wasm-micro-runtime/tests/unit/gc/wasm-apps/test6.wast

(module
  (type $st (sub (struct)))
  (type $st' (sub (struct (field i32))))
  (type $at (array i8))
  (type $st-sub1 (sub $st (struct)))
  (type $st-sub2 (sub $st (struct)))
  (type $st'-sub1 (sub $st' (struct (field i32))))
  (type $st'-sub2 (sub $st' (struct (field i32))))

  (table 20 (ref null eq))

  (func (export "init")
    (table.set (i32.const 0) (ref.null eq))
    (table.set (i32.const 1) (ref.null i31))
    (table.set (i32.const 2) (i31.new (i32.const 7)))
    (table.set (i32.const 3) (i31.new (i32.const 7)))
    (table.set (i32.const 4) (i31.new (i32.const 8)))
    (table.set (i32.const 5) (struct.new_canon_default $st))
    (table.set (i32.const 6) (struct.new_canon_default $st))
    (table.set (i32.const 7) (array.new_canon_default $at (i32.const 0)))
    (table.set (i32.const 8) (array.new_canon_default $at (i32.const 0)))
  )

  (func (export "eq") (param $i i32) (param $j i32) (result i32)
    (ref.eq (table.get (local.get $i)) (table.get (local.get $j)))
  )
)