LayoutTests/js/script-tests/dfg-int-overflow-large-constants-in-a-line.js

description(
"Tests that our optimization to elide overflow checks understands that if we keep adding huge numbers, we could end up creating a number that is not precisely representable using doubles."
);

function foo(a) {
    var x = a;
    x += 281474976710655;
    x += 281474976710654;
    x += 281474976710653;
    x += 281474976710652;
    x += 281474976710655;
    x += 281474976710654;
    x += 281474976710653;
    x += 281474976710652;
    x += 281474976710655;
    x += 281474976710654;
    x += 281474976710653;
    x += 281474976710652;
    x += 281474976710655;
    x += 281474976710654;
    x += 281474976710653;
    x += 281474976710652;
    x += 281474976710655;
    x += 281474976710654;
    x += 281474976710653;
    x += 281474976710652;
    x += 281474976710655;
    x += 281474976710654;
    x += 281474976710653;
    x += 281474976710652;
    x += 281474976710655;
    x += 281474976710654;
    x += 281474976710653;
    x += 281474976710652;
    x += 281474976710655;
    x += 281474976710654;
    x += 281474976710653;
    x += 281474976710652;
    x += 281474976710655;
    x += 281474976710654;
    x += 281474976710653;
    x += 281474976710652;
    x += 281474976710655;
    x += 281474976710654;
    x += 281474976710653;
    x += 281474976710652;
    return x | 0
}

dfgShouldBe(foo, "foo(2147483647)", "2147483552");