2005-04-29  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/13082
	PR fortran/18824
	* trans-expr.c (gfc_conv_variable): Handle return values in functions
	with alternate entry points.
	* resolve.c (resolve_entries): Remove unnecessary string termination
	after snprintf.  Set result of entry master.
	If all entries have the same type, set entry master's type
	to that common type, otherwise set mixed_entry_master attribute.
	* trans-types.c (gfc_get_mixed_entry_union): New function.
	(gfc_get_function_type): Use it for mixed_entry_master functions.
	* gfortran.h (symbol_attribute): Add mixed_entry_master bit.
	* decl.c (gfc_match_entry): Set entry->result properly for
	function ENTRY.
	* trans-decl.c (gfc_get_symbol_decl): For entry_master, skip over
	__entry argument.
	(build_entry_thunks): Handle return values in entry thunks.
	Clear BT_CHARACTER's ts.cl->backend_decl, so that it is not
	shared between multiple contexts.
	(gfc_get_fake_result_decl): Use DECL_ARGUMENTS from
	current_function_decl instead of sym->backend_decl.  Skip over
	entry master's entry id argument.  For mixed_entry_master entries or
	their results, return a COMPONENT_REF of the fake result.
	(gfc_trans_deferred_vars): Don't warn about missing return value if
	at least one entry point uses RESULT.
	(gfc_generate_function_code): For entry master returning
	CHARACTER, copy ts.cl->backend_decl to all entry result syms.
	* trans-array.c (gfc_trans_dummy_array_bias): Don't consider return
	values optional just because they are in entry master.

	* gfortran.dg/entry_4.f90: New test.
	* gfortran.fortran-torture/execute/entry_1.f90: New test.
	* gfortran.fortran-torture/execute/entry_2.f90: New test.
	* gfortran.fortran-torture/execute/entry_3.f90: New test.
	* gfortran.fortran-torture/execute/entry_4.f90: New test.
	* gfortran.fortran-torture/execute/entry_5.f90: New test.
	* gfortran.fortran-torture/execute/entry_6.f90: New test.
	* gfortran.fortran-torture/execute/entry_7.f90: New test.

2005-04-29  Tobias Schl"uter  <tobias.schlueter@physik.uni-muenchen.de>

	* gfortran.fortran-torture/execute/entry_8.f90: New test.

From-SVN: r98993