(
    ; Unlabeled loop. Can be exited by jumping out

    (loop
        (nop)
        (nop)
        (nop)
    )

    (barrier)

    ; The above is equivalent to:

    (:label)
    (nop)
    (nop)
    (nop)
    (j :label)

    (barrier)

    ; The label name can be specified.
    ; This adds a start label and ":label-end" at the end of the loop:

    (loop :repeat
        (nop)
        (nop)
        (j :repeat-end)
        (nop)
    )

    (barrier)

    ; The above is equivalent to: (labels changed to avoid a compile error)

    (:repeat2)
    (nop)
    (nop)
    (j :repeat2-end)
    (nop)
    (j :repeat2)
    (:repeat2-end)
)