The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/jit-test/tests/ion/getprop-idempotent-cache-2.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,21 @@
     1.4 +function f(o) {
     1.5 +    var res = 0;
     1.6 +    for (var i=0; i<110; i++) {
     1.7 +        res += o.x;
     1.8 +    }
     1.9 +    return res;
    1.10 +}
    1.11 +
    1.12 +function O(x) {
    1.13 +    if ([].length == 0) // Thwart definite slot analysis.
    1.14 +        this.x = 10;
    1.15 +}
    1.16 +
    1.17 +var o = new O(true);
    1.18 +f(o);
    1.19 +
    1.20 +// Add a getter, this should invalidate the script containing the idempotent cache.
    1.21 +var res = 0;
    1.22 +o.__defineGetter__("x", function() { res++; });
    1.23 +f(o);
    1.24 +assertEq(res, 110);