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// |jit-test| --no-threads; skip-if: !('oomAtAllocation' in this)
// This test case check's Ion ability to recover from an allocation failure in
// the inlining of Array.prototype.push, when given multiple arguments. Note,
// that the following are not equivalent in case of failures:
//
// arr = [];
// arr.push(1,2,3); // OOM ---> arr == []
//
// arr = [];
// arr.push(1);
// arr.push(2); // OOM --> arr == [1]
// arr.push(3);
function canIoncompile() {
while (true) {
var i = inIon();
if (i)
return i;
}
}
if (canIoncompile() != true)
quit();
if ("gczeal" in this)
gczeal(0);
function pushLimits(limit, offset, arr, freeze) {
arr = arr || [];
arr.push(0,1,2,3,4,5,6,7,8,9);
arr.length = offset;
var l = arr.length;
var was = inIon();
oomAtAllocation(limit);
try {
for (var i = 0; i < 50; i++)
arr.push(0,1,2,3,4,5,6,7,8,9);
if (freeze)
arr.frozen();
for (var i = 0; i < 100; i++)
arr.push(0,1,2,3,4,5,6,7,8,9);
} catch (e) {
// Catch OOM.
}
resetOOMFailure();
assertEq(arr.length % 10, l);
// Check for a bailout.
var is = inIon();
return was ? is ? 1 : 2 : 0;
}
// We need this limit to be high enough to be able to OSR in the for-loop of
// pushLimits.
var limit = 1024 * 1024 * 1024;
while(true) {
var res = pushLimits(limit, 0);
if (res == 0) {
limit = 1024 * 1024 * 1024;
} else if (res == 1) { // Started and finished in Ion.
if (limit <= 1) // If we are not in the Jit.
break;
// We want to converge quickly to a state where the memory is limited
// enough to cause failures in array.prototype.push.
limit = (limit / 2) | 0;
} else if (res == 2) { // Started in Ion, and finished in Baseline.
if (limit < 10) {
// This is used to offset the OOM location, such that we can test
// each steps of the Array.push function, when it is jitted.
for (var off = 1; off < 10; off++) {
var arr = [];
try {
pushLimits(limit, off, arr, true);
} catch (e) {
// Cacth OOM produced while generating the error message.
}
if (arr.length > 10) assertEq(arr[arr.length - 1], 9);
else assertEq(arr[arr.length - 1], arr.length - 1);
}
}
if (limit == 1)
break;
limit--;
}
}
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