more warning fixes

[libfirm] / ir / ana / irextbb2.c

diff --git a/ir/ana/irextbb2.c b/ir/ana/irextbb2.c
index 0c4a05a..6a1d936 100644 (file)
--- a/ir/ana/irextbb2.c
+++ b/ir/ana/irextbb2.c
@@ -130,6 +130,9 @@ static void pick_successor(ir_node *block, ir_extblk *extblk, env_t *env)
                ir_node *succ = get_edge_src_irn(edge);
                double execfreq;
 
+               if(irn_visited(succ))
+                       continue;
+
                if(get_Block_n_cfgpreds(succ) > 1) {
                        create_extblk(succ, env);
                        continue;