From ef757002dbc8280a65d25618e57b20d3dbadd64a Mon Sep 17 00:00:00 2001
From: Eddie Hung <eddie@fpgeh.com>
Date: Mon, 1 Jul 2019 10:55:24 -0700
Subject: [PATCH] Also remove $__ABC_FF_

---
 passes/techmap/abc9.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/passes/techmap/abc9.cc b/passes/techmap/abc9.cc
index 2eee43739..30df8e3ef 100644
--- a/passes/techmap/abc9.cc
+++ b/passes/techmap/abc9.cc
@@ -566,7 +566,7 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *current_module, std::stri
 		vector<RTLIL::Cell*> boxes;
 		for (const auto &it : module->cells_) {
 			auto cell = it.second;
-			if (cell->type.in("$_AND_", "$_NOT_")) {
+			if (cell->type.in("$_AND_", "$_NOT_", "$__ABC_FF_")) {
 				module->remove(cell);
 				continue;
 			}
-- 
2.30.2