From a48199d52df23732164c378b6c5dcea5b1b301a1 Mon Sep 17 00:00:00 2001
From: James Cherry <cherry@parallaxsw.com>
Date: Sun, 18 Sep 2022 16:11:21 -0700
Subject: [PATCH] ReportPath::drvrFanout ignore non-wire arcs

Signed-off-by: James Cherry <cherry@parallaxsw.com>
---
 search/ReportPath.cc | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/search/ReportPath.cc b/search/ReportPath.cc
index 66909d47..67801d74 100644
--- a/search/ReportPath.cc
+++ b/search/ReportPath.cc
@@ -2760,14 +2760,16 @@ ReportPath::drvrFanout(Vertex *drvr,
   VertexOutEdgeIterator iter(drvr, graph_);
   while (iter.hasNext()) {
     Edge *edge = iter.next();
-    Pin *pin = edge->to(graph_)->pin();
-    if (network_->isTopLevelPort(pin)) {
-      // Output port counts as a fanout.
-      Port *port = network_->port(pin);
-      fanout += sdc_->portExtFanout(port, min_max) + 1;
+    if (edge->isWire()) {
+      Pin *pin = edge->to(graph_)->pin();
+      if (network_->isTopLevelPort(pin)) {
+        // Output port counts as a fanout.
+        Port *port = network_->port(pin);
+        fanout += sdc_->portExtFanout(port, min_max) + 1;
+      }
+      else
+        fanout++;
     }
-    else
-      fanout++;
   }
   return fanout;
 }