2012-03-15  Janne Blomqvist  <jb@gcc.gnu.org>

	* f95-lang.c (gfc_init_builtin_functions): Initialize
	BUILT_IN_IROUND.
	* mathbuiltins.def: Add IROUND.
	* trans-intrinsic.c (build_round_expr): Use BUILT_IN_IROUND if
	type size matches.
	(gfc_build_intrinsic_lib_fndecls): Build iround functions.

From-SVN: r185442