From f913c3ddbb3e7b4364ed4437c65ac78c4da9174b Mon Sep 17 00:00:00 2001
From: Matt Liberty <mliberty@precisioninno.com>
Date: Thu, 21 Dec 2023 14:35:25 -0800
Subject: [PATCH] temporary hack until Cherry can properly fix it

Signed-off-by: Matt Liberty <mliberty@precisioninno.com>
---
 liberty/LibertyBuilder.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/liberty/LibertyBuilder.cc b/liberty/LibertyBuilder.cc
index c80a1de7..a68e559f 100644
--- a/liberty/LibertyBuilder.cc
+++ b/liberty/LibertyBuilder.cc
@@ -687,7 +687,7 @@ LibertyBuilder::makeTimingArc(TimingArcSet *set,
 			      RiseFall *to_rf,
 			      TimingModel *model)
 {
-  return new TimingArc(set, from_rf->asTransition(),
+  return new TimingArc(set, from_rf ? from_rf->asTransition() : nullptr,
 		       to_rf->asTransition(), model);
 }