diff options
| -rw-r--r-- | passes/techmap/alumacc.cc | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/passes/techmap/alumacc.cc b/passes/techmap/alumacc.cc index 5b168d524..034731b87 100644 --- a/passes/techmap/alumacc.cc +++ b/passes/techmap/alumacc.cc @@ -48,14 +48,25 @@ struct AlumaccWorker RTLIL::SigSpec cached_cf, cached_of, cached_sf; RTLIL::SigSpec get_lt() { - if (GetSize(cached_lt) == 0) - cached_lt = is_signed ? alu_cell->module->Xor(NEW_ID, get_of(), get_sf()) : get_cf(); + if (GetSize(cached_lt) == 0) { + if (is_signed) { + get_of(); + get_sf(); + cached_lt = alu_cell->module->Xor(NEW_ID, cached_of, cached_sf); + } + else + cached_lt = get_cf(); + } return cached_lt; } RTLIL::SigSpec get_gt() { - if (GetSize(cached_gt) == 0) - cached_gt = alu_cell->module->Not(NEW_ID, alu_cell->module->Or(NEW_ID, get_lt(), get_eq()), false, alu_cell->get_src_attribute()); + if (GetSize(cached_gt) == 0) { + get_lt(); + get_eq(); + SigSpec Or = alu_cell->module->Or(NEW_ID, cached_lt, cached_eq); + cached_gt = alu_cell->module->Not(NEW_ID, Or, false, alu_cell->get_src_attribute()); + } return cached_gt; } |