re PR fortran/48426 ([patch] Quad precision promotion)

re PR fortran/48426 ([patch] Quad precision promotion)

2012-01-16  Zydrunas Gimbutas  <gimbutas@cims.nyu.edu>
	    Andreas Kloeckner  <kloeckner@cims.nyu.edu>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/48426
	* gfortran.h (gfc_option_t): Add members flag_*_kind to store kind.
	* lang.opt: Add options -freal-4-real-8, -freal-4-real-10,
	-freal-4-real-16, -freal-8-real-4, -freal-8-real-10, -freal-8-real-16
	and -finteger-4-integer-8. User-desired type conversion information.
	* decl.c (gfc_match_old_kind_spec,kind_expr): Type conversions
	in declaration parsing.
	* trans-types.c (gfc_init_kinds): User-specified type conversion
	checked for current backend.
	* primary.c (match_integer_constant,match_real_constant): Implement
	type conversion in constant parsing.
	* options.c (gfc_init_options,gfc_handle_option): Translate input
	options to flags in internal options data structure.
	* invoke.texi: Document new options.  Re-order options in Options
	summary section.

From-SVN: r183217