1 2019-11-06 Jason Merrill <jason@redhat.com>
3 C++20 NB CA378 - Remove constrained non-template functions.
4 * decl.c (grokfndecl): Reject constraints on non-templated function.
6 2019-11-06 Matthias Kretz <m.kretz@gsi.de>
8 * parser.c (cp_parser_operator): Parse operator?: as an
9 attempt to overload the conditional operator.
11 2019-11-05 Jason Merrill <jason@redhat.com>
13 Implement C++20 operator<=>.
14 * cp-tree.h (struct lang_decl_fn): Add maybe_deleted bitfield.
15 (DECL_MAYBE_DELETED): New.
16 (enum special_function_kind): Add sfk_comparison.
17 (LOOKUP_REWRITTEN, LOOKUP_REVERSED): New.
18 * call.c (struct z_candidate): Add rewritten and reversed methods.
19 (add_builtin_candidate): Handle SPACESHIP_EXPR.
20 (add_builtin_candidates): Likewise.
21 (add_candidates): Don't add a reversed candidate if the parms are
23 (add_operator_candidates): Split out from build_new_op_1. Handle
24 rewritten and reversed candidates.
25 (add_candidate): Swap conversions of reversed candidate.
26 (build_new_op_1): Swap them back. Build a second operation for
28 (extract_call_expr): Handle rewritten calls.
29 (same_fn_or_template): New.
30 (joust): Handle rewritten and reversed candidates.
31 * class.c (add_implicitly_declared_members): Add implicit op==.
32 (classtype_has_op, classtype_has_defaulted_op): New.
33 * constexpr.c (cxx_eval_binary_expression): Handle SPACESHIP_EXPR.
34 (cxx_eval_constant_expression, potential_constant_expression_1):
36 * cp-gimplify.c (genericize_spaceship): New.
37 (cp_genericize_r): Use it.
38 * cp-objcp-common.c (cp_common_init_ts): Handle SPACESHIP_EXPR.
39 * decl.c (finish_function): Handle deleted function.
40 * decl2.c (grokfield): SET_DECL_FRIEND_CONTEXT on defaulted friend.
41 (mark_used): Check DECL_MAYBE_DELETED. Remove assumption that
42 defaulted functions are non-static members.
43 * error.c (dump_expr): Handle SPACESHIP_EXPR.
44 * method.c (type_has_trivial_fn): False for sfk_comparison.
45 (enum comp_cat_tag, struct comp_cat_info_t): New types.
46 (comp_cat_cache): New array variable.
47 (lookup_comparison_result, lookup_comparison_category)
48 (is_cat, cat_tag_for, spaceship_comp_cat)
49 (spaceship_type, genericize_spaceship)
50 (common_comparison_type, early_check_defaulted_comparison)
51 (comp_info, build_comparison_op): New.
52 (synthesize_method): Handle sfk_comparison. Handle deleted.
53 (get_defaulted_eh_spec, maybe_explain_implicit_delete)
54 (explain_implicit_non_constexpr, implicitly_declare_fn)
55 (defaulted_late_check, defaultable_fn_check): Handle sfk_comparison.
56 * name-lookup.c (get_std_name_hint): Add comparison categories.
57 * tree.c (special_function_p): Add sfk_comparison.
58 * typeck.c (cp_build_binary_op): Handle SPACESHIP_EXPR.
60 2019-11-05 Tim van Deurzen <tim@kompiler.org>
62 Add new tree code for the spaceship operator.
63 * cp-tree.def: Add new tree code.
64 * operators.def: New binary operator.
65 * parser.c: Add new token and tree code.
67 2019-09-15 Jason Merrill <jason@redhat.com>
69 * call.c (build_new_op_1): Don't apply any standard conversions to
70 the operands of a built-in operator. Don't suppress conversions in
72 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
74 2019-11-04 Jason Merrill <jason@redhat.com>
76 Use vec instead of raw array for built-in candidates.
77 * call.c (build_builtin_candidate): Take args in a vec.
78 (add_builtin_candidate, add_builtin_candidates): Likewise.
79 (build_conditional_expr_1, build_new_op_1): Adjust.
81 2019-11-04 Jason Merrill <jason@redhat.com>
83 * constexpr.c (explain_invalid_constexpr_fn): Show location of fn.
85 * pt.c (maybe_instantiate_noexcept): Only update clones if we
88 * typeck.c (contextual_conv_bool): New.
90 * name-lookup.c (lookup_qualified_name): Add wrapper overload taking
91 C string rather than identifier.
92 * parser.c (cp_parser_userdef_numeric_literal): Use it.
93 * rtti.c (emit_support_tinfos): Use it.
94 * cp-tree.h (ovl_op_identifier): Change to inline functions.
95 (build_x_binary_op): Add wrapper with fewer parms.
97 2019-11-05 Jason Merrill <jason@redhat.com>
99 * decl2.c (mark_used): Diagnose use of a function with unsatisfied
101 * typeck.c (cp_build_function_call_vec): Not here.
103 2019-11-05 Nathan Sidwell <nathan@acm.org>
106 * parser.c (cp_parser_error_1): Check EOF and UNKNOWN_LOCATION
107 when skipping over version control marker.
109 2019-11-05 Jakub Jelinek <jakub@redhat.com>
112 * constexpr.c (potential_constant_expression_1): Return true rather
113 than false for PREDICT_EXPR.
115 * decl.c (omp_declare_variant_finalize_one): Call
116 declare_simd_adjust_this not just on the context, but also on the
117 variant-id expression for methods. Don't call
118 cp_get_callee_fndecl_nofold, call cp_get_callee and only if it is
119 safe cp_get_fndecl_from_callee. Don't try to print as %qD
121 * pt.c (tsubst_attribute): Handle "omp declare variant base"
123 (tsubst_function_decl): Call omp_declare_variant_finalize
124 if there are any "omp declare variant base" attributes left.
126 2019-11-04 Kamlesh Kumar <kamleshbhalui@gmail.com>
128 PR c++/91979 - mangling nullptr expression
129 * mangle.c (write_template_arg_literal): Handle nullptr
132 2019-11-04 Jason Merrill <jason@redhat.com>
134 * typeck.c (check_return_expr): Avoid redundant error.
136 2019-11-02 Paolo Carlini <paolo.carlini@oracle.com>
138 * typeck.c (composite_pointer_type): Add a const op_location_t&
139 parameter and use it in diagnostics.
140 (composite_pointer_error): Likewise.
141 (composite_pointer_type_r): Add a const op_location_t&
142 parameter and forward it.
143 (cp_build_binary_op): Adjust calls.
144 (common_pointer_type): Likewise.
145 * call.c (add_builtin_candidate): Likewise.
146 (build_conditional_expr_1): Likewise.
147 * cp-tree.h (composite_pointer_type): Update declaration.
149 * typeck.c (cxx_sizeof_expr): Use cp_expr_loc_or_input_loc
151 (cxx_alignof_expr): Likewise.
152 (lvalue_or_else): Likewise.
154 2019-11-02 Jakub Jelinek <jakub@redhat.com>
156 * decl.c (omp_declare_variant_finalize_one): Use
157 omp_get_context_selector instead of c_omp_get_context_selector.
160 * parser.c (cp_parser_decl_specifier_seq): Don't parse attributes
161 if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR.
163 PR c++/88335 - Implement P1073R3: Immediate functions
164 * cp-tree.h (struct lang_decl_fn): Add immediate_fn_p bit.
165 (DECL_IMMEDIATE_FUNCTION_P, SET_DECL_IMMEDIATE_FUNCTION_P): Define.
166 (enum cp_decl_spec): Add ds_consteval.
167 (fold_non_dependent_expr): Add another tree argument defaulted to
169 * name-lookup.h (struct cp_binding_level): Add immediate_fn_ctx_p
171 * parser.c (cp_keyword_starts_decl_specifier_p): Adjust comments
172 for C++11 and C++20 specifiers. Handle RID_CONSTEVAL.
173 (CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR): Adjust comment.
174 (CP_PARSER_FLAGS_CONSTEVAL): New.
175 (cp_parser_skip_balanced_tokens): New forward declaration.
176 (cp_parser_lambda_declarator_opt): Handle ds_consteval. Set
177 current_binding_level->immediate_fn_ctx_p before parsing parameter
178 list if decl-specifier-seq contains consteval specifier.
179 (cp_parser_decl_specifier_seq): Handle RID_CONSTEVAL.
180 (cp_parser_explicit_instantiation): Diagnose explicit instantiation
181 with consteval specifier.
182 (cp_parser_init_declarator): For consteval or into flags
183 CP_PARSER_FLAGS_CONSTEVAL.
184 (cp_parser_direct_declarator): If CP_PARSER_FLAGS_CONSTEVAL, set
185 current_binding_level->immediate_fn_ctx_p in the sk_function_parms
187 (set_and_check_decl_spec_loc): Add consteval entry, formatting fix.
188 * call.c (build_addr_func): For direct calls to immediate functions
189 use build_address rather than decay_conversion.
190 (build_over_call): Evaluate immediate function invocations.
191 * error.c (dump_function_decl): Handle DECL_IMMEDIATE_FUNCTION_P.
192 * semantics.c (expand_or_defer_fn_1): Use tentative linkage and don't
193 call mark_needed for immediate functions.
194 * typeck.c (cxx_sizeof_or_alignof_expr): Likewise. Formatting fix.
195 (cp_build_addr_expr_1): Reject taking address of immediate function
196 outside of immediate function.
197 * decl.c (validate_constexpr_redeclaration): Diagnose consteval
198 vs. non-consteval or vice versa redeclaration. Use
199 SET_DECL_IMMEDIATE_FUNCTION_P if new_decl is immediate function.
200 (check_tag_decl): Use %qs with keyword string to simplify translation.
202 (start_decl): Adjust diagnostics for static or thread_local variables
203 in immediate functions.
204 (grokfndecl): Call sorry_at on virtual consteval. Use %qs with keyword
205 to string to simplify translation. Diagnose consteval main. Use
206 SET_DECL_IMMEDIATE_FUNCTION_P for consteval.
207 (grokdeclarator): Handle consteval. Use %qs with keyword strings to
208 simplify translation. Use separate ifs instead of chained else if
209 for invalid specifiers. For constinit clear constinit_p rather than
211 * constexpr.c (find_immediate_fndecl): New function.
212 (cxx_eval_outermost_constant_expr): Allow consteval calls returning
213 void. Diagnose returning address of immediate function from consteval
215 (fold_non_dependent_expr_template): Add OBJECT argument, pass it
216 through to cxx_eval_outermost_constant_expr.
217 (fold_non_dependent_expr): Add OBJECT argument, pass it through to
218 fold_non_dependent_expr_template.
219 (fold_non_dependent_init): Adjust fold_non_dependent_expr_template
221 * method.c (defaulted_late_check): Adjust diagnostics for consteval.
222 * lambda.c (maybe_add_lambda_conv_op): Copy over
223 DECL_DECLARED_CONSTEXPR_P and DECL_IMMEDIATE_FUNCTION_P bits from
224 callop to both artificial functions.
225 * init.c (build_value_init): Don't do further processing if
226 build_special_member_call returned a TREE_CONSTANT. Formatting fix.
228 PR c++/91369 - Implement P0784R7: constexpr new
229 * cp-tree.h (CALL_FROM_NEW_OR_DELETE_P): Define.
230 * init.c (build_new_1, build_vec_delete_1, build_delete): Set
231 CALL_FROM_NEW_OR_DELETE_P on the CALL_EXPR to allocator functions.
232 * constexpr.c (is_std_allocator_allocate): Only allow
233 global replaceable allocator functions if CALL_FROM_NEW_OR_DELETE_P
234 or in std::allocate<T>::{,de}allocate.
235 (potential_constant_expression_1): Likewise.
237 2019-11-01 Nathan Sidwell <nathan@acm.org>
239 * class.c (check_field_decls): Refactor.
241 2019-10-31 Jakub Jelinek <jakub@redhat.com>
244 * cp-tree.h (type_initializer_zero_p): Declare.
245 * decl.c (reshape_init_array_1): Formatting fix.
246 * tree.c (type_initializer_zero_p): New function. Moved from
247 ../tree.c, use next_initializable_field, formatting fix. Return
248 false for TYPE_NON_AGGREGATE_CLASS types.
250 2019-10-30 Jason Merrill <jason@redhat.com>
252 PR c++/92268 - hard error satisfying return-type-requirement
253 * constraint.cc (type_deducible_p): Check for substitution failure.
254 (diagnose_compound_requirement): Adjust diagnostic.
255 * pt.c (do_auto_deduction): Don't pass cargs to
256 constraints_satisfied_p.
258 2019-10-30 Jakub Jelinek <jakub@redhat.com>
260 PR c++/91369 - Implement P0784R7: constexpr new
261 * constexpr.c (cxx_replaceable_global_alloc_fn): Don't return true
263 (cxx_placement_new_fn, is_std_construct_at): New functions.
264 (cxx_eval_call_expression): Allow placement new in std::construct_at.
265 (potential_constant_expression_1): Likewise.
267 * typeck.c (decl_in_std_namespace_p): Return true also for decls
268 in inline namespaces inside of std namespace.
270 2019-10-30 Bernd Edlinger <bernd.edlinger@hotmail.de>
273 * name-lookup.c (check_local_shadow): Shadowing TYPE_DECLs
274 is always a -Wshadow=compatible-local warning, unless
277 2019-10-30 Jason Merrill <jason@redhat.com>
279 * cxx-pretty-print.c (get_fold_operator): Use OVL_OP_INFO.
281 2019-10-30 Marek Polacek <polacek@redhat.com>
283 PR c++/92134 - constinit malfunction in static data member.
284 * decl2.c (grokfield): Set LOOKUP_CONSTINIT.
286 2019-10-30 Jakub Jelinek <jakub@redhat.com>
288 * cp-tree.h (omp_declare_variant_finalize, build_local_temp): Declare.
289 * decl.c: Include omp-general.h.
290 (declare_simd_adjust_this): Add forward declaration.
291 (omp_declare_variant_finalize_one, omp_declare_variant_finalize): New
293 (cp_finish_decl, finish_function): Call omp_declare_variant_finalize.
294 * parser.c (cp_finish_omp_declare_variant): Adjust parsing of the
295 variant id-expression and propagate enough information to
296 omp_declare_variant_finalize_one in the attribute so that it can
298 * class.c (finish_struct): Call omp_declare_variant_finalize.
299 * tree.c (build_local_temp): No longer static, remove forward
302 2019-10-30 Paolo Carlini <paolo.carlini@oracle.com>
304 * typeck.c (cp_build_modify_expr): Prefer error + inform to
305 error + error in one place.
306 (get_delta_difference_1): Likewise.
307 (get_delta_difference): Likewise, in two places.
309 2019-10-29 Paolo Carlini <paolo.carlini@oracle.com>
311 * typeck.c (build_x_unary_op): Use the location_t argument in
314 2019-10-29 Marek Polacek <polacek@redhat.com>
316 PR c++/90998 - ICE with copy elision in init by ctor and -Wconversion.
317 * call.c (joust): Don't attempt to warn if ->second_conv is null.
319 2019-10-29 Jakub Jelinek <jakub@redhat.com>
322 * cp-gimplify.c (cp_gimplify_expr): If gimplify_to_rvalue changes the
323 function pointer type, re-add cast to the original one.
325 2019-10-29 Marek Polacek <polacek@redhat.com>
327 PR c++/91548 - fix detecting modifying const objects for ARRAY_REF.
328 * constexpr.c (cxx_eval_store_expression): Don't call
329 modifying_const_object_p for ARRAY_REF.
331 2019-10-29 Richard Sandiford <richard.sandiford@arm.com>
333 * cp-objcp-common.h (cxx_simulate_enum_decl): Declare.
334 (LANG_HOOKS_SIMULATE_ENUM_DECL): Define to the above.
335 * decl.c (cxx_simulate_enum_decl): New function.
337 2019-10-29 Richard Sandiford <richard.sandiford@arm.com>
339 * cp-tree.h (cxx_simulate_builtin_function_decl): Declare.
340 * decl.c (cxx_simulate_builtin_function_decl): New function.
341 * cp-objcp-common.h (LANG_HOOKS_SIMULATE_BUILTIN_FUNCTION_DECL):
344 2019-10-28 Martin Sebor <msebor@redhat.com>
347 * cp-objcp-common.c (names_builtin_p): Define new function.
349 2019-10-28 Nathan Sidwell <nathan@acm.org>
351 * parser.h (struct cp_token): Drop {ENUM,BOOL}_BITFIELD C-ism.
352 Add tree_check_p flag, use as nested union discriminator.
353 (struct cp_lexer): Add saved_type & saved_keyword fields.
354 * parser.c (eof_token): Delete.
355 (cp_lexer_new_main): Always init last_token to last token of
357 (cp_lexer_new_from_tokens): Overlay EOF token at end of range.
358 (cp_lexer_destroy): Restore token under the EOF.
359 (cp_lexer_previous_token_position): No check for eof_token here.
360 (cp_lexer_get_preprocessor_token): Clear tree_check_p.
361 (cp_lexer_peek_nth_token): Check CPP_EOF not eof_token.
362 (cp_lexer_consume_token): Assert not CPP_EOF, no check for
364 (cp_lexer_purge_token): Likewise.
365 (cp_lexer_purge_tokens_after): No check for EOF token.
366 (cp_parser_nested_name_specifier, cp_parser_decltype)
367 (cp_parser_template_id): Set tree_check_p.
369 2019-10-24 Jakub Jelinek <jakub@redhat.com>
371 * decl2.c (cplus_decl_attributes): Add "omp declare target block"
372 attribute in between declare target and end declare target
375 * call.c (convert_arg_to_ellipsis): Add missing space in string
378 2019-10-24 Marek Polacek <polacek@redhat.com>
380 * decl.c (reshape_init_r): Add missing space.
382 2019-10-24 Nathan Sidwell <nathan@acm.org>
384 * pt.c (reduce_template_parm_level): Attach the new TPI to the new
386 (convert_generic_types_to_packs): Pass the copied type to
387 reduce_templatE_parm_level.
389 2019-10-23 Nathan Sidwell <nathan@acm.org>
391 * cp-tree.c (CPTI_STD_IDENTIFIER): Delete.
392 (std_identifier): Delete.
393 (DECL_NAME_SPACE_STD_P): Compare against std_node.
394 * decl.c (initialize_predefined_identifiers): 'std' is not needed.
395 (cxx_init_decl_processing): Adjust creation of ::std. Use
396 {push,pop}_nested_namespace.
397 (cxx_builtin_function): Use {push,pop}_nested_namespace.
398 * except.c (init_exception_processing): Likewise.
399 * rtti.c (init_rtti_processing): Likewise.
401 2019-10-23 Jason Merrill <jason@redhat.com>
403 Implement P1286R2, Contra CWG1778
404 * method.c (defaulted_late_check): Don't check explicit
405 exception-specification on defaulted function.
406 (after_nsdmi_defaulted_late_checks): Remove.
407 * parser.h (struct cp_unparsed_functions_entry): Remove classes.
408 * parser.c (unparsed_classes): Remove.
409 (push_unparsed_function_queues, cp_parser_class_specifier_1):
412 2019-10-23 Jakub Jelinek <jakub@redhat.com>
414 * constexpr.c (cxx_eval_constant_expression) <case CLEANUP_STMT>:
415 Temporarily change input_location to CLEANUP_STMT location.
417 2019-10-22 Jakub Jelinek <jakub@redhat.com>
419 PR tree-optimization/85887
420 * decl.c (expand_static_init): Drop ECF_LEAF from __cxa_guard_acquire
421 and __cxa_guard_release.
423 2019-10-22 Marc Glisse <marc.glisse@inria.fr>
426 * constexpr.c (cxx_eval_builtin_function_call): Only set
427 force_folding_builtin_constant_p if manifestly_const_eval.
429 2019-10-22 Richard Sandiford <richard.sandiford@arm.com>
431 * cp-tree.h (STF_USER_VISIBLE): New constant.
432 (strip_typedefs, strip_typedefs_expr): Take a flags argument.
433 * tree.c (strip_typedefs, strip_typedefs_expr): Likewise,
434 updating mutual calls accordingly. When STF_USER_VISIBLE is true,
435 only look through typedefs if user_facing_original_type_p.
436 * error.c (dump_template_bindings, type_to_string): Pass
437 STF_USER_VISIBLE to strip_typedefs.
438 (dump_type): Likewise, unless pp_c_flag_gnu_v3 is set.
440 2019-10-21 Kamlesh Kumar <kamleshbhalui@gmail.com>
441 Jason Merrill <jason@redhat.com>
443 PR c++/83534 - typeinfo of noexcept function
444 * rtti.c (get_tinfo_decl_dynamic): Do not call
445 TYPE_MAIN_VARIANT for function.
446 (get_typeid): Likewise.
448 2019-10-21 Paolo Carlini <paolo.carlini@oracle.com>
450 * parser.c (cp_parser_class_head): Improve error recovery upon
451 extra qualification error.
453 2019-10-21 Jakub Jelinek <jakub@redhat.com>
456 * constexpr.c (cxx_eval_component_reference, cxx_eval_bit_field_ref):
457 Use STRIP_ANY_LOCATION_WRAPPER on CONSTRUCTOR elts.
459 2019-10-21 Marek Polacek <polacek@redhat.com>
461 PR c++/92062 - ODR-use ignored for static member of class template.
462 * pt.c (has_value_dependent_address): Strip location wrappers.
464 2019-10-21 Marek Polacek <polacek@redhat.com>
466 PR c++/92106 - ICE with structured bindings and -Wreturn-local-addr.
467 * typeck.c (maybe_warn_about_returning_address_of_local): Avoid
468 recursing on null initializer and return false instead.
470 2019-10-17 JeanHeyd Meneide <phdofthehouse@gmail.com>
472 Implement p1301 [[nodiscard("should have a reason")]] + p1771 DR
473 * tree.c (handle_nodiscard_attribute): Handle C++2a nodiscard
475 (std_attribute_table) Increase nodiscard argument handling
476 max_length from 0 to 1.
477 * parser.c (cp_parser_check_std_attribute): Add requirement
478 that nodiscard only be seen once in attribute-list.
479 (cp_parser_std_attribute): Check that empty parenthesis lists are
480 not specified for attributes that have max_length > 0 (e.g.
482 * cvt.c (maybe_warn_nodiscard): Add nodiscard message to
483 output, if applicable.
484 (convert_to_void): Allow constructors to be nodiscard-able (P1771).
486 2019-10-18 Nathan Sidwell <nathan@acm.org>
488 * cp-tree.h (struct lang_type): Remove was_anonymous.
489 (TYPE_WAS_UNNAMED): Implement by checking TYPE_DECL &
491 * decl.c (name_unnamed_type): Don't set TYPE_WAS_UNNAMED.
493 2019-10-17 Paolo Carlini <paolo.carlini@oracle.com>
495 * decl.c (grokfndecl): Remove redundant use of in_system_header_at.
496 (compute_array_index_type_loc): Likewise.
497 (grokdeclarator): Likewise.
498 * error.c (cp_printer): Likewise.
499 * lambda.c (add_default_capture): Likewise.
500 * parser.c (cp_parser_primary_expression): Likewise.
501 (cp_parser_selection_statement): Likewise.
502 (cp_parser_toplevel_declaration): Likewise.
503 (cp_parser_enumerator_list): Likewise.
504 (cp_parser_using_declaration): Likewise.
505 (cp_parser_member_declaration): Likewise.
506 (cp_parser_exception_specification_opt): Likewise.
507 (cp_parser_std_attribute_spec): Likewise.
508 * pt.c (do_decl_instantiation): Likewise.
509 (do_type_instantiation): Likewise.
510 * typeck.c (cp_build_unary_op): Likewise.
512 * decl.c (check_tag_decl): Pass to in_system_header_at the same
513 location used for the permerror.
514 (grokdeclarator): Likewise.
516 * decl.c (check_tag_decl): Use locations[ds_typedef] in error_at.
518 2019-10-17 Jason Merrill <jason@redhat.com>
520 * cp-gimplify.c (cp_gimplify_expr): Use get_initialized_tmp_var.
521 (gimplify_to_rvalue): Remove default NULL argument.
523 2019-10-17 Nathan Sidwell <nathan@acm.org>
525 * decl.c (builtin_function_1): Merge into ...
526 (cxx_builtin_function): ... here. Nadger the decl before maybe
527 copying it. Set the context.
528 (cxx_builtin_function_ext_scope): Push to top level, then call
529 cxx_builtin_function.
531 2019-10-16 Luis Machado <luis.machado@linaro.org>
533 * cp-gimplify.c: Fix reference to non-existing tree-gimple.c file.
535 2019-10-16 Jakub Jelinek <jakub@redhat.com>
537 * decl.c (cxx_maybe_build_cleanup): When clearing location of cleanup,
538 if cleanup is a nop, clear location of its operand too.
540 2019-10-15 Andrew Sutton <asutton@lock3software.com>
542 Finish moving constraint and logic functionality of out pt.c.
543 Reimplement and re-enable subsumption caching.
545 * config-lang.in (gtfiles): Add logic.cc.
546 * constraint.cc (atomic_constraints_identical_p): Add assertions.
547 (hash_atomic_constraint): Likewise.
548 (constraints_equivalent_p): New.
549 (inchash::add_constraint): New.
550 (iterative_hash_constraint): New.
551 (decl_constraints): Moved from pt.c.
552 (get_constraints): Likewise.
553 (set_constraints): Likewise.
554 (remove_constraints): Likewise.
555 * cp-tree.h (CONSTR_P): New.
556 (init_constraint_processing): Remove.
557 (constraints_equivalent_p, iterative_hash_constraint): Declare.
558 * decl.c (cxx_init_decl_processing): Don't initialize constraints.
559 * logic.cc (subsumption_entry): Moved from pt.c.
560 (subsumption_hasher): Likewise.
561 (subsumption_cache): Likewise.
562 (lookup_subsumption): Likewise.
563 (save_subsumption): Likewise.
564 (subsumes_constraints_nonnull): Use subsumption cache.
565 * pt.c: Move aforementioned declarations out of this file.
566 (init_constraint_processing): Remove.
568 2019-10-15 Andrew Sutton <asutton@lock3software.com>
570 * parser.c (cp_parser_constructor_declarator_p): Pass an empty
571 decl-specifier-seq to make sure we parse type constraints as part
574 2019-10-15 Nathan Sidwell <nathan@acm.org>
576 * class.c (build_clones): Break out of clone_function_decl. Just
578 (clone_function_decl): Call build_clones, then maybe add them to
581 * class.c (build_clone): Refactor to clarify recursiveness.
583 2019-10-14 Jason Merrill <jason@redhat.com>
585 PR c++/91930 - ICE with constrained inherited default ctor.
586 * name-lookup.c (do_class_using_decl): Set TYPE_HAS_USER_CONSTRUCTOR
587 for inherited constructor.
589 2019-10-14 Paolo Carlini <paolo.carlini@oracle.com>
591 * decl.c (check_tag_decl): Use DECL_SOURCE_LOCATION.
593 2019-10-14 Jakub Jelinek <jakub@redhat.com>
596 * semantics.c (handle_omp_array_sections_1): Temporarily disable
597 -fstrong-eval-order also for in_reduction and task_reduction clauses.
599 * parser.c (cp_parser_omp_all_clauses): Change bool NESTED_P argument
600 into int NESTED, if it is 2, diagnose missing commas in between
602 (cp_parser_omp_context_selector): Pass 2 as last argument to
603 cp_parser_omp_all_clauses.
605 2019-10-12 Jakub Jelinek <jakub@redhat.com>
607 * parser.c (cp_parser_omp_context_selector): Improve error recovery.
608 For simd properties, put them directly into TREE_VALUE.
609 (cp_finish_omp_declare_variant): Add "omp declare variant base"
610 attribute rather than "omp declare variant".
612 2019-10-11 Marek Polacek <polacek@redhat.com>
614 PR c++/92049 - extra error with -fchecking=2.
615 * pt.c (build_non_dependent_expr): Call fold_non_dependent_expr
618 2019-10-11 Paolo Carlini <paolo.carlini@oracle.com>
620 * typeck.c (cp_build_binary_op): Do not handle RROTATE_EXPR and
622 * constexpr.c (cxx_eval_constant_expression): Likewise.
623 (potential_constant_expression_1): Likewise.
624 * pt.c (tsubst_copy): Likewise.
626 2019-10-11 Jason Merrill <jason@redhat.com>
628 * decl2.c (mark_used): Don't clobber DECL_SOURCE_LOCATION on
629 explicitly defaulted functions.
630 * method.c (synthesize_method): Likewise.
632 2019-10-11 Jakub Jelinek <jakub@redhat.com>
635 * decl2.c (grok_array_decl): For -fstrong-eval-order, when array ref
636 operands have been swapped and at least one operand has side-effects,
637 revert the swapping before calling build_array_ref.
638 * typeck.c (cp_build_array_ref): For non-ARRAY_TYPE array ref with
639 side-effects on the index operand, if -fstrong-eval-order use
640 save_expr around the array operand.
641 (cp_build_binary_op): For shifts with side-effects in the second
642 operand, wrap first operand into SAVE_EXPR and evaluate it before
644 * semantics.c (handle_omp_array_sections_1): Temporarily disable
645 flag_strong_eval_order during OMP_CLAUSE_REDUCTION array section
647 * cp-gimplify.c (gimplify_to_rvalue): New function.
648 (cp_gimplify_expr): Use it.
650 2019-10-10 Marek Polacek <polacek@redhat.com>
652 * typeck.c (comp_ptr_ttypes_real): Change the return type to bool.
653 Use false instead of 0.
655 2019-10-10 Jakub Jelinek <jakub@redhat.com>
657 * parser.h (struct cp_omp_declare_simd_data): Add variant_p member.
658 * parser.c (cp_ensure_no_omp_declare_simd): Handle both declare simd
660 (cp_parser_oacc_all_clauses): Formatting fix.
661 (cp_parser_omp_all_clauses): Add NESTED_P argument, if true, terminate
662 processing on closing paren and don't skip to end of pragma line.
663 (cp_parser_omp_declare_simd): Add VARIANT_P argument. Handle also
665 (omp_construct_selectors, omp_device_selectors,
666 omp_implementation_selectors, omp_user_selectors): New variables.
667 (cp_parser_omp_context_selector,
668 cp_parser_omp_context_selector_specification,
669 cp_finish_omp_declare_variant): New functions.
670 (cp_parser_late_parsing_omp_declare_simd): Handle also declare variant.
671 (cp_parser_omp_declare): Handle declare variant.
673 2019-10-09 Jason Merrill <jason@redhat.com>
675 * cp-tree.h (template_info_decl_check): Check ENABLE_TREE_CHECKING.
677 2019-10-09 Marek Polacek <polacek@redhat.com>
679 PR c++/91364 - P0388R4: Permit conversions to arrays of unknown bound.
680 PR c++/69531 - DR 1307: Differently bounded array parameters.
681 PR c++/88128 - DR 330: Qual convs and pointers to arrays of pointers.
682 * call.c (build_array_conv): Build ck_identity at the beginning
684 (standard_conversion): Pass bounds_none to comp_ptr_ttypes_const.
685 (maybe_warn_array_conv): New.
686 (convert_like_real): Call it. Add an error message about converting
687 from arrays of unknown bounds.
688 (conv_get_original_expr): New.
689 (nelts_initialized_by_list_init): New.
690 (conv_binds_to_array_of_unknown_bound): New.
691 (compare_ics): Implement list-initialization ranking based on
692 array sizes, as specified in DR 1307 and P0388R.
693 * cp-tree.h (comp_ptr_ttypes_const): Adjust declaration.
694 (compare_bounds_t): New enum.
695 * typeck.c (comp_array_types): New bool and compare_bounds_t
696 parameters. Use them.
697 (structural_comptypes): Adjust the call to comp_array_types.
698 (similar_type_p): Handle ARRAY_TYPE.
699 (build_const_cast_1): Pass bounds_none to comp_ptr_ttypes_const.
700 (comp_ptr_ttypes_real): Don't check cv-quals of ARRAY_TYPEs. Use
701 comp_array_types to compare array types. Look through arrays as per
703 (comp_ptr_ttypes_const): Use comp_array_types to compare array types.
704 Look through arrays as per DR 330.
706 2019-10-09 Marek Polacek <polacek@redhat.com>
708 PR c++/92032 - DR 1601: Promotion of enum with fixed underlying type.
709 * call.c (standard_conversion): When converting an enumeration with
710 a fixed underlying type to the underlying type, give it the cr_promotion
712 (compare_ics): Implement a tiebreaker as per CWG 1601.
714 2019-10-08 Andrew Sutton <asutton@lock3software.com>
715 Jason Merrill <jason@redhat.com>
717 Update the concepts implementation to conform to the C++20
718 specification, improve compile times, and generally clean up
720 * call.c (build_new_function_call): Don't evaluate concepts here.
721 (constraint_failure): Don't record the template.
722 (print_z_candidate): Don't extract the template.
723 * class.c (add_method): When overloading, hide ineligible special
725 (check_methods): Set TYPE_HAS_COMPLEX_* here.
726 * constexpr.c (cxx_eval_constant_expression): Evaluate concepts.
727 (maybe_initialize_fundef_copies_table): Remove.
728 (get_fundef_copy): Use hash_map_safe_get_or_insert.
729 (clear_cv_and_fold_caches): Clear the satisfaction cache.
730 * constraint.cc (known_non_bool_p): New.
731 (parsing_constraint_expression_sentinel): Renamed from
732 expanding_constraint_sentinel.
733 (check_constraint_operands): New.
734 (check_constraint_atom): New.
735 (finish_constraint_binary_op): New.
736 (finish_constraint_or_expr): Likewise.
737 (finish_constraint_and_expr): Likewise.
738 (finish_constraint_primary_expr): Likewise.
739 (combine_constraint_expressions): New.
740 (finish_requires_expr): Add location parm.
741 (get_concept_definition): Return the initializer of concept definitions.
742 (get_template_head_requirements): New.
743 (get_trailing_function_requirements): New.
744 (deduce_constrained_parameter): Check if the identifier or template-id
745 is a concept definition.
746 (resolve_concept_definition_check): Removed.
747 (resolve_variable_concept_check): Removed.
748 (resolve_concept_check): New.
749 (resolve_constraint_check): Handle concept definitions.
750 converting arguments.
751 (function_concept_check_p): Removed.
752 (variable_concept_check_p): Removed.
753 (unpack_concept_check): New.
754 (get_concept_check_template): New.
755 (build_call_check): Moved and renamed to build_function_check.
756 (build_concept_check_arguments): make static.
757 (build_function_check): Always do overload resolution
758 in order to force conversion of template arguments (i.e., actually
759 check that the use of a concept is valid).
760 (build_standard_check): Renamed from build_real_concept_check.
761 (build_real_concept_check): Build checks for C++2a concepts by
762 (build_wildcard_concept_check): New.
763 (build_concept_check): Use build_real_concept_check. New overload.
764 (build_constraints): Save expressions, not normalized constraints.
765 (build_concept_id): New. Pass tf_warning_or_error.
766 (build_type_constraint): New.
767 (finish_type_constraints): New.
768 (associate_classtype_constraints): Also add constraints to union
769 types. Note the original declaration in errors. Don't return
770 error_mark_node in order to avoid an assertion later.
771 (push_down_pack_expansion): Remove.
772 (finish_shorthand_constraint): Make fold expressions, not naked
773 parameter packs. Always apply the constraint to each template argument.
774 (check_introduction_list): New. Fail if not enough
775 names are introduced.
776 (finish_template_introduction): Don't normalize constraints. Pass
777 tsubst flags. Check for insufficient introductions.
778 (placeholder_extract_concept_and_args): Handle the template-id case.
779 Unpack function concept checks correctly.
780 (tsubst_simple_requirement): Return errors if they occur. Don't
781 process as a template.
782 (tsubst_type_requirement): Likewise.
783 (type_deducible_p): New. Wrap the input expression in parens for the
784 purpose of deduction.
785 (expression_convertible_t): New.
786 (tsubst_compound_requirement): Use new deduction, conversion predicates.
787 (tsubst_nested_requirement): Return errors if they occur. Don't
788 process as a template. Instantiate and evaluate the nested requirement.
789 (tsubst_valid_expression_requirement): New.
790 (tsubst_simple_requirement): Use tsubst_valid_expression_requirement.
791 (tsubst_compound_requirement): Use tsubst_valid_expression_requirement.
792 (check_constaint_variables): New.
793 (tsubst_constraint_variables): Check that type substitutions are valid.
794 (tsubst_requires_expr): Likewise. Produce new requires-exprs during
795 template substitution. Copy the previous local specialization stack,
796 so references to non-local parameters can be found. Use cp_unevaluated.
797 (tsubst_constraint): New. Don't evaluate concept checks.
799 (norm_info): New. Used to build a normalization tree for concept check
801 (debug_parameter_mapping): New.
802 (debug_argument_list): New.
803 (expand_concept): Removed.
804 (normalize_logical_operation): Pass subst_info through call.
805 (normalize_pack_expansion): Remove.
806 (normalize_simple_requirement): Removed
807 (normalize_type_requirement): Removed
808 (normalize_compound_requirement): Removed
809 (normalize_nested_requirement): Removed
810 (normalize_requirement): Removed
811 (normalize_requirements): Removed
812 (normalize_requires_expression): Removed
813 (normalize_variable_concept_check): Removed.
814 (normalize_function_concept_check): Removed.
815 (normalize_concept_check): Merged all normalize_*_check here.
816 Substitute through written template arguments before normalizing the
817 definition. Only substitute the innermost template arguments.
818 (check_for_logical_overloads): Delete.
819 (map_arguments): New. Associate template parameters with arguments.
820 (build_parameter_mapping): New. Extract used parameters.
821 (normalize_expression): Rewrite.
822 (normalize_conjunction): Removed
823 (normalize_disjunction): Removed
824 (normalize_predicate_constraint): Removed
825 (normalize_parameterized_constraint): Removed
826 (normalized_map): New variable.
827 (get_normalized_constraints): New entry point for normalization.
829 (get_normalized_constraints_from_info): New.
830 (get_normalized_constraints_from_decl): New. Turn on template processing
831 prior to normalization. Handle inheriting ctors. Build the
832 normalization arguments from the full set of template parameters of the
833 most general template. This guarantees that we have no concrete arguments
834 in the parameter mapping (e.g., from template members of class
835 templates). Cache normalizations.
836 (normalize_concept_definition): New. Cache normalizations.
837 (normalize_template_requirements): New.
838 (normalize_nontemplate_requirements): New.
839 (normalize_constraint_expression): New.
840 (tsubst_parameter_mapping): New.
841 (get_mapped_args): New.
842 (parameter_mapping_equivalent_p): New. Use template_args_equal.
843 (atomic_constraints_identical_p): New.
844 (hash_atomic_constraint): New.
845 (satisfying_constraint_p): New. Guard against recursive evaluation of
846 constraints during satisfaction.
847 (satisfy_conjunction): New.
848 (satisfy_disjunction): New.
849 (sat_entry): New class for hashing satisfaction results.
850 (sat_hasher): New hash traits.
852 (get_satisfaction): New. Returns cached satisfaction result.
853 (save_satisfaction): New. Caches a satisfaction result.
854 (clear_satisfaction_cache): New.
855 (satisfaction_cache): New. Helps manage satisfaction cache requests.
856 (decl_satisfied_cache): New.
858 (satisfy_constraint_r): New.
859 (satisfy_constraint): Use new satisfaction algorithm.
860 (evaluate_concept_check): New.
861 (evaluate_concept): Removed.
862 (evaluate_function_concept): Removed.
863 (evaluate_variable_concept): Removed.
864 (satisfy_constraint_expression): New.
865 (constraint_expression_satisfied_p): New.
866 (constraints_satisfied_p): Use strip_inheriting_ctors. Use
867 push_/pop_access_scope.
868 (more_constrained): Normalize before calling out to subsumption. Allow
869 classes as arguments.
870 (strictly_subsumes): Allow non-templates as arguments. Accept a new
872 (weakly_subsumes): New.
873 (at_least_as_constrained): Removed.
874 (diagnose_other_expression): Removed.
875 (diagnose_predicate_constraint): Removed.
876 (diagnose_pack_expansion): Removed.
877 (diagnose_check_constraint): Removed.
878 (diagnose_logical_constraint): Removed.
879 (diagnose_expression_constraint): Removed.
880 (diagnose_type_constraint): Removed.
881 (diagnose_implicit_conversion_constraint): Removed.
882 (diagnose_argument_deduction_constraint): Removed.
883 (diagnose_exception_constraint): Removed.
884 (diagnose_parameterized_constraint): Removed.
885 (diagnose_argument_deduction_constraint): Removed.
886 (diagnose_argument_deduction_constraint): Removed.
887 (diagnose_argument_deduction_constraint): Removed.
888 (diagnose_trait_expr): New.
889 (diagnose_requires_expr): New.
890 (diagnose_atomic_constraint): New.
891 (diagnose_valid_expression) Stop wrongly diagnosing valid expressions.
892 Don't substitute as if in template decls. This causes substitution
893 to generate expressions that aren't suitable for use with the noexcept
895 (diagnose_valid_type) Likewise.
896 (diagnose_compound_requirement) Actually emit diagnostics for
897 the causes of errors.Call force_paren_expr_uneval.
898 (diagnose_declaration_constraints): Turn on template processing to
899 suppress certain analyses.
900 * cp-objcp-common.c (cp_common_init_ts): Make concepts typed.
901 (cp_get_debug_type): Use hash_map_safe_*.
902 * cp-tree.h: New function declarations for semantic actions, other
903 facilities. Remove declaration no longer used or needed. Remove
904 unused _CONSTR macros.
905 (LANG_DECL_HAS_MIN): Add CONCEPT_DECL.
906 (template_info_decl_check): Factor macro check into an inline function.
907 (DECL_TEMPLATE_INFO): Use new check facility.
908 (finish_concept_definition): New. Don't invalid concept declarations
909 with invalid initializers.
910 (find_template_parameters): New.
911 (concept_definition_p): New.
912 (concept_check_p): New.
913 (variable_concept_check_p): New.
914 (force_paren_expr_uneval): New.
915 (ovl_iterator::using_p): A USING_DECL by itself was also
916 introduced by a using-declaration.
917 (struct tree_template_info): Use tree_base instead of
918 tree_common. Add tmpl and args fields.
919 (TI_TEMPLATE, TI_ARGS): Adjust.
920 (DECLTYPE_FOR_INIT_CAPTURE): Remove.
921 (CONSTR_CHECK, CONSTR_INFO, CONSTR_EXPR, CONSTR_CONTEXT): New.
922 (ATOMIC_CONSTR_MAP, TRAIT_EXPR_LOCATION): New.
923 (struct tree_trait_expr): Add locus field.
924 (enum tsubst_flags): Add tf_norm as a hint to generate normalization
925 context when diagnosing constraint failure.
926 * cp-tree.def: Remove unused _CONSTR nodes and rename PRED_CONSTR
929 * cxx-pretty-print.c: Remove constraint printing code.
930 (pp_cxx_concept_definition): New.
931 (pp_cxx_template_declaration): Print concept definitions.
932 (pp_cxx_check_constraint): Update printing for concept definitions.
933 (pp_cxx_nested_name_specifier): Fix a weird
934 case where we're printing '::::' for concepts.
935 (simple_type_specifier): Print requirements for placeholder types.
936 (pp_cxx_constrained_type_spec): Print the associated requirements of
938 (pp_cxx_compound_requirement): Add space before the '->'.
939 (pp_cxx_parameter_mapping): Print the parameter mapping.
940 (pp_cxx_atomic_constraint): Use the function above.
941 * decl.c (redeclaration_error_message): New error for concepts.
942 (grokdeclarator): Check for and disallow decltype(auto) in parameter
944 (grokfndecl): Don't normalize constraints. Add check for constraints
946 (grokvardecl): Don't normalize constraints.
947 (grok_special_member_properties): Don't set TYPE_HAS_COMPLEX_*.
948 (function_requirements_equivalent_p): New. Compare trailing
949 requires clauses. Compare combined constraints in pre-C++20 mode.
950 (decls_match): Compare trailing requires clauses. Compare template
951 heads for function templates. Remove old constraint comparison.
952 Simplify comparison of functions, function templates.
953 (duplicate_function_template_decls): New. Refactor a nasty if
954 condition into a single predicate.
955 (require_deduced_type): Don't complain if we already complained about
957 (finish_function): Perform auto deduction to ensure that constraints
958 are checked even when functions contain no return statements. Only do
959 auto deduction if we haven't previously seen any return statements.
960 This prevents multiple diagnostics of the same error.
961 (store_decomp_type): Remove.
962 (cp_finish_decomp): Use hash_map_safe_put.
963 * error.c: Remove constraint printing code.
964 (dump_decl): Dump concept definitions. Handle wildcard declarations.
965 (dump_template_decl): Likewise.
966 (dump_type): Print associated requirements for placeholder
968 (rebuild_concept_check): New.
969 (maybe_print_single_constraint_context): New.
970 (maybe_print_constraint_context): Recursively print nested contexts.
971 * init.c (get_nsdmi): Use hash_map_safe_*.
972 * lambda.c (maybe_add_lambda_conv_op): Bail if deduction failed.
973 (add_capture): Copy parameter packs from init.
974 (lambda_capture_field_type): Always use auto for init-capture.
975 * logic.cc: Completely rewrite.
976 (constraint_hash): New.
977 (clause/ctor): Save atoms in the hash table.
978 (replace): Save atoms during replacement.
979 (insert): Save atoms during insertion.
980 (contains): Only search the hash table for containment.
981 (clause): Keep a hash of atomic constraints.
982 (clause::clause): Explicitly copy the hash table when copying.
983 (disjunction_p, conjunction_p, atomic_p, dnf_size, cnf_size): New.
984 (diagnose_constraint_size): New.
985 (subsumes_constraints_nonnull): Compare the sizes of normalized formula
986 to determine the cheapest decomposition.
987 * name-lookup.c (diagnose_name_conflict): Diagnose name issues with
989 (matching_fn_p): Check constraints.
990 (push_class_level_binding_1): Move overloaded functions case down,
991 accept FUNCTION_DECL as target_decl.
992 * parser.c (enum required_token): New required token for auto.
993 (make_location): Add overload taking lexer as last parm.
994 (cp_parser_required_error): Diagnose missing auto.
995 (cp_parser_diagnose_ungrouped_constraint_plain): New.
996 (cp_parser_diagnose_ungrouped_constraint_plain): New.
997 (cp_parser_constraint_primary_expression): New. Tentatively parse the
998 primary expression. If that fails tentatively parse a lower
999 precedence expression in order to diagnose the error.
1000 (cp_parser_check_non_logical_constraint): New. Performs a trial
1001 parse of the right-hand-side of non-logical operators in order to
1002 generate good diagnostics.
1003 (cp_parser_constraint_logical_and_expression): New.
1004 (cp_parser_constraint_logical_or_expression): New.
1005 (cp_parser_requires_clause_expression): New.
1006 (cp_parser_requires_clause): Renamed to cp_parser_constraint_expression.
1007 (cp_parser_requires_clause_opt): Parse the requires-clause differently
1008 in -fconcepts and -std=c++2a modes.
1009 (cp_parser_requirement_list): Rename to cp_parser_requirement_seq.
1010 Rewrite so that semicolons are parsed
1011 along with requirements, not the sequence.
1012 (cp_parser_simple_requirement): Expect a semicolon at end.
1013 (cp_parser_compound_requirement): Expect a semicolon at end. Only
1014 allow trailing-return-type with -fconcepts-ts.
1015 (cp_parser_nested_requirement): Expect a semicolon at end. Parse
1016 constraint-expressions.
1017 (cp_parser_concept_definition): New. Don't fail parsing the concept
1018 definition if the initializer is ill-formed. Don't declare the concept
1019 before parsing the initializer.
1020 (cp_parser_constraint_expression): Declare earlier.
1021 (cp_parser_type_requirement): Current scope is not valid.
1022 (cp_parser_requires_expression): Commit to the tentative parse.
1023 (cp_parser_decl_specifier_seq): Warn when concept appears to be used
1024 as a decl-specifier.
1025 (cp_parser_template_declaration_after_parameters): Parse concept
1027 (cp_parser_template_id): Don't try to resolve a concept template-id yet.
1028 (cp_parser_template_id_expr): Resolve it as a concept check.
1029 (cp_parser_decl_specifier_seq): Warn on 'concept bool'.
1030 (cp_parser_type_parameter): Combine expressions not
1032 (cp_parser_explicit_template_declaration): Combine expressions not
1034 (cp_parser_maybe_concept_name): Removed.
1035 (cp_parser_simple_type_specifier): Handle an error condition of
1036 a bad constrained type specifier. Expect auto or decltype after
1037 a concept name. Also handle the case where we have a template-id
1039 (cp_parser_template_introduction): Diagnose errors on invalid
1040 introductions. Give up if it doesn't start with a concept name.
1041 Pedwarn if not -fconcepts-ts.
1042 (synthesize_implicit_template_parm): Don't do consistent binding.
1043 Use a new flag for constrained parameters. Combine expressions,
1044 not constraints. Fail if we get a placeholder in block scope.
1045 Placeholders that do not constrain types are not allowed in parameter
1046 declarations, so don't handle them.
1047 (cp_parser_placeholder_type_specifier): New. Implement parsing of
1048 placeholder type specifiers following a concept name or partial
1049 concept check. Disallow decltype(auto) parameters.
1050 (cp_parser_nested_name_specifier_opt): If the token is already
1051 CPP_NESTED_NAME_SPECIFIER, leave it alone.
1052 (cp_parser_id_expression, cp_parser_unqualified_id): Call
1053 cp_parser_template_id_expr.
1054 (cp_parser_placeholder_type_specifier): Add tentative parm. Don't
1055 expect a WILDCARD_DECL.
1056 (cp_parser_trait_expr): Pass trait_loc down.
1057 (cp_parser_postfix_expression): Do set location of dependent member
1059 * pt.c (finish_concept_definition): New.
1060 (push_template_decl_real): Handle concept definitions.
1061 (start_concept_definition): Let push_template_decl_real handle the
1062 creation of the template.
1063 (get_constraints): Return null if the table hasn't been initialized.
1064 (tsubst_copy_and_build): Build template-id expressions for concept
1066 [TRAIT_EXPR]: Pass trait_loc down.
1067 (lookup_template_class_1): Add the template name to the constraint
1069 (lookup_and_finish_template_variable): Build concept checks
1070 with the correct arguments.
1071 (tsubst_function_decl): Don't substitute through constraints.
1072 Always associate constraints with functions.
1073 (template_parm_level_and_index): Make non-static.
1074 (for_each_template_parm_r): Handle requires expressions.
1075 (keep_template_parm): New.
1076 (find_template_parameters): New.
1077 (more_specialized_fn): Change how winners and losers are chosen.
1078 (make_constrained_auto): Don't normalize constraints.
1079 (template_parameters_equivalent_p): New. Compare template
1080 parameters. Add a comparison for implicitly vs. explicitly declared
1082 (template_parameter_lists_equivalent_p): New. Compare template
1084 (template_requirements_equivalent_p): New.
1085 (template_heads_equivalent_p): New. Compare template heads.
1086 (template_parameter_constraints_equivalent_p): New.
1087 (is_compatible_template_arg): Use weakly_subsumes.
1088 (maybe_new_partial_specialization): Use new constraint comparison
1089 for finding specializations.
1090 (process_partial_specialization): Pass main template as argument.
1091 (more_specialized_partial_spec): Don't immediately return when
1093 (make_constrained_auto): Handle concept definitions.
1094 (do_auto_deduction): Update auto deduction for new concept model.
1095 Extract the function concept correctly; rename constr to check to
1096 reflect the kind of node.
1097 (tsubst): Adjust wildcard argument during substitution.
1098 [DECLTYPE_TYPE]: Remove init-capture handling.
1099 (tsubst_copy_and_build): Build concept checks, not template ids.
1100 Defer checks of function concepts. Handle concepts before variable
1101 templates. Handle calls to function concepts explicitly.
1102 (coerce_template_parms): Use concept_definition_p. Handle a deduction
1103 error where a potentially empty pack can be supplied after the last
1104 parameter of a concept.
1105 (finish_template_variable): Don't process concepts here.
1106 (instantiation_dependent_r): Use concept_check_p.
1107 (tsubst_template_args): Make non-static.
1108 (make_constrained_placeholder_type): New. Refactored from
1109 make_constrained_auto.
1110 (make_constrained_auto) Use make_constrained_placeholder_type.
1111 (make_constrained_decltype_auto) New.
1112 (tsubst_function_parms): New.
1113 (value_dependent_expression_p) [TEMPLATE_ID_EXPR]: Use
1114 concept_definition_p.
1115 (push_access_scope, pop_access_scope): No longer static.
1116 (tsubst_template_parm): Substitute TEMPLATE_PARM_CONSTRAINTS.
1117 (tsubst_friend_function): Use tsubst_constraint. Use generic_targs_for.
1118 (get_underlying_template) Use generic_targs_for.
1119 (uses_parameter_packs): Return tree.
1120 (gen_elem_of_pack_expansion_instantiation): Don't push
1121 local_specialization_stack.
1122 (prepend_one_capture): New.
1123 (tsubst_lambda_expr): Use prepend_one_capture. Don't touch
1124 local_specializations.
1125 (template_parms_level_to_args): No longer static.
1126 (add_outermost_template_args): Likewise.
1127 (find_template_parameter_info): New. Provide context for finding
1128 template parameters.
1129 (keep_template_parm): Don't keep parameters declared at depth levels
1130 greater than those of the template parameters of the source declaration.
1131 Don't propagate cv-qualified types. Return 0, so we find all template
1132 parameters, not the just first.
1133 (any_template_parm_r): New. Handle cases that are mishandled by
1134 for_each_template_parm_r.
1135 (generic_targs_for): Factor out of coerce_template_args_for_ttp.
1136 (tsubst_argument_pack): Factor out of tsubst_template_args.
1137 (constraint_sat_entry): Removed.
1138 (constraint_sat_hasher): Removed.
1139 (concept_spec_entry): Removed.
1140 (concept_spec_hasher): Removed.
1141 (constraint_memos): Removed.
1142 (concept_memos): Removed.
1143 (lookup_constraint_satisfaction): Removed.
1144 (memoize_constraint_satisfaction): Removed.
1145 (lookup_concept_satisfaction): Removed.
1146 (memoize_concept_satisfaction): Removed.
1147 (concept_expansions): Removed.
1148 (get_concept_expansion): Removed.
1149 (save_concept_expansion): Removed.
1150 (init_constraint_processing): Remove initialization of non-existing
1152 (find_template_requirement): New. Search for the sub-requirement
1153 within the associated constraints.
1154 (convert_generic_types_to_packs): Also transform the associated
1155 constraint and update the current template requirements.
1156 (store_defaulted_ttp, lookup_defaulted_ttp): Remove.
1157 (add_defaults_to_ttp): Use hash_map_safe_*.
1158 * semantics.c (finish_call_expr): Diagnose calls to concepts.
1159 Handle concept checks explicitly.
1160 (finish_id_expression): Evaluate variable concepts as part of
1161 id-expression processing. Don't treat variable concepts as variables,
1162 and don't process function concepts as plain id-expressions.
1163 (force_paren_expr): Add even_uneval parm.
1164 (finish_trait_expr): Add location parm.
1165 * tree.c (special_memfn_p): New.
1166 (cp_expr_location): Handle TRAIT_EXPR.
1167 * typeck.c (check_return_expr): Actually use the diagnostic kind
1168 when performing return-type deduction.
1169 * typeck2.c (build_functional_cast): Don't rely on the location of
1172 2019-10-09 Paolo Carlini <paolo.carlini@oracle.com>
1174 * decl.c (grok_ctor_properties): Use DECL_SOURCE_LOCATION.
1175 * typeck.c (cp_build_binary_op): Use the op_location_t argument
1176 in many error messages.
1178 2019-10-08 Martin Sebor <msebor@redhat.com>
1181 * call.c (maybe_warn_class_memaccess): Handle arrays.
1183 2019-10-07 Paolo Carlini <paolo.carlini@oracle.com>
1185 * call.c (resolve_args): Use cp_expr_loc_or_input_loc in one place.
1186 * decl.c (grokdeclarator): Use id_loc in one place.
1187 * decl2.c (build_anon_union_vars): Use DECL_SOURCE_LOCATION.
1188 * parser.c (cp_parser_delete_expression): Fix the location of the
1189 returned expression.
1190 (cp_parser_throw_expression): Likewise.
1191 * pt.c (determine_specialization): Use DECL_SOURCE_LOCATION.
1193 2019-10-05 Jakub Jelinek <jakub@redhat.com>
1195 PR c++/91369 - Implement P0784R7: constexpr new
1196 * cp-tree.h (enum cp_tree_index): Add CPTI_HEAP_UNINIT_IDENTIFIER,
1197 CPTI_HEAP_IDENTIFIER and CPTI_HEAP_DELETED_IDENTIFIER.
1198 (heap_uninit_identifier, heap_identifier, heap_deleted_identifier):
1200 (type_has_constexpr_destructor, build_new_constexpr_heap_type,
1201 cxx_constant_dtor): Declare.
1202 * class.c (type_maybe_constexpr_default_constructor): Make static.
1203 (type_maybe_constexpr_destructor, type_has_constexpr_destructor): New
1205 (finalize_literal_type_property): For c++2a, don't clear
1206 CLASSTYPE_LITERAL_P for types without trivial destructors unless they
1207 have non-constexpr destructors.
1208 (explain_non_literal_class): For c++2a, complain about non-constexpr
1209 destructors rather than about non-trivial destructors.
1210 * constexpr.c: Include stor-layout.h.
1211 (struct constexpr_global_ctx): New type.
1212 (struct constexpr_ctx): Add global field, remove values and
1213 constexpr_ops_count.
1214 (cxx_replaceable_global_alloc_fn): New inline function.
1215 (cxx_eval_call_expression): For c++2a allow calls to replaceable
1216 global allocation functions, for new return address of a heap uninit
1217 var, for delete record its deletion. Change ctx->values->{get,put} to
1218 ctx->global->values.{get,put}.
1219 (non_const_var_error): Add auto_diagnostic_group sentinel. Emit
1220 special diagnostics for heap variables.
1221 (cxx_eval_store_expression): Change ctx->values->{get,put} to
1222 ctx->global->values.{get,put}.
1223 (cxx_eval_loop_expr): Initialize jump_target if NULL. Change
1224 new_ctx.values->remove to ctx->global->values.remove.
1225 (cxx_eval_constant_expression): Change *ctx->constexpr_ops_count
1226 to ctx->global->constexpr_ops_count. Change ctx->values->{get,put} to
1227 ctx->global->values.{get,put}.
1228 <case NOP_EXPR>: Formatting fix. On cast of replaceable global
1229 allocation function to some pointer type, adjust the type of
1230 the heap variable and change name from heap_uninit_identifier
1232 (find_heap_var_refs): New function.
1233 (cxx_eval_outermost_constant_expr): Add constexpr_dtor argument,
1234 handle evaluation of constexpr dtors and add tracking of heap
1235 variables. Use tf_no_cleanup for get_target_expr_with_sfinae.
1236 (cxx_constant_value): Adjust cxx_eval_outermost_constant_expr caller.
1237 (cxx_constant_dtor): New function.
1238 (maybe_constant_value, fold_non_dependent_expr_template,
1239 maybe_constant_init_1): Adjust cxx_eval_outermost_constant_expr
1241 (potential_constant_expression_1): Ignore clobbers. Allow
1242 COND_EXPR_IS_VEC_DELETE for c++2a.
1243 * decl.c (initialize_predefined_identifiers): Add heap identifiers.
1244 (decl_maybe_constant_destruction): New function.
1245 (cp_finish_decl): Don't clear TREE_READONLY for constexpr variables
1246 with non-trivial, but constexpr destructors.
1247 (register_dtor_fn): For constexpr variables with constexpr non-trivial
1248 destructors call cxx_maybe_build_cleanup instead of adding destructor
1250 (expand_static_init): For constexpr variables with constexpr
1251 non-trivial destructors call cxx_maybe_build_cleanup.
1252 (grokdeclarator): Allow constexpr destructors for c++2a. Formatting
1254 (cxx_maybe_build_cleanup): For constexpr variables with constexpr
1255 non-trivial destructors call cxx_constant_dtor instead of adding
1256 destructor calls at runtime.
1257 * init.c: Include stor-layout.h.
1258 (build_new_constexpr_heap_type, maybe_wrap_new_for_constexpr): New
1260 (build_new_1): For c++2a and new[], add cast around the alloc call
1261 to help constexpr evaluation figure out the type of the heap storage.
1262 (build_vec_delete_1): Set DECL_INITIAL of tbase and emit a DECL_EXPR
1263 for it instead of initializing an uninitialized variable.
1264 * method.c: Include intl.h.
1265 (SFK_CTOR_P, SFK_DTOR_P, SFK_ASSIGN_P, SFK_COPY_P, SFK_MOVE_P): Move
1266 definitions earlier.
1267 (process_subob_fn): Add sfk argument, adjust non-constexpr call
1268 diagnostics based on it.
1269 (walk_field_subobs): Formatting fixes. Adjust process_subob_fn caller.
1270 (synthesized_method_base_walk): Likewise.
1271 (synthesized_method_walk): Set *constexpr_p to true for dtors in c++2a.
1272 Fix up DR number in comment.
1273 (implicitly_declare_fn): Formatting fix.
1274 * typeck2.c (store_init_value): Don't call cp_fully_fold_init on
1275 initializers of automatic non-constexpr variables in constexpr
1278 2019-10-04 Jakub Jelinek <jakub@redhat.com>
1281 * constexpr.c (cxx_fold_indirect_ref_1): New function.
1282 (cxx_fold_indirect_ref): Use it.
1285 * cp-gimplify.c (cp_gimplify_expr) <case CALL_EXPR>: For
1286 -fstrong-eval-order ensure CALL_EXPR_FN side-effects are evaluated
1287 before any arguments. Additionally, ensure CALL_EXPR_FN that isn't
1288 invariant nor OBJ_TYPE_REF nor SSA_NAME is forced into a temporary.
1290 2019-10-03 Paolo Carlini <paolo.carlini@oracle.com>
1292 * init.c (build_new): Use cp_expr_loc_or_input_loc in two places.
1293 * name-lookup.c (do_pushdecl): Use DECL_SOURCE_LOCATION.
1294 (push_class_level_binding_1): Likewise.
1295 (set_decl_namespace): Likewise.
1297 2019-10-03 Jakub Jelinek <jakub@redhat.com>
1299 * constexpr.c (cxx_eval_constant_expression) <case CLEANUP_STMT>: If
1300 not skipping upon entry to body, run cleanup with the same *jump_target
1301 as it started to run the cleanup even if the body returns, breaks or
1303 (potential_constant_expression_1): Allow CLEANUP_STMT.
1305 * constexpr.c (cxx_eval_store_expression): Formatting fix. Handle
1306 const_object_being_modified with array type.
1308 2019-10-02 Jason Merrill <jason@redhat.com>
1310 * typeck2.c (store_init_value): Only clear_cv_and_fold_caches if the
1313 2019-09-30 Jason Merrill <jason@redhat.com>
1315 Use hash_map_safe_* functions.
1316 * constexpr.c (maybe_initialize_fundef_copies_table): Remove.
1317 (get_fundef_copy): Use hash_map_safe_get_or_insert.
1318 * cp-objcp-common.c (cp_get_debug_type): Use hash_map_safe_*.
1319 * decl.c (store_decomp_type): Remove.
1320 (cp_finish_decomp): Use hash_map_safe_put.
1321 * init.c (get_nsdmi): Use hash_map_safe_*.
1322 * pt.c (store_defaulted_ttp, lookup_defaulted_ttp): Remove.
1323 (add_defaults_to_ttp): Use hash_map_safe_*.
1325 2019-10-02 Richard Biener <rguenther@suse.de>
1328 * decl.c (build_ptrmemfunc_type): Mark pointer-to-member
1329 fat pointer structure members as DECL_NONADDRESSABLE_P.
1331 2019-09-28 Marek Polacek <polacek@redhat.com>
1333 PR c++/91889 - follow-up fix for DR 2352.
1334 * call.c (involves_qualification_conversion_p): New function.
1335 (direct_reference_binding): Build a ck_qual if the conversion
1336 would involve a qualification conversion.
1337 (convert_like_real): Strip the conversion created by the ck_qual
1338 in direct_reference_binding.
1340 PR c++/91921 - stray warning with -Woverloaded-virtual.
1341 * class.c (warn_hidden): Only emit the second part of
1342 -Woverloaded-virtual if the first part was issued. Use inform instead
1345 PR c++/91923 - failure-to-SFINAE with class type NTTP in C++17.
1346 * pt.c (invalid_nontype_parm_type_p): Only emit errors when
1349 2019-09-27 Jakub Jelinek <jakub@redhat.com>
1352 * parser.c (cp_parser_omp_var_list_no_open): Parse predefined
1354 * semantics.c (finish_omp_clauses): Allow predefined variables in
1355 shared and firstprivate clauses, even when they are predetermined
1357 * cp-gimplify.c (cxx_omp_predetermined_sharing_1): Return
1358 OMP_CLAUSE_DEFAULT_SHARED for predefined variables.
1360 2019-09-27 Jason Merrill <jason@redhat.com>
1362 * constexpr.c (cxx_fold_indirect_ref): Use similar_type_p.
1363 (cxx_eval_indirect_ref): Likewise. Improve error location.
1365 * cp-tree.h (class iloc_sentinel): New.
1366 * decl.c (grokdeclarator, finish_enum_value_list): Use it.
1367 * mangle.c (mangle_decl_string): Use it.
1368 * pt.c (perform_typedefs_access_check): Use it.
1370 2019-09-27 Richard Sandiford <richard.sandiford@arm.com>
1372 * cp-tree.h (build_cxx_call): Take the original function decl
1373 as an optional final parameter.
1374 (cp_build_function_call_vec): Likewise.
1375 * call.c (build_cxx_call): Likewise. Pass all built-in calls to
1376 check_builtin_function_arguments.
1377 * typeck.c (build_function_call_vec): Take the original function
1378 decl as an optional final parameter and pass it to
1379 cp_build_function_call_vec.
1380 (cp_build_function_call_vec): Take the original function
1381 decl as an optional final parameter and pass it to build_cxx_call.
1383 2019-09-25 Marek Polacek <polacek@redhat.com>
1385 PR c++/91877 - ICE with converting member of packed struct.
1386 * call.c (convert_like_real): Use similar_type_p in an assert.
1388 2019-09-25 Paolo Carlini <paolo.carlini@oracle.com>
1390 * name-lookup.c (check_extern_c_conflict): Use DECL_SOURCE_LOCATION.
1391 (check_local_shadow): Use it in three additional places.
1393 2019-09-24 Jason Merrill <jason@redhat.com>
1395 * parser.c (cp_parser_postfix_expression): Do set location of
1396 dependent member call.
1398 2019-09-24 Marek Polacek <polacek@redhat.com>
1400 PR c++/91868 - improve -Wshadow location.
1401 * name-lookup.c (check_local_shadow): Use DECL_SOURCE_LOCATION
1402 instead of input_location.
1404 PR c++/91845 - ICE with invalid pointer-to-member.
1405 * expr.c (mark_use): Use error_operand_p.
1406 * typeck2.c (build_m_component_ref): Check error_operand_p after
1407 calling mark_[lr]value_use.
1409 2019-09-23 Paolo Carlini <paolo.carlini@oracle.com>
1411 * pt.c (check_explicit_specialization): Use cp_expr_loc_or_input_loc.
1412 (process_partial_specialization): Likewise.
1413 (convert_nontype_argument_function): Likewise.
1414 (invalid_tparm_referent_p): Likewise.
1415 (convert_template_argument): Likewise.
1416 (check_valid_ptrmem_cst_expr): Tidy.
1418 2019-09-23 Jason Merrill <jason@redhat.com>
1420 PR c++/91809 - bit-field and ellipsis.
1421 * call.c (convert_arg_to_ellipsis): Don't call decay_conversion for
1422 arithmetic arguments.
1424 2019-09-23 Marek Polacek <polacek@redhat.com>
1426 PR c++/91844 - Implement CWG 2352, Similar types and reference binding.
1427 * call.c (reference_related_p): Use similar_type_p instead of
1429 (reference_compatible_p): Update implementation to match CWG 2352.
1430 * cp-tree.h (similar_type_p): Declare.
1431 * typeck.c (similar_type_p): New.
1433 2019-09-22 Marek Polacek <polacek@redhat.com>
1435 PR c++/91819 - ICE with operator++ and enum.
1436 * call.c (build_new_op_1): Set arg2_type.
1438 2019-09-17 Jason Merrill <jason@redhat.com>
1440 * parser.c (cp_parser_statement): Handle [[likely]] on
1443 2019-09-19 Jason Merrill <jason@redhat.com>
1446 * call.c (build_new_op_1): Don't apply any standard conversions to
1447 the operands of a built-in operator. Don't suppress conversions in
1449 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
1451 2019-09-16 Paolo Carlini <paolo.carlini@oracle.com>
1453 * decl.c (grokdeclarator): Use declspecs->locations and
1454 declarator->id_loc in a few error messages.
1455 * pt.c (finish_member_template_decl): Use DECL_SOURCE_LOCATION.
1456 (push_template_decl_real): Likewise.
1458 2019-09-15 Jason Merrill <jason@redhat.com>
1460 PR c++/30277 - int-width bit-field promotion.
1461 PR c++/33819 - long bit-field promotion.
1462 * typeck.c (cp_perform_integral_promotions): Handle large bit-fields
1463 properly. Handle 32-bit non-int bit-fields properly.
1464 (is_bitfield_expr_with_lowered_type): Don't look through NOP_EXPR.
1466 PR c++/82165 - enum bitfields and operator overloading.
1467 * call.c (build_new_op_1): Use unlowered_expr_type.
1469 * call.c (build_new_op_1): Don't apply any standard conversions to
1470 the operands of a built-in operator. Don't suppress conversions in
1472 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
1474 2019-09-15 Marek Polacek <polacek@redhat.com>
1476 PR c++/91740 - ICE with constexpr call and ?: in ARRAY_REF.
1477 * pt.c (build_non_dependent_expr): Call build_non_dependent_expr for
1480 2019-09-15 Nathan Sidwell <nathan@acm.org>
1482 * cp-tree.h (DECL_CLONED_FUNCTION_P): Reimplement using
1483 IDENTIFIER_CDTOR_P, correct documentation.
1484 (DECL_CLONED_FUNCTION): Directly access field.
1485 (decl_cloned_function_p): Delete.
1486 * class.c (decl_cloned_function_p): Delete.
1487 * pt.c (instantiate_template_1): Check DECL_CHAIN is a decl.
1489 2019-09-11 Nathan Sidwell <nathan@acm.org>
1491 * c-objcp-common.c (cp-objcp-common.c): Alphababetize and
1492 correctly mark all C++ nodes.
1493 * decl.c (cp_tree_node_structure): Alphabetize.
1495 2019-09-10 Marek Polacek <polacek@redhat.com>
1497 PR c++/91673 - ICE with noexcept in alias-declaration.
1498 * parser.c (CP_PARSER_FLAGS_DELAY_NOEXCEPT): New parser flag.
1499 (cp_parser_lambda_declarator_opt): Pass CP_PARSER_FLAGS_NONE to
1500 cp_parser_exception_specification_opt.
1501 (cp_parser_direct_declarator): Adjust a call to
1502 cp_parser_exception_specification_opt.
1503 (cp_parser_member_declaration): Pass CP_PARSER_FLAGS_DELAY_NOEXCEPT
1504 to cp_parser_declarator if not processing a friend or typedef
1506 (cp_parser_late_noexcept_specifier): Adjust a call to
1507 cp_parser_noexcept_specification_opt.
1508 (cp_parser_noexcept_specification_opt): New parameter for parser flags,
1509 drop the FRIEND_P parameter. Use the new parameter.
1510 (cp_parser_exception_specification_opt): Likewise.
1511 (cp_parser_transaction): Adjust a call to
1512 cp_parser_noexcept_specification_opt.
1513 (cp_parser_transaction_expression): Likewise.
1515 2019-09-10 Marek Polacek <polacek@redhat.com>
1517 PR c++/91705 - constexpr evaluation rejects ++/-- on floats.
1518 * constexpr.c (cxx_eval_increment_expression): Call fold_simple on
1521 2019-09-10 Paolo Carlini <paolo.carlini@oracle.com>
1523 * decl.c (has_designator_problem): Use cp_expr_loc_or_input_loc
1525 (build_enumerator): Likewise.
1526 (cp_finish_decl): Use DECL_SOURCE_LOCATION.
1527 (grokdeclarator): Use id_loc in two error_at; change errror
1528 message about constinit together constexpr to use two ranges.
1530 2019-09-09 Marek Polacek <polacek@redhat.com>
1532 PR c++/84374 - diagnose invalid uses of decltype(auto).
1533 * decl.c (grokdeclarator): Diagnose wrong usage of decltype(auto) in
1534 a function declaration.
1536 2019-09-06 Nathan Sidwell <nathan@acm.org>
1539 * cp-tree.h (IDENTIFIER_REPO_CHOSEN, DECL_REPO_AVAILABLE_P): Delete.
1540 (struct lang_decl_base): Remove repo_available_p.
1541 * decl.c (duplicate_decls): Don't copy DECL_REPO_AVAILABLE_P.
1543 (Reserve TREE_LANG_FLAG_3 for modules.
1544 * cp-tree.h (DECL_CONSTRUCTION_VTABLE_P): Delete.
1545 (DECL_NON_TRIVIALLY_INITIALIZED_P): Move to TREE_LANG_FLAG_6.
1546 * class.c (build_ctor_vtbl_group): Don't set
1547 DECL_CONSTRUCTION_VTABLE_P.
1548 * decl2.c (determine_visibility_from_class): Don't check
1549 DECL_CONSTRUCTION_VTABLE_P anymore.
1551 2019-09-06 Martin Liska <mliska@suse.cz>
1554 * Make-lang.in: Remove repo.o.
1555 * config-lang.in: Likewise.
1556 * cp-tree.h (init_repo): Remove declarations
1557 of repo-related functions.
1558 (repo_emit_p): Likewise.
1559 (repo_export_class_p): Likewise.
1560 (finish_repo): Likewise.
1561 * decl2.c (import_export_class): Always
1563 (mark_needed): Remove -frepo from comment.
1564 (import_export_decl): Similarly here.
1565 (c_parse_final_cleanups): Remove call of finish_repo.
1566 * lex.c (cxx_init): Remove call to init_repo.
1567 * optimize.c (can_alias_cdtor): Remove dead condition.
1568 * pt.c (push_template_decl_real): Update comment.
1569 (instantiate_decl): Remove dead code used for -frepo.
1572 2019-09-05 Marek Polacek <polacek@redhat.com>
1574 PR c++/91644 - ICE with constinit in function template.
1575 * decl.c (start_decl): Call retrofit_lang_decl for constinit variables.
1576 * pt.c (tsubst_expr): Pass LOOKUP_CONSTINIT down to cp_finish_decl for
1577 constinit variables.
1579 2019-09-05 Nathan Sidwell <nathan@acm.org>
1581 * cp-tree.h (DECL_VTABLE_OR_VTT_P): Forward to DECL_VIRTUAL_P.
1583 2019-09-04 Marek Polacek <polacek@redhat.com>
1585 * call.c (build_over_call): Remove -fdeduce-init-list implementation.
1586 * pt.c (unify): Likewise.
1588 2019-09-01 Marek Polacek <polacek@redhat.com>
1590 PR c++/91129 - wrong error with binary op in template argument.
1591 * typeck.c (warn_for_null_address): Use fold_for_warn instead of
1592 fold_non_dependent_expr.
1593 (cp_build_binary_op): Likewise.
1595 2019-08-30 Jason Merrill <jason@redhat.com>
1597 Add source location to TRAIT_EXPR.
1598 * cp-tree.h (TRAIT_EXPR_LOCATION): New.
1599 (struct tree_trait_expr): Add locus field.
1600 * parser.c (cp_parser_trait_expr): Pass trait_loc down.
1601 * pt.c (tsubst_copy_and_build) [TRAIT_EXPR]: Likewise.
1602 * semantics.c (finish_trait_expr): Add location parm.
1603 * tree.c (cp_expr_location): Handle TRAIT_EXPR.
1605 2019-08-29 Paolo Carlini <paolo.carlini@oracle.com>
1607 * decl.c (check_var_type): Add location_t parameter and use it.
1608 (grokdeclarator): Adjust call.
1609 * pt.c (tsubst_decl): Likewise.
1610 * cp-tree.h: Adjust declaration.
1612 2019-08-28 Marek Polacek <polacek@redhat.com>
1614 Implement P1152R4: Deprecating some uses of volatile.
1616 * cp-gimplify.c (cp_fold): Set TREE_THIS_VOLATILE.
1617 * decl.c (grokdeclarator): Warn about a volatile-qualified structured
1618 binding and return type.
1619 (grokparms): Warn about a volatile-qualified function parameter.
1620 * expr.c (mark_use) <case MODIFY_EXPR>: Emit a -Wvolatile warning.
1621 * typeck.c (cp_build_unary_op): Emit a -Wvolatile warning for pre and
1622 post ++/-- on a volatile operand.
1623 (genericize_compound_lvalue): Use a better location. Don't lose
1625 (cp_build_modify_expr): Emit a -Wvolatile warning for a compound
1626 assignment whose LHS is volatile-qualified. Build the assignment with
1627 a more precise location.
1629 2019-08-28 Marek Polacek <polacek@redhat.com>
1631 PR c++/91360 - Implement C++20 P1143R2: constinit.
1632 * cp-tree.h (TINFO_VAR_DECLARED_CONSTINIT): Define.
1633 (LOOKUP_CONSTINIT): Define.
1634 (enum cp_decl_spec): Add ds_constinit.
1635 * decl.c (check_tag_decl): Give an error for constinit in type
1637 (check_initializer): Also check LOOKUP_CONSTINIT.
1638 (cp_finish_decl): Add checking for a constinit declaration. Set
1639 TINFO_VAR_DECLARED_CONSTINIT.
1640 (grokdeclarator): Add checking for a declaration with the constinit
1642 * lex.c (init_reswords): Handle D_CXX20.
1643 * parser.c (cp_lexer_get_preprocessor_token): Pass a better location
1644 to warning_at. Warn about C++20 keywords.
1645 (cp_keyword_starts_decl_specifier_p): Handle RID_CONSTINIT.
1646 (cp_parser_diagnose_invalid_type_name): Add an inform about constinit.
1647 (cp_parser_decomposition_declaration): Maybe pass LOOKUP_CONSTINIT to
1649 (cp_parser_decl_specifier_seq): Handle RID_CONSTINIT.
1650 (cp_parser_init_declarator): Maybe pass LOOKUP_CONSTINIT to
1652 (set_and_check_decl_spec_loc): Add "constinit".
1653 * pt.c (tsubst_decl): Set TINFO_VAR_DECLARED_CONSTINIT.
1654 (instantiate_decl): Maybe pass LOOKUP_CONSTINIT to cp_finish_decl.
1655 * typeck2.c (store_init_value): If a constinit variable wasn't
1656 initialized using a constant initializer, give an error.
1658 2019-08-28 Nathan Sidwell <nathan@acm.org>
1661 * name-lookup.c (cp_emit_debug_info): Check for builtins during
1664 2019-08-27 Marek Polacek <polacek@redhat.com>
1666 PR c++/81676 - bogus -Wunused warnings in constexpr if.
1667 * semantics.c (maybe_mark_exp_read_r): New function.
1668 (finish_if_stmt): Call it on THEN_CLAUSE and ELSE_CLAUSE.
1670 PR c++/91428 - warn about std::is_constant_evaluated in if constexpr.
1671 * cp-tree.h (decl_in_std_namespace_p): Declare.
1672 * semantics.c (is_std_constant_evaluated_p): New.
1673 (finish_if_stmt_cond): Warn about "std::is_constant_evaluated ()" in
1675 * typeck.c (decl_in_std_namespace_p): No longer static.
1677 2019-08-26 Jason Merrill <jason@redhat.com>
1679 * decl.c (duplicate_decls): Always merge DECL_DECLARED_CONSTEXPR_P.
1681 2019-08-26 Marek Polacek <polacek@redhat.com>
1683 PR c++/91545 - ICE in constexpr store evaluation.
1684 * constexpr.c (cxx_eval_store_expression): Check FIELD_DECL instead
1687 2019-08-24 Nathan Sidwell <nathan@acm.org>
1689 * class.c (check_for_overrides): Conversion operators need
1692 2019-08-24 Paolo Carlini <paolo.carlini@oracle.com>
1694 * semantics.c (finish_switch_cond): Improve error message location.
1696 2019-08-23 Jason Merrill <jason@redhat.com>
1698 * decl2.c (decl_dependent_p): New.
1699 (mark_used): Check it instead of just processing_template_decl.
1701 2019-08-23 Jason Merrill <jason@redhat.com>
1703 * parser.c (cp_parser_nested_name_specifier_opt): Avoid redundant
1706 2019-08-23 Marek Polacek <polacek@redhat.com>
1708 PR c++/91521 - wrong error with operator->.
1709 * decl.c (grokdeclarator): Return error_mark_node for an invalid
1710 trailing return type.
1712 PR c++/79817 - attribute deprecated on namespace.
1713 * cp-tree.h (cp_warn_deprecated_use_scopes): Declare.
1714 * decl.c (grokdeclarator): Call cp_warn_deprecated_use_scopes.
1715 (type_is_deprecated): Likewise.
1716 * decl2.c (cp_warn_deprecated_use_scopes): New function.
1717 * name-lookup.c (handle_namespace_attrs): Handle attribute deprecated.
1718 * parser.c (cp_parser_namespace_alias_definition): Call
1719 cp_warn_deprecated_use_scopes.
1720 (cp_parser_using_declaration): Likewise.
1721 (cp_parser_using_directive): Likewise.
1722 * semantics.c (finish_id_expression_1): Likewise.
1724 2019-08-23 Nathan Sidwell <nathan@acm.org>
1726 * class.c (check_for_override): Checking IDENTIFIER_VIRTUAL_P is
1727 sufficient, reorder DECL_OVERRIDE_P check.
1729 2019-08-23 Iain Sandoe <iain@sandoe.co.uk>
1732 * parser.c (cp_parser_initial_pragma): Call c_common_no_more_pch ()
1733 after determining that the first token is not
1734 PRAGMA_GCC_PCH_PREPROCESS.
1736 2019-08-22 Marek Polacek <polacek@redhat.com>
1738 PR c++/91304 - prefix attributes ignored in condition.
1739 * parser.c (cp_parser_condition): Handle prefix attributes.
1741 2019-08-21 Richard Sandiford <richard.sandiford@arm.com>
1744 * decl.c (duplicate_decls): Call copy_attributes_to_builtin inside
1745 the BUILT_IN_NORMAL block rather than afterward.
1747 2019-08-19 Marek Polacek <polacek@redhat.com>
1749 PR c++/91264 - detect modifying const objects in constexpr.
1750 * constexpr.c (modifying_const_object_error): New function.
1751 (cxx_eval_call_expression): Set TREE_READONLY on a CONSTRUCTOR of
1752 a const-qualified object after it's been fully constructed.
1753 (modifying_const_object_p): New function.
1754 (cxx_eval_store_expression): Detect modifying a const object
1755 during constant expression evaluation.
1756 (cxx_eval_increment_expression): Use a better location when building
1758 (cxx_eval_constant_expression) <case DECL_EXPR>: Mark a constant
1759 object's constructor TREE_READONLY.
1761 2019-08-15 Jason Merrill <jason@redhat.com>
1763 PR c++/90393 - ICE with thow in ?:
1765 PR c++/64372, DR 1560 - Gratuitous lvalue-to-rvalue conversion in ?:
1766 * tree.c (lvalue_kind): Handle throw in one arm.
1767 * typeck.c (rationalize_conditional_expr): Likewise.
1768 (cp_build_modify_expr): Likewise.
1770 2019-08-14 Jason Merrill <jason@redhat.com>
1772 Implement P0848R3, Conditionally Trivial Special Member Functions.
1773 * tree.c (special_memfn_p): New.
1774 * class.c (add_method): When overloading, hide ineligible special
1776 (check_methods): Set TYPE_HAS_COMPLEX_* here.
1777 * decl.c (grok_special_member_properties): Not here.
1778 * name-lookup.c (push_class_level_binding_1): Move overloaded
1779 functions case down, accept FUNCTION_DECL as target_decl.
1781 2019-08-14 Jonathan Wakely <jwakely@redhat.com>
1784 * name-lookup.c (get_std_name_hint): Fix min_dialect field for
1785 complex_literals and make_unique entries.
1787 2019-08-14 Jakub Jelinek <jakub@redhat.com>
1788 Marek Polacek <polacek@redhat.com>
1790 PR c++/91391 - bogus -Wcomma-subscript warning.
1791 * parser.c (cp_parser_postfix_open_square_expression): Don't warn about
1792 a deprecated comma here. Pass warn_comma_subscript down to
1793 cp_parser_expression.
1794 (cp_parser_expression): New bool parameter. Warn about uses of a comma
1795 operator within a subscripting expression.
1796 (cp_parser_skip_to_closing_square_bracket): Revert to pre-r274121 state.
1797 (cp_parser_skip_to_closing_square_bracket_1): Remove.
1799 2019-08-14 Jonathan Wakely <jwakely@redhat.com>
1801 * name-lookup.c (get_std_name_hint): Add more entries.
1803 2019-08-14 Paolo Carlini <paolo.carlini@oracle.com>
1805 * decl2.c (grok_array_decl): Use the location of the open square
1806 bracket in error message about invalid types.
1808 2019-08-14 Paolo Carlini <paolo.carlini@oracle.com>
1810 * decl.c (grokdeclarator): Check here for typedef a function
1811 definition or a member function definition.
1812 (start_function): Adjust.
1813 (grokmethod): Likewise.
1815 2019-08-13 Richard Sandiford <richard.sandiford@arm.com>
1818 * decl.c (duplicate_decls): Use copy_decl_built_in_function.
1819 * pt.c (declare_integer_pack): Use set_decl_built_in_function.
1821 2019-08-13 Marek Polacek <polacek@redhat.com>
1823 PR c++/90473 - wrong code with nullptr in default argument.
1824 * call.c (null_ptr_cst_p): Update quote from the standard.
1825 * decl.c (check_default_argument): Don't return nullptr when the arg
1828 2019-08-13 Marek Polacek <polacek@redhat.com>
1830 * cp-tree.h (DECL_MUTABLE_P): Use FIELD_DECL_CHECK.
1832 2019-08-10 Jakub Jelinek <jakub@redhat.com>
1834 * parser.c (cp_parser_omp_clause_name): Parse device_type.
1835 (cp_parser_omp_clause_device_type): New function.
1836 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
1837 (OMP_DECLARE_TARGET_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
1838 (cp_parser_omp_declare_target): Handle device_type clauses. Remove
1839 diagnostics for declare target with clauses nested in clause-less
1840 declare target declaration-definition-seq.
1841 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_DEVICE_TYPE.
1843 2019-08-09 Jakub Jelinek <jakub@redhat.com>
1845 * parser.c (check_no_duplicate_clause): Simplify using
1847 (cp_parser_omp_clause_if): Fix up printing of target {enter,exit} data
1848 directive name modifiers.
1851 * parser.c (cp_parser_omp_clause_dist_schedule): Comment out the
1852 check_no_duplicate_clause call, instead emit a warning for duplicate
1853 dist_schedule clauses.
1855 2019-08-08 Paolo Carlini <paolo.carlini@oracle.com>
1857 * decl.c (grokdeclarator): Use id_loc and EXPR_LOCATION in
1858 a few error messages.
1860 2019-08-08 Marek Polacek <polacek@redhat.com>
1862 PR c++/87519 - bogus warning with -Wsign-conversion.
1863 * typeck.c (cp_build_binary_op): Use same_type_p instead of comparing
1866 * constexpr.c (inline_asm_in_constexpr_error): New.
1867 (cxx_eval_constant_expression) <case ASM_EXPR>: Call it.
1868 (potential_constant_expression_1) <case ASM_EXPR>: Likewise.
1870 2019-08-08 Jakub Jelinek <jakub@redhat.com>
1872 * semantics.c (finish_omp_clauses): For C_ORT_OMP
1873 OMP_CLAUSE_USE_DEVICE_* clauses use oacc_reduction_head bitmap
1874 instead of generic_head to track duplicates.
1876 2019-08-07 Marek Polacek <polacek@redhat.com>
1878 PR c++/81429 - wrong parsing of constructor with C++11 attribute.
1879 * parser.c (cp_parser_constructor_declarator_p): Handle the scenario
1880 when a parameter declaration begins with [[attribute]].
1882 2019-08-07 Marek Polacek <polacek@redhat.com>
1884 PR c++/91346 - Implement P1668R1, allow unevaluated asm in constexpr.
1885 * constexpr.c (cxx_eval_constant_expression): Handle ASM_EXPR.
1886 (potential_constant_expression_1) <case ASM_EXPR>: Allow.
1887 * cp-tree.h (finish_asm_stmt): Adjust.
1888 * parser.c (cp_parser_asm_definition): Grab the locaion of "asm" and
1889 use it. Change an error to a pedwarn. Allow asm in C++2a, warn
1891 * pt.c (tsubst_expr): Pass a location down to finish_asm_stmt.
1892 * semantics.c (finish_asm_stmt): New location_t parameter. Use it.
1894 2019-08-07 Jakub Jelinek <jakub@redhat.com>
1896 * parser.c (cp_parser_omp_clause_name): Parse use_device_addr clause.
1897 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
1898 (OMP_TARGET_DATA_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
1899 (cp_parser_omp_target_data): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR
1900 like PRAGMA_OMP_CLAUSE_USE_DEVICE_PTR, adjust diagnostics about no
1901 map or use_device_* clauses.
1902 * semantics.c (finish_omp_clauses): For OMP_CLAUSE_USE_DEVICE_PTR
1903 in OpenMP, require pointer or reference to pointer type rather than
1904 pointer or array or reference to pointer or array type. Handle
1905 OMP_CLAUSE_USE_DEVICE_ADDR.
1906 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_USE_DEVICE_ADDR.
1908 2019-08-06 Jason Merrill <jason@redhat.com>
1910 PR c++/91378 - ICE with noexcept and auto return type.
1911 * pt.c (maybe_instantiate_noexcept): push_to_top_level.
1913 2019-08-06 Paolo Carlini <paolo.carlini@oracle.com>
1915 * decl.c (check_array_designated_initializer): Use
1916 cp_expr_loc_or_input_loc in one place.
1918 2019-08-06 Jakub Jelinek <jakub@redhat.com>
1920 * parser.c (cp_parser_omp_for_loop): For OMP_LOOP, ignore parallel
1921 clauses and predetermine iterator as lastprivate.
1922 * semantics.c (handle_omp_for_class_iterator): Use
1923 OMP_CLAUSE_LASTPRIVATE_LOOP_IV instead of
1924 OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV, set it for lastprivate also
1925 on OMP_LOOP construct. If a clause is missing for class iterator
1926 on OMP_LOOP, add firstprivate clause, and if there is private
1927 clause, turn it into firstprivate too.
1928 (finish_omp_for): Formatting fix. For OMP_LOOP, adjust
1929 OMP_CLAUSE_LASTPRIVATE_LOOP_IV clause CP_CLAUSE_INFO, so that it
1930 uses copy ctor instead of default ctor.
1931 * cp-gimplify.c (cp_gimplify_expr): Handle OMP_LOOP like
1933 (cp_fold_r): Likewise.
1934 (cp_genericize_r): Likewise.
1935 (cxx_omp_finish_clause): Also finish lastprivate clause with
1936 OMP_CLAUSE_LASTPRIVATE_LOOP_IV flag.
1937 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_BIND.
1938 (tsubst_omp_for_iterator): For OMP_LOOP, ignore parallel
1939 clauses and predetermine iterator as lastprivate.
1940 * constexpr.c (potential_constant_expression_1): Handle OMP_LOOP
1941 like OMP_DISTRIBUTE etc.
1943 2019-08-05 Marek Polacek <polacek@redhat.com>
1945 DR 2413 - typename in conversion-function-ids.
1946 * parser.c (cp_parser_conversion_type_id): Call
1947 cp_parser_type_specifier_seq with CP_PARSER_FLAGS_TYPENAME_OPTIONAL
1948 instead of CP_PARSER_FLAGS_NONE.
1950 2019-08-05 Paolo Carlini <paolo.carlini@oracle.com>
1952 * cp-tree.h (cp_expr_loc_or_input_loc): New.
1953 (cxx_incomplete_type_diagnostic): Use it.
1954 * call.c (build_converted_constant_expr_internal, convert_like_real,
1955 convert_arg_to_ellipsis, convert_for_arg_passing, build_over_call,
1956 build_cxx_call, perform_implicit_conversion_flags,
1957 initialize_reference): Likewise.
1958 * constexpr.c (cxx_eval_internal_function, cxx_eval_call_expression,
1959 eval_and_check_array_index, cxx_eval_store_expression,
1960 cxx_eval_statement_list, cxx_eval_loop_expr,
1961 cxx_eval_constant_expression, potential_constant_expression_1):
1963 * constraint.cc (check_for_logical_overloads,
1964 satisfy_predicate_constraint): Likewise.
1965 * cp-gimplify.c (cp_gimplify_expr): Likewise.
1966 * cvt.c (cp_convert_to_pointer, convert_to_reference,
1967 cp_convert_and_check, ocp_convert, maybe_warn_nodiscard): Likewise.
1968 * decl.c (pop_switch): Likewise.
1969 * decl2.c (delete_sanity): Likewise.
1970 * error.c (location_of): Likewise.
1971 * init.c (maybe_warn_list_ctor, build_aggr_init,
1972 warn_placement_new_too_small, build_new_1, build_vec_init): Likewise.
1973 * lex.c (unqualified_name_lookup_error): Likewise.
1974 * parser.c (cp_parser_initializer_list, cp_parser_omp_for_cond):
1976 * pt.c (check_for_bare_parameter_packs, check_valid_ptrmem_cst_expr,
1977 unify_arg_conversion, convert_nontype_argument,
1978 tsubst_copy_and_build, resolve_typename_type): Likewise.
1979 * semantics.c (maybe_convert_cond, finish_call_expr,
1980 cp_build_vec_convert): Likewise.
1981 * typeck.c (decay_conversion, rationalize_conditional_expr,
1982 cp_build_unary_op, build_x_compound_expr_from_list,
1983 maybe_warn_about_returning_address_of_local,
1984 maybe_warn_pessimizing_move): Likewise.
1985 * typeck2.c (check_narrowing, digest_init_r,
1986 process_init_constructor_array): Likewise.
1988 2019-08-05 Tom Honermann <tom@honermann.net>
1990 * parser.c (cp_parser_template_declaration_after_parameters): Enable
1991 class template argument deduction for non-type template parameters
1992 in literal operator templates.
1994 2019-08-05 Marek Polacek <polacek@redhat.com>
1996 PR c++/91338 - Implement P1161R3: Deprecate a[b,c].
1997 * parser.c (cp_parser_postfix_open_square_expression): Warn about uses
1998 of a comma operator within a subscripting expression.
1999 (cp_parser_skip_to_closing_square_bracket_1): New function, made out
2001 (cp_parser_skip_to_closing_square_bracket): ...this.
2003 2019-08-05 Jason Merrill <jason@redhat.com>
2005 * semantics.c (force_paren_expr): Preserve location.
2007 2019-08-02 Marek Polacek <polacek@redhat.com>
2009 PR c++/91230 - wrong error with __PRETTY_FUNCTION__ and generic lambda.
2010 * pt.c (value_dependent_expression_p): Consider __PRETTY_FUNCTION__
2011 inside a template function value-dependent.
2013 2019-08-02 Paolo Carlini <paolo.carlini@oracle.com>
2015 * tree.c (handle_nodiscard_attribute): Do not warn about nodiscard
2016 applied to a constructor.
2018 2019-08-02 Martin Liska <mliska@suse.cz>
2020 * decl.c (grok_op_properties):
2021 Mark DECL_SET_IS_OPERATOR_DELETE for user-provided delete operators.
2023 2019-08-01 Martin Sebor <msebor@redhat.com>
2026 * decl.c (reshape_init_array_1): Avoid truncating initializer
2027 lists containing string literals.
2029 2019-08-01 Marek Polacek <polacek@redhat.com>
2031 PR c++/90805 - detect narrowing in case values.
2032 * decl.c (case_conversion): Detect narrowing in case values.
2034 2019-07-31 Paolo Carlini <paolo.carlini@oracle.com>
2036 * decl2.c (delete_sanity): Improve diagnostic locations, use
2037 cp_expr_loc_or_loc in four places.
2039 2019-07-31 Jason Merrill <jason@redhat.com>
2041 PR c++/90538 - multiple expansions of capture packs
2042 * cp-tree.h (DECLTYPE_FOR_INIT_CAPTURE): Remove.
2043 * lambda.c (add_capture): Copy parameter packs from init.
2044 (lambda_capture_field_type): Always use auto for init-capture.
2045 * pt.c (uses_parameter_packs): Return tree.
2046 (tsubst) [DECLTYPE_TYPE]: Remove init-capture handling.
2047 (gen_elem_of_pack_expansion_instantiation): Don't push
2048 local_specialization_stack.
2049 (prepend_one_capture): New.
2050 (tsubst_lambda_expr): Use it. Don't touch local_specializations.
2051 (do_auto_deduction): Avoid redundant error.
2053 Fix copy_node of TEMPLATE_INFO.
2054 * cp-tree.h (struct tree_template_info): Use tree_base instead of
2055 tree_common. Add tmpl and args fields.
2056 (TI_TEMPLATE, TI_ARGS): Adjust.
2058 2019-07-30 Martin Liska <mliska@suse.cz>
2060 PR tree-optimization/91270
2061 * tree-ssa-dce.c (propagate_necessity): Mark 2nd argument
2062 of delete operator as needed.
2064 2019-07-25 Martin Liska <mliska@suse.cz>
2065 Dominik Infuhr <dominik.infuehr@theobroma-systems.com>
2068 * decl.c (cxx_init_decl_processing): Mark delete operators
2069 with DECL_SET_IS_OPERATOR_DELETE.
2071 2019-07-25 Martin Liska <mliska@suse.cz>
2073 * decl.c (duplicate_decls): Use new macros
2074 (e.g. DECL_SET_LAMBDA_FUNCTION and DECL_LAMBDA_FUNCTION_P).
2075 (cxx_init_decl_processing): Likewise.
2076 (grok_op_properties): Likewise.
2077 * parser.c (cp_parser_lambda_declarator_opt): Likewise.
2079 2019-07-24 Martin Sebor <msebor@redhat.com>
2082 * decl.c (finish_function): Use lang_mask.
2084 2019-07-20 Jason Merrill <jason@redhat.com>
2086 * cp-tree.h (ovl_iterator::using_p): A USING_DECL by itself was also
2087 introduced by a using-declaration.
2089 2019-07-20 Jason Merrill <jason@redhat.com>
2091 Reduce memory consumption for push/pop_access_scope.
2092 * name-lookup.c (leave_scope): Do add class levels other than
2093 previous_class_level to free_binding_level.
2094 (invalidate_class_lookup_cache): Move from class.c, add to
2096 * pt.c (saved_access_scope): Change from list to vec.
2098 2019-07-20 Jakub Jelinek <jakub@redhat.com>
2100 * cp-tree.h (OMP_FOR_GIMPLIFYING_P): Use OMP_LOOPING_CHECK
2101 instead of OMP_LOOP_CHECK.
2102 * parser.c (cp_parser_omp_clause_name): Handle bind clause.
2103 (cp_parser_omp_clause_bind): New function.
2104 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_BIND.
2105 (OMP_LOOP_CLAUSE_MASK): Define.
2106 (cp_parser_omp_loop): New function.
2107 (cp_parser_omp_parallel, cp_parser_omp_teams): Handle parsing of
2108 loop combined with parallel or teams.
2109 (cp_parser_omp_construct): Handle PRAGMA_OMP_LOOP.
2110 (cp_parser_pragma): Likewise.
2111 * pt.c (tsubst_expr): Handle OMP_LOOP.
2112 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_BIND.
2114 2019-07-19 Jason Merrill <jason@redhat.com>
2116 PR c++/90101 - dependent class non-type parameter.
2117 * pt.c (invalid_nontype_parm_type_p): Check for dependent class type.
2119 2019-07-18 Jason Merrill <jason@redhat.com>
2121 PR c++/90098 - partial specialization and class non-type parms.
2124 * call.c (build_converted_constant_expr_internal): Don't copy.
2125 * pt.c (process_partial_specialization): Allow VIEW_CONVERT_EXPR
2126 around class non-type parameter.
2127 (unify) [TEMPLATE_PARM_INDEX]: Ignore cv-quals.
2129 2019-07-16 Jason Merrill <jason@redhat.com>
2131 * parser.c (make_location): Add overload taking cp_lexer* as last
2134 * parser.c (cp_parser_simple_type_specifier): Separate tentative
2135 parses for optional type-spec and CTAD.
2137 * parser.c (cp_parser_nested_name_specifier_opt): If the token is
2138 already CPP_NESTED_NAME_SPECIFIER, leave it alone.
2140 2019-07-12 Jakub Jelinek <jakub@redhat.com>
2142 * parser.c (cp_parser_omp_clause_name): Handle order clause.
2143 (cp_parser_omp_clause_order): New function.
2144 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_ORDER.
2145 (OMP_SIMD_CLAUSE_MASK, OMP_FOR_CLAUSE_MASK): Add
2146 PRAGMA_OMP_CLAUSE_ORDER.
2147 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_ORDER.
2148 * pt.c (tsubst_omp_clauses): Likewise.
2150 2019-07-10 Paolo Carlini <paolo.carlini@oracle.com>
2152 * decl.c (get_type_quals,
2153 smallest_type_location (const cp_decl_specifier_seq*)): New.
2154 (check_tag_decl): Use smallest_type_location in error_at about
2155 multiple types in one declaration.
2156 (grokdeclarator): Use locations[ds_complex] in error_at about
2157 complex invalid; use locations[ds_storage_class] in error_at
2158 about static cdtor; use id_loc in error_at about flexible
2159 array member in union; use get_type_quals.
2161 2019-07-09 Martin Sebor <msebor@redhat.com>
2164 * cp-tree.h: Change class-key of PODs to struct and others to class.
2166 * semantics.c (finalize_nrv_r): Same.
2168 2019-07-09 Martin Sebor <msebor@redhat.com>
2171 * constexpr.c (cxx_eval_call_expression): Change class-key from class
2172 to struct and vice versa to match convention and avoid -Wclass-is-pod
2173 and -Wstruct-no-pod.
2174 * constraint.cc (get_concept_definition): Same.
2176 * cxx-pretty-print.h: Same.
2178 * logic.cc (term_list::replace): Same.
2179 * name-lookup.c (find_local_binding): Same.
2180 * pt.c (tsubst_binary_right_fold): Same.
2181 * search.c (field_accessor_p): Same.
2182 * semantics.c (expand_or_defer_fn): Same.
2184 2019-07-08 Jakub Jelinek <jakub@redhat.com>
2187 * decl2.c (cp_omp_mappable_type_1): Don't emit any note for
2188 error_mark_node type.
2190 2019-07-05 Jakub Jelinek <jakub@redhat.com>
2194 * call.c (build_new_method_call_1): Remove set but not used variable
2197 2019-07-05 Paolo Carlini <paolo.carlini@oracle.com>
2199 PR c++/67184 (again)
2201 * call.c (build_over_call): Devirtualize user-defined operators
2202 coming from a base too.
2203 (build_new_method_call_1): Do not devirtualize here.
2205 2019-07-04 Marek Polacek <polacek@redhat.com>
2208 PR c++/83374 - __is_standard_layout wrong for a class with repeated
2210 * class.c (check_bases): Set CLASSTYPE_NON_STD_LAYOUT for a class if
2211 CLASSTYPE_REPEATED_BASE_P is true.
2213 2019-07-04 Andrew Stubbs <ams@codesourcery.com>
2215 * cp-tree.h (cp_omp_emit_unmappable_type_notes): New prototype.
2216 * decl.c (cp_finish_decl): Call cp_omp_emit_unmappable_type_notes.
2217 * decl2.c (cp_omp_mappable_type): Move contents to ...
2218 (cp_omp_mappable_type_1): ... here and add note output.
2219 (cp_omp_emit_unmappable_type_notes): New function.
2220 * semantics.c (finish_omp_clauses): Call
2221 cp_omp_emit_unmappable_type_notes in four places.
2223 2019-07-03 Martin Liska <mliska@suse.cz>
2225 * call.c (build_new_op_1): Remove dead assignemts.
2226 * typeck.c (cp_build_binary_op): Likewise.
2228 2019-06-27 Jason Merrill <jason@redhat.com>
2230 PR c++/55442 - memory-hog with highly recursive constexpr.
2231 * constexpr.c (push_cx_call_context): Return depth.
2232 (cxx_eval_call_expression): Don't cache past constexpr_cache_depth.
2234 2019-06-27 Jan Hubicka <jh@suse.cz>
2236 * class.c (layout_class_type): Set TYPE_CXX_ODR_P for as-base
2239 2019-06-27 Martin Liska <mliska@suse.cz>
2241 * class.c (adjust_clone_args): Remove obviously
2243 (dump_class_hierarchy_r): Likewise.
2244 * decl.c (check_initializer): Likewise.
2245 * parser.c (cp_parser_lambda_expression): Likewise.
2246 * pt.c (unify_bound_ttp_args): Likewise.
2247 (convert_template_argument): Likewise.
2248 * rtti.c (build_headof): Likewise.
2249 * typeck.c (convert_for_initialization): Likewise.
2251 2019-06-25 Jason Merrill <jason@redhat.com>
2253 PR c++/70462 - unnecessary base ctor variant with final.
2254 * optimize.c (populate_clone_array): Skip base variant if
2256 (maybe_clone_body): We don't need an alias if we are only defining
2259 * class.c (resolves_to_fixed_type_p): Check CLASSTYPE_FINAL.
2261 2019-06-25 Jakub Jelinek <jakub@redhat.com>
2264 * constexpr.c (cxx_eval_array_reference): Don't look through VCE from
2265 vector type if lval.
2267 2019-06-25 Jozef Lawrynowicz <jozef.l@mittosystems.com>
2269 * lex.c (init_reswords): Create keyword for "__intN__" type.
2270 * cp-tree.h (cp_decl_specifier_seq): New bitfield "int_n_alt".
2271 * decl.c (grokdeclarator): Don't pedwarn about "__intN" ISO
2272 C incompatibility if alternate "__intN__" form is used.
2273 * parser.c (cp_parser_simple_type_specifier): Set
2274 decl_specs->int_n_alt if "__intN__" form is used.
2276 2019-06-24 Jan Hubicka <jh@suse.cz>
2278 * lex.c (cxx_make_type): Set TYPE_CXX_ODR_P.
2280 2019-06-24 Jason Merrill <jason@redhat.com>
2282 * class.c (layout_class_type): Don't use a separate
2283 CLASSTYPE_AS_BASE if it's the same size.
2285 2019-06-23 Marek Polacek <polacek@redhat.com>
2287 * call.c (convert_default_arg): Use DEFERRED_PARSE instead of
2289 * cp-objcp-common.c (cp_tree_size): Likewise. Use tree_deferred_parse
2290 instead of tree_default_arg.
2291 * cp-tree.def: Rename DEFAULT_ARG to DEFERRED_PARSE.
2292 * cp-tree.h: Rename DEFARG_TOKENS to DEFPARSE_TOKENS. Rename
2293 DEFARG_INSTANTIATIONS to DEFPARSE_INSTANTIATIONS. Rename
2294 tree_default_arg to tree_deferred_parse.
2295 (UNPARSED_NOEXCEPT_SPEC_P): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2296 (cp_tree_node_structure_enum): Rename TS_CP_DEFAULT_ARG to
2297 TS_CP_DEFERRED_PARSE.
2298 (lang_tree_node): Rename tree_default_arg to tree_deferred_parse.
2299 Rename default_arg to deferred_parse. Use TS_CP_DEFERRED_PARSE instead
2300 of TS_CP_DEFAULT_ARG.
2301 (defarg_location): Remove declaration.
2302 (defparse_location): Add declaration.
2303 * decl.c (grokfndecl): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2304 Call defparse_location instead of defarg_location.
2305 (check_default_argument): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2306 (cp_tree_node_structure): Likewise. Use TS_CP_DEFERRED_PARSE instead
2307 of TS_CP_DEFAULT_ARG.
2308 * decl2.c (grokfield): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2309 * error.c (dump_expr): Likewise.
2310 (location_of): Likewise.
2311 * init.c (get_nsdmi): Likewise.
2312 * parser.c (cp_parser_save_noexcept): Likewise. Use DEFPARSE_TOKENS
2313 instead of DEFARG_TOKENS.
2314 (cp_parser_late_noexcept_specifier): Likewise.
2315 (cp_parser_late_parse_one_default_arg): Use DEFPARSE_TOKENS instead
2317 (cp_parser_late_parsing_default_args): Use DEFERRED_PARSE instead of
2318 DEFAULT_ARG. Use DEFPARSE_INSTANTIATIONS instead of
2319 DEFARG_INSTANTIATIONS.
2320 (cp_parser_cache_defarg): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2321 Use DEFPARSE_TOKENS instead of DEFARG_TOKENS. Use
2322 DEFPARSE_INSTANTIATIONS instead of DEFARG_INSTANTIATIONS.
2323 (defparse_location): Renamed from defarg_location.
2324 * pt.c (tsubst_default_argument): Use DEFERRED_PARSE instead of
2326 (tsubst_arg_types): Likewise.
2327 (dependent_type_p_r): Likewise.
2328 * tree.c (cp_tree_equal): Likewise.
2329 (cp_walk_subtrees): Likewise.
2330 * typeck.c (convert_arguments): Likewise.
2332 2019-06-22 Marek Polacek <polacek@redhat.com>
2334 PR c++/86476 - noexcept-specifier is a complete-class context.
2336 * cp-tree.def (DEFAULT_ARG): Update commentary.
2337 * cp-tree.h (UNPARSED_NOEXCEPT_SPEC_P): New macro.
2338 (tree_default_arg): Use tree_base instead of tree_common.
2339 (do_push_parm_decls, maybe_check_overriding_exception_spec): Declare.
2340 * decl.c (do_push_parm_decls): New function, broken out of...
2341 (store_parm_decls): ...here. Call it.
2342 * except.c (nothrow_spec_p): Accept DEFAULT_ARG in the assert.
2343 * parser.c (cp_parser_noexcept_specification_opt,
2344 cp_parser_late_noexcept_specifier, noexcept_override_late_checks):
2346 (unparsed_noexcepts): New macro.
2347 (push_unparsed_function_queues): Update initializer.
2348 (cp_parser_direct_declarator): Pass FRIEND_P to
2349 cp_parser_exception_specification_opt.
2350 (inject_parm_decls): New.
2351 (pop_injected_parms): New.
2352 (cp_parser_class_specifier_1): Implement delayed parsing of
2353 noexcept-specifiers.
2354 (cp_parser_save_noexcept): New.
2355 (cp_parser_late_noexcept_specifier): New.
2356 (noexcept_override_late_checks): New.
2357 (cp_parser_noexcept_specification_opt): Add FRIEND_P parameter. Call
2358 cp_parser_save_noexcept instead of the normal processing if needed.
2359 (cp_parser_exception_specification_opt): Add FRIEND_P parameter and
2360 pass it to cp_parser_noexcept_specification_opt.
2361 (cp_parser_save_member_function_body): Fix comment.
2362 (cp_parser_save_default_args): Maybe save the noexcept-specifier to
2364 (cp_parser_transaction): Update call to
2365 cp_parser_noexcept_specification_opt.
2366 (cp_parser_transaction_expression): Likewise.
2367 * parser.h (cp_unparsed_functions_entry): Add new field to carry
2368 a noexcept-specifier.
2369 * pt.c (dependent_type_p_r): Handle unparsed noexcept expression.
2370 * search.c (maybe_check_overriding_exception_spec): New function, broken
2372 (check_final_overrider): ...here. Call
2373 maybe_check_overriding_exception_spec.
2374 * tree.c (canonical_eh_spec): Handle UNPARSED_NOEXCEPT_SPEC_P.
2375 (cp_tree_equal): Handle DEFAULT_ARG.
2377 PR c++/90881 - bogus -Wunused-value in unevaluated context.
2378 * cvt.c (convert_to_void): Don't emit unused warnings in
2379 an unevaluated context.
2381 2019-06-22 Paolo Carlini <paolo.carlini@oracle.com>
2383 * decl.c (grokdeclarator): Use id_loc, typespec_loc, and
2384 locations[ds_storage_class] in a few additional places.
2386 2019-06-21 Paolo Carlini <paolo.carlini@oracle.com>
2390 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2394 * call.c (build_over_call): Devirtualize when the final overrider
2395 comes from the base.
2397 2019-06-21 Marek Polacek <polacek@redhat.com>
2399 PR c++/61490 - qualified-id in friend function definition.
2400 * decl.c (grokdeclarator): Diagnose qualified-id in friend function
2401 definition. Improve location for diagnostics of friend functions.
2403 PR c++/60223 - ICE with T{} in non-deduced context.
2404 * pt.c (unify): Allow COMPOUND_LITERAL_P in a non-deduced context.
2406 PR c++/64235 - missing syntax error with invalid alignas.
2407 * parser.c (cp_parser_std_attribute_spec): Commit to tentative parse
2408 if there's a missing close paren.
2410 PR c++/90490 - fix decltype issues in noexcept-specifier.
2411 * except.c (build_noexcept_spec): Call
2412 instantiate_non_dependent_expr_sfinae before
2413 build_converted_constant_expr instead of calling
2414 instantiate_non_dependent_expr after it. Add
2415 processing_template_decl_sentinel.
2417 2019-06-21 Jakub Jelinek <jakub@redhat.com>
2420 * semantics.c (finish_omp_clauses): Don't reject references to
2421 incomplete types if processing_template_decl.
2423 2019-06-19 Marek Polacek <polacek@redhat.com>
2425 PR c++/60364 - noreturn after first decl not diagnosed.
2426 * decl.c (duplicate_decls): Give an error when a function is
2427 declared [[noreturn]] after its first declaration.
2428 * parser.c (cp_parser_std_attribute): Don't treat C++11 noreturn
2429 attribute as equivalent to GNU's.
2430 * tree.c (std_attribute_table): Add noreturn.
2432 2019-06-19 Jakub Jelinek <jakub@redhat.com>
2434 * cp-gimplify.c (cp_genericize_r): Handle OMP_CLAUSE_{IN,EX}CLUSIVE
2435 like OMP_CLAUSE_SHARED.
2437 2019-06-18 Jason Merrill <jason@redhat.com>
2439 * constexpr.c (cxx_eval_store_expression): Delay target evaluation.
2441 2019-06-18 Jason Merrill <jason@redhat.com>
2443 * constexpr.c (eval_and_check_array_index): Split out from...
2444 (cxx_eval_array_reference): ...here.
2445 (cxx_eval_store_expression): Use it here, too.
2446 (diag_array_subscript): Take location. Strip location wrapper.
2448 2019-06-18 Jason Merrill <jason@redhat.com>
2450 * constexpr.c (cxx_eval_constant_expression): Handle conversion from
2451 and then to the same type.
2453 2019-06-18 Jason Merrill <jason@redhat.com>
2455 * constexpr.c (unshare_constructor): Add MEM_STAT_DECL.
2457 2019-06-17 Jakub Jelinek <jakub@redhat.com>
2459 * semantics.c (finish_omp_clauses): For OMP_CLAUSE_REDUCTION_INSCAN
2460 set need_copy_assignment.
2462 2019-06-17 Marek Polacek <polacek@redhat.com>
2464 PR c++/83820 - excessive attribute arguments not detected.
2465 * parser.c (cp_parser_std_attribute): Detect excessive arguments.
2467 2019-06-17 Nathan Sidwell <nathan@acm.org>
2470 * name-lookup.c (lookup_type_scope_1): Calll qualify_lookup before
2473 2019-06-14 Marek Polacek <polacek@redhat.com>
2475 PR c++/90884 - stray note with -Wctor-dtor-privacy.
2476 * class.c (maybe_warn_about_overly_private_class): Guard the call to
2479 2019-06-12 Jason Merrill <jason@redhat.com>
2481 PR c++/85552 - wrong instantiation of dtor for DMI.
2482 * typeck2.c (digest_nsdmi_init): Set tf_no_cleanup for direct-init.
2484 2019-06-13 Paolo Carlini <paolo.carlini@oracle.com>
2486 * decl.c (grokdeclarator): Use id_loc in five additional places
2487 in the last part of the function.
2489 2019-06-13 Paolo Carlini <paolo.carlini@oracle.com>
2491 * decl.c (grokdeclarator): Move further up the declaration of
2492 id_loc, use it immediately, update its value after the loop
2493 over declarator, use it again in the final part of function;
2494 improve locations of error messages about multiple data types
2495 and conflicting specifiers.
2497 2019-06-13 Richard Biener <rguenther@suse.de>
2500 * typeck2.c (split_nonconstant_init_1): Properly count
2501 num_split_elts, optimize single constructor elt removal.
2503 2019-06-12 Marek Polacek <polacek@redhat.com>
2505 PR c++/66999 - 'this' captured by reference.
2506 * parser.c (cp_parser_lambda_introducer): Reject `&this'. Use
2507 cp_lexer_nth_token_is instead of cp_lexer_peek_nth_token.
2509 PR c++/90825 - endless recursion when evaluating sizeof.
2510 PR c++/90832 - endless recursion when evaluating sizeof.
2511 * constexpr.c (cxx_eval_constant_expression): Don't recurse on the
2512 result of fold_sizeof_expr if is returns a SIZEOF_EXPR.
2513 * typeck.c (cxx_sizeof_expr): Only return a SIZEOF_EXPR if the operand
2514 is instantiation-dependent.
2516 PR c++/90736 - bogus error with alignof.
2517 * constexpr.c (adjust_temp_type): Use cv_unqualified type.
2519 2019-06-11 Matthew Beliveau <mbelivea@redhat.com>
2521 PR c++/90449 - add -Winaccessible-base option.
2522 * class.c (warn_about_ambiguous_bases): Changed name to:
2523 maybe_warn_about_inaccessible_bases.
2524 (maybe_warn_about_inaccessible_bases): Implemented new
2525 Winaccessible-base warning option for both direct and virtual
2527 (layout_class_type): Call to warn_about_ambiguous_bases changed to fit
2530 2019-06-11 Richard Biener <rguenther@suse.de>
2533 * typeck2.c (split_nonconstant_init_1): Avoid ordered remove
2534 from CONSTRUCTOR by marking to remove elements and doing all
2535 of them in a O(n) scan.
2537 2019-06-11 Jakub Jelinek <jakub@redhat.com>
2540 * init.c (constant_value_1): Handle VECTOR_CST DECL_INITIAL for
2541 !DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P decls like CONSTRUCTOR.
2543 2019-06-11 Martin Liska <mliska@suse.cz>
2546 * pt.c (init_template_processing): Disable hash table
2547 sanitization for decl_specializations and type_specializations.
2549 2019-06-10 Jason Merrill <jason@redhat.com>
2551 * constexpr.c (free_constructor): New.
2552 (cxx_eval_call_expression): Free parameter value CONSTRUCTORs.
2554 * constexpr.c (unshare_constructor): Only unshare if T is itself a
2556 (cxx_eval_call_expression): Don't call it on the result here.
2558 Reduce constexpr_call memory consumption.
2559 * constexpr.c (cxx_bind_parameters_in_call): Use TREE_VEC rather
2561 (constexpr_call_hasher::equal, cxx_bind_parameters_in_call)
2562 (cxx_eval_call_expression): Adjust.
2564 2019-06-10 Jakub Jelinek <jakub@redhat.com>
2566 * parser.c (cp_parser_omp_clause_reduction): Don't sorry_at on inscan
2568 (cp_parser_omp_scan_loop_body): New function.
2569 (cp_parser_omp_for_loop): Call cp_parser_omp_scan_loop_body if there
2570 are inscan reduction clauses.
2571 (cp_parser_pragma): Reject PRAGMA_OMP_SCAN.
2572 * semantics.c (finish_omp_clauses): Reject mixing inscan with
2573 non-inscan reductions on the same construct, or inscan reductions with
2574 ordered or schedule clauses, or inscan array reductions.
2575 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_{IN,EX}CLUSIVE.
2576 (tsubst_expr): Handle OMP_SCAN.
2578 2019-06-07 Jason Merrill <jason@redhat.com>
2580 * constexpr.c (cxx_eval_constant_expression): Call
2581 STRIP_ANY_LOCATION_WRAPPER early.
2582 [CONVERT_EXPR]: Don't build anything for conversion to void.
2583 [ADDR_EXPR]: ggc_free unused ADDR_EXPR.
2585 2019-06-05 Martin Sebor <msebor@redhat.com>
2588 * typeck.c (maybe_warn_about_returning_address_of_local): Only
2589 consider functions returning pointers as candidates for
2590 -Wreturn-local-addr.
2592 2019-06-05 Paolo Carlini <paolo.carlini@oracle.com>
2594 * decl.c (smallest_type_location): New.
2595 (check_special_function_return_type): Use it.
2596 (grokdeclarator): Lkewise.
2598 2019-06-05 Paolo Carlini <paolo.carlini@oracle.com>
2600 * decl.c (grokdeclarator): Use locations[ds_friend]
2603 2019-06-05 Martin Sebor <msebor@redhat.com>
2605 * call.c (build_conditional_expr_1): Adjust quoting and hyphenation.
2606 (convert_like_real): Same.
2607 (convert_arg_to_ellipsis): Same.
2608 * constexpr.c (diag_array_subscript): Same.
2609 * constraint.cc (diagnose_trait_expression): Same.
2610 * cvt.c (ocp_convert): Same.
2611 * decl.c (start_decl): Same.
2612 (check_for_uninitialized_const_var): Same.
2614 (check_special_function_return_type): Same.
2615 (finish_enum_value_list): Same.
2616 (start_preparsed_function): Same.
2617 * parser.c (cp_parser_decl_specifier_seq): Same.
2618 * typeck.c (cp_build_binary_op): Same.
2619 (build_static_cast_1): Same.
2621 2019-06-04 Nina Dinka Ranns <dinka.ranns@gmail.com>
2623 PR c++/63149 - Wrong auto deduction from braced-init-list.
2624 * pt.c (listify_autos): use non cv qualified auto_node in
2625 std::initializer_list<auto>.
2627 2019-06-04 Paolo Carlini <paolo.carlini@oracle.com>
2629 * decl.c (grokdeclarator): Use declarator->id_loc in two
2632 2019-06-04 Nathan Sidwell <nathan@acm.org>
2634 * name-lookup.c (lookup_type_scope_1): Reimplement, handle local
2635 and namespace scopes separately.
2637 2019-06-04 Harald van Dijk <harald@gigawatt.nl>
2639 PR c++/60531 - Wrong error about unresolved overloaded function
2640 * typeck.c (cp_build_binary_op): See if overload can be resolved.
2641 (cp_build_unary_op): Ditto.
2643 2019-06-04 Jason Merrill <jason@redhat.com>
2645 Reduce accumulated garbage in constexpr evaluation.
2646 * constexpr.c (cxx_eval_call_expression): ggc_free any bindings we
2648 (cxx_eval_increment_expression): ggc_free the MODIFY_EXPR after
2651 2019-06-04 Jakub Jelinek <jakub@redhat.com>
2653 * cp-tree.h (CP_OMP_CLAUSE_INFO): Allow for any clauses up to _condvar_
2654 instead of only up to linear.
2656 2019-06-03 Paolo Carlini <paolo.carlini@oracle.com>
2658 * parser.c (cp_parser_unqualified_id): Use build_min_nt_loc in
2661 2019-06-01 Ville Voutilainen <ville.voutilainen@gmail.com>
2664 * class.c (fixup_type_variants): Handle CLASSTYPE_FINAL.
2666 2019-05-31 Nathan Sidwell <nathan@acm.org>
2668 * cp-tree.h (IDENTIFIER_LAMBDA_P): New.
2670 (LAMBDA_TYPE_P, TYPE_UNNAMED_P): Likewise.
2671 (LAMBDANAME_PREFIX, LAMBDANAME_FORMAT): Delete.
2672 (make_lambda_name): Don't declare.
2673 * error.c (dump_aggr_type): Check for lambdas before other
2675 * lambda.c (begin_lambda_type): Use make_anon_name.
2676 * cp-lang.c (cxx_dwarf_name): Lambda names smell anonymous.
2677 * mangle.c (write_local_name): Likewise.
2678 * name-lookup.c (lambda_cnt, make_lambda_name): Delete.
2680 2019-05-30 Marek Polacek <polacek@redhat.com>
2682 * cp-tree.h (TYPE_HAS_NONTRIVIAL_DESTRUCTOR): Fix a typo.
2684 2019-05-31 Paolo Carlini <paolo.carlini@oracle.com>
2686 * decl.c (grokdeclarator): Use declarator->id_loc in five
2689 2019-05-29 Jakub Jelinek <jakub@redhat.com>
2692 * tree.c (lvalue_kind): Return clk_none for expressions with
2695 2019-05-29 Paolo Carlini <paolo.carlini@oracle.com>
2698 * parser.c (cp_parser_sizeof_operand): When the type-id production
2699 did not work out commit to the tentative parse.
2701 2019-05-29 Jakub Jelinek <jakub@redhat.com>
2703 P1091R3 - Extending structured bindings to be more like var decls
2704 P1381R1 - Reference capture of structured bindings
2705 * decl.c (cp_maybe_mangle_decomp): Handle TREE_STATIC decls even at
2707 (cp_finish_decomp): Copy over various decl properties from decl to
2708 v[i] in the tuple case.
2709 (grokdeclarator): Allow static, thread_local and __thread for C++2a
2710 and use pedwarn instead of error for older standard revisions.
2711 Make other structured binding diagnostic messages more i18n friendly.
2713 2019-05-28 Nathan Sidwell <nathan@acm.org>
2715 * decl.c (duplicate_decls): Assert a template newdecl has no
2718 2019-05-28 Marek Polacek <polacek@redhat.com>
2720 PR c++/90548 - ICE with generic lambda and empty pack.
2721 * pt.c (tsubst_copy_and_build): Handle pack expansion properly.
2723 2019-05-28 Nathan Sidwell <nathan@acm.org>
2725 * cp-tree.h (make_anon_name): Drop declaration.
2726 (TYPE_UNNAMED_P): Use IDENTIFIER_ANON_P.
2727 * cp-lang.c (cxx_dwarf_name): Likewise.
2728 * class.c (find_flexarrays): Likewise.
2729 * decl.c (name_unnamed_type, xref_tag_1): Likewise.
2730 * error.c (dump_aggr_type): Likewise.
2731 * pt.c (push_template_decl_real): Likewise.
2732 * name-lookup.c (consider_binding_level): Likewise.
2733 (anon_cnt, make_anon_name): Delete.
2735 2019-05-25 Marek Polacek <polacek@redhat.com>
2737 PR c++/90572 - wrong disambiguation in friend declaration.
2738 * parser.c (cp_parser_constructor_declarator_p): Don't allow missing
2739 typename for friend declarations.
2741 2019-05-23 Jonathan Wakely <jwakely@redhat.com>
2743 * cp-tree.h (CP_AGGREGATE_TYPE_P): Fix whitespace.
2745 * init.c (std_placement_new_fn_p): Remove outdated TODO comment that
2746 was resolved by r254694.
2748 2019-05-22 Jason Merrill <jason@redhat.com>
2750 PR c++/20408 - unnecessary code for empty struct.
2751 * call.c (build_call_a): Use simple_empty_class_p.
2753 PR c++/86485 - -Wmaybe-unused with empty class ?:
2754 * cp-gimplify.c (simple_empty_class_p): Also true for MODIFY_EXPR.
2756 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2758 * parser.c (cp_parser_template_declaration_after_parameters): Use
2759 DECL_SOURCE_LOCATION in literal operator template errors.
2761 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2765 * call.c (build_over_call): Devirtualize when the final overrider
2766 comes from the base.
2768 2019-05-21 Nathan Sidwell <nathan@acm.org>
2770 * name-lookup.c (do_nonmember_using_decl): Drop INSERT_P
2771 parameter. Document.
2772 (finish_nonmember_using_decl): Adjust do_nonmember_using_decl
2773 calls. Remove stray FIXME comment.
2775 * name-lookup.h (struct cp_binding_level): Drop usings field.
2776 (finish_namespace_using_decl, finish_local_using_decl): Replace with ...
2777 (finish_nonmember_using_decl): ... this.
2778 * name-lookup.c (push_using_decl_1, push_using_decl):
2779 (do_nonmember_using_decl): ... here. Add INSERT_P arg. Reimplement.
2780 (validate_nonmember_using_decl, finish_namespace_using_decl)
2781 (finish_local_using_decl): Replace with ...
2782 (finish_nonmember_using_decl): ... this. Drop DECL parm.
2783 * parser.c (cp_parser_using_declaration): Don't do lookup here.
2784 * pt.c (tsubst_expr): Do not do using decl lookup here.
2786 2019-05-21 Eric Botcazou <ebotcazou@adacore.com>
2788 * decl2.c (cpp_check) <IS_ASSIGNMENT_OPERATOR>: New case.
2790 2019-05-20 Marek Polacek <polacek@redhat.com>
2792 CWG 2094 - volatile scalars are trivially copyable.
2794 * tree.c (trivially_copyable_p): Don't check CP_TYPE_VOLATILE_P for
2797 2019-05-20 Marek Polacek <polacek@redhat.com>
2799 * pt.c (convert_template_argument): Add a diagnostic for the
2800 [temp.arg]/2 ambiguity case.
2802 * name-lookup.c (finish_using_directive): Don't issue inform() if the
2803 warning didn't trigger. Add quoting. Tweak the inform message.
2805 2019-05-20 Paolo Carlini <paolo.carlini@oracle.com>
2807 * cp-tree.h: Remove remnants of CONV_NONCONVERTING.
2809 2019-05-20 Nathan Sidwell <nathan@acm.org>
2811 * name-lookup.c (finish_namespace_using_directive)
2812 (finish_local_using_directive): Merge to ...
2813 (finish_using_directive): ... here. Handle both contexts.
2814 * name-lookup.h (finish_namespace_using_directive)
2815 (finish_local_using_directive): Replace with ...
2816 (finish_using_directive): ... this.
2817 * parser.c (cp_parser_using_directive): Adjust.
2818 * pt.c (tsubst_expr): Likewise.
2820 * cp-tree.h (struct lang_decl_ns): Remove usings field.
2821 (DECL_NAMESPACE_USING): Delete.
2822 * name-lookup.c (name_lookup::search_usings): Use namespace's
2824 (name_lookup::queue_namespae): Likewise.
2825 (finish_namespace_using_directive, push_namespace): Likewise.
2826 (has_using_namespace_std_directive): Just search the entire
2829 2019-05-20 Jonathan Wakely <jwakely@redhat.com>
2831 PR c++/90532 Ensure __is_constructible(T[]) is false
2832 * method.c (is_xible_helper): Return error_mark_node for construction
2833 of an array of unknown bound.
2835 2019-05-17 Thomas Schwinge <thomas@codesourcery.com>
2838 * parser.c (cp_finalize_oacc_routine): Rework checking if already
2839 marked with an OpenACC 'routine' directive.
2842 * parser.c (cp_parser_oacc_routine)
2843 (cp_parser_late_parsing_oacc_routine): Normalize order of clauses.
2844 (cp_finalize_oacc_routine): Call oacc_verify_routine_clauses.
2847 * parser.c (cp_finalize_oacc_routine): Refer to OpenACC 'routine'
2848 clauses from "omp declare target" attribute.
2850 2019-05-16 Martin Sebor <msebor@redhat.com>
2852 * call.c (print_z_candidate): Wrap diagnostic text in a gettext
2854 (print_z_candidates): Same.
2855 (build_conditional_expr_1): Quote keywords, operators, and types
2857 (build_op_delete_call): Same.
2858 (maybe_print_user_conv_context): Wrap diagnostic text in a gettext
2860 (convert_like_real): Same.
2861 (convert_arg_to_ellipsis): Quote keywords, operators, and types
2863 (build_over_call): Same.
2864 (joust): Break up an overlong line. Wrap diagnostic text in a gettext
2866 * constexpr.c (cxx_eval_check_shift_p): Spell out >= in English.
2867 (cxx_eval_constant_expression): Quote keywords, operators, and types
2869 (potential_constant_expression_1): Same.
2870 * cp-gimplify.c (cp_genericize_r): Same.
2871 * cvt.c (maybe_warn_nodiscard): Quote keywords, operators, and types
2873 (type_promotes_to): Same.
2874 * decl.c (check_previous_goto_1): Same.
2877 (cp_finish_decl): Avoid parenthesizing a sentence for consistency.
2878 (grok_op_properties): Quote keywords, operators, and types
2880 * decl2.c (grokfield): Same.
2881 (coerce_delete_type): Same.
2882 * except.c (is_admissible_throw_operand_or_catch_parameter): Same.
2883 * friend.c (do_friend): Quote C++ tokens.
2884 * init.c (build_new_1): Quote keywords, operators, and types
2886 (build_vec_delete_1): Same.
2887 (build_delete): Same.
2888 * lex.c (parse_strconst_pragma): Same.
2889 (handle_pragma_implementation): Same.
2890 (unqualified_fn_lookup_error): Same.
2891 * mangle.c (write_type): Same.
2892 * method.c (defaulted_late_check): Avoid two consecutive punctuators.
2893 * name-lookup.c (cp_binding_level_debug): Remove a trailing newline.
2894 (pop_everything): Same.
2895 * parser.c (cp_lexer_start_debugging): Quote a macro name.
2897 (cp_lexer_stop_debugging): Same.
2898 (cp_parser_userdef_numeric_literal): Quote a C++ header name
2900 (cp_parser_nested_name_specifier_opt): Quote keywords, operators,
2901 and types in diagnostics.
2902 (cp_parser_question_colon_clause): Same.
2903 (cp_parser_asm_definition): Same.
2904 (cp_parser_init_declarator): Same.
2905 (cp_parser_template_declaration_after_parameters): Avoid capitalizing
2906 a sentence in a diagnostic.
2907 (cp_parser_omp_declare_reduction): Quote keywords, operators, and types
2909 (cp_parser_transaction): Same.
2910 * pt.c (maybe_process_partial_specialization): Replace second call
2911 to permerror with inform for consistency with other uses.
2912 (expand_integer_pack): Quote keywords, operators, and types
2914 * rtti.c (get_typeid): Quote keywords, operators, and types
2916 (build_dynamic_cast_1): Same.
2917 * semantics.c (finish_asm_stmt): Same.
2918 (finish_label_decl): Same.
2919 (finish_bases): Same.
2920 (finish_offsetof): Same.
2921 (cp_check_omp_declare_reduction): Same.
2922 (finish_decltype_type): Same.
2923 * tree.c (handle_init_priority_attribute): Same. Add detail
2925 (maybe_warn_zero_as_null_pointer_constant): Same.
2926 * typeck.c (cp_build_binary_op): Quote keywords, operators, and types
2928 (cp_build_unary_op): Same.
2929 (check_for_casting_away_constness): Same.
2930 (build_static_cast): Same.
2931 (build_const_cast_1): Same.
2932 (maybe_warn_about_returning_address_of_local): Same.
2933 (check_return_expr): Same.
2934 * typeck2.c (abstract_virtuals_error_sfinae): Same.
2935 (digest_init_r): Replace a tab with spaces in a diagnostic.
2936 (build_functional_cast): Quote keywords, operators, and types
2939 2019-05-15 Jakub Jelinek <jakub@redhat.com>
2942 * cp-gimplify.c (genericize_cp_loop): Emit a DEBUG_BEGIN_STMT
2943 before the condition (or if missing or constant non-zero at the end
2944 of the loop. Emit a DEBUG_BEGIN_STMT before the increment expression
2945 if any. Don't call protected_set_expr_location on incr if it already
2948 2019-05-15 Marek Polacek <polacek@redhat.com>
2950 CWG 2096 - constraints on literal unions.
2951 * class.c (check_field_decls): Initialize booleans directly. A union
2952 is literal if at least one of its non-static data members is of
2953 non-volatile literal type.
2955 2019-05-15 Paolo Carlini <paolo.carlini@oracle.com>
2957 * cp-tree.h (REFERENCE_VLA_OK): Remove.
2958 * lambda.c (build_capture_proxy): Remove use of the above.
2960 2019-05-15 Paolo Carlini <paolo.carlini@oracle.com>
2962 * call.c (perform_overload_resolution, build_new_method_call_1):
2963 Use OVL_P; remove redundant TEMPLATE_DECL checks.
2964 * decl.c (grokfndecl): Likewise.
2965 * mangle.c (write_expression): Likewise.
2966 * parser.c (cp_parser_template_id): Likewise.
2967 * pt.c (resolve_overloaded_unification, type_dependent_expression_p):
2969 * search.c (build_baselink): Likewise.
2970 * tree.c (is_overloaded_fn, dependent_name, maybe_get_fns): Likewise.
2972 2019-05-14 Paolo Carlini <paolo.carlini@oracle.com>
2974 PR preprocessor/90382
2975 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
2978 2019-05-13 Jason Merrill <jason@redhat.com>
2980 Use releasing_vec more broadly.
2981 * cp-tree.h (struct releasing_vec): Replace get_ref method with
2983 (vec_safe_push, vec_safe_reserve, vec_safe_length, vec_safe_splice):
2984 Forwarding functions for releasing_vec.
2985 (release_tree_vector): Declare but don't define.
2986 * call.c (build_op_delete_call, build_temp, call_copy_ctor)
2987 (perform_direct_initialization_if_possible): Use releasing_vec.
2988 * constexpr.c (cxx_eval_vec_init_1, cxx_eval_store_expression):
2990 * cp-gimplify.c (cp_fold): Likewise.
2991 * cvt.c (force_rvalue, ocp_convert): Likewise.
2992 * decl.c (get_tuple_decomp_init): Likewise.
2993 * except.c (build_throw): Likewise.
2994 * init.c (perform_member_init, expand_default_init): Likewise.
2995 * method.c (do_build_copy_assign, locate_fn_flags): Likewise.
2996 * parser.c (cp_parser_userdef_char_literal)
2997 (cp_parser_userdef_numeric_literal)
2998 (cp_parser_userdef_string_literal)
2999 (cp_parser_perform_range_for_lookup)
3000 (cp_parser_range_for_member_function, cp_parser_omp_for_loop)
3001 (cp_parser_omp_for_loop_init): Likewise.
3002 * pt.c (tsubst_copy_and_build, do_class_deduction): Likewise.
3003 * semantics.c (calculate_direct_bases, calculate_bases)
3004 (finish_omp_barrier, finish_omp_flush, finish_omp_taskwait)
3005 (finish_omp_taskyield, finish_omp_cancel)
3006 (finish_omp_cancellation_point): Likewise.
3007 * tree.c (build_vec_init_elt, strip_typedefs, strip_typedefs_expr)
3008 (build_min_non_dep_op_overload): Likewise.
3009 * typeck.c (build_function_call_vec, cp_build_function_call_nary)
3010 (cp_build_modify_expr): Likewise.
3011 * typeck2.c (build_functional_cast): Likewise.
3013 2019-05-11 Paolo Carlini <paolo.carlini@oracle.com>
3015 * typeck.c (cp_build_function_call_vec): When mark_used fails
3016 unconditionally return error_mark_node.
3018 2019-05-10 Paolo Carlini <paolo.carlini@oracle.com>
3020 * decl.c (grokvardecl): Use an accurate location in error message
3021 about main as a global variable.
3023 2019-05-10 Paolo Carlini <paolo.carlini@oracle.com>
3025 * call.c (build_call_a): Use FUNC_OR_METHOD_TYPE_P.
3026 * cp-gimplify.c (cp_fold): Likewise.
3027 * cp-objcp-common.c (cp_type_dwarf_attribute): Likewise.
3028 * cp-tree.h (TYPE_OBJ_P, TYPE_PTROBV_P): Likewise.
3029 * cvt.c (perform_qualification_conversions): Likewise.
3030 * decl.c (grokdeclarator): Likewise.
3031 * decl2.c (build_memfn_type): Likewise.
3032 * mangle.c (canonicalize_for_substitution, write_type): Likewise.
3033 * parser.c (cp_parser_omp_declare_reduction): Likewise.
3034 * pt.c (check_explicit_specialization, uses_deducible_template_parms,
3035 check_cv_quals_for_unify, dependent_type_p_r): Likewise.
3036 * rtti.c (ptr_initializer): Likewise.
3037 * semantics.c (finish_asm_stmt, finish_offsetof,
3038 cp_check_omp_declare_reduction): Likewise.
3039 * tree.c (cp_build_qualified_type_real,
3040 cp_build_type_attribute_variant, cxx_type_hash_eq,
3041 cxx_copy_lang_qualifiers, cp_free_lang_data): Likewise.
3042 * typeck.c (structural_comptypes, convert_arguments,
3043 cp_build_addr_expr_1, unary_complex_lvalue, cp_build_c_cast,
3044 cp_build_modify_expr, comp_ptr_ttypes_real, type_memfn_rqual):
3047 2019-05-10 Marek Polacek <polacek@redhat.com>
3049 PR c++/78010 - bogus -Wsuggest-override warning on final function.
3050 * class.c (check_for_override): Don't warn for final functions.
3052 2019-05-10 Jakub Jelinek <jakub@redhat.com>
3055 * config-lang.in (gtfiles): Remove c-family/c-lex.c, add
3056 c-family/c-cppbuiltin.c.
3058 2019-05-09 Paolo Carlini <paolo.carlini@oracle.com>
3062 2018-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3064 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3067 2019-05-08 Nathan Sidwell <nathan@acm.org>
3069 Kill DECL_SAVED_FUNCTION_DATA .
3070 * cp-tree.h (language_function): Remove x_auto_return_pattern.
3071 (current_function_auto_return_pattern): Delete.
3072 (lang_decl_fn): Replace saved_language_function with
3073 saved_auto_return type.
3074 (DECL_SAVED_FUNCTION_DATA): Delete.
3075 (DECL_SAVED_AUTO_RETURN_TYPE): New.
3076 (FNDECL_USED_AUTO): Correct documentation.
3077 * decl.c (duplicate_decls): Adjust AUTO return handling.
3078 (start_preparsed_function): Replace
3079 current_function_auto_return_pattern with
3080 DECL_SAVED_AUTO_RETURN_TYPE. Remove DECL_SAVED_FUNCTION_DATA
3082 (finish_function): Likewise.
3083 (save_function_data): Delete.
3084 (fndecl_declared_return_type): Reimplement.
3085 * mangle.c (write_unqualified_name): Use DECL_SAVED_AUTO_RETURN_TYPE.
3086 * method.c (make_thunk, make_alias_for): Likewise.
3087 * parser.c (cp_parser_jump_statement): Likewise.
3088 * pt.c (do_auto_deduction): Likewise.
3089 * typeck.c (check_return_expr): Likewise.
3091 2019-05-06 Jason Merrill <jason@redhat.com>
3093 PR c++/90171 - reorganize usual_deallocation_fn_p
3094 * call.c (struct dealloc_info): New.
3095 (usual_deallocation_fn_p): Take a dealloc_info*.
3096 (aligned_deallocation_fn_p, sized_deallocation_fn_p): Remove.
3097 (build_op_delete_call): Adjust.
3099 2019-05-07 Jason Merrill <jason@redhat.com>
3101 PR c++/86485 - -Wmaybe-unused with empty class ?:
3102 * typeck.c (build_static_cast_1): Use cp_build_addr_expr.
3104 * pt.c (type_dependent_expression_p): A non-type template parm with
3105 a placeholder type is type-dependent.
3107 2019-05-06 Marek Polacek <polacek@redhat.com>
3109 PR c++/90265 - ICE with generic lambda.
3110 * pt.c (tsubst_copy_and_build): Use a dedicated variable for the last
3111 element in the vector.
3113 2019-05-03 Martin Liska <mliska@suse.cz>
3115 * call.c (build_aggr_conv): Use is_empty instead of
3116 elements () == 0 (and similar usages).
3117 * parser.c (cp_parser_lambda_introducer): Likewise.
3119 2019-05-02 Nathan Sidwell <nathan@acm.org>
3121 * semantics.c (finish_id_expression_1): Remove unreachable code.
3123 2019-05-01 Nathan Sidwell <nathan@acm.org>
3125 * name-lookup.h (get_class_binding_direct): Change final arg to
3127 (get_class_binding): Likewise.
3128 * name-lookup.c (get_class_binding_direct): Replace TYPE_OR_FNS
3129 arg with WANT_TYPE bool. Simplify.
3130 (get_class_binding): Adjust final arg.
3131 * decl.c (reshape_init_class): Adjust get_class_binding calls.
3133 2019-04-30 Nathan Sidwell <nathan@acm.org>
3135 * cp-objcp-common.c (cp_common_init_ts): Use MARK_TS_EXP for _EXPR
3136 nodes. Call c_common_init_ts.
3138 2019-04-29 Nathan Sidwell <nathan@acm.org>
3140 * decl.c (duplicate_decls): Add whitespace, move comments into
3142 * method.c (explain_implicit_non_constexpr): Refactor.
3143 * pt.c (check_explicit_specialization): Fix indentation.
3144 * semantics.c (process_outer_var_ref): Reformat.
3145 (finish_id_expression_1): Use STRIP_TEMPLATE.
3147 2019-04-26 Jonathan Wakely <jwakely@redhat.com>
3149 PR c++/90243 - orphaned note in uninstantiated constexpr function
3150 * decl.c (check_for_uninitialized_const_var): Suppress notes if no
3153 2019-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3156 * decl.c (grokdeclarator): Set type to error_mark_node
3157 upon error about template placeholder type non followed
3158 by a simple declarator-id.
3160 2019-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3162 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3165 2019-04-24 Jason Merrill <jason@redhat.com>
3167 PR c++/90227 - error with template parameter packs.
3168 * pt.c (coerce_template_parms): Do add empty pack when
3171 2019-04-24 Richard Biener <rguenther@suse.de>
3173 * call.c (null_ptr_cst_p): Order checks according to expensiveness.
3174 (conversion_null_warnings): Likewise.
3175 * typeck.c (same_type_ignoring_top_level_qualifiers_p): Return
3176 early if type1 == type2.
3178 2019-04-22 Jason Merrill <jason@redhat.com>
3180 PR c++/87366 - wrong error with alias template.
3181 * typeck.c (structural_comptypes): When comparing_specializations,
3182 aliases are unequal.
3183 (comptypes): When comparing_specializations, do structural
3186 2019-04-19 Jason Merrill <jason@redhat.com>
3188 PR c++/90190 - CTAD with list-constructor.
3189 * pt.c (do_class_deduction): Don't try the single element deduction
3190 if the single element is also a braced list.
3192 PR c++/90171 - ICE with destroying delete with size_t parm.
3193 * call.c (sized_deallocation_fn_p): New. Use it instead of
3194 second_parm_is_size_t in most cases.
3195 (second_parm_is_size_t): Don't check for aligned.
3197 2019-04-19 Paolo Carlini <paolo.carlini@oracle.com>
3200 * pt.c (fn_type_unification): When handling null explicit
3201 arguments do not special case non-parameter packs.
3203 2019-04-19 Jakub Jelinek <jakub@redhat.com>
3206 * pt.c (process_template_parm): Set decl to pushdecl result. If
3207 !is_non_type, also set parm to that.
3210 * decl.c (struct cp_switch): Remove outside_range_p member.
3211 (push_switch): Don't clear it.
3212 (pop_switch): Adjust c_do_switch_warnings caller.
3213 (finish_case_label): Adjust c_add_case_label caller.
3216 * decl.c (duplicate_decls): If remove is main variant and
3217 DECL_ORIGINAL_TYPE is some other type, remove a DECL_ORIGINAL_TYPE
3218 variant that has newdecl as TYPE_NAME if any.
3220 2019-04-18 Jason Merrill <jason@redhat.com>
3222 PR c++/87554 - ICE with extern template and reference member.
3223 * decl.c (cp_finish_decl): Don't set DECL_INITIAL of external vars.
3225 2019-04-17 Jason Merrill <jason@redhat.com>
3227 PR c++/90047 - ICE with enable_if alias template.
3228 * pt.c (tsubst_decl) [TYPE_DECL]: Don't put an erroneous decl in the
3229 hash table when we're in SFINAE context.
3231 2019-04-17 Marek Polacek <polacek@redhat.com>
3233 PR c++/90124 - bogus error with incomplete type in decltype.
3234 * typeck.c (build_class_member_access_expr): Check
3235 cp_unevaluated_operand.
3237 2019-04-12 Jakub Jelinek <jakub@redhat.com>
3240 * decl.c (duplicate_decls): When newdecl's type is its main variant,
3241 don't try to remove it from the variant list, but instead assert
3244 2019-04-12 Martin Sebor <msebor@redhat.com>
3248 * parser.c (cp_parser_has_attribute_expression): Handle assignment
3251 2019-04-12 Jason Merrill <jason@redhat.com>
3253 * call.c (null_member_pointer_value_p): Handle an empty CONSTRUCTOR
3256 2019-04-12 Marek Polacek <polacek@redhat.com>
3258 * except.c (build_noexcept_spec): Use build_converted_constant_bool_expr
3259 instead of perform_implicit_conversion_flags.
3261 PR c++/87603 - constexpr functions are no longer noexcept.
3262 * constexpr.c (is_sub_constant_expr): Remove unused function.
3263 * cp-tree.h (is_sub_constant_expr): Remove declaration.
3264 * except.c (check_noexcept_r): Don't consider a call to a constexpr
3267 2019-04-11 Jakub Jelinek <jakub@redhat.com>
3269 PR translation/90035
3270 * parser.h (struct cp_parser): Add
3271 type_definition_forbidden_message_arg member.
3272 * parser.c (cp_debug_parser): Print it.
3273 (cp_parser_check_type_definition): Pass
3274 parser->type_definition_forbidden_message_arg as second argument to
3276 (cp_parser_has_attribute_expression, cp_parser_sizeof_operand): Set
3277 parser->type_definition_forbidden_message_arg and use G_() with
3278 %qs for parser->type_definition_forbidden_message instead of
3279 building untranslatable message using concat.
3281 2019-04-09 Jakub Jelinek <jakub@redhat.com>
3283 PR translation/90011
3284 * typeck2.c (check_narrowing): Remove trailing space from diagnostics.
3286 2019-04-08 Marek Polacek <polacek@redhat.com>
3288 * typeck2.c (digest_init_r): Don't condition the object slicing warning
3291 2019-04-08 Paolo Carlini <paolo.carlini@oracle.com>
3294 * semantics.c (trait_expr_value): Don't use TYPE_NOTHROW_P
3295 when maybe_instantiate_noexcept fails.
3296 (classtype_has_nothrow_assign_or_copy_p): Likewise.
3297 * method.c (implicitly_declare_fn): Avoid passing error_mark_node
3298 to build_exception_variant.
3300 2019-04-05 Marek Polacek <polacek@redhat.com>
3302 PR c++/87145 - bogus error converting class type in template arg list.
3303 * pt.c (convert_nontype_argument): Don't call
3304 build_converted_constant_expr if it could involve calling a conversion
3305 function with a instantiation-dependent constructor as its argument.
3307 2019-04-05 Martin Sebor <msebor@redhat.com>
3310 * decl.c (reshape_init_array_1): Avoid treating empty strings
3311 as zeros in array initializers.
3312 Use trivial_type_p () instead of TYPE_HAS_TRIVIAL_DFLT().
3314 2019-04-04 Jason Merrill <jason@redhat.com>
3316 PR c++/89948 - ICE with break in statement-expr.
3317 * constexpr.c (cxx_eval_statement_list): Jumping out of a
3318 statement-expr is non-constant.
3320 2019-04-04 Jason Merrill <jason@redhat.com>
3322 PR c++/89966 - error with non-type auto tparm.
3323 * pt.c (do_auto_deduction): Clear tf_partial.
3325 2019-04-04 Jason Merrill <jason@redhat.com>
3327 PR c++/86986 - ICE with TTP with parameter pack.
3328 * pt.c (coerce_template_parameter_pack): Only look at the type of a
3329 non-type parameter pack.
3330 (fixed_parameter_pack_p_1): Don't recurse into the type of a
3331 non-type parameter pack.
3332 (coerce_template_template_parms): Call add_outermost_template_args.
3334 2019-04-04 Martin Sebor <msebor@redhat.com>
3340 * decl.c (reshape_init_array_1): Strip trailing zero-initializers
3341 from arrays of trivial type and known size.
3342 * mangle.c (write_expression): Convert braced initializer lists
3344 (write_expression): Trim trailing zero-initializers from arrays
3346 (write_template_arg_literal): Mangle strings the same as braced
3349 2019-04-03 Jason Merrill <jason@redhat.com>
3351 PR c++/81866 - ICE with member template and default targ.
3352 * pt.c (tsubst_template_decl): Handle getting a type from
3353 retrieve_specialization.
3355 PR c++/86586 - -fcompare-debug=-Wsign-compare.
3356 * typeck.c (cp_build_binary_op): Don't fold for -Wsign-compare.
3358 PR c++/89331 - ICE with offsetof in incomplete class.
3359 * semantics.c (finish_offsetof): Handle error_mark_node.
3360 * typeck.c (build_class_member_access_expr): Call
3361 complete_type_or_maybe_complain before converting to base.
3363 PR c++/89917 - ICE with lambda in variadic mem-init.
3364 * pt.c (make_pack_expansion): Change type_pack_expansion_p to false.
3366 2019-04-01 Jason Merrill <jason@redhat.com>
3368 PR c++/86946 - ICE with function call in template argument.
3370 * pt.c (iterative_hash_template_arg) [CALL_EXPR]: Use
3373 2019-04-01 Paolo Carlini <paolo.carlini@oracle.com>
3376 * pt.c (tsubst_copy): Deal with lookup_name not returing a variable.
3378 2019-03-31 Marek Polacek <polacek@redhat.com>
3380 PR c++/89852 - ICE with C++11 functional cast with { }.
3381 * constexpr.c (fold_non_dependent_expr_template): New static function
3383 (fold_non_dependent_expr): ...here.
3384 (fold_non_dependent_init): New function.
3385 * cp-tree.h (fold_non_dependent_init): Declare.
3386 * typeck2.c (massage_init_elt): Call fold_non_dependent_init instead
3387 of fold_non_dependent_expr. Don't call maybe_constant_init.
3389 2019-03-30 Jason Merrill <jason@redhat.com>
3391 PR c++/89744 - ICE with specialization of member class template.
3392 * pt.c (lookup_template_class_1): If the partial instantiation is
3393 explicitly specialized, adjust.
3394 (maybe_process_partial_specialization): Also adjust
3397 2019-03-29 Jakub Jelinek <jakub@redhat.com>
3400 * typeck.c: Include gimplify.h.
3401 (cp_build_modify_expr) <case COND_EXPR>: Unshare rhs before using it
3402 for second time. Formatting fixes.
3404 2019-03-29 Marek Polacek <polacek@redhat.com>
3406 PR c++/89876 - ICE with deprecated conversion.
3407 * call.c (convert_like_real): Only give warnings with tf_warning.
3409 2019-03-28 Marek Polacek <polacek@redhat.com>
3411 PR c++/89612 - ICE with member friend template with noexcept.
3412 * pt.c (maybe_instantiate_noexcept): For function templates, use their
3413 template result (function decl). Don't set up local specializations.
3414 Temporarily turn on processing_template_decl. Update the template type
3417 PR c++/89836 - bool constant expression and explicit conversions.
3418 * call.c (build_converted_constant_expr_internal): New function,
3420 (build_converted_constant_expr): ...this. New.
3421 (build_converted_constant_bool_expr): New.
3422 * cp-tree.h (build_converted_constant_bool_expr): Declare.
3423 * decl.c (build_explicit_specifier): Call
3424 build_converted_constant_bool_expr.
3426 2019-03-28 Jakub Jelinek <jakub@redhat.com>
3429 * constexpr.c (struct check_for_return_continue_data): New type.
3430 (check_for_return_continue): New function.
3431 (potential_constant_expression_1) <case SWITCH_STMT>: Walk
3432 SWITCH_STMT_BODY to find RETURN_EXPRs or CONTINUE_STMTs not nested
3433 in loop bodies and set *jump_target to that if found.
3435 2019-03-27 Jason Merrill <jason@redhat.com>
3437 PR c++/89831 - error with qualified-id in const member function.
3438 * semantics.c (finish_non_static_data_member): Use object cv-quals
3439 in scoped case, too.
3441 PR c++/89421 - ICE with lambda in template parameter list.
3442 * parser.c (cp_parser_lambda_expression): Also reject a lambda in a
3443 template parameter list before C++20.
3444 * pt.c (type_dependent_expression_p): True for LAMBDA_EXPR.
3445 * semantics.c (begin_class_definition): Restore error about defining
3446 non-lambda class in template parm list.
3448 2019-03-26 Jason Merrill <jason@redhat.com>
3450 PR c++/86932 - missed SFINAE with empty pack.
3451 * pt.c (coerce_template_parms): Don't add an empty pack if
3453 (fn_type_unification): Pass tf_partial to coerce_template_parms.
3455 PR c++/86429 - constexpr variable in lambda.
3458 * constexpr.c (cxx_eval_constant_expression): In a lambda function,
3459 try evaluating the captured variable directly.
3461 2019-03-26 Jakub Jelinek <jakub@redhat.com>
3464 * semantics.c (finish_omp_atomic): Add warning_sentinel for
3465 -Wunused-value around finish_expr_stmt call.
3467 2019-03-25 Paolo Carlini <paolo.carlini@oracle.com>
3471 * parser.c (cp_parser_binary_expression): Don't call cp_fully_fold
3472 to undo the disabling of warnings.
3474 2019-03-25 Jason Merrill <jason@redhat.com>
3476 PR c++/87748 - substitution failure error with decltype.
3477 * pt.c (most_specialized_partial_spec): Clear
3478 processing_template_decl.
3480 2019-03-25 Marek Polacek <polacek@redhat.com>
3482 PR c++/89214 - ICE when initializing aggregates with bases.
3483 * typeck2.c (digest_init_r): Warn about object slicing instead of
3486 PR c++/89705 - ICE with reference binding with conversion function.
3487 * call.c (reference_binding): If the result of the conversion function
3488 is a prvalue of non-class type, use the cv-unqualified type.
3490 2019-03-25 Nathan Sidwell <nathan@acm.org>
3492 * lambda.c (maybe_add_lambda_conv_op): Don't add to comdat group.
3494 2019-03-22 Jakub Jelinek <jakub@redhat.com>
3497 * cp-tree.h (get_tls_wrapper_fn): Remove declaration.
3498 (maybe_get_tls_wrapper_call): Declare.
3499 * decl2.c (get_tls_wrapper_fn): Make static.
3500 (maybe_get_tls_wrapper_call): New function.
3501 * typeck.c (build_class_member_access_expr): Handle accesses to TLS
3503 * semantics.c (finish_qualified_id_expr): Likewise.
3504 (finish_id_expression_1): Use maybe_get_tls_wrapper_call.
3505 * pt.c (tsubst_copy_and_build): Likewise.
3508 * constexpr.c (struct constexpr_ctx): Add constexpr_ops_count member.
3509 (cxx_eval_constant_expression): When not skipping, not constant class
3510 or location wrapper, increment *ctx->constexpr_ops_count and if it is
3511 above constexpr_loop_nest_limit, diagnose failure.
3512 (cxx_eval_outermost_constant_expr): Add constexpr_ops_count and
3513 initialize ctx.constexpr_ops_count to its address.
3514 (is_sub_constant_expr): Likewise.
3516 2019-03-21 Jakub Jelinek <jakub@redhat.com>
3519 * call.c (filed_in_pset): Change pset from hash_set<tree> * to
3520 hash_set<tree, true> &, adjust uses accordingly.
3521 (build_aggr_conv): Change pset from hash_set<tree> *
3522 to hash_set<tree, true>. Replace goto fail; with return NULL;,
3526 * parser.c (cp_parser_lambda_introducer): Add ids and first_capture_id
3527 variables, check for duplicates in this function.
3528 * lambda.c (add_capture): Don't check for duplicates nor use
3530 (register_capture_members): Don't clear IDENTIFIER_MARKED here.
3532 2019-03-21 Paolo Carlini <paolo.carlini@oracle.com>
3535 * method.c (after_nsdmi_defaulted_late_checks): Avoid passing
3536 error_mark_node to comp_except_specs.
3538 2019-03-20 Jason Merrill <jason@redhat.com>
3540 PR c++/87480 - decltype of member access in default template arg
3541 * pt.c (type_unification_real): Accept a dependent result in
3544 2019-03-19 Martin Sebor <msebor@redhat.com>
3546 PR tree-optimization/89688
3547 * typeck2.c (store_init_value): Call braced_lists_to_string for more
3548 kinds of initializers.
3550 2019-03-18 Jason Merrill <jason@redhat.com>
3552 PR c++/89630 - ICE with dependent using-decl as template arg.
3553 * tree.c (cp_tree_equal): Always return false for USING_DECL.
3555 PR c++/89761 - ICE with sizeof... in pack expansion.
3556 * pt.c (argument_pack_element_is_expansion_p): Handle
3557 ARGUMENT_PACK_SELECT.
3559 PR c++/89640 - GNU attributes on lambda.
3560 * parser.c (cp_parser_lambda_declarator_opt): Allow GNU attributes.
3562 PR c++/89682 - wrong access error in default argument.
3563 * pt.c (tsubst_default_argument): Don't defer access checks.
3565 2019-03-18 Paolo Carlini <paolo.carlini@oracle.com>
3568 * semantics.c (finish_non_static_data_member): Check return value
3569 of context_for_name_lookup and immediately return error_mark_node
3572 2019-03-17 Jason Merrill <jason@redhat.com>
3574 PR c++/89571 - ICE with ill-formed noexcept on constructor.
3575 * pt.c (maybe_instantiate_noexcept): Only return false if defaulted.
3576 (regenerate_decl_from_template): Use it for noexcept-specs.
3578 2019-03-14 Jason Merrill <jason@redhat.com>
3580 * parser.c (cp_parser_decl_specifier_seq): Support C++20
3581 concept-definition syntax without 'bool'.
3583 2019-03-14 Jakub Jelinek <jakub@redhat.com>
3586 * semantics.c (finish_qualified_id_expr): Reject variable templates.
3589 * constexpr.c (struct constexpr_ctx): Change save_exprs type from
3590 hash_set<tree> to vec<tree>.
3591 (cxx_eval_call_expression): Adjust for save_exprs being a vec instead
3593 (cxx_eval_loop_expr): Likewise. Truncate the vector after each
3594 removal of SAVE_EXPRs from values.
3595 (cxx_eval_constant_expression) <case SAVE_EXPR>: Call safe_push
3596 method on save_exprs instead of add.
3598 2019-03-13 Jason Merrill <jason@redhat.com>
3600 PR c++/86521 - C++17 copy elision in initialization by constructor.
3601 * call.c (joust_maybe_elide_copy): New.
3604 2019-03-13 Marek Polacek <polacek@redhat.com>
3606 PR c++/88979 - further P0634 fix for constructors.
3607 * parser.c (cp_parser_decl_specifier_seq): Pass flags to
3608 cp_parser_constructor_declarator_p.
3609 (cp_parser_direct_declarator): Allow missing typename for constructor
3611 (cp_parser_constructor_declarator_p): Add FLAGS parameter. Pass it to
3612 cp_parser_type_specifier.
3614 PR c++/89686 - mixing init-capture and simple-capture in lambda.
3615 * parser.c (cp_parser_lambda_introducer): Give error when combining
3616 init-capture and simple-capture.
3618 PR c++/89660 - bogus error with -Wredundant-move.
3619 * typeck.c (maybe_warn_pessimizing_move): Only accept (T &) &arg
3620 as the std::move's argument. Don't call convert_for_initialization
3621 when warn_redundant_move isn't on.
3623 2019-03-11 Jason Merrill <jason@redhat.com>
3625 PR c++/86521 - wrong overload resolution with ref-qualifiers.
3626 * call.c (build_user_type_conversion_1): Don't use a conversion to a
3627 reference of the wrong rvalueness for direct binding.
3629 2019-03-11 Martin Liska <mliska@suse.cz>
3631 * cvt.c (build_expr_type_conversion): Wrap apostrophes
3632 in gcc internal format with %'.
3633 * decl.c (check_no_redeclaration_friend_default_args): Likewise.
3634 (grokfndecl): Likewise.
3635 * name-lookup.c (do_pushtag): Likewise.
3636 * pt.c (unify_parameter_deduction_failure): Likewise.
3637 (unify_template_deduction_failure): Likewise.
3639 2019-03-11 Martin Liska <mliska@suse.cz>
3641 * call.c (convert_arg_to_ellipsis): Wrap an option name
3642 in a string format message and fix GNU coding style.
3643 (build_over_call): Likewise.
3644 * class.c (check_field_decl): Likewise.
3645 (layout_nonempty_base_or_field): Likewise.
3646 * constexpr.c (cxx_eval_loop_expr): Likewise.
3647 * cvt.c (type_promotes_to): Likewise.
3648 * decl.c (cxx_init_decl_processing): Likewise.
3649 (mark_inline_variable): Likewise.
3650 (grokdeclarator): Likewise.
3651 * decl2.c (record_mangling): Likewise.
3652 * error.c (maybe_warn_cpp0x): Likewise.
3653 * except.c (doing_eh): Likewise.
3654 * mangle.c (maybe_check_abi_tags): Likewise.
3655 * parser.c (cp_parser_diagnose_invalid_type_name): Likewise.
3656 (cp_parser_userdef_numeric_literal): Likewise.
3657 (cp_parser_primary_expression): Likewise.
3658 (cp_parser_unqualified_id): Likewise.
3659 (cp_parser_pseudo_destructor_name): Likewise.
3660 (cp_parser_builtin_offsetof): Likewise.
3661 (cp_parser_lambda_expression): Likewise.
3662 (cp_parser_lambda_introducer): Likewise.
3663 (cp_parser_lambda_declarator_opt): Likewise.
3664 (cp_parser_selection_statement): Likewise.
3665 (cp_parser_init_statement): Likewise.
3666 (cp_parser_decomposition_declaration): Likewise.
3667 (cp_parser_function_specifier_opt): Likewise.
3668 (cp_parser_static_assert): Likewise.
3669 (cp_parser_simple_type_specifier): Likewise.
3670 (cp_parser_namespace_definition): Likewise.
3671 (cp_parser_using_declaration): Likewise.
3672 (cp_parser_ctor_initializer_opt_and_function_body): Likewise.
3673 (cp_parser_initializer_list): Likewise.
3674 (cp_parser_type_parameter_key): Likewise.
3675 (cp_parser_member_declaration): Likewise.
3676 (cp_parser_try_block): Likewise.
3677 (cp_parser_std_attribute_spec): Likewise.
3678 (cp_parser_requires_clause_opt): Likewise.
3679 * pt.c (check_template_variable): Likewise.
3680 (check_default_tmpl_args): Likewise.
3681 (push_tinst_level_loc): Likewise.
3682 (instantiate_pending_templates): Likewise.
3683 (invalid_nontype_parm_type_p): Likewise.
3684 * repo.c (get_base_filename): Likewise.
3685 * rtti.c (typeid_ok_p): Likewise.
3686 (build_dynamic_cast_1): Likewise.
3687 * tree.c (maybe_warn_parm_abi): Likewise.
3689 2019-03-08 Jakub Jelinek <jakub@redhat.com>
3692 * parser.c (cp_parser_template_declaration_after_parameters): Avoid
3693 one space before " at the end of line and another after " on another
3694 line in a string literal.
3696 PR tree-optimization/89550
3697 * semantics.c (maybe_convert_cond): Only set TREE_NO_WARNING if
3698 warning_at returned true.
3699 * decl2.c (c_parse_final_cleanups): Likewise.
3700 * typeck.c (convert_for_assignment): Likewise.
3701 * decl.c (finish_function): Likewise.
3704 * parser.c (cp_parser_asm_definition): Just warn instead of error
3705 on volatile qualifier outside of function body.
3708 * constexpr.c (potential_constant_expression_1): Reject
3709 REINTERPRET_CAST_P NOP_EXPRs.
3712 * call.c (joust): Call print_z_candidate only if pedwarn returned
3715 2019-03-07 Jason Merrill <jason@redhat.com>
3717 PR c++/88123 - lambda and using-directive.
3718 * name-lookup.c (op_unqualified_lookup)
3719 (maybe_save_operator_binding, discard_operator_bindings)
3720 (push_operator_bindings): New.
3721 * typeck.c (build_x_binary_op, build_x_unary_op): Call
3722 maybe_save_operator_binding.
3723 * decl.c (start_preparsed_function): Call push_operator_bindings.
3724 * tree.c (cp_free_lang_data): Call discard_operator_bindings.
3726 PR c++/88820 - ICE with CTAD and member template used in DMI.
3727 * pt.c (do_class_deduction): Handle parm used as its own arg.
3729 2019-03-07 Jakub Jelinek <jakub@redhat.com>
3732 * parser.c (cp_parser_asm_definition): Parse asm qualifiers even
3733 at toplevel, but diagnose them.
3735 2019-03-06 Jason Merrill <jason@redhat.com>
3737 PR c++/89381 - implicit copy and using-declaration.
3738 * class.c (classtype_has_move_assign_or_move_ctor_p): Don't consider
3739 op= brought in by a using-declaration.
3741 2019-03-06 Jakub Jelinek <jakub@redhat.com>
3744 * init.c (build_value_init_noctor): Ignore flexible array members.
3746 2019-03-06 Jason Merrill <jason@redhat.com>
3748 PR c++/89576 - if constexpr of lambda capture.
3749 * semantics.c (maybe_convert_cond): Do convert a non-dependent
3750 condition in a template.
3751 * typeck.c (condition_conversion): Handle being called in a
3754 2019-03-06 Marek Polacek <polacek@redhat.com>
3756 PR c++/87378 - bogus -Wredundant-move warning.
3757 * typeck.c (maybe_warn_pessimizing_move): See if the maybe-rvalue
3758 overload resolution would actually succeed.
3760 2019-03-05 Jason Merrill <jason@redhat.com>
3762 * class.c (is_really_empty_class): Add ignore_vptr parm.
3763 (trivial_default_constructor_is_constexpr): Pass it.
3764 * call.c (build_over_call): Pass it.
3765 * constexpr.c (cxx_eval_constant_expression): Pass it instead of
3766 checking TYPE_POLYMORPHIC_P.
3767 (cxx_eval_component_reference, potential_constant_expression_1):
3769 * cp-gimplify.c (simple_empty_class_p): Pass it.
3770 * init.c (expand_aggr_init_1): Pass it.
3772 2019-03-04 Paolo Carlini <paolo.carlini@oracle.com>
3775 * parser.c (cp_parser_class_head): Reject TYPE_BEING_DEFINED too.
3777 2019-03-04 Jakub Jelinek <jakub@redhat.com>
3780 * call.c (field_in_pset): New function.
3781 (build_aggr_conv): Handle CONSTRUCTOR_IS_DESIGNATED_INIT correctly.
3783 2019-03-02 Jakub Jelinek <jakub@redhat.com>
3786 * cp-tree.h (CONSTRUCTOR_IS_DESIGNATED_INIT): Define.
3787 * parser.c (cp_parser_braced_list): Adjust cp_parser_initializer_list
3788 caller, set CONSTRUCTOR_IS_DESIGNATED_INIT.
3789 (cp_parser_initializer_list): Add designated parameter, set *designated
3790 to a bool whether any designators were parsed.
3791 * decl.c (reshape_init): Copy over CONSTRUCTOR_IS_DESIGNATED_INIT if
3793 * pt.c (tsubst_copy_and_build): Likewise.
3794 * call.c (implicit_conversion): If CONSTRUCTOR_IS_DESIGNATED_INIT,
3795 don't call build_list_conv, nor build_complex_conv, nor attempt to
3796 convert a single element initializer to scalar.
3798 2019-03-01 Marek Polacek <polacek@redhat.com>
3800 PR c++/89537 - missing location for error with non-static member fn.
3801 * call.c (resolve_args): Use EXPR_LOCATION.
3802 * typeck.c (build_class_member_access_expr): Use input_location.
3804 PR c++/89532 - ICE with incomplete type in decltype.
3805 * semantics.c (finish_compound_literal): Return error_mark_node
3806 if digest_init_flags returns error_mark_node.
3808 2019-03-01 Jakub Jelinek <jakub@redhat.com>
3810 Implement P1002R1, Try-catch blocks in constexpr functions
3812 * parser.c (cp_parser_ctor_initializer_opt_and_function_body):
3813 Diagnose constexpr ctor or function with function-try-block with
3814 pedwarn for c++17 and earlier. Formatting fix.
3815 (cp_parser_try_block): Use pedwarn instead of error and only for
3816 c++17 and earlier when try block appears in constexpr function.
3817 * constexpr.c (build_constexpr_constructor_member_initializers):
3818 Handle TRY_BLOCK here instead of erroring on it.
3820 2019-02-28 Jason Merrill <jason@redhat.com>
3822 PR c++/88183 - ICE with .* fold-expression.
3823 * pt.c (fold_expression) [DOTSTAR_EXPR]: Remove special handling.
3825 PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
3826 * class.c, lambda.c, pt.c: Revert earlier change.
3827 * lambda.c (add_capture): Don't special-case capture of dependent
3830 * name-lookup.c (print_binding_level): Print this_entity.
3832 2019-02-27 Marek Polacek <polacek@redhat.com>
3834 PR c++/88857 - ICE with value-initialization of argument in template.
3835 * call.c (convert_like_real): Don't call build_value_init in template.
3837 2019-02-27 Jason Merrill <jason@redhat.com>
3839 PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
3840 * semantics.c (process_outer_var_ref): Do capture dependent vars.
3841 * class.c (finish_struct): Only add TAG_DEFN if T is in
3842 current_function_decl.
3843 * lambda.c (vla_capture_type): Force the capture type out into the
3844 lambda's enclosing function.
3845 (add_capture): Pass in the lambda.
3846 * pt.c (tsubst_lambda_expr): complete_type a VLA capture type.
3848 2019-02-27 Marek Polacek <polacek@redhat.com>
3850 PR c++/89511 - ICE with using-declaration and unscoped enumerator.
3851 * parser.c (cp_parser_using_declaration): For an unscoped enum
3852 only use its context if it's not a function declaration.
3854 2019-02-27 Paolo Carlini <paolo.carlini@oracle.com>
3857 * method.c (process_subob_fn): When maybe_instantiate_noexcept
3858 returns false don't call merge_exception_specifiers.
3860 2019-02-27 Paolo Carlini <paolo.carlini@oracle.com>
3863 * parser.c (cp_parser_noexcept_specification_opt): Return NULL_TREE
3864 for a non-constant parsed expression.
3866 2019-02-26 Jakub Jelinek <jakub@redhat.com>
3869 * constexpr.c (cxx_eval_store_expression): When changing active union
3870 member, set no_zero_init.
3872 2019-02-23 Marek Polacek <polacek@redhat.com>
3874 PR c++/88294 - ICE with non-constant noexcept-specifier.
3875 * pt.c (maybe_instantiate_noexcept): Set up the list of local
3876 specializations. Set current_class_{ptr,ref}.
3878 2019-02-22 David Malcolm <dmalcolm@redhat.com>
3881 * parser.c (cp_parser_unqualified_id): Capture and use locations
3884 2019-02-22 Marek Polacek <polacek@redhat.com>
3886 PR c++/89420 - ICE with CAST_EXPR in explicit-specifier.
3887 * decl.c (build_explicit_specifier): Don't check
3888 processing_template_decl. Call instantiation_dependent_expression_p
3889 instead of value_dependent_expression_p. Call
3890 instantiate_non_dependent_expr_sfinae before
3891 build_converted_constant_expr instead of calling
3892 instantiate_non_dependent_expr after it. Add
3893 processing_template_decl_sentinel.
3895 2019-02-22 Thomas Schwinge <thomas@codesourcery.com>
3897 * parser.c (cp_parser_oacc_simple_clause): Remove parser formal
3898 parameter, move loc formal parameter to the front. Adjust all
3900 (cp_parser_oacc_shape_clause): Add loc formal parameter. Adjust
3903 2019-02-21 Jason Merrill <jason@redhat.com>
3905 PR c++/87685 - generic lambda 'this' capture error.
3906 * lambda.c (lambda_expr_this_capture): Change add_capture_p to int.
3907 (maybe_generic_this_capture): Pass -1.
3909 PR c++/88394 - ICE with VLA init-capture.
3910 * lambda.c (is_normal_capture_proxy): Check DECL_CAPTURED_VARIABLE.
3912 PR c++/88869 - C++17 ICE with CTAD and explicit specialization.
3913 * pt.c (do_class_deduction): Don't include explicit specialization
3916 PR c++/89422 - ICE with -g and lambda in default arg in template.
3917 * pt.c (tsubst_function_decl): SET_DECL_FRIEND_CONTEXT sooner.
3919 2019-02-21 Jason Merrill <jason@redhat.com>
3921 PR c++/88419 - C++17 ICE with class template arg deduction.
3922 * pt.c (make_template_placeholder): Set TYPE_CANONICAL after
3923 CLASS_PLACEHOLDER_TEMPLATE.
3925 2019-02-21 Jakub Jelinek <jakub@redhat.com>
3928 * constexpr.c (struct constexpr_fundef): Add parms and result members.
3929 (retrieve_constexpr_fundef): Adjust for the above change.
3930 (register_constexpr_fundef): Save constexpr body with copy_fn,
3931 temporarily set DECL_CONTEXT on DECL_RESULT before that.
3932 (get_fundef_copy): Change FUN argument to FUNDEF with
3933 constexpr_fundef * type, grab body and parms/result out of
3934 constexpr_fundef struct and temporarily change it for copy_fn calls
3936 (cxx_eval_builtin_function_call): For __builtin_FUNCTION temporarily
3937 adjust current_function_decl from ctx->call context. Test
3938 !potential_constant_expression instead of !is_constant_expression.
3939 (cxx_bind_parameters_in_call): Grab parameters from new_call. Undo
3940 convert_for_arg_passing changes for TREE_ADDRESSABLE type passing.
3941 (cxx_eval_call_expression): Adjust get_fundef_copy caller.
3942 (cxx_eval_conditional_expression): For IF_STMT, allow then or else
3943 operands to be NULL.
3944 (label_matches): Handle BREAK_STMT and CONTINUE_STMT.
3945 (cxx_eval_loop_expr): Add support for FOR_STMT, WHILE_STMT and DO_STMT.
3946 (cxx_eval_switch_expr): Add support for SWITCH_STMT.
3947 (cxx_eval_constant_expression): Handle IF_STMT, FOR_STMT, WHILE_STMT,
3948 DO_STMT, CONTINUE_STMT, SWITCH_STMT, BREAK_STMT and CONTINUE_STMT.
3949 For SIZEOF_EXPR, recurse on the result of fold_sizeof_expr. Ignore
3950 DECL_EXPR with USING_DECL operand.
3951 * lambda.c (maybe_add_lambda_conv_op): Build thisarg using
3952 build_int_cst to make it a valid constant expression.
3954 2019-02-20 Jason Merrill <jason@redhat.com>
3956 PR c++/88690 - C++17 ICE with empty base in aggregate.
3957 * typeck2.c (process_init_constructor_record): Skip trivial
3958 initialization of an empty base.
3960 2019-02-21 Richard Biener <rguenther@suse.de>
3963 * vtable-class-hierarchy.c (vtv_generate_init_routine): Do not
3964 make symtab process new functions here.
3966 2019-02-20 Jason Merrill <jason@redhat.com>
3968 PR c++/87921 - wrong error with inline static data member.
3969 * decl2.c (finish_static_data_member_decl): Don't set DECL_IN_AGGR_P
3970 for a non-template inline variable. Do nothing for an
3971 already-instantiated variable.
3972 (c_parse_final_cleanups): Check DECL_IN_AGGR_P without
3974 * decl.c (check_initializer): Likewise.
3975 (make_rtl_for_nonlocal_decl): Likewise.
3976 * pt.c (instantiate_decl): Likewise.
3977 * typeck2.c (store_init_value): Likewise.
3979 2019-02-20 Jakub Jelinek <jakub@redhat.com>
3982 * decl2.c (c_parse_final_cleanups): Move TREE_ASM_WRITTEN setting
3983 for flag_syntax_only from here...
3984 * semantics.c (expand_or_defer_fn_1): ... here.
3987 * decl.c (maybe_commonize_var): When clearing TREE_PUBLIC and
3988 DECL_COMMON, set DECL_INTERFACE_KNOWN.
3991 * constexpr.c (cxx_eval_store_expression): Diagnose changing of active
3992 union member for -std=c++17 and earlier.
3994 2019-02-19 Jason Merrill <jason@redhat.com>
3996 PR c++/87513 - 'sorry' mangling PMF template-id.
3997 * mangle.c (write_expression): Handle SCOPE_REF to BASELINK.
3999 2019-02-19 Jason Merrill <jason@redhat.com>
4001 PR c++/88380 - wrong-code with flexible array and NSDMI.
4002 * typeck2.c (process_init_constructor_record): Skip flexarrays.
4004 2019-02-20 will wray <wjwray@gmail.com>
4006 PR c++/88572 - wrong handling of braces on scalar init.
4007 * decl.c (reshape_init_r): Allow braces around scalar initializer
4008 within aggregate init. Reject double braced-init of scalar
4011 2019-02-20 Paolo Carlini <paolo.carlini@oracle.com>
4014 * pt.c (tsubst_init): Diagnose an initializer expanding to an
4015 empty list of expressions; tweak wrt dependent types.
4016 (regenerate_decl_from_template): For VAR_DECLs call tsubst_init
4017 instead of tsubst_expr.
4019 2019-02-19 Jason Merrill <jason@redhat.com>
4021 PR c++/88368 - wrong 'use of deleted function'
4022 * method.c (walk_field_subobs): Remember errors from get_nsdmi.
4023 (get_defaulted_eh_spec): Call push_tinst_level.
4024 * pt.c (maybe_instantiate_noexcept): Keep error_mark_node.
4025 * typeck2.c (merge_exception_specifiers): Handle error_mark_node.
4027 2019-02-19 Chung-Lin Tang <cltang@codesourcery.com>
4030 * parser.c (cp_parser_oacc_clause_wait): Add representation of wait
4031 clause without argument as 'wait (GOMP_ASYNC_NOVAL)', adjust comments.
4033 2019-02-19 Jakub Jelinek <jakub@redhat.com>
4036 * lambda.c (maybe_generic_this_capture): Don't check
4037 DECL_NONSTATIC_MEMBER_FUNCTION_P on USING_DECLs.
4040 * typeck.c (build_reinterpret_cast_1): Don't handle void to
4041 && conversion go through build_target_expr_with_type.
4044 * error.c (qualified_name_lookup_error): Only call
4045 suggest_alternative_in_scoped_enum if name is IDENTIFIER_NODE.
4047 2019-02-19 Tom Honermann <tom@honermann.net>
4049 * name-lookup.c (get_std_name_hint): Added u8string as a name hint.
4051 2019-02-18 Jason Merrill <jason@redhat.com>
4053 PR c++/89336 - multiple stores in constexpr stmt.
4054 * constexpr.c (cxx_eval_store_expression): Preevaluate scalar or
4057 * pt.c (check_explicit_specialization): If the declarator is a
4058 template-id, only check whether the arguments are dependent.
4060 Improve duplicate [[likely]] diagnostic.
4061 * parser.c (cp_parser_statement): Make attrs_loc a range. Pass it
4062 to process_stmt_hotness_attribute.
4063 * cp-gimplify.c (process_stmt_hotness_attribute): Take attrs_loc.
4064 (genericize_if_stmt): Use likely/unlikely instead of predictor_name.
4066 2019-02-17 Marek Polacek <polacek@redhat.com>
4068 PR c++/89217 - ICE with list-initialization in range-based for loop.
4069 * constexpr.c (unshare_constructor): No longer static.
4070 * cp-tree.h (unshare_constructor): Declare.
4071 * semantics.c (finish_compound_literal): When dealing with a
4072 non-dependent expression in a template, return the original
4073 expression. Pass LOOKUP_NO_NARROWING to digest_init_flags.
4075 2019-02-13 Marek Polacek <polacek@redhat.com>
4077 PR c++/89297 - ICE with OVERLOAD in template.
4078 * semantics.c (finish_compound_literal): Call
4079 instantiate_non_dependent_expr_sfinae.
4081 2019-02-13 Alexandre Oliva <aoliva@redhat.com>
4084 * cp-tree.h (USING_DECL_SCOPE): Use result rather than type.
4085 * name-lookup.c (strip_using_decl): Use USING_DECL_SCOPE.
4086 * search.c (protected_accessible_p): Follow USING_DECL_DECLS.
4087 (shared_member_p): Likewise.
4088 (lookup_member): Likewise.
4089 * decl.c (grok_special_member_properties): Skip USING_DECLs.
4090 * semantics.c (finish_omp_declare_simd_methods): Likewise.
4091 (finish_qualified_id_expr): Do not call shared_member_p with
4095 * pt.c (tsubst_lambda_expr): Avoid duplicate tsubsting.
4096 Move cp_evaluated resetting before signature tsubsting.
4097 (gen_elem_of_pack_expansion_instantiation): Separate local
4098 specializations per index.
4100 2019-02-13 David Malcolm <dmalcolm@redhat.com>
4103 * class.c (add_method): Drop destructor assertion.
4105 2019-02-13 Paolo Carlini <paolo.carlini@oracle.com>
4108 * decl.c (make_typename_type): Allow for TYPE_PACK_EXPANSION as
4109 context (the first argument).
4110 * pt.c (tsubst, case TYPENAME_TYPE): Handle TYPE_PACK_EXPANSION
4113 2019-02-12 Jason Merrill <jason@redhat.com>
4115 PR c++/89144 - link error with constexpr initializer_list.
4116 * call.c (convert_like_real) [ck_list]: Don't allocate a temporary
4117 array for an empty list.
4118 * typeck2.c (store_init_value): Don't use cxx_constant_init in a
4121 2019-02-11 Jason Merrill <jason@redhat.com>
4123 PR c++/89241 - ICE with __func__ in lambda in template.
4124 * pt.c (enclosing_instantiation_of): Also check
4125 instantiated_lambda_fn_p for the template context.
4127 2019-02-11 Marek Polacek <polacek@redhat.com>
4129 PR c++/89212 - ICE converting nullptr to pointer-to-member-function.
4130 * pt.c (tsubst_copy_and_build) <case CONSTRUCTOR>: Return early for
4131 null member pointer value.
4133 2019-02-11 Jakub Jelinek <jakub@redhat.com>
4136 * pt.c (convert_nontype_argument): Pass true as manifestly_const_eval
4137 to maybe_constant_value calls.
4139 2019-02-11 Marek Polacek <polacek@redhat.com>
4141 * typeck2.c (digest_init_r): Remove commented code.
4143 2019-02-11 Martin Sebor <msebor@redhat.com>
4146 * decl.c (compute_array_index_type_loc): Preserve signed sizes
4147 for diagnostics. Call valid_array_size_p instead of error.
4148 * init.c (build_new_1): Compute size for diagnostic. Call
4149 invalid_array_size_error
4150 (build_new): Call valid_array_size_p instead of error.
4152 2019-02-07 Alexandre Oliva <aoliva@redhat.com>
4155 * call.c (compare_ics): Deal with ck_aggr in either cs.
4157 2019-02-06 David Malcolm <dmalcolm@redhat.com>
4160 * call.c (get_location_for_expr_unwinding_for_system_header): New
4162 (conversion_null_warnings): Use it when getting locations for
4163 EXPR, effectively adding a call to
4164 get_location_for_expr_unwinding_for_system_header for
4165 -Wconversion-null and making use of EXPR_LOCATION for
4166 -Wzero-as-null-pointer-constant.
4168 2019-02-05 Jakub Jelinek <jakub@redhat.com>
4171 * optimize.c (maybe_thunk_body): Clear TREE_ADDRESSABLE on
4172 PARM_DECLs of the thunk.
4173 * lambda.c (maybe_add_lambda_conv_op): Likewise.
4175 2019-02-05 Marek Polacek <polacek@redhat.com>
4177 PR c++/89158 - by-value capture of constexpr variable broken.
4178 * call.c (convert_like_real) <case ck_user>: Call mark_exp_read
4179 instead of mark_rvalue_use.
4181 2019-02-05 Alexandre Oliva <aoliva@redhat.com>
4184 * pt.c (instantiates_primary_template_p): New.
4185 (type_dependent_expression_p): Use it.
4187 2019-02-01 Jason Merrill <jason@redhat.com>
4189 PR c++/88761 - ICE with reference capture of constant.
4190 * lambda.c (mark_const_cap_r): Do walk subtrees of DECL_EXPR for
4193 2019-02-01 Marek Polacek <polacek@redhat.com>
4195 PR c++/88325 - ICE with invalid out-of-line template member definition.
4196 * parser.c (cp_parser_class_name): Don't call make_typename_type
4199 2019-02-01 Jakub Jelinek <jakub@redhat.com>
4202 * parser.c (cp_parser_gnu_attributes_opt): Set ok to false
4203 if require_open failed.
4205 2019-01-31 Marek Polacek <polacek@redhat.com>
4207 PR c++/89083, c++/80864 - ICE with list initialization in template.
4208 * constexpr.c (adjust_temp_type): Use copy_node and change the type
4209 instead of using build_constructor.
4210 * decl.c (reshape_init_r): Don't reshape a digested initializer.
4211 Return the initializer for COMPOUND_LITERAL_P.
4213 PR c++/88983 - ICE with switch in constexpr function.
4214 * constexpr.c (cxx_eval_switch_expr): Use SWITCH_COND and SWITCH_BODY.
4215 (cxx_eval_constant_expression) <case COND_EXPR>: Don't look for the
4216 label in the else branch if we found it in the then branch.
4218 2019-01-30 Jason Merrill <jason@redhat.com>
4220 PR c++/88752 - ICE with lambda and constexpr if.
4221 * cp-tree.h (LAMBDA_EXPR_INSTANTIATED): New.
4222 * pt.c (tsubst_lambda_expr): Set it.
4223 (instantiated_lambda_fn_p): Check it.
4224 (enclosing_instantiation_of): Use it.
4226 2019-01-31 Jakub Jelinek <jakub@redhat.com>
4229 * cxx-pretty-print.c (pp_cxx_enumeration_constant): Print always as
4230 a C cast in pp_c_flag_gnu_v3 mode.
4232 2019-01-30 Jakub Jelinek <jakub@redhat.com>
4235 * lambda.c (is_capture_proxy): Don't return true for
4236 DECL_OMP_PRIVATIZED_MEMBER artificial vars.
4238 2019-01-30 Marek Polacek <polacek@redhat.com>
4240 PR c++/89119 - ICE with value-initialization in template.
4241 * pt.c (tsubst_copy_and_build): Handle RANGE_EXPR.
4243 2019-01-29 Jason Merrill <jason@redhat.com>
4245 PR c++/86943 - wrong code converting lambda to function pointer.
4246 * lambda.c (maybe_add_lambda_conv_op): Use a template-id in the
4247 call. Only forward parms for decltype.
4248 * pt.c (tsubst_copy_and_build) [CALL_EXPR]: Handle CALL_FROM_THUNK_P
4250 * typeck.c (check_return_expr): Don't mess with a thunk call.
4252 2019-01-28 Jason Merrill <jason@redhat.com>
4254 PR c++/89089 - ICE with [[no_unique_address]].
4255 PR c++/88865 - wrong layout with [[no_unique_address]].
4256 * class.c (check_field_decls): A potentially-overlapping field makes
4257 the class non-layout-POD, but not non-empty.
4258 (end_of_class): Always consider empty data members.
4259 (layout_class_type): Set DECL_SIZE for empty fields.
4261 2019-01-28 Marek Polacek <polacek@redhat.com>
4263 PR c++/88358 - name wrongly treated as type.
4264 * parser.c (cp_parser_direct_declarator): Don't assume a qualified-id
4265 in parameter-list is a type if the function's declarator-id is not
4268 2019-01-27 Marek Polacek <polacek@redhat.com>
4270 PR c++/88815 - narrowing conversion lost in decltype.
4271 PR c++/78244 - narrowing conversion in template not detected.
4272 * cp-tree.h (CONSTRUCTOR_IS_DEPENDENT): New.
4273 * pt.c (instantiation_dependent_r): Consider a CONSTRUCTOR with
4274 CONSTRUCTOR_IS_DEPENDENT instantiation-dependent.
4275 * semantics.c (finish_compound_literal): When the compound literal
4276 isn't instantiation-dependent and the type isn't type-dependent,
4277 fall back to the normal processing. Set CONSTRUCTOR_IS_DEPENDENT.
4279 PR c++/89024 - ICE with incomplete enum type.
4280 * call.c (standard_conversion): When converting an
4281 ARITHMETIC_TYPE_P to an incomplete type, return NULL.
4283 2019-01-25 Paolo Carlini <paolo.carlini@oracle.com>
4286 * call.c (build_op_delete_call): Implement 7.6.2.5/(10.1).
4287 * decl2.c (coerce_delete_type): Use build_pointer_type instead
4290 2019-01-24 Jason Merrill <jason@redhat.com>
4292 PR c++/89001 - mangling of reference temporaries
4293 * cp-tree.h (struct saved_scope): Add ref_temp_count.
4294 (current_ref_temp_count): New macro.
4295 * mangle.c (mangle_ref_init_variable): Use it.
4296 * typeck2.c (store_init_value): Clear it.
4297 * call.c (make_temporary_var_for_ref_to_temp): Copy public and
4300 2019-01-24 Jakub Jelinek <jakub@redhat.com>
4303 * semantics.c (finish_omp_cancel): Diagnose more than one if
4304 on #pragma omp cancel with different modifiers. Use
4305 maybe_convert_cond when not in template or build_x_binary_op
4308 2019-01-23 Marek Polacek <polacek@redhat.com>
4310 PR c++/88757 - qualified name treated wrongly as type.
4311 * parser.c (cp_parser_direct_declarator): Don't treat qualified-ids
4312 in parameter-list as types if name lookup for declarator-id didn't
4313 find one or more function templates.
4315 2019-01-23 Jakub Jelinek <jakub@redhat.com>
4318 * cp-gimplify.c (genericize_cp_loop): Call begin_bc_block only
4319 after genericizing cond and incr expressions.
4322 * cp-gimplify.c (genericize_switch_stmt): Move cond genericization
4323 before the begin_bc_block call.
4325 2019-01-21 Jason Merrill <jason@redhat.com>
4327 PR c++/87893 - constexpr ctor ICE on ARM.
4328 PR c++/88293 - ICE with comma expression.
4329 * constexpr.c (initialized_type): Don't shortcut non-void type.
4330 Handle COMPOUND_EXPR.
4331 (cxx_eval_outermost_constant_expr): Return early for void type.
4333 2019-01-21 Jakub Jelinek <jakub@redhat.com>
4336 * optimize.c (cxx_copy_decl): New function.
4337 (clone_body): Use it instead of copy_decl_no_change.
4340 * typeck.c (cp_build_binary_op): Don't instrument
4341 SANITIZE_POINTER_COMPARE if processing_template_decl.
4342 (pointer_diff): Similarly for SANITIZE_POINTER_SUBTRACT.
4344 2019-01-18 Jason Merrill <jason@redhat.com>
4346 PR c++/88875 - error with explicit list constructor.
4347 * call.c (reference_binding): Don't modify EXPR. Set
4348 need_temporary_p on the ck_user conversion for a temporary.
4349 (convert_like_real): Check it.
4351 2019-01-18 H.J. Lu <hongjiu.lu@intel.com>
4355 * call.c (convert_for_arg_passing): Upate the
4356 warn_for_address_or_pointer_of_packed_member call.
4357 * typeck.c (convert_for_assignment): Likewise.
4359 2019-01-17 Jason Merrill <jason@redhat.com>
4361 PR c++/86205 - ICE with ?: of throw and template-id.
4362 * pt.c (resolve_nondeduced_context_or_error): Split out from...
4363 * typeck.c (decay_conversion): ...here.
4364 * call.c (build_conditional_expr_1): Use it.
4366 PR c++/86740, ICE with constexpr if and nested generic lambdas.
4367 * tree.c (cp_walk_subtrees): Handle LAMBDA_EXPR.
4369 2019-01-17 Paolo Carlini <paolo.carlini@oracle.com>
4371 * decl.c (grokdeclarator): Use typespec_loc in error messages
4372 about 'auto' and trailing return type.
4374 2019-01-17 David Malcolm <dmalcolm@redhat.com>
4377 * class.c (add_method): Don't use DECL_DESTRUCTOR_P on
4380 2019-01-17 Nathan Sidwell <nathan@acm.org>
4383 * semantics.c (process_outer_var_ref): Only skip dependent types
4386 2019-01-17 Alexandre Oliva <aoliva@redhat.com>
4389 * cp-tree.h (saved_scope): Add suppress_location_wrappers.
4390 * name-lookup.c (do_push_to_top_level): Save and reset it.
4391 (do_pop_from_top_level): Restore it.
4394 * pt.c (make_template_placeholder): Use auto_identifier.
4395 (is_auto): Drop CLASS_PLACEHOLDER_TEMPLATE test.
4396 * error.c (dump_type): Handle template placeholders.
4397 * cxx-pretty-print.c (pp_cx_unqualified_id): Likewise.
4400 * cvt.c (convert_to_void): Handle all cdtor calls as if
4403 2019-01-16 Paolo Carlini <paolo.carlini@oracle.com>
4405 * decl.c (grokdeclarator): Use locations[ds_storage_class] in
4406 error messages about ill-formed uses of mutable.
4408 2019-01-16 Marek Polacek <polacek@redhat.com>
4410 PR c++/78244 - narrowing conversion in template not detected.
4411 * call.c (perform_implicit_conversion_flags): Set
4412 IMPLICIT_CONV_EXPR_BRACED_INIT.
4413 * cp-tree.h (IMPLICIT_CONV_EXPR_BRACED_INIT): New.
4414 * pt.c (tsubst_copy_and_build): Use it.
4416 2019-01-15 David Malcolm <dmalcolm@redhat.com>
4419 * pt.c (build_deduction_guide): Bail out if tsubst_arg_types
4422 2019-01-15 Paolo Carlini <paolo.carlini@oracle.com>
4424 * decl.c (start_decl): Improve error location.
4425 * decl2.c (grokfield): Likewise.
4427 2019-01-15 Paolo Carlini <paolo.carlini@oracle.com>
4429 * decl.c (grokdeclarator): Move further up the location_t loc
4430 declaration and use the location when building a TYPE_DECL for
4432 * decl2.c (grokbitfield): Use DECL_SOURCE_LOCATION in the error
4433 about an ill-formed bit-field as typedef.
4435 2019-01-14 Marek Polacek <polacek@redhat.com>
4437 PR c++/88830 - ICE with abstract class.
4438 * decl2.c (maybe_emit_vtables): Check CLASSTYPE_LAZY_DESTRUCTOR.
4441 PR c++/88825 - ICE with bogus function return type deduction.
4442 * typeck.c (can_do_nrvo_p): Check error_mark_node.
4444 2019-01-14 Tom Honermann <tom@honermann.net>
4446 Implement P0482R5, char8_t: A type for UTF-8 characters and strings
4447 * cvt.c (type_promotes_to): Handle char8_t promotion.
4448 * decl.c (grokdeclarator): Handle invalid type specifier
4449 combinations involving char8_t.
4450 * lex.c (init_reswords): Add char8_t as a reserved word.
4451 * mangle.c (write_builtin_type): Add name mangling for char8_t (Du).
4452 * parser.c (cp_keyword_starts_decl_specifier_p)
4453 (cp_parser_simple_type_specifier): Recognize char8_t as a simple
4455 (cp_parser_string_literal): Use char8_array_type_node for the type
4457 (cp_parser_set_decl_spec_type): Tolerate char8_t typedefs in system
4459 * rtti.c (emit_support_tinfos): type_info support for char8_t.
4460 * tree.c (char_type_p): Recognize char8_t as a character type.
4461 * typeck.c (string_conv_p): Handle conversions of u8 string
4462 literals of char8_t type.
4463 (check_literal_operator_args): Handle UDLs with u8 string literals
4465 * typeck2.c (ordinary_char_type_p): New.
4466 (digest_init_r): Disallow initializing a char array with a u8 string
4469 2019-01-14 Martin Liska <mliska@suse.cz>
4471 PR gcov-profile/88263
4472 * decl2.c (get_tls_wrapper_fn): Use DECL_SOURCE_LOCATION
4473 as location of the TLS wrapper.
4475 2019-01-12 Paolo Carlini <paolo.carlini@oracle.com>
4477 * decl.c (cp_finish_decl): Improve error location.
4478 * decl2.c (grokfield): Likewise, improve two locations.
4480 2019-01-11 Marek Polacek <polacek@redhat.com>
4482 PR c++/88692, c++/87882 - -Wredundant-move false positive with *this.
4483 * typeck.c (maybe_warn_pessimizing_move): Return if ARG isn't
4486 2019-01-11 Jason Merrill <jason@redhat.com>
4488 PR c++/88312 - pack expansion of decltype.
4489 * pt.c (instantiation_dependent_r): A template non-type parameter
4490 pack is instantiation-dependent.
4492 2019-01-11 Jason Merrill <jason@redhat.com>
4494 PR c++/88613 - ICE with use of const var in lambda.
4495 * expr.c (mark_use): Fix location wrapper handling.
4496 * cp-gimplify.c (cp_fold_maybe_rvalue): Call mark_rvalue_use.
4498 2019-01-11 Tobias Burnus <burnus@net-b.de>
4501 * decl2.c (maybe_emit_vtables): If needed, generate code for
4502 the destructor of an abstract class.
4503 (mark_used): Update comment for older function-name change.
4505 2019-01-11 Paolo Carlini <paolo.carlini@oracle.com>
4507 * decl.c (start_decl): Improve error location.
4508 (grokdeclarator): Likewise, improve two locations.
4510 2019-01-09 Sandra Loosemore <sandra@codesourcery.com>
4514 * cp-tree.h: Mechanically replace "can not" with "cannot".
4515 * parser.c: Likewise.
4518 2019-01-08 Paolo Carlini <paolo.carlini@oracle.com>
4520 * decl.c (grok_reference_init): Improve error location.
4521 (grokdeclarator): Likewise, improve two locations.
4523 2019-01-08 Marek Polacek <polacek@redhat.com>
4525 PR c++/88538 - braced-init-list in template-argument-list.
4526 * parser.c (cp_parser_template_argument): Handle braced-init-list when
4529 PR c++/88548 - this accepted in static member functions.
4530 * parser.c (cp_debug_parser): Adjust printing of
4531 local_variables_forbidden_p.
4532 (cp_parser_new): Set local_variables_forbidden_p to 0 rather than false.
4533 (cp_parser_primary_expression): When checking
4534 local_variables_forbidden_p, use THIS_FORBIDDEN or
4535 LOCAL_VARS_FORBIDDEN.
4536 (cp_parser_lambda_body): Update the type of
4537 local_variables_forbidden_p. Set it to 0 rather than false.
4538 (cp_parser_condition): Adjust call to cp_parser_declarator.
4539 (cp_parser_explicit_instantiation): Likewise.
4540 (cp_parser_init_declarator): Likewise.
4541 (cp_parser_declarator): New parameter. Use it.
4542 (cp_parser_direct_declarator): New parameter. Use it to set
4543 local_variables_forbidden_p. Adjust call to cp_parser_declarator.
4544 (cp_parser_type_id_1): Adjust call to cp_parser_declarator.
4545 (cp_parser_parameter_declaration): Likewise.
4546 (cp_parser_default_argument): Update the type of
4547 local_variables_forbidden_p. Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
4549 (cp_parser_member_declaration): Tell cp_parser_declarator if we saw
4550 'static' or 'friend'.
4551 (cp_parser_exception_declaration): Adjust call to cp_parser_declarator.
4552 (cp_parser_late_parsing_default_args): Update the type of
4553 local_variables_forbidden_p. Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
4555 (cp_parser_cache_defarg): Adjust call to cp_parser_declarator.
4556 (cp_parser_objc_class_ivars): Likewise.
4557 (cp_parser_objc_struct_declaration): Likewise.
4558 (cp_parser_omp_for_loop_init): Likewise.
4559 * parser.h (cp_parser): Change the type of local_variables_forbidden_p
4561 (LOCAL_VARS_FORBIDDEN, LOCAL_VARS_AND_THIS_FORBIDDEN, THIS_FORBIDDEN):
4564 2019-01-08 Paolo Carlini <paolo.carlini@oracle.com>
4566 * decl.c (start_decl): Improve permerror location.
4568 2019-01-08 Jonathan Wakely <jwakely@redhat.com>
4569 Jakub Jelinek <jakub@redhat.com>
4572 * decl.c (finish_function): For -Wreturn-type don't add a return *this;
4573 fixit hint if current_class_ref is NULL. Use a single if instead of
4576 2019-01-07 Paolo Carlini <paolo.carlini@oracle.com>
4578 * decl.c (start_decl): Improve two error_at locations.
4579 (expand_static_init): Likewise.
4581 2019-01-07 Marek Polacek <polacek@redhat.com>
4583 PR c++/88741 - wrong error with initializer-string.
4584 * decl.c (cp_complete_array_type): Strip any location wrappers.
4586 2019-01-07 Bernd Edlinger <bernd.edlinger@hotmail.de>
4592 * cp-tree.h (LOOKUP_ALLOW_FLEXARRAY_INIT): New flag value.
4593 * typeck2.c (digest_init_r): Raise an error for non-static
4594 initialization of a flexible array member.
4595 (process_init_constructor, massage_init_elt,
4596 process_init_constructor_array, process_init_constructor_record,
4597 process_init_constructor_union, process_init_constructor): Add the
4598 flags parameter and pass it thru.
4599 (store_init_value): Pass LOOKUP_ALLOW_FLEXARRAY_INIT parameter to
4600 digest_init_flags for static decls.
4602 2019-01-07 Jakub Jelinek <jakub@redhat.com>
4605 * cp-tree.h (cp_build_vec_convert): Declare.
4606 * parser.c (cp_parser_postfix_expression): Parse
4607 __builtin_convertvector.
4608 * constexpr.c: Include fold-const-call.h.
4609 (cxx_eval_internal_function): Handle IFN_VEC_CONVERT.
4610 (potential_constant_expression_1): Likewise.
4611 * semantics.c (cp_build_vec_convert): New function.
4612 * pt.c (tsubst_copy_and_build): Handle CALL_EXPR to
4615 2019-01-03 Jakub Jelinek <jakub@redhat.com>
4618 * decl.c (builtin_function_1): Return result of pushdecl_top_level
4619 or pushdecl rather than decl.
4621 2019-01-03 Paolo Carlini <paolo.carlini@oracle.com>
4623 * tree.c (handle_nodiscard_attribute): Improve warning location.
4625 2019-01-02 Marek Polacek <polacek@redhat.com>
4627 PR c++/88612 - ICE with -Waddress-of-packed-member.
4628 * call.c (convert_for_arg_passing): Only give warnings with tf_warning.
4629 * typeck.c (convert_for_assignment): Likewise.
4631 PR c++/88631 - CTAD failing for value-initialization.
4632 * typeck2.c (build_functional_cast): Try deducing the template
4633 arguments even if there are no arguments to deduce from.
4635 2019-01-01 Jakub Jelinek <jakub@redhat.com>
4637 Update copyright years.
4639 Copyright (C) 2019 Free Software Foundation, Inc.
4641 Copying and distribution of this file, with or without modification,
4642 are permitted in any medium without royalty provided the copyright
4643 notice and this notice are preserved.