// Copyright 2024 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Flags: --allow-natives-syntax

d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
let builder = new WasmModuleBuilder();
let struct_type = builder.addStruct([makeField(kWasmI32, true)]);
builder.addFunction('MakeStruct', makeSig([], [kWasmExternRef])).exportFunc().addBody([kExprI32Const, 42, kGCPrefix, kExprStructNew, struct_type, kGCPrefix, kExprExternConvertAny]);
let instance = builder.instantiate();
globalThis.struct = instance.exports.MakeStruct();
function foo(arg) {
  arg.prototype = globalThis.struct;
  for (var i = 0; i < 5000; i++) {
    new arg() instanceof arg;
  }
}
foo(function () {});