re PR fortran/78300 ([OOP] Failure to compile a F03 code with an optional dummy proce...

[gcc.git] / gcc / fortran / ChangeLog

2016-11-14  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/78300
        * resolve.c (resolve_procedure_interface): Properly handle CLASS-valued
        function results.

2016-11-13  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/60952
        * decl.c (match_procedure_in_type): Apply the FL_PROCEDURE attribute
        to the target procedure.

2016-11-13  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/66366
        * resolve.c (resolve_component): Move check for C437
        to ...
        * decl.c (build_struct): ... here. Fix indentation.

2016-11-12  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/77501
        * class.c (gfc_find_typebound_intrinsic_op): Remove an unnecessary
        assert and nullification.
        * decl.c (gfc_match_decl_type_spec): Use gfc_get_tbp_symtree,
        fix indentation.
        (gfc_match_generic): Remove an unnecessary assert.
        Use gfc_get_tbp_symtree to avoid ICE.

2016-11-10  Fritz O. Reese <fritzoreese@gmail.com>

        PR fortran/78277
        * gcc/fortran/decl.c (gfc_match_data_decl): Gracefully handle bad
        anonymous structure declarations.

2016-11-10  Fritz O. Reese <fritzoreese@gmail.com>

        * decl.c (get_struct_decl, gfc_match_map, gfc_match_union): Fix
        whitespace.
        * interface.c (gfc_compare_union_types): Likewise.

2016-11-10  Jakub Jelinek  <jakub@redhat.com>

        * cpp.c (cpp_define_builtins): Define _OPENMP to 201511 instead
        of 201307.
        * gfortran.texi: Mention partial OpenMP 4.5 support.
        * intrinsic.texi: Update for OpenMP 4.5.

        * openmp.c (gfc_free_omp_clauses): Free critical_name, grainsize,
        hint, num_tasks, priority and if_exprs.
        (gfc_match_omp_to_link, gfc_match_omp_depend_sink): New functions.
        (enum omp_mask1, enum omp_mask2): New enums.
        Change all OMP_CLAUSE_* defines into enum values, and change their
        values from ((uint64_t) 1 << bit) to just bit.
        (omp_mask, omp_inv_mask): New classes.  Add ctors and operators.
        (gfc_match_omp_clauses): Change mask argument from uint64_t to
        const omp_mask.  Assert OMP_MASK1_LAST and OMP_MASK2_LAST are
        at most 64.  Move delete clause handling to where it
        alphabetically belongs.  Parse defaultmap, grainsize, hint,
        is_device_ptr, nogroup, nowait, num_tasks, priority, simd, threads
        and use_device_ptr clauses.  Parse if clause modifier.  Parse map
        clause always modifier, and release and delete kinds.  Parse ordered
        clause with argument.  Parse schedule clause modifiers.  Differentiate
        device clause parsing based on openacc flag.  Guard link clause
        parsing with openacc flag.  Add support for parsing
        linear clause modifiers.  Parse depend(source) and depend(sink: ...).
        Use gfc_match_omp_to_link for to and link clauses in declare target
        construct.
        (match_acc): Change mask type from uint64_t to const omp_mask.
        (OMP_SINGLE_CLAUSES, OMP_ORDERED_CLAUSES,
        OMP_DECLARE_TARGET_CLAUSES, OMP_TASKLOOP_CLAUSES,
        OMP_TARGET_ENTER_DATA_CLAUSES, OMP_TARGET_EXIT_DATA_CLAUSES): Define.
        (OACC_PARALLEL_CLAUSES, OACC_KERNELS_CLAUSES, OACC_DATA_CLAUSES,
        OACC_LOOP_CLAUSES, OACC_HOST_DATA_CLAUSES, OACC_DECLARE_CLAUSES,
        OACC_ENTER_DATA_CLAUSES, OACC_EXIT_DATA_CLAUSES, OACC_WAIT_CLAUSES,
        OACC_ROUTINE_CLAUSES, OMP_PARALLEL_CLAUSES, OMP_DECLARE_SIMD_CLAUSES,
        OMP_SECTIONS_CLAUSES, OMP_TEAMS_CLAUSES, OMP_DISTRIBUTE_CLAUSES):
        Replace first or only OMP_CLAUSE_* value in bitset with
        omp_mask (OMP_CLAUSE_*).
        (OMP_DO_CLAUSES): Likewise.  Add OMP_CLAUSE_LINEAR.
        (OMP_SIMD_CLAUSES): Replace first or only OMP_CLAUSE_* value in
        bitset with omp_mask (OMP_CLAUSE_*).  Add OMP_CLAUSE_SIMDLEN.
        (OACC_UPDATE_CLAUSES): Replace first or only OMP_CLAUSE_* value in
        bitset with omp_mask (OMP_CLAUSE_*).  Replace OMP_CLAUSE_OACC_DEVICE
        with OMP_CLAUSE_DEVICE.
        (OMP_TASK_CLAUSES): Replace first or only OMP_CLAUSE_* value in
        bitset with omp_mask (OMP_CLAUSE_*).  Add OMP_CLAUSE_PRIORITY.
        (OMP_TARGET_CLAUSES): Replace first or only OMP_CLAUSE_* value in
        bitset with omp_mask (OMP_CLAUSE_*).  Add OMP_CLAUSE_DEPEND,
        OMP_CLAUSE_NOWAIT, OMP_CLAUSE_PRIVATE, OMP_CLAUSE_FIRSTPRIVATE,
        OMP_CLAUSE_DEFAULTMAP and OMP_CLAUSE_IS_DEVICE_PTR.
        (OMP_TARGET_DATA_CLAUSES): Replace first or only OMP_CLAUSE_* value in
        bitset with omp_mask (OMP_CLAUSE_*).  Add OMP_CLAUSE_USE_DEVICE_PTR.
        (OMP_TARGET_UPDATE_CLAUSES): Replace first or only OMP_CLAUSE_* value
        in bitset with omp_mask (OMP_CLAUSE_*).  Add OMP_CLAUSE_DEPEND and
        OMP_CLAUSE_NOWAIT.
        (match_omp): Change mask argument from unsigned int to
        const omp_mask.
        (gfc_match_omp_critical): Parse optional clauses and use omp_clauses
        union member instead of omp_name.
        (gfc_match_omp_end_critical): New function.
        (gfc_match_omp_distribute_parallel_do): Remove ordered and linear
        clauses from the mask.
        (gfc_match_omp_distribute_parallel_do_simd): Use
        & ~(omp_mask (OMP_CLAUSE_*)) instead of & ~OMP_CLAUSE_*.
        (gfc_match_omp_target_teams_distribute_parallel_do_simd): Likewise.
        (gfc_match_omp_teams_distribute_parallel_do_simd): Likewise.
        (gfc_match_omp_do_simd): Likewise.  Don't remove ordered clause from
        the mask.
        (gfc_match_omp_parallel_do_simd): Likewise.
        (gfc_match_omp_target_teams_distribute_parallel_do): Likewise.
        (gfc_match_omp_teams_distribute_parallel_do): Likewise.
        (gfc_match_omp_declare_simd): If not using the form with
        (proc-name), require space before first clause.  Make (proc-name)
        optional.  If not present, set proc_name to NULL.
        (gfc_match_omp_declare_target): Rewritten for OpenMP 4.5.
        (gfc_match_omp_single): Use OMP_SINGLE_CLAUSES.
        (gfc_match_omp_task, gfc_match_omp_taskwait, gfc_match_omp_taskyield):
        Move around to where they belong alphabetically.
        (gfc_match_omp_target_enter_data, gfc_match_omp_target_exit_data,
        gfc_match_omp_target_parallel, gfc_match_omp_target_parallel_do,
        gfc_match_omp_target_parallel_do_simd, gfc_match_omp_target_simd,
        gfc_match_omp_taskloop, gfc_match_omp_taskloop_simd):
        New functions.
        (gfc_match_omp_ordered): Parse clauses.
        (gfc_match_omp_ordered_depend): New function.
        (gfc_match_omp_cancel, gfc_match_omp_end_single): Use
        omp_mask (OMP_CLAUSE_*) instead of OMP_CLAUSE_*.
        (resolve_oacc_scalar_int_expr): Renamed to ...
        (resolve_scalar_int_expr): ... this.  Fix up formatting.
        (resolve_oacc_positive_int_expr): Renamed to ...
        (resolve_positive_int_expr): ... this.  Fix up formatting.
        (resolve_nonnegative_int_expr): New function.
        (resolve_omp_clauses): Adjust callers, use the above functions
        even for OpenMP clauses, add handling of new OpenMP 4.5 clauses.
        Require orderedc >= collapse if specified. Handle depend(sink:)
        and depend(source) restrictions.  Disallow linear clause when
        orderedc is non-zero.  Diagnose linear clause modifiers when not in
        declare simd.  Only check for integer type if ref modifier
        is not used.  Remove diagnostics for required VALUE attribute.
        Diagnose VALUE attribute with ref or uval modifiers.  Allow
        non-constant linear-step, if it is a dummy argument alone and is
        mentioned in uniform clause.  Diagnose map kinds not allowed
        for various constructs.  Diagnose target {enter ,exit ,}data without
        any map clauses.  Add dummy OMP_LIST_IS_DEVICE_PTR and
        OMP_LIST_USE_DEVICE_PTR cases.
        (gfc_resolve_omp_do_blocks): Set omp_current_do_collapse to orderedc
        if non-zero.
        (gfc_resolve_omp_parallel_blocks): Handle new OpenMP 4.5 constructs,
        replace underscores with spaces in a few construct names.
        (resolve_omp_do): Set collapse to orderedc if non-zero.  Handle new
        OpenMP 4.5 constructs.
        (resolve_oacc_loop_blocks): Call resolve_positive_int_expr instead
        of resolve_oacc_positive_int_expr.
        (gfc_resolve_omp_directive): Handle new OpenMP 4.5 constructs.
        (gfc_resolve_omp_declare_simd): Allow ods->proc_name to be NULL.
        * trans-openmp.c (gfc_omp_scalar_p): New function.
        (doacross_steps): New variable.
        (gfc_trans_omp_clauses): Handle new OpenMP 4.5 clauses and new clause
        modifiers.
        (gfc_trans_omp_critical): Adjust EXEC_OMP_CRITICAL handling.
        (gfc_trans_omp_do): Handle doacross loops.  Clear sched_simd flag.
        Handle EXEC_OMP_TASKLOOP.
        (gfc_trans_omp_ordered): Translate omp clauses, allow NULL
        code->block.
        (GFC_OMP_SPLIT_TASKLOOP, GFC_OMP_MASK_TASKLOOP): New enum constants.
        (gfc_split_omp_clauses): Copy orderedc together with ordered.  Change
        firstprivate and lastprivate handling for OpenMP 4.5.
        Handle EXEC_OMP_TARGET_SIMD, EXEC_OMP_TARGET_PARALLEL{,_DO,_DO_SIMD}
        and EXEC_OMP_TASKLOOP{,_SIMD}.  Add handling for new OpenMP 4.5
        clauses and clause modifiers and handle if clause without/with
        modifiers.
        (gfc_trans_omp_teams): Add omp_clauses argument, add it to other
        teams clauses.  Don't wrap into OMP_TEAMS if -fopenmp-simd.
        (gfc_trans_omp_target): For -fopenmp, translate num_teams and
        thread_limit clauses on combined target teams early and pass to
        gfc_trans_omp_teams.  Set OMP_TARGET_COMBINED if needed.
        Handle EXEC_OMP_TARGET_PARALLEL{,_DO,_DO_SIMD} and
        EXEC_OMP_TARGET_SIMD.
        (gfc_trans_omp_taskloop, gfc_trans_omp_target_enter_data,
        gfc_trans_omp_target_exit_data): New functions.
        (gfc_trans_omp_directive): Handle EXEC_OMP_TARGET_{ENTER,EXIT}_DATA
        EXEC_OMP_TASKLOOP{,_SIMD}, EXEC_OMP_TARGET_PARALLEL{,_DO,_DO_SIMD}
        and EXEC_OMP_TARGET_SIMD.  Adjust gfc_trans_omp_teams caller.
        * symbol.c (check_conflict): Handle omp_declare_target_link.
        (gfc_add_omp_declare_target_link): New function.
        (gfc_copy_attr): Copy omp_declare_target_link.
        * dump-parse-tree.c (show_omp_namelist): Handle OMP_DEPEND_SINK_FIRST
        depend_op.  Print linear clause modifiers.
        (show_omp_clauses): Adjust for OpenMP 4.5 clause changes.
        (show_omp_node): Print clauses for EXEC_OMP_ORDERED.  Allow NULL
        c->block for EXEC_OMP_ORDERED.  Formatting fixes.  Adjust handling of
        EXEC_OMP_CRITICAL, handle new OpenMP 4.5 constructs and some
        forgotten OpenMP 4.0 constructs.
        (show_code_node): Handle new OpenMP 4.5 constructs and some forgotten
        OpenMP 4.0 constructs.
        * gfortran.h (symbol_attribute): Add omp_declare_target_link bitfield.
        (struct gfc_omp_namelist): Add u.common and u.linear_op fields.
        (struct gfc_common_head): Change omp_declare_target into bitfield.
        Add omp_declare_target_link bitfield.
        (gfc_add_omp_declare_target_link): New prototype.
        (enum gfc_statement): Add ST_OMP_TARGET_PARALLEL,
        ST_OMP_END_TARGET_PARALLEL, ST_OMP_TARGET_PARALLEL_DO,
        ST_OMP_END_TARGET_PARALLEL_DO, ST_OMP_TARGET_PARALLEL_DO_SIMD,
        ST_OMP_END_TARGET_PARALLEL_DO_SIMD, ST_OMP_TARGET_ENTER_DATA,
        ST_OMP_TARGET_EXIT_DATA, ST_OMP_TARGET_SIMD, ST_OMP_END_TARGET_SIMD,
        ST_OMP_TASKLOOP, ST_OMP_END_TASKLOOP, ST_OMP_TASKLOOP_SIMD,
        ST_OMP_END_TASKLOOP_SIMD and ST_OMP_ORDERED_DEPEND.
        (enum gfc_omp_depend_op): Add OMP_DEPEND_SINK_FIRST and
        OMP_DEPEND_SINK.
        (enum gfc_omp_linear_op): New.
        (struct gfc_omp_clauses): Add critical_name, depend_source,
        orderedc, defaultmap, nogroup, sched_simd, sched_monotonic,
        sched_nonmonotonic, simd, threads, grainsize, hint, num_tasks,
        priority and if_exprs fields.
        (enum gfc_exec_op): Add EXEC_OMP_END_CRITICAL,
        EXEC_OMP_TARGET_ENTER_DATA, EXEC_OMP_TARGET_EXIT_DATA,
        EXEC_OMP_TARGET_PARALLEL, EXEC_OMP_TARGET_PARALLEL_DO,
        EXEC_OMP_TARGET_PARALLEL_DO_SIMD, EXEC_OMP_TARGET_SIMD,
        EXEC_OMP_TASKLOOP, EXEC_OMP_TASKLOOP_SIMD.
        (enum gfc_omp_map_op): Add OMP_MAP_RELEASE,
        OMP_MAP_ALWAYS_TO, OMP_MAP_ALWAYS_FROM and OMP_MAP_ALWAYS_TOFROM.
        (OMP_LIST_IS_DEVICE_PTR, OMP_LIST_USE_DEVICE_PTR): New.
        (enum gfc_omp_if_kind): New.
        * module.c (enum ab_attribute): Add AB_OMP_DECLARE_TARGET_LINK.
        (attr_bits): Add AB_OMP_DECLARE_TARGET_LINK entry.
        (mio_symbol_attribute): Save and restore omp_declare_target_link bit.
        * trans.h (gfc_omp_scalar_p): New prototype.
        * frontend-passes.c (gfc_code_walker): Handle new OpenMP 4.5
        expressions.
        * trans.c (trans_code): Handle new OpenMP 4.5 constructs.
        * resolve.c (gfc_resolve_blocks): Likewise.
        (gfc_resolve_code): Likewise.
        * f95-lang.c (LANG_HOOKS_OMP_SCALAR_P): Redefine to gfc_omp_scalar_p.
        (gfc_attribute_table): Add "omp declare target link".
        * st.c (gfc_free_statement): Handle EXEC_OMP_END_CRITICAL like
        EXEC_OMP_CRITICAL before, free clauses for EXEC_OMP_CRITICAL
        and new OpenMP 4.5 constructs.  Free omp clauses even for
        EXEC_OMP_ORDERED.
        * match.c (match_exit_cycle): Rename collapse variable to count,
        set it to orderedc if non-zero, instead of collapse.
        * trans-decl.c (add_attributes_to_decl): Add "omp declare target link"
        instead of "omp declare target" for omp_declare_target_link.
        * trans-common.c (build_common_decl): Likewise.
        * match.h (gfc_match_omp_target_enter_data,
        gfc_match_omp_target_exit_data, gfc_match_omp_target_parallel,
        gfc_match_omp_target_parallel_do,
        gfc_match_omp_target_parallel_do_simd, gfc_match_omp_target_simd,
        gfc_match_omp_taskloop, gfc_match_omp_taskloop_simd,
        gfc_match_omp_end_critical, gfc_match_omp_ordered_depend): New
        prototypes.
        * parse.c (decode_omp_directive): Use gfc_match_omp_end_critical
        instead of gfc_match_omp_critical for !$omp end critical.
        Handle new OpenMP 4.5 constructs.  If ordered directive has
        depend clause as the first of the clauses, use
        gfc_match_omp_ordered_depend and ST_OMP_ORDERED_DEPEND instead of
        gfc_match_omp_ordered and ST_OMP_ORDERED.
        (case_executable): Add ST_OMP_TARGET_ENTER_DATA,
        ST_OMP_TARGET_EXIT_DATA and ST_OMP_ORDERED_DEPEND cases.
        (case_exec_markers): Add ST_OMP_TARGET_PARALLEL,
        ST_OMP_TARGET_PARALLEL_DO, ST_OMP_TARGET_PARALLEL_DO_SIMD,
        ST_OMP_TARGET_SIMD, ST_OMP_TASKLOOP and ST_OMP_TASKLOOP_SIMD cases.
        (gfc_ascii_statement): Handle new OpenMP 4.5 constructs.
        (parse_omp_do): Handle ST_OMP_TARGET_PARALLEL_DO,
        ST_OMP_TARGET_PARALLEL_DO_SIMD, ST_OMP_TASKLOOP and
        ST_OMP_TASKLOOP_SIMD.
        (parse_omp_structured_block): Handle EXEC_OMP_END_CRITICAL instead
        of EXEC_OMP_CRITICAL, adjust for EXEC_OMP_CRITICAL having omp clauses
        now.
        (parse_executable): Handle ST_OMP_TARGET_PARALLEL,
        ST_OMP_TARGET_PARALLEL_DO, ST_OMP_TARGET_PARALLEL_DO_SIMD,
        ST_OMP_TASKLOOP and ST_OMP_TASKLOOP_SIMD.

2016-11-09  Mikael Morin  <mikael@gcc.gnu.org>
            Janus Weil  <janus@gcc.gnu.org>

        PR fortran/46459
        * interface.c (compare_actual_formal): Add safety checks to avoid ICE.

2016-11-09  Fritz O. Reese <fritzoreese@gmail.com>

        PR fortran/78259
        * trans-expr.c (gfc_trans_subcomponent_assign): Guard against NULL
        values.

2016-11-09  Steven G. Kargl  <kargl@gcc.gnu.org>
            Janus Weil  <janus@gcc.gnu.org>

        PR fortran/60777
        * expr.c (external_spec_function): Allow recursive specification
        functions in F03.

2016-11-09  Paul Thomas  <pault@gcc.gnu.org>

        * check.c (gfc_check_move_alloc): Prevent error that avoids
        aliasing between to and from arguments from rejecting valid
        code.

2016-11-09  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/71894
        * class.c (gfc_add_component_ref): Add safety checks to avoid ICE.

2016-11-08  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/68440
        * expr.c (check_alloc_comp_init): Loosen an assert.
        * resolve.c (resolve_fl_parameter): Reject class parameters.

2016-11-08  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/77596
        * expr.c (gfc_check_pointer_assign): Add special check for procedure-
        pointer component with absent interface.

2016-11-07  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/78226
        * expr.c (gfc_generate_initializer):  Add where to EXPR_NULL
        statement.
        * iresolve.c (gfc_resolve_extends_type_of):  Add where to
        both arguments of the function.
        * resolve.c (resolve_select_type):  Add where to the
        second argument of the new statement.

2016-11-07  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/78226
        * match.c (gfc_match_select_type):  Add where for expr1.
        * resolve.c (resolev_select_type): Add where for expr1 of new
        statement.

2016-11-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/78226
        resolve.c (build_loc_call): Add location to return value.

2016-11-06  Andre Vehreschild  <vehre@gcc.gnu.org>

        * expr.c (is_non_empty_structure_constructor): New function to detect
        non-empty structure constructor.
        (gfc_has_default_initializer): Analyse initializers.
        * resolve.c (cond_init): Removed.
        (resolve_allocate_expr): Removed dead code.  Moved invariant code out
        of the loop over all objects to allocate.
        (resolve_allocate_deallocate): Added the invariant code remove from
        resolve_allocate_expr.
        * trans-array.c (gfc_array_allocate): Removed nullify of structure
        components in favour of doing this in gfc_trans_allocate for both
        scalars and arrays in the same place.
        * trans-expr.c (gfc_trans_init_assign): Always using _vptr->copy for
        class objects.
        * trans-stmt.c (allocate_get_initializer): Get the initializer
        expression for object allocated.
        (gfc_trans_allocate): Nullify a derived type only, when no SOURCE=
        or MOLD= is present preventing duplicate work.  Moved the creation
        of the init-expression here to prevent code for conditions that
        can not occur on freshly allocated object, like checking for the need
        to free allocatable components.

2016-11-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/78221
        * arith.c (gfc_complex2real):  Change gfc_warning_now to
        gfc_warning.

2016-11-05  Paul Thomas  <pault@gcc.gnu.org>

        * check.c (gfc_check_move_alloc): Introduce error to prevent
        aliasing between to and from arguments.

2016-11-05  Janus Weil  <janus@gcc.gnu.org>
            Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR fortran/69495
        * invoke.texi: Mention -Wpedantic as an alias of -pedantic.
        * check.c (gfc_check_transfer): Mention responsible flag in warning
        message.
        * frontend-passes.c (do_warn_function_elimination): Ditto.
        * resolve.c (resolve_elemental_actual): Ditto.
        (resolve_operator): Ditto.
        (warn_unused_fortran_label): Ditto.
        * trans-common.c (translate_common): Ditto.

2016-11-05  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/67564
        * trans-expr.c (gfc_conv_class_to_class): Return _len component
        of unlimited polymorphic entities.

2016-11-04  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/64933
        * primary.c (gfc_match_varspec): If selector expression is
        unambiguously an array, make sure that the associate name
        is an array and has an array spec. Modify the original
        condition for doing this to exclude character types.

2016-11-03  Fritz Reese <fritzoreese@gmail.com>

        * gfortran.texi: Document.
        * gfortran.h (gfc_dt): New field default_exp.
        * primary.c (match_real_constant): Default exponent with -fdec.
        * io.c (match_io): Set dt.default_exp with -fdec.
        * ioparm.def (IOPARM_dt_default_exp): New.
        * trans-io.c (build_dt): Set IOPARM_dt_default_exp with -fdec.

2016-11-03  Fritz O. Reese <fritzoreese@gmail.com>

        * decl.c (gfc_match_parameter): Allow omitted '()' with -std=legacy.
        * parse.c (decode_statement): Match "parameter" before assignments.
        * gfortran.texi: Document.

2016-11-02  Fritz O. Reese <fritzoreese@gmail.com>

        * lang.opt, invoke.texi: New argument -Wargument-mismatch.
        * interface.c (compare_parameter, compare_actual_formal,
        gfc_check_typebound_override, argument_rank_mismatch): Control argument
        mismatch warnings with -Wargument-mismatch.
        * resolve.c (resolve_structure_cons, resolve_global_procedure): Ditto.

2016-11-02  Fritz Reese <fritzoreese@gmail.com>

        * gfortran.h (gfc_error): New declaration for gfc_error with 'opt'.
        * error.c (gfc_error): Add optional 'opt' argument.
        * error.c (gfc_notify_std): Call fully-qualified gfc_error.

2016-11-01  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/78178
        * match.c (match_simple_where):  Fill in locus for assigment
        in simple WHERE statement.

2016-11-01  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/69544
        * match.c (gfc_match_where):  Fill in locus for assigment
        in simple WHERE statement.

2016-10-31  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/54679
        * io.c (check_format): Adjust checks for FMT_L to treat a zero
        width as an extension, giving warnings or error as appropriate.
        Improve messages.

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

        * trans-types.c (gfc_get_array_descr_info): For -gdwarf-5 or
        -gno-strict-dwarf, handle assumed rank arrays the way dwarf2out
        expects.

2016-10-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/67219
        * arith.c (gfc_int2real):  Change gfc_warning_now
        to gfc_warning.
        * primary.c (match_complex_constant):  If there
        is no comma, throw away any warning which might have
        been issued by gfc_int2real.

2016-10-28  Steven G. Kargl <kargl@gcc.gnu.org>

        PR fortran/71891
        * symbol.c (gfc_type_compatible): Fix typo.

2016-10-27  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/78026
        * parse.c (decode_statement): Don't create namespace for possible
        select type here and destroy it afterwards.
        (parse_select_type_block): Set gfc_current_ns to new_st.ext.block.ns.
        (parse_executable, gfc_parse_file): Formatting fixes.
        * match.c (gfc_match_select_type): Create namespace for select type
        here, only after matching select type.  Formatting fixes.  Free that
        namespace if not returning MATCH_YES, after gfc_undo_symbols,
        otherwise remember it in new_st.ext.block.ns and switch to parent
        namespace anyway.

2016-10-27  Fritz Reese  <fritzoreese@gmail.com>

        * expr.c (generate_union_initializer, get_union_initializer): New.
        * expr.c (component_initializer): Consider BT_UNION specially.
        * resolve.c (resolve_structure_cons): Hack for BT_UNION.
        * trans-expr.c (gfc_trans_subcomponent_assign): Ditto.
        * trans-expr.c (gfc_conv_union_initializer): New.
        * trans-expr.c (gfc_conv_structure): Replace UNION handling code with
        new function gfc_conv_union_initializer.

2016-10-26  Steven G. Kargl <kargl@gcc.gnu.org>

        PR fortran/78092
        * trans-intrinsic.c (gfc_conv_intrinsic_sizeof):  Fix reference to an
        array element of type CLASS.

2016-10-26  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/78108
        * resolve.c (resolve_typebound_intrinsic_op): For submodules
        suppress the error and return if the same procedure symbol
        is added more than once to the interface.

2016-10-26  Fritz Reese  <fritzoreese@gmail.com>

        * frontend-passes.c (gfc_code_walker): Add SHARE and CARRIAGECONTROL.
        * io.c (gfc_free_open, gfc_resolve_open, gfc_match_open): Ditto.
        * gfortran.h (gfc_open): Add SHARE, CARRIAGECONTROL, and READONLY.
        * io.c (io_tag, match_open_element): Ditto.
        * ioparm.def: Ditto.
        * trans-io.c (gfc_trans_open): Ditto.
        * io.c (match_dec_etag, match_dec_ftag): New functions.
        * gfortran.texi: Document.

2016-10-25  Fritz Reese  <fritzoreese@gmail.com>

        * gfortran.texi: Document.
        * resolve.c (logical_to_bitwise): New function.
        * resolve.c (resolve_operator): Wrap operands with logical_to_bitwise.

2016-10-25  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/72770
        * class.c (find_intrinsic_vtab): No longer encode the string length
        into vtype's name and use the char's kind for the size instead of
        the string_length time the size.
        * trans-array.c (gfc_conv_ss_descriptor): For deferred length char
        arrays the dynamically sized type needs to be declared.
        (build_class_array_ref): Address the i-th array element by multiplying
        it with the _vptr->_size and the _len to make sure char arrays are
        addressed correctly.
        * trans-expr.c (gfc_conv_intrinsic_to_class): Made comment more
        precise.

2016-10-25  Cesar Philippidis  <cesar@codesourcery.com>

        * intrinsic.texi (cosd): New mathop.

2016-10-25  Fritz Reese  <fritzoreese@gmail.com>

        * match.c (gfc_match_intrinsic_op): Match ".XOR." with -std=legacy.
        * gfortran.texi: Document.

2016-10-25  Fritz Reese  <fritzoreese@gmail.com>

        * primary.c (gfc_match_rvalue): Match %LOC as LOC with -std=legacy.
        * gfortran.texi: Document.

2016-10-25  Fritz Reese  <fritzoreese@gmail.com>

        * decl.c (gfc_match_type): New function.
        * match.h (gfc_match_type): New function.
        * match.c (gfc_match_if): Special case for one-line IFs.
        * gfortran.texi: Update documentation.
        * parse.c (decode_statement): Invoke gfc_match_type.

2016-10-25  Fritz Reese  <fritzoreese@gmail.com>

        * gfortran.texi: Document.
        * gfortran.h (gfc_is_whitespace): Include form feed ('\f').

2016-10-25  Fritz Reese  <fritzoreese@gmail.com>

        * invoke.texi, gfortran.texi: Touch up documentation of -fdec.
        * gfortran.h (gfc_option): Move flag_dec_structure out of gfc_option.
        * decl.c (match_record_decl, gfc_match_decl_type_spec,
        gfc_match_structure_decl): Ditto.
        * match.c (gfc_match_member_sep): Ditto.
        * options.c (gfc_handle_option): Ditto.
        * lang.opt (fdec-structure): Use Fortran Var for flag_dec_structure.
        * lang.opt (fdec): Use Fortran Var to create flag_dec.
        * options.c (set_dec_flags): With -fdec enable -fcray-pointer,
        -fd-lines-as-comments (default), -fdollar-ok, and legacy std flags.

2016-10-24  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/77828
        * ioparm.def: Reorder dt parameters to match libgfortran.
        * libgfortran.h: Swap definitions of GFC_INTERNAL_UNIT and
        GFC_INTERNAL_UNIT4.

2016-10-24  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/71895
        * interface.c (gfc_compare_derived_types):  Convert gcc_assert()
        to a gfc_internal_error() to prevent an ICE.

2016-10-24  Jakub Jelinek  <jakub@redhat.com>

        * trans-intrinsic.c (gfc_conv_intrinsic_minmax): Use VAR_P (x)
        instead of TREE_CODE (x) == VAR_DECL.
        * trans-expr.c (gfc_class_vptr_get, gfc_class_len_get,
        gfc_class_len_or_zero_get, gfc_get_vptr_from_expr,
        gfc_conv_string_length, conv_base_obj_fcn_val,
        gfc_conv_procedure_call, gfc_trans_assignment_1): Likewise.
        * trans-openmp.c (gfc_omp_predetermined_sharing,
        gfc_omp_disregard_value_expr, gfc_omp_private_debug_clause,
        gfc_trans_omp_atomic, gfc_trans_omp_do): Likewise.
        * trans-io.c (nml_get_addr_expr): Likewise.
        * trans-decl.c (gfc_finish_decl, gfc_build_qualified_array,
        gfc_get_symbol_decl, gfc_get_fake_result_decl,
        gfc_trans_deferred_vars, gfc_trans_use_stmts,
        generate_local_decl): Likewise.
        * trans-array.c (trans_array_constructor, trans_array_bound_check,
        build_class_array_ref, gfc_array_init_size,
        gfc_trans_auto_array_allocation, gfc_trans_g77_array,
        gfc_trans_dummy_array_bias, gfc_alloc_allocatable_for_assignment,
        gfc_trans_deferred_array): Likewise.
        * trans.c (gfc_build_array_ref): Likewise.  Use
        VAR_OR_FUNCTION_DECL_P (x) instead of TREE_CODE (x) == VAR_DECL
        || TREE_CODE (x) == FUNCTION_DECL.

2016-10-23  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77763
        * parse.c (parse_spec): Allow STRUCTURE in BLOCK DATA.  Sort
        case labels.

2016-10-23  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/54730
        PR fortran/78033
        * array.c (gfc_match_array_constructor): Remove checkpointing
        introduced in r196416 (original fix for PR fortran/54730).  Move
        initialization to top of function.
        * match.c (gfc_match_type_spec): Special case matching for REAL.

2016-10-23  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/69834
        * class.c (gfc_find_derived_vtab): Obtain the gsymbol for the
        derived type's module. If the gsymbol is present and the top
        level namespace corresponds to a module, use the gsymbol name
        space. In the search to see if the vtable exists, try the gsym
        namespace first.
        * dump-parse-tree (show_code_node): Modify select case dump to
        show select type construct.
        * resolve.c (build_loc_call): New function.
        (resolve_select_type): Add check for repeated type is cases.
        Retain selector expression and use it later instead of expr1.
        Exclude deferred length TYPE IS cases and emit error message.
        Store the address for the vtable in the 'low' expression and
        the hash value in the 'high' expression, for each case. Do not
        call resolve_select.
        * trans.c(trans_code) : Call gfc_trans_select_type.
        * trans-stmt.c (gfc_trans_select_type_cases): New function.
        (gfc_trans_select_type): New function.
        * trans-stmt.h : Add prototype for gfc_trans_select_type.

2016-10-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/78021
        * gfc_compare_functions:  Strings with different lengths in
        argument lists compare unequal.

2016-10-22  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/43366
        PR fortran/51864
        PR fortran/57117
        PR fortran/61337
        PR fortran/61376
        * primary.c (gfc_expr_attr): For transformational functions on classes
        get the attrs from the class argument.
        * resolve.c (resolve_ordinary_assign): Remove error message due to
        feature implementation.  Rewrite POINTER_ASSIGNS to ordinary ones when
        the right-hand side is scalar class object (with some restrictions).
        * trans-array.c (trans_array_constructor): Create the temporary from
        class' inner type, i.e., the derived type.
        (build_class_array_ref): Add support for class array's storage of the
        class object or the array descriptor in the decl saved descriptor.
        (gfc_conv_expr_descriptor): When creating temporaries for class objects
        add the class object's handle into the decl saved descriptor.
        (structure_alloc_comps): Use the common way to get the _data component.
        (gfc_is_reallocatable_lhs): Add notion of allocatable class objects.
        * trans-expr.c (gfc_find_and_cut_at_last_class_ref): Remove the only ref
        only when the expression's type is BT_CLASS.
        (gfc_trans_class_init_assign): Correctly handle class arrays.
        (gfc_trans_class_assign): Joined into gfc_trans_assignment_1.
        (gfc_conv_procedure_call): Support for class types as arguments.
        (trans_get_upoly_len): For unlimited polymorphics retrieve the _len
        component's tree.
        (trans_class_vptr_len_assignment): Catch all ways to assign the _vptr
        and _len components of a class object correctly.
        (pointer_assignment_is_proc_pointer): Identify assignments of
        procedure pointers.
        (gfc_trans_pointer_assignment): Enhance support for class object pointer
        assignments.
        (gfc_trans_scalar_assign): Removed assert.
        (trans_class_assignment): Assign to a class object.
        (gfc_trans_assignment_1): Treat class objects correctly.
        (gfc_trans_assignment): Propagate flags to trans_assignment_1.
        * trans-stmt.c (gfc_trans_allocate): Use gfc_trans_assignment now
        instead of copy_class_to_class.
        * trans-stmt.h: Function prototype removed.
        * trans.c (trans_code): Less special casing for class objects.
        * trans.h: Added flags to gfc_trans_assignment () prototype.

2016-10-21  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/69566
        * resolve.c (fixup_array_ref): New function.
        (resolve_select_type): Gather up the rank and array reference,
        if any, from the selector. Fix up the 'associate name' and the
        'associate entities' as necessary.
        * trans-expr.c (gfc_conv_class_to_class): If the symbol backend
        decl is a FUNCTION_DECL, use the 'fake_result_decl' instead.

2016-10-20  Steven G. Kargl  <kargl@gcc.gnu.org>

        * array.c (gfc_match_array_constructor): Remove set, but unused
        variable.

2016-10-20  Andre Vehreschild  <vehre@gcc.gnu.org>

        * class.c (gfc_build_class_symbol): Set the kind of _len to
        gfc_charlen_int_kind to catch changes of the charlen kind.

2016-10-17  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77978
        * match.c (gfc_match_stopcode): Fix error reporting for several
        deficiencies in matching stop-codes.

2016-10-17  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/61420
        PR fortran/78013
        * resolve.c (resolve_variable): Obtain the typespec for a
        variable expression, when the variable is a function result
        that is a procedure pointer.

2016-10-16  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/48298
        * trans-io.c (transfer_expr): Ignore dtio procedures for inquire
        with iolength.

2016-10-15  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/77972
        * scanner.c (gfc_next_char_literal): If nextc is null do not
        decrement the pointer and call the diagnostics.

2016-10-14  Andre Vehreschild  <vehre@gcc.gnu.org>

        * resolve.c (resolve_symbol): Add unimplemented message for
        polymorphic types with allocatable/pointer components and coarray=lib.

2016-10-13  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * trans-intrinsic.c: Include memmodel.h.

2016-10-13  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/72832
        * trans-expr.c (gfc_copy_class_to_class): Add generation of
        runtime array bounds check.
        * trans-intrinsic.c (gfc_conv_intrinsic_size): Add a crutch to
        get the descriptor of a function returning a class object.
        * trans-stmt.c (gfc_trans_allocate): Use the array spec on the
        array to allocate instead of the array spec from source=.

2016-10-12  Andre Vehreschild  <vehre@gcc.gnu.org>

        * trans-expr.c (gfc_find_and_cut_at_last_class_ref): Fixed style.
        (gfc_trans_class_init_assign): Same.
        (gfc_conv_procedure_call): Same.
        (gfc_trans_assignment_1): Same.
        * trans-stmt.c (gfc_trans_allocate): Same.

2016-10-11  Jakub Jelinek  <jakub@redhat.com>

        * iresolve.c (is_trig_resolved, resolve_trig_call): Formatting fixes.
        * simplify.c (simplify_trig_call, degrees_f, radians_f,
        gfc_simplify_atrigd, gfc_simplify_cotan): Likewise.

2016-10-11  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77942
        * simplify.c (gfc_simplify_cshift): Check for zero.

2016-10-11  Fritz Reese  <fritzoreese@gmail.com>

        * iresolve.c (get_radians, get_degrees): Fix sloppy commit.
        * simplify.c (degrees_f, radians_f): Ditto.

2016-10-11  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        * simplify.c (radians_f): Fix mpfr_mod.
        * ireolce.c (get_degrees): Declare tmp.

2016-10-11  Fritz Reese  <fritzoreese@gmail.com>

        * lang.opt: New flag -fdec-math.
        * options.c (set_dec_flags): Enable with -fdec.
        * invoke.texi, gfortran.texi, intrinsic.texi: Update documentation.
        * intrinsics.c (add_functions, do_simplify): New intrinsics
        with -fdec-math.
        * gfortran.h (gfc_isym_id): New isym GFC_ISYM_COTAN.
        * gfortran.h (gfc_resolve_atan2d, gfc_resolve_cotan,
        gfc_resolve_trigd, gfc_resolve_atrigd): New prototypes.
        * iresolve.c (resolve_trig_call, get_degrees, get_radians,
        is_trig_resolved, gfc_resolve_cotan, gfc_resolve_trigd,
        gfc_resolve_atrigd, gfc_resolve_atan2d): New functions.
        * intrinsics.h (gfc_simplify_atan2d, gfc_simplify_atrigd,
        gfc_simplify_cotan, gfc_simplify_trigd): New prototypes.
        * simplify.c (simplify_trig_call, degrees_f, radians_f,
        gfc_simplify_cotan, gfc_simplify_trigd, gfc_simplify_atrigd,
        gfc_simplify_atan2d): New functions.

2016-10-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/77915
        * frontend-passes.c (inline_matmul_assign):  Return early if
        inside a FORALL statement.

2016-10-07  Fritz Reese  <fritzoreese@gmail.com>

        * interface.c (compare_components): Check charlen for BT_CHAR.

2016-10-07  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77406
        * interface.c (gfc_compare_interfaces): Fix detection of ambiguous
        interface involving alternate return.
        (check_interface1): Improve error message and loci.

2016-10-06  Louis Krupp  <louis.krupp@zoho.com>

        PR fortran/69955
        * trans-array.c (gfc_conv_expr_descriptor): Don't allocate
        components if it's not necessary.

2016-10-05  Louis Krupp  <louis.krupp@zoho.com>

        PR fortran/57910
        * trans-expr.c (gfc_add_interface_mapping): Don't try to
        dereference call-by-value scalar argument.

2016-10-05  Steven G. Kargl  <kargls@gcc.gnu.org>

        PR fortran/58991
        PR fortran/58992
        * resolve.c (resolve_assoc_var):  Fix CHARACTER type-spec for a
        selector in ASSOCIATE.
        (resolve_fl_variable): Skip checks for an ASSOCIATE variable.

2016-10-05  Fritz Reese  <fritzoreese@gmail.com>

        * interface.c (gfc_compare_types): Don't compare BT_UNION components
        until we know they're both UNIONs.
        * interface.c (gfc_compare_union_types): Guard against empty
        components.

2016-10-05  Louis Krupp  <louis.krupp@zoho.com>

        PR fortran/67524
        * resolve.c (resolve_symbol): Don't apply default type rules to
        mixed-entry master created for function entry points.

2016-09-30  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/66643
        * io.c (match_dt_unit): Peek check for missing format.

2016-09-30  Fritz Reese  <fritzoreese@gmail.com>

        PR fortran/77764
        * interface.c (gfc_compare_union_types): Null-guard map components.

2016-09-30  Fritz Reese  <fritzoreese@gmail.com>

        PR fortran/77782
        * interface.c (gfc_compare_derived_types): Use gfc_compare_union_types
        to compare union types.

2016-09-30  Andre Vehreschild  <vehre@gcc.gnu.org>

        * trans-array.c (gfc_array_allocate): Use the token from coarray's
        .token member.
        * trans-intrinsic.c (conv_expr_ref_to_caf_ref): Only generate
        caf-reference chains from the first coarray references on.
        * trans-types.c (gfc_get_derived_type): Switch on mandatory .token
        member generation for allocatable arrays in coarrays in derived types.

2016-09-29  James Greenhalgh  <james.greenhalgh@arm.com>

        * options.c (gfc_post_options): Remove special case for
        TARGET_FLT_EVAL_METHOD_NON_DEFAULT with -fexcess-precision=standard.

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

        * dependency.c (gfc_dep_compare_expr): Remove break after return.
        * frontend-passes.c (optimize_op): Likewise.
        * interface.c (gfc_current_interface_head): Likewise.
        * symbol.c (check_conflict): Likewise.
        * trans-intrinsic.c (build_fix_expr): Likewise.

        PR fortran/77666
        * trans-openmp.c (gfc_omp_private_outer_ref): Return true even for
        references to allocatable arrays.

2016-09-26  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77420
        * trans-common.c:  Handle array elements in equivalence when
        the lower and upper bounds of array spec are NULL.

2016-09-26  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/48298
        * interface.c (gfc_find_specific_dtio_proc) : Return NULL if
        the derived type is broken, as indicated by a flavor other than
        FL_DERIVED.

2016-09-26  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * arith.c (eval_intrinsic): Add gcc_fallthrough.
        * frontend-passes.c (optimize_op): Likewise.
        (gfc_expr_walker): Likewise.
        * parse.c (next_fixed): Likewise.
        * primary.c (match_variable): Likewise.
        * trans-array.c: Likewise.
        * trans-expr.c (flatten_array_ctors_without_strlen): Likewise.
        * trans-io.c (transfer_expr): Likewise.

2016-09-25  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77429
        * dependency.c (gfc_check_dependency):  Convert gcc_assert() to
        a conditional and possible call to  gfc_internal_error().

2016-09-25  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77694
        * frontend-passes.c (optimize_binop_array_assignment): Check pointer
        for NULL.

2016-09-23  Fritz Reese  <fritzoreese@gmail.com>

        * lang.opt, invoke.texi, gfortran.texi: New flag -fdec-static.
        * options.c (set_dec_flags): Set -fdec-static with -fdec.
        * gfortran.h (symbol_attribute): New attribute automatic.
        * gfortran.h (gfc_add_automatic): New prototype.
        * match.h (gfc_match_automatic, gfc_match_static): New functions.
        * decl.c (gfc_match_automatic, gfc_match_static): Ditto.
        * symbol.c (gfc_add_automatic): Ditto.
        * decl.c (match_attr_spec): Match AUTOMATIC and STATIC decls.
        * parse.c (decode_specification_statement, decode_statement): Ditto.
        * resolve.c (apply_default_init_local, resolve_fl_variable_derived,
        resolve_symbol): Support for automatic attribute.
        * symbol.c (check_conflict, gfc_copy_attr, gfc_is_var_automatic):
        Ditto.
        * trans-decl.c (gfc_finish_var_decl): Ditto.

2016-09-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/48298
        * gfortran.h (gfc_dt): Add *udtio.
        * ioparm.def: Add bit IOPARM_dt_f2003 to align with library use of bit
        25. Add IOPARM_dt_dtio bit to common flags.
        * resolve.c (resolve_transfer): Set dt->udtio to expression.
        * io.c (gfc_match_inquire): Adjust error message for internal
        unit KIND.
        * libgfortran.h: Adjust defines for GFC_INTERNAL_UNIT4,
        GFC_INTERNAL_UNIT, and GFC_INVALID_UNIT.
        * trans-io.c (build_dt): Set common_unit to reflect the KIND of
        the internal unit. Set mask bit for presence of dt->udtio.

2016-09-22  Andre Vehreschild  <vehre@gcc.gnu.org>

        * trans-intrinsic.c (gfc_conv_intrinsic_caf_get): Use the old caf-
        interface where possible.

2016-09-22  Paul Thomas  <pault@gcc.gnu.org>

        * interface.c (check_dtio_interface1): Introduce errors for
        alternate returns and incorrect numbers of arguments.
        (gfc_find_specific_dtio_proc): Return cleanly if the derived
        type either doesn't exist or has no namespace.

2016-09-21  Louis Krupp  <louis.krupp@zoho.com>

        PR fortran/66107
        * decl.c (add_init_expr_to_sym): Catch variable character length
        in parameter array.

2016-09-21  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/77657

        * interface.c (gfc_find_specific_dtio_proc): Borrow trick from
        resolve_typebound_generic_call to find dtio procedures that
        over-ride those in the declared type.

2016-09-20  Marek Polacek  <polacek@redhat.com>

        * trans-intrinsic.c (conv_expr_ref_to_caf_ref): Adjust fall through
        comment.

2016-09-19  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/71952
        * expr.c (gfc_check_assign): Added flag to control whether datatype
        conversion is allowed.
        * gfortran.h: Added caf-token-tree to gfc_component.  Changed
        prototypes mostly to add whether datatype conversion is allowed.
        * gfortran.texi: Added documentation for the caf_reference_t and the
        caf_*_by_ref function.
        * primary.c (caf_variable_attr): Similar to gfc_variable_attr but
        focused on the needs of coarrays.
        (gfc_caf_attr): Same.
        * resolve.c (resolve_ordinary_assign): Set the conversion allowed
        flag when not in a coarray.
        * trans-array.c (gfc_array_init_size): Moved setting of array
        descriptor's datatype before the alloc, because caf_register needs it.
        (gfc_array_allocate): Changed notion of whether an array is a coarray.
        (gfc_array_deallocate): Same.
        (gfc_alloc_allocatable_for_assignment): Added setting of coarray's
        array descriptor datatype before the register.  And using deregister/
        register to mimmick a realloc for coarrays.
        * trans-decl.c (gfc_build_builtin_function_decls): Corrected signatures
        of old caf-functions and added signature definitions of the _by_ref
        ones.
        (generate_coarray_sym_init): Adapted to new caf_register signature.
        * trans-expr.c (gfc_conv_scalar_to_descriptor): Make sure a constant
        is translated to an lvalue expression before use in an array
        descriptor.
        (gfc_get_ultimate_alloc_ptr_comps_caf_token): New function.  Get the
        last allocatable component's coarray token.
        (gfc_get_tree_for_caf_expr): For top-level object get the coarray
        token and check for unsupported features.
        (gfc_get_caf_token_offset): Getting the offset might procude new
        statements, which now are stored in the pre and post of the current se.
        (gfc_caf_get_image_index): For this image return a call to
        caf_this_image.
        (expr_may_alias_variables): Check that the result is set for testing
        its properties.
        (alloc_scalar_allocatable_for_assignment): Added auto allocation of
        coarray components.
        (gfc_trans_assignment_1): Rewrite an assign to a coarray object to
        be a sendget.
        * trans-intrinsic.c (conv_caf_vector_subscript_elem): Corrected
        wrong comment.
        (compute_component_offset): Compute the correct offset a structure
        member.
        (conv_expr_ref_to_caf_ref): Convert to a chain of refs into
        caf_references.
        (gfc_conv_intrinsic_caf_get): Call caf_get_by_ref instead of caf_get.
        (conv_caf_send): Call caf_*_by_ref for coarrays that need
        reallocation.
        (gfc_conv_intrinsic_function): Adapted to new signuature of the caf
        drivers.
        (conv_intrinsic_atomic_op): Add pre and post statements correctly.
        (conv_intrinsic_atomic_ref): Same.
        (conv_intrinsic_atomic_cas): Same.
        (conv_intrinsic_event_query): Same.
        * trans-stmt.c (gfc_trans_lock_unlock): Same.
        (gfc_trans_event_post_wait): Same.
        (gfc_trans_allocate): Support allocation of allocatable coarrays.
        (gfc_trans_deallocate): And there deallocation.
        * trans-types.c (gfc_typenode_for_spec): Added flag to control whether
        a component is part of coarray.  When so, then add space to store a
        coarray token.
        (gfc_build_array_type): Same.
        (gfc_get_array_descriptor_base): Same.
        (gfc_get_array_type_bounds): Same.
        (gfc_sym_type): Same.
        (gfc_get_derived_type): Same.
        (gfc_get_caf_reference_type): Declare the caf_reference_type.
        * trans-types.h: Prototype changes only.
        * trans.c (gfc_allocate_using_lib): Use the updated caf_register
        signature.
        (gfc_allocate_allocatable): Same.
        (gfc_deallocate_with_status): Same.
        * trans.h: Defined the runtime types for caf_reference_t and the enums.

2016-09-19  Fritz Reese  <fritzoreese@gmail.com>

        PR fortran/77584
        * decl.c (match_record_decl, gfc_match_decl_type_spec): Fixes to
        handling of structure/record from declaration-type-spec.

2016_09_17  Louis Krupp  <louis.krupp@zoho.com>

        PR fortran/68078
        * resolve.c (resolve_allocate_expr): Check that derived type
        pointer, object or array has been successfully allocated before
        initializing.

2016-09-16  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77612
        * decl.c (char_len_param_value): Check parent namespace for
        seen_implicit_none.

2016-09-15  Louis Krupp  <louis.krupp@zoho.com>

        PR fortran/69963
        * parse.c (reject_statement): Clear charlen pointers in implicit
        character typespecs before those charlen structures are freed.

2016-09-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * simplify.c (gfc_simplify_repeat): Fix a misplaced closing ')'.

2016-09-13  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77420
        * module.c (load_equiv):  Revert revision 240063.

2016-09-10  Paul Thomas  <pault@gcc.gnu.org>
            Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77532
        * interface.c (check_dtio_arg_TKR_intent): Return after error.
        (check_dtio_interface1): Remove asserts, test for NULL and return
        if found.

2016-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77420
        * module.c (load_equiv): If the current namespace has a list of
        equivalence statements, initialize duplicate to false and then
        look for duplicates; otherwise, initialize it to true.

2016-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77506
        * array.c (gfc_match_array_constructor): CHARACTER(len=*) cannot
        appear in an array constructor.

2016-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77507
        * intrinsic.c (add_functions):  Use correct keyword.

2016-09-08  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/69514
        * array.c (gfc_match_array_constructor):  If type-spec is present,
        walk the array constructor performing possible conversions for
        numeric types.

2016-09-08  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/77500
        * trans-openmp.c (gfc_trans_omp_atomic): For atomic write or
        swap, don't try to look through GFC_ISYM_CONVERSION.  In other cases,
        check that value.function.isym is non-NULL before dereferencing it.

2016-09-04  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77391
        * resolve.c (deferred_requirements): New function to check F2008:C402.
        (resolve_fl_variable,resolve_fl_parameter): Use it.

2016-09-04  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77460
        * simplify.c (simplify_transformation_to_scalar):  On error, result
        may be NULL, simply return.

2016-08-31  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/77352
        * trans-openmp.c (gfc_trans_omp_parallel_workshare): Always add a
        BIND_EXPR with BLOCK around what gfc_trans_omp_workshare returns.

        PR fortran/77374
        * parse.c (parse_omp_oacc_atomic): Copy over cp->ext.omp_atomic
        to cp->block->ext.omp_atomic.
        * resolve.c (gfc_resolve_blocks): Assert block with one or two
        EXEC_ASSIGNs for EXEC_*_ATOMIC.
        * openmp.c (resolve_omp_atomic): Don't assert one or two
        EXEC_ASSIGNs, instead return quietly for EXEC_NOPs and otherwise
        error unexpected statements.

2016-08-31  Paul Thomas  <pault@gcc.gnu.org>
            Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/48298
        * decl.c (access_attr_decl): Include case INTERFACE_DTIO as
        appropriate.
        * gfortran.h : Add INTRINSIC_FORMATTED and
        INTRINSIC_UNFORMATTED to gfc_intrinsic_op. Add INTERFACE_DTIO
        to interface type. Add new enum 'dtio_codes'. Add bitfield
        'has_dtio_procs' to symbol_attr. Add prototypes
        'gfc_check_dtio_interfaces' and 'gfc_find_specific_dtio_proc'.
        * interface.c (dtio_op): New function.
        (gfc_match_generic_spec): Match generic DTIO interfaces.
        (gfc_match_interface): Treat DTIO interfaces in the same way as
        (gfc_current_interface_head): Add INTERFACE_DTIO appropriately.
        (check_dtio_arg_TKR_intent): New function.
        (check_dtio_interface1): New function.
        (gfc_check_dtio_interfaces): New function.
        (gfc_find_specific_dtio_proc): New function.
        * io.c : Add FMT_DT to format_token.
        (format_lex): Handle DTIO formatting.
        * match.c (gfc_op2string): Add DTIO operators.
        * resolve.c (derived_inaccessible): Ignore pointer components
        to enclosing derived type.
        (resolve_transfer): Resolve transfers that involve DTIO.
        procedures. Find the specific subroutine for the transfer and
        use its existence to over-ride some of the constraints on
        derived types. If the transfer is recursive, require that the
        subroutine be so qualified.
        (dtio_procs_present): New function.
        (resolve_fl_namelist): Remove inhibition of polymorphic objects
        in namelists if DTIO read and write subroutines exist. Likewise
        for derived types.
        (resolve_types): Invoke 'gfc_verify_dtio_procedures'.
        * symbol.c : Set 'dtio_procs' using 'minit'.
        * trans-decl.c (gfc_finish_var_decl): If a derived-type/class
        object is associated with DTIO procedures, make it TREE_STATIC.
        * trans-expr.c (gfc_get_vptr_from_expr): If the expression
        drills down to a PARM_DECL, extract the vptr correctly.
        (gfc_conv_derived_to_class): Check 'info' in the test for
        'useflags'. If the se expression exists and is a pointer, use
        it as the class _data.
        * trans-io.c : Add IOCALL_X_DERIVED to iocall and the function
        prototype. Likewise for IOCALL_SET_NML_DTIO_VAL.
        (set_parameter_tree): Renamed from 'set_parameter_const', now
        returns void and has new tree argument. Calls modified to match
        new interface.
        (transfer_namelist_element): Transfer DTIO procedure pointer
        and vpointer using the new function IOCALL_SET_NML_DTIO_VAL.
        (get_dtio_proc): New function.
        (transfer_expr): Add new argument for the vptr field of class
        objects. Add the code to call the specific DTIO proc, convert
        derived types to class and call IOCALL_X_DERIVED.
        (trans_transfer): Add BT_CLASS to structures for treatment by
        the scalarizer. Obtain the vptr for the dynamic type, both for
        scalar and array transfer.

2016-08-30  Fritz Reese  <fritzoreese@gmail.com>

        * gfortran.texi: Fix typo in STRUCTURE documentation.

2016-08-29  Fritz Reese  <fritzoreese@gmail.com>

        Fix, reorganize, and clarify comparisons of anonymous types/components.

        PR fortran/77327
        * interface.c (is_anonymous_component, is_anonymous_dt): New functions.
        * interface.c (compare_components, gfc_compare_derived_types): Use new
        functions.

2016-08-27  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77380
        * dependency.c (gfc_check_dependency): Do not assert with
        -fcoarray=lib.

2016-08-27  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77372
        simplify.c (simplify_ieee_selected_real_kind): Check for NULL pointers.

2016-08-25  Steven g. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77351
        * frontend-passes.c (remove_trim,combine_array_constructor): Check for
        NULL pointer.

2016-08-24  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/77358
        * resolve.c (resolve_fl_procedure): Use the correct gfc_charlen
        for deferred character length module procedures.

2016-08-23  Fritz Reese  <fritzoreese@gmail.com>

        * decl.c (gfc_match_structure_decl): Make gfc_structure_id static.

2016-08-23  Fritz Reese  <fritzoreese@gmail.com>

        * interface.c (compare_components): Fix typo in name check conditional.

2016-08-22  Steven G. Kargl  <kargl@gcc.gnu.org>
            Bud Davis  <jmdavis@link.com>

        PR fortran/60774
        * parse.c (next_free,next_fixed): Issue error for statement label
        without a statement.

2016-08-22  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/61318
        * interface.c (compare_parameter): Use better locus for error message.

2016-08-22  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77260
        * gcc/fortran/trans-decl.c (generate_local_decl): Suppress warning
        for unused variable if symbol is entry point.

2016-08-19  Joseph Myers  <joseph@codesourcery.com>

        PR c/32187
        * trans-types.h (float128_type_node): Rename to
        gfc_float128_type_node.
        (complex_float128_type_node): Rename to
        gfc_complex_float128_type_node.
        * iso-c-binding.def, trans-intrinsic.c, trans-types.c: All users
        changed.

2016-08-19  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/71014
        * resolve.c (gfc_resolve): For ns->construct_entities don't save, clear
        and restore omp state around the resolving.

        PR fortran/69281
        * trans-openmp.c (gfc_trans_omp_parallel, gfc_trans_omp_task,
        gfc_trans_omp_target): Wrap gfc_trans_omp_code result in an extra
        BIND_EXPR with its own forced BLOCK.

2016-08-19  Janne Blomqvist  <jb@gcc.gnu.org>

        * intrinsics.texi (RANDOM_NUMBER): Remove reference to
        init_random_seed in example.
        (RANDOM_SEED): Remove warning to not set all seed values to 0.

2016-08-18  David Malcolm  <dmalcolm@redhat.com>

        * error.c (gfc_diagnostic_starter): Update for change to
        diagnostic_show_locus.

2016-08-17  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/67496
        * trans-array.c (trans_array_constructor): Load
        expr->ts.u.cl->length_from_typespec only if expr->ts.type is
        BT_CHARACTER.

2016-08-15  Fritz Reese  <fritzoreese@gmail.com>

        * lang.opt, invoke.texi: New flag -finit-derived.
        * gfortran.h (gfc_build_default_init_expr, gfc_apply_init,
        gfc_generate_initializer): New prototypes.
        * expr.c (gfc_build_default_init_expr, gfc_apply_init,
        component_initializer, gfc_generate_initializer): New functions.
        * expr.c (gfc_default_initializer): Wrap gfc_generate_initializer.
        * decl.c (build_struct): Move common code to gfc_apply_init.
        * resolve.c (can_generate_init): New function.
        * resolve.c (build_default_init_expr): Wrap gfc_build_default_init_expr.
        * resolve.c (apply_default_init, resolve_fl_variable_derived): Use
        gfc_generate_initializer.
        * trans-decl.c (gfc_generate_function_code): Use
        gfc_generate_initializer.

2016-08-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

        * frontend-passes.c (create_var):  Set ts.deferred for
        deferred-length character variables.
        * dump-parse-tree.c (show_typespec):  Also dump
        is_c_interop, is_iso_c and deferred flags.

2016-08-15  Jakub Jelinek  <jakub@redhat.com>

        PR debug/71906
        * trans-decl.c (gfc_get_symbol_decl): Call gfc_finish_var_decl
        for decl's character length before gfc_finish_var_decl on the
        decl itself.

2016-08-14  Chung-Lin Tang  <cltang@codesourcery.com>

        PR fortran/70598
        * openmp.c (resolve_omp_clauses): Adjust use_device clause
        handling to only allow pointers and arrays.

2016-08-12  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * decl.c (match_attr_spec): Add FALLTHRU.
        * primary.c (match_arg_list_function): Likewise.
        * resolve.c (resolve_operator): Adjust fall through comment.
        (fixup_charlen): Add FALLTHRU.
        (resolve_allocate_expr): Adjust fall through comment.
        * trans-array.c (gfc_conv_ss_startstride): Add FALLTHRU.
        * trans-intrinsic.c (gfc_conv_intrinsic_len): Adjust fall through
        comment.

2016-08-11  Janne Blomqvist  <jb@gcc.gnu.org>

        * check.c (gfc_check_random_seed): Use new seed size in check.
        * intrinsic.texi (RANDOM_NUMBER): Updated documentation.
        (RANDOM_SEED): Likewise.

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

        PR fortran/72716
        * openmp.c (gfc_match_omp_declare_simd): Don't stick anything into
        BLOCK DATA ns, it will be rejected later.

2016-08-08  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/71936
        * trans-array.c (gfc_array_allocate): When SOURCE= is a function
        stick with the ref of the object to allocate.

2016-08-08  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/72698
        * trans-stmt.c (gfc_trans_allocate): Prevent generating code for
        copy of zero sized string and with it an ICE.

2016-08-08  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/70524
        * trans-array.c (gfc_trans_dummy_array_bias): Ensure that the
        location information is correctly set.
        * trans-decl.c (gfc_trans_deferred_vars): Set the locus of the
        current construct early.

2016-08-03  Fritz Reese  <fritzoreese@gmail.com>

        * lang.opt: New option -fdec-intrinsic-ints.
        * options.c (set_dec_flags): Enable with -fdec.
        * gfortran.texi, invoke.texi, intrinsics.texi: Update documentation.
        * intrinsic.c (add_function, add_subroutine): New B/I/J/K intrinsic
        variants.

2016-07-30  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/41922
        * target-memory.c (expr_to_char): Pass in locus and use it in error
        messages.
        (gfc_merge_initializers): Ditto.
        * target-memory.h: Update prototype for gfc_merge_initializers ().
        * trans-common.c (get_init_field): Use the correct locus.

2016-07-30  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/68566
        * check.c (gfc_check_reshape): Check for constant expression.

2016-07-30  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/69867
        * decl.c (build_struct): Ensure that pointers point to something.

2016-07-30  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/69962
        * decl.c (gfc_set_constant_character_len):  if expr is not
        constant issue an error instead of an ICE.

2016-07-30  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/70006
        * io.c (gfc_resolve_dt): Use correct locus.
        * resolve.c (resolve_branch): Ditto.

2016-07-30  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/71730
        * decl.c (char_len_param_value): Check return value of
        gfc_reduce_init_expr().

2016-07-29  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * trans-array.c (gfc_conv_array_ref): Fix allocation of diagnostic
        message (was too small).

2016-07-28  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/71067
        * decl.c (match_data_constant): On error, set 'result' to NULL.

2016-07-28  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/71799
        * resolve.c(gfc_resolve_iterator): Failure of type conversion need
        not ICE.

2016-07-28  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/71859
        * check.c(numeric_check): Prevent ICE.  Issue error for invalid
        subroutine as an actual argument when numeric argument is expected.

2016-07-28  Steven G. Kargl  <kargl@gcc.gnu.org>
            Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/71883
        * frontend-passes.c (gfc_run_passes): Bail out if there are any
        errors.
        * error.c (gfc_internal_error): If there are any errors in the
        buffer, exit with EXIT_FAILURE.

2016-07-28  Renlin Li  <renlin.li@arm.com>

        Revert
        2016-07-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/71902
        * dependency.c (gfc_check_dependency): Use dep_ref.  Handle case
        if identical is true and two array element references differ.
        (gfc_dep_resovler):  Move most of the code to dep_ref.
        (dep_ref):  New function.
        * frontend-passes.c (realloc_string_callback):  Name temporary
        variable "realloc_string".

2016-07-26  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/71862
        * class.c: Remove assert.  Iterate over component only if non-null.

2016-07-22  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/71935
        * check.c (is_c_interoperable): Simplify right expression.

2016-07-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/71795
        * frontend-passes.c (combine_array_constructor):  Don't
        do anything if the expression is inside an array iterator.

2016-07-22  Andre Vehreschild  <vehre@gcc.gnu.org>

        * expr.c (gfc_find_stat_co): Fixed whitespaces.
        * gfortran.texi: Fixed typos and reversed meaning of caf_get()'s
        src and dst description.
        * trans-decl.c (gfc_build_builtin_function_decls): Fixed style
        and corrected fnspec for caf functions.
        * trans-intrinsic.c (gfc_conv_intrinsic_caf_get): Fixed style.
        (conv_caf_send): Dito.

2016-07-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/71902
        * dependency.c (gfc_check_dependency): Use dep_ref.  Handle case
        if identical is true and two array element references differ.
        (gfc_dep_resovler):  Move most of the code to dep_ref.
        (dep_ref):  New function.
        * frontend-passes.c (realloc_string_callback):  Name temporary
        variable "realloc_string".

2016-07-17  Fritz Reese  <fritzoreese@gmail.com>

        PR fortran/71523
        * trans-decl.c (gfc_finish_var_decl): Replace automatic initializer with
        a static one.

2016-07-15  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
            Marco Restelli  <mrestelli@gmail.com>

        PR fortran/62125
        * symbol.c (select_type_insert_tmp): Recursively call self to take care
        of nested select type.

2016-07-15  Cesar Philippidis  <cesar@codesourcery.com>

        * openmp.c (gfc_match_omp_clauses): Scan for clause vector_length
        before vector.

2016-07-15  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/71807
        * trans-expr.c (gfc_trans_subcomponent_assign): Special casing
        when allocatable component is set to null() in initializer.

2016-07-14  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/29819
        * parse.c (parse_contained): Use proper locus.

2016-07-14  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/70842
        * simplify.c (gfc_simplify_len): Only for unlimited polymorphic
        types replace the expression's _data ref with a _len ref.

2016-07-09  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/71783
        * frontend-passes.c (create_var):  Always allocate a charlen
        for character variables.

2016-07-08  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/68426
        * simplify (gfc_simplify_spread): Adjust locus.

2016-07-08  Cesar Philippidis  <cesar@codesourcery.com>

        * parse.c (matcha): Define.
        (decode_oacc_directive): Add spec_only local var and set it.  Use
        matcha to parse acc directives except for routine and declare.  Return
        ST_GET_FCN_CHARACTERISTICS if a non-declarative directive could be
        matched.

2016-07-08  Martin Liska  <mliska@suse.cz>

        * invoke.texi (Wundefined-do-loop): Enhance documentation.

2016-07-07  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/71764
        * trans-expr.c (gfc_trans_structure_assign): Remove assert.

2016-07-07  Martin Liska  <mliska@suse.cz>

        * lang.opt (Wundefined-do-loop): New option.
        * resolve.c (gfc_resolve_iterator): Warn for Wundefined-do-loop.
        (gfc_trans_simple_do): Generate a c-style loop.
        (gfc_trans_do): Fix GNU coding style.
        * invoke.texi: Mention the new warning.

2016-07-07  Martin Liska  <mliska@suse.cz>

        * trans-stmt.c (gfc_trans_do): Add expect builtin for DO
        loops with step bigger than +-1.

2016-07-05  Alessandro Fanfarillo  <fanfarillo.gcc@gmail.com>

        * array.c (gfc_match_array_ref): Add parsing support for
        STAT= attribute in CAF reference.
        * expr.c (gfc_find_stat_co): New function that returns
        the STAT= assignment.
        * gfortran.h (gfc_array_ref): New member.
        * trans-decl.c (gfc_build_builtin_function_decls):
        new attribute for caf_get and caf_send functions.
        * trans-intrinsic.c (gfc_conv_intrinsic_caf_get): Passing
        the stat attribute to external function.
        (gfc_conv_intrinsic_caf_send): Ditto.

2016-07-05  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/71623
        * trans-stmt.c (gfc_trans_allocate): Add code of pre block of typespec
        in allocate to parent block.

2016-07-04  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/66575
        * decl.c (match_procedure_interface): Exit loop if procedure
        interface refers to itself.

2016-07-04  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
            Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/35849
        * simplify.c (gfc_simplify_ishftc): Check that absolute value of
        SHIFT is less than or equal to SIZE.

2016-07-01  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/71687
        * f95-lang.c (struct binding_level): Add reversed field.
        (clear_binding_level): Adjust initializer.
        (getdecls): If reversed is clear, set it and nreverse the names
        chain before returning it.
        (poplevel): Use getdecls.
        * trans-decl.c (gfc_generate_function_code, gfc_process_block_locals):
        Use nreverse to pushdecl decls in the declaration order.

        PR fortran/71717
        * trans-openmp.c (gfc_omp_privatize_by_reference): Return false
        for GFC_DECL_ASSOCIATE_VAR_P with POINTER_TYPE.

2016-06-30  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/71704
        * parse.c (matchs, matcho): Move right before decode_omp_directive.
        If spec_only, only gfc_match the keyword and if successful, goto
        do_spec_only.
        (matchds, matchdo): Define.
        (decode_omp_directive): Add spec_only local var and set it.
        Use matchds or matchdo macros instead of matchs or matcho
        for declare target, declare simd, declare reduction and threadprivate
        directives.  Return ST_GET_FCN_CHARACTERISTICS if a non-declarative
        directive could be matched.
        (next_statement): For ST_GET_FCN_CHARACTERISTICS restore
        gfc_current_locus from old_locus even if there is no label.

        PR fortran/71705
        * trans-openmp.c (gfc_trans_omp_clauses): Set TREE_ADDRESSABLE on
        decls in to/from clauses.

2016-06-29  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/71686
        * scanner.c (gfc_next_char_literal): Only decrement nextc if it
        is not NULL.

2016-06-29  Cesar Philippidis  <cesar@codesourcery.com>

        * openmp.c (match_oacc_clause_gang): Rename to ...
        (match_oacc_clause_gwv): this.  Add support for OpenACC worker and
        vector clauses.
        (gfc_match_omp_clauses): Use match_oacc_clause_gwv for
        OMP_CLAUSE_{GANG,WORKER,VECTOR}.  Propagate any MATCH_ERRORs for
        invalid OMP_CLAUSE_{ASYNC,WAIT,GANG,WORKER,VECTOR} clauses.
        (gfc_match_oacc_wait): Propagate MATCH_ERROR for invalid
        oacc_expr_lists.  Adjust the first and needs_space arguments to
        gfc_match_omp_clauses.

2016-06-29  Richard Biener  <rguenther@suse.de>

        PR middle-end/71002
        * f95-lang.c (LANG_HOOKS_GET_ALIAS_SET): Remove (un-)define.
        (gfc_get_alias_set): Remove.

2016-06-25  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/71649
        * module.c (create_intrinsic_function): Check for NULL values and
        return after giving error.

2016-06-21  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * trans-types.c (gfc_build_complex_type): Move setting complex
        MODE to layout_type, instead of setting it ahead of time by the
        caller.

2016-06-21  Tobias Burnus  <burnus@net-b.de>

        PR fortran/71068
        * resolve.c (resolve_function): Don't resolve caf_get/caf_send.
        (check_data_variable): Strip-off caf_get before checking.

2016-06-20  Tobias Burnus  <burnus@net-b.de>

        PR fortran/71194
        * trans-expr.c (gfc_trans_pointer_assignment): Correctly handle
        RHS pointer functions.

2016-06-19  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * class.c (gfc_add_class_array_ref): Call gfc_add_data_component()
        instead of gfc_add_component_ref().
        (gfc_get_len_component): Call gfc_add_len_component() instead of
        gfc_add_component_ref().
        * trans-intrinsic.c (gfc_conv_intrinsic_loc): Call
        gfc_add_data_component() instead of gfc_add_component_ref().
        * trans.c (gfc_add_finalizer_call): Call
        gfc_add_final_component() and gfc_add_size_component() instead
        of gfc_add_component_ref.

2016-06-18  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * trans-types.c (gfc_typenode_for_spec): Commentary typo fix.

2016-06-17  Cesar Philippidis  <cesar@codesourcery.com>

        * openmp.c (match_acc): New generic function to parse OpenACC
        directives.
        (gfc_match_oacc_parallel_loop): Use it.
        (gfc_match_oacc_parallel): Likewise.
        (gfc_match_oacc_kernels_loop): Likewise.
        (gfc_match_oacc_kernels): Likewise.
        (gfc_match_oacc_data): Likewise.
        (gfc_match_oacc_host_data): Likewise.
        (gfc_match_oacc_loop): Likewise.
        (gfc_match_oacc_enter_data): Likewise.
        (gfc_match_oacc_exit_data): Likewise.

2016-06-16  Martin Liska  <mliska@suse.cz>

        * trans-stmt.c (gfc_trans_simple_do): Predict the edge.

2016-06-16  Martin Liska  <mliska@suse.cz>

        * trans-array.c (gfc_array_allocate): Do not generate expect
        stmt.
        * trans.c (gfc_allocate_using_malloc): Properly set FAIL_ALLOC
        predictor for malloc return value.
        (gfc_allocate_allocatable): Use REALLOC predictor instead of
        FAIL_ALLOC.
        (gfc_deallocate_with_status): Likewise.

2016-06-13  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/70673
        * frontend-passes.c (realloc_string_callback): Add a call to
        gfc_dep_compare_expr.

2016-06-11  Dominique d'Humieres  <dominiq@lps.ens.fr>

        PR fortran/60751
        * io.c (gfc_resolve_dt): Replace GFC_STD_GNU with GFC_STD_LEGACY.

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

        PR c/71381
        * openmp.c (gfc_match_oacc_cache): Add comment.

2016-06-05  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/71404
        * io.c (match_io): For READ, commit in pending symbols in the
        current statement before trying to match an expression so that
        if the match fails and we undo symbols we dont toss good symbols.

2016-06-05  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/69659
        * trans-array.c (gfc_trans_dummy_array_bias): For class arrays use
        the address of the _data component to reference the arrays data
        component.

2016-06-03  Chung-Lin Tang  <cltang@codesourcery.com>

        * trans-openmp.c (gfc_trans_omp_reduction_list): Add mark_addressable
        bool parameter, set reduction clause DECLs as addressable when true.
        (gfc_trans_omp_clauses): Pass clauses->async to
        gfc_trans_omp_reduction_list, add comment describing OpenACC situation.

2016-06-01  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/52393
        * io.c (match_io): For READ, try to match a default character
        expression. If found, set the dt format expression to this,
        otherwise go back and try control list.

2016-06-01  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/71156
        * decl.c (copy_prefix): Add checks that the module procedure
        declaration prefixes are compliant with the interface. Invert
        order of existing elemental and pure checks.
        * resolve.c (resolve_fl_procedure): Invert order of elemental
        and pure errors.

2016-06-01  Jakub Jelinek  <jakub@redhat.com>

        * parse.c (case_decl): Move ST_OMP_* to ...
        (case_omp_decl): ... here, new macro.
        (verify_st_order): For case_omp_decl, complain about
        p->state >= ORDER_EXEC, but don't change p->state otherwise.

2016-05-26  Jakub Jelinek  <jakub@redhat.com>

        * openmp.c (resolve_omp_clauses): Warn if chunk_size is known not to
        be positive.

2016-05-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/66461
        * scanner.c (gfc_next_char_literal): Clear end_flag when adjusting
        current locus back to old_locus.

2016-05-20  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/71204
        * frontend-passes.c (realloc_string_callback): Clear inserted_block
        and changed_statement before calling create_var.

2016-05-15  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/69603
        * interface.c (compare_parameter): Check for non-NULL pointer.

2016-05-14  Fritz Reese  <fritzoreese@gmail.com>

        * gfortran.texi: Update example of DEC UNION extension.

2016-05-14  Fritz Reese  <fritzoreese@gmail.com>

        PR fortran/71047
        * expr.c (gfc_default_initializer): Avoid extra component refs in
        constructors for derived types and classes.

2016-05-11  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/70855
        * frontend-passes.c (inline_matmul_assign): Disable in !$omp workshare.

2016-05-09  Richard Biener  <rguenther@suse.de>

        PR fortran/70937
        * trans-decl.c: Include gimplify.h for unshare_expr.
        (gfc_trans_vla_one_sizepos): Unshare exprs before inserting
        them into the IL.

2016-05-07  Fritz Reese  <fritzoreese@gmail.com>

        PR fortran/56226
        * module.c (dt_upper_string): Rename to gfc_dt_upper_string
        (dt_lower_string): Likewise.
        * gfortran.h: Make new gfc_dt_upper/lower_string global.
        * class.c: Use gfc_dt_upper_string.
        * decl.c: Likewise.
        * symbol.c: Likewise.
        * resolve.c (resolve_component): New function.
        (resolve_fl_derived0): Move component loop code to resolve_component.
        * parse.c (check_component): New function.
        (parse_derived): Move loop code to check_component.
        * lang.opt, invoke.texi, options.c : New option -fdec-structure.
        * libgfortran.h (bt): New basic type BT_UNION.
        * gfortran.h (gfc_option): New option -fdec-structure.
        (gfc_get_union_type, gfc_compare_union_types): New prototypes.
        (gfc_bt_struct, gfc_fl_struct, case_bt_struct, case_fl_struct): New
        macros.
        (gfc_find_component): Change prototype.
        * match.h (gfc_match_member_sep, gfc_match_map, gfc_match_union,
        gfc_match_structure_decl): New prototypes.
        * parse.h (gfc_comp_struct): New macro.
        * symbol.c (gfc_find_component): Search for components in nested unions
        * class.c (insert_component_ref, gfc_add_component_ref, add_proc_comp,
        copy_vtab_proc_comps): Update calls to gfc_find_component.
        * primary.c (gfc_convert_to_structure_constructor): Likewise.
        * symbol.c (gfc_add_component): Likewise.
        * resolve.c (resolve_typebound_function, resolve_typebound_subroutine,
        resolve_typebound_procedure, resolve_component, resolve_fl_derived):
        Likewise.
        * expr.c (get_union_init, component_init): New functions.
        * decl.c (match_clist_expr, match_record_decl, get_struct_decl,
        gfc_match_map, gfc_match_union, gfc_match_structure_decl): Likewise.
        * interface.c (compare_components, gfc_compare_union_types): Likewise.
        * match.c (gfc_match_member_sep): Likewise.
        * parse.c (check_component, parse_union, parse_struct_map): Likewise.
        * resolve.c (resolve_fl_struct): Likewise.
        * symbol.c (find_union_component): Likewise.
        * trans-types.c (gfc_get_union_type): Likewise.
        * parse.c (parse_derived): Use new functions.
        * interface.c (gfc_compare_derived_types, gfc_compare_types): Likewise.
        * expr.c (gfc_default_initializer): Likewise.
        * gfortran.texi: Support for DEC structures, unions, and maps.
        * gfortran.h (gfc_statement, sym_flavor): Likewise.
        * check.c (gfc_check_kill_sub): Likewise.
        * expr.c (gfc_copy_expr, simplify_const_ref,
        gfc_has_default_initializer): Likewise.
        * decl.c (build_sym, match_data_constant, add_init_expr_to_sym,
        match_pointer_init, build_struct, variable_decl,
        gfc_match_decl_type_spec, gfc_mach_data-decl, gfc_match_entry,
        gfc_match_end, gfc_match_derived_decl): Likewise.
        * interface.c (check_interface0, check_interface1,
        gfc_search_interface): Likewise.
        * misc.c (gfc_basic_typename, gfc_typename): Likewise.
        * module.c (add_true_name, build_tnt, bt_types, mio_typespec,
        fix_mio_expr, load_needed, mio_symbol, read_module, write_symbol,
        gfc_get_module_backend_decl): Likewise.
        * parse.h (gfc_compile_state): Likewise.
        * parse.c (decode_specification_statement, decode_statement,
        gfc_ascii_statement, verify_st_order, parse_spec): Likewise.
        * primary.c (gfc_match_varspec, gfc_match_structure_constructor,
        gfc_match_rvalue, match_variable): Likewise.
        * resolve.c (find_arglists, resolve_structure_cons,
        is_illegal_recursion, resolve_generic_f, get_declared_from_expr,
        resolve_typebound_subroutine, resolve_allocate_expr,
        nonscalar_typebound_assign, generate_component_assignments,
        resolve_fl_variable_derived, check_defined_assignments,
        resolve_component, resolve_symbol, resolve_equivalence_derived):
        Likewise.
        * symbol.c (flavors, check_conflict, gfc_add_flavor, gfc_use_derived,
        gfc_restore_last_undo_checkpoint, gfc_type_compatible,
        gfc_find_dt_in_generic): Likewise.
        * trans-decl.c (gfc_get_module_backend_decl, create_function_arglist,
        gfc_create_module_variable, check_constant_initializer): Likewise.
        * trans-expr.c (gfc_conv_component_ref, gfc_conv_initializer,
        gfc_trans_alloc_subarray_assign, gfc_trans_subcomponent_assign,
        gfc_conv_structure, gfc_trans_scalar_assign, copyable_array_p):
        Likewise.
        * trans-io.c (transfer_namelist_element, transfer_expr,
        gfc_trans_transfer): Likewise.
        * trans-stmt.c (gfc_trans_deallocate): Likewise.
        * trans-types.c (gfc_typenode_for_spec, gfc_copy_dt_decls_ifequal,
        gfc_get_derived_type): Likewise.

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

        * openmp.c (gfc_match_omp_clauses): Restructuralize, so that clause
        parsing is done in a big switch based on gfc_peek_ascii_char and
        individual clauses under their first letters are sorted too.

2016-05-02  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * trans-types.c (gfc_build_complex_type):

2016-05-02  Richard Biener  <rguenther@suse.de>

        * trans-array.c (gfc_trans_create_temp_array): Properly
        create a DECL_EXPR for the anonymous VLA array type.

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

        PR middle-end/70626
        * trans-openmp.c (gfc_trans_oacc_combined_directive): Duplicate
        the reduction clause in both parallel and loop directives.

2016-04-18  Michael Matz  <matz@suse.de>

        * trans-io.c (gfc_build_io_library_fndecls): Use SET_TYPE_ALIGN.
        * trans-common.c (build_common_decl): Use SET_DECL_ALIGN.
        * trans-types.c (gfc_add_field_to_struct): Use SET_DECL_ALIGN.

2016-04-13  Dominique d'Humieres  <dominiq@lps.ens.fr>

        PR fortran/67039
        * intrinsic.texi: Correct the documentation of pseudorandom
        number intrinsics.

2016-04-13  Dominique d'Humieres  <dominiq@lps.ens.fr>

        PR fortran/58000
        * gfortran.texi: Document OPEN( ... NAME=) as not implemented
        in GNU Fortran

2016-04-09  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/68566
        * array.c (match_array_element_spec): Add check for non-integer.
        * simplify.c (gfc_simplify_reshape): If source shape is NULL return.

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

        PR c/70436
        * openmp.c (gfc_find_omp_udr): Add explicit braces to resolve a
        future -Wparentheses warning.

2016-04-04  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/67538
        * resolve.c (resolve_allocate_expr): Emit error message when no
        array spec and no array valued source= expression is given in an
        F2008 allocate() for an array to allocate.

2016-04-04  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/65795
        * trans-array.c (gfc_array_allocate): When the array is a coarray,
        do not nullyfing its allocatable components in array_allocate, because
        the nullify missed the array ref and nullifies the wrong component.
        Cosmetics.

2016-03-29  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/70397
        * trans-expr.c (gfc_class_len_or_zero_get): Add function to return a
        constant zero tree, when the class to get the _len component from is
        not unlimited polymorphic.
        (gfc_copy_class_to_class): Use the new function.
        * trans.h: Added interface of new function gfc_class_len_or_zero_get.

2016-03-28  Alessandro Fanfarillo  <fanfarillo.gcc@gmail.com>

        * trans-decl.c (gfc_build_builtin_function_decls):
        caf_stop_numeric and caf_stop_str definition.
        * trans-stmt.c (gfc_trans_stop): invoke external functions
        for stop and stop_str when coarrays are used.
        * trans.h: extern for new functions.

2016-03-19  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/69043
        * scanner.c (load_file): Update to use S_ISREG macro.

2016-03-17  Thomas Schwinge  <thomas@codesourcery.com>

        * gfortran.h (enum gfc_omp_map_op): Rename OMP_MAP_FORCE_DEALLOC
        to OMP_MAP_DELETE.  Adjust all users.

2016-03-13  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
            Jim MacArthur  <jim.macarthur@codethink.co.uk>

        PR fortran/69043
        * scanner.c (load_file): Check that included file is regular.

2016-03-12  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
            Harold Anlauf  <anlauf@gmx.de>

        PR fortran/69520
        * invoke.texi: Explain use of the 'no-' construct within the
        -fcheck= option.
        * options.c (gfc_handle_runtime_check_option): Enable use of
        'no-' prefix for the various options with -fcheck= to allow
        negating previously enabled check options.

2016-03-12  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/70031
        * decl.c (gfc_match_prefix): Treat the 'module' prefix in the
        same way as the others, rather than fixing it to come last.
        (gfc_match_function_decl, gfc_match_subroutine): After errors
        in 'copy_prefix', emit them immediately in the case of module
        procedures to prevent a later ICE.

        PR fortran/69524
        * decl.c (gfc_match_submod_proc): Permit 'module procedure'
        declarations within the contains section of modules as well as
        submodules.
        * resolve.c (resolve_fl_procedure): Likewise.
        *trans-decl.c (build_function_decl): Change the gcc_assert to
        allow all forms of module procedure declarations within module
        contains sections.

2016-02-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/68147
        PR fortran/47674
        * frontend-passes.c (realloc_string_callback): Don't set
        walk_subtrees.

2016-02-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

        * dump-parse-tree.c (show_code_node):  Print association
        list of a block if present.  Handle EXEC_END_BLOCK.

2016-02-28  Harald Anlauf  <anlauf@gmx.de>
            Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/56007
        * match.c (gfc_match_iterator): Add diagnostic for array variable
        as do loop index.

2016-02-27  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
            Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/69910
        * io.c (gfc_match_open): Check that open status is an expression
        constant before comparing string to 'scratch' with NEWUNIT.

2016-02-27  Alessandro Fanfarillo  <fanfarillo.gcc@gmail.com>

        * trans.c (gfc_allocate_allocatable): size conversion
        from byte to number of elements for event variables.
        * trans-types.c (gfc_get_derived_type): event variables
        represented as a pointer (like lock variable).

2016-02-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/61156
        * scanner.c (add_path_to_list): If include path is not a directory,
        issue a fatal error.

2016-02-23  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/67451
        * trans-array.c (gfc_array_allocate): Take the attributes from the
        expression to allocate and not from the source=-expression.

2016-02-20  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/69423
        * trans-decl.c (create_function_arglist): Deferred character
        length functions, with and without declared results, address
        the passed reference type as '.result' and the local string
        length as '..result'.
        (gfc_null_and_pass_deferred_len): Helper function to null and
        return deferred string lengths, as needed.
        (gfc_trans_deferred_vars): Call it, thereby reducing repeated
        code, add call for deferred arrays and reroute pointer function
        results. Avoid using 'tmp' for anything other that a temporary
        tree by introducing 'type_of_array' for the arrayspec type.

2015-02-16  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/69742
        * frontend-passes.c (cfe-expr_0):  Don't register functions
        from within an ASSOCIATE statement.

2016-02-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/60526
        * decl.c (build_sym):  If the name has already been defined as a
        type, it has a symtree with an upper case letter at the beginning.
        If such a symtree exists, issue an error and exit.  Don't do
        this if there is no corresponding upper case letter.

2016-02-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/60526
        PR bootstrap/69816
        * decl.c (build_sym):  Reverted previous patch.

2016-02-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/60526
        * decl.c (build_sym):  If the name has already been defined as a
        type, issue error and return false.

2016-02-12  David Malcolm  <dmalcolm@redhat.com>

        PR other/69554
        * error.c (gfc_diagnostic_start_span): New function.
        (gfc_diagnostics_init): Initialize global_dc's start_span.

2016-02-11  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/69296
        * gfortran.h: Added flag to gfc_association_list indicating that
        the rank of an associate variable has been guessed only.
        * parse.c (parse_associate): Set the guess flag mentioned above
        when guessing the rank of an expression.
        * resolve.c (resolve_assoc_var): When the rank has been guessed,
        make sure, that the guess was correct else overwrite with the actual
        rank.
        * trans-stmt.c (trans_associate_var): For subref_array_pointers in
        class objects, take the span from the _data component.

2016-02-07  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/50555
        * primary.c (match_actual_arg): If symbol has attribute flavor of
        namelist, generate an error. (gfc_match_rvalue): Likewise return
        MATCH_ERROR.
        * resolve.c (resolve_symbol): Scan arument list of procedures and
        generate an error if a namelist is found.

2016-02-05  Mikael Morin  <mikael@gcc.gnu.org>

        PR fortran/66089
        * trans-expr.c (expr_is_variable, gfc_expr_is_variable): Rename
        the former to the latter and make it non-static.  Update callers.
        * gfortran.h (gfc_expr_is_variable): New declaration.
        (struct gfc_ss_info): Add field needs_temporary.
        * trans-array.c (gfc_scalar_elemental_arg_saved_as_argument):
        Tighten the condition on aggregate expressions with a check
        that the expression is a variable and doesn't need a temporary.
        (gfc_conv_resolve_dependency): Add intermediary reference variable.
        Set the needs_temporary field.

2016-02-03  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/67451
        PR fortran/69418
        * trans-expr.c (gfc_copy_class_to_class): For coarrays just the
        pointer is passed.  Take it as is without trying to deref the
        _data component.
        * trans-stmt.c (gfc_trans_allocate): Take care of coarrays as
        argument to source=-expression.

2016-02-02  Nathan Sidwell  <nathan@codesourcery.com>

        * lang.opt (fopenacc-dim=): New option.

2016-01-31  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/67564
        * trans-expr.c (gfc_conv_procedure_call): For the vtable copy
        subroutines, add a string length argument, when the actual
        argument is an unlimited polymorphic class object.

2016-01-30  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/69566
        * trans-expr.c (gfc_conv_procedure_call): Correct expression
        for 'ulim_copy', which was missing a test for 'comp'.

2016-01-28  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/62536
        * decl.c (gfc_match_end): Only unnest and remove BLOCK namespaces
        when the END encountered does not match a BLOCK's end.

2016-01-27  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/69484
        * invoke.texi: Fix documentation of -Wall with respect to -Wtabs.

2016-01-27  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/69422
        * trans-expr.c (is_scalar_reallocatable_lhs): Remove the check
        for allocatable components, whilst checking if the symbol is a
        derived or class entity..

2016-01-26  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/69385
        * trans-expr.c (gfc_trans_assignment_1): Exclude initialization
        assignments from check on assignment of scalars to unassigned
        arrays and correct wrong code within the corresponding block.

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

        PR other/69006
        * error.c (gfc_diagnostic_starter): Delete use of pp_newline.

2016-01-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/69397
        PR fortran/68442
        * interface.c (gfc_arglist_matches_symbol): Replace assert with
        a return false if not a procedure.
        * resolve.c (resolve_generic_f): Test if we are resolving an
        initialization expression and adjust error message accordingly.

2016-01-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/66094
        * frontend-passes.c (matmul_lhs_realloc):  Add
        forgotten break statement.

2016-01-24  Dominique d'Humieres  <dominiq@lps.ens.fr>

        PR fortran/68283
        * primary.c (gfc_variable_attr): revert revision r221955,
        call gfc_internal_error only if there is no error.

2016-01-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/66094
        * frontend-passes.c (enum matrix_case):  Add case A2B2T for
        MATMUL(A,TRANSPoSE(B)) where A and B are rank 2.
        (inline_limit_check):  Also add A2B2T.
        (matmul_lhs_realloc):  Handle A2B2T.
        (check_conjg_variable):  Rename to
        (check_conjg_transpose_variable):  and also count TRANSPOSE.
        (inline_matmul_assign):  Handle A2B2T.

2016-01-21  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/65996
        * error.c (gfc_error): Save the state of abort_on_error and set
        it to false for buffered errors to allow normal processing.
        Restore the state before leaving.

2016-01-19  Martin Jambor  <mjambor@suse.cz>

        * types.def (BT_FN_VOID_UINT_PTR_INT_PTR): New.
        (BT_FN_VOID_INT_OMPFN_SIZE_PTR_PTR_PTR_UINT_PTR_INT_INT): Removed.
        (BT_FN_VOID_INT_OMPFN_SIZE_PTR_PTR_PTR_UINT_PTR_PTR): New.

2016-01-15  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/64324
        * resolve.c (check_uop_procedure): Prevent deferred length
        characters from being trapped by assumed length error.

        PR fortran/49630
        PR fortran/54070
        PR fortran/60593
        PR fortran/60795
        PR fortran/61147
        PR fortran/64324
        * trans-array.c (gfc_conv_scalarized_array_ref): Pass decl for
        function as well as variable expressions.
        (gfc_array_init_size): Add 'expr' as an argument. Use this to
        correctly set the descriptor dtype for deferred characters.
        (gfc_array_allocate): Add 'expr' to the call to
        'gfc_array_init_size'.
        * trans.c (gfc_build_array_ref): Expand logic for setting span
        to include indirect references to character lengths.
        * trans-decl.c (gfc_get_symbol_decl): Ensure that deferred
        result char lengths that are PARM_DECLs are indirectly
        referenced both for directly passed and by reference.
        (create_function_arglist): If the length type is a pointer type
        then store the length as the 'passed_length' and make the char
        length an indirect reference to it.
        (gfc_trans_deferred_vars): If a character length has escaped
        being set as an indirect reference, return it via the 'passed
        length'.
        * trans-expr.c (gfc_conv_procedure_call): The length of
        deferred character length results is set TREE_STATIC and set to
        zero.
        (gfc_trans_assignment_1): Do not fix the rse string_length if
        it is a variable, a parameter or an indirect reference. Add the
        code to trap assignment of scalars to unallocated arrays.
        * trans-stmt.c (gfc_trans_allocate): Remove 'def_str_len' and
        all references to it. Instead, replicate the code to obtain a
        explicitly defined string length and provide a value before
        array allocation so that the dtype is correctly set.
        trans-types.c (gfc_get_character_type): If the character length
        is a pointer, use the indirect reference.

2016-01-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/69154
        * frontend-passes.c (in_where):  New variable.
        (inline_matmul_assign):  Don't try this if we are within
        a WHERE statement.
        (gfc_code_walker):  Keep track of in_where.

2016-01-10  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/67779
        * trans_array.c (gfc_conv_scalarized_array_ref): Add missing
        se->use_offset from condition for calculation of 'base'.

2016-01-08  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/69128
        * trans.h (OMPWS_SCALARIZER_BODY): Define.
        (OMPWS_NOWAIT): Renumber.
        * trans-stmt.c (gfc_trans_where_3): Only set OMPWS_SCALARIZER_WS
        if OMPWS_SCALARIZER_BODY is not set already, and set also
        OMPWS_SCALARIZER_BODY until the final loop creation.
        * trans-expr.c (gfc_trans_assignment_1): Likewise.
        * trans-openmp.c (gfc_trans_omp_workshare): Also clear
        OMPWS_SCALARIZER_BODY.
        * trans-array.c (gfc_trans_scalarized_loop_end): Don't create
        OMP_FOR if OMPWS_SCALARIZER_BODY is set.

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

        Update copyright years.

        * gfortranspec.c (lang_specific_driver): Update copyright notice
        dates.
        * gfc-internals.texi: Bump @copying's copyright year.
        * gfortran.texi: Ditto.
        * intrinsic.texi: Ditto.
        * invoke.texi: Ditto.

2016-01-01  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/68864
        * trans-array.c (evaluate_bound): If deferred, test that 'desc'
        is an array descriptor before using gfc_conv_descriptor_xxx.
\f
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