diff options
Diffstat (limited to 'passes/hierarchy')
| -rw-r--r-- | passes/hierarchy/hierarchy.cc | 41 |
1 files changed, 21 insertions, 20 deletions
diff --git a/passes/hierarchy/hierarchy.cc b/passes/hierarchy/hierarchy.cc index 41c1cfded..c460fbbfc 100644 --- a/passes/hierarchy/hierarchy.cc +++ b/passes/hierarchy/hierarchy.cc @@ -620,34 +620,31 @@ struct HierarchyPass : public Pass { } } - if (!keep_portwidths) + for (auto module : design->modules()) + for (auto cell : module->cells()) { - for (auto module : design->modules()) - for (auto cell : module->cells()) - { - if (GetSize(cell->parameters) != 0) - continue; - - Module *m = design->module(cell->type); + if (GetSize(cell->parameters) != 0) + continue; - if (m == nullptr || m->get_bool_attribute("\\blackbox")) - continue; + Module *m = design->module(cell->type); - for (auto &conn : cell->connections()) - { - Wire *w = m->wire(conn.first); + if (m == nullptr || m->get_bool_attribute("\\blackbox")) + continue; - if (w == nullptr || w->port_id == 0) - continue; + for (auto &conn : cell->connections()) + { + Wire *w = m->wire(conn.first); - if (GetSize(conn.second) == 0) - continue; + if (w == nullptr || w->port_id == 0) + continue; - if (GetSize(w) == GetSize(conn.second)) - continue; + if (GetSize(conn.second) == 0) + continue; - SigSpec sig = conn.second; + SigSpec sig = conn.second; + if (!keep_portwidths && GetSize(w) != GetSize(conn.second)) + { if (GetSize(w) < GetSize(conn.second)) { int n = GetSize(conn.second) - GetSize(w); @@ -669,6 +666,10 @@ struct HierarchyPass : public Pass { log_id(conn.first), GetSize(conn.second), GetSize(sig)); cell->setPort(conn.first, sig); } + + if (w->port_output && !w->port_input && sig.has_const()) + log_error("Output port %s.%s.%s (%s) is connected to constants: %s\n", + log_id(module), log_id(cell), log_id(conn.first), log_id(cell->type), log_signal(sig)); } } |