Does the Kotlin compiler optimizes `when` expressi...

# language-proposals

[raulraja]

Does the Kotlin compiler optimizes when expressions when they are translatable to JVM switch statements?

when (1) {
  0 -> ...
  1 -> ...
}

when ('a') {
'a' -> ...
'b' -> ...
}

If it doesn't is there any way to instruct it to do so or are if/else recommended for high performance cases over when?