1 files changed, 0 insertions, 37 deletions
diff --git a/chiselFrontend/src/main/scala/chisel3/dontTouch.scala b/chiselFrontend/src/main/scala/chisel3/dontTouch.scala
deleted file mode 100644
index 5dfd9f19..00000000
--- a/chiselFrontend/src/main/scala/chisel3/dontTouch.scala
+++ /dev/null
@@ -1,37 +0,0 @@
-package chisel3
-
-import chisel3.experimental.{ChiselAnnotation, annotate, requireIsHardware}
-import firrtl.transforms.DontTouchAnnotation
-
-/** Marks that a signal should not be removed by Chisel and Firrtl optimization passes
-  *
-  * @example {{{
-  * class MyModule extends Module {
-  *   val io = IO(new Bundle {
-  *     val a = Input(UInt(32.W))
-  *     val b = Output(UInt(32.W))
-  *   })
-  *   io.b := io.a
-  *   val dead = io.a +% 1.U // normally dead would be pruned by DCE
-  *   dontTouch(dead) // Marking it as such will preserve it
-  * }
-  * }}}
-  * @note Calling this on [[Data]] creates an annotation that Chisel emits to a separate annotations
-  * file. This file must be passed to FIRRTL independently of the `.fir` file. The execute methods
-  * in [[chisel3.Driver]] will pass the annotations to FIRRTL automatically.
-  */
-object dontTouch { // scalastyle:ignore object.name
-  /** Marks a signal to be preserved in Chisel and Firrtl
-    *
-    * @note Requires the argument to be bound to hardware
-    * @param data The signal to be marked
-    * @return Unmodified signal `data`
-    */
-  def apply[T <: Data](data: T)(implicit compileOptions: CompileOptions): T = {
-    if (compileOptions.checkSynthesizable) {
-      requireIsHardware(data, "Data marked dontTouch")
-    }
-    annotate(new ChiselAnnotation { def toFirrtl = DontTouchAnnotation(data.toNamed) })
-    data
-  }
-}