Excluded $_TBUF_ from opt_merge pass

diff --git a/passes/opt/opt_merge.cc b/passes/opt/opt_merge.cc
index b46b4bf4b2e434a7075f58a9db91139e1367a756..93d9f012ffb7286c2a626c490772393f874102ed 100644 (file)
--- a/passes/opt/opt_merge.cc
+++ b/passes/opt/opt_merge.cc
@@ -276,6 +276,7 @@ struct OptMergeWorker
                }
 
                ct.cell_types.erase("$tribuf");
+               ct.cell_types.erase("$_TBUF_");
                ct.cell_types.erase("$anyseq");
                ct.cell_types.erase("$anyconst");