$2b997e90 conditional-register-order.js:4:1
  Registers: 7
  Blocks:    1
  Constants:
    [0] = Undefined

block0:
  [   0] GetGlobal dst:reg6, `foo`
  [  18] Call dst:reg5, callee:reg6, this_value:Undefined, foo
  [  38] End value:reg5


foo$1d0ffb84 conditional-register-order.js:2:5
  Registers: 6
  Blocks:    3
  Constants:
    [0] = Int32(1)
    [1] = Int32(2)

block0:
  [   0] JumpFalse condition:arg0, target:block2

block1:
  [  10] Mov dst:reg5, src:Int32(1)
  [  20] Return value:reg5

block2:
  [  28] Mov dst:reg5, src:Int32(2)
  [  38] Return value:reg5