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rename -witness: Bug fix and rename formal cells

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Rename formal cells in addition to witness signals. This is required to
reliably track individual property states for the non-smtbmc flows.

Also removes a misplced `break` which resulted in only partial witness
renaming.
This commit is contained in:
Jannis Harder 2024-02-27 19:56:47 +01:00
parent 6469d90293
commit d8cdc213a6
2 changed files with 26 additions and 2 deletions
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13
backends/smt2/smt2.cc
View file

@ -1117,7 +1117,18 @@ struct Smt2Worker
string name_a = get_bool(cell->getPort(ID::A));
string name_en = get_bool(cell->getPort(ID::EN));
if (cell->name[0] == '$' && cell->attributes.count(ID::src))
bool private_name = cell->name[0] == '$';
if (!private_name && cell->has_attribute(ID::hdlname)) {
for (auto const &part : cell->get_hdlname_attribute()) {
if (part == "_witness_") {
private_name = true;
break;
}
}
}
if (private_name && cell->attributes.count(ID::src))
decls.push_back(stringf("; yosys-smt2-%s %d %s %s\n", cell->type.c_str() + 1, id, get_id(cell), cell->attributes.at(ID::src).decode_string().c_str()));
else
decls.push_back(stringf("; yosys-smt2-%s %d %s\n", cell->type.c_str() + 1, id, get_id(cell)));