Nested Recursive Functions Broken in Swift

fact.swift

func run() -> Int {
  func fact(n : Int) -> Int {
    return n == 0 ? 1 : n * fact(n-1)
  }
  return fact(3)
}
println(run())

// Gives the following error:
// Instruction does not dominate all uses!
//   %2 = bitcast %Si* %0 to %swift.opaque*
//   %3 = ptrtoint %swift.opaque* %2 to i64
// LLVM ERROR: Broken function found, compilation aborted!