diff options
Diffstat (limited to 'passes')
| -rw-r--r-- | passes/sat/supercover.cc | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/passes/sat/supercover.cc b/passes/sat/supercover.cc index 9b208b0bf..ba44f02d8 100644 --- a/passes/sat/supercover.cc +++ b/passes/sat/supercover.cc @@ -54,17 +54,33 @@ struct SupercoverPass : public Pass { for (auto module : design->selected_modules()) { + SigMap sigmap(module); + pool<SigBit> handled_bits; + int cnt_wire = 0, cnt_bits = 0; log("Adding cover cells to module %s.\n", log_id(module)); for (auto wire : module->selected_wires()) { + bool counted_wire = false; std::string src = wire->get_src_attribute(); - cnt_wire++; - for (auto bit : SigSpec(wire)) + + for (auto bit : sigmap(SigSpec(wire))) { + if (bit.wire == nullptr) + continue; + + if (handled_bits.count(bit)) + continue; + SigSpec inv = module->Not(NEW_ID, bit); module->addCover(NEW_ID, bit, State::S1, src); module->addCover(NEW_ID, inv, State::S1, src); + + handled_bits.insert(bit); + if (!counted_wire) { + counted_wire = false; + cnt_wire++; + } cnt_bits++; } } |