riscv
/
yosys
mirror of https://github.com/YosysHQ/yosys.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Merge pull request #3387 from ekiwi/btor-pos-cell 

btor: add support for $pos cell
This commit is contained in:
Jannis Harder 2022-06-21 10:30:10 +02:00 committed by GitHub
parent 0b486c56e8 de5c4bf523
commit a30b38910c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
backends/btor/btor.cc
View File

@ -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++;