/cp

[pf3gnuchains/gcc-fork.git] / gcc / cp / ChangeLog

2007-09-18  Paolo Carlini  <pcarlini@suse.de>

        PR c++/33464
        * cxx-pretty-print.c (pp_cxx_trait_expression): Add.
        (pp_cxx_primary_expression): Use it.
        * cxx-pretty-print.h (pp_cxx_trait_expression): Declare.
        * error.c (dump_expr): Use it.

2007-09-16  Paolo Carlini  <pcarlini@suse.de>

        PR c++/33124
        * init.c (build_new): Remove warning for zero-element
        allocations.

2007-09-16  Nathan Sidwell  <nathan@codesourcery.com>

        cp/
        PR c++/32756
        * call.c (maybe_handle_implicit_object): Set this_p, clear
        rvaluedness_matches_p.
        (compare_ics): Do not compare rvaluedness matching when one of the
        operands is an implicit object.

        testsuite/
        PR c++/32756
        * g++.dg/overload/operator3.C: New.

2007-09-14  Jason Merrill  <jason@redhat.com>

        PR c++/17743, c++/19163
        * decl2.c (is_late_template_attribute): New fn.
        (splice_template_attributes, save_template_attributes): New fns.
        (cplus_decl_attributes): Call save_template_attributes.
        * pt.c (apply_late_template_attributes): New fn.
        (instantiate_class_template, tsubst_decl): Use it.
        * cp-tree.h: Declare is_late_template_attribute.

2007-09-13  Tom Tromey  <tromey@redhat.com>

        * parser.c (cp_lexer_new_main): Don't use
        c_lex_return_raw_strings.
        (cp_lexer_get_preprocessor_token): Update.  Add special case when
        lexer is NULL.

2007-09-11  Jan Hubicka <jh@suse.cz>

        * method.c (use_thunk): Use tree_rest_of_compilation
        * cp-objecp-common.h (LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION): Kill.
        (LANG_HOOKS_CALLGRAPH_EMIT_ASSOCIATED_THUNKS): Define.
        * cp-tree.h (expand_body): Kill.
        (emit_associated_thunks): Declare.
        * semantics.c (emit_associated_thunks): Export.
        (expand_body): Kill.

2007-09-09  David Daney  <ddaney@avtrex.com>

        PR c++/33324
        * init.c (build_new_1):  Use POINTER_PLUS_EXPR instead of MINUS_EXPR
        to calculate cookie_ptr.

2007-09-08  Jason Merrill  <jason@redhat.com>

        PR c++/33342
        * pt.c (most_specialized_class): Set processing_template_decl
        while tsubsting partial spec args.

2007-09-06  Jason Merrill  <jason@redhat.com>

        * decl2.c (get_guard): Copy visibility from the guarded variable.

2007-09-06  Jan Hubicka  <jh@suse.cz>

        * semantics.c (expand_body): Do not mark arguments of clones used.

2007-09-06  Paolo Carlini  <pcarlini@suse.de>

        PR c++/32674
        * decl.c (cp_finish_decl): When processing_template_decl,
        deal correctly with init as TREE_LIST.

2007-09-06  Tom Tromey  <tromey@redhat.com>

        * decl.c (finish_function): Put return's location on line zero of
        file.

2007-09-05  Jason Merrill  <jason@redhat.com>

        PR c++/15745
        * except.c (prepare_eh_type): Use type_decays_to.

        PR c++/15097
        * init.c (build_delete): Use build_headof to get the address of the
        complete object if we aren't using the deleting destructor.
        * rtti.c (build_headof): No longer static.
        * cp-tree.h: Declare it.

2007-09-06  Jakub Jelinek  <jakub@redhat.com>

        * decl.c (duplicate_decls): Set TREE_NOTHROW on __builtin_XX
        decl if a prototype for XX is provided with throw().

        PR c++/33289
        * decl.c (builtin_function_1): Set DECL_ANTICIPATED also
        on __*_chk non-__builtin_* decls.

2007-09-05  Paolo Carlini  <pcarlini@suse.de>

        PR c++/30302
        * semantics.c (finish_id_expression): Use context_for_name_lookup
        insted of DECL_CONTEXT, to see through anonymous structs and unions.
        * class.c (finish_struct_anon): Deal correctly with anonymous
        structs (vs unions, as GNU extension) in error messages.

2007-09-05  Jan Hubicka  <jh@suse.cz>

        * cp/sematics.c (expand_body): Remove unnecesary import_export_decl
        call, DECL_EXTERNAL checks and current_function_decl saving.

2007-09-05  Paolo Carlini  <pcarlini@suse.de>

        PR c++/29731 (again)
        * parser.c (cp_parser_primary_expression): Return error_mark_node
        when a statement-expression is found in a template-argument list.

2007-09-04  Jason Merrill  <jason@redhat.com>

        * except.c (initialize_handler_parm): Use
        fold_build_cleanup_point_expr.

        PR c++/31419
        * call.c (reference_binding): Don't look for user-defined conversions
        to the same type.

        PR c++/31411
        * except.c (initialize_handler_parm): Put a CLEANUP_POINT_EXPR inside
        the MUST_NOT_THROW_EXPR.

2007-09-04  Richard Sandiford  <richard@codesourcery.com>

        * decl.c (cp_finish_decl): Call determine_visibility before
        make_rtl_for_nonlocal_decl.

2007-09-04  Jason Merrill  <jason@redhat.com>

        PR c++/14032
        * pt.c (most_specialized_class): Substitute outer template
        arguments into the arguments of a member template partial
        specialization.
        (strip_innermost_template_args): New fn.

2007-09-03  Daniel Jacobowitz  <dan@codesourcery.com>

        * Make-lang.in (g++spec.o): Remove SHLIB_MULTILIB.

2007-09-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * call.c (name_as_c_string): Supply a TYPE for CONST_CAST.
        * decl.c (cp_make_fname_decl): Likewise,
        * parser.c (cp_parser_string_literal): Likewise,
        * tree.c (pod_type_p, zero_init_p): Use CONST_CAST_TREE.
        * typeck.c (cp_type_quals, cp_type_readonly, cp_has_mutable_p):
        Likewise,

2007-09-02  Paolo Carlini  <pcarlini@suse.de>

        PR c++/33208
        * typeck.c (build_unary_op): Fix error message for
        Boolean expression as operand to operator--.

2007-09-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * tree.c (pod_type_p, zero_init_p): Use strip_array_types.
        * typeck.c (cp_type_quals, cp_type_readonly, cp_has_mutable_p):
        Likewise.

2007-08-31 Douglas Gregor <doug.gregor@gmail.com>

        PR c++/32597
        * init.c (build_default_init): Make extern.
        * cp-tree.h (build_default_init): Declare here.
        * pt.c (tsubst_expr): When the instantiation of the initializer of
        a variable results in an empty list, default-initialize the
        variable.
        (tsubst_copy_and_build): When the instantiation of the initializer
        in a new expression results in an empty initializer list,
        default-initialize it.

2007-08-31  Douglas Gregor  <doug.gregor@gmail.com>

        * mangle.c (write_type): Change mangling of rvalue reference from
        `RR' to `O'. 

2007-08-31  Jakub Jelinek  <jakub@redhat.com>

        * decl.c (duplicate_decls): Remove duplicated line.

2007-08-31  Paolo Carlini  <pcarlini@suse.de>

        PR c++/33210
        * cxx-pretty-print.c (pp_cxx_unqualified_id): Deal with
        BOUND_TEMPLATE_TEMPLATE_PARM.

2007-08-31  Paolo Carlini  <pcarlini@suse.de>

        PR c++/32113
        * search.c (lookup_member): Check the name argument for
        error_mark_node.

2007-08-31  Paolo Carlini  <pcarlini@suse.de>

        PR c++/33212
        * parser.c (cp_parser_trait_expr): Check rerurn value of
        cp_parser_type_id.

2007-08-30  Ollie Wild  <aaw@google.com>

        * cvt.c (cp_convert_to_pointer): Remove force parameter. Call
        convert_ptrmem for pointer to member conversions.
        (convert_to_pointer_force): Update cp_convert_to_pointer call.
        (ocp_convert): Update cp_convert_to_pointer call.
        * typeck.c (convert_ptrmem): Add conditional for null pointers to
        members.
        (build_static_cast_1): Check can_convert for conversions in either
        direction.
        (get_delta_difference_1): New function.
        (get_delta_difference): Refactor to call get_delta_difference_1.

2007-08-30  Jakub Jelinek  <jakub@redhat.com>

        * decl.c (start_preparsed_function): Set
        DECL_DISREGARD_INLINE_LIMITS for GNU_INLINE_P functions.

2007-08-28  Paolo Carlini  <pcarlini@suse.de>

        PR c++/33209
        * error.c (dump_expr): Deal with TEMPLATE_TYPE_PARM and
        BOUND_TEMPLATE_TEMPLATE_PARM.

2007-08-28  Jakub Jelinek  <jakub@redhat.com>

        PR c++/32596
        PR c++/32400
        * pt.c (check_explicit_specialization): Set DECL_INTERFACE_KNOWN
        and DECL_NOT_REALLY_EXTERN if tmpl_func is not public.

2007-08-27  Jason Merrill  <jason@redhat.com>

        PR c++/29000
        * pt.c (build_non_dependent_expr, type_dependent_expression_p): 
        Look inside STMT_EXPR.
        * semantics.c (stmt_expr_value_expr): New fn.
        * cp-tree.h: Declare it.

        PR c++/28558
        * decl.c (groktypename): Ignore attributes applied to class type.

2007-08-28  Richard Guenther  <rguenther@suse.de>

        * decl.c (duplicate_decls): Merge DECL_DISREGARD_INLINE_LIMITS.

2007-08-28  Gabriel Dos Reis  <gdr@integrable-solutions.net>
        
        * error.c (dump_expr): Handle COMPLEX_CST.
        * cxx-pretty-print.c (pp_cxx_primary_expression): Likewise.
        (pp_cxx_expression): Likewise.

2007-08-27  Alexandre Oliva  <aoliva@redhat.com>

        * decl.c (GNU_INLINE_P): New.
        (duplicate_decls): Handle gnu_inline.  Merge attributes and
        some flags in overriding definitions.
        (redeclaration_error_message): Handle gnu_inline.
        (start_preparsed_function): Likewise.

2007-08-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * call.c (sufficient_parms_p): Constify.
        * class.c (same_signature_p): Likewise.
        * cp-gimplify.c (is_invisiref_parm,
        cxx_omp_privatize_by_reference): Likewise.
        * cp-objcp-common.c (has_c_linkage): Likewise.
        * cp-tree.h (NON_THUNK_FUNCTION_CHECK, THUNK_FUNCTION_CHECK,
        sufficient_parms_p, same_signature_p, copy_fn_p, move_fn_p,
        grok_ctor_properties, nothrow_libfn_p, skip_artificial_parms_for,
        num_artificial_parms_for, comp_template_parms,
        template_parameter_pack_p, any_dependent_template_arguments_p,
        any_type_dependent_arguments_p, any_value_dependent_elements_p,
        repo_export_class_p, cxx_omp_privatize_by_reference, pod_type_p,
        zero_init_p, member_p, cp_lvalue_kind,
        builtin_valid_in_constant_expr_p, decl_anon_ns_mem_p,
        varargs_function_p, is_dummy_object, special_function_kind,
        string_conv_p, type_unknown_p, comp_except_specs, compparms,
        comp_cv_qualification, is_bitfield_expr_with_lowered_type,
        unlowered_expr_type, ptr_reasonably_similar, cp_type_readonly,
        cp_has_mutable_p, at_least_as_qualified_p,
        invalid_nonstatic_memfn_p, lvalue_or_else, lvalue_p): Likewise.
        * decl.c (copy_fn_p, move_fn_p, grok_ctor_properties): Likewise.
        * except.c (nothrow_libfn_p): Likewise.
        * method.c (skip_artificial_parms_for, num_artificial_parms_for):
        Likewise.
        * pt.c (comp_template_parms, template_parameter_pack_p,
        any_type_dependent_arguments_p, any_value_dependent_elements_p,
        any_dependent_template_arguments_p): Likewise.
        * repo.c (repo_export_class_p): Likewise.
        * semantics.c (anon_aggr_type_p): Likewise.
        * tree.c (lvalue_p_1, real_lvalue_p, lvalue_p,
        builtin_valid_in_constant_expr_p, decl_anon_ns_mem_p,
        varargs_function_p, member_p, is_dummy_object, pod_type_p,
        zero_init_p, special_function_p): Likewise.
        * typeck.c (comp_array_types, type_unknown_p, comp_except_specs,
        comp_array_types, at_least_as_qualified_p, comp_cv_qualification,
        compparms, invalid_nonstatic_memfn_p,
        is_bitfield_expr_with_lowered_type, unlowered_expr_type,
        string_conv_p, ptr_reasonably_similar, cp_type_readonly,
        cp_has_mutable_p, lvalue_or_else): Likewise.

2007-08-25  Paolo Bonzini  <bonzini@gnu.org>

        * decl.c (cp_tree_node_structure): Kill TINST_LEVEL case.
        * cp-objcp-common.c (cp_tree_size): Ditto.
        * tree.c (cp_walk_subtrees): Ditto
        * cp-tree.def (TINST_LEVEL): Go away.
        * cp-tree.h (struct tinst_level_s): Rename to struct tinst_level,
        move together with other non-tree structs.
        (enum cp_tree_node_structure_enum): Nuke TS_CP_TINST_LEVEL.
        (union lang_tree_node): Eliminate tinst_level field.
        (TINST_DECL, TINST_LOCATION, TINST_IN_SYSTEM_HEADER_P): Annihilate.
        (current_instantiation, outermost_tinst_level): Return
        a "struct tinst_level *".

        * error.c (print_instantiation_partial_context): Change second
        parameter to a "struct tinst_level *".  Replace accessor macros
        with field access.
        (print_instantiation_full_context): Likewise.
        * lex.c (in_main_input_context): Likewise.

        * pt.c (struct pending_templates): New.
        (pending_templates, last_pending_template): Use it as a type.
        (current_tinst_level): Change typo to "struct tinst_level *"
        (reopen_tinst_level): Accept "struct tinst_level *", return decl.
        (add_pending_template): Construct a "struct pending_template".
        Replace TINST_LEVEL accessor macros with field access.
        (push_tinst_level): Likewise, using GGC_NEW instead of make_node.
        (pop_tinst_level): Likewise.
        (instantiate_pending_templates): Likewise.  Factor common code used
        when an instantiation has been done.
        (outermost_tinst_level): Replace tree_last with loop.
        (current_instantiation): Return a "struct tinst_level *".

2007-08-24  Ollie Wild  <aaw@google.com>

        * name-lookup.c (add_decl_to_level): Remove addition to vtables chain.
        * name-lookup.h (cp_binding_level): Remove vtables member.

2007-08-24  Richard Guenther  <rguenther@suse.de>

        * tree.c (cp_cannot_inline_tree_fn): Remove.
        * cp-tree.h (cp_cannot_inline_tree_fn): Likewise.
        * cp-objcp-common.h (LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN):
        Remove define.

2007-08-24  Jakub Jelinek  <jakub@redhat.com>

        PR c++/32567
        * typeck.c (build_unary_op) <case PREINCREMENT_EXPR>: Return
        error_mark_node right away if build_expr_type_conversion
        returned it.

        PR c++/32898
        * name-lookup.c (set_decl_namespace): lookup_qualified_name failure
        is error_mark_node rather than NULL_TREE.
        * pt.c (check_explicit_specialization): Likewise.

        PR c++/31941
        * error.c (resolve_virtual_fun_from_obj_type_ref): Handle
        TARGET_VTABLE_USES_DESCRIPTORS targets properly.

2007-08-22  Jason Merrill  <jason@redhat.com>

        PR c++/29365
        * pt.c (outermost_tinst_level): New function.
        * lex.c (in_main_input_context): New function.
        * cp-tree.h: Declare it.
        * decl2.c (constrain_class_visibility): Use it to avoid warning
        about uses of the anonymous namespace in the main input file.

2007-08-21  Jakub Jelinek  <jakub@redhat.com>

        * init.c (build_new_1): Use get_target_expr instead of save_expr.

2007-08-20  Pawel Sikora  <pluto@pld-linux.org>

        PR c++/7302
        * class.c (finish_struct_1): Warn when a class has virtual
        functions and accessible non-virtual destructor.

2007-08-20  Richard Guenther  <rguenther@suse.de>

        PR c++/22369
        PR c++/22451
        * call.c (build_new_method_call): Convert initializer to
        the basetype.
        * init.c (build_aggr_init): Do not fiddle with types.
        (build_vec_delete_1): Use correct type for POINTER_PLUS_EXPR.
        * except.c (build_throw): Do not drop qualifiers for the
        pointer type.
        * typeck.c (get_member_function_from_ptrfunc): Do not
        fiddle with types, instead convert.
        (build_ptrmemfunc1): Convert to the target type for
        initialization.
        (gfc_trans_allocate): Convert result to target type.
        * cp-objcp-common.c (cxx_get_alias_set): Pointers to
        pointer-to-member structures shall have alias set zero as well.

2007-08-20  Richard Guenther  <rguenther@suse.de>

        * cp-objcp-common.h (LANG_HOOKS_TREE_INLINING_AUTO_VAR_IN_FN_P):
        Remove.
        * cp-tree.h (cp_auto_var_in_fn_p): Remove.
        (nonstatic_local_decl_p): Likewise.
        * tree.c (cp_auto_var_in_fn_p): Remove.
        * decl.c (nonstatic_local_decl_p): Remove.

2007-08-20  Richard Guenther  <rguenther@suse.de>

        * cp-objcp-common.h (LANG_HOOKS_TREE_INLINING_WALK_SUBTREES):
        Remove define.
        * tree.h (cp_walk_tree): New define to walk_tree_1 with
        cp_walk_subtrees lh parameter.
        (cp_walk_tree_without_duplicates): New define to
        walk_tree_without_duplicates_1 with cp_walk_subtrees lh parameter.
        * tree.c (count_trees): Call
        cp_walk_tree_without_duplicates.
        (verify_stmt_tree): Call cp_walk_tree.
        (break_out_target_exprs): Likewise.
        (WALK_SUBTREE): Likewise.
        * cp-gimplify.c (cp_genericize): Likewise.
        * cp-pt.c (find_parameter_packs_r): Likewise.
        (uses_parameter_packs): Likewise.
        (make_pack_expansion): Likewise.
        (check_for_bare_parameter_packs): Likewise.
        (for_each_template_parm): Likewise.
        * decl.c (check_default_argument): Call
        cp_walk_tree_without_duplicates.
        * except.c (build_throw): Likewise.
        * decl2.c (type_visibility): Likewise.
        * semantics.c (expand_or_defer_fn): Likewise.
        (finalize_nrv): Call cp_walk_tree.

2007-08-20  Jakub Jelinek  <jakub@redhat.com>

        PR c++/33025
        * init.c (build_new_1): Rename placement_var variable to placement_expr.
        Initialize it with save_expr rather than get_temp_regvar.

2007-08-17  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR c++/28989
        * tree.c (lvalue_p_1 <case SAVE_EXPR>): SAVE_EXPRs are never
        lvalues.

2007-08-17  Ollie Wild  <aaw@google.com>

        PR c++/31749
        * name-lookup.c (do_nonmember_using_decl): Shift implicit type
        declarations into appropriate slots for comparison.  Fix type
        comparison.

2007-08-17  Paolo Carlini  <pcarlini@suse.de>

        PR c++/32112
        * error.c (dump_decl): Deal with UNBOUND_CLASS_TEMPLATE.
        * cxx-pretty-print.c (pp_cxx_unqualified_id): Likewise.

2007-08-17  Paolo Carlini  <pcarlini@suse.de>

        PR c++/32870
        * parser.c (cp_parser_class_head): Improve error message.

2007-08-16  Seongbae Park  <seongbae.park@gmail.com>

        * pt.c (instantiate_decl): Set input_location
        for the function end.

2007-08-16  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cp-objcp-common.c (cxx_warn_unused_global_decl, cp_expr_size):
        Constify.
        * cp-tree.h (local_variable_p, nonstatic_local_decl_p,
        class_tmpl_impl_spec_p, cp_auto_var_in_fn_p, cp_type_quals,
        cxx_incomplete_type_diagnostic, cxx_incomplete_type_error,
        cxx_warn_unused_global_decl, cp_expr_size): Likewise.
        * decl.c (local_variable_p, nonstatic_local_decl_p): Likewise.
        * tree.c (class_tmpl_impl_spec_p, cp_auto_var_in_fn_p): Likewise.
        * typeck.c (cp_type_quals): Likewise.
        * typeck2.c (cxx_incomplete_type_diagnostic,
        cxx_incomplete_type_error): Likewise.

2007-08-16  Paolo Carlini  <pcarlini@suse.de>

        PR c++/31132
        * pt.c (tsubst_friend_function): When check_classfn
        returns error_mark_node likewise return it.

2007-08-15  Jakub Jelinek  <jakub@redhat.com>

        PR c++/32992
        * typeck.c (check_return_expr): Don't NRV optimize vars in
        anonymous unions.
        * decl.c (finish_function): Comment fix.

2007-08-15  Paolo Carlini  <pcarlini@suse.de>

        PR c++/33035
        * pt.c (push_template_decl_real): Depending on TYPE_P
        use either TYPE_CONTEXT or DECL_CONTEXT.

2007-08-14  Mark Mitchell  <mark@codesourcery.com>

        * semantics.c (finish_omp_clauses): Strip a NOP_EXPR if
        constructors and destructors return this.

2007-08-14  Paolo Carlini  <pcarlini@suse.de>

        PR c++/27211
        * decl2.c (check_classfn): Return error_mark_node in case of error;
        in that case, do not call add_method.
        * decl.c (start_decl): Deal with check_classfn returning
        error_mark_node.
        (grokfndecl): Likewise.
        * pt.c (tsubst_friend_function): Likewise.

2007-08-14  Andrew Pinski  <pinskia@gmail.com>

        PR c++/30428
        * typeck.c (build_binary_op): Disallow vector float types with
        BIT_IOR_EXPR, BIT_AND_EXPR, and BIT_XOR_EXPR.

2007-08-11  Ian Lance Taylor  <iant@google.com>

        * cp-objcp-common.c (cxx_get_alias_set): Change return type to
        alias_set_type.
        * cp/cp-tree.h (cxx_get_alias_set): Update declaration.

2007-08-10  Ollie Wild  <aaw@google.com>

        * name-lookup.c (do_nonmember_using_decl): Print an error for ambiguous
        type lookups.
        (ambiguous_decl): Construct tree of ambiguous types.  Remove extaneous
        function parameter.
        (unqualified_namespace_lookup): Fix ambiguous_decl call.
        (lookup_using_namespace): Fix ambiguous_decl call.
        (qualified_lookup_using_namespace): Fix ambiguous_decl call.

2007-08-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * call.c (name_as_c_string): Use CONST_CAST.
        * decl.c (build_decl): Likewise.
        * parser.c (cp_parser_string_literal): Likewise.

2007-08-10  Paolo Carlini  <pcarlini@suse.de>

        PR c++/17763
        * error.c (dump_expr): Consistently use the *_cxx_*
        variants of the pretty-print functions.

2007-08-10  Paolo Carlini  <pcarlini@suse.de>

        PR c++/22256
        * decl.c (check_special_function_return_type): Just error
        on return type specified for conversion operator.

2007-08-09  Daniel Berlin  <dberlin@dberlin.org>

        * typeck2.c (readonly_error): Handle general expressions.
        * error.c (dump_expr): Handle POINTER_PLUS_EXPR

2007-08-06  Dan Hipschman  <dsh@google.com>

        * method.c (use_thunk): Use DECL_NAME instead of DECL_RTL to
        access function name.

2007-08-04  Alfred Minarik  <a.minarik@aon.at>

        PR pch/13676
        * lang-specs.h: Add .hp, .hxx, .hpp, .h, .HPP, .tcc as c++ header.
        * g++spec.c (lang_specific_driver): Check them.

2007-08-06  Paolo Carlini  <pcarlini@suse.de>

        PR c++/19532
        * pt.c (inline_needs_template_parms): Fix comment; change return type
        to bool.

2007-08-05  Volker Reichelt  <v.reichelt@netcologne.de>

        Revert:
        2007-03-26  Dirk Mueller  <dmueller@suse.de>

        * parser.c (cp_parser_member_declaration): Pedwarn
        about stray semicolons after member declarations.

2007-08-02  Lee Millward  <lee.millward@gmail.com>

        PR c++/30849
        PR c++/30850
        PR c++/30851
        * parser.c (cp_parser_asm_definition): Detect and discard asm
        statements with invalid inputs or outputs.
        (cp_parser_asm_operand_list): Return error mark node if any
        of the operands are invalid. Adjust documentation.
        
2007-08-02  Nick Clifton  <nickc@redhat.com>

        * typeck.c: Change copyright header to refer to version 3 of the
        GNU General Public License and to point readers at the COPYING3
        file and the FSF's license web page.
        * optimize.c, lang-specs.h, init.c, class.c, repo.c, decl.c,
        config-lang.in, cp-tree.def, call.c, decl.h, ptree.c,
        Make-lang.in, method.c, rtti.c, cp-objcp-common.c, g++spec.c,
        cp-objcp-common.h, except.c, error.c, operators.def, cvt.c,
        tree.c, mangle.c, cp-tree.h, dump.c, search.c, friend.c, expr.c,
        cp-gimplify.c, cxx-pretty-print.c, cp-lang.c, typeck2.c, pt.c,
        cxx-pretty-print.h, semantics.c, name-lookup.c, lex.c, decl2.c,
        name-lookup.h, parser.c: Likewise.

2007-08-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR middle-end/32668
        * call.c (magic_varargs_p): Honor the "type generic" attribute.

2007-07-30  Paolo Carlini  <pcarlini@suse.de>

        PR c++/32108
        * semantics.c (finish_label_stmt): Reject the __label__
        extension outside function scopes.

2007-07-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * parser.c (eof_token): Un-constify.
        (cp_lexer_new_main, cp_lexer_new_from_tokens, VEC_alloc,
        cp_lexer_consume_token, cp_lexer_purge_token): Remove spurious
        casts.

2007-07-28  Kazu Hirata  <kazu@codesourcery.com>

        * pt.c, tree.c, typeck2.c: Fix comment typos.

2007-07-28  Simon Martin  <simartin@users.sourceforge.net>
            Mark Mitchell  <mark@codesourcery.com>

        PR c++/30917
        * name-lookup.c (lookup_name_real): Non namespace-scope bindings can be
        hidden due to friend declarations in local classes.

2007-07-27  Douglas Gregor  <doug.gregor@gmail.com>

        * typeck.c (structural_comptypes): Compare DECLTYPE_TYPE nodes.
        * cp-tree.def (DECLTYPE_TYPE): New.
        * error.c (dump_type): Dump DECLTYPE_TYPE nodes.
        (dump_type_prefix): Ditto.
        (dump_type_suffix): Ditto.
        * tree.c (DECLTYPE_TYPE): Walk DECLTYPE_TYPE nodes.
        * mangle.c (write_type): Handle DECLTYPE_TYPE.
        * cp-tree.h (IS_AGGR_TYPE): DECLTYPE_TYPE nodes can be aggregate
        types.
        (DECLTYPE_TYPE_EXPR): New.
        (DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P): New.
        (finish_declared_type): Declare.
        * cxx-pretty-print.c (pp_cxx_type_specifier_seq): Print
        DECLTYPE_TYPE nodes.
        (pp_cxx_type_id): Ditto.
        * pt.c (for_each_template_parm_r): Walk DECLTYPE_TYPE children.
        (tsubst): Substitute into a DECLTYPE_TYPE node.
        (tsubst_copy): Ditto.
        (unify): Cannot deduce anything from TYPEOF_TYPE or DECLTYPE_TYPE
        nodes.
        (dependent_type_p_r): DECLTYPE_TYPE types are always dependent.
        * semantics.c (finish_typeof): TYPEOF_TYPE types need to use
        structural equality (because we can't hash the expressions).
        (finish_declared_type): New.
        * lex.c (reswords): Add "decltype" keyword.
        * parser.c cp_lexer_next_token_is_decl_specifier_keyword
        (cp_parser_postfix_expression): Add member_access_only_p to
        restrict postfix expression to member access expressions.
        (cp_parser_unary_expression): Update call to
        cp_parser_postfix_expression to reflect new parameter.
        (cp_parser_declared_type): New.
        (cp_parser_simple_type_specifier): Parse decltype types.

2007-07-27  Mark Mitchell  <mark@codesourcery.com>

        PR c++/32346
        * call.c (convert_for_arg_passing): Only widen bitfields to their
        declared types if necessary.

2007-07-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * parser.c (cp_parser_string_literal, cp_parser_sizeof_operand):
        Constify.

2007-07-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * decl.c (typename_hash, typename_compare): Constify.
        * mangle.c (hash_type, compare_type): Likewise.
        * pt.c (eq_local_specializations, hash_local_specialization):
        Likewise.
        * tree.c (cplus_array_hash, cplus_array_compare, list_hash_eq,
        list_hash): Likewise.
        * typeck2.c (pat_compare): Likewise.

2007-07-24  Nathan Sidwell  <nathan@codesourcery.com>

        * method.c (implicitly_declare_fn): Increase alignment if member
        function pointer format requires it.

2007-07-24  Paolo Carlini  <pcarlini@suse.de>

        PR c++/29001
        * typeck.c (check_return_expr): Do not pass a null argument
        to null_ptr_cst_p.

2007-07-24  Paolo Carlini  <pcarlini@suse.de>

        PR c++/32561
        * decl.c (redeclaration_error_message): Call DECL_ANON_UNION_VAR_P
        only on VAR_DECL.

2007-07-22  Nathan Sidwell  <nathan@codesourcery.com>

        PR c++/32839
        * typeck.c (convert_arguments): Only use default args if we have
        a function decl.

        PR c++/30818
        * typeck.c (structural_comptypes): No need to check
        resolve_typename_type return value here.
        * cp-tree.h (TYPENAME_IS_RESOLVING_P): New.
        * pt.c (resolve_typename_type): Follow typename typedefs.  Return
        original type rather than error_mark_node in case of failure.
        * parser.c (cp_parser_nested_name_specifier_opt): Adjust
        resolve_typename_type result check.
        (cp_parser_direct_declarator, cp_parser_head,
        cp_parser_constructor_declarator_p): Likewise.

2007-07-12  Kazu Hirata  <kazu@codesourcery.com>

        * pt.c (template_parms_variadic_p): Remove.
        * cp-tree.h: Remove the prototype for template_parms_variadic_p.

2007-07-12  Jakub Jelinek  <jakub@redhat.com>

        PR c++/30854
        * error.c (dump_expr) <case AGGR_INIT_EXPR>: Pass true as last
        argument to dump_aggr_init_expr_args instead of false.

2007-07-11  Douglas Gregor  <doug.gregor@gmail.com>

        * typeck.c (comptypes): When USE_CANONICAL_TYPES, use the
        canonical types; otherwise, fall back to structural type
        comparisons. If ENABLE_CHECKING and USE_CANONICAL_TYPES, give an
        internal compiler error if the canonical types are wrong.
        
2007-07-11  Paolo Carlini  <pcarlini@suse.de>

        PR c++/32560
        * parser.c (cp_parser_make_indirect_declarator): When the
        the code argument is ERROR_MARK return cp_error_declarator.

2007-07-09  Geoffrey Keating  <geoffk@apple.com>

        PR 32617
        * decl.c (cxx_init_decl_processing): Don't set
        force_align_functions_log.
        (grokfndecl): Honour ptrmemfunc_vbit_in_pfn.
        * typeck.c (cxx_alignof_expr): When alignof is used on a plain
        FUNCTION_DECL, return its alignment.

2007-07-09  Richard Guenther  <rguenther@suse.de>

        * decl.c (start_preparsed_function): Do not promote return type.

2007-07-08  Paolo Carlini  <pcarlini@suse.de>

        PR c++/30535
        * pt.c (unify): Never pass error_mark_node to template_decl_level.

2007-07-07  Mark Mitchell  <mark@codesourcery.com>

        PR c++/32232
        * pt.c (resolve_overloaded_unification): Robustify.  Return a
        bool, not an int.
        (type_unification_real): Adjust accordingly.

2007-07-06  Richard Guenther  <rguenther@suse.de>

        * init.c (build_new_1): Use the correct pointer type.
        * typeck2.c (build_m_component_ref): Likewise.

2007-07-05  Mark Mitchell  <mark@codesourcery.com>

        PR c++/32245
        * init.c (build_zero_init): Always build an initializer for
        non-static storage.
        * typeck2.c (build_functional_cast): Use build_zero_init.

        PR c++/32251
        * init.c (build_new_1): Always pass the allocation function to
        build_op_delete_call.
        * call.c (build_op_delete_call): Handle operator delete with a
        variable-argument list.  Do not issue an error when no matching
        deallocation function is available for a new operator.

        PR c++/31992
        * cp-tree.h (any_value_dependent_elements_p): Declare it.
        * decl.c (value_dependent_init_p): New function.
        (cp_finish_decl): Use it.
        * pt.c (value_dependent_expression_p): Use
        any_value_dependent_elements_p.
        * parser.c (cp_parser_primary_expression): Add comment about
        treating dependent qualified names as integral
        constant-expressions.

2007-07-04  Douglas Gregor  <doug.gregor@gmail.com>

        * decl.c (build_ptrmemfunc_type): Always use structural equality
        tests when comparing pointer-to-member-function types, because the
        handling of TYPE_GET_PTRMEMFUNC_TYPE currently defeats canonical
        types.
        
2007-07-03  Mark Mitchell  <mark@codesourcery.com>

        * init.c (build_new): Tweak comment.

2007-06-29  Dave Brolley  <brolley@redhat.com>

        PR c++/31743
        * parser.c (cp_parser_new_type_id): Don't reduce a named array
        type to its base type and number of elements here.
        * init.c (build_new): Call complete_type_or_else to ensure that the
        type is complete and to issue a diagnostic if it is not.
        (build_new_1): Don't call complete_type_or_else here.

2007-07-03  Richard Guenther  <rguenther@suse.de>

        PR c++/32609
        * class.c (fixed_type_or_null): Re-lookup the hashtable slot
        after recursing.

2007-07-02  Simon Baldwin  <simonb@google.com>

        * parser.c (cp_parser_elaborated_type_specifier): Added a warning
        for inner-style nested forward declarations that don't declare
        anything useful.

2007-07-02  Jakub Jelinek  <jakub@redhat.com>

        PR c++/31748
        * semantics.c (finish_omp_clauses): Use %qD instead of %qE for
        DECL_P in not a variable and appears more than once error messages.

2007-07-01  Ollie Wild  <aaw@google.com>

        * name-lookup.c (ambiguous_decl): Fix case when new->value is hidden.
        (select_decl): Remove function.
        (unqualified_namespace_lookup): Populate binding by calling
        ambiguous_decl.  Remove select_decl call.
        (lookup_qualified_name): Remove select_decl call.
        * decl.c (lookup_and_check_tag): Check for ambiguous references.
        * parser.c (cp_parser_elaborated_type_specifier): Skip redundant error
        generation when name lookup is ambiguous.

2007-06-29  Douglas Gregor  <doug.gregor@gmail.com>

        PR c++/31724
        * init.c (build_new_1): Use structural equality on the copy of the
        array type.

2007-06-28  Geoffrey Keating  <geoffk@apple.com>

        * decl2.c (determine_visibility): Implement
        flag_visibility_ms_compat effect on type info.
        * decl.c (cxx_init_decl_processing): Implement
        global effect of flag_visibility_ms_compat.

2007-06-28  Geoffrey Keating  <geoffk@apple.com>

        * decl2.c (start_objects): Mark constructor-running function
        as artificial.

2007-06-26  Simon Martin  <simartin@users.sourceforge.net>

        PR c++/32111
        * decl.c (grokdeclarator): Reset friendp for member functions declared
        friend of their own class.

2007-06-23  Mark Mitchell  <mark@codesourcery.com>

        * decl2.c (determine_visibility): Don't look for dllexport here.
        (determine_visibility_from_class): Tidy.

2007-06-18  Simon Baldwin <simonb@google.com>

        PR c++/31923
        * parser.c (cp_parser_single_declaration): Added check for storage
        class other than sc_none in parsed declaration, and a flag to indicate
        if the call is part of an explicit template specialization parse.
        * (cp_parser_explicit_specialization): Specialization check flag added
        to call to cp_parser_single_declaration(), set true.
        * (cp_parser_template_declaration_after_export): Specialization check
        flag added to call to cp_parser_single_declaration(), set false.
        * pt.c (check_explicit_specialization): Added code to copy visiblity
        and linkage from the templated function to the explicit specialization.

2007-06-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * typeck.c (build_binary_op): For templates build the
        expression in pieces to avoid the assert in build2_stat.
        (get_member_function_from_ptrfunc):
        Change over to using POINTER_PLUS_EXPR and convert
        the second operand to sizetype.
        * typeck2.c (build_m_component_ref):  Likewise.
        * init.c (expand_virtual_init): Create a POINTER_PLUS_EXPR
        instead of PLUS_EXPR for pointers.
        (build_new_1): Likewise.
        (build_vec_delete_1): Likewise.
        (build_vec_delete): Likewise.
        * class.c (build_base_path): Likewise.
        (build_base_path): Likewise.
        (convert_to_base_statically): Likewise.
        (fixed_type_or_null): Handle POINTER_PLUS_EXPR.
        (get_vtbl_decl_for_binfo): Handle POINTER_PLUS_EXPR
        instead of PLUS_EXPR.
        (dfs_accumulate_vtbl_inits): Create a POINTER_PLUS_EXPR
        instead of PLUS_EXPR for pointers.
        * call.c (build_special_member_call): Likewise.
        * rtti.c (build_headof): Likewise.
        Use sizetype instead of ptrdiff_type_node.
        (tinfo_base_init): Create a POINTER_PLUS_EXPR
        instead of PLUS_EXPR for pointers.
        * except.c (expand_start_catch_block):  Do a
        NEGATIVE and then a POINTER_PLUS_EXPR instead
        of a MINUS_EXPR.
        * cp-gimplify.c (cxx_omp_clause_apply_fn): Convert
        PLUS_EXPR on pointer types over to use
        POINTER_PLUS_EXPR and remove the conversion
        to the pointer types.
        * method.c (thunk_adjust): Use POINTER_PLUS_EXPR for
        adding to a pointer type. Use size_int instead of
        ssize_int. Convert the index to sizetype before
        adding it to the pointer.

2007-06-15  Mark Mitchell  <mark@codesourcery.com>

        * cp-tree.h (DECL_VAR_MARKED_P): Remove.
        (DECL_ANON_UNION_VAR_P): New macro.
        * class.c (fixed_type_or_null): Tidy.  Use a hash table, rather
        than DECL_VAR_MARKED_P, to keep track of which variables we have
        seen.
        * decl.c (redeclaration_error_message): Complain about redeclaring
        anonymous union members at namespace scope.
        * decl2.c (build_anon_union_vars): Set DECL_ANON_UNION_VAR_P.

2007-06-14  Geoff Keating  <geoffk@apple.com>

        * decl2.c (determine_visibility): Ensure that functions with
        hidden types as parameters are hidden.

        PR 31093
        * decl2.c (determine_visibility): Remove duplicate code for
        handling type info.

2007-06-12  Ian Lance Taylor  <iant@google.com>

        PR libstdc++/29286
        * init.c (avoid_placement_new_aliasing): New static function.
        (build_new_1): Call it.

2007-06-11  Rafael Avila de Espindola  <espindola@google.com>

        * cp-objcp-common.h (LANG_HOOKS_SIGNED_TYPE): Remove.
        (LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): Remove.

2007-06-08  Jakub Jelinek  <jakub@redhat.com>

        PR c++/32177
        * semantics.c (finish_omp_for): Call fold_build_cleanup_point_expr
        on init, the non-decl cond operand and increment value.

2007-06-07  Simon Martin  <simartin@users.sourceforge.net>

        PR c++/30759
        * decl.c (check_initializer): Report an error when a brace enclosed
        initializer is used for a non-aggregate type in C++98.
        (redeclaration_error_message): Rewrote flag_cpp0x in terms of
        cxx_dialect.
        (grokdeclarator): Likewise.
        (move_fn_p): Likewise.
        * typeck.c (check_return_expr): Likewise.
        * call.c (reference_binding): Likewise.
        * error.c (cp_cpp_error): Likewise.
        * pt.c (check_default_tmpl_args): Likewise.
        (tsubst): Likewise.
        * lex.c (init_reswords): Likewise.
        * parser.c (p_parser_primary_expression): Likewise.
        (TOKEN_PRECEDENCE): Likewise.
        (cp_parser_init_declarator): Likewise.
        (cp_parser_ptr_operator): Likewise.
        (cp_parser_parameter_declaration): Likewise.
        (cp_parser_enclosed_template_argument_list): Likewise.
        (cp_parser_skip_to_end_of_template_parameter_list): Likewise.
        (cp_parser_next_token_ends_template_argument_p): Likewise.

2007-06-04  Simon Baldwin  <simonb@google.com>

        * decl.c (grokdeclarator): Readability change.  Moved case labels
        into direct switch statement scope.

2007-06-04  Paolo Carlini  <pcarlini@suse.de>

        * call.c (convert_like_real): Remove pointless code.

2007-05-31  Mark Mitchell  <mark@codesourcery.com>

        * decl.c (get_atexit_fn_ptr_type): New function.
        (get_atexit_node): Use it.
        (start_cleanup_fn): Likewise.
        (register_dtor_fn): Use the object's destructor, instead of a
        separate cleanup function, where possible.
        * cp-tree.h (CPTI_ATEXIT_FN_PTR_TYPE): New enumerator.
        (atexit_fn_ptr_type_node): New macro.
        * decl2.c (build_cleanup): Use build_address.

2007-05-31  Daniel Berlin  <dberlin@dberlin.org>

        * typeck.c (build_binary_op): Include types in error.

2007-05-31  Jakub Jelinek  <jakub@redhat.com>

        PR c++/31806
        * decl.c (cp_finish_decl): Also clear was_readonly if a static var
        needs runtime initialization.

2007-05-31  Paolo Carlini  <pcarlini@suse.de>

        PR c++/32158
        * semantics.c (finish_trait_expr): Complete the types.

2007-05-30  Russell Yanofsky <russ@yanofsky.org>
            Douglas Gregor <doug.gregor@gmail.com>
            Pedro Lamarao <pedro.lamarao@mndfck.org>
            Howard Hinnant <howard.hinnant@gmail.com>

        PR c++/7412
        PR c++/29939
        * typeck.c (comptypes): Don't consider rvalue and lvalue
        reference types to be equivalent.
        (check_return_expr): Move from certain lvalues when returning
        them.
        * decl.c (grokdeclarator): Implement reference collapsing.
        (copy_fn_p): Don't consider constructors taking rvalue references
        to be copy constructors.
        (move_fn_p): New.
        * call.c (conversion): New "rvaluedness_matches_p" member.
        (convert_class_to_reference): Require reference type as first
        parameter instead of base type.
        (reference_binding): Add logic to handle rvalue references.
        (implicit_conversion): Update inaccurate comment.
        (convert_like_real): Disable creation of temporaries that are
        impossible to initialize for types with move constructors.
        (build_over_call): Elide move constructors when possible.
        (maybe_handle_implicit_object): Set "rvaluedness_matches_p".
        (maybe_handle_ref_bind): Return conversion instead of type node.
        (compare_ics): Add logic to use "rvaluedness_matches_p" values to
        determine preferred conversion sequences.
        * cp-tree.h (TYPE_REF_IS_RVALUE): New.
        (LOOKUP_PREFER_RVALUE): New.
        (DECL_MOVE_CONSTRUCTOR_P): New.
        (struct cp_declarator): Add "reference" member for reference
        types, with new "rvalue_ref" flag.
        (cp_build_reference_type): Declare.
        (move_fn_p): Declare.
        * error.c (dump_type_prefix): Format rvalue reference types
        correctly in error messages.
        * except.c (build_throw): Move from certain lvalues when
        throwing.
        * mangle.c (write_type): Mangle rvalue references differently
        than regular references.
        * parser.c (make_reference_declarator): Add boolean parameter for
        rvalue references.
        (cp_parser_make_indirect_declarator): New.
        (cp_parser_new_declarator_opt): Call
        cp_parser_make_indirect_declarator. 
        (cp_parser_conversion_declarator_opt): Ditto.
        (cp_parser_declarator): Ditto.
        (cp_parser_ptr_operator): Parse "&&" tokens into rvalue reference
        declarators.
        * pt.c (tsubst): Implement reference collapsing.
        (maybe_adjust_types_for_deduction): Implement special template
        parameter deduction rule for rvalue references.
        (type_unification_real): Update calls to
        maybe_adjust_types_for_deduction.
        (try_one_overload): Ditto.
        (unify_pack_expansion): Ditto.
        * tree.c (lvalue_p_1): Handle rvalue reference types.
        (cp_build_reference_type): New.

2007-05-30  Jakub Jelinek  <jakub@redhat.com>

        PR c++/31809
        * decl.c (cp_finish_decl): Clear TREE_READONLY flag on TREE_STATIC
        variables that need runtime initialization.

2007-05-28  Andrew Pinski  <Andrew_pinski@playstation.sony.com>

        PR c++/31339
        * typeck.c (build_unary_op <case PREINCREMENT_EXPR,
        case POSTINCREMENT_EXPR, case PREDECREMENT_EXPR,
        case POSTDECREMENT_EXPR>): Return the error_mark_node
        if either the real or imaginary parts would an
        error_mark_node.
        
2007-05-25  Simon Martin  <simartin@users.sourceforge.net>
            Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/31745
        * parser.c (cp_parser_skip_to_closing_brace): Return true if the next
        token is a closing brace, false if there are no tokens left.
        (cp_parser_namespace_alias_definition): Only consume the next token if
        it is a closing brace.

        * parser.c (cp_parser_class_specifier): Likewise.

2007-05-25  H.J. Lu  <hongjiu.lu@intel.com>

        * semantics.c (finish_member_declaration): Fix a typo in the
        last checkin.

2007-05-25  Douglas Gregor <doug.gregor@gmail.com>

        PR c++/31431
        PR c++/31432
        PR c++/31434
        PR c++/31435
        PR c++/31437
        PR c++/31438
        PR c++/31442
        PR c++/31443
        PR c++/31444
        PR c++/31445
        * error.c (dump_type): Dump TYPE_ARGUMENT_PACK nodes.
        * cp-tree.h (check_for_bare_parameter_packs): Returns bool.
        * pt.c (check_for_bare_parameter_packs): Return bool indicated
        whether everything was okay. Fix indentation.
        (push_template_decl_real): Check for bare parameter packs in
        function parameters; where errors occur, mark the parameter types
        with ERROR_MARK_NODEs to avert ICEs.
        (coerce_template_parameter_pack): New.
        (coerce_template_parms): Moved parameter pack coercion into
        coerce_template_parameter_pack, and permit it anywhere in the
        template parameter list (not just at the end). Parameter and
        argument indices can vary (somewhat) separately now, so add
        PARM_IDX and ARG_IDX.
        (fn_type_unification): Don't set an argument pack as incomplete if
        no argument pack was deduced.
        (type_unification_real): If a type parameter is a parameter pack
        and has not otherwise been deduced, it will be deduced to an empty
        parameter pack.
        (more_specialized_fn): Use the actual lengths of the argument
        lists when comparing against expansions.
        * semantics.c (finish_member_declaration): If a field's type has
        bare parameter packs, error and set its type to ERROR_MARK_NODE.

2007-05-24  Danny Smith  <dannysmith@users.sourceforge.net>

        PR target/27067
        * mangle.c (mangle_decl): Call targetm.mangle_decl_assembler_name.

2007-05-22  Ollie Wild  <aaw@google.com>

        * name-lookup.c (ambiguous_decl): Adds check for hidden types.
        (unqualified_namespace_lookup): Adds check for hidden types.

2007-05-22  Ollie Wild  <aaw@google.com>

        * decl.c (duplicate_decls): Verify namespace names are unique.

2007-05-21  Mark Mitchell  <mark@codesourcery.com>

        * decl.c (cxx_maybe_build_cleanup): Handle
        __attribute__((cleanup)).

2007-05-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * cvt.c (cp_convert_and_check): Don't check warnings if the
        conversion failed.

2007-05-18  Geoffrey Keating  <geoffk@apple.com>

        * mangle.c (write_real_cst): Use 'unsigned long' for %lx.

2007-05-14  Paolo Carlini  <pcarlini@suse.de>

        PR c++/29928
        * rtti.c (get_tinfo_decl_dynamic, get_typeid): Try to complete the
        type only if is a class type (5.2.8/4).

2007-05-14  Rafael Avila de Espindola  <espindola@google.com>

        * cp-objcp-common.h (LANG_HOOKS_UNSIGNED_TYPE): Remove.
        * decl.c (grokdeclarator): Use unsigned_type_for instead of
        c_common_unsigned_type.

2007-05-11  Silvius Rus  <rus@google.com>

        * cp/typeck.c (build_indirect_ref): Add call to
        strict_aliasing_warning.
        (build_reinterpret_cast_1): Condition call to
        strict_aliasing_warning. 

2007-05-11  Jan Hubicka  <jh@suse.cz>

        * semantics.c (expand_or_defer_fn): Do not call c_record_cdtor_fn.
        * decl2.c (start_objects): ctors and dtors are no longer public.
        (cp_write_global_declarations): Do not call c_build_cdtor_fns.
        
2007-05-07  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * typeck.c (build_unary_op): Remove code that used to
        handle non lvalue increments/decrements.

2007-05-07  Mike Stump  <mrs@apple.com>

        * parser.c (check_empty_body): Add.
        (cp_parser_iteration_statement): Add call to check_empty_body.

2007-05-05  Geoffrey Keating  <geoffk@apple.com>

        PR 31775
        * mangle.c (write_mangled_name): Mangle static variable names.
        (write_unqualified_name): Use local-source-name for
        namespace-scope static variables.

2007-05-04  Dirk Mueller  <dmueller@suse.de>

        * cp-tree.h (DECL_MAIN_P): only if -ffreestanding is
        not in effect.

2007-05-02  Seongbae Park  <seongbae.park@gmail.com>

        PR c++/31663
        * decl2.c (constrain_class_visibility): 
        Use strip_pointer_or_array_types instead of strip_array_types.

2007-04-28  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR C++/30221
        * decl.c (reshape_init_r): Don't reshape the first element if it
        is a pointer to member function.

2007-04-27  Simon Baldwin  <simonb@google.com>

        * decl.c (grokparms): Changed message format from %qD to %qE.

2007-04-27  Douglas Gregor  <doug.gregor@gmail.com>

        * error.c (maybe_warn_variadic_templates): Variadic templates are
       now in C++0x, so only warn about them in C++98 mode.
        
2007-04-26  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR C++/30016
        * typeck.c (build_reinterpret_cast_1): Only allow conversion to
        integeral types from vectors types.

2007-04-26  Jakub Jelinek  <jakub@redhat.com>

        PR c++/31598
        * semantics.c (finish_omp_clauses): Don't create CP_OMP_CLAUSE_INFO
        for type dependent OMP_CLAUSE_DECLs.

2007-04-24  Mark Mitchell  <mark@codesourcery.com>

        PR c++/31338
        * cp-tree.h (ARITHMETIC_TYPE): Include COMPLEX_TYPE.
        * typeck.c (type_after_usual_arithmetic_conversions): Adjust, as
        COMPLEX_TYPE is now an ARITHMETIC_TYPE.
        * init.c (build_zero_init): Adjust, as
        COMPLEX_TYPE is now a SCALAR_TYPE.
        * typeck2.c (digest_init): Allow brace-enclosed initializers for
        COMPLEX_TYPE, even though that is now a SCALAR_TYPE.

2007-04-25  Paolo Carlini  <pcarlini@suse.de>

        * semantics.c (classtype_has_nothrow_copy_or_assign_p): Adjust
        per N2255; rename as classtype_has_nothrow_assign_or_copy_p.
        (trait_expr_value): Adjust.

2007-04-23  Simon Baldwin  <simonb@google.com>

        * decl.c (grokparms): Added new error for duplicate function
        parameters names in function prototypes, to match gcc behavior.

2007-04-23  Jan Hubicka  <jh@suse.cz>

        * cp/decl2.c (finish_objects): Do not call target constructor/destructor
        bits dirrectly.

2007-04-21  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * cp-tree.h (lang_tree_node): Use GENERIC_NEXT
        instead of checking GIMPLE_STMT_P in chain_next.

2007-04-17  Mark Mitchell  <mark@codesourcery.com>

        PR c++/31513
        * call.c (convert_for_arg_passing): Convert bitfields to their
        declared types.

2007-04-17  Simon Martin  <simartin@users.sourceforge.net>

        PR c++/31517
        * pt.c (value_dependent_expression_p): Handle MODOP_EXPRs.

2007-04-16  Seongbae Park <seongbae.park@gmail.com>

        PR c++/29365
        * cp/decl2.c (constrain_class_visibility):
        Do not warn about the use of anonymous namespace in the main input file.

2007-04-15  Mark Mitchell  <mark@codesourcery.com>

        * cp-tree.h (current_template_parms): Fix typo in comment.

2007-04-15  Kazu Hirata  <kazu@codesourcery.com>

        * cp-tree.h, error.c: Fix comment typos.

2007-04-13  Jason Merrill  <jason@redhat.com>

        PR c++/31074
        * call.c (reference_binding): Add c_cast_p parm.  If true,
        add quals to TO as needed to make it reference-compatible.

2007-04-11  Jan Hubicka  <jh@suse.cz>

        * cp/class.c (convert_to_base_statically): Fold produced tree; verify
        that we are not processing template_decl.

2007-04-09  Mark Mitchell  <mark@codesourcery.com>

        PR c++/31449
        * class.c (build_base_path): Ensure that the converted pointer has
        the same cv-qualification as the input.

2007-04-09  Paolo Carlini  <pcarlini@suse.de>

        * tree.c (cp_tree_equal): Deal with TRAIT_EXPR.

2007-04-08  Steven Bosscher  <steven@gcc.gnu.org>

        * cp-objcp-common.h (LANG_HOOKS_TREE_INLINING_ADD_PENDING_FN_DECLS):
        Do not set it.
        (LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P): Do not set it.
        * tree.c (cp_add_pending_fn_decls): Remove.
        * cp-tree.h (cp_add_pending_fn_decls): Remove prototype.

2007-04-07  Daniel Berlin  <dberlin@dberlin.org>

        Revert change removing staticp.

2007-04-06  Daniel Berlin  <dberlin@dberlin.org>

        * cp-objcp-common.c (cxx_staticp): Remove.
        * cp-objcp-common.h (LANG_HOOKS_STATICP): Remove.
        * cp-tree.h (cxx_staticp):      

2007-04-04  Danny Smith  <dannysmith.users.sourceforge.net>

        * class.c (check_for_override): Don't remove dllmport attribute
        of virtual methods.

2007-04-03  Jakub Jelinek  <jakub@redhat.com>

        PR c++/30847
        * typeck.c (build_modify_expr): For COND_EXPR on LHS, if RHS has void
        type issue error and return early.

2007-03-30  Jason Merrill  <jason@redhat.com>

        PR c++/31187
        * typeck.c (cp_type_readonly): New fn.
        * cp-tree.h: Declare it.
        * decl.c (start_decl): Set implicit DECL_THIS_STATIC here.
        (cp_finish_decl): Not here.

2007-03-31  Richard Guenther  <rguenther@suse.de>

        * optimize.c (maybe_clone_body): Replace splay-tree usage by
        pointer-map.

2007-03-31  Douglas Gregor  <doug.gregor@gmail.com>

        PR c++/31138
        PR c++/31140
        PR c++/31141
        * parser.c (declarator_can_be_parameter_pack): New.
        (cp_parser_template_parameter): Only parse the `...' if the
        declarator can be a parameter pack.
        (cp_parser_parameter_declaration): Ditto. Also, handle when TYPE
        is NULL.
        * pt.c (find_parameter_packs_r): Look into the bounds on integer
        types (they could be used as array bounds). 
        (check_for_bare_parameter_packs): Deal with TEMPLATE_PARM_INDEX.
        (tsubst_pack_expansion): Handle failure to expand parameter
        packs.
        
2007-03-30  Paolo Carlini  <pcarlini@suse.de>

        PR c++/26099
        * cp-tree.h (enum cp_trait_kind, struct tree_trait_expr,
        TRAIT_EXPR_TYPE1, TRAIT_EXPR_TYPE2, TRAIT_EXPR_KIND): Add.
        (enum cp_tree_node_structure_enum, union lang_tree_node): Update.
        (CLASS_TYPE_NON_UNION_P): Add.
        (struct lang_type_class): Add has_complex_dflt.
        (TYPE_HAS_COMPLEX_DFLT, TYPE_HAS_TRIVIAL_DFLT): Add.
        (locate_copy, locate_ctor, locate_dtor, finish_trait_expr): Declare.
        * cp-tree.def: Add TRAIT_EXPR.
        * cp-objcp-common.c (cp_tree_size): Add TRAIT_EXPR case.
        * lex.c (struct resword): Add __has_nothrow_assign,
        __has_nothrow_constructor, __has_nothrow_copy, __has_trivial_assign,
        __has_trivial_constructor, __has_trivial_copy,
        __has_trivial_destructor, __has_virtual_destructor, __is_abstract,
        __is_base_of, __is_class, __is_convertible_to, __is_empty, __is_enum,
        __is_pod, __is_polymorphic, __is_union.
        * parser.c (cp_parser_primary_expression): Deal with the new RIDs.
        (cp_parser_trait_expr): New.
        * semantics.c (finish_trait_expr, trait_expr_value
        classtype_has_nothrow_copy_or_assign_p): New.
        * method.c (locate_copy, locate_ctor, locate_dtor): Do not define
        as static.
        * decl.c (cp_tree_node_structure): Add TRAIT_EXPR.
        * class.c (check_bases, check_field_decl, check_bases_and_members):
        Deal with TYPE_HAS_COMPLEX_DFLT (t) too.
        * pt.c (uses_template_parms, tsubst_copy_and_build,
        value_dependent_expression_p, type_dependent_expression_p): Deal with
        TRAIT_EXPR.
        * tree.c (cp_walk_subtrees): Deal with TRAIT_EXPR.

2007-03-29  Richard Guenther  <rguenther@suse.de>

        * tree.c (cp_walk_subtrees): Do not set input_location.

2007-03-28  Simon Martin  <simartin@users.sourceforge.net>

        PR c++/29077
        * decl.c (grokfndecl): Properly setup decl if it is a constructor or a
        destructor.

2007-03-28 Douglas Gregor <doug.gregor@gmail.com>

        * parser.c (struct cp_parser): Update comment for
        greater_than_is_operator_p.
        (cp_parser_primary_expression): In C++0x mode, a cast operator can
        be terminated with a `>>' token when !GREATER_THAN_IS_OPERATOR_P.
        (TOKEN_PRECEDENCE): In C++0x mode, `>>' is treated like `>' when
        !GREATER_THAN_IS_OPERATOR_P.
        (cp_parser_binary_expression): When -Wc++0x-compat, warn about
        `>>' operators that will become two `>' tokens in C++0x.
        (cp_parser_parameter_declaration): Treat `>>' like `>' in C++0x
        mode, allowing it to terminate default arguments.
        (cp_parser_enclosed_template_argument_list): In C++0x mode, treat
        `>>' like two consecutive `>' tokens.
        (cp_parser_skip_to_end_of_template_parameter_list): Ditto.
        (cp_parser_next_token_ends_template_argument_p): In C++0x, `>>'
        ends a template argument.

2007-03-28  Douglas Gregor  <doug.gregor@gmail.com>

        * decl.c (redeclaration_error_message): Complain when redeclaring
        a friend function with default template arguments (C++0x mode only).
        * cp-tree.h (check_default_tmpl_args): Declare.
        * pt.c (check_default_tmpl_args): In C++0x mode, permit default
        template arguments in function templates. Add support for checking
        the default template arguments of friend templates.
        (push_template_decl_real): Fix call to check_default_tmpl_args.
        (type_unification_real): If a template parameter has not been
        deduced but provides a default template argument, substitute into
        that default template argument.
        * parser.c (cp_parser_init_declarator): When declaring (but not
        defining!) a function template in C++0x mode, check for default
        template arguments.

2007-03-28 Douglas Gregor <doug.gregor@gmail.com>

        PR c++/29993
        * decl.c (grokdeclarator): Deal with cv-qualified function type
        typedefs in the same way for member and non-member functions.

2007-03-26  Dirk Mueller  <dmueller@suse.de>

        * parser.c (cp_parser_member_declaration): Pedwarn
        about stray semicolons after member declarations.

2007-03-26  Paolo Carlini  <pcarlini@suse.de>

        PR c++/30500
        * pt.c (instantiate_decl): Set in_system_header.

2007-03-22  Mark Mitchell  <mark@codesourcery.com>

        * cp-tree.h (current_tempalte_parms): Improve documentation.
        * pt.c (current_template_args): Likewise.

        PR c++/30863
        * parser.c (cp_parser_parse_and_diagnose_invalid_type_name): Do
        not consume tokens when failing.

2007-03-22  Jim Wilson  <wilson@specifix.com>
            Mark Mitchell  <mark@codesourcery.com>

        PR c++/31273
        * call.c (standard_conversion): Use type_decays_to.  Keep FCODE
        consistent with FROM.

2007-03-22  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * error.c (dump_expr): Handle dependent names that designate types.
        * cxx-pretty-print.c (pp_cxx_unqualified_id): Handle TYPENAME_TYPE.

2007-03-17  Kazu Hirata  <kazu@codesourcery.com>

        * cp-tree.def, parser.c, pt.c: Fix comment typos.

2007-03-16  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * cvt.c (cp_convert_and_check) : Define.
        * cp-tree.h (cp_convert_and_check): Declare.
        * call.c (convert_conversion_warnings): Rename to
        conversion_null_warnings.  The warning for floating-point to
        integer is handled by convert_and_check in convert_like_real.
        (convert_like_real): convert_conversion_warnings was renamed as
        conversion_null_warnings.
        * typeck.c (build_binary_op): Use cp_convert_and_check to warn for
        overflow and changes of value during conversion.

2007-03-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/30891
        * parser.c (cp_parser_statement): If 'namespace' is found, this
        only can be a namespace alias definition, so parse it now.
        (cp_parser_namespace_alias_definition): if we find an open brace
        instead of '=', then this is actually a misplaced namespace
        definition.
        
2007-03-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/24924
        * decl.c (cxx_init_decl_processing): Move command-line options
        processing to c-opts.c.
        
2007-03-15  Douglas Gregor  <doug.gregor@gmail.com>

        * ptree.c (cxx_print_type): Use formatting markup for integers
        when printing template parameter index/level/orig level.
        (cxx_print_xnode): Ditto.
        * cp-tree.h (TEMPLATE_PARM_PARAMETER_PACK): Use TREE_LANG_FLAG_0.
        (struct template_parm_index_s): Remove the PARAMETER_PACK member.
        Make INDEX, LEVEL, and ORIG_LEVEL integers instead of
        HOST_WIDE_INTs.
        (struct saved_scope): Make X_PROCESSING_TEMPLATE_DECL an int,
        rather than a HOST_WIDE_INT.
        Turn X_PROCESSING_EXPLICIT_INSTANTIATION, SKIP_EVALUATION, and
        NEED_POP_FUNCTION_CONTEXT into bool bitfields; reorder fields for
        better bit-packing.
        (struct language_function): Make RETURNS_VALUE, RETURNS_NULL,
        RETURNS_ABNORMALLY, IN_FUNCTION_TRY_HANDLER, and
        IN_BASE_INITIALIZER bool bitfields.
        (struct cp_declarator): Make KIND a 4-bit field. Make
        PARAMETER_PACK_P a bool bitfield just after KIND.
        * pt.c (uses_parameter_packs): Destroy the pointer set.
        (make_pack_expansion): Ditto.
        (check_for_bare_parameter_packs): Ditto.
        * name-lookup.c (push_to_top_level): Make need_pop a bool value.
        
2007-03-14  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR c++/31165
        * call.c  (convert_default_arg): Instead of copying the node,
        unshare it.

2007-03-15  Dirk Mueller  <dmueller@suse.de>

        PR c++/30860
        * call.c (convert_conversion_warnings): New..
        (convert_like_real): .. factored out from here.
        (convert_conversion_warnings): Add warning about
        false being converted to NULL in argument passing.

2007-03-14  Dirk Mueller  <dmueller@suse.de>

        * cp/semantics.c (c_finish_if_stmt): Call empty_if_body_warning.
        (finish_do_body): Warn about empty body in do/while statement.

2007-03-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * class.c (warn_hidden): Add OPT_Woverloaded_virtual to warning.
        
2007-03-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/21438
        * typeck.c (build_binary_op): Call warn_for_div_zero instead of
        warning.
        
2007-03-13  Alexandre Oliva  <aoliva@redhat.com>

        * cp/repo.c (init_repo): Initialize random_seed saved options.
        (finish_repo): Adjust.

2007-03-13  Mark Mitchell  <mark@codesourcery.com>

        PR bootstrap/30899
        * Make-lang.in (doc/g++.1): Use $< to specify the location from
        which to copy.

2007-03-12  Seongbae Park <seongbae.park@gmail.com>

        * decl.c (compute_array_index_type): New warning flag warn_vla.

2007-03-12  Mark Mitchell  <mark@codesourcery.com>

        PR c++/30108
        * call.c (convert_default_arg): Copy non-constant arguments.

2007-03-11  Mark Mitchell  <mark@codesourcery.com>

        PR c++/31038
        * parser.c (cp_parser_postfix_expression): Disallow compound
        literals in constant expressions.

        PR c++/30328
        * semantics.c (finish_typeof): Use unlowered_expr_type.
        
2007-03-10  Mark Mitchell  <mark@codesourcery.com>

        PR c++/30274
        * cp-tree.h (unlowered_expr_type): New function.
        * typeck.c (is_bitfield_expr_with_lowered_type): Handle
        COMPOUND_EXPR, MODIFY_EXPR, and SAVE_EXPR.
        (unlowered_expr_type): New function.
        (build_unary_op): Disallow predecrements of bool bitfields.
        * call.c (build_conditional_expr): Use unlowered_expr_type.
        * pt.c (type_unification_real): Likewise.

2007-03-09  Douglas Gregor  <doug.gregor@gmail.com>

        PR c++/20599
        * typeck.c (check_return_expr): Check for bare parameter packs.
        (comptypes): Compare template parameter packs and
        type pack expansions.
        * decl.c (grokdeclarator): Deal with the declaration of function
        parameter packs.
        (grokparms): Verify that the (optional) function parameter pack is
        at the end of the parameter list.
        (xref_basetypes): Handle pack expansions in the base class.
        (cp_tree_node_structure): Handle ARGUMENT_PACK_SELECT.
        * cp-tree.def (TYPE_ARGUMENT_PACK): New.
        (NONTYPE_ARGUMENT_PACK): New.
        (TYPE_PACK_EXPANSION): New.
        (EXPR_PACK_EXPANSION): New.
        (ARGUMENT_PACK_SELECT): New.
        * cp-objcp-common.c (cp_tree_size): Compute size of
        (NON)TYPE_ARGUMENT_PACK, (TYPE|EXPR)_PACK_EXPANSION, and
        ARGUMENT_PACK_SELECT.
        * error.c (dump_template_argument): Print template argument packs.
        (dump_template_argument_list): Ditto.
        (dump_template_parameter): Dump `...' for template type parameter
        packs.
        (dump_type): Dump TYPE_PACK_EXPANSION nodes.
        (dump_parameters): Print function parameter packs.
        (dump_template_parms): Print template argument packs.
        (dump_expr): Dump EXPR_PACK_EXPANSION nodes.
        (maybe_warn_variadic_templates): New.
        * operators.def: Add ellipsis operator for EXPR_PACK_EXPANSION.
        * tree.c (cp_walk_subtrees): Walk BASELINK, TYPE_ARGUMENT_PACK,
        NONTYPE_ARGUMENT_PACK, TYPE_PACK_EXPANSION, EXPR_PACK_EXPANSION,
        CAST_EXPR. 
        * mangle.c (write_type): Mangle TYPE_PACK_EXPANSION.
        (write_template_arg): Write argument packs as separate arguments.
        * cp-tree.h (struct template_parm_index_s): Add flag that
        indicates that the template parameter is actually a parameter
        pack.
        (struct tree_argument_pack_select): New.
        (enum cp_tree_node_structure_enum): Add TS_CP_ARGUMENT_PACK_SELECT.
        (union lang_tree_node): Add argument_pack_select.
        (FUNCTION_PARAMETER_PACK_P): New.
        (PACK_EXPANSION_P): New.
        (PACK_EXPANSION_PATTERN): New.
        (SET_PACK_EXPANSION_PATTERN): New.
        (PACK_EXPANSION_PARAMETER_PACKS): New.
        (ARGUMENT_PACK_P): New.
        (ARGUMENT_PACK_ARGS): New.
        (SET_ARGUMENT_PACK_ARGS): New.
        (ARGUMENT_PACK_INCOMPLETE_P): New.
        (ARGUMENT_PACK_EXPLICIT_ARGS): New.
        (TEMPLATE_PARM_PARAMETER_PACK): New.
        (TEMPLATE_TYPE_PARAMETER_PACK): New.
        (ARGUMENT_PACK_SELECT_FROM_PACK): New.
        (ARGUMENT_PACK_SELECT_INDEX): New.
        (ARGUMENT_PACK_SELECT_ARG): New.
        (struct cp_declarator): Add parameter_pack_p flag.
        (maybe_warn_variadic_templates): Declare.
        (process_template_parm): Add bool parameter IS_PARAMETER_PACK, to
        indicate a template parameter pack. 
        (uses_parameter_packs): Declare.
        (template_parameter_pack_p): Declare.
        (template_parms_variadic_p): Declare.
        (make_pack_expansion): Declare.
        (check_for_bare_parameter_packs): Declare.
        * cxx-pretty-print.c (pp_cxx_unary_expression): Print
        sizeof... expressions. 
        (pp_cxx_expression): Print pack expansions and non-type argument
        packs.
        (pp_cxx_exception_specification): Print pack expansions. 
        (pp_cxx_direct_declarator): Print ellipsis for parameter packs.
        (pp_cxx_ctor_initializer): Print pack expansions.
        (pp_cxx_type_id): Print pack expansions.
        (pp_cxx_template_argument_list): Print argument packs.
        (pp_cxx_template_parameter): Print ellipsis for template parameter
        packs.
        * pt.c (comp_template_parms): Compare template parameter packs.
        (template_parameter_pack_p): New.
        (template_parms_variadic_p): New.
        (template_args_variadic_p): New.
        (make_ith_pack_parameter_name): New.
        (struct find_parameter_pack_data): New.
        (find_parameter_packs_r): New.
        (uses_parameter_packs): New.
        (make_pack_expansion): New.
        (check_for_bare_parameter_packs): New.
        (expand_template_argument_pack): New.
        (reduce_template_parm_level): Propagate parameter pack flag.
        (process_template_parm): Add is_parameter_pack parameter to state
        when the parameter is actually a parameter pack. Create template
        parameter packs when is_parameter_pack is true.
        (current_template_args): The argument for a template parameter
        pack is an argument pack containing a single pack expansion.
        (process_partial_specialization): When checking that non-type
        argument expressions do not involve template parameters, loop over
        the arguments in argument packs separately.
        (push_template_decl_real): Check that the type of the declaration
        does not have any bare parameter packs. Check that primary
        templates have no more than one parameter pack, and that it comes
        at the end of the template parameter list.
        (convert_template_argument): Handle coercions for pack expansion
        expressions by coercing the pattern then rebuilding the expansion.
        (coerce_template_parms): When coercing the arguments for a
        variadic template, pack "extra" arguments into an argument pack.
        (coerce_template_template_parms): Cannot coerce between parameter
        packs and non-pack parameters.
        (template_args_equal): Compare PACK_EXPANSION_P expressions.
        (comp_template_args): Expand all template arguments packs before
        comparing template argument lists.
        (mangle_class_name_for_template): Make argument packs as separate
        template arguments.
        (for_each_template_parm_r): No need to handle BASELINK. 
        (instantiate_class_template): Handle pack expansions in the base
        class list.
        (tsubst_pack_expansion): New.
        (tsubst_template_args): Handle substitutions of argument packs and
        pack expansion into template argument lists.
        (tsubst_decl): Expand function parameter packs into separate
        function parameters.
        (tsubst_arg_types): Expand a type pack expansion into separate
        argument types.
        (tsubst_exception_specification): Handle pack expansions in
        exception specifiers.
        (tsubst): See through ARGUMENT_PACK_SELECT arguments when 
        replacing a template parameter with its argument. If we encounter
        a substitution for an argument pack, just return the parameter
        itself. 
        (tsubst_copy): sizeof(X...) returns the number of elements in
        parameter pack X.  See through ARGUMENT_PACK_SELECT when the
        PARM_DECL is a parameter pack.
        (tsubst_expr): Expression pack expansions and argument packs
        cannot show up here; they will all be handled through function
        calls, sizeof, and template argument lists.
        (tsubst_copy_and_build): sizeof(X...) returns the number of
        elements in parameter pack X.  Handle pack expansions in TREE_LIST
        and CONSTRUCTOR nodes.
        (fn_type_unification): Handle "incomplete" explicit template
        argument lists that specify some of the arguments for a template
        parameter pack.
        (type_unification_real): Unify arguments against pack expansions.
        (template_parm_level_and_index): New, helper function.
        (unify_pack_expansion): New.
        (unify): Unify argument packs on an argument-by-argument basis,
        handling variadic argument packs as well.
        (more_specialized_fn): Handle unification of function parameter
        packs. All things being equal, prefer non-variadic function
        templates to variadic function templates.
        (more_specialized_class): Prefer the variadic class template
        partial specialization that binds fewer arguments to a parameter
        pack.
        (regenerate_decl_from_template): Expand function parameter packs
        into separate parameters.
        (instantiate_decl): Ditto.
        (tsubst_initializer_list): Handle pack expansions for base-class
        initializers.
        (dependent_type_p_r): Determine dependent types in argument packs
        and pack expansions.
        (value_dependent_expression_p): Determine value-dependence of
        non-type argument packs.
        (dependent_template_arg_p): Handle argument packs.
        * semantics.c (finish_cond): Check for bare parameter packs.
        (finish_expr_stmt): Ditto.
        (finish_for_expr): Ditto.
        (finish_switch_cond): Ditto.
        (finish_mem_initializers): Ditto.
        * name-lookup.c (arg_assoc_type): Handle pack expansions and
        argument packs.
        * decl2.c (cp_build_parm_decl): Mark function parameter packs.
        * parser.c (make_declarator): Declarator is not an expansion.
        (make_pointer_declarator): Transfer parameter pack flag to outer
        declarator.
        (make_reference_declarator): Ditto.
        (make_ptrmem_declarator): Ditto.
        (make_call_declarator): Ditto.
        (make_array_declarator): Ditto.
        (cp_parser_postfix_expression): Allow pack expansion expressions
        in the argument list for a call expression.
        (cp_parser_parenthesized_expression_list): Add new parameter
        ALLOW_EXPANSION_P. When true, parse the ellipsis to mean "expand
        into separate arguments."
        (cp_parser_new_placement): Allow pack expansion expressions.
        (cp_parser_new_initializer): Ditto.
        (cp_parser_mem_initializer_list): Allow ellipsis to create a
        base-class initializer expansion.
        (cp_parser_mem_initializer): Ditto.
        (cp_parser_template_parameter_list): Keep track of whether the
        template parameter is a template parameter pack.
        (cp_parser_template_parameter): Parse the ellipsis to indicate a
        template parameter pack.
        (cp_parser_type_parameter): Ditto.
        (cp_parser_template_argument_list): Parse the ellipsis to indicate
        a pack expansion.
        (cp_parser_direct_declarator): Parse the ellipsis to indicate that
        this declarator is a parameter pack.
        (cp_parser_parameter_declaration): The ellipsis does not end the
        parameter declaration, because it might be a parameter pack. Parse
        the ellipsis to indicate a parameter pack.
        (cp_parser_initializer): Allow pack expansions.
        (cp_parser_initializer_list): Allow ellipsis to create an
        initializer expansion.
        (cp_parser_base_clause): Allow ellipsis to create a base specifier
        expansion.
        (cp_parser_type_id_list): Allow ellipsis to create an exception
        specifier expansion.
        (cp_parser_attribute_list): Don't allow pack expansions.
        (cp_parser_functional_cast): Allow pack expansions.
        (cp_parser_sizeof_operand): Allow ellipsis following "sizeof" to
        compute the length of a parameter pack.
        (cp_parser_next_token_ends_template_argument_p): An ellipsis can
        end a template argument.
        * tree.c (cp_walk_subtrees): Walk BASELINK, TYPE_ARGUMENT_PACK,
        NONTYPE_ARGUMENT_PACK, TYPE_PACK_EXPANSION, EXPR_PACK_EXPANSION,
        CAST_EXPR. 

2007-03-09  Dirk Mueller  <dmueller@suse.de>

        * cp/call.c (build_new_op): Call warn_logical_operator.

2007-03-08  Volker Reichelt  <reichelt@netcologne.de>

        PR c++/30852
        * semantics.c (finish_offsetof): Handle COMPOUND_EXPR.

        PR c++/30534
        * pt.c (any_template_arguments_need_structural_equality_p):
        Robustify.

2007-03-08  Alexandre Oliva  <aoliva@redhat.com>

        * decl.c (grokdeclarator): Disable warnings for anonymous
        bitfields.

2007-03-05  Volker Reichelt  <reichelt@netcologne.de>

        * typeck2.c (readonly_error): Always emit a hard error.
        Remove last argument.
        * cp-tree.h (readonly_error): Adjust prototype.
        * semantics.c (finish_asm_stmt): Adjust call to readonly_error.
        * typeck.c (build_unary_op): Likewise.
        (build_modify_expr): Likewise.

2007-03-04  Simon Martin  <simartin@users.sourceforge.net>

        PR c++/30895
        * tree.c (cp_tree_equal): Properly handle COMPLEX_CST trees.

2007-03-03  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/15787
        * parser.c (struct cp_parser): New IN_IF_STMT.
        (cp_parser_statement_seq_opt): Handle an unexpected 'else',
        returning if parsing the body of an 'if' statement or issuing an
        error and continuing.
        (cp_parser_selection_statement): Set IN_IF_STMT bit when parsing
        body of 'if'.
        (cp_parser_jump_statement): Mask new IN_IF_STMT bit.
        
2007-03-02  Simon Martin  <simartin@users.sourceforge.net>

        PR c++/28253
        * class.c (update_vtable_entry_for_fn): Properly handle invalid overriders
        for thunks.

2007-03-02  Geoffrey Keating  <geoffk@apple.com>

        * g++spec.c (lang_specific_driver): Add -lstdc++ when compiling
        Objective-C++.  Don't exit early if -shared-libgcc needs to be
        added.

2007-03-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * typeck.c (common_base_type): Delete unused function.
        
2007-03-01  Brooks Moses  <brooks.moses@codesourcery.com>

        * Make-lang.in: Add dummy lang.install-pdf target.

2007-03-01  Simon Baldwin <simonb@google.com>

        PR c++/23689
        * decl.c (check_tag_decl): Added new warning for typedef ignored
        when it precedes an otherwise valid non-typedef declaration.

2007-02-28  Sandra Loosemore  <sandra@codesourcery.com>

        * typeck.c (build_function_call): Store converted arguments
        in a stack-allocated array instead of building a list.
        (convert_arguments): Store arguments in the array passed in as an
        argument, and return the actual number of arguments.
        * call.c (build_call): Delete, and replace with...
        (build_call_n, build_call_a): New.
        (build_op_delete_call): Rewrite to avoid constructing argument lists.
        (build_over_call): Store converted arguments in a stack-allocated
        array instead of building a list.
        (build_cxx_call): Pass arguments in an array instead of as a list.
        (build_java_interface_fn_ref): Rewrite to avoid constructing
        argument lists.
        * tree.h: Update declarations to reflect above changes.
        * method.c (use_thunk): Use a stack-allocated array to hold
        the arguments instead of a list.
        * rtti.c (throw_bad_cast): Update call to cxx_call.
        (throw_bad_typeid): Likewise.
        (build_dynamic_cast_1): Likewise.
        * init.c (build_builtin_delete_call): Use build_call_n.
        * decl.c (expand_static_init): Likewise.
        * except.c (cp_protect_cleanup_actions): Likewise.
        * cp-gimplify.c (genericize_eh_spec_block): Likewise.
        (gimplify_must_not_throw_expr): Likewise.
        (cxx_omp_apply_fn): Use build_call_a.

2007-02-26  Mark Mitchell  <mark@codesourcery.com>

        * semantics.c (expand_or_defer_fn): Call c_record_cdtor_fn.
        * decl2.c (cp_write_gloabl_declarations): Call c_build_cdtor_fns.

2007-02-25  Mark Mitchell  <mark@codesourcery.com>

        * cp-tree.h (static_ctors): Remove.
        * cp-tree.h (static_dtors): Likewise.
        * cp-objcp-common.c (decl_shadowed_for_var_lookup): Adjust for
        refactoring of tree_map hierarchy.
        (decl_shadowed_for_var_insert): Likewise.
        * semantics.c (expand_body): Use c_expand_body.
        (expand_or_defer_fn): Don't update static_ctors or static_dtors.
        * decl2.c (static_ctors): Remove.
        (static_dtors): Likewise.
        (generate_ctor_or_dtor_function): Pass NULL_TREE to
        objc_generate_static_init_call.  Do not call static_[cd]tors.
        (generate_ctor_and_dtor_functions_for_priority): Do not check for
        static_[cd]tors.
        (cp_write_global_declarations): Likewise.

2007-02-23  Richard Guenther  <rguenther@suse.de>

        * class.c (note_name_declared_in_class): Make declaration
        changes meaning a pedwarn.

2007-02-22  Michael Matz  <matz@suse.de>

        PR c++/29433
        * cp-tree.h (TFF_UNQUALIFIED_NAME): New formatting flag.
        * error.c (dump_aggr_type, dump_simple_decl, dump_decl,
        dump_function_decl): Guard emitting outer scopes by new flag.
        * cp-lang.c (cxx_dwarf_name): New function.
        (LANG_HOOKS_DWARF_NAME): Define to cxx_dwarf_name.
        * pt.c (classtype_mangled_name, mangle_class_name_for_template):
        Remove functions.
        (push_template_decl_real, lookup_template_class): Remove calls
        to above functions.

2007-02-19  Mark Mitchell  <mark@codesourcery.com>

        * call.c (build_new_method_call): Ensure that explicit calls of
        destructors have type "void".

2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * typeck.c (build_binary_op): Replace -Wstring-literal-comparison
        and -Walways-true with -Waddress.
        * cvt.c (convert_to_void): Replace unconditional warning with
        -Waddress.

2007-02-18  Kazu Hirata  <kazu@codesourcery.com>

        * decl.c, tree.c: Fix comment typos.

2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR C++/30158
        * semantics.c (finish_stmt_expr_expr): Set TREE_TYPE of the 
        statement expression if we had an error mark node.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * cp-tree.def (AGGR_INIT_EXPR): Adjust documentation.
        Change class to tcc_vl_exp.

        * call.c (build_call): Use build_call_list instead 
        of build3. 
        (build_over_call): Likewise.
        (build_new_method_call): Use build_min_non_dep_call_list 
        instead of build_min_non_dep.

        * error.c (dump_call_expr_args): New function.
        (dump_aggr_init_expr_args): New function.
        (dump_expr) <AGGR_INIT_EXPR, CALL_EXPR, INDIRECT_REF>: Use them. 
        Update to use new CALL_EXPR and AGGR_INIT_EXPR accessor macros.

        * cvt.c (convert_to_void): Use build_call_array instead
        of build3; use new AGGR_INIT_EXPR accessor macros.

        * mangle.c (write_expression): Use TREE_OPERAND_LENGTH
        instead of TREE_CODE_LENGTH.

        * dump.c (cp_dump_tree) <AGGR_INIT_EXPR>: Update to use new
        AGGR_INIT_EXPR accessor macros.

        * cp-gimplify.c (cp_gimplify_init_expr): Use 
        AGGR_INIT_EXPR_SLOT to set the slot operand.

        * cp-tree.h (AGGR_INIT_EXPR_FN): New macro.
        (AGGR_INIT_EXPR_SLOT): New macro.
        (AGGR_INIT_EXPR_ARG): New macro.
        (aggr_init_expr_nargs): New macro.
        (AGGR_INIT_EXPR_ARGP): New macro.
        (aggr_init_expr_arg_iterator): New.
        (init_aggr_init_expr_arg_iterator): New.
        (next_aggr_init_expr_arg): New.
        (first_aggr_init_expr_arg): New.
        (more_aggr_init_expr_args_p): New.
        (FOR_EACH_AGGR_INIT_EXPR_ARG): New.
        (stabilize_aggr_init): New declaration.
        (build_min_non_dep_call_list): Likewise.

        * tree.c (process_aggr_init_operands): New function.
        (build_aggr_init_array) New function.
        (build_cplus_new): Update to use new CALL_EXPR and
        AGGR_INIT_EXPR accessor macros. Replace use of build3 with
        build_aggr_init_array.
        (build_min_non_dep_call_list) New function.
        (build_min_nt): Assert input code parameter is not a variable
        length expression class.
        (build_min, build_min_non_dep): Likewise.
        (cp_tree_equal) <CALL_EXPR>: Iterate through the arguments
        to check for equality instead of recursing. Handle tcc_vl_exp
        tree code classes.
        (stabilize_call): Update to only handle CALL_EXPRs, not 
        AGGR_INIT_EXPRs; use new CALL_EXPR accessor macros.
        (stabilize_aggr_init): New function.
        (stabilize_init): Use it.

        * cxx-pretty-print.c (pp_cxx_postfix_expression)
        <AGGR_INIT_EXPR, CALL_EXPR>: Update to use new CALL_EXPR and
        AGGR_INIT_EXPR accessor macros and argument iterators.
        
        * pt.c (tsubst_copy) <CALL_EXPR>: Replace build_nt with
        build_vl_exp. Iterate through the operands, recursively 
        processing each one.
        (tsubst_copy_and_build) <CALL_EXPR>: Update to use new
        CALL_EXPR accessor macros.
        (value_dependent_expression_p) <default>: Handle tcc_vl_exp
        tree code classes. Use TREE_OPERAND_LENGTH instead of 
        TREE_CODE_LENGTH.

        * semantics.c (finish_call_expr): Use build_nt_call_list
        instead of build_nt.
        (simplify_aggr_init_expr): Update to use new AGGR_INIT_EXPR 
        accessor macros. Use build_call_array to construct the 
        CALL_EXPR node instead of build3
        
        * decl2.c (build_offset_ref_call_from_tree): Use 
        build_nt_call_list and build_min_non_dep_call_list instead
        of build_min_nt and build_min_non_dep.

        * parser.c (cp_parser_postfix_expression) <CPP_OPEN_PAREN>:
        Use build_nt_call_list instead of build_min_nt.

2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/28943
        * call.c (build_conditional_expr): Improve error message.
        
2007-02-13  Dirk Mueller  <dmueller@suse.de>

        * friend.c (do_friend): Annotate warning about friend
        declarations in templates with OPT_Wnon_template_friend.
        Convert informal message from warning() to inform().

2007-02-12  Simon Martin  <simartin@users.sourceforge.net>
            Mark Mitchell  <mark@codesourcery.com>

        PR c++/14622
        * pt.c (do_decl_instantiation): Detect type mismatches in explicit
        instantiations for variables.

2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/7651
        * cp-gimplify.c (gimplify_expr_stmt): Don't check extra_warnings.
        Check warn_unused_value just once.

2007-02-11  Mark Mitchell  <mark@codesourcery.com>

        PR c++/26988
        * pt.c (determine_specialization): Use skip_artificial_parms_for.
        (fn_type_unificiation): Likewise.
        (get_bindings): Likewise.

o2007-02-06  Mark Mitchell  <mark@codesourcery.com>

        PR target/29487
        * decl.c (finish_function): Use DECL_REPLACEABLE.
        * tree.c (cp_cannot_inline_tree_fn): Likewise.

2007-02-10  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * parser.c (cp_parser_primary_expression): Reformat overly long lines.

2007-02-10  Richard Henderson  <rth@redhat.com>, Jakub Jelinek  <jakub@redhat.com>

        * decl.c (grokvardecl): Don't error if !have_tls.
        (grokdeclarator): Likewise.
        * parser.c (cp_parser_omp_threadprivate): Likewise.

2007-02-07  Jakub Jelinek  <jakub@redhat.com>

        PR c++/30703
        * cp-gimplify.c (cp_genericize_r): Don't dereference invisiref
        parameters and result decls in omp clauses.
        (cxx_omp_privatize_by_reference): Pass also invisiref PARM_DECLs
        by reference.

2007-02-05  Dirk Mueller  <dmueller@suse.de>

        PR bootstrap/30510
        * parser.c (cp_parser_class_specifier): Always initialize bases.

2007-02-05  Paolo Bonzini  <bonzini@gnu.org>

        * cp-tree.h (OMP_ATOMIC_CODE): Delete.
        (OMP_ATOMIC_DEPENDENT_P): Rewrite.
        * pt.c (tsubst_expr): Adjust for new format of dependent OMP_ATOMIC
        expressions.
        * semantics.c (finish_omp_atomic): Store a whole expression node
        in operand 1, and integer_zero_node in operand 0, for dependent
        OMP_ATOMIC.  Rewrite to make flow easier to understand.

2007-02-03  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * decl.c (grokdeclarator): Use OPT_Wreturn_type instead of 0.

2007-02-04  Kazu Hirata  <kazu@codesourcery.com>

        * class.c, cp-tree.h, decl.c, decl2.c, g++spec.c, init.c,
        parser.c, pt.c, tree.c, typeck.c: Follow spelling conventions.

2007-02-03  Douglas Gregor  <doug.gregor@gmail.com>

       * parser.c (cp_lexer_get_preprocessor_token): Attach the C++0x
       keyword warning to -Wc++0x-compat.
        
2007-02-03  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * decl.c (grokdeclarator): Update documentation.

2007-02-02  Jakub Jelinek  <jakub@redhat.com>

        PR c++/30536
        * decl.c (grokdeclarator): If __thread is used together with
        a storage class other than extern and static, clear thread_p
        after issuing diagnostics and fall through to checking the
        storage class.

2007-01-30  Roger Sayle  <roger@eyesopen.com>

        * error.c (dump_type_suffix): Avoid use of cp_build_binary_op when
        calculating the size of an array (to avoid recursive errors).

2007-01-30  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/24745
        * typeck.c (build_binary_op): Fix logic for warning. Move warning
        to -Wpointer-arith.
        * call.c (convert_like_real): Don't warn when converting to
        boolean type.
        
2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * decl.c (pop_label): Replace warning with call to
        warn_for_unused_label.

2007-01-28  Andrew Pinski  <pinskia@gmail.com>

        PR C++/28988
        * semantics.c (finish_pseudo_destructor_expr): Check the
        destrutor name by calling check_dtor_name.

2007-01-24  Douglas Gregor  <dgregor@osl.iu.edu>

        * lex.c (D_CPP0X): Rename.
        (D_CXX0X): To this.
        (reswords): D_CPP0X -> D_CXX0X.
        (init_reswords): Ditto.
        * parser.c (cp_lexer_get_preprocessor_token): Warn about the use
        of C++0x keywords as identifiers.

2007-01-23  Simon Martin  <simartin@users.sourceforge.net>

        PR c++/27492
        * decl.c (duplicate_decls): Don't reset DECL_INVALID_OVERRIDER_P for
        function decls.

2007-01-23  Ian Lance Taylor  <iant@google.com>

        * typeck.c (convert_for_assignment): Only warn about a = b = c
        when converting to bool.

2007-01-23  Roger Sayle  <roger@eyesopen.com>

        * call.c (null_ptr_cst_p): Replace use of TREE_CONSTANT_OVERFLOW with
        TREE_OVERFLOW.
        * typeck.c (ignore_overflows): Remove the remaining uses of
        TREE_CONSTANT_OVERFLOW.

2007-01-20  Jan Hubicka  <jh@suse.cz>

        * decl2.c (start_objects, start_static_storage_duration_function):
        Do not make the functions uninlinable.

2007-01-17  Ian Lance Taylor  <iant@google.com>

        * class.c (add_method): Call VEC_reserve_exact rather than passing
        a negative size to VEC_reserve.

2007-01-11  Simon Martin  <simartin@users.sourceforge.net>

        PR c++/29573
        * tree.c (cp_tree_equal): Properly handle MODOP_EXPR trees.

2007-01-10  Mark Mitchell  <mark@codesourcery.com>

        PR c++/28999
        * decl.c (make_typename_type): If the qualified name is not a
        type, issue an error.
        * parser.c (cp_parser_elaborated_type_specifier): Fix comment
        formatting.

2007-01-08  Geoffrey Keating  <geoffk@apple.com>

        * rtti.c: Include target.h.
        (emit_support_tinfos): If ! targetm.cxx.library_rtti_comdat (),
        don't emit typeinfo for fundamental types as weak.
        * Make-lang.in (cp/rtti.o): Update and correct dependencies.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * cvt.c (cp_convert_to_pointer): Use build_int_cst_type.

2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>

        * call.c (standard_conversion): Pass flag to
        vector_types_convertible_p to disallow emission of note.
        * typeck.c (convert_for_assignment): Pass flag to
        vector_types_convertible_p to allow emission of note.
        (ptr_reasonably_similar): Pass flag to vector_types_convertible_p
        to disallow emission of note.

2007-01-07  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/28986
        * typeck.c (build_binary_op): Call overflow_warning if
        TREE_OVERFLOW_P is true for the result and not for any of the
        operands.
        
2007-01-06  Lee Millward  <lee.millward@codesourcery.com>

       PR c++/19439
       * class.c (add_method): Don't wait until template
       instantiation time to complain about duplicate methods.
        
2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/19978
        * semantics.c (finish_unary_op_expr): Warn only if result
        overflowed and operands did not.

2007-01-05  Ian Lance Taylor  <iant@google.com>

        * typeck.c (build_binary_op): Warn about comparing a non-weak
        address to NULL.

2007-01-05  Douglas Gregor  <doug.gregor@gmail.com>

        * pt.c (tsubst): Propagate the need for structural equality checks
        when reducing the level of template parameters.

2007-01-03  Kazu Hirata  <kazu@codesourcery.com>

        * pt.c: Fix a comment typo.

2007-01-02  Ian Lance Taylor  <iant@google.com>

        * semantics.c (maybe_convert_cond): Optionally warn when using an
        assignment as a condition.
        * typeck.c (convert_for_assignment): Optionally warn about
        assigning the result of an assignment to a bool.

2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>

        * pt.c (canonical_template_parms): Correct typo in comment.
        
2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>

        * typeck.c (structural_comptypes): Renamed from "comptypes".
        (comptypes): Use canonical type information to perform fast type
        comparison. When VERIFY_CANONICAL_TYPES, verify that the
        canonical type comparison returns the same results as we would see
        from the current, structural check. Support COMPARE_STRUCTURAL
        when we need structural checks.
        * decl.c (typename_compare): Fix comment.
        (build_typename_type): TYPENAME_TYPE nodes require structural
        equality checks, because they resolve different based on the
        current class type.
        (make_unbound_class_template): UNBOUND_CLASS_TEMPLATE nodes
        require structural equality checks (for now).
        (build_ptrmemfunc_type): Build the canonical pointer to member
        function type.
        (compute_array_index_type): Whenever we build a new index type
        to represent the size of an array in a template, we need to mark
        this index type as requiring structural equality. This goes for
        arrays with value-dependent sizes with the current ABI, or all
        arrays with ABI-1.
        * tree.c (cplus_array_hash): New.
        (struct cplus_array_info): New.
        (cplus_array_compare): New.
        (cplus_array_htab): New.
        (build_cplus_array_type_1): Use a hash table to cache the array
        types we build. Build the canonical array type for each array
        type.
        (cp_build_qualified_type_real): When building a cv-qualified array
        type, use the hash table of array types and build canonical array
        types as necessary.
        (bind_template_template_parm): BOUND_TEMPLATE_TEMPLATE_PARM nodes
        use structural equality (for now).
        * cp-tree.h (COMPARE_STRUCTURAL): New.
        * pt.c (canonical_template_parms): New.
        (canonical_type_parameter): New.
        (process_template_parm): Find the canonical type parameter.
        (lookup_template_class): When we have named the primary template
        type, set the canonical type for our template class to the primary
        template type. If any of the template arguments need structural
        equality checks, the template class needs structural equality
        checks.
        (tsubst): When reducing the level of a template template
        parameter, we require structural equality tests for the resulting
        parameter because its template parameters have not had their types
        canonicalized. When reducing a template type parameter, find the
        canonical reduced type parameter.
        (any_template_arguments_need_structural_equality_p): New.