JSTests/wasm/stress/save-tag-callee-saves-in-js-entrypoint-ic.js

/*
(module
 (type $none_=>_i32 (func (result i32)))
 (export "test" (func $0))
 (func $0 (result i32)
  (i32.const 1234)
 )
)
*/

const wasm = new Uint8Array([
    0x00,0x61,0x73,0x6d,0x01,0x00,0x00,0x00,0x01,0x05,0x01,0x60,0x00,0x01,0x7f,0x03,
    0x02,0x01,0x00,0x07,0x08,0x01,0x04,0x74,0x65,0x73,0x74,0x00,0x00,0x0a,0x07,0x01,
    0x05,0x00,0x41,0xd2,0x09,0x0b
])

// We should not crash.

WebAssembly.instantiate(wasm).then(e => {
    const mod = e.instance.exports

    class Test {
        get breakIt() {
            return mod.test()
        }
    }

    const obj = new Test()

    for (let i = 1; i < 24; i++) {
        const iterCount = 1 << i
        for (let j = 0; j < iterCount; j++) {
            obj.breakIt
        }
    }
});