diff options
Diffstat (limited to 'common/design_utils.cc')
| -rw-r--r-- | common/design_utils.cc | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/common/design_utils.cc b/common/design_utils.cc index a0b87764..bdf5ca5c 100644 --- a/common/design_utils.cc +++ b/common/design_utils.cc @@ -27,6 +27,8 @@ NEXTPNR_NAMESPACE_BEGIN void replace_port(CellInfo *old_cell, IdString old_name, CellInfo *rep_cell, IdString rep_name) { + if (!old_cell->ports.count(old_name)) + return; PortInfo &old = old_cell->ports.at(old_name); PortInfo &rep = rep_cell->ports.at(rep_name); NPNR_ASSERT(old.type == rep.type); @@ -107,6 +109,8 @@ void disconnect_port(const Context *ctx, CellInfo *cell, IdString port_name) return user.cell == cell && user.port == port_name; }), port.net->users.end()); + if (port.net->driver.cell == cell && port.net->driver.port == port_name) + port.net->driver.cell = nullptr; } } @@ -125,4 +129,21 @@ void connect_ports(Context *ctx, CellInfo *cell1, IdString port1_name, CellInfo connect_port(ctx, port1.net, cell2, port2_name); } +void rename_port(Context *ctx, CellInfo *cell, IdString old_name, IdString new_name) +{ + if (!cell->ports.count(old_name)) + return; + PortInfo pi = cell->ports.at(old_name); + if (pi.net != nullptr) { + if (pi.net->driver.cell == cell && pi.net->driver.port == old_name) + pi.net->driver.port = new_name; + for (auto &usr : pi.net->users) + if (usr.cell == cell && usr.port == old_name) + usr.port = new_name; + } + cell->ports.erase(old_name); + pi.name = new_name; + cell->ports[new_name] = pi; +} + NEXTPNR_NAMESPACE_END |