path: root/gcc/fortran/ChangeLog

2020-09-01  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95398
	* resolve.c (resolve_select_type): Add check for BT_CLASS
	type before using the CLASS_DATA macro which will have a
	NULL pointer to derive components if it isn't BT_CLASS.

2020-08-30  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

	PR fortran/96728
	* module.c (module_peek_char): Peek ahead function.
	(parse_integer): Add code for parsing signed integers.
	(parse_atom): Add code to handle signed integers.
	(peek_atom): Add code to handle signed integers.

2020-08-30  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

	PR fortran/96727
	* expr.c (gfc_check_init_expr): Add default error message for the AS_ASSUMED_RANK case.

2020-08-30  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

	PR fortran/96726
	* expr.c (check_references): Change different relational operator
	to less-than operator to avoid infinite loop.

2020-08-30  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

	PR fortran/95352
	* simplify.c (simplify_bound_dim): Add check for NULL pointer
	before trying to access structure member.

2020-08-30  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

	PR fortran/94110
	* interface.c (gfc_compare_actual_formal): Add code to also raise
	the actual argument cannot be an assumed-size array error when the
	dummy arguments are deferred-shape or assumed-rank pointer.

2020-08-28  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/94672
	* trans-array.c (gfc_trans_g77_array): Check against the parm decl and
	set the nonparm decl used for the is-present check to NULL if absent.

2020-08-28  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/96624
	* simplify.c (gfc_simplify_reshape): Detect zero shape and
	clear index if found.

2020-08-27  Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95882
	* decl.c (char_len_param_value): Check gfc_seen_div0 and
	if it is set return MATCH_ERROR.

2020-08-27  Martin Liska  <mliska@suse.cz>

	* trans-openmp.c (gfc_trans_omp_do): Set exact argument of a vector
	growth function to true.

2020-08-26  Tobias Burnus  <tobias@codesourcery.com>

	* gfortran.h (enum gfc_omp_device_type): New.
	(symbol_attribute, gfc_omp_clauses, gfc_common_head): Use it.
	* module.c (enum ab_attribute): Add AB_OMP_DEVICE_TYPE_HOST,
	AB_OMP_DEVICE_TYPE_NOHOST and AB_OMP_DEVICE_TYPE_ANY.
	(attr_bits, mio_symbol_attribute): Handle it.
	(load_commons, write_common_0): Handle omp_device_type flag.
	* openmp.c (enum omp_mask1): Add OMP_CLAUSE_DEVICE_TYPE
	(OMP_DECLARE_TARGET_CLAUSES): Likewise.
	(gfc_match_omp_clauses): Match 'device_type'.
	(gfc_match_omp_declare_target): Handle it.
	* trans-common.c (build_common_decl): Write device-type clause.
	* trans-decl.c (add_attributes_to_decl): Likewise.

2020-08-23  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/96737
	* trans-types.c (gfc_get_derived_type): Derived types that are
	used in submodules are not compatible with TYPE_CANONICAL from
	any of the global namespaces.

2020-08-20  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/96100
	PR fortran/96101
	* trans-array.c (get_array_charlen): Tidy up the evaluation of
	the string length for array constructors. Avoid trailing array
	references. Ensure string lengths of deferred length components
	are set. For parentheses operator apply string  length to both
	the primary expression and the enclosed expression.

2020-08-20  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/94958
	* trans-array.c (gfc_bcast_alloc_comp): Use the correct variable.

2020-08-20  Tobias Burnus  <tobias@codesourcery.com>

	* openmp.c (gfc_match_omp_clauses): Re-order 'if' clause pasing
	to avoid creating spurious symbols.

2020-08-18  Harald Anlauf  <anlauf@gmx.de>

	* check.c (check_rest): Reject MIN/MAX character arguments of
	different kind.
	* simplify.c (min_max_choose): The simplification result shall
	have the highest kind value of the arguments.
	* trans-intrinsic.c (gfc_conv_intrinsic_minmax): Choose type and
	kind of intermediate by looking at all arguments, not the result.

2020-08-17  Martin Liska  <mliska@suse.cz>

	* openmp.c (resolve_omp_clauses): Add static assert
	for OMP_LIST_NUM and size of clause_names array.
	Remove check that is always true.

2020-08-17  Martin Liska  <mliska@suse.cz>

	* openmp.c (resolve_omp_clauses): Add NONTEMPORAL to clause
	names.

2020-08-13  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/93671
	* trans-array.c (structure_alloc_comps): Keep caf-mode when applying to
	components; get the caf_token correctly for allocated scalar components.

2020-08-13  Matthew Krupcale  <mkrupcale@matthewkrupcale.com>

	PR fortran/96595
	* invoke.texi: Fix typos.

2020-08-12  Tobias Burnus  <tobias@codesourcery.com>

	* gfortran.h: Add OMP_LIST_NONTEMPORAL.
	* dump-parse-tree.c (show_omp_clauses): Dump it
	* openmp.c (enum omp_mask1): Add OMP_CLAUSE_NOTEMPORAL.
	(OMP_SIMD_CLAUSES): Add it.
	(gfc_match_omp_clauses): Match nontemporal clause.
	* trans-openmp.c (gfc_trans_omp_clauses): Process
	nontemporal clause.

2020-08-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/96556
	* frontend-passes.c (doloop_contained_function_call):
	Do not dereference a NULL pointer for value.function.esym.

2020-08-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/96312
	* trans-expr.c (fcncall_realloc_result): Only compare shapes if
	lhs was allocated..

2020-08-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/96102
	* resolve.c (check_host_association): Replace the gcc_assert
	with an error for internal procedures.

2020-08-05  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/96469
	* frontend-passes.c (doloop_contained_function_call): New
	function.
	(doloop_contained_procedure_code): New function.
	(CHECK_INQ): Macro for inquire checks.
	(doloop_code): Invoke doloop_contained_procedure_code and
	doloop_contained_function_call if appropriate.
	(do_intent): Likewise.

2020-08-04  Tobias Burnus  <tobias@codesourcery.com>

	* openmp.c (resolve_omp_do): Detect not perfectly
	nested loop with innermost collapse.

2020-08-04  Tobias Burnus  <tobias@codesourcery.com>

	* trans-openmp.c (gfc_trans_omp_do): Fix 'lastprivate(conditional:'.

2020-08-03  Julian Brown  <julian@codesourcery.com>
	    Thomas Schwinge  <thomas@codesourcery.com>

	* trans-openmp.c (gfc_trans_omp_clauses): Don't create present/release
	mappings for array descriptors.

2020-08-03  Martin Jambor  <mjambor@suse.cz>

	* f95-lang.c (gfc_init_builtin_functions): Remove processing of
	hsa-builtins.def.

2020-08-03  Tobias Burnus  <tobias@codesourcery.com>

	* gfc-internals.texi: Fix typos.
	* gfortran.texi: Likewise.
	* intrinsic.texi: Likewise.
	* invoke.texi: Likewise.

2020-08-02  Paul Thomas  <pault@gcc.gnu.org>

	PR target/96320
	* interface.c (gfc_check_dummy_characteristics): If a module
	procedure arrives with assumed shape in the interface and
	deferred shape in the procedure itself, update the latter and
	copy the lower bounds.

2020-08-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/96325
	* primary.c (gfc_match_varspec): In the case that a component
	reference is added to an intrinsic type component, emit the
	error message in this function.

2020-07-29  Tobias Burnus  <tobias@codesourcery.com>

	* dump-parse-tree.c (show_omp_clauses): Handle order(concurrent).
	* gfortran.h (struct gfc_omp_clauses): Add order_concurrent.
	* openmp.c (enum omp_mask1, OMP_DO_CLAUSES, OMP_SIMD_CLAUSES):
	Add OMP_CLAUSE_ORDER.
	* trans-openmp.c (gfc_trans_omp_clauses, gfc_split_omp_clauses):
	Handle order(concurrent) clause.

2020-07-29  Tobias Burnus  <tobias@codesourcery.com>

	* openmp.c (resolve_omp_clauses): Permit 'omp target data' without
	map if use_device_{addr,ptr} is present.

2020-07-29  Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/96319
	* intrinsic.c (gfc_convert_type_warn):  Add check for
	LOGICAL type so that warnings are not output.

2020-07-29  Tobias Burnus  <tobias@codesourcery.com>

	* module.c (mio_symbol_attribute): Fix indent of previous
	commit.

2020-07-29  Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/53298
	* trans-array.c (gfc_walk_array_ref): If ref->ss.end is set
	call gfc_get_scalar_ss.

2020-07-29  Tobias Burnus  <tobias@codesourcery.com>

	* gfortran.h (enum gfc_statement): Add ST_OMP_REQUIRES.
	(enum gfc_omp_requires_kind): New.
	(enum gfc_omp_atomic_op): Add GFC_OMP_ATOMIC_ACQ_REL.
	(struct gfc_namespace): Add omp_requires and omp_target_seen.
	(gfc_omp_requires_add_clause,
	(gfc_check_omp_requires): New.
	* match.h (gfc_match_omp_requires): New.
	* module.c (enum ab_attribute, attr_bits): Add omp requires clauses.
	(mio_symbol_attribute): Read/write them.
	* openmp.c (gfc_check_omp_requires, (gfc_omp_requires_add_clause,
	gfc_match_omp_requires): New.
	(gfc_match_omp_oacc_atomic): Use requires's default mem-order.
	* parse.c (decode_omp_directive): Match requires, set omp_target_seen.
	(gfc_ascii_statement): Handle ST_OMP_REQUIRES.
	* trans-openmp.c (gfc_trans_omp_atomic): Handle GFC_OMP_ATOMIC_ACQ_REL.

2020-07-27  Tobias Burnus  <tobias@codesourcery.com>

	* openmp.c (gfc_resolve_omp_directive): Remove NULL check
	for clauses in EXEC_OMP_CRITICAL as it no longer can be NULL.

2020-07-23  Tobias Burnus  <tobias@codesourcery.com>

	* gfortran.h (gfc_omp_namelist): Add lastprivate_conditional.
	* openmp.c (gfc_match_omp_clauses): Handle 'conditional:'
	modifier of 'lastprivate'.
	* trans-openmp.c (gfc_omp_clause_default_ctor): Don't assert
	on OMP_CLAUSE__CONDTEMP_ and other OMP_*TEMP_.
	(gfc_trans_omp_variable_list): Handle lastprivate_conditional.

2020-07-23  Tobias Burnus  <tobias@codesourcery.com>

	* intrinsic.texi (OMP_LIB_KINDS): Add omp_depend_kind.

2020-07-23  Tobias Burnus  <tobias@codesourcery.com>

	* gfortran.texi (Standards): Update URL; state that OpenMP 4.5
	is supported and 5.0 is partially.
	* intrinsic.texi (OpenMP Modules): Refer also to OpenMP 5.0;
	(OMP_LIB): Add missing derived type and new named constants.

2020-07-22  Tobias Burnus  <tobias@codesourcery.com>

	* gfortran.h (enum gfc_omp_if_kind): Add OMP_IF_CANCEL and OMP_IF_SIMD.
	* openmp.c (OMP_SIMD_CLAUSES): Add OMP_CLAUSE_IF.
	(gfc_match_omp_clauses, resolve_omp_clauses): Handle 'if (simd/cancel:'.
	* dump-parse-tree.c (show_omp_clauses): Likewise.
	* trans-openmp.c (gfc_trans_omp_clauses, gfc_trans_omp_cancel,
	(gfc_split_omp_clauses): Likewise.

2020-07-22  Tobias Burnus  <tobias@codesourcery.com>

	* openmp.c (gfc_match_omp_critical): Fix handling hints; permit
	hint clause without named critical.
	(resolve_omp_clauses): Require nonnegative constant integer
	for the hint clause.
	(gfc_resolve_omp_directive): Check for no name but
	nonzero value for hint clause.
	* parse.c (parse_omp_structured_block): Fix same-name check
	for critical.
	* trans-openmp.c (gfc_trans_omp_critical): Handle hint clause properly.

2020-07-21  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/89574
	* trans-decl.c (gfc_get_extern_function_decl): Check whether a
	symbol belongs to a different module.

2020-07-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/96220
	* dump-parse-tree.c (get_c_type_name): Always use the entries from
	c_interop_kinds_table to find the correct C type.

2020-07-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/96018
	* frontend-passes.c (gfc_check_externals): Adjust formatting.
	(implicit_pure_call): New function.
	(implicit_pure_expr): New function.
	(gfc_fix_implicit_pure): New function.
	* gfortran.h (gfc_fix_implicit_pure): New prototype.
	* parse.c (translate_all_program_units): Call gfc_fix_implicit_pure.

2020-07-18  David Edelsohn  <dje.gcc@gmail.com>

	* check.c (gfc_invalid_boz): Mark hint for translation using _().

2020-07-16  Julian Brown  <julian@codesourcery.com>
	    Thomas Schwinge  <thomas@codesourcery.com>

	* trans-openmp.c (gfc_trans_omp_clauses): Rework OpenACC
	attach/detach handling for arrays with descriptors.

2020-07-14  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95612
	* expr.c (gfc_check_pointer_assigb): Output an error if
	rvalue is a zero sized array or output an error if rvalue
	doesn't have a symbol tree.

2020-07-14  Tobias Burnus  <tobias@codesourcery.com>

	* openmp.c (gfc_match_omp_clauses): Match also derived-type
	component refs in OMP_CLAUSE_MAP.
	(resolve_omp_clauses): Resolve those.
	* trans-openmp.c (gfc_trans_omp_array_section, gfc_trans_omp_clauses):
	Handle OpenMP structure-element mapping.
	(gfc_trans_oacc_construct, gfc_trans_oacc_executable_directive,
	(gfc_trans_oacc_combined_directive, gfc_trans_oacc_declare): Update
	add openacc=true in gfc_trans_omp_clauses call.

2020-07-14  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/67311
	* trans-openmp.c (gfc_has_alloc_comps): Return false also for
	pointers to arrays.

2020-07-14  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/96038
	* decl.c (add_init_expr_sym):  For a symbol that is a
	parameter accept an initialisation if it does not have a
	value otherwise output a error and reject.

2020-07-13  Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/45337
	* resolve.c (resolve_fl_variable): Remove type and intent
	checks from the check for dummy.

2020-07-13  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95981
	* check.c (dim_rank_check): Allow NULL references in call to
	gfc_find_array_ref and return false if no reference is found.

2020-07-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/96073
	* frontend-passes.c (check_externals_procedure):  Add locus
	information for new_sym.
	* interface.c (gfc_check_dummy_characteristics): Do not warn
	about INTENT for artificially generated variables.

2020-07-10  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95980
	* class.c (gfc_add_component_ref, gfc_build_class_symbol):
	Add checks for NULL pointer dereference.
	* primary.c (gfc_variable_attr): Likewise.
	* resolve.c (resolve_variable, resolve_assoc_var)
	(resolve_fl_var_and_proc, resolve_fl_variable_derived)
	(resolve_symbol): Likewise.

2020-07-10  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/96086
	* match.c (gfc_match_select_rank): Catch NULL pointer
	dereference.
	* resolve.c (resolve_assoc_var): Catch NULL pointer dereference
	that may occur after an illegal declaration.

2020-07-09  Julian Brown  <julian@codesourcery.com>

	* trans-openmp.c (gfc_trans_omp_clauses): Use 'inner' not 'decl' for
	derived type members which themselves have derived types.

2020-07-08  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/96085
	* resolve.c (gfc_resolve_code): Check whether assign target is a
	parameter.

2020-07-06  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95980
	* match.c (copy_ts_from_selector_to_associate, build_class_sym):
	Distinguish between unlimited polymorphic and ordinary variables
	to avoid NULL pointer dereference.
	* resolve.c (resolve_select_type):
	Distinguish between unlimited polymorphic and ordinary variables
	to avoid NULL pointer dereference.

2020-07-06  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95709
	* resolve.c (gfc_resolve_code): Check for valid arguments to
	assigned GOTO.

2020-07-05  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/27318
	* frontend-passes.c (check_against_globals): New function.
	(gfc_check_externals): Split; also invoke check_against_globals
	via gfc_traverse_ns.
	(gfc_check_externals0): Recursive part formerly in
	gfc_check_externals.
	* resolve.c (resolve_global_procedure): Set sym->error on
	interface mismatch.
	* symbol.c (ambiguous_symbol): Check for, and set sym->error.

2020-07-02  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/93423
	* resolve.c (resolve_symbol): Avoid NULL pointer dereference.

2020-07-02  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/93337
	* class.c (gfc_find_derived_vtab): Punt if name is not set.

2020-07-02  Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/52279
	* check.c (gfc_invalid_boz):  Change array declaration for
	hint into a pointer.

2020-07-02  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95584
	* interface.c (generic_correspondence): Only use the pointer
	to a symbol if exists.

2020-07-01  David Edelsohn  <dje.gcc@gmail.com>

	* check.c (gfc_invalid_boz): Fix bootstrap. Revert
	Mark hint for translation using _().

2020-07-01  Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/52279
	* arith.c (reduce_binary_aa): Mark for translation the string
	parameter to gfc_check_conformance with G_().
	* check.c (gfc_invalid_boz): Mark hint for translation using
	_().  (gfc_check_achar): Mark for translation the message
	parameter to gfc_invalid_boz using G_().  (gfc_check_char):
	Mark for translation the message parameter to gfc_invalid_boz
	using G_().  (gfc_check_complex): Mark for translation the
	message parameter to gfc_invalid_boz using G_().
	(gfc_check_float): Mark for translation the message
	parameter to gfc_invalid_boz using G_().  (check_rest): Mark
	for translation the string parameter to gfc_check_conformance
	with _().  (gfc_check_minloc_maxloc): Mark for translation
	the string parameter to gfc_check_conformance with _().
	(gfc_check_findloc): Mark for translation the string parameter
	to gfc_check_conformance with _().  (check_reduction): Mark
	for translation the string parameter to gfc_check_conformance
	with _().  (gfc_check_pack): Mark for translation the string
	parameter to gfc_check_conformance with _().
	* decl.c (match_old_style_init): Mark for translation the
	message parameter to gfc_invalid_boz using G_().
	* expr.c (gfc_check_assign): Mark for translation the string
	parameter to gfc_check_conformance with _().
	* intrinsic.c (check_specific): Mark for translation the string
	parameter to gfc_check_conformance with _().
	(gfc_check_intrinsic_standard): Mark symstd_msg strings for
	translation using G_(). No need to mark symstd_msg for
	translation in call to gfc_warning or when setting symstd.
	* io.c (check_open_constraints):  Mark strings for translation
	using G_() in all calls to warn_or_error.  (match_io_element):
	Mark for translation the message parameter to gfc_invalid_boz
	using G_().
	* primary.c (match_boz_constant): Mark for translation the
	message parameter to gfc_invalid_boz using G_().
	* resolve.c (resolve_elemental_actual):  Mark for translation
	the string parameter to gfc_check_conformance with _().
	(resolve_operator):  Mark for translation the string parameter
	to gfc_check_conformance with _().  Mark translation strings
	assigned to msg using G_() for use in a call to cfg_warning.

2020-07-01  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95446
	* resolve.c (resolve_elemental_actual): Add code to check for
	non-optional argument of the same rank.  Revise warning message
	to refer to the Fortran 2018 standard.

2020-07-01  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95829
	* decl.c (gfc_match_decl_type_spec): Compare with "* ) " instead
	of "*)".

2020-06-30  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/88379
	* resolve.c (resolve_assoc_var): Avoid NULL pointer dereference.

2020-06-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/95355
	* gfortran.h (gfc_typename): Add optional argument for_hash.
	* misc.c (gfc_typename): When for_hash is true, just retur
	  CHARACTER(kind).
	* class.c (gfc_intrinsic_hash_value): Call gfc_typename with
	  for_hash = true.

2020-06-29  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95978
	* decl.c (gfc_match_data): Avoid NULL pointer dereference.

2020-06-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/95743
	* trans-decl.c (gfc_generate_function_code): Do not generate
	recursion check for compiler-generated procedures.

2020-06-29  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/71706
	* trans-stmt.c (gfc_trans_sync): Do proper kind conversion in
	bounds-checking code.

2020-06-28  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95340
	* match.c (gfc_match_select_rank): Do not dereference NULL pointer.

2020-06-28  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95880
	* symbol.c (gfc_add_type): If sym->ns->proc_name is set, use it,
	otherwise fall back to sym->name.

2020-06-27  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95881
	* resolve.c (resolve_symbol): Avoid NULL pointer dereference.

2020-06-25  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95828
	* match.c (select_rank_set_tmp): Enlarge internal buffer used in
	generating a mangled name.
	* resolve.c (resolve_select_rank): Likewise.

2020-06-25  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95826
	* decl.c (gfc_match_decl_type_spec): Replace a fixed size
	buffer by a pointer and reallocate if necessary.

2020-06-25  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/95837
	* resolve.c (gfc_resolve_substring_charlen): Remove
	bogus ts.kind setting for the expression.

2020-06-25  Tobias Burnus  <tobias@codesourcery.com>
	    Kwok Cheung Yeung  <kcy@codesourery.com>

	PR fortran/95869
	* trans-openmp.c (gfc_trans_omp_target): Use correct scoping block.

2020-06-25  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* trans-openmp.c (gfc_split_omp_clauses): Add if clause
	to target and simd sub-constructs.

2020-06-24  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95827
	* iresolve.c (gfc_get_string): Enlarge internal buffer used in
	generating the mangled name.

2020-06-23  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/95812
	* dependency.c (ref_same_as_full_array): Handle case of AR_FULL
	vs. AR_FULL.

2020-06-23  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95586
	* decl.c (gfc_match_implicit): Only perform else branch if
	the type spect is not BT_DERIVED.

2020-06-22  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95708
	* intrinsic.c (add_functions): Replace CLASS_INQUIRY with
	CLASS_TRANSFORMATIONAL for intrinsic num_images.
	(make_generic): Replace ACTUAL_NO with ACTUAL_YES for
	intrinsic team_number.
	* resolve.c (resolve_fl_procedure): Check pointer ts.u.derived
	exists before using it.

2020-06-22  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95585
	* check.c (gfc_check_reshape): Add check for a value when
	the symbol has an attribute flavor FL_PARAMETER.

2020-06-22  Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/42693
	* arith.c (gfc_arith_error): Enclose strings in G_() instead
	of _().

2020-06-20  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95707
	* gfortran.h (gfc_common_head): Enlarge buffer.
	* trans-common.c (gfc_sym_mangled_common_id): Enlarge temporary
	buffers, and add check on length on mangled name to prevent
	overflow.

2020-06-20  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95688
	* iresolve.c (gfc_get_string): Enlarge static buffer size.

2020-06-20  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95687
	* class.c (get_unique_type_string): Return a string with dynamic
	length.
	(get_unique_hashed_string, gfc_hash_value): Use dynamic result
	from get_unique_type_string instead of static buffer.

2020-06-20  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95689
	* interface.c (check_sym_interfaces): Enlarge temporary buffer,
	and add check on length on mangled name to prevent overflow.

2020-06-20  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95587
	* match.c (gfc_match_equivalence): Check constraints on
	EQUIVALENCE objects also for CLASS variables.

2020-06-18  Tobias Burnus  <tobias@codesourcery.com>

	* openmp.c (resolve_omp_clauses): Reject vars with
	allocatable components in OpenMP map clauses.

2020-06-16  Tobias Burnus  <tobias@codesourcery.com>

	* parse.c (decode_oacc_directive): Permit 'acc routine' also
	inside pure procedures.
	* openmp.c (gfc_match_oacc_routine): Inside pure procedures
	do not permit gang, worker or vector clauses.

2020-06-16  Tobias Burnus  <tobias@codesourcery.com>

	* parse.c (decode_omp_directive): Remove "or ELEMENTAL"
	from "in PURE" error message also for -fopenmp-simd.

2020-06-16  Tobias Burnus  <tobias@codesourcery.com>

	* parse.c (decode_omp_directive): Remove "or ELEMENTAL"
	from "in PURE" error message.

2020-06-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/42122
	* dump-parse-tree.c (gfc_dump_global_symbols):  If the symroot is
	empty, just output "empty".

2020-06-14  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95088
	* class.c (get_unique_type_string): Replace use of fixed size
	buffer by internally passing a pointer to strings.

2020-06-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* check.c (gfc_check_random_seed): Always use locations
	from get and put arguments for error messages.

2020-06-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/94109
	* class.c (finalize_component): Return early if finalization has
	already happened for expression and component within namespace.
	* gfortran.h (gfc_was_finalized): New type.
	(gfc_namespace): Add member was_finalzed.
	(gfc_expr): Remove finalized.
	* symbol.c (gfc_free_namespace): Free was_finalized.

2020-06-11  Harald Anlauf  <anlauf@gmx.de>
	    Steven G. Kargl   <kargl@gcc.gnu.org>

	PR fortran/95611
	* decl.c (access_attr_decl): Use correct symbol in error message.

2020-06-11  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95544
	* check.c (invalid_null_arg): Rename to gfc_invalid_null_arg.
	(gfc_check_associated, gfc_check_kind, gfc_check_merge)
	(gfc_check_shape, gfc_check_size, gfc_check_spread)
	(gfc_check_transfer): Adjust.
	(gfc_check_len_lentrim, gfc_check_trim): Check for NULL() argument.
	* gfortran.h: Declare gfc_invalid_null_arg ().
	* intrinsic.c (check_arglist): Check for NULL() argument.

2020-06-11  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95503
	* expr.c (gfc_check_pointer_assign): Skip contiguity check of rhs
	of pointer assignment if lhs cannot be simply contiguous.

2020-06-11  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

	PR fortran/95331
	* trans-array.c (gfc_conv_array_ref): For class array dummy
	arguments use the transformed descriptor in sym->backend_decl
	instead of the original descriptor.

2020-06-11  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

	PR fortran/52351
	PR fortran/85868
	* trans-array.c (gfc_conv_expr_descriptor): Enable the
	creation of a new descriptor with the correct one based
	indexing for array sections.  Rework array descriptor
	indexing offset calculation.

2020-06-11  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

	PR fortran/94022
	* trans-expr.c (gfc_conv_procedure_call): In the case of
	assumed-size arrays ensure that the reference is to a full array.

2020-06-07  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95091
	* class.c (gfc_hash_value): Add cast.

2020-06-07  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95091
	* class.c (get_unique_type_string, gfc_hash_value): Enlarge
	buffers, and check whether the strings returned by
	get_unique_type_string() fit.

2020-06-05  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95530
	PR fortran/95537
	* decl.c (gfc_match_decl_type_spec): Enlarge buffer, and enhance
	string copy to detect buffer overflow.
	* gfortran.h (gfc_common_head): Enlarge buffer.
	* trans-common.c (finish_equivalences): Enhance string copy to
	detect buffer overflow.

2020-06-05  Tom Tromey  <tromey@adacore.com>

	PR fortran/95509
	* misc.c (gfc_closest_fuzzy_match): Update cutoff value
	computation.

2020-06-04  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95500
	* trans-expr.c (gfc_conv_expr_reference): Do not dereference NULL
	pointer.

2020-06-03  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

	PR fortran/95214
	PR fortran/66833
	PR fortran/67938
	* trans-expr.c (gfc_maybe_dereference_var): Add assumed-rank to
	character dummy arguments list of possible attributes.

2020-06-03  Tobias Burnus  <tobias@codesourcery.com>

	* f95-lang.c (LANG_HOOKS_OMP_PREDETERMINED_MAPPING): Redefine.
	* trans-openmp.c (gfc_omp_predetermined_mapping): New.
	* trans.h (gfc_omp_predetermined_mapping): Declare.

2020-05-31  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/94361
	* class.c (finalize_component): Use expr->finalized instead of
	comp->finalized.
	* gfortran.h (gfc_component): Remove finalized member.
	(gfc_expr): Add it here instead.

2020-05-30  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95373
	* primary.c (is_inquiry_ref): Move validity check of inquiry
	references against selected Fortran standard from here...
	(gfc_match_varspec) ...to here.

2020-05-30  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95090
	* class.c (get_unique_type_string): Use buffer overrun check.

2020-05-29  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95090
	* class.c (get_unique_type_string): Enlarge temporary for
	name-mangling.  Use strncpy to prevent buffer overrun.
	(get_unique_hashed_string): Enlarge temporary.
	(gfc_hash_value): Enlarge temporary for name-mangling.

2020-05-28  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95373
	* primary.c (is_inquiry_ref): Check validity of inquiry
	references against selected Fortran standard.

2020-05-28  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/94397
	* match.c (gfc_match_type_spec): New variable ok initialised
	to true. Set ok with the return value of gfc_reduce_init_expr
	called only if the expression is not EXPR_CONSTANT and is not
	EXPR_VARIABLE. Add !ok to the check for type not being integer
	or the rank being greater than zero.

2020-05-27  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95090
	* iresolve.c (gfc_get_string): Enlarge temporary for
	name-mangling.

2020-05-27  Tobias Burnus  <tobias@codesourcery.com>
	    Mark Eggleston  <markeggleston@gnu.gcc.org>

	PR fortran/50392
	* trans-decl.c (gfc_get_symbol_decl): Remove unnecessary block
	delimiters.  Add auxiliary variables if a label is assigned to
	a return variable. (gfc_gat_fake_result): If the symbol has an
	assign attribute set declaration from the symbol's backend
	declaration.

2020-05-26  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95089
	* trans-types.c (gfc_get_derived_type): Enlarge temporary to hold
	mangled name "_caf_symbol".

2020-05-26  Alexandre Oliva  <oliva@adacore.com>

	* options.c (gfc_get_option_string): Drop auxbase, add
	dumpbase_ext.

2020-05-24  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95106
	* trans-common.c (gfc_sym_mangled_common_id): Enlarge temporaries
	for name-mangling.

2020-05-23  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR libfortran/95191
	* libgfortran.h (libgfortran_error_codes): Add
	LIBERROR_BAD_WAIT_ID.

2020-05-20  Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/39695
	* resolve.c (resolve_fl_procedure): Set name depending on
	whether the result attribute is set.  For PROCEDURE/RESULT
	conflict use the name in sym->ns->proc_name->name.
	* symbol.c (gfc_add_type): Add check for function and result
	attributes use sym->ns->proc_name->name if both are set.
	Where the symbol cannot have a type use the name in
	sym->ns->proc_name->name.

2020-05-18  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95053
	* arith.c (gfc_divide): Revert hunk introduced by patch for
	PR93499.
	* decl.c (variable_decl): Generate error for array shape not being
	an INTEGER constant.
	(gfc_get_pdt_instance): Generate error if KIND or LEN expressions
	in declaration of a PDT instance do not simplify to INTEGER
	constants.

2020-05-15  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/94690
	* openmp.c (resolve_omp_do): Permit more clauses for SIMD
	iteration variables.

2020-05-14  Jakub Jelinek  <jakub@redhat.com>

	* trans-openmp.c: Include function.h.
	(gfc_trans_omp_target): Set cfun->has_omp_target.

2020-05-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93497
	* decl.c (char_len_param_value): Check whether character
	length expression is of type EXPR_OP and if so simplify it.
	* resolve.c (resolve_charlen): Reject length if it has a
	rank.

2020-05-13  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/94690
	* openmp.c (OMP_DISTRIBUTE_CLAUSES): Add OMP_CLAUSE_LASTPRIVATE.
	(gfc_resolve_do_iterator): Skip the private handling for SIMD as
	that is handled by ME code.
	* trans-openmp.c (gfc_trans_omp_do): Don't add private/lastprivate
	for dovar_found == 0, unless !simple.

2020-05-11  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95053
	* arith.c (gfc_divide): Do not error out if operand 2 is
	non-numeric.  Defer checks to later stage.

2020-05-11  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/94672
	* trans.h (gfc_conv_expr_present): Add use_saved_decl=false argument.
	* trans-expr.c (gfc_conv_expr_present): Likewise; use DECL directly
	and only if use_saved_decl is true, use the actual PARAM_DECL arg (saved
	descriptor).
	* trans-array.c (gfc_trans_dummy_array_bias): Set local 'arg.0'
	variable to NULL if 'arg' is not present.
	* trans-openmp.c (gfc_omp_check_optional_argument): Simplify by checking
	'arg.0' instead of the true PARM_DECL.
	(gfc_omp_finish_clause): Remove setting 'arg.0' to NULL.

2020-05-11  Janus Weil  <janus@gcc.gnu.org>
	    Dominique d'Humieres  <dominiq@lps.ens.fr>

	PR fortran/59107
	* gfortran.h: Rename field resolved as resolve_symbol_called
	and assign two 2 bits instead of 1.
	* interface.c (check_dtio_interface1): Use new field name.
	(gfc_find_typebound_dtio_proc): Use new field name.
	* resolve.c (gfc_resolve_intrinsic): Replace check of the formal
	field with resolve_symbol_called is at least 2, if it is not
	set the field to 2.  (resolve_typebound_procedure): Use new field
	name.  (resolve_symbol): Use new field name and check whether it
	is at least 1, if it is not set the field to 1.

2020-05-10  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/93499
	* arith.c (gfc_divide): Catch division by zero.
	(eval_intrinsic_f3): Safeguard for NULL operands.

2020-05-05  Steve Kargl  <kargl@gcc.gnu.org>
	Harald Anlauf  <anlauf@gmx.de>

	PR fortran/93366
	* check.c (gfc_check_associated, invalid_null_arg): Factorize
	check for presence of invalid NULL() argument.
	(gfc_check_kind, gfc_check_merge, gfc_check_shape)
	(gfc_check_sizeof, gfc_check_spread, gfc_check_transfer): Use this
	check for presence of invalid NULL() arguments.

2020-04-29  Stefan Schulze Frielinghaus  <stefansf@linux.ibm.com>

	PR fortran/94769
	* io.c (check_io_constraints): Initialize local variable num to
	-1 and assert that it receives a meaningful value by function
	compare_to_allowed_values.

2020-04-27  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/93956
	PR fortran/94788
	* expr.c (gfc_check_pointer_assign): Revert patch for PR 93956.
	* interface.c: Likewise.

2020-04-25  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/94578
	* trans-expr.c (arrayfunc_assign_needs_temporary): If the
	LHS is a subref pointer, we also need a temporary.

2020-04-23  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/93956
	* expr.c (gfc_check_pointer_assign): Also set subref_array_pointer
	when a function returns a pointer.
	* interface.c (gfc_set_subref_array_pointer_arg): New function.
	(gfc_procedure_use): Call it.

2020-04-22  Fritz Reese  <foreese@gcc.gnu.org>

	* trigd_fe.inc: Use mpfr to compute cosd(30) rather than a host-
	precision floating point literal based on an invalid macro.

2020-04-22  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

	PR fortran/90350
	* simplify.c (simplify_bound): In the case of assumed-size arrays
	check if the reference is to a full array.

2020-04-22  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/94709
	* scanner.c (load_line): In fixed form, also treat 'C' as comment and
	'D'/'d' only with -fd-lines-as-comments. Treat '!$' with -fopenmp,
	'!$acc' with -fopenacc and '!GCC$' as non-comment to permit <tab>
	and truncation warnings.

2020-04-20  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* dump-parse-tree.c (show_attr): Add numerous flags, some cleanup.

2020-04-20  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/93364
	* array.c (gfc_set_array_spec): Check for sum of rank and corank
	not exceeding GFC_MAX_DIMENSIONS.

2020-04-20  Steve Kargl  <kargl@gcc.gnu.org>
	Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/91800
	* decl.c (variable_decl): Reject Hollerith constants as type
	initializer.

2020-04-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/93500
	* resolve.c (resolve_operator): If both operands are
	NULL, return false.
	* simplify.c (simplify_bound): If a division by zero
	was seen during bound simplification, free the
	corresponcing expression and return &gfc_bad_expr.

2020-04-17  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/94090
	* gfortran.dg (gfc_compare_interfaces): Add
	optional argument bad_result_characteristics.
	* interface.c (gfc_check_result_characteristics): Fix
	whitespace.
	(gfc_compare_interfaces): Handle new argument; return
	true if function return values are wrong.
	* resolve.c (resolve_global_procedure): Hard error if
	the return value of a function is wrong.

2020-04-15  Fritz Reese  <foreese@gcc.gnu.org>
	Linus Koenig <link@sig-st.de>

	PR fortran/94192
	* simplify.c (simplify_bound): Simplify condition for error check.

2020-04-14  Tobias Burnus  <tobias@codesourcery.com>

	* module.c (gfc_match_use): Fix name-conflict check for use-associating
	the same symbol again in a submodule.

2020-04-13  Linus Koenig <link@sig-st.de>

	PR fortran/94192
	* resolve.c (resolve_fl_var_and_proc): Set flag "error" to 1 if
	pointer is found to not have an assumed rank or a deferred shape.
	* simplify.c (simplify_bound): If an error has been issued for a
	given pointer, one should not attempt to find its bounds.

2020-04-09  Fritz Reese  <foreese@gcc.gnu.org>

	PR fortran/87923
	* gfortran.h (gfc_resolve_open, gfc_resolve_close): Add
	locus parameter.
	(gfc_resolve_dt): Add code parameter.
	* io.c (async_io_dt, check_char_variable, is_char_type): Removed.
	(resolve_tag_format): Add locus to error message regarding
	zero-sized array in FORMAT tag.
	(check_open_constraints, check_close_constraints): New functions
	called at resolution time.
	(gfc_match_open, gfc_match_close, match_io): Move checks which don't
	affect the match result to new functions check_open_constraints,
	check_close_constraints, check_io_constraints.
	(gfc_resolve_open, gfc_resolve_close): Call new functions
	check_open_constraints, check_close_constraints after all tags have
	been independently resolved.  Remove duplicate constraints which are
	already verified by resolve_tag.  Explicitly pass locus to all error
	reports.
	(compare_to_allowed_values): Add locus parameter and provide
	explicit locus all error reports.
	(match_open_element, match_close_element, match_file_element,
	match_dt_element, match_inquire_element): Remove redundant special
	cases for ASYNCHRONOUS and IOMSG tags.
	(gfc_resolve_dt): Remove redundant special case for format
	expression.  Call check_io_constraints, forwarding an I/O list as
	the io_code parameter if present.
	(check_io_constraints): Change return type to bool.  Pass explicit
	locus to error reports.  Move generic checks after tag-specific
	checks, since errors are no longer buffered.  Move simplification of
	format string to match_io.  Remove redundant checks which are
	verified by resolve_tag.  Remove usage of async_io_dt flag and
	explicitly mark symbols used in asynchronous I/O with the
	asynchronous attribute.
	* resolve.c (resolve_transfer, resolve_fl_namelist): Remove checks
	for async_io_dt flag.  This is now done in io.c.
	(check_io_constraints).
	(gfc_resolve_code): Pass code locus to gfc_resolve_open,
	gfc_resolve_close, gfc_resolve_dt.

2020-04-07  Fritz Reese  <foreese@gcc.gnu.org>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93871
	* gfortran.h (GFC_ISYM_ACOSD, GFC_ISYM_ASIND, GFC_ISYM_ATAN2D,
	GFC_ISYM_ATAND, GFC_ISYM_COSD, GFC_ISYM_COTAND, GFC_ISYM_SIND,
	GFC_ISYM_TAND): New.
	* intrinsic.c (add_functions): Remove check for flag_dec_math.
	Give degree trig functions simplification and name resolution
	functions (e.g, gfc_simplify_atrigd () and gfc_resolve_atrigd ()).
	(do_simplify): Remove special casing of degree trig functions.
	* intrinsic.h (gfc_simplify_acosd, gfc_simplify_asind,
	gfc_simplify_atand, gfc_simplify_cosd, gfc_simplify_cotand,
	gfc_simplify_sind, gfc_simplify_tand, gfc_resolve_trigd2): Add new
	prototypes.
	(gfc_simplify_atrigd, gfc_simplify_trigd, gfc_resolve_cotan,
	resolve_atrigd): Remove prototypes of deleted functions.
	* iresolve.c (is_trig_resolved, copy_replace_function_shallow,
	gfc_resolve_cotan, get_radians, get_degrees, resolve_trig_call,
	gfc_resolve_atrigd, gfc_resolve_atan2d): Delete functions.
	(gfc_resolve_trigd, gfc_resolve_trigd2): Resolve to library functions.
	* simplify.c (rad2deg, deg2rad, gfc_simplify_acosd, gfc_simplify_asind,
	gfc_simplify_atand, gfc_simplify_atan2d, gfc_simplify_cosd,
	gfc_simplify_sind, gfc_simplify_tand, gfc_simplify_cotand): New
	functions.
	(gfc_simplify_atan2): Fix error message.
	(simplify_trig_call, gfc_simplify_trigd, gfc_simplify_atrigd,
	radians_f): Delete functions.
	* trans-intrinsic.c: Add LIB_FUNCTION decls for sind, cosd, tand.
	(rad2deg, gfc_conv_intrinsic_atrigd, gfc_conv_intrinsic_cotan,
	gfc_conv_intrinsic_cotand, gfc_conv_intrinsic_atan2d): New functions.
	(gfc_conv_intrinsic_function): Handle ACOSD, ASIND, ATAND, COTAN,
	COTAND, ATAN2D.
	* trigd_fe.inc: New file. Included by simplify.c to implement
	simplify_sind, simplify_cosd, simplify_tand with code common to the
	libgfortran implementation.

2020-04-06  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93686
	* decl.c (gfc_match_data): Handle data matching for derived type
	pointers.

2020-04-02  Tobias Burnus  <tobias@codesourcery.com>

	* gfortran.h (gfc_resolve_formal_arglist): Add prototype.
	* interface.c (check_dtio_interface1): Call it.
	* resolve.c (gfc_resolve_formal_arglist): Renamed from
	resolve_formal_arglist, removed static.
	(find_arglists, resolve_types): Update calls.

2020-04-02  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93522
	* match.c (gfc_match_select_rank): Fix error cleanup.

2020-04-02  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93498
	* check.c (gfc_check_findloc):  If the kinds of the arguments
	differ goto label "incompat".

2020-04-02 Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/94030
	* resolve.c (resolve_equivalence): Correct formatting
	around the label "identical_types".  Instead of using
	gfc_resolve_array_spec use is_non_constants_shape_array
	to determine whether the array can be used in a in an
	equivalence statement.

2020-04-01  Mark Eggleston  <mark.eggleston@codethink.com>

	PR fortran/94386
	expr.c (simplify_parameter_variable): Restore code deleted
	in PR94246.

2020-03-28  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/94246
	* arith.c : Remove trailing white space.
	* expr.c (scalarize_intrinsic_call): Remove the error checking.
	Make a copy of the expression to be simplified and only replace
	the original if the simplification succeeds.

2020-03-28  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/94348
	* decl.c (gfc_match_submod_proc): Add result var to the
	proc's namespace.

2020-03-27  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93957
	* trans-array.c (gfc_alloc_allocatable_for_assignment): Accept
	nonallocatable, nonpointer deferred-rank arrays.

2020-03-27  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93363
	* resolve.c (resolve_assoc_var): Reject association to DT and
	function name.

2020-03-25  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93484
	* match.c (gfc_match_type_spec): Replace gfc_match_init_expr with
	gfc_match_expr. Return m if m is MATCH_NO or MATCH_ERROR.

2020-03-23  Mark Eggleston  <mark.eggleston@codethink.com>
	Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93600
	* expr.c (simplify_parameter_variable): Check whether the ref
	chain contains INQUIRY_LEN or INQUIRY_KIND and set inquiry
	boolean. When an empty array has been identified and a new
	new EXPR_ARRAY expression has been created only return that
	expression if inquiry is not set. This allows the new
	expression to drop through to be simplified into a
	EXPR_CONSTANT representing %kind or %len.
	* matc.c (gfc_match_assignment): If lvalue doesn't have a
	symtree free both lvalue and rvalue expressions and return
	an error.
	* resolv.c (gfc_resolve_ref): Ensure that code to handle
	INQUIRY_LEN is only performed for arrays with deferred types.

2020-03-18  Jakub Jelinek  <jakub@redhat.com>

	* class.c (generate_finalization_wrapper): Fix up duplicated word
	issue in a comment.
	* trans-types.c (gfc_get_nodesc_array_type): Likewise.

2020-03-17  Jakub Jelinek  <jakub@redhat.com>

	* array.c (gfc_check_iter_variable): Fix up duplicated word issue
	in a comment.
	* arith.c (gfc_arith_concat): Likewise.
	* resolve.c (gfc_resolve_ref): Likewise.
	* frontend-passes.c (matmul_lhs_realloc): Likewise.
	* module.c (gfc_match_submodule, load_needed): Likewise.
	* trans-expr.c (gfc_init_se): Likewise.

2020-03-15  Lewis Hyatt  <lhyatt@gmail.com>

	* lang.opt: Avoid redundancy in the help text.

2020-03-12  Tobias Burnus  <tobias@codesourcery.com>

	PR middle-end/94120
	* openmp.c (gfc_match_oacc_declare): Accept function-result
	variables; reject variables declared in a different scoping unit.

2020-03-08  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/93581
	* resolve.c (gfc_resolve_ref): Modify array refs to be elements
	if the ref chain ends in INQUIRY_LEN.
	* trans-array.c (gfc_get_dataptr_offset): Provide the offsets
	for INQUIRY_RE and INQUIRY_IM.

2020-03-05 Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93792
	* decl.c (variable_decl): If param and initializer check
	for BOZ, if found,  output an error, set m to MATCH_ERROR
	and goto cleanup.

2020-03-02  Andrew Benson  <abensonca@gmail.com>

	PR fortran/93486
	* module.c: Increase size of variables used to read module names
	when loading interfaces from module files to permit cases where
	the name is the concatenation of a module and submodule name.
	* gfortran.dg/pr93486.f90: New test.

2020-03-01  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/92976
	* match.c (select_type_set_tmp): If the selector array spec has
	explicit bounds, make the temporary's bounds deferred.

2020-03-01  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/92959
	* trans-intrinsic.c (gfc_conv_associated): Eliminate
	'nonzero_charlen' and move the chunk to evaluate zero character
	length until after the argument evaluation so that the string
	length can be used.

2020-02-28  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/92785
	* trans-expr.c (gfc_conv_intrinsic_to_class): Renormalise non-
	variable expressions to be unity lbound based.

2020-02-25  Steven G. Kargl  <kargl@gcc.gnu.org>

	* simplify.c (degrees_f): Remove unused code.

2020-02-25  Jakub Jelinek  <jakub@redhat.com>

	PR translation/93864
	* intrinsic.texi (CO_BROADCAST): Fix typo, paramter -> parameter.
	* trans-array.c (gfc_allocate_pdt_comp, gfc_deallocate_pdt_comp,
	gfc_check_pdt_dummy): Fix comment typo paramter -> parameter.

2020-02-24  Mark Eggleston  <mark.eggleston@codethink.com>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93835
	* decl.c (gfc_match_data) : Check whether the data expression
	is a derived type and is a constructor. If a BOZ constant
	is encountered in the constructor output an error and return
	MATCH_ERROR.

2020-02-24  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93604
	* decl.c (gfc_match_data) : Check whether the data expression
	is a derived type and is a constructor. If a BOZ constant
	is encountered in the constructor output an error and return
	MATCH_ERROR.

2020-02-24  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93552
	* match.c (match_exit_cycle): With OpenACC, check the kernels loop
	directive and tile clause as well.

2020-02-23  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/93889
	* interface.c (compare_parameter): Fix error message.

2020-02-23  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/93890
	* interface.c: Replace "can not" by "cannot" and remove trailing
	space.

2020-02-20  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93825
	* openmp.c (resolve_oacc_loop_blocks): Move call to
	resolve_oacc_nested_loops from here ...
	(resolve_oacc_loop): ... to here.

2020-02-18  Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/93714
	* expr.c (gfc_check_pointer_assign): Move check for
	matching character length to after checking the lvalue
	attributes for target or pointer.

2020-02-18  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93601
	* match.c (gfc_match_assignment) : Reject assignment if
	the lhs stype is BT_CLASS and the rhs type is BT_BOZ.

2020-02-18  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93603
	* match.c (gfc_match_associate) : If target expression
	has the type BT_BOZ output an error and goto
	assocListError.

2020-02-18  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/93580
	* primary.c (gfc_match_varspec): If the symbol following %
	is re or im and the primary expression type is not BT_COMPLEX
	issue an error. If the symbol is len and the primary
	expression type is not BT_CHARACTER is an error.

2020-02-10  Andrew Benson  <abensonca@gmail.com>

	PR fortran/83113
	* array.c: Do not attempt to set the array spec for a submodule
	function symbol (as it has already been set in the corresponding
	module procedure interface).
	* symbol.c: Do not reject duplicate POINTER, ALLOCATABLE, or
	DIMENSION attributes in declarations of a submodule function.
	* gfortran.h: Add a macro that tests for a module procedure in a
	submodule.
	* gfortran.dg/pr83113.f90: New test.

2020-02-03  Julian Brown  <julian@codesourcery.com>
	    Tobias Burnus  <tobias@codesourcery.com>

	* cpp.c (cpp_define_builtins): Update _OPENACC define to 201711.
	* intrinsic.texi: Update mentions of OpenACC version to 2.6.
	* gfortran.texi: Likewise. Remove experimental disclamer for OpenACC.
	* invoke.texi: Remove experimental disclamer for OpenACC.

2020-02-03  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93541
	* intrinisic.texi (OpenMP Modules OMP_LIB and OMP_LIB_KINDS):
	Add undocumented parameters from omp_lib.f90.in.

2020-02-03  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93427
	* resolve.c (resolve_assoc_var): Remove too strict check.
	* gfortran.dg/associate_51.f90: Update test case.

2020-02-01  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/92305
	* trans-types.c (gfc_get_function_type): Also push boolean_type_node
	types for non-character scalar VALUE optional dummy arguments.
	* trans-decl.c (create_function_arglist): Skip those in
	hidden_typelist.  Formatting fix.

2020-01-31  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93462
	* frontend-passes.c (gfc_code_walker): For EXEC_OACC_ATOMIC, set
	in_omp_atomic to true prevent front-end optimization.

2020-01-30  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	PR fortran/87103
	* expr.c (gfc_check_conformance): Check vsnprintf for truncation.
	* iresolve.c (gfc_get_string): Likewise.
	* symbol.c (gfc_new_symbol): Remove check for maximum symbol
	name length.  Remove redundant 0 setting of new calloc()ed
	gfc_symbol.

2020-01-30  Paul Thomas  <pault@gcc.gnu.org>
	    Jakub Jelinek  <jakub@redhat.com>

	PR fortran/92123
	* trans-decl.c (gfc_get_symbol_decl): Call gfc_defer_symbol_init for
	CFI descs.
	(gfc_build_builtin_function_decls): Use ".w." instead of ".ww" or ".wR"
	for gfor_fndecl_{cfi_to_gfc,gfc_to_cfi}.
	(convert_CFI_desc): Handle references to CFI descriptors.

2020-01-29  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/93463
	* openmp.c (oacc_code_to_statement): Handle
	EXEC_OACC_{ROUTINE,UPDATE,WAIT,CACHE,{ENTER,EXIT}_DATA,DECLARE}.

2020-01-28  Andrew Benson  <abensonca@gmail.com>

	PR fortran/93461
	* trans.h: Increase GFC_MAX_MANGLED_SYMBOL_LEN to
	GFC_MAX_SYMBOL_LEN*3+5 to allow for inclusion of submodule name,
	plus the "." between module and submodule names.
	* gfortran.dg/pr93461.f90: New test.

2020-01-28  Andrew Benson  <abensonca@gmail.com>

	PR fortran/93473
	* parse.c: Increase length of char variables to allow them to hold
	a concatenated module + submodule name.
	* gfortran.dg/pr93473.f90: New test.

2020-01-28  Julian Brown  <julian@codesourcery.com>

	PR fortran/93025
	* openmp.c (resolve_omp_clauses): Check array references for contiguity.

2020-01-28  Julian Brown  <julian@codesourcery.com>

	* gfortran.h (gfc_symbol): Add comp_mark bitfield.
	* openmp.c (resolve_omp_clauses): Disallow mixed component and
	full-derived-type accesses to the same variable within a single
	directive.

2020-01-28  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93464
	* openmp.c (gfc_omp_check_optional_argument): Avoid ICE when
	DECL_LANG_SPECIFIC and GFC_DESCRIPTOR_TYPE_P but not
	GFC_DECL_SAVED_DESCRIPTOR as for local allocatable character vars.

2020-01-28  Tobias Burnus  <tobias@codesourcery.com>

	* gfortran.texi (Runtime): Remove tailing '.' in @menu.

2020-01-27  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/85781
	* trans-expr.c (gfc_conv_substring): Handle non-ARRAY_TYPE strings
	of Bind(C) procedures.

2020-01-22  Jakub Jelinek  <jakub@redhat.com>

	* parse.c (parse_omp_structured_block): Handle ST_OMP_TARGET_PARALLEL.
	* trans-openmp.c (gfc_trans_omp_target)
	<case EXEC_OMP_TARGET_PARALLEL>: Call pushlevel first.

	PR fortran/93329
	* openmp.c (omp_code_to_statement): Handle remaining EXEC_OMP_*
	cases.

2020-01-21  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93309
	* interface.c (gfc_procedure_use): Also check parent namespace for
	'implict none (external)'.
	* symbol.c (gfc_get_namespace): Don't set has_implicit_none_export
	to parent namespace's setting.

2020-01-19  Thomas König  <tkoenig@gcc.gnu.org>

	PR fortran/44960
	* primary.c (gfc_match_rvalue): Break after setting MATCH_ERROR.
	* resolve.c (resolve_function): Issue error when a
	function call contains a reference.

2020-01-17  Mark Eggleston  <mark.eggleston@codethink.com>

	PR fortran/93236
	* resolve.c (resolve_types): Declare boolean recursive and set with the
	value of the recursive attribute of namespace proc_name symbol
	structure if it exists.  Call gfc_save_all if both flag_automatic and
	recursive are false or ns->save_all is true.

2020-01-16  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93253
	* check.c (gfc_invalid_boz): Mention -fallow-invalid-boz
	in the error message.
	* gfortran.texi (BOZ literal constants): List another missing
	extension and refer to -fallow-invalid-boz.
	* lang.opt (fallow-invalid-boz): Also mention 'X' in the help text
	as it is not covered by the previous wording.
	* primary.c (match_boz_constant): Tweak wording such that it is
	clear how to fix the nonstandard use.

2020-01-09  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/65428
	* array.c (empty_constructor): New variable.
	(empty_ts): New variable.
	(expand_constructor): Save typespec in empty_ts.
	Unset empty_constructor if there is an element.
	(gfc_expand_constructor): Initialize empty_constructor
	and empty_ts.  If there was no explicit constructor
	type and the constructor is empty, take the type from
	empty_ts.

2020-01-09  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/84135
	* array.c (gfc_set_array_spec): Fix shifting of codimensions
	when adding a dimension.
	* decl.c (merge_array_spec): Ditto. Fix using correct codimensions.

2020-01-07  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/93162
	* trans-openmp.c (gfc_trans_omp_clauses): Check for REF_ARRAY type
	before testing u.ar.type == AR_FULL.

2020-01-04  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/91640
	* trans-expr.c (gfc_conv_procedure_call): Avoid copy-out for nonvariable
	arguments to contiguous dummy args.  Avoid re-checking whether fsym is
	NULL.

2020-01-03  Tobias Burnus  <tobias@codesourcery.com>

	* trans-openmp.c (gfc_omp_check_optional_argument): Always return a
	Boolean expression; handle unallocated/disassociated actual arguments
	as absent if passed to nonallocatable/nonpointer dummy array arguments.
	(gfc_build_cond_assign): Change to assume a Boolean expr not a pointer.
	(gfc_omp_finish_clause, gfc_trans_omp_clauses): Assign NULL to generated
	array-data variable if the argument is absent. Simplify code as
	'present' is now a Boolean expression.

2020-01-03  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92994
	* primary.c (gfc_match_rvalue): Add some flavor checks
	gfc_matching_procptr_assignment.
	* resolve.c (resolve_assoc_var): Add more checks for invalid targets.

2020-01-02  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/68020
	* array.c (gfc_match_array_spec): Fix implied-type matching
	for rank > 2.

2020-01-01  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/93113
	* dependency.c (gfc_dep_resolver): Handle REF_INQUIRY in switch
	for ref types.

2020-01-01  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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