2018-03-29  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Backport from mainline
	2018-03-23  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Implement P0962
	* parser.c (cp_parser_perform_range_for_lookup): Change
	the condition for deciding whether to use members.

2018-03-23  Jason Merrill  <jason@redhat.com>

	PR c++/78489 - Substitution in wrong order
	PR c++/84489
	* pt.c (type_unification_real): Revert last two changes.

2018-03-09  Jason Merrill  <jason@redhat.com>

	PR c++/84785 - ICE with alias template and default targs.
	* pt.c (type_unification_real): Set processing_template_decl if
	saw_undeduced == 1.

2018-03-03  Jason Merrill  <jason@redhat.com>

	PR c++/84686 - missing volatile loads.
	* cvt.c (convert_to_void): Call maybe_undo_parenthesized_ref.

2018-03-02  Jason Merrill  <jason@redhat.com>

	PR c++/84489 - dependent default template argument
	* pt.c (type_unification_real): Handle early substitution failure.

2018-02-28  Jason Merrill  <jason@redhat.com>

	PR c++/71784 - ICE with ref-qualifier and explicit specialization.
	* pt.c (determine_specialization): Check ref-qualifier.

2018-02-26  Jason Merrill  <jason@redhat.com>

	PR c++/84441 - ICE with base initialized from ?:
	* call.c (unsafe_copy_elision_p): Handle COND_EXPR.

	PR c++/84520 - ICE with generic lambda in NSDMI.
	* lambda.c (lambda_expr_this_capture): Don't look for fake NSDMI
	'this' in a generic lambda instantiation.

2018-02-16  Jason Merrill  <jason@redhat.com>

	PR c++/84151 - unnecessary volatile load with static member.
	* call.c (build_new_method_call_1): Avoid loading from a volatile
	lvalue used as the object argument for a static member function.

2017-09-15  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2017-09-14  Jakub Jelinek  <jakub@redhat.com>

	PR c++/81314
	* cp-gimplify.c (omp_var_to_track): Look through references.
	(omp_cxx_notice_variable): Likewise.

2017-08-14  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71570
	* lambda.c (add_capture): Early return if we cannot capture by
	reference.

2017-07-04  Release Manager

	* GCC 6.4.0 released.

2017-06-24  Marek Polacek  <polacek@redhat.com>

	Backported from mainline
	2017-04-18  Marek Polacek  <polacek@redhat.com>

	PR c++/80241 - ICE with alignas pack expansion.
	* error.c (dump_expr): Handle TREE_LIST.
	* parser.c (cp_parser_std_attribute_list): Return error_mark if
	make_pack_expansion returns an error.

	PR c++/80244 - ICE with attribute in template alias.
	* tree.c (strip_typedefs): Handle UNDERLYING_TYPE.

	2017-04-10  Marek Polacek  <polacek@redhat.com>

	PR sanitizer/80348
	* typeck.c (cp_build_binary_op): Use NULL_TREE instead of NULL.  Set
	ORIG_TYPE earlier and not only when shortening.

	2017-04-07  Marek Polacek  <polacek@redhat.com>

	PR sanitizer/80348
	* typeck.c (cp_build_binary_op): Convert COP[01] to ORIG_TYPE.

2017-06-22  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2017-06-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/81154
	* semantics.c (handle_omp_array_sections_1, finish_omp_clauses):
	Complain about t not being a variable if t is OVERLOAD even
	when processing_template_decl.

	2017-06-13  Jakub Jelinek  <jakub@redhat.com>

	PR c++/80973
	* cp-gimplify.c (cp_genericize_r): Don't instrument MEM_REF second
	argument even if it has REFERENCE_TYPE.

	PR c++/80984
	* cp-gimplify.c (cp_genericize): Only look for VAR_DECLs in
	BLOCK_VARS (outer) chain.
	(cxx_omp_const_qual_no_mutable): Likewise.

2017-06-17  Jason Merrill  <jason@redhat.com>

	PR c++/70844 - -Wuseless-cast and inheriting constructor.
	* method.c (forward_parm): Suppress warn_useless_cast.

2017-06-08  Jakub Jelinek  <jakub@redhat.com>

	PR c/81006
	* semantics.c (handle_omp_array_sections_1): Convert TYPE_MAX_VALUE
	to sizetype before size_binop.

	PR c++/81011
	* cp-gimplify.c (cxx_omp_finish_clause): When changing clause
	to OMP_CLAUSE_SHARED, also clear OMP_CLAUSE_SHARED_FIRSTPRIVATE
	and OMP_CLAUSE_SHARED_READONLY flags.

2017-05-31  Jason Merrill  <jason@redhat.com>

	PR c++/80179 - ICE with initialized flexible array member.
	* constexpr.c (verify_ctor_sanity): Handle flexible array members.

2017-05-23  Jason Merrill  <jason@redhat.com>

	PR c++/80267 - ICE with nested capture of reference
	PR c++/60992
	* pt.c (tsubst_copy): Handle lookup finding a capture proxy.

	PR c++/80294 - ICE with constexpr and inheritance.
	* constexpr.c (reduced_constant_expression_p):
	A null constructor element is non-constant.
	(cxx_eval_indirect_ref): Don't VERIFY_CONSTANT before
	returning an empty base.

2017-05-05  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2017-04-11  Jakub Jelinek  <jakub@redhat.com>

	PR c++/80363
	* error.c (dump_expr): Handle VEC_COND_EXPR like COND_EXPR.

	2017-04-10  Jakub Jelinek  <jakub@redhat.com>

	PR c++/80176
	* tree.c (lvalue_kind): For COMPONENT_REF with BASELINK second
	operand, if it is a static member function, recurse on the
	BASELINK.

	2017-03-31  Jakub Jelinek  <jakub@redhat.com>

	PR c++/79572
	* cp-gimplify.c (cp_genericize_r): Sanitize INTEGER_CSTs with
	REFERENCE_TYPE.  Adjust ubsan_maybe_instrument_reference caller
	for NOP_EXPR to REFERENCE_TYPE.

	2017-03-22  Jakub Jelinek  <jakub@redhat.com>

	PR c++/80141
	* semantics.c (finish_omp_clause) <case OMP_CLAUSE_SIMDLEN,
	case OMP_CLAUSE_ALIGNED>: Call maybe_constant_value only when not
	processing_template_decl.

	2017-03-10  Jakub Jelinek  <jakub@redhat.com>

	PR c++/79896
	* decl.c (finish_enum_value_list): If value is error_mark_node,
	don't copy it and change its type.
	* init.c (constant_value_1): Return error_mark_node if DECL_INITIAL
	of CONST_DECL is error_mark_node.

	2017-02-22  Jakub Jelinek  <jakub@redhat.com>

	PR c++/79664
	* parser.c (cp_parser_omp_teams, cp_parser_omp_target): Use
	SET_EXPR_LOCATION on OMP_TARGET/OMP_TEAMS tree.
	* constexpr.c (potential_constant_expression_1): Handle
	OMP_*, OACC_* and CILK_* trees.

	2017-02-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/79639
	* constexpr.c (cxx_eval_store_expression): If *valp is a PTRMEM_CST,
	call cplus_expand_constant on it first.

	2017-02-16  Jakub Jelinek  <jakub@redhat.com>

	PR c++/79512
	* parser.c (cp_parser_omp_target): For -fopenmp-simd
	ignore #pragma omp target even when not followed by identifier.

2017-04-12  Jason Merrill  <jason@redhat.com>

	PR c++/80150 - ICE with overloaded variadic deduction.
	* pt.c (try_one_overload): Remove asserts.

	PR c++/77563 - missing ambiguous conversion error.
	* call.c (convert_like_real): Use LOOKUP_IMPLICIT.

	PR c++/79519 - ICE with deleted template friend.
	* decl.c (grokdeclarator): Complain about misplaced function
	definition using =, as well.

	PR c++/79640 - infinite recursion with generic lambda.
	* pt.c (tsubst_copy) [VAR_DECL]: Register the dummy instantiation
	before substituting its initializer.

	PR c++/80043 - ICE with -fpermissive
	* typeck.c (convert_for_assignment): Handle instantiate_type
	not giving an error.

	PR c++/78282 - auto template and pack expansion
	* pt.c (find_parameter_packs_r): Don't walk into the type of
	templates other than template template-parameters.

	PR c++/79607 - ICE with T{} initializer
	* decl.c (type_dependent_init_p): Check the type of a CONSTRUCTOR.

	PR c++/79566 - elaborated-type-specifier in range for
	* parser.c (cp_parser_simple_declaration): Fix check for type
	definition.

	PR c++/79580 - ICE with compound literal
	* parser.c (cp_parser_class_head): If we're in the middle of an
	expression, use ts_within_enclosing_non_class.

	PR c++/79508 - lookup error with member template
	* parser.c (cp_parser_template_name): Clear
	parser->context->object_type if we aren't doing lookup.

	PR c++/79050 - ICE with undeduced auto and LTO
	* decl.c (poplevel): Remove undeduced auto decls.

	PR c++/79461 - ICE with lambda in constexpr constructor
	* constexpr.c (build_data_member_initialization): Ignore
	initialization of a local variable.

2017-03-20  Nathan Sidwell  <nathan@acm.org>

	PR c++/80091
	* lambda.c (maybe_generic_this_capture): Capture when fn
	is an identifier node.

2017-03-15  Marek Polacek  <polacek@redhat.com>

	Backported from mainline
	2016-12-14  Marek Polacek  <polacek@redhat.com>

	PR c++/72775
	* init.c (perform_member_init): Diagnose member initializer for
	flexible array member. 

2017-03-14  Marek Polacek  <polacek@redhat.com>

	Backported from mainline
	2017-03-09  Marek Polacek  <polacek@redhat.com>

	PR c++/79900 - ICE in strip_typedefs
	* tree.c (strip_typedefs): Skip the attribute handling if T is
	a variant type which hasn't been updated yet.

	PR c++/79687
	* init.c (constant_value_1): Break if the variable has a dynamic
	initializer.

	Backported from mainline
	2017-01-31  Nathan Sidwell  <nathan@acm.org>

	PR c++/79264
	* lambda.c (maybe_generic_this_capture): Deal with template-id-exprs.
	* semantics.c (finish_member_declaration): Assert class is being
	defined.

	Backported from mainline
	2017-01-17  Nathan Sidwell  <nathan@acm.org>

	PR c++/61636
	* cp-tree.h (maybe_generic_this_capture): Declare.
	* lambda.c (resolvable_dummy_lambda): New, broken out of ...
	(maybe_resolve_dummy): ... here.  Call it.
	(maybe_generic_this_capture): New.
	* parser.c (cp_parser_postfix_expression): Speculatively capture
	this in generic lambda in unresolved member function call.
	* pt.c (tsubst_copy_and_build): Force hard error from failed
	member function lookup in generic lambda.

2017-03-07  Marek Polacek  <polacek@redhat.com>

	Backported from mainline
	2017-03-06  Marek Polacek  <polacek@redhat.com>

	PR c++/79796 - ICE with NSDMI and this pointer
	* call.c (build_over_call): Handle NSDMI with a 'this' by calling
	replace_placeholders.

2017-02-15  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2017-02-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/79429
	* parser.c (cp_parser_omp_ordered): Don't check for non-pragma_stmt
	non-pragma_compound context here.
	(cp_parser_omp_target): Likewise.
	(cp_parser_pragma): Don't call push_omp_privatization_clauses and
	parsing for ordered and target omp pragmas in non-pragma_stmt
	non-pragma_compound contexts.

	PR c/79431
	* parser.c (cp_parser_oacc_declare): Formatting fix.
	(cp_parser_omp_declare_target): Don't invoke symtab_node::get on
	automatic variables.

	2017-02-06  Jakub Jelinek  <jakub@redhat.com>

	PR c++/79377
	* tree.c (build_min_non_dep_op_overload): For POST{INC,DEC}REMENT_EXPR
	allow one fewer than expected arguments if flag_permissive.

2017-02-13  Nathan Sidwell  <nathan@acm.org>

	PR c++/79296 - ICE mangling localized template instantiation
	* decl2.c (determine_visibility): Use template fn context for
	local class instantiations.

2017-02-11  Jason Merrill  <jason@redhat.com>

	PR c++/78908 - template ops and bitfields
	* tree.c (build_min_non_dep): Use unlowered_expr_type.

2017-02-10  Jason Merrill  <jason@redhat.com>

	PR c++/78897 - constexpr union
	* constexpr.c (cxx_eval_store_expression): A store to a union member
	erases a previous store to another member.

2017-01-26  Jason Merrill  <jason@redhat.com>

	PR c++/79176 - lambda ICE with -flto -Os
	* decl2.c (vague_linkage_p): Handle decloned 'tors.
	* tree.c (decl_linkage): Likewise.

2017-01-20  Marek Polacek  <polacek@redhat.com>
	
	Backported from mainline
	2017-01-04  Marek Polacek  <polacek@redhat.com>

	PR c++/77545
	PR c++/77284
	* constexpr.c (potential_constant_expression_1): Handle CLEANUP_STMT.

2017-01-17  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2017-01-11  Jakub Jelinek  <jakub@redhat.com>

	PR c++/78341
	* parser.c (cp_parser_std_attribute_spec): Remove over-eager
	assertion.  Formatting fix.

	2017-01-04  Jakub Jelinek  <jakub@redhat.com>

	PR c++/78949
	* typeck.c (cp_build_unary_op): Call mark_rvalue_use on arg if it has
	vector type.

	PR c++/78693
	* parser.c (cp_parser_simple_declaration): Only complain about
	inconsistent auto deduction if auto_result doesn't use auto.

	PR c++/71182
	* parser.c (cp_lexer_previous_token): Use vec_safe_address in the
	assertion, as lexer->buffer may be NULL.

2017-01-11  Nathan Sidwell  <nathan@acm.org>

	PR c++/77812
	* name-lookup.c (set_namespace_binding_1): An overload of 1 decl
	is a new overload.

2016-12-21  Release Manager

	* GCC 6.3.0 released.

2016-12-14  Nathan Sidwell  <nathan@acm.org>

	PR c++/78701
	* pt.c (type_unification_real): Check tsubst arg doesn't have
	remaining template parms before converting it.

2016-12-08  Nathan Sidwell  <nathan@acm.org>

	PR c++/78551
	* constexpr.c (extract_string_elt): New.  Broken out of ...
	(cxx_eval_array_reference): ... here.  Call it.
	(cxx_eval_store_expression): Convert init by STRING_CST into
	CONSTRUCTOR, if needed.

2016-12-07  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2016-12-02  Jakub Jelinek  <jakub@redhat.com>

	PR c++/78649
	* pt.c (tsubst_init): Don't call build_value_init if decl's type
	is error_mark_node.

	2016-11-28  Jakub Jelinek  <jakub@redhat.com>
		    Jason Merrill  <jason@redhat.com>

	PR c++/72808
	* decl.c (finish_enum_value_list): Call fixup_type_variants on
	current_class_type after
	insert_late_enum_def_into_classtype_sorted_fields.

	2016-11-28  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77591
	* typeck.c (maybe_warn_about_returning_address_of_local): Optimize
	whats_returned through fold_for_warn.

	2016-11-23  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77739
	* cp-gimplify.c (cp_gimplify_tree) <case VEC_INIT_EXPR>: Pass
	false as handle_invisiref_parm_p to cp_genericize_tree.
	(struct cp_genericize_data): Add handle_invisiref_parm_p field.
	(cp_genericize_r): Don't wrap is_invisiref_parm into references
	if !wtd->handle_invisiref_parm_p.
	(cp_genericize_tree): Add handle_invisiref_parm_p argument,
	set wtd.handle_invisiref_parm_p to it.
	(cp_genericize): Pass true as handle_invisiref_parm_p to
	cp_genericize_tree.  Formatting fix.

	2016-11-18  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77285
	* mangle.c (mangle_tls_init_fn, mangle_tls_wrapper_fn): Call
	check_abi_tags.

	2016-10-31  Jakub Jelinek  <jakub@redhat.com>

	PR c++/78089
	* parser.c (cp_parser_postfix_expression): Replace return statement in
	the first switch with setting postfix_expression to the return
	expression and break;.

	2016-09-28  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77467
	* constexpr.c (enum constexpr_switch_state): New.
	(struct constexpr_ctx): Add css_state field.
	(label_matches): Add CTX and STMT arguments, remove I and
	DEFAULT_LABEL.  For CASE_LABEL_EXPR assert ctx->css_state != NULL,
	handle default labels according to css_state.
	(cxx_eval_statement_list): Remove statement skipping, label_matches
	and default_label handling code.
	(cxx_eval_loop_expr): Exit after first iteration even if
	switches (jump_target).
	(cxx_eval_switch_expr): Set up css_state field in ctx, if default
	label has been seen in the body, but no cases matched, evaluate
	the body second time.
	(cxx_eval_constant_expression): Handle stmt skipping and label_matches
	here.  Handle PREDICT_EXPR.  For MODIFY_EXPR or INIT_EXPR, assert
	statement is not skipped.  For COND_EXPR during skipping, don't
	evaluate condition, just the then block and if still skipping at the
	end also the else block.
	(cxx_eval_outermost_constant_expr): Adjust constexpr_ctx initializer.
	(is_sub_constant_expr): Likewise.

	2016-09-27  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77722
	* cp-gimplify.c (cp_ubsan_maybe_instrument_return): Instrument also
	functions that have just a STATEMENT_LIST instead of BIND_EXPR, or
	BIND_EXPR with some statement rather than STATEMENT_LIST as body.

	2016-09-20  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77638
	* parser.c (cp_parser_template_declaration_after_parameter): For 2
	argument operator"" template set ok to false for
	parm == error_mark_node.

	PR c++/77637
	* parser.c (cp_parser_std_attribute_list): Reject ... without
	preceding attribute.

	2016-09-16  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77482
	* error.c (dump_simple_decl): Only check DECL_DECLARED_CONCEPT_P
	if DECL_LANG_SPECIFIC is non-NULL.  Fix up formatting.

	PR c++/77375
	* class.c (check_bases): Set CLASSTYPE_HAS_MUTABLE if any
	TYPE_HAS_MUTABLE_P for any bases.

2016-12-06  Jason Merrill  <jason@redhat.com>

	PR c++/71274
	* decl2.c (maybe_instantiate_decl): Split out from mark_used.
	(decl_constant_var_p): Use it instead.

	PR c++/71515
	* pt.c (resolve_typename_type): Try to avoid calling
	currently_open_class.

	PR c++/77907
	* constexpr.c (cxx_eval_constant_expression): Use cp_fold_convert.

	PR c++/57728
	* pt.c (do_type_instantiation): Don't mess with non-user-provided
	member functions.

2016-11-18  Jason Merrill  <jason@redhat.com>

	PR c++/67631 - list-init and explicit conversions
	* semantics.c (finish_compound_literal): Call digest_init_flags.
	* typeck2.c (digest_init_flags): Add complain parm.
	(store_init_value): Pass it.

2016-11-17  Jason Merrill  <jason@redhat.com>

	PR c++/68377
	* parser.c (cp_parser_fold_expression): Check TREE_NO_WARNING.

2016-11-05  Martin Sebor  <msebor@redhat.com>

	PR c++/78039
	* class.c (diagnose_flexarrays): Avoid rejecting an invalid flexible
	array member with a hard error when it is followed by another member
	in a different struct, and instead issue just a pedantic warning.

2016-10-14  Martin Sebor  <msebor@redhat.com>

	PR c++/71912
	* class.c (struct flexmems_t):  Add members.
	(find_flexarrays): Add arguments.  Correct handling of anonymous
	structs.
	(diagnose_flexarrays): Adjust to issue warnings in addition to errors.
	(check_flexarrays): Add argument.
	(diagnose_invalid_flexarray): New functions.

2016-10-04  Martin Sebor  <msebor@redhat.com>

	PR c++/77804
	* init.c (warn_placement_new_too_small): Avoid assuming an array type
	has a constant size.

2016-09-22  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71979
	* class.c (build_base_path): Allow for lookup_base returning
	NULL_TREE.

2016-09-16  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2016-09-13  Jakub Jelinek  <jakub@redhat.com>

	PR c++/77553
	* constexpr.c (cxx_fold_pointer_plus_expression): New function.
	(cxx_eval_binary_expression): Use it for POINTER_PLUS_EXPR.
	(cxx_eval_pointer_plus_expression): Remove.
	(cxx_eval_constant_expression) <case POINTER_PLUS_EXPR>: Don't
	call cxx_eval_pointer_plus_expression.

2016-09-14  Nathan Sidwell  <nathan@acm.org>

	PR c++/77539
	* constexpr.c (get_fundef_copy): Use the original function for
	non-recursive evaluations.
	(save_fundef_copy): Always expect a slot to be available.

2016-08-22  Release Manager

	* GCC 6.2.0 released.

2016-08-13  Jason Merrill  <jason@redhat.com>

	PR c++/71972
	* constexpr.c (cxx_eval_array_reference): Handle looking for the
	value of an element we're currently modifying.

2016-08-11  Jakub Jelinek  <jakub@redhat.com>

	PR c++/72868
	* constexpr.c (label_matches): Handle case range expressions.

2016-08-11  Jason Merrill  <jason@redhat.com>

	PR c++/73456
	* logic.cc (non_atomic_constraint_p): Handle EXPR_PACK_EXPANSION.

2016-08-08  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/72800
	* lambda.c (add_capture): Check lambda_capture_field_type return
	value for error_mark_node.

2016-08-05  Nathan Sidwell  <nathan@acm.org>

	PR c++/68724
	* pt.c (unify): TRAIT_EXPR is an expr.

2016-08-04  Jason Merrill  <jason@redhat.com>

	PR c++/72415
	* pt.c (tsubst_pack_expansion): Pull a single pack expansion out
	of the TREE_VEC.

2016-07-29  Jason Merrill  <jason@redhat.com>

	PR c++/72457
	* init.c (expand_aggr_init_1): Only handle value-init of bases.
	* constexpr.c (build_data_member_initialization): Handle multiple
	initializers for the same field.

2016-07-25  Jason Merrill  <jason@redhat.com>

	PR c++/71576
	* call.c (convert_like_real): Use lvalue_kind.

	PR c++/71833
	* pt.c (coerce_template_parameter_pack): Fix logic for
	pack index.

2016-07-23  Jason Merrill  <jason@redhat.com>

	PR c++/55922
	PR c++/63151
	* init.c (expand_aggr_init_1): Handle list-initialization from {}.

	PR c++/70709
	* class.c (walk_subobject_offsets): Handle 0-length array.

	PR c++/70778
	* pt.c (tsubst): Also substitute into the template of a
	BOUND_TEMPLATE_TEMPLATE_PARM.

	PR c++/71738
	* pt.c (lookup_template_class_1): Handle getting template from tsubst.

	PR c++/71350
	* decl.c (reshape_init_r): Check complain for missing braces warning.

2016-07-22  Jason Merrill  <jason@redhat.com>

	PR c++/71748
	PR c++/52746
	* pt.c (tsubst_baselink): Call
	adjust_result_of_qualified_name_lookup for unqualified
	destructors.

2016-07-21  Jason Merrill  <jason@redhat.com>

	PR c++/69223
	* semantics.c (apply_deduced_return_type): Call
	complete_type_or_else before building the new RESULT_DECL.

	PR c++/71630
	* pt.c (instantiate_decl): Fix pattern_defined for namespace scope
	variable templates.

	PR c++/71913
	* call.c (unsafe_copy_elision_p): It's OK to elide when
	initializing an unknown object.

2016-07-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71728
	* constexpr.c (potential_constant_expression_1) <case GOTO_EXPR>:
	Replace assert with test, return false if the goto isn't break
	or continue.  Formatting fix.

2016-07-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71941
	* cp-gimplify.c (cp_genericize): For nested cp_genericize calls
	save/restore bc_label array.

2016-07-21  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70822
	PR c++/70106
	* cp-tree.h (REF_PARENTHESIZED_P): Make this flag apply to
	SCOPE_REFs too.
	* pt.c (tsubst_qualified_id): If REF_PARENTHESIZED_P is set
	on the qualified_id then propagate it to the resulting
	expression.
	(do_auto_deduction): Check REF_PARENTHESIZED_P on SCOPE_REFs
	too.
	* semantics.c (force_paren_expr): If given a SCOPE_REF, just set
	its REF_PARENTHESIZED_P flag.

2016-07-21  Andrew Sutton  <andrew.n.sutton@gmail.com>
	    Jason Merrill  <jason@redhat.com>

	Improving concepts performance and diagnostics.
	PR c++/67565
	PR c++/67579
	PR c++/71843
	* cp-tree.def (CHECK_CONSTR): New.
	* cp-tree.h (CHECK_CONSTR_CONCEPT): New.
	(CHECK_CONSTR_ARGS): New.
	* constraint.cc (make_predicate_constraint): Remove in favor of
	normalize_expression.
	(resolve_constraint_check): Actually return error_mark_node when
	resolution fails.
	(resolve_variable_concept_check): Perform coercion as if processing
	a template. Also return errors on resolution failure.
	(lift_*): Remove all of these functions. Don't unnecessarily inline
	concepts.
	(learn_*): Add facilities to memoize implications for subsumption
	during normalization.
	(expanding_concept): New.
	(expand_concept): New. Return the inlined and normalized definition
	of a concept when needed.
	(transform_*, xform_*): Rename to normalize_* to better reflect the
	responsibility of those functions.
	(normalize_template_id_expression): Check for non-boolean operands
	when possible. Generate check constraints instead of normal variable
	references.
	(normalize_call_expression): Report errors when resolution fails.
	(check_for_logical_overloads): Rewrite this check to more accurately
	report the error.
	(normalize_atom): Check for overloaded calls and invalid types before
	determining if the expression refers to a concept.
	(build_constraints): Don't cache normalized constraints or decomposed
	assumptions.
	(finish_shorthand_constraint): Return a normalized expression instead
	of a predicate constraint.
	(finish_template_introduction): Same.
	(placeholder_extract_concept_and_args): Rewrite this since we only
	ever get check constraints here.
	(equivalent_placeholder_constraints): Rewrite in terms of check
	constraints, and handle error_mark_nodes correctly.
	(tsubst_check_constraint, tsubst_expr_constr, tsubst_type_constr)
	(tsubst_implicit_conversion_constr)
	(tsubst_argument_deduction_constr, tsubst_exception_constr)
	(tsubst_parameterized_constraint, tsubst_constraint): New.
	(tsbust_conjunection): Replace with tsubst_logical_operator and
	actually generate the right kind of constraint.
	(tsubst_requirement_body): Reverse the order of substituted arguments
	so that they appear in the order written (helps diagnostics).
	(satisfy_check_constraint): New.
	(satisfy_conjunction): Simplify.
	(satisfy_disjunction): Same.
	(satisfy_constraint_1): Handle check constraints.
	(eval_constr): New (private) global state.
	(evaluating_constraints_sentinel): New. Manages eval_constr.
	(satisfy_constraint): Add timing variables.
	(satisfy_associated_constraints): Add hooks for memoization.
	(evaluate_function_concept): Build a check constraint instead of
	normalizing its definition.
	(evaluate_variable_concept): Same.
	(evaluate_constraint_expression): Normalize, but in the current
	declaration processing context.
	(evaluating_constraints_p): New.
	(elide_constraint_failure_p): Actually emit constraint_thresh errors.
	(diagnose_*): Remove artificial indentation. Add a new parameter to
	each that tracks the current (complete) constraint prior to any
	substitutions.
	(diagnose_expression): Removed.
	(diagnose_call_expression): Same.
	(diagnose_template_id): Same.
	(diagnose_template_id): New.
	(diagnose_logical_constraint): New.
	(diagnose_expression_constraint): Show the original expression.
	(diagnose_type_constraint): Show the original type.
	(diagnose_implicit_conversion_constraint): Be specific about
	failures, don't re-diagnose a known-to-be-failed substitutions,
	and manage elisions properly.
	(diagnose_argument_deduction_constraint): Same.
	(diagnose_exception_constraint): Same.
	(diagnose_parameterized_constraint): Same.
	(constraint_p): Allow EXPR_PACK_EXPANSION.
	* logic.cc (next_by_distance): Removed. No longer used.
	(any_p): Renamed from any_of.
	(term_entry, term_hasher): New.
	(term_list): Rewrite to include a hash table for quick lookup.
	Also, make less stateful.
	(proof_state): Extend to allow goals to be discharged once
	satisfied.
	(non_atomic_constraint_p): New.
	(any_non_atomic_constraints_p): New.
	(...rest...): Previous implementation completely replaced with an
	iterative algorithm that opportunistically prunes the search space
	before committing to using more memory.
	* parser.c: (cp_parser_type_parameter): Normalize constraints.
	(cp_parser_explicit_template_declaration): Same.
	* pt.c: (finish_template_variable): Be less redundant with this error
	message.
	(template_args_equal): No longer static.
	(tsubst_decl): Don't try to find specializations of variables that
	have already been instantiated.
	(build_non_dependent_expr): Avoid infinite recursion during concept
	expansion.
	(make_constrained_auto): Normalize constraints.
	(do_auto_deduction): When doing auto deduction from a
	partial-concept-id, be sure to include the explicit args checking
	the constraints.
	(constraint_sat_*): New. Memoize satisfied constraints.
	(concept_spec_*): New. Memoize expressions associated with a concept
	specialization.
	(constraint_memos, concept_memos): New.
	(lookup_constraint_satisfaction, memoize_constraint_satisfaction): New.
	(lookup_concept_satisfaction, memoize_concept_satisfaction): New.
	(get_concept_expansion, save_concept_expansion): New.
	(hash_subsumption_args): New.
	(comp_subsumption_args): New.
	(subsumption_*): New. Memoize parts of the subsumption relation.
	(lookup_subsumption_result, save_subsumption_result): New.
	(init_constraint_processing): Initialize memo tables.
	(get_constraints): Shortcut if !flag_concepts.
	* decl.c (grokfndecl): Normalize constraints.
	* error.c (dump_simple_decl): Print "concept" when appropriate.
	(dump_function_decl): Same.
	(dump_template_decl): Don't write requirements when we're not
	printing the header.
	(dump_expr): Handle fold expressions.
	* cxx-pretty-print.c (cxx_pretty_printer::expression): Handle
	fold expressions.
	(get_fold_operator): New.
	(pp_cxx_unary_left_fold_expression): New.
	(pp_cxx_unary_right_fold_expression): New.
	(pp_cxx_binary_fold_expression): New.
	(pp_cxx_check_constraint): New.
	(pp_cxx_*_constraint): Rewrite the grammar of internal constraints
	to make them easier to read when debugging.
	* search.c (accessible_p): Don't shortcut when evaluating constraints.
	* tree.c (cp_tree_equal): Handle CHECK_CONSTR.

2016-07-21  Jason Merrill  <jason@redhat.com>

	PR c++/70781
	* parser.c (cp_parser_lambda_expression): Unset OK if there was an
	error parsing the lambda-declarator.

	PR c++/71896
	* constexpr.c (cxx_eval_binary_expression): Handle comparison
	between lowered and unlowered PTRMEM_CST.

	PR c++/71092
	* constexpr.c (cxx_eval_call_expression): Fail quietly when cgraph
	threw away DECL_SAVED_TREE.

	PR c++/71117
	Core 2189
	* call.c (add_template_conv_candidate): Disable if there are
	viable candidates.

	PR c++/71495
	* call.c (convert_like_real): Mask complain.

	PR c++/71511
	* typeck2.c (cxx_incomplete_type_diagnostic): Handle DECLTYPE_TYPE.

	PR c++/71513
	* pt.c (tsubst_attributes): Fix loop logic.

	PR c++/71604
	PR c++/54430
	* parser.c (cp_parser_range_for): Modify IDENTIFIER_BINDING directly.
	(cp_parser_simple_declaration): Diagnose type definition in
	for-range-declaration.

	PR c++/71711
	* operators.def: Add *_FOLD_EXPR.
	* cp-tree.h (FOLD_EXPR_P): Parenthesize.
	* mangle.c (write_expression): Handle fold-expressions.
	* pt.c (tsubst_unary_left_fold, tsubst_binary_left_fold)
	(tsubst_unary_right_fold, tsubst_binary_right_fold): Handle
	partial instantiation.

	PR c++/71814
	* mangle.c (write_expression): Handle sizeof... an argument pack.

	PR c++/71718
	* pt.c (push_tinst_level_loc): Set at_eof before fatal_error.

	PR c++/70824
	* init.c (constant_value_1): Don't instantiated DECL_INITIAL of
	artificial variables.

	* lambda.c (maybe_add_lambda_conv_op): Fix null object argument.

2016-07-20  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71909
	* parser.c (cp_parser_save_member_function_body): Consume
	__transaction_relaxed or __transaction_atomic with optional
	attribute.  Only skip catch with block if try keyword is seen.

2016-07-19  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2016-07-18  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71835
	* call.c (build_op_call_1): Use convert_like_with_context only
	if cand->fn is a decl.

	PR c++/71828
	* constexpr.c (cxx_eval_constant_expression) <case REALPART_EXPR>:
	For lval don't use cxx_eval_unary_expression and instead recurse
	and if needed rebuild the reference.

	PR c++/71822
	* cp-gimplify.c (cp_gimplify_expr) <case VEC_INIT_EXPR>: Recursively
	fold *expr_p before genericizing it.

	PR c++/71871
	* typeck.c (build_x_conditional_expr): Revert the 2012-10-25 change.

	2016-07-07  Jakub Jelinek  <jakub@redhat.com>
		    Kai Tietz  <ktietz70@googlemail.com>

	PR c++/70869
	PR c++/71054
	* cp-gimplify.c (cp_genericize_r): For DECL_EXPR for non-static
	artificial vars, genericize their initializers.

2016-06-21  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2016-06-17  Jakub Jelinek  <jakub@redhat.com>

	* semantics.c (handle_omp_array_sections_1): Don't ICE when
	processing_template_decl when checking for bitfields and unions.
	Look through REFERENCE_REF_P as base of COMPONENT_REF.
	(finish_omp_clauses): Look through REFERENCE_REF_P even for
	array sections with COMPONENT_REF bases.

	2016-06-16  Jakub Jelinek  <jakub@redhat.com>

	* parser.c (cp_parser_omp_var_list_no_open): Call
	convert_from_reference before cp_parser_postfix_dot_deref_expression.
	* semantics.c (finish_omp_clauses): Don't ICE when
	processing_template_decl when checking for bitfields and unions.
	Look through REFERENCE_REF_P as base of COMPONENT_REF.

	2016-06-14  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71528
	* decl.c (duplicate_decls): For DECL_INITIALIZED_P non-external
	olddecl vars, preserve their TREE_READONLY bit.

2016-06-14  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70572
	* decl.c (cp_finish_decl): Check do_auto_deduction return value
	and return immediately in case of erroneous code.

2016-06-14  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71516
	* decl.c (complete_vars): Handle gracefully type == error_mark_node.

2016-06-10  Thomas Schwinge  <thomas@codesourcery.com>

	PR c/71381
	Backport from trunk r237290:
	* parser.c (cp_parser_omp_var_list_no_open) <OMP_CLAUSE__CACHE_>:
	Loosen checking.

2016-06-08  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71442
	* pt.c (tsubst_copy): Only set TREE_USED on DECLs.

2016-06-06  Jakub Jelinek  <jakub@redhat.com>
	    Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70847
	PR c++/71330
	PR c++/71393
	* cp-gimplify.c (cp_fold_r): Set *walk_subtrees = 0 and return NULL
	right after cp_fold call if cp_fold has returned the same stmt
	already in some earlier cp_fold_r call.
	(cp_fold_function): Add pset automatic variable, pass its address
	to cp_walk_tree.

2016-06-02  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71372
	* cp-gimplify.c (cp_fold): For INDIRECT_REF, if the folded expression
	is INDIRECT_REF or MEM_REF, copy over TREE_READONLY, TREE_SIDE_EFFECTS
	and TREE_THIS_VOLATILE flags.  For ARRAY_REF and ARRAY_RANGE_REF, copy
	over TREE_READONLY, TREE_SIDE_EFFECTS and TREE_THIS_VOLATILE flags
	to the newly built tree.

2016-06-02  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70972
	* method.c (forward_parm): Use cp_build_reference_type.

2016-05-31  Jason Merrill  <jason@redhat.com>

	PR c++/71166
	* decl2.c (c_parse_final_cleanups): Don't call fini_constexpr.

	PR c++/71227
	* pt.c (check_explicit_specialization): Give better diagnostic about
	specializing a hidden friend.

	PR c++/60095
	PR c++/69515
	PR c++/69009
	* pt.c (instantiate_template_1): Don't put the partial
	specialization in DECL_TI_TEMPLATE.
	(partial_specialization_p, impartial_args): Remove.
	(regenerate_decl_from_template): Add args parm.
	(instantiate_decl): Look up the partial specialization again.

	PR c++/71173
	PR c++/70522
	* cp-tree.h (enum tag_types): Add scope_type.
	* parser.c (cp_parser_class_name): Use scope_type.
	(prefer_type_arg): Handle scope_type.
	(cp_parser_lookup_name): Use prefer_type_arg.
	* name-lookup.c (lookup_qualified_name): Change bool is_type_p to
	int prefer_type, use lookup_flags.
	* name-lookup.h: Adjust.

	PR c++/70584
	* cp-gimplify.c (cp_fold_maybe_rvalue): Loop in case cp_fold
	returns a decl.
	(cp_fold) [INDIRECT_REF]: Call maybe_undo_parenthesized_ref.

	PR c++/70735
	* pt.c (tsubst_copy): Just return a local variable from
	non-template context.  Don't call rest_of_decl_compilation for
	duplicated static locals.
	(tsubst_decl): Set DECL_CONTEXT of local static from another
	function.

2016-05-31  Martin Sebor  <msebor@redhat.com>

	PR c++/71306
	* init.c (warn_placement_new_too_small): Handle placement new arguments
	that are elements of arrays more carefully.  Remove a pointless loop.

2016-05-30  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71349
	* parser.c (cp_parser_omp_for): Don't disallow nowait clause
	when combined with target construct.
	(cp_parser_omp_parallel): Pass cclauses == NULL as last argument
	to cp_parser_omp_all_clauses.

2016-05-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71105
	* lambda.c (maybe_add_lambda_conv_op): Early return also when
	LAMBDA_EXPR_DEFAULT_CAPTURE_MODE != CPLD_NONE.

2016-05-24  Martin Sebor  <msebor@redhat.com>

	PR c++/71147
	* decl.c (layout_var_decl, grokdeclarator): Use
	complete_or_array_type_p.
	* pt.c (instantiate_class_template_1): Try to complete the element
	type of a flexible array member.
	(can_complete_type_without_circularity): Handle arrays of unknown bound.
	* typeck.c (complete_type): Also complete the type of the elements of
	arrays with an unspecified bound.

2016-05-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/69872
	* typeck2.c (check_narrowing): Check pedwarn return value.

2016-05-24  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71257
	* semantics.c (finish_omp_clauses) <case OMP_CLAUSE_LINEAR>:
	For OMP_CLAUSE_LINEAR_REF don't require type to be
	integral or pointer.

2016-05-23  Jason Merrill  <jason@redhat.com>

	PR c++/70344
	* constexpr.c (cxx_eval_call_expression): Check for
	fun == current_function_decl again.

2016-05-19  David Malcolm  <dmalcolm@redhat.com>

	Backport from trunk r236483.
	PR c++/71184
	* parser.c (cp_parser_operator): For array new/delete, check that
	cp_parser_require returned a non-NULL token before dereferencing
	it.

2016-05-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	Backport from mainline
	2016-05-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* decl.c (finish_enum_value_list): Use the specified mode.

2016-05-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70466
	* call.c (convert_like_real): Check that we are actually converting
	from an init list.

2016-04-29  Cesar Philippidis  <cesar@codesourcery.com>

	PR middle-end/70626
	* parser.c (cp_parser_oacc_loop): Don't augment mask with
	OACC_LOOP_CLAUSE_MASK.
	(cp_parser_oacc_kernels_parallel): Update call to
	c_oacc_split_loop_clauses.

2016-04-28  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70540
	* semantics.c (process_outer_var_ref): Unconditionally return
	error_mark_node when mark_used returns false.

2016-04-27  Release Manager

	* GCC 6.1.0 released.

2016-04-26  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/70704
	* pt.c (build_non_dependent_expr): Temporarily disable flag_checking
	guarded code.

2016-04-22  Jason Merrill  <jason@redhat.com>

	PR c++/68206
	PR c++/68530
	* constexpr.c (potential_constant_expression_1): Handle LOOP_EXPR
	and GOTO_EXPR.

	PR c++/70522
	* name-lookup.c (qualified_lookup_using_namespace): Look through
	hidden names.

2016-04-19  Jason Merrill  <jason@redhat.com>

	PR c++/66543
	* expr.c (mark_exp_read): Handle NON_DEPENDENT_EXPR.
	* pt.c (make_pack_expansion): Call mark_exp_read.
	* semantics.c (finish_id_expression): Call mark_type_use in
	unevaluated context.

2016-04-18  Jason Merrill  <jason@redhat.com>

	PR c++/70690
	PR c++/70528
	* class.c (type_maybe_constexpr_default_constructor): New.
	(type_has_constexpr_default_constructor): Revert.

	PR c++/70505
	* pt.c (tsubst_baselink): Give the new TEMPLATE_ID_EXPR
	unknown_type_node, too.

2016-04-15  Jason Merrill  <jason@redhat.com>

	PR c++/70685
	* constexpr.c (get_fundef_copy): Handle null *slot.

2016-04-15  Jason Merrill  <jason@redhat.com>
	    Nathan Sidwell  <nathan@acm.org>

	PR c++/70594
	* constexpr.c (constexpr_call_table): Preserve in GC.
	(struct fundef_copy, struct fundef_copies_table_t):	Delete.
	(fundef_copies_table): Preserve in GC. Change to pointer to
	tree->tree hash.
	(maybe_initialize_fundef_copies_table): Adjust.
	(get_fundef_copy): Return a TREE_LIST.  Use non-inserting search.
	(save_fundef_copy): Adjust for a TREE_LIST.
	(cxx_eval_call_expression): Adjust for a fundef_copy TREE_LIST.
	(fini_constexpr): New.
	* cp-tree.h (fini_constexpr): Declare.
	* decl2.c (c_parse_final_cleanups): Call fini_constexpr.

2016-04-15  Jakub Jelinek  <jakub@redhat.com>

	PR c/70436
	* parser.c (cp_parser_pragma): Add IF_P argument, pass it down
	where needed.
	(cp_parser_declaration_seq_opt, cp_parser_member_specification_opt,
	cp_parser_objc_interstitial_code, cp_parser_omp_declare_simd,
	cp_parser_oacc_routine): Adjust cp_parser_pragma callers.
	(cp_parser_statement): Likewise.  Adjust cp_parser_cilk_for caller.
	(cp_parser_omp_structured_block): Add IF_P argument, pass it down to
	cp_parser_statement.
	(cp_parser_oacc_data, cp_parser_oacc_host_data, cp_parser_oacc_loop,
	cp_parser_oacc_kernels_parallel, cp_parser_omp_critical,
	cp_parser_omp_simd, cp_parser_omp_for, cp_parser_omp_master,
	cp_parser_omp_ordered, cp_parser_omp_parallel, cp_parser_omp_single,
	cp_parser_omp_task, cp_parser_omp_taskgroup, cp_parser_omp_distribute,
	cp_parser_omp_teams, cp_parser_omp_target_data, cp_parser_omp_target,
	cp_parser_omp_taskloop, cp_parser_omp_construct,
	cp_parser_cilk_grainsize, cp_parser_cilk_simd, cp_parser_cilk_for):
	Add IF_P argument, pass it down where needed.
	(cp_parser_omp_for_loop): Likewise.  Clear IF_P if nbraces.
	(cp_parser_omp_sections_scope): Adjust cp_parser_omp_structured_block
	calls.

2016-04-14  Jason Merrill  <jason@redhat.com>

	PR c++/70494
	* decl.c (cxx_maybe_build_cleanup): Handle non-decls.
	* typeck2.c (split_nonconstant_init_1): Use it.

	PR c++/70528
	* class.c (type_has_constexpr_default_constructor): Return true
	for an implicitly declared constructor.

	PR c++/70622
	* parser.c (cp_parser_init_declarator): Add auto_result parm.
	(cp_parser_simple_declaration): Pass it.
	(strip_declarator_types): New.

	PR c++/70543
	* pt.c (value_dependent_expression_p) [VAR_DECL]: A type-dependent
	initializer also makes the variable value-dependent.

	PR c++/70648
	* constexpr.c (cxx_eval_store_expression): Also copy
	CONSTRUCTOR_NO_IMPLICIT_ZERO.

2016-04-14  Martin Sebor  <msebor@redhat.com>

	PR c++/69517
	PR c++/70019
	PR c++/70588
	* cp-tree.h, decl.c, init.c, typeck2.c: Revert.

2016-04-14  Jason Merrill  <jason@redhat.com>

	* call.c, decl.c, error.c, cp-tree.h, decl.c: Revert empty
	parameter ABI change.

2016-04-13  Martin Sebor  <msebor@redhat.com>

	PR c++/69517
	PR c++/70019
	PR c++/70588
	* cp-tree.h (throw_bad_array_length, build_vla_check): Declare new
	functions.
	* decl.c (check_initializer, cp_finish_decl): Call them.
	(reshape_init_r): Reject incompletely braced intializer-lists
	for VLAs.
	* init.c (throw_bad_array_length, build_vla_check)
	(build_vla_size_check, build_vla_init_check): Define new functions.
	* typeck2.c (split_nonconstant_init_1): Use variably_modified_type_p()
	to detect a VLA.
	(store_init_value): Same.

2016-04-13  Jason Merrill  <jason@redhat.com>

	Warn about empty parameter ABI with -Wabi=9.
	* call.c (empty_class_msg, mark_for_abi_warning)
	(warn_empty_class_abi): New.
	(build_call_a): Use them.
	* decl.c (store_parm_decls): Use mark_for_abi_warning.
	* error.c (pp_format_to_string): New.

	Pass empty class parameters like C.
	* call.c (pass_as_empty_struct, empty_class_arg): New.
	(type_passed_as, build_x_va_arg): Use pass_as_empty_struct.
	(build_call_a): Use empty_class_arg.
	* cp-tree.h (CPTI_EMPTY_STRUCT, empty_struct_type): New.
	* decl.c (cxx_init_decl_processing): Create empty_struct_type.

2016-04-13  Jason Merrill  <jason@redhat.com>

	PR c++/70627
	* decl.c (start_enum): Don't change an existing ENUM_UNDERLYING_TYPE.

2016-04-13  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/70635
	* pt.c (resolve_typename_type): Fix typos in infinite recursion
	avoidance mechanism.

2016-04-13  Jason Merrill  <jason@redhat.com>

	PR c++/70634
	* pt.c (instantiation_dependent_uneval_expression_p): Split out
	from instantiation_dependent_expression_p.
	(value_dependent_expression_p): Use it for unevaluated operands.
	(instantiation_dependent_r): Don't check value-dependence.
	(instantiation_dependent_expression_p): Check
	value-dependence of the expression as a whole.
	* cp-tree.h: Declare instantiation_dependent_uneval_expression_p.
	* semantics.c (finish_decltype_type): Use it.

	* constexpr.c (potential_nondependent_constant_expression): New.
	(potential_nondependent_static_init_expression): New.
	(maybe_constant_value_1, fold_non_dependent_expr)
	(maybe_constant_init): Use them.
	* pt.c (instantiate_non_dependent_expr_sfinae)
	(instantiate_non_dependent_or_null, convert_nontype_argument): Use
	them.
	* cp-tree.h: Declare them.

2016-04-13  Jakub Jelinek  <jakub@redhat.com>

	PR c++/70594
	* decl.c (pop_labels_1): Removed.
	(note_label, sort_labels): New functions.
	(pop_labels): During named_labels traversal, just push the slot
	pointers into a vector, then qsort it by DECL_UID and only then
	call pop_label and chain it into BLOCK_VARS.

2016-04-13  Jason Merrill  <jason@redhat.com>

	PR c++/70615
	* cp-gimplify.c (cp_genericize_r): Expand PTRMEM_CST here.
	(cp_gimplify_expr): Not here.

2016-04-12  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70610
	* tree.c (lvalue_kind) [NON_DEPENDENT_EXPR]: Unconditionally
	recurse into it.
	* typeck.c (build_x_conditional_expr): Unconditionally remember
	that the result is an lvalue or xvalue.

2016-04-12  Jason Merrill  <jason@redhat.com>

	* class.c (is_really_empty_class): A zero-length array is empty.
	An unnamed bit-field doesn't make a class non-empty.

2016-04-12  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/68722
	* parser.c (cp_parser_cache_defarg): When file ends in default
	argument simply return error_mark_node.

2016-04-12  Nathan Sidwell  <nathan@acm.org>

	PR c++/70501
	* constexpr.c (cxx_eval_bare_aggregate): Handle VECTOR_TYPE
	similarly to PMF.

2016-04-11  Jason Merrill  <jason@redhat.com>

	* mangle.c (decl_is_template_id): The template itself counts as a
	template-id.

2016-04-08  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70590
	PR c++/70452
	* constexpr.c (cxx_eval_outermost_expression): Call unshare_expr
	on the result if it's not a CONSTRUCTOR.

2016-04-07  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70452
	* constexpr.c (find_constructor): New function.
	(unshare_constructor): New function.
	(cxx_eval_call_expression): Use unshare_constructor instead of
	unshare_expr.
	(find_array_ctor_elt): Likewise.
	(cxx_eval_vec_init_1): Likewise.
	(cxx_eval_store_expression): Likewise.
	(cxx_eval_constant_expression): Likewise.

2016-04-06  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c/70436
	* cp-tree.h (FOR_EACH_CLONE): Restructure macro to avoid
	potentially generating a future -Wparentheses warning in its
	callers.

2016-04-06  Jason Merrill  <jason@redhat.com>

	* class.c (check_abi_tags): Fix function template handling.

2016-04-05  Nathan Sidwell  <nathan@acm.org>

	PR c++/70512
	* class.c (fixup_may_alias): New.
	(fixup_attribute_variants): Call it.

2016-04-05  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70452
	* constexpr.c (struct fundef_copy): New struct.
	(struct fundef_copies_table_t): New struct.
	(fundef_copies_table): New static variable.
	(maybe_initialize_fundef_copies_table): New static function.
	(get_fundef_copy): New static function.
	(save_fundef_copy): New static function.
	(cxx_eval_call_expression): Use get_fundef_copy, and
	save_fundef_copy.
	(constexpr_call_table): Add "deletable" GTY marker.

2016-04-05  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70452
	* cp-tree.h (class cache_map): Remove.
	* constexpr.c (cv_cache): Change type to
	GTY((deletable)) hash_map<tree, tree> *.
	(maybe_constant_value): Adjust following the change to cv_cache.
	(clear_cv_cache): New static function.
	(clear_cv_and_fold_caches): Use it.
	* cp-gimplify.c (fold_cache): Change type to
	GTY((deletable)) hash_map<tree, tree> *.
	(clear_fold_cache): Adjust following the change to fold_cache.
	(cp_fold): Likewise.

2016-04-02  Martin Sebor  <msebor@redhat.com>

	PR c++/67376
	PR c++/70170
	PR c++/70172
	PR c++/70228
	* constexpr.c (diag_array_subscript): New function.
	(cxx_eval_array_reference): Detect out of bounds array indices.

2016-04-01  Jason Merrill  <jason@redhat.com>

	PR c++/70449
	PR c++/70344
	* pt.c (instantiate_decl): A function isn't fully defined if
	DECL_INITIAL is error_mark_node.
	* constexpr.c (cxx_eval_call_expression): Likewise.

2016-04-01  Jakub Jelinek  <jakub@redhat.com>
	    Marek Polacek  <polacek@redhat.com>

	PR c++/70488
	* init.c (warn_placement_new_too_small): Test whether
	DECL_SIZE_UNIT or TYPE_SIZE_UNIT are integers that fit into uhwi.

2016-04-01  Nathan Sidwell  <nathan@acm.org>

	PR c++/68475
	* decl.c (check_redeclaration_exception_specification): Check
	regardless of -fno-exceptions.
	* typeck2.c (merge_exception_specifiers): Relax assert by checking
	flag_exceptions too.

2016-03-31  Nathan Sidwell  <nathan@acm.org>

	* decl.c (start_preparsed_function): Remove unnecessary bracing.
	(finish_destructor_body): Don't emit operator delete here.

2016-03-31  Nathan Sidwell  <nathan@acm.org>

	PR c++/70393
	* constexpr.c (cxx_eval_store_expression): Keep CONSTRUCTOR
	elements in field order.

2016-03-31  Marek Polacek  <polacek@redhat.com>

	PR c/70297
	* decl.c (duplicate_decls): Also set TYPE_ALIGN and TYPE_USER_ALIGN.

2016-03-31  Richard Biener  <rguenther@suse.de>

	PR c++/70430
	* typeck.c (cp_build_binary_op): Fix operand order of vector
	conditional in truth op handling.

2016-03-29  Jason Merrill  <jason@redhat.com>

	PR c++/70353
	* decl.c (make_rtl_for_nonlocal_decl): Don't defer local statics
	in constexpr functions.

2016-03-28  Jason Merrill  <jason@redhat.com>

	PR c++/70422
	PR c++/64266
	PR c++/70353
	* decl.c, pt.c, constexpr.c: Revert last patch.

2016-03-25  Jason Merrill  <jason@redhat.com>
	    Martin Liška  <mliska@suse.cz>

	PR c++/64266
	PR c++/70353
	Core issue 1962
	* decl.c (cp_fname_init): Decay the initializer to pointer.
	(cp_make_fname_decl): Set DECL_DECLARED_CONSTEXPR_P,
	DECL_VALUE_EXPR, DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P.
	Don't call cp_finish_decl.
	* pt.c (tsubst_expr) [DECL_EXPR]: Set DECL_VALUE_EXPR,
	DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P.  Don't call cp_finish_decl.
	* constexpr.c (cxx_eval_constant_expression) [VAR_DECL]:
	Handle DECL_VALUE_EXPR.

2016-03-24  Jason Merrill  <jason@redhat.com>

	PR c++/70386
	* constexpr.c (cxx_eval_bare_aggregate): Handle PMFs.

	PR c++/70323
	* constexpr.c (cxx_eval_call_expression): Don't cache result if
	*overflow_p.

2016-03-24  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/62212
	* tree.c (build_cplus_array_type): Determine type-dependentess
	with uses_template_parms instead of with dependent_type_p.

2016-03-23  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70347
	* typeck.c (process_init_constructor_union): If the initializer
	is empty, use the union's NSDMI if it has one.

2016-03-23  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70332
	* pt.c (tsubst_copy) [PARM_DECL]: Handle the use of 'this' in an
	NSDMI that's part of an aggregrate initialization.

2016-03-23  Jakub Jelinek  <jakub@redhat.com>

	PR c++/70001
	* constexpr.c (cxx_eval_vec_init_1): Reuse CONSTRUCTOR initializers
	for 1..max even for multi-dimensional arrays.  Call unshare_expr
	on it.

	PR c++/70323
	* constexpr.c (cxx_eval_constant_expression): Diagnose overflow
	on TREE_OVERFLOW constants.

	PR c++/70376
	* cp-gimplify.c (genericize_omp_for_stmt): Don't walk OMP_FOR_CLAUSES
	for OMP_TASKLOOP here.
	(cp_genericize_r): Handle OMP_TASKLOOP like OMP_TASK, except do call
	genericize_omp_for_stmt instead of cp_walk_tree on OMP_BODY.

2016-03-23  Alexandre Oliva  <aoliva@redhat.com>
	    Jason Merrill  <jason@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>

	PR c++/69315
	* cp-tree.h (defer_mark_used_calls, deferred_mark_used_calls): Remove.
	* decl.c (defer_mark_used_calls, deferred_mark_used_calls): Remove.
	(finish_function): Don't set or test them.
	* decl2.c (mark_used): Don't handle defer_mark_used_calls.

2016-03-23  Jason Merrill  <jason@redhat.com>

	PR c++/70344
	* constexpr.c (cxx_eval_call_expression): Catch invalid recursion.

2016-03-23  Marek Polacek  <polacek@redhat.com>

	PR c++/69884
	* pt.c (canonicalize_type_argument): Use OPT_Wignored_attributes.

2016-03-22  Ilya Enkovich  <enkovich.gnu@gmail.com>

	* call.c (build_conditional_expr_1): Always use original
	condition type for vector type checks and build.

2016-03-22  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70096
	* pt.c (tsubst_decl): Clear the DECL_MODE of the new decl.

2016-03-22  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70204
	* constexpr.c (non_const_var_error): Check
	DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P.

2016-03-21  Richard Henderson  <rth@redhat.com>

	PR c++/70273
        * decl.c (notice_forced_label_r): New.
        (cp_finish_decl): Use it.

2016-03-21  Jason Merrill  <jason@redhat.com>

	PR c++/70285
	* cp-gimplify.c (cp_fold) [COND_EXPR]: Handle bit-fields.

2016-03-18  Jason Merrill  <jason@redhat.com>

	PR c++/70139
	* constexpr.c (cxx_eval_call_expression): Fix trivial copy.

	PR c++/70147
	* class.c (vptr_via_virtual_p): New.
	(most_primary_binfo): Factor out of build_rtti_vtbl_entries.
	* cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs): Don't clear
	a vptr from any virtual base in a not-in-charge 'structor.

	* decl.c (build_clobber_this): Factor out of
	start_preparsed_function and begin_destructor_body.  Handle
	virtual bases better.

	* class.c (build_if_in_charge): Split out from build_base_path.
	* init.c (expand_virtual_init, expand_default_init): Use it.
	* call.c (build_special_member_call): Use it.

2016-03-18  Jakub Jelinek  <jakub@redhat.com>

	PR c++/70267
	* init.c (build_new_1): Complain and return error_mark_node
	if alloc_fn is not _Jv_AllocObject function returning pointer.

2016-03-18  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70205
	* search.c (adjust_result_of_qualified_name_lookup): Don't
	update the BASELINK_BINFO of DECL if the second call
	to lookup_base fails.

2016-03-18  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70218
	* parser.c (cp_parser_lambda_expression): Move call to
	pop_deferring_access_checks ahead of the call to
	cp_parser_end_tentative_firewall.

2016-03-17  Jakub Jelinek  <jakub@redhat.com>

	PR c++/70144
	* cp-tree.h (magic_varargs_p): Return int instead of bool.
	* call.c (magic_varargs_p): Return int instead of bool, return 2 for
	Cilk+ reductions, otherwise 1 for magic varargs and 0 for normal
	varargs.
	(build_over_call): If magic_varargs_p == 2, call reject_gcc_builtin,
	if magic_varargs_p == 1, call decay_conversion
	instead of mark_type_use.  Don't store error_mark_node arguments to
	argarray, instead return error_mark_node.

	PR c++/70272
	* decl.c (begin_destructor_body): Don't insert clobber if
	is_empty_class (current_class_type).

2016-03-17  Marek Polacek  <polacek@redhat.com>

	PR c++/70194
	* typeck.c (warn_for_null_address): New function.
	(cp_build_binary_op): Call it.

2016-03-16  Jason Merrill  <jason@redhat.com>

	PR c++/70259
	* decl.c (start_preparsed_function): Don't clobber an empty base.

2016-03-16  Jakub Jelinek  <jakub@redhat.com>

	PR c++/70147
	* cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs): Conditionalize
	BINFO_VIRTUAL_P vtable clearing on current_in_charge_parm.

	PR c++/70147
	* cp-ubsan.c (cp_ubsan_maybe_initialize_vtbl_ptrs): Temporarily
	set in_base_initializer.

2016-03-15  Marek Polacek  <polacek@redhat.com>

	PR c++/70209
	* tree.c (strip_typedefs): Call strip_typedefs again on the
	DECL_ORIGINAL_TYPE result.

2016-03-15  Jason Merrill  <jason@redhat.com>

	PR c++/70095
	* pt.c (instantiate_decl): Fix call to variable_template_p.

	PR c++/70141
	* pt.c (for_each_template_parm_r): Always walk into TYPENAME_TYPE.

2016-03-14  Casey Carter  <casey@carter.net>
	    Jason Merrill  <jason@redhat.com>

	P0184R0: Generalizing the Range-Based For Loop
	* parser.c (cp_convert_range_for): Set the type of __end separately.
	(cp_parser_perform_range_for_lookup): Allow different begin/end
	types if they are comparable.

2016-03-12  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/70106
	* semantics.c (force_paren_expr): Just build a PAREN_EXPR when
	processing_template_decl and EXPR is a SCOPE_REF.

2016-03-10  Patrick Palka  <ppalka@gcc.gnu.org>
	    Jakub Jelinek  <jakub@redhat.com>

	PR c++/70001
	* constexpr.c (cxx_eval_vec_init_1): For pre_init case, reuse
	return value from cxx_eval_constant_expression from earlier
	elements if it is valid constant initializer requiring no
	relocations.

2016-03-10  Marek Polacek  <polacek@redhat.com>

	PR c++/70153
	* cp-gimplify.c (cp_fold): Handle UNARY_PLUS_EXPR.

2016-03-09  Cesar Philippidis  <cesar@codesourcery.com>

	* parser.c (cp_parser_oacc_loop): Update cclauses and clauses
	when calling c_finish_omp_clauses.

2016-03-08  Jason Merrill  <jason@redhat.com>

	* parser.c (cp_parser_diagnose_invalid_type_name): Give helpful
	diagnostic for use of "concept".
	(cp_parser_requires_clause_opt): And "requires".
	(cp_parser_type_parameter, cp_parser_late_return_type_opt)
	(cp_parser_explicit_template_declaration): Adjust.
	* Make-lang.in (check-c++-all): Add "concepts" to std list.

	P0036R0: Unary Folds and Empty Parameter Packs
	* pt.c (expand_empty_fold): Remove special cases for *,+,&,|.

2016-03-08  Jakub Jelinek  <jakub@redhat.com>

	PR c++/70135
	* constexpr.c (cxx_eval_loop_expr): Forget saved values of SAVE_EXPRs
	even after the last iteration of the loop.

	* decl.c (duplicate_decls): Fix spelling - becuase -> because.

2016-03-07  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/66786
	* pt.c (get_template_info): Handle PARM_DECL.
	(template_class_depth): Check DECL_P instead of
	VAR_OR_FUNCTION_DECL_P.

2016-03-05  Jason Merrill  <jason@redhat.com>

	PR c++/67364
	* constexpr.c (cxx_eval_store_expression): Replace
	CONSTRUCTOR_ELTS in nested CONSTRUCTORs, too.

2016-03-05  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/66786
	* pt.c (template_class_depth): Given a lambda type, iterate
	into its LAMBDA_TYPE_EXTRA_SCOPE field instead of its
	TYPE_CONTEXT.  Given a VAR_DECL, iterate into its
	CP_DECL_CONTEXT.

2016-03-04  Jason Merrill  <jason@redhat.com>

	PR c++/69203
	* cp-tree.h (COND_EXPR_IS_VEC_DELETE): New.
	* init.c (build_vec_delete_1): Set it.
	* constexpr.c (potential_constant_expression_1) [COND_EXPR]: Check it.

2016-03-04  Jakub Jelinek  <jakub@redhat.com>

	* decl.c (start_preparsed_function): Don't emit start clobber at the
	start of constructor clones.

	PR c++/70035
	* cp-tree.h (cp_ubsan_maybe_initialize_vtbl_ptrs): New prototype.
	* decl.c (start_preparsed_function): Call
	cp_ubsan_maybe_initialize_vtbl_ptrs if needed.
	* cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs,
	cp_ubsan_maybe_initialize_vtbl_ptrs): New functions.

2016-03-04  Jason Merrill  <jason@redhat.com>

	PR c++/67364
	* constexpr.c (cxx_eval_component_reference): Further tweak.

	* constexpr.c (struct constexpr_ctx): Add save_exprs field.
	(cxx_eval_loop_expr): Discard SAVE_EXPR values before looping.
	(cxx_eval_constant_expression) [SAVE_EXPR]: Add it to the set.
	(cxx_eval_outermost_constant_expr, is_sub_constant_expr): Initialize.

	PR c++/70067
	* tree.c (strip_typedefs): Handle TYPENAME_TYPE lookup finding the
	same type.

2016-03-03  Jason Merrill  <jason@redhat.com>

	* method.c (synthesized_method_walk): operator= can also be constexpr.

	* pt.c (tsubst_copy_and_build) [LAMBDA_EXPR]: Get
	LAMBDA_EXPR_RETURN_TYPE from the instantiated closure.

	PR c++/67164
	* pt.c (copy_template_args): New.
	(tsubst_pack_expansion): Use it.

	* call.c (build_aggr_conv): Use get_nsdmi.

	PR c++/51406
	* typeck.c (build_static_cast_1): Avoid folding back to lvalue.

	PR c++/67364
	* constexpr.c (cxx_eval_component_reference): Just return an empty
	CONSTRUCTOR for an empty class.

2016-03-01  Jason Merrill  <jason@redhat.com>

	PR c++/70036
	* parser.c (cp_parser_requires_clause): Call
	check_for_bare_parameter_packs.

	PR c++/51489
	* constexpr.c (cxx_eval_binary_expression): Don't VERIFY_CONSTANT
	the operands.

	PR c++/69995
	* constexpr.c (cxx_eval_call_expression): Unshare arg.
	(cxx_eval_constant_expression) [DECL_EXPR]: Unshare init.
	[TARGET_EXPR]: Unshare init.

2016-03-01  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/68948
	PR c++/69961
	* pt.c (tsubst_baselink): Reinstate the check for an invalid
	constructor call.

2016-02-28  Jason Merrill  <jason@redhat.com>

	PR c++/69995
	* constexpr.c (cxx_eval_store_expression): Unshare init.

2016-02-26  Jason Merrill  <jason@redhat.com>

	PR c++/69958
	* pt.c (make_argument_pack): New.
	(tsubst_copy) [SIZEOF_EXPR]: Handle partial expansion.
	(tsubst_copy_and_build): Likewise.

2016-02-25  Jason Merrill  <jason@redhat.com>

	PR c++/69889
	* cp-tree.h (AGGR_INIT_FROM_THUNK_P): New.
	* tree.c (build_aggr_init_expr): Set it.
	* semantics.c (simplify_aggr_init_expr): Check it.
	* cp-gimplify.c (cp_genericize_r): Don't walk into
	a call/aggr_init from a thunk.

	PR c++/69842
	* method.c (forward_parm): Handle parameter packs.
	* lambda.c (maybe_add_lambda_conv_op): Use it for them.

	PR c++/67364
	* constexpr.c (cxx_eval_component_reference): Don't complain about
	unevaluated empty classes.

	PR c++/68049
	* tree.c (strip_typedefs): Use DECL_ORIGINAL_TYPE.

2016-02-25  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/69736
	* cp-tree.h (REF_PARENTHESIZED_P): Adjust documentation.
	(maybe_undo_parenthesized_ref): Declare.
	* semantics.c (maybe_undo_parenthesized_ref): Split out from
	check_return_expr.
	(finish_call_expr): Use it.
	* typeck.c (check_return_expr): Use it.
	* pt.c (tsubst_copy_and_build) [INDIRECT_REF]: Retain the
	REF_PARENTHESIZED_P flag.

2016-02-24  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69922
	* class.c (build_base_path): Set TREE_NO_WARNING on the null_test.
	Avoid folding it.
	* init.c (build_vec_delete_1, build_delete): Don't fold the non-NULL
	tests.
	* cp-gimplify.c (cp_fold): For TREE_NO_WARNING comparisons with NULL,
	unless they are folded into INTEGER_CST, error_mark_node or some
	comparison with NULL, avoid folding them and use either the original
	comparison or non-folded comparison of folded arguments.
	* cp-ubsan.c (cp_ubsan_instrument_vptr): Set TREE_NO_WARNING on the
	comparison, don't fold the comparison right away.

2016-02-24  Jason Merrill  <jason@redhat.com>

	PR c++/69323
	* friend.c (make_friend_class): Likewise.
	* decl.c (lookup_and_check_tag): Diagnose invalid dependent friend.

2016-02-24  Jason Merrill  <jason@redhat.com>

	PR c++/69323
	* pt.c (instantiate_class_template_1): Set
	processing_template_decl before substituting friend_type.

016-02-24  Martin Sebor  <msebor@redhat.com>

	PR c++/69912
	* tree.c (build_ctor_subob_ref): Compare types' main variants
	instead of the types as they are.

2016-02-24  Jason Merrill  <jason@redhat.com>

	* decl.c (start_preparsed_function): Condition ctor clobber on
	flag_lifetime_dse > 1.

	* cp-gimplify.c (cp_fold): Don't fold constexpr calls if -fno-inline.

2016-02-19  Jason Merrill  <jason@redhat.com>

	PR c++/69743
	* call.c (remaining_arguments): No longer static.
	* cp-tree.h: Declare it.
	* pt.c (more_specialized_fn): Use it.

2016-02-19  Jakub Jelinek  <jakub@redhat.com>
	    Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* Make-lang.in: Invoke gperf with -L C++.
	* cfns.gperf: Remove prototypes for hash and libc_name_p
	inlines.
	* cfns.h: Regenerated.
	* except.c (nothrow_libfn_p): Adjust.

2016-02-19  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69850
	* rtti.c (ifnonnull): Set TREE_NO_WARNING on the condition, use
	NE_EXPR instead of EQ_EXPR and swap last two arguments on COND_EXPR.

2016-02-19  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/68948
	* pt.c (tsubst_baselink): Don't diagnose an invalid constructor
	call here.
	* semantics.c (finish_call_expr): Don't assume a constructor
	call is dependent if only the "this" pointer is dependent.  When
	building a constructor call, always use a dummy object.

2016-02-19  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69850
	* init.c (build_vec_delete_1): Set TREE_NO_WARNING on the NE_EXPR
	condition.
	* cp-gimplify.c (cp_fold): Propagate TREE_NO_WARNING from binary
	operators if folding preserved the binop, just with different
	arguments.

	PR c++/67767
	* parser.c (cp_parser_std_attribute_spec_seq): Don't assume
	attr_spec is always single element chain, chain all the attributes
	properly together in the right order.

2016-02-18  Jason Merrill  <jason@redhat.com>

	* mangle.c (maybe_check_abi_tags): Add for_decl parm.  Call
	mangle_decl.
	(mangle_decl): Call maybe_check_abi_tags for function scope.
	(mangle_guard_variable): Call maybe_check_abi_tags here.
	(write_guarded_var_name): Not here.

2016-02-17  Jason Merrill  <jason@redhat.com>

	PR c++/65985
	* constexpr.c (build_constexpr_constructor_member_initializers):
	Handle an additional STATEMENT_LIST.

	PR c++/68585
	* constexpr.c (cxx_eval_bare_aggregate): Fix 'changed' detection.

	PR c++/68679
	* decl2.c (reset_type_linkage_2): Look through member templates.

2016-02-17  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69850
	* init.c (build_delete): Set TREE_NO_WARNING on ifexp.

2016-02-17  Jason Merrill  <jason@redhat.com>

	PR c++/69842
	* method.c (forward_parm): Split out from...
	(add_one_base_init): ...here.
	* lambda.c (maybe_add_lambda_conv_op): Use it.

2016-02-16  Jason Merrill  <jason@redhat.com>

	PR c++/10200
	PR c++/69753
	* call.c, cp-tree.h, name-lookup.c, pt.c, search.c, semantics.c,
	tree.c, typeck2.c: Revert earlier changes.
	* parser.c (cp_parser_lookup_name): Ignore namespace-scope
	non-type templates after -> or .

2016-02-16  Jakub Jelinek  <jakub@redhat.com>

	PR c/69835
	* typeck.c (cp_build_binary_op): Revert 2015-09-09 change.

2016-02-16  Jason Merrill  <jason@redhat.com>

	PR c++/69657
	* name-lookup.c (lookup_qualified_name): Add find_hidden parm.
	(set_decl_namespace): Pass it.  Complain about finding a hidden friend.
	* name-lookup.h: Adjust.

2016-02-16  James Norris  <jnorris@codesourcery.com>

	* parser.c (cp_parser_oacc_data_clause_deviceptr): Remove checking.
	* semantics.c (finish_omp_clauses): Add deviceptr checking.

2016-02-15  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69658
	* init.c (expand_default_init): Only call reshape_init
	in the direct-initialization from an initializer list case.

2016-02-15  Jason Merrill  <jason@redhat.com>

	PR c++/69753
	* semantics.c (finish_call_expr): Implicit 'this' does not make
	the call dependent.
	* search.c (any_dependent_bases_p): Split out...
	* name-lookup.c (do_class_using_decl): ...from here.
	* call.c (build_new_method_call_1): Don't complain about missing object
	if there are dependent bases.  Tweak error.
	* tree.c (non_static_member_function_p): Remove.
	* pt.c (type_dependent_expression_p): A member template of a
	dependent type is dependent.
	* cp-tree.h: Adjust.

	PR c++/68890
	* constexpr.c (verify_ctor_sanity): Remove CONSTRUCTOR_NELTS check.

2016-02-12  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/69098
	* pt.c (lookup_and_finish_template_variable): New function,
	extracted from ...
	(tsubst_copy_and_build) [TEMPLATE_ID_EXPR]: ... here.  Use it.
	(tsubst_qualified_id): Consider that EXPR might be a variable
	template.
	* typeck.c (check_template_keyword): Don't emit an error
	if DECL is a variable template.

2016-02-12  Jakub Jelinek  <jakub@redhat.com>

	* error.c: Spelling fixes - behaviour -> behavior and
	neighbour -> neighbor.
	* decl.c: Likewise.
	* typeck.c (cp_build_binary_op): Fix up behavior spelling in
	diagnostics.
	* init.c (build_delete): Likewise.

2016-02-11  Jakub Jelinek  <jakub@redhat.com>

	PR c/69768
	* typeck.c (cp_build_binary_op): cp_fully_fold integer_zerop
	arguments for -Waddress warning.  Fix up formatting.

2016-02-11  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/68726
	* pt.c (lookup_template_class_1): Check tsubst return value for
	error_mark_node.

2016-02-10  Jason Merrill  <jason@redhat.com>

	PR c++/68926
	* pt.c (resolve_nondeduced_context): Add complain parm.
	(do_auto_deduction): Pass it.
	* cvt.c (convert_to_void): Likewise.
	* decl.c (cp_finish_decl): Likewise.
	* init.c (build_new): Likewise.
	* rtti.c (get_tinfo_decl_dynamic): Likewise.
	* semantics.c (finish_decltype_type): Likewise.
	* typeck.c (decay_conversion): Likewise.
	* cp-tree.h: Adjust declaration.
	* call.c (standard_conversion): Add complain parm, pass it along.
	(implicit_conversion): Pass it.

	PR c++/69657
	* name-lookup.c (ambiguous_decl): Call remove_hidden_names.
	(lookup_name_real_1): Likewise.
	(remove_hidden_names): Handle non-functions too.

	PR c++/10200
	* parser.c (cp_parser_lookup_name): When looking for a template
	after . or ->, only consider class templates.
	(cp_parser_postfix_dot_deref_expression): Handle the current
	instantiation.  Remember a dependent object expression.
	* typeck2.c (build_x_arrow): Handle the current instantiation.

	* ptree.c (debug_tree): Implement for cp_expr.

2016-02-08  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/69139
	* parser.c (cp_parser_simple_type_specifier): Make the check
	for disambiguating between an 'auto' placeholder and an implicit
	template parameter more robust.

2016-02-08  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/69283
	PR c++/67835
	* decl2.c (mark_used): When given a TEMPLATE_DECL, return after
	setting its TREE_USED flag.

2016-02-08  Jason Merrill  <jason@redhat.com>

	PR c++/69657
	* name-lookup.c (do_nonmember_using_decl): Leave anticipated
	built-ins alone.

2016-02-08  Jakub Jelinek  <jakub@redhat.com>

	PR c++/59627
	* parser.c (cp_parser_omp_declare_reduction): Set assembler name
	of the DECL_OMP_DECLARE_REDUCTION_P decls.

2016-02-08  Marek Polacek  <polacek@redhat.com>

	PR c++/69688
	* constexpr.c (clear_cv_and_fold_caches): Renamed from clear_cv_cache.
	Call clear_fold_cache.
	* cp-tree.h: Adjust declaration.
	* decl.c (finish_enum_value_list): Call clear_cv_and_fold_caches
	rather than clear_cv_cache and clear_fold_cache.
	* typeck2.c (store_init_value): Call clear_cv_and_fold_caches.

2016-02-08  Jason Merrill  <jason@redhat.com>

	* cp-tree.h (CONV_FOLD, CONV_BACKEND_CONVERT): New.
	* cvt.c (convert): Pass CONV_BACKEND_CONVERT.
	(ocp_convert): Use *_maybe_fold.
	(cp_convert_to_pointer): Add dofold parameter.
	* cp-gimplify.c (cp_fold) [CONVERT_EXPR]: Call convert.

2016-02-05  Martin Sebor  <msebor@redhat.com>

	PR c++/69662
	* init.c (find_field_init): New function.
	(warn_placement_new_too_small): Call it.  Handle one-element arrays
	at ends of structures special.

2016-02-05  Jason Merrill  <jason@redhat.com>

	PR c++/68948
	* semantics.c (finish_expr_stmt): If expr is error_mark_node,
	make sure we've seen_error().

2016-02-05  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/68948
	* pt.c (tsubst_baselink): Diagnose an invalid constructor call
	if lookup_fnfields returns NULL_TREE and the name being looked
	up has the form A::A.

2016-02-04  Patrick Palka  <ppalka@gcc.gnu.org>

	* constexpr.c (cxx_eval_binary_expression): Fold equality
	comparisons involving PTRMEM_CSTs.

2016-02-04  Jakub Jelinek  <jakub@redhat.com>

	* class.c (find_flexarrays): Don't declare dom variable.
	(diagnose_flexarray): Likewise.

2016-02-02  Martain Sebor  <msebor@redhat.com>

	PR c++/69251
	PR c++/69253
	PR c++/69290
	PR c++/69277
	PR c++/69349
	* class.c (walk_subobject_offsets): Avoid testing the upper bound
	of a flexible array member for equality to null.
	(find_flexarrays): Remove spurious whitespace introduced in r231665.
	(diagnose_flexarrays): Avoid checking the upper bound of arrays.
	(check_flexarrays): Same.
	* decl.c (compute_array_index_type): Avoid special case for flexible
	array members.
	(grokdeclarator): Avoid calling compute_array_index_type for flexible
	array members.
	* error.c (dump_type_suffix): Revert changes introduced in r231665
	and rendered unnecessary by the changes above.
	* pt.c (tsubst):  Same.
	* tree.c (build_ctor_subob_ref): Handle flexible array members.
	* typeck2.c (digest_init_r): Revert changes introduced in r231665.
	(process_init_constructor_array): Same.
	(process_init_constructor_record): Same.

2016-02-03  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/69056
	* pt.c (try_one_overload): Handle comparing argument packs so
	that there is no conflict if we deduced more arguments of an
	argument pack than were explicitly specified.

2016-01-31  Jakub Jelinek  <jakub@redhat.com>
	    Jason Merrill  <jason@redhat.com>

	PR c++/68763
	* tree.c (strip_typedefs) [FUNCTION_TYPE]: Avoid building a new
	function type if nothing is changing.

2016-01-31  Jason Merrill  <jason@redhat.com>

	PR c++/69009
	* pt.c (partial_specialization_p, impartial_args): New.
	(instantiate_decl): Call impartial_args.

	* mangle.c (maybe_check_abi_tags): New.
	(write_guarded_var_name): Call it.
	(mangle_ref_init_variable): Call check_abi_tags.

	* pt.c (lookup_template_class_1): Don't share TYPE_ATTRIBUTES
	between template and instantiation.

2016-01-29  Jakub Jelinek  <jakub@redhat.com>

	PR debug/66869
	* decl.c (wrapup_globals_for_namespace): Warn about unused static
	function declarations.

2016-01-29  Marek Polacek  <polacek@redhat.com>

	PR c++/69509
	PR c++/69516
	* constexpr.c (cxx_eval_array_reference): Give the "array subscript
	out of bound" error earlier.
	* init.c (build_vec_init): Change NE_EXPR into GT_EXPR.  Update the
	commentary.

2016-01-29  Patrick Palka  <ppalka@gcc.gnu.org>

	* name-lookup.c (begin_scope): After reusing a cp_binding_level
	structure, update free_binding_level before the structure's
	level_chain field gets cleared, not after.

2016-01-28  Jason Merrill  <jason@redhat.com>

	PR c++/67407
	* search.c (dfs_walk_once, dfs_walk_once_r)
	(dfs_walk_once_accessible_r, dfs_walk_once_accessible): Use
	hash_set instead of BINFO_MARKED.
	(dfs_unmark_r): Remove.

2016-01-28  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/24208
	* parser.c (LEXER_DEBUGGING_ENABLED_P): New macro.
	(cp_lexer_debugging_p): Use it.
	(cp_lexer_start_debugging): Likewise.
	(cp_lexer_stop_debugging): Likewise.

2016-01-27  Marek Polacek  <polacek@redhat.com>

	PR c/68062
	* typeck.c (cp_build_binary_op): Promote operand to unsigned, if
	needed.  Add -Wsign-compare warning.

2016-01-27  Ryan Burn  <contact@rnburn.com>

	PR cilkplus/69267
	* cp-gimplify.c (cilk_cp_gimplify_call_params_in_spawned_fn): Removed
	superfluous post_p argument in call to
	cilk_gimplify_call_params_in_spawned_fn.

2016-01-27  Marek Polacek  <polacek@redhat.com>

	PR c++/69379
	* constexpr.c (cxx_eval_constant_expression): Handle PTRMEM_CSTs
	wrapped in NOP_EXPRs.

2016-01-27  Martin Sebor  <msebor@redhat.com>

	PR c++/69317
	* mangle.c (mangle_decl): Reference the correct (saved) version
	of the ABI in -Wabi diagnostics.

2016-01-27  Marek Polacek  <polacek@redhat.com>

	PR c++/69496
	* constexpr.c (cxx_eval_array_reference): Evaluate the number of
	elements of the array.

2016-01-26  Jason Merrill  <jason@redhat.com>

	PR c++/68949
	* constexpr.c (register_constexpr_fundef): Keep the un-massaged body.
	(cxx_eval_call_expression): Don't look through clones.
	* optimize.c (maybe_clone_body): Clear DECL_SAVED_TREE of the alias.
	* semantics.c (expand_or_defer_fn_1): Keep DECL_SAVED_TREE of
	maybe-in-charge *tor.

2016-01-26  Jason Merrill  <jason@redhat.com>

	PR c++/68782
	* constexpr.c (cxx_eval_bare_aggregate): Update TREE_CONSTANT
	and TREE_SIDE_EFFECTS.
	(cxx_eval_constant_expression) [CONSTRUCTOR]: Call
	verify_constructor_flags.

2016-01-26  Jakub Jelinek  <jakub@redhat.com>

	PR c++/68357
	* cp-gimplify.c (cp_fold): If some operand folds to error_mark_node,
	return error_mark_node instead of building trees with error_mark_node
	operands.

2016-01-26  David Malcolm  <dmalcolm@redhat.com>

	PR other/69006
	* error.c (print_instantiation_partial_context_line): Add missing
	newlines from output for the t == NULL case.
	(print_instantiation_partial_context): Remove call to pp_newline.

2016-01-24  Patrick Palka  <ppalka@gcc.gnu.org>

	Revert:
	2016-01-18  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/11858
	PR c++/24663
	PR c++/24664
	* decl.c (grokdeclarator): Don't decay array parameter type to
	a pointer type if it's dependent.
	(grokparms): Invoke strip_top_quals instead of directly invoking
	cp_build_qualified_type.
	* pt.c (decay_dependent_array_parm_type): New static function.
	(type_unification_real): Call decay_dependent_array_parm_type
	to decay a dependent array parameter type to its corresponding
	pointer type before unification.
	(more_specialized_fn): Likewise.
	(get_bindings): Likewise.
	* tree.c (cp_build_qualified_type): Trivial typofix in
	documentation.

2016-01-23  Martin Sebor  <msebor@redhat.com>

	PR c++/58109
	PR c++/69022
	* decl2.c (is_late_template_attribute): Handle dependent argument
	to attribute align and attribute vector_size.

2016-01-21  Jason Merrill  <jason@redhat.com>

	PR c++/69392
	* lambda.c (lambda_capture_field_type): Handle 'this' specially
	for init-capture, too.

	PR c++/65687
	* decl.c (type_is_deprecated): Don't look into a typedef.

	PR c++/40751
	PR c++/64987
	* decl.c (copy_type_enum): Respect TYPE_USER_ALIGN.

	PR c++/43407
	* decl.c (start_enum): Add attributes parameter.
	* parser.c (cp_parser_enum_specifier): Pass it.
	* pt.c (lookup_template_class_1): Pass it.
	* cp-tree.h: Adjust.

2016-01-19  Jason Merrill  <jason@redhat.com>

	PR c++/59759
	* pt.c (convert_template_argument): Handle VAR_DECL properly.

2016-01-19  Marek Polacek  <polacek@redhat.com>

	PR c++/68586
	* constexpr.c (clear_cv_cache): New.
	* cp-gimplify.c (clear_fold_cache): New.
	* cp-tree.h (clear_cv_cache, clear_fold_cache): Declare.
	* decl.c (finish_enum_value_list): Call them.

	PR c++/68965
	* pt.c (tsubst_copy): Mark elements in expanded vector as used.

2016-01-18  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/11858
	PR c++/24663
	PR c++/24664
	* decl.c (grokdeclarator): Don't decay array parameter type to
	a pointer type if it's dependent.
	(grokparms): Invoke strip_top_quals instead of directly invoking
	cp_build_qualified_type.
	* pt.c (decay_dependent_array_parm_type): New static function.
	(type_unification_real): Call decay_dependent_array_parm_type
	to decay a dependent array parameter type to its corresponding
	pointer type before unification.
	(more_specialized_fn): Likewise.
	(get_bindings): Likewise.
	* tree.c (cp_build_qualified_type): Trivial typofix in
	documentation.

2016-01-18  Jason Merrill  <jason@redhat.com>

	* cp-gimplify.c (cp_fold) [CONSTRUCTOR]: Don't clobber the input.

	* cp-gimplify.c (cp_fold): Remove unnecessary special cases.

	PR c++/68767
	* cp-gimplify.c (cp_fold) [COND_EXPR]: Simplify.  Do fold COND_EXPR.
	(contains_label_1, contains_label_p): Remove.

2016-01-16  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/69091
	* pt.c (type_dependent_expression_p): For a function template
	specialization, a type is dependent iff any of its template
	arguments are.

2016-01-16  Patrick Palka  <ppalka@gcc.gnu.org>

	* cp-array-notation.c (cp_expand_cond_array_notations): Return
	error_mark_node only if find_rank failed, not if it was
	successful.

2016-01-16  Patrick Palka  <ppalka@gcc.gnu.org>

	PR c++/68936
	* tree.c (build_min_non_dep_call_vec): Don't retain the
	KOENIG_LOOKUP_P flag of the non-dependent expression that's
	been built.
	(build_min_non_dep_op_overload): Instead, do it here.

2016-01-15  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/68271
	* parser.h (cp_token): Remove pragma_kind field.  Add comment
	with number of unused bits.
	* parser.c (eof_token): Remove pragma_kind field initializer.
	(cp_lexer_get_preprocessor_token): Don't set pragma_kind
	field, don't clear CPP_PRAGMA u.value.
	(cp_parser_pragma_kind): New function.
	(cp_parser_omp_sections_scope, cp_parser_oacc_kernels_parallel,
	cp_parser_omp_construct, cp_parser_initial_pragma,
	cp_parser_pragma): Use cp_parser_pragma_kind instead of accessing
	pragma_kind field.

2016-01-15  Jason Merrill  <jason@redhat.com>

	PR c++/68847
	* call.c (build_cxx_call): Use fold_non_dependent_expr.

	* typeck2.c (cxx_incomplete_type_diagnostic): Use the location of
	value.

	PR c++/69257
	* typeck.c (decay_conversion): Don't call mark_rvalue_use for
	array/function-to-pointer conversion.  Call
	complete_type_or_maybe_complain for lvalue-to-rvalue conversion.
	* call.c (convert_like_real): Print call context if
	decay_conversion errors.

2016-01-14  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/68773
	* parser.c (cp_parser_oacc_declare, cp_parser_omp_declare_target): Don't
	set force_output.

2016-01-14  Jason Merrill  <jason@redhat.com>

	PR c++/69261
	* constexpr.c (find_array_ctor_elt): Handle splitting RANGE_EXPR.

2016-01-12  Marek Polacek  <polacek@redhat.com>

	PR c++/68979
	* constexpr.c (cxx_eval_check_shift_p): Use permerror rather than
	error_at and adjust the return value.

2016-01-12  Jakub Jelinek  <jakub@redhat.com>

	PR objc++/68511
	PR c++/69213
	* cp-gimplify.c (cp_gimplify_expr) <case INIT_EXPR>: Don't return
	GS_ERROR whenever seen_error (), only if *expr_p contains
	cilk spawn stmt, but cilk_detect_spawn_and_unwrap failed.

	PR c++/66808
	PR c++/69000
	* pt.c (tsubst_decl): If not local_p, clear DECL_TEMPLATE_INFO.

2016-01-11  Jason Merrill  <jason@redhat.com>

	PR c++/69131
	* method.c (walk_field_subobs): Add dtor_from_ctor parm.
	(process_subob_fn): Likewise.  Don't consider triviality if true.
	(synthesize_method_walk): Pass it.

2016-01-11  David Malcolm  <dmalcolm@redhat.com>

	PR c++/68795
	* parser.c (cp_parser_postfix_expression): Initialize
	close_paren_loc to UNKNOWN_LOCATION; only use it if
	it has been written to by
	cp_parser_parenthesized_expression_list.
	(cp_parser_parenthesized_expression_list): Document the behavior
	with respect to the CLOSE_PAREN_LOC param.

2016-01-11  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69211
	* cp-gimplify.c (cp_fold): If COMPOUND_EXPR or MODIFY_EXPR
	folded operands have side-effects, but folding changed any of them,
	build a new tree with the folded operands instead of returning the
	unfolded tree.

2016-01-09  Marek Polacek  <polacek@redhat.com>

	PR c++/69113
	* decl2.c (comdat_linkage): Only set DECL_COMDAT if TREE_PUBLIC is set.

2016-01-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/69164
	* class.c (layout_class_type): Use copy_node to copy FIELD_DECLs.

2016-01-08  Jason Merrill  <jason@redhat.com>

	PR c++/69158
	* constexpr.c (cxx_fold_indirect_ref): Handle array type differing
	in completion.

2016-01-08  Marek Polacek  <polacek@redhat.com>

	PR c++/68449
	* constexpr.c (cxx_eval_constant_expression): Handle NULL initializer.

2016-01-08  Jason Merrill  <jason@redhat.com>

	* constexpr.c (cxx_eval_call_expression): Remove convert_to_void
	workaround.

	PR c++/68983
	PR c++/67557
	* cvt.c (convert_to_void): Don't strip a TARGET_EXPR of
	TREE_ADDRESSABLE type.

	PR c++/68983
	PR c++/67557
	* call.c (unsafe_copy_elision_p): Look through COMPOUND_EXPR.

2016-01-05  Nathan Sidwell  <nathan@acm.org>

	PR c++/58583
	* pt.c (build_non_dependent_expr): Don't try a checking fold when
	parsing an nsdmi.

2016-01-04  Jakub Jelinek  <jakub@redhat.com>

	Update copyright years.

Copyright (C) 2016 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.
