From 7fd1e8323548c981f6a90d881f3e47b43564cdc6 Mon Sep 17 00:00:00 2001
From: Ryszard Rozak <rrozak@antmicro.com>
Date: Thu, 26 Feb 2026 10:17:38 +0100
Subject: [PATCH] Handle unions

Signed-off-by: Ryszard Rozak <rrozak@antmicro.com>
---
 src/V3Force.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/V3Force.cpp b/src/V3Force.cpp
index 9eab4ff47..2fd7d163e 100644
--- a/src/V3Force.cpp
+++ b/src/V3Force.cpp
@@ -355,6 +355,11 @@ private:
                     enStructp = new AstStructDType{structp->fileline(), structp->packed()
                                                                             ? VSigning::SIGNED
                                                                             : VSigning::NOSIGN};
+                } else if (VN_IS(structp, UnionDType) && structp->packed()) {
+                    const AstUnionDType* const unionp = VN_AS(structp, UnionDType);
+                    enStructp = new AstUnionDType{
+                        unionp->fileline(), unionp->isSoft(), unionp->isTagged(),
+                        unionp->packed() ? VSigning::SIGNED : VSigning::NOSIGN};
                 } else {
                     varp->v3fatalSrc("Unsupported: Force of variable of unhandled data type");
                     return dtypep;