abc9_exe: -box to not require -lut

diff --git a/passes/techmap/abc9_exe.cc b/passes/techmap/abc9_exe.cc
index f7dafda9690e4574c408f69a9f83f79b2d266adb..b3afaebe6c8ad5bfa143c1c54b1254225cf21940 100644 (file)
--- a/passes/techmap/abc9_exe.cc
+++ b/passes/techmap/abc9_exe.cc
@@ -188,20 +188,15 @@ void abc9_module(RTLIL::Design *design, std::string script_file, std::string exe
 
        std::string abc9_script;
 
-       if (!lut_costs.empty()) {
+       if (!lut_costs.empty())
                abc9_script += stringf("read_lut %s/lutdefs.txt; ", tempdir_name.c_str());
-               if (!box_file.empty())
-                       abc9_script += stringf("read_box %s; ", box_file.c_str());
-       }
        else
-       if (!lut_file.empty()) {
+       if (!lut_file.empty())
                abc9_script += stringf("read_lut %s; ", lut_file.c_str());
-               if (!box_file.empty())
-                       abc9_script += stringf("read_box %s; ", box_file.c_str());
-       }
        else
                log_abort();
 
+       abc9_script += stringf("read_box %s; ", box_file.c_str());
        abc9_script += stringf("&read %s/input.xaig; &ps; ", tempdir_name.c_str());
 
        if (!script_file.empty()) {
@@ -355,7 +350,7 @@ struct Abc9ExePass : public Pass {
                log("        command output is identical across runs.\n");
                log("\n");
                log("    -box <file>\n");
-               log("        pass this file with box library to ABC. Use with -lut.\n");
+               log("        pass this file with box library to ABC.\n");
                log("\n");
                log("    -cwd <dir>\n");
                log("        use this as the current working directory, inside which the 'input.xaig'\n");