JSTests/microbenchmarks/get-by-id-check-structure-elimination.js

(function() {
    var o = {a:1, b:2, c:3, d:4, e:5, f:6, g:7, h:8, i:9, j:10, k:11};
    var result = 0;
    for (var i = 0; i < 1000000; ++i)
        result += o.a ^ o.b | o.c ^ o.d & o.e ^ o.f | o.g ^ o.h & o.i ^ o.j | o.k;
    if (result != 15000000)
        throw "Error: bad result: " + result;
})();