1 2020-09-10 Nathan Sidwell <nathan@acm.org>
3 * cp-tree.h (TINFO_VAR_DECLARED_CONSTINIT): Replace with ...
4 (DECL_DECLARED_CONSTINIT_P): ... this.
5 * decl.c (start_decl): No need to retrofit_lang_decl for constinit
7 (cp_finish_decl): Use DECL_DECLARED_CONSTINIT_P.
8 * pt.c (tsubst_decl): No need to handle constinit flag
10 (tsubst_expr): Or here.
12 2020-09-10 Nathan Sidwell <nathan@acm.org>
14 * cp-tree.h (DECL_LOCAL_FUNCTION_P): Rename to ...
15 (DECL_LOCAL_DECL_P): ... here. Accept both fns and vars.
16 * decl.c (start_decl): Set DECL_LOCAL_DECL_P for local externs.
17 (omp_declare_variant_finalize_one): Use DECL_LOCAL_DECL_P.
18 (local_variable_p): Simplify.
19 * name-lookup.c (set_decl_context_in_fn): Assert DECL_LOCAL_DECL_P
20 is as expected. Simplify.
21 (do_pushdecl): Don't set decl_context_in_fn for friends.
22 (is_local_extern): Simplify.
23 * call.c (equal_functions): Use DECL_LOCAL_DECL_P.
24 * parser.c (cp_parser_postfix_expression): Likewise.
25 (cp_parser_omp_declare_reduction): Likewise.
26 * pt.c (check_default_tmpl_args): Likewise.
27 (tsubst_expr): Assert nested reduction function is local.
28 (type_dependent_expression_p): Use DECL_LOCAL_DECL_P.
29 * semantics.c (finish_call_expr): Likewise.
31 2020-09-09 Marek Polacek <polacek@redhat.com>
34 * decl.c (reshape_init): If we're initializing a char array from
35 a string-literal that is enclosed in braces, unwrap it.
36 * init.c (build_new_1): Don't handle string-initializers here.
37 (build_new): Handle new-expression with paren-init when the
38 array bound is known. Always pass string constants to build_new_1
39 enclosed in braces. Don't handle string-initializers in any
42 2020-09-09 Marek Polacek <polacek@redhat.com>
45 * decl.c (reshape_init_r): When initializing an aggregate member
46 with an initializer from an initializer-list, also consider
49 2020-09-09 Nathan Sidwell <nathan@acm.org>
51 * parser.c (cp_parser_omp_declare_reduction): Refactor to avoid
52 code duplication. Update DECL_TI_TEMPLATE's context.
53 * pt.c (tsubst_expr): For OMP reduction function, set context to
54 global_namespace before pushing.
55 (tsubst_omp_udr): Assert current_function_decl, add comment about
58 2020-09-09 Patrick Palka <ppalka@redhat.com>
61 * class.c (resolve_address_of_overloaded_function): Check
62 constraints_satisfied_p and perform return-type deduction via
63 maybe_instantiate_decl when considering non-template functions
65 * cp-tree.h (maybe_instantiate_decl): Declare.
66 * decl2.c (maybe_instantiate_decl): Remove static.
68 2020-09-04 Jason Merrill <jason@redhat.com>
70 * expr.c (mark_use): Use iloc_sentinel.
72 2020-09-03 Jakub Jelinek <jakub@redhat.com>
75 * constexpr.c (fundef_copies_table): Change type from
76 hash_map<tree, tree> * to decl_tree_map *.
78 2020-09-03 Marek Polacek <polacek@redhat.com>
81 * cp-tree.h (do_aggregate_paren_init): Declare.
82 * decl.c (do_aggregate_paren_init): New.
83 (grok_reference_init): Use it.
84 (check_initializer): Likewise.
85 * init.c (perform_member_init): Handle initializing an array from
86 a ()-list. Use do_aggregate_paren_init.
88 2020-09-03 Jakub Jelinek <jakub@redhat.com>
91 * constexpr.c (cxx_eval_outermost_constant_expr): Temporarily disable
92 flag_rounding_math during manifestly constant evaluation.
94 2020-09-01 Marek Polacek <polacek@redhat.com>
97 * init.c (build_new_1): Call reshape_init.
99 2020-09-01 Jakub Jelinek <jakub@redhat.com>
102 * semantics.c (handle_omp_array_sections_1): Test
103 DECL_ARRAY_PARAMETER_P only on PARM_DECLs.
105 2020-08-31 Marek Polacek <polacek@redhat.com>
106 Jason Merrill <jason@redhat.com>
109 * call.c (build_new_method_call_1): Use build_constructor_from_vec
110 instead of build_tree_list_vec + build_constructor_from_list.
111 * init.c (build_new_1): Handle new char[]{"foo"}. Use
112 build_constructor_from_vec instead of build_tree_list_vec +
113 build_constructor_from_list.
114 (build_new): Deduce the array size in new-expression if not
115 present. Handle ()-init. Handle initializing an array from
117 * parser.c (cp_parser_new_type_id): Leave [] alone.
118 (cp_parser_direct_new_declarator): Allow [].
119 * pt.c (type_dependent_expression_p): In a NEW_EXPR, consider
120 array types whose dimension has to be deduced type-dependent.
122 2020-08-27 Martin Liska <mliska@suse.cz>
124 * class.c (build_vtbl_initializer): Set exact argument of a vector
125 growth function to true.
126 * constraint.cc (get_mapped_args): Likewise.
127 * decl.c (cp_maybe_mangle_decomp): Likewise.
128 (cp_finish_decomp): Likewise.
129 * parser.c (cp_parser_omp_for_loop): Likewise.
130 * pt.c (canonical_type_parameter): Likewise.
131 * rtti.c (get_pseudo_ti_init): Likewise.
133 2020-08-26 Nathan Sidwell <nathan@acm.org>
135 * decl.c (poplevel): A local-binding tree list holds the name in
137 * name-lookup.c (update_local_overload): Add id to TREE_PURPOSE.
138 (lookup_name_1): Deal with local-binding error_mark_node marker.
139 (op_unqualified_lookup): Return error_mark_node for 'nothing
140 found'. Retain global binding, check class binding here.
141 (maybe_save_operator_binding): Reimplement to always cache a
143 (push_operator_bindings): Deal with 'ignore' marker.
145 2020-08-25 Tobias Burnus <tobias@codesourcery.com>
148 * semantics.c (handle_omp_array_sections_1): Talk about
149 array function parameter in the error message.
151 2020-08-25 Jakub Jelinek <jakub@redhat.com>
154 * cp-tree.h (build_trivial_dtor_call): Add bool argument defaulted
156 * call.c (build_trivial_dtor_call): Add NO_PTR_DEREF argument. If
157 instance is a pointer and NO_PTR_DEREF is true, clobber the pointer
158 rather than what it points to.
159 * semantics.c (finish_call_expr): Call build_trivial_dtor_call with
160 true as NO_PTR_DEREF.
162 2020-08-25 Jason Merrill <jason@redhat.com>
165 * optimize.c (populate_clone_array): Revert PR70462 change.
166 (maybe_clone_body): Likewise.
168 2020-08-24 Nathan Sidwell <nathan@acm.org>
170 * ptree.c (debug_overload): New.
172 2020-08-19 Jason Merrill <jason@redhat.com>
175 * cp-tree.h (push_tinst_level, push_tinst_level_loc): Declare.
176 * constraint.cc (satisfy_declaration_constraints):
177 Use add_outermost_template_args and push_tinst_level.
178 * pt.c (add_outermost_template_args): Handle getting
179 a TEMPLATE_DECL as the first argument.
180 (push_tinst_level, push_tinst_level_loc): No longer static.
181 (fn_type_unification): Check satisfaction before non-dependent
184 2020-08-18 Nathan Sidwell <nathan@acm.org>
186 * cp-tree.h (SET_TYPE_TEMPLTE_INFO): Do not deal with ALIAS templates.
187 * pt.c (lookup_template_class_1): Special-case alias template
188 template_info setting.
190 2020-08-18 Jason Merrill <jason@redhat.com>
193 * pt.c (tsubst_aggr_type): Rewrite in C++17, too.
194 (maybe_dependent_member_ref): Likewise.
195 (build_deduction_guide): Re-substitute template parms.
196 * cp-tree.h (struct push_nested_class_guard): New.
197 * constraint.cc (get_normalized_constraints_from_decl): Use it.
199 2020-08-18 Jason Merrill <jason@redhat.com>
202 * pt.c (maybe_dependent_member_ref): New.
203 (tsubst_copy) [CONST_DECL]: Use it.
204 [VAR_DECL]: Likewise.
205 (tsubst_aggr_type): Handle nested type.
207 2020-08-18 Nathan Sidwell <nathan@acm.org>
209 * name-lookup.c (qualify_lookup): Drop lambda checking here.
210 Reorder namespace & type checking.
211 (lookup_name_1): Do hidden lambda checking here.
213 2020-08-14 Nathan Sidwell <nathan@acm.org>
215 * name-lookup.h (lookup_name_real, lookup_name_nonclass): Rename
217 (lookup_name): ... these new overloads.
218 * name-lookup.c (identifier_type_value_1): Rename lookup_name_real
220 (lookup_name_real_1): Rename to ...
221 (lookup_name_1): ... here.
222 (lookup_name_real): Rename to ...
223 (lookup_name): ... here. Rename lookup_name_real_1 call.
224 (lookup_name_nonclass): Delete.
225 * call.c (build_operator_new_call): Rename lookup_name_real call.
226 (add_operator_candidates): Likewise.
227 (build_op_delete_call): Rename lookup_name_nonclass call.
228 * parser.c (cp_parser_lookup_name): Likewise.
229 * pt.c (tsubst_friend_class, lookup_init_capture_pack): Likewise.
230 (tsubst_expr): Likewise.
231 * semantics.c (capture_decltype): Likewise.
233 2020-08-14 Nathan Sidwell <nathan@acm.org>
235 * cp-tree.h (LOOKUP_HIDDEN): Delete.
236 (LOOKUP_PREFER_RVALUE): Adjust initializer.
237 * name-lookup.h (enum class LOOK_want): Add HIDDEN_FRIEND and
239 (lookup_name_real): Drop flags parm.
240 (lookup_qualified_name): Drop find_hidden parm.
241 * name-lookup.c (class name_lookup): Drop hidden field, adjust
243 (name_lookup::add_overload): Check want for hiddenness.
244 (name_lookup::process_binding): Likewise.
245 (name_lookup::search_unqualified): Likewise.
246 (identifier_type_value_1): Adjust lookup_name_real call.
247 (set_decl_namespace): Adjust name_lookup ctor.
248 (qualify_lookup): Drop flags parm, use want for hiddenness.
249 (lookup_qualified_name): Drop find_hidden parm.
250 (lookup_name_real_1): Drop flags parm, adjust qualify_lookup
252 (lookup_name_real): Drop flags parm.
253 (lookup_name_nonclass, lookup_name): Adjust lookup_name_real
255 (lookup_type_scope_1): Adjust qualify_lookup calls.
256 * call.c (build_operator_new_call): Adjust lookup_name_real call.
257 (add_operator_candidates): Likewise.
258 * coroutines.cc (morph_fn_to_coro): Adjust lookup_qualified_name
260 * parser.c (cp_parser_lookup_name): Adjust lookup_name_real calls.
261 * pt.c (check_explicit_specialization): Adjust
262 lookup_qualified_name call.
263 (deduction_guides_for): Likewise.
264 (tsubst_friend_class): Adjust lookup_name_real call.
265 (lookup_init_capture_pack): Likewise.
266 (tsubst_expr): Likewise, don't look in namespaces.
267 * semantics.c (capture_decltype): Adjust lookup_name_real. Don't
270 2020-08-14 Jason Merrill <jason@redhat.com>
274 * cp-tree.h (unsafe_return_slot_p): Declare.
275 * call.c (is_base_field_ref): Rename to unsafe_return_slot_p.
276 (build_over_call): Check unsafe_return_slot_p.
277 (build_special_member_call): Likewise.
278 * init.c (expand_default_init): Likewise.
279 * typeck2.c (split_nonconstant_init_1): Likewise.
281 2020-08-14 Nathan Sidwell <nathan@acm.org>
283 * cp-tree.h (LOOKUP_PREFER_TYPES, LOOKUP_PREFER_NAMESPACES)
284 (LOOKUP_NAMESPACES_ONLY, LOOKUP_TYPES_ONLY)
285 (LOOKUP_QUALIFIERS_ONL): Delete.
286 (LOOKUP_HIDDEN): Adjust.
287 * name-lookup.h (enum class LOOK_want): New.
288 (operator|, operator&): Overloads for it.
289 (lookup_name_real): Replace prefer_type & namespaces_only with
291 (lookup_qualified_name): Replace prefer_type with LOOK_want.
292 (lookup_name_prefer_type): Replace with ...
293 (lookup_name): ... this. New overload with LOOK_want parm.
294 * name-lookup.c (struct name_lookup): Replace flags with want and
295 hidden fields. Adjust constructors.
296 (name_lookyp::add_overload): Correct hidden stripping test. Update
297 for new LOOK_want type.
298 (name_lookup::process_binding): Likewise.
299 (name_lookup::search_unqualified): Use hidden flag.
300 (identifier_type_value_1): Adjust lookup_name_real call.
301 (set_decl_namespace): Adjust name_lookup ctor.
302 (lookup_flags): Delete.
303 (qualify_lookup): Add LOOK_want parm, adjust.
304 (lookup_qualified_name): Replace prefer_type parm with LOOK_want.
305 (lookup_name_real_1): Replace prefer_type and namespaces_only with
307 (lookup_name_real): Likewise.
308 (lookup_name_nonclass, lookup_name): Adjust lookup_name_real call.
309 (lookup_name_prefer_type): Rename to ...
310 (lookup_name): ... here. New overload with LOOK_want parm.
311 (lookup_type_scope_1): Adjust qualify_lookup calls.
312 * call.c (build_operator_new_call)
313 (add_operator_candidates): Adjust lookup_name_real calls.
314 * coroutines.cc (find_coro_traits_template_decl)
315 (find_coro_handle_template_decl, morph_fn_to_coro): Adjust
316 lookup_qualified_name calls.
317 * cp-objcp-common.c (identifier_global_tag): Likewise.
318 * decl.c (get_tuple_size, get_tuple_decomp_init): Likewise.
319 (lookup_and_check_tag): Use lookup_name overload.
320 * parser.c (cp_parser_userdef_numeric_literal): Adjust
321 lookup_qualified_name call.
322 (prefer_arg_type): Drop template_mem_access parm, return LOOK_want
324 (cp_parser_lookup_name): Adjust lookup_member, lookup_name_real
326 * pt.c (check_explicit_specialization): Adjust lookup_qualified_name
328 (tsubst_copy_and_build, tsubst_qualified_name): Likewise
329 (deduction_guides_for): Likewise.
330 (tsubst_friend_class): Adjust lookup_name_real call.
331 (lookup_init_capture, tsubst_expr): Likewise.
332 * rtti.c (emit_support_tinfos): Adjust lookup_qualified_name call.
333 * semantics.c (omp_reduction_lookup): Likewise.
334 (capture_decltype): Adjust lookup_name_real call.
336 2020-08-13 Nathan Sidwell <nathan@acm.org>
338 * name-lookup.h (enum class LOOK_where): New.
339 (operator|, operator&): Overloads for it.
340 (lookup_name_real): Replace NONCLASS & BLOCK_P parms with WHERE.
341 * name-lookup.c (identifier_type_value_w): Adjust
342 lookup_name_real call.
343 (lookup_name_real_1): Replace NONCLASS and BLOCK_P parameters
344 with WHERE bitmask. Don't search namespaces if not asked to.
345 (lookup_name_real): Adjust lookup_name_real_1 call.
346 (lookup_name_nonclass, lookup_name)
347 (lookup_name_prefer_type): Likewise.
348 * call.c (build_operator_new_call)
349 (add_operator_candidates): Adjust lookup_name_real calls.
350 * parser.c (cp_parser_lookup_name): Likewise.
351 * pt.c (tsubst_friend_class, lookup_init_capture_pack)
352 (tsubst_expr): Likewise.
353 * semantics.c (capture_decltype): Likewise.
355 2020-08-13 Marek Polacek <polacek@redhat.com>
358 * typeck.c (build_static_cast_1): Implement P1975R0 by allowing
359 static_cast to aggregate type.
361 2020-08-10 Jakub Jelinek <jakub@redhat.com>
364 * constexpr.c (cxx_eval_binary_expression): For SPACESHIP_EXPR, tail
365 call cxx_eval_constant_expression after genericize_spaceship to avoid
366 undesirable further VERIFY_CONSTANT.
368 2020-08-10 Patrick Palka <ppalka@redhat.com>
370 * pt.c (resolve_overloaded_unification): Drop functions with
371 unsatisfied constraints.
372 (resolve_nondeduced_context): Likewise.
374 2020-08-05 Patrick Palka <ppalka@redhat.com>
375 Jason Merrill <jason@redhat.com>
378 * constexpr.c (cxx_eval_vec_init_1): Truncate ctx->ctor and
379 then clear CONSTRUCTOR_NO_CLEARING on each appended element
380 initializer if we're initializing a previously zero-initialized
383 2020-08-04 Marek Polacek <polacek@redhat.com>
386 * parser.c (cp_parser_elaborated_type_specifier): Allow
387 'template' following ::.
389 2020-08-04 Nathan Sidwell <nathan@acm.org>
391 * parser.c (cp_parser_explicit_specialization): Refactor
392 to avoid leak of num_template_parameter_lists value.
394 2020-08-04 Patrick Palka <ppalka@redhat.com>
397 * init.c (sort_mem_initializers): Preserve TREE_TYPE of the
398 member initializer list node.
399 (emit_mem_initializers): Set input_location when performing each
400 member initialization.
401 * parser.c (cp_parser_mem_initializer): Attach the source
402 location of this initializer to a dummy EMPTY_CLASS_EXPR
403 within the TREE_TYPE of the list node.
404 * pt.c (tsubst_initializer_list): Preserve TREE_TYPE of the
405 member initializer list node.
407 2020-08-03 Marek Polacek <polacek@redhat.com>
409 * cp-tree.h (after_nsdmi_defaulted_late_checks): Remove.
411 2020-08-03 Marek Polacek <polacek@redhat.com>
415 * pt.c (check_default_tmpl_args): Also consider variable
418 2020-07-31 Jakub Jelinek <jakub@redhat.com>
421 * decl.c (finish_function): In constexpr functions use for C++14 and
422 later error instead of warning if no return statement is present and
423 diagnose it regardless of warn_return_type. Move the warn_return_type
424 diagnostics earlier in the function.
426 2020-07-31 Martin Sebor <msebor@redhat.com>
429 * class.c (build_base_path): Set no-warning bit on the synthesized
430 conditional expression in static_cast.
432 2020-07-31 Richard Biener <rguenther@suse.de>
435 * cp-objcp-common.h (LANG_HOOKS_FINALIZE_EARLY_DEBUG):
436 Define to c_common_finalize_early_debug.
438 2020-07-31 Patrick Palka <ppalka@redhat.com>
441 * constexpr.c (cxx_eval_constant_expression) <case CONST_DECL>:
442 Pass false to decl_constant_value and decl_really_constant_value
443 so that they don't unshare their result.
444 * cp-tree.h (decl_constant_value): New declaration with an added
446 (decl_really_constant_value): Add bool parameter defaulting to
447 true to existing declaration.
448 * init.c (constant_value_1): Add bool parameter which controls
449 whether to unshare the initializer before returning. Call
450 unshare_expr at most once.
451 (scalar_constant_value): Pass true to constant_value_1's new
453 (decl_really_constant_value): Add bool parameter and forward it
455 (decl_constant_value): Likewise, but instead define a new
456 overload with an added bool parameter.
458 2020-07-30 Patrick Palka <ppalka@redhat.com>
461 * pt.c (resolve_overloaded_unification): If the function
462 template specialization has a placeholder return type,
463 then instantiate it before attempting unification.
465 2020-07-30 Patrick Palka <ppalka@redhat.com>
468 * pt.c (alias_ctad_tweaks): Call remove_constraints before
469 calling set_constraints.
471 2020-07-30 Patrick Palka <ppalka@redhat.com>
474 * pt.c (reduce_template_parm_level): Propagate DECL_VIRTUAL_P
475 from the original TEMPLATE_PARM_DECL to the new lowered one.
477 2020-07-30 Patrick Palka <ppalka@redhat.com>
480 * constraint.cc (constraints_satisfied_p): Return true if
482 * pt.c (do_type_instantiation): Update a paragraph taken from
483 [temp.explicit] to reflect the latest specification. Don't
484 instantiate a member with unsatisfied constraints.
486 2020-07-29 Jason Merrill <jason@redhat.com>
489 * cp-tree.h (IMPLICIT_RVALUE_P): New.
490 (enum cp_lvalue_kind_flags): Add clk_implicit_rval.
491 (implicit_rvalue_p, set_implicit_rvalue_p): New.
492 * call.c (reference_binding): Check clk_implicit_rval.
493 (build_over_call): Adjust C++20 implicit move.
494 * coroutines.cc (finish_co_return_stmt): Simplify implicit move.
495 * except.c (build_throw): Adjust C++20 implicit move.
496 * pt.c (tsubst_copy_and_build) [STATIC_CAST_EXPR]: Propagate
498 * tree.c (lvalue_kind): Set clk_implicit_rval.
499 * typeck.c (treat_lvalue_as_rvalue_p): Overhaul.
500 (maybe_warn_pessimizing_move): Adjust.
501 (check_return_expr): Adjust C++20 implicit move.
503 2020-07-29 Jason Merrill <jason@redhat.com>
506 * call.c (build_over_call): Don't call a const ref
507 overload for implicit move.
509 2020-07-28 Nathan Sidwell <nathan@acm.org>
511 * cp-gimplify.c (cp_genericize_r): Set IMPORTED_DECL's context.
512 * cp-objcp-common.c (cp_pushdecl): Set decl's context.
513 * decl.c (grokfndecl): Make DECL_CONTEXT setting clearer.
515 2020-07-28 Nathan Sidwell <nathan@acm.org>
517 * class.c (fixup_type_variants): Copy TYPE_SIZE and
519 (finish_struct): Call it.
521 2020-07-28 Nathan Sidwell <nathan@acm.org>
523 * ptree.c (cxx_print_decl): Better indentation.
525 2020-07-28 Jakub Jelinek <jakub@redhat.com>
526 Mark Wielaard <mark@klomp.org>
529 * parser.c (cp_lexer_safe_previous_token): Don't call
530 cp_lexer_previous_token, instead inline it by hand and return NULL
531 instead of failing assertion if all previous tokens until the first
533 (cp_parser_error_1): Optimize - only call cp_lexer_safe_previous_token
534 if token->type is CPP_NAME. Use cp_lexer_safe_previous_token instead
535 of cp_lexer_previous_token for the missing_token_desc != RT_NONE
538 2020-07-27 Nathan Sidwell <nathan@acm.org>
540 * cp-tree.h (enum cp_tree_index): Add CPTI_AS_BASE_IDENTIFIER.
541 (as_base_identifier): Define.
542 * decl.c (initialize_predifined_identifiers): Initialize as_base
544 * class.c (layout_class_type): Name the as-base type. Zap
545 NSDMI its fields may have.
547 2020-07-22 Nathan Sidwell <nathan@acm.org>
549 * class.c (maybe_add_class_template_decl_list): Don't add CONST_DECLs.
551 2020-07-22 Nathan Sidwell <nathan@acm.org>
553 * typeck.c (structural_comptypes): [DECLTYPE_TYPE] break
555 [UNDERLYING_TYPE]: Use an if.
558 2020-07-22 Nathan Sidwell <nathan@acm.org>
560 * decl.c (decls_match): Move variables into scopes
562 (duplicate_decls): Use STRIP_TEMPLATE.
563 (build_typename_type): Move var decls to their assignments.
564 (begin_function_body): Likewise.
565 * decl2.c (get_guard): Likewise.
566 (mark_used): Use true for truthiness.
567 * error.c (dump_aggr_type): Hold the decl in a var called
570 2020-07-22 Nathan Sidwell <nathan@acm.org>
572 * cp-tree.h (struct tree_lambda_expr): Shrink
573 default_capture_mode & discriminator.
575 2020-07-22 Nathan Sidwell <nathan@acm.org>
577 * mangle.c (decl_is_template_id): Rename to ...
578 (maybe_template_info): ... here. Return the template info,
579 rather than use a pointer. Adjust all callers.
580 (find_substitution): Use template_args_equal, rather than
583 2020-07-22 Tobias Burnus <tobias@codesourcery.com>
585 * parser.c (cp_parser_omp_clause_hint): Require nonnegative hint.
586 (cp_parser_omp_critical): Permit hint(0) clause without named critical.
587 * pt.c (tsubst_expr): Re-check the latter for templates.
589 2020-07-21 Sunil K Pandey <skpgkp2@gmail.com>
592 * decl.c (cp_finish_decl): Call target hook
593 lower_local_decl_alignment to lower local decl alignment.
595 2020-07-21 Nathan Sidwell <nathan@acm.org>
597 * parser.c (cp_lexer_consume_token): Drop PRAGMA_EOL assert.
598 (cp_parser_skip_to_closing_parenthesis_1): Only pass start token
599 to pragma skipper if recovering.
600 (cp_parser_skip_to_pragma_eol): Only purge and change pragma
601 state when recovering.
603 2020-07-20 Jason Merrill <jason@redhat.com>
605 * pt.c (type_dependent_expression_p): A pseudo-dtor can be
607 * semantics.c (finish_call_expr): Use build_trivial_dtor_call for
609 (finish_pseudo_destructor_expr): Leave type NULL for dependent arg.
611 2020-07-20 Jason Merrill <jason@redhat.com>
613 * mangle.c (write_base_ref): New.
614 (write_expression): Use it for base field COMPONENT_REFs.
615 * pt.c (invalid_tparm_referent_p): Canonicalize the type
616 of array offsets. Allow subobjects.
618 2020-07-20 Jason Merrill <jason@redhat.com>
620 * pt.c (collect_ctor_idx_types): Add 'const' when deducing from
623 2020-07-17 Marek Polacek <polacek@redhat.com>
626 * decl.c (grokdeclarator): Detect cv-qual decltype(auto).
627 * pt.c (do_auto_deduction): Likewise.
629 2020-07-16 Iain Sandoe <iain@sandoe.co.uk>
636 * coroutines.cc (struct coro_ret_data): Delete.
637 (coro_maybe_expand_co_return): Delete.
638 (co_return_expander): Delete.
639 (expand_co_returns): Delete.
640 (co_await_find_in_subtree): Remove unused name.
641 (build_actor_fn): Remove unused parm, remove handling
642 for co_return expansion.
643 (register_await_info): Demote duplicate info message to a
645 (coro_make_frame_entry): Move closer to use site.
646 (struct susp_frame_data): Add fields for final suspend label
647 and a flag to indicate await expressions with initializers.
648 (captures_temporary): Delete.
649 (register_awaits): Remove unused code, update comments.
650 (find_any_await): New.
651 (tmp_target_expr_p): New.
652 (struct interesting): New.
653 (find_interesting_subtree): New.
654 (struct var_nest_node): New.
655 (flatten_await_stmt): New.
656 (handle_nested_conditionals): New.
657 (process_conditional): New.
658 (replace_statement_captures): Rename to...
659 (maybe_promote_temps): ... this.
660 (maybe_promote_captured_temps): Delete.
661 (analyze_expression_awaits): Check for await expressions with
662 initializers. Simplify handling for truth-and/or-if.
663 (expand_one_truth_if): Simplify (map cases that need expansion
665 (await_statement_walker): Handle CO_RETURN_EXPR. Simplify the
666 handling for truth-and/or-if expressions.
667 (register_local_var_uses): Ensure that we create names in the
668 implementation namespace.
669 (morph_fn_to_coro): Add final suspend label to suspend frame
670 callback data and remove it from the build_actor_fn call.
672 2020-07-16 Marek Polacek <polacek@redhat.com>
674 * call.c (convert_like): Remove macro and introduce a new
676 (convert_like_with_context): Likewise.
677 (convert_like_real): Rename to convert_like.
678 (convert_like_real_1): Rename to convert_like_internal. Call
679 convert_like instead of convert_like_real therein.
680 (perform_direct_initialization_if_possible): Call convert_like
681 instead of convert_like_real.
683 2020-07-16 Iain Sandoe <iain@sandoe.co.uk>
685 * coroutines.cc: Correct some spelling errors
688 2020-07-15 Nathan Sidwell <nathan@acm.org>
690 * parser.c (cp_parser_declaration): Avoid copying tokens.
691 (cp_parser_block_declaration): RAII token pointer.
693 2020-07-15 Nathan Sidwell <nathan@acm.org>
695 * parser.c (cp_parser_skip_to_closing_parenthesis_1): Deal with
696 meeting a deferred pragma.
697 (cp_parser_skip_to_end_of_statement): Likewise.
698 (cp_parser_skip_to_end_of_block_or_statement): Likewise.
699 (cp_parser_skip_to_pragma_eol): We should never meet EOF.
700 (cp_parser_omp_declare_simd): Likewise.
701 (cp_parser_omp_declare_reduction, cp_parser_oacc_routine)
702 (pragma_lex): Likewise.
704 2020-07-14 Marek Polacek <polacek@redhat.com>
709 * call.c (convert_like_real_1): Renamed from convert_like_real.
710 (convert_like_real): New wrapper for convert_like_real_1.
712 2020-07-14 Nathan Sidwell <nathan@acm.org>
714 * parser.c (cp_lexer_alloc): Do not deal with PCH here.
715 (cp_lexer_new_main): Deal with PCH here. Store the tokens directly
717 (cp_lexer_new_from_tokens): Assert last token isn't purged either.
718 (cp_lexer_get_preprocessor_token): Change first arg to flags, adjust.
719 (cp_parser_new): Pass the lexer in, don't create it here.
720 (cp_parser_translation_unit): Initialize access checks here.
721 (cp_parser_initial_pragma): First token is provided by caller,
722 don't deal with PCH stopping here. Adjust error message.
723 (c_parse_file): Adjust, change error message to avoid C++20 module
726 2020-07-14 Nathan Sidwell <nathan@acm.org>
728 * ptree.c (cxx_print_type): Add TYPEOF_TYPE and BASES.
730 2020-07-14 Nathan Sidwell <nathan@acm.org>
732 * class.c (build_base_field_1): Cache CLASSTYPE_AS_BASE.
733 (build_self_reference): Rename value -> decl.
734 (dump_class_hierarchy_1): Cache CLASSTYPE_AS_BASE.
736 2020-07-14 Marek Polacek <polacek@redhat.com>
739 * decl.c (grokdeclarator) <case cdk_function>: Check also
740 pointers/references/... to functions.
742 2020-07-14 Nathan Sidwell <nathan@acm.org>
744 * cp-tree.h: Correct some tree lang flag comments,
745 reformat some structure definitions. Note some structure
746 sizes. Clarify some comments.
747 (yyungetc): Delete. Not been a thing for some time.
748 * class.c (copy_fndecl_with_name): Comment.
749 (check_bases_and_members): Unnecessary {}.
750 (layout_class_type): Comment.
751 * cp-tree.def (UNBOUND_CLASS_TEMPLATE): Adjust comment.
752 * decl.c: Fix some formatting & whitespace issues.
753 (function_requirements_equivalent_p): Note why
754 substitutions are needed.
755 * decl2.c (no_linkage_error): Note that heroics about
756 'typedef struct { ... };' are no longer needed.
757 * method.c: Whitespace.
758 * name-lookup.c: Whitespace.
759 (add_decl_to_level): Reformat a line.
760 (print_binding_stack): Mark as DEBUG_FUNCTION.
761 (has_using_namespace_std_directive_p): Delete comment.
763 * ptree.c: Whitespace.
764 * rtti.c: Whitespace & comment.
766 * typeck.c (structural_comptypes): Add comment.
768 2020-07-13 Nathan Sidwell <nathan@acm.org>
770 * Make-lang.in (c++.disclean): Likewise.
772 2020-07-13 Marek Polacek <polacek@redhat.com>
775 * parser.c (cp_parser_enum_specifier): Commit to tentative parse
776 after we've seen an opening brace.
778 2020-07-10 Jason Merrill <jason@redhat.com>
780 * tree.c (structural_type_p): Allow unions.
781 * mangle.c (write_expression): Express unions with a designator.
783 2020-07-10 Jason Merrill <jason@redhat.com>
785 * pt.c (convert_nontype_argument): Handle REAL_TYPE.
786 (invalid_nontype_parm_type_p): Allow all structural types.
787 * tree.c (structural_type_p): Use SCALAR_TYPE_P.
789 2020-07-10 Jason Merrill <jason@redhat.com>
794 * class.c (check_field_decls): An array of empty classes is not an
796 (layout_empty_base_or_field): Handle explicit alignment.
799 2020-07-09 Julian Brown <julian@codesourcery.com>
800 Thomas Schwinge <thomas@codesourcery.com>
803 * semantics.c (finish_omp_clauses): Likewise.
805 2020-07-09 Patrick Palka <ppalka@redhat.com>
808 * constexpr.c (potential_constant_expression_1) <case PARM_DECL>:
809 Restore dependent_type_p check that guarded the call to
810 is_really_empty_class.
812 2020-07-08 Patrick Palka <ppalka@redhat.com>
815 * constexpr.c (potential_constant_expression_1) <case PARM_DECL>:
816 When processing_template_decl, check COMPLETE_TYPE_P before
817 calling is_really_empty_class. Don't check dependent_type_p.
819 2020-07-08 Marek Polacek <polacek@redhat.com>
822 * parser.c (cp_parser_decltype): Print error about using decltype(auto)
823 in C++11. Check that the token following "auto" is ")".
825 2020-07-07 Patrick Palka <ppalka@redhat.com>
828 * cxx-pretty-print.c (pp_cxx_unqualified_id): Check
829 PRIMARY_TEMPLATE_P before printing the innermost template
832 2020-07-07 Martin Sebor <msebor@redhat.com>
835 * parser.c (class_decl_loc_t::diag_mismatched_tags): Print notes only
836 if warning_at returns nonzero.
838 2020-07-06 Martin Sebor <msebor@redhat.com>
841 * call.c (build_over_call): Check calls only when tf_warning is set.
843 2020-07-06 Nathan Sidwell <nathan@acm.org>
845 * decl.c (push_library_fn): Return the decl pushdecl_toplevel returns.
846 * except.c (verify_library_fn): Replace with ...
847 (declare_library_fn_1): ... this fn. Always push the fn.
848 (declare_library_fn): Call it.
849 (build_throw): Call declare_library_fn_1.
851 2020-07-06 Jonathan Wakely <jwakely@redhat.com>
854 * parser.c (cp_parser_toplevel_declaration): Only do pedwarn for
855 empty-declaration in C++98.
857 2020-07-02 Jason Merrill <jason@redhat.com>
858 Jakub Jelinek <jakub@redhat.com>
860 * decl.c (grokfndecl): Allow consteval virtual.
861 * search.c (check_final_overrider): Check consteval mismatch.
862 * constexpr.c (cxx_eval_thunk_call): New.
863 (cxx_eval_call_expression): Call it.
864 * cvt.c (cp_get_fndecl_from_callee): Handle FDESC_EXPR.
865 * decl2.c (mark_vtable_entries): Track vtables with consteval.
866 (maybe_emit_vtables): Pass consteval_vtables through.
867 (clear_consteval_vfns): Replace consteval with nullptr.
868 (c_parse_final_cleanups): Call it.
870 2020-07-01 Nathan Sidwell <nathan@acm.org>
872 * class.c (copy_fndecl_with_name): Add additional predicate args, do
873 not deduce them locally.
874 (copy_operator_fn): Adjust copy_fndecl_with_name call.
875 (build_clone): Add vtt and inherited predicate args. Pass through
876 to copy_fndecl_with_name call.
877 (build_cdtor_clones): Likewise, pass through to build_clone as
879 (build_cdtor): Determine vtt and inherited here.
880 * cp-tree.h (DECL_NEEDS_CTT_PARM_P): Delete.
882 2020-06-30 Nathan Sidwell <nathan@acm.org>
884 * cp-tree.h (copy_fndecl_with_name): Rename to ...
885 (copy_operatorn_fn): ... this. Change arg type.
886 (clone_function_decl): Rename to ...
887 (clone_cdtor): ... this.
888 * class.c (copy_fndecl_with_name): Make static.
889 (copy_operator_fn): New wrapper.
890 (build_clones): Rename to ...
891 (build_cdtor_clones): ... this.
892 (clone_function_decl): Rename to ...
893 (clone_cdtor): ... this. Adjust build_clones calls.
894 (clone_constructors_and_destructors): Adjust clone_function_decl
896 * method.c (implicitly_declare_fn): Adjust copy_fndecl_with_name
898 (lazily_declare_fn): Adjust clone_function_decl call.
899 * pt.c (tsubst_function_decl): Likewise.
900 (instantiate_template_1): Likewise.
902 2020-06-30 Iain Sandoe <iain@sandoe.co.uk>
904 * coroutines.cc (morph_fn_to_coro): Remove trailing
905 space in a diagnostic.
907 2020-06-30 Iain Sandoe <iain@sandoe.co.uk>
909 * coroutines.cc (expand_one_await_expression): Remove
910 code dealing with initial suspend.
911 (build_actor_fn): Remove code special-casing initial
912 and final suspend. Handle the final suspend and marking
913 of the coroutine as done.
914 (coro_rewrite_function_body): New.
915 (bind_expr_find_in_subtree): Remove.
916 (coro_body_contains_bind_expr_p): Remove.
917 (morph_fn_to_coro): Split the rewrite of the original
918 function into coro_rewrite_function_body and call it.
920 2020-06-29 Marek Polacek <polacek@redhat.com>
923 * decl.c (duplicate_decls): Make sure a concept or a variable
924 template is unique in its declarative region.
926 2020-06-29 Marek Polacek <polacek@redhat.com>
929 * pt.c (collect_ctor_idx_types): Use TREE_TYPE.
931 2020-06-28 Iain Sandoe <iain@sandoe.co.uk>
934 * coroutines.cc (register_local_var_uses): Skip past
937 2020-06-27 Iain Sandoe <iain@sandoe.co.uk>
940 * coroutines.cc (get_awaitable_var): New helper.
941 (build_co_await): Check more carefully before
942 copying an awaitable.
943 (expand_one_await_expression): No initializer
944 is required when the awaitable is not a temp.
945 (register_awaits): Remove handling that is now
946 completed when the await expression is built.
948 2020-06-27 Iain Sandoe <iain@sandoe.co.uk>
950 * coroutines.cc (morph_fn_to_coro): Diagnose unavailable
951 get_return_object_on_allocation_failure.
953 2020-06-26 Iain Sandoe <iain@sandoe.co.uk>
956 * coroutines.cc (struct coroutine_info):Add a field
957 to hold computed p.return_void expressions.
958 (coro_build_promise_expression): New.
959 (get_coroutine_return_void_expr): New.
960 (finish_co_yield_expr): Build the promise expression
961 using coro_build_promise_expression.
962 (finish_co_return_stmt): Likewise.
963 (build_init_or_final_await): Likewise.
964 (morph_fn_to_coro): Likewise, for several cases.
966 2020-06-26 Iain Sandoe <iain@sandoe.co.uk>
968 * coroutines.cc (morph_fn_to_coro): Handle error
969 returns in building g-r-o-o-a-f expressions.
971 2020-06-24 Nicholas Krause <xerofoify@gmail.com>
974 * typeck2.c (cxx_incomplete_type_diagnostic): Add missing
975 TYPE_EXPANSION_PACK check for diagnosing incomplete types in
976 cxx_incomplete_type_diagnostic.
978 2020-06-24 Iain Sandoe <iain@sandoe.co.uk>
982 * coroutines.cc (act_des_fn): Copy function
983 attributes onto the outlined coroutine helpers.
985 2020-06-24 Jason Merrill <jason@redhat.com>
987 * call.c (build_over_call): Only call build_base_path once.
989 2020-06-24 Jason Merrill <jason@redhat.com>
992 * call.c (build_over_call): Look up the overrider in base_binfo.
993 * class.c (lookup_vfn_in_binfo): Look through BINFO_PRIMARY_P.
995 2020-06-23 Jason Merrill <jason@redhat.com>
998 Implement C++20 P2082R1, Fixing CTAD for aggregates.
999 * cp-tree.h (TPARMS_PRIMARY_TEMPLATE): Split out from...
1000 (DECL_PRIMARY_TEMPLATE): ...here.
1001 (builtin_guide_p): Declare.
1002 * decl.c (reshape_init_class): Handle bases of a template.
1003 (reshape_init_r): An array with dependent bound takes a single
1005 * pt.c (tsubst_default_argument): Shortcut {}.
1006 (unify_pack_expansion): Allow omitted arguments to trailing pack.
1007 (builtin_guide_p): New.
1008 (collect_ctor_idx_types): Give a trailing pack a {} default
1009 argument. Handle arrays better.
1011 2020-06-23 Iain Sandoe <iain@sandoe.co.uk>
1014 * coroutines.cc (morph_fn_to_coro): Apply a cleanup to
1015 the get return object when the DTOR is non-trivial.
1017 2020-06-20 Iain Sandoe <iain@sandoe.co.uk>
1020 * coroutines.cc (morph_fn_to_coro): Update handling of
1021 get-return-object-on-allocation-fail and diagnose missing
1024 2020-06-20 Jason Merrill <jason@redhat.com>
1026 * call.c (joust): Only compare constraints for non-template
1027 candidates with matching parameters.
1028 * pt.c (tsubst_pack_expansion): Fix getting a type parameter
1030 (more_specialized_fn): Only compare constraints for candidates with
1031 matching parameters.
1033 2020-06-19 Jason Merrill <jason@redhat.com>
1035 * method.c (early_check_defaulted_comparison): Allow defaulting
1036 comparison outside class. Complain if non-member operator isn't a
1039 2020-06-18 Jason Merrill <jason@redhat.com>
1041 * method.c (early_check_defaulted_comparison): Check for &&.
1042 (build_comparison_op): Allow empty union. Diagnose non-category
1044 (common_comparison_type): Remove handling for non-category type.
1046 2020-06-18 Marek Polacek <polacek@redhat.com>
1049 * pt.c (finish_template_variable): Return if
1050 coerce_innermost_template_parms return error_mark_node.
1052 2020-06-18 Marek Polacek <polacek@redhat.com>
1055 * pt.c (tsubst_copy_and_build) <case NEW_EXPR>: Return error_mark_node
1056 if placement is erroneous.
1058 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
1061 * parser.c (cp_parser_elaborated_type_specifier): Do not warn
1062 unless in a declaration.
1064 2020-06-17 Jason Merrill <jason@redhat.com>
1066 * cp-tree.h (copy_fndecl_with_name): Declare.
1067 * class.c (copy_fndecl_with_name): Split out from...
1068 (build_clone): ...here.
1069 (add_implicitly_declared_members): Add op== to TYPE_FIELDS.
1070 * method.c (implicitly_declare_fn): Use copy_fndecl_with_name.
1072 2020-06-17 Jason Merrill <jason@redhat.com>
1074 * call.c (build_new_op_1): Don't look for a CALL_EXPR when
1075 calling a consteval function.
1077 2020-06-17 Jason Merrill <jason@redhat.com>
1079 * decl2.c (grokfield): Pass SD_DEFAULTED and SD_DELETED.
1080 * decl.c (duplicate_decls): Reduce error for delete
1081 after earlier declaration to pedwarn.
1083 2020-06-17 Marek Polacek <polacek@redhat.com>
1086 * constexpr.c (maybe_fold_non_dependent_expr): New.
1087 * cp-tree.h (maybe_fold_non_dependent_expr): Declare.
1088 * typeck.c (cp_build_array_ref): Call maybe_fold_non_dependent_expr
1089 instead of maybe_constant_value.
1091 2020-06-16 Marek Polacek <polacek@redhat.com>
1094 * call.c (add_list_candidates): Return if a designated initializer
1095 is used with a non-aggregate.
1096 (implicit_conversion_error): Give an error for the case above.
1098 2020-06-16 Marek Polacek <polacek@redhat.com>
1101 * name-lookup.c (check_local_shadow): Check if types are
1102 non-null before calling same_type_p.
1104 2020-06-16 Jakub Jelinek <jakub@redhat.com>
1106 * semantics.c (handle_omp_for_class_iterator): Adjust
1107 c_omp_check_loop_iv_exprs caller.
1108 (finish_omp_for): Likewise. Don't call fold_build_cleanup_point_expr
1109 before calling c_finish_omp_for and c_omp_check_loop_iv, move it
1111 * pt.c (tsubst_omp_for_iterator): Handle non-rectangular loops.
1113 2020-06-16 Jakub Jelinek <jakub@redhat.com>
1115 * parser.c (cp_parser_omp_clause_schedule): Reject modifier separated
1116 from kind by comma rather than colon.
1118 2020-06-16 Patrick Palka <ppalka@redhat.com>
1120 * pt.c (perform_instantiation_time_access_checks): No need to
1122 * semantics.c (enforce_access): Verify that decl is not
1125 2020-06-16 Patrick Palka <ppalka@redhat.com>
1129 * cp-tree.h (qualified_typedef_usage_s): Delete.
1130 (qualified_typedef_usage_t): Delete.
1131 (deferred_access_check): Move up in file.
1132 (tree_template_info::typedefs_needing_access_checking): Delete.
1133 (tree_template_info::deferred_access_checks): New field.
1134 (TI_TYPEDEFS_NEEDING_ACCESS_CHECKING): Rename to ...
1135 (TI_DEFERRED_ACCESS_CHECKS): ... this, and adjust accordingly.
1136 * pt.c (perform_typedefs_access_check): Rename to ...
1137 (perform_instantiation_time_access_checks): ... this, and adjust
1138 accordingly. Remove unnecessary tree tests.
1139 (instantiate_class_template_1): Adjust accordingly.
1140 (instantiate_decl): Likewise.
1141 * semantics.c (enforce_access): Likewise.
1143 2020-06-16 Patrick Palka <ppalka@redhat.com>
1147 * call.c (enforce_access): Move to semantics.c.
1148 * cp-tree.h (enforce_access): Delete.
1149 (get_types_needing_access_check): Delete.
1150 (add_typedef_to_current_template_for_access_check): Delete.
1151 * decl.c (make_typename_type): Adjust accordingly. Use
1152 check_accessibility_of_qualified_id instead of directly using
1153 perform_or_defer_access_check.
1154 * parser.c (cp_parser_template_declaration_after_parameters):
1155 Don't push a dk_no_check access state when parsing a template.
1156 * pt.c (get_types_needing_access_check): Delete.
1157 (append_type_to_template_for_access_check_1): Delete.
1158 (perform_typedefs_access_check): Adjust. If type_decl is a
1159 FIELD_DECL, also check its DECL_CONTEXT for dependence. Use
1160 tsubst_copy instead of tsubst to substitute into type_decl so
1161 that we substitute into the DECL_CONTEXT of a FIELD_DECL.
1162 (append_type_to_template_for_access_check): Delete.
1163 * search.c (accessible_p): Remove the processing_template_decl
1165 * semantics.c (enforce_access): Moved from call.c. If we're
1166 parsing a template and the access check failed, add the check to
1167 TI_TYPEDEFS_NEEDING_ACCESS_CHECKING.
1168 (perform_or_defer_access_check): Adjust comment.
1169 (add_typedef_to_current_template_for_access_check): Delete.
1170 (check_accessibility_of_qualified_id): Adjust accordingly.
1171 Exit early if the scope is dependent.
1173 2020-06-11 Patrick Palka <ppalka@redhat.com>
1176 * constraint.cc (associate_classtype_constraints): If there is a
1177 discrepancy between the current template depth and the template
1178 depth of the original declaration, then adjust the template
1179 parameter depth within the current constraints appropriately.
1180 * pt.c (tsubst_friend_class): Substitute into and set the
1181 constraints on the injected declaration.
1183 2020-06-11 Iain Sandoe <iain@sandoe.co.uk>
1185 * coroutines.cc (instantiate_coro_traits): Pass a reference
1186 to lambda closure objects to traits instantiation.
1187 (morph_fn_to_coro): Likewise for promise parameter
1188 preview and allocator lookup.
1190 2020-06-10 Iain Sandoe <iain@sandoe.co.uk>
1193 * call.c (add_candidates): Use vec_safe_length() for
1194 testing the arguments list.
1195 (build_new_method_call_1): Use vec_safe_is_empty() when
1196 checking for an empty args list.
1198 2020-06-10 Marek Polacek <polacek@redhat.com>
1201 * parser.c (cp_parser_direct_declarator): Clear
1202 CP_PARSER_FLAGS_DELAY_NOEXCEPT if the declarator kind is not
1205 2020-06-09 Iain Sandoe <iain@sandoe.co.uk>
1208 * coroutines.cc (expand_one_await_expression): Build separate
1209 DTOR trees for the awaitable object on the destroy and resume
1212 2020-06-09 Jason Merrill <jason@redhat.com>
1215 * cp-gimplify.c (predeclare_vla): Only predeclare a VLA if it's
1216 wrapped in a pointer type.
1218 2020-06-05 Marek Polacek <polacek@redhat.com>
1221 * call.c (build_converted_constant_expr_internal): Allow
1222 list-initialization.
1224 2020-06-05 Iain Sandoe <iain@sandoe.co.uk>
1226 * cp-tree.def (CO_RETURN_EXPR): Correct the class
1227 to use tcc_statement.
1229 2020-06-05 Jason Merrill <jason@redhat.com>
1231 * error.c (dump_binary_op): Handle negative operand to
1234 2020-06-04 Jason Merrill <jason@redhat.com>
1237 * constexpr.c (cxx_eval_constant_expression) [OBJ_TYPE_REF]:
1238 Evaluate OBJ_TYPE_REF_EXPR.
1240 2020-06-04 Jason Merrill <jason@redhat.com>
1243 * class.c (lookup_vfn_in_binfo): New.
1244 * call.c (build_over_call): Use it.
1245 * cp-tree.h (resolves_to_fixed_type_p): Add default argument.
1246 (lookup_vfn_in_binfo): Declare.
1248 2020-06-04 Iain Sandoe <iain@sandoe.co.uk>
1251 * coroutines.cc (morph_fn_to_coro): Ensure that the get-
1252 return-object is constructed correctly; When it is not the
1253 final return value, pass it to the CTOR of the return type
1254 as an rvalue, per the standard comment.
1256 2020-06-04 Jakub Jelinek <jakub@redhat.com>
1260 * constexpr.c (cxx_eval_constant_expression): Diagnose CONVERT_EXPR
1261 conversions from pointer types to arithmetic types here...
1262 (cxx_eval_outermost_constant_expr): ... instead of here.
1264 2020-06-03 Mark Wielaard <mark@klomp.org>
1266 * parser.c (cp_lexer_safe_previous_token): New function.
1267 (cp_parser_error_1): Add name_hint if the previous token is
1268 a string literal and next token is a CPP_NAME and we have a
1269 missing header suggestion for the name.
1271 2020-06-03 Patrick Palka <ppalka@redhat.com>
1273 * pt.c (process_partial_specialization): Pass the full set of
1274 generic template arguments to strictly_subsumes.
1276 2020-06-03 Patrick Palka <ppalka@redhat.com>
1279 * pt.c (most_specialized_partial_spec): Reorganize the loop over
1280 DECL_TEMPLATE_SPECIALIZATIONS. Check constraints_satisfied_p on
1281 the original template declaration, not on the tsubsted one.
1283 2020-06-03 Iain Sandoe <iain@sandoe.co.uk>
1286 * coroutines.cc (finish_co_await_expr): Revise to allow for
1288 (finish_co_yield_expr): Likewise.
1290 2020-06-03 Jason Merrill <jason@redhat.com>
1293 * cp-tree.h (predeclare_vla): Declare.
1294 * cp-gimplify.c (predeclare_vla): Handle getting a decl.
1295 * pt.c (tsubst_expr) [DECL_EXPR]: Use it.
1297 2020-06-03 Tobias Burnus <tobias@codesourcery.com>
1299 * cp-gimplify.c (cxx_omp_predetermined_mapping): New.
1300 * cp-objcp-common.h (LANG_HOOKS_OMP_PREDETERMINED_MAPPING): Redfine.
1301 * cp-tree.h (cxx_omp_predetermined_mapping): Declare.
1303 2020-06-02 Jason Merrill <jason@redhat.com>
1306 * pt.c (tsubst_decl): Relax assert.
1308 2020-06-02 Iain Sandoe <iain@sandoe.co.uk>
1311 * coroutines.cc (build_co_await): Wrap the co_await expression
1312 in a TARGET_EXPR, where needed.
1313 (finish_co_yield_expr): Likewise.
1315 2020-06-02 Patrick Palka <ppalka@redhat.com>
1319 * pt.c (tsubst_function_decl): Don't do set_constraints when
1320 regenerating a lambda.
1321 (tsubst_lambda_expr): Substitute into the lambda's constraints
1322 and do set_constraints here.
1324 2020-06-01 Jason Merrill <jason@redhat.com>
1329 * class.c (build_vfn_ref): Revert 95311 change.
1330 * cp-ubsan.c (cp_ubsan_maybe_instrument_member_call): Build a
1333 2020-06-01 Iain Sandoe <iain@sandoe.co.uk>
1336 * coroutines.cc (struct param_info): Remove rv_ref field.
1337 (build_actor_fn): Remove specifial rvalue ref handling.
1338 (morph_fn_to_coro): Likewise.
1340 2020-05-31 Iain Sandoe <iain@sandoe.co.uk>
1343 * coroutines.cc (morph_fn_to_coro): If we see an
1344 early fatal error, drop the erroneous function body.
1346 2020-05-31 Iain Sandoe <iain@sandoe.co.uk>
1348 * coroutines.cc (build_co_await): Remove unused
1350 (finish_co_await_expr): Likewise.
1351 (finish_co_yield_expr): Likewise; revise comment.
1353 2020-05-30 Iain Sandoe <iain@sandoe.co.uk>
1355 * coroutines.cc (morph_fn_to_coro): Revise initialization
1356 of the frame pointer to avoid an unused value.
1358 2020-05-30 Patrick Palka <ppalka@redhat.com>
1361 * constraint.cc (satisfaction_value): Accept INTEGER_CST of any
1364 2020-05-29 Patrick Palka <ppalka@redhat.com>
1365 Jason Merrill <jason@redhat.com>
1368 * class.c (add_method): Let special member function templates
1369 coexist if they are not equivalently constrained, or in a class
1372 2020-05-29 Jason Merrill <jason@redhat.com>
1375 * pt.c (process_template_parm): Set DECL_TEMPLATE_INFO
1376 on the DECL_TEMPLATE_RESULT.
1378 2020-05-29 Marek Polacek <polacek@redhat.com>
1381 * cp-gimplify.c (cp_fold) <case MODIFY_EXPR>: Don't set
1382 TREE_THIS_VOLATILE here.
1383 (cp_fold): Set it here along with TREE_NO_WARNING.
1385 2020-05-29 Jason Merrill <jason@redhat.com>
1389 * class.c (build_vfn_ref): Don't fold the INDIRECT_REF.
1391 2020-05-29 Patrick Palka <ppalka@redhat.com>
1396 * parser.c (cp_parser_requires_clause_expression): Temporarily
1397 increment processing_template_decl only if it is 0.
1398 (cp_parser_constraint_expression): Likewise.
1399 (cp_parser_requires_expression): Likewise.
1401 2020-05-29 Patrick Palka <ppalka@redhat.com>
1404 * constexpr.c (get_or_insert_ctor_field): Add limited support
1405 for RANGE_EXPR index lookups.
1407 2020-05-28 Jakub Jelinek <jakub@redhat.com>
1410 * decl.c (cp_finish_decomp): Call complete_type before checking
1413 2020-05-28 Jason Merrill <jason@redhat.com>
1416 * decl.c (cp_finish_decl): Revert r9-297 change.
1417 (check_static_variable_definition): Likewise.
1418 * constexpr.c (ensure_literal_type_for_constexpr_object): Likewise.
1419 * pt.c (instantiate_decl): Return early on type error.
1421 2020-05-27 Jason Merrill <jason@redhat.com>
1424 * decl.c (reshape_init_array_1): Don't reuse in overload context.
1426 2020-05-27 Jason Merrill <jason@redhat.com>
1429 * call.c (build_new_op_1): Suppress
1430 warn_zero_as_null_pointer_constant across comparison of <=> result
1433 2020-05-27 Jason Merrill <jason@redhat.com>
1436 * decl.c (grokdeclarator): Don't shift attributes in TYPENAME
1439 2020-05-27 Nathan Sidwell <nathan@acm.org>
1442 * pt.c (lookup_template_class_1): Restore alias template mutation.
1444 2020-05-26 Jakub Jelinek <jakub@redhat.com>
1447 * cp-gimplify.c: Include omp-general.h.
1448 (cp_genericize_r) <case OMP_DISTRIBUTE>: For class iteration
1449 variables in composite distribute parallel for, instantiate copy
1450 ctor of their types.
1452 2020-05-23 Patrick Palka <ppalka@redhat.com>
1455 * constexpr.c (cxx_eval_constant_expression)
1456 <case TEMPLATE_ID_EXPR>: Don't evaluate the concept when
1457 constexpr evaluation is uid-sensitive.
1459 2020-05-22 Jason Merrill <jason@redhat.com>
1461 * cp-gimplify.c (cp_gimplify_expr) [CALL_EXPR]: Don't preevaluate
1462 the function address if the call used operator syntax.
1464 2020-05-21 Jason Merrill <jason@redhat.com>
1467 * cp-ubsan.c (cp_ubsan_maybe_instrument_member_call): For a virtual
1468 call, instrument the OBJ_TYPE_REF.
1470 * decl.c (compute_array_index_type_loc): Diagnose expressions
1471 in a template that can't be constant.
1472 * parser.c (cp_parser_direct_declarator): Don't check
1473 non-constant array bounds here.
1475 * cp-tree.h (is_rvalue_constant_expression): Declare.
1476 * constexpr.c (is_rvalue_constant_expression): New.
1477 * parser.c (cp_parser_constant_expression): Use it.
1478 * decl.c (cp_finish_decl): Try to treat a constexpr initializer in a
1479 template as constant.
1481 * typeck.c (build_x_modify_expr): Handle error_mark_node arguments.
1483 * decl.c (grokparms): Return NULL_TREE if any parms were erroneous.
1485 2020-05-21 Iain Sandoe <iain@sandoe.co.uk>
1487 * coroutines.cc (finish_co_return_stmt): Revert change to use
1490 2020-05-21 Patrick Palka <ppalka@redhat.com>
1493 * constexpr.c (constexpr_ctx::uid_sensitive): Remove field.
1494 (uid_sensitive_constexpr_evaluation_value): Define.
1495 (uid_sensitive_constexpr_evaluation_true_counter): Define.
1496 (uid_sensitive_constexpr_evaluation_p): Define.
1497 (uid_sensitive_constexpr_evaluation_sentinel): Define its
1499 (uid_sensitive_constexpr_evaluation_checker): Define its
1500 constructor and its evaluation_restricted_p method.
1501 (get_fundef_copy): Remove 'ctx' parameter. Use u_s_c_e_p
1502 instead of constexpr_ctx::uid_sensitive.
1503 (cxx_eval_call_expression): Use u_s_c_e_p instead, and test it
1504 last. Adjust call to get_fundef_copy.
1505 (instantiate_cx_fn_r): Test u_s_c_e_p so that we increment the
1506 counter if necessary.
1507 (cxx_eval_outermost_constant_expr): Remove 'uid_sensitive'
1508 parameter. Adjust function body accordingly.
1509 (maybe_constant_value): Remove 'uid_sensitive' parameter and
1510 adjust function body accordingly. Set up a
1511 uid_sensitive_constexpr_evaluation_checker, and use it to
1512 conditionally update the cv_cache.
1513 * cp-gimplify.c (cp_fold): Set up a
1514 uid_sensitive_constexpr_evaluation_checker, and use it to
1515 conditionally update the fold_cache.
1516 * cp-tree.h (maybe_constant_value): Update declaration.
1517 (struct uid_sensitive_constexpr_evaluation_sentinel): Define.
1518 (struct sensitive_constexpr_evaluation_checker): Define.
1519 * expr.c (fold_for_warn): Set up a
1520 uid_sensitive_constexpr_evaluation_sentinel before calling
1521 the folding subroutines. Drop all but the first argument to
1522 maybe_constant_value.
1524 2020-05-20 Marek Polacek <polacek@redhat.com>
1527 * parser.c (cp_parser_unqualified_id): Reject simple-template-id as
1528 the declarator-id of a destructor.
1529 (cp_parser_constructor_declarator_p): Reject simple-template-id as
1530 the declarator-id of a constructor.
1532 2020-05-20 Marek Polacek <polacek@redhat.com>
1536 * cp-tree.h (SD_DECOMPOSITION): New flag.
1537 * decl.c (duplicate_decls): Make sure a structured binding is unique
1538 in its declarative region.
1539 (start_decl): If INITIALIZED is SD_DECOMPOSITION, call
1540 fit_decomposition_lang_decl.
1541 (grokdeclarator): Compare INITIALIZED directly to SD_* flags.
1542 * parser.c (cp_parser_decomposition_declaration): Pass SD_DECOMPOSITION
1545 2020-05-20 Patrick Palka <ppalka@redhat.com>
1548 * typeck.c (structural_comptypes): Don't perform
1549 context-dependent resolution of TYPENAME_TYPEs when
1550 comparing_specializations.
1552 2020-05-19 Nathan Sidwell <nathan@acm.org>
1554 * pt.c (lookup_template_class_1): Do not reinit template_info of an
1557 2020-05-18 Martin Sebor <msebor@redhat.com>
1560 * call.c ((maybe_warn_class_memaccess): Use is_byte_access_type.
1561 * cp-tree.h (is_dummy_object): Return bool.
1562 (is_byte_access_type): Declare new function.
1563 * tree.c (is_dummy_object): Return bool.
1564 (is_byte_access_type): Define new function.
1566 2020-05-19 Patrick Palka <ppalka@redhat.com>
1569 * pt.c (init_template_processing): Enable sanitization for
1570 decl_specializations and type_specializations.
1573 * pt.c (fn_type_unification): Pass 'fn' instead of NULL_TREE as
1574 the 'in_decl' parameter to coerce_template_parms.
1576 2020-05-18 Marek Polacek <polacek@redhat.com>
1579 * typeck.c (cp_build_binary_op): Use fold_for_warn instead of
1582 2020-05-18 Marek Polacek <polacek@redhat.com>
1585 * cvt.c (cp_get_fndecl_from_callee): Return NULL_TREE if the function
1586 type is not INDIRECT_TYPE_P.
1587 * decl.c (omp_declare_variant_finalize_one): Call
1588 cp_get_callee_fndecl_nofold instead of looking for the function decl
1591 2020-05-18 Marek Polacek <polacek@redhat.com>
1594 * parser.c (cp_parser_has_attribute_expression): Sorry on a
1595 type-dependent argument.
1597 2020-05-18 Marek Polacek <polacek@redhat.com>
1601 * call.c (add_builtin_candidate) <case EQ_EXPR>: Create candidate
1602 operator functions when type is std::nullptr_t for ==/!=.
1603 * typeck.c (composite_pointer_type_r): Add a bool * parameter. Use it
1604 to maybe add "const" to the pointer type.
1605 (composite_pointer_type): Update the call to composite_pointer_type_r.
1606 (cp_build_binary_op): Turn two warning_at into error_at. Print the
1609 2020-05-18 Jason Merrill <jason@redhat.com>
1611 * call.c (build_over_call): Remove unnecessary
1612 cp_stabilize_reference.
1614 2020-05-18 Marek Polacek <polacek@redhat.com>
1616 * call.c (add_builtin_candidate): Don't create a builtin overload
1617 candidate for ++ when type is bool in C++17.
1619 2020-05-18 Marek Polacek <polacek@redhat.com>
1621 * cfns.h: Regenerated.
1623 2020-05-17 Iain Sandoe <iain@sandoe.co.uk>
1625 * coroutines.cc (morph_fn_to_coro): Initialize the gro variable.
1627 2020-05-16 Iain Sandoe <iain@sandoe.co.uk>
1629 * coroutines.cc (finish_co_return_stmt): Implement rules
1630 from [class.copy.elision] /3.
1632 2020-05-16 Patrick Palka <ppalka@redhat.com>
1635 * semantics.c (finish_decltype_type): Call
1636 instantiate_non_dependent_expr_sfinae on the expression.
1638 2020-05-15 Patrick Palka <ppalka@redhat.com>
1642 2020-04-07 Patrick Palka <ppalka@redhat.com>
1645 * typeck2.c (process_init_constructor_array): Propagate
1646 CONSTRUCTOR_PLACEHOLDER_BOUNDARY up from each element initializer to
1647 the array initializer.
1649 2020-05-15 Jason Merrill <jason@redhat.com>
1651 PR c++/93286 - ICE with __is_constructible and variadic template.
1652 * pt.c (tsubst_tree_list): New.
1653 (tsubst, tsubst_copy_and_build): Use it.
1654 * decl2.c (is_late_template_attribute): Handle error_mark_node args.
1656 2020-05-15 Nathan Sidwell <nathan@acm.org>
1658 * pt.c (template_args_equal): Fix thinkos in previous 'cleanup'.
1660 2020-05-14 Jason Merrill <jason@redhat.com>
1663 * pt.c (maybe_instantiate_noexcept): Change clone handling.
1665 2020-05-14 Patrick Palka <ppalka@redhat.com>
1668 * call.c (build_op_call): Pass complain to lookup_fnfields.
1669 (build_special_member_call): Likewise.
1670 * class.c (type_requires_array_cookie): Pass tf_warning_or_error
1672 * cp-tree.h (lookup_fnfields): Add tsubst_flags_t parameter.
1673 * except.c (build_throw): Pass tf_warning_or_error to
1675 * init.c (build_new_1): Pass complain to lookup_fnfields.
1676 * method.c (locate_fn_flags): Likewise.
1677 * name-lookup.c (lookup_name_real_1): Pass tf_warning_or_error
1679 * pt.c (tsubst_baselink): Pass complain to lookup_fnfields.
1680 * search.c (lookup_fnfields): New 'complain' parameter. Pass it
1683 2020-05-14 Nathan Sidwell <nathan@acm.org>
1685 * parser.c (cp_parser_diagnose_invalid_typename): Mention
1686 std=c++20 not 2a, reformat dependent binfo inform loops.
1688 * pt.c (tsubst_template_decl): Reorder and commonize some control
1691 * pt.c (tsubst_friend_function): Simplify control flow.
1693 * pt.c (lookup_template_class_1): Remove unnecessary else by
1694 simply grabbing TYPE_NAME earlier.
1696 * pt.c (push_template_decl_real): Adjust friend pushing logic.
1697 Reinit template type.
1699 * pt.c (build_template_decl): Init DECL_TEMPLATE_RESULT &
1701 (process_partial_specialization): ... not here ...
1702 (push_template_decl_real, add_inherited_template_parms)
1703 (build_deduction_guide): ... or here.
1705 2020-05-14 Jakub Jelinek <jakub@redhat.com>
1707 * cp-gimplify.c (cp_genericize_r): Set cfun->has_omp_target.
1709 2020-05-13 Patrick Palka <ppalka@redhat.com>
1712 * init.c (build_vec_delete_1): Just return error_mark_node if
1713 deallocate_expr is error_mark_node.
1714 (build_delete): Just return error_mark_node if do_delete is
1717 2020-05-13 Patrick Palka <ppalka@redhat.com>
1720 * constraint.cc (tsubst_requires_expr): Produce a new
1721 requires-expression when processing_template_decl, even if
1722 template arguments are not dependent.
1724 2020-05-13 Marek Polacek <polacek@redhat.com>
1727 * decl.c (duplicate_decls): Set DECL_HAS_DEPENDENT_EXPLICIT_SPEC_P.
1729 2020-05-13 Nathan Sidwell <nathan@acm.org>
1731 * pt.c (template_args_equal): Reorder category checking for
1734 * pt.c (perform_typedefs_access_check): Cache expensively
1735 calculated object references.
1736 (check_auto_in_tmpl_args): Just assert we do not get unexpected
1737 nodes, rather than silently do nothing.
1738 (append_type_to_template_for_access): Likewise, cache expensie
1741 * pt.c (canonical_type_parameter): Simplify.
1743 Formatting fixups & some simplifications.
1744 * pt.c (spec_hash_table): New typedef.
1745 (decl_specializations, type_specializations): Use it.
1746 (retrieve_specialization): Likewise.
1747 (register_specialization): Remove unnecessary casts.
1748 (push_template_decl_real): Reformat.
1749 (instantiate_class_template_1): Use more RAII.
1750 (make_argument_pack): Simplify.
1751 (instantiate_template_1): Use gcc_checking_assert for expensive
1753 (instantiate_decl): Likewise.
1754 (resolve_typename_type): Reformat comment.
1755 * semantics.c (struct deferred_access): Remove unnecessary GTY on
1757 (begin_class_definition): Fix formatting.
1759 2020-05-13 Jason Merrill <jason@redhat.com>
1761 * call.c, class.c, constexpr.c, constraint.cc, decl.c, init.c,
1762 lambda.c, lex.c, method.c, name-lookup.c, parser.c, pt.c, tree.c,
1763 typeck2.c: Change cxx2a to cxx20.
1765 2020-05-12 Marek Polacek <polacek@redhat.com>
1768 * parser.c (cp_parser_postfix_expression) <case CPP_OPEN_PAREN>: When
1769 looking for a block-scope function declaration, look through the whole
1770 set, not just the first function in the overload set.
1772 2020-05-12 Jakub Jelinek <jakub@redhat.com>
1775 * pt.c (tsubst_decl): Deal with DECL_OMP_PRIVATIZED_MEMBER for
1778 2020-05-11 Jason Merrill <jason@redhat.com>
1780 Resolve C++20 NB comment CA104
1781 * pt.c (determine_specialization): Compare constraints for
1782 specialization of member template of class instantiation.
1784 2020-05-11 Jason Merrill <jason@redhat.com>
1788 * tree.c (cp_walk_subtrees): Stop at typedefs.
1789 Handle TYPENAME_TYPE here.
1790 * pt.c (find_parameter_packs_r): Not here.
1791 (for_each_template_parm_r): Clear *walk_subtrees.
1792 * decl2.c (min_vis_r): Look through typedefs.
1794 2020-05-11 Jason Merrill <jason@redhat.com>
1796 * call.c (implicit_conversion_error): Split out from...
1797 (perform_implicit_conversion_flags): ...here.
1798 (build_converted_constant_expr_internal): Use it.
1800 2020-05-11 Jason Merrill <jason@redhat.com>
1803 * parser.c (inject_parm_decls): Set current_class_ptr here.
1804 (cp_parser_direct_declarator): And here.
1805 (cp_parser_late_return_type_opt): Not here.
1806 (cp_parser_noexcept_specification_opt): Nor here.
1807 (cp_parser_exception_specification_opt)
1808 (cp_parser_late_noexcept_specifier): Remove unneeded parameters.
1810 2020-05-11 Jason Merrill <jason@redhat.com>
1812 * decl.c (cxx_init_decl_processing): Call declare_weak for
1815 2020-05-11 Jason Merrill <jason@redhat.com>
1817 * pt.c (instantiate_class_template_1): Call tsubst_expr for
1818 STATIC_ASSERT member.
1819 * ptree.c (cxx_print_xnode): Handle STATIC_ASSERT.
1821 2020-05-11 Jason Merrill <jason@redhat.com>
1823 * pt.c (find_parameter_packs_r) [LAMBDA_EXPR]: Remove redundant
1824 walking of capture list.
1826 2020-05-11 Jason Merrill <jason@redhat.com>
1828 * cp-tree.h (LOOKUP_EXPLICIT_TMPL_ARGS): Remove.
1829 * call.c (build_new_function_call): Don't set it.
1830 (build_new_method_call_1): Likewise.
1831 (build_over_call): Check cand->explicit_targs instead.
1833 2020-05-11 Jason Merrill <jason@redhat.com>
1835 * decl.c (compute_array_index_type_loc): Stabilize before building
1838 2020-05-11 Jason Merrill <jason@redhat.com>
1840 * decl.c (grokdeclarator): Adjust deprecated_state here.
1841 (start_decl): Not here.
1843 2020-05-08 Iain Sandoe <iain@sandoe.co.uk>
1846 * coroutines.cc (build_actor_fn): Ensure that bind scopes
1847 are marked as having side-effects where necessary.
1848 (replace_statement_captures): Likewise.
1849 (morph_fn_to_coro): Likewise.
1851 2020-05-08 Nathan Sidwell <nathan@acm.org>
1853 * NEWS: Delete, it is so stale.
1855 * parser.c (cp_lexer_set_source_position_from_token): EOF has a
1858 2020-05-07 Iain Sandoe <iain@sandoe.co.uk>
1862 * coroutines.cc (morph_fn_to_coro): Set unformed outline
1863 functions to error_mark_node. For early error returns suppress
1864 warnings about missing ramp return values. Fix reinstatement
1865 of the function body on pre-existing initial error.
1866 * decl.c (finish_function): Use the normal error path for fails
1867 in the ramp function, do not try to compile the helpers if the
1870 2020-05-07 Marek Polacek <polacek@redhat.com>
1872 PR c++/94590 - Detect long double -> double narrowing.
1873 * typeck2.c (check_narrowing): Detect long double -> double
1874 narrowing even when double and long double have the same
1875 precision. Make it handle conversions to float too.
1877 2020-05-07 Marek Polacek <polacek@redhat.com>
1880 * parser.c (cp_parser_class_specifier_1): Check that the scope is
1881 nested inside current scope before pushing it.
1883 2020-05-07 Marek Polacek <polacek@redhat.com>
1886 * typeck2.c (check_narrowing): Consider T* to bool narrowing
1889 2020-05-07 Marek Polacek <polacek@redhat.com>
1891 * decl.c (grok_op_properties): Fix spelling of non-static.
1892 * typeck.c (build_class_member_access_expr): Likewise.
1894 2020-05-07 Richard Biener <rguenther@suse.de>
1897 * optimize.c (update_cloned_parm): Copy DECL_NOT_GIMPLE_REG_P.
1899 2020-05-06 Marek Polacek <polacek@redhat.com>
1902 * pt.c (tsubst_copy_and_build): Call type_dependent_expression_p_push
1903 instead of uses_template_parms. Move the warning_sentinels after the
1906 2020-05-06 Jakub Jelinek <jakub@redhat.com>
1909 * typeck.c (cp_strict_aliasing_warning): New function.
1910 (cp_build_indirect_ref_1, build_reinterpret_cast_1): Use
1911 it instead of strict_aliasing_warning.
1914 * method.c (defaulted_late_check): Don't call synthesize_method
1915 on constexpr sfk_comparison if it has been called on it already.
1917 2020-05-06 Nathan Sidwell <nathan@acm.org>
1920 * decl.c (grokdeclarator): Don't splice template attributes in
1921 parm context -- they can apply to the parm.
1923 2020-05-05 Iain Sandoe <iain@sandoe.co.uk>
1925 * coroutines.cc: Remove references to n4849 throughout.
1927 2020-05-05 Jason Merrill <jason@redhat.com>
1930 * pt.c (more_specialized_fn): Do consider parms with no deducible
1931 template parameters.
1933 2020-05-05 Jason Merrill <jason@redhat.com>
1936 * constexpr.c (potential_constant_expression_1): In a lambda
1937 function, consider a captured variable directly.
1939 2020-05-05 Iain Sandoe <iain@sandoe.co.uk>
1941 * coroutines.cc (transform_await_wrapper): Check that we have
1942 no unlowered co_yields.
1943 (captures_temporary): Likewise.
1944 (register_awaits): Likewise.
1946 2020-05-05 Nathan Sidwell <nathan@acm.org>
1949 * coroutines.cc (morph_fn_to_coro): Just check for
1951 * pt.c (tsubst_function_decl): Update lambda fn's this_ptr name.
1953 2020-05-05 Marek Polacek <polacek@redhat.com>
1954 Jason Merrill <jason@redhat.com>
1957 * parser.c (cp_parser_postfix_dot_deref_expression): If we have
1958 a type-dependent object of class type, stash it to
1959 parser->context->object_type. If the postfix expression doesn't have
1961 (cp_parser_class_name): Consider object scope too.
1962 (cp_parser_lookup_name): Remove code dealing with the case when
1963 object_type is unknown_type_node.
1965 2020-05-04 Patrick Palka <ppalka@redhat.com>
1968 * cp-gimplify.c (cp_fold) <case CALL_EXPR>: Move some variable
1969 declarations closer to their uses. Copy the CALL_EXPR only
1970 when one of its arguments has changed.
1971 <case TREE_VEC>: Instead of first collecting the folded
1972 arguments into a releasing_vec, just make a copy of the TREE_VEC
1973 as soon as folding changes one of its arguments.
1975 2020-05-04 Iain Sandoe <iain@sandoe.co.uk>
1977 * coroutines.cc (morph_fn_to_coro): Mark the coro.gro variable
1978 as artificial and ignored.
1980 2020-05-04 Nathan Sidwell <nathan@acm.org>
1982 pt.c (process_template_parm): Don't walk the template list twice,
1983 remember the final node instead.
1984 (end_template_parm_list): Refactor. Comment on why we do a pop
1987 PR c++/94827 -- don't save parms in nested requirement
1988 * constraint.cc (tsubst_nested_requirement): TYPE directly holds
1989 notmalized requirement.
1990 (finish_nested_requirement): Don't stash current tpl parms into
1992 (diagnose_nested_requirement): TYPE directly holds notmalized
1995 2020-05-01 Patrick Palka <ppalka@redhat.com>
1998 * cp-tree.h (check_accessibility_of_qualified_id): Add
1999 tsubst_flags_t parameter and change return type to bool.
2000 * parser.c (cp_parser_lookup_name): Pass tf_warning_to_error to
2001 check_accessibility_of_qualified_id.
2002 * pt.c (tsubst_qualified_id): Return error_mark_node if
2003 check_accessibility_of_qualified_id returns false.
2004 * semantics.c (check_accessibility_of_qualified_id): Add
2005 complain parameter. Pass complain instead of
2006 tf_warning_or_error to perform_or_defer_access_check. Return
2007 true unless perform_or_defer_access_check returns false.
2009 2020-05-01 Marek Polacek <polacek@redhat.com>
2012 * typeck2.c (process_init_constructor_record): Return PICFLAG_ERRONEOUS
2013 if an initializer element was erroneous.
2015 2020-05-01 Jason Merrill <jason@redhat.com>
2018 * init.c (get_nsdmi): Don't push_to_top_level for a local class.
2020 2020-05-01 Jason Merrill <jason@redhat.com>
2023 * decl.c (cp_finish_decl): Also clear TREE_READONLY if
2024 -fmerge-all-constants.
2026 2020-05-01 Jason Merrill <jason@redhat.com>
2029 * pt.c (tsubst_decl): Make sure DECL_VALUE_EXPR continues to have
2030 the same type as the variable.
2032 2020-04-30 Jason Merrill <jason@redhat.com>
2033 Nathan Sidwell <nathan@acm.org>
2036 * constraint.cc (map_arguments): If ARGS is null, it's a
2037 self-mapping of parms.
2038 (finish_nested_requirement): Do not pass argified
2039 current_template_parms to normalization.
2040 (tsubst_nested_requirement): Don't assert no template parms.
2042 2020-04-30 Iain Sandoe <iain@sandoe.co.uk>
2045 * coroutines.cc (transform_local_var_uses): Defer walking
2046 the DECL_INITIALs of BIND_EXPR vars until all the frame
2047 allocations have been made.
2049 2020-04-30 Iain Sandoe <iain@sandoe.co.uk>
2052 * coroutines.cc (register_awaits): Update target
2053 expressions for awaitable and suspend handle
2056 2020-04-30 Iain Sandoe <iain@sandoe.co.uk>
2059 * coroutines.cc (build_co_await): Account for variables
2060 with DECL_VALUE_EXPRs.
2061 (captures_temporary): Likewise.
2062 (register_awaits): Likewise.
2064 2020-04-29 Patrick Palka <ppalka@redhat.com>
2067 * pt.c (find_template_parameter_info::parm_list): New field.
2068 (keep_template_parm): Use the new field to build up the
2069 parameter list here instead of ...
2070 (find_template_parameters): ... here. Return ftpi.parm_list.
2072 2020-04-29 Jakub Jelinek <jakub@redhat.com>
2075 * class.c (build_base_field): Set DECL_FIELD_ABI_IGNORED on C++17 empty
2076 base artificial FIELD_DECLs.
2077 (layout_class_type): Set DECL_FIELD_ABI_IGNORED on empty class
2078 field_poverlapping_p FIELD_DECLs.
2080 2020-04-29 Patrick Palka <ppalka@redhat.com>
2083 * constraint.cc (satisfy_declaration_constraints): Use saved_t
2084 instead of t as the key to decl_satisfied_cache.
2087 * error.c (print_requires_expression_info): Print the dependent
2088 form of the parameter list with its template parameter mapping,
2089 rather than printing the substituted form.
2091 2020-04-28 Jason Merrill <jason@redhat.com>
2094 * decl.c (use_eh_spec_block): Check nothrow type after
2096 * pt.c (maybe_instantiate_noexcept): Call synthesize_method for
2097 DECL_MAYBE_DELETED fns here.
2098 * decl2.c (mark_used): Not here.
2099 * method.c (get_defaulted_eh_spec): Reject DECL_MAYBE_DELETED here.
2101 2020-04-28 Iain Sandoe <iain@sandoe.co.uk>
2104 * coroutines.cc (instantiate_coro_traits): Pass a reference to
2105 object type rather than a pointer type for 'this', for method
2107 (struct param_info): Add a field to hold that the parm is a lambda
2109 (morph_fn_to_coro): Check for lambda closure pointers in the
2110 args. Use a reference to *this when building the args list for the
2111 promise allocator lookup.
2113 2020-04-28 Iain Sandoe <iain@sandoe.co.uk>
2116 * coroutines.cc (coro_promise_type_found_p): Do not
2117 exclude non-classes here (this needs to be handled in the
2119 (morph_fn_to_coro): Allow for the case where the coroutine
2122 2020-04-27 Iain Sandoe <iain@sandoe.co.uk>
2125 * coroutines.cc (struct local_var_info): Add fields for static
2126 variables and those with DECL_VALUE_EXPR redirection.
2127 (transform_local_var_uses): Skip past typedefs and static vars
2128 and then account for redirected variables.
2129 (register_local_var_uses): Likewise.
2131 2020-04-27 Jason Merrill <jason@redhat.com>
2135 * decl.c (grokdeclarator): Move dependent attribute to decl.
2136 * decl2.c (splice_template_attributes): No longer static.
2138 2020-04-27 Patrick Palka <ppalka@redhat.com>
2141 * constexpr.c (cxx_eval_call_expression): Don't set new_obj if we're
2142 evaluating the target constructor of a delegating constructor.
2143 (cxx_eval_store_expression): Don't set TREE_READONLY if the LHS of the
2144 INIT_EXPR is '*this'.
2146 2020-04-26 Marek Polacek <polacek@redhat.com>
2149 * call.c (struct conversion): Add copy_init_p.
2150 (standard_conversion): Set copy_init_p in ck_base and ck_rvalue
2151 if FLAGS demands LOOKUP_ONLYCONVERTING.
2152 (convert_like_real) <case ck_base>: If copy_init_p is set, or
2153 LOOKUP_ONLYCONVERTING into FLAGS.
2155 2020-04-26 Iain Sandoe <iain@sandoe.co.uk>
2158 * coroutines.cc (morph_fn_to_coro): Ensure that
2159 unnamed function params have a usable and distinct
2162 2020-04-24 Jason Merrill <jason@redhat.com>
2165 * decl.c (redeclaration_error_message): Reject defaulted comparison
2166 operator that has been previously declared.
2168 2020-04-25 Patrick Palka <ppalka@redhat.com>
2170 * parser.c (cp_parser_diagnose_invalid_type_name): Suggest enabling
2171 concepts if the invalid identifier is 'requires'.
2173 2020-04-25 Jakub Jelinek <jakub@redhat.com>
2176 * semantics.c (finish_call_expr): When looking if all overloads
2177 are noreturn, use STRIP_TEMPLATE to look through TEMPLATE_DECLs.
2179 2020-04-24 Martin Liska <mliska@suse.cz>
2181 * coroutines.cc: Fix compilation error for release checking
2182 where we miss declaration of ‘coro_body_contains_bind_expr_p’.
2184 2020-04-23 Patrick Palka <ppalka@redhat.com>
2186 * tree.c (zero_init_expr_p): Use uses_template_parms instead of
2190 * pt.c (template_class_depth): Walk into the DECL_FRIEND_CONTEXT of a
2191 friend declaration rather than into its CP_DECL_CONTEXT.
2193 2020-04-23 Iain Sandoe <iain@sandoe.co.uk>
2196 * coroutines.cc (await_statement_expander): Simplify cases.
2197 (struct susp_frame_data): Add fields for truth and/or if
2198 cases, rename one field.
2199 (analyze_expression_awaits): New.
2200 (expand_one_truth_if): New.
2201 (add_var_to_bind): New helper.
2202 (coro_build_add_if_not_cond_break): New helper.
2203 (await_statement_walker): Handle conditional expressions,
2204 handle expansion of truth-and/or-if cases.
2205 (bind_expr_find_in_subtree): New, checking-only.
2206 (coro_body_contains_bind_expr_p): New, checking-only.
2207 (morph_fn_to_coro): Ensure that we have a top level bind
2210 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
2212 PR translation/94698
2213 * class.c (check_field_decls): Change "define" to "declare" in
2214 -Weffc++ diagnostics.
2216 2020-04-22 Patrick Palka <ppalka@redhat.com>
2220 * constraint.cc (satisfy_declaration_constraints): If the inherited
2221 constructor points to an instantiation of a constructor template,
2222 remember and use its attached template arguments.
2224 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
2226 PR translation/94698
2227 * class.c (check_field_decls): Change "override" to "define" in
2228 -Weffc++ diagnostics.
2230 2020-04-22 Iain Sandoe <iain@sandoe.co.uk>
2233 * coroutines.cc (struct param_info): Add a field to note that
2234 the param is 'this'.
2235 (morph_fn_to_coro): Convert this to a reference before using it
2236 in the promise parameter preview.
2238 2020-04-22 Jason Merrill <jason@redhat.com>
2241 * pt.c (register_parameter_specializations): If the instantiation is
2242 still a parameter pack, don't wrap it in a NONTYPE_ARGUMENT_PACK.
2243 (tsubst_pack_expansion, tsubst_expr): Adjust.
2245 2020-04-22 Martin Sebor <msebor@redhat.com>
2246 Jason Merrill <jason@redhat.com>
2249 * decl.c (reshape_init_array_1): Avoid stripping redundant trailing
2250 zero initializers...
2251 * mangle.c (write_expression): ...and handle them here even for
2252 pointers to members by calling zero_init_expr_p.
2253 * cp-tree.h (zero_init_expr_p): Declare.
2254 * tree.c (zero_init_expr_p): Define.
2255 (type_initializer_zero_p): Remove.
2256 * pt.c (tparm_obj_values): New hash_map.
2257 (get_template_parm_object): Store to it.
2258 (tparm_object_argument): New.
2260 2020-04-22 Patrick Palka <ppalka@redhat.com>
2263 * constraint.cc (diagnose_valid_expression): Check convert_to_void here
2264 as well as in tsubst_valid_expression_requirement.
2266 2020-04-21 Patrick Palka <ppalka@redhat.com>
2269 * constraint.cc (satisfy_declaration_constraints): Don't strip the
2270 inherited constructor if it already has template information.
2273 * pt.c (any_template_parm_r) <case IDENTIFIER_NODE>: New case. If this
2274 is a conversion operator, visit its TREE_TYPE.
2276 2020-04-21 Nathan Sidwell <nathan@acm.org>
2278 * pt.c (tsubst_copy_and_build) [POINTER_PLUS_EXPR]: Check for
2281 2020-04-21 Iain Sandoe <iain@sandoe.co.uk>
2284 * coroutines.cc (morph_fn_to_coro): Simplify return
2287 2020-04-17 Marek Polacek <polacek@redhat.com>
2290 * constexpr.c (cxx_eval_outermost_constant_expr): Return when T is
2291 a BRACE_ENCLOSED_INITIALIZER_P.
2292 (is_nondependent_constant_expression): Don't check
2293 BRACE_ENCLOSED_INITIALIZER_P.
2294 (is_nondependent_static_init_expression): Likewise.
2296 2020-04-20 Patrick Palka <ppalka@redhat.com>
2299 * cp-tree.h (lss_policy::lss_nop): New enumerator.
2300 * pt.c (local_specialization_stack::local_specialization_stack): Handle
2302 (local_specialization_stack::~local_specialization_stack): Likewise.
2303 (tsubst_pack_expansion): Use a local_specialization_stack instead of
2304 manually saving and restoring local_specializations. Conditionally
2305 replace local_specializations sooner, before the handling of the
2306 unsubstituted_packs case.
2308 2020-04-20 Marek Polacek <polacek@redhat.com>
2310 PR c++/94505 - bogus -Wparentheses warning with fold-expression.
2311 * pt.c (fold_expression): Add warning_sentinel for -Wparentheses
2312 before calling build_x_binary_op.
2314 2020-04-20 Marek Polacek <polacek@redhat.com>
2316 * coroutines.cc (captures_temporary): Don't assign the result of
2317 STRIP_NOPS to the same variable.
2319 2020-04-20 Nathan Sidwell <nathan@acm.org>
2321 PR c++/94454 - tpl-tpl-parms are not canonicalizable types
2322 * pt.c (canonical_type_parameter): Assert not a tpl-tpl-parm.
2323 (process_template_parm): tpl-tpl-parms are structural.
2324 (rewrite_template_parm): Propagate structuralness.
2326 PR c++/94454 - Expr pack expansion equality
2327 * tree.c (cp_tree_equal) [TEMPLATE_ID_EXPR, default]: Refactor.
2328 [EXPR_PACK_EXPANSION]: Add.
2330 PR c++/94454 Template Argument Hashing
2331 * pt.c (iterative_hash_template_arg): Strip nodes as
2332 template_args_equal does.
2333 [ARGUMENT_PACK_SELECT, TREE_VEC, CONSTRUCTOR]: Refactor.
2334 [node_class:TEMPLATE_TEMPLATE_PARM]: Hash by level & index.
2335 [node_class:default]: Refactor.
2337 2020-04-18 Patrick Palka <ppalka@redhat.com>
2340 * tree.c (cp_tree_equal) <case PARM_DECL>: Ignore
2341 comparing_specializations if the parameters' contexts are identical.
2344 * pt.c (splice_late_return_type): Propagate cv-qualifiers and
2345 PLACEHOLDER_TYPE_CONSTRAINTS from the original auto node to the new one.
2347 2020-04-17 Patrick Palka <ppalka@redhat.com>
2350 * lambda.c (lambda_capture_field_type): Avoid doing auto deduction if
2351 the explicit initializer has parameter packs.
2354 * parser.c (cp_parser_check_template_parameters): Before issuing a hard
2355 error, first try simulating an error instead.
2357 2020-04-17 Jakub Jelinek <jakub@redhat.com>
2360 * call.c (build_conditional_expr_1): Remove redundant assignment to
2363 2020-04-16 Patrick Palka <ppalka@redhat.com>
2366 * cvt.c (ocp_convert): If the result of scalar_constant_value is
2367 erroneous, ignore it and use the original expression.
2369 2020-04-16 Jakub Jelinek <jakub@redhat.com>
2372 * parser.c (cp_parser_simple_declaration): Fix up a pasto in
2375 2020-04-15 Jakub Jelinek <jakub@redhat.com>
2378 * parser.c (cp_parser_pragma) <case PRAGMA_OMP_REQUIRES>: Reject
2379 requires directive when not at file or namespace scope.
2381 2020-04-14 Iain Sandoe <iain@sandoe.co.uk>
2384 * coroutines.cc (build_actor_fn): Check that the target can
2385 support the resume tailcall before mandating it.
2387 2020-04-14 Patrick Palka <ppalka@redhat.com>
2390 * cxx-pretty-print.c (cxx_pretty_printer:simple_type_specifier)
2391 <case DECLTYPE_TYPE>: Handle DECLTYPE_TYPE here instead of ...
2392 (pp_cxx_type_specifier_seq) <case DECLTYPE_TYPE>: ... here.
2393 (cxx_pretty_printer::direct_abstract_declarator) <case DECLTYPE_TYPE>:
2397 * constexpr.c (replace_result_decl_data): New struct.
2398 (replace_result_decl_data_r): New function.
2399 (replace_result_decl): New function.
2400 (cxx_eval_call_expression): Use it.
2401 * tree.c (build_aggr_init_expr): Set the location of the AGGR_INIT_EXPR
2402 to that of its initializer.
2404 2020-04-13 Marek Polacek <polacek@redhat.com>
2407 * name-lookup.c (check_local_shadow): Add an inform call.
2409 2020-04-13 Patrick Palka <ppalka@redhat.com>
2412 * error.c (dump_scope): Pass TFF_NO_FUNCTION_ARGUMENTS to
2413 dump_function_decl when printing a function template instantiation as a
2417 * constexpr.c (get_or_insert_ctor_field): Set default value of parameter
2419 (cxx_eval_bare_aggregate): Use get_or_insert_ctor_field instead of
2420 assuming the the next index belongs at the end of the new CONSTRUCTOR.
2421 (cxx_eval_store_expression): Revert PR c++/78572 fix.
2423 2020-04-13 Nathan Sidwell <nathan@acm.org>
2425 PR c++/94426 lambdas with internal linkage are different to no-linkage
2426 * decl2.c (determine_visibility): A lambda's visibility is
2427 affected by its extra scope.
2428 * pt.c (instantiate_decl): Determine var's visibility before
2429 instantiating its initializer.
2430 * tree.c (no_linkage_check): Revert code looking at visibility of
2431 lambda's extra scope.
2433 2020-04-10 Iain Sandoe <iain@sandoe.co.uk>
2436 * coroutines.cc (co_await_expander): Remove.
2437 (expand_one_await_expression): New.
2438 (process_one_statement): New.
2439 (await_statement_expander): New.
2440 (build_actor_fn): Revise to use per-statement expander.
2441 (struct susp_frame_data): Reorder and comment.
2442 (register_awaits): Factor code.
2443 (replace_statement_captures): New, factored from...
2444 (maybe_promote_captured_temps):.. here.
2445 (await_statement_walker): Revise to process per statement.
2446 (morph_fn_to_coro): Use revised susp_frame_data layout.
2448 2020-04-10 Marek Polacek <polacek@redhat.com>
2451 * method.c (constructible_expr): In C++20, try using parenthesized
2452 initialization of aggregates to determine the result of
2455 2020-04-10 Bin Cheng <bin.cheng@linux.alibaba.com>
2457 * coroutines.cc (co_await_expander): Simplify.
2459 2020-04-09 Jason Merrill <jason@redhat.com>
2462 * constexpr.c (cxx_eval_constant_expression) [VAR_DECL]: Look at
2463 ctx->object and ctx->global->values first.
2465 2020-04-09 Marek Polacek <polacek@redhat.com>
2468 * call.c (initialize_reference): If the reference binding failed, maybe
2469 try initializing from { }.
2470 * decl.c (grok_reference_init): For T& t(e), set
2471 LOOKUP_AGGREGATE_PAREN_INIT but don't build up a constructor yet.
2473 2020-04-08 Iain Sandoe <iain@sandoe.co.uk>
2474 Jun Ma <JunMa@linux.alibaba.com>
2476 * coroutines.cc (maybe_promote_captured_temps): Add a cleanup
2477 expression, if needed, to any call from which we promoted
2478 temporaries captured by reference.
2480 2020-04-08 Marek Polacek <polacek@redhat.com>
2482 PR c++/94507 - ICE-on-invalid with lambda template.
2483 * pt.c (tsubst_lambda_expr): Cope when tsubst_template_decl or
2484 tsubst_function_decl returns error_mark_node.
2486 2020-04-08 Martin Liska <mliska@suse.cz>
2489 * decl.c (duplicate_decls): Duplicate also DECL_IS_REPLACEABLE_OPERATOR.
2490 (cxx_init_decl_processing): Mark replaceable all implicitly defined
2493 2020-04-08 Patrick Palka <ppalka@redhat.com>
2495 Core issues 1001 and 1322
2497 * pt.c (rebuild_function_or_method_type): Split function out from ...
2498 (tsubst_function_type): ... here.
2499 (maybe_rebuild_function_decl_type): New function.
2500 (tsubst_function_decl): Use it.
2502 2020-04-08 Jakub Jelinek <jakub@redhat.com>
2505 * decl.c (begin_destructor_body): For CLASSTYPE_VBASECLASSES class
2506 dtors, if CLASSTYPE_PRIMARY_BINFO is non-NULL, but not BINFO_VIRTUAL_P,
2507 look at CLASSTYPE_PRIMARY_BINFO of its BINFO_TYPE if it is not
2508 BINFO_VIRTUAL_P, and so on.
2510 2020-04-08 Marek Polacek <polacek@redhat.com>
2512 PR c++/94478 - ICE with defaulted comparison operator
2513 * method.c (early_check_defaulted_comparison): Give an error when the
2516 2020-04-08 Tobias Burnus <tobias@codesourcery.com>
2519 * paser.c (cp_parser_oacc_declare): Add check that variables
2520 are declared in the same scope as the directive.
2522 2020-04-07 Jason Merrill <jason@redhat.com>
2525 * parser.c (cp_parser_requires_expression): Use tentative_firewall.
2528 * parser.c (cp_parser_placeholder_type_specifier): Use
2531 2020-04-07 Iain Sandoe <iain@sandoe.co.uk>
2533 * coroutines.cc (maybe_promote_captured_temps): Ensure that
2534 reference capture placeholder vars are properly declared.
2536 2020-04-07 Patrick Palka <ppalka@redhat.com>
2539 * tree.c (replace_placeholders): Look through all handled components,
2540 not just COMPONENT_REFs.
2541 * typeck2.c (process_init_constructor_array): Propagate
2542 CONSTRUCTOR_PLACEHOLDER_BOUNDARY up from each element initializer to
2543 the array initializer.
2545 2020-04-07 Jakub Jelinek <jakub@redhat.com>
2548 * parser.c (cp_parser_omp_parallel): Set OMP_PARALLEL_COMBINED
2549 if cp_parser_omp_master succeeded.
2551 2020-04-06 Jason Merrill <jason@redhat.com>
2554 * decl.c (duplicate_decls): Fix handling of DECL_HIDDEN_FRIEND_P.
2556 2020-04-04 Marek Polacek <polacek@redhat.com>
2557 Jason Merrill <jason@redhat.com>
2559 PR c++/94155 - crash in gimplifier with paren init of aggregates.
2560 * init.c (build_vec_init): Fill in indexes.
2562 2020-04-04 Jason Merrill <jason@redhat.com>
2565 * mangle.c (write_expression): Skip IMPLICIT_CONV_EXPR.
2567 2020-04-04 Patrick Palka <ppalka@redhat.com>
2571 * constexpr.c (struct constexpr_ctx): New field 'parent'.
2572 (cxx_eval_bare_aggregate): Propagate CONSTRUCTOR_PLACEHOLDER_BOUNDARY
2573 flag from the original constructor to the reduced constructor.
2574 (lookup_placeholder): Prefer to return the outermost matching object
2575 by recursively calling lookup_placeholder on the 'parent' context,
2576 but don't cross CONSTRUCTOR_PLACEHOLDER_BOUNDARY constructors.
2577 (cxx_eval_constant_expression): Link the 'ctx' context to the 'new_ctx'
2578 context via 'new_ctx.parent' when being expanded without an explicit
2579 target. Don't call replace_placeholders.
2580 (cxx_eval_outermost_constant_expr): Initialize 'ctx.parent' to NULL.
2584 * constexpr.c (get_or_insert_ctor_field): Split out (while adding
2585 support for VECTOR_TYPEs, and optimizations for the common case)
2587 (cxx_eval_store_expression): ... here. Rename local variable
2588 'changed_active_union_member_p' to 'activated_union_member_p'. Record
2589 the sequence of indexes into 'indexes' that yields the subobject we're
2590 assigning to. Record the integer offsets of the constructor indexes
2591 we're assigning through into 'index_pos_hints'. After evaluating the
2592 initializer of the store expression, recompute 'valp' using 'indexes'
2593 and using 'index_pos_hints' as hints.
2594 (cxx_eval_bare_aggregate): Tweak comments. Use get_or_insert_ctor_field
2595 to recompute the constructor_elt pointer we're assigning through after
2596 evaluating each initializer.
2598 2020-04-04 Jason Merrill <jason@redhat.com>
2601 * constraint.cc (tsubst_valid_expression_requirement): Call
2604 2020-04-04 Jason Merrill <jason@redhat.com>
2607 * constexpr.c (maybe_constant_value): Use break_out_target_exprs.
2608 * expr.c (mark_use) [VIEW_CONVERT_EXPR]: Don't wrap a TARGET_EXPR in
2611 2020-04-04 Jakub Jelinek <jakub@redhat.com>
2614 * parser.c (cp_parser_omp_for_loop): Use
2615 protected_set_expr_location_if_unset.
2616 * cp-gimplify.c (genericize_if_stmt, genericize_cp_loop): Likewise.
2619 * pt.c (tsubst_expr) <case OMP_MASTER>: Clear
2620 omp_parallel_combined_clauses.
2622 2020-04-03 Jason Merrill <jason@redhat.com>
2625 * pt.c (complex_pack_expansion_r): New.
2626 (complex_alias_template_p): Use it.
2628 2020-03-31 Jason Merrill <jason@redhat.com>
2631 * constexpr.c (cxx_eval_constant_expression) [TARGET_EXPR]: Call
2632 replace_placeholders.
2633 * typeck2.c (store_init_value): Fix arguments to
2634 fold_non_dependent_expr.
2636 2020-03-31 Jason Merrill <jason@redhat.com>
2638 * constexpr.c (cxx_eval_constant_expression) [TARGET_EXPR]: Use
2641 2020-03-30 Jason Merrill <jason@redhat.com>
2644 * tree.c (cp_tree_equal) [CALL_EXPR]: Compare KOENIG_LOOKUP_P.
2645 (called_fns_equal): Check DECL_CONTEXT.
2647 2020-03-30 Jakub Jelinek <jakub@redhat.com>
2650 * semantics.c (add_stmt): Only set STMT_IS_FULL_EXPR_P on trees with
2651 STATEMENT_CODE_P code.
2653 2020-03-28 Patrick Palka <ppalka@redhat.com>
2656 * parser.c (cp_parser_requires_clause_opt): Diagnose and recover from
2657 "requires {" when "requires requires {" was probably intended.
2660 * constraint.cc (tsubst_compound_requirement): Always suppress errors
2661 from type_deducible_p and expression_convertible_p, as they're not
2662 substitution errors.
2663 (diagnose_atomic_constraint) <case INTEGER_CST>: Remove this case so
2664 that we diagnose INTEGER_CST expressions of non-bool type via the
2666 * cp-gimplify.c (cp_genericize_r) <case REQUIRES_EXPR>: New case.
2667 * parser.c (cp_parser_requires_expression): Always parse the requirement
2668 body as if we're processing a template, by temporarily incrementing
2669 processing_template_decl. Afterwards, if we're not actually in a
2670 template context, perform semantic processing to diagnose any invalid
2671 types and expressions.
2672 * pt.c (tsubst_copy_and_build) <case REQUIRES_EXPR>: Remove dead code.
2673 * semantics.c (finish_static_assert): Explain an assertion failure
2674 when the condition is a REQUIRES_EXPR like we do when it is a concept
2677 * constraint.cc (diagnose_compound_requirement): When diagnosing a
2678 compound requirement, maybe replay the satisfaction failure, subject to
2679 the current diagnosis depth.
2681 * constraint.cc (finish_constraint_binary_op): Set the location of EXPR
2682 as well as its range, because build_x_binary_op doesn't always do so.
2683 (current_constraint_diagnosis_depth): New.
2684 (concepts_diagnostics_max_depth_exceeded_p): New.
2685 (collect_operands_of_disjunction): New.
2686 (satisfy_disjunction): When diagnosing a satisfaction failure, maybe
2687 replay each branch of the disjunction, subject to the current diagnosis
2689 (diagnose_valid_expression): When diagnosing a satisfaction failure,
2690 maybe replay the substitution error, subject to the current diagnosis
2692 (diagnose_valid_type): Likewise.
2693 (diagnose_nested_requiremnet): Likewise.
2694 (diagnosing_failed_constraint::diagnosing_failed_constraint): Increment
2695 current_constraint_diagnosis_depth when diagnosing.
2696 (diagnosing_failed_constraint::~diagnosing_failed_constraint): Decrement
2697 current_constraint_diagnosis_depth when diagnosing.
2698 (diagnosing_failed_constraint::replay_errors_p): New static member
2700 (diagnose_constraints): Don't diagnose if concepts_diagnostics_max_depth
2701 is 0. Emit a one-off note to increase -fconcepts-diagnostics-depth if
2702 the limit was exceeded.
2703 * cp-tree.h (diagnosing_failed_constraint::replay_errors_p): Declare.
2705 2020-03-27 Nathan Sidwell <nathan@acm.org>
2708 * name-lookup.c (do_pushdecl): Look through cleanp levels.
2710 2020-03-27 Martin Sebor <msebor@redhat.com>
2715 * cp-tree.h (most_specialized_partial_spec): Declare.
2716 * parser.c (cp_parser_elaborated_type_specifier): Distinguish alias
2718 (specialization_of): New function.
2719 (cp_parser_check_class_key): Move code...
2720 (class_decl_loc_t::add): ...to here. Add parameters. Avoid issuing
2721 -Wredundant-tags on first-time declarations in other declarators.
2722 Correct handling of template specializations.
2723 (class_decl_loc_t::diag_mismatched_tags): Also expect to be called
2724 when -Wredundant-tags is enabled. Use primary template or partial
2725 specialization as the guide for uses of implicit instantiations.
2726 * pt.c (most_specialized_partial_spec): Declare extern.
2728 2020-03-27 Nathan Sidwell <nathan@acm.org>
2731 * name-lookup.c (push_namespace): Triage ambiguous lookups that
2734 2020-03-27 Jakub Jelinek <jakub@redhat.com>
2737 * call.c (set_flags_from_callee): Don't update
2738 cp_function_chain->can_throw or current_function_returns_abnormally
2739 if cp_unevaluated_operand.
2742 * cvt.c (ocp_convert): Handle COMPOUND_EXPR by recursion on the second
2743 operand and creating a new COMPOUND_EXPR if anything changed.
2745 2020-03-26 Marek Polacek <polacek@redhat.com>
2747 PR c++/94336 - template keyword accepted before destructor names.
2748 * parser.c (cp_parser_unqualified_id): Give an error when 'template'
2749 is followed by a destructor name.
2751 2020-03-27 Patrick Palka <ppalka@redhat.com>
2753 * decl.c (compute_array_index_type_loc): Remove redundant
2754 type_dependent_expression_p check that is subsumed by
2755 value_dependent_expression_p.
2756 * decl2.c (is_late_template_attribute): Likewise.
2757 * pt.c (uses_template_parms): Likewise.
2758 (dependent_template_arg_p): Likewise.
2760 2020-03-26 Marek Polacek <polacek@redhat.com>
2763 PR c++/94057 - template keyword in a typename-specifier.
2764 * parser.c (check_template_keyword_in_nested_name_spec): New.
2765 (cp_parser_nested_name_specifier_opt): Implement DR1710, optional
2766 'template'. Call check_template_keyword_in_nested_name_spec.
2767 (cp_parser_simple_type_specifier): Assume that a <
2768 following a qualified-id in a typename-specifier begins
2769 a template argument list.
2771 2020-03-26 Iain Sandoe <iain@sandoe.co.uk>
2773 * coroutines.cc (coro_init_identifiers): Initialize an identifier
2774 for the cororoutine handle 'address' method name.
2775 (struct coro_aw_data): Add fields to cover the continuations.
2776 (co_await_expander): Determine the kind of await_suspend in use.
2777 If we have the case that returns a continuation handle, then save
2778 this and make the target for 'scope exit without cleanup' be the
2779 continuation resume label.
2780 (expand_co_awaits): Remove.
2781 (struct suspend_point_info): Remove fields that kept the returned
2782 await_suspend handle type.
2783 (transform_await_expr): Remove code tracking continuation handles.
2784 (build_actor_fn): Add the continuation handle as an actor-function
2785 scope var. Build the symmetric transfer continuation point. Call
2786 the tree walk for co_await expansion directly, rather than via a
2787 trivial shim function.
2788 (register_await_info): Remove fields tracking continuation handles.
2789 (get_await_suspend_return_type): Remove.
2790 (register_awaits): Remove code tracking continuation handles.
2791 (morph_fn_to_coro): Remove code tracking continuation handles.
2793 2020-03-26 Iain Sandoe <iain@sandoe.co.uk>
2795 * coroutines.cc (co_await_expander): If we are expanding the
2796 initial await expression, set a boolean flag to show that we
2797 have now reached the initial await_resume() method call.
2798 (expand_co_awaits): Handle the 'initial await resume called' flag.
2799 (build_actor_fn): Insert the initial await expression into the
2800 start of the user-authored function-body. Handle the 'initial await
2801 resume called' flag.
2802 (morph_fn_to_coro): Initialise the 'initial await resume called'
2803 flag. Modify the unhandled exception catch clause to recognise
2804 exceptions that occur before the initial await_resume() and re-
2807 2020-03-26 Jakub Jelinek <jakub@redhat.com>
2810 * class.c (user_provided_p): Use STRIP_TEMPLATE instead of returning
2811 true for all TEMPLATE_DECLs.
2814 * cp-gimplify.c (cp_genericize_r): Handle STATEMENT_LIST.
2816 2020-03-25 Patrick Palka <ppalka@redhat.com>
2819 * parser.c (cp_parser_selection_statement) <case RID_IF>: Invalidate the
2820 current condition chain when the if-statement has a non-empty
2823 2020-03-25 Iain Sandoe <iain@sandoe.co.uk>
2826 * coroutines.cc (captures_temporary): Fix a missing dereference.
2828 2020-03-24 Marek Polacek <polacek@redhat.com>
2830 PR c++/94190 - wrong no post-decrement operator error in template.
2831 * call.c (convert_like_real): Use convert_from_reference on the result.
2833 2020-03-24 Jason Merrill <jason@redhat.com>
2836 * constraint.cc (constraint_satisfaction_value): Repeat noisily on
2838 (tsubst_nested_requirement): Likewise.
2839 (get_constraint_error_location): Allow missing context.
2840 (diagnose_atomic_constraint): Diagnose non-bool constraint here.
2841 (satisfy_atom): Not here. Only diagnose non-constant when noisy.
2843 2020-03-24 Jason Merrill <jason@redhat.com>
2845 * pt.c (any_template_parm_r): Look into the type of a non-type
2848 2020-03-24 Jason Merrill <jason@redhat.com>
2850 * cp-tree.h (cp_expr): When constructing from an expr and a
2851 location, call protected_set_expr_location.
2853 2020-03-23 Patrick Palka <ppalka@redhat.com>
2856 * except.c (maybe_noexcept_warning): Add TODO.
2857 * method.c (walk_field_subobs): Pass tf_none to expr_noexcept_p.
2859 2020-03-23 nathans <nathan@acm.org>
2862 * tree.c (cp_tree_equal) [SIZEOF_EXPR]: Detect argument pack
2865 2020-03-21 Patrick Palka <ppalka@redhat.com>
2868 * constexpr.c (reduced_constant_expression_p) [CONSTRUCTOR]: Properly
2869 handle unions without an initializer.
2870 (cxx_eval_component_reference): Emit a different diagnostic when the
2871 constructor element corresponding to a union member is NULL.
2872 (cxx_eval_bare_aggregate): When constructing a union, always set the
2873 active union member before evaluating the initializer. Relax assertion
2874 that verifies the index of the constructor element we're initializing
2875 hasn't been changed.
2876 (cxx_eval_store_expression): Diagnose changing the active union member
2877 while the union is in the process of being initialized. After setting
2878 an active union member, clear CONSTRUCTOR_NO_CLEARING on the underlying
2880 (cxx_eval_constant_expression) [PLACEHOLDER_EXPR]: Don't re-reduce a
2881 CONSTRUCTOR returned by lookup_placeholder.
2883 2020-03-20 Patrick Palka <ppalka@redhat.com>
2885 * cxx-pretty-print.c (pp_cxx_parameter_mapping): Make extern. Move
2886 the "[with ]" bits to here from ...
2887 (pp_cxx_atomic_constraint): ... here.
2888 * cxx-pretty-print.h (pp_cxx_parameter_mapping): Declare.
2889 * error.c (rebuild_concept_check): Delete.
2890 (print_concept_check_info): Print the dependent form of the constraint and the
2891 preferably substituted parameter mapping alongside it.
2893 2020-03-19 Jason Merrill <jason@redhat.com>
2896 * cp-gimplify.c (simple_empty_class_p): Look through
2897 SIMPLE_TARGET_EXPR_P.
2898 (cp_gimplify_expr) [MODIFY_EXPR]: Likewise.
2899 [RETURN_EXPR]: Avoid producing 'return *retval;'.
2900 * call.c (build_call_a): Strip TARGET_EXPR from empty class arg.
2901 * cp-tree.h (SIMPLE_TARGET_EXPR_P): Check that TARGET_EXPR_INITIAL
2904 2020-03-19 Jakub Jelinek <jakub@redhat.com>
2907 * parser.c (cp_parser_omp_var_list_no_open): Call process_outer_var_ref
2908 on outer_automatic_var_p decls.
2909 * cp-gimplify.c (cxx_omp_disregard_value_expr): Return true also for
2910 capture proxy decls.
2912 2020-03-18 Nathan Sidwell <nathan@acm.org>
2914 PR c++/94147 - mangling of lambdas assigned to globals
2915 * parser.c (cp_parser_init_declarator): Namespace-scope variables
2916 provide a lambda scope.
2917 * tree.c (no_linkage_check): Lambdas with a variable for extra
2918 scope have a linkage from the variable.
2920 2020-03-18 Jakub Jelinek <jakub@redhat.com>
2922 * constraint.cc (resolve_function_concept_check, subsumes_constraints,
2923 strictly_subsumes): Fix up duplicated word issue in a comment.
2924 * coroutines.cc (build_init_or_final_await, captures_temporary):
2926 * logic.cc (dnf_size_r, cnf_size_r): Likewise.
2927 * pt.c (append_type_to_template_for_access_check): Likewise.
2930 * decl.c (grokfndecl): Restore old diagnostics about deduction
2931 guide declared in different scope if in_namespace is NULL_TREE.
2933 2020-03-17 Jakub Jelinek <jakub@redhat.com>
2936 * parser.c (cp_parser_enum_specifier): Use temp_override for
2937 parser->colon_corrects_to_scope_p, replace goto out with return.
2938 If scoped enum or enum with underlying type is not followed by
2939 { or ;, call cp_parser_commit_to_tentative_parse before calling
2940 cp_parser_error and make sure to return error_mark_node instead of
2941 NULL_TREE. Formatting fixes.
2943 2020-03-17 Ville Voutilainen <ville.voutilainen@gmail.com>
2946 * method.c (assignable_expr): Use cp_unevaluated.
2947 (is_xible_helper): Push a non-deferred access check for
2948 the stub objects created by assignable_expr and constructible_expr.
2950 2020-03-17 Jakub Jelinek <jakub@redhat.com>
2952 * pt.c (tsubst): Fix up duplicated word issue in a diagnostic message.
2953 (lookup_template_class_1, tsubst_expr): Fix up duplicated word issue
2955 * parser.c (cp_parser_statement, cp_parser_linkage_specification,
2956 cp_parser_placeholder_type_specifier,
2957 cp_parser_constraint_requires_parens): Likewise.
2958 * name-lookup.c (suggest_alternative_in_explicit_scope): Likewise.
2960 2020-03-15 Iain Sandoe <iain@sandoe.co.uk>
2962 * coroutines.cc (co_await_expander): Fix indentation.
2964 2020-03-14 Jason Merrill <jason@redhat.com>
2967 * pt.c (process_partial_specialization): Error rather than crash on
2968 extra pack expansion.
2970 2020-03-14 Jason Merrill <jason@redhat.com>
2973 * pt.c (find_parameter_packs_r): [DECL_EXPR]: Walk
2974 DECL_ORIGINAL_TYPE of a typedef.
2976 2020-03-14 Jason Merrill <jason@redhat.com>
2979 * pt.c (build_deduction_guide): Clear cp_unevaluated_operand for
2980 substituting DECL_ARGUMENTS.
2982 2020-03-14 Jakub Jelinek <jakub@redhat.com>
2984 * logic.cc (formula::formula): Change "a an" to "an" in a comment.
2985 * parser.c (cp_debug_parser): Change "a an" to "an" in a string
2988 2020-03-13 Patrick Palka <ppalka@redhat.com>
2991 * call.c (build_over_call): Use a warning_sentinel to disable
2992 warn_deprecated_decl before calling build_addr_func.
2994 2020-03-12 Jakub Jelinek <jakub@redhat.com>
2997 * decl.c (reshape_init_array_1): Don't unshare constructor if there
2998 aren't any trailing zero elts, otherwise only unshare the first
3001 2020-03-11 Jason Merrill <jason@redhat.com>
3004 * constraint.cc (tsubst_parameter_mapping): Canonicalize type
3007 2020-03-11 Marek Polacek <polacek@redhat.com>
3008 Jason Merrill <jason@redhat.com>
3010 PR c++/94074 - wrong modifying const object error for COMPONENT_REF.
3011 * constexpr.c (cref_has_const_field): New function.
3012 (modifying_const_object_p): Consider a COMPONENT_REF
3013 const only if any of its fields are const.
3014 (cxx_eval_store_expression): Mark a CONSTRUCTOR of a const type
3015 as readonly after its initialization has been done.
3017 2020-03-10 Marek Polacek <polacek@redhat.com>
3019 PR c++/94124 - wrong conversion error with non-viable overload.
3020 * decl.c (reshape_init_array_1): Unshare a constructor if we
3021 stripped trailing zero-initializers.
3023 2020-03-10 Jason Merrill <jason@redhat.com>
3026 * pt.c (maybe_instantiate_noexcept): Always update clones.
3028 2020-03-10 Jason Merrill <jason@redhat.com>
3031 * pt.c (maybe_aggr_guide): Check BRACE_ENCLOSED_INITIALIZER_P.
3033 2020-03-10 Jason Merrill <jason@redhat.com>
3039 * cp-gimplify.c (cp_gimplify_init_expr): Partially revert patch for
3040 66139: Don't split_nonconstant_init. Remove pre_p parameter.
3042 2020-03-09 Marek Polacek <polacek@redhat.com>
3044 PR c++/92031 - bogus taking address of rvalue error.
3045 PR c++/91465 - ICE with template codes in check_narrowing.
3046 PR c++/93870 - wrong error when converting template non-type arg.
3047 PR c++/94068 - ICE with template codes in check_narrowing.
3048 * call.c (convert_like_real): Return IMPLICIT_CONV_EXPR
3049 in a template when not ck_identity and we're dealing with a class.
3050 (convert_like_real) <case ck_ref_bind>: Return IMPLICIT_CONV_EXPR
3051 in a template if we need a temporary.
3052 * decl.c (compute_array_index_type_loc): Remove
3053 instantiate_non_dependent_expr_sfinae call. Call
3054 fold_non_dependent_expr instead of maybe_constant_value.
3055 (build_explicit_specifier): Don't instantiate or create a sentinel
3056 before converting the expression.
3057 * except.c (build_noexcept_spec): Likewise.
3058 * pt.c (convert_nontype_argument): Don't build IMPLICIT_CONV_EXPR.
3059 Set IMPLICIT_CONV_EXPR_NONTYPE_ARG if that's what
3060 build_converted_constant_expr returned.
3061 * typeck2.c (check_narrowing): Call fold_non_dependent_expr instead
3062 of maybe_constant_value.
3064 2020-03-09 Jakub Jelinek <jakub@redhat.com>
3068 2019-10-11 Paolo Carlini <paolo.carlini@oracle.com>
3070 * constexpr.c (cxx_eval_constant_expression): Do not handle
3071 RROTATE_EXPR and LROTATE_EXPR.
3073 2020-03-09 Marek Polacek <polacek@redhat.com>
3075 PR c++/94050 - ABI issue with alignas on armv7hl.
3076 * class.c (layout_class_type): Don't replace a class's
3077 CLASSTYPE_AS_BASE if their TYPE_USER_ALIGN don't match.
3079 2020-03-09 Bin Cheng <bin.cheng@linux.alibaba.com>
3081 * coroutines.cc (build_actor_fn): Factor out code inserting the
3082 default return_void call to...
3083 (morph_fn_to_coro): ...here, also hoist local var declarations.
3085 2020-03-08 Patrick Palka <ppalka@redhat.com>
3088 * call.c (convert_like_real): Check complain before emitting an error
3089 about binding a bit-field to a reference.
3091 * cxx-pretty-print.c (cxx_pretty_printer::simple_type_specifier)
3092 [TYPENAME_TYPE]: Print the TYPENAME_TYPE_FULLNAME instead of the
3095 2020-03-06 Nathan Sidwell <nathan@acm.org>
3098 * mangle.c (find_substitution): Don't call same_type_p on template
3099 args that cannot match.
3101 2020-03-04 Martin Sebor <msebor@redhat.com>
3104 * tree.c (type_initializer_zero_p): Fail for structs initialized
3107 2020-03-04 Jason Merrill <jason@redhat.com>
3110 * init.c (perform_member_init): Don't do aggregate initialization of
3112 * constexpr.c (cx_check_missing_mem_inits): Don't enforce
3113 initialization of empty field.
3115 2020-03-04 Martin Liska <mliska@suse.cz>
3117 * method.c: Wrap array in ctor with braces in order
3118 to silent clang warnings.
3120 2020-03-03 Jason Merrill <jason@redhat.com>
3121 Marek Polacek <polacek@redhat.com>
3123 PR c++/90505 - mismatch in template argument deduction.
3124 * pt.c (tsubst): Don't reduce the template level of template
3125 parameters when tf_partial.
3127 2020-03-03 Jakub Jelinek <jakub@redhat.com>
3130 * constexpr.c (cxx_eval_constant_expression)
3131 <case TARGET_EXPR, case SAVE_EXPR>: Don't record anything if
3132 *non_constant_p is true.
3134 2020-03-03 Jun Ma <JunMa@linux.alibaba.com>
3136 * coroutines.cc (captures_temporary): Strip component_ref
3139 2020-03-03 Jun Ma <JunMa@linux.alibaba.com>
3141 * coroutines.cc (finish_co_await_expr): Build co_await_expr
3142 with unknown_type_node.
3143 (finish_co_yield_expr): Ditto.
3144 *pt.c (type_dependent_expression_p): Set co_await/yield_expr
3145 with unknown type as dependent.
3147 2020-03-02 Iain Sandoe <iain@sandoe.co.uk>
3149 * coroutines.cc (struct local_var_info): Adjust to remove the
3150 reference to the captured var, and just to note that this is a
3151 lambda capture proxy.
3152 (transform_local_var_uses): Handle lambda captures specially.
3153 (struct param_frame_data): Add a visited set.
3154 (register_param_uses): Also check for param uses in lambda
3156 (struct local_vars_frame_data): Remove captures list.
3157 (register_local_var_uses): Handle lambda capture proxies by
3158 noting and bypassing them.
3159 (morph_fn_to_coro): Update to remove lifetime extension of
3160 lambda capture-by-copy vars.
3162 2020-03-02 Iain Sandoe <iain@sandoe.co.uk>
3164 * coroutines.cc (build_co_await): Do not build frame
3165 awaitable proxy vars when the co_await expression is
3166 a function parameter or local var.
3167 (co_await_expander): Do not initialise a frame var with
3169 (transform_await_expr): Only substitute the awaitable
3170 frame var if it's needed.
3171 (register_awaits): Do not make frame copies for param
3172 or local vars that are awaitables.
3174 2020-02-28 Jason Merrill <jason@redhat.com>
3176 Implement P2092R0, Disambiguating Nested-Requirements
3177 * parser.c (cp_parser_requirement_parameter_list): Pass
3178 CP_PARSER_FLAGS_TYPENAME_OPTIONAL.
3180 * call.c (build_user_type_conversion_1): Don't look at the second
3181 conversion of a non-viable candidate.
3183 2020-02-28 Jakub Jelinek <jakub@redhat.com>
3185 P1937R2 - Fixing inconsistencies between const{expr,eval} functions
3186 * typeck.c (cp_build_addr_expr_1): Allow taking address of immediate
3187 functions in unevaluated contexts.
3189 2020-02-27 Nathan Sidwell <nathan@acm.org>
3192 * pt.c (template_args_equal): Pass ARGUMENT_PACKS through to
3194 * tree.c (cp_tree_equal): Compare ARGUMENT_PACKS here,
3195 * typeck.c (comptypes): Assert we don't get any argument packs.
3197 * class.c (adjust_clone_args): Correct arg-checking assert.
3198 * typeck.c (comptypes): Assert not nulls.
3200 2020-02-26 Marek Polacek <polacek@redhat.com>
3202 PR c++/93789 - ICE with invalid array bounds.
3203 * decl.c (compute_array_index_type_loc): Don't use the folded
3204 size when folding cleared TREE_CONSTANT.
3206 2020-02-26 Iain Sandoe <iain@sandoe.co.uk>
3208 * class.c (classtype_has_non_deleted_copy_ctor): New.
3209 * coroutines.cc (struct param_info): Keep track of params
3210 that are references, and cache the original type and whether
3211 the DTOR is trivial.
3212 (build_actor_fn): Handle param copies always, and adjust the
3213 handling for references.
3214 (register_param_uses): Only handle uses here.
3215 (classtype_has_non_deleted_copy_ctor): New.
3216 (morph_fn_to_coro): Adjust param copy handling to match n4849
3217 by reordering ahead of the promise CTOR and always making a
3218 frame copy, even if the param is unused in the coroutine body.
3219 * cp-tree.h (classtype_has_non_deleted_copy_ctor): New.
3221 2020-02-26 Patrick Palka <ppalka@redhat.com>
3223 * constraint.cc (finish_constraint_binary_op): Set expr's location range
3224 to the range of its operands.
3225 (satisfy_atom): Pass MAP instead of ARGS to diagnose_atomic_constraint.
3226 (diagnose_trait_expr): Take the instantiated parameter mapping MAP
3227 instead of the corresponding template arguments ARGS and adjust body
3229 (diagnose_requires_expr): Likewise.
3230 (diagnose_atomic_constraint): Likewise. When printing an atomic
3231 constraint expression, print the instantiated parameter mapping
3233 * cxx-pretty-print.cc (cxx_pretty_printer::expression)
3234 [NONTYPE_ARGUMENT_PACK]: Print braces around a NONTYPE_ARGUMENT_PACK.
3235 (cxx_pretty_printer::type_id): Handle TYPE_ARGUMENT_PACK.
3237 2020-02-26 Marek Polacek <polacek@redhat.com>
3239 PR c++/93676 - value-init crash in template.
3240 * init.c (build_new_1): Don't call build_vec_init in a template.
3242 2020-02-26 Marek Polacek <polacek@redhat.com>
3244 PR c++/93862 - ICE with static_cast when converting from int[].
3245 * call.c (reference_compatible_p): No longer static.
3246 * cp-tree.h (reference_compatible_p): Declare.
3247 * typeck.c (build_static_cast_1): Use reference_compatible_p instead
3248 of reference_related_p.
3250 2020-02-26 Marek Polacek <polacek@redhat.com>
3252 PR c++/93803 - ICE with constexpr init and [[no_unique_address]].
3253 * constexpr.c (reduced_constant_expression_p): Don't crash on a null
3256 2020-02-24 Martin Sebor <msebor@redhat.com>
3259 * parser.c (cp_parser_check_class_key): Avoid issuing -Wredundant-tags
3260 in shared C/C++ code in headers.
3261 Remove a duplicate hunk of code.
3263 2020-02-24 Marek Polacek <polacek@redhat.com>
3265 PR c++/93869 - ICE with -Wmismatched-tags.
3266 * parser.c (cp_parser_check_class_key): Check class_key earlier.
3268 2020-02-24 Marek Polacek <polacek@redhat.com>
3270 PR c++/93712 - ICE with ill-formed array list-initialization.
3271 * call.c (next_conversion): Return NULL for ck_aggr.
3272 (build_aggr_conv): Set u.expr instead of u.next.
3273 (build_array_conv): Likewise.
3274 (build_complex_conv): Likewise.
3275 (conv_get_original_expr): Handle ck_aggr.
3277 2020-02-24 Jakub Jelinek <jakub@redhat.com>
3279 P1937R2 - Fixing inconsistencies between const{expr,eval} functions
3280 * call.c (build_over_call): Don't evaluate immediate functions in
3281 unevaluated operands.
3283 2020-02-24 Jason Merrill <jason@redhat.com>
3285 P0780R2: Resolve lambda init-capture pack grammar.
3286 * parser.c (cp_parser_lambda_introducer): Expect &...x=y rather than
3289 2020-02-22 Marek Polacek <polacek@redhat.com>
3292 * decl.c (grokdeclarator): Use %qs in a diagnostic message.
3294 2020-02-21 Martin Sebor <msebor@redhat.com>
3296 PR gcov-profile/93753
3297 * class.c (check_flexarrays): Tighten up a test for potential members
3298 of anonymous structs or unions.
3300 2020-02-20 Martin Sebor <msebor@redhat.com>
3303 * parser.c (cp_parser_check_class_key): Only handle true C++ class-keys.
3305 2020-02-20 Martin Liska <mliska@suse.cz>
3307 PR translation/93841
3308 * config/or1k/or1k.opt: Remove superfluous word.
3309 * doc/invoke.texi: Likewise.
3311 2020-02-20 Martin Liska <mliska@suse.cz>
3313 PR translation/93838
3314 * parser.c (cp_parser_decl_specifier_seq): Remove trailing space.
3316 2020-02-19 Marek Polacek <polacek@redhat.com>
3318 PR c++/93169 - wrong-code with a non-constexpr constructor.
3319 * constexpr.c (cxx_eval_call_expression): Only set TREE_READONLY
3320 on constant CONSTRUCTORs.
3322 2020-02-15 Marek Polacek <polacek@redhat.com>
3324 PR c++/93710 - poor diagnostic for array initializer.
3325 * call.c (build_user_type_conversion_1): Use cp_expr_loc_or_input_loc
3328 2020-02-15 Jason Merrill <jason@redhat.com>
3331 * pt.c (any_template_parm_r): Look into lambda body.
3334 * pt.c (any_template_parm_r): Remove CONSTRUCTOR handling.
3336 2020-02-14 Jakub Jelinek <jakub@redhat.com>
3339 * class.c (enum_min_precision): Change prec type from int to int &.
3342 * cp-tree.h (enum cp_tree_index): Add CPTI_FALLBACK_DFLOAT32_TYPE,
3343 CPTI_FALLBACK_DFLOAT64_TYPE and CPTI_FALLBACK_DFLOAT128_TYPE.
3344 (fallback_dfloat32_type, fallback_dfloat64_type,
3345 fallback_dfloat128_type): Define.
3346 * mangle.c (write_builtin_type): Handle fallback_dfloat*_type like
3348 * rtti.c (emit_support_tinfos): Emit DFP typeinfos even when dfp
3349 is disabled for compatibility.
3351 2020-02-13 Jason Merrill <jason@redhat.com>
3354 * name-lookup.c (matching_fn_p): A function does not match a
3359 * tree.c (decl_linkage): Always lk_none for locals.
3361 2020-02-12 Jason Merrill <jason@redhat.com>
3365 * tree.c (cp_walk_subtrees): Walk CONSTRUCTOR types here.
3366 * pt.c (find_parameter_packs_r): Not here.
3368 2020-02-12 Iain Sandoe <iain@sandoe.co.uk>
3370 * coroutines.cc (build_actor_fn): Implement deallocation function
3371 selection per n4849, dcl.fct.def.coroutine bullet 12.
3372 (morph_fn_to_coro): Implement allocation function selection per
3373 n4849, dcl.fct.def.coroutine bullets 9 and 10.
3375 2020-02-12 Marek Polacek <polacek@redhat.com>
3377 PR c++/93684 - ICE-on-invalid with broken attribute.
3378 * parser.c (cp_parser_std_attribute): Peek a token first before
3381 2020-02-11 Jason Merrill <jason@redhat.com>
3384 * class.c (add_implicitly_declared_members): Use do_friend.
3385 * method.c (implicitly_declare_fn): Fix friend handling.
3386 (decl_remember_implicit_trigger_p): New.
3387 (synthesize_method): Use it.
3388 * decl2.c (mark_used): Use it.
3390 2020-02-11 Jason Merrill <jason@redhat.com>
3394 * constexpr.c (maybe_constant_value): Correct earlier change.
3395 (cxx_eval_binary_expression) [SPACESHIP_EXPR]: Pass lval through.
3396 * method.c (genericize_spaceship): Wrap result in TARGET_EXPR.
3398 2020-02-12 Patrick Palka <ppalka@redhat.com>
3402 * type-utils.h (find_type_usage): Refactor to take a tree * and to
3403 return a tree *, and update documentation accordingly.
3404 * pt.c (make_auto_1): Set AUTO_IS_DECLTYPE when building a
3405 decltype(auto) node.
3406 (make_constrained_decltype_auto): No need to explicitly set
3407 AUTO_IS_DECLTYPE anymore.
3408 (splice_late_return_type): Use find_type_usage to find and
3409 replace a possibly nested auto node instead of using is_auto.
3410 Check test for is_auto into an assert when deciding whether
3411 to late_return_type.
3412 (type_uses_auto): Adjust the call to find_type_usage.
3413 * parser.c (cp_parser_decltype): No need to explicitly set
3414 AUTO_IS_DECLTYPE anymore.
3416 * error.c (dump_decl) [CONCEPT_DECL]: Use dump_simple_decl.
3417 (dump_simple_decl): Handle standard concept definitions as well as
3418 variable concept definitions.
3420 2020-02-10 Jakub Jelinek <jakub@redhat.com>
3423 * error.c (dump_decl_name): Fix up last argument to strncmp.
3425 2020-02-10 Jason Merrill <jason@redhat.com>
3428 * tree.c (array_of_unknown_bound_p): New.
3429 * init.c (perform_member_init): Do nothing for flexible arrays.
3431 2020-02-09 Jakub Jelinek <jakub@redhat.com>
3434 * constexpr.c (cxx_eval_constant_expression): If obj is heap var with
3435 ARRAY_TYPE, use the element type. Punt if objtype after that is not
3438 2020-02-08 Jason Merrill <jason@redhat.com>
3441 * expr.c (fold_for_warn): Call maybe_constant_value.
3442 * constexpr.c (struct constexpr_ctx): Add uid_sensitive bit-field.
3443 (maybe_constant_value): Add uid_sensitive parm.
3444 (get_fundef_copy): Don't copy if it's true.
3445 (cxx_eval_call_expression): Don't instantiate if it's true.
3446 (cxx_eval_outermost_constant_expr): Likewise.
3449 * constexpr.c (maybe_constant_value): Don't unshare if the cached
3450 value is the same as the argument.
3452 * typeck.c (maybe_warn_about_returning_address_of_local): Add
3455 * typeck2.c (process_init_constructor): Also clear TREE_SIDE_EFFECTS
3458 2020-02-08 Jakub Jelinek <jakub@redhat.com>
3461 * constexpr.c (find_array_ctor_elt): If last element has no index,
3462 for flag_checking verify all elts have no index. If i is within the
3463 elts, return it directly, if it is right after the last elt, append
3464 if NULL index, otherwise force indexes on all elts.
3465 (cxx_eval_store_expression): Allow cep->index to be NULL.
3467 2020-02-07 Marek Polacek <polacek@redhat.com>
3469 PR c++/92947 - Paren init of aggregates in unevaluated context.
3470 * call.c (build_new_method_call_1): Don't check
3471 cp_unevaluated_operand. Check the return value of digest_init.
3473 2020-02-06 Jason Merrill <jason@redhat.com>
3476 * tree.c (cp_walk_subtrees): Walk into type template arguments.
3477 * cp-tree.h (TYPE_TEMPLATE_INFO_MAYBE_ALIAS): Use typedef_variant_p
3478 instead of TYPE_ALIAS_P.
3479 * pt.c (push_template_decl_real): Likewise.
3480 (find_parameter_packs_r): Likewise. Remove dead code.
3481 * error.c (find_typenames_r): Remove dead code.
3483 2020-02-06 Jason Merrill <jason@redhat.com>
3486 * parser.c (cp_parser_constraint_primary_expression): Do the main
3487 parse non-tentatively.
3489 2020-02-06 Marek Polacek <polacek@redhat.com>
3491 PR c++/93597 - ICE with lambda in operator function.
3492 * name-lookup.c (maybe_save_operator_binding): Check is_overloaded_fn.
3494 2020-02-05 Jason Merrill <jason@redhat.com>
3497 * pt.c (tsubst_decl) [PARM_DECL]: Check cp_unevaluated_operand in
3498 handling of TREE_CHAIN for empty pack.
3500 2020-02-05 Jakub Jelinek <jakub@redhat.com>
3503 * semantics.c (cp_build_vec_convert): Call decay_conversion on arg
3504 prior to passing it to c_build_vec_convert.
3506 2020-02-05 Marek Polacek <polacek@redhat.com>
3508 PR c++/93559 - ICE with CONSTRUCTOR flags verification.
3509 * decl.c (reshape_init_array_1): Don't reuse a CONSTRUCTOR with
3512 2020-02-05 Jason Merrill <jason@redhat.com>
3515 * decl.c (grokdeclarator): Reject field of current class type even
3518 2020-02-05 Bin Cheng <bin.cheng@linux.alibaba.com>
3520 * coroutines.cc (maybe_promote_captured_temps): Increase the index
3521 number for temporary variables' name.
3523 2020-02-05 Jun Ma <JunMa@linux.alibaba.com>
3525 * coroutines.cc (build_co_await): Call convert_from_reference
3526 to wrap co_await_expr with indirect_ref which avoid
3527 reference/non-reference type confusion.
3529 (co_await_expander): Sink to call_expr if await_resume
3530 is wrapped by indirect_ref.
3532 2020-02-04 Jason Merrill <jason@redhat.com>
3535 * constraint.cc (satisfy_declaration_constraints): Check return
3536 value of push_tinst_level.
3539 * constexpr.c (cxx_eval_array_reference): {}-initialize missing
3540 elements instead of value-initializing them.
3543 * init.c (perform_member_init): Simplify.
3544 * constexpr.c (cx_check_missing_mem_inits): Allow uninitialized
3546 (cxx_eval_vec_init_1): Handle CONSTRUCTOR.
3548 2020-02-04 Iain Sandoe <iain@sandoe.co.uk>
3550 * coroutines.cc (find_promise_type): Delete unused forward
3552 (struct coroutine_info): Add a bool for no promise type error.
3553 (coro_promise_type_found_p): Only emit the error for a missing
3554 promise once in each affected coroutine.
3556 2020-02-03 Jason Merrill <jason@redhat.com>
3559 * constexpr.c (cxx_eval_constant_expression) [PARM_DECL]: Don't
3560 defer loading the value of a reference.
3562 2020-02-03 Jason Merrill <jason@redhat.com>
3565 * constexpr.c (potential_constant_expression_1) [PARM_DECL]: Allow
3567 [COMPONENT_REF]: A member function reference doesn't use the object
3570 2020-02-03 Iain Sandoe <iain@sandoe.co.uk>
3573 * coroutines.cc (struct coroutine_info): Add a bool flag to note
3574 that we emitted an error for a bad function return type.
3575 (get_coroutine_info): Tolerate an unset info table in case of
3577 (find_coro_traits_template_decl): In case of error or if we didn't
3578 find a type template, note we emitted the error and suppress
3580 (find_coro_handle_template_decl): Likewise.
3581 (instantiate_coro_traits): Only check for error_mark_node in the
3582 return from lookup_qualified_name.
3583 (coro_promise_type_found_p): Reorder initialization so that we check
3584 for the traits and their usability before allocation of the info
3585 table. Check for a suitable return type and emit a diagnostic for
3586 here instead of relying on the lookup machinery. This allows the
3587 error to have a better location, and means we can suppress multiple
3589 (coro_function_valid_p): Re-check for a valid promise (and thus the
3590 traits) before proceeding. Tolerate missing info as a fatal error.
3592 2020-02-03 Jason Merrill <jason@redhat.com>
3595 * cp-gimplify.c (predeclare_vla): New.
3596 (cp_genericize_r) [NOP_EXPR]: Call it.
3598 2020-02-03 Jun Ma <JunMa@linux.alibaba.com>
3600 * coroutines.cc (transform_await_wrapper): Set actor funcion as
3601 new context of label_decl.
3602 (build_actor_fn): Fill new field of await_xform_data.
3604 2020-02-02 Marek Polacek <polacek@redhat.com>
3606 PR c++/93530 - ICE on invalid alignas in a template.
3607 * decl.c (grokdeclarator): Call cplus_decl_attributes instead of
3610 2020-01-31 Jason Merrill <jason@redhat.com>
3613 * semantics.c (process_outer_var_ref): Capture VLAs even in
3614 unevaluated context.
3617 * decl.c (reshape_init_array_1): Reuse a single CONSTRUCTOR with
3618 non-aggregate elements.
3619 (reshape_init_array): Add first_initializer_p parm.
3620 (reshape_init_r): Change first_initializer_p from bool to tree.
3621 (reshape_init): Pass init to it.
3624 * parser.c (cp_parser_initializer_list): Suppress location wrappers
3627 2020-01-29 Jason Merrill <jason@redhat.com>
3630 * pt.c (tsubst_copy_and_build) [EQ_EXPR]: Only suppress warnings if
3631 the expression was dependent before substitution.
3633 2020-01-30 Bin Cheng <bin.cheng@linux.alibaba.com>
3635 * coroutines.cc (act_des_fn): New.
3636 (morph_fn_to_coro): Call act_des_fn to build actor/destroy decls.
3637 Access promise via actor function's frame pointer argument.
3638 (build_actor_fn, build_destroy_fn): Use frame pointer argument.
3640 2020-01-30 Bin Cheng <bin.cheng@linux.alibaba.com>
3642 * coroutines.cc (co_await_expander): Handle type conversion case.
3644 2020-01-29 Jason Merrill <jason@redhat.com>
3649 * parser.c (cp_parser_type_specifier_seq): Don't parse attributes in
3650 a trailing return type.
3651 (cp_parser_lambda_declarator_opt): Parse C++11 attributes before
3654 2020-01-29 Marek Polacek <polacek@redhat.com>
3656 PR c++/91754 - Fix template arguments comparison with class NTTP.
3657 * pt.c (class_nttp_const_wrapper_p): New.
3658 (template_args_equal): See through class_nttp_const_wrapper_p
3661 2020-01-29 Marek Polacek <polacek@redhat.com>
3663 PR c++/92948 - Fix class NTTP with template arguments.
3664 * pt.c (convert_nontype_argument): Use IMPLICIT_CONV_EXPR when
3665 converting a value-dependent expression to a class type.
3666 (tsubst_copy) <case VIEW_CONVERT_EXPR>: Allow IMPLICIT_CONV_EXPR
3667 as the result of the tsubst_copy call.
3669 2020-01-29 Jakub Jelinek <jakub@redhat.com>
3672 * cp-gimplify.c (cxx_omp_predetermined_sharing): Return
3673 OMP_CLAUSE_DEFAULT_SHARED for typeinfo decls.
3675 2020-01-28 Jason Merrill <jason@redhat.com>
3678 * parser.c (cp_parser_lambda_expression): Clear in_discarded_stmt.
3682 * decl2.c (copy_linkage): Do copy DECL_ONE_ONLY and DECL_WEAK.
3685 * call.c (build_user_type_conversion_1): Allow a template conversion
3686 returning an rvalue reference to bind directly to an lvalue.
3689 * decl.c (grokdeclarator): Propagate eh spec from typedef.
3691 2020-01-28 Martin Liska <mliska@suse.cz>
3694 * pt.c (redeclare_class_template): Group couple of
3695 errors and inform messages with auto_diagnostic_group.
3697 2020-01-28 Martin Liska <mliska@suse.cz>
3700 * pt.c (redeclare_class_template): Use inform
3701 for the second location.
3703 2020-01-27 Jason Merrill <jason@redhat.com>
3706 * pt.c (tsubst_copy) [STRING_CST]: Don't use fold_convert.
3708 2020-01-27 Iain Sandoe <iain@sandoe.co.uk>
3711 * coroutines.cc (morph_fn_to_coro): Check the ramp return
3712 value when it is constructed from the 'get return object'.
3714 2020-01-27 Nathan Sidwell <nathan@acm.org>
3717 * name-lookup.c (is_ancestor): Allow CHILD to be a namespace alias.
3719 2020-01-26 Jason Merrill <jason@redhat.com>
3722 * except.c (maybe_noexcept_warning): Check DECL_IN_SYSTEM_HEADER and
3723 temporarily enable -Wsystem-headers. Change second warning to
3727 * semantics.c (finish_call_expr): Don't call
3728 instantiate_non_dependent_expr before warn_for_memset.
3730 2020-01-25 Marek Polacek <polacek@redhat.com>
3732 PR c++/93414 - poor diagnostic for dynamic_cast in constexpr context.
3733 * constexpr.c (cxx_eval_dynamic_cast_fn): Add a reference
3734 dynamic_cast diagnostic.
3736 2020-01-24 Jason Merrill <jason@redhat.com>
3738 PR c++/93400 - ICE with constrained friend.
3739 * constraint.cc (maybe_substitute_reqs_for): New.
3740 * decl.c (function_requirements_equivalent_p): Call it.
3741 * pt.c (tsubst_friend_function): Only substitute
3742 TEMPLATE_PARMS_CONSTRAINTS.
3743 (tsubst_template_parms): Copy constraints.
3745 2020-01-24 Jason Merrill <jason@redhat.com>
3747 PR c++/93279 - ICE with lambda in member operator.
3748 * name-lookup.c (maybe_save_operator_binding): Don't remember
3749 class-scope bindings.
3751 2020-01-24 Jason Merrill <jason@redhat.com>
3753 PR c++/93377 - ICE with member alias in constraint.
3754 * pt.c (any_template_parm_r): Look at template arguments for all
3755 aliases, not only alias templates.
3757 2020-01-24 Marek Polacek <polacek@redhat.com>
3759 PR c++/93299 - ICE in tsubst_copy with parenthesized expression.
3760 * pt.c (tsubst_copy): Handle a REF_PARENTHESIZED_P VIEW_CONVERT_EXPR.
3762 2020-01-24 Jason Merrill <jason@redhat.com>
3764 PR c++/92852 - ICE with generic lambda and reference var.
3765 * constexpr.c (maybe_constant_value): Likewise.
3767 2020-01-23 Paolo Carlini <paolo.carlini@oracle.com>
3770 * parser.c (cp_parser_nested_name_specifier_opt): Properly
3771 diagnose concept-ids.
3773 2020-01-23 Jason Merrill <jason@redhat.com>
3775 PR c++/93331 - ICE with __builtin_strchr.
3776 * constexpr.c (cxx_eval_builtin_function_call): Use the original
3777 argument if we didn't manage to extract a STRING_CST.
3779 PR c++/93345 - ICE with defaulted dtor and template.
3781 * decl.c (cxx_maybe_build_cleanup): Don't try to set
3782 throwing_cleanup in a template.
3784 2020-01-22 Marek Polacek <polacek@redhat.com>
3786 PR c++/92907 - noexcept does not consider "const" in member functions.
3787 * g++.dg/cpp0x/noexcept56.C: New test.
3789 2020-01-22 Marek Polacek <polacek@redhat.com>
3791 PR c++/93324 - ICE with -Wall on constexpr if.
3792 * semantics.c (is_std_constant_evaluated_p): Check fndecl.
3794 2020-01-22 Patrick Palka <ppalka@redhat.com>
3796 * constraint.cc (get_mapped_args): Avoid using auto_vec
3797 as a vector element. Release the vectors inside the lists
3799 * parser.c (cp_literal_operator_id): Free the buffer.
3801 2020-01-22 Jun Ma <JunMa@linux.alibaba.com>
3803 * coroutines.cc (finish_co_await_expr): Add error check on return
3804 value of build_co_await.
3805 (finish_co_yield_expr,): Ditto.
3807 2020-01-22 Jun Ma <JunMa@linux.alibaba.com>
3809 * coroutines.cc (lookup_awaitable_member): Lookup an awaitable member.
3810 (lookup_promise_method): Emit diagnostic when get NULL_TREE back only.
3811 (build_co_await): Use lookup_awaitable_member instead of lookup_member.
3813 2020-01-21 Jason Merrill <jason@redhat.com>
3815 PR c++/60855 - ICE with sizeof VLA capture.
3816 * lambda.c (is_lambda_ignored_entity): Don't look past VLA capture.
3818 PR c++/90732 - ICE with VLA capture and generic lambda.
3819 * pt.c (tsubst_lambda_expr): Repeat add_capture for VLAs.
3821 2020-01-21 Iain Sandoe <iain@sandoe.co.uk>
3822 Bin Cheng <bin.cheng@linux.alibaba.com>
3824 * coroutines.cc (coro_promise_type_found_p): Check for NULL return
3825 from complete_type_or_else.
3826 (register_param_uses): Likewise.
3827 (build_co_await): Do not try to use complete_type_or_else for void
3828 types, otherwise for incomplete types, check for NULL return from
3829 complete_type_or_else.
3831 2020-01-21 Jason Merrill <jason@redhat.com>
3833 PR c++/91476 - anon-namespace reference temp clash between TUs.
3834 * decl2.c (copy_linkage): Factor out of get_guard.
3835 * call.c (make_temporary_var_for_ref_to_temp): Use it.
3836 * decl.c (cp_finish_decomp): Use it.
3837 (cp_finish_decl): determine_visibility sooner.
3839 2020-01-21 Bin Cheng <bin.cheng@linux.alibaba.com>
3841 * coroutines.cc (finish_co_await_expr): Set return value flag.
3842 (finish_co_yield_expr, morph_fn_to_coro): Ditto.
3844 2020-01-19 Jason Merrill <jason@redhat.com>
3846 PR c++/33799 - destroy return value, take 2.
3847 * cp-tree.h (current_retval_sentinel): New macro.
3848 (struct language_function): Add throwing_cleanup bitfield.
3849 * decl.c (cxx_maybe_build_cleanup): Set it.
3850 * except.c (maybe_set_retval_sentinel)
3851 (maybe_splice_retval_cleanup): New functions.
3852 * parser.c (cp_parser_compound_statement): Call
3853 maybe_splice_retval_cleanup.
3854 * typeck.c (check_return_expr): Call maybe_set_retval_sentinel.
3856 * parser.c (cp_parser_lambda_body): Use cp_parser_function_body.
3858 2020-01-18 Jakub Jelinek <jakub@redhat.com>
3860 * coroutines.cc (get_fn_local_identifier): Fix NO_DOT_IN_LABEL
3861 but non-NO_DOLLAR_IN_LABEL case build.
3863 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
3865 * Make-lang.in: Add coroutines.o.
3866 * cp-tree.h (lang_decl-fn): coroutine_p, new bit.
3867 (DECL_COROUTINE_P): New.
3868 * lex.c (init_reswords): Enable keywords when the coroutine flag
3870 * operators.def (co_await): New operator.
3871 * call.c (add_builtin_candidates): Handle CO_AWAIT_EXPR.
3872 (op_error): Likewise.
3873 (build_new_op_1): Likewise.
3874 (build_new_function_call): Validate coroutine builtin arguments.
3875 * constexpr.c (potential_constant_expression_1): Handle
3876 CO_AWAIT_EXPR, CO_YIELD_EXPR, CO_RETURN_EXPR.
3877 * coroutines.cc: New file.
3878 * cp-objcp-common.c (cp_common_init_ts): Add CO_AWAIT_EXPR,
3879 CO_YIELD_EXPR, CO_RETRN_EXPR as TS expressions.
3880 * cp-tree.def (CO_AWAIT_EXPR, CO_YIELD_EXPR, (CO_RETURN_EXPR): New.
3881 * cp-tree.h (coro_validate_builtin_call): New.
3882 * decl.c (emit_coro_helper): New.
3883 (finish_function): Handle the case when a function is found to
3884 be a coroutine, perform the outlining and emit the outlined
3885 functions. Set a bit to signal that this is a coroutine component.
3886 * parser.c (enum required_token): New enumeration RT_CO_YIELD.
3887 (cp_parser_unary_expression): Handle co_await.
3888 (cp_parser_assignment_expression): Handle co_yield.
3889 (cp_parser_statement): Handle RID_CO_RETURN.
3890 (cp_parser_jump_statement): Handle co_return.
3891 (cp_parser_operator): Handle co_await operator.
3892 (cp_parser_yield_expression): New.
3893 (cp_parser_required_error): Handle RT_CO_YIELD.
3894 * pt.c (tsubst_copy): Handle CO_AWAIT_EXPR.
3895 (tsubst_expr): Handle CO_AWAIT_EXPR, CO_YIELD_EXPR and
3897 * tree.c (cp_walk_subtrees): Likewise.
3899 2020-01-17 Jason Merrill <jason@redhat.com>
3901 PR c++/92531 - ICE with noexcept(lambda).
3902 * pt.c (uses_template_parms): Don't try to enumerate all the
3905 2020-01-17 Jakub Jelinek <jakub@redhat.com>
3908 * parser.c (cp_parser_template_name): Look up deprecated attribute
3909 in DECL_TEMPLATE_RESULT or its type's attributes.
3911 2020-01-16 Jason Merrill <jason@redhat.com>
3913 PR c++/93286 - ICE with __is_constructible and variadic template.
3914 * pt.c (tsubst) [TREE_LIST]: Handle pack expansion.
3915 (tsubst_copy_and_build) [TRAIT_EXPR]: Always use tsubst for type2.
3917 PR c++/93280 - ICE with aggregate assignment and DMI.
3918 * init.c (get_nsdmi): Set TARGET_EXPR_DIRECT_INIT_P here.
3919 * typeck2.c (digest_nsdmi_init): Not here.
3921 2020-01-15 Paolo Carlini <paolo.carlini@oracle.com>
3924 * cp-tree.h (is_constrained_auto): New.
3925 * parser.c (cp_parser_maybe_commit_to_declaration): Correctly
3926 handle concept-check expressions; take a cp_decl_specifier_seq*
3928 (cp_parser_condition): Update call.
3929 (cp_parser_simple_declaration): Likewise.
3930 (cp_parser_placeholder_type_specifier): Correctly handle
3931 concept-check expressions.
3933 2020-01-15 Jason Merrill <jason@redhat.com>
3936 PR c++/33799 - destroy return value if local cleanup throws.
3937 * cp-tree.h (current_retval_sentinel): New macro.
3938 * decl.c (start_preparsed_function): Set up cleanup for retval.
3939 * typeck.c (check_return_expr): Set current_retval_sentinel.
3941 PR c++/93257 - consteval void function.
3942 * constexpr.c (verify_constant): Allow void_node.
3944 PR c++/92871 - bad code with xvalue and GNU ?: extension.
3945 * call.c (prevent_lifetime_extension): New.
3946 (build_conditional_expr_1): Use it.
3948 2020-01-14 Nathan Sidwell <nathan@acm.org>
3951 * pt.c (retrieve_specialization): Use get_template_info, not open
3955 * pt.c (retrieve_specialization): Get the TI from the decl or the
3956 classtype as appropriate.
3958 2020-01-14 David Malcolm <dmalcolm@redhat.com>
3960 * cp-gimplify.c (source_location_table_entry_hash::empty_zero_p):
3961 New static constant.
3962 * cp-tree.h (named_decl_hash::empty_zero_p): Likewise.
3963 (struct named_label_hash::empty_zero_p): Likewise.
3964 * decl2.c (mangled_decl_hash::empty_zero_p): Likewise.
3966 2020-01-14 Jason Merrill <jason@redhat.com>
3968 PR c++/92590 - wrong handling of inherited default ctor.
3969 * class.c (add_method): A constrained inherited ctor doesn't hide an
3970 implicit derived ctor.
3972 PR c++/92552 - ICE with inherited constrained default ctor.
3973 * pt.c (instantiate_class_template_1): Copy
3974 TYPE_HAS_USER_CONSTRUCTOR.
3975 PR c++/91930 - ICE with constrained inherited default ctor.
3976 * name-lookup.c (do_class_using_decl): Set TYPE_HAS_USER_CONSTRUCTOR
3977 for inherited constructor.
3978 PR c++/92594 - ICE with inherited trivial default ctor.
3979 * method.c (trivial_fn_p): Treat an inherited default constructor
3980 like a normal default constructor.
3982 PR c++/92594 - ICE with inherited trivial default ctor.
3983 * method.c (trivial_fn_p): Treat an inherited default constructor
3984 like a normal default constructor.
3986 PR c++/92009 - ICE with punning of typeid.
3987 * rtti.c (get_tinfo_desc): Call xref_basetypes.
3988 * constexpr.c (cxx_fold_indirect_ref): Don't strip
3991 2020-01-13 Jason Merrill <jason@redhat.com>
3993 PR c++/92746 - ICE with noexcept of function concept check.
3994 * except.c (check_noexcept_r): Handle concept-check.
3996 PR c++/92582 - ICE with member template as requirement.
3997 * pt.c (struct find_template_parameter_info): Add ctx_parms.
3998 (any_template_parm_r): Handle TEMPLATE_DECL.
3999 (find_template_parameters): Take parms instead of their depth.
4000 * constraint.cc (build_parameter_mapping): Pass them.
4002 PR c++/33799 - destroy return value if local cleanup throws.
4003 * cp-tree.h (current_retval_sentinel): New macro.
4004 * decl.c (start_preparsed_function): Set up cleanup for retval.
4005 * typeck.c (check_return_expr): Set current_retval_sentinel.
4007 PR c++/93238 - short right-shift with enum.
4008 * typeck.c (cp_build_binary_op): Use folded op1 for short_shift.
4010 2020-01-10 Jason Merrill <jason@redhat.com>
4012 * typeck.c (cp_build_binary_op): Restore short_shift code.
4014 PR c++/93143 - incorrect tree sharing with constexpr.
4015 * constexpr.c (cxx_eval_outermost_constant_expr): Don't assume
4016 CONSTRUCTORs are already unshared.
4018 PR c++/93173 - incorrect tree sharing.
4020 * cp-gimplify.c (cp_gimplify_init_expr, cp_gimplify_expr): Use
4021 copy_if_shared after cp_genericize_tree.
4022 * typeck2.c (split_nonconstant_init): Don't unshare here.
4024 2020-01-08 Jason Merrill <jason@redhat.com>
4026 * cp-gimplify.c (cp_gimplify_expr) [TARGET_EXPR]: Check
4027 TARGET_EXPR_DIRECT_INIT_P.
4028 * constexpr.c (cxx_eval_constant_expression): Likewise.
4030 2020-01-08 Jason Merrill <jason@redhat.com>
4032 PR c++/91369 - constexpr destructor and member initializer.
4033 * constexpr.c (cxx_eval_store_expression): Look through TARGET_EXPR
4034 when not preevaluating.
4036 2020-01-08 Jason Merrill <jason@redhat.com>
4038 * constexpr.c (cxx_eval_call_expression): Remove DECL_BY_REFERENCE
4041 2020-01-07 Paolo Carlini <paolo.carlini@oracle.com>
4043 * init.c (build_new): Add location_t parameter and use it throughout.
4044 (build_raw_new_expr): Likewise.
4045 * parser.c (cp_parser_new_expression): Pass the combined_loc.
4046 * pt.c (tsubst_copy_and_build): Adjust call.
4047 * cp-tree.h: Update declarations.
4049 2020-01-07 Jason Merrill <jason@redhat.com>
4051 PR c++/47877 - -fvisibility-inlines-hidden and member templates.
4052 * decl2.c (determine_visibility): -fvisibility-inlines-hidden beats
4053 explicit class visibility for a template.
4055 2020-01-07 Richard Sandiford <richard.sandiford@arm.com>
4057 * mangle.c (mangle_type_attribute_p): New function, split out from...
4058 (write_CV_qualifiers_for_type): ...here. Don't mangle attributes
4059 that contain a space.
4061 2020-01-07 Jakub Jelinek <jakub@redhat.com>
4064 * constexpr.c (struct constexpr_global_ctx): Add heap_alloc_count
4065 member, initialize it to zero in ctor.
4066 (cxx_eval_call_expression): Bump heap_dealloc_count when deleting
4067 a heap object. Don't cache calls to functions which allocate some
4068 heap objects and don't deallocate them or deallocate some heap
4069 objects they didn't allocate.
4071 2020-01-06 Jason Merrill <jason@redhat.com>
4073 PR c++/92552 - ICE with inherited constrained default ctor.
4074 * pt.c (instantiate_class_template_1): Copy
4075 TYPE_HAS_USER_CONSTRUCTOR.
4076 * class.c (one_inherited_ctor): Don't set it here.
4078 2020-01-06 Andrew Sutton <asutton@lock3software.com>
4080 PR c++/92739 - parsing requires clause with attributes.
4081 * parser.c (cp_parser_constraint_requires_parens): Exclude
4082 attributes as postfix expressions.
4084 2020-01-05 Jakub Jelinek <jakub@redhat.com>
4087 * parser.c (cp_parser_check_class_key): Disable access checks for the
4089 (cp_parser_maybe_warn_enum_key): Likewise. Return early if
4090 !warn_redundant_tags.
4092 2010-01-05 Jakub Jelinek <jakub@redhat.com>
4095 * cp-gimplify.c (cp_gimplify_init_expr): Don't look through
4096 TARGET_EXPR if it has been gimplified already.
4098 2020-01-03 Jason Merrill <jason@redhat.com>
4100 PR c++/93033 - incorrect tree node sharing with array init.
4101 * typeck2.c (split_nonconstant_init): Unshare non-decl.
4102 * cp-gimplify.c (cp_gimplify_init_expr): Only split if -fexceptions.
4104 2020-01-02 Jason Merrill <jason@redhat.com>
4106 * pt.c (invalid_nontype_parm_type_p): Reject class placeholder in
4109 2020-01-02 Jakub Jelinek <jakub@redhat.com>
4112 * cp-objcp-common.c (identifier_global_tag): Return NULL_TREE if name
4113 has not been found, rather than error_mark_node.
4115 2020-01-01 Jakub Jelinek <jakub@redhat.com>
4117 Update copyright years.
4119 Copyright (C) 2020 Free Software Foundation, Inc.
4121 Copying and distribution of this file, with or without modification,
4122 are permitted in any medium without royalty provided the copyright
4123 notice and this notice are preserved.