re PR fortran/41918 (Superflous warning "was declared INTENT(OUT) but was not set")

[gcc.git] / gcc / fortran / ChangeLog

2009-11-05  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/41918
        * fortran/trans-decl.c: Silence intent(out) warning for derived type
        dummy arguments with default initialization.

2009-11-05  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41556
        * interface.c (matching_typebound_op,gfc_extend_assign): Handle CLASS
        variables.

2009-11-05  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41556
        PR fortran/41873
        * resolve.c (resolve_function,resolve_call): Prevent abstract interfaces
        from being called, but allow deferred type-bound procedures with
        abstract interface.

2009-11-04  Tobias Burnus <burnus@gcc.gnu.org>
            Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41556
        PR fortran/41937
        * interface.c (gfc_check_operator_interface): Handle CLASS arguments.
        * resolve.c (resolve_allocate_expr): Handle allocatable components of
        CLASS variables.

2009-11-04  Richard Guenther  <rguenther@suse.de>

        * options.c (gfc_post_options): Rely on common code processing
        LTO options.  Only enable -fwhole-file here.

2009-11-03  Tobias Burnus  <burnus@net-b.de>

        PR fortran/41907
        * trans-expr.c (gfc_conv_procedure_call): Fix presence check
        for optional arguments.

2009-11-01  Tobias Burnus  <burnus@net-b.de>

        PR fortran/41872
        * trans-decl.c (gfc_trans_deferred_vars): Do not nullify
        autodeallocated allocatable scalars at the end of scope.
        (gfc_generate_function_code): Fix indention.
        * trans-expr.c (gfc_conv_procedure_call): For allocatable
        scalars, fix calling by reference and autodeallocating
        of intent out variables.

2009-11-01  Tobias Burnus  <burnus@net-b.de>

        PR fortran/41850
        * trans-expr.c (gfc_conv_procedure_call): Deallocate intent-out
        variables only when present. Remove unneccessary present check.

2009-10-29  Tobias Burnus  <burnus@net-b.de>

        PR fortran/41777
        * trans-expr.c (gfc_conv_procedure_call,gfc_conv_expr_reference):
        Use for generic EXPR_FUNCTION the attributes of the specific
        function.

2009-10-29  Janne Blomqvist  <jb@gcc.gnu.org>

        PR fortran/41860
        * resolve.c (apply_default_init_local): Treat -fno-automatic as if
        var was saved.

2009-10-28  Rafael Avila de Espindola  <espindola@google.com>

        * trans-common.c (create_common): Set TREE_PUBLIC to false on
        fake variables.

2009-10-26  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41714
        * trans.c (gfc_trans_code): Remove call to
        'tree_annotate_all_with_location'. Location should already be set.
        * trans-openmp.c (gfc_trans_omp_workshare): Ditto.
        * trans-stmt.c (gfc_trans_allocate): Do correct data initialization for
        CLASS variables with SOURCE tag, plus some cleanup.

2009-10-24  Janus Weil  <janus@gcc.gnu.org>
            Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/41784
        * module.c (load_derived_extensions): Skip symbols which are not being
        loaded.

2009-10-24  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/41772
        * trans-intrinsic.c (gfc_conv_intrinsic_transfer): Stop'extent'
        from going negative.

2009-10-23  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41800
        * trans-expr.c (gfc_trans_scalar_assign): Handle CLASS variables.

2009-10-23  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41758
        * match.c (conformable_arrays): Move to resolve.c.
        (gfc_match_allocate): Don't resolve SOURCE expr yet, and move some
        checks to resolve_allocate_expr.
        * resolve.c (conformable_arrays): Moved here from match.c.
        (resolve_allocate_expr): Moved some checks here from gfc_match_allocate.
        (resolve_code): Resolve SOURCE tag for ALLOCATE expressions.

2009-10-22  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41781
        * resolve.c (resolve_codes): Don't clear 'cs_base' for BLOCK constructs,
        to make sure labels are treated correctly.
        * symbol.c (gfc_get_st_label): Create labels in the right namespace.
        For BLOCK constructs go into the parent namespace.

2009-10-21  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41706
        PR fortran/41766
        * match.c (select_type_set_tmp): Set flavor for temporary.
        * resolve.c (resolve_class_typebound_call): Correctly resolve actual
        arguments.

2009-10-20  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/41706
        * resolve.c (resolve_arg_exprs): New function.
        (resolve_class_compcall): Call the above.
        (resolve_class_typebound_call): The same.

2009-10-19  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41586
        * parse.c (parse_derived): Correctly set 'alloc_comp' and 'pointer_comp'
        for CLASS variables.
        * trans-array.c (structure_alloc_comps): Handle deallocation and
        nullification of allocatable scalar components.
        * trans-decl.c (gfc_get_symbol_decl): Remember allocatable scalars for
        automatic deallocation.
        (gfc_trans_deferred_vars): Automatically deallocate allocatable scalars.

2009-10-19  Tobias Burnus  <burnus@net-b.de>
            Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/41755
        * symbol.c (gfc_undo_symbols): Add NULL check.
        * match.c (gfc_match_equivalence): Add check for
        missing comma.

2009-10-19  Richard Guenther  <rguenther@suse.de>

        PR fortran/41494
        * trans-expr.c (gfc_trans_scalar_assign): Do not call
        gfc_evaluate_now.

2009-10-17  Janus Weil  <janus@gcc.gnu.org>
            Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/41608
        * decl.c (gfc_match_data_decl): Add BT_CLASS for undefined type
        and empty type errors.
        * parse.c (gfc_build_block_ns): Only set recursive if parent ns
        has a proc_name.

        PR fortran/41629
        PR fortran/41618
        PR fortran/41587
        * gfortran.h : Add class_ok bitfield to symbol_attr.
        * decl.c (build_sym): Set attr.class_ok if dummy, pointer or
        allocatable.
        (build_struct): Use gfc_try 't' to carry errors past the call
        to encapsulate_class_symbol.
        (attr_decl1): For a CLASS object, apply the new attribute to
        the data component.
        * match.c (gfc_match_select_type): Set attr.class_ok for an
        assigned selector.
        * resolve.c (resolve_fl_variable_derived): Check a CLASS object
        is dummy, pointer or allocatable by testing the class_ok and
        the use_assoc attribute.

2009-10-16  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41719
        * resolve.c (resolve_ordinary_assign): Reject intrinsic assignments
        to polymorphic variables.

2009-10-16  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/41648
        PR fortran/41656
        * trans-expr.c (select_class_proc): Convert the expression for the
        vindex, carried on the first member of the esym list.
        * gfortran.h : Add the vindex field to the esym_list structure.
        and eliminate the class_object field.
        * resolve.c (check_class_members): Remove the setting of the
        class_object field.
        (vindex_expr): New function.
        (get_class_from_expr): New function.
        (resolve_class_compcall): Call the above to find the ultimate
        class or derived component.  If derived, do not generate the
        esym list.  Add and expression for the vindex to the esym list
        by calling the above.
        (resolve_class_typebound_call): The same.

2009-10-15  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/41712
        * intrinsic.texi: Explicitly state that ETIME and DTIME take
        REAL(4) arguments.  Fix nearby typographically errors where 
        /leq was used instead of \leq.

2009-10-13  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41581
        * decl.c (encapsulate_class_symbol): Add new component '$size'.
        * resolve.c (resolve_allocate_expr): Move CLASS handling to
        gfc_trans_allocate.
        (resolve_class_assign): Replaced by gfc_trans_class_assign.
        (resolve_code): Remove calls to resolve_class_assign.
        * trans.c (gfc_trans_code): Use new function gfc_trans_class_assign.
        * trans-expr.c (get_proc_ptr_comp): Fix a memory leak.
        (gfc_conv_procedure_call): For CLASS dummies, set the
        $size component.
        (gfc_trans_class_assign): New function, replacing resolve_class_assign.
        * trans-stmt.h (gfc_trans_class_assign): New prototype.
        * trans-stmt.c (gfc_trans_allocate): Use correct size when allocating
        CLASS variables. Do proper initialization. Move some code here from
        resolve_allocate_expr.

2009-10-11 Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/38439
        * io.c (check_format): Fix locus for error messages and fix a comment.

2009-10-11  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/41583
        * decl.c (hash_value): New function.
        (gfc_match_derived_decl): Call it.

2009-10-09  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41585
        * decl.c (build_struct): Bugfix for CLASS components.

2009-10-09  Tobias Burnus  <burnus@net-b.de>

        PR fortran/41582
        * decl.c (encapsulate_class_symbol): Save attr.abstract.
        * resolve.c (resolve_allocate_expr): Reject class allocate
        without typespec or source=.
        * trans-stmt.c (gfc_trans_allocate): Change gfc_warning
        into gfc_error for "not yet implemented".

2009-10-09  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41579
        * gfortran.h (gfc_select_type_stack): New struct, to be used as a stack
        for SELECT TYPE statements.
        (select_type_stack): New global variable.
        (type_selector,select_type_tmp): Removed.
        * match.c (type_selector,type_selector): Removed.
        (select_type_stack): New variable, serving as a stack for
        SELECT TYPE statements.
        (select_type_push,select_type_set_tmp): New functions.
        (gfc_match_select_type): Call select_type_push.
        (gfc_match_type_is): Call select_type_set_tmp.
        * parse.c (select_type_pop): New function.
        (parse_select_type_block): Call select_type_pop.
        * symbol.c (select_type_insert_tmp): New function.
        (gfc_find_sym_tree): Call select_type_insert_tmp.

2009-10-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * arith.c (arith_power): Use mpc_pow_z.
        * gfortran.h (HAVE_mpc_pow_z): Define.

2009-10-07  Daniel Kraft  <d@domob.eu>

        PR fortran/41615
        * resolve.c (resolve_contained_fntype): Clarify error message for
        invalid assumed-length character result on module procedures.

2009-10-07  Janus Weil  <janus@gcc.gnu.org>

        * expr.c (gfc_check_pointer_assign): Do the correct type checking when
        CLASS variables are involved.
        * match.c (gfc_match_select_type): Parse associate-name in SELECT TYPE
        statements, and set up a local namespace for the SELECT TYPE block.
        * parse.h (gfc_build_block_ns): New prototype.
        * parse.c (parse_select_type_block): Return from local namespace to its
        parent after SELECT TYPE block.
        (gfc_build_block_ns): New function for setting up the local namespace
        for a BLOCK construct.
        (parse_block_construct): Use gfc_build_block_ns.
        * resolve.c (resolve_select_type): Insert assignment for the selector
        variable, in case an associate-name is given, and put the SELECT TYPE
        statement inside a BLOCK.
        (resolve_code): Call resolve_class_assign after checking the assignment.
        * symbol.c (gfc_find_sym_tree): Moved some code here from
        gfc_get_ha_sym_tree.
        (gfc_get_ha_sym_tree): Moved some code to gfc_find_sym_tree.

2009-10-07  Paul Thomas <pault@gcc.gnu.org>

        PR fortran/41613
        * resolve.c (check_class_members): Reset compcall.assign.

2009-10-05  Paul Thomas  <pault@gcc.gnu.org>

        * trans-expr.c (select_class_proc): New function.
        (conv_function_val): Deal with class methods and call above.
        * symbol.c (gfc_type_compatible): Treat case where both ts1 and
        ts2 are BT_CLASS.
        gfortran.h : Add structure gfc_class_esym_list and include in
        the structure gfc_expr.
        * module.c (load_derived_extensions): New function.
        (read_module): Call above.
        (write_dt_extensions): New function.
        (write_derived_extensions): New function.
        (write_module): Use the above.
        * resolve.c (resolve_typebound_call): Add a function expression
        for class methods.  This carries the chain of symbols for the
        dynamic dispatch in select_class_proc.
        (resolve_compcall): Add second, boolean argument to indicate if
        a function is being handled.
        (check_members): New function.
        (check_class_members): New function.
        (resolve_class_compcall): New function.
        (resolve_class_typebound_call): New function.
        (gfc_resolve_expr): Call above for component calls.. 

2009-10-05  Daniel Kraft  <d@domob.eu>

        PR fortran/41403
        * trans-stmt.c (gfc_trans_goto): Ignore statement list on assigned goto
        if it is present.

2009-10-03  Richard Guenther  <rguenther@suse.de>

        * options.c (gfc_post_options): Handle -flto and -fwhopr.

2009-10-02  Tobias Burnus  <burnus@net-b.de>

        PR fortran/41479
        * trans-decl.c (gfc_init_default_dt): Check for presence of
        the argument only if it is optional or in entry master.
        (init_intent_out_dt): Ditto; call gfc_init_default_dt
        for all derived types with initializers.

2009-10-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR fortran/33197
        * gfortran.h (HAVE_mpc_arc): Define.
        * simplify.c (gfc_simplify_acos): Handle complex acos.
        (gfc_simplify_acosh): Likewise for acosh.
        (gfc_simplify_asin): Likewise for asin.
        (gfc_simplify_asinh): Likewise for asinh.
        (gfc_simplify_atan): Likewise for atan.
        (gfc_simplify_atanh): Likewise for atanh.

2009-10-01  Tobias Burnus  <burnus@net-b.de>

        PR fortran/41515
        * decl.c (do_parm): Call add_init_expr_to_sym.

2009-09-30  Dennis Wassel  <dennis.wassel@gmail.com>

        * gcc/fortran/trans-array.c (gfc_trans_array_bound_check): Improved
        bounds checking error messages. (gfc_conv_array_ref): Likewise.
        (gfc_conv_ss_startstride): Likewise.

2009-09-30  Janus Weil  <janus@gcc.gnu.org>

        * resolve.c (check_typebound_baseobject): Don't check for
        abstract types for CLASS.
        (resolve_class_assign): Adapt for RHS being a CLASS.
        * trans-intrinsic.c (gfc_conv_associated): Add component ref
        if expr is a CLASS.

2009-09-30  Janus Weil  <janus@gcc.gnu.org>

        * check.c (gfc_check_same_type_as): New function for checking
        SAME_TYPE_AS and EXTENDS_TYPE_OF.
        * decl.c (encapsulate_class_symbol): Set ABSTRACT attribute for class
        container, if the contained type has it. Add an initializer for the
        class container.
        (add_init_expr_to_sym): Handle BT_CLASS.
        (vindex_counter): New counter for setting vindices.
        (gfc_match_derived_decl): Set vindex for all derived types, not only
        those which are being extended.
        * expr.c (gfc_check_assign_symbol): Handle NULL initialization of class
        pointers.
        * gfortran.h (gfc_isym_id): New values GFC_ISYM_SAME_TYPE_AS and
        GFC_ISYM_EXTENDS_TYPE_OF.
        (gfc_type_is_extensible): New prototype.
        * intrinsic.h (gfc_check_same_type_as): New prototype.
        * intrinsic.c (add_functions): Add SAME_TYPE_AS and EXTENDS_TYPE_OF.
        * primary.c (gfc_expr_attr): Handle CLASS-valued functions.
        * resolve.c (resolve_structure_cons): Handle BT_CLASS.
        (type_is_extensible): Make non-static and rename to
        'gfc_type_is_extensible.
        (resolve_select_type): Renamed type_is_extensible.
        (resolve_class_assign): Handle NULL pointers.
        (resolve_fl_variable_derived): Renamed type_is_extensible.
        (resolve_fl_derived): Ditto.
        * trans-expr.c (gfc_trans_subcomponent_assign): Handle NULL
        initialization of class pointer components.
        (gfc_conv_structure): Handle BT_CLASS.
        * trans-intrinsic.c (gfc_conv_same_type_as,gfc_conv_extends_type_of):
        New functions.
        (gfc_conv_intrinsic_function): Handle SAME_TYPE_AS and EXTENDS_TYPE_OF.

2009-09-30  Janus Weil  <janus@gcc.gnu.org>

        * gfortran.h (type_selector, select_type_tmp): New global variables.
        * match.c (type_selector, select_type_tmp): New global variables,
        used for SELECT TYPE statements.
        (gfc_match_select_type): Better error handling. Remember selector.
        (gfc_match_type_is): Create temporary variable.
        * module.c (ab_attribute): New value 'AB_IS_CLASS'.
        (attr_bits): New string.
        (mio_symbol_attribute): Handle 'is_class'.
        * resolve.c (resolve_select_type): Insert pointer assignment statement,
        to assign temporary to selector.
        * symbol.c (gfc_get_ha_sym_tree): Replace selector by a temporary
        in SELECT TYPE statements.

2009-09-30  Janus Weil  <janus@gcc.gnu.org>

        * dump-parse-tree.c (show_code_node): Renamed 'alloc_list'.
        * gfortran.h (gfc_code): Rename 'alloc_list'. Add member 'ts'.
        (gfc_expr_to_initialize): New prototype.
        * match.c (alloc_opt_list): Correctly check type compatibility.
        Renamed 'alloc_list'.
        (dealloc_opt_list): Renamed 'alloc_list'.
        * resolve.c (expr_to_initialize): Rename to 'gfc_expr_to_initialize'
        and make it non-static.
        (resolve_allocate_expr): Set vindex for CLASS variables correctly.
        Move initialization code to gfc_trans_allocate. Renamed 'alloc_list'.
        (resolve_allocate_deallocate): Renamed 'alloc_list'.
        (check_class_pointer_assign): Rename to 'resolve_class_assign'. Change
        argument type. Adjust to work with ordinary assignments.
        (resolve_code): Call 'resolve_class_assign' for ordinary assignments.
        Renamed 'check_class_pointer_assign'.
        * st.c (gfc_free_statement): Renamed 'alloc_list'.
        * trans-stmt.c (gfc_trans_allocate): Renamed 'alloc_list'. Handle
        size determination and initialization of CLASS variables. Bugfix for
        ALLOCATE statements with default initialization and SOURCE block.
        (gfc_trans_deallocate): Renamed 'alloc_list'.

2009-09-30  Paul Thomas  <pault@gcc.gnu.org>

        * trans-expr.c (gfc_conv_procedure_call): Convert a derived
        type actual to a class object if the formal argument is a
        class.

2009-09-30  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40996
        * decl.c (build_struct): Handle allocatable scalar components.
        * expr.c (gfc_add_component_ref): Correctly set typespec of expression,
        after inserting component reference.
        * match.c (gfc_match_type_is,gfc_match_class_is): Make sure that no
        variables are being used uninitialized.
        * primary.c (gfc_match_varspec): Handle CLASS array components.
        * resolve.c (resolve_select_type): Transform EXEC_SELECT_TYPE to
        EXEC_SELECT.
        * trans-array.c (structure_alloc_comps,gfc_trans_deferred_array):
        Handle allocatable scalar components.
        * trans-expr.c (gfc_conv_component_ref): Ditto.
        * trans-types.c (gfc_get_derived_type): Ditto.

2009-09-30  Janus Weil  <janus@gcc.gnu.org>

        * decl.c (encapsulate_class_symbol): Modify names of class container
        components by prefixing with '$'.
        (gfc_match_end): Handle COMP_SELECT_TYPE.
        * expr.c (gfc_add_component_ref): Modify names of class container
        components by prefixing with '$'.
        * gfortran.h (gfc_statement): Add ST_SELECT_TYPE, ST_TYPE_IS and
        ST_CLASS_IS.
        (gfc_case): New field 'ts'.
        (gfc_exec_op): Add EXEC_SELECT_TYPE.
        (gfc_type_is_extension_of): New prototype.
        * match.h (gfc_match_select_type,gfc_match_type_is,gfc_match_class_is):
        New prototypes.
        * match.c (match_derived_type_spec): New function.
        (match_type_spec): Use 'match_derived_type_spec'.
        (match_case_eos): Modify error message.
        (gfc_match_select_type): New function.
        (gfc_match_case): Modify error message.
        (gfc_match_type_is): New function.
        (gfc_match_class_is): Ditto.
        * parse.h (gfc_compile_state): Add COMP_SELECT_TYPE.
        * parse.c (decode_statement): Handle SELECT TYPE, TYPE IS and CLASS IS
        statements.
        (next_statement): Handle ST_SELECT_TYPE.
        (gfc_ascii_statement): Handle ST_SELECT_TYPE, ST_TYPE_IS, ST_CLASS_IS.
        (parse_select_type_block): New function.
        (parse_executable): Handle ST_SELECT_TYPE.
        * resolve.c (resolve_deallocate_expr): Handle BT_CLASS. Modify names of
        class container components by prefixing with '$'.
        (resolve_allocate_expr): Ditto.
        (resolve_select_type): New function.
        (gfc_resolve_blocks): Handle EXEC_SELECT_TYPE.
        (check_class_pointer_assign): Modify names of class container
        components by prefixing with '$'.
        (resolve_code): Ditto.
        * st.c (gfc_free_statement): Ditto.
        * symbol.c (gfc_type_is_extension_of): New function.
        (gfc_type_compatible): Use 'gfc_type_is_extension_of', plus a bugfix.
        * trans.c (gfc_trans_code): Handel EXEC_SELECT_TYPE.

2009-09-30  Janus Weil  <janus@gcc.gnu.org>
            Paul Thomas <pault@gcc.gnu.org> 

        * check.c (gfc_check_move_alloc): Arguments don't have to be arrays.
        The second argument needs to be type-compatible with the first (not the
        other way around, which makes a difference for CLASS entities).
        * decl.c (encapsulate_class_symbol): New function.
        (build_sym,build_struct): Handle BT_CLASS, call
        'encapsulate_class_symbol'.
        (gfc_match_decl_type_spec): Remove warning, use BT_CLASS.
        (gfc_match_derived_decl): Set vindex;
        * expr.c (gfc_add_component_ref): New function.
        (gfc_copy_expr,gfc_check_pointer_assign,gfc_check_assign_symbol):
        Handle BT_CLASS.
        * dump-parse-tree.c (show_symbol): Print vindex.
        * gfortran.h (bt): New basic type BT_CLASS.
        (symbol_attribute): New field 'is_class'.
        (gfc_typespec): Remove field 'is_class'.
        (gfc_symbol): New field 'vindex'.
        (gfc_get_ultimate_derived_super_type): New prototype.
        (gfc_add_component_ref): Ditto.
        * interface.c (gfc_compare_derived_types): Pointer equality check
        moved here from gfc_compare_types.
        (gfc_compare_types): Handle BT_CLASS and use
        gfc_type_compatible.
        * match.c (gfc_match_allocate,gfc_match_deallocate,gfc_match_call):
        Handle BT_CLASS.
        * misc.c (gfc_clear_ts): Removed is_class.
        (gfc_basic_typename,gfc_typename): Handle BT_CLASS.
        * module.c (bt_types,mio_typespec): Handle BT_CLASS.
        (mio_symbol): Handle vindex.
        * primary.c (gfc_match_varspec,gfc_variable_attr): Handle BT_CLASS.
        * resolve.c (find_array_spec,check_typebound_baseobject):
        Handle BT_CLASS.
        (resolve_ppc_call,resolve_expr_ppc): Don't call 'gfc_is_proc_ptr_comp'
        inside 'gcc_assert'.
        (resolve_deallocate_expr,resolve_allocate_expr): Handle BT_CLASS.
        (check_class_pointer_assign): New function.
        (resolve_code): Handle BT_CLASS, call check_class_pointer_assign.
        (resolve_fl_var_and_proc,type_is_extensible,resolve_fl_variable_derived,
        resolve_fl_variable): Handle BT_CLASS.
        (check_generic_tbp_ambiguity): Add special case.
        (resolve_typebound_procedure,resolve_fl_derived): Handle BT_CLASS.
        * symbol.c (gfc_get_ultimate_derived_super_type): New function.
        (gfc_type_compatible): Handle BT_CLASS.
        * trans-expr.c (conv_parent_component_references): Handle CLASS
        containers.
        (gfc_conv_initializer): Handle BT_CLASS.
        * trans-types.c (gfc_typenode_for_spec,gfc_get_derived_type):
        Handle BT_CLASS.

2009-09-29  Daniel Kraft  <d@domob.eu>

        PR fortran/39626
        * gfortran.h (enum gfc_statement): Add ST_BLOCK and ST_END_BLOCK.
        (struct gfc_namespace): Convert flags to bit-fields and add flag
        `construct_entities' for use with BLOCK constructs.
        (enum gfc_exec_code): Add EXEC_BLOCK.
        (struct gfc_code): Add namespace field to union for EXEC_BLOCK.
        * match.h (gfc_match_block): New prototype.
        * parse.h (enum gfc_compile_state): Add COMP_BLOCK.
        * trans.h (gfc_process_block_locals): New prototype.
        (gfc_trans_deferred_vars): Made public, new prototype.
        * trans-stmt.h (gfc_trans_block_construct): New prototype.
        * decl.c (gfc_match_end): Handle END BLOCK correctly.
        (gfc_match_intent): Error if inside of BLOCK.
        (gfc_match_optional), (gfc_match_value): Ditto.
        * match.c (gfc_match_block): New routine.
        * parse.c (decode_statement): Handle BLOCK statement.
        (case_exec_markers): Add ST_BLOCK.
        (case_end): Add ST_END_BLOCK.
        (gfc_ascii_statement): Handle ST_BLOCK and ST_END_BLOCK.
        (parse_spec): Check for statements not allowed inside of BLOCK.
        (parse_block_construct): New routine.
        (parse_executable): Parse BLOCKs.
        (parse_progunit): Disallow CONTAINS in BLOCK constructs.
        * resolve.c (is_illegal_recursion): Find real container procedure and
        don't get confused by BLOCK constructs.
        (resolve_block_construct): New routine.
        (gfc_resolve_blocks), (resolve_code): Handle EXEC_BLOCK.
        * st.c (gfc_free_statement): Handle EXEC_BLOCK statements.
        * trans-decl.c (saved_local_decls): New static variable.
        (add_decl_as_local): New routine.
        (gfc_finish_var_decl): Add variable as local if inside BLOCK.
        (gfc_trans_deferred_vars): Make public.
        (gfc_process_block_locals): New routine.
        * trans-stmt.c (gfc_trans_block_construct): New routine.
        * trans.c (gfc_trans_code): Handle EXEC_BLOCK statements.

2009-09-28  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/35862
        * io.c (format_token): Add enumerators for rounding format specifiers.
        (format_lex): Tokenize the rounding format specifiers.
        (gfc_match_open): Enable rounding modes in OPEN statement.

2009-09-28  Richard Henderson  <rth@redhat.com>

        * f95-lang.c (gfc_init_builtin_functions): Update call to
        build_common_builtin_nodes.

2009-09-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * simplify.c (gfc_simplify_acos, gfc_simplify_acosh,
        gfc_simplify_asin, gfc_simplify_asinh, gfc_simplify_atan,
        gfc_simplify_atanh): Fix error message.

2009-09-24  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/41459
        * error.c(gfc_warning_now): Move warnings_are_errors test to 
        after actual emitting of the warning.
        * parse.c (next_free): Improve error locus printing.
        (next_fixed): Change gfc_warn to gfc_warning_now, and improve
        locus reporting.

2009-09-16  Michael Matz  <matz@suse.de>

        PR fortran/41212
        * trans.h (struct lang_type): Remove nontarget_type member.
        * trans.c (gfc_add_modify): Don't access it.
        * trans-decl.c (gfc_finish_var_decl): Don't allocate and set it,
        instead set DECL_RESTRICTED_P on affected decls.

2009-09-14  Richard Henderson  <rth@redhat.com>

        * f95-lang.c (gfc_init_builtin_functions): Update call to
        build_common_builtin_nodes.
        (gfc_maybe_initialize_eh): Don't call
        default_init_unwind_resume_libfunc.

2009-09-13  Richard Guenther  <rguenther@suse.de>
        Rafael Avila de Espindola  <espindola@google.com>

        * f95-lang.c (gfc_maybe_initialize_eh): Do not init
        eh_personality_libfunc.

2009-09-11  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41242
        * resolve.c (resolve_ordinary_assign): Don't call resolve_code,
        to avoid that subsequent codes are resolved more than once.
        (resolve_code): Make sure that type-bound assignment operators are
        resolved correctly.


2009-09-10  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/31292
        * fortran/decl.c(gfc_match_modproc): Check that module procedures
        from a module can USEd in module procedure statements in other
        program units.  Update locus for better error message display.
        Detect intrinsic procedures in module procedure statements.

2009-09-09  Richard Guenther  <rguenther@suse.de>

        PR fortran/41297
        * trans-expr.c (gfc_trans_scalar_assign): Correct typo that
        left 'tmp' unused in derived type assignment.

2009-09-07  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/41197
        * resolve_c (resolve_allocate_deallocate):  Complain
        if stat or errmsg varaible is an array.

2009-09-05  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/41258
        * primary.c (gfc_match_varspec): Do not look for typebound
        procedures unless the derived type has a f2k_derived namespace.

2009-09-03  Diego Novillo  <dnovillo@google.com>

        * f95-lang.c (lang_hooks): Remove const qualifier.

2009-09-01  Richard Guenther  <rguenther@suse.de>

        * f95-lang.c (gfc_mark_addressable): Remove.
        (LANG_HOOKS_MARK_ADDRESSABLE): Likewise.

2009-08-31  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/39229
        * scanner.c (next_char): Fix typo in comment.
        (gfc_get_char_literal): Warn if truncate flag is set for both fixed and
        free form source, adjusting error locus as needed.
        * parse.c (next_fixed): Clear the truncate flag.
        (next_statement): Remove truncate warning.

2009-08-31  Janus Weil  <janus@gcc.gnu.org>
            Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40940
        * array.c (gfc_match_array_constructor): Rename gfc_match_type_spec.
        * decl.c (gfc_match_type_spec): Rename to gfc_match_decl_type_spec,
        and reject CLASS with -std=f95.
        (gfc_match_implicit, gfc_match_data_decl,gfc_match_prefix,
        match_procedure_interface): Rename gfc_match_type_spec.
        * gfortran.h (gfc_type_compatible): Add prototype.
        * match.h (gfc_match_type_spec): Rename to gfc_match_decl_type_spec.
        * match.c (match_intrinsic_typespec): Rename to match_type_spec, and
        add handling of derived types.
        (gfc_match_allocate): Rename match_intrinsic_typespec and check
        type compatibility of derived types.
        * symbol.c (gfc_type_compatible): New function to check if two types
        are compatible.

2009-08-31  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40996
        * check.c (gfc_check_allocated): Implement allocatable scalars.
        * resolve.c (resolve_allocate_expr,resolve_fl_var_and_proc): Ditto.
        * trans-intrinsic.c (gfc_conv_allocated): Ditto.

2009-08-30  Daniel Kraft  <d@domob.eu>

        PR fortran/37425
        * dump-parse-tree.c (show_typebound_proc): Renamed from `show_typebound'
        and accept gfc_typebound_proc and name instead of the symtree, needed
        for intrinsic operator output.
        (show_typebound_symtree): New method calling `show_typebound_proc'.
        (show_f2k_derived): Output type-bound operators also.
        (show_symbol): Moved output of `Procedure bindings:' label to
        `show_f2k_derived'.
        * gfortran.texi (Fortran 2003 status): Mention support of
        array-constructors with explicit type specification, type-bound
        procedures/operators, type extension, ABSTRACT types and DEFERRED.
        Link to Fortran 2003 wiki page.
        (Fortran 2008 status): Fix typo.  Link to Fortran 2008 wiki page.
        * gfc-internals.texi (Type-bound Procedures): Document the new
        members/attributes of gfc_expr.value.compcall used for type-bound
        operators.
        (Type-bound Operators): New section documenting their internals.

2009-08-27  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40869
        * expr.c (gfc_check_pointer_assign): Enable interface check for
        pointer assignments involving procedure pointer components.
        * gfortran.h (gfc_compare_interfaces): Modified prototype.
        * interface.c (gfc_compare_interfaces): Add argument 'name2', to be
        used instead of s2->name. Don't rely on the proc_pointer attribute,
        but instead on the flags handed to this function.
        (check_interface1,compare_parameter): Add argument for
        gfc_compare_interfaces.
        * resolve.c (check_generic_tbp_ambiguity): Ditto.

2009-08-27  Daniel Kraft  <d@domob.eu>

        PR fortran/37425
        * gfortran.h (gfc_expr): Optionally store base-object in compcall value
        and add a new flag to distinguish assign-calls generated.
        (gfc_find_typebound_proc): Add locus argument.
        (gfc_find_typebound_user_op), (gfc_find_typebound_intrinsic_op): Ditto.
        (gfc_extend_expr): Return if failure was by a real error.
        * interface.c (matching_typebound_op): New routine.
        (build_compcall_for_operator): New routine.
        (gfc_extend_expr): Handle type-bound operators, some clean-up and
        return if failure was by a real error or just by not finding an
        appropriate operator definition.
        (gfc_extend_assign): Handle type-bound assignments.
        * module.c (MOD_VERSION): Incremented.
        (mio_intrinsic_op): New routine.
        (mio_full_typebound_tree): New routine to make typebound-procedures IO
        code reusable for type-bound user operators.
        (mio_f2k_derived): IO of type-bound operators.
        * primary.c (gfc_match_varspec): Initialize new fields in gfc_expr and
        pass locus to gfc_find_typebound_proc.
        * resolve.c (resolve_operator): Only output error about no matching
        interface if gfc_extend_expr did not already fail with an error.
        (extract_compcall_passed_object): Use specified base-object if present.
        (update_compcall_arglist): Handle ignore_pass field.
        (resolve_ordinary_assign): Update to handle extended code for
        type-bound assignments, too.
        (resolve_code): Handle EXEC_ASSIGN_CALL statement code.
        (resolve_tb_generic_targets): Pass locus to gfc_find_typebound_proc.
        (resolve_typebound_generic), (resolve_typebound_procedure): Ditto.
        (resolve_typebound_intrinsic_op), (resolve_typebound_user_op): Ditto.
        (ensure_not_abstract_walker), (resolve_fl_derived): Ditto.
        (resolve_typebound_procedures): Remove not-implemented error.
        (resolve_typebound_call): Handle assign-call flag.
        * symbol.c (find_typebound_proc_uop): New argument to pass locus for
        error message about PRIVATE, verify that a found procedure is not marked
        as erraneous.
        (gfc_find_typebound_intrinsic_op): Ditto.
        (gfc_find_typebound_proc), (gfc_find_typebound_user_op): New locus arg.

2009-08-22  Bud Davis <bdavis9659@sbcglobal.net>

        PR fortran/28093
        * io.c: reverted previous patch.

2009-08-25  Janne Blomqvist  <jb@gcc.gnu.org>

        * gfortran.texi: Fix ENCODE example.

2009-08-25  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41139
        * primary.c (gfc_match_varspec): Make sure EXPR_PPC is only used for
        calls to procedure pointer components, other references to procedure
        pointer components are EXPR_VARIABLE.
        * resolve.c (resolve_actual_arglist): Bugfix (there can be calls without
        actual arglist).
        * trans-expr.c (gfc_get_proc_ptr_comp): Renamed to 'get_proc_ptr_comp',
        removed argument 'se' and made static. Avoid inserting a temporary
        variable for calling the PPC.
        (conv_function_val): Renamed gfc_get_proc_ptr_comp.
        (gfc_conv_procedure_call): Distinguish functions returning a procedure
        pointer from calls to a procedure pointer. Distinguish calls to
        procedure pointer components from procedure pointer components as
        actual arguments.
        * trans-stmt.h (gfc_get_proc_ptr_comp): Make it static.

2009-08-24  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/41162
        * io.c (check_format): Fix to not error on slash after P. Fix some
        error loci.
        
2009-08-24  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/41154
        * io.c (check_format): Fix to not error on right paren after P.

2009-08-24  Aldy Hernandez  <aldyh@redhat.com>

        PR fortran/40660
        * trans-io.c (build_dt): Pass UNKNOWN_LOCATION to build_call_expr_loc.
        (transfer_array_desc): Same.

2009-08-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/35754
        * io.c (check_format): Add checks for comma and the allowed
        format specifiers after the 'P' specifier. Fix typo in error message
        and adjust locus.

2009-08-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/37446
        * io.c (enum format_token): Change FMT_EXT to FMT_EN and FMT_ES.
        (format_lex): Likewise.
        (token_to_string): New function.
        (check_format): Use the new tokens and the new function. Add
        check for positive width.

2009-08-22  Steven G. Kargl  <kargl@gcc.gnu.org>

        * fortran/decl.c: Disallow procedure pointers with -std=f95.

2009-08-22 Steven K. kargl  <kargl@gcc.gnu.org>
           Paul Thomas  <pault@gcc.gnu.org>

        * fortran/decl.c (match_char_spec): Rename to gfc_match_char_spec,
        and remove static.
        * fortran/gfortran.h: Add *expr3 entity to gfc_code.  Add prototype
        for gfc_match_char_spec.
        * fortran/trans-stmt.c (gfc_trans_allocate): Translate the SOURCE=
        tag.
        * fortran/match.c (match_intrinsic_typespec): New function to match
        F2003 intrinsic-type-spec.
        (conformable_arrays): New function. Check SOURCE= and
        allocation-object are conformable.
        (gfc_match_allocate): Use new functions.  Match SOURCE= tag.

2009-08-22  Bud Davis <bdavis9659@sbcglobal.net>

        PR fortran/28093
        * io.c : added variable to store original len of fmt
        * io.c (check_format): Consume H items using next_char
        in both modes to handle consecutive single quotes.
        Test for extra characters in fmt, issue warning.

2009-08-21  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41106
        * primary.c (gfc_variable_attr): Make it work also on EXPR_FUNCTION.
        (gfc_expr_attr): Use gfc_variable_attr for procedure pointer components.
        * resolve.c (resolve_fl_derived): Handle CHARACTER-valued procedure
        pointer components.
        * trans-expr.c (gfc_conv_component_ref): Ditto.
        (gfc_conv_variable): Ditto.
        (gfc_conv_procedure_call): Ditto.
        (gfc_trans_pointer_assignment): Ditto.
        * trans-types.c (gfc_get_derived_type): Ditto.

2009-08-20  Tobias Schlüter  <tobi@gcc.gnu.org>

        * trans-stmt.c (gfc_trans_do): Add a few missing folds.

2009-08-20  Michael Matz  <matz@suse.de>

        PR fortran/41126
        * trans-expr.c (gfc_conv_string_tmp): Check type compatibility
        instead of equality.

2009-08-20  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41121
        * resolve.c (resolve_symbol): Don't resolve formal_ns of intrinsic
        procedures.

2009-08-18  Michael Matz  <matz@suse.de>

        * trans-expr.c (gfc_conv_substring): Don't evaluate casted decl early,
        change order of length calculation to (end - start) + 1.
        (gfc_get_interface_mapping_array): Adjust call to
        gfc_get_nodesc_array_type.
        * trans-array.c (gfc_trans_create_temp_array,
        gfc_build_constant_array_constructor, gfc_conv_expr_descriptor): Ditto.
        * trans-stmt.c (gfc_trans_pointer_assign_need_temp): Ditto.
        * trans.c (gfc_add_modify): Assignment between base type and nontarget
        type are equal enough.
        (gfc_call_malloc): Use prvoid_type_node for return value of
        __builtin_malloc.
        (gfc_allocate_with_status): Ditto.
        * trans-types.c (gfc_array_descriptor_base): Double size of this array.
        (gfc_init_types): Build prvoid_type_node.
        (gfc_build_array_type): New bool parameter "restricted".
        (gfc_get_nodesc_array_type): Ditto, build restrict qualified pointers,
        if it's true.
        (gfc_get_array_descriptor_base): Ditto.
        (gfc_get_array_type_bounds): Ditto.
        (gfc_sym_type): Use symbol attributes to feed calls to above functions.
        (gfc_get_derived_type): Ditto.
        * trans.h (struct lang_type): Add nontarget_type member.
        * trans-types.h (prvoid_type_node): Declare.
        (gfc_get_array_type_bounds, gfc_get_nodesc_array_type): Declare new
        parameter.
        * trans-decl.c (gfc_finish_var_decl): Give scalars that can't be
        aliased a type with a different alias set than the base type.
        (gfc_build_dummy_array_decl): Adjust call to gfc_get_nodesc_array_type.

2009-08-18  Janus Weil  <janus@gcc.gnu.org>
            Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40870
        * trans-types.c (gfc_get_ppc_type): Include formal args in backend_decl
        using the interface symbol. Character types are returned by reference.
        (gfc_get_derived_type): Prevent infinite recursion loop
        if a PPC has a derived-type formal arg.

2008-08-17  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/41062
        * trans-decl.c (gfc_trans_use_stmts):  Keep going through use
        list if symbol is not use associated.

2009-08-17  Daniel Kraft  <d@domob.eu>

        PR fortran/37425
        * resolve.c (get_checked_tb_operator_target): New routine to do checks
        on type-bound operators in common between intrinsic and user operators.
        (resolve_typebound_intrinsic_op): Call it.
        (resolve_typebound_user_op): Ditto.

2009-08-17  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/41075
        * scanner.c (gfc_next_char_literal): Add comment to improve 
        readability.
        * io.c (enum format_token): Add FMT_STAR. (format_lex): Add case
        for '*'. (check_format): Check for left paren after '*'.  Change
        format checks to use %L to improve format string error locus.

2009-08-17  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40877
        * array.c (gfc_resolve_character_array_constructor): Add NULL argument
        to gfc_new_charlen.
        * decl.c (add_init_expr_to_sym,variable_decl,match_char_spec,
        gfc_match_implicit): Ditto.
        * expr.c (simplify_const_ref): Fix memory leak.
        (gfc_simplify_expr): Add NULL argument to gfc_new_charlen.
        * gfortran.h (gfc_new_charlen): Modified prototype.
        * iresolve.c (check_charlen_present,gfc_resolve_char_achar): Add NULL
        argument to gfc_new_charlen.
        * module.c (mio_charlen): Ditto.
        * resolve.c (gfc_resolve_substring_charlen,
        gfc_resolve_character_operator,fixup_charlen): Ditto.
        (resolve_fl_derived,resolve_symbol): Add argument to gfc_charlen.
        * symbol.c (gfc_new_charlen): Add argument 'old_cl' (to make a copy of
        an existing charlen).
        (gfc_set_default_type,generate_isocbinding_symbol): Fix memory leak.
        (gfc_copy_formal_args_intr): Add NULL argument to gfc_new_charlen.
        * trans-decl.c (create_function_arglist): Fix memory leak.

2009-08-17  Richard Guenther  <rguenther@suse.de>

        * trans-expr.c (gfc_trans_scalar_assign): Replace hack with
        more proper hack.

2009-08-15  Tobias Burnus  <burnus@net-b.de>

        PR fortran/41080
        * gfortranspec.c (lookup_option): Remove gfortran-specific
        version of -dumpversion.

2009-08-14  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41070
        * resolve.c (resolve_structure_cons): Make sure that ts.u.derived is
        only used if type is BT_DERIVED.

2009-08-13  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40941
        * gfortran.h (gfc_typespec): Put 'derived' and 'cl' into union.
        * decl.c (build_struct): Make sure 'cl' is only used
        if type is BT_CHARACTER.
        * symbol.c (gfc_set_default_type): Ditto.
        * resolve.c (resolve_symbol, resolve_fl_derived): Ditto.
        (resolve_equivalence,resolve_equivalence_derived): Make sure 'derived'
        is only used if type is BT_DERIVED.
        * trans-io.c (transfer_expr): Make sure 'derived' is only used if type
        is BT_DERIVED or BT_INTEGER (special case: C_PTR/C_FUNPTR).
        * array.c: Mechanical replacements to accomodate union in gfc_typespec.
        * check.c: Ditto.
        * data.c: Ditto.
        * decl.c: Ditto.
        * dump-parse-tree.c: Ditto.
        * expr.c: Ditto.
        * interface.c: Ditto.
        * iresolve.c: Ditto.
        * match.c: Ditto.
        * misc.c: Ditto.
        * module.c: Ditto.
        * openmp.c: Ditto.
        * parse.c: Ditto.
        * primary.c: Ditto.
        * resolve.c: Ditto.
        * simplify.c: Ditto.
        * symbol.c: Ditto.
        * target-memory.c: Ditto.
        * trans-array.c: Ditto.
        * trans-common.c: Ditto.
        * trans-const.c: Ditto.
        * trans-decl.c: Ditto.
        * trans-expr.c: Ditto.
        * trans-intrinsic.c: Ditto.
        * trans-io.c: Ditto.
        * trans-stmt.c: Ditto.
        * trans-types.c: Ditto.

2009-08-13  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40995
        * resolve.c (resolve_symbol): Move some checking code to
        resolve_intrinsic, and call this from here.
        (resolve_intrinsic): Some checking code moved here from resolve_symbol.
        Make sure each intrinsic is only resolved once.

2009-08-12  Tobias Burnus  <burnus@net-b.de>

        PR fortran/41034
        * symbol.c (gfc_copy_attr): Merge bits instead of replace
        bits in gfc_copy_attr.
        * gfc_check_pointer_assign (gfc_check_pointer_assign):
        Initialize ext_attr bits by zero.

2009-08-11  Richard Guenther  <rguenther@suse.de>

        * trans-types.c (gfc_get_derived_type): Do not clear TYPE_CANONICAL.

2009-08-11  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41022
        * trans-expr.c (gfc_conv_procedure_call): Handle procedure pointer
        components as actual arguments.

2009-08-10  Daniel Kraft  <d@domob.eu>

        PR fortran/37425
        * gfortran.h (struct gfc_namespace): New fields tb_uop_root and tb_op.
        (gfc_find_typebound_user_op): New routine.
        (gfc_find_typebound_intrinsic_op): Ditto.
        (gfc_check_operator_interface): Now public routine.
        * decl.c (gfc_match_generic): Match OPERATOR(X) or ASSIGNMENT(=).
        * interface.c (check_operator_interface): Made public, renamed to
        `gfc_check_operator_interface' accordingly and hand in the interface
        as gfc_symbol rather than gfc_interface so it is useful for type-bound
        operators, too.  Return boolean result.
        (gfc_check_interfaces): Adapt call to `check_operator_interface'.
        * symbol.c (gfc_get_namespace): Initialize new field `tb_op'.
        (gfc_free_namespace): Free `tb_uop_root'-based tree.
        (find_typebound_proc_uop): New helper function.
        (gfc_find_typebound_proc): Use it.
        (gfc_find_typebound_user_op): New method.
        (gfc_find_typebound_intrinsic_op): Ditto.
        * resolve.c (resolve_tb_generic_targets): New helper function.
        (resolve_typebound_generic): Use it.
        (resolve_typebound_intrinsic_op), (resolve_typebound_user_op): New.
        (resolve_typebound_procedures): Resolve operators, too.
        (check_uop_procedure): New, code from gfc_resolve_uops.
        (gfc_resolve_uops): Moved main code to new `check_uop_procedure'.

2009-08-10  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40940
        * decl.c (gfc_match_type_spec): Match CLASS statement and warn about
        missing polymorphism.
        * gfortran.h (gfc_typespec): Add field 'is_class'.
        * misc.c (gfc_clear_ts): Initialize 'is_class' to zero.
        * resolve.c (type_is_extensible): New function to check if a derived
        type is extensible.
        (resolve_fl_variable_derived): Add error checks for CLASS variables.
        (resolve_typebound_procedure): Disallow non-polymorphic passed-object
        dummy arguments, turning warning into error.
        (resolve_fl_derived): Use 'type_is_extensible'. Disallow non-polymorphic
        passed-object dummy arguments for procedure pointer components,
        turning warning into error. Add error check for CLASS components.

2009-08-05  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40955
        * gfortran.h (ext_attr_id_t): Add typedef for this enum.
        (gfc_add_ext_attribute): Use it.
        * decl.c (gfc_match_gcc_attributes): Ditto.
        * expr.c (gfc_check_pointer_assign): Ditto.
        * symbol.c (gfc_add_ext_attribute): Ditto.
        (gfc_copy_attr): Copy also ext_attr.
        * resolve.c (resolve_fl_derived,resolve_symbol): Ditto.
        * module.c (mio_symbol_attribute): Save ext_attr in the mod file.

2009-08-05  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40969
        Revert:
        2009-08-04  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40949
        * trans-types.c (gfc_get_function_type): Fix typelist of
        functions without argument.

2009-08-05  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40847
        * iresolve.c (gfc_resolve_transfer): Correct error in 'mold'
        character length for case where length expresson is NULL.

2009-08-04  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40949
        * trans-types.c (gfc_get_function_type): Fix typelist of
        functions without argument.

2009-08-04  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40875
        * decl.c (add_init_expr_to_sym): Character symbols can only be
        initialized with character expressions.

2009-08-02  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40881
        * decl.c (match_char_length): Warn about old-style character length
        declarations.
        * match.c (match_arithmetic_if,gfc_match_if): Modify warning message
        for arithmetic if.
        (gfc_match_goto): Warn about computed gotos.
        (gfc_match_return): Warn about alternate return.
        (gfc_match_st_function): Warn about statement functions.
        * resolve.c (resolve_fl_procedure): Modify warning message for
        assumed-length character functions.

2009-08-01  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40011
        * error.c : Add static flag 'warnings_not_errors'.
        (gfc_error): If 'warnings_not_errors' is set, branch to code
        from gfc_warning.
        (gfc_clear_error): Reset 'warnings_not_errors'.
        (gfc_errors_to_warnings): New function.
        * options.c (gfc_post_options): If pedantic and flag_whole_file
        change the latter to a value of 2.
        * parse.c (parse_module): Add module namespace to gsymbol.
        (resolve_all_program_units): New function.
        (clean_up_modules): New function.
        (translate_all_program_units): New function.
        (gfc_parse_file): If whole_file, do not clean up module right
        away and add derived types to namespace derived types. In
        addition, call the three new functions above.
        * resolve.c (not_in_recursive): New function.
        (not_entry_self_reference): New function.
        (resolve_global_procedure): Symbol must not be IFSRC_UNKNOWN,
        procedure must not be in the course of being resolved and
        must return false for the two new functions. Pack away the
        current derived type list before calling gfc_resolve for the
        gsymbol namespace.  It is unconditionally an error if the ranks
        of the reference and ther procedure do not match. Convert
        errors to warnings during call to gfc_procedure_use if not
        pedantic or legacy.
        (gfc_resolve): Set namespace resolved flag to -1 during
        resolution and store current cs_base.
        * trans-decl.c (gfc_get_symbol_decl): If whole_file compilation
        substitute a use associated variable, if it is available in a
        gsymbolnamespace.
        (gfc_get_extern_function_decl): If the procedure is use assoc,
        do not attempt to find it in a gsymbol because it could be an
        interface. If the symbol exists in a module namespace, return
        its backend_decl.
        * trans-expr.c (gfc_trans_scalar_assign): If a derived type
        assignment, set the rhs TYPE_MAIN_VARIANT to that of the rhs.
        * trans-types.c (copy_dt_decls_ifequal): Add 'from_gsym' as a
        boolean argument. Copy component backend_decls directly if the
        components are derived types and from_gsym is true.
        (gfc_get_derived_type): If whole_file copy the derived type from
        the module if it is use associated, otherwise, if can be found
        in another gsymbol namespace, use the existing derived type as
        the TYPE_CANONICAL and build normally.
        * gfortran.h : Add derived_types and resolved fields to
        gfc_namespace. Include prototype for gfc_errors_to_warnings.

2009-07-29  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40898
        * trans-types.c (gfc_get_function_type): Do not add hidden
        string-length argument for BIND(C) procedures.
        * trans-decl.c (create_function_arglist): Skip over nonexisting
        string-length arguments for BIND(C) procedures.

2009-07-28  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/40878
        * openmp.c (gfc_match_omp_clauses): Use gfc_error_now instead of
        gfc_error to diagnose invalid COLLAPSE arguments.

2009-07-28  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40882
        * trans-types.c (gfc_get_ppc_type): For derived types, directly use the
        backend_decl, instead of calling gfc_typenode_for_spec, to avoid
        infinte loop.
        (gfc_get_derived_type): Correctly handle PPCs returning derived types,
        avoiding infinite recursion.

2009-07-27  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40848
        * interface.c (gfc_compare_interfaces): Call 'count_types_test' before
        'generic_correspondence', and only if checking a generic interface.

2009-07-27  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40851
        * resolve.c (resolve_symbol): Do not initialize pointer derived-types.
        * trans-decl.c (init_intent_out_dt): Ditto.
        (generate_local_decl): No need to set attr.referenced for DT pointers.

2009-07-26  Tobias Burnus  <burnus@net-b.de>

        PR fortran/33197
        * intrinsic.c (make_generic): Remove assert as "atan" can be
        both ISYM_ATAN and ISYM_ATAN2.
        (add_functions): Add two-argument variant of ATAN.
        * intrinsic.h (gfc_check_atan_2): Add check for it.
        * intrinsic.texi (ATAN2): Correct and enhance description.
        (ATAN): Describe two-argument variant of ATAN.

2009-07-25  Tobias Burnus  <burnus@net-b.de>
            Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR fortran/33197
        * intrinsic.c (add_functions): Support complex arguments for
        acos,acosh,asin,asinh,atan,atanh.
        * invoke.texi (ACOS,ACOSH,ASIN,ASINH,ATAN,ATANH): Support
        complex arguments.
        * simplify.c (gfc_simplify_acos,gfc_simplify_acosh,
        gfc_simplify_asin,gfc_simplify_asinh,gfc_simplify_atan,
        gfc_simplify_atanh,gfc_simplify_atan,gfc_simplify_asinh,
        gfc_simplify_acosh,gfc_simplify_atanh): Support
        complex arguments.

2009-07-25  Richard Guenther  <rguenther@suse.de>

        PR fortran/40005
        * trans-types.c (gfc_get_array_type_bounds): Use
        build_distinct_type_copy with a proper TYPE_CANONICAL and
        re-use the type-decl of the original type.
        * trans-decl.c (build_entry_thunks): Signal cgraph we may not
        garbage collect.
        (create_main_function): Likewise.
        (gfc_generate_function_code): Likewise.
        * trans-expr.c (gfc_trans_subcomponent_assign): Do not use
        fold_convert on record types.

2009-07-25  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/39630
        * decl.c (match_ppc_decl): Implement the PASS attribute for procedure
        pointer components.
        (match_binding_attributes): Ditto.
        * gfortran.h (gfc_component): Add member 'tb'.
        (gfc_typebound_proc): Add member 'ppc' and make 'pass_arg' const.
        * module.c (MOD_VERSION): Bump module version.
        (binding_ppc): New string constants.
        (mio_component): Only use formal args if component is a procedure
        pointer and add 'tb' member.
        (mio_typebound_proc): Include pass_arg and take care of procedure
        pointer components.
        * resolve.c (update_arglist_pass): Add argument 'name' and take care of
        optional arguments.
        (extract_ppc_passed_object): New function, analogous to
        extract_compcall_passed_object, but for procedure pointer components.
        (update_ppc_arglist): New function, analogous to
        update_compcall_arglist, but for procedure pointer components.
        (resolve_typebound_generic_call): Added argument to update_arglist_pass.
        (resolve_ppc_call, resolve_expr_ppc): Take care of PASS attribute.
        (resolve_fl_derived): Check the PASS argument for procedure pointer
        components.
        * symbol.c (verify_bind_c_derived_type): Reject procedure pointer
        components in BIND(C) types.

2009-07-24  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40822
        * array.c (gfc_resolve_character_array_constructor): Use new function
        gfc_new_charlen.
        * decl.c (add_init_expr_to_sym,variable_decl,match_char_spec,
        gfc_match_implicit): Ditto.
        * expr.c (gfc_simplify_expr): Ditto.
        * gfortran.h (gfc_new_charlen): New prototype.
        * iresolve.c (check_charlen_present,gfc_resolve_char_achar): Use new
        function gfc_new_charlen.
        * module.c (mio_charlen): Ditto.
        * resolve.c (gfc_resolve_substring_charlen,
        gfc_resolve_character_operator,fixup_charlen,resolve_fl_derived,
        resolve_symbol): Ditto.
        * symbol.c (gfc_new_charlen): New function to create a new gfc_charlen
        structure and add it to a namespace.
        (gfc_copy_formal_args_intr): Make sure ts.cl is present
        for CHARACTER variables.

2009-07-24  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/40643
        PR fortran/31067
        * trans-intrinsic.c (gfc_conv_intrinsic_minmaxloc,
        gfc_conv_intrinsic_minmaxval): Handle Infinities and NaNs properly,
        optimize.
        * trans-array.c (gfc_trans_scalarized_loop_end): No longer static.
        * trans-array.h (gfc_trans_scalarized_loop_end): New prototype.

2009-07-23  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/40839
        * io.c (gfc_resolve_dt): Add LOC argument.  Fail if
        dt->io_unit is NULL.  Return FAILURE after issuing error about
        negative UNIT number.
        (match_io_element): Don't segfault if current_dt->io_unit is NULL.
        * gfortran.h (gfc_resolve_dt): Adjust prototype.
        * resolve.c (resolve_code): Adjust caller.

2009-07-22  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40796
        * trans-decl.c (generate_local_decl): Unreferenced result
        variables with allocatable components should be treated like
        INTENT_OUT dummy variables.

2009-07-22  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        * trans.h (gfc_set_decl_assembler_name): New prototype.
        * trans-decl.c (gfc_set_decl_assembler_name): New function.
        (gfc_get_symbol_decl, gfc_get_extern_function_decl,
        build_function_decl): Use gfc_set_decl_assembler_name instead of
        SET_DECL_ASSEMBLER_NAME.
        * trans-common.c (build_common_decl): Use
        gfc_set_decl_assembler_name instead of SET_DECL_ASSEMBLER_NAME.

2009-07-21  Richard Guenther  <rguenther@suse.de>

        PR fortran/40726
        * trans-decl.c (gfc_get_extern_function_decl): Do not set
        DECL_IS_MALLOC for pointer valued functions.
        (build_function_decl): The same.

2009-07-19  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/40727
        * fortran/check.c (gfc_check_cmplx, gfc_check_dcmplx): Add check that
        the optional second argument isn't of COMPLEX type.

2009-07-17  Richard Guenther  <rguenther@suse.de>

        PR c/40401
        * f95-lang.c (gfc_be_parse_file): Do not finalize the CU here.
        * trans-decl.c (gfc_gimplify_function): Remove.
        (build_entry_thunks): Do not gimplify here.
        (create_main_function): Likewise.
        (gfc_generate_function_code): Likewise.

2009-07-17  Aldy Hernandez  <aldyh@redhat.com>
            Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 40435 
        * trans-expr.c, trans-array.c, trans-openmp.c, trans-stmt.c,
        trans.c, trans-io.c, trans-decl.c, trans-intrinsic.c: Add location
        argument to fold_{unary,binary,ternary}, fold_build[123],
        build_call_expr, build_size_arg, build_fold_addr_expr,
        build_call_array, non_lvalue, size_diffop,
        fold_build1_initializer, fold_build2_initializer,
        fold_build3_initializer, fold_build_call_array,
        fold_build_call_array_initializer, fold_single_bit_test,
        omit_one_operand, omit_two_operands, invert_truthvalue,
        fold_truth_not_expr, build_fold_indirect_ref, fold_indirect_ref,
        combine_comparisons, fold_builtin_*, fold_call_expr,
        build_range_check, maybe_fold_offset_to_address, round_up,
        round_down.

2009-07-15  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40743
        * resolve.c (resolve_symbol): Don't resolve the formal namespace of a
        contained procedure.

2009-07-14  Taras Glek  <tglek@mozilla.com>
            Rafael Espindola  <espindola@google.com>

        * Make-lang.in (fortran.install-plugin): New target for
        installing plugin headers.

2009-07-13  H.J. Lu  <hongjiu.lu@intel.com>

        * module.c (mio_symbol): Remove the unused variable, formal.

2009-07-13  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40646
        * module.c (mio_symbol): If the symbol has formal arguments,
        the formal namespace will be present.
        * resolve.c (resolve_actual_arglist): Correctly handle 'called'
        procedure pointer components as actual arguments.
        (resolve_fl_derived,resolve_symbol): Make sure the formal namespace
        is present.
        * trans-expr.c (gfc_conv_procedure_call): Correctly handle the formal
        arguments of procedure pointer components.

2009-07-12  Tobias Burnus  <burnus@net-b.de>
            Philippe Marguinaud <philippe.marguinaud@meteo.fr>

        PR fortran/40588
        * primary.c (match_charkind_name): Fix condition for $ matching.

        PR libfortran/22423
        * libgfortran.h: Typedef the GFC_DTYPE_* enum.

2009-07-11  Tobias Burnus  <burnus@net-b.de>

        PR fortran/33197
        * check.c (gfc_check_fn_rc2008): New function.
        * intrinsic.h (gfc_check_fn_rc2008): New prototype.
        * intrinsic.c (add_functions): Add complex tan, cosh, sinh,
        and tanh.

2009-07-10  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/39334
        * primary.c (match_kind_param): Return MATCH_NO if the symbol
        has no value.

2008-07-09  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40629
        * resolve.c (check_host_association):  Use the existing
        accessible symtree and treat function expressions with
        symbols that have procedure flavor.

2009-07-09  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40646
        * dump-parse-tree.c (show_expr): Renamed 'is_proc_ptr_comp'.
        * expr.c (is_proc_ptr_comp): Renamed to 'gfc_is_proc_ptr_comp'.
        (gfc_check_pointer_assign): Renamed 'is_proc_ptr_comp'.
        (replace_comp,gfc_expr_replace_comp): New functions, analogous
        to 'replace_symbol' and 'gfc_expr_replace_symbol', just with components
        instead of symbols.
        * gfortran.h (gfc_expr_replace_comp): New prototype.
        (is_proc_ptr_comp): Renamed to 'gfc_is_proc_ptr_comp'.
        * interface.c (compare_actual_formal): Renamed 'is_proc_ptr_comp'.
        * match.c (gfc_match_pointer_assignment): Ditto.
        * primary.c (gfc_match_varspec): Handle array-valued procedure pointers
        and procedure pointer components. Renamed 'is_proc_ptr_comp'.
        * resolve.c (resolve_fl_derived): Correctly handle interfaces with
        RESULT statement, and handle array-valued procedure pointer components.
        (resolve_actual_arglist,resolve_ppc_call,resolve_expr_ppc): Renamed
        'is_proc_ptr_comp'.
        * trans-array.c (gfc_walk_function_expr): Ditto.
        * trans-decl.c (gfc_get_symbol_decl): Security check for presence of
        ns->proc_name.
        * trans-expr.c (gfc_conv_procedure_call): Handle array-valued procedure
        pointer components. Renamed 'is_proc_ptr_comp'.
        (conv_function_val,gfc_trans_arrayfunc_assign): Renamed
        'is_proc_ptr_comp'.
        (gfc_get_proc_ptr_comp): Do not modify the argument 'e', but instead
        make a copy of it.
        * trans-io.c (gfc_trans_transfer): Handle array-valued procedure
        pointer components.

2009-07-09  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40604
        * intrinsic.c (gfc_convert_type_warn): Set sym->result.
        * trans-expr.c (gfc_conv_procedure_call): Fix -fcheck=pointer
        for optional arguments.

2009-07-08  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40675
        * simplify.c (gfc_simplify_sign): Handle signed zero correctly.
        * trans-intrinsic.c (gfc_conv_intrinsic_sign): Support
        -fno-sign-zero.
        * invoke.texi (-fno-sign-zero): Add text regarding SIGN intrinsic.

2008-07-08  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40591
        * decl.c (match_procedure_interface):  Correct the association
        or creation of the interface procedure's symbol.

2009-07-04  Jakub Jelinek  <jakub@redhat.com>

        * trans-intrinsic.c (gfc_conv_intrinsic_minmaxloc): For integer
        maxloc initialize limit to -huge-1 rather than just -huge.

2009-07-04  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40593
        * interface.c (compare_actual_formal): Take care of proc-pointer-valued
        functions as actual arguments.
        * trans-expr.c (gfc_conv_procedure_call): Ditto.
        * resolve.c (resolve_specific_f0): Use the correct ts.

2009-07-02  Michael Matz  <matz@suse.de>

        PR fortran/32131
        * trans-array.c (gfc_conv_descriptor_stride_get): Return
        constant one for strides in the first dimension of ALLOCATABLE
        arrays.

2009-06-30  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40594
        * trans-types.c (gfc_get_derived_type): Bugfix, reverting one hunk from
        r147206.

2009-06-29  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40580
        * trans-expr.c  (gfc_conv_procedure_call): Add -fcheck=pointer check.
        * libgfortran.h: Add GFC_RTCHECK_POINTER.
        * invoke.texi (-fcheck): Document new pointer option.
        * options.c (gfc_handle_runtime_check_option): Handle pointer option.

        * gfortran.texi (C Binding): Improve wording.
        * iso-c-binding.def: Remove obsolete comment.

2009-06-29  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40551
        * dependency.h : Add second bool* argument to prototype of
        gfc_full_array_ref_p.
        * dependency.c (gfc_full_array_ref_p): If second argument is
        present, return true if last dimension of reference is an
        element or has unity stride.
        * trans-array.c : Add NULL second argument to references to
        gfc_full_array_ref_p.
        * trans-expr.c : The same, except for;
        (gfc_trans_arrayfunc_assign): Return fail if lhs reference
        is not a full array or a contiguous section.

2009-06-28  Tobias Burnus  <burnus@net-b.de>
            Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR fortran/34112
        * symbol.c (gfc_add_ext_attribute): New function.
        (gfc_get_sym_tree): New argument allow_subroutine.
        (gfc_get_symbol,gfc_get_ha_sym_tree,gen_cptr_param,gen_fptr_param
        gen_shape_param,generate_isocbinding_symbol): Use it.
        * decl.c (find_special): New argument allow_subroutine.
        (add_init_expr_to_sym,add_hidden_procptr_result,attr_decl1,
        match_procedure_in_type,gfc_match_final_decl): Use it.
        (gfc_match_gcc_attributes): New function.
        * gfortran.texi (Mixed-Language Programming): New section
        "GNU Fortran Compiler Directives".
        * gfortran.h (ext_attr_t): New struct.
        (symbol_attributes): Use it.
        (gfc_add_ext_attribute): New prototype.
        (gfc_get_sym_tree): Update pototype.
        * expr.c (gfc_check_pointer_assign): Check whether call
        convention is the same.
        * module.c (import_iso_c_binding_module, create_int_parameter,
        use_iso_fortran_env_module): Update gfc_get_sym_tree call.
        * scanner.c (skip_gcc_attribute): New function.
        (skip_free_comments,skip_fixed_comments): Use it.
        (gfc_next_char_literal): Support !GCC$ lines.
        * resolve.c (check_host_association): Update
        gfc_get_sym_tree call.
        * match.c (gfc_match_sym_tree,gfc_match_call): Update
        gfc_get_sym_tree call.
        * trans-decl.c (add_attributes_to_decl): New function.
        (gfc_get_symbol_decl,get_proc_pointer_decl,
        gfc_get_extern_function_decl,build_function_decl: Use it.
        * match.h (gfc_match_gcc_attributes): Add prototype.
        * parse.c (decode_gcc_attribute): New function.
        (next_free,next_fixed): Support !GCC$ lines.
        * primary.c (match_actual_arg,check_for_implicit_index,
        gfc_match_rvalue,gfc_match_rvalue): Update
        gfc_get_sym_tree call.

2009-06-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * gfortran.h: Define HAVE_mpc_pow.
        * arith.c (complex_reciprocal, complex_pow): If HAVE_mpc_pow,
        don't define these functions.
        (arith_power): If HAVE_mpc_pow, use mpc_pow.

2009-06-26  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/39997
        PR fortran/40541
        * decl.c (add_hidden_procptr_result): Copy the typespec to the hidden
        result.
        * expr.c (gfc_check_pointer_assign): Enable interface check for
        procedure pointer assignments where the rhs is a function returning a
        procedure pointer.
        * resolve.c (resolve_symbol): If an external procedure with unspecified
        return type can not be implicitly typed, it must be a subroutine.

2009-06-24  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40427
        * gfortran.h (gfc_component): New member 'formal_ns'.
        (gfc_copy_formal_args_ppc,void gfc_ppc_use): New.
        * interface.c (gfc_ppc_use): New function, analogous to
        gfc_procedure_use, but for procedure pointer components.
        * module.c (MOD_VERSION): Bump module version.
        (mio_component): Treat formal arguments.
        (mio_formal_arglist): Changed argument from gfc_symbol to
        gfc_formal_arglist.
        (mio_symbol): Changed argument of mio_formal_arglist.
        * resolve.c (resolve_ppc_call,resolve_expr_ppc): Call gfc_ppc_use,
        to check actual arguments and treat formal args correctly.
        (resolve_fl_derived): Copy formal args of procedure pointer components
        from their interface.
        * symbol.c (gfc_copy_formal_args_ppc): New function, analogous to
        gfc_copy_formal_args, but for procedure pointer components.

2009-06-22  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/37254
        PR fortran/39850
        * interface.c (compare_parameter): Set implicit type for function
        actual arguments with BT_UNKNOWN.

2009-06-22  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40472
        PR fortran/50520
        * simplify.c (gfc_simplify_spread): Fix the case that source=
        is a scalar.

2009-06-22  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40443
        * interface.c (gfc_search_interface): Hold back a match to an
        elementary procedure until all other possibilities are
        exhausted.

2009-06-22  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40472
        * simplify.c (gfc_simplify_spread): Restrict the result size to
        the limit for an array constructor.

2009-06-21  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/39850
        * interface.c (gfc_compare_interfaces): Take care of implicit typing
        when checking the function attribute. Plus another bugfix.
        (compare_parameter): Set attr.function and attr.subroutine according
        to the usage of a procedure as actual argument.

2009-06-20  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40452
        * trans-decl.c (add_argument_checking): Disable bounds check
        for allowed argument storage association.

2009-06-19  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40440
        * trans-expr.c (gfc_conv_procedure_call): Do not deallocate
        allocatable components if the argument is a pointer.

2009-06-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * gfortran.h (gfc_expr): Use mpc_t to represent complex numbers.

        * arith.c, dump-parse-tree.c, expr.c, module.c, resolve.c,
        simplify.c, target-memory.c, target-memory.h, trans-const.c,
        trans-expr.c: Convert to mpc_t throughout.

2009-06-19  Ian Lance Taylor  <iant@google.com>

        * cpp.c (struct gfc_cpp_option_data): Give this struct, used for
        the global variable gfc_cpp_option, a name.

2009-06-19  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40450
        * trans-expr.c (gfc_conv_procedure_call): Only add an extra addr_expr
        to a procedure pointer actual argument, if it is not itself a
        dummy arg.

2009-06-18  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40451
        * resolve.c (resolve_contained_fntype): Prevent implicit typing for
        procedures with explicit interface.
        * symbol.c (gfc_check_function_type): Ditto.

2009-06-16  Ian Lance Taylor  <iant@google.com>

        * decl.c (build_struct): Rewrite loop over constructor elements.

2009-06-16  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/36947
        PR fortran/40039
        * expr.c (gfc_check_pointer_assign): Call 'gfc_compare_interfaces' with
        error message.
        * gfortran.h (gfc_compare_interfaces): Additional argument.
        * interface.c (operator_correspondence): Removed.
        (gfc_compare_interfaces): Additional argument to return error message.
        Directly use the code from 'operator_correspondence' instead of calling
        the function. Check for OPTIONAL. Some rearrangements.
        (check_interface1): Call 'gfc_compare_interfaces' without error message.
        (compare_parameter): Call 'gfc_compare_interfaces' with error message.
        * resolve.c (check_generic_tbp_ambiguity): Call 'gfc_compare_interfaces'
        without error message.

2009-06-16  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40383
        * trans-decl.c (create_function_arglist): Copy formal charlist to
        have a proper passed_length for -fcheck=bounds.

2009-06-12  Steven G. Kargl  <kargls@comcast.net>

        * arith.c (gfc_enum_initializer): Move function ...
        * decl.c: ... here.  Remove gfc_ prefix and make static.
        (enumerator_decl): Update function call.
        * gfortran.h:  Remove gfc_enum_initializer prototype.

2009-06-12  Aldy Hernandez  <aldyh@redhat.com>

        * trans-array.c (gfc_trans_allocate_array_storage): Pass
        location on down.
        (gfc_trans_array_constructor_value): Same.
        (gfc_trans_scalarized_loop_end): Same.
        (gfc_conv_ss_startstride): Same.
        (gfc_trans_g77_array): Same.
        (gfc_trans_dummy_array_bias): Same.
        (gfc_conv_array_parameter): Same.
        (structure_alloc_comps): Same.
        * trans-expr.c (gfc_conv_function_call): Same.
        (fill_with_spaces): Same.
        (gfc_trans_string_copy): Same.
        (gfc_trans_scalar_assign): Same.
        * trans-stmt.c (gfc_trans_goto): Same.
        (gfc_trans_if_1): Same.
        (gfc_trans_simple_do): Same.
        (gfc_trans_do): Same.
        (gfc_trans_do_while): Same.
        (gfc_trans_logical_select): Same.
        (gfc_trans_select): Same.
        (gfc_trans_forall_loop): Same.
        (gfc_trans_nested_forall_loop): Same.
        (generate_loop_for_temp_to_lhs): Same.
        (generate_loop_for_rhs_to_temp): Same.
        (gfc_trans_forall_1): Same.
        (gfc_trans_where_assign): Same.
        (gfc_trans_where_3): Same.
        (gfc_trans_allocate): Same.
        * trans.c (gfc_finish_block): Same.
        (gfc_trans_runtime_check): Same.
        (gfc_call_malloc): Same.
        (gfc_allocate_with_status): Same.
        (gfc_call_free): Same.
        (gfc_deallocate_with_status): Same.
        (gfc_call_realloc): Same.
        (gfc_trans_code): Same.
        * trans-decl.c (gfc_init_default_dt): Same.
        (gfc_generate_constructors): Same.
        * trans-io.c (gfc_trans_io_runtime_check): Same.
        * trans-intrinsic.c (gfc_conv_intrinsic_ctime): Same.
        (gfc_conv_intrinsic_fdate): Same.
        (gfc_conv_intrinsic_ttynam): Same.
        (gfc_conv_intrinsic_minmax): Same.
        (gfc_conv_intrinsic_minmax_char): Same.
        (gfc_conv_intrinsic_anyall): Same.
        (gfc_conv_intrinsic_count): Same.
        (gfc_conv_intrinsic_arith): Same.
        (gfc_conv_intrinsic_minmaxloc): Same.
        (gfc_conv_intrinsic_minmaxval): Same.
        (gfc_conv_intrinsic_rrspacing): Same.
        (gfc_conv_intrinsic_array_transfer): Same.
        (gfc_conv_intrinsic_trim): Same.
        (gfc_conv_intrinsic_repeat): Same.
        
2009-06-12  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40176
        * resolve.c (resolve_symbol): Additional error check, preventing an
        infinite loop.

2009-06-11  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40402
        * resolve.c (next_data_value): It is an error if the value is
        not constant.

2009-06-11  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR fortran/38718
        * intrinsic.c (add_functions): Add simplifiers for ISNAN,
        IS_IOSTAT_END and IS_IOSTAT_EOR.
        * intrinsic.h (gfc_simplify_is_iostat_end, gfc_simplify_is_iostat_eor,
        gfc_simplify_isnan): New prototypes.
        * intrinsic.c (gfc_simplify_is_iostat_end, gfc_simplify_is_iostat_eor,
        gfc_simplify_isnan): New functions.

2009-06-11  Jakub Jelinek  <jakub@redhat.com>

        * interface.c (fold_unary): Rename to...
        (fold_unary_intrinsic): ... this.
        (gfc_extend_expr): Adjust caller.
        (gfc_match_generic_spec): Likewise.  Initialize *op to INTRINSIC_NONE
        to avoid warnings.
        * expr.c (gfc_simplify_expr): Initialize start and end before calling
        gfc_extract_int.

2009-06-10  Dave Korn  <dave.korn.cygwin@gmail.com>

        * trans-decl.c (create_main_function):  Don't build main decl twice.

2009-06-09  Tobias Burnus  <burnus@net-b.de>

        * trans-decl.c (gfc_generate_function_code): Use gfc_option.rtcheck
        instead of flag_bounds_check.
        * intrinsic.texi (ISO_FORTRAN_ENV): Document INT{8,16,32,64} and
        REAL{32,64,128}.

2009-06-08  Paul Thomas  <pault@gcc.gnu.org>

        * trans-array.h : Replace prototypes for
        gfc_conv_descriptor_offset, gfc_conv_descriptor_stride,
        gfc_conv_descriptor_lbound, gfc_conv_descriptor_ubound with new
        prototypes of the same names with _get or _set appended.
        * trans-array.c : Make the originals of the above static and
        new functions for the _get and _set functions. Update all the
        references to these descriptor access functions.
        * trans-expr.c : Update references to the above descriptor
        access functions.
        * trans-intrinsic.c : The same.
        * trans-openmp.c : The same.
        * trans-stmt.c : The same.

2009-06-08  Alexandre Oliva  <aoliva@redhat.com>

        * options.c (gfc_post_options): Disable dump_parse_tree
        during -fcompare-debug-second.

2009-06-07  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/40008
        * gfortran.h (gfc_open): Add newunit expression to structure.
        * io.c (io_tag): Add new unit tag and fix whitespace.
        (match_open_element): Add matching for newunit.
        (gfc_free_open): Free the newunit expression.
        (gfc_resolve_open): Add newunit to resolution and check constraints.
        (gfc_resolve_close): Add check for non-negative unit.
        (gfc_resolve_filepos): Likewise.
        (gfc_resolve_dt): Likewise.
        * trans-io.c (set_parameter_value): Build runtime checks for unit
        numbers within range of kind=4 integer. (gfc_trans_open) Set the
        newunit parameter.
        * ioparm.def (IOPARM): Define the newunit parameter as a pointer
        to GFC_INTEGER_4, pint4.

2009-06-07  Daniel Franke  <franke.daniel@gmail.com>

        PR fortran/25104
        PR fortran/29962
        * array.c (gfc_append_constructor): Added NULL-check.
        * check.c (gfc_check_spread): Check DIM.
        (gfc_check_unpack): Check that the ARRAY arguments provides enough
        values for MASK.
        * intrinsic.h (gfc_simplify_spread): New prototype.
        (gfc_simplify_unpack): Likewise.
        * intrinsic.c (add_functions): Added new simplifier callbacks.
        * simplify.c (gfc_simplify_spread): New.
        (gfc_simplify_unpack): New.
        * expr.c (check_transformational): Allow additional transformational
        intrinsics in initialization expression.

2009-06-07  Daniel Franke  <franke.daniel@gmail.com>

        PR fortran/25104
        PR fortran/29962
        * check.c (gfc_check_all_any): Check rank of DIM.
        (gfc_check_count): Likewise.
        * intrinsic.h (gfc_simplify_all): New prototype.
        (gfc_simplify_any): Likewise.
        (gfc_simplify_count): Likewise.
        (gfc_simplify_sum): Likewise.
        (gfc_simplify_product): Likewise.
        * intrinsic.c (add_functions): Added new simplifier callbacks.
        * simplify.c (transformational_result): New.
        (simplify_transformation_to_scalar): New.
        (simplify_transformation_to_array): New.
        (gfc_count): New.
        (gfc_simplify_all): New.
        (gfc_simplify_any): New.
        (gfc_simplify_count): New.
        (gfc_simplify_sum): New.
        (gfc_simplify_product): New.
        * expr.c (check_transformational): Allow additional transformational
        intrinsics in initialization expression.

2009-06-07  Daniel Franke  <franke.daniel@gmail.com>

        * check.c (dim_rank_check): Return SUCCESS if DIM=NULL.
        (gfc_check_lbound): Removed (now) redundant check for DIM=NULL.
        (gfc_check_minloc_maxloc): Likewise.
        (check_reduction): Likewise.
        (gfc_check_size): Likewise.
        (gfc_check_ubound): Likewise.
        (gfc_check_cshift): Added missing shape-conformance checks.
        (gfc_check_eoshift): Likewise.
        * gfortran.h (gfc_check_conformance): Modified prototype to printf-style.
        * expr.c (gfc_check_conformance): Accept error-message chunks in 
        printf-style. Changed all callers.


2009-06-07  Daniel Franke  <franke.daniel@gmail.com>

        PR fortran/25104
        PR fortran/29962
        * intrinsic.h (gfc_simplify_dot_product): New prototype.
        (gfc_simplify_matmul): Likewise.
        (gfc_simplify_transpose): Likewise.
        * intrinsic.c (add_functions): Added new simplifier callbacks.
        * simplify.c (init_result_expr): New.
        (compute_dot_product): New.
        (gfc_simplify_dot_product): New.
        (gfc_simplify_matmul): New.
        (gfc_simplify_transpose): New.
        * expr.c (check_transformational): Allow transformational intrinsics
        with simplifier in initialization expression.

2009-06-06  Daniel Franke  <franke.daniel@gmail.com>

        PR fortran/37203
        * simplify.c (gfc_simplify_reshape): Fixed reshaping of empty arrays
        without padding.

2009-06-06  Daniel Franke  <franke.daniel@gmail.com>

        PR fortran/32890
        * intrinsic.h (gfc_simplify_pack): New prototype.
        * intrinsic.c (add_functions): Added
        simplifier-callback to PACK.
        * simplify.c (is_constant_array_expr): Moved
        to beginning of file.
        (gfc_simplify_pack): New.
        * check.c (gfc_check_pack): Check that VECTOR has enough elements.
        Added safeguards for empty arrays.

2009-06-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * simplify.c (call_mpc_func): Use mpc_realref/mpc_imagref
        instead of MPC_RE/MPC_IM.

2009-06-05  Alexandre Oliva  <aoliva@redhat.com>

        * trans-decl.c (gfc_build_qualified_array): Don't skip generation
        of range types.
        * trans.h (struct lang_type): Add base_decls.
        (GFC_TYPE_ARRAY_BASE_DECL): New.
        * trans-types.c (gfc_get_array_type_bounds): Initialize base decls
        proactively and excessively.
        (gfc_get_array_descr_info): Use existing base decls if available.

2009-06-04  Daniel Franke  <franke.daniel@gmail.com>

        PR fortran/37203
        * check.c (gfc_check_reshape): Additional checks for the
        SHAPE and ORDER arguments.
        * simplify.c (gfc_simplify_reshape): Converted argument checks
        to asserts.

2009-06-03  Tobias Burnus  <burnus@net-b.de>

        * gfortran.texi: Add mixed-language programming, mention
        varying string lengths, some clean up of introduction parts.
        * intrinsic.texi (instrinsic modules): Create @menu for subsections.
        (ISO_C_BINDING): Support ISOCBINDING_INT_FAST128_T.
        * libgfortran.h: Comment to rember to keep gfortran.texi in sync.
        * iso-c-binding.def: Support ISOCBINDING_INT_FAST128_T.

2009-06-03  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
            Tobias Burnus  <burnus@net-b.de>

        * iso-c-binding.def: Use INTMAX_TYPE instead of intmax_type_node.
        * trans-types.c (init_c_interop_kinds): Remove intmax_type_node.

2009-06-03  Alexandre Oliva  <aoliva@redhat.com>

        * module.c (mio_f2k_derived): Initialize cur.

2009-06-01  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40309
        * trans-decl.c (gfc_sym_identifier): Use "MAIN__" for PROGRAM "main".
        (create_main_function): Set main_identifier_node.

2009-05-29  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR fortran/40019
        * trans-types.c (gfc_build_uint_type): Make nonstatic.
        * trans.h (gfor_fndecl_clz128, gfor_fndecl_ctz128): New prototypes.
        * trans-types.h (gfc_build_uint_type): Add prototype.
        * trans-decl.c (gfc_build_intrinsic_function_decls): Build
        gfor_fndecl_clz128 and gfor_fndecl_ctz128.
        * trans-intrinsic.c (gfc_conv_intrinsic_leadz,
        gfc_conv_intrinsic_trailz): Call the right builtins or library
        functions, and cast arguments to unsigned types first.
        * simplify.c (gfc_simplify_leadz): Deal with negative arguments.

2009-05-27  Ian Lance Taylor  <iant@google.com>

        * Make-lang.in (gfortran$(exeext)): Change $(COMPILER) to
        $(LINKER).
        (f951$(exeext)): Likewise.

2009-05-27  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40270
        * trans-decl.c (create_main_function): Mark MAIN__ and
        argc/argv as TREE_USED and push/pop function_decl context
        if needed.

2009-05-26  Tobias Burnus  <burnus@net-b.de>

        PR fortran/39178
        * gfortranspec.c (lang_specific_driver): Stop linking
        libgfortranbegin.
        * trans-decl.c (gfc_build_builtin_function_decls): Stop
        making MAIN__ publicly visible.
        (gfc_build_builtin_function_decls): Add
        gfor_fndecl_set_args.
        (create_main_function) New function.
        (gfc_generate_function_code): Use it.

2009-05-26  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40246
        * match.c (gfc_match_nullify): NULLify freed pointer.

2009-05-26  Ian Lance Taylor  <iant@google.com>

        * Make-lang.in (gfortranspec.o): Use $(COMPILER).
        (gfortran$(exeext), f951$(exeext), fortran/cpp.o): Likewise.

2009-05-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * gfortran.h (GFC_MPC_RND_MODE): New.
        * simplify.c (call_mpc_func): New helper function.
        (gfc_simplify_cos, gfc_simplify_exp, gfc_simplify_log,
        gfc_simplify_sin, gfc_simplify_sqrt): Add MPC support.

2009-05-25  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40176
        * primary.c (gfc_match_varspec): Handle procedure pointer components
        with array return value.
        * resolve.c (resolve_expr_ppc): Ditto.
        (resolve_symbol): Make sure the interface of a procedure pointer has
        been resolved.
        * trans-array.c (gfc_walk_function_expr): Handle procedure pointer
        components with array return value.
        * trans-expr.c (gfc_conv_component_ref,gfc_conv_procedure_call,
        gfc_trans_arrayfunc_assign): Ditto.
        (gfc_trans_pointer_assignment): Handle procedure pointer assignments,
        where the rhs is a dummy argument.
        * trans-types.c (gfc_get_ppc_type,gfc_get_derived_type): Handle
        procedure pointer components with array return value.

2009-05-24  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
            Dominique Dhumieres

        PR fortran/35732
        PR fortran/39872
        * trans-array.c (gfc_conv_ss_startstride): Add one to index.

2009-05-22  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR fortran/40195
        * module.c (read_md5_from_module_file): Close file before returning.

2009-05-18  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40164
        * primary.c (gfc_match_rvalue): Handle procedure pointer components in
        arrays.
        * resolve.c (resolve_ppc_call,resolve_expr_ppc): Resolve component and
        array references.
        (resolve_fl_derived): Procedure pointer components are not required to
        have constant array bounds in their return value.

2009-05-18  Janus Weil  <janus@gcc.gnu.org>

        * intrinsic.c (add_sym): Fix my last commit (r147655),
        which broke bootstrap.

2009-05-18  Richard Guenther  <rguenther@suse.de>

        PR fortran/40168
        * trans-expr.c (gfc_trans_zero_assign): For local array
        destinations use an assignment from an empty constructor.

2009-05-18  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/36947
        PR fortran/40039
        * expr.c (gfc_check_pointer_assign): Check intents when comparing
        interfaces.
        * gfortran.h (typedef struct gfc_intrinsic_arg): Add 'intent' member.
        (gfc_compare_interfaces): Additional argument.
        * interface.c (operator_correspondence): Add check for equality of
        intents, and new argument 'intent_check'.
        (gfc_compare_interfaces): New argument 'intent_check', which is passed
        on to operator_correspondence.
        (check_interface1): Don't check intents when comparing interfaces.
        (compare_parameter): Do check intents when comparing interfaces.
        * intrinsic.c (add_sym): Add intents for arguments of intrinsic
        procedures.
        (add_sym_1,add_sym_1s,add_sym_1m,add_sym_2,add_sym_2s,add_sym_3,
        add_sym_3ml,add_sym_3red,add_sym_3s,add_sym_4): Use INTENT_IN by
        default.
        (add_sym_1_intent,add_sym_1s_intent,add_sym_2s_intent,add_sym_3s_intent)
        : New functions to add intrinsic symbols, specifying custom intents.
        (add_sym_4s,add_sym_5s): Add new arguments to specify intents.
        (add_functions,add_subroutines): Add intents for various intrinsics.
        * resolve.c (check_generic_tbp_ambiguity): Don't check intents when
        comparing interfaces.
        * symbol.c (gfc_copy_formal_args_intr): Copy intent.

2009-05-17  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        * iso-fortran-env.def: Define INT8, INT16, INT32, INT64, REAL32,
        REAL64 and REAL128.
        * gfortran.h (gfc_get_int_kind_from_width_isofortranenv,
        gfc_get_real_kind_from_width_isofortranenv): New prototypes.
        * iso-c-binding.def: Update definitions for the INT*_T,
        INT_LEAST*_T and INT_FAST*_T named parameters.
        * trans-types.c (get_typenode_from_name, get_int_kind_from_name,
        gfc_get_real_kind_from_width_isofortranenv): New functions.

2009-05-17  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR fortran/36260
        * intrinsic.c (add_functions, add_subroutines): Fix argument
        names and wrap long lines.
        * intrinsic.texi: Fix documentation and argument names of
        LOG_GAMMA, DATAN2, DBESJN, DTIME, ETIME, FSTAT, STAT, LSTAT,
        GET_COMMAND, IDATE, LTIME, MOVE_ALLOC, NINT, OR, PRODUCT,
        SUM, RAND, RANDOM_SEED, REAL, SELECTED_INT_KIND,
        SELECTED_REAL_KIND and XOR.

2009-05-16  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR fortran/33197
        * intrinsic.c (add_functions): Use ERFC_SCALED simplification.
        * intrinsic.h (gfc_simplify_erfc_scaled): New prototype.
        * simplify.c (fullprec_erfc_scaled, asympt_erfc_scaled,
        gfc_simplify_erfc_scaled): New functions.

2009-05-16  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR fortran/31243
        * resolve.c (resolve_substring): Don't allow too large substring
        indexes.
        (gfc_resolve_substring_charlen): Fix typo.
        (gfc_resolve_character_operator): Fix typo.
        (resolve_charlen): Catch unreasonably large string lengths.
        * simplify.c (gfc_simplify_len): Don't error out on LEN
        range checks.

2009-05-16  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR fortran/36031
        * decl.c (set_enum_kind): Use global short-enums flag.
        * gfortran.h (gfc_option_t): Remove short_enums flag.
        * lang.opt (-fshort-enums): Refer to C documentation.
        * options.c (gfc_init_options, gfc_handle_option): Use global
        short-enums flag.

2009-05-15  Tobias Burnus  <burnus@net-b.de>

        PR fortran/39352
        * f95-lang.c: Add gfc_maybe_initialize_eh.
        * gfortran.h: Add gfc_maybe_initialize_eh prototype.
        * Make-lang.in: Add new .h dendencies for f95-lang.c
        * openmp.c (resolve_omp_do): Call gfc_maybe_initialize_eh.
        * misc.c (gfc_free): Avoid #define trickery for free.

2009-05-14  Steven G. Kargl  <kargl@gcc.gnu.org>

        * dump-parse-tree.c (show_code_node): Add ERRMSG to the dumping
        of allocate and deallocate statements.

2009-05-14  Ian Lance Taylor  <iant@google.com>

        * decl.c (match_attr_spec): Change d to unsigned int.
        * dump-parse-tree.c (show_namespace): Change op to int.  Add cast.
        * interface.c (gfc_check_interfaces): Change i to int.  Add casts.
        * module.c (read_module): Change i to int.  Add cast.
        (write_module): Change i to int.
        * symbol.c (gfc_get_namespace): Change in to int.
        (gfc_free_namespace): Change i to int.
        * trans-io.c (gfc_build_io_library_fndecls): Change ptype to
        unsigned int.  Add cast.
        * trans-types.c (gfc_init_kinds): Change mode to unsigned int.
        Add casts.

2009-05-14  Daniel Kraft  <d@domob.eu>

        PR fortran/40045
        * dump-parse-tree.c (show_typebound): Fix missing adaption to new
        type-bound procedure storage structure.

2009-05-14  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/39996
        * decl.c (gfc_match_function_decl): Use gfc_add_type.
        * symbol.c (gfc_add_type): Better checking for duplicate types in
        function declarations. And: Always give an error for duplicte types,
        not just a warning with -std=gnu.

2009-05-14  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/39865
        * io.c (resolve_tag_format): CHARACTER array in FMT= argument
        isn't an extension.  Reject non-CHARACTER array element of
        assumed shape or pointer or assumed size array.
        * trans-array.c (array_parameter_size): New function.
        (gfc_conv_array_parameter): Add size argument.  Call
        array_parameter_size if it is non-NULL.
        * trans-array.h (gfc_conv_array_parameter): Adjust prototype.
        * trans-expr.c (gfc_conv_function_call, gfc_trans_arrayfunc_assign):
        Adjust callers.
        * trans-intrinsic.c (gfc_conv_intrinsic_loc): Likewise.
        * trans-io.c (gfc_convert_array_to_string): Rewritten.

2009-05-13  Steven G. Kargl  <kargl@gcc.gnu.org>

        * gfortran.h (gfc_code): Rename struct member expr to expr1.
        * openmp.c (resolve_omp_atomic): Update expr to expr1.
        * interface.c (gfc_extend_assign): Ditto.
        * trans-expr.c (gfc_conv_expr_reference, gfc_trans_assignment,
        gfc_trans_init_assign): Ditto.
        * dump-parse-tree.c (show_code_node): Ditto.
        * trans-openmp.c (gfc_trans_omp_atomic): Ditto.
        * trans-stmt.c ( gfc_trans_label_assign, gfc_trans_goto, gfc_trans_call,
        gfc_trans_return, gfc_trans_pause, gfc_trans_stop, gfc_trans_if_1,
        gfc_trans_arithmetic_if, gfc_trans_do_while, gfc_trans_integer_select,
        gfc_trans_logical_select, gfc_trans_character_select
        forall_make_variable_temp, check_forall_dependencies
        gfc_trans_forall_1, gfc_trans_where_2, gfc_trans_where_3
        gfc_trans_where, gfc_trans_allocate, gfc_trans_deallocate): Ditto.
        * io.c (match_io_element, gfc_match_inquire): Ditto.
        * resolve.c (resolve_typebound_call, resolve_ppc_call,
        resolve_allocate_expr, resolve_allocate_deallocate, resolve_select,
        resolve_transfer, resolve_where, gfc_resolve_assign_in_forall,
        gfc_resolve_blocks, resolve_code, build_init_assign): Ditto.
        * st.c (gfc_free_statement): Ditto.
        * match.c (gfc_match_assignment, gfc_match_pointer_assignment,
        match_arithmetic_if, gfc_match_if, gfc_match_elseif
        gfc_match_stopcode, gfc_match_assign, gfc_match_goto,
        gfc_match_nullify, match_typebound_call, gfc_match_call
        gfc_match_select, match_simple_where, gfc_match_where
        gfc_match_elsewhere, match_simple_forall, gfc_match_forall): Ditto.
        * trans-io.c (gfc_trans_transfer): Ditto.
        * parse.c (parse_where_block, parse_if_block): Ditto.

2009-05-13  Steven G. Kargl  <kargl@gcc.gnu.org>

        * gfortran.h (gfc_code): Rename struct member label to label1.
        * dump-parse-tree.c (show_code_node): Update symbol.
        * trans-stmt.c (gfc_trans_label_assign, gfc_trans_goto,
        gfc_trans_arithmetic_if): Ditto.
        * resolve.c (gfc_resolve_blocks, resolve_code): Ditto.
        * match.c (match_arithmetic_if, gfc_match_if, gfc_reference_st_label,
        gfc_match_assign, gfc_match_goto): Ditto.
        * parse.c (parse_do_block): Ditto.

2009-05-13  Tobias Burnus  <burnus@net-b.de>

        PR fortran/34153
        * gfortran.h (gfc_exec_op): Add EXEC_END_PROCEDURE.
        * dump-parse-tree.c (show_code_node): Use EXEC_END_PROCEDURE.
        * trans.c (gfc_trans_code): Ditto.
        * resolve.c (resolve_code): Ditto.
        * st.c (gfc_free_statement): Ditto.
        * parse.c (accept_statement): Ditto.

2009-05-12  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40110
        * decl.c (gfc_match_kind_spec): Turn C kind error into a warning.

2009-05-11  Steve Ellcey  <sje@cup.hp.com>

        * resolve.c (check_host_association): Initialize tail.

2009-05-11  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40089
        * resolve.c (resolve_fl_derived): Only return FAILURE if
        gfc_notify_std fails.

2009-05-10  Ian Lance Taylor  <iant@google.com>

        * gfortran.h (enum gfc_omp_sched_kind): New enum, broken out of
        gfc_omp_clauses.
        (enum gfc_omp_default_sharing): Likewise.
        * module.c (enum gfc_rsym_state): New enum, broken out of
        pointer_info.
        (enum gfc_wsym_state): Likewise.
        * parse.c (enum state_order): New enum, broken out of st_state.

2009-05-10  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/40018
        * trans-array.c (gfc_trans_array_constructor_value): Fold
        convert numeric constants.
        (gfc_build_constant_array_constructor): The same.

2009-05-10  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38863
        * trans-expr.c (gfc_conv_operator_assign): Remove function.
        * trans.h : Remove prototype for gfc_conv_operator_assign.
        * trans-stmt.c (gfc_conv_elemental_dependencies): Initialize
        derivde types with intent(out).
        (gfc_trans_call): Add mask, count1 and invert arguments. Add
        code to use mask for WHERE assignments.
        (gfc_trans_forall_1): Use new arguments for gfc_trans_call.
        (gfc_trans_where_assign): The gfc_symbol argument is replaced
        by the corresponding code. If this has a resolved_sym, then
        gfc_trans_call is called. The call to gfc_conv_operator_assign
        is removed.
        (gfc_trans_where_2): Change the last argument in the call to
        gfc_trans_where_assign.
        * trans-stmt.h : Modify prototype for gfc_trans_call.
        * trans.c (gfc_trans_code): Use new args for gfc_trans_call.

2009-05-08  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/39876
        * intrinsic.c (gfc_is_intrinsic): Do not add the EXTERNAL attribute if
        the symbol is a module procedure.

2009-05-08  Tobias Burnus  <burnus@net-b.de>

        * invoke.texi: Add do/recursion to the -fcheck= summary.

2009-05-07  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR fortran/38830
        * gfortran.texi: Document that we don't support variable FORMAT
        expressions.

2009-05-07  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR fortran/39576
        * error.c (error_print): Add missing break statement.

2009-05-07  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR fortran/36382
        * invoke.texi: Document that -fdollar-ok does not allow $ to be
        used in IMPLICIT statement.

2009-05-06  Janus Weil  <janus@gcc.gnu.org>
            Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/39630
        * decl.c (match_procedure_interface): New function to match the
        interface for a PROCEDURE statement.
        (match_procedure_decl): Call match_procedure_interface.
        (match_ppc_decl): New function to match the declaration of a
        procedure pointer component.
        (gfc_match_procedure):  Call match_ppc_decl.
        (match_binding_attributes): Add new argument 'ppc' and handle the
        POINTER attribute for procedure pointer components.
        (match_procedure_in_type,gfc_match_generic): Added new argument to
        match_binding_attributes.
        * dump-parse-tree.c (show_expr,show_components,show_code_node): Handle
        procedure pointer components.
        * expr.c (free_expr0,gfc_copy_expr,gfc_simplify_expr): Handle EXPR_PPC.
        (gfc_check_pointer_assign): Handle procedure pointer components, but no
        full checking yet.
        (is_proc_ptr_comp): New function to determine if an expression is a
        procedure pointer component.
        * gfortran.h (expr_t): Add EXPR_PPC.
        (symbol_attribute): Add new member 'proc_pointer_comp'.
        (gfc_component): Add new member 'formal'.
        (gfc_exec_op): Add EXEC_CALL_PPC.
        (gfc_get_default_type): Changed first argument.
        (is_proc_ptr_comp): Add prototype.
        (gfc_match_varspec): Add new argument.
        * interface.c (compare_actual_formal): Handle procedure pointer
        components.
        * match.c (gfc_match_pointer_assignment,match_typebound_call): Handle
        procedure pointer components.
        * module.c (mio_expr): Handle EXPR_PPC.
        * parse.c (parse_derived): Handle procedure pointer components.
        * primary.c (gfc_match_varspec): Add new argument 'ppc_arg' and handle
        procedure pointer components.
        (gfc_variable_attr): Handle procedure pointer components.
        (gfc_match_rvalue): Added new argument to gfc_match_varspec and changed
        first argument of gfc_get_default_type.
        (match_variable): Added new argument to gfc_match_varspec.
        * resolve.c (resolve_entries,set_type,resolve_fl_parameter): Changed
        first argument of gfc_get_default_type.
        (resolve_structure_cons,resolve_actual_arglist): Handle procedure
        pointer components.
        (resolve_ppc_call): New function to resolve a call to a procedure
        pointer component (subroutine).
        (resolve_expr_ppc): New function to resolve a call to a procedure
        pointer component (function).
        (gfc_resolve_expr): Handle EXPR_PPC.
        (resolve_code): Handle EXEC_CALL_PPC.
        (resolve_fl_derived): Copy the interface for a procedure pointer
        component.
        (resolve_symbol): Fix overlong line.
        * st.c (gfc_free_statement): Handle EXEC_CALL_PPC.
        * symbol.c (gfc_get_default_type): Changed first argument.
        (gfc_set_default_type): Changed first argument of gfc_get_default_type.
        (gfc_add_component): Initialize ts.type to BT_UNKNOWN.
        * trans.h (gfc_conv_function_call): Renamed.
        * trans.c (gfc_trans_code): Handle EXEC_CALL_PPC.
        * trans-expr.c (gfc_conv_component_ref): Ditto.
        (gfc_conv_function_val): Rename to 'conv_function_val', add new
        argument 'expr' and handle procedure pointer components.
        (gfc_conv_operator_assign): Renamed gfc_conv_function_val.
        (gfc_apply_interface_mapping_to_expr): Handle EXPR_PPC.
        (gfc_conv_function_call): Rename to 'gfc_conv_procedure_call', add new
        argument 'expr' and handle procedure pointer components.
        (gfc_get_proc_ptr_comp): New function to get the backend decl for a
        procedure pointer component.
        (gfc_conv_function_expr): Renamed gfc_conv_function_call.
        (gfc_conv_structure): Handle procedure pointer components.
        * trans-intrinsic.c (gfc_conv_intrinsic_funcall,
        conv_generic_with_optional_char_arg): Renamed gfc_conv_function_call.
        * trans-stmt.h (gfc_get_proc_ptr_comp): Add prototype.
        * trans-stmt.c (gfc_trans_call): Renamed gfc_conv_function_call.
        * trans-types.h (gfc_get_ppc_type): Add prototype.
        * trans-types.c (gfc_get_ppc_type): New function to build a tree node
        for a procedure pointer component.
        (gfc_get_derived_type): Handle procedure pointer components.

2009-05-06  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40041
        * resolve.c (resolve_symbol): Print no warning for implicitly
        typed intrinsic functions.

2009-05-05  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/39998
        * expr.c (gfc_check_pointer_assign): Check for statement functions and
        internal procedures in procedure pointer assignments.

2009-04-28  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/39946
        * resolve.c (resolve_symbol): Correctly copy the interface of a
        PROCEDURE statement if the interface involves a RESULT variable.

2009-04-28  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/39930
        PR fortran/39931
        * expr.c (gfc_check_pointer_assign): Correctly detect if the left hand
        side is a pointer.
        * parse.c (gfc_fixup_sibling_symbols): Don't check for ambiguity.

2009-04-28  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/39879
        * trans_expr.c (gfc_conv_procedure_call): Deep copy a derived
        type parentheses argument if it is a variable with allocatable
        components.

2009-04-27  Ian Lance Taylor  <iant@google.com>

        * trans-intrinsic.c (DEFINE_MATH_BUILTIN): Add casts to enum
        type.
        * trans-io.c (st_parameter_field): Add casts to enum type.

2009-04-26  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/39893
        fortran/data.c (gfc_assign_data_value): If the lvalue is an 
        assumed character length entity in a data statement, then 
        return FAILURE to prevent segmentation fault.

2009-04-26  Jakub Jelinek  <jakub@redhat.com>

        * trans-decl.c: Include pointer-set.h.
        (nonlocal_dummy_decl_pset, tree nonlocal_dummy_decls): New variables.
        (gfc_nonlocal_dummy_array_decl): New function.
        (gfc_get_symbol_decl): Call it for non-local dummy args with saved
        descriptor.
        (gfc_get_symbol_decl): Set DECL_BY_REFERENCE when needed.
        (gfc_generate_function_code): Initialize nonlocal_dummy_decl{s,_pset},
        chain it to outermost block's vars, destroy it afterwards.
        * Make-lang.in (trans-decl.o): Depend on pointer-set.h.

2009-04-25  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/39688
        * decl.c (gfc_match_import): Use 'sym->name' instead of 'name'.
        They differ if the symbol has been use-renamed.

2009-04-24  Ian Lance Taylor  <iant@google.com>

        * gfortran.h (enum gfc_symbol_type): New named enum type, broken
        out of struct gfc_symbol.
        (struct gfc_symbol): Use enum gfc_symbol_type.
        (enum gfc_array_ref_dimen_type): New named enum type, broken out
        of struct gfc_array_ref).
        (struct gfc_array_ref): Use enum gfc_array_ref_dimen_type.
        (mod_pointee_as): Update declaration.
        * decl.c (add_global_entry): Change type to enum gfc_symbol_type.
        (gfc_mod_pointee_as): Change return type to "match".
        * module.c (mio_array_ref): Add cast to enum type.
        (mio_symbol): Likewise.
        * resolve.c (resolve_global_procedure): Change type to enum
        gfc_symbol_type.
        * trans-io.c (gfc_build_st_parameter): Change type to unsigned
        int.

2009-04-24  Daniel Kraft  <d@domob.eu>

        * gfortran.h (gfc_get_typebound_proc): Removed as macro, now a function.
        (struct gfc_symtree): Moved "typebound" member inside union.
        (struct gfc_namespace): Add "tb_sym_root" as new symtree to sort out
        type-bound procedures there.
        (gfc_get_tbp_symtree): New procedure.
        * symbol.c (tentative_tbp_list): New global.
        (gfc_get_namespace): NULL new "tb_sym_root" member.
        (gfc_new_symtree): Removed initialization of "typebound" member.
        (gfc_undo_symbols): Process list of tentative tbp's.
        (gfc_commit_symbols): Ditto.
        (free_tb_tree): New method.
        (gfc_free_namespace): Call it.
        (gfc_get_typebound_proc): New method.
        (gfc_get_tbp_symtree): New method.
        (gfc_find_typebound_proc): Adapt to structural changes of gfc_symtree
        and gfc_namespace with regards to tbp's.
        * dump-parse-tree.c (show_typebound): Ditto.
        * primary.c (gfc_match_varspec): Ditto.  Don't reference tbp-symbol
        as it isn't a symbol any longer.
        * module.c (mio_typebound_symtree): Adapt to changes.
        (mio_typebound_proc): Ditto, create symtrees using "gfc_get_tbp_symtree"
        rather than "gfc_get_sym_tree".
        (mio_f2k_derived): Ditto.
        * decl.c (match_procedure_in_type): Ditto.
        (gfc_match_generic): Ditto.  Don't reference tbp-symbol.
        * resolve.c (check_typebound_override): Adapt to changes.
        (resolve_typebound_generic): Ditto.
        (resolve_typebound_procedures): Ditto.
        (ensure_not_abstract_walker): Ditto.
        (ensure_not_abstract): Ditto.
        (resolve_typebound_procedure): Ditto, ignore erraneous symbols (for
        instance, through removed tentative ones).
        * gfc-internals.texi (Type-bound procedures): Document changes.

2009-04-24  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/39861
        PR fortran/39864
        * symbol.c (gfc_copy_formal_args_intr): Set attr.flavor and attr.dummy
        for the formal arguments.

2009-04-21  Taras Glek <tglek@mozilla.com>

        * f95-lang.c: Update GTY annotations to new syntax.
        * trans-intrinsic.c: Likewise.
        * trans-io.c: Likewise.
        * trans.h: Likewise.

2009-04-22  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/39735
        * decl.c (add_hidden_procptr_result): Bugfix for procptr results.
        (match_procedure_decl): Set if_source.
        * expr.c (gfc_check_pointer_assign): Bugfix: Return after error.
        And: Check interface also for IFSRC_UNKNOWN (return type may be known).
        * gfortran.h (typedef enum ifsrc): Remove IFSRC_USAGE,
        add documentation. Rename copy_formal_args and copy_formal_args_intr.
        * interface.c (gfc_compare_interfaces): Check for return types,
        handle IFSRC_UNKNOWN.
        (compare_intr_interfaces,compare_actual_formal_intr): Obsolete, removed.
        (gfc_procedure_use): Modified handling of intrinsics.
        * intrinsic.c (add_functions): Bugfix for "dim".
        * resolve.c (resolve_intrinsic): New function to resolve intrinsics,
        which copies the interface from isym to sym.
        (resolve_procedure_expression,resolve_function): Use new function
        'resolve_intrinsic'.
        (resolve_symbol): Add function attribute for externals with return type
        and use new function 'resolve_intrinsic'.
        * symbol.c (ifsrc_types): Remove string for IFSRC_USAGE.
        (copy_formal_args): Renamed to gfc_copy_formal_args.
        (copy_formal_args_intr): Renamed to gfc_copy_formal_args_intr.
        * trans-const.c (gfc_conv_const_charlen): Handle cl==NULL.

2009-04-21  Joseph Myers  <joseph@codesourcery.com>

        * ChangeLog, ChangeLog-2002, ChangeLog-2003, ChangeLog-2004,
        ChangeLog-2005, ChangeLog-2006, ChangeLog-2007, ChangeLog-2008,
        ChangeLog.ptr, config-lang.in, ioparm.def, mathbuiltins.def: Add
        copyright and license notices.
        * ChangeLog, ChangeLog-2005, ChangeLog-2006, ChangeLog-2007,
        ChangeLog-2008: Correct dates.

2009-04-20  Tobias Burnus  <burnus@net-b.de>

        PR fortran/39811
        * scanner.c (load_line): Fix bogus "&" compile-time diagnostic.

2009-04-20  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/39800
        * resolve.c (is_sym_host_assoc): New function.
        (resolve_fl_derived): Call it when checking PRIVATE components
        of PUBLIC derived types.  Change gfc_error to a gfc_notify_std
        with std=f2003.
        (resolve_fl_namelist): Call it twice to check for host
        association.

2009-04-20  Ian Lance Taylor  <iant@google.com>

        * module.c (import_iso_c_binding_module): Add casts to enum type.
        * trans-intrinsic.c (gfc_conv_intrinsic_minmax): Change op to enum
        tree_code.
        (gfc_conv_intrinsic_anyall): Likewise.
        (gfc_conv_intrinsic_arith): Likewise.
        (gfc_conv_intrinsic_minmaxloc): Likewise.
        (gfc_conv_intrinsic_minmaxval): Likewise.
        (gfc_conv_intrinsic_bitop): Likewise.
        (gfc_conv_intrinsic_singlebitop): Likewise.
        (gfc_conv_intrinsic_strcmp): Likewise.

2009-04-20  Vasilis Liaskovitis  <vliaskov@gmail.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR fortran/35423
        * trans.h (OMPWS_WORKSHARE_FLAG, OMPWS_CURR_SINGLEUNIT,
        OMPWS_SCALARIZER_WS, OMPWS_NOWAIT): Define.
        (ompws_flags): New extern decl.
        * trans-array.c (gfc_trans_scalarized_loop_end): Build OMP_FOR
        for the outer dimension if ompws_flags allow it.
        * trans.c (gfc_generate_code): Clear ompws_flags.
        * trans-expr.c (gfc_trans_assignment_1): Allow worksharing
        array assignments inside of !$omp workshare.
        * trans-stmt.c (gfc_trans_where_3): Similarly for where statements
        and constructs.
        * trans-openmp.c (ompws_flags): New variable.
        (gfc_trans_omp_workshare): Rewritten.

2009-04-11  Daniel Kraft  <d@domob.eu>

        PR fortran/37746
        * gfortran.h (struct gfc_charlen): New field "passed_length" to store
        the actual passed string length for dummy arguments.
        * trans-decl.c (gfc_create_string_length): Formatting fixes and added
        assertion, moved a local variable into the innermost block it is needed.
        (create_function_arglist): Removed TODO about the check being
        implemented and initialize cl->passed_length here.
        (add_argument_checking): New method.
        (gfc_generate_function_code): Call the argument checking method.

2009-04-11  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/39692
        * symbol.c (check_conflict): Reject procedure pointers for -std=f95.

2009-04-11  Daniel Franke  <franke.daniel@gmail.com>

        * resolve.c (resolve_global_procedure): Enable whole-file checking for
        procedures that are declared later in the file.
        
2009-04-10  Paolo Bonzini  <bonzini@gnu.org>

        PR middle-end/39701
        * trans.c (gfc_allocate_with_status): Fix type mismatches
        on "pstat == 0".

2009-04-10  Daniel Franke  <franke.daniel@gmail.com>

        PR fortran/38709
        * expr.c (find_array_section): Leave early on zero-sized arrays.

2009-04-09  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/36704
        * decl.c (add_hidden_procptr_result): New function for handling
        procedure pointer return values by adding a hidden result variable.
        (variable_decl,match_procedure_decl,gfc_match_function_decl,
        gfc_match_subroutine,gfc_match_end,attr_decl1): Handle procedure pointer
        return values.
        * parse.c (parse_interface): Add EXTERNAL attribute only after
        FUNCTION/SUBROUTINE declaration is complete.
        * primary.c (replace_hidden_procptr_result): New function for replacing
        function symbol by hidden result variable.
        (gfc_match_rvalue,match_variable): Replace symbol by hidden result
        variable.
        * resolve.c (resolve_contained_fntype,resolve_function,resolve_variable,
        resolve_symbol): Allow for procedure pointer function results.
        (resolve_fl_procedure): Conflict detection moved here from
        'check_conflict'.
        * symbol.c (gfc_check_function_type): Allow for procedure pointer
        function results.
        (check_conflict): Move some conflict detection to resolution stage.
        * trans-types.c (gfc_sym_type,gfc_get_function_type): Handle hidden
        result variables.

2009-04-08  Jakub Jelinek  <jakub@redhat.com>

        * trans-types.c (gfc_init_types): Ensure gfc_integer_types doesn't
        contain TYPE_STRING_FLAG types.

2009-04-08  Janne Blomqvist  <jb@gcc.gnu.org>

        PR fortran/39670
        * invoke.texi (fdollar-ok): Fix typo.
        
2009-04-08  Daniel Franke  <franke.daniel@gmail.com>

        PR fortran/39670
        * invoke.texi (fdollar-ok): Clarify limitations.

2009-04-08  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38863
        * trans-array.c (gfc_trans_deferred_array): Return if this
        is a result variable.

2009-04-07  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/38152
        * trans-decl.c (gfc_get_symbol_decl): Correctly set decl location for
        procedure pointer decls.

2009-04-07  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/38290
        * expr.c (gfc_check_pointer_assign): Enable interface check for
        procedure pointers.
        * gfortran.h: Add copy_formal_args_intr.
        * interface.c (gfc_compare_interfaces): Call gfc_compare_intr_interfaces
        if second argument is an intrinsic.
        (compare_intr_interfaces): Correctly set attr.function, attr.subroutine
        and ts.
        (compare_parameter): Call gfc_compare_interfaces also for intrinsics.
        * resolve.c (resolve_specific_f0,resolve_specific_s0): Don't resolve
        intrinsic interfaces here. Must happen earlier.
        (resolve_symbol): Resolution of intrinsic interfaces moved here from
        resolve_specific_..., and formal args are now copied from intrinsic
        interfaces.
        * symbol.c (copy_formal_args_intr): New function to copy the formal
        arguments from an intinsic procedure.

2009-04-06  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38863
        * dependency.c (ref_same_as_full_array): New function.
        (gfc_dep_resolver): Call it.

2009-04-06  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/39414
        * decl.c (match_procedure_decl): Fix double declaration problems with
        PROCEDURE statements.
        * symbol.c (gfc_add_type): Ditto.

2009-04-06  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/36091
        * trans-array.c (gfc_conv_array_ref): If the symbol has the
        temporary attribute use the array_spec for the bounds.
        * gfortran.h : Add the temporary field to the structure
        'symbol_attribute'.
        * trans-stmt.c (forall_make_variable_temp): Set the symbol's
        temporary attribute.

2009-04-05  Daniel Franke  <franke.daniel@gmail.com>

        PR fortran/29458
        * trans-array.c (gfc_trans_array_constructor_value): Shadow
        implied do-loop variable to avoid spurious middle-end warnings.

2009-04-04  Tobias Burnus  <burnus@net-b.de>

        PR fortran/39577
        * trans-decl.c (gfc_generate_function_code): Move recursive
        check to the right position.

2009-04-04  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/37614
        * trans-common.c (translate_common): Do not offset the whole
        coomon block.

2009-04-03  Tobias Burnus  <burnus@net-b.de>

        PR fortran/39594
        * resolve.c (resolve_common_vars): Add FL_VARIABLE to symbol
        if it is not a procedure pointer.
        * primary.c (match_actual_arg): Ditto.

2009-03-31  Joseph Myers  <joseph@codesourcery.com>

        PR preprocessor/15638
        * cpp.c (cb_cpp_error): Handle CPP_DL_FATAL.

2009-03-30  Steven G. Kargl  <kargls@comcast.net>

        PR fortran/38389
        * trans-stmt.c(gfc_trans_allocate): Add translation of ERRMSG.
        (gfc_trans_deallocate): Add translation of ERRMSG.  Remove stale
        comments.  Minor whitespace cleanup.
        * resolve.c(is_scalar_expr_ptr): Whitespace cleanup.
        (resolve_deallocate_expr (gfc_expr *e): Update error message.
        (resolve_allocate_expr):  Remove dead code.  Update error message.
        Move error checking to ...
        (resolve_allocate_deallocate): ... here.  Add additional error
        checking for STAT, ERRMSG, and allocate-objects.
        * match.c(gfc_match_allocate,gfc_match_deallocate):  Parse ERRMSG.
        Check for redundant uses of STAT and ERRMSG.  Reword error message
        and add checking for pointer, allocatable, and proc_pointer attributes.

2009-03-30  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/22571
        PR fortran/26227
        PR fortran/24886
        * symbol.c : Add gfc_global_ns_list.
        * decl.c (add_global_entry): Set the namespace ('ns') field.
        * gfortran.h : Add the resolved field to gfc_namespace. Add the
        namespace ('ns') field to gfc_gsymbol.  Add flag_whole_file to
        gfc_option_t.  Add the prototype for gfc_free_dt_list.
        * lang.opt : Add the whole-file option.
        * invoke.texi : Document the whole-file option.
        * resolve.c (resolve_global_procedure): If the fwhole-file
        option is set, reorder gsymbols to ensure that translation is
        in the right order.  Resolve the gsymbol's namespace if that
        has not occurred and then check interfaces.
        (resolve_function): Move call to resolve_global_procedure.
        (resolve_call): The same.
        (resolve_codes): Store the current labels_obstack.
        (gfc_resolve) : Return if the namespace is already resolved.
        trans-decl.c (gfc_get_extern_function_decl): If the whole_file
        option is selected, use the backend_decl of a gsymbol, if it is
        available.
        parse.c (add_global_procedure, add_global_program): If the flag
        whole-file is set, add the namespace to the gsymbol.
        (gfc_parse_file): On -fwhole-file, put procedure namespaces on
        the global namespace list.  Rearrange to do resolution of all
        the procedures in a file, followed by their translation.
        * options.c (gfc_init_options): Add -fwhole-file.
        (gfc_handle_option): The same.

2009-03-30  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * f95-lang.c (gfc_init_builtin_functions): Define BUILT_IN_HUGE_VAL
        family of intrinsics instead of BUILT_IN_INF family.
        * trans-intrinsics.c (gfc_conv_intrinsic_nearest): Use
        BUILT_IN_HUGE_VAL instead of BUILT_IN_INF.

2009-03-30  Jakub Jelinek  <jakub@redhat.com>

        * trans-types.c (gfc_sym_type, gfc_return_by_reference): For
        sym->attr.result check sym->ns->proc_name->attr.is_bind_c.

2009-03-30  Joseph Myers  <joseph@codesourcery.com>

        PR rtl-optimization/323
        * options.c (gfc_post_options): Set
        flag_excess_precision_cmdline.  Give an error for
        -fexcess-precision=standard for processors where the option is
        significant.

2009-03-29  Joseph Myers  <joseph@codesourcery.com>

        PR preprocessor/34695
        * cpp.c (cb_cpp_error): New.
        (gfc_cpp_post_options): Don't set cpp_option->inhibit_warnings.
        Don't check cpp_errors (cpp_in).
        (gfc_cpp_init_0): Set cb->error.

2009-03-29  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/38823
        * gfortran.h: Add ARITH_PROHIBIT to arith enum.
        expr.c (gfc_match_init_expr): Add global variable init_flag to
        flag matching an initialization expression.
        (check_intrinsic_op): Move no longer reachable error message to ...
        * arith.c (arith_power): ... here.  Remove gfc_ prefix in
        gfc_arith_power.  Use init_flag.  Allow constant folding of x**y
        when y is REAL or COMPLEX.
        (eval_intrinsic): Remove restriction that y in x**y must be INTEGER
        for constant folding.
        * gfc_power: Update gfc_arith_power to arith_power

2009-03-29  Daniel Kraft  <d@domob.eu>

        PR fortran/37423
        * gfortran.h (struct gfc_typebound_proc): Added new flag "deferred" and
        added a comment explaining DEFERRED binding handling.
        * decl.c (match_binding_attributes): Really match DEFERRED attribute.
        (match_procedure_in_type): Really match PROCEDURE(interface) syntax
        and do some validity checks for DEFERRED and this construct.
        * module.c (binding_overriding): New string constant for DEFERRED.
        (mio_typebound_proc): Module-IO DEFERRED flag.
        * resolve.c (check_typebound_override): Ensure that a non-DEFERRED
        binding is not overridden by a DEFERRED one.
        (resolve_typebound_procedure): Allow abstract interfaces as targets
        for DEFERRED bindings.
        (ensure_not_abstract_walker), (ensure_not_abstract): New methods.
        (resolve_fl_derived): Use new "ensure_not_abstract" method for
        non-ABSTRACT types extending ABSTRACT ones to ensure each DEFERRED
        binding is overridden.
        (check_typebound_baseobject): New method.
        (resolve_compcall), (resolve_typebound_call): Check base-object of
        the type-bound procedure call.
        * gfc-internals.texi (Type-bound procedures): Document a little bit
        about internal handling of DEFERRED bindings.

2009-03-29  Tobias Schlüter  <tobi@gcc.gnu.org>

        PR fortran/38507
        * gfortran.h (gfc_st_label): Fix comment.
        (gfc_exec_op): Add statement code EXEC_END_BLOCK for end of block.
        * parse.c (accept_statement): Use EXEC_END_BLOCK for END IF and
        END SELECT with labels.
        (check_do_closure): Fix formatting.
        (parse_do_block): Fix typo in error message.
        * resolve.c (code_stack): Remove tail member.  Update comment to
        new use of reachable_labels.
        (reachable_labels): Rename to ...
        (find_reachable_labels): ... this.  Overhaul.  Update preceding
        comment.
        (resolve_branch): Fix comment preceding function.  Rewrite.
        (resolve_code): Update call to find_reachable_labels.  Add code to
        deal with EXEC_END_BLOCK.
        * st.c (gfc_free_statement): Add code to deal with EXEC_END_BLOCK.
        Add 2009 to copyright years.
        * trans.c (gfc_trans_code): Likewise on both counts.

2009-03-31  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38917
        * expr.c (gfc_check_assign): Allow pointer components when
        checking for NULL.

        PR fortran/38918
        * resolve.c (check_data_variable): Treat pointer arrays with
        scalars.

2009-03-31  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38915
        * trans-expr.c (gfc_trans_assignment_1): Ensure temporaries
        have a string_length.

2009-03-28  Tobias Burnus  <burnus@net-b.de>

        PR fortran/34656
        * trans-stmt.c (gfc_trans_simple_do, gfc_trans_do):
        Add GFC_RTCHECK_DO support.
        * option.c (gfc_handle_runtime_check_option): Enable GFC_RTCHECK_DO.
        * invoke.texi (-fcheck): Document "do" option.

2009-03-28  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38538
        * trans-array.c (get_elemental_fcn_charlen): Remove.
        (get_array_charlen): New function to replace previous.

2009-03-28  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38765
        * parse.c (parse_derived): Do not break on finding pointer,
        allocatable or private components.

2009-03-28  Tobias Burnus  <burnus@net-b.de>

        PR fortran/32626
        * option.c (gfc_handle_runtime_check_option): Enable recursion check.
        * trans-decl.c (gfc_generate_function_code): Add recursion check.
        * invoke.texi (-fcheck): Add recursive option.

2009-03-28  Tobias Burnus  <burnus@net-b.de>

        PR fortran/38432
        * resolve.c (gfc_resolve_iterator): Add zero-loop warning.

2009-03-28  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
            Paul Thomas  <pault@gcc.gnu.org>
            Tobias Burnus  <burnus@net-b.de>

        * gfortran.h (gfc_option_t): Add rtcheck.
        * lang.opt: New option -fcheck.
        * libgfortran.h: Add GFC_RTCHECK_* constants.
        * invoke.texi: Document -fcheck.
        * options.c (gfc_handle_runtime_check_option): New function.
        (gfc_init_options,gfc_post_options,gfc_handle_option):
        Add -fcheck option.

2009-03-27  Richard Guenther  <rguenther@suse.de>

        * trans-array.c (gfc_conv_descriptor_data_addr): Use
        gfc_build_addr_expr instead of build_fold_addr_expr.
        (gfc_trans_allocate_array_storage, gfc_trans_array_constructor_value,
        gfc_trans_constant_array_constructor, gfc_conv_array_data,
        gfc_conv_expr_descriptor, gfc_conv_array_parameter): Likewise.
        * trans-expr.c (gfc_conv_missing_dummy, gfc_conv_variable,
        gfc_conv_function_val, gfc_conv_operator_assign,
        gfc_conv_subref_array_arg, gfc_conv_function_call,
        gfc_conv_expr_reference, gfc_trans_scalar_assign): Likewise.
        * trans-intrinsic.c (gfc_conv_intrinsic_exponent,
        gfc_conv_intrinsic_ctime, gfc_conv_intrinsic_fdate,
        gfc_conv_intrinsic_ttynam, gfc_conv_intrinsic_minmax_char,
        gfc_conv_intrinsic_fraction, gfc_conv_intrinsic_spacing,
        gfc_conv_intrinsic_rrspacing, gfc_conv_intrinsic_set_exponent,
        gfc_conv_intrinsic_array_transfer, gfc_conv_intrinsic_transfer,
        gfc_conv_intrinsic_si_kind, gfc_conv_intrinsic_trim): Likewise.
        * trans-io.c (gfc_trans_io_runtime_check, set_parameter_ref,
        gfc_convert_array_to_string, gfc_trans_open, gfc_trans_close,
        build_filepos, gfc_trans_inquire, gfc_trans_wait,
        nml_get_addr_expr, transfer_namelist_element, build_dt,
        gfc_trans_dt_end, transfer_array_component, transfer_expr,
        transfer_array_desc, gfc_trans_transfer): Likewise.
        * trans-stmt.c (gfc_trans_allocate, gfc_trans_deallocate): Likewise.
        * trans.c (gfc_build_addr_expr): Mark the base of the address
        TREE_ADDRESSABLE.

2009-03-27  Tobias Burnus  <burnus@net-b.de>

        * gfortran.h (enum init_local_real.): Add GFC_INIT_REAL_SNAN.
        (gfc_expr): Add is_snan.
        * trans-const.c (gfc_conv_mpfr_to_tree): Support SNaN.
        (gfc_conv_constant_to_tree): Update call to gfc_conv_mpfr_to_tree.
        * trans-const.h (gfc_conv_mpfr_to_tree): Update prototype.
        * resolve.c (build_default_init_expr): Update call.
        * target-memory.c (encode_float): Ditto.
        * trans-intrinsic.c (gfc_conv_intrinsic_aint,gfc_conv_intrinsic_mod,

2009-03-18  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * lang.opt: Unify help texts for -I, -Wconversion, -d, -fopenmp,
        and -fpreprocessed.

2009-03-06  Alexandre Oliva <aoliva@redhat.com>

        * simplify.c (gfc_simplify_transfer): Zero-initialize the
        buffer.

2009-02-27  Tobias Burnus  <burnus@net-b.de>

        PR fortran/39309
        * module.c (read_md5_from_module_file): Add missing quote.

2009-02-27  Tobias Burnus  <burnus@net-b.de>

        PR fortran/39309
        * module.c (read_md5_from_module_file): Include mod version
        in had-changed test.

2009-02-26  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/39295
        * interface.c (compare_type_rank_if): Return 1 if the symbols
        are the same and deal with external procedures where one is
        identified to be a function or subroutine by usage but the
        other is not.

2009-02-26  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/39292
        * trans-array.c (gfc_conv_array_initializer): Convert all
        expressions rather than ICEing.

2009-02-21  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/38914
        * array.c (ref_dimen_size):  Rename to gfc_ref_dimen_size,
        make global.  Change function name in error messages.
        (ref_size):  Change ref_dimen_size to gfc_ref_dimen_size.
        (gfc_array_ref_shape):  Likewise.
        * gfortran.h:  Add prototype for gfc_ref_dimen_size.
        * simplify.c (simplify_bound_dim):  Add ref argument.
        If the reference isn't a full array, return one for
        the lower bound and the extent for the upper bound.
        (simplify_bound):  For array sections, take as from the
        argument.  Add reference to all to simplify_bound_dim.

2009-02-19  Daniel Franke  <franke.daniel@gmail.com>

        * scanner.c (load_line): At end of line, skip '\r' without setting
        the truncation flag.

2009-02-18  Daniel Kraft  <d@domob.eu>

        * gfortran.texi: New chapter about compiler characteristics.
        (Compiler Characteristics): Document KIND type parameters here.

2009-02-18  Tobias Burnus  <burnus@net-b.de>

        * intrinsic.texi (MALLOC): Make example more portable.

2009-02-13  Mikael Morin  <mikael.morin@tele2.fr>

        PR fortran/38259
        * module.c (gfc_dump_module,gfc_use_module): Add module
        version number.

2009-02-13  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/36703
        PR fortran/36528
        * trans-expr.c (gfc_conv_function_val): Stabilize Cray-pointer
        function references to ensure that a valid expression is used.
        (gfc_conv_function_call): Pass Cray pointers to procedures.

2009-02-03  Jakub Jelinek  <jakub@redhat.com>

        * gfortranspec.c (lang_specific_driver): Update copyright notice
        dates.

2009-01-28  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38852
        PR fortran/39006
        * trans-intrinsic.c (gfc_conv_intrinsic_bound): Use the array
        descriptor ubound for UBOUND, when the array lbound == 1.

2009-01-27  Daniel Kraft  <d@domob.eu>

        PR fortran/38883
        * trans-stmt.c (gfc_conv_elemental_dependencies):  Create temporary
        for the real type needed to make it work for subcomponent-references.

2009-01-21  Daniel Kraft  <d@domob.eu>

        * trans-stmt.c (gfc_conv_elemental_dependencies):  Cleaned up comment.

2009-01-20  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38907
        * resolve.c (check_host_association): Remove the matching to
        correct an incorrect host association and use manipulation of
        the expression instead.

2009-01-20  Tobias Burnus  <burnus@net-b.de>

        * invoke.texi (RANGE): RANGE also takes INTEGER arguments.

2009-01-19  Mikael Morin  <mikael.morin@tele2.fr>

        PR fortran/38859
        * simplify.c (simplify_bound): Don't use array specification
        if variable or component has subsequent references.

2009-01-17  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38657
        * module.c (write_common_0): Add argument 'this_module' and
        check that non-use associated common blocks are written first.
        (write_common): Call write_common_0 twice, once with true and
        then with false.

2009-01-17  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/34955
        * trans-intrinsic.c (gfc_conv_intrinsic_array_transfer): Has
        been absorbed into gfc_conv_intrinsic_transfer. All
        references to it in trans-intrinsic.c have been changed
        accordingly.  PR fixed by using a temporary for scalar
        character transfer, when the source is shorter than the
        destination.

2009-01-17  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38657
        * module.c (write_common_0): Revert patch of 2009-01-05.

2009-01-16  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/38152
        * expr.c (gfc_check_pointer_assign): Allow use-associated procedure
        pointers as lvalue.
        * trans-decl.c (get_proc_pointer_decl,gfc_create_module_variable):
        Enable procedure pointers as module variables.

2009-01-14  Steven G. Kargl  <kargl@gcc.gnu.org>

        * ChangeLog-2007: Clean out svn merge droppings.

2009-01-10  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38763
        * target-memory.c (encode_derived): Encode NULL.

2009-01-10  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38765
        * resolve.c (check_host_association): Use the symtree name to
        search for a potential contained procedure, since this is the
        name by which it would be referenced.

2009-01-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/38220
        * interface.c (gfc_procedure_use):  Don't warn about functions
        from ISO_C_BINDING.
        * symbol.c (generate_isocbinding_symbol):  Mark c_loc and
        c_funloc as pure.

2009-01-05  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38657
        * module.c (write_common_0): Use the name of the symtree rather
        than the common block, to determine if the common has been
        written.

2009-01-05  Daniel Franke  <franke.daniel@gmail.com>

        PR fortran/37159
        * check.c (gfc_check_random_seed): Added size check for GET
        dummy argument, reworded error messages to follow common pattern.

2009-01-05  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/38672
        * trans-types.c (gfc_get_derived_type):  Check for the
        presence of derived->ns->proc_name before
        accessing derived->ns->proc_name->attr.flavor .
        * resolve.c (resolve_symbol):  Likewise.

2009-01-05  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38665
        * gfortran.h : Add bit to gfc_expr 'user_operator'
        * interface.c (gfc_extend_expr): Set the above if the operator
        is substituted by a function. 
        * resolve.c (check_host_association): Return if above is set.

2009-01-04  Mikael Morin  <mikael.morin@tele2.fr>

        PR fortran/35681
        * ChangeLog-2008: Fix function name.

        PR fortran/38487
        * dependency.c (gfc_check_argument_var_dependency):
        Move the check for pointerness inside the if block
        so that it doesn't affect the return value.

        PR fortran/38669
        * trans-stmt.c (gfc_trans_call):
        Add the dependency code after the loop bounds calculation one.

2009-01-04  Daniel Franke  <franke.daniel@gmail.com>

        * intrinsic.c (do_simplify): Removed already implemented TODO.

2009-01-04  Daniel Franke  <franke.daniel@gmail.com>

        PR fortran/38718
        * simplify.c (gfc_simplify_merge): New.
        * intrinsic.h (gfc_simplify_merge): New prototype.
        * intrinsic.c (add_functions): Added simplification for MERGE.

2009-01-04  Mikael Morin  <mikael.morin@tele2.fr>

        PR fortran/38536
        * gfortran.h (gfc_is_data_pointer): Added prototype
        * resolve.c (gfc_iso_c_func_interface):
        Use gfc_is_data_pointer to test for pointer attribute.
        * dependency.c (gfc_is_data_pointer):
        Support pointer-returning functions.

2009-01-03  Daniel Franke  <franke.daniel@gmail.com>

        * symbol.c (save_symbol): Don't SAVE function results.

2009-01-03  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/38594
        * resolve.c (resolve_call): When searching for proper host
        association, use symtree rather than symbol.  For everything
        except generic subroutines, substitute the symtree in the call
        rather than the symbol.

\f
Copyright (C) 2009 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
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