src/third_party/mozjs-45/js/src/jit-test/tests/basic/test586387.js

function testFloatArray() {
  var v = new Float32Array(32);

  for (var i = 0; i < v.length; ++i)
    v[i] = i;

  var t = 0;
  for (var i = 0; i < v.length; ++i)
    t += v[i];

  return t;
}

assertEq(testFloatArray(), 496);