function PBMAIN
  block entry
    alloca -> 1
    store v1,0
    alloca -> 2
    store v2,0
    call -> 3 c_hlib_lnarr_add
    store v2,v3
    load -> 4 v2
    call -> 5 c_hlib_lnarr_add,v4,10
    store v1,0
    load -> 6 v1
    ret v6
