df-scan.c (df_record_entry_block_defs): Check if INCOMING_RETURN_ADDR_RTX is defined.

2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>

	* df-scan.c (df_record_entry_block_defs): Check if
	INCOMING_RETURN_ADDR_RTX is defined.

From-SVN: r110320

gcc/ChangeLog

+2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* df-scan.c (df_record_entry_block_defs): Check if
+	INCOMING_RETURN_ADDR_RTX is defined.
+
 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
 	    Kenneth Zadeck <zadeck@naturalbridge.com>
 

gcc/df-scan.c

@@ -1750,8 +1750,10 @@ df_record_entry_block_defs (struct dataflow * dflow)
     }
   else
     {
+#ifdef INCOMING_RETURN_ADDR_RTX
       if (REG_P (INCOMING_RETURN_ADDR_RTX))
 	bitmap_set_bit (df->entry_block_defs, REGNO (INCOMING_RETURN_ADDR_RTX));
+#endif
             
       /* If STATIC_CHAIN_INCOMING_REGNUM == STATIC_CHAIN_REGNUM
 	 only STATIC_CHAIN_REGNUM is defined.  If they are different,