From 826b03c21f492a8fc7c3c4f27007ff85c978f07b Mon Sep 17 00:00:00 2001
From: Gilberto Abram <gilberto@hudson-trading.com>
Date: Tue, 24 Feb 2026 14:08:01 -0500
Subject: [PATCH] Fix segfault in EmitCSyms::getSymCtorStmts (#7142) (#7143)

---
 src/V3EmitCSyms.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/V3EmitCSyms.cpp b/src/V3EmitCSyms.cpp
index c7dee5e68..5a9c6398f 100644
--- a/src/V3EmitCSyms.cpp
+++ b/src/V3EmitCSyms.cpp
@@ -828,8 +828,9 @@ std::vector<std::string> EmitCSyms::getSymCtorStmts() {
             stmt += ", ";
             stmt += varp->vlEnumDir();  // VLVD_IN etc
             if (varp->dtypep()->skipRefp()->isSigned()) stmt += "|VLVF_SIGNED";
-            if (varp->dtypep()->skipRefp()->basicp()->keyword() == VBasicDTypeKwd::BIT)
-                stmt += "|VLVF_BITVAR";
+            if (AstBasicDType* const basicp = varp->dtypep()->skipRefp()->basicp()) {
+                if (basicp->keyword() == VBasicDTypeKwd::BIT) stmt += "|VLVF_BITVAR";
+            }
             stmt += ", ";
             stmt += std::to_string(udim);
             stmt += ", ";