1 2020-08-18 Nathan Sidwell <nathan@acm.org>
3 * cp-tree.h (SET_TYPE_TEMPLTE_INFO): Do not deal with ALIAS templates.
4 * pt.c (lookup_template_class_1): Special-case alias template
7 2020-08-18 Jason Merrill <jason@redhat.com>
10 * pt.c (tsubst_aggr_type): Rewrite in C++17, too.
11 (maybe_dependent_member_ref): Likewise.
12 (build_deduction_guide): Re-substitute template parms.
13 * cp-tree.h (struct push_nested_class_guard): New.
14 * constraint.cc (get_normalized_constraints_from_decl): Use it.
16 2020-08-18 Jason Merrill <jason@redhat.com>
19 * pt.c (maybe_dependent_member_ref): New.
20 (tsubst_copy) [CONST_DECL]: Use it.
22 (tsubst_aggr_type): Handle nested type.
24 2020-08-18 Nathan Sidwell <nathan@acm.org>
26 * name-lookup.c (qualify_lookup): Drop lambda checking here.
27 Reorder namespace & type checking.
28 (lookup_name_1): Do hidden lambda checking here.
30 2020-08-14 Nathan Sidwell <nathan@acm.org>
32 * name-lookup.h (lookup_name_real, lookup_name_nonclass): Rename
34 (lookup_name): ... these new overloads.
35 * name-lookup.c (identifier_type_value_1): Rename lookup_name_real
37 (lookup_name_real_1): Rename to ...
38 (lookup_name_1): ... here.
39 (lookup_name_real): Rename to ...
40 (lookup_name): ... here. Rename lookup_name_real_1 call.
41 (lookup_name_nonclass): Delete.
42 * call.c (build_operator_new_call): Rename lookup_name_real call.
43 (add_operator_candidates): Likewise.
44 (build_op_delete_call): Rename lookup_name_nonclass call.
45 * parser.c (cp_parser_lookup_name): Likewise.
46 * pt.c (tsubst_friend_class, lookup_init_capture_pack): Likewise.
47 (tsubst_expr): Likewise.
48 * semantics.c (capture_decltype): Likewise.
50 2020-08-14 Nathan Sidwell <nathan@acm.org>
52 * cp-tree.h (LOOKUP_HIDDEN): Delete.
53 (LOOKUP_PREFER_RVALUE): Adjust initializer.
54 * name-lookup.h (enum class LOOK_want): Add HIDDEN_FRIEND and
56 (lookup_name_real): Drop flags parm.
57 (lookup_qualified_name): Drop find_hidden parm.
58 * name-lookup.c (class name_lookup): Drop hidden field, adjust
60 (name_lookup::add_overload): Check want for hiddenness.
61 (name_lookup::process_binding): Likewise.
62 (name_lookup::search_unqualified): Likewise.
63 (identifier_type_value_1): Adjust lookup_name_real call.
64 (set_decl_namespace): Adjust name_lookup ctor.
65 (qualify_lookup): Drop flags parm, use want for hiddenness.
66 (lookup_qualified_name): Drop find_hidden parm.
67 (lookup_name_real_1): Drop flags parm, adjust qualify_lookup
69 (lookup_name_real): Drop flags parm.
70 (lookup_name_nonclass, lookup_name): Adjust lookup_name_real
72 (lookup_type_scope_1): Adjust qualify_lookup calls.
73 * call.c (build_operator_new_call): Adjust lookup_name_real call.
74 (add_operator_candidates): Likewise.
75 * coroutines.cc (morph_fn_to_coro): Adjust lookup_qualified_name
77 * parser.c (cp_parser_lookup_name): Adjust lookup_name_real calls.
78 * pt.c (check_explicit_specialization): Adjust
79 lookup_qualified_name call.
80 (deduction_guides_for): Likewise.
81 (tsubst_friend_class): Adjust lookup_name_real call.
82 (lookup_init_capture_pack): Likewise.
83 (tsubst_expr): Likewise, don't look in namespaces.
84 * semantics.c (capture_decltype): Adjust lookup_name_real. Don't
87 2020-08-14 Jason Merrill <jason@redhat.com>
91 * cp-tree.h (unsafe_return_slot_p): Declare.
92 * call.c (is_base_field_ref): Rename to unsafe_return_slot_p.
93 (build_over_call): Check unsafe_return_slot_p.
94 (build_special_member_call): Likewise.
95 * init.c (expand_default_init): Likewise.
96 * typeck2.c (split_nonconstant_init_1): Likewise.
98 2020-08-14 Nathan Sidwell <nathan@acm.org>
100 * cp-tree.h (LOOKUP_PREFER_TYPES, LOOKUP_PREFER_NAMESPACES)
101 (LOOKUP_NAMESPACES_ONLY, LOOKUP_TYPES_ONLY)
102 (LOOKUP_QUALIFIERS_ONL): Delete.
103 (LOOKUP_HIDDEN): Adjust.
104 * name-lookup.h (enum class LOOK_want): New.
105 (operator|, operator&): Overloads for it.
106 (lookup_name_real): Replace prefer_type & namespaces_only with
108 (lookup_qualified_name): Replace prefer_type with LOOK_want.
109 (lookup_name_prefer_type): Replace with ...
110 (lookup_name): ... this. New overload with LOOK_want parm.
111 * name-lookup.c (struct name_lookup): Replace flags with want and
112 hidden fields. Adjust constructors.
113 (name_lookyp::add_overload): Correct hidden stripping test. Update
114 for new LOOK_want type.
115 (name_lookup::process_binding): Likewise.
116 (name_lookup::search_unqualified): Use hidden flag.
117 (identifier_type_value_1): Adjust lookup_name_real call.
118 (set_decl_namespace): Adjust name_lookup ctor.
119 (lookup_flags): Delete.
120 (qualify_lookup): Add LOOK_want parm, adjust.
121 (lookup_qualified_name): Replace prefer_type parm with LOOK_want.
122 (lookup_name_real_1): Replace prefer_type and namespaces_only with
124 (lookup_name_real): Likewise.
125 (lookup_name_nonclass, lookup_name): Adjust lookup_name_real call.
126 (lookup_name_prefer_type): Rename to ...
127 (lookup_name): ... here. New overload with LOOK_want parm.
128 (lookup_type_scope_1): Adjust qualify_lookup calls.
129 * call.c (build_operator_new_call)
130 (add_operator_candidates): Adjust lookup_name_real calls.
131 * coroutines.cc (find_coro_traits_template_decl)
132 (find_coro_handle_template_decl, morph_fn_to_coro): Adjust
133 lookup_qualified_name calls.
134 * cp-objcp-common.c (identifier_global_tag): Likewise.
135 * decl.c (get_tuple_size, get_tuple_decomp_init): Likewise.
136 (lookup_and_check_tag): Use lookup_name overload.
137 * parser.c (cp_parser_userdef_numeric_literal): Adjust
138 lookup_qualified_name call.
139 (prefer_arg_type): Drop template_mem_access parm, return LOOK_want
141 (cp_parser_lookup_name): Adjust lookup_member, lookup_name_real
143 * pt.c (check_explicit_specialization): Adjust lookup_qualified_name
145 (tsubst_copy_and_build, tsubst_qualified_name): Likewise
146 (deduction_guides_for): Likewise.
147 (tsubst_friend_class): Adjust lookup_name_real call.
148 (lookup_init_capture, tsubst_expr): Likewise.
149 * rtti.c (emit_support_tinfos): Adjust lookup_qualified_name call.
150 * semantics.c (omp_reduction_lookup): Likewise.
151 (capture_decltype): Adjust lookup_name_real call.
153 2020-08-13 Nathan Sidwell <nathan@acm.org>
155 * name-lookup.h (enum class LOOK_where): New.
156 (operator|, operator&): Overloads for it.
157 (lookup_name_real): Replace NONCLASS & BLOCK_P parms with WHERE.
158 * name-lookup.c (identifier_type_value_w): Adjust
159 lookup_name_real call.
160 (lookup_name_real_1): Replace NONCLASS and BLOCK_P parameters
161 with WHERE bitmask. Don't search namespaces if not asked to.
162 (lookup_name_real): Adjust lookup_name_real_1 call.
163 (lookup_name_nonclass, lookup_name)
164 (lookup_name_prefer_type): Likewise.
165 * call.c (build_operator_new_call)
166 (add_operator_candidates): Adjust lookup_name_real calls.
167 * parser.c (cp_parser_lookup_name): Likewise.
168 * pt.c (tsubst_friend_class, lookup_init_capture_pack)
169 (tsubst_expr): Likewise.
170 * semantics.c (capture_decltype): Likewise.
172 2020-08-13 Marek Polacek <polacek@redhat.com>
175 * typeck.c (build_static_cast_1): Implement P1975R0 by allowing
176 static_cast to aggregate type.
178 2020-08-10 Jakub Jelinek <jakub@redhat.com>
181 * constexpr.c (cxx_eval_binary_expression): For SPACESHIP_EXPR, tail
182 call cxx_eval_constant_expression after genericize_spaceship to avoid
183 undesirable further VERIFY_CONSTANT.
185 2020-08-10 Patrick Palka <ppalka@redhat.com>
187 * pt.c (resolve_overloaded_unification): Drop functions with
188 unsatisfied constraints.
189 (resolve_nondeduced_context): Likewise.
191 2020-08-05 Patrick Palka <ppalka@redhat.com>
192 Jason Merrill <jason@redhat.com>
195 * constexpr.c (cxx_eval_vec_init_1): Truncate ctx->ctor and
196 then clear CONSTRUCTOR_NO_CLEARING on each appended element
197 initializer if we're initializing a previously zero-initialized
200 2020-08-04 Marek Polacek <polacek@redhat.com>
203 * parser.c (cp_parser_elaborated_type_specifier): Allow
204 'template' following ::.
206 2020-08-04 Nathan Sidwell <nathan@acm.org>
208 * parser.c (cp_parser_explicit_specialization): Refactor
209 to avoid leak of num_template_parameter_lists value.
211 2020-08-04 Patrick Palka <ppalka@redhat.com>
214 * init.c (sort_mem_initializers): Preserve TREE_TYPE of the
215 member initializer list node.
216 (emit_mem_initializers): Set input_location when performing each
217 member initialization.
218 * parser.c (cp_parser_mem_initializer): Attach the source
219 location of this initializer to a dummy EMPTY_CLASS_EXPR
220 within the TREE_TYPE of the list node.
221 * pt.c (tsubst_initializer_list): Preserve TREE_TYPE of the
222 member initializer list node.
224 2020-08-03 Marek Polacek <polacek@redhat.com>
226 * cp-tree.h (after_nsdmi_defaulted_late_checks): Remove.
228 2020-08-03 Marek Polacek <polacek@redhat.com>
232 * pt.c (check_default_tmpl_args): Also consider variable
235 2020-07-31 Jakub Jelinek <jakub@redhat.com>
238 * decl.c (finish_function): In constexpr functions use for C++14 and
239 later error instead of warning if no return statement is present and
240 diagnose it regardless of warn_return_type. Move the warn_return_type
241 diagnostics earlier in the function.
243 2020-07-31 Martin Sebor <msebor@redhat.com>
246 * class.c (build_base_path): Set no-warning bit on the synthesized
247 conditional expression in static_cast.
249 2020-07-31 Richard Biener <rguenther@suse.de>
252 * cp-objcp-common.h (LANG_HOOKS_FINALIZE_EARLY_DEBUG):
253 Define to c_common_finalize_early_debug.
255 2020-07-31 Patrick Palka <ppalka@redhat.com>
258 * constexpr.c (cxx_eval_constant_expression) <case CONST_DECL>:
259 Pass false to decl_constant_value and decl_really_constant_value
260 so that they don't unshare their result.
261 * cp-tree.h (decl_constant_value): New declaration with an added
263 (decl_really_constant_value): Add bool parameter defaulting to
264 true to existing declaration.
265 * init.c (constant_value_1): Add bool parameter which controls
266 whether to unshare the initializer before returning. Call
267 unshare_expr at most once.
268 (scalar_constant_value): Pass true to constant_value_1's new
270 (decl_really_constant_value): Add bool parameter and forward it
272 (decl_constant_value): Likewise, but instead define a new
273 overload with an added bool parameter.
275 2020-07-30 Patrick Palka <ppalka@redhat.com>
278 * pt.c (resolve_overloaded_unification): If the function
279 template specialization has a placeholder return type,
280 then instantiate it before attempting unification.
282 2020-07-30 Patrick Palka <ppalka@redhat.com>
285 * pt.c (alias_ctad_tweaks): Call remove_constraints before
286 calling set_constraints.
288 2020-07-30 Patrick Palka <ppalka@redhat.com>
291 * pt.c (reduce_template_parm_level): Propagate DECL_VIRTUAL_P
292 from the original TEMPLATE_PARM_DECL to the new lowered one.
294 2020-07-30 Patrick Palka <ppalka@redhat.com>
297 * constraint.cc (constraints_satisfied_p): Return true if
299 * pt.c (do_type_instantiation): Update a paragraph taken from
300 [temp.explicit] to reflect the latest specification. Don't
301 instantiate a member with unsatisfied constraints.
303 2020-07-29 Jason Merrill <jason@redhat.com>
306 * cp-tree.h (IMPLICIT_RVALUE_P): New.
307 (enum cp_lvalue_kind_flags): Add clk_implicit_rval.
308 (implicit_rvalue_p, set_implicit_rvalue_p): New.
309 * call.c (reference_binding): Check clk_implicit_rval.
310 (build_over_call): Adjust C++20 implicit move.
311 * coroutines.cc (finish_co_return_stmt): Simplify implicit move.
312 * except.c (build_throw): Adjust C++20 implicit move.
313 * pt.c (tsubst_copy_and_build) [STATIC_CAST_EXPR]: Propagate
315 * tree.c (lvalue_kind): Set clk_implicit_rval.
316 * typeck.c (treat_lvalue_as_rvalue_p): Overhaul.
317 (maybe_warn_pessimizing_move): Adjust.
318 (check_return_expr): Adjust C++20 implicit move.
320 2020-07-29 Jason Merrill <jason@redhat.com>
323 * call.c (build_over_call): Don't call a const ref
324 overload for implicit move.
326 2020-07-28 Nathan Sidwell <nathan@acm.org>
328 * cp-gimplify.c (cp_genericize_r): Set IMPORTED_DECL's context.
329 * cp-objcp-common.c (cp_pushdecl): Set decl's context.
330 * decl.c (grokfndecl): Make DECL_CONTEXT setting clearer.
332 2020-07-28 Nathan Sidwell <nathan@acm.org>
334 * class.c (fixup_type_variants): Copy TYPE_SIZE and
336 (finish_struct): Call it.
338 2020-07-28 Nathan Sidwell <nathan@acm.org>
340 * ptree.c (cxx_print_decl): Better indentation.
342 2020-07-28 Jakub Jelinek <jakub@redhat.com>
343 Mark Wielaard <mark@klomp.org>
346 * parser.c (cp_lexer_safe_previous_token): Don't call
347 cp_lexer_previous_token, instead inline it by hand and return NULL
348 instead of failing assertion if all previous tokens until the first
350 (cp_parser_error_1): Optimize - only call cp_lexer_safe_previous_token
351 if token->type is CPP_NAME. Use cp_lexer_safe_previous_token instead
352 of cp_lexer_previous_token for the missing_token_desc != RT_NONE
355 2020-07-27 Nathan Sidwell <nathan@acm.org>
357 * cp-tree.h (enum cp_tree_index): Add CPTI_AS_BASE_IDENTIFIER.
358 (as_base_identifier): Define.
359 * decl.c (initialize_predifined_identifiers): Initialize as_base
361 * class.c (layout_class_type): Name the as-base type. Zap
362 NSDMI its fields may have.
364 2020-07-22 Nathan Sidwell <nathan@acm.org>
366 * class.c (maybe_add_class_template_decl_list): Don't add CONST_DECLs.
368 2020-07-22 Nathan Sidwell <nathan@acm.org>
370 * typeck.c (structural_comptypes): [DECLTYPE_TYPE] break
372 [UNDERLYING_TYPE]: Use an if.
375 2020-07-22 Nathan Sidwell <nathan@acm.org>
377 * decl.c (decls_match): Move variables into scopes
379 (duplicate_decls): Use STRIP_TEMPLATE.
380 (build_typename_type): Move var decls to their assignments.
381 (begin_function_body): Likewise.
382 * decl2.c (get_guard): Likewise.
383 (mark_used): Use true for truthiness.
384 * error.c (dump_aggr_type): Hold the decl in a var called
387 2020-07-22 Nathan Sidwell <nathan@acm.org>
389 * cp-tree.h (struct tree_lambda_expr): Shrink
390 default_capture_mode & discriminator.
392 2020-07-22 Nathan Sidwell <nathan@acm.org>
394 * mangle.c (decl_is_template_id): Rename to ...
395 (maybe_template_info): ... here. Return the template info,
396 rather than use a pointer. Adjust all callers.
397 (find_substitution): Use template_args_equal, rather than
400 2020-07-22 Tobias Burnus <tobias@codesourcery.com>
402 * parser.c (cp_parser_omp_clause_hint): Require nonnegative hint.
403 (cp_parser_omp_critical): Permit hint(0) clause without named critical.
404 * pt.c (tsubst_expr): Re-check the latter for templates.
406 2020-07-21 Sunil K Pandey <skpgkp2@gmail.com>
409 * decl.c (cp_finish_decl): Call target hook
410 lower_local_decl_alignment to lower local decl alignment.
412 2020-07-21 Nathan Sidwell <nathan@acm.org>
414 * parser.c (cp_lexer_consume_token): Drop PRAGMA_EOL assert.
415 (cp_parser_skip_to_closing_parenthesis_1): Only pass start token
416 to pragma skipper if recovering.
417 (cp_parser_skip_to_pragma_eol): Only purge and change pragma
418 state when recovering.
420 2020-07-20 Jason Merrill <jason@redhat.com>
422 * pt.c (type_dependent_expression_p): A pseudo-dtor can be
424 * semantics.c (finish_call_expr): Use build_trivial_dtor_call for
426 (finish_pseudo_destructor_expr): Leave type NULL for dependent arg.
428 2020-07-20 Jason Merrill <jason@redhat.com>
430 * mangle.c (write_base_ref): New.
431 (write_expression): Use it for base field COMPONENT_REFs.
432 * pt.c (invalid_tparm_referent_p): Canonicalize the type
433 of array offsets. Allow subobjects.
435 2020-07-20 Jason Merrill <jason@redhat.com>
437 * pt.c (collect_ctor_idx_types): Add 'const' when deducing from
440 2020-07-17 Marek Polacek <polacek@redhat.com>
443 * decl.c (grokdeclarator): Detect cv-qual decltype(auto).
444 * pt.c (do_auto_deduction): Likewise.
446 2020-07-16 Iain Sandoe <iain@sandoe.co.uk>
453 * coroutines.cc (struct coro_ret_data): Delete.
454 (coro_maybe_expand_co_return): Delete.
455 (co_return_expander): Delete.
456 (expand_co_returns): Delete.
457 (co_await_find_in_subtree): Remove unused name.
458 (build_actor_fn): Remove unused parm, remove handling
459 for co_return expansion.
460 (register_await_info): Demote duplicate info message to a
462 (coro_make_frame_entry): Move closer to use site.
463 (struct susp_frame_data): Add fields for final suspend label
464 and a flag to indicate await expressions with initializers.
465 (captures_temporary): Delete.
466 (register_awaits): Remove unused code, update comments.
467 (find_any_await): New.
468 (tmp_target_expr_p): New.
469 (struct interesting): New.
470 (find_interesting_subtree): New.
471 (struct var_nest_node): New.
472 (flatten_await_stmt): New.
473 (handle_nested_conditionals): New.
474 (process_conditional): New.
475 (replace_statement_captures): Rename to...
476 (maybe_promote_temps): ... this.
477 (maybe_promote_captured_temps): Delete.
478 (analyze_expression_awaits): Check for await expressions with
479 initializers. Simplify handling for truth-and/or-if.
480 (expand_one_truth_if): Simplify (map cases that need expansion
482 (await_statement_walker): Handle CO_RETURN_EXPR. Simplify the
483 handling for truth-and/or-if expressions.
484 (register_local_var_uses): Ensure that we create names in the
485 implementation namespace.
486 (morph_fn_to_coro): Add final suspend label to suspend frame
487 callback data and remove it from the build_actor_fn call.
489 2020-07-16 Marek Polacek <polacek@redhat.com>
491 * call.c (convert_like): Remove macro and introduce a new
493 (convert_like_with_context): Likewise.
494 (convert_like_real): Rename to convert_like.
495 (convert_like_real_1): Rename to convert_like_internal. Call
496 convert_like instead of convert_like_real therein.
497 (perform_direct_initialization_if_possible): Call convert_like
498 instead of convert_like_real.
500 2020-07-16 Iain Sandoe <iain@sandoe.co.uk>
502 * coroutines.cc: Correct some spelling errors
505 2020-07-15 Nathan Sidwell <nathan@acm.org>
507 * parser.c (cp_parser_declaration): Avoid copying tokens.
508 (cp_parser_block_declaration): RAII token pointer.
510 2020-07-15 Nathan Sidwell <nathan@acm.org>
512 * parser.c (cp_parser_skip_to_closing_parenthesis_1): Deal with
513 meeting a deferred pragma.
514 (cp_parser_skip_to_end_of_statement): Likewise.
515 (cp_parser_skip_to_end_of_block_or_statement): Likewise.
516 (cp_parser_skip_to_pragma_eol): We should never meet EOF.
517 (cp_parser_omp_declare_simd): Likewise.
518 (cp_parser_omp_declare_reduction, cp_parser_oacc_routine)
519 (pragma_lex): Likewise.
521 2020-07-14 Marek Polacek <polacek@redhat.com>
526 * call.c (convert_like_real_1): Renamed from convert_like_real.
527 (convert_like_real): New wrapper for convert_like_real_1.
529 2020-07-14 Nathan Sidwell <nathan@acm.org>
531 * parser.c (cp_lexer_alloc): Do not deal with PCH here.
532 (cp_lexer_new_main): Deal with PCH here. Store the tokens directly
534 (cp_lexer_new_from_tokens): Assert last token isn't purged either.
535 (cp_lexer_get_preprocessor_token): Change first arg to flags, adjust.
536 (cp_parser_new): Pass the lexer in, don't create it here.
537 (cp_parser_translation_unit): Initialize access checks here.
538 (cp_parser_initial_pragma): First token is provided by caller,
539 don't deal with PCH stopping here. Adjust error message.
540 (c_parse_file): Adjust, change error message to avoid C++20 module
543 2020-07-14 Nathan Sidwell <nathan@acm.org>
545 * ptree.c (cxx_print_type): Add TYPEOF_TYPE and BASES.
547 2020-07-14 Nathan Sidwell <nathan@acm.org>
549 * class.c (build_base_field_1): Cache CLASSTYPE_AS_BASE.
550 (build_self_reference): Rename value -> decl.
551 (dump_class_hierarchy_1): Cache CLASSTYPE_AS_BASE.
553 2020-07-14 Marek Polacek <polacek@redhat.com>
556 * decl.c (grokdeclarator) <case cdk_function>: Check also
557 pointers/references/... to functions.
559 2020-07-14 Nathan Sidwell <nathan@acm.org>
561 * cp-tree.h: Correct some tree lang flag comments,
562 reformat some structure definitions. Note some structure
563 sizes. Clarify some comments.
564 (yyungetc): Delete. Not been a thing for some time.
565 * class.c (copy_fndecl_with_name): Comment.
566 (check_bases_and_members): Unnecessary {}.
567 (layout_class_type): Comment.
568 * cp-tree.def (UNBOUND_CLASS_TEMPLATE): Adjust comment.
569 * decl.c: Fix some formatting & whitespace issues.
570 (function_requirements_equivalent_p): Note why
571 substitutions are needed.
572 * decl2.c (no_linkage_error): Note that heroics about
573 'typedef struct { ... };' are no longer needed.
574 * method.c: Whitespace.
575 * name-lookup.c: Whitespace.
576 (add_decl_to_level): Reformat a line.
577 (print_binding_stack): Mark as DEBUG_FUNCTION.
578 (has_using_namespace_std_directive_p): Delete comment.
580 * ptree.c: Whitespace.
581 * rtti.c: Whitespace & comment.
583 * typeck.c (structural_comptypes): Add comment.
585 2020-07-13 Nathan Sidwell <nathan@acm.org>
587 * Make-lang.in (c++.disclean): Likewise.
589 2020-07-13 Marek Polacek <polacek@redhat.com>
592 * parser.c (cp_parser_enum_specifier): Commit to tentative parse
593 after we've seen an opening brace.
595 2020-07-10 Jason Merrill <jason@redhat.com>
597 * tree.c (structural_type_p): Allow unions.
598 * mangle.c (write_expression): Express unions with a designator.
600 2020-07-10 Jason Merrill <jason@redhat.com>
602 * pt.c (convert_nontype_argument): Handle REAL_TYPE.
603 (invalid_nontype_parm_type_p): Allow all structural types.
604 * tree.c (structural_type_p): Use SCALAR_TYPE_P.
606 2020-07-10 Jason Merrill <jason@redhat.com>
611 * class.c (check_field_decls): An array of empty classes is not an
613 (layout_empty_base_or_field): Handle explicit alignment.
616 2020-07-09 Julian Brown <julian@codesourcery.com>
617 Thomas Schwinge <thomas@codesourcery.com>
620 * semantics.c (finish_omp_clauses): Likewise.
622 2020-07-09 Patrick Palka <ppalka@redhat.com>
625 * constexpr.c (potential_constant_expression_1) <case PARM_DECL>:
626 Restore dependent_type_p check that guarded the call to
627 is_really_empty_class.
629 2020-07-08 Patrick Palka <ppalka@redhat.com>
632 * constexpr.c (potential_constant_expression_1) <case PARM_DECL>:
633 When processing_template_decl, check COMPLETE_TYPE_P before
634 calling is_really_empty_class. Don't check dependent_type_p.
636 2020-07-08 Marek Polacek <polacek@redhat.com>
639 * parser.c (cp_parser_decltype): Print error about using decltype(auto)
640 in C++11. Check that the token following "auto" is ")".
642 2020-07-07 Patrick Palka <ppalka@redhat.com>
645 * cxx-pretty-print.c (pp_cxx_unqualified_id): Check
646 PRIMARY_TEMPLATE_P before printing the innermost template
649 2020-07-07 Martin Sebor <msebor@redhat.com>
652 * parser.c (class_decl_loc_t::diag_mismatched_tags): Print notes only
653 if warning_at returns nonzero.
655 2020-07-06 Martin Sebor <msebor@redhat.com>
658 * call.c (build_over_call): Check calls only when tf_warning is set.
660 2020-07-06 Nathan Sidwell <nathan@acm.org>
662 * decl.c (push_library_fn): Return the decl pushdecl_toplevel returns.
663 * except.c (verify_library_fn): Replace with ...
664 (declare_library_fn_1): ... this fn. Always push the fn.
665 (declare_library_fn): Call it.
666 (build_throw): Call declare_library_fn_1.
668 2020-07-06 Jonathan Wakely <jwakely@redhat.com>
671 * parser.c (cp_parser_toplevel_declaration): Only do pedwarn for
672 empty-declaration in C++98.
674 2020-07-02 Jason Merrill <jason@redhat.com>
675 Jakub Jelinek <jakub@redhat.com>
677 * decl.c (grokfndecl): Allow consteval virtual.
678 * search.c (check_final_overrider): Check consteval mismatch.
679 * constexpr.c (cxx_eval_thunk_call): New.
680 (cxx_eval_call_expression): Call it.
681 * cvt.c (cp_get_fndecl_from_callee): Handle FDESC_EXPR.
682 * decl2.c (mark_vtable_entries): Track vtables with consteval.
683 (maybe_emit_vtables): Pass consteval_vtables through.
684 (clear_consteval_vfns): Replace consteval with nullptr.
685 (c_parse_final_cleanups): Call it.
687 2020-07-01 Nathan Sidwell <nathan@acm.org>
689 * class.c (copy_fndecl_with_name): Add additional predicate args, do
690 not deduce them locally.
691 (copy_operator_fn): Adjust copy_fndecl_with_name call.
692 (build_clone): Add vtt and inherited predicate args. Pass through
693 to copy_fndecl_with_name call.
694 (build_cdtor_clones): Likewise, pass through to build_clone as
696 (build_cdtor): Determine vtt and inherited here.
697 * cp-tree.h (DECL_NEEDS_CTT_PARM_P): Delete.
699 2020-06-30 Nathan Sidwell <nathan@acm.org>
701 * cp-tree.h (copy_fndecl_with_name): Rename to ...
702 (copy_operatorn_fn): ... this. Change arg type.
703 (clone_function_decl): Rename to ...
704 (clone_cdtor): ... this.
705 * class.c (copy_fndecl_with_name): Make static.
706 (copy_operator_fn): New wrapper.
707 (build_clones): Rename to ...
708 (build_cdtor_clones): ... this.
709 (clone_function_decl): Rename to ...
710 (clone_cdtor): ... this. Adjust build_clones calls.
711 (clone_constructors_and_destructors): Adjust clone_function_decl
713 * method.c (implicitly_declare_fn): Adjust copy_fndecl_with_name
715 (lazily_declare_fn): Adjust clone_function_decl call.
716 * pt.c (tsubst_function_decl): Likewise.
717 (instantiate_template_1): Likewise.
719 2020-06-30 Iain Sandoe <iain@sandoe.co.uk>
721 * coroutines.cc (morph_fn_to_coro): Remove trailing
722 space in a diagnostic.
724 2020-06-30 Iain Sandoe <iain@sandoe.co.uk>
726 * coroutines.cc (expand_one_await_expression): Remove
727 code dealing with initial suspend.
728 (build_actor_fn): Remove code special-casing initial
729 and final suspend. Handle the final suspend and marking
730 of the coroutine as done.
731 (coro_rewrite_function_body): New.
732 (bind_expr_find_in_subtree): Remove.
733 (coro_body_contains_bind_expr_p): Remove.
734 (morph_fn_to_coro): Split the rewrite of the original
735 function into coro_rewrite_function_body and call it.
737 2020-06-29 Marek Polacek <polacek@redhat.com>
740 * decl.c (duplicate_decls): Make sure a concept or a variable
741 template is unique in its declarative region.
743 2020-06-29 Marek Polacek <polacek@redhat.com>
746 * pt.c (collect_ctor_idx_types): Use TREE_TYPE.
748 2020-06-28 Iain Sandoe <iain@sandoe.co.uk>
751 * coroutines.cc (register_local_var_uses): Skip past
754 2020-06-27 Iain Sandoe <iain@sandoe.co.uk>
757 * coroutines.cc (get_awaitable_var): New helper.
758 (build_co_await): Check more carefully before
759 copying an awaitable.
760 (expand_one_await_expression): No initializer
761 is required when the awaitable is not a temp.
762 (register_awaits): Remove handling that is now
763 completed when the await expression is built.
765 2020-06-27 Iain Sandoe <iain@sandoe.co.uk>
767 * coroutines.cc (morph_fn_to_coro): Diagnose unavailable
768 get_return_object_on_allocation_failure.
770 2020-06-26 Iain Sandoe <iain@sandoe.co.uk>
773 * coroutines.cc (struct coroutine_info):Add a field
774 to hold computed p.return_void expressions.
775 (coro_build_promise_expression): New.
776 (get_coroutine_return_void_expr): New.
777 (finish_co_yield_expr): Build the promise expression
778 using coro_build_promise_expression.
779 (finish_co_return_stmt): Likewise.
780 (build_init_or_final_await): Likewise.
781 (morph_fn_to_coro): Likewise, for several cases.
783 2020-06-26 Iain Sandoe <iain@sandoe.co.uk>
785 * coroutines.cc (morph_fn_to_coro): Handle error
786 returns in building g-r-o-o-a-f expressions.
788 2020-06-24 Nicholas Krause <xerofoify@gmail.com>
791 * typeck2.c (cxx_incomplete_type_diagnostic): Add missing
792 TYPE_EXPANSION_PACK check for diagnosing incomplete types in
793 cxx_incomplete_type_diagnostic.
795 2020-06-24 Iain Sandoe <iain@sandoe.co.uk>
799 * coroutines.cc (act_des_fn): Copy function
800 attributes onto the outlined coroutine helpers.
802 2020-06-24 Jason Merrill <jason@redhat.com>
804 * call.c (build_over_call): Only call build_base_path once.
806 2020-06-24 Jason Merrill <jason@redhat.com>
809 * call.c (build_over_call): Look up the overrider in base_binfo.
810 * class.c (lookup_vfn_in_binfo): Look through BINFO_PRIMARY_P.
812 2020-06-23 Jason Merrill <jason@redhat.com>
815 Implement C++20 P2082R1, Fixing CTAD for aggregates.
816 * cp-tree.h (TPARMS_PRIMARY_TEMPLATE): Split out from...
817 (DECL_PRIMARY_TEMPLATE): ...here.
818 (builtin_guide_p): Declare.
819 * decl.c (reshape_init_class): Handle bases of a template.
820 (reshape_init_r): An array with dependent bound takes a single
822 * pt.c (tsubst_default_argument): Shortcut {}.
823 (unify_pack_expansion): Allow omitted arguments to trailing pack.
824 (builtin_guide_p): New.
825 (collect_ctor_idx_types): Give a trailing pack a {} default
826 argument. Handle arrays better.
828 2020-06-23 Iain Sandoe <iain@sandoe.co.uk>
831 * coroutines.cc (morph_fn_to_coro): Apply a cleanup to
832 the get return object when the DTOR is non-trivial.
834 2020-06-20 Iain Sandoe <iain@sandoe.co.uk>
837 * coroutines.cc (morph_fn_to_coro): Update handling of
838 get-return-object-on-allocation-fail and diagnose missing
841 2020-06-20 Jason Merrill <jason@redhat.com>
843 * call.c (joust): Only compare constraints for non-template
844 candidates with matching parameters.
845 * pt.c (tsubst_pack_expansion): Fix getting a type parameter
847 (more_specialized_fn): Only compare constraints for candidates with
850 2020-06-19 Jason Merrill <jason@redhat.com>
852 * method.c (early_check_defaulted_comparison): Allow defaulting
853 comparison outside class. Complain if non-member operator isn't a
856 2020-06-18 Jason Merrill <jason@redhat.com>
858 * method.c (early_check_defaulted_comparison): Check for &&.
859 (build_comparison_op): Allow empty union. Diagnose non-category
861 (common_comparison_type): Remove handling for non-category type.
863 2020-06-18 Marek Polacek <polacek@redhat.com>
866 * pt.c (finish_template_variable): Return if
867 coerce_innermost_template_parms return error_mark_node.
869 2020-06-18 Marek Polacek <polacek@redhat.com>
872 * pt.c (tsubst_copy_and_build) <case NEW_EXPR>: Return error_mark_node
873 if placement is erroneous.
875 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
878 * parser.c (cp_parser_elaborated_type_specifier): Do not warn
879 unless in a declaration.
881 2020-06-17 Jason Merrill <jason@redhat.com>
883 * cp-tree.h (copy_fndecl_with_name): Declare.
884 * class.c (copy_fndecl_with_name): Split out from...
885 (build_clone): ...here.
886 (add_implicitly_declared_members): Add op== to TYPE_FIELDS.
887 * method.c (implicitly_declare_fn): Use copy_fndecl_with_name.
889 2020-06-17 Jason Merrill <jason@redhat.com>
891 * call.c (build_new_op_1): Don't look for a CALL_EXPR when
892 calling a consteval function.
894 2020-06-17 Jason Merrill <jason@redhat.com>
896 * decl2.c (grokfield): Pass SD_DEFAULTED and SD_DELETED.
897 * decl.c (duplicate_decls): Reduce error for delete
898 after earlier declaration to pedwarn.
900 2020-06-17 Marek Polacek <polacek@redhat.com>
903 * constexpr.c (maybe_fold_non_dependent_expr): New.
904 * cp-tree.h (maybe_fold_non_dependent_expr): Declare.
905 * typeck.c (cp_build_array_ref): Call maybe_fold_non_dependent_expr
906 instead of maybe_constant_value.
908 2020-06-16 Marek Polacek <polacek@redhat.com>
911 * call.c (add_list_candidates): Return if a designated initializer
912 is used with a non-aggregate.
913 (implicit_conversion_error): Give an error for the case above.
915 2020-06-16 Marek Polacek <polacek@redhat.com>
918 * name-lookup.c (check_local_shadow): Check if types are
919 non-null before calling same_type_p.
921 2020-06-16 Jakub Jelinek <jakub@redhat.com>
923 * semantics.c (handle_omp_for_class_iterator): Adjust
924 c_omp_check_loop_iv_exprs caller.
925 (finish_omp_for): Likewise. Don't call fold_build_cleanup_point_expr
926 before calling c_finish_omp_for and c_omp_check_loop_iv, move it
928 * pt.c (tsubst_omp_for_iterator): Handle non-rectangular loops.
930 2020-06-16 Jakub Jelinek <jakub@redhat.com>
932 * parser.c (cp_parser_omp_clause_schedule): Reject modifier separated
933 from kind by comma rather than colon.
935 2020-06-16 Patrick Palka <ppalka@redhat.com>
937 * pt.c (perform_instantiation_time_access_checks): No need to
939 * semantics.c (enforce_access): Verify that decl is not
942 2020-06-16 Patrick Palka <ppalka@redhat.com>
946 * cp-tree.h (qualified_typedef_usage_s): Delete.
947 (qualified_typedef_usage_t): Delete.
948 (deferred_access_check): Move up in file.
949 (tree_template_info::typedefs_needing_access_checking): Delete.
950 (tree_template_info::deferred_access_checks): New field.
951 (TI_TYPEDEFS_NEEDING_ACCESS_CHECKING): Rename to ...
952 (TI_DEFERRED_ACCESS_CHECKS): ... this, and adjust accordingly.
953 * pt.c (perform_typedefs_access_check): Rename to ...
954 (perform_instantiation_time_access_checks): ... this, and adjust
955 accordingly. Remove unnecessary tree tests.
956 (instantiate_class_template_1): Adjust accordingly.
957 (instantiate_decl): Likewise.
958 * semantics.c (enforce_access): Likewise.
960 2020-06-16 Patrick Palka <ppalka@redhat.com>
964 * call.c (enforce_access): Move to semantics.c.
965 * cp-tree.h (enforce_access): Delete.
966 (get_types_needing_access_check): Delete.
967 (add_typedef_to_current_template_for_access_check): Delete.
968 * decl.c (make_typename_type): Adjust accordingly. Use
969 check_accessibility_of_qualified_id instead of directly using
970 perform_or_defer_access_check.
971 * parser.c (cp_parser_template_declaration_after_parameters):
972 Don't push a dk_no_check access state when parsing a template.
973 * pt.c (get_types_needing_access_check): Delete.
974 (append_type_to_template_for_access_check_1): Delete.
975 (perform_typedefs_access_check): Adjust. If type_decl is a
976 FIELD_DECL, also check its DECL_CONTEXT for dependence. Use
977 tsubst_copy instead of tsubst to substitute into type_decl so
978 that we substitute into the DECL_CONTEXT of a FIELD_DECL.
979 (append_type_to_template_for_access_check): Delete.
980 * search.c (accessible_p): Remove the processing_template_decl
982 * semantics.c (enforce_access): Moved from call.c. If we're
983 parsing a template and the access check failed, add the check to
984 TI_TYPEDEFS_NEEDING_ACCESS_CHECKING.
985 (perform_or_defer_access_check): Adjust comment.
986 (add_typedef_to_current_template_for_access_check): Delete.
987 (check_accessibility_of_qualified_id): Adjust accordingly.
988 Exit early if the scope is dependent.
990 2020-06-11 Patrick Palka <ppalka@redhat.com>
993 * constraint.cc (associate_classtype_constraints): If there is a
994 discrepancy between the current template depth and the template
995 depth of the original declaration, then adjust the template
996 parameter depth within the current constraints appropriately.
997 * pt.c (tsubst_friend_class): Substitute into and set the
998 constraints on the injected declaration.
1000 2020-06-11 Iain Sandoe <iain@sandoe.co.uk>
1002 * coroutines.cc (instantiate_coro_traits): Pass a reference
1003 to lambda closure objects to traits instantiation.
1004 (morph_fn_to_coro): Likewise for promise parameter
1005 preview and allocator lookup.
1007 2020-06-10 Iain Sandoe <iain@sandoe.co.uk>
1010 * call.c (add_candidates): Use vec_safe_length() for
1011 testing the arguments list.
1012 (build_new_method_call_1): Use vec_safe_is_empty() when
1013 checking for an empty args list.
1015 2020-06-10 Marek Polacek <polacek@redhat.com>
1018 * parser.c (cp_parser_direct_declarator): Clear
1019 CP_PARSER_FLAGS_DELAY_NOEXCEPT if the declarator kind is not
1022 2020-06-09 Iain Sandoe <iain@sandoe.co.uk>
1025 * coroutines.cc (expand_one_await_expression): Build separate
1026 DTOR trees for the awaitable object on the destroy and resume
1029 2020-06-09 Jason Merrill <jason@redhat.com>
1032 * cp-gimplify.c (predeclare_vla): Only predeclare a VLA if it's
1033 wrapped in a pointer type.
1035 2020-06-05 Marek Polacek <polacek@redhat.com>
1038 * call.c (build_converted_constant_expr_internal): Allow
1039 list-initialization.
1041 2020-06-05 Iain Sandoe <iain@sandoe.co.uk>
1043 * cp-tree.def (CO_RETURN_EXPR): Correct the class
1044 to use tcc_statement.
1046 2020-06-05 Jason Merrill <jason@redhat.com>
1048 * error.c (dump_binary_op): Handle negative operand to
1051 2020-06-04 Jason Merrill <jason@redhat.com>
1054 * constexpr.c (cxx_eval_constant_expression) [OBJ_TYPE_REF]:
1055 Evaluate OBJ_TYPE_REF_EXPR.
1057 2020-06-04 Jason Merrill <jason@redhat.com>
1060 * class.c (lookup_vfn_in_binfo): New.
1061 * call.c (build_over_call): Use it.
1062 * cp-tree.h (resolves_to_fixed_type_p): Add default argument.
1063 (lookup_vfn_in_binfo): Declare.
1065 2020-06-04 Iain Sandoe <iain@sandoe.co.uk>
1068 * coroutines.cc (morph_fn_to_coro): Ensure that the get-
1069 return-object is constructed correctly; When it is not the
1070 final return value, pass it to the CTOR of the return type
1071 as an rvalue, per the standard comment.
1073 2020-06-04 Jakub Jelinek <jakub@redhat.com>
1077 * constexpr.c (cxx_eval_constant_expression): Diagnose CONVERT_EXPR
1078 conversions from pointer types to arithmetic types here...
1079 (cxx_eval_outermost_constant_expr): ... instead of here.
1081 2020-06-03 Mark Wielaard <mark@klomp.org>
1083 * parser.c (cp_lexer_safe_previous_token): New function.
1084 (cp_parser_error_1): Add name_hint if the previous token is
1085 a string literal and next token is a CPP_NAME and we have a
1086 missing header suggestion for the name.
1088 2020-06-03 Patrick Palka <ppalka@redhat.com>
1090 * pt.c (process_partial_specialization): Pass the full set of
1091 generic template arguments to strictly_subsumes.
1093 2020-06-03 Patrick Palka <ppalka@redhat.com>
1096 * pt.c (most_specialized_partial_spec): Reorganize the loop over
1097 DECL_TEMPLATE_SPECIALIZATIONS. Check constraints_satisfied_p on
1098 the original template declaration, not on the tsubsted one.
1100 2020-06-03 Iain Sandoe <iain@sandoe.co.uk>
1103 * coroutines.cc (finish_co_await_expr): Revise to allow for
1105 (finish_co_yield_expr): Likewise.
1107 2020-06-03 Jason Merrill <jason@redhat.com>
1110 * cp-tree.h (predeclare_vla): Declare.
1111 * cp-gimplify.c (predeclare_vla): Handle getting a decl.
1112 * pt.c (tsubst_expr) [DECL_EXPR]: Use it.
1114 2020-06-03 Tobias Burnus <tobias@codesourcery.com>
1116 * cp-gimplify.c (cxx_omp_predetermined_mapping): New.
1117 * cp-objcp-common.h (LANG_HOOKS_OMP_PREDETERMINED_MAPPING): Redfine.
1118 * cp-tree.h (cxx_omp_predetermined_mapping): Declare.
1120 2020-06-02 Jason Merrill <jason@redhat.com>
1123 * pt.c (tsubst_decl): Relax assert.
1125 2020-06-02 Iain Sandoe <iain@sandoe.co.uk>
1128 * coroutines.cc (build_co_await): Wrap the co_await expression
1129 in a TARGET_EXPR, where needed.
1130 (finish_co_yield_expr): Likewise.
1132 2020-06-02 Patrick Palka <ppalka@redhat.com>
1136 * pt.c (tsubst_function_decl): Don't do set_constraints when
1137 regenerating a lambda.
1138 (tsubst_lambda_expr): Substitute into the lambda's constraints
1139 and do set_constraints here.
1141 2020-06-01 Jason Merrill <jason@redhat.com>
1146 * class.c (build_vfn_ref): Revert 95311 change.
1147 * cp-ubsan.c (cp_ubsan_maybe_instrument_member_call): Build a
1150 2020-06-01 Iain Sandoe <iain@sandoe.co.uk>
1153 * coroutines.cc (struct param_info): Remove rv_ref field.
1154 (build_actor_fn): Remove specifial rvalue ref handling.
1155 (morph_fn_to_coro): Likewise.
1157 2020-05-31 Iain Sandoe <iain@sandoe.co.uk>
1160 * coroutines.cc (morph_fn_to_coro): If we see an
1161 early fatal error, drop the erroneous function body.
1163 2020-05-31 Iain Sandoe <iain@sandoe.co.uk>
1165 * coroutines.cc (build_co_await): Remove unused
1167 (finish_co_await_expr): Likewise.
1168 (finish_co_yield_expr): Likewise; revise comment.
1170 2020-05-30 Iain Sandoe <iain@sandoe.co.uk>
1172 * coroutines.cc (morph_fn_to_coro): Revise initialization
1173 of the frame pointer to avoid an unused value.
1175 2020-05-30 Patrick Palka <ppalka@redhat.com>
1178 * constraint.cc (satisfaction_value): Accept INTEGER_CST of any
1181 2020-05-29 Patrick Palka <ppalka@redhat.com>
1182 Jason Merrill <jason@redhat.com>
1185 * class.c (add_method): Let special member function templates
1186 coexist if they are not equivalently constrained, or in a class
1189 2020-05-29 Jason Merrill <jason@redhat.com>
1192 * pt.c (process_template_parm): Set DECL_TEMPLATE_INFO
1193 on the DECL_TEMPLATE_RESULT.
1195 2020-05-29 Marek Polacek <polacek@redhat.com>
1198 * cp-gimplify.c (cp_fold) <case MODIFY_EXPR>: Don't set
1199 TREE_THIS_VOLATILE here.
1200 (cp_fold): Set it here along with TREE_NO_WARNING.
1202 2020-05-29 Jason Merrill <jason@redhat.com>
1206 * class.c (build_vfn_ref): Don't fold the INDIRECT_REF.
1208 2020-05-29 Patrick Palka <ppalka@redhat.com>
1213 * parser.c (cp_parser_requires_clause_expression): Temporarily
1214 increment processing_template_decl only if it is 0.
1215 (cp_parser_constraint_expression): Likewise.
1216 (cp_parser_requires_expression): Likewise.
1218 2020-05-29 Patrick Palka <ppalka@redhat.com>
1221 * constexpr.c (get_or_insert_ctor_field): Add limited support
1222 for RANGE_EXPR index lookups.
1224 2020-05-28 Jakub Jelinek <jakub@redhat.com>
1227 * decl.c (cp_finish_decomp): Call complete_type before checking
1230 2020-05-28 Jason Merrill <jason@redhat.com>
1233 * decl.c (cp_finish_decl): Revert r9-297 change.
1234 (check_static_variable_definition): Likewise.
1235 * constexpr.c (ensure_literal_type_for_constexpr_object): Likewise.
1236 * pt.c (instantiate_decl): Return early on type error.
1238 2020-05-27 Jason Merrill <jason@redhat.com>
1241 * decl.c (reshape_init_array_1): Don't reuse in overload context.
1243 2020-05-27 Jason Merrill <jason@redhat.com>
1246 * call.c (build_new_op_1): Suppress
1247 warn_zero_as_null_pointer_constant across comparison of <=> result
1250 2020-05-27 Jason Merrill <jason@redhat.com>
1253 * decl.c (grokdeclarator): Don't shift attributes in TYPENAME
1256 2020-05-27 Nathan Sidwell <nathan@acm.org>
1259 * pt.c (lookup_template_class_1): Restore alias template mutation.
1261 2020-05-26 Jakub Jelinek <jakub@redhat.com>
1264 * cp-gimplify.c: Include omp-general.h.
1265 (cp_genericize_r) <case OMP_DISTRIBUTE>: For class iteration
1266 variables in composite distribute parallel for, instantiate copy
1267 ctor of their types.
1269 2020-05-23 Patrick Palka <ppalka@redhat.com>
1272 * constexpr.c (cxx_eval_constant_expression)
1273 <case TEMPLATE_ID_EXPR>: Don't evaluate the concept when
1274 constexpr evaluation is uid-sensitive.
1276 2020-05-22 Jason Merrill <jason@redhat.com>
1278 * cp-gimplify.c (cp_gimplify_expr) [CALL_EXPR]: Don't preevaluate
1279 the function address if the call used operator syntax.
1281 2020-05-21 Jason Merrill <jason@redhat.com>
1284 * cp-ubsan.c (cp_ubsan_maybe_instrument_member_call): For a virtual
1285 call, instrument the OBJ_TYPE_REF.
1287 * decl.c (compute_array_index_type_loc): Diagnose expressions
1288 in a template that can't be constant.
1289 * parser.c (cp_parser_direct_declarator): Don't check
1290 non-constant array bounds here.
1292 * cp-tree.h (is_rvalue_constant_expression): Declare.
1293 * constexpr.c (is_rvalue_constant_expression): New.
1294 * parser.c (cp_parser_constant_expression): Use it.
1295 * decl.c (cp_finish_decl): Try to treat a constexpr initializer in a
1296 template as constant.
1298 * typeck.c (build_x_modify_expr): Handle error_mark_node arguments.
1300 * decl.c (grokparms): Return NULL_TREE if any parms were erroneous.
1302 2020-05-21 Iain Sandoe <iain@sandoe.co.uk>
1304 * coroutines.cc (finish_co_return_stmt): Revert change to use
1307 2020-05-21 Patrick Palka <ppalka@redhat.com>
1310 * constexpr.c (constexpr_ctx::uid_sensitive): Remove field.
1311 (uid_sensitive_constexpr_evaluation_value): Define.
1312 (uid_sensitive_constexpr_evaluation_true_counter): Define.
1313 (uid_sensitive_constexpr_evaluation_p): Define.
1314 (uid_sensitive_constexpr_evaluation_sentinel): Define its
1316 (uid_sensitive_constexpr_evaluation_checker): Define its
1317 constructor and its evaluation_restricted_p method.
1318 (get_fundef_copy): Remove 'ctx' parameter. Use u_s_c_e_p
1319 instead of constexpr_ctx::uid_sensitive.
1320 (cxx_eval_call_expression): Use u_s_c_e_p instead, and test it
1321 last. Adjust call to get_fundef_copy.
1322 (instantiate_cx_fn_r): Test u_s_c_e_p so that we increment the
1323 counter if necessary.
1324 (cxx_eval_outermost_constant_expr): Remove 'uid_sensitive'
1325 parameter. Adjust function body accordingly.
1326 (maybe_constant_value): Remove 'uid_sensitive' parameter and
1327 adjust function body accordingly. Set up a
1328 uid_sensitive_constexpr_evaluation_checker, and use it to
1329 conditionally update the cv_cache.
1330 * cp-gimplify.c (cp_fold): Set up a
1331 uid_sensitive_constexpr_evaluation_checker, and use it to
1332 conditionally update the fold_cache.
1333 * cp-tree.h (maybe_constant_value): Update declaration.
1334 (struct uid_sensitive_constexpr_evaluation_sentinel): Define.
1335 (struct sensitive_constexpr_evaluation_checker): Define.
1336 * expr.c (fold_for_warn): Set up a
1337 uid_sensitive_constexpr_evaluation_sentinel before calling
1338 the folding subroutines. Drop all but the first argument to
1339 maybe_constant_value.
1341 2020-05-20 Marek Polacek <polacek@redhat.com>
1344 * parser.c (cp_parser_unqualified_id): Reject simple-template-id as
1345 the declarator-id of a destructor.
1346 (cp_parser_constructor_declarator_p): Reject simple-template-id as
1347 the declarator-id of a constructor.
1349 2020-05-20 Marek Polacek <polacek@redhat.com>
1353 * cp-tree.h (SD_DECOMPOSITION): New flag.
1354 * decl.c (duplicate_decls): Make sure a structured binding is unique
1355 in its declarative region.
1356 (start_decl): If INITIALIZED is SD_DECOMPOSITION, call
1357 fit_decomposition_lang_decl.
1358 (grokdeclarator): Compare INITIALIZED directly to SD_* flags.
1359 * parser.c (cp_parser_decomposition_declaration): Pass SD_DECOMPOSITION
1362 2020-05-20 Patrick Palka <ppalka@redhat.com>
1365 * typeck.c (structural_comptypes): Don't perform
1366 context-dependent resolution of TYPENAME_TYPEs when
1367 comparing_specializations.
1369 2020-05-19 Nathan Sidwell <nathan@acm.org>
1371 * pt.c (lookup_template_class_1): Do not reinit template_info of an
1374 2020-05-18 Martin Sebor <msebor@redhat.com>
1377 * call.c ((maybe_warn_class_memaccess): Use is_byte_access_type.
1378 * cp-tree.h (is_dummy_object): Return bool.
1379 (is_byte_access_type): Declare new function.
1380 * tree.c (is_dummy_object): Return bool.
1381 (is_byte_access_type): Define new function.
1383 2020-05-19 Patrick Palka <ppalka@redhat.com>
1386 * pt.c (init_template_processing): Enable sanitization for
1387 decl_specializations and type_specializations.
1390 * pt.c (fn_type_unification): Pass 'fn' instead of NULL_TREE as
1391 the 'in_decl' parameter to coerce_template_parms.
1393 2020-05-18 Marek Polacek <polacek@redhat.com>
1396 * typeck.c (cp_build_binary_op): Use fold_for_warn instead of
1399 2020-05-18 Marek Polacek <polacek@redhat.com>
1402 * cvt.c (cp_get_fndecl_from_callee): Return NULL_TREE if the function
1403 type is not INDIRECT_TYPE_P.
1404 * decl.c (omp_declare_variant_finalize_one): Call
1405 cp_get_callee_fndecl_nofold instead of looking for the function decl
1408 2020-05-18 Marek Polacek <polacek@redhat.com>
1411 * parser.c (cp_parser_has_attribute_expression): Sorry on a
1412 type-dependent argument.
1414 2020-05-18 Marek Polacek <polacek@redhat.com>
1418 * call.c (add_builtin_candidate) <case EQ_EXPR>: Create candidate
1419 operator functions when type is std::nullptr_t for ==/!=.
1420 * typeck.c (composite_pointer_type_r): Add a bool * parameter. Use it
1421 to maybe add "const" to the pointer type.
1422 (composite_pointer_type): Update the call to composite_pointer_type_r.
1423 (cp_build_binary_op): Turn two warning_at into error_at. Print the
1426 2020-05-18 Jason Merrill <jason@redhat.com>
1428 * call.c (build_over_call): Remove unnecessary
1429 cp_stabilize_reference.
1431 2020-05-18 Marek Polacek <polacek@redhat.com>
1433 * call.c (add_builtin_candidate): Don't create a builtin overload
1434 candidate for ++ when type is bool in C++17.
1436 2020-05-18 Marek Polacek <polacek@redhat.com>
1438 * cfns.h: Regenerated.
1440 2020-05-17 Iain Sandoe <iain@sandoe.co.uk>
1442 * coroutines.cc (morph_fn_to_coro): Initialize the gro variable.
1444 2020-05-16 Iain Sandoe <iain@sandoe.co.uk>
1446 * coroutines.cc (finish_co_return_stmt): Implement rules
1447 from [class.copy.elision] /3.
1449 2020-05-16 Patrick Palka <ppalka@redhat.com>
1452 * semantics.c (finish_decltype_type): Call
1453 instantiate_non_dependent_expr_sfinae on the expression.
1455 2020-05-15 Patrick Palka <ppalka@redhat.com>
1459 2020-04-07 Patrick Palka <ppalka@redhat.com>
1462 * typeck2.c (process_init_constructor_array): Propagate
1463 CONSTRUCTOR_PLACEHOLDER_BOUNDARY up from each element initializer to
1464 the array initializer.
1466 2020-05-15 Jason Merrill <jason@redhat.com>
1468 PR c++/93286 - ICE with __is_constructible and variadic template.
1469 * pt.c (tsubst_tree_list): New.
1470 (tsubst, tsubst_copy_and_build): Use it.
1471 * decl2.c (is_late_template_attribute): Handle error_mark_node args.
1473 2020-05-15 Nathan Sidwell <nathan@acm.org>
1475 * pt.c (template_args_equal): Fix thinkos in previous 'cleanup'.
1477 2020-05-14 Jason Merrill <jason@redhat.com>
1480 * pt.c (maybe_instantiate_noexcept): Change clone handling.
1482 2020-05-14 Patrick Palka <ppalka@redhat.com>
1485 * call.c (build_op_call): Pass complain to lookup_fnfields.
1486 (build_special_member_call): Likewise.
1487 * class.c (type_requires_array_cookie): Pass tf_warning_or_error
1489 * cp-tree.h (lookup_fnfields): Add tsubst_flags_t parameter.
1490 * except.c (build_throw): Pass tf_warning_or_error to
1492 * init.c (build_new_1): Pass complain to lookup_fnfields.
1493 * method.c (locate_fn_flags): Likewise.
1494 * name-lookup.c (lookup_name_real_1): Pass tf_warning_or_error
1496 * pt.c (tsubst_baselink): Pass complain to lookup_fnfields.
1497 * search.c (lookup_fnfields): New 'complain' parameter. Pass it
1500 2020-05-14 Nathan Sidwell <nathan@acm.org>
1502 * parser.c (cp_parser_diagnose_invalid_typename): Mention
1503 std=c++20 not 2a, reformat dependent binfo inform loops.
1505 * pt.c (tsubst_template_decl): Reorder and commonize some control
1508 * pt.c (tsubst_friend_function): Simplify control flow.
1510 * pt.c (lookup_template_class_1): Remove unnecessary else by
1511 simply grabbing TYPE_NAME earlier.
1513 * pt.c (push_template_decl_real): Adjust friend pushing logic.
1514 Reinit template type.
1516 * pt.c (build_template_decl): Init DECL_TEMPLATE_RESULT &
1518 (process_partial_specialization): ... not here ...
1519 (push_template_decl_real, add_inherited_template_parms)
1520 (build_deduction_guide): ... or here.
1522 2020-05-14 Jakub Jelinek <jakub@redhat.com>
1524 * cp-gimplify.c (cp_genericize_r): Set cfun->has_omp_target.
1526 2020-05-13 Patrick Palka <ppalka@redhat.com>
1529 * init.c (build_vec_delete_1): Just return error_mark_node if
1530 deallocate_expr is error_mark_node.
1531 (build_delete): Just return error_mark_node if do_delete is
1534 2020-05-13 Patrick Palka <ppalka@redhat.com>
1537 * constraint.cc (tsubst_requires_expr): Produce a new
1538 requires-expression when processing_template_decl, even if
1539 template arguments are not dependent.
1541 2020-05-13 Marek Polacek <polacek@redhat.com>
1544 * decl.c (duplicate_decls): Set DECL_HAS_DEPENDENT_EXPLICIT_SPEC_P.
1546 2020-05-13 Nathan Sidwell <nathan@acm.org>
1548 * pt.c (template_args_equal): Reorder category checking for
1551 * pt.c (perform_typedefs_access_check): Cache expensively
1552 calculated object references.
1553 (check_auto_in_tmpl_args): Just assert we do not get unexpected
1554 nodes, rather than silently do nothing.
1555 (append_type_to_template_for_access): Likewise, cache expensie
1558 * pt.c (canonical_type_parameter): Simplify.
1560 Formatting fixups & some simplifications.
1561 * pt.c (spec_hash_table): New typedef.
1562 (decl_specializations, type_specializations): Use it.
1563 (retrieve_specialization): Likewise.
1564 (register_specialization): Remove unnecessary casts.
1565 (push_template_decl_real): Reformat.
1566 (instantiate_class_template_1): Use more RAII.
1567 (make_argument_pack): Simplify.
1568 (instantiate_template_1): Use gcc_checking_assert for expensive
1570 (instantiate_decl): Likewise.
1571 (resolve_typename_type): Reformat comment.
1572 * semantics.c (struct deferred_access): Remove unnecessary GTY on
1574 (begin_class_definition): Fix formatting.
1576 2020-05-13 Jason Merrill <jason@redhat.com>
1578 * call.c, class.c, constexpr.c, constraint.cc, decl.c, init.c,
1579 lambda.c, lex.c, method.c, name-lookup.c, parser.c, pt.c, tree.c,
1580 typeck2.c: Change cxx2a to cxx20.
1582 2020-05-12 Marek Polacek <polacek@redhat.com>
1585 * parser.c (cp_parser_postfix_expression) <case CPP_OPEN_PAREN>: When
1586 looking for a block-scope function declaration, look through the whole
1587 set, not just the first function in the overload set.
1589 2020-05-12 Jakub Jelinek <jakub@redhat.com>
1592 * pt.c (tsubst_decl): Deal with DECL_OMP_PRIVATIZED_MEMBER for
1595 2020-05-11 Jason Merrill <jason@redhat.com>
1597 Resolve C++20 NB comment CA104
1598 * pt.c (determine_specialization): Compare constraints for
1599 specialization of member template of class instantiation.
1601 2020-05-11 Jason Merrill <jason@redhat.com>
1605 * tree.c (cp_walk_subtrees): Stop at typedefs.
1606 Handle TYPENAME_TYPE here.
1607 * pt.c (find_parameter_packs_r): Not here.
1608 (for_each_template_parm_r): Clear *walk_subtrees.
1609 * decl2.c (min_vis_r): Look through typedefs.
1611 2020-05-11 Jason Merrill <jason@redhat.com>
1613 * call.c (implicit_conversion_error): Split out from...
1614 (perform_implicit_conversion_flags): ...here.
1615 (build_converted_constant_expr_internal): Use it.
1617 2020-05-11 Jason Merrill <jason@redhat.com>
1620 * parser.c (inject_parm_decls): Set current_class_ptr here.
1621 (cp_parser_direct_declarator): And here.
1622 (cp_parser_late_return_type_opt): Not here.
1623 (cp_parser_noexcept_specification_opt): Nor here.
1624 (cp_parser_exception_specification_opt)
1625 (cp_parser_late_noexcept_specifier): Remove unneeded parameters.
1627 2020-05-11 Jason Merrill <jason@redhat.com>
1629 * decl.c (cxx_init_decl_processing): Call declare_weak for
1632 2020-05-11 Jason Merrill <jason@redhat.com>
1634 * pt.c (instantiate_class_template_1): Call tsubst_expr for
1635 STATIC_ASSERT member.
1636 * ptree.c (cxx_print_xnode): Handle STATIC_ASSERT.
1638 2020-05-11 Jason Merrill <jason@redhat.com>
1640 * pt.c (find_parameter_packs_r) [LAMBDA_EXPR]: Remove redundant
1641 walking of capture list.
1643 2020-05-11 Jason Merrill <jason@redhat.com>
1645 * cp-tree.h (LOOKUP_EXPLICIT_TMPL_ARGS): Remove.
1646 * call.c (build_new_function_call): Don't set it.
1647 (build_new_method_call_1): Likewise.
1648 (build_over_call): Check cand->explicit_targs instead.
1650 2020-05-11 Jason Merrill <jason@redhat.com>
1652 * decl.c (compute_array_index_type_loc): Stabilize before building
1655 2020-05-11 Jason Merrill <jason@redhat.com>
1657 * decl.c (grokdeclarator): Adjust deprecated_state here.
1658 (start_decl): Not here.
1660 2020-05-08 Iain Sandoe <iain@sandoe.co.uk>
1663 * coroutines.cc (build_actor_fn): Ensure that bind scopes
1664 are marked as having side-effects where necessary.
1665 (replace_statement_captures): Likewise.
1666 (morph_fn_to_coro): Likewise.
1668 2020-05-08 Nathan Sidwell <nathan@acm.org>
1670 * NEWS: Delete, it is so stale.
1672 * parser.c (cp_lexer_set_source_position_from_token): EOF has a
1675 2020-05-07 Iain Sandoe <iain@sandoe.co.uk>
1679 * coroutines.cc (morph_fn_to_coro): Set unformed outline
1680 functions to error_mark_node. For early error returns suppress
1681 warnings about missing ramp return values. Fix reinstatement
1682 of the function body on pre-existing initial error.
1683 * decl.c (finish_function): Use the normal error path for fails
1684 in the ramp function, do not try to compile the helpers if the
1687 2020-05-07 Marek Polacek <polacek@redhat.com>
1689 PR c++/94590 - Detect long double -> double narrowing.
1690 * typeck2.c (check_narrowing): Detect long double -> double
1691 narrowing even when double and long double have the same
1692 precision. Make it handle conversions to float too.
1694 2020-05-07 Marek Polacek <polacek@redhat.com>
1697 * parser.c (cp_parser_class_specifier_1): Check that the scope is
1698 nested inside current scope before pushing it.
1700 2020-05-07 Marek Polacek <polacek@redhat.com>
1703 * typeck2.c (check_narrowing): Consider T* to bool narrowing
1706 2020-05-07 Marek Polacek <polacek@redhat.com>
1708 * decl.c (grok_op_properties): Fix spelling of non-static.
1709 * typeck.c (build_class_member_access_expr): Likewise.
1711 2020-05-07 Richard Biener <rguenther@suse.de>
1714 * optimize.c (update_cloned_parm): Copy DECL_NOT_GIMPLE_REG_P.
1716 2020-05-06 Marek Polacek <polacek@redhat.com>
1719 * pt.c (tsubst_copy_and_build): Call type_dependent_expression_p_push
1720 instead of uses_template_parms. Move the warning_sentinels after the
1723 2020-05-06 Jakub Jelinek <jakub@redhat.com>
1726 * typeck.c (cp_strict_aliasing_warning): New function.
1727 (cp_build_indirect_ref_1, build_reinterpret_cast_1): Use
1728 it instead of strict_aliasing_warning.
1731 * method.c (defaulted_late_check): Don't call synthesize_method
1732 on constexpr sfk_comparison if it has been called on it already.
1734 2020-05-06 Nathan Sidwell <nathan@acm.org>
1737 * decl.c (grokdeclarator): Don't splice template attributes in
1738 parm context -- they can apply to the parm.
1740 2020-05-05 Iain Sandoe <iain@sandoe.co.uk>
1742 * coroutines.cc: Remove references to n4849 throughout.
1744 2020-05-05 Jason Merrill <jason@redhat.com>
1747 * pt.c (more_specialized_fn): Do consider parms with no deducible
1748 template parameters.
1750 2020-05-05 Jason Merrill <jason@redhat.com>
1753 * constexpr.c (potential_constant_expression_1): In a lambda
1754 function, consider a captured variable directly.
1756 2020-05-05 Iain Sandoe <iain@sandoe.co.uk>
1758 * coroutines.cc (transform_await_wrapper): Check that we have
1759 no unlowered co_yields.
1760 (captures_temporary): Likewise.
1761 (register_awaits): Likewise.
1763 2020-05-05 Nathan Sidwell <nathan@acm.org>
1766 * coroutines.cc (morph_fn_to_coro): Just check for
1768 * pt.c (tsubst_function_decl): Update lambda fn's this_ptr name.
1770 2020-05-05 Marek Polacek <polacek@redhat.com>
1771 Jason Merrill <jason@redhat.com>
1774 * parser.c (cp_parser_postfix_dot_deref_expression): If we have
1775 a type-dependent object of class type, stash it to
1776 parser->context->object_type. If the postfix expression doesn't have
1778 (cp_parser_class_name): Consider object scope too.
1779 (cp_parser_lookup_name): Remove code dealing with the case when
1780 object_type is unknown_type_node.
1782 2020-05-04 Patrick Palka <ppalka@redhat.com>
1785 * cp-gimplify.c (cp_fold) <case CALL_EXPR>: Move some variable
1786 declarations closer to their uses. Copy the CALL_EXPR only
1787 when one of its arguments has changed.
1788 <case TREE_VEC>: Instead of first collecting the folded
1789 arguments into a releasing_vec, just make a copy of the TREE_VEC
1790 as soon as folding changes one of its arguments.
1792 2020-05-04 Iain Sandoe <iain@sandoe.co.uk>
1794 * coroutines.cc (morph_fn_to_coro): Mark the coro.gro variable
1795 as artificial and ignored.
1797 2020-05-04 Nathan Sidwell <nathan@acm.org>
1799 pt.c (process_template_parm): Don't walk the template list twice,
1800 remember the final node instead.
1801 (end_template_parm_list): Refactor. Comment on why we do a pop
1804 PR c++/94827 -- don't save parms in nested requirement
1805 * constraint.cc (tsubst_nested_requirement): TYPE directly holds
1806 notmalized requirement.
1807 (finish_nested_requirement): Don't stash current tpl parms into
1809 (diagnose_nested_requirement): TYPE directly holds notmalized
1812 2020-05-01 Patrick Palka <ppalka@redhat.com>
1815 * cp-tree.h (check_accessibility_of_qualified_id): Add
1816 tsubst_flags_t parameter and change return type to bool.
1817 * parser.c (cp_parser_lookup_name): Pass tf_warning_to_error to
1818 check_accessibility_of_qualified_id.
1819 * pt.c (tsubst_qualified_id): Return error_mark_node if
1820 check_accessibility_of_qualified_id returns false.
1821 * semantics.c (check_accessibility_of_qualified_id): Add
1822 complain parameter. Pass complain instead of
1823 tf_warning_or_error to perform_or_defer_access_check. Return
1824 true unless perform_or_defer_access_check returns false.
1826 2020-05-01 Marek Polacek <polacek@redhat.com>
1829 * typeck2.c (process_init_constructor_record): Return PICFLAG_ERRONEOUS
1830 if an initializer element was erroneous.
1832 2020-05-01 Jason Merrill <jason@redhat.com>
1835 * init.c (get_nsdmi): Don't push_to_top_level for a local class.
1837 2020-05-01 Jason Merrill <jason@redhat.com>
1840 * decl.c (cp_finish_decl): Also clear TREE_READONLY if
1841 -fmerge-all-constants.
1843 2020-05-01 Jason Merrill <jason@redhat.com>
1846 * pt.c (tsubst_decl): Make sure DECL_VALUE_EXPR continues to have
1847 the same type as the variable.
1849 2020-04-30 Jason Merrill <jason@redhat.com>
1850 Nathan Sidwell <nathan@acm.org>
1853 * constraint.cc (map_arguments): If ARGS is null, it's a
1854 self-mapping of parms.
1855 (finish_nested_requirement): Do not pass argified
1856 current_template_parms to normalization.
1857 (tsubst_nested_requirement): Don't assert no template parms.
1859 2020-04-30 Iain Sandoe <iain@sandoe.co.uk>
1862 * coroutines.cc (transform_local_var_uses): Defer walking
1863 the DECL_INITIALs of BIND_EXPR vars until all the frame
1864 allocations have been made.
1866 2020-04-30 Iain Sandoe <iain@sandoe.co.uk>
1869 * coroutines.cc (register_awaits): Update target
1870 expressions for awaitable and suspend handle
1873 2020-04-30 Iain Sandoe <iain@sandoe.co.uk>
1876 * coroutines.cc (build_co_await): Account for variables
1877 with DECL_VALUE_EXPRs.
1878 (captures_temporary): Likewise.
1879 (register_awaits): Likewise.
1881 2020-04-29 Patrick Palka <ppalka@redhat.com>
1884 * pt.c (find_template_parameter_info::parm_list): New field.
1885 (keep_template_parm): Use the new field to build up the
1886 parameter list here instead of ...
1887 (find_template_parameters): ... here. Return ftpi.parm_list.
1889 2020-04-29 Jakub Jelinek <jakub@redhat.com>
1892 * class.c (build_base_field): Set DECL_FIELD_ABI_IGNORED on C++17 empty
1893 base artificial FIELD_DECLs.
1894 (layout_class_type): Set DECL_FIELD_ABI_IGNORED on empty class
1895 field_poverlapping_p FIELD_DECLs.
1897 2020-04-29 Patrick Palka <ppalka@redhat.com>
1900 * constraint.cc (satisfy_declaration_constraints): Use saved_t
1901 instead of t as the key to decl_satisfied_cache.
1904 * error.c (print_requires_expression_info): Print the dependent
1905 form of the parameter list with its template parameter mapping,
1906 rather than printing the substituted form.
1908 2020-04-28 Jason Merrill <jason@redhat.com>
1911 * decl.c (use_eh_spec_block): Check nothrow type after
1913 * pt.c (maybe_instantiate_noexcept): Call synthesize_method for
1914 DECL_MAYBE_DELETED fns here.
1915 * decl2.c (mark_used): Not here.
1916 * method.c (get_defaulted_eh_spec): Reject DECL_MAYBE_DELETED here.
1918 2020-04-28 Iain Sandoe <iain@sandoe.co.uk>
1921 * coroutines.cc (instantiate_coro_traits): Pass a reference to
1922 object type rather than a pointer type for 'this', for method
1924 (struct param_info): Add a field to hold that the parm is a lambda
1926 (morph_fn_to_coro): Check for lambda closure pointers in the
1927 args. Use a reference to *this when building the args list for the
1928 promise allocator lookup.
1930 2020-04-28 Iain Sandoe <iain@sandoe.co.uk>
1933 * coroutines.cc (coro_promise_type_found_p): Do not
1934 exclude non-classes here (this needs to be handled in the
1936 (morph_fn_to_coro): Allow for the case where the coroutine
1939 2020-04-27 Iain Sandoe <iain@sandoe.co.uk>
1942 * coroutines.cc (struct local_var_info): Add fields for static
1943 variables and those with DECL_VALUE_EXPR redirection.
1944 (transform_local_var_uses): Skip past typedefs and static vars
1945 and then account for redirected variables.
1946 (register_local_var_uses): Likewise.
1948 2020-04-27 Jason Merrill <jason@redhat.com>
1952 * decl.c (grokdeclarator): Move dependent attribute to decl.
1953 * decl2.c (splice_template_attributes): No longer static.
1955 2020-04-27 Patrick Palka <ppalka@redhat.com>
1958 * constexpr.c (cxx_eval_call_expression): Don't set new_obj if we're
1959 evaluating the target constructor of a delegating constructor.
1960 (cxx_eval_store_expression): Don't set TREE_READONLY if the LHS of the
1961 INIT_EXPR is '*this'.
1963 2020-04-26 Marek Polacek <polacek@redhat.com>
1966 * call.c (struct conversion): Add copy_init_p.
1967 (standard_conversion): Set copy_init_p in ck_base and ck_rvalue
1968 if FLAGS demands LOOKUP_ONLYCONVERTING.
1969 (convert_like_real) <case ck_base>: If copy_init_p is set, or
1970 LOOKUP_ONLYCONVERTING into FLAGS.
1972 2020-04-26 Iain Sandoe <iain@sandoe.co.uk>
1975 * coroutines.cc (morph_fn_to_coro): Ensure that
1976 unnamed function params have a usable and distinct
1979 2020-04-24 Jason Merrill <jason@redhat.com>
1982 * decl.c (redeclaration_error_message): Reject defaulted comparison
1983 operator that has been previously declared.
1985 2020-04-25 Patrick Palka <ppalka@redhat.com>
1987 * parser.c (cp_parser_diagnose_invalid_type_name): Suggest enabling
1988 concepts if the invalid identifier is 'requires'.
1990 2020-04-25 Jakub Jelinek <jakub@redhat.com>
1993 * semantics.c (finish_call_expr): When looking if all overloads
1994 are noreturn, use STRIP_TEMPLATE to look through TEMPLATE_DECLs.
1996 2020-04-24 Martin Liska <mliska@suse.cz>
1998 * coroutines.cc: Fix compilation error for release checking
1999 where we miss declaration of ‘coro_body_contains_bind_expr_p’.
2001 2020-04-23 Patrick Palka <ppalka@redhat.com>
2003 * tree.c (zero_init_expr_p): Use uses_template_parms instead of
2007 * pt.c (template_class_depth): Walk into the DECL_FRIEND_CONTEXT of a
2008 friend declaration rather than into its CP_DECL_CONTEXT.
2010 2020-04-23 Iain Sandoe <iain@sandoe.co.uk>
2013 * coroutines.cc (await_statement_expander): Simplify cases.
2014 (struct susp_frame_data): Add fields for truth and/or if
2015 cases, rename one field.
2016 (analyze_expression_awaits): New.
2017 (expand_one_truth_if): New.
2018 (add_var_to_bind): New helper.
2019 (coro_build_add_if_not_cond_break): New helper.
2020 (await_statement_walker): Handle conditional expressions,
2021 handle expansion of truth-and/or-if cases.
2022 (bind_expr_find_in_subtree): New, checking-only.
2023 (coro_body_contains_bind_expr_p): New, checking-only.
2024 (morph_fn_to_coro): Ensure that we have a top level bind
2027 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
2029 PR translation/94698
2030 * class.c (check_field_decls): Change "define" to "declare" in
2031 -Weffc++ diagnostics.
2033 2020-04-22 Patrick Palka <ppalka@redhat.com>
2037 * constraint.cc (satisfy_declaration_constraints): If the inherited
2038 constructor points to an instantiation of a constructor template,
2039 remember and use its attached template arguments.
2041 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
2043 PR translation/94698
2044 * class.c (check_field_decls): Change "override" to "define" in
2045 -Weffc++ diagnostics.
2047 2020-04-22 Iain Sandoe <iain@sandoe.co.uk>
2050 * coroutines.cc (struct param_info): Add a field to note that
2051 the param is 'this'.
2052 (morph_fn_to_coro): Convert this to a reference before using it
2053 in the promise parameter preview.
2055 2020-04-22 Jason Merrill <jason@redhat.com>
2058 * pt.c (register_parameter_specializations): If the instantiation is
2059 still a parameter pack, don't wrap it in a NONTYPE_ARGUMENT_PACK.
2060 (tsubst_pack_expansion, tsubst_expr): Adjust.
2062 2020-04-22 Martin Sebor <msebor@redhat.com>
2063 Jason Merrill <jason@redhat.com>
2066 * decl.c (reshape_init_array_1): Avoid stripping redundant trailing
2067 zero initializers...
2068 * mangle.c (write_expression): ...and handle them here even for
2069 pointers to members by calling zero_init_expr_p.
2070 * cp-tree.h (zero_init_expr_p): Declare.
2071 * tree.c (zero_init_expr_p): Define.
2072 (type_initializer_zero_p): Remove.
2073 * pt.c (tparm_obj_values): New hash_map.
2074 (get_template_parm_object): Store to it.
2075 (tparm_object_argument): New.
2077 2020-04-22 Patrick Palka <ppalka@redhat.com>
2080 * constraint.cc (diagnose_valid_expression): Check convert_to_void here
2081 as well as in tsubst_valid_expression_requirement.
2083 2020-04-21 Patrick Palka <ppalka@redhat.com>
2086 * constraint.cc (satisfy_declaration_constraints): Don't strip the
2087 inherited constructor if it already has template information.
2090 * pt.c (any_template_parm_r) <case IDENTIFIER_NODE>: New case. If this
2091 is a conversion operator, visit its TREE_TYPE.
2093 2020-04-21 Nathan Sidwell <nathan@acm.org>
2095 * pt.c (tsubst_copy_and_build) [POINTER_PLUS_EXPR]: Check for
2098 2020-04-21 Iain Sandoe <iain@sandoe.co.uk>
2101 * coroutines.cc (morph_fn_to_coro): Simplify return
2104 2020-04-17 Marek Polacek <polacek@redhat.com>
2107 * constexpr.c (cxx_eval_outermost_constant_expr): Return when T is
2108 a BRACE_ENCLOSED_INITIALIZER_P.
2109 (is_nondependent_constant_expression): Don't check
2110 BRACE_ENCLOSED_INITIALIZER_P.
2111 (is_nondependent_static_init_expression): Likewise.
2113 2020-04-20 Patrick Palka <ppalka@redhat.com>
2116 * cp-tree.h (lss_policy::lss_nop): New enumerator.
2117 * pt.c (local_specialization_stack::local_specialization_stack): Handle
2119 (local_specialization_stack::~local_specialization_stack): Likewise.
2120 (tsubst_pack_expansion): Use a local_specialization_stack instead of
2121 manually saving and restoring local_specializations. Conditionally
2122 replace local_specializations sooner, before the handling of the
2123 unsubstituted_packs case.
2125 2020-04-20 Marek Polacek <polacek@redhat.com>
2127 PR c++/94505 - bogus -Wparentheses warning with fold-expression.
2128 * pt.c (fold_expression): Add warning_sentinel for -Wparentheses
2129 before calling build_x_binary_op.
2131 2020-04-20 Marek Polacek <polacek@redhat.com>
2133 * coroutines.cc (captures_temporary): Don't assign the result of
2134 STRIP_NOPS to the same variable.
2136 2020-04-20 Nathan Sidwell <nathan@acm.org>
2138 PR c++/94454 - tpl-tpl-parms are not canonicalizable types
2139 * pt.c (canonical_type_parameter): Assert not a tpl-tpl-parm.
2140 (process_template_parm): tpl-tpl-parms are structural.
2141 (rewrite_template_parm): Propagate structuralness.
2143 PR c++/94454 - Expr pack expansion equality
2144 * tree.c (cp_tree_equal) [TEMPLATE_ID_EXPR, default]: Refactor.
2145 [EXPR_PACK_EXPANSION]: Add.
2147 PR c++/94454 Template Argument Hashing
2148 * pt.c (iterative_hash_template_arg): Strip nodes as
2149 template_args_equal does.
2150 [ARGUMENT_PACK_SELECT, TREE_VEC, CONSTRUCTOR]: Refactor.
2151 [node_class:TEMPLATE_TEMPLATE_PARM]: Hash by level & index.
2152 [node_class:default]: Refactor.
2154 2020-04-18 Patrick Palka <ppalka@redhat.com>
2157 * tree.c (cp_tree_equal) <case PARM_DECL>: Ignore
2158 comparing_specializations if the parameters' contexts are identical.
2161 * pt.c (splice_late_return_type): Propagate cv-qualifiers and
2162 PLACEHOLDER_TYPE_CONSTRAINTS from the original auto node to the new one.
2164 2020-04-17 Patrick Palka <ppalka@redhat.com>
2167 * lambda.c (lambda_capture_field_type): Avoid doing auto deduction if
2168 the explicit initializer has parameter packs.
2171 * parser.c (cp_parser_check_template_parameters): Before issuing a hard
2172 error, first try simulating an error instead.
2174 2020-04-17 Jakub Jelinek <jakub@redhat.com>
2177 * call.c (build_conditional_expr_1): Remove redundant assignment to
2180 2020-04-16 Patrick Palka <ppalka@redhat.com>
2183 * cvt.c (ocp_convert): If the result of scalar_constant_value is
2184 erroneous, ignore it and use the original expression.
2186 2020-04-16 Jakub Jelinek <jakub@redhat.com>
2189 * parser.c (cp_parser_simple_declaration): Fix up a pasto in
2192 2020-04-15 Jakub Jelinek <jakub@redhat.com>
2195 * parser.c (cp_parser_pragma) <case PRAGMA_OMP_REQUIRES>: Reject
2196 requires directive when not at file or namespace scope.
2198 2020-04-14 Iain Sandoe <iain@sandoe.co.uk>
2201 * coroutines.cc (build_actor_fn): Check that the target can
2202 support the resume tailcall before mandating it.
2204 2020-04-14 Patrick Palka <ppalka@redhat.com>
2207 * cxx-pretty-print.c (cxx_pretty_printer:simple_type_specifier)
2208 <case DECLTYPE_TYPE>: Handle DECLTYPE_TYPE here instead of ...
2209 (pp_cxx_type_specifier_seq) <case DECLTYPE_TYPE>: ... here.
2210 (cxx_pretty_printer::direct_abstract_declarator) <case DECLTYPE_TYPE>:
2214 * constexpr.c (replace_result_decl_data): New struct.
2215 (replace_result_decl_data_r): New function.
2216 (replace_result_decl): New function.
2217 (cxx_eval_call_expression): Use it.
2218 * tree.c (build_aggr_init_expr): Set the location of the AGGR_INIT_EXPR
2219 to that of its initializer.
2221 2020-04-13 Marek Polacek <polacek@redhat.com>
2224 * name-lookup.c (check_local_shadow): Add an inform call.
2226 2020-04-13 Patrick Palka <ppalka@redhat.com>
2229 * error.c (dump_scope): Pass TFF_NO_FUNCTION_ARGUMENTS to
2230 dump_function_decl when printing a function template instantiation as a
2234 * constexpr.c (get_or_insert_ctor_field): Set default value of parameter
2236 (cxx_eval_bare_aggregate): Use get_or_insert_ctor_field instead of
2237 assuming the the next index belongs at the end of the new CONSTRUCTOR.
2238 (cxx_eval_store_expression): Revert PR c++/78572 fix.
2240 2020-04-13 Nathan Sidwell <nathan@acm.org>
2242 PR c++/94426 lambdas with internal linkage are different to no-linkage
2243 * decl2.c (determine_visibility): A lambda's visibility is
2244 affected by its extra scope.
2245 * pt.c (instantiate_decl): Determine var's visibility before
2246 instantiating its initializer.
2247 * tree.c (no_linkage_check): Revert code looking at visibility of
2248 lambda's extra scope.
2250 2020-04-10 Iain Sandoe <iain@sandoe.co.uk>
2253 * coroutines.cc (co_await_expander): Remove.
2254 (expand_one_await_expression): New.
2255 (process_one_statement): New.
2256 (await_statement_expander): New.
2257 (build_actor_fn): Revise to use per-statement expander.
2258 (struct susp_frame_data): Reorder and comment.
2259 (register_awaits): Factor code.
2260 (replace_statement_captures): New, factored from...
2261 (maybe_promote_captured_temps):.. here.
2262 (await_statement_walker): Revise to process per statement.
2263 (morph_fn_to_coro): Use revised susp_frame_data layout.
2265 2020-04-10 Marek Polacek <polacek@redhat.com>
2268 * method.c (constructible_expr): In C++20, try using parenthesized
2269 initialization of aggregates to determine the result of
2272 2020-04-10 Bin Cheng <bin.cheng@linux.alibaba.com>
2274 * coroutines.cc (co_await_expander): Simplify.
2276 2020-04-09 Jason Merrill <jason@redhat.com>
2279 * constexpr.c (cxx_eval_constant_expression) [VAR_DECL]: Look at
2280 ctx->object and ctx->global->values first.
2282 2020-04-09 Marek Polacek <polacek@redhat.com>
2285 * call.c (initialize_reference): If the reference binding failed, maybe
2286 try initializing from { }.
2287 * decl.c (grok_reference_init): For T& t(e), set
2288 LOOKUP_AGGREGATE_PAREN_INIT but don't build up a constructor yet.
2290 2020-04-08 Iain Sandoe <iain@sandoe.co.uk>
2291 Jun Ma <JunMa@linux.alibaba.com>
2293 * coroutines.cc (maybe_promote_captured_temps): Add a cleanup
2294 expression, if needed, to any call from which we promoted
2295 temporaries captured by reference.
2297 2020-04-08 Marek Polacek <polacek@redhat.com>
2299 PR c++/94507 - ICE-on-invalid with lambda template.
2300 * pt.c (tsubst_lambda_expr): Cope when tsubst_template_decl or
2301 tsubst_function_decl returns error_mark_node.
2303 2020-04-08 Martin Liska <mliska@suse.cz>
2306 * decl.c (duplicate_decls): Duplicate also DECL_IS_REPLACEABLE_OPERATOR.
2307 (cxx_init_decl_processing): Mark replaceable all implicitly defined
2310 2020-04-08 Patrick Palka <ppalka@redhat.com>
2312 Core issues 1001 and 1322
2314 * pt.c (rebuild_function_or_method_type): Split function out from ...
2315 (tsubst_function_type): ... here.
2316 (maybe_rebuild_function_decl_type): New function.
2317 (tsubst_function_decl): Use it.
2319 2020-04-08 Jakub Jelinek <jakub@redhat.com>
2322 * decl.c (begin_destructor_body): For CLASSTYPE_VBASECLASSES class
2323 dtors, if CLASSTYPE_PRIMARY_BINFO is non-NULL, but not BINFO_VIRTUAL_P,
2324 look at CLASSTYPE_PRIMARY_BINFO of its BINFO_TYPE if it is not
2325 BINFO_VIRTUAL_P, and so on.
2327 2020-04-08 Marek Polacek <polacek@redhat.com>
2329 PR c++/94478 - ICE with defaulted comparison operator
2330 * method.c (early_check_defaulted_comparison): Give an error when the
2333 2020-04-08 Tobias Burnus <tobias@codesourcery.com>
2336 * paser.c (cp_parser_oacc_declare): Add check that variables
2337 are declared in the same scope as the directive.
2339 2020-04-07 Jason Merrill <jason@redhat.com>
2342 * parser.c (cp_parser_requires_expression): Use tentative_firewall.
2345 * parser.c (cp_parser_placeholder_type_specifier): Use
2348 2020-04-07 Iain Sandoe <iain@sandoe.co.uk>
2350 * coroutines.cc (maybe_promote_captured_temps): Ensure that
2351 reference capture placeholder vars are properly declared.
2353 2020-04-07 Patrick Palka <ppalka@redhat.com>
2356 * tree.c (replace_placeholders): Look through all handled components,
2357 not just COMPONENT_REFs.
2358 * typeck2.c (process_init_constructor_array): Propagate
2359 CONSTRUCTOR_PLACEHOLDER_BOUNDARY up from each element initializer to
2360 the array initializer.
2362 2020-04-07 Jakub Jelinek <jakub@redhat.com>
2365 * parser.c (cp_parser_omp_parallel): Set OMP_PARALLEL_COMBINED
2366 if cp_parser_omp_master succeeded.
2368 2020-04-06 Jason Merrill <jason@redhat.com>
2371 * decl.c (duplicate_decls): Fix handling of DECL_HIDDEN_FRIEND_P.
2373 2020-04-04 Marek Polacek <polacek@redhat.com>
2374 Jason Merrill <jason@redhat.com>
2376 PR c++/94155 - crash in gimplifier with paren init of aggregates.
2377 * init.c (build_vec_init): Fill in indexes.
2379 2020-04-04 Jason Merrill <jason@redhat.com>
2382 * mangle.c (write_expression): Skip IMPLICIT_CONV_EXPR.
2384 2020-04-04 Patrick Palka <ppalka@redhat.com>
2388 * constexpr.c (struct constexpr_ctx): New field 'parent'.
2389 (cxx_eval_bare_aggregate): Propagate CONSTRUCTOR_PLACEHOLDER_BOUNDARY
2390 flag from the original constructor to the reduced constructor.
2391 (lookup_placeholder): Prefer to return the outermost matching object
2392 by recursively calling lookup_placeholder on the 'parent' context,
2393 but don't cross CONSTRUCTOR_PLACEHOLDER_BOUNDARY constructors.
2394 (cxx_eval_constant_expression): Link the 'ctx' context to the 'new_ctx'
2395 context via 'new_ctx.parent' when being expanded without an explicit
2396 target. Don't call replace_placeholders.
2397 (cxx_eval_outermost_constant_expr): Initialize 'ctx.parent' to NULL.
2401 * constexpr.c (get_or_insert_ctor_field): Split out (while adding
2402 support for VECTOR_TYPEs, and optimizations for the common case)
2404 (cxx_eval_store_expression): ... here. Rename local variable
2405 'changed_active_union_member_p' to 'activated_union_member_p'. Record
2406 the sequence of indexes into 'indexes' that yields the subobject we're
2407 assigning to. Record the integer offsets of the constructor indexes
2408 we're assigning through into 'index_pos_hints'. After evaluating the
2409 initializer of the store expression, recompute 'valp' using 'indexes'
2410 and using 'index_pos_hints' as hints.
2411 (cxx_eval_bare_aggregate): Tweak comments. Use get_or_insert_ctor_field
2412 to recompute the constructor_elt pointer we're assigning through after
2413 evaluating each initializer.
2415 2020-04-04 Jason Merrill <jason@redhat.com>
2418 * constraint.cc (tsubst_valid_expression_requirement): Call
2421 2020-04-04 Jason Merrill <jason@redhat.com>
2424 * constexpr.c (maybe_constant_value): Use break_out_target_exprs.
2425 * expr.c (mark_use) [VIEW_CONVERT_EXPR]: Don't wrap a TARGET_EXPR in
2428 2020-04-04 Jakub Jelinek <jakub@redhat.com>
2431 * parser.c (cp_parser_omp_for_loop): Use
2432 protected_set_expr_location_if_unset.
2433 * cp-gimplify.c (genericize_if_stmt, genericize_cp_loop): Likewise.
2436 * pt.c (tsubst_expr) <case OMP_MASTER>: Clear
2437 omp_parallel_combined_clauses.
2439 2020-04-03 Jason Merrill <jason@redhat.com>
2442 * pt.c (complex_pack_expansion_r): New.
2443 (complex_alias_template_p): Use it.
2445 2020-03-31 Jason Merrill <jason@redhat.com>
2448 * constexpr.c (cxx_eval_constant_expression) [TARGET_EXPR]: Call
2449 replace_placeholders.
2450 * typeck2.c (store_init_value): Fix arguments to
2451 fold_non_dependent_expr.
2453 2020-03-31 Jason Merrill <jason@redhat.com>
2455 * constexpr.c (cxx_eval_constant_expression) [TARGET_EXPR]: Use
2458 2020-03-30 Jason Merrill <jason@redhat.com>
2461 * tree.c (cp_tree_equal) [CALL_EXPR]: Compare KOENIG_LOOKUP_P.
2462 (called_fns_equal): Check DECL_CONTEXT.
2464 2020-03-30 Jakub Jelinek <jakub@redhat.com>
2467 * semantics.c (add_stmt): Only set STMT_IS_FULL_EXPR_P on trees with
2468 STATEMENT_CODE_P code.
2470 2020-03-28 Patrick Palka <ppalka@redhat.com>
2473 * parser.c (cp_parser_requires_clause_opt): Diagnose and recover from
2474 "requires {" when "requires requires {" was probably intended.
2477 * constraint.cc (tsubst_compound_requirement): Always suppress errors
2478 from type_deducible_p and expression_convertible_p, as they're not
2479 substitution errors.
2480 (diagnose_atomic_constraint) <case INTEGER_CST>: Remove this case so
2481 that we diagnose INTEGER_CST expressions of non-bool type via the
2483 * cp-gimplify.c (cp_genericize_r) <case REQUIRES_EXPR>: New case.
2484 * parser.c (cp_parser_requires_expression): Always parse the requirement
2485 body as if we're processing a template, by temporarily incrementing
2486 processing_template_decl. Afterwards, if we're not actually in a
2487 template context, perform semantic processing to diagnose any invalid
2488 types and expressions.
2489 * pt.c (tsubst_copy_and_build) <case REQUIRES_EXPR>: Remove dead code.
2490 * semantics.c (finish_static_assert): Explain an assertion failure
2491 when the condition is a REQUIRES_EXPR like we do when it is a concept
2494 * constraint.cc (diagnose_compound_requirement): When diagnosing a
2495 compound requirement, maybe replay the satisfaction failure, subject to
2496 the current diagnosis depth.
2498 * constraint.cc (finish_constraint_binary_op): Set the location of EXPR
2499 as well as its range, because build_x_binary_op doesn't always do so.
2500 (current_constraint_diagnosis_depth): New.
2501 (concepts_diagnostics_max_depth_exceeded_p): New.
2502 (collect_operands_of_disjunction): New.
2503 (satisfy_disjunction): When diagnosing a satisfaction failure, maybe
2504 replay each branch of the disjunction, subject to the current diagnosis
2506 (diagnose_valid_expression): When diagnosing a satisfaction failure,
2507 maybe replay the substitution error, subject to the current diagnosis
2509 (diagnose_valid_type): Likewise.
2510 (diagnose_nested_requiremnet): Likewise.
2511 (diagnosing_failed_constraint::diagnosing_failed_constraint): Increment
2512 current_constraint_diagnosis_depth when diagnosing.
2513 (diagnosing_failed_constraint::~diagnosing_failed_constraint): Decrement
2514 current_constraint_diagnosis_depth when diagnosing.
2515 (diagnosing_failed_constraint::replay_errors_p): New static member
2517 (diagnose_constraints): Don't diagnose if concepts_diagnostics_max_depth
2518 is 0. Emit a one-off note to increase -fconcepts-diagnostics-depth if
2519 the limit was exceeded.
2520 * cp-tree.h (diagnosing_failed_constraint::replay_errors_p): Declare.
2522 2020-03-27 Nathan Sidwell <nathan@acm.org>
2525 * name-lookup.c (do_pushdecl): Look through cleanp levels.
2527 2020-03-27 Martin Sebor <msebor@redhat.com>
2532 * cp-tree.h (most_specialized_partial_spec): Declare.
2533 * parser.c (cp_parser_elaborated_type_specifier): Distinguish alias
2535 (specialization_of): New function.
2536 (cp_parser_check_class_key): Move code...
2537 (class_decl_loc_t::add): ...to here. Add parameters. Avoid issuing
2538 -Wredundant-tags on first-time declarations in other declarators.
2539 Correct handling of template specializations.
2540 (class_decl_loc_t::diag_mismatched_tags): Also expect to be called
2541 when -Wredundant-tags is enabled. Use primary template or partial
2542 specialization as the guide for uses of implicit instantiations.
2543 * pt.c (most_specialized_partial_spec): Declare extern.
2545 2020-03-27 Nathan Sidwell <nathan@acm.org>
2548 * name-lookup.c (push_namespace): Triage ambiguous lookups that
2551 2020-03-27 Jakub Jelinek <jakub@redhat.com>
2554 * call.c (set_flags_from_callee): Don't update
2555 cp_function_chain->can_throw or current_function_returns_abnormally
2556 if cp_unevaluated_operand.
2559 * cvt.c (ocp_convert): Handle COMPOUND_EXPR by recursion on the second
2560 operand and creating a new COMPOUND_EXPR if anything changed.
2562 2020-03-26 Marek Polacek <polacek@redhat.com>
2564 PR c++/94336 - template keyword accepted before destructor names.
2565 * parser.c (cp_parser_unqualified_id): Give an error when 'template'
2566 is followed by a destructor name.
2568 2020-03-27 Patrick Palka <ppalka@redhat.com>
2570 * decl.c (compute_array_index_type_loc): Remove redundant
2571 type_dependent_expression_p check that is subsumed by
2572 value_dependent_expression_p.
2573 * decl2.c (is_late_template_attribute): Likewise.
2574 * pt.c (uses_template_parms): Likewise.
2575 (dependent_template_arg_p): Likewise.
2577 2020-03-26 Marek Polacek <polacek@redhat.com>
2580 PR c++/94057 - template keyword in a typename-specifier.
2581 * parser.c (check_template_keyword_in_nested_name_spec): New.
2582 (cp_parser_nested_name_specifier_opt): Implement DR1710, optional
2583 'template'. Call check_template_keyword_in_nested_name_spec.
2584 (cp_parser_simple_type_specifier): Assume that a <
2585 following a qualified-id in a typename-specifier begins
2586 a template argument list.
2588 2020-03-26 Iain Sandoe <iain@sandoe.co.uk>
2590 * coroutines.cc (coro_init_identifiers): Initialize an identifier
2591 for the cororoutine handle 'address' method name.
2592 (struct coro_aw_data): Add fields to cover the continuations.
2593 (co_await_expander): Determine the kind of await_suspend in use.
2594 If we have the case that returns a continuation handle, then save
2595 this and make the target for 'scope exit without cleanup' be the
2596 continuation resume label.
2597 (expand_co_awaits): Remove.
2598 (struct suspend_point_info): Remove fields that kept the returned
2599 await_suspend handle type.
2600 (transform_await_expr): Remove code tracking continuation handles.
2601 (build_actor_fn): Add the continuation handle as an actor-function
2602 scope var. Build the symmetric transfer continuation point. Call
2603 the tree walk for co_await expansion directly, rather than via a
2604 trivial shim function.
2605 (register_await_info): Remove fields tracking continuation handles.
2606 (get_await_suspend_return_type): Remove.
2607 (register_awaits): Remove code tracking continuation handles.
2608 (morph_fn_to_coro): Remove code tracking continuation handles.
2610 2020-03-26 Iain Sandoe <iain@sandoe.co.uk>
2612 * coroutines.cc (co_await_expander): If we are expanding the
2613 initial await expression, set a boolean flag to show that we
2614 have now reached the initial await_resume() method call.
2615 (expand_co_awaits): Handle the 'initial await resume called' flag.
2616 (build_actor_fn): Insert the initial await expression into the
2617 start of the user-authored function-body. Handle the 'initial await
2618 resume called' flag.
2619 (morph_fn_to_coro): Initialise the 'initial await resume called'
2620 flag. Modify the unhandled exception catch clause to recognise
2621 exceptions that occur before the initial await_resume() and re-
2624 2020-03-26 Jakub Jelinek <jakub@redhat.com>
2627 * class.c (user_provided_p): Use STRIP_TEMPLATE instead of returning
2628 true for all TEMPLATE_DECLs.
2631 * cp-gimplify.c (cp_genericize_r): Handle STATEMENT_LIST.
2633 2020-03-25 Patrick Palka <ppalka@redhat.com>
2636 * parser.c (cp_parser_selection_statement) <case RID_IF>: Invalidate the
2637 current condition chain when the if-statement has a non-empty
2640 2020-03-25 Iain Sandoe <iain@sandoe.co.uk>
2643 * coroutines.cc (captures_temporary): Fix a missing dereference.
2645 2020-03-24 Marek Polacek <polacek@redhat.com>
2647 PR c++/94190 - wrong no post-decrement operator error in template.
2648 * call.c (convert_like_real): Use convert_from_reference on the result.
2650 2020-03-24 Jason Merrill <jason@redhat.com>
2653 * constraint.cc (constraint_satisfaction_value): Repeat noisily on
2655 (tsubst_nested_requirement): Likewise.
2656 (get_constraint_error_location): Allow missing context.
2657 (diagnose_atomic_constraint): Diagnose non-bool constraint here.
2658 (satisfy_atom): Not here. Only diagnose non-constant when noisy.
2660 2020-03-24 Jason Merrill <jason@redhat.com>
2662 * pt.c (any_template_parm_r): Look into the type of a non-type
2665 2020-03-24 Jason Merrill <jason@redhat.com>
2667 * cp-tree.h (cp_expr): When constructing from an expr and a
2668 location, call protected_set_expr_location.
2670 2020-03-23 Patrick Palka <ppalka@redhat.com>
2673 * except.c (maybe_noexcept_warning): Add TODO.
2674 * method.c (walk_field_subobs): Pass tf_none to expr_noexcept_p.
2676 2020-03-23 nathans <nathan@acm.org>
2679 * tree.c (cp_tree_equal) [SIZEOF_EXPR]: Detect argument pack
2682 2020-03-21 Patrick Palka <ppalka@redhat.com>
2685 * constexpr.c (reduced_constant_expression_p) [CONSTRUCTOR]: Properly
2686 handle unions without an initializer.
2687 (cxx_eval_component_reference): Emit a different diagnostic when the
2688 constructor element corresponding to a union member is NULL.
2689 (cxx_eval_bare_aggregate): When constructing a union, always set the
2690 active union member before evaluating the initializer. Relax assertion
2691 that verifies the index of the constructor element we're initializing
2692 hasn't been changed.
2693 (cxx_eval_store_expression): Diagnose changing the active union member
2694 while the union is in the process of being initialized. After setting
2695 an active union member, clear CONSTRUCTOR_NO_CLEARING on the underlying
2697 (cxx_eval_constant_expression) [PLACEHOLDER_EXPR]: Don't re-reduce a
2698 CONSTRUCTOR returned by lookup_placeholder.
2700 2020-03-20 Patrick Palka <ppalka@redhat.com>
2702 * cxx-pretty-print.c (pp_cxx_parameter_mapping): Make extern. Move
2703 the "[with ]" bits to here from ...
2704 (pp_cxx_atomic_constraint): ... here.
2705 * cxx-pretty-print.h (pp_cxx_parameter_mapping): Declare.
2706 * error.c (rebuild_concept_check): Delete.
2707 (print_concept_check_info): Print the dependent form of the constraint and the
2708 preferably substituted parameter mapping alongside it.
2710 2020-03-19 Jason Merrill <jason@redhat.com>
2713 * cp-gimplify.c (simple_empty_class_p): Look through
2714 SIMPLE_TARGET_EXPR_P.
2715 (cp_gimplify_expr) [MODIFY_EXPR]: Likewise.
2716 [RETURN_EXPR]: Avoid producing 'return *retval;'.
2717 * call.c (build_call_a): Strip TARGET_EXPR from empty class arg.
2718 * cp-tree.h (SIMPLE_TARGET_EXPR_P): Check that TARGET_EXPR_INITIAL
2721 2020-03-19 Jakub Jelinek <jakub@redhat.com>
2724 * parser.c (cp_parser_omp_var_list_no_open): Call process_outer_var_ref
2725 on outer_automatic_var_p decls.
2726 * cp-gimplify.c (cxx_omp_disregard_value_expr): Return true also for
2727 capture proxy decls.
2729 2020-03-18 Nathan Sidwell <nathan@acm.org>
2731 PR c++/94147 - mangling of lambdas assigned to globals
2732 * parser.c (cp_parser_init_declarator): Namespace-scope variables
2733 provide a lambda scope.
2734 * tree.c (no_linkage_check): Lambdas with a variable for extra
2735 scope have a linkage from the variable.
2737 2020-03-18 Jakub Jelinek <jakub@redhat.com>
2739 * constraint.cc (resolve_function_concept_check, subsumes_constraints,
2740 strictly_subsumes): Fix up duplicated word issue in a comment.
2741 * coroutines.cc (build_init_or_final_await, captures_temporary):
2743 * logic.cc (dnf_size_r, cnf_size_r): Likewise.
2744 * pt.c (append_type_to_template_for_access_check): Likewise.
2747 * decl.c (grokfndecl): Restore old diagnostics about deduction
2748 guide declared in different scope if in_namespace is NULL_TREE.
2750 2020-03-17 Jakub Jelinek <jakub@redhat.com>
2753 * parser.c (cp_parser_enum_specifier): Use temp_override for
2754 parser->colon_corrects_to_scope_p, replace goto out with return.
2755 If scoped enum or enum with underlying type is not followed by
2756 { or ;, call cp_parser_commit_to_tentative_parse before calling
2757 cp_parser_error and make sure to return error_mark_node instead of
2758 NULL_TREE. Formatting fixes.
2760 2020-03-17 Ville Voutilainen <ville.voutilainen@gmail.com>
2763 * method.c (assignable_expr): Use cp_unevaluated.
2764 (is_xible_helper): Push a non-deferred access check for
2765 the stub objects created by assignable_expr and constructible_expr.
2767 2020-03-17 Jakub Jelinek <jakub@redhat.com>
2769 * pt.c (tsubst): Fix up duplicated word issue in a diagnostic message.
2770 (lookup_template_class_1, tsubst_expr): Fix up duplicated word issue
2772 * parser.c (cp_parser_statement, cp_parser_linkage_specification,
2773 cp_parser_placeholder_type_specifier,
2774 cp_parser_constraint_requires_parens): Likewise.
2775 * name-lookup.c (suggest_alternative_in_explicit_scope): Likewise.
2777 2020-03-15 Iain Sandoe <iain@sandoe.co.uk>
2779 * coroutines.cc (co_await_expander): Fix indentation.
2781 2020-03-14 Jason Merrill <jason@redhat.com>
2784 * pt.c (process_partial_specialization): Error rather than crash on
2785 extra pack expansion.
2787 2020-03-14 Jason Merrill <jason@redhat.com>
2790 * pt.c (find_parameter_packs_r): [DECL_EXPR]: Walk
2791 DECL_ORIGINAL_TYPE of a typedef.
2793 2020-03-14 Jason Merrill <jason@redhat.com>
2796 * pt.c (build_deduction_guide): Clear cp_unevaluated_operand for
2797 substituting DECL_ARGUMENTS.
2799 2020-03-14 Jakub Jelinek <jakub@redhat.com>
2801 * logic.cc (formula::formula): Change "a an" to "an" in a comment.
2802 * parser.c (cp_debug_parser): Change "a an" to "an" in a string
2805 2020-03-13 Patrick Palka <ppalka@redhat.com>
2808 * call.c (build_over_call): Use a warning_sentinel to disable
2809 warn_deprecated_decl before calling build_addr_func.
2811 2020-03-12 Jakub Jelinek <jakub@redhat.com>
2814 * decl.c (reshape_init_array_1): Don't unshare constructor if there
2815 aren't any trailing zero elts, otherwise only unshare the first
2818 2020-03-11 Jason Merrill <jason@redhat.com>
2821 * constraint.cc (tsubst_parameter_mapping): Canonicalize type
2824 2020-03-11 Marek Polacek <polacek@redhat.com>
2825 Jason Merrill <jason@redhat.com>
2827 PR c++/94074 - wrong modifying const object error for COMPONENT_REF.
2828 * constexpr.c (cref_has_const_field): New function.
2829 (modifying_const_object_p): Consider a COMPONENT_REF
2830 const only if any of its fields are const.
2831 (cxx_eval_store_expression): Mark a CONSTRUCTOR of a const type
2832 as readonly after its initialization has been done.
2834 2020-03-10 Marek Polacek <polacek@redhat.com>
2836 PR c++/94124 - wrong conversion error with non-viable overload.
2837 * decl.c (reshape_init_array_1): Unshare a constructor if we
2838 stripped trailing zero-initializers.
2840 2020-03-10 Jason Merrill <jason@redhat.com>
2843 * pt.c (maybe_instantiate_noexcept): Always update clones.
2845 2020-03-10 Jason Merrill <jason@redhat.com>
2848 * pt.c (maybe_aggr_guide): Check BRACE_ENCLOSED_INITIALIZER_P.
2850 2020-03-10 Jason Merrill <jason@redhat.com>
2856 * cp-gimplify.c (cp_gimplify_init_expr): Partially revert patch for
2857 66139: Don't split_nonconstant_init. Remove pre_p parameter.
2859 2020-03-09 Marek Polacek <polacek@redhat.com>
2861 PR c++/92031 - bogus taking address of rvalue error.
2862 PR c++/91465 - ICE with template codes in check_narrowing.
2863 PR c++/93870 - wrong error when converting template non-type arg.
2864 PR c++/94068 - ICE with template codes in check_narrowing.
2865 * call.c (convert_like_real): Return IMPLICIT_CONV_EXPR
2866 in a template when not ck_identity and we're dealing with a class.
2867 (convert_like_real) <case ck_ref_bind>: Return IMPLICIT_CONV_EXPR
2868 in a template if we need a temporary.
2869 * decl.c (compute_array_index_type_loc): Remove
2870 instantiate_non_dependent_expr_sfinae call. Call
2871 fold_non_dependent_expr instead of maybe_constant_value.
2872 (build_explicit_specifier): Don't instantiate or create a sentinel
2873 before converting the expression.
2874 * except.c (build_noexcept_spec): Likewise.
2875 * pt.c (convert_nontype_argument): Don't build IMPLICIT_CONV_EXPR.
2876 Set IMPLICIT_CONV_EXPR_NONTYPE_ARG if that's what
2877 build_converted_constant_expr returned.
2878 * typeck2.c (check_narrowing): Call fold_non_dependent_expr instead
2879 of maybe_constant_value.
2881 2020-03-09 Jakub Jelinek <jakub@redhat.com>
2885 2019-10-11 Paolo Carlini <paolo.carlini@oracle.com>
2887 * constexpr.c (cxx_eval_constant_expression): Do not handle
2888 RROTATE_EXPR and LROTATE_EXPR.
2890 2020-03-09 Marek Polacek <polacek@redhat.com>
2892 PR c++/94050 - ABI issue with alignas on armv7hl.
2893 * class.c (layout_class_type): Don't replace a class's
2894 CLASSTYPE_AS_BASE if their TYPE_USER_ALIGN don't match.
2896 2020-03-09 Bin Cheng <bin.cheng@linux.alibaba.com>
2898 * coroutines.cc (build_actor_fn): Factor out code inserting the
2899 default return_void call to...
2900 (morph_fn_to_coro): ...here, also hoist local var declarations.
2902 2020-03-08 Patrick Palka <ppalka@redhat.com>
2905 * call.c (convert_like_real): Check complain before emitting an error
2906 about binding a bit-field to a reference.
2908 * cxx-pretty-print.c (cxx_pretty_printer::simple_type_specifier)
2909 [TYPENAME_TYPE]: Print the TYPENAME_TYPE_FULLNAME instead of the
2912 2020-03-06 Nathan Sidwell <nathan@acm.org>
2915 * mangle.c (find_substitution): Don't call same_type_p on template
2916 args that cannot match.
2918 2020-03-04 Martin Sebor <msebor@redhat.com>
2921 * tree.c (type_initializer_zero_p): Fail for structs initialized
2924 2020-03-04 Jason Merrill <jason@redhat.com>
2927 * init.c (perform_member_init): Don't do aggregate initialization of
2929 * constexpr.c (cx_check_missing_mem_inits): Don't enforce
2930 initialization of empty field.
2932 2020-03-04 Martin Liska <mliska@suse.cz>
2934 * method.c: Wrap array in ctor with braces in order
2935 to silent clang warnings.
2937 2020-03-03 Jason Merrill <jason@redhat.com>
2938 Marek Polacek <polacek@redhat.com>
2940 PR c++/90505 - mismatch in template argument deduction.
2941 * pt.c (tsubst): Don't reduce the template level of template
2942 parameters when tf_partial.
2944 2020-03-03 Jakub Jelinek <jakub@redhat.com>
2947 * constexpr.c (cxx_eval_constant_expression)
2948 <case TARGET_EXPR, case SAVE_EXPR>: Don't record anything if
2949 *non_constant_p is true.
2951 2020-03-03 Jun Ma <JunMa@linux.alibaba.com>
2953 * coroutines.cc (captures_temporary): Strip component_ref
2956 2020-03-03 Jun Ma <JunMa@linux.alibaba.com>
2958 * coroutines.cc (finish_co_await_expr): Build co_await_expr
2959 with unknown_type_node.
2960 (finish_co_yield_expr): Ditto.
2961 *pt.c (type_dependent_expression_p): Set co_await/yield_expr
2962 with unknown type as dependent.
2964 2020-03-02 Iain Sandoe <iain@sandoe.co.uk>
2966 * coroutines.cc (struct local_var_info): Adjust to remove the
2967 reference to the captured var, and just to note that this is a
2968 lambda capture proxy.
2969 (transform_local_var_uses): Handle lambda captures specially.
2970 (struct param_frame_data): Add a visited set.
2971 (register_param_uses): Also check for param uses in lambda
2973 (struct local_vars_frame_data): Remove captures list.
2974 (register_local_var_uses): Handle lambda capture proxies by
2975 noting and bypassing them.
2976 (morph_fn_to_coro): Update to remove lifetime extension of
2977 lambda capture-by-copy vars.
2979 2020-03-02 Iain Sandoe <iain@sandoe.co.uk>
2981 * coroutines.cc (build_co_await): Do not build frame
2982 awaitable proxy vars when the co_await expression is
2983 a function parameter or local var.
2984 (co_await_expander): Do not initialise a frame var with
2986 (transform_await_expr): Only substitute the awaitable
2987 frame var if it's needed.
2988 (register_awaits): Do not make frame copies for param
2989 or local vars that are awaitables.
2991 2020-02-28 Jason Merrill <jason@redhat.com>
2993 Implement P2092R0, Disambiguating Nested-Requirements
2994 * parser.c (cp_parser_requirement_parameter_list): Pass
2995 CP_PARSER_FLAGS_TYPENAME_OPTIONAL.
2997 * call.c (build_user_type_conversion_1): Don't look at the second
2998 conversion of a non-viable candidate.
3000 2020-02-28 Jakub Jelinek <jakub@redhat.com>
3002 P1937R2 - Fixing inconsistencies between const{expr,eval} functions
3003 * typeck.c (cp_build_addr_expr_1): Allow taking address of immediate
3004 functions in unevaluated contexts.
3006 2020-02-27 Nathan Sidwell <nathan@acm.org>
3009 * pt.c (template_args_equal): Pass ARGUMENT_PACKS through to
3011 * tree.c (cp_tree_equal): Compare ARGUMENT_PACKS here,
3012 * typeck.c (comptypes): Assert we don't get any argument packs.
3014 * class.c (adjust_clone_args): Correct arg-checking assert.
3015 * typeck.c (comptypes): Assert not nulls.
3017 2020-02-26 Marek Polacek <polacek@redhat.com>
3019 PR c++/93789 - ICE with invalid array bounds.
3020 * decl.c (compute_array_index_type_loc): Don't use the folded
3021 size when folding cleared TREE_CONSTANT.
3023 2020-02-26 Iain Sandoe <iain@sandoe.co.uk>
3025 * class.c (classtype_has_non_deleted_copy_ctor): New.
3026 * coroutines.cc (struct param_info): Keep track of params
3027 that are references, and cache the original type and whether
3028 the DTOR is trivial.
3029 (build_actor_fn): Handle param copies always, and adjust the
3030 handling for references.
3031 (register_param_uses): Only handle uses here.
3032 (classtype_has_non_deleted_copy_ctor): New.
3033 (morph_fn_to_coro): Adjust param copy handling to match n4849
3034 by reordering ahead of the promise CTOR and always making a
3035 frame copy, even if the param is unused in the coroutine body.
3036 * cp-tree.h (classtype_has_non_deleted_copy_ctor): New.
3038 2020-02-26 Patrick Palka <ppalka@redhat.com>
3040 * constraint.cc (finish_constraint_binary_op): Set expr's location range
3041 to the range of its operands.
3042 (satisfy_atom): Pass MAP instead of ARGS to diagnose_atomic_constraint.
3043 (diagnose_trait_expr): Take the instantiated parameter mapping MAP
3044 instead of the corresponding template arguments ARGS and adjust body
3046 (diagnose_requires_expr): Likewise.
3047 (diagnose_atomic_constraint): Likewise. When printing an atomic
3048 constraint expression, print the instantiated parameter mapping
3050 * cxx-pretty-print.cc (cxx_pretty_printer::expression)
3051 [NONTYPE_ARGUMENT_PACK]: Print braces around a NONTYPE_ARGUMENT_PACK.
3052 (cxx_pretty_printer::type_id): Handle TYPE_ARGUMENT_PACK.
3054 2020-02-26 Marek Polacek <polacek@redhat.com>
3056 PR c++/93676 - value-init crash in template.
3057 * init.c (build_new_1): Don't call build_vec_init in a template.
3059 2020-02-26 Marek Polacek <polacek@redhat.com>
3061 PR c++/93862 - ICE with static_cast when converting from int[].
3062 * call.c (reference_compatible_p): No longer static.
3063 * cp-tree.h (reference_compatible_p): Declare.
3064 * typeck.c (build_static_cast_1): Use reference_compatible_p instead
3065 of reference_related_p.
3067 2020-02-26 Marek Polacek <polacek@redhat.com>
3069 PR c++/93803 - ICE with constexpr init and [[no_unique_address]].
3070 * constexpr.c (reduced_constant_expression_p): Don't crash on a null
3073 2020-02-24 Martin Sebor <msebor@redhat.com>
3076 * parser.c (cp_parser_check_class_key): Avoid issuing -Wredundant-tags
3077 in shared C/C++ code in headers.
3078 Remove a duplicate hunk of code.
3080 2020-02-24 Marek Polacek <polacek@redhat.com>
3082 PR c++/93869 - ICE with -Wmismatched-tags.
3083 * parser.c (cp_parser_check_class_key): Check class_key earlier.
3085 2020-02-24 Marek Polacek <polacek@redhat.com>
3087 PR c++/93712 - ICE with ill-formed array list-initialization.
3088 * call.c (next_conversion): Return NULL for ck_aggr.
3089 (build_aggr_conv): Set u.expr instead of u.next.
3090 (build_array_conv): Likewise.
3091 (build_complex_conv): Likewise.
3092 (conv_get_original_expr): Handle ck_aggr.
3094 2020-02-24 Jakub Jelinek <jakub@redhat.com>
3096 P1937R2 - Fixing inconsistencies between const{expr,eval} functions
3097 * call.c (build_over_call): Don't evaluate immediate functions in
3098 unevaluated operands.
3100 2020-02-24 Jason Merrill <jason@redhat.com>
3102 P0780R2: Resolve lambda init-capture pack grammar.
3103 * parser.c (cp_parser_lambda_introducer): Expect &...x=y rather than
3106 2020-02-22 Marek Polacek <polacek@redhat.com>
3109 * decl.c (grokdeclarator): Use %qs in a diagnostic message.
3111 2020-02-21 Martin Sebor <msebor@redhat.com>
3113 PR gcov-profile/93753
3114 * class.c (check_flexarrays): Tighten up a test for potential members
3115 of anonymous structs or unions.
3117 2020-02-20 Martin Sebor <msebor@redhat.com>
3120 * parser.c (cp_parser_check_class_key): Only handle true C++ class-keys.
3122 2020-02-20 Martin Liska <mliska@suse.cz>
3124 PR translation/93841
3125 * config/or1k/or1k.opt: Remove superfluous word.
3126 * doc/invoke.texi: Likewise.
3128 2020-02-20 Martin Liska <mliska@suse.cz>
3130 PR translation/93838
3131 * parser.c (cp_parser_decl_specifier_seq): Remove trailing space.
3133 2020-02-19 Marek Polacek <polacek@redhat.com>
3135 PR c++/93169 - wrong-code with a non-constexpr constructor.
3136 * constexpr.c (cxx_eval_call_expression): Only set TREE_READONLY
3137 on constant CONSTRUCTORs.
3139 2020-02-15 Marek Polacek <polacek@redhat.com>
3141 PR c++/93710 - poor diagnostic for array initializer.
3142 * call.c (build_user_type_conversion_1): Use cp_expr_loc_or_input_loc
3145 2020-02-15 Jason Merrill <jason@redhat.com>
3148 * pt.c (any_template_parm_r): Look into lambda body.
3151 * pt.c (any_template_parm_r): Remove CONSTRUCTOR handling.
3153 2020-02-14 Jakub Jelinek <jakub@redhat.com>
3156 * class.c (enum_min_precision): Change prec type from int to int &.
3159 * cp-tree.h (enum cp_tree_index): Add CPTI_FALLBACK_DFLOAT32_TYPE,
3160 CPTI_FALLBACK_DFLOAT64_TYPE and CPTI_FALLBACK_DFLOAT128_TYPE.
3161 (fallback_dfloat32_type, fallback_dfloat64_type,
3162 fallback_dfloat128_type): Define.
3163 * mangle.c (write_builtin_type): Handle fallback_dfloat*_type like
3165 * rtti.c (emit_support_tinfos): Emit DFP typeinfos even when dfp
3166 is disabled for compatibility.
3168 2020-02-13 Jason Merrill <jason@redhat.com>
3171 * name-lookup.c (matching_fn_p): A function does not match a
3176 * tree.c (decl_linkage): Always lk_none for locals.
3178 2020-02-12 Jason Merrill <jason@redhat.com>
3182 * tree.c (cp_walk_subtrees): Walk CONSTRUCTOR types here.
3183 * pt.c (find_parameter_packs_r): Not here.
3185 2020-02-12 Iain Sandoe <iain@sandoe.co.uk>
3187 * coroutines.cc (build_actor_fn): Implement deallocation function
3188 selection per n4849, dcl.fct.def.coroutine bullet 12.
3189 (morph_fn_to_coro): Implement allocation function selection per
3190 n4849, dcl.fct.def.coroutine bullets 9 and 10.
3192 2020-02-12 Marek Polacek <polacek@redhat.com>
3194 PR c++/93684 - ICE-on-invalid with broken attribute.
3195 * parser.c (cp_parser_std_attribute): Peek a token first before
3198 2020-02-11 Jason Merrill <jason@redhat.com>
3201 * class.c (add_implicitly_declared_members): Use do_friend.
3202 * method.c (implicitly_declare_fn): Fix friend handling.
3203 (decl_remember_implicit_trigger_p): New.
3204 (synthesize_method): Use it.
3205 * decl2.c (mark_used): Use it.
3207 2020-02-11 Jason Merrill <jason@redhat.com>
3211 * constexpr.c (maybe_constant_value): Correct earlier change.
3212 (cxx_eval_binary_expression) [SPACESHIP_EXPR]: Pass lval through.
3213 * method.c (genericize_spaceship): Wrap result in TARGET_EXPR.
3215 2020-02-12 Patrick Palka <ppalka@redhat.com>
3219 * type-utils.h (find_type_usage): Refactor to take a tree * and to
3220 return a tree *, and update documentation accordingly.
3221 * pt.c (make_auto_1): Set AUTO_IS_DECLTYPE when building a
3222 decltype(auto) node.
3223 (make_constrained_decltype_auto): No need to explicitly set
3224 AUTO_IS_DECLTYPE anymore.
3225 (splice_late_return_type): Use find_type_usage to find and
3226 replace a possibly nested auto node instead of using is_auto.
3227 Check test for is_auto into an assert when deciding whether
3228 to late_return_type.
3229 (type_uses_auto): Adjust the call to find_type_usage.
3230 * parser.c (cp_parser_decltype): No need to explicitly set
3231 AUTO_IS_DECLTYPE anymore.
3233 * error.c (dump_decl) [CONCEPT_DECL]: Use dump_simple_decl.
3234 (dump_simple_decl): Handle standard concept definitions as well as
3235 variable concept definitions.
3237 2020-02-10 Jakub Jelinek <jakub@redhat.com>
3240 * error.c (dump_decl_name): Fix up last argument to strncmp.
3242 2020-02-10 Jason Merrill <jason@redhat.com>
3245 * tree.c (array_of_unknown_bound_p): New.
3246 * init.c (perform_member_init): Do nothing for flexible arrays.
3248 2020-02-09 Jakub Jelinek <jakub@redhat.com>
3251 * constexpr.c (cxx_eval_constant_expression): If obj is heap var with
3252 ARRAY_TYPE, use the element type. Punt if objtype after that is not
3255 2020-02-08 Jason Merrill <jason@redhat.com>
3258 * expr.c (fold_for_warn): Call maybe_constant_value.
3259 * constexpr.c (struct constexpr_ctx): Add uid_sensitive bit-field.
3260 (maybe_constant_value): Add uid_sensitive parm.
3261 (get_fundef_copy): Don't copy if it's true.
3262 (cxx_eval_call_expression): Don't instantiate if it's true.
3263 (cxx_eval_outermost_constant_expr): Likewise.
3266 * constexpr.c (maybe_constant_value): Don't unshare if the cached
3267 value is the same as the argument.
3269 * typeck.c (maybe_warn_about_returning_address_of_local): Add
3272 * typeck2.c (process_init_constructor): Also clear TREE_SIDE_EFFECTS
3275 2020-02-08 Jakub Jelinek <jakub@redhat.com>
3278 * constexpr.c (find_array_ctor_elt): If last element has no index,
3279 for flag_checking verify all elts have no index. If i is within the
3280 elts, return it directly, if it is right after the last elt, append
3281 if NULL index, otherwise force indexes on all elts.
3282 (cxx_eval_store_expression): Allow cep->index to be NULL.
3284 2020-02-07 Marek Polacek <polacek@redhat.com>
3286 PR c++/92947 - Paren init of aggregates in unevaluated context.
3287 * call.c (build_new_method_call_1): Don't check
3288 cp_unevaluated_operand. Check the return value of digest_init.
3290 2020-02-06 Jason Merrill <jason@redhat.com>
3293 * tree.c (cp_walk_subtrees): Walk into type template arguments.
3294 * cp-tree.h (TYPE_TEMPLATE_INFO_MAYBE_ALIAS): Use typedef_variant_p
3295 instead of TYPE_ALIAS_P.
3296 * pt.c (push_template_decl_real): Likewise.
3297 (find_parameter_packs_r): Likewise. Remove dead code.
3298 * error.c (find_typenames_r): Remove dead code.
3300 2020-02-06 Jason Merrill <jason@redhat.com>
3303 * parser.c (cp_parser_constraint_primary_expression): Do the main
3304 parse non-tentatively.
3306 2020-02-06 Marek Polacek <polacek@redhat.com>
3308 PR c++/93597 - ICE with lambda in operator function.
3309 * name-lookup.c (maybe_save_operator_binding): Check is_overloaded_fn.
3311 2020-02-05 Jason Merrill <jason@redhat.com>
3314 * pt.c (tsubst_decl) [PARM_DECL]: Check cp_unevaluated_operand in
3315 handling of TREE_CHAIN for empty pack.
3317 2020-02-05 Jakub Jelinek <jakub@redhat.com>
3320 * semantics.c (cp_build_vec_convert): Call decay_conversion on arg
3321 prior to passing it to c_build_vec_convert.
3323 2020-02-05 Marek Polacek <polacek@redhat.com>
3325 PR c++/93559 - ICE with CONSTRUCTOR flags verification.
3326 * decl.c (reshape_init_array_1): Don't reuse a CONSTRUCTOR with
3329 2020-02-05 Jason Merrill <jason@redhat.com>
3332 * decl.c (grokdeclarator): Reject field of current class type even
3335 2020-02-05 Bin Cheng <bin.cheng@linux.alibaba.com>
3337 * coroutines.cc (maybe_promote_captured_temps): Increase the index
3338 number for temporary variables' name.
3340 2020-02-05 Jun Ma <JunMa@linux.alibaba.com>
3342 * coroutines.cc (build_co_await): Call convert_from_reference
3343 to wrap co_await_expr with indirect_ref which avoid
3344 reference/non-reference type confusion.
3346 (co_await_expander): Sink to call_expr if await_resume
3347 is wrapped by indirect_ref.
3349 2020-02-04 Jason Merrill <jason@redhat.com>
3352 * constraint.cc (satisfy_declaration_constraints): Check return
3353 value of push_tinst_level.
3356 * constexpr.c (cxx_eval_array_reference): {}-initialize missing
3357 elements instead of value-initializing them.
3360 * init.c (perform_member_init): Simplify.
3361 * constexpr.c (cx_check_missing_mem_inits): Allow uninitialized
3363 (cxx_eval_vec_init_1): Handle CONSTRUCTOR.
3365 2020-02-04 Iain Sandoe <iain@sandoe.co.uk>
3367 * coroutines.cc (find_promise_type): Delete unused forward
3369 (struct coroutine_info): Add a bool for no promise type error.
3370 (coro_promise_type_found_p): Only emit the error for a missing
3371 promise once in each affected coroutine.
3373 2020-02-03 Jason Merrill <jason@redhat.com>
3376 * constexpr.c (cxx_eval_constant_expression) [PARM_DECL]: Don't
3377 defer loading the value of a reference.
3379 2020-02-03 Jason Merrill <jason@redhat.com>
3382 * constexpr.c (potential_constant_expression_1) [PARM_DECL]: Allow
3384 [COMPONENT_REF]: A member function reference doesn't use the object
3387 2020-02-03 Iain Sandoe <iain@sandoe.co.uk>
3390 * coroutines.cc (struct coroutine_info): Add a bool flag to note
3391 that we emitted an error for a bad function return type.
3392 (get_coroutine_info): Tolerate an unset info table in case of
3394 (find_coro_traits_template_decl): In case of error or if we didn't
3395 find a type template, note we emitted the error and suppress
3397 (find_coro_handle_template_decl): Likewise.
3398 (instantiate_coro_traits): Only check for error_mark_node in the
3399 return from lookup_qualified_name.
3400 (coro_promise_type_found_p): Reorder initialization so that we check
3401 for the traits and their usability before allocation of the info
3402 table. Check for a suitable return type and emit a diagnostic for
3403 here instead of relying on the lookup machinery. This allows the
3404 error to have a better location, and means we can suppress multiple
3406 (coro_function_valid_p): Re-check for a valid promise (and thus the
3407 traits) before proceeding. Tolerate missing info as a fatal error.
3409 2020-02-03 Jason Merrill <jason@redhat.com>
3412 * cp-gimplify.c (predeclare_vla): New.
3413 (cp_genericize_r) [NOP_EXPR]: Call it.
3415 2020-02-03 Jun Ma <JunMa@linux.alibaba.com>
3417 * coroutines.cc (transform_await_wrapper): Set actor funcion as
3418 new context of label_decl.
3419 (build_actor_fn): Fill new field of await_xform_data.
3421 2020-02-02 Marek Polacek <polacek@redhat.com>
3423 PR c++/93530 - ICE on invalid alignas in a template.
3424 * decl.c (grokdeclarator): Call cplus_decl_attributes instead of
3427 2020-01-31 Jason Merrill <jason@redhat.com>
3430 * semantics.c (process_outer_var_ref): Capture VLAs even in
3431 unevaluated context.
3434 * decl.c (reshape_init_array_1): Reuse a single CONSTRUCTOR with
3435 non-aggregate elements.
3436 (reshape_init_array): Add first_initializer_p parm.
3437 (reshape_init_r): Change first_initializer_p from bool to tree.
3438 (reshape_init): Pass init to it.
3441 * parser.c (cp_parser_initializer_list): Suppress location wrappers
3444 2020-01-29 Jason Merrill <jason@redhat.com>
3447 * pt.c (tsubst_copy_and_build) [EQ_EXPR]: Only suppress warnings if
3448 the expression was dependent before substitution.
3450 2020-01-30 Bin Cheng <bin.cheng@linux.alibaba.com>
3452 * coroutines.cc (act_des_fn): New.
3453 (morph_fn_to_coro): Call act_des_fn to build actor/destroy decls.
3454 Access promise via actor function's frame pointer argument.
3455 (build_actor_fn, build_destroy_fn): Use frame pointer argument.
3457 2020-01-30 Bin Cheng <bin.cheng@linux.alibaba.com>
3459 * coroutines.cc (co_await_expander): Handle type conversion case.
3461 2020-01-29 Jason Merrill <jason@redhat.com>
3466 * parser.c (cp_parser_type_specifier_seq): Don't parse attributes in
3467 a trailing return type.
3468 (cp_parser_lambda_declarator_opt): Parse C++11 attributes before
3471 2020-01-29 Marek Polacek <polacek@redhat.com>
3473 PR c++/91754 - Fix template arguments comparison with class NTTP.
3474 * pt.c (class_nttp_const_wrapper_p): New.
3475 (template_args_equal): See through class_nttp_const_wrapper_p
3478 2020-01-29 Marek Polacek <polacek@redhat.com>
3480 PR c++/92948 - Fix class NTTP with template arguments.
3481 * pt.c (convert_nontype_argument): Use IMPLICIT_CONV_EXPR when
3482 converting a value-dependent expression to a class type.
3483 (tsubst_copy) <case VIEW_CONVERT_EXPR>: Allow IMPLICIT_CONV_EXPR
3484 as the result of the tsubst_copy call.
3486 2020-01-29 Jakub Jelinek <jakub@redhat.com>
3489 * cp-gimplify.c (cxx_omp_predetermined_sharing): Return
3490 OMP_CLAUSE_DEFAULT_SHARED for typeinfo decls.
3492 2020-01-28 Jason Merrill <jason@redhat.com>
3495 * parser.c (cp_parser_lambda_expression): Clear in_discarded_stmt.
3499 * decl2.c (copy_linkage): Do copy DECL_ONE_ONLY and DECL_WEAK.
3502 * call.c (build_user_type_conversion_1): Allow a template conversion
3503 returning an rvalue reference to bind directly to an lvalue.
3506 * decl.c (grokdeclarator): Propagate eh spec from typedef.
3508 2020-01-28 Martin Liska <mliska@suse.cz>
3511 * pt.c (redeclare_class_template): Group couple of
3512 errors and inform messages with auto_diagnostic_group.
3514 2020-01-28 Martin Liska <mliska@suse.cz>
3517 * pt.c (redeclare_class_template): Use inform
3518 for the second location.
3520 2020-01-27 Jason Merrill <jason@redhat.com>
3523 * pt.c (tsubst_copy) [STRING_CST]: Don't use fold_convert.
3525 2020-01-27 Iain Sandoe <iain@sandoe.co.uk>
3528 * coroutines.cc (morph_fn_to_coro): Check the ramp return
3529 value when it is constructed from the 'get return object'.
3531 2020-01-27 Nathan Sidwell <nathan@acm.org>
3534 * name-lookup.c (is_ancestor): Allow CHILD to be a namespace alias.
3536 2020-01-26 Jason Merrill <jason@redhat.com>
3539 * except.c (maybe_noexcept_warning): Check DECL_IN_SYSTEM_HEADER and
3540 temporarily enable -Wsystem-headers. Change second warning to
3544 * semantics.c (finish_call_expr): Don't call
3545 instantiate_non_dependent_expr before warn_for_memset.
3547 2020-01-25 Marek Polacek <polacek@redhat.com>
3549 PR c++/93414 - poor diagnostic for dynamic_cast in constexpr context.
3550 * constexpr.c (cxx_eval_dynamic_cast_fn): Add a reference
3551 dynamic_cast diagnostic.
3553 2020-01-24 Jason Merrill <jason@redhat.com>
3555 PR c++/93400 - ICE with constrained friend.
3556 * constraint.cc (maybe_substitute_reqs_for): New.
3557 * decl.c (function_requirements_equivalent_p): Call it.
3558 * pt.c (tsubst_friend_function): Only substitute
3559 TEMPLATE_PARMS_CONSTRAINTS.
3560 (tsubst_template_parms): Copy constraints.
3562 2020-01-24 Jason Merrill <jason@redhat.com>
3564 PR c++/93279 - ICE with lambda in member operator.
3565 * name-lookup.c (maybe_save_operator_binding): Don't remember
3566 class-scope bindings.
3568 2020-01-24 Jason Merrill <jason@redhat.com>
3570 PR c++/93377 - ICE with member alias in constraint.
3571 * pt.c (any_template_parm_r): Look at template arguments for all
3572 aliases, not only alias templates.
3574 2020-01-24 Marek Polacek <polacek@redhat.com>
3576 PR c++/93299 - ICE in tsubst_copy with parenthesized expression.
3577 * pt.c (tsubst_copy): Handle a REF_PARENTHESIZED_P VIEW_CONVERT_EXPR.
3579 2020-01-24 Jason Merrill <jason@redhat.com>
3581 PR c++/92852 - ICE with generic lambda and reference var.
3582 * constexpr.c (maybe_constant_value): Likewise.
3584 2020-01-23 Paolo Carlini <paolo.carlini@oracle.com>
3587 * parser.c (cp_parser_nested_name_specifier_opt): Properly
3588 diagnose concept-ids.
3590 2020-01-23 Jason Merrill <jason@redhat.com>
3592 PR c++/93331 - ICE with __builtin_strchr.
3593 * constexpr.c (cxx_eval_builtin_function_call): Use the original
3594 argument if we didn't manage to extract a STRING_CST.
3596 PR c++/93345 - ICE with defaulted dtor and template.
3598 * decl.c (cxx_maybe_build_cleanup): Don't try to set
3599 throwing_cleanup in a template.
3601 2020-01-22 Marek Polacek <polacek@redhat.com>
3603 PR c++/92907 - noexcept does not consider "const" in member functions.
3604 * g++.dg/cpp0x/noexcept56.C: New test.
3606 2020-01-22 Marek Polacek <polacek@redhat.com>
3608 PR c++/93324 - ICE with -Wall on constexpr if.
3609 * semantics.c (is_std_constant_evaluated_p): Check fndecl.
3611 2020-01-22 Patrick Palka <ppalka@redhat.com>
3613 * constraint.cc (get_mapped_args): Avoid using auto_vec
3614 as a vector element. Release the vectors inside the lists
3616 * parser.c (cp_literal_operator_id): Free the buffer.
3618 2020-01-22 Jun Ma <JunMa@linux.alibaba.com>
3620 * coroutines.cc (finish_co_await_expr): Add error check on return
3621 value of build_co_await.
3622 (finish_co_yield_expr,): Ditto.
3624 2020-01-22 Jun Ma <JunMa@linux.alibaba.com>
3626 * coroutines.cc (lookup_awaitable_member): Lookup an awaitable member.
3627 (lookup_promise_method): Emit diagnostic when get NULL_TREE back only.
3628 (build_co_await): Use lookup_awaitable_member instead of lookup_member.
3630 2020-01-21 Jason Merrill <jason@redhat.com>
3632 PR c++/60855 - ICE with sizeof VLA capture.
3633 * lambda.c (is_lambda_ignored_entity): Don't look past VLA capture.
3635 PR c++/90732 - ICE with VLA capture and generic lambda.
3636 * pt.c (tsubst_lambda_expr): Repeat add_capture for VLAs.
3638 2020-01-21 Iain Sandoe <iain@sandoe.co.uk>
3639 Bin Cheng <bin.cheng@linux.alibaba.com>
3641 * coroutines.cc (coro_promise_type_found_p): Check for NULL return
3642 from complete_type_or_else.
3643 (register_param_uses): Likewise.
3644 (build_co_await): Do not try to use complete_type_or_else for void
3645 types, otherwise for incomplete types, check for NULL return from
3646 complete_type_or_else.
3648 2020-01-21 Jason Merrill <jason@redhat.com>
3650 PR c++/91476 - anon-namespace reference temp clash between TUs.
3651 * decl2.c (copy_linkage): Factor out of get_guard.
3652 * call.c (make_temporary_var_for_ref_to_temp): Use it.
3653 * decl.c (cp_finish_decomp): Use it.
3654 (cp_finish_decl): determine_visibility sooner.
3656 2020-01-21 Bin Cheng <bin.cheng@linux.alibaba.com>
3658 * coroutines.cc (finish_co_await_expr): Set return value flag.
3659 (finish_co_yield_expr, morph_fn_to_coro): Ditto.
3661 2020-01-19 Jason Merrill <jason@redhat.com>
3663 PR c++/33799 - destroy return value, take 2.
3664 * cp-tree.h (current_retval_sentinel): New macro.
3665 (struct language_function): Add throwing_cleanup bitfield.
3666 * decl.c (cxx_maybe_build_cleanup): Set it.
3667 * except.c (maybe_set_retval_sentinel)
3668 (maybe_splice_retval_cleanup): New functions.
3669 * parser.c (cp_parser_compound_statement): Call
3670 maybe_splice_retval_cleanup.
3671 * typeck.c (check_return_expr): Call maybe_set_retval_sentinel.
3673 * parser.c (cp_parser_lambda_body): Use cp_parser_function_body.
3675 2020-01-18 Jakub Jelinek <jakub@redhat.com>
3677 * coroutines.cc (get_fn_local_identifier): Fix NO_DOT_IN_LABEL
3678 but non-NO_DOLLAR_IN_LABEL case build.
3680 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
3682 * Make-lang.in: Add coroutines.o.
3683 * cp-tree.h (lang_decl-fn): coroutine_p, new bit.
3684 (DECL_COROUTINE_P): New.
3685 * lex.c (init_reswords): Enable keywords when the coroutine flag
3687 * operators.def (co_await): New operator.
3688 * call.c (add_builtin_candidates): Handle CO_AWAIT_EXPR.
3689 (op_error): Likewise.
3690 (build_new_op_1): Likewise.
3691 (build_new_function_call): Validate coroutine builtin arguments.
3692 * constexpr.c (potential_constant_expression_1): Handle
3693 CO_AWAIT_EXPR, CO_YIELD_EXPR, CO_RETURN_EXPR.
3694 * coroutines.cc: New file.
3695 * cp-objcp-common.c (cp_common_init_ts): Add CO_AWAIT_EXPR,
3696 CO_YIELD_EXPR, CO_RETRN_EXPR as TS expressions.
3697 * cp-tree.def (CO_AWAIT_EXPR, CO_YIELD_EXPR, (CO_RETURN_EXPR): New.
3698 * cp-tree.h (coro_validate_builtin_call): New.
3699 * decl.c (emit_coro_helper): New.
3700 (finish_function): Handle the case when a function is found to
3701 be a coroutine, perform the outlining and emit the outlined
3702 functions. Set a bit to signal that this is a coroutine component.
3703 * parser.c (enum required_token): New enumeration RT_CO_YIELD.
3704 (cp_parser_unary_expression): Handle co_await.
3705 (cp_parser_assignment_expression): Handle co_yield.
3706 (cp_parser_statement): Handle RID_CO_RETURN.
3707 (cp_parser_jump_statement): Handle co_return.
3708 (cp_parser_operator): Handle co_await operator.
3709 (cp_parser_yield_expression): New.
3710 (cp_parser_required_error): Handle RT_CO_YIELD.
3711 * pt.c (tsubst_copy): Handle CO_AWAIT_EXPR.
3712 (tsubst_expr): Handle CO_AWAIT_EXPR, CO_YIELD_EXPR and
3714 * tree.c (cp_walk_subtrees): Likewise.
3716 2020-01-17 Jason Merrill <jason@redhat.com>
3718 PR c++/92531 - ICE with noexcept(lambda).
3719 * pt.c (uses_template_parms): Don't try to enumerate all the
3722 2020-01-17 Jakub Jelinek <jakub@redhat.com>
3725 * parser.c (cp_parser_template_name): Look up deprecated attribute
3726 in DECL_TEMPLATE_RESULT or its type's attributes.
3728 2020-01-16 Jason Merrill <jason@redhat.com>
3730 PR c++/93286 - ICE with __is_constructible and variadic template.
3731 * pt.c (tsubst) [TREE_LIST]: Handle pack expansion.
3732 (tsubst_copy_and_build) [TRAIT_EXPR]: Always use tsubst for type2.
3734 PR c++/93280 - ICE with aggregate assignment and DMI.
3735 * init.c (get_nsdmi): Set TARGET_EXPR_DIRECT_INIT_P here.
3736 * typeck2.c (digest_nsdmi_init): Not here.
3738 2020-01-15 Paolo Carlini <paolo.carlini@oracle.com>
3741 * cp-tree.h (is_constrained_auto): New.
3742 * parser.c (cp_parser_maybe_commit_to_declaration): Correctly
3743 handle concept-check expressions; take a cp_decl_specifier_seq*
3745 (cp_parser_condition): Update call.
3746 (cp_parser_simple_declaration): Likewise.
3747 (cp_parser_placeholder_type_specifier): Correctly handle
3748 concept-check expressions.
3750 2020-01-15 Jason Merrill <jason@redhat.com>
3753 PR c++/33799 - destroy return value if local cleanup throws.
3754 * cp-tree.h (current_retval_sentinel): New macro.
3755 * decl.c (start_preparsed_function): Set up cleanup for retval.
3756 * typeck.c (check_return_expr): Set current_retval_sentinel.
3758 PR c++/93257 - consteval void function.
3759 * constexpr.c (verify_constant): Allow void_node.
3761 PR c++/92871 - bad code with xvalue and GNU ?: extension.
3762 * call.c (prevent_lifetime_extension): New.
3763 (build_conditional_expr_1): Use it.
3765 2020-01-14 Nathan Sidwell <nathan@acm.org>
3768 * pt.c (retrieve_specialization): Use get_template_info, not open
3772 * pt.c (retrieve_specialization): Get the TI from the decl or the
3773 classtype as appropriate.
3775 2020-01-14 David Malcolm <dmalcolm@redhat.com>
3777 * cp-gimplify.c (source_location_table_entry_hash::empty_zero_p):
3778 New static constant.
3779 * cp-tree.h (named_decl_hash::empty_zero_p): Likewise.
3780 (struct named_label_hash::empty_zero_p): Likewise.
3781 * decl2.c (mangled_decl_hash::empty_zero_p): Likewise.
3783 2020-01-14 Jason Merrill <jason@redhat.com>
3785 PR c++/92590 - wrong handling of inherited default ctor.
3786 * class.c (add_method): A constrained inherited ctor doesn't hide an
3787 implicit derived ctor.
3789 PR c++/92552 - ICE with inherited constrained default ctor.
3790 * pt.c (instantiate_class_template_1): Copy
3791 TYPE_HAS_USER_CONSTRUCTOR.
3792 PR c++/91930 - ICE with constrained inherited default ctor.
3793 * name-lookup.c (do_class_using_decl): Set TYPE_HAS_USER_CONSTRUCTOR
3794 for inherited constructor.
3795 PR c++/92594 - ICE with inherited trivial default ctor.
3796 * method.c (trivial_fn_p): Treat an inherited default constructor
3797 like a normal default constructor.
3799 PR c++/92594 - ICE with inherited trivial default ctor.
3800 * method.c (trivial_fn_p): Treat an inherited default constructor
3801 like a normal default constructor.
3803 PR c++/92009 - ICE with punning of typeid.
3804 * rtti.c (get_tinfo_desc): Call xref_basetypes.
3805 * constexpr.c (cxx_fold_indirect_ref): Don't strip
3808 2020-01-13 Jason Merrill <jason@redhat.com>
3810 PR c++/92746 - ICE with noexcept of function concept check.
3811 * except.c (check_noexcept_r): Handle concept-check.
3813 PR c++/92582 - ICE with member template as requirement.
3814 * pt.c (struct find_template_parameter_info): Add ctx_parms.
3815 (any_template_parm_r): Handle TEMPLATE_DECL.
3816 (find_template_parameters): Take parms instead of their depth.
3817 * constraint.cc (build_parameter_mapping): Pass them.
3819 PR c++/33799 - destroy return value if local cleanup throws.
3820 * cp-tree.h (current_retval_sentinel): New macro.
3821 * decl.c (start_preparsed_function): Set up cleanup for retval.
3822 * typeck.c (check_return_expr): Set current_retval_sentinel.
3824 PR c++/93238 - short right-shift with enum.
3825 * typeck.c (cp_build_binary_op): Use folded op1 for short_shift.
3827 2020-01-10 Jason Merrill <jason@redhat.com>
3829 * typeck.c (cp_build_binary_op): Restore short_shift code.
3831 PR c++/93143 - incorrect tree sharing with constexpr.
3832 * constexpr.c (cxx_eval_outermost_constant_expr): Don't assume
3833 CONSTRUCTORs are already unshared.
3835 PR c++/93173 - incorrect tree sharing.
3837 * cp-gimplify.c (cp_gimplify_init_expr, cp_gimplify_expr): Use
3838 copy_if_shared after cp_genericize_tree.
3839 * typeck2.c (split_nonconstant_init): Don't unshare here.
3841 2020-01-08 Jason Merrill <jason@redhat.com>
3843 * cp-gimplify.c (cp_gimplify_expr) [TARGET_EXPR]: Check
3844 TARGET_EXPR_DIRECT_INIT_P.
3845 * constexpr.c (cxx_eval_constant_expression): Likewise.
3847 2020-01-08 Jason Merrill <jason@redhat.com>
3849 PR c++/91369 - constexpr destructor and member initializer.
3850 * constexpr.c (cxx_eval_store_expression): Look through TARGET_EXPR
3851 when not preevaluating.
3853 2020-01-08 Jason Merrill <jason@redhat.com>
3855 * constexpr.c (cxx_eval_call_expression): Remove DECL_BY_REFERENCE
3858 2020-01-07 Paolo Carlini <paolo.carlini@oracle.com>
3860 * init.c (build_new): Add location_t parameter and use it throughout.
3861 (build_raw_new_expr): Likewise.
3862 * parser.c (cp_parser_new_expression): Pass the combined_loc.
3863 * pt.c (tsubst_copy_and_build): Adjust call.
3864 * cp-tree.h: Update declarations.
3866 2020-01-07 Jason Merrill <jason@redhat.com>
3868 PR c++/47877 - -fvisibility-inlines-hidden and member templates.
3869 * decl2.c (determine_visibility): -fvisibility-inlines-hidden beats
3870 explicit class visibility for a template.
3872 2020-01-07 Richard Sandiford <richard.sandiford@arm.com>
3874 * mangle.c (mangle_type_attribute_p): New function, split out from...
3875 (write_CV_qualifiers_for_type): ...here. Don't mangle attributes
3876 that contain a space.
3878 2020-01-07 Jakub Jelinek <jakub@redhat.com>
3881 * constexpr.c (struct constexpr_global_ctx): Add heap_alloc_count
3882 member, initialize it to zero in ctor.
3883 (cxx_eval_call_expression): Bump heap_dealloc_count when deleting
3884 a heap object. Don't cache calls to functions which allocate some
3885 heap objects and don't deallocate them or deallocate some heap
3886 objects they didn't allocate.
3888 2020-01-06 Jason Merrill <jason@redhat.com>
3890 PR c++/92552 - ICE with inherited constrained default ctor.
3891 * pt.c (instantiate_class_template_1): Copy
3892 TYPE_HAS_USER_CONSTRUCTOR.
3893 * class.c (one_inherited_ctor): Don't set it here.
3895 2020-01-06 Andrew Sutton <asutton@lock3software.com>
3897 PR c++/92739 - parsing requires clause with attributes.
3898 * parser.c (cp_parser_constraint_requires_parens): Exclude
3899 attributes as postfix expressions.
3901 2020-01-05 Jakub Jelinek <jakub@redhat.com>
3904 * parser.c (cp_parser_check_class_key): Disable access checks for the
3906 (cp_parser_maybe_warn_enum_key): Likewise. Return early if
3907 !warn_redundant_tags.
3909 2010-01-05 Jakub Jelinek <jakub@redhat.com>
3912 * cp-gimplify.c (cp_gimplify_init_expr): Don't look through
3913 TARGET_EXPR if it has been gimplified already.
3915 2020-01-03 Jason Merrill <jason@redhat.com>
3917 PR c++/93033 - incorrect tree node sharing with array init.
3918 * typeck2.c (split_nonconstant_init): Unshare non-decl.
3919 * cp-gimplify.c (cp_gimplify_init_expr): Only split if -fexceptions.
3921 2020-01-02 Jason Merrill <jason@redhat.com>
3923 * pt.c (invalid_nontype_parm_type_p): Reject class placeholder in
3926 2020-01-02 Jakub Jelinek <jakub@redhat.com>
3929 * cp-objcp-common.c (identifier_global_tag): Return NULL_TREE if name
3930 has not been found, rather than error_mark_node.
3932 2020-01-01 Jakub Jelinek <jakub@redhat.com>
3934 Update copyright years.
3936 Copyright (C) 2020 Free Software Foundation, Inc.
3938 Copying and distribution of this file, with or without modification,
3939 are permitted in any medium without royalty provided the copyright
3940 notice and this notice are preserved.