[thirdparty/gcc.git] / gcc / fortran / ChangeLog

2021-09-21  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/55534
        * cpp.c: Define GCC_C_COMMON_C for #include "options.h" to make
        cpp_reason_option_codes available.
        (gfc_cpp_register_include_paths): Make static, set pfile's
        warn_missing_include_dirs and move before caller.
        (gfc_cpp_init_cb): New, cb code moved from ...
        (gfc_cpp_init_0): ... here.
        (gfc_cpp_post_options): Call gfc_cpp_init_cb.
        (cb_cpp_diagnostic_cpp_option): New. As implemented in c-family
        to match CppReason flags to -W... names.
        (cb_cpp_diagnostic): Use it to replace single special case.
        * cpp.h (gfc_cpp_register_include_paths): Remove as now static.
        * gfortran.h (gfc_check_include_dirs): New prototype.
        (gfc_add_include_path): Add new bool arg.
        * options.c (gfc_init_options): Don't set -Wmissing-include-dirs.
        (gfc_post_options): Set it here after commandline processing. Call
        gfc_add_include_path with defer_warn=false.
        (gfc_handle_option): Call it with defer_warn=true.
        * scanner.c (gfc_do_check_include_dir, gfc_do_check_include_dirs,
        gfc_check_include_dirs): New. Diagnostic moved from ...
        (add_path_to_list): ... here, which came before cmdline processing.
        Take additional bool defer_warn argument.
        (gfc_add_include_path): Take additional defer_warn arg.
        * scanner.h (struct gfc_directorylist): Reorder for alignment issues,
        add new 'bool warn'.

2021-09-20  Tobias Burnus  <tobias@codesourcery.com>

        * gfortran.h (gfc_omp_clauses): Add order_unconstrained.
        * dump-parse-tree.c (show_omp_clauses): Dump it.
        * openmp.c (gfc_match_omp_clauses): Match unconstrained/reproducible
        modifiers to ordered(concurrent).
        (OMP_DISTRIBUTE_CLAUSES): Accept ordered clause.
        (resolve_omp_clauses): Reject ordered + order on same directive.
        * trans-openmp.c (gfc_trans_omp_clauses, gfc_split_omp_clauses): Pass
        on unconstrained modifier of ordered(concurrent).

2021-09-17  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/102366
        * trans-decl.c (gfc_finish_var_decl): Disable the warning message
        for variables moved from stack to static storange if they are
        declared in the main, but allow the move to happen.

2021-09-17  Sandra Loosemore  <sandra@codesourcery.com>

        * intrinsic.texi (ISO_C_BINDING): Change C_FLOAT128 to correspond
        to _Float128 rather than __float128.
        * iso-c-binding.def (c_float128): Update comments.
        * trans-intrinsic.c (gfc_builtin_decl_for_float_kind): Likewise.
        (build_round_expr): Likewise.
        (gfc_build_intrinsic_lib_fndcecls): Likewise.
        * trans-types.h (gfc_real16_is_float128): Likewise.

2021-09-16  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/102287
        * trans-expr.c (gfc_conv_procedure_call): Wrap deallocation of
        allocatable components of optional allocatable derived type
        procedure arguments with INTENT(OUT) into a presence check.

2021-09-14  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/102311
        * resolve.c (resolve_entries): Attempt to recover cleanly after
        rejecting mismatched function entries.

2021-09-14  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/102313
        * parse.c (gfc_ascii_statement): Add missing ST_OMP_END_SCOPE.

2021-09-13  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/82314
        * decl.c (add_init_expr_to_sym): For proper initialization of
        array-valued named constants the array bounds need to be
        simplified before adding the initializer.

2021-09-13  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/85130
        * expr.c (find_substring_ref): Handle given substring start and
        end indices as signed integers, not unsigned.

2021-09-09  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/98490
        * trans-expr.c (gfc_conv_substring): Do not generate substring
        bounds check for implied do loop index variable before it actually
        becomes defined.

2021-09-08  liuhongt  <hongtao.liu@intel.com>

        * options.c (gfc_post_options): Issue an error for
        -fexcess-precision=16.

2021-09-07  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/101327
        * expr.c (find_array_element): When bounds cannot be determined as
        constant, return error instead of aborting.

2021-09-07  Marcel Vollweiler  <marcel@codesourcery.com>

        * openmp.c (gfc_match_omp_flush): Parse 'seq_cst' clause on 'flush'
        directive.
        * trans-openmp.c (gfc_trans_omp_flush): Handle OMP_MEMORDER_SEQ_CST.

2021-09-03  Tobias Burnus  <tobias@codesourcery.com>

        * decl.c (gfc_verify_c_interop_param): Reject pointer with
        CONTIGUOUS attributes as dummy arg. Reject character len > 1
        when passed as byte stream.

2021-09-01  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/56985
        * resolve.c (resolve_common_vars): Fix grammar and improve wording
        of error message rejecting an unlimited polymorphic in COMMON.

2021-08-31  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/100950
        * simplify.c (substring_has_constant_len): Minimize checks for
        substring expressions being allowed.

2021-08-31  Marcel Vollweiler  <marcel@codesourcery.com>

        * gfortran.h: Add variable for 'ancestor' in struct gfc_omp_clauses.
        * openmp.c (gfc_match_omp_clauses): Parse device-modifiers 'device_num'
        and 'ancestor' in 'target device' clauses.
        * trans-openmp.c (gfc_trans_omp_clauses): Set OMP_CLAUSE_DEVICE_ANCESTOR.

2021-08-30  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/102113
        * match.c (gfc_match_goto): Allow for whitespace in parsing list
        of labels.

2021-08-30  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/101349
        * resolve.c (resolve_allocate_expr): An unlimited polymorphic
        argument to ALLOCATE must be ALLOCATABLE or a POINTER.  Fix the
        corresponding check.

2021-08-28  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/87737
        * resolve.c (resolve_entries): For functions of type CHARACTER
        tighten the checks for matching characteristics.

2021-08-25  Lewis Hyatt  <lhyatt@gmail.com>

        PR other/93067
        * cpp.c (gfc_cpp_post_options): Call new function
        diagnostic_initialize_input_context().

2021-08-24  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/98411
        * trans-decl.c (gfc_finish_var_decl): Adjust check to handle
        implicit SAVE as well as variables in the main program.  Improve
        warning message text.

2021-08-23  Tobias Burnus  <tobias@codesourcery.com>

        * openmp.c (gfc_match_dupl_check, gfc_match_dupl_memorder,
        gfc_match_dupl_atomic): New.
        (gfc_match_omp_clauses): Use them; remove duplicate
        'release'/'relaxed' clause matching; improve error dignostic
        for 'default'.

2021-08-23  Tobias Burnus  <tobias@codesourcery.com>

        * dump-parse-tree.c (show_omp_clauses): Handle 'strict' modifier
        on grainsize/num_tasks
        * gfortran.h (gfc_omp_clauses): Add grainsize_strict
        and num_tasks_strict.
        * trans-openmp.c (gfc_trans_omp_clauses, gfc_split_omp_clauses):
        Handle 'strict' modifier on grainsize/num_tasks.
        * openmp.c (gfc_match_omp_clauses): Likewise.

2021-08-20  Tobias Burnus  <tobias@codesourcery.com>

        * error.c
        (error_uinteger): Take 'long long unsigned' instead
        of 'long unsigned' as argumpent.
        (error_integer): Take 'long long' instead of 'long'.
        (error_hwuint, error_hwint): New.
        (error_print): Update to handle 'll' and 'w'
        length modifiers.
        * simplify.c (substring_has_constant_len): Use '%wd'
        in gfc_error.

2021-08-20  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/100950
        * simplify.c (substring_has_constant_len): Fix format string of
        gfc_error, pass HOST_WIDE_INT bounds values via char buffer.

2021-08-20  Tobias Burnus  <tobias@codesourcery.com>

        * dump-parse-tree.c (show_omp_clauses): Handle 'at', 'severity'
        and 'message' clauses.
        (show_omp_node, show_code_node): Handle EXEC_OMP_ERROR.
        * gfortran.h (gfc_statement): Add ST_OMP_ERROR.
        (gfc_omp_severity_type, gfc_omp_at_type): New.
        (gfc_omp_clauses): Add 'at', 'severity' and 'message' clause;
        use more bitfields + ENUM_BITFIELD.
        (gfc_exec_op): Add EXEC_OMP_ERROR.
        * match.h (gfc_match_omp_error): New.
        * openmp.c (enum omp_mask1): Add OMP_CLAUSE_(AT,SEVERITY,MESSAGE).
        (gfc_match_omp_clauses): Handle new clauses.
        (OMP_ERROR_CLAUSES, gfc_match_omp_error): New.
        (resolve_omp_clauses): Resolve new clauses.
        (omp_code_to_statement, gfc_resolve_omp_directive): Handle
        EXEC_OMP_ERROR.
        * parse.c (decode_omp_directive, next_statement,
        gfc_ascii_statement): Handle 'omp error'.
        * resolve.c (gfc_resolve_blocks): Likewise.
        * st.c (gfc_free_statement): Likewise.
        * trans-openmp.c (gfc_trans_omp_error): Likewise.
        (gfc_trans_omp_directive): Likewise.
        * trans.c (trans_code): Likewise.

2021-08-20  Jakub Jelinek  <jakub@redhat.com>

        * types.def (BT_FN_VOID_CONST_PTR_SIZE): New DEF_FUNCTION_TYPE_2.
        * f95-lang.c (ATTR_COLD_NORETURN_NOTHROW_LEAF_LIST): Define.

2021-08-19  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/100950
        * simplify.c (substring_has_constant_len): New.
        (gfc_simplify_len): Handle case of substrings with constant
        bounds.

2021-08-18  Tobias Burnus  <tobias@codesourcery.com>

        * match.h (gfc_match_omp_nothing): New.
        * openmp.c (gfc_match_omp_nothing): New.
        * parse.c (decode_omp_directive): Match 'nothing' directive.

2021-08-17  Tobias Burnus  <tobias@codesourcery.com>

        * dump-parse-tree.c (show_omp_node, show_code_node): Handle
        EXEC_OMP_SCOPE.
        * gfortran.h (enum gfc_statement): Add ST_OMP_(END_)SCOPE.
        (enum gfc_exec_op): Add EXEC_OMP_SCOPE.
        * match.h (gfc_match_omp_scope): New.
        * openmp.c (OMP_SCOPE_CLAUSES): Define
        (gfc_match_omp_scope): New.
        (gfc_match_omp_cancellation_point, gfc_match_omp_end_nowait):
        Improve error diagnostic.
        (omp_code_to_statement): Handle ST_OMP_SCOPE.
        (gfc_resolve_omp_directive): Handle EXEC_OMP_SCOPE.
        * parse.c (decode_omp_directive, next_statement,
        gfc_ascii_statement, parse_omp_structured_block,
        parse_executable): Handle OpenMP's scope construct.
        * resolve.c (gfc_resolve_blocks): Likewise
        * st.c (gfc_free_statement): Likewise
        * trans-openmp.c (gfc_trans_omp_scope): New.
        (gfc_trans_omp_directive): Call it.
        * trans.c (trans_code): handle EXEC_OMP_SCOPE.

2021-08-16  Tobias Burnus  <tobias@codesourcery.com>

        * dump-parse-tree.c (show_omp_clauses): Handle 'filter' clause.
        (show_omp_node, show_code_node): Handle (combined) omp masked construct.
        * frontend-passes.c (gfc_code_walker): Likewise.
        * gfortran.h (enum gfc_statement): Add ST_OMP_*_MASKED*.
        (enum gfc_exec_op): Add EXEC_OMP_*_MASKED*.
        * match.h (gfc_match_omp_masked, gfc_match_omp_masked_taskloop,
        gfc_match_omp_masked_taskloop_simd, gfc_match_omp_parallel_masked,
        gfc_match_omp_parallel_masked_taskloop,
        gfc_match_omp_parallel_masked_taskloop_simd): New prototypes.
        * openmp.c (enum omp_mask1): Add OMP_CLAUSE_FILTER.
        (gfc_match_omp_clauses): Match it.
        (OMP_MASKED_CLAUSES, gfc_match_omp_parallel_masked,
        gfc_match_omp_parallel_masked_taskloop,
        gfc_match_omp_parallel_masked_taskloop_simd,
        gfc_match_omp_masked, gfc_match_omp_masked_taskloop,
        gfc_match_omp_masked_taskloop_simd): New.
        (resolve_omp_clauses): Resolve filter clause.
        (gfc_resolve_omp_parallel_blocks, resolve_omp_do,
        omp_code_to_statement, gfc_resolve_omp_directive): Handle
        omp masked constructs.
        * parse.c (decode_omp_directive, case_exec_markers,
        gfc_ascii_statement, parse_omp_do, parse_omp_structured_block,
        parse_executable): Likewise.
        * resolve.c (gfc_resolve_blocks, gfc_resolve_code): Likewise.
        * st.c (gfc_free_statement): Likewise.
        * trans-openmp.c (gfc_trans_omp_clauses): Handle filter clause.
        (GFC_OMP_SPLIT_MASKED, GFC_OMP_MASK_MASKED): New enum values.
        (gfc_trans_omp_masked): New.
        (gfc_split_omp_clauses): Handle combined masked directives.
        (gfc_trans_omp_master_taskloop): Rename to ...
        (gfc_trans_omp_master_masked_taskloop): ... this; handle also
        combined masked directives.
        (gfc_trans_omp_parallel_master): Rename to ...
        (gfc_trans_omp_parallel_master_masked): ... this; handle
        combined masked directives.
        (gfc_trans_omp_directive): Handle EXEC_OMP_*_MASKED*.
        * trans.c (trans_code): Likewise.

2021-08-15  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/99351
        * match.c (sync_statement): Replace %v code by %e in gfc_match to
        allow for function references as STAT and ERRMSG arguments.
        * resolve.c (resolve_sync): Adjust checks of STAT= and ERRMSG= to
        being definable arguments.  Function references with a data
        pointer result are accepted.
        * trans-stmt.c (gfc_trans_sync): Adjust assertion.

2021-08-12  Tobias Burnus  <tobias@codesourcery.com>

        * gfortran.h (gfc_omp_proc_bind_kind): Add OMP_PROC_BIND_PRIMARY.
        * dump-parse-tree.c (show_omp_clauses): Add TODO comment to
        change 'master' to 'primary' in proc_bind for OpenMP 5.1.
        * intrinsic.texi (OMP_LIB): Mention OpenMP 5.1; add
        omp_proc_bind_primary.
        * openmp.c (gfc_match_omp_clauses): Accept
        'primary' as alias for 'master'.
        * trans-openmp.c (gfc_trans_omp_clauses): Handle
        OMP_PROC_BIND_PRIMARY.

2021-08-11  Sandra Loosemore  <sandra@codesourcery.com>

        * iso-c-binding.def (c_float128, c_float128_complex): Check
        float128_type_node instead of gfc_float128_type_node.
        * trans-types.c (gfc_init_kinds, gfc_build_real_type):
        Update comments re supported 128-bit floating-point types.

2021-08-11  Richard Biener  <rguenther@suse.de>

        * trans-common.c (create_common): Set TREE_THIS_VOLATILE on the
        COMPONENT_REF if the field is volatile.

2021-08-07  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/68568
        * primary.c (gfc_expr_attr): Variable attribute can only be
        inquired when symtree is non-NULL.

2021-07-28  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/101564
        * expr.c (gfc_check_vardef_context): Add check for KIND and LEN
        parameter inquiries.
        * match.c (gfc_match): Fix comment for %v code.
        (gfc_match_allocate, gfc_match_deallocate): Replace use of %v code
        by %e in gfc_match to allow for function references as STAT and
        ERRMSG arguments.
        * resolve.c (resolve_allocate_deallocate): Avoid NULL pointer
        dereferences and shortcut for bad STAT and ERRMSG argument to
        (DE)ALLOCATE.  Remove bogus parts of checks for STAT and ERRMSG.

2021-07-26  José Rui Faustino de Sousa  <jrfsousa@gmail.com>
            Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/93308
        PR fortran/93963
        PR fortran/94327
        PR fortran/94331
        PR fortran/97046
        * trans-decl.c (convert_CFI_desc): Only copy out the descriptor
        if necessary.
        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Updated attribute
        handling which reflect a previous intermediate version of the
        standard. Only copy out the descriptor if necessary.

2021-07-23  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/101536
        * check.c (array_check): Adjust check for the case of CLASS
        arrays.

2021-07-21  Thomas Schwinge  <thomas@codesourcery.com>
            Joseph Myers  <joseph@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>

        * dump-parse-tree.c (show_attr): Update.
        * gfortran.h (symbol_attribute): Add 'oacc_routine_nohost' member.
        (gfc_omp_clauses): Add 'nohost' member.
        * module.c (ab_attribute): Add 'AB_OACC_ROUTINE_NOHOST'.
        (attr_bits, mio_symbol_attribute): Update.
        * openmp.c (omp_mask2): Add 'OMP_CLAUSE_NOHOST'.
        (gfc_match_omp_clauses): Handle 'OMP_CLAUSE_NOHOST'.
        (OACC_ROUTINE_CLAUSES): Add 'OMP_CLAUSE_NOHOST'.
        (gfc_match_oacc_routine): Update.
        * trans-decl.c (add_attributes_to_decl): Update.
        * trans-openmp.c (gfc_trans_omp_clauses): Likewise.

2021-07-21  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/101514
        * target-memory.c (gfc_interpret_derived): Size of array component
        of derived type can only be computed here for explicit shape.
        * trans-types.c (gfc_get_nodesc_array_type): Do not dereference
        NULL pointers.

2021-07-21  Tobias Burnus  <tobias@codesourcery.com>

        * decl.c (gfc_verify_c_interop_param): Update for F2008 + F2018
        changes; reject unsupported bits with 'Error: Sorry,'.
        * trans-expr.c (gfc_conv_procedure_call): Fix condition to
        For using CFI descriptor with characters.

2021-07-18  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/101084
        * io.c (resolve_tag_format): Extend FORMAT check to unknown type.

2021-07-14  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/100949
        * trans-expr.c (gfc_trans_class_init_assign): Call
        gfc_conv_expr_present only for dummy variables.

2021-07-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/100227
        * frontend-passes.c (traverse_io_block): Adjust test for
        when a variable is eligible for the transformation to
        array slice.

2021-06-28  Martin Sebor  <msebor@redhat.com>

        * trans-array.c (trans_array_constructor): Replace direct uses
        of TREE_NO_WARNING with warning_suppressed_p, and suppress_warning.
        * trans-decl.c (gfc_build_qualified_array): Same.
        (gfc_build_dummy_array_decl): Same.
        (generate_local_decl): Same.
        (gfc_generate_function_code): Same.
        * trans-openmp.c (gfc_omp_clause_default_ctor): Same.
        (gfc_omp_clause_copy_ctor): Same.
        * trans-types.c (get_dtype_type_node): Same.
        (gfc_get_desc_dim_type): Same.
        (gfc_get_array_descriptor_base): Same.
        (gfc_get_caf_vector_type): Same.
        (gfc_get_caf_reference_type): Same.
        * trans.c (gfc_create_var_np): Same.

2021-06-23  Tobias Burnus  <tobias@codesourcery.com>

        * dump-parse-tree.c (show_omp_clauses): Fix enum type used
        for dumping gfc_omp_defaultmap_category.

2021-06-23  Andre Vehreschild  <vehre@gcc.gnu.org>

        PR fortran/100337
        * trans-intrinsic.c (conv_co_collective): Check stat for null ptr
        before dereferrencing.

2021-06-18  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/100283
        PR fortran/101123
        * trans-intrinsic.c (gfc_conv_intrinsic_minmax): Unconditionally
        convert result of min/max to result type.

2021-06-16  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/95501
        PR fortran/95502
        * expr.c (gfc_check_pointer_assign): Avoid NULL pointer
        dereference.
        * match.c (gfc_match_pointer_assignment): Likewise.
        * parse.c (gfc_check_do_variable): Avoid comparison with NULL
        symtree.

2021-06-16  Harald Anlauf  <anlauf@gmx.de>

        Revert:
        2021-06-16  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/95501
        PR fortran/95502
        * expr.c (gfc_check_pointer_assign): Avoid NULL pointer
        dereference.
        * match.c (gfc_match_pointer_assignment): Likewise.
        * parse.c (gfc_check_do_variable): Avoid comparison with NULL
        symtree.

2021-06-16  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/95501
        PR fortran/95502
        * expr.c (gfc_check_pointer_assign): Avoid NULL pointer
        dereference.
        * match.c (gfc_match_pointer_assignment): Likewise.
        * parse.c (gfc_check_do_variable): Avoid comparison with NULL
        symtree.

2021-06-15  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/92568
        * dump-parse-tree.c (show_omp_clauses): Update for defaultmap.
        * f95-lang.c (LANG_HOOKS_OMP_ALLOCATABLE_P,
        LANG_HOOKS_OMP_SCALAR_TARGET_P): New.
        * gfortran.h (enum gfc_omp_defaultmap,
        enum gfc_omp_defaultmap_category): New.
        * openmp.c (gfc_match_omp_clauses): Update defaultmap matching.
        * trans-decl.c (gfc_finish_decl_attrs): Set GFC_DECL_SCALAR_TARGET.
        * trans-openmp.c (gfc_omp_allocatable_p, gfc_omp_scalar_target_p): New.
        (gfc_omp_scalar_p): Take 'ptr_alloc_ok' argument.
        (gfc_trans_omp_clauses, gfc_split_omp_clauses): Update for
        defaultmap changes.
        * trans.h (gfc_omp_scalar_p): Update prototype.
        (gfc_omp_allocatable_p, gfc_omp_scalar_target_p): New.
        (struct lang_decl): Add scalar_target.
        (GFC_DECL_SCALAR_TARGET, GFC_DECL_GET_SCALAR_TARGET): New.

2021-06-14  Tobias Burnus  <tobias@codesourcery.com>

        * resolve.c (resolve_variable): Remove *XCNEW used to
        nullify nullified memory.

2021-06-09  Martin Liska  <mliska@suse.cz>

        * intrinsic.texi: Add missing @headitem to tables with a header.

2021-06-09  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/100965
        * trans-openmp.c (gfc_omp_finish_clause): Gimplify OMP_CLAUSE_SIZE.

2021-06-08  Tobias Burnus  <tobias@codesourcery.com>

        PR middle-end/99928
        * trans-openmp.c (gfc_add_clause_implicitly): New.
        (gfc_split_omp_clauses): Use it.
        (gfc_free_split_omp_clauses): New.
        (gfc_trans_omp_do_simd, gfc_trans_omp_parallel_do,
        gfc_trans_omp_parallel_do_simd, gfc_trans_omp_distribute,
        gfc_trans_omp_teams, gfc_trans_omp_target, gfc_trans_omp_taskloop,
        gfc_trans_omp_master_taskloop, gfc_trans_omp_parallel_master): Use it.

2021-06-08  Martin Liska  <mliska@suse.cz>

        * intrinsic.texi: Fix typo.
        * trans-expr.c (gfc_trans_pointer_assignment): Likewise.

2021-06-05  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

        PR fortran/100120
        PR fortran/100816
        PR fortran/100818
        PR fortran/100819
        PR fortran/100821
        * trans-array.c (gfc_get_array_span): rework the way character
        array "span" was calculated.
        (gfc_conv_expr_descriptor): improve handling of character sections
        and unlimited polymorphic objects.
        * trans-expr.c (gfc_get_character_len): new function to calculate
        character string length.
        (gfc_get_character_len_in_bytes): new function to calculate
        character string length in bytes.
        (gfc_conv_scalar_to_descriptor): add call to set the "span".
        (gfc_trans_pointer_assignment): set "_len" and antecipate the
        initialization of the deferred character length hidden argument.
        * trans-intrinsic.c (gfc_conv_associated): set "force_no_tmp" to
        avoid the creation of a temporary.
        * trans-types.c (gfc_get_dtype_rank_type): rework type detection
        so that unlimited polymorphic objects get proper type infomation,
        also important for bind(c).
        (gfc_get_dtype): add argument to pass the rank if necessary.
        (gfc_get_array_type_bounds): cosmetic change to have character
        arrays called character instead of unknown.
        * trans-types.h (gfc_get_dtype): modify prototype.
        * trans.c (get_array_span): rework the way character array "span"
        was calculated.
        * trans.h (gfc_get_character_len): new prototype.
        (gfc_get_character_len_in_bytes): new prototype.
        Add "unlimited_polymorphic" flag to "gfc_se" type to signal when
        expression carries an unlimited polymorphic object.

2021-06-04  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/99839
        * frontend-passes.c (inline_matmul_assign): Do not inline matmul
        if the assignment to the resulting array if it is not of canonical
        type (real/integer/complex/logical).

2021-06-04  Tobias Burnus  <tobias@codesourcery.com>

        * dump-parse-tree.c (show_code_node): Handle
        EXEC_OMP_(TARGET_)(,PARALLEL_,TEAMS_)LOOP.

2021-06-04  Tobias Burnus  <tobias@codesourcery.com>

        * scanner.c (skip_fixed_omp_sentinel): Set openacc_flag if
        this is not an (OpenMP) continuation line.
        (skip_fixed_oacc_sentinel): Likewise for openmp_flag and OpenACC.
        (gfc_next_char_literal): gfc_error_now to force error for mixed OMP/ACC
        continuation once per location and return '\n'.

2021-06-04  Tobias Burnus  <tobias@codesourcery.com>

        PR middle-end/99928
        * openmp.c (gfc_match_omp_clauses): Fix typo in error message.

2021-06-04  Tobias Burnus  <tobias@codesourcery.com>

        PR middle-end/99928
        * dump-parse-tree.c (show_omp_clauses): Handle bind clause.
        (show_omp_node): Handle loop directive.
        * frontend-passes.c (gfc_code_walker): Likewise.
        * gfortran.h (enum gfc_statement): Add
        ST_OMP_(END_)(TARGET_)(|PARALLEL_|TEAMS_)LOOP.
        (enum gfc_omp_bind_type): New.
        (gfc_omp_clauses): Use it.
        (enum gfc_exec_op): Add EXEC_OMP_(TARGET_)(|PARALLEL_|TEAMS_)LOOP.
        * match.h (gfc_match_omp_loop, gfc_match_omp_parallel_loop,
        gfc_match_omp_target_parallel_loop, gfc_match_omp_target_teams_loop,
        gfc_match_omp_teams_loop): New.
        * openmp.c (enum omp_mask1): Add OMP_CLAUSE_BIND.
        (gfc_match_omp_clauses): Handle it.
        (OMP_LOOP_CLAUSES, gfc_match_omp_loop, gfc_match_omp_teams_loop,
        gfc_match_omp_target_teams_loop, gfc_match_omp_parallel_loop,
        gfc_match_omp_target_parallel_loop): New.
        (resolve_omp_clauses, resolve_omp_do, omp_code_to_statement,
        gfc_resolve_omp_directive): Handle omp loop.
        * parse.c (decode_omp_directive case_exec_markers, gfc_ascii_statement,
        parse_omp_do, parse_executable): Likewise.
        (parse_omp_structured_block): Remove ST_ which use parse_omp_do.
        * resolve.c (gfc_resolve_blocks): Add omp loop.
        * st.c (gfc_free_statement): Likewise.
        * trans-openmp.c (gfc_trans_omp_clauses): Handle bind clause.
        (gfc_trans_omp_do, gfc_trans_omp_parallel_do, gfc_trans_omp_distribute,
        gfc_trans_omp_teams, gfc_trans_omp_target, gfc_trans_omp_directive):
        Handle loop directive.
        (gfc_split_omp_clauses): Likewise; fix firstprivate/lastprivate
        and (in_)reduction for taskloop.
        * trans.c (trans_code): Handle omp loop directive.

2021-06-01  Tobias Burnus  <tobias@codesourcery.com>

        PR middle-end/99928
        * dump-parse-tree.c (show_omp_node, show_code_node): Handle
        (parallel) master taskloop (simd).
        * frontend-passes.c (gfc_code_walker): Set in_omp_workshare
        to false for parallel master taskloop (simd).
        * gfortran.h (enum gfc_statement):
        Add ST_OMP_(END_)(PARALLEL_)MASTER_TASKLOOP(_SIMD).
        (enum gfc_exec_op): EXEC_OMP_(PARALLEL_)MASTER_TASKLOOP(_SIMD).
        * match.h (gfc_match_omp_master_taskloop,
        gfc_match_omp_master_taskloop_simd,
        gfc_match_omp_parallel_master_taskloop,
        gfc_match_omp_parallel_master_taskloop_simd): New prototype.
        * openmp.c (gfc_match_omp_parallel_master_taskloop,
        gfc_match_omp_parallel_master_taskloop_simd,
        gfc_match_omp_master_taskloop,
        gfc_match_omp_master_taskloop_simd): New.
        (gfc_match_omp_taskloop_simd): Permit 'reduction' clause.
        (resolve_omp_clauses): Handle new combined directives; remove
        inscan-reduction check to reduce multiple errors; add
        task-reduction error for 'taskloop simd'.
        (gfc_resolve_omp_parallel_blocks,
        resolve_omp_do, omp_code_to_statement,
        gfc_resolve_omp_directive): Handle new combined constructs.
        * parse.c (decode_omp_directive, next_statement,
        gfc_ascii_statement, parse_omp_do, parse_omp_structured_block,
        parse_executable): Likewise.
        * resolve.c (gfc_resolve_blocks, gfc_resolve_code): Likewise.
        * st.c (gfc_free_statement): Likewise.
        * trans.c (trans_code): Likewise.
        * trans-openmp.c (gfc_split_omp_clauses,
        gfc_trans_omp_directive): Likewise.
        (gfc_trans_omp_parallel_master): Move after gfc_trans_omp_master_taskloop;
        handle parallel master taskloop (simd) as well.
        (gfc_trans_omp_taskloop): Take gfc_exec_op as arg.
        (gfc_trans_omp_master_taskloop): New.

2021-05-30  Gerald Pfeifer  <gerald@pfeifer.com>

        * gfortran.texi (BOZ literal constants): Fix typo.

2021-05-28  Tobias Burnus  <tobias@codesourcery.com>

        * dump-parse-tree.c (show_iterator): New.
        (show_omp_namelist): Handle iterators.
        (show_omp_clauses): Handle affinity.
        * gfortran.h (gfc_free_omp_namelist): New union with 'udr' and new 'ns'.
        * match.c (gfc_free_omp_namelist): Add are to choose union element.
        * openmp.c (gfc_free_omp_clauses, gfc_match_omp_detach,
        gfc_match_omp_clause_reduction, gfc_match_omp_flush): Update
        call to gfc_free_omp_namelist.
        (gfc_match_omp_variable_list): Likewise; permit preceeding whitespace.
        (enum omp_mask1): Add OMP_CLAUSE_AFFINITY.
        (gfc_match_iterator): New.
        (gfc_match_omp_clauses): Use it; update call to gfc_free_omp_namelist.
        (OMP_TASK_CLAUSES): Add OMP_CLAUSE_AFFINITY.
        (gfc_match_omp_taskwait): Match depend clause.
        (resolve_omp_clauses): Handle affinity; update for udr/union change.
        (gfc_resolve_omp_directive): Resolve clauses of taskwait.
        * st.c (gfc_free_statement): Update gfc_free_omp_namelist call.
        * trans-openmp.c (gfc_trans_omp_array_reduction_or_udr): Likewise
        (handle_iterator): New.
        (gfc_trans_omp_clauses): Handle iterators for depend/affinity clause.
        (gfc_trans_omp_taskwait): Handle depend clause.
        (gfc_trans_omp_directive): Update call.

2021-05-27  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/100602
        * trans-intrinsic.c (gfc_conv_intrinsic_size): Use CLASS data
        attributes for CLASS arrays for generation of runtime error.

2021-05-27  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/100656
        * trans-array.c (gfc_conv_ss_startstride): Do not call check for
        presence of a dummy argument when a symbol actually refers to a
        non-dummy.

2021-05-25  Tobias Burnus  <tobias@codesourcery.com>
            Johannes Nendwich  <a08727063@unet.univie.ac.at>

        * intrinsic.texi (GERROR, GETARGS, GETLOG, NORM2, PARITY, RANDOM_INIT,
        RANDOM_NUMBER): Fix typos and copy'n'paste errors.

2021-05-24  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/86470
        * trans-expr.c (gfc_copy_class_to_class): Add unshare_expr.
        * trans-openmp.c (gfc_is_polymorphic_nonptr,
        gfc_is_unlimited_polymorphic_nonptr): New.
        (gfc_omp_clause_copy_ctor, gfc_omp_clause_dtor): Handle
        polymorphic scalars.

2021-05-23  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/100551
        * trans-expr.c (gfc_conv_procedure_call): Adjust check for
        implicit conversion of actual argument to an unlimited polymorphic
        procedure argument.

2021-05-23  Tobias Burnus  <tobias@codesourcery.com>

        * intrinsic.texi (ATOMIC_ADD, ATOMIC_FETCH_ADD): Use the
        proper variable name in the description.

2021-05-22  Andre Vehreschild  <vehre@gcc.gnu.org>
            Steve Kargl  <kargl@gcc.gnu.org>

        PR fortran/98301
        * trans-decl.c (gfc_build_builtin_function_decls): Move decl.
        * trans-intrinsic.c (conv_intrinsic_random_init): Use bool for
        lib-call of caf_random_init instead of logical (4-byte).
        * trans.h: Add tree var for random_init.

2021-05-20  Marcel Vollweiler  <marcel@codesourcery.com>

        * openmp.c (gfc_match_omp_clauses): Support map-type-modifier 'close'.

2021-05-18  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/100642
        * openmp.c (omp_code_to_statement): Add missing EXEC_OMP_DEPOBJ.

2021-05-17  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/98411
        * trans-decl.c (gfc_finish_var_decl): Add check for explicit SAVE
        attribute.

2021-05-17  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/100633
        * resolve.c (gfc_resolve_code): Reject nonintrinsic assignments in
        OMP WORKSHARE.

2021-05-14  Tobias Burnus  <tobias@codesourcery.com>

        * dump-parse-tree.c (show_omp_node, show_code_node): Handle
        EXEC_OMP_PARALLEL_MASTER.
        * frontend-passes.c (gfc_code_walker): Likewise.
        * gfortran.h (enum gfc_statement): Add ST_OMP_PARALLEL_MASTER and
        ST_OMP_END_PARALLEL_MASTER.
        (enum gfc_exec_op): Add EXEC_OMP_PARALLEL_MASTER..
        * match.h (gfc_match_omp_parallel_master): Handle it.
        * openmp.c (gfc_match_omp_parallel_master, resolve_omp_clauses,
        omp_code_to_statement, gfc_resolve_omp_directive): Likewise.
        * parse.c (decode_omp_directive, case_exec_markers,
        gfc_ascii_statement, parse_omp_structured_block,
        parse_executable): Likewise.
        * resolve.c (gfc_resolve_blocks, gfc_resolve_code): Likewise.
        * st.c (gfc_free_statement): Likewise.
        * trans-openmp.c (gfc_trans_omp_parallel_master,
        gfc_trans_omp_workshare, gfc_trans_omp_directive): Likewise.
        * trans.c (trans_code): Likewise.

2021-05-14  Tobias Burnus  <tobias@codesourcery.com>

        * resolve.c (resolve_symbol): Handle implicit SAVE of main-program
        for vars in 'omp threadprivate' and 'omp declare target'.

2021-05-10  Martin Liska  <mliska@suse.cz>

        * decl.c (variable_decl): Use startswith
        function instead of strncmp.
        (gfc_match_end): Likewise.
        * gfortran.h (gfc_str_startswith): Likewise.
        * module.c (load_omp_udrs): Likewise.
        (read_module): Likewise.
        * options.c (gfc_handle_runtime_check_option): Likewise.
        * primary.c (match_arg_list_function): Likewise.
        * trans-decl.c (gfc_get_symbol_decl): Likewise.
        * trans-expr.c (gfc_conv_procedure_call): Likewise.
        * trans-intrinsic.c (gfc_conv_ieee_arithmetic_function): Likewise.

2021-05-06  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/46991
        PR fortran/99819
        * class.c (gfc_build_class_symbol): Remove the error that
        disables assumed size class arrays. Class array types that are
        not deferred shape or assumed rank are given a unique name and
        placed in the procedure namespace.
        * trans-array.c (gfc_trans_g77_array): Obtain the data pointer
        for class arrays.
        (gfc_trans_dummy_array_bias): Suppress the runtime error for
        extent violations in explicit shape class arrays because it
        always fails.
        * trans-expr.c (gfc_conv_procedure_call): Handle assumed size
        class actual arguments passed to non-descriptor formal args by
        using the data pointer, stored as the symbol's backend decl.

2021-05-05  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/100274
        * interface.c (gfc_compare_actual_formal): Continue checks after
        emitting warning for argument length mismatch.
        * trans-expr.c (gfc_conv_procedure_call): Check for NULL pointer
        dereference.

2021-05-04  Tobias Burnus  <tobias@codesourcery.com>

        PR testsuite/100397
        * trans-openmp.c (gfc_trans_omp_depobj): Fix pasto in enum values.

2021-04-28  Tobias Burnus  <tobias@codesourcery.com>

        * openmp.c (gfc_match_omp_variable_list): Gobble whitespace before
        checking whether a '%' or parenthesis-open follows as next character.

2021-04-28  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

        PR fortran/82376
        * trans-expr.c (gfc_conv_procedure_call): Evaluate function result
        and then pass a pointer.

2021-04-26  Thomas Schwinge  <thomas@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>
            Tom de Vries  <vries@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Kwok Cheung Yeung  <kcy@codesourcery.com>

        * lang.opt (Wopenacc-parallelism): New.

2021-04-24  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/100154
        * check.c (variable_check): Allow function reference having a data
        pointer result.
        (arg_strlen_is_zero): New function.
        (gfc_check_fgetputc_sub): Add static check of character and status
        arguments.
        (gfc_check_fgetput_sub): Likewise.
        * intrinsic.c (add_subroutines): Fix argument name for the
        character argument to intrinsic subroutines fget[c], fput[c].

2021-04-24  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/100218
        * expr.c (gfc_check_vardef_context): Extend check to allow pointer
        from a function reference.

2021-04-22  Martin Liska  <mliska@suse.cz>

        PR testsuite/100159
        PR testsuite/100192
        * frontend-passes.c (optimize_expr): Fix typos and missing comments.

2021-04-22  Michael Meissner  <meissner@linux.ibm.com>

        PR fortran/96983
        * trans-intrinsic.c (build_round_expr): If int type is larger than
        long long, do the round and convert to the integer type.  Do not
        try to find a floating point type the exact size of the integer
        type.

2021-04-21  Tobias Burnus  <tobias@codesourcery.com>

        * dump-parse-tree.c (show_omp_namelist): Handle depobj + mutexinoutset
        in the depend clause.
        (show_omp_clauses, show_omp_node, show_code_node): Handle depobj.
        * gfortran.h (enum gfc_statement): Add ST_OMP_DEPOBJ.
        (enum gfc_omp_depend_op): Add OMP_DEPEND_UNSET,
        OMP_DEPEND_MUTEXINOUTSET and OMP_DEPEND_DEPOBJ.
        (gfc_omp_clauses): Add destroy, depobj_update and depobj.
        (enum gfc_exec_op): Add EXEC_OMP_DEPOBJ
        * match.h (gfc_match_omp_depobj): Match 'omp depobj'.
        * openmp.c (gfc_match_omp_clauses): Add depobj + mutexinoutset
        to depend clause.
        (gfc_match_omp_depobj, resolve_omp_clauses, gfc_resolve_omp_directive):
        Handle 'omp depobj'.
        * parse.c (decode_omp_directive, next_statement, gfc_ascii_statement):
        Likewise.
        * resolve.c (gfc_resolve_code): Likewise.
        * st.c (gfc_free_statement): Likewise.
        * trans-openmp.c (gfc_trans_omp_clauses): Handle depobj + mutexinoutset
        in the depend clause.
        (gfc_trans_omp_depobj, gfc_trans_omp_directive): Handle EXEC_OMP_DEPOBJ.
        * trans.c (trans_code): Likewise.

2021-04-20  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/100110
        * trans-decl.c (gfc_get_symbol_decl): Replace test for host
        association with a check that the current and symbol namespaces
        are the same.

2021-04-19  Thomas Schwinge  <thomas@codesourcery.com>

        * lang.opt (fopenacc-kernels=): Remove.

2021-04-16  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

        PR fortran/100094
        * trans-array.c (gfc_trans_deferred_array): Add code to initialize
        pointers and allocatables with correct TKR parameters.

2021-04-16  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

        PR fortran/100018
        * resolve.c: Add association check before de-referencing pointer.

2021-04-16  Harald Anlauf  <anlauf@gmx.de>
            Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/63797
        * module.c (write_symtree): Do not write interface of intrinsic
        procedure to module file for F2003 and newer.

2021-04-15  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/99307
        * symbol.c: Remove trailing white space.
        * trans-array.c (gfc_trans_create_temp_array): Create a class
        temporary for class expressions and assign the new descriptor
        to the data field.
        (build_class_array_ref): If the class expr can be extracted,
        then use that for 'decl'. Class function results are reliably
        handled this way. Call gfc_find_and_cut_at_last_class_ref to
        eliminate largely redundant code. Remove dead code and recast
        the rest of the code to extract 'decl' for remaining cases.
        Call gfc_build_spanned_array_ref.
        (gfc_alloc_allocatable_for_assignment): Use class descriptor
        element length for 'elemsize1'. Eliminate repeat set of dtype
        for class expressions.
        * trans-expr.c (gfc_find_and_cut_at_last_class_ref): Include
        additional code from build_class_array_ref, and use optional
        gfc_typespec pointer argument.
        (gfc_trans_scalar_assign): Make use of pre and post blocks for
        all class expressions.
        * trans.c (get_array_span): For unlimited polymorphic exprs
        multiply the span by the value of the _len field.
        (gfc_build_spanned_array_ref): New function.
        (gfc_build_array_ref): Call gfc_build_spanned_array_ref and
        eliminate repeated code.
        * trans.h: Add arg to gfc_find_and_cut_at_last_class_ref and
        add prototype for gfc_build_spanned_array_ref.

2021-04-14  Martin Liska  <mliska@suse.cz>

        * intrinsic.texi: The table has first column empty and it makes
        trouble when processing makeinfo --xml output.

2021-04-09  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/99817
        * trans-types.c (gfc_get_function_type): Also generate hidden
        coarray argument for character arguments.

2021-04-03  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/99818
        * interface.c (compare_parameter): The codimension attribute is
        applied to the _data field of class formal arguments.

2021-04-01  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/99840
        * simplify.c (gfc_simplify_transpose): Properly initialize
        resulting shape.

2021-03-28  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/99602
        * trans-expr.c (gfc_conv_procedure_call): Use the _data attrs
        for class expressions and detect proc pointer evaluations by
        the non-null actual argument list.

2021-03-27  Steve Kargl  <kargl@gcc.gnu.org>

        * misc.c (gfc_typename): Fix off-by-one in buffer sizes.

2021-03-26  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/99651
        * intrinsic.c (gfc_intrinsic_func_interface): Set
        attr.proc = PROC_INTRINSIC if FL_PROCEDURE.

2021-03-24  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/99369
        * resolve.c (resolve_operator): Make 'msg' buffer larger
        and use snprintf.

2021-03-23  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/93660
        * trans-decl.c (build_function_decl): Add comment;
        increment hidden_typelist for caf_token/caf_offset.
        * trans-types.c (gfc_get_function_type): Add comment;
        add missing caf_token/caf_offset args.

2021-03-22  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/99688
        * match.c (select_type_set_tmp, gfc_match_select_type,
        gfc_match_select_rank): Fix 'name' buffersize to avoid out of bounds.
        * resolve.c (resolve_select_type): Likewise.

2021-03-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

        * frontend-passes.c (inline_limit_check): Add rank_a
        argument. If a is rank 1, set the second dimension to 1.
        (inline_matmul_assign): Pass rank_a argument to inline_limit_check.
        (call_external_blas): Likewise.

2021-03-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/99345
        * frontend-passes.c (doloop_contained_procedure_code):
        Properly handle EXEC_IOLENGTH.

2021-03-15  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/99545
        * trans-stmt.c (gfc_trans_allocate): Mark the initialization
        assignment by setting init_flag.

2021-03-14  Harald Anlauf  <anlauf@gmx.de>
            Paul Thomas  <pault@gcc.gnu.org>

        * trans-expr.c (gfc_conv_procedure_call): Fix runtime checks for
        CLASS arguments.
        * trans-intrinsic.c (gfc_conv_intrinsic_size): Likewise.

2021-03-13  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/99125
        * trans-array.c (gfc_conv_expr_descriptor): For deferred length
        length components use the ss_info string length instead of
        gfc_get_expr_charlen. Make sure that the deferred string length
        is a variable before assigning to it. Otherwise use the expr.
        * trans-expr.c (gfc_conv_string_length): Make sure that the
        deferred string length is a variable before assigning to it.

2021-03-12  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/99514
        * resolve.c (resolve_symbol): Accept vars which are in DATA
        and hence (either) implicit SAVE (or in common).

2021-03-10  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/99205
        * data.c (gfc_assign_data_value): Reject non-constant character
        length for lvalue.
        * trans-array.c (gfc_conv_array_initializer): Restrict loop to
        elements which are defined to avoid NULL pointer dereference.

2021-03-10  Tobias Burnus  <tobias@codesourcery.com>

        * intrinsic.texi (MIN): Correct 'maximum' to 'minimum'.

2021-03-10  Eric Botcazou  <ebotcazou@adacore.com>

        PR fortran/96983
        * trans-intrinsic.c (build_round_expr): Do not implicitly assume
        that __float128 is the 128-bit floating-point type.

2021-03-08  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/49278
        * data.c (gfc_assign_data_value): Reject variable with PARAMETER
        attribute in DATA statement.

2021-03-05  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/99355
        PR fortran/57871
        * invoke.texi (-freal{4,8}-real-*): Extend description.
        * primary.c (match_real_constant): Also promote real literals
        with '_kind' number.

2021-03-04  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/99355
        * decl.c (gfc_match_old_kind_spec, gfc_match_kind_spec): Avoid
        redoing kind conversions.
        * primary.c (match_real_constant): Likewise.

2021-02-28  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/99303
        * openmp.c (gfc_omp_requires_add_clause): Fix up diagnostic message
        wordings.
        (resolve_omp_clauses): Likewise.

2021-02-28  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/99300
        * frontend-passes.c (doloop_code): Replace double space in diagnostics
        with a single space.

2021-02-24  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/98342
        * trans-expr.c (gfc_conv_derived_to_class): Add optional arg.
        'derived_array' to hold the fixed, parmse expr in the case of
        assumed rank formal arguments. Deal with optional arguments.
        (gfc_conv_procedure_call): Null 'derived' array for each actual
        argument. Add its address to the call to gfc_conv_derived_to_
        class. Access the 'data' field of scalar descriptors before
        deallocating allocatable components. Also strip NOPs before the
        calls to gfc_deallocate_alloc_comp. Use 'derived' array as the
        input to gfc_deallocate_alloc_comp if it is available.
        * trans.h : Include the optional argument 'derived_array' to
        the prototype of gfc_conv_derived_to_class. The default value
        is NULL_TREE.

2021-02-23  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/99124
        * resolve.c (resolve_fl_procedure): Include class results in
        the test for F2018, C15100.
        * trans-array.c (get_class_info_from_ss): Do not use the saved
        descriptor to obtain the class expression for variables. Use
        gfc_get_class_from_expr instead.

2021-02-23  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/99206
        * simplify.c (gfc_simplify_reshape): Set string length for
        character arguments.

2021-02-22  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/99171
        * trans-openmp.c (gfc_omp_is_optional_argument): Regard optional
        dummy procs as nonoptional as no special treatment is needed.

2021-02-21  Harald Anlauf  <anlauf@gmx.de>

        * trans-expr.c (gfc_conv_procedure_call): Do not add clobber to
        allocatable intent(out) argument.

2021-02-19  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/98686
        * match.c (gfc_match_namelist): If BT_UNKNOWN, check for
        IMPLICIT NONE and and issue an error, otherwise set the type
        to its IMPLICIT type so that any subsequent use of objects will
        will confirm their types.

2021-02-19  Harald Anlauf  <anlauf@gmx.de>

        * symbol.c (gfc_add_flavor): Reverse order of conditions.

2021-02-19  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/99010
        * dependency.c (gfc_dep_resolver): Fix coarray handling.

2021-02-19  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/99146
        * interface.c:

2021-02-19  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/99027
        * simplify.c (simplify_bound_dim): Honor DIMEN_ELEMENT
        when using dim=.

2021-02-17  Julian Brown  <julian@codesourcery.com>

        * openmp.c (resolve_omp_clauses): Disallow selecting components
        of arrays of derived type.

2021-02-17  Julian Brown  <julian@codesourcery.com>

        * trans-openmp.c (gfc_trans_omp_clauses): Handle element selection
        for arrays of derived types.

2021-02-16  Tobias Burnus  <tobias@codesourcery.com>

        * expr.c (gfc_is_simplify_contiguous): Handle REF_INQUIRY, i.e.
        %im and %re which are EXPR_VARIABLE.
        * openmp.c (resolve_omp_clauses): Diagnose %re/%im explicitly.

2021-02-16  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/99111
        * io.c (resolve_tag_format): Reject BT_DERIVED/CLASS/VOID
        as (array-valued) FORMAT tag.

2021-02-12  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/99043
        * trans-expr.c (gfc_conv_procedure_call): Don't reset
        rank of assumed-rank array.

2021-02-11  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/98897
        * match.c (gfc_match_call): Include associate names as possible
        entities with typebound subroutines. The target needs to be
        resolved for the type.

2021-02-11  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/99060
        * primary.c (gfc_match_varspec): Test for non-null 'previous'
        before using its name in the error message.

2021-02-11  Tobias Burnus  <tobias@codesourcery.com>

        * intrinsic.texi (FINDLOC): Add 'MASK' to argument table.
        (MAXLOC, MAXVAL, MINLOC, MINVAL): For 'MASK', remove 'an
        array' as scalars are also permitted.

2021-02-10  Julian Brown  <julian@codesourcery.com>

        PR fortran/98979
        * openmp.c (resolve_omp_clauses): Omit OpenACC update in
        contiguity check and stride-specified error.

2021-02-04  Julian Brown  <julian@codesourcery.com>

        * openmp.c (resolve_omp_clauses): Omit OpenACC update in
        contiguity check and stride-specified error.

2021-02-04  Julian Brown  <julian@codesourcery.com>

        * trans-openmp.c (gfc_trans_omp_clauses): Use class_pointer attribute
        for BT_CLASS.

2021-02-04  Julian Brown  <julian@codesourcery.com>

        * trans-openmp.c (gfc_trans_omp_clauses): Fix dereferencing for
        BT_DERIVED members.

2021-02-04  Tobias Burnus  <tobias@codesourcery.com>

        * openmp.c (resolve_omp_clauses): Explicitly diagnose
        substrings as not permitted.

2021-02-03  Jeff Law  <law@redhat.com>

        * intrinsic.texi (ANINT): Fix typo.

2021-02-03  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/98913
        * dependency.c (gfc_dep_resolver): Treat local access
        to coarrays like any array access in dependency analysis.

2021-01-28  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/86470
        * trans.c (gfc_call_malloc): Allocate area of size 1 if passed
        size is NULL (as documented).

2021-01-27  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/93924
        PR fortran/93925
        * trans-expr.c (gfc_conv_procedure_call): Suppress the call to
        gfc_conv_intrinsic_to_class for unlimited polymorphic procedure
        pointers.
        (gfc_trans_assignment_1): Similarly suppress class assignment
        for class valued procedure pointers.

2021-01-27  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/98472
        * trans-array.c (gfc_conv_expr_descriptor): Include elemental
        procedure pointers in the assert under the comment 'elemental
        function' and eliminate the second, spurious assert.

2021-01-25  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/70070
        * data.c (create_character_initializer): Check substring indices
        against bounds.
        (gfc_assign_data_value): Catch error returned from
        create_character_initializer.

2021-01-25  Tobias Burnus  <tobias@codesourcery.com>

        * intrinsic.texi (CO_BROADCAST, CO_MIN, CO_REDUCE, CO_SUM): Fix typos.

2021-01-25  Steve Kargl  <kargl@gcc.gnu.org>

        PR fortran/98517
        * resolve.c (resolve_charlen): Check that length expression is
        present before testing for scalar/integer..

2021-01-22  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/98565
        * trans-intrinsic.c (gfc_conv_associated): Do not add a _data
        component for scalar class function targets. Instead, fix the
        function result and access the _data from that.

2021-01-21  Jorge D'Elia  <jdelia@cimec.unl.edu.ar>

        * intrinsic.texi (CO_MAX): Fix typo.

2021-01-21  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/96320
        * decl.c (gfc_match_modproc): It is not an error to find a
        module procedure declaration within a contains block.
        * expr.c (gfc_check_vardef_context): Pure procedure result is
        assignable. Change 'own_scope' accordingly.
        * resolve.c (resolve_typebound_procedure): A procedure that
        has the module procedure attribute is almost certainly a
        module procedure, whatever its interface.

2021-01-19  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/98476
        * openmp.c (resolve_omp_clauses): Change use_device_ptr
        to use_device_addr for unless type(c_ptr); check all
        list item for is_device_ptr.

2021-01-16  Kwok Cheung Yeung  <kcy@codesourcery.com>

        * dump-parse-tree.c (show_omp_clauses): Handle detach clause.
        * frontend-passes.c (gfc_code_walker): Walk detach expression.
        * gfortran.h (struct gfc_omp_clauses): Add detach field.
        (gfc_c_intptr_kind): New.
        * openmp.c (gfc_free_omp_clauses): Free detach clause.
        (gfc_match_omp_detach): New.
        (enum omp_mask1): Add OMP_CLAUSE_DETACH.
        (enum omp_mask2): Remove OMP_CLAUSE_DETACH.
        (gfc_match_omp_clauses): Handle OMP_CLAUSE_DETACH for OpenMP.
        (OMP_TASK_CLAUSES): Add OMP_CLAUSE_DETACH.
        (resolve_omp_clauses): Prevent use of detach with mergeable and
        overriding the data sharing mode of the event handle.
        * trans-openmp.c (gfc_trans_omp_clauses): Handle detach clause.
        * trans-types.c (gfc_c_intptr_kind): New.
        (gfc_init_kinds): Initialize gfc_c_intptr_kind.
        * types.def
        (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT): Rename
        to...
        (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR):
        ...this.  Add extra argument.

2021-01-14  Harald Anlauf  <anlauf@gmx.de>

        * gfortran.h (gfc_resolve_substring): Add prototype.
        * primary.c (match_string_constant): Simplify substrings with
        constant starting and ending points.
        * resolve.c: Rename resolve_substring to gfc_resolve_substring.
        (gfc_resolve_ref): Use renamed function gfc_resolve_substring.

2021-01-14  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/98661
        * resolve.c (resolve_component): Derived type components with
        ALLOCATABLE or POINTER attribute shall have a deferred shape.

2021-01-14  Harald Anlauf  <anlauf@gmx.de>

        Revert:
        2021-01-14  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/98661
        * resolve.c (resolve_component): Derived type components with
        ALLOCATABLE or POINTER attribute shall have a deferred shape.

2021-01-14  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/98661
        * resolve.c (resolve_component): Derived type components with
        ALLOCATABLE or POINTER attribute shall have a deferred shape.

2021-01-08  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/93794
        * trans-expr.c (gfc_conv_component_ref): Remove the condition
        that deferred character length components only be allocatable.

2021-01-08  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/98458
        * simplify.c (is_constant_array_expr): If an array constructor
        expression has elements other than constants or structures, try
        fixing the expression with gfc_reduce_init_expr. Also, if shape
        is NULL, obtain the array size and set it.

2021-01-07  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/93701
        * resolve.c (find_array_spec): Put static prototype for
        resolve_assoc_var before this function and call for associate
        variables.

2021-01-06  Harald Anlauf  <anlauf@gmx.de>

        * resolve.c (resolve_component): Add check for valid CLASS
        reference before trying to access CLASS data.

2021-01-04  Martin Liska  <mliska@suse.cz>

        * ChangeLog-2018: Remove duplicate ChangeLog entries.

2021-01-01  Harald Anlauf  <anlauf@gmx.de>

        * class.c (gfc_find_vtab): Add check on attribute is_class.

2021-01-01  Jakub Jelinek  <jakub@redhat.com>

        * 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.

2021-01-01  Jakub Jelinek  <jakub@redhat.com>

        * ChangeLog-2020: Rotate ChangeLog.  New file.

\f
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