From 42f990f3a6b7928841fa0e290fa2688925485907 Mon Sep 17 00:00:00 2001
From: Eddie Hung <eddie@fpgeh.com>
Date: Mon, 16 Dec 2019 16:40:52 -0800
Subject: [PATCH] Use sigmap signal

---
 backends/aiger/xaiger.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backends/aiger/xaiger.cc b/backends/aiger/xaiger.cc
index 6ca24bd7e..e060efece 100644
--- a/backends/aiger/xaiger.cc
+++ b/backends/aiger/xaiger.cc
@@ -471,7 +471,7 @@ struct XAigerWriter
 							SigBit O = sigmap(b);
 							if (O != b)
 								alias_map[O] = b;
-							input_bits.erase(b);
+							input_bits.erase(O);
 							undriven_bits.erase(O);
 						}
 					}
-- 
2.30.2