Properly initialize variable in tree-chkp.c (chkp_mark_invalid_bounds_walker)

	* tree-chkp.c (chkp_mark_invalid_bounds_walker): Initialize
	variable.

From-SVN: r233593

gcc/ChangeLog

+2016-02-21  Markus Trippelsdorf  <markus@trippelsdorf.de>
+
+	* tree-chkp.c (chkp_mark_invalid_bounds_walker): Initialize
+	variable.
+
 2016-02-19  Jakub Jelinek  <jakub@redhat.com>
 
 	PR driver/69805

gcc/tree-chkp.c

@@ -895,7 +895,7 @@ chkp_mark_invalid_bounds_walker (tree const &bounds,
 static void
 chkp_finish_incomplete_bounds (void)
 {
-  bool found_valid;
+  bool found_valid = true;
 
   while (found_valid)
     {