diff options
| -rw-r--r-- | backends/firrtl/firrtl.cc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/backends/firrtl/firrtl.cc b/backends/firrtl/firrtl.cc index d68c52563..eb30ab4b9 100644 --- a/backends/firrtl/firrtl.cc +++ b/backends/firrtl/firrtl.cc @@ -346,6 +346,12 @@ void emit_elaborated_extmodules(RTLIL::Design *design, std::ostream &f) { // Find the module corresponding to this instance. auto modInstance = design->module(cell->type); + // Ensure that we actually have a module instance + if (modInstance == nullptr) { + log_error("Unknown cell type %s\n", cell->type.c_str()); + return; + } + bool modIsBlackbox = modInstance->get_blackbox_attribute(); if (modIsBlackbox) |