cfgexpand.c (expand_stack_vars): Add checking to make sure that the offset of a…

cfgexpand.c (expand_stack_vars): Add checking to make sure that the offset of a variable is not greater than the...

2007-10-17  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * cfgexpand.c (expand_stack_vars): Add checking to make sure
        that the offset of a variable is not greater than the size
        of the paritition.

From-SVN: r129420

gcc/ChangeLog

+2007-10-17  Andrew Pinski  <andrew_pinski@playstation.sony.com>
+
+	* cfgexpand.c (expand_stack_vars): Add checking to make sure
+	that the offset of a variable is not greater than the size
+	of the paritition.
+
 2007-10-17  Anatoly Sokolov <aesok@post.ru>
 
 	* config/avr/avr.c (avr_mcu_types): Add support for atmega48p, 

gcc/cfgexpand.c

@@ -579,8 +579,11 @@ expand_stack_vars (bool (*pred) (tree))
       /* Create rtl for each variable based on their location within the
 	 partition.  */
       for (j = i; j != EOC; j = stack_vars[j].next)
-	expand_one_stack_var_at (stack_vars[j].decl,
-				 stack_vars[j].offset + offset);
+	{
+	  gcc_assert (stack_vars[j].offset <= stack_vars[i].size);
+	  expand_one_stack_var_at (stack_vars[j].decl,
+				   stack_vars[j].offset + offset);
+	}
     }
 }