diff options
Diffstat (limited to 'passes/hierarchy/hierarchy.cc')
| -rw-r--r-- | passes/hierarchy/hierarchy.cc | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/passes/hierarchy/hierarchy.cc b/passes/hierarchy/hierarchy.cc index 225e1feae..3372687e1 100644 --- a/passes/hierarchy/hierarchy.cc +++ b/passes/hierarchy/hierarchy.cc @@ -1233,14 +1233,18 @@ struct HierarchyPass : public Pass { { int n = GetSize(conn.second) - GetSize(w); if (!w->port_input && w->port_output) - module->connect(sig.extract(GetSize(w), n), Const(0, n)); + { + RTLIL::SigSpec out = sig.extract(0, GetSize(w)); + out.extend_u0(GetSize(sig), w->is_signed); + module->connect(sig.extract(GetSize(w), n), out.extract(GetSize(w), n)); + } sig.remove(GetSize(w), n); } else { int n = GetSize(w) - GetSize(conn.second); if (w->port_input && !w->port_output) - sig.append(Const(0, n)); + sig.extend_u0(GetSize(w), sig.is_wire() && sig.as_wire()->is_signed); else sig.append(module->addWire(NEW_ID, n)); } |