From 8acd1f3f3555ee3c6ef2501d1f9309e1a755fa14 Mon Sep 17 00:00:00 2001
From: James Cherry <cherry@parallaxsw.com>
Date: Thu, 7 Mar 2024 10:36:19 -0700
Subject: [PATCH] MakeTimingModel::findArea() check for liberty

Signed-off-by: James Cherry <cherry@parallaxsw.com>
---
 search/MakeTimingModel.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/search/MakeTimingModel.cc b/search/MakeTimingModel.cc
index c35dfa23..bacdaeea 100644
--- a/search/MakeTimingModel.cc
+++ b/search/MakeTimingModel.cc
@@ -168,7 +168,8 @@ MakeTimingModel::findArea()
   while (leaf_iter->hasNext()) {
     const Instance *inst = leaf_iter->next();
     const LibertyCell *cell = network_->libertyCell(inst);
-    area += cell->area();
+    if (cell)
+      area += cell->area();
   }
   delete leaf_iter;
   return area;