* arith.c (arith_power): Use mpc_pow_z.

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

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
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