v8/test/mjsunit/compiler/regress-992684.js
Georg Neis 6b7146df6c [turbofan] Teach serializer about new JumpIfUndefinedOrNull bytecodes
R=mvstanton@chromium.org

Bug: chromium:992684, v8:7790
Change-Id: Ia5e77873f4b96d9f6d9a1468a83a64206f1498ee
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1748692
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63180}
2019-08-13 07:36:49 +00:00

27 lines
569 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-lazy-feedback-allocation
function* g(h) {
return yield* h;
}
var f = Object.getPrototypeOf(function*(){}).prototype;
var t = f.throw;
const h = (function*(){})();
h.next = function () { return { }; };
const x = g(h);
x.next();
delete f.throw;
try {
t.bind(x)();
} catch (e) {}
%PrepareFunctionForOptimization(g);
g();
%OptimizeFunctionOnNextCall(g);
g();