1 2020-08-25 Tobias Burnus <tobias@codesourcery.com>
4 * semantics.c (handle_omp_array_sections_1): Talk about
5 array function parameter in the error message.
7 2020-08-25 Jakub Jelinek <jakub@redhat.com>
10 * cp-tree.h (build_trivial_dtor_call): Add bool argument defaulted
12 * call.c (build_trivial_dtor_call): Add NO_PTR_DEREF argument. If
13 instance is a pointer and NO_PTR_DEREF is true, clobber the pointer
14 rather than what it points to.
15 * semantics.c (finish_call_expr): Call build_trivial_dtor_call with
18 2020-08-25 Jason Merrill <jason@redhat.com>
21 * optimize.c (populate_clone_array): Revert PR70462 change.
22 (maybe_clone_body): Likewise.
24 2020-08-24 Nathan Sidwell <nathan@acm.org>
26 * ptree.c (debug_overload): New.
28 2020-08-19 Jason Merrill <jason@redhat.com>
31 * cp-tree.h (push_tinst_level, push_tinst_level_loc): Declare.
32 * constraint.cc (satisfy_declaration_constraints):
33 Use add_outermost_template_args and push_tinst_level.
34 * pt.c (add_outermost_template_args): Handle getting
35 a TEMPLATE_DECL as the first argument.
36 (push_tinst_level, push_tinst_level_loc): No longer static.
37 (fn_type_unification): Check satisfaction before non-dependent
40 2020-08-18 Nathan Sidwell <nathan@acm.org>
42 * cp-tree.h (SET_TYPE_TEMPLTE_INFO): Do not deal with ALIAS templates.
43 * pt.c (lookup_template_class_1): Special-case alias template
44 template_info setting.
46 2020-08-18 Jason Merrill <jason@redhat.com>
49 * pt.c (tsubst_aggr_type): Rewrite in C++17, too.
50 (maybe_dependent_member_ref): Likewise.
51 (build_deduction_guide): Re-substitute template parms.
52 * cp-tree.h (struct push_nested_class_guard): New.
53 * constraint.cc (get_normalized_constraints_from_decl): Use it.
55 2020-08-18 Jason Merrill <jason@redhat.com>
58 * pt.c (maybe_dependent_member_ref): New.
59 (tsubst_copy) [CONST_DECL]: Use it.
61 (tsubst_aggr_type): Handle nested type.
63 2020-08-18 Nathan Sidwell <nathan@acm.org>
65 * name-lookup.c (qualify_lookup): Drop lambda checking here.
66 Reorder namespace & type checking.
67 (lookup_name_1): Do hidden lambda checking here.
69 2020-08-14 Nathan Sidwell <nathan@acm.org>
71 * name-lookup.h (lookup_name_real, lookup_name_nonclass): Rename
73 (lookup_name): ... these new overloads.
74 * name-lookup.c (identifier_type_value_1): Rename lookup_name_real
76 (lookup_name_real_1): Rename to ...
77 (lookup_name_1): ... here.
78 (lookup_name_real): Rename to ...
79 (lookup_name): ... here. Rename lookup_name_real_1 call.
80 (lookup_name_nonclass): Delete.
81 * call.c (build_operator_new_call): Rename lookup_name_real call.
82 (add_operator_candidates): Likewise.
83 (build_op_delete_call): Rename lookup_name_nonclass call.
84 * parser.c (cp_parser_lookup_name): Likewise.
85 * pt.c (tsubst_friend_class, lookup_init_capture_pack): Likewise.
86 (tsubst_expr): Likewise.
87 * semantics.c (capture_decltype): Likewise.
89 2020-08-14 Nathan Sidwell <nathan@acm.org>
91 * cp-tree.h (LOOKUP_HIDDEN): Delete.
92 (LOOKUP_PREFER_RVALUE): Adjust initializer.
93 * name-lookup.h (enum class LOOK_want): Add HIDDEN_FRIEND and
95 (lookup_name_real): Drop flags parm.
96 (lookup_qualified_name): Drop find_hidden parm.
97 * name-lookup.c (class name_lookup): Drop hidden field, adjust
99 (name_lookup::add_overload): Check want for hiddenness.
100 (name_lookup::process_binding): Likewise.
101 (name_lookup::search_unqualified): Likewise.
102 (identifier_type_value_1): Adjust lookup_name_real call.
103 (set_decl_namespace): Adjust name_lookup ctor.
104 (qualify_lookup): Drop flags parm, use want for hiddenness.
105 (lookup_qualified_name): Drop find_hidden parm.
106 (lookup_name_real_1): Drop flags parm, adjust qualify_lookup
108 (lookup_name_real): Drop flags parm.
109 (lookup_name_nonclass, lookup_name): Adjust lookup_name_real
111 (lookup_type_scope_1): Adjust qualify_lookup calls.
112 * call.c (build_operator_new_call): Adjust lookup_name_real call.
113 (add_operator_candidates): Likewise.
114 * coroutines.cc (morph_fn_to_coro): Adjust lookup_qualified_name
116 * parser.c (cp_parser_lookup_name): Adjust lookup_name_real calls.
117 * pt.c (check_explicit_specialization): Adjust
118 lookup_qualified_name call.
119 (deduction_guides_for): Likewise.
120 (tsubst_friend_class): Adjust lookup_name_real call.
121 (lookup_init_capture_pack): Likewise.
122 (tsubst_expr): Likewise, don't look in namespaces.
123 * semantics.c (capture_decltype): Adjust lookup_name_real. Don't
126 2020-08-14 Jason Merrill <jason@redhat.com>
130 * cp-tree.h (unsafe_return_slot_p): Declare.
131 * call.c (is_base_field_ref): Rename to unsafe_return_slot_p.
132 (build_over_call): Check unsafe_return_slot_p.
133 (build_special_member_call): Likewise.
134 * init.c (expand_default_init): Likewise.
135 * typeck2.c (split_nonconstant_init_1): Likewise.
137 2020-08-14 Nathan Sidwell <nathan@acm.org>
139 * cp-tree.h (LOOKUP_PREFER_TYPES, LOOKUP_PREFER_NAMESPACES)
140 (LOOKUP_NAMESPACES_ONLY, LOOKUP_TYPES_ONLY)
141 (LOOKUP_QUALIFIERS_ONL): Delete.
142 (LOOKUP_HIDDEN): Adjust.
143 * name-lookup.h (enum class LOOK_want): New.
144 (operator|, operator&): Overloads for it.
145 (lookup_name_real): Replace prefer_type & namespaces_only with
147 (lookup_qualified_name): Replace prefer_type with LOOK_want.
148 (lookup_name_prefer_type): Replace with ...
149 (lookup_name): ... this. New overload with LOOK_want parm.
150 * name-lookup.c (struct name_lookup): Replace flags with want and
151 hidden fields. Adjust constructors.
152 (name_lookyp::add_overload): Correct hidden stripping test. Update
153 for new LOOK_want type.
154 (name_lookup::process_binding): Likewise.
155 (name_lookup::search_unqualified): Use hidden flag.
156 (identifier_type_value_1): Adjust lookup_name_real call.
157 (set_decl_namespace): Adjust name_lookup ctor.
158 (lookup_flags): Delete.
159 (qualify_lookup): Add LOOK_want parm, adjust.
160 (lookup_qualified_name): Replace prefer_type parm with LOOK_want.
161 (lookup_name_real_1): Replace prefer_type and namespaces_only with
163 (lookup_name_real): Likewise.
164 (lookup_name_nonclass, lookup_name): Adjust lookup_name_real call.
165 (lookup_name_prefer_type): Rename to ...
166 (lookup_name): ... here. New overload with LOOK_want parm.
167 (lookup_type_scope_1): Adjust qualify_lookup calls.
168 * call.c (build_operator_new_call)
169 (add_operator_candidates): Adjust lookup_name_real calls.
170 * coroutines.cc (find_coro_traits_template_decl)
171 (find_coro_handle_template_decl, morph_fn_to_coro): Adjust
172 lookup_qualified_name calls.
173 * cp-objcp-common.c (identifier_global_tag): Likewise.
174 * decl.c (get_tuple_size, get_tuple_decomp_init): Likewise.
175 (lookup_and_check_tag): Use lookup_name overload.
176 * parser.c (cp_parser_userdef_numeric_literal): Adjust
177 lookup_qualified_name call.
178 (prefer_arg_type): Drop template_mem_access parm, return LOOK_want
180 (cp_parser_lookup_name): Adjust lookup_member, lookup_name_real
182 * pt.c (check_explicit_specialization): Adjust lookup_qualified_name
184 (tsubst_copy_and_build, tsubst_qualified_name): Likewise
185 (deduction_guides_for): Likewise.
186 (tsubst_friend_class): Adjust lookup_name_real call.
187 (lookup_init_capture, tsubst_expr): Likewise.
188 * rtti.c (emit_support_tinfos): Adjust lookup_qualified_name call.
189 * semantics.c (omp_reduction_lookup): Likewise.
190 (capture_decltype): Adjust lookup_name_real call.
192 2020-08-13 Nathan Sidwell <nathan@acm.org>
194 * name-lookup.h (enum class LOOK_where): New.
195 (operator|, operator&): Overloads for it.
196 (lookup_name_real): Replace NONCLASS & BLOCK_P parms with WHERE.
197 * name-lookup.c (identifier_type_value_w): Adjust
198 lookup_name_real call.
199 (lookup_name_real_1): Replace NONCLASS and BLOCK_P parameters
200 with WHERE bitmask. Don't search namespaces if not asked to.
201 (lookup_name_real): Adjust lookup_name_real_1 call.
202 (lookup_name_nonclass, lookup_name)
203 (lookup_name_prefer_type): Likewise.
204 * call.c (build_operator_new_call)
205 (add_operator_candidates): Adjust lookup_name_real calls.
206 * parser.c (cp_parser_lookup_name): Likewise.
207 * pt.c (tsubst_friend_class, lookup_init_capture_pack)
208 (tsubst_expr): Likewise.
209 * semantics.c (capture_decltype): Likewise.
211 2020-08-13 Marek Polacek <polacek@redhat.com>
214 * typeck.c (build_static_cast_1): Implement P1975R0 by allowing
215 static_cast to aggregate type.
217 2020-08-10 Jakub Jelinek <jakub@redhat.com>
220 * constexpr.c (cxx_eval_binary_expression): For SPACESHIP_EXPR, tail
221 call cxx_eval_constant_expression after genericize_spaceship to avoid
222 undesirable further VERIFY_CONSTANT.
224 2020-08-10 Patrick Palka <ppalka@redhat.com>
226 * pt.c (resolve_overloaded_unification): Drop functions with
227 unsatisfied constraints.
228 (resolve_nondeduced_context): Likewise.
230 2020-08-05 Patrick Palka <ppalka@redhat.com>
231 Jason Merrill <jason@redhat.com>
234 * constexpr.c (cxx_eval_vec_init_1): Truncate ctx->ctor and
235 then clear CONSTRUCTOR_NO_CLEARING on each appended element
236 initializer if we're initializing a previously zero-initialized
239 2020-08-04 Marek Polacek <polacek@redhat.com>
242 * parser.c (cp_parser_elaborated_type_specifier): Allow
243 'template' following ::.
245 2020-08-04 Nathan Sidwell <nathan@acm.org>
247 * parser.c (cp_parser_explicit_specialization): Refactor
248 to avoid leak of num_template_parameter_lists value.
250 2020-08-04 Patrick Palka <ppalka@redhat.com>
253 * init.c (sort_mem_initializers): Preserve TREE_TYPE of the
254 member initializer list node.
255 (emit_mem_initializers): Set input_location when performing each
256 member initialization.
257 * parser.c (cp_parser_mem_initializer): Attach the source
258 location of this initializer to a dummy EMPTY_CLASS_EXPR
259 within the TREE_TYPE of the list node.
260 * pt.c (tsubst_initializer_list): Preserve TREE_TYPE of the
261 member initializer list node.
263 2020-08-03 Marek Polacek <polacek@redhat.com>
265 * cp-tree.h (after_nsdmi_defaulted_late_checks): Remove.
267 2020-08-03 Marek Polacek <polacek@redhat.com>
271 * pt.c (check_default_tmpl_args): Also consider variable
274 2020-07-31 Jakub Jelinek <jakub@redhat.com>
277 * decl.c (finish_function): In constexpr functions use for C++14 and
278 later error instead of warning if no return statement is present and
279 diagnose it regardless of warn_return_type. Move the warn_return_type
280 diagnostics earlier in the function.
282 2020-07-31 Martin Sebor <msebor@redhat.com>
285 * class.c (build_base_path): Set no-warning bit on the synthesized
286 conditional expression in static_cast.
288 2020-07-31 Richard Biener <rguenther@suse.de>
291 * cp-objcp-common.h (LANG_HOOKS_FINALIZE_EARLY_DEBUG):
292 Define to c_common_finalize_early_debug.
294 2020-07-31 Patrick Palka <ppalka@redhat.com>
297 * constexpr.c (cxx_eval_constant_expression) <case CONST_DECL>:
298 Pass false to decl_constant_value and decl_really_constant_value
299 so that they don't unshare their result.
300 * cp-tree.h (decl_constant_value): New declaration with an added
302 (decl_really_constant_value): Add bool parameter defaulting to
303 true to existing declaration.
304 * init.c (constant_value_1): Add bool parameter which controls
305 whether to unshare the initializer before returning. Call
306 unshare_expr at most once.
307 (scalar_constant_value): Pass true to constant_value_1's new
309 (decl_really_constant_value): Add bool parameter and forward it
311 (decl_constant_value): Likewise, but instead define a new
312 overload with an added bool parameter.
314 2020-07-30 Patrick Palka <ppalka@redhat.com>
317 * pt.c (resolve_overloaded_unification): If the function
318 template specialization has a placeholder return type,
319 then instantiate it before attempting unification.
321 2020-07-30 Patrick Palka <ppalka@redhat.com>
324 * pt.c (alias_ctad_tweaks): Call remove_constraints before
325 calling set_constraints.
327 2020-07-30 Patrick Palka <ppalka@redhat.com>
330 * pt.c (reduce_template_parm_level): Propagate DECL_VIRTUAL_P
331 from the original TEMPLATE_PARM_DECL to the new lowered one.
333 2020-07-30 Patrick Palka <ppalka@redhat.com>
336 * constraint.cc (constraints_satisfied_p): Return true if
338 * pt.c (do_type_instantiation): Update a paragraph taken from
339 [temp.explicit] to reflect the latest specification. Don't
340 instantiate a member with unsatisfied constraints.
342 2020-07-29 Jason Merrill <jason@redhat.com>
345 * cp-tree.h (IMPLICIT_RVALUE_P): New.
346 (enum cp_lvalue_kind_flags): Add clk_implicit_rval.
347 (implicit_rvalue_p, set_implicit_rvalue_p): New.
348 * call.c (reference_binding): Check clk_implicit_rval.
349 (build_over_call): Adjust C++20 implicit move.
350 * coroutines.cc (finish_co_return_stmt): Simplify implicit move.
351 * except.c (build_throw): Adjust C++20 implicit move.
352 * pt.c (tsubst_copy_and_build) [STATIC_CAST_EXPR]: Propagate
354 * tree.c (lvalue_kind): Set clk_implicit_rval.
355 * typeck.c (treat_lvalue_as_rvalue_p): Overhaul.
356 (maybe_warn_pessimizing_move): Adjust.
357 (check_return_expr): Adjust C++20 implicit move.
359 2020-07-29 Jason Merrill <jason@redhat.com>
362 * call.c (build_over_call): Don't call a const ref
363 overload for implicit move.
365 2020-07-28 Nathan Sidwell <nathan@acm.org>
367 * cp-gimplify.c (cp_genericize_r): Set IMPORTED_DECL's context.
368 * cp-objcp-common.c (cp_pushdecl): Set decl's context.
369 * decl.c (grokfndecl): Make DECL_CONTEXT setting clearer.
371 2020-07-28 Nathan Sidwell <nathan@acm.org>
373 * class.c (fixup_type_variants): Copy TYPE_SIZE and
375 (finish_struct): Call it.
377 2020-07-28 Nathan Sidwell <nathan@acm.org>
379 * ptree.c (cxx_print_decl): Better indentation.
381 2020-07-28 Jakub Jelinek <jakub@redhat.com>
382 Mark Wielaard <mark@klomp.org>
385 * parser.c (cp_lexer_safe_previous_token): Don't call
386 cp_lexer_previous_token, instead inline it by hand and return NULL
387 instead of failing assertion if all previous tokens until the first
389 (cp_parser_error_1): Optimize - only call cp_lexer_safe_previous_token
390 if token->type is CPP_NAME. Use cp_lexer_safe_previous_token instead
391 of cp_lexer_previous_token for the missing_token_desc != RT_NONE
394 2020-07-27 Nathan Sidwell <nathan@acm.org>
396 * cp-tree.h (enum cp_tree_index): Add CPTI_AS_BASE_IDENTIFIER.
397 (as_base_identifier): Define.
398 * decl.c (initialize_predifined_identifiers): Initialize as_base
400 * class.c (layout_class_type): Name the as-base type. Zap
401 NSDMI its fields may have.
403 2020-07-22 Nathan Sidwell <nathan@acm.org>
405 * class.c (maybe_add_class_template_decl_list): Don't add CONST_DECLs.
407 2020-07-22 Nathan Sidwell <nathan@acm.org>
409 * typeck.c (structural_comptypes): [DECLTYPE_TYPE] break
411 [UNDERLYING_TYPE]: Use an if.
414 2020-07-22 Nathan Sidwell <nathan@acm.org>
416 * decl.c (decls_match): Move variables into scopes
418 (duplicate_decls): Use STRIP_TEMPLATE.
419 (build_typename_type): Move var decls to their assignments.
420 (begin_function_body): Likewise.
421 * decl2.c (get_guard): Likewise.
422 (mark_used): Use true for truthiness.
423 * error.c (dump_aggr_type): Hold the decl in a var called
426 2020-07-22 Nathan Sidwell <nathan@acm.org>
428 * cp-tree.h (struct tree_lambda_expr): Shrink
429 default_capture_mode & discriminator.
431 2020-07-22 Nathan Sidwell <nathan@acm.org>
433 * mangle.c (decl_is_template_id): Rename to ...
434 (maybe_template_info): ... here. Return the template info,
435 rather than use a pointer. Adjust all callers.
436 (find_substitution): Use template_args_equal, rather than
439 2020-07-22 Tobias Burnus <tobias@codesourcery.com>
441 * parser.c (cp_parser_omp_clause_hint): Require nonnegative hint.
442 (cp_parser_omp_critical): Permit hint(0) clause without named critical.
443 * pt.c (tsubst_expr): Re-check the latter for templates.
445 2020-07-21 Sunil K Pandey <skpgkp2@gmail.com>
448 * decl.c (cp_finish_decl): Call target hook
449 lower_local_decl_alignment to lower local decl alignment.
451 2020-07-21 Nathan Sidwell <nathan@acm.org>
453 * parser.c (cp_lexer_consume_token): Drop PRAGMA_EOL assert.
454 (cp_parser_skip_to_closing_parenthesis_1): Only pass start token
455 to pragma skipper if recovering.
456 (cp_parser_skip_to_pragma_eol): Only purge and change pragma
457 state when recovering.
459 2020-07-20 Jason Merrill <jason@redhat.com>
461 * pt.c (type_dependent_expression_p): A pseudo-dtor can be
463 * semantics.c (finish_call_expr): Use build_trivial_dtor_call for
465 (finish_pseudo_destructor_expr): Leave type NULL for dependent arg.
467 2020-07-20 Jason Merrill <jason@redhat.com>
469 * mangle.c (write_base_ref): New.
470 (write_expression): Use it for base field COMPONENT_REFs.
471 * pt.c (invalid_tparm_referent_p): Canonicalize the type
472 of array offsets. Allow subobjects.
474 2020-07-20 Jason Merrill <jason@redhat.com>
476 * pt.c (collect_ctor_idx_types): Add 'const' when deducing from
479 2020-07-17 Marek Polacek <polacek@redhat.com>
482 * decl.c (grokdeclarator): Detect cv-qual decltype(auto).
483 * pt.c (do_auto_deduction): Likewise.
485 2020-07-16 Iain Sandoe <iain@sandoe.co.uk>
492 * coroutines.cc (struct coro_ret_data): Delete.
493 (coro_maybe_expand_co_return): Delete.
494 (co_return_expander): Delete.
495 (expand_co_returns): Delete.
496 (co_await_find_in_subtree): Remove unused name.
497 (build_actor_fn): Remove unused parm, remove handling
498 for co_return expansion.
499 (register_await_info): Demote duplicate info message to a
501 (coro_make_frame_entry): Move closer to use site.
502 (struct susp_frame_data): Add fields for final suspend label
503 and a flag to indicate await expressions with initializers.
504 (captures_temporary): Delete.
505 (register_awaits): Remove unused code, update comments.
506 (find_any_await): New.
507 (tmp_target_expr_p): New.
508 (struct interesting): New.
509 (find_interesting_subtree): New.
510 (struct var_nest_node): New.
511 (flatten_await_stmt): New.
512 (handle_nested_conditionals): New.
513 (process_conditional): New.
514 (replace_statement_captures): Rename to...
515 (maybe_promote_temps): ... this.
516 (maybe_promote_captured_temps): Delete.
517 (analyze_expression_awaits): Check for await expressions with
518 initializers. Simplify handling for truth-and/or-if.
519 (expand_one_truth_if): Simplify (map cases that need expansion
521 (await_statement_walker): Handle CO_RETURN_EXPR. Simplify the
522 handling for truth-and/or-if expressions.
523 (register_local_var_uses): Ensure that we create names in the
524 implementation namespace.
525 (morph_fn_to_coro): Add final suspend label to suspend frame
526 callback data and remove it from the build_actor_fn call.
528 2020-07-16 Marek Polacek <polacek@redhat.com>
530 * call.c (convert_like): Remove macro and introduce a new
532 (convert_like_with_context): Likewise.
533 (convert_like_real): Rename to convert_like.
534 (convert_like_real_1): Rename to convert_like_internal. Call
535 convert_like instead of convert_like_real therein.
536 (perform_direct_initialization_if_possible): Call convert_like
537 instead of convert_like_real.
539 2020-07-16 Iain Sandoe <iain@sandoe.co.uk>
541 * coroutines.cc: Correct some spelling errors
544 2020-07-15 Nathan Sidwell <nathan@acm.org>
546 * parser.c (cp_parser_declaration): Avoid copying tokens.
547 (cp_parser_block_declaration): RAII token pointer.
549 2020-07-15 Nathan Sidwell <nathan@acm.org>
551 * parser.c (cp_parser_skip_to_closing_parenthesis_1): Deal with
552 meeting a deferred pragma.
553 (cp_parser_skip_to_end_of_statement): Likewise.
554 (cp_parser_skip_to_end_of_block_or_statement): Likewise.
555 (cp_parser_skip_to_pragma_eol): We should never meet EOF.
556 (cp_parser_omp_declare_simd): Likewise.
557 (cp_parser_omp_declare_reduction, cp_parser_oacc_routine)
558 (pragma_lex): Likewise.
560 2020-07-14 Marek Polacek <polacek@redhat.com>
565 * call.c (convert_like_real_1): Renamed from convert_like_real.
566 (convert_like_real): New wrapper for convert_like_real_1.
568 2020-07-14 Nathan Sidwell <nathan@acm.org>
570 * parser.c (cp_lexer_alloc): Do not deal with PCH here.
571 (cp_lexer_new_main): Deal with PCH here. Store the tokens directly
573 (cp_lexer_new_from_tokens): Assert last token isn't purged either.
574 (cp_lexer_get_preprocessor_token): Change first arg to flags, adjust.
575 (cp_parser_new): Pass the lexer in, don't create it here.
576 (cp_parser_translation_unit): Initialize access checks here.
577 (cp_parser_initial_pragma): First token is provided by caller,
578 don't deal with PCH stopping here. Adjust error message.
579 (c_parse_file): Adjust, change error message to avoid C++20 module
582 2020-07-14 Nathan Sidwell <nathan@acm.org>
584 * ptree.c (cxx_print_type): Add TYPEOF_TYPE and BASES.
586 2020-07-14 Nathan Sidwell <nathan@acm.org>
588 * class.c (build_base_field_1): Cache CLASSTYPE_AS_BASE.
589 (build_self_reference): Rename value -> decl.
590 (dump_class_hierarchy_1): Cache CLASSTYPE_AS_BASE.
592 2020-07-14 Marek Polacek <polacek@redhat.com>
595 * decl.c (grokdeclarator) <case cdk_function>: Check also
596 pointers/references/... to functions.
598 2020-07-14 Nathan Sidwell <nathan@acm.org>
600 * cp-tree.h: Correct some tree lang flag comments,
601 reformat some structure definitions. Note some structure
602 sizes. Clarify some comments.
603 (yyungetc): Delete. Not been a thing for some time.
604 * class.c (copy_fndecl_with_name): Comment.
605 (check_bases_and_members): Unnecessary {}.
606 (layout_class_type): Comment.
607 * cp-tree.def (UNBOUND_CLASS_TEMPLATE): Adjust comment.
608 * decl.c: Fix some formatting & whitespace issues.
609 (function_requirements_equivalent_p): Note why
610 substitutions are needed.
611 * decl2.c (no_linkage_error): Note that heroics about
612 'typedef struct { ... };' are no longer needed.
613 * method.c: Whitespace.
614 * name-lookup.c: Whitespace.
615 (add_decl_to_level): Reformat a line.
616 (print_binding_stack): Mark as DEBUG_FUNCTION.
617 (has_using_namespace_std_directive_p): Delete comment.
619 * ptree.c: Whitespace.
620 * rtti.c: Whitespace & comment.
622 * typeck.c (structural_comptypes): Add comment.
624 2020-07-13 Nathan Sidwell <nathan@acm.org>
626 * Make-lang.in (c++.disclean): Likewise.
628 2020-07-13 Marek Polacek <polacek@redhat.com>
631 * parser.c (cp_parser_enum_specifier): Commit to tentative parse
632 after we've seen an opening brace.
634 2020-07-10 Jason Merrill <jason@redhat.com>
636 * tree.c (structural_type_p): Allow unions.
637 * mangle.c (write_expression): Express unions with a designator.
639 2020-07-10 Jason Merrill <jason@redhat.com>
641 * pt.c (convert_nontype_argument): Handle REAL_TYPE.
642 (invalid_nontype_parm_type_p): Allow all structural types.
643 * tree.c (structural_type_p): Use SCALAR_TYPE_P.
645 2020-07-10 Jason Merrill <jason@redhat.com>
650 * class.c (check_field_decls): An array of empty classes is not an
652 (layout_empty_base_or_field): Handle explicit alignment.
655 2020-07-09 Julian Brown <julian@codesourcery.com>
656 Thomas Schwinge <thomas@codesourcery.com>
659 * semantics.c (finish_omp_clauses): Likewise.
661 2020-07-09 Patrick Palka <ppalka@redhat.com>
664 * constexpr.c (potential_constant_expression_1) <case PARM_DECL>:
665 Restore dependent_type_p check that guarded the call to
666 is_really_empty_class.
668 2020-07-08 Patrick Palka <ppalka@redhat.com>
671 * constexpr.c (potential_constant_expression_1) <case PARM_DECL>:
672 When processing_template_decl, check COMPLETE_TYPE_P before
673 calling is_really_empty_class. Don't check dependent_type_p.
675 2020-07-08 Marek Polacek <polacek@redhat.com>
678 * parser.c (cp_parser_decltype): Print error about using decltype(auto)
679 in C++11. Check that the token following "auto" is ")".
681 2020-07-07 Patrick Palka <ppalka@redhat.com>
684 * cxx-pretty-print.c (pp_cxx_unqualified_id): Check
685 PRIMARY_TEMPLATE_P before printing the innermost template
688 2020-07-07 Martin Sebor <msebor@redhat.com>
691 * parser.c (class_decl_loc_t::diag_mismatched_tags): Print notes only
692 if warning_at returns nonzero.
694 2020-07-06 Martin Sebor <msebor@redhat.com>
697 * call.c (build_over_call): Check calls only when tf_warning is set.
699 2020-07-06 Nathan Sidwell <nathan@acm.org>
701 * decl.c (push_library_fn): Return the decl pushdecl_toplevel returns.
702 * except.c (verify_library_fn): Replace with ...
703 (declare_library_fn_1): ... this fn. Always push the fn.
704 (declare_library_fn): Call it.
705 (build_throw): Call declare_library_fn_1.
707 2020-07-06 Jonathan Wakely <jwakely@redhat.com>
710 * parser.c (cp_parser_toplevel_declaration): Only do pedwarn for
711 empty-declaration in C++98.
713 2020-07-02 Jason Merrill <jason@redhat.com>
714 Jakub Jelinek <jakub@redhat.com>
716 * decl.c (grokfndecl): Allow consteval virtual.
717 * search.c (check_final_overrider): Check consteval mismatch.
718 * constexpr.c (cxx_eval_thunk_call): New.
719 (cxx_eval_call_expression): Call it.
720 * cvt.c (cp_get_fndecl_from_callee): Handle FDESC_EXPR.
721 * decl2.c (mark_vtable_entries): Track vtables with consteval.
722 (maybe_emit_vtables): Pass consteval_vtables through.
723 (clear_consteval_vfns): Replace consteval with nullptr.
724 (c_parse_final_cleanups): Call it.
726 2020-07-01 Nathan Sidwell <nathan@acm.org>
728 * class.c (copy_fndecl_with_name): Add additional predicate args, do
729 not deduce them locally.
730 (copy_operator_fn): Adjust copy_fndecl_with_name call.
731 (build_clone): Add vtt and inherited predicate args. Pass through
732 to copy_fndecl_with_name call.
733 (build_cdtor_clones): Likewise, pass through to build_clone as
735 (build_cdtor): Determine vtt and inherited here.
736 * cp-tree.h (DECL_NEEDS_CTT_PARM_P): Delete.
738 2020-06-30 Nathan Sidwell <nathan@acm.org>
740 * cp-tree.h (copy_fndecl_with_name): Rename to ...
741 (copy_operatorn_fn): ... this. Change arg type.
742 (clone_function_decl): Rename to ...
743 (clone_cdtor): ... this.
744 * class.c (copy_fndecl_with_name): Make static.
745 (copy_operator_fn): New wrapper.
746 (build_clones): Rename to ...
747 (build_cdtor_clones): ... this.
748 (clone_function_decl): Rename to ...
749 (clone_cdtor): ... this. Adjust build_clones calls.
750 (clone_constructors_and_destructors): Adjust clone_function_decl
752 * method.c (implicitly_declare_fn): Adjust copy_fndecl_with_name
754 (lazily_declare_fn): Adjust clone_function_decl call.
755 * pt.c (tsubst_function_decl): Likewise.
756 (instantiate_template_1): Likewise.
758 2020-06-30 Iain Sandoe <iain@sandoe.co.uk>
760 * coroutines.cc (morph_fn_to_coro): Remove trailing
761 space in a diagnostic.
763 2020-06-30 Iain Sandoe <iain@sandoe.co.uk>
765 * coroutines.cc (expand_one_await_expression): Remove
766 code dealing with initial suspend.
767 (build_actor_fn): Remove code special-casing initial
768 and final suspend. Handle the final suspend and marking
769 of the coroutine as done.
770 (coro_rewrite_function_body): New.
771 (bind_expr_find_in_subtree): Remove.
772 (coro_body_contains_bind_expr_p): Remove.
773 (morph_fn_to_coro): Split the rewrite of the original
774 function into coro_rewrite_function_body and call it.
776 2020-06-29 Marek Polacek <polacek@redhat.com>
779 * decl.c (duplicate_decls): Make sure a concept or a variable
780 template is unique in its declarative region.
782 2020-06-29 Marek Polacek <polacek@redhat.com>
785 * pt.c (collect_ctor_idx_types): Use TREE_TYPE.
787 2020-06-28 Iain Sandoe <iain@sandoe.co.uk>
790 * coroutines.cc (register_local_var_uses): Skip past
793 2020-06-27 Iain Sandoe <iain@sandoe.co.uk>
796 * coroutines.cc (get_awaitable_var): New helper.
797 (build_co_await): Check more carefully before
798 copying an awaitable.
799 (expand_one_await_expression): No initializer
800 is required when the awaitable is not a temp.
801 (register_awaits): Remove handling that is now
802 completed when the await expression is built.
804 2020-06-27 Iain Sandoe <iain@sandoe.co.uk>
806 * coroutines.cc (morph_fn_to_coro): Diagnose unavailable
807 get_return_object_on_allocation_failure.
809 2020-06-26 Iain Sandoe <iain@sandoe.co.uk>
812 * coroutines.cc (struct coroutine_info):Add a field
813 to hold computed p.return_void expressions.
814 (coro_build_promise_expression): New.
815 (get_coroutine_return_void_expr): New.
816 (finish_co_yield_expr): Build the promise expression
817 using coro_build_promise_expression.
818 (finish_co_return_stmt): Likewise.
819 (build_init_or_final_await): Likewise.
820 (morph_fn_to_coro): Likewise, for several cases.
822 2020-06-26 Iain Sandoe <iain@sandoe.co.uk>
824 * coroutines.cc (morph_fn_to_coro): Handle error
825 returns in building g-r-o-o-a-f expressions.
827 2020-06-24 Nicholas Krause <xerofoify@gmail.com>
830 * typeck2.c (cxx_incomplete_type_diagnostic): Add missing
831 TYPE_EXPANSION_PACK check for diagnosing incomplete types in
832 cxx_incomplete_type_diagnostic.
834 2020-06-24 Iain Sandoe <iain@sandoe.co.uk>
838 * coroutines.cc (act_des_fn): Copy function
839 attributes onto the outlined coroutine helpers.
841 2020-06-24 Jason Merrill <jason@redhat.com>
843 * call.c (build_over_call): Only call build_base_path once.
845 2020-06-24 Jason Merrill <jason@redhat.com>
848 * call.c (build_over_call): Look up the overrider in base_binfo.
849 * class.c (lookup_vfn_in_binfo): Look through BINFO_PRIMARY_P.
851 2020-06-23 Jason Merrill <jason@redhat.com>
854 Implement C++20 P2082R1, Fixing CTAD for aggregates.
855 * cp-tree.h (TPARMS_PRIMARY_TEMPLATE): Split out from...
856 (DECL_PRIMARY_TEMPLATE): ...here.
857 (builtin_guide_p): Declare.
858 * decl.c (reshape_init_class): Handle bases of a template.
859 (reshape_init_r): An array with dependent bound takes a single
861 * pt.c (tsubst_default_argument): Shortcut {}.
862 (unify_pack_expansion): Allow omitted arguments to trailing pack.
863 (builtin_guide_p): New.
864 (collect_ctor_idx_types): Give a trailing pack a {} default
865 argument. Handle arrays better.
867 2020-06-23 Iain Sandoe <iain@sandoe.co.uk>
870 * coroutines.cc (morph_fn_to_coro): Apply a cleanup to
871 the get return object when the DTOR is non-trivial.
873 2020-06-20 Iain Sandoe <iain@sandoe.co.uk>
876 * coroutines.cc (morph_fn_to_coro): Update handling of
877 get-return-object-on-allocation-fail and diagnose missing
880 2020-06-20 Jason Merrill <jason@redhat.com>
882 * call.c (joust): Only compare constraints for non-template
883 candidates with matching parameters.
884 * pt.c (tsubst_pack_expansion): Fix getting a type parameter
886 (more_specialized_fn): Only compare constraints for candidates with
889 2020-06-19 Jason Merrill <jason@redhat.com>
891 * method.c (early_check_defaulted_comparison): Allow defaulting
892 comparison outside class. Complain if non-member operator isn't a
895 2020-06-18 Jason Merrill <jason@redhat.com>
897 * method.c (early_check_defaulted_comparison): Check for &&.
898 (build_comparison_op): Allow empty union. Diagnose non-category
900 (common_comparison_type): Remove handling for non-category type.
902 2020-06-18 Marek Polacek <polacek@redhat.com>
905 * pt.c (finish_template_variable): Return if
906 coerce_innermost_template_parms return error_mark_node.
908 2020-06-18 Marek Polacek <polacek@redhat.com>
911 * pt.c (tsubst_copy_and_build) <case NEW_EXPR>: Return error_mark_node
912 if placement is erroneous.
914 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
917 * parser.c (cp_parser_elaborated_type_specifier): Do not warn
918 unless in a declaration.
920 2020-06-17 Jason Merrill <jason@redhat.com>
922 * cp-tree.h (copy_fndecl_with_name): Declare.
923 * class.c (copy_fndecl_with_name): Split out from...
924 (build_clone): ...here.
925 (add_implicitly_declared_members): Add op== to TYPE_FIELDS.
926 * method.c (implicitly_declare_fn): Use copy_fndecl_with_name.
928 2020-06-17 Jason Merrill <jason@redhat.com>
930 * call.c (build_new_op_1): Don't look for a CALL_EXPR when
931 calling a consteval function.
933 2020-06-17 Jason Merrill <jason@redhat.com>
935 * decl2.c (grokfield): Pass SD_DEFAULTED and SD_DELETED.
936 * decl.c (duplicate_decls): Reduce error for delete
937 after earlier declaration to pedwarn.
939 2020-06-17 Marek Polacek <polacek@redhat.com>
942 * constexpr.c (maybe_fold_non_dependent_expr): New.
943 * cp-tree.h (maybe_fold_non_dependent_expr): Declare.
944 * typeck.c (cp_build_array_ref): Call maybe_fold_non_dependent_expr
945 instead of maybe_constant_value.
947 2020-06-16 Marek Polacek <polacek@redhat.com>
950 * call.c (add_list_candidates): Return if a designated initializer
951 is used with a non-aggregate.
952 (implicit_conversion_error): Give an error for the case above.
954 2020-06-16 Marek Polacek <polacek@redhat.com>
957 * name-lookup.c (check_local_shadow): Check if types are
958 non-null before calling same_type_p.
960 2020-06-16 Jakub Jelinek <jakub@redhat.com>
962 * semantics.c (handle_omp_for_class_iterator): Adjust
963 c_omp_check_loop_iv_exprs caller.
964 (finish_omp_for): Likewise. Don't call fold_build_cleanup_point_expr
965 before calling c_finish_omp_for and c_omp_check_loop_iv, move it
967 * pt.c (tsubst_omp_for_iterator): Handle non-rectangular loops.
969 2020-06-16 Jakub Jelinek <jakub@redhat.com>
971 * parser.c (cp_parser_omp_clause_schedule): Reject modifier separated
972 from kind by comma rather than colon.
974 2020-06-16 Patrick Palka <ppalka@redhat.com>
976 * pt.c (perform_instantiation_time_access_checks): No need to
978 * semantics.c (enforce_access): Verify that decl is not
981 2020-06-16 Patrick Palka <ppalka@redhat.com>
985 * cp-tree.h (qualified_typedef_usage_s): Delete.
986 (qualified_typedef_usage_t): Delete.
987 (deferred_access_check): Move up in file.
988 (tree_template_info::typedefs_needing_access_checking): Delete.
989 (tree_template_info::deferred_access_checks): New field.
990 (TI_TYPEDEFS_NEEDING_ACCESS_CHECKING): Rename to ...
991 (TI_DEFERRED_ACCESS_CHECKS): ... this, and adjust accordingly.
992 * pt.c (perform_typedefs_access_check): Rename to ...
993 (perform_instantiation_time_access_checks): ... this, and adjust
994 accordingly. Remove unnecessary tree tests.
995 (instantiate_class_template_1): Adjust accordingly.
996 (instantiate_decl): Likewise.
997 * semantics.c (enforce_access): Likewise.
999 2020-06-16 Patrick Palka <ppalka@redhat.com>
1003 * call.c (enforce_access): Move to semantics.c.
1004 * cp-tree.h (enforce_access): Delete.
1005 (get_types_needing_access_check): Delete.
1006 (add_typedef_to_current_template_for_access_check): Delete.
1007 * decl.c (make_typename_type): Adjust accordingly. Use
1008 check_accessibility_of_qualified_id instead of directly using
1009 perform_or_defer_access_check.
1010 * parser.c (cp_parser_template_declaration_after_parameters):
1011 Don't push a dk_no_check access state when parsing a template.
1012 * pt.c (get_types_needing_access_check): Delete.
1013 (append_type_to_template_for_access_check_1): Delete.
1014 (perform_typedefs_access_check): Adjust. If type_decl is a
1015 FIELD_DECL, also check its DECL_CONTEXT for dependence. Use
1016 tsubst_copy instead of tsubst to substitute into type_decl so
1017 that we substitute into the DECL_CONTEXT of a FIELD_DECL.
1018 (append_type_to_template_for_access_check): Delete.
1019 * search.c (accessible_p): Remove the processing_template_decl
1021 * semantics.c (enforce_access): Moved from call.c. If we're
1022 parsing a template and the access check failed, add the check to
1023 TI_TYPEDEFS_NEEDING_ACCESS_CHECKING.
1024 (perform_or_defer_access_check): Adjust comment.
1025 (add_typedef_to_current_template_for_access_check): Delete.
1026 (check_accessibility_of_qualified_id): Adjust accordingly.
1027 Exit early if the scope is dependent.
1029 2020-06-11 Patrick Palka <ppalka@redhat.com>
1032 * constraint.cc (associate_classtype_constraints): If there is a
1033 discrepancy between the current template depth and the template
1034 depth of the original declaration, then adjust the template
1035 parameter depth within the current constraints appropriately.
1036 * pt.c (tsubst_friend_class): Substitute into and set the
1037 constraints on the injected declaration.
1039 2020-06-11 Iain Sandoe <iain@sandoe.co.uk>
1041 * coroutines.cc (instantiate_coro_traits): Pass a reference
1042 to lambda closure objects to traits instantiation.
1043 (morph_fn_to_coro): Likewise for promise parameter
1044 preview and allocator lookup.
1046 2020-06-10 Iain Sandoe <iain@sandoe.co.uk>
1049 * call.c (add_candidates): Use vec_safe_length() for
1050 testing the arguments list.
1051 (build_new_method_call_1): Use vec_safe_is_empty() when
1052 checking for an empty args list.
1054 2020-06-10 Marek Polacek <polacek@redhat.com>
1057 * parser.c (cp_parser_direct_declarator): Clear
1058 CP_PARSER_FLAGS_DELAY_NOEXCEPT if the declarator kind is not
1061 2020-06-09 Iain Sandoe <iain@sandoe.co.uk>
1064 * coroutines.cc (expand_one_await_expression): Build separate
1065 DTOR trees for the awaitable object on the destroy and resume
1068 2020-06-09 Jason Merrill <jason@redhat.com>
1071 * cp-gimplify.c (predeclare_vla): Only predeclare a VLA if it's
1072 wrapped in a pointer type.
1074 2020-06-05 Marek Polacek <polacek@redhat.com>
1077 * call.c (build_converted_constant_expr_internal): Allow
1078 list-initialization.
1080 2020-06-05 Iain Sandoe <iain@sandoe.co.uk>
1082 * cp-tree.def (CO_RETURN_EXPR): Correct the class
1083 to use tcc_statement.
1085 2020-06-05 Jason Merrill <jason@redhat.com>
1087 * error.c (dump_binary_op): Handle negative operand to
1090 2020-06-04 Jason Merrill <jason@redhat.com>
1093 * constexpr.c (cxx_eval_constant_expression) [OBJ_TYPE_REF]:
1094 Evaluate OBJ_TYPE_REF_EXPR.
1096 2020-06-04 Jason Merrill <jason@redhat.com>
1099 * class.c (lookup_vfn_in_binfo): New.
1100 * call.c (build_over_call): Use it.
1101 * cp-tree.h (resolves_to_fixed_type_p): Add default argument.
1102 (lookup_vfn_in_binfo): Declare.
1104 2020-06-04 Iain Sandoe <iain@sandoe.co.uk>
1107 * coroutines.cc (morph_fn_to_coro): Ensure that the get-
1108 return-object is constructed correctly; When it is not the
1109 final return value, pass it to the CTOR of the return type
1110 as an rvalue, per the standard comment.
1112 2020-06-04 Jakub Jelinek <jakub@redhat.com>
1116 * constexpr.c (cxx_eval_constant_expression): Diagnose CONVERT_EXPR
1117 conversions from pointer types to arithmetic types here...
1118 (cxx_eval_outermost_constant_expr): ... instead of here.
1120 2020-06-03 Mark Wielaard <mark@klomp.org>
1122 * parser.c (cp_lexer_safe_previous_token): New function.
1123 (cp_parser_error_1): Add name_hint if the previous token is
1124 a string literal and next token is a CPP_NAME and we have a
1125 missing header suggestion for the name.
1127 2020-06-03 Patrick Palka <ppalka@redhat.com>
1129 * pt.c (process_partial_specialization): Pass the full set of
1130 generic template arguments to strictly_subsumes.
1132 2020-06-03 Patrick Palka <ppalka@redhat.com>
1135 * pt.c (most_specialized_partial_spec): Reorganize the loop over
1136 DECL_TEMPLATE_SPECIALIZATIONS. Check constraints_satisfied_p on
1137 the original template declaration, not on the tsubsted one.
1139 2020-06-03 Iain Sandoe <iain@sandoe.co.uk>
1142 * coroutines.cc (finish_co_await_expr): Revise to allow for
1144 (finish_co_yield_expr): Likewise.
1146 2020-06-03 Jason Merrill <jason@redhat.com>
1149 * cp-tree.h (predeclare_vla): Declare.
1150 * cp-gimplify.c (predeclare_vla): Handle getting a decl.
1151 * pt.c (tsubst_expr) [DECL_EXPR]: Use it.
1153 2020-06-03 Tobias Burnus <tobias@codesourcery.com>
1155 * cp-gimplify.c (cxx_omp_predetermined_mapping): New.
1156 * cp-objcp-common.h (LANG_HOOKS_OMP_PREDETERMINED_MAPPING): Redfine.
1157 * cp-tree.h (cxx_omp_predetermined_mapping): Declare.
1159 2020-06-02 Jason Merrill <jason@redhat.com>
1162 * pt.c (tsubst_decl): Relax assert.
1164 2020-06-02 Iain Sandoe <iain@sandoe.co.uk>
1167 * coroutines.cc (build_co_await): Wrap the co_await expression
1168 in a TARGET_EXPR, where needed.
1169 (finish_co_yield_expr): Likewise.
1171 2020-06-02 Patrick Palka <ppalka@redhat.com>
1175 * pt.c (tsubst_function_decl): Don't do set_constraints when
1176 regenerating a lambda.
1177 (tsubst_lambda_expr): Substitute into the lambda's constraints
1178 and do set_constraints here.
1180 2020-06-01 Jason Merrill <jason@redhat.com>
1185 * class.c (build_vfn_ref): Revert 95311 change.
1186 * cp-ubsan.c (cp_ubsan_maybe_instrument_member_call): Build a
1189 2020-06-01 Iain Sandoe <iain@sandoe.co.uk>
1192 * coroutines.cc (struct param_info): Remove rv_ref field.
1193 (build_actor_fn): Remove specifial rvalue ref handling.
1194 (morph_fn_to_coro): Likewise.
1196 2020-05-31 Iain Sandoe <iain@sandoe.co.uk>
1199 * coroutines.cc (morph_fn_to_coro): If we see an
1200 early fatal error, drop the erroneous function body.
1202 2020-05-31 Iain Sandoe <iain@sandoe.co.uk>
1204 * coroutines.cc (build_co_await): Remove unused
1206 (finish_co_await_expr): Likewise.
1207 (finish_co_yield_expr): Likewise; revise comment.
1209 2020-05-30 Iain Sandoe <iain@sandoe.co.uk>
1211 * coroutines.cc (morph_fn_to_coro): Revise initialization
1212 of the frame pointer to avoid an unused value.
1214 2020-05-30 Patrick Palka <ppalka@redhat.com>
1217 * constraint.cc (satisfaction_value): Accept INTEGER_CST of any
1220 2020-05-29 Patrick Palka <ppalka@redhat.com>
1221 Jason Merrill <jason@redhat.com>
1224 * class.c (add_method): Let special member function templates
1225 coexist if they are not equivalently constrained, or in a class
1228 2020-05-29 Jason Merrill <jason@redhat.com>
1231 * pt.c (process_template_parm): Set DECL_TEMPLATE_INFO
1232 on the DECL_TEMPLATE_RESULT.
1234 2020-05-29 Marek Polacek <polacek@redhat.com>
1237 * cp-gimplify.c (cp_fold) <case MODIFY_EXPR>: Don't set
1238 TREE_THIS_VOLATILE here.
1239 (cp_fold): Set it here along with TREE_NO_WARNING.
1241 2020-05-29 Jason Merrill <jason@redhat.com>
1245 * class.c (build_vfn_ref): Don't fold the INDIRECT_REF.
1247 2020-05-29 Patrick Palka <ppalka@redhat.com>
1252 * parser.c (cp_parser_requires_clause_expression): Temporarily
1253 increment processing_template_decl only if it is 0.
1254 (cp_parser_constraint_expression): Likewise.
1255 (cp_parser_requires_expression): Likewise.
1257 2020-05-29 Patrick Palka <ppalka@redhat.com>
1260 * constexpr.c (get_or_insert_ctor_field): Add limited support
1261 for RANGE_EXPR index lookups.
1263 2020-05-28 Jakub Jelinek <jakub@redhat.com>
1266 * decl.c (cp_finish_decomp): Call complete_type before checking
1269 2020-05-28 Jason Merrill <jason@redhat.com>
1272 * decl.c (cp_finish_decl): Revert r9-297 change.
1273 (check_static_variable_definition): Likewise.
1274 * constexpr.c (ensure_literal_type_for_constexpr_object): Likewise.
1275 * pt.c (instantiate_decl): Return early on type error.
1277 2020-05-27 Jason Merrill <jason@redhat.com>
1280 * decl.c (reshape_init_array_1): Don't reuse in overload context.
1282 2020-05-27 Jason Merrill <jason@redhat.com>
1285 * call.c (build_new_op_1): Suppress
1286 warn_zero_as_null_pointer_constant across comparison of <=> result
1289 2020-05-27 Jason Merrill <jason@redhat.com>
1292 * decl.c (grokdeclarator): Don't shift attributes in TYPENAME
1295 2020-05-27 Nathan Sidwell <nathan@acm.org>
1298 * pt.c (lookup_template_class_1): Restore alias template mutation.
1300 2020-05-26 Jakub Jelinek <jakub@redhat.com>
1303 * cp-gimplify.c: Include omp-general.h.
1304 (cp_genericize_r) <case OMP_DISTRIBUTE>: For class iteration
1305 variables in composite distribute parallel for, instantiate copy
1306 ctor of their types.
1308 2020-05-23 Patrick Palka <ppalka@redhat.com>
1311 * constexpr.c (cxx_eval_constant_expression)
1312 <case TEMPLATE_ID_EXPR>: Don't evaluate the concept when
1313 constexpr evaluation is uid-sensitive.
1315 2020-05-22 Jason Merrill <jason@redhat.com>
1317 * cp-gimplify.c (cp_gimplify_expr) [CALL_EXPR]: Don't preevaluate
1318 the function address if the call used operator syntax.
1320 2020-05-21 Jason Merrill <jason@redhat.com>
1323 * cp-ubsan.c (cp_ubsan_maybe_instrument_member_call): For a virtual
1324 call, instrument the OBJ_TYPE_REF.
1326 * decl.c (compute_array_index_type_loc): Diagnose expressions
1327 in a template that can't be constant.
1328 * parser.c (cp_parser_direct_declarator): Don't check
1329 non-constant array bounds here.
1331 * cp-tree.h (is_rvalue_constant_expression): Declare.
1332 * constexpr.c (is_rvalue_constant_expression): New.
1333 * parser.c (cp_parser_constant_expression): Use it.
1334 * decl.c (cp_finish_decl): Try to treat a constexpr initializer in a
1335 template as constant.
1337 * typeck.c (build_x_modify_expr): Handle error_mark_node arguments.
1339 * decl.c (grokparms): Return NULL_TREE if any parms were erroneous.
1341 2020-05-21 Iain Sandoe <iain@sandoe.co.uk>
1343 * coroutines.cc (finish_co_return_stmt): Revert change to use
1346 2020-05-21 Patrick Palka <ppalka@redhat.com>
1349 * constexpr.c (constexpr_ctx::uid_sensitive): Remove field.
1350 (uid_sensitive_constexpr_evaluation_value): Define.
1351 (uid_sensitive_constexpr_evaluation_true_counter): Define.
1352 (uid_sensitive_constexpr_evaluation_p): Define.
1353 (uid_sensitive_constexpr_evaluation_sentinel): Define its
1355 (uid_sensitive_constexpr_evaluation_checker): Define its
1356 constructor and its evaluation_restricted_p method.
1357 (get_fundef_copy): Remove 'ctx' parameter. Use u_s_c_e_p
1358 instead of constexpr_ctx::uid_sensitive.
1359 (cxx_eval_call_expression): Use u_s_c_e_p instead, and test it
1360 last. Adjust call to get_fundef_copy.
1361 (instantiate_cx_fn_r): Test u_s_c_e_p so that we increment the
1362 counter if necessary.
1363 (cxx_eval_outermost_constant_expr): Remove 'uid_sensitive'
1364 parameter. Adjust function body accordingly.
1365 (maybe_constant_value): Remove 'uid_sensitive' parameter and
1366 adjust function body accordingly. Set up a
1367 uid_sensitive_constexpr_evaluation_checker, and use it to
1368 conditionally update the cv_cache.
1369 * cp-gimplify.c (cp_fold): Set up a
1370 uid_sensitive_constexpr_evaluation_checker, and use it to
1371 conditionally update the fold_cache.
1372 * cp-tree.h (maybe_constant_value): Update declaration.
1373 (struct uid_sensitive_constexpr_evaluation_sentinel): Define.
1374 (struct sensitive_constexpr_evaluation_checker): Define.
1375 * expr.c (fold_for_warn): Set up a
1376 uid_sensitive_constexpr_evaluation_sentinel before calling
1377 the folding subroutines. Drop all but the first argument to
1378 maybe_constant_value.
1380 2020-05-20 Marek Polacek <polacek@redhat.com>
1383 * parser.c (cp_parser_unqualified_id): Reject simple-template-id as
1384 the declarator-id of a destructor.
1385 (cp_parser_constructor_declarator_p): Reject simple-template-id as
1386 the declarator-id of a constructor.
1388 2020-05-20 Marek Polacek <polacek@redhat.com>
1392 * cp-tree.h (SD_DECOMPOSITION): New flag.
1393 * decl.c (duplicate_decls): Make sure a structured binding is unique
1394 in its declarative region.
1395 (start_decl): If INITIALIZED is SD_DECOMPOSITION, call
1396 fit_decomposition_lang_decl.
1397 (grokdeclarator): Compare INITIALIZED directly to SD_* flags.
1398 * parser.c (cp_parser_decomposition_declaration): Pass SD_DECOMPOSITION
1401 2020-05-20 Patrick Palka <ppalka@redhat.com>
1404 * typeck.c (structural_comptypes): Don't perform
1405 context-dependent resolution of TYPENAME_TYPEs when
1406 comparing_specializations.
1408 2020-05-19 Nathan Sidwell <nathan@acm.org>
1410 * pt.c (lookup_template_class_1): Do not reinit template_info of an
1413 2020-05-18 Martin Sebor <msebor@redhat.com>
1416 * call.c ((maybe_warn_class_memaccess): Use is_byte_access_type.
1417 * cp-tree.h (is_dummy_object): Return bool.
1418 (is_byte_access_type): Declare new function.
1419 * tree.c (is_dummy_object): Return bool.
1420 (is_byte_access_type): Define new function.
1422 2020-05-19 Patrick Palka <ppalka@redhat.com>
1425 * pt.c (init_template_processing): Enable sanitization for
1426 decl_specializations and type_specializations.
1429 * pt.c (fn_type_unification): Pass 'fn' instead of NULL_TREE as
1430 the 'in_decl' parameter to coerce_template_parms.
1432 2020-05-18 Marek Polacek <polacek@redhat.com>
1435 * typeck.c (cp_build_binary_op): Use fold_for_warn instead of
1438 2020-05-18 Marek Polacek <polacek@redhat.com>
1441 * cvt.c (cp_get_fndecl_from_callee): Return NULL_TREE if the function
1442 type is not INDIRECT_TYPE_P.
1443 * decl.c (omp_declare_variant_finalize_one): Call
1444 cp_get_callee_fndecl_nofold instead of looking for the function decl
1447 2020-05-18 Marek Polacek <polacek@redhat.com>
1450 * parser.c (cp_parser_has_attribute_expression): Sorry on a
1451 type-dependent argument.
1453 2020-05-18 Marek Polacek <polacek@redhat.com>
1457 * call.c (add_builtin_candidate) <case EQ_EXPR>: Create candidate
1458 operator functions when type is std::nullptr_t for ==/!=.
1459 * typeck.c (composite_pointer_type_r): Add a bool * parameter. Use it
1460 to maybe add "const" to the pointer type.
1461 (composite_pointer_type): Update the call to composite_pointer_type_r.
1462 (cp_build_binary_op): Turn two warning_at into error_at. Print the
1465 2020-05-18 Jason Merrill <jason@redhat.com>
1467 * call.c (build_over_call): Remove unnecessary
1468 cp_stabilize_reference.
1470 2020-05-18 Marek Polacek <polacek@redhat.com>
1472 * call.c (add_builtin_candidate): Don't create a builtin overload
1473 candidate for ++ when type is bool in C++17.
1475 2020-05-18 Marek Polacek <polacek@redhat.com>
1477 * cfns.h: Regenerated.
1479 2020-05-17 Iain Sandoe <iain@sandoe.co.uk>
1481 * coroutines.cc (morph_fn_to_coro): Initialize the gro variable.
1483 2020-05-16 Iain Sandoe <iain@sandoe.co.uk>
1485 * coroutines.cc (finish_co_return_stmt): Implement rules
1486 from [class.copy.elision] /3.
1488 2020-05-16 Patrick Palka <ppalka@redhat.com>
1491 * semantics.c (finish_decltype_type): Call
1492 instantiate_non_dependent_expr_sfinae on the expression.
1494 2020-05-15 Patrick Palka <ppalka@redhat.com>
1498 2020-04-07 Patrick Palka <ppalka@redhat.com>
1501 * typeck2.c (process_init_constructor_array): Propagate
1502 CONSTRUCTOR_PLACEHOLDER_BOUNDARY up from each element initializer to
1503 the array initializer.
1505 2020-05-15 Jason Merrill <jason@redhat.com>
1507 PR c++/93286 - ICE with __is_constructible and variadic template.
1508 * pt.c (tsubst_tree_list): New.
1509 (tsubst, tsubst_copy_and_build): Use it.
1510 * decl2.c (is_late_template_attribute): Handle error_mark_node args.
1512 2020-05-15 Nathan Sidwell <nathan@acm.org>
1514 * pt.c (template_args_equal): Fix thinkos in previous 'cleanup'.
1516 2020-05-14 Jason Merrill <jason@redhat.com>
1519 * pt.c (maybe_instantiate_noexcept): Change clone handling.
1521 2020-05-14 Patrick Palka <ppalka@redhat.com>
1524 * call.c (build_op_call): Pass complain to lookup_fnfields.
1525 (build_special_member_call): Likewise.
1526 * class.c (type_requires_array_cookie): Pass tf_warning_or_error
1528 * cp-tree.h (lookup_fnfields): Add tsubst_flags_t parameter.
1529 * except.c (build_throw): Pass tf_warning_or_error to
1531 * init.c (build_new_1): Pass complain to lookup_fnfields.
1532 * method.c (locate_fn_flags): Likewise.
1533 * name-lookup.c (lookup_name_real_1): Pass tf_warning_or_error
1535 * pt.c (tsubst_baselink): Pass complain to lookup_fnfields.
1536 * search.c (lookup_fnfields): New 'complain' parameter. Pass it
1539 2020-05-14 Nathan Sidwell <nathan@acm.org>
1541 * parser.c (cp_parser_diagnose_invalid_typename): Mention
1542 std=c++20 not 2a, reformat dependent binfo inform loops.
1544 * pt.c (tsubst_template_decl): Reorder and commonize some control
1547 * pt.c (tsubst_friend_function): Simplify control flow.
1549 * pt.c (lookup_template_class_1): Remove unnecessary else by
1550 simply grabbing TYPE_NAME earlier.
1552 * pt.c (push_template_decl_real): Adjust friend pushing logic.
1553 Reinit template type.
1555 * pt.c (build_template_decl): Init DECL_TEMPLATE_RESULT &
1557 (process_partial_specialization): ... not here ...
1558 (push_template_decl_real, add_inherited_template_parms)
1559 (build_deduction_guide): ... or here.
1561 2020-05-14 Jakub Jelinek <jakub@redhat.com>
1563 * cp-gimplify.c (cp_genericize_r): Set cfun->has_omp_target.
1565 2020-05-13 Patrick Palka <ppalka@redhat.com>
1568 * init.c (build_vec_delete_1): Just return error_mark_node if
1569 deallocate_expr is error_mark_node.
1570 (build_delete): Just return error_mark_node if do_delete is
1573 2020-05-13 Patrick Palka <ppalka@redhat.com>
1576 * constraint.cc (tsubst_requires_expr): Produce a new
1577 requires-expression when processing_template_decl, even if
1578 template arguments are not dependent.
1580 2020-05-13 Marek Polacek <polacek@redhat.com>
1583 * decl.c (duplicate_decls): Set DECL_HAS_DEPENDENT_EXPLICIT_SPEC_P.
1585 2020-05-13 Nathan Sidwell <nathan@acm.org>
1587 * pt.c (template_args_equal): Reorder category checking for
1590 * pt.c (perform_typedefs_access_check): Cache expensively
1591 calculated object references.
1592 (check_auto_in_tmpl_args): Just assert we do not get unexpected
1593 nodes, rather than silently do nothing.
1594 (append_type_to_template_for_access): Likewise, cache expensie
1597 * pt.c (canonical_type_parameter): Simplify.
1599 Formatting fixups & some simplifications.
1600 * pt.c (spec_hash_table): New typedef.
1601 (decl_specializations, type_specializations): Use it.
1602 (retrieve_specialization): Likewise.
1603 (register_specialization): Remove unnecessary casts.
1604 (push_template_decl_real): Reformat.
1605 (instantiate_class_template_1): Use more RAII.
1606 (make_argument_pack): Simplify.
1607 (instantiate_template_1): Use gcc_checking_assert for expensive
1609 (instantiate_decl): Likewise.
1610 (resolve_typename_type): Reformat comment.
1611 * semantics.c (struct deferred_access): Remove unnecessary GTY on
1613 (begin_class_definition): Fix formatting.
1615 2020-05-13 Jason Merrill <jason@redhat.com>
1617 * call.c, class.c, constexpr.c, constraint.cc, decl.c, init.c,
1618 lambda.c, lex.c, method.c, name-lookup.c, parser.c, pt.c, tree.c,
1619 typeck2.c: Change cxx2a to cxx20.
1621 2020-05-12 Marek Polacek <polacek@redhat.com>
1624 * parser.c (cp_parser_postfix_expression) <case CPP_OPEN_PAREN>: When
1625 looking for a block-scope function declaration, look through the whole
1626 set, not just the first function in the overload set.
1628 2020-05-12 Jakub Jelinek <jakub@redhat.com>
1631 * pt.c (tsubst_decl): Deal with DECL_OMP_PRIVATIZED_MEMBER for
1634 2020-05-11 Jason Merrill <jason@redhat.com>
1636 Resolve C++20 NB comment CA104
1637 * pt.c (determine_specialization): Compare constraints for
1638 specialization of member template of class instantiation.
1640 2020-05-11 Jason Merrill <jason@redhat.com>
1644 * tree.c (cp_walk_subtrees): Stop at typedefs.
1645 Handle TYPENAME_TYPE here.
1646 * pt.c (find_parameter_packs_r): Not here.
1647 (for_each_template_parm_r): Clear *walk_subtrees.
1648 * decl2.c (min_vis_r): Look through typedefs.
1650 2020-05-11 Jason Merrill <jason@redhat.com>
1652 * call.c (implicit_conversion_error): Split out from...
1653 (perform_implicit_conversion_flags): ...here.
1654 (build_converted_constant_expr_internal): Use it.
1656 2020-05-11 Jason Merrill <jason@redhat.com>
1659 * parser.c (inject_parm_decls): Set current_class_ptr here.
1660 (cp_parser_direct_declarator): And here.
1661 (cp_parser_late_return_type_opt): Not here.
1662 (cp_parser_noexcept_specification_opt): Nor here.
1663 (cp_parser_exception_specification_opt)
1664 (cp_parser_late_noexcept_specifier): Remove unneeded parameters.
1666 2020-05-11 Jason Merrill <jason@redhat.com>
1668 * decl.c (cxx_init_decl_processing): Call declare_weak for
1671 2020-05-11 Jason Merrill <jason@redhat.com>
1673 * pt.c (instantiate_class_template_1): Call tsubst_expr for
1674 STATIC_ASSERT member.
1675 * ptree.c (cxx_print_xnode): Handle STATIC_ASSERT.
1677 2020-05-11 Jason Merrill <jason@redhat.com>
1679 * pt.c (find_parameter_packs_r) [LAMBDA_EXPR]: Remove redundant
1680 walking of capture list.
1682 2020-05-11 Jason Merrill <jason@redhat.com>
1684 * cp-tree.h (LOOKUP_EXPLICIT_TMPL_ARGS): Remove.
1685 * call.c (build_new_function_call): Don't set it.
1686 (build_new_method_call_1): Likewise.
1687 (build_over_call): Check cand->explicit_targs instead.
1689 2020-05-11 Jason Merrill <jason@redhat.com>
1691 * decl.c (compute_array_index_type_loc): Stabilize before building
1694 2020-05-11 Jason Merrill <jason@redhat.com>
1696 * decl.c (grokdeclarator): Adjust deprecated_state here.
1697 (start_decl): Not here.
1699 2020-05-08 Iain Sandoe <iain@sandoe.co.uk>
1702 * coroutines.cc (build_actor_fn): Ensure that bind scopes
1703 are marked as having side-effects where necessary.
1704 (replace_statement_captures): Likewise.
1705 (morph_fn_to_coro): Likewise.
1707 2020-05-08 Nathan Sidwell <nathan@acm.org>
1709 * NEWS: Delete, it is so stale.
1711 * parser.c (cp_lexer_set_source_position_from_token): EOF has a
1714 2020-05-07 Iain Sandoe <iain@sandoe.co.uk>
1718 * coroutines.cc (morph_fn_to_coro): Set unformed outline
1719 functions to error_mark_node. For early error returns suppress
1720 warnings about missing ramp return values. Fix reinstatement
1721 of the function body on pre-existing initial error.
1722 * decl.c (finish_function): Use the normal error path for fails
1723 in the ramp function, do not try to compile the helpers if the
1726 2020-05-07 Marek Polacek <polacek@redhat.com>
1728 PR c++/94590 - Detect long double -> double narrowing.
1729 * typeck2.c (check_narrowing): Detect long double -> double
1730 narrowing even when double and long double have the same
1731 precision. Make it handle conversions to float too.
1733 2020-05-07 Marek Polacek <polacek@redhat.com>
1736 * parser.c (cp_parser_class_specifier_1): Check that the scope is
1737 nested inside current scope before pushing it.
1739 2020-05-07 Marek Polacek <polacek@redhat.com>
1742 * typeck2.c (check_narrowing): Consider T* to bool narrowing
1745 2020-05-07 Marek Polacek <polacek@redhat.com>
1747 * decl.c (grok_op_properties): Fix spelling of non-static.
1748 * typeck.c (build_class_member_access_expr): Likewise.
1750 2020-05-07 Richard Biener <rguenther@suse.de>
1753 * optimize.c (update_cloned_parm): Copy DECL_NOT_GIMPLE_REG_P.
1755 2020-05-06 Marek Polacek <polacek@redhat.com>
1758 * pt.c (tsubst_copy_and_build): Call type_dependent_expression_p_push
1759 instead of uses_template_parms. Move the warning_sentinels after the
1762 2020-05-06 Jakub Jelinek <jakub@redhat.com>
1765 * typeck.c (cp_strict_aliasing_warning): New function.
1766 (cp_build_indirect_ref_1, build_reinterpret_cast_1): Use
1767 it instead of strict_aliasing_warning.
1770 * method.c (defaulted_late_check): Don't call synthesize_method
1771 on constexpr sfk_comparison if it has been called on it already.
1773 2020-05-06 Nathan Sidwell <nathan@acm.org>
1776 * decl.c (grokdeclarator): Don't splice template attributes in
1777 parm context -- they can apply to the parm.
1779 2020-05-05 Iain Sandoe <iain@sandoe.co.uk>
1781 * coroutines.cc: Remove references to n4849 throughout.
1783 2020-05-05 Jason Merrill <jason@redhat.com>
1786 * pt.c (more_specialized_fn): Do consider parms with no deducible
1787 template parameters.
1789 2020-05-05 Jason Merrill <jason@redhat.com>
1792 * constexpr.c (potential_constant_expression_1): In a lambda
1793 function, consider a captured variable directly.
1795 2020-05-05 Iain Sandoe <iain@sandoe.co.uk>
1797 * coroutines.cc (transform_await_wrapper): Check that we have
1798 no unlowered co_yields.
1799 (captures_temporary): Likewise.
1800 (register_awaits): Likewise.
1802 2020-05-05 Nathan Sidwell <nathan@acm.org>
1805 * coroutines.cc (morph_fn_to_coro): Just check for
1807 * pt.c (tsubst_function_decl): Update lambda fn's this_ptr name.
1809 2020-05-05 Marek Polacek <polacek@redhat.com>
1810 Jason Merrill <jason@redhat.com>
1813 * parser.c (cp_parser_postfix_dot_deref_expression): If we have
1814 a type-dependent object of class type, stash it to
1815 parser->context->object_type. If the postfix expression doesn't have
1817 (cp_parser_class_name): Consider object scope too.
1818 (cp_parser_lookup_name): Remove code dealing with the case when
1819 object_type is unknown_type_node.
1821 2020-05-04 Patrick Palka <ppalka@redhat.com>
1824 * cp-gimplify.c (cp_fold) <case CALL_EXPR>: Move some variable
1825 declarations closer to their uses. Copy the CALL_EXPR only
1826 when one of its arguments has changed.
1827 <case TREE_VEC>: Instead of first collecting the folded
1828 arguments into a releasing_vec, just make a copy of the TREE_VEC
1829 as soon as folding changes one of its arguments.
1831 2020-05-04 Iain Sandoe <iain@sandoe.co.uk>
1833 * coroutines.cc (morph_fn_to_coro): Mark the coro.gro variable
1834 as artificial and ignored.
1836 2020-05-04 Nathan Sidwell <nathan@acm.org>
1838 pt.c (process_template_parm): Don't walk the template list twice,
1839 remember the final node instead.
1840 (end_template_parm_list): Refactor. Comment on why we do a pop
1843 PR c++/94827 -- don't save parms in nested requirement
1844 * constraint.cc (tsubst_nested_requirement): TYPE directly holds
1845 notmalized requirement.
1846 (finish_nested_requirement): Don't stash current tpl parms into
1848 (diagnose_nested_requirement): TYPE directly holds notmalized
1851 2020-05-01 Patrick Palka <ppalka@redhat.com>
1854 * cp-tree.h (check_accessibility_of_qualified_id): Add
1855 tsubst_flags_t parameter and change return type to bool.
1856 * parser.c (cp_parser_lookup_name): Pass tf_warning_to_error to
1857 check_accessibility_of_qualified_id.
1858 * pt.c (tsubst_qualified_id): Return error_mark_node if
1859 check_accessibility_of_qualified_id returns false.
1860 * semantics.c (check_accessibility_of_qualified_id): Add
1861 complain parameter. Pass complain instead of
1862 tf_warning_or_error to perform_or_defer_access_check. Return
1863 true unless perform_or_defer_access_check returns false.
1865 2020-05-01 Marek Polacek <polacek@redhat.com>
1868 * typeck2.c (process_init_constructor_record): Return PICFLAG_ERRONEOUS
1869 if an initializer element was erroneous.
1871 2020-05-01 Jason Merrill <jason@redhat.com>
1874 * init.c (get_nsdmi): Don't push_to_top_level for a local class.
1876 2020-05-01 Jason Merrill <jason@redhat.com>
1879 * decl.c (cp_finish_decl): Also clear TREE_READONLY if
1880 -fmerge-all-constants.
1882 2020-05-01 Jason Merrill <jason@redhat.com>
1885 * pt.c (tsubst_decl): Make sure DECL_VALUE_EXPR continues to have
1886 the same type as the variable.
1888 2020-04-30 Jason Merrill <jason@redhat.com>
1889 Nathan Sidwell <nathan@acm.org>
1892 * constraint.cc (map_arguments): If ARGS is null, it's a
1893 self-mapping of parms.
1894 (finish_nested_requirement): Do not pass argified
1895 current_template_parms to normalization.
1896 (tsubst_nested_requirement): Don't assert no template parms.
1898 2020-04-30 Iain Sandoe <iain@sandoe.co.uk>
1901 * coroutines.cc (transform_local_var_uses): Defer walking
1902 the DECL_INITIALs of BIND_EXPR vars until all the frame
1903 allocations have been made.
1905 2020-04-30 Iain Sandoe <iain@sandoe.co.uk>
1908 * coroutines.cc (register_awaits): Update target
1909 expressions for awaitable and suspend handle
1912 2020-04-30 Iain Sandoe <iain@sandoe.co.uk>
1915 * coroutines.cc (build_co_await): Account for variables
1916 with DECL_VALUE_EXPRs.
1917 (captures_temporary): Likewise.
1918 (register_awaits): Likewise.
1920 2020-04-29 Patrick Palka <ppalka@redhat.com>
1923 * pt.c (find_template_parameter_info::parm_list): New field.
1924 (keep_template_parm): Use the new field to build up the
1925 parameter list here instead of ...
1926 (find_template_parameters): ... here. Return ftpi.parm_list.
1928 2020-04-29 Jakub Jelinek <jakub@redhat.com>
1931 * class.c (build_base_field): Set DECL_FIELD_ABI_IGNORED on C++17 empty
1932 base artificial FIELD_DECLs.
1933 (layout_class_type): Set DECL_FIELD_ABI_IGNORED on empty class
1934 field_poverlapping_p FIELD_DECLs.
1936 2020-04-29 Patrick Palka <ppalka@redhat.com>
1939 * constraint.cc (satisfy_declaration_constraints): Use saved_t
1940 instead of t as the key to decl_satisfied_cache.
1943 * error.c (print_requires_expression_info): Print the dependent
1944 form of the parameter list with its template parameter mapping,
1945 rather than printing the substituted form.
1947 2020-04-28 Jason Merrill <jason@redhat.com>
1950 * decl.c (use_eh_spec_block): Check nothrow type after
1952 * pt.c (maybe_instantiate_noexcept): Call synthesize_method for
1953 DECL_MAYBE_DELETED fns here.
1954 * decl2.c (mark_used): Not here.
1955 * method.c (get_defaulted_eh_spec): Reject DECL_MAYBE_DELETED here.
1957 2020-04-28 Iain Sandoe <iain@sandoe.co.uk>
1960 * coroutines.cc (instantiate_coro_traits): Pass a reference to
1961 object type rather than a pointer type for 'this', for method
1963 (struct param_info): Add a field to hold that the parm is a lambda
1965 (morph_fn_to_coro): Check for lambda closure pointers in the
1966 args. Use a reference to *this when building the args list for the
1967 promise allocator lookup.
1969 2020-04-28 Iain Sandoe <iain@sandoe.co.uk>
1972 * coroutines.cc (coro_promise_type_found_p): Do not
1973 exclude non-classes here (this needs to be handled in the
1975 (morph_fn_to_coro): Allow for the case where the coroutine
1978 2020-04-27 Iain Sandoe <iain@sandoe.co.uk>
1981 * coroutines.cc (struct local_var_info): Add fields for static
1982 variables and those with DECL_VALUE_EXPR redirection.
1983 (transform_local_var_uses): Skip past typedefs and static vars
1984 and then account for redirected variables.
1985 (register_local_var_uses): Likewise.
1987 2020-04-27 Jason Merrill <jason@redhat.com>
1991 * decl.c (grokdeclarator): Move dependent attribute to decl.
1992 * decl2.c (splice_template_attributes): No longer static.
1994 2020-04-27 Patrick Palka <ppalka@redhat.com>
1997 * constexpr.c (cxx_eval_call_expression): Don't set new_obj if we're
1998 evaluating the target constructor of a delegating constructor.
1999 (cxx_eval_store_expression): Don't set TREE_READONLY if the LHS of the
2000 INIT_EXPR is '*this'.
2002 2020-04-26 Marek Polacek <polacek@redhat.com>
2005 * call.c (struct conversion): Add copy_init_p.
2006 (standard_conversion): Set copy_init_p in ck_base and ck_rvalue
2007 if FLAGS demands LOOKUP_ONLYCONVERTING.
2008 (convert_like_real) <case ck_base>: If copy_init_p is set, or
2009 LOOKUP_ONLYCONVERTING into FLAGS.
2011 2020-04-26 Iain Sandoe <iain@sandoe.co.uk>
2014 * coroutines.cc (morph_fn_to_coro): Ensure that
2015 unnamed function params have a usable and distinct
2018 2020-04-24 Jason Merrill <jason@redhat.com>
2021 * decl.c (redeclaration_error_message): Reject defaulted comparison
2022 operator that has been previously declared.
2024 2020-04-25 Patrick Palka <ppalka@redhat.com>
2026 * parser.c (cp_parser_diagnose_invalid_type_name): Suggest enabling
2027 concepts if the invalid identifier is 'requires'.
2029 2020-04-25 Jakub Jelinek <jakub@redhat.com>
2032 * semantics.c (finish_call_expr): When looking if all overloads
2033 are noreturn, use STRIP_TEMPLATE to look through TEMPLATE_DECLs.
2035 2020-04-24 Martin Liska <mliska@suse.cz>
2037 * coroutines.cc: Fix compilation error for release checking
2038 where we miss declaration of ‘coro_body_contains_bind_expr_p’.
2040 2020-04-23 Patrick Palka <ppalka@redhat.com>
2042 * tree.c (zero_init_expr_p): Use uses_template_parms instead of
2046 * pt.c (template_class_depth): Walk into the DECL_FRIEND_CONTEXT of a
2047 friend declaration rather than into its CP_DECL_CONTEXT.
2049 2020-04-23 Iain Sandoe <iain@sandoe.co.uk>
2052 * coroutines.cc (await_statement_expander): Simplify cases.
2053 (struct susp_frame_data): Add fields for truth and/or if
2054 cases, rename one field.
2055 (analyze_expression_awaits): New.
2056 (expand_one_truth_if): New.
2057 (add_var_to_bind): New helper.
2058 (coro_build_add_if_not_cond_break): New helper.
2059 (await_statement_walker): Handle conditional expressions,
2060 handle expansion of truth-and/or-if cases.
2061 (bind_expr_find_in_subtree): New, checking-only.
2062 (coro_body_contains_bind_expr_p): New, checking-only.
2063 (morph_fn_to_coro): Ensure that we have a top level bind
2066 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
2068 PR translation/94698
2069 * class.c (check_field_decls): Change "define" to "declare" in
2070 -Weffc++ diagnostics.
2072 2020-04-22 Patrick Palka <ppalka@redhat.com>
2076 * constraint.cc (satisfy_declaration_constraints): If the inherited
2077 constructor points to an instantiation of a constructor template,
2078 remember and use its attached template arguments.
2080 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
2082 PR translation/94698
2083 * class.c (check_field_decls): Change "override" to "define" in
2084 -Weffc++ diagnostics.
2086 2020-04-22 Iain Sandoe <iain@sandoe.co.uk>
2089 * coroutines.cc (struct param_info): Add a field to note that
2090 the param is 'this'.
2091 (morph_fn_to_coro): Convert this to a reference before using it
2092 in the promise parameter preview.
2094 2020-04-22 Jason Merrill <jason@redhat.com>
2097 * pt.c (register_parameter_specializations): If the instantiation is
2098 still a parameter pack, don't wrap it in a NONTYPE_ARGUMENT_PACK.
2099 (tsubst_pack_expansion, tsubst_expr): Adjust.
2101 2020-04-22 Martin Sebor <msebor@redhat.com>
2102 Jason Merrill <jason@redhat.com>
2105 * decl.c (reshape_init_array_1): Avoid stripping redundant trailing
2106 zero initializers...
2107 * mangle.c (write_expression): ...and handle them here even for
2108 pointers to members by calling zero_init_expr_p.
2109 * cp-tree.h (zero_init_expr_p): Declare.
2110 * tree.c (zero_init_expr_p): Define.
2111 (type_initializer_zero_p): Remove.
2112 * pt.c (tparm_obj_values): New hash_map.
2113 (get_template_parm_object): Store to it.
2114 (tparm_object_argument): New.
2116 2020-04-22 Patrick Palka <ppalka@redhat.com>
2119 * constraint.cc (diagnose_valid_expression): Check convert_to_void here
2120 as well as in tsubst_valid_expression_requirement.
2122 2020-04-21 Patrick Palka <ppalka@redhat.com>
2125 * constraint.cc (satisfy_declaration_constraints): Don't strip the
2126 inherited constructor if it already has template information.
2129 * pt.c (any_template_parm_r) <case IDENTIFIER_NODE>: New case. If this
2130 is a conversion operator, visit its TREE_TYPE.
2132 2020-04-21 Nathan Sidwell <nathan@acm.org>
2134 * pt.c (tsubst_copy_and_build) [POINTER_PLUS_EXPR]: Check for
2137 2020-04-21 Iain Sandoe <iain@sandoe.co.uk>
2140 * coroutines.cc (morph_fn_to_coro): Simplify return
2143 2020-04-17 Marek Polacek <polacek@redhat.com>
2146 * constexpr.c (cxx_eval_outermost_constant_expr): Return when T is
2147 a BRACE_ENCLOSED_INITIALIZER_P.
2148 (is_nondependent_constant_expression): Don't check
2149 BRACE_ENCLOSED_INITIALIZER_P.
2150 (is_nondependent_static_init_expression): Likewise.
2152 2020-04-20 Patrick Palka <ppalka@redhat.com>
2155 * cp-tree.h (lss_policy::lss_nop): New enumerator.
2156 * pt.c (local_specialization_stack::local_specialization_stack): Handle
2158 (local_specialization_stack::~local_specialization_stack): Likewise.
2159 (tsubst_pack_expansion): Use a local_specialization_stack instead of
2160 manually saving and restoring local_specializations. Conditionally
2161 replace local_specializations sooner, before the handling of the
2162 unsubstituted_packs case.
2164 2020-04-20 Marek Polacek <polacek@redhat.com>
2166 PR c++/94505 - bogus -Wparentheses warning with fold-expression.
2167 * pt.c (fold_expression): Add warning_sentinel for -Wparentheses
2168 before calling build_x_binary_op.
2170 2020-04-20 Marek Polacek <polacek@redhat.com>
2172 * coroutines.cc (captures_temporary): Don't assign the result of
2173 STRIP_NOPS to the same variable.
2175 2020-04-20 Nathan Sidwell <nathan@acm.org>
2177 PR c++/94454 - tpl-tpl-parms are not canonicalizable types
2178 * pt.c (canonical_type_parameter): Assert not a tpl-tpl-parm.
2179 (process_template_parm): tpl-tpl-parms are structural.
2180 (rewrite_template_parm): Propagate structuralness.
2182 PR c++/94454 - Expr pack expansion equality
2183 * tree.c (cp_tree_equal) [TEMPLATE_ID_EXPR, default]: Refactor.
2184 [EXPR_PACK_EXPANSION]: Add.
2186 PR c++/94454 Template Argument Hashing
2187 * pt.c (iterative_hash_template_arg): Strip nodes as
2188 template_args_equal does.
2189 [ARGUMENT_PACK_SELECT, TREE_VEC, CONSTRUCTOR]: Refactor.
2190 [node_class:TEMPLATE_TEMPLATE_PARM]: Hash by level & index.
2191 [node_class:default]: Refactor.
2193 2020-04-18 Patrick Palka <ppalka@redhat.com>
2196 * tree.c (cp_tree_equal) <case PARM_DECL>: Ignore
2197 comparing_specializations if the parameters' contexts are identical.
2200 * pt.c (splice_late_return_type): Propagate cv-qualifiers and
2201 PLACEHOLDER_TYPE_CONSTRAINTS from the original auto node to the new one.
2203 2020-04-17 Patrick Palka <ppalka@redhat.com>
2206 * lambda.c (lambda_capture_field_type): Avoid doing auto deduction if
2207 the explicit initializer has parameter packs.
2210 * parser.c (cp_parser_check_template_parameters): Before issuing a hard
2211 error, first try simulating an error instead.
2213 2020-04-17 Jakub Jelinek <jakub@redhat.com>
2216 * call.c (build_conditional_expr_1): Remove redundant assignment to
2219 2020-04-16 Patrick Palka <ppalka@redhat.com>
2222 * cvt.c (ocp_convert): If the result of scalar_constant_value is
2223 erroneous, ignore it and use the original expression.
2225 2020-04-16 Jakub Jelinek <jakub@redhat.com>
2228 * parser.c (cp_parser_simple_declaration): Fix up a pasto in
2231 2020-04-15 Jakub Jelinek <jakub@redhat.com>
2234 * parser.c (cp_parser_pragma) <case PRAGMA_OMP_REQUIRES>: Reject
2235 requires directive when not at file or namespace scope.
2237 2020-04-14 Iain Sandoe <iain@sandoe.co.uk>
2240 * coroutines.cc (build_actor_fn): Check that the target can
2241 support the resume tailcall before mandating it.
2243 2020-04-14 Patrick Palka <ppalka@redhat.com>
2246 * cxx-pretty-print.c (cxx_pretty_printer:simple_type_specifier)
2247 <case DECLTYPE_TYPE>: Handle DECLTYPE_TYPE here instead of ...
2248 (pp_cxx_type_specifier_seq) <case DECLTYPE_TYPE>: ... here.
2249 (cxx_pretty_printer::direct_abstract_declarator) <case DECLTYPE_TYPE>:
2253 * constexpr.c (replace_result_decl_data): New struct.
2254 (replace_result_decl_data_r): New function.
2255 (replace_result_decl): New function.
2256 (cxx_eval_call_expression): Use it.
2257 * tree.c (build_aggr_init_expr): Set the location of the AGGR_INIT_EXPR
2258 to that of its initializer.
2260 2020-04-13 Marek Polacek <polacek@redhat.com>
2263 * name-lookup.c (check_local_shadow): Add an inform call.
2265 2020-04-13 Patrick Palka <ppalka@redhat.com>
2268 * error.c (dump_scope): Pass TFF_NO_FUNCTION_ARGUMENTS to
2269 dump_function_decl when printing a function template instantiation as a
2273 * constexpr.c (get_or_insert_ctor_field): Set default value of parameter
2275 (cxx_eval_bare_aggregate): Use get_or_insert_ctor_field instead of
2276 assuming the the next index belongs at the end of the new CONSTRUCTOR.
2277 (cxx_eval_store_expression): Revert PR c++/78572 fix.
2279 2020-04-13 Nathan Sidwell <nathan@acm.org>
2281 PR c++/94426 lambdas with internal linkage are different to no-linkage
2282 * decl2.c (determine_visibility): A lambda's visibility is
2283 affected by its extra scope.
2284 * pt.c (instantiate_decl): Determine var's visibility before
2285 instantiating its initializer.
2286 * tree.c (no_linkage_check): Revert code looking at visibility of
2287 lambda's extra scope.
2289 2020-04-10 Iain Sandoe <iain@sandoe.co.uk>
2292 * coroutines.cc (co_await_expander): Remove.
2293 (expand_one_await_expression): New.
2294 (process_one_statement): New.
2295 (await_statement_expander): New.
2296 (build_actor_fn): Revise to use per-statement expander.
2297 (struct susp_frame_data): Reorder and comment.
2298 (register_awaits): Factor code.
2299 (replace_statement_captures): New, factored from...
2300 (maybe_promote_captured_temps):.. here.
2301 (await_statement_walker): Revise to process per statement.
2302 (morph_fn_to_coro): Use revised susp_frame_data layout.
2304 2020-04-10 Marek Polacek <polacek@redhat.com>
2307 * method.c (constructible_expr): In C++20, try using parenthesized
2308 initialization of aggregates to determine the result of
2311 2020-04-10 Bin Cheng <bin.cheng@linux.alibaba.com>
2313 * coroutines.cc (co_await_expander): Simplify.
2315 2020-04-09 Jason Merrill <jason@redhat.com>
2318 * constexpr.c (cxx_eval_constant_expression) [VAR_DECL]: Look at
2319 ctx->object and ctx->global->values first.
2321 2020-04-09 Marek Polacek <polacek@redhat.com>
2324 * call.c (initialize_reference): If the reference binding failed, maybe
2325 try initializing from { }.
2326 * decl.c (grok_reference_init): For T& t(e), set
2327 LOOKUP_AGGREGATE_PAREN_INIT but don't build up a constructor yet.
2329 2020-04-08 Iain Sandoe <iain@sandoe.co.uk>
2330 Jun Ma <JunMa@linux.alibaba.com>
2332 * coroutines.cc (maybe_promote_captured_temps): Add a cleanup
2333 expression, if needed, to any call from which we promoted
2334 temporaries captured by reference.
2336 2020-04-08 Marek Polacek <polacek@redhat.com>
2338 PR c++/94507 - ICE-on-invalid with lambda template.
2339 * pt.c (tsubst_lambda_expr): Cope when tsubst_template_decl or
2340 tsubst_function_decl returns error_mark_node.
2342 2020-04-08 Martin Liska <mliska@suse.cz>
2345 * decl.c (duplicate_decls): Duplicate also DECL_IS_REPLACEABLE_OPERATOR.
2346 (cxx_init_decl_processing): Mark replaceable all implicitly defined
2349 2020-04-08 Patrick Palka <ppalka@redhat.com>
2351 Core issues 1001 and 1322
2353 * pt.c (rebuild_function_or_method_type): Split function out from ...
2354 (tsubst_function_type): ... here.
2355 (maybe_rebuild_function_decl_type): New function.
2356 (tsubst_function_decl): Use it.
2358 2020-04-08 Jakub Jelinek <jakub@redhat.com>
2361 * decl.c (begin_destructor_body): For CLASSTYPE_VBASECLASSES class
2362 dtors, if CLASSTYPE_PRIMARY_BINFO is non-NULL, but not BINFO_VIRTUAL_P,
2363 look at CLASSTYPE_PRIMARY_BINFO of its BINFO_TYPE if it is not
2364 BINFO_VIRTUAL_P, and so on.
2366 2020-04-08 Marek Polacek <polacek@redhat.com>
2368 PR c++/94478 - ICE with defaulted comparison operator
2369 * method.c (early_check_defaulted_comparison): Give an error when the
2372 2020-04-08 Tobias Burnus <tobias@codesourcery.com>
2375 * paser.c (cp_parser_oacc_declare): Add check that variables
2376 are declared in the same scope as the directive.
2378 2020-04-07 Jason Merrill <jason@redhat.com>
2381 * parser.c (cp_parser_requires_expression): Use tentative_firewall.
2384 * parser.c (cp_parser_placeholder_type_specifier): Use
2387 2020-04-07 Iain Sandoe <iain@sandoe.co.uk>
2389 * coroutines.cc (maybe_promote_captured_temps): Ensure that
2390 reference capture placeholder vars are properly declared.
2392 2020-04-07 Patrick Palka <ppalka@redhat.com>
2395 * tree.c (replace_placeholders): Look through all handled components,
2396 not just COMPONENT_REFs.
2397 * typeck2.c (process_init_constructor_array): Propagate
2398 CONSTRUCTOR_PLACEHOLDER_BOUNDARY up from each element initializer to
2399 the array initializer.
2401 2020-04-07 Jakub Jelinek <jakub@redhat.com>
2404 * parser.c (cp_parser_omp_parallel): Set OMP_PARALLEL_COMBINED
2405 if cp_parser_omp_master succeeded.
2407 2020-04-06 Jason Merrill <jason@redhat.com>
2410 * decl.c (duplicate_decls): Fix handling of DECL_HIDDEN_FRIEND_P.
2412 2020-04-04 Marek Polacek <polacek@redhat.com>
2413 Jason Merrill <jason@redhat.com>
2415 PR c++/94155 - crash in gimplifier with paren init of aggregates.
2416 * init.c (build_vec_init): Fill in indexes.
2418 2020-04-04 Jason Merrill <jason@redhat.com>
2421 * mangle.c (write_expression): Skip IMPLICIT_CONV_EXPR.
2423 2020-04-04 Patrick Palka <ppalka@redhat.com>
2427 * constexpr.c (struct constexpr_ctx): New field 'parent'.
2428 (cxx_eval_bare_aggregate): Propagate CONSTRUCTOR_PLACEHOLDER_BOUNDARY
2429 flag from the original constructor to the reduced constructor.
2430 (lookup_placeholder): Prefer to return the outermost matching object
2431 by recursively calling lookup_placeholder on the 'parent' context,
2432 but don't cross CONSTRUCTOR_PLACEHOLDER_BOUNDARY constructors.
2433 (cxx_eval_constant_expression): Link the 'ctx' context to the 'new_ctx'
2434 context via 'new_ctx.parent' when being expanded without an explicit
2435 target. Don't call replace_placeholders.
2436 (cxx_eval_outermost_constant_expr): Initialize 'ctx.parent' to NULL.
2440 * constexpr.c (get_or_insert_ctor_field): Split out (while adding
2441 support for VECTOR_TYPEs, and optimizations for the common case)
2443 (cxx_eval_store_expression): ... here. Rename local variable
2444 'changed_active_union_member_p' to 'activated_union_member_p'. Record
2445 the sequence of indexes into 'indexes' that yields the subobject we're
2446 assigning to. Record the integer offsets of the constructor indexes
2447 we're assigning through into 'index_pos_hints'. After evaluating the
2448 initializer of the store expression, recompute 'valp' using 'indexes'
2449 and using 'index_pos_hints' as hints.
2450 (cxx_eval_bare_aggregate): Tweak comments. Use get_or_insert_ctor_field
2451 to recompute the constructor_elt pointer we're assigning through after
2452 evaluating each initializer.
2454 2020-04-04 Jason Merrill <jason@redhat.com>
2457 * constraint.cc (tsubst_valid_expression_requirement): Call
2460 2020-04-04 Jason Merrill <jason@redhat.com>
2463 * constexpr.c (maybe_constant_value): Use break_out_target_exprs.
2464 * expr.c (mark_use) [VIEW_CONVERT_EXPR]: Don't wrap a TARGET_EXPR in
2467 2020-04-04 Jakub Jelinek <jakub@redhat.com>
2470 * parser.c (cp_parser_omp_for_loop): Use
2471 protected_set_expr_location_if_unset.
2472 * cp-gimplify.c (genericize_if_stmt, genericize_cp_loop): Likewise.
2475 * pt.c (tsubst_expr) <case OMP_MASTER>: Clear
2476 omp_parallel_combined_clauses.
2478 2020-04-03 Jason Merrill <jason@redhat.com>
2481 * pt.c (complex_pack_expansion_r): New.
2482 (complex_alias_template_p): Use it.
2484 2020-03-31 Jason Merrill <jason@redhat.com>
2487 * constexpr.c (cxx_eval_constant_expression) [TARGET_EXPR]: Call
2488 replace_placeholders.
2489 * typeck2.c (store_init_value): Fix arguments to
2490 fold_non_dependent_expr.
2492 2020-03-31 Jason Merrill <jason@redhat.com>
2494 * constexpr.c (cxx_eval_constant_expression) [TARGET_EXPR]: Use
2497 2020-03-30 Jason Merrill <jason@redhat.com>
2500 * tree.c (cp_tree_equal) [CALL_EXPR]: Compare KOENIG_LOOKUP_P.
2501 (called_fns_equal): Check DECL_CONTEXT.
2503 2020-03-30 Jakub Jelinek <jakub@redhat.com>
2506 * semantics.c (add_stmt): Only set STMT_IS_FULL_EXPR_P on trees with
2507 STATEMENT_CODE_P code.
2509 2020-03-28 Patrick Palka <ppalka@redhat.com>
2512 * parser.c (cp_parser_requires_clause_opt): Diagnose and recover from
2513 "requires {" when "requires requires {" was probably intended.
2516 * constraint.cc (tsubst_compound_requirement): Always suppress errors
2517 from type_deducible_p and expression_convertible_p, as they're not
2518 substitution errors.
2519 (diagnose_atomic_constraint) <case INTEGER_CST>: Remove this case so
2520 that we diagnose INTEGER_CST expressions of non-bool type via the
2522 * cp-gimplify.c (cp_genericize_r) <case REQUIRES_EXPR>: New case.
2523 * parser.c (cp_parser_requires_expression): Always parse the requirement
2524 body as if we're processing a template, by temporarily incrementing
2525 processing_template_decl. Afterwards, if we're not actually in a
2526 template context, perform semantic processing to diagnose any invalid
2527 types and expressions.
2528 * pt.c (tsubst_copy_and_build) <case REQUIRES_EXPR>: Remove dead code.
2529 * semantics.c (finish_static_assert): Explain an assertion failure
2530 when the condition is a REQUIRES_EXPR like we do when it is a concept
2533 * constraint.cc (diagnose_compound_requirement): When diagnosing a
2534 compound requirement, maybe replay the satisfaction failure, subject to
2535 the current diagnosis depth.
2537 * constraint.cc (finish_constraint_binary_op): Set the location of EXPR
2538 as well as its range, because build_x_binary_op doesn't always do so.
2539 (current_constraint_diagnosis_depth): New.
2540 (concepts_diagnostics_max_depth_exceeded_p): New.
2541 (collect_operands_of_disjunction): New.
2542 (satisfy_disjunction): When diagnosing a satisfaction failure, maybe
2543 replay each branch of the disjunction, subject to the current diagnosis
2545 (diagnose_valid_expression): When diagnosing a satisfaction failure,
2546 maybe replay the substitution error, subject to the current diagnosis
2548 (diagnose_valid_type): Likewise.
2549 (diagnose_nested_requiremnet): Likewise.
2550 (diagnosing_failed_constraint::diagnosing_failed_constraint): Increment
2551 current_constraint_diagnosis_depth when diagnosing.
2552 (diagnosing_failed_constraint::~diagnosing_failed_constraint): Decrement
2553 current_constraint_diagnosis_depth when diagnosing.
2554 (diagnosing_failed_constraint::replay_errors_p): New static member
2556 (diagnose_constraints): Don't diagnose if concepts_diagnostics_max_depth
2557 is 0. Emit a one-off note to increase -fconcepts-diagnostics-depth if
2558 the limit was exceeded.
2559 * cp-tree.h (diagnosing_failed_constraint::replay_errors_p): Declare.
2561 2020-03-27 Nathan Sidwell <nathan@acm.org>
2564 * name-lookup.c (do_pushdecl): Look through cleanp levels.
2566 2020-03-27 Martin Sebor <msebor@redhat.com>
2571 * cp-tree.h (most_specialized_partial_spec): Declare.
2572 * parser.c (cp_parser_elaborated_type_specifier): Distinguish alias
2574 (specialization_of): New function.
2575 (cp_parser_check_class_key): Move code...
2576 (class_decl_loc_t::add): ...to here. Add parameters. Avoid issuing
2577 -Wredundant-tags on first-time declarations in other declarators.
2578 Correct handling of template specializations.
2579 (class_decl_loc_t::diag_mismatched_tags): Also expect to be called
2580 when -Wredundant-tags is enabled. Use primary template or partial
2581 specialization as the guide for uses of implicit instantiations.
2582 * pt.c (most_specialized_partial_spec): Declare extern.
2584 2020-03-27 Nathan Sidwell <nathan@acm.org>
2587 * name-lookup.c (push_namespace): Triage ambiguous lookups that
2590 2020-03-27 Jakub Jelinek <jakub@redhat.com>
2593 * call.c (set_flags_from_callee): Don't update
2594 cp_function_chain->can_throw or current_function_returns_abnormally
2595 if cp_unevaluated_operand.
2598 * cvt.c (ocp_convert): Handle COMPOUND_EXPR by recursion on the second
2599 operand and creating a new COMPOUND_EXPR if anything changed.
2601 2020-03-26 Marek Polacek <polacek@redhat.com>
2603 PR c++/94336 - template keyword accepted before destructor names.
2604 * parser.c (cp_parser_unqualified_id): Give an error when 'template'
2605 is followed by a destructor name.
2607 2020-03-27 Patrick Palka <ppalka@redhat.com>
2609 * decl.c (compute_array_index_type_loc): Remove redundant
2610 type_dependent_expression_p check that is subsumed by
2611 value_dependent_expression_p.
2612 * decl2.c (is_late_template_attribute): Likewise.
2613 * pt.c (uses_template_parms): Likewise.
2614 (dependent_template_arg_p): Likewise.
2616 2020-03-26 Marek Polacek <polacek@redhat.com>
2619 PR c++/94057 - template keyword in a typename-specifier.
2620 * parser.c (check_template_keyword_in_nested_name_spec): New.
2621 (cp_parser_nested_name_specifier_opt): Implement DR1710, optional
2622 'template'. Call check_template_keyword_in_nested_name_spec.
2623 (cp_parser_simple_type_specifier): Assume that a <
2624 following a qualified-id in a typename-specifier begins
2625 a template argument list.
2627 2020-03-26 Iain Sandoe <iain@sandoe.co.uk>
2629 * coroutines.cc (coro_init_identifiers): Initialize an identifier
2630 for the cororoutine handle 'address' method name.
2631 (struct coro_aw_data): Add fields to cover the continuations.
2632 (co_await_expander): Determine the kind of await_suspend in use.
2633 If we have the case that returns a continuation handle, then save
2634 this and make the target for 'scope exit without cleanup' be the
2635 continuation resume label.
2636 (expand_co_awaits): Remove.
2637 (struct suspend_point_info): Remove fields that kept the returned
2638 await_suspend handle type.
2639 (transform_await_expr): Remove code tracking continuation handles.
2640 (build_actor_fn): Add the continuation handle as an actor-function
2641 scope var. Build the symmetric transfer continuation point. Call
2642 the tree walk for co_await expansion directly, rather than via a
2643 trivial shim function.
2644 (register_await_info): Remove fields tracking continuation handles.
2645 (get_await_suspend_return_type): Remove.
2646 (register_awaits): Remove code tracking continuation handles.
2647 (morph_fn_to_coro): Remove code tracking continuation handles.
2649 2020-03-26 Iain Sandoe <iain@sandoe.co.uk>
2651 * coroutines.cc (co_await_expander): If we are expanding the
2652 initial await expression, set a boolean flag to show that we
2653 have now reached the initial await_resume() method call.
2654 (expand_co_awaits): Handle the 'initial await resume called' flag.
2655 (build_actor_fn): Insert the initial await expression into the
2656 start of the user-authored function-body. Handle the 'initial await
2657 resume called' flag.
2658 (morph_fn_to_coro): Initialise the 'initial await resume called'
2659 flag. Modify the unhandled exception catch clause to recognise
2660 exceptions that occur before the initial await_resume() and re-
2663 2020-03-26 Jakub Jelinek <jakub@redhat.com>
2666 * class.c (user_provided_p): Use STRIP_TEMPLATE instead of returning
2667 true for all TEMPLATE_DECLs.
2670 * cp-gimplify.c (cp_genericize_r): Handle STATEMENT_LIST.
2672 2020-03-25 Patrick Palka <ppalka@redhat.com>
2675 * parser.c (cp_parser_selection_statement) <case RID_IF>: Invalidate the
2676 current condition chain when the if-statement has a non-empty
2679 2020-03-25 Iain Sandoe <iain@sandoe.co.uk>
2682 * coroutines.cc (captures_temporary): Fix a missing dereference.
2684 2020-03-24 Marek Polacek <polacek@redhat.com>
2686 PR c++/94190 - wrong no post-decrement operator error in template.
2687 * call.c (convert_like_real): Use convert_from_reference on the result.
2689 2020-03-24 Jason Merrill <jason@redhat.com>
2692 * constraint.cc (constraint_satisfaction_value): Repeat noisily on
2694 (tsubst_nested_requirement): Likewise.
2695 (get_constraint_error_location): Allow missing context.
2696 (diagnose_atomic_constraint): Diagnose non-bool constraint here.
2697 (satisfy_atom): Not here. Only diagnose non-constant when noisy.
2699 2020-03-24 Jason Merrill <jason@redhat.com>
2701 * pt.c (any_template_parm_r): Look into the type of a non-type
2704 2020-03-24 Jason Merrill <jason@redhat.com>
2706 * cp-tree.h (cp_expr): When constructing from an expr and a
2707 location, call protected_set_expr_location.
2709 2020-03-23 Patrick Palka <ppalka@redhat.com>
2712 * except.c (maybe_noexcept_warning): Add TODO.
2713 * method.c (walk_field_subobs): Pass tf_none to expr_noexcept_p.
2715 2020-03-23 nathans <nathan@acm.org>
2718 * tree.c (cp_tree_equal) [SIZEOF_EXPR]: Detect argument pack
2721 2020-03-21 Patrick Palka <ppalka@redhat.com>
2724 * constexpr.c (reduced_constant_expression_p) [CONSTRUCTOR]: Properly
2725 handle unions without an initializer.
2726 (cxx_eval_component_reference): Emit a different diagnostic when the
2727 constructor element corresponding to a union member is NULL.
2728 (cxx_eval_bare_aggregate): When constructing a union, always set the
2729 active union member before evaluating the initializer. Relax assertion
2730 that verifies the index of the constructor element we're initializing
2731 hasn't been changed.
2732 (cxx_eval_store_expression): Diagnose changing the active union member
2733 while the union is in the process of being initialized. After setting
2734 an active union member, clear CONSTRUCTOR_NO_CLEARING on the underlying
2736 (cxx_eval_constant_expression) [PLACEHOLDER_EXPR]: Don't re-reduce a
2737 CONSTRUCTOR returned by lookup_placeholder.
2739 2020-03-20 Patrick Palka <ppalka@redhat.com>
2741 * cxx-pretty-print.c (pp_cxx_parameter_mapping): Make extern. Move
2742 the "[with ]" bits to here from ...
2743 (pp_cxx_atomic_constraint): ... here.
2744 * cxx-pretty-print.h (pp_cxx_parameter_mapping): Declare.
2745 * error.c (rebuild_concept_check): Delete.
2746 (print_concept_check_info): Print the dependent form of the constraint and the
2747 preferably substituted parameter mapping alongside it.
2749 2020-03-19 Jason Merrill <jason@redhat.com>
2752 * cp-gimplify.c (simple_empty_class_p): Look through
2753 SIMPLE_TARGET_EXPR_P.
2754 (cp_gimplify_expr) [MODIFY_EXPR]: Likewise.
2755 [RETURN_EXPR]: Avoid producing 'return *retval;'.
2756 * call.c (build_call_a): Strip TARGET_EXPR from empty class arg.
2757 * cp-tree.h (SIMPLE_TARGET_EXPR_P): Check that TARGET_EXPR_INITIAL
2760 2020-03-19 Jakub Jelinek <jakub@redhat.com>
2763 * parser.c (cp_parser_omp_var_list_no_open): Call process_outer_var_ref
2764 on outer_automatic_var_p decls.
2765 * cp-gimplify.c (cxx_omp_disregard_value_expr): Return true also for
2766 capture proxy decls.
2768 2020-03-18 Nathan Sidwell <nathan@acm.org>
2770 PR c++/94147 - mangling of lambdas assigned to globals
2771 * parser.c (cp_parser_init_declarator): Namespace-scope variables
2772 provide a lambda scope.
2773 * tree.c (no_linkage_check): Lambdas with a variable for extra
2774 scope have a linkage from the variable.
2776 2020-03-18 Jakub Jelinek <jakub@redhat.com>
2778 * constraint.cc (resolve_function_concept_check, subsumes_constraints,
2779 strictly_subsumes): Fix up duplicated word issue in a comment.
2780 * coroutines.cc (build_init_or_final_await, captures_temporary):
2782 * logic.cc (dnf_size_r, cnf_size_r): Likewise.
2783 * pt.c (append_type_to_template_for_access_check): Likewise.
2786 * decl.c (grokfndecl): Restore old diagnostics about deduction
2787 guide declared in different scope if in_namespace is NULL_TREE.
2789 2020-03-17 Jakub Jelinek <jakub@redhat.com>
2792 * parser.c (cp_parser_enum_specifier): Use temp_override for
2793 parser->colon_corrects_to_scope_p, replace goto out with return.
2794 If scoped enum or enum with underlying type is not followed by
2795 { or ;, call cp_parser_commit_to_tentative_parse before calling
2796 cp_parser_error and make sure to return error_mark_node instead of
2797 NULL_TREE. Formatting fixes.
2799 2020-03-17 Ville Voutilainen <ville.voutilainen@gmail.com>
2802 * method.c (assignable_expr): Use cp_unevaluated.
2803 (is_xible_helper): Push a non-deferred access check for
2804 the stub objects created by assignable_expr and constructible_expr.
2806 2020-03-17 Jakub Jelinek <jakub@redhat.com>
2808 * pt.c (tsubst): Fix up duplicated word issue in a diagnostic message.
2809 (lookup_template_class_1, tsubst_expr): Fix up duplicated word issue
2811 * parser.c (cp_parser_statement, cp_parser_linkage_specification,
2812 cp_parser_placeholder_type_specifier,
2813 cp_parser_constraint_requires_parens): Likewise.
2814 * name-lookup.c (suggest_alternative_in_explicit_scope): Likewise.
2816 2020-03-15 Iain Sandoe <iain@sandoe.co.uk>
2818 * coroutines.cc (co_await_expander): Fix indentation.
2820 2020-03-14 Jason Merrill <jason@redhat.com>
2823 * pt.c (process_partial_specialization): Error rather than crash on
2824 extra pack expansion.
2826 2020-03-14 Jason Merrill <jason@redhat.com>
2829 * pt.c (find_parameter_packs_r): [DECL_EXPR]: Walk
2830 DECL_ORIGINAL_TYPE of a typedef.
2832 2020-03-14 Jason Merrill <jason@redhat.com>
2835 * pt.c (build_deduction_guide): Clear cp_unevaluated_operand for
2836 substituting DECL_ARGUMENTS.
2838 2020-03-14 Jakub Jelinek <jakub@redhat.com>
2840 * logic.cc (formula::formula): Change "a an" to "an" in a comment.
2841 * parser.c (cp_debug_parser): Change "a an" to "an" in a string
2844 2020-03-13 Patrick Palka <ppalka@redhat.com>
2847 * call.c (build_over_call): Use a warning_sentinel to disable
2848 warn_deprecated_decl before calling build_addr_func.
2850 2020-03-12 Jakub Jelinek <jakub@redhat.com>
2853 * decl.c (reshape_init_array_1): Don't unshare constructor if there
2854 aren't any trailing zero elts, otherwise only unshare the first
2857 2020-03-11 Jason Merrill <jason@redhat.com>
2860 * constraint.cc (tsubst_parameter_mapping): Canonicalize type
2863 2020-03-11 Marek Polacek <polacek@redhat.com>
2864 Jason Merrill <jason@redhat.com>
2866 PR c++/94074 - wrong modifying const object error for COMPONENT_REF.
2867 * constexpr.c (cref_has_const_field): New function.
2868 (modifying_const_object_p): Consider a COMPONENT_REF
2869 const only if any of its fields are const.
2870 (cxx_eval_store_expression): Mark a CONSTRUCTOR of a const type
2871 as readonly after its initialization has been done.
2873 2020-03-10 Marek Polacek <polacek@redhat.com>
2875 PR c++/94124 - wrong conversion error with non-viable overload.
2876 * decl.c (reshape_init_array_1): Unshare a constructor if we
2877 stripped trailing zero-initializers.
2879 2020-03-10 Jason Merrill <jason@redhat.com>
2882 * pt.c (maybe_instantiate_noexcept): Always update clones.
2884 2020-03-10 Jason Merrill <jason@redhat.com>
2887 * pt.c (maybe_aggr_guide): Check BRACE_ENCLOSED_INITIALIZER_P.
2889 2020-03-10 Jason Merrill <jason@redhat.com>
2895 * cp-gimplify.c (cp_gimplify_init_expr): Partially revert patch for
2896 66139: Don't split_nonconstant_init. Remove pre_p parameter.
2898 2020-03-09 Marek Polacek <polacek@redhat.com>
2900 PR c++/92031 - bogus taking address of rvalue error.
2901 PR c++/91465 - ICE with template codes in check_narrowing.
2902 PR c++/93870 - wrong error when converting template non-type arg.
2903 PR c++/94068 - ICE with template codes in check_narrowing.
2904 * call.c (convert_like_real): Return IMPLICIT_CONV_EXPR
2905 in a template when not ck_identity and we're dealing with a class.
2906 (convert_like_real) <case ck_ref_bind>: Return IMPLICIT_CONV_EXPR
2907 in a template if we need a temporary.
2908 * decl.c (compute_array_index_type_loc): Remove
2909 instantiate_non_dependent_expr_sfinae call. Call
2910 fold_non_dependent_expr instead of maybe_constant_value.
2911 (build_explicit_specifier): Don't instantiate or create a sentinel
2912 before converting the expression.
2913 * except.c (build_noexcept_spec): Likewise.
2914 * pt.c (convert_nontype_argument): Don't build IMPLICIT_CONV_EXPR.
2915 Set IMPLICIT_CONV_EXPR_NONTYPE_ARG if that's what
2916 build_converted_constant_expr returned.
2917 * typeck2.c (check_narrowing): Call fold_non_dependent_expr instead
2918 of maybe_constant_value.
2920 2020-03-09 Jakub Jelinek <jakub@redhat.com>
2924 2019-10-11 Paolo Carlini <paolo.carlini@oracle.com>
2926 * constexpr.c (cxx_eval_constant_expression): Do not handle
2927 RROTATE_EXPR and LROTATE_EXPR.
2929 2020-03-09 Marek Polacek <polacek@redhat.com>
2931 PR c++/94050 - ABI issue with alignas on armv7hl.
2932 * class.c (layout_class_type): Don't replace a class's
2933 CLASSTYPE_AS_BASE if their TYPE_USER_ALIGN don't match.
2935 2020-03-09 Bin Cheng <bin.cheng@linux.alibaba.com>
2937 * coroutines.cc (build_actor_fn): Factor out code inserting the
2938 default return_void call to...
2939 (morph_fn_to_coro): ...here, also hoist local var declarations.
2941 2020-03-08 Patrick Palka <ppalka@redhat.com>
2944 * call.c (convert_like_real): Check complain before emitting an error
2945 about binding a bit-field to a reference.
2947 * cxx-pretty-print.c (cxx_pretty_printer::simple_type_specifier)
2948 [TYPENAME_TYPE]: Print the TYPENAME_TYPE_FULLNAME instead of the
2951 2020-03-06 Nathan Sidwell <nathan@acm.org>
2954 * mangle.c (find_substitution): Don't call same_type_p on template
2955 args that cannot match.
2957 2020-03-04 Martin Sebor <msebor@redhat.com>
2960 * tree.c (type_initializer_zero_p): Fail for structs initialized
2963 2020-03-04 Jason Merrill <jason@redhat.com>
2966 * init.c (perform_member_init): Don't do aggregate initialization of
2968 * constexpr.c (cx_check_missing_mem_inits): Don't enforce
2969 initialization of empty field.
2971 2020-03-04 Martin Liska <mliska@suse.cz>
2973 * method.c: Wrap array in ctor with braces in order
2974 to silent clang warnings.
2976 2020-03-03 Jason Merrill <jason@redhat.com>
2977 Marek Polacek <polacek@redhat.com>
2979 PR c++/90505 - mismatch in template argument deduction.
2980 * pt.c (tsubst): Don't reduce the template level of template
2981 parameters when tf_partial.
2983 2020-03-03 Jakub Jelinek <jakub@redhat.com>
2986 * constexpr.c (cxx_eval_constant_expression)
2987 <case TARGET_EXPR, case SAVE_EXPR>: Don't record anything if
2988 *non_constant_p is true.
2990 2020-03-03 Jun Ma <JunMa@linux.alibaba.com>
2992 * coroutines.cc (captures_temporary): Strip component_ref
2995 2020-03-03 Jun Ma <JunMa@linux.alibaba.com>
2997 * coroutines.cc (finish_co_await_expr): Build co_await_expr
2998 with unknown_type_node.
2999 (finish_co_yield_expr): Ditto.
3000 *pt.c (type_dependent_expression_p): Set co_await/yield_expr
3001 with unknown type as dependent.
3003 2020-03-02 Iain Sandoe <iain@sandoe.co.uk>
3005 * coroutines.cc (struct local_var_info): Adjust to remove the
3006 reference to the captured var, and just to note that this is a
3007 lambda capture proxy.
3008 (transform_local_var_uses): Handle lambda captures specially.
3009 (struct param_frame_data): Add a visited set.
3010 (register_param_uses): Also check for param uses in lambda
3012 (struct local_vars_frame_data): Remove captures list.
3013 (register_local_var_uses): Handle lambda capture proxies by
3014 noting and bypassing them.
3015 (morph_fn_to_coro): Update to remove lifetime extension of
3016 lambda capture-by-copy vars.
3018 2020-03-02 Iain Sandoe <iain@sandoe.co.uk>
3020 * coroutines.cc (build_co_await): Do not build frame
3021 awaitable proxy vars when the co_await expression is
3022 a function parameter or local var.
3023 (co_await_expander): Do not initialise a frame var with
3025 (transform_await_expr): Only substitute the awaitable
3026 frame var if it's needed.
3027 (register_awaits): Do not make frame copies for param
3028 or local vars that are awaitables.
3030 2020-02-28 Jason Merrill <jason@redhat.com>
3032 Implement P2092R0, Disambiguating Nested-Requirements
3033 * parser.c (cp_parser_requirement_parameter_list): Pass
3034 CP_PARSER_FLAGS_TYPENAME_OPTIONAL.
3036 * call.c (build_user_type_conversion_1): Don't look at the second
3037 conversion of a non-viable candidate.
3039 2020-02-28 Jakub Jelinek <jakub@redhat.com>
3041 P1937R2 - Fixing inconsistencies between const{expr,eval} functions
3042 * typeck.c (cp_build_addr_expr_1): Allow taking address of immediate
3043 functions in unevaluated contexts.
3045 2020-02-27 Nathan Sidwell <nathan@acm.org>
3048 * pt.c (template_args_equal): Pass ARGUMENT_PACKS through to
3050 * tree.c (cp_tree_equal): Compare ARGUMENT_PACKS here,
3051 * typeck.c (comptypes): Assert we don't get any argument packs.
3053 * class.c (adjust_clone_args): Correct arg-checking assert.
3054 * typeck.c (comptypes): Assert not nulls.
3056 2020-02-26 Marek Polacek <polacek@redhat.com>
3058 PR c++/93789 - ICE with invalid array bounds.
3059 * decl.c (compute_array_index_type_loc): Don't use the folded
3060 size when folding cleared TREE_CONSTANT.
3062 2020-02-26 Iain Sandoe <iain@sandoe.co.uk>
3064 * class.c (classtype_has_non_deleted_copy_ctor): New.
3065 * coroutines.cc (struct param_info): Keep track of params
3066 that are references, and cache the original type and whether
3067 the DTOR is trivial.
3068 (build_actor_fn): Handle param copies always, and adjust the
3069 handling for references.
3070 (register_param_uses): Only handle uses here.
3071 (classtype_has_non_deleted_copy_ctor): New.
3072 (morph_fn_to_coro): Adjust param copy handling to match n4849
3073 by reordering ahead of the promise CTOR and always making a
3074 frame copy, even if the param is unused in the coroutine body.
3075 * cp-tree.h (classtype_has_non_deleted_copy_ctor): New.
3077 2020-02-26 Patrick Palka <ppalka@redhat.com>
3079 * constraint.cc (finish_constraint_binary_op): Set expr's location range
3080 to the range of its operands.
3081 (satisfy_atom): Pass MAP instead of ARGS to diagnose_atomic_constraint.
3082 (diagnose_trait_expr): Take the instantiated parameter mapping MAP
3083 instead of the corresponding template arguments ARGS and adjust body
3085 (diagnose_requires_expr): Likewise.
3086 (diagnose_atomic_constraint): Likewise. When printing an atomic
3087 constraint expression, print the instantiated parameter mapping
3089 * cxx-pretty-print.cc (cxx_pretty_printer::expression)
3090 [NONTYPE_ARGUMENT_PACK]: Print braces around a NONTYPE_ARGUMENT_PACK.
3091 (cxx_pretty_printer::type_id): Handle TYPE_ARGUMENT_PACK.
3093 2020-02-26 Marek Polacek <polacek@redhat.com>
3095 PR c++/93676 - value-init crash in template.
3096 * init.c (build_new_1): Don't call build_vec_init in a template.
3098 2020-02-26 Marek Polacek <polacek@redhat.com>
3100 PR c++/93862 - ICE with static_cast when converting from int[].
3101 * call.c (reference_compatible_p): No longer static.
3102 * cp-tree.h (reference_compatible_p): Declare.
3103 * typeck.c (build_static_cast_1): Use reference_compatible_p instead
3104 of reference_related_p.
3106 2020-02-26 Marek Polacek <polacek@redhat.com>
3108 PR c++/93803 - ICE with constexpr init and [[no_unique_address]].
3109 * constexpr.c (reduced_constant_expression_p): Don't crash on a null
3112 2020-02-24 Martin Sebor <msebor@redhat.com>
3115 * parser.c (cp_parser_check_class_key): Avoid issuing -Wredundant-tags
3116 in shared C/C++ code in headers.
3117 Remove a duplicate hunk of code.
3119 2020-02-24 Marek Polacek <polacek@redhat.com>
3121 PR c++/93869 - ICE with -Wmismatched-tags.
3122 * parser.c (cp_parser_check_class_key): Check class_key earlier.
3124 2020-02-24 Marek Polacek <polacek@redhat.com>
3126 PR c++/93712 - ICE with ill-formed array list-initialization.
3127 * call.c (next_conversion): Return NULL for ck_aggr.
3128 (build_aggr_conv): Set u.expr instead of u.next.
3129 (build_array_conv): Likewise.
3130 (build_complex_conv): Likewise.
3131 (conv_get_original_expr): Handle ck_aggr.
3133 2020-02-24 Jakub Jelinek <jakub@redhat.com>
3135 P1937R2 - Fixing inconsistencies between const{expr,eval} functions
3136 * call.c (build_over_call): Don't evaluate immediate functions in
3137 unevaluated operands.
3139 2020-02-24 Jason Merrill <jason@redhat.com>
3141 P0780R2: Resolve lambda init-capture pack grammar.
3142 * parser.c (cp_parser_lambda_introducer): Expect &...x=y rather than
3145 2020-02-22 Marek Polacek <polacek@redhat.com>
3148 * decl.c (grokdeclarator): Use %qs in a diagnostic message.
3150 2020-02-21 Martin Sebor <msebor@redhat.com>
3152 PR gcov-profile/93753
3153 * class.c (check_flexarrays): Tighten up a test for potential members
3154 of anonymous structs or unions.
3156 2020-02-20 Martin Sebor <msebor@redhat.com>
3159 * parser.c (cp_parser_check_class_key): Only handle true C++ class-keys.
3161 2020-02-20 Martin Liska <mliska@suse.cz>
3163 PR translation/93841
3164 * config/or1k/or1k.opt: Remove superfluous word.
3165 * doc/invoke.texi: Likewise.
3167 2020-02-20 Martin Liska <mliska@suse.cz>
3169 PR translation/93838
3170 * parser.c (cp_parser_decl_specifier_seq): Remove trailing space.
3172 2020-02-19 Marek Polacek <polacek@redhat.com>
3174 PR c++/93169 - wrong-code with a non-constexpr constructor.
3175 * constexpr.c (cxx_eval_call_expression): Only set TREE_READONLY
3176 on constant CONSTRUCTORs.
3178 2020-02-15 Marek Polacek <polacek@redhat.com>
3180 PR c++/93710 - poor diagnostic for array initializer.
3181 * call.c (build_user_type_conversion_1): Use cp_expr_loc_or_input_loc
3184 2020-02-15 Jason Merrill <jason@redhat.com>
3187 * pt.c (any_template_parm_r): Look into lambda body.
3190 * pt.c (any_template_parm_r): Remove CONSTRUCTOR handling.
3192 2020-02-14 Jakub Jelinek <jakub@redhat.com>
3195 * class.c (enum_min_precision): Change prec type from int to int &.
3198 * cp-tree.h (enum cp_tree_index): Add CPTI_FALLBACK_DFLOAT32_TYPE,
3199 CPTI_FALLBACK_DFLOAT64_TYPE and CPTI_FALLBACK_DFLOAT128_TYPE.
3200 (fallback_dfloat32_type, fallback_dfloat64_type,
3201 fallback_dfloat128_type): Define.
3202 * mangle.c (write_builtin_type): Handle fallback_dfloat*_type like
3204 * rtti.c (emit_support_tinfos): Emit DFP typeinfos even when dfp
3205 is disabled for compatibility.
3207 2020-02-13 Jason Merrill <jason@redhat.com>
3210 * name-lookup.c (matching_fn_p): A function does not match a
3215 * tree.c (decl_linkage): Always lk_none for locals.
3217 2020-02-12 Jason Merrill <jason@redhat.com>
3221 * tree.c (cp_walk_subtrees): Walk CONSTRUCTOR types here.
3222 * pt.c (find_parameter_packs_r): Not here.
3224 2020-02-12 Iain Sandoe <iain@sandoe.co.uk>
3226 * coroutines.cc (build_actor_fn): Implement deallocation function
3227 selection per n4849, dcl.fct.def.coroutine bullet 12.
3228 (morph_fn_to_coro): Implement allocation function selection per
3229 n4849, dcl.fct.def.coroutine bullets 9 and 10.
3231 2020-02-12 Marek Polacek <polacek@redhat.com>
3233 PR c++/93684 - ICE-on-invalid with broken attribute.
3234 * parser.c (cp_parser_std_attribute): Peek a token first before
3237 2020-02-11 Jason Merrill <jason@redhat.com>
3240 * class.c (add_implicitly_declared_members): Use do_friend.
3241 * method.c (implicitly_declare_fn): Fix friend handling.
3242 (decl_remember_implicit_trigger_p): New.
3243 (synthesize_method): Use it.
3244 * decl2.c (mark_used): Use it.
3246 2020-02-11 Jason Merrill <jason@redhat.com>
3250 * constexpr.c (maybe_constant_value): Correct earlier change.
3251 (cxx_eval_binary_expression) [SPACESHIP_EXPR]: Pass lval through.
3252 * method.c (genericize_spaceship): Wrap result in TARGET_EXPR.
3254 2020-02-12 Patrick Palka <ppalka@redhat.com>
3258 * type-utils.h (find_type_usage): Refactor to take a tree * and to
3259 return a tree *, and update documentation accordingly.
3260 * pt.c (make_auto_1): Set AUTO_IS_DECLTYPE when building a
3261 decltype(auto) node.
3262 (make_constrained_decltype_auto): No need to explicitly set
3263 AUTO_IS_DECLTYPE anymore.
3264 (splice_late_return_type): Use find_type_usage to find and
3265 replace a possibly nested auto node instead of using is_auto.
3266 Check test for is_auto into an assert when deciding whether
3267 to late_return_type.
3268 (type_uses_auto): Adjust the call to find_type_usage.
3269 * parser.c (cp_parser_decltype): No need to explicitly set
3270 AUTO_IS_DECLTYPE anymore.
3272 * error.c (dump_decl) [CONCEPT_DECL]: Use dump_simple_decl.
3273 (dump_simple_decl): Handle standard concept definitions as well as
3274 variable concept definitions.
3276 2020-02-10 Jakub Jelinek <jakub@redhat.com>
3279 * error.c (dump_decl_name): Fix up last argument to strncmp.
3281 2020-02-10 Jason Merrill <jason@redhat.com>
3284 * tree.c (array_of_unknown_bound_p): New.
3285 * init.c (perform_member_init): Do nothing for flexible arrays.
3287 2020-02-09 Jakub Jelinek <jakub@redhat.com>
3290 * constexpr.c (cxx_eval_constant_expression): If obj is heap var with
3291 ARRAY_TYPE, use the element type. Punt if objtype after that is not
3294 2020-02-08 Jason Merrill <jason@redhat.com>
3297 * expr.c (fold_for_warn): Call maybe_constant_value.
3298 * constexpr.c (struct constexpr_ctx): Add uid_sensitive bit-field.
3299 (maybe_constant_value): Add uid_sensitive parm.
3300 (get_fundef_copy): Don't copy if it's true.
3301 (cxx_eval_call_expression): Don't instantiate if it's true.
3302 (cxx_eval_outermost_constant_expr): Likewise.
3305 * constexpr.c (maybe_constant_value): Don't unshare if the cached
3306 value is the same as the argument.
3308 * typeck.c (maybe_warn_about_returning_address_of_local): Add
3311 * typeck2.c (process_init_constructor): Also clear TREE_SIDE_EFFECTS
3314 2020-02-08 Jakub Jelinek <jakub@redhat.com>
3317 * constexpr.c (find_array_ctor_elt): If last element has no index,
3318 for flag_checking verify all elts have no index. If i is within the
3319 elts, return it directly, if it is right after the last elt, append
3320 if NULL index, otherwise force indexes on all elts.
3321 (cxx_eval_store_expression): Allow cep->index to be NULL.
3323 2020-02-07 Marek Polacek <polacek@redhat.com>
3325 PR c++/92947 - Paren init of aggregates in unevaluated context.
3326 * call.c (build_new_method_call_1): Don't check
3327 cp_unevaluated_operand. Check the return value of digest_init.
3329 2020-02-06 Jason Merrill <jason@redhat.com>
3332 * tree.c (cp_walk_subtrees): Walk into type template arguments.
3333 * cp-tree.h (TYPE_TEMPLATE_INFO_MAYBE_ALIAS): Use typedef_variant_p
3334 instead of TYPE_ALIAS_P.
3335 * pt.c (push_template_decl_real): Likewise.
3336 (find_parameter_packs_r): Likewise. Remove dead code.
3337 * error.c (find_typenames_r): Remove dead code.
3339 2020-02-06 Jason Merrill <jason@redhat.com>
3342 * parser.c (cp_parser_constraint_primary_expression): Do the main
3343 parse non-tentatively.
3345 2020-02-06 Marek Polacek <polacek@redhat.com>
3347 PR c++/93597 - ICE with lambda in operator function.
3348 * name-lookup.c (maybe_save_operator_binding): Check is_overloaded_fn.
3350 2020-02-05 Jason Merrill <jason@redhat.com>
3353 * pt.c (tsubst_decl) [PARM_DECL]: Check cp_unevaluated_operand in
3354 handling of TREE_CHAIN for empty pack.
3356 2020-02-05 Jakub Jelinek <jakub@redhat.com>
3359 * semantics.c (cp_build_vec_convert): Call decay_conversion on arg
3360 prior to passing it to c_build_vec_convert.
3362 2020-02-05 Marek Polacek <polacek@redhat.com>
3364 PR c++/93559 - ICE with CONSTRUCTOR flags verification.
3365 * decl.c (reshape_init_array_1): Don't reuse a CONSTRUCTOR with
3368 2020-02-05 Jason Merrill <jason@redhat.com>
3371 * decl.c (grokdeclarator): Reject field of current class type even
3374 2020-02-05 Bin Cheng <bin.cheng@linux.alibaba.com>
3376 * coroutines.cc (maybe_promote_captured_temps): Increase the index
3377 number for temporary variables' name.
3379 2020-02-05 Jun Ma <JunMa@linux.alibaba.com>
3381 * coroutines.cc (build_co_await): Call convert_from_reference
3382 to wrap co_await_expr with indirect_ref which avoid
3383 reference/non-reference type confusion.
3385 (co_await_expander): Sink to call_expr if await_resume
3386 is wrapped by indirect_ref.
3388 2020-02-04 Jason Merrill <jason@redhat.com>
3391 * constraint.cc (satisfy_declaration_constraints): Check return
3392 value of push_tinst_level.
3395 * constexpr.c (cxx_eval_array_reference): {}-initialize missing
3396 elements instead of value-initializing them.
3399 * init.c (perform_member_init): Simplify.
3400 * constexpr.c (cx_check_missing_mem_inits): Allow uninitialized
3402 (cxx_eval_vec_init_1): Handle CONSTRUCTOR.
3404 2020-02-04 Iain Sandoe <iain@sandoe.co.uk>
3406 * coroutines.cc (find_promise_type): Delete unused forward
3408 (struct coroutine_info): Add a bool for no promise type error.
3409 (coro_promise_type_found_p): Only emit the error for a missing
3410 promise once in each affected coroutine.
3412 2020-02-03 Jason Merrill <jason@redhat.com>
3415 * constexpr.c (cxx_eval_constant_expression) [PARM_DECL]: Don't
3416 defer loading the value of a reference.
3418 2020-02-03 Jason Merrill <jason@redhat.com>
3421 * constexpr.c (potential_constant_expression_1) [PARM_DECL]: Allow
3423 [COMPONENT_REF]: A member function reference doesn't use the object
3426 2020-02-03 Iain Sandoe <iain@sandoe.co.uk>
3429 * coroutines.cc (struct coroutine_info): Add a bool flag to note
3430 that we emitted an error for a bad function return type.
3431 (get_coroutine_info): Tolerate an unset info table in case of
3433 (find_coro_traits_template_decl): In case of error or if we didn't
3434 find a type template, note we emitted the error and suppress
3436 (find_coro_handle_template_decl): Likewise.
3437 (instantiate_coro_traits): Only check for error_mark_node in the
3438 return from lookup_qualified_name.
3439 (coro_promise_type_found_p): Reorder initialization so that we check
3440 for the traits and their usability before allocation of the info
3441 table. Check for a suitable return type and emit a diagnostic for
3442 here instead of relying on the lookup machinery. This allows the
3443 error to have a better location, and means we can suppress multiple
3445 (coro_function_valid_p): Re-check for a valid promise (and thus the
3446 traits) before proceeding. Tolerate missing info as a fatal error.
3448 2020-02-03 Jason Merrill <jason@redhat.com>
3451 * cp-gimplify.c (predeclare_vla): New.
3452 (cp_genericize_r) [NOP_EXPR]: Call it.
3454 2020-02-03 Jun Ma <JunMa@linux.alibaba.com>
3456 * coroutines.cc (transform_await_wrapper): Set actor funcion as
3457 new context of label_decl.
3458 (build_actor_fn): Fill new field of await_xform_data.
3460 2020-02-02 Marek Polacek <polacek@redhat.com>
3462 PR c++/93530 - ICE on invalid alignas in a template.
3463 * decl.c (grokdeclarator): Call cplus_decl_attributes instead of
3466 2020-01-31 Jason Merrill <jason@redhat.com>
3469 * semantics.c (process_outer_var_ref): Capture VLAs even in
3470 unevaluated context.
3473 * decl.c (reshape_init_array_1): Reuse a single CONSTRUCTOR with
3474 non-aggregate elements.
3475 (reshape_init_array): Add first_initializer_p parm.
3476 (reshape_init_r): Change first_initializer_p from bool to tree.
3477 (reshape_init): Pass init to it.
3480 * parser.c (cp_parser_initializer_list): Suppress location wrappers
3483 2020-01-29 Jason Merrill <jason@redhat.com>
3486 * pt.c (tsubst_copy_and_build) [EQ_EXPR]: Only suppress warnings if
3487 the expression was dependent before substitution.
3489 2020-01-30 Bin Cheng <bin.cheng@linux.alibaba.com>
3491 * coroutines.cc (act_des_fn): New.
3492 (morph_fn_to_coro): Call act_des_fn to build actor/destroy decls.
3493 Access promise via actor function's frame pointer argument.
3494 (build_actor_fn, build_destroy_fn): Use frame pointer argument.
3496 2020-01-30 Bin Cheng <bin.cheng@linux.alibaba.com>
3498 * coroutines.cc (co_await_expander): Handle type conversion case.
3500 2020-01-29 Jason Merrill <jason@redhat.com>
3505 * parser.c (cp_parser_type_specifier_seq): Don't parse attributes in
3506 a trailing return type.
3507 (cp_parser_lambda_declarator_opt): Parse C++11 attributes before
3510 2020-01-29 Marek Polacek <polacek@redhat.com>
3512 PR c++/91754 - Fix template arguments comparison with class NTTP.
3513 * pt.c (class_nttp_const_wrapper_p): New.
3514 (template_args_equal): See through class_nttp_const_wrapper_p
3517 2020-01-29 Marek Polacek <polacek@redhat.com>
3519 PR c++/92948 - Fix class NTTP with template arguments.
3520 * pt.c (convert_nontype_argument): Use IMPLICIT_CONV_EXPR when
3521 converting a value-dependent expression to a class type.
3522 (tsubst_copy) <case VIEW_CONVERT_EXPR>: Allow IMPLICIT_CONV_EXPR
3523 as the result of the tsubst_copy call.
3525 2020-01-29 Jakub Jelinek <jakub@redhat.com>
3528 * cp-gimplify.c (cxx_omp_predetermined_sharing): Return
3529 OMP_CLAUSE_DEFAULT_SHARED for typeinfo decls.
3531 2020-01-28 Jason Merrill <jason@redhat.com>
3534 * parser.c (cp_parser_lambda_expression): Clear in_discarded_stmt.
3538 * decl2.c (copy_linkage): Do copy DECL_ONE_ONLY and DECL_WEAK.
3541 * call.c (build_user_type_conversion_1): Allow a template conversion
3542 returning an rvalue reference to bind directly to an lvalue.
3545 * decl.c (grokdeclarator): Propagate eh spec from typedef.
3547 2020-01-28 Martin Liska <mliska@suse.cz>
3550 * pt.c (redeclare_class_template): Group couple of
3551 errors and inform messages with auto_diagnostic_group.
3553 2020-01-28 Martin Liska <mliska@suse.cz>
3556 * pt.c (redeclare_class_template): Use inform
3557 for the second location.
3559 2020-01-27 Jason Merrill <jason@redhat.com>
3562 * pt.c (tsubst_copy) [STRING_CST]: Don't use fold_convert.
3564 2020-01-27 Iain Sandoe <iain@sandoe.co.uk>
3567 * coroutines.cc (morph_fn_to_coro): Check the ramp return
3568 value when it is constructed from the 'get return object'.
3570 2020-01-27 Nathan Sidwell <nathan@acm.org>
3573 * name-lookup.c (is_ancestor): Allow CHILD to be a namespace alias.
3575 2020-01-26 Jason Merrill <jason@redhat.com>
3578 * except.c (maybe_noexcept_warning): Check DECL_IN_SYSTEM_HEADER and
3579 temporarily enable -Wsystem-headers. Change second warning to
3583 * semantics.c (finish_call_expr): Don't call
3584 instantiate_non_dependent_expr before warn_for_memset.
3586 2020-01-25 Marek Polacek <polacek@redhat.com>
3588 PR c++/93414 - poor diagnostic for dynamic_cast in constexpr context.
3589 * constexpr.c (cxx_eval_dynamic_cast_fn): Add a reference
3590 dynamic_cast diagnostic.
3592 2020-01-24 Jason Merrill <jason@redhat.com>
3594 PR c++/93400 - ICE with constrained friend.
3595 * constraint.cc (maybe_substitute_reqs_for): New.
3596 * decl.c (function_requirements_equivalent_p): Call it.
3597 * pt.c (tsubst_friend_function): Only substitute
3598 TEMPLATE_PARMS_CONSTRAINTS.
3599 (tsubst_template_parms): Copy constraints.
3601 2020-01-24 Jason Merrill <jason@redhat.com>
3603 PR c++/93279 - ICE with lambda in member operator.
3604 * name-lookup.c (maybe_save_operator_binding): Don't remember
3605 class-scope bindings.
3607 2020-01-24 Jason Merrill <jason@redhat.com>
3609 PR c++/93377 - ICE with member alias in constraint.
3610 * pt.c (any_template_parm_r): Look at template arguments for all
3611 aliases, not only alias templates.
3613 2020-01-24 Marek Polacek <polacek@redhat.com>
3615 PR c++/93299 - ICE in tsubst_copy with parenthesized expression.
3616 * pt.c (tsubst_copy): Handle a REF_PARENTHESIZED_P VIEW_CONVERT_EXPR.
3618 2020-01-24 Jason Merrill <jason@redhat.com>
3620 PR c++/92852 - ICE with generic lambda and reference var.
3621 * constexpr.c (maybe_constant_value): Likewise.
3623 2020-01-23 Paolo Carlini <paolo.carlini@oracle.com>
3626 * parser.c (cp_parser_nested_name_specifier_opt): Properly
3627 diagnose concept-ids.
3629 2020-01-23 Jason Merrill <jason@redhat.com>
3631 PR c++/93331 - ICE with __builtin_strchr.
3632 * constexpr.c (cxx_eval_builtin_function_call): Use the original
3633 argument if we didn't manage to extract a STRING_CST.
3635 PR c++/93345 - ICE with defaulted dtor and template.
3637 * decl.c (cxx_maybe_build_cleanup): Don't try to set
3638 throwing_cleanup in a template.
3640 2020-01-22 Marek Polacek <polacek@redhat.com>
3642 PR c++/92907 - noexcept does not consider "const" in member functions.
3643 * g++.dg/cpp0x/noexcept56.C: New test.
3645 2020-01-22 Marek Polacek <polacek@redhat.com>
3647 PR c++/93324 - ICE with -Wall on constexpr if.
3648 * semantics.c (is_std_constant_evaluated_p): Check fndecl.
3650 2020-01-22 Patrick Palka <ppalka@redhat.com>
3652 * constraint.cc (get_mapped_args): Avoid using auto_vec
3653 as a vector element. Release the vectors inside the lists
3655 * parser.c (cp_literal_operator_id): Free the buffer.
3657 2020-01-22 Jun Ma <JunMa@linux.alibaba.com>
3659 * coroutines.cc (finish_co_await_expr): Add error check on return
3660 value of build_co_await.
3661 (finish_co_yield_expr,): Ditto.
3663 2020-01-22 Jun Ma <JunMa@linux.alibaba.com>
3665 * coroutines.cc (lookup_awaitable_member): Lookup an awaitable member.
3666 (lookup_promise_method): Emit diagnostic when get NULL_TREE back only.
3667 (build_co_await): Use lookup_awaitable_member instead of lookup_member.
3669 2020-01-21 Jason Merrill <jason@redhat.com>
3671 PR c++/60855 - ICE with sizeof VLA capture.
3672 * lambda.c (is_lambda_ignored_entity): Don't look past VLA capture.
3674 PR c++/90732 - ICE with VLA capture and generic lambda.
3675 * pt.c (tsubst_lambda_expr): Repeat add_capture for VLAs.
3677 2020-01-21 Iain Sandoe <iain@sandoe.co.uk>
3678 Bin Cheng <bin.cheng@linux.alibaba.com>
3680 * coroutines.cc (coro_promise_type_found_p): Check for NULL return
3681 from complete_type_or_else.
3682 (register_param_uses): Likewise.
3683 (build_co_await): Do not try to use complete_type_or_else for void
3684 types, otherwise for incomplete types, check for NULL return from
3685 complete_type_or_else.
3687 2020-01-21 Jason Merrill <jason@redhat.com>
3689 PR c++/91476 - anon-namespace reference temp clash between TUs.
3690 * decl2.c (copy_linkage): Factor out of get_guard.
3691 * call.c (make_temporary_var_for_ref_to_temp): Use it.
3692 * decl.c (cp_finish_decomp): Use it.
3693 (cp_finish_decl): determine_visibility sooner.
3695 2020-01-21 Bin Cheng <bin.cheng@linux.alibaba.com>
3697 * coroutines.cc (finish_co_await_expr): Set return value flag.
3698 (finish_co_yield_expr, morph_fn_to_coro): Ditto.
3700 2020-01-19 Jason Merrill <jason@redhat.com>
3702 PR c++/33799 - destroy return value, take 2.
3703 * cp-tree.h (current_retval_sentinel): New macro.
3704 (struct language_function): Add throwing_cleanup bitfield.
3705 * decl.c (cxx_maybe_build_cleanup): Set it.
3706 * except.c (maybe_set_retval_sentinel)
3707 (maybe_splice_retval_cleanup): New functions.
3708 * parser.c (cp_parser_compound_statement): Call
3709 maybe_splice_retval_cleanup.
3710 * typeck.c (check_return_expr): Call maybe_set_retval_sentinel.
3712 * parser.c (cp_parser_lambda_body): Use cp_parser_function_body.
3714 2020-01-18 Jakub Jelinek <jakub@redhat.com>
3716 * coroutines.cc (get_fn_local_identifier): Fix NO_DOT_IN_LABEL
3717 but non-NO_DOLLAR_IN_LABEL case build.
3719 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
3721 * Make-lang.in: Add coroutines.o.
3722 * cp-tree.h (lang_decl-fn): coroutine_p, new bit.
3723 (DECL_COROUTINE_P): New.
3724 * lex.c (init_reswords): Enable keywords when the coroutine flag
3726 * operators.def (co_await): New operator.
3727 * call.c (add_builtin_candidates): Handle CO_AWAIT_EXPR.
3728 (op_error): Likewise.
3729 (build_new_op_1): Likewise.
3730 (build_new_function_call): Validate coroutine builtin arguments.
3731 * constexpr.c (potential_constant_expression_1): Handle
3732 CO_AWAIT_EXPR, CO_YIELD_EXPR, CO_RETURN_EXPR.
3733 * coroutines.cc: New file.
3734 * cp-objcp-common.c (cp_common_init_ts): Add CO_AWAIT_EXPR,
3735 CO_YIELD_EXPR, CO_RETRN_EXPR as TS expressions.
3736 * cp-tree.def (CO_AWAIT_EXPR, CO_YIELD_EXPR, (CO_RETURN_EXPR): New.
3737 * cp-tree.h (coro_validate_builtin_call): New.
3738 * decl.c (emit_coro_helper): New.
3739 (finish_function): Handle the case when a function is found to
3740 be a coroutine, perform the outlining and emit the outlined
3741 functions. Set a bit to signal that this is a coroutine component.
3742 * parser.c (enum required_token): New enumeration RT_CO_YIELD.
3743 (cp_parser_unary_expression): Handle co_await.
3744 (cp_parser_assignment_expression): Handle co_yield.
3745 (cp_parser_statement): Handle RID_CO_RETURN.
3746 (cp_parser_jump_statement): Handle co_return.
3747 (cp_parser_operator): Handle co_await operator.
3748 (cp_parser_yield_expression): New.
3749 (cp_parser_required_error): Handle RT_CO_YIELD.
3750 * pt.c (tsubst_copy): Handle CO_AWAIT_EXPR.
3751 (tsubst_expr): Handle CO_AWAIT_EXPR, CO_YIELD_EXPR and
3753 * tree.c (cp_walk_subtrees): Likewise.
3755 2020-01-17 Jason Merrill <jason@redhat.com>
3757 PR c++/92531 - ICE with noexcept(lambda).
3758 * pt.c (uses_template_parms): Don't try to enumerate all the
3761 2020-01-17 Jakub Jelinek <jakub@redhat.com>
3764 * parser.c (cp_parser_template_name): Look up deprecated attribute
3765 in DECL_TEMPLATE_RESULT or its type's attributes.
3767 2020-01-16 Jason Merrill <jason@redhat.com>
3769 PR c++/93286 - ICE with __is_constructible and variadic template.
3770 * pt.c (tsubst) [TREE_LIST]: Handle pack expansion.
3771 (tsubst_copy_and_build) [TRAIT_EXPR]: Always use tsubst for type2.
3773 PR c++/93280 - ICE with aggregate assignment and DMI.
3774 * init.c (get_nsdmi): Set TARGET_EXPR_DIRECT_INIT_P here.
3775 * typeck2.c (digest_nsdmi_init): Not here.
3777 2020-01-15 Paolo Carlini <paolo.carlini@oracle.com>
3780 * cp-tree.h (is_constrained_auto): New.
3781 * parser.c (cp_parser_maybe_commit_to_declaration): Correctly
3782 handle concept-check expressions; take a cp_decl_specifier_seq*
3784 (cp_parser_condition): Update call.
3785 (cp_parser_simple_declaration): Likewise.
3786 (cp_parser_placeholder_type_specifier): Correctly handle
3787 concept-check expressions.
3789 2020-01-15 Jason Merrill <jason@redhat.com>
3792 PR c++/33799 - destroy return value if local cleanup throws.
3793 * cp-tree.h (current_retval_sentinel): New macro.
3794 * decl.c (start_preparsed_function): Set up cleanup for retval.
3795 * typeck.c (check_return_expr): Set current_retval_sentinel.
3797 PR c++/93257 - consteval void function.
3798 * constexpr.c (verify_constant): Allow void_node.
3800 PR c++/92871 - bad code with xvalue and GNU ?: extension.
3801 * call.c (prevent_lifetime_extension): New.
3802 (build_conditional_expr_1): Use it.
3804 2020-01-14 Nathan Sidwell <nathan@acm.org>
3807 * pt.c (retrieve_specialization): Use get_template_info, not open
3811 * pt.c (retrieve_specialization): Get the TI from the decl or the
3812 classtype as appropriate.
3814 2020-01-14 David Malcolm <dmalcolm@redhat.com>
3816 * cp-gimplify.c (source_location_table_entry_hash::empty_zero_p):
3817 New static constant.
3818 * cp-tree.h (named_decl_hash::empty_zero_p): Likewise.
3819 (struct named_label_hash::empty_zero_p): Likewise.
3820 * decl2.c (mangled_decl_hash::empty_zero_p): Likewise.
3822 2020-01-14 Jason Merrill <jason@redhat.com>
3824 PR c++/92590 - wrong handling of inherited default ctor.
3825 * class.c (add_method): A constrained inherited ctor doesn't hide an
3826 implicit derived ctor.
3828 PR c++/92552 - ICE with inherited constrained default ctor.
3829 * pt.c (instantiate_class_template_1): Copy
3830 TYPE_HAS_USER_CONSTRUCTOR.
3831 PR c++/91930 - ICE with constrained inherited default ctor.
3832 * name-lookup.c (do_class_using_decl): Set TYPE_HAS_USER_CONSTRUCTOR
3833 for inherited constructor.
3834 PR c++/92594 - ICE with inherited trivial default ctor.
3835 * method.c (trivial_fn_p): Treat an inherited default constructor
3836 like a normal default constructor.
3838 PR c++/92594 - ICE with inherited trivial default ctor.
3839 * method.c (trivial_fn_p): Treat an inherited default constructor
3840 like a normal default constructor.
3842 PR c++/92009 - ICE with punning of typeid.
3843 * rtti.c (get_tinfo_desc): Call xref_basetypes.
3844 * constexpr.c (cxx_fold_indirect_ref): Don't strip
3847 2020-01-13 Jason Merrill <jason@redhat.com>
3849 PR c++/92746 - ICE with noexcept of function concept check.
3850 * except.c (check_noexcept_r): Handle concept-check.
3852 PR c++/92582 - ICE with member template as requirement.
3853 * pt.c (struct find_template_parameter_info): Add ctx_parms.
3854 (any_template_parm_r): Handle TEMPLATE_DECL.
3855 (find_template_parameters): Take parms instead of their depth.
3856 * constraint.cc (build_parameter_mapping): Pass them.
3858 PR c++/33799 - destroy return value if local cleanup throws.
3859 * cp-tree.h (current_retval_sentinel): New macro.
3860 * decl.c (start_preparsed_function): Set up cleanup for retval.
3861 * typeck.c (check_return_expr): Set current_retval_sentinel.
3863 PR c++/93238 - short right-shift with enum.
3864 * typeck.c (cp_build_binary_op): Use folded op1 for short_shift.
3866 2020-01-10 Jason Merrill <jason@redhat.com>
3868 * typeck.c (cp_build_binary_op): Restore short_shift code.
3870 PR c++/93143 - incorrect tree sharing with constexpr.
3871 * constexpr.c (cxx_eval_outermost_constant_expr): Don't assume
3872 CONSTRUCTORs are already unshared.
3874 PR c++/93173 - incorrect tree sharing.
3876 * cp-gimplify.c (cp_gimplify_init_expr, cp_gimplify_expr): Use
3877 copy_if_shared after cp_genericize_tree.
3878 * typeck2.c (split_nonconstant_init): Don't unshare here.
3880 2020-01-08 Jason Merrill <jason@redhat.com>
3882 * cp-gimplify.c (cp_gimplify_expr) [TARGET_EXPR]: Check
3883 TARGET_EXPR_DIRECT_INIT_P.
3884 * constexpr.c (cxx_eval_constant_expression): Likewise.
3886 2020-01-08 Jason Merrill <jason@redhat.com>
3888 PR c++/91369 - constexpr destructor and member initializer.
3889 * constexpr.c (cxx_eval_store_expression): Look through TARGET_EXPR
3890 when not preevaluating.
3892 2020-01-08 Jason Merrill <jason@redhat.com>
3894 * constexpr.c (cxx_eval_call_expression): Remove DECL_BY_REFERENCE
3897 2020-01-07 Paolo Carlini <paolo.carlini@oracle.com>
3899 * init.c (build_new): Add location_t parameter and use it throughout.
3900 (build_raw_new_expr): Likewise.
3901 * parser.c (cp_parser_new_expression): Pass the combined_loc.
3902 * pt.c (tsubst_copy_and_build): Adjust call.
3903 * cp-tree.h: Update declarations.
3905 2020-01-07 Jason Merrill <jason@redhat.com>
3907 PR c++/47877 - -fvisibility-inlines-hidden and member templates.
3908 * decl2.c (determine_visibility): -fvisibility-inlines-hidden beats
3909 explicit class visibility for a template.
3911 2020-01-07 Richard Sandiford <richard.sandiford@arm.com>
3913 * mangle.c (mangle_type_attribute_p): New function, split out from...
3914 (write_CV_qualifiers_for_type): ...here. Don't mangle attributes
3915 that contain a space.
3917 2020-01-07 Jakub Jelinek <jakub@redhat.com>
3920 * constexpr.c (struct constexpr_global_ctx): Add heap_alloc_count
3921 member, initialize it to zero in ctor.
3922 (cxx_eval_call_expression): Bump heap_dealloc_count when deleting
3923 a heap object. Don't cache calls to functions which allocate some
3924 heap objects and don't deallocate them or deallocate some heap
3925 objects they didn't allocate.
3927 2020-01-06 Jason Merrill <jason@redhat.com>
3929 PR c++/92552 - ICE with inherited constrained default ctor.
3930 * pt.c (instantiate_class_template_1): Copy
3931 TYPE_HAS_USER_CONSTRUCTOR.
3932 * class.c (one_inherited_ctor): Don't set it here.
3934 2020-01-06 Andrew Sutton <asutton@lock3software.com>
3936 PR c++/92739 - parsing requires clause with attributes.
3937 * parser.c (cp_parser_constraint_requires_parens): Exclude
3938 attributes as postfix expressions.
3940 2020-01-05 Jakub Jelinek <jakub@redhat.com>
3943 * parser.c (cp_parser_check_class_key): Disable access checks for the
3945 (cp_parser_maybe_warn_enum_key): Likewise. Return early if
3946 !warn_redundant_tags.
3948 2010-01-05 Jakub Jelinek <jakub@redhat.com>
3951 * cp-gimplify.c (cp_gimplify_init_expr): Don't look through
3952 TARGET_EXPR if it has been gimplified already.
3954 2020-01-03 Jason Merrill <jason@redhat.com>
3956 PR c++/93033 - incorrect tree node sharing with array init.
3957 * typeck2.c (split_nonconstant_init): Unshare non-decl.
3958 * cp-gimplify.c (cp_gimplify_init_expr): Only split if -fexceptions.
3960 2020-01-02 Jason Merrill <jason@redhat.com>
3962 * pt.c (invalid_nontype_parm_type_p): Reject class placeholder in
3965 2020-01-02 Jakub Jelinek <jakub@redhat.com>
3968 * cp-objcp-common.c (identifier_global_tag): Return NULL_TREE if name
3969 has not been found, rather than error_mark_node.
3971 2020-01-01 Jakub Jelinek <jakub@redhat.com>
3973 Update copyright years.
3975 Copyright (C) 2020 Free Software Foundation, Inc.
3977 Copying and distribution of this file, with or without modification,
3978 are permitted in any medium without royalty provided the copyright
3979 notice and this notice are preserved.