normalize_n_returns does produce unreachable code and invalidates other stuff

[libfirm] / ir / opt / tailrec.c

diff --git a/ir/opt/tailrec.c b/ir/opt/tailrec.c
index a01f8f9..8db49e3 100644 (file)
--- a/ir/opt/tailrec.c
+++ b/ir/opt/tailrec.c
@@ -265,9 +265,9 @@ static void do_opt_tail_rec(ir_graph *irg, tr_env *env)
        }
 
        /* tail recursion was done, all info is invalid */
-       clear_irg_state(irg, IR_GRAPH_STATE_CONSISTENT_DOMINANCE);
+       clear_irg_state(irg, IR_GRAPH_STATE_CONSISTENT_DOMINANCE
+                          | IR_GRAPH_STATE_CONSISTENT_LOOPINFO);
        set_irg_extblk_inconsistent(irg);
-       set_irg_loopinfo_state(irg, loopinfo_cf_inconsistent);
        set_trouts_inconsistent();
        set_irg_callee_info_state(irg, irg_callee_info_inconsistent);