ira-conflicts.c (process_regs_for_copy): Check insn to check that the cost is already taken into account in ira-costs.c

2008-09-04  Vladimir Makarov  <vmakarov@redhat.com>

	* ira-conflicts.c (process_regs_for_copy): Check insn to check
	that the cost is already taken into account in ira-costs.c

	* ira-int.h (ira_debug_copy, ira_debug_copies): New.

	* ira-build.c (print_copy, print_copies, ira_debug_copy,
	ira_debug_copies): New.
	(ira_bulid): Call print_copies.
	
	* doc/tm.texi (IRA_COVER_CLASSES): Fix the description.

From-SVN: r140014