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Skip $inout transformation if not a PI

This commit is contained in:
Eddie Hung 2019-12-16 14:39:13 -08:00
parent 78c0246d4a
commit b19fc8839b
1 changed files with 5 additions and 3 deletions
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8
backends/aiger/xaiger.cc
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@ -542,10 +542,12 @@ struct XAigerWriter
undriven_bits.erase(bit);
}
// For inout ports, or keep-ed wires, then create a new wire with an
// $inout.out suffix, make it a PO driven by the existing inout, and
// inherit existing inout's drivers
// For inout ports, or keep-ed wires, that end up as both a PI and a
// PO, then create a new PO with an $inout.out suffix that is driven
// by the existing inout, and inherit its drivers
for (auto bit : inout_bits) {
if (!input_bits.count(bit))
continue;
RTLIL::Wire *wire = bit.wire;
RTLIL::IdString wire_name = stringf("$%s$inout.out", wire->name.c_str());
RTLIL::Wire *new_wire = module->wire(wire_name);