path: root/gcc/fortran/ChangeLog

2019-11-27  Tobias Burnus  <tobias@codesourcery.com>

	PR middle-end/92463
	* arith.c (gfc_check_real_range): Replace mp_exp_t by mpfr_exp_t.

2019-11-25  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/92629
	* simplify.c (convert_mpz_to_unsigned): Skip assert for argument
	range when -fno-range-check is specified.

2019-11-25  Mark Eggleston  <mark.eggleston@codethink.com>
	    Jim MacArthur  <jim.macarthur@codethink.co.uk>

	* gfortran.texi: Update Hollerith constants support for character types
	and use in comparisons.
	* invoke.texi: Tidy up list of options. Update description of
	-fdec-char-conversions.
	* resolve.c (is_character_based): New.
	(Convert_hollerith_to_character): New.  (convert_to_numeric): New.
	(resolve_operator): If both sides are character based and -fdec is
	enabled convert Hollerith to character. If an operand is Hollerith, the
	other is numeric and -fdec is enabled convert to numeric.
	(resolve_ordinary_assign): Add check for -fdec-char-conversions for
	assignment of character literals.2019-11-20  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/92463
	Revert r269139
	* simplify.c (norm2_do_sqrt, gfc_simplify_norm2): Use
	mpfr_regular_p instead of mpfr_number_p && !mpfr_zero_p.
	(norm2_add_squared): Likewise.  Use mpfr_exp_t rather than
	mp_exp_t.

2019-11-20  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/92463
	* arith.c (gfc_mpfr_to_mpz): Change mp_exp_t to mpfr_exp_t.
	(gfc_check_real_range): Likewise.
	* gfortran.h (GFC_RND_MODE): Change GMP_RNDN to MPFR_RNDN.
	* module.c (mio_gmp_real): Change mp_exp_t to mpfr_exp_t.
	* simplify.c (degrees_f): Change mp_rnd_t to mpfr_rnd_t.
	(radians_f): Likewise.
	(fullprec_erfc_scaled): Change mp_prec_t to mpfr_prec_t.
	(asympt_erfc_scaled): Likewise.
	(gfc_simplify_nearest): Change mp_exp_t to mpfr_exp_t, and
	GMP_RND* to MPFR_RND*.

2019-11-15  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/69654
	* trans-expr.c (gfc_trans_structure_assign): Move assignment to
	'cm' after treatment of C pointer types and test that the type
	has been completely built before it. Add an assert that the
	backend_decl for each component exists.

2019-11-13  Tobias Burnus  <tobias@codesourcery.com>

	* trans-expr.c (gfc_conv_procedure_call): Fold hidden
	is-present argument to the right type.

2019-11-12  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/81651
	* module.c (gzopen_included_file, gzopen_included_file_1)
	(gzopen_intrinsic_module, bad_module, gfc_use_module): Use fully
	qualified module path for error reporting.

2019-11-12  Martin Liska  <mliska@suse.cz>

	* options.c (gfc_init_options):
	Use SET_OPTION_IF_UNSET.

2019-11-12  Maciej W. Rozycki  <macro@codesourcery.com>
	    Frederik Harwath  <frederik@codesourcery.com>

	gcc/fortran/
	* gfortran.h (gfc_statement): Add ST_OACC_SERIAL_LOOP,
	ST_OACC_END_SERIAL_LOOP, ST_OACC_SERIAL and ST_OACC_END_SERIAL
	enumeration constants.
	(gfc_exec_op): Add EXEC_OACC_SERIAL_LOOP and EXEC_OACC_SERIAL
	enumeration constants.
	* match.h (gfc_match_oacc_serial): New prototype.
	(gfc_match_oacc_serial_loop): Likewise.
	* dump-parse-tree.c (show_omp_node, show_code_node): Handle
	EXEC_OACC_SERIAL_LOOP and EXEC_OACC_SERIAL.
	* match.c (match_exit_cycle): Handle EXEC_OACC_SERIAL_LOOP.
	* openmp.c (OACC_SERIAL_CLAUSES): New macro.
	(gfc_match_oacc_serial_loop): New function.
	(gfc_match_oacc_serial): Likewise.
	(oacc_is_loop): Handle EXEC_OACC_SERIAL_LOOP.
	(resolve_omp_clauses): Handle EXEC_OACC_SERIAL.
	(oacc_code_to_statement): Handle EXEC_OACC_SERIAL and
	EXEC_OACC_SERIAL_LOOP.
	(gfc_resolve_oacc_directive): Likewise.
	* parse.c (decode_oacc_directive) <'s'>: Add case for "serial"
	and "serial loop".
	(next_statement): Handle ST_OACC_SERIAL_LOOP and ST_OACC_SERIAL.
	(gfc_ascii_statement): Likewise.  Handle ST_OACC_END_SERIAL_LOOP
	and ST_OACC_END_SERIAL.
	(parse_oacc_structured_block): Handle ST_OACC_SERIAL.
	(parse_oacc_loop): Handle ST_OACC_SERIAL_LOOP and
	ST_OACC_END_SERIAL_LOOP.
	(parse_executable): Handle ST_OACC_SERIAL_LOOP and
	ST_OACC_SERIAL.
	(is_oacc): Handle EXEC_OACC_SERIAL_LOOP and EXEC_OACC_SERIAL.
	* resolve.c (gfc_resolve_blocks, gfc_resolve_code): Likewise.
	* st.c (gfc_free_statement): Likewise.
	* trans-openmp.c (gfc_trans_oacc_construct): Handle
	EXEC_OACC_SERIAL.
	(gfc_trans_oacc_combined_directive): Handle
	EXEC_OACC_SERIAL_LOOP.
	(gfc_trans_oacc_directive): Handle EXEC_OACC_SERIAL_LOOP and
	EXEC_OACC_SERIAL.
	* trans.c (trans_code): Likewise.

2019-11-11  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/91828
	* simplify.c (gfc_simplify_fraction): Remove fallback path for
	MPFR < 3.1.0.

2019-11-11  Tobias Burnus  <tobias@codesourcery.com>
	    Kwok Cheung Yeung  <kcy@codesourcery.com>

	* trans-expr.c (gfc_conv_expr_present): Check for DECL_ARTIFICIAL
	for the VALUE hidden argument avoiding -fallow-underscore issues.
	* trans-decl.c (create_function_arglist): Also set
	GFC_DECL_OPTIONAL_ARGUMENT for per-value arguments.
	* f95-lang.c (LANG_HOOKS_OMP_CHECK_OPTIONAL_ARGUMENT):
	Renamed from LANG_HOOKS_OMP_IS_OPTIONAL_ARGUMENT; point
	to gfc_omp_check_optional_argument.
	* trans.h (gfc_omp_check_optional_argument): Subsitutes
	gfc_omp_is_optional_argument declaration.
	* trans-openmp.c (gfc_omp_is_optional_argument): Make static.
	(gfc_omp_check_optional_argument): New function.

2019-11-10  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/91413
	* trans-decl.c (gfc_finish_var_decl): Don't print warning when
	-fno-automatic is enabled.

2019-11-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/92123
	*decl.c (gfc_verify_c_interop_param): Remove error asserting
	that pointer or allocatable variables in a bind C procedure are
	not supported. Delete some trailing spaces.
	* trans-stmt.c (trans_associate_var): Correct the attempt to
	treat scalar pointer or allocatable temporaries as if they are
	array descriptors.

2019-11-09  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/92321
	* frontend-passes.c (call_external_blas): Commit symbol for
	external BLAS routine.

2019-11-08  Jakub Jelinek  <jakub@redhat.com>

	* arith.c (character2representation): Change i type to size_t.

2019-11-08  Mark Eggleston  <mark.eggleston@codethink.com>
	    Jim MacArthur  <jim.macarthur@codethink.co.uk>

	* arith.c (hollerith2representation): Use OPT_Wcharacter_truncation in
	call to gfc_warning.
	(character2representation, gfc_character2int, gfc_character2real,
	gfc_character2complex and gfc_character2logical): New.
	* arith.h (gfc_character2int, gfc_character2real, gfc_character2complex,
	gfc_character2logical): Declare.
	* expr.c (gfc_check_assign): Return true if left hand side is numeric
	or logical and the right hand side is character and of kind=1.
	* gfortran.texi: Add -fdec-char-conversions.
	* intrinsic.c (add_conversions): Add conversions from character to
	integer, real, complex and logical types for their supported kinds.
	(gfc_convert_type_warn): Reorder if..else if.. sequence so that warnings
	are produced for conversion to logical.
	* invoke.texi: Add option to list of options.
	* invoke.texi: Add Character conversion subsection to Extensions
	section.
	* lang.opt: Add new option.
	* options.c (set_dec_flags): Add SET_BITFLAG for
	flag_dec_char_conversions.
	* resolve.c (resolve_ordindary_assign): Issue error if the left hand
	side is numeric or logical and the right hand side is a character
	variable.
	* simplify.c (gfc_convert_constant): Assign the conversion function
	depending on destination type.
	* trans-const.c (gfc_constant_to_tree): Use OPT_Wsurprising in
	gfc_warning allowing the warning to be switched off only if
	flag_dec_char_conversions is enabled.

2019-11-08  Tobias Burnus  <tobias@codesourcery.com

	PR fortran/91253
	* scanner.c (skip_fixed_comments): Move comment
	lines to next if block.
	(gfc_next_char_literal): Fix continue_line setting.
	(get_file): Remove bogus ATTRIBUTE_UNUSED.

2019-11-06  Jerry DeLisle  <jvdelisle@gcc.ngu.org>

	PR fortran/90374
	* io.c (check_format): Allow zero width for D, E, EN, and ES
	specifiers as default and when -std=F2018 is given. Retain
	existing errors when using the -fdec family of flags.

2019-11-03  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/92113
	* trans-decl.c (gfc_get_symbol_decl): If __def_init actually
	contains a value, put it into  the read-only section.

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

	* decl.c (match_byte_typespec): New function.  Match BYTE type-spec.
	(gfc_match_decl_type_spec): Use it.

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

	PR fortran/90988
	* decl.c (gfc_match_private, gfc_match_public): Fixed-form source code
	does not require whitespace between PRIVATE (or PUBLIC) and an entity.

2019-11-01  Tobias Burnus  <tobias@codesourcery.com>

	* f95-lang.c (LANG_HOOKS_OMP_ARRAY_DATA): Set to gfc_omp_array_data.
	* trans-array.c (gfc_conv_descriptor_data_get): Handle also
	REFERENCE_TYPE.
	* trans-openmp.c (gfc_omp_array_data): New.
	* trans.h (gfc_omp_array_data): New prototype.

2019-10-31  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92284.
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Free CFI descriptor
	at the end; partial revised revert of Rev. 277502.

2019-10-31  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92277
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Fix DECL_ARTIFICIAL
	checking.

2019-10-30  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92208
	* trans-array.c (gfc_conv_array_parameter): Only copy
	string-length backend_decl if expression is not a function.

2019-10-30  Mark Eggleston  <mark.eggleston@codethink.com>

	* invoke.texi: Add -Wno-overwrite-recursive to list of options. Add
	description of -Wno-overwrite-recursive. Fix typo in description
	of -Winteger-division.
	* lang.opt: Add option -Woverwrite-recursive initialised as on.
	* option.c (gfc_post_options): Output warning only if it is enabled.

2019-10-28  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/91863
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Don't free data
	memory as that's done on the Fortran side.
	(gfc_conv_procedure_call): Handle void* pointers from
	gfc_conv_gfc_desc_to_cfi_desc.

2019-10-27  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/86248
	* resolve.c (flag_fn_result_spec): Correct a typo before the
	function declaration.
	* trans-decl.c (gfc_sym_identifier): Boost the length of 'name'
	to allow for all variants. Simplify the code by using a pointer
	to the symbol's proc_name and taking the return out of each of
	the conditional branches. Allow symbols with fn_result_spec set
	that do not come from a procedure namespace and have a module
	name to go through the non-fn_result_spec branch.

2019-10-25  Cesar Philippidis <cesar@codesourcery.com>
	    Tobias Burnus  <tobias@codesourcery.com>

	* openmp.c (gfc_match_omp_map_clause): Add and pass allow_commons
	argument.
	(gfc_match_omp_clauses): Update calls to permit common blocks for
	OpenACC's copy/copyin/copyout, create/delete, host,
	pcopy/pcopy_in/pcopy_out, present_or_copy, present_or_copy_in,
	present_or_copy_out, present_or_create and self.

2019-10-24  Martin Liska  <mliska@suse.cz>

	PR fortran/92174
	* array.c (gfc_resolve_array_spec): Break the loop
	for out of bounds index.
	* resolve.c (is_non_constant_shape_array): Likewise.

2019-10-23  Steven G. Kargl  <kargl@gcc.gnu.org>

	dump-parse-tree.c (show_expr): Add dumping of BT_BOZ constants.

2019-10-22  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/92174
	* decl.c (attr_decl1): Move check for F2018:C822 from here ...
	* array.c (gfc_set_array_spec): ... to here.

2019-10-18  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/69455
	* trans-decl.c (generate_local_decl): Avoid misconstructed
	intrinsic modules in a BLOCK construct.

2019-10-18  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/91586
	* class.c (gfc_find_derived_vtab): Return NULL
	instead of deref'ing NULL pointer.

2019-10-15  James Norris  <jnorris@codesourcery.com>
	    Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/65438
	* openmp.c (check_array_not_assumed): Remove pointer check.

2019-10-14  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/89943
	decl.c (gfc_match_function_decl): Ignore duplicate BIND(C) for function
	declaration in submodule.  Implement at check for F2018 C1550.
	(gfc_match_entry): Use temporary for locus, which allows removal of
	one gfc_error_now().
	(gfc_match_subroutine): Ignore duplicate BIND(C) for subroutine
	declaration in submodule.  Implement at check for F2018 C1550.

2019-10-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/92004
	* array.c (expand_constructor): Set from_constructor on
	expression.
	* gfortran.h (gfc_symbol): Add maybe_array.
	(gfc_expr): Add from_constructor.
	* interface.c (maybe_dummy_array_arg): New function.
	(compare_parameter): If the formal argument is generated from a
	call, check the conditions where an array element could be
	passed to an array.  Adjust error message for assumed-shape
	or pointer array.  Use correct language for assumed shaped arrays.
	(gfc_get_formal_from_actual_arglist): Set maybe_array on the
	symbol if the actual argument is an array element fulfilling
	the conditions of 15.5.2.4.

2019-10-14  Tobias Burnus  <tobias@codesourcery.com>

	* error.c: Remove debug pragma added in previous commit.

2019-10-14  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92072
	* error.c (error_print, gfc_format_decoder): Fix %C column-
	offset handling.

2019-10-13  Damian Rouson  <damain@sourceryinstitue.org>

	PR fortran/91513
	* resolve.c (resolve_ordinary_assign): Improved error message.

2019-10-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/90297
	* resolve.c (resolve_typebound_function): Remove code with no
	functional effect.

2019-10-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/92017
	* expr.c (simplify_parameter_variable): Set the character length
	of the result expression from the original expression if
	necessary.

2019-10-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91649
	check.c (gfc_check_findloc): Additional checking for valid arguments

2019-10-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91715
	* decl.c (gfc_match_prefix): If matching a type-spec returns an error,
	it's an error so re-act correctly.

2019-10-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/92018
	* check.c (reset_boz): New function.
	(illegal_boz_arg, boz_args_check, gfc_check_complex, gfc_check_float,
	gfc_check_transfer): Use it.
	(gfc_check_dshift): Use reset_boz, and re-arrange the checking to
	help suppress possible run-on errors.
	(gfc_check_and): Restore checks for valid argument types.  Use
	reset_boz, and re-arrange the checking to help suppress possible
	run-on errors.
	* resolve.c (resolve_function): Actual arguments cannot be BOZ in
	a function reference.

2019-10-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/92019
	* array.c (match_subscript): BOZ cannot be an array subscript.

2019-10-11  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92050
	* trans-expr.c (gfc_conv_procedure_call): Handle code generated
	by -fcheck=all.

2019-10-11  Tobias Burnus  <tobias@codesourcery.com>

	* f95-lang.c (LANG_HOOKS_OMP_IS_ALLOCATABLE_OR_PTR): Re-define to
	gfc_omp_is_allocatable_or_ptr.
	* trans-decl.c (create_function_arglist): Set GFC_DECL_OPTIONAL_ARGUMENT
	only if not passed by value.
	* trans-openmp.c (gfc_omp_is_allocatable_or_ptr): New.
	(gfc_trans_omp_clauses): For MAP, handle (present) optional arguments;
	for target update, handle allocatable/pointer scalars.
	* trans.h (gfc_omp_is_allocatable_or_ptr): Declare.

2019-10-10  Tobias Burnus  <tobias@codesourcery.com>

	* trans-openmp.c (gfc_trans_omp_clauses): Actually pass use_device_addr
	on to the middle end.

2019-10-08  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91801
	* simplify.c (gfc_simplify_reshape): Convert a gcc_assert into a
	gfc_error as a user can easily hit the condition.

2019-10-08  Tobias Burnus  <tobias@codesourcery.com>

	* parse.c (parse_executable): Add missing ST_OMP_TARGET_SIMD.

2019-10-08  Tobias Burnus  <tobias@codesourcery.com>

	* match.h (gfc_match_omp_eos_error): Renamed from gfc_match_omp_eos.
	* openmp.c (gfc_match_omp_eos): Make static.
	(gfc_match_omp_eos_error): New.
	* parse.c (matchs, matchdo, matchds): Do as done for 'matcho' -
	if error occurred after OpenMP/OpenACC directive matched, do not
	try other directives.
	(decode_oacc_directive, decode_omp_directive): Call new function
	instead.

2019-10-05  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/47045
	* decl.c (variable_decl): Do not search parent namespace for symbol.

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

	PR fortran/91926
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Correct the
	assignment of the attribute field to account correctly for an
	assumed shape dummy. Assign separately to the gfc and cfi
	descriptors since the atribute can be different. Add btanch to
	correctly handle missing optional dummies.

2019-10-04  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran.91959
	* fortran/decl.c (variable_decl): Re-arrange code for matching %FILL.

2019-10-04  Tobias Burnus  <tobias@codesourcery.com>

	* error.c (error_print, gfc_format_decoder): Fix off-by one issue
	with %C.

2019-10-03  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91497
	* simplify.c (gfc_simplify_dble, simplify_intconv, gfc_simplify_real,
	gfc_simplify_sngl): Disable -Wconversion and -Wconversion-extra
	warnings for explicit conversion of literal constants.

2019-10-03  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* primary.c (match_real_constant): Remove shadowing local vars.
	Rename local vars.  Fix undefined behavior in loop termination.
	(gfc_convert_to_structure_constructor): Rename local var.

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

	PR fortran/84487
	* trans-decl.c (gfc_get_symbol_decl): For __def_init, set
	DECL_ARTIFICAL and do not set TREE_READONLY.

2019-10-03  Mark Eggleston  <mark.eggleston@codethink.com>

	* array.c (check_element_type): Call gfc_typename with the gfc_expr
	"expr" instead of its gfc_typespec "ts".
	* check.c (gfc_check_co_reduce): Call gfc_typename with the gfc_expr
	"a" instead of its gfc_typespec "ts".
	(gfc_check_co_reduce): Call gfc_typename with the gfc_expr "a" instead
	 of its gfc_typespec "ts".
	(gfc_check_eoshift): Call gfc_typename with the gfc_expr "array"
	instead of its gfc_typespec ts.
	(gfc_check_same_type_as): In two calls to gfc_typename use "a" and "b"
	of type gfc_expr instead of the "ts" fields of "a" and "b"
	* decl.c (variable_decl): Call gfc_typename with the gfc_expr
	"initializer" instead of its gfc_typespec "ts".
	* expr.c (gfc_check_assign): Use "rvalue" and "lvalue" of type gfc_expr
	in calls to gfc_typename instead of their "ts" fields of type
	gfc_typespec.
	(gfc_check_pointer_assign): Use "rvalue" and "lvalue" of type gfc_expr
	in calls to gfc_typename instead of their "ts" fields of type
	gfc_typespec.
	* gfortran.h: Add prototypes for gfc_dummy_typename and a new function
	gfc_typename for gfc_expr *.
	*interface.c (gfc_check_dummy_characteristics): Use gfc_dummy_typename
	for the dummy variable.
	(compare_parameter): Use gfc_dummy_typename for the formal argument.
	Use "actual" of type gfc_expr in call to gfc_typename for the actual
	argument.
	* intrinsic.c (check_arglist): Use gfc_dummy_typename for the formal
	argument. Use expressions of type gfc_expr from the argument list to
	call gfc_typename.
	(gfc_convert_type_warn): New local variable "is_char_constant" set if
	the expression type is a character constant. At the "bad" label
	determine source type name by calling gfc_typename with either "expr"
	for character constants or "from_ts" and use that in the warning
	messages instead of the original call to gfc_typename.
	* misc.c (gfc_typename): New function for gfc_expr *, use for where
	character types are possible it can get the character length from
	gfc_expr for character literals.
	(gfc_dummy_typename): New functionfor gfc_typespec *, if no character
	length is present the character type is assumed and the appropriate
	string is return otherwise it calls gfc_typename for gfc_typespec *.
	(gfc_typespec): for character types construct the type name with length
	and kind (if it is not default kind).

2019-10-02  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91784
	* simplify.c (gfc_convert_constant): Simplify expression if the
	expression type is EXPR_OP.

2019-10-02  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91785
	* primary.c (gfc_match_varspec): Ensure an inquiry parameter has
	it locus set.

2019-10-02  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91942
	* io.c (match_vtag): Check for non-NULL result->symtree.
	(match_out_tag): Check for invalid constant due to inquiry parameter.
	(match_filepos): Instead of a syntax error, go to cleanup to get better
	error messages.

2019-10-02  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91943
	* match.c (gfc_match_call): BOZ cannot be an actual argument in
	a subroutine reference.
	* resolve.c (resolve_function): BOZ cannot be an actual argument in
	a function reference.

2019-10-01  Jan Hubicka  <jh@suse.cz>

	* module.c (load_commons): Initialize flags to 0 to silence
	-Wmaybe-uninitialized warning.
	(read_module): Likewise for n and comp_name.

2019-10-02  Tobias Burnus  <tobias@codesourcery.com>

	* dump-parse-tree.c (show_omp_clauses): Handle OMP_LIST_USE_DEVICE_ADDR.
	* gfortran.h (enum): Add OMP_LIST_USE_DEVICE_ADDR.
	* openmp.c (omp_mask1): Likewise.
	(gfc_match_omp_clauses): Match 'use_device_addr'.
	(OMP_TARGET_DATA_CLAUSES): Add OMP_LIST_USE_DEVICE_ADDR.
	(resolve_omp_clauses): Add it; add is_device_ptr checks.

2019-10-02  Tobias Burnus  <tobias@codesourcery.com>

	* openmp.c (gfc_match_omp_clauses): Show a clause-parsing
	error if none was rised before.
	* parse.c (matcha, matcho): If error occurred after
	OpenMP/OpenACC directive matched, do not try other directives.

2019-10-02  Tobias Burnus  <tobias@codesourcery.com>

	* trans-openmp.c (gfc_omp_is_optional_argument): Fix coding
	style.

2019-10-02  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* f95-lang.c (LANG_HOOKS_OMP_IS_OPTIONAL_ARGUMENT): Define to
	gfc_omp_is_optional_argument.
	* trans-decl.c (create_function_arglist): Set
	GFC_DECL_OPTIONAL_ARGUMENT in the generated decl if the parameter is
	optional.
	* trans-openmp.c (gfc_omp_is_optional_argument): New.
	(gfc_omp_privatize_by_reference): Return true if the decl is an
	optional pass-by-reference argument.
	* trans.h (gfc_omp_is_optional_argument): New declaration.
	(lang_decl): Add new optional_arg field.
	(GFC_DECL_OPTIONAL_ARGUMENT): New macro.

2019-10-01  David Malcolm  <dmalcolm@redhat.com>

	* error.c (gfc_diagnostic_starter): Clear the prefix before
	calling diagnostic_show_locus.

2019-09-29  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91641
	* check.c (gfc_check_is_contiguous): null() cannot be an actual
	argument to is_contiguous().

2019-09-29  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91714
	* decl.c (gfc_match_decl_type_spec):  Issue errors for a few
	mangled types.

2019-09-29  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/91726
	* resolve.c (gfc_expr_to_initialize): Bail out with a copy of
	the original expression if the array ref is a scalar and the
	array_spec has corank.
	* trans-array.c (gfc_conv_array_ref): Such expressions are OK
	even if the array ref codimen is zero.
	* trans-expr.c (gfc_get_class_from_expr): New function taken
	from gfc_get_vptr_from_expr.
	(gfc_get_vptr_from_expr): Call new function.
	* trans-stmt.c (trans_associate_var): If one of these is a
	target expression, extract the class expression from the target
	and copy its fields to a new target variable.
	* trans.h : Add prototype for gfc_get_class_from_expr.

2019-09-28  Jerry DeLisle  <jvdelisle@gcc.ngu.org>

	PR fortran/91802
	* decl.c (attr_decl1): Return MATCH_ERROR without free to avoid
	bad expression type in free_expr0() ICE in rank+corank check.

2019-09-28  Steven G. Kargl  <kargl@gcc.ngu.org>

	PR fortran/91802
	* decl.c (attr_decl1): Check if rank+corank > 15.

2019-09-28  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91864
	* gcc/fortran/io.c (match_io_element): An inquiry parameter cannot be
	read into.
	* gcc/fortran/match.c (gfc_match_allocate): An inquiry parameter
	can be neither an allocate-object nor stat variable.
	(gfc_match_deallocate): An inquiry parameter cannot be deallocated.

2019-09-26  Alessandro Fanfarillo  <afanfa@gcc.gnu.org>

	* trans-array.c (structure_alloc_comps):
	Add new enum item for BCAST_ALLOC_COMP.
	New argument for structure_alloc_comp, and new case to handle
	recursive components in derived types.
	* trans-array.c (gfc_bcast_alloc_comp): New function
	used to handleco_broadcast for allocatable components
	of derived types.
	* trans-array.h: Add gfc_bcast_alloc_comp
	* trans-intrinsics.c (conv_co_collective): Add check for
	derived type variable and invocation of co_bcast_alloc_comp.
	* trans.h: New data structure gfc_co_subroutines_args.

2019-09-25  David Malcolm  <dmalcolm@redhat.com>

	PR fortran/91426
	* error.c (curr_diagnostic): New static variable.
	(gfc_report_diagnostic): New static function.
	(gfc_warning): Replace call to diagnostic_report_diagnostic with
	call to gfc_report_diagnostic.
	(gfc_format_decoder): Colorize the text of %L and %C to match the
	colorization used by diagnostic_show_locus.
	(gfc_warning_now_at): Replace call to diagnostic_report_diagnostic with
	call to gfc_report_diagnostic.
	(gfc_warning_now): Likewise.
	(gfc_warning_internal): Likewise.
	(gfc_error_now): Likewise.
	(gfc_fatal_error): Likewise.
	(gfc_error_opt): Likewise.
	(gfc_internal_error): Likewise.

2019-09-23  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/91729
	* match.c (gfc_match_select_rank): Initialise 'as' to NULL.
	Check for a symtree in the selector expression before trying to
	assign a value to 'as'. Revert to gfc_error and go to cleanup
	after setting a MATCH_ERROR.

2019-09-20  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/78260
	* openmp.c (gfc_resolve_oacc_declare): Reject all
	non variables but accept function result variables.
	* trans-openmp.c (gfc_trans_omp_clauses): Handle
	function-result variables for remaing cases.

2019-09-17  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/91588
	* expr.c (check_inquiry): Remove extended component refs by
	using symbol pointers. If a function argument is an associate
	variable with a constant target, copy the target expression in
	place of the argument expression. Check that the charlen is not
	NULL before using the string length.
	(gfc_check_assign): Remove extraneous space.

2019-09-15  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91727
	* resolve.c (conformable_arrays):  If array-spec is NULL, then
	allocate-object is a scalar.  a conformability check only occurs
	for an array source-expr.

2019-09-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/91550
	* frontend-passes.c (do_subscript): If step equals
	zero, a previuos error has been reported; do nothing
	in this case.
	* resolve.c (gfc_resolve_iterator): Move error checking
	after type conversion.

2019-09-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/91557
	PR fortran/91556
	* frontend-passes.c (check_externals_procedure): Reformat argument
	list. Use gfc_compare_actual_formal instead of gfc_procedure_use.
	* gfortran.h (gfc_symbol): Add flag error.
	* interface.c (gfc_compare_interfaces): Reformat.
	(argument_rank_mismatch): Add where_formal argument. If it is
	present, note that the error is between different calls.
	(compare_parameter): Change warnings that previously dependended
	on -Wargument-mismatch to unconditional.  Issue an error / warning
	on type mismatch only once.  Pass where_formal to
	argument_rank_mismatch for artificial variables.
	(compare_actual_formal): Change warnings that previously
	dependeded on -Wargument-mismatch to unconditional.
	(gfc_check_typebound_override): Likewise.
	(gfc_get_formal_from_actual_arglist): Set declared_at for
	artificial symbol.
	* invoke.texi: Extend description of -fallow-argument-mismatch.
	Delete -Wargument-mismatch.
	* lang.opt: Change -Wargument-mismatch to do-nothing option.
	* resolve.c (resolve_structure_cons): Change warnings that
	previously depended on -Wargument-mismatch to unconditional.
	* trans-decl.c (generate_local_decl): Do not warn if the symbol is
	artificial.

2019-09-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91566
	* simplify.c (gfc_simplify_merge): Need to simplify expression
	after insertation of parenthesis.

2019-09-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	PR fortran/91716
	* trans-array.c (gfc_conv_array_initializer): Always assign the
	array type of the field to the string constant.

2019-09-13  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/91717
	* dependency.c (gfc_dep_resolver): Flag identical components
	and exit with return value 1 if set and no array refs.

2019-09-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91553
	* simplify.c (gfc_convert_constant):  During conversion check if the
	constant is enclosed in parenthesis, and simplify expression.

2019-09-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91642
	* io.c (gfc_match_inquire): null() cannot be in an iolength inquire
	list.

2019-09-05  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/91496
	* parse.c (parse_executable): Improve error messages for
	improperly placed pragmas not preceeding a loop.

2019-09-05  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91660
	* decl.c (gfc_match_decl_type_spec): Improve and restore error
	message for malformed types-spec.

2019-09-04  Steven G. Kargl  <kargl@gcvc.gnu.org>

	PR fortran/91650
	* io.c (match_io_element):  An output IO list item cannot be a BOZ.

2019-09-03  Steven G. Kargl  <kargl@gcc.gnu.org>

	* gfortran.texi: Update documentation to catch up with BOZ changes.
	* invoke.texi: Fix English from previous BOZ changes commit.

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

	PR fortran/91589
	* primary.c (gfc_match_varspec): Return MATCH_NO on an apparent
	component ref, when the primary type is intrinsic.

2019-09-02  Steven G. Kargl  <kargl@gc.gnu.org>

	PR fortran/91552
	* array.c (walk_array_constructor): New function.
	(gfc_match_array_constructor): Use it.

2019-09-01  Paul Thomas  <pault@gcc.gnu.org>

	* array.c (spec_dimen_size): Check for the presence of
	expressions for the bounds.
	* decl.c (gfc_match_end): Add case COMP_SELECT_RANK.
	* dump-parse-tree.c(show_symbol): Show the arrayspec of class
	entities.
	(show_code_node): Show the code for SELECT_RANK.
	* expr.c (gfc_check_vardef_context): Omit the context of
	variable definition for select rank associate names since the
	ASSUMED RANK throws.
	* gfortran.h : Add ST_SELECT_RANK and ST_RANK to enum
	gfc_statement. Add select_rank_temporary to symbol attribute
	structure. Add EXEC_SELECT_RANK to enum gfc_exec_op.
	* match.c (match_exit_cycle): Add COMP_SELECT_RANK.
	(copy_ts_from_selector_to_associate): Add as special case for
	assumed rank class variables.
	(select_intrinsic_set_tmp): Clean up the code by using symbols
	for references to the temporary and the selector.
	(select_type_set_tmp): Ditto.
	(select_rank_set_tmp): New function.
	(gfc_match_select_rank): New function.
	(gfc_match_rank_is): New function.
	* match.h : Add prototypes for gfc_match_select_rank and
	gfc_match_rank_is.
	* parse.c (decode_statement): Attempt to match select_rank and
	rank statements.
	(next_statement, gfc_ascii_statement): Add ST_SELECT_RANK.
	(parse_select_rank_block): New function.
	(parse_executable): Parse select rank block for ST_SELECT_RANK.
	* parse.h : Add COMP_SELECT_RANK to enum gfc_compile_state.
	* resolve.c (resolve_variable): Exclude select_rank_temporaries
	from the check on use of ASSUMED RANK.
	(gfc_resolve_expr): Make sure that unlimited polymorphic select
	rank temporaries expressions are not resolved again after being
	successfully resolved.
	(resolve_assoc_var): Do not do the rank check for select rank
	temporaries.
	(resolve_select_rank): New function.
	(gfc_resolve_blocks): Deal with case EXEC_SELECT_RANK.
	(resolve_symbol): Exclude select rank temporaries for check on
	use of ASSUMED RANK.
	* st.c (gfc_free_statement): Include EXEC_SELECT_RANK.
	* trans-array.c (gfc_conv_array_ref): Select rank temporaries
	may have dimen == 0.
	(gfc_conv_expr_descriptor): Zero the offset of select rank
	temporaries.
	* trans-stmt.c (copy_descriptor): New function.
	(trans_associate_var): Add code to associate select rank temps.
	(gfc_trans_select_rank_cases): New function.
	(gfc_trans_select_rank): New function.
	* trans-stmt.h : Add prototype for gfc_trans_select_rank.
	trans.c (trans_code): Add select rank case.

2019-08-30  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91587
	* io.c (match_filepos): MATCH_ERROR should branch to a syntax error.

2019-08-28  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91551
	* intrinsic.c (sort_actual): ALLOCATED has one argument. Check for
	no argument case.

2019-08-28  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91565
	* simplify.c (gfc_simplify_reshape): Add additional checks of the
	ORDER dummy argument.

2019-08-28  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91564
	* check.c (gfc_check_kill_sub): Additional checks on status dummy
	argument.

2019-08-28  Mark Eggleston  <mark.eggleston@codethink.com>

	* intrinsics.text: Corrected stated standard for intrinsics
	and specific intrinsics where necessary.  Also in C_SIZEOF the
	printed value is T not .TRUE.. In IPARITY example wrap BOZ
	constants in calls to INT.

2019-08-27  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/91496
	* gfortran.h: Extend struct gfc_iterator for loop annotations.
	* array.c (gfc_copy_iterator): Copy loop annotations by IVDEP,
	VECTOR, and NOVECTOR pragmas.
	* decl.c (gfc_match_gcc_ivdep, gfc_match_gcc_vector)
	(gfc_match_gcc_novector): New matcher functions handling IVDEP,
	VECTOR, and NOVECTOR pragmas.
	* match.h: Declare prototypes of matcher functions handling IVDEP,
	VECTOR, and NOVECTOR pragmas.
	* parse.c (decode_gcc_attribute, parse_do_block)
	(parse_executable): Decode IVDEP, VECTOR, and NOVECTOR pragmas;
	emit warning for unrecognized pragmas instead of error.
	* trans-stmt.c (gfc_trans_simple_do, gfc_trans_do): Add code to
	emit annotations for IVDEP, VECTOR, and NOVECTOR pragmas.
	* gfortran.texi: Document IVDEP, VECTOR, and NOVECTOR pragmas.

2019-08-27  Mark Eggleston  <mark.eggleston@codethink.com>

	* invoke.texi: Ensure that the option lists fit within the
	margins of a PDF page.  Re-worded description of
	'-ffrontend-loop-interchange' so that it fits with the margins
	of a PDF page.  Add '-fdec-include', '-fdec-blank-format-item'
	and '-fdec-format-defaults' to list of options that are enabled
	by '-fdec'.

2019-08-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/91390
	PR fortran/91473
	* frontend-passes.c (gfc_check_externals): Make
	gfc_errors_to_warnings conditional on -fallow-argument-mismatch.
	* invoke.texi: Document -fallow-argument-mismatch.
	* lang.opt: Add -fallow-argument-mismatch.

2019-08-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/91390
	PR fortran/91519
	* frontend-passes.c (check_externals_procedure): New
	function. If a procedure is not in the translation unit, create
	an "interface" for it, including its formal arguments.
	(check_externals_code): Use check_externals_procedure for common
	code with check_externals_expr.
	(check_externals_expr): Vice versa.
	* gfortran.h (gfc_get_formal_from_actual-arglist): New prototype.
	(gfc_compare_actual_formal): New prototype.
	* interface.c (compare_actual_formal): Rename to
	(gfc_compare_actual_formal): New function, make global.
	(gfc_get_formal_from_actual_arglist): Make global, and move here from
	* trans-types.c (get_formal_from_actual_arglist): Remove here.
	(gfc_get_function_type): Use gfc_get_formal_from_actual_arglist.

2019-08-23  Mark Eggleston  <mark.eggleston@codethink.com>

	* intrinsics.text: References in 'See also:' are now on
	separate lines to ensure that they always fit in the margins of
	a PDF page.  The column widths of tables have been adjusted
	where necessary to prevent overlapping text.  All program
	examples now fit within the margins of a PDF page.

2019-08-23  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/91283
	* options.c (gfc_post_options): Set flag_excess_precision instead of
	flag_excess_precision_cmdline.  Remove comment.

2019-08-23  Mark Eggleston  <mark.eggleston@codethink.com>

	* intrinsics.text: Removed empty sections. The order of
	sections for each intrinsic is now consistent throughout.
	Stray words removed. Text in the wrong section moved.
	Missing standard statement inserted.

2019-08-23  Mark Eggleston  <mark.eggleston@codethink.com>

	* intrinsics.text: Correct the return types for ZABS and CDABS.

2019-08-22  Steven G. Kargl  <kargl@gcc.gnu.org>

	* intrinsic.c (add_subroutines): ERRMSG is INTENT(INOUT) in
	co_broadcast, co_max, co_min, co_reduce, and  co_sum.

2019-08-20  Mark Eggleston  <mark.eggleston@codethink.com>

	PR fortran/89236
	* intrinsic.texi: Add GNU extension notes to DIM, MOD, MODULO.

2019-08-19  Mark Eggleston  <mark.eggleston@codethink.com>

	* gfortran.texi: Delete paragraph about integer overload errors
	when initialising integer variables with BOZ constants as these
	no longer occur.

2019-08-18  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91485
	module.c (gfc_match_use): User defined operator cannot conflict with
	a rename symbol.

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/82992
	* module.c (gfc_match_use):  When renaming a module entity, search
	current namespace for conflicting symbol.

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/78739
	* match.c (gfc_match_st_function):  When matching a statement function,
	need to check if the statement function name shadows the function
	name.

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/78719
	* decl.c (get_proc_name): Check for a CLASS entity when trying to
	add attributes to an entity that already has an explicit interface.

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91471
	* primary.c (gfc_variable_attr): Remove a gfc_internal_error(),
	which cannot be reached by conforming Fortran code, but seems to
	be reachable from nonconforming Fortran code.  Treat the AR_UNKNOWN
	case as a no-op.

2019-08-17  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/68401
	* trans-decl.c (gfc_build_builtin_function_decls): Replace
	os_error with os_error_at decl.
	* trans.c (trans_runtime_error_vararg): Modify so the error
	function decl is passed directly.
	(gfc_trans_runtime_error): Pass correct error function decl.
	(gfc_trans_runtime_check): Likewise.
	(trans_os_error_at): New function.
	(gfc_call_malloc): Use trans_os_error_at.
	(gfc_allocate_using_malloc): Likewise.
	(gfc_call_realloc): Likewise.
	* trans.h (gfor_fndecl_os_error): Replace with gfor_fndecl_os_error_at.

2019-08-16  Jeff Law <law@redhat.com>
	    Mark Eggleston <mark.eggleston@codethink.com>

	* gfortran.h: Add gfc_check_conflict declaration.
	* symbol.c (check_conflict): Rename cfg_check_conflict and remove
	static.
	* symbol.c (cfg_check_conflict): Remove automatic in equivalence
	conflict check.
	* symbol.c (save_symbol): Add check for in equivalence to stop the
	the save attribute being added.
	* trans-common.c (build_equiv_decl): Add is_auto parameter and
	add !is_auto to condition where TREE_STATIC (decl) is set.
	* trans-common.c (build_equiv_decl): Add local variable is_auto,
	set it true if an atomatic attribute is encountered in the variable
	list.  Call build_equiv_decl with is_auto as an additional parameter.
	flag_dec_format_defaults is enabled.
	* trans-common.c (accumulate_equivalence_attributes) : New subroutine.
	* trans-common.c (find_equivalence) : New local variable dummy_symbol,
	accumulated equivalence attributes from each symbol then check for
	conflicts.

2019-08-16  Richard Biener  <rguenther@suse.de>

	* trans-intrinsic.c (gfc_conv_intrinsic_findloc): Initialize
	forward_branch to avoid bogus uninitialized warning.

2019-08-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/91443
	* frontend-passes.c (check_externals_expr): New function.
	(check_externals_code): New function.
	(gfc_check_externals): New function.
	* gfortran.h (debug): Add prototypes for gfc_symbol * and
	gfc_expr *.
	(gfc_check_externals): Add prototype.
	* interface.c (compare_actual_formal): Do not complain about
	alternate returns if the formal argument is optional.
	(gfc_procedure_use): Handle cases when an error has been issued
	previously.  Break long line.
	* parse.c (gfc_parse_file): Call gfc_check_externals for all
	external procedures.
	* resolve.c (resolve_global_procedure): Remove checking of
	argument list.

2019-08-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/87991
	* resolve.c (check_data_variable): data-stmt-object with pointer
	attribute requires a data-stmt-value with the target attribute.

2019-08-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88072
	* misc.c (gfc_typename): Do not point to something that ought not to
	be pointed at.

2013-08-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/90563
	* frontend-passes.c (insert_index): Suppress errors while
	simplifying the resulting expression.

2019-08-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/89647
	resolve.c (resolve_typebound_procedure): Allow host associated
	procedure to be a binding target.  While here, wrap long line.

2019-08-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/87993
	* expr.c (gfc_simplify_expr): Simplifcation of an array with a kind
	type inquiry suffix yields a constant expression.

2019-08-13  Janne Blomqvist  <jb@gcc.gnu.org>

        PR fortran/91414
        * check.c (gfc_check_random_seed): Reduce seed_size.
        * intrinsic.texi (RANDOM_NUMBER): Update to match new PRNG.

2019-08-12  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/91424
	* frontend-passes.c (do_subscript): Do not warn for an
	expression a second time.  Do not warn about a zero-trip loop.
	(doloop_warn): Also look at contained namespaces.

2019-08-11  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/91413
	* invoke.texi (-fmax-stack-var-size): Document increased default.
	* options.c (gfc_post_options): Increase default stack var size to
	65536 bytes.
	* trans-decl.c (gfc_finish_var_decl): Generate warning when local
	array moved to static storage.

2019-08-10  Steven G. Kargl  <kargl@gcc.gnu.org>

	* decl.c (match_old_style_init): Use a clearer error message.
	* expr.c (gfc_check_assign): Update BOZ checking to provide a stricter
	adherence to the Fortran standard.  Use gfc_invalid_boz () to
	relax errors into warnings.
	* gfortran.h (gfc_isym_id): Add new ids GFC_ISYM_DFLOAT,
	GFC_ISYM_FLOAT, GFC_ISYM_REALPART, and GFC_ISYM_SNGL
	* intrinsic.c (add_functions): Use new ids to split REAL generic into
	REAL, FLOAT, DFLOAT, SNGL, and REALPART generics.
	(gfc_intrinsic_func_interface): Allow new intrinsics in an
	initialization expression
	* resolve.c (resolve_operator): Deal with BOZ as operands.
        Use gfc_invalid_boz to allow for errors or warnings via the
	-fallow-invalid-boz option.  A BOZ cannot be an operand to an
	unary operator.  Both operands of a binary operator cannot be BOZ.
        For binary operators, convert a BOZ operand into the type and
	kind of the other operand for REAL or INTEGER operand.
	* trans-intrinsic.c: Use new ids to cause conversions to happen.

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.

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