fun i32 @main () {
init:
  bid: b0
  allocations: 
    %l0:i32:a
    %l1:i32:b

block b0:
  %b0:i0:unit = store 1:i32 %l0:*i32
  %b0:i1:unit = store 0:i32 %l1:*i32
  %b0:i2:i32 = load %l0:*i32
  switch %b0:i2:i32 default b4() [
    0:i32 b2()
    1:i32 b3()
  ]

block b1:
  %b1:i0:i32 = load %l1:*i32
  %b1:i1:u1 = cmp eq %b1:i0:i32 2:i32
  %b1:i2:i32 = typecast %b1:i1:u1 to i32
  ret %b1:i2:i32

block b2:
  %b2:i0:i32 = load %l1:*i32
  %b2:i1:i32 = add %b2:i0:i32 1:i32
  %b2:i2:unit = store %b2:i1:i32 %l1:*i32
  j b1()

block b3:
  %b3:i0:i32 = load %l1:*i32
  %b3:i1:i32 = add %b3:i0:i32 2:i32
  %b3:i2:unit = store %b3:i1:i32 %l1:*i32
  j b1()

block b4:
  %b4:i0:i32 = load %l1:*i32
  %b4:i1:i32 = add %b4:i0:i32 3:i32
  %b4:i2:unit = store %b4:i1:i32 %l1:*i32
  j b1()

block b5:
  ret 0:i32
}