function foo(a, b) { return a & b; } noInline(foo); var things = [{valueOf: function() { return 6; }}]; var results = [2]; for (var i = 0; i < 100000; ++i) { var result = foo(things[i % things.length], 10); var expected = results[i % results.length]; if (result != expected) throw "Error: bad result for i = " + i + ": " + result; }