3 files changed, 28 insertions, 1 deletions
diff --git a/src/test/scala/chiselTests/experimental/hierarchy/DefinitionSpec.scala b/src/test/scala/chiselTests/experimental/hierarchy/DefinitionSpec.scala
index 63beb394..05344360 100644
--- a/src/test/scala/chiselTests/experimental/hierarchy/DefinitionSpec.scala
+++ b/src/test/scala/chiselTests/experimental/hierarchy/DefinitionSpec.scala
@@ -329,6 +329,16 @@ class DefinitionSpec extends ChiselFunSpec with Utils {
       annos should contain(MarkAnnotation("~Top|HasEither>x".rt, "xright"))
       annos should contain(MarkAnnotation("~Top|HasEither>y".rt, "yleft"))
     }
+    it("3.12: should work on tuple2") {
+      class Top() extends Module {
+        val i = Definition(new HasTuple2())
+        mark(i.xy._1, "x")
+        mark(i.xy._2, "y")
+      }
+      val (_, annos) = getFirrtlAndAnnos(new Top)
+      annos should contain(MarkAnnotation("~Top|HasTuple2>x".rt, "x"))
+      annos should contain(MarkAnnotation("~Top|HasTuple2>y".rt, "y"))
+    }
   }
   describe("4: toDefinition") {
     it("4.0: should work on modules") {
diff --git a/src/test/scala/chiselTests/experimental/hierarchy/Examples.scala b/src/test/scala/chiselTests/experimental/hierarchy/Examples.scala
index 5b78b7cc..10c0464d 100644
--- a/src/test/scala/chiselTests/experimental/hierarchy/Examples.scala
+++ b/src/test/scala/chiselTests/experimental/hierarchy/Examples.scala
@@ -200,6 +200,12 @@ object Examples {
     @public val y: Either[Bool, UInt] = Left(Wire(Bool()).suggestName("y"))
   }
   @instantiable
+  class HasTuple2() extends Module {
+    val x = Wire(UInt(3.W))
+    val y = Wire(Bool())
+    @public val xy = (x, y)
+  }
+  @instantiable
   class HasVec() extends Module {
     @public val x = VecInit(1.U, 2.U, 3.U)
   }
diff --git a/src/test/scala/chiselTests/experimental/hierarchy/InstanceSpec.scala b/src/test/scala/chiselTests/experimental/hierarchy/InstanceSpec.scala
index 45d1f85f..9683d648 100644
--- a/src/test/scala/chiselTests/experimental/hierarchy/InstanceSpec.scala
+++ b/src/test/scala/chiselTests/experimental/hierarchy/InstanceSpec.scala
@@ -298,7 +298,18 @@ class InstanceSpec extends ChiselFunSpec with Utils {
       annos should contain(MarkAnnotation("~Top|Top/i:HasEither>x".rt, "xright"))
       annos should contain(MarkAnnotation("~Top|Top/i:HasEither>y".rt, "yleft"))
     }
-    it("3.12: should properly support val modifiers") {
+    it("3.12: should work on tuple2") {
+      class Top() extends Module {
+        val i = Instance(Definition(new HasTuple2()))
+        mark(i.xy._1, "x")
+        mark(i.xy._2, "y")
+      }
+      val (_, annos) = getFirrtlAndAnnos(new Top)
+      annos should contain(MarkAnnotation("~Top|Top/i:HasTuple2>x".rt, "x"))
+      annos should contain(MarkAnnotation("~Top|Top/i:HasTuple2>y".rt, "y"))
+    }
+
+    it("3.13: should properly support val modifiers") {
       class SupClass extends Module {
         val value = 10
         val overriddenVal = 10