918fe04351
PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
27 lines
525 B
JavaScript
27 lines
525 B
JavaScript
// Copyright 2019 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 --no-always-turbofan --turbofan
|
|
|
|
const r = RegExp('bla');
|
|
|
|
function foo() {
|
|
r.test('string');
|
|
}
|
|
|
|
%PrepareFunctionForOptimization(foo);
|
|
foo();
|
|
foo();
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
foo();
|
|
assertOptimized(foo);
|
|
|
|
r.__proto__.exec = function() {
|
|
return null;
|
|
}
|
|
Object.freeze(r.__proto__);
|
|
|
|
assertUnoptimized(foo);
|
|
foo();
|