Convert PreservesAll to explicit invalidates=false

Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/main/scala/firrtl/passes/ReplaceAccesses.scala b/src/main/scala/firrtl/passes/ReplaceAccesses.scala
index 5edab1f0..e31d9410 100644
--- a/src/main/scala/firrtl/passes/ReplaceAccesses.scala
+++ b/src/main/scala/firrtl/passes/ReplaceAccesses.scala
@@ -6,15 +6,17 @@ import firrtl.Transform
 import firrtl.ir._
 import firrtl.{WSubAccess, WSubIndex}
 import firrtl.Mappers._
-import firrtl.options.{Dependency, PreservesAll}
+import firrtl.options.Dependency
 
 /** Replaces constant [[firrtl.WSubAccess]] with [[firrtl.WSubIndex]]
   * TODO Fold in to High Firrtl Const Prop
   */
-object ReplaceAccesses extends Pass with PreservesAll[Transform] {
+object ReplaceAccesses extends Pass {
 
   override def prerequisites = firrtl.stage.Forms.Deduped :+ Dependency(PullMuxes)
 
+  override def invalidates(a: Transform) = false
+
   def run(c: Circuit): Circuit = {
     def onStmt(s: Statement): Statement = s map onStmt map onExp
     def onExp(e: Expression): Expression = e match {