blob: 3049653fb4c5dbb4f6b7a218c4531914ebc6fcac [file] [log] [blame]
2021-07-28 Release Manager
* GCC 11.2.0 released.
2021-07-21 Jakub Jelinek <>
Backported from master:
2021-07-21 Jakub Jelinek <>
PR c++/101516
* semantics.c (finish_omp_reduction_clause): Also call
complete_type_or_else and return true if it fails.
2021-07-20 Iain Sandoe <>
Backported from master:
2021-07-19 Iain Sandoe <>
PR c++/95520
* (struct coroutine_info): Add fields for
actor and destroy function decls.
(to_ramp): New.
(coro_get_ramp_function): New.
(coro_get_actor_function): New.
(coro_get_destroy_function): New.
(act_des_fn): Set up mapping between ramp, actor and
destroy functions.
(morph_fn_to_coro): Adjust interface to the builder for
helper function decls.
* mangle.c (write_encoding): Handle coroutine helpers.
(write_unqualified_name): Handle lambda coroutine helpers.
2021-07-20 Iain Sandoe <>
Backported from master:
2021-07-09 Iain Sandoe <>
* (build_actor_fn): Move common code to
(build_destroy_fn): Likewise.
(act_des_fn): Build the void return here. Ensure that the
source location matches the original function.
2021-07-20 Iain Sandoe <>
Backported from master:
2021-07-09 Iain Sandoe <>
(coro_rewrite_function_body): Connect the replacement
function block to the block nest correctly.
2021-07-18 Tobias Burnus <>
Backported from master:
2021-05-04 Tobias Burnus <>
* semantics.c (finish_omp_reduction_clause): Accept float + complex
for || and && reductions.
2021-07-18 Jakub Jelinek <>
Backported from master:
2021-07-15 Jakub Jelinek <>
PR c++/101443
* cp-gimplify.c (cp_fold): For comparisons with NULLPTR_TYPE
operands, fold them right away to true or false.
2021-07-16 Patrick Palka <>
Backported from master:
2021-07-16 Patrick Palka <>
PR c++/101233
* pt.c (alias_ctad_tweaks): Clear cp_unevaluated_operand for
substituting DECL_ARGUMENTS.
2021-07-16 Patrick Palka <>
Backported from master:
2021-05-11 Patrick Palka <>
PR c++/100138
* (tsubst_constraint): Set up cp_unevaluated.
(satisfy_atom): Set up iloc_sentinel before calling
* pt.c (tsubst_pack_expansion): When returning a rebuilt pack
expansion, carry over PACK_EXPANSION_LOCAL_P and
PACK_EXPANSION_SIZEOF_P from the original pack expansion.
2021-07-13 Patrick Palka <>
Backported from master:
2021-07-09 Patrick Palka <>
PR c++/101181
* (tsubst_requires_expr): Pass complain/in_decl to
* cp-tree.h (add_extra_args): Add complain/in_decl parameters.
* pt.c (build_extra_args): Make a copy of args.
(add_extra_args): Add complain/in_decl parameters. Enable the
code for handling the case where the extra arguments are
(tsubst_pack_expansion): Pass complain/in_decl to
(tsubst_template_args): Handle missing template arguments.
(tsubst_expr) <case IF_STMT>: Pass complain/in_decl to
2021-07-13 Patrick Palka <>
Backported from master:
2021-07-09 Patrick Palka <>
PR c++/101247
* pt.c (any_template_parm_r) <case TEMPLATE_DECL>: Just walk the
2021-07-13 Patrick Palka <>
Backported from master:
2021-07-02 Patrick Palka <>
PR c++/101247
* pt.c (any_template_parm_r) <case TEMPLATE_DECL>: Rewrite to
use common_enclosing_class and to not depend on the TREE_TYPE
of outer levels pointing to the corresponding primary template.
2021-07-13 Patrick Palka <>
Backported from master:
2021-07-01 Patrick Palka <>
PR c++/101194
* constexpr.c (cxx_eval_array_reference): When the element type
is an empty type and the corresponding element is omitted, just
return an empty CONSTRUCTOR instead of attempting value
2021-07-13 Patrick Palka <>
Backported from master:
2021-06-24 Patrick Palka <>
PR c++/98832
* pt.c (maybe_aggr_guide): Handle alias templates appropriately.
2021-07-13 Patrick Palka <>
Backported from master:
2021-06-24 Patrick Palka <>
PR c++/101182
* (evaluate_requires_expr): Adjust function comment.
* cp-gimplify.c (cp_genericize_r) <case REQUIRES_EXPR>: Move to ...
(cp_fold) <case REQUIRES_EXPR>: ... here.
2021-07-13 Patrick Palka <>
Backported from master:
2021-06-07 Patrick Palka <>
PR c++/100918
* parser.c (cp_parser_lookup_name): Check access of the lookup
result before we potentially adjust an injected-class-name to
2021-07-13 Patrick Palka <>
Backported from master:
2021-05-26 Patrick Palka <>
PR c++/97420
* cvt.c (noexcept_conv_p): Remove redundant checks and simplify.
(fnptr_conv_p): Don't call non_reference. Use INDIRECT_TYPE_P
instead of TYPE_PTR_P.
* pt.c (convert_nontype_argument_function): Look through
implicit INDIRECT_REFs before calling strip_fnptr_conv.
2021-07-09 Jason Merrill <>
PR c++/101098
* decl.c (function_requirements_equivalent_p): Only compare
trailing requirements on a specialization.
2021-07-09 Jason Merrill <>
PR c++/100838
* call.c (convert_like_internal): Clear tf_no_cleanup when
(build_user_type_conversion_1): Only add ck_rvalue if
2021-07-09 Jason Merrill <>
PR c++/86355
* pt.c (use_pack_expansion_extra_args_p): Don't compare
args from the same argument pack.
2021-07-08 Marek Polacek <>
Backported from master:
2021-07-08 Marek Polacek <>
PR c++/101087
* cp-tree.h (unevaluated_p): New.
* except.c (check_noexcept_r): Use it. Don't walk into
unevaluated operands.
2021-07-07 Jason Merrill <>
2020-12-02 Jason Merrill <>
* decl.c (check_initializer): Also look through STMT_EXPR
2021-07-07 Jason Merrill <>
PR c++/101040
PR c++/97566
* class.c (is_empty_field): Handle null argument.
* constexpr.c (cxx_eval_bare_aggregate): Discard initializer
for empty field.
2021-06-29 Marek Polacek <>
Backported from master:
2021-06-26 Marek Polacek <>
PR c++/100752
* parser.c (cp_parser_declarator): Pass flags down to
cp_parser_declarator. Also pass static_p/member_p.
2021-06-23 Jakub Jelinek <>
Backported from master:
2021-06-21 Jakub Jelinek <>
PR inline-asm/100785
* typeck.c (cxx_mark_addressable): Diagnose trying to make
bit-fields addressable.
2021-06-21 Jason Merrill <>
PR c++/101106
* decl.c (duplicate_decls): Condition note on return value of pedwarn.
2021-06-17 Jakub Jelinek <>
Backported from master:
2021-06-06 Jakub Jelinek <>
PR c/100902
* parser.c (cp_parser_omp_target): Call c_omp_adjust_map_clauses
even when target is combined with other constructs.
2021-06-17 Jason Merrill <>
* init.c (build_vec_init): Preserve the type of base.
2021-06-16 Jason Merrill <>
PR c++/101078
* pt.c (tsubst_baselink): Update binfos in non-dependent case.
2021-06-16 Jason Merrill <>
PR c++/101029
* init.c (build_vec_init): Shortcut [0] case.
2021-06-10 Patrick Palka <>
Backported from master:
2021-06-10 Patrick Palka <>
PR c++/100946
* (normalize_placeholder_type_constraints): When
normalizing a non-templated return-type-requirement, add a dummy
level to initial_parms.
2021-06-09 Marek Polacek <>
Backported from master:
2021-06-08 Marek Polacek <>
PR c++/100065
* decl.c (grokdeclarator): Store a value-dependent
explicit-specifier even for deduction guides.
2021-06-08 Jason Merrill <>
PR c++/100963
* call.c (perfect_conversion_p): Check check_narrowing.
2021-06-08 Jason Merrill <>
PR c++/91706
* semantics.c (baselink_for_fns): Fix BASELINK_BINFO.
2021-06-08 Jason Merrill <>
* (duplicate_hash::hash): Comment out.
(trees_in::tree_value): Adjust loop counter.
2021-06-07 Patrick Palka <>
Backported from master:
2021-06-03 Patrick Palka <>
PR c++/100862
* pt.c (set_current_access_from_decl): Move to ...
* class.c (set_current_access_from_decl): ... here.
(handle_using_decl): Use it to propagate the access of the
using-enum decl to the copy of the imported enumerator.
* cp-tree.h (set_current_access_from_decl): Declare.
* decl.c (build_enumerator): Simplify using make_temp_override
and set_current_access_from_decl.
2021-06-07 Patrick Palka <>
Backported from master:
2021-06-04 Patrick Palka <>
PR c++/100102
* pt.c (tsubst_function_decl): Remove old code for reducing
args when it has excess levels.
2021-06-01 Jason Merrill <>
PR c++/91859
* call.c (build_op_delete_call): Don't set CALL_FROM_NEW_OR_DELETE_P
for destroying delete.
* init.c (build_delete): Don't clobber before destroying delete.
2021-06-01 Jason Merrill <>
PR c++/100797
PR c++/95719
* call.c (build_over_call): Adjust base_binfo in
resolves_to_fixed_type_p case.
2021-05-31 Jakub Jelinek <>
Backported from master:
2021-05-25 Jakub Jelinek <>
PR c++/100666
* call.c (convert_arg_to_ellipsis): For expressions with NULLPTR_TYPE
and side-effects, temporarily disable -Wunused-result warning when
2021-05-28 Patrick Palka <>
Backported from master:
2021-05-26 Patrick Palka <>
PR c++/100502
* typeck.c (finish_class_member_access_expr): Disable ahead
of time access checking during the member lookup.
2021-05-20 Jason Merrill <>
PR c++/100489
* decl.c (reshape_init_class): Handle designator for
member of anonymous aggregate here.
* typeck2.c (process_init_constructor_record): Not here.
2021-05-20 Andreas Krebbel <>
Backported from master:
2021-05-18 Andreas Krebbel <>
PR c++/100281
* cvt.c (cp_convert_to_pointer): Use the size of the target
pointer type.
* tree.c (cp_build_reference_type): Call
cp_build_reference_type_for_mode with VOIDmode.
(cp_build_reference_type_for_mode): Rename from
cp_build_reference_type. Add MODE argument and invoke
(strip_typedefs): Use build_pointer_type_for_mode and
cp_build_reference_type_for_mode for pointers and references.
2021-05-20 Jason Merrill <>
PR c++/100634
* pt.c (invalid_nontype_parm_type_p): Return true for COMPLEX_TYPE.
2021-05-20 Jason Merrill <>
PR c++/100659
* cp-tree.h (CONST_DECL_USING_P): Check for null TREE_TYPE.
2021-05-19 Jason Merrill <>
PR c++/100367
PR c++/96299
* method.c (genericize_spaceship): Use fold_build2 for scalar
2021-05-19 Jason Merrill <>
PR c++/100261
* rtti.c (get_tinfo_decl_direct): Check TYPE_TRANSPARENT_AGGR.
2021-05-19 Jason Merrill <>
PR c++/100372
* tree.c (strip_typedefs): Only look at the pattern of a
TYPE_PACK_EXPANSION if it's a type.
2021-05-18 Jason Merrill <>
PR c++/100644
* call.c (perfect_candidate_p): An implicitly deleted move
is not perfect.
2021-05-18 Jason Merrill <>
PR c++/100205
PR c++/93314
* cp-tree.h (cp_evaluated): Add reset parm to constructor.
* parser.c (cp_parser_constant_expression): Change
allow_non_constant_p to int. Use cp_evaluated.
(cp_parser_initializer_clause): Pass 2 to allow_non_constant_p.
* semantics.c (finish_id_expression_1): Don't mess with
cp_unevaluated_operand here.
2021-05-03 Patrick Palka <>
Backported from master:
2021-05-03 Patrick Palka <>
PR c++/100362
* parser.c (cp_parser_class_head): Reinstate calls to pushclass
and popclass when parsing the base-clause that were removed in
2021-04-29 Jakub Jelinek <>
Backported from master:
2021-04-29 Jakub Jelinek <>
PR c++/100319
* semantics.c (finish_omp_clauses): Fix up check that variable
mentioned in detach clause doesn't appear in data-sharing clauses.
2021-04-27 Patrick Palka <>
Backported from master:
2021-04-24 Patrick Palka <>
PR c++/89565
PR c++/93383
PR c++/95291
PR c++/99200
PR c++/99683
* pt.c (do_class_deduction): Punt if the initializer is
2021-04-27 Marek Polacek <>
Backported from master:
2021-04-22 Marek Polacek <>
PR c++/100161
* pt.c (tsubst_copy_and_build) <case PLUS_EXPR>: Test op0 and
op1 separately for value- or type-dependence.
2021-04-27 Marek Polacek <>
Backported from master:
2021-04-21 Marek Polacek <>
PR c++/96380
* parser.c (cp_parser_enum_specifier): Don't allow defining
types in enum-base.
2021-04-27 Jakub Jelinek <>
* Remove #error that triggers if DEV-PHASE is empty.
2021-04-27 Release Manager
* GCC 11.1.0 released.
2021-04-19 Marek Polacek <>
PR c++/97536
* decl.c (grokvardecl): Given an error when a concept is not defined
at namespace scope.
2021-04-16 Jakub Jelinek <>
PR c++/100111
* constexpr.c (cxx_eval_store_expression): Don't add CONSTRUCTORs
for empty classes into *valp when types don't match even when *valp
is NULL.
2021-04-16 Marek Polacek <>
PR c++/99803
* decl.c (make_typename_type): Give an error and return when
name is is_overloaded_fn.
* parser.c (cp_parser_class_name): Don't check is_overloaded_fn
before calling make_typename_type.
2021-04-16 Patrick Palka <>
PR c++/99700
* constexpr.c (reduced_constant_expression_p): For array
CONSTRUCTORs, use a dedicated loop that additionally verifies
the CONSTRUCTOR spans the entire array.
2021-04-16 Jakub Jelinek <>
PR c++/99850
* parser.c (cp_parser_constraint_requires_parens) <case CPP_DEREF>:
If lambda_p, return pce_ok instead of pce_maybe_postfix.
2021-04-16 Jakub Jelinek <>
PR c++/99833
* pt.c (extract_locals_r): When handling DECL_EXPR of a structured
binding, add to data.internal also all corresponding structured
binding decls.
2021-04-16 Jason Merrill <>
PR c++/100079
* cp-tree.h (first_field): Declare.
* mangle.c (range_expr_nelts): New.
(write_expression): Improve class NTTP mangling.
* pt.c (get_template_parm_object): Clear TREE_HAS_CONSTRUCTOR.
* tree.c (zero_init_expr_p): Improve class NTTP handling.
* decl.c: Adjust comment.
2021-04-15 Jason Merrill <>
PR c++/80456
* call.c (build_new_method_call_1): Check again for side-effects
with a volatile object.
2021-04-15 Jason Merrill <>
PR c++/100101
PR c++/99583
* pt.c (find_parameter_packs_r) [FUNCTION_TYPE]: Walk into
* tree.c (cp_walk_subtrees): Not here.
2021-04-15 Jason Merrill <>
PR c++/100091
PR c++/99478
* parser.c (cp_parser_default_type_template_argument): Set
2021-04-15 Richard Sandiford <>
PR c++/98852
* typeck.c (merge_type_attributes_from): New function.
(cp_common_type): Use it for vector types.
2021-04-14 Jason Merrill <>
PR c++/100078
PR c++/93085
* pt.c (uses_outer_template_parms): Also look at default
template argument.
2021-04-14 Jason Merrill <>
PR c++/93314
* semantics.c (finish_id_expression_1): Clear cp_unevaluated_operand
for a non-static data member in a constant-expression.
2021-04-14 Patrick Palka <>
PR c++/83476
PR c++/99885
* pt.c (deducible_expression): Look through implicit
INDIRECT_REFs as well.
2021-04-14 Jason Merrill <>
PR c++/99478
* parser.c (cp_parser_lambda_expression): Reject lambda
in template parameter type.
2021-04-14 Jason Merrill <>
PR c++/90674
* decl.c (duplicate_decls): Don't propagate
DECL_INITIALIZED_IN_CLASS_P to a specialization.
2021-04-14 Jason Merrill <>
PR c++/88742
PR c++/49951
PR c++/58123
* semantics.c (set_cleanup_locs): New.
(do_poplevel): Call it.
* parser.c (cp_parser_compound_statement): Consume the }
before finish_compound_stmt.
2021-04-13 Jason Merrill <>
PR c++/100032
* pt.c (get_underlying_template): Compare TYPE_QUALS.
2021-04-13 Jason Merrill <>
PR c++/100054
PR c++/90479
* init.c (get_nsdmi): Do more context adjustment for local classes.
2021-04-13 Patrick Palka <>
PR c++/99008
* pt.c (do_class_deduction): Reject alias CTAD in C++17 mode
rather than issuing a pedwarn.
* typeck2.c (build_functional_cast_1): Handle CTAD uniformly
for consistent diagnostics.
2021-04-13 Jason Merrill <>
PR c++/91933
* class.c (build_base_path): Shortcut simple non-pointer case.
2021-04-13 Eric Botcazou <>
* (ordinary_loc_of): Test LINEMAPS_MACRO_LOWEST_LOCATION
of the linemap.
(module_state::write_location): Likewise.
2021-04-13 Patrick Palka <>
PR c++/97134
* pt.c (do_class_deduction): Look through EXPR_PACK_EXPANSION
when checking if the initializer is an equivalent class
placeholder template parameter.
2021-04-13 Patrick Palka <>
PR c++/99961
PR c++/99994
* (satisfy_normalized_constraints): Set
* parser.c (cp_parser_concept_definition): Likewise.
(cp_parser_requires_clause_opt): Likewise.
2021-04-12 Jason Merrill <>
PR c++/93085
* pt.c (uses_outer_template_parms): Handle non-type and template
template parameters specifically.
2021-04-11 Jason Merrill <>
PR c++/97974
* decl.c (fixup_anonymous_aggr): Prune all functions from
2021-04-10 Jason Merrill <>
PR c++/98800
PR c++/97399
* parser.c (cp_parser_direct_declarator): Don't
inject_this_parameter if static_p.
(cp_parser_omp_var_list_no_open): Parse 'this' even if
current_class_ptr isn't set for a better diagnostic.
2021-04-10 Jason Merrill <>
PR c++/99180
PR c++/93295
PR c++/93867
PR c++/99118
PR c++/96873
* pt.c (alias_ctad_tweaks): Handle failure better.
2021-04-10 Jason Merrill <>
PR c++/100006
* pt.c (find_parameter_packs_r) [TAG_DEFN]: Look into bases.
2021-04-09 Patrick Palka <>
(LAMBDA_EXPR_REGENERATING_TARGS): Replace these with ...
(tree_lambda_expr::regenerating_targs): Replace these with ...
(tree_lambda_expr::regen_info): ... this.
* (satisfy_declaration_constraints): Adjust
* lambda.c (build_lambda_expr): Likewise.
* pt.c (regenerated_lambda_fn_p): Likewise.
(most_general_lambda): Likewise.
(tsubst_lambda_expr): Likewise.
2021-04-09 Marek Polacek <>
PR c++/99806
* parser.c (cp_parser_member_declaration): Call
cp_parser_save_default_args even for function templates. Use
STRIP_TEMPLATE on the declaration we're passing.
2021-04-08 Patrick Palka <>
PR c++/99874
* (get_normalized_constraints_from_decl): Handle
regenerated lambdas.
(satisfy_declaration_constraints): Likewise. Check for
dependent args later.
* cp-tree.h (LAMBDA_EXPR_INSTANTIATED): Replace with ...
(tree_lambda_expr::regenerated_from): New data member.
(tree_lambda_expr::regenerating_targs): New data member.
(add_to_template_args): Declare.
(regenerated_lambda_fn_p): Likewise.
(most_general_lambda): Likewise.
* lambda.c (build_lambda_expr): Set LAMBDA_EXPR_REGENERATED_FROM
* pt.c (add_to_template_args): No longer static.
(tsubst_function_decl): Unconditionally propagate constraints on
the substituted function decl.
(instantiated_lambda_fn_p): Rename to ...
(regenerated_lambda_fn_p): ... this. Check
(most_general_lambda): Define.
(enclosing_instantiation_of): Adjust after renaming
(tsubst_lambda_expr): Don't set LAMBDA_EXPR_INSTANTIATED. Set
Don't substitute or set constraints on the regenerated lambda.
2021-04-08 Patrick Palka <>
PR c++/97679
* pt.c (build_deduction_guide): Document OUTER_ARGS. Substitute
them into the propagated constraints.
2021-04-08 Jason Merrill <>
PR c++/91849
* call.c (convert_like_internal): Improve reference diagnostic.
2021-04-08 Jakub Jelinek <>
PR c++/99859
* constexpr.c (addr_of_non_const_var): New function.
(cxx_bind_parameters_in_call): Set *non_constant_args to true
even if cp_walk_tree on arg with addr_of_non_const_var callback
returns true.
2021-04-08 Jason Merrill <>
PR c++/94529
* pt.c (determine_specialization): Improve diagnostic.
2021-04-08 Marek Polacek <>
PR c++/99844
* decl.c (build_explicit_specifier): Call
* except.c (build_noexcept_spec): Likewise.
2021-04-07 Jason Merrill <>
PR c++/41723
* parser.c (cp_parser_class_name): Check dependent_scope_p.
2021-04-07 Jason Merrill <>
PR c++/52625
* pt.c (maybe_process_partial_specialization): Check
2021-04-07 Jason Merrill <>
PR c++/92918
* name-lookup.c (push_class_level_binding_1): Do overload a new
function with a previous using-declaration.
2021-04-06 Jason Merrill <>
PR c++/96673
* init.c (get_nsdmi): Don't defer access checking.
2021-04-06 Jason Merrill <>
PR c++/99901
* decl.c (cp_finish_decl): mark_needed an implicitly inline
static data member with an out-of-class redeclaration.
2021-04-06 Jason Merrill <>
PR c++/91241
* mangle.c (write_compact_number): Add sanity check.
(write_local_name): Use list_length for parm number.
2021-04-06 Patrick Palka <>
PR c++/99899
* pt.c (do_auto_deduction): Don't exit early when deducing the
array type of a structured binding. Also handle adc_decomp_type
during constraint checking.
2021-04-05 Jason Merrill <>
PR c++/96311
* typeck.c (check_return_expr): Call mark_exp_read in dependent
2021-04-05 Jason Merrill <>
PR c++/98440
* typeck.c (build_reinterpret_cast_1): Don't perform
temporary materialization.
2021-04-05 Jason Merrill <>
PR c++/95317
* pt.c (lookup_template_class_1): Do tsubst_enum when
tsubsting a generic lambda.
2021-04-05 Jason Merrill <>
PR c++/95870
* pt.c (enclosing_instantiation_of): Compare DECL_SOURCE_LOCATION if
there is no enclosing non-lambda function.
2021-04-05 Nathan Sidwell <>
PR c++/99380
* (name_pending_imports): Drop 'atend' parm. Don't
query export when not needed.
(preprocess_module, preprocessed_module): Adjust.
2021-04-05 Jason Merrill <>
PR c++/99066
* pt.c (mark_decl_instantiated): Set DECL_EXTERNAL.
2021-04-05 Jason Merrill <>
PR c++/99201
* pt.c (class el_data): Add visited field.
(extract_local_specs): Pass it to cp_walk_tree.
(extract_locals_r): Walk into the body of a lambda.
2021-04-05 Jason Merrill <>
* ptree.c (cxx_print_decl): Check DECL_MODULE_IMPORT_P on
template result.
2021-04-04 Jason Merrill <>
PR c++/99643
* typeck2.c (massage_init_elt): Don't strip TARGET_EXPR.
2021-04-03 Marek Polacek <>
PR c++/91416
* parser.c: Create a GC root for attributes in a decl specifier.
(cp_parser_type_specifier): Push/pop ->attributes onto/from it.
2021-04-03 Jason Merrill <>
PR c++/91217
* pt.c (tsubst_lambda_expr): Skip the body block from
2021-04-03 Jason Merrill <>
PR c++/90664
* cvt.c (can_convert_qual): Check fnptr_conv_p.
2021-04-03 Jason Merrill <>
PR c++/97900
* pt.c (regenerate_decl_from_template): tsubst_decl
the parms.
2021-04-02 Patrick Palka <>
PR c++/99869
* parser.c (do_range_for_auto_deduction): Pass adc_variable_type
to do_auto_deduction.
2021-04-02 Patrick Palka <>
PR c++/99586
* semantics.c (finish_compound_literal): Check
template_placeholder_p instead of type_uses_auto.
2021-04-02 Jason Merrill <>
PR c++/97938
* cp-tree.h (PACK_EXPANSION_AUTO_P): New.
* lambda.c (add_capture): Set it.
* pt.c (tsubst_pack_expansion): Handle it.
2021-04-02 Nathan Sidwell <>
* cp-tree.h (lang_decl_base): Correct module flag comment.
* (trees_in::assert_definition): Break out
not_tmpl var.
(trees_out::lang_decl_bools): Do not write purview for header units.
2021-04-01 Marek Polacek <>
PR c++/99831
* method.c (defaulted_late_check): ++ and -- function_depth around
the call to synthesize_method.
* pt.c: Remove the saved_trees global.
2021-04-01 Jason Merrill <>
PR c++/99583
PR c++/99584
* tree.c (cp_walk_subtrees) [FUNCTION_TYPE]: Walk into
2021-04-01 Iain Sandoe <>
* (INCLUDE_MAP): New; require map to be
included from system.h.
* (INCLUDE_MAP): Likewise.
2021-04-01 Jason Merrill <>
PR c++/98481
* mangle.c (write_expression): Adjust.
* class.c (find_abi_tags_r): Disable PR98481 fix for ABI v14.
(mark_abi_tags_r): Likewise.
2021-04-01 Nathan Sidwell <>
PR c++/99283
* (trees_out::decl_node): Adjust importedness reference
(module_state::intercluster_seed): New. Seed both imports and
inter-cluster references. Broken out of ...
(module_state::write_cluster): ... here. Call it.
2021-03-31 Jason Merrill <>
PR c++/99445
* tree.c (strip_typedefs): Handle TYPE_PACK_EXPANSION.
2021-03-31 Patrick Palka <>
PR c++/88115
* mangle.c (write_expression): Adjust the mangling of
2021-03-31 Patrick Palka <>
PR c++/99815
* pt.c (placeholder_type_constraint_dependent_p): Expand
argument packs to separate the first non-pack argument
from the rest.
2021-03-30 Nathan Sidwell <>
PR c++/99283
* (dumper::operator): Make less brittle.
(trees_out::core_bools): VAR_DECLs always have a context.
(trees_out::key_mergeable): Use same_type_p for asserting.
(trees_in::read_var_def): Propagate
2021-03-30 Jakub Jelinek <>
PR c++/99790
* cp-gimplify.c (cp_gimplify_expr): Handle PTRMEM_CST.
2021-03-26 Marek Polacek <>
PR c++/98352
* method.c (implicitly_declare_fn): Pass &raises to
2021-03-26 Nathan Sidwell <>
PR c++/99283
(SET_TYPE_TEMPLATE_INFO): Restore Alias template setting.
* decl.c (duplicate_decls): Remove template_decl module flag
* (merge_kind_name): Add alias tmpl spec as a thing.
(dumper::impl::nested_name): Adjust for template-decl module flag
(trees_in::assert_definition): Likewise.
(trees_in::install_entity): Likewise.
(trees_out::decl_value): Likewise. Remove alias template
separation of template and type_decl.
(trees_in::decl_value): Likewise.
(trees_out::key_mergeable): Likewise,
(trees_in::key_mergeable): Likewise.
(trees_out::decl_node): Adjust for template-decl module flag
(depset::hash::make_dependency): Likewise.
(get_originating_module, module_may_redeclare): Likewise.
(set_instantiating_module, set_defining_module): Likewise.
* name-lookup.c (name_lookup::search_adl): Likewise.
(do_pushdecl): Likewise.
* pt.c (build_template_decl): Likewise.
(lookup_template_class_1): Remove special alias_template handling
(tsubst_template_decl): Likewise.
2021-03-26 Jakub Jelinek <>
PR c++/99705
* tree.c (bot_manip): Remap artificial automatic temporaries mentioned
2021-03-25 Jakub Jelinek <>
PR c++/99672
* parser.c (cp_parser_postfix_expression): For calls, create
combined_loc and temporarily set input_location to it before
calling finish_call_expr.
2021-03-25 Marek Polacek <>
PR c++/94751
* call.c (build_over_call): Maybe call mark_used in case
deduce_inheriting_ctor fails and return error_mark_node.
* cp-tree.h (deduce_inheriting_ctor): Adjust declaration.
* method.c (deduce_inheriting_ctor): Return bool if the deduction
(implicitly_declare_fn): If raises is error_mark_node, call
synthesized_method_walk with diag being true.
2021-03-25 Jakub Jelinek <>
PR c++/99745
* decl2.c (grokbitfield): Diagnose bitfields containing bare parameter
packs and don't set DECL_BIT_FIELD_REPRESENTATIVE in that case.
2021-03-25 Marek Polacek <>
PR c++/99331
* call.c (build_converted_constant_expr_internal): Don't emit
-Wconversion warnings.
2021-03-25 Jakub Jelinek <>
PR c++/99565
* call.c (build_conditional_expr_1): Pass OEP_ADDRESS_OF_SAME_FIELD
to operand_equal_p.
* cvt.c (convert_to_void): Preserve location_t on COND_EXPR or
2021-03-23 Nathan Sidwell <>
PR c++/99283
* name-lookup.c (check_module_override): Set global or partition
DUP on the binding vector.
2021-03-23 Marek Polacek <>
PR c++/99318
* decl2.c (cp_warn_deprecated_use_scopes): Only call
cp_warn_deprecated_use when decl is a namespace, class, or enum.
2021-03-23 Nathan Sidwell <>
PR c++/99239
* decl.c (duplicate_decls): Remove assert about maybe-imported
artificial decls.
2021-03-23 Jakub Jelinek <>
PR c++/99650
* decl.c (cp_finish_decomp): Diagnose void initializers when
using tuple_element and get.
2021-03-22 Nathan Sidwell <>
PR c++/99480
* (depset::hash::make_dependency): Propagate flags for
partial specialization.
(module_may_redeclare): Handle partial specialization.
2021-03-22 Nathan Sidwell <>
PR c++/99425
* cp-tree.h (map_context_from, map_context_to): Delete.
(add_mergeable_specialization): Add is_alias parm.
* pt.c (add_mergeable_specialization): Add is_alias parm, add them.
* (map_context_from, map_context_to): Delete.
(trees_in::decl_value): Add specializations later, adjust call.
Drop useless alias lookup. Set duplicate fn parm context.
(check_mergeable_decl): Drop context mapping.
(trees_in::is_matching_decl): Likewise.
(trees_in::read_function_def): Drop parameter context adjustment
2021-03-22 Martin Liska <>
PR c++/99687
* (fini_modules): Call vec_free instead of delete.
2021-03-20 Jakub Jelinek <>
PR debug/99230
* cp-gimplify.c (cp_genericize_r) <case STATEMENT_LIST>: Remove
special code, instead call c_genericize_control_stmt.
2021-03-19 Jakub Jelinek <>
PR c++/99456
* constexpr.c (cxx_eval_constant_expression): For CONVERT_EXPR from
INDIRECT_TYPE_P to ARITHMETIC_TYPE_P, when !ctx->manifestly_const_eval
don't diagnose it, set *non_constant_p nor return t.
2021-03-19 Marek Polacek <>
PR c++/99500
* parser.c (cp_parser_requirement_parameter_list): Handle
2021-03-18 Marek Polacek <>
* pt.c (tsubst_copy_and_build) <case FLOAT_EXPR>: Remove.
2021-03-18 Marek Polacek <>
* pt.c (tsubst_copy_and_build): Add assert.
2021-03-18 Iain Sandoe <>
PR objc++/49070
* parser.c (cp_debug_parser): Add Objective-C++ message
state flag.
(cp_parser_nested_name_specifier_opt): Allow colon to
terminate an assignment-expression when parsing Objective-
C++ messages.
(cp_parser_objc_message_expression): Set and clear message
parsing state on entry and exit.
* parser.h (struct cp_parser): Add a context flag for
Objective-C++ message state.
2021-03-18 Martin Liska <>
PR c++/99617
* (struct var_nest_node): Init then_cl and else_cl
to NULL.
2021-03-17 Marek Polacek <>
PR c++/97973
* call.c (conv_unsafe_in_template_p): New.
(convert_like): Use it.
2021-03-17 Anthony Sharp <>
Jason Merrill <>
* semantics.c (get_class_access_diagnostic_decl): New
function that examines special cases when a parent
class causes a private access failure.
(enforce_access): Slightly modified to call function
2021-03-16 Jason Merrill <>
* tree.c (cp_tree_equal): Use real_identical.
2021-03-16 Jakub Jelinek <>
PR c++/99613
* decl.c (expand_static_init): For thread guards, call __cxa_atexit
before calling __cxa_guard_release rather than after it. Formatting
2021-03-16 Martin Liska <>
Jason Merrill <>
PR c++/99108
* call.c (get_function_version_dispatcher): Handle
* decl.c (maybe_version_functions): Likewise.
(maybe_mark_function_versioned): New.
* name-lookup.c (push_local_extern_decl_alias): No longer static.
* name-lookup.h (push_local_extern_decl_alias): Adjust.
2021-03-16 Nathan Sidwell <>
PR c++/99496
* (trees_out::decl_value): Adjust typedef streaming,
indicate whether it is a dependent alias.
(trees_in::decl_value): Likewise. Set as dependent alias, if it
is one.
2021-03-15 Iain Sandoe <>
PR c++/99047
* (expand_one_await_expression): If the
await_ready() expression is not a boolean then convert it
as required.
2021-03-15 Iain Sandoe <>
PR c++/98704
* (build_actor_fn): Make destroy index 1
correspond to the abnormal unhandled_exception() exit.
Substitute the proxy for the resume index.
(coro_rewrite_function_body): Arrange to reset the resume
index and make done = true for a rethrown exception from
unhandled_exception ().
(morph_fn_to_coro): Adjust calls to build_actor_fn and
2021-03-15 Iain Sandoe <>
PR c++/98480
* (replace_continue): Rewrite continue into
'goto label'.
(await_statement_walker): Handle await expressions in the
initializer, condition and iteration expressions of for
2021-03-15 Iain Sandoe <>
PR c++/96749
* (flatten_await_stmt): Allow for the case
where a target expression variable only has uses in the
second part of a compound expression.
(maybe_promote_temps): Avoid emiting empty statements.
2021-03-15 Tobias Burnus <>
PR c++/99509
* decl.c (cp_finish_decl): For 'omp declare target implicit' vars,
ensure that the varpool node is marked as offloadable.
2021-03-12 Nathan Sidwell <>
PR c++/99238
* (depset::hash::add_binding_entity): Assert not
(depset::add::add_specializations): Likewise.
* name-lookup.c (name_lookup::dedup): New.
(name_lookup::~name_lookup): Assert not deduping.
(name_lookup::restore_state): Likewise.
(name_lookup::add_overload): Replace outlined code with dedup
(name_lookup::add_value): Likewise.
(name_lookup::search_namespace_only): Likewise.
(name_lookup::adl_namespace_fns): Likewise.
(name_lookup::adl_class_fns): Likewise.
(name_lookup::search_adl): Likewise. Add clearing dedup call.
(name_lookup::search_qualified): Likewise.
(name_lookup::search_unqualified): Likewise.
2021-03-12 Jakub Jelinek <>
PR c++/99507
* call.c (build_over_call): For immediate evaluation of functions
that return references, undo convert_from_reference effects before
calling cxx_constant_value and call convert_from_reference
2021-03-11 Nathan Sidwell <>
PR c++/99248
* name-lookup.c (lookup_elaborated_type_1): Access slot not bind
when there's a binding vector.
* ptree.c (cxx_print_xnode): Lazy flags are no longer a thing.
2021-03-11 Nathan Sidwell <>
PR c++/99528
* (enum merge_kind): Delete MK_type_tmpl_spec,
(trees_in::decl_value): Adjust add_mergeable_specialization call.
(trees_out::get_merge_kind): Adjust detecting a partial template
(trees_out::key_mergeable): Adjust handling same.
(trees_in::key_mergeabvle): Likewise.
2021-03-10 Nathan Sidwell <>
PR c++/99423
* (post_load_processing): Assert not gcable.
(laxy_load_pendings): Extend no-gc region around
2021-03-10 Nathan Sidwell <>
PR c++/99508
* decl.c (make_rtl_for_nonlocal_decl): Propagate local-extern's
assembler name to the ns alias.
2021-03-09 Jakub Jelinek <>
PR c++/99459
* (build_co_await): Look through NOP_EXPRs in
build_special_member_call return value to find the CALL_EXPR.
2021-03-09 Nathan Sidwell <>
PR c++/99472
* parser.c (cp_parser_diagnose_invalid_type_name): Clarify
that C++20 does not yet imply modules.
2021-03-08 Nathan Sidwell <>
PR c++/99436
* name-lookup.c (get_cxx_dialect_name): Add cxx23.
2021-03-08 Nathan Sidwell <>
* lex.c (module_token_filter::resume): Ignore module-decls inside
* parser.c (cp_parser_module_declaration): Reject in header-unit.
2021-03-08 Nathan Sidwell <>
PR c++/99285
* cp-tree.h (match_mergeable_specialization)
(add_mergeable_specialization): Adjust parms.
* (trees_in::decl_value): Adjust
add_mergeable_specialization calls.
(trees_out::key_mergeable): Adjust match_mergeable_specialization
(specialization_add): Likewise.
* pt.c (match_mergeable_specialization): Do not insert.
(add_mergeable_specialization): Add to hash table here.
2021-03-06 Patrick Palka <>
Jakub Jelinek <>
PR c++/99287
* constexpr.c (cxx_eval_increment_expression): Pass lval when
evaluating the MODIFY_EXPR, and update 'mod' with the result of
this evaluation. Check *non_constant_p afterwards. For prefix
ops, just return 'mod'.
2021-03-06 Patrick Palka <>
Jakub Jelinek <>
PR c++/96330
* pt.c (tsubst_copy) <case TEMPLATE_ID_EXPR>: Rename local
variable 'fn' to 'tmpl'. Handle a variable template-id by
calling lookup_template_variable.
2021-03-06 Patrick Palka <>
PR c++/99365
* pt.c (unify) <case TEMPLATE_TYPE_PARM>: Pass targs as
outer_targs to do_auto_deduction.
(placeholder_type_constraint_dependent_p): Define.
(do_auto_deduction): When processing_template_decl != 0
and context is adc_unify and we have constraints, pretend the
constraints are satisfied instead of punting. Otherwise don't
punt unless placeholder_type_constraint_dependent_p holds.
Add some clarifying sanity checks. Add a hack to add missing
outermost template levels to outer_args before checking
satisfaction. Don't substitute outer_targs into type if it's
already been done.
2021-03-05 Marek Polacek <>
PR c++/99374
* call.c (standard_conversion): When converting pointers to
member, don't return NULL when the bases are equivalent but
2021-03-05 Marek Polacek <>
PR c++/99120
* name-lookup.c (check_local_shadow): Check if the type of decl
is non-null before checking TYPE_PTR*.
2021-03-05 Nathan Sidwell <>
PR c++/99245
* (module_state::write_cluster): Relax binding assert.
2021-03-05 Nathan Sidwell <>
PR c++/99377
* pt.c (instantiate_decl): Call set_instantiating_module.
2021-03-05 Iain Sandoe <>
PR c++/98118
* (build_co_await): Use type_build_ctor_call()
to determine cases when a CTOR needs to be built.
(flatten_await_stmt): Likewise.
(morph_fn_to_coro): Likewise.
2021-03-05 Iain Sandoe <>
PR c++/95616
* (coro_diagnose_throwing_fn): New helper.
(coro_diagnose_throwing_final_aw_expr): New helper.
(build_co_await): Diagnose throwing final await expression
(build_init_or_final_await): Diagnose a throwing promise
final_suspend() call.
2021-03-05 Iain Sandoe <>
PR c++/95615
* (struct param_info): Track parameter copies that need
(coro_get_frame_dtor): New helper function factored from build_actor().
(build_actor_fn): Use coro_get_frame_dtor().
(morph_fn_to_coro): Track parameters that need DTORs on exception,
likewise the frame promise and the return object. On exception, run the
DTORs for these, destroy the frame and then rethrow the exception.
2021-03-05 Nathan Sidwell <>
PR c++/99389
* pt.c (instantiate_class_template_1): Set instantiating module
2021-03-05 Tobias Burnus <>
PR c/99137
* parser.c (cp_parser_oacc_clause_async): Reject comma expressions.
2021-03-04 Jakub Jelinek <>
PR c++/88146
PR c++/99362
* cvt.c (convert_to_void): Revert 2019-10-17 changes. Clarify
2021-03-04 Nathan Sidwell <>
PR c++/99170
* (class uintset): Delete.
(typedef attached_map_t): A hash map.
(attached_table): Use attached_map_t. Adjust uses ...
(trees_out::decl_value, trees_in::decl_value): ... here ...
(trees_out::key_mergeable): ... here ...
(trees_in::key_mergeable): ... here ...
(maybe_attach_decl): ... here ...
(direct_import): ... and here.
2021-03-04 Nathan Sidwell <>
PR c++/99170
* cp-tree.h
* lex.c (cxx_dup_lang_specific_decl): Adjust for module_attached_p
* (class pending_key): New.
(default_hash_traits<pending_key>): New specialization.
(pending_map_t): New typedef.
(pending_table): Replace old table.
(trees_out::lang_decl_bools): Adjust.
(trees_in::lang_decl_bools): Adjust.
(trees_in::install_entity): Drop pending member and specialization
(find_pending_key): New.
(depset::hash::fiund_dependencies): Use it.
(pendset_lazy_load): Delete.
(module_state::write_cluster): Don't count pendings here. Bye
Duff's device-like thing.
(module_state::write_pendings): Reimplement.
(module_state::read_pendings): Reimplement.
(lazy_specializations_p): Delete.
(module_state::write): Adjust write_pendings call.
(lazy_load_pendings): New.
(lazy_load_specializations): Delete.
(lazy_load_members): Delete.
(init_modules): Adjust.
* name-lookup.c (maybe_lazily_declare): Call lazy_load_pendings
not lazy_load_members.
(note_pending_specializations): Delete.
(load_pending_specializations): Delete.
(note_pending_specializations): Delete.
(load_pending_specializations): Delete.
* pt.c (lookup_template_class_1): Call lazy_load_pendings not
(instantiate_template_class_1): Likewise.
(instantiate_decl): Call lazy_load_pendings.
* typeck.c (complete_type): Likewise.
2021-03-03 Nathan Sidwell <>
PR c++/99170
* (post_load_decls): New.
(lazy_snum, recursive_lazy): Move earlier.
(module_state::read_cluster): Push cloning onto post_load_decls.
(post_load_processing): New. Do the cloning here.
(module_state::read_inits): Call post_load_processing.
(module_state::read_language): Likewise.
(lazy_load_binding, lazy_load_specializations): Likewise
(lazy_load_members): Likewise
2021-03-03 Nathan Sidwell <>
PR c++/99170
* (trees_out::decl_value): Stream specialization keys
after decl.
(trees_in::decl_value): Stream them back and insert after
completing the decl.
(trees_out::key_mergeable): Drop some streaming here ...
(trees_in::key_mergeable): ... and here. Don't insert into
specialization tables.
2021-03-03 Patrick Palka <>
* (struct sat_info): Document the different
meanings of noisy() and diagnose_unsatisfaction_p() during
satisfaction and requires-expression evaluation.
(tsubst_valid_expression_requirement): Take a sat_info instead
of a subst_info. Perform the substitution quietly first. Fold
in error-replaying code from diagnose_valid_expression.
(tsubst_simple_requirement): Take a sat_info instead of a
(tsubst_type_requirement_1): New. Fold in error-replaying code
from diagnose_valid_type.
(tsubst_type_requirement): Use the above. Take a sat_info
instead of a subst_info.
(tsubst_compound_requirement): Likewise. Fold in
error-replaying code from diagnose_compound_requirement.
(tsubst_nested_requirement): Take a sat_info instead of a
subst_info. Fold in error-replaying code from
(tsubst_requirement): Take a sat_info instead of a subst_info.
(tsubst_requires_expr): Split into two versions, one that takes
a sat_info argument and another that takes a complain and
in_decl argument. Remove outdated documentation. Document the
effects of the sat_info argument. Don't short-circuit
processing of requirements when diagnosing unsatisfaction,
mirroring diagnose_requires_expr.
(satisfy_nondeclaration_constraint) <case REQUIRES_EXPR>: Remove
assert, and se the three-parameter version of tsubst_requires_expr.
(diagnose_trait_expr): Make static. Take a template argument
vector instead of a parameter mapping.
(diagnose_valid_expression): Remove.
(diagnose_valid_type): Remove.
(diagnose_simple_requirement): Remove.
(diagnose_compound_requirement): Remove.
(diagnose_type_requirement): Remove.
(diagnose_nested_requirement): Remove.
(diagnose_requirement): Remove.
(diagnose_requires_expr): Remove.
(diagnose_atomic_constraint): Take a sat_info instead of a
subst_info. Adjust call to diagnose_trait_expr. Call
tsubst_requires_expr instead of diagnose_requires_expr.
(diagnose_constraints): Remove special casing of REQUIRES_EXPR
and just always call constraint_satisfaction_value.
2021-03-03 Patrick Palka <>
* constexpr.c (cxx_eval_call_expression): Adjust call to
(cxx_eval_constant_expression) <case REQUIRES_EXPR>: Use
evaluate_requires_expression instead of
<case TEMPLATE_ID_EXPR>: Adjust call to evaluate_concept_check.
* (struct sat_info): Adjust comment about which
satisfaction entrypoints use noisy-unsat.
(normalize_template_requirements): Remove (and adjust callers
(normalize_nontemplate_requirements): Likewise.
(tsubst_nested_requirement): Use constraint_satisfaction_value
instead of satisfy_constraint_expression, which'll do the
noisy replaying of ill-formed quiet satisfaction for us.
(decl_satisfied_cache): Adjust comment.
(satisfy_constraint): Rename to ...
(satisfy_normalized_constraints): ... this.
(satisfy_associated_constraints): Remove (and make its
callers check for dependent arguments).
(satisfy_constraint_expression): Rename to ...
(satisfy_nondeclaration_constraints): ... this. Assert that
'args' is empty when 't' is a concept-id. Removing handling
bare constraint-expressions, and handle REQUIRES_EXPRs
specially. Adjust comment accordingly.
(satisfy_declaration_constraints): Assert in the two-parameter
version that 't' is not a TEMPLATE_DECL. Adjust following
removal of normalize_(non)?template_requirements and
(constraint_satisfaction_value): Combine the two- and
three-parameter versions in the natural way.
(constraints_satisfied_p): Combine the one- and two-parameter
versions in the natural way. Improve documentation.
(evaluate_requires_expr): Define.
(evaluate_concept_check): Remove 'complain' parameter. Use
constraint_satisfaction_value instead of
(diagnose_nested_requirement): Adjust following renaming of
(diagnose_constraints): Handle REQUIRES_EXPR by going through
diagnose_requires_expr directly instead of treating it as a
constraint-expression. Improve documentation.
* cp-gimplify.c (cp_genericize_r) <case CALL_EXPR>: Adjust call
to evaluate_concept_check.
<case REQUIRES_EXPR>: Use evaluate_requires_expr instead of
<case TEMPLATE_ID_EXPR>: Adjust call to evaluate_concept_check.
* cp-tree.h (evaluate_requires_expr): Declare.
(evaluate_concept_check): Remove tsubst_flag_t parameter.
(satisfy_constraint_expression): Remove declaration.
(constraints_satisfied_p): Remove one-parameter declaration.
Add a default argument to the two-parameter declaration.
* cvt.c (convert_to_void): Adjust call to
2021-03-03 Jakub Jelinek <>
PR c++/82959
* call.c (op_is_ordered): Handle TRUTH_ANDIF_EXPR, TRUTH_ORIF_EXPR
2021-03-03 Marek Polacek <>
PR c++/97034
PR c++/99009
* pt.c (build_deduction_guide): Use INNERMOST_TEMPLATE_ARGS.
(maybe_aggr_guide): Use the original template type where needed. In
a class member template, partially instantiate the result of
(do_class_deduction): Defer the deduction until the enclosing
scope is non-dependent.
2021-03-03 Jason Merrill <>
PR c++/95675
* call.c (build_temp): Wrap a CALL_EXPR in a TARGET_EXPR
if it didn't get one before.
2021-03-03 Nathan Sidwell <>
PR c++/99344
* (trees_out::decl_node): Small refactor.
(depset::hash::add_binding_entity): Return true on meeting an
import. Set namespace's import here.
(module_state:write_namespaces): Inform of purview too.
(module_state:read_namespaces): Adjust.
* name-lookup.c (implicitly_export_namespace): Delete.
(do_pushdecl): Don't call it.
(push_namespace): Likewise, set purview.
(add_imported_namespace): Reorder parms.
* name-lookup.h (add_imported_namespace): Alter param ordering.
2021-03-02 Martin Sebor <>
PR c++/99251
* class.c (build_base_path): Call build_if_nonnull.
* cp-tree.h (build_if_nonnull): Declare.
* rtti.c (ifnonnull): Rename...
(build_if_nonnull): this. Set no-warning bit on COND_EXPR.
(build_dynamic_cast_1): Adjust to name change.
2021-03-02 Patrick Palka <>
PR c++/96443
PR c++/96960
* (type_deducible_p): Don't substitute into the
constraints, and instead just pass 'args' to do_auto_deduction
as the outer template arguments.
(tsubst_parameter_mapping): Remove confused code for handling
placeholder type arguments.
(normalize_placeholder_type_constraint): Define.
(satisfy_constraint_expression): Use it to handle placeholder
'auto' types.
(PLACEHOLDER_TYPE_CONSTRAINTS): Redefine in terms of the above.
* pt.c (tsubst) <case TEMPLATE_TYPE_PARM>: Use
(make_constrained_placeholder_type): Set
(do_auto_deduction): Clarify comments about the outer_targs
parameter. Rework satisfaction of a placeholder type constraint
to pass in the complete set of template arguments directly to
(splice_late_return_type): Use PLACEHOLDER_TYPE_CONSTRAINTS_INFO
instead. Also rebuild the the constraint info on the new auto.
2021-03-02 Patrick Palka <>
* (build_parameter_mapping): Rely on the caller to
determine the in-scope template parameters.
(norm_info::norm_info): Delegate the tsubst_flags_t constructor
to the two-parameter constructor. In the two-parameter
constructor, fold in the definition of make_context, set
initial_parms appropriately, and don't set the now-removed
orig_decl member.
(norm_info::make_context): Remove, now that its only use is
inlined into the caller.
(norm_info::update_context): Adjust call to
build_parameter_mapping to pass in the relevant set of in-scope
template parameters.
(norm_info::ctx_parms): Define this member function.
(norm_info::context): Initialize to NULL_TREE.
(norm_info::orig_decl): Remove this data member.
(norm_info::initial_parms): Define this data member.
(normalize_atom): Adjust call to build_parameter_mapping to pass
in the relevant set of in-scope template parameters. Use
info.initial_parms instead of info.orig_decl.
(normalize_constraint_expression): Take a norm_info object
instead of a bool. Cache the result of normalization.
(tsubst_nested_requirement): Call satisfy_constraint_expression
instead of satisfy_constraint, so that we normalize on demand.
(satisfy_constraint_expression): Handle a NESTED_REQ argument.
Adjust call to normalize_constraint_expression.
(finish_nested_requirement): Set the TREE_TYPE of the NESTED_REQ
to current_template_parms.
(diagnose_nested_requirements): Go through
satisfy_constraint_expression, as with tsubst_nested_requirement.
2021-03-02 Patrick Palka <>
* (tsubst_parameter_mapping): Canonicalize the
arguments of a substituted TYPE_ARGUMENT_PACK even if we've
started with a TYPE_ARGUMENT_PACK.
(finish_requires_expr): Don't set DECL_CONTEXT and
CONSTRAINT_VAR_P on each of the introduced parameters here.
* parser.c (cp_parser_requirement_parameter_list): Instead set
these fields earlier, here.
* pt.c (do_auto_deduction): Canonicalize the result of
do_auto_deduction. Pass 'complain' to finish_decltype_type.
2021-03-02 Patrick Palka <>
* (tsubst_simple_requirement): Just return
boolean_true_node on success.
(tsubst_type_requirement): Likewise.
(tsubst_compound_requirement): Likewise.
(tsubst_nested_requirement): Likewise.
(tsubst_requirement_body): Remove.
(check_constaint_variables): Rename to ...
(check_constraint_variables): ... this.
(tsubst_constraint_variables): Adjust.
(tsubst_requires_expr): Fold tsubst_requirement_body into here.
2021-03-01 Nathan Sidwell <>
PR c++/99294
* class.c (fixup_type_variants): Propagate mode, precision,
alignment & emptiness.
* (trees_out::type_node): Use TYPE_ALIGN_RAW.
(trees_in::tree_node): Rematerialize alignment here.
2021-02-27 Jason Merrill <>
PR c++/90333
* parser.c (cp_parser_lambda_declarator_opt): Accept GNU attributes
between () and ->.
2021-02-26 Jakub Jelinek <>
* parser.c (cp_parser_lambda_declarator_opt): Implement
P1102R2 - Down with ()! Make ()s optional before lambda specifiers
for -std={c,gnu}++2b or with pedwarn in earlier versions.
2021-02-26 Jakub Jelinek <>
PR c++/95451
* lambda.c (is_lambda_ignored_entity): Before checking for
2021-02-26 Jason Merrill <>
PR c++/98810
* pt.c (tsubst_copy) [VIEW_CONVERT_EXPR]: Add const
to a class non-type template argument that needs it.
2021-02-26 Patrick Palka <>
PR c++/98990
* pt.c (splice_late_return_type): Rebuild the entire return type
if we have to adjust the level of an auto within.
(type_uses_auto): Adjust call to find_type_usage.
* type-utils.h (find_type_usage): Revert r10-6571 change that
made this function return a pointer to the auto node.
2021-02-25 Patrick Palka <>
PR c++/99213
PR c++/94521
* error.c (dump_scope): Pass TFF_NO_TEMPLATE_BINDINGS instead of
TFF_NO_FUNCTION_ARGUMENTS when dumping a function scope.
2021-02-25 Patrick Palka <>
PR c++/99103
* pt.c (is_spec_or_derived): Drop cv-qualifiers from 'etype'.
(maybe_aggr_guide): Fix order of arguments to is_spec_or_derived.
2021-02-25 Marek Polacek <>
DR 1312
PR c++/99176
* constexpr.c (is_std_construct_at): New overload.
(is_std_allocator_allocate): New overload.
(cxx_eval_call_expression): Use the new overloads.
(cxx_eval_constant_expression): Reject casting
from void * as per DR 1312. Don't check can_convert.
2021-02-25 Iain Sandoe <>
PR c++/97587
* (struct param_info): Track rvalue refs.
(morph_fn_to_coro): Track rvalue refs, and call the promise
CTOR with the frame copy of passed parms.
2021-02-25 Iain Sandoe <>
PR c++/95822
* (morph_fn_to_coro): Unconditionally remove any
set throwing_cleanup marker.
2021-02-25 Nathan Sidwell <>
PR c++/99166
* (module_state::inform_cmi_p): Renamed field.
(module_state::do_import): Adjust.
(init_modules, finish_module_processing): Likewise.
(handle_module_option): Likewise.
2021-02-25 Nathan Sidwell <>
PR c++/98318
* (module_client::open_module_client): Fix typo
of fd init.
2021-02-24 Nathan Sidwell <>
PR c++/98718
* (ool): New indirection vector.
(loc_spans::maybe_propagate): Location is not optional.
(loc_spans::open): Likewise. Assert monotonically advancing.
(module_for_ordinary_loc): Use ool indirection vector.
(module_state::write_prepare_maps): Do not count empty macro
expansions. Elide empty spans.
(module_state::write_macro_maps): Skip empty expansions.
(ool_cmp): New qsort comparator.
(module_state::write): Create and destroy ool vector.
(name_pending_imports): Fix dump push/pop.
(preprocess_module): Likewise. Add more dumping.
(preprocessed_module): Likewise.
2021-02-24 Iain Sandoe <>
PR c++/96251
* (coro_common_keyword_context_valid_p): Suppress
error reporting when instantiating for a constexpr.
2021-02-23 Nathan Sidwell <>
PR c++/99208
* decl.c (name_unnamed_type): Check DECL identity, not IDENTIFIER
2021-02-23 Patrick Palka <>
PR c++/95468
* pt.c (tsubst_copy_and_build) <case BASELINK>: New case, copied
over from tsubst_copy.
2021-02-23 Patrick Palka <>
* pt.c (instantiation_dependent_expression_p): Check
processing_template_decl before calling
2021-02-22 Nathan Sidwell <>
PR c++/99174
* (struct module_state): Add visited_p flag.
(name_pending_imports): Use it to avoid duplicate requests.
(preprocess_module): Don't read preprocessor state if we failed to
load a module's config.
2021-02-22 Nathan Sidwell <>
PR c++/99153
* decl.c (duplicate_decls): Move DECL_MODULE_IMPORT_P propagation
to common-path.
* (set_defining_module): Add assert.
2021-02-19 Nathan Sidwell <>
PR c++/98741
* (pending_imports): New.
(declare_module): Adjust test condition.
(name_pending_imports): New.
(preprocess_module): Reimplement using pending_imports.
(preprocessed_module): Move name-getting to name_pending_imports.
* name-lookup.c (append_imported_binding_slot): Assert module
ordering is increasing.
2021-02-19 Nathan Sidwell <>
* (note_cmis): New.
(struct module_state): Add inform_read_p bit.
(module_state::do_import): Inform of CMI location, if enabled.
(init_modules): Canonicalize note_cmis entries.
(handle_module_option): Handle -flang-info-module-read=FOO.
2021-02-19 Jason Merrill <>
PR c++/96926
* call.c (perfect_conversion_p): Limit rvalueness
test to reference bindings.
2021-02-19 Jason Merrill <>
PR c++/96926
* call.c (perfect_conversion_p): New.
(perfect_candidate_p): New.
(add_candidates): Ignore templates after a perfect non-template.
2021-02-18 Nathan Sidwell <>
PR c++/99023
* (canonicalize_header_name): Use
(maybe_translate_include): Fix note_includes comparison.
(init_modules): Fix note_includes string termination.
2021-02-18 Jakub Jelinek <>
PR c++/99132
* cp-gimplify.c (cp_genericize_r) <case CALL_EXPR>: Use
cp_get_callee_fndecl_nofold instead of cp_get_callee_fndecl to check
for immediate function calls.
2021-02-17 Nathan Sidwell <>
PR c++/99023
* (struct macro_export): Add GTY markers.
(macro_exports): Likewise, us a va_gc Vector.
2021-02-17 Jakub Jelinek <>
PR sanitizer/99106
* init.c (build_zero_init_1): For flexible array members just return
NULL_TREE instead of returning empty CONSTRUCTOR with non-complete
2021-02-17 Nathan Sidwell <>
PR c++/99116
* name-lookup.c (do_pushdecl): Don't peek under template_parm
bindings here ...
(set_identifier_type_value_with_scope): ... or here.
(do_pushtag): Only set_identifier_type_value_with_scope at
non-class template parm scope, and use parent scope.
2021-02-17 Nathan Sidwell <>
PR c++/99071
* name-lookup.c (maybe_record_mergeable_decl): Deref the correct
2021-02-17 Patrick Palka <>
PR debug/96997
PR c++/94034
* tree.c (build_aggr_init_expr): Revert r10-7718 change.
2021-02-12 Nathan Sidwell <>
* (module_state::write_cluster): Check bindings for
imported using-decls.
2021-02-12 Nathan Sidwell <>
PR c++/99040
* (trees_in::decl_value): Call add_module_namespace_decl
for new namespace-scope entities.
(module_state::read_cluster): Don't call add_module_decl here.
* name-lookup.h (add_module_decl): Rename to ...
(add_module_namespace_decl): ... this.
* name-lookup.c (newbinding_bookkeeping): Move into ...
(do_pushdecl): ... here. Its only remaining caller.
(add_module_decl): Rename to ...
(add_module_namespace_decl): ... here. Add checking-assert for
circularity. Don't call newbinding_bookkeeping, just extern_c
checking and incomplete var checking.
2021-02-12 Nathan Sidwell <>
PR c++/99039
PR c++/99040
* cp-tree.h (CPTI_GLOBAL_TYPE): Delete.
(global_type_node): Delete.
(get_type_value): Delete.
* name-lookup.h (identifier_type_value): Delete.
* name-lookup.c (check_module_override): Don't
(do_pushdecl): Nor here.
(identifier_type_value_1, identifier_type_value): Delete.
(set_identifier_type_value_with_scope): Only
SET_IDENTIFIER_TYPE_VALUE for local and class scopes.
(pushdecl_nanmespace_level): Remove shadow stack nadgering.
* call.c (check_dtor_name): Use lookup_name.
* decl.c (cxx_init_decl_processing): Drop global_type_node.
* decl2.c (cplus_decl_attributes): Don't SET_IDENTIFIER_TYPE_VALUE
* init.c (get_type_value): Delete.
* pt.c (instantiate_class_template_1): Don't call pushtag or
(tsubst): Assert never an identifier.
(dependent_type_p): Drop global_type_node assert.
* typeck.c (error_args_num): Don't use IDENTIFIER_HAS_TYPE_VALUE
to determine ctorness.
2021-02-12 Jakub Jelinek <>
PR c++/97742
* parser.c (cp_parser_requirement_seq): Stop iterating after reaching
2021-02-12 Jason Merrill <>
PR c++/97246
PR c++/94546
* pt.c (extract_fnparm_pack): Check DECL_PACK_P here.
(register_parameter_specializations): Not here.
2021-02-11 Marek Polacek <>
PR c++/95888
* pt.c (lookup_template_class_1): Pass tf_none to tsubst when looking
for the partial instantiation.
2021-02-11 Jakub Jelinek <>
PR c++/99033
* init.c (build_zero_init_1): Handle zero initialiation of
flexible array members like initialization of [0] arrays.
Use integer_minus_onep instead of comparison to integer_minus_one_node
and integer_zerop instead of comparison against size_zero_node.
Formatting fixes.
2021-02-11 Marek Polacek <>
PR c++/99063
* semantics.c (finish_do_stmt): Check for unexpanded parameter packs.
2021-02-11 Patrick Palka <>
PR c++/97582
* name-lookup.c (op_unqualified_lookup): Handle an ambiguous
lookup result by discarding it if the first element is a
class-scope declaration, otherwise return it.
(push_operator_bindings): Handle an ambiguous lookup result by
doing push_local_binding on each element in the list.
2021-02-11 Marek Polacek <>
* parser.c (cp_parser_selection_statement): Use vec_free.
2021-02-10 Jakub Jelinek <>
PR c++/98988
PR c++/99031
* constexpr.c: Include cgraph.h.
(cxx_eval_call_expression): Call varpool_node::finalize_decl on
heap artificial vars.
(cxx_eval_outermost_constant_expr): Remove varpool nodes for
heap artificial vars.
2021-02-10 Nathan Sidwell <>
PR c++/99030
* pt.c (tsubst_copy) [VAR_DECL]: For a DECL_LOCAL_DECL_P T is the
answer if there's no local specialization.
2021-02-09 Nathan Sidwell <>
PR c++/98944
* (module_state::is_rooted): Rename to ...
(module_state::has_location): ... here. Adjust callers.
(module_state::read_partitions): Adjust validity check.
Don't overwrite a known location.
2021-02-09 Jason Merrill <>
PR c++/96905
* pt.c (mark_decl_instantiated): Exit early if consteval.
2021-02-09 Jason Merrill <>
PR c++/98326
PR c++/20408
* cp-gimplify.c (simple_empty_class_p): Don't touch an invisiref
2021-02-09 Jason Merrill <>
PR c++/98994
PR c++/97566
* constexpr.c (cxx_eval_store_expression): Only skip empty fields in
2021-02-08 Nathan Sidwell <>
* decl.c (start_cleanup_fn): Push function into
2021-02-08 Nathan Sidwell <>
PR c++/98531
* cp-tree.h (push_abi_namespace, pop_abi_namespace): Declare.
* decl.c (push_abi_namespace, pop_abi_namespace): Moved
from rtti.c, add default namespace arg.
(check_redeclaration_exception_specification): Allow a lazy
builtin's eh spec to differ from an lready-declared user
(declare_global_var): Use push/pop_abi_namespace.
(get_atexit_node): Push the fndecl into a namespace.
* rtti.c (push_abi_namespace, pop_abi_namespace): Moved to
2021-02-08 Marek Polacek <>
* cp-tree.h (CLASSTYPE_TI_TEMPLATE): Fix typo.
2021-02-05 Marek Polacek <>
PR c++/98947
* call.c (build_conditional_expr_1): Don't call mark_lvalue_use
on arg2/arg3.
* expr.c (mark_use) <case MODIFY_EXPR>: Don't check read_p when
issuing the -Wvolatile warning. Only set TREE_THIS_VOLATILE if
a warning was emitted.
2021-02-05 Marek Polacek <>
PR c++/96462
* name-lookup.c (lookup_using_decl): Hoist the destructor check.
2021-02-05 Jakub Jelinek <>
PR c++/97878
* decl.c (check_array_initializer): For structured bindings, require
the array type to be complete.
2021-02-04 Jason Merrill <>
PR c++/98717
* (build_concept_check_arguments): Remove assert.
(build_concept_check): Allow empty args.
2021-02-04 Tom Greenslade (thomgree) <>
PR c++/90926
* call.c (can_convert_array): Extend to handle all valid aggregate
initializers of an array; including by string literals, not just by
(build_aggr_conv): Call can_convert_array more often, not just in
brace-init-list case.
* typeck2.c (array_string_literal_compatible_p): New function.
(digest_init_r): call array_string_literal_compatible_p
* cp-tree.h: (array_string_literal_compatible_p): Declare.
2021-02-04 Jason Merrill <>
PR c++/98802
* pt.c (do_class_deduction): No aggregate guide if any_dguides_p.
2021-02-04 Jason Merrill <>
PR c++/95192
* pt.c (tsubst_attribute): Handle error.
(apply_late_template_attributes): Return false on error.
(tsubst_function_decl): Check its return value.
(tsubst_decl): Likewise.
(push_template_decl): Assert current_template_parms.
(tsubst_template_decl): Set current_template_parms.
2021-02-03 Marek Polacek <>
PR c++/98951
* call.c (struct z_candidate): Mark rewritten and reversed as const.
(struct NonPublicField): Mark operator() as const.
(struct NonTrivialField): Likewise.
2021-02-03 Jason Merrill <>
PR c++/98926
PR c++/98570
* pt.c (spec_hasher::equal): Set processing_template_decl.
* (check-g++-strict-gc): Add --param
2021-02-03 Marek Polacek <>
PR c++/98899
* parser.c (cp_parser_class_specifier_1): Use any possible
(cp_parser_save_noexcept): Initialize DEFPARSE_INSTANTIATIONS.
* pt.c (tsubst_exception_specification): Stash new_specs into
* tree.c (fixup_deferred_exception_variants): Use
2021-02-02 Jason Merrill <>
PR c++/98929
PR c++/96199
* error.c (dump_expr): Ignore dummy object.
* pt.c (tsubst_baselink): Handle dependent scope.
2021-02-01 Patrick Palka <>
PR c++/98295
* constexpr.c (cxx_eval_array_reference): Also set
new_ctx.object when setting new_ctx.ctor.
2021-02-01 Marek Polacek <>
PR c++/98355
* parser.c (cp_parser_has_attribute_expression): Use
uses_template_parms instead of type_dependent_expression_p.
2021-02-01 Jason Merrill <>
PR c++/98570
* cp-tree.h: Declare it.
* pt.c (comparing_dependent_aliases): New flag.
(template_args_equal, spec_hasher::equal): Set it.
(dependent_alias_template_spec_p): Assert that we don't
get non-types other than error_mark_node.
(instantiate_alias_template): SET_TYPE_STRUCTURAL_EQUALITY
on complex alias specializations. Set TYPE_DEPENDENT_P here.
(tsubst_decl): Not here.
* (module_state::read_cluster): Set
comparing_dependent_aliases instead of
* tree.c (cp_tree_equal): Remove comparing_specializations
module handling.
* typeck.c (structural_comptypes): Adjust.
(comptypes): Remove comparing_specializations handling.
2021-01-29 Nathan Sidwell <>
PR c++/98843
* (module_state_config): Add num_entities field.
(module_state::read_entities): The entity_ary span is
already allocated.
(module_state::write_config): Write num_entities.
(module_state::read_config): Read num_entities.
(module_state::write): Set config's num_entities.
(module_state::read_initial): Allocate the entity ary
span here.
(module_state::read_language): Do not set entity_lwm
2021-01-29 Marek Polacek <>
PR c++/96137
* parser.c (cp_parser_class_name): If parser->scope is
error_mark_node, return it, otherwise continue.
2021-01-28 Jakub Jelinek <>
PR c++/98841
* typeck.c (build_x_indirect_ref): For *this, return current_class_ref.
2021-01-28 Jakub Jelinek <>
PR c++/33661
PR c++/98847
* decl.c (cp_finish_decl): For register vars with asmspec in templates
call set_user_assembler_name and set DECL_HARD_REGISTER.
* pt.c (tsubst_expr): When instantiating DECL_HARD_REGISTER vars,
pass asmspec_tree to cp_finish_decl.
2021-01-28 Nathan Sidwell <>
PR c++/98770
* (trees_out::decl_value): Swap is_typedef & TYPE_NAME
check order.
(trees_in::decl_value): Do typedef frobbing only when installing
a new typedef, adjust is_matching_decl call. Swap is_typedef
& TYPE_NAME check.
(trees_in::is_matching_decl): Add is_typedef parm. Adjust variable
names and deal with typedef checking.
2021-01-27 Jason Merrill <>
PR c++/97874
* name-lookup.c (lookup_using_decl): Clean up handling
of dependency and inherited constructors.
(finish_nonmember_using_decl): Handle DECL_DEPENDENT_P.
* pt.c (tsubst_expr): Handle DECL_DEPENDENT_P.
2021-01-26 Jason Merrill <>
PR c++/97474
* call.c (type_passed_as): Don't mark invisiref restrict.
2021-01-26 Jason Merrill <>
PR c++/97566
PR c++/98463
* class.c (layout_class_type): An empty field gets size 0.
(is_empty_field): New.
(check_bases): Check it.
* cp-tree.h (is_empty_field): Declare it.
* constexpr.c (cxx_eval_store_expression): Check it.
(cx_check_missing_mem_inits): Likewise.
* init.c (perform_member_init): Likewise.
* typeck2.c (process_init_constructor_record): Likewise.
2021-01-25 Martin Sebor <>
PR c++/98646
* cvt.c (cp_fold_convert): Propagate TREE_NO_WARNING.
2021-01-25 Jason Merrill <>
PR c++/98463
* constexpr.c (get_or_insert_ctor_field): Add check.
(cxx_eval_store_expression): Handle discontinuity of refs.
2021-01-23 Anthony Sharp <>
* call.c (complain_about_access): Altered function.
* cp-tree.h (complain_about_access): Changed parameters of function.
(get_parent_with_private_access): Declared new function.
* search.c (get_parent_with_private_access): Defined new function.
* semantics.c (enforce_access): Modified function.
* typeck.c (complain_about_unrecognized_member): Updated function
arguments in complain_about_access.
2021-01-23 Patrick Palka <>
PR c++/97399
* cp-tree.h (shared_member_p): Adjust declaration.
* parser.c (cp_parser_init_declarator): If the storage class
specifier is sc_static, pass true for static_p to
(cp_parser_direct_declarator): Don't do inject_this_parm when
the declarator is a friend.
* search.c (shared_member_p): Change return type to bool and
adjust function body accordingly. Return false for a dependent
USING_DECL instead of aborting.
* semantics.c (finish_qualified_id_expr): Rely on shared_member_p
even when type-dependent.
2021-01-22 Marek Polacek <>
PR c++/96623
* parser.c (inject_parm_decls): Remove a redundant assignment.
(cp_parser_class_specifier_1): Clear current_class_{ptr,ref}
before calling inject_parm_decls.
2021-01-22 Jason Merrill <>
PR c++/98744
* call.c (make_base_init_ok): Use DECL_HAS_VTT_PARM_P.
2021-01-22 Jakub Jelinek <>
PR sanitizer/95693
* init.c (build_zero_init_1): Revert the 2018-03-06 change to
return build_zero_cst for reference types.
* typeck2.c (process_init_constructor_record): Instead call
build_zero_cst here during error recovery instead of build_zero_init.
2021-01-22 Marek Polacek <>
PR c++/98545
* mangle.c (write_member_name): Emit abi_warn_or_compat_version_crosses
warnings regardless of abi_version_at_least.
(write_expression): When the expression is a dependent name
and an operator name, write "on" before writing its name.
2021-01-22 Marek Polacek <>
PR c++/97966
* pt.c (instantiate_class_template_1): Instantiate members
marked with attribute used only after we're done instantiating
the class.
2021-01-21 Patrick Palka <>
PR c++/71879
* semantics.c (finish_decltype_type): Set up a cp_unevaluated
sentinel at the start of the function. Remove a now-redundant
manual adjustment of cp_unevaluated_operand.
2021-01-21 Nathan Sidwell <>
PR c++/98624
* (depset::hash::find_dependencies): Add
module arg.
(trees_out::core_vals): Check state before calling
(sort_cluster, module_state::write): Adjust
find_dependencies call.
2021-01-21 Jakub Jelinek <>
PR c++/98672
* constexpr.c (check_for_return_continue_data): Add break_stmt member.
(check_for_return_continue): Also look for BREAK_STMT. Handle
SWITCH_STMT by ignoring break_stmt from its body.
(potential_constant_expression_1) <case FOR_STMT>,
<case WHILE_STMT>: If the condition isn't constant true, check if
the loop body can contain a return stmt.
<case SWITCH_STMT>: Adjust check_for_return_continue_data initializer.
<case IF_STMT>: If recursion with tf_none is successful,
merge *jump_target from the branches - returns with highest priority,
breaks or continues lower. If then branch is potentially constant and
doesn't return, check the else branch if it could return, break or
2021-01-21 Nathan Sidwell <>
PR c++/98530
* name-lookup.c (lookup_class_binding): Rearrange a stat-hack.
2021-01-20 Nathan Sidwell <>
* (bytes_in::i, bytes_in::wi): Avoid left shift of
signed type.
2021-01-20 Patrick Palka <>
PR c++/95434
* pt.c (tsubst) <case TEMPLATE_TYPE_PARM>: If tsubsting
2021-01-20 Patrick Palka <>
PR c++/82613
* parser.c (cp_parser_class_head): Defer access checking when
parsing the base-clause until all bases are seen and attached
to the class type.
* pt.c (instantiate_class_template): Likewise when substituting
into dependent bases.
2021-01-20 Jakub Jelinek <>
PR c++/98742
* semantics.c (finish_omp_clauses) <case OMP_CLAUSE_DETACH>: If
error_operand_p, remove clause without further checking. Check
2021-01-19 Marek Polacek <>
PR c++/98659
* pt.c (maybe_instantiate_noexcept): Return false if FN is
2021-01-19 Marek Polacek <>
PR c++/98687
* name-lookup.c (push_using_decl_bindings): New, broken out of...
* name-lookup.h (push_using_decl_bindings): Update declaration.
* pt.c (tsubst_expr): Update the call to push_using_decl_bindings.
2021-01-19 Patrick Palka <>
PR c++/41437
PR c++/58993
* search.c (friend_accessible_p): If scope is a hidden friend
defined inside a dependent class, consider access from the
* parser.c (cp_parser_late_parsing_for_member): Don't push a
dk_no_check access state.
2021-01-19 Marek Polacek <>
PR c++/98333
* parser.c (cp_parser_class_specifier_1): Perform late-parsing
of NSDMIs before late-parsing of noexcept-specifiers.
2021-01-19 Nathan Sidwell <>
* (identifier): Merge overloads.
2021-01-19 Nathan Sidwell <>
PR c++/98624
* (trees_out::write_location): Make static.
2021-01-16 Kwok Cheung Yeung <>
* parser.c (cp_parser_omp_clause_detach): New.
(cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DETACH.
* pt.c (tsubst_omp_clauses): Handle OMP_CLAUSE_DETACH clause.
* semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_DETACH clause.
Prevent use of detach with mergeable and overriding the data sharing
mode of the event handle.
2021-01-15 Nathan Sidwell <>
PR c++/98538
* tree.c (cp_build_qualified_type_real): Propagate an array's
dependentness to the copy, if known.
2021-01-15 Jason Merrill <>
PR c++/98642
* call.c (unsafe_return_slot_p): Return int.
(init_by_return_slot_p): Split out from...
(unsafe_copy_elision_p_opt): New name for old meaning.
(build_over_call): Adjust.
(make_safe_copy_elision): New.
* typeck2.c (split_nonconstant_init_1): Elide copy from safe
* cp-tree.h: Adjust.
2021-01-15 Jason Merrill <>
* call.c (base_ctor_for, make_base_init_ok): New.
(build_over_call): Use make_base_init_ok.
2021-01-15 Jason Merrill <>
PR c++/63707
* tree.c (build_vec_init_expr): Don't call build_vec_init_elt
if we got a CONSTRUCTOR.
2021-01-15 Nathan Sidwell <>
PR c++/98591
* lang-specs.h: Fix handling of -fmodule-only with -fsyntax-only.
2021-01-14 Jason Merrill <>
* typeck2.c (process_init_constructor_record): Use fldtype
variable consistently.
2021-01-14 Nathan Sidwell <>
PR c++/98372
* tree.c (cp_tree_equal): Correct map_context logic.
2021-01-13 Marek Polacek <>
PR c++/98231
* name-lookup.c (push_using_decl_bindings): New.
* name-lookup.h (push_using_decl_bindings): Declare.
* pt.c (tsubst_expr): Call push_using_decl_bindings.
2021-01-13 Nathan Sidwell <>
PR c++/98626
* (module_add_import_initializers): Pass a
zero-element argument vector.
2021-01-12 Patrick Palka <>
PR c++/98611
* tree.c (cp_walk_subtrees) <case TEMPLATE_TYPE_PARM>: Visit
the template of a CTAD placeholder.
2021-01-12 Marek Polacek <>
PR c++/98620
* typeck2.c (process_init_constructor_record): Don't emit
-Wmissing-field-initializers warnings in unevaluated contexts.
2021-01-11 Jakub Jelinek <>
PR c++/98481
* class.c (find_abi_tags_r): Set *walk_subtrees to 2 instead of 1
for types.
(mark_abi_tags_r): Likewise.
* decl2.c (min_vis_r): Likewise.
* tree.c (cp_walk_subtrees): If *walk_subtrees_p is 2, look through
2021-01-08 Patrick Palka <>
PR c++/98551
* constexpr.c (cxx_eval_call_expression): Check CLASS_TYPE_P
instead of AGGREGATE_TYPE_P before calling replace_result_decl.
2021-01-08 Patrick Palka <>
PR c++/98515
* semantics.c (check_accessibility_of_qualified_id): Punt if
we're checking access of a scoped non-static member inside a
class template.
2021-01-07 Jakub Jelinek <>
PR c++/98329
* pt.c (tsubst_copy) <case BIT_CAST_EXPR>: Don't call
cp_build_bit_cast here, instead just build_min a BIT_CAST_EXPR and set
its location.
(tsubst_copy_and_build): Handle BIT_CAST_EXPR.
2021-01-07 Marek Polacek <>
PR c++/98441
* decl.c (grokdeclarator): Move the !funcdecl_p check inside the
!late_return_type block.
2021-01-07 Jason Merrill <>
* constexpr.c (cxx_bind_parameters_in_call): Add comment.
(cxx_eval_store_expression): Add comment.
2021-01-07 Jason Merrill <>
* call.c (has_next): Factor out from...
(strip_standard_conversion): And here.
(is_subseq): And here.
(build_conv): Check it.
(standard_conversion): Don't call build_conv
for ck_identity.
2021-01-06 Martin Sebor <>
PR c++/95768
* error.c (dump_expr): Call c_pretty_printer::unary_expression.
2021-01-05 Patrick Palka <>
* pt.c (unify) <case TEMPLATE_PARM_INDEX>: After walking into
the type of the NTTP, substitute into the type again. If the
type is still dependent, don't unify the NTTP.
2021-01-05 Jakub Jelinek <>
* (cc1plus-checksum, cc1plus$(exeext): Add
$(CODYLIB) after $(BACKEND).
2021-01-05 Jakub Jelinek <>
PR c++/98469
* constexpr.c (cxx_eval_constant_expression) <case BIT_CAST_EXPR>:
Punt if lval is true.
* semantics.c (cp_build_bit_cast): Call get_target_expr_sfinae on
the result if it has a class type.
2021-01-05 Marek Polacek <>
PR c++/82099
* pt.c (resolve_overloaded_unification): Call
maybe_instantiate_noexcept after instantiating the function
2021-01-05 Nathan Sidwell <>
* parser.c (cp_parser_module_declaration): Alter diagnostic
text to say where is permissable.
2021-01-05 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR c++/98316
* (cc1plus$(exeext)): Add $(CODYLIB), $(NETLIBS).
2021-01-02 Jan Hubicka <>
* cp-tree.h (cp_tree_c_finish_parsing): Declare.
* decl2.c (c_parse_final_cleanups): Call cp_tree_c_finish_parsing.
* tree.c (cp_tree_c_finish_parsing): New function.
2021-01-01 Jakub Jelinek <>
* ChangeLog-2020: Rotate ChangeLog. New file.
Copyright (C) 2021 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.