diff options
Diffstat (limited to 'backends/firrtl/firrtl.cc')
| -rw-r--r-- | backends/firrtl/firrtl.cc | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/backends/firrtl/firrtl.cc b/backends/firrtl/firrtl.cc index 76ba77abb..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) @@ -1215,6 +1221,7 @@ struct FirrtlBackend : public Backend { Pass::call(design, "pmuxtree"); Pass::call(design, "bmuxmap"); Pass::call(design, "demuxmap"); + Pass::call(design, "bwmuxmap"); namecache.clear(); autoid_counter = 0; @@ -1237,6 +1244,9 @@ struct FirrtlBackend : public Backend { if (top == nullptr) top = last; + if (!top) + log_cmd_error("There is no top module in this design!\n"); + std::string circuitFileinfo = getFileinfo(top); *f << stringf("circuit %s: %s\n", make_id(top->name), circuitFileinfo.c_str()); |