From 749a66b7a2333a72ee6145853a8ba0b47b7503a2 Mon Sep 17 00:00:00 2001
From: Wilson Snyder <wsnyder@wsnyder.org>
Date: Wed, 13 Oct 2021 21:29:14 -0400
Subject: [PATCH] Add assertion on mix of combo/posedge (#3170)

---
 src/V3Clock.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/V3Clock.cpp b/src/V3Clock.cpp
index 7f941851d..07d8e2c81 100644
--- a/src/V3Clock.cpp
+++ b/src/V3Clock.cpp
@@ -136,6 +136,7 @@ private:
                           "Unsupported: Complicated event expression in sensitive activity list");
             return nullptr;
         }
+        UASSERT_OBJ(nodep->varrefp(), nodep, "No clock found on sense item");
         AstVarScope* clkvscp = nodep->varrefp()->varScopep();
         if (nodep->edgeType() == VEdgeType::ET_POSEDGE) {
             AstVarScope* lastVscp = getCreateLastClk(clkvscp);