diff options
Diffstat (limited to 'passes/sat/sim.cc')
| -rw-r--r-- | passes/sat/sim.cc | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/passes/sat/sim.cc b/passes/sat/sim.cc index 59bf5a712..03ca42cf3 100644 --- a/passes/sat/sim.cc +++ b/passes/sat/sim.cc @@ -128,8 +128,12 @@ struct SimInstance for (auto &port : cell->connections()) { if (cell->input(port.first)) - for (auto bit : sigmap(port.second)) + for (auto bit : sigmap(port.second)) { upd_cells[bit].insert(cell); + // Make sure cell inputs connected to constants are updated in the first cycle + if (bit.wire == nullptr) + dirty_bits.insert(bit); + } } if (cell->type.in(ID($dff))) { |