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-rw-r--r--src/main/scala/firrtl/passes/memlib/ResolveMemoryReference.scala4
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