diff options
Diffstat (limited to 'passes/techmap/abc9.cc')
| -rw-r--r-- | passes/techmap/abc9.cc | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/passes/techmap/abc9.cc b/passes/techmap/abc9.cc index 7eac08d17..09d6e9670 100644 --- a/passes/techmap/abc9.cc +++ b/passes/techmap/abc9.cc @@ -471,7 +471,7 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *current_module, std::stri log_error("ABC: execution of command \"%s\" failed: return code %d.\n", buffer.c_str(), ret); buffer = stringf("%s/%s", tempdir_name.c_str(), "output.aig"); - ifs.open(buffer); + ifs.open(buffer, std::ifstream::binary); if (ifs.fail()) log_error("Can't open ABC output file `%s'.\n", buffer.c_str()); @@ -606,7 +606,6 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *current_module, std::stri existing_cell = module->cell(c->name); log_assert(existing_cell); cell = module->addCell(remap_name(c->name), c->type); - module->swap_names(cell, existing_cell); } if (markgroups) cell->attributes[ID(abcgroup)] = map_autoidx; @@ -642,8 +641,22 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *current_module, std::stri } } - for (auto cell : boxes) - module->remove(cell); + for (auto existing_cell : boxes) { + Cell *cell = module->cell(remap_name(existing_cell->name)); + if (cell) { + for (auto &conn : existing_cell->connections()) { + if (!conn.second.is_wire()) + continue; + Wire *wire = conn.second.as_wire(); + if (!wire->get_bool_attribute(ID(abc_padding))) + continue; + cell->unsetPort(conn.first); + log_debug("Dropping padded port connection for %s (%s) .%s (%s )\n", log_id(cell), cell->type.c_str(), log_id(conn.first), log_signal(conn.second)); + } + module->swap_names(cell, existing_cell); + } + module->remove(existing_cell); + } // Copy connections (and rename) from mapped_mod to module for (auto conn : mapped_mod->connections()) { |