From c5e13f412a47fa165e8260648324df94b9cd3dcf Mon Sep 17 00:00:00 2001
From: Eddie Hung <eddie@fpgeh.com>
Date: Mon, 9 Mar 2020 14:54:57 -0700
Subject: [PATCH] sta: do not add constant driven POs as endpoints

---
 passes/cmds/sta.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/passes/cmds/sta.cc b/passes/cmds/sta.cc
index d71e71716..1ffc70838 100644
--- a/passes/cmds/sta.cc
+++ b/passes/cmds/sta.cc
@@ -136,7 +136,8 @@ struct StaWorker
 			}
 			if (wire->port_output)
 				for (const auto &b : sigmap(wire))
-					endpoints.insert(b);
+					if (b.wire)
+						endpoints.insert(b);
 		}
 	}