2021-04-02  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2021-04-01  Harald Anlauf  <anlauf@gmx.de>

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

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

	Backported from master:
	2021-01-28  Harald Anlauf  <anlauf@gmx.de>

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

2020-12-23  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-12-17  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/98307
	* trans-stmt.c (check_forall_dependencies): Extend dependency
	check to allocatable components of derived types.

2020-12-11  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-11-29  Harald Anlauf  <anlauf@gmx.de>

	* expr.c (simplify_parameter_variable): Fix up character length
	after copying an array-valued expression.

2020-09-28  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Revert:
	2020-09-27  Steven G. Kargl  <kargl@gcc.gnu.org>
		    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95614
	* decl.c (gfc_get_common): Use gfc_match_common_name instead
	of match_common_name.
	* decl.c (gfc_bind_idents): Use gfc_match_common_name instead
	of match_common_name.
	* match.c : Rename match_common_name to gfc_match_common_name.
	* match.c (gfc_match_common): Use gfc_match_common_name instead
	of match_common_name.
	* match.h : Rename match_common_name to gfc_match_common_name.
	* resolve.c (resolve_common_vars): Check each symbol in a
	common block has a global symbol.  If there is a global symbol
	issue an error if the symbol type is known as is not a common
	block name.

2020-09-27  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Backported from master:
	2020-09-27  Steven G. Kargl  <kargl@gcc.gnu.org>
		    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95614
	* decl.c (gfc_get_common): Use gfc_match_common_name instead
	of match_common_name.
	* decl.c (gfc_bind_idents): Use gfc_match_common_name instead
	of match_common_name.
	* match.c : Rename match_common_name to gfc_match_common_name.
	* match.c (gfc_match_common): Use gfc_match_common_name instead
	of match_common_name.
	* match.h : Rename match_common_name to gfc_match_common_name.
	* resolve.c (resolve_common_vars): Check each symbol in a
	common block has a global symbol.  If there is a global symbol
	issue an error if the symbol type is known as is not a common
	block name.

2020-09-19  Tobias Burnus  <tobias@codesourcery.com>

	Backported from master:
	2020-09-17  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/96041
	PR fortran/93423
	* decl.c (gfc_match_submod_proc): Avoid later double-free
	in the error case.

2020-09-19  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-07-02  Harald Anlauf  <anlauf@gmx.de>

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

2020-07-23  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	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.

2020-07-05  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-06-30  Harald Anlauf  <anlauf@gmx.de>

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

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

	Backported from master:
	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.

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

	Backported from master:
	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 "*)".

2020-06-24  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.

2020-06-23  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	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.

2020-06-14  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.

2020-06-01  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.

2020-05-28  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.

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

	Backport from master
	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.

2020-05-11  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Backported from mainline
	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 (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_symbol): Use new field name and
	check whether it is at least 1, if it is not set the field to 1.

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.

2020-04-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk.
	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.

2020-04-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk.
	PR fortran/94270
	* trans-decl.c (generate_local_decl): Do not warn if the
	symbol is artifical.

2020-04-02  Mark Eggleston <markeggleston@gcc.gnu.org>

	Backport from master
	2020-04-02  Mark Eggleston <markeggleston@gcc.gnu.org>
	Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/94030
	* gfortran.dg/pr94030_1.f90: New test.
	* gfortran.dg/pr94030_2.f90: New test.

2020-03-30  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2019-12-06  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/92775
	* trans.h (struct lang_type, struct lang_decl): Remove span member.
	(GFC_DECL_SPAN, GFC_TYPE_ARRAY_SPAN): Remove macros.
	* trans-array.h (gfc_get_descriptor_offsets_for_info): Add another
	argument.
	* trans-array.c (gfc_get_descriptor_offsets_for_info): Add SPAN_OFF
	argument and initialize *SPAN_OFF to the offset of span field.
	* trans-types.c (gfc_get_array_descr_info): Adjust
	gfc_get_descriptor_offsets_for_info caller.  Compute elem_size
	as base->span instead of TYPE_SIZE_UNIT (etype) constant.

2020-03-25  Mark Eggleston <markeggleston@gcc.gnu.org>

	Backport from master
	2020-03-25  Mark Eggleston <markeggleston@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.

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

	Backported from mainline
	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.

2020-03-04  Release Manager

	* GCC 8.4.0 released.

2020-02-19  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Backported from mainline
	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.

2020-02-14  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	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}.

	2020-01-22  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.

	2019-12-19  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/92977
	* frontend-passes.c (in_omp_atomic): New variable.
	(cfe_expr_0, matmul_to_var_expr, matmul_temp_args,
	inline_matmul_assign): Don't optimize in EXEC_OMP_ATOMIC.
	(optimize_namespace): Clear in_omp_atomic.
	(gfc_code_walker): Set in_omp_atomic for EXEC_OMP_ATOMIC, save/restore
	it around.

	2019-12-11  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/92899
	* trans-openmp.c (gfc_trans_omp_atomic): For GFC_OMP_ATOMIC_SWAP,
	do look through conversion on expr2 if any.

	2019-12-05  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/92781
	* trans-decl.c (gfc_get_symbol_decl): If sym->backend_decl is
	current_function_decl, add length to current rather than parent
	function and expect DECL_CONTEXT (length) to be current_function_decl.

	2019-11-27  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/91944
	* simplify.c (gfc_simplify_spread): Check gfc_init_expr_flag instead
	of gfc_current_ns->sym_root->n.sym->attr.flavor == FL_PARAMETER.

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

	Backported from mainline
	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.

2020-01-10  Tobias Burnus  <tobias@codesourcery.com>

	Backported from mainline
	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.

2019-12-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/92961
	* gfortran.h (gfc_seen_div0): Add declaration.
	* arith.h (gfc_seen_div0): Add definition.
	(eval_intrinsic): For integer division by zero, set gfc_seen_div0.
	* decl.c (variable_decl):  If resolution resp. simplification
	fails for array spec and a division of zero error has been
	seen, return MATCH_ERROR.

2019-11-29  Harald Anlauf  <anlauf@gmx.de>

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

2019-11-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

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

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

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

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

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

2019-10-07  Thomas Koenig <tkoenig@gcc.gnu.org>

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

2019-09-28  Paul Thomas  <pault@gcc.gnu.org>

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

2019-09-18  Thomas Koenig  <tkoenig@gcc.gnu.org>

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

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

	Backport from trunk
	PR fortran/91557
	* trans-decl.c (generate_local_decl): Do not warn if the symbol
	is artificial.
	* trans-types.c (get_formal_from_actual_arglist): Set artificial
	attribute on dummy arguments.

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

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

2019-08-02  Thomas Koenig  <tkoenig@gcc.gnu.org>
	Paul Thomas <pault@gcc.gnu.org>

	Backport from trunk
	PR fortran/90786
	PR fortran/90813
	* trans-expr.c (pointer_assignment_is_proc_pointer) Remove as
	it is very simple and only called from one place.
	(gfc_trans_pointer_assignment): Rename non_proc_pointer_assign
	as non_proc_ptr_assign. Assign to it directly, rather than call
	to above, deleted function and use gfc_expr_attr instead of
	only checking the reference chain.
	* trans-decl.c (sym_identifier): New function.
	(mangled_identifier): New function, doing most of the work
	of gfc_sym_mangled_identifier.
	(gfc_sym_mangled_identifier): Use mangled_identifier.  Add mangled
	identifier to global symbol table.
	(get_proc_pointer_decl): Use backend decl from global identifier
	if present.

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

	Backport from trunk
	PR fortran/91077
	* trans-array.c (gfc_conv_scalarized_array_ref) Delete code
	that gave symbol backend decl for subref arrays.

2019-06-21  Thomas Koenig  <tkoenig@gcc.gnu.org>

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

2019-06-12  Thomas Koenig  <tkoenig@gcc.gnu.org>
	Tomáš Trnka  <trnka@scm.com>

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

2019-06-10  Paul Thomas  <pault@gcc.gnu.org>

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

2019-06-09  Paul Thomas  <pault@gcc.gnu.org>

	Backport from trunk
	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.

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

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

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

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

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

	PR fortran/90329
	Backported from mainline
	2019-05-29  Jakub Jelinek  <jakub@redhat.com>

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

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

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

	2019-05-16  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.

2019-04-30  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	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.

2019-04-24  Paul Thomas  <pault@gcc.gnu.org>

	Backport from mainline
	PR fortran/87127
	* resolve.c (check_host_association): If an external function
	is typed but not declared explicitly to be external, change the
	old symbol from a variable to an external function.

2019-04-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	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.

2019-04-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

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

2019-04-10  Harald Anlauf  <anlauf@gmx.de>

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

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.

2019-03-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/78865
	Backport from trunk
	* 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.

2019-03-24  Janus Weil  <janus@gcc.gnu.org>

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

2019-03-23  Thomas Koenig  <tkoeng@gcc.gnu.org>

	PR fortran/68009
	Backport from trunk
	* 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/84394
	Backport from trunk
	* 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.

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

	PR fortran/66089
	Backport from trunk
	* 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.

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

	PR fortran/66695
	PR fortran/77746
	PR fortran/79485
	Backport from trunk
	* 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.

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

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

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

	PR fortran/71544
	Backport from trunk
	* 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.

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

	PR fortran/87734
	Backort from trunk
	* symbol.c (gfc_add_procedure): Only throw an error if the
	procedure has not been declared either PUBLIC or PRIVATE.
	* resolve.c (is_illegal_recursion): Remove an assert().

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

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

2019-03-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

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

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

	Backport from trunk
	PR fortran/89077
	* decl.c (gfc_set_constant_character_len): Clear original string
	representation after padding has been performed to target length.
	* resolve.c (gfc_resolve_substring_charlen): Check substring
	length for constantness prior to general calculation of length.

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

	Backport from trunk
	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/89174
	Backport from trunk
	* trans-expr.c (gfc_find_and_cut_at_last_class_ref): Add is_mold
	to garguments. 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.

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

	PR fortran/87689
	Backport from trunk
	* gfortran.dg/lto/20091028-1_0.f90: Add -Wno-lto-type-mismatch to
	options.
	* gfortran.dg/lto/20091028-2_0.f90: Likewise.
	* gfortran.dg/lto/pr87689_0.f: New file.
	* gfortran.dg/lto/pr87689_1.f: New file.
	* gfortran.dg/altreturn_9_0.f90: New file.
	* gfortran.dg/altreturn_9_1.f90: New file.

2019-03-02  Jerry DeLisle <jvdelisle@gcc.gnu.org>

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

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

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

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

	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  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/86119
	Backport from trunk
	* 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.

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

	Backport from trunk
	PR fortran/88117
	* resolve.c (deferred_op_assign): Return if the lhs expression
	has the pointer attribute.

2019-02-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/71066
	Backport from trunk
	* 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.

2019-02-22  Release Manager

	* GCC 8.3.0 released.

2019-02-10  Harald Anlauf  <anlauf@gmx.de>

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

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

	PR fortran/71237
	Backport from trunk
	* 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.

2019-02-07  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	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.

	2019-01-19  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.

2019-02-05  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/67679
	Backport from trunk
	* trans-array.c (gfc_array_allocate):  For setting the bounds on
	the new array, add a condition for a not previously allocated
	variable.

2019-02-03  Paul Thomas  <pault@gcc.gnu.org>

	Backport from trunk
	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.

2019-02-03  Paul Thomas  <pault@gcc.gnu.org>

	Backport from trunk
	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.

2019-02-03  Paul Thomas  <pault@gcc.gnu.org>

	Backport from trunk
	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.

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

	PR fortran/88298
	Backport from trunk
	* 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  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/57048
	Backport from trunk
	* 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.

2019-01-27  Paul Thomas  <pault@gcc.gnu.org>

	Backport from trunk
	PR fortran/56386
	PR fortran/58906
	PR fortran/77385
	PR fortran/80260
	PR fortran/82077
	* resolve.c (resolve_variable): Fix up expressions with array
	associate names, where the parser did not detect that this is
	array and there was no array part_ref in the expression.
	* trans-expr.c (gfc_find_and_cut_at_last_class_ref): base_expr
	should be a copy of e and not the initialization expr.

2019-01-25  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87336
	* trans-array.c (gfc_get_array_span): Try to get the element
	length of incomplete types. Return NULL_TREE otherwise.
	(gfc_conv_expr_descriptor): Only set the 'span' field if the
	above does not return NULL_TREE. Set 'span' field if possible
	for all new descriptors.

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

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

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.

2019-01-08  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2018-12-12  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/88463
	* trans-openmp.c (gfc_omp_predetermined_sharing): Handle TREE_READONLY
	VAR_DECLs with DECL_EXTERNAL like those with TREE_STATIC.

	2018-12-07  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/88377
	* trans-openmp.c (gfc_omp_clause_default_ctor,
	gfc_omp_clause_copy_ctor, gfc_omp_clause_assign_op,
	gfc_omp_clause_linear_ctor, gfc_omp_clause_dtor): Only consider
	GFC_DECL_GET_SCALAR_ALLOCATABLE vars as scalar allocatables if they
	have pointer type.

2018-12-23  Paul Thomas  <pault@gcc.gnu.org>

	Backport from trunk
	PR fortran/77703
	* resolve.c (get_temp_from_expr): Use the string length of
	constant character expressions.

2018-12-23  Paul Thomas  <pault@gcc.gnu.org>

	Backport from trunk
	PR fortran/77325
	* trans-array.c (gfc_alloc_allocatable_for_assignment): If the
	rhs has a charlen expression, convert that and use it.
	* trans-expr.c (gfc_trans_assignment_1): The rse.pre for the
	assignment of deferred character array vars to a realocatable
	lhs should not be added to the exterior block since vector
	indices, for example, generate temporaries indexed within the
	loop.

2018-12-22  Steven G . Kargl  <kargl@gcc.gnu.org>

	PR fortran/85798
	* decl.c (gfc_match_data): If a component of a derived type entity
	appears in data statement, check that does not have the allocatable
	attribute.

2018-12-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/85544
	* frontend-passes.c (optimize_power): Remove.
	(optimize_op): Remove call to optimize_power.
	* trans-expr.c (gfc_conv_power_op): Handle cases of 1**integer,
	(2|4|8|16) ** integer and (-1) ** integer.

2018-12-22  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88169
	* module.c (mio_namelist): Remove an error condition/message that
	is contrary to the Fortran standard.

2018-12-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87359
	* trans-array.c (gfc_is_reallocatable_lhs): Correct the problem
	introduced by r264358, which prevented components of associate
	names from being reallocated on assignment.

2018-12-16  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88116
	PR fortran/88467
	* array.c (gfc_match_array_constructor): Check return value of
	gfc_convert_type().  Skip constructor elements with BT_UNKNOWN,
	which need to go through resolution.
	* intrinsic.c (gfc_convert_type_warn): Return early if the types
	martch (i.e., no conversion is required).
	* simplify.c (gfc_convert_constant): Remove a gfc_internal_error,
	and return gfc_bad_expr.

2018-12-15  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88138
	* decl.c (variable_decl): Check that a derived isn't being assigned
	an incompatible entity in an initialization.

2018-12-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88155
	* primary.c (gfc_match_structure_constructor):  Set the locus of
	an expression to avoid a NULL pointer dereference.

2018-12-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88249
	* gfortran.h: Update prototype for gfc_resolve_filepos().
	* io.c (gfc_resolve_filepos): Check for UNIT number if ERR= is present.
	Use passed in locus for error message.
	* resolve.c (gfc_resolve_code): Pass locus in gfc_resolve_filepos()
	call.

2018-12-10  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/87922
	* io.c (gfc_match_open): Additional checks on ASYNCHRONOUS.

2018-12-10  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88269
	* io.c (io_constraint): Update macro. If locus line buffer is NULL,
	use gfc_current_locus in error messages.
	(check_io_constraints): Catch missing IO UNIT in write and read
	statements.  io_constraint macro is incompatible here.

2018-12-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88205
	* io.c (gfc_match_open): Move NEWUNIT checks to after STATUS checks.

2018-12-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88206
	* match.c (gfc_match_type_spec): REAL can be an intrinsic function.

2018-12-09  Fritz Reese  <fritzoreese@gmail.com>

	PR fortran/88228
	* resolve.c (resolve_operator):  Do not call resolve_function.
	Break like other cases.

2018-12-08  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88048
	* resolve.c (check_data_variable): Named constant cannot be a
	data object.

2018-12-08  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88025
	* expr.c (gfc_apply_init):  Remove asserts that cannot trigger.
	Check for a NULL pointer.

2018-11-25  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/88073
	* frontend-passes.c (combine_array_constructor): Do not do
	anything if in a WHERE statement.

2018-11-24  Paul Thomas  <pault@gcc.gnu.org>

	Backport from trunk
	PR fortran/88143
	* resolve.c (resolve_variable): Check for associate names with
	NULL target.

2018-11-05  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2018-10-25  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/87725
	* openmp.c (gfc_match_omp_clauses): Parse simd, monotonic and
	nonmonotonic modifiers regardless of if they have been parsed
	already or if the opposite one has.  Fix up check whether
	comma after modifier should be parsed.
	(resolve_omp_clauses): Diagnose schedule modifier restrictions.

2019-11-03  Tobias Burnus  <burnus@net-b.de>
	    Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/87597
	* expr.c (gfc_simplify_expr): Avoid simplifying
	the 'array' argument to lbound/ubound/lcobound/
	ucobound.

2018-10-08  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83999
	Backport from trunk
	* resolve.c (resolve_fl_procedure): Include class functions in
	the test that elemental function results be scalar.

2018-10-08  Paul Thomas  <pault@gcc.gnu.org>

	Backport from trunk
	PR fortran/86372
	* trans-stmt.c (trans_associate_var): Character associate names
	with variable string length do not have to be deferred length
	for the string length to be set, if variable.

2018-10-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/86111
	Backport from trunk
	* gfortran.h (enum arith): Add ARITH_WRONGCONCAT.
	* arith.h (gfc_arith_error): Issue error for ARITH_WRONGCONCAT.
	(gfc_arith_concat):  If the types of op1 and op2 are not
	character of if their kinds do not match, issue ARITH_WRONGCONCAT.

2018-09-18  Janus Weil  <janus@gcc.gnu.org>

	Backport from trunk
	PR fortran/85395
	* decl.c (match_binding_attributes): Use correct default accessibility
	for procedure pointer components.

2018-09-18  Janus Weil  <janus@gcc.gnu.org>

	Backport from trunk
	PR fortran/86830
	* expr.c (gfc_is_simply_contiguous): Handle type-bound procedure calls
	with non-polymorphic objects.

2018-09-18  Paul Thomas  <pault@gcc.gnu.org>

	Backported from trunk
	PR fortran/85954
	* resolve.c (resolve_assoc_var): If the target expression is a
	deferred charlen dummy and the associate name shares the
	charlen, generate a new one. Make sure that new charlens are in
	the namespace list so that they get cleaned up.
	* trans-array.c (gfc_is_reallocatable_lhs): Associate names are
	not reallocatable.
	* trans-decl.c (gfc_get_symbol_decl): Put deferred character
	length dummy and result arrays on the deferred initialization
	list so that the variable length arrays can be correctly dealt
	with.
	* trans-expr.c (gfc_conv_string_length): Return if 'expr' is
	NULL rather than ICEing.

2018-09-12  Paul Thomas  <pault@gcc.gnu.org>

	Backported from trunk
	PR fortran/87284
	* trans-expr.c (gfc_trans_class_init_assign): Access to
	to array elements of the dynamic type requires that the array
	reference be added to the class expression and not the _data
	component, unlike scalar expressions.

2018-09-11  Paul Thomas  <pault@gcc.gnu.org>

	Backported from trunk
	PR fortran/87277
	* expr.c (is_subref_array): Add the check of dimensionality for
	class, dummy, pointer arrays.

2018-09-05  Janus Weil  <janus@gcc.gnu.org>

	Backported from trunk
	PR fortran/86116
	* interface.c (compare_type): Remove a CLASS/TYPE check.
	(compare_type_characteristics): New function that behaves like the old
	'compare_type'.
	(gfc_check_dummy_characteristics, gfc_check_result_characteristics):
	Call 'compare_type_characteristics' instead of 'compare_type'.

2018-09-04  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	* simplify.c (gfc_simplify_modulo): Re-arrange code to test
	whether 'P' is zero and issue an error if it is.

2018-09-01  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/86328
	PR fortran/86760
	* trans-array.c (gfc_conv_scalarized_array_ref): Do not fix
	info->descriptor but pass it directly to gfc_build_array_ref.
	(gfc_conv_array_ref): Likewise for se->expr.
	* trans.c (gfc_build_array_ref): If 'decl' is a COMPONENT_REF
	obtain the span field directly from it.

2018-08-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/86837
	* frontend-passes.c (var_in_expr_callback): New function.
	(var_in_expr): New function.
	(traverse_io_block): Use var_in_expr instead of
	gfc_check_dependency for checking if the variable depends on the
	previous interators.

2018-08-12  Paul Thomas  <pault@gcc.gnu.org>

	Backported from trunk
	PR fortran/86906
	* resolve.c (resolve_fl_variable_derived): Check if the derived
	type is use associated before checking for the host association
	error.

2018-07-26  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2018-07-10  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/86421
	* module.c (omp_declare_simd_clauses): Add LINEAR with _REF, _VAL and
	_UVAL suffixes.
	(mio_omp_declare_simd): Save and restore ref, val and uval modifiers
	on linear clauses.  Initialize n->where to gfc_current_locus.

2018-07-26  Release Manager

	* GCC 8.2.0 released.

2018-07-16  Fritz Reese  <fritzoreese@gmail.com>

	PR fortran/83184
	Backport from trunk.
	* decl.c (match_old_style_init): Initialize locus of variable expr when
	creating a data variable.
	(match_clist_expr): Verify array is explicit shape/size before
	attempting to allocate constant array constructor.

2018-07-16  Fritz Reese  <fritzoreese@gmail.com>

	Backport from trunk:

	PR fortran/86417
	* module.c (mio_component): Set component->loc when loading from module.

	PR fortran/83183
	PR fortran/86325
	* expr.c (class_allocatable, class_pointer, comp_allocatable,
	comp_pointer): New helpers.
	(component_initializer): Generate EXPR_NULL for allocatable or pointer
	components. Do not generate initializers for components within BT_CLASS.
	Do not assign to comp->initializer.
	(gfc_generate_initializer): Use new helpers; move code to generate
	EXPR_NULL for class allocatable components into component_initializer().

2018-07-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/82969
	PR fortran/86242
	* trans-array.c (structure_alloc_comps): Do not explicitly copy
	procedure pointer components.

2018-06-28  Fritz Reese  <fritzoreese@gmail.com>

	PR fortran/82865
	Backport from trunk.
	* decl.c (gfc_match_type): Refactor and check for PDT declarations.

2018-06-25  Fritz Reese  <fritzoreese@gmail.com>

	PR fortran/82972
	PR fortran/83088
	PR fortran/85851
	Backport from trunk.
	* expr.c (component_initializer): Assign init expr to c->initializer.
	(generate_isocbinding_initializer): New.
	(gfc_generate_initializer): Call generate_isocbinding_initializer to
	generate initializers for c_ptr and c_funptr with -finit-derived.

2018-06-25  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83118
	Back port from trunk
	* resolve.c (resolve_ordinary_assign): Force the creation of a
	vtable for assignment of non-polymorphic expressions to an
	unlimited polymorphic object.
	* trans-array.c (gfc_alloc_allocatable_for_assignment): Use the
	size of the rhs type for such assignments. Set the dtype, _len
	and vptrs appropriately.
	* trans-expr.c (gfc_trans_assignment): Force the use of the
	_copy function for these assignments.

2018-06-15  Cesar Philippidis  <cesar@codesourcery.com>

	Backport from mainline
	2018-06-13  Cesar Philippidis  <cesar@codesourcery.com>

	PR fortran/85703
	* parse.c (decode_oacc_directive): Set gfc_matching_function
	to false.
	(decode_omp_directive): Likewise.

2018-06-15  Cesar Philippidis  <cesar@codesourcery.com>

	Backport from mainline
	2018-06-13  Cesar Philippidis  <cesar@codesourcery.com>

	PR fortran/85702
	* openmp.c (gfc_match_oacc_wait): Use %C to report error location.

2018-06-15  Cesar Philippidis  <cesar@codesourcery.com>

	Backport from mainline
	2018-06-05  Cesar Philippidis  <cesar@codesourcery.com>

	PR fortran/85701
	* openmp.c (gfc_resolve_oacc_declare): Error on functions and
	subroutine data clause arguments.

2018-06-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/86110
	* array.c (gfc_resolve_character_array_constructor): Avoid NULL
	pointer dereference.

2018-06-12  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/44491
	* expr.c (gfc_check_assign): Select non-NULL locus.

2018-06-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85138
	PR fortran/85996
	PR fortran/86051
	* decl.c (gfc_match_char_spec): Use private namespace in attempt to
	reduce a charlen to a constant.

2018-06-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/86059
	* array.c (match_array_cons_element): NULL() cannot be in an
	array constructor.

2018-06-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/63514
	* symbol.c (gfc_add_volatile): Enforce F2008:C1282 and F2018:C1588.

2018-06-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/78278
	Committed as part of r261364
	* data.c (gfc_assign_data_value): Re-arrange code to allow for
	an error for double initialization of CHARACTER entities.

2018-06-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/38351
	* resolve.c (resolve_operator): Provide better error message for
	derived type entity used in an binary intrinsic numeric operator.

2018-06-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/78571
	* data.c (create_character_initializer): Return early if type is
	incompatible with CHARACTER.

2018-06-09  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85631
	Backport from trunk.
	* trans.h (gfc_ss): Add field no_bounds_check.
	* trans-array.c (gfc_conv_ss_startstride): If flag_realloc_lhs and
	ss->no_bounds_check is set, do not use runtime checks.
	* trans-expr.c (gfc_trans_assignment_1): Set lss->no_bounds_check
	for reallocatable lhs.

2018-06-07  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/86045
	Backport from trunk.
	* simplify.c (gfc_simplify_mod): Re-arrange code to test whether
	'P' is zero and issue an error if it is.

2018-06-07  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85641
	Backport from trunk.
	* frontend-passes.c (is_fe_temp): Add prototype.
	(realloc_string_callback): Early return for frontend-generated
	temporary.

2018-06-04  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85981
	* resolve.c (resolve_allocate_deallocate): Check errmsg is default
	character kind.

2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85786
	* trans-intrinsic.c (gfc_conv_associated): Add arg1se to the block.

2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85895
	Backport from trunk
	* resolve.c (resolve_sync): Resolve expression before checking for
	an error.

2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85780
	Backport from trunk
	* resolve.c (resolve_fl_procedure): Avoid NULL dereference.

2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85779
	Backport from trunk
	* decl.c (gfc_match_derived_decl): Fix NULL point dereference.

2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85543
	Backport from trunk
	* resolve.c (update_current_proc_array_outer_dependency): Avoid NULL
	pointer dereference.

2018-05-20  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/80657
	Backport from trunk
	* resolve.c (flag_fn_result_spec): Use the 'sym' argument to
	test for self refs to the function result in the character len
	expression. If a self reference is found, emit an error and
	return true.
	(resolve_fntype): Use the function symbol in the calls to the
	above.

2018-05-20  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/49636
	Backport from trunk
	* trans-array.c (gfc_get_array_span): Renamed from
	'get_array_span'.
	(gfc_conv_expr_descriptor): Change references to above.
	* trans-array.h : Add prototype for 'gfc_get_array_span'.
	* trans-stmt.c (trans_associate_var): If the associate name is
	a subref array pointer, use gfc_get_array_span for the span.

2018-05-20  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/82275
	Backport from trunk
	* match.c (gfc_match_type_spec): Go through the array ref and
	decrement 'rank' for every dimension that is an element.

2018-05-19  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/82923
	PR fortran/66694
	PR fortran/82617
	Backport from trunk
	* trans-array.c (gfc_alloc_allocatable_for_assignment): Set the
	charlen backend_decl of the rhs expr to ss->info->string_length
	so that the value in the current scope is used.

2018-05-13  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/85742
	* trans-types.c (gfc_get_dtype_rank_type): Reorder evaluation
	of 'size'. If the element type is a pointer use the size of the
	TREE_TYPE of the type, unless it is VOID_TYPE. In this latter
	case, set the size to zero.

2018-05-12  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85542
	Backport from trunk
	* expr.c (check_inquiry): Avoid NULL pointer dereference.

2018-05-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/70870
	Backport from trunk
	* data.c (gfc_assign_data_value): Check that a data object does
	not also have default initialization.

2018-05-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85521
	Backport from trunk
	* array.c (gfc_resolve_character_array_constructor): Substrings
	with upper bound smaller than lower bound are zero length strings.

2018-05-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85687
	Backport from trunk
	* check.c (gfc_check_rank): Check that the argument is a data object.

2018-05-11  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/68846
	PR fortran/70864
	Backport from trunk
	* resolve.c (get_temp_from_expr): The temporary must not have
	dummy or intent attributes.

2018-05-06  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/85507
	Backport from trunk.
	* dependency.c (gfc_dep_resolver): Revert looking at coarray dimension
	introduced by r259385.
	* trans-intrinsic.c (conv_caf_send): Always report a dependency for
	same variables in coarray assignments.

2018-05-02  Release Manager

	* GCC 8.1.0 released.

2018-04-24  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85520
	* decl.c (gfc_match_char_spec): Check for negative length and set to 0.

2018-04-14  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/81773
	PR fortran/83606
	* dependency.c (gfc_dep_resolver): Coarray indexes are to be ignored
	during dependency computation.  They define no data dependency.
	* trans-array.c (conv_array_index_offset): The stride can not be set
	here, prevent fail.
	* trans-intrinsic.c (conv_caf_send): Add creation of temporary array
	for caf_get's result and copying to the array with vectorial
	indexing.

2018-04-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85387
	* frontend-passes.c (traverse_io_block): Check for start, end or
	stride being defined by an outer implied DO loop.

2018-04-12  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/83064
	PR testsuite/85346
	* trans-stmt.c (gfc_trans_forall_loop): Use annot_expr_ivdep_kind
	for annotation and remove dependence on -ftree-parallelize-loops.

2018-04-10  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/85313
	* openmp.c (resolve_omp_do): Remove bogus if (j < i) break;.
	(resolve_oacc_nested_loops): Likewise.  Formatting fix.

2018-04-09  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/83064
	* trans-stmt.c (gfc_trans_forall_loop): Remove annotation for
	parallell processing of DO CONCURRENT -ftree-parallelize-loops
	is set.

2018-04-09  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/51260
	* resolve.c (resolve_variable): Simplify cases where access to a
	parameter array results in a single constant.

2018-04-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85102
	* decl.c (variable_decl): If upper or lower bounds simplify
	to a constant, use that.

2018-03-30  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84931
	* simplify.c (gfc_convert_constant): Handle case of array
	constructors within an array that has no iterator and improve
	the conciseness of this section of code.

2017-03-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85111
	* array.c (gfc_resolve_character_array_constructor): Early
	exit for zero-size arrays.
	* simplify.c (simplify_transformation_to_array): Exit early
	if the result size is zero.
	(simplify_minmaxloc_to_array): Likewise.

2018-03-28  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/69497
	* symbol.c (gfc_symbol_done_2): Start freeing namespaces
	from the root.
	(gfc_free_namespace): Restore assert (revert r258839).

2018-03-28  Jakub Jelinek  <jakub@redhat.com>

	* gfortran.h (gfc_dt): Rename default_exp field to dec_ext.
	* ioparm.def (IOPARM_dt_default_exp): Rename to ...
	(IOPARM_dt_dec_ext): ... this.
	* trans-io.c (build_dt): Adjust for default_exp renaming to
	dec_ext and IOPARM_dt_default_exp renaming to IOPARM_dt_dec_ext.
	* io.c (match_io): Likewise.

2018-03-27  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85084
	* frontend-passes.c (gfc_run_passes): Do not run front-end
	optimizations if a previous error occurred.

2018-03-27  Thomas Koenig  <tkoenig@gcc.gnu.org>
	Harald Anlauf  <anlauf@gmx.de>

	PR fortran/85083
	* primary.c (gfc_convert_to_structure_constructor): Check
	conformance of argument types in structure constructor.

2018-03-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/66709
	* io.c: Include constructor.h.
	(resolve_tag_format): For a constant character array, concatenate
	into a single character expression.

2018-03-25  Seth Johnson <johnsonsr@ornl.gov>
	Dominique d'Humieres  <dominiq@gcc.gnu.org>

	PR fortran/84924
	* check.c (gfc_check_c_f_pointer): Allow scalar noninteroperable
	scalar derived type with -std=f2003 and -std=f2008.

2018-03-24  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
	    Dominique d'Humieres  <dominiq@gcc.gnu.org>

	PR fortran/69497
	* symbol.c (gfc_free_namespace): Delete the assert and only if
	refs count is equals zero, free the namespace. Otherwise,
	something is halfway and other errors will resound.

2018-03-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/70068
	* expr.c (find_substring_ref): Change types of start, end
	and length variables to gfc_charlen_t. Set length to zero
	for empty substring.

2018-03-24  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/42651
	* decl.c (check_function_name): Improved error message
	(gfc_match_volatile, gfc_match_asynchronous) Use check_function_name.

2018-03-22  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/84922
	* decl.c (get_proc_name): If the MODULE prefix appears in interface
	body, then it must appear on the contained subroutine or function.
	While here, fix nearby mis-indented code.

2018-03-21  Thomas Koenig  <tkoenig@gcc.gnu.org>
	Harald Anlauf  <anlauf@gmx.de>

	PR fortran/84957
	* trans-types.c (gfc_sym_type): Do not dereference NULL pointer.

2018-03-21  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/84615
	* trans-expr.c (gfc_conv_procedure_call): Convert charlen to
	gfc_charlen_type_node when calling procedure.

2018-03-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85001
	* interface.c (symbol_rank): Remove bogus null pointer check that
	crept in when translating a ternary operator into an if-else
	constructor.

2018-03-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/84931
	* simplify.c (gfc_convert_constant): Correctly handle iterators
	for type conversion.

2018-03-18  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/77414
	* decl.c (get_proc_name):  Check for a subroutine re-defined in
	the contain portion of a subroutine.  Change language of existing
	error message to better describe the issue. While here fix whitespace
	issues.

2018-03-18  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/65453
	* decl.c (get_proc_name): Catch clash between a procedure statement
	and a contained subprogram

2018-03-16  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/69395
	* decl.c (merge_array_spec): Correct the error condition.

2018-03-15  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/78741
	* decl.c (get_proc_name):  Check for clash of entry name with
	subroutine name.

2018-03-15  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/69395
	* decl.c (merge_array_spec): Limit the merging to maximum allowed
	dimensions, and issue error message if limit is exceeded.

2018-03-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	* check.c (gfc_check_kill_sub):  Remove check for INTEGER(4) or (8).
	* intrinsic.c (add_functions): Remove reference to gfc_resolve_kill.
	(add_subroutines): Remove reference to gfc_resolve_kill_sub.
	* intrinsic.texi: Update documentation.
	* iresolve.c (gfc_resolve_kill, gfc_resolve_kill_sub): Remove.
	* trans-decl.c (gfc_build_intrinsic_function_decls):  Add
	gfor_fndecl_kill and gfor_fndecl_kill_sub
	* trans-intrinsic.c (conv_intrinsic_kill, conv_intrinsic_kill_sub): new
	functions.
	(gfc_conv_intrinsic_function): Use conv_intrinsic_kill.
        (gfc_conv_intrinsic_subroutine): Use conv_intrinsic_kill_sub.
	* trans.h: Declare gfor_fndecl_kill and gfor_fndecl_kill_sub.

2018-03-11  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84546
	* trans-array.c (structure_alloc_comps): Make sure that the
	vptr is copied and that the unlimited polymorphic _len is used
	to compute the size to be allocated.
	* trans-expr.c (gfc_get_class_array_ref): If unlimited, use the
	unlimited polymorphic _len for the offset to the element.
	(gfc_copy_class_to_class): Set the new 'unlimited' argument.
	* trans.h : Add the boolean 'unlimited' to the prototype.

2018-03-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/83939
	* resolve.c (resolve_fl_procedure): Enforce F2018:C15100.

2018-03-11  Steven G. Kargl  <kargls@gcc.gnu.org>

	* check.c (gfc_check_kill):  Check pid and sig are scalar.
	(gfc_check_kill_sub): Restrict kind to 4 and 8.
	* intrinsic.c (add_function): Sort keyword list.  Add pid and sig
	keywords for KILL.  Remove redundant *back="back" in favor of the
	original *bck="back".
	(add_subroutines): Sort keyword list.  Add pid and sig keywords
	for KILL.
	* intrinsic.texi: Fix documentation to consistently use pid and sig.
	* iresolve.c (gfc_resolve_kill): Kind can only be 4 or 8.  Choose the
	correct function.
	(gfc_resolve_rename_sub): Add comment.

2018-03-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/66128
	* simplify.c (simplify_transformation): Return default result for
	empty array argument.
	(gfc_simplify_all): Remove special-case handling for zerosize.
	(gfc_simplify_any): Likewise.
	(gfc_simplify_count): Likewise.
	(gfc_simplify_iall): Likewise.
	(gfc_simplify_iany): Likewise.
	(gfc_simplify_iparity): Likewise.
	(gfc_simplify_minval): Likewise.
	(gfc_simplify_maxval): Likewise.
	(gfc_simplify_norm2): Likewise.
	(gfc_simplify_product): Likewise.
	(gfc_simplify_sum): Likewise.

2018-03-10  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/84734
	* arith.c (check_result, eval_intrinsic):  If result overflows, pass
	the expression up the chain instead of a NULL pointer.

2018-03-07  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/64124
	PR fortran/70409
	* decl.c (gfc_match_char_spec): Try to reduce a charlen to a constant.

2017-03-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/84697
	PR fortran/66128
	* expr.c (simplify_parameter_variable): If p is a size zero array
	and not an ARRAY_EXPR insert an empty array constructor and
	return.
	* gfortran.h: Add prototype for gfc_is_size_zero_array.
	* simplify.c (is_size_zero_array): Make non-static and rename into
	(gfc_is_size_zero_array):  Check for parameter arrays of zero
	size by comparing shape and absence of constructor.
	(gfc_simplify_all): Use gfc_is_size_zero_array instead of
	is_size_zero_array.
	(gfc_simplify_count): Likewise.
	(gfc_simplify_iall): Likewise.
	(gfc_simplify_iany): Likewise.
	(gfc_simplify_iparity): Likewise.
	(gfc_simplify_minval): Likewise.
	(gfc_simplify_maxval): Likewise.
	(gfc_simplify_product): Likewise.
	(gfc_simplify_sum): Likewise.

2018-03-06  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/56667
	* primary.c (match_sym_complex_part): Give the matcher for an implied
	do-loop a chance to run.

2018-03-03  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/71085
	* trans-expr.c (gfc_apply_interface_mapping_to_expr): Do not
	dereference NULL pointer.

2018-03-03  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/66128
	* simplify.c (is_size_zero_array): New function to check for size
	zero array.
	(gfc_simplify_all, gfc_simplify_any, gfc_simplify_count,
	 gfc_simplify_iall, gfc_simplify_iany, gfc_simplify_iparity,
	 gfc_simplify_minval, gfc_simplify_maxval, gfc_simplify_norm2,
	 gfc_simplify_product, gfc_simplify_sum): Use it, and implement
	requirements from F2018.

2018-03-03  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/51434
	* simplify.c (gfc_simplify_transfer): Resolve mold.

2018-03-03  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/80965
	* resolve.c (build_loc_call): Change symtree name from 'loc' to
	'_loc'.

2018-03-01  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84219
	* target-memory.c (gfc_interpret_derived): Assert that BT_VOID
	components are caf tokens.
	(gfc_target_interpret_expr): Treat BT_VOID expressions as
	integers.

2018-03-01  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84538
	* class.c (class_array_ref_detected): Remove the condition that
	there be no reference after the array reference.
	(find_intrinsic_vtab): Remove excess whitespace.
	* trans-array.c (gfc_conv_scalarized_array_ref): Rename 'tmp'
	as 'base and call build_class_array_ref earlier.

2018-02-28  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83901
	* trans-stmt.c (trans_associate_var): Make sure that the se
	expression is a pointer type before converting it to the symbol
	backend_decl type.

2018-02-25  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/83633
	* decl.c (variable_decl): Check that an explicit-shape-array with
	nonconstant bounds is allowed.

2018-02-25  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84523
	* trans-intrinsic.c (gfc_conv_allocated): If the argument se
	has a pre block, add it to the expression pre block.

2018-02-25  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/78238
	* gfortran.h (gfc_integer_4_kind): Define.
	* resolve.c (resolve_select_type): Make sure that the
	kind of c->high is gfc_integer_4_kind.

2018-02-24  Steven G. Kargl <kargl@gcc.gnu.org>

	PR fortran/30792
	* decl.c (gfc_match_data): Check for invalid substring in
	data-implied-do

2018-02-23  Steven G. Kargl  <kargl@gcc.gnu.org>

	* intrinsic.texi: Arguments to MATMUL cannot both be rank one.

2018-02-23  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/84511
	* trans-io.c (transfer_expr): Deal with C_LOC in transfer statement.

2018-02-23  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/84346
	* interface.c (compare_actual_formal): Issue error if keyword is
	used in a statement function.

2018-02-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/84506
	* trans-io.c (set_parameter_value_inquire): Adjust range check of
	negative unit values for kind=8 units to the kind=4 negative limit.

2018-02-23  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83149
	* trans-types.c (gfc_sym_type): Test sym->ns->proc_name before
	accessing its components.

2018-02-23  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83149
	* trans-decl.c (gfc_finish_var_decl): Test sym->ns->proc_name
	before accessing its components.

2018-02-23  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83148
	* trans-const.c : Clean up some whitespace issues.
	* trans-expr.c (gfc_conv_initializer): If an iso_c_binding
	derived type has a kind value of zero, set it to the default
	integer kind.

2018-02-23  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/84519
	* trans-decl.c (gfc_build_builtin_function_decls): Add bool
	argument to stop and error stop decls.
	* trans-stmt.c (gfc_trans_stop): Add false value to argument
	lists.

2018-02-22  Janne Blomqvist  <jb@gcc.gnu.org>

	PR 78534
	PR 84509
	* trans-decl.c (gfc_build_builtin_function_decls): Pass
	gfc_int8_type node to pause_numeric, size_type_node to
	pause_string.
	* trans-stmt.c (gfc_trans_pause): Likewise.

2018-02-22  Janne Blomqvist  <jb@gcc.gnu.org>

	* gfortran.texi: Update Coarray API description.
	* trans-decl.c (gfc_build_builtin_function_decls): Use size_t for
	character lengths, int for exit codes.
	(generate_coarray_sym_init): Use size_t for character length.
	* trans-intrinsic.c (conv_co_collective): Likewise.
	* trans-stmt.c (gfc_trans_lock_unlock): Likewise.
	(gfc_trans_event_post_wait): Likewise.
	(gfc_trans_sync): Likewise.
        (gfc_trans_stop): Use size_t for character lengths, int for exit
	codes.

2018-02-20  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/48890
	PR fortran/83823
	* primary.c (gfc_convert_to_structure_constructor):
	For a constant string constructor, make sure the length
	is correct.

2018-02-19  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83344
	PR fortran/83975
	* resolve.c (resolve_assoc_var): Rearrange the logic for the
	determination of the character length of associate names. If
	the associate name is missing a length expression or the length
	expression is not a constant and the target is not a variable,
	make the associate name allocatable and deferred length.
	* trans-decl.c (gfc_get_symbol_decl): Null the character length
	backend_decl for deferred length associate names that are not
	variables. Set 'length' to gfc_index_zero_node for character
	associate names, whose character length is a PARM_DECL.

2018-02-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/35339
	* frontend-passes.c (traverse_io_block): Remove workaround for
	PR 80945.

2018-02-19  Andre Vehreschild  <vehre@gcc.gnu.org>

	* gfortran.texi: Document additional src/dst_type.  Fix some typos.
	* trans-decl.c (gfc_build_builtin_function_decls): Declare the new
	argument of _caf_*_by_ref () with * e { get, send, sendget }.
	* trans-intrinsic.c (gfc_conv_intrinsic_caf_get): Add the type of the
	data referenced when generating a call to caf_get_by_ref ().
	(conv_caf_send): Same but for caf_send_by_ref () and
	caf_sendget_by_ref ().

2018-02-18  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/84389
	* io.c (check_format): Allow FMT_COLON.

2018-02-18  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/80945
	* trans-array.c (gfc_conv_expr_descriptor): Set parmtype from
	the typenode in the case of deferred length characters.

2018-02-17  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/84270
	* frontend-passes (scalarized_expr):  If the expression
	is an assumed size array, leave in the last reference
	and pass AR_SECTION instead of AR_FULL to gfc_resolve
	in order to avoid an error.

2018-02-17  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84115
	* resolve.c (resolve_assoc_var): If a non-constant target expr.
	has no string length expression, make the associate variable
	into a deferred length, allocatable symbol.
	* trans-decl.c (gfc_is_reallocatable_lhs): Add and use a ptr to
	the symbol.
	* trans-stmt.c (trans_associate_var): Null and free scalar
	associate names that are allocatable. After assignment, remove
	the allocatable attribute to prevent reallocation.

2018-02-16  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/84418
	* trans-openmp.c (gfc_trans_omp_clauses): For OMP_CLAUSE_LINEAR_REF
	kind set OMP_CLAUSE_LINEAR_STEP to TYPE_SIZE_UNIT times last_step.

2018-02-16  Dominique d'Humieres  <dominiq@gcc.gnu.org>

	PR fortran/84354
	* decl.c (gfc_get_pdt_instance): Replace '%qs' with %qs.

2018-02-15  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/84409
	* interface.c (check_dtio_arg_TKR_intent): Add a check for character
	length.

2018-02-14  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/84385
	* match.c (gfc_match_select_type): Fix check for selector in
	SELECT TYPE statement.

2018-02-13  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/84313
	* symbol.c (check_conflict): Reject procedure pointers in common blocks.

2018-02-13  Alastair McKinstry  <alastair.mckinstry@sceal.ie>
	    Janne Blomqvist  <jb@gcc.gnu.org>

	* module.c (dump_module): Use lbasename to ensure that module
	files are reproducible.

2018-02-12  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/84273
	* resolve.c (resolve_component): Fix checks of passed argument in
	procedure-pointer components.

2018-02-11  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	PR fortran/35299
	* resolve.c (resolve_formal_arglist): Update error message.

2018-02-11  Andre Vehreschild  <vehre@gcc.gnu.org>

	* gfortran.texi: Fix typos in documentation of caf_register ().
	* trans-array.c (structure_alloc_comps): Only register a component of
	a derived typed corray, not of an ultimate component coarray.

2018-02-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/54223
	PR fortran/84276
	* interface.c (compare_actual_formal): Add in_statement_function
	bool parameter.  Skip check of INTENT attribute for statement
	functions.  Arguments to a statement function cannot be optional,
	issue error for missing argument.
	(gfc_procedure_use, gfc_ppc_use, gfc_arglist_matches_symbol): Use
	 in_statement_function.

2018-02-11  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84074
	* trans-expr.c (gfc_conv_derived_to_class): Set the use_offset
	flag. If the is a vector subscript or the expression is not a
	variable, make the descriptor one-based.

2018-02-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84141
	PR fortran/84155
	* trans-array.c (gfc_array_init_size): Revert the change made
	in revision 257356 setting the dtype.
	* trans-types.c (gfc_get_dtype): Do not use the cached dtype.
	Call gfc_get_dtype_rank_type every time.

	PR fortran/56691
	* trans-array.c (gfc_conv_expr_descriptor): If the source array
	is a descriptor type, use its offset, removing the condition
	that is be a class expression.

2018-02-07  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/82994
	* match.c (gfc_match_deallocate): Check for NULL pointer.

2018-02-07  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/68560
	* trans-intrinsic.c (gfc_conv_intrinsic_shape): New function.
	(gfc_conv_intrinsic_function): Call it.

2018-02-07  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/82049
	* match.c (gfc_match_type_spec): If the charlen is non-NULL, then
	try to resolve it.  While here return early if possible.

2018-02-04  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84115
	* trans-decl.c (gfc_get_symbol_decl): Do not finish the decl of
	'length' if the symbol charlen backend_decl is an indirect ref.

2018-02-03  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84141
	PR fortran/84155
	* trans-array.c (gfc_array_init_size): Instead of gfc_get_dtype
	use gfc_get_dtype_rank_type.

2018-02-01  Janne Blomqvist  <jb@gcc.gnu.org>

	PR 83975
	PR 83344
	* resolve.c (resolve_assoc_var): Generate an error if
	target length unknown.

2018-02-01  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/83705
	* simplify.c (gfc_simplify_repeat): Increase limit for deferring
	to runtime, print a warning message.

2018-01-31  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/84116
	* openmp.c (gfc_match_omp_clauses): If all the linear
	gfc_match_omp_variable_list calls failed, don't gfc_free_omp_namelist
	nor set *head = NULL.  Formatting fixes.

2018-01-31  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84088
	* trans-expr.c (gfc_conv_procedure_call): If the parm expr is
	an address expression passed to an assumed rank dummy, convert
	to an indirect reference.

2018-01-31  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* dump-parse-tree.c (write_proc): Use sym_name (which may
	be sym->binding_label) instead of sym->name.

2018-01-31  Janne Blomqvist  <jb@gcc.gnu.org>

	* trans-const.c (gfc_conv_string_init): Use gfc_charlen_t instead
	of int for slen.

2018-01-31  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/78534
	* trans-expr.c (fill_with_spaces): Use memset instead of
	generating loop.
	(gfc_trans_string_copy): Improve opportunity to use builtins with
	constant lengths.

2018-01-30  Jakub Jelinek  <jakub@redhat.com>

	PR debug/84131
	* trans-array.c (gfc_get_descriptor_offsets_for_info): Set *data_off
	to DATA_FIELD's offset rather than OFFSET_FIELD's offset.

2018-01-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/84134
	* array.c (gfc_ref_dimen_size): Whitespace fixes.  If stride is
	zero, return false.

2018-01-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/84133
	* frontend-passes (matmul_to_var_expr): Return early if
	in association list.
	(inline_matmul_assign): Likewise.

2017-01-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/84073
	* resolve.c (resolve_component): Ensure BIND(C) character
	components have length one.
	(resolve_symbol): Likewise for variables.

2018-01-27  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/84065
	* decl.c (add_init_expr_to_sym): Ignore initializers for too large
	lengths.

2018-01-26  Damian Rouson  <damian@sourceryinstitute.org>
	    Alessandro Fanfarillo  <fanfarillo.gcc@gmail.com>
	    Soren Rasmussen  <s.c.rasmussen@gmail.com>

	Partial support for Fortran 2018 teams features.

	* array.c (gfc_match_array_ref): add team attribute in coarray
	transfers.
	* check.c (gfc_check_get_team, gfc_check_team_number): add new
	functions for get_team and team_number.
	* dump-parse-tree.c (show_code_node): add new statements: form team,
	change team, end team, and sync team.
	* expr.c (gfc_find_team_co): add new function.
	* gfortran.h: add new statements.
	* intrinsic.c (add_functions): add get_team and team_number functions.
	* intrinsic.h: add get_team and team_number prototypes for check,
	simplify, and resolve.
	* iresolve.c (gfc_resolve_get_team, gfc_resolve_team_number): add new
	functions.
	* iso-fortran-env.def: add the team_type derived type.
	* match.c (gfc_match_if, gfc_match_form_team, gfc_match_team_number)
	(gfc_match_end_team, gfc_match_sync_team, gfc_match_change_team):
	add change team, end team, form team, sync team match and functions.
	* match.h: add new prototypes for change team, end team, form team,
	and sync team.
	* parse.c (decode_statement): add cases for change team, end team,
	form team, and sync team.
	* resolve.c: add cases for exec form team, change team, end team, and
	sync team.
	* simplify.c (gfc_simplify_get_team): add new function for get team.
	* st.c (gfc_free_statement): add cases exec for change team, end team,
	form team, sync team.
	* trans-decl.c (gfor_fndecl_caf_form_team)
	(gfor_fndecl_caf_change_team, gfor_fndecl_caf_end_team)
	(gfor_fndecl_caf_sync_team, gfor_fndecl_caf_get_team)
	(gfor_fndecl_caf_team_number): add functions and definitions.
	* trans-intrinsic.c (conv_caf_send, conv_intrinsic_team_number): add
	new function and team_type argument support.
	* trans-stmt.c (gfc_trans_form_team, gfc_trans_change_team)
	(gfc_trans_end_team, gfc_trans_sync_team): add new functions.
	* trans-stmt.h: add new prototypes.
	* trans-types.c (gfc_get_derived_type): check condition for team_type.
	* trans.c (trans_code): new exec cases for form team, change team, end
	team, and sync team.
	* trans.h: add new prototypes.

2018-01-26  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/83998
	* simplify.c (compute_dot_product):  Initialize result to INTEGER(1) 0
	or .false.  The summation does the correct type conversion.
	(gfc_simplify_dot_product): Special case zero-sized arrays.

2018-25-01  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/37577
	* array.c (gfc_match_array_ref): If standard earlier than F2008
	it is an error if the reference dimension is greater than 7.
	libgfortran.h : Increase GFC_MAX_DIMENSIONS to 15. Change the
	dtype masks and shifts accordingly.
	* trans-array.c (gfc_conv_descriptor_dtype): Use the dtype
	type node to check the field.
	(gfc_conv_descriptor_dtype): Access the rank field of dtype.
	(duplicate_allocatable_coarray): Access the rank field of the
	dtype descriptor rather than the dtype itself.
	* trans-expr.c (get_scalar_to_descriptor_type): Store the type
	of 'scalar' on entry and use its TREE_TYPE if it is ARRAY_TYPE
	(ie. a character).
	(gfc_conv_procedure_call): Pass TREE_OPERAND (tmp,0) to
	get_scalar_to_descriptor_type if the actual expression is a
	constant.
	(gfc_trans_structure_assign): Assign the rank directly to the
	dtype rank field.
	* trans-intrinsic.c (gfc_conv_intrinsic_rank): Cast the result
	to default integer kind.
	(gfc_conv_intrinsic_sizeof): Obtain the element size from the
	'elem_len' field of the dtype.
	* trans-io.c (gfc_build_io_library_fndecls): Replace
	gfc_int4_type_node with dtype_type_node where necessary.
	(transfer_namelist_element): Use gfc_get_dtype_rank_type for
	scalars.
	* trans-types.c : Provide 'get_dtype_type_node' to acces the
	dtype_type_node and, if necessary, build it.
	The maximum size of an array element is now determined by the
	maximum value of size_t.
	Update the description of the array descriptor, including the
	type def for the dtype_type.
	(gfc_get_dtype_rank_type): Build a constructor for the dtype.
	Distinguish RECORD_TYPEs that are BT_DERIVED or BT_CLASS.
	(gfc_get_array_descriptor_base): Change the type of the dtype
	field to dtype_type_node.
	(gfc_get_array_descr_info): Get the offset to the rank field of
	the dtype.
	* trans-types.h : Add a prototype for 'get_dtype_type_node ()'.
	* trans.h : Define the indices of the dtype fields.

2018-23-01  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83866
	* decl.c (gfc_match_derived_decl): If eos not matched, recover
	and emit error about garbage after declaration.

2018-23-01  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83898
	* trans-stmt.c (trans_associate_var): Do not set cst_array_ctor
	for characters.

2018-01-22  Janne Blomqvist  <jb@gcc.gnu.org>

	PR 78534
	PR 83704
	* arith.c (gfc_arith_concat): Use size_t for string length.
	(gfc_compare_string): Likewise.
	(gfc_compare_with_Cstring): Likewise.
	* array.c (gfc_resolve_character_array_constructor): Use
	HOST_WIDE_INT, gfc_mpz_get_hwi.
	* check.c (gfc_check_fe_runtime_error): Use size_t.
	* data.c (create_character_initializer): Use HOST_WIDE_INT,
	gfc_extract_hwi.
	* decl.c (gfc_set_constant_character_len): Use gfc_charlen_t.
	(add_init_expr_to_sym): Use HOST_WIDE_INT.
	* expr.c (gfc_build_init_expr): Use HOST_WIDE_INT,
	gfc_extract_hwi.
	(gfc_apply_init): Likewise.
	* match.h (gfc_set_constant_character_len): Update prototype.
	* primary.c (match_string_constant): Use size_t.
	* resolve.c (resolve_ordinary_assign): Use HOST_WIDE_INT,
	gfc_mpz_get_hwi.
	* simplify.c (init_result_expr): Likewise.
	(gfc_simplify_len_trim): Use size_t.
	* target-memory.c (gfc_encode_character): Use size_t.
	(gfc_target_encode_expr): Use HOST_WIDE_INT, gfc_mpz_get_hwi.
	(interpret_array): Use size_t.
	(gfc_interpret_character): Likewise.
	* target-memory.h (gfc_encode_character): Update prototype.
	(gfc_interpret_character): Likewise.
	(gfc_target_interpret_expr): Likewise.
	* trans-const.c (gfc_build_string_const): Use size_t for length
	argument.
	(gfc_build_wide_string_const): Likewise.
	* trans-const.h (gfc_build_string_const): Likewise.
	(gfc_build_wide_string_const): Likewise.

2018-01-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/83900
    * simplify.c (gfc_simplify_matmul): Set return type correctly.

2018-01-19  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/83900
	* simplify.c (gfc_simplify_matmul): Delete bogus assertion.

2018-01-17  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/83864
	* expr.c (add_init_expr_to_sym): Do not dereference NULL pointer.

2018-01-17  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/83874
	* decl.c (add_init_expr_to_sym): Do not dereference NULL pointer.

2018-01-15  Louis Krupp  <louis.krupp@zoho.com>

	PR fortran/82257
	* interface.c (compare_rank): Don't try to retrieve CLASS_DATA
	from symbol marked unlimited polymorphic.
	* resolve.c (resolve_structure_cons): Likewise.
	* misc.c (gfc_typename): Don't dereference derived->components
	if it's NULL.

2018-01-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/54613
	* gfortran.h (gfc_check_f): Rename f4ml to f5ml.
	(gfc_logical_4_kind): New macro
	* intrinsic.h (gfc_simplify_minloc): Add a gfc_expr *argument.
	(gfc_simplify_maxloc): Likewise.
	(gfc_resolve_maxloc): Likewise.
	(gfc_resolve_minloc): Likewise.
	* check.c (gfc_check_minloc_maxloc): Add checking for "back"
	argument; also raise error if it is used (for now). Add it
	if it isn't present.
	* intrinsic.c (add_sym_4ml): Rename to
	(add_sym_5ml), adjust for extra argument.
	(add_functions): Add "back" constant. Adjust maxloc and minloc
	for back argument.
	* iresolve.c (gfc_resolve_maxloc): Add back argument. If back is
	not of gfc_logical_4_kind, convert.
	(gfc_resolve_minloc): Likewise.
	* simplify.c (gfc_simplify_minloc): Add back argument.
	(gfc_simplify_maxloc): Likewise.
	* trans-intinsic.c (gfc_conv_intrinsic_minmaxloc): Rename last
	argument to %VAL to ensure passing by value.
	(gfc_conv_intrinsic_function): Call gfc_conv_intrinsic_minmaxloc
	also for library calls.

2018-01-13  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/82007
	* resolve.c (resolve_transfer): Delete code looking for 'DT'
	format specifiers in format strings. Set formatted to true if a
	format string or format label is present.
	* trans-io.c (get_dtio_proc): Likewise. (transfer_expr): Fix
	whitespace.

2018-01-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/83744
	* dump-parse-tree.c (get_c_type_name): Remove extra line.
	Change for loop to use declaration in for loop. Handle BT_LOGICAL
	and BT_CHARACTER.
	(write_decl): Add where argument. Fix indentation. Replace
	assert with error message. Add typename to warning
	in comment.
	(write_type): Adjust locus to call of write_decl.
	(write_variable): Likewise.
	(write_proc): Likewise. Replace assert with error message.

2018-01-13  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/52162
	* trans-expr.c (gfc_trans_scalar_assign): Flag is_alloc_lhs if
	the rhs expression is neither an elemental nor a conversion
	function.

	PR fortran/83622
	* trans-array.c (is_pointer_array): Remove unconditional return
	of false for -fopenmp.

2018-01-13  Thomas Koenig  <tkoenig@gcc.gnu.org>
	<emsr@gcc.gnu.org>

	PR fortran/83803
	* dump-parse-tree.c (write_proc): Always emit closing parenthesis
	for functions.

2018-01-10  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/82367
	* resolve.c (resolve_allocate_expr): Check for NULL pointer.

2018-01-10  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/83093
	* resolve.c (resolve_charlen): Check the type of cl->length
	after resolution.

2018-01-10  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/83740
	* trans-array.c (gfc_trans_array_ctor_element): Fix formatting.

2018-01-10  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/83740
	* trans-array.c (gfc_trans_array_ctor_element): Convert RHS to the
	LHS type when assigning.

2018-01-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/83742
	* expr.c (gfc_is_simply_contiguous): Check for NULL pointer.

2018-01-08  Steven G. Kargl  <kargl@gcc.gnu.org>

	* match.c (gfc_match_allocate): Check for NULL pointer.

2018-01-08  Steven G. Kargl  <kargl@gcc.gnu.org>

	* expr.c (gfc_check_pointer_assign): Fix typo in comment.

2018-01-08  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83611
	* decl.c (gfc_get_pdt_instance): If parameterized arrays have
	an initializer, convert the kind parameters and add to the
	component if the instance.
	* trans-array.c (structure_alloc_comps): Add 'is_pdt_type' and
	use it with case COPY_ALLOC_COMP. Call 'duplicate_allocatable'
	for parameterized arrays. Clean up typos in comments. Convert
	parameterized array initializers and copy into the array.
	* trans-expr.c (gfc_trans_scalar_assign): Do a deep copy for
	parameterized types.
	*trans-stmt.c (trans_associate_var): Deallocate associate vars
	as necessary, when they are PDT function results for example.

	PR fortran/83731
	* trans-array.c (structure_alloc_comps): Only compare len parms
	when they are declared explicitly.

2018-01-06  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/50892
	* trans-expr.c (gfc_trans_pointer_assignment): fold_convert rhs to
	lhs type.

2018-01-05  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/78534
	PR fortran/66310
	* array.c (got_charlen): Use gfc_charlen_int_kind.
	* class.c (gfc_find_derived_vtab): Use gfc_size_kind instead of
	hardcoded kind.
	(find_intrinsic_vtab): Likewise.
	* decl.c (match_char_length): Use gfc_charlen_int_kind.
	(add_init_expr_to_sym): Use gfc_charlen_t and gfc_charlen_int_kind.
	(gfc_match_implicit): Use gfc_charlen_int_kind.
	* dump-parse-tree.c (show_char_const): Use gfc_charlen_t and size_t.
	(show_expr): Use HOST_WIDE_INT_PRINT_DEC.
	* expr.c (gfc_get_character_expr): Length parameter of type
	gfc_charlen_t.
	(gfc_get_int_expr): Value argument of type HOST_WIDE_INT.
	(gfc_extract_hwi): New function.
	(simplify_const_ref): Make string_len of type gfc_charlen_t.
	(gfc_simplify_expr): Use HOST_WIDE_INT for substring refs.
	* frontend-passes.c (optimize_trim): Use gfc_charlen_int_kind.
	* gfortran.h (gfc_mpz_get_hwi): New prototype.
	(gfc_mpz_set_hwi): Likewise.
	(gfc_charlen_t): New typedef.
	(gfc_expr): Use gfc_charlen_t for character lengths.
	(gfc_size_kind): New extern variable.
	(gfc_extract_hwi): New prototype.
	(gfc_get_character_expr): Use gfc_charlen_t for character length.
	(gfc_get_int_expr): Use HOST_WIDE_INT type for value argument.
	* gfortran.texi: Update description of hidden string length argument.
	* iresolve.c (check_charlen_present): Use gfc_charlen_int_kind.
	(gfc_resolve_char_achar): Likewise.
	(gfc_resolve_repeat): Pass string length directly without
	temporary, use gfc_charlen_int_kind.
	(gfc_resolve_transfer): Use gfc_charlen_int_kind.
	* match.c (select_intrinsic_set_tmp): Use HOST_WIDE_INT for charlen.
	* misc.c (gfc_mpz_get_hwi): New function.
	(gfc_mpz_set_hwi): New function.
	* module.c (atom_int): Change type from int to HOST_WIDE_INT.
	(parse_integer): Don't complain about large integers.
	(write_atom): Use HOST_WIDE_INT for integers.
	(mio_integer): Handle integer type mismatch.
	(mio_hwi): New function.
	(mio_intrinsic_op): Use HOST_WIDE_INT.
	(mio_array_ref): Likewise.
	(mio_expr): Likewise.
	* primary.c (match_substring): Use gfc_charlen_int_kind.
	* resolve.c (resolve_substring_charlen): Use gfc_charlen_int_kind.
	(resolve_character_operator): Likewise.
	(resolve_assoc_var): Likewise.
	(resolve_select_type): Use HOST_WIDE_INT for charlen, use snprintf.
	(resolve_charlen): Use mpz_sgn to determine sign.
	* simplify.c (gfc_simplify_repeat): Use HOST_WIDE_INT/gfc_charlen_t
	instead of long.
	* symbol.c (generate_isocbinding_symbol): Use gfc_charlen_int_kind.
	* target-memory.c (size_character): Length argument of type
	gfc_charlen_t.
	(gfc_encode_character): Likewise.
	(gfc_interpret_character): Use gfc_charlen_t.
	* target-memory.h (gfc_encode_character): Modify prototype.
	* trans-array.c (gfc_trans_array_ctor_element): Use existing type.
        (get_array_ctor_var_strlen): Use gfc_conv_mpz_to_tree_type.
	(trans_array_constructor): Use existing type.
	(get_array_charlen): Likewise.
	* trans-const.c (gfc_conv_mpz_to_tree_type): New function.
	* trans-const.h (gfc_conv_mpz_to_tree_type): New prototype.
	* trans-decl.c (gfc_trans_deferred_vars): Use existing type.
	(add_argument_checking): Likewise.
	* trans-expr.c (gfc_class_len_or_zero_get): Build const of type
	gfc_charlen_type_node.
	(gfc_conv_intrinsic_to_class): Use gfc_charlen_int_kind instead of
	4, fold_convert to correct type.
	(gfc_conv_class_to_class): Build const of type size_type_node for
	size.
	(gfc_copy_class_to_class): Likewise.
	(gfc_conv_string_length): Use same type in expression.
	(gfc_conv_substring): Likewise, use HOST_WIDE_INT for charlen.
	(gfc_conv_string_tmp): Make sure len is of the right type.
	(gfc_conv_concat_op): Use same type in expression.
	(gfc_conv_procedure_call): Likewise.
	(fill_with_spaces): Comment out memset() block due to spurious
	-Wstringop-overflow warnings.
	(gfc_trans_string_copy): Use gfc_charlen_type_node.
	(alloc_scalar_allocatable_for_subcomponent_assignment):
	fold_convert to right type.
	(gfc_trans_subcomponent_assign): Likewise.
	(trans_class_vptr_len_assignment): Build const of correct type.
	(gfc_trans_pointer_assignment): Likewise.
	(alloc_scalar_allocatable_for_assignment): fold_convert to right
	type in expr.
	(trans_class_assignment): Build const of correct type.
	* trans-intrinsic.c (gfc_conv_associated): Likewise.
	(gfc_conv_intrinsic_repeat): Do calculation in sizetype.
	* trans-io.c (gfc_build_io_library_fndecls): Use
	gfc_charlen_type_node for character lengths.
	(set_string): Convert to right type in assignment.
	* trans-stmt.c (gfc_trans_label_assign): Build const of
	gfc_charlen_type_node.
	(trans_associate_var): Likewise.
	(gfc_trans_character_select): Likewise.
	(gfc_trans_allocate): Likewise, don't typecast strlen result.
	(gfc_trans_deallocate): Don't typecast strlen result.
	* trans-types.c (gfc_size_kind): New variable.
	(gfc_init_types): Determine gfc_charlen_int_kind and gfc_size_kind
	from size_type_node.
	* trans-types.h: Fix comment.

2018-01-04  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/83683
	PR fortran/45689
	* check.c (gfc_check_eoshift): Check for string length and
	for conformance of boundary.
	* intrinsic.c (add_functions): Add gfc_simplify_eoshift.
	* intrinsic.h: Add prototype for gfc_simplify_eoshift.
	* simplify.c (gfc_simplify_eoshift): New function.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

	* trans-types.c (gfc_type_for_mode): Handle MODE_VECTOR_BOOL.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

	* trans-types.c (gfc_type_for_mode): Check valid_vector_subparts_p.

2018-01-03  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/83664
	* check.c (gfc_check_eoshift): Error for missing boundary if array
	is not one of the standard types.

2018-01-03  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.

2017-01-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/45689
	* intrinsic.c (add_function): Add gfc_simplify_maxloc and
	gfc_simplify_minloc to maxloc and minloc, respectively.
	* intrinsic.h: Add prototypes for gfc_simplify_minloc
	and gfc_simplify_maxloc.
	* simplify.c (min_max_chose): Adjust prototype.  Modify function
	to have a return value which indicates if the extremum was found.
	(is_constant_array_expr): Fix typo in comment.
	(simplify_minmaxloc_to_scalar): New function.
	(simplify_minmaxloc_nodim): New function.
	(new_array): New function.
	(simplify_minmaxloc_to_array): New function.
	(gfc_simplify_minmaxloc): New function.
	(simplify_minloc): New function.
	(simplify_maxloc): New function.

2018-01-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/45689
	PR fortran/83650
	* simplify.c (gfc_simplify_cshift): Re-implement to allow full
	range of arguments.

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

	PR fortran/83076
	* resolve.c (resolve_fl_derived0): Add caf_token fields for
	allocatable and pointer scalars, when -fcoarray selected.
	* trans-types.c (gfc_copy_dt_decls_ifequal): Copy the token
	field as well as the backend_decl.
	(gfc_get_derived_type): Flag GFC_FCOARRAY_LIB for module
	derived types that are not vtypes. Components with caf_token
	attribute are pvoid types. For a component requiring it, find
	the caf_token field and have the component token field point to
	its backend_decl.

	PR fortran/83319
	*trans-types.c (gfc_get_array_descriptor_base): Add the token
	field to the descriptor even when codimen not set.

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