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-rw-r--r--src/main/scala/firrtl/passes/Resolves.scala20
1 files changed, 17 insertions, 3 deletions
diff --git a/src/main/scala/firrtl/passes/Resolves.scala b/src/main/scala/firrtl/passes/Resolves.scala
index 97cc4bb3..15750b76 100644
--- a/src/main/scala/firrtl/passes/Resolves.scala
+++ b/src/main/scala/firrtl/passes/Resolves.scala
@@ -5,9 +5,14 @@ package firrtl.passes
import firrtl._
import firrtl.ir._
import firrtl.Mappers._
+import firrtl.options.{Dependency, PreservesAll}
import Utils.throwInternalError
-object ResolveKinds extends Pass {
+
+object ResolveKinds extends Pass with PreservesAll[Transform] {
+
+ override val prerequisites = firrtl.stage.Forms.WorkingIR
+
type KindMap = collection.mutable.LinkedHashMap[String, Kind]
def find_port(kinds: KindMap)(p: Port): Port = {
@@ -45,7 +50,13 @@ object ResolveKinds extends Pass {
c copy (modules = c.modules map resolve_kinds)
}
-object ResolveFlows extends Pass {
+object ResolveFlows extends Pass with PreservesAll[Transform] {
+
+ override val prerequisites =
+ Seq( Dependency(passes.ResolveKinds),
+ Dependency(passes.InferTypes),
+ Dependency(passes.Uniquify) ) ++ firrtl.stage.Forms.WorkingIR
+
def resolve_e(g: Flow)(e: Expression): Expression = e match {
case ex: WRef => ex copy (flow = g)
case WSubField(exp, name, tpe, _) => WSubField(
@@ -88,7 +99,10 @@ object ResolveGenders extends Pass {
}
-object CInferMDir extends Pass {
+object CInferMDir extends Pass with PreservesAll[Transform] {
+
+ override val prerequisites = firrtl.stage.Forms.ChirrtlForm :+ Dependency(CInferTypes)
+
type MPortDirMap = collection.mutable.LinkedHashMap[String, MPortDir]
def infer_mdir_e(mports: MPortDirMap, dir: MPortDir)(e: Expression): Expression = e match {