Add a new API partition_edges() to RRGraphBuilder

vpr/src/device/rr_graph_builder.h

@@ -178,6 +178,12 @@ class RRGraphBuilder {
         return node_storage_.validate();
     }
 
+    /** @brief Sorts edge data such that configurable edges appears before
+     *  non-configurable edges. */
+    inline void partition_edges() {
+        node_storage_.partition_edges();
+    }
+
     /** @brief Init per node fan-in data.  Should only be called after all edges have
      * been allocated.
      * @note

vpr/src/route/rr_graph.cpp

@@ -725,7 +725,7 @@ static void build_rr_graph(const t_graph_type graph_type,
 
     //Partition the rr graph edges for efficient access to configurable/non-configurable
     //edge subsets. Must be done after RR switches have been allocated
-    device_ctx.rr_nodes.partition_edges();
+    device_ctx.rr_graph_builder.partition_edges();
 
     //Save the channel widths for the newly constructed graph
     device_ctx.chan_width = nodes_per_chan;

vpr/src/route/rr_graph_uxsdcxx_serializer.h

@@ -959,7 +959,7 @@ class RrGraphSerializer final : public uxsd::RrGraphBase<RrGraphContextTypes> {
         // configurable/non-configurable edge subsets. Must be done after RR
         // switches have been allocated.
         rr_graph_builder_->mark_edges_as_rr_switch_ids();
-        rr_nodes_->partition_edges();
+        rr_graph_builder_->partition_edges();
 
         for (int source_node = 0; source_node < (ssize_t)rr_nodes_->size(); ++source_node) {
             int num_edges = rr_nodes_->num_edges(RRNodeId(source_node));