forked from LeenkxTeam/Kmake
26 lines
933 B
JavaScript
26 lines
933 B
JavaScript
|
// Copyright 2024 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 --turbolev --turbofan
|
||
|
|
// Flags: --no-always-turbofan
|
||
|
|
|
||
|
|
function check_undetectable(x) {
|
||
|
|
let r = x == null;
|
||
|
|
if (x == null) return 17;
|
||
|
|
return r;
|
||
|
|
};
|
||
|
|
|
||
|
|
%PrepareFunctionForOptimization(check_undetectable);
|
||
|
|
assertEquals(false, check_undetectable(42));
|
||
|
|
%OptimizeFunctionOnNextCall(check_undetectable);
|
||
|
|
assertEquals(false, check_undetectable(42));
|
||
|
|
assertOptimized(check_undetectable);
|
||
|
|
var undetectable = %GetUndetectable();
|
||
|
|
// Should deoptimize because of invalidated NoUndetectableObjects protector.
|
||
|
|
assertUnoptimized(check_undetectable);
|
||
|
|
assertEquals(17, check_undetectable(undetectable));
|
||
|
|
%OptimizeFunctionOnNextCall(check_undetectable);
|
||
|
|
assertEquals(17, check_undetectable(%GetUndetectable()));
|
||
|
|
assertOptimized(check_undetectable);
|