path: root/gcc/fortran/ChangeLog

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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