From: Eddie Hung <eddie@fpgeh.com>
Date: Fri, 14 Jun 2019 20:34:40 +0000 (-0700)
Subject: Leave breadcrumb behind
X-Git-Tag: working-ls180~1237^2~100
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7ff8330d1e159173f9ed3494b85b83cb97208ab5;p=yosys.git

Leave breadcrumb behind
---

diff --git a/backends/aiger/xaiger.cc b/backends/aiger/xaiger.cc
index 4d8bb7f00..df970e341 100644
--- a/backends/aiger/xaiger.cc
+++ b/backends/aiger/xaiger.cc
@@ -185,6 +185,8 @@ struct XAigerWriter
 			if (!bit.wire->port_input)
 				unused_bits.erase(bit);
 
+		// TODO: Speed up toposort -- ultimately we care about
+		//       box ordering, but not individual AIG cells
 		dict<SigBit, pool<IdString>> bit_drivers, bit_users;
 		TopoSort<IdString, RTLIL::sort_by_id_str> toposort;
 		bool abc_box_seen = false;