blob: b7cdd37f7e95cddf9e812f1aecc4223b7f09d414 [file] [log] [blame]
// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file
// Flags: --allow-natives-syntax
var b = false;
var obj = {f: 1, g: 2};
function setMutability() {
if (b) Object.freeze(obj);
}
%NeverOptimizeFunction(setMutability);
function setAndUseObject() {
setMutability(obj);
if (!Object.isFrozen(obj)) {
var t = obj.f;
obj.f = t * 2;
}
return obj.f;
}
%PrepareFunctionForOptimization(setAndUseObject);
assertEquals(setAndUseObject(), 2);
assertEquals(setAndUseObject(), 4);
%OptimizeFunctionOnNextCall(setAndUseObject);
b = true;
assertEquals(setAndUseObject(), 4);