From de969adcd8214592dfa32be5b61903fe7893d29b Mon Sep 17 00:00:00 2001
From: Eddie Hung <eddie@fpgeh.com>
Date: Tue, 14 Jan 2020 10:13:29 -0800
Subject: [PATCH] autoname: do not autoname ports

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

diff --git a/passes/cmds/autoname.cc b/passes/cmds/autoname.cc
index 4614a8153..50632201e 100644
--- a/passes/cmds/autoname.cc
+++ b/passes/cmds/autoname.cc
@@ -56,7 +56,7 @@ int autoname_worker(Module *module)
 			for (auto &conn : cell->connections()) {
 				string suffix = stringf("_%s", log_id(conn.first));
 				for (auto bit : conn.second)
-					if (bit.wire != nullptr && bit.wire->name[0] == '$') {
+					if (bit.wire != nullptr && bit.wire->name[0] == '$' && !bit.wire->port_id) {
 						IdString new_name(cell->name.str() + suffix);
 						int score = wire_score.at(bit.wire);
 						if (cell->output(conn.first)) score = 0;