From 3d00f5934cb1efe67b7f0071474d007ed82c32b6 Mon Sep 17 00:00:00 2001
From: Matt Liberty <mliberty@precisioninno.com>
Date: Mon, 3 Apr 2023 22:30:05 -0700
Subject: [PATCH] drt: skip special nets in processBTermsAboveTopLayer

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

diff --git a/src/drt/src/TritonRoute.cpp b/src/drt/src/TritonRoute.cpp
index 213a671ece9..cc5fe139041 100644
--- a/src/drt/src/TritonRoute.cpp
+++ b/src/drt/src/TritonRoute.cpp
@@ -974,6 +974,9 @@ void TritonRoute::processBTermsAboveTopLayer()
   if (top_tech_layer != nullptr) {
     int top_layer_idx = top_tech_layer->getRoutingLevel();
     for (auto bterm : block->getBTerms()) {
+      if (bterm->getNet()->isSpecial()) {
+        continue;
+      }
       int bterm_bottom_layer_idx = std::numeric_limits<int>::max();
       for (auto bpin : bterm->getBPins()) {
         for (auto box : bpin->getBoxes()) {