diff options
| -rw-r--r-- | backends/edif/edif.cc | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/backends/edif/edif.cc b/backends/edif/edif.cc index ced0c8e6..17ae08cc 100644 --- a/backends/edif/edif.cc +++ b/backends/edif/edif.cc @@ -209,16 +209,17 @@ struct EdifBackend : public Backend { module_deps[mod_it.second].insert(design->modules.at(cell_it.second->type)); } - // bubble-sort equivialent to topological sort.. + // simple good-enough topological sort + // (O(n*m) on n elements and depth m) while (module_deps.size() > 0) { size_t sorted_modules_idx = sorted_modules.size(); for (auto &it : module_deps) { for (auto &dep : it.second) if (module_deps.count(dep) > 0) - goto no_ready_yet; + goto not_ready_yet; // log("Next in topological sort: %s\n", RTLIL::id2cstr(it.first->name)); sorted_modules.push_back(it.first); - no_ready_yet:; + not_ready_yet:; } if (sorted_modules_idx == sorted_modules.size()) log_error("Cyclic dependency between modules found! Cycle includes module %s.\n", RTLIL::id2cstr(module_deps.begin()->first->name)); |