[Draw][Breakpoint] Check router_iter only at each iter once by

checkikng only route_net_id and expressions between net iterations.

Author: haydar-c

vpr/src/route/route_utils.cpp

@@ -672,12 +672,25 @@ void update_draw_pres_fac(const float /*new_pres_fac*/) {
 
 #ifndef NO_GRAPHICS
 void update_router_info_and_check_bp(bp_router_type type, int net_id) {
-    if (type == BP_ROUTE_ITER)
+    bool hit_bp = false;
+    if (type == BP_ROUTE_ITER) {
         get_bp_state_globals()->get_glob_breakpoint_state()->router_iter++;
-    else if (type == BP_NET_ID)
+        hit_bp = check_for_breakpoints(false);
+    } else if (type == BP_NET_ID) {
+        // Between net id iters, check only net id and expression breakpoints
         get_bp_state_globals()->get_glob_breakpoint_state()->route_net_id = net_id;
-    f_router_debug = check_for_breakpoints(false);
-    if (f_router_debug) {
+        t_draw_state* draw_state = get_draw_state_vars();
+        for (size_t i = 0; i < draw_state->list_of_breakpoints.size(); i++) {
+            if (draw_state->list_of_breakpoints[i].type == BT_ROUTE_NET_ID && draw_state->list_of_breakpoints[i].active) {
+                hit_bp = check_for_route_net_id_iter_breakpoints(draw_state->list_of_breakpoints[i].bt_route_net_id);
+                break;
+            } else if (draw_state->list_of_breakpoints[i].type == BT_EXPRESSION && draw_state->list_of_breakpoints[i].active) {
+                hit_bp = check_for_expression_breakpoints(draw_state->list_of_breakpoints[i].bt_expression, false);
+                break;
+            }
+        }
+    }
+    if (hit_bp) {
         breakpoint_info_window(get_bp_state_globals()->get_glob_breakpoint_state()->bp_description, *get_bp_state_globals()->get_glob_breakpoint_state(), false);
         update_screen(ScreenUpdatePriority::MAJOR, "Breakpoint Encountered", ROUTING, nullptr);
     }