diff options
Diffstat (limited to 'src/main/scala/firrtl/transforms/DeadCodeElimination.scala')
| -rw-r--r-- | src/main/scala/firrtl/transforms/DeadCodeElimination.scala | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/src/main/scala/firrtl/transforms/DeadCodeElimination.scala b/src/main/scala/firrtl/transforms/DeadCodeElimination.scala index 04f1c7d2..0262f535 100644 --- a/src/main/scala/firrtl/transforms/DeadCodeElimination.scala +++ b/src/main/scala/firrtl/transforms/DeadCodeElimination.scala @@ -29,12 +29,13 @@ import collection.mutable * circumstances of their instantiation in their parent module, they will still not be removed. To * remove such modules, use the [[NoDedupAnnotation]] to prevent deduplication. */ -class DeadCodeElimination extends Transform with ResolvedAnnotationPaths with RegisteredTransform +class DeadCodeElimination extends Transform + with ResolvedAnnotationPaths + with RegisteredTransform + with DependencyAPIMigration with PreservesAll[Transform] { - def inputForm = UnknownForm - def outputForm = UnknownForm - override val prerequisites = firrtl.stage.Forms.LowForm ++ + override def prerequisites = firrtl.stage.Forms.LowForm ++ Seq( Dependency(firrtl.passes.RemoveValidIf), Dependency[firrtl.transforms.ConstantPropagation], Dependency(firrtl.passes.memlib.VerilogMemDelays), @@ -42,9 +43,9 @@ class DeadCodeElimination extends Transform with ResolvedAnnotationPaths with Re Dependency[firrtl.transforms.CombineCats], Dependency(passes.CommonSubexpressionElimination) ) - override val optionalPrerequisites = Seq.empty + override def optionalPrerequisites = Seq.empty - override val dependents = + override def dependents = Seq( Dependency[firrtl.transforms.BlackBoxSourceHelper], Dependency[firrtl.transforms.ReplaceTruncatingArithmetic], Dependency[firrtl.transforms.FlattenRegUpdate], |