diff options
| -rw-r--r-- | passes/opt/opt_clean.cc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/passes/opt/opt_clean.cc b/passes/opt/opt_clean.cc index 5f75288e2..a8a8e0bc7 100644 --- a/passes/opt/opt_clean.cc +++ b/passes/opt/opt_clean.cc @@ -326,8 +326,8 @@ bool rmunused_module_signals(RTLIL::Module *module, bool purge_mode, bool verbos if (wire->port_id != 0 || wire->get_bool_attribute("\\keep") || !initval.is_fully_undef()) { // do not delete anything with "keep" or module ports or initialized wires } else - if (!purge_mode && check_public_name(wire->name)) { - // do not get rid of public names unless in purge mode + if (!purge_mode && check_public_name(wire->name) && (raw_used_signals.check_any(s1) || used_signals.check_any(s2) || s1 != s2)) { + // do not get rid of public names unless in purge mode or if the wire is entirely unused, not even aliased } else if (!raw_used_signals.check_any(s1)) { // delete wires that aren't used by anything directly |