Fixed hierarchy pass for hierarchies of parametric modules

diff --git a/passes/hierarchy/hierarchy.cc b/passes/hierarchy/hierarchy.cc
index b80f0d493e4d29f3a4c20110205f94875fa819d5..287f93097fbd4417ae51ab5b778d2d6a5d087423 100644 (file)
--- a/passes/hierarchy/hierarchy.cc
+++ b/passes/hierarchy/hierarchy.cc
@@ -152,6 +152,7 @@ static bool expand_module(RTLIL::Design *design, RTLIL::Module *module, bool fla
                RTLIL::Module *mod = design->modules[cell->type];
                cell->type = mod->derive(design, cell->parameters);
                cell->parameters.clear();
+               did_something = true;
        }
 
        if (did_something)