Fixed iterator invalidation bug in "rename" command

diff --git a/passes/cmds/rename.cc b/passes/cmds/rename.cc
index 8f24af27820f0adf5f482134b4ab5f9d9dcab6c1..17d803e96ca298615a5e3abb4d1ce30809287741 100644 (file)
--- a/passes/cmds/rename.cc
+++ b/passes/cmds/rename.cc
@@ -34,9 +34,10 @@ static void rename_in_module(RTLIL::Module *module, std::string from_name, std::
 
        for (auto &it : module->wires_)
                if (it.first == from_name) {
-                       log("Renaming wire %s to %s in module %s.\n", log_id(it.second), log_id(to_name), log_id(module));
-                       module->rename(it.second, to_name);
-                       if (it.second->port_id)
+                       Wire *w = it.second;
+                       log("Renaming wire %s to %s in module %s.\n", log_id(w), log_id(to_name), log_id(module));
+                       module->rename(w, to_name);
+                       if (w->port_id)
                                module->fixup_ports();
                        return;
                }