From c5394c223cec58b211e7dd45f5b1ec6301208430 Mon Sep 17 00:00:00 2001
From: Matt Liberty <mliberty@precisioninno.com>
Date: Wed, 24 May 2023 22:39:41 -0700
Subject: [PATCH] cts: stop infinite recursion when length is not found

Signed-off-by: Matt Liberty <mliberty@precisioninno.com>
---
 src/cts/src/HTreeBuilder.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/cts/src/HTreeBuilder.cpp b/src/cts/src/HTreeBuilder.cpp
index b2996a490df..3e7e8f7dbfb 100644
--- a/src/cts/src/HTreeBuilder.cpp
+++ b/src/cts/src/HTreeBuilder.cpp
@@ -541,6 +541,9 @@ unsigned HTreeBuilder::computeMinDelaySegment(const unsigned length,
   }
 
   if (minKey == std::numeric_limits<unsigned>::max()) {
+    if (tolerance >= MAX_TOLERANCE) {
+      return minKey;
+    }
     // Increasing tolerance
     return computeMinDelaySegment(length,
                                   inputSlew,