2 files changed, 12 insertions, 9 deletions
diff --git a/chiselFrontend/src/main/scala/chisel3/core/Bits.scala b/chiselFrontend/src/main/scala/chisel3/core/Bits.scala
index 94d808a4..9cca5d9d 100644
--- a/chiselFrontend/src/main/scala/chisel3/core/Bits.scala
+++ b/chiselFrontend/src/main/scala/chisel3/core/Bits.scala
@@ -210,15 +210,6 @@ sealed abstract class Bits(dirArg: Direction, width: Width, override val litArg:
 
   def do_asSInt(implicit sourceInfo: SourceInfo): SInt
 
-  /** Reinterpret cast to an UInt.
-    *
-    * @note value not guaranteed to be preserved: for example, a SInt of width
-    * 3 and value -1 (0b111) would become an UInt with value 7
-    */
-  final def asUInt(): UInt = macro SourceInfoTransform.noArg
-
-  def do_asUInt(implicit sourceInfo: SourceInfo): UInt
-
   /** Reinterpret cast to Bits. */
   final def asBits(): Bits = macro SourceInfoTransform.noArg
 
diff --git a/chiselFrontend/src/main/scala/chisel3/core/Data.scala b/chiselFrontend/src/main/scala/chisel3/core/Data.scala
index d5704369..d31e50ff 100644
--- a/chiselFrontend/src/main/scala/chisel3/core/Data.scala
+++ b/chiselFrontend/src/main/scala/chisel3/core/Data.scala
@@ -114,6 +114,18 @@ abstract class Data(dirArg: Direction) extends HasId {
     */
   @deprecated("Use asBits, which makes the reinterpret cast more explicit and actually returns Bits", "chisel3")
   def toBits(): UInt = SeqUtils.do_asUInt(this.flatten)(DeprecatedSourceInfo)
+
+  /** Reinterpret cast to UInt.
+    *
+    * @note value not guaranteed to be preserved: for example, a SInt of width
+    * 3 and value -1 (0b111) would become an UInt with value 7
+    * @note Aggregates are recursively packed with the first element appearing
+    * in the least-significant bits of the result.
+    */
+  final def asUInt(): UInt = macro SourceInfoTransform.noArg
+
+  def do_asUInt(implicit sourceInfo: SourceInfo): UInt =
+    SeqUtils.do_asUInt(this.flatten)(sourceInfo)
 }
 
 object Wire {