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|
(module
(global $g (mut externref) (ref.null extern))
;; This function will have a stack map, notably one that's a bit
;; different than the one below.
(func $has_a_stack_map
(local externref)
global.get $g
local.tee 0
global.set $g
local.get 0
global.set $g
ref.null extern
global.set $g
)
;; This function also has a stack map, but it's only applicable after
;; the call to the `$gc` import, so when we gc during that we shouldn't
;; accidentally read the previous function's stack maps and use that
;; for our own.
(func (export "run") (result i32)
call $gc
ref.null extern
global.set $g
i32.const 0
)
(func (export "init") (param externref)
local.get 0
global.set $g
)
;; A small function which when run triggers a gc in wasmtime
(func $gc
(local $i i32)
i32.const 10000
local.set $i
(loop $continue
(global.set $g (global.get $g))
(local.tee $i (i32.sub (local.get $i) (i32.const 1)))
br_if $continue
)
)
)
(invoke "init" (ref.extern 1))
(assert_return (invoke "run") (i32.const 0))
|
