diff options
Diffstat (limited to 'passes/opt/opt_ffinv.cc')
| -rw-r--r-- | passes/opt/opt_ffinv.cc | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/passes/opt/opt_ffinv.cc b/passes/opt/opt_ffinv.cc index fd76dd2be..fe5b59fa5 100644 --- a/passes/opt/opt_ffinv.cc +++ b/passes/opt/opt_ffinv.cc @@ -72,6 +72,8 @@ struct OptFfInvWorker for (auto &port: q_ports) { if (port.cell == ff.cell && port.port == ID::Q) continue; + if (port.cell == d_inv) + return false; if (port.port != ID::A) return false; if (!port.cell->type.in(ID($not), ID($_NOT_), ID($lut))) @@ -148,6 +150,8 @@ struct OptFfInvWorker for (auto &port: q_ports) { if (port.cell == ff.cell && port.port == ID::Q) continue; + if (port.cell == d_lut) + return false; if (port.port != ID::A) return false; if (port.cell->type.in(ID($not), ID($_NOT_))) { |