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-rw-r--r--passes/techmap/extract_fa.cc4
1 files changed, 2 insertions, 2 deletions
diff --git a/passes/techmap/extract_fa.cc b/passes/techmap/extract_fa.cc
index b541ceb6b..8f195a90a 100644
--- a/passes/techmap/extract_fa.cc
+++ b/passes/techmap/extract_fa.cc
@@ -513,13 +513,13 @@ struct ExtractFaWorker
}
if (func2.at(key).count(xor2_func)) {
- SigBit YY = invert_xy ? module->NotGate(NEW_ID, Y) : Y;
+ SigBit YY = invert_xy || (f2i.inv_a && !f2i.inv_b) || (!f2i.inv_a && f2i.inv_b) ? module->NotGate(NEW_ID, Y) : Y;
for (auto bit : func2.at(key).at(xor2_func))
assign_new_driver(bit, YY);
}
if (func2.at(key).count(xnor2_func)) {
- SigBit YY = invert_xy ? Y : module->NotGate(NEW_ID, Y);
+ SigBit YY = invert_xy || (f2i.inv_a && !f2i.inv_b) || (!f2i.inv_a && f2i.inv_b) ? Y : module->NotGate(NEW_ID, Y);
for (auto bit : func2.at(key).at(xnor2_func))
assign_new_driver(bit, YY);
}