From 2e5e34d426a58e1074e12962a496bde4cc5f9930 Mon Sep 17 00:00:00 2001
From: Geza Lore <glore@tenstorrent.com>
Date: Fri, 25 Sep 2026 15:41:38 +0100
Subject: [PATCH] Internals: Set fabricated variable lifetimes

Set implicit net and traced coverage var lifetimes. No functional change.
---
 src/V3Coverage.cpp | 1 +
 src/V3LinkDot.cpp  | 1 +
 2 files changed, 2 insertions(+)

diff --git a/src/V3Coverage.cpp b/src/V3Coverage.cpp
index 2da9de2e2..f84b8ff83 100644
--- a/src/V3Coverage.cpp
+++ b/src/V3Coverage.cpp
@@ -199,6 +199,7 @@ class CoverageVisitor final : public VNVisitor {
             AstVar* const varp = new AstVar{fl_nowarn, VVarType::MODULETEMP, trace_var_name,
                                             incp->findUInt32DType()};
             varp->setIgnoreSchedWrite();  // Ignore the increment output, so no UNOPTFLAT
+            varp->lifetime(VLifetime::STATIC_IMPLICIT);
             varp->trace(true);
             m_modp->addStmtsp(varp);
             UINFO(5, "New coverage trace: " << varp);
diff --git a/src/V3LinkDot.cpp b/src/V3LinkDot.cpp
index 57507f074..8ef3a6ad2 100644
--- a/src/V3LinkDot.cpp
+++ b/src/V3LinkDot.cpp
@@ -3285,6 +3285,7 @@ class LinkDotResolveVisitor final : public VNVisitor {
         }
         AstVar* const newp
             = new AstVar{nodep->fileline(), VVarType::WIRE, nodep->name(), VFlagLogicPacked{}, 1};
+        newp->lifetime(VLifetime::STATIC_IMPLICIT);
         newp->trace(modp->modTrace());
         modp->addStmtsp(newp);
         // Link it to signal list, must add the variable under the module;