haikuwebkit/LayoutTests/js/script-tests/dfg-int32-to-double-on-know...

21 lines
492 B
JavaScript

description(
"Tests that we don't emit unnecessary speculation checks when performing an int32 to double conversion on a value that is proved to be a number, predicted to be an int32, but not proved to be an int32."
);
function foo(a, b) {
var x = a.f;
var y;
function bar() {
return y;
}
var z = x + b;
y = x;
if (z > 1)
return y + b + bar();
else
return 72;
}
for (var i = 0; i < 200; ++i)
shouldBe("foo({f:5}, 42.5)", "52.5");