// Regression test for #632 and #636: Heap-use-after-free in async threads
// Async threads must complete before the engine is destroyed.

var func = fun(){
  var ret = 0;
  for (var i = 0; i < 1000; ++i) {
    ret += i;
  }
  return ret;
}

var fut1 = async(func);
var fut2 = async(func);

// Wait for results to verify correctness
assert_equal(fut1.get(), 499500);
assert_equal(fut2.get(), 499500);