blob: 82629ef3a59d4dae914465a8df05b13e3a55ce24 [file] [log] [blame]
2022-10-28 Marek Polacek <>
* (maybe_warn_dangling_reference): Enable the warning in
system headers if the decl isn't in a system header.
2022-10-28 Jason Merrill <>
* (grokdeclarator): Call decl_attributes before do_friend.
2022-10-28 Jakub Jelinek <>
* (cp_parser_omp_all_clauses): Allow optional comma
before the first clause even in pragma syntax.
(cp_parser_omp_allocate, cp_parser_omp_atomic, cp_parser_omp_depobj,
cp_parser_omp_flush, cp_parser_omp_scan_loop_body,
cp_parser_omp_ordered, cp_parser_omp_assumption_clauses,
cp_finish_omp_declare_variant, cp_parser_omp_declare_target,
cp_parser_omp_declare_reduction_exprs, cp_parser_omp_requires,
cp_parser_omp_error): Likewise.
2022-10-28 Joseph Myers <>
PR c/61469
Remove. Moved to c-common.h.
2022-10-27 Jakub Jelinek <>
PR c++/107379
* (push_namespace): Call find_namespace_slot again
after pushdecl as the hash table might be expanded during pushdecl.
2022-10-27 Nathan Sidwell <>
* (write_closure_template_head): New.
(write_closure_type_name): Call it.
2022-10-27 Jakub Jelinek <>
PR c++/107382
PR c++/107383
* (cp_build_binary_op): Don't compute semantic_result_type
if result_type is NULL.
2022-10-26 Marek Polacek <>
PR c++/106393
* (expr_represents_temporary_p): New, factored out of...
(conv_binds_ref_to_temporary): Don't return false just
because a ck_base is missing. Use expr_represents_temporary_p.
(do_warn_dangling_reference): New.
(maybe_warn_dangling_reference): New.
(extend_ref_init_temps): Call maybe_warn_dangling_reference.
* cp-tree.h: Adjust comment.
* (check_return_expr): Suppress -Wdangling-reference
2022-10-25 Nathan Sidwell <>
* (synthesize_implicit_template_parm): Fix thinko about
mark the new parm DECL_VIRTUAL_P. Avoid unneccessary tree_last call.
2022-10-25 Patrick Palka <>
* (resolve_function_concept_overload): Explicitly
pass complain=tf_none to coerce_template_parms.
(resolve_concept_check): Likewise.
(normalize_concept_check): Likewise.
* cp-tree.h (coerce_template_parms): Declare the main overload
and default its last parameter to true. Remove wrapper overloads.
* (determine_specialization): Adjust calls to
coerce_template_parms and coerce_innermost_template_parms after
removing their last parameter.
(coerce_template_args_for_ttp): Likewise.
(coerce_ttp_args_for_tta): Likewise.
(coerce_template_template_parms): Likewise.
(coerce_template_parms): Remove use_default_args parameter and
adjust function comment. Document default argument. Remove
wrapper overloads. No longer static.
(coerce_innermost_template_parms): Remove use_default_args
parameter. Default require_all_args to true.
(lookup_template_class): As with determine_specialization.
(finish_template_variable): Likewise.
(tsubst_decl): Likewise.
(instantiate_alias_template): Likewise.
(fn_type_unification): Likewise.
(resolve_overloaded_unification): Likewise.
(resolve_nondeduced_context): Likewise.
(get_partial_spec_bindings): Likewise.
2022-10-25 Jason Merrill <>
* (find_failing_clause_r): Re-add the call to
2022-10-25 Patrick Palka <>
PR c++/106848
PR c++/102600
* (trees_out::core_vals): Stream TYPE_MAX_VALUE and
(trees_in::core_vals): Likewise.
(trees_out::write_enum_def): Don't stream them here.
(trees_in::read_enum_def): Likewise.
2022-10-25 Jason Merrill <>
* (class constexpr_global_ctx): Add modifiable field,
get_value, get_value_ptr, put_value, remove_value, flush_modifiable
member functions.
(class modifiable_tracker): New.
(cxx_eval_internal_function): Use it.
(diagnose_failing_condition): Strip CLEANUP_POINT_EXPR.
2022-10-25 Jason Merrill <>
* (fold_operand): New function.
(find_failing_clause_r): Add const.
(find_failing_clause): Add const.
(diagnose_failing_condition): Add ctx parameter.
(cxx_eval_internal_function): Pass it.
* (diagnose_failing_condition): Move to
* cp-tree.h: Adjust.
2022-10-24 Jason Merrill <>
* (fold_builtin_source_location)
* (register_all_pairs): Simplify calls to
(build_string_from_id): Remove.
2022-10-24 Marek Polacek <>
PR c++/107276
* (treat_lvalue_as_rvalue_p): Check the return value of move.
2022-10-24 Jakub Jelinek <>
PR c++/107358
* (cp_build_binary_op): Pass operands before excess precision
promotions to scalar_to_vector call.
2022-10-24 Jakub Jelinek <>
PR c++/105774
* (cxx_eval_increment_expression): For signed types
that promote to int, evaluate PLUS_EXPR or MINUS_EXPR in int type.
2022-10-24 Arsen Arsenović <>
* cp-tree.h (DECL_MAIN_P): Move most logic, besides the hosted
check, from here...
(DECL_MAIN_ANY_P): ... to here, so that it can be reused ...
(DECL_MAIN_FREESTANDING_P): ... here, with an additional
constraint on (hosted OR return type == int)
* (finish_function): Use DECL_MAIN_FREESTANDING_P
instead of DECL_MAIN_P, to loosen the hosted requirement, but
check noreturn, before adding implicit returns.
2022-10-21 Jakub Jelinek <>
PR c++/107295
* (reduced_constant_expression_p) <case CONSTRUCTOR>:
Return false for VECTOR_TYPE CONSTRUCTORs even without
(cxx_eval_bare_aggregate): If constant but !changed, fold before
(cxx_eval_constant_expression) <case CONSTRUCTOR>: Don't fold
2022-10-21 Jakub Jelinek <>
PR c++/106863
* (finish_compound_literal): For void{}, if
processing_template_decl return a COMPOUND_LITERAL_P
CONSTRUCTOR rather than void_node.
2022-10-20 Patrick Palka <>
* (lookup_and_finish_template_variable): Don't
instantiate if the template's scope is dependent.
(tsubst_copy) <case TEMPLATE_DECL>: Pass entering_scope=true
when substituting the class scope.
2022-10-20 Patrick Palka <>
PR c++/102963
* (node_template_info): Handle CONCEPT_DECL.
2022-10-20 Jonathan Wakely <>
Ulrich Drepper <>
* Add rules to generate std-name-hint.gperf. Adjust
rule to generate std-name-hint.h to allow chain rule.
* std-name-hint.h: Regenerated.
* std-name-hint.gperf: This file is now generated.
* cxxapi-data.csv: New file. CSV file with C++ API data.
* New file. Generate std-name-hint.gperf
and module export source (in future).
2022-10-19 Marek Polacek <>
PR c++/85043
* (maybe_warn_about_useless_cast): Don't warn when
a glvalue is cast to a non-reference type.
2022-10-18 Patrick Palka <>
PR c++/105045
* (trees_out::tpl_parms_fini): Don't assume default
template arguments must be trailing.
(trees_in::tpl_parms_fini): Likewise.
2022-10-18 Jakub Jelinek <>
PR c++/106654
* cp-tree.h (build_assume_call): Declare.
* (cp_parser_omp_assumption_clauses): Use build_assume_call.
* (build_assume_call): New function.
(process_stmt_assume_attribute): Use build_assume_call.
* (tsubst_copy_and_build): Likewise.
2022-10-17 Patrick Palka <>
PR c++/101449
* (trees_out::write_function_def): Stream the
parms and result of the constexpr_fundef entry.
(trees_in::read_function_def): Likewise.
2022-10-14 Patrick Palka <>
PR c++/106304
* (cxx_dynamic_cast_fn_p): Check for abi_node
instead of global_namespace.
* (build_dynamic_cast_1): Set DECL_CONTEXT and
DECL_SOURCE_LOCATION when building dynamic_cast_node. Push
it into the namespace.
2022-10-14 Jakub Jelinek <>
* cp-tree.h (extended_float_type_p): Return true for
* (cp_compare_floating_point_conversion_ranks): Set
extended{1,2} if mv{1,2} is bfloat16_type_node. Adjust comment.
2022-10-14 Jakub Jelinek <>
PR c/82071
PR c/87390
PR c++/107097
* cp-tree.h (cp_ep_convert_and_check): Remove.
* (cp_ep_convert_and_check): Remove.
* (build_conditional_expr): Use excess precision for ?: with
one arm floating and another integral. Don't convert first to
semantic result type from integral types.
(convert_like_internal): Don't call cp_ep_convert_and_check, instead
just strip EXCESS_PRECISION_EXPR before calling cp_convert_and_check
or cp_convert.
* (cp_build_binary_op): Set may_need_excess_precision
for comparisons or SPACESHIP_EXPR with at least one operand integral.
Don't compute semantic_result_type if build_type is non-NULL. Call
cp_convert_and_check instead of cp_ep_convert_and_check.
2022-10-14 Jakub Jelinek <>
PR middle-end/323
PR c++/107097
* (cp_parser_primary_expression): Handle
* (cp_ep_convert_and_check): New function.
* (build_conditional_expr): Add excess precision support.
When type_after_usual_arithmetic_conversions returns error_mark_node,
use gcc_checking_assert that it is because of uncomparable floating
point ranks instead of checking all those conditions and make it
work also with complex types.
(convert_like_internal): Likewise. Add NESTED_P argument, pass true
to recursive calls to convert_like.
(convert_like): Add NESTED_P argument, pass it through to
convert_like_internal. For other overload pass false to it.
(convert_like_with_context): Pass false to NESTED_P.
(convert_arg_to_ellipsis): Add excess precision support.
(magic_varargs_p): For __builtin_is{finite,inf,inf_sign,nan,normal}
and __builtin_fpclassify return 2 instead of 1, document what it
(build_over_call): Don't handle former magic 2 which is no longer
used, instead for magic 1 remove EXCESS_PRECISION_EXPR.
(perform_direct_initialization_if_possible): Pass false to NESTED_P
convert_like argument.
* (cxx_eval_constant_expression): Handle
(potential_constant_expression_1): Likewise.
* (tsubst_copy, tsubst_copy_and_build): Likewise.
* cp-tree.h (cp_ep_convert_and_check): Declare.
* (cp_fold): Handle EXCESS_PRECISION_EXPR.
* (cp_common_type): For COMPLEX_TYPEs, return error_mark_node
if recursive call returned it.
(convert_arguments): For magic 1 remove EXCESS_PRECISION_EXPR.
(cp_build_binary_op): Add excess precision support. When
cp_common_type returns error_mark_node, use gcc_checking_assert that
it is because of uncomparable floating point ranks instead of checking
all those conditions and make it work also with complex types.
(cp_build_unary_op): Likewise.
(cp_build_compound_expr): Likewise.
(build_static_cast_1): Remove EXCESS_PRECISION_EXPR.
2022-10-13 Jason Merrill <>
* cp-tree.h: Fix whitespace.
* parser.h: Fix whitespace.
* Fix whitespace.
* Fix whitespace.
* Fix whitespace.
2022-10-13 Martin Liska <>
* (vtv_generate_init_routine): Emit
an artificial variable that would be put into .preinit_array
2022-10-13 Marek Polacek <>
PR c++/106925
* (maybe_splice_retval_cleanup): Check current_function_decl.
Make the bool const.
2022-10-12 Marek Polacek <>
* (standard_conversion): Remove LOOKUP_PREFER_RVALUE code.
(reference_binding): Honor clk_implicit_rval even pre-C++20.
(implicit_conversion_1): Remove LOOKUP_PREFER_RVALUE code.
(build_user_type_conversion_1): Likewise.
(convert_like_internal): Likewise.
(build_over_call): Likewise.
* cp-tree.h (LOOKUP_PREFER_RVALUE): Remove.
(LOOKUP_NO_NARROWING): Adjust definition.
* (build_throw): Don't perform two overload resolutions.
* (maybe_warn_pessimizing_move): Don't use
(check_return_expr): Don't perform two overload resolutions.
2022-10-12 Jason Merrill <>
DR 2631
* cp-tree.h (source_location_current_p): Remove.
* name-lookup.h (struct cp_binding_level): Remove
* (in_immediate_context): All default args
and DMI are potentially immediate context.
(immediate_invocation_p): Don't treat source_location specially.
(struct in_consteval_if_p_temp_override): Move to cp-tree.h.
* (get_nth_callarg): Move to cp-tree.h.
* (cp_fold_r): Don't fold consteval.
* (begin_scope): Don't set immediate_fn_ctx_p.
* (cp_parser_lambda_declarator_opt): Likewise.
(cp_parser_direct_declarator): Likewise.
* (tsubst_default_argument): Open sk_function_parms level.
* (source_location_current_p): Remove.
(bot_replace): Fold consteval here.
(break_out_target_exprs): Handle errors.
2022-10-11 Patrick Palka <>
PR c++/100134
* (tsubst_friend_function): Propagate DECL_MODULE_PURVIEW_P
from the introduced namespace-scope function to the namespace.
2022-10-11 Patrick Palka <>
PR c++/99377
* (lazy_load_binding): Clear processing_template_decl.
(lazy_load_pendings): Likewise.
2022-10-10 Nathan Sidwell <>
* (write_prefix): Add VAR_DECL & FIELD_DECL to
substitution table under abi=18. Note possible mismatch.
2022-10-10 Marek Polacek <>
PR c++/106937
* Include "attribs.h".
(dump_type_prefix): Print only GNU attributes here.
(dump_type_suffix): Print standard attributes here.
2022-10-08 Jason Merrill <>
* cp-tree.h (TARGET_EXPR_ELIDING_P): New.
(unsafe_copy_elision_p, set_target_expr_eliding)
(cp_build_init_expr): Declare.
* (unsafe_copy_elision_p): No longer static.
(build_over_call, build_special_member_call)
(build_new_method_call): Use cp_build_init_expr.
* (expand_one_await_expression)
(build_actor_fn, flatten_await_stmt, handle_nested_conditionals)
(await_statement_walker, morph_fn_to_coro): Use cp_build_init_expr.
* (cp_gimplify_init_expr)
(cp_gimplify_expr): Check TARGET_EXPR_ELIDING_P.
(cp_fold_r): Propagate it.
(cp_fold): Use cp_build_init_expr.
* (check_initializer): Use cp_build_init_expr.
* (build_throw): Use cp_build_init_expr.
* (get_nsdmi): Call set_target_expr_eliding.
(perform_member_init, expand_default_init, expand_aggr_init_1)
(build_new_1, build_vec_init): Use cp_build_init_expr.
* (do_build_copy_constructor): Use cp_build_init_expr.
* (simplify_aggr_init_expr, finalize_nrv_r)
(finish_omp_reduction_clause): Use cp_build_init_expr.
* (build_target_expr): Call set_target_expr_eliding.
(bot_manip): Copy TARGET_EXPR_ELIDING_P.
* (cp_build_modify_expr): Call set_target_expr_eliding.
(check_return_expr): Use cp_build_modify_expr.
* (split_nonconstant_init_1)
(split_nonconstant_init): Use cp_build_init_expr.
(massage_init_elt): Call set_target_expr_eliding.
(process_init_constructor_record): Clear TARGET_EXPR_ELIDING_P on
unsafe copy elision.
(set_target_expr_eliding, cp_build_init_expr): New.
2022-10-07 Marek Polacek <>
PR c++/107085
* (conv_binds_ref_to_temporary): New.
(ref_conv_binds_directly): Rename to...
(ref_conv_binds_to_temporary): ...this. Use
* cp-tree.h (ref_conv_binds_directly): Rename to...
(ref_conv_binds_to_temporary): ...this.
* (ref_xes_from_temporary): Use ref_conv_binds_to_temporary.
* (warn_for_range_copy): Likewise.
2022-10-07 Qing Zhao <>
* (trees_out::core_bools): Stream out new bit
(trees_in::core_bools): Stream in new bit decl_not_flexarray.
2022-10-07 Patrick Palka <>
* (trees_out::mark_class_def): Guard against
2022-10-07 Jason Merrill <>
* (expand_default_init): Also push the INIT_EXPR inside a
2022-10-07 Patrick Palka <>
PR c++/104433
* (trees_out::core_bools): Don't override
DECL_EXTERNAL to true for static variables from an inline
2022-10-07 Martin Liska <>
* (enum module_state_counts): Use array size.
* (class namespace_limit_reached): Likewise.
(class module_state): Move up in the file.
2022-10-07 Jakub Jelinek <>
* (cp_parser_check_std_attribute): Only do checks if
attribute is a standard attribute or in gnu namespace and only
lookup other attributes in those namespaces.
* (lookup_hotness_attribute): Adjust function comment.
Only return true for standard attribute or gnu namespace attribute.
(remove_hotness_attribute): Only remove hotness attributes when
they are standard or in gnu namespace, implement it in a single
loop rather than former 4 now 8 remove_attribute calls.
2022-10-06 Jason Merrill <>
* (expand_one_await_expression): Change conversion
* (cp_genericize_r) [CONVERT_EXPR]: Add assert.
2022-10-06 Joseph Myers <>
* (init_reswords): Handle D_EXT11.
2022-10-06 Patrick Palka <>
* (optimize_specialization_lookup_p): Remove.
(retrieve_specialization): Assume the above returns false
and simplify accordingly.
(register_specialization): Likewise.
2022-10-06 Jakub Jelinek <>
* (cp_parser_omp_assumption_clauses): Emit IFN_ASSUME
call for holds clause on assume construct.
2022-10-06 Jakub Jelinek <>
PR c++/106654
* cp-tree.h (process_stmt_assume_attribute): Implement C++23
P1774R8 - Portable assumptions. Declare.
(diagnose_failing_condition): Declare.
(find_failing_clause): Likewise.
* (assume_attr): New enumerator.
(cp_parser_parenthesized_expression_list): Handle assume_attr.
Remove identifier variable, for id_attr push the identifier into
expression_list right away instead of inserting it before all the
others at the end.
(cp_parser_conditional_expression): New function.
(cp_parser_constant_expression): Use it.
(cp_parser_statement): Handle assume attribute.
(cp_parser_expression_statement): Likewise.
(cp_parser_gnu_attribute_list): Use assume_attr for assume
(cp_parser_std_attribute): Likewise. Handle standard assume
attribute like gnu::assume.
* (process_stmt_assume_attribute): New function.
* Include fold-const.h.
(find_failing_clause_r, find_failing_clause): New functions,
moved from with ctx argument added and if non-NULL,
call cxx_eval_constant_expression rather than fold_non_dependent_expr.
(cxx_eval_internal_function): Handle IFN_ASSUME.
(potential_constant_expression_1): Likewise.
* (tsubst_copy_and_build): Likewise.
* (diagnose_failing_condition): New function.
(find_failing_clause_r, find_failing_clause): Moved to
(finish_static_assert): Use it. Add auto_diagnostic_group.
2022-10-05 Jason Merrill <>
* (lvalue_kind) [VIEW_CONVERT_EXPR]: Change prvalue to
2022-10-04 Jason Merrill <>
PR c++/107154
* (cp_genericize_init_expr): Use iloc_sentinel.
(cp_genericize_target_expr): Likewise.
2022-10-04 Patrick Palka <>
PR c++/107136
* (CP_PLUGIN_HEADERS): Add cp-trait.def.
2022-10-04 Jakub Jelinek <>
* cp-tree.h (struct omp_declare_target_attr): Rename to ...
(cp_omp_declare_target_attr): ... this. Add device_type member.
(omp_begin_assumes_data): Rename to ...
(cp_omp_begin_assumes_data): ... this.
(struct saved_scope): Change types of omp_declare_target_attribute
and omp_begin_assumes.
* (cp_parser_omp_clause_device_type): Uncomment
check_no_duplicate_clause call.
(cp_parser_omp_all_clauses): Fix up pasto, c_name for OMP_CLAUSE_LINK
should be "link" rather than "to".
(cp_parser_omp_declare_target): Adjust for omp_declare_target_attr
to cp_omp_declare_target_attr changes, push -1 as device_type. Use
error_at rather than warning_at for declare target with only
device_type clauses.
(cp_parser_omp_begin): Add begin declare target support. Adjust
for omp_begin_assumes_data to cp_omp_begin_assumes_data change.
(cp_parser_omp_end): Adjust for the
omp_declare_target_attr to cp_omp_declare_target_attr and
omp_begin_assumes_data to cp_omp_begin_assumes_data type changes,
adjust diagnostics wording and simplify format strings for easier
* (finish_translation_unit): Likewise.
* (cplus_decl_attributes): If device_type was present on
begin declare target, add "omp declare target host" and/or
"omp declare target nohost" attributes.
2022-10-03 Jakub Jelinek <>
* cp-tree.h (BCS_STMT_EXPR): New enumerator.
* name-lookup.h (enum scope_kind): Add sk_stmt_expr.
* (begin_scope): Handle sk_stmt_expr like sk_block.
* (begin_compound_stmt): For BCS_STMT_EXPR use
* (cp_parser_statement_expr): Use BCS_STMT_EXPR instead of
* (struct named_label_entry): Add in_stmt_expr.
(poplevel_named_label_1): Handle sk_stmt_expr.
(check_previous_goto_1): Diagnose entering of statement expression.
(check_goto): Likewise.
2022-10-03 Patrick Palka <>
* (diagnose_trait_expr): Use CPTK_IS_SAME instead
* cp-trait.def (IS_SAME_AS): Rename to ...
(IS_SAME): ... this.
* (alias_ctad_tweaks): Use CPTK_IS_SAME instead of
* (trait_expr_value): Likewise.
(finish_trait_expr): Likewise.
2022-10-01 Patrick Palka <>
* (trait_expr_value): Make cp_trait_kind switch
statement exhaustive.
(finish_trait_expr): Likewise.
(finish_trait_type): Likewise.
2022-10-01 Jason Merrill <>
* (build_vec_init): Clear from_array for CONSTRUCTOR
2022-10-01 Jason Merrill <>
* (cp_genericize_init): Also convert the result of
split_nonconstant_init to void.
2022-09-30 Patrick Palka <>
* (diagnose_trait_expr): Likewise.
* (names_builtin_p): Likewise.
* cp-tree.h (enum cp_trait_kind): Likewise.
* (pp_cxx_trait): Likewise.
* (cp_keyword_starts_decl_specifier_p): Likewise.
(cp_parser_primary_expression): Likewise.
(cp_parser_trait): Likewise.
(cp_parser_simple_type_specifier): Likewise.
* cp-trait.def: New file.
2022-09-30 Jason Merrill <>
* (cp_fold_r) [TARGET_EXPR]: Collapse
* (cxx_eval_outermost_constant_expr): Avoid
adding redundant TARGET_EXPR.
* cp-tree.h (target_expr_needs_replace): VEC_INIT_EXPR doesn't.
2022-09-29 Patrick Palka <>
PR c++/102576
* (listify): Use lookup_qualified_name instead of
2022-09-29 Jason Merrill <>
* (check_methods): Call constraints_satisfied_p.
2022-09-29 Jason Merrill <>
* (potential_constant_expression_1): Look into
DECL_INITIAL. Use location wrappers.
2022-09-29 Jason Merrill <>
PR c++/93046
* (build_conditional_expr): For a?:c extension, treat
a reused class prvalue as an xvalue.
2022-09-29 Jason Merrill <>
* (build_conditional_expr): Set TARGET_EXPR_NO_ELIDE on the
2022-09-29 Patrick Palka <>
* (diagnose_trait_expr): Handle CPTK_REMOVE_CV,
* (names_builtin_p): Likewise.
* cp-tree.h (enum cp_trait_kind): Add CPTK_REMOVE_CV,
* (pp_cxx_trait): Handle CPTK_REMOVE_CV,
* (cp_keyword_starts_decl_specifier_p): Return true
(cp_parser_trait): Handle RID_REMOVE_CV, RID_REMOVE_REFERENCE
(cp_parser_simple_type_specifier): Likewise.
* (finish_trait_type): Likewise.
2022-09-29 Patrick Palka <>
* (cp_common_init_ts): Replace
* cp-tree.def (TRAIT_TYPE): Define.
* cp-tree.h (TRAIT_TYPE_KIND_RAW): Define.
(WILDCARD_TYPE_P): Return true for TRAIT_TYPE.
(finish_trait_type): Declare.
* (cxx_pretty_printer::primary_expression):
Adjust after renaming pp_cxx_trait_expression.
(cxx_pretty_printer::simple_type_specifier) <case TRAIT_TYPE>:
(cxx_pretty_printer::type_id): Replace UNDERLYING_TYPE with
(pp_cxx_trait_expression): Rename to ...
(pp_cxx_trait): ... this. Handle TRAIT_TYPE as well. Correct
pretty printing of the trailing arguments.
* cxx-pretty-print.h (pp_cxx_trait_expression): Rename to ...
(pp_cxx_trait_type): ... this.
* (dump_type) <case UNDERLYING_TYPE>: Remove.
<case TRAIT_TYPE>: New.
(dump_type_prefix): Replace UNDERLYING_WITH with TRAIT_TYPE.
(dump_type_suffix): Likewise.
* (write_type) <case UNDERLYING_TYPE>: Remove.
<case TRAIT_TYPE>: New.
* (trees_out::type_node) <case UNDERLYING_TYPE>:
<case TRAIT_TYPE>: New.
(trees_in::tree_node): Likewise.
* (cp_parser_primary_expression): Adjust after
renaming cp_parser_trait_expr.
(cp_parser_trait_expr): Rename to ...
(cp_parser_trait): ... this. Call finish_trait_type for traits
that yield a type.
(cp_parser_simple_type_specifier): Adjust after renaming
* (for_each_template_parm_r) <case UNDERLYING_TYPE>:
<case TRAIT_TYPE>: New.
(tsubst): Likewise.
(unify): Replace UNDERLYING_TYPE with TRAIT_TYPE.
(dependent_type_p_r): Likewise.
* (finish_underlying_type): Don't return
UNDERLYING_TYPE anymore when processing_template_decl.
(finish_trait_type): Define.
* (strip_typedefs) <case UNDERLYING_TYPE>: Remove.
<case TRAIT_TYPE>: New.
(cp_walk_subtrees): Likewise.
* (structural_comptypes): Likewise.
2022-09-29 Nathan Sidwell <>
PR c++/100616
* (enum tree_tag): Add tt_nttp_var.
(trees_out::decl_node): Handle NTTP objects.
(trees_in::tree_node): Handle tt_nttp_var.
(depset::hash::add_binding_entry): Skip NTTP objects.
2022-09-28 Eugene Rozenfeld <>
* (write_location): Write discriminator.
(read_location): Read discriminator.
2022-09-28 Nathan Sidwell <>
* cp-tree.h (DECL_NTTP_OBJECT_P): New.
(template_parm_object_p): Delete.
(build_template_parm_object): Declare.
* (pp_cx_template_argument_list): Use DECL_NTTP_OBJECT_P.
* (dump_simple_decl): Likewise.
* (write_template_arg): Likewise.
* (template_parm_object_p): Delete.
(create_template_parm_object): Separated out checking from ...
(get_template_parm_object): ... this, new external entry point.
2022-09-27 Marek Polacek <>
PR c++/101165
PR c++/106882
* (reference_binding): Check clk_implicit_rval in C++20 only.
* cp-tree.h (unparenthesized_id_or_class_member_access_p): Declare.
* (unparenthesized_id_or_class_member_access_p): New function,
broken out of...
(do_auto_deduction): Use it. In C++23, maybe call
* (xvalue_p): Check & clk_rvalueref, not == clk_rvalueref.
* (check_return_expr): Allow implicit move for functions
returning a reference as well, or when the return value type is not
a scalar type.
2022-09-27 Marek Polacek <>
* (diagnose_trait_expr): Say "nothrow" without quotes
rather than in quotes.
2022-09-27 Jonathan Wakely <>
PR c++/107049
* (is_convertible_helper): Use access check sentinel.
2022-09-27 Jakub Jelinek <>
PR c++/106651
* cp-tree.h (LAMBDA_EXPR_STATIC_P): Implement C++23
P1169R4 - static operator(). Define.
that it also allows static.
(cp_parser_lambda_declarator_opt): Handle static lambda specifier.
(cp_parser_decl_specifier_seq): Allow RID_STATIC for
* (grok_op_properties): If operator() isn't a method,
use a different error wording, if it is static member function,
allow it (for C++20 and older with a pedwarn unless it is
a lambda function or template instantiation).
* (joust): Don't ICE if one candidate is static member
function and the other is an indirect call. If the parameter
conversion on the other candidate is user defined conversion,
ellipsis or bad conversion, make static member function candidate
a winner for that parameter.
* (maybe_add_lambda_conv_op): Handle static lambdas.
* (dump_lambda_function): Print static for static lambdas.
2022-09-27 Jakub Jelinek <>
* cp-tree.h (struct omp_begin_assumes_data): New type.
(struct saved_scope): Add omp_begin_assumes member.
* Include bitmap.h.
(cp_parser_omp_assumption_clauses, cp_parser_omp_assume,
cp_parser_omp_assumes, cp_parser_omp_begin): New functions.
(cp_parser_omp_end_declare_target): Rename to ...
(cp_parser_omp_end): ... this. Handle also end assumes.
(cp_parser_omp_construct): Handle PRAGMA_OMP_ASSUME.
(cp_parser_pragma): Handle PRAGMA_OMP_ASSUME, PRAGMA_OMP_ASSUMES
and PRAGMA_OMP_BEGIN. Handle PRAGMA_OMP_END rather than
PRAGMA_OMP_END_DECLARE_TARGET and call cp_parser_omp_end
for it rather than cp_parser_omp_end_declare_target.
* (apply_late_template_attributes): Also temporarily clear
* (finish_translation_unit): Also diagnose
#pragma omp begin assumes without corresponding
#pragma omp end assumes.
2022-09-27 Jakub Jelinek <>
* (cp_parser_lambda_declarator_opt): Don't diagnose
conflicting specifiers here.
(cp_storage_class_name): New variable.
(cp_parser_decl_specifier_seq): When setting conflicting_specifiers_p
for the first time, diagnose which exact specifiers conflict.
(cp_parser_set_storage_class): Likewise. Move storage_class
computation earlier.
* (grokdeclarator): Don't diagnose conflicting specifiers
here, just return error_mark_node.
2022-09-27 Jakub Jelinek <>
PR c++/106652
PR c++/85518
* cp-tree.h (cp_compare_floating_point_conversion_ranks): Implement
P1467R9 - Extended floating-point types and standard names except
for std::bfloat16_t for now. Declare.
(extended_float_type_p): New inline function.
* (write_builtin_type): Mangle float{16,32,64,128}_type_node
as DF{16,32,64,128}_. Mangle float{32,64,128}x_type_node as
DF{32,64,128}x. Remove FIXED_POINT_TYPE mangling that conflicts
with that.
* (check_narrowing): If one of ftype or type is extended
floating-point type, compare floating-point conversion ranks.
* (cp_keyword_starts_decl_specifier_p): Handle
(cp_parser_simple_type_specifier): Likewise and diagnose missing
_Float<N> or _Float<N>x support if not supported by target.
* (cp_compare_floating_point_conversion_ranks): New function.
(cp_common_type): If both types are REAL_TYPE and one or both are
extended floating-point types, select common type based on comparison
of floating-point conversion ranks and subranks.
(cp_build_binary_op): Diagnose operation with floating point arguments
with unordered conversion ranks.
* (standard_conversion): For floating-point conversion, if
either from or to are extended floating-point types, set conv->bad_p
for implicit conversion from larger to smaller conversion rank or
with unordered conversion ranks.
(convert_like_internal): Emit a pedwarn on such conversions.
(build_conditional_expr): Diagnose operation with floating point
arguments with unordered conversion ranks.
(convert_arg_to_ellipsis): Don't promote extended floating-point types
narrower than double to double.
(compare_ics): Implement P1467R9 [over.ics.rank]/4 changes.
2022-09-26 Marek Polacek <>
PR c++/106656
* (array_string_literal_compatible_p): Allow
initializing arrays of char or unsigned char by a UTF-8 string literal.
2022-09-26 Marek Polacek <>
PR c++/106784
* (is_convertible_helper): New.
(is_convertible): Use it.
(is_nothrow_convertible): Likewise.
2022-09-26 Patrick Palka <>
PR c++/107033
* (trees_in::decl_value): In the MK_partial case for
a variable template partial specialization, pass decl_p=true to
add_mergeable_specialization, and set spec to the VAR_DECL not
* (add_mergeable_specialization): For a variable template
partial specialization, set the TREE_TYPE of the new
VAR_DECL not the VAR_DECL itself.
2022-09-23 Marek Polacek <>
PR c++/106784
* (diagnose_trait_expr): Handle CPTK_IS_CONVERTIBLE
* (names_builtin_p): Handle RID_IS_CONVERTIBLE
* cp-tree.h (enum cp_trait_kind): Add CPTK_IS_CONVERTIBLE and
(is_convertible): Declare.
(is_nothrow_convertible): Likewise.
* (pp_cxx_trait_expression): Handle
* (is_convertible): New.
(is_nothrow_convertible): Likewise.
* (cp_parser_primary_expression): Handle RID_IS_CONVERTIBLE
(cp_parser_trait_expr): Likewise.
* (trait_expr_value): Handle CPTK_IS_CONVERTIBLE and
(finish_trait_expr): Likewise.
2022-09-23 Marek Polacek <>
PR c++/106983
* (split_nonconstant_init_1): Check TYPE_P.
2022-09-22 Patrick Palka <>
PR c++/106826
* (trees_out::decl_value): Use get_template_info in
the MK_partial case to handle both VAR_DECL and TYPE_DECL.
(trees_out::key_mergeable): Likewise.
(trees_in::key_mergeable): Likewise.
(has_definition): Consider DECL_INITIAL of a partial variable
template specialization.
(depset::hash::make_dependency): Handle partial variable template
specializations too.
2022-09-20 Patrick Palka <>
* (cp_finish_decl): After updating the deduced type of a
VAR_DECL, also update the corresponding TEMPLATE_DECL if there
is one.
2022-09-20 Patrick Palka <>
PR c++/106761
* (trees_out::type_node) <case TYPE_PACK_EXPANSION>:
(trees_in::tree_node) <case TYPE_PACK_EXPANSION>: Likewise.
2022-09-17 Patrick Palka <>
* (friend_from_decl_list): Don't consider
(trees_in::read_class_def): Don't add to
2022-09-16 Patrick Palka <>
PR c++/92505
* (cxx_eval_component_reference): Check non_constant_p
sooner. In C++14 or later, reject a DECL_MUTABLE_P member access
2022-09-16 Jason Merrill <>
PR c++/106858
* (cp_parser_omp_var_list_no_open): Pass the
initial token location down.
* (finish_omp_clauses): Check
* (invalid_nonstatic_memfn_p): Handle null TREE_TYPE.
2022-09-15 Richard Biener <>
* (cxx_init_decl_processing): Inline last
build_void_list_node call.
(build_void_list_node): Remove.
2022-09-14 Julian Brown <>
* (finish_omp_clauses): Likewise.
2022-09-13 Patrick Palka <>
* cp-tree.h (mark_used): Remove single-parameter overload. Add
default argument to the two-parameter overload.
* (mark_used): Likewise.
2022-09-13 Patrick Palka <>
* cp-tree.h (cxx_constant_value): Define two-parameter version
that omits the object parameter.
* (build_explicit_specifier): Omit NULL_TREE object
argument to cxx_constant_value.
* (build_noexcept_spec): Likewise.
* (expand_integer_pack): Likewise.
(fold_targs_r): Likewise.
* (finish_if_stmt_cond): Likewise.
2022-09-13 Patrick Palka <>
* (build_explicit_specifier): Pass complain to
* (build_noexcept_spec): Likewise.
* (expand_integer_pack): Likewise.
(tsubst_function_decl): Propagate error_mark_node returned
from build_explicit_specifier.
2022-09-12 Patrick Palka <>
* (build_conditional_expr): Adjust calls to
'_sfinae'-suffixed functions.
(build_temp): Likewise.
(convert_like_internal): Likewise.
(convert_arg_to_ellipsis): Likewise.
(build_over_call): Likewise.
(build_cxx_call): Likewise.
(build_new_method_call): Likewise.
* (cxx_eval_outermost_constant_expr): Likewise.
(cxx_constant_value_sfinae): Rename to ...
(cxx_constant_value): ... this. Document its default arguments.
(fold_non_dependent_expr): Adjust function comment.
* cp-tree.h (instantiate_non_dependent_expr_sfinae): Rename to ...
(instantiate_non_dependent_expr): ... this. Give its 'complain'
parameter a default argument.
(get_target_expr_sfinae, get_target_expr): Likewise.
(require_complete_type_sfinae, require_complete_type): Likewise.
(abstract_virtuals_error_sfinae, abstract_virtuals_error):
(cxx_constant_value_sfinae, cxx_constant_value): Likewise.
* (build_up_reference): Adjust calls to '_sfinae'-suffixed
(ocp_convert): Likewise.
* (build_explicit_specifier): Likewise.
* (build_noexcept_spec): Likewise.
* (build_new_1): Likewise.
* (expand_integer_pack): Likewise.
(instantiate_non_dependent_expr_internal): Adjust function
(instantiate_non_dependent_expr): Rename to ...
(instantiate_non_dependent_expr_sfinae): ... this. Document its
default argument.
(tsubst_init): Adjust calls to '_sfinae'-suffixed functions.
(fold_targs_r): Likewise.
* (finish_compound_literal): Likewise.
(finish_decltype_type): Likewise.
(cp_build_bit_cast): Likewise.
* (build_cplus_new): Likewise.
(get_target_expr): Rename to ...
(get_target_expr_sfinae): ... this. Document its default
* (require_complete_type): Rename to ...
(require_complete_type_sfinae): ... this. Document its default
(cp_build_array_ref): Adjust calls to '_sfinae'-suffixed
(convert_arguments): Likewise.
(cp_build_binary_op): Likewise.
(build_static_cast_1): Likewise.
(cp_build_modify_expr): Likewise.
(convert_for_initialization): Likewise.
* (abstract_virtuals_error): Rename to ...
(abstract_virtuals_error_sfinae): ... this. Document its default
(build_functional_cast_1): Adjust calls to '_sfinae'-suffixed
2022-09-12 Patrick Palka <>
PR c++/101906
* (tsubst_template_args): Set cp_evaluated here.
(tsubst_aggr_type): Not here.
2022-09-12 Jason Merrill <>
PR c++/106893
PR c++/90451
* (cp_finish_decl): Call mark_single_function.
2022-09-12 Jason Merrill <>
PR c++/93259
* (type_dependent_expression_p): Treat a compound
literal of array-of-unknown-bound type like a variable.
2022-09-12 Jason Merrill <>
PR c++/106567
* (type_deducible_expression_p): Check
2022-09-12 Jonathan Wakely <>
PR c++/86491
* (constrain_class_visibility): Adjust wording of
-Wsubobject-linkage for cases where anonymous
namespaces aren't used.
* (decl_anon_ns_mem_p): Now only true for actual anonymous
namespace members, rename old semantics to...
(decl_internal_context_p): ...this.
* cp-tree.h,, Adjust.
2022-09-08 Jonathan Wakely <>
PR c++/106838
* (type_has_virtual_destructor): Return false for
union types.
* (check_trait_type): Add KIND parameter to support
different sets of requirements.
(finish_trait_expr): Pass KIND argument for relevant traits.
2022-09-08 Patrick Palka <>
PR c++/99130
* (maybe_instantiate_decl): Adjust function comment.
Check VAR_OR_FUNCTION_DECL_P. Pull out the disjunction into ...
(mark_used): ... here, removing the decl_maybe_constant_var_p
part of it.
2022-09-07 Jason Merrill <>
PR c++/106793
* (grokdeclarator): Improve placeholder diagnostics.
* (cp_parser_type_id_1): Add fixit.
2022-09-07 Arsen Arsenović <>
PR c++/106188
PR c++/106713
* (coro_rewrite_function_body): Ensure we have a
BIND_EXPR wrapping the function body.
2022-09-07 Jakub Jelinek <>
PR c++/106829
* (finish_omp_target_clauses): If current_function_decl
isn't a nonstatic member function, don't set data.current_object to
2022-09-06 Jason Merrill <>
* (grok_op_properties): Return sooner for C++23 op[].
2022-09-06 Jakub Jelinek <>
* (cp_parser_omp_clause_doacross_sink): Don't verify val
in omp_cur_iteration - 1 has integer_type_node type.
2022-09-06 Jakub Jelinek <>
* (tsubst_expr) <case OMP_ORDERED>: If OMP_BODY was NULL, keep
it NULL after instantiation too.
2022-09-03 Jakub Jelinek <>
* (cp_parser_omp_clause_name): Handle doacross.
(cp_parser_omp_clause_depend_sink): Renamed to ...
(cp_parser_omp_clause_doacross_sink): ... this. Add depend_p
argument. Handle parsing of doacross(sink:omp_cur_iteration-1). Use
(cp_parser_omp_clause_depend): Use OMP_CLAUSE_DOACROSS_SINK and
(cp_parser_omp_clause_doacross): New function.
(cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DOACROSS.
(cp_parser_omp_depobj): Use OMP_CLAUSE_DEPEND_INVALID instead of
(cp_parser_omp_for_loop): Don't diagnose here linear clause together
with ordered with argument.
(cp_parser_omp_simd): Don't diagnose ordered clause with argument on
for simd.
(cp_parser_omp_ordered): Handle also doacross and adjust for it
diagnostic wording.
* (tsubst_omp_clause_decl): Use
(tsubst_omp_clauses): Handle OMP_CLAUSE_DOACROSS.
(tsubst_expr): Use OMP_CLAUSE_DEPEND_INVALID instead of
* (cp_finish_omp_clause_depend_sink): Rename to ...
(cp_finish_omp_clause_doacross_sink): ... this.
(finish_omp_clauses): Handle OMP_CLAUSE_DOACROSS. Don't handle
2022-09-02 David Malcolm <>
PR c/90885
* cp-tree.h (class cp_expr): Add bitfield m_decimal. Clear it in
existing ctors. Add ctor that allows specifying its value.
(cp_expr::decimal_p): New accessor.
* (cp_parser_expression_stack_entry::flags): New field.
(cp_parser_primary_expression): Set m_decimal of cp_expr when
handling numbers.
(cp_parser_binary_expression): Extract flags from token when
populating stack. Call check_for_xor_used_as_pow.
2022-09-01 Marek Polacek <>
* cp-tree.h (maybe_strip_ref_conversion): Remove.
2022-08-30 Ulrich Drepper <>
* Add rule to rebuild std-name-hint.h from
* (get_std_name_hint): Remove hints array.
Use gperf-generated class std_name_hint_lookup.
Include "std-name-hint.h".
* std-name-hint.gperf: New file.
* std-name-hint.h: New file. Generated from the .gperf file.
2022-08-30 Marek Polacek <>
PR c++/106759
* (names_builtin_p): Handle RID_IS_NOTHROW_ASSIGNABLE
2022-08-29 Marek Polacek <>
PR c++/106712
* (grokdeclarator): Reverse the order of arguments to
2022-08-26 Marek Polacek <>
PR c++/81159
* (maybe_warn_self_move): New.
(cp_build_modify_expr): Call maybe_warn_self_move.
2022-08-25 Marek Polacek <>
* cp-tree.h (enum cp_tree_index): Remove CTI_NULLPTR, CTI_NULLPTR_TYPE.
Move it to c_tree_index.
(nullptr_node): No longer define here.
(nullptr_type_node): Likewise.
(NULLPTR_TYPE_P): Likewise.
* (cxx_init_decl_processing): Only keep C++-specific nullptr
initialization; move the shared code to c_common_nodes_and_builtins.
2022-08-25 Jason Merrill <>
* (unsafe_return_slot_p): Return 2 for *this in a
2022-08-23 Marek Polacek <>
* (maybe_warn_pessimizing_move): Don't warn about
redundant std::move when the expression was wrapped in { }.
2022-08-17 Marek Polacek <>
PR c++/90428
* (can_do_rvo_p): Rename to ...
(can_elide_copy_prvalue_p): ... this.
(maybe_warn_pessimizing_move): Extend the
-Wredundant-move warning to warn about std::move on a
const-qualified object.
2022-08-17 Marek Polacek <>
PR c++/89780
* (tsubst_copy_and_build) <case CALL_EXPR>: Maybe suppress
* (maybe_warn_pessimizing_move): Don't issue warnings
if they are suppressed.
(check_return_expr): Disable -Wpessimizing-move when returning
a dependent expression.
2022-08-17 Marek Polacek <>
PR c++/106276
* (build_over_call): Call maybe_warn_pessimizing_move.
* cp-tree.h (maybe_warn_pessimizing_move): Declare.
* (build_aggr_init_full_exprs): Call
* (maybe_warn_pessimizing_move): Handle TREE_LIST and
CONSTRUCTOR. Add a bool parameter and use it. Adjust a diagnostic
(check_return_expr): Adjust the call to maybe_warn_pessimizing_move.
2022-08-17 Tobias Burnus <>
Chung-Lin Tang <>
PR c++/104493
* cp-objcp-common.h (LANG_HOOKS_OMP_MAPPABLE_TYPE): Remove.
* cp-tree.h (cp_omp_mappable_type, cp_omp_emit_unmappable_type_notes):
* (cp_omp_mappable_type_1, cp_omp_mappable_type,
cp_omp_emit_unmappable_type_notes): Remove.
(cplus_decl_attributes): Call omp_mappable_type instead of
removed langhook.
* (cp_finish_decl): Likewise; call cxx_incomplete_type_inform
in lieu of cp_omp_emit_unmappable_type_notes.
* (finish_omp_clauses): Likewise.
2022-08-16 Tom Honermann <>
PR c++/106423
* (cp_lexer_saving_tokens): Add comment regarding
diagnostic requirements.
2022-08-16 Jakub Jelinek <>
* (cp_build_modify_expr): Implement
P2327R1 - De-deprecating volatile compound operations. Don't warn
for |=, &= or ^= with volatile lhs.
* (mark_use) <case MODIFY_EXPR>: Adjust warning wording,
leave out simple.
2022-08-15 Marek Polacek <>
PR c++/106276
* (can_do_rvo_p): New.
(maybe_warn_pessimizing_move): Warn when moving a temporary object
in a return statement prevents copy elision.
2022-08-11 Marek Polacek <>
PR middle-end/102633
* (cp_finish_decl): Call suppress_warning.
2022-08-07 Jakub Jelinek <>
PR c++/88174
* (cxx_eval_store_expression): Handle REALPART_EXPR
and IMAGPART_EXPR. Change ctors from releasing_vec to
auto_vec<tree *>, adjust all uses. For !preeval, update ctors
2022-07-31 Lewis Hyatt <>
PR c++/66290
* (cp_lexer_new_main): Rename global done_lexing to
2022-07-31 Jason Merrill <>
PR c++/106369
* (reduced_constant_expression_p): Return false
if a CONSTRUCTOR initializes an empty field.
2022-07-29 Jakub Jelinek <>
PR c++/106448
* (cp_parser_omp_atomic): For simple cast followed by
CPP_QUERY token, don't try cp_parser_binary_operation if compare
is true.
2022-07-26 Marek Polacek <>
PR c++/106311
* (redeclare_class_template): Check DECL_P before accessing
2022-07-26 Jason Merrill <>
PR c++/106230
* (finish_for_stmt): Check stmts_are_full_exprs_p.
2022-07-25 Jason Merrill <>
PR c++/87729
* (warn_hidden): Remove shortcut.
2022-07-22 Patrick Palka <>
PR c++/106366
* (do_class_deduction): Don't consider TYPE_HAS_LIST_CTOR
when setting try_list_ctor. Reset args even when try_list_ctor
is true and there are no list candidates. Call resolve_args on
the reset args. Rename try_list_ctor to try_list_cand.
2022-07-22 Martin Liska <>
PR other/106370
* (sort_mem_initializers): Remove continue as last stmt
in a loop.
2022-07-21 Jason Merrill <>
PR c++/106361
* (move_fn_p): Remove assert.
2022-07-21 Jason Merrill <>
DR 2084
PR c++/98423
* (walk_field_subobs): Fix DMI in union case.
2022-07-19 Patrick Palka <>
PR c++/94894
PR c++/105766
PR c++/106201
* (enum conversion_kind): Add ck_deferred_bad enumerator.
(has_next): Return false for it.
(reference_binding): Return a ck_deferred_bad conversion instead
of an actual bad conversion when LOOKUP_SHORTCUT_BAD_CONVS is set.
Remove now obsolete early exit for the incomplete TO case.
(implicit_conversion_1): Don't mask out LOOKUP_SHORTCUT_BAD_CONVS.
(add_function_candidate): Set LOOKUP_SHORTCUT_BAD_CONVS iff
(missing_conversion_p): Also return true for a ck_deferred_bad
* cp-tree.h (LOOKUP_SHORTCUT_BAD_CONVS): Define.
2022-07-19 Jonathan Wakely <>
* (names_builtin_p): Return true for
2022-07-15 Marek Polacek <>
PR c++/104477
* (ref_conv_binds_directly_p): Rename to ...
(ref_conv_binds_directly): ... this. Add a new bool parameter. Change
the return type to tristate.
* (diagnose_trait_expr): Handle
* cp-tree.h: Include "tristate.h".
(ref_conv_binds_directly_p): Rename to ...
(ref_conv_binds_directly): ... this.
(ref_xes_from_temporary): Declare.
* (pp_cxx_trait_expression): Handle
* (ref_xes_from_temporary): New.
* (cp_parser_primary_expression): Handle
(cp_parser_trait_expr): Likewise.
(warn_for_range_copy): Adjust to call ref_conv_binds_directly.
* (trait_expr_value): Handle
(finish_trait_expr): Likewise.
2022-07-13 Patrick Palka <>
PR c++/105912
* (tsubst_copy_and_build) <case CALL_EXPR>: Guard against
NULL_TREE extract_call_expr result.
2022-07-13 Patrick Palka <>
PR c++/105842
* (satisfy_declaration_constraints): Refine early
exit test for argument dependence.
* cp-tree.h (uses_outer_template_parms_in_constraints): Declare.
* (template_class_depth): Handle TI_TEMPLATE being a
(usse_outer_template_parms): Factor out constraint dependence
test into ...
(uses_outer_template_parms_in_constraints): ... here.
(type_dependent_expression_p): Use it for FUNCTION_DECL.
2022-07-07 Patrick Palka <>
PR c++/105956
* (template_arg_to_parm): Define.
(tsubst_argument_pack): Try to reuse the corresponding
ARGUMENT_PACK from 'args' when substituting into a generic
ARGUMENT_PACK for a variadic template parameter.
(tsubst_template_args): Move variable declarations closer to
their first use. Replace 'orig_t' with 'r'. Rename 'need_new'
to 'const_subst_p'. Heuristically detect if the substituted
elements are identical to that of a level from 'args' and avoid
allocating a new TREE_VEC if so. Add sanity check for the
length of the new TREE_VEC, and remove dead ARGUMENT_PACK_P test.
(tsubst_decl) <case TYPE_DECL, case VAR_DECL>: Revert
r13-1045-gcb7fd1ea85feea change for avoiding substitution into
DECL_TI_ARGS, but still avoid coercion in this case.
2022-07-07 Jason Merrill <>
PR c++/87729
* (warn_hidden): Ignore [cd]tors.
2022-07-06 Lewis Hyatt <>
PR c++/53431
* (cp_parser_pragma_kind): Move earlier in the file.
(cp_lexer_handle_early_pragma): New function.
(cp_lexer_new_main): Support parsing and handling early pragmas.
(c_parse_file): Adapt to changes in cp_lexer_new_main.
2022-07-06 Jason Merrill <>
PR c++/106179
PR c++/106024
* (cp_parser_lookup_name): Remove :: requirement
for using unqualified lookup result.
2022-07-05 Nathan Sidwell <>
(struct ord_loc_info, ord_loc_traits): New.
(ord_loc_tabke, ord_loc_remap): New globals.
(struct location_map_info): Delete.
(struct module_state_config): Rename ordinary_loc_align to
(module_for_ordinary_loc): Adjust.
(module_state::note_location): Note ordinary locations,
return bool.
(module_state::write_location): Adjust ordinary location
(module_state::read_location): Likewise.
(module_state::write_init_maps): Allocate ord_loc_table.
(module_state::write_prepare_maps): Reimplement ordinary
map preparation.
(module_state::read_prepare_maps): Adjust.
(module_state::write_ordinary_maps): Reimplement.
(module_state::write_macro_maps): Adjust.
(module_state::read_ordinary_maps): Reimplement.
(module_state::write_macros): Adjust.
(module_state::write_config): Adjust.
(module_state::read_config): Adjust.
(module_state::write_begin): Adjust.
(module_state::read_initial): Adjust.
2022-07-04 Tobias Burnus <>
Chung-Lin Tang <>
Thomas Schwinge <>
* (cp_parser_omp_target_data,
cp_parser_omp_target_enter_data, cp_parser_omp_target_exit_data,
cp_parser_omp_target_update): Set OMP_REQUIRES_TARGET_USED.
(cp_parser_omp_requires): Remove sorry.
2022-07-01 Lewis Hyatt <>
* (cp_token_is_module_directive): New function
refactoring common code.
(cp_parser_skip_to_closing_parenthesis_1): Use the new function.
(cp_parser_skip_to_end_of_statement): Likewise.
(cp_parser_skip_to_end_of_block_or_statement): Likewise.
(cp_parser_declaration): Likewise.
2022-07-01 Marek Polacek <>
PR c++/105550
* (cxx_eval_conditional_expression): Strip TARGET_EXPRs.
2022-07-01 Tobias Burnus <>
* (cp_parser_omp_target_enter_data,
cp_parser_omp_target_exit_data): Accept tofrom
map-type modifier but use 'to' / 'from' internally.
2022-07-01 Marek Polacek <>
PR c++/106111
* (cp_lexer_get_preprocessor_token): Also warn about
2022-07-01 Jason Merrill <>
PR c++/105779
* (resolve_args): Use complain.
2022-07-01 Jason Merrill <>
* (missing_template_diag): Split out...
(cp_parser_id_expression): ...from here.
2022-07-01 Jason Merrill <>
PR c++/106024
* (missing_template_diag): Factor out...
(cp_parser_id_expression): ...from here.
(cp_parser_lookup_name): Don't look in dependent object_type.
2022-06-30 Nathan Sidwell <>
* (module_state::write_define): Drop located param.
(module_state::read_define): Likewise.
(module_state::prepare_macros): New, broken out of ...
(module_state::write_macros): ... here. Adjust.
(module_state::write_begin): Adjust.
2022-06-29 Nathan Sidwell <>
* (macro_info, macro_traits, macro_table,
macro_remap): Rename to ...
(macro_loc_info, macro_loc_traits, macro_loc_table,
macro_loc_remap): ... these. Update all uses.
(module_state::write_prepare_maps): Remove unneeded macro checking.
(module_state::write_begin): Free macro_loc_remap.
2022-06-27 Sergei Trofimovich <>
PR c++/106102
* Include <memory> via "system.h".
* Ditto.
* Ditto.
2022-06-27 David Malcolm <>
* cxx-pretty-print.h: Add "final" and "override" to various vfunc
implementations, removing redundant "virtual" as appropriate.
* Likewise.
2022-06-24 Jason Merrill <>
PR c++/87729
PR c++/20423
* (warn_hidden): Handle -Woverloaded-virtual=1.
2022-06-24 Alexandre Oliva <>
* (lang_specific_driver): Implement -nostdlib++.
2022-06-23 Jason Merrill <>
PR c++/105925
* (build_aggr_conv): Don't depend on
2022-06-23 Jason Merrill <>
PR c++/105925
* (reshape_init_array_1): Set
(reshape_init_class): And here.
(reshape_init): Not here.
2022-06-23 Patrick Palka <>
PR c++/105931
* (fold_for_warn): Don't fold when in an unevaluated
2022-06-23 Patrick Palka <>
PR c++/105982
* (lookup_template_class): After calling complete_type for
the substituted context, check the table again iff the type was
previously incomplete and complete_type made it complete.
2022-06-23 Jason Merrill <>
PR c++/94554
* (dependent_operand_p): Split out from...
(tsubst_expr) [IF_STMT]: Use it.
* (finish_if_stmt_cond): Keep the pre-conversion
condition in the template tree.
2022-06-23 Jason Merrill <>
PR c++/105885
* (tsubst_copy_and_build): Also suppress -Waddress for
comparison of dependent operands.
2022-06-23 Nathan Sidwell <>
* (struct macro_info): New.
(struct macro_traits): New.
(macro_remap, macro_table): New globals.
(depset::hash::find_dependencies): Note namespace location.
(module_for_macro_loc): Adjust.
(module_state::note_location): New.
(module_state::Write_location): Note location when not
streaming. Adjust macro location streaming.
(module_state::read_location): Adjust macro location
(module_state::write_init_maps): New.
(module_state::write_prepare_maps): Reimplement macro map
(module_state::write_macro_maps): Reimplement.
(module_state::read_macro_maps): Likewise.
(module_state::write_begin): Adjust.
2022-06-23 Jason Merrill <>
* (type_unification_real): An auto tparm can't
be affected by other deductions.
2022-06-23 Jason Merrill <>
PR c++/105964
* (type_dependent_expression_p): Look through BASELINK.
2022-06-22 Jason Merrill <>
PR c++/105908
* (outer_binding): Strip BASELINK.
2022-06-22 Nathan Sidwell <>
* (struct duplicate_hash): Remove.
(duplicate_hash_map): Adjust.
2022-06-22 Jason Merrill <>
PR c++/104642
* (cxx_eval_builtin_function_call): Handle
unreachable/trap earlier.
* (cp_maybe_instrument_return): Use
2022-06-18 Jakub Jelinek <>
* (cp_ubsan_instrument_vptr_p): Use
flag_sanitize_trap & SANITIZE_VPTR instead of
2022-06-17 Jakub Jelinek <>
PR c++/106001
* (build_x_shufflevector): Use fold_non_dependent_expr
instead of maybe_constant_value.
2022-06-16 Nathan Sidwell <>
* (finish_objects): Add startp parameter, adjust.
(generate_ctor_or_dtor_function): Detect empty fn, and don't
generate unnecessary code. Remove objc startup here ...
(c_parse_final_cleanyps): ... do it here.
2022-06-16 Martin Liska <>
* (struct priority_map_traits): Remove unused param.
2022-06-15 Nathan Sidwell <>
* (module_state::write_readme): Use less confusing
importable unit names.
2022-06-14 Nathan Sidwell <>
* cp-tree.h (fini_modules): Add has_inits parm.
* (c_parse_final_cleanups): Check for
inits, adjust fini_modules flags.
* (module_state): Rename call_init_p to
(module_state::write_config): Write active_init.
(module_state::read_config): Read it.
(module_determine_import_inits): Clear active_init_p
of covered inits.
(late_finish_module): Add has_init parm. Record it.
(fini_modules): Adjust.
2022-06-13 Nathan Sidwell <>
* (module_state::write): Separate to ...
(module_state::write_begin, module_state::write_end): ...
(module_state::write_readme): Drop extensions parameter.
(struct module_processing_cookie): Add more fields.
(finish_module_processing): Adjust state writing call.
(late_finish_module): Call write_end.
2022-06-10 Patrick Palka <>
PR c++/65328
* (typename_hasher::hash): Add extra overloads.
Use iterative_hash_object instead of htab_hash_pointer.
(build_typename_type): Use typename_hasher::hash.
* (spec_hasher::hash): Add two-parameter overload.
Set comparing_specializations around the call to
(iterative_hash_template_arg) <case TYPENAME_TYPE>:
When comparing_specializations, hash the TYPE_CONTEXT
(tsubst_function_decl): Use spec_hasher::hash instead of
(tsubst_template_decl): Likewise.
(tsubst_decl): Likewise.
2022-06-10 Patrick Palka <>
* (instantiate_template): Don't substitute the context
of the most general template if that of the partially
instantiated template is already non-dependent.
2022-06-10 Patrick Palka <>
* (lookup_template_class): Remove dead stores to
context parameter. Don't substitute the context of the
most general template if that of the partially instantiated
template is already non-dependent. Check the specializations
table again after completing the context of a nested dependent
(tsubst_aggr_type) <case RECORD_TYPE>: Don't substitute
TYPE_CONTEXT or pass it to lookup_template_class.
(tsubst_decl) <case TYPE_DECL, case TYPE_DECL>: Avoid substituting
the TREE_TYPE for DECL_SELF_REFERENCE_P. Avoid template argument
substitution or coercion in some cases.
2022-06-10 Nathan Sidwell <>
* cp-tree.h (fini_modules): Add some parameters.
(finish_module_processing): Return an opaque pointer.
* (c_parse_final_cleanups): Propagate a cookie from
finish_module_processing to fini_modules.
* (struct module_processing_cookie): New.
(finish_module_processing): Return a heap-allocated cookie.
(late_finish_module): New. Finish out the module writing.
(fini_modules): Adjust.
2022-06-10 Nathan Sidwell <>
* cp-tree.h (module_has_import_init): Rename to ...
(module_determined_import_inits): ... here.
* (start_objects): Do not handle module initializers
(c_parse_final_cleanups): Generate a separate module
initializer calling function and add it to the list. Shrink
the c-lang region.
* (num_init_calls_needed): Delete.
(module_has_import_init): Rename to ...
(module_determined_import_inits): ... here. Do the
calculation here ...
(finish_module_processing): ... rather than here.
(module_add_import_initializers): Reformat.
2022-06-09 Jakub Jelinek <>
PR c++/105871
* (cxx_eval_bit_field_ref): For BIT_FIELD_REF with
non-integral result type use fold_ternary too like for BIT_FIELD_REFs
from VECTOR_CST. If fold_ternary returns NULL, diagnose non-constant
expression, set *non_constant_p and return t, instead of returning
2022-06-09 Nathan Sidwell <>
* cp-tree.h (module_initializer_kind): Replace with ...
(module_global_init_needed, module_has_import_inits): ...
* (start_objects): Add has_body parm. Reorganize
module initializer creation.
(generate_ctor_or_dtor_function): Adjust.
(c_parse_final_cleanups): Adjust.
(vtv_start_verification_constructor_init_function): Adjust.
* (module_initializer_kind): Replace with ...
(module_global_init_needed, module_has_import_inits): ...
2022-06-08 Jason Merrill <>
PR c++/105852
* (duplicate_decls): Change non-templated friend
check to an assert.
* (tsubst_function_decl): Don't set DECL_TEMPLATE_INFO
on non-templated friends.
(tsubst_friend_function): Adjust.
2022-06-08 Jason Merrill <>
PR c++/105852
PR c++/105761
* (duplicate_decls): Avoid copying template info
from non-templated friend even if newdecl isn't a definition.
Correct handling of DECL_UNIQUE_FRIEND_P on templates.
* (non_templated_friend_p): New.
* cp-tree.h (non_templated_friend_p): Declare it.
2022-06-08 Nathan Sidwell <>
* (struct priority_info_s, priority_info): Delete.
(priority_map_traits, priority_map_t): New.
(static_init_fini_fns): New.
(initialize_p_decl, priority_decl): Delete.
(ssdf_decls, priority_info_map): Delete.
(start_static_storage_duration_function): Rename to ...
(start_partial_init_fini_fn): ... here. Create a void arg fn.
Add it to the slot in the appropriate static_init_fini_fns
hash table.
(finish_static_storage_duration_function): Rename to ...
(finish_partial_init_fini_fn): ... here.
(get_priority_info): Delete.
(one_static_initialization_or_destruction): Assert not
trivial dtor.
(do_static_initialization_or_destruction): Rename to ...
(emit_partial_init_fini_fn) ... here. Start & finish the fn.
Simply init/fini each var.
(partition_vars_for_init_fini): Partition vars according to
priority and add to init and/or fini list.
(generate_ctor_or_dtor_function): Start and finish the function.
Do santitizer calls here.
(generate_ctor_and_dtor_functions_for_priority): Delete.
(c_parse_final_cleanups): Reimplement global init/fini
2022-06-07 Jakub Jelinek <>
* (cp_parser_omp_clause_linear): Parse OpenMP 5.2
style linear clause modifiers. Set
old style modifiers are used.
* (finish_omp_clauses): Only reject linear clause
with val modifier on simd or for if the old style modifiers are
2022-06-07 Roger Sayle <>
PR c++/96442
* (start_enum): When emitting a "must be integral" error,
set ENUM_UNDERLYING_TYPE to integer_type_node, to avoid an ICE
downstream in build_enumeration.
2022-06-06 Patrick Palka <>
PR c++/53164
PR c++/105848
* (tsubst_copy_and_build) <case CALL_EXPR>: Look through an
ADDR_EXPR callee when calling mark_used.
2022-06-04 Marek Polacek <>
PR c++/102399
PR c++/69585
* (cp_parser_attributes_opt): Accept GNU attributes
followed by [[]] attributes and vice versa.
2022-06-03 Patrick Palka <>
PR c++/105756
* (cp_build_binary_op): Don't fold operands
when c_inhibit_evaluation_warnings.
2022-06-03 Jason Merrill <>
PR c++/105761
* (duplicate_decls): Don't copy DECL_TEMPLATE_INFO
from a hidden friend.
2022-06-03 Patrick Palka <>
PR c++/105637
* (maybe_dummy_object): When returning a dummy
object, respect the cv-quals of 'this' if available.
2022-06-03 Patrick Palka <>
PR c++/100374
* (determine_specialization): Compare overall constraints
not just the trailing constraints.
(tsubst_each_template_parm_constraints): Define.
(tsubst_friend_function): Use it.
(tsubst_friend_class): Use it.
(tsubst_template_parm): Don't substitute TEMPLATE_PARM_CONSTRAINTS.
2022-06-03 Patrick Palka <>
PR c++/105797
* (for_each_template_parm_r) <case FUNCTION_DECL, VAR_DECL>:
Don't walk DECL_CONTEXT.
<case PARM_DECL>: Likewise. Walk TREE_TYPE.
<case CONST_DECL>: Simplify.
(any_template_parm_r) <case PARM_DECL>: Don't walk TREE_TYPE.
2022-06-02 Marek Polacek <>
* (potential_constant_expression_1): Treat
{,VEC_}NEW_EXPR and {,VEC_}DELETE_EXPRas potentially constant in C++20.
2022-06-02 Marek Polacek <>
PR c++/105803
* (value_dependent_expression_p): Handle {,VEC_}NEW_EXPR
in the switch.
2022-06-02 David Malcolm <>
(cp_get_sarif_source_language): New.
2022-06-02 Jason Merrill <>
PR c++/105795
* (init_subob_ctx): Clear ctx->ctor for empty subob.
(cxx_eval_store_expression): Likewise.
(cxx_eval_bare_aggregate): Handle null ctx->ctor.
2022-06-02 Jason Merrill <>
PR c++/105795
* (cxx_eval_bare_aggregate): Always call
2022-06-01 Jason Merrill <>
PR c++/105734
* (cp_parser_postfix_dot_deref_expression): Use typeof
if the expression has auto type.
2022-06-01 Jason Merrill <>
PR c++/105779
* (resolve_args): Call mark_single_function here.
* (unify_one_argument): Not here.
2022-06-01 Nathan Sidwell <>
* (fix_temporary_vars_context_r): Use data argument
for new context.
(one_static_initialization_or_destruction): Adjust tree walk
call. Refactor guard generation.
2022-06-01 Nathan Sidwell <>
* (ssdf_decl): Delete global.
(start_static_storage_duration_function): Use some RAII.
(do_static_initialization_or_destruction): Likewise.
(c_parse_final_cleanups): Likewise. Avoid rechecking 'vars'.
2022-06-01 Nathan Sidwell <>
* (start_objects): Replace 'method_type' parameter
with 'initp' boolean, rename and retype 'priority' parameter.
(finish_objects): Likewise. Do not expand here.
(one_static_initialization_or_destruction): Move 'initp'
parameter first.
(do_static_initialization_or_destruction): Likewise.
(generate_ctor_or_dtor_function): Rename 'initp' parameter.
Adjust start_objects/finish_obects calls and expand here.
(generate_ctor_and_dtor_functions_for_priority): Adjust calls.
(c_parse_final_cleanups): Likewise.
(vtv_start_verification_constructor_init): Adjust.
(vtv_finish_verification_constructor_init): Use finish_objects.
2022-05-31 Patrick Palka <>
PR c++/105758
* (build_over_call): Use z_candidate::conversion_path
and ::access_path instead of TYPE_BINFO when building the
BASELINK for the templated form.
2022-05-31 Patrick Palka <>
* Use auto_timevar instead of timevar_push/pop.
Remove wrapper functions.
* Likewise.
2022-05-31 Patrick Palka <>
* cp-tree.h (cp_build_qualified_type_real): Rename to ...
(cp_build_qualified_type): ... this. Give its last parameter
a default argument. Remove macro of the same name.
* (grokdeclarator): Adjust accordingly.
* (tsubst_aggr_type): Likewise.
(rebuild_function_or_method_type): Likewise.
(tsubst): Likewise.
(maybe_dependent_member_ref): Likewise.
(unify): Likewise.
* (cp_build_qualified_type_real): Rename to ...
(cp_build_qualified_type): ... this. Adjust accordingly.
2022-05-31 Jason Merrill <>
* (c++.tags): Just look at *.cc.
2022-05-31 Patrick Palka <>
* cp-tree.h (comp_template_args): Change return type to bool.
* (comp_template_args): Document default arguments.
Change return type to bool and adjust returns accordingly.
2022-05-31 Patrick Palka <>
* (grokvardecl): Use current_template_constraints.
(grokdeclarator): Likewise.
(xref_tag): Likewise.
* (finish_template_template_parm): Likewise.
2022-05-31 Jakub Jelinek <>
* (OMP_SCOPE_CLAUSE_MASK): Add firstprivate and allocate
2022-05-30 Marek Polacek <>
PR c++/99080
* (type_dependent_expression_p): Assert !TYPE_P.
* (finish_id_expression_1): Handle UNBOUND_CLASS_TEMPLATE
2022-05-28 Jakub Jelinek <>
* (handle_omp_declare_target_clause): If OMP_CLAUSE_LINK was
seen first, use "%<to%>" or "%<enter%>" depending on
OMP_CLAUSE_ENTER_TO of the current clause, otherwise use
"%<to%> or %<enter%>" wording.
2022-05-28 Jason Merrill <>
PR c++/105652
* (tsubst_lambda_expr): Don't let a namespace-scope lambda
instantiate into a class-scope lambda.
2022-05-27 Marek Polacek <>
PR c++/105725
* (class_decl_loc_t::add): Check CLASS_TYPE_P.
2022-05-27 Jakub Jelinek <>
* (cp_parser_omp_clause_name): Parse enter clause.
(cp_parser_omp_all_clauses): For to clause on declare target, use
(cp_parser_omp_declare_target): Use OMP_CLAUSE_ENTER instead of
* (finish_omp_clauses): Handle OMP_CLAUSE_ENTER instead
name in diagnostics instead of
omp_clause_code_name[OMP_CLAUSE_CODE (c)].
2022-05-26 Marek Polacek <>
PR c++/105569
* (warn_for_null_address): Improve the warning when
the POINTER_PLUS_EXPR's base is of reference type.
2022-05-26 Patrick Palka <>
PR c++/96363
* (shadow_tag): Use the return value of
* (cp_parser_single_declaration): Call shadow_tag
before associate_classtype_constraints.
* (maybe_new_partial_specialization): Change return type
to bool. Take 'type' argument by mutable reference. Set 'type'
to point to the correct constrained specialization when
(maybe_process_partial_specialization): Adjust accordingly.
2022-05-25 Marek Polacek <>
PR c++/96637
* cp-tree.h (attr_chainon): Declare.
* (start_decl): Use attr_chainon.
(grokdeclarator): Likewise.
* (cp_parser_statement): No longer static.
2022-05-25 Jason Merrill <>
PR c++/105655
* (build_template_decl): Add assert.
(tsubst_function_decl): Don't return a template.
2022-05-25 Jason Merrill <>
PR c++/105623
* (mark_used): Copy type from fn to BASELINK.
* (unify_one_argument): Call mark_single_function.
2022-05-25 Jason Merrill <>
* (cxx_eval_call_expression): Check for
heap vars in the result.
2022-05-25 Jason Merrill <>
* (maybe_constant_init_1): Only pass false for
strict when initializing a variable of static duration.
2022-05-25 Marek Polacek <>
PR c++/100252
* (potential_prvalue_result_of): New.
(replace_placeholders_for_class_temp_r): New.
(digest_nsdmi_init): Call it.
2022-05-24 Jason Merrill <>
* (cxx_fold_indirect_ref): Add default arg.
(cxx_eval_call_expression): Call it.
(cxx_fold_indirect_ref_1): Handle null empty_base.
2022-05-24 Jason Merrill <>
* (enum value_cat): New. Change all 'lval' parameters
from int to value_cat. Change most false to vc_prvalue, most true
to vc_glvalue, cases where the return value is ignored to
(cxx_eval_statement_list): Only vc_prvalue for stmt-expr result.
(cxx_eval_store_expression): Only build _REF for vc_glvalue.
(cxx_eval_array_reference, cxx_eval_component_reference)
(cxx_eval_indirect_ref, cxx_eval_constant_expression): Likewise.
2022-05-24 Jason Merrill <>
PR c++/105622
* (cxx_eval_store_expression): Adjust assert.
Use initialized_type.
2022-05-24 Patrick Palka <>
* cp-tree.h (any_template_arguments_need_structural_equality_p):
* (struct ctp_hasher): Define.
(ctp_table): Define.
(canonical_type_parameter): Use it.
(process_template_parm): Set TYPE_CANONICAL for
(lookup_template_class_1): Remove now outdated comment for the
any_template_arguments_need_structural_equality_p test.
(tsubst) <case TEMPLATE_TEMPLATE_PARM, etc>: Don't specifically
clear TYPE_CANONICAL for ttps. Set TYPE_CANONICAL on the
substituted type later.
(any_template_arguments_need_structural_equality_p): Return
true for any_targ_node. Don't return true just because a
template argument uses structural equality. Add comment for
the PARM_DECL special case.
(rewrite_template_parm): Set TYPE_CANONICAL on the rewritten
parm's type later.
* (bind_template_template_parm): Set TYPE_CANONICAL
when safe to do so.
* (structural_comptypes) [check_alias]: Increment
processing_template_decl before checking
2022-05-24 Jakub Jelinek <>
PR c/105378
* (OMP_TASKWAIT_CLAUSE_MASK): Add nowait clause.
2022-05-20 David Malcolm <>
* cxx-pretty-print.h: Replace uses of "FINAL" and "OVERRIDE" with
"final" and "override".
* Likewise.
2022-05-18 Marek Polacek <>
PR c++/105634
* (maybe_warn_class_memaccess): Avoid % by zero.
2022-05-17 Jason Merrill <>
PR c++/102307
* (check_initializer): Use build_cplus_new in case of
constexpr failure.
2022-05-17 Jakub Jelinek <>
* (cp_parser_omp_clause_depend): Parse
inoutset depend-kind.
(cp_parser_omp_depobj): Likewise.
* (cxx_pretty_printer::statement): Handle
2022-05-16 Martin Liska <>
* (depset::entity_kind_name): Use ARRAY_SIZE.
* (get_std_name_hint): Likewise.
* (cp_parser_new): Likewise.
2022-05-16 Marcel Vollweiler <>
* (tsubst_omp_clauses): Added OMP_CLAUSE_HAS_DEVICE_ADDR.
* (finish_omp_clauses): Added template decl processing.
2022-05-15 Jason Merrill <>
PR c++/100502
PR c++/58993
* (is_friend): Hidden friends count as members.
* (friend_accessible_p): Likewise.
2022-05-15 Jason Merrill <>
* (cp_parser_template_name): Look through
2022-05-15 Jason Merrill <>
PR c++/105589
PR c++/105191
PR c++/92385
* (build_value_init): Handle class in template.
2022-05-13 Nathan Sidwell <>
* (maybe_write_module): Check external linkage.
2022-05-13 Richard Biener <>
* Remove gimple-fold.h include.
2022-05-12 Patrick Palka <>
* cp-tree.h (TMPL_ARGS_LEVEL): Assert LEVEL is 1 when
* (try_class_unification): Correctly copy multidimensional
targs. Free the copy of targs.
(unify_pack_expansion): Fix level comparison.
2022-05-12 Nathan Sidwell <>
* (cp_parser_linkage_specification): Implement
global module attachment semantics.
2022-05-12 Jakub Jelinek <>
* (init_reswords): Register omp_all_memory as keyword
if flag_openmp.
* (cp_parser_primary_expression): Diagnose uses of
omp_all_memory in postfix expressions.
(cp_parser_omp_var_list_no_open): Handle omp_all_memory in depend
* (finish_omp_clauses): Handle omp_all_memory
keyword in depend clause as null_pointer_node, diagnose invalid
* (tsubst_omp_clause_decl): Pass through omp_all_memory.
2022-05-11 Patrick Palka <>
* (tsubst_parameter_mapping): Convert loop over
TREE_VEC into a range-based for loop using tree_vec_range.
* (iterative_hash_template_arg): Likewise.
(template_parms_level_to_args): Likewise.
(deducible_template_args): Likewise.
(check_undeduced_parms): Likewise.
(dependent_type_p_r): Likewise.
(value_dependent_expression_p) <case NONTYPE_ARGUMENT_PACK>:
(dependent_template_arg_p): Likewise.
* (cp_walk_subtrees) <case NONTYPE_ARGUMENT_PACK>:
2022-05-11 Jason Merrill <>
PR c++/105541
* cp-tree.h (TMPL_ARGS_DEPTH): 0 for null args.
* (cp_parser_enclosed_template_argument_list):
Use 0-length TREE_VEC for <>.
2022-05-11 Jason Merrill <>
PR bootstrap/105567
* (check_return_expr): Don't mess with ctor return value
while parsing a template.
2022-05-11 Nathan Sidwell <>
* cp-tree.h (DECL_MODULE_ATTACH_P): New.
(struct lang_decl_base): Add module_attach_p flag.
* (duplicate_decls): Rework module redeclaration
* (trees_out::lang_decl_bools): Write attach flag.
(trees_in::lang_decl_bools): ... and read it back.
(trees_out::decl_value): Rework module attachment handling.
(trees_in::decl_value): Rename local var to reflect meaning.
(trees_in::key_mergeable): Likewise.
(get_originating_module): Use DECL_MODULE_ATTACH_P. No need
to special-case mangling.
(module_may_redeclare): Reimplement.
(set_originating_module): Deal with attachment.
* (maybe_record_mergeable_decl): Deal with
(mergeable_namespace_slots): Likewise.
(do_nonmember_using_decl): Likewise.
* name-lookup.h (mergeable_namespace_slots): Adjust parm
* (cxx_print_decl): Adjust purview & attach printing.
2022-05-11 Martin Liska <>
PR target/105355
* lang-specs.h: Use Separate syntax.
2022-05-10 Patrick Palka <>
* (instantiate_coro_traits): Adjust accordingly.
* cp-tree.def: Remove mention of SET_PACK_EXPANSION_PATTERN.
* cp-tree.h (SET_PACK_EXPANSION_PATTERN): Remove.
* (trees_in::tree_node): Adjust accordingly.
* (make_char_string_pack): Likewise.
(make_string_pack): Likewise.
* (make_pack_expansion): Likewise.
(template_parm_to_arg): Likewise.
(coerce_template_parameter_pack): Likewise.
(extract_fnparm_pack): Likewise.
(extract_locals_r): Likewise.
(make_argument_pack): Likewise.
(tsubst_argument_pack): Likewise.
(lookup_init_capture_pack): Likewise.
(type_unification_real): Likewise.
(unify_pack_expansion): Likewise.
(tsubst_initializer_list): Likewise.
2022-05-10 Patrick Palka <>
* cp-tree.h (PACK_EXPANSION_CHECK): Define.
* (cp_parser_sizeof_pack): Check for error_mark_node
2022-05-10 Nathan Sidwell <>
* cp-tree.h (enum module_kind_bits): Disambiguate purview,
attach, named module vs header-unit.
(global_purview_p, not_module_p): Delete.
(named_module_p): New.
(header_module_p, module_purview_p): Adjust.
(module_attach_p, named_module_purview_p): New.
* (duplicate_decls): Adjust.
* (declare_module, preprocessed_module): Adjust.
* (init_global_partition): Adjust.
(get_fixed_binding_slot, pushdecl): Adjust.
* (cp_parser_module_declaration): Adjust.
(cp_parser_import_declaration, cp_parser_declaration): Adjust.
2022-05-10 Jason Merrill <>
PR c++/105529
* (maybe_return_this): Replace...
(finish_constructor_body, finish_destructor_body): ...these.
(finish_function_body): Call it.
* (build_delete_destructor_body): Call it.
* cp-tree.h (maybe_return_this): Declare.
2022-05-09 Marek Polacek <>
PR c++/103539
* (cp_parser_statement): Constify the in_compound parameter.
Create a modifiable copy. Allow labels at the end of compound
2022-05-09 Patrick Palka <>
PR c++/105491
* (field_in_pset): Adjust after next_initializable_field
(build_aggr_conv): Likewise.
(convert_like_internal): Likewise.
(type_has_extended_temps): Likewise.
* (default_init_uninitialized_part): Likewise.
(finish_struct): Likewise.
* (cx_check_missing_mem_inits): Likewise.
(reduced_constant_expression_p): Use next_subobject_field
* (get_source_location_impl_type): Adjust after
next_initializable_field renaming.
(fold_builtin_source_location): Likewise.
* cp-tree.h (next_initializable_field): Rename to ...
(next_aggregate_field): ... this.
(next_subobject_field): Declare.
* (next_aggregate_field): Renamed from ...
(next_initializable_field): ... this. Skip over vptr fields
(next_subobject_field): Define.
(reshape_init_class): Adjust after next_initializable_field
* (build_value_init_noctor): Likewise.
(emit_mem_initializers): Likewise.
* (build_capture_proxy): Likewise.
* (build_comparison_op): Likewise.
* (maybe_aggr_guide): Likewise.
* (structural_type_p): Likewise.
* (split_nonconstant_init_1): Likewise.
(digest_init_r): Likewise.
2022-05-09 Nathan Sidwell <>
* cp-tree.h (DECL_MODULE_KEYED_DECLS_P): Renamed from
(struct lane_decl_base): Rename module_attached_p to
(maybe_key_decl): Renamed from maybe_attach_decl.
* (record_lambda_scope): Adjust.
* (cxx_dup_lang_specific_decl): Adjust.
* (keyed_map_t, keyed_table): Renamed from attached_map_t,
(enum merge_kind): Rename MK_attached to MK_keyed.
(trees_out::lang_decl_bools): Adjust.
(trees_in::lang_decl_bools): Adjust.
(trees_in::decl_value): Adjust.
(trees_out::get_merge_kind): Adjust.
(trees_out::key_mergeable): Adjust.
(trees_in::key_mergeable): Adjust.
(maybe_key_decl): Rename from maybe_attach_decl.
(direct_import): Adjust.
(fini_modules): Adjust.
2022-05-09 Martin Liska <>
* (cp_genericize_r): Use {,UN}LIKELY
* (cp_finalize_omp_declare_simd): Likewise.
(cp_finalize_oacc_routine): Likewise.
2022-05-07 Marek Polacek <>
PR c++/101833
PR c++/47634
* (maybe_adjust_arg_pos_for_attribute): New.
2022-05-06 Jason Merrill <>
* (decl_to_string): Add show_color parameter.
(subst_to_string): Likewise.
(cp_printer): Pass it.
(type_to_string): Set pp_show_color.
(dump_function_name): Use "fnname" color.
(dump_template_bindings): Use "targs" color.
(struct colorize_guard): New.
(reinit_cxx_pp): Clear pp_show_color.
2022-05-06 Jason Merrill <>
PR c++/105245
PR c++/100111
* (cxx_eval_store_expression): Reorganize empty base
2022-05-05 Marek Polacek <>
PR c++/64679
* (cp_parser_parameter_declaration_clause): Maintain
a vector of parameters that haven't been pushed yet. Push them at the
end of a valid parameter-declaration-clause.
(cp_parser_parameter_declaration_list): Take a new auto_vec parameter.
Do not pushdecl while parsing tentatively when pushdecl-ing a parameter
would result in a hard error.
(cp_parser_cache_defarg): Adjust the call to
2022-05-05 Richard Biener <>
* (trees_in::core_vals): Remove separate allocation
2022-05-04 Jason Merrill <>
PR c++/104470
* (maybe_dependent_member_ref): Handle types.
(tsubst, tsubst_copy): Use it.
(tsubst_aggr_type, instantiate_alias_template): Don't handle
tf_dguide here.
2022-05-04 Patrick Palka <>
PR c++/105476
* (maybe_aggr_guide): Set processing_template_decl when
partially instantiating the guide's parameter list.
2022-05-04 Marek Polacek <>
PR c++/64679
* (cp_parser_init_declarator): Properly handle a series of
operator() calls, they are not part of an init-declarator.
2022-05-04 Jason Merrill <>
* (reshape_init): Shortcut already-reshaped init.
(reshape_init_class): Assert not getting one here.
2022-05-04 Jason Merrill <>
* (cp_print_error_function): Use %qD.
(function_category): Use %qD.
2022-05-04 Marek Polacek <>
PR c++/105436
* (cp_parser_next_token_ends_template_argument_p): Don't
return true for CPP_GREATER_EQ.
2022-05-04 Jason Merrill <>
* cp-tree.h (struct language_function): Remove x_cdtor_label.
(cdtor_label, LABEL_DECL_CDTOR): Remove.
* (returns): Don't check LABEL_DECL_CDTOR.
(cxx_eval_constant_expression): Don't call returns.
* (check_goto): Don't check cdtor_label.
(start_preparsed_function): And don't set it.
(finish_constructor_body, finish_destructor_body): Remove.
(finish_function_body): Don't call them.
* (check_return_expr): Handle cdtor_returns_this here.
* (finish_return_stmt): Not here.
2022-05-04 Jakub Jelinek <>
* Include decl.h.
(maybe_add_lambda_conv_op): Temporarily override deprecated_state to
2022-05-03 Patrick Palka <>
PR c++/105351
* cp-tree.h (finish_non_static_data_member): Add defaulted
complain parameter.
* (tsubst_copy_and_build): Pass complain to
* (finish_non_static_data_member): Respect complain
(finish_qualified_id_expr): Pass complain to
2022-05-02 Jason Merrill <>
* (tsubst_copy_and_build) [TEMPLATE_ID_EXPR]: Copy location.
(do_auto_deduction): Use expr location.
2022-05-02 Jason Merrill <>
* (maybe_note_name_used_in_class): Note in all enclosing
classes. Remember location of use.
(note_name_declared_in_class): Adjust.
2022-05-02 Marek Polacek <>
* cp-tree.h (uses_template_parms): Adjust declaration.
* (uses_template_parms): Return bool. Use a RAII sentinel.
2022-05-02 Richard Biener <>
* (fold_simple_1): Use CASE_CONVERT.
* (cp_fold): Likewise.
* (tsubst_copy): Likewise.
2022-04-29 Jason Merrill <>
PR c++/91618
PR c++/96604
* (do_friend): Call check_explicit_specialization here.
* (grokdeclarator): Not here.
* (check_classfn): Or here.
2022-04-29 Jason Merrill <>
PR c++/104470
* cp-tree.h (enum tsubst_flags): Add tf_dguide.
* (tsubst_aggr_type): Check it.
(tsubst_baselink, tsubst_copy): Check it.
(maybe_dependent_member_ref): Check it.
(instantiate_alias_template): Handle it.
(build_deduction_guide): Set it.
2022-04-29 Jason Merrill <>
PR c++/82980
* (type_deducible_expression_p): Allow more types.
2022-04-29 Jason Merrill <>
* (cp_finish_decl): Only consider auto for vars.
2022-04-29 Marek Polacek <>
PR c++/67048
* (cp_parser_enum_specifier): Warn about empty unnamed enum
only when it's followed by a semicolon.
2022-04-29 Jason Merrill <>
PR c++/80351
* (cp_finish_decl): Check completeness of deduced type.
2022-04-29 Jason Merrill <>
PR c++/102987
* (dump_decl) [USING_DECL]: Respect flags.
2022-04-29 Jason Merrill <>
* (dump_decl): Check TFF_UNQUALIFIED_NAME.
2022-04-29 Jakub Jelinek <>
PR c++/104319
* (cp_parser_template_argument): Treat >= like C++98 >>
after a type id by setting maybe_type_id and aborting tentative
(cp_parser_enclosed_template_argument_list): Handle
(cp_parser_next_token_ends_template_argument_p): Return true
2022-04-29 Iain Sandoe <>
PR c++/105426
* (register_local_var_uses): Allow promotion of unnamed
temporaries to coroutine frame copies.
2022-04-29 Jason Merrill <>
* (check_trait_type): Don't check completeness
of element type of array of unknown bound.
2022-04-29 Jason Merrill <>
PR c++/102651
PR c++/49387
* (get_tinfo_decl_direct): Don't complete_type.
(emit_tinfo_decl): Update tdesc type if needed.
2022-04-29 Zhao Wei Liew <>
PR c++/25689
* (extract_call_expr): Return a NULL_TREE on failure
instead of asserting.
(build_new_method_call): Suppress -Wparentheses diagnostic for
* (is_assignment_op_expr_p): Add function to check
if an expression is a call to an op= operator expression.
(maybe_convert_cond): Handle the case of a op= operator expression
for the -Wparentheses diagnostic.
2022-04-28 Patrick Palka <>
PR c++/105425
* (unify) <case TEMPLATE_PARM_INDEX>: Treat
DEPENDENT_OPERATOR_TYPE like an empty type.
2022-04-28 Iain Sandoe <>
PR c++/104051
* (coro_diagnose_throwing_final_aw_expr): Handle
non-target expression inputs.
2022-04-28 Iain Sandoe <>
PR c++/105301
* (coro_promise_type_found_p): Account for possible
mutliple overloads of the promise return_value() method.
2022-04-28 Iain Sandoe <>
PR c++/105287
* (maybe_promote_temps): Ensure generated temporaries
are added to the bind expr.
(add_var_to_bind): Fix local var naming to use portable punctuation.
(register_local_var_uses): Do not add synthetic names to unnamed
2022-04-28 Nathan Sidwell <>
Iain Sandoe <>
PR c++/103868
* (finish_co_await_expr): Do not process non-dependent
coroutine expressions at template definition time.
(finish_co_yield_expr): Likewise.
(finish_co_return_stmt): Likewise.
2022-04-28 Marek Polacek <>
PR c++/90107
* (cp_parser_class_specifier_1): Accept :: after a class
2022-04-27 Jason Merrill <>
* (strip_typedefs): Add default argument comments.
2022-04-27 Marek Polacek <>
PR c++/105398
* (uses_template_parms): Return false for any NAMESPACE_DECL.
2022-04-26 Jason Merrill <>
PR c++/102629
* (gen_elem_of_pack_expansion_instantiation): Clear
2022-04-26 Patrick Palka <>
PR c++/105386
* (finish_decltype_type): Pass tf_decltype to
2022-04-26 Jason Merrill <>
PR c++/104624
* (check_for_bare_parameter_packs): Check for lambda
function parameter pack.
2022-04-26 Patrick Palka <>
PR c++/105289
PR c++/86193
* (process_partial_specialization): Downgrade "partial
specialization isn't more specialized" diagnostic from permerror
to an on-by-default pedwarn.
(unify) <case TEMPLATE_PARM_INDEX>: When substituting into the
NTTP type a second time, use the original type not the
substituted type.
2022-04-25 Marek Polacek <>
PR c++/105353
* (build_x_shufflevector): Use
instantiation_dependent_expression_p except for the first two
2022-04-21 Marek Polacek <>
* (cxx_eval_logical_expression): Remove unused
(cxx_eval_constant_expression) <case TRUTH_ANDIF_EXPR>,
<case TRUTH_OR_EXPR>: Adjust calls to cxx_eval_logical_expression.
2022-04-21 Marek Polacek <>
PR c++/105321
* (cxx_eval_logical_expression): Always pass false for lval
to cxx_eval_constant_expression.
2022-04-20 Ed Catmur <>
PR c++/104996
* (compare_ics): When comparing list-initialization
sequences, do not return early.
2022-04-19 Jakub Jelinek <>
PR c++/105256
* (process_init_constructor_array,
process_init_constructor_record, process_init_constructor_union): Move
containing CONSTRUCTOR.
2022-04-15 Marek Polacek <>
PR c++/105268
* (cp_parser_placeholder_type_specifier): Return
error_mark_node when trying to build up a constrained parameter in
a default argument.
2022-04-15 Jason Merrill <>
PR c++/102804
* (grokdeclarator): Drop typedef used with 'unsigned'.
2022-04-15 Jason Merrill <>
PR c++/102987
* (dump_expr): Handle USING_DECL.
[VIEW_CONVERT_EXPR]: Just look through location wrapper.
2022-04-14 Jason Merrill <>
PR c++/104646
* (maybe_save_constexpr_fundef): Don't do extra
checks for defaulted ctors.
2022-04-14 Jason Merrill <>
PR c++/82980
* (type_deducible_expression_p): New.
(lambda_capture_field_type): Check it.
2022-04-14 Jason Merrill <>
PR c++/65211
* (tsubst_decl) [TYPE_DECL]: Copy TYPE_ALIGN.
2022-04-14 Jason Merrill <>
PR c++/97219
* (dependent_local_decl_p): New.
* cp-tree.h (dependent_local_decl_p): Declare.
* (finish_call_expr): Use it.
* (tsubst_arg_types): Also substitute default args
for local externs.
2022-04-14 Jason Merrill <>
PR c++/101698
* (tsubst_baselink): Also check dependent optype.
2022-04-14 Jason Merrill <>
PR c++/101442
* (cp_finish_decl): Don't pass decl to push_cleanup.
* (perform_member_init): Likewise.
* (push_cleanup): Adjust comment.
2022-04-13 Jason Merrill <>
PR c++/105245
PR c++/100111
* (cxx_eval_store_expression): Build a CONSTRUCTOR
as needed in empty base handling.
2022-04-13 Jakub Jelinek <>
PR c++/105233
* (cp_check_const_attributes): For aligned attribute
pass manifestly_const_eval=true to fold_non_dependent_expr.
2022-04-13 Marek Polacek <>
PR c++/97296
* (direct_reference_binding): strip_top_quals when creating
a ck_qual.
2022-04-12 Jason Merrill <>
PR c++/104669
* (decls_match): Compare versions even if not recording.
(duplicate_decls): Propagate attributes to alias.
* (find_last_decl): Give up if versioned.
2022-04-12 Jason Merrill <>
PR c++/102071
* (build_new_1): Check array_p for alignment.
2022-04-12 Patrick Palka <>
PR c++/103105
* (build_extra_args): Call preserve_args.
2022-04-12 Jason Merrill <>
PR c++/104142
* (check_initializer): Check TREE_SIDE_EFFECTS.
2022-04-12 Jason Merrill <>
PR c++/105223
PR c++/92918
* (finish_struct): Always using op=.
2022-04-11 Jason Merrill <>
PR c++/98249
* (build_operator_new_call): Just look in ::.
2022-04-11 Alexandre Oliva <>
* (cxx_eval_call_expression): Disregard dtor
2022-04-11 Alexandre Oliva <>
* (set_cleanup_locs): Propagate locus to call
wrapped in cast-to-void.
2022-04-11 Jason Merrill <>
PR c++/100370
* (warn_placement_new_too_small): Check deref.
2022-04-09 Jason Merrill <>
PR c++/105191
PR c++/92385
* (build_vec_init_elt): Do {}-init for aggregates.
* (cxx_eval_vec_init): Only treat {} as value-init
for non-aggregate types.
(build_vec_init_expr): Also check constancy of explicit
initializer elements.
2022-04-09 Jason Merrill <>
PR c++/91618
PR c++/96604
* (set_decl_namespace): Set
DECL_IMPLICIT_INSTANTIATION if no non-template match.
* (check_explicit_specialization): Check it.
* (check_classfn): Call it.
2022-04-07 Patrick Palka <>
PR c++/99479
* (name_lookup::using_queue): Change to an
auto_vec (with 16 elements of internal storage).
(name_lookup::queue_namespace): Change return type to void,
take queue parameter by reference and adjust function body
(name_lookup::do_queue_usings): Inline into ...
(name_lookup::queue_usings): ... here. As in queue_namespace.
(name_lookup::search_unqualified): Don't make queue static,
remove length variable, and adjust function body accordingly.
2022-04-07 Jakub Jelinek <>
PR tree-optimization/102586
* cp-objcp-common.h (cp_classtype_as_base): Declare.
* (cp_classtype_as_base): New function.
2022-04-07 Jason Merrill <>
PR c++/101051
* (grokdeclarator): Reject conversion with trailing return
2022-04-07 Jason Merrill <>
PR c++/101717
* (lambda_expr_this_capture): Check all enclosing
lambdas for completeness.
2022-04-07 Jason Merrill <>
PR c++/105187
* (store_init_value): Allow TREE_HAS_CONSTRUCTOR for
2022-04-06 Jakub Jelinek <>
PR c++/104668
* (splice_template_attributes): Return NULL if *p is
(cplus_decl_attributes): Return early if attributes is
error_mark_node. Don't check that later.
2022-04-06 Patrick Palka <>
PR c++/105143
* (do_class_deduction): Check complain before attempting
to issue a -Wctad-maybe-unsupported warning.
2022-04-06 Jason Merrill <>
PR c++/104702
* (build_vec_init): Use a reference for the result.
2022-04-06 Jason Merrill <>
PR c++/100608
* (check_local_shadow): Use -Wshadow=local
if exactly one of 'old' and 'decl' is a type.
2022-04-05 Jason Merrill <>
PR c++/103852
DR 1286
* (do_class_deduction): Pedwarn for renaming alias in C++17.
2022-04-05 Jason Merrill <>
PR c++/101677
* name-lookup.h (struct cp_binding_level): Add requires_expression
* (cp_parser_requires_expression): Set it.
(synthesize_implicit_template_parm): Check it.
2022-04-04 Jason Merrill <>
PR c++/101894
* (duplicate_decls): Copy DECL_FRIEND_CONTEXT.
2022-04-04 Jason Merrill <>
PR c++/103852
DR 1286
* (get_underlying_template): Compare default template args.
2022-04-03 Benno Evers <>
Iain Sandoe <>
PR c++/103328
* (morph_fn_to_coro): Reset
2022-04-01 Jason Merrill <>
2022-03-31 Jason Merrill <>
PR c++/96645
* (cp_parser_early_parsing_nsdmi): New.
(cp_parser_member_declaration): Call it.
2022-04-01 Jason Merrill <>
2022-03-24 Jason Merrill <>
PR c++/96645
* cp-tree.h (type_has_default_ctor_to_be_synthesized): Declare.
* (type_has_default_ctor_to_be_synthesized): New.
(type_has_non_user_provided_default_constructor_1): Support it.
(type_has_non_user_provided_default_constructor): Now a wrapper.
* (complain_about_unparsed_dmi): New.
(constructible_expr): Call it.
2022-04-01 Patrick Palka <>
PR c++/105110
* (unify) <case TEMPLATE_PARM_INDEX>: Drop cv-quals from
the argument type of an NTTP before deducing from it.
2022-03-31 Jason Merrill <>
PR c++/96645
* (cp_parser_early_parsing_nsdmi): New.
(cp_parser_member_declaration): Call it.
2022-03-30 Patrick Palka <>
PR c++/100474
* (diagnose_trait_expr): Handle all remaining
traits appropriately. Remove default case.
2022-03-30 Marek Polacek <>
PR c++/93280
PR c++/104583
* (get_nsdmi): Set TARGET_EXPR_DIRECT_INIT_P to in_ctor.
2022-03-30 Jakub Jelinek <>
PR c++/105092
* (tsubst_omp_clause_decl): When handling iterators, set
DECL_CONTEXT of the iterator var to current_function_decl and
call pushdecl.
2022-03-30 Jakub Jelinek <>
PR c++/105061
* (cp_parser_template_introduction): If member_p, temporarily
clear parser->colon_corrects_to_scope_p around tentative parsing of
nested name specifier.
2022-03-28 Jason Merrill <>
* (determine_specialization): Add comment.
2022-03-28 Patrick Palka <>
PR c++/105067
* (finish_concept_definition): Check that a concept is
declared with exactly one template parameter list.
2022-03-28 Patrick Palka <>
PR c++/105064
* (maybe_substitute_reqs_for): Don't assume
DECL_TEMPLATE_INFO is available.
2022-03-28 Jason Merrill <>
PR c++/105003
PR c++/104008
PR c++/102869
* (complex_alias_template_r): walk_tree callback, replacing
uses_all_template_parms_r, complex_pack_expansion_r.
(complex_alias_template_p): Adjust.
* (strip_typedefs): Revert r12-7710 change.
2022-03-28 Jason Merrill <>
PR c++/102071
* (build_new_1): Include cookie in alignment. Omit
constexpr wrapper from alloc_call.
2022-03-28 Jason Merrill <>
PR c++/103291
* (push_local_extern_decl_alias): Call
2022-03-28 Jason Merrill <>
PR c++/102123
* (tsubst_copy): Use make_unbound_class_template for rewriting
a type template reference.
2022-03-28 Jason Merrill <>
PR c++/103968
* (value_dependent_expression_p): Check
has_value_dependent_address for conversion to reference.
2022-03-28 Jason Merrill <>
PR c++/103943
* (tsubst_qualified_id): Handle getting SCOPE_REF from
(instantiation_dependent_scope_ref_p): Check dependent_scope_p.
2022-03-28 Jason Merrill <>
PR c++/102045
* (make_base_init_ok): Call make_used.
2022-03-28 Jason Merrill <>
PR c++/104847
* (write_expression): Don't write a union designator when
2022-03-28 Jason Merrill <>
PR c++/99445
PR c++/103769
* (strip_typedefs): Use build_distinct_type_copy.
2022-03-26 Patrick Palka <>
PR c++/105050
* (potential_constant_expression_1) <case IF_STMT>:
Clarify error message when a if-stmt is non-constant because its
branches are non-constant.
2022-03-26 Patrick Palka <>
PR c++/103455
* (add_builtin_candidate) <case MEMBER_REF>: Test
2022-03-26 Jakub Jelinek <>
* (cp_parser_postfix_expression)
return cp_build_{vec,convert,bit_cast} result right away, instead
set postfix_expression to it and break.
2022-03-25 Marek Polacek <>
PR c++/104944
* (cxx_sizeof_or_alignof_type): Diagnose alignof(void).
(cxx_alignas_expr): Call cxx_sizeof_or_alignof_type with
complain == true.
2022-03-24 Marek Polacek <>
PR c++/104284
* (check_initializer): Don't call build_aggr_init in
a template.
2022-03-24 Jason Merrill <>
PR c++/96645
* cp-tree.h (type_has_default_ctor_to_be_synthesized): Declare.
* (type_has_default_ctor_to_be_synthesized): New.
(type_has_non_user_provided_default_constructor_1): Support it.
(type_has_non_user_provided_default_constructor): Now a wrapper.
* (complain_about_unparsed_dmi): New.
(constructible_expr): Call it.
2022-03-24 Marek Polacek <>
PR c++/102990
* (massage_init_elt): Avoid folding CONSTRUCTORs.
2022-03-24 Patrick Palka <>
PR c++/104620
* (build_over_call): Use cxx_constant_value_sfinae
instead of cxx_constant_value to evaluate a consteval call.
* (cxx_constant_value_sfinae): Add decl parameter
and pass it to cxx_eval_outermost_constant_expr.
* cp-tree.h (cxx_constant_value_sfinae): Add decl parameter.
* (fold_targs_r): Pass NULL_TREE as decl parameter to
2022-03-24 Jakub Jelinek <>
PR c++/104994
* (cxx_eval_constant_expression): Don't diagnose passing
through extern thread_local declarations. Change wording from
declaration to definition.
(potential_constant_expression_1): Don't diagnose extern thread_local
declarations. Change wording from declared to defined.
* (start_decl): Likewise.
2022-03-23 Jason Merrill <>
PR c++/103337
* (reshape_single_init): New.
(reshape_init_class): Use it.
2022-03-23 Jason Merrill <>
PR c++/105006
* (lookup_using_decl): Check that scope is
a dependent type before looking for dependent using.
2022-03-23 Jason Merrill <>
PR c++/105006
* (lookup_using_decl): Set DECL_DEPENDENT_P if lookup
finds a dependent using.
2022-03-21 Jason Merrill <>
PR c++/58646
* (build_vec_init): Check for vla element type.
2022-03-21 Jason Merrill <>
PR c++/103337
PR c++/102740
PR c++/103299
PR c++/102538
* (reshape_init_class): Avoid looking for designator
after we found it.
(reshape_init_r): Keep looking for designator.
2022-03-21 Jason Merrill <>
PR c++/101767
* (reshape_init_class): Back out of anon struct
if a designator doesn't match.
2022-03-18 Jason Merrill <>
PR c++/92918
PR c++/104476
* (add_method): Avoid adding the same used function twice.
(handle_using_decl): Don't add_method.
(finish_struct): Don't using op= if we have one already.
(maybe_push_used_methods): New.
* (finish_member_declaration): Call it.
* (diagnose_name_conflict): No longer static.
(push_class_level_binding): Revert 92918 patch, limit
to dependent using.
* cp-tree.h: Adjust.
2022-03-18 Jakub Jelinek <>
PR c++/104568
* (build_new_constexpr_heap_type): Remove FULL_SIZE
argument and its handling, instead add ITYPE2 argument. Only
support COOKIE_SIZE != NULL.
(build_new_1): If size is 0, change it to 0 * outer_nelts if
outer_nelts is non-NULL. Pass type rather than elt_type to
* (build_new_constexpr_heap_type): New function.
(cxx_eval_constant_expression) <case CONVERT_EXPR>:
If elt_size is zero sized type, try to recover outer_nelts from
the size argument to operator new/new[] and pass that as
arg_size to build_new_constexpr_heap_type. Pass ctx,
non_constant_p and overflow_p to that call too.
2022-03-18 Marek Polacek <>
PR c++/104008
* (strip_typedefs): Don't strip an alias template when
doing so would result in losing a parameter pack.
2022-03-16 Patrick Palka <>
* (lookup_member): Simplify by handling all values
of protect together in the ambiguous case. Don't modify protect.
2022-03-16 Patrick Palka <>
PR c++/96780
* (cp_fold) <case CALL_EXPR>: Fold calls to
std::move/forward and other cast-like functions into simple
2022-03-15 Patrick Palka <>
PR c++/103177
* (lookup_field_info::errstr): Remove this data
(lookup_field_r): Don't set errstr.
(lookup_member): Check ambiguity before checking access.
Simplify accordingly after errstr removal. Exit early upon
error or empty result.
2022-03-15 Jakub Jelinek <>
PR c++/104623
* (cp_parser_skip_to_pragma_eol): Don't purge any tokens.
2022-03-14 Jakub Jelinek <>
PR tree-optimization/102586
* (build_cxx_call): Diagnose __builtin_clear_padding where
first argument's type is pointer to non-trivially-copyable type unless
it is address of a variable or parameter.
2022-03-12 Patrick Palka <>
PR c++/104641
* cp-tree.h (tsubst_flags::tf_tst_ok): New flag.
* (make_typename_type): Allow a typename-specifier to
resolve to a template when tf_tst_ok, in which case return
a CTAD placeholder for the template.
* (tsubst_decl) <case VAR_DECL>: Set tf_tst_ok when
substituting the type.
(tsubst): Clear tf_tst_ok and remember if it was set.
<case TYPENAME_TYPE>: Pass tf_tst_ok to make_typename_type
(tsubst_copy) <case CAST_EXPR>: Set tf_tst_ok when substituting
the type.
(tsubst_copy_and_build) <case CAST_EXPR>: Likewise.
<case CONSTRUCTOR>: Likewise.
2022-03-12 Patrick Palka <>
PR c++/104622
* (missing_conversion_p): Define.
(add_candidates): Use it.
* (check_non_deducible_conversion): Change type of strict
parameter to unification_kind_t and directly test for DEDUCE_CALL.
2022-03-12 Patrick Palka <>
PR c++/104527
* (normalize_atom): Set
(get_mapped_args): Make static, adjust parameters. Always
return a vector whose depth corresponds to the template depth of
the context of the atomic constraint expression. Micro-optimize
by passing false as exact to safe_grow_cleared and by collapsing
a multi-level depth-one argument vector.
(satisfy_atom): Adjust call to get_mapped_args and
(diagnose_atomic_constraint): Replace map parameter with an args
(get_mapped_args): Remove declaration.
2022-03-12 Patrick Palka <>
Jason Merrill <>
PR c++/98644
* (mark_non_constant): Define, split out from ...
(cxx_eval_outermost_constant_expr): ... here.
(maybe_constant_value): Use it.
2022-03-12 Patrick Palka <>
* (finish_unary_fold_expr): Use input_location
(finish_binary_fold_expr): Likewise.
2022-03-12 Thomas Schwinge <>
PR other/65095
* (handle_omp_array_sections_1)
(cp_oacc_check_attachments): Call 'user_omp_clause_code_name'
instead of 'c_omp_map_clause_name'.
2022-03-10 Marek Polacek <>
PR c++/104608
* (cp_parser_template_name): Repeat lookup of
2022-03-10 Marek Polacek <>
PR c++/104752
* (finish_compound_literal): Disallow auto{x} for
* (build_functional_cast_1): Likewise.
2022-03-10 Marek Polacek <>
PR c++/104846
* (grokdeclarator): Check FUNC_OR_METHOD_TYPE_P before giving
data member errors.
2022-03-10 Jakub Jelinek <>
PR c++/103460
* (grok_op_properties): Allow variadic operator[] for
2022-03-10 Roger Sayle <>
PR c++/95999
* (finish_enum_value_list): If VALUE isn't an INTEGER_CST
consider it to be zero (i.e. treat it like error_mark_node).
(build_enumerator): Likewise, if PREV_VALUE isn't an INTEGER_CST,
set VALUE to error_mark_node.
2022-03-10 Roger Sayle <>
PR c++/39751
* (cp_parser_late_parsing_for_member): Confirm the token
stream hasn't been purged before processing DECL_PENDING_INLINE.
2022-03-09 Patrick Palka <>
PR c++/104823
* (build_noexcept_spec): Strengthen dependence check
to instantiation_dependent_expression_p.
* (cp_parser_parenthesized_expression_list_elt):
Remove fold_expr_p parameter, and don't call
(cp_parser_parenthesized_expression_list): Adjust accordingly.
* (expand_integer_pack): Strengthen dependence check
to instantiation_dependent_expression_p.
(instantiate_non_dependent_expr_internal): Adjust comment.
(instantiate_non_dependent_expr_sfinae): Likewise. Drop
the potentially-constant check, and relax and turn the
dependence check into a checking assert.
(instantiate_non_dependent_or_null): Adjust comment.
* (finish_decltype_type): Keep
processing_template_decl cleared after calling
2022-03-09 Patrick Palka <>
PR c++/102137
PR c++/87820
* cp-tree.h (is_copy_initialization): Declare.
* (cp_finish_decl): Set LOOKUP_ONLYCONVERTING
when is_copy_initialization is true.
* (build_aggr_init): Split out copy-initialization
check into ...
(is_copy_initialization): ... here.
* (instantiate_decl): Pass 0 instead of
LOOKUP_ONLYCONVERTING as flags to cp_finish_decl.
2022-03-09 Patrick Palka <>
PR c++/65396
* cp-tree.h (merge_default_template_args): Declare.
* (merge_default_template_args): Define, factored out
from redeclare_class_template.
(duplicate_decls): Use it when merging member function template
and free function declarations.
* (redeclare_class_template): Factor out default argument
merging logic into merge_default_template_args. Improve location
of a note when there's a template parameter kind mismatch.
2022-03-09 Jakub Jelinek <>
PR c/104711
* (cxx_eval_check_shift_p): Use TYPE_OVERFLOW_WRAPS
instead of TYPE_UNSIGNED.
* (cp_build_binary_op): Don't emit
-Wshift-negative-value warning if TYPE_OVERFLOW_WRAPS.
2022-03-08 Roger Sayle <>
PR c++/96440
* (start_decl): Defend against prefix_attributes being
2022-03-08 Roger Sayle <>
PR c++/96437
* (synthesize_implicit_template_parm): Check that
TREE_VALUE (new_parm) isn't error_mark_node before setting its
2022-03-08 Roger Sayle <>
PR c++/96329
* (cp_parser_linkage_specification): Treat the case where
linkage is error_mark_node as "invalid linkage-specification".
2022-03-08 Marek Polacek <>
PR c++/104108
* (convert_nontype_argument): Recompute
value_dependent_expression_p after build_converted_constant_expr.
2022-03-08 Marek Polacek <>
* (is_late_template_attribute): Do not defer attribute
* (tsubst_enum): Set TREE_UNAVAILABLE.
2022-03-08 Jakub Jelinek <>
PR c++/104806
* (lookup_field_fuzzy_info::fuzzy_lookup_field): Ignore
identifiers with space at the end.
2022-03-07 Jason Merrill <>
PR c++/104618
* (mark_single_function): Look through parens and location
* (cp_build_addr_expr_1): Not here.
2022-03-07 Jakub Jelinek <>
* (cp_parser_omp_clause_map): Add missing space in string
2022-03-07 Jakub Jelinek <>
* Fix up duplicated word issue in a comment.
* Likewise.
* Likewise.
* Likewise.
2022-03-04 Nathan Sidwell <>
* (is_std_substitution): Check global module.
(is_std_substitution_char): Return bool.
2022-03-04 Nathan Sidwell <>
* cp-tree.h (mangle_identifier): Replace with ...
(mangle_module_component): ... this.
* (dump_substitution_candidates): Adjust.
(add_substitution): Likewise.
(find_substitution): Likewise.
(unmangled_name_p): Likewise.
(mangle_module_substitution): Reimplement.
(mangle_module_component): New.
(write_module, maybe_write_module): Adjust.
(write_name): Drop modules here.
(write_unqualified): Do them here instead.
(mangle_global_init): Adjust.
* (module_state::mangle): Adjust.
(mangle_module): Likewise.
(get_originating_module): Adjust.
2022-02-28 Marek Polacek <>
PR c++/104682
* cp-tree.h (build_enumerator): Adjust.
* (finish_enum): Make it return the new decl.
* (tsubst_enum): Propagate TREE_DEPRECATED and TREE_UNAVAILABLE.
2022-02-28 Marek Polacek <>
PR c++/104667
* (is_late_template_attribute): Cope with a decl without
a type.
2022-02-27 Jason Merrill <>
PR c++/104618
* (cp_build_addr_expr_1): Also
2022-02-24 Martin Liska <>
* (defarg_insts_for): Use braces for subobject.
2022-02-18 Patrick Palka <>
PR c++/94944
* (maybe_instantiate_noexcept): For non-static member
functions, set current_class_ptr/ref to the specialized 'this'
2022-02-17 Jason Merrill <>
PR c++/104539
* (mark_decl_instantiated): Don't clear DECL_COMDAT.
2022-02-17 Jason Merrill <>
PR c++/90451
* (mark_single_function): New.
* cp-tree.h: Declare it.
* (cp_build_addr_expr_1): mark_used when making a PMF.
* (finish_qualified_id_expr): Not here.
(finish_id_expression_1): Or here.
(finish_decltype_type): Call mark_single_function.
* (convert_to_void): And here.
* (convert_nontype_argument): And here.
* (build_offset_ref): Adjust assert.
2022-02-17 Patrick Palka <>
PR c++/104565
* (finish_compound_literal): Don't perform
non-dependent expr folding before calling check_narrowing.
2022-02-16 Patrick Palka <>
PR c++/104507
* (potential_constant_expression_1)
<case NON_DEPENDENT_EXPR>: Return false instead of recursing.
Assert tf_error isn't set.
2022-02-15 Jason Merrill <>
PR c++/104107
PR c++/95036
* (coerce_template_template_parms): Take full parms.
Avoid adding too much of outer_args.
(coerce_template_template_parm): Adjust.
(template_template_parm_bindings_ok_p): Adjust.
(convert_template_argument): Adjust.
2022-02-14 Jakub Jelinek <>
PR c++/104513
* (potential_constant_expression_1) <case GOTO_EXPR>:
Don't punt if returns (target).
2022-02-11 Jakub Jelinek <>
PR c++/104472
* (cxx_eval_internal_function) <case IFN_VEC_CONVERT>:
Only return fold_const_call result if it is non-NULL. Otherwise
fall through into the default: case to return t, set *non_constant_p
and emit diagnostics if needed.
2022-02-10 Jason Merrill <>
* (depset::hash::add_specializations): Use
2022-02-10 Tobias Burnus <>
PR c++/102204
* (cp_omp_mappable_type_1): Remove check for virtual
members as those are permitted since OpenMP 5.0.
2022-02-10 Patrick Palka <>
* (filter_memfn_lookup): Handle dependent USING_DECL
2022-02-10 Marcel Vollweiler <>
* (cp_parser_omp_clause_name): Parse 'has_device_addr' clause.
(cp_parser_omp_var_list_no_open): Handle array sections.
(cp_parser_omp_all_clauses): Added PRAGMA_OMP_CLAUSE_HAS_DEVICE_ADDR
(cp_parser_omp_target_update): Added HAS_DEVICE_ADDR to OMP_CLAUSE_MASK.
* (handle_omp_array_sections): Handle clause restrictions.
(finish_omp_clauses): Handle array sections.
2022-02-09 Patrick Palka <>
PR c++/104432
* (build_new_method_call): When a non-dependent call
resolves to a specialization of a member template, always build
the pruned overload set using the member template, not the
* (filter_memfn_lookup): New parameter newtype. Simplify
and correct how members from the new lookup set are matched to
those from the old one.
(tsubst_baselink): Pass binfo_type as newtype to
2022-02-09 Jason Merrill <>
PR c++/103752
* (trees_out::core_vals): Stream explicit specifier.
(trees_in::core_vals): Likewise.
* (store_explicit_specifier): No longer static.
(tsubst_function_decl): Clear DECL_HAS_DEPENDENT_EXPLICIT_SPEC_P.
* cp-tree.h (lookup_explicit_specifier): Declare.
2022-02-09 Jason Merrill <>
PR c++/96876
* (split_nonconstant_init_1): Push cleanups for
preceding members with constant initialization.
(maybe_push_temp_cleanup): Do nothing if -fno-exceptions.
2022-02-08 Jakub Jelinek <>
PR c++/104379
* (check_local_shadow): When diagnosing shadowing
of a member or global declaration, add warning suppression for
the decl and don't warn again on it.
2022-02-08 Jakub Jelinek <>
PR c++/104403
* (cxx_eval_constant_expression): Don't assert DECL_EXPRs
of TREE_STATIC vars may only appear in -std=c++23.
2022-02-08 Patrick Palka <>
PR c++/80951
* (uses_deducible_template_parms): Consider the
noexcept-spec of a function type.
2022-02-08 Patrick Palka <>
PR c++/104410
* (satisfaction_value): Relax assert to accept
cv-qualified bool.
2022-02-08 Patrick Palka <>
PR c++/103706
* (preserve_args): New function.
(tsubst_lambda_expr): Use it when setting LAMBDA_EXPR_REGEN_INFO.
2022-02-08 Patrick Palka <>
PR c++/103706
* (satisfy_declaration_constraints): Use
lambda_regenerating_args instead.
* cp-tree.h (lambda_regenerating_args): Declare.
* (lambda_regenerating_args): Define, split out from
(do_auto_deduction): Use lambda_regenerating_args to obtain the
full set of outer template arguments for satisfaction when
inside a lambda.
2022-02-06 Patrick Palka <>
PR c++/96242
* (mark_used): Directly synthesize a DECL_MAYBE_DELETED
fn by calling maybe_synthesize_method instead of relying on
maybe_instantiate_noexcept. Move call to m_i_n after the
* (maybe_instantiate_noexcept): Restrict DECL_MAYBE_DELETED
fn synthesis to only those with an implicit noexcept-spec, and
return !DECL_DELETED_FN instead of !DECL_MAYBE_DELETED afterwards.
2022-02-06 Jakub Jelinek <>
PR c++/89074
PR c++/104033
* (cxx_eval_binary_expression): Temporarily set
2022-02-05 Jason Merrill <>
PR c++/104300
PR c++/92385
* cp-tree.h (get_vec_init_expr): New.
(target_expr_needs_replace): New.
* (cp_gimplify_init_expr): Use it.
(struct cp_fold_data): New.
(cp_fold_r): Only genericize inits at end of fn.
(cp_fold_function): Here.
(cp_fully_fold_init): Not here.
* (build_vec_init): Use get_vec_init_expr.
* (build_vec_init_expr): Likewise.
* (split_nonconstant_init_1): Likewise.
(process_init_constructor): Wrap VEC_INIT_EXPR in
2022-02-05 Jason Merrill <>
* (iterative_hash_template_arg): Add comment.
2022-02-03 Patrick Palka <>
PR c++/104079
* (value_dependent_noexcept_spec_p): New predicate split
out from ...
(dependent_type_p_r): ... here.
(instantiation_dependent_r): Use value_dependent_noexcept_spec_p
to consider dependence of a noexcept-spec before C++17.
* (fixup_deferred_exception_variants): Clear
2022-02-03 Jason Merrill <>
PR c++/104302
* (maybe_deduce_size_from_array_init): Give up
on type-dependent init.
(cp_complete_array_type): Only call reshape_init for character
2022-02-01 Jason Merrill <>
PR c++/103186
* (defarg_inst): Use tree_vec_map_cache_hasher.
(defarg_insts_for): New.
(tsubst_default_argument): Adjust.
2022-01-31 Marek Polacek <>
PR c++/102414
PR c++/101874
* (create_array_type_for_decl): Use template_placeholder_p.
Sorry on a variable-length array of auto.
2022-01-31 Marek Polacek <>
PR c++/102434
* (finish_struct): Don't allow union initializer_list.
2022-01-31 Patrick Palka <>
PR c++/104294
* (ctor_deduction_guides_for): Correct computation of
2022-01-31 Patrick Palka <>
PR c++/104291
* (for_each_template_parm_r) <case CONSTRUCTOR>: Clear
walk_subtrees if !include_nondeduced_p. Simplify given that
cp_walk_subtrees already walks TYPE_PTRMEMFUNC_FN_TYPE_RAW.
2022-01-28 Patrick Palka <>
Jason Merrill <>
PR c++/92752
* (build_ptrmemfunc): Cast a nullptr constant to the
unqualified pointer type not the qualified one.
2022-01-28 Patrick Palka <>
PR c++/103341
* (cp_finish_decl): Pass the template arguments of a
variable template specialization or a templated static data
member to do_auto_deduction when the auto is constrained.
2022-01-28 Jason Merrill <>
PR c++/100198
PR c++/100030
PR c++/100282
* (cp_parser_enumerator_definition): Sorry on parameter
pack in lambda.
(cp_parser_class_head): And in class attributes.
* (check_for_bare_parameter_packs): Sorry instead of error
in lambda.
2022-01-27 Jason Merrill <>
PR c++/104245
PR c++/51344
* (save_template_attributes): Take late attrs as parm.
(cplus_decl_attributes): Call it after decl_attributes,
splice_template_attributes before.
2022-01-27 Patrick Palka <>
PR c++/99895
* (build_over_call): For a non-dependent member call,
build up a CALL_EXPR using a COMPONENT_REF callee, as in
* (build_non_dependent_expr): Don't wrap PARM_DECL either.
* (build_min_non_dep_op_overload): Adjust accordingly
after the build_over_call change.
2022-01-27 Patrick Palka <>
PR c++/92944
PR c++/103678
* (cp_parser_class_head): Update 'type' with the result
of maybe_process_partial_specialization in the
nested_name_specifier branch. Refactor nearby code to accomodate
that maybe_process_partial_specialization returns a _TYPE, not a
TYPE_DECL, and eliminate local variable 'class_type' in passing.
2022-01-27 Marek Polacek <>
PR c++/101988
* (create_array_type_for_decl): Reject forming an array of
placeholder for a deduced class type.
2022-01-26 Jason Merrill <>
PR c++/104206
PR c++/101072
* (finish_compound_literal): Restore VECTOR_TYPE check.
2022-01-26 Jakub Jelinek <>
PR c++/104226
* (init_subob_ctx): For vector ctors containing
vector elements, ensure appending to the same ctor instead of
creating another one.
2022-01-26 Marek Polacek <>
PR target/104213
* (finish_constructor_body): Suppress -Wuse-after-free.
(finish_destructor_body): Likewise.
* (build_delete_destructor_body): Likewise.
2022-01-26 Jason Merrill <>
PR c++/104235
* (cp_parser_template_name): Repeat lookup of USING_DECL.
2022-01-26 Jason Merrill <>
PR c++/103057
* (tsubst_aggr_type): Call tsubst for alias template
2022-01-25 Patrick Palka <>
PR c++/101532
PR c++/104225
* (mark_used): Don't consider maybe_instantiate_noexcept
on a deleted function.
2022-01-25 Jason Merrill <>
PR c++/59950
* (build_over_call): Use cp_build_indirect_ref.
2022-01-24 Patrick Palka <>
PR c++/104197
* (make_auto_1): Use -1 as a placeholder default argument
for level.
2022-01-24 Patrick Palka <>
PR c++/104173
* (build_class_member_access_expr): Extend
unary_complex_lvalue result adjustment to preserve all
rvalues, not just xvalues.
2022-01-23 Will Wray <>
PR c++/55227
* (reshape_init_r): Only call has_designator_check when
first_initializer_p or for the inner constructor element.
(cp_complete_array_type): Call reshape_init on braced-init-list.
2022-01-23 Jason Merrill <>
PR c++/104182
* (cp_genericize_target_expr): Make sure nothing
has set DECL_INITIAL on a TARGET_EXPR slot.
* (is_local_temp): Don't check DECL_CONTEXT.
2022-01-23 Jason Merrill <>
PR c++/101072
* cp-tree.h (build_implicit_conv_flags): Declare.
* (build_implicit_conv_flags): Split out from...
* (check_initializer): Use it.
* (tsubst_copy_and_build): Remove TARGET_EXPR handling.
* (finish_compound_literal): Don't treat
scalar values like CONSTRUCTORs.
2022-01-21 Jason Merrill <>
* (find_failing_clause): Return expr if not
(finish_static_assert): Show constant values in failing
2022-01-21 Jason Merrill <>
PR c++/104084
PR c++/20040
* (build_new_1): Only pull out TARGET_EXPR_INITIAL if
alloc_expr is a TARGET_EXPR.
2022-01-21 Marek Polacek <>
PR c++/101715
* (fixup_deferred_exception_variants): Remove duplicate
variants after parsing the exception specifications.
2022-01-21 Jason Merrill <>
PR c++/104139
PR c++/103681
* (end_of_class): Use base_binfo.
2022-01-20 Jason Merrill <>
PR c++/101405
* (reshape_init_class): Reject designator for a member of
another class.
2022-01-20 Patrick Palka <>
PR c++/91911
PR c++/103672
* (keep_template_parm): Punt on a level 0 template parm.
(tsubst_decl) <case VAR_DECL>: Remove !CHECKING_P safeguard.
(tsubst) <case TEMPLATE_TYPE_PARM>: Handle CTAD placeholders
(make_auto_1): Add defaulted 'level' parameter.
(make_template_placeholder): Pass 0 as 'level' to make_auto_1.
2022-01-20 Patrick Palka <>
* (grokdeclarator): Diagnose a CTAD placeholder as
function return type even when !funcdecl_p.
2022-01-20 Martin Liska <>
PR c++/104134
* (dump_aggr_type): Partially disable the warning.
2022-01-20 Jason Merrill <>
PR c++/102300
* (cp_parser_template_name): Use dependent_scope_p.
2022-01-19 David Malcolm <>
* (selftest::run_cp_tests): Update calls for .c to .cc
* cp-tree.h (cp_pt_c_tests): Rename to...
(cp_pt_cc_tests): ...this.
(cp_tree_c_tests): Rename to...
(cp_tree_cc_tests): ...this.
* (cp_pt_c_tests): Rename to...
(cp_pt_cc_tests): ...this.
* (cp_tree_c_tests): Rename to...
(cp_tree_cc_tests): ...this.
2022-01-19 Jason Merrill <>
* (saved_token_sentinel::rollback): Use
2022-01-18 Jakub Jelinek <>
PR c++/104055
* (cxx_eval_outermost_constant_expr): If t is a
TARGET_EXPR with TARGET_EXPR_CLEANUP, use get_target_expr rather
than get_target_expr_sfinae with tf_no_cleanup, and don't set
2022-01-18 Jason Merrill <>
Jakub Jelinek <>
PR c++/104025
* (saved_token_sentinel::rollback): Call
(~saved_token_sentinel): Call rollback.
2022-01-18 Patrick Palka <>
PR c++/104074
* (invalid_nontype_parm_type_p): Use WILDCARD_TYPE_P so
that we return false for DEPENDENT_OPERATOR_TYPE too.
2022-01-17 Martin Liska <>
* Rename .c names to .cc.
* Likewise.
* (cxx_eval_constant_expression): Likewise.
* (morph_fn_to_coro): Likewise.
* (cp_gimplify_expr): Likewise.
* (struct lang_hooks): Likewise.
(get_template_argument_pack_elems_folded): Likewise.
* (cp_tree_size): Likewise.
(cp_unit_size_without_reusable_padding): Likewise.
(pop_file_scope): Likewise.
(cp_pushdecl): Likewise.
* cp-objcp-common.h (GCC_CP_OBJCP_COMMON): Likewise.
(cxx_simulate_record_decl): Likewise.
* cp-tree.h (struct named_label_entry): Likewise.
(current_function_return_value): Likewise.
(more_aggr_init_expr_args_p): Likewise.
(get_function_version_dispatcher): Likewise.
(common_enclosing_class): Likewise.
(strip_fnptr_conv): Likewise.
(current_decl_namespace): Likewise.
(do_aggregate_paren_init): Likewise.
(cp_check_const_attributes): Likewise.
(qualified_name_lookup_error): Likewise.
(generic_targs_for): Likewise.
(mark_exp_read): Likewise.
(is_global_friend): Likewise.
(maybe_reject_flexarray_init): Likewise.
(module_token_lang): Likewise.
(handle_module_option): Likewise.
(literal_integer_zerop): Likewise.
(build_extra_args): Likewise.
(build_if_nonnull): Likewise.
(maybe_check_overriding_exception_spec): Likewise.
(finish_omp_target_clauses): Likewise.
(maybe_warn_zero_as_null_pointer_constant): Likewise.
(cxx_print_error_function): Likewise.
(decl_in_std_namespace_p): Likewise.
(merge_exception_specifiers): Likewise.
(mangle_module_global_init): Likewise.
(cxx_block_may_fallthru): Likewise.
(fold_builtin_source_location): Likewise.
(enum cp_oracle_request): Likewise.
(subsumes): Likewise.
(cp_finish_injected_record_type): Likewise.
(vtv_build_vtable_verify_fndecl): Likewise.
(cp_tree_c_finish_parsing): Likewise.
* (diagnose_ref_binding): Likewise.
(convert_to_void): Likewise.
(convert_force): Likewise.
(type_promotes_to): Likewise.
* (make_unbound_class_template_raw): Likewise.
(cxx_init_decl_processing): Likewise.
(check_class_member_definition_namespace): Likewise.
(cxx_maybe_build_cleanup): Likewise.
* (maybe_emit_vtables): Likewise.
* (dump_function_name): Likewise.
* (is_class_type): Likewise.
(build_new_1): Likewise.
* lang-specs.h: Likewise.
* (make_alias_for_thunk): Likewise.
* (specialization_add): Likewise.
(module_state::read_cluster): Likewise.
* (check_extern_c_conflict): Likewise.
* name-lookup.h (struct cxx_binding): Likewise.
* (cp_parser_identifier): Likewise.
* parser.h (struct cp_parser): Likewise.
* (has_value_dependent_address): Likewise.
(push_tinst_level_loc): Likewise.
* (finish_omp_clauses): Likewise.
(finish_omp_atomic): Likewise.
* (cp_save_expr): Likewise.
(cp_free_lang_data): Likewise.
* (cp_common_type): Likewise.
(strip_array_domain): Likewise.
(rationalize_conditional_expr): Likewise.
(check_return_expr): Likewise.
* Likewise.
2022-01-17 Martin Liska <>
* call.c: Moved to...
* class.c: Moved to...
* constexpr.c: Moved to...
* cp-gimplify.c: Moved to...
* cp-lang.c: Moved to...
* cp-objcp-common.c: Moved to...
* cp-ubsan.c: Moved to...
* cvt.c: Moved to...
* cxx-pretty-print.c: Moved to...
* decl.c: Moved to...
* decl2.c: Moved to...
* dump.c: Moved to...
* error.c: Moved to...
* except.c: Moved to...
* expr.c: Moved to...
* friend.c: Moved to...
* g++spec.c: Moved to...
* init.c: Moved to...
* lambda.c: Moved to...
* lex.c: Moved to...
* mangle.c: Moved to...
* method.c: Moved to...
* name-lookup.c: Moved to...
* optimize.c: Moved to...
* parser.c: Moved to...
* pt.c: Moved to...
* ptree.c: Moved to...
* rtti.c: Moved to...
* search.c: Moved to...
* semantics.c: Moved to...
* tree.c: Moved to...
* typeck.c: Moved to...
* typeck2.c: Moved to...
* vtable-class-hierarchy.c: Moved to...
2022-01-17 Jakub Jelinek <>
PR c++/104031
* cp-gimplify.c (cp_genericize_target_expr): Set DECL_CONTEXT of
TARGET_EXPR_SLOT to current_function_decl if it was NULL.
2022-01-17 Andrew Stubbs <>
* parser.c (cp_parser_omp_requires): Don't "sorry" dynamic_allocators.
2022-01-14 Chung-Lin Tang <>
PR c++/103705
* semantics.c (finish_omp_clauses): Also continue peeling off of
outer node for ARRAY_REFs.
2022-01-14 Jakub Jelinek <>
PR c++/103991
* cp-objcp-common.c (cxx_block_may_fallthru) <case IF_STMT>: For
IF_STMT_CONSTEXPR_P with constant false or true condition only
check if the taken clause may fall through.
* cp-gimplify.c (genericize_if_stmt): For consteval if, revert
to r12-5638^ behavior if then_ block can't fall through. For
constexpr if, revert to r12-5638^ behavior.
2022-01-13 Anthony Sharp <>
Jason Merrill <>
PR c++/70417
* parser.c (cp_parser_id_expression): Handle
(struct saved_token_sentinel): Add modes to control what happens
on destruction.
(cp_parser_statement): Adjust.
(cp_parser_skip_entire_template_parameter_list): New function that
skips an entire template parameter list.
(cp_parser_require_end_of_template_parameter_list): Rename old
(cp_parser_skip_to_end_of_template_parameter_list): Refactor to be
called from one of the above two functions.
(cp_parser_enclosed_template_argument_list): Adjust.
2022-01-12 Jakub Jelinek <>
Jason Merrill <>
PR c++/103480
* tree.c (move): If expr is xvalue_p, just return expr without
2022-01-11 Jakub Jelinek <>
PR c++/101597
* class.c (build_vfn_ref): Build OBJ_TYPE_REF with INT