2001-08-01  Andrew MacLeod  <amacleod@redhat.com>

	* regclass.c (call_really_used_regs): New array for registers which
	are actually used by a call.
	(init_reg_sets_1): Initialize regs_invalidated_by_call with the
	new array.
	(fix_register): Set call_really_used too.
	* config/ia64/ia64.h (CALL_REALLY_USED_REGISTERS): Initialize.
	* doc/tm.texi (CALL_REALLY_USED_REGISTERS): Document.

From-SVN: r44558