Emitter: add missing parenthesize calls (#1874)

1 files changed, 3 insertions, 0 deletions

diff --git a/src/main/scala/firrtl/transforms/InlineBooleanExpressions.scala b/src/main/scala/firrtl/transforms/InlineBooleanExpressions.scala
index c02b8dd5..31d69cc4 100644
--- a/src/main/scala/firrtl/transforms/InlineBooleanExpressions.scala
+++ b/src/main/scala/firrtl/transforms/InlineBooleanExpressions.scala
@@ -8,6 +8,7 @@ import firrtl.annotations.TargetToken.{fromStringToTargetToken, OfModule, Ref}
 import firrtl.ir._
 import firrtl.passes.{InferTypes, LowerTypes, SplitExpressions}
 import firrtl.options.Dependency
+import firrtl.stage.Forms
 import firrtl.PrimOps._
 import firrtl.WrappedExpression._
 
@@ -42,6 +43,8 @@ class InlineBooleanExpressions extends Transform with DependencyAPIMigration {
     Dependency(SplitExpressions)
   )
 
+  override def optionalPrerequisiteOf = Forms.BackendEmitters
+
   override def invalidates(a: Transform) = a match {
     case _: DeadCodeElimination => true // this transform does not remove nodes that are unused after inlining
     case _ => false