1 2019-11-19 Andrew Sutton <asutton@lock3software.com>
4 Suppress diagnostics substituting into a requires-expression.
5 * pt.c (tsubst_copy_and_build): Perform the first substitution without
6 diagnostics and a second only if tsubst_requries_expr returns an error.
8 2019-11-19 Jakub Jelinek <jakub@redhat.com>
11 * semantics.c (handle_omp_for_class_iterator): Don't call
12 cp_fully_fold on cond.
14 2019-11-18 Paolo Carlini <paolo.carlini@oracle.com>
16 * typeck.c (cp_build_addr_expr_1): Use cp_expr_loc_or_input_loc
18 (cxx_sizeof_expr): Use it in one additional place.
19 (cxx_alignof_expr): Likewise.
20 (lvalue_or_else): Likewise.
22 2019-11-18 Marek Polacek <polacek@redhat.com>
24 PR c++/91962 - ICE with reference binding and qualification conversion.
25 * call.c (convert_like_real) <case ck_ref_bind>: Check need_temporary_p.
27 2019-11-17 Jakub Jelinek <jakub@redhat.com>
29 * method.c (lookup_comparison_result): Use %qD instead of %<%T::%D%>
31 (lookup_comparison_category): Use %qD instead of %<std::%D%> to print
34 2019-11-15 Paolo Carlini <paolo.carlini@oracle.com>
36 * typeck.c (cp_truthvalue_conversion): Add tsubst_flags_t parameter
37 and use it in calls; also pass the location_t of the expression to
38 cp_build_binary_op and c_common_truthvalue_conversion.
39 * rtti.c (build_dynamic_cast_1): Adjust call.
40 * cvt.c (ocp_convert): Likewise.
41 * cp-gimplify.c (cp_fold): Likewise.
42 * cp-tree.h (cp_truthvalue_conversion): Update declaration.
44 2019-11-14 Jason Merrill <jason@redhat.com>
46 Implement P1816R0, class template argument deduction for aggregates.
47 * pt.c (maybe_aggr_guide, collect_ctor_idx_types): New.
48 (is_spec_or_derived): Split out from do_class_deduction.
49 (build_deduction_guide): Handle aggregate guide.
50 * class.c (finish_struct): Set CLASSTYPE_NON_AGGREGATE in a
52 * cp-tree.h (CP_AGGREGATE_TYPE_P): An incomplete class is not an
55 2019-11-14 Richard Sandiford <richard.sandiford@arm.com>
57 * call.c (build_conditional_expr_1): Use truth_type_for instead
58 of build_same_sized_truth_vector_type.
59 * typeck.c (build_vec_cmp): Likewise.
61 2019-11-14 Jakub Jelinek <jakub@redhat.com>
63 * parser.c (cp_parser_omp_context_selector): Don't require score
64 argument to fit into shwi, just to be INTEGER_CST. Diagnose
66 * pt.c (tsubst_attribute): Likewise.
68 * parser.c (cp_parser_omp_context_selector): Rename
69 CTX_PROPERTY_IDLIST to CTX_PROPERTY_NAME_LIST, add CTX_PROPERTY_ID.
70 Use CTX_PROPERTY_ID for atomic_default_mem_order, only allow a single
71 identifier in that. For CTX_PROPERTY_NAME_LIST, allow identifiers
73 * pt.c (tsubst_attribute): Fix up STRING_CST handling if allow_string.
75 2019-11-13 Marek Polacek <polacek@redhat.com>
77 PR c++/89070 - bogus [[nodiscard]] warning in SFINAE.
78 * cvt.c (convert_to_void): Guard maybe_warn_nodiscard calls with
81 2019-11-13 Richard Sandiford <richard.sandiford@arm.com>
84 * cp-tree.h (STF_STRIP_DEPENDENT): New constant.
85 * tree.c (strip_typedefs): Add STF_STRIP_DEPENDENT to the flags
86 when calling strip_typedefs recursively on a DECL_ORIGINAL_TYPE.
87 Don't apply the fix for DR1558 in that case; allow aliases with
88 dependent template parameters to be stripped instead.
90 2019-11-12 Nathan Sidwell <nathan@acm.org>
92 * name-lookup.c (lookup_using_decl): New function, merged from ...
93 (do_class_using_decl): ... here. Call it. And ...
94 (finish_nonmember_using_decl): ... here. Call it.
96 2019-11-12 Martin Liska <mliska@suse.cz>
98 * name-lookup.c: Do not include params.h.
101 2019-11-12 Martin Liska <mliska@suse.cz>
103 * name-lookup.c (namespace_hints::namespace_hints): Replace old
104 parameter syntax with the new one, include opts.h if needed. Use
105 SET_OPTION_IF_UNSET macro.
106 * typeck.c (comptypes): Likewise.
108 2019-11-12 Maciej W. Rozycki <macro@codesourcery.com>
109 Frederik Harwath <frederik@codesourcery.com>
112 * constexpr.c (potential_constant_expression_1): Handle
114 * parser.c (OACC_SERIAL_CLAUSE_MASK): New macro.
115 (cp_parser_oacc_kernels_parallel): Rename function to...
116 (cp_parser_oacc_compute): ... this. Handle PRAGMA_OACC_SERIAL.
117 (cp_parser_omp_construct): Update accordingly.
118 (cp_parser_pragma): Handle PRAGMA_OACC_SERIAL. Fix alphabetic
120 * pt.c (tsubst_expr): Handle OACC_SERIAL.
122 2019-11-11 Jason Merrill <jason@redhat.com>
124 Implement P1946R0, Allow defaulting comparisons by value.
125 * method.c (early_check_defaulted_comparison): Accept by-value,
126 reject mixed by-value and by-reference parms.
127 * decl.c (grokdeclarator): Set funcdef_flag for defaulted friend.
128 * decl2.c (grokfield): Don't SET_DECL_FRIEND_CONTEXT.
130 * typeck.c (cp_build_binary_op): Sorry about <=> on VECTOR_TYPE.
132 2019-11-11 Jakub Jelinek <jakub@redhat.com>
135 * decl.c (finish_function): Move ctype initialization before
136 DECL_DELETED_FN handling.
138 * semantics.c (finish_translation_unit): Diagnose declare target
139 without corresponding end declare target.
141 2019-11-10 Jason Merrill <jason@redhat.com>
143 Implement D1957R0, T* to bool should be considered narrowing.
144 * typeck2.c (check_narrowing): Treat pointer->bool as a narrowing
145 conversion with -std=c++2a.
147 2019-11-08 Marek Polacek <polacek@redhat.com>
149 PR c++/92215 - flawed diagnostic for bit-field with non-integral type.
150 * parser.c (cp_parser_member_declaration): Add a diagnostic for
151 bit-fields with non-integral types.
153 2019-11-08 Jakub Jelinek <jakub@redhat.com>
155 * init.c (build_vec_delete_1): Fix a comment typo - mist -> must.
157 2019-11-07 Jason Merrill <jason@redhat.com>
159 Implement D1959R0, remove weak_equality and strong_equality.
160 * method.c (enum comp_cat_tag, comp_cat_info): Remove *_equality.
161 (genericize_spaceship, common_comparison_type): Likewise.
162 * typeck.c (cp_build_binary_op): Move SPACESHIP_EXPR to be with the
163 relational operators, exclude other types no longer supported.
165 2019-11-06 Jason Merrill <jason@redhat.com>
167 Implement D1907R1 "structural type".
168 * tree.c (structural_type_p): New.
169 * pt.c (invalid_nontype_parm_type_p): Use it.
170 * class.c (build_base_field_1): Take binfo. Copy TREE_PRIVATE.
171 (build_base_field): Pass binfo.
173 PR c++/92150 - partial specialization with class NTTP.
174 * pt.c (unify): Handle VIEW_CONVERT_EXPR.
176 * pt.c (use_pack_expansion_extra_args_p): Still do substitution if
177 all packs are simple pack expansions.
178 (add_extra_args): Check that the extra args aren't dependent.
180 2019-11-06 Andrew Sutton <asutton@lock3software.com>
182 Use satisfaction with nested requirements.
183 * constraint.cc (build_parameter_mapping): Use
184 current_template_parms when the declaration is not available.
185 (norm_info::norm_info) Make explicit.
186 (normalize_constraint_expression): Factor into a separate overload
187 that takes arguments, and use that in the original function.
188 (tsubst_nested_requirement): Use satisfy_constraint instead of
189 trying to evaluate this as a constant expression.
190 (finish_nested_requirement): Keep the normalized constraint and the
191 original normalization arguments with the requirement.
192 (diagnose_nested_requirement): Use satisfy_constraint. Tentatively
193 implement more comprehensive diagnostics, but do not enable.
194 * parser.c (cp_parser_requires_expression): Relax requirement that
195 requires-expressions can live only inside templates.
196 * pt.c (any_template_parm_r): Look into type of PARM_DECL.
198 2019-11-06 Jason Merrill <jason@redhat.com>
200 C++20 NB CA378 - Remove constrained non-template functions.
201 * decl.c (grokfndecl): Reject constraints on non-templated function.
203 2019-11-06 Matthias Kretz <m.kretz@gsi.de>
205 * parser.c (cp_parser_operator): Parse operator?: as an
206 attempt to overload the conditional operator.
208 2019-11-05 Jason Merrill <jason@redhat.com>
210 Implement C++20 operator<=>.
211 * cp-tree.h (struct lang_decl_fn): Add maybe_deleted bitfield.
212 (DECL_MAYBE_DELETED): New.
213 (enum special_function_kind): Add sfk_comparison.
214 (LOOKUP_REWRITTEN, LOOKUP_REVERSED): New.
215 * call.c (struct z_candidate): Add rewritten and reversed methods.
216 (add_builtin_candidate): Handle SPACESHIP_EXPR.
217 (add_builtin_candidates): Likewise.
218 (add_candidates): Don't add a reversed candidate if the parms are
220 (add_operator_candidates): Split out from build_new_op_1. Handle
221 rewritten and reversed candidates.
222 (add_candidate): Swap conversions of reversed candidate.
223 (build_new_op_1): Swap them back. Build a second operation for
224 rewritten candidates.
225 (extract_call_expr): Handle rewritten calls.
226 (same_fn_or_template): New.
227 (joust): Handle rewritten and reversed candidates.
228 * class.c (add_implicitly_declared_members): Add implicit op==.
229 (classtype_has_op, classtype_has_defaulted_op): New.
230 * constexpr.c (cxx_eval_binary_expression): Handle SPACESHIP_EXPR.
231 (cxx_eval_constant_expression, potential_constant_expression_1):
233 * cp-gimplify.c (genericize_spaceship): New.
234 (cp_genericize_r): Use it.
235 * cp-objcp-common.c (cp_common_init_ts): Handle SPACESHIP_EXPR.
236 * decl.c (finish_function): Handle deleted function.
237 * decl2.c (grokfield): SET_DECL_FRIEND_CONTEXT on defaulted friend.
238 (mark_used): Check DECL_MAYBE_DELETED. Remove assumption that
239 defaulted functions are non-static members.
240 * error.c (dump_expr): Handle SPACESHIP_EXPR.
241 * method.c (type_has_trivial_fn): False for sfk_comparison.
242 (enum comp_cat_tag, struct comp_cat_info_t): New types.
243 (comp_cat_cache): New array variable.
244 (lookup_comparison_result, lookup_comparison_category)
245 (is_cat, cat_tag_for, spaceship_comp_cat)
246 (spaceship_type, genericize_spaceship)
247 (common_comparison_type, early_check_defaulted_comparison)
248 (comp_info, build_comparison_op): New.
249 (synthesize_method): Handle sfk_comparison. Handle deleted.
250 (get_defaulted_eh_spec, maybe_explain_implicit_delete)
251 (explain_implicit_non_constexpr, implicitly_declare_fn)
252 (defaulted_late_check, defaultable_fn_check): Handle sfk_comparison.
253 * name-lookup.c (get_std_name_hint): Add comparison categories.
254 * tree.c (special_function_p): Add sfk_comparison.
255 * typeck.c (cp_build_binary_op): Handle SPACESHIP_EXPR.
257 2019-11-05 Tim van Deurzen <tim@kompiler.org>
259 Add new tree code for the spaceship operator.
260 * cp-tree.def: Add new tree code.
261 * operators.def: New binary operator.
262 * parser.c: Add new token and tree code.
264 2019-09-15 Jason Merrill <jason@redhat.com>
266 * call.c (build_new_op_1): Don't apply any standard conversions to
267 the operands of a built-in operator. Don't suppress conversions in
269 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
271 2019-11-04 Jason Merrill <jason@redhat.com>
273 Use vec instead of raw array for built-in candidates.
274 * call.c (build_builtin_candidate): Take args in a vec.
275 (add_builtin_candidate, add_builtin_candidates): Likewise.
276 (build_conditional_expr_1, build_new_op_1): Adjust.
278 2019-11-04 Jason Merrill <jason@redhat.com>
280 * constexpr.c (explain_invalid_constexpr_fn): Show location of fn.
282 * pt.c (maybe_instantiate_noexcept): Only update clones if we
285 * typeck.c (contextual_conv_bool): New.
287 * name-lookup.c (lookup_qualified_name): Add wrapper overload taking
288 C string rather than identifier.
289 * parser.c (cp_parser_userdef_numeric_literal): Use it.
290 * rtti.c (emit_support_tinfos): Use it.
291 * cp-tree.h (ovl_op_identifier): Change to inline functions.
292 (build_x_binary_op): Add wrapper with fewer parms.
294 2019-11-05 Jason Merrill <jason@redhat.com>
296 * decl2.c (mark_used): Diagnose use of a function with unsatisfied
298 * typeck.c (cp_build_function_call_vec): Not here.
300 2019-11-05 Nathan Sidwell <nathan@acm.org>
303 * parser.c (cp_parser_error_1): Check EOF and UNKNOWN_LOCATION
304 when skipping over version control marker.
306 2019-11-05 Jakub Jelinek <jakub@redhat.com>
309 * constexpr.c (potential_constant_expression_1): Return true rather
310 than false for PREDICT_EXPR.
312 * decl.c (omp_declare_variant_finalize_one): Call
313 declare_simd_adjust_this not just on the context, but also on the
314 variant-id expression for methods. Don't call
315 cp_get_callee_fndecl_nofold, call cp_get_callee and only if it is
316 safe cp_get_fndecl_from_callee. Don't try to print as %qD
318 * pt.c (tsubst_attribute): Handle "omp declare variant base"
320 (tsubst_function_decl): Call omp_declare_variant_finalize
321 if there are any "omp declare variant base" attributes left.
323 2019-11-04 Kamlesh Kumar <kamleshbhalui@gmail.com>
325 PR c++/91979 - mangling nullptr expression
326 * mangle.c (write_template_arg_literal): Handle nullptr
329 2019-11-04 Jason Merrill <jason@redhat.com>
331 * typeck.c (check_return_expr): Avoid redundant error.
333 2019-11-02 Paolo Carlini <paolo.carlini@oracle.com>
335 * typeck.c (composite_pointer_type): Add a const op_location_t&
336 parameter and use it in diagnostics.
337 (composite_pointer_error): Likewise.
338 (composite_pointer_type_r): Add a const op_location_t&
339 parameter and forward it.
340 (cp_build_binary_op): Adjust calls.
341 (common_pointer_type): Likewise.
342 * call.c (add_builtin_candidate): Likewise.
343 (build_conditional_expr_1): Likewise.
344 * cp-tree.h (composite_pointer_type): Update declaration.
346 * typeck.c (cxx_sizeof_expr): Use cp_expr_loc_or_input_loc
348 (cxx_alignof_expr): Likewise.
349 (lvalue_or_else): Likewise.
351 2019-11-02 Jakub Jelinek <jakub@redhat.com>
353 * decl.c (omp_declare_variant_finalize_one): Use
354 omp_get_context_selector instead of c_omp_get_context_selector.
357 * parser.c (cp_parser_decl_specifier_seq): Don't parse attributes
358 if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR.
360 PR c++/88335 - Implement P1073R3: Immediate functions
361 * cp-tree.h (struct lang_decl_fn): Add immediate_fn_p bit.
362 (DECL_IMMEDIATE_FUNCTION_P, SET_DECL_IMMEDIATE_FUNCTION_P): Define.
363 (enum cp_decl_spec): Add ds_consteval.
364 (fold_non_dependent_expr): Add another tree argument defaulted to
366 * name-lookup.h (struct cp_binding_level): Add immediate_fn_ctx_p
368 * parser.c (cp_keyword_starts_decl_specifier_p): Adjust comments
369 for C++11 and C++20 specifiers. Handle RID_CONSTEVAL.
370 (CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR): Adjust comment.
371 (CP_PARSER_FLAGS_CONSTEVAL): New.
372 (cp_parser_skip_balanced_tokens): New forward declaration.
373 (cp_parser_lambda_declarator_opt): Handle ds_consteval. Set
374 current_binding_level->immediate_fn_ctx_p before parsing parameter
375 list if decl-specifier-seq contains consteval specifier.
376 (cp_parser_decl_specifier_seq): Handle RID_CONSTEVAL.
377 (cp_parser_explicit_instantiation): Diagnose explicit instantiation
378 with consteval specifier.
379 (cp_parser_init_declarator): For consteval or into flags
380 CP_PARSER_FLAGS_CONSTEVAL.
381 (cp_parser_direct_declarator): If CP_PARSER_FLAGS_CONSTEVAL, set
382 current_binding_level->immediate_fn_ctx_p in the sk_function_parms
384 (set_and_check_decl_spec_loc): Add consteval entry, formatting fix.
385 * call.c (build_addr_func): For direct calls to immediate functions
386 use build_address rather than decay_conversion.
387 (build_over_call): Evaluate immediate function invocations.
388 * error.c (dump_function_decl): Handle DECL_IMMEDIATE_FUNCTION_P.
389 * semantics.c (expand_or_defer_fn_1): Use tentative linkage and don't
390 call mark_needed for immediate functions.
391 * typeck.c (cxx_sizeof_or_alignof_expr): Likewise. Formatting fix.
392 (cp_build_addr_expr_1): Reject taking address of immediate function
393 outside of immediate function.
394 * decl.c (validate_constexpr_redeclaration): Diagnose consteval
395 vs. non-consteval or vice versa redeclaration. Use
396 SET_DECL_IMMEDIATE_FUNCTION_P if new_decl is immediate function.
397 (check_tag_decl): Use %qs with keyword string to simplify translation.
399 (start_decl): Adjust diagnostics for static or thread_local variables
400 in immediate functions.
401 (grokfndecl): Call sorry_at on virtual consteval. Use %qs with keyword
402 to string to simplify translation. Diagnose consteval main. Use
403 SET_DECL_IMMEDIATE_FUNCTION_P for consteval.
404 (grokdeclarator): Handle consteval. Use %qs with keyword strings to
405 simplify translation. Use separate ifs instead of chained else if
406 for invalid specifiers. For constinit clear constinit_p rather than
408 * constexpr.c (find_immediate_fndecl): New function.
409 (cxx_eval_outermost_constant_expr): Allow consteval calls returning
410 void. Diagnose returning address of immediate function from consteval
412 (fold_non_dependent_expr_template): Add OBJECT argument, pass it
413 through to cxx_eval_outermost_constant_expr.
414 (fold_non_dependent_expr): Add OBJECT argument, pass it through to
415 fold_non_dependent_expr_template.
416 (fold_non_dependent_init): Adjust fold_non_dependent_expr_template
418 * method.c (defaulted_late_check): Adjust diagnostics for consteval.
419 * lambda.c (maybe_add_lambda_conv_op): Copy over
420 DECL_DECLARED_CONSTEXPR_P and DECL_IMMEDIATE_FUNCTION_P bits from
421 callop to both artificial functions.
422 * init.c (build_value_init): Don't do further processing if
423 build_special_member_call returned a TREE_CONSTANT. Formatting fix.
425 PR c++/91369 - Implement P0784R7: constexpr new
426 * cp-tree.h (CALL_FROM_NEW_OR_DELETE_P): Define.
427 * init.c (build_new_1, build_vec_delete_1, build_delete): Set
428 CALL_FROM_NEW_OR_DELETE_P on the CALL_EXPR to allocator functions.
429 * constexpr.c (is_std_allocator_allocate): Only allow
430 global replaceable allocator functions if CALL_FROM_NEW_OR_DELETE_P
431 or in std::allocate<T>::{,de}allocate.
432 (potential_constant_expression_1): Likewise.
434 2019-11-01 Nathan Sidwell <nathan@acm.org>
436 * class.c (check_field_decls): Refactor.
438 2019-10-31 Jakub Jelinek <jakub@redhat.com>
441 * cp-tree.h (type_initializer_zero_p): Declare.
442 * decl.c (reshape_init_array_1): Formatting fix.
443 * tree.c (type_initializer_zero_p): New function. Moved from
444 ../tree.c, use next_initializable_field, formatting fix. Return
445 false for TYPE_NON_AGGREGATE_CLASS types.
447 2019-10-30 Jason Merrill <jason@redhat.com>
449 PR c++/92268 - hard error satisfying return-type-requirement
450 * constraint.cc (type_deducible_p): Check for substitution failure.
451 (diagnose_compound_requirement): Adjust diagnostic.
452 * pt.c (do_auto_deduction): Don't pass cargs to
453 constraints_satisfied_p.
455 2019-10-30 Jakub Jelinek <jakub@redhat.com>
457 PR c++/91369 - Implement P0784R7: constexpr new
458 * constexpr.c (cxx_replaceable_global_alloc_fn): Don't return true
460 (cxx_placement_new_fn, is_std_construct_at): New functions.
461 (cxx_eval_call_expression): Allow placement new in std::construct_at.
462 (potential_constant_expression_1): Likewise.
464 * typeck.c (decl_in_std_namespace_p): Return true also for decls
465 in inline namespaces inside of std namespace.
467 2019-10-30 Bernd Edlinger <bernd.edlinger@hotmail.de>
470 * name-lookup.c (check_local_shadow): Shadowing TYPE_DECLs
471 is always a -Wshadow=compatible-local warning, unless
474 2019-10-30 Jason Merrill <jason@redhat.com>
476 * cxx-pretty-print.c (get_fold_operator): Use OVL_OP_INFO.
478 2019-10-30 Marek Polacek <polacek@redhat.com>
480 PR c++/92134 - constinit malfunction in static data member.
481 * decl2.c (grokfield): Set LOOKUP_CONSTINIT.
483 2019-10-30 Jakub Jelinek <jakub@redhat.com>
485 * cp-tree.h (omp_declare_variant_finalize, build_local_temp): Declare.
486 * decl.c: Include omp-general.h.
487 (declare_simd_adjust_this): Add forward declaration.
488 (omp_declare_variant_finalize_one, omp_declare_variant_finalize): New
490 (cp_finish_decl, finish_function): Call omp_declare_variant_finalize.
491 * parser.c (cp_finish_omp_declare_variant): Adjust parsing of the
492 variant id-expression and propagate enough information to
493 omp_declare_variant_finalize_one in the attribute so that it can
495 * class.c (finish_struct): Call omp_declare_variant_finalize.
496 * tree.c (build_local_temp): No longer static, remove forward
499 2019-10-30 Paolo Carlini <paolo.carlini@oracle.com>
501 * typeck.c (cp_build_modify_expr): Prefer error + inform to
502 error + error in one place.
503 (get_delta_difference_1): Likewise.
504 (get_delta_difference): Likewise, in two places.
506 2019-10-29 Paolo Carlini <paolo.carlini@oracle.com>
508 * typeck.c (build_x_unary_op): Use the location_t argument in
511 2019-10-29 Marek Polacek <polacek@redhat.com>
513 PR c++/90998 - ICE with copy elision in init by ctor and -Wconversion.
514 * call.c (joust): Don't attempt to warn if ->second_conv is null.
516 2019-10-29 Jakub Jelinek <jakub@redhat.com>
519 * cp-gimplify.c (cp_gimplify_expr): If gimplify_to_rvalue changes the
520 function pointer type, re-add cast to the original one.
522 2019-10-29 Marek Polacek <polacek@redhat.com>
524 PR c++/91548 - fix detecting modifying const objects for ARRAY_REF.
525 * constexpr.c (cxx_eval_store_expression): Don't call
526 modifying_const_object_p for ARRAY_REF.
528 2019-10-29 Richard Sandiford <richard.sandiford@arm.com>
530 * cp-objcp-common.h (cxx_simulate_enum_decl): Declare.
531 (LANG_HOOKS_SIMULATE_ENUM_DECL): Define to the above.
532 * decl.c (cxx_simulate_enum_decl): New function.
534 2019-10-29 Richard Sandiford <richard.sandiford@arm.com>
536 * cp-tree.h (cxx_simulate_builtin_function_decl): Declare.
537 * decl.c (cxx_simulate_builtin_function_decl): New function.
538 * cp-objcp-common.h (LANG_HOOKS_SIMULATE_BUILTIN_FUNCTION_DECL):
541 2019-10-28 Martin Sebor <msebor@redhat.com>
544 * cp-objcp-common.c (names_builtin_p): Define new function.
546 2019-10-28 Nathan Sidwell <nathan@acm.org>
548 * parser.h (struct cp_token): Drop {ENUM,BOOL}_BITFIELD C-ism.
549 Add tree_check_p flag, use as nested union discriminator.
550 (struct cp_lexer): Add saved_type & saved_keyword fields.
551 * parser.c (eof_token): Delete.
552 (cp_lexer_new_main): Always init last_token to last token of
554 (cp_lexer_new_from_tokens): Overlay EOF token at end of range.
555 (cp_lexer_destroy): Restore token under the EOF.
556 (cp_lexer_previous_token_position): No check for eof_token here.
557 (cp_lexer_get_preprocessor_token): Clear tree_check_p.
558 (cp_lexer_peek_nth_token): Check CPP_EOF not eof_token.
559 (cp_lexer_consume_token): Assert not CPP_EOF, no check for
561 (cp_lexer_purge_token): Likewise.
562 (cp_lexer_purge_tokens_after): No check for EOF token.
563 (cp_parser_nested_name_specifier, cp_parser_decltype)
564 (cp_parser_template_id): Set tree_check_p.
566 2019-10-24 Jakub Jelinek <jakub@redhat.com>
568 * decl2.c (cplus_decl_attributes): Add "omp declare target block"
569 attribute in between declare target and end declare target
572 * call.c (convert_arg_to_ellipsis): Add missing space in string
575 2019-10-24 Marek Polacek <polacek@redhat.com>
577 * decl.c (reshape_init_r): Add missing space.
579 2019-10-24 Nathan Sidwell <nathan@acm.org>
581 * pt.c (reduce_template_parm_level): Attach the new TPI to the new
583 (convert_generic_types_to_packs): Pass the copied type to
584 reduce_templatE_parm_level.
586 2019-10-23 Nathan Sidwell <nathan@acm.org>
588 * cp-tree.c (CPTI_STD_IDENTIFIER): Delete.
589 (std_identifier): Delete.
590 (DECL_NAME_SPACE_STD_P): Compare against std_node.
591 * decl.c (initialize_predefined_identifiers): 'std' is not needed.
592 (cxx_init_decl_processing): Adjust creation of ::std. Use
593 {push,pop}_nested_namespace.
594 (cxx_builtin_function): Use {push,pop}_nested_namespace.
595 * except.c (init_exception_processing): Likewise.
596 * rtti.c (init_rtti_processing): Likewise.
598 2019-10-23 Jason Merrill <jason@redhat.com>
600 Implement P1286R2, Contra CWG1778
601 * method.c (defaulted_late_check): Don't check explicit
602 exception-specification on defaulted function.
603 (after_nsdmi_defaulted_late_checks): Remove.
604 * parser.h (struct cp_unparsed_functions_entry): Remove classes.
605 * parser.c (unparsed_classes): Remove.
606 (push_unparsed_function_queues, cp_parser_class_specifier_1):
609 2019-10-23 Jakub Jelinek <jakub@redhat.com>
611 * constexpr.c (cxx_eval_constant_expression) <case CLEANUP_STMT>:
612 Temporarily change input_location to CLEANUP_STMT location.
614 2019-10-22 Jakub Jelinek <jakub@redhat.com>
616 PR tree-optimization/85887
617 * decl.c (expand_static_init): Drop ECF_LEAF from __cxa_guard_acquire
618 and __cxa_guard_release.
620 2019-10-22 Marc Glisse <marc.glisse@inria.fr>
623 * constexpr.c (cxx_eval_builtin_function_call): Only set
624 force_folding_builtin_constant_p if manifestly_const_eval.
626 2019-10-22 Richard Sandiford <richard.sandiford@arm.com>
628 * cp-tree.h (STF_USER_VISIBLE): New constant.
629 (strip_typedefs, strip_typedefs_expr): Take a flags argument.
630 * tree.c (strip_typedefs, strip_typedefs_expr): Likewise,
631 updating mutual calls accordingly. When STF_USER_VISIBLE is true,
632 only look through typedefs if user_facing_original_type_p.
633 * error.c (dump_template_bindings, type_to_string): Pass
634 STF_USER_VISIBLE to strip_typedefs.
635 (dump_type): Likewise, unless pp_c_flag_gnu_v3 is set.
637 2019-10-21 Kamlesh Kumar <kamleshbhalui@gmail.com>
638 Jason Merrill <jason@redhat.com>
640 PR c++/83534 - typeinfo of noexcept function
641 * rtti.c (get_tinfo_decl_dynamic): Do not call
642 TYPE_MAIN_VARIANT for function.
643 (get_typeid): Likewise.
645 2019-10-21 Paolo Carlini <paolo.carlini@oracle.com>
647 * parser.c (cp_parser_class_head): Improve error recovery upon
648 extra qualification error.
650 2019-10-21 Jakub Jelinek <jakub@redhat.com>
653 * constexpr.c (cxx_eval_component_reference, cxx_eval_bit_field_ref):
654 Use STRIP_ANY_LOCATION_WRAPPER on CONSTRUCTOR elts.
656 2019-10-21 Marek Polacek <polacek@redhat.com>
658 PR c++/92062 - ODR-use ignored for static member of class template.
659 * pt.c (has_value_dependent_address): Strip location wrappers.
661 2019-10-21 Marek Polacek <polacek@redhat.com>
663 PR c++/92106 - ICE with structured bindings and -Wreturn-local-addr.
664 * typeck.c (maybe_warn_about_returning_address_of_local): Avoid
665 recursing on null initializer and return false instead.
667 2019-10-17 JeanHeyd Meneide <phdofthehouse@gmail.com>
669 Implement p1301 [[nodiscard("should have a reason")]] + p1771 DR
670 * tree.c (handle_nodiscard_attribute): Handle C++2a nodiscard
672 (std_attribute_table) Increase nodiscard argument handling
673 max_length from 0 to 1.
674 * parser.c (cp_parser_check_std_attribute): Add requirement
675 that nodiscard only be seen once in attribute-list.
676 (cp_parser_std_attribute): Check that empty parenthesis lists are
677 not specified for attributes that have max_length > 0 (e.g.
679 * cvt.c (maybe_warn_nodiscard): Add nodiscard message to
680 output, if applicable.
681 (convert_to_void): Allow constructors to be nodiscard-able (P1771).
683 2019-10-18 Nathan Sidwell <nathan@acm.org>
685 * cp-tree.h (struct lang_type): Remove was_anonymous.
686 (TYPE_WAS_UNNAMED): Implement by checking TYPE_DECL &
688 * decl.c (name_unnamed_type): Don't set TYPE_WAS_UNNAMED.
690 2019-10-17 Paolo Carlini <paolo.carlini@oracle.com>
692 * decl.c (grokfndecl): Remove redundant use of in_system_header_at.
693 (compute_array_index_type_loc): Likewise.
694 (grokdeclarator): Likewise.
695 * error.c (cp_printer): Likewise.
696 * lambda.c (add_default_capture): Likewise.
697 * parser.c (cp_parser_primary_expression): Likewise.
698 (cp_parser_selection_statement): Likewise.
699 (cp_parser_toplevel_declaration): Likewise.
700 (cp_parser_enumerator_list): Likewise.
701 (cp_parser_using_declaration): Likewise.
702 (cp_parser_member_declaration): Likewise.
703 (cp_parser_exception_specification_opt): Likewise.
704 (cp_parser_std_attribute_spec): Likewise.
705 * pt.c (do_decl_instantiation): Likewise.
706 (do_type_instantiation): Likewise.
707 * typeck.c (cp_build_unary_op): Likewise.
709 * decl.c (check_tag_decl): Pass to in_system_header_at the same
710 location used for the permerror.
711 (grokdeclarator): Likewise.
713 * decl.c (check_tag_decl): Use locations[ds_typedef] in error_at.
715 2019-10-17 Jason Merrill <jason@redhat.com>
717 * cp-gimplify.c (cp_gimplify_expr): Use get_initialized_tmp_var.
718 (gimplify_to_rvalue): Remove default NULL argument.
720 2019-10-17 Nathan Sidwell <nathan@acm.org>
722 * decl.c (builtin_function_1): Merge into ...
723 (cxx_builtin_function): ... here. Nadger the decl before maybe
724 copying it. Set the context.
725 (cxx_builtin_function_ext_scope): Push to top level, then call
726 cxx_builtin_function.
728 2019-10-16 Luis Machado <luis.machado@linaro.org>
730 * cp-gimplify.c: Fix reference to non-existing tree-gimple.c file.
732 2019-10-16 Jakub Jelinek <jakub@redhat.com>
734 * decl.c (cxx_maybe_build_cleanup): When clearing location of cleanup,
735 if cleanup is a nop, clear location of its operand too.
737 2019-10-15 Andrew Sutton <asutton@lock3software.com>
739 Finish moving constraint and logic functionality of out pt.c.
740 Reimplement and re-enable subsumption caching.
742 * config-lang.in (gtfiles): Add logic.cc.
743 * constraint.cc (atomic_constraints_identical_p): Add assertions.
744 (hash_atomic_constraint): Likewise.
745 (constraints_equivalent_p): New.
746 (inchash::add_constraint): New.
747 (iterative_hash_constraint): New.
748 (decl_constraints): Moved from pt.c.
749 (get_constraints): Likewise.
750 (set_constraints): Likewise.
751 (remove_constraints): Likewise.
752 * cp-tree.h (CONSTR_P): New.
753 (init_constraint_processing): Remove.
754 (constraints_equivalent_p, iterative_hash_constraint): Declare.
755 * decl.c (cxx_init_decl_processing): Don't initialize constraints.
756 * logic.cc (subsumption_entry): Moved from pt.c.
757 (subsumption_hasher): Likewise.
758 (subsumption_cache): Likewise.
759 (lookup_subsumption): Likewise.
760 (save_subsumption): Likewise.
761 (subsumes_constraints_nonnull): Use subsumption cache.
762 * pt.c: Move aforementioned declarations out of this file.
763 (init_constraint_processing): Remove.
765 2019-10-15 Andrew Sutton <asutton@lock3software.com>
767 * parser.c (cp_parser_constructor_declarator_p): Pass an empty
768 decl-specifier-seq to make sure we parse type constraints as part
771 2019-10-15 Nathan Sidwell <nathan@acm.org>
773 * class.c (build_clones): Break out of clone_function_decl. Just
775 (clone_function_decl): Call build_clones, then maybe add them to
778 * class.c (build_clone): Refactor to clarify recursiveness.
780 2019-10-14 Jason Merrill <jason@redhat.com>
782 PR c++/91930 - ICE with constrained inherited default ctor.
783 * name-lookup.c (do_class_using_decl): Set TYPE_HAS_USER_CONSTRUCTOR
784 for inherited constructor.
786 2019-10-14 Paolo Carlini <paolo.carlini@oracle.com>
788 * decl.c (check_tag_decl): Use DECL_SOURCE_LOCATION.
790 2019-10-14 Jakub Jelinek <jakub@redhat.com>
793 * semantics.c (handle_omp_array_sections_1): Temporarily disable
794 -fstrong-eval-order also for in_reduction and task_reduction clauses.
796 * parser.c (cp_parser_omp_all_clauses): Change bool NESTED_P argument
797 into int NESTED, if it is 2, diagnose missing commas in between
799 (cp_parser_omp_context_selector): Pass 2 as last argument to
800 cp_parser_omp_all_clauses.
802 2019-10-12 Jakub Jelinek <jakub@redhat.com>
804 * parser.c (cp_parser_omp_context_selector): Improve error recovery.
805 For simd properties, put them directly into TREE_VALUE.
806 (cp_finish_omp_declare_variant): Add "omp declare variant base"
807 attribute rather than "omp declare variant".
809 2019-10-11 Marek Polacek <polacek@redhat.com>
811 PR c++/92049 - extra error with -fchecking=2.
812 * pt.c (build_non_dependent_expr): Call fold_non_dependent_expr
815 2019-10-11 Paolo Carlini <paolo.carlini@oracle.com>
817 * typeck.c (cp_build_binary_op): Do not handle RROTATE_EXPR and
819 * constexpr.c (cxx_eval_constant_expression): Likewise.
820 (potential_constant_expression_1): Likewise.
821 * pt.c (tsubst_copy): Likewise.
823 2019-10-11 Jason Merrill <jason@redhat.com>
825 * decl2.c (mark_used): Don't clobber DECL_SOURCE_LOCATION on
826 explicitly defaulted functions.
827 * method.c (synthesize_method): Likewise.
829 2019-10-11 Jakub Jelinek <jakub@redhat.com>
832 * decl2.c (grok_array_decl): For -fstrong-eval-order, when array ref
833 operands have been swapped and at least one operand has side-effects,
834 revert the swapping before calling build_array_ref.
835 * typeck.c (cp_build_array_ref): For non-ARRAY_TYPE array ref with
836 side-effects on the index operand, if -fstrong-eval-order use
837 save_expr around the array operand.
838 (cp_build_binary_op): For shifts with side-effects in the second
839 operand, wrap first operand into SAVE_EXPR and evaluate it before
841 * semantics.c (handle_omp_array_sections_1): Temporarily disable
842 flag_strong_eval_order during OMP_CLAUSE_REDUCTION array section
844 * cp-gimplify.c (gimplify_to_rvalue): New function.
845 (cp_gimplify_expr): Use it.
847 2019-10-10 Marek Polacek <polacek@redhat.com>
849 * typeck.c (comp_ptr_ttypes_real): Change the return type to bool.
850 Use false instead of 0.
852 2019-10-10 Jakub Jelinek <jakub@redhat.com>
854 * parser.h (struct cp_omp_declare_simd_data): Add variant_p member.
855 * parser.c (cp_ensure_no_omp_declare_simd): Handle both declare simd
857 (cp_parser_oacc_all_clauses): Formatting fix.
858 (cp_parser_omp_all_clauses): Add NESTED_P argument, if true, terminate
859 processing on closing paren and don't skip to end of pragma line.
860 (cp_parser_omp_declare_simd): Add VARIANT_P argument. Handle also
862 (omp_construct_selectors, omp_device_selectors,
863 omp_implementation_selectors, omp_user_selectors): New variables.
864 (cp_parser_omp_context_selector,
865 cp_parser_omp_context_selector_specification,
866 cp_finish_omp_declare_variant): New functions.
867 (cp_parser_late_parsing_omp_declare_simd): Handle also declare variant.
868 (cp_parser_omp_declare): Handle declare variant.
870 2019-10-09 Jason Merrill <jason@redhat.com>
872 * cp-tree.h (template_info_decl_check): Check ENABLE_TREE_CHECKING.
874 2019-10-09 Marek Polacek <polacek@redhat.com>
876 PR c++/91364 - P0388R4: Permit conversions to arrays of unknown bound.
877 PR c++/69531 - DR 1307: Differently bounded array parameters.
878 PR c++/88128 - DR 330: Qual convs and pointers to arrays of pointers.
879 * call.c (build_array_conv): Build ck_identity at the beginning
881 (standard_conversion): Pass bounds_none to comp_ptr_ttypes_const.
882 (maybe_warn_array_conv): New.
883 (convert_like_real): Call it. Add an error message about converting
884 from arrays of unknown bounds.
885 (conv_get_original_expr): New.
886 (nelts_initialized_by_list_init): New.
887 (conv_binds_to_array_of_unknown_bound): New.
888 (compare_ics): Implement list-initialization ranking based on
889 array sizes, as specified in DR 1307 and P0388R.
890 * cp-tree.h (comp_ptr_ttypes_const): Adjust declaration.
891 (compare_bounds_t): New enum.
892 * typeck.c (comp_array_types): New bool and compare_bounds_t
893 parameters. Use them.
894 (structural_comptypes): Adjust the call to comp_array_types.
895 (similar_type_p): Handle ARRAY_TYPE.
896 (build_const_cast_1): Pass bounds_none to comp_ptr_ttypes_const.
897 (comp_ptr_ttypes_real): Don't check cv-quals of ARRAY_TYPEs. Use
898 comp_array_types to compare array types. Look through arrays as per
900 (comp_ptr_ttypes_const): Use comp_array_types to compare array types.
901 Look through arrays as per DR 330.
903 2019-10-09 Marek Polacek <polacek@redhat.com>
905 PR c++/92032 - DR 1601: Promotion of enum with fixed underlying type.
906 * call.c (standard_conversion): When converting an enumeration with
907 a fixed underlying type to the underlying type, give it the cr_promotion
909 (compare_ics): Implement a tiebreaker as per CWG 1601.
911 2019-10-08 Andrew Sutton <asutton@lock3software.com>
912 Jason Merrill <jason@redhat.com>
914 Update the concepts implementation to conform to the C++20
915 specification, improve compile times, and generally clean up
917 * call.c (build_new_function_call): Don't evaluate concepts here.
918 (constraint_failure): Don't record the template.
919 (print_z_candidate): Don't extract the template.
920 * class.c (add_method): When overloading, hide ineligible special
922 (check_methods): Set TYPE_HAS_COMPLEX_* here.
923 * constexpr.c (cxx_eval_constant_expression): Evaluate concepts.
924 (maybe_initialize_fundef_copies_table): Remove.
925 (get_fundef_copy): Use hash_map_safe_get_or_insert.
926 (clear_cv_and_fold_caches): Clear the satisfaction cache.
927 * constraint.cc (known_non_bool_p): New.
928 (parsing_constraint_expression_sentinel): Renamed from
929 expanding_constraint_sentinel.
930 (check_constraint_operands): New.
931 (check_constraint_atom): New.
932 (finish_constraint_binary_op): New.
933 (finish_constraint_or_expr): Likewise.
934 (finish_constraint_and_expr): Likewise.
935 (finish_constraint_primary_expr): Likewise.
936 (combine_constraint_expressions): New.
937 (finish_requires_expr): Add location parm.
938 (get_concept_definition): Return the initializer of concept definitions.
939 (get_template_head_requirements): New.
940 (get_trailing_function_requirements): New.
941 (deduce_constrained_parameter): Check if the identifier or template-id
942 is a concept definition.
943 (resolve_concept_definition_check): Removed.
944 (resolve_variable_concept_check): Removed.
945 (resolve_concept_check): New.
946 (resolve_constraint_check): Handle concept definitions.
947 converting arguments.
948 (function_concept_check_p): Removed.
949 (variable_concept_check_p): Removed.
950 (unpack_concept_check): New.
951 (get_concept_check_template): New.
952 (build_call_check): Moved and renamed to build_function_check.
953 (build_concept_check_arguments): make static.
954 (build_function_check): Always do overload resolution
955 in order to force conversion of template arguments (i.e., actually
956 check that the use of a concept is valid).
957 (build_standard_check): Renamed from build_real_concept_check.
958 (build_real_concept_check): Build checks for C++2a concepts by
959 (build_wildcard_concept_check): New.
960 (build_concept_check): Use build_real_concept_check. New overload.
961 (build_constraints): Save expressions, not normalized constraints.
962 (build_concept_id): New. Pass tf_warning_or_error.
963 (build_type_constraint): New.
964 (finish_type_constraints): New.
965 (associate_classtype_constraints): Also add constraints to union
966 types. Note the original declaration in errors. Don't return
967 error_mark_node in order to avoid an assertion later.
968 (push_down_pack_expansion): Remove.
969 (finish_shorthand_constraint): Make fold expressions, not naked
970 parameter packs. Always apply the constraint to each template argument.
971 (check_introduction_list): New. Fail if not enough
972 names are introduced.
973 (finish_template_introduction): Don't normalize constraints. Pass
974 tsubst flags. Check for insufficient introductions.
975 (placeholder_extract_concept_and_args): Handle the template-id case.
976 Unpack function concept checks correctly.
977 (tsubst_simple_requirement): Return errors if they occur. Don't
978 process as a template.
979 (tsubst_type_requirement): Likewise.
980 (type_deducible_p): New. Wrap the input expression in parens for the
981 purpose of deduction.
982 (expression_convertible_t): New.
983 (tsubst_compound_requirement): Use new deduction, conversion predicates.
984 (tsubst_nested_requirement): Return errors if they occur. Don't
985 process as a template. Instantiate and evaluate the nested requirement.
986 (tsubst_valid_expression_requirement): New.
987 (tsubst_simple_requirement): Use tsubst_valid_expression_requirement.
988 (tsubst_compound_requirement): Use tsubst_valid_expression_requirement.
989 (check_constaint_variables): New.
990 (tsubst_constraint_variables): Check that type substitutions are valid.
991 (tsubst_requires_expr): Likewise. Produce new requires-exprs during
992 template substitution. Copy the previous local specialization stack,
993 so references to non-local parameters can be found. Use cp_unevaluated.
994 (tsubst_constraint): New. Don't evaluate concept checks.
996 (norm_info): New. Used to build a normalization tree for concept check
998 (debug_parameter_mapping): New.
999 (debug_argument_list): New.
1000 (expand_concept): Removed.
1001 (normalize_logical_operation): Pass subst_info through call.
1002 (normalize_pack_expansion): Remove.
1003 (normalize_simple_requirement): Removed
1004 (normalize_type_requirement): Removed
1005 (normalize_compound_requirement): Removed
1006 (normalize_nested_requirement): Removed
1007 (normalize_requirement): Removed
1008 (normalize_requirements): Removed
1009 (normalize_requires_expression): Removed
1010 (normalize_variable_concept_check): Removed.
1011 (normalize_function_concept_check): Removed.
1012 (normalize_concept_check): Merged all normalize_*_check here.
1013 Substitute through written template arguments before normalizing the
1014 definition. Only substitute the innermost template arguments.
1015 (check_for_logical_overloads): Delete.
1016 (map_arguments): New. Associate template parameters with arguments.
1017 (build_parameter_mapping): New. Extract used parameters.
1018 (normalize_expression): Rewrite.
1019 (normalize_conjunction): Removed
1020 (normalize_disjunction): Removed
1021 (normalize_predicate_constraint): Removed
1022 (normalize_parameterized_constraint): Removed
1023 (normalized_map): New variable.
1024 (get_normalized_constraints): New entry point for normalization.
1025 Establishes a timer.
1026 (get_normalized_constraints_from_info): New.
1027 (get_normalized_constraints_from_decl): New. Turn on template processing
1028 prior to normalization. Handle inheriting ctors. Build the
1029 normalization arguments from the full set of template parameters of the
1030 most general template. This guarantees that we have no concrete arguments
1031 in the parameter mapping (e.g., from template members of class
1032 templates). Cache normalizations.
1033 (normalize_concept_definition): New. Cache normalizations.
1034 (normalize_template_requirements): New.
1035 (normalize_nontemplate_requirements): New.
1036 (normalize_constraint_expression): New.
1037 (tsubst_parameter_mapping): New.
1038 (get_mapped_args): New.
1039 (parameter_mapping_equivalent_p): New. Use template_args_equal.
1040 (atomic_constraints_identical_p): New.
1041 (hash_atomic_constraint): New.
1042 (satisfying_constraint_p): New. Guard against recursive evaluation of
1043 constraints during satisfaction.
1044 (satisfy_conjunction): New.
1045 (satisfy_disjunction): New.
1046 (sat_entry): New class for hashing satisfaction results.
1047 (sat_hasher): New hash traits.
1049 (get_satisfaction): New. Returns cached satisfaction result.
1050 (save_satisfaction): New. Caches a satisfaction result.
1051 (clear_satisfaction_cache): New.
1052 (satisfaction_cache): New. Helps manage satisfaction cache requests.
1053 (decl_satisfied_cache): New.
1054 (satisfy_atom): New.
1055 (satisfy_constraint_r): New.
1056 (satisfy_constraint): Use new satisfaction algorithm.
1057 (evaluate_concept_check): New.
1058 (evaluate_concept): Removed.
1059 (evaluate_function_concept): Removed.
1060 (evaluate_variable_concept): Removed.
1061 (satisfy_constraint_expression): New.
1062 (constraint_expression_satisfied_p): New.
1063 (constraints_satisfied_p): Use strip_inheriting_ctors. Use
1064 push_/pop_access_scope.
1065 (more_constrained): Normalize before calling out to subsumption. Allow
1066 classes as arguments.
1067 (strictly_subsumes): Allow non-templates as arguments. Accept a new
1069 (weakly_subsumes): New.
1070 (at_least_as_constrained): Removed.
1071 (diagnose_other_expression): Removed.
1072 (diagnose_predicate_constraint): Removed.
1073 (diagnose_pack_expansion): Removed.
1074 (diagnose_check_constraint): Removed.
1075 (diagnose_logical_constraint): Removed.
1076 (diagnose_expression_constraint): Removed.
1077 (diagnose_type_constraint): Removed.
1078 (diagnose_implicit_conversion_constraint): Removed.
1079 (diagnose_argument_deduction_constraint): Removed.
1080 (diagnose_exception_constraint): Removed.
1081 (diagnose_parameterized_constraint): Removed.
1082 (diagnose_argument_deduction_constraint): Removed.
1083 (diagnose_argument_deduction_constraint): Removed.
1084 (diagnose_argument_deduction_constraint): Removed.
1085 (diagnose_trait_expr): New.
1086 (diagnose_requires_expr): New.
1087 (diagnose_atomic_constraint): New.
1088 (diagnose_valid_expression) Stop wrongly diagnosing valid expressions.
1089 Don't substitute as if in template decls. This causes substitution
1090 to generate expressions that aren't suitable for use with the noexcept
1092 (diagnose_valid_type) Likewise.
1093 (diagnose_compound_requirement) Actually emit diagnostics for
1094 the causes of errors.Call force_paren_expr_uneval.
1095 (diagnose_declaration_constraints): Turn on template processing to
1096 suppress certain analyses.
1097 * cp-objcp-common.c (cp_common_init_ts): Make concepts typed.
1098 (cp_get_debug_type): Use hash_map_safe_*.
1099 * cp-tree.h: New function declarations for semantic actions, other
1100 facilities. Remove declaration no longer used or needed. Remove
1101 unused _CONSTR macros.
1102 (LANG_DECL_HAS_MIN): Add CONCEPT_DECL.
1103 (template_info_decl_check): Factor macro check into an inline function.
1104 (DECL_TEMPLATE_INFO): Use new check facility.
1105 (finish_concept_definition): New. Don't invalid concept declarations
1106 with invalid initializers.
1107 (find_template_parameters): New.
1108 (concept_definition_p): New.
1109 (concept_check_p): New.
1110 (variable_concept_check_p): New.
1111 (force_paren_expr_uneval): New.
1112 (ovl_iterator::using_p): A USING_DECL by itself was also
1113 introduced by a using-declaration.
1114 (struct tree_template_info): Use tree_base instead of
1115 tree_common. Add tmpl and args fields.
1116 (TI_TEMPLATE, TI_ARGS): Adjust.
1117 (DECLTYPE_FOR_INIT_CAPTURE): Remove.
1118 (CONSTR_CHECK, CONSTR_INFO, CONSTR_EXPR, CONSTR_CONTEXT): New.
1119 (ATOMIC_CONSTR_MAP, TRAIT_EXPR_LOCATION): New.
1120 (struct tree_trait_expr): Add locus field.
1121 (enum tsubst_flags): Add tf_norm as a hint to generate normalization
1122 context when diagnosing constraint failure.
1123 * cp-tree.def: Remove unused _CONSTR nodes and rename PRED_CONSTR
1125 (CONCEPT_DECL): New.
1126 * cxx-pretty-print.c: Remove constraint printing code.
1127 (pp_cxx_concept_definition): New.
1128 (pp_cxx_template_declaration): Print concept definitions.
1129 (pp_cxx_check_constraint): Update printing for concept definitions.
1130 (pp_cxx_nested_name_specifier): Fix a weird
1131 case where we're printing '::::' for concepts.
1132 (simple_type_specifier): Print requirements for placeholder types.
1133 (pp_cxx_constrained_type_spec): Print the associated requirements of
1135 (pp_cxx_compound_requirement): Add space before the '->'.
1136 (pp_cxx_parameter_mapping): Print the parameter mapping.
1137 (pp_cxx_atomic_constraint): Use the function above.
1138 * decl.c (redeclaration_error_message): New error for concepts.
1139 (grokdeclarator): Check for and disallow decltype(auto) in parameter
1141 (grokfndecl): Don't normalize constraints. Add check for constraints
1143 (grokvardecl): Don't normalize constraints.
1144 (grok_special_member_properties): Don't set TYPE_HAS_COMPLEX_*.
1145 (function_requirements_equivalent_p): New. Compare trailing
1146 requires clauses. Compare combined constraints in pre-C++20 mode.
1147 (decls_match): Compare trailing requires clauses. Compare template
1148 heads for function templates. Remove old constraint comparison.
1149 Simplify comparison of functions, function templates.
1150 (duplicate_function_template_decls): New. Refactor a nasty if
1151 condition into a single predicate.
1152 (require_deduced_type): Don't complain if we already complained about
1154 (finish_function): Perform auto deduction to ensure that constraints
1155 are checked even when functions contain no return statements. Only do
1156 auto deduction if we haven't previously seen any return statements.
1157 This prevents multiple diagnostics of the same error.
1158 (store_decomp_type): Remove.
1159 (cp_finish_decomp): Use hash_map_safe_put.
1160 * error.c: Remove constraint printing code.
1161 (dump_decl): Dump concept definitions. Handle wildcard declarations.
1162 (dump_template_decl): Likewise.
1163 (dump_type): Print associated requirements for placeholder
1165 (rebuild_concept_check): New.
1166 (maybe_print_single_constraint_context): New.
1167 (maybe_print_constraint_context): Recursively print nested contexts.
1168 * init.c (get_nsdmi): Use hash_map_safe_*.
1169 * lambda.c (maybe_add_lambda_conv_op): Bail if deduction failed.
1170 (add_capture): Copy parameter packs from init.
1171 (lambda_capture_field_type): Always use auto for init-capture.
1172 * logic.cc: Completely rewrite.
1173 (constraint_hash): New.
1174 (clause/ctor): Save atoms in the hash table.
1175 (replace): Save atoms during replacement.
1176 (insert): Save atoms during insertion.
1177 (contains): Only search the hash table for containment.
1178 (clause): Keep a hash of atomic constraints.
1179 (clause::clause): Explicitly copy the hash table when copying.
1180 (disjunction_p, conjunction_p, atomic_p, dnf_size, cnf_size): New.
1181 (diagnose_constraint_size): New.
1182 (subsumes_constraints_nonnull): Compare the sizes of normalized formula
1183 to determine the cheapest decomposition.
1184 * name-lookup.c (diagnose_name_conflict): Diagnose name issues with
1186 (matching_fn_p): Check constraints.
1187 (push_class_level_binding_1): Move overloaded functions case down,
1188 accept FUNCTION_DECL as target_decl.
1189 * parser.c (enum required_token): New required token for auto.
1190 (make_location): Add overload taking lexer as last parm.
1191 (cp_parser_required_error): Diagnose missing auto.
1192 (cp_parser_diagnose_ungrouped_constraint_plain): New.
1193 (cp_parser_diagnose_ungrouped_constraint_plain): New.
1194 (cp_parser_constraint_primary_expression): New. Tentatively parse the
1195 primary expression. If that fails tentatively parse a lower
1196 precedence expression in order to diagnose the error.
1197 (cp_parser_check_non_logical_constraint): New. Performs a trial
1198 parse of the right-hand-side of non-logical operators in order to
1199 generate good diagnostics.
1200 (cp_parser_constraint_logical_and_expression): New.
1201 (cp_parser_constraint_logical_or_expression): New.
1202 (cp_parser_requires_clause_expression): New.
1203 (cp_parser_requires_clause): Renamed to cp_parser_constraint_expression.
1204 (cp_parser_requires_clause_opt): Parse the requires-clause differently
1205 in -fconcepts and -std=c++2a modes.
1206 (cp_parser_requirement_list): Rename to cp_parser_requirement_seq.
1207 Rewrite so that semicolons are parsed
1208 along with requirements, not the sequence.
1209 (cp_parser_simple_requirement): Expect a semicolon at end.
1210 (cp_parser_compound_requirement): Expect a semicolon at end. Only
1211 allow trailing-return-type with -fconcepts-ts.
1212 (cp_parser_nested_requirement): Expect a semicolon at end. Parse
1213 constraint-expressions.
1214 (cp_parser_concept_definition): New. Don't fail parsing the concept
1215 definition if the initializer is ill-formed. Don't declare the concept
1216 before parsing the initializer.
1217 (cp_parser_constraint_expression): Declare earlier.
1218 (cp_parser_type_requirement): Current scope is not valid.
1219 (cp_parser_requires_expression): Commit to the tentative parse.
1220 (cp_parser_decl_specifier_seq): Warn when concept appears to be used
1221 as a decl-specifier.
1222 (cp_parser_template_declaration_after_parameters): Parse concept
1224 (cp_parser_template_id): Don't try to resolve a concept template-id yet.
1225 (cp_parser_template_id_expr): Resolve it as a concept check.
1226 (cp_parser_decl_specifier_seq): Warn on 'concept bool'.
1227 (cp_parser_type_parameter): Combine expressions not
1229 (cp_parser_explicit_template_declaration): Combine expressions not
1231 (cp_parser_maybe_concept_name): Removed.
1232 (cp_parser_simple_type_specifier): Handle an error condition of
1233 a bad constrained type specifier. Expect auto or decltype after
1234 a concept name. Also handle the case where we have a template-id
1236 (cp_parser_template_introduction): Diagnose errors on invalid
1237 introductions. Give up if it doesn't start with a concept name.
1238 Pedwarn if not -fconcepts-ts.
1239 (synthesize_implicit_template_parm): Don't do consistent binding.
1240 Use a new flag for constrained parameters. Combine expressions,
1241 not constraints. Fail if we get a placeholder in block scope.
1242 Placeholders that do not constrain types are not allowed in parameter
1243 declarations, so don't handle them.
1244 (cp_parser_placeholder_type_specifier): New. Implement parsing of
1245 placeholder type specifiers following a concept name or partial
1246 concept check. Disallow decltype(auto) parameters.
1247 (cp_parser_nested_name_specifier_opt): If the token is already
1248 CPP_NESTED_NAME_SPECIFIER, leave it alone.
1249 (cp_parser_id_expression, cp_parser_unqualified_id): Call
1250 cp_parser_template_id_expr.
1251 (cp_parser_placeholder_type_specifier): Add tentative parm. Don't
1252 expect a WILDCARD_DECL.
1253 (cp_parser_trait_expr): Pass trait_loc down.
1254 (cp_parser_postfix_expression): Do set location of dependent member
1256 * pt.c (finish_concept_definition): New.
1257 (push_template_decl_real): Handle concept definitions.
1258 (start_concept_definition): Let push_template_decl_real handle the
1259 creation of the template.
1260 (get_constraints): Return null if the table hasn't been initialized.
1261 (tsubst_copy_and_build): Build template-id expressions for concept
1263 [TRAIT_EXPR]: Pass trait_loc down.
1264 (lookup_template_class_1): Add the template name to the constraint
1266 (lookup_and_finish_template_variable): Build concept checks
1267 with the correct arguments.
1268 (tsubst_function_decl): Don't substitute through constraints.
1269 Always associate constraints with functions.
1270 (template_parm_level_and_index): Make non-static.
1271 (for_each_template_parm_r): Handle requires expressions.
1272 (keep_template_parm): New.
1273 (find_template_parameters): New.
1274 (more_specialized_fn): Change how winners and losers are chosen.
1275 (make_constrained_auto): Don't normalize constraints.
1276 (template_parameters_equivalent_p): New. Compare template
1277 parameters. Add a comparison for implicitly vs. explicitly declared
1279 (template_parameter_lists_equivalent_p): New. Compare template
1281 (template_requirements_equivalent_p): New.
1282 (template_heads_equivalent_p): New. Compare template heads.
1283 (template_parameter_constraints_equivalent_p): New.
1284 (is_compatible_template_arg): Use weakly_subsumes.
1285 (maybe_new_partial_specialization): Use new constraint comparison
1286 for finding specializations.
1287 (process_partial_specialization): Pass main template as argument.
1288 (more_specialized_partial_spec): Don't immediately return when
1290 (make_constrained_auto): Handle concept definitions.
1291 (do_auto_deduction): Update auto deduction for new concept model.
1292 Extract the function concept correctly; rename constr to check to
1293 reflect the kind of node.
1294 (tsubst): Adjust wildcard argument during substitution.
1295 [DECLTYPE_TYPE]: Remove init-capture handling.
1296 (tsubst_copy_and_build): Build concept checks, not template ids.
1297 Defer checks of function concepts. Handle concepts before variable
1298 templates. Handle calls to function concepts explicitly.
1299 (coerce_template_parms): Use concept_definition_p. Handle a deduction
1300 error where a potentially empty pack can be supplied after the last
1301 parameter of a concept.
1302 (finish_template_variable): Don't process concepts here.
1303 (instantiation_dependent_r): Use concept_check_p.
1304 (tsubst_template_args): Make non-static.
1305 (make_constrained_placeholder_type): New. Refactored from
1306 make_constrained_auto.
1307 (make_constrained_auto) Use make_constrained_placeholder_type.
1308 (make_constrained_decltype_auto) New.
1309 (tsubst_function_parms): New.
1310 (value_dependent_expression_p) [TEMPLATE_ID_EXPR]: Use
1311 concept_definition_p.
1312 (push_access_scope, pop_access_scope): No longer static.
1313 (tsubst_template_parm): Substitute TEMPLATE_PARM_CONSTRAINTS.
1314 (tsubst_friend_function): Use tsubst_constraint. Use generic_targs_for.
1315 (get_underlying_template) Use generic_targs_for.
1316 (uses_parameter_packs): Return tree.
1317 (gen_elem_of_pack_expansion_instantiation): Don't push
1318 local_specialization_stack.
1319 (prepend_one_capture): New.
1320 (tsubst_lambda_expr): Use prepend_one_capture. Don't touch
1321 local_specializations.
1322 (template_parms_level_to_args): No longer static.
1323 (add_outermost_template_args): Likewise.
1324 (find_template_parameter_info): New. Provide context for finding
1325 template parameters.
1326 (keep_template_parm): Don't keep parameters declared at depth levels
1327 greater than those of the template parameters of the source declaration.
1328 Don't propagate cv-qualified types. Return 0, so we find all template
1329 parameters, not the just first.
1330 (any_template_parm_r): New. Handle cases that are mishandled by
1331 for_each_template_parm_r.
1332 (generic_targs_for): Factor out of coerce_template_args_for_ttp.
1333 (tsubst_argument_pack): Factor out of tsubst_template_args.
1334 (constraint_sat_entry): Removed.
1335 (constraint_sat_hasher): Removed.
1336 (concept_spec_entry): Removed.
1337 (concept_spec_hasher): Removed.
1338 (constraint_memos): Removed.
1339 (concept_memos): Removed.
1340 (lookup_constraint_satisfaction): Removed.
1341 (memoize_constraint_satisfaction): Removed.
1342 (lookup_concept_satisfaction): Removed.
1343 (memoize_concept_satisfaction): Removed.
1344 (concept_expansions): Removed.
1345 (get_concept_expansion): Removed.
1346 (save_concept_expansion): Removed.
1347 (init_constraint_processing): Remove initialization of non-existing
1349 (find_template_requirement): New. Search for the sub-requirement
1350 within the associated constraints.
1351 (convert_generic_types_to_packs): Also transform the associated
1352 constraint and update the current template requirements.
1353 (store_defaulted_ttp, lookup_defaulted_ttp): Remove.
1354 (add_defaults_to_ttp): Use hash_map_safe_*.
1355 * semantics.c (finish_call_expr): Diagnose calls to concepts.
1356 Handle concept checks explicitly.
1357 (finish_id_expression): Evaluate variable concepts as part of
1358 id-expression processing. Don't treat variable concepts as variables,
1359 and don't process function concepts as plain id-expressions.
1360 (force_paren_expr): Add even_uneval parm.
1361 (finish_trait_expr): Add location parm.
1362 * tree.c (special_memfn_p): New.
1363 (cp_expr_location): Handle TRAIT_EXPR.
1364 * typeck.c (check_return_expr): Actually use the diagnostic kind
1365 when performing return-type deduction.
1366 * typeck2.c (build_functional_cast): Don't rely on the location of
1369 2019-10-09 Paolo Carlini <paolo.carlini@oracle.com>
1371 * decl.c (grok_ctor_properties): Use DECL_SOURCE_LOCATION.
1372 * typeck.c (cp_build_binary_op): Use the op_location_t argument
1373 in many error messages.
1375 2019-10-08 Martin Sebor <msebor@redhat.com>
1378 * call.c (maybe_warn_class_memaccess): Handle arrays.
1380 2019-10-07 Paolo Carlini <paolo.carlini@oracle.com>
1382 * call.c (resolve_args): Use cp_expr_loc_or_input_loc in one place.
1383 * decl.c (grokdeclarator): Use id_loc in one place.
1384 * decl2.c (build_anon_union_vars): Use DECL_SOURCE_LOCATION.
1385 * parser.c (cp_parser_delete_expression): Fix the location of the
1386 returned expression.
1387 (cp_parser_throw_expression): Likewise.
1388 * pt.c (determine_specialization): Use DECL_SOURCE_LOCATION.
1390 2019-10-05 Jakub Jelinek <jakub@redhat.com>
1392 PR c++/91369 - Implement P0784R7: constexpr new
1393 * cp-tree.h (enum cp_tree_index): Add CPTI_HEAP_UNINIT_IDENTIFIER,
1394 CPTI_HEAP_IDENTIFIER and CPTI_HEAP_DELETED_IDENTIFIER.
1395 (heap_uninit_identifier, heap_identifier, heap_deleted_identifier):
1397 (type_has_constexpr_destructor, build_new_constexpr_heap_type,
1398 cxx_constant_dtor): Declare.
1399 * class.c (type_maybe_constexpr_default_constructor): Make static.
1400 (type_maybe_constexpr_destructor, type_has_constexpr_destructor): New
1402 (finalize_literal_type_property): For c++2a, don't clear
1403 CLASSTYPE_LITERAL_P for types without trivial destructors unless they
1404 have non-constexpr destructors.
1405 (explain_non_literal_class): For c++2a, complain about non-constexpr
1406 destructors rather than about non-trivial destructors.
1407 * constexpr.c: Include stor-layout.h.
1408 (struct constexpr_global_ctx): New type.
1409 (struct constexpr_ctx): Add global field, remove values and
1410 constexpr_ops_count.
1411 (cxx_replaceable_global_alloc_fn): New inline function.
1412 (cxx_eval_call_expression): For c++2a allow calls to replaceable
1413 global allocation functions, for new return address of a heap uninit
1414 var, for delete record its deletion. Change ctx->values->{get,put} to
1415 ctx->global->values.{get,put}.
1416 (non_const_var_error): Add auto_diagnostic_group sentinel. Emit
1417 special diagnostics for heap variables.
1418 (cxx_eval_store_expression): Change ctx->values->{get,put} to
1419 ctx->global->values.{get,put}.
1420 (cxx_eval_loop_expr): Initialize jump_target if NULL. Change
1421 new_ctx.values->remove to ctx->global->values.remove.
1422 (cxx_eval_constant_expression): Change *ctx->constexpr_ops_count
1423 to ctx->global->constexpr_ops_count. Change ctx->values->{get,put} to
1424 ctx->global->values.{get,put}.
1425 <case NOP_EXPR>: Formatting fix. On cast of replaceable global
1426 allocation function to some pointer type, adjust the type of
1427 the heap variable and change name from heap_uninit_identifier
1429 (find_heap_var_refs): New function.
1430 (cxx_eval_outermost_constant_expr): Add constexpr_dtor argument,
1431 handle evaluation of constexpr dtors and add tracking of heap
1432 variables. Use tf_no_cleanup for get_target_expr_with_sfinae.
1433 (cxx_constant_value): Adjust cxx_eval_outermost_constant_expr caller.
1434 (cxx_constant_dtor): New function.
1435 (maybe_constant_value, fold_non_dependent_expr_template,
1436 maybe_constant_init_1): Adjust cxx_eval_outermost_constant_expr
1438 (potential_constant_expression_1): Ignore clobbers. Allow
1439 COND_EXPR_IS_VEC_DELETE for c++2a.
1440 * decl.c (initialize_predefined_identifiers): Add heap identifiers.
1441 (decl_maybe_constant_destruction): New function.
1442 (cp_finish_decl): Don't clear TREE_READONLY for constexpr variables
1443 with non-trivial, but constexpr destructors.
1444 (register_dtor_fn): For constexpr variables with constexpr non-trivial
1445 destructors call cxx_maybe_build_cleanup instead of adding destructor
1447 (expand_static_init): For constexpr variables with constexpr
1448 non-trivial destructors call cxx_maybe_build_cleanup.
1449 (grokdeclarator): Allow constexpr destructors for c++2a. Formatting
1451 (cxx_maybe_build_cleanup): For constexpr variables with constexpr
1452 non-trivial destructors call cxx_constant_dtor instead of adding
1453 destructor calls at runtime.
1454 * init.c: Include stor-layout.h.
1455 (build_new_constexpr_heap_type, maybe_wrap_new_for_constexpr): New
1457 (build_new_1): For c++2a and new[], add cast around the alloc call
1458 to help constexpr evaluation figure out the type of the heap storage.
1459 (build_vec_delete_1): Set DECL_INITIAL of tbase and emit a DECL_EXPR
1460 for it instead of initializing an uninitialized variable.
1461 * method.c: Include intl.h.
1462 (SFK_CTOR_P, SFK_DTOR_P, SFK_ASSIGN_P, SFK_COPY_P, SFK_MOVE_P): Move
1463 definitions earlier.
1464 (process_subob_fn): Add sfk argument, adjust non-constexpr call
1465 diagnostics based on it.
1466 (walk_field_subobs): Formatting fixes. Adjust process_subob_fn caller.
1467 (synthesized_method_base_walk): Likewise.
1468 (synthesized_method_walk): Set *constexpr_p to true for dtors in c++2a.
1469 Fix up DR number in comment.
1470 (implicitly_declare_fn): Formatting fix.
1471 * typeck2.c (store_init_value): Don't call cp_fully_fold_init on
1472 initializers of automatic non-constexpr variables in constexpr
1475 2019-10-04 Jakub Jelinek <jakub@redhat.com>
1478 * constexpr.c (cxx_fold_indirect_ref_1): New function.
1479 (cxx_fold_indirect_ref): Use it.
1482 * cp-gimplify.c (cp_gimplify_expr) <case CALL_EXPR>: For
1483 -fstrong-eval-order ensure CALL_EXPR_FN side-effects are evaluated
1484 before any arguments. Additionally, ensure CALL_EXPR_FN that isn't
1485 invariant nor OBJ_TYPE_REF nor SSA_NAME is forced into a temporary.
1487 2019-10-03 Paolo Carlini <paolo.carlini@oracle.com>
1489 * init.c (build_new): Use cp_expr_loc_or_input_loc in two places.
1490 * name-lookup.c (do_pushdecl): Use DECL_SOURCE_LOCATION.
1491 (push_class_level_binding_1): Likewise.
1492 (set_decl_namespace): Likewise.
1494 2019-10-03 Jakub Jelinek <jakub@redhat.com>
1496 * constexpr.c (cxx_eval_constant_expression) <case CLEANUP_STMT>: If
1497 not skipping upon entry to body, run cleanup with the same *jump_target
1498 as it started to run the cleanup even if the body returns, breaks or
1500 (potential_constant_expression_1): Allow CLEANUP_STMT.
1502 * constexpr.c (cxx_eval_store_expression): Formatting fix. Handle
1503 const_object_being_modified with array type.
1505 2019-10-02 Jason Merrill <jason@redhat.com>
1507 * typeck2.c (store_init_value): Only clear_cv_and_fold_caches if the
1510 2019-09-30 Jason Merrill <jason@redhat.com>
1512 Use hash_map_safe_* functions.
1513 * constexpr.c (maybe_initialize_fundef_copies_table): Remove.
1514 (get_fundef_copy): Use hash_map_safe_get_or_insert.
1515 * cp-objcp-common.c (cp_get_debug_type): Use hash_map_safe_*.
1516 * decl.c (store_decomp_type): Remove.
1517 (cp_finish_decomp): Use hash_map_safe_put.
1518 * init.c (get_nsdmi): Use hash_map_safe_*.
1519 * pt.c (store_defaulted_ttp, lookup_defaulted_ttp): Remove.
1520 (add_defaults_to_ttp): Use hash_map_safe_*.
1522 2019-10-02 Richard Biener <rguenther@suse.de>
1525 * decl.c (build_ptrmemfunc_type): Mark pointer-to-member
1526 fat pointer structure members as DECL_NONADDRESSABLE_P.
1528 2019-09-28 Marek Polacek <polacek@redhat.com>
1530 PR c++/91889 - follow-up fix for DR 2352.
1531 * call.c (involves_qualification_conversion_p): New function.
1532 (direct_reference_binding): Build a ck_qual if the conversion
1533 would involve a qualification conversion.
1534 (convert_like_real): Strip the conversion created by the ck_qual
1535 in direct_reference_binding.
1537 PR c++/91921 - stray warning with -Woverloaded-virtual.
1538 * class.c (warn_hidden): Only emit the second part of
1539 -Woverloaded-virtual if the first part was issued. Use inform instead
1542 PR c++/91923 - failure-to-SFINAE with class type NTTP in C++17.
1543 * pt.c (invalid_nontype_parm_type_p): Only emit errors when
1546 2019-09-27 Jakub Jelinek <jakub@redhat.com>
1549 * parser.c (cp_parser_omp_var_list_no_open): Parse predefined
1551 * semantics.c (finish_omp_clauses): Allow predefined variables in
1552 shared and firstprivate clauses, even when they are predetermined
1554 * cp-gimplify.c (cxx_omp_predetermined_sharing_1): Return
1555 OMP_CLAUSE_DEFAULT_SHARED for predefined variables.
1557 2019-09-27 Jason Merrill <jason@redhat.com>
1559 * constexpr.c (cxx_fold_indirect_ref): Use similar_type_p.
1560 (cxx_eval_indirect_ref): Likewise. Improve error location.
1562 * cp-tree.h (class iloc_sentinel): New.
1563 * decl.c (grokdeclarator, finish_enum_value_list): Use it.
1564 * mangle.c (mangle_decl_string): Use it.
1565 * pt.c (perform_typedefs_access_check): Use it.
1567 2019-09-27 Richard Sandiford <richard.sandiford@arm.com>
1569 * cp-tree.h (build_cxx_call): Take the original function decl
1570 as an optional final parameter.
1571 (cp_build_function_call_vec): Likewise.
1572 * call.c (build_cxx_call): Likewise. Pass all built-in calls to
1573 check_builtin_function_arguments.
1574 * typeck.c (build_function_call_vec): Take the original function
1575 decl as an optional final parameter and pass it to
1576 cp_build_function_call_vec.
1577 (cp_build_function_call_vec): Take the original function
1578 decl as an optional final parameter and pass it to build_cxx_call.
1580 2019-09-25 Marek Polacek <polacek@redhat.com>
1582 PR c++/91877 - ICE with converting member of packed struct.
1583 * call.c (convert_like_real): Use similar_type_p in an assert.
1585 2019-09-25 Paolo Carlini <paolo.carlini@oracle.com>
1587 * name-lookup.c (check_extern_c_conflict): Use DECL_SOURCE_LOCATION.
1588 (check_local_shadow): Use it in three additional places.
1590 2019-09-24 Jason Merrill <jason@redhat.com>
1592 * parser.c (cp_parser_postfix_expression): Do set location of
1593 dependent member call.
1595 2019-09-24 Marek Polacek <polacek@redhat.com>
1597 PR c++/91868 - improve -Wshadow location.
1598 * name-lookup.c (check_local_shadow): Use DECL_SOURCE_LOCATION
1599 instead of input_location.
1601 PR c++/91845 - ICE with invalid pointer-to-member.
1602 * expr.c (mark_use): Use error_operand_p.
1603 * typeck2.c (build_m_component_ref): Check error_operand_p after
1604 calling mark_[lr]value_use.
1606 2019-09-23 Paolo Carlini <paolo.carlini@oracle.com>
1608 * pt.c (check_explicit_specialization): Use cp_expr_loc_or_input_loc.
1609 (process_partial_specialization): Likewise.
1610 (convert_nontype_argument_function): Likewise.
1611 (invalid_tparm_referent_p): Likewise.
1612 (convert_template_argument): Likewise.
1613 (check_valid_ptrmem_cst_expr): Tidy.
1615 2019-09-23 Jason Merrill <jason@redhat.com>
1617 PR c++/91809 - bit-field and ellipsis.
1618 * call.c (convert_arg_to_ellipsis): Don't call decay_conversion for
1619 arithmetic arguments.
1621 2019-09-23 Marek Polacek <polacek@redhat.com>
1623 PR c++/91844 - Implement CWG 2352, Similar types and reference binding.
1624 * call.c (reference_related_p): Use similar_type_p instead of
1626 (reference_compatible_p): Update implementation to match CWG 2352.
1627 * cp-tree.h (similar_type_p): Declare.
1628 * typeck.c (similar_type_p): New.
1630 2019-09-22 Marek Polacek <polacek@redhat.com>
1632 PR c++/91819 - ICE with operator++ and enum.
1633 * call.c (build_new_op_1): Set arg2_type.
1635 2019-09-17 Jason Merrill <jason@redhat.com>
1637 * parser.c (cp_parser_statement): Handle [[likely]] on
1640 2019-09-19 Jason Merrill <jason@redhat.com>
1643 * call.c (build_new_op_1): Don't apply any standard conversions to
1644 the operands of a built-in operator. Don't suppress conversions in
1646 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
1648 2019-09-16 Paolo Carlini <paolo.carlini@oracle.com>
1650 * decl.c (grokdeclarator): Use declspecs->locations and
1651 declarator->id_loc in a few error messages.
1652 * pt.c (finish_member_template_decl): Use DECL_SOURCE_LOCATION.
1653 (push_template_decl_real): Likewise.
1655 2019-09-15 Jason Merrill <jason@redhat.com>
1657 PR c++/30277 - int-width bit-field promotion.
1658 PR c++/33819 - long bit-field promotion.
1659 * typeck.c (cp_perform_integral_promotions): Handle large bit-fields
1660 properly. Handle 32-bit non-int bit-fields properly.
1661 (is_bitfield_expr_with_lowered_type): Don't look through NOP_EXPR.
1663 PR c++/82165 - enum bitfields and operator overloading.
1664 * call.c (build_new_op_1): Use unlowered_expr_type.
1666 * call.c (build_new_op_1): Don't apply any standard conversions to
1667 the operands of a built-in operator. Don't suppress conversions in
1669 * typeck.c (cp_build_unary_op): Do integral promotions for enums.
1671 2019-09-15 Marek Polacek <polacek@redhat.com>
1673 PR c++/91740 - ICE with constexpr call and ?: in ARRAY_REF.
1674 * pt.c (build_non_dependent_expr): Call build_non_dependent_expr for
1677 2019-09-15 Nathan Sidwell <nathan@acm.org>
1679 * cp-tree.h (DECL_CLONED_FUNCTION_P): Reimplement using
1680 IDENTIFIER_CDTOR_P, correct documentation.
1681 (DECL_CLONED_FUNCTION): Directly access field.
1682 (decl_cloned_function_p): Delete.
1683 * class.c (decl_cloned_function_p): Delete.
1684 * pt.c (instantiate_template_1): Check DECL_CHAIN is a decl.
1686 2019-09-11 Nathan Sidwell <nathan@acm.org>
1688 * c-objcp-common.c (cp-objcp-common.c): Alphababetize and
1689 correctly mark all C++ nodes.
1690 * decl.c (cp_tree_node_structure): Alphabetize.
1692 2019-09-10 Marek Polacek <polacek@redhat.com>
1694 PR c++/91673 - ICE with noexcept in alias-declaration.
1695 * parser.c (CP_PARSER_FLAGS_DELAY_NOEXCEPT): New parser flag.
1696 (cp_parser_lambda_declarator_opt): Pass CP_PARSER_FLAGS_NONE to
1697 cp_parser_exception_specification_opt.
1698 (cp_parser_direct_declarator): Adjust a call to
1699 cp_parser_exception_specification_opt.
1700 (cp_parser_member_declaration): Pass CP_PARSER_FLAGS_DELAY_NOEXCEPT
1701 to cp_parser_declarator if not processing a friend or typedef
1703 (cp_parser_late_noexcept_specifier): Adjust a call to
1704 cp_parser_noexcept_specification_opt.
1705 (cp_parser_noexcept_specification_opt): New parameter for parser flags,
1706 drop the FRIEND_P parameter. Use the new parameter.
1707 (cp_parser_exception_specification_opt): Likewise.
1708 (cp_parser_transaction): Adjust a call to
1709 cp_parser_noexcept_specification_opt.
1710 (cp_parser_transaction_expression): Likewise.
1712 2019-09-10 Marek Polacek <polacek@redhat.com>
1714 PR c++/91705 - constexpr evaluation rejects ++/-- on floats.
1715 * constexpr.c (cxx_eval_increment_expression): Call fold_simple on
1718 2019-09-10 Paolo Carlini <paolo.carlini@oracle.com>
1720 * decl.c (has_designator_problem): Use cp_expr_loc_or_input_loc
1722 (build_enumerator): Likewise.
1723 (cp_finish_decl): Use DECL_SOURCE_LOCATION.
1724 (grokdeclarator): Use id_loc in two error_at; change errror
1725 message about constinit together constexpr to use two ranges.
1727 2019-09-09 Marek Polacek <polacek@redhat.com>
1729 PR c++/84374 - diagnose invalid uses of decltype(auto).
1730 * decl.c (grokdeclarator): Diagnose wrong usage of decltype(auto) in
1731 a function declaration.
1733 2019-09-06 Nathan Sidwell <nathan@acm.org>
1736 * cp-tree.h (IDENTIFIER_REPO_CHOSEN, DECL_REPO_AVAILABLE_P): Delete.
1737 (struct lang_decl_base): Remove repo_available_p.
1738 * decl.c (duplicate_decls): Don't copy DECL_REPO_AVAILABLE_P.
1740 (Reserve TREE_LANG_FLAG_3 for modules.
1741 * cp-tree.h (DECL_CONSTRUCTION_VTABLE_P): Delete.
1742 (DECL_NON_TRIVIALLY_INITIALIZED_P): Move to TREE_LANG_FLAG_6.
1743 * class.c (build_ctor_vtbl_group): Don't set
1744 DECL_CONSTRUCTION_VTABLE_P.
1745 * decl2.c (determine_visibility_from_class): Don't check
1746 DECL_CONSTRUCTION_VTABLE_P anymore.
1748 2019-09-06 Martin Liska <mliska@suse.cz>
1751 * Make-lang.in: Remove repo.o.
1752 * config-lang.in: Likewise.
1753 * cp-tree.h (init_repo): Remove declarations
1754 of repo-related functions.
1755 (repo_emit_p): Likewise.
1756 (repo_export_class_p): Likewise.
1757 (finish_repo): Likewise.
1758 * decl2.c (import_export_class): Always
1760 (mark_needed): Remove -frepo from comment.
1761 (import_export_decl): Similarly here.
1762 (c_parse_final_cleanups): Remove call of finish_repo.
1763 * lex.c (cxx_init): Remove call to init_repo.
1764 * optimize.c (can_alias_cdtor): Remove dead condition.
1765 * pt.c (push_template_decl_real): Update comment.
1766 (instantiate_decl): Remove dead code used for -frepo.
1769 2019-09-05 Marek Polacek <polacek@redhat.com>
1771 PR c++/91644 - ICE with constinit in function template.
1772 * decl.c (start_decl): Call retrofit_lang_decl for constinit variables.
1773 * pt.c (tsubst_expr): Pass LOOKUP_CONSTINIT down to cp_finish_decl for
1774 constinit variables.
1776 2019-09-05 Nathan Sidwell <nathan@acm.org>
1778 * cp-tree.h (DECL_VTABLE_OR_VTT_P): Forward to DECL_VIRTUAL_P.
1780 2019-09-04 Marek Polacek <polacek@redhat.com>
1782 * call.c (build_over_call): Remove -fdeduce-init-list implementation.
1783 * pt.c (unify): Likewise.
1785 2019-09-01 Marek Polacek <polacek@redhat.com>
1787 PR c++/91129 - wrong error with binary op in template argument.
1788 * typeck.c (warn_for_null_address): Use fold_for_warn instead of
1789 fold_non_dependent_expr.
1790 (cp_build_binary_op): Likewise.
1792 2019-08-30 Jason Merrill <jason@redhat.com>
1794 Add source location to TRAIT_EXPR.
1795 * cp-tree.h (TRAIT_EXPR_LOCATION): New.
1796 (struct tree_trait_expr): Add locus field.
1797 * parser.c (cp_parser_trait_expr): Pass trait_loc down.
1798 * pt.c (tsubst_copy_and_build) [TRAIT_EXPR]: Likewise.
1799 * semantics.c (finish_trait_expr): Add location parm.
1800 * tree.c (cp_expr_location): Handle TRAIT_EXPR.
1802 2019-08-29 Paolo Carlini <paolo.carlini@oracle.com>
1804 * decl.c (check_var_type): Add location_t parameter and use it.
1805 (grokdeclarator): Adjust call.
1806 * pt.c (tsubst_decl): Likewise.
1807 * cp-tree.h: Adjust declaration.
1809 2019-08-28 Marek Polacek <polacek@redhat.com>
1811 Implement P1152R4: Deprecating some uses of volatile.
1813 * cp-gimplify.c (cp_fold): Set TREE_THIS_VOLATILE.
1814 * decl.c (grokdeclarator): Warn about a volatile-qualified structured
1815 binding and return type.
1816 (grokparms): Warn about a volatile-qualified function parameter.
1817 * expr.c (mark_use) <case MODIFY_EXPR>: Emit a -Wvolatile warning.
1818 * typeck.c (cp_build_unary_op): Emit a -Wvolatile warning for pre and
1819 post ++/-- on a volatile operand.
1820 (genericize_compound_lvalue): Use a better location. Don't lose
1822 (cp_build_modify_expr): Emit a -Wvolatile warning for a compound
1823 assignment whose LHS is volatile-qualified. Build the assignment with
1824 a more precise location.
1826 2019-08-28 Marek Polacek <polacek@redhat.com>
1828 PR c++/91360 - Implement C++20 P1143R2: constinit.
1829 * cp-tree.h (TINFO_VAR_DECLARED_CONSTINIT): Define.
1830 (LOOKUP_CONSTINIT): Define.
1831 (enum cp_decl_spec): Add ds_constinit.
1832 * decl.c (check_tag_decl): Give an error for constinit in type
1834 (check_initializer): Also check LOOKUP_CONSTINIT.
1835 (cp_finish_decl): Add checking for a constinit declaration. Set
1836 TINFO_VAR_DECLARED_CONSTINIT.
1837 (grokdeclarator): Add checking for a declaration with the constinit
1839 * lex.c (init_reswords): Handle D_CXX20.
1840 * parser.c (cp_lexer_get_preprocessor_token): Pass a better location
1841 to warning_at. Warn about C++20 keywords.
1842 (cp_keyword_starts_decl_specifier_p): Handle RID_CONSTINIT.
1843 (cp_parser_diagnose_invalid_type_name): Add an inform about constinit.
1844 (cp_parser_decomposition_declaration): Maybe pass LOOKUP_CONSTINIT to
1846 (cp_parser_decl_specifier_seq): Handle RID_CONSTINIT.
1847 (cp_parser_init_declarator): Maybe pass LOOKUP_CONSTINIT to
1849 (set_and_check_decl_spec_loc): Add "constinit".
1850 * pt.c (tsubst_decl): Set TINFO_VAR_DECLARED_CONSTINIT.
1851 (instantiate_decl): Maybe pass LOOKUP_CONSTINIT to cp_finish_decl.
1852 * typeck2.c (store_init_value): If a constinit variable wasn't
1853 initialized using a constant initializer, give an error.
1855 2019-08-28 Nathan Sidwell <nathan@acm.org>
1858 * name-lookup.c (cp_emit_debug_info): Check for builtins during
1861 2019-08-27 Marek Polacek <polacek@redhat.com>
1863 PR c++/81676 - bogus -Wunused warnings in constexpr if.
1864 * semantics.c (maybe_mark_exp_read_r): New function.
1865 (finish_if_stmt): Call it on THEN_CLAUSE and ELSE_CLAUSE.
1867 PR c++/91428 - warn about std::is_constant_evaluated in if constexpr.
1868 * cp-tree.h (decl_in_std_namespace_p): Declare.
1869 * semantics.c (is_std_constant_evaluated_p): New.
1870 (finish_if_stmt_cond): Warn about "std::is_constant_evaluated ()" in
1872 * typeck.c (decl_in_std_namespace_p): No longer static.
1874 2019-08-26 Jason Merrill <jason@redhat.com>
1876 * decl.c (duplicate_decls): Always merge DECL_DECLARED_CONSTEXPR_P.
1878 2019-08-26 Marek Polacek <polacek@redhat.com>
1880 PR c++/91545 - ICE in constexpr store evaluation.
1881 * constexpr.c (cxx_eval_store_expression): Check FIELD_DECL instead
1884 2019-08-24 Nathan Sidwell <nathan@acm.org>
1886 * class.c (check_for_overrides): Conversion operators need
1889 2019-08-24 Paolo Carlini <paolo.carlini@oracle.com>
1891 * semantics.c (finish_switch_cond): Improve error message location.
1893 2019-08-23 Jason Merrill <jason@redhat.com>
1895 * decl2.c (decl_dependent_p): New.
1896 (mark_used): Check it instead of just processing_template_decl.
1898 2019-08-23 Jason Merrill <jason@redhat.com>
1900 * parser.c (cp_parser_nested_name_specifier_opt): Avoid redundant
1903 2019-08-23 Marek Polacek <polacek@redhat.com>
1905 PR c++/91521 - wrong error with operator->.
1906 * decl.c (grokdeclarator): Return error_mark_node for an invalid
1907 trailing return type.
1909 PR c++/79817 - attribute deprecated on namespace.
1910 * cp-tree.h (cp_warn_deprecated_use_scopes): Declare.
1911 * decl.c (grokdeclarator): Call cp_warn_deprecated_use_scopes.
1912 (type_is_deprecated): Likewise.
1913 * decl2.c (cp_warn_deprecated_use_scopes): New function.
1914 * name-lookup.c (handle_namespace_attrs): Handle attribute deprecated.
1915 * parser.c (cp_parser_namespace_alias_definition): Call
1916 cp_warn_deprecated_use_scopes.
1917 (cp_parser_using_declaration): Likewise.
1918 (cp_parser_using_directive): Likewise.
1919 * semantics.c (finish_id_expression_1): Likewise.
1921 2019-08-23 Nathan Sidwell <nathan@acm.org>
1923 * class.c (check_for_override): Checking IDENTIFIER_VIRTUAL_P is
1924 sufficient, reorder DECL_OVERRIDE_P check.
1926 2019-08-23 Iain Sandoe <iain@sandoe.co.uk>
1929 * parser.c (cp_parser_initial_pragma): Call c_common_no_more_pch ()
1930 after determining that the first token is not
1931 PRAGMA_GCC_PCH_PREPROCESS.
1933 2019-08-22 Marek Polacek <polacek@redhat.com>
1935 PR c++/91304 - prefix attributes ignored in condition.
1936 * parser.c (cp_parser_condition): Handle prefix attributes.
1938 2019-08-21 Richard Sandiford <richard.sandiford@arm.com>
1941 * decl.c (duplicate_decls): Call copy_attributes_to_builtin inside
1942 the BUILT_IN_NORMAL block rather than afterward.
1944 2019-08-19 Marek Polacek <polacek@redhat.com>
1946 PR c++/91264 - detect modifying const objects in constexpr.
1947 * constexpr.c (modifying_const_object_error): New function.
1948 (cxx_eval_call_expression): Set TREE_READONLY on a CONSTRUCTOR of
1949 a const-qualified object after it's been fully constructed.
1950 (modifying_const_object_p): New function.
1951 (cxx_eval_store_expression): Detect modifying a const object
1952 during constant expression evaluation.
1953 (cxx_eval_increment_expression): Use a better location when building
1955 (cxx_eval_constant_expression) <case DECL_EXPR>: Mark a constant
1956 object's constructor TREE_READONLY.
1958 2019-08-15 Jason Merrill <jason@redhat.com>
1960 PR c++/90393 - ICE with thow in ?:
1962 PR c++/64372, DR 1560 - Gratuitous lvalue-to-rvalue conversion in ?:
1963 * tree.c (lvalue_kind): Handle throw in one arm.
1964 * typeck.c (rationalize_conditional_expr): Likewise.
1965 (cp_build_modify_expr): Likewise.
1967 2019-08-14 Jason Merrill <jason@redhat.com>
1969 Implement P0848R3, Conditionally Trivial Special Member Functions.
1970 * tree.c (special_memfn_p): New.
1971 * class.c (add_method): When overloading, hide ineligible special
1973 (check_methods): Set TYPE_HAS_COMPLEX_* here.
1974 * decl.c (grok_special_member_properties): Not here.
1975 * name-lookup.c (push_class_level_binding_1): Move overloaded
1976 functions case down, accept FUNCTION_DECL as target_decl.
1978 2019-08-14 Jonathan Wakely <jwakely@redhat.com>
1981 * name-lookup.c (get_std_name_hint): Fix min_dialect field for
1982 complex_literals and make_unique entries.
1984 2019-08-14 Jakub Jelinek <jakub@redhat.com>
1985 Marek Polacek <polacek@redhat.com>
1987 PR c++/91391 - bogus -Wcomma-subscript warning.
1988 * parser.c (cp_parser_postfix_open_square_expression): Don't warn about
1989 a deprecated comma here. Pass warn_comma_subscript down to
1990 cp_parser_expression.
1991 (cp_parser_expression): New bool parameter. Warn about uses of a comma
1992 operator within a subscripting expression.
1993 (cp_parser_skip_to_closing_square_bracket): Revert to pre-r274121 state.
1994 (cp_parser_skip_to_closing_square_bracket_1): Remove.
1996 2019-08-14 Jonathan Wakely <jwakely@redhat.com>
1998 * name-lookup.c (get_std_name_hint): Add more entries.
2000 2019-08-14 Paolo Carlini <paolo.carlini@oracle.com>
2002 * decl2.c (grok_array_decl): Use the location of the open square
2003 bracket in error message about invalid types.
2005 2019-08-14 Paolo Carlini <paolo.carlini@oracle.com>
2007 * decl.c (grokdeclarator): Check here for typedef a function
2008 definition or a member function definition.
2009 (start_function): Adjust.
2010 (grokmethod): Likewise.
2012 2019-08-13 Richard Sandiford <richard.sandiford@arm.com>
2015 * decl.c (duplicate_decls): Use copy_decl_built_in_function.
2016 * pt.c (declare_integer_pack): Use set_decl_built_in_function.
2018 2019-08-13 Marek Polacek <polacek@redhat.com>
2020 PR c++/90473 - wrong code with nullptr in default argument.
2021 * call.c (null_ptr_cst_p): Update quote from the standard.
2022 * decl.c (check_default_argument): Don't return nullptr when the arg
2025 2019-08-13 Marek Polacek <polacek@redhat.com>
2027 * cp-tree.h (DECL_MUTABLE_P): Use FIELD_DECL_CHECK.
2029 2019-08-10 Jakub Jelinek <jakub@redhat.com>
2031 * parser.c (cp_parser_omp_clause_name): Parse device_type.
2032 (cp_parser_omp_clause_device_type): New function.
2033 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
2034 (OMP_DECLARE_TARGET_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
2035 (cp_parser_omp_declare_target): Handle device_type clauses. Remove
2036 diagnostics for declare target with clauses nested in clause-less
2037 declare target declaration-definition-seq.
2038 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_DEVICE_TYPE.
2040 2019-08-09 Jakub Jelinek <jakub@redhat.com>
2042 * parser.c (check_no_duplicate_clause): Simplify using
2044 (cp_parser_omp_clause_if): Fix up printing of target {enter,exit} data
2045 directive name modifiers.
2048 * parser.c (cp_parser_omp_clause_dist_schedule): Comment out the
2049 check_no_duplicate_clause call, instead emit a warning for duplicate
2050 dist_schedule clauses.
2052 2019-08-08 Paolo Carlini <paolo.carlini@oracle.com>
2054 * decl.c (grokdeclarator): Use id_loc and EXPR_LOCATION in
2055 a few error messages.
2057 2019-08-08 Marek Polacek <polacek@redhat.com>
2059 PR c++/87519 - bogus warning with -Wsign-conversion.
2060 * typeck.c (cp_build_binary_op): Use same_type_p instead of comparing
2063 * constexpr.c (inline_asm_in_constexpr_error): New.
2064 (cxx_eval_constant_expression) <case ASM_EXPR>: Call it.
2065 (potential_constant_expression_1) <case ASM_EXPR>: Likewise.
2067 2019-08-08 Jakub Jelinek <jakub@redhat.com>
2069 * semantics.c (finish_omp_clauses): For C_ORT_OMP
2070 OMP_CLAUSE_USE_DEVICE_* clauses use oacc_reduction_head bitmap
2071 instead of generic_head to track duplicates.
2073 2019-08-07 Marek Polacek <polacek@redhat.com>
2075 PR c++/81429 - wrong parsing of constructor with C++11 attribute.
2076 * parser.c (cp_parser_constructor_declarator_p): Handle the scenario
2077 when a parameter declaration begins with [[attribute]].
2079 2019-08-07 Marek Polacek <polacek@redhat.com>
2081 PR c++/91346 - Implement P1668R1, allow unevaluated asm in constexpr.
2082 * constexpr.c (cxx_eval_constant_expression): Handle ASM_EXPR.
2083 (potential_constant_expression_1) <case ASM_EXPR>: Allow.
2084 * cp-tree.h (finish_asm_stmt): Adjust.
2085 * parser.c (cp_parser_asm_definition): Grab the locaion of "asm" and
2086 use it. Change an error to a pedwarn. Allow asm in C++2a, warn
2088 * pt.c (tsubst_expr): Pass a location down to finish_asm_stmt.
2089 * semantics.c (finish_asm_stmt): New location_t parameter. Use it.
2091 2019-08-07 Jakub Jelinek <jakub@redhat.com>
2093 * parser.c (cp_parser_omp_clause_name): Parse use_device_addr clause.
2094 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
2095 (OMP_TARGET_DATA_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR.
2096 (cp_parser_omp_target_data): Handle PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR
2097 like PRAGMA_OMP_CLAUSE_USE_DEVICE_PTR, adjust diagnostics about no
2098 map or use_device_* clauses.
2099 * semantics.c (finish_omp_clauses): For OMP_CLAUSE_USE_DEVICE_PTR
2100 in OpenMP, require pointer or reference to pointer type rather than
2101 pointer or array or reference to pointer or array type. Handle
2102 OMP_CLAUSE_USE_DEVICE_ADDR.
2103 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_USE_DEVICE_ADDR.
2105 2019-08-06 Jason Merrill <jason@redhat.com>
2107 PR c++/91378 - ICE with noexcept and auto return type.
2108 * pt.c (maybe_instantiate_noexcept): push_to_top_level.
2110 2019-08-06 Paolo Carlini <paolo.carlini@oracle.com>
2112 * decl.c (check_array_designated_initializer): Use
2113 cp_expr_loc_or_input_loc in one place.
2115 2019-08-06 Jakub Jelinek <jakub@redhat.com>
2117 * parser.c (cp_parser_omp_for_loop): For OMP_LOOP, ignore parallel
2118 clauses and predetermine iterator as lastprivate.
2119 * semantics.c (handle_omp_for_class_iterator): Use
2120 OMP_CLAUSE_LASTPRIVATE_LOOP_IV instead of
2121 OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV, set it for lastprivate also
2122 on OMP_LOOP construct. If a clause is missing for class iterator
2123 on OMP_LOOP, add firstprivate clause, and if there is private
2124 clause, turn it into firstprivate too.
2125 (finish_omp_for): Formatting fix. For OMP_LOOP, adjust
2126 OMP_CLAUSE_LASTPRIVATE_LOOP_IV clause CP_CLAUSE_INFO, so that it
2127 uses copy ctor instead of default ctor.
2128 * cp-gimplify.c (cp_gimplify_expr): Handle OMP_LOOP like
2130 (cp_fold_r): Likewise.
2131 (cp_genericize_r): Likewise.
2132 (cxx_omp_finish_clause): Also finish lastprivate clause with
2133 OMP_CLAUSE_LASTPRIVATE_LOOP_IV flag.
2134 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_BIND.
2135 (tsubst_omp_for_iterator): For OMP_LOOP, ignore parallel
2136 clauses and predetermine iterator as lastprivate.
2137 * constexpr.c (potential_constant_expression_1): Handle OMP_LOOP
2138 like OMP_DISTRIBUTE etc.
2140 2019-08-05 Marek Polacek <polacek@redhat.com>
2142 DR 2413 - typename in conversion-function-ids.
2143 * parser.c (cp_parser_conversion_type_id): Call
2144 cp_parser_type_specifier_seq with CP_PARSER_FLAGS_TYPENAME_OPTIONAL
2145 instead of CP_PARSER_FLAGS_NONE.
2147 2019-08-05 Paolo Carlini <paolo.carlini@oracle.com>
2149 * cp-tree.h (cp_expr_loc_or_input_loc): New.
2150 (cxx_incomplete_type_diagnostic): Use it.
2151 * call.c (build_converted_constant_expr_internal, convert_like_real,
2152 convert_arg_to_ellipsis, convert_for_arg_passing, build_over_call,
2153 build_cxx_call, perform_implicit_conversion_flags,
2154 initialize_reference): Likewise.
2155 * constexpr.c (cxx_eval_internal_function, cxx_eval_call_expression,
2156 eval_and_check_array_index, cxx_eval_store_expression,
2157 cxx_eval_statement_list, cxx_eval_loop_expr,
2158 cxx_eval_constant_expression, potential_constant_expression_1):
2160 * constraint.cc (check_for_logical_overloads,
2161 satisfy_predicate_constraint): Likewise.
2162 * cp-gimplify.c (cp_gimplify_expr): Likewise.
2163 * cvt.c (cp_convert_to_pointer, convert_to_reference,
2164 cp_convert_and_check, ocp_convert, maybe_warn_nodiscard): Likewise.
2165 * decl.c (pop_switch): Likewise.
2166 * decl2.c (delete_sanity): Likewise.
2167 * error.c (location_of): Likewise.
2168 * init.c (maybe_warn_list_ctor, build_aggr_init,
2169 warn_placement_new_too_small, build_new_1, build_vec_init): Likewise.
2170 * lex.c (unqualified_name_lookup_error): Likewise.
2171 * parser.c (cp_parser_initializer_list, cp_parser_omp_for_cond):
2173 * pt.c (check_for_bare_parameter_packs, check_valid_ptrmem_cst_expr,
2174 unify_arg_conversion, convert_nontype_argument,
2175 tsubst_copy_and_build, resolve_typename_type): Likewise.
2176 * semantics.c (maybe_convert_cond, finish_call_expr,
2177 cp_build_vec_convert): Likewise.
2178 * typeck.c (decay_conversion, rationalize_conditional_expr,
2179 cp_build_unary_op, build_x_compound_expr_from_list,
2180 maybe_warn_about_returning_address_of_local,
2181 maybe_warn_pessimizing_move): Likewise.
2182 * typeck2.c (check_narrowing, digest_init_r,
2183 process_init_constructor_array): Likewise.
2185 2019-08-05 Tom Honermann <tom@honermann.net>
2187 * parser.c (cp_parser_template_declaration_after_parameters): Enable
2188 class template argument deduction for non-type template parameters
2189 in literal operator templates.
2191 2019-08-05 Marek Polacek <polacek@redhat.com>
2193 PR c++/91338 - Implement P1161R3: Deprecate a[b,c].
2194 * parser.c (cp_parser_postfix_open_square_expression): Warn about uses
2195 of a comma operator within a subscripting expression.
2196 (cp_parser_skip_to_closing_square_bracket_1): New function, made out
2198 (cp_parser_skip_to_closing_square_bracket): ...this.
2200 2019-08-05 Jason Merrill <jason@redhat.com>
2202 * semantics.c (force_paren_expr): Preserve location.
2204 2019-08-02 Marek Polacek <polacek@redhat.com>
2206 PR c++/91230 - wrong error with __PRETTY_FUNCTION__ and generic lambda.
2207 * pt.c (value_dependent_expression_p): Consider __PRETTY_FUNCTION__
2208 inside a template function value-dependent.
2210 2019-08-02 Paolo Carlini <paolo.carlini@oracle.com>
2212 * tree.c (handle_nodiscard_attribute): Do not warn about nodiscard
2213 applied to a constructor.
2215 2019-08-02 Martin Liska <mliska@suse.cz>
2217 * decl.c (grok_op_properties):
2218 Mark DECL_SET_IS_OPERATOR_DELETE for user-provided delete operators.
2220 2019-08-01 Martin Sebor <msebor@redhat.com>
2223 * decl.c (reshape_init_array_1): Avoid truncating initializer
2224 lists containing string literals.
2226 2019-08-01 Marek Polacek <polacek@redhat.com>
2228 PR c++/90805 - detect narrowing in case values.
2229 * decl.c (case_conversion): Detect narrowing in case values.
2231 2019-07-31 Paolo Carlini <paolo.carlini@oracle.com>
2233 * decl2.c (delete_sanity): Improve diagnostic locations, use
2234 cp_expr_loc_or_loc in four places.
2236 2019-07-31 Jason Merrill <jason@redhat.com>
2238 PR c++/90538 - multiple expansions of capture packs
2239 * cp-tree.h (DECLTYPE_FOR_INIT_CAPTURE): Remove.
2240 * lambda.c (add_capture): Copy parameter packs from init.
2241 (lambda_capture_field_type): Always use auto for init-capture.
2242 * pt.c (uses_parameter_packs): Return tree.
2243 (tsubst) [DECLTYPE_TYPE]: Remove init-capture handling.
2244 (gen_elem_of_pack_expansion_instantiation): Don't push
2245 local_specialization_stack.
2246 (prepend_one_capture): New.
2247 (tsubst_lambda_expr): Use it. Don't touch local_specializations.
2248 (do_auto_deduction): Avoid redundant error.
2250 Fix copy_node of TEMPLATE_INFO.
2251 * cp-tree.h (struct tree_template_info): Use tree_base instead of
2252 tree_common. Add tmpl and args fields.
2253 (TI_TEMPLATE, TI_ARGS): Adjust.
2255 2019-07-30 Martin Liska <mliska@suse.cz>
2257 PR tree-optimization/91270
2258 * tree-ssa-dce.c (propagate_necessity): Mark 2nd argument
2259 of delete operator as needed.
2261 2019-07-25 Martin Liska <mliska@suse.cz>
2262 Dominik Infuhr <dominik.infuehr@theobroma-systems.com>
2265 * decl.c (cxx_init_decl_processing): Mark delete operators
2266 with DECL_SET_IS_OPERATOR_DELETE.
2268 2019-07-25 Martin Liska <mliska@suse.cz>
2270 * decl.c (duplicate_decls): Use new macros
2271 (e.g. DECL_SET_LAMBDA_FUNCTION and DECL_LAMBDA_FUNCTION_P).
2272 (cxx_init_decl_processing): Likewise.
2273 (grok_op_properties): Likewise.
2274 * parser.c (cp_parser_lambda_declarator_opt): Likewise.
2276 2019-07-24 Martin Sebor <msebor@redhat.com>
2279 * decl.c (finish_function): Use lang_mask.
2281 2019-07-20 Jason Merrill <jason@redhat.com>
2283 * cp-tree.h (ovl_iterator::using_p): A USING_DECL by itself was also
2284 introduced by a using-declaration.
2286 2019-07-20 Jason Merrill <jason@redhat.com>
2288 Reduce memory consumption for push/pop_access_scope.
2289 * name-lookup.c (leave_scope): Do add class levels other than
2290 previous_class_level to free_binding_level.
2291 (invalidate_class_lookup_cache): Move from class.c, add to
2293 * pt.c (saved_access_scope): Change from list to vec.
2295 2019-07-20 Jakub Jelinek <jakub@redhat.com>
2297 * cp-tree.h (OMP_FOR_GIMPLIFYING_P): Use OMP_LOOPING_CHECK
2298 instead of OMP_LOOP_CHECK.
2299 * parser.c (cp_parser_omp_clause_name): Handle bind clause.
2300 (cp_parser_omp_clause_bind): New function.
2301 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_BIND.
2302 (OMP_LOOP_CLAUSE_MASK): Define.
2303 (cp_parser_omp_loop): New function.
2304 (cp_parser_omp_parallel, cp_parser_omp_teams): Handle parsing of
2305 loop combined with parallel or teams.
2306 (cp_parser_omp_construct): Handle PRAGMA_OMP_LOOP.
2307 (cp_parser_pragma): Likewise.
2308 * pt.c (tsubst_expr): Handle OMP_LOOP.
2309 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_BIND.
2311 2019-07-19 Jason Merrill <jason@redhat.com>
2313 PR c++/90101 - dependent class non-type parameter.
2314 * pt.c (invalid_nontype_parm_type_p): Check for dependent class type.
2316 2019-07-18 Jason Merrill <jason@redhat.com>
2318 PR c++/90098 - partial specialization and class non-type parms.
2321 * call.c (build_converted_constant_expr_internal): Don't copy.
2322 * pt.c (process_partial_specialization): Allow VIEW_CONVERT_EXPR
2323 around class non-type parameter.
2324 (unify) [TEMPLATE_PARM_INDEX]: Ignore cv-quals.
2326 2019-07-16 Jason Merrill <jason@redhat.com>
2328 * parser.c (make_location): Add overload taking cp_lexer* as last
2331 * parser.c (cp_parser_simple_type_specifier): Separate tentative
2332 parses for optional type-spec and CTAD.
2334 * parser.c (cp_parser_nested_name_specifier_opt): If the token is
2335 already CPP_NESTED_NAME_SPECIFIER, leave it alone.
2337 2019-07-12 Jakub Jelinek <jakub@redhat.com>
2339 * parser.c (cp_parser_omp_clause_name): Handle order clause.
2340 (cp_parser_omp_clause_order): New function.
2341 (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_ORDER.
2342 (OMP_SIMD_CLAUSE_MASK, OMP_FOR_CLAUSE_MASK): Add
2343 PRAGMA_OMP_CLAUSE_ORDER.
2344 * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_ORDER.
2345 * pt.c (tsubst_omp_clauses): Likewise.
2347 2019-07-10 Paolo Carlini <paolo.carlini@oracle.com>
2349 * decl.c (get_type_quals,
2350 smallest_type_location (const cp_decl_specifier_seq*)): New.
2351 (check_tag_decl): Use smallest_type_location in error_at about
2352 multiple types in one declaration.
2353 (grokdeclarator): Use locations[ds_complex] in error_at about
2354 complex invalid; use locations[ds_storage_class] in error_at
2355 about static cdtor; use id_loc in error_at about flexible
2356 array member in union; use get_type_quals.
2358 2019-07-09 Martin Sebor <msebor@redhat.com>
2361 * cp-tree.h: Change class-key of PODs to struct and others to class.
2363 * semantics.c (finalize_nrv_r): Same.
2365 2019-07-09 Martin Sebor <msebor@redhat.com>
2368 * constexpr.c (cxx_eval_call_expression): Change class-key from class
2369 to struct and vice versa to match convention and avoid -Wclass-is-pod
2370 and -Wstruct-no-pod.
2371 * constraint.cc (get_concept_definition): Same.
2373 * cxx-pretty-print.h: Same.
2375 * logic.cc (term_list::replace): Same.
2376 * name-lookup.c (find_local_binding): Same.
2377 * pt.c (tsubst_binary_right_fold): Same.
2378 * search.c (field_accessor_p): Same.
2379 * semantics.c (expand_or_defer_fn): Same.
2381 2019-07-08 Jakub Jelinek <jakub@redhat.com>
2384 * decl2.c (cp_omp_mappable_type_1): Don't emit any note for
2385 error_mark_node type.
2387 2019-07-05 Jakub Jelinek <jakub@redhat.com>
2391 * call.c (build_new_method_call_1): Remove set but not used variable
2394 2019-07-05 Paolo Carlini <paolo.carlini@oracle.com>
2396 PR c++/67184 (again)
2398 * call.c (build_over_call): Devirtualize user-defined operators
2399 coming from a base too.
2400 (build_new_method_call_1): Do not devirtualize here.
2402 2019-07-04 Marek Polacek <polacek@redhat.com>
2405 PR c++/83374 - __is_standard_layout wrong for a class with repeated
2407 * class.c (check_bases): Set CLASSTYPE_NON_STD_LAYOUT for a class if
2408 CLASSTYPE_REPEATED_BASE_P is true.
2410 2019-07-04 Andrew Stubbs <ams@codesourcery.com>
2412 * cp-tree.h (cp_omp_emit_unmappable_type_notes): New prototype.
2413 * decl.c (cp_finish_decl): Call cp_omp_emit_unmappable_type_notes.
2414 * decl2.c (cp_omp_mappable_type): Move contents to ...
2415 (cp_omp_mappable_type_1): ... here and add note output.
2416 (cp_omp_emit_unmappable_type_notes): New function.
2417 * semantics.c (finish_omp_clauses): Call
2418 cp_omp_emit_unmappable_type_notes in four places.
2420 2019-07-03 Martin Liska <mliska@suse.cz>
2422 * call.c (build_new_op_1): Remove dead assignemts.
2423 * typeck.c (cp_build_binary_op): Likewise.
2425 2019-06-27 Jason Merrill <jason@redhat.com>
2427 PR c++/55442 - memory-hog with highly recursive constexpr.
2428 * constexpr.c (push_cx_call_context): Return depth.
2429 (cxx_eval_call_expression): Don't cache past constexpr_cache_depth.
2431 2019-06-27 Jan Hubicka <jh@suse.cz>
2433 * class.c (layout_class_type): Set TYPE_CXX_ODR_P for as-base
2436 2019-06-27 Martin Liska <mliska@suse.cz>
2438 * class.c (adjust_clone_args): Remove obviously
2440 (dump_class_hierarchy_r): Likewise.
2441 * decl.c (check_initializer): Likewise.
2442 * parser.c (cp_parser_lambda_expression): Likewise.
2443 * pt.c (unify_bound_ttp_args): Likewise.
2444 (convert_template_argument): Likewise.
2445 * rtti.c (build_headof): Likewise.
2446 * typeck.c (convert_for_initialization): Likewise.
2448 2019-06-25 Jason Merrill <jason@redhat.com>
2450 PR c++/70462 - unnecessary base ctor variant with final.
2451 * optimize.c (populate_clone_array): Skip base variant if
2453 (maybe_clone_body): We don't need an alias if we are only defining
2456 * class.c (resolves_to_fixed_type_p): Check CLASSTYPE_FINAL.
2458 2019-06-25 Jakub Jelinek <jakub@redhat.com>
2461 * constexpr.c (cxx_eval_array_reference): Don't look through VCE from
2462 vector type if lval.
2464 2019-06-25 Jozef Lawrynowicz <jozef.l@mittosystems.com>
2466 * lex.c (init_reswords): Create keyword for "__intN__" type.
2467 * cp-tree.h (cp_decl_specifier_seq): New bitfield "int_n_alt".
2468 * decl.c (grokdeclarator): Don't pedwarn about "__intN" ISO
2469 C incompatibility if alternate "__intN__" form is used.
2470 * parser.c (cp_parser_simple_type_specifier): Set
2471 decl_specs->int_n_alt if "__intN__" form is used.
2473 2019-06-24 Jan Hubicka <jh@suse.cz>
2475 * lex.c (cxx_make_type): Set TYPE_CXX_ODR_P.
2477 2019-06-24 Jason Merrill <jason@redhat.com>
2479 * class.c (layout_class_type): Don't use a separate
2480 CLASSTYPE_AS_BASE if it's the same size.
2482 2019-06-23 Marek Polacek <polacek@redhat.com>
2484 * call.c (convert_default_arg): Use DEFERRED_PARSE instead of
2486 * cp-objcp-common.c (cp_tree_size): Likewise. Use tree_deferred_parse
2487 instead of tree_default_arg.
2488 * cp-tree.def: Rename DEFAULT_ARG to DEFERRED_PARSE.
2489 * cp-tree.h: Rename DEFARG_TOKENS to DEFPARSE_TOKENS. Rename
2490 DEFARG_INSTANTIATIONS to DEFPARSE_INSTANTIATIONS. Rename
2491 tree_default_arg to tree_deferred_parse.
2492 (UNPARSED_NOEXCEPT_SPEC_P): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2493 (cp_tree_node_structure_enum): Rename TS_CP_DEFAULT_ARG to
2494 TS_CP_DEFERRED_PARSE.
2495 (lang_tree_node): Rename tree_default_arg to tree_deferred_parse.
2496 Rename default_arg to deferred_parse. Use TS_CP_DEFERRED_PARSE instead
2497 of TS_CP_DEFAULT_ARG.
2498 (defarg_location): Remove declaration.
2499 (defparse_location): Add declaration.
2500 * decl.c (grokfndecl): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2501 Call defparse_location instead of defarg_location.
2502 (check_default_argument): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2503 (cp_tree_node_structure): Likewise. Use TS_CP_DEFERRED_PARSE instead
2504 of TS_CP_DEFAULT_ARG.
2505 * decl2.c (grokfield): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2506 * error.c (dump_expr): Likewise.
2507 (location_of): Likewise.
2508 * init.c (get_nsdmi): Likewise.
2509 * parser.c (cp_parser_save_noexcept): Likewise. Use DEFPARSE_TOKENS
2510 instead of DEFARG_TOKENS.
2511 (cp_parser_late_noexcept_specifier): Likewise.
2512 (cp_parser_late_parse_one_default_arg): Use DEFPARSE_TOKENS instead
2514 (cp_parser_late_parsing_default_args): Use DEFERRED_PARSE instead of
2515 DEFAULT_ARG. Use DEFPARSE_INSTANTIATIONS instead of
2516 DEFARG_INSTANTIATIONS.
2517 (cp_parser_cache_defarg): Use DEFERRED_PARSE instead of DEFAULT_ARG.
2518 Use DEFPARSE_TOKENS instead of DEFARG_TOKENS. Use
2519 DEFPARSE_INSTANTIATIONS instead of DEFARG_INSTANTIATIONS.
2520 (defparse_location): Renamed from defarg_location.
2521 * pt.c (tsubst_default_argument): Use DEFERRED_PARSE instead of
2523 (tsubst_arg_types): Likewise.
2524 (dependent_type_p_r): Likewise.
2525 * tree.c (cp_tree_equal): Likewise.
2526 (cp_walk_subtrees): Likewise.
2527 * typeck.c (convert_arguments): Likewise.
2529 2019-06-22 Marek Polacek <polacek@redhat.com>
2531 PR c++/86476 - noexcept-specifier is a complete-class context.
2533 * cp-tree.def (DEFAULT_ARG): Update commentary.
2534 * cp-tree.h (UNPARSED_NOEXCEPT_SPEC_P): New macro.
2535 (tree_default_arg): Use tree_base instead of tree_common.
2536 (do_push_parm_decls, maybe_check_overriding_exception_spec): Declare.
2537 * decl.c (do_push_parm_decls): New function, broken out of...
2538 (store_parm_decls): ...here. Call it.
2539 * except.c (nothrow_spec_p): Accept DEFAULT_ARG in the assert.
2540 * parser.c (cp_parser_noexcept_specification_opt,
2541 cp_parser_late_noexcept_specifier, noexcept_override_late_checks):
2543 (unparsed_noexcepts): New macro.
2544 (push_unparsed_function_queues): Update initializer.
2545 (cp_parser_direct_declarator): Pass FRIEND_P to
2546 cp_parser_exception_specification_opt.
2547 (inject_parm_decls): New.
2548 (pop_injected_parms): New.
2549 (cp_parser_class_specifier_1): Implement delayed parsing of
2550 noexcept-specifiers.
2551 (cp_parser_save_noexcept): New.
2552 (cp_parser_late_noexcept_specifier): New.
2553 (noexcept_override_late_checks): New.
2554 (cp_parser_noexcept_specification_opt): Add FRIEND_P parameter. Call
2555 cp_parser_save_noexcept instead of the normal processing if needed.
2556 (cp_parser_exception_specification_opt): Add FRIEND_P parameter and
2557 pass it to cp_parser_noexcept_specification_opt.
2558 (cp_parser_save_member_function_body): Fix comment.
2559 (cp_parser_save_default_args): Maybe save the noexcept-specifier to
2561 (cp_parser_transaction): Update call to
2562 cp_parser_noexcept_specification_opt.
2563 (cp_parser_transaction_expression): Likewise.
2564 * parser.h (cp_unparsed_functions_entry): Add new field to carry
2565 a noexcept-specifier.
2566 * pt.c (dependent_type_p_r): Handle unparsed noexcept expression.
2567 * search.c (maybe_check_overriding_exception_spec): New function, broken
2569 (check_final_overrider): ...here. Call
2570 maybe_check_overriding_exception_spec.
2571 * tree.c (canonical_eh_spec): Handle UNPARSED_NOEXCEPT_SPEC_P.
2572 (cp_tree_equal): Handle DEFAULT_ARG.
2574 PR c++/90881 - bogus -Wunused-value in unevaluated context.
2575 * cvt.c (convert_to_void): Don't emit unused warnings in
2576 an unevaluated context.
2578 2019-06-22 Paolo Carlini <paolo.carlini@oracle.com>
2580 * decl.c (grokdeclarator): Use id_loc, typespec_loc, and
2581 locations[ds_storage_class] in a few additional places.
2583 2019-06-21 Paolo Carlini <paolo.carlini@oracle.com>
2587 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2591 * call.c (build_over_call): Devirtualize when the final overrider
2592 comes from the base.
2594 2019-06-21 Marek Polacek <polacek@redhat.com>
2596 PR c++/61490 - qualified-id in friend function definition.
2597 * decl.c (grokdeclarator): Diagnose qualified-id in friend function
2598 definition. Improve location for diagnostics of friend functions.
2600 PR c++/60223 - ICE with T{} in non-deduced context.
2601 * pt.c (unify): Allow COMPOUND_LITERAL_P in a non-deduced context.
2603 PR c++/64235 - missing syntax error with invalid alignas.
2604 * parser.c (cp_parser_std_attribute_spec): Commit to tentative parse
2605 if there's a missing close paren.
2607 PR c++/90490 - fix decltype issues in noexcept-specifier.
2608 * except.c (build_noexcept_spec): Call
2609 instantiate_non_dependent_expr_sfinae before
2610 build_converted_constant_expr instead of calling
2611 instantiate_non_dependent_expr after it. Add
2612 processing_template_decl_sentinel.
2614 2019-06-21 Jakub Jelinek <jakub@redhat.com>
2617 * semantics.c (finish_omp_clauses): Don't reject references to
2618 incomplete types if processing_template_decl.
2620 2019-06-19 Marek Polacek <polacek@redhat.com>
2622 PR c++/60364 - noreturn after first decl not diagnosed.
2623 * decl.c (duplicate_decls): Give an error when a function is
2624 declared [[noreturn]] after its first declaration.
2625 * parser.c (cp_parser_std_attribute): Don't treat C++11 noreturn
2626 attribute as equivalent to GNU's.
2627 * tree.c (std_attribute_table): Add noreturn.
2629 2019-06-19 Jakub Jelinek <jakub@redhat.com>
2631 * cp-gimplify.c (cp_genericize_r): Handle OMP_CLAUSE_{IN,EX}CLUSIVE
2632 like OMP_CLAUSE_SHARED.
2634 2019-06-18 Jason Merrill <jason@redhat.com>
2636 * constexpr.c (cxx_eval_store_expression): Delay target evaluation.
2638 2019-06-18 Jason Merrill <jason@redhat.com>
2640 * constexpr.c (eval_and_check_array_index): Split out from...
2641 (cxx_eval_array_reference): ...here.
2642 (cxx_eval_store_expression): Use it here, too.
2643 (diag_array_subscript): Take location. Strip location wrapper.
2645 2019-06-18 Jason Merrill <jason@redhat.com>
2647 * constexpr.c (cxx_eval_constant_expression): Handle conversion from
2648 and then to the same type.
2650 2019-06-18 Jason Merrill <jason@redhat.com>
2652 * constexpr.c (unshare_constructor): Add MEM_STAT_DECL.
2654 2019-06-17 Jakub Jelinek <jakub@redhat.com>
2656 * semantics.c (finish_omp_clauses): For OMP_CLAUSE_REDUCTION_INSCAN
2657 set need_copy_assignment.
2659 2019-06-17 Marek Polacek <polacek@redhat.com>
2661 PR c++/83820 - excessive attribute arguments not detected.
2662 * parser.c (cp_parser_std_attribute): Detect excessive arguments.
2664 2019-06-17 Nathan Sidwell <nathan@acm.org>
2667 * name-lookup.c (lookup_type_scope_1): Calll qualify_lookup before
2670 2019-06-14 Marek Polacek <polacek@redhat.com>
2672 PR c++/90884 - stray note with -Wctor-dtor-privacy.
2673 * class.c (maybe_warn_about_overly_private_class): Guard the call to
2676 2019-06-12 Jason Merrill <jason@redhat.com>
2678 PR c++/85552 - wrong instantiation of dtor for DMI.
2679 * typeck2.c (digest_nsdmi_init): Set tf_no_cleanup for direct-init.
2681 2019-06-13 Paolo Carlini <paolo.carlini@oracle.com>
2683 * decl.c (grokdeclarator): Use id_loc in five additional places
2684 in the last part of the function.
2686 2019-06-13 Paolo Carlini <paolo.carlini@oracle.com>
2688 * decl.c (grokdeclarator): Move further up the declaration of
2689 id_loc, use it immediately, update its value after the loop
2690 over declarator, use it again in the final part of function;
2691 improve locations of error messages about multiple data types
2692 and conflicting specifiers.
2694 2019-06-13 Richard Biener <rguenther@suse.de>
2697 * typeck2.c (split_nonconstant_init_1): Properly count
2698 num_split_elts, optimize single constructor elt removal.
2700 2019-06-12 Marek Polacek <polacek@redhat.com>
2702 PR c++/66999 - 'this' captured by reference.
2703 * parser.c (cp_parser_lambda_introducer): Reject `&this'. Use
2704 cp_lexer_nth_token_is instead of cp_lexer_peek_nth_token.
2706 PR c++/90825 - endless recursion when evaluating sizeof.
2707 PR c++/90832 - endless recursion when evaluating sizeof.
2708 * constexpr.c (cxx_eval_constant_expression): Don't recurse on the
2709 result of fold_sizeof_expr if is returns a SIZEOF_EXPR.
2710 * typeck.c (cxx_sizeof_expr): Only return a SIZEOF_EXPR if the operand
2711 is instantiation-dependent.
2713 PR c++/90736 - bogus error with alignof.
2714 * constexpr.c (adjust_temp_type): Use cv_unqualified type.
2716 2019-06-11 Matthew Beliveau <mbelivea@redhat.com>
2718 PR c++/90449 - add -Winaccessible-base option.
2719 * class.c (warn_about_ambiguous_bases): Changed name to:
2720 maybe_warn_about_inaccessible_bases.
2721 (maybe_warn_about_inaccessible_bases): Implemented new
2722 Winaccessible-base warning option for both direct and virtual
2724 (layout_class_type): Call to warn_about_ambiguous_bases changed to fit
2727 2019-06-11 Richard Biener <rguenther@suse.de>
2730 * typeck2.c (split_nonconstant_init_1): Avoid ordered remove
2731 from CONSTRUCTOR by marking to remove elements and doing all
2732 of them in a O(n) scan.
2734 2019-06-11 Jakub Jelinek <jakub@redhat.com>
2737 * init.c (constant_value_1): Handle VECTOR_CST DECL_INITIAL for
2738 !DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P decls like CONSTRUCTOR.
2740 2019-06-11 Martin Liska <mliska@suse.cz>
2743 * pt.c (init_template_processing): Disable hash table
2744 sanitization for decl_specializations and type_specializations.
2746 2019-06-10 Jason Merrill <jason@redhat.com>
2748 * constexpr.c (free_constructor): New.
2749 (cxx_eval_call_expression): Free parameter value CONSTRUCTORs.
2751 * constexpr.c (unshare_constructor): Only unshare if T is itself a
2753 (cxx_eval_call_expression): Don't call it on the result here.
2755 Reduce constexpr_call memory consumption.
2756 * constexpr.c (cxx_bind_parameters_in_call): Use TREE_VEC rather
2758 (constexpr_call_hasher::equal, cxx_bind_parameters_in_call)
2759 (cxx_eval_call_expression): Adjust.
2761 2019-06-10 Jakub Jelinek <jakub@redhat.com>
2763 * parser.c (cp_parser_omp_clause_reduction): Don't sorry_at on inscan
2765 (cp_parser_omp_scan_loop_body): New function.
2766 (cp_parser_omp_for_loop): Call cp_parser_omp_scan_loop_body if there
2767 are inscan reduction clauses.
2768 (cp_parser_pragma): Reject PRAGMA_OMP_SCAN.
2769 * semantics.c (finish_omp_clauses): Reject mixing inscan with
2770 non-inscan reductions on the same construct, or inscan reductions with
2771 ordered or schedule clauses, or inscan array reductions.
2772 * pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_{IN,EX}CLUSIVE.
2773 (tsubst_expr): Handle OMP_SCAN.
2775 2019-06-07 Jason Merrill <jason@redhat.com>
2777 * constexpr.c (cxx_eval_constant_expression): Call
2778 STRIP_ANY_LOCATION_WRAPPER early.
2779 [CONVERT_EXPR]: Don't build anything for conversion to void.
2780 [ADDR_EXPR]: ggc_free unused ADDR_EXPR.
2782 2019-06-05 Martin Sebor <msebor@redhat.com>
2785 * typeck.c (maybe_warn_about_returning_address_of_local): Only
2786 consider functions returning pointers as candidates for
2787 -Wreturn-local-addr.
2789 2019-06-05 Paolo Carlini <paolo.carlini@oracle.com>
2791 * decl.c (smallest_type_location): New.
2792 (check_special_function_return_type): Use it.
2793 (grokdeclarator): Lkewise.
2795 2019-06-05 Paolo Carlini <paolo.carlini@oracle.com>
2797 * decl.c (grokdeclarator): Use locations[ds_friend]
2800 2019-06-05 Martin Sebor <msebor@redhat.com>
2802 * call.c (build_conditional_expr_1): Adjust quoting and hyphenation.
2803 (convert_like_real): Same.
2804 (convert_arg_to_ellipsis): Same.
2805 * constexpr.c (diag_array_subscript): Same.
2806 * constraint.cc (diagnose_trait_expression): Same.
2807 * cvt.c (ocp_convert): Same.
2808 * decl.c (start_decl): Same.
2809 (check_for_uninitialized_const_var): Same.
2811 (check_special_function_return_type): Same.
2812 (finish_enum_value_list): Same.
2813 (start_preparsed_function): Same.
2814 * parser.c (cp_parser_decl_specifier_seq): Same.
2815 * typeck.c (cp_build_binary_op): Same.
2816 (build_static_cast_1): Same.
2818 2019-06-04 Nina Dinka Ranns <dinka.ranns@gmail.com>
2820 PR c++/63149 - Wrong auto deduction from braced-init-list.
2821 * pt.c (listify_autos): use non cv qualified auto_node in
2822 std::initializer_list<auto>.
2824 2019-06-04 Paolo Carlini <paolo.carlini@oracle.com>
2826 * decl.c (grokdeclarator): Use declarator->id_loc in two
2829 2019-06-04 Nathan Sidwell <nathan@acm.org>
2831 * name-lookup.c (lookup_type_scope_1): Reimplement, handle local
2832 and namespace scopes separately.
2834 2019-06-04 Harald van Dijk <harald@gigawatt.nl>
2836 PR c++/60531 - Wrong error about unresolved overloaded function
2837 * typeck.c (cp_build_binary_op): See if overload can be resolved.
2838 (cp_build_unary_op): Ditto.
2840 2019-06-04 Jason Merrill <jason@redhat.com>
2842 Reduce accumulated garbage in constexpr evaluation.
2843 * constexpr.c (cxx_eval_call_expression): ggc_free any bindings we
2845 (cxx_eval_increment_expression): ggc_free the MODIFY_EXPR after
2848 2019-06-04 Jakub Jelinek <jakub@redhat.com>
2850 * cp-tree.h (CP_OMP_CLAUSE_INFO): Allow for any clauses up to _condvar_
2851 instead of only up to linear.
2853 2019-06-03 Paolo Carlini <paolo.carlini@oracle.com>
2855 * parser.c (cp_parser_unqualified_id): Use build_min_nt_loc in
2858 2019-06-01 Ville Voutilainen <ville.voutilainen@gmail.com>
2861 * class.c (fixup_type_variants): Handle CLASSTYPE_FINAL.
2863 2019-05-31 Nathan Sidwell <nathan@acm.org>
2865 * cp-tree.h (IDENTIFIER_LAMBDA_P): New.
2867 (LAMBDA_TYPE_P, TYPE_UNNAMED_P): Likewise.
2868 (LAMBDANAME_PREFIX, LAMBDANAME_FORMAT): Delete.
2869 (make_lambda_name): Don't declare.
2870 * error.c (dump_aggr_type): Check for lambdas before other
2872 * lambda.c (begin_lambda_type): Use make_anon_name.
2873 * cp-lang.c (cxx_dwarf_name): Lambda names smell anonymous.
2874 * mangle.c (write_local_name): Likewise.
2875 * name-lookup.c (lambda_cnt, make_lambda_name): Delete.
2877 2019-05-30 Marek Polacek <polacek@redhat.com>
2879 * cp-tree.h (TYPE_HAS_NONTRIVIAL_DESTRUCTOR): Fix a typo.
2881 2019-05-31 Paolo Carlini <paolo.carlini@oracle.com>
2883 * decl.c (grokdeclarator): Use declarator->id_loc in five
2886 2019-05-29 Jakub Jelinek <jakub@redhat.com>
2889 * tree.c (lvalue_kind): Return clk_none for expressions with
2892 2019-05-29 Paolo Carlini <paolo.carlini@oracle.com>
2895 * parser.c (cp_parser_sizeof_operand): When the type-id production
2896 did not work out commit to the tentative parse.
2898 2019-05-29 Jakub Jelinek <jakub@redhat.com>
2900 P1091R3 - Extending structured bindings to be more like var decls
2901 P1381R1 - Reference capture of structured bindings
2902 * decl.c (cp_maybe_mangle_decomp): Handle TREE_STATIC decls even at
2904 (cp_finish_decomp): Copy over various decl properties from decl to
2905 v[i] in the tuple case.
2906 (grokdeclarator): Allow static, thread_local and __thread for C++2a
2907 and use pedwarn instead of error for older standard revisions.
2908 Make other structured binding diagnostic messages more i18n friendly.
2910 2019-05-28 Nathan Sidwell <nathan@acm.org>
2912 * decl.c (duplicate_decls): Assert a template newdecl has no
2915 2019-05-28 Marek Polacek <polacek@redhat.com>
2917 PR c++/90548 - ICE with generic lambda and empty pack.
2918 * pt.c (tsubst_copy_and_build): Handle pack expansion properly.
2920 2019-05-28 Nathan Sidwell <nathan@acm.org>
2922 * cp-tree.h (make_anon_name): Drop declaration.
2923 (TYPE_UNNAMED_P): Use IDENTIFIER_ANON_P.
2924 * cp-lang.c (cxx_dwarf_name): Likewise.
2925 * class.c (find_flexarrays): Likewise.
2926 * decl.c (name_unnamed_type, xref_tag_1): Likewise.
2927 * error.c (dump_aggr_type): Likewise.
2928 * pt.c (push_template_decl_real): Likewise.
2929 * name-lookup.c (consider_binding_level): Likewise.
2930 (anon_cnt, make_anon_name): Delete.
2932 2019-05-25 Marek Polacek <polacek@redhat.com>
2934 PR c++/90572 - wrong disambiguation in friend declaration.
2935 * parser.c (cp_parser_constructor_declarator_p): Don't allow missing
2936 typename for friend declarations.
2938 2019-05-23 Jonathan Wakely <jwakely@redhat.com>
2940 * cp-tree.h (CP_AGGREGATE_TYPE_P): Fix whitespace.
2942 * init.c (std_placement_new_fn_p): Remove outdated TODO comment that
2943 was resolved by r254694.
2945 2019-05-22 Jason Merrill <jason@redhat.com>
2947 PR c++/20408 - unnecessary code for empty struct.
2948 * call.c (build_call_a): Use simple_empty_class_p.
2950 PR c++/86485 - -Wmaybe-unused with empty class ?:
2951 * cp-gimplify.c (simple_empty_class_p): Also true for MODIFY_EXPR.
2953 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2955 * parser.c (cp_parser_template_declaration_after_parameters): Use
2956 DECL_SOURCE_LOCATION in literal operator template errors.
2958 2019-05-21 Paolo Carlini <paolo.carlini@oracle.com>
2962 * call.c (build_over_call): Devirtualize when the final overrider
2963 comes from the base.
2965 2019-05-21 Nathan Sidwell <nathan@acm.org>
2967 * name-lookup.c (do_nonmember_using_decl): Drop INSERT_P
2968 parameter. Document.
2969 (finish_nonmember_using_decl): Adjust do_nonmember_using_decl
2970 calls. Remove stray FIXME comment.
2972 * name-lookup.h (struct cp_binding_level): Drop usings field.
2973 (finish_namespace_using_decl, finish_local_using_decl): Replace with ...
2974 (finish_nonmember_using_decl): ... this.
2975 * name-lookup.c (push_using_decl_1, push_using_decl):
2976 (do_nonmember_using_decl): ... here. Add INSERT_P arg. Reimplement.
2977 (validate_nonmember_using_decl, finish_namespace_using_decl)
2978 (finish_local_using_decl): Replace with ...
2979 (finish_nonmember_using_decl): ... this. Drop DECL parm.
2980 * parser.c (cp_parser_using_declaration): Don't do lookup here.
2981 * pt.c (tsubst_expr): Do not do using decl lookup here.
2983 2019-05-21 Eric Botcazou <ebotcazou@adacore.com>
2985 * decl2.c (cpp_check) <IS_ASSIGNMENT_OPERATOR>: New case.
2987 2019-05-20 Marek Polacek <polacek@redhat.com>
2989 CWG 2094 - volatile scalars are trivially copyable.
2991 * tree.c (trivially_copyable_p): Don't check CP_TYPE_VOLATILE_P for
2994 2019-05-20 Marek Polacek <polacek@redhat.com>
2996 * pt.c (convert_template_argument): Add a diagnostic for the
2997 [temp.arg]/2 ambiguity case.
2999 * name-lookup.c (finish_using_directive): Don't issue inform() if the
3000 warning didn't trigger. Add quoting. Tweak the inform message.
3002 2019-05-20 Paolo Carlini <paolo.carlini@oracle.com>
3004 * cp-tree.h: Remove remnants of CONV_NONCONVERTING.
3006 2019-05-20 Nathan Sidwell <nathan@acm.org>
3008 * name-lookup.c (finish_namespace_using_directive)
3009 (finish_local_using_directive): Merge to ...
3010 (finish_using_directive): ... here. Handle both contexts.
3011 * name-lookup.h (finish_namespace_using_directive)
3012 (finish_local_using_directive): Replace with ...
3013 (finish_using_directive): ... this.
3014 * parser.c (cp_parser_using_directive): Adjust.
3015 * pt.c (tsubst_expr): Likewise.
3017 * cp-tree.h (struct lang_decl_ns): Remove usings field.
3018 (DECL_NAMESPACE_USING): Delete.
3019 * name-lookup.c (name_lookup::search_usings): Use namespace's
3021 (name_lookup::queue_namespae): Likewise.
3022 (finish_namespace_using_directive, push_namespace): Likewise.
3023 (has_using_namespace_std_directive): Just search the entire
3026 2019-05-20 Jonathan Wakely <jwakely@redhat.com>
3028 PR c++/90532 Ensure __is_constructible(T[]) is false
3029 * method.c (is_xible_helper): Return error_mark_node for construction
3030 of an array of unknown bound.
3032 2019-05-17 Thomas Schwinge <thomas@codesourcery.com>
3035 * parser.c (cp_finalize_oacc_routine): Rework checking if already
3036 marked with an OpenACC 'routine' directive.
3039 * parser.c (cp_parser_oacc_routine)
3040 (cp_parser_late_parsing_oacc_routine): Normalize order of clauses.
3041 (cp_finalize_oacc_routine): Call oacc_verify_routine_clauses.
3044 * parser.c (cp_finalize_oacc_routine): Refer to OpenACC 'routine'
3045 clauses from "omp declare target" attribute.
3047 2019-05-16 Martin Sebor <msebor@redhat.com>
3049 * call.c (print_z_candidate): Wrap diagnostic text in a gettext
3051 (print_z_candidates): Same.
3052 (build_conditional_expr_1): Quote keywords, operators, and types
3054 (build_op_delete_call): Same.
3055 (maybe_print_user_conv_context): Wrap diagnostic text in a gettext
3057 (convert_like_real): Same.
3058 (convert_arg_to_ellipsis): Quote keywords, operators, and types
3060 (build_over_call): Same.
3061 (joust): Break up an overlong line. Wrap diagnostic text in a gettext
3063 * constexpr.c (cxx_eval_check_shift_p): Spell out >= in English.
3064 (cxx_eval_constant_expression): Quote keywords, operators, and types
3066 (potential_constant_expression_1): Same.
3067 * cp-gimplify.c (cp_genericize_r): Same.
3068 * cvt.c (maybe_warn_nodiscard): Quote keywords, operators, and types
3070 (type_promotes_to): Same.
3071 * decl.c (check_previous_goto_1): Same.
3074 (cp_finish_decl): Avoid parenthesizing a sentence for consistency.
3075 (grok_op_properties): Quote keywords, operators, and types
3077 * decl2.c (grokfield): Same.
3078 (coerce_delete_type): Same.
3079 * except.c (is_admissible_throw_operand_or_catch_parameter): Same.
3080 * friend.c (do_friend): Quote C++ tokens.
3081 * init.c (build_new_1): Quote keywords, operators, and types
3083 (build_vec_delete_1): Same.
3084 (build_delete): Same.
3085 * lex.c (parse_strconst_pragma): Same.
3086 (handle_pragma_implementation): Same.
3087 (unqualified_fn_lookup_error): Same.
3088 * mangle.c (write_type): Same.
3089 * method.c (defaulted_late_check): Avoid two consecutive punctuators.
3090 * name-lookup.c (cp_binding_level_debug): Remove a trailing newline.
3091 (pop_everything): Same.
3092 * parser.c (cp_lexer_start_debugging): Quote a macro name.
3094 (cp_lexer_stop_debugging): Same.
3095 (cp_parser_userdef_numeric_literal): Quote a C++ header name
3097 (cp_parser_nested_name_specifier_opt): Quote keywords, operators,
3098 and types in diagnostics.
3099 (cp_parser_question_colon_clause): Same.
3100 (cp_parser_asm_definition): Same.
3101 (cp_parser_init_declarator): Same.
3102 (cp_parser_template_declaration_after_parameters): Avoid capitalizing
3103 a sentence in a diagnostic.
3104 (cp_parser_omp_declare_reduction): Quote keywords, operators, and types
3106 (cp_parser_transaction): Same.
3107 * pt.c (maybe_process_partial_specialization): Replace second call
3108 to permerror with inform for consistency with other uses.
3109 (expand_integer_pack): Quote keywords, operators, and types
3111 * rtti.c (get_typeid): Quote keywords, operators, and types
3113 (build_dynamic_cast_1): Same.
3114 * semantics.c (finish_asm_stmt): Same.
3115 (finish_label_decl): Same.
3116 (finish_bases): Same.
3117 (finish_offsetof): Same.
3118 (cp_check_omp_declare_reduction): Same.
3119 (finish_decltype_type): Same.
3120 * tree.c (handle_init_priority_attribute): Same. Add detail
3122 (maybe_warn_zero_as_null_pointer_constant): Same.
3123 * typeck.c (cp_build_binary_op): Quote keywords, operators, and types
3125 (cp_build_unary_op): Same.
3126 (check_for_casting_away_constness): Same.
3127 (build_static_cast): Same.
3128 (build_const_cast_1): Same.
3129 (maybe_warn_about_returning_address_of_local): Same.
3130 (check_return_expr): Same.
3131 * typeck2.c (abstract_virtuals_error_sfinae): Same.
3132 (digest_init_r): Replace a tab with spaces in a diagnostic.
3133 (build_functional_cast): Quote keywords, operators, and types
3136 2019-05-15 Jakub Jelinek <jakub@redhat.com>
3139 * cp-gimplify.c (genericize_cp_loop): Emit a DEBUG_BEGIN_STMT
3140 before the condition (or if missing or constant non-zero at the end
3141 of the loop. Emit a DEBUG_BEGIN_STMT before the increment expression
3142 if any. Don't call protected_set_expr_location on incr if it already
3145 2019-05-15 Marek Polacek <polacek@redhat.com>
3147 CWG 2096 - constraints on literal unions.
3148 * class.c (check_field_decls): Initialize booleans directly. A union
3149 is literal if at least one of its non-static data members is of
3150 non-volatile literal type.
3152 2019-05-15 Paolo Carlini <paolo.carlini@oracle.com>
3154 * cp-tree.h (REFERENCE_VLA_OK): Remove.
3155 * lambda.c (build_capture_proxy): Remove use of the above.
3157 2019-05-15 Paolo Carlini <paolo.carlini@oracle.com>
3159 * call.c (perform_overload_resolution, build_new_method_call_1):
3160 Use OVL_P; remove redundant TEMPLATE_DECL checks.
3161 * decl.c (grokfndecl): Likewise.
3162 * mangle.c (write_expression): Likewise.
3163 * parser.c (cp_parser_template_id): Likewise.
3164 * pt.c (resolve_overloaded_unification, type_dependent_expression_p):
3166 * search.c (build_baselink): Likewise.
3167 * tree.c (is_overloaded_fn, dependent_name, maybe_get_fns): Likewise.
3169 2019-05-14 Paolo Carlini <paolo.carlini@oracle.com>
3171 PR preprocessor/90382
3172 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3175 2019-05-13 Jason Merrill <jason@redhat.com>
3177 Use releasing_vec more broadly.
3178 * cp-tree.h (struct releasing_vec): Replace get_ref method with
3180 (vec_safe_push, vec_safe_reserve, vec_safe_length, vec_safe_splice):
3181 Forwarding functions for releasing_vec.
3182 (release_tree_vector): Declare but don't define.
3183 * call.c (build_op_delete_call, build_temp, call_copy_ctor)
3184 (perform_direct_initialization_if_possible): Use releasing_vec.
3185 * constexpr.c (cxx_eval_vec_init_1, cxx_eval_store_expression):
3187 * cp-gimplify.c (cp_fold): Likewise.
3188 * cvt.c (force_rvalue, ocp_convert): Likewise.
3189 * decl.c (get_tuple_decomp_init): Likewise.
3190 * except.c (build_throw): Likewise.
3191 * init.c (perform_member_init, expand_default_init): Likewise.
3192 * method.c (do_build_copy_assign, locate_fn_flags): Likewise.
3193 * parser.c (cp_parser_userdef_char_literal)
3194 (cp_parser_userdef_numeric_literal)
3195 (cp_parser_userdef_string_literal)
3196 (cp_parser_perform_range_for_lookup)
3197 (cp_parser_range_for_member_function, cp_parser_omp_for_loop)
3198 (cp_parser_omp_for_loop_init): Likewise.
3199 * pt.c (tsubst_copy_and_build, do_class_deduction): Likewise.
3200 * semantics.c (calculate_direct_bases, calculate_bases)
3201 (finish_omp_barrier, finish_omp_flush, finish_omp_taskwait)
3202 (finish_omp_taskyield, finish_omp_cancel)
3203 (finish_omp_cancellation_point): Likewise.
3204 * tree.c (build_vec_init_elt, strip_typedefs, strip_typedefs_expr)
3205 (build_min_non_dep_op_overload): Likewise.
3206 * typeck.c (build_function_call_vec, cp_build_function_call_nary)
3207 (cp_build_modify_expr): Likewise.
3208 * typeck2.c (build_functional_cast): Likewise.
3210 2019-05-11 Paolo Carlini <paolo.carlini@oracle.com>
3212 * typeck.c (cp_build_function_call_vec): When mark_used fails
3213 unconditionally return error_mark_node.
3215 2019-05-10 Paolo Carlini <paolo.carlini@oracle.com>
3217 * decl.c (grokvardecl): Use an accurate location in error message
3218 about main as a global variable.
3220 2019-05-10 Paolo Carlini <paolo.carlini@oracle.com>
3222 * call.c (build_call_a): Use FUNC_OR_METHOD_TYPE_P.
3223 * cp-gimplify.c (cp_fold): Likewise.
3224 * cp-objcp-common.c (cp_type_dwarf_attribute): Likewise.
3225 * cp-tree.h (TYPE_OBJ_P, TYPE_PTROBV_P): Likewise.
3226 * cvt.c (perform_qualification_conversions): Likewise.
3227 * decl.c (grokdeclarator): Likewise.
3228 * decl2.c (build_memfn_type): Likewise.
3229 * mangle.c (canonicalize_for_substitution, write_type): Likewise.
3230 * parser.c (cp_parser_omp_declare_reduction): Likewise.
3231 * pt.c (check_explicit_specialization, uses_deducible_template_parms,
3232 check_cv_quals_for_unify, dependent_type_p_r): Likewise.
3233 * rtti.c (ptr_initializer): Likewise.
3234 * semantics.c (finish_asm_stmt, finish_offsetof,
3235 cp_check_omp_declare_reduction): Likewise.
3236 * tree.c (cp_build_qualified_type_real,
3237 cp_build_type_attribute_variant, cxx_type_hash_eq,
3238 cxx_copy_lang_qualifiers, cp_free_lang_data): Likewise.
3239 * typeck.c (structural_comptypes, convert_arguments,
3240 cp_build_addr_expr_1, unary_complex_lvalue, cp_build_c_cast,
3241 cp_build_modify_expr, comp_ptr_ttypes_real, type_memfn_rqual):
3244 2019-05-10 Marek Polacek <polacek@redhat.com>
3246 PR c++/78010 - bogus -Wsuggest-override warning on final function.
3247 * class.c (check_for_override): Don't warn for final functions.
3249 2019-05-10 Jakub Jelinek <jakub@redhat.com>
3252 * config-lang.in (gtfiles): Remove c-family/c-lex.c, add
3253 c-family/c-cppbuiltin.c.
3255 2019-05-09 Paolo Carlini <paolo.carlini@oracle.com>
3259 2018-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3261 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3264 2019-05-08 Nathan Sidwell <nathan@acm.org>
3266 Kill DECL_SAVED_FUNCTION_DATA .
3267 * cp-tree.h (language_function): Remove x_auto_return_pattern.
3268 (current_function_auto_return_pattern): Delete.
3269 (lang_decl_fn): Replace saved_language_function with
3270 saved_auto_return type.
3271 (DECL_SAVED_FUNCTION_DATA): Delete.
3272 (DECL_SAVED_AUTO_RETURN_TYPE): New.
3273 (FNDECL_USED_AUTO): Correct documentation.
3274 * decl.c (duplicate_decls): Adjust AUTO return handling.
3275 (start_preparsed_function): Replace
3276 current_function_auto_return_pattern with
3277 DECL_SAVED_AUTO_RETURN_TYPE. Remove DECL_SAVED_FUNCTION_DATA
3279 (finish_function): Likewise.
3280 (save_function_data): Delete.
3281 (fndecl_declared_return_type): Reimplement.
3282 * mangle.c (write_unqualified_name): Use DECL_SAVED_AUTO_RETURN_TYPE.
3283 * method.c (make_thunk, make_alias_for): Likewise.
3284 * parser.c (cp_parser_jump_statement): Likewise.
3285 * pt.c (do_auto_deduction): Likewise.
3286 * typeck.c (check_return_expr): Likewise.
3288 2019-05-06 Jason Merrill <jason@redhat.com>
3290 PR c++/90171 - reorganize usual_deallocation_fn_p
3291 * call.c (struct dealloc_info): New.
3292 (usual_deallocation_fn_p): Take a dealloc_info*.
3293 (aligned_deallocation_fn_p, sized_deallocation_fn_p): Remove.
3294 (build_op_delete_call): Adjust.
3296 2019-05-07 Jason Merrill <jason@redhat.com>
3298 PR c++/86485 - -Wmaybe-unused with empty class ?:
3299 * typeck.c (build_static_cast_1): Use cp_build_addr_expr.
3301 * pt.c (type_dependent_expression_p): A non-type template parm with
3302 a placeholder type is type-dependent.
3304 2019-05-06 Marek Polacek <polacek@redhat.com>
3306 PR c++/90265 - ICE with generic lambda.
3307 * pt.c (tsubst_copy_and_build): Use a dedicated variable for the last
3308 element in the vector.
3310 2019-05-03 Martin Liska <mliska@suse.cz>
3312 * call.c (build_aggr_conv): Use is_empty instead of
3313 elements () == 0 (and similar usages).
3314 * parser.c (cp_parser_lambda_introducer): Likewise.
3316 2019-05-02 Nathan Sidwell <nathan@acm.org>
3318 * semantics.c (finish_id_expression_1): Remove unreachable code.
3320 2019-05-01 Nathan Sidwell <nathan@acm.org>
3322 * name-lookup.h (get_class_binding_direct): Change final arg to
3324 (get_class_binding): Likewise.
3325 * name-lookup.c (get_class_binding_direct): Replace TYPE_OR_FNS
3326 arg with WANT_TYPE bool. Simplify.
3327 (get_class_binding): Adjust final arg.
3328 * decl.c (reshape_init_class): Adjust get_class_binding calls.
3330 2019-04-30 Nathan Sidwell <nathan@acm.org>
3332 * cp-objcp-common.c (cp_common_init_ts): Use MARK_TS_EXP for _EXPR
3333 nodes. Call c_common_init_ts.
3335 2019-04-29 Nathan Sidwell <nathan@acm.org>
3337 * decl.c (duplicate_decls): Add whitespace, move comments into
3339 * method.c (explain_implicit_non_constexpr): Refactor.
3340 * pt.c (check_explicit_specialization): Fix indentation.
3341 * semantics.c (process_outer_var_ref): Reformat.
3342 (finish_id_expression_1): Use STRIP_TEMPLATE.
3344 2019-04-26 Jonathan Wakely <jwakely@redhat.com>
3346 PR c++/90243 - orphaned note in uninstantiated constexpr function
3347 * decl.c (check_for_uninitialized_const_var): Suppress notes if no
3350 2019-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3353 * decl.c (grokdeclarator): Set type to error_mark_node
3354 upon error about template placeholder type non followed
3355 by a simple declarator-id.
3357 2019-04-26 Paolo Carlini <paolo.carlini@oracle.com>
3359 * decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
3362 2019-04-24 Jason Merrill <jason@redhat.com>
3364 PR c++/90227 - error with template parameter packs.
3365 * pt.c (coerce_template_parms): Do add empty pack when
3368 2019-04-24 Richard Biener <rguenther@suse.de>
3370 * call.c (null_ptr_cst_p): Order checks according to expensiveness.
3371 (conversion_null_warnings): Likewise.
3372 * typeck.c (same_type_ignoring_top_level_qualifiers_p): Return
3373 early if type1 == type2.
3375 2019-04-22 Jason Merrill <jason@redhat.com>
3377 PR c++/87366 - wrong error with alias template.
3378 * typeck.c (structural_comptypes): When comparing_specializations,
3379 aliases are unequal.
3380 (comptypes): When comparing_specializations, do structural
3383 2019-04-19 Jason Merrill <jason@redhat.com>
3385 PR c++/90190 - CTAD with list-constructor.
3386 * pt.c (do_class_deduction): Don't try the single element deduction
3387 if the single element is also a braced list.
3389 PR c++/90171 - ICE with destroying delete with size_t parm.
3390 * call.c (sized_deallocation_fn_p): New. Use it instead of
3391 second_parm_is_size_t in most cases.
3392 (second_parm_is_size_t): Don't check for aligned.
3394 2019-04-19 Paolo Carlini <paolo.carlini@oracle.com>
3397 * pt.c (fn_type_unification): When handling null explicit
3398 arguments do not special case non-parameter packs.
3400 2019-04-19 Jakub Jelinek <jakub@redhat.com>
3403 * pt.c (process_template_parm): Set decl to pushdecl result. If
3404 !is_non_type, also set parm to that.
3407 * decl.c (struct cp_switch): Remove outside_range_p member.
3408 (push_switch): Don't clear it.
3409 (pop_switch): Adjust c_do_switch_warnings caller.
3410 (finish_case_label): Adjust c_add_case_label caller.
3413 * decl.c (duplicate_decls): If remove is main variant and
3414 DECL_ORIGINAL_TYPE is some other type, remove a DECL_ORIGINAL_TYPE
3415 variant that has newdecl as TYPE_NAME if any.
3417 2019-04-18 Jason Merrill <jason@redhat.com>
3419 PR c++/87554 - ICE with extern template and reference member.
3420 * decl.c (cp_finish_decl): Don't set DECL_INITIAL of external vars.
3422 2019-04-17 Jason Merrill <jason@redhat.com>
3424 PR c++/90047 - ICE with enable_if alias template.
3425 * pt.c (tsubst_decl) [TYPE_DECL]: Don't put an erroneous decl in the
3426 hash table when we're in SFINAE context.
3428 2019-04-17 Marek Polacek <polacek@redhat.com>
3430 PR c++/90124 - bogus error with incomplete type in decltype.
3431 * typeck.c (build_class_member_access_expr): Check
3432 cp_unevaluated_operand.
3434 2019-04-12 Jakub Jelinek <jakub@redhat.com>
3437 * decl.c (duplicate_decls): When newdecl's type is its main variant,
3438 don't try to remove it from the variant list, but instead assert
3441 2019-04-12 Martin Sebor <msebor@redhat.com>
3445 * parser.c (cp_parser_has_attribute_expression): Handle assignment
3448 2019-04-12 Jason Merrill <jason@redhat.com>
3450 * call.c (null_member_pointer_value_p): Handle an empty CONSTRUCTOR
3453 2019-04-12 Marek Polacek <polacek@redhat.com>
3455 * except.c (build_noexcept_spec): Use build_converted_constant_bool_expr
3456 instead of perform_implicit_conversion_flags.
3458 PR c++/87603 - constexpr functions are no longer noexcept.
3459 * constexpr.c (is_sub_constant_expr): Remove unused function.
3460 * cp-tree.h (is_sub_constant_expr): Remove declaration.
3461 * except.c (check_noexcept_r): Don't consider a call to a constexpr
3464 2019-04-11 Jakub Jelinek <jakub@redhat.com>
3466 PR translation/90035
3467 * parser.h (struct cp_parser): Add
3468 type_definition_forbidden_message_arg member.
3469 * parser.c (cp_debug_parser): Print it.
3470 (cp_parser_check_type_definition): Pass
3471 parser->type_definition_forbidden_message_arg as second argument to
3473 (cp_parser_has_attribute_expression, cp_parser_sizeof_operand): Set
3474 parser->type_definition_forbidden_message_arg and use G_() with
3475 %qs for parser->type_definition_forbidden_message instead of
3476 building untranslatable message using concat.
3478 2019-04-09 Jakub Jelinek <jakub@redhat.com>
3480 PR translation/90011
3481 * typeck2.c (check_narrowing): Remove trailing space from diagnostics.
3483 2019-04-08 Marek Polacek <polacek@redhat.com>
3485 * typeck2.c (digest_init_r): Don't condition the object slicing warning
3488 2019-04-08 Paolo Carlini <paolo.carlini@oracle.com>
3491 * semantics.c (trait_expr_value): Don't use TYPE_NOTHROW_P
3492 when maybe_instantiate_noexcept fails.
3493 (classtype_has_nothrow_assign_or_copy_p): Likewise.
3494 * method.c (implicitly_declare_fn): Avoid passing error_mark_node
3495 to build_exception_variant.
3497 2019-04-05 Marek Polacek <polacek@redhat.com>
3499 PR c++/87145 - bogus error converting class type in template arg list.
3500 * pt.c (convert_nontype_argument): Don't call
3501 build_converted_constant_expr if it could involve calling a conversion
3502 function with a instantiation-dependent constructor as its argument.
3504 2019-04-05 Martin Sebor <msebor@redhat.com>
3507 * decl.c (reshape_init_array_1): Avoid treating empty strings
3508 as zeros in array initializers.
3509 Use trivial_type_p () instead of TYPE_HAS_TRIVIAL_DFLT().
3511 2019-04-04 Jason Merrill <jason@redhat.com>
3513 PR c++/89948 - ICE with break in statement-expr.
3514 * constexpr.c (cxx_eval_statement_list): Jumping out of a
3515 statement-expr is non-constant.
3517 2019-04-04 Jason Merrill <jason@redhat.com>
3519 PR c++/89966 - error with non-type auto tparm.
3520 * pt.c (do_auto_deduction): Clear tf_partial.
3522 2019-04-04 Jason Merrill <jason@redhat.com>
3524 PR c++/86986 - ICE with TTP with parameter pack.
3525 * pt.c (coerce_template_parameter_pack): Only look at the type of a
3526 non-type parameter pack.
3527 (fixed_parameter_pack_p_1): Don't recurse into the type of a
3528 non-type parameter pack.
3529 (coerce_template_template_parms): Call add_outermost_template_args.
3531 2019-04-04 Martin Sebor <msebor@redhat.com>
3537 * decl.c (reshape_init_array_1): Strip trailing zero-initializers
3538 from arrays of trivial type and known size.
3539 * mangle.c (write_expression): Convert braced initializer lists
3541 (write_expression): Trim trailing zero-initializers from arrays
3543 (write_template_arg_literal): Mangle strings the same as braced
3546 2019-04-03 Jason Merrill <jason@redhat.com>
3548 PR c++/81866 - ICE with member template and default targ.
3549 * pt.c (tsubst_template_decl): Handle getting a type from
3550 retrieve_specialization.
3552 PR c++/86586 - -fcompare-debug=-Wsign-compare.
3553 * typeck.c (cp_build_binary_op): Don't fold for -Wsign-compare.
3555 PR c++/89331 - ICE with offsetof in incomplete class.
3556 * semantics.c (finish_offsetof): Handle error_mark_node.
3557 * typeck.c (build_class_member_access_expr): Call
3558 complete_type_or_maybe_complain before converting to base.
3560 PR c++/89917 - ICE with lambda in variadic mem-init.
3561 * pt.c (make_pack_expansion): Change type_pack_expansion_p to false.
3563 2019-04-01 Jason Merrill <jason@redhat.com>
3565 PR c++/86946 - ICE with function call in template argument.
3567 * pt.c (iterative_hash_template_arg) [CALL_EXPR]: Use
3570 2019-04-01 Paolo Carlini <paolo.carlini@oracle.com>
3573 * pt.c (tsubst_copy): Deal with lookup_name not returing a variable.
3575 2019-03-31 Marek Polacek <polacek@redhat.com>
3577 PR c++/89852 - ICE with C++11 functional cast with { }.
3578 * constexpr.c (fold_non_dependent_expr_template): New static function
3580 (fold_non_dependent_expr): ...here.
3581 (fold_non_dependent_init): New function.
3582 * cp-tree.h (fold_non_dependent_init): Declare.
3583 * typeck2.c (massage_init_elt): Call fold_non_dependent_init instead
3584 of fold_non_dependent_expr. Don't call maybe_constant_init.
3586 2019-03-30 Jason Merrill <jason@redhat.com>
3588 PR c++/89744 - ICE with specialization of member class template.
3589 * pt.c (lookup_template_class_1): If the partial instantiation is
3590 explicitly specialized, adjust.
3591 (maybe_process_partial_specialization): Also adjust
3594 2019-03-29 Jakub Jelinek <jakub@redhat.com>
3597 * typeck.c: Include gimplify.h.
3598 (cp_build_modify_expr) <case COND_EXPR>: Unshare rhs before using it
3599 for second time. Formatting fixes.
3601 2019-03-29 Marek Polacek <polacek@redhat.com>
3603 PR c++/89876 - ICE with deprecated conversion.
3604 * call.c (convert_like_real): Only give warnings with tf_warning.
3606 2019-03-28 Marek Polacek <polacek@redhat.com>
3608 PR c++/89612 - ICE with member friend template with noexcept.
3609 * pt.c (maybe_instantiate_noexcept): For function templates, use their
3610 template result (function decl). Don't set up local specializations.
3611 Temporarily turn on processing_template_decl. Update the template type
3614 PR c++/89836 - bool constant expression and explicit conversions.
3615 * call.c (build_converted_constant_expr_internal): New function,
3617 (build_converted_constant_expr): ...this. New.
3618 (build_converted_constant_bool_expr): New.
3619 * cp-tree.h (build_converted_constant_bool_expr): Declare.
3620 * decl.c (build_explicit_specifier): Call
3621 build_converted_constant_bool_expr.
3623 2019-03-28 Jakub Jelinek <jakub@redhat.com>
3626 * constexpr.c (struct check_for_return_continue_data): New type.
3627 (check_for_return_continue): New function.
3628 (potential_constant_expression_1) <case SWITCH_STMT>: Walk
3629 SWITCH_STMT_BODY to find RETURN_EXPRs or CONTINUE_STMTs not nested
3630 in loop bodies and set *jump_target to that if found.
3632 2019-03-27 Jason Merrill <jason@redhat.com>
3634 PR c++/89831 - error with qualified-id in const member function.
3635 * semantics.c (finish_non_static_data_member): Use object cv-quals
3636 in scoped case, too.
3638 PR c++/89421 - ICE with lambda in template parameter list.
3639 * parser.c (cp_parser_lambda_expression): Also reject a lambda in a
3640 template parameter list before C++20.
3641 * pt.c (type_dependent_expression_p): True for LAMBDA_EXPR.
3642 * semantics.c (begin_class_definition): Restore error about defining
3643 non-lambda class in template parm list.
3645 2019-03-26 Jason Merrill <jason@redhat.com>
3647 PR c++/86932 - missed SFINAE with empty pack.
3648 * pt.c (coerce_template_parms): Don't add an empty pack if
3650 (fn_type_unification): Pass tf_partial to coerce_template_parms.
3652 PR c++/86429 - constexpr variable in lambda.
3655 * constexpr.c (cxx_eval_constant_expression): In a lambda function,
3656 try evaluating the captured variable directly.
3658 2019-03-26 Jakub Jelinek <jakub@redhat.com>
3661 * semantics.c (finish_omp_atomic): Add warning_sentinel for
3662 -Wunused-value around finish_expr_stmt call.
3664 2019-03-25 Paolo Carlini <paolo.carlini@oracle.com>
3668 * parser.c (cp_parser_binary_expression): Don't call cp_fully_fold
3669 to undo the disabling of warnings.
3671 2019-03-25 Jason Merrill <jason@redhat.com>
3673 PR c++/87748 - substitution failure error with decltype.
3674 * pt.c (most_specialized_partial_spec): Clear
3675 processing_template_decl.
3677 2019-03-25 Marek Polacek <polacek@redhat.com>
3679 PR c++/89214 - ICE when initializing aggregates with bases.
3680 * typeck2.c (digest_init_r): Warn about object slicing instead of
3683 PR c++/89705 - ICE with reference binding with conversion function.
3684 * call.c (reference_binding): If the result of the conversion function
3685 is a prvalue of non-class type, use the cv-unqualified type.
3687 2019-03-25 Nathan Sidwell <nathan@acm.org>
3689 * lambda.c (maybe_add_lambda_conv_op): Don't add to comdat group.
3691 2019-03-22 Jakub Jelinek <jakub@redhat.com>
3694 * cp-tree.h (get_tls_wrapper_fn): Remove declaration.
3695 (maybe_get_tls_wrapper_call): Declare.
3696 * decl2.c (get_tls_wrapper_fn): Make static.
3697 (maybe_get_tls_wrapper_call): New function.
3698 * typeck.c (build_class_member_access_expr): Handle accesses to TLS
3700 * semantics.c (finish_qualified_id_expr): Likewise.
3701 (finish_id_expression_1): Use maybe_get_tls_wrapper_call.
3702 * pt.c (tsubst_copy_and_build): Likewise.
3705 * constexpr.c (struct constexpr_ctx): Add constexpr_ops_count member.
3706 (cxx_eval_constant_expression): When not skipping, not constant class
3707 or location wrapper, increment *ctx->constexpr_ops_count and if it is
3708 above constexpr_loop_nest_limit, diagnose failure.
3709 (cxx_eval_outermost_constant_expr): Add constexpr_ops_count and
3710 initialize ctx.constexpr_ops_count to its address.
3711 (is_sub_constant_expr): Likewise.
3713 2019-03-21 Jakub Jelinek <jakub@redhat.com>
3716 * call.c (filed_in_pset): Change pset from hash_set<tree> * to
3717 hash_set<tree, true> &, adjust uses accordingly.
3718 (build_aggr_conv): Change pset from hash_set<tree> *
3719 to hash_set<tree, true>. Replace goto fail; with return NULL;,
3723 * parser.c (cp_parser_lambda_introducer): Add ids and first_capture_id
3724 variables, check for duplicates in this function.
3725 * lambda.c (add_capture): Don't check for duplicates nor use
3727 (register_capture_members): Don't clear IDENTIFIER_MARKED here.
3729 2019-03-21 Paolo Carlini <paolo.carlini@oracle.com>
3732 * method.c (after_nsdmi_defaulted_late_checks): Avoid passing
3733 error_mark_node to comp_except_specs.
3735 2019-03-20 Jason Merrill <jason@redhat.com>
3737 PR c++/87480 - decltype of member access in default template arg
3738 * pt.c (type_unification_real): Accept a dependent result in
3741 2019-03-19 Martin Sebor <msebor@redhat.com>
3743 PR tree-optimization/89688
3744 * typeck2.c (store_init_value): Call braced_lists_to_string for more
3745 kinds of initializers.
3747 2019-03-18 Jason Merrill <jason@redhat.com>
3749 PR c++/89630 - ICE with dependent using-decl as template arg.
3750 * tree.c (cp_tree_equal): Always return false for USING_DECL.
3752 PR c++/89761 - ICE with sizeof... in pack expansion.
3753 * pt.c (argument_pack_element_is_expansion_p): Handle
3754 ARGUMENT_PACK_SELECT.
3756 PR c++/89640 - GNU attributes on lambda.
3757 * parser.c (cp_parser_lambda_declarator_opt): Allow GNU attributes.
3759 PR c++/89682 - wrong access error in default argument.
3760 * pt.c (tsubst_default_argument): Don't defer access checks.
3762 2019-03-18 Paolo Carlini <paolo.carlini@oracle.com>
3765 * semantics.c (finish_non_static_data_member): Check return value
3766 of context_for_name_lookup and immediately return error_mark_node
3769 2019-03-17 Jason Merrill <jason@redhat.com>
3771 PR c++/89571 - ICE with ill-formed noexcept on constructor.
3772 * pt.c (maybe_instantiate_noexcept): Only return false if defaulted.
3773 (regenerate_decl_from_template): Use it for noexcept-specs.
3775 2019-03-14 Jason Merrill <jason@redhat.com>
3777 * parser.c (cp_parser_decl_specifier_seq): Support C++20
3778 concept-definition syntax without 'bool'.
3780 2019-03-14 Jakub Jelinek <jakub@redhat.com>
3783 * semantics.c (finish_qualified_id_expr): Reject variable templates.
3786 * constexpr.c (struct constexpr_ctx): Change save_exprs type from
3787 hash_set<tree> to vec<tree>.
3788 (cxx_eval_call_expression): Adjust for save_exprs being a vec instead
3790 (cxx_eval_loop_expr): Likewise. Truncate the vector after each
3791 removal of SAVE_EXPRs from values.
3792 (cxx_eval_constant_expression) <case SAVE_EXPR>: Call safe_push
3793 method on save_exprs instead of add.
3795 2019-03-13 Jason Merrill <jason@redhat.com>
3797 PR c++/86521 - C++17 copy elision in initialization by constructor.
3798 * call.c (joust_maybe_elide_copy): New.
3801 2019-03-13 Marek Polacek <polacek@redhat.com>
3803 PR c++/88979 - further P0634 fix for constructors.
3804 * parser.c (cp_parser_decl_specifier_seq): Pass flags to
3805 cp_parser_constructor_declarator_p.
3806 (cp_parser_direct_declarator): Allow missing typename for constructor
3808 (cp_parser_constructor_declarator_p): Add FLAGS parameter. Pass it to
3809 cp_parser_type_specifier.
3811 PR c++/89686 - mixing init-capture and simple-capture in lambda.
3812 * parser.c (cp_parser_lambda_introducer): Give error when combining
3813 init-capture and simple-capture.
3815 PR c++/89660 - bogus error with -Wredundant-move.
3816 * typeck.c (maybe_warn_pessimizing_move): Only accept (T &) &arg
3817 as the std::move's argument. Don't call convert_for_initialization
3818 when warn_redundant_move isn't on.
3820 2019-03-11 Jason Merrill <jason@redhat.com>
3822 PR c++/86521 - wrong overload resolution with ref-qualifiers.
3823 * call.c (build_user_type_conversion_1): Don't use a conversion to a
3824 reference of the wrong rvalueness for direct binding.
3826 2019-03-11 Martin Liska <mliska@suse.cz>
3828 * cvt.c (build_expr_type_conversion): Wrap apostrophes
3829 in gcc internal format with %'.
3830 * decl.c (check_no_redeclaration_friend_default_args): Likewise.
3831 (grokfndecl): Likewise.
3832 * name-lookup.c (do_pushtag): Likewise.
3833 * pt.c (unify_parameter_deduction_failure): Likewise.
3834 (unify_template_deduction_failure): Likewise.
3836 2019-03-11 Martin Liska <mliska@suse.cz>
3838 * call.c (convert_arg_to_ellipsis): Wrap an option name
3839 in a string format message and fix GNU coding style.
3840 (build_over_call): Likewise.
3841 * class.c (check_field_decl): Likewise.
3842 (layout_nonempty_base_or_field): Likewise.
3843 * constexpr.c (cxx_eval_loop_expr): Likewise.
3844 * cvt.c (type_promotes_to): Likewise.
3845 * decl.c (cxx_init_decl_processing): Likewise.
3846 (mark_inline_variable): Likewise.
3847 (grokdeclarator): Likewise.
3848 * decl2.c (record_mangling): Likewise.
3849 * error.c (maybe_warn_cpp0x): Likewise.
3850 * except.c (doing_eh): Likewise.
3851 * mangle.c (maybe_check_abi_tags): Likewise.
3852 * parser.c (cp_parser_diagnose_invalid_type_name): Likewise.
3853 (cp_parser_userdef_numeric_literal): Likewise.
3854 (cp_parser_primary_expression): Likewise.
3855 (cp_parser_unqualified_id): Likewise.
3856 (cp_parser_pseudo_destructor_name): Likewise.
3857 (cp_parser_builtin_offsetof): Likewise.
3858 (cp_parser_lambda_expression): Likewise.
3859 (cp_parser_lambda_introducer): Likewise.
3860 (cp_parser_lambda_declarator_opt): Likewise.
3861 (cp_parser_selection_statement): Likewise.
3862 (cp_parser_init_statement): Likewise.
3863 (cp_parser_decomposition_declaration): Likewise.
3864 (cp_parser_function_specifier_opt): Likewise.
3865 (cp_parser_static_assert): Likewise.
3866 (cp_parser_simple_type_specifier): Likewise.
3867 (cp_parser_namespace_definition): Likewise.
3868 (cp_parser_using_declaration): Likewise.
3869 (cp_parser_ctor_initializer_opt_and_function_body): Likewise.
3870 (cp_parser_initializer_list): Likewise.
3871 (cp_parser_type_parameter_key): Likewise.
3872 (cp_parser_member_declaration): Likewise.
3873 (cp_parser_try_block): Likewise.
3874 (cp_parser_std_attribute_spec): Likewise.
3875 (cp_parser_requires_clause_opt): Likewise.
3876 * pt.c (check_template_variable): Likewise.
3877 (check_default_tmpl_args): Likewise.
3878 (push_tinst_level_loc): Likewise.
3879 (instantiate_pending_templates): Likewise.
3880 (invalid_nontype_parm_type_p): Likewise.
3881 * repo.c (get_base_filename): Likewise.
3882 * rtti.c (typeid_ok_p): Likewise.
3883 (build_dynamic_cast_1): Likewise.
3884 * tree.c (maybe_warn_parm_abi): Likewise.
3886 2019-03-08 Jakub Jelinek <jakub@redhat.com>
3889 * parser.c (cp_parser_template_declaration_after_parameters): Avoid
3890 one space before " at the end of line and another after " on another
3891 line in a string literal.
3893 PR tree-optimization/89550
3894 * semantics.c (maybe_convert_cond): Only set TREE_NO_WARNING if
3895 warning_at returned true.
3896 * decl2.c (c_parse_final_cleanups): Likewise.
3897 * typeck.c (convert_for_assignment): Likewise.
3898 * decl.c (finish_function): Likewise.
3901 * parser.c (cp_parser_asm_definition): Just warn instead of error
3902 on volatile qualifier outside of function body.
3905 * constexpr.c (potential_constant_expression_1): Reject
3906 REINTERPRET_CAST_P NOP_EXPRs.
3909 * call.c (joust): Call print_z_candidate only if pedwarn returned
3912 2019-03-07 Jason Merrill <jason@redhat.com>
3914 PR c++/88123 - lambda and using-directive.
3915 * name-lookup.c (op_unqualified_lookup)
3916 (maybe_save_operator_binding, discard_operator_bindings)
3917 (push_operator_bindings): New.
3918 * typeck.c (build_x_binary_op, build_x_unary_op): Call
3919 maybe_save_operator_binding.
3920 * decl.c (start_preparsed_function): Call push_operator_bindings.
3921 * tree.c (cp_free_lang_data): Call discard_operator_bindings.
3923 PR c++/88820 - ICE with CTAD and member template used in DMI.
3924 * pt.c (do_class_deduction): Handle parm used as its own arg.
3926 2019-03-07 Jakub Jelinek <jakub@redhat.com>
3929 * parser.c (cp_parser_asm_definition): Parse asm qualifiers even
3930 at toplevel, but diagnose them.
3932 2019-03-06 Jason Merrill <jason@redhat.com>
3934 PR c++/89381 - implicit copy and using-declaration.
3935 * class.c (classtype_has_move_assign_or_move_ctor_p): Don't consider
3936 op= brought in by a using-declaration.
3938 2019-03-06 Jakub Jelinek <jakub@redhat.com>
3941 * init.c (build_value_init_noctor): Ignore flexible array members.
3943 2019-03-06 Jason Merrill <jason@redhat.com>
3945 PR c++/89576 - if constexpr of lambda capture.
3946 * semantics.c (maybe_convert_cond): Do convert a non-dependent
3947 condition in a template.
3948 * typeck.c (condition_conversion): Handle being called in a
3951 2019-03-06 Marek Polacek <polacek@redhat.com>
3953 PR c++/87378 - bogus -Wredundant-move warning.
3954 * typeck.c (maybe_warn_pessimizing_move): See if the maybe-rvalue
3955 overload resolution would actually succeed.
3957 2019-03-05 Jason Merrill <jason@redhat.com>
3959 * class.c (is_really_empty_class): Add ignore_vptr parm.
3960 (trivial_default_constructor_is_constexpr): Pass it.
3961 * call.c (build_over_call): Pass it.
3962 * constexpr.c (cxx_eval_constant_expression): Pass it instead of
3963 checking TYPE_POLYMORPHIC_P.
3964 (cxx_eval_component_reference, potential_constant_expression_1):
3966 * cp-gimplify.c (simple_empty_class_p): Pass it.
3967 * init.c (expand_aggr_init_1): Pass it.
3969 2019-03-04 Paolo Carlini <paolo.carlini@oracle.com>
3972 * parser.c (cp_parser_class_head): Reject TYPE_BEING_DEFINED too.
3974 2019-03-04 Jakub Jelinek <jakub@redhat.com>
3977 * call.c (field_in_pset): New function.
3978 (build_aggr_conv): Handle CONSTRUCTOR_IS_DESIGNATED_INIT correctly.
3980 2019-03-02 Jakub Jelinek <jakub@redhat.com>
3983 * cp-tree.h (CONSTRUCTOR_IS_DESIGNATED_INIT): Define.
3984 * parser.c (cp_parser_braced_list): Adjust cp_parser_initializer_list
3985 caller, set CONSTRUCTOR_IS_DESIGNATED_INIT.
3986 (cp_parser_initializer_list): Add designated parameter, set *designated
3987 to a bool whether any designators were parsed.
3988 * decl.c (reshape_init): Copy over CONSTRUCTOR_IS_DESIGNATED_INIT if
3990 * pt.c (tsubst_copy_and_build): Likewise.
3991 * call.c (implicit_conversion): If CONSTRUCTOR_IS_DESIGNATED_INIT,
3992 don't call build_list_conv, nor build_complex_conv, nor attempt to
3993 convert a single element initializer to scalar.
3995 2019-03-01 Marek Polacek <polacek@redhat.com>
3997 PR c++/89537 - missing location for error with non-static member fn.
3998 * call.c (resolve_args): Use EXPR_LOCATION.
3999 * typeck.c (build_class_member_access_expr): Use input_location.
4001 PR c++/89532 - ICE with incomplete type in decltype.
4002 * semantics.c (finish_compound_literal): Return error_mark_node
4003 if digest_init_flags returns error_mark_node.
4005 2019-03-01 Jakub Jelinek <jakub@redhat.com>
4007 Implement P1002R1, Try-catch blocks in constexpr functions
4009 * parser.c (cp_parser_ctor_initializer_opt_and_function_body):
4010 Diagnose constexpr ctor or function with function-try-block with
4011 pedwarn for c++17 and earlier. Formatting fix.
4012 (cp_parser_try_block): Use pedwarn instead of error and only for
4013 c++17 and earlier when try block appears in constexpr function.
4014 * constexpr.c (build_constexpr_constructor_member_initializers):
4015 Handle TRY_BLOCK here instead of erroring on it.
4017 2019-02-28 Jason Merrill <jason@redhat.com>
4019 PR c++/88183 - ICE with .* fold-expression.
4020 * pt.c (fold_expression) [DOTSTAR_EXPR]: Remove special handling.
4022 PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
4023 * class.c, lambda.c, pt.c: Revert earlier change.
4024 * lambda.c (add_capture): Don't special-case capture of dependent
4027 * name-lookup.c (print_binding_level): Print this_entity.
4029 2019-02-27 Marek Polacek <polacek@redhat.com>
4031 PR c++/88857 - ICE with value-initialization of argument in template.
4032 * call.c (convert_like_real): Don't call build_value_init in template.
4034 2019-02-27 Jason Merrill <jason@redhat.com>
4036 PR c++/86969 - ICE with constexpr if and recursive generic lambdas.
4037 * semantics.c (process_outer_var_ref): Do capture dependent vars.
4038 * class.c (finish_struct): Only add TAG_DEFN if T is in
4039 current_function_decl.
4040 * lambda.c (vla_capture_type): Force the capture type out into the
4041 lambda's enclosing function.
4042 (add_capture): Pass in the lambda.
4043 * pt.c (tsubst_lambda_expr): complete_type a VLA capture type.
4045 2019-02-27 Marek Polacek <polacek@redhat.com>
4047 PR c++/89511 - ICE with using-declaration and unscoped enumerator.
4048 * parser.c (cp_parser_using_declaration): For an unscoped enum
4049 only use its context if it's not a function declaration.
4051 2019-02-27 Paolo Carlini <paolo.carlini@oracle.com>
4054 * method.c (process_subob_fn): When maybe_instantiate_noexcept
4055 returns false don't call merge_exception_specifiers.
4057 2019-02-27 Paolo Carlini <paolo.carlini@oracle.com>
4060 * parser.c (cp_parser_noexcept_specification_opt): Return NULL_TREE
4061 for a non-constant parsed expression.
4063 2019-02-26 Jakub Jelinek <jakub@redhat.com>
4066 * constexpr.c (cxx_eval_store_expression): When changing active union
4067 member, set no_zero_init.
4069 2019-02-23 Marek Polacek <polacek@redhat.com>
4071 PR c++/88294 - ICE with non-constant noexcept-specifier.
4072 * pt.c (maybe_instantiate_noexcept): Set up the list of local
4073 specializations. Set current_class_{ptr,ref}.
4075 2019-02-22 David Malcolm <dmalcolm@redhat.com>
4078 * parser.c (cp_parser_unqualified_id): Capture and use locations
4081 2019-02-22 Marek Polacek <polacek@redhat.com>
4083 PR c++/89420 - ICE with CAST_EXPR in explicit-specifier.
4084 * decl.c (build_explicit_specifier): Don't check
4085 processing_template_decl. Call instantiation_dependent_expression_p
4086 instead of value_dependent_expression_p. Call
4087 instantiate_non_dependent_expr_sfinae before
4088 build_converted_constant_expr instead of calling
4089 instantiate_non_dependent_expr after it. Add
4090 processing_template_decl_sentinel.
4092 2019-02-22 Thomas Schwinge <thomas@codesourcery.com>
4094 * parser.c (cp_parser_oacc_simple_clause): Remove parser formal
4095 parameter, move loc formal parameter to the front. Adjust all
4097 (cp_parser_oacc_shape_clause): Add loc formal parameter. Adjust
4100 2019-02-21 Jason Merrill <jason@redhat.com>
4102 PR c++/87685 - generic lambda 'this' capture error.
4103 * lambda.c (lambda_expr_this_capture): Change add_capture_p to int.
4104 (maybe_generic_this_capture): Pass -1.
4106 PR c++/88394 - ICE with VLA init-capture.
4107 * lambda.c (is_normal_capture_proxy): Check DECL_CAPTURED_VARIABLE.
4109 PR c++/88869 - C++17 ICE with CTAD and explicit specialization.
4110 * pt.c (do_class_deduction): Don't include explicit specialization
4113 PR c++/89422 - ICE with -g and lambda in default arg in template.
4114 * pt.c (tsubst_function_decl): SET_DECL_FRIEND_CONTEXT sooner.
4116 2019-02-21 Jason Merrill <jason@redhat.com>
4118 PR c++/88419 - C++17 ICE with class template arg deduction.
4119 * pt.c (make_template_placeholder): Set TYPE_CANONICAL after
4120 CLASS_PLACEHOLDER_TEMPLATE.
4122 2019-02-21 Jakub Jelinek <jakub@redhat.com>
4125 * constexpr.c (struct constexpr_fundef): Add parms and result members.
4126 (retrieve_constexpr_fundef): Adjust for the above change.
4127 (register_constexpr_fundef): Save constexpr body with copy_fn,
4128 temporarily set DECL_CONTEXT on DECL_RESULT before that.
4129 (get_fundef_copy): Change FUN argument to FUNDEF with
4130 constexpr_fundef * type, grab body and parms/result out of
4131 constexpr_fundef struct and temporarily change it for copy_fn calls
4133 (cxx_eval_builtin_function_call): For __builtin_FUNCTION temporarily
4134 adjust current_function_decl from ctx->call context. Test
4135 !potential_constant_expression instead of !is_constant_expression.
4136 (cxx_bind_parameters_in_call): Grab parameters from new_call. Undo
4137 convert_for_arg_passing changes for TREE_ADDRESSABLE type passing.
4138 (cxx_eval_call_expression): Adjust get_fundef_copy caller.
4139 (cxx_eval_conditional_expression): For IF_STMT, allow then or else
4140 operands to be NULL.
4141 (label_matches): Handle BREAK_STMT and CONTINUE_STMT.
4142 (cxx_eval_loop_expr): Add support for FOR_STMT, WHILE_STMT and DO_STMT.
4143 (cxx_eval_switch_expr): Add support for SWITCH_STMT.
4144 (cxx_eval_constant_expression): Handle IF_STMT, FOR_STMT, WHILE_STMT,
4145 DO_STMT, CONTINUE_STMT, SWITCH_STMT, BREAK_STMT and CONTINUE_STMT.
4146 For SIZEOF_EXPR, recurse on the result of fold_sizeof_expr. Ignore
4147 DECL_EXPR with USING_DECL operand.
4148 * lambda.c (maybe_add_lambda_conv_op): Build thisarg using
4149 build_int_cst to make it a valid constant expression.
4151 2019-02-20 Jason Merrill <jason@redhat.com>
4153 PR c++/88690 - C++17 ICE with empty base in aggregate.
4154 * typeck2.c (process_init_constructor_record): Skip trivial
4155 initialization of an empty base.
4157 2019-02-21 Richard Biener <rguenther@suse.de>
4160 * vtable-class-hierarchy.c (vtv_generate_init_routine): Do not
4161 make symtab process new functions here.
4163 2019-02-20 Jason Merrill <jason@redhat.com>
4165 PR c++/87921 - wrong error with inline static data member.
4166 * decl2.c (finish_static_data_member_decl): Don't set DECL_IN_AGGR_P
4167 for a non-template inline variable. Do nothing for an
4168 already-instantiated variable.
4169 (c_parse_final_cleanups): Check DECL_IN_AGGR_P without
4171 * decl.c (check_initializer): Likewise.
4172 (make_rtl_for_nonlocal_decl): Likewise.
4173 * pt.c (instantiate_decl): Likewise.
4174 * typeck2.c (store_init_value): Likewise.
4176 2019-02-20 Jakub Jelinek <jakub@redhat.com>
4179 * decl2.c (c_parse_final_cleanups): Move TREE_ASM_WRITTEN setting
4180 for flag_syntax_only from here...
4181 * semantics.c (expand_or_defer_fn_1): ... here.
4184 * decl.c (maybe_commonize_var): When clearing TREE_PUBLIC and
4185 DECL_COMMON, set DECL_INTERFACE_KNOWN.
4188 * constexpr.c (cxx_eval_store_expression): Diagnose changing of active
4189 union member for -std=c++17 and earlier.
4191 2019-02-19 Jason Merrill <jason@redhat.com>
4193 PR c++/87513 - 'sorry' mangling PMF template-id.
4194 * mangle.c (write_expression): Handle SCOPE_REF to BASELINK.
4196 2019-02-19 Jason Merrill <jason@redhat.com>
4198 PR c++/88380 - wrong-code with flexible array and NSDMI.
4199 * typeck2.c (process_init_constructor_record): Skip flexarrays.
4201 2019-02-20 will wray <wjwray@gmail.com>
4203 PR c++/88572 - wrong handling of braces on scalar init.
4204 * decl.c (reshape_init_r): Allow braces around scalar initializer
4205 within aggregate init. Reject double braced-init of scalar
4208 2019-02-20 Paolo Carlini <paolo.carlini@oracle.com>
4211 * pt.c (tsubst_init): Diagnose an initializer expanding to an
4212 empty list of expressions; tweak wrt dependent types.
4213 (regenerate_decl_from_template): For VAR_DECLs call tsubst_init
4214 instead of tsubst_expr.
4216 2019-02-19 Jason Merrill <jason@redhat.com>
4218 PR c++/88368 - wrong 'use of deleted function'
4219 * method.c (walk_field_subobs): Remember errors from get_nsdmi.
4220 (get_defaulted_eh_spec): Call push_tinst_level.
4221 * pt.c (maybe_instantiate_noexcept): Keep error_mark_node.
4222 * typeck2.c (merge_exception_specifiers): Handle error_mark_node.
4224 2019-02-19 Chung-Lin Tang <cltang@codesourcery.com>
4227 * parser.c (cp_parser_oacc_clause_wait): Add representation of wait
4228 clause without argument as 'wait (GOMP_ASYNC_NOVAL)', adjust comments.
4230 2019-02-19 Jakub Jelinek <jakub@redhat.com>
4233 * lambda.c (maybe_generic_this_capture): Don't check
4234 DECL_NONSTATIC_MEMBER_FUNCTION_P on USING_DECLs.
4237 * typeck.c (build_reinterpret_cast_1): Don't handle void to
4238 && conversion go through build_target_expr_with_type.
4241 * error.c (qualified_name_lookup_error): Only call
4242 suggest_alternative_in_scoped_enum if name is IDENTIFIER_NODE.
4244 2019-02-19 Tom Honermann <tom@honermann.net>
4246 * name-lookup.c (get_std_name_hint): Added u8string as a name hint.
4248 2019-02-18 Jason Merrill <jason@redhat.com>
4250 PR c++/89336 - multiple stores in constexpr stmt.
4251 * constexpr.c (cxx_eval_store_expression): Preevaluate scalar or
4254 * pt.c (check_explicit_specialization): If the declarator is a
4255 template-id, only check whether the arguments are dependent.
4257 Improve duplicate [[likely]] diagnostic.
4258 * parser.c (cp_parser_statement): Make attrs_loc a range. Pass it
4259 to process_stmt_hotness_attribute.
4260 * cp-gimplify.c (process_stmt_hotness_attribute): Take attrs_loc.
4261 (genericize_if_stmt): Use likely/unlikely instead of predictor_name.
4263 2019-02-17 Marek Polacek <polacek@redhat.com>
4265 PR c++/89217 - ICE with list-initialization in range-based for loop.
4266 * constexpr.c (unshare_constructor): No longer static.
4267 * cp-tree.h (unshare_constructor): Declare.
4268 * semantics.c (finish_compound_literal): When dealing with a
4269 non-dependent expression in a template, return the original
4270 expression. Pass LOOKUP_NO_NARROWING to digest_init_flags.
4272 2019-02-13 Marek Polacek <polacek@redhat.com>
4274 PR c++/89297 - ICE with OVERLOAD in template.
4275 * semantics.c (finish_compound_literal): Call
4276 instantiate_non_dependent_expr_sfinae.
4278 2019-02-13 Alexandre Oliva <aoliva@redhat.com>
4281 * cp-tree.h (USING_DECL_SCOPE): Use result rather than type.
4282 * name-lookup.c (strip_using_decl): Use USING_DECL_SCOPE.
4283 * search.c (protected_accessible_p): Follow USING_DECL_DECLS.
4284 (shared_member_p): Likewise.
4285 (lookup_member): Likewise.
4286 * decl.c (grok_special_member_properties): Skip USING_DECLs.
4287 * semantics.c (finish_omp_declare_simd_methods): Likewise.
4288 (finish_qualified_id_expr): Do not call shared_member_p with
4292 * pt.c (tsubst_lambda_expr): Avoid duplicate tsubsting.
4293 Move cp_evaluated resetting before signature tsubsting.
4294 (gen_elem_of_pack_expansion_instantiation): Separate local
4295 specializations per index.
4297 2019-02-13 David Malcolm <dmalcolm@redhat.com>
4300 * class.c (add_method): Drop destructor assertion.
4302 2019-02-13 Paolo Carlini <paolo.carlini@oracle.com>
4305 * decl.c (make_typename_type): Allow for TYPE_PACK_EXPANSION as
4306 context (the first argument).
4307 * pt.c (tsubst, case TYPENAME_TYPE): Handle TYPE_PACK_EXPANSION
4310 2019-02-12 Jason Merrill <jason@redhat.com>
4312 PR c++/89144 - link error with constexpr initializer_list.
4313 * call.c (convert_like_real) [ck_list]: Don't allocate a temporary
4314 array for an empty list.
4315 * typeck2.c (store_init_value): Don't use cxx_constant_init in a
4318 2019-02-11 Jason Merrill <jason@redhat.com>
4320 PR c++/89241 - ICE with __func__ in lambda in template.
4321 * pt.c (enclosing_instantiation_of): Also check
4322 instantiated_lambda_fn_p for the template context.
4324 2019-02-11 Marek Polacek <polacek@redhat.com>
4326 PR c++/89212 - ICE converting nullptr to pointer-to-member-function.
4327 * pt.c (tsubst_copy_and_build) <case CONSTRUCTOR>: Return early for
4328 null member pointer value.
4330 2019-02-11 Jakub Jelinek <jakub@redhat.com>
4333 * pt.c (convert_nontype_argument): Pass true as manifestly_const_eval
4334 to maybe_constant_value calls.
4336 2019-02-11 Marek Polacek <polacek@redhat.com>
4338 * typeck2.c (digest_init_r): Remove commented code.
4340 2019-02-11 Martin Sebor <msebor@redhat.com>
4343 * decl.c (compute_array_index_type_loc): Preserve signed sizes
4344 for diagnostics. Call valid_array_size_p instead of error.
4345 * init.c (build_new_1): Compute size for diagnostic. Call
4346 invalid_array_size_error
4347 (build_new): Call valid_array_size_p instead of error.
4349 2019-02-07 Alexandre Oliva <aoliva@redhat.com>
4352 * call.c (compare_ics): Deal with ck_aggr in either cs.
4354 2019-02-06 David Malcolm <dmalcolm@redhat.com>
4357 * call.c (get_location_for_expr_unwinding_for_system_header): New
4359 (conversion_null_warnings): Use it when getting locations for
4360 EXPR, effectively adding a call to
4361 get_location_for_expr_unwinding_for_system_header for
4362 -Wconversion-null and making use of EXPR_LOCATION for
4363 -Wzero-as-null-pointer-constant.
4365 2019-02-05 Jakub Jelinek <jakub@redhat.com>
4368 * optimize.c (maybe_thunk_body): Clear TREE_ADDRESSABLE on
4369 PARM_DECLs of the thunk.
4370 * lambda.c (maybe_add_lambda_conv_op): Likewise.
4372 2019-02-05 Marek Polacek <polacek@redhat.com>
4374 PR c++/89158 - by-value capture of constexpr variable broken.
4375 * call.c (convert_like_real) <case ck_user>: Call mark_exp_read
4376 instead of mark_rvalue_use.
4378 2019-02-05 Alexandre Oliva <aoliva@redhat.com>
4381 * pt.c (instantiates_primary_template_p): New.
4382 (type_dependent_expression_p): Use it.
4384 2019-02-01 Jason Merrill <jason@redhat.com>
4386 PR c++/88761 - ICE with reference capture of constant.
4387 * lambda.c (mark_const_cap_r): Do walk subtrees of DECL_EXPR for
4390 2019-02-01 Marek Polacek <polacek@redhat.com>
4392 PR c++/88325 - ICE with invalid out-of-line template member definition.
4393 * parser.c (cp_parser_class_name): Don't call make_typename_type
4396 2019-02-01 Jakub Jelinek <jakub@redhat.com>
4399 * parser.c (cp_parser_gnu_attributes_opt): Set ok to false
4400 if require_open failed.
4402 2019-01-31 Marek Polacek <polacek@redhat.com>
4404 PR c++/89083, c++/80864 - ICE with list initialization in template.
4405 * constexpr.c (adjust_temp_type): Use copy_node and change the type
4406 instead of using build_constructor.
4407 * decl.c (reshape_init_r): Don't reshape a digested initializer.
4408 Return the initializer for COMPOUND_LITERAL_P.
4410 PR c++/88983 - ICE with switch in constexpr function.
4411 * constexpr.c (cxx_eval_switch_expr): Use SWITCH_COND and SWITCH_BODY.
4412 (cxx_eval_constant_expression) <case COND_EXPR>: Don't look for the
4413 label in the else branch if we found it in the then branch.
4415 2019-01-30 Jason Merrill <jason@redhat.com>
4417 PR c++/88752 - ICE with lambda and constexpr if.
4418 * cp-tree.h (LAMBDA_EXPR_INSTANTIATED): New.
4419 * pt.c (tsubst_lambda_expr): Set it.
4420 (instantiated_lambda_fn_p): Check it.
4421 (enclosing_instantiation_of): Use it.
4423 2019-01-31 Jakub Jelinek <jakub@redhat.com>
4426 * cxx-pretty-print.c (pp_cxx_enumeration_constant): Print always as
4427 a C cast in pp_c_flag_gnu_v3 mode.
4429 2019-01-30 Jakub Jelinek <jakub@redhat.com>
4432 * lambda.c (is_capture_proxy): Don't return true for
4433 DECL_OMP_PRIVATIZED_MEMBER artificial vars.
4435 2019-01-30 Marek Polacek <polacek@redhat.com>
4437 PR c++/89119 - ICE with value-initialization in template.
4438 * pt.c (tsubst_copy_and_build): Handle RANGE_EXPR.
4440 2019-01-29 Jason Merrill <jason@redhat.com>
4442 PR c++/86943 - wrong code converting lambda to function pointer.
4443 * lambda.c (maybe_add_lambda_conv_op): Use a template-id in the
4444 call. Only forward parms for decltype.
4445 * pt.c (tsubst_copy_and_build) [CALL_EXPR]: Handle CALL_FROM_THUNK_P
4447 * typeck.c (check_return_expr): Don't mess with a thunk call.
4449 2019-01-28 Jason Merrill <jason@redhat.com>
4451 PR c++/89089 - ICE with [[no_unique_address]].
4452 PR c++/88865 - wrong layout with [[no_unique_address]].
4453 * class.c (check_field_decls): A potentially-overlapping field makes
4454 the class non-layout-POD, but not non-empty.
4455 (end_of_class): Always consider empty data members.
4456 (layout_class_type): Set DECL_SIZE for empty fields.
4458 2019-01-28 Marek Polacek <polacek@redhat.com>
4460 PR c++/88358 - name wrongly treated as type.
4461 * parser.c (cp_parser_direct_declarator): Don't assume a qualified-id
4462 in parameter-list is a type if the function's declarator-id is not
4465 2019-01-27 Marek Polacek <polacek@redhat.com>
4467 PR c++/88815 - narrowing conversion lost in decltype.
4468 PR c++/78244 - narrowing conversion in template not detected.
4469 * cp-tree.h (CONSTRUCTOR_IS_DEPENDENT): New.
4470 * pt.c (instantiation_dependent_r): Consider a CONSTRUCTOR with
4471 CONSTRUCTOR_IS_DEPENDENT instantiation-dependent.
4472 * semantics.c (finish_compound_literal): When the compound literal
4473 isn't instantiation-dependent and the type isn't type-dependent,
4474 fall back to the normal processing. Set CONSTRUCTOR_IS_DEPENDENT.
4476 PR c++/89024 - ICE with incomplete enum type.
4477 * call.c (standard_conversion): When converting an
4478 ARITHMETIC_TYPE_P to an incomplete type, return NULL.
4480 2019-01-25 Paolo Carlini <paolo.carlini@oracle.com>
4483 * call.c (build_op_delete_call): Implement 7.6.2.5/(10.1).
4484 * decl2.c (coerce_delete_type): Use build_pointer_type instead
4487 2019-01-24 Jason Merrill <jason@redhat.com>
4489 PR c++/89001 - mangling of reference temporaries
4490 * cp-tree.h (struct saved_scope): Add ref_temp_count.
4491 (current_ref_temp_count): New macro.
4492 * mangle.c (mangle_ref_init_variable): Use it.
4493 * typeck2.c (store_init_value): Clear it.
4494 * call.c (make_temporary_var_for_ref_to_temp): Copy public and
4497 2019-01-24 Jakub Jelinek <jakub@redhat.com>
4500 * semantics.c (finish_omp_cancel): Diagnose more than one if
4501 on #pragma omp cancel with different modifiers. Use
4502 maybe_convert_cond when not in template or build_x_binary_op
4505 2019-01-23 Marek Polacek <polacek@redhat.com>
4507 PR c++/88757 - qualified name treated wrongly as type.
4508 * parser.c (cp_parser_direct_declarator): Don't treat qualified-ids
4509 in parameter-list as types if name lookup for declarator-id didn't
4510 find one or more function templates.
4512 2019-01-23 Jakub Jelinek <jakub@redhat.com>
4515 * cp-gimplify.c (genericize_cp_loop): Call begin_bc_block only
4516 after genericizing cond and incr expressions.
4519 * cp-gimplify.c (genericize_switch_stmt): Move cond genericization
4520 before the begin_bc_block call.
4522 2019-01-21 Jason Merrill <jason@redhat.com>
4524 PR c++/87893 - constexpr ctor ICE on ARM.
4525 PR c++/88293 - ICE with comma expression.
4526 * constexpr.c (initialized_type): Don't shortcut non-void type.
4527 Handle COMPOUND_EXPR.
4528 (cxx_eval_outermost_constant_expr): Return early for void type.
4530 2019-01-21 Jakub Jelinek <jakub@redhat.com>
4533 * optimize.c (cxx_copy_decl): New function.
4534 (clone_body): Use it instead of copy_decl_no_change.
4537 * typeck.c (cp_build_binary_op): Don't instrument
4538 SANITIZE_POINTER_COMPARE if processing_template_decl.
4539 (pointer_diff): Similarly for SANITIZE_POINTER_SUBTRACT.
4541 2019-01-18 Jason Merrill <jason@redhat.com>
4543 PR c++/88875 - error with explicit list constructor.
4544 * call.c (reference_binding): Don't modify EXPR. Set
4545 need_temporary_p on the ck_user conversion for a temporary.
4546 (convert_like_real): Check it.
4548 2019-01-18 H.J. Lu <hongjiu.lu@intel.com>
4552 * call.c (convert_for_arg_passing): Upate the
4553 warn_for_address_or_pointer_of_packed_member call.
4554 * typeck.c (convert_for_assignment): Likewise.
4556 2019-01-17 Jason Merrill <jason@redhat.com>
4558 PR c++/86205 - ICE with ?: of throw and template-id.
4559 * pt.c (resolve_nondeduced_context_or_error): Split out from...
4560 * typeck.c (decay_conversion): ...here.
4561 * call.c (build_conditional_expr_1): Use it.
4563 PR c++/86740, ICE with constexpr if and nested generic lambdas.
4564 * tree.c (cp_walk_subtrees): Handle LAMBDA_EXPR.
4566 2019-01-17 Paolo Carlini <paolo.carlini@oracle.com>
4568 * decl.c (grokdeclarator): Use typespec_loc in error messages
4569 about 'auto' and trailing return type.
4571 2019-01-17 David Malcolm <dmalcolm@redhat.com>
4574 * class.c (add_method): Don't use DECL_DESTRUCTOR_P on
4577 2019-01-17 Nathan Sidwell <nathan@acm.org>
4580 * semantics.c (process_outer_var_ref): Only skip dependent types
4583 2019-01-17 Alexandre Oliva <aoliva@redhat.com>
4586 * cp-tree.h (saved_scope): Add suppress_location_wrappers.
4587 * name-lookup.c (do_push_to_top_level): Save and reset it.
4588 (do_pop_from_top_level): Restore it.
4591 * pt.c (make_template_placeholder): Use auto_identifier.
4592 (is_auto): Drop CLASS_PLACEHOLDER_TEMPLATE test.
4593 * error.c (dump_type): Handle template placeholders.
4594 * cxx-pretty-print.c (pp_cx_unqualified_id): Likewise.
4597 * cvt.c (convert_to_void): Handle all cdtor calls as if
4600 2019-01-16 Paolo Carlini <paolo.carlini@oracle.com>
4602 * decl.c (grokdeclarator): Use locations[ds_storage_class] in
4603 error messages about ill-formed uses of mutable.
4605 2019-01-16 Marek Polacek <polacek@redhat.com>
4607 PR c++/78244 - narrowing conversion in template not detected.
4608 * call.c (perform_implicit_conversion_flags): Set
4609 IMPLICIT_CONV_EXPR_BRACED_INIT.
4610 * cp-tree.h (IMPLICIT_CONV_EXPR_BRACED_INIT): New.
4611 * pt.c (tsubst_copy_and_build): Use it.
4613 2019-01-15 David Malcolm <dmalcolm@redhat.com>
4616 * pt.c (build_deduction_guide): Bail out if tsubst_arg_types
4619 2019-01-15 Paolo Carlini <paolo.carlini@oracle.com>
4621 * decl.c (start_decl): Improve error location.
4622 * decl2.c (grokfield): Likewise.
4624 2019-01-15 Paolo Carlini <paolo.carlini@oracle.com>
4626 * decl.c (grokdeclarator): Move further up the location_t loc
4627 declaration and use the location when building a TYPE_DECL for
4629 * decl2.c (grokbitfield): Use DECL_SOURCE_LOCATION in the error
4630 about an ill-formed bit-field as typedef.
4632 2019-01-14 Marek Polacek <polacek@redhat.com>
4634 PR c++/88830 - ICE with abstract class.
4635 * decl2.c (maybe_emit_vtables): Check CLASSTYPE_LAZY_DESTRUCTOR.
4638 PR c++/88825 - ICE with bogus function return type deduction.
4639 * typeck.c (can_do_nrvo_p): Check error_mark_node.
4641 2019-01-14 Tom Honermann <tom@honermann.net>
4643 Implement P0482R5, char8_t: A type for UTF-8 characters and strings
4644 * cvt.c (type_promotes_to): Handle char8_t promotion.
4645 * decl.c (grokdeclarator): Handle invalid type specifier
4646 combinations involving char8_t.
4647 * lex.c (init_reswords): Add char8_t as a reserved word.
4648 * mangle.c (write_builtin_type): Add name mangling for char8_t (Du).
4649 * parser.c (cp_keyword_starts_decl_specifier_p)
4650 (cp_parser_simple_type_specifier): Recognize char8_t as a simple
4652 (cp_parser_string_literal): Use char8_array_type_node for the type
4654 (cp_parser_set_decl_spec_type): Tolerate char8_t typedefs in system
4656 * rtti.c (emit_support_tinfos): type_info support for char8_t.
4657 * tree.c (char_type_p): Recognize char8_t as a character type.
4658 * typeck.c (string_conv_p): Handle conversions of u8 string
4659 literals of char8_t type.
4660 (check_literal_operator_args): Handle UDLs with u8 string literals
4662 * typeck2.c (ordinary_char_type_p): New.
4663 (digest_init_r): Disallow initializing a char array with a u8 string
4666 2019-01-14 Martin Liska <mliska@suse.cz>
4668 PR gcov-profile/88263
4669 * decl2.c (get_tls_wrapper_fn): Use DECL_SOURCE_LOCATION
4670 as location of the TLS wrapper.
4672 2019-01-12 Paolo Carlini <paolo.carlini@oracle.com>
4674 * decl.c (cp_finish_decl): Improve error location.
4675 * decl2.c (grokfield): Likewise, improve two locations.
4677 2019-01-11 Marek Polacek <polacek@redhat.com>
4679 PR c++/88692, c++/87882 - -Wredundant-move false positive with *this.
4680 * typeck.c (maybe_warn_pessimizing_move): Return if ARG isn't
4683 2019-01-11 Jason Merrill <jason@redhat.com>
4685 PR c++/88312 - pack expansion of decltype.
4686 * pt.c (instantiation_dependent_r): A template non-type parameter
4687 pack is instantiation-dependent.
4689 2019-01-11 Jason Merrill <jason@redhat.com>
4691 PR c++/88613 - ICE with use of const var in lambda.
4692 * expr.c (mark_use): Fix location wrapper handling.
4693 * cp-gimplify.c (cp_fold_maybe_rvalue): Call mark_rvalue_use.
4695 2019-01-11 Tobias Burnus <burnus@net-b.de>
4698 * decl2.c (maybe_emit_vtables): If needed, generate code for
4699 the destructor of an abstract class.
4700 (mark_used): Update comment for older function-name change.
4702 2019-01-11 Paolo Carlini <paolo.carlini@oracle.com>
4704 * decl.c (start_decl): Improve error location.
4705 (grokdeclarator): Likewise, improve two locations.
4707 2019-01-09 Sandra Loosemore <sandra@codesourcery.com>
4711 * cp-tree.h: Mechanically replace "can not" with "cannot".
4712 * parser.c: Likewise.
4715 2019-01-08 Paolo Carlini <paolo.carlini@oracle.com>
4717 * decl.c (grok_reference_init): Improve error location.
4718 (grokdeclarator): Likewise, improve two locations.
4720 2019-01-08 Marek Polacek <polacek@redhat.com>
4722 PR c++/88538 - braced-init-list in template-argument-list.
4723 * parser.c (cp_parser_template_argument): Handle braced-init-list when
4726 PR c++/88548 - this accepted in static member functions.
4727 * parser.c (cp_debug_parser): Adjust printing of
4728 local_variables_forbidden_p.
4729 (cp_parser_new): Set local_variables_forbidden_p to 0 rather than false.
4730 (cp_parser_primary_expression): When checking
4731 local_variables_forbidden_p, use THIS_FORBIDDEN or
4732 LOCAL_VARS_FORBIDDEN.
4733 (cp_parser_lambda_body): Update the type of
4734 local_variables_forbidden_p. Set it to 0 rather than false.
4735 (cp_parser_condition): Adjust call to cp_parser_declarator.
4736 (cp_parser_explicit_instantiation): Likewise.
4737 (cp_parser_init_declarator): Likewise.
4738 (cp_parser_declarator): New parameter. Use it.
4739 (cp_parser_direct_declarator): New parameter. Use it to set
4740 local_variables_forbidden_p. Adjust call to cp_parser_declarator.
4741 (cp_parser_type_id_1): Adjust call to cp_parser_declarator.
4742 (cp_parser_parameter_declaration): Likewise.
4743 (cp_parser_default_argument): Update the type of
4744 local_variables_forbidden_p. Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
4746 (cp_parser_member_declaration): Tell cp_parser_declarator if we saw
4747 'static' or 'friend'.
4748 (cp_parser_exception_declaration): Adjust call to cp_parser_declarator.
4749 (cp_parser_late_parsing_default_args): Update the type of
4750 local_variables_forbidden_p. Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
4752 (cp_parser_cache_defarg): Adjust call to cp_parser_declarator.
4753 (cp_parser_objc_class_ivars): Likewise.
4754 (cp_parser_objc_struct_declaration): Likewise.
4755 (cp_parser_omp_for_loop_init): Likewise.
4756 * parser.h (cp_parser): Change the type of local_variables_forbidden_p
4758 (LOCAL_VARS_FORBIDDEN, LOCAL_VARS_AND_THIS_FORBIDDEN, THIS_FORBIDDEN):
4761 2019-01-08 Paolo Carlini <paolo.carlini@oracle.com>
4763 * decl.c (start_decl): Improve permerror location.
4765 2019-01-08 Jonathan Wakely <jwakely@redhat.com>
4766 Jakub Jelinek <jakub@redhat.com>
4769 * decl.c (finish_function): For -Wreturn-type don't add a return *this;
4770 fixit hint if current_class_ref is NULL. Use a single if instead of
4773 2019-01-07 Paolo Carlini <paolo.carlini@oracle.com>
4775 * decl.c (start_decl): Improve two error_at locations.
4776 (expand_static_init): Likewise.
4778 2019-01-07 Marek Polacek <polacek@redhat.com>
4780 PR c++/88741 - wrong error with initializer-string.
4781 * decl.c (cp_complete_array_type): Strip any location wrappers.
4783 2019-01-07 Bernd Edlinger <bernd.edlinger@hotmail.de>
4789 * cp-tree.h (LOOKUP_ALLOW_FLEXARRAY_INIT): New flag value.
4790 * typeck2.c (digest_init_r): Raise an error for non-static
4791 initialization of a flexible array member.
4792 (process_init_constructor, massage_init_elt,
4793 process_init_constructor_array, process_init_constructor_record,
4794 process_init_constructor_union, process_init_constructor): Add the
4795 flags parameter and pass it thru.
4796 (store_init_value): Pass LOOKUP_ALLOW_FLEXARRAY_INIT parameter to
4797 digest_init_flags for static decls.
4799 2019-01-07 Jakub Jelinek <jakub@redhat.com>
4802 * cp-tree.h (cp_build_vec_convert): Declare.
4803 * parser.c (cp_parser_postfix_expression): Parse
4804 __builtin_convertvector.
4805 * constexpr.c: Include fold-const-call.h.
4806 (cxx_eval_internal_function): Handle IFN_VEC_CONVERT.
4807 (potential_constant_expression_1): Likewise.
4808 * semantics.c (cp_build_vec_convert): New function.
4809 * pt.c (tsubst_copy_and_build): Handle CALL_EXPR to
4812 2019-01-03 Jakub Jelinek <jakub@redhat.com>
4815 * decl.c (builtin_function_1): Return result of pushdecl_top_level
4816 or pushdecl rather than decl.
4818 2019-01-03 Paolo Carlini <paolo.carlini@oracle.com>
4820 * tree.c (handle_nodiscard_attribute): Improve warning location.
4822 2019-01-02 Marek Polacek <polacek@redhat.com>
4824 PR c++/88612 - ICE with -Waddress-of-packed-member.
4825 * call.c (convert_for_arg_passing): Only give warnings with tf_warning.
4826 * typeck.c (convert_for_assignment): Likewise.
4828 PR c++/88631 - CTAD failing for value-initialization.
4829 * typeck2.c (build_functional_cast): Try deducing the template
4830 arguments even if there are no arguments to deduce from.
4832 2019-01-01 Jakub Jelinek <jakub@redhat.com>
4834 Update copyright years.
4836 Copyright (C) 2019 Free Software Foundation, Inc.
4838 Copying and distribution of this file, with or without modification,
4839 are permitted in any medium without royalty provided the copyright
4840 notice and this notice are preserved.