function foo(o) { var tmp = o.f; return 42; } noInline(foo); var array = [{f:1}, {g:1, f:2}]; for (var i = 0; i < 10000; ++i) { var result = foo(array[i % array.length]); if (result != 42) throw "Error: bad result in loop: " + result; } var o = {}; var didCallGetter = false; o.__defineGetter__("f", function() { didCallGetter = true; return 73; }); var result = foo(o); if (result != 42) throw "Error: bad result at end: " + result; if (!didCallGetter) throw "Error: did not call getter at end.";