Improve IOBinders implementation | add debug prints

generators/chipyard/src/main/scala/IOBinders.scala

@@ -67,10 +67,29 @@ abstract trait HasIOBinders { this: LazyModule =>
   })
 
   // A publicly accessible list of IO cells (useful for a floorplanning tool, for example)
-  lazy val iocells = (lzyFlattened.values ++ impFlattened.values).unzip._2.flatten.toBuffer
+  val iocells = InModuleBody { (lzyFlattened.values ++ impFlattened.values).unzip._2.flatten.toBuffer }
 
   // A mapping between stringified DigitalSystem traits and their corresponding ChipTop ports
-  lazy val portMap = iobinders.keys.map(k => k -> (lzyFlattened(k)._1 ++ impFlattened(k)._1)).toMap
+  val portMap = InModuleBody { iobinders.keys.map(k => k -> (lzyFlattened(k)._1 ++ impFlattened(k)._1)).toMap }
+
+  // A mapping between stringified DigitalSystem traits and their corresponding ChipTop iocells
+  val iocellMap = InModuleBody { iobinders.keys.map(k => k -> (lzyFlattened(k)._2 ++ impFlattened(k)._2)).toMap }
+
+  InModuleBody {
+    println("IOCells generated by IOBinders:")
+    for ((k, v) <- iocellMap) {
+      if (!v.isEmpty) {
+        val cells = v.map(_.getClass.getSimpleName).groupBy(identity).mapValues(_.size)
+
+        println(s"  IOBinder for $k generated:")
+        for ((t, c) <- cells) { println(s"    $c X $t") }
+      }
+    }
+    println()
+    val totals = iocells.map(_.getClass.getSimpleName).groupBy(identity).mapValues(_.size)
+    println(s"  Total generated ${iocells.size} IOCells:")
+    for ((t, c) <- totals) { println(s"    $c X $t") }
+  }
 }
 
 // Note: The parameters instance is accessible only through LazyModule