(module
 (type $0 (func))
 (type $1 (func (result i32)))
 (memory $0 0)
 (func $push1 (type $0)
  (local $x i32)
  (block $out
   (br_if $out
    (i32.const 2)
   )
   (set_local $x
    (i32.const 1)
   )
   (drop
    (get_local $x)
   )
  )
 )
 (func $push2 (type $0)
  (local $x i32)
  (local $y i32)
  (block $out
   (br_if $out
    (i32.const 2)
   )
   (set_local $x
    (i32.const 1)
   )
   (set_local $y
    (i32.const 3)
   )
   (drop
    (get_local $x)
   )
   (drop
    (get_local $y)
   )
  )
 )
 (func $push1-twice (type $0)
  (local $x i32)
  (block $out
   (br_if $out
    (i32.const 2)
   )
   (br_if $out
    (i32.const 3)
   )
   (set_local $x
    (i32.const 1)
   )
   (drop
    (get_local $x)
   )
  )
 )
 (func $push1-twiceb (type $0)
  (local $x i32)
  (block $out
   (br_if $out
    (i32.const 2)
   )
   (nop)
   (br_if $out
    (i32.const 3)
   )
   (set_local $x
    (i32.const 1)
   )
   (drop
    (get_local $x)
   )
  )
 )
 (func $push2-twice (type $0)
  (local $x i32)
  (local $y i32)
  (block $out
   (br_if $out
    (i32.const 2)
   )
   (br_if $out
    (i32.const 2)
   )
   (set_local $x
    (i32.const 1)
   )
   (set_local $y
    (i32.const 3)
   )
   (drop
    (get_local $x)
   )
   (drop
    (get_local $y)
   )
  )
 )
 (func $ignore-last (type $0)
  (local $x i32)
  (block $out
   (set_local $x
    (i32.const 1)
   )
   (br_if $out
    (i32.const 2)
   )
  )
 )
 (func $ignore-last2 (type $0)
  (local $x i32)
  (block $out
   (set_local $x
    (i32.const 1)
   )
   (nop)
   (nop)
   (br_if $out
    (i32.const 2)
   )
  )
 )
 (func $push-if (type $0)
  (local $x i32)
  (block $out
   (if
    (i32.const 2)
    (nop)
   )
   (set_local $x
    (i32.const 1)
   )
   (drop
    (get_local $x)
   )
  )
 )
 (func $push-dropped (type $1) (result i32)
  (local $x i32)
  (block $out i32
   (drop
    (br_if $out
     (i32.const 2)
     (i32.const 3)
    )
   )
   (set_local $x
    (i32.const 1)
   )
   (drop
    (get_local $x)
   )
   (i32.const 4)
  )
 )
 (func $push-past-stuff (type $0)
  (local $x i32)
  (block $out
   (call $push-past-stuff)
   (drop
    (i32.const 1)
   )
   (br_if $out
    (i32.const 2)
   )
   (set_local $x
    (i32.const 1)
   )
   (drop
    (get_local $x)
   )
  )
 )
 (func $fail-then-push (type $0)
  (local $x i32)
  (local $y i32)
  (block $out
   (set_local $x
    (i32.const 1)
   )
   (drop
    (get_local $x)
   )
   (br_if $out
    (i32.const 2)
   )
   (br_if $out
    (i32.const 3)
   )
   (set_local $y
    (i32.const 1)
   )
   (drop
    (get_local $x)
   )
   (drop
    (get_local $y)
   )
  )
 )
 (func $used (type $0)
  (local $x i32)
  (block $out
   (set_local $x
    (i32.const 1)
   )
   (br_if $out
    (get_local $x)
   )
   (drop
    (get_local $x)
   )
  )
 )
 (func $not-sfa (type $0)
  (local $x i32)
  (set_local $x
   (i32.const 1)
  )
  (block $out
   (set_local $x
    (i32.const 1)
   )
   (br_if $out
    (i32.const 2)
   )
   (drop
    (get_local $x)
   )
  )
 )
 (func $not-sfa2 (type $0)
  (local $x i32)
  (drop
   (get_local $x)
  )
  (block $out
   (set_local $x
    (i32.const 1)
   )
   (br_if $out
    (i32.const 2)
   )
   (drop
    (get_local $x)
   )
  )
 )
 (func $used-out (type $0)
  (local $x i32)
  (block $out
   (set_local $x
    (i32.const 1)
   )
   (br_if $out
    (i32.const 2)
   )
   (drop
    (get_local $x)
   )
  )
  (drop
   (get_local $x)
  )
 )
 (func $value-might-interfere (type $0)
  (local $x i32)
  (block $out
   (br_if $out
    (i32.const 2)
   )
   (set_local $x
    (i32.load
     (i32.const 0)
    )
   )
   (drop
    (get_local $x)
   )
  )
 )
 (func $value-interferes (type $0)
  (local $x i32)
  (block $out
   (set_local $x
    (i32.load
     (i32.const 0)
    )
   )
   (i32.store
    (i32.const 1)
    (i32.const 3)
   )
   (br_if $out
    (i32.const 2)
   )
   (drop
    (get_local $x)
   )
  )
 )
 (func $value-interferes-accumulation (type $0)
  (local $x i32)
  (block $out
   (set_local $x
    (i32.load
     (i32.const 0)
    )
   )
   (nop)
   (i32.store
    (i32.const 1)
    (i32.const 3)
   )
   (nop)
   (br_if $out
    (i32.const 2)
   )
   (drop
    (get_local $x)
   )
  )
 )
 (func $value-interferes-in-pushpoint (type $0)
  (local $x i32)
  (block $out
   (set_local $x
    (i32.load
     (i32.const 0)
    )
   )
   (if
    (i32.const 1)
    (call $value-interferes)
   )
   (drop
    (get_local $x)
   )
  )
 )
 (func $values-might-interfere (type $0)
  (local $x i32)
  (local $y i32)
  (block $out
   (set_local $x
    (call $push-dropped)
   )
   (set_local $y
    (call $push-dropped)
   )
   (br_if $out
    (i32.const 2)
   )
   (drop
    (get_local $x)
   )
   (drop
    (get_local $y)
   )
  )
 )
 (func $unpushed-interferes (type $0)
  (local $x i32)
  (local $y i32)
  (block $out
   (set_local $x
    (call $push-dropped)
   )
   (set_local $y
    (call $push-dropped)
   )
   (br_if $out
    (i32.const 2)
   )
   (drop
    (get_local $x)
   )
   (drop
    (get_local $y)
   )
  )
  (drop
   (get_local $y)
  )
 )
 (func $unpushed-ignorable (type $0)
  (local $x i32)
  (local $y i32)
  (block $out
   (set_local $x
    (i32.const 1)
   )
   (br_if $out
    (i32.const 2)
   )
   (set_local $y
    (i32.const 3)
   )
   (drop
    (get_local $x)
   )
   (drop
    (get_local $y)
   )
  )
  (drop
   (get_local $x)
  )
 )
 (func $unpushed-ignorable-side-effect (type $0)
  (local $x i32)
  (local $y i32)
  (block $out
   (set_local $x
    (call $push-dropped)
   )
   (br_if $out
    (i32.const 2)
   )
   (set_local $y
    (i32.const 3)
   )
   (drop
    (get_local $x)
   )
   (drop
    (get_local $y)
   )
  )
 )
 (func $unpushed-side-effect-into-drop (type $0)
  (local $x i32)
  (block $out
   (set_local $x
    (call $push-dropped)
   )
   (br_if $out
    (i32.const 1)
   )
   (drop
    (get_local $x)
   )
  )
 )
 (func $unpushed-side-effect-into-if (type $0)
  (local $x i32)
  (block $out
   (set_local $x
    (call $push-dropped)
   )
   (br_if $out
    (i32.const 1)
   )
   (if
    (get_local $x)
    (nop)
   )
  )
 )
)