Timing scalac phases

Hello.scala

import scala.annotation.tailrec

class Hello {

  val foo = "abc"

  def bar(a: String) = foo + a

  def fib(n: Int) = {
    @tailrec
    def fibRec(n: Int, a:Int, b:Int): Int = n match {
      case 0 => a
      case _ => fibRec(n-1, b, a+b)
    }
    fibRec(n, 0, 1)
  }

}

timing.txt

$ for p in parser typer tailcalls flatten icode jvm; do
  echo "Running up to and including phase $p"
  time scalac -Ystop-after:$p Hello.scala 
done
Running up to and including phase parser
scalac -Ystop-after:$p Hello.scala  2.87s user 0.19s system 210% cpu 1.453 total
Running up to and including phase typer
scalac -Ystop-after:$p Hello.scala  5.71s user 0.31s system 246% cpu 2.444 total
Running up to and including phase tailcalls
scalac -Ystop-after:$p Hello.scala  6.50s user 0.33s system 258% cpu 2.639 total
Running up to and including phase flatten
scalac -Ystop-after:$p Hello.scala  8.54s user 0.36s system 276% cpu 3.214 total
Running up to and including phase icode
scalac -Ystop-after:$p Hello.scala  8.63s user 0.36s system 273% cpu 3.284 total
Running up to and including phase jvm
scalac -Ystop-after:$p Hello.scala  8.80s user 0.41s system 271% cpu 3.398 total