changelog

gcc-fortran,linux使用fortran的编译软件。很好用的。

2006-02-28  Release Manager

	* GCC 4.1.0 released.

2006-02-20  Erik Edelmann  <[e-mail]>

	PR fortran/26201
	* intrinsic.c (gfc_convert_type_warn): Call
	gfc_intrinsic_symbol() on the newly created symbol.

2006-02-14  Erik Edelmann  <[e-mail]>

	PR fortran/25806
	* trans-array.c (gfc_trans_allocate_array_storage): New argument
	dealloc; free the temporary only if dealloc is true.
	(gfc_trans_allocate_temp_array): New argument bool dealloc, to be
	passed onwards to gfc_trans_allocate_array_storage.
	(gfc_trans_array_constructor, gfc_conv_loop_setup): Update call to
	gfc_trans_allocate_temp_array.
	* trans-array.h (gfc_trans_allocate_temp_array): Update function
	prototype.
	* trans-expr.c (gfc_conv_function_call): Set new argument 'dealloc'
	to gfc_trans_allocate_temp_array to false in case of functions
	returning pointers.
	(gfc_trans_arrayfunc_assign): Return NULL for functions returning
	pointers.

2006-02-14  Francois-Xavier Coudert  <[e-mail]>

	PR libfortran/25425
	* trans-decl.c (gfc_generate_function_code): Add new argument,
	pedantic, to set_std call.

2006-02-13  Paul Thomas  <[e-mail]>

	PR fortran/26074
	PR fortran/25103
	* resolve.c (resolve_symbol): Extend the requirement that module
	arrays have constant bounds to those in the main program.  At the
	same time simplify the array bounds, to avoiding trapping parameter
	array references, and exclude automatic character length from main
	and modules. Rearrange resolve_symbol and resolve_derived to put as
	each flavor together, as much as is possible and move all specific
	code for flavors FL_VARIABLE, FL_PROCEDURE and FL_PARAMETER into new
	functions.
	(resolve_fl_var_and_proc, resolve_fl_variable, resolve_fl_procedure):
	New functions to do work of resolve_symbol.
	(resolve_index_expr): New function that is called from resolved_symbol
	and is extracted from resolve_charlen.
	(resolve_charlen): Call this new function.
	(resolve_fl_derived): Renamed resolve_derived to be consistent with
	the naming of the new functions for the other flavours.  Change the
	charlen checking so that the style is consistent with other similar
	checks. Add the generation of the gfc_dt_list, removed from resolve_
	symbol.

	PR fortran/20861
	* resolve.c (resolve_actual_arglist): Prevent internal procedures
	from being dummy arguments.

	PR fortran/20871
	* resolve.c (resolve_actual_arglist): Prevent pure but non-intrinsic
	procedures from being dummy arguments.

	PR fortran/25083
	* resolve.c (check_data_variable): Add test that data variable is in
	COMMON.

	PR fortran/25088
	* resolve.c (resolve_call): Add test that the subroutine does not
	have a type.

2006-02-13  Paul Thomas  <[e-mail]>

	PR fortran/26038
	* trans-stmt.c (gfc_trans_allocate): Provide assumed character length
	scalar with missing backend_decl for the hidden dummy charlen.

	PR fortran/25059
	* interface.c (gfc_extend_assign): Remove detection of non-PURE
	subroutine in assignment interface, with gfc_error, and put it in
	* resolve.c (resolve_code).

	PR fortran/25070
	* interface.c (gfc_procedure_use): Flag rank checking for non-
	elemental, contained or interface procedures in call to
	(compare_actual_formal), where ranks are checked for assumed
	shape arrays..

2006-02-11  Tobias Schl侟ter  <[e-mail]>

	Backport r110819 and r110840 from the trunk
	PR fortran/14771
	* gfortran.h (gfc_intrinsic_op): Add INTRINSIC_PARENTHESES.
	* dump-parse-tree (gfc_show_expr): Handle INTRINSIC_PARENTHESES.
	* expr.c (simplify_intrinsic_op): Treat INTRINSIC_PARENTHESES as
	if it were INTRINSIC_UPLUS.
	* resolve.c (resolve_operator): Handle INTRINSIC_PARENTHESES.
	* match.c (intrinsic_operators): Add INTRINSIC_PARENTHESES.
	* matchexp.c (match_primary): Record parentheses surrounding
	numeric expressions.
	* module.c (intrinsics): Add INTRINSIC_PARENTHESES for module
	dumping.
	* trans-expr.c (gfc_conv_expr_op): Handle INTRINSIC_PARENTHESES.

	PR fortran/14771
	* arith.c (eval_intrinsic): Accept INTRINSIC_PARENTHESES.
	* expr.c (check_intrinsic_op): Likewise.
	* module.c (mio_expr): Likewise.
	
2006-02-10  Steven G. Kargl  <[e-mail]>

	PR fortran/25756
	* symbol.c (gfc_free_st_label): Give variable meaningful name. Remove
	unneeded parenthesis. Fix-up the head of the list (2 lines gleaned
	from g95).

2006-02-10  Steven G. Kargl  <[e-mail]>

	PR fortran/20858
	*decl.c (variable_decl): Improve error message.  Remove initialization
	typespec.  Wrap long line.
	*expr.c (gfc_check_pointer_assign): Permit checking of type, kind type,
	and rank.
	*simplify.c (gfc_simplify_null): Ensure type, kind type, and rank
	are set.


2005-02-08  Thomas Koenig  <[e-mail]>

	PR libfortran/23815
	* gfortran.texi: Document the GFORTRAN_CONVERT_UNIT environment
	variable.
	* invoke.texi:  Mention the "Runtime" chapter.
	Document the -fconvert= option.
	* gfortran.h:  Add options_convert.
	* lang.opt:  Add fconvert=little-endian, fconvert=big-endian,
	fconvert=native and fconvert=swap.
	* trans-decl.c (top level):  Add gfor_fndecl_set_convert.
	(gfc_build_builtin_function_decls):  Set gfor_fndecl_set_convert.
	(gfc_generate_function_code):  If -fconvert was specified,
	and this is the main program, add a call to set_convert().
	* options.c:  Handle the -fconvert options.

2006-02-05  Jakub Jelinek  <[e-mail]>

	* resolve.c (resolve_symbol): Initialize constructor_expr to NULL.

2006-02-04  Thomas Koenig  <[e-mail]>

	PR fortran/26039
	PR fortran/25046
	* expr.c (gfc_check_conformance):  Reorder error message
	to avoid plural.
	* check.c(gfc_check_minloc_maxloc):  Call gfc_check_conformance
	for checking arguments array and mask.
	(check_reduction):  Likewise.

2006-02-03  Steven G. Kargl  <kargls@comcast>
	    Paul Thomas  <[e-mail]>

	PR fortran/20845
	* resolve.c (resolve_symbol): Default initialization of derived type
	component reguires the SAVE attribute.

2006-02-02  Steven G. Kargl  <kargls@comcast>

	PR fortran/24958
	match.c (gfc_match_nullify):  Free the list from head not tail.

	PR fortran/25072
	* match.c (match_forall_header): Fix internal error caused by bogus
	gfc_epxr pointers.

2005-01-31  Erik Edelmann  <[e-mail]>

	PR fortran/24266
	* trans-io.c (set_internal_unit): Check the rank of the
	expression node itself instead of its symbol.

2006-01-30  Paul Thomas  <[e-mail]>

	PR fortran/18578
	PR fortran/18579
	PR fortran/20857
	PR fortran/20885
	* interface.c (compare_actual_formal): Error for INTENT(OUT or INOUT)
	if actual argument is not a variable.

	PR fortran/17911
	* expr.c (gfc_check_assign, gfc_check_pointer_assign): Emit error if
	the lvalue is a use associated procedure.

	PR fortran/20895
	PR fortran/25030
	* expr.c (gfc_check_pointer_assign): Emit error if lvalue and rvalue
	character lengths are not the same.  Use gfc_dep_compare_expr for the
	comparison.
	* gfortran.h: Add prototype for gfc_dep_compare_expr.
	* dependency.h: Remove prototype for gfc_dep_compare_expr.

2005-01-27  Paul Thomas  <[e-mail]>

	PR fortran/25951
	* resolve.c (resolve_function): Add GFC_ISYM_LOC to the list of
	generic_ids exempted from assumed size checking.

	PR fortran/25964
	* resolve.c (resolve_function): Exclude statement functions from
	global reference checking.

	PR fortran/25084
	PR fortran/20852
	PR fortran/25085
	PR fortran/25086
	* resolve.c (resolve_function): Declare a gfc_symbol to replace the
	references through the symtree to the symbol associated with the
	function expresion. Give error on reference to an assumed character
	length function is defined in an interface or an external function
	that is not a dummy argument.
	(resolve_symbol): Give error if an assumed character length function
	is array-valued, pointer-valued, pure or recursive. Emit warning
	that character(*) value functions are obsolescent in F95.

	PR fortran/25416
	* trans-expr.c (gfc_conv_function_call): The above patch to resolve.c
	prevents any assumed character length function call from getting here
	except intrinsics such as SPREAD. In this case, ensure that no
	segfault occurs from referencing non-existent charlen->length->
	expr_type and provide a backend_decl for the charlen from the charlen
	of the first actual argument.

	Cure temp name confusion.
	* trans-expr.c (gfc_get_interface_mapping_array): Change name of
	temporary from "parm" to "ifm" to avoid clash with temp coming from
	trans-array.c.

	PR fortran/25124
	PR fortran/25625
	* decl.c (get_proc_name): If there is an existing
	symbol in the encompassing namespace, call errors
	if it is a procedure of the same name or the kind
	field is set, indicating a type declaration.

	PR fortran/20881
	PR fortran/23308
	PR fortran/25538
	PR fortran/25710
	* decl.c (add_global_entry): New function to check
	for existing global symbol with this name and to
	create new one if none exists.
	(gfc_match_entry): Call add_global_entry before
	matching argument lists for subroutine and function
	entries.
	* gfortran.h: Prototype for existing function, global_used.
	* resolve.c (resolve_global_procedure): New function
	to check global symbols for procedures.
	(resolve_call, resolve_function): Calls to this
	new function for non-contained and non-module
	procedures.
	* match.c (match_common): Add check for existing
	global symbol, creat one if none exists and emit
	error if there is a clash.
	* parse.c (global_used): Remove static and use the
	gsymbol name rather than the new_block name, so that
	the function can be called from resolve.c.
	(parse_block_data, parse_module, add_global_procedure):
	Improve checks for existing gsymbols.  Emit error if
	already defined or if references were to another type.
	Set defined flag.

	PR fortran/24276
	* trans-expr.c (gfc_conv_aliased_arg): New function called by 
	gfc_conv_function_call that coverts an expression for an aliased
	component reference to a derived type array into a temporary array
	of the same type as the component.  The temporary is passed as an
	actual argument for the procedure call and is copied back to the
	derived type after the call.
	(is_aliased_array): New function that detects an array reference
	that is followed by a component reference.
	(gfc_conv_function_call): Detect an aliased actual argument with
	is_aliased_array and convert it to a temporary and back again
	using gfc_conv_aliased_arg.

2006-01-27  Jakub Jelinek  <[e-mail]>

	PR fortran/25324
	* Make-lang.in (fortran/scanner.o): Depend on toplev.h.
	* lang.opt (fpreprocessed): New option.
	* scanner.c: Include toplev.h.
	(gfc_src_file, gfc_src_preprocessor_lines): New variables.
	(preprocessor_line): Unescape filename if there were any
	backslashes.
	(load_file): If initial and gfc_src_file is not NULL,
	use it rather than opening the file.  If gfc_src_preprocessor_lines
	has non-NULL elements, pass it to preprocessor_line.
	(unescape_filename, gfc_read_orig_filename): New functions.
	* gfortran.h (gfc_option_t): Add flag_preprocessed.
	(gfc_read_orig_filename): New prototype.
	* options.c (gfc_init_options): Clear flag_preprocessed.
	(gfc_post_options): If flag_preprocessed, call
	gfc_read_orig_filename.
	(gfc_handle_option): Handle OPT_fpreprocessed.
	* lang-specs.h: Pass -fpreprocessed to f951 if preprocessing
	sources.

2005-01-27  Erik Edelmann  <[e-mail]>

	PR fortran/25716
	* symbol.c (free_old_symbol): New function.
	(gfc_commit_symbols): Use it.
	(gfc_commit_symbol): New function.
	(gfc_use_derived): Use it.
	* gfortran.h: Add prototype for gfc_commit_symbol.
	* intrinsic.c (gfc_find_function): Search in 'conversion'
	if not found in 'functions'.
	(gfc_convert_type_warn): Add a symtree to the new
	expression node, and commit the new symtree->n.sym.
	* resolve.c (gfc_resolve_index): Make sure typespec is
	properly initialized.

2005-01-25  Steven Bosscher  <[e-mail]>
	Tobias Schl黷er  <[e-mail]>

	PR fortran/18540
	* resolve.c (resolve_branch): Allow FORTRAN 66 cross-block GOTOs
	as extension.

2005-01-23  Paul Thomas  <[e-mail]>

	Fix regression in testing of admissability of attributes.
	* symbol.c (gfc_add_attribute): If the current_attr has non-zero
	intent, do not do the check for a dummy being used.
	* decl.c (attr_decl1): Add current_attr.intent as the third argument
	in the call to gfc_add_attribute.
	* gfortran.h: Add the third argument to the prototype for
	gfc_add_attribute.

2006-01-21  Joseph S. Myers  <[e-mail]>

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

2006-01-18  Paul Thomas  <[e-mail]>

	PR fortran/20869