From 27cd029a0a6b3a12e4579e2bb5316836d040350b Mon Sep 17 00:00:00 2001
From: Matt Liberty <mliberty@precisioninno.com>
Date: Fri, 1 Mar 2024 18:43:07 -0800
Subject: [PATCH] Fix crash in MakeTimingModel::findArea when a cell has no
 Liberty

Signed-off-by: Matt Liberty <mliberty@precisioninno.com>
---
 search/MakeTimingModel.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/search/MakeTimingModel.cc b/search/MakeTimingModel.cc
index ff9a861f..04bf5c92 100644
--- a/search/MakeTimingModel.cc
+++ b/search/MakeTimingModel.cc
@@ -168,7 +168,9 @@ 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;