fun unit @foo {
init:
  bid: b0
  allocations: 


block b0:
  ret unit:unit
}

fun i32 @main {
init:
  bid: b0
  allocations: 


block b0:
  %b0:i0:unit = call @foo()
  ret 1:i32

block b1:
  ret 0:i32
}