reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR reloads to RELOAD_FOR_X_ADDRESS...

	* reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
	reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.
	Properly keep track of first RELOAD_FOR_X_ADDRESS also for
	more than 3 such reloads.
	If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
	RELOAD_FOR_X_ADDR_ADDR reload.

From-SVN: r22568