fun unit @sink (unit) {
init:
  bid: b0
  allocations:

block b0:
  %b0:p0:unit
  ret unit:unit
}

fun i32 @deadcode () {
init:
  bid: b0
  allocations:
    %l0:i32:y

block b0:
  %b0:i0:i32 = add 100:i32 200:i32
  %b0:i1:unit = store %b0:i0:i32 %l0:i32*

  br undef:i1, b1(), b2()

block b1:
  %b1:i0:unit = call @sink:[ret:unit params:(unit)]*(unit:unit)

  j b3()

block b2:
  %b2:i0:unit = store 42:i32 %l0:i32*

  j b3()

block b3:
  ret 0:i32
}