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;;! reference_types = true
(module
(table $t 1 externref)
(func (export "init") (param externref)
(table.set $t (i32.const 0) (local.get 0))
)
(func (export "get-many-externrefs") (param $i i32)
(loop $continue
;; Exit when our loop counter `$i` reaches zero.
(if (i32.eqz (local.get $i))
(then (return))
)
;; Get an `externref` out of the table. This could cause the
;; `VMExternRefActivationsTable`'s bump region to reach full capacity,
;; which triggers a GC.
;;
;; Set the table element back into the table, just so that the element is
;; still considered live at the time of the `table.get`, it ends up in the
;; stack map, and we poke more of our GC bits.
(table.set $t (i32.const 0) (table.get $t (i32.const 0)))
;; Decrement our loop counter `$i`.
(local.set $i (i32.sub (local.get $i) (i32.const 1)))
;; Continue to the next loop iteration.
(br $continue)
)
unreachable
)
)
(invoke "init" (ref.extern 1))
(invoke "get-many-externrefs" (i32.const 8192))
|
