2013-04-26  Janus Weil  <janus@gcc.gnu.org>

	Backports from trunk:

	PR fortran/56814
	* interface.c (check_result_characteristics): Get result from interface
	if present.

	PR fortran/56968
	* expr.c (gfc_check_pointer_assign): Handle generic functions returning
	procedure pointers.

	PR fortran/53685
	PR fortran/57022
	* check.c (gfc_calculate_transfer_sizes): Fix for array-valued SOURCE
	expressions.
	* target-memory.h (gfc_element_size): New prototype.
	* target-memory.c (size_array): Remove.
	(gfc_element_size): New function.
	(gfc_target_expr_size): Modified to always return the full size of the
	expression.

2013-04-22  Thomas Koenig  <tkoenig@gcc.gnu.org>
	    Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/56872
	* frontend-passes.c (copy_walk_reduction_arg): Change argument type
	to gfc_constructor.  If it has an iterator, wrap the copy of its
	expression in an array constructor with that iterator.  Don't special
	case function expressions.
	(callback_reduction): Update caller.  Don't return early if there is
	an iterator.

2013-04-18  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/56816
	* match.c (gfc_match_select_type): Add syntax error. Move namespace
	allocation and cleanup...
	* parse.c (decode_statement): ... here.

2013-04-18  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56994
	* invoke.texi (NEAREST): S argument is not optional.

2013-04-08  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/56782
	Backport fron trunk.
	* frontend-passes.c (callback_reduction):  Dont't do
	any simplification if there is only a single element
	which has an iterator.

2013-03-22  Release Manager

	* GCC 4.8.0 released.

2013-03-15  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56615
	* trans-intrinsic.c (gfc_conv_intrinsic_transfer): Pack arrays
	if they are not simply contiguous.

2013-03-11  Tobias Burnus  <burnus@net-b.de>

	* gfortran.texi (STRUCTURE and RECORD): State more clearly how
	to convert them into derived types.

2013-03-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/56575
	* expr.c (gfc_default_initializer): Check that a class declared
	type has any components.
	* resolve.c (resolve_fl_derived0): On failing the test for C437
	set the type to BT_UNKNOWN to prevent repeat error messages.

2013-03-03  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/56477
	* expr.c (gfc_check_pointer_assign): Avoid NULL pointer dereference.

2013-03-03  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/54730
	* array.c (gfc_match_array_constructor): Set a checkpoint before
	matching a typespec.  Drop it on success, restore it otherwise.

2013-03-03  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/54730
	* gfortran.h (struct gfc_undo_change_set): New field 'previous'.
	(gfc_new_undo_checkpoint, gfc_drop_last_undo_checkpoint,
	gfc_restore_last_undo_checkpoint): New prototypes.
	* symbol.c (default_undo_chgset_var): Update initialization.
	(single_undo_checkpoint_p, gfc_new_undo_checkpoint,
	free_undo_change_set_data, pop_undo_change_set,
	gfc_drop_last_undo_checkpoint, enforce_single_undo_checkpoint):
	New functions.
	(save_symbol_data): Handle multiple change sets.  Make sure old_symbol
	field's previous value is not overwritten.  Clear gfc_new field.
	(restore_old_symbol): Restore previous old_symbol field.
	(gfc_restore_last_undo_checkpoint): New function, using body renamed
	from gfc_undo_symbols.  Restore the previous change set as current one.
	(gfc_undo_symbols): New body.
	(gfc_commit_symbols, gfc_commit_symbol, gfc_enforce_clean_symbol_state):
	Call enforce_single_undo_checkpoint.
	(gfc_symbol_done_2): Ditto.  Free change set data.

2013-03-03  Mikael Morin  <mikael@gcc.gnu.org>

	* symbol.c (restore_old_symbol): Fix thinko.

2013-03-03  Mikael Morin  <mikael@gcc.gnu.org>

	* symbol.c (gfc_undo_symbols): Move code...
	(restore_old_symbol): ... here as a new function.

2013-03-03  Mikael Morin  <mikael@gcc.gnu.org>

	* Make-lang.in (F95_PARSER_OBJS): Add dependency to vec.h.
	* gfortran.h: Include vec.h.
	(gfc_undo_change_set): New struct.
	* symbol.c (tentative_tbp): Remove struct.
	(changed_syms, tentative_tbp_list): Remove variables.
	(default_undo_chgset_var, latest_undo_chgset): New variables.
	(save_symbol_data, gfc_get_sym_tree, gfc_undo_symbols,
	gfc_commit_symbols, gfc_commit_symbol,
	gfc_enforce_clean_symbol_state, gfc_get_typebound_proc):
	Use latest_undo_chgset instead of changed_syms and tentative_tbp_list.

2013-03-01  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56491
	* iresolve.c (resolve_bound): Use gfc_get_string instead of xstrdup.
	* symbol.c (free_components): Free proc-pointer components.

2013-03-01  Tobias Burnus  <burnus@net-b.de>

	* trans-decl.c (gfc_trans_deferred_vars): Free expr after use.
	* trans-io.c (build_dt): Ditto.

2013-02-24  Joseph Myers  <joseph@codesourcery.com>

	* resolve.c (generate_component_assignments): Don't use UTF-8
	ligature in diagnostic.

2013-02-21  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/56385
	* trans-array.c (structure_alloc_comps): Handle procedure-pointer
	components with allocatable result.

2012-02-21  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56416
	* gfortran.texi (Part II: Language Reference, Extensions,
	Non-Fortran Main Program): Sort @menu to match actual section order.
	* intrinsic.texi (Intrinsic Procedures): Ditto.
	(C_F_POINTER, PRECISION): Move to the alphabetically correct place.

2013-02-15  Tobias Burnus  <burnus@net-b.de>
	    Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/56318
	* simplify.c (gfc_simplify_matmul): Fix result shape
	and matmul result.

2013-02-15  Tobias Burnus  <burnus@net-b.de>

	PR fortran/53818
	* resolve.c (apply_default_init_local): Don't create an
	initializer for a result variable.

2013-02-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/56224
	* gfortran.h (gfc_add_include_path):  Add boolean argument
	for warn.
	* scanner.c (gfc_add_include_path):  Pass along warn argument
	to add_path_to_list.
	* options.c (gfc_post_options):  Add true warn argument to
	gfc_add_include_path.
	(gfc_handle_module_path_options):  Likewise.
	(gfc_handle_option): Also gfc_add_include_path for intrinsic
	modules, without warning.

2013-02-14  Paul Thomas  <pault@gcc.gnu.org>
	    Tobias Burnus  <burnus@net-b.de>

	PR testsuite/56138
	* trans-decl.c (gfc_get_symbol_decl): Fix deferred-length
	results for functions without extra result variable.

	Revert:
	2013-01-30  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56138
	* trans-decl.c (gfc_trans_deferred_vars): Fix deferred-length
	results for functions without extra result variable.

2013-02-12  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/46952
	* resolve.c (resolve_call): Do not check deferred procedures for
	recursiveness.

2013-02-09  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/55362
	* check.c (array_check): It is an error if a procedure is
	passed.

2013-02-08  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/54107
	* trans-types.c (gfc_get_function_type): Change a NULL backend_decl
	to error_mark_node on entry.  Detect recursive types.  Build a variadic
	procedure type if the type is recursive.  Restore the initial
	backend_decl.

2013-02-07  Tobias Burnus  <burnus@net-b.de>

	PR fortran/54339
	* gfortran.texi (Standards): Mention TS29113.
	(Varying Length Character): Mention deferred-length
	strings.
	(Fortran 2003 Status): Add unlimited polymorphic.
	(TS 29113 Status): Add TYPE(*) and DIMENSION(..).
	(C Interop): Update the section about TS29113.

2013-02-06 Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/55789
	* trans-array.c (trans_array_constructor): Remove condition
	'dynamic' = true if the loop ubound is a VAR_DECL.

2013-02-04  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/56008
	PR fortran/47517
	* trans-array.c (gfc_alloc_allocatable_for_assignment): Save
	the lhs descriptor before it is modified for reallocation. Use
	it to deallocate allocatable components in the reallocation
	block.  Nullify allocatable components for newly (re)allocated
	arrays.

2013-02-04  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/54195
	* resolve.c (resolve_typebound_procedures): Recurse through
	resolve_symbol.

2013-02-04  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/54107
	PR fortran/54195
	* gfortran.h (struct gfc_symbol): New field 'resolved'.
	* resolve.c (resolve_fl_var_and_proc): Don't skip result symbols.
	(resolve_symbol): Skip duplicate calls.  Don't check the current
	namespace.

2013-02-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/50627
	PR fortran/56054
	* decl.c (gfc_match_end):  Remove half-ready namespace
	from parent if the end of a block is missing.
	* parse.c (parse_module):  Do not put namespace into
	gsymbol on error.

2013-01-30  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56138
	* trans-decl.c (gfc_trans_deferred_vars): Fix deferred-length
	results for functions without extra result variable.

2013-01-29  Janus Weil  <janus@gcc.gnu.org>
	    Mikael Morin <mikael@gcc.gnu.org>

	PR fortran/54107
	* gfortran.h (gfc_component): Delete members 'formal' and 'formal_ns'.
	(gfc_copy_formal_args,gfc_copy_formal_args_ppc,gfc_expr_replace_symbols,
	gfc_expr_replace_comp): Delete.
	(gfc_sym_get_dummy_args): New prototype.
	* dependency.c (gfc_check_fncall_dependency): Use
	'gfc_sym_get_dummy_args'.
	* expr.c (gfc_is_constant_expr): Ditto.
	(replace_symbol,gfc_expr_replace_symbols,replace_comp,
	gfc_expr_replace_comp): Deleted.
	* frontend-passes.c (doloop_code,do_function): Use
	'gfc_sym_get_dummy_args'.
	* interface.c (gfc_check_operator_interface,gfc_compare_interfaces,
	gfc_procedure_use,gfc_ppc_use,gfc_arglist_matches_symbol,
	gfc_check_typebound_override): Ditto.
	* module.c (MOD_VERSION): Bump module version.
	(mio_component): Do not read/write 'formal' and 'formal_ns'.
	* resolve.c (resolve_procedure_interface,resolve_fl_derived0): Do not
	copy formal args, but just keep a pointer to the interface.
	(resolve_function,resolve_call,resolve_typebound_generic_call,
	resolve_ppc_call,resolve_expr_ppc,generate_component_assignments,
	resolve_fl_procedure,gfc_resolve_finalizers,check_generic_tbp_ambiguity,
	resolve_typebound_procedure,check_uop_procedure): Use
	'gfc_sym_get_dummy_args'.
	* symbol.c (free_components): Do not free 'formal' and 'formal_ns'.
	(gfc_copy_formal_args,gfc_copy_formal_args_ppc): Deleted.
	(gfc_sym_get_dummy_args): New function.
	* trans-array.c (get_array_charlen,gfc_walk_elemental_function_args):
	Use 'gfc_sym_get_dummy_args'.
	* trans-decl.c (build_function_decl,create_function_arglist,
	build_entry_thunks,init_intent_out_dt,gfc_trans_deferred_vars,
	add_argument_checking): Ditto.
	* trans-expr.c (gfc_map_fcn_formal_to_actual,gfc_conv_procedure_call,
	gfc_conv_statement_function): Ditto.
	* trans-stmt.c (gfc_conv_elemental_dependencies): Ditto.
	* trans-types.c (create_fn_spec,gfc_get_function_type): Ditto.

2013-01-28  Tobias Burnus  <burnus@net-b.de>
	    Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/53537
	* symbol.c (gfc_find_sym_tree): Don't look for the symbol outside an
	interface block.
	(gfc_get_ha_symtree): Let gfc_find_sym_tree lookup the parent namespace.
	* decl.c (gfc_match_data_decl): Ditto.
	(variable_decl): Remove undeclared type error.
	(gfc_match_import): Use renamed instead of original name.

2013-01-27 Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/55984
	PR fortran/56047
	* gfortran.h : Add associate_var to symbol_attr.
	* resolve.c (resolve_assoc_var): Set associate_var attribute.
	If the target class_ok is set, set it for the associate
	variable.
	* check.c (allocatable_check): Associate variables should not
	have the allocatable attribute even if their symbols do.
	* class.c (gfc_build_class_symbol): Symbols with associate_var
	set will always have a good class container.

2013-01-23  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/56081
	* resolve.c (resolve_select): Add argument 'select_type', reject
	non-scalar expressions.
	(resolve_select_type,resolve_code): Pass new argument to
	'resolve_select'.

2013-01-23  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/56052
	* trans-decl.c (gfc_get_symbol_decl): Set DECL_ARTIFICIAL
	and DECL_IGNORED_P on select_type_temporary and don't set
	DECL_BY_REFERENCE.

2013-01-21  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/55919
	* scanner.c (add_path_to_list): Copy path to temporary and strip
	trailing directory separators before calling stat().

2013-01-17  Richard Biener  <rguenther@suse.de>

	* trans-stmt.c (gfc_trans_do): Conditionally compute countm1
	dependent on sign of step, avoids repeated evaluation of
	step sign test.  Avoid undefined overflow issues by using unsigned
	arithmetic.

2013-01-16  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/55983
	* class.c (find_typebound_proc_uop): Check for f2k_derived instead of
	asserting it.

2013-01-16  Jakub Jelinek  <jakub@redhat.com>
	    Tobias Burnus  <burnus@net-b.de>

	PR driver/55884
	* lang.opt (fintrinsic-modules-path): Don't accept Joined.
	(fintrinsic-modules-path=): New.
	* options.c (gfc_handle_option, gfc_get_option_string,
	gfc_get_option_string): Handle the latter.

2013-01-16  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/52865
	* trans-stmt.c (gfc_trans_do): Put countm1-- before conditional
	and use value of countm1 before the decrement in the condition.

2013-01-15  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/54286
	* expr.c (gfc_check_pointer_assign): Check for presence of
	's2' before using it.

2013-01-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/55806
	* frontend-passes.c (optimize_reduction):  New function,
	including prototype.
	(callback_reduction):  Likewise.
	(gfc_run_passes):  Also run optimize_reduction.
	(copy_walk_reduction_arg):  New function.
	(dummy_code_callback):  New function.

2013-01-13  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/55935
	* trans-expr.c (gfc_conv_structure): Call
	unshare_expr_without_location on the ctor elements.

2013-01-13  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/54286
	* expr.c (gfc_check_pointer_assign): Ensure that both lvalue
	and rvalue interfaces are presented to gfc_compare_interfaces.
	Simplify references to interface names by using the symbols
	themselves. Call gfc_compare_interfaces with s1 and s2 inter-
	changed to overcome the asymmetry of this function. Do not
	repeat the check for the presence of s1 and s2.

2013-01-12  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/55072
	* trans-array.c (gfc_conv_array_parameter): No packing was done for
	full arrays of derived type.

2013-01-08  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/55868
	* class.c (get_unique_type_string): Change $tar to STAR and
	replace sprintf by strcpy where there is no formatting.
	* decl.c (gfc_match_decl_type_spec): Change $tar to STAR.

2013-01-09  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/47203
	* module.c (check_for_ambiguous): Get the current program unit using
	gfc_current_ns.

2013-01-09  Tobias Burnus  <burnus@net-b.de>

	PR fortran/55758
	* resolve.c (resolve_symbol): Reject non-C_Bool logicals
	in BIND(C) procedures with -std=f*.

2013-01-08  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/55618
	* trans-expr.c (gfc_conv_procedure_call): Dereference scalar
	character function arguments to elemental procedures in
	scalarization loops.

2013-01-07  Tobias Burnus  <burnus@net-b.de>

	PR fortran/55763
	* gfortran.h (gfc_check_assign_symbol): Update prototype.
	* decl.c (add_init_expr_to_sym, do_parm): Update call.
	* expr.c (gfc_check_assign_symbol): Handle BT_CLASS and
	improve error location; support components.
	(gfc_check_pointer_assign): Handle component assignments.
	* resolve.c (resolve_fl_derived0): Call gfc_check_assign_symbol.
	(resolve_values): Update call.
	(resolve_structure_cons): Avoid double diagnostic.

2013-01-07  Tobias Burnus  <burnus@net-b.de>
	    Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/55852
	* expr.c (gfc_build_intrinsic_call): Avoid clashes
	with user's procedures.
	* gfortran.h (gfc_build_intrinsic_call): Update prototype.
	* simplify.c (gfc_simplify_size): Update call.
	* class.c (finalization_scalarizer, finalization_get_offset,
	finalizer_insert_packed_call, generate_finalization_wrapper):
	Clean up by using gfc_build_intrinsic_call.

2013-01-07  Tobias Burnus  <burnus@net-b.de>

	PR fortran/55763
	* resolve.c (resolve_select_type): Reject intrinsic types for
	a non-unlimited-polymorphic selector.

2013-01-06  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/53876
	PR fortran/54990
	PR fortran/54992
	* trans-array.c (build_array_ref): Check the TYPE_CANONICAL
	to see if it is GFC_CLASS_TYPE_P.
	* trans-expr.c (gfc_get_vptr_from_expr): The same.
	(gfc_conv_class_to_class): If the types are not the same,
	cast parmese->expr to the type of ctree.
	* trans-types.c (gfc_get_derived_type): GFC_CLASS_TYPE_P of
	CLASS components must be set.

2013-01-06  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/42769
	PR fortran/45836
	PR fortran/45900
	* module.c (read_module): Don't reuse local symtree if the associated
	symbol isn't exactly the one wanted.  Don't reuse local symtree if it is
	ambiguous.
	* resolve.c (resolve_call): Use symtree's name instead of symbol's to
	lookup the symtree.

2013-01-05  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/55827
	* class.c (gfc_fix_class_refs): Adapt ts initialization for the case
	e->symtree == NULL.
	* trans-expr.c (gfc_conv_function_expr): Init sym earlier. Use it.

2013-01-05  Tobias Burnus  <burnus@net-b.de>

	* class.c (finalize_component): Used passed offset expr.
	(finalization_get_offset): New static function.
	(finalizer_insert_packed_call, generate_finalization_wrapper): Use it
	to handle noncontiguous arrays.

2013-01-04  Tobias Burnus  <burnus@net-b.de>

	* trans.c (gfc_build_final_call): New function.
	* trans.h (gfc_build_final_call, gfc_conv_scalar_to_descriptor):
	New function prototypes.
	* trans-expr.c (gfc_conv_scalar_to_descriptor): Renamed from
	conv_scalar_to_descriptor, removed static attribute.
	(gfc_conv_procedure_call): Honor renaming.

2013-01-04  Tobias Burnus  <burnus@net-b.de>

	* intrinsic.c (add_functions): New internal intrinsic
	function GFC_PREFIX ("stride").
	* gfortran.h (gfc_isym_id): Add GFC_ISYM_STRIDE.
	* intrinsic.h (gfc_resolve_stride): New prototypes.
	* iresolve.c (gfc_resolve_stride): New function.
	* trans-intrinsic.c (conv_intrinsic_stride): New static
	function.
	(gfc_conv_intrinsic_function): Use it.

2013-01-04  Tobias Burnus  <burnus@net-b.de>

	* class.c (gfc_find_intrinsic_vtab): Add _final
	component.
	* decl.c (gfc_match_null): Remove superfluous
	variadic argument to gfc_match.

2013-01-04  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/55172
	* match.c (copy_ts_from_selector_to_associate): Remove call to
	gfc_resolve_expr and replace it with explicit setting of the
	array reference type.
	* resolve.c (resolve_select_type): It is an error if the
	selector is coindexed.

2013-01-04  Tobias Burnus  <burnus@net-b.de>

	PR fortran/55763
	* decl.c (gfc_match_null): Parse and reject MOLD.

2013-01-04  Tobias Burnus  <burnus@net-b.de>

	PR fortran/55854
	PR fortran/55763
	* class.c (gfc_class_null_initializer): Fix finding the vtab.
	(gfc_find_intrinsic_vtab): Use BT_VOID for some components.

2013-01-03  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/55855
	* expr.c (gfc_check_assign): Use 'gfc_expr_attr' to evaluate attributes
	of rvalue. Correct hyphenation in error message.

2013-01-03  Jakub Jelinek  <jakub@redhat.com>

	* gfortranspec.c (lang_specific_driver): Update copyright notice
	dates.

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