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/basic/shapelessCalleeTest.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,67 @@
     1.4 +// The following functions use a delay line of length 2 to change the value
     1.5 +// of the callee without exiting the traced loop. This is obviously tuned to
     1.6 +// match the current 8 setting of 2.
     1.7 +function shapelessArgCalleeLoop(f, g, h, a)
     1.8 +{
     1.9 +  for (var i = 0; i < 10; i++) {
    1.10 +    f(i, a);
    1.11 +    f = g;
    1.12 +    g = h;
    1.13 +  }
    1.14 +}
    1.15 +
    1.16 +function shapelessVarCalleeLoop(f0, g, h, a)
    1.17 +{
    1.18 +  var f = f0;
    1.19 +  for (var i = 0; i < 10; i++) {
    1.20 +    f(i, a);
    1.21 +    f = g;
    1.22 +    g = h;
    1.23 +  }
    1.24 +}
    1.25 +
    1.26 +function shapelessLetCalleeLoop(f0, g, h, a)
    1.27 +{
    1.28 +  for (var i = 0; i < 10; i++) {
    1.29 +    let f = f0;
    1.30 +    f(i, a);
    1.31 +    f = g;
    1.32 +    g = h;
    1.33 +  }
    1.34 +}
    1.35 +
    1.36 +function shapelessUnknownCalleeLoop(n, f, g, h, a)
    1.37 +{
    1.38 +  for (var i = 0; i < 10; i++) {
    1.39 +    (n || f)(i, a);
    1.40 +    f = g;
    1.41 +    g = h;
    1.42 +  }
    1.43 +}
    1.44 +
    1.45 +function shapelessCalleeTest()
    1.46 +{
    1.47 +  var a = [];
    1.48 +
    1.49 +  var helper = function (i, a) a[i] = i;
    1.50 +  shapelessArgCalleeLoop(helper, helper, function (i, a) a[i] = -i, a);
    1.51 +
    1.52 +  helper = function (i, a) a[10 + i] = i;
    1.53 +  shapelessVarCalleeLoop(helper, helper, function (i, a) a[10 + i] = -i, a);
    1.54 +
    1.55 +  helper = function (i, a) a[20 + i] = i;
    1.56 +  shapelessLetCalleeLoop(helper, helper, function (i, a) a[20 + i] = -i, a);
    1.57 +
    1.58 +  helper = function (i, a) a[30 + i] = i;
    1.59 +  shapelessUnknownCalleeLoop(null, helper, helper, function (i, a) a[30 + i] = -i, a);
    1.60 +
    1.61 +  try {
    1.62 +    helper = {hack: 42};
    1.63 +    shapelessUnknownCalleeLoop(null, helper, helper, helper, a);
    1.64 +  } catch (e) {
    1.65 +    if (e + "" != "TypeError: f is not a function")
    1.66 +      print("shapelessUnknownCalleeLoop: unexpected exception " + e);
    1.67 +  }
    1.68 +  return a.join("");
    1.69 +}
    1.70 +assertEq(shapelessCalleeTest(), "01-2-3-4-5-6-7-8-901-2-3-4-5-6-7-8-9012345678901-2-3-4-5-6-7-8-9");