v8/test/mjsunit/regress/regress-crbug-658691.js
Adam Klein 1769f892ce [cleanup] Remove always-off support for tail calls
The tail call implementation is hidden behind the --harmony-tailcalls
flag, which is off-by-default (and has been unstaged since February).
It is known to be broken in a variety of cases, including clusterfuzz
security issues (see sample Chromium issues below). To avoid letting
the implementation bitrot further on trunk, this patch removes it.

Bug: v8:4698, chromium:636914, chromium:724746
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng;master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: I9cb547101456a582374fdf7b1a3f044a9ef33e5c
Reviewed-on: https://chromium-review.googlesource.com/569069
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46651}
2017-07-13 19:29:05 +00:00

25 lines
750 B
JavaScript

// Copyright 2016 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-stress-fullcodegen
// The {f} function is compiled using TurboFan.
// 1) The call to {Reflect.set} has no arguments adaptation.
// 2) The call to {Reflect.set} is in tail position.
function f(a, b, c) {
"use strict";
return Reflect.set({});
}
// The {g} function is compiled using Ignition.
// 1) The call to {f} requires arguments adaptation.
// 2) The call to {f} is not in tail position.
function g() {
return f() + "-no-tail";
}
assertEquals("true-no-tail", g());
%OptimizeFunctionOnNextCall(f);
assertEquals("true-no-tail", g());