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|
var o;
var f1;
var counter = 0;
function f2(a) {
bailout();
return f2.arguments;
};
var restartCode = "counter = 0; " + f2.toSource();
// We need to reevaluate this function everytime, otherwise it is flagged as
// having an argument object and it would not be re-entered.
// This test case is checking that f.arguments reflects the overflow or the
// underflow of arguments after a bailout. Due to the way bailouts are
// recovered we need to check for the intial frame and for any other JS frame
// below.
//
// To produce a JSFrame, we need to avoid the 'Hot' counters of f1 to be the
// same as f2, because IonMonkey will try to inline f2 in f1, and not
// compiling/calling f2 separately. This explain why we ignore the 5 first call
// of f1 by returning immediately.
//
// Bailouts are caused by calling an object function, which is expected to be a
// function by IonMonkey. So bailout() cause a bailout in the currently
// compiled function.
//
// To avoid any preventive effect to re-enter f2, we re-evaluate it before every
// test.
// Check bailouts of the initial frame.
eval(restartCode);
while (counter++ < 50) {
o = f2();
assertEq(o.length, 0);
}
eval(restartCode);
while (counter++ < 50) {
o = f2(21);
assertEq(o.length, 1);
assertEq(o[0], 21);
}
eval(restartCode);
while (counter++ < 50) {
o = f2(21,42);
assertEq(o.length, 2);
assertEq(o[0], 21);
assertEq(o[1], 42);
}
// 100 arguments.
eval(restartCode);
while (counter++ < 50) {
o = f2(0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9);
assertEq(o.length, 100);
for (var i in o)
assertEq(o[i], i % 10);
}
// 200 arguments.
eval(restartCode);
while (counter++ < 50) {
o = f2(0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9);
assertEq(o.length, 200);
for (var i in o)
assertEq(o[i], i % 10);
}
// 300 arguments.
eval(restartCode);
while (counter++ < 50) {
o = f2(0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9);
assertEq(o.length, 300);
for (var i in o)
assertEq(o[i], i % 10);
}
// Check bailouts of one frame which is not the initial frame.
eval(restartCode);
f1 = function() {
if (counter < 5) return 0;
return f2();
};
while (counter++ < 50) {
o = f1();
if (counter < 5) continue;
assertEq(o.length, 0);
}
eval(restartCode);
f1 = function() {
if (counter < 5) return 0;
return f2(21);
};
while (counter++ < 50) {
o = f1();
if (counter < 5) continue;
assertEq(o.length, 1);
assertEq(o[0], 21);
}
eval(restartCode);
f1 = function() {
if (counter < 5) return 0;
return f2(21,42);
};
while (counter++ < 50) {
o = f1();
if (counter < 5) continue;
assertEq(o.length, 2);
assertEq(o[0], 21);
assertEq(o[1], 42);
}
// 100 arguments.
eval(restartCode);
f1 = function() {
if (counter < 5) return 0;
return f2(0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9);
};
while (counter++ < 50) {
o = f1();
if (counter < 5) continue;
assertEq(o.length, 100);
for (var i in o)
assertEq(o[i], i % 10);
}
// 200 arguments.
eval(restartCode);
f1 = function() {
if (counter < 5) return 0;
return f2(0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9);
};
while (counter++ < 50) {
o = f1();
if (counter < 5) continue;
assertEq(o.length, 200);
for (var i in o)
assertEq(o[i], i % 10);
}
// 300 arguments.
eval(restartCode);
f1 = function() {
if (counter < 5) return 0;
return f2(0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9);
};
while (counter++ < 500) {
o = f1();
if (counter < 5) continue;
assertEq(o.length, 300);
for (var i in o)
assertEq(o[i], i % 10);
}
|
