Assorted ChangeLog cleanups.

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

2019-08-06  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/91359
        * trans-decl.c (gfc_generate_return): Ensure something is returned
        from a function.

2019-08-06  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/42546
        * check.c(gfc_check_allocated): Add comment pointing to ...
        * intrinsic.c(sort_actual): ... the checking done here.

2019-08-05  Steven g. Kargl  <kargl@gcc.gnu.org>

        PR fortran/91372
        * decl.c (gfc_match_data): Allow an implied do-loop to nestle against
        DATA.

2019-08-04  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/88227
        * check.c (oct2bin): New function.  Convert octal string to binary.
        (hex2bin): New function.  Convert hexidecimal string to binary.
        (bin2real): New function.  Convert binary string to REAL.  Use
        oct2bin and hex2bin.
        (gfc_boz2real): Use fallback conversion bin2real.

2019-08-02  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/90985
        * decl.c (gfc_match_data): In free-form code, DATA be followed by
        whitespace.

2019-08-02  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/90986
        * match.c (gfc_match_equivalence): Check that EQUIVALENCE is followed
        by '('.

2019-07-30  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/91296
        * interface.c (compare_actual_expr): When checking for aliasing, add
        a case to handle REF_INQUIRY (e.g., foo(x%re, x%im) do not alias).

2019-07-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/90813
        * dump-parse-tree.c (show_global_symbol): New function.
        (gfc_dump_global_symbols): New function.
        * gfortran.h (gfc_traverse_gsymbol): Add prototype.
        (gfc_dump_global_symbols): Likewise.
        * invoke.texi: Document -fdump-fortran-global.
        * lang.opt: Add -fdump-fortran-global.
        * parse.c (gfc_parse_file): Handle flag_dump_fortran_global.
        * symbol.c (gfc_traverse_gsymbol): New function.
        * trans-decl.c (sym_identifier): New function.
        (mangled_identifier): New function, doing most of the work
        of gfc_sym_mangled_identifier.
        (gfc_sym_mangled_identifier): Use mangled_identifier.  Add mangled
        identifier to global symbol table.
        (get_proc_pointer_decl): Use backend decl from global identifier
        if present.

2019-07-25  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/65819
        * dependency.h (gfc_dep_resovler): Add optional argument identical.
        * dependency.c (gfc_check_dependency): Do not alway return 1 if
        the symbol is the same. Pass on identical to gfc_dep_resolver.
        (gfc_check_element_vs_element): Whitespace fix.
        (gfc_dep_resolver): Adjust comment for function.  If identical is
        true, return 1 if any overlap has been found.

2019-07-23  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/54072
        * check.c (gfc_invalid_boz): Fix comment.
        (illegal_boz_arg): New function.
        (gfc_check_transfer): Use to arguments.
        (gfc_check_storage_size): Ditto.
        (gfc_check_complex): Remove leftover comment from BOZ patch.
        * primary.c (match_boz_constant): Remove leftover comment.

2019-07-23  Steven G. Kargl  <kargl@gcc.gnu.org>

        * arith.c (gfc_convert_integer, gfc_convert_real, gfc_convert_complex):
        Move to ...
        * primary.c (convert_integer, convert_real, convert_complex): ... here.
        Rename and make static functions.
        (match_integer_constant): Use convert_integer
        (match_real_constant): Use convert_real.
        (match_complex_constant: Use convert_complex.
        * arith.h (gfc_convert_integer, gfc_convert_real, gfc_convert_complex):
        Remove prototypes.
        * array.c (match_array_cons_element): A BOZ cannot be a data
        statement value.  Jump to a common exit point.
        * check.c (gfc_invalid_boz): New function.  Emit error or warning
        for a BOZ in an invalid context.
        (boz_args_check): Move to top of file to prevent need of forward
        declaration.
        (is_boz_constant): New function.  Check that BOZ expr is constant.
        (gfc_boz2real): New function. In-place conversion of BOZ literal
        constant to REAL in accordance to F2018.
        (gfc_boz2int): New function. In-place conversion of BOZ literal
        constant to INTEGER in accordance to F2018.
        (gfc_check_achar, gfc_check_char, gfc_check_float): Use gfc_invalid_boz.  Convert BOZ
        as needed.
        (gfc_check_bge_bgt_ble_blt): Enforce F2018 requirements on BGE,
        BGT, BLE, and BLT intrinsic functions.
        (gfc_check_cmplx): Re-organize to check kind, if present, first.
        Convert BOZ real and/or imaginary parts as needed in accordance to
        F2018.
        (gfc_check_complex): Use gfc_invalid_boz.  Convert BOZ as needed.
        (gfc_check_dcmplx, gfc_check_dble ): Convert BOZ as needed.
        (gfc_check_dshift): Make dshift[lr] conform to F2018 standard.
        gfc_check_float (gfc_expr *a)
        (gfc_check_iand_ieor_ior): Make IAND, IEOR, and IOR conform to
        F2018 standard.
        (gfc_check_int): Conform to F2018 standard.
        (gfc_check_intconv): Deprecate SHORT and LONG aliases for INT2 and
        INT.  Simply return for a BOZ argument. See gfc_simplify_intconv.
        (gfc_check_merge_bits): Make MERGE_BITS conform to Fortran 2018
        standard.
        (gfc_check_real): Remove incorrect comment. Check kind, if present,
        first.  Simply return for a BOZ argument. See gfc_simplify_real.
        (gfc_check_and): Re-do error handling for BOZ arguments.  Remove
        special casing ts.type != BT_INTEGER or BT_LOGICAL.
        * decl.c (match_old_style_init): Check for BOZ in old-style
        initialization.  Issue error or warning depending on
        -fallow-invalid-boz option.  Issue error if variable is not an
        INTEGER or REAL and the value is BOZ.
        * expr.c (gfc_copy_expr): Copy a BT_BOZ gfc_expr.
        (gfc_check_assign): Re-do error handling for a BOZ in an assignment
        statement.  Do in-place conversion of RHS based on LHS type of
        INTEGER or REAL.
        * gfortran.h (gfc_expr): Add a boz component.  Remove is_boz component.
        (gfc_boz2int, gfc_boz2real, gfc_invalid_boz): New prototypes.
        * interface.c (gfc_extend_assign): Guard against replacing an
        intrinsic involving a BOZ literal constant on RHS.
        * invoke.texi: Doument -fallow-invalid-boz.
        * lang.opt: New option. -fallow-invalid-boz.
        * libgfortran.h (bt): Elevate BOZ to a basic type.
        * misc.c (gfc_basic_typename, gfc_typename): Translate BT_BOZ to BOZ.
        * primary.c (convert_integer, convert_real, convert_complex): to here.
        Rename and make static functions.
        * primary.c(match_boz_constant): Rewrite parsing of a BOZ. Re-do
        error handling.  Deprecate 'X' for hexidecimal and postfix notation.
        Use -fallow-invalid-boz and gfc_invalid_boz to accept deprecated code.
        * resolve.c (resolve_ordinary_assign): Rework a RHS that is a
        BOZ literal constant.  Use gfc_invalid_boz to allow previous
        nonstandard behavior.  Remove range checking of BOZ conversion.
        * simplify.c (convert_boz): Remove function.
        (simplify_cmplx): Remove conversion of BOZ constants, because
        conversion is done in gfc_check_cmplx.
        (gfc_simplify_float): Remove conversion of BOZ constant, because
        conversion is done in gfc_check_float.
        (simplify_intconv): Use gfc_boz2int to convert BOZ to INTEGER.
        Remove range checking for BOZ conversion.
        (gfc_simplify_real): Use k, if present, to determine kind.  Convert
        BOZ to REAL.  Remove range checking for BOZ conversion.
        target-memory.c (gfc_convert_boz): Rewrite to deal with convert of
        a BOZ to a REAL value.

2019-07-21  Thomas König  <tkoenig@gcc.gnu.org>

        PR libfortran/91030
        * gfortran.texi (GFORTRAN_FORMATTED_BUFFER_SIZE): Document
        (GFORTRAN_UNFORMATTED_BUFFER_SIZE): Likewise.

2019-07-16  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/90903
        * libgfortran.h: Add mask for -fcheck=bits option.
        * options.c (gfc_handle_runtime_check_option): Add option "bits"
        to run-time checks selectable via -fcheck.
        * trans-intrinsic.c (gfc_conv_intrinsic_btest)
        (gfc_conv_intrinsic_singlebitop, gfc_conv_intrinsic_ibits)
        (gfc_conv_intrinsic_shift, gfc_conv_intrinsic_ishft)
        (gfc_conv_intrinsic_ishftc): Implement run-time checks for the
        POS, LEN, SHIFT, and SIZE arguments.
        * gfortran.texi: Document run-time checks for bit manipulation
        intrinsics.
        * invoke.texi: Document new -fcheck=bits option.

2019-07-14  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/87233
        * expr.c (check_restricted): Relax constraint C1279 which was
        removed from F2008 and above.

2019-07-07  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/91077
        * trans-array.c (gfc_conv_scalarized_array_ref) Delete code
        that gave symbol backend decl for subref arrays and deferred
        length variables.

2019-07-05  Andrew Stubbs  <ams@codesourcery.com>

        * openmp.c (resolve_omp_clauses): Add custom error messages for
        parameters in map clauses.

2019-07-03  Martin Liska  <mliska@suse.cz>

        * check.c (gfc_check_c_funloc): Remove
        dead assignemts.
        * decl.c (variable_decl): Likewise.
        * resolve.c (resolve_typebound_function): Likewise.
        * simplify.c (gfc_simplify_matmul): Likewise.
        (gfc_simplify_scan): Likewise.
        * trans-array.c (gfc_could_be_alias): Likewise.
        * trans-common.c (add_equivalences): Likewise.
        * trans-expr.c (trans_class_vptr_len_assignment): Likewise.
        (gfc_trans_array_constructor_copy): Likewise.
        (gfc_trans_assignment_1): Likewise.
        * trans-intrinsic.c (conv_intrinsic_atomic_op): Likewise.
        * trans-openmp.c (gfc_omp_finish_clause): Likewise.
        * trans-types.c (gfc_get_array_descriptor_base): Likewise.
        * trans.c (gfc_build_final_call): Likewise.

2019-06-27  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/90987
        * gfortran.dg/common_1.f: new test.
        * gfortran.dg/common_26.f90: Ditto.

2019-06-26  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR Fortran/90988
        ChangeLog forgotten with revision 272667
        * decl.c (access_attr_decl): Use temporary variable to reduce
        unreadability of code.  Normalize jumping to return.
        (gfc_match_protected): Fix parsing error.  Add comments to
        explain code.  Remove dead code.
        (gfc_match_private): Use temporary variable to reduce unreadability
        of code. Fix parsing error.  Move code to test for blank PRIVATE.
        Remove dead code.
        (gfc_match_public): Move code to test for blank PUBLIC.  Fix
        parsing error.  Remove dead code.

2019-06-24  Jan Hubicka  <jh@suse.cz>

        * trans-expr.c (gfc_conv_substring): Check that
        type is array or integer prior checking string flag.
        (gfc_conv_string_parameter): Likewise.
        * trans-openmp.c (gfc_omp_scalar_p): Likewise.
        * trans.c (gfc_build_array_ref): Likewise.

2019-06-22  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/89782
        * io.c (gfc_resolve_dt): Check that internal units are not
        character PARAMETER.

2019-06-21  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/67884
        * resolve.c (deferred_requirements) : Check only the result variable.
        (resolve_fl_procedure): Check deferred requirements on functions.

2019-06-21  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/51991
        * decl.c (gfc_match_save): If SAVE was not seen, return MATCH_NO
        instead issuing an error message and returning MATCH_ERROR.

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77632
        * /decl.c (variable_decl): Mark a variable that is a target in pointer
        initialization when in PROGRAM, MODULE, or SUBMODULE scope with an
        implicit save.

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/86587
        * symbol.c (verify_bind_c_derived_type): Remove erroneous error
        checking for BIND(C) and PRIVATE attributes.

2019-06-20  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/90937
        * trans-types.c (get_formal_from_actual_arglist): Get symbol from
        current namespace so it will be freed later.  If symbol is of type
        character, get an empty character length.

2019-06-19  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/69499
        * match.c (gfc_match_select_type): SELECT TYPE is an executable
        statement, and cannot appear in MODULE or SUBMODULE scope.

2019-06-19  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/69398
        * decl.c (attr_decl): Check for duplicate DIMENSION attribute for a
        CLASS entity.

2019-06-19  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/87907
        * resolve.c (resolve_contained_fntype): Do not dereference a NULL
        pointer.

2019-06-19  Jim MacArthur  <jim.macarthur@codethink.co.uk>
            Mark Eggleston  <mark.eggleston@codethink.com>

        PR fortran/89103
        * gfortran.texi: Add -fdec-blank-format-item
        * invoke.texi: Add option to list of options.
        * invoke.texi: Add to section on Commas in FORMAT specifications.
        * io.c (check_format): At FMT_RPAREN goto finished if
        -fdec-blank-format-item otherwise set error string.
        * lang.opt: Add new option.
        * options.c (set_dec_flags): Add SET_BITFLAG for
        flag_dec_format_defaults.

2019-06-18  Julian Brown  <julian@codesourcery.com>

        PR fortran/90921
        * trans-decl.c (finish_oacc_declare): Reset module_oacc_clauses
        before scanning each namespace.

2019-06-18  Thomas Schwinge  <thomas@codesourcery.com>

        PR fortran/85221
        * trans-decl.c (add_attributes_to_decl): Handle OpenACC 'declare'
        directive.

2019-06-16  Thomas Koenig  <tkoenig@gcc.gnu.org>

        * dump_parse_tree (debug): Add verison for formal arglist.
        Do not crash when a gfc_expr is NULL.

2019-06-15  Steven G. Kargl  <kargl@gcc.gnu.org>

        * decl.c (gfc_match_derived_decl): Dummy argument cannot be a derived
        type.

2019-06-14  Steven G. Kargl  <kargl@gcc.gnu.org>

        * arith.c (arith_power): Rework overflow of an integer to an integer
        exponent.

2019-06-14  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/90577
        PR fortran/90578
        * trans-intrinsic.c (gfc_conv_intrinsic_shift): Properly
        distinguish logical/arithmetic shifts.
        * intrinsic.texi: Update documentation for SHIFTR/SHIFTL/SHIFTA
        (Fortran 2008) and LSHIFT/RSHIFT (GNU extensions).

2019-06-14  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/89646
        * dependency.c (gfc_check_argument_var_dependency): Suppress spurious
        warnings by comparing variable names.

2019-06-13  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/68544
        * resolve.c (is_dt_name): New function to compare symbol name against
        list of derived types.
        (resolve_actual_arglist): Use it to find wrong code.

2019-06-13  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/89344
        * expr.c (gfc_check_vardef_context): Check for INTENT(IN) variable
        in SELECT TYPE construct.

2019-06-13  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/88810
        * dependency.c (gfc_dep_resolver): Re-arrange code to make the logic
        a bit more transparent.  Fix 2 nearby formatting issues.

2019-06-13  Jakub Jelinek  <jakub@redhat.com>

        * io.c (check_format): Use G_(...) instead of _(...) for error values,
        append " in format string at %L" to all strings but unexpected_element,
        use error as gfc_error formating string instead of
        "%s in format string at %L".  Formatting fixes.

2019-06-12  Steven G. Kargl  <kargl@gcc.gnu.org>

        * gfortran.h (gfc_free_dt_list): Remove prototype.

2019-06-12  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/90002
        * array.c (gfc_free_array_spec): When freeing an array-spec, avoid
        an ICE for assumed-shape coarrays.

2019-06-08  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/90786
        * trans-expr.c (pointer_assignment_is_proc_pointer) Remove as
        it is very simple and only called from one place.
        (gfc_trans_pointer_assignment): Rename non_proc_pointer_assign
        as non_proc_ptr_assign. Assign to it directly, rather than call
        to above, deleted function and use gfc_expr_attr instead of
        only checking the reference chain.

2019-06-08  Thomas Koenig  <tkoenig@gcc.gnu.org>
            Tomáš Trnka  <trnka@scm.com>

        PR fortran/90744
        * trans-types.c (get_formal_from_actual_arglist): Unset typespec
        flags which make no sense for procedures without explicit
        interface.

2019-06-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/90539
        * trans-expr.c (gfc_conv_subref_array_arg): If the size of the
        expression can be determined to be one, treat it as contiguous.
        Set likelyhood of presence of an actual argument according to
        PRED_FORTRAN_ABSENT_DUMMY and likelyhood of being contiguous
        according to PRED_FORTRAN_CONTIGUOUS.

2019-05-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

        * gfc-internals.texi (Translating to GENERIC): New chapter.

2019-05-30  Marek Polacek  <polacek@redhat.com>

        * lang.opt (ftail-call-workaround): Fix a typo.

2019-05-30  Jakub Jelinek  <jakub@redhat.com>

        * lang.opt (ftail-call-workaround=): Fix a typo - lenghts to lengths.

2019-05-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/90539
        * gfortran.h (gfc_has_dimen_vector_ref): Add prototype.
        * trans.h (gfc_conv_subref_array_arg): Add argument check_contiguous.
        (gfc_conv_is_contiguous_expr): Add prototype.
        * frontend-passes.c (has_dimen_vector_ref): Remove prototype,
        rename to
        (gfc_has_dimen_vector_ref): New function name.
        (matmul_temp_args): Use gfc_has_dimen_vector_ref.
        (inline_matmul_assign): Likewise.
        * trans-array.c (gfc_conv_array_parameter): Also check for absence
        of a vector subscript before calling gfc_conv_subref_array_arg.
        Pass additional argument to gfc_conv_subref_array_arg.
        * trans-expr.c (gfc_conv_subref_array_arg): Add argument
        check_contiguous. If that is true, check if the argument
        is contiguous and do not repack in that case.
        * trans-intrinsic.c (gfc_conv_intrinsic_is_contiguous): Split
        away most of the work into, and call
        (gfc_conv_intrinsic_is_coniguous_expr): New function.

2019-05-29  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/90329
        * lang.opt (fbroken-callers): Remove.
        (ftail-call-workaround, ftail-call-workaround=): New options.
        * gfortran.h (struct gfc_namespace): Add implicit_interface_calls.
        * interface.c (gfc_procedure_use): Set implicit_interface_calls
        for calls to implicit interface procedures.
        * trans-decl.c (create_function_arglist): Use flag_tail_call_workaround
        instead of flag_broken_callers.  If it is not 2, also require
        sym->ns->implicit_interface_calls.
        * invoke.texi (fbroken-callers): Remove documentation.
        (ftail-call-workaround, ftail-call-workaround=): Document.

2019-05-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/90539
        * trans-types.c (get_formal_from_actual_arglist): Set rank
        and lower bound for assumed size arguments.

2019-05-22  Andrew Stubbs  <ams@codesourcery.com>

        * trans-stmt.c (gfc_trans_critical): Use size_type_node for
        gfor_fndecl_caf_lock and gfor_fndecl_caf_unlock calls.
        (gfc_trans_allocate): Use size_type_node for gfor_fndecl_caf_sync_all
        call.

2019-05-22  Jeff Law  <law@redhat.com>
            Mark Eggleston  <mark.eggleston@codethink.com>

        PR fortran/89100
        * gfortran.texi: Add Default widths for F, G and I format
        descriptors to Extensions section.
        * invoke.texi: Add -fdec-format-defaults
        * io.c (check_format): Use default widths for i, f and g when
        flag_dec_format_defaults is enabled.
        * lang.opt: Add new option.
        * options.c (set_dec_flags): Add SET_BITFLAG for
        flag_dec_format_defaults.

2019-05-21  Janne Blomqvist  <jb@gcc.gnu.org>

        PR libfortran/90038
        * intrinsic.texi (EXECUTE_COMMAND_LINE): Explain new
        wait=.false. implementation.

2019-05-20  Mark Eggleston  <markeggleston@codethink.com>

        * gfortran.texi: Remove reference to the ASSIGN statement, capitalise
        complex, state that padding is with spaces and modify the Hollerith
        constant examples.

2019-05-19  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/90498
        * trans-stmt.c (trans_associate_var) Do not use the saved
        descriptor if the expression is a COMPONENT_REF.

2019-05-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/90329
        * invoke.texi: Document -fbroken-callers.
        * lang.opt: Add -fbroken-callers.
        * trans-decl.c (create_function_arglist): Only set
        DECL_HIDDEN_STRING_LENGTH if flag_broken_callers is set.

2019-05-17  Thomas Schwinge  <thomas@codesourcery.com>

        PR fortran/89433
        * f95-lang.c (gfc_attribute_table): Set min_len to -1 for "omp
        declare target".
        * trans-decl.c (add_attributes_to_decl): Refer to OpenACC
        'routine' clauses from "omp declare target" attribute.

2019-05-16  Martin Sebor  <msebor@redhat.com>

        * gfortranspec.c (append_arg): Spell out the word "argument."

2019-05-16  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/90329
        * trans-decl.c (create_function_arglist): Set
        DECL_HIDDEN_STRING_LENGTH on hidden string length PARM_DECLs if
        len is constant.

2019-05-15  Janne Blomqvist  <jb@gcc.gnu.org>

        * parse.c (gfc_parse_file): Remove translation string markers.

2019-05-12  Janne Blomqvist  <jb@gcc.gnu.org>

        * dump-parse-tree.c (get_c_type_name): Use macros for complex type
        names.
        * parse.c (gfc_parse_file): Define complex macros, add CPP support
        when printing C prototypes.

2019-05-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/61968
        * interface.c (compare_actual_formal): Do not create a vtab if
        the actual argument is assumed type.

2019-05-10  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/90093
        * trans-decl.c (convert_CFI_desc): Test that the dummy is
        present before doing any of the conversions.

        PR fortran/90352
        * decl.c (gfc_verify_c_interop_param): Restore the error for
        charlen > 1 actual arguments passed to bind(C) procs.
        Clean up trailing white space.

        PR fortran/90355
        * trans-array.c (gfc_trans_create_temp_array): Set the 'span'
        field to the element length for all types.
        (gfc_conv_expr_descriptor): The force_no_tmp flag is used to
        prevent temporary creation, especially for substrings.
        * trans-decl.c (gfc_trans_deferred_vars): Rather than assert
        that the backend decl for the string length is non-null, use it
        as a condition before calling gfc_trans_vla_type_sizes.
        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): 'force_no_tmp'
        is set before calling gfc_conv_expr_descriptor.
        * trans.c (get_array_span): Move the code for extracting 'span'
        from gfc_build_array_ref to this function. This is specific to
        descriptors that are component and indirect references.
        * trans.h : Add the force_no_tmp flag bitfield to gfc_se.

2019-05-08  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/90351
        PR fortran/90329
        * dump-parse-tree.c: Include version.h.
        (gfc_dump_external_c_prototypes): New function.
        (get_c_type_name): Select "char" as a name for a simple char.
        Adjust to handling external functions. Also handle complex.
        (write_decl): Add argument bind_c. Adjust for dumping of external
        procedures.
        (write_proc): Likewise.
        (write_interop_decl): Add bind_c argument to call of write_proc.
        * gfortran.h: Add prototype for gfc_dump_external_c_prototypes.
        * lang.opt: Add -fc-prototypes-external flag.
        * parse.c (gfc_parse_file): Move dumping of BIND(C) prototypes.
        Call gfc_dump_external_c_prototypes if option is set.
        * invoke.texi: Document -fc-prototypes-external.

2019-05-06  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/90290
        * match.c (gfc_match_stopcode): Check F2008 condition on stop code.

2019-05-01  Andrew Benson  <abensonca@gmail.com>

        * module.c (write_module): Initialize module_column before writing
        module to ensure line break occurs at correct column.

2019-05-01  Dominique d'Humieres  <dominiq@gcc.gnu.org>

        PR fortran/60144
        * match.c (gfc_match_parens): Change the location for missing ')'.
        (gfc_match_if): Detect a missing '('. Remove the spurious named
        constant error. Change the wording of some errors.
        (gfc_match_else): Change the wording of an error.
        (gfc_match_elseif): Detect a missing '('. Improve the matching
        process to get a better syntax analysis.

2019-04-19  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/90166
        * decl.c (in_module_or_interface): New function to check that the
        current state is in a module, submodule, or interface.
        (gfc_match_prefix): Use it.

2019-04-22  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/57284
        * resolve.c (find_array_spec): If this is a class expression
        and the symbol and component array specs are the same, this is
        not an error.
        *trans-intrinsic.c (gfc_conv_intrinsic_size): If a class symbol
        argument, has no namespace, it has come from the interface
        mapping and the _data component must be accessed directly.

2019-04-17  Thomas Schwinge  <thomas@codesourcery.com>

        PR fortran/90048
        * openmp.c (gfc_resolve_do_iterator): Handle sharing_clauses for
        OpenACC, too.
        (gfc_resolve_oacc_blocks): Populate sharing_clauses with private
        clauses.

2019-04-14  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/89843
        * trans-decl.c (gfc_get_symbol_decl): Assumed shape and assumed
        rank dummies of bind C procs require deferred initialization.
        (convert_CFI_desc): New procedure to convert incoming CFI
        descriptors to gfc types and back again.
        (gfc_trans_deferred_vars): Call it.
        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Null the CFI
        descriptor pointer. Free the descriptor in all cases.

        PR fortran/89846
        * expr.c (is_CFI_desc): New function.
        (is_subref_array): Tidy up by referencing the symbol directly.
        * gfortran.h : Prototype for is_CFI_desc.
        * trans_array.c (get_CFI_desc): New function.
        (gfc_get_array_span, gfc_conv_scalarized_array_ref,
        gfc_conv_array_ref): Use it.
        * trans.c (get_array_span): Extract the span from descriptors
        that are indirect references.

        PR fortran/90022
        * trans-decl.c (gfc_get_symbol_decl): Make sure that the se
        expression is a pointer type before converting it to the symbol
        backend_decl type.
        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Eliminate
        temporary creation for intent(in).

2019-04-13  Dominique d'Humieres  <dominiq@gcc.gnu.org>

        PR fortran/79842
        * module.c (gfc_use_module): use complete sentences.

2019-04-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR translation/89939
        * frontend-passes.c (B_ERROR): Delete macro.
        (C_ERROR): Delete macro.
        (B_ERROR_1): New macro.
        (C_ERROR_1): New macro.
        (C_ERROR_2): New macro.
        (inline_matmul_assign): Use new macros.
        (call_external_blas): Likewise.

2019-04-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/87352
        * gfortran.h (gfc_component): Add finalized field.
        * class.c (finalize_component): If the component is already
        finalized, return early.  Set component->finalized on exit.

2019-04-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/89981
        * resolve.c (resolve_global_procedure): If the global symbol is an
        ENTRY, also look up its name among the entries.

2019-04-04  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/89904
        * check.c (gfc_check_transfer): Reject procedures as actual
        arguments for SOURCE and MOLD of TRANSFER intrinsic.

2019-04-03  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/68567
        * expr.c (gfc_reduce_init_expr): Add extra check to avoid
        dereferencing a null pointer.

2019-04-03  Dominique d'Humieres  <dominiq@gcc.gnu.org>

        PR fortran/89375
        * expr.c (comp_pointer): Remove redundant condition.

2019-03-31  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/83515
        PR fortran/85797
        * trans-types.c (gfc_typenode_for_spec): Handle conversion for
        procedure pointers.
        * target-memory.c (gfc_element_size): Handle size determination
        for procedure pointers.

2019-03-31  Thomas Koenig  <tkoenig@gcc.gnu.org>

        * dump-parse-tree.c (debug): Add for symbol_attribute *,
        symbol_attribute and gfc_ref * arguments.

2019-03-30  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/89841
        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Use the formal
        argument attributes rather than those of the actual argument.

        PR fortran/89842
        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Call
        'set_dtype_for_unallocated' for any type of arrayspec.

2019-03-27  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/85537
        * expr.c (gfc_check_assign_symbol): Reject internal and dummy procedures
        in procedure pointer initialization.

2019-03-27  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/88247
        * expr.c (is_subref_array): Permit substrings to be detected
        as subref arrays.
        * trans-array.c (get_array_ctor_var_strlen): Obtain the length
        of deferred length strings. Handle substrings with a NULL end
        expression.
        (trans_array_constructor): Remove an unnecessary blank line.
        (gfc_conv_scalarized_array_ref): Skip to label 'done' if 'decl'
        is a pointer array.
        (get_array_charlen): If the expression is an array, convert the
        first element of the constructor and use its string length. Get
        a new charlen if necessary.
        (gfc_conv_expr_descriptor): Call 'get_array_charlen' for array
        constructor expressions. If the ss_info string length is
        available, use that to set the span of character arrays.
        * trans-expr.c (gfc_get_expr_charlen): Handle substrings
        * trans-stmt.c (trans_associate_var): Set the pointer array
        flag for variable targets and constant array constructors. Take
        care not to reset the string length or the span in the case of
        expressions that are not converted as direct by reference.

2019-03-25  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * intrinsic.texi (MINLOC): Fix typo in BACK argument documentation.
        (MAXLOC): Likewise.

2019-03-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/78865
        * interface.c (compare_actual_formal): Change errors about
        missing or extra to gfc_error_now to make sure they are issued.
        Change "spec" to "specifier" in message.
        * resolve.c (resolve_global_procedure): Also check for mismatching
        interface with global symbols if the namespace has already been
        resolved.

2019-03-21  Thomas Schwinge  <thomas@codesourcery.com>

        PR fortran/72741
        * openmp.c (gfc_match_oacc_routine): Set the level of parallelism
        for all variants.
        (gfc_resolve_oacc_routines): Call gfc_add_omp_declare_target.

        PR fortran/89773
        * gfortran.h (gfc_oacc_routine_name): Add loc member.
        (gfc_resolve_oacc_routines): Declare.
        * openmp.c (gfc_match_oacc_routine): Move some error checking
        into...
        (gfc_resolve_oacc_routines): ... this new function.
        * resolve.c (resolve_codes): Call it.

        PR fortran/72741
        * openmp.c (gfc_match_oacc_routine): Clarify.

        PR fortran/72741
        * module.c (verify_OACC_ROUTINE_LOP_NONE): New function.
        (enum ab_attribute): Add AB_OACC_ROUTINE_LOP_GANG,
        AB_OACC_ROUTINE_LOP_WORKER, AB_OACC_ROUTINE_LOP_VECTOR,
        AB_OACC_ROUTINE_LOP_SEQ.
        (attr_bits): Add these.
        (mio_symbol_attribute): Handle these.

2019-03-20  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/71861
        * symbol.c (check_conflict): ABSTRACT attribute conflicts with
        INTRINSIC attribute.

2019-03-18  Thomas Koenig  <tkoeng@gcc.gnu.org>

        PR fortran/68009
        * iresolve.c: Include trans.h.
        (gfc_resolve_fe_runtine_error): Set backend_decl on
        resolved_sym.

2019-03-17  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/88008
        * gfortran.h (expr_t): Add EXPR_UNKNOWN.
        * expr.c (gfc_copy_expr): Add EXPR_UNKNOWN to switch statement.
        (gfc_simplify_expr): Likewise.
        * module.c (mio_expr): Likewise.
        * resovle.c (extract_compcall_passed_object): Issue error on
        unknown type.
        (check_typebound_baseobject): Issue error on wrong type.
        * trans-expr.c (gfc_apply_interface_mapping_to_expr): Add
        EXPR_UNKNOWN to switch statement.

2019-03-16  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/89724
        * scanner.c (load_line): Remove linenum and current_line static
        variables, add warned_tabs automatic variable.  Use current_file->line
        instead of current_line and warned_tabs boolean to avoid diagnosing
        tabs multiple times on the same line.

2019-03-16  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/84394
        * symbol.c (gfc_add_subroutine): If we are encountering a
        subrtoutine within a BLOCK DATA and the name starts with an
        underscore, do not check.

2019-03-15  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/60091
        * expr.c (gfc_check_pointer_assign): Correct and improve error
        messages for invalid pointer assignments.

2019-03-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

        * gfortran.texi: Document Q edit descriptor under
        "Extensions not implemented in GNU Fortran".

2019-03-13  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/87045
        * trans-expr.c (gfc_trans_pointer_assignment): Move check for same
        string length so that we do not get false errors for deferred
        length.

2019-03-13  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/89601
        * decl.c (gfc_match_formal_arglist): Reject empty type parameter lists.
        (gfc_match_derived_decl): Mark as PDT only if type parameter list was
        matched successfully.

2019-03-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/66695
        PR fortran/77746
        PR fortran/79485
        * gfortran.h (gfc_symbol): Add bind_c component.
        (gfc_get_gsymbol): Add argument bind_c.
        * decl.c (add_global_entry): Add bind_c argument to
        gfc_get_symbol.
        * parse.c (parse_block_data): Likewise.
        (parse_module): Likewise.
        (add_global_procedure): Likewise.
        (add_global_program): Likewise.
        * resolve.c (resolve_common_blocks): Likewise.
        (resolve_global_procedure): Likewise.
        (gfc_verify_binding_labels): Likewise.
        * symbol.c (gfc_get_gsymbol): Add argument bind_c. Set bind_c
        in gsym.
        * trans-decl.c (gfc_get_module_backend_decl): Add bind_c argument
        to gfc_get_symbol.
        (gfc_get_extern_function_decl): If the sym has a binding label
        and it cannot be found in the global symbol tabel, it is the wrong
        one and vice versa.

2019-03-12  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/87673
        * match.c (gfc_match_type_spec): Remove call to
        gfc_resolve_expr for character length.

2019-03-12  Martin Liska  <mliska@suse.cz>

        * decl.c (add_init_expr_to_sym): Replace usage of 'can't'
        with 'cannot'.
        (variable_decl): Likewise.
        (cray_pointer_decl): Likewise.
        (match_binding_attributes): Likewise.
        * f95-lang.c (gfc_init): Likewise.
        * interface.c (gfc_check_typebound_override): Likewise.
        * intrinsic.c (make_generic): Likewise.
        * module.c (dump_module): Likewise.
        (gfc_use_module): Likewise.
        * primary.c (gfc_convert_to_structure_constructor): Likewise.
        * resolve.c (resolve_entries): Likewise.
        (check_generic_tbp_ambiguity): Likewise.
        (get_checked_tb_operator_target): Likewise.
        * scanner.c (load_file): Likewise.
        * trans-expr.c (gfc_conv_intrinsic_to_class): Likewise.

2019-03-12  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/89363
        PR fortran/89364
        * trans-expr.c (set_dtype_for_unallocated): New function.
        (gfc_conv_gfc_desc_to_cfi_desc): Call it for allocatable and
        pointer arguments.
        (gfc_conv_procedure_call): Likewise. Also, set the ubound of
        the final dimension to -1 for assumed rank formal args that are
        associated with assumed size arrays.
        * trans-intrinsic.c (gfc_conv_intrinsic_bound): Return -1 for
        the final dimension of assumed rank entities that are argument
        associated with assumed size arrays.
        (gfc_conv_intrinsic_shape): Likewise return -1 for the final
        dimension of the shape intrinsic.

2019-03-11  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/89651
        * trans-openmp.c (gfc_omp_clause_default_ctor): Set TREE_NO_WARNING
        on decl if adding COND_EXPR for allocatable.
        (gfc_omp_clause_copy_ctor): Set TREE_NO_WARNING on dest.

2019-03-11  Martin Liska  <mliska@suse.cz>

        * decl.c (match_record_decl): Wrap an option name
        in a string format message and fix GNU coding style.
        (gfc_match_pointer): Likewise.
        * expr.c (find_array_section): Likewise.
        * intrinsic.c (gfc_is_intrinsic): Likewise.
        * options.c (gfc_post_options): Likewise.
        * primary.c (match_integer_constant): Likewise.
        * trans-common.c (translate_common): Likewise.

2019-03-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/66089
        * trans-array.c (gfc_scalar_elemental_arg_saved_as_reference):
        Return false if a scalar tempoary is needed.
        (gfc_walk_variable_expr): Fix up class refs.

2019-03-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/87734
        * symbol.c (gfc_add_procedure): Only throw an error if the
        procedure has not been declared either PUBLIC or PRIVATE.

2019-03-09  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/71544
        * trans-types.c (gfc_typenode_for_spec) Set ts->is_c_interop of
        C_PTR and C_FUNPTR.
        (create_fn_spec): Mark argument as escaping if ts->is_c_interop is set.

2019-03-09  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/84504
        * expr.c (gfc_check_assign_symbol): Deal with procedure pointers to
        pointer-valued functions.

2019-03-09  Thomas König  <tkoenig@gcc.gnu.org>

        PR fortran/71203
        * decl.c (add_init_expr_to_sym): Add shape if init has none.  Add
        asserts that it has to be an EXPR_ARRAY in this case.

2019-03-08  Jakub Jelinek  <jakub@redhat.com>

        PR other/80058
        * arith.c (gfc_complex2complex): Avoid two spaces in the middle of
        diagnostics.
        * resolve.c (resolve_allocate_expr): Likewise.

2019-03-06  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/71203
        * expr.c (simplify_const_ref): Avoid null pointer dereference.

2019-03-03  Harald Anlauf  <anlauf@gmx.de>
            Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77583
        * symbol.c (check_conflict): Check for valid procedure name
        passed to error reporting routine.

2019-03-03  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/72714
        * resolve.c (resolve_allocate_expr): Add some tests for coarrays.

2019-03-02  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/89516
        * check.c (gfc_calculate_transfer_sizes): Correct checks for cases
        where storage size of elements of MOLD is 0.

2019-02-28  Thomas Schwinge  <thomas@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>

        PR fortran/72741
        PR fortran/89433
        * openmp.c (gfc_match_oacc_routine): Handle repeated use of the
        Fortran OpenACC 'routine' directive.

        PR fortran/72741
        * gfortran.h (enum oacc_routine_lop): Add OACC_ROUTINE_LOP_ERROR.
        * openmp.c (gfc_oacc_routine_lop, gfc_match_oacc_routine): Use it.
        * trans-decl.c (add_attributes_to_decl): Likewise.

        PR fortran/72741
        PR fortran/89433
        * openmp.c (gfc_match_oacc_routine): Accept intrinsic symbols.

2019-02-26  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/89492
        * check.c (gfc_calculate_transfer_sizes): Handle cases where
        storage size of elements of MOLD is 0.

2019-02-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/89496
        * trans-types.c (get_formal_from_actual_arglist): If
        the actual arglist has no expression, the corresponding
        formal arglist is an alternate return.

2019-02-26  Uroš Bizjak  <ubizjak@gmail.com>

        * invoke.texi (-ffpe-trap): Use @var for every item in the list.

2019-02-26  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/43210
        * trans-array.c (gfc_conv_array_initializer): Use RANGE_EXPR instead
        of duplicating the initializer possibly many times.

2019-02-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/89174
        * trans-expr.c (gfc_find_and_cut_at_last_class_ref): Add is_mold
        to arguments. If we are dealing with a MOLD, call
        gfc_expr_to_initialize().
        * trans-stmt.c (gfc_trans_allocate): For MOLD, pass is_mold=true
        to gfc_find_and_cut_at_last_class_ref.
        * trans.h (gfc_find_and_cut_at_last_class_ref): Add optional
        argument is_mold with default false.

2019-02-24  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/89266
        PR fortran/88326
        * target-memory.c (gfc_element_size): Return false if element size
        cannot be determined; element size is returned separately.
        (gfc_target_expr_size): Return false if expression size cannot be
        determined; expression size is returned separately.
        * target-memory.h: Adjust prototypes.
        * check.c (gfc_calculate_transfer_sizes): Adjust references to
        gfc_target_expr_size, gfc_element_size.
        * arith.c (hollerith2representation): Likewise.
        * class.c (find_intrinsic_vtab): Likewise.
        * simplify.c (gfc_simplify_sizeof): Likewise.

2019-02-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/84387
        * trans-io.c (transfer_expr): Do not return if there are no
        components to the derived type or class.

2019-02-23  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/88117
        * resolve.c (deferred_op_assign): Return if the lhs expression
        has the pointer attribute.
        * trans-expr.c (gfc_trans_assignment_1): Do not fix the string
        length if the lhs expression has the pointer attribute.

2019-02-23  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/89385
        PR fortran/89366
        * decl.c (gfc_verify_c_interop_param): Restriction on string
        length being one is lifted for F2018.
        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): For scalar
        characters with intent in, make a temporary and copy the result
        of the expression evaluation into it.
        (gfc_conv_procedure_call): Set a flag for character formal args
        having a character length that is not unity. If the procedure
        is bind C, call gfc_conv_gfc_desc_to_cfi_desc in this case.
        Also, extend bind C calls to unconditionally convert both
        pointers and allocatable expressions.

2019-02-23  David Malcolm  <dmalcolm@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/88074
        * simplify.c (norm2_do_sqrt, gfc_simplify_norm2): Use
        mpfr_number_p && !mpfr_zero_p instead of mpfr_regular_p.
        (norm2_add_squared): Likewise.  Use mp_exp_t rather than mpfr_exp_t.

2019-02-22  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/83057
        * io.c (gfc_match_open): Fix logic in checks of OPEN statement
        when NEWUNIT= is specified.

2019-02-22  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/89431
        * gfortran.texi: Fix documentation to match the implementation.

2019-02-22  Thomas Schwinge  <thomas@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>

        PR fortran/72741
        * gfortran.h (oacc_routine_lop): New enum.
        (symbol_attribute): Use it.
        * openmp.c (gfc_oacc_routine_dims): Replace with...
        (gfc_oacc_routine_lop): ... this new function.
        (gfc_match_oacc_routine): Adjust.
        * trans-decl.c (add_attributes_to_decl): Likewise.

2019-02-22  Thomas Schwinge  <thomas@codesourcery.com>

        * openmp.c (gfc_match_oacc_declare): Revert earlier changes.

2019-02-21  Thomas Koenig  <tkoenig@gcc.gnu.org>

        * dump-parse-tree.c (debug): Implement for gfc_expr *,
        gfc_typespec *, gfc_typespec and gfc_symbol *.

2019-02-21  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/86119
        * class.c (gfc_get_len_component): Add argument k for kind.
        If the kind of the resulting expression is not equal to k,
        convert it.
        * gfortran.h (gfc_len_component): Adjust prototype.
        * simplify.c (gfc_simplify_len): Pass kind to
        gfc_get_len_component.

2019-02-20  Martin Liska  <mliska@suse.cz>

        * gfortran.texi: Change singular to plural.

2019-02-20  Martin Liska  <mliska@suse.cz>

        * gfortran.texi: Document Fortran header directive.

2019-02-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/89384
        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): If the dummy
        argument is contiguous and the actual argument may not be,
        use gfc_conv_subref_array_arg.

2019-02-19  Thomas Schwinge  <thomas@codesourcery.com>

        PR c/87924
        * openmp.c (gfc_match_omp_clauses): Add representation of wait clause
        without argument as 'wait (GOMP_ASYNC_NOVAL)'.

2019-02-18  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/87689
        * trans-decl.c (gfc_get_extern_function_decl): Add argument
        actual_args and pass it through to gfc_get_function_type.
        * trans-expr.c (conv_function_val): Add argument actual_args
        and pass it on to gfc_get_extern_function_decl.
        (conv_procedure_call): Pass actual arguments to conv_function_val.
        * trans-types.c (get_formal_from_actual_arglist): New function.
        (gfc_get_function_type): Add argument actual_args.  Generate
        formal args from actual args if necessary.
        * trans-types.h (gfc_get_function_type): Add optional argument.
        * trans.h (gfc_get_extern_function_decl): Add optional argument.

2019-02-18  Martin Liska  <mliska@suse.cz>

        * decl.c (gfc_match_gcc_builtin): Add support for filtering
        of builtin directive based on multilib ABI name.

2019-02-17  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/88299
        * resolve.c (resolve_common_blocks,resolve_common_vars): Move
        check for obsolent COMMON feature in F2018 to better place.

2019-02-17  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/89077
        * decl.c (gfc_set_constant_character_len): Clear original string
        representation after padding has been performed to target length.

2019-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/88074
        * simplify.c (simplify_transformation_to_array): Run post_op
        immediately after processing corresponding row, rather than at the
        end.
        (norm2_scale): New variable.
        (add_squared): Rename to ...
        (norm2_add_squared): ... this.  Scale down operand and/or result
        if needed.
        (do_sqrt): Rename to ...
        (norm2_do_sqrt): ... this.  Handle the result == e case.  Scale up
        result and clear norm2_scale.
        (gfc_simplify_norm2): Clear norm2_scale.  Change add_squared to
        norm2_add_squared and &do_sqrt to norm2_do_sqrt.  Scale up result
        and clear norm2_scale again.

2019-02-17  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/71066
        * trans-decl.c (generate_coarray_sym_init): For an array
        constructor in a DATA statement of a coarray variable, set the
        rank to 1 to avoid confusion later on.  If the constructor
        contains only one value, use that for initiailizig.

2019-02-14  Janne Blomqvist  <jb@gcc.gnu.org>

        PR fortran/81552
        * gfortran.h (gfc_option_t): Make flag_init_integer_value a long.
        * options.c (gfc_handle_option): Use strtol instead of atoi.
        * invoke.texi: Document -finit-integer behavior in more detail.

2019-02-14  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/88248
        * symbol.c: Move check for labeled DO statement from
        gfc_define_st_label to gfc_reference_st_label.

2019-02-14  Cesar Philippidis  <cesar@codesourcery.com>

        PR fortran/72715
        * openmp.c (resolve_oacc_nested_loops): Error on do concurrent
        loops.

2019-02-13  Martin Liska  <mliska@suse.cz>

        PR fortran/88649
        * resolve.c (resolve_operator): Initialize 't' right
        after function entry.  Skip switch (e->value.op.op)
        for -fdec operands that become function calls.

2019-02-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/71723
        * expr.c (gfc_check_assign): Add argument is_init_expr.  If we are
        looking at an init expression, issue error if the target is not a
        TARGET and we are not looking at a procedure pointer.
        * gfortran.h (gfc_check_assign): Add optional argument
        is_init_expr.

2019-02-09  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/89077
        * resolve.c (gfc_resolve_substring_charlen): Check substring
        length for constantness prior to general calculation of length.

2019-02-09  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/89200
        * trans-array.c (gfc_trans_create_temp_array): Set the 'span'
        field for derived types.

2019-02-04  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/89077
        * decl.c (add_init_expr_to_sym): Copy length of string initializer
        to declared symbol.

2019-02-04  Martin Liska  <mliska@suse.cz>

        PR fortran/89185
        * resolve.c (resolve_ref): Remove breakout variable as
        we need to prevent prev = &(*prev)->next to happen
        with *prev == NULL.

2019-02-04  Martin Liska  <mliska@suse.cz>

        PR fortran/88912
        * scanner.c (load_file): Report error for -fpre-include
        file and do not ICE.

2019-02-02  Dominique d'Humieres  <dominiq@gcc.gnu.org>

        PR fortran/81344
        * invoke.texi: Document the behavior of repeated -ffpe-trap
        and -ffpe-summary.

2019-02-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/88298
        * arith.c (gfc_int2int): Do not warn if src->do_not_warn is set.
        * gfortran.h (gfc_expr): Add flag do_not_warn.
        * intrinsic.c (gfc_convert_type_warn): Set expr->do_not_warn if
        no warning is desired.

2019-02-02  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/88393
        * trans-expr.c (gfc_conv_procedure_call): For derived entities,
        passed in parentheses to class formals, invert the order of
        copying allocatable components to taking the _data of the
        class expression.

2019-02-02  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/88980
        * trans-array.c (gfc_array_init_size): Add element_size to the
        arguments.
        (gfc_array_allocate): Remove the recalculation of the size of
        the element and use element_size from the call to the above.
        Unconditionally set the span field of the descriptor.

2019-02-02  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/88685
        * expr.c (is_subref_array): Move the check for class pointer
        dummy arrays to after the reference check. If we haven't seen
        an array reference other than an element and a component is not
        class or derived, return false.

2019-02-01  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/83246
        PR fortran/89084
        * trans-decl.c (generate_local_decl): Add referenced FL_PARAMETERs
        if sym->ns->construct_entities rather than if
        sym->ns->parent->code->op == EXEC_BLOCK.

2019-01-31  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/88669
        * resolve.c (resolve_component): If the reference is a BT_CLASS,
        copy the contiguous attribute from the reference and use the
        correct attributes.

2019-01-30  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/52564
        * io.c (match_io): Add check for comma after '*' without subsequent
        IO list.

2019-01-30  Dominique d'Humieres  <dominiq@gcc.gnu.org>

        PR fortran/52884
        * invoke.texi: Document the promotion of double precision
        constants.

2019-01-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/57048
        * interface.c (gfc_compare_types): If a derived type and an
        integer both have a derived type, and they are identical,
        this is a C binding type and compares equal.

2019-01-26  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/57553
        * expr.c (check_inquiry): Add list of inquiry functions allowed in
        constant expressions for F2008+.

2019-01-25  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/85780
        * decl.c (gfc_match_subroutine): Check for conflict between BIND(C)
        and alternative return.

2019-01-24  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/88929
        * trans-array.c (gfc_conv_descriptor_elem_len): New function.
        * trans-array.h : Add prototype for above.
        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Take account of
        assumed rank arrays being flagged by rank = -1 in expressions.
        Intent in arrays need a pointer to a copy of the data to be
        assigned to the descriptor passed for conversion. This should
        then be freed, together with the CFI descriptor on return from
        the C call.

2019-01-22  Harald Anlauf  <anlauf@gmx.de>

        PR fortran/88579
        * trans-expr.c (gfc_conv_power_op): Handle cases of (2**e) ** integer
        and (- 2**e) ** integer.

2019-01-19  Dominique d'Humieres  <dominiq@gcc.gnu.org>

        PR fortran/37835
        * resolve.c (resolve_types): Add !flag_automatic.
        * symbol.c (gfc_add_save): Silence warnings.

2019-01-19  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/77960
        * io.c (match_io_element): input-item cannot be an external function.

2018-01-19  Thomas Koenig  <tkoenig@gcc.gnu.org>
            Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/56789
        * trans-expr.c (gfc_conv_procedure_call): Call
        gfc_conv_subref_array_arg if the formal arg is contiguous
        and the actual arg may not be.

2019-01-17  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/88871
        * resolve.c (resolve_ref): Fix logic for removal of
        reference.

2019-01-19  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/88902
        * trans-decl.c (gfc_get_symbol_decl): Don't add length to function
        or parent function if it has been added there already.

2019-01-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/43136
        * resolve.c (resolve_array_ref): Add equal_length argument; set it
        if the length of the substring equals that of the orignal
        variable.
        (resolve_ref): Remove the substring if it is equal in length to
        the original variable, unless it is an EXPR_SUBSTRING).

2019-01-15  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/81849
        * resolve.c (resolve_symbol): Host associated varaibles can appear
        in the specification statement of a RESULT array.

2019-01-15  Paul Thomas  <pault@gcc.gnu.org>

        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Deal with exprs
        that are indirect references; ie. dummy arguments.

2019-01-13  Dominique d'Humieres  <dominiq@gcc.gnu.org>

        PR fortran/88803
        * gfortran.texi: Replace @xref with @ref and adjust the sentence.

2019-01-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/57992
        * trans-array.c (gfc_conv_array_parameter): Do not pack/unpack
        functions with contiguous results.

2019-01-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/59345
        * trans-array.c (gfc_conv_array_parameter): Remove TODO.  Do not
        pack/unpack results of functions which return an explicit-shaped
        or allocatable array.

2019-01-12  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/61765
        * resolve.c (gfc_verify_binding_labels): Break if-elseif-elseif
        structure into independent if's with a return to simplify logic.
        Avoid a check for ENTRY name with bind(c).

2019-01-12  Paul Thomas  <pault@gcc.gnu.org>

        * gfortran.texi: Add description in sections on TS 29113 and
        further interoperability with C.
        * trans-array.c (gfc_conv_descriptor_attribute): New function.
        (gfc_get_dataptr_offset): Remove static function attribute.
        * trans-array.h: Add prototypes for above functions.
        * trans-decl.c: Add declarations for the library functions
        cfi_desc_to_gfc_desc and gfc_desc_to_cfi_desc.
        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): New function.
        (gfc_conv_procedure_call): Call it for scalar and array actual
        arguments, when the formal arguments are bind_c with assumed
        shape or assumed rank.
        * trans.h: External declarations for gfor_fndecl_cfi_to_gfc
        and gfor_fndecl_gfc_to_cfi.

2019-01-11  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/35031
        * decl.c (gfc_match_entry): Check for F2018:C1546.  Fix nearby
        mis-indentation.

2019-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/85956
        PR lto/88733
        * trans-openmp.c: Include attribs.h.
        (gfc_walk_alloc_comps, gfc_omp_clause_linear_ctor): Handle
        VAR_DECL max bound with "omp dummy var" attribute like NULL or
        error_mark_node - recompute number of elts independently.

2019-01-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/59345
        * trans-array.c (gfc_conv_parameter_array): Temporary
        arrays generated for expressions do not need to be repacked.

2019-01-10  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/86322
        * decl.c (top_var_list): Set locus of expr.
        (gfc_match_data): Detect pointer on non-rightmost part-refs.

2019-01-09  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/88376
        * resolve.c (is_illegal_recursion): Remove an assert().

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

        PR other/16615
        * expr.c: Change "can not" to "cannot".

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

        PR other/16615
        * class.c: Mechanically replace "can not" with "cannot".
        * decl.c: Likewise.
        * expr.c: Likewise.
        * gfc-internals.texi: Likewise.
        * intrinsic.texi: Likewise.
        * invoke.texi: Likewise.
        * io.c: Likewise.
        * match.c: Likewise.
        * parse.c: Likewise.
        * primary.c: Likewise.
        * resolve.c: Likewise.
        * symbol.c: Likewise.
        * trans-array.c: Likewise.
        * trans-decl.c: Likewise.
        * trans-intrinsic.c: Likewise.
        * trans-stmt.c: Likewise.

2019-01-09  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/68426
        * simplify.c (gfc_simplify_spread): Also simplify if the
        type of source is an EXPR_STRUCTURE.

2019-01-08  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/88047
        * class.c (gfc_find_vtab): For polymorphic typespecs, the components of
        the class container may not be available (in case of invalid code).

2019-01-08  Richard Biener  <rguenther@suse.de>

        PR fortran/88611
        * trans-expr.c (gfc_conv_initializer): For ISOCBINDING_NULL_*
        directly build the expected GENERIC tree.

2019-01-07  Thomas Koenig  <tkoenig@gcc.gnu.org>
            Harald Anlauf  <anlauf@gmx.de>
            Tobias Burnus  <burnus@gcc.gnu.org>

        PR fortran/45424
        * check.c (gfc_check_is_contiguous): New function.
        * expr.c (gfc_is_not_contiguous): New function.
        * gfortran.h (gfc_isym_id): Add GFC_ISYM_IS_CONTIGUOUS.
        Add prototype for gfc_is_not_contiguous.
        * intrinsic.c (do_ts29113_check): Add GFC_ISYM_IS_CONTIGUOUS.
        (add_function): Add is_contiguous.
        * intrinsic.h: Add prototypes for gfc_check_is_contiguous,
        gfc_simplify_is_contiguous and gfc_resolve_is_contiguous.
        * intrinsic.texi: Add IS_CONTIGUOUS.
        * iresolve.c (gfc_resolve_is_contiguous): New function.
        * simplify.c (gfc_simplify_is_contiguous): New function.
        * trans-decl.c (gfor_fncecl_is_contiguous0): New variable.
        (gfc_build_intrinsic_function_decl): Add it.
        * trans-intrinsic.c (gfc_conv_intrinsic_is_contiguous): New
        function.
        (gfc_conv_intrinsic_function): Handle GFC_ISYM_IS_CONTIGUOUS.

2019-01-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/88658
        * gfortran.h: Add macro gfc_real_4_kind
        * simplify.c (simplify_min_max): Special case for the types of
        AMAX0, AMIN0, MAX1 and MIN1, which actually change the types of
        their arguments.

2019-01-05  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/88009
        * class.c (gfc_find_derived_vtab): Mark the _final component as
        artificial.
        (find_intrinsic_vtab): Ditto. Also add an extra check to avoid
        dereferencing a null pointer and adjust indentation.
        * resolve.c (resolve_fl_variable): Add extra check to avoid
        dereferencing a null pointer. Move variable declarations to local scope.
        (resolve_fl_procedure): Add extra check to avoid dereferencing a null
        pointer.
        * symbol.c (check_conflict): Suppress errors for artificial symbols.

2019-01-01  Steven G. Kargl  <kargl@gcc.gnu.org>

        * parse.c (decode_statement): Suppress "Unclassifiable statement"
        error if previous error messages were emittes.

2019-01-01  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/82743
        * primary.c (gfc_convert_to_structure_constructor): If a character
        in a constructor is too long, add a  warning with
        -Wcharacter-truncation.

2019-01-01  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.
\f
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