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-rw-r--r--src/main/scala/firrtl/annotations/Target.scala13
-rw-r--r--src/main/scala/firrtl/annotations/transforms/EliminateTargetPaths.scala13
2 files changed, 25 insertions, 1 deletions
diff --git a/src/main/scala/firrtl/annotations/Target.scala b/src/main/scala/firrtl/annotations/Target.scala
index 1571f98e..c7cb98d2 100644
--- a/src/main/scala/firrtl/annotations/Target.scala
+++ b/src/main/scala/firrtl/annotations/Target.scala
@@ -185,6 +185,19 @@ object Target {
}
}.tryToComplete
}
+
+ /** Returns the module that a [[Target]] "refers" to.
+ *
+ * For a [[ModuleTarget]] or a [[ReferenceTarget]], this is simply the deepest module. For an [[InstanceTarget]] this
+ * is *the module of the instance*.
+ *
+ * @note This differs from [[InstanceTarget.pathlessTarget]] which refers to the module instantiating the instance.
+ */
+ def referringModule(a: IsMember): ModuleTarget = a match {
+ case b: ModuleTarget => b
+ case b: InstanceTarget => b.ofModuleTarget
+ case b: ReferenceTarget => b.pathlessTarget.moduleTarget
+ }
}
/** Represents incomplete or non-standard [[Target]]s
diff --git a/src/main/scala/firrtl/annotations/transforms/EliminateTargetPaths.scala b/src/main/scala/firrtl/annotations/transforms/EliminateTargetPaths.scala
index 2f20430b..e40b80f8 100644
--- a/src/main/scala/firrtl/annotations/transforms/EliminateTargetPaths.scala
+++ b/src/main/scala/firrtl/annotations/transforms/EliminateTargetPaths.scala
@@ -4,6 +4,7 @@ package firrtl.annotations.transforms
import firrtl.Mappers._
import firrtl.analyses.InstanceGraph
+import firrtl.annotations.ModuleTarget
import firrtl.annotations.TargetToken.{Instance, OfModule}
import firrtl.annotations.analysis.DuplicationHelper
import firrtl.annotations._
@@ -114,16 +115,26 @@ class EliminateTargetPaths extends Transform {
val finalModuleList = duplicatedModuleList.filter(m =>
newUsedOfModules.contains(m.name) || (!newUsedOfModules.contains(m.name) && !oldUsedOfModules.contains(m.name))
)
+ lazy val finalModuleSet = finalModuleList.map{ case a: DefModule => a.name }.toSet
// Records how targets have been renamed
val renameMap = RenameMap()
- // Foreach target, calculate the pathless version and only rename targets that are instantiated
+ /* Foreach target, calculate the pathless version and only rename targets that are instantiated. Additionally, rename
+ * module targets
+ */
targets.foreach { t =>
val newTsx = dupMap.makePathless(t)
val newTs = newTsx.filter(c => newUsedOfModules.contains(c.moduleOpt.get))
if(newTs.nonEmpty) {
renameMap.record(t, newTs)
+ val m = Target.referringModule(t)
+ val duplicatedModules = newTs.map(Target.referringModule)
+ val oldModule: Option[ModuleTarget] = m match {
+ case a: ModuleTarget if finalModuleSet(a.module) => Some(a)
+ case _ => None
+ }
+ renameMap.record(m, (duplicatedModules ++ oldModule).distinct)
}
}