diff options
Diffstat (limited to 'src/main/scala/firrtl/transforms/CheckCombLoops.scala')
| -rw-r--r-- | src/main/scala/firrtl/transforms/CheckCombLoops.scala | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/main/scala/firrtl/transforms/CheckCombLoops.scala b/src/main/scala/firrtl/transforms/CheckCombLoops.scala index 29f9ffdb..dbfd5cf8 100644 --- a/src/main/scala/firrtl/transforms/CheckCombLoops.scala +++ b/src/main/scala/firrtl/transforms/CheckCombLoops.scala @@ -12,7 +12,7 @@ import firrtl.annotations._ import firrtl.Utils.throwInternalError import firrtl.graph._ import firrtl.analyses.InstanceGraph -import firrtl.options.{Dependency, PreservesAll, RegisteredTransform, ShellOption} +import firrtl.options.{Dependency, RegisteredTransform, ShellOption} /** * A case class that represents a net in the circuit. This is necessary since combinational loop @@ -100,8 +100,7 @@ case class CombinationalPath(sink: ReferenceTarget, sources: Seq[ReferenceTarget */ class CheckCombLoops extends Transform with RegisteredTransform - with DependencyAPIMigration - with PreservesAll[Transform] { + with DependencyAPIMigration { override def prerequisites = firrtl.stage.Forms.MidForm ++ Seq( Dependency(passes.LowerTypes), @@ -112,6 +111,8 @@ class CheckCombLoops extends Transform override def optionalPrerequisiteOf = Seq.empty + override def invalidates(a: Transform) = false + import CheckCombLoops._ val options = Seq( |