diff options
| -rw-r--r-- | passes/cmds/design.cc | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/passes/cmds/design.cc b/passes/cmds/design.cc index cfe97067d..421defe0c 100644 --- a/passes/cmds/design.cc +++ b/passes/cmds/design.cc @@ -228,14 +228,20 @@ struct DesignPass : public Pass { } if (import_mode) { + std::vector<RTLIL::Module*> candidates; for (auto module : copy_src_modules) { if (module->get_bool_attribute(ID::top)) { - copy_src_modules.clear(); - copy_src_modules.push_back(module); + candidates.clear(); + candidates.push_back(module); break; } + if (!module->get_blackbox_attribute()) + candidates.push_back(module); } + + if (GetSize(candidates) == 1) + copy_src_modules = std::move(candidates); } } |