From c7fbe13db5144cf87c56d3f7a620a295029606b3 Mon Sep 17 00:00:00 2001
From: Eddie Hung <eddie@fpgeh.com>
Date: Fri, 24 Jan 2020 13:11:43 -0800
Subject: [PATCH] read_aiger: set abc9_box_seq attr

---
 frontends/aiger/aigerparse.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/frontends/aiger/aigerparse.cc b/frontends/aiger/aigerparse.cc
index b9c648afd..418fd722c 100644
--- a/frontends/aiger/aigerparse.cc
+++ b/frontends/aiger/aigerparse.cc
@@ -478,6 +478,7 @@ void AigerReader::parse_xaiger()
 				RTLIL::Cell* cell = module->addCell(stringf("$box%u", oldBoxNum), stringf("$__boxid%u", boxUniqueId));
 				cell->setPort("\\i", SigSpec(State::S0, boxInputs));
 				cell->setPort("\\o", SigSpec(State::S0, boxOutputs));
+				cell->attributes["\\abc9_box_seq"] = oldBoxNum;
 				boxes.emplace_back(cell);
 			}
 		}
-- 
2.30.2