Status: Accepted
Owner: ----
CC: [email protected], [email protected]
Labels: Type-Bug Priority-Medium
New issue 3167 by [email protected]: Keyed loads shouldn't deopt on
non-number keys that they've seen before
http://code.google.com/p/v8/issues/detail?id=3167
The following code deopts even though type feedback is complete and stable,
because monomorphic keyed loads assume that the index is a number.
var o = {
"foo": "bar",
}
function get(obj, key) {
return obj[key];
}
get(o, "foo");
get(o, "foo");
get(o, "foo");
%OptimizeFunctionOnNextCall(get);
get(o, "foo"); // Deopts.
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