re PR fortran/45197 ([F2008] Allow IMPURE elemental procedures)

re PR fortran/45197 ([F2008] Allow IMPURE elemental procedures)

2010-08-15  Daniel Kraft  <d@domob.eu>

	PR fortran/45197
	* decl.c (gfc_match_prefix): Match IMPURE prefix and mark ELEMENTAL
	routines not IMPURE also as PURE.
	* intrinsic.c (enum klass): New class `CLASS_PURE' and renamed
	`NO_CLASS' in `CLASS_IMPURE'.
	(add_sym): Set symbol-attributes `pure' and `elemental' correctly.
	(add_sym_0s): Renamed `NO_CLASS' in `CLASS_IMPURE'.
	(add_functions): Ditto.
	(add_subroutines): Ditto and mark `MOVE_ALLOC' as CLASS_PURE.
	* resolve.c (gfc_pure): Do not treat ELEMENTAL as automatically PURE.
	(resolve_formal_arglist): Check that arguments to ELEMENTAL procedures
	are not ALLOCATABLE and have their INTENT specified.

2010-08-15  Daniel Kraft  <d@domob.eu>

	PR fortran/45197
	* gfortran.dg/elemental_args_check_3.f90: New test.
	* gfortran.dg/impure_1.f08: New test.
	* gfortran.dg/impure_2.f08: New test.
	* gfortran.dg/impure_3.f90: New test.
	* gfortran.dg/typebound_proc_6.f03: Changed expected error message.

From-SVN: r163261