diff options
| -rw-r--r-- | backends/btor/btor.cc | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/backends/btor/btor.cc b/backends/btor/btor.cc index 5be9bf324..7dec70545 100644 --- a/backends/btor/btor.cc +++ b/backends/btor/btor.cc @@ -446,25 +446,28 @@ struct BtorWorker goto okay; } - if (cell->type.in(ID($not), ID($neg), ID($_NOT_))) + if (cell->type.in(ID($not), ID($neg), ID($_NOT_), ID($pos))) { string btor_op; if (cell->type.in(ID($not), ID($_NOT_))) btor_op = "not"; if (cell->type == ID($neg)) btor_op = "neg"; - log_assert(!btor_op.empty()); int width = std::max(GetSize(cell->getPort(ID::A)), GetSize(cell->getPort(ID::Y))); bool a_signed = cell->hasParam(ID::A_SIGNED) ? cell->getParam(ID::A_SIGNED).as_bool() : false; - - int sid = get_bv_sid(width); int nid_a = get_sig_nid(cell->getPort(ID::A), width, a_signed); - - int nid = next_nid++; - btorf("%d %s %d %d%s\n", nid, btor_op.c_str(), sid, nid_a, getinfo(cell).c_str()); - SigSpec sig = sigmap(cell->getPort(ID::Y)); + // the $pos cell just passes through, all other cells need an actual operation applied + int nid = nid_a; + if (cell->type != ID($pos)) + { + log_assert(!btor_op.empty()); + int sid = get_bv_sid(width); + nid = next_nid++; + btorf("%d %s %d %d%s\n", nid, btor_op.c_str(), sid, nid_a, getinfo(cell).c_str()); + } + if (GetSize(sig) < width) { int sid = get_bv_sid(GetSize(sig)); int nid2 = next_nid++; |