From cc910fa4c4b8974c5b7de9d15f0e61bf937d7599 Mon Sep 17 00:00:00 2001
From: Geza Lore <gezalore@gmail.com>
Date: Thu, 30 Oct 2025 15:18:47 +0000
Subject: [PATCH] Internals: Clear 'isPure' cache in V3Depth

---
 src/V3Depth.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/V3Depth.cpp b/src/V3Depth.cpp
index b7f70e3a5..f1728812f 100644
--- a/src/V3Depth.cpp
+++ b/src/V3Depth.cpp
@@ -150,6 +150,8 @@ public:
     explicit DepthVisitor(AstNetlist* nodep)
         : m_tempNames{"__Vdeeptemp"} {
         iterate(nodep);
+        // Extracting expressions can effect purity
+        VIsCached::clearCacheTree();
     }
     ~DepthVisitor() override = default;
 };