1 2019-11-17 Jakub Jelinek <jakub@redhat.com>
3 * method.c (lookup_comparison_result): Use %qD instead of %<%T::%D%>
5 (lookup_comparison_category): Use %qD instead of %<std::%D%> to print
8 2019-11-15 Paolo Carlini <paolo.carlini@oracle.com>
10 * typeck.c (cp_truthvalue_conversion): Add tsubst_flags_t parameter
11 and use it in calls; also pass the location_t of the expression to
12 cp_build_binary_op and c_common_truthvalue_conversion.
13 * rtti.c (build_dynamic_cast_1): Adjust call.
14 * cvt.c (ocp_convert): Likewise.
15 * cp-gimplify.c (cp_fold): Likewise.
16 * cp-tree.h (cp_truthvalue_conversion): Update declaration.
18 2019-11-14 Jason Merrill <jason@redhat.com>
20 Implement P1816R0, class template argument deduction for aggregates.
21 * pt.c (maybe_aggr_guide, collect_ctor_idx_types): New.
22 (is_spec_or_derived): Split out from do_class_deduction.
23 (build_deduction_guide): Handle aggregate guide.
24 * class.c (finish_struct): Set CLASSTYPE_NON_AGGREGATE in a
26 * cp-tree.h (CP_AGGREGATE_TYPE_P): An incomplete class is not an
29 2019-11-14 Richard Sandiford <richard.sandiford@arm.com>
31 * call.c (build_conditional_expr_1): Use truth_type_for instead
32 of build_same_sized_truth_vector_type.
33 * typeck.c (build_vec_cmp): Likewise.
35 2019-11-14 Jakub Jelinek <jakub@redhat.com>
37 * parser.c (cp_parser_omp_context_selector): Don't require score
38 argument to fit into shwi, just to be INTEGER_CST. Diagnose
40 * pt.c (tsubst_attribute): Likewise.
42 * parser.c (cp_parser_omp_context_selector): Rename
43 CTX_PROPERTY_IDLIST to CTX_PROPERTY_NAME_LIST, add CTX_PROPERTY_ID.
44 Use CTX_PROPERTY_ID for atomic_default_mem_order, only allow a single
45 identifier in that. For CTX_PROPERTY_NAME_LIST, allow identifiers
47 * pt.c (tsubst_attribute): Fix up STRING_CST handling if allow_string.
49 2019-11-13 Marek Polacek <polacek@redhat.com>
51 PR c++/89070 - bogus [[nodiscard]] warning in SFINAE.
52 * cvt.c (convert_to_void): Guard maybe_warn_nodiscard calls with
55 2019-11-13 Richard Sandiford <richard.sandiford@arm.com>
58 * cp-tree.h (STF_STRIP_DEPENDENT): New constant.
59 * tree.c (strip_typedefs): Add STF_STRIP_DEPENDENT to the flags
60 when calling strip_typedefs recursively on a DECL_ORIGINAL_TYPE.
61 Don't apply the fix for DR1558 in that case; allow aliases with
62 dependent template parameters to be stripped instead.
64 2019-11-12 Nathan Sidwell <nathan@acm.org>
66 * name-lookup.c (lookup_using_decl): New function, merged from ...
67 (do_class_using_decl): ... here. Call it. And ...
68 (finish_nonmember_using_decl): ... here. Call it.
70 2019-11-12 Martin Liska <mliska@suse.cz>
72 * name-lookup.c: Do not include params.h.
75 2019-11-12 Martin Liska <mliska@suse.cz>
77 * name-lookup.c (namespace_hints::namespace_hints): Replace old
78 parameter syntax with the new one, include opts.h if needed. Use
79 SET_OPTION_IF_UNSET macro.
80 * typeck.c (comptypes): Likewise.
82 2019-11-12 Maciej W. Rozycki <macro@codesourcery.com>
83 Frederik Harwath <frederik@codesourcery.com>
86 * constexpr.c (potential_constant_expression_1): Handle
88 * parser.c (OACC_SERIAL_CLAUSE_MASK): New macro.
89 (cp_parser_oacc_kernels_parallel): Rename function to...
90 (cp_parser_oacc_compute): ... this. Handle PRAGMA_OACC_SERIAL.
91 (cp_parser_omp_construct): Update accordingly.
92 (cp_parser_pragma): Handle PRAGMA_OACC_SERIAL. Fix alphabetic
94 * pt.c (tsubst_expr): Handle OACC_SERIAL.
96 2019-11-11 Jason Merrill <jason@redhat.com>
98 Implement P1946R0, Allow defaulting comparisons by value.
99 * method.c (early_check_defaulted_comparison): Accept by-value,
100 reject mixed by-value and by-reference parms.
101 * decl.c (grokdeclarator): Set funcdef_flag for defaulted friend.
102 * decl2.c (grokfield): Don't SET_DECL_FRIEND_CONTEXT.
104 * typeck.c (cp_build_binary_op): Sorry about <=> on VECTOR_TYPE.
106 2019-11-11 Jakub Jelinek <jakub@redhat.com>
109 * decl.c (finish_function): Move ctype initialization before
110 DECL_DELETED_FN handling.
112 * semantics.c (finish_translation_unit): Diagnose declare target
113 without corresponding end declare target.
115 2019-11-10 Jason Merrill <jason@redhat.com>
117 Implement D1957R0, T* to bool should be considered narrowing.
118 * typeck2.c (check_narrowing): Treat pointer->bool as a narrowing
119 conversion with -std=c++2a.
121 2019-11-08 Marek Polacek <polacek@redhat.com>
123 PR c++/92215 - flawed diagnostic for bit-field with non-integral type.
124 * parser.c (cp_parser_member_declaration): Add a diagnostic for
125 bit-fields with non-integral types.
127 2019-11-08 Jakub Jelinek <jakub@redhat.com>
129 * init.c (build_vec_delete_1): Fix a comment typo - mist -> must.
131 2019-11-07 Jason Merrill <jason@redhat.com>
133 Implement D1959R0, remove weak_equality and strong_equality.
134 * method.c (enum comp_cat_tag, comp_cat_info): Remove *_equality.
135 (genericize_spaceship, common_comparison_type): Likewise.
136 * typeck.c (cp_build_binary_op): Move SPACESHIP_EXPR to be with the
137 relational operators, exclude other types no longer supported.
139 2019-11-06 Jason Merrill <jason@redhat.com>
141 Implement D1907R1 "structural type".
142 * tree.c (structural_type_p): New.
143 * pt.c (invalid_nontype_parm_type_p): Use it.
144 * class.c (build_base_field_1): Take binfo. Copy TREE_PRIVATE.
145 (build_base_field): Pass binfo.
147 PR c++/92150 - partial specialization with class NTTP.
148 * pt.c (unify): Handle VIEW_CONVERT_EXPR.
150 * pt.c (use_pack_expansion_extra_args_p): Still do substitution if
151 all packs are simple pack expansions.
152 (add_extra_args): Check that the extra args aren't dependent.
154 2019-11-06 Andrew Sutton <asutton@lock3software.com>
156 Use satisfaction with nested requirements.
157 * constraint.cc (build_parameter_mapping): Use
158 current_template_parms when the declaration is not available.
159 (norm_info::norm_info) Make explicit.
160 (normalize_constraint_expression): Factor into a separate overload
161 that takes arguments, and use that in the original function.
162 (tsubst_nested_requirement): Use satisfy_constraint instead of
163 trying to evaluate this as a constant expression.
164 (finish_nested_requirement): Keep the normalized constraint and the
165 original normalization arguments with the requirement.
166 (diagnose_nested_requirement): Use satisfy_constraint. Tentatively
167 implement more comprehensive diagnostics, but do not enable.
168 * parser.c (cp_parser_requires_expression): Relax requirement that
169 requires-expressions can live only inside templates.
170 * pt.c (any_template_parm_r): Look into type of PARM_DECL.
172 2019-11-06 Jason Merrill <jason@redhat.com>
174 C++20 NB CA378 - Remove constrained non-template functions.
175 * decl.c (grokfndecl): Reject constraints on non-templated function.
177 2019-11-06 Matthias Kretz <m.kretz@gsi.de>
179 * parser.c (cp_parser_operator): Parse operator?: as an
180 attempt to overload the conditional operator.
182 2019-11-05 Jason Merrill <jason@redhat.com>
184 Implement C++20 operator<=>.
185 * cp-tree.h (struct lang_decl_fn): Add maybe_deleted bitfield.
186 (DECL_MAYBE_DELETED): New.
187 (enum special_function_kind): Add sfk_comparison.
188 (LOOKUP_REWRITTEN, LOOKUP_REVERSED): New.
189 * call.c (struct z_candidate): Add rewritten and reversed methods.
190 (add_builtin_candidate): Handle SPACESHIP_EXPR.
191 (add_builtin_candidates): Likewise.
192 (add_candidates): Don't add a reversed candidate if the parms are
194 (add_operator_candidates): Split out from build_new_op_1. Handle
195 rewritten and reversed candidates.
196 (add_candidate): Swap conversions of reversed candidate.
197 (build_new_op_1): Swap them back. Build a second operation for
198 rewritten candidates.
199 (extract_call_expr): Handle rewritten calls.
200 (same_fn_or_template): New.
201 (joust): Handle rewritten and reversed candidates.
202 * class.c (add_implicitly_declared_members): Add implicit op==.
203 (classtype_has_op, classtype_has_defaulted_op): New.
204 * constexpr.c (cxx_eval_binary_expression): Handle SPACESHIP_EXPR.
205 (cxx_eval_constant_expression, potential_constant_expression_1):
207 * cp-gimplify.c (genericize_spaceship): New.
208 (cp_genericize_r): Use it.
209 * cp-objcp-common.c (cp_common_init_ts): Handle SPACESHIP_EXPR.
210 * decl.c (finish_function): Handle deleted function.
211 * decl2.c (grokfield): SET_DECL_FRIEND_CONTEXT on defaulted friend.
212 (mark_used): Check DECL_MAYBE_DELETED. Remove assumption that
213 defaulted functions are non-static members.
214 * error.c (dump_expr): Handle SPACESHIP_EXPR.
215 * method.c (type_has_trivial_fn): False for sfk_comparison.
216 (enum comp_cat_tag, struct comp_cat_info_t): New types.
217 (comp_cat_cache): New array variable.
218 (lookup_comparison_result, lookup_comparison_category)
219 (is_cat, cat_tag_for, spaceship_comp_cat)
220 (spaceship_type, genericize_spaceship)
221 (common_comparison_type, early_check_defaulted_comparison)
222 (comp_info, build_comparison_op): New.
223 (synthesize_method): Handle sfk_comparison. Handle deleted.
224 (get_defaulted_eh_spec, maybe_explain_implicit_delete)
225 (explain_implicit_non_constexpr, implicitly_declare_fn)
226 (defaulted_late_check, defaultable_fn_check): Handle sfk_comparison.
227 * name-lookup.c (get_std_name_hint): Add comparison categories.
228 * tree.c (special_function_p): Add sfk_comparison.
229 * typeck.c (cp_build_binary_op): Handle SPACESHIP_EXPR.
231 2019-11-05 Tim van Deurzen <tim@kompiler.org>
233 Add new tree code for the spaceship operator.
234 * cp-tree.def: Add new tree code.
235 * operators.def: New binary operator.
236 * parser.c: Add new token and tree code.
238 2019-09-15 Jason Merrill <jason@redhat.com>
240 * call.c (build_new_op_1): Don't apply any standard conversions to
241 the operands of a built-in operator. Don't suppress conversions in
243 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
245 2019-11-04 Jason Merrill <jason@redhat.com>
247 Use vec instead of raw array for built-in candidates.
248 * call.c (build_builtin_candidate): Take args in a vec.
249 (add_builtin_candidate, add_builtin_candidates): Likewise.
250 (build_conditional_expr_1, build_new_op_1): Adjust.
252 2019-11-04 Jason Merrill <jason@redhat.com>
254 * constexpr.c (explain_invalid_constexpr_fn): Show location of fn.
256 * pt.c (maybe_instantiate_noexcept): Only update clones if we
259 * typeck.c (contextual_conv_bool): New.
261 * name-lookup.c (lookup_qualified_name): Add wrapper overload taking
262 C string rather than identifier.
263 * parser.c (cp_parser_userdef_numeric_literal): Use it.
264 * rtti.c (emit_support_tinfos): Use it.
265 * cp-tree.h (ovl_op_identifier): Change to inline functions.
266 (build_x_binary_op): Add wrapper with fewer parms.
268 2019-11-05 Jason Merrill <jason@redhat.com>
270 * decl2.c (mark_used): Diagnose use of a function with unsatisfied
272 * typeck.c (cp_build_function_call_vec): Not here.
274 2019-11-05 Nathan Sidwell <nathan@acm.org>
277 * parser.c (cp_parser_error_1): Check EOF and UNKNOWN_LOCATION
278 when skipping over version control marker.
280 2019-11-05 Jakub Jelinek <jakub@redhat.com>
283 * constexpr.c (potential_constant_expression_1): Return true rather
284 than false for PREDICT_EXPR.
286 * decl.c (omp_declare_variant_finalize_one): Call
287 declare_simd_adjust_this not just on the context, but also on the
288 variant-id expression for methods. Don't call
289 cp_get_callee_fndecl_nofold, call cp_get_callee and only if it is
290 safe cp_get_fndecl_from_callee. Don't try to print as %qD
292 * pt.c (tsubst_attribute): Handle "omp declare variant base"
294 (tsubst_function_decl): Call omp_declare_variant_finalize
295 if there are any "omp declare variant base" attributes left.
297 2019-11-04 Kamlesh Kumar <kamleshbhalui@gmail.com>
299 PR c++/91979 - mangling nullptr expression
300 * mangle.c (write_template_arg_literal): Handle nullptr
303 2019-11-04 Jason Merrill <jason@redhat.com>
305 * typeck.c (check_return_expr): Avoid redundant error.
307 2019-11-02 Paolo Carlini <paolo.carlini@oracle.com>
309 * typeck.c (composite_pointer_type): Add a const op_location_t&
310 parameter and use it in diagnostics.
311 (composite_pointer_error): Likewise.
312 (composite_pointer_type_r): Add a const op_location_t&
313 parameter and forward it.
314 (cp_build_binary_op): Adjust calls.
315 (common_pointer_type): Likewise.
316 * call.c (add_builtin_candidate): Likewise.
317 (build_conditional_expr_1): Likewise.
318 * cp-tree.h (composite_pointer_type): Update declaration.
320 * typeck.c (cxx_sizeof_expr): Use cp_expr_loc_or_input_loc
322 (cxx_alignof_expr): Likewise.
323 (lvalue_or_else): Likewise.
325 2019-11-02 Jakub Jelinek <jakub@redhat.com>
327 * decl.c (omp_declare_variant_finalize_one): Use
328 omp_get_context_selector instead of c_omp_get_context_selector.
331 * parser.c (cp_parser_decl_specifier_seq): Don't parse attributes
332 if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR.
334 PR c++/88335 - Implement P1073R3: Immediate functions
335 * cp-tree.h (struct lang_decl_fn): Add immediate_fn_p bit.
336 (DECL_IMMEDIATE_FUNCTION_P, SET_DECL_IMMEDIATE_FUNCTION_P): Define.
337 (enum cp_decl_spec): Add ds_consteval.
338 (fold_non_dependent_expr): Add another tree argument defaulted to
340 * name-lookup.h (struct cp_binding_level): Add immediate_fn_ctx_p
342 * parser.c (cp_keyword_starts_decl_specifier_p): Adjust comments
343 for C++11 and C++20 specifiers. Handle RID_CONSTEVAL.
344 (CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR): Adjust comment.
345 (CP_PARSER_FLAGS_CONSTEVAL): New.
346 (cp_parser_skip_balanced_tokens): New forward declaration.
347 (cp_parser_lambda_declarator_opt): Handle ds_consteval. Set
348 current_binding_level->immediate_fn_ctx_p before parsing parameter
349 list if decl-specifier-seq contains consteval specifier.
350 (cp_parser_decl_specifier_seq): Handle RID_CONSTEVAL.
351 (cp_parser_explicit_instantiation): Diagnose explicit instantiation
352 with consteval specifier.
353 (cp_parser_init_declarator): For consteval or into flags
354 CP_PARSER_FLAGS_CONSTEVAL.
355 (cp_parser_direct_declarator): If CP_PARSER_FLAGS_CONSTEVAL, set
356 current_binding_level->immediate_fn_ctx_p in the sk_function_parms
358 (set_and_check_decl_spec_loc): Add consteval entry, formatting fix.
359 * call.c (build_addr_func): For direct calls to immediate functions
360 use build_address rather than decay_conversion.
361 (build_over_call): Evaluate immediate function invocations.
362 * error.c (dump_function_decl): Handle DECL_IMMEDIATE_FUNCTION_P.
363 * semantics.c (expand_or_defer_fn_1): Use tentative linkage and don't
364 call mark_needed for immediate functions.
365 * typeck.c (cxx_sizeof_or_alignof_expr): Likewise. Formatting fix.
366 (cp_build_addr_expr_1): Reject taking address of immediate function
367 outside of immediate function.
368 * decl.c (validate_constexpr_redeclaration): Diagnose consteval
369 vs. non-consteval or vice versa redeclaration. Use
370 SET_DECL_IMMEDIATE_FUNCTION_P if new_decl is immediate function.
371 (check_tag_decl): Use %qs with keyword string to simplify translation.
373 (start_decl): Adjust diagnostics for static or thread_local variables
374 in immediate functions.
375 (grokfndecl): Call sorry_at on virtual consteval. Use %qs with keyword
376 to string to simplify translation. Diagnose consteval main. Use
377 SET_DECL_IMMEDIATE_FUNCTION_P for consteval.
378 (grokdeclarator): Handle consteval. Use %qs with keyword strings to
379 simplify translation. Use separate ifs instead of chained else if
380 for invalid specifiers. For constinit clear constinit_p rather than
382 * constexpr.c (find_immediate_fndecl): New function.
383 (cxx_eval_outermost_constant_expr): Allow consteval calls returning
384 void. Diagnose returning address of immediate function from consteval
386 (fold_non_dependent_expr_template): Add OBJECT argument, pass it
387 through to cxx_eval_outermost_constant_expr.
388 (fold_non_dependent_expr): Add OBJECT argument, pass it through to
389 fold_non_dependent_expr_template.
390 (fold_non_dependent_init): Adjust fold_non_dependent_expr_template
392 * method.c (defaulted_late_check): Adjust diagnostics for consteval.
393 * lambda.c (maybe_add_lambda_conv_op): Copy over
394 DECL_DECLARED_CONSTEXPR_P and DECL_IMMEDIATE_FUNCTION_P bits from
395 callop to both artificial functions.
396 * init.c (build_value_init): Don't do further processing if
397 build_special_member_call returned a TREE_CONSTANT. Formatting fix.
399 PR c++/91369 - Implement P0784R7: constexpr new
400 * cp-tree.h (CALL_FROM_NEW_OR_DELETE_P): Define.
401 * init.c (build_new_1, build_vec_delete_1, build_delete): Set
402 CALL_FROM_NEW_OR_DELETE_P on the CALL_EXPR to allocator functions.
403 * constexpr.c (is_std_allocator_allocate): Only allow
404 global replaceable allocator functions if CALL_FROM_NEW_OR_DELETE_P
405 or in std::allocate<T>::{,de}allocate.
406 (potential_constant_expression_1): Likewise.
408 2019-11-01 Nathan Sidwell <nathan@acm.org>
410 * class.c (check_field_decls): Refactor.
412 2019-10-31 Jakub Jelinek <jakub@redhat.com>
415 * cp-tree.h (type_initializer_zero_p): Declare.
416 * decl.c (reshape_init_array_1): Formatting fix.
417 * tree.c (type_initializer_zero_p): New function. Moved from
418 ../tree.c, use next_initializable_field, formatting fix. Return
419 false for TYPE_NON_AGGREGATE_CLASS types.
421 2019-10-30 Jason Merrill <jason@redhat.com>
423 PR c++/92268 - hard error satisfying return-type-requirement
424 * constraint.cc (type_deducible_p): Check for substitution failure.
425 (diagnose_compound_requirement): Adjust diagnostic.
426 * pt.c (do_auto_deduction): Don't pass cargs to
427 constraints_satisfied_p.
429 2019-10-30 Jakub Jelinek <jakub@redhat.com>
431 PR c++/91369 - Implement P0784R7: constexpr new
432 * constexpr.c (cxx_replaceable_global_alloc_fn): Don't return true
434 (cxx_placement_new_fn, is_std_construct_at): New functions.
435 (cxx_eval_call_expression): Allow placement new in std::construct_at.
436 (potential_constant_expression_1): Likewise.
438 * typeck.c (decl_in_std_namespace_p): Return true also for decls
439 in inline namespaces inside of std namespace.
441 2019-10-30 Bernd Edlinger <bernd.edlinger@hotmail.de>
444 * name-lookup.c (check_local_shadow): Shadowing TYPE_DECLs
445 is always a -Wshadow=compatible-local warning, unless
448 2019-10-30 Jason Merrill <jason@redhat.com>
450 * cxx-pretty-print.c (get_fold_operator): Use OVL_OP_INFO.
452 2019-10-30 Marek Polacek <polacek@redhat.com>
454 PR c++/92134 - constinit malfunction in static data member.
455 * decl2.c (grokfield): Set LOOKUP_CONSTINIT.
457 2019-10-30 Jakub Jelinek <jakub@redhat.com>
459 * cp-tree.h (omp_declare_variant_finalize, build_local_temp): Declare.
460 * decl.c: Include omp-general.h.
461 (declare_simd_adjust_this): Add forward declaration.
462 (omp_declare_variant_finalize_one, omp_declare_variant_finalize): New
464 (cp_finish_decl, finish_function): Call omp_declare_variant_finalize.
465 * parser.c (cp_finish_omp_declare_variant): Adjust parsing of the
466 variant id-expression and propagate enough information to
467 omp_declare_variant_finalize_one in the attribute so that it can
469 * class.c (finish_struct): Call omp_declare_variant_finalize.
470 * tree.c (build_local_temp): No longer static, remove forward
473 2019-10-30 Paolo Carlini <paolo.carlini@oracle.com>
475 * typeck.c (cp_build_modify_expr): Prefer error + inform to
476 error + error in one place.
477 (get_delta_difference_1): Likewise.
478 (get_delta_difference): Likewise, in two places.
480 2019-10-29 Paolo Carlini <paolo.carlini@oracle.com>
482 * typeck.c (build_x_unary_op): Use the location_t argument in
485 2019-10-29 Marek Polacek <polacek@redhat.com>
487 PR c++/90998 - ICE with copy elision in init by ctor and -Wconversion.
488 * call.c (joust): Don't attempt to warn if ->second_conv is null.
490 2019-10-29 Jakub Jelinek <jakub@redhat.com>
493 * cp-gimplify.c (cp_gimplify_expr): If gimplify_to_rvalue changes the
494 function pointer type, re-add cast to the original one.
496 2019-10-29 Marek Polacek <polacek@redhat.com>
498 PR c++/91548 - fix detecting modifying const objects for ARRAY_REF.
499 * constexpr.c (cxx_eval_store_expression): Don't call
500 modifying_const_object_p for ARRAY_REF.
502 2019-10-29 Richard Sandiford <richard.sandiford@arm.com>
504 * cp-objcp-common.h (cxx_simulate_enum_decl): Declare.
505 (LANG_HOOKS_SIMULATE_ENUM_DECL): Define to the above.
506 * decl.c (cxx_simulate_enum_decl): New function.
508 2019-10-29 Richard Sandiford <richard.sandiford@arm.com>
510 * cp-tree.h (cxx_simulate_builtin_function_decl): Declare.
511 * decl.c (cxx_simulate_builtin_function_decl): New function.
512 * cp-objcp-common.h (LANG_HOOKS_SIMULATE_BUILTIN_FUNCTION_DECL):
515 2019-10-28 Martin Sebor <msebor@redhat.com>
518 * cp-objcp-common.c (names_builtin_p): Define new function.
520 2019-10-28 Nathan Sidwell <nathan@acm.org>
522 * parser.h (struct cp_token): Drop {ENUM,BOOL}_BITFIELD C-ism.
523 Add tree_check_p flag, use as nested union discriminator.
524 (struct cp_lexer): Add saved_type & saved_keyword fields.
525 * parser.c (eof_token): Delete.
526 (cp_lexer_new_main): Always init last_token to last token of
528 (cp_lexer_new_from_tokens): Overlay EOF token at end of range.
529 (cp_lexer_destroy): Restore token under the EOF.
530 (cp_lexer_previous_token_position): No check for eof_token here.
531 (cp_lexer_get_preprocessor_token): Clear tree_check_p.
532 (cp_lexer_peek_nth_token): Check CPP_EOF not eof_token.
533 (cp_lexer_consume_token): Assert not CPP_EOF, no check for
535 (cp_lexer_purge_token): Likewise.
536 (cp_lexer_purge_tokens_after): No check for EOF token.
537 (cp_parser_nested_name_specifier, cp_parser_decltype)
538 (cp_parser_template_id): Set tree_check_p.
540 2019-10-24 Jakub Jelinek <jakub@redhat.com>
542 * decl2.c (cplus_decl_attributes): Add "omp declare target block"
543 attribute in between declare target and end declare target
546 * call.c (convert_arg_to_ellipsis): Add missing space in string
549 2019-10-24 Marek Polacek <polacek@redhat.com>
551 * decl.c (reshape_init_r): Add missing space.
553 2019-10-24 Nathan Sidwell <nathan@acm.org>
555 * pt.c (reduce_template_parm_level): Attach the new TPI to the new
557 (convert_generic_types_to_packs): Pass the copied type to
558 reduce_templatE_parm_level.
560 2019-10-23 Nathan Sidwell <nathan@acm.org>
562 * cp-tree.c (CPTI_STD_IDENTIFIER): Delete.
563 (std_identifier): Delete.
564 (DECL_NAME_SPACE_STD_P): Compare against std_node.
565 * decl.c (initialize_predefined_identifiers): 'std' is not needed.
566 (cxx_init_decl_processing): Adjust creation of ::std. Use
567 {push,pop}_nested_namespace.
568 (cxx_builtin_function): Use {push,pop}_nested_namespace.
569 * except.c (init_exception_processing): Likewise.
570 * rtti.c (init_rtti_processing): Likewise.
572 2019-10-23 Jason Merrill <jason@redhat.com>
574 Implement P1286R2, Contra CWG1778
575 * method.c (defaulted_late_check): Don't check explicit
576 exception-specification on defaulted function.
577 (after_nsdmi_defaulted_late_checks): Remove.
578 * parser.h (struct cp_unparsed_functions_entry): Remove classes.
579 * parser.c (unparsed_classes): Remove.
580 (push_unparsed_function_queues, cp_parser_class_specifier_1):
583 2019-10-23 Jakub Jelinek <jakub@redhat.com>
585 * constexpr.c (cxx_eval_constant_expression) <case CLEANUP_STMT>:
586 Temporarily change input_location to CLEANUP_STMT location.
588 2019-10-22 Jakub Jelinek <jakub@redhat.com>
590 PR tree-optimization/85887
591 * decl.c (expand_static_init): Drop ECF_LEAF from __cxa_guard_acquire
592 and __cxa_guard_release.
594 2019-10-22 Marc Glisse <marc.glisse@inria.fr>
597 * constexpr.c (cxx_eval_builtin_function_call): Only set
598 force_folding_builtin_constant_p if manifestly_const_eval.
600 2019-10-22 Richard Sandiford <richard.sandiford@arm.com>
602 * cp-tree.h (STF_USER_VISIBLE): New constant.
603 (strip_typedefs, strip_typedefs_expr): Take a flags argument.
604 * tree.c (strip_typedefs, strip_typedefs_expr): Likewise,
605 updating mutual calls accordingly. When STF_USER_VISIBLE is true,
606 only look through typedefs if user_facing_original_type_p.
607 * error.c (dump_template_bindings, type_to_string): Pass
608 STF_USER_VISIBLE to strip_typedefs.
609 (dump_type): Likewise, unless pp_c_flag_gnu_v3 is set.
611 2019-10-21 Kamlesh Kumar <kamleshbhalui@gmail.com>
612 Jason Merrill <jason@redhat.com>
614 PR c++/83534 - typeinfo of noexcept function
615 * rtti.c (get_tinfo_decl_dynamic): Do not call
616 TYPE_MAIN_VARIANT for function.
617 (get_typeid): Likewise.
619 2019-10-21 Paolo Carlini <paolo.carlini@oracle.com>
621 * parser.c (cp_parser_class_head): Improve error recovery upon
622 extra qualification error.
624 2019-10-21 Jakub Jelinek <jakub@redhat.com>
627 * constexpr.c (cxx_eval_component_reference, cxx_eval_bit_field_ref):
628 Use STRIP_ANY_LOCATION_WRAPPER on CONSTRUCTOR elts.
630 2019-10-21 Marek Polacek <polacek@redhat.com>
632 PR c++/92062 - ODR-use ignored for static member of class template.
633 * pt.c (has_value_dependent_address): Strip location wrappers.
635 2019-10-21 Marek Polacek <polacek@redhat.com>
637 PR c++/92106 - ICE with structured bindings and -Wreturn-local-addr.
638 * typeck.c (maybe_warn_about_returning_address_of_local): Avoid
639 recursing on null initializer and return false instead.
641 2019-10-17 JeanHeyd Meneide <phdofthehouse@gmail.com>
643 Implement p1301 [[nodiscard("should have a reason")]] + p1771 DR
644 * tree.c (handle_nodiscard_attribute): Handle C++2a nodiscard
646 (std_attribute_table) Increase nodiscard argument handling
647 max_length from 0 to 1.
648 * parser.c (cp_parser_check_std_attribute): Add requirement
649 that nodiscard only be seen once in attribute-list.
650 (cp_parser_std_attribute): Check that empty parenthesis lists are
651 not specified for attributes that have max_length > 0 (e.g.
653 * cvt.c (maybe_warn_nodiscard): Add nodiscard message to
654 output, if applicable.
655 (convert_to_void): Allow constructors to be nodiscard-able (P1771).
657 2019-10-18 Nathan Sidwell <nathan@acm.org>
659 * cp-tree.h (struct lang_type): Remove was_anonymous.
660 (TYPE_WAS_UNNAMED): Implement by checking TYPE_DECL &
662 * decl.c (name_unnamed_type): Don't set TYPE_WAS_UNNAMED.
664 2019-10-17 Paolo Carlini <paolo.carlini@oracle.com>
666 * decl.c (grokfndecl): Remove redundant use of in_system_header_at.
667 (compute_array_index_type_loc): Likewise.
668 (grokdeclarator): Likewise.
669 * error.c (cp_printer): Likewise.
670 * lambda.c (add_default_capture): Likewise.
671 * parser.c (cp_parser_primary_expression): Likewise.
672 (cp_parser_selection_statement): Likewise.
673 (cp_parser_toplevel_declaration): Likewise.
674 (cp_parser_enumerator_list): Likewise.
675 (cp_parser_using_declaration): Likewise.
676 (cp_parser_member_declaration): Likewise.
677 (cp_parser_exception_specification_opt): Likewise.
678 (cp_parser_std_attribute_spec): Likewise.
679 * pt.c (do_decl_instantiation): Likewise.
680 (do_type_instantiation): Likewise.
681 * typeck.c (cp_build_unary_op): Likewise.
683 * decl.c (check_tag_decl): Pass to in_system_header_at the same
684 location used for the permerror.
685 (grokdeclarator): Likewise.
687 * decl.c (check_tag_decl): Use locations[ds_typedef] in error_at.
689 2019-10-17 Jason Merrill <jason@redhat.com>
691 * cp-gimplify.c (cp_gimplify_expr): Use get_initialized_tmp_var.
692 (gimplify_to_rvalue): Remove default NULL argument.
694 2019-10-17 Nathan Sidwell <nathan@acm.org>
696 * decl.c (builtin_function_1): Merge into ...
697 (cxx_builtin_function): ... here. Nadger the decl before maybe
698 copying it. Set the context.
699 (cxx_builtin_function_ext_scope): Push to top level, then call
700 cxx_builtin_function.
702 2019-10-16 Luis Machado <luis.machado@linaro.org>
704 * cp-gimplify.c: Fix reference to non-existing tree-gimple.c file.
706 2019-10-16 Jakub Jelinek <jakub@redhat.com>
708 * decl.c (cxx_maybe_build_cleanup): When clearing location of cleanup,
709 if cleanup is a nop, clear location of its operand too.
711 2019-10-15 Andrew Sutton <asutton@lock3software.com>
713 Finish moving constraint and logic functionality of out pt.c.
714 Reimplement and re-enable subsumption caching.
716 * config-lang.in (gtfiles): Add logic.cc.
717 * constraint.cc (atomic_constraints_identical_p): Add assertions.
718 (hash_atomic_constraint): Likewise.
719 (constraints_equivalent_p): New.
720 (inchash::add_constraint): New.
721 (iterative_hash_constraint): New.
722 (decl_constraints): Moved from pt.c.
723 (get_constraints): Likewise.
724 (set_constraints): Likewise.
725 (remove_constraints): Likewise.
726 * cp-tree.h (CONSTR_P): New.
727 (init_constraint_processing): Remove.
728 (constraints_equivalent_p, iterative_hash_constraint): Declare.
729 * decl.c (cxx_init_decl_processing): Don't initialize constraints.
730 * logic.cc (subsumption_entry): Moved from pt.c.
731 (subsumption_hasher): Likewise.
732 (subsumption_cache): Likewise.
733 (lookup_subsumption): Likewise.
734 (save_subsumption): Likewise.
735 (subsumes_constraints_nonnull): Use subsumption cache.
736 * pt.c: Move aforementioned declarations out of this file.
737 (init_constraint_processing): Remove.
739 2019-10-15 Andrew Sutton <asutton@lock3software.com>
741 * parser.c (cp_parser_constructor_declarator_p): Pass an empty
742 decl-specifier-seq to make sure we parse type constraints as part
745 2019-10-15 Nathan Sidwell <nathan@acm.org>
747 * class.c (build_clones): Break out of clone_function_decl. Just
749 (clone_function_decl): Call build_clones, then maybe add them to
752 * class.c (build_clone): Refactor to clarify recursiveness.
754 2019-10-14 Jason Merrill <jason@redhat.com>
756 PR c++/91930 - ICE with constrained inherited default ctor.
757 * name-lookup.c (do_class_using_decl): Set TYPE_HAS_USER_CONSTRUCTOR
758 for inherited constructor.
760 2019-10-14 Paolo Carlini <paolo.carlini@oracle.com>
762 * decl.c (check_tag_decl): Use DECL_SOURCE_LOCATION.
764 2019-10-14 Jakub Jelinek <jakub@redhat.com>
767 * semantics.c (handle_omp_array_sections_1): Temporarily disable
768 -fstrong-eval-order also for in_reduction and task_reduction clauses.
770 * parser.c (cp_parser_omp_all_clauses): Change bool NESTED_P argument
771 into int NESTED, if it is 2, diagnose missing commas in between
773 (cp_parser_omp_context_selector): Pass 2 as last argument to
774 cp_parser_omp_all_clauses.
776 2019-10-12 Jakub Jelinek <jakub@redhat.com>
778 * parser.c (cp_parser_omp_context_selector): Improve error recovery.
779 For simd properties, put them directly into TREE_VALUE.
780 (cp_finish_omp_declare_variant): Add "omp declare variant base"
781 attribute rather than "omp declare variant".
783 2019-10-11 Marek Polacek <polacek@redhat.com>
785 PR c++/92049 - extra error with -fchecking=2.
786 * pt.c (build_non_dependent_expr): Call fold_non_dependent_expr
789 2019-10-11 Paolo Carlini <paolo.carlini@oracle.com>
791 * typeck.c (cp_build_binary_op): Do not handle RROTATE_EXPR and
793 * constexpr.c (cxx_eval_constant_expression): Likewise.
794 (potential_constant_expression_1): Likewise.
795 * pt.c (tsubst_copy): Likewise.
797 2019-10-11 Jason Merrill <jason@redhat.com>
799 * decl2.c (mark_used): Don't clobber DECL_SOURCE_LOCATION on
800 explicitly defaulted functions.
801 * method.c (synthesize_method): Likewise.
803 2019-10-11 Jakub Jelinek <jakub@redhat.com>
806 * decl2.c (grok_array_decl): For -fstrong-eval-order, when array ref
807 operands have been swapped and at least one operand has side-effects,
808 revert the swapping before calling build_array_ref.
809 * typeck.c (cp_build_array_ref): For non-ARRAY_TYPE array ref with
810 side-effects on the index operand, if -fstrong-eval-order use
811 save_expr around the array operand.
812 (cp_build_binary_op): For shifts with side-effects in the second
813 operand, wrap first operand into SAVE_EXPR and evaluate it before
815 * semantics.c (handle_omp_array_sections_1): Temporarily disable
816 flag_strong_eval_order during OMP_CLAUSE_REDUCTION array section
818 * cp-gimplify.c (gimplify_to_rvalue): New function.
819 (cp_gimplify_expr): Use it.
821 2019-10-10 Marek Polacek <polacek@redhat.com>
823 * typeck.c (comp_ptr_ttypes_real): Change the return type to bool.
824 Use false instead of 0.
826 2019-10-10 Jakub Jelinek <jakub@redhat.com>
828 * parser.h (struct cp_omp_declare_simd_data): Add variant_p member.
829 * parser.c (cp_ensure_no_omp_declare_simd): Handle both declare simd
831 (cp_parser_oacc_all_clauses): Formatting fix.
832 (cp_parser_omp_all_clauses): Add NESTED_P argument, if true, terminate
833 processing on closing paren and don't skip to end of pragma line.
834 (cp_parser_omp_declare_simd): Add VARIANT_P argument. Handle also
836 (omp_construct_selectors, omp_device_selectors,
837 omp_implementation_selectors, omp_user_selectors): New variables.
838 (cp_parser_omp_context_selector,
839 cp_parser_omp_context_selector_specification,
840 cp_finish_omp_declare_variant): New functions.
841 (cp_parser_late_parsing_omp_declare_simd): Handle also declare variant.
842 (cp_parser_omp_declare): Handle declare variant.
844 2019-10-09 Jason Merrill <jason@redhat.com>
846 * cp-tree.h (template_info_decl_check): Check ENABLE_TREE_CHECKING.
848 2019-10-09 Marek Polacek <polacek@redhat.com>
850 PR c++/91364 - P0388R4: Permit conversions to arrays of unknown bound.
851 PR c++/69531 - DR 1307: Differently bounded array parameters.
852 PR c++/88128 - DR 330: Qual convs and pointers to arrays of pointers.
853 * call.c (build_array_conv): Build ck_identity at the beginning
855 (standard_conversion): Pass bounds_none to comp_ptr_ttypes_const.
856 (maybe_warn_array_conv): New.
857 (convert_like_real): Call it. Add an error message about converting
858 from arrays of unknown bounds.
859 (conv_get_original_expr): New.
860 (nelts_initialized_by_list_init): New.
861 (conv_binds_to_array_of_unknown_bound): New.
862 (compare_ics): Implement list-initialization ranking based on
863 array sizes, as specified in DR 1307 and P0388R.
864 * cp-tree.h (comp_ptr_ttypes_const): Adjust declaration.
865 (compare_bounds_t): New enum.
866 * typeck.c (comp_array_types): New bool and compare_bounds_t
867 parameters. Use them.
868 (structural_comptypes): Adjust the call to comp_array_types.
869 (similar_type_p): Handle ARRAY_TYPE.
870 (build_const_cast_1): Pass bounds_none to comp_ptr_ttypes_const.
871 (comp_ptr_ttypes_real): Don't check cv-quals of ARRAY_TYPEs. Use
872 comp_array_types to compare array types. Look through arrays as per
874 (comp_ptr_ttypes_const): Use comp_array_types to compare array types.
875 Look through arrays as per DR 330.
877 2019-10-09 Marek Polacek <polacek@redhat.com>
879 PR c++/92032 - DR 1601: Promotion of enum with fixed underlying type.
880 * call.c (standard_conversion): When converting an enumeration with
881 a fixed underlying type to the underlying type, give it the cr_promotion
883 (compare_ics): Implement a tiebreaker as per CWG 1601.
885 2019-10-08 Andrew Sutton <asutton@lock3software.com>
886 Jason Merrill <jason@redhat.com>
888 Update the concepts implementation to conform to the C++20
889 specification, improve compile times, and generally clean up
891 * call.c (build_new_function_call): Don't evaluate concepts here.
892 (constraint_failure): Don't record the template.
893 (print_z_candidate): Don't extract the template.
894 * class.c (add_method): When overloading, hide ineligible special
896 (check_methods): Set TYPE_HAS_COMPLEX_* here.
897 * constexpr.c (cxx_eval_constant_expression): Evaluate concepts.
898 (maybe_initialize_fundef_copies_table): Remove.
899 (get_fundef_copy): Use hash_map_safe_get_or_insert.
900 (clear_cv_and_fold_caches): Clear the satisfaction cache.
901 * constraint.cc (known_non_bool_p): New.
902 (parsing_constraint_expression_sentinel): Renamed from
903 expanding_constraint_sentinel.
904 (check_constraint_operands): New.
905 (check_constraint_atom): New.
906 (finish_constraint_binary_op): New.
907 (finish_constraint_or_expr): Likewise.
908 (finish_constraint_and_expr): Likewise.
909 (finish_constraint_primary_expr): Likewise.
910 (combine_constraint_expressions): New.
911 (finish_requires_expr): Add location parm.
912 (get_concept_definition): Return the initializer of concept definitions.
913 (get_template_head_requirements): New.
914 (get_trailing_function_requirements): New.
915 (deduce_constrained_parameter): Check if the identifier or template-id
916 is a concept definition.
917 (resolve_concept_definition_check): Removed.
918 (resolve_variable_concept_check): Removed.
919 (resolve_concept_check): New.
920 (resolve_constraint_check): Handle concept definitions.
921 converting arguments.
922 (function_concept_check_p): Removed.
923 (variable_concept_check_p): Removed.
924 (unpack_concept_check): New.
925 (get_concept_check_template): New.
926 (build_call_check): Moved and renamed to build_function_check.
927 (build_concept_check_arguments): make static.
928 (build_function_check): Always do overload resolution
929 in order to force conversion of template arguments (i.e., actually
930 check that the use of a concept is valid).
931 (build_standard_check): Renamed from build_real_concept_check.
932 (build_real_concept_check): Build checks for C++2a concepts by
933 (build_wildcard_concept_check): New.
934 (build_concept_check): Use build_real_concept_check. New overload.
935 (build_constraints): Save expressions, not normalized constraints.
936 (build_concept_id): New. Pass tf_warning_or_error.
937 (build_type_constraint): New.
938 (finish_type_constraints): New.
939 (associate_classtype_constraints): Also add constraints to union
940 types. Note the original declaration in errors. Don't return
941 error_mark_node in order to avoid an assertion later.
942 (push_down_pack_expansion): Remove.
943 (finish_shorthand_constraint): Make fold expressions, not naked
944 parameter packs. Always apply the constraint to each template argument.
945 (check_introduction_list): New. Fail if not enough
946 names are introduced.
947 (finish_template_introduction): Don't normalize constraints. Pass
948 tsubst flags. Check for insufficient introductions.
949 (placeholder_extract_concept_and_args): Handle the template-id case.
950 Unpack function concept checks correctly.
951 (tsubst_simple_requirement): Return errors if they occur. Don't
952 process as a template.
953 (tsubst_type_requirement): Likewise.
954 (type_deducible_p): New. Wrap the input expression in parens for the
955 purpose of deduction.
956 (expression_convertible_t): New.
957 (tsubst_compound_requirement): Use new deduction, conversion predicates.
958 (tsubst_nested_requirement): Return errors if they occur. Don't
959 process as a template. Instantiate and evaluate the nested requirement.
960 (tsubst_valid_expression_requirement): New.
961 (tsubst_simple_requirement): Use tsubst_valid_expression_requirement.
962 (tsubst_compound_requirement): Use tsubst_valid_expression_requirement.
963 (check_constaint_variables): New.
964 (tsubst_constraint_variables): Check that type substitutions are valid.
965 (tsubst_requires_expr): Likewise. Produce new requires-exprs during
966 template substitution. Copy the previous local specialization stack,
967 so references to non-local parameters can be found. Use cp_unevaluated.
968 (tsubst_constraint): New. Don't evaluate concept checks.
970 (norm_info): New. Used to build a normalization tree for concept check
972 (debug_parameter_mapping): New.
973 (debug_argument_list): New.
974 (expand_concept): Removed.
975 (normalize_logical_operation): Pass subst_info through call.
976 (normalize_pack_expansion): Remove.
977 (normalize_simple_requirement): Removed
978 (normalize_type_requirement): Removed
979 (normalize_compound_requirement): Removed
980 (normalize_nested_requirement): Removed
981 (normalize_requirement): Removed
982 (normalize_requirements): Removed
983 (normalize_requires_expression): Removed
984 (normalize_variable_concept_check): Removed.
985 (normalize_function_concept_check): Removed.
986 (normalize_concept_check): Merged all normalize_*_check here.
987 Substitute through written template arguments before normalizing the
988 definition. Only substitute the innermost template arguments.
989 (check_for_logical_overloads): Delete.
990 (map_arguments): New. Associate template parameters with arguments.
991 (build_parameter_mapping): New. Extract used parameters.
992 (normalize_expression): Rewrite.
993 (normalize_conjunction): Removed
994 (normalize_disjunction): Removed
995 (normalize_predicate_constraint): Removed
996 (normalize_parameterized_constraint): Removed
997 (normalized_map): New variable.
998 (get_normalized_constraints): New entry point for normalization.
1000 (get_normalized_constraints_from_info): New.
1001 (get_normalized_constraints_from_decl): New. Turn on template processing
1002 prior to normalization. Handle inheriting ctors. Build the
1003 normalization arguments from the full set of template parameters of the
1004 most general template. This guarantees that we have no concrete arguments
1005 in the parameter mapping (e.g., from template members of class
1006 templates). Cache normalizations.
1007 (normalize_concept_definition): New. Cache normalizations.
1008 (normalize_template_requirements): New.
1009 (normalize_nontemplate_requirements): New.
1010 (normalize_constraint_expression): New.
1011 (tsubst_parameter_mapping): New.
1012 (get_mapped_args): New.
1013 (parameter_mapping_equivalent_p): New. Use template_args_equal.
1014 (atomic_constraints_identical_p): New.
1015 (hash_atomic_constraint): New.
1016 (satisfying_constraint_p): New. Guard against recursive evaluation of
1017 constraints during satisfaction.
1018 (satisfy_conjunction): New.
1019 (satisfy_disjunction): New.
1020 (sat_entry): New class for hashing satisfaction results.
1021 (sat_hasher): New hash traits.
1023 (get_satisfaction): New. Returns cached satisfaction result.
1024 (save_satisfaction): New. Caches a satisfaction result.
1025 (clear_satisfaction_cache): New.
1026 (satisfaction_cache): New. Helps manage satisfaction cache requests.
1027 (decl_satisfied_cache): New.
1028 (satisfy_atom): New.
1029 (satisfy_constraint_r): New.
1030 (satisfy_constraint): Use new satisfaction algorithm.
1031 (evaluate_concept_check): New.
1032 (evaluate_concept): Removed.
1033 (evaluate_function_concept): Removed.
1034 (evaluate_variable_concept): Removed.
1035 (satisfy_constraint_expression): New.
1036 (constraint_expression_satisfied_p): New.
1037 (constraints_satisfied_p): Use strip_inheriting_ctors. Use
1038 push_/pop_access_scope.
1039 (more_constrained): Normalize before calling out to subsumption. Allow
1040 classes as arguments.
1041 (strictly_subsumes): Allow non-templates as arguments. Accept a new
1043 (weakly_subsumes): New.
1044 (at_least_as_constrained): Removed.
1045 (diagnose_other_expression): Removed.
1046 (diagnose_predicate_constraint): Removed.
1047 (diagnose_pack_expansion): Removed.
1048 (diagnose_check_constraint): Removed.
1049 (diagnose_logical_constraint): Removed.
1050 (diagnose_expression_constraint): Removed.
1051 (diagnose_type_constraint): Removed.
1052 (diagnose_implicit_conversion_constraint): Removed.
1053 (diagnose_argument_deduction_constraint): Removed.
1054 (diagnose_exception_constraint): Removed.
1055 (diagnose_parameterized_constraint): Removed.
1056 (diagnose_argument_deduction_constraint): Removed.
1057 (diagnose_argument_deduction_constraint): Removed.
1058 (diagnose_argument_deduction_constraint): Removed.
1059 (diagnose_trait_expr): New.
1060 (diagnose_requires_expr): New.
1061 (diagnose_atomic_constraint): New.
1062 (diagnose_valid_expression) Stop wrongly diagnosing valid expressions.
1063 Don't substitute as if in template decls. This causes substitution
1064 to generate expressions that aren't suitable for use with the noexcept
1066 (diagnose_valid_type) Likewise.
1067 (diagnose_compound_requirement) Actually emit diagnostics for
1068 the causes of errors.Call force_paren_expr_uneval.
1069 (diagnose_declaration_constraints): Turn on template processing to
1070 suppress certain analyses.
1071 * cp-objcp-common.c (cp_common_init_ts): Make concepts typed.
1072 (cp_get_debug_type): Use hash_map_safe_*.
1073 * cp-tree.h: New function declarations for semantic actions, other
1074 facilities. Remove declaration no longer used or needed. Remove
1075 unused _CONSTR macros.
1076 (LANG_DECL_HAS_MIN): Add CONCEPT_DECL.
1077 (template_info_decl_check): Factor macro check into an inline function.
1078 (DECL_TEMPLATE_INFO): Use new check facility.
1079 (finish_concept_definition): New. Don't invalid concept declarations
1080 with invalid initializers.
1081 (find_template_parameters): New.
1082 (concept_definition_p): New.
1083 (concept_check_p): New.
1084 (variable_concept_check_p): New.
1085 (force_paren_expr_uneval): New.
1086 (ovl_iterator::using_p): A USING_DECL by itself was also
1087 introduced by a using-declaration.
1088 (struct tree_template_info): Use tree_base instead of
1089 tree_common. Add tmpl and args fields.
1090 (TI_TEMPLATE, TI_ARGS): Adjust.
1091 (DECLTYPE_FOR_INIT_CAPTURE): Remove.
1092 (CONSTR_CHECK, CONSTR_INFO, CONSTR_EXPR, CONSTR_CONTEXT): New.
1093 (ATOMIC_CONSTR_MAP, TRAIT_EXPR_LOCATION): New.
1094 (struct tree_trait_expr): Add locus field.
1095 (enum tsubst_flags): Add tf_norm as a hint to generate normalization
1096 context when diagnosing constraint failure.
1097 * cp-tree.def: Remove unused _CONSTR nodes and rename PRED_CONSTR
1099 (CONCEPT_DECL): New.
1100 * cxx-pretty-print.c: Remove constraint printing code.
1101 (pp_cxx_concept_definition): New.
1102 (pp_cxx_template_declaration): Print concept definitions.
1103 (pp_cxx_check_constraint): Update printing for concept definitions.
1104 (pp_cxx_nested_name_specifier): Fix a weird
1105 case where we're printing '::::' for concepts.
1106 (simple_type_specifier): Print requirements for placeholder types.
1107 (pp_cxx_constrained_type_spec): Print the associated requirements of
1109 (pp_cxx_compound_requirement): Add space before the '->'.
1110 (pp_cxx_parameter_mapping): Print the parameter mapping.
1111 (pp_cxx_atomic_constraint): Use the function above.
1112 * decl.c (redeclaration_error_message): New error for concepts.
1113 (grokdeclarator): Check for and disallow decltype(auto) in parameter
1115 (grokfndecl): Don't normalize constraints. Add check for constraints
1117 (grokvardecl): Don't normalize constraints.
1118 (grok_special_member_properties): Don't set TYPE_HAS_COMPLEX_*.
1119 (function_requirements_equivalent_p): New. Compare trailing
1120 requires clauses. Compare combined constraints in pre-C++20 mode.
1121 (decls_match): Compare trailing requires clauses. Compare template
1122 heads for function templates. Remove old constraint comparison.
1123 Simplify comparison of functions, function templates.
1124 (duplicate_function_template_decls): New. Refactor a nasty if
1125 condition into a single predicate.
1126 (require_deduced_type): Don't complain if we already complained about
1128 (finish_function): Perform auto deduction to ensure that constraints
1129 are checked even when functions contain no return statements. Only do
1130 auto deduction if we haven't previously seen any return statements.
1131 This prevents multiple diagnostics of the same error.
1132 (store_decomp_type): Remove.
1133 (cp_finish_decomp): Use hash_map_safe_put.
1134 * error.c: Remove constraint printing code.
1135 (dump_decl): Dump concept definitions. Handle wildcard declarations.
1136 (dump_template_decl): Likewise.
1137 (dump_type): Print associated requirements for placeholder
1139 (rebuild_concept_check): New.
1140 (maybe_print_single_constraint_context): New.
1141 (maybe_print_constraint_context): Recursively print nested contexts.
1142 * init.c (get_nsdmi): Use hash_map_safe_*.
1143 * lambda.c (maybe_add_lambda_conv_op): Bail if deduction failed.
1144 (add_capture): Copy parameter packs from init.
1145 (lambda_capture_field_type): Always use auto for init-capture.
1146 * logic.cc: Completely rewrite.
1147 (constraint_hash): New.
1148 (clause/ctor): Save atoms in the hash table.
1149 (replace): Save atoms during replacement.
1150 (insert): Save atoms during insertion.
1151 (contains): Only search the hash table for containment.
1152 (clause): Keep a hash of atomic constraints.
1153 (clause::clause): Explicitly copy the hash table when copying.
1154 (disjunction_p, conjunction_p, atomic_p, dnf_size, cnf_size): New.
1155 (diagnose_constraint_size): New.
1156 (subsumes_constraints_nonnull): Compare the sizes of normalized formula
1157 to determine the cheapest decomposition.
1158 * name-lookup.c (diagnose_name_conflict): Diagnose name issues with
1160 (matching_fn_p): Check constraints.
1161 (push_class_level_binding_1): Move overloaded functions case down,
1162 accept FUNCTION_DECL as target_decl.
1163 * parser.c (enum required_token): New required token for auto.
1164 (make_location): Add overload taking lexer as last parm.
1165 (cp_parser_required_error): Diagnose missing auto.
1166 (cp_parser_diagnose_ungrouped_constraint_plain): New.
1167 (cp_parser_diagnose_ungrouped_constraint_plain): New.
1168 (cp_parser_constraint_primary_expression): New. Tentatively parse the
1169 primary expression. If that fails tentatively parse a lower
1170 precedence expression in order to diagnose the error.
1171 (cp_parser_check_non_logical_constraint): New. Performs a trial
1172 parse of the right-hand-side of non-logical operators in order to
1173 generate good diagnostics.
1174 (cp_parser_constraint_logical_and_expression): New.
1175 (cp_parser_constraint_logical_or_expression): New.
1176 (cp_parser_requires_clause_expression): New.
1177 (cp_parser_requires_clause): Renamed to cp_parser_constraint_expression.
1178 (cp_parser_requires_clause_opt): Parse the requires-clause differently
1179 in -fconcepts and -std=c++2a modes.
1180 (cp_parser_requirement_list): Rename to cp_parser_requirement_seq.
1181 Rewrite so that semicolons are parsed
1182 along with requirements, not the sequence.
1183 (cp_parser_simple_requirement): Expect a semicolon at end.
1184 (cp_parser_compound_requirement): Expect a semicolon at end. Only
1185 allow trailing-return-type with -fconcepts-ts.
1186 (cp_parser_nested_requirement): Expect a semicolon at end. Parse
1187 constraint-expressions.
1188 (cp_parser_concept_definition): New. Don't fail parsing the concept
1189 definition if the initializer is ill-formed. Don't declare the concept
1190 before parsing the initializer.
1191 (cp_parser_constraint_expression): Declare earlier.
1192 (cp_parser_type_requirement): Current scope is not valid.
1193 (cp_parser_requires_expression): Commit to the tentative parse.
1194 (cp_parser_decl_specifier_seq): Warn when concept appears to be used
1195 as a decl-specifier.
1196 (cp_parser_template_declaration_after_parameters): Parse concept
1198 (cp_parser_template_id): Don't try to resolve a concept template-id yet.
1199 (cp_parser_template_id_expr): Resolve it as a concept check.
1200 (cp_parser_decl_specifier_seq): Warn on 'concept bool'.
1201 (cp_parser_type_parameter): Combine expressions not
1203 (cp_parser_explicit_template_declaration): Combine expressions not
1205 (cp_parser_maybe_concept_name): Removed.
1206 (cp_parser_simple_type_specifier): Handle an error condition of
1207 a bad constrained type specifier. Expect auto or decltype after
1208 a concept name. Also handle the case where we have a template-id
1210 (cp_parser_template_introduction): Diagnose errors on invalid
1211 introductions. Give up if it doesn't start with a concept name.
1212 Pedwarn if not -fconcepts-ts.
1213 (synthesize_implicit_template_parm): Don't do consistent binding.
1214 Use a new flag for constrained parameters. Combine expressions,
1215 not constraints. Fail if we get a placeholder in block scope.
1216 Placeholders that do not constrain types are not allowed in parameter
1217 declarations, so don't handle them.
1218 (cp_parser_placeholder_type_specifier): New. Implement parsing of
1219 placeholder type specifiers following a concept name or partial
1220 concept check. Disallow decltype(auto) parameters.
1221 (cp_parser_nested_name_specifier_opt): If the token is already
1222 CPP_NESTED_NAME_SPECIFIER, leave it alone.
1223 (cp_parser_id_expression, cp_parser_unqualified_id): Call
1224 cp_parser_template_id_expr.
1225 (cp_parser_placeholder_type_specifier): Add tentative parm. Don't
1226 expect a WILDCARD_DECL.
1227 (cp_parser_trait_expr): Pass trait_loc down.
1228 (cp_parser_postfix_expression): Do set location of dependent member
1230 * pt.c (finish_concept_definition): New.
1231 (push_template_decl_real): Handle concept definitions.
1232 (start_concept_definition): Let push_template_decl_real handle the
1233 creation of the template.
1234 (get_constraints): Return null if the table hasn't been initialized.
1235 (tsubst_copy_and_build): Build template-id expressions for concept
1237 [TRAIT_EXPR]: Pass trait_loc down.
1238 (lookup_template_class_1): Add the template name to the constraint
1240 (lookup_and_finish_template_variable): Build concept checks
1241 with the correct arguments.
1242 (tsubst_function_decl): Don't substitute through constraints.
1243 Always associate constraints with functions.
1244 (template_parm_level_and_index): Make non-static.
1245 (for_each_template_parm_r): Handle requires expressions.
1246 (keep_template_parm): New.
1247 (find_template_parameters): New.
1248 (more_specialized_fn): Change how winners and losers are chosen.
1249 (make_constrained_auto): Don't normalize constraints.
1250 (template_parameters_equivalent_p): New. Compare template
1251 parameters. Add a comparison for implicitly vs. explicitly declared
1253 (template_parameter_lists_equivalent_p): New. Compare template
1255 (template_requirements_equivalent_p): New.
1256 (template_heads_equivalent_p): New. Compare template heads.
1257 (template_parameter_constraints_equivalent_p): New.
1258 (is_compatible_template_arg): Use weakly_subsumes.
1259 (maybe_new_partial_specialization): Use new constraint comparison
1260 for finding specializations.
1261 (process_partial_specialization): Pass main template as argument.
1262 (more_specialized_partial_spec): Don't immediately return when
1264 (make_constrained_auto): Handle concept definitions.
1265 (do_auto_deduction): Update auto deduction for new concept model.
1266 Extract the function concept correctly; rename constr to check to
1267 reflect the kind of node.
1268 (tsubst): Adjust wildcard argument during substitution.
1269 [DECLTYPE_TYPE]: Remove init-capture handling.
1270 (tsubst_copy_and_build): Build concept checks, not template ids.
1271 Defer checks of function concepts. Handle concepts before variable
1272 templates. Handle calls to function concepts explicitly.
1273 (coerce_template_parms): Use concept_definition_p. Handle a deduction
1274 error where a potentially empty pack can be supplied after the last
1275 parameter of a concept.
1276 (finish_template_variable): Don't process concepts here.
1277 (instantiation_dependent_r): Use concept_check_p.
1278 (tsubst_template_args): Make non-static.
1279 (make_constrained_placeholder_type): New. Refactored from
1280 make_constrained_auto.
1281 (make_constrained_auto) Use make_constrained_placeholder_type.
1282 (make_constrained_decltype_auto) New.
1283 (tsubst_function_parms): New.
1284 (value_dependent_expression_p) [TEMPLATE_ID_EXPR]: Use
1285 concept_definition_p.
1286 (push_access_scope, pop_access_scope): No longer static.
1287 (tsubst_template_parm): Substitute TEMPLATE_PARM_CONSTRAINTS.
1288 (tsubst_friend_function): Use tsubst_constraint. Use generic_targs_for.
1289 (get_underlying_template) Use generic_targs_for.
1290 (uses_parameter_packs): Return tree.
1291 (gen_elem_of_pack_expansion_instantiation): Don't push
1292 local_specialization_stack.
1293 (prepend_one_capture): New.
1294 (tsubst_lambda_expr): Use prepend_one_capture. Don't touch
1295 local_specializations.
1296 (template_parms_level_to_args): No longer static.
1297 (add_outermost_template_args): Likewise.
1298 (find_template_parameter_info): New. Provide context for finding
1299 template parameters.
1300 (keep_template_parm): Don't keep parameters declared at depth levels
1301 greater than those of the template parameters of the source declaration.
1302 Don't propagate cv-qualified types. Return 0, so we find all template
1303 parameters, not the just first.
1304 (any_template_parm_r): New. Handle cases that are mishandled by
1305 for_each_template_parm_r.
1306 (generic_targs_for): Factor out of coerce_template_args_for_ttp.
1307 (tsubst_argument_pack): Factor out of tsubst_template_args.
1308 (constraint_sat_entry): Removed.
1309 (constraint_sat_hasher): Removed.
1310 (concept_spec_entry): Removed.
1311 (concept_spec_hasher): Removed.
1312 (constraint_memos): Removed.
1313 (concept_memos): Removed.
1314 (lookup_constraint_satisfaction): Removed.
1315 (memoize_constraint_satisfaction): Removed.
1316 (lookup_concept_satisfaction): Removed.
1317 (memoize_concept_satisfaction): Removed.
1318 (concept_expansions): Removed.
1319 (get_concept_expansion): Removed.
1320 (save_concept_expansion): Removed.
1321 (init_constraint_processing): Remove initialization of non-existing
1323 (find_template_requirement): New. Search for the sub-requirement
1324 within the associated constraints.
1325 (convert_generic_types_to_packs): Also transform the associated
1326 constraint and update the current template requirements.
1327 (store_defaulted_ttp, lookup_defaulted_ttp): Remove.
1328 (add_defaults_to_ttp): Use hash_map_safe_*.
1329 * semantics.c (finish_call_expr): Diagnose calls to concepts.
1330 Handle concept checks explicitly.
1331 (finish_id_expression): Evaluate variable concepts as part of
1332 id-expression processing. Don't treat variable concepts as variables,
1333 and don't process function concepts as plain id-expressions.
1334 (force_paren_expr): Add even_uneval parm.
1335 (finish_trait_expr): Add location parm.
1336 * tree.c (special_memfn_p): New.
1337 (cp_expr_location): Handle TRAIT_EXPR.
1338 * typeck.c (check_return_expr): Actually use the diagnostic kind
1339 when performing return-type deduction.
1340 * typeck2.c (build_functional_cast): Don't rely on the location of
1343 2019-10-09 Paolo Carlini <paolo.carlini@oracle.com>
1345 * decl.c (grok_ctor_properties): Use DECL_SOURCE_LOCATION.
1346 * typeck.c (cp_build_binary_op): Use the op_location_t argument
1347 in many error messages.
1349 2019-10-08 Martin Sebor <msebor@redhat.com>
1352 * call.c (maybe_warn_class_memaccess): Handle arrays.
1354 2019-10-07 Paolo Carlini <paolo.carlini@oracle.com>
1356 * call.c (resolve_args): Use cp_expr_loc_or_input_loc in one place.
1357 * decl.c (grokdeclarator): Use id_loc in one place.
1358 * decl2.c (build_anon_union_vars): Use DECL_SOURCE_LOCATION.
1359 * parser.c (cp_parser_delete_expression): Fix the location of the
1360 returned expression.
1361 (cp_parser_throw_expression): Likewise.
1362 * pt.c (determine_specialization): Use DECL_SOURCE_LOCATION.
1364 2019-10-05 Jakub Jelinek <jakub@redhat.com>
1366 PR c++/91369 - Implement P0784R7: constexpr new
1367 * cp-tree.h (enum cp_tree_index): Add CPTI_HEAP_UNINIT_IDENTIFIER,
1368 CPTI_HEAP_IDENTIFIER and CPTI_HEAP_DELETED_IDENTIFIER.
1369 (heap_uninit_identifier, heap_identifier, heap_deleted_identifier):
1371 (type_has_constexpr_destructor, build_new_constexpr_heap_type,
1372 cxx_constant_dtor): Declare.
1373 * class.c (type_maybe_constexpr_default_constructor): Make static.
1374 (type_maybe_constexpr_destructor, type_has_constexpr_destructor): New
1376 (finalize_literal_type_property): For c++2a, don't clear
1377 CLASSTYPE_LITERAL_P for types without trivial destructors unless they
1378 have non-constexpr destructors.
1379 (explain_non_literal_class): For c++2a, complain about non-constexpr
1380 destructors rather than about non-trivial destructors.
1381 * constexpr.c: Include stor-layout.h.
1382 (struct constexpr_global_ctx): New type.
1383 (struct constexpr_ctx): Add global field, remove values and
1384 constexpr_ops_count.
1385 (cxx_replaceable_global_alloc_fn): New inline function.
1386 (cxx_eval_call_expression): For c++2a allow calls to replaceable
1387 global allocation functions, for new return address of a heap uninit
1388 var, for delete record its deletion. Change ctx->values->{get,put} to
1389 ctx->global->values.{get,put}.
1390 (non_const_var_error): Add auto_diagnostic_group sentinel. Emit
1391 special diagnostics for heap variables.
1392 (cxx_eval_store_expression): Change ctx->values->{get,put} to
1393 ctx->global->values.{get,put}.
1394 (cxx_eval_loop_expr): Initialize jump_target if NULL. Change
1395 new_ctx.values->remove to ctx->global->values.remove.
1396 (cxx_eval_constant_expression): Change *ctx->constexpr_ops_count
1397 to ctx->global->constexpr_ops_count. Change ctx->values->{get,put} to
1398 ctx->global->values.{get,put}.
1399 <case NOP_EXPR>: Formatting fix. On cast of replaceable global
1400 allocation function to some pointer type, adjust the type of
1401 the heap variable and change name from heap_uninit_identifier
1403 (find_heap_var_refs): New function.
1404 (cxx_eval_outermost_constant_expr): Add constexpr_dtor argument,
1405 handle evaluation of constexpr dtors and add tracking of heap
1406 variables. Use tf_no_cleanup for get_target_expr_with_sfinae.
1407 (cxx_constant_value): Adjust cxx_eval_outermost_constant_expr caller.
1408 (cxx_constant_dtor): New function.
1409 (maybe_constant_value, fold_non_dependent_expr_template,
1410 maybe_constant_init_1): Adjust cxx_eval_outermost_constant_expr
1412 (potential_constant_expression_1): Ignore clobbers. Allow
1413 COND_EXPR_IS_VEC_DELETE for c++2a.
1414 * decl.c (initialize_predefined_identifiers): Add heap identifiers.
1415 (decl_maybe_constant_destruction): New function.
1416 (cp_finish_decl): Don't clear TREE_READONLY for constexpr variables
1417 with non-trivial, but constexpr destructors.
1418 (register_dtor_fn): For constexpr variables with constexpr non-trivial
1419 destructors call cxx_maybe_build_cleanup instead of adding destructor
1421 (expand_static_init): For constexpr variables with constexpr
1422 non-trivial destructors call cxx_maybe_build_cleanup.
1423 (grokdeclarator): Allow constexpr destructors for c++2a. Formatting
1425 (cxx_maybe_build_cleanup): For constexpr variables with constexpr
1426 non-trivial destructors call cxx_constant_dtor instead of adding
1427 destructor calls at runtime.
1428 * init.c: Include stor-layout.h.
1429 (build_new_constexpr_heap_type, maybe_wrap_new_for_constexpr): New
1431 (build_new_1): For c++2a and new[], add cast around the alloc call
1432 to help constexpr evaluation figure out the type of the heap storage.
1433 (build_vec_delete_1): Set DECL_INITIAL of tbase and emit a DECL_EXPR
1434 for it instead of initializing an uninitialized variable.
1435 * method.c: Include intl.h.
1436 (SFK_CTOR_P, SFK_DTOR_P, SFK_ASSIGN_P, SFK_COPY_P, SFK_MOVE_P): Move
1437 definitions earlier.
1438 (process_subob_fn): Add sfk argument, adjust non-constexpr call
1439 diagnostics based on it.
1440 (walk_field_subobs): Formatting fixes. Adjust process_subob_fn caller.
1441 (synthesized_method_base_walk): Likewise.
1442 (synthesized_method_walk): Set *constexpr_p to true for dtors in c++2a.
1443 Fix up DR number in comment.
1444 (implicitly_declare_fn): Formatting fix.
1445 * typeck2.c (store_init_value): Don't call cp_fully_fold_init on
1446 initializers of automatic non-constexpr variables in constexpr
1449 2019-10-04 Jakub Jelinek <jakub@redhat.com>
1452 * constexpr.c (cxx_fold_indirect_ref_1): New function.
1453 (cxx_fold_indirect_ref): Use it.
1456 * cp-gimplify.c (cp_gimplify_expr) <case CALL_EXPR>: For
1457 -fstrong-eval-order ensure CALL_EXPR_FN side-effects are evaluated
1458 before any arguments. Additionally, ensure CALL_EXPR_FN that isn't
1459 invariant nor OBJ_TYPE_REF nor SSA_NAME is forced into a temporary.
1461 2019-10-03 Paolo Carlini <paolo.carlini@oracle.com>
1463 * init.c (build_new): Use cp_expr_loc_or_input_loc in two places.
1464 * name-lookup.c (do_pushdecl): Use DECL_SOURCE_LOCATION.
1465 (push_class_level_binding_1): Likewise.
1466 (set_decl_namespace): Likewise.
1468 2019-10-03 Jakub Jelinek <jakub@redhat.com>
1470 * constexpr.c (cxx_eval_constant_expression) <case CLEANUP_STMT>: If
1471 not skipping upon entry to body, run cleanup with the same *jump_target
1472 as it started to run the cleanup even if the body returns, breaks or
1474 (potential_constant_expression_1): Allow CLEANUP_STMT.
1476 * constexpr.c (cxx_eval_store_expression): Formatting fix. Handle
1477 const_object_being_modified with array type.
1479 2019-10-02 Jason Merrill <jason@redhat.com>
1481 * typeck2.c (store_init_value): Only clear_cv_and_fold_caches if the
1484 2019-09-30 Jason Merrill <jason@redhat.com>
1486 Use hash_map_safe_* functions.
1487 * constexpr.c (maybe_initialize_fundef_copies_table): Remove.
1488 (get_fundef_copy): Use hash_map_safe_get_or_insert.
1489 * cp-objcp-common.c (cp_get_debug_type): Use hash_map_safe_*.
1490 * decl.c (store_decomp_type): Remove.
1491 (cp_finish_decomp): Use hash_map_safe_put.
1492 * init.c (get_nsdmi): Use hash_map_safe_*.
1493 * pt.c (store_defaulted_ttp, lookup_defaulted_ttp): Remove.
1494 (add_defaults_to_ttp): Use hash_map_safe_*.
1496 2019-10-02 Richard Biener <rguenther@suse.de>
1499 * decl.c (build_ptrmemfunc_type): Mark pointer-to-member
1500 fat pointer structure members as DECL_NONADDRESSABLE_P.
1502 2019-09-28 Marek Polacek <polacek@redhat.com>
1504 PR c++/91889 - follow-up fix for DR 2352.
1505 * call.c (involves_qualification_conversion_p): New function.
1506 (direct_reference_binding): Build a ck_qual if the conversion
1507 would involve a qualification conversion.
1508 (convert_like_real): Strip the conversion created by the ck_qual
1509 in direct_reference_binding.
1511 PR c++/91921 - stray warning with -Woverloaded-virtual.
1512 * class.c (warn_hidden): Only emit the second part of
1513 -Woverloaded-virtual if the first part was issued. Use inform instead
1516 PR c++/91923 - failure-to-SFINAE with class type NTTP in C++17.
1517 * pt.c (invalid_nontype_parm_type_p): Only emit errors when
1520 2019-09-27 Jakub Jelinek <jakub@redhat.com>
1523 * parser.c (cp_parser_omp_var_list_no_open): Parse predefined
1525 * semantics.c (finish_omp_clauses): Allow predefined variables in
1526 shared and firstprivate clauses, even when they are predetermined
1528 * cp-gimplify.c (cxx_omp_predetermined_sharing_1): Return
1529 OMP_CLAUSE_DEFAULT_SHARED for predefined variables.
1531 2019-09-27 Jason Merrill <jason@redhat.com>
1533 * constexpr.c (cxx_fold_indirect_ref): Use similar_type_p.
1534 (cxx_eval_indirect_ref): Likewise. Improve error location.
1536 * cp-tree.h (class iloc_sentinel): New.
1537 * decl.c (grokdeclarator, finish_enum_value_list): Use it.
1538 * mangle.c (mangle_decl_string): Use it.
1539 * pt.c (perform_typedefs_access_check): Use it.
1541 2019-09-27 Richard Sandiford <richard.sandiford@arm.com>
1543 * cp-tree.h (build_cxx_call): Take the original function decl
1544 as an optional final parameter.
1545 (cp_build_function_call_vec): Likewise.
1546 * call.c (build_cxx_call): Likewise. Pass all built-in calls to
1547 check_builtin_function_arguments.
1548 * typeck.c (build_function_call_vec): Take the original function
1549 decl as an optional final parameter and pass it to
1550 cp_build_function_call_vec.
1551 (cp_build_function_call_vec): Take the original function
1552 decl as an optional final parameter and pass it to build_cxx_call.
1554 2019-09-25 Marek Polacek <polacek@redhat.com>
1556 PR c++/91877 - ICE with converting member of packed struct.
1557 * call.c (convert_like_real): Use similar_type_p in an assert.
1559 2019-09-25 Paolo Carlini <paolo.carlini@oracle.com>
1561 * name-lookup.c (check_extern_c_conflict): Use DECL_SOURCE_LOCATION.
1562 (check_local_shadow): Use it in three additional places.
1564 2019-09-24 Jason Merrill <jason@redhat.com>
1566 * parser.c (cp_parser_postfix_expression): Do set location of
1567 dependent member call.
1569 2019-09-24 Marek Polacek <polacek@redhat.com>
1571 PR c++/91868 - improve -Wshadow location.
1572 * name-lookup.c (check_local_shadow): Use DECL_SOURCE_LOCATION
1573 instead of input_location.
1575 PR c++/91845 - ICE with invalid pointer-to-member.
1576 * expr.c (mark_use): Use error_operand_p.
1577 * typeck2.c (build_m_component_ref): Check error_operand_p after
1578 calling mark_[lr]value_use.
1580 2019-09-23 Paolo Carlini <paolo.carlini@oracle.com>
1582 * pt.c (check_explicit_specialization): Use cp_expr_loc_or_input_loc.
1583 (process_partial_specialization): Likewise.
1584 (convert_nontype_argument_function): Likewise.
1585 (invalid_tparm_referent_p): Likewise.
1586 (convert_template_argument): Likewise.
1587 (check_valid_ptrmem_cst_expr): Tidy.
1589 2019-09-23 Jason Merrill <jason@redhat.com>
1591 PR c++/91809 - bit-field and ellipsis.
1592 * call.c (convert_arg_to_ellipsis): Don't call decay_conversion for
1593 arithmetic arguments.
1595 2019-09-23 Marek Polacek <polacek@redhat.com>
1597 PR c++/91844 - Implement CWG 2352, Similar types and reference binding.
1598 * call.c (reference_related_p): Use similar_type_p instead of
1600 (reference_compatible_p): Update implementation to match CWG 2352.
1601 * cp-tree.h (similar_type_p): Declare.
1602 * typeck.c (similar_type_p): New.
1604 2019-09-22 Marek Polacek <polacek@redhat.com>
1606 PR c++/91819 - ICE with operator++ and enum.
1607 * call.c (build_new_op_1): Set arg2_type.
1609 2019-09-17 Jason Merrill <jason@redhat.com>
1611 * parser.c (cp_parser_statement): Handle [[likely]] on
1614 2019-09-19 Jason Merrill <jason@redhat.com>
1617 * call.c (build_new_op_1): Don't apply any standard conversions to
1618 the operands of a built-in operator. Don't suppress conversions in
1620 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
1622 2019-09-16 Paolo Carlini <paolo.carlini@oracle.com>
1624 * decl.c (grokdeclarator): Use declspecs->locations and
1625 declarator->id_loc in a few error messages.
1626 * pt.c (finish_member_template_decl): Use DECL_SOURCE_LOCATION.
1627 (push_template_decl_real): Likewise.
1629 2019-09-15 Jason Merrill <jason@redhat.com>
1631 PR c++/30277 - int-width bit-field promotion.
1632 PR c++/33819 - long bit-field promotion.
1633 * typeck.c (cp_perform_integral_promotions): Handle large bit-fields
1634 properly. Handle 32-bit non-int bit-fields properly.
1635 (is_bitfield_expr_with_lowered_type): Don't look through NOP_EXPR.
1637 PR c++/82165 - enum bitfields and operator overloading.
1638 * call.c (build_new_op_1): Use unlowered_expr_type.
1640 * call.c (build_new_op_1): Don't apply any standard conversions to
1641 the operands of a built-in operator. Don't suppress conversions in
1643 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
1645 2019-09-15 Marek Polacek <polacek@redhat.com>
1647 PR c++/91740 - ICE with constexpr call and ?: in ARRAY_REF.
1648 * pt.c (build_non_dependent_expr): Call build_non_dependent_expr for
1651 2019-09-15 Nathan Sidwell <nathan@acm.org>
1653 * cp-tree.h (DECL_CLONED_FUNCTION_P): Reimplement using
1654 IDENTIFIER_CDTOR_P, correct documentation.
1655 (DECL_CLONED_FUNCTION): Directly access field.
1656 (decl_cloned_function_p): Delete.
1657 * class.c (decl_cloned_function_p): Delete.
1658 * pt.c (instantiate_template_1): Check DECL_CHAIN is a decl.
1660 2019-09-11 Nathan Sidwell <nathan@acm.org>
1662 * c-objcp-common.c (cp-objcp-common.c): Alphababetize and
1663 correctly mark all C++ nodes.
1664 * decl.c (cp_tree_node_structure): Alphabetize.
1666 2019-09-10 Marek Polacek <polacek@redhat.com>
1668 PR c++/91673 - ICE with noexcept in alias-declaration.
1669 * parser.c (CP_PARSER_FLAGS_DELAY_NOEXCEPT): New parser flag.
1670 (cp_parser_lambda_declarator_opt): Pass CP_PARSER_FLAGS_NONE to
1671 cp_parser_exception_specification_opt.
1672 (cp_parser_direct_declarator): Adjust a call to
1673 cp_parser_exception_specification_opt.
1674 (cp_parser_member_declaration): Pass CP_PARSER_FLAGS_DELAY_NOEXCEPT
1675 to cp_parser_declarator if not processing a friend or typedef
1677 (cp_parser_late_noexcept_specifier): Adjust a call to
1678 cp_parser_noexcept_specification_opt.
1679 (cp_parser_noexcept_specification_opt): New parameter for parser flags,
1680 drop the FRIEND_P parameter. Use the new parameter.
1681 (cp_parser_exception_specification_opt): Likewise.
1682 (cp_parser_transaction): Adjust a call to
1683 cp_parser_noexcept_specification_opt.
1684 (cp_parser_transaction_expression): Likewise.
1686 2019-09-10 Marek Polacek <polacek@redhat.com>
1688 PR c++/91705 - constexpr evaluation rejects ++/-- on floats.
1689 * constexpr.c (cxx_eval_increment_expression): Call fold_simple on
1692 2019-09-10 Paolo Carlini <paolo.carlini@oracle.com>
1694 * decl.c (has_designator_problem): Use cp_expr_loc_or_input_loc
1696 (build_enumerator): Likewise.
1697 (cp_finish_decl): Use DECL_SOURCE_LOCATION.
1698 (grokdeclarator): Use id_loc in two error_at; change errror
1699 message about constinit together constexpr to use two ranges.
1701 2019-09-09 Marek Polacek <polacek@redhat.com>
1703 PR c++/84374 - diagnose invalid uses of decltype(auto).
1704 * decl.c (grokdeclarator): Diagnose wrong usage of decltype(auto) in
1705 a function declaration.
1707 2019-09-06 Nathan Sidwell <nathan@acm.org>
1710 * cp-tree.h (IDENTIFIER_REPO_CHOSEN, DECL_REPO_AVAILABLE_P): Delete.
1711 (struct lang_decl_base): Remove repo_available_p.
1712 * decl.c (duplicate_decls): Don't copy DECL_REPO_AVAILABLE_P.
1714 (Reserve TREE_LANG_FLAG_3 for modules.
1715 * cp-tree.h (DECL_CONSTRUCTION_VTABLE_P): Delete.
1716 (DECL_NON_TRIVIALLY_INITIALIZED_P): Move to TREE_LANG_FLAG_6.
1717 * class.c (build_ctor_vtbl_group): Don't set
1718 DECL_CONSTRUCTION_VTABLE_P.
1719 * decl2.c (determine_visibility_from_class): Don't check
1720 DECL_CONSTRUCTION_VTABLE_P anymore.
1722 2019-09-06 Martin Liska <mliska@suse.cz>
1725 * Make-lang.in: Remove repo.o.
1726 * config-lang.in: Likewise.
1727 * cp-tree.h (init_repo): Remove declarations
1728 of repo-related functions.
1729 (repo_emit_p): Likewise.
1730 (repo_export_class_p): Likewise.
1731 (finish_repo): Likewise.
1732 * decl2.c (import_export_class): Always
1734 (mark_needed): Remove -frepo from comment.
1735 (import_export_decl): Similarly here.
1736 (c_parse_final_cleanups): Remove call of finish_repo.
1737 * lex.c (cxx_init): Remove call to init_repo.
1738 * optimize.c (can_alias_cdtor): Remove dead condition.
1739 * pt.c (push_template_decl_real): Update comment.
1740 (instantiate_decl): Remove dead code used for -frepo.
1743 2019-09-05 Marek Polacek <polacek@redhat.com>
1745 PR c++/91644 - ICE with constinit in function template.
1746 * decl.c (start_decl): Call retrofit_lang_decl for constinit variables.
1747 * pt.c (tsubst_expr): Pass LOOKUP_CONSTINIT down to cp_finish_decl for
1748 constinit variables.
1750 2019-09-05 Nathan Sidwell <nathan@acm.org>
1752 * cp-tree.h (DECL_VTABLE_OR_VTT_P): Forward to DECL_VIRTUAL_P.
1754 2019-09-04 Marek Polacek <polacek@redhat.com>
1756 * call.c (build_over_call): Remove -fdeduce-init-list implementation.
1757 * pt.c (unify): Likewise.
1759 2019-09-01 Marek Polacek <polacek@redhat.com>
1761 PR c++/91129 - wrong error with binary op in template argument.
1762 * typeck.c (warn_for_null_address): Use fold_for_warn instead of
1763 fold_non_dependent_expr.
1764 (cp_build_binary_op): Likewise.
1766 2019-08-30 Jason Merrill <jason@redhat.com>
1768 Add source location to TRAIT_EXPR.
1769 * cp-tree.h (TRAIT_EXPR_LOCATION): New.
1770 (struct tree_trait_expr): Add locus field.
1771 * parser.c (cp_parser_trait_expr): Pass trait_loc down.
1772 * pt.c (tsubst_copy_and_build) [TRAIT_EXPR]: Likewise.
1773 * semantics.c (finish_trait_expr): Add location parm.
1774 * tree.c (cp_expr_location): Handle TRAIT_EXPR.
1776 2019-08-29 Paolo Carlini <paolo.carlini@oracle.com>
1778 * decl.c (check_var_type): Add location_t parameter and use it.
1779 (grokdeclarator): Adjust call.
1780 * pt.c (tsubst_decl): Likewise.
1781 * cp-tree.h: Adjust declaration.
1783 2019-08-28 Marek Polacek <polacek@redhat.com>
1785 Implement P1152R4: Deprecating some uses of volatile.
1787 * cp-gimplify.c (cp_fold): Set TREE_THIS_VOLATILE.
1788 * decl.c (grokdeclarator): Warn about a volatile-qualified structured
1789 binding and return type.
1790 (grokparms): Warn about a volatile-qualified function parameter.
1791 * expr.c (mark_use) <case MODIFY_EXPR>: Emit a -Wvolatile warning.
1792 * typeck.c (cp_build_unary_op): Emit a -Wvolatile warning for pre and
1793 post ++/-- on a volatile operand.
1794 (genericize_compound_lvalue): Use a better location. Don't lose
1796 (cp_build_modify_expr): Emit a -Wvolatile warning for a compound
1797 assignment whose LHS is volatile-qualified. Build the assignment with
1798 a more precise location.
1800 2019-08-28 Marek Polacek <polacek@redhat.com>
1802 PR c++/91360 - Implement C++20 P1143R2: constinit.
1803 * cp-tree.h (TINFO_VAR_DECLARED_CONSTINIT): Define.
1804 (LOOKUP_CONSTINIT): Define.
1805 (enum cp_decl_spec): Add ds_constinit.
1806 * decl.c (check_tag_decl): Give an error for constinit in type
1808 (check_initializer): Also check LOOKUP_CONSTINIT.
1809 (cp_finish_decl): Add checking for a constinit declaration. Set
1810 TINFO_VAR_DECLARED_CONSTINIT.
1811 (grokdeclarator): Add checking for a declaration with the constinit
1813 * lex.c (init_reswords): Handle D_CXX20.
1814 * parser.c (cp_lexer_get_preprocessor_token): Pass a better location
1815 to warning_at. Warn about C++20 keywords.
1816 (cp_keyword_starts_decl_specifier_p): Handle RID_CONSTINIT.
1817 (cp_parser_diagnose_invalid_type_name): Add an inform about constinit.
1818 (cp_parser_decomposition_declaration): Maybe pass LOOKUP_CONSTINIT to
1820 (cp_parser_decl_specifier_seq): Handle RID_CONSTINIT.
1821 (cp_parser_init_declarator): Maybe pass LOOKUP_CONSTINIT to
1823 (set_and_check_decl_spec_loc): Add "constinit".
1824 * pt.c (tsubst_decl): Set TINFO_VAR_DECLARED_CONSTINIT.
1825 (instantiate_decl): Maybe pass LOOKUP_CONSTINIT to cp_finish_decl.
1826 * typeck2.c (store_init_value): If a constinit variable wasn't
1827 initialized using a constant initializer, give an error.
1829 2019-08-28 Nathan Sidwell <nathan@acm.org>
1832 * name-lookup.c (cp_emit_debug_info): Check for builtins during
1835 2019-08-27 Marek Polacek <polacek@redhat.com>
1837 PR c++/81676 - bogus -Wunused warnings in constexpr if.
1838 * semantics.c (maybe_mark_exp_read_r): New function.
1839 (finish_if_stmt): Call it on THEN_CLAUSE and ELSE_CLAUSE.
1841 PR c++/91428 - warn about std::is_constant_evaluated in if constexpr.
1842 * cp-tree.h (decl_in_std_namespace_p): Declare.
1843 * semantics.c (is_std_constant_evaluated_p): New.
1844 (finish_if_stmt_cond): Warn about "std::is_constant_evaluated ()" in
1846 * typeck.c (decl_in_std_namespace_p): No longer static.
1848 2019-08-26 Jason Merrill <jason@redhat.com>
1850 * decl.c (duplicate_decls): Always merge DECL_DECLARED_CONSTEXPR_P.
1852 2019-08-26 Marek Polacek <polacek@redhat.com>
1854 PR c++/91545 - ICE in constexpr store evaluation.
1855 * constexpr.c (cxx_eval_store_expression): Check FIELD_DECL instead
1858 2019-08-24 Nathan Sidwell <nathan@acm.org>
1860 * class.c (check_for_overrides): Conversion operators need
1863 2019-08-24 Paolo Carlini <paolo.carlini@oracle.com>
1865 * semantics.c (finish_switch_cond): Improve error message location.
1867 2019-08-23 Jason Merrill <jason@redhat.com>
1869 * decl2.c (decl_dependent_p): New.
1870 (mark_used): Check it instead of just processing_template_decl.
1872 2019-08-23 Jason Merrill <jason@redhat.com>
1874 * parser.c (cp_parser_nested_name_specifier_opt): Avoid redundant
1877 2019-08-23 Marek Polacek <polacek@redhat.com>
1879 PR c++/91521 - wrong error with operator->.
1880 * decl.c (grokdeclarator): Return error_mark_node for an invalid
1881 trailing return type.
1883 PR c++/79817 - attribute deprecated on namespace.
1884 * cp-tree.h (cp_warn_deprecated_use_scopes): Declare.
1885 * decl.c (grokdeclarator): Call cp_warn_deprecated_use_scopes.
1886 (type_is_deprecated): Likewise.
1887 * decl2.c (cp_warn_deprecated_use_scopes): New function.
1888 * name-lookup.c (handle_namespace_attrs): Handle attribute deprecated.
1889 * parser.c (cp_parser_namespace_alias_definition): Call
1890 cp_warn_deprecated_use_scopes.
1891 (cp_parser_using_declaration): Likewise.
1892 (cp_parser_using_directive): Likewise.
1893 * semantics.c (finish_id_expression_1): Likewise.
1895 2019-08-23 Nathan Sidwell <nathan@acm.org>
1897 * class.c (check_for_override): Checking IDENTIFIER_VIRTUAL_P is
1898 sufficient, reorder DECL_OVERRIDE_P check.
1900 2019-08-23 Iain Sandoe <iain@sandoe.co.uk>
1903 * parser.c (cp_parser_initial_pragma): Call c_common_no_more_pch ()
1904 after determining that the first token is not
1905 PRAGMA_GCC_PCH_PREPROCESS.
1907 2019-08-22 Marek Polacek <polacek@redhat.com>
1909 PR c++/91304 - prefix attributes ignored in condition.
1910 * parser.c (cp_parser_condition): Handle prefix attributes.
1912 2019-08-21 Richard Sandiford <richard.sandiford@arm.com>
1915 * decl.c (duplicate_decls): Call copy_attributes_to_builtin inside
1916 the BUILT_IN_NORMAL block rather than afterward.
1918 2019-08-19 Marek Polacek <polacek@redhat.com>
1920 PR c++/91264 - detect modifying const objects in constexpr.
1921 * constexpr.c (modifying_const_object_error): New function.
1922 (cxx_eval_call_expression): Set TREE_READONLY on a CONSTRUCTOR of
1923 a const-qualified object after it's been fully constructed.
1924 (modifying_const_object_p): New function.
1925 (cxx_eval_store_expression): Detect modifying a const object
1926 during constant expression evaluation.
1927 (cxx_eval_increment_expression): Use a better location when building
1929 (cxx_eval_constant_expression) <case DECL_EXPR>: Mark a constant
1930 object's constructor TREE_READONLY.
1932 2019-08-15 Jason Merrill <jason@redhat.com>
1934 PR c++/90393 - ICE with thow in ?:
1936 PR c++/64372, DR 1560 - Gratuitous lvalue-to-rvalue conversion in ?:
1937 * tree.c (lvalue_kind): Handle throw in one arm.
1938 * typeck.c (rationalize_conditional_expr): Likewise.
1939 (cp_build_modify_expr): Likewise.
1941 2019-08-14 Jason Merrill <jason@redhat.com>
1943 Implement P0848R3, Conditionally Trivial Special Member Functions.
1944 * tree.c (special_memfn_p): New.
1945 * class.c (add_method): When overloading, hide ineligible special
1947 (check_methods): Set TYPE_HAS_COMPLEX_* here.
1948 * decl.c (grok_special_member_properties): Not here.
1949 * name-lookup.c (push_class_level_binding_1): Move overloaded
1950 functions case down, accept FUNCTION_DECL as target_decl.
1952 2019-08-14 Jonathan Wakely <jwakely@redhat.com>
1955 * name-lookup.c (get_std_name_hint): Fix min_dialect field for
1956 complex_literals and make_unique entries.
1958 2019-08-14 Jakub Jelinek <jakub@redhat.com>
1959 Marek Polacek <polacek@redhat.com>
1961 PR c++/91391 - bogus -Wcomma-subscript warning.
1962 * parser.c (cp_parser_postfix_open_square_expression): Don't warn about
1963 a deprecated comma here. Pass warn_comma_subscript down to
1964 cp_parser_expression.
1965 (cp_parser_expression): New bool parameter. Warn about uses of a comma
1966 operator within a subscripting expression.
1967 (cp_parser_skip_to_closing_square_bracket): Revert to pre-r274121 state.
1968 (cp_parser_skip_to_closing_square_bracket_1): Remove.
1970 2019-08-14 Jonathan Wakely <jwakely@redhat.com>
1972 * name-lookup.c (get_std_name_hint): Add more entries.
1974 2019-08-14 Paolo Carlini <paolo.carlini@oracle.com>
1976 * decl2.c (grok_array_decl): Use the location of the open square
1977 bracket in error message about invalid types.
1979 2019-08-14 Paolo Carlini <paolo.carlini@oracle.com>
1981 * decl.c (grokdeclarator): Check here for typedef a function
1982 definition or a member function definition.
1983 (start_function): Adjust.
1984 (grokmethod): Likewise.
1986 2019-08-13 Richard Sandiford <richard.sandiford@arm.com>
1989 * decl.c (duplicate_decls): Use copy_decl_built_in_function.
1990 * pt.c (declare_integer_pack): Use set_decl_built_in_function.
1992 2019-08-13 Marek Polacek <polacek@redhat.com>
1994 PR c++/90473 - wrong code with nullptr in default argument.
1995 * call.c (null_ptr_cst_p): Update quote from the standard.
1996 * decl.c (check_default_argument): Don't return nullptr when the arg
1999 2019-08-13 Marek Polacek <polacek@redhat.com>
2001 * cp-tree.h (DECL_MUTABLE_P): Use FIELD_DECL_CHECK.
2003 2019-08-10 Jakub Jelinek <jakub@redhat.com>
2005 * parser.c (cp_parser_omp_clause_name): Parse device_type.
2006 (cp_parser_omp_clause_device_type): New function.
2007 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
2008 (OMP_DECLARE_TARGET_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
2009 (cp_parser_omp_declare_target): Handle device_type clauses. Remove
2010 diagnostics for declare target with clauses nested in clause-less
2011 declare target declaration-definition-seq.
2012 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_DEVICE_TYPE.
2014 2019-08-09 Jakub Jelinek <jakub@redhat.com>
2016 * parser.c (check_no_duplicate_clause): Simplify using
2018 (cp_parser_omp_clause_if): Fix up printing of target {enter,exit} data
2019 directive name modifiers.
2022 * parser.c (cp_parser_omp_clause_dist_schedule): Comment out the
2023 check_no_duplicate_clause call, instead emit a warning for duplicate
2024 dist_schedule clauses.
2026 2019-08-08 Paolo Carlini <paolo.carlini@oracle.com>
2028 * decl.c (grokdeclarator): Use id_loc and EXPR_LOCATION in
2029 a few error messages.
2031 2019-08-08 Marek Polacek <polacek@redhat.com>
2033 PR c++/87519 - bogus warning with -Wsign-conversion.
2034 * typeck.c (cp_build_binary_op): Use same_type_p instead of comparing
2037 * constexpr.c (inline_asm_in_constexpr_error): New.
2038 (cxx_eval_constant_expression) <case ASM_EXPR>: Call it.
2039 (potential_constant_expression_1) <case ASM_EXPR>: Likewise.
2041 2019-08-08 Jakub Jelinek <jakub@redhat.com>
2043 * semantics.c (finish_omp_clauses): For C_ORT_OMP
2044 OMP_CLAUSE_USE_DEVICE_* clauses use oacc_reduction_head bitmap
2045 instead of generic_head to track duplicates.
2047 2019-08-07 Marek Polacek <polacek@redhat.com>
2049 PR c++/81429 - wrong parsing of constructor with C++11 attribute.
2050 * parser.c (cp_parser_constructor_declarator_p): Handle the scenario
2051 when a parameter declaration begins with [[attribute]].
2053 2019-08-07 Marek Polacek <polacek@redhat.com>
2055 PR c++/91346 - Implement P1668R1, allow unevaluated asm in constexpr.
2056 * constexpr.c (cxx_eval_constant_expression): Handle ASM_EXPR.
2057 (potential_constant_expression_1) <case ASM_EXPR>: Allow.
2058 * cp-tree.h (finish_asm_stmt): Adjust.
2059 * parser.c (cp_parser_asm_definition): Grab the locaion of "asm" and
2060 use it. Change an error to a pedwarn. Allow asm in C++2a, warn
2062 * pt.c (tsubst_expr): Pass a location down to finish_asm_stmt.
2063 * semantics.c (finish_asm_stmt): New location_t parameter. Use it.
2065 2019-08-07 Jakub Jelinek <jakub@redhat.com>
2067 * parser.c (cp_parser_omp_clause_name): Parse use_device_addr clause.
2068 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
2069 (OMP_TARGET_DATA_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
2070 (cp_parser_omp_target_data): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR
2071 like PRAGMA_OMP_CLAUSE_USE_DEVICE_PTR, adjust diagnostics about no
2072 map or use_device_* clauses.
2073 * semantics.c (finish_omp_clauses): For OMP_CLAUSE_USE_DEVICE_PTR
2074 in OpenMP, require pointer or reference to pointer type rather than
2075 pointer or array or reference to pointer or array type. Handle
2076 OMP_CLAUSE_USE_DEVICE_ADDR.
2077 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_USE_DEVICE_ADDR.
2079 2019-08-06 Jason Merrill <jason@redhat.com>
2081 PR c++/91378 - ICE with noexcept and auto return type.
2082 * pt.c (maybe_instantiate_noexcept): push_to_top_level.
2084 2019-08-06 Paolo Carlini <paolo.carlini@oracle.com>
2086 * decl.c (check_array_designated_initializer): Use
2087 cp_expr_loc_or_input_loc in one place.
2089 2019-08-06 Jakub Jelinek <jakub@redhat.com>
2091 * parser.c (cp_parser_omp_for_loop): For OMP_LOOP, ignore parallel
2092 clauses and predetermine iterator as lastprivate.
2093 * semantics.c (handle_omp_for_class_iterator): Use
2094 OMP_CLAUSE_LASTPRIVATE_LOOP_IV instead of
2095 OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV, set it for lastprivate also
2096 on OMP_LOOP construct. If a clause is missing for class iterator
2097 on OMP_LOOP, add firstprivate clause, and if there is private
2098 clause, turn it into firstprivate too.
2099 (finish_omp_for): Formatting fix. For OMP_LOOP, adjust
2100 OMP_CLAUSE_LASTPRIVATE_LOOP_IV clause CP_CLAUSE_INFO, so that it
2101 uses copy ctor instead of default ctor.
2102 * cp-gimplify.c (cp_gimplify_expr): Handle OMP_LOOP like
2104 (cp_fold_r): Likewise.
2105 (cp_genericize_r): Likewise.
2106 (cxx_omp_finish_clause): Also finish lastprivate clause with
2107 OMP_CLAUSE_LASTPRIVATE_LOOP_IV flag.
2108 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_BIND.
2109 (tsubst_omp_for_iterator): For OMP_LOOP, ignore parallel
2110 clauses and predetermine iterator as lastprivate.
2111 * constexpr.c (potential_constant_expression_1): Handle OMP_LOOP
2112 like OMP_DISTRIBUTE etc.
2114 2019-08-05 Marek Polacek <polacek@redhat.com>
2116 DR 2413 - typename in conversion-function-ids.
2117 * parser.c (cp_parser_conversion_type_id): Call
2118 cp_parser_type_specifier_seq with CP_PARSER_FLAGS_TYPENAME_OPTIONAL
2119 instead of CP_PARSER_FLAGS_NONE.
2121 2019-08-05 Paolo Carlini <paolo.carlini@oracle.com>
2123 * cp-tree.h (cp_expr_loc_or_input_loc): New.
2124 (cxx_incomplete_type_diagnostic): Use it.
2125 * call.c (build_converted_constant_expr_internal, convert_like_real,
2126 convert_arg_to_ellipsis, convert_for_arg_passing, build_over_call,
2127 build_cxx_call, perform_implicit_conversion_flags,
2128 initialize_reference): Likewise.
2129 * constexpr.c (cxx_eval_internal_function, cxx_eval_call_expression,
2130 eval_and_check_array_index, cxx_eval_store_expression,
2131 cxx_eval_statement_list, cxx_eval_loop_expr,
2132 cxx_eval_constant_expression, potential_constant_expression_1):
2134 * constraint.cc (check_for_logical_overloads,
2135 satisfy_predicate_constraint): Likewise.
2136 * cp-gimplify.c (cp_gimplify_expr): Likewise.
2137 * cvt.c (cp_convert_to_pointer, convert_to_reference,
2138 cp_convert_and_check, ocp_convert, maybe_warn_nodiscard): Likewise.
2139 * decl.c (pop_switch): Likewise.
2140 * decl2.c (delete_sanity): Likewise.
2141 * error.c (location_of): Likewise.
2142 * init.c (maybe_warn_list_ctor, build_aggr_init,
2143 warn_placement_new_too_small, build_new_1, build_vec_init): Likewise.
2144 * lex.c (unqualified_name_lookup_error): Likewise.
2145 * parser.c (cp_parser_initializer_list, cp_parser_omp_for_cond):
2147 * pt.c (check_for_bare_parameter_packs, check_valid_ptrmem_cst_expr,
2148 unify_arg_conversion, convert_nontype_argument,
2149 tsubst_copy_and_build, resolve_typename_type): Likewise.
2150 * semantics.c (maybe_convert_cond, finish_call_expr,
2151 cp_build_vec_convert): Likewise.
2152 * typeck.c (decay_conversion, rationalize_conditional_expr,
2153 cp_build_unary_op, build_x_compound_expr_from_list,
2154 maybe_warn_about_returning_address_of_local,
2155 maybe_warn_pessimizing_move): Likewise.
2156 * typeck2.c (check_narrowing, digest_init_r,
2157 process_init_constructor_array): Likewise.
2159 2019-08-05 Tom Honermann <tom@honermann.net>
2161 * parser.c (cp_parser_template_declaration_after_parameters): Enable
2162 class template argument deduction for non-type template parameters
2163 in literal operator templates.
2165 2019-08-05 Marek Polacek <polacek@redhat.com>
2167 PR c++/91338 - Implement P1161R3: Deprecate a[b,c].
2168 * parser.c (cp_parser_postfix_open_square_expression): Warn about uses
2169 of a comma operator within a subscripting expression.
2170 (cp_parser_skip_to_closing_square_bracket_1): New function, made out
2172 (cp_parser_skip_to_closing_square_bracket): ...this.
2174 2019-08-05 Jason Merrill <jason@redhat.com>
2176 * semantics.c (force_paren_expr): Preserve location.
2178 2019-08-02 Marek Polacek <polacek@redhat.com>
2180 PR c++/91230 - wrong error with __PRETTY_FUNCTION__ and generic lambda.
2181 * pt.c (value_dependent_expression_p): Consider __PRETTY_FUNCTION__
2182 inside a template function value-dependent.
2184 2019-08-02 Paolo Carlini <paolo.carlini@oracle.com>
2186 * tree.c (handle_nodiscard_attribute): Do not warn about nodiscard
2187 applied to a constructor.
2189 2019-08-02 Martin Liska <mliska@suse.cz>
2191 * decl.c (grok_op_properties):
2192 Mark DECL_SET_IS_OPERATOR_DELETE for user-provided delete operators.
2194 2019-08-01 Martin Sebor <msebor@redhat.com>
2197 * decl.c (reshape_init_array_1): Avoid truncating initializer
2198 lists containing string literals.
2200 2019-08-01 Marek Polacek <polacek@redhat.com>
2202 PR c++/90805 - detect narrowing in case values.
2203 * decl.c (case_conversion): Detect narrowing in case values.
2205 2019-07-31 Paolo Carlini <paolo.carlini@oracle.com>
2207 * decl2.c (delete_sanity): Improve diagnostic locations, use
2208 cp_expr_loc_or_loc in four places.
2210 2019-07-31 Jason Merrill <jason@redhat.com>
2212 PR c++/90538 - multiple expansions of capture packs
2213 * cp-tree.h (DECLTYPE_FOR_INIT_CAPTURE): Remove.
2214 * lambda.c (add_capture): Copy parameter packs from init.
2215 (lambda_capture_field_type): Always use auto for init-capture.
2216 * pt.c (uses_parameter_packs): Return tree.
2217 (tsubst) [DECLTYPE_TYPE]: Remove init-capture handling.
2218 (gen_elem_of_pack_expansion_instantiation): Don't push
2219 local_specialization_stack.
2220 (prepend_one_capture): New.
2221 (tsubst_lambda_expr): Use it. Don't touch local_specializations.
2222 (do_auto_deduction): Avoid redundant error.
2224 Fix copy_node of TEMPLATE_INFO.
2225 * cp-tree.h (struct tree_template_info): Use tree_base instead of
2226 tree_common. Add tmpl and args fields.
2227 (TI_TEMPLATE, TI_ARGS): Adjust.
2229 2019-07-30 Martin Liska <mliska@suse.cz>
2231 PR tree-optimization/91270
2232 * tree-ssa-dce.c (propagate_necessity): Mark 2nd argument
2233 of delete operator as needed.
2235 2019-07-25 Martin Liska <mliska@suse.cz>
2236 Dominik Infuhr <dominik.infuehr@theobroma-systems.com>
2239 * decl.c (cxx_init_decl_processing): Mark delete operators
2240 with DECL_SET_IS_OPERATOR_DELETE.
2242 2019-07-25 Martin Liska <mliska@suse.cz>
2244 * decl.c (duplicate_decls): Use new macros
2245 (e.g. DECL_SET_LAMBDA_FUNCTION and DECL_LAMBDA_FUNCTION_P).
2246 (cxx_init_decl_processing): Likewise.
2247 (grok_op_properties): Likewise.
2248 * parser.c (cp_parser_lambda_declarator_opt): Likewise.
2250 2019-07-24 Martin Sebor <msebor@redhat.com>
2253 * decl.c (finish_function): Use lang_mask.
2255 2019-07-20 Jason Merrill <jason@redhat.com>
2257 * cp-tree.h (ovl_iterator::using_p): A USING_DECL by itself was also
2258 introduced by a using-declaration.
2260 2019-07-20 Jason Merrill <jason@redhat.com>
2262 Reduce memory consumption for push/pop_access_scope.
2263 * name-lookup.c (leave_scope): Do add class levels other than
2264 previous_class_level to free_binding_level.
2265 (invalidate_class_lookup_cache): Move from class.c, add to
2267 * pt.c (saved_access_scope): Change from list to vec.
2269 2019-07-20 Jakub Jelinek <jakub@redhat.com>
2271 * cp-tree.h (OMP_FOR_GIMPLIFYING_P): Use OMP_LOOPING_CHECK
2272 instead of OMP_LOOP_CHECK.
2273 * parser.c (cp_parser_omp_clause_name): Handle bind clause.
2274 (cp_parser_omp_clause_bind): New function.
2275 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_BIND.
2276 (OMP_LOOP_CLAUSE_MASK): Define.
2277 (cp_parser_omp_loop): New function.
2278 (cp_parser_omp_parallel, cp_parser_omp_teams): Handle parsing of
2279 loop combined with parallel or teams.
2280 (cp_parser_omp_construct): Handle PRAGMA_OMP_LOOP.
2281 (cp_parser_pragma): Likewise.
2282 * pt.c (tsubst_expr): Handle OMP_LOOP.
2283 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_BIND.
2285 2019-07-19 Jason Merrill <jason@redhat.com>
2287 PR c++/90101 - dependent class non-type parameter.
2288 * pt.c (invalid_nontype_parm_type_p): Check for dependent class type.
2290 2019-07-18 Jason Merrill <jason@redhat.com>
2292 PR c++/90098 - partial specialization and class non-type parms.
2295 * call.c (build_converted_constant_expr_internal): Don't copy.
2296 * pt.c (process_partial_specialization): Allow VIEW_CONVERT_EXPR
2297 around class non-type parameter.
2298 (unify) [TEMPLATE_PARM_INDEX]: Ignore cv-quals.
2300 2019-07-16 Jason Merrill <jason@redhat.com>
2302 * parser.c (make_location): Add overload taking cp_lexer* as last
2305 * parser.c (cp_parser_simple_type_specifier): Separate tentative
2306 parses for optional type-spec and CTAD.
2308 * parser.c (cp_parser_nested_name_specifier_opt): If the token is
2309 already CPP_NESTED_NAME_SPECIFIER, leave it alone.
2311 2019-07-12 Jakub Jelinek <jakub@redhat.com>
2313 * parser.c (cp_parser_omp_clause_name): Handle order clause.
2314 (cp_parser_omp_clause_order): New function.
2315 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_ORDER.
2316 (OMP_SIMD_CLAUSE_MASK, OMP_FOR_CLAUSE_MASK): Add
2317 PRAGMA_OMP_CLAUSE_ORDER.
2318 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_ORDER.
2319 * pt.c (tsubst_omp_clauses): Likewise.
2321 2019-07-10 Paolo Carlini <paolo.carlini@oracle.com>
2323 * decl.c (get_type_quals,
2324 smallest_type_location (const cp_decl_specifier_seq*)): New.
2325 (check_tag_decl): Use smallest_type_location in error_at about
2326 multiple types in one declaration.
2327 (grokdeclarator): Use locations[ds_complex] in error_at about
2328 complex invalid; use locations[ds_storage_class] in error_at
2329 about static cdtor; use id_loc in error_at about flexible
2330 array member in union; use get_type_quals.
2332 2019-07-09 Martin Sebor <msebor@redhat.com>
2335 * cp-tree.h: Change class-key of PODs to struct and others to class.
2337 * semantics.c (finalize_nrv_r): Same.
2339 2019-07-09 Martin Sebor <msebor@redhat.com>
2342 * constexpr.c (cxx_eval_call_expression): Change class-key from class
2343 to struct and vice versa to match convention and avoid -Wclass-is-pod
2344 and -Wstruct-no-pod.
2345 * constraint.cc (get_concept_definition): Same.
2347 * cxx-pretty-print.h: Same.
2349 * logic.cc (term_list::replace): Same.
2350 * name-lookup.c (find_local_binding): Same.
2351 * pt.c (tsubst_binary_right_fold): Same.
2352 * search.c (field_accessor_p): Same.
2353 * semantics.c (expand_or_defer_fn): Same.
2355 2019-07-08 Jakub Jelinek <jakub@redhat.com>
2358 * decl2.c (cp_omp_mappable_type_1): Don't emit any note for
2359 error_mark_node type.
2361 2019-07-05 Jakub Jelinek <jakub@redhat.com>
2365 * call.c (build_new_method_call_1): Remove set but not used variable
2368 2019-07-05 Paolo Carlini <paolo.carlini@oracle.com>
2370 PR c++/67184 (again)
2372 * call.c (build_over_call): Devirtualize user-defined operators
2373 coming from a base too.
2374 (build_new_method_call_1): Do not devirtualize here.
2376 2019-07-04 Marek Polacek <polacek@redhat.com>
2379 PR c++/83374 - __is_standard_layout wrong for a class with repeated
2381 * class.c (check_bases): Set CLASSTYPE_NON_STD_LAYOUT for a class if
2382 CLASSTYPE_REPEATED_BASE_P is true.
2384 2019-07-04 Andrew Stubbs <ams@codesourcery.com>
2386 * cp-tree.h (cp_omp_emit_unmappable_type_notes): New prototype.
2387 * decl.c (cp_finish_decl): Call cp_omp_emit_unmappable_type_notes.
2388 * decl2.c (cp_omp_mappable_type): Move contents to ...
2389 (cp_omp_mappable_type_1): ... here and add note output.
2390 (cp_omp_emit_unmappable_type_notes): New function.
2391 * semantics.c (finish_omp_clauses): Call
2392 cp_omp_emit_unmappable_type_notes in four places.
2394 2019-07-03 Martin Liska <mliska@suse.cz>
2396 * call.c (build_new_op_1): Remove dead assignemts.
2397 * typeck.c (cp_build_binary_op): Likewise.
2399 2019-06-27 Jason Merrill <jason@redhat.com>
2401 PR c++/55442 - memory-hog with highly recursive constexpr.
2402 * constexpr.c (push_cx_call_context): Return depth.
2403 (cxx_eval_call_expression): Don't cache past constexpr_cache_depth.
2405 2019-06-27 Jan Hubicka <jh@suse.cz>
2407 * class.c (layout_class_type): Set TYPE_CXX_ODR_P for as-base
2410 2019-06-27 Martin Liska <mliska@suse.cz>
2412 * class.c (adjust_clone_args): Remove obviously
2414 (dump_class_hierarchy_r): Likewise.
2415 * decl.c (check_initializer): Likewise.
2416 * parser.c (cp_parser_lambda_expression): Likewise.
2417 * pt.c (unify_bound_ttp_args): Likewise.
2418 (convert_template_argument): Likewise.
2419 * rtti.c (build_headof): Likewise.
2420 * typeck.c (convert_for_initialization): Likewise.
2422 2019-06-25 Jason Merrill <jason@redhat.com>
2424 PR c++/70462 - unnecessary base ctor variant with final.
2425 * optimize.c (populate_clone_array): Skip base variant if
2427 (maybe_clone_body): We don't need an alias if we are only defining
2430 * class.c (resolves_to_fixed_type_p): Check CLASSTYPE_FINAL.
2432 2019-06-25 Jakub Jelinek <jakub@redhat.com>
2435 * constexpr.c (cxx_eval_array_reference): Don't look through VCE from
2436 vector type if lval.
2438 2019-06-25 Jozef Lawrynowicz <jozef.l@mittosystems.com>
2440 * lex.c (init_reswords): Create keyword for "__intN__" type.
2441 * cp-tree.h (cp_decl_specifier_seq): New bitfield "int_n_alt".
2442 * decl.c (grokdeclarator): Don't pedwarn about "__intN" ISO
2443 C incompatibility if alternate "__intN__" form is used.
2444 * parser.c (cp_parser_simple_type_specifier): Set
2445 decl_specs->int_n_alt if "__intN__" form is used.
2447 2019-06-24 Jan Hubicka <jh@suse.cz>
2449 * lex.c (cxx_make_type): Set TYPE_CXX_ODR_P.
2451 2019-06-24 Jason Merrill <jason@redhat.com>
2453 * class.c (layout_class_type): Don't use a separate
2454 CLASSTYPE_AS_BASE if it's the same size.
2456 2019-06-23 Marek Polacek <polacek@redhat.com>
2458 * call.c (convert_default_arg): Use DEFERRED_PARSE instead of
2460 * cp-objcp-common.c (cp_tree_size): Likewise. Use tree_deferred_parse
2461 instead of tree_default_arg.
2462 * cp-tree.def: Rename DEFAULT_ARG to DEFERRED_PARSE.
2463 * cp-tree.h: Rename DEFARG_TOKENS to DEFPARSE_TOKENS. Rename
2464 DEFARG_INSTANTIATIONS to DEFPARSE_INSTANTIATIONS. Rename
2465 tree_default_arg to tree_deferred_parse.
2466 (UNPARSED_NOEXCEPT_SPEC_P): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2467 (cp_tree_node_structure_enum): Rename TS_CP_DEFAULT_ARG to
2468 TS_CP_DEFERRED_PARSE.
2469 (lang_tree_node): Rename tree_default_arg to tree_deferred_parse.
2470 Rename default_arg to deferred_parse. Use TS_CP_DEFERRED_PARSE instead
2471 of TS_CP_DEFAULT_ARG.
2472 (defarg_location): Remove declaration.
2473 (defparse_location): Add declaration.
2474 * decl.c (grokfndecl): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2475 Call defparse_location instead of defarg_location.
2476 (check_default_argument): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2477 (cp_tree_node_structure): Likewise. Use TS_CP_DEFERRED_PARSE instead
2478 of TS_CP_DEFAULT_ARG.
2479 * decl2.c (grokfield): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2480 * error.c (dump_expr): Likewise.
2481 (location_of): Likewise.
2482 * init.c (get_nsdmi): Likewise.
2483 * parser.c (cp_parser_save_noexcept): Likewise. Use DEFPARSE_TOKENS
2484 instead of DEFARG_TOKENS.
2485 (cp_parser_late_noexcept_specifier): Likewise.
2486 (cp_parser_late_parse_one_default_arg): Use DEFPARSE_TOKENS instead
2488 (cp_parser_late_parsing_default_args): Use DEFERRED_PARSE instead of
2489 DEFAULT_ARG. Use DEFPARSE_INSTANTIATIONS instead of
2490 DEFARG_INSTANTIATIONS.
2491 (cp_parser_cache_defarg): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2492 Use DEFPARSE_TOKENS instead of DEFARG_TOKENS. Use
2493 DEFPARSE_INSTANTIATIONS instead of DEFARG_INSTANTIATIONS.
2494 (defparse_location): Renamed from defarg_location.
2495 * pt.c (tsubst_default_argument): Use DEFERRED_PARSE instead of
2497 (tsubst_arg_types): Likewise.
2498 (dependent_type_p_r): Likewise.
2499 * tree.c (cp_tree_equal): Likewise.
2500 (cp_walk_subtrees): Likewise.
2501 * typeck.c (convert_arguments): Likewise.
2503 2019-06-22 Marek Polacek <polacek@redhat.com>
2505 PR c++/86476 - noexcept-specifier is a complete-class context.
2507 * cp-tree.def (DEFAULT_ARG): Update commentary.
2508 * cp-tree.h (UNPARSED_NOEXCEPT_SPEC_P): New macro.
2509 (tree_default_arg): Use tree_base instead of tree_common.
2510 (do_push_parm_decls, maybe_check_overriding_exception_spec): Declare.
2511 * decl.c (do_push_parm_decls): New function, broken out of...
2512 (store_parm_decls): ...here. Call it.
2513 * except.c (nothrow_spec_p): Accept DEFAULT_ARG in the assert.
2514 * parser.c (cp_parser_noexcept_specification_opt,
2515 cp_parser_late_noexcept_specifier, noexcept_override_late_checks):
2517 (unparsed_noexcepts): New macro.
2518 (push_unparsed_function_queues): Update initializer.
2519 (cp_parser_direct_declarator): Pass FRIEND_P to
2520 cp_parser_exception_specification_opt.
2521 (inject_parm_decls): New.
2522 (pop_injected_parms): New.
2523 (cp_parser_class_specifier_1): Implement delayed parsing of
2524 noexcept-specifiers.
2525 (cp_parser_save_noexcept): New.
2526 (cp_parser_late_noexcept_specifier): New.
2527 (noexcept_override_late_checks): New.
2528 (cp_parser_noexcept_specification_opt): Add FRIEND_P parameter. Call
2529 cp_parser_save_noexcept instead of the normal processing if needed.
2530 (cp_parser_exception_specification_opt): Add FRIEND_P parameter and
2531 pass it to cp_parser_noexcept_specification_opt.
2532 (cp_parser_save_member_function_body): Fix comment.
2533 (cp_parser_save_default_args): Maybe save the noexcept-specifier to
2535 (cp_parser_transaction): Update call to
2536 cp_parser_noexcept_specification_opt.
2537 (cp_parser_transaction_expression): Likewise.
2538 * parser.h (cp_unparsed_functions_entry): Add new field to carry
2539 a noexcept-specifier.
2540 * pt.c (dependent_type_p_r): Handle unparsed noexcept expression.
2541 * search.c (maybe_check_overriding_exception_spec): New function, broken
2543 (check_final_overrider): ...here. Call
2544 maybe_check_overriding_exception_spec.
2545 * tree.c (canonical_eh_spec): Handle UNPARSED_NOEXCEPT_SPEC_P.
2546 (cp_tree_equal): Handle DEFAULT_ARG.
2548 PR c++/90881 - bogus -Wunused-value in unevaluated context.
2549 * cvt.c (convert_to_void): Don't emit unused warnings in
2550 an unevaluated context.
2552 2019-06-22 Paolo Carlini <paolo.carlini@oracle.com>
2554 * decl.c (grokdeclarator): Use id_loc, typespec_loc, and
2555 locations[ds_storage_class] in a few additional places.
2557 2019-06-21 Paolo Carlini <paolo.carlini@oracle.com>
2561 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2565 * call.c (build_over_call): Devirtualize when the final overrider
2566 comes from the base.
2568 2019-06-21 Marek Polacek <polacek@redhat.com>
2570 PR c++/61490 - qualified-id in friend function definition.
2571 * decl.c (grokdeclarator): Diagnose qualified-id in friend function
2572 definition. Improve location for diagnostics of friend functions.
2574 PR c++/60223 - ICE with T{} in non-deduced context.
2575 * pt.c (unify): Allow COMPOUND_LITERAL_P in a non-deduced context.
2577 PR c++/64235 - missing syntax error with invalid alignas.
2578 * parser.c (cp_parser_std_attribute_spec): Commit to tentative parse
2579 if there's a missing close paren.
2581 PR c++/90490 - fix decltype issues in noexcept-specifier.
2582 * except.c (build_noexcept_spec): Call
2583 instantiate_non_dependent_expr_sfinae before
2584 build_converted_constant_expr instead of calling
2585 instantiate_non_dependent_expr after it. Add
2586 processing_template_decl_sentinel.
2588 2019-06-21 Jakub Jelinek <jakub@redhat.com>
2591 * semantics.c (finish_omp_clauses): Don't reject references to
2592 incomplete types if processing_template_decl.
2594 2019-06-19 Marek Polacek <polacek@redhat.com>
2596 PR c++/60364 - noreturn after first decl not diagnosed.
2597 * decl.c (duplicate_decls): Give an error when a function is
2598 declared [[noreturn]] after its first declaration.
2599 * parser.c (cp_parser_std_attribute): Don't treat C++11 noreturn
2600 attribute as equivalent to GNU's.
2601 * tree.c (std_attribute_table): Add noreturn.
2603 2019-06-19 Jakub Jelinek <jakub@redhat.com>
2605 * cp-gimplify.c (cp_genericize_r): Handle OMP_CLAUSE_{IN,EX}CLUSIVE
2606 like OMP_CLAUSE_SHARED.
2608 2019-06-18 Jason Merrill <jason@redhat.com>
2610 * constexpr.c (cxx_eval_store_expression): Delay target evaluation.
2612 2019-06-18 Jason Merrill <jason@redhat.com>
2614 * constexpr.c (eval_and_check_array_index): Split out from...
2615 (cxx_eval_array_reference): ...here.
2616 (cxx_eval_store_expression): Use it here, too.
2617 (diag_array_subscript): Take location. Strip location wrapper.
2619 2019-06-18 Jason Merrill <jason@redhat.com>
2621 * constexpr.c (cxx_eval_constant_expression): Handle conversion from
2622 and then to the same type.
2624 2019-06-18 Jason Merrill <jason@redhat.com>
2626 * constexpr.c (unshare_constructor): Add MEM_STAT_DECL.
2628 2019-06-17 Jakub Jelinek <jakub@redhat.com>
2630 * semantics.c (finish_omp_clauses): For OMP_CLAUSE_REDUCTION_INSCAN
2631 set need_copy_assignment.
2633 2019-06-17 Marek Polacek <polacek@redhat.com>
2635 PR c++/83820 - excessive attribute arguments not detected.
2636 * parser.c (cp_parser_std_attribute): Detect excessive arguments.
2638 2019-06-17 Nathan Sidwell <nathan@acm.org>
2641 * name-lookup.c (lookup_type_scope_1): Calll qualify_lookup before
2644 2019-06-14 Marek Polacek <polacek@redhat.com>
2646 PR c++/90884 - stray note with -Wctor-dtor-privacy.
2647 * class.c (maybe_warn_about_overly_private_class): Guard the call to
2650 2019-06-12 Jason Merrill <jason@redhat.com>
2652 PR c++/85552 - wrong instantiation of dtor for DMI.
2653 * typeck2.c (digest_nsdmi_init): Set tf_no_cleanup for direct-init.
2655 2019-06-13 Paolo Carlini <paolo.carlini@oracle.com>
2657 * decl.c (grokdeclarator): Use id_loc in five additional places
2658 in the last part of the function.
2660 2019-06-13 Paolo Carlini <paolo.carlini@oracle.com>
2662 * decl.c (grokdeclarator): Move further up the declaration of
2663 id_loc, use it immediately, update its value after the loop
2664 over declarator, use it again in the final part of function;
2665 improve locations of error messages about multiple data types
2666 and conflicting specifiers.
2668 2019-06-13 Richard Biener <rguenther@suse.de>
2671 * typeck2.c (split_nonconstant_init_1): Properly count
2672 num_split_elts, optimize single constructor elt removal.
2674 2019-06-12 Marek Polacek <polacek@redhat.com>
2676 PR c++/66999 - 'this' captured by reference.
2677 * parser.c (cp_parser_lambda_introducer): Reject `&this'. Use
2678 cp_lexer_nth_token_is instead of cp_lexer_peek_nth_token.
2680 PR c++/90825 - endless recursion when evaluating sizeof.
2681 PR c++/90832 - endless recursion when evaluating sizeof.
2682 * constexpr.c (cxx_eval_constant_expression): Don't recurse on the
2683 result of fold_sizeof_expr if is returns a SIZEOF_EXPR.
2684 * typeck.c (cxx_sizeof_expr): Only return a SIZEOF_EXPR if the operand
2685 is instantiation-dependent.
2687 PR c++/90736 - bogus error with alignof.
2688 * constexpr.c (adjust_temp_type): Use cv_unqualified type.
2690 2019-06-11 Matthew Beliveau <mbelivea@redhat.com>
2692 PR c++/90449 - add -Winaccessible-base option.
2693 * class.c (warn_about_ambiguous_bases): Changed name to:
2694 maybe_warn_about_inaccessible_bases.
2695 (maybe_warn_about_inaccessible_bases): Implemented new
2696 Winaccessible-base warning option for both direct and virtual
2698 (layout_class_type): Call to warn_about_ambiguous_bases changed to fit
2701 2019-06-11 Richard Biener <rguenther@suse.de>
2704 * typeck2.c (split_nonconstant_init_1): Avoid ordered remove
2705 from CONSTRUCTOR by marking to remove elements and doing all
2706 of them in a O(n) scan.
2708 2019-06-11 Jakub Jelinek <jakub@redhat.com>
2711 * init.c (constant_value_1): Handle VECTOR_CST DECL_INITIAL for
2712 !DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P decls like CONSTRUCTOR.
2714 2019-06-11 Martin Liska <mliska@suse.cz>
2717 * pt.c (init_template_processing): Disable hash table
2718 sanitization for decl_specializations and type_specializations.
2720 2019-06-10 Jason Merrill <jason@redhat.com>
2722 * constexpr.c (free_constructor): New.
2723 (cxx_eval_call_expression): Free parameter value CONSTRUCTORs.
2725 * constexpr.c (unshare_constructor): Only unshare if T is itself a
2727 (cxx_eval_call_expression): Don't call it on the result here.
2729 Reduce constexpr_call memory consumption.
2730 * constexpr.c (cxx_bind_parameters_in_call): Use TREE_VEC rather
2732 (constexpr_call_hasher::equal, cxx_bind_parameters_in_call)
2733 (cxx_eval_call_expression): Adjust.
2735 2019-06-10 Jakub Jelinek <jakub@redhat.com>
2737 * parser.c (cp_parser_omp_clause_reduction): Don't sorry_at on inscan
2739 (cp_parser_omp_scan_loop_body): New function.
2740 (cp_parser_omp_for_loop): Call cp_parser_omp_scan_loop_body if there
2741 are inscan reduction clauses.
2742 (cp_parser_pragma): Reject PRAGMA_OMP_SCAN.
2743 * semantics.c (finish_omp_clauses): Reject mixing inscan with
2744 non-inscan reductions on the same construct, or inscan reductions with
2745 ordered or schedule clauses, or inscan array reductions.
2746 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_{IN,EX}CLUSIVE.
2747 (tsubst_expr): Handle OMP_SCAN.
2749 2019-06-07 Jason Merrill <jason@redhat.com>
2751 * constexpr.c (cxx_eval_constant_expression): Call
2752 STRIP_ANY_LOCATION_WRAPPER early.
2753 [CONVERT_EXPR]: Don't build anything for conversion to void.
2754 [ADDR_EXPR]: ggc_free unused ADDR_EXPR.
2756 2019-06-05 Martin Sebor <msebor@redhat.com>
2759 * typeck.c (maybe_warn_about_returning_address_of_local): Only
2760 consider functions returning pointers as candidates for
2761 -Wreturn-local-addr.
2763 2019-06-05 Paolo Carlini <paolo.carlini@oracle.com>
2765 * decl.c (smallest_type_location): New.
2766 (check_special_function_return_type): Use it.
2767 (grokdeclarator): Lkewise.
2769 2019-06-05 Paolo Carlini <paolo.carlini@oracle.com>
2771 * decl.c (grokdeclarator): Use locations[ds_friend]
2774 2019-06-05 Martin Sebor <msebor@redhat.com>
2776 * call.c (build_conditional_expr_1): Adjust quoting and hyphenation.
2777 (convert_like_real): Same.
2778 (convert_arg_to_ellipsis): Same.
2779 * constexpr.c (diag_array_subscript): Same.
2780 * constraint.cc (diagnose_trait_expression): Same.
2781 * cvt.c (ocp_convert): Same.
2782 * decl.c (start_decl): Same.
2783 (check_for_uninitialized_const_var): Same.
2785 (check_special_function_return_type): Same.
2786 (finish_enum_value_list): Same.
2787 (start_preparsed_function): Same.
2788 * parser.c (cp_parser_decl_specifier_seq): Same.
2789 * typeck.c (cp_build_binary_op): Same.
2790 (build_static_cast_1): Same.
2792 2019-06-04 Nina Dinka Ranns <dinka.ranns@gmail.com>
2794 PR c++/63149 - Wrong auto deduction from braced-init-list.
2795 * pt.c (listify_autos): use non cv qualified auto_node in
2796 std::initializer_list<auto>.
2798 2019-06-04 Paolo Carlini <paolo.carlini@oracle.com>
2800 * decl.c (grokdeclarator): Use declarator->id_loc in two
2803 2019-06-04 Nathan Sidwell <nathan@acm.org>
2805 * name-lookup.c (lookup_type_scope_1): Reimplement, handle local
2806 and namespace scopes separately.
2808 2019-06-04 Harald van Dijk <harald@gigawatt.nl>
2810 PR c++/60531 - Wrong error about unresolved overloaded function
2811 * typeck.c (cp_build_binary_op): See if overload can be resolved.
2812 (cp_build_unary_op): Ditto.
2814 2019-06-04 Jason Merrill <jason@redhat.com>
2816 Reduce accumulated garbage in constexpr evaluation.
2817 * constexpr.c (cxx_eval_call_expression): ggc_free any bindings we
2819 (cxx_eval_increment_expression): ggc_free the MODIFY_EXPR after
2822 2019-06-04 Jakub Jelinek <jakub@redhat.com>
2824 * cp-tree.h (CP_OMP_CLAUSE_INFO): Allow for any clauses up to _condvar_
2825 instead of only up to linear.
2827 2019-06-03 Paolo Carlini <paolo.carlini@oracle.com>
2829 * parser.c (cp_parser_unqualified_id): Use build_min_nt_loc in
2832 2019-06-01 Ville Voutilainen <ville.voutilainen@gmail.com>
2835 * class.c (fixup_type_variants): Handle CLASSTYPE_FINAL.
2837 2019-05-31 Nathan Sidwell <nathan@acm.org>
2839 * cp-tree.h (IDENTIFIER_LAMBDA_P): New.
2841 (LAMBDA_TYPE_P, TYPE_UNNAMED_P): Likewise.
2842 (LAMBDANAME_PREFIX, LAMBDANAME_FORMAT): Delete.
2843 (make_lambda_name): Don't declare.
2844 * error.c (dump_aggr_type): Check for lambdas before other
2846 * lambda.c (begin_lambda_type): Use make_anon_name.
2847 * cp-lang.c (cxx_dwarf_name): Lambda names smell anonymous.
2848 * mangle.c (write_local_name): Likewise.
2849 * name-lookup.c (lambda_cnt, make_lambda_name): Delete.
2851 2019-05-30 Marek Polacek <polacek@redhat.com>
2853 * cp-tree.h (TYPE_HAS_NONTRIVIAL_DESTRUCTOR): Fix a typo.
2855 2019-05-31 Paolo Carlini <paolo.carlini@oracle.com>
2857 * decl.c (grokdeclarator): Use declarator->id_loc in five
2860 2019-05-29 Jakub Jelinek <jakub@redhat.com>
2863 * tree.c (lvalue_kind): Return clk_none for expressions with
2866 2019-05-29 Paolo Carlini <paolo.carlini@oracle.com>
2869 * parser.c (cp_parser_sizeof_operand): When the type-id production
2870 did not work out commit to the tentative parse.
2872 2019-05-29 Jakub Jelinek <jakub@redhat.com>
2874 P1091R3 - Extending structured bindings to be more like var decls
2875 P1381R1 - Reference capture of structured bindings
2876 * decl.c (cp_maybe_mangle_decomp): Handle TREE_STATIC decls even at
2878 (cp_finish_decomp): Copy over various decl properties from decl to
2879 v[i] in the tuple case.
2880 (grokdeclarator): Allow static, thread_local and __thread for C++2a
2881 and use pedwarn instead of error for older standard revisions.
2882 Make other structured binding diagnostic messages more i18n friendly.
2884 2019-05-28 Nathan Sidwell <nathan@acm.org>
2886 * decl.c (duplicate_decls): Assert a template newdecl has no
2889 2019-05-28 Marek Polacek <polacek@redhat.com>
2891 PR c++/90548 - ICE with generic lambda and empty pack.
2892 * pt.c (tsubst_copy_and_build): Handle pack expansion properly.
2894 2019-05-28 Nathan Sidwell <nathan@acm.org>
2896 * cp-tree.h (make_anon_name): Drop declaration.
2897 (TYPE_UNNAMED_P): Use IDENTIFIER_ANON_P.
2898 * cp-lang.c (cxx_dwarf_name): Likewise.
2899 * class.c (find_flexarrays): Likewise.
2900 * decl.c (name_unnamed_type, xref_tag_1): Likewise.
2901 * error.c (dump_aggr_type): Likewise.
2902 * pt.c (push_template_decl_real): Likewise.
2903 * name-lookup.c (consider_binding_level): Likewise.
2904 (anon_cnt, make_anon_name): Delete.
2906 2019-05-25 Marek Polacek <polacek@redhat.com>
2908 PR c++/90572 - wrong disambiguation in friend declaration.
2909 * parser.c (cp_parser_constructor_declarator_p): Don't allow missing
2910 typename for friend declarations.
2912 2019-05-23 Jonathan Wakely <jwakely@redhat.com>
2914 * cp-tree.h (CP_AGGREGATE_TYPE_P): Fix whitespace.
2916 * init.c (std_placement_new_fn_p): Remove outdated TODO comment that
2917 was resolved by r254694.
2919 2019-05-22 Jason Merrill <jason@redhat.com>
2921 PR c++/20408 - unnecessary code for empty struct.
2922 * call.c (build_call_a): Use simple_empty_class_p.
2924 PR c++/86485 - -Wmaybe-unused with empty class ?:
2925 * cp-gimplify.c (simple_empty_class_p): Also true for MODIFY_EXPR.
2927 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2929 * parser.c (cp_parser_template_declaration_after_parameters): Use
2930 DECL_SOURCE_LOCATION in literal operator template errors.
2932 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2936 * call.c (build_over_call): Devirtualize when the final overrider
2937 comes from the base.
2939 2019-05-21 Nathan Sidwell <nathan@acm.org>
2941 * name-lookup.c (do_nonmember_using_decl): Drop INSERT_P
2942 parameter. Document.
2943 (finish_nonmember_using_decl): Adjust do_nonmember_using_decl
2944 calls. Remove stray FIXME comment.
2946 * name-lookup.h (struct cp_binding_level): Drop usings field.
2947 (finish_namespace_using_decl, finish_local_using_decl): Replace with ...
2948 (finish_nonmember_using_decl): ... this.
2949 * name-lookup.c (push_using_decl_1, push_using_decl):
2950 (do_nonmember_using_decl): ... here. Add INSERT_P arg. Reimplement.
2951 (validate_nonmember_using_decl, finish_namespace_using_decl)
2952 (finish_local_using_decl): Replace with ...
2953 (finish_nonmember_using_decl): ... this. Drop DECL parm.
2954 * parser.c (cp_parser_using_declaration): Don't do lookup here.
2955 * pt.c (tsubst_expr): Do not do using decl lookup here.
2957 2019-05-21 Eric Botcazou <ebotcazou@adacore.com>
2959 * decl2.c (cpp_check) <IS_ASSIGNMENT_OPERATOR>: New case.
2961 2019-05-20 Marek Polacek <polacek@redhat.com>
2963 CWG 2094 - volatile scalars are trivially copyable.
2965 * tree.c (trivially_copyable_p): Don't check CP_TYPE_VOLATILE_P for
2968 2019-05-20 Marek Polacek <polacek@redhat.com>
2970 * pt.c (convert_template_argument): Add a diagnostic for the
2971 [temp.arg]/2 ambiguity case.
2973 * name-lookup.c (finish_using_directive): Don't issue inform() if the
2974 warning didn't trigger. Add quoting. Tweak the inform message.
2976 2019-05-20 Paolo Carlini <paolo.carlini@oracle.com>
2978 * cp-tree.h: Remove remnants of CONV_NONCONVERTING.
2980 2019-05-20 Nathan Sidwell <nathan@acm.org>
2982 * name-lookup.c (finish_namespace_using_directive)
2983 (finish_local_using_directive): Merge to ...
2984 (finish_using_directive): ... here. Handle both contexts.
2985 * name-lookup.h (finish_namespace_using_directive)
2986 (finish_local_using_directive): Replace with ...
2987 (finish_using_directive): ... this.
2988 * parser.c (cp_parser_using_directive): Adjust.
2989 * pt.c (tsubst_expr): Likewise.
2991 * cp-tree.h (struct lang_decl_ns): Remove usings field.
2992 (DECL_NAMESPACE_USING): Delete.
2993 * name-lookup.c (name_lookup::search_usings): Use namespace's
2995 (name_lookup::queue_namespae): Likewise.
2996 (finish_namespace_using_directive, push_namespace): Likewise.
2997 (has_using_namespace_std_directive): Just search the entire
3000 2019-05-20 Jonathan Wakely <jwakely@redhat.com>
3002 PR c++/90532 Ensure __is_constructible(T[]) is false
3003 * method.c (is_xible_helper): Return error_mark_node for construction
3004 of an array of unknown bound.
3006 2019-05-17 Thomas Schwinge <thomas@codesourcery.com>
3009 * parser.c (cp_finalize_oacc_routine): Rework checking if already
3010 marked with an OpenACC 'routine' directive.
3013 * parser.c (cp_parser_oacc_routine)
3014 (cp_parser_late_parsing_oacc_routine): Normalize order of clauses.
3015 (cp_finalize_oacc_routine): Call oacc_verify_routine_clauses.
3018 * parser.c (cp_finalize_oacc_routine): Refer to OpenACC 'routine'
3019 clauses from "omp declare target" attribute.
3021 2019-05-16 Martin Sebor <msebor@redhat.com>
3023 * call.c (print_z_candidate): Wrap diagnostic text in a gettext
3025 (print_z_candidates): Same.
3026 (build_conditional_expr_1): Quote keywords, operators, and types
3028 (build_op_delete_call): Same.
3029 (maybe_print_user_conv_context): Wrap diagnostic text in a gettext
3031 (convert_like_real): Same.
3032 (convert_arg_to_ellipsis): Quote keywords, operators, and types
3034 (build_over_call): Same.
3035 (joust): Break up an overlong line. Wrap diagnostic text in a gettext
3037 * constexpr.c (cxx_eval_check_shift_p): Spell out >= in English.
3038 (cxx_eval_constant_expression): Quote keywords, operators, and types
3040 (potential_constant_expression_1): Same.
3041 * cp-gimplify.c (cp_genericize_r): Same.
3042 * cvt.c (maybe_warn_nodiscard): Quote keywords, operators, and types
3044 (type_promotes_to): Same.
3045 * decl.c (check_previous_goto_1): Same.
3048 (cp_finish_decl): Avoid parenthesizing a sentence for consistency.
3049 (grok_op_properties): Quote keywords, operators, and types
3051 * decl2.c (grokfield): Same.
3052 (coerce_delete_type): Same.
3053 * except.c (is_admissible_throw_operand_or_catch_parameter): Same.
3054 * friend.c (do_friend): Quote C++ tokens.
3055 * init.c (build_new_1): Quote keywords, operators, and types
3057 (build_vec_delete_1): Same.
3058 (build_delete): Same.
3059 * lex.c (parse_strconst_pragma): Same.
3060 (handle_pragma_implementation): Same.
3061 (unqualified_fn_lookup_error): Same.
3062 * mangle.c (write_type): Same.
3063 * method.c (defaulted_late_check): Avoid two consecutive punctuators.
3064 * name-lookup.c (cp_binding_level_debug): Remove a trailing newline.
3065 (pop_everything): Same.
3066 * parser.c (cp_lexer_start_debugging): Quote a macro name.
3068 (cp_lexer_stop_debugging): Same.
3069 (cp_parser_userdef_numeric_literal): Quote a C++ header name
3071 (cp_parser_nested_name_specifier_opt): Quote keywords, operators,
3072 and types in diagnostics.
3073 (cp_parser_question_colon_clause): Same.
3074 (cp_parser_asm_definition): Same.
3075 (cp_parser_init_declarator): Same.
3076 (cp_parser_template_declaration_after_parameters): Avoid capitalizing
3077 a sentence in a diagnostic.
3078 (cp_parser_omp_declare_reduction): Quote keywords, operators, and types
3080 (cp_parser_transaction): Same.
3081 * pt.c (maybe_process_partial_specialization): Replace second call
3082 to permerror with inform for consistency with other uses.
3083 (expand_integer_pack): Quote keywords, operators, and types
3085 * rtti.c (get_typeid): Quote keywords, operators, and types
3087 (build_dynamic_cast_1): Same.
3088 * semantics.c (finish_asm_stmt): Same.
3089 (finish_label_decl): Same.
3090 (finish_bases): Same.
3091 (finish_offsetof): Same.
3092 (cp_check_omp_declare_reduction): Same.
3093 (finish_decltype_type): Same.
3094 * tree.c (handle_init_priority_attribute): Same. Add detail
3096 (maybe_warn_zero_as_null_pointer_constant): Same.
3097 * typeck.c (cp_build_binary_op): Quote keywords, operators, and types
3099 (cp_build_unary_op): Same.
3100 (check_for_casting_away_constness): Same.
3101 (build_static_cast): Same.
3102 (build_const_cast_1): Same.
3103 (maybe_warn_about_returning_address_of_local): Same.
3104 (check_return_expr): Same.
3105 * typeck2.c (abstract_virtuals_error_sfinae): Same.
3106 (digest_init_r): Replace a tab with spaces in a diagnostic.
3107 (build_functional_cast): Quote keywords, operators, and types
3110 2019-05-15 Jakub Jelinek <jakub@redhat.com>
3113 * cp-gimplify.c (genericize_cp_loop): Emit a DEBUG_BEGIN_STMT
3114 before the condition (or if missing or constant non-zero at the end
3115 of the loop. Emit a DEBUG_BEGIN_STMT before the increment expression
3116 if any. Don't call protected_set_expr_location on incr if it already
3119 2019-05-15 Marek Polacek <polacek@redhat.com>
3121 CWG 2096 - constraints on literal unions.
3122 * class.c (check_field_decls): Initialize booleans directly. A union
3123 is literal if at least one of its non-static data members is of
3124 non-volatile literal type.
3126 2019-05-15 Paolo Carlini <paolo.carlini@oracle.com>
3128 * cp-tree.h (REFERENCE_VLA_OK): Remove.
3129 * lambda.c (build_capture_proxy): Remove use of the above.
3131 2019-05-15 Paolo Carlini <paolo.carlini@oracle.com>
3133 * call.c (perform_overload_resolution, build_new_method_call_1):
3134 Use OVL_P; remove redundant TEMPLATE_DECL checks.
3135 * decl.c (grokfndecl): Likewise.
3136 * mangle.c (write_expression): Likewise.
3137 * parser.c (cp_parser_template_id): Likewise.
3138 * pt.c (resolve_overloaded_unification, type_dependent_expression_p):
3140 * search.c (build_baselink): Likewise.
3141 * tree.c (is_overloaded_fn, dependent_name, maybe_get_fns): Likewise.
3143 2019-05-14 Paolo Carlini <paolo.carlini@oracle.com>
3145 PR preprocessor/90382
3146 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3149 2019-05-13 Jason Merrill <jason@redhat.com>
3151 Use releasing_vec more broadly.
3152 * cp-tree.h (struct releasing_vec): Replace get_ref method with
3154 (vec_safe_push, vec_safe_reserve, vec_safe_length, vec_safe_splice):
3155 Forwarding functions for releasing_vec.
3156 (release_tree_vector): Declare but don't define.
3157 * call.c (build_op_delete_call, build_temp, call_copy_ctor)
3158 (perform_direct_initialization_if_possible): Use releasing_vec.
3159 * constexpr.c (cxx_eval_vec_init_1, cxx_eval_store_expression):
3161 * cp-gimplify.c (cp_fold): Likewise.
3162 * cvt.c (force_rvalue, ocp_convert): Likewise.
3163 * decl.c (get_tuple_decomp_init): Likewise.
3164 * except.c (build_throw): Likewise.
3165 * init.c (perform_member_init, expand_default_init): Likewise.
3166 * method.c (do_build_copy_assign, locate_fn_flags): Likewise.
3167 * parser.c (cp_parser_userdef_char_literal)
3168 (cp_parser_userdef_numeric_literal)
3169 (cp_parser_userdef_string_literal)
3170 (cp_parser_perform_range_for_lookup)
3171 (cp_parser_range_for_member_function, cp_parser_omp_for_loop)
3172 (cp_parser_omp_for_loop_init): Likewise.
3173 * pt.c (tsubst_copy_and_build, do_class_deduction): Likewise.
3174 * semantics.c (calculate_direct_bases, calculate_bases)
3175 (finish_omp_barrier, finish_omp_flush, finish_omp_taskwait)
3176 (finish_omp_taskyield, finish_omp_cancel)
3177 (finish_omp_cancellation_point): Likewise.
3178 * tree.c (build_vec_init_elt, strip_typedefs, strip_typedefs_expr)
3179 (build_min_non_dep_op_overload): Likewise.
3180 * typeck.c (build_function_call_vec, cp_build_function_call_nary)
3181 (cp_build_modify_expr): Likewise.
3182 * typeck2.c (build_functional_cast): Likewise.
3184 2019-05-11 Paolo Carlini <paolo.carlini@oracle.com>
3186 * typeck.c (cp_build_function_call_vec): When mark_used fails
3187 unconditionally return error_mark_node.
3189 2019-05-10 Paolo Carlini <paolo.carlini@oracle.com>
3191 * decl.c (grokvardecl): Use an accurate location in error message
3192 about main as a global variable.
3194 2019-05-10 Paolo Carlini <paolo.carlini@oracle.com>
3196 * call.c (build_call_a): Use FUNC_OR_METHOD_TYPE_P.
3197 * cp-gimplify.c (cp_fold): Likewise.
3198 * cp-objcp-common.c (cp_type_dwarf_attribute): Likewise.
3199 * cp-tree.h (TYPE_OBJ_P, TYPE_PTROBV_P): Likewise.
3200 * cvt.c (perform_qualification_conversions): Likewise.
3201 * decl.c (grokdeclarator): Likewise.
3202 * decl2.c (build_memfn_type): Likewise.
3203 * mangle.c (canonicalize_for_substitution, write_type): Likewise.
3204 * parser.c (cp_parser_omp_declare_reduction): Likewise.
3205 * pt.c (check_explicit_specialization, uses_deducible_template_parms,
3206 check_cv_quals_for_unify, dependent_type_p_r): Likewise.
3207 * rtti.c (ptr_initializer): Likewise.
3208 * semantics.c (finish_asm_stmt, finish_offsetof,
3209 cp_check_omp_declare_reduction): Likewise.
3210 * tree.c (cp_build_qualified_type_real,
3211 cp_build_type_attribute_variant, cxx_type_hash_eq,
3212 cxx_copy_lang_qualifiers, cp_free_lang_data): Likewise.
3213 * typeck.c (structural_comptypes, convert_arguments,
3214 cp_build_addr_expr_1, unary_complex_lvalue, cp_build_c_cast,
3215 cp_build_modify_expr, comp_ptr_ttypes_real, type_memfn_rqual):
3218 2019-05-10 Marek Polacek <polacek@redhat.com>
3220 PR c++/78010 - bogus -Wsuggest-override warning on final function.
3221 * class.c (check_for_override): Don't warn for final functions.
3223 2019-05-10 Jakub Jelinek <jakub@redhat.com>
3226 * config-lang.in (gtfiles): Remove c-family/c-lex.c, add
3227 c-family/c-cppbuiltin.c.
3229 2019-05-09 Paolo Carlini <paolo.carlini@oracle.com>
3233 2018-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3235 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3238 2019-05-08 Nathan Sidwell <nathan@acm.org>
3240 Kill DECL_SAVED_FUNCTION_DATA .
3241 * cp-tree.h (language_function): Remove x_auto_return_pattern.
3242 (current_function_auto_return_pattern): Delete.
3243 (lang_decl_fn): Replace saved_language_function with
3244 saved_auto_return type.
3245 (DECL_SAVED_FUNCTION_DATA): Delete.
3246 (DECL_SAVED_AUTO_RETURN_TYPE): New.
3247 (FNDECL_USED_AUTO): Correct documentation.
3248 * decl.c (duplicate_decls): Adjust AUTO return handling.
3249 (start_preparsed_function): Replace
3250 current_function_auto_return_pattern with
3251 DECL_SAVED_AUTO_RETURN_TYPE. Remove DECL_SAVED_FUNCTION_DATA
3253 (finish_function): Likewise.
3254 (save_function_data): Delete.
3255 (fndecl_declared_return_type): Reimplement.
3256 * mangle.c (write_unqualified_name): Use DECL_SAVED_AUTO_RETURN_TYPE.
3257 * method.c (make_thunk, make_alias_for): Likewise.
3258 * parser.c (cp_parser_jump_statement): Likewise.
3259 * pt.c (do_auto_deduction): Likewise.
3260 * typeck.c (check_return_expr): Likewise.
3262 2019-05-06 Jason Merrill <jason@redhat.com>
3264 PR c++/90171 - reorganize usual_deallocation_fn_p
3265 * call.c (struct dealloc_info): New.
3266 (usual_deallocation_fn_p): Take a dealloc_info*.
3267 (aligned_deallocation_fn_p, sized_deallocation_fn_p): Remove.
3268 (build_op_delete_call): Adjust.
3270 2019-05-07 Jason Merrill <jason@redhat.com>
3272 PR c++/86485 - -Wmaybe-unused with empty class ?:
3273 * typeck.c (build_static_cast_1): Use cp_build_addr_expr.
3275 * pt.c (type_dependent_expression_p): A non-type template parm with
3276 a placeholder type is type-dependent.
3278 2019-05-06 Marek Polacek <polacek@redhat.com>
3280 PR c++/90265 - ICE with generic lambda.
3281 * pt.c (tsubst_copy_and_build): Use a dedicated variable for the last
3282 element in the vector.
3284 2019-05-03 Martin Liska <mliska@suse.cz>
3286 * call.c (build_aggr_conv): Use is_empty instead of
3287 elements () == 0 (and similar usages).
3288 * parser.c (cp_parser_lambda_introducer): Likewise.
3290 2019-05-02 Nathan Sidwell <nathan@acm.org>
3292 * semantics.c (finish_id_expression_1): Remove unreachable code.
3294 2019-05-01 Nathan Sidwell <nathan@acm.org>
3296 * name-lookup.h (get_class_binding_direct): Change final arg to
3298 (get_class_binding): Likewise.
3299 * name-lookup.c (get_class_binding_direct): Replace TYPE_OR_FNS
3300 arg with WANT_TYPE bool. Simplify.
3301 (get_class_binding): Adjust final arg.
3302 * decl.c (reshape_init_class): Adjust get_class_binding calls.
3304 2019-04-30 Nathan Sidwell <nathan@acm.org>
3306 * cp-objcp-common.c (cp_common_init_ts): Use MARK_TS_EXP for _EXPR
3307 nodes. Call c_common_init_ts.
3309 2019-04-29 Nathan Sidwell <nathan@acm.org>
3311 * decl.c (duplicate_decls): Add whitespace, move comments into
3313 * method.c (explain_implicit_non_constexpr): Refactor.
3314 * pt.c (check_explicit_specialization): Fix indentation.
3315 * semantics.c (process_outer_var_ref): Reformat.
3316 (finish_id_expression_1): Use STRIP_TEMPLATE.
3318 2019-04-26 Jonathan Wakely <jwakely@redhat.com>
3320 PR c++/90243 - orphaned note in uninstantiated constexpr function
3321 * decl.c (check_for_uninitialized_const_var): Suppress notes if no
3324 2019-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3327 * decl.c (grokdeclarator): Set type to error_mark_node
3328 upon error about template placeholder type non followed
3329 by a simple declarator-id.
3331 2019-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3333 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3336 2019-04-24 Jason Merrill <jason@redhat.com>
3338 PR c++/90227 - error with template parameter packs.
3339 * pt.c (coerce_template_parms): Do add empty pack when
3342 2019-04-24 Richard Biener <rguenther@suse.de>
3344 * call.c (null_ptr_cst_p): Order checks according to expensiveness.
3345 (conversion_null_warnings): Likewise.
3346 * typeck.c (same_type_ignoring_top_level_qualifiers_p): Return
3347 early if type1 == type2.
3349 2019-04-22 Jason Merrill <jason@redhat.com>
3351 PR c++/87366 - wrong error with alias template.
3352 * typeck.c (structural_comptypes): When comparing_specializations,
3353 aliases are unequal.
3354 (comptypes): When comparing_specializations, do structural
3357 2019-04-19 Jason Merrill <jason@redhat.com>
3359 PR c++/90190 - CTAD with list-constructor.
3360 * pt.c (do_class_deduction): Don't try the single element deduction
3361 if the single element is also a braced list.
3363 PR c++/90171 - ICE with destroying delete with size_t parm.
3364 * call.c (sized_deallocation_fn_p): New. Use it instead of
3365 second_parm_is_size_t in most cases.
3366 (second_parm_is_size_t): Don't check for aligned.
3368 2019-04-19 Paolo Carlini <paolo.carlini@oracle.com>
3371 * pt.c (fn_type_unification): When handling null explicit
3372 arguments do not special case non-parameter packs.
3374 2019-04-19 Jakub Jelinek <jakub@redhat.com>
3377 * pt.c (process_template_parm): Set decl to pushdecl result. If
3378 !is_non_type, also set parm to that.
3381 * decl.c (struct cp_switch): Remove outside_range_p member.
3382 (push_switch): Don't clear it.
3383 (pop_switch): Adjust c_do_switch_warnings caller.
3384 (finish_case_label): Adjust c_add_case_label caller.
3387 * decl.c (duplicate_decls): If remove is main variant and
3388 DECL_ORIGINAL_TYPE is some other type, remove a DECL_ORIGINAL_TYPE
3389 variant that has newdecl as TYPE_NAME if any.
3391 2019-04-18 Jason Merrill <jason@redhat.com>
3393 PR c++/87554 - ICE with extern template and reference member.
3394 * decl.c (cp_finish_decl): Don't set DECL_INITIAL of external vars.
3396 2019-04-17 Jason Merrill <jason@redhat.com>
3398 PR c++/90047 - ICE with enable_if alias template.
3399 * pt.c (tsubst_decl) [TYPE_DECL]: Don't put an erroneous decl in the
3400 hash table when we're in SFINAE context.
3402 2019-04-17 Marek Polacek <polacek@redhat.com>
3404 PR c++/90124 - bogus error with incomplete type in decltype.
3405 * typeck.c (build_class_member_access_expr): Check
3406 cp_unevaluated_operand.
3408 2019-04-12 Jakub Jelinek <jakub@redhat.com>
3411 * decl.c (duplicate_decls): When newdecl's type is its main variant,
3412 don't try to remove it from the variant list, but instead assert
3415 2019-04-12 Martin Sebor <msebor@redhat.com>
3419 * parser.c (cp_parser_has_attribute_expression): Handle assignment
3422 2019-04-12 Jason Merrill <jason@redhat.com>
3424 * call.c (null_member_pointer_value_p): Handle an empty CONSTRUCTOR
3427 2019-04-12 Marek Polacek <polacek@redhat.com>
3429 * except.c (build_noexcept_spec): Use build_converted_constant_bool_expr
3430 instead of perform_implicit_conversion_flags.
3432 PR c++/87603 - constexpr functions are no longer noexcept.
3433 * constexpr.c (is_sub_constant_expr): Remove unused function.
3434 * cp-tree.h (is_sub_constant_expr): Remove declaration.
3435 * except.c (check_noexcept_r): Don't consider a call to a constexpr
3438 2019-04-11 Jakub Jelinek <jakub@redhat.com>
3440 PR translation/90035
3441 * parser.h (struct cp_parser): Add
3442 type_definition_forbidden_message_arg member.
3443 * parser.c (cp_debug_parser): Print it.
3444 (cp_parser_check_type_definition): Pass
3445 parser->type_definition_forbidden_message_arg as second argument to
3447 (cp_parser_has_attribute_expression, cp_parser_sizeof_operand): Set
3448 parser->type_definition_forbidden_message_arg and use G_() with
3449 %qs for parser->type_definition_forbidden_message instead of
3450 building untranslatable message using concat.
3452 2019-04-09 Jakub Jelinek <jakub@redhat.com>
3454 PR translation/90011
3455 * typeck2.c (check_narrowing): Remove trailing space from diagnostics.
3457 2019-04-08 Marek Polacek <polacek@redhat.com>
3459 * typeck2.c (digest_init_r): Don't condition the object slicing warning
3462 2019-04-08 Paolo Carlini <paolo.carlini@oracle.com>
3465 * semantics.c (trait_expr_value): Don't use TYPE_NOTHROW_P
3466 when maybe_instantiate_noexcept fails.
3467 (classtype_has_nothrow_assign_or_copy_p): Likewise.
3468 * method.c (implicitly_declare_fn): Avoid passing error_mark_node
3469 to build_exception_variant.
3471 2019-04-05 Marek Polacek <polacek@redhat.com>
3473 PR c++/87145 - bogus error converting class type in template arg list.
3474 * pt.c (convert_nontype_argument): Don't call
3475 build_converted_constant_expr if it could involve calling a conversion
3476 function with a instantiation-dependent constructor as its argument.
3478 2019-04-05 Martin Sebor <msebor@redhat.com>
3481 * decl.c (reshape_init_array_1): Avoid treating empty strings
3482 as zeros in array initializers.
3483 Use trivial_type_p () instead of TYPE_HAS_TRIVIAL_DFLT().
3485 2019-04-04 Jason Merrill <jason@redhat.com>
3487 PR c++/89948 - ICE with break in statement-expr.
3488 * constexpr.c (cxx_eval_statement_list): Jumping out of a
3489 statement-expr is non-constant.
3491 2019-04-04 Jason Merrill <jason@redhat.com>
3493 PR c++/89966 - error with non-type auto tparm.
3494 * pt.c (do_auto_deduction): Clear tf_partial.
3496 2019-04-04 Jason Merrill <jason@redhat.com>
3498 PR c++/86986 - ICE with TTP with parameter pack.
3499 * pt.c (coerce_template_parameter_pack): Only look at the type of a
3500 non-type parameter pack.
3501 (fixed_parameter_pack_p_1): Don't recurse into the type of a
3502 non-type parameter pack.
3503 (coerce_template_template_parms): Call add_outermost_template_args.
3505 2019-04-04 Martin Sebor <msebor@redhat.com>
3511 * decl.c (reshape_init_array_1): Strip trailing zero-initializers
3512 from arrays of trivial type and known size.
3513 * mangle.c (write_expression): Convert braced initializer lists
3515 (write_expression): Trim trailing zero-initializers from arrays
3517 (write_template_arg_literal): Mangle strings the same as braced
3520 2019-04-03 Jason Merrill <jason@redhat.com>
3522 PR c++/81866 - ICE with member template and default targ.
3523 * pt.c (tsubst_template_decl): Handle getting a type from
3524 retrieve_specialization.
3526 PR c++/86586 - -fcompare-debug=-Wsign-compare.
3527 * typeck.c (cp_build_binary_op): Don't fold for -Wsign-compare.
3529 PR c++/89331 - ICE with offsetof in incomplete class.
3530 * semantics.c (finish_offsetof): Handle error_mark_node.
3531 * typeck.c (build_class_member_access_expr): Call
3532 complete_type_or_maybe_complain before converting to base.
3534 PR c++/89917 - ICE with lambda in variadic mem-init.
3535 * pt.c (make_pack_expansion): Change type_pack_expansion_p to false.
3537 2019-04-01 Jason Merrill <jason@redhat.com>
3539 PR c++/86946 - ICE with function call in template argument.
3541 * pt.c (iterative_hash_template_arg) [CALL_EXPR]: Use
3544 2019-04-01 Paolo Carlini <paolo.carlini@oracle.com>
3547 * pt.c (tsubst_copy): Deal with lookup_name not returing a variable.
3549 2019-03-31 Marek Polacek <polacek@redhat.com>
3551 PR c++/89852 - ICE with C++11 functional cast with { }.
3552 * constexpr.c (fold_non_dependent_expr_template): New static function
3554 (fold_non_dependent_expr): ...here.
3555 (fold_non_dependent_init): New function.
3556 * cp-tree.h (fold_non_dependent_init): Declare.
3557 * typeck2.c (massage_init_elt): Call fold_non_dependent_init instead
3558 of fold_non_dependent_expr. Don't call maybe_constant_init.
3560 2019-03-30 Jason Merrill <jason@redhat.com>
3562 PR c++/89744 - ICE with specialization of member class template.
3563 * pt.c (lookup_template_class_1): If the partial instantiation is
3564 explicitly specialized, adjust.
3565 (maybe_process_partial_specialization): Also adjust
3568 2019-03-29 Jakub Jelinek <jakub@redhat.com>
3571 * typeck.c: Include gimplify.h.
3572 (cp_build_modify_expr) <case COND_EXPR>: Unshare rhs before using it
3573 for second time. Formatting fixes.
3575 2019-03-29 Marek Polacek <polacek@redhat.com>
3577 PR c++/89876 - ICE with deprecated conversion.
3578 * call.c (convert_like_real): Only give warnings with tf_warning.
3580 2019-03-28 Marek Polacek <polacek@redhat.com>
3582 PR c++/89612 - ICE with member friend template with noexcept.
3583 * pt.c (maybe_instantiate_noexcept): For function templates, use their
3584 template result (function decl). Don't set up local specializations.
3585 Temporarily turn on processing_template_decl. Update the template type
3588 PR c++/89836 - bool constant expression and explicit conversions.
3589 * call.c (build_converted_constant_expr_internal): New function,
3591 (build_converted_constant_expr): ...this. New.
3592 (build_converted_constant_bool_expr): New.
3593 * cp-tree.h (build_converted_constant_bool_expr): Declare.
3594 * decl.c (build_explicit_specifier): Call
3595 build_converted_constant_bool_expr.
3597 2019-03-28 Jakub Jelinek <jakub@redhat.com>
3600 * constexpr.c (struct check_for_return_continue_data): New type.
3601 (check_for_return_continue): New function.
3602 (potential_constant_expression_1) <case SWITCH_STMT>: Walk
3603 SWITCH_STMT_BODY to find RETURN_EXPRs or CONTINUE_STMTs not nested
3604 in loop bodies and set *jump_target to that if found.
3606 2019-03-27 Jason Merrill <jason@redhat.com>
3608 PR c++/89831 - error with qualified-id in const member function.
3609 * semantics.c (finish_non_static_data_member): Use object cv-quals
3610 in scoped case, too.
3612 PR c++/89421 - ICE with lambda in template parameter list.
3613 * parser.c (cp_parser_lambda_expression): Also reject a lambda in a
3614 template parameter list before C++20.
3615 * pt.c (type_dependent_expression_p): True for LAMBDA_EXPR.
3616 * semantics.c (begin_class_definition): Restore error about defining
3617 non-lambda class in template parm list.
3619 2019-03-26 Jason Merrill <jason@redhat.com>
3621 PR c++/86932 - missed SFINAE with empty pack.
3622 * pt.c (coerce_template_parms): Don't add an empty pack if
3624 (fn_type_unification): Pass tf_partial to coerce_template_parms.
3626 PR c++/86429 - constexpr variable in lambda.
3629 * constexpr.c (cxx_eval_constant_expression): In a lambda function,
3630 try evaluating the captured variable directly.
3632 2019-03-26 Jakub Jelinek <jakub@redhat.com>
3635 * semantics.c (finish_omp_atomic): Add warning_sentinel for
3636 -Wunused-value around finish_expr_stmt call.
3638 2019-03-25 Paolo Carlini <paolo.carlini@oracle.com>
3642 * parser.c (cp_parser_binary_expression): Don't call cp_fully_fold
3643 to undo the disabling of warnings.
3645 2019-03-25 Jason Merrill <jason@redhat.com>
3647 PR c++/87748 - substitution failure error with decltype.
3648 * pt.c (most_specialized_partial_spec): Clear
3649 processing_template_decl.
3651 2019-03-25 Marek Polacek <polacek@redhat.com>
3653 PR c++/89214 - ICE when initializing aggregates with bases.
3654 * typeck2.c (digest_init_r): Warn about object slicing instead of
3657 PR c++/89705 - ICE with reference binding with conversion function.
3658 * call.c (reference_binding): If the result of the conversion function
3659 is a prvalue of non-class type, use the cv-unqualified type.
3661 2019-03-25 Nathan Sidwell <nathan@acm.org>
3663 * lambda.c (maybe_add_lambda_conv_op): Don't add to comdat group.
3665 2019-03-22 Jakub Jelinek <jakub@redhat.com>
3668 * cp-tree.h (get_tls_wrapper_fn): Remove declaration.
3669 (maybe_get_tls_wrapper_call): Declare.
3670 * decl2.c (get_tls_wrapper_fn): Make static.
3671 (maybe_get_tls_wrapper_call): New function.
3672 * typeck.c (build_class_member_access_expr): Handle accesses to TLS
3674 * semantics.c (finish_qualified_id_expr): Likewise.
3675 (finish_id_expression_1): Use maybe_get_tls_wrapper_call.
3676 * pt.c (tsubst_copy_and_build): Likewise.
3679 * constexpr.c (struct constexpr_ctx): Add constexpr_ops_count member.
3680 (cxx_eval_constant_expression): When not skipping, not constant class
3681 or location wrapper, increment *ctx->constexpr_ops_count and if it is
3682 above constexpr_loop_nest_limit, diagnose failure.
3683 (cxx_eval_outermost_constant_expr): Add constexpr_ops_count and
3684 initialize ctx.constexpr_ops_count to its address.
3685 (is_sub_constant_expr): Likewise.
3687 2019-03-21 Jakub Jelinek <jakub@redhat.com>
3690 * call.c (filed_in_pset): Change pset from hash_set<tree> * to
3691 hash_set<tree, true> &, adjust uses accordingly.
3692 (build_aggr_conv): Change pset from hash_set<tree> *
3693 to hash_set<tree, true>. Replace goto fail; with return NULL;,
3697 * parser.c (cp_parser_lambda_introducer): Add ids and first_capture_id
3698 variables, check for duplicates in this function.
3699 * lambda.c (add_capture): Don't check for duplicates nor use
3701 (register_capture_members): Don't clear IDENTIFIER_MARKED here.
3703 2019-03-21 Paolo Carlini <paolo.carlini@oracle.com>
3706 * method.c (after_nsdmi_defaulted_late_checks): Avoid passing
3707 error_mark_node to comp_except_specs.
3709 2019-03-20 Jason Merrill <jason@redhat.com>
3711 PR c++/87480 - decltype of member access in default template arg
3712 * pt.c (type_unification_real): Accept a dependent result in
3715 2019-03-19 Martin Sebor <msebor@redhat.com>
3717 PR tree-optimization/89688
3718 * typeck2.c (store_init_value): Call braced_lists_to_string for more
3719 kinds of initializers.
3721 2019-03-18 Jason Merrill <jason@redhat.com>
3723 PR c++/89630 - ICE with dependent using-decl as template arg.
3724 * tree.c (cp_tree_equal): Always return false for USING_DECL.
3726 PR c++/89761 - ICE with sizeof... in pack expansion.
3727 * pt.c (argument_pack_element_is_expansion_p): Handle
3728 ARGUMENT_PACK_SELECT.
3730 PR c++/89640 - GNU attributes on lambda.
3731 * parser.c (cp_parser_lambda_declarator_opt): Allow GNU attributes.
3733 PR c++/89682 - wrong access error in default argument.
3734 * pt.c (tsubst_default_argument): Don't defer access checks.
3736 2019-03-18 Paolo Carlini <paolo.carlini@oracle.com>
3739 * semantics.c (finish_non_static_data_member): Check return value
3740 of context_for_name_lookup and immediately return error_mark_node
3743 2019-03-17 Jason Merrill <jason@redhat.com>
3745 PR c++/89571 - ICE with ill-formed noexcept on constructor.
3746 * pt.c (maybe_instantiate_noexcept): Only return false if defaulted.
3747 (regenerate_decl_from_template): Use it for noexcept-specs.
3749 2019-03-14 Jason Merrill <jason@redhat.com>
3751 * parser.c (cp_parser_decl_specifier_seq): Support C++20
3752 concept-definition syntax without 'bool'.
3754 2019-03-14 Jakub Jelinek <jakub@redhat.com>
3757 * semantics.c (finish_qualified_id_expr): Reject variable templates.
3760 * constexpr.c (struct constexpr_ctx): Change save_exprs type from
3761 hash_set<tree> to vec<tree>.
3762 (cxx_eval_call_expression): Adjust for save_exprs being a vec instead
3764 (cxx_eval_loop_expr): Likewise. Truncate the vector after each
3765 removal of SAVE_EXPRs from values.
3766 (cxx_eval_constant_expression) <case SAVE_EXPR>: Call safe_push
3767 method on save_exprs instead of add.
3769 2019-03-13 Jason Merrill <jason@redhat.com>
3771 PR c++/86521 - C++17 copy elision in initialization by constructor.
3772 * call.c (joust_maybe_elide_copy): New.
3775 2019-03-13 Marek Polacek <polacek@redhat.com>
3777 PR c++/88979 - further P0634 fix for constructors.
3778 * parser.c (cp_parser_decl_specifier_seq): Pass flags to
3779 cp_parser_constructor_declarator_p.
3780 (cp_parser_direct_declarator): Allow missing typename for constructor
3782 (cp_parser_constructor_declarator_p): Add FLAGS parameter. Pass it to
3783 cp_parser_type_specifier.
3785 PR c++/89686 - mixing init-capture and simple-capture in lambda.
3786 * parser.c (cp_parser_lambda_introducer): Give error when combining
3787 init-capture and simple-capture.
3789 PR c++/89660 - bogus error with -Wredundant-move.
3790 * typeck.c (maybe_warn_pessimizing_move): Only accept (T &) &arg
3791 as the std::move's argument. Don't call convert_for_initialization
3792 when warn_redundant_move isn't on.
3794 2019-03-11 Jason Merrill <jason@redhat.com>
3796 PR c++/86521 - wrong overload resolution with ref-qualifiers.
3797 * call.c (build_user_type_conversion_1): Don't use a conversion to a
3798 reference of the wrong rvalueness for direct binding.
3800 2019-03-11 Martin Liska <mliska@suse.cz>
3802 * cvt.c (build_expr_type_conversion): Wrap apostrophes
3803 in gcc internal format with %'.
3804 * decl.c (check_no_redeclaration_friend_default_args): Likewise.
3805 (grokfndecl): Likewise.
3806 * name-lookup.c (do_pushtag): Likewise.
3807 * pt.c (unify_parameter_deduction_failure): Likewise.
3808 (unify_template_deduction_failure): Likewise.
3810 2019-03-11 Martin Liska <mliska@suse.cz>
3812 * call.c (convert_arg_to_ellipsis): Wrap an option name
3813 in a string format message and fix GNU coding style.
3814 (build_over_call): Likewise.
3815 * class.c (check_field_decl): Likewise.
3816 (layout_nonempty_base_or_field): Likewise.
3817 * constexpr.c (cxx_eval_loop_expr): Likewise.
3818 * cvt.c (type_promotes_to): Likewise.
3819 * decl.c (cxx_init_decl_processing): Likewise.
3820 (mark_inline_variable): Likewise.
3821 (grokdeclarator): Likewise.
3822 * decl2.c (record_mangling): Likewise.
3823 * error.c (maybe_warn_cpp0x): Likewise.
3824 * except.c (doing_eh): Likewise.
3825 * mangle.c (maybe_check_abi_tags): Likewise.
3826 * parser.c (cp_parser_diagnose_invalid_type_name): Likewise.
3827 (cp_parser_userdef_numeric_literal): Likewise.
3828 (cp_parser_primary_expression): Likewise.
3829 (cp_parser_unqualified_id): Likewise.
3830 (cp_parser_pseudo_destructor_name): Likewise.
3831 (cp_parser_builtin_offsetof): Likewise.
3832 (cp_parser_lambda_expression): Likewise.
3833 (cp_parser_lambda_introducer): Likewise.
3834 (cp_parser_lambda_declarator_opt): Likewise.
3835 (cp_parser_selection_statement): Likewise.
3836 (cp_parser_init_statement): Likewise.
3837 (cp_parser_decomposition_declaration): Likewise.
3838 (cp_parser_function_specifier_opt): Likewise.
3839 (cp_parser_static_assert): Likewise.
3840 (cp_parser_simple_type_specifier): Likewise.
3841 (cp_parser_namespace_definition): Likewise.
3842 (cp_parser_using_declaration): Likewise.
3843 (cp_parser_ctor_initializer_opt_and_function_body): Likewise.
3844 (cp_parser_initializer_list): Likewise.
3845 (cp_parser_type_parameter_key): Likewise.
3846 (cp_parser_member_declaration): Likewise.
3847 (cp_parser_try_block): Likewise.
3848 (cp_parser_std_attribute_spec): Likewise.
3849 (cp_parser_requires_clause_opt): Likewise.
3850 * pt.c (check_template_variable): Likewise.
3851 (check_default_tmpl_args): Likewise.
3852 (push_tinst_level_loc): Likewise.
3853 (instantiate_pending_templates): Likewise.
3854 (invalid_nontype_parm_type_p): Likewise.
3855 * repo.c (get_base_filename): Likewise.
3856 * rtti.c (typeid_ok_p): Likewise.
3857 (build_dynamic_cast_1): Likewise.
3858 * tree.c (maybe_warn_parm_abi): Likewise.
3860 2019-03-08 Jakub Jelinek <jakub@redhat.com>
3863 * parser.c (cp_parser_template_declaration_after_parameters): Avoid
3864 one space before " at the end of line and another after " on another
3865 line in a string literal.
3867 PR tree-optimization/89550
3868 * semantics.c (maybe_convert_cond): Only set TREE_NO_WARNING if
3869 warning_at returned true.
3870 * decl2.c (c_parse_final_cleanups): Likewise.
3871 * typeck.c (convert_for_assignment): Likewise.
3872 * decl.c (finish_function): Likewise.
3875 * parser.c (cp_parser_asm_definition): Just warn instead of error
3876 on volatile qualifier outside of function body.
3879 * constexpr.c (potential_constant_expression_1): Reject
3880 REINTERPRET_CAST_P NOP_EXPRs.
3883 * call.c (joust): Call print_z_candidate only if pedwarn returned
3886 2019-03-07 Jason Merrill <jason@redhat.com>
3888 PR c++/88123 - lambda and using-directive.
3889 * name-lookup.c (op_unqualified_lookup)
3890 (maybe_save_operator_binding, discard_operator_bindings)
3891 (push_operator_bindings): New.
3892 * typeck.c (build_x_binary_op, build_x_unary_op): Call
3893 maybe_save_operator_binding.
3894 * decl.c (start_preparsed_function): Call push_operator_bindings.
3895 * tree.c (cp_free_lang_data): Call discard_operator_bindings.
3897 PR c++/88820 - ICE with CTAD and member template used in DMI.
3898 * pt.c (do_class_deduction): Handle parm used as its own arg.
3900 2019-03-07 Jakub Jelinek <jakub@redhat.com>
3903 * parser.c (cp_parser_asm_definition): Parse asm qualifiers even
3904 at toplevel, but diagnose them.
3906 2019-03-06 Jason Merrill <jason@redhat.com>
3908 PR c++/89381 - implicit copy and using-declaration.
3909 * class.c (classtype_has_move_assign_or_move_ctor_p): Don't consider
3910 op= brought in by a using-declaration.
3912 2019-03-06 Jakub Jelinek <jakub@redhat.com>
3915 * init.c (build_value_init_noctor): Ignore flexible array members.
3917 2019-03-06 Jason Merrill <jason@redhat.com>
3919 PR c++/89576 - if constexpr of lambda capture.
3920 * semantics.c (maybe_convert_cond): Do convert a non-dependent
3921 condition in a template.
3922 * typeck.c (condition_conversion): Handle being called in a
3925 2019-03-06 Marek Polacek <polacek@redhat.com>
3927 PR c++/87378 - bogus -Wredundant-move warning.
3928 * typeck.c (maybe_warn_pessimizing_move): See if the maybe-rvalue
3929 overload resolution would actually succeed.
3931 2019-03-05 Jason Merrill <jason@redhat.com>
3933 * class.c (is_really_empty_class): Add ignore_vptr parm.
3934 (trivial_default_constructor_is_constexpr): Pass it.
3935 * call.c (build_over_call): Pass it.
3936 * constexpr.c (cxx_eval_constant_expression): Pass it instead of
3937 checking TYPE_POLYMORPHIC_P.
3938 (cxx_eval_component_reference, potential_constant_expression_1):
3940 * cp-gimplify.c (simple_empty_class_p): Pass it.
3941 * init.c (expand_aggr_init_1): Pass it.
3943 2019-03-04 Paolo Carlini <paolo.carlini@oracle.com>
3946 * parser.c (cp_parser_class_head): Reject TYPE_BEING_DEFINED too.
3948 2019-03-04 Jakub Jelinek <jakub@redhat.com>
3951 * call.c (field_in_pset): New function.
3952 (build_aggr_conv): Handle CONSTRUCTOR_IS_DESIGNATED_INIT correctly.
3954 2019-03-02 Jakub Jelinek <jakub@redhat.com>
3957 * cp-tree.h (CONSTRUCTOR_IS_DESIGNATED_INIT): Define.
3958 * parser.c (cp_parser_braced_list): Adjust cp_parser_initializer_list
3959 caller, set CONSTRUCTOR_IS_DESIGNATED_INIT.
3960 (cp_parser_initializer_list): Add designated parameter, set *designated
3961 to a bool whether any designators were parsed.
3962 * decl.c (reshape_init): Copy over CONSTRUCTOR_IS_DESIGNATED_INIT if
3964 * pt.c (tsubst_copy_and_build): Likewise.
3965 * call.c (implicit_conversion): If CONSTRUCTOR_IS_DESIGNATED_INIT,
3966 don't call build_list_conv, nor build_complex_conv, nor attempt to
3967 convert a single element initializer to scalar.
3969 2019-03-01 Marek Polacek <polacek@redhat.com>
3971 PR c++/89537 - missing location for error with non-static member fn.
3972 * call.c (resolve_args): Use EXPR_LOCATION.
3973 * typeck.c (build_class_member_access_expr): Use input_location.
3975 PR c++/89532 - ICE with incomplete type in decltype.
3976 * semantics.c (finish_compound_literal): Return error_mark_node
3977 if digest_init_flags returns error_mark_node.
3979 2019-03-01 Jakub Jelinek <jakub@redhat.com>
3981 Implement P1002R1, Try-catch blocks in constexpr functions
3983 * parser.c (cp_parser_ctor_initializer_opt_and_function_body):
3984 Diagnose constexpr ctor or function with function-try-block with
3985 pedwarn for c++17 and earlier. Formatting fix.
3986 (cp_parser_try_block): Use pedwarn instead of error and only for
3987 c++17 and earlier when try block appears in constexpr function.
3988 * constexpr.c (build_constexpr_constructor_member_initializers):
3989 Handle TRY_BLOCK here instead of erroring on it.
3991 2019-02-28 Jason Merrill <jason@redhat.com>
3993 PR c++/88183 - ICE with .* fold-expression.
3994 * pt.c (fold_expression) [DOTSTAR_EXPR]: Remove special handling.
3996 PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
3997 * class.c, lambda.c, pt.c: Revert earlier change.
3998 * lambda.c (add_capture): Don't special-case capture of dependent
4001 * name-lookup.c (print_binding_level): Print this_entity.
4003 2019-02-27 Marek Polacek <polacek@redhat.com>
4005 PR c++/88857 - ICE with value-initialization of argument in template.
4006 * call.c (convert_like_real): Don't call build_value_init in template.
4008 2019-02-27 Jason Merrill <jason@redhat.com>
4010 PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
4011 * semantics.c (process_outer_var_ref): Do capture dependent vars.
4012 * class.c (finish_struct): Only add TAG_DEFN if T is in
4013 current_function_decl.
4014 * lambda.c (vla_capture_type): Force the capture type out into the
4015 lambda's enclosing function.
4016 (add_capture): Pass in the lambda.
4017 * pt.c (tsubst_lambda_expr): complete_type a VLA capture type.
4019 2019-02-27 Marek Polacek <polacek@redhat.com>
4021 PR c++/89511 - ICE with using-declaration and unscoped enumerator.
4022 * parser.c (cp_parser_using_declaration): For an unscoped enum
4023 only use its context if it's not a function declaration.
4025 2019-02-27 Paolo Carlini <paolo.carlini@oracle.com>
4028 * method.c (process_subob_fn): When maybe_instantiate_noexcept
4029 returns false don't call merge_exception_specifiers.
4031 2019-02-27 Paolo Carlini <paolo.carlini@oracle.com>
4034 * parser.c (cp_parser_noexcept_specification_opt): Return NULL_TREE
4035 for a non-constant parsed expression.
4037 2019-02-26 Jakub Jelinek <jakub@redhat.com>
4040 * constexpr.c (cxx_eval_store_expression): When changing active union
4041 member, set no_zero_init.
4043 2019-02-23 Marek Polacek <polacek@redhat.com>
4045 PR c++/88294 - ICE with non-constant noexcept-specifier.
4046 * pt.c (maybe_instantiate_noexcept): Set up the list of local
4047 specializations. Set current_class_{ptr,ref}.
4049 2019-02-22 David Malcolm <dmalcolm@redhat.com>
4052 * parser.c (cp_parser_unqualified_id): Capture and use locations
4055 2019-02-22 Marek Polacek <polacek@redhat.com>
4057 PR c++/89420 - ICE with CAST_EXPR in explicit-specifier.
4058 * decl.c (build_explicit_specifier): Don't check
4059 processing_template_decl. Call instantiation_dependent_expression_p
4060 instead of value_dependent_expression_p. Call
4061 instantiate_non_dependent_expr_sfinae before
4062 build_converted_constant_expr instead of calling
4063 instantiate_non_dependent_expr after it. Add
4064 processing_template_decl_sentinel.
4066 2019-02-22 Thomas Schwinge <thomas@codesourcery.com>
4068 * parser.c (cp_parser_oacc_simple_clause): Remove parser formal
4069 parameter, move loc formal parameter to the front. Adjust all
4071 (cp_parser_oacc_shape_clause): Add loc formal parameter. Adjust
4074 2019-02-21 Jason Merrill <jason@redhat.com>
4076 PR c++/87685 - generic lambda 'this' capture error.
4077 * lambda.c (lambda_expr_this_capture): Change add_capture_p to int.
4078 (maybe_generic_this_capture): Pass -1.
4080 PR c++/88394 - ICE with VLA init-capture.
4081 * lambda.c (is_normal_capture_proxy): Check DECL_CAPTURED_VARIABLE.
4083 PR c++/88869 - C++17 ICE with CTAD and explicit specialization.
4084 * pt.c (do_class_deduction): Don't include explicit specialization
4087 PR c++/89422 - ICE with -g and lambda in default arg in template.
4088 * pt.c (tsubst_function_decl): SET_DECL_FRIEND_CONTEXT sooner.
4090 2019-02-21 Jason Merrill <jason@redhat.com>
4092 PR c++/88419 - C++17 ICE with class template arg deduction.
4093 * pt.c (make_template_placeholder): Set TYPE_CANONICAL after
4094 CLASS_PLACEHOLDER_TEMPLATE.
4096 2019-02-21 Jakub Jelinek <jakub@redhat.com>
4099 * constexpr.c (struct constexpr_fundef): Add parms and result members.
4100 (retrieve_constexpr_fundef): Adjust for the above change.
4101 (register_constexpr_fundef): Save constexpr body with copy_fn,
4102 temporarily set DECL_CONTEXT on DECL_RESULT before that.
4103 (get_fundef_copy): Change FUN argument to FUNDEF with
4104 constexpr_fundef * type, grab body and parms/result out of
4105 constexpr_fundef struct and temporarily change it for copy_fn calls
4107 (cxx_eval_builtin_function_call): For __builtin_FUNCTION temporarily
4108 adjust current_function_decl from ctx->call context. Test
4109 !potential_constant_expression instead of !is_constant_expression.
4110 (cxx_bind_parameters_in_call): Grab parameters from new_call. Undo
4111 convert_for_arg_passing changes for TREE_ADDRESSABLE type passing.
4112 (cxx_eval_call_expression): Adjust get_fundef_copy caller.
4113 (cxx_eval_conditional_expression): For IF_STMT, allow then or else
4114 operands to be NULL.
4115 (label_matches): Handle BREAK_STMT and CONTINUE_STMT.
4116 (cxx_eval_loop_expr): Add support for FOR_STMT, WHILE_STMT and DO_STMT.
4117 (cxx_eval_switch_expr): Add support for SWITCH_STMT.
4118 (cxx_eval_constant_expression): Handle IF_STMT, FOR_STMT, WHILE_STMT,
4119 DO_STMT, CONTINUE_STMT, SWITCH_STMT, BREAK_STMT and CONTINUE_STMT.
4120 For SIZEOF_EXPR, recurse on the result of fold_sizeof_expr. Ignore
4121 DECL_EXPR with USING_DECL operand.
4122 * lambda.c (maybe_add_lambda_conv_op): Build thisarg using
4123 build_int_cst to make it a valid constant expression.
4125 2019-02-20 Jason Merrill <jason@redhat.com>
4127 PR c++/88690 - C++17 ICE with empty base in aggregate.
4128 * typeck2.c (process_init_constructor_record): Skip trivial
4129 initialization of an empty base.
4131 2019-02-21 Richard Biener <rguenther@suse.de>
4134 * vtable-class-hierarchy.c (vtv_generate_init_routine): Do not
4135 make symtab process new functions here.
4137 2019-02-20 Jason Merrill <jason@redhat.com>
4139 PR c++/87921 - wrong error with inline static data member.
4140 * decl2.c (finish_static_data_member_decl): Don't set DECL_IN_AGGR_P
4141 for a non-template inline variable. Do nothing for an
4142 already-instantiated variable.
4143 (c_parse_final_cleanups): Check DECL_IN_AGGR_P without
4145 * decl.c (check_initializer): Likewise.
4146 (make_rtl_for_nonlocal_decl): Likewise.
4147 * pt.c (instantiate_decl): Likewise.
4148 * typeck2.c (store_init_value): Likewise.
4150 2019-02-20 Jakub Jelinek <jakub@redhat.com>
4153 * decl2.c (c_parse_final_cleanups): Move TREE_ASM_WRITTEN setting
4154 for flag_syntax_only from here...
4155 * semantics.c (expand_or_defer_fn_1): ... here.
4158 * decl.c (maybe_commonize_var): When clearing TREE_PUBLIC and
4159 DECL_COMMON, set DECL_INTERFACE_KNOWN.
4162 * constexpr.c (cxx_eval_store_expression): Diagnose changing of active
4163 union member for -std=c++17 and earlier.
4165 2019-02-19 Jason Merrill <jason@redhat.com>
4167 PR c++/87513 - 'sorry' mangling PMF template-id.
4168 * mangle.c (write_expression): Handle SCOPE_REF to BASELINK.
4170 2019-02-19 Jason Merrill <jason@redhat.com>
4172 PR c++/88380 - wrong-code with flexible array and NSDMI.
4173 * typeck2.c (process_init_constructor_record): Skip flexarrays.
4175 2019-02-20 will wray <wjwray@gmail.com>
4177 PR c++/88572 - wrong handling of braces on scalar init.
4178 * decl.c (reshape_init_r): Allow braces around scalar initializer
4179 within aggregate init. Reject double braced-init of scalar
4182 2019-02-20 Paolo Carlini <paolo.carlini@oracle.com>
4185 * pt.c (tsubst_init): Diagnose an initializer expanding to an
4186 empty list of expressions; tweak wrt dependent types.
4187 (regenerate_decl_from_template): For VAR_DECLs call tsubst_init
4188 instead of tsubst_expr.
4190 2019-02-19 Jason Merrill <jason@redhat.com>
4192 PR c++/88368 - wrong 'use of deleted function'
4193 * method.c (walk_field_subobs): Remember errors from get_nsdmi.
4194 (get_defaulted_eh_spec): Call push_tinst_level.
4195 * pt.c (maybe_instantiate_noexcept): Keep error_mark_node.
4196 * typeck2.c (merge_exception_specifiers): Handle error_mark_node.
4198 2019-02-19 Chung-Lin Tang <cltang@codesourcery.com>
4201 * parser.c (cp_parser_oacc_clause_wait): Add representation of wait
4202 clause without argument as 'wait (GOMP_ASYNC_NOVAL)', adjust comments.
4204 2019-02-19 Jakub Jelinek <jakub@redhat.com>
4207 * lambda.c (maybe_generic_this_capture): Don't check
4208 DECL_NONSTATIC_MEMBER_FUNCTION_P on USING_DECLs.
4211 * typeck.c (build_reinterpret_cast_1): Don't handle void to
4212 && conversion go through build_target_expr_with_type.
4215 * error.c (qualified_name_lookup_error): Only call
4216 suggest_alternative_in_scoped_enum if name is IDENTIFIER_NODE.
4218 2019-02-19 Tom Honermann <tom@honermann.net>
4220 * name-lookup.c (get_std_name_hint): Added u8string as a name hint.
4222 2019-02-18 Jason Merrill <jason@redhat.com>
4224 PR c++/89336 - multiple stores in constexpr stmt.
4225 * constexpr.c (cxx_eval_store_expression): Preevaluate scalar or
4228 * pt.c (check_explicit_specialization): If the declarator is a
4229 template-id, only check whether the arguments are dependent.
4231 Improve duplicate [[likely]] diagnostic.
4232 * parser.c (cp_parser_statement): Make attrs_loc a range. Pass it
4233 to process_stmt_hotness_attribute.
4234 * cp-gimplify.c (process_stmt_hotness_attribute): Take attrs_loc.
4235 (genericize_if_stmt): Use likely/unlikely instead of predictor_name.
4237 2019-02-17 Marek Polacek <polacek@redhat.com>
4239 PR c++/89217 - ICE with list-initialization in range-based for loop.
4240 * constexpr.c (unshare_constructor): No longer static.
4241 * cp-tree.h (unshare_constructor): Declare.
4242 * semantics.c (finish_compound_literal): When dealing with a
4243 non-dependent expression in a template, return the original
4244 expression. Pass LOOKUP_NO_NARROWING to digest_init_flags.
4246 2019-02-13 Marek Polacek <polacek@redhat.com>
4248 PR c++/89297 - ICE with OVERLOAD in template.
4249 * semantics.c (finish_compound_literal): Call
4250 instantiate_non_dependent_expr_sfinae.
4252 2019-02-13 Alexandre Oliva <aoliva@redhat.com>
4255 * cp-tree.h (USING_DECL_SCOPE): Use result rather than type.
4256 * name-lookup.c (strip_using_decl): Use USING_DECL_SCOPE.
4257 * search.c (protected_accessible_p): Follow USING_DECL_DECLS.
4258 (shared_member_p): Likewise.
4259 (lookup_member): Likewise.
4260 * decl.c (grok_special_member_properties): Skip USING_DECLs.
4261 * semantics.c (finish_omp_declare_simd_methods): Likewise.
4262 (finish_qualified_id_expr): Do not call shared_member_p with
4266 * pt.c (tsubst_lambda_expr): Avoid duplicate tsubsting.
4267 Move cp_evaluated resetting before signature tsubsting.
4268 (gen_elem_of_pack_expansion_instantiation): Separate local
4269 specializations per index.
4271 2019-02-13 David Malcolm <dmalcolm@redhat.com>
4274 * class.c (add_method): Drop destructor assertion.
4276 2019-02-13 Paolo Carlini <paolo.carlini@oracle.com>
4279 * decl.c (make_typename_type): Allow for TYPE_PACK_EXPANSION as
4280 context (the first argument).
4281 * pt.c (tsubst, case TYPENAME_TYPE): Handle TYPE_PACK_EXPANSION
4284 2019-02-12 Jason Merrill <jason@redhat.com>
4286 PR c++/89144 - link error with constexpr initializer_list.
4287 * call.c (convert_like_real) [ck_list]: Don't allocate a temporary
4288 array for an empty list.
4289 * typeck2.c (store_init_value): Don't use cxx_constant_init in a
4292 2019-02-11 Jason Merrill <jason@redhat.com>
4294 PR c++/89241 - ICE with __func__ in lambda in template.
4295 * pt.c (enclosing_instantiation_of): Also check
4296 instantiated_lambda_fn_p for the template context.
4298 2019-02-11 Marek Polacek <polacek@redhat.com>
4300 PR c++/89212 - ICE converting nullptr to pointer-to-member-function.
4301 * pt.c (tsubst_copy_and_build) <case CONSTRUCTOR>: Return early for
4302 null member pointer value.
4304 2019-02-11 Jakub Jelinek <jakub@redhat.com>
4307 * pt.c (convert_nontype_argument): Pass true as manifestly_const_eval
4308 to maybe_constant_value calls.
4310 2019-02-11 Marek Polacek <polacek@redhat.com>
4312 * typeck2.c (digest_init_r): Remove commented code.
4314 2019-02-11 Martin Sebor <msebor@redhat.com>
4317 * decl.c (compute_array_index_type_loc): Preserve signed sizes
4318 for diagnostics. Call valid_array_size_p instead of error.
4319 * init.c (build_new_1): Compute size for diagnostic. Call
4320 invalid_array_size_error
4321 (build_new): Call valid_array_size_p instead of error.
4323 2019-02-07 Alexandre Oliva <aoliva@redhat.com>
4326 * call.c (compare_ics): Deal with ck_aggr in either cs.
4328 2019-02-06 David Malcolm <dmalcolm@redhat.com>
4331 * call.c (get_location_for_expr_unwinding_for_system_header): New
4333 (conversion_null_warnings): Use it when getting locations for
4334 EXPR, effectively adding a call to
4335 get_location_for_expr_unwinding_for_system_header for
4336 -Wconversion-null and making use of EXPR_LOCATION for
4337 -Wzero-as-null-pointer-constant.
4339 2019-02-05 Jakub Jelinek <jakub@redhat.com>
4342 * optimize.c (maybe_thunk_body): Clear TREE_ADDRESSABLE on
4343 PARM_DECLs of the thunk.
4344 * lambda.c (maybe_add_lambda_conv_op): Likewise.
4346 2019-02-05 Marek Polacek <polacek@redhat.com>
4348 PR c++/89158 - by-value capture of constexpr variable broken.
4349 * call.c (convert_like_real) <case ck_user>: Call mark_exp_read
4350 instead of mark_rvalue_use.
4352 2019-02-05 Alexandre Oliva <aoliva@redhat.com>
4355 * pt.c (instantiates_primary_template_p): New.
4356 (type_dependent_expression_p): Use it.
4358 2019-02-01 Jason Merrill <jason@redhat.com>
4360 PR c++/88761 - ICE with reference capture of constant.
4361 * lambda.c (mark_const_cap_r): Do walk subtrees of DECL_EXPR for
4364 2019-02-01 Marek Polacek <polacek@redhat.com>
4366 PR c++/88325 - ICE with invalid out-of-line template member definition.
4367 * parser.c (cp_parser_class_name): Don't call make_typename_type
4370 2019-02-01 Jakub Jelinek <jakub@redhat.com>
4373 * parser.c (cp_parser_gnu_attributes_opt): Set ok to false
4374 if require_open failed.
4376 2019-01-31 Marek Polacek <polacek@redhat.com>
4378 PR c++/89083, c++/80864 - ICE with list initialization in template.
4379 * constexpr.c (adjust_temp_type): Use copy_node and change the type
4380 instead of using build_constructor.
4381 * decl.c (reshape_init_r): Don't reshape a digested initializer.
4382 Return the initializer for COMPOUND_LITERAL_P.
4384 PR c++/88983 - ICE with switch in constexpr function.
4385 * constexpr.c (cxx_eval_switch_expr): Use SWITCH_COND and SWITCH_BODY.
4386 (cxx_eval_constant_expression) <case COND_EXPR>: Don't look for the
4387 label in the else branch if we found it in the then branch.
4389 2019-01-30 Jason Merrill <jason@redhat.com>
4391 PR c++/88752 - ICE with lambda and constexpr if.
4392 * cp-tree.h (LAMBDA_EXPR_INSTANTIATED): New.
4393 * pt.c (tsubst_lambda_expr): Set it.
4394 (instantiated_lambda_fn_p): Check it.
4395 (enclosing_instantiation_of): Use it.
4397 2019-01-31 Jakub Jelinek <jakub@redhat.com>
4400 * cxx-pretty-print.c (pp_cxx_enumeration_constant): Print always as
4401 a C cast in pp_c_flag_gnu_v3 mode.
4403 2019-01-30 Jakub Jelinek <jakub@redhat.com>
4406 * lambda.c (is_capture_proxy): Don't return true for
4407 DECL_OMP_PRIVATIZED_MEMBER artificial vars.
4409 2019-01-30 Marek Polacek <polacek@redhat.com>
4411 PR c++/89119 - ICE with value-initialization in template.
4412 * pt.c (tsubst_copy_and_build): Handle RANGE_EXPR.
4414 2019-01-29 Jason Merrill <jason@redhat.com>
4416 PR c++/86943 - wrong code converting lambda to function pointer.
4417 * lambda.c (maybe_add_lambda_conv_op): Use a template-id in the
4418 call. Only forward parms for decltype.
4419 * pt.c (tsubst_copy_and_build) [CALL_EXPR]: Handle CALL_FROM_THUNK_P
4421 * typeck.c (check_return_expr): Don't mess with a thunk call.
4423 2019-01-28 Jason Merrill <jason@redhat.com>
4425 PR c++/89089 - ICE with [[no_unique_address]].
4426 PR c++/88865 - wrong layout with [[no_unique_address]].
4427 * class.c (check_field_decls): A potentially-overlapping field makes
4428 the class non-layout-POD, but not non-empty.
4429 (end_of_class): Always consider empty data members.
4430 (layout_class_type): Set DECL_SIZE for empty fields.
4432 2019-01-28 Marek Polacek <polacek@redhat.com>
4434 PR c++/88358 - name wrongly treated as type.
4435 * parser.c (cp_parser_direct_declarator): Don't assume a qualified-id
4436 in parameter-list is a type if the function's declarator-id is not
4439 2019-01-27 Marek Polacek <polacek@redhat.com>
4441 PR c++/88815 - narrowing conversion lost in decltype.
4442 PR c++/78244 - narrowing conversion in template not detected.
4443 * cp-tree.h (CONSTRUCTOR_IS_DEPENDENT): New.
4444 * pt.c (instantiation_dependent_r): Consider a CONSTRUCTOR with
4445 CONSTRUCTOR_IS_DEPENDENT instantiation-dependent.
4446 * semantics.c (finish_compound_literal): When the compound literal
4447 isn't instantiation-dependent and the type isn't type-dependent,
4448 fall back to the normal processing. Set CONSTRUCTOR_IS_DEPENDENT.
4450 PR c++/89024 - ICE with incomplete enum type.
4451 * call.c (standard_conversion): When converting an
4452 ARITHMETIC_TYPE_P to an incomplete type, return NULL.
4454 2019-01-25 Paolo Carlini <paolo.carlini@oracle.com>
4457 * call.c (build_op_delete_call): Implement 7.6.2.5/(10.1).
4458 * decl2.c (coerce_delete_type): Use build_pointer_type instead
4461 2019-01-24 Jason Merrill <jason@redhat.com>
4463 PR c++/89001 - mangling of reference temporaries
4464 * cp-tree.h (struct saved_scope): Add ref_temp_count.
4465 (current_ref_temp_count): New macro.
4466 * mangle.c (mangle_ref_init_variable): Use it.
4467 * typeck2.c (store_init_value): Clear it.
4468 * call.c (make_temporary_var_for_ref_to_temp): Copy public and
4471 2019-01-24 Jakub Jelinek <jakub@redhat.com>
4474 * semantics.c (finish_omp_cancel): Diagnose more than one if
4475 on #pragma omp cancel with different modifiers. Use
4476 maybe_convert_cond when not in template or build_x_binary_op
4479 2019-01-23 Marek Polacek <polacek@redhat.com>
4481 PR c++/88757 - qualified name treated wrongly as type.
4482 * parser.c (cp_parser_direct_declarator): Don't treat qualified-ids
4483 in parameter-list as types if name lookup for declarator-id didn't
4484 find one or more function templates.
4486 2019-01-23 Jakub Jelinek <jakub@redhat.com>
4489 * cp-gimplify.c (genericize_cp_loop): Call begin_bc_block only
4490 after genericizing cond and incr expressions.
4493 * cp-gimplify.c (genericize_switch_stmt): Move cond genericization
4494 before the begin_bc_block call.
4496 2019-01-21 Jason Merrill <jason@redhat.com>
4498 PR c++/87893 - constexpr ctor ICE on ARM.
4499 PR c++/88293 - ICE with comma expression.
4500 * constexpr.c (initialized_type): Don't shortcut non-void type.
4501 Handle COMPOUND_EXPR.
4502 (cxx_eval_outermost_constant_expr): Return early for void type.
4504 2019-01-21 Jakub Jelinek <jakub@redhat.com>
4507 * optimize.c (cxx_copy_decl): New function.
4508 (clone_body): Use it instead of copy_decl_no_change.
4511 * typeck.c (cp_build_binary_op): Don't instrument
4512 SANITIZE_POINTER_COMPARE if processing_template_decl.
4513 (pointer_diff): Similarly for SANITIZE_POINTER_SUBTRACT.
4515 2019-01-18 Jason Merrill <jason@redhat.com>
4517 PR c++/88875 - error with explicit list constructor.
4518 * call.c (reference_binding): Don't modify EXPR. Set
4519 need_temporary_p on the ck_user conversion for a temporary.
4520 (convert_like_real): Check it.
4522 2019-01-18 H.J. Lu <hongjiu.lu@intel.com>
4526 * call.c (convert_for_arg_passing): Upate the
4527 warn_for_address_or_pointer_of_packed_member call.
4528 * typeck.c (convert_for_assignment): Likewise.
4530 2019-01-17 Jason Merrill <jason@redhat.com>
4532 PR c++/86205 - ICE with ?: of throw and template-id.
4533 * pt.c (resolve_nondeduced_context_or_error): Split out from...
4534 * typeck.c (decay_conversion): ...here.
4535 * call.c (build_conditional_expr_1): Use it.
4537 PR c++/86740, ICE with constexpr if and nested generic lambdas.
4538 * tree.c (cp_walk_subtrees): Handle LAMBDA_EXPR.
4540 2019-01-17 Paolo Carlini <paolo.carlini@oracle.com>
4542 * decl.c (grokdeclarator): Use typespec_loc in error messages
4543 about 'auto' and trailing return type.
4545 2019-01-17 David Malcolm <dmalcolm@redhat.com>
4548 * class.c (add_method): Don't use DECL_DESTRUCTOR_P on
4551 2019-01-17 Nathan Sidwell <nathan@acm.org>
4554 * semantics.c (process_outer_var_ref): Only skip dependent types
4557 2019-01-17 Alexandre Oliva <aoliva@redhat.com>
4560 * cp-tree.h (saved_scope): Add suppress_location_wrappers.
4561 * name-lookup.c (do_push_to_top_level): Save and reset it.
4562 (do_pop_from_top_level): Restore it.
4565 * pt.c (make_template_placeholder): Use auto_identifier.
4566 (is_auto): Drop CLASS_PLACEHOLDER_TEMPLATE test.
4567 * error.c (dump_type): Handle template placeholders.
4568 * cxx-pretty-print.c (pp_cx_unqualified_id): Likewise.
4571 * cvt.c (convert_to_void): Handle all cdtor calls as if
4574 2019-01-16 Paolo Carlini <paolo.carlini@oracle.com>
4576 * decl.c (grokdeclarator): Use locations[ds_storage_class] in
4577 error messages about ill-formed uses of mutable.
4579 2019-01-16 Marek Polacek <polacek@redhat.com>
4581 PR c++/78244 - narrowing conversion in template not detected.
4582 * call.c (perform_implicit_conversion_flags): Set
4583 IMPLICIT_CONV_EXPR_BRACED_INIT.
4584 * cp-tree.h (IMPLICIT_CONV_EXPR_BRACED_INIT): New.
4585 * pt.c (tsubst_copy_and_build): Use it.
4587 2019-01-15 David Malcolm <dmalcolm@redhat.com>
4590 * pt.c (build_deduction_guide): Bail out if tsubst_arg_types
4593 2019-01-15 Paolo Carlini <paolo.carlini@oracle.com>
4595 * decl.c (start_decl): Improve error location.
4596 * decl2.c (grokfield): Likewise.
4598 2019-01-15 Paolo Carlini <paolo.carlini@oracle.com>
4600 * decl.c (grokdeclarator): Move further up the location_t loc
4601 declaration and use the location when building a TYPE_DECL for
4603 * decl2.c (grokbitfield): Use DECL_SOURCE_LOCATION in the error
4604 about an ill-formed bit-field as typedef.
4606 2019-01-14 Marek Polacek <polacek@redhat.com>
4608 PR c++/88830 - ICE with abstract class.
4609 * decl2.c (maybe_emit_vtables): Check CLASSTYPE_LAZY_DESTRUCTOR.
4612 PR c++/88825 - ICE with bogus function return type deduction.
4613 * typeck.c (can_do_nrvo_p): Check error_mark_node.
4615 2019-01-14 Tom Honermann <tom@honermann.net>
4617 Implement P0482R5, char8_t: A type for UTF-8 characters and strings
4618 * cvt.c (type_promotes_to): Handle char8_t promotion.
4619 * decl.c (grokdeclarator): Handle invalid type specifier
4620 combinations involving char8_t.
4621 * lex.c (init_reswords): Add char8_t as a reserved word.
4622 * mangle.c (write_builtin_type): Add name mangling for char8_t (Du).
4623 * parser.c (cp_keyword_starts_decl_specifier_p)
4624 (cp_parser_simple_type_specifier): Recognize char8_t as a simple
4626 (cp_parser_string_literal): Use char8_array_type_node for the type
4628 (cp_parser_set_decl_spec_type): Tolerate char8_t typedefs in system
4630 * rtti.c (emit_support_tinfos): type_info support for char8_t.
4631 * tree.c (char_type_p): Recognize char8_t as a character type.
4632 * typeck.c (string_conv_p): Handle conversions of u8 string
4633 literals of char8_t type.
4634 (check_literal_operator_args): Handle UDLs with u8 string literals
4636 * typeck2.c (ordinary_char_type_p): New.
4637 (digest_init_r): Disallow initializing a char array with a u8 string
4640 2019-01-14 Martin Liska <mliska@suse.cz>
4642 PR gcov-profile/88263
4643 * decl2.c (get_tls_wrapper_fn): Use DECL_SOURCE_LOCATION
4644 as location of the TLS wrapper.
4646 2019-01-12 Paolo Carlini <paolo.carlini@oracle.com>
4648 * decl.c (cp_finish_decl): Improve error location.
4649 * decl2.c (grokfield): Likewise, improve two locations.
4651 2019-01-11 Marek Polacek <polacek@redhat.com>
4653 PR c++/88692, c++/87882 - -Wredundant-move false positive with *this.
4654 * typeck.c (maybe_warn_pessimizing_move): Return if ARG isn't
4657 2019-01-11 Jason Merrill <jason@redhat.com>
4659 PR c++/88312 - pack expansion of decltype.
4660 * pt.c (instantiation_dependent_r): A template non-type parameter
4661 pack is instantiation-dependent.
4663 2019-01-11 Jason Merrill <jason@redhat.com>
4665 PR c++/88613 - ICE with use of const var in lambda.
4666 * expr.c (mark_use): Fix location wrapper handling.
4667 * cp-gimplify.c (cp_fold_maybe_rvalue): Call mark_rvalue_use.
4669 2019-01-11 Tobias Burnus <burnus@net-b.de>
4672 * decl2.c (maybe_emit_vtables): If needed, generate code for
4673 the destructor of an abstract class.
4674 (mark_used): Update comment for older function-name change.
4676 2019-01-11 Paolo Carlini <paolo.carlini@oracle.com>
4678 * decl.c (start_decl): Improve error location.
4679 (grokdeclarator): Likewise, improve two locations.
4681 2019-01-09 Sandra Loosemore <sandra@codesourcery.com>
4685 * cp-tree.h: Mechanically replace "can not" with "cannot".
4686 * parser.c: Likewise.
4689 2019-01-08 Paolo Carlini <paolo.carlini@oracle.com>
4691 * decl.c (grok_reference_init): Improve error location.
4692 (grokdeclarator): Likewise, improve two locations.
4694 2019-01-08 Marek Polacek <polacek@redhat.com>
4696 PR c++/88538 - braced-init-list in template-argument-list.
4697 * parser.c (cp_parser_template_argument): Handle braced-init-list when
4700 PR c++/88548 - this accepted in static member functions.
4701 * parser.c (cp_debug_parser): Adjust printing of
4702 local_variables_forbidden_p.
4703 (cp_parser_new): Set local_variables_forbidden_p to 0 rather than false.
4704 (cp_parser_primary_expression): When checking
4705 local_variables_forbidden_p, use THIS_FORBIDDEN or
4706 LOCAL_VARS_FORBIDDEN.
4707 (cp_parser_lambda_body): Update the type of
4708 local_variables_forbidden_p. Set it to 0 rather than false.
4709 (cp_parser_condition): Adjust call to cp_parser_declarator.
4710 (cp_parser_explicit_instantiation): Likewise.
4711 (cp_parser_init_declarator): Likewise.
4712 (cp_parser_declarator): New parameter. Use it.
4713 (cp_parser_direct_declarator): New parameter. Use it to set
4714 local_variables_forbidden_p. Adjust call to cp_parser_declarator.
4715 (cp_parser_type_id_1): Adjust call to cp_parser_declarator.
4716 (cp_parser_parameter_declaration): Likewise.
4717 (cp_parser_default_argument): Update the type of
4718 local_variables_forbidden_p. Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
4720 (cp_parser_member_declaration): Tell cp_parser_declarator if we saw
4721 'static' or 'friend'.
4722 (cp_parser_exception_declaration): Adjust call to cp_parser_declarator.
4723 (cp_parser_late_parsing_default_args): Update the type of
4724 local_variables_forbidden_p. Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
4726 (cp_parser_cache_defarg): Adjust call to cp_parser_declarator.
4727 (cp_parser_objc_class_ivars): Likewise.
4728 (cp_parser_objc_struct_declaration): Likewise.
4729 (cp_parser_omp_for_loop_init): Likewise.
4730 * parser.h (cp_parser): Change the type of local_variables_forbidden_p
4732 (LOCAL_VARS_FORBIDDEN, LOCAL_VARS_AND_THIS_FORBIDDEN, THIS_FORBIDDEN):
4735 2019-01-08 Paolo Carlini <paolo.carlini@oracle.com>
4737 * decl.c (start_decl): Improve permerror location.
4739 2019-01-08 Jonathan Wakely <jwakely@redhat.com>
4740 Jakub Jelinek <jakub@redhat.com>
4743 * decl.c (finish_function): For -Wreturn-type don't add a return *this;
4744 fixit hint if current_class_ref is NULL. Use a single if instead of
4747 2019-01-07 Paolo Carlini <paolo.carlini@oracle.com>
4749 * decl.c (start_decl): Improve two error_at locations.
4750 (expand_static_init): Likewise.
4752 2019-01-07 Marek Polacek <polacek@redhat.com>
4754 PR c++/88741 - wrong error with initializer-string.
4755 * decl.c (cp_complete_array_type): Strip any location wrappers.
4757 2019-01-07 Bernd Edlinger <bernd.edlinger@hotmail.de>
4763 * cp-tree.h (LOOKUP_ALLOW_FLEXARRAY_INIT): New flag value.
4764 * typeck2.c (digest_init_r): Raise an error for non-static
4765 initialization of a flexible array member.
4766 (process_init_constructor, massage_init_elt,
4767 process_init_constructor_array, process_init_constructor_record,
4768 process_init_constructor_union, process_init_constructor): Add the
4769 flags parameter and pass it thru.
4770 (store_init_value): Pass LOOKUP_ALLOW_FLEXARRAY_INIT parameter to
4771 digest_init_flags for static decls.
4773 2019-01-07 Jakub Jelinek <jakub@redhat.com>
4776 * cp-tree.h (cp_build_vec_convert): Declare.
4777 * parser.c (cp_parser_postfix_expression): Parse
4778 __builtin_convertvector.
4779 * constexpr.c: Include fold-const-call.h.
4780 (cxx_eval_internal_function): Handle IFN_VEC_CONVERT.
4781 (potential_constant_expression_1): Likewise.
4782 * semantics.c (cp_build_vec_convert): New function.
4783 * pt.c (tsubst_copy_and_build): Handle CALL_EXPR to
4786 2019-01-03 Jakub Jelinek <jakub@redhat.com>
4789 * decl.c (builtin_function_1): Return result of pushdecl_top_level
4790 or pushdecl rather than decl.
4792 2019-01-03 Paolo Carlini <paolo.carlini@oracle.com>
4794 * tree.c (handle_nodiscard_attribute): Improve warning location.
4796 2019-01-02 Marek Polacek <polacek@redhat.com>
4798 PR c++/88612 - ICE with -Waddress-of-packed-member.
4799 * call.c (convert_for_arg_passing): Only give warnings with tf_warning.
4800 * typeck.c (convert_for_assignment): Likewise.
4802 PR c++/88631 - CTAD failing for value-initialization.
4803 * typeck2.c (build_functional_cast): Try deducing the template
4804 arguments even if there are no arguments to deduce from.
4806 2019-01-01 Jakub Jelinek <jakub@redhat.com>
4808 Update copyright years.
4810 Copyright (C) 2019 Free Software Foundation, Inc.
4812 Copying and distribution of this file, with or without modification,
4813 are permitted in any medium without royalty provided the copyright
4814 notice and this notice are preserved.