From a68fe8ea0a76a396b7ba14339bd227c2c9b5a1fb Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 14 Apr 2023 07:12:18 -0700
Subject: [PATCH] Initialize NetNet::port_index_

The port_index_ member of the NetNet is not initialized which can lead to
undefined behavior. Make sure to initialize to -1 to indicate that the net
is not associated with any port.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
---
 netlist.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/netlist.h b/netlist.h
index 56ae221ff..3e1f48a9a 100644
--- a/netlist.h
+++ b/netlist.h
@@ -825,7 +825,7 @@ class NetNet  : public NetObj, public PortType {
       std::vector<bool> lref_mask_;
 
       std::vector<class NetDelaySrc*> delay_paths_;
-      int       port_index_;
+      int       port_index_ = -1;
 };
 
 /*