aboutsummaryrefslogtreecommitdiff
path: root/src/main/scala/firrtl/passes/DeadCodeElimination.scala
diff options
context:
space:
mode:
Diffstat (limited to 'src/main/scala/firrtl/passes/DeadCodeElimination.scala')
-rw-r--r--src/main/scala/firrtl/passes/DeadCodeElimination.scala12
1 files changed, 6 insertions, 6 deletions
diff --git a/src/main/scala/firrtl/passes/DeadCodeElimination.scala b/src/main/scala/firrtl/passes/DeadCodeElimination.scala
index cdff1639..8482fe1d 100644
--- a/src/main/scala/firrtl/passes/DeadCodeElimination.scala
+++ b/src/main/scala/firrtl/passes/DeadCodeElimination.scala
@@ -36,7 +36,7 @@ import annotation.tailrec
object DeadCodeElimination extends Pass {
def name = "Dead Code Elimination"
- private def dceOnce(s: Stmt): (Stmt, Long) = {
+ private def dceOnce(s: Statement): (Statement, Long) = {
val referenced = collection.mutable.HashSet[String]()
var nEliminated = 0L
@@ -48,16 +48,16 @@ object DeadCodeElimination extends Pass {
e
}
- def checkUse(s: Stmt): Stmt = s map checkUse map checkExpressionUse
+ def checkUse(s: Statement): Statement = s map checkUse map checkExpressionUse
- def maybeEliminate(x: Stmt, name: String) =
+ def maybeEliminate(x: Statement, name: String) =
if (referenced(name)) x
else {
nEliminated += 1
- Empty()
+ EmptyStmt
}
- def removeUnused(s: Stmt): Stmt = s match {
+ def removeUnused(s: Statement): Statement = s match {
case x: DefRegister => maybeEliminate(x, x.name)
case x: DefWire => maybeEliminate(x, x.name)
case x: DefNode => maybeEliminate(x, x.name)
@@ -69,7 +69,7 @@ object DeadCodeElimination extends Pass {
}
@tailrec
- private def dce(s: Stmt): Stmt = {
+ private def dce(s: Statement): Statement = {
val (res, n) = dceOnce(s)
if (n > 0) dce(res) else res
}