Improved inout handling in equiv_make

diff --git a/passes/equiv/equiv_make.cc b/passes/equiv/equiv_make.cc
index c001fdbfe3fd3daaf7e0f8165011198f1d1a754e..8b063c542565f9740147b1513236152d1835f88f 100644 (file)
--- a/passes/equiv/equiv_make.cc
+++ b/passes/equiv/equiv_make.cc
@@ -280,7 +280,7 @@ struct EquivMakeWorker
 
                for (auto c : cells_list)
                for (auto &conn : c->connections())
-                       if (ct.cell_input(c->type, conn.first)) {
+                       if (!ct.cell_output(c->type, conn.first)) {
                                SigSpec old_sig = assign_map(conn.second);
                                SigSpec new_sig = rd_signal_map(old_sig);
                                if (old_sig != new_sig) {