- Simplest way to make custom transforms run in same place as they did prior to Dependency API

tapeout/src/main/scala/transforms/.pads/AddIOPadsTransform.scala

@@ -5,12 +5,18 @@ package barstools.tapeout.transforms.pads
 import firrtl._
 import firrtl.passes._
 import barstools.tapeout.transforms._
+import firrtl.options.Dependency
+import firrtl.stage.Forms
+import firrtl.stage.TransformManager.TransformDependency
 
 import scala.collection.mutable
 
 // Main Add IO Pad transform operates on low Firrtl
 class AddIOPadsTransform extends Transform with SeqTransformBased with DependencyAPIMigration {
 
+  override def prerequisites: Seq[TransformDependency] = Forms.LowForm
+  override def optionalPrerequisiteOf: Seq[TransformDependency] = Forms.LowEmitters
+
   val transformList = new mutable.ArrayBuffer[Transform]
   def transforms: Seq[Transform] = transformList