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Localize external package/global net

This commit is contained in:
Akash Levy 2026-04-30 10:51:03 -07:00
parent 162233a225
commit 4d110a96bf
1 changed files with 24 additions and 1 deletions
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25
frontends/verific/verific.cc
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@ -2814,7 +2814,22 @@ struct VerificExtNets
cursor = ((Instance*)cursor->GetReferences()->GetLast())->Owner(); cursor = ((Instance*)cursor->GetReferences()->GetLast())->Owner();
} }
log_error("No common ancestor found between %s and %s.\n", get_full_netlist_name(A), get_full_netlist_name(B)); return nullptr;
}
Net *localize_external_package_net(Netlist *nl, Net *net, Port *port)
{
string name = stringf("___extnets_%d", portname_cnt++);
Net *new_net = new Net(name.c_str());
nl->Add(new_net);
if (!port->IsInput())
log_warning("Localizing external package/global net reference '%s.%s' on %s.%s; "
"writes to the package/global object are not propagated.\n",
get_full_netlist_name(net->Owner()).c_str(), net->Name(),
get_full_netlist_name(nl).c_str(), port->Name());
return new_net;
} }
void run(Netlist *nl) void run(Netlist *nl)
@ -2847,6 +2862,14 @@ struct VerificExtNets
Netlist *ca_nl = find_common_ancestor(nl, ext_nl); Netlist *ca_nl = find_common_ancestor(nl, ext_nl);
if (ca_nl == nullptr) {
Net *new_net = localize_external_package_net(nl, net, port);
if (verific_verbose)
log(" localized external package/global net: %s\n", new_net->Name());
todo_connect.push_back(tuple<Instance*, Port*, Net*>(inst, port, new_net));
continue;
}
if (verific_verbose) if (verific_verbose)
log(" common ancestor: %s\n", get_full_netlist_name(ca_nl)); log(" common ancestor: %s\n", get_full_netlist_name(ca_nl));