_using_decl): Drop INSERT_P
3305 parameter. Document.
3306 (finish_nonmember_using_decl): Adjust do_nonmember_using_decl
3307 calls. Remove stray FIXME comment.
3309 * name-lookup.h (struct cp_binding_level): Drop usings field.
3310 (finish_namespace_using_decl, finish_local_using_decl): Replace with ...
3311 (finish_nonmember_using_decl): ... this.
3312 * name-lookup.c (push_using_decl_1, push_using_decl):
3313 (do_nonmember_using_decl): ... here. Add INSERT_P arg. Reimplement.
3314 (validate_nonmember_using_decl, finish_namespace_using_decl)
3315 (finish_local_using_decl): Replace with ...
3316 (finish_nonmember_using_decl): ... this. Drop DECL parm.
3317 * parser.c (cp_parser_using_declaration): Don't do lookup here.
3318 * pt.c (tsubst_expr): Do not do using decl lookup here.
3320 2019-05-21 Eric Botcazou <ebotcazou@adacore.com>
3322 * decl2.c (cpp_check) <IS_ASSIGNMENT_OPERATOR>: New case.
3324 2019-05-20 Marek Polacek <polacek@redhat.com>
3326 CWG 2094 - volatile scalars are trivially copyable.
3328 * tree.c (trivially_copyable_p): Don't check CP_TYPE_VOLATILE_P for
3331 2019-05-20 Marek Polacek <polacek@redhat.com>
3333 * pt.c (convert_template_argument): Add a diagnostic for the
3334 [temp.arg]/2 ambiguity case.
3336 * name-lookup.c (finish_using_directive): Don't issue inform() if the
3337 warning didn't trigger. Add quoting. Tweak the inform message.
3339 2019-05-20 Paolo Carlini <paolo.carlini@oracle.com>
3341 * cp-tree.h: Remove remnants of CONV_NONCONVERTING.
3343 2019-05-20 Nathan Sidwell <nathan@acm.org>
3345 * name-lookup.c (finish_namespace_using_directive)
3346 (finish_local_using_directive): Merge to ...
3347 (finish_using_directive): ... here. Handle both contexts.
3348 * name-lookup.h (finish_namespace_using_directive)
3349 (finish_local_using_directive): Replace with ...
3350 (finish_using_directive): ... this.
3351 * parser.c (cp_parser_using_directive): Adjust.
3352 * pt.c (tsubst_expr): Likewise.
3354 * cp-tree.h (struct lang_decl_ns): Remove usings field.
3355 (DECL_NAMESPACE_USING): Delete.
3356 * name-lookup.c (name_lookup::search_usings): Use namespace's
3358 (name_lookup::queue_namespae): Likewise.
3359 (finish_namespace_using_directive, push_namespace): Likewise.
3360 (has_using_namespace_std_directive): Just search the entire
3363 2019-05-20 Jonathan Wakely <jwakely@redhat.com>
3365 PR c++/90532 Ensure __is_constructible(T[]) is false
3366 * method.c (is_xible_helper): Return error_mark_node for construction
3367 of an array of unknown bound.
3369 2019-05-17 Thomas Schwinge <thomas@codesourcery.com>
3372 * parser.c (cp_finalize_oacc_routine): Rework checking if already
3373 marked with an OpenACC 'routine' directive.
3376 * parser.c (cp_parser_oacc_routine)
3377 (cp_parser_late_parsing_oacc_routine): Normalize order of clauses.
3378 (cp_finalize_oacc_routine): Call oacc_verify_routine_clauses.
3381 * parser.c (cp_finalize_oacc_routine): Refer to OpenACC 'routine'
3382 clauses from "omp declare target" attribute.
3384 2019-05-16 Martin Sebor <msebor@redhat.com>
3386 * call.c (print_z_candidate): Wrap diagnostic text in a gettext
3388 (print_z_candidates): Same.
3389 (build_conditional_expr_1): Quote keywords, operators, and types
3391 (build_op_delete_call): Same.
3392 (maybe_print_user_conv_context): Wrap diagnostic text in a gettext
3394 (convert_like_real): Same.
3395 (convert_arg_to_ellipsis): Quote keywords, operators, and types
3397 (build_over_call): Same.
3398 (joust): Break up an overlong line. Wrap diagnostic text in a gettext
3400 * constexpr.c (cxx_eval_check_shift_p): Spell out >= in English.
3401 (cxx_eval_constant_expression): Quote keywords, operators, and types
3403 (potential_constant_expression_1): Same.
3404 * cp-gimplify.c (cp_genericize_r): Same.
3405 * cvt.c (maybe_warn_nodiscard): Quote keywords, operators, and types
3407 (type_promotes_to): Same.
3408 * decl.c (check_previous_goto_1): Same.
3411 (cp_finish_decl): Avoid parenthesizing a sentence for consistency.
3412 (grok_op_properties): Quote keywords, operators, and types
3414 * decl2.c (grokfield): Same.
3415 (coerce_delete_type): Same.
3416 * except.c (is_admissible_throw_operand_or_catch_parameter): Same.
3417 * friend.c (do_friend): Quote C++ tokens.
3418 * init.c (build_new_1): Quote keywords, operators, and types
3420 (build_vec_delete_1): Same.
3421 (build_delete): Same.
3422 * lex.c (parse_strconst_pragma): Same.
3423 (handle_pragma_implementation): Same.
3424 (unqualified_fn_lookup_error): Same.
3425 * mangle.c (write_type): Same.
3426 * method.c (defaulted_late_check): Avoid two consecutive punctuators.
3427 * name-lookup.c (cp_binding_level_debug): Remove a trailing newline.
3428 (pop_everything): Same.
3429 * parser.c (cp_lexer_start_debugging): Quote a macro name.
3431 (cp_lexer_stop_debugging): Same.
3432 (cp_parser_userdef_numeric_literal): Quote a C++ header name
3434 (cp_parser_nested_name_specifier_opt): Quote keywords, operators,
3435 and types in diagnostics.
3436 (cp_parser_question_colon_clause): Same.
3437 (cp_parser_asm_definition): Same.
3438 (cp_parser_init_declarator): Same.
3439 (cp_parser_template_declaration_after_parameters): Avoid capitalizing
3440 a sentence in a diagnostic.
3441 (cp_parser_omp_declare_reduction): Quote keywords, operators, and types
3443 (cp_parser_transaction): Same.
3444 * pt.c (maybe_process_partial_specialization): Replace second call
3445 to permerror with inform for consistency with other uses.
3446 (expand_integer_pack): Quote keywords, operators, and types
3448 * rtti.c (get_typeid): Quote keywords, operators, and types
3450 (build_dynamic_cast_1): Same.
3451 * semantics.c (finish_asm_stmt): Same.
3452 (finish_label_decl): Same.
3453 (finish_bases): Same.
3454 (finish_offsetof): Same.
3455 (cp_check_omp_declare_reduction): Same.
3456 (finish_decltype_type): Same.
3457 * tree.c (handle_init_priority_attribute): Same. Add detail
3459 (maybe_warn_zero_as_null_pointer_constant): Same.
3460 * typeck.c (cp_build_binary_op): Quote keywords, operators, and types
3462 (cp_build_unary_op): Same.
3463 (check_for_casting_away_constness): Same.
3464 (build_static_cast): Same.
3465 (build_const_cast_1): Same.
3466 (maybe_warn_about_returning_address_of_local): Same.
3467 (check_return_expr): Same.
3468 * typeck2.c (abstract_virtuals_error_sfinae): Same.
3469 (digest_init_r): Replace a tab with spaces in a diagnostic.
3470 (build_functional_cast): Quote keywords, operators, and types
3473 2019-05-15 Jakub Jelinek <jakub@redhat.com>
3476 * cp-gimplify.c (genericize_cp_loop): Emit a DEBUG_BEGIN_STMT
3477 before the condition (or if missing or constant non-zero at the end
3478 of the loop. Emit a DEBUG_BEGIN_STMT before the increment expression
3479 if any. Don't call protected_set_expr_location on incr if it already
3482 2019-05-15 Marek Polacek <polacek@redhat.com>
3484 CWG 2096 - constraints on literal unions.
3485 * class.c (check_field_decls): Initialize booleans directly. A union
3486 is literal if at least one of its non-static data members is of
3487 non-volatile literal type.
3489 2019-05-15 Paolo Carlini <paolo.carlini@oracle.com>
3491 * cp-tree.h (REFERENCE_VLA_OK): Remove.
3492 * lambda.c (build_capture_proxy): Remove use of the above.
3494 2019-05-15 Paolo Carlini <paolo.carlini@oracle.com>
3496 * call.c (perform_overload_resolution, build_new_method_call_1):
3497 Use OVL_P; remove redundant TEMPLATE_DECL checks.
3498 * decl.c (grokfndecl): Likewise.
3499 * mangle.c (write_expression): Likewise.
3500 * parser.c (cp_parser_template_id): Likewise.
3501 * pt.c (resolve_overloaded_unification, type_dependent_expression_p):
3503 * search.c (build_baselink): Likewise.
3504 * tree.c (is_overloaded_fn, dependent_name, maybe_get_fns): Likewise.
3506 2019-05-14 Paolo Carlini <paolo.carlini@oracle.com>
3508 PR preprocessor/90382
3509 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3512 2019-05-13 Jason Merrill <jason@redhat.com>
3514 Use releasing_vec more broadly.
3515 * cp-tree.h (struct releasing_vec): Replace get_ref method with
3517 (vec_safe_push, vec_safe_reserve, vec_safe_length, vec_safe_splice):
3518 Forwarding functions for releasing_vec.
3519 (release_tree_vector): Declare but don't define.
3520 * call.c (build_op_delete_call, build_temp, call_copy_ctor)
3521 (perform_direct_initialization_if_possible): Use releasing_vec.
3522 * constexpr.c (cxx_eval_vec_init_1, cxx_eval_store_expression):
3524 * cp-gimplify.c (cp_fold): Likewise.
3525 * cvt.c (force_rvalue, ocp_convert): Likewise.
3526 * decl.c (get_tuple_decomp_init): Likewise.
3527 * except.c (build_throw): Likewise.
3528 * init.c (perform_member_init, expand_default_init): Likewise.
3529 * method.c (do_build_copy_assign, locate_fn_flags): Likewise.
3530 * parser.c (cp_parser_userdef_char_literal)
3531 (cp_parser_userdef_numeric_literal)
3532 (cp_parser_userdef_string_literal)
3533 (cp_parser_perform_range_for_lookup)
3534 (cp_parser_range_for_member_function, cp_parser_omp_for_loop)
3535 (cp_parser_omp_for_loop_init): Likewise.
3536 * pt.c (tsubst_copy_and_build, do_class_deduction): Likewise.
3537 * semantics.c (calculate_direct_bases, calculate_bases)
3538 (finish_omp_barrier, finish_omp_flush, finish_omp_taskwait)
3539 (finish_omp_taskyield, finish_omp_cancel)
3540 (finish_omp_cancellation_point): Likewise.
3541 * tree.c (build_vec_init_elt, strip_typedefs, strip_typedefs_expr)
3542 (build_min_non_dep_op_overload): Likewise.
3543 * typeck.c (build_function_call_vec, cp_build_function_call_nary)
3544 (cp_build_modify_expr): Likewise.
3545 * typeck2.c (build_functional_cast): Likewise.
3547 2019-05-11 Paolo Carlini <paolo.carlini@oracle.com>
3549 * typeck.c (cp_build_function_call_vec): When mark_used fails
3550 unconditionally return error_mark_node.
3552 2019-05-10 Paolo Carlini <paolo.carlini@oracle.com>
3554 * decl.c (grokvardecl): Use an accurate location in error message
3555 about main as a global variable.
3557 2019-05-10 Paolo Carlini <paolo.carlini@oracle.com>
3559 * call.c (build_call_a): Use FUNC_OR_METHOD_TYPE_P.
3560 * cp-gimplify.c (cp_fold): Likewise.
3561 * cp-objcp-common.c (cp_type_dwarf_attribute): Likewise.
3562 * cp-tree.h (TYPE_OBJ_P, TYPE_PTROBV_P): Likewise.
3563 * cvt.c (perform_qualification_conversions): Likewise.
3564 * decl.c (grokdeclarator): Likewise.
3565 * decl2.c (build_memfn_type): Likewise.
3566 * mangle.c (canonicalize_for_substitution, write_type): Likewise.
3567 * parser.c (cp_parser_omp_declare_reduction): Likewise.
3568 * pt.c (check_explicit_specialization, uses_deducible_template_parms,
3569 check_cv_quals_for_unify, dependent_type_p_r): Likewise.
3570 * rtti.c (ptr_initializer): Likewise.
3571 * semantics.c (finish_asm_stmt, finish_offsetof,
3572 cp_check_omp_declare_reduction): Likewise.
3573 * tree.c (cp_build_qualified_type_real,
3574 cp_build_type_attribute_variant, cxx_type_hash_eq,
3575 cxx_copy_lang_qualifiers, cp_free_lang_data): Likewise.
3576 * typeck.c (structural_comptypes, convert_arguments,
3577 cp_build_addr_expr_1, unary_complex_lvalue, cp_build_c_cast,
3578 cp_build_modify_expr, comp_ptr_ttypes_real, type_memfn_rqual):
3581 2019-05-10 Marek Polacek <polacek@redhat.com>
3583 PR c++/78010 - bogus -Wsuggest-override warning on final function.
3584 * class.c (check_for_override): Don't warn for final functions.
3586 2019-05-10 Jakub Jelinek <jakub@redhat.com>
3589 * config-lang.in (gtfiles): Remove c-family/c-lex.c, add
3590 c-family/c-cppbuiltin.c.
3592 2019-05-09 Paolo Carlini <paolo.carlini@oracle.com>
3596 2018-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3598 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3601 2019-05-08 Nathan Sidwell <nathan@acm.org>
3603 Kill DECL_SAVED_FUNCTION_DATA .
3604 * cp-tree.h (language_function): Remove x_auto_return_pattern.
3605 (current_function_auto_return_pattern): Delete.
3606 (lang_decl_fn): Replace saved_language_function with
3607 saved_auto_return type.
3608 (DECL_SAVED_FUNCTION_DATA): Delete.
3609 (DECL_SAVED_AUTO_RETURN_TYPE): New.
3610 (FNDECL_USED_AUTO): Correct documentation.
3611 * decl.c (duplicate_decls): Adjust AUTO return handling.
3612 (start_preparsed_function): Replace
3613 current_function_auto_return_pattern with
3614 DECL_SAVED_AUTO_RETURN_TYPE. Remove DECL_SAVED_FUNCTION_DATA
3616 (finish_function): Likewise.
3617 (save_function_data): Delete.
3618 (fndecl_declared_return_type): Reimplement.
3619 * mangle.c (write_unqualified_name): Use DECL_SAVED_AUTO_RETURN_TYPE.
3620 * method.c (make_thunk, make_alias_for): Likewise.
3621 * parser.c (cp_parser_jump_statement): Likewise.
3622 * pt.c (do_auto_deduction): Likewise.
3623 * typeck.c (check_return_expr): Likewise.
3625 2019-05-06 Jason Merrill <jason@redhat.com>
3627 PR c++/90171 - reorganize usual_deallocation_fn_p
3628 * call.c (struct dealloc_info): New.
3629 (usual_deallocation_fn_p): Take a dealloc_info*.
3630 (aligned_deallocation_fn_p, sized_deallocation_fn_p): Remove.
3631 (build_op_delete_call): Adjust.
3633 2019-05-07 Jason Merrill <jason@redhat.com>
3635 PR c++/86485 - -Wmaybe-unused with empty class ?:
3636 * typeck.c (build_static_cast_1): Use cp_build_addr_expr.
3638 * pt.c (type_dependent_expression_p): A non-type template parm with
3639 a placeholder type is type-dependent.
3641 2019-05-06 Marek Polacek <polacek@redhat.com>
3643 PR c++/90265 - ICE with generic lambda.
3644 * pt.c (tsubst_copy_and_build): Use a dedicated variable for the last
3645 element in the vector.
3647 2019-05-03 Martin Liska <mliska@suse.cz>
3649 * call.c (build_aggr_conv): Use is_empty instead of
3650 elements () == 0 (and similar usages).
3651 * parser.c (cp_parser_lambda_introducer): Likewise.
3653 2019-05-02 Nathan Sidwell <nathan@acm.org>
3655 * semantics.c (finish_id_expression_1): Remove unreachable code.
3657 2019-05-01 Nathan Sidwell <nathan@acm.org>
3659 * name-lookup.h (get_class_binding_direct): Change final arg to
3661 (get_class_binding): Likewise.
3662 * name-lookup.c (get_class_binding_direct): Replace TYPE_OR_FNS
3663 arg with WANT_TYPE bool. Simplify.
3664 (get_class_binding): Adjust final arg.
3665 * decl.c (reshape_init_class): Adjust get_class_binding calls.
3667 2019-04-30 Nathan Sidwell <nathan@acm.org>
3669 * cp-objcp-common.c (cp_common_init_ts): Use MARK_TS_EXP for _EXPR
3670 nodes. Call c_common_init_ts.
3672 2019-04-29 Nathan Sidwell <nathan@acm.org>
3674 * decl.c (duplicate_decls): Add whitespace, move comments into
3676 * method.c (explain_implicit_non_constexpr): Refactor.
3677 * pt.c (check_explicit_specialization): Fix indentation.
3678 * semantics.c (process_outer_var_ref): Reformat.
3679 (finish_id_expression_1): Use STRIP_TEMPLATE.
3681 2019-04-26 Jonathan Wakely <jwakely@redhat.com>
3683 PR c++/90243 - orphaned note in uninstantiated constexpr function
3684 * decl.c (check_for_uninitialized_const_var): Suppress notes if no
3687 2019-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3690 * decl.c (grokdeclarator): Set type to error_mark_node
3691 upon error about template placeholder type non followed
3692 by a simple declarator-id.
3694 2019-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3696 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3699 2019-04-24 Jason Merrill <jason@redhat.com>
3701 PR c++/90227 - error with template parameter packs.
3702 * pt.c (coerce_template_parms): Do add empty pack when
3705 2019-04-24 Richard Biener <rguenther@suse.de>
3707 * call.c (null_ptr_cst_p): Order checks according to expensiveness.
3708 (conversion_null_warnings): Likewise.
3709 * typeck.c (same_type_ignoring_top_level_qualifiers_p): Return
3710 early if type1 == type2.
3712 2019-04-22 Jason Merrill <jason@redhat.com>
3714 PR c++/87366 - wrong error with alias template.
3715 * typeck.c (structural_comptypes): When comparing_specializations,
3716 aliases are unequal.
3717 (comptypes): When comparing_specializations, do structural
3720 2019-04-19 Jason Merrill <jason@redhat.com>
3722 PR c++/90190 - CTAD with list-constructor.
3723 * pt.c (do_class_deduction): Don't try the single element deduction
3724 if the single element is also a braced list.
3726 PR c++/90171 - ICE with destroying delete with size_t parm.
3727 * call.c (sized_deallocation_fn_p): New. Use it instead of
3728 second_parm_is_size_t in most cases.
3729 (second_parm_is_size_t): Don't check for aligned.
3731 2019-04-19 Paolo Carlini <paolo.carlini@oracle.com>
3734 * pt.c (fn_type_unification): When handling null explicit
3735 arguments do not special case non-parameter packs.
3737 2019-04-19 Jakub Jelinek <jakub@redhat.com>
3740 * pt.c (process_template_parm): Set decl to pushdecl result. If
3741 !is_non_type, also set parm to that.
3744 * decl.c (struct cp_switch): Remove outside_range_p member.
3745 (push_switch): Don't clear it.
3746 (pop_switch): Adjust c_do_switch_warnings caller.
3747 (finish_case_label): Adjust c_add_case_label caller.
3750 * decl.c (duplicate_decls): If remove is main variant and
3751 DECL_ORIGINAL_TYPE is some other type, remove a DECL_ORIGINAL_TYPE
3752 variant that has newdecl as TYPE_NAME if any.
3754 2019-04-18 Jason Merrill <jason@redhat.com>
3756 PR c++/87554 - ICE with extern template and reference member.
3757 * decl.c (cp_finish_decl): Don't set DECL_INITIAL of external vars.
3759 2019-04-17 Jason Merrill <jason@redhat.com>
3761 PR c++/90047 - ICE with enable_if alias template.
3762 * pt.c (tsubst_decl) [TYPE_DECL]: Don't put an erroneous decl in the
3763 hash table when we're in SFINAE context.
3765 2019-04-17 Marek Polacek <polacek@redhat.com>
3767 PR c++/90124 - bogus error with incomplete type in decltype.
3768 * typeck.c (build_class_member_access_expr): Check
3769 cp_unevaluated_operand.
3771 2019-04-12 Jakub Jelinek <jakub@redhat.com>
3774 * decl.c (duplicate_decls): When newdecl's type is its main variant,
3775 don't try to remove it from the variant list, but instead assert
3778 2019-04-12 Martin Sebor <msebor@redhat.com>
3782 * parser.c (cp_parser_has_attribute_expression): Handle assignment
3785 2019-04-12 Jason Merrill <jason@redhat.com>
3787 * call.c (null_member_pointer_value_p): Handle an empty CONSTRUCTOR
3790 2019-04-12 Marek Polacek <polacek@redhat.com>
3792 * except.c (build_noexcept_spec): Use build_converted_constant_bool_expr
3793 instead of perform_implicit_conversion_flags.
3795 PR c++/87603 - constexpr functions are no longer noexcept.
3796 * constexpr.c (is_sub_constant_expr): Remove unused function.
3797 * cp-tree.h (is_sub_constant_expr): Remove declaration.
3798 * except.c (check_noexcept_r): Don't consider a call to a constexpr
3801 2019-04-11 Jakub Jelinek <jakub@redhat.com>
3803 PR translation/90035
3804 * parser.h (struct cp_parser): Add
3805 type_definition_forbidden_message_arg member.
3806 * parser.c (cp_debug_parser): Print it.
3807 (cp_parser_check_type_definition): Pass
3808 parser->type_definition_forbidden_message_arg as second argument to
3810 (cp_parser_has_attribute_expression, cp_parser_sizeof_operand): Set
3811 parser->type_definition_forbidden_message_arg and use G_() with
3812 %qs for parser->type_definition_forbidden_message instead of
3813 building untranslatable message using concat.
3815 2019-04-09 Jakub Jelinek <jakub@redhat.com>
3817 PR translation/90011
3818 * typeck2.c (check_narrowing): Remove trailing space from diagnostics.
3820 2019-04-08 Marek Polacek <polacek@redhat.com>
3822 * typeck2.c (digest_init_r): Don't condition the object slicing warning
3825 2019-04-08 Paolo Carlini <paolo.carlini@oracle.com>
3828 * semantics.c (trait_expr_value): Don't use TYPE_NOTHROW_P
3829 when maybe_instantiate_noexcept fails.
3830 (classtype_has_nothrow_assign_or_copy_p): Likewise.
3831 * method.c (implicitly_declare_fn): Avoid passing error_mark_node
3832 to build_exception_variant.
3834 2019-04-05 Marek Polacek <polacek@redhat.com>
3836 PR c++/87145 - bogus error converting class type in template arg list.
3837 * pt.c (convert_nontype_argument): Don't call
3838 build_converted_constant_expr if it could involve calling a conversion
3839 function with a instantiation-dependent constructor as its argument.
3841 2019-04-05 Martin Sebor <msebor@redhat.com>
3844 * decl.c (reshape_init_array_1): Avoid treating empty strings
3845 as zeros in array initializers.
3846 Use trivial_type_p () instead of TYPE_HAS_TRIVIAL_DFLT().
3848 2019-04-04 Jason Merrill <jason@redhat.com>
3850 PR c++/89948 - ICE with break in statement-expr.
3851 * constexpr.c (cxx_eval_statement_list): Jumping out of a
3852 statement-expr is non-constant.
3854 2019-04-04 Jason Merrill <jason@redhat.com>
3856 PR c++/89966 - error with non-type auto tparm.
3857 * pt.c (do_auto_deduction): Clear tf_partial.
3859 2019-04-04 Jason Merrill <jason@redhat.com>
3861 PR c++/86986 - ICE with TTP with parameter pack.
3862 * pt.c (coerce_template_parameter_pack): Only look at the type of a
3863 non-type parameter pack.
3864 (fixed_parameter_pack_p_1): Don't recurse into the type of a
3865 non-type parameter pack.
3866 (coerce_template_template_parms): Call add_outermost_template_args.
3868 2019-04-04 Martin Sebor <msebor@redhat.com>
3874 * decl.c (reshape_init_array_1): Strip trailing zero-initializers
3875 from arrays of trivial type and known size.
3876 * mangle.c (write_expression): Convert braced initializer lists
3878 (write_expression): Trim trailing zero-initializers from arrays
3880 (write_template_arg_literal): Mangle strings the same as braced
3883 2019-04-03 Jason Merrill <jason@redhat.com>
3885 PR c++/81866 - ICE with member template and default targ.
3886 * pt.c (tsubst_template_decl): Handle getting a type from
3887 retrieve_specialization.
3889 PR c++/86586 - -fcompare-debug=-Wsign-compare.
3890 * typeck.c (cp_build_binary_op): Don't fold for -Wsign-compare.
3892 PR c++/89331 - ICE with offsetof in incomplete class.
3893 * semantics.c (finish_offsetof): Handle error_mark_node.
3894 * typeck.c (build_class_member_access_expr): Call
3895 complete_type_or_maybe_complain before converting to base.
3897 PR c++/89917 - ICE with lambda in variadic mem-init.
3898 * pt.c (make_pack_expansion): Change type_pack_expansion_p to false.
3900 2019-04-01 Jason Merrill <jason@redhat.com>
3902 PR c++/86946 - ICE with function call in template argument.
3904 * pt.c (iterative_hash_template_arg) [CALL_EXPR]: Use
3907 2019-04-01 Paolo Carlini <paolo.carlini@oracle.com>
3910 * pt.c (tsubst_copy): Deal with lookup_name not returing a variable.
3912 2019-03-31 Marek Polacek <polacek@redhat.com>
3914 PR c++/89852 - ICE with C++11 functional cast with { }.
3915 * constexpr.c (fold_non_dependent_expr_template): New static function
3917 (fold_non_dependent_expr): ...here.
3918 (fold_non_dependent_init): New function.
3919 * cp-tree.h (fold_non_dependent_init): Declare.
3920 * typeck2.c (massage_init_elt): Call fold_non_dependent_init instead
3921 of fold_non_dependent_expr. Don't call maybe_constant_init.
3923 2019-03-30 Jason Merrill <jason@redhat.com>
3925 PR c++/89744 - ICE with specialization of member class template.
3926 * pt.c (lookup_template_class_1): If the partial instantiation is
3927 explicitly specialized, adjust.
3928 (maybe_process_partial_specialization): Also adjust
3931 2019-03-29 Jakub Jelinek <jakub@redhat.com>
3934 * typeck.c: Include gimplify.h.
3935 (cp_build_modify_expr) <case COND_EXPR>: Unshare rhs before using it
3936 for second time. Formatting fixes.
3938 2019-03-29 Marek Polacek <polacek@redhat.com>
3940 PR c++/89876 - ICE with deprecated conversion.
3941 * call.c (convert_like_real): Only give warnings with tf_warning.
3943 2019-03-28 Marek Polacek <polacek@redhat.com>
3945 PR c++/89612 - ICE with member friend template with noexcept.
3946 * pt.c (maybe_instantiate_noexcept): For function templates, use their
3947 template result (function decl). Don't set up local specializations.
3948 Temporarily turn on processing_template_decl. Update the template type
3951 PR c++/89836 - bool constant expression and explicit conversions.
3952 * call.c (build_converted_constant_expr_internal): New function,
3954 (build_converted_constant_expr): ...this. New.
3955 (build_converted_constant_bool_expr): New.
3956 * cp-tree.h (build_converted_constant_bool_expr): Declare.
3957 * decl.c (build_explicit_specifier): Call
3958 build_converted_constant_bool_expr.
3960 2019-03-28 Jakub Jelinek <jakub@redhat.com>
3963 * constexpr.c (struct check_for_return_continue_data): New type.
3964 (check_for_return_continue): New function.
3965 (potential_constant_expression_1) <case SWITCH_STMT>: Walk
3966 SWITCH_STMT_BODY to find RETURN_EXPRs or CONTINUE_STMTs not nested
3967 in loop bodies and set *jump_target to that if found.
3969 2019-03-27 Jason Merrill <jason@redhat.com>
3971 PR c++/89831 - error with qualified-id in const member function.
3972 * semantics.c (finish_non_static_data_member): Use object cv-quals
3973 in scoped case, too.
3975 PR c++/89421 - ICE with lambda in template parameter list.
3976 * parser.c (cp_parser_lambda_expression): Also reject a lambda in a
3977 template parameter list before C++20.
3978 * pt.c (type_dependent_expression_p): True for LAMBDA_EXPR.
3979 * semantics.c (begin_class_definition): Restore error about defining
3980 non-lambda class in template parm list.
3982 2019-03-26 Jason Merrill <jason@redhat.com>
3984 PR c++/86932 - missed SFINAE with empty pack.
3985 * pt.c (coerce_template_parms): Don't add an empty pack if
3987 (fn_type_unification): Pass tf_partial to coerce_template_parms.
3989 PR c++/86429 - constexpr variable in lambda.
3992 * constexpr.c (cxx_eval_constant_expression): In a lambda function,
3993 try evaluating the captured variable directly.
3995 2019-03-26 Jakub Jelinek <jakub@redhat.com>
3998 * semantics.c (finish_omp_atomic): Add warning_sentinel for
3999 -Wunused-value around finish_expr_stmt call.
4001 2019-03-25 Paolo Carlini <paolo.carlini@oracle.com>
4005 * parser.c (cp_parser_binary_expression): Don't call cp_fully_fold
4006 to undo the disabling of warnings.
4008 2019-03-25 Jason Merrill <jason@redhat.com>
4010 PR c++/87748 - substitution failure error with decltype.
4011 * pt.c (most_specialized_partial_spec): Clear
4012 processing_template_decl.
4014 2019-03-25 Marek Polacek <polacek@redhat.com>
4016 PR c++/89214 - ICE when initializing aggregates with bases.
4017 * typeck2.c (digest_init_r): Warn about object slicing instead of
4020 PR c++/89705 - ICE with reference binding with conversion function.
4021 * call.c (reference_binding): If the result of the conversion function
4022 is a prvalue of non-class type, use the cv-unqualified type.
4024 2019-03-25 Nathan Sidwell <nathan@acm.org>
4026 * lambda.c (maybe_add_lambda_conv_op): Don't add to comdat group.
4028 2019-03-22 Jakub Jelinek <jakub@redhat.com>
4031 * cp-tree.h (get_tls_wrapper_fn): Remove declaration.
4032 (maybe_get_tls_wrapper_call): Declare.
4033 * decl2.c (get_tls_wrapper_fn): Make static.
4034 (maybe_get_tls_wrapper_call): New function.
4035 * typeck.c (build_class_member_access_expr): Handle accesses to TLS
4037 * semantics.c (finish_qualified_id_expr): Likewise.
4038 (finish_id_expression_1): Use maybe_get_tls_wrapper_call.
4039 * pt.c (tsubst_copy_and_build): Likewise.
4042 * constexpr.c (struct constexpr_ctx): Add constexpr_ops_count member.
4043 (cxx_eval_constant_expression): When not skipping, not constant class
4044 or location wrapper, increment *ctx->constexpr_ops_count and if it is
4045 above constexpr_loop_nest_limit, diagnose failure.
4046 (cxx_eval_outermost_constant_expr): Add constexpr_ops_count and
4047 initialize ctx.constexpr_ops_count to its address.
4048 (is_sub_constant_expr): Likewise.
4050 2019-03-21 Jakub Jelinek <jakub@redhat.com>
4053 * call.c (filed_in_pset): Change pset from hash_set<tree> * to
4054 hash_set<tree, true> &, adjust uses accordingly.
4055 (build_aggr_conv): Change pset from hash_set<tree> *
4056 to hash_set<tree, true>. Replace goto fail; with return NULL;,
4060 * parser.c (cp_parser_lambda_introducer): Add ids and first_capture_id
4061 variables, check for duplicates in this function.
4062 * lambda.c (add_capture): Don't check for duplicates nor use
4064 (register_capture_members): Don't clear IDENTIFIER_MARKED here.
4066 2019-03-21 Paolo Carlini <paolo.carlini@oracle.com>
4069 * method.c (after_nsdmi_defaulted_late_checks): Avoid passing
4070 error_mark_node to comp_except_specs.
4072 2019-03-20 Jason Merrill <jason@redhat.com>
4074 PR c++/87480 - decltype of member access in default template arg
4075 * pt.c (type_unification_real): Accept a dependent result in
4078 2019-03-19 Martin Sebor <msebor@redhat.com>
4080 PR tree-optimization/89688
4081 * typeck2.c (store_init_value): Call braced_lists_to_string for more
4082 kinds of initializers.
4084 2019-03-18 Jason Merrill <jason@redhat.com>
4086 PR c++/89630 - ICE with dependent using-decl as template arg.
4087 * tree.c (cp_tree_equal): Always return false for USING_DECL.
4089 PR c++/89761 - ICE with sizeof... in pack expansion.
4090 * pt.c (argument_pack_element_is_expansion_p): Handle
4091 ARGUMENT_PACK_SELECT.
4093 PR c++/89640 - GNU attributes on lambda.
4094 * parser.c (cp_parser_lambda_declarator_opt): Allow GNU attributes.
4096 PR c++/89682 - wrong access error in default argument.
4097 * pt.c (tsubst_default_argument): Don't defer access checks.
4099 2019-03-18 Paolo Carlini <paolo.carlini@oracle.com>
4102 * semantics.c (finish_non_static_data_member): Check return value
4103 of context_for_name_lookup and immediately return error_mark_node
4106 2019-03-17 Jason Merrill <jason@redhat.com>
4108 PR c++/89571 - ICE with ill-formed noexcept on constructor.
4109 * pt.c (maybe_instantiate_noexcept): Only return false if defaulted.
4110 (regenerate_decl_from_template): Use it for noexcept-specs.
4112 2019-03-14 Jason Merrill <jason@redhat.com>
4114 * parser.c (cp_parser_decl_specifier_seq): Support C++20
4115 concept-definition syntax without 'bool'.
4117 2019-03-14 Jakub Jelinek <jakub@redhat.com>
4120 * semantics.c (finish_qualified_id_expr): Reject variable templates.
4123 * constexpr.c (struct constexpr_ctx): Change save_exprs type from
4124 hash_set<tree> to vec<tree>.
4125 (cxx_eval_call_expression): Adjust for save_exprs being a vec instead
4127 (cxx_eval_loop_expr): Likewise. Truncate the vector after each
4128 removal of SAVE_EXPRs from values.
4129 (cxx_eval_constant_expression) <case SAVE_EXPR>: Call safe_push
4130 method on save_exprs instead of add.
4132 2019-03-13 Jason Merrill <jason@redhat.com>
4134 PR c++/86521 - C++17 copy elision in initialization by constructor.
4135 * call.c (joust_maybe_elide_copy): New.
4138 2019-03-13 Marek Polacek <polacek@redhat.com>
4140 PR c++/88979 - further P0634 fix for constructors.
4141 * parser.c (cp_parser_decl_specifier_seq): Pass flags to
4142 cp_parser_constructor_declarator_p.
4143 (cp_parser_direct_declarator): Allow missing typename for constructor
4145 (cp_parser_constructor_declarator_p): Add FLAGS parameter. Pass it to
4146 cp_parser_type_specifier.
4148 PR c++/89686 - mixing init-capture and simple-capture in lambda.
4149 * parser.c (cp_parser_lambda_introducer): Give error when combining
4150 init-capture and simple-capture.
4152 PR c++/89660 - bogus error with -Wredundant-move.
4153 * typeck.c (maybe_warn_pessimizing_move): Only accept (T &) &arg
4154 as the std::move's argument. Don't call convert_for_initialization
4155 when warn_redundant_move isn't on.
4157 2019-03-11 Jason Merrill <jason@redhat.com>
4159 PR c++/86521 - wrong overload resolution with ref-qualifiers.
4160 * call.c (build_user_type_conversion_1): Don't use a conversion to a
4161 reference of the wrong rvalueness for direct binding.
4163 2019-03-11 Martin Liska <mliska@suse.cz>
4165 * cvt.c (build_expr_type_conversion): Wrap apostrophes
4166 in gcc internal format with %'.
4167 * decl.c (check_no_redeclaration_friend_default_args): Likewise.
4168 (grokfndecl): Likewise.
4169 * name-lookup.c (do_pushtag): Likewise.
4170 * pt.c (unify_parameter_deduction_failure): Likewise.
4171 (unify_template_deduction_failure): Likewise.
4173 2019-03-11 Martin Liska <mliska@suse.cz>
4175 * call.c (convert_arg_to_ellipsis): Wrap an option name
4176 in a string format message and fix GNU coding style.
4177 (build_over_call): Likewise.
4178 * class.c (check_field_decl): Likewise.
4179 (layout_nonempty_base_or_field): Likewise.
4180 * constexpr.c (cxx_eval_loop_expr): Likewise.
4181 * cvt.c (type_promotes_to): Likewise.
4182 * decl.c (cxx_init_decl_processing): Likewise.
4183 (mark_inline_variable): Likewise.
4184 (grokdeclarator): Likewise.
4185 * decl2.c (record_mangling): Likewise.
4186 * error.c (maybe_warn_cpp0x): Likewise.
4187 * except.c (doing_eh): Likewise.
4188 * mangle.c (maybe_check_abi_tags): Likewise.
4189 * parser.c (cp_parser_diagnose_invalid_type_name): Likewise.
4190 (cp_parser_userdef_numeric_literal): Likewise.
4191 (cp_parser_primary_expression): Likewise.
4192 (cp_parser_unqualified_id): Likewise.
4193 (cp_parser_pseudo_destructor_name): Likewise.
4194 (cp_parser_builtin_offsetof): Likewise.
4195 (cp_parser_lambda_expression): Likewise.
4196 (cp_parser_lambda_introducer): Likewise.
4197 (cp_parser_lambda_declarator_opt): Likewise.
4198 (cp_parser_selection_statement): Likewise.
4199 (cp_parser_init_statement): Likewise.
4200 (cp_parser_decomposition_declaration): Likewise.
4201 (cp_parser_function_specifier_opt): Likewise.
4202 (cp_parser_static_assert): Likewise.
4203 (cp_parser_simple_type_specifier): Likewise.
4204 (cp_parser_namespace_definition): Likewise.
4205 (cp_parser_using_declaration): Likewise.
4206 (cp_parser_ctor_initializer_opt_and_function_body): Likewise.
4207 (cp_parser_initializer_list): Likewise.
4208 (cp_parser_type_parameter_key): Likewise.
4209 (cp_parser_member_declaration): Likewise.
4210 (cp_parser_try_block): Likewise.
4211 (cp_parser_std_attribute_spec): Likewise.
4212 (cp_parser_requires_clause_opt): Likewise.
4213 * pt.c (check_template_variable): Likewise.
4214 (check_default_tmpl_args): Likewise.
4215 (push_tinst_level_loc): Likewise.
4216 (instantiate_pending_templates): Likewise.
4217 (invalid_nontype_parm_type_p): Likewise.
4218 * repo.c (get_base_filename): Likewise.
4219 * rtti.c (typeid_ok_p): Likewise.
4220 (build_dynamic_cast_1): Likewise.
4221 * tree.c (maybe_warn_parm_abi): Likewise.
4223 2019-03-08 Jakub Jelinek <jakub@redhat.com>
4226 * parser.c (cp_parser_template_declaration_after_parameters): Avoid
4227 one space before " at the end of line and another after " on another
4228 line in a string literal.
4230 PR tree-optimization/89550
4231 * semantics.c (maybe_convert_cond): Only set TREE_NO_WARNING if
4232 warning_at returned true.
4233 * decl2.c (c_parse_final_cleanups): Likewise.
4234 * typeck.c (convert_for_assignment): Likewise.
4235 * decl.c (finish_function): Likewise.
4238 * parser.c (cp_parser_asm_definition): Just warn instead of error
4239 on volatile qualifier outside of function body.
4242 * constexpr.c (potential_constant_expression_1): Reject
4243 REINTERPRET_CAST_P NOP_EXPRs.
4246 * call.c (joust): Call print_z_candidate only if pedwarn returned
4249 2019-03-07 Jason Merrill <jason@redhat.com>
4251 PR c++/88123 - lambda and using-directive.
4252 * name-lookup.c (op_unqualified_lookup)
4253 (maybe_save_operator_binding, discard_operator_bindings)
4254 (push_operator_bindings): New.
4255 * typeck.c (build_x_binary_op, build_x_unary_op): Call
4256 maybe_save_operator_binding.
4257 * decl.c (start_preparsed_function): Call push_operator_bindings.
4258 * tree.c (cp_free_lang_data): Call discard_operator_bindings.
4260 PR c++/88820 - ICE with CTAD and member template used in DMI.
4261 * pt.c (do_class_deduction): Handle parm used as its own arg.
4263 2019-03-07 Jakub Jelinek <jakub@redhat.com>
4266 * parser.c (cp_parser_asm_definition): Parse asm qualifiers even
4267 at toplevel, but diagnose them.
4269 2019-03-06 Jason Merrill <jason@redhat.com>
4271 PR c++/89381 - implicit copy and using-declaration.
4272 * class.c (classtype_has_move_assign_or_move_ctor_p): Don't consider
4273 op= brought in by a using-declaration.
4275 2019-03-06 Jakub Jelinek <jakub@redhat.com>
4278 * init.c (build_value_init_noctor): Ignore flexible array members.
4280 2019-03-06 Jason Merrill <jason@redhat.com>
4282 PR c++/89576 - if constexpr of lambda capture.
4283 * semantics.c (maybe_convert_cond): Do convert a non-dependent
4284 condition in a template.
4285 * typeck.c (condition_conversion): Handle being called in a
4288 2019-03-06 Marek Polacek <polacek@redhat.com>
4290 PR c++/87378 - bogus -Wredundant-move warning.
4291 * typeck.c (maybe_warn_pessimizing_move): See if the maybe-rvalue
4292 overload resolution would actually succeed.
4294 2019-03-05 Jason Merrill <jason@redhat.com>
4296 * class.c (is_really_empty_class): Add ignore_vptr parm.
4297 (trivial_default_constructor_is_constexpr): Pass it.
4298 * call.c (build_over_call): Pass it.
4299 * constexpr.c (cxx_eval_constant_expression): Pass it instead of
4300 checking TYPE_POLYMORPHIC_P.
4301 (cxx_eval_component_reference, potential_constant_expression_1):
4303 * cp-gimplify.c (simple_empty_class_p): Pass it.
4304 * init.c (expand_aggr_init_1): Pass it.
4306 2019-03-04 Paolo Carlini <paolo.carlini@oracle.com>
4309 * parser.c (cp_parser_class_head): Reject TYPE_BEING_DEFINED too.
4311 2019-03-04 Jakub Jelinek <jakub@redhat.com>
4314 * call.c (field_in_pset): New function.
4315 (build_aggr_conv): Handle CONSTRUCTOR_IS_DESIGNATED_INIT correctly.
4317 2019-03-02 Jakub Jelinek <jakub@redhat.com>
4320 * cp-tree.h (CONSTRUCTOR_IS_DESIGNATED_INIT): Define.
4321 * parser.c (cp_parser_braced_list): Adjust cp_parser_initializer_list
4322 caller, set CONSTRUCTOR_IS_DESIGNATED_INIT.
4323 (cp_parser_initializer_list): Add designated parameter, set *designated
4324 to a bool whether any designators were parsed.
4325 * decl.c (reshape_init): Copy over CONSTRUCTOR_IS_DESIGNATED_INIT if
4327 * pt.c (tsubst_copy_and_build): Likewise.
4328 * call.c (implicit_conversion): If CONSTRUCTOR_IS_DESIGNATED_INIT,
4329 don't call build_list_conv, nor build_complex_conv, nor attempt to
4330 convert a single element initializer to scalar.
4332 2019-03-01 Marek Polacek <polacek@redhat.com>
4334 PR c++/89537 - missing location for error with non-static member fn.
4335 * call.c (resolve_args): Use EXPR_LOCATION.
4336 * typeck.c (build_class_member_access_expr): Use input_location.
4338 PR c++/89532 - ICE with incomplete type in decltype.
4339 * semantics.c (finish_compound_literal): Return error_mark_node
4340 if digest_init_flags returns error_mark_node.
4342 2019-03-01 Jakub Jelinek <jakub@redhat.com>
4344 Implement P1002R1, Try-catch blocks in constexpr functions
4346 * parser.c (cp_parser_ctor_initializer_opt_and_function_body):
4347 Diagnose constexpr ctor or function with function-try-block with
4348 pedwarn for c++17 and earlier. Formatting fix.
4349 (cp_parser_try_block): Use pedwarn instead of error and only for
4350 c++17 and earlier when try block appears in constexpr function.
4351 * constexpr.c (build_constexpr_constructor_member_initializers):
4352 Handle TRY_BLOCK here instead of erroring on it.
4354 2019-02-28 Jason Merrill <jason@redhat.com>
4356 PR c++/88183 - ICE with .* fold-expression.
4357 * pt.c (fold_expression) [DOTSTAR_EXPR]: Remove special handling.
4359 PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
4360 * class.c, lambda.c, pt.c: Revert earlier change.
4361 * lambda.c (add_capture): Don't special-case capture of dependent
4364 * name-lookup.c (print_binding_level): Print this_entity.
4366 2019-02-27 Marek Polacek <polacek@redhat.com>
4368 PR c++/88857 - ICE with value-initialization of argument in template.
4369 * call.c (convert_like_real): Don't call build_value_init in template.
4371 2019-02-27 Jason Merrill <jason@redhat.com>
4373 PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
4374 * semantics.c (process_outer_var_ref): Do capture dependent vars.
4375 * class.c (finish_struct): Only add TAG_DEFN if T is in
4376 current_function_decl.
4377 * lambda.c (vla_capture_type): Force the capture type out into the
4378 lambda's enclosing function.
4379 (add_capture): Pass in the lambda.
4380 * pt.c (tsubst_lambda_expr): complete_type a VLA capture type.
4382 2019-02-27 Marek Polacek <polacek@redhat.com>
4384 PR c++/89511 - ICE with using-declaration and unscoped enumerator.
4385 * parser.c (cp_parser_using_declaration): For an unscoped enum
4386 only use its context if it's not a function declaration.
4388 2019-02-27 Paolo Carlini <paolo.carlini@oracle.com>
4391 * method.c (process_subob_fn): When maybe_instantiate_noexcept
4392 returns false don't call merge_exception_specifiers.
4394 2019-02-27 Paolo Carlini <paolo.carlini@oracle.com>
4397 * parser.c (cp_parser_noexcept_specification_opt): Return NULL_TREE
4398 for a non-constant parsed expression.
4400 2019-02-26 Jakub Jelinek <jakub@redhat.com>
4403 * constexpr.c (cxx_eval_store_expression): When changing active union
4404 member, set no_zero_init.
4406 2019-02-23 Marek Polacek <polacek@redhat.com>
4408 PR c++/88294 - ICE with non-constant noexcept-specifier.
4409 * pt.c (maybe_instantiate_noexcept): Set up the list of local
4410 specializations. Set current_class_{ptr,ref}.
4412 2019-02-22 David Malcolm <dmalcolm@redhat.com>
4415 * parser.c (cp_parser_unqualified_id): Capture and use locations
4418 2019-02-22 Marek Polacek <polacek@redhat.com>
4420 PR c++/89420 - ICE with CAST_EXPR in explicit-specifier.
4421 * decl.c (build_explicit_specifier): Don't check
4422 processing_template_decl. Call instantiation_dependent_expression_p
4423 instead of value_dependent_expression_p. Call
4424 instantiate_non_dependent_expr_sfinae before
4425 build_converted_constant_expr instead of calling
4426 instantiate_non_dependent_expr after it. Add
4427 processing_template_decl_sentinel.
4429 2019-02-22 Thomas Schwinge <thomas@codesourcery.com>
4431 * parser.c (cp_parser_oacc_simple_clause): Remove parser formal
4432 parameter, move loc formal parameter to the front. Adjust all
4434 (cp_parser_oacc_shape_clause): Add loc formal parameter. Adjust
4437 2019-02-21 Jason Merrill <jason@redhat.com>
4439 PR c++/87685 - generic lambda 'this' capture error.
4440 * lambda.c (lambda_expr_this_capture): Change add_capture_p to int.
4441 (maybe_generic_this_capture): Pass -1.
4443 PR c++/88394 - ICE with VLA init-capture.
4444 * lambda.c (is_normal_capture_proxy): Check DECL_CAPTURED_VARIABLE.
4446 PR c++/88869 - C++17 ICE with CTAD and explicit specialization.
4447 * pt.c (do_class_deduction): Don't include explicit specialization
4450 PR c++/89422 - ICE with -g and lambda in default arg in template.
4451 * pt.c (tsubst_function_decl): SET_DECL_FRIEND_CONTEXT sooner.
4453 2019-02-21 Jason Merrill <jason@redhat.com>
4455 PR c++/88419 - C++17 ICE with class template arg deduction.
4456 * pt.c (make_template_placeholder): Set TYPE_CANONICAL after
4457 CLASS_PLACEHOLDER_TEMPLATE.
4459 2019-02-21 Jakub Jelinek <jakub@redhat.com>
4462 * constexpr.c (struct constexpr_fundef): Add parms and result members.
4463 (retrieve_constexpr_fundef): Adjust for the above change.
4464 (register_constexpr_fundef): Save constexpr body with copy_fn,
4465 temporarily set DECL_CONTEXT on DECL_RESULT before that.
4466 (get_fundef_copy): Change FUN argument to FUNDEF with
4467 constexpr_fundef * type, grab body and parms/result out of
4468 constexpr_fundef struct and temporarily change it for copy_fn calls
4470 (cxx_eval_builtin_function_call): For __builtin_FUNCTION temporarily
4471 adjust current_function_decl from ctx->call context. Test
4472 !potential_constant_expression instead of !is_constant_expression.
4473 (cxx_bind_parameters_in_call): Grab parameters from new_call. Undo
4474 convert_for_arg_passing changes for TREE_ADDRESSABLE type passing.
4475 (cxx_eval_call_expression): Adjust get_fundef_copy caller.
4476 (cxx_eval_conditional_expression): For IF_STMT, allow then or else
4477 operands to be NULL.
4478 (label_matches): Handle BREAK_STMT and CONTINUE_STMT.
4479 (cxx_eval_loop_expr): Add support for FOR_STMT, WHILE_STMT and DO_STMT.
4480 (cxx_eval_switch_expr): Add support for SWITCH_STMT.
4481 (cxx_eval_constant_expression): Handle IF_STMT, FOR_STMT, WHILE_STMT,
4482 DO_STMT, CONTINUE_STMT, SWITCH_STMT, BREAK_STMT and CONTINUE_STMT.
4483 For SIZEOF_EXPR, recurse on the result of fold_sizeof_expr. Ignore
4484 DECL_EXPR with USING_DECL operand.
4485 * lambda.c (maybe_add_lambda_conv_op): Build thisarg using
4486 build_int_cst to make it a valid constant expression.
4488 2019-02-20 Jason Merrill <jason@redhat.com>
4490 PR c++/88690 - C++17 ICE with empty base in aggregate.
4491 * typeck2.c (process_init_constructor_record): Skip trivial
4492 initialization of an empty base.
4494 2019-02-21 Richard Biener <rguenther@suse.de>
4497 * vtable-class-hierarchy.c (vtv_generate_init_routine): Do not
4498 make symtab process new functions here.
4500 2019-02-20 Jason Merrill <jason@redhat.com>
4502 PR c++/87921 - wrong error with inline static data member.
4503 * decl2.c (finish_static_data_member_decl): Don't set DECL_IN_AGGR_P
4504 for a non-template inline variable. Do nothing for an
4505 already-instantiated variable.
4506 (c_parse_final_cleanups): Check DECL_IN_AGGR_P without
4508 * decl.c (check_initializer): Likewise.
4509 (make_rtl_for_nonlocal_decl): Likewise.
4510 * pt.c (instantiate_decl): Likewise.
4511 * typeck2.c (store_init_value): Likewise.
4513 2019-02-20 Jakub Jelinek <jakub@redhat.com>
4516 * decl2.c (c_parse_final_cleanups): Move TREE_ASM_WRITTEN setting
4517 for flag_syntax_only from here...
4518 * semantics.c (expand_or_defer_fn_1): ... here.
4521 * decl.c (maybe_commonize_var): When clearing TREE_PUBLIC and
4522 DECL_COMMON, set DECL_INTERFACE_KNOWN.
4525 * constexpr.c (cxx_eval_store_expression): Diagnose changing of active
4526 union member for -std=c++17 and earlier.
4528 2019-02-19 Jason Merrill <jason@redhat.com>
4530 PR c++/87513 - 'sorry' mangling PMF template-id.
4531 * mangle.c (write_expression): Handle SCOPE_REF to BASELINK.
4533 2019-02-19 Jason Merrill <jason@redhat.com>
4535 PR c++/88380 - wrong-code with flexible array and NSDMI.
4536 * typeck2.c (process_init_constructor_record): Skip flexarrays.
4538 2019-02-20 will wray <wjwray@gmail.com>
4540 PR c++/88572 - wrong handling of braces on scalar init.
4541 * decl.c (reshape_init_r): Allow braces around scalar initializer
4542 within aggregate init. Reject double braced-init of scalar
4545 2019-02-20 Paolo Carlini <paolo.carlini@oracle.com>
4548 * pt.c (tsubst_init): Diagnose an initializer expanding to an
4549 empty list of expressions; tweak wrt dependent types.
4550 (regenerate_decl_from_template): For VAR_DECLs call tsubst_init
4551 instead of tsubst_expr.
4553 2019-02-19 Jason Merrill <jason@redhat.com>
4555 PR c++/88368 - wrong 'use of deleted function'
4556 * method.c (walk_field_subobs): Remember errors from get_nsdmi.
4557 (get_defaulted_eh_spec): Call push_tinst_level.
4558 * pt.c (maybe_instantiate_noexcept): Keep error_mark_node.
4559 * typeck2.c (merge_exception_specifiers): Handle error_mark_node.
4561 2019-02-19 Chung-Lin Tang <cltang@codesourcery.com>
4564 * parser.c (cp_parser_oacc_clause_wait): Add representation of wait
4565 clause without argument as 'wait (GOMP_ASYNC_NOVAL)', adjust comments.
4567 2019-02-19 Jakub Jelinek <jakub@redhat.com>
4570 * lambda.c (maybe_generic_this_capture): Don't check
4571 DECL_NONSTATIC_MEMBER_FUNCTION_P on USING_DECLs.
4574 * typeck.c (build_reinterpret_cast_1): Don't handle void to
4575 && conversion go through build_target_expr_with_type.
4578 * error.c (qualified_name_lookup_error): Only call
4579 suggest_alternative_in_scoped_enum if name is IDENTIFIER_NODE.
4581 2019-02-19 Tom Honermann <tom@honermann.net>
4583 * name-lookup.c (get_std_name_hint): Added u8string as a name hint.
4585 2019-02-18 Jason Merrill <jason@redhat.com>
4587 PR c++/89336 - multiple stores in constexpr stmt.
4588 * constexpr.c (cxx_eval_store_expression): Preevaluate scalar or
4591 * pt.c (check_explicit_specialization): If the declarator is a
4592 template-id, only check whether the arguments are dependent.
4594 Improve duplicate [[likely]] diagnostic.
4595 * parser.c (cp_parser_statement): Make attrs_loc a range. Pass it
4596 to process_stmt_hotness_attribute.
4597 * cp-gimplify.c (process_stmt_hotness_attribute): Take attrs_loc.
4598 (genericize_if_stmt): Use likely/unlikely instead of predictor_name.
4600 2019-02-17 Marek Polacek <polacek@redhat.com>
4602 PR c++/89217 - ICE with list-initialization in range-based for loop.
4603 * constexpr.c (unshare_constructor): No longer static.
4604 * cp-tree.h (unshare_constructor): Declare.
4605 * semantics.c (finish_compound_literal): When dealing with a
4606 non-dependent expression in a template, return the original
4607 expression. Pass LOOKUP_NO_NARROWING to digest_init_flags.
4609 2019-02-13 Marek Polacek <polacek@redhat.com>
4611 PR c++/89297 - ICE with OVERLOAD in template.
4612 * semantics.c (finish_compound_literal): Call
4613 instantiate_non_dependent_expr_sfinae.
4615 2019-02-13 Alexandre Oliva <aoliva@redhat.com>
4618 * cp-tree.h (USING_DECL_SCOPE): Use result rather than type.
4619 * name-lookup.c (strip_using_decl): Use USING_DECL_SCOPE.
4620 * search.c (protected_accessible_p): Follow USING_DECL_DECLS.
4621 (shared_member_p): Likewise.
4622 (lookup_member): Likewise.
4623 * decl.c (grok_special_member_properties): Skip USING_DECLs.
4624 * semantics.c (finish_omp_declare_simd_methods): Likewise.
4625 (finish_qualified_id_expr): Do not call shared_member_p with
4629 * pt.c (tsubst_lambda_expr): Avoid duplicate tsubsting.
4630 Move cp_evaluated resetting before signature tsubsting.
4631 (gen_elem_of_pack_expansion_instantiation): Separate local
4632 specializations per index.
4634 2019-02-13 David Malcolm <dmalcolm@redhat.com>
4637 * class.c (add_method): Drop destructor assertion.
4639 2019-02-13 Paolo Carlini <paolo.carlini@oracle.com>
4642 * decl.c (make_typename_type): Allow for TYPE_PACK_EXPANSION as
4643 context (the first argument).
4644 * pt.c (tsubst, case TYPENAME_TYPE): Handle TYPE_PACK_EXPANSION
4647 2019-02-12 Jason Merrill <jason@redhat.com>
4649 PR c++/89144 - link error with constexpr initializer_list.
4650 * call.c (convert_like_real) [ck_list]: Don't allocate a temporary
4651 array for an empty list.
4652 * typeck2.c (store_init_value): Don't use cxx_constant_init in a
4655 2019-02-11 Jason Merrill <jason@redhat.com>
4657 PR c++/89241 - ICE with __func__ in lambda in template.
4658 * pt.c (enclosing_instantiation_of): Also check
4659 instantiated_lambda_fn_p for the template context.
4661 2019-02-11 Marek Polacek <polacek@redhat.com>
4663 PR c++/89212 - ICE converting nullptr to pointer-to-member-function.
4664 * pt.c (tsubst_copy_and_build) <case CONSTRUCTOR>: Return early for
4665 null member pointer value.
4667 2019-02-11 Jakub Jelinek <jakub@redhat.com>
4670 * pt.c (convert_nontype_argument): Pass true as manifestly_const_eval
4671 to maybe_constant_value calls.
4673 2019-02-11 Marek Polacek <polacek@redhat.com>
4675 * typeck2.c (digest_init_r): Remove commented code.
4677 2019-02-11 Martin Sebor <msebor@redhat.com>
4680 * decl.c (compute_array_index_type_loc): Preserve signed sizes
4681 for diagnostics. Call valid_array_size_p instead of error.
4682 * init.c (build_new_1): Compute size for diagnostic. Call
4683 invalid_array_size_error
4684 (build_new): Call valid_array_size_p instead of error.
4686 2019-02-07 Alexandre Oliva <aoliva@redhat.com>
4689 * call.c (compare_ics): Deal with ck_aggr in either cs.
4691 2019-02-06 David Malcolm <dmalcolm@redhat.com>
4694 * call.c (get_location_for_expr_unwinding_for_system_header): New
4696 (conversion_null_warnings): Use it when getting locations for
4697 EXPR, effectively adding a call to
4698 get_location_for_expr_unwinding_for_system_header for
4699 -Wconversion-null and making use of EXPR_LOCATION for
4700 -Wzero-as-null-pointer-constant.
4702 2019-02-05 Jakub Jelinek <jakub@redhat.com>
4705 * optimize.c (maybe_thunk_body): Clear TREE_ADDRESSABLE on
4706 PARM_DECLs of the thunk.
4707 * lambda.c (maybe_add_lambda_conv_op): Likewise.
4709 2019-02-05 Marek Polacek <polacek@redhat.com>
4711 PR c++/89158 - by-value capture of constexpr variable broken.
4712 * call.c (convert_like_real) <case ck_user>: Call mark_exp_read
4713 instead of mark_rvalue_use.
4715 2019-02-05 Alexandre Oliva <aoliva@redhat.com>
4718 * pt.c (instantiates_primary_template_p): New.
4719 (type_dependent_expression_p): Use it.
4721 2019-02-01 Jason Merrill <jason@redhat.com>
4723 PR c++/88761 - ICE with reference capture of constant.
4724 * lambda.c (mark_const_cap_r): Do walk subtrees of DECL_EXPR for
4727 2019-02-01 Marek Polacek <polacek@redhat.com>
4729 PR c++/88325 - ICE with invalid out-of-line template member definition.
4730 * parser.c (cp_parser_class_name): Don't call make_typename_type
4733 2019-02-01 Jakub Jelinek <jakub@redhat.com>
4736 * parser.c (cp_parser_gnu_attributes_opt): Set ok to false
4737 if require_open failed.
4739 2019-01-31 Marek Polacek <polacek@redhat.com>
4741 PR c++/89083, c++/80864 - ICE with list initialization in template.
4742 * constexpr.c (adjust_temp_type): Use copy_node and change the type
4743 instead of using build_constructor.
4744 * decl.c (reshape_init_r): Don't reshape a digested initializer.
4745 Return the initializer for COMPOUND_LITERAL_P.
4747 PR c++/88983 - ICE with switch in constexpr function.
4748 * constexpr.c (cxx_eval_switch_expr): Use SWITCH_COND and SWITCH_BODY.
4749 (cxx_eval_constant_expression) <case COND_EXPR>: Don't look for the
4750 label in the else branch if we found it in the then branch.
4752 2019-01-30 Jason Merrill <jason@redhat.com>
4754 PR c++/88752 - ICE with lambda and constexpr if.
4755 * cp-tree.h (LAMBDA_EXPR_INSTANTIATED): New.
4756 * pt.c (tsubst_lambda_expr): Set it.
4757 (instantiated_lambda_fn_p): Check it.
4758 (enclosing_instantiation_of): Use it.
4760 2019-01-31 Jakub Jelinek <jakub@redhat.com>
4763 * cxx-pretty-print.c (pp_cxx_enumeration_constant): Print always as
4764 a C cast in pp_c_flag_gnu_v3 mode.
4766 2019-01-30 Jakub Jelinek <jakub@redhat.com>
4769 * lambda.c (is_capture_proxy): Don't return true for
4770 DECL_OMP_PRIVATIZED_MEMBER artificial vars.
4772 2019-01-30 Marek Polacek <polacek@redhat.com>
4774 PR c++/89119 - ICE with value-initialization in template.
4775 * pt.c (tsubst_copy_and_build): Handle RANGE_EXPR.
4777 2019-01-29 Jason Merrill <jason@redhat.com>
4779 PR c++/86943 - wrong code converting lambda to function pointer.
4780 * lambda.c (maybe_add_lambda_conv_op): Use a template-id in the
4781 call. Only forward parms for decltype.
4782 * pt.c (tsubst_copy_and_build) [CALL_EXPR]: Handle CALL_FROM_THUNK_P
4784 * typeck.c (check_return_expr): Don't mess with a thunk call.
4786 2019-01-28 Jason Merrill <jason@redhat.com>
4788 PR c++/89089 - ICE with [[no_unique_address]].
4789 PR c++/88865 - wrong layout with [[no_unique_address]].
4790 * class.c (check_field_decls): A potentially-overlapping field makes
4791 the class non-layout-POD, but not non-empty.
4792 (end_of_class): Always consider empty data members.
4793 (layout_class_type): Set DECL_SIZE for empty fields.
4795 2019-01-28 Marek Polacek <polacek@redhat.com>
4797 PR c++/88358 - name wrongly treated as type.
4798 * parser.c (cp_parser_direct_declarator): Don't assume a qualified-id
4799 in parameter-list is a type if the function's declarator-id is not
4802 2019-01-27 Marek Polacek <polacek@redhat.com>
4804 PR c++/88815 - narrowing conversion lost in decltype.
4805 PR c++/78244 - narrowing conversion in template not detected.
4806 * cp-tree.h (CONSTRUCTOR_IS_DEPENDENT): New.
4807 * pt.c (instantiation_dependent_r): Consider a CONSTRUCTOR with
4808 CONSTRUCTOR_IS_DEPENDENT instantiation-dependent.
4809 * semantics.c (finish_compound_literal): When the compound literal
4810 isn't instantiation-dependent and the type isn't type-dependent,
4811 fall back to the normal processing. Set CONSTRUCTOR_IS_DEPENDENT.
4813 PR c++/89024 - ICE with incomplete enum type.
4814 * call.c (standard_conversion): When converting an
4815 ARITHMETIC_TYPE_P to an incomplete type, return NULL.
4817 2019-01-25 Paolo Carlini <paolo.carlini@oracle.com>
4820 * call.c (build_op_delete_call): Implement 7.6.2.5/(10.1).
4821 * decl2.c (coerce_delete_type): Use build_pointer_type instead
4824 2019-01-24 Jason Merrill <jason@redhat.com>
4826 PR c++/89001 - mangling of reference temporaries
4827 * cp-tree.h (struct saved_scope): Add ref_temp_count.
4828 (current_ref_temp_count): New macro.
4829 * mangle.c (mangle_ref_init_variable): Use it.
4830 * typeck2.c (store_init_value): Clear it.
4831 * call.c (make_temporary_var_for_ref_to_temp): Copy public and
4834 2019-01-24 Jakub Jelinek <jakub@redhat.com>
4837 * semantics.c (finish_omp_cancel): Diagnose more than one if
4838 on #pragma omp cancel with different modifiers. Use
4839 maybe_convert_cond when not in template or build_x_binary_op
4842 2019-01-23 Marek Polacek <polacek@redhat.com>
4844 PR c++/88757 - qualified name treated wrongly as type.
4845 * parser.c (cp_parser_direct_declarator): Don't treat qualified-ids
4846 in parameter-list as types if name lookup for declarator-id didn't
4847 find one or more function templates.
4849 2019-01-23 Jakub Jelinek <jakub@redhat.com>
4852 * cp-gimplify.c (genericize_cp_loop): Call begin_bc_block only
4853 after genericizing cond and incr expressions.
4856 * cp-gimplify.c (genericize_switch_stmt): Move cond genericization
4857 before the begin_bc_block call.
4859 2019-01-21 Jason Merrill <jason@redhat.com>
4861 PR c++/87893 - constexpr ctor ICE on ARM.
4862 PR c++/88293 - ICE with comma expression.
4863 * constexpr.c (initialized_type): Don't shortcut non-void type.
4864 Handle COMPOUND_EXPR.
4865 (cxx_eval_outermost_constant_expr): Return early for void type.
4867 2019-01-21 Jakub Jelinek <jakub@redhat.com>
4870 * optimize.c (cxx_copy_decl): New function.
4871 (clone_body): Use it instead of copy_decl_no_change.
4874 * typeck.c (cp_build_binary_op): Don't instrument
4875 SANITIZE_POINTER_COMPARE if processing_template_decl.
4876 (pointer_diff): Similarly for SANITIZE_POINTER_SUBTRACT.
4878 2019-01-18 Jason Merrill <jason@redhat.com>
4880 PR c++/88875 - error with explicit list constructor.
4881 * call.c (reference_binding): Don't modify EXPR. Set
4882 need_temporary_p on the ck_user conversion for a temporary.
4883 (convert_like_real): Check it.
4885 2019-01-18 H.J. Lu <hongjiu.lu@intel.com>
4889 * call.c (convert_for_arg_passing): Upate the
4890 warn_for_address_or_pointer_of_packed_member call.
4891 * typeck.c (convert_for_assignment): Likewise.
4893 2019-01-17 Jason Merrill <jason@redhat.com>
4895 PR c++/86205 - ICE with ?: of throw and template-id.
4896 * pt.c (resolve_nondeduced_context_or_error): Split out from...
4897 * typeck.c (decay_conversion): ...here.
4898 * call.c (build_conditional_expr_1): Use it.
4900 PR c++/86740, ICE with constexpr if and nested generic lambdas.
4901 * tree.c (cp_walk_subtrees): Handle LAMBDA_EXPR.
4903 2019-01-17 Paolo Carlini <paolo.carlini@oracle.com>
4905 * decl.c (grokdeclarator): Use typespec_loc in error messages
4906 about 'auto' and trailing return type.
4908 2019-01-17 David Malcolm <dmalcolm@redhat.com>
4911 * class.c (add_method): Don't use DECL_DESTRUCTOR_P on
4914 2019-01-17 Nathan Sidwell <nathan@acm.org>
4917 * semantics.c (process_outer_var_ref): Only skip dependent types
4920 2019-01-17 Alexandre Oliva <aoliva@redhat.com>
4923 * cp-tree.h (saved_scope): Add suppress_location_wrappers.
4924 * name-lookup.c (do_push_to_top_level): Save and reset it.
4925 (do_pop_from_top_level): Restore it.
4928 * pt.c (make_template_placeholder): Use auto_identifier.
4929 (is_auto): Drop CLASS_PLACEHOLDER_TEMPLATE test.
4930 * error.c (dump_type): Handle template placeholders.
4931 * cxx-pretty-print.c (pp_cx_unqualified_id): Likewise.
4934 * cvt.c (convert_to_void): Handle all cdtor calls as if
4937 2019-01-16 Paolo Carlini <paolo.carlini@oracle.com>
4939 * decl.c (grokdeclarator): Use locations[ds_storage_class] in
4940 error messages about ill-formed uses of mutable.
4942 2019-01-16 Marek Polacek <polacek@redhat.com>
4944 PR c++/78244 - narrowing conversion in template not detected.
4945 * call.c (perform_implicit_conversion_flags): Set
4946 IMPLICIT_CONV_EXPR_BRACED_INIT.
4947 * cp-tree.h (IMPLICIT_CONV_EXPR_BRACED_INIT): New.
4948 * pt.c (tsubst_copy_and_build): Use it.
4950 2019-01-15 David Malcolm <dmalcolm@redhat.com>
4953 * pt.c (build_deduction_guide): Bail out if tsubst_arg_types
4956 2019-01-15 Paolo Carlini <paolo.carlini@oracle.com>
4958 * decl.c (start_decl): Improve error location.
4959 * decl2.c (grokfield): Likewise.
4961 2019-01-15 Paolo Carlini <paolo.carlini@oracle.com>
4963 * decl.c (grokdeclarator): Move further up the location_t loc
4964 declaration and use the location when building a TYPE_DECL for
4966 * decl2.c (grokbitfield): Use DECL_SOURCE_LOCATION in the error
4967 about an ill-formed bit-field as typedef.
4969 2019-01-14 Marek Polacek <polacek@redhat.com>
4971 PR c++/88830 - ICE with abstract class.
4972 * decl2.c (maybe_emit_vtables): Check CLASSTYPE_LAZY_DESTRUCTOR.
4975 PR c++/88825 - ICE with bogus function return type deduction.
4976 * typeck.c (can_do_nrvo_p): Check error_mark_node.
4978 2019-01-14 Tom Honermann <tom@honermann.net>
4980 Implement P0482R5, char8_t: A type for UTF-8 characters and strings
4981 * cvt.c (type_promotes_to): Handle char8_t promotion.
4982 * decl.c (grokdeclarator): Handle invalid type specifier
4983 combinations involving char8_t.
4984 * lex.c (init_reswords): Add char8_t as a reserved word.
4985 * mangle.c (write_builtin_type): Add name mangling for char8_t (Du).
4986 * parser.c (cp_keyword_starts_decl_specifier_p)
4987 (cp_parser_simple_type_specifier): Recognize char8_t as a simple
4989 (cp_parser_string_literal): Use char8_array_type_node for the type
4991 (cp_parser_set_decl_spec_type): Tolerate char8_t typedefs in system
4993 * rtti.c (emit_support_tinfos): type_info support for char8_t.
4994 * tree.c (char_type_p): Recognize char8_t as a character type.
4995 * typeck.c (string_conv_p): Handle conversions of u8 string
4996 literals of char8_t type.
4997 (check_literal_operator_args): Handle UDLs with u8 string literals
4999 * typeck2.c (ordinary_char_type_p): New.
5000 (digest_init_r): Disallow initializing a char array with a u8 string
5003 2019-01-14 Martin Liska <mliska@suse.cz>
5005 PR gcov-profile/88263
5006 * decl2.c (get_tls_wrapper_fn): Use DECL_SOURCE_LOCATION
5007 as location of the TLS wrapper.
5009 2019-01-12 Paolo Carlini <paolo.carlini@oracle.com>
5011 * decl.c (cp_finish_decl): Improve error location.
5012 * decl2.c (grokfield): Likewise, improve two locations.
5014 2019-01-11 Marek Polacek <polacek@redhat.com>
5016 PR c++/88692, c++/87882 - -Wredundant-move false positive with *this.
5017 * typeck.c (maybe_warn_pessimizing_move): Return if ARG isn't
5020 2019-01-11 Jason Merrill <jason@redhat.com>
5022 PR c++/88312 - pack expansion of decltype.
5023 * pt.c (instantiation_dependent_r): A template non-type parameter
5024 pack is instantiation-dependent.
5026 2019-01-11 Jason Merrill <jason@redhat.com>
5028 PR c++/88613 - ICE with use of const var in lambda.
5029 * expr.c (mark_use): Fix location wrapper handling.
5030 * cp-gimplify.c (cp_fold_maybe_rvalue): Call mark_rvalue_use.
5032 2019-01-11 Tobias Burnus <burnus@net-b.de>
5035 * decl2.c (maybe_emit_vtables): If needed, generate code for
5036 the destructor of an abstract class.
5037 (mark_used): Update comment for older function-name change.
5039 2019-01-11 Paolo Carlini <paolo.carlini@oracle.com>
5041 * decl.c (start_decl): Improve error location.
5042 (grokdeclarator): Likewise, improve two locations.
5044 2019-01-09 Sandra Loosemore <sandra@codesourcery.com>
5048 * cp-tree.h: Mechanically replace "can not" with "cannot".
5049 * parser.c: Likewise.
5052 2019-01-08 Paolo Carlini <paolo.carlini@oracle.com>
5054 * decl.c (grok_reference_init): Improve error location.
5055 (grokdeclarator): Likewise, improve two locations.
5057 2019-01-08 Marek Polacek <polacek@redhat.com>
5059 PR c++/88538 - braced-init-list in template-argument-list.
5060 * parser.c (cp_parser_template_argument): Handle braced-init-list when
5063 PR c++/88548 - this accepted in static member functions.
5064 * parser.c (cp_debug_parser): Adjust printing of
5065 local_variables_forbidden_p.
5066 (cp_parser_new): Set local_variables_forbidden_p to 0 rather than false.
5067 (cp_parser_primary_expression): When checking
5068 local_variables_forbidden_p, use THIS_FORBIDDEN or
5069 LOCAL_VARS_FORBIDDEN.
5070 (cp_parser_lambda_body): Update the type of
5071 local_variables_forbidden_p. Set it to 0 rather than false.
5072 (cp_parser_condition): Adjust call to cp_parser_declarator.
5073 (cp_parser_explicit_instantiation): Likewise.
5074 (cp_parser_init_declarator): Likewise.
5075 (cp_parser_declarator): New parameter. Use it.
5076 (cp_parser_direct_declarator): New parameter. Use it to set
5077 local_variables_forbidden_p. Adjust call to cp_parser_declarator.
5078 (cp_parser_type_id_1): Adjust call to cp_parser_declarator.
5079 (cp_parser_parameter_declaration): Likewise.
5080 (cp_parser_default_argument): Update the type of
5081 local_variables_forbidden_p. Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
5083 (cp_parser_member_declaration): Tell cp_parser_declarator if we saw
5084 'static' or 'friend'.
5085 (cp_parser_exception_declaration): Adjust call to cp_parser_declarator.
5086 (cp_parser_late_parsing_default_args): Update the type of
5087 local_variables_forbidden_p. Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
5089 (cp_parser_cache_defarg): Adjust call to cp_parser_declarator.
5090 (cp_parser_objc_class_ivars): Likewise.
5091 (cp_parser_objc_struct_declaration): Likewise.
5092 (cp_parser_omp_for_loop_init): Likewise.
5093 * parser.h (cp_parser): Change the type of local_variables_forbidden_p
5095 (LOCAL_VARS_FORBIDDEN, LOCAL_VARS_AND_THIS_FORBIDDEN, THIS_FORBIDDEN):
5098 2019-01-08 Paolo Carlini <paolo.carlini@oracle.com>
5100 * decl.c (start_decl): Improve permerror location.
5102 2019-01-08 Jonathan Wakely <jwakely@redhat.com>
5103 Jakub Jelinek <jakub@redhat.com>
5106 * decl.c (finish_function): For -Wreturn-type don't add a return *this;
5107 fixit hint if current_class_ref is NULL. Use a single if instead of
5110 2019-01-07 Paolo Carlini <paolo.carlini@oracle.com>
5112 * decl.c (start_decl): Improve two error_at locations.
5113 (expand_static_init): Likewise.
5115 2019-01-07 Marek Polacek <polacek@redhat.com>
5117 PR c++/88741 - wrong error with initializer-string.
5118 * decl.c (cp_complete_array_type): Strip any location wrappers.
5120 2019-01-07 Bernd Edlinger <bernd.edlinger@hotmail.de>
5126 * cp-tree.h (LOOKUP_ALLOW_FLEXARRAY_INIT): New flag value.
5127 * typeck2.c (digest_init_r): Raise an error for non-static
5128 initialization of a flexible array member.
5129 (process_init_constructor, massage_init_elt,
5130 process_init_constructor_array, process_init_constructor_record,
5131 process_init_constructor_union, process_init_constructor): Add the
5132 flags parameter and pass it thru.
5133 (store_init_value): Pass LOOKUP_ALLOW_FLEXARRAY_INIT parameter to
5134 digest_init_flags for static decls.
5136 2019-01-07 Jakub Jelinek <jakub@redhat.com>
5139 * cp-tree.h (cp_build_vec_convert): Declare.
5140 * parser.c (cp_parser_postfix_expression): Parse
5141 __builtin_convertvector.
5142 * constexpr.c: Include fold-const-call.h.
5143 (cxx_eval_internal_function): Handle IFN_VEC_CONVERT.
5144 (potential_constant_expression_1): Likewise.
5145 * semantics.c (cp_build_vec_convert): New function.
5146 * pt.c (tsubst_copy_and_build): Handle CALL_EXPR to
5149 2019-01-03 Jakub Jelinek <jakub@redhat.com>
5152 * decl.c (builtin_function_1): Return result of pushdecl_top_level
5153 or pushdecl rather than decl.
5155 2019-01-03 Paolo Carlini <paolo.carlini@oracle.com>
5157 * tree.c (handle_nodiscard_attribute): Improve warning location.
5159 2019-01-02 Marek Polacek <polacek@redhat.com>
5161 PR c++/88612 - ICE with -Waddress-of-packed-member.
5162 * call.c (convert_for_arg_passing): Only give warnings with tf_warning.
5163 * typeck.c (convert_for_assignment): Likewise.
5165 PR c++/88631 - CTAD failing for value-initialization.
5166 * typeck2.c (build_functional_cast): Try deducing the template
5167 arguments even if there are no arguments to deduce from.
5169 2019-01-01 Jakub Jelinek <jakub@redhat.com>
5171 Update copyright years.
5173 Copyright (C) 2019 Free Software Foundation, Inc.
5175 Copying and distribution of this file, with or without modification,
5176 are permitted in any medium without royalty provided the copyright
5177 notice and this notice are preserved.