diff options
| -rw-r--r-- | passes/techmap/abc9_ops.cc | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/passes/techmap/abc9_ops.cc b/passes/techmap/abc9_ops.cc index 8d55b18a0..16b468b19 100644 --- a/passes/techmap/abc9_ops.cc +++ b/passes/techmap/abc9_ops.cc @@ -719,8 +719,10 @@ void prep_xaiger(RTLIL::Module *module, bool dff) bit_users[bit].insert(cell->name); if (cell->output(conn.first) && !abc9_flop) - for (auto bit : sigmap(conn.second)) - bit_drivers[bit].insert(cell->name); + for (const auto &chunk : conn.second.chunks()) + if (!chunk.wire->get_bool_attribute(ID::abc9_keep)) + for (auto b : sigmap(SigSpec(chunk))) + bit_drivers[b].insert(cell->name); } toposort.node(cell->name); } |