Merge pull request #1700 from freechipsproject/deprecate-PreservesAll

Deprecate PreservesAll Trait, Remove Usages

1 files changed, 2 insertions, 2 deletions

diff --git a/src/main/scala/firrtl/passes/memlib/ResolveMemoryReference.scala b/src/main/scala/firrtl/passes/memlib/ResolveMemoryReference.scala
index e64f6cd9..29200631 100644
--- a/src/main/scala/firrtl/passes/memlib/ResolveMemoryReference.scala
+++ b/src/main/scala/firrtl/passes/memlib/ResolveMemoryReference.scala
@@ -6,7 +6,6 @@ import firrtl._
 import firrtl.ir._
 import firrtl.Mappers._
 import firrtl.annotations._
-import firrtl.options.PreservesAll
 import firrtl.stage.Forms
 
 /** A component, e.g. register etc. Must be declared only once under the TopAnnotation */
@@ -16,11 +15,12 @@ case class NoDedupMemAnnotation(target: ComponentName) extends SingleTargetAnnot
 
 /** Resolves annotation ref to memories that exactly match (except name) another memory
  */
-class ResolveMemoryReference extends Transform with DependencyAPIMigration with PreservesAll[Transform] {
+class ResolveMemoryReference extends Transform with DependencyAPIMigration {
 
   override def prerequisites = Forms.MidForm
   override def optionalPrerequisites = Seq.empty
   override def optionalPrerequisiteOf = Forms.MidEmitters
+  override def invalidates(a: Transform) = false
 
   /** Helper class for determining when two memories are equivalent while igoring
     * irrelevant details like name and info