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Fix multiple driver issue

This commit is contained in:
Eddie Hung 2019-11-27 13:21:59 -08:00
parent 449b1d2c6f
commit ac5b5e97bc
1 changed files with 7 additions and 2 deletions
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9
passes/hierarchy/submod.cc
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@ -228,11 +228,16 @@ struct SubmodWorker
RTLIL::SigSpec old_sig = sigmap(it.first); RTLIL::SigSpec old_sig = sigmap(it.first);
RTLIL::Wire *new_wire = it.second.new_wire; RTLIL::Wire *new_wire = it.second.new_wire;
if (new_wire->port_id > 0) { if (new_wire->port_id > 0) {
// Prevents "ERROR: Mismatch in directionality ..." when flattening
if (new_wire->port_output) if (new_wire->port_output)
for (auto &b : old_sig) for (int i = 0; i < GetSize(old_sig); i++) {
auto &b = old_sig[i];
// Prevents "ERROR: Mismatch in directionality ..." when flattening
if (!b.wire) if (!b.wire)
b = module->addWire(NEW_ID); b = module->addWire(NEW_ID);
// Prevents "Warning: multiple conflicting drivers ..."
else if (!it.second.is_int_driven[i])
b = module->addWire(NEW_ID);
}
new_cell->setPort(new_wire->name, old_sig); new_cell->setPort(new_wire->name, old_sig);
} }
} }