added a function to delete the noc routing object within the Noc_context. This is needed since this object is dynamically created.

Author: Srivat97

vpr/src/base/vpr_api.cpp

@@ -1154,6 +1154,13 @@ static void free_routing() {
     routing_ctx.net_status.clear();
     routing_ctx.route_bb.clear();
 }
+/**
+ * @brief handles the deletion of NoC related datastructures.
+ */
+static void free_noc() {
+    auto& noc_ctx = g_vpr_ctx.mutable_noc();
+    delete noc_ctx.noc_flows_router;
+}
 
 void vpr_free_vpr_data_structures(t_arch& Arch,
                                   t_vpr_setup& vpr_setup) {
@@ -1165,6 +1172,7 @@ void vpr_free_vpr_data_structures(t_arch& Arch,
     free_placement();
     free_routing();
     free_atoms();
+    free_noc();
 }
 
 void vpr_free_all(t_arch& Arch,

vpr/src/noc/noc_routing.h

@@ -28,8 +28,8 @@
 #include "noc_storage.h"
 
 class NocRouting {
-    // protected pure virtual functions that should be implemented in derived classes.
-  protected:
+    // pure virtual functions that should be implemented in derived classes.
+  public:
     virtual ~NocRouting() {}
 
     /**