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blob: af8d713ab7c922cc918d7450344de50ca5f846bc [file] [log] [blame]
2025-12-29 Egas Ribeiro <egas.g.ribeiro@gmail.com>
PR c++/123080
* parser.cc (cp_parser_skip_to_end_of_statement): Don't abort
implicit templates during tentative parsing.
(cp_parser_lambda_declarator_opt): Add cleanup for
fully_implicit_function_template_p before parsing
trailing_requires_clause.
2025-12-29 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119097
PR c++/120005
* constexpr.cc (potential_constant_expression_1): Fall back to
location from parent expression if needed.
* cp-gimplify.cc (enum fold_flags): Add ff_only_non_odr.
(cp_fold_data::cp_fold_data): Assert invariant for flags.
(cp_fold_omp_clause_refs_r): New function.
(cp_fold_r): Specially handle OMP_CLAUSE_DECL.
(cp_fold_function_non_odr_use): New function.
(cp_fold_non_odr_use_1): New function.
(cp_fold_maybe_rvalue): Fold non-ODR uses when requested.
(cp_fold_non_odr_use): New function.
(fold_caches): Increase number of caches.
(get_fold_cache): Use a new cache for non-ODR use walks.
(cp_fold): Skip most folding for non-ODR use walks; always
fold constant-initialized references; remove dead code to
fold __builtin_source_location.
* cp-tree.h (cp_fold_function_non_odr_use): Declare.
(cp_fold_non_odr_use): Declare.
* decl.cc (finish_function): Fold non-ODR uses before saving
constexpr fundef. Invoke PLUGIN_PRE_GENERICIZE before this
folding.
* ptree.cc (cxx_print_xnode): Handle TU_LOCAL_ENTITY.
* tree.cc (bot_manip): Propagate TREE_CONSTANT.
* typeck2.cc (digest_nsdmi_init): Fold non-ODR uses in NSDMIs.
2025-12-23 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122819
* decl.cc (start_preparsed_function): Use
DECL_TEMPLOID_INSTANTIATION instead of
DECL_TEMPLATE_INSTANTIATION to check vague linkage.
* decl2.cc (vague_linkage_p): Likewise.
(c_parse_final_cleanups): Simplify condition.
* pt.cc (non_templated_friend_p): Namespace-scope friend
function declarations without a primary template are still
non-templated.
* semantics.cc (expand_or_defer_fn_1): Also check for temploid
friend functions.
2025-12-23 Egas Ribeiro <egas.g.ribeiro@gmail.com>
PR c++/122550
* decl.cc (member_like_constrained_friend_p): Check that the
friend's enclosing class is an implicit instantiation.
2025-12-23 Egas Ribeiro <egas.g.ribeiro@gmail.com>
PR c++/122958
* pt.cc (maybe_new_partial_specialization): Compare template
parameter lists when checking for existing specializations and
remove flag_concepts check.
2025-12-23 Egas Ribeiro <egas.g.ribeiro@gmail.com>
PR c++/117518
* parser.cc (cp_parser_lambda_expression): Clear
processing_template_parmlist when parsing lambda body.
2025-12-23 Dhruv Chawla <dhruvc@nvidia.com>
* Make-lang.in: Bump GCOV version to 3.
2025-12-22 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122994
* module.cc (depset::disc_bits): New flag
DB_IGNORED_EXPOSURE_BIT.
(depset::is_ignored_exposure_context): New getter.
(depset::hash::ignore_tu_local): Rename to...
(depset::hash::ignore_exposure): ...this, and make private.
(depset::hash::hash): Rename ignore_tu_local.
(depset::hash::ignore_exposure_if): New function.
(trees_out::decl_value): Don't build deps for keyed entities.
(trees_in::decl_value): Handle missing keys.
(trees_out::write_function_def): Use ignore_exposure_if.
(trees_out::write_var_def): Likewise.
(trees_out::write_class_def): Likewise.
(depset::hash::make_dependency): Set DB_IGNORED_EXPOSURE_BIT if
appropriate, or clear it otherwise.
(depset::hash::add_dependency): Rename ignore_tu_local.
(depset::hash::find_dependencies): Set ignore_exposure if in
such a context.
2025-12-22 Yuao Ma <c8ef@outlook.com>
PR c++/123261
* semantics.cc (expand_or_defer_fn_1): Use maybe_constexpr_fn.
2025-12-20 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122712
* module.cc (depset::hash::dep_adl_info): New type.
(depset::hash::dep_adl_entity_list): New work list.
(depset::hash::hash): Create it.
(depset::hash::~hash): Release it.
(trees_out::tree_value): Cache possibly dependent
calls during tree walk.
(depset::hash::add_dependent_adl_entities): New function.
(depset::hash::find_dependencies): Process cached entities.
* name-lookup.cc (name_lookup::tentative): New member.
(name_lookup::name_lookup): Initialize it.
(name_lookup::preserve_state): Propagate tentative from previous
lookup.
(name_lookup::adl_namespace_fns): Don't search imported bindings
during tentative lookup.
(name_lookup::adl_class): Don't attempt to complete class types
during tentative lookup.
(name_lookup::search_adl): Skip type-dependent args and avoid
unnecessary work during tentative lookup.
(lookup_arg_dependent): Add tentative parameter.
* name-lookup.h (lookup_arg_dependent): Likewise.
2025-12-20 Jakub Jelinek <jakub@redhat.com>
PR c++/122690
* tree.cc (implicit_lifetime_type_p): Don't test is_trivially_xible,
instead try to lazily declare dtor and default, copy and move ctors
if needed and check for their triviality and whether they are
deleted.
2025-12-19 Jakub Jelinek <jakub@redhat.com>
PR c++/91388
* semantics.cc (finish_static_assert): Suppress -Wreturn-type warnings
in functions with failed assertions.
2025-12-19 Jason Merrill <jason@redhat.com>
Egas Ribeiro <egas.g.ribeiro@tecnico.ulisboa.pt>
PR c++/117034
* parser.cc (maybe_start_implicit_template): Split out from...
(synthesize_implicit_template_parm): ...here.
(cp_parser_template_id): Call it.
2025-12-19 Egas Ribeiro <egas.g.ribeiro@tecnico.ulisboa.pt>
* decl2.cc (mark_single_function): Return false for error_mark_node.
(mark_used): Likewise.
2025-12-19 Egas Ribeiro <egas.g.ribeiro@tecnico.ulisboa.pt>
PR c++/123044
* typeck2.cc (build_functional_cast_1): Call convert_from_reference
on template CAST_EXPR to match C-style cast behavior.
2025-12-19 Egas Ribeiro <egas.g.ribeiro@gmail.com>
PR c++/122509
* parser.cc (cp_parser_lookup_name): Use protect=2 instead of
protect=0 when calling lookup_member.
2025-12-19 Tobias Burnus <tburnus@baylibre.com>
* parser.cc (cp_parser_omp_clause_uses_allocators): Accept
multiple clause-argument-specifications separated by ';'.
2025-12-19 Jakub Jelinek <jakub@redhat.com>
PR c++/122772
* tree.cc (cp_stabilize_bitfield_reference): New function.
(cp_stabilize_reference): Use it for stabilization of
clk_bitfield or clk_packed lvalues.
2025-12-19 Jakub Jelinek <jakub@redhat.com>
PR debug/122968
* decl.cc (cp_finish_decomp): For structured bindings at namespace
scope which have DECL_HAS_VALUE_EXPR_P set, call early_global_decl
debug hook and put all such structured bindings into
"structured bindings" attribute arguments on the underlying decl.
2025-12-19 Jakub Jelinek <jakub@redhat.com>
PR c++/122834
* typeck.cc (cp_compare_floating_point_conversion_ranks): Return
3 if fmt2->b is 10 except for _Float16 vs. _Decimal128, in that
case return -2.
2025-12-19 Jakub Jelinek <jakub@redhat.com>
PR c++/123030
* init.cc (build_vec_init): Call build_vec_delete_1 for -fexceptions
even if just type_build_dtor_call, not only when
TYPE_HAS_NONTRIVIAL_DESTRUCTOR. But register cleanups only
for TYPE_HAS_NONTRIVIAL_DESTRUCTOR.
2025-12-19 Jakub Jelinek <jakub@redhat.com>
* parser.cc (cp_build_range_for_decls): If expansion_stmt_p,
where we are setting DECL_DECLARED_CONSTEXPR_P on begin/end, use
const qualified iter_type.
* pt.cc (finish_expansion_stmt): Use build_target_expr_with_type
with cv_unqualified to create it instead of get_target_expr to
make it non-const qualified. When creating VAR_DECLs with
DECL_DECLARED_CONSTEXPR_P, make sure they have const qualified
type unless they are references.
2025-12-19 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122922
* module.cc (trees_in::post_types): New member.
(trees_in::trees_in): Initialize it.
(trees_in::~trees_in): Clean it up.
(trees_in::post_process_type): New functions.
(trees_in::tree_node): Save incomplete ARRAY_TYPEs for later
post-processing.
(module_state::read_cluster): Attempt to complete any
ARRAY_TYPEs we saved earlier.
2025-12-19 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122995
* name-lookup.cc (maybe_record_mergeable_decl): Don't build a
STAT_HACK for namespaces.
2025-12-18 Tobias Burnus <tburnus@baylibre.com>
* parser.cc (cp_parser_omp_assumption_clauses): Add
no_openmp_constructs clause.
2025-12-18 Patrick Palka <ppalka@redhat.com>
* decl.cc (tag_name) <case none_type>: Return "typename" as if
typename_type.
2025-12-18 Jakub Jelinek <jakub@redhat.com>
PR c++/123186
* parser.cc (cp_parser_template_id): Use TYPE_IDENTIFIER instead of
TYPE_NAME in second build_typename_type argument.
2025-12-18 Egas Ribeiro <egas.g.ribeiro@gmail.com>
Patrick Palka <ppalka@redhat.com>
PR c++/122070
* pt.cc (type_targs_deducible_from): Fall back to
TYPE_TEMPLATE_INFO when TYPE_TEMPLATE_INFO_MAYBE_ALIAS is NULL.
2025-12-18 Tobias Burnus <tburnus@baylibre.com>
* parser.cc (OMP_TARGET_CLAUSE_MASK): Add
device_type clause.
2025-12-17 benwu25 <soggysocks206@gmail.com>
* parser.cc (cp_parser_init_declarator): Adjust comment.
2025-12-17 benwu25 <soggysocks206@gmail.com>
PR c++/121443
* parser.cc (cp_parser_lambda_expression): Clear
in_declarator_p.
2025-12-17 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/123075
* constraint.cc (evaluate_concept_check): Push to an unrelated
scope, but keep the same access context.
* pt.cc (tsubst_lambda_expr): Don't record lambda scopes for
lambdas attached to a concept.
2025-12-15 Patrick Palka <ppalka@redhat.com>
* parser.cc (cp_parser_template_id): Rebuild instead of modifying
a TYPENAME_TYPE corresponding to a dependently-scoped template.
2025-12-15 Patrick Palka <ppalka@redhat.com>
* cp-tree.h (TYPENAME_TYPE_TAG_BIT_0): New.
(TYPENAME_TYPE_TAG_BIT_1): New.
(TYPENAME_TYPE_TAG_BIT_2): New.
(TYPENAME_IS_ENUM_P): Use get_typename_tag.
(TYPENAME_IS_CLASS_P): Rename to ...
(TYPENAME_IS_CLASS_OR_STRUCT_P): ... this, and use
get_typename_tag.
(TYPENAME_IS_UNION_P): Use get_typename_tag.
(TYPENAME_IS_RESOLVING_P): Use TREE_LANG_FLAG_3
instead of _2.
(get_typename_tag): New.
(set_typename_tag): New.
(tag_name): Declare.
* decl.cc (typename_info): Replace bool fields with a single
tag_types field.
(typename_hasher::equal): Adjust.
(build_typename_type): Adjust.
(tag_name): Handle none_type and scope_type.
* error.cc (dump_type) <case TYPENAME_TYPE>: Use tag_name.
* module.cc (trees_out::type_node) <case TYPENAME_TYPE>: Use
get_typename_tag.
* pt.cc (tsubst) <case TYPENAME_TYPE>: Likewise.
2025-12-15 Patrick Palka <ppalka@redhat.com>
* cp-tree.h (CLASSTYPE_LAMBDA_EXPR): Check CLASS_TYPE_P before
inspecting TYPE_POLYMORPHIC_P.
(TYPE_POLYMORPHIC_P): Restrict to RECORD_TYPE or UNION_TYPE.
Document its use of TREE_LANG_FLAG_2.
* parser.cc (noexcept_override_late_checks): Only
check TYPE_POLYMORPHIC_P on CLASS_TYPE_P types.
* rtti.cc (build_headof): Likewise.
(get_tinfo_ptr_dynamic): Likewise.
(build_typeid): Likewise.
2025-12-15 Patrick Palka <ppalka@redhat.com>
PR c++/122752
* pt.cc (tsubst) <case TYPENAME_TYPE>: Allow TYPENAME_TYPE
resolving to another wildcard type.
2025-12-15 Patrick Palka <ppalka@redhat.com>
PR c++/122668
PR c++/114764
* parser.cc (cp_parser_class_specifier): Adjust after
changing the element type of unparsed_noexcepts. Pass
the class type to noexcept_override_late_checks.
(cp_parser_member_declaration): Set
CP_PARSER_FLAGS_DELAY_NOEXCEPT also for templated friends.
(noexcept_override_late_checks): Add class_type parameter.
(cp_parser_single_declaration): Set
CP_PARSER_FLAGS_DELAY_NOEXCEPT also for template friends
at class template scope.
(cp_parser_save_default_args): Push current_class_type
to unparsed_noexcepts.
* parser.h (cp_unparsed_functions_entry::noexcepts):
Change element type to cp_default_arg_entry.
* pt.cc (dependentish_scope_p): Revert r16-5425 change.
2025-12-15 Jakub Jelinek <jakub@redhat.com>
PR c++/123128
* parser.cc (cp_parser_omp_clause_linear): Initialize next to NULL
rather than UNKNOWN_LOCATION.
2025-12-13 Jakub Jelinek <jakub@redhat.com>
* parser.cc (cp_parser_omp_clause_reduction): Provide fixit hints
for -Wdeprecated-openmp diagnostics.
(cp_parser_omp_clause_linear): Likewise.
(cp_parser_omp_clause_depend): Likewise.
(cp_parser_omp_clause_map): Likewise. Reset num_commas after the
diagnostics.
(cp_parser_omp_clause_proc_bind): Provide fixit hints for
-Wdeprecated-openmp diagnostics.
(cp_parser_omp_all_clauses): Move -Wdeprecated-openmp diagnostics
for to vs. enter here, add fixit hints for it.
(cp_parser_omp_master):Add MASTER_LOC argument. Provide fixit hints
for -Wdeprecated-openmp diagnostics.
(cp_parser_omp_parallel): Adjust cp_parser_omp_master caller.
(cp_parser_omp_declare_target): Don't emit -Wdeprecated-openmp
warning for to vs. enter here.
(cp_parser_omp_metadirective): Provide fixit hints for
-Wdeprecated-openmp diagnostics.
(cp_parser_omp_construct): Adjust cp_parser_omp_master caller.
2025-12-12 Nathaniel Shead <nathanieloshead@gmail.com>
* method.cc (constructible_expr): Emit diagnostics for abstract
types.
* typeck2.cc (abstract_virtuals_error): Use more accurate
wording for default case, and remove extranneous whitespace
in favour of a nesting level.
2025-12-12 Chung-Lin Tang <cltang@baylibre.com>
Tobias Burnus <tburnus@baylibre.com>
Andrew Stubbs <ams@baylibre.com>
* parser.cc (cp_parser_omp_clause_uses_allocators): New function.
(cp_parser_omp_clause_name, cp_parser_omp_all_clauses,
OMP_TARGET_CLAUSE_MASK): Handle uses_allocators.
* semantics.cc (finish_omp_clauses): Likewise.
* pt.cc (tsubst_omp_clauses): Likewise.
2025-12-11 Jakub Jelinek <jakub@redhat.com>
PR testsuite/123098
* parser.cc (cp_parser_omp_clause_reduction): Only emit
-Wdeprecated-openmp warning for CPP_MINUS if is_omp.
2025-12-11 Jakub Jelinek <jakub@redhat.com>
* parser.cc (cp_parser_omp_clause_reduction,
cp_parser_omp_clause_linear, cp_parser_omp_clause_depend,
cp_parser_omp_clause_map, cp_parser_omp_clause_proc_bind,
cp_parser_omp_master, cp_parser_omp_declare_target,
cp_parser_omp_metadirective): Formatting fixes.
2025-12-11 supers1ngular <supers1ngular@baylibre.com>
* parser.cc (cp_parser_omp_clause_reduction): Deprecate '-'
operator.
(cp_parser_omp_clause_linear): Deprecate modifiers with parens.
(cp_parser_omp_clause_depend): Deprecate sink and source.
(cp_parser_omp_clause_map): Map clause modifiers
comma-separated.
(cp_parser_omp_declare_target): Deprecate synonymous omp declare
target for omp begin declare target. Deprecate to clause.
(cp_parser_omp_metadirective): Deprecate default clause on
metadirectives.
2025-12-11 supers1ngular <supers1ngular@baylibre.com>
* parser.cc (cp_parser_postfix_expression): Whitespace.
(cp_parser_builtin_c23_va_start): Ditto.
(cp_parser_omp_clause_proc_bind): Deprecate master affinity.
(cp_parser_omp_master): Deprecate master construct.
2025-12-10 Jason Merrill <jason@redhat.com>
* module.cc (maybe_translate_include): Suggest <bits/stdc++.h>
as an alternate for importable standard library headers.
(importable_headers, is_importable_header): New.
2025-12-09 Nathaniel Shead <nathanieloshead@gmail.com>
Revert:
2025-12-09 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122819
* decl.cc (start_preparsed_function): Use
DECL_TEMPLOID_INSTANTIATION instead of
DECL_TEMPLATE_INSTANTIATION to check vague linkage.
* decl2.cc (vague_linkage_p): Likewise.
(c_parse_final_cleanups): Simplify condition.
* semantics.cc (expand_or_defer_fn_1): Also check for temploid
friend functions.
2025-12-09 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122819
* decl.cc (start_preparsed_function): Use
DECL_TEMPLOID_INSTANTIATION instead of
DECL_TEMPLATE_INSTANTIATION to check vague linkage.
* decl2.cc (vague_linkage_p): Likewise.
(c_parse_final_cleanups): Simplify condition.
* semantics.cc (expand_or_defer_fn_1): Also check for temploid
friend functions.
2025-12-08 Egas Ribeiro <egas.g.ribeiro@tecnico.ulisboa.pt>
* pt.cc (tsubst_expr): Add TARGET_EXPR case with explanatory
comment and gcc_unreachable.
2025-12-08 Egas Ribeiro <egas.g.ribeiro@tecnico.ulisboa.pt>
PR c++/119343
* pt.cc (resolve_nondeduced_context): Remove mark_used call.
2025-12-06 Jakub Jelinek <jakub@redhat.com>
* decl2.cc (is_late_template_attribute): Call lookup_attribute_spec
on TREE_PURPOSE (attr) rather than name. Only call
attribute_takes_identifier_p if get_attribute_namespace (attr) is
gnu_identifier.
* pt.cc (tsubst_attribute): Only call attribute_takes_identifier_p
if get_attribute_namespace (t) is gnu_identifier.
2025-12-05 Tobias Burnus <tburnus@baylibre.com>
* pt.cc (tsubst_omp_clauses): Handle OMP_CLAUSE_DYN_GROUPPRIVATE.
* semantics.cc (finish_omp_clauses): Likewise.
* parser.cc (cp_parser_omp_clause_dyn_groupprivate): New.
(cp_parser_omp_clause_name, cp_parser_omp_all_clauses):
Handle 'dyn_groupprivate' clause.
(OMP_TARGET_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DYN_GROUPPRIVATE;
sort clauses alphabetically.
2025-12-03 Jason Merrill <jason@redhat.com>
* pt.cc (dependent_implict_conv_p): Rename to...
(dependent_implicit_conv_p): ...this.
2025-12-02 Jakub Jelinek <jakub@redhat.com>
PR c++/122860
* decl.cc (make_rtl_for_nonlocal_decl): Diagnose taking address
of a hard register decl in its initializer.
(cp_finish_decl): Likewise.
2025-12-02 Jakub Jelinek <jakub@redhat.com>
PR c++/122836
* decl.cc (check_array_designated_initializer): Change ce->index to
error_mark_node after emitting an error for it.
2025-12-02 Jason Merrill <jason@redhat.com>
PR c++/122171
PR c++/112632
* pt.cc (dependent_implict_conv_p): Split out...
(convert_template_argument): ...from here.
(tsubst_expr) [IMPLICIT_CONV_EXPR]: Use it.
(do_auto_deduction): Call mark_single_function.
2025-12-02 Nathaniel Shead <nathanieloshead@gmail.com>
* module.cc (module_state::write_using_directives): Correct
condition.
2025-12-01 Nathaniel Shead <nathanieloshead@gmail.com>
* module.cc (trees_out::lang_decl_vals): Stream DECL_CHAIN for
decl_specialization_friend_p functions.
(trees_in::lang_decl_vals): Likewise.
2025-12-01 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122915
* module.cc (module_state::write_using_directives): Don't emit
imported using-directives.
(module_state::read_using_directives): Rename
add_using_namespace to add_imported_using_namespace.
* name-lookup.cc (add_using_namespace): Handle imported
using-directives.
(add_imported_using_namespace): Rename to match new
functionality.
* name-lookup.h (add_using_namespace): Rename to...
(add_imported_using_namespace): ...this.
2025-12-01 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119864
PR c++/122939
* module.cc (trees_out::write_function_def): Don't crash on
OMP used-defined type reduction function definitions.
2025-12-01 Jakub Jelinek <jakub@redhat.com>
PR c++/122905
* decl.cc (enum_with_enumerator_for_linkage_p): Only return true
for namespace scope types.
2025-11-30 Jakub Jelinek <jakub@redhat.com>
PR c++/122465
* parser.cc (cp_parser_simple_declaration): Adjust function comment.
Set *maybe_range_for_decl to error_mark_node instead of keeping it
NULL_TREE in error cases or when followed by CPP_COLON.
2025-11-30 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119864
* module.cc (trees_in::read_function_def): Don't call
post_process on OpenMP UDT reductions.
* parser.cc (cp_parser_omp_declare_reduction): Call push_decl
for block_scope, even when processing_template_decl.
2025-11-29 Eczbek <eczbek.void@gmail.com>
Jason Merrill <jason@redhat.com>
PR c++/116952
* parser.cc (cp_parser_lambda_expression): Revert
r11-8166-ge1666ebd9ad31d change prohibiting lambda in non-type
parameter.
2025-11-29 Jakub Jelinek <jakub@redhat.com>
PR c++/122758
* decl.cc (pop_labels): Don't call adjust_backward_gotos if
processing_template_decl.
(decl_instrument_init_bypass_p): Always return false if
processing_template_decl.
(check_goto_1): Don't push anything to direct_goto vector
if processing_template_decl.
2025-11-28 Jakub Jelinek <jakub@redhat.com>
PR c++/119969
* cp-objcp-common.cc (cxx_get_alias_set): Remove special cases
for TYPE_PTRMEMFUNC_P and INDIRECT_TYPE_P for TYPE_PTRMEMFUNC_P.
2025-11-26 Marek Polacek <polacek@redhat.com>
PR c++/121325
* pt.cc (tsubst_tree_vec): New.
(tsubst_pack_index): Call it.
2025-11-25 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122699
* name-lookup.h (expose_existing_namespace): Declare.
* name-lookup.cc (expose_existing_namespace): New function.
(push_namespace): Call it.
* pt.cc (tsubst_friend_function): Likewise.
2025-11-25 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122789
* module.cc (trees_out::core_vals): Treat REQUIRES_EXPR
specially and stream the chained decls of its first operand.
(trees_in::core_vals): Likewise.
(trees_out::tree_node): Check the PARM_DECLs we see are what we
expect.
2025-11-25 Jason Merrill <jason@redhat.com>
* lang-specs.h: Add @c++-system-module.
* g++spec.cc (lang_specific_driver): Handle --compile-std-module.
2025-11-24 Marek Polacek <polacek@redhat.com>
PR c++/119964
* cp-tree.h (maybe_delete_defaulted_fn): Remove.
* method.cc (maybe_delete_defaulted_fn): Make static. Refactor. If FN
is not explicitly defaulted on its first declaration, emit an error.
2025-11-22 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122636
* module.cc (instantiating_tu_local_entity): Don't check
importingness of originating module decl; also check templates.
2025-11-22 Nathaniel Shead <nathanieloshead@gmail.com>
* constraint.cc (diagnose_trait_expr):
<case CPTK_IS_POINTER_INTERCONVERTIBLE_BASE_OF>: Explain failure
with more detail.
* cp-tree.h (pointer_interconvertible_base_of_p): Add explain
parameter.
* semantics.cc (pointer_interconvertible_base_of_p): Explain why
not.
2025-11-22 Nathaniel Shead <nathanieloshead@gmail.com>
* constraint.cc (diagnose_trait_expr)
<case CPTK_IS_LAYOUT_COMPATIBLE>: Explain why not.
* cp-tree.h (layout_compatible_type_p): Add explain parameter.
* typeck.cc (layout_compatible_type_p): Add explanations when
returning false.
2025-11-22 Nathaniel Shead <nathanieloshead@gmail.com>
* constraint.cc (diagnose_trait_expr)
<case CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS>: Explain failure with
more detail.
* cp-tree.h (type_has_unique_obj_representations): Add explain
parameter.
* tree.cc (record_has_unique_obj_representations): Explain when
returning false.
(type_has_unique_obj_representations): Likewise.
2025-11-22 Nathaniel Shead <nathanieloshead@gmail.com>
* method.cc (destructible_expr): Add explanation when type is
neither class nor scalar.
2025-11-22 Nathaniel Shead <nathanieloshead@gmail.com>
* constraint.cc (diagnose_trait_expr): Use t2's location for
is_base_of, is_pointer_interconvertible_base_of, and
is_virtual_base_of.
2025-11-22 Nathaniel Shead <nathanieloshead@gmail.com>
* constraint.cc (diagnose_trait_expr): Reset input_location.
2025-11-22 Nathaniel Shead <nathanieloshead@gmail.com>
* typeck.cc (layout_compatible_type_p): Do not check TYPE_SIZE.
2025-11-22 Sandra Loosemore <sloosemore@baylibre.com>
Julian Brown <julian@codesourcery.com>
waffl3x <waffl3x@baylibre.com>
* cp-tree.h (struct cp_omp_declare_variant_attr): New.
(struct saved_scope): Add omp_declare_variant_attribute field.
* decl.cc (omp_declare_variant_finalize_one): Add logic to inject
"this" parameter for method calls.
* parser.cc (cp_parser_skip_to_pragma_omp_end_declare_variant): New.
(cp_parser_translation_unit): Handle leftover "begin declare variant"
functions.
(omp_start_variant_function): New.
(omp_finish_variant_function): New.
(omp_maybe_record_variant_base): New.
(cp_parser_init_declarator): Handle variant functions.
(cp_parser_class_specifier): Handle deferred lookup of base functions
when the entire class has been seen.
(cp_parser_member_declaration): Handle variant functions.
(cp_finish_omp_declare_variant): Merge context selectors if in
a "begin declare variant" block.
(cp_parser_omp_begin): Match "omp begin declare variant". Adjust
error messages.
(cp_parser_omp_end): Match "omp end declare variant".
* parser.h (struct omp_begin_declare_variant_map_entry): New.
(struct cp_parser): Add omp_begin_declare_variant_map field.
* semantics.cc (finish_translation_unit): Detect unmatched
"omp begin declare variant".
2025-11-22 Jakub Jelinek <jakub@redhat.com>
PR c++/122788
* pt.cc (finish_expansion_stmt): Or in TREE_USED and DECL_READ_P
flags from range_decl to decl or from corresponding structured binding
to this_decl.
2025-11-22 Jakub Jelinek <jakub@redhat.com>
PR c++/122185
* cp-gimplify.cc (cp_fold) <case CALL_EXPR>: For -ffold-simple-inlines
restore check that both types are INDIRECT_TYPE_P, except for
"to_underlying" check that r has ENUMERAL_TYPE and x has
INTEGRAL_TYPE_P.
2025-11-22 Daniele Sahebi <daniele@mkryss.me>
Jakub Jelinek <jakub@redhat.com>
PR c++/122658
* call.cc (build_over_call): Don't call build_cplus_new in
template declarations.
2025-11-21 Marek Polacek <polacek@redhat.com>
PR c++/120529
* call.cc (ref_conv_binds_to_temporary): Don't ignore access control.
2025-11-21 Jakub Jelinek <jakub@redhat.com>
PR c++/121445
* constexpr.cc (build_data_member_initialization): Just return
false if member is COMPONENT_REF of COMPONENT_REF with
VAR_P get_base_address.
2025-11-20 Jakub Jelinek <jakub@redhat.com>
PR c++/120876
* pt.cc (tsubst_baselink): Move maybe_incomplete handling after
!baselink handling.
2025-11-20 Jakub Jelinek <jakub@redhat.com>
PR c++/122540
* decl.cc (start_enum): When setting ENUM_UNDERLYING_TYPE
to integer_type_node during error recovery, also call copy_type_enum.
2025-11-19 Marek Polacek <polacek@redhat.com>
PR c++/119580
* pt.cc (tsubst_baselink): Return error_mark_node if
tsubst_template_args returned error_mark_node.
2025-11-19 Patrick Palka <ppalka@redhat.com>
PR c++/122668
PR c++/114764
* pt.cc (dependentish_scope_p): Return true for the current
instantiation from within an immediately parsed noexcept-spec.
2025-11-19 Jakub Jelinek <jakub@redhat.com>
* parser.cc (cp_parser_conversion_type_id): Implement C++ DR1670
- auto as conversion-type-id. Pedwarn on conversion operators
with placeholder return type.
2025-11-18 Jonathan Wakely <jwakely@redhat.com>
PR c++/122677
* module.cc (create_dirs): Skip past any leading slashes.
2025-11-16 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122625
* module.cc (trees_in::read_var_def): Also track class-scope
primary template specialisations.
2025-11-15 Jason Merrill <jason@redhat.com>
* module.cc (trees_out::write_function_def): Check flag consistency.
* pt.cc (mark_decl_instantiated): Ignore TREE_ASM_WRITTEN.
2025-11-15 Jason Merrill <jason@redhat.com>
* module.cc (module_state::read_config): Add complain parm.
(module_state::open_slurp): Split out...
(module_state::do_import): ...from here.
(module_state::read_initial): Move begin call to open_slurp.
(module_state::check_importable): New.
(maybe_translate_include): Call it.
2025-11-15 Jason Merrill <jason@redhat.com>
* module.cc (transfer_defining_module): Dereference
pointer into hash_map before possible insertion.
2025-11-15 Jason Merrill <jason@redhat.com>
* name-lookup.cc (do_nonmember_using_decl): Handle hidden better.
2025-11-15 Jason Merrill <jason@redhat.com>
* decl.cc (grokfndecl): Set DECL_CHAIN of a friend f<>.
* module.cc (trees_out::get_merge_kind): Give it MK_local_friend.
(trees_out::decl_container): Its container is the befriender.
(trees_out::key_mergeable): Expand comment.
* cp-tree.h (decl_specialization_friend_p): New.
* friend.cc (do_friend): Use it.
* pt.cc (tsubst_friend_function): Likewise.
2025-11-13 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122551
* cp-tree.h (transfer_defining_module): Declare.
* decl.cc (duplicate_decls): Call it for all decls.
Remove now unnecessary equivalent logic for templates.
* module.cc (mangle_module): Add assertion.
(transfer_defining_module): New function.
2025-11-11 Jason Merrill <jason@redhat.com>
* name-lookup.cc (name_lookup::adl_namespace_fns): Also skip hidden
in the module case.
2025-11-11 Jason Merrill <jason@redhat.com>
* module.cc (module_state::read_cluster): Use set_cfun.
(post_load_processing): Likewise.
2025-11-10 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122628
* module.cc (instantiating_tu_local_entity): Add missing
STRIP_TEMPLATEs.
2025-11-10 Nathaniel Shead <nathanieloshead@gmail.com>
* pt.cc (tsubst_friend_function): Mark all parent namespaces as
purview if needed.
2025-11-10 Tejas Belagod <tejas.belagod@arm.com>
* typeck.cc (cp_build_binary_op): Likewise.
* call.cc (build_conditional_expr): Support vector booleans.
* cvt.cc (ocp_convert): Call target hook to resolve conversion
between standard and non-standard booleans.
2025-11-10 Jakub Jelinek <jakub@redhat.com>
PR c++/119064
* cp-tree.h (struct lang_type): Revert 2025-07-11 changes.
(CLASSTYPE_TRIVIALLY_RELOCATABLE_BIT): Remove.
(CLASSTYPE_TRIVIALLY_RELOCATABLE_COMPUTED): Remove.
(CLASSTYPE_REPLACEABLE_BIT): Remove.
(CLASSTYPE_REPLACEABLE_COMPUTED): Remove.
(enum virt_specifier): Revert 2025-07-11 changes.
(trivially_relocatable_type_p): Remove.
(replaceable_type_p): Remove.
* cp-trait.def (IS_NOTHROW_RELOCATABLE): Remove.
(IS_REPLACEABLE): Remove.
(IS_TRIVIALLY_RELOCATABLE): Remove.
* parser.cc (cp_parser_class_specifier, cp_parser_class_head):
Revert 2025-07-11 changes.
* pt.cc (instantiate_class_template): Likewise.
* semantics.cc (trait_expr_value): Likewise.
(finish_trait_expr): Likewise.
* tree.cc (default_movable_type_p): Remove.
(union_with_no_declared_special_member_fns): Remove.
(trivially_relocatable_type_p): Remove.
(replaceable_type_p): Remove.
* constraint.cc (diagnose_trait_expr): Revert 2025-07-11 changes.
* module.cc (trees_out::lang_type_bools): Revert part of
2025-07-26 changes related to trivial relocatability.
(trees_in::lang_type_bools): Likewise.
* lex.cc (cxx_init): Don't call cpp_warn on
trivially_relocatable_if_eligible and replaceable_if_eligible.
2025-11-10 Jakub Jelinek <jakub@redhat.com>
* lex.cc (cxx_init): For C++26 call cpp_warn on "indeterminate".
2025-11-05 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/121574
* cp-tree.h (instantiating_tu_local_entity): Declare.
* module.cc (is_tu_local_entity): Extract from depset::hash.
(is_tu_local_value): Likewise.
(has_tu_local_tmpl_arg): Likewise.
(depset::hash::is_tu_local_entity): Remove.
(depset::hash::has_tu_local_tmpl_arg): Remove.
(depset::hash::is_tu_local_value): Remove.
(instantiating_tu_local_entity): New function.
(depset::hash::add_binding_entity): No longer go through
depset::hash to check is_tu_local_entity.
* pt.cc (complain_about_tu_local_entity): Remove.
(tsubst): Use instantiating_tu_local_entity.
(tsubst_expr): Likewise.
2025-11-05 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/121574
* module.cc (depset::disc_bits): Replace 'DB_REFS_TU_LOCAL_BIT'
and 'DB_EXPOSURE_BIT' with new four flags
'DB_{REF,EXPOSE}_{GLOBAL,PURVIEW}_BIT'.
(depset::is_tu_local): Support checking either for only purview
TU-local entities or any entity described TU-local by standard.
(depset::refs_tu_local): Likewise.
(depset::is_exposure): Likewise.
(depset::hash::make_dependency): A constant initialized to a
TU-local variable is always considered a purview exposure.
(is_exposure_of_member_type): Adjust sanity checks to handle if
we ever relax requirements for TU-local types.
(depset::hash::add_dependency): Differentiate referencing
purview or GMF TU-local entities.
(depset::hash::diagnose_bad_internal_ref): New function.
(depset::hash::diagnose_template_names_tu_local): New function.
(depset::hash::finalize_dependencies): Handle new warnings that
might be needed for GMF TU-local entities.
2025-11-04 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122253
* decl2.cc (min_vis_expr_r): Don't mark no-linkage declarations
as VISIBILITY_ANON.
2025-11-04 David Malcolm <dmalcolm@redhat.com>
* parser.cc (enum non_integral_constant): Fix typo
"an decrement" -> "a decrement" in comment.
(cp_parser_non_integral_constant_expression): Likewise in error
message.
2025-11-03 Jason Merrill <jason@redhat.com>
* name-lookup.cc (name_lookup::adl_class_fns): Include all
namespace-scope friends.
2025-11-03 Jason Merrill <jason@redhat.com>
* name-lookup.cc (pushdecl): Discard built-in sooner.
2025-11-03 Jason Merrill <jason@redhat.com>
* module.cc (trees_in::decl_value): Don't add an instantiation to
CLASSTYPE_MEMBER_VEC.
2025-11-03 Jason Merrill <jason@redhat.com>
* module.cc (module_state::write_namespaces): Handle
TREE_DEPRECATED.
(module_state::read_namespaces): Likewise.
2025-11-02 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122421
* module.cc (trees_in::read_var_def): Don't handle class-scope
variables anymore.
(trees_in::read_class_def): Handle them here instead.
2025-11-01 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122381
* module.cc (trees_out::core_vals): Write BASELINK_OPTYPE (aka
TREE_CHAIN).
(trees_in::core_vals): Read it.
2025-10-30 Jakub Jelinek <jakub@redhat.com>
* std-name-hint.gperf: Remove duplicate entries for ispanstream
and istringstream.
* std-name-hint.h: Regenerate.
2025-10-28 Marek Polacek <polacek@redhat.com>
Jakub Jelinek <jakub@redhat.com>
* decl.cc (finish_enum_value_list): Use fold_convert instead of
copy_node.
2025-10-27 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122422
* decl.cc (maybe_deduce_size_from_array_init): Propagate type to
corresponding TEMPLATE_DECL.
2025-10-27 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122310
* module.cc (get_keyed_decl_scope): New function.
(trees_out::get_merge_kind): Use it.
(trees_out::key_mergeable): Use it.
(maybe_key_decl): Key to the containing type for all members.
2025-10-27 Paul-Antoine Arras <parras@baylibre.com>
PR c++/122378
* parser.cc (cp_parser_label_declaration): Mangle label declaration in a
metadirective region.
2025-10-21 Jakub Jelinek <jakub@redhat.com>
* cp-tree.h: Implement C++23 P2674R1 - A trait for implicit lifetime
types.
(implicit_lifetime_type_p): Declare.
* tree.cc (implicit_lifetime_type_p): New function.
* cp-trait.def (IS_IMPLICIT_LIFETIME): New unary trait.
* semantics.cc (trait_expr_value): Handle CPTK_IS_IMPLICIT_LIFETIME.
(finish_trait_expr): Likewise.
* constraint.cc (diagnose_trait_expr): Likewise.
2025-10-21 Paul-Antoine Arras <parras@baylibre.com>
PR c/120180
PR fortran/122306
* parser.cc (cp_parser_omp_metadirective): Return early if only one
selector matches and it resolves to 'omp nothing'.
(cp_parser_omp_error): Reject 'error at(execution)' in intervening code.
(cp_parser_pragma): Accept a subset of non-executable OpenMP directives
as intervening code.
2025-10-21 Tobias Burnus <tburnus@baylibre.com>
* parser.cc (cp_parser_omp_assumption_clauses): Switch to
'unknown' not 'invalid' directive name for end directives.
2025-10-18 Iain Sandoe <iain@sandoe.co.uk>
PR c++/119060
* cxxapi-data.csv: Add observable_checkpoint to <utility>.
* std-name-hint.gperf: Add observable_checkpoint to <utility>.
* std-name-hint.h: Regenerate.
2025-10-18 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122279
* module.cc (depset::hash::add_namespace_entities): Seed any
purview using-decls.
(module_state::write_using_directives): Stream if the udir was
exported or not.
(module_state::read_using_directives): Add the using-directive
if it's either exported or part of this module.
2025-10-14 Patrick Palka <ppalka@redhat.com>
PR c++/122192
* parser.cc (cp_parser_mem_initializer_id): Pass class_type
instead of typename_type to cp_parser_class_name in the
nested-name-specifier case.
2025-10-13 Jakub Jelinek <jakub@redhat.com>
PR c++/122228
* decl.cc (cp_make_fname_decl): When not using fname_as_decl,
attempt to translate name into ordinary literal encoding.
2025-10-13 Jakub Jelinek <jakub@redhat.com>
* decl.cc (omp_declare_variant_finalize_one): If !nbase_args
and TREE_TYPE (decl) has TYPE_NO_NAMED_ARGS_STDARG_P bit set
and varg is NULL, temporarily set TYPE_NO_NAMED_ARGS_STDARG_P
on TREE_TYPE (variant).
2025-10-12 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122163
* expr.cc (mark_use): When processing a reference, always return
an lvalue reference when !rvalue_p.
2025-10-10 Patrick Palka <ppalka@redhat.com>
PR c++/122192
* decl.cc (make_typename_type): Document base-specifier as
another type-only lookup case.
* parser.cc (cp_parser_class_name): Propagate tag_type to
make_typename_type instead of hardcoding typename_type.
(cp_parser_base_specifier): Pass class_type instead of
typename_type as tag_type to cp_parser_class_name.
2025-10-09 Jakub Jelinek <jakub@redhat.com>
* cp-tree.h (cp_build_function_type): Declare.
* lex.cc: Implement va_start changes from P3348R4 - C++26 should
refer to C23 not C17 paper.
(init_reswords): Set D_CXX26 in mask for C++23 and older.
* parser.cc (cp_parser_primary_expression): Handle RID_C23_VA_START.
(cp_parser_builtin_c23_va_start): New function.
* cp-objcp-common.cc (names_builtin_p): Likewise.
* decl.cc (grokfndecl, check_function_type): Pass
TYPE_NO_NAMED_ARGS_STDARG_P as last arg to build_function_type.
(grokdeclarator, static_fn_type): Use cp_build_function_type instead
of build_function_type.
* typeck.cc (merge_types): Likewise.
(structural_comptypes): Return false for TYPE_NO_NAMED_ARGS_STDARG_P
differences.
* lambda.cc (maybe_add_lambda_conv_op): Use cp_build_function_type
instead of build_function_type.
* tree.cc (cp_build_function_type): New function.
(strip_typedefs): Pass TYPE_NO_NAMED_ARGS_STDARG_P as last arg to
build_function_type.
* name-lookup.cc (push_local_extern_decl_alias): Likewise.
* module.cc (trees_in::tree_node): Use cp_build_function_type instead
of build_function_type.
* pt.cc (copy_default_args_to_explicit_spec,
rebuild_function_or_method_type, build_deduction_guide): Likewise.
(alias_ctad_tweaks): Pass TYPE_NO_NAMED_ARGS_STDARG_P as last arg to
build_function_type.
* decl2.cc (change_return_type, cp_reconstruct_complex_type):
Likewise.
2025-10-09 Egas Ribeiro <egas.g.ribeiro@tecnico.ulisboa.pt>
PR c++/116477
* semantics.cc (finish_call_expr): Move concept_check_p diagnostic
before processing_template_decl check to catch errors earlier.
2025-10-09 David Malcolm <dmalcolm@redhat.com>
* error.cc: Define INCLUDE_VECTOR.
2025-10-08 Jason Merrill <jason@redhat.com>
* init.cc (build_new_1): Also clobber for non-placement new.
Only loop clobber in constexpr.
* expr.cc (wrap_with_if_consteval): New.
* cp-tree.h (wrap_with_if_consteval): Declare.
2025-10-07 Jason Merrill <jason@redhat.com>
* init.cc (build_new_1): Clobber a constant-bound array as a whole.
2025-10-07 Jonathan Wakely <jwakely@redhat.com>
* module.cc (trees_out::lang_vals): Fix spelling in comment.
2025-10-05 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122053
* name-lookup.cc (pushtag): Load any imported definition of type
before calling pushdecl.
2025-10-05 Nathaniel Shead <nathanieloshead@gmail.com>
* name-lookup.cc (check_module_override): Remove check for
TREE_PUBLIC when checking mergeable entities.
2025-10-04 Jakub Jelinek <jakub@redhat.com>
PR c++/114457
* cp-tree.h: Implement C++26 P2795R5 - Erroneous behavior for
uninitialized reads.
(IF_STMT_VACUOUS_INIT_P): Define.
(check_goto): Change argument type from tree to tree *.
* call.cc (build_over_call): Add indeterminate attribute to
TARGET_EXPR slots for indeterminate parameters.
* constexpr.cc (cxx_eval_internal_function): Handle IFN_DEFERRED_INIT.
(cxx_eval_store_expression): Temporarily work around PR121965 bug.
* cp-gimplify.cc (genericize_if_stmt): Handle IF_STMT_VACUOUS_INIT_P.
(maybe_emit_clobber_object_begin): New function.
(cp_gimplify_expr): Call it for DECL_EXPRs and TARGET_EXPRs with
void type non-NULL TARGET_EXPR_INITIAL.
* decl.cc (struct named_label_fwd_direct_goto,
struct named_label_bck_direct_goto): New types.
(struct named_label_use_entry): Add direct_goto member. Formatting
fix.
(struct named_label_entry): Add direct_goto member. Turn bool members
into bool : 1. Add has_bad_decls bitfield.
(adjust_backward_gotos): New function.
(pop_labels): For flag_auto_var_init > AUTO_INIT_UNINITIALIZED
call adjust_backward_gotos if needed.
(poplevel_named_label_1): For decl_jump_unsafe also set
ent->has_bad_decls, and for decl_instrument_init_bypass_p decls
push them into ent->bad_decls vector too.
(duplicate_decls): Complain if indeterminate attribute on function
parameter isn't present on the first function declaration.
(decl_instrument_init_bypass_p): New function.
(build_deferred_init_call): Likewise.
(maybe_add_deferred_init_calls): Likewise.
(adjust_backward_goto): Likewise.
(check_previous_goto_1): Add direct_goto and case_label arguments.
For decl_instrument_init_bypass_p decls seen if
direct_goto || case_label move case label if needed, call
maybe_add_deferred_init_calls and adjust GOTO_EXPR operands remembered
in direct_goto. Change return type from bool to int, return 0 on
error, 1 for success with no need to adjust vacuous inits and 2 for
success with need to adjust those.
(check_previous_goto): Adjust check_previous_goto_1 call, vec_free
direct_goto vector.
(check_switch_goto): Add case_label argument, adjust
check_previous_goto_1 call. Change return type from bool to int.
(check_goto_1): Remove computed argument, add declp argument. Don't
reuse previous ent->uses if
ent->binding_level != current_binding_level. Push declp into
direct_goto vectors if needed.
(check_goto): Remove decl argument, add declp argument. Adjust
check_goto_1 calls.
(finish_case_label): Call check_switch_goto up to twice, first time
to detect errors and find out if second call will be needed, and
after c_add_case_label second time if needed. In the first case
pass NULL_TREE as new argument to it, in the second case r.
(start_preparsed_function): Don't emit CLOBBER_OBJECT_BEGIN here
for -flifetime-dse=2, instead add "clobber *this" attribute to
current_class_ptr.
* parser.cc (cp_parser_asm_label_list): Call check_goto only
after the TREE_LIST is created and pass address of its TREE_VALUE to
it instead of the label.
* semantics.cc (finish_goto_stmt): Call check_goto only after
build_stmt has been called and pass it address of its first operand
rather than destination.
* tree.cc (handle_indeterminate_attribute): New function.
(cxx_gnu_attributes): Add entry for indeterminate attribute.
2025-10-04 Jason Merrill <jason@redhat.com>
PR c++/122127
PR c++/112632
* pt.cc (convert_template_argument): Don't add redundant
IMPLICIT_CONV_EXPR.
2025-10-04 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/117658
* cp-tree.h (TU_LOCAL_ENTITY_NAME): Clarify meaning.
* module.cc (depset::entity_kind): New enumerator, assert that
we have enough bits reserved.
(depset::disc_bits): Assert the discriminator has enough bits.
(depset::entity_kind_name): Add 'tu-local' case, assert we
have an entry for all relevant entry_kinds.
(name_for_tu_local_decl): New function.
(trees_out::tree_node): Use it.
(depset::hash::make_dependency): Validate EK_TU_LOCAL.
(depset::hash::add_binding_entity): Generate bindings for
internal purview functions.
(enum ct_bind_flags): New enum for TU-local decls.
(depset::hash::find_dependencies): Handle EK_TU_LOCAL entities.
(binding_cmp): Likewise.
(sort_cluster): Likewise.
(module_state::write_cluster): Likewise.
(module_state::read_cluster): Likewise.
* name-lookup.cc (append_imported_binding_slot): Propagate
internal decl list when growing binding vector.
(name_lookup::adl_namespace_fns): Diagnose if naming a TU-local
entity from a different TU.
(set_module_binding): Include any internal decls in binding.
* name-lookup.h (struct module_tree_map_traits): New type.
(struct tree_binding_vec): Add member 'internal_decls'.
(BINDING_VECTOR_INTERNAL_DECLS): New getter.
(MODULE_BINDING_INTERNAL_DECLS_P): New flag.
(set_module_binding): Add parameter.
2025-10-03 Egas Ribeiro <egas.g.ribeiro@tecnico.ulisboa.pt>
PR c++/122112
* parser.cc (cp_parser_parameter_declaration_clause): Don't
enable auto_is_implicit_function_template_parm_p when entering
class scope.
2025-10-01 Iain Sandoe <iain@sandoe.co.uk>
* constexpr.cc (cxx_eval_constant_expression): Use revised
interfaces to determine if contracts are ignored and, if not,
whether they are evaluated.
* contracts.h (contract_ignored_p, contract_evaluated_p): New.
2025-10-01 Jan Hubicka <hubicka@ucw.cz>
* Make-lang.in: Add c++_FDAS
(create_fdas_for_cc1plus): Be sure that build fails if create_gcov fails.
2025-09-27 Jason Merrill <jason@redhat.com>
PR c++/112632
* pt.cc (convert_template_argument): Also force IMPLICIT_CONV_EXPR
if the argument is value-dependent.
2025-09-27 Jason Merrill <jason@redhat.com>
PR c++/122048
* pt.cc (tsubst_expr): Don't use a lambda current_class_ptr.
2025-09-25 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122015
PR c++/122019
* module.cc (trees_in::install_entity): Remove incorrect
assertion.
2025-09-24 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122019
* module.cc (trees_in::install_entity): Don't be affected by
global language linkage state.
(trees_in::is_matching_decl): Check mismatching language linkage
for variables too.
(module_may_redeclare): Report the correct module name for
partitions and implementation units.
2025-09-23 Alfie Richards <alfie.richards@arm.com>
* class.cc (resolve_address_of_overloaded_function): Updated to use
dijoint_versions_decls instead of common_function_version hook.
* decl.cc (decls_match): Refacture to use disjoint_version_decls and
to pass through conflicting_version argument.
(maybe_version_functions): Updated to use
disjoint_version_decls instead of common_function_version hook.
(duplicate_decls): Add logic to handle conflicting unmergable decls
and improve diagnostics for conflicting versions.
* decl2.cc (check_classfn): Updated to use
disjoint_version_decls instead of common_function_version hook.
2025-09-23 Alfie Richards <alfie.richards@arm.com>
* cxx-pretty-print.h (pp_cxx_function_target_version): New macro.
(pp_cxx_function_target_clones): Ditto.
(pp_cxx_maybe_whitespace): Ditto.
* error.cc (dump_function_decl): Add printing of target_clone and
target_version in decl diagnostics.
2025-09-23 Alfie Richards <alfie.richards@arm.com>
PR target/118313
* call.cc (add_candidates): Change to not resolve non-default versions
in target_version semantics.
* class.cc (resolve_address_of_overloaded_function): Ditto.
* cp-gimplify.cc (cp_genericize_r): Change logic to not apply for
target_version semantics.
* decl.cc (maybe_mark_function_versioned): Remove static.
* cp-tree.h (maybe_mark_function_versioned): New function.
* decl2.cc (cplus_decl_attributes ): Change to mark and therefore
mangle all target_version decls in target_version semantics.
* typeck.cc (cp_build_function_call_vec): Add error for calling
unresolvable non-default node in target_version semantics.
2025-09-23 Alfie Richards <alfie.richards@arm.com>
* decl.cc (maybe_mark_function_versioned): Change to insert function version
and therefore record assembler name.
2025-09-22 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/122015
* cp-tree.h (make_auto_pack): Declare.
* lambda.cc (lambda_capture_field_type): Use make_auto_pack to
ensure TYPE_CANONICAL is set correctly.
* pt.cc (make_auto_pack): New function.
2025-09-20 Patrick Palka <ppalka@redhat.com>
PR c++/121981
* pt.cc (any_template_parm_r) <case TEMPLATE_TYPE_PARM>:
Don't walk TREE_TYPE.
2025-09-20 Eczbek <eczbek.void@gmail.com>
PR c++/119048
* lambda.cc (compare_lambda_sig): Only skip first parameter for
object members.
2025-09-18 Jason Merrill <jason@redhat.com>
* constexpr.cc (cxx_eval_component_reference): Clarify diagnostic.
2025-09-18 Jason Merrill <jason@redhat.com>
* init.cc (build_new_1): Clobber classes.
2025-09-18 Jason Merrill <jason@redhat.com>
* constexpr.cc (get_or_insert_ctor_field): -2 means don't insert.
(cxx_eval_component_reference): Handle finding void_node.
(cxx_eval_store_expression): Don't represent initial clobber
unless we need to activate a union member.
(cxx_eval_statement_list): Don't ask for a void prvalue.
(cxx_eval_loop_expr): The expr is discarded-value.
(cxx_eval_constant_expression): A loose clobber is non-constant.
Handle getting void_node instead of a real result.
(potential_constant_expression_1): A local temp is
potentially-constant.
* init.cc (build_new_1): Don't clobber empty types or
in a template.
(build_vec_init): Fix clobber handling.
2025-09-18 Jason Merrill <jason@redhat.com>
* init.cc (build_new_1): Append alloc_node to checking COND_EXPR.
2025-09-17 David Malcolm <dmalcolm@redhat.com>
PR c++/121966
* call.cc (print_z_candidate): Consolidate instances of
auto_diagnostic_nesting_level into one, above the "inherited here"
message so that any such message is nested within the note,
and any messages emitted due to the switch on rejection_reason are
similarly nested within the note.
2025-09-17 David Malcolm <dmalcolm@redhat.com>
PR c++/121966
* call.cc (print_z_candidates): Copy the filtering logic on viable
candidates from the printing loop to the counting loop, so that
num_candidates matches the number of iterations of the latter
loop.
2025-09-15 Matthias Kretz <m.kretz@gsi.de>
* mangle.cc (write_real_cst): Replace 8 spaces with Tab.
2025-09-12 Patrick Palka <ppalka@redhat.com>
PR c++/121795
* pt.cc (unify) <case PACK_INDEX_TYPE>: New non-deduced context
case.
2025-09-12 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/121893
* name-lookup.cc (name_lookup::adl_namespace_fns): Unwrap the
STAT_HACK also when on_inst_path.
2025-09-11 H.J. Lu <hjl.tools@gmail.com>
PR c++/121889
* decl2.cc (cplus_decl_attributes): Don't upgrade TLS model if
TLS model isn't set yet.
2025-09-10 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/121859
* constraint.cc (maybe_diagnose_standard_trait): Check if expr
is non-null.
2025-09-10 Jakub Jelinek <jakub@redhat.com>
* mangle.cc (write_real_cst): Mangle Intel/Motorola extended
80-bit formats using 20 hex digits instead of 24 or 32.
2025-09-09 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/99682
PR c++/121808
* module.cc (class module_state): Add comment to 'parent'.
(module_state::check_not_purview): Rename to...
(module_state::check_circular_import): ...this. Only handle
interface dependencies, adjust diagnostic message.
(module_state::read_imports): Use new function. Pass location
of import as from_loc instead of the module location.
(module_state::do_import): Set module_p when importing the
primary interface for the current module.
(import_module): Split out check for imports in own unit.
Remove incorrect assertion.
(preprocess_module): Don't overwrite module-decl location with
later import.
2025-09-09 Nathaniel Shead <nathanieloshead@gmail.com>
* module.cc (this_module): New function.
(import_entity_module): Use it.
(trees_out::decl_node): Likewise.
(get_module): Likewise.
(module_state::check_not_purview): Likewise.
(module_state::read_imports): Likewise.
(module_state::read_using_directives): Likewise.
(module_state::read_initial): Likewise.
(get_import_bitmap): Likewise.
(module_may_redeclare): Likewise.
(direct_import): Likewise.
(declare_module): Likewise.
(name_pending_imports): Likewise.
(preprocess_module): Likewise.
(finish_module_processing): Likewise.
(late_finish_module): Likewise.
2025-09-09 Patrick Palka <ppalka@redhat.com>
PR c++/121779
* tree.cc (build_min_non_dep_op_overload): Handle comparison
operator expressions rewritten from a <=> that returns a
non-class type.
2025-09-09 Matthias Kretz <m.kretz@gsi.de>
PR c++/121801
* mangle.cc (write_real_cst): Handle 16-bit real and assert
that reals have 16 bits or a multiple of 32 bits.
2025-09-07 H.J. Lu <hjl.tools@gmail.com>
PR c++/107393
* decl.cc (grokvardecl): Set a tentative TLS model which will be
updated by cplus_decl_attributes later.
* decl2.cc (cplus_decl_attributes): Update TLS model with the
default TLS access model if the default TLS access model is
stronger.
* pt.cc (tsubst_decl): Set TLS model only after processing a
variable.
2025-09-06 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/121702
* module.cc (enum module_state_counts): New counter.
(depset::hash::add_namespace_entities): Seed using-directive
targets for later streaming.
(module_state::write_namespaces): Don't handle using-directives
here.
(module_state::read_namespaces): Likewise.
(module_state::write_using_directives): New function.
(module_state::read_using_directives): New function.
(module_state::write_counts): Log using-directives.
(module_state::read_counts): Likewise.
(module_state::write_begin): Stream using-directives.
(module_state::read_language): Read using-directives if
directly importing.
(module_state::direct_import): Update current TU import list
before calling read_language.
* name-lookup.cc (add_using_namespace): Fix lookup of previous
using-directives.
* parser.cc (cp_parser_import_declaration): Don't set
MK_EXPORTING when performing import_module.
2025-09-06 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/121705
PR c++/117658
* module.cc (depset::hash::make_dependency): Make bindings for
GM functions.
(depset::hash::add_binding_entity): Adjust comment.
(depset::hash::add_deduction_guides): Add log.
* ptree.cc (cxx_print_xnode): Handle friend functions where
TI_TEMPLATE is an OVERLOAD or IDENTIFIER.
2025-09-05 Jakub Jelinek <jakub@redhat.com>
* constexpr.cc (cxx_eval_cxa_builtin_fn): Add missing word separating
space into invalid_nargs diagnostics.
2025-09-04 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/117658
* cp-tree.h (get_originating_module): Adjust parameter names.
* module.cc (path_of_instantiation): Handle C++26 expansion
statements.
* name-lookup.cc (name_lookup::adl_namespace_fns): Handle
exported declarations attached to the same module of an
associated entity with the same innermost non-inline namespace,
and non-exported functions on the instantiation path.
(name_lookup::search_adl): Build mapping of namespace to modules
that associated entities are attached to; remove now-unneeded
instantiation path handling.
2025-09-04 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/121724
* name-lookup.cc (push_namespace): Mark inline namespace
contexts as purview if needed.
2025-09-03 Patrick Palka <ppalka@redhat.com>
PR c++/97740
* pt.cc (tsubst_expr) <case COMPONENT_REF>: Don't check access
when the given member is already a FIELD_DECL.
2025-09-02 Iain Sandoe <iain@sandoe.co.uk>
* constexpr.cc: Include contracts.h
* coroutines.cc: Likewise.
* cp-gimplify.cc: Likewise.
* decl.cc: Likewise.
* decl2.cc: Likewise.
* mangle.cc: Likewise.
* module.cc: Likewise.
* pt.cc: Likewise.
* search.cc: Likewise.
* semantics.cc: Likewise.
* contracts.cc (validate_contract_role, setup_default_contract_role,
add_contract_role, get_concrete_axiom_semantic,
get_default_contract_role): Make static.
* cp-tree.h (make_postcondition_variable, grok_contract,
finish_contract_condition, find_contract, set_decl_contracts,
get_contract_semantic, set_contract_semantic): Move to contracts.h.
* contracts.h (get_contract_role, add_contract_role,
validate_contract_role, setup_default_contract_role,
lookup_concrete_semantic, get_default_contract_role): Remove.
2025-08-29 Sirui Mu <msrlancern@gmail.com>
* typeck.cc (cp_build_array_ref): Handle 0[arr] earlier.
2025-08-28 Jason Merrill <jason@redhat.com>
PR c++/107953
* parser.cc (cp_parser_lambda_expression): Set
greater_than_is_operator_p.
2025-08-28 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119844
* typeck2.cc (cxx_incomplete_type_inform): Add explanation when
a similar type is complete but attached to a different module.
Also fix handling of partial specs and templates.
2025-08-28 Jakub Jelinek <jakub@redhat.com>
PR c++/121583
* semantics.cc (apply_deduced_return_type): Adjust
fun->returns*_struct when !uses_template_parms (fco) instead of
when !processing_template_decl.
2025-08-28 Jakub Jelinek <jakub@redhat.com>
Jason Merrill <jason@redhat.com>
PR c++/121575
* pt.cc (tsubst_expr) <case PARM_DECL>: If DECL_CONTEXT (t) isn't a
template return t for PARM_DECLs without local specialization.
2025-08-26 Sandra Loosemore <sloosemore@baylibre.com>
PR middle-end/118839
* decl.cc (omp_declare_variant_finalize_one): Error if variant
is the same as base.
2025-08-26 Sandra Loosemore <sloosemore@baylibre.com>
* parser.cc (cp_finish_omp_declare_variant): Structure diagnostic
code similarly to C front end. Make check for a missing "match"
clause unconditional.
2025-08-25 Jakub Jelinek <jakub@redhat.com>
* pt.cc (finish_expansion_stmt): Implement C++ CWG3048
- Empty destructuring expansion statements. Don't error for
destructuring expansion stmts if sz is 0, don't call
fit_decomposition_lang_decl if n is 0 and pass NULL rather than
this_decomp to cp_finish_decl.
2025-08-25 Jakub Jelinek <jakub@redhat.com>
PR c++/121601
* constexpr.cc (cxx_bind_parameters_in_call): Move break
if *jump_target before the check for null this object pointer.
2025-08-23 Eczbek <eczbek.void@gmail.com>
PR c++/116928
* parser.cc (cp_parser_braced_list): Set greater_than_is_operator_p.
2025-08-23 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120499
* method.cc (synthesize_method): Set the instantiating module.
2025-08-21 Jason Merrill <jason@redhat.com>
PR c++/121068
* constexpr.cc (cxx_eval_store_expression): Allow clobber of a const
object.
2025-08-21 Jason Merrill <jason@redhat.com>
PR c++/120757
* pt.cc (tsubst_expr) [OFFSET_REF]: Don't tsubst the type.
2025-08-20 Marek Polacek <polacek@redhat.com>
PR c++/121553
* name-lookup.cc (check_local_shadow): Check !is_normal_capture_proxy.
2025-08-19 Ben Wu <soggysocks206@gmail.com>
PR c++/120618
* parser.cc (cp_parser_compound_requirement): Set type to
NULL_TREE for invalid type-constraint.
2025-08-19 Patrick Palka <ppalka@redhat.com>
PR c++/121351
* class.cc (add_method): Use outer_template_args when
substituting outer template arguments into constraints.
2025-08-19 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120195
* name-lookup.cc (do_nonmember_using_decl): Also handle change
in exportedness of a function.
2025-08-18 Indu Bhagat <indu.bhagat@oracle.com>
* typeck.cc (get_member_function_from_ptrfunc): Use
'sanitize_code_type' instead of 'unsigned int'.
2025-08-17 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120503
PR c++/120824
* cp-tree.h (TYPE_UNNAMED_P): Adjust for enums with enumerators
for linkage purposes.
(enum_with_enumerator_for_linkage_p): Declare.
* decl.cc (name_unnamed_type): Adjust assertions to handle enums
with enumerators for linkage purposes.
(grokdeclarator): Use a typedef name for enums with enumerators
for linkage purposes.
(enum_with_enumerator_for_linkage_p): New function.
(finish_enum_value_list): Reset type linkage for enums with
enumerators for linkage purposes.
* mangle.cc (write_unnamed_enum_name): New function.
(write_unqualified_name): Handle enums with enumerators for
linkage purposes.
* tree.cc (decl_linkage): Fixup unnamed enums.
2025-08-15 Jakub Jelinek <jakub@redhat.com>
* cp-trait.def (STRUCTURED_BINDING_SIZE): New unary trait.
* cp-tree.h (finish_structured_binding_size): Declare.
* semantics.cc (trait_expr_value): Handle
CPTK_STRUCTURED_BINDING_SIZE.
(finish_structured_binding_size): New function.
(finish_trait_expr): Handle CPTK_RANK and CPTK_TYPE_ORDER
in the switch instead of just doing break; for those and
ifs at the end to handle them. Handle CPTK_STRUCTURED_BINDING_SIZE.
* pt.cc (tsubst_expr): Likewise.
* constraint.cc (diagnose_trait_expr): Likewise.
* decl.cc (get_tuple_size): Use mce_true for maybe_const_value.
(cp_decomp_size): Diagnose incomplete types not just if
processing_template_decl, and use error_at instead of pedwarn.
If btype is NULL, just return 0 instead of diagnosing an error.
2025-08-15 Jakub Jelinek <jakub@redhat.com>
PR c++/121552
* decl.cc: Implement C++20 P1766R1 - Mitigating minor modules maladies.
(diagnose_non_c_class_typedef_for_linkage,
maybe_diagnose_non_c_class_typedef_for_linkage): New functions.
(name_unnamed_type): Call
maybe_diagnose_non_c_class_typedef_for_linkage.
2025-08-15 Jakub Jelinek <jakub@redhat.com>
PR c++/121539
* parser.cc (cp_parser_cache_defarg): Set done to true for
CPP_ELLIPSIS followed by CPP_CLOSE_PAREN in !nsdmi at depth 0.
2025-08-15 Jakub Jelinek <jakub@redhat.com>
PR preprocessor/120778
PR target/121520
* lex.cc (cxx_init): Remove warn_on lambda. Use cpp_warn instead of
cpp_lookup and NODE_WARN bit setting or warn_on.
2025-08-14 Jakub Jelinek <jakub@redhat.com>
PR c++/121524
* tree.cc (build_cplus_array_type): Don't reuse variant type
if it has TREE_DEPRECATED or TREE_UNAVAILABLE flags set or,
unless elt_type has TYPE_USER_ALIGN set and TYPE_ALIGN is
TYPE_ALIGN of elt_type, TYPE_USER_ALIGN is not set.
2025-08-13 Marek Polacek <polacek@redhat.com>
PR c++/102610
* cp-tree.h (LAMBDA_EXPR_CONST_QUAL_P): Define.
(maybe_add_dummy_lambda_op): Declare.
(remove_dummy_lambda_op): Declare.
(push_capture_proxies): Adjust.
* lambda.cc (build_capture_proxy): No longer static. New early_p
parameter. Use it.
(add_capture): Adjust the call to build_capture_proxy.
(resolvable_dummy_lambda): Check DECL_LAMBDA_FUNCTION_P.
(push_capture_proxies): New.
(start_lambda_function): Use it.
* name-lookup.cc (check_local_shadow): Give an error for
is_capture_proxy.
(cp_binding_level_descriptor): Add lambda-scope.
(begin_scope) <case sk_lambda>: New case.
* name-lookup.h (enum scope_kind): Add sk_lambda.
(struct cp_binding_level): Widen kind.
* parser.cc (cp_parser_lambda_expression): Create a new (lambda) scope
after the lambda-introducer.
(cp_parser_lambda_declarator_opt): Set LAMBDA_EXPR_CONST_QUAL_P.
Create a dummy operator() if needed. Inject the captures into the
lambda scope. Remove the dummy operator().
(make_dummy_lambda_op): New.
(maybe_add_dummy_lambda_op): New.
(remove_dummy_lambda_op): New.
* pt.cc (tsubst_lambda_expr): Begin/end a lambda scope. Push the
capture proxies. Build/remove a dummy operator() if needed. Set
LAMBDA_EXPR_CONST_QUAL_P.
* semantics.cc (parsing_lambda_declarator): New.
(outer_var_p): Also consider captures as outer variables if in a lambda
declarator.
(process_outer_var_ref): Reset containing_function when
parsing_lambda_declarator.
(finish_decltype_type): Process decls in the lambda-declarator as well.
Look at LAMBDA_EXPR_CONST_QUAL_P unless we have an xobj function.
2025-08-13 Jakub Jelinek <jakub@redhat.com>
PR c++/120776
* cp-tree.def: Implement C++26 P1306R5 - Expansion statements.
(TEMPLATE_FOR_STMT): New tree code.
* cp-tree.h (struct saved_scope): Add expansion_stmt.
(in_expansion_stmt): Define.
(TEMPLATE_FOR_DECL, TEMPLATE_FOR_EXPR, TEMPLATE_FOR_BODY,
TEMPLATE_FOR_SCOPE, TEMPLATE_FOR_INIT_STMT): Define.
(struct tinst_level): Adjust comment.
(cp_decomp_size, finish_expansion_stmt, do_pushlevel,
cp_build_range_for_decls, build_range_temp,
cp_perform_range_for_lookup, begin_template_for_scope): Declare.
(finish_range_for_stmt): Remove declaration.
* cp-objcp-common.cc (cp_common_init_ts): Handle TEMPLATE_FOR_STMT.
* name-lookup.h (enum scope_kind): Add sk_template_for enumerator.
(struct cp_binding_level): Enlarge kind bitfield from 4 to 5 bits.
Adjust comment with remaining space bits.
* name-lookup.cc (check_local_shadow): Handle sk_template_for like
sk_for.
(cp_binding_level_descriptor): Add entry for sk_template_for.
(begin_scope): Handle sk_template_for.
* parser.h (IN_EXPANSION_STMT): Define.
* parser.cc (cp_debug_parser): Print IN_EXPANSION_STMT bit.
(cp_parser_lambda_expression): Temporarily clear in_expansion_stmt.
(cp_parser_statement): Handle RID_TEMPLATE followed by RID_FOR for
C++11.
(cp_parser_label_for_labeled_statement): Complain about named labels
inside of expansion stmt body.
(cp_hide_range_decl): New function.
(cp_parser_range_for): Use it. Adjust do_range_for_auto_deduction
caller. Remove second template argument from auto_vecs bindings and
names.
(build_range_temp): No longer static.
(do_range_for_auto_deduction): Add expansion_stmt argument.
(cp_build_range_for_decls): New function.
(cp_convert_range_for): Use it. Call cp_perform_range_for_lookup
rather than cp_parser_perform_range_for_lookup.
(cp_parser_perform_range_for_lookup): Rename to ...
(cp_perform_range_for_lookup): ... this. No longer static. Add
complain argument and handle it.
(cp_parser_range_for_member_function): Rename to ...
(cp_range_for_member_function): ... this.
(cp_parser_expansion_statement): New function.
(cp_parser_jump_statement): Handle IN_EXPANSION_STMT.
(cp_convert_omp_range_for): Adjust do_range_for_auto_deduction caller.
Call cp_perform_range_for_lookup rather than
cp_parser_perform_range_for_lookup.
* error.cc (print_instantiation_full_context): Handle tldcl being
TEMPLATE_FOR_STMT.
(print_instantiation_partial_context_line): Likewise.
* constexpr.cc (potential_constant_expression_1): Handle
TEMPLATE_FOR_STMT.
* decl.cc (poplevel_named_label_1): Use obl instead of bl->level_chain.
(finish_case_label): Diagnose case labels inside of template for.
(find_decomp_class_base): Add complain argument, don't diagnose
anything and just return error_mark_node if tf_none, adjust recursive
call.
(cp_decomp_size): New function.
(cp_finish_decomp): Adjust find_decomp_class_base caller.
* semantics.cc (do_pushlevel): No longer static.
(begin_template_for_scope): New function.
* pt.cc (push_tinst_level_loc): Handle TEMPLATE_FOR_STMT.
(reopen_tinst_level): Likewise.
(tsubst_stmt): Handle TEMPLATE_FOR_STMT.
(struct expansion_stmt_bc): New type.
(expansion_stmt_find_bc_r, finish_expansion_stmt): New functions.
* decl2.cc (decl_dependent_p): Return true for current function's decl
if in_expansion_stmt.
* call.cc (extend_ref_init_temps): Don't extend_all_temps if
TREE_STATIC (decl).
* cxx-pretty-print.cc (cxx_pretty_printer::statement): Handle
TEMPLATE_FOR_STMT.
2025-08-13 Benjamin Wu <bwu25@cs.washington.edu>
* lex.cc (init_operators): Fix typo.
2025-08-11 Nicolas Werner <nicolas.werner@hotmail.de>
* mapper-client.cc (spawn_mapper_program): change argv parsing
2025-08-11 Jakub Jelinek <jakub@redhat.com>
PR c++/117783
* decl.cc (set_sb_pack_name): For name independent decls
just clear DECL_NAME instead of appending #i to it.
2025-08-11 Jakub Jelinek <jakub@redhat.com>
PR c++/117783
* decl.cc (cp_finish_decomp): Don't sorry on tuple static
structured bindings with a pack, instead temporarily reset
DECL_NAME of the individual vars in the pack to the name
of the pack for cp_finish_decl time and force mangling.
2025-08-11 Jakub Jelinek <jakub@redhat.com>
PR c++/121442
* parser.cc (cp_parser_decomposition_declaration): Don't copy
DECL_DECLARED_CONST{EXPR,INIT}_P bits from decl to decl2 if
decl is error_mark_node.
2025-08-08 David Malcolm <dmalcolm@redhat.com>
* error.cc (cp_adjust_diagnostic_info): Convert "context" arg from
ptr to const &.
2025-08-07 Patrick Palka <ppalka@redhat.com>
* call.cc (extract_call_expr): Remove handling of C++20
rewritten comparison operators.
2025-08-07 Jakub Jelinek <jakub@redhat.com>
PR c++/117783
* parser.cc: Implement C++26 P1061R10 - Structured Bindings can
introduce a Pack.
(cp_parser_range_for): Also handle TREE_VEC as DECL_VALUE_EXPR
instead of ARRAY_REF.
(cp_parser_decomposition_declaration): Use sb-identifier-list instead
of identifier-list in comments. Parse structured bindings with
structured binding pack. Don't emit pedwarn about structured
binding attributes in structured bindings inside of a condition.
(cp_convert_omp_range_for): Also handle TREE_VEC as DECL_VALUE_EXPR
instead of ARRAY_REF.
* decl.cc (get_tuple_element_type): Change i argument type from
unsigned to unsigned HOST_WIDE_INT.
(get_tuple_decomp_init): Likewise.
(set_sb_pack_name): New function.
(cp_finish_decomp): Handle structured binding packs.
* pt.cc (tsubst_pack_expansion): Handle structured binding packs
and capture proxies for them. Formatting fixes.
(tsubst_decl): For structured binding packs don't tsubst TREE_TYPE
first, instead recreate the type after r is created.
(tsubst_omp_for_iterator): Also handle TREE_VEC as DECL_VALUE_EXPR
instead of ARRAY_REF.
(tsubst_expr): Handle sizeof... on non-dependent structure binding
packs.
(value_dependent_expression_p): Return false for sizeof... on
non-dependent structure binding packs.
(instantiation_dependent_r): Don't recurse on sizeof... on
non-dependent structure binding packs.
* constexpr.cc (potential_constant_expression_1): Also handle
TREE_VEC on DECL_VALUE_EXPR of structure binding packs.
2025-08-07 Jakub Jelinek <jakub@redhat.com>
PR preprocessor/120778
* lex.cc (cxx_init): Mark cpp nodes corresponding
to keywords, identifiers with special meaning and standard
attribute identifiers as NODE_WARN if warn_keyword_macro.
2025-08-06 Patrick Palka <ppalka@redhat.com>
PR c++/121231
PR c++/119688
PR c++/94511
* mangle.cc (write_expression): Write out implicit non-trailing
zeroes of a CONSTRUCTOR when the ABI version is at least 21.
2025-08-06 Jason Merrill <jason@redhat.com>
* constexpr.cc (cxx_eval_indirect_ref): Improve diagnostic.
2025-08-06 Kwok Cheung Yeung <kcyeung@baylibre.com>
* parser.cc (cp_parser_omp_clause_from_to): Parse 'iterator' modifier.
* semantics.cc (finish_omp_clauses): Finish iterators for to/from
clauses.
2025-08-06 Kwok Cheung Yeung <kcyeung@baylibre.com>
Andrew Stubbs <ams@baylibre.com>
* parser.cc (cp_parser_omp_clause_map): Parse 'iterator' modifier.
* semantics.cc (finish_omp_clauses): Finish iterators. Apply
iterators to generated clauses.
2025-08-05 Jason Merrill <jason@redhat.com>
PR c++/121068
* constexpr.cc (cxx_eval_store_expression): Handle clobbers.
(potential_constant_expression_1): Handle clobbers more.
* decl.cc (build_clobber_this): Use INIT_EXPR for initial clobber.
* init.cc (build_new_1): Clobber on placement new.
(build_vec_init): Don't clean up after clobber.
2025-08-04 Patrick Palka <ppalka@redhat.com>
PR c++/121351
PR c++/119859
* class.cc (add_method): Substitute outer template arguments
into constraints before comparing them if the declarations are
from different classes.
2025-08-04 Patrick Palka <ppalka@redhat.com>
PR c++/120620
* constexpr.cc (cxx_dynamic_cast_fn_p): Return true only
for synthesized __dynamic_cast.
2025-08-01 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/108080
* module.cc (trees_out::core_vals): Warn when streaming
target/optimize node; adjust comments.
(trees_in::core_vals): Don't stream a target/optimize node.
2025-08-01 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/121238
* module.cc (trees_in::fn_parms_fini): Merge properties for
definitions.
2025-07-31 Jason Merrill <jason@redhat.com>
PR c++/120800
* constexpr.cc (cxx_eval_vec_init_1): Suppress access control.
2025-07-31 Marek Polacek <polacek@redhat.com>
PR c++/120775
* constexpr.cc (cxx_eval_outermost_constant_expr): Use
extract_call_expr.
* cp-tree.h (CONSTEVAL_BLOCK_P, LAMBDA_EXPR_CONSTEVAL_BLOCK_P): Define.
(finish_static_assert): Adjust declaration.
(current_nonlambda_function): Likewise.
* lambda.cc (current_nonlambda_function): New parameter. Only keep
iterating if the function represents a consteval block.
* parser.cc (cp_parser_lambda_expression): New parameter for
consteval blocks. Use it. Set LAMBDA_EXPR_CONSTEVAL_BLOCK_P.
(cp_parser_lambda_declarator_opt): Likewise.
(build_empty_string): New.
(cp_parser_next_tokens_are_consteval_block_p): New.
(cp_parser_consteval_block): New.
(cp_parser_block_declaration): Handle consteval blocks.
(cp_parser_static_assert): Use build_empty_string.
(cp_parser_member_declaration): Handle consteval blocks.
* pt.cc (tsubst_stmt): Adjust a call to finish_static_assert.
* semantics.cc (finish_fname): Warn for consteval blocks.
(finish_static_assert): New parameter for consteval blocks. Set
CONSTEVAL_BLOCK_P. Evaluate consteval blocks specially.
2025-07-30 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/121291
* constraint.cc (diagnose_trait_expr): Remove assumption about
failures returning error_mark_node.
* except.cc (explain_not_noexcept): Allow expr not being
noexcept.
* method.cc (build_invoke): Adjust comment.
(is_trivially_xible): Always note non-trivial components if expr
is not null or error_mark_node.
(is_nothrow_xible): Likewise for non-noexcept components.
(is_nothrow_convertible): Likewise.
2025-07-30 Jason Merrill <jason@redhat.com>
* pt.cc (convert_nontype_argument_function): Check
cxx_constant_value on failure.
(invalid_tparm_referent_p): Likewise.
2025-07-30 Jakub Jelinek <jakub@redhat.com>
PR c++/121133
* parser.cc (cp_parser_unary_expression): Adjust
cp_parser_extension_opt caller and restore warn_long_long.
(cp_parser_declaration): Likewise.
(cp_parser_block_declaration): Likewise.
(cp_parser_member_declaration): Likewise.
(cp_parser_extension_opt): Add SAVED_LONG_LONG argument,
save previous warn_long_long state into it and clear it
for __extension__.
2025-07-27 Nathaniel Shead <nathanieloshead@gmail.com>
* cp-tree.h (struct lang_type): Add comment mentioning modules.
* module.cc (trees_out::lang_type_bools): Stream new flags, use
gcc_checking_assert.
(trees_in::lang_type_bools): Likewise.
2025-07-25 David Malcolm <dmalcolm@redhat.com>
* constexpr.cc: Update usage of "diagnostic_info" to explicitly
refer to "diagnostics::diagnostic_info".
* cp-tree.h: Likewise.
* error.cc: Likewise.
* module.cc: Likewise.
2025-07-25 David Malcolm <dmalcolm@redhat.com>
* call.cc: Update for diagnostic_t becoming
enum class diagnostics::kind.
* constexpr.cc: Likewise.
* cp-tree.h: Likewise.
* decl.cc: Likewise.
* error.cc: Likewise.
* init.cc: Likewise.
* method.cc: Likewise.
* module.cc: Likewise.
* parser.cc: Likewise.
* pt.cc: Likewise.
* semantics.cc: Likewise.
* typeck.cc: Likewise.
* typeck2.cc: Likewise.
2025-07-25 David Malcolm <dmalcolm@redhat.com>
* cp-tree.h: Update for renaming of diagnostic_option_id to
diagnostics::option_id.
* decl.cc: Likewise.
* error.cc: Likewise.
* name-lookup.cc: Likewise.
2025-07-25 David Malcolm <dmalcolm@redhat.com>
* error.cc: Update for move of diagnostic-color.h to
diagnostics/color.h.
2025-07-25 David Malcolm <dmalcolm@redhat.com>
* cp-tree.h: Update for diagnostic_context becoming
diagnostics::context.
* error.cc: Likewise.
* module.cc: Likewise.
2025-07-25 David Malcolm <dmalcolm@redhat.com>
* constexpr.cc: Update to add "m_" prefix to fields of
diagnostic_info throughout.
* error.cc: Likewise.
2025-07-25 David Malcolm <dmalcolm@redhat.com>
* cp-tree.h: Update for move of diagnostics output formats into
namespace "diagnostics" as "sinks".
* error.cc: Likewise.
2025-07-25 Patrick Palka <ppalka@redhat.com>
* call.cc (build_new_op): If the selected candidate is
rewritten, communicate the LOOKUP_REWRITTEN/REVERSED flags to
the caller via the 'overload' out-parameter, and stop clearing
'*overload' in that case.
* tree.cc (build_min_non_dep_op_overload): Handle rebuilding all
C++20 rewritten comparison operator expressions.
2025-07-25 Iain Sandoe <iain@sandoe.co.uk>
PR c++/121219
* coroutines.cc
(cp_coroutine_transform::build_ramp_function): Reorder the return
expressions for the 'normal' and 'allocation failed' cases so that
NRV constraints are met.
2025-07-24 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/117294
PR c++/113854
* call.cc (implicit_conversion_error): Hide label when printing
a stub object.
(convert_like_internal): Likewise, and nest candidate
diagnostics.
* constexpr.cc (diagnose_failing_condition): Nest diagnostics,
attempt to provide more helpful diagnostics for traits.
* constraint.cc (satisfy_atom): Pass result before constant
evaluation to diagnose_atomic_constraint.
(diagnose_trait_expr): Adjust diagnostics for clarity and
detail.
(maybe_diagnose_standard_trait): New function.
(diagnose_atomic_constraint): Attempt to provide more helpful
diagnostics for more traits.
* cp-tree.h (explain_not_noexcept): Declare new function.
(is_trivially_xible): Add parameter.
(is_nothrow_xible): Likewise.
(is_xible): Likewise.
(is_convertible): Likewise.
(is_nothrow_convertible): Likewise.
(diagnose_trait_expr): Declare new function.
(maybe_diagnose_standard_trait): Declare new function.
* error.cc (dump_type) <case TREE_VEC>: Handle trait types.
* except.cc (explain_not_noexcept): New function.
* method.cc (build_trait_object): Add complain parameter.
(build_invoke): Propagate complain parameter.
(assignable_expr): Add explain parameter to show diagnostics.
(constructible_expr): Likewise.
(destructible_expr): Likewise.
(is_xible_helper): Replace trivial flag with explain flag,
add diagnostics.
(is_trivially_xible): New explain flag.
(is_nothrow_xible): Likewise.
(is_xible): Likewise.
(is_convertible_helper): Add complain flag.
(is_convertible): New explain flag.
(is_nothrow_convertible): Likewise.
* typeck.cc (cp_build_function_call_vec): Add handling for stub
objects.
(convert_arguments): Always return -1 on error.
* typeck2.cc (cxx_readonly_error): Add handling for stub
objects.
2025-07-24 Jason Merrill <jason@redhat.com>
* pt.cc (tsubst_lambda_expr): Revert r9-5971 change.
2025-07-24 Jason Merrill <jason@redhat.com>
PR c++/114632
PR c++/101233
* lambda.cc (maybe_add_lambda_conv_op): Not for xobj lambda.
* pt.cc (tsubst_function_decl): Add cp_evaluated.
(alias_ctad_tweaks): Revert PR101233 fix.
2025-07-24 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120412
* module.cc (trees_out::core_vals): Write TU_LOCAL_ENTITY bits.
(trees_in::core_vals): Read it.
(trees_in::tree_node): Handle TU_LOCAL_ENTITY typedefs.
2025-07-23 Patrick Palka <ppalka@redhat.com>
PR c++/121179
* call.cc (build_new_op): Don't clear *overload for a simple
!= to == rewrite.
* tree.cc (build_min_non_dep_op_overload): Handle TRUTH_NOT_EXPR
appearing in a rewritten operator expression.
2025-07-23 Patrick Palka <ppalka@redhat.com>
PR c++/121055
* method.cc (build_invoke): Correct reference_wrapper handling.
2025-07-22 Jason Merrill <jason@redhat.com>
PR c++/121068
* constexpr.cc (cxx_eval_store_expression): Allow ARRAY_REFs
when activating an array member of a union.
2025-07-21 Stefan Schulze Frielinghaus <stefansf@gcc.gnu.org>
* semantics.cc (finish_asm_stmt): Pass null pointer to
parse_{input,output}_constraint().
2025-07-16 Kwok Cheung Yeung <kcyeung@baylibre.com>
* pt.cc (tsubst_omp_clause_decl): Use OMP_ITERATOR_DECL_P.
* semantics.cc (handle_omp_array_sections): Likewise.
(finish_omp_clauses): Likewise.
2025-07-16 Alfie Richards <alfie.richards@arm.com>
* class.cc (add_method): Remove argument.
* cp-tree.h (maybe_version_functions): Ditto.
* decl.cc (decls_match): Ditto.
(maybe_version_functions): Ditto.
2025-07-16 Jeremy Rifkin <jeremy@rifkin.dev>
PR c/82134
* call.cc (build_call_a): Add suppress_warning
* cp-gimplify.cc (cp_gimplify_expr): Add suppress_warning
2025-07-15 Jason Merrill <jason@redhat.com>
PR c++/44677
* cp-gimplify.cc (cp_fold) [CLEANUP_POINT_EXPR]: Don't force rvalue.
[COMPOUND_EXPR]: Likewise.
* cvt.cc (convert_to_void): Call mark_exp_read later.
* expr.cc (mark_use): Turn off read_p for any void argument.
(mark_exp_read): Return early for void argument.
2025-07-15 Jason Merrill <jason@redhat.com>
PR c++/120577
* constexpr.cc (cxx_eval_call_expression): Set
CONSTRUCTOR_NO_CLEARING on initial value for ctor.
(cxx_eval_component_reference): Make value-initialization
of an aggregate member explicit.
2025-07-15 Jakub Jelinek <jakub@redhat.com>
Jason Merrill <jason@redhat.com>
PR c/44677
* cp-gimplify.cc (cp_fold): Clear DECL_READ_P on lhs of MODIFY_EXPR
after cp_fold_rvalue if it wasn't set before.
* decl.cc (poplevel): Use OPT_Wunused_but_set_variable_
instead of OPT_Wunused_but_set_variable.
(finish_function): Use OPT_Wunused_but_set_parameter_
instead of OPT_Wunused_but_set_parameter.
* expr.cc (mark_use): Clear read_p for {PRE,POST}{IN,DE}CREMENT_EXPR
cast to void on {VAR,PARM}_DECL for
-Wunused-but-set-{parameter,variable}={2,3}.
(mark_exp_read): Handle {PRE,POST}{IN,DE}CREMENT_EXPR and don't handle
it when cast to void.
* module.cc (trees_in::fn_parms_fini): Remove unused but set variable
ix.
* semantics.cc (finish_unary_op_expr): Return early for
PRE{IN,DE}CREMENT_EXPR.
* typeck.cc (cp_build_unary_op): Clear DECL_READ_P
after mark_lvalue_use for -Wunused-but-set-{parameter,variable}={2,3}
on PRE{IN,DE}CREMENT_EXPR argument.
(cp_build_modify_expr): Clear DECL_READ_P after cp_build_binary_op
for -Wunused-but-set-{parameter,variable}=3.
2025-07-11 Jakub Jelinek <jakub@redhat.com>
PR c++/119064
* cp-tree.h: Implement C++26 P2786R13 - Trivial Relocatability.
(struct lang_type): Add trivially_relocatable,
trivially_relocatable_computed, replaceable and replaceable_computed
bitfields. Change width of dummy from 2 to 30.
(CLASSTYPE_TRIVIALLY_RELOCATABLE_BIT,
CLASSTYPE_TRIVIALLY_RELOCATABLE_COMPUTED, CLASSTYPE_REPLACEABLE_BIT,
CLASSTYPE_REPLACEABLE_COMPUTED): Define.
(enum virt_specifier): Add VIRT_SPEC_TRIVIALLY_RELOCATABLE_IF_ELIGIBLE
and VIRT_SPEC_REPLACEABLE_IF_ELIGIBLE enumerators.
(trivially_relocatable_type_p, replaceable_type_p): Declare.
* cp-trait.def (IS_NOTHROW_RELOCATABLE, IS_REPLACEABLE,
IS_TRIVIALLY_RELOCATABLE): New traits.
* parser.cc (cp_parser_class_property_specifier_seq_opt): Handle
trivially_relocatable_if_eligible,
__trivially_relocatable_if_eligible, replaceable_if_eligible and
__replaceable_if_eligible.
(cp_parser_class_head): Set CLASSTYPE_REPLACEABLE_BIT
and/or CLASSTYPE_TRIVIALLY_RELOCATABLE_BIT if corresponding
conditional keywords were parsed and assert corresponding *_COMPUTED
macro is false.
* pt.cc (instantiate_class_template): Copy over also
CLASSTYPE_TRIVIALLY_RELOCATABLE_{BIT,COMPUTED} and
CLASSTYPE_REPLACEABLE_{BIT,COMPUTED} bits.
* semantics.cc (referenceable_type_p): Move definition earlier.
(trait_expr_value): Handle CPTK_IS_NOTHROW_RELOCATABLE,
CPTK_IS_REPLACEABLE and CPTK_IS_TRIVIALLY_RELOCATABLE.
(finish_trait_expr): Likewise.
* tree.cc (default_movable_type_p): New function.
(union_with_no_declared_special_member_fns): Likewise.
(trivially_relocatable_type_p): Likewise.
(replaceable_type_p): Likewise.
* constraint.cc (diagnose_trait_expr): Handle
CPTK_IS_NOTHROW_RELOCATABLE, CPTK_IS_REPLACEABLE and
CPTK_IS_TRIVIALLY_RELOCATABLE.
2025-07-10 Jakub Jelinek <jakub@redhat.com>
* cp-tree.h (struct lang_type): Add comment before key_method.
Remove lambda_expr.
(CLASSTYPE_KEY_METHOD): Give NULL_TREE if not TYPE_POLYMORPHIC_P.
(SET_CLASSTYPE_KEY_METHOD): Define.
(CLASSTYPE_LAMBDA_EXPR): Give NULL_TREE if TYPE_POLYMORPHIC_P.
Use key_method member instead of lambda_expr.
(SET_CLASSTYPE_LAMBDA_EXPR): Define.
* class.cc (determine_key_method): Use SET_CLASSTYPE_KEY_METHOD
macro.
* decl.cc (xref_tag): Use SET_CLASSTYPE_LAMBDA_EXPR macro.
* lambda.cc (begin_lambda_type): Likewise.
* module.cc (trees_in::read_class_def): Use SET_CLASSTYPE_LAMBDA_EXPR
and SET_CLASSTYPE_KEY_METHOD macros, assert lambda is NULL if
TYPE_POLYMORPHIC_P and otherwise assert key_method is NULL.
2025-07-10 Jakub Jelinek <jakub@redhat.com>
PR c++/120628
* parser.cc (cp_parser_elaborated_type_specifier): Use
cp_parser_nth_token_starts_class_definition_p with extra argument 1
instead of cp_parser_next_token_starts_class_definition_p.
(cp_parser_class_property_specifier_seq_opt): For final conditional
keyword in C++98 check if the token after it isn't
cp_parser_nth_token_starts_class_definition_p nor CPP_NAME and in
that case break without consuming it nor warning.
(cp_parser_class_head): Use
cp_parser_nth_token_starts_class_definition_p with extra argument 1
instead of cp_parser_next_token_starts_class_definition_p.
(cp_parser_next_token_starts_class_definition_p): Renamed to ...
(cp_parser_nth_token_starts_class_definition_p): ... this. Add N
argument. Use cp_lexer_peek_nth_token instead of cp_lexer_peek_token.
2025-07-10 Jakub Jelinek <jakub@redhat.com>
PR c++/120569
* parser.cc (cp_parser_class_property_specifier_seq_opt): New
function.
(cp_parser_class_head): Use it instead of
cp_parser_property_specifier_seq_opt. Don't diagnose
VIRT_SPEC_OVERRIDE here. Formatting fix.
2025-07-10 Jakub Jelinek <jakub@redhat.com>
PR c++/117785
* constexpr.cc: Implement C++26 P3068R5 - constexpr exceptions.
(class constexpr_global_ctx): Add caught_exceptions and
uncaught_exceptions members.
(constexpr_global_ctx::constexpr_global_ctx): Initialize
uncaught_exceptions.
(returns, breaks, continues, switches): Move earlier.
(throws): New function.
(exception_what_str, diagnose_std_terminate,
diagnose_uncaught_exception): New functions.
(enum cxa_builtin): New type.
(cxx_cxa_builtin_fn_p, cxx_eval_cxa_builtin_fn): New functions.
(cxx_eval_builtin_function_call): Add jump_target argument. Call
cxx_eval_cxa_builtin_fn for __builtin_eh_ptr_adjust_ref. Adjust
cxx_eval_constant_expression calls, if it results in jmp_target,
set *jump_target to it and return.
(cxx_bind_parameters_in_call): Add jump_target argument. Pass
it through to cxx_eval_constant_expression. If it sets *jump_target,
break.
(fold_operand): Adjust cxx_eval_constant_expression caller.
(cxx_eval_assert): Likewise. If it set jmp_target, return true.
(cxx_eval_internal_function): Add jump_target argument. Pass it
through to cxx_eval_constant_expression. Return early if *jump_target
after recursing on args.
(cxx_eval_dynamic_cast_fn): Likewise. Don't set reference_p for
C++26 with -fexceptions.
(cxx_eval_thunk_call): Add jump_target argument. Pass it through
to cxx_eval_constant_expression.
(cxx_set_object_constness): Likewise. Don't set TREE_READONLY if
throws (jump_target).
(cxx_eval_call_expression): Add jump_target argument. Pass it
through to cxx_eval_internal_function, cxx_eval_builtin_function_call,
cxx_eval_thunk_call, cxx_eval_dynamic_cast_fn and
cxx_set_object_constness. Pass it through also
cxx_eval_constant_expression on arguments, cxx_bind_parameters_in_call
and cxx_fold_indirect_ref and for those cases return early
if *jump_target. Call cxx_eval_cxa_builtin_fn for cxx_cxa_builtin_fn_p
functions. For cxx_eval_constant_expression on body, pass address of
cleared jmp_target automatic variable, if it throws propagate
to *jump_target and make it non-cacheable. For C++26 don't diagnose
calls to non-constexpr functions before cxx_bind_parameters_in_call
could report some argument throwing an exception.
(cxx_eval_unary_expression): Add jump_target argument. Pass it
through to cxx_eval_constant_expression and return early
if *jump_target after the call.
(cxx_fold_pointer_plus_expression): Likewise.
(cxx_eval_binary_expression): Likewise and similarly for
cxx_fold_pointer_plus_expression call.
(cxx_eval_conditional_expression): Pass jump_target to
cxx_eval_constant_expression on first operand and return early
if *jump_target after the call.
(cxx_eval_vector_conditional_expression): Add jump_target argument.
Pass it through to cxx_eval_constant_expression for all 3 arguments
and return early if *jump_target after any of those calls.
(get_array_or_vector_nelts): Add jump_target argument. Pass it
through to cxx_eval_constant_expression.
(eval_and_check_array_index): Add jump_target argument. Pass it
through to cxx_eval_constant_expression calls and return early after
each of them if *jump_target.
(cxx_eval_array_reference): Likewise.
(cxx_eval_component_reference): Likewise.
(cxx_eval_bit_field_ref): Likewise.
(cxx_eval_bit_cast): Likewise. Assert CHECKING_P call doesn't
throw or return.
(cxx_eval_logical_expression): Add jump_target argument. Pass it
through to cxx_eval_constant_expression calls and return early after
each of them if *jump_target.
(cxx_eval_bare_aggregate): Likewise.
(cxx_eval_vec_init_1): Add jump_target argument. Pass it through
to cxx_eval_bare_aggregate and recursive call. Pass it through
to get_array_or_vector_nelts and cxx_eval_constant_expression
and return early after it if *jump_target.
(cxx_eval_vec_init): Add jump_target argument. Pass it through
to cxx_eval_constant_expression and cxx_eval_vec_init_1.
(cxx_union_active_member): Add jump_target argument. Pass it
through to cxx_eval_constant_expression and return early after it
if *jump_target.
(cxx_fold_indirect_ref_1): Add jump_target argument. Pass it
through to cxx_union_active_member and recursive calls.
(cxx_eval_indirect_ref): Add jump_target argument. Pass it through
to cxx_fold_indirect_ref_1 calls and to recursive call, in which
case return early after it if *jump_target.
(cxx_fold_indirect_ref): Add jump_target argument. Pass it through
to cxx_fold_indirect_ref and cxx_eval_constant_expression calls and
return early after those if *jump_target.
(cxx_eval_trinary_expression): Add jump_target argument. Pass it
through to cxx_eval_constant_expression calls and return early after
those if *jump_target.
(cxx_eval_store_expression): Add jump_target argument. Pass it
through to cxx_eval_constant_expression and eval_and_check_array_index
calls and return early after those if *jump_target.
(cxx_eval_increment_expression): Add jump_target argument. Pass it
through to cxx_eval_constant_expression calls and return early after
those if *jump_target.
(label_matches): Handle VAR_DECL case.
(cxx_eval_statement_list): Remove local_target variable and
!jump_target handling. Handle throws (jump_target) like returns or
breaks.
(cxx_eval_loop_expr): Remove local_target variable and !jump_target
handling. Pass it through to cxx_eval_constant_expression. Handle
throws (jump_target) like returns.
(cxx_eval_switch_expr): Pass jump_target through to
cxx_eval_constant_expression on cond, return early after it
if *jump_target.
(build_new_constexpr_heap_type): Add jump_target argument. Pass it
through to cxx_eval_constant_expression calls, return early after
those if *jump_target.
(merge_jump_target): New function.
(cxx_eval_constant_expression): Make jump_target argument no longer
defaulted, don't test jump_target for NULL. Pass jump_target
through to recursive calls, cxx_eval_call_expression,
cxx_eval_store_expression, cxx_eval_indirect_ref,
cxx_eval_unary_expression, cxx_eval_binary_expression,
cxx_eval_logical_expression, cxx_eval_array_reference,
cxx_eval_component_reference, cxx_eval_bit_field_ref,
cxx_eval_vector_conditional_expression, cxx_eval_bare_aggregate,
cxx_eval_vec_init, cxx_eval_trinary_expression, cxx_fold_indirect_ref,
build_new_constexpr_heap_type, cxx_eval_increment_expression,
cxx_eval_bit_cast and return earlyu after some of those
if *jump_target as needed.
(cxx_eval_constant_expression) <case TARGET_EXPR>: For C++26 push
also CLEANUP_EH_ONLY cleanups, with NULL_TREE marker after them.
(cxx_eval_constant_expression) <case RETURN_EXPR>: Don't
override *jump_target if throws (jump_target).
(cxx_eval_constant_expression) <case TRY_CATCH_EXPR, case TRY_BLOCK,
case MUST_NOT_THROW_EXPR, case TRY_FINALLY_EXPR, case CLEANUP_STMT>:
Handle C++26 constant expressions.
(cxx_eval_constant_expression) <case CLEANUP_POINT_EXPR>: For C++26
with throws (jump_target) evaluate the CLEANUP_EH_ONLY cleanups as
well, and if not throws (jump_target) skip those. Set *jump_target
if some of the cleanups threw.
(cxx_eval_constant_expression) <case THROW_EXPR>: Recurse on operand
for C++26.
(cxx_eval_outermost_constant_expr): Diagnose uncaught exceptions both
from main expression and cleanups, diagnose also
break/continue/returns from the main expression. Handle
CLEANUP_EH_ONLY cleanup markers. Don't diagnose mutable poison stuff
if non_constant_p. Use different diagnostics for non-deleted heap
allocations if they were allocated by __cxa_allocate_exception.
(callee_might_throw): New function.
(struct check_for_return_continue_data): Add could_throw field.
(check_for_return_continue): Handle AGGR_INIT_EXPR and CALL_EXPR and
set d->could_throw if they could throw.
(potential_constant_expression_1): For CALL_EXPR allow
cxx_dynamic_cast_fn_p calls. For C++26 set *jump_target to void_node
for calls that could throw. For C++26 if call to non-constexpr call
is seen, try to evaluate arguments first and if they could throw,
don't diagnose call to non-constexpr function nor return false.
Adjust check_for_return_continue_data initializers and
set *jump_target to void_node if data.could_throw_p. For C++26
recurse on THROW_EXPR argument. Add comment explaining TRY_BLOCK
handling with C++26 exceptions. Handle throws like returns in some
cases.
* cp-tree.h (MUST_NOT_THROW_NOEXCEPT_P, MUST_NOT_THROW_THROW_P,
MUST_NOT_THROW_CATCH_P, DECL_EXCEPTION_REFCOUNT): Define.
(DECL_LOCAL_DECL_P): Fix comment typo, VARIABLE_DECL -> VAR_DECL.
(enum cp_built_in_function): Add CP_BUILT_IN_EH_PTR_ADJUST_REF,
(handler_match_for_exception_type): Declare.
* call.cc (handler_match_for_exception_type): New function.
* except.cc (initialize_handler_parm): Set MUST_NOT_THROW_CATCH_P
on newly created MUST_NOT_THROW_EXPR.
(begin_eh_spec_block): Set MUST_NOT_THROW_NOEXCEPT_P.
(wrap_cleanups_r): Set MUST_NOT_THROW_THROW_P.
(build_throw): Add another TARGET_EXPR whose scope spans
until after the __cxa_throw call and copy pointer value from ptr
to it and use it in __cxa_throw argument.
* tree.cc (builtin_valid_in_constant_expr_p): Handle
CP_BUILT_IN_EH_PTR_ADJUST_REF.
* decl.cc (cxx_init_decl_processing): Initialize
__builtin_eh_ptr_adjust_ref FE builtin.
* pt.cc (tsubst_stmt) <case MUST_NOT_THROW_EXPR>: Copy the
MUST_NOT_THROW_NOEXCEPT_P, MUST_NOT_THROW_THROW_P and
MUST_NOT_THROW_CATCH_P flags.
* cp-gimplify.cc (cp_gimplify_expr) <case CALL_EXPR>: Error on
non-folded CP_BUILT_IN_EH_PTR_ADJUST_REF calls.
2025-07-09 Jason Merrill <jason@redhat.com>
PR c++/121012
PR c++/120917
* parser.cc (cp_parser_lambda_expression): Clear
parser->in_template_argument_list_p.
2025-07-09 Jason Merrill <jason@redhat.com>
PR c++/121008
PR c++/113563
* semantics.cc (finish_this_expr): Do check current_class_ref for
non-lambda.
2025-07-09 Marek Polacek <polacek@redhat.com>
PR c++/119838
* parser.cc (cp_parser_nested_name_specifier_opt): New global_p
parameter. Look for "template" when global_p is true.
(cp_parser_simple_type_specifier): Pass global_p to
cp_parser_nested_name_specifier_opt.
2025-07-08 Marek Polacek <polacek@redhat.com>
Andrew Pinski <quic_apinski@quicinc.com>
PR c++/83469
PR c++/93809
* cp-tree.h (UNION_TYPE_P): Define.
(TYPENAME_IS_UNION_P): Define.
* decl.cc (struct typename_info): Add union_p field.
(struct typename_hasher::equal): Compare union_p field.
(build_typename_type): Use ti.union_p for union_type. Set
TYPENAME_IS_UNION_P.
* error.cc (dump_type) <case TYPENAME_TYPE>: Handle
TYPENAME_IS_UNION_P.
* module.cc (trees_out::type_node): Likewise.
* parser.cc (cp_parser_check_class_key): Allow typename key for union
types and allow union keyword for typename types.
* pt.cc (tsubst) <case TYPENAME_TYPE>: Don't conflate unions with
class_type. For TYPENAME_IS_CLASS_P, check NON_UNION_CLASS_TYPE_P
rather than CLASS_TYPE_P. Add TYPENAME_IS_UNION_P handling.
2025-07-08 Jakub Jelinek <jakub@redhat.com>
PR c++/117784
* decl.cc: Implement part of C++26 P2686R4 - constexpr structured
bindings.
(cp_finish_decl): Pedwarn for C++23 and older on constinit on
structured bindings except for static/thread_local where it uses
earlier error.
(grokdeclarator): Pedwarn on constexpr structured bindings for
C++23 and older instead of emitting error always, don't clear
constexpr_p in that case.
* parser.cc (cp_parser_decomposition_declaration): Copy over
DECL_DECLARED_CONSTEXPR_P and DECL_DECLARED_CONSTINIT_P flags.
2025-07-07 Alfie Richards <alfie.richards@arm.com>
PR c++/119498
* decl.cc (duplicate_decls): Change logic to not always exclude FMV
annotated functions in cases of return type non-ambiguation.
2025-07-07 Jason Merrill <jason@redhat.com>
PR c++/120917
* parser.cc (cp_parser_simple_type_specifier): Attach
auto in targ in parameter to -Wabbreviated-auto-in-template-arg.
(cp_parser_placeholder_type_specifier): Diagnose constrained auto in
template arg.
2025-07-07 Jakub Jelinek <jakub@redhat.com>
PR c++/84009
* parser.cc (cp_parser_decomposition_declaration): Pedwarn
on thread_local, __thread or static in decl_specifiers for
for-range-declaration.
(cp_parser_init_declarator): Likewise, and also for extern
or register.
2025-07-04 Jason Merrill <jason@redhat.com>
PR c++/120575
PR c++/116064
* parser.cc (cp_parser_abort_tentative_parse): Check seen_error
instead of errorcount.
2025-07-03 Jason Merrill <jason@redhat.com>
PR c++/120716
* lambda.cc (finish_lambda_function): Pass cur_stmt_list to
prune_lambda_captures.
2025-07-03 Jason Merrill <jason@redhat.com>
PR c++/120748
* lambda.cc (lambda_expr_this_capture): Don't return a FIELD_DECL.
* parser.cc (cp_parser_primary_expression): Ignore THIS_FORBIDDEN
if cp_unevaluated_operand.
2025-07-03 Jakub Jelinek <jakub@redhat.com>
PR c++/120940
* typeck.cc (cp_build_array_ref): Fix a pasto.
2025-07-03 Jason Merrill <jason@redhat.com>
PR c++/120684
PR c++/118856
* constexpr.cc (cxx_eval_constant_expression) [TARGET_EXPR]: Clear
the value first if is_complex.
2025-07-01 Jakub Jelinek <jakub@redhat.com>
PR c++/120471
* typeck.cc (cp_build_array_ref) <case COND_EXPR>: If idx is not
INTEGER_CST, don't optimize the case (but cp_default_conversion on
array early if it has ARRAY_TYPE) or use
SAVE_EXPR <op0>, SAVE_EXPR <idx>, SAVE_EXPR <op0> as new op0 depending
on flag_strong_eval_order and whether op1 and op2 are arrays with
invariant address or tree invariant pointers. Formatting fixes.
2025-06-28 Nathaniel Shead <nathanieloshead@gmail.com>
* module.cc (trees_out::walking_bit_field_unit): New flag.
(trees_out::trees_out): Initialize it.
(trees_out::core_vals): Set it.
(trees_out::get_merge_kind): Use it, move previous ad-hoc check
into assertion.
2025-06-28 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120644
* decl.cc (cp_finish_decl): Also propagate type to partial
templates.
* module.cc (trees_out::decl_value): Add assertion that the
TREE_TYPE of a streamed template decl matches its inner.
(trees_in::is_matching_decl): Clarify function return type
deduction should only occur for non-TEMPLATE_DECL.
* pt.cc (template_for_substitution): Handle partial specs.
2025-06-27 Marek Polacek <polacek@redhat.com>
PR c++/120756
* pt.cc (resolve_nondeduced_context): Pass complain to mark_used.
2025-06-27 Jakub Jelinek <jakub@redhat.com>
PR c++/120777
* constexpr.cc: Implement C++26 P3533R2 - constexpr virtual
inheritance.
(is_valid_constexpr_fn): Don't reject constexpr cdtors in classes
with virtual bases for C++26, adjust error wording.
(cxx_bind_parameters_in_call): Add ORIG_FUN argument, add
values for __in_chrg and __vtt_parm arguments when needed.
(cxx_eval_dynamic_cast_fn): Adjust function comment, HINT -1
should be possible. For C++26 if obj is cast from POINTER_PLUS_EXPR,
attempt to use cxx_fold_indirect_ref to simplify it and if successful,
build ADDR_EXPR of that.
(cxx_eval_call_expression): Add orig_fun variable, set it to
fun before looking through clones, pass it to
cxx_bind_parameters_in_call.
(reduced_constant_expression_p): Add SZ argument, pass DECL_SIZE
of FIELD_DECL e.index to recursive calls and don't return false
if SZ is non-NULL and there are unfilled fields with bit position
at or above SZ.
(cxx_fold_indirect_ref_1): Handle reading of vtables using
ptrdiff_t dynamic type instead of some pointer type. Set el_sz
to DECL_SIZE_UNIT value rather than TYPE_SIZE_UNIT of
DECL_FIELD_IS_BASE fields in classes with virtual bases.
(cxx_fold_indirect_ref): In canonicalize_obj_off lambda look
through COMPONENT_REFs with DECL_FIELD_IS_BASE in classes with
virtual bases and adjust off correspondingly. Remove assertion that
off is integer_zerop, pass tree_to_uhwi (off) instead of 0 to the
cxx_fold_indirect_ref_1 call.
* cp-tree.h (publicly_virtually_derived_p): Declare.
(reduced_constant_expression_p): Add another tree argument defaulted
to NULL_TREE.
* method.cc (synthesized_method_walk): Don't clear *constexpr_p
if there are virtual bases for C++26.
* class.cc (build_base_path): Compute fixed_type_p and
virtual_access before checks for build_simple_base_path instead of
after that and conditional cp_build_addr_expr. Use build_simple_path
if !virtual_access even when v_binfo is non-NULL.
(layout_virtual_bases): For build_base_field calls use
access_public_node rather than access_private_node if
publicly_virtually_derived_p.
(build_vtbl_initializer): Revert 2018-09-18 and 2018-12-11 changes.
(publicly_virtually_derived_p): New function.
2025-06-27 Jason Merrill <jason@redhat.com>
* class.cc (fixed_type_or_null): Handle class-type CALL_EXPR.
* parser.cc (cp_parser_binary_expression): Fix decltype_p handling.
2025-06-27 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/98735
PR c++/118904
* cp-gimplify.cc (source_location_id): Remove.
(fold_builtin_source_location): Use generate_internal_label.
* module.cc (enum tree_tag): Add 'tt_internal_id' enumerator.
(trees_out::tree_value): Adjust assertion, write definitions
of uncontexted VAR_DECLs.
(trees_in::tree_value): Read variable definitions.
(trees_out::tree_node): Write internal labels, adjust assert.
(trees_in::tree_node): Read internal labels.
2025-06-27 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120040
* constexpr.cc (cxx_eval_constant_expression): Handle TYPE_NAME
now being a TYPE_DECL rather than just an IDENTIFIER_NODE.
* init.cc (build_new_constexpr_heap_type): Build a TYPE_DECL for
the returned type; mark the type as artificial.
* module.cc (trees_out::type_node): Add some assertions.
2025-06-27 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/98735
PR c++/120040
* module.cc (trees_out::tree_value): Write TYPE_DECLs.
(trees_in::tree_value): Read TYPE_DECLs.
(trees_out::tree_node): Support uncontexted TYPE_DECLs, and
ensure that all parts of a by-value decl are marked for
streaming.
(trees_out::get_merge_kind): Treat members of uncontexted types
as always unique.
2025-06-27 Nathaniel Shead <nathanieloshead@gmail.com>
* decl.cc (grokfndecl): Add explanation of how to attach to
global module.
2025-06-26 David Malcolm <dmalcolm@redhat.com>
* error.cc (cxx_initialize_diagnostics): Use
diagnostic_context::set_adjust_diagnostic_info_callback.
2025-06-26 Jakub Jelinek <jakub@redhat.com>
* cp-trait.def: Implement C++26 P2830R10 - Constexpr Type Ordering.
(TYPE_ORDER): New.
* method.cc (type_order_value): Define.
* cp-tree.h (type_order_value): Declare.
* semantics.cc (trait_expr_value): Use gcc_unreachable also
for CPTK_TYPE_ORDER, adjust comment.
(finish_trait_expr): Handle CPTK_TYPE_ORDER.
* constraint.cc (diagnose_trait_expr): Likewise.
2025-06-25 Martin Jambor <mjambor@suse.cz>
* coroutines.h (class cp_coroutine_transform): Remove member
orig_fn_body.
2025-06-24 Jakub Jelinek <jakub@redhat.com>
PR c++/120773
* decl.cc (grokfndecl): Implement C++26 P3618R0 - Allow attaching
main to the global module. Only pedwarn for current_lang_name
other than lang_name_cplusplus and adjust pedwarn wording.
2025-06-23 Tobias Burnus <tburnus@baylibre.com>
* parser.cc (OACC_WAIT_CLAUSE_MASK): Ass if clause.
2025-06-18 Iain Sandoe <iain@sandoe.co.uk>
PR c++/115908
PR c++/118074
PR c++/95615
* coroutines.cc (coro_frame_refcount_id): New.
(coro_init_identifiers): Initialise coro_frame_refcount_id.
(build_actor_fn): Set up initial_await_resume_called. Handle
decrementing of the frame reference count. Return directly to
the caller if that is non-zero.
(cp_coroutine_transform::wrap_original_function_body): Use a
conditional eh-only cleanup around the initial await expression
to release the body use on exception before initial await
resume.
(cp_coroutine_transform::build_ramp_function): Wrap the called
body in a cleanup that releases a use of the frame when we
return to the ramp. Implement frame, promise and argument copy
destruction via conditional cleanups when the frame use count
is zero.
2025-06-17 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc (struct coroutine_info): Update comments.
(struct coro_aw_data): Remove self_handle and add in
information to create the handle in lowering.
(expand_one_await_expression): Build a temporary coroutine
handle.
(build_actor_fn): Remove reference to the frame copy of the
coroutine handle.
(cp_coroutine_transform::wrap_original_function_body): Remove
reference to the frame copy of the coroutine handle.
2025-06-17 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc (analyze_expression_awaits): Elide assume
attributes containing await expressions, since these have
side effects. Emit a diagnostic that this has been done.
2025-06-17 Jason Merrill <jason@redhat.com>
PR c++/120678
* cp-trait.def (IS_TRIVIALLY_DESTRUCTIBLE): Fix nargs.
2025-06-17 Jason Merrill <jason@redhat.com>
* module.cc (module_state::write_diagnostic_classification): New.
(module_state::write_begin): Call it.
(module_state::read_diagnostic_classification): New.
(module_state::read_initial): Call it.
(dk_string, dump_dc_change): New.
2025-06-17 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc (finish_co_await_expr): Do not allow in an
unevaluated context.
(finish_co_yield_expr): Likewise.
2025-06-17 Iain Sandoe <iain@sandoe.co.uk>
PR c++/120273
* coroutines.cc
(cp_coroutine_transform::wrap_original_function_body): Use
function start and end locations when synthesizing code.
(cp_coroutine_transform::cp_coroutine_transform): Set the
function end location.
2025-06-16 Jason Merrill <jason@redhat.com>
* constraint.cc (failed_completions_map): New.
(note_failed_type_completion): Rename from
note_failed_type_completion_for_satisfaction. Add
-Wsfinae-incomplete handling.
(failed_completion_location): New.
* class.cc (finish_struct_1): Add -Wsfinae-incomplete warning.
* decl.cc (require_deduced_type): Adjust.
(finish_function): Add -Wsfinae-incomplete warning.
* typeck.cc (complete_type_or_maybe_complain): Adjust.
(cxx_sizeof_or_alignof_type): Call note_failed_type_completion.
* pt.cc (dependent_template_arg_p): No longer static.
* cp-tree.h: Adjust.
2025-06-16 yxj-github-437 <2457369732@qq.com>
* parser.cc (cp_parser_asm_operand_list): Check for unexpanded
parameter packs.
2025-06-14 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc (build_co_await): Identify diagnostics
for initial and final await expressions.
(cp_coroutine_transform::wrap_original_function_body): Do
not handle initial and final await expressions here ...
(cp_coroutine_transform::apply_transforms): ... handle them
here and avoid duplicate diagnostics.
* coroutines.h: Declare inital and final await expressions
in the transform class. Save the function closing brace
location.
2025-06-13 Iain Sandoe <iain@sandoe.co.uk>
PR c++/116775
* coroutines.cc (analyze_expression_awaits): When we see
a builtin_constant_p call, and that contains one or more
await expressions, then replace the call with its result
and discard the unevaluated operand.
2025-06-13 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc (build_actor_fn): Set can_throw.
2025-06-12 Alfie Richards <alfie.richards@arm.com>
* decl.cc (maybe_version_functions): Change record_function_versions
call to add_function_version.
2025-06-12 Jakub Jelinek <jakub@redhat.com>
* cp-tree.h (union lang_type::maybe_objc_info): New type.
(struct lang_type): Use union maybe_objc_info info member
instead of tree objc_info.
* lex.cc (copy_lang_type): Use sizeof (struct lang_type)
just for ObjC++ and otherwise offsetof (struct lang_type, info).
(maybe_add_lang_type_raw): Likewise.
(cxx_make_type): Formatting fix.
2025-06-09 Iain Sandoe <iain@sandoe.co.uk>
PR c++/120495
PR c++/115605
* pt.cc (lookup_template_class): Honour provided namespace contexts
when looking up class templates.
2025-06-06 Jason Merrill <jason@redhat.com>
PR c++/120555
* decl2.cc (fn_being_defined, fn_template_being_defined): New.
(mark_used): Check fn_template_being_defined.
2025-06-05 Patrick Palka <ppalka@redhat.com>
PR c++/120224
* pt.cc (tsubst_function_decl): Return error_mark_node if
substituting into the formal parameter list failed.
(tsubst_decl) <case PARM_DECL>: Return error_mark_node
upon TREE_TYPE substitution failure, when in a SFINAE
context. Return error_mark_node upon DECL_CHAIN substitution
failure.
2025-06-05 Patrick Palka <ppalka@redhat.com>
PR c++/118340
* constexpr.cc (maybe_constant_value): First try looking up each
operand in the cv_cache and reusing the result.
2025-06-05 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc (analyze_fn_parms): Move from free function..
(cp_coroutine_transform::analyze_fn_parms):... to method.
(cp_coroutine_transform::apply_transforms): Adjust call to
analyze_fn_parms.
* coroutines.h: Declare analyze_fn_parms.
2025-06-05 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc (expand_one_await_expression): Set the
initial_await_resume_called flag here.
(build_actor_fn): Populate the frame accessor for the
initial_await_resume_called flag.
(cp_coroutine_transform::wrap_original_function_body): Do
not modify the initial_await expression to include the
initial_await_resume_called flag here.
2025-06-04 Jason Merrill <jason@redhat.com>
PR c++/120502
* cp-gimplify.cc (cp_fold_r) [TARGET_EXPR]: Do constexpr evaluation
before genericize.
* constexpr.cc (cxx_eval_store_expression): Add comment.
2025-06-03 Jason Merrill <jason@redhat.com>
* name-lookup.h (operator|, operator|=): Define for WMB_Flags.
2025-06-02 Jason Merrill <jason@redhat.com>
PR c++/107600
* method.cc (destructible_expr): Fix refs and arrays of unknown
bound.
2025-06-02 Jason Merrill <jason@redhat.com>
PR c++/120506
* constexpr.cc (cxx_eval_outermost_constant_expr): Always check
CONSTRUCTOR_NO_CLEARING.
2025-06-02 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc (build_actor_fn): Remove an unused
label, guard the frame deallocation correctly, use
simpler APIs to build if and return statements.
2025-06-02 Iain Sandoe <iain@sandoe.co.uk>
PR c++/118903
* constexpr.cc (potential_constant_expression_1): Emit
an error when co_await et. al. are used in constexpr
contexts.
2025-06-02 Iain Sandoe <iain@sandoe.co.uk>
* error.cc (dump_expr): Add co_await, co_yield and co_return.
2025-06-02 Jason Merrill <jason@redhat.com>
PR c++/107600
* method.cc (destructible_expr): Handle non-classes.
(constructible_expr): Check for abstract class here...
(is_xible_helper): ...not here.
2025-06-02 Jason Merrill <jason@redhat.com>
PR c++/107600
* semantics.cc (trait_expr_value) [CPTK_HAS_TRIVIAL_DESTRUCTOR]:
Add cp_unevaluated.
2025-06-02 Sandra Loosemore <sloosemore@baylibre.com>
* cp-tree.h (maybe_convert_cond): Declare.
* parser.cc (cp_parser_omp_context_selector): Call
maybe_convert_cond and fold_build_cleanup_point_expr on the
expression for OMP_TRAIT_PROPERTY_BOOL_EXPR.
* pt.cc (tsubst_omp_context_selector): Likewise.
* semantics.cc (maybe_convert_cond): Remove static declaration.
2025-05-30 Jason Merrill <jason@redhat.com>
PR c++/113563
* lambda.cc (lambda_capture_field_type): Handle 'this' normally.
(build_capture_proxy): Special-case 'this' by-ref capture more.
(nonlambda_method_basetype): Look through xobj lambdas.
2025-05-30 Julian Brown <julian@codesourcery.com>
Tobias Burnus <tburnus@baylibre.com>
* constexpr.cc (reduced_constant_expression_p): Add OMP_DECLARE_MAPPER
case.
(cxx_eval_constant_expression, potential_constant_expression_1):
Likewise.
* cp-gimplify.cc (cxx_omp_finish_mapper_clauses): New function.
* cp-objcp-common.h (LANG_HOOKS_OMP_FINISH_MAPPER_CLAUSES,
LANG_HOOKS_OMP_MAPPER_LOOKUP, LANG_HOOKS_OMP_EXTRACT_MAPPER_DIRECTIVE,
LANG_HOOKS_OMP_MAP_ARRAY_SECTION): Define langhooks.
* cp-tree.h (lang_decl_base): Add omp_declare_mapper_p field. Recount
spare bits comment.
(DECL_OMP_DECLARE_MAPPER_P): New macro.
(omp_mapper_id): Add prototype.
(cp_check_omp_declare_mapper): Add prototype.
(omp_instantiate_mappers): Add prototype.
(cxx_omp_finish_mapper_clauses): Add prototype.
(cxx_omp_mapper_lookup): Add prototype.
(cxx_omp_extract_mapper_directive): Add prototype.
(cxx_omp_map_array_section): Add prototype.
* decl.cc (check_initializer): Add OpenMP declare mapper support.
(cp_finish_decl): Set DECL_INITIAL for OpenMP declare mapper var decls
as appropriate.
* decl2.cc (mark_used): Instantiate OpenMP "declare mapper" magic var
decls.
* error.cc (dump_omp_declare_mapper): New function.
(dump_simple_decl): Use above.
* parser.cc (cp_parser_omp_clause_map): Add KIND parameter. Support
"mapper" modifier.
(cp_parser_omp_all_clauses): Add KIND argument to
cp_parser_omp_clause_map call.
(cp_parser_omp_target): Call omp_instantiate_mappers before
finish_omp_clauses.
(cp_parser_omp_declare_mapper): New function.
(cp_parser_omp_declare): Add "declare mapper" support.
* pt.cc (tsubst_decl): Adjust name of "declare mapper" magic var decls
once we know their type.
(tsubst_omp_clauses): Call omp_instantiate_mappers before
finish_omp_clauses, for target regions.
(tsubst_expr): Support OMP_DECLARE_MAPPER nodes.
(instantiate_decl): Instantiate initialiser (i.e definition) for OpenMP
declare mappers.
* semantics.cc (gimplify.h): Include.
(omp_mapper_id, omp_mapper_lookup, omp_extract_mapper_directive,
cxx_omp_map_array_section, cp_check_omp_declare_mapper): New functions.
(finish_omp_clauses): Delete GOMP_MAP_PUSH_MAPPER_NAME and
GOMP_MAP_POP_MAPPER_NAME artificial clauses.
(omp_target_walk_data): Add MAPPERS field.
(finish_omp_target_clauses_r): Scan for uses of struct/union/class type
variables.
(finish_omp_target_clauses): Create artificial mapper binding clauses
for used structs/unions/classes in offload region.
2025-05-29 David Malcolm <dmalcolm@redhat.com>
* error.cc (cxx_format_postprocessor::clone): Update to use
unique_ptr.
(cxx_dump_pretty_printer::cxx_dump_pretty_printer): Likewise.
(cxx_initialize_diagnostics): Likewise.
2025-05-29 Jason Merrill <jason@redhat.com>
PR c++/113563
* lambda.cc (build_capture_proxy): Check pointerness of the
member, not the proxy type.
(lambda_expr_this_capture): Don't assume current_class_ref.
(nonlambda_method_basetype): Likewise.
* semantics.cc (finish_non_static_data_member): Don't assume
TREE_TYPE (object) is set.
(finish_this_expr): Check current_class_type for lambda,
not current_class_ref.
2025-05-29 Iain Sandoe <iain@sandoe.co.uk>
PR c++/109283
* coroutines.cc (find_any_await): Only save the statement
pointer if the caller passes a place for it.
(flatten_await_stmt): When checking that ternary expressions
have been handled, also check that they contain a co_await.
2025-05-29 Jason Merrill <jason@redhat.com>
* decl.cc (start_decl): Also set invalid_constexpr
for maybe_constexpr_fn.
* parser.cc (cp_parser_jump_statement): Likewise.
* constexpr.cc (potential_constant_expression_1): Ignore
goto to an artificial label.
2025-05-29 Sandra Loosemore <sloosemore@baylibre.com>
* parser.cc (cp_parser_omp_metadirective): Do not call
cp_parser_skip_to_end_of_block_or_statement after an error.
2025-05-29 Sandra Loosemore <sloosemore@baylibre.com>
PR c/120180
* parser.cc (cp_parser_omp_metadirective): Only consume the
token if it is the expected close paren.
2025-05-29 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc (analyze_fn_parms): No longer
create a parameter copy guard var.
* coroutines.h (struct param_info): Remove the
entry for the parameter copy destructor guard.
2025-05-29 Iain Sandoe <iain@sandoe.co.uk>
PR c++/120453
* cp-tree.h (DECL_RAMP_P): New.
* typeck.cc (check_return_expr): Use DECL_RAMP_P instead
of DECL_RAMP_FN.
2025-05-29 Jason Merrill <jason@redhat.com>
PR c++/107600
* cp-trait.def (IS_DESTRUCTIBLE, IS_NOTHROW_DESTRUCTIBLE)
(IS_TRIVIALLY_DESTRUCTIBLE): New.
* constraint.cc (diagnose_trait_expr): Explain them.
* method.cc (destructible_expr): New.
(is_xible_helper): Use it.
* semantics.cc (finish_trait_expr): Handle new traits.
(trait_expr_value): Likewise. Complain about asking
whether a deleted dtor is trivial.
2025-05-28 Jason Merrill <jason@redhat.com>
* module.cc (module_state::write_namespaces): Write
using-directives.
(module_state::read_namespaces): And read them.
* name-lookup.cc (add_using_namespace): Add overload. Build a
USING_DECL for modules.
(name_lookup::search_usings, name_lookup::queue_usings)
(using_directives_contain_std_p): Strip the USING_DECL.
* name-lookup.h: Declare it.
* parser.cc (cp_parser_import_declaration): Set MK_EXPORTING
for export import.
2025-05-27 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc (cp_coroutine_transform::build_ramp_function):
Replace TRUTH_AND_EXPR with TRUTH_ANDIF_EXPR in three places.
2025-05-26 Tobias Burnus <tburnus@baylibre.com>
PR c++/120413
* semantics.cc (finish_omp_target_clauses_r): Handle
BIND_EXPR with empty BIND_EXPR_BLOCK.
2025-05-26 Jason Merrill <jason@redhat.com>
* cp-tree.h: Declare tinst_dump_id.
* cp-objcp-common.cc (cp_register_dumps): Set it.
* pt.cc (push_tinst_level_loc): Dump it.
(reopen_tinst_level): Here too.
(tinst_complete_p): New.
(instantiate_pending_templates): Don't reopen_tinst_level for
already-complete instantiations.
2025-05-26 Jason Merrill <jason@redhat.com>
* cp-tree.h (class cxx_dump_pretty_printer): New.
* error.cc (cxx_dump_pretty_printer): Ctor/dtor definitions.
2025-05-25 Jason Merrill <jason@redhat.com>
* error.cc (dump_template_bindings): Correct skipping of
redundant bindings.
2025-05-23 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120363
* decl2.cc (get_tls_init_fn): Set context as global_namespace.
(get_tls_wrapper_fn): Likewise.
2025-05-23 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120414
* module.cc (trees_in::tree_node): Allow reading a USING_DECL
when streaming tt_data_member.
2025-05-23 Jason Merrill <jason@redhat.com>
* mangle.cc (mangle_decl_string): Don't push_tinst_level.
2025-05-22 Jason Merrill <jason@redhat.com>
PR c++/120935
* cp-gimplify.cc (cp_fold): Check always_inline.
2025-05-21 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc
(cp_coroutine_transform::build_ramp_function): Replace ramp
cleanup try-catch block with eh-only cleanup statements.
2025-05-21 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc
(cp_coroutine_transform::build_ramp_function): Use
decltype(auto) to determine the type of the temporary
get_return_object.
2025-05-21 Iain Sandoe <iain@sandoe.co.uk>
PR c++/119916
* coroutines.cc
(cp_coroutine_transform::wrap_original_function_body): Do not
initialise initial_await_resume_called here...
(cp_coroutine_transform::build_ramp_function): ... but here.
When the coroutine is not void, initialize a GRO object from
promise.get_return_object(). Use this as the argument to the
return expression. Use a regular cleanup for the GRO, since
it is ramp-local.
2025-05-20 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120349
* module.cc (trees_out::core_bools): Always mark vtables as
DECL_EXTERNAL.
2025-05-20 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120013
* module.cc (trees_in::install_entity): Handle re-registering
the inner TYPE_DECL of a partial specialisation.
2025-05-20 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120350
* rtti.cc (get_tinfo_decl_direct): Mark TREE_ADDRESSABLE.
2025-05-16 Ville Voutilainen <ville.voutilainen@gmail.com>
* cp-gimplify.cc (cp_fold): Do the conversion unconditionally, even for same-type cases.
2025-05-16 Iain Sandoe <iain@sandoe.co.uk>
* typeck.cc (check_return_expr): Suppress conversions for NVRO
in coroutine ramp functions.
2025-05-16 Iain Sandoe <iain@sandoe.co.uk>
* decl.cc (poplevel): Set BLOCK_OUTER_CURLY_BRACE_P on the
body block for functions with no subblocks.
2025-05-16 Nathaniel Shead <nathanieloshead@gmail.com>
* module.cc (importer_interface): Adjust flags.
(get_importer_interface): Rename flags.
(trees_out::core_bools): Clean up special casing.
(trees_out::write_function_def): Rename flag.
2025-05-15 Patrick Palka <ppalka@redhat.com>
PR c++/120161
* pt.cc (unify) <case RECORD_TYPE>: When comparing specializations
of a non-primary template, still perform a type comparison.
2025-05-15 Jason Merrill <jason@redhat.com>
* module.cc (trees_out::lang_decl_bools): Stream implicit_constexpr.
(trees_in::lang_decl_bools): Likewise.
(trees_in::is_matching_decl): Check it.
2025-05-15 Jason Merrill <jason@redhat.com>
PR c++/99599
* pt.cc (conversion_may_instantiate_p): Make sure
classes are complete.
2025-05-14 Ville Voutilainen <ville.voutilainen@gmail.com>
* cp-gimplify.cc (cp_fold): Remove a remnant comment.
2025-05-14 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120125
* module.cc (trees_out::write_function_def): Only set
DECL_NOT_REALLY_EXTERN if the importer might need to emit it.
* optimize.cc (maybe_thunk_body): Don't assume 'fn' has a cgraph
node created.
2025-05-14 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119864
* decl2.cc (start_objects): Only use module initialized for
host.
(c_parse_final_cleanups): Don't always create an OMP offload
init function in modules.
2025-05-14 Nathaniel Shead <nathanieloshead@gmail.com>
* name-lookup.cc (lookup_imported_hidden_friend): Add back
lazy_load_pendings with comment.
2025-05-14 Ville Voutilainen <ville.voutilainen@gmail.com>
* cp-gimplify.cc (cp_fold): Add to_underlying.
2025-05-14 Owen Avery <powerboat9.gamer@gmail.com>
Jason Merrill <jason@redhat.com>
* method.cc (synthesized_method_walk): Check whether
-Wvirtual-move-assign is enabled at the location of a base
class's move assignment operator.
2025-05-12 Jason Merrill <jason@redhat.com>
PR c++/120012
* class.cc (check_non_pod_aggregate): Check is_empty_class.
2025-05-10 Jason Merrill <jason@redhat.com>
PR c++/120204
* pt.cc (tsubst_baselink): Always error if lookup fails.
2025-05-09 Jason Merrill <jason@redhat.com>
* decl2.cc (determine_visibility): Ignore args for friend templates.
2025-05-09 Jason Merrill <jason@redhat.com>
PR c++/99599
PR c++/120185
* class.cc (type_has_converting_constructor): Handle null parm.
* pt.cc (fn_type_unification): Skip early non-dep checking if
no concepts.
2025-05-08 Jason Merrill <jason@redhat.com>
PR c++/99599
* cp-tree.h (type_has_converting_constructor): Declare.
* class.cc (type_has_converting_constructor): New.
* pt.cc (conversion_may_instantiate_p): Don't check completeness.
2025-05-05 Simon Martin <simon@nasilyan.com>
* cp-tree.h (parsing_default_capturing_generic_lambda_in_template):
Remove obsolete prototype.
2025-05-02 Jason Merrill <jason@redhat.com>
PR c++/115207
* decl.cc (cp_finish_decl): Call layout_decl after CTAD.
2025-05-02 Jason Merrill <jason@redhat.com>
PR c++/120012
* cp-tree.h (struct lang_type): Add non_aggregate_pod.
(CLASSTYPE_NON_AGGREGATE_POD): New.
* class.cc (check_bases_and_members): Set it.
(check_non_pod_aggregate): Diagnose it.
2025-05-02 Jakub Jelinek <jakub@redhat.com>
PR c++/117827
* init.cc (build_vec_init): Push to *cleanup_flags clearing of rval
instead of setting of iterator to maxindex.
2025-05-01 Patrick Palka <ppalka@redhat.com>
* constexpr.cc (explain_invalid_constexpr_fn): In the
DECL_CONSTRUCTOR_P branch pass the non-genericized body to
require_potential_constant_expression.
2025-05-01 Patrick Palka <ppalka@redhat.com>
PR c++/119034
PR c++/68942
* pt.cc (tsubst_expr) <case CALL_EXPR>: Revert PR68942 fix.
* semantics.cc (finish_call_expr): Ensure the callee of an
ADL-enabled call is wrapped in an OVERLOAD.
2025-05-01 Jason Merrill <jason@redhat.com>
* Make-lang.in: Don't pass the full path to gperf.
* std-name-hint.h: Regenerate.
2025-05-01 Jason Merrill <jason@redhat.com>
PR c++/119162
* constexpr.cc (find_deleted_heap_var): Remove.
(cxx_eval_call_expression): Don't call it. Don't set TREE_STATIC on
heap vars.
(cxx_eval_outermost_constant_expr): Don't mess with varpool.
2025-04-30 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120023
* module.cc (depset::hash::find_dependencies): Also call
add_deduction_guides when walking one.
2025-04-30 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119938
* pt.cc (get_template_parm_object): When !check_init, add assert
that expr really is constant and mark decl as such.
2025-04-30 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119551
PR c++/119996
* module.cc (depset::hash::make_dependency): Also mark inline
variables referencing TU-local values as exposures here.
(depset::hash::finalize_dependencies): Add error message for
inline variables.
2025-04-30 Patrick Palka <ppalka@redhat.com>
PR c++/119981
PR c++/119378
* pt.cc (tsubst) <case UNBOUND_CLASS_TEMPLATE>: Substitute
into template parameter list first. When substituting the
context, only set processing_template_decl if there's more
than one level of introduced template parameters.
2025-04-28 David Malcolm <dmalcolm@redhat.com>
* parser.cc: Include "analyzer/analyzer-language.h".
(ana::cp_translation_unit): New class.
(cp_parser_translation_unit): Add call to
ana::on_finish_translation_unit.
2025-04-28 David Malcolm <dmalcolm@redhat.com>
* cxx-pretty-print.cc: Drop include of "make-unique.h".
Replace uses of ::make_unique with std::make_unique.
* error.cc: Likewise.
* name-lookup.cc: Likewise.
* parser.cc: Likewise.
2025-04-28 David Malcolm <dmalcolm@redhat.com>
* name-lookup.cc: Include "make-unique.h".
(namespace_hints::convert_candidates_to_name_hint): Use
::make_unique rather than "new" when making
show_candidate_location and suggest_alternatives.
(namespace_hints::maybe_decorate_with_limit): Likewise when making
namespace_limit_reached.
(suggest_alternatives_for_1): Likewise when making
suggest_missing_option.
(maybe_suggest_missing_std_header): Likewise when making
missing_std_header.
(macro_use_before_def::maybe_make): Use std::unique_ptr.
(macro_use_before_def::macro_use_before_def): Make public.
(lookup_name_fuzzy): Use ::make_unique rather than "new" when
making suggest_missing_header.
* parser.cc: Include "make-unique.h".
(cp_parser_error_1): Use ::make_unique rather than "new" when
making suggest_missing_header.
2025-04-27 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119939
* module.cc (trees_out::lang_decl_vals): Also stream
lang->u.fn.context when DECL_UNIQUE_FRIEND_P.
(trees_in::lang_decl_vals): Likewise.
2025-04-27 H.J. Lu <hjl.tools@gmail.com>
PR middle-end/112877
* call.cc (type_passed_as): Remove the
targetm.calls.promote_prototypes call.
(convert_for_arg_passing): Likewise.
* typeck.cc (cxx_safe_arg_type_equiv_p): Likewise.
2025-04-25 Jason Merrill <jason@redhat.com>
PR c++/119764
PR c++/87185
* lambda.cc (insert_capture_proxy): Handle noexcept lambda.
(prune_lambda_captures): Likewise, in ABI v21.
2025-04-25 Jason Merrill <jason@redhat.com>
* cp-tree.h (struct tinst_level): Add had_errors bit.
* pt.cc (push_tinst_level_loc): Clear it.
(pop_tinst_level): Set it.
(reopen_tinst_level): Check it.
(instantiate_pending_templates): Call limit_bad_template_recursion.
2025-04-24 Jason Merrill <jason@redhat.com>
PR c++/116954
* contracts.cc (remove_contract_attributes): Return early if
not enabled.
2025-04-22 Nathaniel Shead <nathanieloshead@gmail.com>
* name-lookup.cc (lookup_imported_hidden_friend): Remove
unnecessary lazy_load_pendings.
2025-04-22 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119863
* name-lookup.cc (get_mergeable_namespace_binding): Remove
no-longer-used function.
(lookup_imported_hidden_friend): Also look for hidden imported
decls in an attached decl's module.
2025-04-21 Jason Merrill <jason@redhat.com>
* constexpr.cc (cxx_eval_outermost_constant_expr): Move
verify_constant later.
2025-04-21 Jason Merrill <jason@redhat.com>
PR c++/118775
* constexpr.cc (cxx_eval_call_expression): Add assert.
(fold_to_constant): Handle processing_template_decl.
* init.cc (build_new_1): Use fold_to_constant.
2025-04-21 Jason Merrill <jason@redhat.com>
PR c++/99456
* constexpr.cc (cxx_eval_constant_expression): Check strict
instead of manifestly_const_eval.
(maybe_constant_init_1): Be strict for static constexpr vars.
2025-04-19 Jason Merrill <jason@redhat.com>
* coroutines.cc (coro_build_expr_stmt)
(coro_build_cvt_void_expr_stmt): Remove.
(build_actor_fn): Use finish_expr_stmt.
* semantics.cc (finish_expr_stmt): Avoid wrapping statement in
EXPR_STMT.
(finish_stmt_expr_expr): Add comment.
2025-04-17 Jason Merrill <jason@redhat.com>
* constexpr.cc (is_valid_constexpr_fn): Improve diagnostic.
2025-04-17 Jason Merrill <jason@redhat.com>
* constexpr.cc (cxx_eval_outermost_constant_expr): Give both
expression and allocation location in allocated storage diagnostics.
2025-04-17 Jason Merrill <jason@redhat.com>
* name-lookup.cc (name_lookup::preserve_state): Fix reserve call.
* rtti.cc (get_tinfo_desc): Use vec_safe_grow_cleared.
2025-04-17 Jason Merrill <jason@redhat.com>
* semantics.cc (finish_type_pack_element): Add more info
to diagnostics.
2025-04-17 Jason Merrill <jason@redhat.com>
* decl.cc (cp_make_fname_decl): Prevent silent failure.
2025-04-17 Jason Merrill <jason@redhat.com>
* lex.cc (unqualified_name_lookup_error): Handle 'requires' better.
2025-04-17 Jason Merrill <jason@redhat.com>
PR c++/113360
* cp-tree.h (struct language_function): Add erroneous bit.
* constexpr.cc (explain_invalid_constexpr_fn): Return if set.
(cxx_eval_call_expression): Quiet if set.
* parser.cc (cp_parser_function_definition_after_declarator)
* pt.cc (instantiate_body): Set it.
2025-04-16 Jason Merrill <jason@redhat.com>
PR c++/114772
PR c++/101180
* pt.cc (apply_late_template_attributes): Also override
target_option_current_node.
2025-04-16 Jason Merrill <jason@redhat.com>
PR c++/116954
* contracts.cc (remove_contract_attributes): Preserve flags
on the attribute list.
2025-04-15 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119755
* lambda.cc (prune_lambda_captures): Remove pruned capture from
function's BLOCK_VARS and BIND_EXPR_VARS.
2025-04-15 Jason Merrill <jason@redhat.com>
PR c++/111075
* constexpr.cc (cxx_eval_call_expression): Allow trivial
call from a thunk.
2025-04-15 Patrick Palka <ppalka@redhat.com>
PR c++/119807
PR c++/112288
* pt.cc (tsubst_friend_function): Skip remapping an
existing specialization if it doesn't match the shape of
the new friend definition.
2025-04-15 Jason Merrill <jason@redhat.com>
PR c++/113835
* constexpr.cc (cxx_eval_outermost_constant_expr): Bail out early
for std::vector(N).
2025-04-14 Patrick Palka <ppalka@redhat.com>
PR c++/99214
* constraint.cc (satisfy_declaration_constraints): Pass the
original ARGS to push_tinst_level.
2025-04-13 Patrick Palka <ppalka@redhat.com>
PR c++/115639
* constexpr.cc (struct constexpr_call): Add NSDMIs to each
field. Replace 'result' data member with 3-element 'results'
array and a 'result' accessor function. Remove
'manifestly_const_eval' data member.
(constexpr_call_hasher::equal): Adjust after constexpr_call
layout change.
(cxx_eval_call_expression): Likewise. Define some local
variables closer to their first use. Use unknown_type_node
instead of NULL_TREE as the "in progress" result. After
successully evaluating a call with mce_unknown, also cache the
result in the corresponding mce_true and mce_false slots.
2025-04-13 Nathaniel Shead <nathanieloshead@gmail.com>
* module.cc (trees_in::is_matching_decl): Don't check for
mismatches when importing a DECL_MAYBE_DELETED function over one
that's already finished.
2025-04-13 Nathaniel Shead <nathanieloshead@gmail.com>
* module.cc (trees_in::is_matching_decl): Add custom errors for
different kinds of mismatches.
2025-04-12 Patrick Palka <ppalka@redhat.com>
PR c++/116416
* constexpr.cc (maybe_constant_init_1): Generalize type of
of manifestly_const_eval parameter from bool to mce_value.
(maybe_constant_init): Define 3-parameter version taking a
manifestly_const_eval instead of bool parameter.
(cxx_constant_init): Adjust.
* cp-gimplify.cc (cp_fold_r) <case TARGET_EXPR>: Pass mce_false
to maybe_constant_init during prvalue folding if ff_mce_false is
set.
* cp-tree.h (maybe_constant_init): Declare new overload.
2025-04-11 Jason Merrill <jason@redhat.com>
PR c++/114970
* cp-gimplify.cc (cp_build_init_expr_for_ctor): Suppress warnings on
return_this COMPOUND_EXPR.
2025-04-10 Jason Merrill <jason@redhat.com>
PR c++/119345
* pt.cc (add_extra_args): Also register a specialization
of the captured variable.
2025-04-10 Patrick Palka <ppalka@redhat.com>
PR c++/119687
* pt.cc (alias_ctad_tweaks): Use lkp_range / lkp_iterator
instead of ovl_iterator.
2025-04-10 Jakub Jelinek <jakub@redhat.com>
PR translation/119684
* error.cc (cp_print_error_function): Use G_ instead of _ for
pp_printf arguments.
(function_category): Use G_ instead of _.
(print_instantiation_full_context): Use G_ instead of _ in pp_verbatim
arguments.
(print_location): Likewise.
(print_instantiation_partial_context): Likewise.
(maybe_print_constexpr_context): Likewise.
(print_constrained_decl_info): Use G_() around pp_verbatim argument.
(print_concept_check_info): Likewise.
(print_constraint_context_head): Likewise.
(print_requires_expression_info): Likewise. Merge separate pp_verbatim
"in requirements " and "with " into one with conditional messages.
2025-04-10 Jason Merrill <jason@redhat.com>
PR c++/119175
* mangle.cc (decl_mangling_context): Look through lambda type.
2025-04-09 Patrick Palka <ppalka@redhat.com>
PR c++/119574
* pt.cc (add_extra_args): Remove checking assert.
2025-04-09 Jason Merrill <jason@redhat.com>
PR c++/118698
* constraint.cc (struct norm_info): Add tf_partial.
* pt.cc (any_template_parm_r): Handle LAMBDA_EXPR_EXTRA_ARGS.
2025-04-08 Jason Merrill <jason@redhat.com>
PR c++/117530
* pt.cc (instantiate_template): Check retrieve_specialization after
tsubst.
2025-04-07 Jason Merrill <jason@redhat.com>
PR c++/119652
* constexpr.cc (cxx_eval_outermost_constant_expr): Also don't add a
TARGET_EXPR around AGGR_INIT_EXPR.
2025-04-06 Patrick Palka <ppalka@redhat.com>
PR c++/118626
* pt.cc (maybe_dependent_member_ref): Restrict TYPENAME_TYPE
shortcut to non-typedef TYPE_DECL.
2025-04-06 Patrick Palka <ppalka@redhat.com>
PR c++/118626
* pt.cc (maybe_dependent_member_ref): Substitute and return the
stripped type if we decided to not rewrite it directly.
2025-04-05 Patrick Palka <ppalka@redhat.com>
PR c++/118249
* constexpr.cc (potential_constant_expression_1)
<case INDIRECT_REF>: Remove obsolete *this handling.
2025-04-05 Jason Merrill <jason@redhat.com>
PR c++/118629
* name-lookup.cc (pushdecl_outermost_localscope): Look for an
sk_block.
2025-04-04 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119564
* decl.cc (cp_tree_node_structure): Add TU_LOCAL_ENTITY; fix
formatting.
2025-04-04 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119608
* module.cc (trees_out::decl_node): Maybe require by-value
walking not just when streaming.
2025-04-04 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119462
* module.cc (trees_in::is_matching_decl): Propagate exception
spec and constexpr to DECL_MAYBE_DELETED; clear if appropriate.
2025-04-04 Jason Merrill <jason@redhat.com>
PR c++/99546
PR c++/113925
PR c++/106976
PR c++/109961
PR c++/117336
* lambda.cc (build_lambda_object): Handle fake
requires-expr processing_template_decl.
* parser.cc (cp_parser_lambda_expression): Likewise.
2025-04-04 Patrick Palka <ppalka@redhat.com>
PR c++/117849
* semantics.cc (finish_id_expression_1): Allow use of constraint
variable outside an unevaluated context.
2025-04-03 Patrick Palka <ppalka@redhat.com>
PR c++/119387
* constexpr.cc (p2280_active_p): New.
(cxx_eval_constant_expression) <case VAR_DECL>: Use it to
restrict P2280 relaxations.
<case PARM_DECL>: Likewise.
2025-04-03 Jason Merrill <jason@redhat.com>
* module.cc (module_state::read_cluster)
(post_load_processing): Clear DECL_EXTERNAL if DECL_COMDAT.
2025-04-03 Jason Merrill <jason@redhat.com>
* call.cc (add_candidates): Re-lookup ne_fns if we move into
another namespace.
2025-04-03 Andrew Pinski <quic_apinski@quicinc.com>
Jakub Jelinek <jakub@redhat.com>
PR c++/119563
* call.cc (build_list_conv): Fix a typo in loop gathering
summary information from subsubconvs.
2025-04-02 Sandra Loosemore <sloosemore@baylibre.com>
PR middle-end/118965
* parser.cc (c_parser_omp_clause_init_modifiers): Adjust
error message.
(cp_parser_omp_clause_init): Remove code for recognizing clauses
without modifiers. Diagnose missing target/targetsync modifier.
(cp_finish_omp_declare_variant): Diagnose missing target/targetsync
modifier.
2025-04-01 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119551
* module.cc (trees_out::write_var_def): Only ignore non-inline
variable initializers.
2025-04-01 Nathaniel Shead <nathanieloshead@gmail.com>
* parser.cc (cp_parser_diagnose_invalid_type_name): Replace
fmodules-ts with fmodules.
(cp_parser_template_declaration): Likewise.
2025-04-01 Marek Polacek <polacek@redhat.com>
PR c++/119383
* call.cc (build_over_call): Use force_lvalue to ensure op= returns
an lvalue.
* cp-tree.h (force_lvalue): Declare.
* cvt.cc (force_lvalue): New.
* typeck.cc (cp_build_indirect_ref_1): Revert r15-8011.
2025-03-31 Jason Merrill <jason@redhat.com>
PR c++/119401
* pt.cc (regenerate_decl_from_template): Don't regenerate if the
signature involves a lambda.
2025-03-31 Jakub Jelinek <jakub@redhat.com>
PR c++/119518
* decl.cc (finish_function): Don't set TREE_NOTHROW for
functions with "noipa" attribute even when we can prove
they can't throw.
2025-03-29 Jason Merrill <jason@redhat.com>
* decl.cc (duplicate_decls): Don't clobber DECL_MODULE_IMPORT_P with
an injected friend.
* name-lookup.cc (check_module_override): Look at all reachable
decls in decl's originating module.
2025-03-29 Jason Merrill <jason@redhat.com>
PR c++/64500
PR c++/116285
* name-lookup.cc (push_to_top_level): Don't try to store_bindings
for namespace levels.
2025-03-29 Jakub Jelinek <jakub@redhat.com>
* name-lookup.cc (maybe_lazily_declare): Fix comment typo,
anout -> about.
2025-03-29 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/118961
* class.cc (copy_fndecl_with_name): Mark clones as non-abstract.
* cp-tree.h (setup_explicit_instantiation_definition_linkage):
Declare new function.
* module.cc (trees_in::read_var_def): Use it.
(module_state::read_cluster): Likewise.
* pt.cc (setup_explicit_instantiation_definition_linkage): New
function.
(mark_decl_instantiated): Use it.
2025-03-27 Tobias Burnus <tburnus@baylibre.com>
* cp-tree.h (cp_finish_omp_init_prefer_type): Add.
* decl.cc (omp_declare_variant_finalize_one): Call it.
* pt.cc (tsubst_attribute): Minor rebustification for OpenMP
append_args handling.
* semantics.cc (cp_omp_init_prefer_type_update): Rename to ...
(cp_finish_omp_init_prefer_type): ... this; remove static attribute
and return modified tree. Move clause handling to ...
(finish_omp_clauses): ... the caller.
2025-03-27 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/118920
* cp-tree.h (equal_abi_tags): Declare.
* mangle.cc (equal_abi_tags): Make external, fix comparison.
(tree_string_cmp): Make internal.
* module.cc (trees_in::check_abi_tags): New function.
(trees_in::decl_value): Use it.
(trees_in::is_matching_decl): Likewise.
2025-03-27 Nathaniel Shead <nathanieloshead@gmail.com>
Jason Merrill <jason@redhat.com>
PR c++/118920
* name-lookup.cc (lookup_imported_hidden_friend): Check for
module entity rather than just module import.
* module.cc (get_originating_module): Rename for_mangle parm to
global_m1.
* error.cc (dump_module_suffix): Don't decorate global module decls.
2025-03-26 Thomas Schwinge <tschwinge@baylibre.com>
Jason Merrill <jason@redhat.com>
* rtti.cc (throw_bad_typeid): Adjust implicit '__cxa_bad_typeid'
prototype to reality. Adjust all users.
2025-03-25 Simon Martin <simon@nasilyan.com>
PR c++/114525
* typeck2.cc (build_m_component_ref): Call cp_build_addr_expr
instead of build_address.
2025-03-25 yxj-github-437 <2457369732@qq.com>
* parser.cc (cp_parser_lambda_expression): Use cp_evaluated.
2025-03-24 Jason Merrill <jason@redhat.com>
* semantics.cc (finish_type_pack_element): Pass mce_true to
maybe_constant_value.
2025-03-23 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119154
* decl2.cc (vague_linkage_p): Revert gnu_linkage handling.
* module.cc (importer_interface): New enumeration.
(get_importer_interface): New function.
(trees_out::core_bools): Use it to determine interface.
(trees_in::is_matching_decl): Propagate gnu_inline handling onto
existing forward declarations.
(trees_in::read_var_def): Also note explicit instantiation
definitions of variable templates to be emitted.
2025-03-22 Patrick Palka <ppalka@redhat.com>
PR c++/119379
* pt.cc (tsubst_decl) <case TYPE_DECL>: Preserve structural-ness
of a partially instantiated typedef.
2025-03-21 Paul-Antoine Arras <parras@baylibre.com>
Tobias Burnus <tburnus@baylibre.com>
* parser.cc (cp_parser_omp_clause_init): Make addressable.
2025-03-21 Jason Merrill <jason@redhat.com>
* init.cc (throw_bad_array_new_length): Returns void.
2025-03-21 Thomas Schwinge <tschwinge@baylibre.com>
* rtti.cc (throw_bad_cast): Adjust implicit '__cxa_bad_cast'
prototype to reality.
2025-03-20 Richard Biener <rguenther@suse.de>
* module.cc (trees_out::core_bools): Convert scoped enum
explicitly.
2025-03-20 Jakub Jelinek <jakub@redhat.com>
PR c++/119370
* decl2.cc (set_context_for_auto_vars_r): New function.
(emit_partial_init_fini_fn): Call walk_tree with that function
on &init before walk_tree with copy_tree_body_r.
2025-03-19 Jason Merrill <jason@redhat.com>
PR c++/119316
* mangle.cc (write_expression) [NEW_EXPR]: Avoid using
compute_array_index_type.
(write_array_type): Add checking_assert.
2025-03-19 Jakub Jelinek <jakub@redhat.com>
PR target/118068
* cp-gimplify.cc (cp_fold_immediate): Use cp_walk_tree rather than
cp_walk_tree_without_duplicates.
(cp_fold_immediate_r): For IF_STMT_CONSTEVAL_P IF_STMT don't walk
into THEN_CLAUSE subtree, only ELSE_CLAUSE. For non-call related
stmts call data->pset.add and if it returns true, don't walk subtrees.
(cp_fold_r): Don't call cp_fold_immediate_r here.
(cp_fold_function): For C++20 or later call cp_walk_tree
with cp_fold_immediate_r callback first before calling cp_walk_tree
with cp_fold_r callback and call data.pset.empty () in between.
(cp_fully_fold_init): Likewise.
(cp_genericize_r) <case RETURN_EXPR>: Suppress -Wreturn-type warning
if RETURN_EXPR has erroneous argument.
2025-03-18 Marek Polacek <polacek@redhat.com>
PR c++/119344
* typeck.cc (cp_build_binary_op): Use cp_save_expr instead of save_expr.
2025-03-18 Jason Merrill <jason@redhat.com>
PR c++/119194
* decl2.cc (min_vis_expr_r) [ADDR_EXPR]: New case.
2025-03-18 Marek Polacek <polacek@redhat.com>
PR c++/118104
* pt.cc (use_pack_expansion_extra_args_p): Remove an assert.
2025-03-18 Jakub Jelinek <jakub@redhat.com>
PR c/116545
* parser.cc (cp_parser_statement): Call cp_parser_attributes_opt
rather than cp_parser_std_attribute_spec_seq.
(cp_parser_jump_statement): Diagnose gnu::musttail attributes
with no arguments.
2025-03-18 Patrick Palka <ppalka@redhat.com>
PR c++/119233
* pt.cc (mark_template_arguments_used): Also handle member
function pointers.
2025-03-14 Jakub Jelinek <jakub@redhat.com>
PR target/119120
* cp-gimplify.cc (cp_genericize_r): Set DECL_NOT_GIMPLE_REG_P
on {REAL,IMAG}PART_EXPR is_gimple_reg operand at -O0 if it is lhs
of a MODIFY_EXPR.
2025-03-12 Jakub Jelinek <jakub@redhat.com>
PR c++/119150
* constexpr.cc (cxx_eval_call_expression): For
DECL_IMMEDIATE_FUNCTION_P (fun) set manifestly_const_eval in new_ctx
and new_call to mce_true and set ctx to &new_ctx.
2025-03-12 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/118799
* module.cc (depset::hash::is_tu_local_entity): Only types,
functions, variables, and template (specialisations) can be
TU-local. Explicit type aliases are TU-local iff the type they
refer to are.
(module_state::write_namespaces): Allow unnamed namespaces in
named modules.
(check_module_decl_linkage): Error for all exported declarations
in an unnamed namespace.
2025-03-12 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/119154
* decl2.cc (vague_linkage_p): Don't treat gnu_inline functions
as having vague linkage.
* module.cc (trees_out::core_bools): Clear DECL_INTERFACE_KNOWN
for vague-linkage entities.
(read_var_def): Maybe set comdat linkage for imported var
definitions.
(module_state::read_cluster): Use expand_or_defer_fn instead of
ad-hoc linkage management.
(post_load_processing): Likewise.
* semantics.cc (expand_or_defer_fn_1): Don't forget that we had
a definition at all.
2025-03-12 Marek Polacek <polacek@redhat.com>
PR c++/117512
* typeck.cc (cp_build_indirect_ref_1): Only do the *&e -> e
folding if the result would be an lvalue.
2025-03-12 Simon Martin <simon@nasilyan.com>
PR c++/110584
* cp-tree.h (strip_normal_capture_proxy): Declare.
* lambda.cc (strip_normal_capture_proxy): New function to look
through normal capture proxies.
(build_capture_proxy): Use it.
* semantics.cc (process_outer_var_ref): Likewise.
2025-03-12 Marek Polacek <polacek@redhat.com>
PR c++/119134
* pt.cc (check_for_bare_parameter_packs): Check DECL_CONTEXT.
2025-03-12 Jakub Jelinek <jakub@redhat.com>
PR c++/119076
* module.cc (trees_out::start): Handle RAW_DATA_CST.
(trees_in::start): Likewise.
(trees_out::core_vals): Likewise.
(trees_in::core_vals): Likewise.
2025-03-11 Jason Merrill <jason@redhat.com>
PR c++/119162
* constexpr.cc (find_deleted_heap_var): New.
(cxx_eval_call_expression): Don't cache a
reference to heap_deleted.
2025-03-10 Nathaniel Shead <nathanieloshead@gmail.com>
* module.cc (trees_out::has_tu_local_dep): Also look at the
TI_TEMPLATE if we don't find a dep for a decl.
(depset::hash::is_tu_local_entity): Handle unnamed template
types, treat lambdas specially.
(is_exposure_of_member_type): New function.
(depset::hash::add_dependency): Use it.
(depset::hash::finalize_dependencies): Likewise.
2025-03-08 Sandra Loosemore <sloosemore@baylibre.com>
* parser.cc (cp_parser_asm_definition): Make comment more explicit.
(cp_parser_asm_operand_list): Likewise. Also correct the comment
block at the top of the function to reflect reality.
2025-03-08 Jason Merrill <jason@redhat.com>
Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/114630
PR c++/114795
* pt.cc (reopen_tinst_level): Set or clear MK_PURVIEW.
(mark_decl_instantiated): Call set_instantiating_module.
(instantiate_pending_templates): Save and restore module_kind so
it isn't affected by reopen_tinst_level.
2025-03-07 Marek Polacek <polacek@redhat.com>
PR c++/118775
* constexpr.cc (cxx_eval_call_expression): Check tree_fits_uhwi_p.
2025-03-07 Nathaniel Shead <nathanieloshead@gmail.com>
* constexpr.cc (potential_constant_expression_1): Handle
TU_LOCAL_ENTITY.
* pt.cc (expr_contains_tu_local_entity): Remove.
(function_contains_tu_local_entity): Remove.
(dependent_operand_p): Remove special handling for
TU_LOCAL_ENTITY.
(tsubst_expr): Handle TU_LOCAL_ENTITY when tsubsting OVERLOADs;
remove now-unnecessary extra handling.
(type_dependent_expression_p): Handle TU_LOCAL_ENTITY.
2025-03-06 Simon Martin <simon@nasilyan.com>
* cp-tree.h (processing_contract_condition): Fix comment typo,
paramter -> parameter.
* parser.cc (cp_parser_requires_expression): Fix comment typo,
delared -> declared.
2025-03-06 Jakub Jelinek <jakub@redhat.com>
PR c++/98533
PR c++/119123
* parser.cc (cp_parser_class_specifier): Update TYPE_FIELDS of
variant types in case cp_parser_late_parsing_default_args etc. change
TYPE_FIELDS on the main variant. Add switch_to_class lambda and
use it to simplify repeated class switching code.
2025-03-06 Jakub Jelinek <jakub@redhat.com>
PR c++/119138
* pt.cc (apply_late_template_attributes): Set p to NULL if
ATTR_FLAG_TYPE_IN_PLACE is not set in attr_flags.
(tsubst) <case POINTER_TYPE, case REFERENCE_TYPE, case ARRAY_TYPE>:
Reuse original type even if TYPE_ATTRIBUTES is non-NULL, but all
the attributes are non-dependent.
2025-03-06 Simon Martin <simon@nasilyan.com>
PR c++/117504
* call.cc (perform_implicit_conversion_flags): Don't call
mark_{l,r}value_use.
2025-03-05 Jason Merrill <jason@redhat.com>
Jakub Jelinek <jakub@redhat.com>
PR c++/117364
PR c++/118874
* coroutines.cc (cp_coroutine_transform::build_ramp_function): For
!aggregate_value_p return force return value into a local temp.
2025-03-05 Da Xie <xxie_xd@163.com>
PR c++/100589
* decl.cc (grokdeclarator): Issue an error for a declarator with
constrained auto type specifier and trailing return types. Include
function names if available.
2025-03-05 Simon Martin <simon@nasilyan.com>
PR c++/116740
* name-lookup.cc (set_identifier_type_value_with_scope): Don't
fail assert with ill-formed input.
2025-03-05 Jakub Jelinek <jakub@redhat.com>
PR c++/119102
* module.cc (enum streamed_extensions): Add SE_OPENMP_SIMD
and SE_OPENACC, change value of SE_OPENMP and SE_BITS.
(CASE_OMP_SIMD_CODE, CASE_OMP_CODE, CASE_OACC_CODE): Define.
(trees_out::start): Don't set SE_OPENMP extension for OMP_CLAUSE.
Set SE_OPENMP_SIMD extension for CASE_OMP_SIMD_CODE, SE_OPENMP
for CASE_OMP_CODE and SE_OPENACC for CASE_OACC_CODE.
(trees_in::start): Don't fail for OMP_CLAUSE with missing
SE_OPENMP extension. Do fail for CASE_OMP_SIMD_CODE and missing
SE_OPENMP_SIMD extension, or CASE_OMP_CODE and missing SE_OPENMP
extension, or CASE_OACC_CODE and missing SE_OPENACC extension.
(module_state::write_readme): Write all of SE_OPENMP_SIMD, SE_OPENMP
and SE_OPENACC extensions.
(module_state::read_config): Diagnose missing -fopenmp, -fopenmp-simd
and/or -fopenacc depending on extensions used.
2025-03-05 Jakub Jelinek <jakub@redhat.com>
* typeck.cc (check_return_expr): Fix comment typo, rom -> from.
2025-03-05 Jakub Jelinek <jakub@redhat.com>
PR c++/118787
* pt.cc (tsubst) <case ARRAY_TYPE>: Use return t; only if it doesn't
have any TYPE_ATTRIBUTES. Call apply_late_template_attributes.
<case POINTER_TYPE, case REFERENCE_TYPE>: Likewise. Formatting fix.
2025-03-04 Jason Merrill <jason@redhat.com>
PR c++/119073
* call.cc (extend_temps_r): Preserve types of COND_EXPR arms.
2025-03-04 Marek Polacek <polacek@redhat.com>
PR c++/109431
* cp-tree.h (range_expr_nelts): Declare.
* init.cc (build_vec_init): If the CONSTRUCTOR's index is a
RANGE_EXPR, use range_expr_nelts to count how many elements
were initialized.
2025-02-28 Marek Polacek <polacek@redhat.com>
PR c++/114913
PR c++/110822
* constexpr.cc (replace_decl_r): If we've replaced something
inside of an ADDR_EXPR, call cxx_mark_addressable and
recompute_tree_invariant_for_addr_expr on the resulting ADDR_EXPR.
2025-02-28 Marek Polacek <polacek@redhat.com>
PR c++/118986
* constexpr.cc (cxx_eval_call_expression): Check that the types match
before calling replace_decl, if not, set *non_constant_p.
(maybe_constant_init_1): Don't strip INIT_EXPR if it would change the
type of the expression.
2025-02-28 Patrick Palka <ppalka@redhat.com>
PR c++/119038
* lambda.cc (maybe_generic_this_capture): Consider xobj
member functions as well, not just iobj. Update function
comment.
2025-02-28 Jakub Jelinek <jakub@redhat.com>
PR c++/119045
* constexpr.cc (cxx_eval_store_expression) <case REALPART_EXPR>:
Assert that refs->is_empty () rather than probe == target.
(cxx_eval_store_expression) <case IMAGPART_EXPR>: Likewise.
2025-02-27 Marek Polacek <polacek@redhat.com>
PR c++/118928
* constexpr.cc (cxx_eval_constant_expression) <case GOTO_EXPR>: Remove
an assert.
2025-02-27 Marek Polacek <polacek@redhat.com>
PR c++/118516
* parser.cc (cp_parser_template_argument): Don't call
require_potential_constant_expression.
2025-02-25 Jakub Jelinek <jakub@redhat.com>
PR c++/118876
* cp-tree.h (register_dtor_fn): Add a bool argument defaulted to false.
* decl.cc (start_cleanup_fn): Add OMP_TARGET argument, use
"__omp_tcf" prefix rather than "__tcf" in that case. Add
"omp declare target" and "omp declare target nohost" attributes
to the fndecl.
(register_dtor_fn): Add OMP_TARGET argument, pass it down to
start_cleanup_fn.
* decl2.cc (one_static_initialization_or_destruction): Add OMP_TARGET
argument, pass it down to register_dtor_fn.
(emit_partial_init_fini_fn): Pass omp_target to
one_static_initialization_or_destruction.
(handle_tls_init): Pass false to
one_static_initialization_or_destruction.
2025-02-25 Jakub Jelinek <jakub@redhat.com>
PR c++/118923
* tree.cc (get_internal_target_expr): Use force_target_expr
instead of build_target_expr_with_type.
* typeck.cc (get_member_function_from_ptrfunc): Use
get_internal_target_expr instead of force_target_expr.
* decl.cc (cp_finish_decl): Likewise.
* method.cc (build_comparison_op): Likewise.
2025-02-22 Sandra Loosemore <sloosemore@baylibre.com>
* parser.cc (cp_finish_omp_declare_variant): Initialize
append_args_last.
2025-02-17 Jason Merrill <jason@redhat.com>
PR c++/118856
PR c++/118763
* cp-tree.h (TARGET_EXPR_INTERNAL_P): New.
* call.cc (extend_temps_r): Check it instead of CLEANUP_EH_ONLY.
* tree.cc (get_internal_target_expr): Set it instead.
* typeck2.cc (maybe_push_temp_cleanup): Don't set CLEANUP_EH_ONLY.
2025-02-15 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/118846
* cp-tree.h (WILDCARD_TYPE_P): Include UNBOUND_CLASS_TEMPLATE.
* decl2.cc (min_vis_expr_r): Don't assume a TEMPLATE_DECL will
be a function or variable.
2025-02-15 Jason Merrill <jason@redhat.com>
PR c++/118053
* constexpr.cc (cxx_eval_constant_expression): Generalize
DECL_VALUE_EXPR invisiref handling.
2025-02-14 Marek Polacek <polacek@redhat.com>
* pt.cc (tsubst_expr) <COMPONENT_REF>: Assign the result of
force_paren_expr.
2025-02-14 Jason Merrill <jason@redhat.com>
PR c++/118856
* call.cc (set_up_extended_ref_temp): Retain a TARGET_EXPR for
cleanups if something later in initialization throws.
(extend_temps_r): Don't extend eliding or EH-only TARGET_EXPRs.
* cp-tree.h (get_internal_target_expr): Declare.
* tree.cc (get_internal_target_expr): New.
* decl.cc (cp_finish_decomp, expand_static_init): Use it.
* except.cc (build_throw): Likewise.
* init.cc (build_new_1, build_vec_init, build_delete): Likewise.
(build_vec_delete): Likewise.
* typeck2.cc (maybe_push_temp_cleanup): Likewise.
2025-02-14 Jason Merrill <jason@redhat.com>
* init.cc (perform_member_init): Remove unicode from comment.
2025-02-14 Marek Polacek <polacek@redhat.com>
PR c++/116379
* pt.cc (tsubst_expr) <COMPONENT_REF>: Use force_paren_expr to set
REF_PARENTHESIZED_P.
2025-02-14 Nathaniel Shead <nathanieloshead@gmail.com>
* lambda.cc (record_lambda_scope): Clear mangling scope for
otherwise unattached lambdas in class member templates.
2025-02-14 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/107741
* cp-tree.h (is_static_data_member_initialized_in_class):
Declare new predicate.
* decl2.cc (start_initialized_static_member): Push the
TEMPLATE_DECL when appropriate.
(is_static_data_member_initialized_in_class): New predicate.
(finish_initialized_static_member): Use it.
* lambda.cc (record_lambda_scope): Likewise.
* parser.cc (cp_parser_init_declarator): Start the member decl
early for static members so that lambda scope is set.
(cp_parser_template_declaration_after_parameters): Don't
register in-class initialized static members here.
2025-02-13 Jason Merrill <jason@redhat.com>
* tree.cc (handle_init_priority_attribute): Use OPT_prio_ctor_dtor.
2025-02-13 Jason Merrill <jason@redhat.com>
* decl.cc (omp_declare_variant_finalize_one): Use forward_parm.
2025-02-13 Jason Merrill <jason@redhat.com>
PR c++/118856
* call.cc (struct extend_temps_data): Add var_map.
(extend_all_temps): Adjust.
(set_up_extended_ref_temp): Make walk_data void*.
(extend_temps_r): Remap variables. Handle pset here.
Extend all TARGET_EXPRs.
2025-02-13 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/118849
* decl2.cc (min_vis_expr_r): Constrain visibility according to
the type of decl_constant_var_p decls.
2025-02-13 Jakub Jelinek <jakub@redhat.com>
PR c++/118822
PR c++/118833
* semantics.cc (adjust_loop_decl_cond): Allow multiple trailing
CLEANUP_STMT levels in *BODY_P. Set *CLEANUP_P to the number
of levels rather than one particular cleanup, keep the cleanups
in *PREP_P. Set *BODY_P to the last stmt in the cur_stmt_list
or NULL if *CLEANUP_P and the innermost cur_stmt_list is empty.
(finish_loop_cond_prep): New function.
(finish_while_stmt, finish_for_stmt): Use it. Don't call
set_one_cleanup_loc.
* constexpr.cc (cxx_eval_loop_expr): Adjust handling of
{FOR,WHILE}_COND_{PREP,CLEANUP}.
2025-02-11 Jason Merrill <jason@redhat.com>
PR c++/118574
PR c++/107637
* call.cc (struct extend_temps_data): New.
(extend_temps_r, extend_all_temps): New.
(set_up_extended_ref_temp): Handle tree walk case.
(extend_ref_init_temps): Cal extend_all_temps.
* decl.cc (initialize_local_var): Revert ext-temps change.
* parser.cc (cp_convert_range_for): Likewise.
(cp_parser_omp_loop_nest): Likewise.
* pt.cc (tsubst_stmt): Likewise.
* semantics.cc (finish_for_stmt): Likewise.
2025-02-11 Sandra Loosemore <sloosemore@baylibre.com>
* parser.cc (cp_finish_omp_declare_variant): Update call to
omp_check_context_selector.
(cp_parser_omp_metadirective): Likewise.
2025-02-11 Simon Martin <simon@nasilyan.com>
PR c++/118306
PR c++/118304
* decl.cc (maybe_strip_indirect_ref): New.
(check_special_function_return_type): Take declarator as input.
Call maybe_strip_indirect_ref and error out if it returns true.
(grokdeclarator): Update call to
check_special_function_return_type.
2025-02-11 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/118807
* pt.cc (reregister_specialization): Remove spec from
DECL_TEMPLATE_INSTANTIATIONS.
2025-02-07 Jakub Jelinek <jakub@redhat.com>
PR c++/115586
* parser.cc (cp_parser_range_for): For name independent decls in
structured bindings, only push the name/binding once per
structured binding.
2025-02-07 Jakub Jelinek <jakub@redhat.com>
Jason Merrill <jason@redhat.com>
PR c++/86769
* semantics.cc (set_one_cleanup_loc): New function.
(set_cleanup_locs): Use it.
(simplify_loop_decl_cond): Remove.
(adjust_loop_decl_cond): New function.
(begin_while_stmt): Add 2 further NULL_TREE operands to build_stmt.
(finish_while_stmt_cond): Call adjust_loop_decl_cond instead of
simplify_loop_decl_cond.
(finish_while_stmt): Call do_poplevel also on WHILE_COND_PREP if
non-NULL and also use pop_stmt_list rather than do_poplevel for
WHILE_BODY in that case. Call set_one_cleanup_loc.
(begin_for_stmt): Add 2 further NULL_TREE operands to build_stmt.
(finish_for_cond): Call adjust_loop_decl_cond instead of
simplify_loop_decl_cond.
(finish_for_stmt): Call do_poplevel also on FOR_COND_PREP if non-NULL
and also use pop_stmt_list rather than do_poplevel for FOR_BODY in
that case. Call set_one_cleanup_loc.
* constexpr.cc (cxx_eval_loop_expr): Handle
{WHILE,FOR}_COND_{PREP,CLEANUP}.
(check_for_return_continue): Handle {WHILE,FOR}_COND_PREP.
(potential_constant_expression_1): RECUR on
{WHILE,FOR}_COND_{PREP,CLEANUP}.
2025-02-07 Marek Polacek <polacek@redhat.com>
PR c++/117106
PR c++/118190
* pt.cc (maybe_instantiate_noexcept): Give an error if the noexcept
hasn't been parsed yet.
2025-02-07 Simon Martin <simon@nasilyan.com>
PR c++/118282
* call.cc (add_builtin_candidate): Also check for null_ptr_cst_p
operands.
2025-02-07 Jakub Jelinek <jakub@redhat.com>
PR c++/118763
* init.cc (build_new_1): Don't set CLEANUP_EH_ONLY.
2025-02-07 Jakub Jelinek <jakub@redhat.com>
PR c++/118773
* decl.cc (grokdeclarator): Use cplus_decl_attributes rather than
decl_attributes for std_attributes on pointer and array types.
2025-02-07 Jakub Jelinek <jakub@redhat.com>
PR c++/118661
* constexpr.cc (potential_constant_expression_1): Don't diagnose
lvalue-to-rvalue conversion of volatile lvalue if it has NULLPTR_TYPE.
* decl2.cc (decl_maybe_constant_var_p): Return true for constexpr
decls with NULLPTR_TYPE even if they are volatile.
2025-02-05 Simon Martin <simon@nasilyan.com>
PR c++/118319
* decl.cc (grokfndecl): Inspect all friend function parameters.
If it's not valid for them to have a default value and we're
processing a template, set the default value to error_mark_node
and give a hard error.
2025-02-04 Jakub Jelinek <jakub@redhat.com>
PR c++/118671
* call.cc (build_list_conv): For RAW_DATA_CST, call
implicit_conversion with INTEGER_CST representing first byte instead
of the whole RAW_DATA_CST. If it is an optimizable trivial
conversion, just save that to subconvs, otherwise allocate an
artificial ck_list for all the RAW_DATA_CST bytes and create
subsubconv for each of them.
(convert_like_internal): For ck_list with RAW_DATA_CST, instead of
doing all the checks for optimizable conversion just check kind and
assert everything else, otherwise use subsubconversions instead of
the subconversion for each element.
2025-02-04 Marek Polacek <polacek@redhat.com>
PR c++/117778
* parser.cc (cp_parser_late_return_type_opt): Maybe override
auto_is_implicit_function_template_parm_p.
(cp_parser_parameter_declaration): Move a make_temp_override below.
2025-02-04 Marek Polacek <polacek@redhat.com>
PR c++/118718
* parser.cc (warn_about_ambiguous_parse): Don't warn when a trailing
return type is present.
2025-02-04 Simon Martin <simon@nasilyan.com>
Jason Merrill <jason@redhat.com>
PR c++/117114
PR c++/109918
* class.cc (warn_hidden): Keep track of overloaded and of hidden
base methods.
* error.cc (location_of): Skip over conv_op_marker.
2025-02-04 Simon Martin <simon@nasilyan.com>
PR c++/114619
* init.cc (build_vec_init): Properly determine whether
digest_init has been called.
2025-02-04 Jakub Jelinek <jakub@redhat.com>
PR c++/118719
* lambda.cc (add_capture): Only pedwarn about capturing structured
binding if !explicit_init_p.
2025-02-04 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/108205
* contracts.cc (get_pseudo_contract_violation_type): Give names
to generated FIELD_DECLs.
(declare_handle_contract_violation): Mark contract_violation
type as external linkage.
(build_contract_handler_call): Ensure any builtin declarations
created here aren't treated as attached to the current module.
2025-02-04 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/98893
* decl.cc (start_cleanup_fn): Make name from the mangled name of
the passed-in decl.
(register_dtor_fn): Pass decl to start_cleanup_fn.
2025-02-03 A J Ryan Solutions Ltd <gcc.gnu.org@ajryansolutions.co.uk>
PR c++/118265
* pt.cc (find_parameter_packs_r) <case TEMPLATE_PARM_INDEX>:
Walk into the type of a parameter pack.
2025-02-03 Iain Sandoe <iains.gcc@gmail.com>
Jason Merrill <jason@redhat.com>
PR c++/116506
PR c++/116880
* coroutines.cc (build_co_await): Ensure that xvalues are
materialised. Handle references/pointer values in awaiter
access expressions.
(is_stable_lvalue): New.
* decl.cc (cxx_maybe_build_cleanup): Handle null arg.
2025-02-03 Jason Merrill <jason@redhat.com>
PR c++/116914
PR c++/117231
PR c++/118470
PR c++/118491
* semantics.cc (finish_for_stmt): Don't wrap the result of
pop_stmt_list in EXPR_STMT.
2025-02-03 Richard Biener <rguenther@suse.de>
PR c++/79786
* rtti.cc (emit_tinfo_decl): Fix DATA_ABI_ALIGNMENT invocation.
2025-01-31 Jakub Jelinek <jakub@redhat.com>
PR c++/117516
* class.cc (field_nonempty_p): Formatting fixes. Use
integer_zerop instead of tree_int_cst_equal with size_zero_node.
(struct flexmems_t): Change type of first member from tree to bool.
(find_flexarrays): Add nested_p argument. Change pun argument type
from tree to bool, adjust uses. Formatting fixes. If BASE_P or
NESTED_P and T is RECORD_TYPE, start looking only at the last
non-empty or array FIELD_DECL. Adjust recursive call, set first
if it was a nested call and found an array.
(diagnose_invalid_flexarray, diagnose_flexarrays, check_flexarrays):
Formatting fixes.
2025-01-31 Marek Polacek <polacek@redhat.com>
PR c++/117501
* cp-gimplify.cc (cp_build_init_expr_for_ctor): New.
(cp_fold_immediate_r): Call it.
(cp_fold): Break out code into cp_build_init_expr_for_ctor.
2025-01-30 Patrick Palka <ppalka@redhat.com>
* cp-tree.h (LAMBDA_EXPR_CAPTURES_THIS_P): Remove.
2025-01-30 Iain Sandoe <iain@sandoe.co.uk>
PR c++/118673
* tree.cc (lvalue_kind): Mark CONST_DECLs as mergable
when they are also TREE_STATIC.
2025-01-30 Tobias Burnus <tburnus@baylibre.com>
* parser.cc (cp_finish_omp_declare_variant): Modify how append_args
is saved internally.
* pt.cc (tsubst_attribute): Likewise.
(tsubst_omp_clauses): Remove C_ORT_OMP_DECLARE_SIMD from interop
handling as no longer called for it.
* decl.cc (omp_declare_variant_finalize_one): Update append_args
changes; fixes for ADL input.
2025-01-29 Jakub Jelinek <jakub@redhat.com>
PR c++/118655
* semantics.cc (trait_expr_value) <case CPTK_IS_BOUNDED_ARRAY>: Return
false for zero-sized arrays.
2025-01-28 Jason Merrill <jason@redhat.com>
PR c++/118285
* constexpr.cc (cxx_eval_vec_init_1): Build INIT_EXPR for
initializing a class.
2025-01-28 Jason Merrill <jason@redhat.com>
PR c++/118673
* call.cc (maybe_init_list_as_array): Check for lvalue
initializers.
* cp-tree.h (enum cp_lvalue_kind_flags): Add clk_mergeable.
* tree.cc (lvalue_kind): Return it.
(non_mergeable_glvalue_p): New.
(test_lvalue_kind): Adjust.
2025-01-28 Patrick Palka <ppalka@redhat.com>
PR c++/117855
* cp-tree.h (DECL_FRIEND_CONTEXT): Exclude deduction guides.
2025-01-27 Jason Merrill <jason@redhat.com>
PR c++/118632
* pt.cc (unify): Only strip conversion if deducible_expression.
2025-01-27 Simon Martin <simon@nasilyan.com>
PR c++/114292
* pt.cc (for_each_template_parm_r) <INTEGER_TYPE>: Remove case
now handled by cp_walk_subtrees.
* tree.cc (cp_walk_subtrees): Walk the type of DECL_EXPR
declarations, as well as the TYPE_{MIN,MAX}_VALUE of
INTEGER_TYPEs.
2025-01-27 John David Anglin <danglin@gcc.gnu.org>
* module.cc: Test HAVE_MUNMAP and HAVE_MSYNC instead of
_POSIX_MAPPED_FILES > 0.
2025-01-27 Jakub Jelinek <jakub@redhat.com>
PR c++/115769
* module.cc (module_state::write_inits): Verify
STATIC_INIT_DECOMP_{,NON}BASE_P flags and stream changes in those
out.
(module_state::read_inits): Stream those flags in.
2025-01-27 Jakub Jelinek <jakub@redhat.com>
PR c++/115769
* cp-tree.h (STATIC_INIT_DECOMP_BASE_P): Define.
(STATIC_INIT_DECOMP_NONBASE_P): Define.
* decl.cc (cp_finish_decl): Mark nodes in {static,tls}_aggregates
emitted for namespace scope structured bindings with
STATIC_INIT_DECOMP_{,NON}BASE_P flags when needed.
* decl2.cc (decomp_handle_one_var, decomp_finalize_var_list): New
functions.
(emit_partial_init_fini_fn): Use them.
(prune_vars_needing_no_initialization): Assert
STATIC_INIT_DECOMP_*BASE_P is not set on DECL_EXTERNAL vars to be
pruned out.
(partition_vars_for_init_fini): Use same priority for
consecutive STATIC_INIT_DECOMP_*BASE_P vars and propagate
those flags to new TREE_LISTs when possible. Formatting fix.
(handle_tls_init): Use decomp_handle_one_var and
decomp_finalize_var_list functions.
2025-01-25 Simon Martin <simon@nasilyan.com>
PR c++/118239
* constexpr.cc (cx_check_missing_mem_inits): Don't skip fields
with DECL_FIELD_IS_BASE.
2025-01-25 Jakub Jelinek <jakub@redhat.com>
PR c++/117827
* init.cc (build_new_1): Pass address of a make_tree_vector ()
initialized gc tree vector to build_vec_init and append
build_disable_temp_cleanup to init_expr from it.
2025-01-25 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/116568
* module.cc (trees_out::get_merge_kind): Treat all lambdas
without a mangling scope as un-mergeable.
2025-01-25 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/116568
* cp-tree.h (finish_concept_definition): Adjust parameters.
(start_concept_definition): Declare.
* module.cc (depset::hash::is_tu_local_entity): Use
LAMBDA_EXPR_EXTRA_SCOPE to detect TU-local lambdas.
* parser.cc (cp_parser_concept_definition): Start a lambda scope
for concept definitions.
* pt.cc (tsubst_lambda_expr): Namespace-scope lambdas may now
have extra scope.
(finish_concept_definition): Split into...
(start_concept_definition): ...this new function.
2025-01-25 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/118245
* cp-tree.h (LAMBDA_EXPR_EXTRA_SCOPE): Adjust comment.
* parser.cc (cp_parser_class_head): Start (and do not finish)
lambda scope for all valid types.
(cp_parser_class_specifier): Finish lambda scope after parsing
members instead.
* pt.cc (instantiate_class_template): Add lambda scoping.
2025-01-24 Marek Polacek <polacek@redhat.com>
PR c++/117153
* decl2.cc (build_anon_union_vars): Use FIELD for the second operand
of a COMPONENT_REF.
2025-01-23 Marek Polacek <polacek@redhat.com>
PR c++/117602
* cp-tree.h (current_nonlambda_scope): Add a default argument.
* lambda.cc (current_nonlambda_scope): New bool parameter. Use it.
* parser.cc (cp_parser_lambda_introducer): Use current_nonlambda_scope
to check if the lambda is non-local.
2025-01-23 Jakub Jelinek <jakub@redhat.com>
PR c++/118590
* typeck.cc (build_omp_array_section): If array_expr is type dependent
or a TYPE_DECL, build OMP_ARRAY_SECTION with NULL type.
2025-01-23 Jakub Jelinek <jakub@redhat.com>
PR c++/118604
* parser.cc (cp_parser_omp_metadirective): Test !default_p
first and use strcmp () != 0 rather than !strcmp () == 0.
2025-01-23 Nathaniel Shead <nathanieloshead@gmail.com>
* mangle.cc (write_expression): Update mangling for lambdas.
2025-01-23 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/107741
* cp-tree.h (start_initialized_static_member): Declare.
(finish_initialized_static_member): Declare.
* decl2.cc (start_initialized_static_member): New function.
(finish_initialized_static_member): New function.
* lambda.cc (record_lambda_scope): Support falling back to old
ABI (maybe with warning).
* parser.cc (cp_parser_member_declaration): Build decl early
when parsing an initialized static data member.
2025-01-23 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/118582
* module.cc (trees_out::decl_value): Always stream
imported_temploid_friends information.
(trees_in::decl_value): Likewise.
2025-01-22 Jakub Jelinek <jakub@redhat.com>
PR c++/115769
* decl.cc: Partially implement CWG 2867 - Order of initialization
for structured bindings.
(cp_finish_decl): If need_decomp_init, for function scope structure
binding bases, temporarily clear stmts_are_full_exprs_p before
calling expand_static_init, after it call cp_finish_decomp and wrap
code emitted by both into maybe_cleanup_point_expr_void and ensure
cp_finish_decomp isn't called again.
2025-01-22 Marek Polacek <polacek@redhat.com>
PR c++/118396
* constexpr.cc (cxx_eval_outermost_constant_expr): Add an error call
when !allow_non_constant.
2025-01-22 Simon Martin <simon@nasilyan.com>
PR c++/118199
* typeck2.cc (split_nonconstant_init_1): Clear
TARGET_EXPR_ELIDING_P if we need to use a copy constructor
because of __no_unique_address__.
2025-01-22 Jakub Jelinek <jakub@redhat.com>
* parser.cc (cp_parser_objc_message_args): Use tree_cons with
nreverse at the end for both sel_args and addl_args, instead of
chainon with build_tree_list second argument.
2025-01-22 Jakub Jelinek <jakub@redhat.com>
* call.cc (add_list_candidates): Use append_ctor_to_tree_vector.
2025-01-22 Patrick Palka <ppalka@redhat.com>
PR c++/116756
* lambda.cc (lambda_expr_this_capture): Call
retrieve_local_specialization on the result of
LAMBDA_EXPR_THIS_CAPTURE for a generic lambda.
* parser.cc (cp_parser_lambda_expression): Don't clear
LAMBDA_EXPR_THIS_CAPTURE.
* pt.cc (tsubst_stmt) <case DECL_EXPR>: Don't overwrite
LAMBDA_EXPR_THIS_CAPTURE with the specialized capture.
(tsubst_lambda_expr): Don't clear LAMBDA_EXPR_THIS_CAPTURE
afterward.
2025-01-21 Andrew Pinski <quic_apinski@quicinc.com>
PR c++/118525
* cp-gimplify.cc (cp_fold): Check operands of unary, binary, cond/vec_cond
and array_ref for error_mark before checking if the operands had changed.
2025-01-21 Jakub Jelinek <jakub@redhat.com>
PR objc++/118586
* parser.cc (cp_parser_objc_message_args): Handle CPP_EMBED.
2025-01-21 Marek Polacek <polacek@redhat.com>
PR c++/118396
PR c++/118523
* constexpr.cc (cxx_eval_outermost_constant_expr): For non-simple
TARGET_EXPRs, return ctx.ctor rather than the result of
cxx_eval_constant_expression. If TYPE and the type of R don't
match, return the original expression.
2025-01-21 Simon Martin <simon@nasilyan.com>
PR c++/118225
* typeck.cc (build_class_member_access_expr): Let errors that
that have been reported go through.
2025-01-21 Jakub Jelinek <jakub@redhat.com>
* parser.cc (cp_lexer_new_main): Attempt to optimize large sequences
of CPP_NUMBER with int type and values 0-255 separated by CPP_COMMA
into CPP_EMBED with RAW_DATA_CST u.value.
2025-01-21 Jakub Jelinek <jakub@redhat.com>
* cp-objcp-common.cc (names_builtin_p): Return 1 for RID_VA_ARG.
2025-01-21 Jakub Jelinek <jakub@redhat.com>
PR c++/118532
* call.cc (add_list_candidates): Handle RAW_DATA_CST among init_list
elts.
* error.cc (dump_expr_init_vec): Handle RAW_DATA_CST among v elts.
2025-01-20 Nathaniel Shead <nathanieloshead@gmail.com>
* parser.cc (cp_parser_decomposition_declaration): Check linkage
of structured bindings in modules.
* tree.cc (decl_linkage): Structured bindings don't necessarily
have no linkage.
2025-01-20 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/118101
* module.cc (trees_in::decl_value): Use structural equality when
deduping partial specs with mismatching canonical types.
2025-01-18 Jakub Jelinek <jakub@redhat.com>
PR c++/118513
* decl2.cc (copy_linkage): If not TREE_PUBLIC, also set
DECL_INTERFACE_KNOWN, assert it was set on decl and copy
DECL_NOT_REALLY_EXTERN flags.
2025-01-18 Jakub Jelinek <jakub@redhat.com>
PR c++/118534
* constexpr.cc (find_array_ctor_elt): Don't return i early if
i == end - 1 and the last elt's value is RAW_DATA_CST.
2025-01-17 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/118049
* module.cc (trees_in::is_matching_decl): Propagate
FNDECL_USED_AUTO as well.
2025-01-17 Tobias Burnus <tburnus@baylibre.com>
PR fortran/118321
* decl.cc (omp_declare_variant_finalize_one): Shift adjust_args index
by one for non-static class function's 'this' pointer.
2025-01-17 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/118147
* parser.cc (cp_parser_cache_defarg): Don't error when
CPP_PRAGMA_EOL.
2025-01-17 Simon Martin <simon@nasilyan.com>
PR c++/118255
* name-lookup.cc (pushdecl): Don't call check_template_shadow
for hidden bindings.
2025-01-16 Patrick Palka <ppalka@redhat.com>
PR c++/105440
* constexpr.cc (cxx_eval_call_expression): If any RESULT_DECLs get
replaced in the call result, try further evaluating the result.
2025-01-16 Patrick Palka <ppalka@redhat.com>
PR c++/107522
* constraint.cc (get_normalized_constraints_from_decl): Use the
most general template for an explicit specialization of a
member template.
2025-01-16 Patrick Palka <ppalka@redhat.com>
PR c++/118454
* cp-tree.h (STF_KEEP_INJ_CLASS_NAME): Define.
* pt.cc (iterative_hash_template_argument) <case tcc_type>:
Clarify comment for when we'd see an alias template
specialization here.
(coerce_template_parms): Strip typedefs (except for
injected-class-names) in the pack expansion early break cases
that defer coercion.
* tree.cc (strip_typedefs): Don't strip an injected-class-name
if STF_KEEP_INJ_CLASS_NAME is set.
2025-01-16 Patrick Palka <ppalka@redhat.com>
PR c++/116417
* cp-tree.h (finish_pseudo_destructor_expr): Add complain
parameter.
* parser.cc (cp_parser_postfix_dot_deref_expression): Pass
complain=tf_warning_or_error to finish_pseudo_destructor_expr.
* pt.cc (tsubst_expr): Pass complain to
finish_pseudo_destructor_expr.
* semantics.cc (finish_pseudo_destructor_expr): Check complain
before emitting a diagnostic.
2025-01-16 Simon Martin <simon@nasilyan.com>
PR c++/117775
* decl.cc (fold_sizeof_expr): Make sure the folded result has
type size_type_node.
2025-01-16 Sandra Loosemore <sloosemore@baylibre.com>
* parser.cc (cp_parser_omp_assumption_clauses): Give a more specific
error message for invalid directives vs unknown names.
2025-01-16 Sandra Loosemore <sloosemore@baylibre.com>
* decl2.cc (cplus_decl_attributes): Don't add "omp declare target
block".
2025-01-16 Sandra Loosemore <sloosemore@baylibre.com>
Kwok Cheung Yeung <kcy@codesourcery.com>
Sandra Loosemore <sandra@codesourcery.com>
PR middle-end/112779
PR middle-end/113904
* cp-tree.h (struct saved_scope): Add new field
x_processing_omp_trait_property_expr.
(processing_omp_trait_property_expr): New.
* parser.cc (cp_parser_skip_to_end_of_block_or_statement): Add
metadirective_p parameter and handle skipping over the parentheses
in a "for" statement.
(struct omp_metadirective_parse_data): New.
(mangle_metadirective_region_label): New.
(cp_parser_label_for_labeled_statement): Mangle label names in a
metadirective body.
(cp_parser_jump_statement): Likewise.
(cp_parser_omp_context_selector): Allow arbitrary expressions in
device_num and condition properties.
(cp_parser_omp_assumption_clauses): Handle C_OMP_DIR_META.
(analyze_metadirective_body): New.
(cp_parser_omp_metadirective): New.
(cp_parser_pragma): Handle PRAGMA_OMP_METADIRECTIVE.
* parser.h (struct cp_parser): Add omp_metadirective_state field.
* pt.cc (tsubst_omp_context_selector): New.
(tsubst_stmt): Handle OMP_METADIRECTIVE.
* semantics.cc (finish_id_expression_1): Don't diagnose use of
parameter outside function body in dynamic selector expressions here.
2025-01-16 Jakub Jelinek <jakub@redhat.com>
PR c++/118214
* decl.cc (struct reshape_iter): Add raw_idx member.
(cp_maybe_split_raw_data): Add inc_cur parameter, set *inc_cur,
don't modify original CONSTRUCTOR, use d->raw_idx to track index
into a RAW_DATA_CST d->cur->value.
(consume_init): Adjust cp_maybe_split_raw_data caller, increment
d->cur when cur_inc is true.
(reshape_init_array_1): Don't modify original CONSTRUCTOR when
handling RAW_DATA_CST d->cur->value and !reuse, instead use
d->raw_idx to track index into RAW_DATA_CST.
(reshape_single_init): Initialize iter.raw_idx.
(reshape_init_class): Adjust for introduction of d->raw_idx,
adjust cp_maybe_split_raw_data caller, do d->cur++ if inc_cur
rather than when it returns non-NULL.
(reshape_init_r): Check for has_designator_problem for second
half of _Complex earlier, also check for
error_operand_p (d->cur->value). Use consume_init instead of
cp_maybe_split_raw_data with later conditional d->cur++.
(reshape_init): Initialize d.raw_idx.
2025-01-16 Jakub Jelinek <jakub@redhat.com>
* parser.cc (cp_parser_lambda_declarator_opt,
cp_parser_statement, cp_parser_selection_statement,
cp_parser_jump_statement): Use -std=c++23 and -std=gnu++23
in diagnostics rather than -std=c++2b and -std=gnu++2b.
* semantics.cc (finish_compound_literal): Likewise.
* typeck2.cc (build_functional_cast_1): Likewise.
* decl.cc (start_decl): Likewise.
* constexpr.cc (ensure_literal_type_for_constexpr_object,
potential_constant_expression_1): Likewise.
2025-01-15 Jakub Jelinek <jakub@redhat.com>
PR c++/118390
* cp-tree.h (count_ctor_elements): Declare.
* call.cc (count_ctor_elements): No longer static.
* pt.cc (unify): Use count_ctor_elements instead of
CONSTRUCTOR_NELTS.
2025-01-15 Jakub Jelinek <jakub@redhat.com>
PR c++/118278
* mangle.cc (write_expression): Handle RAW_DATA_CST.
2025-01-15 Marek Polacek <polacek@redhat.com>
PR c++/118139
* cxx-pretty-print.cc (pp_cxx_nested_name_specifier): Handle
a computed-type-specifier.
2025-01-15 Tobias Burnus <tburnus@baylibre.com>
PR c++/118486
* decl.cc (omp_declare_variant_finalize_one): When resolving
the variant to use, handle variant calls with TARGET_EXPR.
2025-01-15 Jakub Jelinek <jakub@redhat.com>
PR c++/118387
* method.cc (build_comparison_op): Set bad if
std::strong_ordering::equal doesn't convert to rettype.
2025-01-15 Jakub Jelinek <jakub@redhat.com>
PR c++/118124
* cp-tree.h (build_array_of_n_type): Change second argument type
from int to unsigned HOST_WIDE_INT.
* tree.cc (build_array_of_n_type): Likewise.
* call.cc (count_ctor_elements): New function.
(maybe_init_list_as_array): Use it instead of CONSTRUCTOR_NELTS.
(convert_like_internal): Use length from init's type instead of
len when handling the maybe_init_list_as_array case.
2025-01-15 Jakub Jelinek <jakub@redhat.com>
PR c++/118124
* call.cc (convert_like_internal): Handle RAW_DATA_CST in
ck_list handling. Formatting fixes.
2025-01-14 Marek Polacek <polacek@redhat.com>
PR c++/118047
PR c++/118355
* typeck2.cc (massage_init_elt): Call fold_non_dependent_init
unless for a CONSTRUCTOR in a template.
2025-01-14 Sandra Loosemore <sloosemore@baylibre.com>
Kwok Cheung Yeung <kcy@codesourcery.com>
Sandra Loosemore <sandra@codesourcery.com>
Marcel Vollweiler <marcel@codesourcery.com>
PR middle-end/114596
PR middle-end/112779
PR middle-end/113904
* decl.cc (omp_declare_variant_finalize_one): Update for changes
to omp-general.h interfaces.
* parser.cc (cp_finish_omp_declare_variant): Likewise.
2025-01-14 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/117397
* module.cc (depset::hash::add_deduction_guides): Don't emit
imported deduction guides.
(depset::hash::finalize_dependencies): Add check for any
bindings referring to imported entities.
2025-01-14 Andrew Pinski <quic_apinski@quicinc.com>
PR c++/118445
* constexpr.cc (cxx_eval_constant_expression): Handle VEC_DUPLICATE like
a "normal" unary operator.
(potential_constant_expression_1): Likewise.
2025-01-11 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/114630
* module.cc (trees_in::core_vals) <BLOCK>: Chain a new node if
DECL_CHAIN already is set.
2025-01-11 Jason Merrill <jason@redhat.com>
* module.cc (trees_out::type_node): Write attributes for
tt_derived_type, not tt_variant_type.
(trees_in::tree_node): Likewise for reading.
2025-01-11 Jason Merrill <jason@redhat.com>
* module.cc (trees_in::decl_value): Merge attributes.
2025-01-10 Paul-Antoine Arras <parras@baylibre.com>
* parser.cc (cp_parser_pragma): Replace call to cp_parser_omp_dispatch
with cp_parser_omp_construct and check context.
2025-01-10 Jakub Jelinek <jakub@redhat.com>
PR c++/118387
* method.cc (genericize_spaceship): For tag == cc_last if
type is not auto just return error_mark_node instead of failing
checking assertion.
2025-01-10 Jason Merrill <jason@redhat.com>
* module.cc (trees_out::core_bools): Write replaceable_operator.
(trees_in::core_bools): Read it.
2025-01-10 Marek Polacek <polacek@redhat.com>
PR c++/117937
* pt.cc (tsubst_pack_index): tsubst the pack even when it's not
PACK_EXPANSION_P.
2025-01-10 Jakub Jelinek <jakub@redhat.com>
PR c++/118277
* cp-tree.h (finish_asm_string_expression): Declare.
* semantics.cc (finish_asm_string_expression): New function.
(finish_asm_stmt): Use it.
* parser.cc (cp_parser_asm_string_expression): Likewise.
Wrap string into PAREN_EXPR in the ("") case.
(cp_parser_asm_definition): Don't ICE if finish_asm_stmt
returns error_mark_node.
(cp_parser_asm_specification_opt): Revert 2024-06-24 changes.
* pt.cc (tsubst_stmt): Don't ICE if finish_asm_stmt returns
error_mark_node.
2025-01-10 Jakub Jelinek <jakub@redhat.com>
* module.cc (trees_out::core_vals): Note DECL_VALUE_EXPR even for
vars outside of functions.
(trees_in::core_vals): Read in DECL_VALUE_EXPR even for vars outside
of functions.
(trees_out::get_merge_kind): Make DECL_DECOMPOSITION_P MK_unique.
2025-01-10 Jason Merrill <jason@redhat.com>
* error.cc (cxx_initialize_diagnostics): Improve comment.
* module.cc (modules): Improve comment.
(get_originating_module): Add function comment.
2025-01-10 Jason Merrill <jason@redhat.com>
* module.cc (trees_out::write_function_def): Write returns* flags.
(struct post_process_data): Add returns_* flags.
(trees_in::read_function_def): Set them.
(module_state::read_cluster): Use them.
2025-01-09 Jason Merrill <jason@redhat.com>
* decl.cc (check_redeclaration_exception_specification): Be more
lenient about ::operator new.
2025-01-09 Jason Merrill <jason@redhat.com>
Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
PR c/116060
* call.cc (standard_conversion): Preserve type name in ck_identity.
(maybe_adjust_type_name): New.
(convert_like_internal): Use it.
Handle -Wsuggest-attribute=format here.
(convert_for_arg_passing): Not here.
2025-01-09 Patrick Palka <ppalka@redhat.com>
PR c++/118060
* constraint.cc (tsubst_valid_expression_requirement): Don't
check convert_to_void during partial substitution.
2025-01-09 Patrick Palka <ppalka@redhat.com>
PR c++/117887
* pt.cc (instantiate_template): Set tf_partial if arguments are
dependent.
2025-01-09 Patrick Palka <ppalka@redhat.com>
PR c++/117925
* constexpr.cc (potential_constant_expression_1) <case CAST_EXPR>:
Fix check for class conversion to literal type to properly look
through the TREE_LIST operand of a CAST_EXPR.
2025-01-09 Patrick Palka <ppalka@redhat.com>
PR c++/117925
* constexpr.cc (cxx_eval_constant_expression) <default>:
Relax ICE when encountering an unexpected tree code into a
checking ICE guarded by flag_checking.
2025-01-09 Patrick Palka <ppalka@redhat.com>
PR c++/117993
* search.cc (any_dependent_bases_p): Recurse into bases (of
dependent type) that are not BINFO_DEPENDENT_BASE_P. Document
default argument.
2025-01-09 Patrick Palka <ppalka@redhat.com>
PR c++/117792
* pt.cc (type_dependent_expression_p): Consider the dependence
of the address of each template argument of a function
template-id.
2025-01-08 Jakub Jelinek <jakub@redhat.com>
PR c++/117825
* typeck.cc (cp_build_function_call_vec): Don't call
check_function_arguments if complain doesn't have tf_warning bit set.
2025-01-08 Jason Merrill <jason@redhat.com>
* cp-tree.h (build_nop): Add CXX_MEM_STAT_INFO.
* typeck.cc (build_nop): Add MEM_STAT_DECL.
2025-01-08 Jason Merrill <jason@redhat.com>
* call.cc (implicit_conversion): Check that FROM isn't a reference
if we also got an EXPR argument.
(convert_like_internal): Check that EXPR isn't a reference.
(can_convert_arg): convert_from_reference if needed.
2025-01-08 Jason Merrill <jason@redhat.com>
* method.cc (is_stub_object): New.
* cp-tree.h (is_stub_object): Declare.
* error.cc (dump_expr): Use it.
2025-01-08 Jason Merrill <jason@redhat.com>
* call.cc (convert_like_internal): Add missing break.
* coroutines.cc (cp_coroutine_transform::build_ramp_function): Build
INIT_EXPR directly.
* decl.cc (omp_declare_variant_finalize_one): Use build_stub_object.
2025-01-08 Marek Polacek <polacek@redhat.com>
PR c++/118169
* typeck2.cc (split_nonconstant_init): Call finish_expr_stmt instead
of add_stmt.
2025-01-03 Tobias Burnus <tburnus@baylibre.com>
* parser.cc (cp_parser_omp_var_list_no_open,
cp_parser_omp_var_list): For kind=0 (= OMP_CLAUSE_ERROR),
store also the expression location in the tree list.
(cp_parser_oacc_data_clause_deviceptr,
cp_finish_omp_declare_variant): Use that location instead or
input_location/the before-parsing location.
* semantics.cc (finish_omp_threadprivate): Likewise.
2025-01-02 Paul-Antoine Arras <parras@baylibre.com>
* parser.cc (cp_parser_omp_dispatch): Handle INDIRECT_REF.
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