blob: 6535141a60ea448fc0fd1477f84588544ac962b4 [file] [log] [blame]
2021-10-14 Kwok Cheung Yeung <>
* decl.c (omp_declare_variant_finalize_one): Change call from
c_omp_mark_declare_variant to omp_mark_declare_variant.
* parser.c (cp_finish_omp_declare_variant): Change call from
c_omp_check_context_selector to omp_check_context_selector.
2021-10-09 Jakub Jelinek <>
* parser.c (cp_parser_omp_structured_block): Remove disallow_omp_attrs
(cp_parser_omp_structured_block_sequence): New function.
(cp_parser_omp_scan_loop_body): Use it.
(cp_parser_omp_sections_scope): Likewise.
2021-10-08 Martin Liska <>
* constexpr.c (maybe_warn_about_constant_value): Use new macro
* decl.c (redeclaration_error_message): Likewise.
(cxx_init_decl_processing): Likewise.
2021-10-08 Jakub Jelinek <>
PR c++/102640
* parser.c (handle_omp_declare_target_clause): New function.
(cp_parser_omp_declare_target): Use it.
2021-10-07 Patrick Palka <>
PR c++/61355
* pt.c (convert_template_argument): Perform array/function to
pointer conversion on the substituted type of an NTTP.
2021-10-07 Patrick Palka <>
PR c++/99904
* pt.c (is_compatible_template_arg): Set processing_template_decl
around tsubst_constraint_info.
2021-10-07 Jonathan Wakely <>
PR c++/102482
* init.c (maybe_warn_list_ctor): Do not warn for a reference to
a non-const std::initializer_list.
2021-10-06 Jakub Jelinek <>
PR c++/102612
* parser.c (cp_parser_jump_statement): Implement C++23 P2242R3.
Allow goto expressions in constexpr function bodies for C++23.
Adjust error message for older standards to mention it.
* decl.c (start_decl): Allow static and thread_local declarations
in constexpr function bodies for C++23. Adjust error message for
older standards to mention it.
* constexpr.c (ensure_literal_type_for_constexpr_object): Allow
declarations of variables with non-literal type in constexpr function
bodies for C++23. Adjust error message for older standards to mention
(cxx_eval_constant_expression) <case DECL_EXPR>: Diagnose declarations
of initialization of static or thread_local vars.
(cxx_eval_constant_expression) <case GOTO_EXPR>: Diagnose goto
statements for C++23.
(potential_constant_expression_1) <case DECL_EXPR>: Swap the
(potential_constant_expression_1) <case LABEL_EXPR>: Allow labels for
C++23. Adjust error message for older standards to mention it.
2021-10-06 Jakub Jelinek <>
Jason Merrill <>
PR c++/98712
PR c++/102490
* cp-tree.h (maybe_synthesize_method): Declare.
* method.c (genericize_spaceship): Use
LOOKUP_NORMAL for flags.
(comp_info): Remove defining member. Add complain, code, retcat.
(comp_info::comp_info): Adjust.
(do_one_comp): Split out from build_comparison_op. Use
LOOKUP_NORMAL for flags.
(build_comparison_op): Add defining argument. Adjust comp_info
construction. Use defining instead of info.defining. Assert that
if defining, ctype is a complete type. Walk base binfos.
(synthesize_method, maybe_explain_implicit_delete,
explain_implicit_non_constexpr): Adjust build_comparison_op callers.
(maybe_synthesize_method): New function.
* class.c (check_bases_and_members): Don't call defaulted_late_check
for sfk_comparison.
(finish_struct_1): Call it here instead after class has been
* pt.c (maybe_instantiate_noexcept): Call maybe_synthesize_method
instead of synthesize_method.
2021-10-05 Jakub Jelinek <>
PR c++/102548
* tree.c (apply_identity_attributes): Fix handling of the
case where an attribute in the list doesn't affect type
identity but some attribute before it does.
2021-10-05 Patrick Palka <>
PR c++/102547
* constexpr.c (potential_constant_expression_1): Handle
2021-10-05 Patrick Palka <>
PR c++/98930
* pt.c (has_value_dependent_address): Return true for a static
local variable from a function template.
2021-10-04 Marek Polacek <>
PR c++/97573
* typeck.c (cp_build_binary_op): Call do_warn_array_compare.
2021-10-03 Iain Sandoe <>
PR c++/101765
* (register_local_var_uses): Emit a sorry if
we encounter a VLA in the coroutine local variables.
2021-10-03 Iain Sandoe <>
PR c++/99710
* (await_statement_walker): Report an error if
an await expression is found in a handler body.
2021-10-03 John Eivind Helset <>
PR c++/100673
* (build_co_await): Guard against NULL
await_suspend types.
2021-10-03 Iain Sandoe <>
PR c++/101133
* (build_co_await): Mark co_await_expr trees
with TREE_SIDE_EFFECTS, also mark any containing expression.
(finish_co_await_expr): Mark type-dependent co_await_expr
2021-10-03 Iain Sandoe <>
PR c++/99575
* (build_co_await): Strip NOPs from
candidate awaiter expressions before testing to see
if they need a temporary.
2021-10-01 Martin Sebor <>
PR c/102103
* typeck.c (warn_for_null_address): Enhance.
(cp_build_binary_op): Call it also for member pointers.
2021-10-01 qingzhe huang <>
PR c++/101783
* tree.c (cp_build_qualified_type_real): Exclude typedef from
2021-10-01 Jakub Jelinek <>
Richard Biener <>
PR sanitizer/102515
* typeck.c (cp_build_binary_op): Call ubsan_instrument_division
for division even for SANITIZE_SI_OVERFLOW.
2021-10-01 Jakub Jelinek <>
* parser.c (cp_parser_omp_clause_order): Set
OMP_CLAUSE_ORDER_REPRODUCIBLE for explicit reproducible: modifier.
2021-10-01 Jakub Jelinek <>
PR c++/102496
* name-lookup.c (push_local_extern_decl_alias): Return early even for
tls vars with non-dependent type when processing_template_decl. For
CP_DECL_THREAD_LOCAL_P vars call set_decl_tls_model on alias.
2021-09-30 Patrick Palka <>
PR c++/102535
* method.c (is_xible_helper): Don't exit early for multi-arg
ctors in C++20.
2021-09-30 Patrick Palka <>
* parser.c (cp_parser_trait_expr): Call nreverse on the reversed
list of trailing arguments.
2021-09-30 Patrick Palka <>
PR c++/95567
* method.c (build_comparison_op): Skip DECL_VIRTUAL_P fields.
2021-09-28 Patrick Palka <>
PR c++/99909
* pt.c (coerce_template_template_parms): Keep
processing_template_decl set around the call to unify as well.
2021-09-28 Iain Sandoe <>
PR c++/102454
* (analyze_fn_parms): Clean up synthetic names for
unnamed function params.
(morph_fn_to_coro): Do not try to set a guard variable for param
DTORs in the ramp, unless we have exceptions active.
2021-09-27 Patrick Palka <>
PR c++/102479
* pt.c (rewrite_template_parm): Handle single-level tsubst_args.
Avoid a tree cycle when assigning the DECL_TEMPLATE_PARMS for a
rewritten ttp.
(alias_ctad_tweaks): Set current_template_parms accordingly.
2021-09-23 Michel Morin <>
* parser.c (cp_keyword_starts_decl_specifier_p): Do not
(cp_parser_constructor_declarator_p): Remove now-redundant
(cp_parser_lambda_declarator_opt): Likewise.
2021-09-23 Michel Morin <>
PR c++/77565
* parser.c (cp_keyword_starts_decl_specifier_p): Handle more
decl-specifiers (typedef/inline/cv/explicit/virtual/friend).
2021-09-23 Patrick Palka <>
* ptree.c (cxx_print_decl): Dump the DECL_TEMPLATE_RESULT of
a TEMPLATE_DECL. Dump the DECL_TEMPLATE_INFO rather than just
printing its pointer value.
2021-09-23 Jakub Jelinek <>
PR c++/102413
* parser.c (cp_parser_omp_directive_args): Diagnose if omp::directive
is not followed by a balanced token sequence starting with open paren.
2021-09-22 Patrick Palka <>
DR 2446
PR c++/102412
* constexpr.c (cxx_eval_constant_expression)
<case TEMPLATE_ID_EXPR>: Check value_dependent_expression_p
instead of processing_template_decl.
* pt.c (value_dependent_expression_p) <case TEMPLATE_ID_EXPR>:
Return true only if any_dependent_template_arguments_p.
(instantiation_dependent_r) <case CALL_EXPR>: Remove this case.
<case TEMPLATE_ID_EXPR>: Likewise.
2021-09-22 Jakub Jelinek <>
* parser.c (cp_parser_omp_clause_allocate): Parse allocate clause
* semantics.c (finish_omp_clauses) <OMP_CLAUSE_ALLOCATE>: Perform
semantic analysis of OMP_CLAUSE_ALLOCATE_ALIGN.
* pt.c (tsubst_omp_clauses) <case OMP_CLAUSE_ALLOCATE>: Handle
2021-09-22 Barrett Adair <>
* pt.c (find_parm_usage_r): New walk_tree callback to find func
(any_template_arguments_need_structural_equality_p): New special
2021-09-21 wangpc <>
* decl.c (start_decl_1): Move verify_type_context to ...
(cp_finish_decl): ... to here.
2021-09-18 Jakub Jelinek <>
* parser.c (cp_parser_omp_clause_order): Parse unconstrained
and reproducible modifiers.
2021-09-18 Jakub Jelinek <>
* parser.c (cp_parser_omp_clause_default): Handle private and
firstprivate arguments, adjust diagnostics on unknown argument.
* cp-gimplify.c (cxx_omp_finish_clause): Handle OMP_CLAUSE_PRIVATE.
2021-09-18 Jason Merrill <>
* cp-tree.h (dependentish_scope_p): Declare.
* pt.c (dependentish_scope_p): New.
* parser.c (cp_parser_lookup_name): Return a TYPENAME_TYPE
for lookup of a type in a dependent object.
(cp_parser_template_id): Handle TYPENAME_TYPE.
(cp_parser_template_name): If we're looking for a type,
a name followed by < names a template.
2021-09-18 Jason Merrill <>
* cp-tree.h: Fix typo in LANG_FLAG list.
2021-09-17 Jakub Jelinek <>
* cp-tree.h (finish_omp_atomic): Add r and weak arguments.
* parser.c (cp_parser_omp_atomic): Update function comment for
OpenMP 5.1 atomics, parse OpenMP 5.1 atomics and fail, compare and
weak clauses.
* semantics.c (finish_omp_atomic): Add r and weak arguments, handle
them, handle COND_EXPRs.
* pt.c (tsubst_expr): Adjust for COND_EXPR forms that
finish_omp_atomic can now produce.
2021-09-16 Patrick Palka <>
PR c++/98486
* (get_normalized_constraints_from_decl): Always
look up constraints using the most general template.
* decl.c (grokdeclarator): Set constraints on a static data
member template.
* pt.c (determine_specialization): Check constraints on a
variable template.
2021-09-16 Iain Sandoe <>
* (await_statement_walker): Code cleanups.
2021-09-16 Jason Merrill <>
* constexpr.c (cxx_eval_outermost_constant_expr): Use
2021-09-15 Patrick Palka <>
PR c++/101904
* call.c (build_user_type_conversion_1): Add tf_conv to complain.
(add_candidates): When in a SFINAE context, instead of adding a
candidate to bad_fns just mark it unviable.
2021-09-15 Jason Merrill <>
* cp-tree.h (parsing_function_declarator): Declare.
* name-lookup.c (set_decl_context_in_fn): Use it.
* parser.c (cp_parser_direct_declarator): Use it.
(parsing_function_declarator): New.
2021-09-15 Jakub Jelinek <>
PR c++/88578
PR c++/102295
* typeck2.c (split_nonconstant_init_1): Don't throw away empty
initializers of flexible array members if they have non-zero type
2021-09-15 Patrick Palka <>
PR c++/102050
* decl.c (grok_special_member_properties): Set
and TYPE_HAS_LIST_CTOR independently from each other.
2021-09-15 Jason Merrill <>
* decl.c (cxx_init_decl_processing): Only warn about odd
interference sizes if they were specified with --param.
2021-09-15 Jason Merrill <>
PR c++/48396
* cp-tree.h (enum cp_tree_index): Remove CPTI_TYPE_INFO_PTR_TYPE.
(type_info_ptr_type): Remove.
* rtti.c (init_rtti_processing): Don't predeclare std::type_info.
(typeid_ok_p): Check for null const_type_info_type_node.
(type_info_ptr_type, get_void_tinfo_ptr): New fns.
(get_tinfo_decl_dynamic, get_tinfo_ptr): Use them.
(ptr_initializer, ptm_initializer, get_pseudo_ti_init): Use them.
(get_tinfo_desc): Use const_ptr_type_node.
2021-09-15 Jason Merrill <>
* parser.c (cp_parser_template_name): Move object type.
(cp_parser_pre_parsed_nested_name_specifier): Likewise.
2021-09-15 Jason Merrill <>
* parser.c (cp_parser_unqualified_id): Only complain about ~A<T> in
a declarator.
2021-09-14 Iain Sandoe <>
* (struct param_info): Add copy_var.
(build_actor_fn): Use simplified param references.
(register_param_uses): Likewise.
(rewrite_param_uses): Likewise.
(analyze_fn_parms): New function.
(coro_rewrite_function_body): Add proxies for the fn
parameters to the outer bind scope of the rewritten code.
(morph_fn_to_coro): Use simplified version of param ref.
2021-09-14 Iain Sandoe <>
* (coro_resume_fn_id, coro_destroy_fn_id,
coro_promise_id, coro_frame_needs_free_id, coro_resume_index_id,
coro_self_handle_id, coro_actor_continue_id,
coro_frame_i_a_r_c_id): New.
(coro_init_identifiers): Initialize new name identifiers.
(coro_promise_type_found_p): Use pre-built identifiers.
(struct await_xform_data): Remove unused fields.
(transform_await_expr): Delete code that is now unused.
(build_actor_fn): Simplify interface, use pre-built identifiers and
remove transforms that are no longer needed.
(build_destroy_fn): Use revised field names.
(register_local_var_uses): Use pre-built identifiers.
(coro_rewrite_function_body): Simplify interface, use pre-built
identifiers. Generate proxy vars in the outer bind expr scope for the
implementation state that we wish to expose.
(morph_fn_to_coro): Adjust comments for new variable names, use pre-
built identifiers. Remove unused code to generate frame entries for
the implementation state. Adjust call for build_actor_fn.
2021-09-14 Patrick Palka <>
PR c++/102163
* constexpr.c (cxx_eval_call_expression): After evaluating a
subobject constructor call for an empty union member, produce a
side effect that makes sure the member gets activated.
2021-09-14 Jakub Jelinek <>
PR c++/102295
* decl.c (layout_var_decl): For aggregates ending with a flexible
array member, add the size of the initializer for that member to
2021-09-14 Jakub Jelinek <>
PR c++/102305
* method.c (is_xible_helper): Call complete_type on to.
2021-09-14 Jason Merrill <>
* decl.c (cxx_init_decl_processing): Don't warn if L1 cache line
size is smaller than maxalign.
2021-09-13 Jason Merrill <>
* constexpr.c (maybe_warn_about_constant_value):
Complain about std::hardware_destructive_interference_size.
(cxx_eval_constant_expression): Call it.
* decl.c (cxx_init_decl_processing): Check
--param *-interference-size values.
2021-09-13 Patrick Palka <>
PR c++/101764
* cp-tree.h (PACK_EXPANSION_FORCE_EXTRA_ARGS_P): New accessor
* pt.c (has_extra_args_mechanism_p): New function.
(find_parameter_pack_data::found_extra_args_tree_p): New data
(find_parameter_packs_r): Set ppd->found_extra_args_tree_p
(make_pack_expansion): Set PACK_EXPANSION_FORCE_EXTRA_ARGS_P if
(use_pack_expansion_extra_args_p): Return true if there were
unsubstituted packs and PACK_EXPANSION_FORCE_EXTRA_ARGS_P.
(tsubst_pack_expansion): Pass the pack expansion to
2021-09-10 Jakub Jelinek <>
* parser.c (cp_parser_omp_atomic): Allow acq_rel on atomic read/write
and acq_rel/acquire clauses on update.
* semantics.c (finish_omp_atomic): Adjust c_finish_omp_atomic caller.
2021-09-08 Richard Biener <>
PR c++/102228
* cp-tree.h (ANON_AGGR_TYPE_FIELD): New define.
* decl.c (fixup_anonymous_aggr): Wipe RTTI info put in
place on invalid code.
* decl2.c (reset_type_linkage): Guard CLASSTYPE_TYPEINFO_VAR
* (trees_in::read_class_def): Likewise. Reconstruct
* semantics.c (finish_member_declaration): Populate
ANON_AGGR_TYPE_FIELD for anon aggregate typed members.
* typeck.c (lookup_anon_field): Remove DFS search and return
2021-09-07 Jakub Jelinek <>
PR c++/100495
* constexpr.c (maybe_save_constexpr_fundef): Save body even for
constexpr deleting dtors.
(cxx_eval_call_expression): Don't use DECL_CLONED_FUNCTION for
deleting dtors.
2021-09-07 Marcel Vollweiler <>
* parser.c (cp_parser_omp_flush): Parse 'seq_cst' clause on 'flush'
* semantics.c (finish_omp_flush): Handle MEMMODEL_SEQ_CST.
2021-09-03 Iain Sandoe <>
* (register_local_var_uses): Do not mangle
frame entries for the outermost scope. Record the outer
scope as nesting depth 0.
2021-09-03 Iain Sandoe <>
* (coro_build_artificial_var): New.
(build_actor_fn): Use var builder, rename vars to use
implementation namespace.
(coro_rewrite_function_body): Likewise.
(morph_fn_to_coro): Likewise.
2021-09-03 Iain Sandoe <>
* (transform_local_var_uses): Record
frame offset expressions as DECL_VALUE_EXPRs instead of
rewriting them.
2021-09-03 Patrick Palka <>
PR c++/101904
* call.c (build_this_conversion): New function, split out from
(add_function_candidate): New parameter shortcut_bad_convs.
Document it. Use build_this_conversion. Stop at the first bad
argument conversion when shortcut_bad_convs is true.
(add_template_candidate_real): New parameter shortcut_bad_convs.
Use build_this_conversion to check the 'this' conversion before
attempting deduction. When the rejection reason code is
rr_bad_arg_conversion, pass -1 instead of 0 as the viable
parameter to add_candidate. Pass 'convs' to add_candidate.
(add_template_candidate): New parameter shortcut_bad_convs.
(add_template_conv_candidate): Pass false as shortcut_bad_convs
to add_template_candidate_real.
(add_candidates): Prefer to shortcut bad conversions during
overload resolution under the assumption that we'll eventually
see a strictly viable candidate. If this assumption turns out
to be false, re-process the non-strictly viable candidates
without shortcutting those bad conversions.
2021-09-03 Jason Merrill <>
* pt.c (limit_bad_template_recursion): Suppress -Wunused for decls
we decide not to instantiate.
2021-09-03 Jakub Jelinek <>
PR target/102024
* class.c (build_base_field): Use SET_DECL_FIELD_ABI_IGNORED
instead of writing to DECL_FIELD_ABI_IGNORED.
(layout_class_type): Likewise. In the place where zero-width
bitfields used to be removed, use
SET_DECL_FIELD_CXX_ZERO_WIDTH_BIT_FIELD on those fields instead.
2021-09-01 Iain Sandoe <>
* call.c (build_over_call): Handle unavailable state in addition to
* class.c (type_build_ctor_call): Likewise.
(type_build_dtor_call): Likewise.
* cp-tree.h: Rename cp_warn_deprecated_use to
* decl.c (duplicate_decls): Merge unavailability.
(grokdeclarator): Handle unavailability in addition to deprecation.
(type_is_unavailable): New.
(grokparms): Handle unavailability in addition to deprecation.
* decl.h (enum deprecated_states): Add
* decl2.c (cplus_decl_attributes): Propagate unavailability to
(cp_warn_deprecated_use): Rename to ...
(cp_handle_deprecated_or_unavailable): ... this and amend to handle
the unavailable case. It remains a warning in the case of deprecation
but becomes an error in the case of unavailability.
(cp_warn_deprecated_use_scopes): Handle unavailability.
(mark_used): Likewise.
* parser.c (cp_parser_template_name): Likewise.
(cp_parser_template_argument): Likewise.
(cp_parser_parameter_declaration_list): Likewise.
* typeck.c (build_class_member_access_expr): Likewise.
(finish_class_member_access_expr): Likewise.
* typeck2.c (build_functional_cast_1): Likewise.
2021-09-01 Iain Sandoe <>
* (build_actor_fn): Add begin/finish clauses
to the initial test in the actor function.
2021-09-01 Iain Sandoe <>
* (await_statement_walker): Use build_stmt and
add_stmt instead of build1 and finish_expr_stmt.
2021-08-31 Jason Merrill <>
* (flatten_await_stmt): Fix copyo.
* decl.c (reshape_init_class): Simplify.
* (module_state::read_language): Add null check.
* parser.c (build_range_temp): Avoid type_uses_auto.
(cp_parser_class_specifier_1): Add null check.
2021-08-31 Patrick Palka <>
PR c++/12672
* call.c (rejection_reason::call_varargs_p): Rename this
previously unused member to ...
(rejection_reason::least_p): ... this.
(arity_rejection): Add least_p parameter.
(add_template_candidate_real): When there are explicit
template arguments, check that the arity of the call agrees with
the arity of the function before attempting deduction.
(print_arity_information): Add least_p parameter.
(print_z_candidate): Adjust call to print_arity_information.
2021-08-31 Martin Sebor <>
* parser.c (cp_parser_selection_statement): Use direct initialization
instead of copy.
2021-08-31 Jason Merrill <>
* constexpr.c (explain_invalid_constexpr_fn): Use iloc_sentinel.
2021-08-31 Jason Merrill <>
PR c++/92193
* constexpr.c (cxx_eval_call_expression): Set it.
* pt.c (neglectable_inst_p): Check it.
2021-08-31 Marcel Vollweiler <>
* parser.c (cp_parser_omp_clause_device): Parse device-modifiers 'device_num'
and 'ancestor' in 'target device' clauses.
* semantics.c (finish_omp_clauses): Error handling. Constant device ids must
evaluate to '1' if 'ancestor' is used.
2021-08-30 Jason Merrill <>
PR c++/96286
* cp-tree.h (struct lang_type): Add erroneous bit-field.
* pt.c (limit_bad_template_recursion): Check it.
(instantiate_class_template_1): Set it.
2021-08-30 Jason Merrill <>
* constexpr.c (cxx_eval_outermost_constant_expr): Copy
expr location to result.
2021-08-30 Jason Merrill <>
PR c++/101460
* cp-tree.h (cxx_constant_value_sfinae): Declare.
* constexpr.c (cxx_constant_value_sfinae): New.
* pt.c (fold_targs_r, maybe_fold_fn_template_args): New.
(tsubst_copy_and_build) [CALL_EXPR]: Call
2021-08-30 Jason Merrill <>
* parser.c (cp_parser_simple_requirement): Warn about missing
2021-08-27 Jason Merrill <>
* typeck2.c (build_x_arrow): Do set TREE_TYPE when operand is
a dependent pointer.
2021-08-25 Andrew Pinski <>
PR c++/66590
* cp-objcp-common.c (cxx_block_may_fallthru): Handle
CLEANUP_STMT for the case which will be try/finally.
2021-08-25 Jakub Jelinek <>
PR c++/102019
* init.c (build_value_init_noctor): Ignore unnamed zero-width
2021-08-23 Jakub Jelinek <>
* parser.c (cp_parser_omp_clause_num_tasks,
cp_parser_omp_clause_grainsize): Parse the optional strict: modifier.
2021-08-20 Jakub Jelinek <>
* parser.c (cp_parser_handle_statement_omp_attributes): Determine if
(cp_parser_omp_error): New function.
(cp_parser_pragma): Handle PRAGMA_OMP_ERROR.
2021-08-20 Jakub Jelinek <>
* parser.c (cp_parser_omp_clause_depend_sink): Reject spurious
comma at the end of list. Don't parse closing paren here...
(cp_parser_omp_clause_depend): ... but here instead.
2021-08-19 Patrick Palka <>
PR c++/101803
* cp-tree.h (CONSTRUCTOR_IS_PAREN_INIT): Clarify comment.
2021-08-19 Jakub Jelinek <>
* parser.c (cp_parser_omp_requires): Don't call cp_lexer_nth_token_is
and optionally consume token if current token is CPP_EOF,
2021-08-19 Jakub Jelinek <>
* parser.c (cp_parser_omp_nothing): Use cp_parser_require_pragma_eol
instead of cp_parser_skip_to_pragma_eol.
2021-08-18 Patrick Palka <>
PR c++/101344
PR c++/101803
* cp-tree.h (CONSTRUCTOR_BRACES_ELIDED_P): Define.
* decl.c (reshape_init_r): Set it.
* pt.c (collect_ctor_idx_types): Recurse into a sub-CONSTRUCTOR
2021-08-18 Patrick Palka <>
PR c++/101883
* pt.c (convert_template_argument): Pass LOOKUP_IMPLICIT to
2021-08-18 Jakub Jelinek <>
* parser.c (cp_parser_omp_nothing): New function.
(cp_parser_pragma): Handle PRAGMA_OMP_NOTHING.
2021-08-18 Jakub Jelinek <>
* parser.c (cp_parser_omp_ordered): Return true instead of
false after emitting errors that the directive is not allowed in
pragma_stmt context.
(cp_parser_omp_target_update): Likewise.
(cp_parser_omp_cancellation_point): Change return type from void to
bool, return false if the directive should be ignored in pragma_stmt
(cp_parser_omp_target_enter_data, cp_parser_omp_target_exit_data):
Change return type from tree to bool, return false if the
directive should be ignored in pragma_stmt contexts.
(cp_parser_omp_target): Adjust callers of cp_parser_omp_target_*_data,
return their result directly.
(cp_parser_pragma): For PRAGMA_OMP_CANCELLATION_POINT return what
cp_parser_omp_cancellation_point returned. Return true instead of
false after emitting errors that the directive is not allowed in
pragma_stmt context.
2021-08-17 Jakub Jelinek <>
PR c++/101539
* cp-tree.h (enum cp_trait_kind): Add CPTK_IS_LAYOUT_COMPATIBLE.
(enum cp_built_in_function): Add CP_BUILT_IN_IS_CORRESPONDING_MEMBER.
(fold_builtin_is_corresponding_member, next_common_initial_seqence,
layout_compatible_type_p): Declare.
* parser.c (cp_parser_primary_expression): Handle
(cp_parser_trait_expr): Likewise.
* cp-objcp-common.c (names_builtin_p): Likewise.
* (diagnose_trait_expr): Handle
* decl.c (cxx_init_decl_processing): Register
__builtin_is_corresponding_member builtin.
* constexpr.c (cxx_eval_builtin_function_call): Handle
* semantics.c (is_corresponding_member_union,
is_corresponding_member_aggr, fold_builtin_is_corresponding_member):
New functions.
(trait_expr_value): Handle CPTK_IS_LAYOUT_COMPATIBLE.
(finish_trait_expr): Likewise.
* typeck.c (next_common_initial_seqence, layout_compatible_type_p):
New functions.
* cp-gimplify.c (cp_gimplify_expr): Fold
(cp_fold): Likewise.
* tree.c (builtin_valid_in_constant_expr_p): Handle
* cxx-pretty-print.c (pp_cxx_trait_expression): Handle
* class.c (remove_zero_width_bit_fields): Remove.
(layout_class_type): Don't call it.
2021-08-17 Jakub Jelinek <>
* parser.c (OMP_SCOPE_CLAUSE_MASK): Define.
(cp_parser_omp_scope): New function.
(cp_parser_omp_construct, cp_parser_pragma): Handle PRAGMA_OMP_SCOPE.
* pt.c (tsubst_expr): Handle OMP_SCOPE.
2021-08-12 Jakub Jelinek <>
* parser.c (cp_parser_omp_clause_name): Parse filter clause name.
(cp_parser_omp_clause_filter): New function.
(cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_FILTER.
(cp_parser_omp_masked): New function.
(cp_parser_omp_parallel): Handle parallel masked.
(cp_parser_omp_construct, cp_parser_pragma): Handle PRAGMA_OMP_MASKED.
* semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_FILTER.
* pt.c (tsubst_omp_clauses): Likewise.
(tsubst_expr): Handle OMP_MASKED.
2021-08-12 Sergei Trofimovich <>
PR c++/101219
* pt.c (tsubst_copy_and_build): Use build_ptrmemfunc_access_expr
to construct ptrmemfunc expression instantiation.
2021-08-12 Tobias Burnus <>
* parser.c (cp_parser_omp_clause_proc_bind): Accept
'primary' as alias for 'master'.
2021-08-12 Jakub Jelinek <>
* cp-tree.h (omp_declare_target_attr): New type.
(struct saved_scope): Change type of omp_declare_target_attribute
from int to vec<omp_declare_target_attr, va_gc> * and move it.
* parser.c (cp_parser_omp_declare_target): Instead of
incrementing scope_chain->omp_declare_target_attribute, push
a struct containing parser->lexer->in_omp_attribute_pragma to
the vector.
(cp_parser_omp_end_declare_target): Instead of decrementing
scope_chain->omp_declare_target_attribute, pop a structure
from it. Diagnose mismatching declare target vs.
end declare target syntax.
* semantics.c (finish_translation_unit): Use vec_safe_length
and vec_safe_truncate on scope_chain->omp_declare_target_attributes.
* decl2.c (cplus_decl_attributes): Use vec_safe_length
on scope_chain->omp_declare_target_attributes.
2021-08-12 Jakub Jelinek <>
* parser.c (cp_parser_lambda_body): Add temp overrides
for parser->{omp_declare_simd,oacc_routine,omp_attrs_forbidden_p}.
(cp_parser_statement): Restore parser->omp_attrs_forbidden_p for
(cp_parser_default_argument): Add temp override for
(cp_parser_late_parsing_omp_declare_simd): Diagnose declare simd
or declare variant in attribute syntax on a declaration immediately
following an OpenMP construct in pragma syntax.
2021-08-12 Jakub Jelinek <>
PR c++/94162
* method.c (cat_tag_for): Return cc_last for !CLASS_TYPE_P
or for classes not in std namespace.
2021-08-12 Jakub Jelinek <>
* name-lookup.c (finish_using_directive): Diagnose omp::directive
or omp::sequence attributes on using-directive.
2021-08-12 Jakub Jelinek <>
* parser.c (cp_parser_block_declaration): Call
cp_parser_using_directive for C++11 attributes followed by
using namespace tokens.
(cp_parser_using_directive): Parse C++11 attributes at the start
of the directive rather than at the end, only parse GNU attributes
at the end.
2021-08-12 Patrick Palka <>
PR c++/101663
* constexpr.c (cxx_eval_store_expression): Handle the lval=true
case in the early exit code path for empty stores with mismatched
2021-08-11 Patrick Palka <>
PR c++/101725
DR 2082
* cp-tree.h (unevaluated_p): Return true for REQUIRES_EXPR.
* decl.c (local_variable_p_walkfn): Don't walk into unevaluated
* parser.c (cp_parser_primary_expression) <case CPP_NAME>: Never
reject uses of local variables in unevaluated contexts.
* tree.c (cp_walk_subtrees) <case REQUIRES_EXPR>: Increment
cp_unevaluated_operand. Use cp_walk_tree directly instead of
WALK_SUBTREE to avoid the goto. Use REQUIRES_EXPR_REQS instead
of TREE_OPERAND directly.
2021-08-11 Jakub Jelinek <>
PR c++/101786
* decl2.c (var_defined_without_dynamic_init): Return true for
DECL_DECLARED_CONSTINIT_P with complete type and trivial destructor.
2021-08-11 Patrick Palka <>
PR c++/79501
* parser.c (maybe_adjust_declarator_for_dguide): New, split
out from ...
(cp_parser_init_declarator): ... here.
(cp_parser_member_declaration): Use it.
2021-08-11 Patrick Palka <>
PR c++/89062
* parser.c (cp_parser_parameter_declaration_list): Don't call
grokdeclarator if cp_parser_error_occurred.
(cp_parser_parameter_declaration): Simulate an error if we see
the beginning of a CTAD form, i.e. if we see an opening brace
after the decl-specifier-seq and the type is a CTAD placeholder.
2021-08-10 Jakub Jelinek <>
* parser.c (cp_parser_member_declaration): Move odsd declaration
before cp_parser_using_declaration call to avoid errors with
GCC 4.8 to 6.
2021-08-10 Jakub Jelinek <>
* parser.h (struct cp_omp_declare_simd_data): Remove
in_omp_attribute_pragma and clauses members, add loc and attribs.
(struct cp_oacc_routine_data): Remove loc member, add clauses
* parser.c (cp_finalize_omp_declare_simd): New function.
(cp_parser_handle_statement_omp_attributes): Mention in
function comment the function is used also for
(cp_parser_handle_directive_omp_attributes): New function.
(cp_parser_statement): Don't call
cp_parser_handle_statement_omp_attributes if statement doesn't
have attribute-specifier-seq at the beginning at all or if
if those attributes don't appertain to the statement.
(cp_parser_simple_declaration): Call
cp_parser_handle_directive_omp_attributes and
(cp_parser_explicit_instantiation): Likewise.
(cp_parser_init_declarator): Initialize prefix_attributes
only after parsing declarators.
(cp_parser_direct_declarator): Call
cp_parser_handle_directive_omp_attributes and
(cp_parser_member_declaration): Likewise.
(cp_parser_single_declaration): Likewise.
(cp_parser_omp_declare_simd): Don't initialize
data.in_omp_attribute_pragma, instead initialize
data.attribs[0] and data.attribs[1].
(cp_finish_omp_declare_variant): Remove
in_omp_attribute_pragma argument, instead use
(cp_parser_late_parsing_omp_declare_simd): Adjust
cp_finish_omp_declare_variant caller. Handle attribute-syntax
declare simd/variant.
2021-08-06 Tamar Christina <>
* cp-objcp-common.h (cxx_simulate_enum_decl): Pass vec<> by pointer.
* decl.c (cxx_simulate_enum_decl): Likewise.
2021-08-04 Jakub Jelinek <>
PR c++/101759
* parser.c (cp_parser_default_argument): Temporarily override
parser->omp_declare_simd and parser->oacc_routine to NULL.
2021-08-02 Patrick Palka <>
PR c++/100828
* (formula::formula): Use emplace_back instead of
(formula::branch): Insert a copy of m_current directly after
m_current instead of at the end of the list.
(formula::erase): Define.
(decompose_formula): Remove.
(decompose_antecedents): Remove.
(decompose_consequents): Remove.
(derive_proofs): Remove.
(max_problem_size): Remove.
(diagnose_constraint_size): Remove.
(subsumes_constraints_nonnull): Rewrite directly in terms of
decompose_clause and derive_proof, interleaving decomposition
with implication checking. Remove limit on constraint complexity.
Use formula::erase to free the current clause before moving on to
the next one.
2021-07-31 Jason Merrill <>
PR c++/96636
* decl.c (fixup_anonymous_aggr): Clear TYPE_NEEDS_CONSTRUCTING
after error.
2021-07-31 Jason Merrill <>
* ptree.c (cxx_print_type) [TYPE_PACK_EXPANSION]: Also print
2021-07-31 Jakub Jelinek <>
* parser.c (cp_parser_declaration): Handle OpenMP directives
in attribute-declaration.
2021-07-30 Jakub Jelinek <>
PR c++/101539
* cp-tree.h (enum cp_trait_kind): Add
(enum cp_built_in_function): Add
(fold_builtin_is_pointer_inverconvertible_with_class): Declare.
* parser.c (cp_parser_primary_expression): Handle
(cp_parser_trait_expr): Likewise.
* cp-objcp-common.c (names_builtin_p): Likewise.
* (diagnose_trait_expr): Handle
* decl.c (cxx_init_decl_processing): Register
__builtin_is_pointer_interconvertible_with_class builtin.
* constexpr.c (cxx_eval_builtin_function_call): Handle
* semantics.c (pointer_interconvertible_base_of_p,
fold_builtin_is_pointer_inverconvertible_with_class): New functions.
(finish_trait_expr): Likewise. Formatting fix.
* cp-gimplify.c (cp_gimplify_expr): Fold
fndecl_built_in_p just once.
(cp_fold): Likewise.
* tree.c (builtin_valid_in_constant_expr_p): Handle
fndecl_built_in_p just once.
* cxx-pretty-print.c (pp_cxx_trait_expression): Handle
2021-07-30 Jason Merrill <>
* class.c (finish_struct_anon): Improve comment.
* decl.c (fixup_anonymous_aggr): Reject anonymous struct
with bases.
2021-07-30 Jakub Jelinek <>
* parser.c (cp_parser_statement): Rollback attributes not just
when std_attrs is non-NULL, but whenever
cp_parser_std_attribute_spec_seq parsed any tokens.
2021-07-30 Jakub Jelinek <>
PR c++/101582
* parser.c (cp_parser_skip_std_attribute_spec_seq): Add a forward
(cp_parser_declaration): Parse empty-declaration and
(cp_parser_toplevel_declaration): Don't parse empty-declaration here.
2021-07-28 Martin Sebor <>
* init.c: Include new header.
2021-07-27 Marek Polacek <>
DR 1512
PR c++/99701
* cp-gimplify.c (cp_fold): Remove {LE,LT,GE,GT_EXPR} from
a switch.
* typeck.c (cp_build_binary_op): Reject ordered comparison
of two null pointers.
2021-07-26 Jakub Jelinek <>
* parser.h (struct cp_lexer): Add orphan_p member.
* parser.c (cp_parser_statement): Don't change in_omp_attribute_pragma
upon restart from CPP_PRAGMA handling. Fix up condition when a lexer
should be destroyed and adjust saved_tokens if it records tokens from
the to be destroyed lexer.
(cp_parser_omp_section_scan): New function.
(cp_parser_omp_scan_loop_body): Use it. If
parser->lexer->in_omp_attribute_pragma, allow optional comma
after scan.
(cp_parser_omp_sections_scope): Use cp_parser_omp_section_scan.
2021-07-23 Jakub Jelinek <>
* parser.h (struct cp_parser): Add omp_attrs_forbidden_p member.
* parser.c (cp_parser_handle_statement_omp_attributes): Diagnose
mixing of attribute and pragma syntax directives when seeing
omp::directive if parser->omp_attrs_forbidden_p or if attribute syntax
directives are followed by OpenMP pragma.
(cp_parser_statement): Clear parser->omp_attrs_forbidden_p after
the cp_parser_handle_statement_omp_attributes call.
(cp_parser_omp_structured_block): Add disallow_omp_attrs argument,
if true, set parser->omp_attrs_forbidden_p.
(cp_parser_omp_scan_loop_body, cp_parser_omp_sections_scope): Pass
false as disallow_omp_attrs to cp_parser_omp_structured_block.
(cp_parser_omp_parallel, cp_parser_omp_task): Set
2021-07-21 Thomas Schwinge <>
Joseph Myers <>
Cesar Philippidis <>
* parser.c (cp_parser_omp_clause_name): Handle 'nohost'.
(cp_parser_oacc_all_clauses): Handle 'PRAGMA_OACC_CLAUSE_NOHOST'.
* pt.c (tsubst_omp_clauses): Handle 'OMP_CLAUSE_NOHOST'.
* semantics.c (finish_omp_clauses): Likewise.
2021-07-21 Jakub Jelinek <>
PR c++/101516
* semantics.c (finish_omp_reduction_clause): Also call
complete_type_or_else and return true if it fails.
2021-07-19 Iain Sandoe <>
PR c++/95520
* (struct coroutine_info): Add fields for
actor and destroy function decls.
(to_ramp): New.
(coro_get_ramp_function): New.
(coro_get_actor_function): New.
(coro_get_destroy_function): New.
(act_des_fn): Set up mapping between ramp, actor and
destroy functions.
(morph_fn_to_coro): Adjust interface to the builder for
helper function decls.
* mangle.c (write_encoding): Handle coroutine helpers.
(write_unqualified_name): Handle lambda coroutine helpers.
2021-07-16 Patrick Palka <>
PR c++/101233
* pt.c (alias_ctad_tweaks): Clear cp_unevaluated_operand for
substituting DECL_ARGUMENTS.
2021-07-16 Patrick Palka <>
DR 960
PR c++/99664
* search.c (check_final_overrider): Compare TYPE_REF_IS_RVALUE
when the return types are references.
2021-07-16 Marek Polacek <>
* typeck2.c (check_narrowing): Don't suppress the pedantic error
in system headers.
2021-07-15 Jakub Jelinek <>
PR c++/101443
* cp-gimplify.c (cp_fold): For comparisons with NULLPTR_TYPE
operands, fold them right away to true or false.
2021-07-15 Jason Merrill <>
PR c++/101095
* cp-objcp-common.c (cp_common_init_ts): Mark types as types.
(cp_tree_size): Remove redundant entries.
2021-07-14 Patrick Palka <>
PR c++/88252
* cp-tree.h (TEMPLATE_TYPE_PARM_FOR_CLASS): Remove.
* pt.c (push_template_decl): Remove TEMPLATE_TYPE_PARM_FOR_CLASS
(redeclare_class_template): Likewise.
(forwarding_reference_p): Define.
(maybe_adjust_types_for_deduction): Use it instead. Add 'tparms'
(unify_one_argument): Pass tparms to
(try_one_overload): Likewise.
(unify): Likewise.
(rewrite_template_parm): Remove TEMPLATE_TYPE_PARM_FOR_CLASS
2021-07-14 Jason Merrill <>
* class.c (struct find_final_overrider_data): Use auto_vec.
(find_final_overrider): Remove explicit release.
* (process_conditional): Use auto_vec.
* cp-gimplify.c (struct cp_genericize_data): Use auto_vec.
(cp_genericize_tree): Remove explicit release.
* parser.c (cp_parser_objc_at_property_declaration): Use
* semantics.c (omp_reduction_lookup): Use auto_vec.
2021-07-14 Marek Polacek <>
PR c++/101371
* constexpr.c (cxx_eval_array_reference): Create a new .object
and .ctor for the non-aggregate non-scalar case too when
2021-07-12 Patrick Palka <>
PR c++/79501
PR c++/100983
* decl.c (grokfndecl): Don't require that deduction guides are
declared at namespace scope. Check that class-scope deduction
guides have the same access as the member class template.
(grokdeclarator): Pretend class-scope deduction guides are static.
* search.c (lookup_member): Don't use a BASELINK for (class-scope)
deduction guides.
2021-07-10 Patrick Palka <>
PR c++/82110
* init.c (build_aggr_init): Return error_mark_node if
expand_aggr_init_1 returns false.
(expand_default_init): Change return type to bool. Return false
on error, true on success.
(expand_aggr_init_1): Likewise.
2021-07-09 Jason Merrill <>
PR c++/101098
* decl.c (function_requirements_equivalent_p): Only compare
trailing requirements on a specialization.
2021-07-09 Iain Sandoe <>
* (build_actor_fn): Move common code to
(build_destroy_fn): Likewise.
(act_des_fn): Build the void return here. Ensure that the
source location matches the original function.
2021-07-09 Iain Sandoe <>
(coro_rewrite_function_body): Connect the replacement
function block to the block nest correctly.
2021-07-09 Patrick Palka <>
PR c++/101181
* (tsubst_requires_expr): Pass complain/in_decl to
* cp-tree.h (add_extra_args): Add complain/in_decl parameters.
* pt.c (build_extra_args): Make a copy of args.
(add_extra_args): Add complain/in_decl parameters. Enable the
code for handling the case where the extra arguments are
(tsubst_pack_expansion): Pass complain/in_decl to
(tsubst_template_args): Handle missing template arguments.
(tsubst_expr) <case IF_STMT>: Pass complain/in_decl to
2021-07-09 Patrick Palka <>
PR c++/101247
* pt.c (any_template_parm_r) <case TEMPLATE_DECL>: Just walk the
2021-07-08 Martin Sebor <>
PR bootstrap/101372
* (identifier): Suppress warning.
(module_state::read_macro_maps): Remove warning suppression.
(module_state::install_macros): Ditto.
2021-07-08 Marek Polacek <>
PR c++/101087
* cp-tree.h (unevaluated_p): New.
* except.c (check_noexcept_r): Use it. Don't walk into
unevaluated operands.
2021-07-08 Martin Sebor <>
PR bootstrap/101374
* (module_state::read_macro_maps): Temporarily disable
(module_state::install_macros): Same.
2021-07-06 Martin Sebor <>
* error.c (cp_printer): Remove support for %G and %K.
2021-07-02 Jakub Jelinek <>
* parser.h (struct cp_lexer): Add in_omp_attribute_pragma member.
(struct cp_omp_declare_simd_data): Likewise.
* cp-tree.h (enum cp_tree_index): Add CPTI_OMP_IDENTIFIER.
(omp_identifier): Define.
* parser.c (cp_parser_skip_to_pragma_eol): Handle
in_omp_attribute_pragma CPP_PRAGMA_EOL followed by CPP_EOF.
(cp_parser_require_pragma_eol): Likewise.
(struct cp_omp_attribute_data): New type.
(cp_parser_handle_statement_omp_attributes): New function.
(cp_parser_statement): Handle OpenMP directives in statement's
(cp_parser_omp_directive_args, cp_parser_omp_sequence_args): New
(cp_parser_std_attribute): Handle omp::directive and omp::sequence
(cp_parser_omp_all_clauses): If in_omp_attribute_pragma, allow
a comma also before the first clause.
(cp_parser_omp_allocate): Likewise.
(cp_parser_omp_atomic): Likewise.
(cp_parser_omp_depobj): Likewise.
(cp_parser_omp_flush): Likewise.
(cp_parser_omp_ordered): Likewise.
(cp_parser_omp_declare_simd): Save in_omp_attribute_pragma
into struct cp_omp_declare_simd_data.
(cp_finish_omp_declare_variant): Add in_omp_attribute_pragma
argument. If set, allow a comma also before match clause.
(cp_parser_late_parsing_omp_declare_simd): If in_omp_attribute_pragma,
allow a comma also before the first clause. Adjust
cp_finish_omp_declare_variant caller.
(cp_parser_omp_declare_target): If in_omp_attribute_pragma, allow
a comma also before the first clause.
(cp_parser_omp_declare_reduction_exprs): Likewise.
(cp_parser_omp_requires): Likewise.
* decl.c (initialize_predefined_identifiers): Initialize
* decl2.c (cplus_decl_attributes): Reject omp::directive and
omp::sequence attributes.
2021-07-02 Jakub Jelinek <>
PR c/101297
* parser.c (cp_parser_omp_atomic): Consume comma only if it
appears before a CPP_NAME.
2021-07-02 Patrick Palka <>
PR c++/101247
* pt.c (any_template_parm_r) <case TEMPLATE_DECL>: Rewrite to
use common_enclosing_class and to not depend on the TREE_TYPE
of outer levels pointing to the corresponding primary template.
2021-07-01 Patrick Palka <>
PR c++/101194
* constexpr.c (cxx_eval_array_reference): When the element type
is an empty type and the corresponding element is omitted, just
return an empty CONSTRUCTOR instead of attempting value
2021-07-01 Patrick Palka <>
PR c++/96204
* pt.c (finish_template_variable): Pass the partially
instantiated template and its args to instantiate_template.
(instantiate_class_template_1): No need to call
push_nested_class and pop_nested_class around the call to
(instantiate_template_1): Pass the partially instantiated
template to lookup_template_variable.
(most_specialized_partial_spec): Use push_access_scope_guard
to set the access scope appropriately. Use
deferring_access_check_sentinel to force access to get checked
(instantiate_decl): Just pass the VAR_DECL to
2021-06-30 Patrick Palka <>
* (get_normalized_constraints_from_decl): Use
push_access_scope_guard instead of push_nested_class_guard.
* cp-tree.h (struct push_nested_class_guard): Replace with ...
(struct push_access_scope_guard): ... this.
* pt.c (push_access_scope): When the argument corresponds to
a class type, push the class instead of its context.
(pop_access_scope): Adjust accordingly.
2021-06-30 Marek Polacek <>
PR c++/100975
DR 2397
* decl.c (create_array_type_for_decl): Allow array of auto.
2021-06-29 Jason Merrill <>
* pt.c (instantiate_decl): Only consider partial specializations of
actual variable templates.
2021-06-26 Patrick Palka <>
PR c++/96204
* pt.c (instantiate_class_template_1): Enter the scope of the
type when calling most_specialized_partial_spec.
2021-06-26 Jason Merrill <>
PR c++/101040
PR c++/97566
* class.c (is_empty_field): Handle null argument.
* constexpr.c (cxx_eval_bare_aggregate): Discard initializer
for empty field.
2021-06-26 Marek Polacek <>
PR c++/100752
* parser.c (cp_parser_declarator): Pass flags down to
cp_parser_declarator. Also pass static_p/member_p.
2021-06-25 Martin Sebor <>
* call.c (build_over_call): Replace direct uses of TREE_NO_WARNING
with warning_suppressed_p, suppress_warning, and copy_no_warning, or
nothing if not necessary.
(set_up_extended_ref_temp): Same.
* class.c (layout_class_type): Same.
* (constraint_satisfaction_value): Same.
* (finish_co_await_expr): Same.
(finish_co_yield_expr): Same.
(finish_co_return_stmt): Same.
(build_actor_fn): Same.
(coro_rewrite_function_body): Same.
(morph_fn_to_coro): Same.
* cp-gimplify.c (genericize_eh_spec_block): Same.
(gimplify_expr_stmt): Same.
(cp_genericize_r): Same.
(cp_fold): Same.
* cp-ubsan.c (cp_ubsan_instrument_vptr): Same.
* cvt.c (cp_fold_convert): Same.
(convert_to_void): Same.
* decl.c (wrapup_namespace_globals): Same.
(grokdeclarator): Same.
(finish_function): Same.
(require_deduced_type): Same.
* decl2.c (no_linkage_error): Same.
(c_parse_final_cleanups): Same.
* except.c (expand_end_catch_block): Same.
* init.c (build_new_1): Same.
(build_new): Same.
(build_vec_delete_1): Same.
(build_vec_init): Same.
(build_delete): Same.
* method.c (defaultable_fn_check): Same.
* parser.c (cp_parser_fold_expression): Same.
(cp_parser_primary_expression): Same.
* pt.c (push_tinst_level_loc): Same.
(tsubst_copy): Same.
(tsubst_omp_udr): Same.
(tsubst_copy_and_build): Same.
* rtti.c (build_if_nonnull): Same.
* semantics.c (maybe_convert_cond): Same.
(finish_return_stmt): Same.
(finish_parenthesized_expr): Same.
(cp_check_omp_declare_reduction): Same.
* tree.c (build_cplus_array_type): Same.
* typeck.c (build_ptrmemfunc_access_expr): Same.
(cp_build_indirect_ref_1): Same.
(cp_build_function_call_vec): Same.
(warn_for_null_address): Same.
(cp_build_binary_op): Same.
(unary_complex_lvalue): Same.
(cp_build_modify_expr): Same.
(build_x_modify_expr): Same.
(convert_for_assignment): Same.
2021-06-24 Patrick Palka <>
PR c++/98832
* pt.c (maybe_aggr_guide): Handle alias templates appropriately.
2021-06-24 Patrick Palka <>
PR c++/101182
* (evaluate_requires_expr): Adjust function comment.
* cp-gimplify.c (cp_genericize_r) <case REQUIRES_EXPR>: Move to ...
(cp_fold) <case REQUIRES_EXPR>: ... here.
2021-06-24 Jakub Jelinek <>
* parser.c (cp_omp_split_clauses): Pass C_ORT_OMP_TARGET instead of
C_ORT_OMP for clauses on target construct.
(OMP_TARGET_CLAUSE_MASK): Add in_reduction clause.
(cp_parser_omp_target): For non-combined target add
map (always, tofrom:) clauses for OMP_CLAUSE_IN_REDUCTION. Pass
C_ORT_OMP_TARGET to finish_omp_clauses.
* semantics.c (handle_omp_array_sections_1): Adjust ort handling
for addition of C_ORT_OMP_TARGET and simplify, mapping clauses are
never present on C_ORT_*DECLARE_SIMD.
(handle_omp_array_sections): Likewise.
(finish_omp_clauses): Likewise. Handle OMP_CLAUSE_IN_REDUCTION
corresponding map clauses.
* pt.c (tsubst_expr): Pass C_ORT_OMP_TARGET instead of C_ORT_OMP for
clauses on target construct.
2021-06-23 Patrick Palka <>
PR c++/101174
* pt.c (push_access_scope): For artificial deduction guides,
set the access scope to that of the constructor.
(pop_access_scope): Likewise.
(build_deduction_guide): Don't set DECL_CONTEXT on the guide.
2021-06-23 Patrick Palka <>
PR c++/86439
* call.c (print_error_for_call_failure): Constify 'args' parameter.
(perform_dguide_overload_resolution): Define.
* cp-tree.h: (perform_dguide_overload_resolution): Declare.
* pt.c (do_class_deduction): Use perform_dguide_overload_resolution
instead of build_new_function_call. Don't use tf_decltype or
set cp_unevaluated_operand. Remove unnecessary NULL_TREE tests.
2021-06-21 Patrick Palka <>
PR c++/67302
* typeck.c (check_return_expr): Call maybe_undo_parenthesized_ref
sooner, before the NRVO handling.
2021-06-21 Patrick Palka <>
PR c++/80431
* tree.c (bot_replace): Use convert_to_base to build the
conversion to the (morally) virtual base.
2021-06-21 Jakub Jelinek <>
PR inline-asm/100785
* typeck.c (cxx_mark_addressable): Diagnose trying to make
bit-fields addressable.
2021-06-17 Jason Merrill <>
PR c++/101106
* decl.c (duplicate_decls): Make 'deleted after first declaration'
pedwarn on by default.
2021-06-17 Jason Merrill <>
PR c++/101029
* init.c (build_vec_init): Preserve the type of base.
2021-06-16 Jason Merrill <>
PR c++/101078
PR c++/91706
* pt.c (tsubst_baselink): Update binfos in non-dependent case.
2021-06-15 Robin Dapp <>
* decl.c (duplicate_decls): Likewise.
2021-06-14 Tobias Burnus <>
PR c/100913
* parser.c (cp_parser_omp_clause_affinity): No need to set iterator
var in the error case.
2021-06-13 Trevor Saunders <>
* constexpr.c (cxx_eval_call_expression): Iterate over vec<>
with range based for.
(cxx_eval_store_expression): Likewise.
(cxx_eval_loop_expr): Likewise.
* decl.c (wrapup_namespace_globals): Likewise.
(cp_finish_decl): Likewise.
(cxx_simulate_enum_decl): Likewise.
* parser.c (cp_parser_postfix_expression): Likewise.
2021-06-12 Jason Merrill <>
PR c++/101029
* init.c (build_vec_init): Shortcut [0] case.
2021-06-12 Jason Merrill <>
* pt.c (lookup_template_class_1): Shortcut current_class_type.
2021-06-11 Patrick Palka <>
DR 1227
PR c++/96560
* pt.c (tsubst_arg_types): Rearrange so that we substitute into
TYPE_ARG_TYPES in forward order while short circuiting
appropriately. Adjust formatting.
2021-06-11 Jakub Jelinek <>
PR c++/100974
* cp-tree.h (struct saved_scope): Add consteval_if_p
member. Formatting fix for the discarded_stmt comment.
(in_consteval_if_p, IF_STMT_CONSTEVAL_P): Define.
* parser.c (cp_parser_lambda_expression): Temporarily disable
in_consteval_if_p when parsing lambda body.
(cp_parser_selection_statement): Parse consteval if.
* decl.c (struct named_label_entry): Add in_consteval_if member.
(level_for_consteval_if): New function.
(poplevel_named_label_1, check_previous_goto_1, check_goto): Handle
consteval if.
* constexpr.c (cxx_eval_builtin_function_call): Clarify in comment
why CP_BUILT_IN_IS_CONSTANT_EVALUATED needs to *non_constant_p
for !ctx->manifestly_const_eval.
(cxx_eval_conditional_expression): For IF_STMT_CONSTEVAL_P evaluate
condition as if it was __builtin_is_constant_evaluated call.
(potential_constant_expression_1): For IF_STMT_CONSTEVAL_P always
recurse on both branches.
* cp-gimplify.c (genericize_if_stmt): Genericize IF_STMT_CONSTEVAL_P
as the else branch.
* pt.c (tsubst_expr) <case IF_STMT>: Copy IF_STMT_CONSTEVAL_P.
Temporarily set in_consteval_if_p when recursing on
IF_STMT_CONSTEVAL_P then branch.
(tsubst_lambda_expr): Temporarily disable
in_consteval_if_p when instantiating lambda body.
* call.c (immediate_invocation_p): Return false when
2021-06-11 Marek Polacek <>
PR c++/100995
* constexpr.c (maybe_constexpr_fn): New.
* cp-tree.h (maybe_constexpr_fn): Declare.
* semantics.c (find_std_constant_evaluated_r): New.
(maybe_warn_for_constant_evaluated): New.
(finish_if_stmt_cond): Call it.
2021-06-10 Patrick Palka <>
PR c++/67829
* pt.c (unify) <case BOUND_TEMPLATE_TEMPLATE_PARM>: When
a template template parameter, adjust to the
TEMPLATE_TEMPLATE_PARAMETER before falling through.
2021-06-10 Patrick Palka <>
PR c++/100946
* (normalize_placeholder_type_constraints): When
normalizing a non-templated return-type-requirement, add a dummy
level to initial_parms.
2021-06-08 Marek Polacek <>
PR c++/100065
* decl.c (grokdeclarator): Store a value-dependent
explicit-specifier even for deduction guides.
2021-06-08 Jason Merrill <>
* parser.c (cp_parser_string_literal): Adjust diagnostic.
2021-06-08 Jason Merrill <>
PR c++/100963
* call.c (perfect_conversion_p): Check check_narrowing.
2021-06-08 Jason Merrill <>
PR c++/91706
* name-lookup.c (get_class_binding): Keep a BASELINK.
(set_inherited_value_binding_p): Adjust.
* lambda.c (is_lambda_ignored_entity): Adjust.
* pt.c (lookup_template_function): Copy a BASELINK before
modifying it.
2021-06-08 Jason Merrill <>
PR c++/91706
* semantics.c (baselink_for_fns): Fix BASELINK_BINFO.
2021-06-08 Jason Merrill <>
* (duplicate_hash::hash): Comment out.
(trees_in::tree_value): Adjust loop counter.
2021-06-08 Jason Merrill <>
PR c++/100102
* init.c (build_offset_ref): Return the BASELINK for a static
member function.
2021-06-07 Patrick Palka <>
PR c++/100918
* parser.c (cp_parser_lookup_name): Check access of the lookup
result before we potentially adjust an injected-class-name to
2021-06-06 Jakub Jelinek <>
PR c/100902
* parser.c (cp_parser_omp_target): Call c_omp_adjust_map_clauses
even when target is combined with other constructs.
2021-06-04 Patrick Palka <>
PR c++/100893
* pt.c (convert_template_argument): Strip top-level cv-quals
on the substituted type of a non-type template parameter.
2021-06-04 Patrick Palka <>
PR c++/100102
* pt.c (tsubst_function_decl): Remove old code for reducing
args when it has excess levels.
2021-06-04 Jakub Jelinek <>
PR c++/100872
* name-lookup.c (maybe_save_operator_binding): Add op_attr after all
ATTR_IS_DEPENDENT attributes in the DECL_ATTRIBUTES list rather than
to the start.
2021-06-03 Patrick Palka <>
PR c++/100592
* decl.c (make_typename_type): After calling
lookup_template_class, adjust the result to its TYPE_NAME and
then consider the tf_keep_type_decl flag.
2021-06-03 Patrick Palka <>
PR c++/100862
* pt.c (set_current_access_from_decl): Move to ...
* class.c (set_current_access_from_decl): ... here.
(handle_using_decl): Use it to propagate the access of the
using-enum decl to the copy of the imported enumerator.
* cp-tree.h (set_current_access_from_decl): Declare.
* decl.c (build_enumerator): Simplify using make_temp_override
and set_current_access_from_decl.
2021-06-03 Jakub Jelinek <>
PR c++/100859
* semantics.c (handle_omp_array_sections_1): For
finish_non_static_data_member and allow this as base.
(finish_omp_clauses): Move OMP_CLAUSE_AFFINITY
after depend only cases. Let this be diagnosed by !lvalue_p
case for OMP_CLAUSE_{AFFINITY,DEPEND} and remove useless
* pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_AFFINITY.
2021-06-02 Jason Merrill <>
PR c++/100838
* call.c (convert_like_internal): Clear tf_no_cleanup when
(build_user_type_conversion_1): Only add ck_rvalue if
2021-06-01 Patrick Palka <>
PR c++/65816
* init.c (expand_aggr_init_1): Check
type_has_non_user_provided_default_constructor instead of
2021-06-01 Jason Merrill <>
PR c++/91859
* call.c (build_op_delete_call): Don't set CALL_FROM_NEW_OR_DELETE_P
for destroying delete.
* init.c (build_delete): Don't clobber before destroying delete.
2021-06-01 Jason Merrill <>
PR c++/94492
* decl2.c (cp_warn_deprecated_use): Check warning_enabled_at.
2021-05-31 Richard Biener <>
PR c++/88601
* cp-objcp-common.c (names_builtin_p): Handle
* cp-tree.h (build_x_shufflevector): Declare.
* parser.c (cp_parser_postfix_expression): Handle
* pt.c (tsubst_copy_and_build): Handle IFN_SHUFFLEVECTOR.
* typeck.c (build_x_shufflevector): Build either a lowered
VEC_PERM_EXPR or an unlowered shufflevector via a temporary
internal function IFN_SHUFFLEVECTOR.
2021-05-28 Jason Merrill <>
* constexpr.c (build_data_member_initialization): Use tsi_range.
(build_constexpr_constructor_member_initializers): Likewise.
(constexpr_fn_retval, cxx_eval_statement_list): Likewise.
(potential_constant_expression_1): Likewise.
* (await_statement_expander): Likewise.
(await_statement_walker): Likewise.
* (trees_out::core_vals): Likewise.
* pt.c (tsubst_expr): Likewise.
* semantics.c (set_cleanup_locs): Likewise.
2021-05-28 Jason Merrill <>
PR c++/100797
PR c++/95719
* call.c (build_over_call): Adjust base_binfo in
resolves_to_fixed_type_p case.
2021-05-28 Jakub Jelinek <>
PR middle-end/99928
* semantics.c (handle_omp_array_sections): Copy
(finish_omp_clauses): Move not just OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT
marked clauses last, but also OMP_CLAUSE_MAP_IMPLICIT. Add
map_firstprivate_head bitmap, set it for GOMP_MAP_FIRSTPRIVATE_POINTER
maps and silently remove OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT if it is
present too. For OMP_CLAUSE_MAP_IMPLICIT silently remove the clause
if present in map_head, map_field_head or map_firstprivate_head
2021-05-28 Tobias Burnus <>
* parser.c (cp_parser_omp_clause_affinity): New.
(cp_parser_omp_clause_name, cp_parser_omp_var_list_no_open,
cp_parser_omp_all_clauses, OMP_TASK_CLAUSE_MASK): Handle affinity
* semantics.c (handle_omp_array_sections_1, handle_omp_array_sections,
finish_omp_clauses): Likewise.
2021-05-27 Matthias Kretz <>
PR c++/100716
* error.c (dump_template_bindings): Include code to print
"[with" and ']', conditional on whether anything is printed at
all. This is tied to whether a semicolon is needed to separate
multiple template parameters. If the template argument repeats
the template parameter (T = T), then skip the parameter.
(dump_substitution): Moved code to print "[with" and ']' to
(dump_function_decl): Partial revert of PR50828, which masked
TFF_TEMPLATE_NAME for all of dump_function_decl. Now
TFF_TEMPLATE_NAME is masked for the scope of the function and
only carries through to dump_function_name.
(dump_function_name): Avoid calling dump_template_parms if
2021-05-27 Matthias Kretz <>
PR c++/100763
* error.c: Call dump_scope when printing a typedef.
2021-05-27 Patrick Palka <>
PR c++/99893
* tree.c (cp_walk_subtrees) <case STATIC_ASSERT>: New case.
2021-05-27 Jason Merrill <>
PR c++/86355
* pt.c (use_pack_expansion_extra_args_p): Don't compare
args from the same argument pack.
2021-05-27 Patrick Palka <>
DR 1315
PR c++/67593
PR c++/96555
* pt.c (process_partial_specialization): Don't error on a
non-simple non-type template argument that involves template
(for_each_template_parm_r): Don't walk TRAIT_EXPR, PLUS_EXPR,
MULT_EXPR, or SCOPE_REF when include_nondeduced_p is false.
2021-05-26 Patrick Palka <>
PR c++/100502
* typeck.c (finish_class_member_access_expr): Disable ahead
of time access checking during the member lookup.
2021-05-26 Patrick Palka <>
PR c++/100368
* tree.c (build_target_expr_with_type): Don't call force_rvalue
on CALL_EXPR initializer. Simplify now that bot_manip is no
longer a caller.
(bot_manip): Use force_target_expr instead of
2021-05-26 Patrick Palka <>
PR c++/97420
* cvt.c (noexcept_conv_p): Remove redundant checks and simplify.
(fnptr_conv_p): Don't call non_reference. Use INDIRECT_TYPE_P
instead of TYPE_PTR_P.
* pt.c (convert_nontype_argument_function): Look through
implicit INDIRECT_REFs before calling strip_fnptr_conv.
2021-05-25 Jakub Jelinek <>
PR c++/100666
* call.c (convert_arg_to_ellipsis): For expressions with NULLPTR_TYPE
and side-effects, temporarily disable -Wunused-result warning when
2021-05-21 Jakub Jelinek <>
PR middle-end/99928
* semantics.c (finish_omp_clauses): Move firstprivate clauses with
OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT to the end of the chain. Don't error
if a decl is mentioned both in map clause and in such firstprivate
2021-05-20 Jason Merrill <>
* call.c (reference_binding): Check for designator.
(implicit_conversion_1, build_special_member_call): Likewise.
* decl.c (reshape_init_r): Likewise.
* pt.c (do_class_deduction): Likewise.
* typeck2.c (digest_init_r): Likewise.
2021-05-20 Jason Merrill <>
PR c++/100489
* decl.c (reshape_init_class): Handle designator for
member of anonymous aggregate here.
* typeck2.c (process_init_constructor_record): Not here.
2021-05-20 Jonathan Wakely <>
* call.c (maybe_warn_array_conv): Use new warning option.
* decl.c (mark_inline_variable, grokdeclarator): Likewise.
* error.c (maybe_warn_cpp0x): Likewise.
* parser.c (cp_parser_primary_expression)
(cp_parser_std_attribute_spec): Likewise.
* pt.c (check_template_variable): Likewise.
2021-05-20 Jason Merrill <>
PR c++/100634
* pt.c (invalid_nontype_parm_type_p): Return true for COMPLEX_TYPE.
2021-05-20 Jason Merrill <>
PR c++/100659
* cp-tree.h (CONST_DECL_USING_P): Check for null TREE_TYPE.
2021-05-19 Jason Merrill <>
PR c++/100367
PR c++/96299
* method.c (genericize_spaceship): Use fold_build2 for scalar
2021-05-19 Jason Merrill <>
* pt.c (build_deduction_guide): Treat the implicit deduction guide
as a member of the class.
2021-05-19 Marek Polacek <>
PR c++/100596
* cp-tree.h (any_non_type_attribute_p): Remove.
* decl.c (grokdeclarator): Turn an error into a warning and only
warn for standard attributes.
* decl2.c (any_non_type_attribute_p): Remove.
* parser.c (cp_parser_elaborated_type_specifier): Turn an error
into a warning and only warn for standard attributes.
(cp_parser_member_declaration): Likewise.
2021-05-19 Martin Liska <>
PR testsuite/100658
* mangle.c (write_encoding): Fix typos.
2021-05-19 Jakub Jelinek <>
PR middle-end/99928
* parser.c (cp_parser_omp_master): Set OMP_MASTER_COMBINED on
master when combined with taskloop.
(cp_parser_omp_parallel): Don't set OMP_PARALLEL_COMBINED on
parallel master when not combined with taskloop.
2021-05-19 Jason Merrill <>
PR c++/100261
* rtti.c (get_tinfo_decl_direct): Check TYPE_TRANSPARENT_AGGR.
2021-05-19 Jason Merrill <>
PR c++/100372
* tree.c (strip_typedefs): Only look at the pattern of a
TYPE_PACK_EXPANSION if it's a type.
2021-05-18 Marek Polacek <>
* class.c (classtype_has_non_deleted_copy_ctor): Remove.
* (contains_wildcard_p): Likewise.
(get_template_head_requirements): Likewise.
(check_constrained_friend): Likewise.
(subsumes_constraints): Likewise.
* cp-tree.h (classtype_has_non_deleted_copy_ctor): Likewise.
(push_void_library_fn): Likewise.
(get_pattern_parm): Likewise.
(get_template_parms_at_level): Likewise.
(lambda_return_type): Likewise.
(get_template_head_requirements): Likewise.
(check_constrained_friend): Likewise.
(subsumes_constraints): Likewise.
* decl.c (push_void_library_fn): Likewise.
* lambda.c (lambda_return_type): Likewise.
* pt.c (get_template_parms_at_level): Likewise.
(get_pattern_parm): Likewise.
2021-05-18 Jason Merrill <>
PR c++/100644
* call.c (perfect_candidate_p): An implicitly deleted move
is not perfect.
2021-05-18 Andreas Krebbel <>
PR c++/100281
* cvt.c (cp_convert_to_pointer): Use the size of the target
pointer type.
* tree.c (cp_build_reference_type): Call
cp_build_reference_type_for_mode with VOIDmode.
(cp_build_reference_type_for_mode): Rename from
cp_build_reference_type. Add MODE argument and invoke
(strip_typedefs): Use build_pointer_type_for_mode and
cp_build_reference_type_for_mode for pointers and references.
2021-05-17 Jonathan Wakely <>
PR c++/100635
* call.c (convert_like_internal): Print different diagnostic if
the lvalue reference is const.
2021-05-14 Jason Merrill <>
PR c++/95870
* pt.c (enclosing_instantiation_of): Just compare
(regenerate_decl_from_template): Copy DECL_SOURCE_LOCATION.
2021-05-14 Marek Polacek <>
Jason Merrill <>
PR c++/99032
* cp-tree.h (any_non_type_attribute_p): Declare.
* decl.c (grokdeclarator): Diagnose when an attribute appertains to
a friend declaration that is not a definition.
* decl2.c (any_non_type_attribute_p): New.
* parser.c (cp_parser_decl_specifier_seq): Diagnose standard attributes
in the middle of decl-specifiers.
(cp_parser_elaborated_type_specifier): Diagnose when an attribute
appertains to a friend declaration that is not a definition.
(cp_parser_member_declaration): Likewise.
2021-05-12 Marek Polacek <>
* pt.c (tsubst_copy_and_build): Add warn_int_in_bool_context
2021-05-12 Marcel Vollweiler <>
* parser.c (cp_parser_omp_clause_map): Support map-type-modifier
2021-05-11 Jason Merrill <>
PR c++/100517
* typeck.c (build_reinterpret_cast_1): Check intype on
cast to vector.
2021-05-11 Patrick Palka <>
PR c++/51577
* name-lookup.c (maybe_save_operator_binding): Unconditionally
enable for all function templates, not just generic lambdas.
Handle compound-assignment operator expressions.
* typeck.c (build_x_compound_expr): Call maybe_save_operator_binding
in the type-dependent case.
(build_x_modify_expr): Likewise. Move declaration of 'op' closer
to its first use.
2021-05-11 Patrick Palka <>
PR c++/100138
* (tsubst_constraint): Set up cp_unevaluated.
(satisfy_atom): Set up iloc_sentinel before calling
* pt.c (tsubst_pack_expansion): When returning a rebuilt pack
expansion, carry over PACK_EXPANSION_LOCAL_P and
PACK_EXPANSION_SIZEOF_P from the original pack expansion.
2021-05-10 Richard Biener <>
PR middle-end/100464
PR c++/100468
* call.c (set_up_extended_ref_temp): Mark the temporary
addressable if the TARGET_EXPR was.
2021-05-10 Martin Liska <>
* decl.c (duplicate_decls): Use startswith
function instead of strncmp.
(cxx_builtin_function): Likewise.
(omp_declare_variant_finalize_one): Likewise.
(grokfndecl): Likewise.
* error.c (dump_decl_name): Likewise.
* mangle.c (find_decomp_unqualified_name): Likewise.
(write_guarded_var_name): Likewise.
(decl_tls_wrapper_p): Likewise.
* parser.c (cp_parser_simple_type_specifier): Likewise.
(cp_parser_tx_qualifier_opt): Likewise.
* pt.c (template_parm_object_p): Likewise.
(dguide_name_p): Likewise.
2021-05-10 Martin Liska <>
PR c++/99616
* decl.c (grokdeclarator): Remove redundant NULL check.
2021-05-07 Jason Merrill <>
* tree.c (rvalue): Assert expr is not a class lvalue.
2021-05-07 Jason Merrill <>
* cp-tree.h (build_stub_object): Declare.
* method.c (build_stub_object): No longer static.
* call.c (can_convert): Use it.
* tree.c (build_dummy_object): Adjust comment.
* typeck.c (cp_build_binary_op): Wrap SPACESHIP_EXPR in a
2021-05-07 Jason Merrill <>
* (build_co_await): Don't call 'rvalue'.
(flatten_await_stmt): Simplify initialization.
(morph_fn_to_coro): Change 'rvalue' to 'move'. Simplify.
2021-05-04 Tobias Burnus <>
* semantics.c (finish_omp_reduction_clause): Accept float + complex
for || and && reductions.
2021-05-03 Patrick Palka <>
PR c++/100362
* parser.c (cp_parser_class_head): Reinstate calls to pushclass
and popclass when parsing the base-clause that were removed in
2021-05-03 Patrick Palka <>
PR c++/68942
PR c++/100344
* pt.c (tsubst_copy_and_build) <case CALL_EXPR>: Set tf_conv
only when the callee is a FUNCTION_DECL.
2021-05-03 Marek Polacek <>
PR c++/100055
* decl.c (grokfndecl): Check current_template_parms.
2021-05-03 Marek Polacek <>
DR 1312
* constexpr.c (cxx_eval_constant_expression): Don't check
2021-05-01 Jason Merrill <>
* cp-tree.h (class ovl_iterator): Allow copying. Add op==.
(class ovl_range, class lkp_range): New.
* call.c (build_op_call_1, add_candidates): Use them.
(build_op_delete_call, has_trivial_copy_assign_p): Likewise.
(has_trivial_copy_p): Likewise.
* class.c (handle_using_decl, get_basefndecls): Likewise.
(maybe_warn_about_overly_private_class): Likewise.
(warn_hidden, add_implicitly_declared_members): Likewise.
(check_methods, clone_constructors_and_destructors): Likewise.
(type_has_user_nondefault_constructor): Likewise.
2021-04-29 Jason Merrill <>
* constexpr.c (cxx_fold_indirect_ref_1): Only set *empty_base if we
don't find a field.
2021-04-29 Jason Merrill <>
PR c++/51344
* decl2.c (grokfield): Call cplus_decl_attributes for friend.
(save_template_attributes): Use chainon.
* friend.c (do_friend): Remove attrlist parm.
* cp-tree.h (do_friend): Adjust.
* class.c (add_implicitly_declared_members): Adjust.
* decl.c (grokdeclarator): Adjust.
* pt.c (apply_late_template_attributes): Optimize.
2021-04-29 Jason Merrill <>
PR c++/97974
* class.c (finish_struct_anon_r): Drop complain parm.
Remove non-field diagnostic.
(finish_struct_anon): Adjust.
* decl.c (fixup_anonymous_aggr): Move non-field diagnostic here.
2021-04-29 Jason Merrill <>
* cp-tree.h (cp_evaluated): Add reset parm to constructor.
* parser.c (cp_parser_constant_expression): Change
allow_non_constant_p to int. Use cp_evaluated.
(cp_parser_initializer_clause): Pass 2 to allow_non_constant_p.
* semantics.c (finish_id_expression_1): Don't mess with
cp_unevaluated_operand here.
2021-04-29 Jason Merrill <>
* cp-tree.h: Clarify comments.
* pt.c (get_template_parm_object): Add assert.
* semantics.c (finish_compound_literal): Clear TREE_HAS_CONSTRUCTOR.
* tree.c (zero_init_expr_p): Check TREE_HAS_CONSTRUCTOR.
* typeck2.c (store_init_value): Likewise.
2021-04-29 Patrick Palka <>
PR c++/68942
* pt.c (tsubst_copy_and_build) <case CALL_EXPR>: When KOENIG_P,
set tf_conv during the initial substitution into the function.
2021-04-29 Jakub Jelinek <>
PR c++/100319
* semantics.c (finish_omp_clauses): Fix up check that variable
mentioned in detach clause doesn't appear in data-sharing clauses.
2021-04-28 Jakub Jelinek <>
* Remove #error that triggers if DEV-PHASE is empty.
2021-04-27 Jason Merrill <>
PR c++/92145
* class.c (classtype_has_depr_implicit_copy): Check DECL_CONTEXT
of operator=.
2021-04-27 Patrick Palka <>
PR c++/88580
* pt.c (tsubst_initializer_list): Correctly handle the case
where an argument inside a base initializer pack expansion is
itself a pack expansion.
2021-04-26 Patrick Palka <>
PR c++/100209
* constexpr.c (cxx_fold_indirect_ref): Try to canonicalize the
object/offset pair for a POINTER_PLUS_EXPR of a COMPONENT_REF
with a negative offset into one whose offset is nonnegative
before calling cxx_fold_indirect_ref_1.
2021-04-24 Patrick Palka <>
PR c++/89565
PR c++/93383
PR c++/95291
PR c++/99200
PR c++/99683
* pt.c (do_class_deduction): Punt if the initializer is
2021-04-24 Patrick Palka <>
PR c++/87709
* parser.c (cp_parser_type_id_1): If we see a template
placeholder, first try simulating an error before issuing
a real error.
2021-04-23 Patrick Palka <>
PR c++/98767
* cxx-pretty-print.c (pp_cxx_parameter_declaration_clause):
Adjust parameter list loop to iterate over 'types' instead of
'args'. Output the trailing '...' for a variadic function.
Remove PARM_DECL support.
(pp_cxx_requires_expr): Pretty print the parameter list directly
instead of going through pp_cxx_parameter_declaration_clause.
2021-04-23 Patrick Palka <>
DR 2374
* decl.c (is_direct_enum_init): Check the implicit
convertibility requirement added by CWG 2374.
2021-04-23 Martin Liska <>
* cp-tree.h (STATIC_ASSERT): Prefer static assert.
* lex.c (init_operators): Remove run-time check.
2021-04-22 Marek Polacek <>
PR c++/100161
* pt.c (tsubst_copy_and_build) <case PLUS_EXPR>: Test op0 and
op1 separately for value- or type-dependence.
2021-04-21 Marek Polacek <>
PR c++/96380
* parser.c (cp_parser_enum_specifier): Don't allow defining
types in enum-base.
2021-04-21 Martin Liska <>
2021-04-21 Martin Liska <>
* error.c (dump_decl): Use flags in dump_generic_node call.
2021-04-21 Martin Liska <>
* error.c (dump_decl): Use flags in dump_generic_node call.
2021-04-21 Martin Liska <>
* error.c (dump_decl): Support anonymous labels.
2021-04-20 Jason Merrill <>
PR c++/100109
* pt.c (find_parameter_packs_r): Look into enum initializers.
2021-04-19 Marek Polacek <>
PR c++/97536
* decl.c (grokvardecl): Given an error when a concept is not defined
at namespace scope.
2021-04-16 Jakub Jelinek <>
PR c++/100111
* constexpr.c (cxx_eval_store_expression): Don't add CONSTRUCTORs
for empty classes into *valp when types don't match even when *valp
is NULL.
2021-04-16 Marek Polacek <>
PR c++/99803
* decl.c (make_typename_type): Give an error and return when
name is is_overloaded_fn.
* parser.c (cp_parser_class_name): Don't check is_overloaded_fn
before calling make_typename_type.
2021-04-16 Patrick Palka <>
PR c++/99700
* constexpr.c (reduced_constant_expression_p): For array
CONSTRUCTORs, use a dedicated loop that additionally verifies
the CONSTRUCTOR spans the entire array.
2021-04-16 Jakub Jelinek <>
PR c++/99850
* parser.c (cp_parser_constraint_requires_parens) <case CPP_DEREF>:
If lambda_p, return pce_ok instead of pce_maybe_postfix.
2021-04-16 Jakub Jelinek <>
PR c++/99833
* pt.c (extract_locals_r): When handling DECL_EXPR of a structured
binding, add to data.internal also all corresponding structured
binding decls.
2021-04-16 Jason Merrill <>
PR c++/100079
* cp-tree.h (first_field): Declare.
* mangle.c (range_expr_nelts): New.
(write_expression): Improve class NTTP mangling.
* pt.c (get_template_parm_object): Clear TREE_HAS_CONSTRUCTOR.
* tree.c (zero_init_expr_p): Improve class NTTP handling.
* decl.c: Adjust comment.
2021-04-15 Jason Merrill <>
PR c++/80456
* call.c (build_new_method_call_1): Check again for side-effects
with a volatile object.
2021-04-15 Jason Merrill <>
PR c++/100101
PR c++/99583
* pt.c (find_parameter_packs_r) [FUNCTION_TYPE]: Walk into
* tree.c (cp_walk_subtrees): Not here.
2021-04-15 Jason Merrill <>
PR c++/100091
PR c++/99478
* parser.c (cp_parser_default_type_template_argument): Set
2021-04-15 Richard Sandiford <>
PR c++/98852
* typeck.c (merge_type_attributes_from): New function.
(cp_common_type): Use it for vector types.
2021-04-14 Jason Merrill <>
PR c++/100078
PR c++/93085
* pt.c (uses_outer_template_parms): Also look at default
template argument.
2021-04-14 Jason Merrill <>
PR c++/93314
* semantics.c (finish_id_expression_1): Clear cp_unevaluated_operand
for a non-static data member in a constant-expression.
2021-04-14 Patrick Palka <>
PR c++/83476
PR c++/99885
* pt.c (deducible_expression): Look through implicit
INDIRECT_REFs as well.
2021-04-14 Jason Merrill <>
PR c++/99478
* parser.c (cp_parser_lambda_expression): Reject lambda
in template parameter type.
2021-04-14 Jason Merrill <>
PR c++/90674
* decl.c (duplicate_decls): Don't propagate
DECL_INITIALIZED_IN_CLASS_P to a specialization.
2021-04-14 Jason Merrill <>
PR c++/88742
PR c++/49951
PR c++/58123
* semantics.c (set_cleanup_locs): New.
(do_poplevel): Call it.
* parser.c (cp_parser_compound_statement): Consume the }
before finish_compound_stmt.
2021-04-13 Jason Merrill <>
PR c++/100032
* pt.c (get_underlying_template): Compare TYPE_QUALS.
2021-04-13 Jason Merrill <>
PR c++/100054
PR c++/90479
* init.c (get_nsdmi): Do more context adjustment for local classes.
2021-04-13 Patrick Palka <>
PR c++/99008
* pt.c (do_class_deduction): Reject alias CTAD in C++17 mode
rather than issuing a pedwarn.
* typeck2.c (build_functional_cast_1): Handle CTAD uniformly
for consistent diagnostics.
2021-04-13 Jason Merrill <>
PR c++/91933
* class.c (build_base_path): Shortcut simple non-pointer case.
2021-04-13 Eric Botcazou <>
* (ordinary_loc_of): Test LINEMAPS_MACRO_LOWEST_LOCATION
of the linemap.
(module_state::write_location): Likewise.
2021-04-13 Patrick Palka <>
PR c++/97134
* pt.c (do_class_deduction): Look through EXPR_PACK_EXPANSION
when checking if the initializer is an equivalent class
placeholder template parameter.
2021-04-13 Patrick Palka <>
PR c++/99961
PR c++/99994
* (satisfy_normalized_constraints): Set
* parser.c (cp_parser_concept_definition): Likewise.
(cp_parser_requires_clause_opt): Likewise.
2021-04-12 Jason Merrill <>
PR c++/93085
* pt.c (uses_outer_template_parms): Handle non-type and template
template parameters specifically.
2021-04-11 Jason Merrill <>
PR c++/97974
* decl.c (fixup_anonymous_aggr): Prune all functions from
2021-04-10 Jason Merrill <>
PR c++/98800
PR c++/97399
* parser.c (cp_parser_direct_declarator): Don't
inject_this_parameter if static_p.
(cp_parser_omp_var_list_no_open): Parse 'this' even if
current_class_ptr isn't set for a better diagnostic.
2021-04-10 Jason Merrill <>
PR c++/99180
PR c++/93295
PR c++/93867
PR c++/99118
PR c++/96873
* pt.c (alias_ctad_tweaks): Handle failure better.
2021-04-10 Jason Merrill <>
PR c++/100006
* pt.c (find_parameter_packs_r) [TAG_DEFN]: Look into bases.
2021-04-09 Patrick Palka <>
(LAMBDA_EXPR_REGENERATING_TARGS): Replace these with ...
(tree_lambda_expr::regenerating_targs): Replace these with ...
(tree_lambda_expr::regen_info): ... this.
* (satisfy_declaration_constraints): Adjust
* lambda.c (build_lambda_expr): Likewise.
* pt.c (regenerated_lambda_fn_p): Likewise.
(most_general_lambda): Likewise.
(tsubst_lambda_expr): Likewise.
2021-04-09 Marek Polacek <>
PR c++/99806
* parser.c (cp_parser_member_declaration): Call
cp_parser_save_default_args even for function templates. Use
STRIP_TEMPLATE on the declaration we're passing.
2021-04-08 Patrick Palka <>
PR c++/99874
* (get_normalized_constraints_from_decl): Handle
regenerated lambdas.
(satisfy_declaration_constraints): Likewise. Check for
dependent args later.
* cp-tree.h (LAMBDA_EXPR_INSTANTIATED): Replace with ...
(tree_lambda_expr::regenerated_from): New data member.
(tree_lambda_expr::regenerating_targs): New data member.
(add_to_template_args): Declare.
(regenerated_lambda_fn_p): Likewise.
(most_general_lambda): Likewise.
* lambda.c (build_lambda_expr): Set LAMBDA_EXPR_REGENERATED_FROM
* pt.c (add_to_template_args): No longer static.
(tsubst_function_decl): Unconditionally propagate constraints on
the substituted function decl.
(instantiated_lambda_fn_p): Rename to ...
(regenerated_lambda_fn_p): ... this. Check
(most_general_lambda): Define.
(enclosing_instantiation_of): Adjust after renaming
(tsubst_lambda_expr): Don't set LAMBDA_EXPR_INSTANTIATED. Set
Don't substitute or set constraints on the regenerated lambda.
2021-04-08 Patrick Palka <>
PR c++/97679
* pt.c (build_deduction_guide): Document OUTER_ARGS. Substitute
them into the propagated constraints.
2021-04-08 Jason Merrill <>
PR c++/91849
* call.c (convert_like_internal): Improve reference diagnostic.
2021-04-08 Jakub Jelinek <>
PR c++/99859
* constexpr.c (addr_of_non_const_var): New function.
(cxx_bind_parameters_in_call): Set *non_constant_args to true
even if cp_walk_tree on arg with addr_of_non_const_var callback
returns true.
2021-04-08 Jason Merrill <>
PR c++/94529
* pt.c (determine_specialization): Improve diagnostic.
2021-04-08 Marek Polacek <>
PR c++/99844
* decl.c (build_explicit_specifier): Call
* except.c (build_noexcept_spec): Likewise.
2021-04-07 Jason Merrill <>
PR c++/41723
* parser.c (cp_parser_class_name): Check dependent_scope_p.
2021-04-07 Jason Merrill <>
PR c++/52625
* pt.c (maybe_process_partial_specialization): Check
2021-04-07 Jason Merrill <>
PR c++/92918
* name-lookup.c (push_class_level_binding_1): Do overload a new
function with a previous using-declaration.
2021-04-06 Jason Merrill <>
PR c++/96673
* init.c (get_nsdmi): Don't defer access checking.
2021-04-06 Jason Merrill <>
PR c++/99901
* decl.c (cp_finish_decl): mark_needed an implicitly inline
static data member with an out-of-class redeclaration.
2021-04-06 Jason Merrill <>
PR c++/91241
* mangle.c (write_compact_number): Add sanity check.
(write_local_name): Use list_length for parm number.
2021-04-06 Patrick Palka <>
PR c++/99899
* pt.c (do_auto_deduction): Don't exit early when deducing the
array type of a structured binding. Also handle adc_decomp_type
during constraint checking.
2021-04-05 Jason Merrill <>
PR c++/96311
* typeck.c (check_return_expr): Call mark_exp_read in dependent
2021-04-05 Jason Merrill <>
PR c++/98440
* typeck.c (build_reinterpret_cast_1): Don't perform
temporary materialization.
2021-04-05 Jason Merrill <>
PR c++/95317
* pt.c (lookup_template_class_1): Do tsubst_enum when
tsubsting a generic lambda.
2021-04-05 Jason Merrill <>
PR c++/95870
* pt.c (enclosing_instantiation_of): Compare DECL_SOURCE_LOCATION if
there is no enclosing non-lambda function.
2021-04-05 Nathan Sidwell <>
PR c++/99380
* (name_pending_imports): Drop 'atend' parm. Don't
query export when not needed.
(preprocess_module, preprocessed_module): Adjust.
2021-04-05 Jason Merrill <>
PR c++/99066
* pt.c (mark_decl_instantiated): Set DECL_EXTERNAL.
2021-04-05 Jason Merrill <>
PR c++/99201
* pt.c (class el_data): Add visited field.
(extract_local_specs): Pass it to cp_walk_tree.
(extract_locals_r): Walk into the body of a lambda.
2021-04-05 Jason Merrill <>
* ptree.c (cxx_print_decl): Check DECL_MODULE_IMPORT_P on
template result.
2021-04-04 Jason Merrill <>
PR c++/99643
* typeck2.c (massage_init_elt): Don't strip TARGET_EXPR.
2021-04-03 Marek Polacek <>
PR c++/91416
* parser.c: Create a GC root for attributes in a decl specifier.
(cp_parser_type_specifier): Push/pop ->attributes onto/from it.
2021-04-03 Jason Merrill <>
PR c++/91217
* pt.c (tsubst_lambda_expr): Skip the body block from
2021-04-03 Jason Merrill <>
PR c++/90664
* cvt.c (can_convert_qual): Check fnptr_conv_p.
2021-04-03 Jason Merrill <>
PR c++/97900
* pt.c (regenerate_decl_from_template): tsubst_decl
the parms.
2021-04-02 Patrick Palka <>
PR c++/99869
* parser.c (do_range_for_auto_deduction): Pass adc_variable_type
to do_auto_deduction.
2021-04-02 Patrick Palka <>
PR c++/99586
* semantics.c (finish_compound_literal): Check
template_placeholder_p instead of type_uses_auto.
2021-04-02 Jason Merrill <>
PR c++/97938
* cp-tree.h (PACK_EXPANSION_AUTO_P): New.
* lambda.c (add_capture): Set it.
* pt.c (tsubst_pack_expansion): Handle it.
2021-04-02 Nathan Sidwell <>
* cp-tree.h (lang_decl_base): Correct module flag comment.
* (trees_in::assert_definition): Break out
not_tmpl var.
(trees_out::lang_decl_bools): Do not write purview for header units.
2021-04-01 Marek Polacek <>
PR c++/99831
* method.c (defaulted_late_check): ++ and -- function_depth around
the call to synthesize_method.
* pt.c: Remove the saved_trees global.
2021-04-01 Jason Merrill <>
PR c++/99583
PR c++/99584
* tree.c (cp_walk_subtrees) [FUNCTION_TYPE]: Walk into
2021-04-01 Iain Sandoe <>
* (INCLUDE_MAP): New; require map to be
included from system.h.
* (INCLUDE_MAP): Likewise.
2021-04-01 Jason Merrill <>
PR c++/98481
* mangle.c (write_expression): Adjust.
* class.c (find_abi_tags_r): Disable PR98481 fix for ABI v14.
(mark_abi_tags_r): Likewise.
2021-04-01 Nathan Sidwell <>
PR c++/99283
* (trees_out::decl_node): Adjust importedness reference
(module_state::intercluster_seed): New. Seed both imports and
inter-cluster references. Broken out of ...
(module_state::write_cluster): ... here. Call it.
2021-03-31 Jason Merrill <>
PR c++/99445
* tree.c (strip_typedefs): Handle TYPE_PACK_EXPANSION.
2021-03-31 Patrick Palka <>
PR c++/88115
* mangle.c (write_expression): Adjust the mangling of
2021-03-31 Patrick Palka <>
PR c++/99815
* pt.c (placeholder_type_constraint_dependent_p): Expand
argument packs to separate the first non-pack argument
from the rest.
2021-03-30 Nathan Sidwell <>
PR c++/99283
* (dumper::operator): Make less brittle.
(trees_out::core_bools): VAR_DECLs always have a context.
(trees_out::key_mergeable): Use same_type_p for asserting.
(trees_in::read_var_def): Propagate
2021-03-30 Jakub Jelinek <>
PR c++/99790
* cp-gimplify.c (cp_gimplify_expr): Handle PTRMEM_CST.
2021-03-26 Marek Polacek <>
PR c++/98352
* method.c (implicitly_declare_fn): Pass &raises to
2021-03-26 Nathan Sidwell <>
PR c++/99283
(SET_TYPE_TEMPLATE_INFO): Restore Alias template setting.
* decl.c (duplicate_decls): Remove template_decl module flag
* (merge_kind_name): Add alias tmpl spec as a thing.
(dumper::impl::nested_name): Adjust for template-decl module flag
(trees_in::assert_definition): Likewise.
(trees_in::install_entity): Likewise.
(trees_out::decl_value): Likewise. Remove alias template
separation of template and type_decl.
(trees_in::decl_value): Likewise.
(trees_out::key_mergeable): Likewise,
(trees_in::key_mergeable): Likewise.
(trees_out::decl_node): Adjust for template-decl module flag
(depset::hash::make_dependency): Likewise.
(get_originating_module, module_may_redeclare): Likewise.
(set_instantiating_module, set_defining_module): Likewise.
* name-lookup.c (name_lookup::search_adl): Likewise.
(do_pushdecl): Likewise.
* pt.c (build_template_decl): Likewise.
(lookup_template_class_1): Remove special alias_template handling
(tsubst_template_decl): Likewise.
2021-03-26 Jakub Jelinek <>
PR c++/99705
* tree.c (bot_manip): Remap artificial automatic temporaries mentioned
2021-03-25 Jakub Jelinek <>
PR c++/99672
* parser.c (cp_parser_postfix_expression): For calls, create
combined_loc and temporarily set input_location to it before
calling finish_call_expr.
2021-03-25 Marek Polacek <>
PR c++/94751
* call.c (build_over_call): Maybe call mark_used in case
deduce_inheriting_ctor fails and return error_mark_node.
* cp-tree.h (deduce_inheriting_ctor): Adjust declaration.
* method.c (deduce_inheriting_ctor): Return bool if the deduction
(implicitly_declare_fn): If raises is error_mark_node, call
synthesized_method_walk with diag being true.
2021-03-25 Jakub Jelinek <>
PR c++/99745
* decl2.c (grokbitfield): Diagnose bitfields containing bare parameter
packs and don't set DECL_BIT_FIELD_REPRESENTATIVE in that case.
2021-03-25 Marek Polacek <>
PR c++/99331
* call.c (build_converted_constant_expr_internal): Don't emit
-Wconversion warnings.
2021-03-25 Jakub Jelinek <>
PR c++/99565
* call.c (build_conditional_expr_1): Pass OEP_ADDRESS_OF_SAME_FIELD
to operand_equal_p.
* cvt.c (convert_to_void): Preserve location_t on COND_EXPR or
2021-03-23 Nathan Sidwell <>
PR c++/99283
* name-lookup.c (check_module_override): Set global or partition
DUP on the binding vector.
2021-03-23 Marek Polacek <>
PR c++/99318
* decl2.c (cp_warn_deprecated_use_scopes): Only call
cp_warn_deprecated_use when decl is a namespace, class, or enum.
2021-03-23 Nathan Sidwell <>
PR c++/99239
* decl.c (duplicate_decls): Remove assert about maybe-imported
artificial decls.
2021-03-23 Jakub Jelinek <>
PR c++/99650
* decl.c (cp_finish_decomp): Diagnose void initializers when
using tuple_element and get.
2021-03-22 Nathan Sidwell <>
PR c++/99480
* (depset::hash::make_dependency): Propagate flags for
partial specialization.
(module_may_redeclare): Handle partial specialization.
2021-03-22 Nathan Sidwell <>
PR c++/99425
* cp-tree.h (map_context_from, map_context_to): Delete.
(add_mergeable_specialization): Add is_alias parm.
* pt.c (add_mergeable_specialization): Add is_alias parm, add them.
* (map_context_from, map_context_to): Delete.
(trees_in::decl_value): Add specializations later, adjust call.
Drop useless alias lookup. Set duplicate fn parm context.
(check_mergeable_decl): Drop context mapping.
(trees_in::is_matching_decl): Likewise.
(trees_in::read_function_def): Drop parameter context adjustment
2021-03-22 Martin Liska <>
PR c++/99687
* (fini_modules): Call vec_free instead of delete.
2021-03-20 Jakub Jelinek <>
PR debug/99230
* cp-gimplify.c (cp_genericize_r) <case STATEMENT_LIST>: Remove
special code, instead call c_genericize_control_stmt.
2021-03-19 Jakub Jelinek <>
PR c++/99456
* constexpr.c (cxx_eval_constant_expression): For CONVERT_EXPR from
INDIRECT_TYPE_P to ARITHMETIC_TYPE_P, when !ctx->manifestly_const_eval
don't diagnose it, set *non_constant_p nor return t.
2021-03-19 Marek Polacek <>
PR c++/99500
* parser.c (cp_parser_requirement_parameter_list): Handle
2021-03-18 Marek Polacek <>
* pt.c (tsubst_copy_and_build) <case FLOAT_EXPR>: Remove.
2021-03-18 Marek Polacek <>
* pt.c (tsubst_copy_and_build): Add assert.
2021-03-18 Iain Sandoe <>
PR objc++/49070
* parser.c (cp_debug_parser): Add Objective-C++ message
state flag.
(cp_parser_nested_name_specifier_opt): Allow colon to
terminate an assignment-expression when parsing Objective-
C++ messages.
(cp_parser_objc_message_expression): Set and clear message
parsing state on entry and exit.
* parser.h (struct cp_parser): Add a context flag for
Objective-C++ message state.
2021-03-18 Martin Liska <>
PR c++/99617
* (struct var_nest_node): Init then_cl and else_cl
to NULL.
2021-03-17 Marek Polacek <>
PR c++/97973
* call.c (conv_unsafe_in_template_p): New.
(convert_like): Use it.
2021-03-17 Anthony Sharp <>
Jason Merrill <>
* semantics.c (get_class_access_diagnostic_decl): New
function that examines special cases when a parent
class causes a private access failure.
(enforce_access): Slightly modified to call function
2021-03-16 Jason Merrill <>
* tree.c (cp_tree_equal): Use real_identical.
2021-03-16 Jakub Jelinek <>
PR c++/99613
* decl.c (expand_static_init): For thread guards, call __cxa_atexit
before calling __cxa_guard_release rather than after it. Formatting
2021-03-16 Martin Liska <>
Jason Merrill <>
PR c++/99108
* call.c (get_function_version_dispatcher): Handle
* decl.c (maybe_version_functions): Likewise.
(maybe_mark_function_versioned): New.
* name-lookup.c (push_local_extern_decl_alias): No longer static.
* name-lookup.h (push_local_extern_decl_alias): Adjust.
2021-03-16 Nathan Sidwell <>
PR c++/99496
* (trees_out::decl_value): Adjust typedef streaming,
indicate whether it is a dependent alias.
(trees_in::decl_value): Likewise. Set as dependent alias, if it
is one.
2021-03-15 Iain Sandoe <>
PR c++/99047
* (expand_one_await_expression): If the
await_ready() expression is not a boolean then convert it
as required.
2021-03-15 Iain Sandoe <>
PR c++/98704
* (build_actor_fn): Make destroy index 1
correspond to the abnormal unhandled_exception() exit.
Substitute the proxy for the resume index.
(coro_rewrite_function_body): Arrange to reset the resume
index and make done = true for a rethrown exception from
unhandled_exception ().
(morph_fn_to_coro): Adjust calls to build_actor_fn and
2021-03-15 Iain Sandoe <>
PR c++/98480
* (replace_continue): Rewrite continue into
'goto label'.
(await_statement_walker): Handle await expressions in the
initializer, condition and iteration expressions of for
2021-03-15 Iain Sandoe <>
PR c++/96749
* (flatten_await_stmt): Allow for the case
where a target expression variable only has uses in the
second part of a compound expression.
(maybe_promote_temps): Avoid emiting empty statements.
2021-03-15 Tobias Burnus <>
PR c++/99509
* decl.c (cp_finish_decl): For 'omp declare target implicit' vars,
ensure that the varpool node is marked as offloadable.
2021-03-12 Nathan Sidwell <>
PR c++/99238
* (depset::hash::add_binding_entity): Assert not
(depset::add::add_specializations): Likewise.
* name-lookup.c (name_lookup::dedup): New.
(name_lookup::~name_lookup): Assert not deduping.
(name_lookup::restore_state): Likewise.
(name_lookup::add_overload): Replace outlined code with dedup
(name_lookup::add_value): Likewise.
(name_lookup::search_namespace_only): Likewise.
(name_lookup::adl_namespace_fns): Likewise.
(name_lookup::adl_class_fns): Likewise.
(name_lookup::search_adl): Likewise. Add clearing dedup call.
(name_lookup::search_qualified): Likewise.
(name_lookup::search_unqualified): Likewise.
2021-03-12 Jakub Jelinek <>
PR c++/99507
* call.c (build_over_call): For immediate evaluation of functions
that return references, undo convert_from_reference effects before
calling cxx_constant_value and call convert_from_reference
2021-03-11 Nathan Sidwell <>
PR c++/99248
* name-lookup.c (lookup_elaborated_type_1): Access slot not bind
when there's a binding vector.
* ptree.c (cxx_print_xnode): Lazy flags are no longer a thing.
2021-03-11 Nathan Sidwell <>
PR c++/99528
* (enum merge_kind): Delete MK_type_tmpl_spec,
(trees_in::decl_value): Adjust add_mergeable_specialization call.
(trees_out::get_merge_kind): Adjust detecting a partial template
(trees_out::key_mergeable): Adjust handling same.
(trees_in::key_mergeabvle): Likewise.
2021-03-10 Nathan Sidwell <>
PR c++/99423
* (post_load_processing): Assert not gcable.
(laxy_load_pendings): Extend no-gc region around
2021-03-10 Nathan Sidwell <>
PR c++/99508
* decl.c (make_rtl_for_nonlocal_decl): Propagate local-extern's
assembler name to the ns alias.
2021-03-09 Jakub Jelinek <>
PR c++/99459
* (build_co_await): Look through NOP_EXPRs in
build_special_member_call return value to find the CALL_EXPR.
2021-03-09 Nathan Sidwell <>
PR c++/99472
* parser.c (cp_parser_diagnose_invalid_type_name): Clarify
that C++20 does not yet imply modules.
2021-03-08 Nathan Sidwell <>
PR c++/99436
* name-lookup.c (get_cxx_dialect_name): Add cxx23.
2021-03-08 Nathan Sidwell <>
* lex.c (module_token_filter::resume): Ignore module-decls inside
* parser.c (cp_parser_module_declaration): Reject in header-unit.
2021-03-08 Nathan Sidwell <>
PR c++/99285
* cp-tree.h (match_mergeable_specialization)
(add_mergeable_specialization): Adjust parms.
* (trees_in::decl_value): Adjust
add_mergeable_specialization calls.
(trees_out::key_mergeable): Adjust match_mergeable_specialization
(specialization_add): Likewise.
* pt.c (match_mergeable_specialization): Do not insert.
(add_mergeable_specialization): Add to hash table here.
2021-03-06 Patrick Palka <>
Jakub Jelinek <>
PR c++/99287
* constexpr.c (cxx_eval_increment_expression): Pass lval when
evaluating the MODIFY_EXPR, and update 'mod' with the result of
this evaluation. Check *non_constant_p afterwards. For prefix
ops, just return 'mod'.
2021-03-06 Patrick Palka <>
Jakub Jelinek <>
PR c++/96330
* pt.c (tsubst_copy) <case TEMPLATE_ID_EXPR>: Rename local
variable 'fn' to 'tmpl'. Handle a variable template-id by
calling lookup_template_variable.
2021-03-06 Patrick Palka <>
PR c++/99365
* pt.c (unify) <case TEMPLATE_TYPE_PARM>: Pass targs as
outer_targs to do_auto_deduction.
(placeholder_type_constraint_dependent_p): Define.
(do_auto_deduction): When processing_template_decl != 0
and context is adc_unify and we have constraints, pretend the
constraints are satisfied instead of punting. Otherwise don't
punt unless placeholder_type_constraint_dependent_p holds.
Add some clarifying sanity checks. Add a hack to add missing
outermost template levels to outer_args before checking
satisfaction. Don't substitute outer_targs into type if it's
already been done.
2021-03-05 Marek Polacek <>
PR c++/99374
* call.c (standard_conversion): When converting pointers to
member, don't return NULL when the bases are equivalent but
2021-03-05 Marek Polacek <>
PR c++/99120
* name-lookup.c (check_local_shadow): Check if the type of decl
is non-null before checking TYPE_PTR*.
2021-03-05 Nathan Sidwell <>
PR c++/99245
* (module_state::write_cluster): Relax binding assert.
2021-03-05 Nathan Sidwell <>
PR c++/99377
* pt.c (instantiate_decl): Call set_instantiating_module.
2021-03-05 Iain Sandoe <>
PR c++/98118
* (build_co_await): Use type_build_ctor_call()
to determine cases when a CTOR needs to be built.
(flatten_await_stmt): Likewise.
(morph_fn_to_coro): Likewise.
2021-03-05 Iain Sandoe <>
PR c++/95616
* (coro_diagnose_throwing_fn): New helper.
(coro_diagnose_throwing_final_aw_expr): New helper.
(build_co_await): Diagnose throwing final await expression
(build_init_or_final_await): Diagnose a throwing promise
final_suspend() call.
2021-03-05 Iain Sandoe <>
PR c++/95615
* (struct param_info): Track parameter copies that need
(coro_get_frame_dtor): New helper function factored from build_actor().
(build_actor_fn): Use coro_get_frame_dtor().
(morph_fn_to_coro): Track parameters that need DTORs on exception,
likewise the frame promise and the return object. On exception, run the
DTORs for these, destroy the frame and then rethrow the exception.
2021-03-05 Nathan Sidwell <>
PR c++/99389
* pt.c (instantiate_class_template_1): Set instantiating module
2021-03-05 Tobias Burnus <>
PR c/99137
* parser.c (cp_parser_oacc_clause_async): Reject comma expressions.
2021-03-04 Jakub Jelinek <>
PR c++/88146
PR c++/99362
* cvt.c (convert_to_void): Revert 2019-10-17 changes. Clarify
2021-03-04 Nathan Sidwell <>
PR c++/99170
* (class uintset): Delete.
(typedef attached_map_t): A hash map.
(attached_table): Use attached_map_t. Adjust uses ...
(trees_out::decl_value, trees_in::decl_value): ... here ...
(trees_out::key_mergeable): ... here ...
(trees_in::key_mergeable): ... here ...
(maybe_attach_decl): ... here ...
(direct_import): ... and here.
2021-03-04 Nathan Sidwell <>
PR c++/99170
* cp-tree.h
* lex.c (cxx_dup_lang_specific_decl): Adjust for module_attached_p
* (class pending_key): New.
(default_hash_traits<pending_key>): New specialization.
(pending_map_t): New typedef.
(pending_table): Replace old table.
(trees_out::lang_decl_bools): Adjust.
(trees_in::lang_decl_bools): Adjust.
(trees_in::install_entity): Drop pending member and specialization
(find_pending_key): New.
(depset::hash::fiund_dependencies): Use it.
(pendset_lazy_load): Delete.
(module_state::write_cluster): Don't count pendings here. Bye
Duff's device-like thing.
(module_state::write_pendings): Reimplement.
(module_state::read_pendings): Reimplement.
(lazy_specializations_p): Delete.
(module_state::write): Adjust write_pendings call.
(lazy_load_pendings): New.
(lazy_load_specializations): Delete.
(lazy_load_members): Delete.
(init_modules): Adjust.
* name-lookup.c (maybe_lazily_declare): Call lazy_load_pendings
not lazy_load_members.
(note_pending_specializations): Delete.
(load_pending_specializations): Delete.
(note_pending_specializations): Delete.
(load_pending_specializations): Delete.
* pt.c (lookup_template_class_1): Call lazy_load_pendings not
(instantiate_template_class_1): Likewise.
(instantiate_decl): Call lazy_load_pendings.
* typeck.c (complete_type): Likewise.
2021-03-03 Nathan Sidwell <>
PR c++/99170
* (post_load_decls): New.
(lazy_snum, recursive_lazy): Move earlier.
(module_state::read_cluster): Push cloning onto post_load_decls.
(post_load_processing): New. Do the cloning here.
(module_state::read_inits): Call post_load_processing.
(module_state::read_language): Likewise.
(lazy_load_binding, lazy_load_specializations): Likewise
(lazy_load_members): Likewise
2021-03-03 Nathan Sidwell <>
PR c++/99170
* (trees_out::decl_value): Stream specialization keys
after decl.
(trees_in::decl_value): Stream them back and insert after
completing the decl.
(trees_out::key_mergeable): Drop some streaming here ...
(trees_in::key_mergeable): ... and here. Don't insert into
specialization tables.
2021-03-03 Patrick Palka <>
* (struct sat_info): Document the different
meanings of noisy() and diagnose_unsatisfaction_p() during
satisfaction and requires-expression evaluation.
(tsubst_valid_expression_requirement): Take a sat_info instead
of a subst_info. Perform the substitution quietly first. Fold
in error-replaying code from diagnose_valid_expression.
(tsubst_simple_requirement): Take a sat_info instead of a
(tsubst_type_requirement_1): New. Fold in error-replaying code
from diagnose_valid_type.
(tsubst_type_requirement): Use the above. Take a sat_info
instead of a subst_info.
(tsubst_compound_requirement): Likewise. Fold in
error-replaying code from diagnose_compound_requirement.
(tsubst_nested_requirement): Take a sat_info instead of a
subst_info. Fold in error-replaying code from
(tsubst_requirement): Take a sat_info instead of a subst_info.
(tsubst_requires_expr): Split into two versions, one that takes
a sat_info argument and another that takes a complain and
in_decl argument. Remove outdated documentation. Document the
effects of the sat_info argument. Don't short-circuit
processing of requirements when diagnosing unsatisfaction,
mirroring diagnose_requires_expr.
(satisfy_nondeclaration_constraint) <case REQUIRES_EXPR>: Remove
assert, and se the three-parameter version of tsubst_requires_expr.
(diagnose_trait_expr): Make static. Take a template argument
vector instead of a parameter mapping.
(diagnose_valid_expression): Remove.
(diagnose_valid_type): Remove.
(diagnose_simple_requirement): Remove.
(diagnose_compound_requirement): Remove.
(diagnose_type_requirement): Remove.
(diagnose_nested_requirement): Remove.
(diagnose_requirement): Remove.
(diagnose_requires_expr): Remove.
(diagnose_atomic_constraint): Take a sat_info instead of a
subst_info. Adjust call to diagnose_trait_expr. Call
tsubst_requires_expr instead of diagnose_requires_expr.
(diagnose_constraints): Remove special casing of REQUIRES_EXPR
and just always call constraint_satisfaction_value.
2021-03-03 Patrick Palka <>
* constexpr.c (cxx_eval_call_expression): Adjust call to
(cxx_eval_constant_expression) <case REQUIRES_EXPR>: Use
evaluate_requires_expression instead of
<case TEMPLATE_ID_EXPR>: Adjust call to evaluate_concept_check.
* (struct sat_info): Adjust comment about which
satisfaction entrypoints use noisy-unsat.
(normalize_template_requirements): Remove (and adjust callers
(normalize_nontemplate_requirements): Likewise.
(tsubst_nested_requirement): Use constraint_satisfaction_value
instead of satisfy_constraint_expression, which'll do the
noisy replaying of ill-formed quiet satisfaction for us.
(decl_satisfied_cache): Adjust comment.
(satisfy_constraint): Rename to ...
(satisfy_normalized_constraints): ... this.
(satisfy_associated_constraints): Remove (and make its
callers check for dependent arguments).
(satisfy_constraint_expression): Rename to ...
(satisfy_nondeclaration_constraints): ... this. Assert that
'args' is empty when 't' is a concept-id. Removing handling
bare constraint-expressions, and handle REQUIRES_EXPRs
specially. Adjust comment accordingly.
(satisfy_declaration_constraints): Assert in the two-parameter
version that 't' is not a TEMPLATE_DECL. Adjust following
removal of normalize_(non)?template_requirements and
(constraint_satisfaction_value): Combine the two- and
three-parameter versions in the natural way.
(constraints_satisfied_p): Combine the one- and two-parameter
versions in the natural way. Improve documentation.
(evaluate_requires_expr): Define.
(evaluate_concept_check): Remove 'complain' parameter. Use
constraint_satisfaction_value instead of
(diagnose_nested_requirement): Adjust following renaming of
(diagnose_constraints): Handle REQUIRES_EXPR by going through
diagnose_requires_expr directly instead of treating it as a
constraint-expression. Improve documentation.
* cp-gimplify.c (cp_genericize_r) <case CALL_EXPR>: Adjust call
to evaluate_concept_check.
<case REQUIRES_EXPR>: Use evaluate_requires_expr instead of
<case TEMPLATE_ID_EXPR>: Adjust call to evaluate_concept_check.
* cp-tree.h (evaluate_requires_expr): Declare.
(evaluate_concept_check): Remove tsubst_flag_t parameter.
(satisfy_constraint_expression): Remove declaration.
(constraints_satisfied_p): Remove one-parameter declaration.
Add a default argument to the two-parameter declaration.
* cvt.c (convert_to_void): Adjust call to
2021-03-03 Jakub Jelinek <>
PR c++/82959
* call.c (op_is_ordered): Handle TRUTH_ANDIF_EXPR, TRUTH_ORIF_EXPR
2021-03-03 Marek Polacek <>
PR c++/97034
PR c++/99009
* pt.c (build_deduction_guide): Use INNERMOST_TEMPLATE_ARGS.
(maybe_aggr_guide): Use the original template type where needed. In
a class member template, partially instantiate the result of
(do_class_deduction): Defer the deduction until the enclosing
scope is non-dependent.
2021-03-03 Jason Merrill <>
PR c++/95675
* call.c (build_temp): Wrap a CALL_EXPR in a TARGET_EXPR
if it didn't get one before.
2021-03-03 Nathan Sidwell <>
PR c++/99344
* (trees_out::decl_node): Small refactor.
(depset::hash::add_binding_entity): Return true on meeting an
import. Set namespace's import here.
(module_state:write_namespaces): Inform of purview too.
(module_state:read_namespaces): Adjust.
* name-lookup.c (implicitly_export_namespace): Delete.
(do_pushdecl): Don't call it.
(push_namespace): Likewise, set purview.
(add_imported_namespace): Reorder parms.
* name-lookup.h (add_imported_namespace): Alter param ordering.
2021-03-02 Martin Sebor <>
PR c++/99251
* class.c (build_base_path): Call build_if_nonnull.
* cp-tree.h (build_if_nonnull): Declare.
* rtti.c (ifnonnull): Rename...
(build_if_nonnull): this. Set no-warning bit on COND_EXPR.
(build_dynamic_cast_1): Adjust to name change.
2021-03-02 Patrick Palka <>
PR c++/96443
PR c++/96960
* (type_deducible_p): Don't substitute into the
constraints, and instead just pass 'args' to do_auto_deduction
as the outer template arguments.
(tsubst_parameter_mapping): Remove confused code for handling
placeholder type arguments.
(normalize_placeholder_type_constraint): Define.
(satisfy_constraint_expression): Use it to handle placeholder
'auto' types.
(PLACEHOLDER_TYPE_CONSTRAINTS): Redefine in terms of the above.
* pt.c (tsubst) <case TEMPLATE_TYPE_PARM>: Use
(make_constrained_placeholder_type): Set
(do_auto_deduction): Clarify comments about the outer_targs
parameter. Rework satisfaction of a placeholder type constraint
to pass in the complete set of template arguments directly to
(splice_late_return_type): Use PLACEHOLDER_TYPE_CONSTRAINTS_INFO
instead. Also rebuild the the constraint info on the new auto.
2021-03-02 Patrick Palka <>
* (build_parameter_mapping): Rely on the caller to
determine the in-scope template parameters.
(norm_info::norm_info): Delegate the tsubst_flags_t constructor
to the two-parameter constructor. In the two-parameter
constructor, fold in the definition of make_context, set
initial_parms appropriately, and don't set the now-removed
orig_decl member.
(norm_info::make_context): Remove, now that its only use is
inlined into the caller.
(norm_info::update_context): Adjust call to
build_parameter_mapping to pass in the relevant set of in-scope
template parameters.
(norm_info::ctx_parms): Define this member function.
(norm_info::context): Initialize to NULL_TREE.
(norm_info::orig_decl): Remove this data member.
(norm_info::initial_parms): Define this data member.
(normalize_atom): Adjust call to build_parameter_mapping to pass
in the relevant set of in-scope template parameters. Use
info.initial_parms instead of info.orig_decl.
(normalize_constraint_expression): Take a norm_info object
instead of a bool. Cache the result of normalization.
(tsubst_nested_requirement): Call satisfy_constraint_expression
instead of satisfy_constraint, so that we normalize on demand.
(satisfy_constraint_expression): Handle a NESTED_REQ argument.
Adjust call to normalize_constraint_expression.
(finish_nested_requirement): Set the TREE_TYPE of the NESTED_REQ
to current_template_parms.
(diagnose_nested_requirements): Go through
satisfy_constraint_expression, as with tsubst_nested_requirement.
2021-03-02 Patrick Palka <>
* (tsubst_parameter_mapping): Canonicalize the
arguments of a substituted TYPE_ARGUMENT_PACK even if we've
started with a TYPE_ARGUMENT_PACK.
(finish_requires_expr): Don't set DECL_CONTEXT and
CONSTRAINT_VAR_P on each of the introduced parameters here.
* parser.c (cp_parser_requirement_parameter_list): Instead set
these fields earlier, here.
* pt.c (do_auto_deduction): Canonicalize the result of
do_auto_deduction. Pass 'complain' to finish_decltype_type.
2021-03-02 Patrick Palka <>
* (tsubst_simple_requirement): Just return
boolean_true_node on success.
(tsubst_type_requirement): Likewise.
(tsubst_compound_requirement): Likewise.
(tsubst_nested_requirement): Likewise.
(tsubst_requirement_body): Remove.
(check_constaint_variables): Rename to ...
(check_constraint_variables): ... this.
(tsubst_constraint_variables): Adjust.
(tsubst_requires_expr): Fold tsubst_requirement_body into here.
2021-03-01 Nathan Sidwell <>
PR c++/99294
* class.c (fixup_type_variants): Propagate mode, precision,
alignment & emptiness.
* (trees_out::type_node): Use TYPE_ALIGN_RAW.
(trees_in::tree_node): Rematerialize alignment here.
2021-02-27 Jason Merrill <>
PR c++/90333
* parser.c (cp_parser_lambda_declarator_opt): Accept GNU attributes
between () and ->.
2021-02-26 Jakub Jelinek <>
* parser.c (cp_parser_lambda_declarator_opt): Implement
P1102R2 - Down with ()! Make ()s optional before lambda specifiers
for -std={c,gnu}++2b or with pedwarn in earlier versions.
2021-02-26 Jakub Jelinek <>
PR c++/95451
* lambda.c (is_lambda_ignored_entity): Before checking for
2021-02-26 Jason Merrill <>
PR c++/98810
* pt.c (tsubst_copy) [VIEW_CONVERT_EXPR]: Add const
to a class non-type template argument that needs it.
2021-02-26 Patrick Palka <>
PR c++/98990
* pt.c (splice_late_return_type): Rebuild the entire return type
if we have to adjust the level of an auto within.
(type_uses_auto): Adjust call to find_type_usage.
* type-utils.h (find_type_usage): Revert r10-6571 change that
made this function return a pointer to the auto node.
2021-02-25 Patrick Palka <>
PR c++/99213
PR c++/94521
* error.c (dump_scope): Pass TFF_NO_TEMPLATE_BINDINGS instead of
TFF_NO_FUNCTION_ARGUMENTS when dumping a function scope.
2021-02-25 Patrick Palka <>
PR c++/99103
* pt.c (is_spec_or_derived): Drop cv-qualifiers from 'etype'.
(maybe_aggr_guide): Fix order of arguments to is_spec_or_derived.
2021-02-25 Marek Polacek <>
DR 1312
PR c++/99176
* constexpr.c (is_std_construct_at): New overload.
(is_std_allocator_allocate): New overload.
(cxx_eval_call_expression): Use the new overloads.
(cxx_eval_constant_expression): Reject casting
from void * as per DR 1312. Don't check can_convert.
2021-02-25 Iain Sandoe <>
PR c++/97587
* (struct param_info): Track rvalue refs.
(morph_fn_to_coro): Track rvalue refs, and call the promise
CTOR with the frame copy of passed parms.
2021-02-25 Iain Sandoe <>
PR c++/95822
* (morph_fn_to_coro): Unconditionally remove any
set throwing_cleanup marker.
2021-02-25 Nathan Sidwell <>
PR c++/99166
* (module_state::inform_cmi_p): Renamed field.
(module_state::do_import): Adjust.
(init_modules, finish_module_processing): Likewise.
(handle_module_option): Likewise.
2021-02-25 Nathan Sidwell <>
PR c++/98318
* (module_client::open_module_client): Fix typo
of fd init.
2021-02-24 Nathan Sidwell <>
PR c++/98718
* (ool): New indirection vector.
(loc_spans::maybe_propagate): Location is not optional.
(loc_spans::open): Likewise. Assert monotonically advancing.
(module_for_ordinary_loc): Use ool indirection vector.
(module_state::write_prepare_maps): Do not count empty macro
expansions. Elide empty spans.
(module_state::write_macro_maps): Skip empty expansions.
(ool_cmp): New qsort comparator.
(module_state::write): Create and destroy ool vector.
(name_pending_imports): Fix dump push/pop.
(preprocess_module): Likewise. Add more dumping.
(preprocessed_module): Likewise.
2021-02-24 Iain Sandoe <>
PR c++/96251
* (coro_common_keyword_context_valid_p): Suppress
error reporting when instantiating for a constexpr.
2021-02-23 Nathan Sidwell <>
PR c++/99208
* decl.c (name_unnamed_type): Check DECL identity, not IDENTIFIER
2021-02-23 Patrick Palka <>
PR c++/95468
* pt.c (tsubst_copy_and_build) <case BASELINK>: New case, copied
over from tsubst_copy.
2021-02-23 Patrick Palka <>
* pt.c (instantiation_dependent_expression_p): Check
processing_template_decl before calling
2021-02-22 Nathan Sidwell <>
PR c++/99174
* (struct module_state): Add visited_p flag.
(name_pending_imports): Use it to avoid duplicate requests.
(preprocess_module): Don't read preprocessor state if we failed to
load a module's config.
2021-02-22 Nathan Sidwell <>
PR c++/99153
* decl.c (duplicate_decls): Move DECL_MODULE_IMPORT_P propagation
to common-path.
* (set_defining_module): Add assert.
2021-02-19 Nathan Sidwell <>
PR c++/98741
* (pending_imports): New.
(declare_module): Adjust test condition.
(name_pending_imports): New.
(preprocess_module): Reimplement using pending_imports.
(preprocessed_module): Move name-getting to name_pending_imports.
* name-lookup.c (append_imported_binding_slot): Assert module
ordering is increasing.
2021-02-19 Nathan Sidwell <>
* (note_cmis): New.
(struct module_state): Add inform_read_p bit.
(module_state::do_import): Inform of CMI location, if enabled.
(init_modules): Canonicalize note_cmis entries.
(handle_module_option): Handle -flang-info-module-read=FOO.
2021-02-19 Jason Merrill <>
PR c++/96926
* call.c (perfect_conversion_p): Limit rvalueness
test to reference bindings.
2021-02-19 Jason Merrill <>
PR c++/96926
* call.c (perfect_conversion_p): New.
(perfect_candidate_p): New.
(add_candidates): Ignore templates after a perfect non-template.
2021-02-18 Nathan Sidwell <>
PR c++/99023
* (canonicalize_header_name): Use
(maybe_translate_include): Fix note_includes comparison.
(init_modules): Fix note_includes string termination.
2021-02-18 Jakub Jelinek <>
PR c++/99132
* cp-gimplify.c (cp_genericize_r) <case CALL_EXPR>: Use
cp_get_callee_fndecl_nofold instead of cp_get_callee_fndecl to check
for immediate function calls.
2021-02-17 Nathan Sidwell <>
PR c++/99023
* (struct macro_export): Add GTY markers.
(macro_exports): Likewise, us a va_gc Vector.
2021-02-17 Jakub Jelinek <>
PR sanitizer/99106
* init.c (build_zero_init_1): For flexible array members just return
NULL_TREE instead of returning empty CONSTRUCTOR with non-complete
2021-02-17 Nathan Sidwell <>
PR c++/99116
* name-lookup.c (do_pushdecl): Don't peek under template_parm
bindings here ...
(set_identifier_type_value_with_scope): ... or here.
(do_pushtag): Only set_identifier_type_value_with_scope at
non-class template parm scope, and use parent scope.
2021-02-17 Nathan Sidwell <>
PR c++/99071
* name-lookup.c (maybe_record_mergeable_decl): Deref the correct
2021-02-17 Patrick Palka <>
PR debug/96997
PR c++/94034
* tree.c (build_aggr_init_expr): Revert r10-7718 change.
2021-02-12 Nathan Sidwell <>
* (module_state::write_cluster): Check bindings for
imported using-decls.
2021-02-12 Nathan Sidwell <>
PR c++/99040
* (trees_in::decl_value): Call add_module_namespace_decl
for new namespace-scope entities.
(module_state::read_cluster): Don't call add_module_decl here.
* name-lookup.h (add_module_decl): Rename to ...
(add_module_namespace_decl): ... this.
* name-lookup.c (newbinding_bookkeeping): Move into ...
(do_pushdecl): ... here. Its only remaining caller.
(add_module_decl): Rename to ...
(add_module_namespace_decl): ... here. Add checking-assert for
circularity. Don't call newbinding_bookkeeping, just extern_c
checking and incomplete var checking.
2021-02-12 Nathan Sidwell <>
PR c++/99039
PR c++/99040
* cp-tree.h (CPTI_GLOBAL_TYPE): Delete.
(global_type_node): Delete.
(get_type_value): Delete.
* name-lookup.h (identifier_type_value): Delete.
* name-lookup.c (check_module_override): Don't
(do_pushdecl): Nor here.
(identifier_type_value_1, identifier_type_value): Delete.
(set_identifier_type_value_with_scope): Only
SET_IDENTIFIER_TYPE_VALUE for local and class scopes.
(pushdecl_nanmespace_level): Remove shadow stack nadgering.
* call.c (check_dtor_name): Use lookup_name.
* decl.c (cxx_init_decl_processing): Drop global_type_node.
* decl2.c (cplus_decl_attributes): Don't SET_IDENTIFIER_TYPE_VALUE
* init.c (get_type_value): Delete.
* pt.c (instantiate_class_template_1): Don't call pushtag or
(tsubst): Assert never an identifier.
(dependent_type_p): Drop global_type_node assert.
* typeck.c (error_args_num): Don't use IDENTIFIER_HAS_TYPE_VALUE
to determine ctorness.
2021-02-12 Jakub Jelinek <>
PR c++/97742
* parser.c (cp_parser_requirement_seq): Stop iterating after reaching
2021-02-12 Jason Merrill <>
PR c++/97246
PR c++/94546
* pt.c (extract_fnparm_pack): Check DECL_PACK_P here.
(register_parameter_specializations): Not here.
2021-02-11 Marek Polacek <>
PR c++/95888
* pt.c (lookup_template_class_1): Pass tf_none to tsubst when looking
for the partial instantiation.
2021-02-11 Jakub Jelinek <>
PR c++/99033
* init.c (build_zero_init_1): Handle zero initialiation of
flexible array members like initialization of [0] arrays.
Use integer_minus_onep instead of comparison to integer_minus_one_node
and integer_zerop instead of comparison against size_zero_node.
Formatting fixes.
2021-02-11 Marek Polacek <>
PR c++/99063
* semantics.c (finish_do_stmt): Check for unexpanded parameter packs.
2021-02-11 Patrick Palka <>
PR c++/97582
* name-lookup.c (op_unqualified_lookup): Handle an ambiguous
lookup result by discarding it if the first element is a
class-scope declaration, otherwise return it.
(push_operator_bindings): Handle an ambiguous lookup result by
doing push_local_binding on each element in the list.
2021-02-11 Marek Polacek <>
* parser.c (cp_parser_selection_statement): Use vec_free.
2021-02-10 Jakub Jelinek <>
PR c++/98988
PR c++/99031
* constexpr.c: Include cgraph.h.
(cxx_eval_call_expression): Call varpool_node::finalize_decl on
heap artificial vars.
(cxx_eval_outermost_constant_expr): Remove varpool nodes for
heap artificial vars.
2021-02-10 Nathan Sidwell <>
PR c++/99030
* pt.c (tsubst_copy) [VAR_DECL]: For a DECL_LOCAL_DECL_P T is the
answer if there's no local specialization.
2021-02-09 Nathan Sidwell <>
PR c++/98944
* (module_state::is_rooted): Rename to ...
(module_state::has_location): ... here. Adjust callers.
(module_state::read_partitions): Adjust validity check.
Don't overwrite a known location.
2021-02-09 Jason Merrill <>
PR c++/96905
* pt.c (mark_decl_instantiated): Exit early if consteval.
2021-02-09 Jason Merrill <>
PR c++/98326
PR c++/20408
* cp-gimplify.c (simple_empty_class_p): Don't touch an invisiref
2021-02-09 Jason Merrill <>
PR c++/98994
PR c++/97566
* constexpr.c (cxx_eval_store_expression): Only skip empty fields in
2021-02-08 Nathan Sidwell <>
* decl.c (start_cleanup_fn): Push function into
2021-02-08 Nathan Sidwell <>
PR c++/98531
* cp-tree.h (push_abi_namespace, pop_abi_namespace): Declare.
* decl.c (push_abi_namespace, pop_abi_namespace): Moved
from rtti.c, add default namespace arg.
(check_redeclaration_exception_specification): Allow a lazy
builtin's eh spec to differ from an lready-declared user
(declare_global_var): Use push/pop_abi_namespace.
(get_atexit_node): Push the fndecl into a namespace.
* rtti.c (push_abi_namespace, pop_abi_namespace): Moved to
2021-02-08 Marek Polacek <>
* cp-tree.h (CLASSTYPE_TI_TEMPLATE): Fix typo.
2021-02-05 Marek Polacek <>
PR c++/98947
* call.c (build_conditional_expr_1): Don't call mark_lvalue_use
on arg2/arg3.
* expr.c (mark_use) <case MODIFY_EXPR>: Don't check read_p when
issuing the -Wvolatile warning. Only set TREE_THIS_VOLATILE if
a warning was emitted.
2021-02-05 Marek Polacek <>
PR c++/96462
* name-lookup.c (lookup_using_decl): Hoist the destructor check.
2021-02-05 Jakub Jelinek <>
PR c++/97878
* decl.c (check_array_initializer): For structured bindings, require
the array type to be complete.
2021-02-04 Jason Merrill <>
PR c++/98717
* (build_concept_check_arguments): Remove assert.
(build_concept_check): Allow empty args.
2021-02-04 Tom Greenslade (thomgree) <>
PR c++/90926
* call.c (can_convert_array): Extend to handle all valid aggregate
initializers of an array; including by string literals, not just by
(build_aggr_conv): Call can_convert_array more often, not just in
brace-init-list case.
* typeck2.c (array_string_literal_compatible_p): New function.
(digest_init_r): call array_string_literal_compatible_p
* cp-tree.h: (array_string_literal_compatible_p): Declare.
2021-02-04 Jason Merrill <>
PR c++/98802
* pt.c (do_class_deduction): No aggregate guide if any_dguides_p.
2021-02-04 Jason Merrill <>
PR c++/95192
* pt.c (tsubst_attribute): Handle error.
(apply_late_template_attributes): Return false on error.
(tsubst_function_decl): Check its return value.
(tsubst_decl): Likewise.
(push_template_decl): Assert current_template_parms.
(tsubst_template_decl): Set current_template_parms.
2021-02-03 Marek Polacek <>
PR c++/98951
* call.c (struct z_candidate): Mark rewritten and reversed as const.
(struct NonPublicField): Mark operator() as const.
(struct NonTrivialField): Likewise.
2021-02-03 Jason Merrill <>
PR c++/98926
PR c++/98570
* pt.c (spec_hasher::equal): Set processing_template_decl.
* (check-g++-strict-gc): Add --param
2021-02-03 Marek Polacek <>
PR c++/98899
* parser.c (cp_parser_class_specifier_1): Use any possible
(cp_parser_save_noexcept): Initialize DEFPARSE_INSTANTIATIONS.
* pt.c (tsubst_exception_specification): Stash new_specs into
* tree.c (fixup_deferred_exception_variants): Use
2021-02-02 Jason Merrill <>
PR c++/98929
PR c++/96199
* error.c (dump_expr): Ignore dummy object.
* pt.c (tsubst_baselink): Handle dependent scope.
2021-02-01 Patrick Palka <>
PR c++/98295
* constexpr.c (cxx_eval_array_reference): Also set
new_ctx.object when setting new_ctx.ctor.
2021-02-01 Marek Polacek <>
PR c++/98355
* parser.c (cp_parser_has_attribute_expression): Use
uses_template_parms instead of type_dependent_expression_p.
2021-02-01 Jason Merrill <>
PR c++/98570
* cp-tree.h: Declare it.
* pt.c (comparing_dependent_aliases): New flag.
(template_args_equal, spec_hasher::equal): Set it.
(dependent_alias_template_spec_p): Assert that we don't
get non-types other than error_mark_node.
(instantiate_alias_template): SET_TYPE_STRUCTURAL_EQUALITY
on complex alias specializations. Set TYPE_DEPENDENT_P here.
(tsubst_decl): Not here.
* (module_state::read_cluster): Set
comparing_dependent_aliases instead of
* tree.c (cp_tree_equal): Remove comparing_specializations
module handling.
* typeck.c (structural_comptypes): Adjust.
(comptypes): Remove comparing_specializations handling.
2021-01-29 Nathan Sidwell <>
PR c++/98843
* (module_state_config): Add num_entities field.
(module_state::read_entities): The entity_ary span is
already allocated.
(module_state::write_config): Write num_entities.
(module_state::read_config): Read num_entities.
(module_state::write): Set config's num_entities.
(module_state::read_initial): Allocate the entity ary
span here.
(module_state::read_language): Do not set entity_lwm
2021-01-29 Marek Polacek <>
PR c++/96137
* parser.c (cp_parser_class_name): If parser->scope is
error_mark_node, return it, otherwise continue.
2021-01-28 Jakub Jelinek <>
PR c++/98841
* typeck.c (build_x_indirect_ref): For *this, return current_class_ref.
2021-01-28 Jakub Jelinek <>
PR c++/33661
PR c++/98847
* decl.c (cp_finish_decl): For register vars with asmspec in templates
call set_user_assembler_name and set DECL_HARD_REGISTER.
* pt.c (tsubst_expr): When instantiating DECL_HARD_REGISTER vars,
pass asmspec_tree to cp_finish_decl.
2021-01-28 Nathan Sidwell <>
PR c++/98770
* (trees_out::decl_value): Swap is_typedef & TYPE_NAME
check order.
(trees_in::decl_value): Do typedef frobbing only when installing
a new typedef, adjust is_matching_decl call. Swap is_typedef
& TYPE_NAME check.
(trees_in::is_matching_decl): Add is_typedef parm. Adjust variable
names and deal with typedef checking.
2021-01-27 Jason Merrill <>
PR c++/97874
* name-lookup.c (lookup_using_decl): Clean up handling
of dependency and inherited constructors.
(finish_nonmember_using_decl): Handle DECL_DEPENDENT_P.
* pt.c (tsubst_expr): Handle DECL_DEPENDENT_P.
2021-01-26 Jason Merrill <>
PR c++/97474
* call.c (type_passed_as): Don't mark invisiref restrict.
2021-01-26 Jason Merrill <>
PR c++/97566
PR c++/98463
* class.c (layout_class_type): An empty field gets size 0.
(is_empty_field): New.
(check_bases): Check it.
* cp-tree.h (is_empty_field): Declare it.
* constexpr.c (cxx_eval_store_expression): Check it.
(cx_check_missing_mem_inits): Likewise.
* init.c (perform_member_init): Likewise.
* typeck2.c (process_init_constructor_record): Likewise.
2021-01-25 Martin Sebor <>
PR c++/98646
* cvt.c (cp_fold_convert): Propagate TREE_NO_WARNING.
2021-01-25 Jason Merrill <>
PR c++/98463
* constexpr.c (get_or_insert_ctor_field): Add check.
(cxx_eval_store_expression): Handle discontinuity of refs.
2021-01-23 Anthony Sharp <>
* call.c (complain_about_access): Altered function.
* cp-tree.h (complain_about_access): Changed parameters of function.
(get_parent_with_private_access): Declared new function.
* search.c (get_parent_with_private_access): Defined new function.
* semantics.c (enforce_access): Modified function.
* typeck.c (complain_about_unrecognized_member): Updated function
arguments in complain_about_access.
2021-01-23 Patrick Palka <>
PR c++/97399
* cp-tree.h (shared_member_p): Adjust declaration.
* parser.c (cp_parser_init_declarator): If the storage class
specifier is sc_static, pass true for static_p to
(cp_parser_direct_declarator): Don't do inject_this_parm when
the declarator is a friend.
* search.c (shared_member_p): Change return type to bool and
adjust function body accordingly. Return false for a dependent
USING_DECL instead of aborting.
* semantics.c (finish_qualified_id_expr): Rely on shared_member_p
even when type-dependent.
2021-01-22 Marek Polacek <>
PR c++/96623
* parser.c (inject_parm_decls): Remove a redundant assignment.
(cp_parser_class_specifier_1): Clear current_class_{ptr,ref}
before calling inject_parm_decls.
2021-01-22 Jason Merrill <>
PR c++/98744
* call.c (make_base_init_ok): Use DECL_HAS_VTT_PARM_P.
2021-01-22 Jakub Jelinek <>
PR sanitizer/95693
* init.c (build_zero_init_1): Revert the 2018-03-06 change to
return build_zero_cst for reference types.
* typeck2.c (process_init_constructor_record): Instead call
build_zero_cst here during error recovery instead of build_zero_init.
2021-01-22 Marek Polacek <>
PR c++/98545
* mangle.c (write_member_name): Emit abi_warn_or_compat_version_crosses
warnings regardless of abi_version_at_least.
(write_expression): When the expression is a dependent name
and an operator name, write "on" before writing its name.
2021-01-22 Marek Polacek <>
PR c++/97966
* pt.c (instantiate_class_template_1): Instantiate members
marked with attribute used only after we're done instantiating
the class.
2021-01-21 Patrick Palka <>
PR c++/71879
* semantics.c (finish_decltype_type): Set up a cp_unevaluated
sentinel at the start of the function. Remove a now-redundant
manual adjustment of cp_unevaluated_operand.
2021-01-21 Nathan Sidwell <>
PR c++/98624
* (depset::hash::find_dependencies): Add
module arg.
(trees_out::core_vals): Check state before calling
(sort_cluster, module_state::write): Adjust
find_dependencies call.
2021-01-21 Jakub Jelinek <>
PR c++/98672
* constexpr.c (check_for_return_continue_data): Add break_stmt member.
(check_for_return_continue): Also look for BREAK_STMT. Handle
SWITCH_STMT by ignoring break_stmt from its body.
(potential_constant_expression_1) <case FOR_STMT>,
<case WHILE_STMT>: If the condition isn't constant true, check if
the loop body can contain a return stmt.
<case SWITCH_STMT>: Adjust check_for_return_continue_data initializer.
<case IF_STMT>: If recursion with tf_none is successful,
merge *jump_target from the branches - returns with highest priority,
breaks or continues lower. If then branch is potentially constant and
doesn't return, check the else branch if it could return, break or
2021-01-21 Nathan Sidwell <>
PR c++/98530
* name-lookup.c (lookup_class_binding): Rearrange a stat-hack.
2021-01-20 Nathan Sidwell <>
* (bytes_in::i, bytes_in::wi): Avoid left shift of
signed type.
2021-01-20 Patrick Palka <>
PR c++/95434
* pt.c (tsubst) <case TEMPLATE_TYPE_PARM>: If tsubsting
2021-01-20 Patrick Palka <>
PR c++/82613
* parser.c (cp_parser_class_head): Defer access checking when
parsing the base-clause until all bases are seen and attached
to the class type.
* pt.c (instantiate_class_template): Likewise when substituting
into dependent bases.
2021-01-20 Jakub Jelinek <>
PR c++/98742
* semantics.c (finish_omp_clauses) <case OMP_CLAUSE_DETACH>: If
error_operand_p, remove clause without further checking. Check
2021-01-19 Marek Polacek <>
PR c++/98659
* pt.c (maybe_instantiate_noexcept): Return false if FN is
2021-01-19 Marek Polacek <>
PR c++/98687
* name-lookup.c (push_using_decl_bindings): New, broken out of...
* name-lookup.h (push_using_decl_bindings): Update declaration.
* pt.c (tsubst_expr): Update the call to push_using_decl_bindings.