2008-09-18  Alexander Monakov  <amonakov@ispras.ru>

	PR middle-end/37499
	* sched-int.h (struct _haifa_insn_data): Remove unused field
	ref_count.

	* sched-rgn.c (ref_counts): Remove.
	(insn_referenced): New static variable.
	(INSN_REF_COUNT): Remove.
	(sched_run_compute_dependencies): Use insn_referenced instead of
	INSN_REF_COUNT.
	(add_branch_dependences): Likewise.  Delete dead assignment.

From-SVN: r140445