(emit_reload_insns): When clearing reg_last_reload_reg, clear all hard

regs in reload_out.

From-SVN: r6741

gcc/reload1.c

@@ -6449,7 +6449,10 @@ emit_reload_insns (insn)
       if (i < 0 && reload_out[r] != 0 && GET_CODE (reload_out[r]) == REG)
 	{
 	  register int nregno = REGNO (reload_out[r]);
-	  reg_last_reload_reg[nregno] = 0;
+	  int num_regs = HARD_REGNO_NREGS (nregno, GET_MODE (reload_out[r]));
+
+	  while (num_regs-- > 0)
+	    reg_last_reload_reg[nregno + num_regs] = 0;
 	}
     }
 }