Merge pull request #1700 from freechipsproject/deprecate-PreservesAll

Deprecate PreservesAll Trait, Remove Usages

1 files changed, 3 insertions, 2 deletions

diff --git a/src/main/scala/firrtl/passes/CheckInitialization.scala b/src/main/scala/firrtl/passes/CheckInitialization.scala
index fe0ff450..1eb16a9b 100644
--- a/src/main/scala/firrtl/passes/CheckInitialization.scala
+++ b/src/main/scala/firrtl/passes/CheckInitialization.scala
@@ -6,7 +6,6 @@ import firrtl._
 import firrtl.ir._
 import firrtl.Utils._
 import firrtl.traversals.Foreachers._
-import firrtl.options.PreservesAll
 
 import annotation.tailrec
 
@@ -15,10 +14,12 @@ import annotation.tailrec
   * @note This pass looks for [[firrtl.WVoid]]s left behind by [[ExpandWhens]]
   * @note Assumes single connection (ie. no last connect semantics)
   */
-object CheckInitialization extends Pass with PreservesAll[Transform] {
+object CheckInitialization extends Pass {
 
   override def prerequisites = firrtl.stage.Forms.Resolved
 
+  override def invalidates(a: Transform) = false
+
   private case class VoidExpr(stmt: Statement, voidDeps: Seq[Expression])
 
   class RefNotInitializedException(info: Info, mname: String, name: String, trace: Seq[Statement]) extends PassException(