calls.c (emit_library_call_value_1): Use slot_offset instead of offset when…

calls.c (emit_library_call_value_1): Use slot_offset instead of offset when calculating bounds for indexing...

	* calls.c (emit_library_call_value_1): Use slot_offset instead of
	offset when calculating bounds for indexing stack_usage_map.  Fixes
	a buffer overflow with certain target setups.

From-SVN: r144317

gcc/ChangeLog

+2009-02-20  Jaka Mocnik  <jaka@xlab.si>
+
+	* calls.c (emit_library_call_value_1): Use slot_offset instead of
+	offset when calculating bounds for indexing stack_usage_map.  Fixes
+	a buffer overflow with certain target setups.
+
 2009-02-20  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/39240

gcc/calls.c

@@ -3646,10 +3646,10 @@ emit_library_call_value_1 (int retval, rtx orgfun, rtx value,
 #ifdef ARGS_GROW_DOWNWARD
 	      /* stack_slot is negative, but we want to index stack_usage_map
 		 with positive values.  */
-	      upper_bound = -argvec[argnum].locate.offset.constant + 1;
+	      upper_bound = -argvec[argnum].locate.slot_offset.constant + 1;
 	      lower_bound = upper_bound - argvec[argnum].locate.size.constant;
 #else
-	      lower_bound = argvec[argnum].locate.offset.constant;
+	      lower_bound = argvec[argnum].locate.slot_offset.constant;
 	      upper_bound = lower_bound + argvec[argnum].locate.size.constant;
 #endif