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Diffstat (limited to 'backends/aiger/xaiger.cc')
| -rw-r--r-- | backends/aiger/xaiger.cc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/backends/aiger/xaiger.cc b/backends/aiger/xaiger.cc index 8651f3a01..822ba4dec 100644 --- a/backends/aiger/xaiger.cc +++ b/backends/aiger/xaiger.cc @@ -356,6 +356,11 @@ struct XAigerWriter alias_map[O] = b; ci_bits.emplace_back(b); undriven_bits.erase(O); + // If PI and CI, then must be a (* keep *) wire + if (input_bits.erase(O)) { + log_assert(output_bits.count(O)); + log_assert(O.wire->get_bool_attribute(ID::keep)); + } } } |