2023-12-28  Rimvydas Jasinskas  <rimvydas.jas@gmail.com>

	PR fortran/81615
	* invoke.texi: Add Developer Options section.  Move '-fdump-*'
	to it.  Add small examples about changed '-save-temps' behavior.

2023-12-20  Rimvydas Jasinskas  <rimvydas.jas@gmail.com>

	PR fortran/81615
	* lang-specs.h (F951_CPP_OPTIONS): Do not hardcode ".f90" extension
	(F951_CPP_EXTENSION): Use .fi/.fii for fixed/free form sources
	* options.cc (form_from_filename): Handle the new extensions

2023-12-19  Sandra Loosemore  <sandra@codesourcery.com>

	* gfortran.h: Include omp-selectors.h.
	(enum gfc_omp_trait_property_kind): Delete, and replace all
	references with equivalent omp_tp_type enumerators.
	(struct gfc_omp_trait_property): Update for omp_tp_type.
	(struct gfc_omp_selector): Replace string name with new enumerator.
	(struct gfc_omp_set_selector): Likewise.
	* openmp.cc (gfc_free_omp_trait_property_list): Update for
	omp_tp_type.
	(omp_construct_selectors): Delete.
	(omp_device_selectors): Delete.
	(omp_implementation_selectors): Delete.
	(omp_user_selectors): Delete.
	(gfc_ignore_trait_property_extension): New.
	(gfc_ignore_trait_property_extension_list): New.
	(gfc_match_omp_selector): Adjust for new representations and simplify
	dispatch logic.  Uniformly warn instead of sometimes error when an
	unknown selector is found.
	(gfc_match_omp_context_selector): Adjust for new representations.
	Adjust error messages for extraneous/incorrect score.
	(gfc_match_omp_context_selector_specification): Likewise.
	* trans-openmp.cc (gfc_trans_omp_declare_variant): Adjust for
	new representations.

2023-12-19  Sandra Loosemore  <sandra@codesourcery.com>

	* trans-openmp.cc (gfc_trans_omp_declare_varaint): Adjust for
	new namelist property representation.

2023-12-19  Sandra Loosemore  <sandra@codesourcery.com>

	* trans-openmp.cc (gfc_trans_omp_declare_variant): Use new
	constructors.

2023-12-18  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/96580
	* check.cc (array_size_check): New helper function.
	(gfc_check_date_and_time): Use it for checking minimum size of
	VALUES argument.  Update kind check to Fortran 2018.
	* intrinsic.texi: Fix documentation of DATE_AND_TIME.

2023-12-17  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/97592
	* trans-expr.cc (gfc_conv_procedure_call): For a contiguous dummy
	with the TARGET attribute, the effective argument may still be
	contiguous even if the actual argument is not simply-contiguous.
	Allow packing to be decided at runtime by _gfortran_internal_pack.

2023-12-16  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/112459
	* trans-array.cc (gfc_trans_array_constructor_value): Replace
	gfc_notification_std with explicit logical expression that
	selects F2003/2008 and excludes -std=default/gnu.
	* trans-expr.cc (gfc_conv_expr): Ditto.

2023-12-16  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/112834
	PR fortran/111853
	* match.cc (build_associate_name): Fix whitespace issues.
	(select_type_set_tmp): If the selector is of unknown type, go
	the SELECT TYPE selector to see if this is a function and, if
	the result is available, use its typespec.
	* parse.cc (parse_associate): Again, use the function result if
	the type of the selector result is unknown.
	* trans-stmt.cc (trans_associate_var): The expression has to be
	of type class, for class_target to be true. Convert and fix
	class functions. Pass the fixed expression.
	* resolve.cc (gfc_expression_rank): Avoid null dereference.

2023-12-15  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/112783
	* intrinsic.texi: Fix where no COMPLEX allowed.
	* invoke.texi: Clarify -fdev-math.

2023-12-14  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/112873
	* gfortran.texi: Update to reflect the changes.
	* intrinsic.cc (add_functions): Update the standard that the
	various  degree trigonometric functions have been described in.
	(gfc_check_intrinsic_standard): Add an error string for F2023.
	* intrinsic.texi: Update accordingly.

2023-12-13  Julian Brown  <julian@codesourcery.com>

	* dependency.cc (gfc_omp_expr_prefix_same): New function.
	* dependency.h (gfc_omp_expr_prefix_same): Add prototype.
	* gfortran.h (gfc_omp_namelist): Add "duplicate_of" field to "u2"
	union.
	* trans-openmp.cc (dependency.h): Include.
	(gfc_trans_omp_array_section): Adjust mapping node arrangement for
	array descriptors.  Use GOMP_MAP_TO_PSET or
	GOMP_MAP_RELEASE/GOMP_MAP_DELETE with the OMP_CLAUSE_RELEASE_DESCRIPTOR
	flag set.
	(gfc_symbol_rooted_namelist): New function.
	(gfc_trans_omp_clauses): Check subcomponent and subarray/element
	accesses elsewhere in the clause list for pointers to derived types or
	array descriptors, and adjust or drop mapping nodes appropriately.
	Adjust for changes to mapping node arrangement.
	(gfc_trans_oacc_executable_directive): Pass code op through.

2023-12-13  Julian Brown  <julian@codesourcery.com>

	* trans-openmp.cc (gfc_trans_omp_array_section): Add OPENMP parameter.
	Use GOMP_MAP_ATTACH_DETACH instead of GOMP_MAP_ALWAYS_POINTER for
	derived type components.
	(gfc_trans_omp_clauses): Update calls to gfc_trans_omp_array_section.

2023-12-11  Thomas Schwinge  <thomas@codesourcery.com>

	* trans-openmp.cc (gfc_omp_call_is_alloc): Resolve ICE.

2023-12-11  Tobias Burnus  <tobias@codesourcery.com>

	* gfortran.h (enum gfc_omp_requires_kind): Add
	OMP_REQ_ATOMIC_MEM_ORDER_ACQUIRE and OMP_REQ_ATOMIC_MEM_ORDER_RELEASE.
	(gfc_namespace): Add a 7th bit to omp_requires.
	* module.cc (enum ab_attribute): Add AB_OMP_REQ_MEM_ORDER_ACQUIRE
	and AB_OMP_REQ_MEM_ORDER_RELEASE
	(mio_symbol_attribute): Handle it.
	* openmp.cc (gfc_omp_requires_add_clause): Update for acquire/release.
	(gfc_match_omp_requires): Likewise.
	(gfc_match_omp_atomic): Handle them for atomic_default_mem_order.
	* parse.cc: Likewise.

2023-12-11  Tobias Burnus  <tobias@codesourcery.com>

	* trans-openmp.cc (gfc_omp_call_add_alloc,
	gfc_omp_call_is_alloc): Set 'fn spec'.

2023-12-10  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/111503
	* expr.cc (gfc_is_simply_contiguous): Determine characteristics of
	NULL() from optional MOLD argument, otherwise treat as contiguous.
	* primary.cc (gfc_variable_attr): Derive attributes of NULL(MOLD)
	from MOLD.

2023-12-10  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/105543
	* resolve.cc (resolve_symbol): For a CLASS-valued function having a
	RESULT clause, ensure that attr.class_ok is set for its symbol as
	well as for its resolved result variable.

2023-12-08  Tobias Burnus  <tobias@codesourcery.com>

	* dump-parse-tree.cc (show_omp_node): Handle EXEC_OMP_ALLOCATE
	and EXEC_OMP_ALLOCATORS.
	* f95-lang.cc (ATTR_ALLOC_WARN_UNUSED_RESULT_SIZE_2_NOTHROW_LIST):
	Add 'ECF_LEAF | ECF_MALLOC' to existing 'ECF_NOTHROW'.
	(ATTR_ALLOC_WARN_UNUSED_RESULT_SIZE_2_NOTHROW_LEAF_LIST): Define.
	* gfortran.h (gfc_omp_clauses): Add contained_in_target_construct.
	* invoke.texi (-fopenacc, -fopenmp): Update based on C version.
	(-fopenmp-simd): New, based on C version.
	(-fopenmp-allocators): New.
	* lang.opt (fopenmp-allocators): Add.
	* openmp.cc (resolve_omp_clauses): For allocators/allocate directive,
	add target and no dynamic_allocators diagnostic and more invalid
	diagnostic.
	* parse.cc (decode_omp_directive): Set contains_teams_construct.
	* trans-array.h (gfc_array_allocate): Update prototype.
	(gfc_conv_descriptor_version): New prototype.
	* trans-decl.cc (gfc_init_default_dt): Fix comment.
	* trans-array.cc (gfc_conv_descriptor_version): New.
	(gfc_array_allocate): Support GOMP_alloc allocation.
	(gfc_alloc_allocatable_for_assignment, structure_alloc_comps):
	Handle GOMP_free/omp_realloc as needed.
	* trans-expr.cc (gfc_conv_procedure_call): Likewise.
	(alloc_scalar_allocatable_for_assignment): Likewise.
	* trans-intrinsic.cc (conv_intrinsic_move_alloc): Likewise.
	* trans-openmp.cc (gfc_trans_omp_allocators,
	gfc_trans_omp_directive): Handle allocators/allocate directive.
	(gfc_omp_call_add_alloc, gfc_omp_call_is_alloc): New.
	* trans-stmt.h (gfc_trans_allocate): Update prototype.
	* trans-stmt.cc (gfc_trans_allocate): Support GOMP_alloc.
	* trans-types.cc (gfc_get_dtype_rank_type): Set version field.
	* trans.cc (gfc_allocate_using_malloc, gfc_allocate_allocatable):
	Update to handle GOMP_alloc.
	(gfc_deallocate_with_status, gfc_deallocate_scalar_with_status):
	Handle GOMP_free.
	(trans_code): Update call.
	* trans.h (gfc_allocate_allocatable, gfc_allocate_using_malloc):
	Update prototype.
	(gfc_omp_call_add_alloc, gfc_omp_call_is_alloc): New prototype.
	* types.def (BT_FN_PTR_PTR_SIZE_PTRMODE_PTRMODE): New.

2023-12-06  David Malcolm  <dmalcolm@redhat.com>

	* error.cc (gfc_diagnostic_starter): Make diagnostic_info param
	const.
	(gfc_diagnostic_finalizer): Likewise.

2023-12-05  Harald Anlauf  <anlauf@gmx.de>
	    Tobias Burnus   <tobias@codesourcery.com>

	PR fortran/100988
	* gfortran.h (IS_PROC_POINTER): New macro.
	* trans-types.cc (gfc_sym_type): Use macro in determination if the
	restrict qualifier can be used for a dummy variable.  Fix logic to
	allow the restrict qualifier also for optional arguments, and to
	not apply it to pointer or proc_pointer arguments.

2023-12-05  Richard Sandiford  <richard.sandiford@arm.com>

	* f95-lang.cc (gfc_gnu_attribute_table): Add extra braces to work
	around PR 16333 in older compilers.

2023-12-02  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/93762
	PR fortran/100651
	* trans-array.cc (gfc_trans_deferred_array): Add presence check
	for optional deferred-length character dummy arguments.
	* trans-expr.cc (gfc_conv_missing_dummy): The character length for
	deferred-length dummy arguments is passed by reference, so that
	its value can be returned.  Adjust handling for optional dummies.

2023-12-02  Richard Sandiford  <richard.sandiford@arm.com>

	* f95-lang.cc: Include attribs.h.
	(gfc_attribute_table): Change to an array of scoped_attribute_specs
	pointers, using...
	(gfc_gnu_attributes, gfc_gnu_attribute_table): ...these new globals.

2023-12-01  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/112772
	* trans-expr.cc (gfc_conv_class_to_class): Make copy-out conditional
	on the presence of an OPTIONAL CLASS argument passed to an OPTIONAL
	CLASS dummy.

2023-11-30  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/112764
	* primary.cc (gfc_variable_attr): Set TARGET attribute of associating
	entity dependent on TARGET or POINTER attribute of selector.

2023-11-28  Andrew Jenner  <andrew@codesourcery.com>
	    Tobias Burnus   <tobias@codesourcery.com>

	PR fortran/110415
	* trans-expr.cc (trans_class_vptr_len_assignment): Add
	from_vptrp parameter. Populate it. Don't check for DECL_P
	when deciding whether to create temporary.
	(trans_class_pointer_fcn, gfc_trans_pointer_assignment): Add
	NULL argument to trans_class_vptr_len_assignment calls.
	(trans_class_assignment): Get rhs_vptr from
	trans_class_vptr_len_assignment and use it for determining size
	for allocation/reallocation. Use return value from realloc.

2023-11-26  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/111880
	* resolve.cc (resolve_common_vars): Do not call gfc_add_in_common
	for symbols that are USE associated or used in a submodule.

2023-11-24  Tobias Burnus  <tobias@codesourcery.com>

	* lang.opt (Wopenmp): Add, enabled by dafault and documented in C.
	* openmp.cc (gfc_match_omp_declare_target, resolve_positive_int_expr,
	resolve_nonnegative_int_expr, resolve_omp_clauses,
	gfc_resolve_omp_do_blocks): Use OPT_Wopenmp with gfc_warning{,_now}.

2023-11-24  Tobias Burnus  <tobias@codesourcery.com>

	* openmp.cc (gfc_match_omp_depobj): Accept optionally an argument
	to the destroy clause.

2023-11-23  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/112609
	* check.cc (gfc_check_system_clock): Add checks on integer arguments
	to SYSTEM_CLOCK specific to F2023.
	* error.cc (notify_std_msg): Adjust to handle new features added
	in F2023.
	* gfortran.texi (_gfortran_set_options): Document GFC_STD_F2023_DEL,
	remove obsolete option GFC_STD_F2008_TS and fix enumeration values.
	* libgfortran.h (GFC_STD_F2023_DEL): Add and use in GFC_STD_OPT_F23.
	* options.cc (set_default_std_flags): Add GFC_STD_F2023_DEL.

2023-11-17  Tobias Burnus  <tobias@codesourcery.com>

	* gfortran.texi (_gfortran_set_options): Document GFC_STD_F2023.
	* invoke.texi (std,pedantic,Wampersand,Wtabs): Add -std=2023.
	* lang.opt (std=f2023): Add.
	* libgfortran.h (GFC_STD_F2023, GFC_STD_OPT_F23): Add.
	* options.cc (set_default_std_flags): Add GFC_STD_F2023.
	(gfc_init_options): Set max_continue_free to 1,000,000.
	(gfc_post_options): Set flag_free_line_length if unset.
	(gfc_handle_option): Add OPT_std_f2023, set max_continue_free = 255
	for -std=f2003, f2008 and f2018.

2023-11-14  David Malcolm  <dmalcolm@redhat.com>

	* error.cc (gfc_diagnostics_init): Use diagnostic_start_span.

2023-11-07  Joseph Myers  <joseph@codesourcery.com>

	* gfortran.h (gfc_real_info): Refer to C23 instead of C2X in
	comment.

2023-11-06  Martin Jambor  <mjambor@suse.cz>

	* trans-decl.cc (gfc_build_builtin_function_decls): Fix fnspec of
	generate_error.

2023-11-04  David Malcolm  <dmalcolm@redhat.com>

	* cpp.cc: Update for changes to diagnostic_context.
	* error.cc: Likewise.
	* options.cc: Likewise.

2023-11-03  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/97245
	* match.cc (gfc_match_call): If a procedure pointer has already been
	resolved, do not create a new symbol in a procedure reference of
	the same name shadowing the first one if it is host-associated.

2023-11-03  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/92887
	* trans-expr.cc (conv_cond_temp): Helper function for creation of a
	conditional temporary.
	(gfc_conv_procedure_call): Handle passing of allocatable or pointer
	actual argument to dummy with OPTIONAL + VALUE attribute.  Actual
	arguments that are not allocated or associated are treated as not
	present.

2023-11-03  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/98498
	* interface.cc (upoly_ok): Defined operators using unlimited
	polymorphic formal arguments must not override the intrinsic
	operator use.

2023-11-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/112316
	* parse.cc (parse_associate): Remove condition that caused this
	regression.

2023-10-30  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/104555
	* resolve.cc (resolve_select_type): If the selector expression
	has no class component references and the expression is a
	derived type, copy the typespec of the symbol to that of the
	expression.

2023-10-27  Harald Anlauf  <anlauf@gmx.de>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/104649
	* decl.cc (gfc_match_formal_arglist): Handle conflicting declarations
	of a MODULE PROCEDURE when one of the declarations is an alternate
	return.

2023-10-27  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/104625
	* expr.cc (gfc_check_vardef_context): Check that the target
	does have a vector index before emitting the specific error.
	* match.cc (copy_ts_from_selector_to_associate): Ensure that
	class valued operator expressions set the selector rank and
	use the rank to provide the associate variable with an
	appropriate array spec.
	* resolve.cc (resolve_operator): Reduce stacked parentheses to
	a single pair.
	(fixup_array_ref): Extract selector symbol from parentheses.

2023-10-26  Paul-Antoine Arras  <pa@codesourcery.com>
	    Tobias Burnus  <tobias@codesourcery.com>

	* interface.cc (gfc_compare_types): Return true if one type is C_PTR
	and the other is a compatible INTEGER(8).
	* misc.cc (gfc_typename): Handle the case where an INTEGER(8) actually
	holds a TYPE(C_PTR).

2023-10-25  Thomas Schwinge  <thomas@codesourcery.com>

	* openmp.cc (omp_mask2): Split 'OMP_CLAUSE_HOST_SELF' into
	'OMP_CLAUSE_SELF', 'OMP_CLAUSE_HOST'.
	(gfc_match_omp_clauses, OACC_UPDATE_CLAUSES): Adjust.

2023-10-25  Chung-Lin Tang  <cltang@codesourcery.com>

	* gfortran.h (typedef struct gfc_omp_clauses): Add self_expr field.
	* openmp.cc (enum omp_mask2): Add OMP_CLAUSE_SELF.
	(gfc_match_omp_clauses): Add handling for OMP_CLAUSE_SELF.
	(OACC_PARALLEL_CLAUSES): Add OMP_CLAUSE_SELF.
	(OACC_KERNELS_CLAUSES): Likewise.
	(OACC_SERIAL_CLAUSES): Likewise.
	(resolve_omp_clauses): Add handling for omp_clauses->self_expr.
	* trans-openmp.cc (gfc_trans_omp_clauses): Add handling of
	clauses->self_expr and building of OMP_CLAUSE_SELF tree clause.
	(gfc_split_omp_clauses): Add handling of self_expr field copy.

2023-10-25  Thomas Schwinge  <thomas@codesourcery.com>

	* dump-parse-tree.cc (show_omp_clauses): Group handling of 'if'
	clause without and with modifier.
	* frontend-passes.cc (gfc_code_walker): Likewise.
	* gfortran.h (gfc_omp_clauses): Likewise.
	* openmp.cc (gfc_free_omp_clauses): Likewise.

2023-10-18  Tobias Burnus  <tobias@codesourcery.com>

	* intrinsic.texi (signal): Add 'intrinsic :: signal, sleep' to
	the example to make it safer.

2023-10-17  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/111837
	* frontend-passes.cc (traverse_io_block): Dependency check of loop
	nest shall be triangular, not banded.

2023-10-17  Tobias Burnus  <tobias@codesourcery.com>

	* intrinsic.texi (signal): Mention that the argument
	passed to the signal handler procedure is passed by reference.
	Extend example.

2023-10-15  Tobias Burnus  <tobias@codesourcery.com>

	* scanner.cc (skip_free_comments, skip_fixed_comments): Remove
	leftover 'OpenACC' from comments about OpenMP's conditional
	compilation sentinel.

2023-10-14  Tobias Burnus  <tobias@codesourcery.com>

	* gfortran.h (ext_attr_t): Add omp_allocate flag.
	* match.cc (gfc_free_omp_namelist): Void deleting same
	u2.allocator multiple times now that a sequence can use
	the same one.
	* openmp.cc (gfc_match_omp_clauses, gfc_match_omp_allocate): Use
	same allocator expr multiple times.
	(is_predefined_allocator): Make static.
	(gfc_resolve_omp_allocate): Update/extend restriction checks;
	remove sorry message.
	(resolve_omp_clauses): Reject corarrays in allocate/allocators
	directive.
	* parse.cc (check_omp_allocate_stmt): Permit procedure pointers
	here (rejected later) for less misleading diagnostic.
	* trans-array.cc (gfc_trans_auto_array_allocation): Propagate
	size for GOMP_alloc and location to which it should be added to.
	* trans-decl.cc (gfc_trans_deferred_vars): Handle 'omp allocate'
	for stack variables; sorry for static variables/common blocks.
	* trans-openmp.cc (gfc_trans_omp_clauses): Evaluate 'allocate'
	clause's allocator only once; fix adding expressions to the
	block.
	(gfc_trans_omp_single): Pass a block to gfc_trans_omp_clauses.

2023-10-13  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/104351
	* decl.cc (get_proc_name): Extend name conflict detection between
	internal procedure and previous declaration also to derived type.

2023-10-13  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/110957
	* invoke.texi: Update documentation to reflect '-ffpe-trap=none'.
	* options.cc (gfc_handle_fpe_option): Fix mixup up of error messages
	for options -ffpe-trap and -ffpe-summary.  Accept '-ffpe-trap=none'
	to clear FPU traps previously set on command line.

2023-10-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/111779
	* trans-expr.cc (gfc_trans_assignment_1): Initialize
	lhs_caf_attr and rhs_caf_attr codimension flag to avoid
	false positive -Wuninitialized.

2023-10-12  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/67740
	* trans-expr.cc (gfc_trans_pointer_assignment): Set the hidden
	string length component for pointer assignment to character
	pointer components.

2023-10-08  Tobias Burnus  <tobias@codesourcery.com>

	* parse.cc (parse_omp_structured_block): Make the user code end
	up inside of BLOCK construct for strictly structured blocks;
	fix fallout for 'section' and 'teams'.
	* openmp.cc (resolve_omp_target): Fix changed BLOCK handling
	for teams in target checking.

2023-10-04  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/37336
	PR fortran/111674
	* trans-expr.cc (gfc_trans_scalar_assign): Finalize components
	on deallocation if derived type is not finalizable.

2023-10-03  David Malcolm  <dmalcolm@redhat.com>

	* error.cc (gfc_format_decoder): Update for "m_" prefixes to
	text_info fields.

2023-10-02  David Malcolm  <dmalcolm@redhat.com>

	* error.cc (gfc_diagnostics_init): Update for change to start_span.

2023-10-02  David Malcolm  <dmalcolm@redhat.com>

	* error.cc (gfc_diagnostic_starter): Update for reorganization of
	source-printing fields of diagnostic_context.
	(gfc_diagnostics_init): Likewise.
	(gfc_diagnostics_finish): Likewise.

2023-09-29  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/37336
	* trans-array.cc (structure_alloc_comps): Deref coarray.
	(gfc_trans_deferred_array): Add freeing of components after
	check for allocated coarray.

2023-09-24  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/68155
	PR fortran/111271
	* decl.cc (fix_initializer_charlen): New function broken out of
	add_init_expr_to_sym.
	(add_init_expr_to_sym, build_struct): Call the new function.
	* trans-expr.cc (gfc_conv_intrinsic_to_class): Remove repeated
	condition.

2023-09-23  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95710
	* class.cc (gfc_build_class_symbol): Do not try to build class
	container for invalid typespec.
	* resolve.cc (resolve_fl_var_and_proc): Prevent NULL pointer
	dereference.
	(resolve_symbol): Likewise.

2023-09-19  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/70231
	* trans-array.cc (trans_array_constructor): In absence of a typespec,
	use string length determined by get_array_ctor_strlen() to reasonably
	initialize auxiliary variable for bounds-checking.

2023-09-15  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/30802
	* trans-array.cc (trans_array_bound_check): Add optional argument
	COMPNAME for explicit specification of array component name.
	(array_bound_check_elemental): Helper function for generating
	bounds-checking code for elemental dimensions.
	(gfc_conv_expr_descriptor): Use bounds-checking also for elemental
	dimensions, i.e. those not handled by the scalarizer.

2023-09-15  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/108957
	* gfortran.h (gfc_symbol): Add comment documenting reference counting.
	* parse.cc (parse_interface): Remove reference count incrementation.

2023-09-12  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/110996
	* gfortran.h (gfc_release_symbol): Set return type to bool.
	* symbol.cc (gfc_release_symbol): Ditto.  Return whether symbol was
	freed.
	(delete_symbol_from_ns): New, outline code from...
	(gfc_restore_last_undo_checkpoint): ... here.  Delete new symbols
	from two more namespaces.

2023-09-09  Mikael Morin  <mikael@gcc.gnu.org>

	* bbt.cc (delete_treap): Add argument REMOVED, set it to the removed
	element from the tree.  Change NULL to nullptr.
	(gfc_delete_bbt): Return the removed element from the tree.
	* gfortran.h (gfc_delete_symtree): Remove prototype.
	(gfc_delete_bbt): Set return type to pointer.
	* symbol.cc (gfc_delete_symtree): Make static.  Get the element to be
	freed from the result of gfc_delete_bbt.  Remove the preliminary walk to
	get it.

2023-09-01  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/31059
	* trans-array.cc (gfc_conv_ss_startstride): For array bounds checking,
	consider also array constructors in expressions, and use their shape.

2023-08-31  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	* gfortran.texi: Likewise.

2023-08-30  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/48776
	* gfortran.h (gfc_drop_interface_elements_before): New prototype.
	(gfc_current_interface_head): Return a reference to the pointer.
	* interface.cc (gfc_current_interface_head): Ditto.
	(free_interface_elements_until): New function, generalizing
	gfc_free_interface.
	(gfc_free_interface): Use free_interface_elements_until.
	(gfc_drop_interface_elements_before): New function.
	* parse.cc
	(current_interface_ptr, previous_interface_head): New static variables.
	(current_interface_valid_p, get_current_interface_ptr): New functions.
	(decode_statement): Initialize previous_interface_head.
	(reject_statement): Restore current interface pointer to point to
	previous_interface_head.

2023-08-26  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/92586
	* trans-expr.cc (gfc_trans_arrayfunc_assign): Supply a missing
	dereference for the call to gfc_deallocate_alloc_comp_no_caf.

2023-08-25  Sandra Loosemore  <sandra@codesourcery.com>

	* gfortran.h (struct gfc_namespace): Add omp_structured_block bit.
	* openmp.cc: Include omp-api.h.
	(resolve_omp_clauses): Consolidate inscan reduction clause conflict
	checking here.
	(find_nested_loop_in_chain): New.
	(find_nested_loop_in_block): New.
	(gfc_resolve_omp_do_blocks): Set omp_current_do_collapse properly.
	Handle imperfectly-nested loops when looking for nested omp scan.
	Refactor to move inscan reduction clause conflict checking to
	resolve_omp_clauses.
	(gfc_resolve_do_iterator): Handle imperfectly-nested loops.
	(struct icode_error_state): New.
	(icode_code_error_callback): New.
	(icode_expr_error_callback): New.
	(diagnose_intervening_code_errors_1): New.
	(diagnose_intervening_code_errors): New.
	(make_structured_block): New.
	(restructure_intervening_code): New.
	(is_outer_iteration_variable): Do not assume loops are perfectly
	nested.
	(check_nested_loop_in_chain): New.
	(check_nested_loop_in_block_state): New.
	(check_nested_loop_in_block_symbol): New.
	(check_nested_loop_in_block): New.
	(expr_uses_intervening_var): New.
	(is_intervening_var): New.
	(expr_is_invariant): Do not assume loops are perfectly nested.
	(resolve_omp_do): Handle imperfectly-nested loops.
	* trans-stmt.cc (gfc_trans_block_construct): Generate
	OMP_STRUCTURED_BLOCK if magic bit is set on block namespace.

2023-08-25  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/35095
	* data.cc (get_array_index): Add bounds-checking code and return error
	status.  Overindexing will be allowed as an extension for -std=legacy
	and generate an error in standard-conforming mode.
	(gfc_assign_data_value): Use error status from get_array_index for
	graceful error recovery.

2023-08-25  Uros Bizjak  <ubizjak@gmail.com>

	* match.cc (gfc_match_equivalence): Rename TRUE/FALSE to true/false.
	* module.cc (check_access): Ditto.
	* primary.cc (match_real_constant): Ditto.
	* trans-array.cc (gfc_trans_allocate_array_storage): Ditto.
	(get_array_ctor_strlen): Ditto.
	* trans-common.cc (find_equivalence): Ditto.
	(add_equivalences): Ditto.

2023-08-23  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/32986
	* resolve.cc (is_non_constant_shape_array): Add forward declaration.
	(resolve_common_vars): Diagnose automatic array object in COMMON.
	(resolve_symbol): Prevent confusing follow-on error.

2023-08-22  Tobias Burnus  <tobias@codesourcery.com>

	* gfortran.h (enum gfc_omp_defaultmap_category):
	Add OMP_DEFAULTMAP_CAT_ALL.
	* openmp.cc (gfc_match_omp_clauses): Parse
	'all' as category.
	* trans-openmp.cc (gfc_trans_omp_clauses): Handle it.

2023-08-22  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/49588
	* data.cc (gfc_advance_section): Derive next index set and next offset
	into DATA variable also for array references using vector sections.
	Use auxiliary array to keep track of offsets into indexing vectors.
	(gfc_get_section_index): Set up initial indices also for DATA variables
	with array references using vector sections.
	* data.h (gfc_get_section_index): Adjust prototype.
	(gfc_advance_section): Likewise.
	* resolve.cc (check_data_variable): Pass vector offsets.

2023-08-16  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/110360
	* trans-expr.cc (conv_scalar_char_value): Use gfc_replace_expr to
	avoid leaking replaced gfc_expr.

2023-08-15  Martin Jambor  <mjambor@suse.cz>
	    Harald Anlauf  <anlauf@gmx.de>

	PR fortran/110677
	* resolve.cc (resolve_structure_cons): Check comp->ts is character
	type before accessing stuff through comp->ts.u.cl.

2023-08-15  Chung-Lin Tang  <cltang@codesourcery.com>
	    Thomas Schwinge  <thomas@codesourcery.com>

	* openmp.cc (OACC_DATA_CLAUSES): Add OMP_CLAUSE_DEFAULT.

2023-08-14  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/110360
	PR fortran/110419
	* trans-types.cc (gfc_sym_type): Use a bare character type for length
	one value character dummy arguments.
	* trans-expr.cc (gfc_conv_string_parameter): Handle single character
	case.
	(gfc_conv_procedure_call): Don't exclude interoperable kinds
	from single character handling.  For single character dummy arguments,
	extend the existing handling of non-constant expressions to constant
	expressions.

2023-08-14  Mikael Morin  <mikael@gcc.gnu.org>

	* gfortran.h (gfc_length_one_character_type_p): New inline
	function.
	* check.cc (is_c_interoperable): Use
	gfc_length_one_character_type_p.
	* decl.cc (verify_bind_c_sym): Same.
	* trans-expr.cc (gfc_conv_procedure_call): Same.

2023-08-09  Steve Kargl  <sgk@troutmask.apl.washington.edu>

	PR fortran/109684
	* resolve.cc (resolve_types): Exclude contained procedures with
	the artificial attribute from test for pureness.

2023-07-31  Chung-Lin Tang  <cltang@codesourcery.com>

	* openmp.cc (resolve_omp_clauses): Add checking requiring
	OpenACC host_data construct to have an use_device clause.

2023-07-28  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/110825
	* gfortran.texi: Clarify argument passing convention.
	* trans-expr.cc (gfc_conv_procedure_call): Do not pass the character
	length as hidden argument when the declared dummy argument is
	assumed-type.

2023-07-27  Tobias Burnus  <tobias@codesourcery.com>

	* openmp.cc (resolve_omp_target): Minor cleanup.
	* parse.cc (decode_omp_directive): Find TARGET statement
	also higher in the stack.

2023-07-26  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/68569
	* resolve.cc (check_data_variable): Do not accept strings with
	deferred length or non-constant length in a DATA statement.
	Reject also substrings of string variables of non-constant length.

2023-07-25  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/110725
	PR middle-end/71065
	* gfortran.h (gfc_omp_clauses): Add target_first_st_is_teams.
	* parse.cc (parse_omp_structured_block): Set it if the first
	statement in the structured block of a TARGET is TEAMS or
	a combined/composite starting with TEAMS.
	* openmp.cc (resolve_omp_target): Also show an error for
	contains_teams_construct without target_first_st_is_teams.

2023-07-24  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/110725
	PR middle-end/71065
	* gfortran.h (gfc_omp_clauses): Add contains_teams_construct.
	* openmp.cc (resolve_omp_target): New; check for teams nesting.
	(gfc_resolve_omp_directive): Call it.
	* parse.cc (decode_omp_directive): Set contains_teams_construct
	on enclosing ST_OMP_TARGET.

2023-07-20  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	* trans-intrinsic.cc (conv_intrinsic_ieee_comparison): Only
	define it once.

2023-07-20  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	* f95-lang.cc (gfc_init_builtin_functions): Add __builtin_iseqsig.
	* trans-intrinsic.cc (conv_intrinsic_ieee_comparison): New
	function.
	(gfc_conv_ieee_arithmetic_function): Handle IEEE comparisons.

2023-07-19  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/107424
	* trans-openmp.cc (gfc_nonrect_loop_expr): Accept all
	constant loop steps.
	(gfc_trans_omp_do): Likewise; use sign to determine
	loop direction.

2023-07-17  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95947
	PR fortran/110658
	* trans-expr.cc (gfc_conv_procedure_call): For intrinsic procedures
	whose result characteristics depends on the first argument and which
	can be of type character, the character length will not be deferred.

2023-07-17  Tobias Burnus  <tobias@codesoucery.com>
	    Chung-Lin Tang  <cltang@codesourcery.com>

	* dump-parse-tree.cc (show_omp_namelist, show_omp_clauses): Dump
	uses_allocators clause.
	* gfortran.h (gfc_free_omp_namelist): Add memspace_sym to u union
	and traits_sym to u2 union.
	(OMP_LIST_USES_ALLOCATORS): New enum value.
	(gfc_free_omp_namelist): Add 'bool free_mem_traits_space' arg.
	* match.cc (gfc_free_omp_namelist): Likewise.
	* openmp.cc (gfc_free_omp_clauses, gfc_match_omp_variable_list,
	gfc_match_omp_to_link, gfc_match_omp_doacross_sink,
	gfc_match_omp_clause_reduction, gfc_match_omp_allocate,
	gfc_match_omp_flush): Update call.
	(gfc_match_omp_clauses): Likewise. Parse uses_allocators clause.
	(gfc_match_omp_clause_uses_allocators): New.
	(enum omp_mask2): Add new OMP_CLAUSE_USES_ALLOCATORS.
	(OMP_TARGET_CLAUSES): Accept it.
	(resolve_omp_clauses): Resolve uses_allocators clause
	* st.cc (gfc_free_statement): Update gfc_free_omp_namelist call.
	* trans-openmp.cc (gfc_trans_omp_clauses): Handle
	OMP_LIST_USES_ALLOCATORS; fail with sorry unless predefined allocator.
	(gfc_split_omp_clauses): Handle uses_allocators.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/110618
	* trans.h (gfc_deallocate_with_status): Add class container
	argument.
	(gfc_deallocate_scalar_with_status): Ditto.
	* trans.cc (gfc_deallocate_with_status): Add class container
	argument and pass it down to gfc_add_finalize_call.
	(gfc_deallocate_scalar_with_status): Same.
	* trans-array.cc (structure_alloc_comps): Update caller.
	* trans-stmt.cc (gfc_trans_deallocate): Ditto.
	* trans-expr.cc (gfc_conv_procedure_call): Ditto.  Pass
	pre-evaluated class container argument if it's available.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/110618
	* trans.h (gfc_add_finalizer_call): Add class container argument.
	* trans.cc (gfc_add_finalizer_call): Ditto.  Pass down new
	argument to get_final_proc_ref, get_elem_size, get_var_desc,
	and get_vptr.
	(get_elem_size): Add class container argument.
	Use provided class container if it's available.
	(get_var_descr): Same.
	(get_vptr): Same.
	(get_final_proc_ref): Same.  Add boolean telling the class
	container argument is used.  Set it.  Don't try to use
	final_wrapper if class container argument was used.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	* trans.cc (get_var_descr): Factor scalar descriptor generation.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	* trans.cc (get_vptr): New function.
	(gfc_add_finalizer_call): Move virtual table pointer evaluation
	to get_vptr.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	* trans.cc (get_var_descr): Remove argument ts.  Use var->ts
	instead.
	(gfc_add_finalizer_call): Update caller.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	* trans.cc (gfc_add_finalizer_call): Inline definition of
	variable has_finalizer.  Merge nested conditions.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	* trans.cc (gfc_add_finalizer_call): Remove local variable
	final_expr.  Pass down expr to get_final_proc_ref and move
	final procedure expression generation down to its one usage
	in get_final_proc_ref.
	(get_final_proc_ref): Add argument expr.  Remove argument
	final_wrapper.  Recreate final_wrapper from expr.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	* trans.cc (gfc_add_finalizer_call): Remove local variable
	elem_size.  Pass expression to get_elem_size and move the
	element size expression generation close to its usage there.
	(get_elem_size): Add argument expr, remove class_size argument
	and rebuild it from expr.  Remove ts argument and use the
	type of expr instead.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	* trans.cc (gfc_add_finalizer_call): Move pre and post code for
	the final procedure pointer expression to the outer block.
	Reuse the previously evaluated final procedure pointer
	expression.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	* trans.cc (gfc_add_finalizer_call): Add post code for desc_se
	after the finalizer call.  Add post code for final_se and
	size_se as well.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	* trans.cc (gfc_build_final_call): Inline...
	(gfc_add_finalizer_call): ... to its one caller.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	* trans.cc (get_var_descr): New function.
	(gfc_build_final_call): Outline the data reference descriptor
	evaluation code to get_var_descr.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	* trans.cc (get_elem_size): New function.
	(gfc_build_final_call): Outline the element size evaluation
	to get_elem_size.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	* trans.cc (get_final_proc_ref): New function.
	(gfc_build_final_call): Outline the pointer evaluation code
	to get_final_proc_ref.

2023-07-17  Mikael Morin  <mikael@gcc.gnu.org>

	* trans.cc (gfc_build_final_call): Remove commented assertion.

2023-07-14  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/92178
	* trans.h (gfc_reset_vptr): Add class_container argument.
	* trans-expr.cc (gfc_reset_vptr): Ditto.  If a valid vptr can
	be obtained through class_container argument, bypass evaluation
	of e.
	(gfc_conv_procedure_call):  Wrap the argument evaluation code
	in a conditional if the associated dummy is optional.  Evaluate
	the data reference to a pointer now, and replace later
	references with usage of the pointer.

2023-07-14  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/92178
	* trans.h (struct gfc_se): New field class_container.
	(struct gfc_ss_info): Ditto.
	(gfc_evaluate_data_ref_now): New prototype.
	* trans.cc (gfc_evaluate_data_ref_now):  Implement it.
	* trans-array.cc (gfc_conv_ss_descriptor): Copy class_container
	field from gfc_se struct to gfc_ss_info struct.
	(gfc_conv_expr_descriptor): Copy class_container field from
	gfc_ss_info struct to gfc_se struct.
	* trans-expr.cc (gfc_conv_class_to_class): Use class container
	set in class_container field if available.
	(gfc_conv_variable): Set class_container field on encountering
	class variables or components, clear it on encountering
	non-class components.
	(gfc_conv_procedure_call): Evaluate data ref to a pointer now,
	and replace later references by usage of the pointer.

2023-07-14  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/92178
	* trans-expr.cc (gfc_conv_procedure_call): Use a separate gfc_se
	struct, initalized from parmse, to generate the class wrapper.
	After the class wrapper code has been generated, copy it back
	depending on whether parameter deallocation code has been
	generated.

2023-07-13  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/106050
	* symbol.cc (gfc_restore_last_undo_checkpoint): Release symbols
	in reverse order.

2023-07-12  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/102003
	* expr.cc (find_inquiry_ref): Replace len of pdt_string by
	constant.
	(simplify_ref_chain): Ensure input to find_inquiry_ref is
	NULL.
	(gfc_match_init_expr): Prevent PDT analysis for function calls.
	(gfc_pdt_find_component_copy_initializer): Get the initializer
	value for given component.
	* gfortran.h (gfc_pdt_find_component_copy_initializer): New
	function.
	* simplify.cc (gfc_simplify_len): Replace len() of PDT with pdt
	component ref or constant.

2023-07-11  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/110288
	* symbol.cc (gfc_copy_formal_args_intr): When deriving the formal
	argument attributes from the actual ones for intrinsic procedure
	calls, take special care of CHARACTER arguments that we do not
	wrongly treat them formally as deferred-length.

2023-07-08  Steve Kargl  <sgk@troutmask.apl.washington.edu>

	PR fortran/99139
	PR fortran/99368
	* match.cc (gfc_match_namelist): Check for host associated or
	defined types before applying default type.
	(gfc_match_select_rank): Apply default type to selector of
	unknown type if possible.
	* resolve.cc (resolve_fl_variable): Do not apply local default
	initialization to assumed rank entities.

2023-07-08  Harald Anlauf  <anlauf@gmx.de>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/92178
	* trans-expr.cc (gfc_conv_procedure_call): Check procedures for
	allocatable dummy arguments with INTENT(OUT) and move deallocation
	of actual arguments after evaluation of argument expressions before
	the procedure is executed.

2023-07-08  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/110585
	* arith.cc (gfc_compare_expr): Handle equality comparison of constant
	complex gfc_expr arguments.

2023-07-05  Robin Dapp  <rdapp@ventanamicro.com>
	    Juzhe-Zhong  <juzhe.zhong@rivai.ai>

	* trans-types.cc (gfc_type_for_mode): Ditto.

2023-06-28  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/110360
	* trans-expr.cc (gfc_conv_procedure_call): For non-constant string
	argument passed to CHARACTER(LEN=1),VALUE dummy, ensure proper
	dereferencing and truncation of string to length 1.

2023-06-28  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/49213
	* expr.cc (gfc_is_ptr_fcn): Remove reference to class_pointer.
	* resolve.cc (resolve_assoc_var): Call gfc_is_ptr_fcn to allow
	associate names with pointer function targets to be used in
	variable definition context.
	* trans-decl.cc (get_symbol_decl): Remove extraneous line.
	* trans-expr.cc (alloc_scalar_allocatable_subcomponent): Obtain
	size of intrinsic and character expressions.
	(gfc_trans_subcomponent_assign): Expand assignment to class
	components to include intrinsic and character expressions.

2023-06-24  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/110360
	* trans-expr.cc (gfc_conv_procedure_call): Truncate constant string
	argument of length > 1 passed to scalar CHARACTER(1),VALUE dummy.

2023-06-23  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/110360
	* trans-expr.cc (gfc_conv_procedure_call): Pass actual argument
	to scalar CHARACTER(1),VALUE dummy argument by value.

2023-06-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87477
	PR fortran/88688
	PR fortran/94380
	PR fortran/107900
	PR fortran/110224
	* decl.cc (char_len_param_value): Fix memory leak.
	(resolve_block_construct): Remove unnecessary static decls.
	* expr.cc (gfc_is_ptr_fcn): New function.
	(gfc_check_vardef_context): Use it to permit pointer function
	result selectors to be used for associate names in variable
	definition context.
	* gfortran.h: Prototype for gfc_is_ptr_fcn.
	* match.cc (build_associate_name): New function.
	(gfc_match_select_type): Use the new function to replace inline
	version and to build a new associate name for the case where
	the supplied associate name is already used for that purpose.
	* resolve.cc (resolve_assoc_var): Call gfc_is_ptr_fcn to allow
	associate names with pointer function targets to be used in
	variable definition context.
	* trans-decl.cc (gfc_get_symbol_decl): Unlimited polymorphic
	variables need deferred initialisation of the vptr.
	(gfc_trans_deferred_vars): Do the vptr initialisation.
	* trans-stmt.cc (trans_associate_var): Ensure that a pointer
	associate name points to the target of the selector and not
	the selector itself.

2023-06-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/108961
	* trans-expr.cc (gfc_conv_procedure_call): The hidden string
	length must not be passed to a formal arg of type(cptr).

2023-06-20  Tobias Burnus  <tobias@codesourcery.com>

	* dump-parse-tree.cc (show_omp_namelist): Fix dump of the allocator
	modifier of OMP_LIST_ALLOCATE.

2023-06-20  Tobias Burnus  <tobias@codesourcery.com>

	* match.cc (gfc_match_char): Match with '%S' a symbol
	with host_assoc = 1.

2023-06-19  Tobias Burnus  <tobias@codesourcery.com>

	* intrinsic.texi (OpenMP Modules OMP_LIB and OMP_LIB_KINDS): Also
	add references to the OpenMP 5.1 and 5.2 spec; add omp_initial_device
	and omp_invalid_device named constants.

2023-06-13  Harald Anlauf  <anlauf@gmx.de>
	    Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/86277
	* trans-array.cc (gfc_trans_allocate_array_storage): When passing a
	zero-sized array with fixed (= non-dynamic) size, allocate temporary
	by the caller, not by the callee.

2023-06-10  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	* f95-lang.cc (gfc_init_builtin_functions): Add fmax() and
	fmin() built-ins, and their variants.
	* mathbuiltins.def: Add FMAX and FMIN built-ins.
	* trans-intrinsic.cc (conv_intrinsic_ieee_minmax): New function.
	(gfc_conv_ieee_arithmetic_function): Handle IEEE_MIN_NUM and
	IEEE_MAX_NUM functions.

2023-06-09  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/96024
	* primary.cc (gfc_convert_to_structure_constructor): Only do
	constant string ctor length verification and truncation/padding
	if constant length has INTEGER type.

2023-06-08  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87477
	PR fortran/99350
	PR fortran/107821
	PR fortran/109451
	* decl.cc (char_len_param_value): Simplify a copy of the expr
	and replace the original if there is no error.
	* gfortran.h : Remove the redundant field 'rankguessed' from
	'gfc_association_list'.
	* resolve.cc (resolve_assoc_var): Remove refs to 'rankguessed'.
	(resolve_variable): Associate names with constant or structure
	constructor targets cannot have array refs.
	* trans-array.cc (gfc_conv_expr_descriptor): Guard expression
	character length backend decl before using it. Suppress the
	assignment if lhs equals rhs.
	* trans-io.cc (gfc_trans_transfer): Scalarize transfer of
	associate variables pointing to a variable. Add comment.
	* trans-stmt.cc (trans_associate_var): Remove requirement that
	the character length be deferred before assigning the value
	returned by gfc_conv_expr_descriptor. Also, guard the backend
	decl before testing with VAR_P.

2023-06-06  Kwok Cheung Yeung  <kcy@codesourcery.com>
	    Tobias Burnus  <tobias@codesourcery.com>

	* dump-parse-tree.cc (show_omp_namelist): Display 'present' map
	modifier.
	(show_omp_clauses): Display 'present' motion modifier for 'to'
	and 'from' clauses.
	* gfortran.h (enum gfc_omp_map_op): Add entries with 'present'
	modifiers.
	(struct gfc_omp_namelist): Add 'present_modifer'.
	* openmp.cc (gfc_match_motion_var_list): New, handles optional
	'present' modifier for to/from clauses.
	(gfc_match_omp_clauses): Call it for to/from clauses; parse 'present'
	in defaultmap and map clauses.
	(resolve_omp_clauses): Allow 'present' modifiers on 'target',
	'target data', 'target enter' and 'target exit'	directives.
	* trans-openmp.cc (gfc_trans_omp_clauses): Apply 'present' modifiers
	to tree node for 'map', 'to' and 'from'	clauses.  Apply 'present' for
	defaultmap.

2023-06-02  Steve Kargl  <kargl@gcc.gnu.org>

	PR fortran/100607
	* resolve.cc (resolve_select_rank): Remove duplicate error.
	(resolve_fl_var_and_proc): Prevent NULL pointer dereference and
	suppress error message for temporary.

2023-06-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87477
	* parse.cc (parse_associate): Replace the existing evaluation
	of the target rank with calls to gfc_resolve_ref and
	gfc_expression_rank. Identify untyped target function results
	with structure constructors by finding the appropriate derived
	type.
	* resolve.cc (resolve_symbol): Allow associate variables to be
	assumed shape.

2023-06-01  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/88552
	* decl.cc (gfc_match_kind_spec): Use error path on missing right
	parenthesis.
	(gfc_match_decl_type_spec): Use error return when an error occurred
	during matching a KIND specifier.

2023-06-01  Tobias Burnus  <tobias@codesourcery.com>

	* parse.cc (decode_omp_directive): Accept all pure directives
	inside a PURE procedures; handle 'error at(execution).

2023-05-26  Tobias Burnus  <tobias@codesourcery.com>

	* dump-parse-tree.cc (show_omp_namelist): Update allocator, fix
	align dump.
	(show_omp_node, show_code_node): Handle EXEC_OMP_ALLOCATE.
	* gfortran.h (enum gfc_statement): Add ST_OMP_ALLOCATE and ..._EXEC.
	(enum gfc_exec_op): Add EXEC_OMP_ALLOCATE.
	(struct gfc_omp_namelist): Add 'allocator' to 'u2' union.
	(struct gfc_namespace): Add omp_allocate.
	(gfc_resolve_omp_allocate): New.
	* match.cc (gfc_free_omp_namelist): Free 'u2.allocator'.
	* match.h (gfc_match_omp_allocate, gfc_match_omp_allocators): New.
	* openmp.cc (gfc_omp_directives): Uncomment allocate/allocators.
	(gfc_match_omp_variable_list): Add bool arg for
	rejecting listening common-block vars separately.
	(gfc_match_omp_clauses): Update for u2.allocators.
	(OMP_ALLOCATORS_CLAUSES, gfc_match_omp_allocate,
	gfc_match_omp_allocators, is_predefined_allocator,
	gfc_resolve_omp_allocate): New.
	(resolve_omp_clauses): Update 'allocate' clause checks.
	(omp_code_to_statement, gfc_resolve_omp_directive): Handle
	OMP ALLOCATE/ALLOCATORS.
	* parse.cc (in_exec_part): New global var.
	(check_omp_allocate_stmt, parse_openmp_allocate_block): New.
	(decode_omp_directive, case_exec_markers, case_omp_decl,
	gfc_ascii_statement, parse_omp_structured_block): Handle
	OMP allocate/allocators.
	(verify_st_order, parse_executable): Set in_exec_part.
	* resolve.cc (gfc_resolve_blocks, resolve_codes): Handle
	allocate/allocators.
	* st.cc (gfc_free_statement): Likewise.
	* trans.cc (trans_code): Likewise.
	* trans-openmp.cc (gfc_trans_omp_directive): Likewise.
	(gfc_trans_omp_clauses, gfc_split_omp_clauses): Update for
	u2.allocator, fix for u.align.

2023-05-24  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/104350
	* simplify.cc (simplify_size): Reject DIM argument of intrinsic SIZE
	with error when out of valid range.

2023-05-24  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/103794
	* check.cc (gfc_check_reshape): Expand constant arguments SHAPE and
	ORDER before checking.
	* gfortran.h (gfc_is_constant_array_expr): Add prototype.
	* iresolve.cc (gfc_resolve_reshape): Expand constant argument SHAPE.
	* simplify.cc (is_constant_array_expr): If array is determined to be
	constant, expand small array constructors if needed.
	(gfc_is_constant_array_expr): Wrapper for is_constant_array_expr.
	(gfc_simplify_reshape): Fix check for insufficient elements in SOURCE
	when no padding specified.

2023-05-23  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/103716
	* resolve.cc (gfc_resolve_ref): Conversion of array_ref into an
	element should be done for all characters without a len expr,
	not just deferred lens, and for integer expressions.
	* trans-expr.cc (conv_inquiry): For len and kind inquiry refs,
	set the se string_length to NULL_TREE.

2023-05-23  Paul Thomas  <pault@gcc.gnu.org>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/97122
	* decl.cc (variable_decl): Clean up white space issues.
	(gfc_match_final_decl): Declaration of finalizable derived type
	is allowed in a submodule.

2023-05-19  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* expr.cc (gfc_get_corank): Use CLASS_DATA from gfortran.h.
	* resolve.cc (resolve_component): Same.
	(resolve_fl_derived0): Same.
	* simplify.cc (gfc_simplify_extends_type_of): Same.
	(simplify_cobound): Same.

2023-05-18  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* trans-array.cc (is_pointer_array): Use _P() defines from tree.h.
	(gfc_conv_scalarized_array_ref): Ditto.
	(gfc_conv_array_ref): Ditto.
	* trans-decl.cc (gfc_finish_decl): Ditto.
	(gfc_get_symbol_decl): Ditto.
	* trans-expr.cc (gfc_trans_pointer_assignment): Ditto.
	(gfc_trans_arrayfunc_assign): Ditto.
	(gfc_trans_assignment_1): Ditto.
	* trans-intrinsic.cc (gfc_conv_intrinsic_minmax): Ditto.
	(conv_intrinsic_ieee_value): Ditto.
	* trans-io.cc (gfc_convert_array_to_string): Ditto.
	* trans-openmp.cc (gfc_omp_is_optional_argument): Ditto.
	(gfc_trans_omp_clauses): Ditto.
	* trans-stmt.cc (gfc_conv_label_variable): Ditto.
	* trans.cc (gfc_build_addr_expr): Ditto.
	(get_array_span): Ditto.

2023-05-18  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	PR fortran/78798
	* array.cc (compare_bounds): Use narrower return type.
	(gfc_compare_array_spec): Likewise.
	(is_constant_element): Likewise.
	(gfc_constant_ac): Likewise.
	* check.cc (dim_rank_check): Likewise.
	* cpp.cc (gfc_cpp_init_options): Likewise.
	(dump_macro): Likewise.
	* cpp.h (gfc_cpp_handle_option): Likewise.
	* dependency.cc (gfc_ref_needs_temporary_p): Likewise.
	(gfc_check_argument_dependency): Likewise.
	(gfc_check_fncall_dependency): Likewise.
	(ref_same_as_full_array): Likewise.
	* dependency.h (gfc_check_fncall_dependency): Likewise.
	(gfc_dep_resolver): Likewise.
	(gfc_are_equivalenced_arrays): Likewise.
	* expr.cc (gfc_copy_ref): Likewise.
	(gfc_kind_max): Likewise.
	(numeric_type): Likewise.
	* gfortran.h (gfc_at_end): Likewise.
	(gfc_at_eof): Likewise.
	(gfc_at_bol): Likewise.
	(gfc_at_eol): Likewise.
	(gfc_define_undef_line): Likewise.
	(gfc_wide_is_printable): Likewise.
	(gfc_wide_is_digit): Likewise.
	(gfc_wide_fits_in_byte): Likewise.
	(gfc_find_sym_tree): Likewise.
	(gfc_generic_intrinsic): Likewise.
	(gfc_specific_intrinsic): Likewise.
	(gfc_intrinsic_actual_ok): Likewise.
	(gfc_has_vector_index): Likewise.
	(gfc_numeric_ts): Likewise.
	(gfc_impure_variable): Likewise.
	(gfc_pure): Likewise.
	(gfc_implicit_pure): Likewise.
	(gfc_elemental): Likewise.
	(gfc_pure_function): Likewise.
	(gfc_implicit_pure_function): Likewise.
	(gfc_compare_array_spec): Likewise.
	(gfc_constant_ac): Likewise.
	(gfc_expanded_ac): Likewise.
	(gfc_check_digit): Likewise.
	* intrinsic.cc (gfc_find_subroutine): Likewise.
	(gfc_generic_intrinsic): Likewise.
	(gfc_specific_intrinsic): Likewise.
	* io.cc (compare_to_allowed_values): Likewise. And remove
	unneeded forward declaration.
	* parse.cc: Likewise.
	* parse.h (gfc_check_do_variable): Likewise.
	* primary.cc (gfc_check_digit): Likewise.
	* resolve.cc (resolve_structure_cons): Likewise.
	(pure_stmt_function): Likewise.
	(gfc_pure_function): Likewise.
	(impure_stmt_fcn): Likewise.
	(resolve_forall_iterators): Likewise.
	(resolve_data): Likewise.
	(gfc_impure_variable): Likewise.
	(gfc_pure): Likewise.
	(gfc_unset_implicit_pure): Likewise.
	* scanner.cc (wide_is_ascii): Likewise.
	(gfc_wide_toupper): Likewise.
	(gfc_open_included_file): Likewise.
	(gfc_at_end): Likewise.
	(gfc_at_eof): Likewise.
	(gfc_at_bol): Likewise.
	(skip_comment_line): Likewise.
	(gfc_gobble_whitespace): Likewise.
	* symbol.cc (gfc_find_symtree_in_proc): Likewise.
	* trans-array.cc: Likewise.
	* trans-decl.cc (gfc_set_decl_assembler_name): Likewise.
	* trans-types.cc (gfc_get_element_type): Likewise.
	(gfc_add_field_to_struct): Likewise.
	* trans-types.h (gfc_copy_dt_decls_ifequal): Likewise.
	(gfc_return_by_reference): Likewise.
	(gfc_is_nodesc_array): Likewise.
	* trans.h (gfc_can_put_var_on_stack): Likewise.

2023-05-17  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95374
	PR fortran/104352
	* decl.cc (add_init_expr_to_sym): Set shape of initializer also for
	zero-sized arrays, so that bounds violations can be detected later.

2023-05-17  Tobias Burnus  <tobias@codesourcery.com>

	* trans-decl.cc (gfc_get_symbol_decl): Add attributes
	such as 'declare target' also to hidden artificial
	variable for deferred-length character variables.
	* trans-openmp.cc (gfc_trans_omp_array_section,
	gfc_trans_omp_clauses, gfc_trans_omp_target_exit_data):
	Improve mapping of array descriptors and deferred-length
	string variables.

2023-05-16  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/105152
	PR fortran/100193
	PR fortran/87496
	PR fortran/103389
	PR fortran/104429
	PR fortran/82774
	* interface.cc (gfc_compare_actual_formal): Emit an error if an
	unlimited polymorphic actual is not matched either to an
	unlimited or assumed type formal argument.
	* resolve.cc (resolve_ordinary_assign): Emit an error if the
	var expression of an ordinary assignment is a proc pointer
	component.
	* trans-array.cc (gfc_walk_array_ref): Provide assumed shape
	arrays coming from interface mapping with a viable arrayspec.
	* trans-expr.cc (gfc_conv_intrinsic_to_class): Tidy up flagging
	of unlimited polymorphic 'class_ts'.
	(gfc_conv_gfc_desc_to_cfi_desc): Assumed type is unlimited
	polymorphic and should accept any actual type.
	(gfc_conv_procedure_call): Replace dreadful kludge with a call
	to gfc_finalize_tree_expr. Avoid dereferencing a void pointer
	by giving it the pointer type of the actual argument.
	(alloc_scalar_allocatable_subcomponent): Shorten the function
	name and replace the symbol argument with the se string length.
	If a deferred length character length is either not present or
	is not a variable, give the typespec a variable and assign the
	string length to that. Use gfc_deferred_strlen to find the
	hidden string length component.
	(gfc_trans_subcomponent_assign): Convert the expression before
	the call to alloc_scalar_allocatable_subcomponent so that a
	good string length is provided.
	(gfc_trans_structure_assign): Remove the unneeded derived type
	symbol from calls to gfc_trans_subcomponent_assign.

2023-05-15  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/109846
	* expr.cc (gfc_check_vardef_context): Check appropriate pointer
	attribute for CLASS vs. non-CLASS function result in variable
	definition context.

2023-05-11  Xi Ruoyao  <xry111@xry111.site>

	* Make-lang.in: Use grep instead of fgrep.

2023-05-10  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* dump-parse-tree.cc (gfc_debug_expr): Remove forward declaration.
	(debug): Add DEBUG_FUNCTION.
	(show_code_node): Remove erroneous whitespace.

2023-05-10  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	PR fortran/109624
	* dump-parse-tree.cc (debug): New function for gfc_namespace.
	(gfc_debug_code): Delete forward declaration.
	(show_attr): Make sure to print balanced braces.

2023-05-08  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* resolve.cc (resolve_select_type): Fix coding style.

2023-05-08  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* resolve.cc (resolve_select_type): Call free() unconditionally.

2023-05-08  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	PR fortran/68800
	* expr.cc (find_array_section): Fix mpz memory leak.
	* simplify.cc (gfc_simplify_reshape): Fix mpz memory leaks in
	error paths.

2023-05-05  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/109641
	* arith.cc (eval_intrinsic): Check conformability of ranks of operands
	for intrinsic binary operators before performing type conversions.
	* gfortran.h (gfc_op_rank_conformable): Add prototype.
	* resolve.cc (resolve_operator): Check conformability of ranks of
	operands for intrinsic binary operators before performing type
	conversions.
	(gfc_op_rank_conformable): New helper function to compare ranks of
	operands of binary operator.

2023-05-04  Julian Brown  <julian@codesourcery.com>

	PR fortran/109622
	* openmp.cc (resolve_omp_clauses): Add diagnostic for
	non-pointer/non-allocatable attach/detach.
	* trans-openmp.cc (gfc_trans_omp_clauses): Remove dereference for
	pointer-to-scalar derived type component attach/detach.  Fix
	attach/detach handling for descriptors.

2023-04-28  Julian Brown  <julian@codesourcery.com>

	PR fortran/109622
	* trans-openmp.cc (gfc_trans_omp_clauses): Attach/detach clause fixes.

2023-04-28  Tobias Burnus  <tobias@codesourcery.com>

	* gfortran.texi: Fix typos.
	* decl.cc: Fix typos in comments and in a variable name.
	* arith.cc: Fix comment typos.
	* check.cc: Likewise.
	* class.cc: Likewise.
	* dependency.cc: Likewise.
	* expr.cc: Likewise.
	* frontend-passes.cc: Likewise.
	* gfortran.h: Likewise.
	* intrinsic.cc: Likewise.
	* iresolve.cc: Likewise.
	* match.cc: Likewise.
	* module.cc: Likewise.
	* primary.cc: Likewise.
	* resolve.cc: Likewise.
	* simplify.cc: Likewise.
	* trans-array.cc: Likewise.
	* trans-decl.cc: Likewise.
	* trans-expr.cc: Likewise.
	* trans-intrinsic.cc: Likewise.
	* trans-openmp.cc: Likewise.
	* trans-stmt.cc: Likewise.

2023-04-25  Tobias Burnus  <tobias@codesourcery.com>

	* openmp.cc (gfc_resolve_omp_do_blocks): Handle zero
	or more than one exec statements before/after 'omp scan'.
	* trans-openmp.cc (gfc_trans_omp_do): Likewise.

2023-04-22  Harald Anlauf  <anlauf@gmx.de>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/109500
	* interface.cc (gfc_compare_actual_formal): Reject allocatable
	functions being used as actual argument for allocable dummy.

2023-04-14  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/109511
	* simplify.cc (gfc_simplify_set_exponent): Fix implementation of
	compile-time simplification of intrinsic SET_EXPONENT for argument
	X < 1 and for I < 0.

2023-04-14  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/104272
	* gfortran.h : Add expr3_not_explicit bit field to gfc_code.
	* resolve.cc (resolve_allocate_expr): Set bit field when the
	default initializer is applied to expr3.
	* trans-stmt.cc (gfc_trans_allocate): If expr3_not_explicit is
	set, do not deallocate expr3.

2023-04-13  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/109492
	* trans-expr.cc (gfc_conv_power_op): Use absu_hwi and
	unsigned HOST_WIDE_INT for portability.

2023-04-12  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/104312
	* resolve.cc (resolve_entries): Handle functions with ENTRY and
	ALLOCATABLE results.
	* trans-expr.cc (gfc_conv_procedure_call): Functions with a result
	with the POINTER or ALLOCATABLE attribute shall not get any special
	treatment with -ff2c, as they cannot be written in Fortran 77.
	* trans-types.cc (gfc_return_by_reference): Likewise.
	(gfc_get_function_type): Likewise.

2023-04-12  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/61615
	PR fortran/99982
	* interface.cc (compare_parameter): Enable type and rank checks for
	arguments of derived type from the intrinsic module ISO_C_BINDING.

2023-04-08  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87477
	* iresolve.cc (gfc_resolve_adjustl, gfc_resolve_adjustr): if
	string length is deferred use the string typespec for result.
	* resolve.cc (resolve_assoc_var): Handle parentheses around the
	target expression.
	(resolve_block_construct): Remove unnecessary static decls.
	* trans-array.cc (gfc_conv_expr_descriptor): Guard string len
	expression in condition. Improve handling of string length and
	span, especially for substrings of the descriptor.
	(duplicate_allocatable): Make element type more explicit with
	'eltype'.
	* trans-decl.cc (gfc_get_symbol_decl): Emit a fatal error with
	appropriate message instead of ICE if symbol type is unknown.
	(gfc_generate_function_code): Set current locus to proc_sym
	declared_at.
	* trans-expr.cc (gfc_get_expr_charlen): Retain last charlen in
	'previous' and use if end expression in substring reference is
	null.
	(gfc_conv_string_length): Use gfc_conv_expr_descriptor if
	'expr_flat' is an array. Add post block to catch deallocation
	of temporaries.
	(gfc_conv_procedure_call): Assign the parmse string length to
	the expression string length, if it is deferred.
	(gfc_trans_alloc_subarray_assign): If this is a deferred string
	length component, store the string length in the hidden comp.
	Update the typespec length accordingly. Generate a new type
	spec for the call to gfc_duplicate-allocatable in this case.
	* trans-io.cc (gfc_trans_transfer): Scalarize transfer of
	deferred character array components.

2023-04-04  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/104349
	* expr.cc (check_restricted): Adjust check for valid variables in
	restricted expressions: make no exception for module variables.

2023-04-01  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* dump-parse-tree.cc (get_c_type_name): Fix "long_long"
	type name to be "long long".

2023-03-30  Andrew Pinski  <apinski@marvell.com>

	* dump-parse-tree.cc (get_c_type_name): Fix "long_long"
	type name to be "long long". Add a comment on why adding
	2 to the name too.

2023-03-28  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/109314
	* openmp.cc (gfc_omp_absent_contains_clause): Fix typo in diagnostics
	- composit -> composite.

2023-03-25  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/104321
	* trans-decl.cc (gfc_conv_cfi_to_gfc): Remove dead code.

2023-03-24  Harald Anlauf  <anlauf@gmx.de>

	* expr.cc (free_expr0): Free also BOZ strings as part of an expression.

2023-03-24  Haochen Gui  <guihaoc@gcc.gnu.org>
	    Tobias Burnus  <tobias@codesourcery.com>

	PR target/103628
	* target-memory.cc (gfc_interpret_float): Return FAIL when
	native_interpret_expr gets a NULL tree.
	* arith.cc (gfc_hollerith2real): Return NULL when
	gfc_interpret_float fails.
	* error.cc (gfc_buffered_p): Define.
	* gfortran.h (gfc_buffered_p): Declare.
	* intrinsic.cc: Add diagnostic.h to include list.
	(do_simplify): Save errorcount and check it at finish.  Report a
	"Cannot simplify expression" error on a bad result if error count
	doesn't change and no other errors buffered.

2023-03-22  Harald Anlauf  <anlauf@gmx.de>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/104572
	* resolve.cc (gfc_resolve_finalizers): Argument of a FINAL subroutine
	cannot be an alternate return.

2023-03-21  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/99036
	* decl.cc (gfc_match_modproc): Reject MODULE PROCEDURE if not in a
	generic module interface.

2023-03-21  Arsen Arsenović  <arsen@aarsen.me>

	* invoke.texi: Remove usages of @gol.
	* intrinsic.texi: Ditto.

2023-03-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/109206
	* trans-array.cc (gfc_trans_array_constructor_value): Correct
	incorrect setting of typespec.

2023-03-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/109209
	* resolve.cc (generate_component_assignments): Restore the
	exclusion of allocatable components from the loop.

2023-03-20  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/109216
	* invoke.texi: Correct documentation of how underscores are appended
	to external names.

2023-03-20  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/109186
	* simplify.cc (gfc_simplify_nearest): Fix off-by-one error in setting
	up real kind-specific maximum exponent for mpfr.

2023-03-20  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87127
	* resolve.cc (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.

2023-03-19  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/85877
	* resolve.cc (resolve_fl_procedure): Check for an explicit interface
	of procedures with the BIND(C) attribute (F2018:15.4.2.2).

2023-03-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* gfortran.texi: Mention behavior on overflow.

2023-03-18  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/103854
	PR fortran/96122
	PR fortran/37336
	* class.cc (finalize_component): Include the missing arguments
	in the call to the component's finalizer wrapper.
	(has_finalizer_component): Do not return true for procedure
	pointer components.
	(finalizer_insert_packed_call): Remove the redundant argument
	in the call to the final subroutine.
	(generate_finalization_wrapper): Add support for assumed rank
	finalizers.
	(gfc_may_be_finalized): New helper function.
	* dump-parse-tree.cc (write_proc): Whitespace.
	* gfortran.h : Add prototype for gfc_may_be_finalized.
	* resolve.cc (resolve_function): Correct derived types that
	have an incomplete namespace.
	(resolve_where, gfc_resolve_where_code_in_forall,
	gfc_resolve_forall_body, gfc_resolve_code): Check that the op
	code is still EXEC_ASSIGN. If it is set lhs to must finalize.
	(is_finalizable_type): New function.
	(generate_component_assignments): Set must_finalize if needed.
	(gfc_resolve_finalizers): Error if assumed rank finalizer is
	not the only one. Warning on lack of scalar finalizer modified
	to account for assumed rank finalizers.
	(generate_final_call): New function.
	(generate_component_assignments): Enclose the outermost call in
	a block to capture automatic deallocation and final calls.
	Set must_finalize as required to satisfy the standards. Use an
	explicit pointer assignment for pointer components to capture
	finalization of the target. Likewise use explicit assignment
	for allocatable components. Do not use the temporary copy of
	the lhs in defined assignment if the component is allocatable.
	Put the temporary in the same namespace as the lhs symbol if
	the component may be finalized. Remove the leading assignment
	from the expansion of assignment of components that have their
	own defined assignment components. Suppress finalization of
	assignment of temporary components to the lhs. Make an explicit
	final call for the rhs function temporary if it exists.
	(gfc_resolve_code): Set must_finalize for assignments with an
	array constructor on the rhs.
	(gfc_resolve_finalizers): Ensure that an assumed rank finalizer
	is the only finalizer for that type and correct the surprising
	warning for the lack of a scalar finalizer.
	(check_defined_assignments): Handle allocatable components.
	(resolve_fl_derived): Set referenced the vtab for use
	associated symbols.
	(resolve_symbol): Set referenced an unreferenced symbol that
	will be finalized.
	* trans-array.cc (gfc_trans_array_constructor_value): Add code
	to finalize the constructor result. Warn that this feature was
	removed in F2018 and that it is suppressed by -std=2018.
	(trans_array_constructor): Add finalblock, pass to previous
	and apply to loop->post if filled.
	(gfc_add_loop_ss_code): Add se finalblock to outer loop post.
	(gfc_trans_array_cobounds, gfc_trans_array_bounds): Add any
	generated finalization code to the main block.
	(structure_alloc_comps): Add boolean argument to suppress
	finalization and use it for calls from
	gfc_deallocate_alloc_comp_no_caf. Otherwise it defaults to
	false.
	(gfc_copy_alloc_comp_no_fini): New wrapper for
	structure_alloc_comps.
	(gfc_alloc_allocatable_for_assignment): Suppress finalization
	by setting new arg in call to gfc_deallocate_alloc_comp_no_caf.
	(gfc_trans_deferred_array): Use gfc_may_be_finalized and do not
	deallocate the components of entities with a leading '_' in the
	name that are also marked as artificial.
	* trans-array.h : Add the new boolean argument to the prototype
	of gfc_deallocate_alloc_comp_no_caf with a default of false.
	Add prototype for gfc_copy_alloc_comp_no_fini.
	* trans-decl.cc(init_intent_out_dt): Tidy up the code.
	* trans-expr.cc (gfc_init_se): Initialize finalblock.
	(gfc_conv_procedure_call): Use gfc_finalize_tree_expr to
	finalize function results. Replace in-line block for class
	results with call to new function.
	(gfc_conv_expr): Finalize structure constructors for F2003 and
	F2008. Warn that this feature was deleted in F2018 and, unlike
	array constructors, is not default. Add array constructor
	finalblock to the post block.
	(gfc_trans_scalar_assign): Suppress finalization by setting new
	argument in call to gfc_deallocate_alloc_comp_no_caf. Add the
	finalization blocks to the main block.
	(gfc_trans_arrayfunc_assign): Use gfc_assignment_finalizer_call
	and ensure that finalization occurs after the evaluation of the
	rhs but using the initial value for the lhs. Finalize rhs
	function results using gfc_finalize_tree_expr.
	(trans_class_assignment, gfc_trans_assignment_1): As previous
	function, taking care to order evaluation, assignment and
	finalization correctly.
	* trans-io.cc (gfc_trans_transfer): Add the final block.
	* trans-stmt.cc (gfc_trans_call, gfc_trans_allocate): likewise.
	(trans_associate_var): Nullify derived allocatable components
	and finalize function targets with defined assignment
	components on leaving the block scope.
	(trans_allocate): Finalize source expressions, if required,
	and set init_expr artificial temporarily to suppress the
	finalization in gfc_trans_assignment.
	* trans.cc (gfc_add_finalizer_call): Do not finalize the
	temporaries generated in type assignment with defined
	assignment components.
	(gfc_assignment_finalizer_call): New function.
	(gfc_finalize_tree_expr): New function.
	* trans.h: Add finalblock to gfc_se. Add the prototypes for
	gfc_finalize_tree_expr and gfc_assignment_finalizer_call.

2023-03-15  Harald Anlauf  <anlauf@gmx.de>
	    Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/58331
	* interface.cc (compare_parameter): Adjust check of array dummy
	arguments to handle the case of CLASS variables.

2023-03-11  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/106945
	* trans-expr.cc (gfc_copy_class_to_class): Convert element counts in
	bounds check to common type for comparison.

2023-03-10  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/104332
	* resolve.cc (resolve_symbol): Avoid NULL pointer dereference while
	checking a symbol with the BIND(C) attribute.

2023-03-05  Harald Anlauf  <anlauf@gmx.de>
	    Tobias Burnus   <tobias@codesourcery.com>

	PR fortran/106856
	* class.cc (gfc_build_class_symbol): Handle update of attributes of
	existing class container.
	(gfc_find_derived_vtab): Fix several memory leaks.
	(find_intrinsic_vtab): Ditto.
	* decl.cc (attr_decl1): Manage update of symbol attributes from
	CLASS attributes.
	* primary.cc (gfc_variable_attr): OPTIONAL shall not be taken or
	updated from the class container.
	* symbol.cc (free_old_symbol): Adjust management of symbol versions
	to not prematurely free array specs while working on the declation
	of CLASS variables.

2023-03-01  Tobias Burnus  <tobias@codesourcery.com>

	PR middle-end/108546
	* trans-openmp.cc (gfc_trans_omp_clauses): Fix mapping of
	type(C_ptr) variables.

2023-02-27  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/108937
	* trans-intrinsic.cc (gfc_conv_intrinsic_ibits): Handle corner case
	LEN argument of IBITS equal to BITSIZE(I).

2023-02-25  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/108923
	* intrinsic.cc (get_intrinsic_dummy_arg,
	set_intrinsic_dummy_arg): Rename the former to the latter.
	Remove the return value, add a reference to the lhs as argument,
	and do the pointer assignment inside the function.  Don't do
	it if the pointer is already non-NULL.
	(sort_actual): Update caller.

2023-02-25  Harald Anlauf  <anlauf@gmx.de>

	* arith.cc (gfc_real2int): Clear mpfr variable after use.

2023-02-25  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/108621
	* trans-expr.cc (gfc_conv_gfc_desc_to_cfi_desc): Skip setting of
	bounds of CFI desc for 'pointer,intent(out)'.

2023-02-24  Rimvydas Jasinskas  <rimvydas.jas@gmail.com>

	* trans-decl.cc (gfc_finish_var_decl): Apply attribute.
	(generate_local_decl): Add diagnostic for dummy and local variables.

2023-02-24  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/108923
	* expr.cc (gfc_free_actual_arglist): Free associated_dummy
	memory.
	(gfc_copy_actual_arglist): Make a copy of the associated_dummy
	field if it is set in the original element.

2023-02-24  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/108924
	* frontend-passes.cc (do_subscript): Clear used gmp variable.

2023-02-23  Arsen Arsenović  <arsen@aarsen.me>

	* invoke.texi: Reorder index entries around @items.

2023-02-23  Arsen Arsenović  <arsen@aarsen.me>

	* invoke.texi: Reorder @opindex commands to precede @items they
	relate to.

2023-02-22  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/96024
	* resolve.cc (resolve_component): The type of a CHARACTER length
	expression must be INTEGER.

2023-02-21  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/96025
	* parse.cc (check_function_result_typed): Improve type check of
	specification expression for character length and return status.
	(parse_spec): Use status from above.
	* resolve.cc (resolve_fntype): Prevent use of invalid specification
	expression for character length.

2023-02-16  Patrick Palka  <ppalka@redhat.com>

	* gfortran.h: Mechanically drop static from static inline
	functions via s/^static inline/inline/g.

2023-02-15  Steve Kargl  <kargl@gcc.gnu.org>

	PR fortran/103608
	* frontend-passes.cc (do_intent): Catch NULL pointer dereference on
	reference to invalid formal argument.

2023-02-15  Steve Kargl  <kargl@gcc.gnu.org>

	PR fortran/104554
	* resolve.cc (check_assumed_size_reference): Avoid NULL pointer
	dereference.

2023-02-15  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/108512
	* openmp.cc (gfc_resolve_omp_parallel_blocks): Handle combined 'loop'
	directives.
	(gfc_resolve_do_iterator): Set a source location for added
	'private'-clause arguments.
	* resolve.cc (gfc_resolve_code): Call gfc_resolve_omp_do_blocks
	also for EXEC_OMP_LOOP and gfc_resolve_omp_parallel_blocks for
	combined directives with loop + '{masked,master} taskloop (simd)'.

2023-02-13  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/103475
	* primary.cc (gfc_expr_attr): Avoid NULL pointer dereference for
	invalid use of CLASS variable.

2023-02-13  Rimvydas Jasinskas  <rimvydas.jas@gmail.com>

	* decl.cc: Add EXT_ATTR_NOINLINE, EXT_ATTR_NORETURN, EXT_ATTR_WEAK.
	* gfortran.h (ext_attr_id_t): Ditto.
	* gfortran.texi (GCC$ ATTRIBUTES): Document them.
	* trans-decl.cc (build_function_decl): Apply them.

2023-02-09  Harald Anlauf  <anlauf@gmx.de>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/69636
	PR fortran/103779
	* intrinsic.cc (gfc_convert_chartype): Recover on invalid character
	kind in conversion instead of generating an internal error.

2023-02-09  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/107424
	* trans-openmp.cc (struct dovar_init_d): Add 'sym' and
	'non_unit_incr' members.
	(gfc_nonrect_loop_expr): New.
	(gfc_trans_omp_do): Call it; use normal loop bounds
	for unit stride - and only create local loop var.

2023-02-09  Tobias Burnus  <tobias@codesourcery.com>

	* parse.cc (decode_omp_directive): Really ignore 'assumes' with
	-fopenmp-simd.

2023-02-08  Steve Kargl  <kargl@gcc.gnu.org>

	PR fortran/103259
	* resolve.cc (resolve_common_vars): Avoid NULL pointer dereference
	when a symbol's location is not set.

2023-02-07  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95107
	* trans-decl.cc (gfc_finish_var_decl): With -fno-automatic, do not
	make ASSOCIATE variables TREE_STATIC.

2023-02-05  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/108592
	* arith.cc (gfc_arith_divide): Emit integer division truncation
	warnings using gfc_warning instead of gfc_warning_now to prevent
	redundant messages.

2023-02-03  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/108451
	* trans-decl.cc (gfc_trans_use_stmts): Call clear_slot before
	doing continue.

2023-02-01  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/108609
	* expr.cc (find_array_section): Add check to prevent interpreting an
	mpz non-integer constant as an integer.

2023-02-01  Tobias Burnus  <tobias@codesourcery.com>

	* openmp.cc (resolve_omp_clauses): Check also for
	power of two.

2023-01-29  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/108450
	* check.cc (gfc_check_minloc_maxloc): Explicitly set argument name.
	(gfc_check_findloc): Ditto.

2023-01-29  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/103506
	* parse.cc (parse_module): Remove use of a bool error value
	that prevented proper setting of the namespace pointer.

2023-01-28  Harald Anlauf  <anlauf@gmx.de>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/108527
	* resolve.cc (compare_bound_int): Expression to compare must be of
	type INTEGER.
	(compare_bound_mpz_t): Likewise.
	(check_dimension): Fix comment on checks applied to array section
	and clean up associated logic.

2023-01-28  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/108453
	* match.cc (gfc_match_common): A USE associated name shall not appear
	in a COMMON block (F2018:C8121).

2023-01-27  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/108558
	* trans-openmp.cc (gfc_split_omp_clauses): Handle has_device_addr.

2023-01-26  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/108544
	* resolve.cc (check_host_association): Extend host association check
	so that it is not restricted to functions.  Also prevent NULL pointer
	dereference.

2023-01-25  Steve Kargl  <kargl@gcc.gnu.org>

	PR fortran/108528
	* array.cc (compare_bounds): Return false instead of generating an
	internal error on an invalid argument type.

2023-01-24  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/108529
	* simplify.cc (simplify_transformation): Do not try to simplify
	transformational intrinsic when the ARRAY argument has a NULL shape.

2023-01-23  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/108502
	* dependency.cc (gfc_check_dependency): Prevent NULL pointer
	dereference while recursively checking expressions.

2023-01-23  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/108501
	* interface.cc (get_expr_storage_size): Check array subscript triplets
	that we actually have integer values before trying to extract with
	mpz_get_si.

2023-01-23  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/108420
	* iresolve.cc (check_charlen_present): Preserve character length if
	there is no array constructor.

2023-01-21  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/102595
	* data.cc (gfc_assign_data_value): Remove check for PARAMETER in DATA.
	* primary.cc (match_variable): Add check for PARAMETER in DATA.

2023-01-19  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/108434
	* expr.cc (class_allocatable): Prevent NULL pointer dereference
	or invalid read.
	(class_pointer): Likewise.

2023-01-17  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/108421
	* interface.cc (get_expr_storage_size): Check that we actually have
	an integer value before trying to extract it with mpz_get_si.

2023-01-12  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/107706
	* openmp.cc (gfc_resolve_omp_assumptions): Reject nonscalars.

2023-01-11  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/108349
	* f95-lang.cc (gfc_init_builtin_function): Fix up function types
	for BUILT_IN_REALLOC and BUILT_IN_SINCOS{F,,L}.  Formatting fixes.

2023-01-10  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/97345
	* frontend-passes.cc (do_subscript): Clear used gmp variables.

2023-01-02  Jakub Jelinek  <jakub@redhat.com>

	* gfortranspec.cc (lang_specific_driver): Update copyright notice
	dates.
	* gfc-internals.texi: Bump @copying's copyright year.
	* gfortran.texi: Ditto.
	* intrinsic.texi: Ditto.
	* invoke.texi: Ditto.


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