From 1298d0c7cf2bd48f99a19cb767efa4813ff4da7c Mon Sep 17 00:00:00 2001
From: Matt Liberty <mliberty@precisioninno.com>
Date: Thu, 3 Aug 2023 10:25:56 -0700
Subject: [PATCH] gui: skip virtual clocks in the clock tree viewer

Signed-off-by: Matt Liberty <mliberty@precisioninno.com>
---
 src/gui/src/clockWidget.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gui/src/clockWidget.cpp b/src/gui/src/clockWidget.cpp
index 188ba694841..d29d71a2dd7 100644
--- a/src/gui/src/clockWidget.cpp
+++ b/src/gui/src/clockWidget.cpp
@@ -1350,6 +1350,9 @@ void ClockWidget::populate()
   stagui.setCorner(corner_box_->currentData().value<sta::Corner*>());
 
   for (auto& tree : stagui.getClockTrees()) {
+    if (!tree->getNet()) {  // skip virtual clocks
+      continue;
+    }
     auto* view = new ClockTreeView(tree.release(), &stagui, logger_, this);
     views_.emplace_back(view);
     clocks_tab_->addTab(view, view->getClockName());