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

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  Jakub Jelinek  <jakub@redhat.com>

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	* gfortran.texi: Change singular to plural.

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

	* gfortran.texi: Document Fortran header directive.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	Update copyright years.

	* gfortranspec.c (lang_specific_driver): Update copyright notice
	dates.
	* gfc-internals.texi: Bump @copying's copyright year.
	* gfortran.texi: Ditto.
	* intrinsic.texi: Ditto.
	* invoke.texi: Ditto.
\f
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are permitted in any medium without royalty provided the copyright
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