path: root/gcc/fortran/ChangeLog

2013-05-22  Tobias Burnus  <burnus@net-b.de>

	* resolve.c (get_temp_from_expr): Change mangling to
	start always with a _.

2013-05-22  Tobias Burnus  <burnus@net-b.de>

	* resolve.c (get_temp_from_expr): Fix temp var mangling.

2013-05-22  Tobias Burnus  <burnus@net-b.de>

	PR fortran/57364
	* resolve.c (get_temp_from_expr): Commit created sym.

2013-05-22  Tobias Burnus  <burnus@net-b.de>

	PR fortran/57338
	* intrinsic.c (do_check): Move some checks to ...
	(do_ts29113_check): ... this new function.
	(check_specific, gfc_intrinsic_sub_interface): Call it.

2013-05-22  Janne Blomqvist  <jb@gcc.gnu.org>

	* intrinsic.texi (RANDOM_SEED): Improve example.

2013-05-21  Tobias Burnus  <burnus@net-b.de>

	PR fortran/57035
	* intrinsic.c (do_check): Add constraint check for
	NO_ARG_CHECK, assumed rank and assumed type.
	* gfortran.texi (NO_ARG_CHECK): Minor wording change,
	allow PRESENT intrinsic.

2013-05-20  Tobias Burnus  <burnus@net-b.de>

	PR fortran/48858
	PR fortran/55465
	* decl.c (add_global_entry): Add sym_name.
	* parse.c (add_global_procedure): Ditto.
	* resolve.c (resolve_bind_c_derived_types): Handle multiple decl for
	a procedure.
	(resolve_global_procedure): Handle gsym->ns pointing to a module.
	* trans-decl.c (gfc_get_extern_function_decl): Ditto.

2013-05-20  Tobias Burnus  <burnus@net-b.de>

	PR fortran/48858
	* decl.c (add_global_entry): Use nonbinding name
	only for F2003 or if no binding label exists.
	(gfc_match_entry): Update calls.
	* parse.c (gfc_global_used): Improve error message.
	(add_global_procedure): Use nonbinding name
	only for F2003 or if no binding label exists.
	(gfc_parse_file): Update call.
	* resolve.c (resolve_global_procedure): Use binding
	name when available.
	* trans-decl.c (gfc_get_extern_function_decl): Ditto.

2013-05-20  Tobias Burnus  <burnus@net-b.de>

	PR fortran/48858
	* decl.c (gfc_match_bind_c_stmt): Add gfc_notify_std.
	* match.c (gfc_match_common): Don't add commons to gsym.
	* resolve.c (resolve_common_blocks): Add to gsym and
	add checks.
	(resolve_bind_c_comms): Remove.
	(resolve_types): Remove call to the latter.
	* trans-common.c (gfc_common_ns): Remove static var.
	(gfc_map_of_all_commons): Add static var.
	(build_common_decl): Correctly handle binding label.

2013-05-16  Jason Merrill  <jason@redhat.com>

	* Make-lang.in (f951$(exeext)): Use link mutex.

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

	* resolve.c (conformable_arrays): Avoid segfault
	when ar.start[i] == NULL.

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

	PR fortran/57141
	* decl.c (gfc_match_null): Permit use-associated
	NULL intrinsic.

2013-05-04  Tobias Burnus  <burnus@net-b.de>

	* decl.c (gfc_verify_c_interop_param): Permit allocatable
	and pointer with -std=f2008ts.

2013-05-02  Tobias Burnus  <burnus@net-b.de>

	PR fortran/57142
	* simplify.c (gfc_simplify_size): Renamed from
	simplify_size; fix kind=8 handling.
	(gfc_simplify_size): New function.
	(gfc_simplify_shape): Add range check.
	* resolve.c (resolve_function): Fix handling
	for ISYM_SIZE.

2013-05-01  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* frontend-passes.c (optimize_power):  Fix typo
	in comment.

2013-04-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/57071
	* frontend-passes.c (optimize_power):  Simplify
	1**k to 1.

2013-04-28  Tobias Burnus  <burnus@net-b.de>

	PR fortran/57114
	* intrinsic.texi (RANK): Correct syntax description and
	expected result.

2013-04-28  Tobias Burnus  <burnus@net-b.de>

	PR fortran/57093
	* trans-types.c (gfc_get_element_type): Fix handling
	of scalar coarrays of type character.
	* intrinsic.texi (PACK): Add missing ")".

2013-04-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/57071
	* frontend-passes (optimize_power):  New function.
	(optimize_op):  Use it.

2013-04-25  Janne Blomqvist  <jb@gcc.gnu.org>

	PR bootstrap/57028
	* Make-lang.in (f951): Link in ZLIB.
	(CFLAGS-fortran/module.o): Add zlib include directory.

2013-04-22  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/53685
	PR fortran/57022
	* check.c (gfc_calculate_transfer_sizes): Fix for array-valued SOURCE
	expressions.
	* simplify.c (gfc_simplify_sizeof,gfc_simplify_storage_size): Get rid
	of special treatment for EXPR_ARRAY.
	* 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.

2013-04-20  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56907
	* trans-intrinsic.c (conv_isocbinding_function): Don't pack array
	passed to C_LOC

2013-04-19  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  Tobias Burnus  <burnus@net-b.de>

	* expr.c (find_array_element): Don't copy expr.
	* data.c (create_character_initializer): Free expr.
	* frontend-passes.c (combine_array_constructor): Ditto.
	* match.c (match_typebound_call, gfc_match_select_type): Ditto.
	* resolve.c (resolve_typebound_function): Free gfc_ref.

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

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

2013-04-17  Janus Weil  <janus@gcc.gnu.org>

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

2013-04-17  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/40958
	* scanner.h: New file.
	* Make-lang.in: Dependencies on scanner.h.
	* scanner.c (gfc_directorylist): Move to scanner.h.
	* module.c: Don't include md5.h, include scanner.h and zlib.h.
	(MOD_VERSION): Add comment about backwards compatibility.
	(module_fp): Change type to gzFile.
	(ctx): Remove.
	(gzopen_included_file_1): New function.
	(gzopen_included_file): New function.
	(gzopen_intrinsic_module): New function.
	(write_char): Use gzputc.
	(read_crc32_from_module_file): New function.
	(read_md5_from_module_file): Remove.
	(gfc_dump_module): Use gz* functions instead of stdio, check gzip
	crc32 instead of md5.
	(read_module_to_tmpbuf): Use gz* functions instead of stdio.
	(gfc_use_module): Use gz* functions.

2013-04-16  Tobias Burnus  <burnus@net-b.de>

	PR fortran/39505
	* decl.c (ext_attr_list): Add EXT_ATTR_NO_ARG_CHECK.
	* gfortran.h (ext_attr_id_t): Ditto.
	* gfortran.texi (GNU Fortran Compiler Directives):
	Document it.
	* interface.c (compare_type_rank): Ignore rank for NO_ARG_CHECK.
	(compare_parameter): Ditto - and regard as unlimited polymorphic.
	* resolve.c (resolve_symbol, resolve_variable): Add same constraint
	checks as for TYPE(*); turn dummy to TYPE(*),dimension(*).
	(gfc_explicit_interface_required): Require explicit interface
	for NO_ARG_CHECK.

2013-04-16  Janus Weil  <janus@gcc.gnu.org>

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

2013-04-16  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56969
	* intrinsic.c (gfc_intrinsic_func_interface): Don't set
	module name to "(intrinsic)" for intrinsics from intrinsic
	modules.

2013-04-15  Tobias Burnus  <burnus@net-b.de>

	* intrinsic.texi (SYSTEM_CLOCK): Recommend kind=8.

2013-04-15  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/56919
	* intrinsics.texi (SYSTEM_CLOCK): Update documentation.

2013-04-15  Tobias Burnus  <burnus@net-b.de>

	* class.c (gfc_find_intrinsic_vtab): Removed unused var.
	* dependency.c (check_data_pointer_types): Fix check.
	* frontend-passes.c (check_data_pointer_types): Remove
	superfluous statement.
	* parse.c (decode_omp_directive): Add missing break.
	* resolve.c (resolve_typebound_subroutine: Free variable.
	* trans-decl.c (create_function_arglist): Correct condition.

2013-04-14  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.

2013-04-13  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/55959
	* expr.c (gfc_simplify_expr): Branch is not unreachable.

2013-04-12  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/56266
	* primary.c (gfc_match_varspec): Turn gcc_assert into MATCH_ERROR.

2013-04-12  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56929
	* trans-array.c (duplicate_allocatable): Fix handling
	of scalar coarrays.

2013-04-12  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/56261
	* gfortran.h (gfc_explicit_interface_required): New prototype.
	* expr.c (gfc_check_pointer_assign): Check if an explicit interface is
	required in a proc-ptr assignment.
	* interface.c (check_result_characteristics): Extra check.
	* resolve.c (gfc_explicit_interface_required): New function.
	(resolve_global_procedure): Use new function
	'gfc_explicit_interface_required'. Do a full interface check.

2013-04-12  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56845
	* trans-decl.c (gfc_trans_deferred_vars): Restrict
	static CLASS init to SAVE and -fno-automatic.

2013-04-12  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56845
	* trans-decl.c (gfc_trans_deferred_vars): Set _vptr for
	allocatable static BT_CLASS.
	* trans-expr.c (gfc_class_set_static_fields): New function.
	* trans.h (gfc_class_set_static_fields): New prototype.

2013-04-11  Janne Blomqvist  <jb@gcc.gnu.org>

	* gfortran.h: Remove enum gfc_try, replace gfc_try with bool type.
	* arith.c: Replace gfc_try with bool type.
	* array.c: Likewise.
	* check.c: Likewise.
	* class.c: Likewise.
	* cpp.c: Likewise.
	* cpp.h: Likewise.
	* data.c: Likewise.
	* data.h: Likewise.
	* decl.c: Likewise.
	* error.c: Likewise.
	* expr.c: Likewise.
	* f95-lang.c: Likewise.
	* interface.c: Likewise.
	* intrinsic.c: Likewise.
	* intrinsic.h: Likewise.
	* io.c: Likewise.
	* match.c: Likewise.
	* match.h: Likewise.
	* module.c: Likewise.
	* openmp.c: Likewise.
	* parse.c: Likewise.
	* parse.h: Likewise.
	* primary.c: Likewise.
	* resolve.c: Likewise.
	* scanner.c: Likewise.
	* simplify.c: Likewise.
	* symbol.c: Likewise.
	* trans-intrinsic.c: Likewise.
	* trans-openmp.c: Likewise.
	* trans-stmt.c: Likewise.
	* trans-types.c: Likewise.

2013-04-09  Tobias Burnus  <burnus@net-b.de>

	* gfortran.texi (KIND Type Parameters,
	Internal representation of LOGICAL variables): Add crossrefs.
	(Intrinsic Types): Mention issues with _Bool interop.
	(Naming and argument-passing conventions): New section.

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

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

2013-04-07  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56849
	* iresolve.c (gfc_resolve_reshape): Set shape also
	with order=.

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

	PR fortran/40881
	* match.c (gfc_match_return): Remove standard notification.
	* primary.c (gfc_match_actual_arglist): Add standard notification.

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

	PR fortran/50269
	* gcc/fortran/check.c (is_c_interoperable,
	gfc_check_c_loc): Correct c_loc array checking
	for Fortran 2003 and Fortran 2008.

2013-04-03  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/56284
	PR fortran/40881
	* decl.c (gfc_match_formal_arglist): Warn about alternate-return
	arguments.
	* interface.c (check_dummy_characteristics): Return if symbols are NULL.

2013-04-01  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/56500
	* symbol.c (gfc_set_default_type): Build class container for
	IMPLICIT CLASS.

2013-03-31  Tobias Burnus  <burnus@net-b.de>

	* class.c (finalization_scalarizer, finalizer_insert_packed_call,
	generate_finalization_wrapper): Avoid segfault with absent SIZE=
	argment to TRANSFER and use correct result kind for SIZE.
	* intrinsic.c (gfc_isym_id_by_intmod): Also handle ids of
	nonmodules.
	* trans.c (gfc_build_final_call): Handle coarrays.

2013-03-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* trans-expr.c (build_memcmp_call):  New function.
	(gfc_build_compare_string):  If the strings
	compared have constant and equal lengths and
	the strings are kind=1, or, for kind=4 strings,
	the test is for (in)equality, use memcmp().

2013-03-29  Tobias Burnus  <burnus@net-b.de>

	PR fortran/35203
	* trans-decl.c (create_function_arglist): Pass hidden argument
	for passed-by-value optional+value dummies.
	* trans-expr.c (gfc_conv_expr_present,
	gfc_conv_procedure_call): Handle those.

2013-03-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/45159
	* gfortran.h (gfc_dep_difference):  Add prototype.
	* dependency.c (discard_nops):  New function.
	(gfc_dep_difference):  New function.
	(check_section_vs_section):  Use gfc_dep_difference
	to calculate the difference of starting indices.
	* trans-expr.c (gfc_conv_substring):  Use
	gfc_dep_difference to calculate the length of
	substrings where possible.

2013-03-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/55806
	* frontend-passes.c (optimize_code):  Keep track of
	current code to make code insertion possible.
	(combine_array_constructor):  New function.
	(optimize_op):  Call it.

2013-03-27  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56650
	PR fortran/36437
	* check.c (gfc_check_sizeof, gfc_check_c_sizeof,
	gfc_check_storage_size): Update checks.
	* intrinsic.texi (SIZEOF): Correct class.
	* intrinsic.h (gfc_simplify_sizeof,
	gfc_simplify_storage_size): New prototypes.
	* intrinsic.c (add_functions): Use them.
	* simplify.c (gfc_simplify_sizeof,
	gfc_simplify_storage_size): New functions.

2013-03-27  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/25708
	* module.c (module_locus): Use long for position.
	(module_content): New variable.
	(module_pos): Likewise.
	(prev_character): Remove.
	(bad_module): Free data instead of closing mod file.
	(set_module_locus): Use module_pos.
	(get_module_locus): Likewise.
	(module_char): use buffer rather than stdio file.
	(module_unget_char): Likewise.
	(read_module_to_tmpbuf): New function.
	(gfc_use_module): Call read_module_to_tmpbuf.

2013-03-26  Tobias Burnus  <burnus@net-b.de>

	PR fortran/56649
	* simplify.c (gfc_simplify_merge): Simplify more.

2013-03-25  Tobias Burnus  <burnus@net-b.de>

	PR fortran/38536
	PR fortran/38813
	PR fortran/38894
	PR fortran/39288
	PR fortran/40963
	PR fortran/45824
	PR fortran/47023
	PR fortran/47034
	PR fortran/49023
	PR fortran/50269
	PR fortran/50612
	PR fortran/52426
	PR fortran/54263
	PR fortran/55343
	PR fortran/55444
	PR fortran/55574
	PR fortran/56079
	PR fortran/56378
	* check.c (gfc_var_strlen): Properly handle 0-sized string.
	(gfc_check_c_sizeof): Use is_c_interoperable, add checks.
	(is_c_interoperable, gfc_check_c_associated, gfc_check_c_f_pointer,
	gfc_check_c_f_procpointer, gfc_check_c_funloc, gfc_check_c_loc): New
	functions.
	* expr.c (check_inquiry): Add c_sizeof, compiler_version and
	compiler_options.
	(gfc_check_pointer_assign): Refine function result check.
	gfortran.h (gfc_isym_id): Add GFC_ISYM_C_ASSOCIATED,
	GFC_ISYM_C_F_POINTER, GFC_ISYM_C_F_PROCPOINTER, GFC_ISYM_C_FUNLOC,
	GFC_ISYM_C_LOC.
	(iso_fortran_env_symbol, iso_c_binding_symbol): Handle
	NAMED_SUBROUTINE.
	(generate_isocbinding_symbol): Update prototype.
	(get_iso_c_sym): Remove.
	(gfc_isym_id_by_intmod, gfc_isym_id_by_intmod_sym): New prototypes.
	* intrinsic.c (gfc_intrinsic_subroutine_by_id): New function.
	(gfc_intrinsic_sub_interface): Use it.
	(add_functions, add_subroutines): Add missing C-binding intrinsics.
	(gfc_intrinsic_func_interface): Add special case for c_loc.
	gfc_isym_id_by_intmod, gfc_isym_id_by_intmod_sym): New functions.
	(gfc_intrinsic_func_interface, gfc_intrinsic_sub_interface): Use them.
	* intrinsic.h (gfc_check_c_associated, gfc_check_c_f_pointer,
	gfc_check_c_f_procpointer, gfc_check_c_funloc, gfc_check_c_loc,
	gfc_resolve_c_loc, gfc_resolve_c_funloc): New prototypes.
	* iresolve.c (gfc_resolve_c_loc, gfc_resolve_c_funloc): New
	functions.
	* iso-c-binding.def: Split PROCEDURE into NAMED_SUBROUTINE and
	NAMED_FUNCTION.
	* iso-fortran-env.def: Add NAMED_SUBROUTINE for completeness.
	* module.c (create_intrinsic_function): Support subroutines and
	derived-type results.
	(use_iso_fortran_env_module): Update calls.
	(import_iso_c_binding_module): Ditto; update calls to
	generate_isocbinding_symbol.
	* resolve.c (find_arglists): Skip for intrinsic symbols.
	(gfc_resolve_intrinsic): Find intrinsic subs via id.
	(is_scalar_expr_ptr, gfc_iso_c_func_interface,
	set_name_and_label, gfc_iso_c_sub_interface): Remove.
	(resolve_function, resolve_specific_s0): Remove calls to those.
	(resolve_structure_cons): Fix handling.
	* symbol.c (gen_special_c_interop_ptr): Update c_ptr/c_funptr
	generation.
	(gen_cptr_param, gen_fptr_param, gen_shape_param,
	build_formal_args, get_iso_c_sym): Remove.
	(std_for_isocbinding_symbol): Handle NAMED_SUBROUTINE.
	(generate_isocbinding_symbol): Support hidden symbols and
	using c_ptr/c_funptr symtrees for nullptr defs.
	* target-memory.c (gfc_target_encode_expr): Fix handling
	of c_ptr/c_funptr.
	* trans-expr.c (conv_isocbinding_procedure): Remove.
	(gfc_conv_procedure_call): Remove call to it.
	(gfc_trans_subcomponent_assign, gfc_conv_expr): Update handling
	of c_ptr/c_funptr.
	* trans-intrinsic.c (conv_isocbinding_function,
	conv_isocbinding_subroutine): New.
	(gfc_conv_intrinsic_function, gfc_conv_intrinsic_subroutine):
	Call them.
	* trans-io.c (transfer_expr): Fix handling of c_ptr/c_funptr.
	* trans-types.c (gfc_typenode_for_spec,
	gfc_get_derived_type): Ditto.
	(gfc_init_c_interop_kinds): Handle NAMED_SUBROUTINE.

2013-03-18  Tobias Burnus  <burnus@net-b.de>

	* gfortran.h (gfc_option_t): Remove flag_whole_file.
	* invoke.texi (-fno-whole-file): Remove.
	* lang.opt (fwhole-file): Change to Ignore.
	* options.c (gfc_init_options, gfc_post_options,
	gfc_handle_option): Remove !flag_whole_file handling
	* parse.c (resolve_all_program_units, translate_all_program_units,
	gfc_parse_file): Ditto.
	* resolve.c (resolve_global_procedure): Ditto.
	* trans-decl.c (gfc_get_symbol_decl, gfc_get_extern_function_decl,
	gfc_create_module_variable): Ditto.
	* trans-types.c (gfc_get_derived_type): Ditto.

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.

2013-02-21  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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