v8/test/mjsunit/compiler-regress-787301.js
Ross McIlroy 5b794a389b [Test] Add PrepareForOptimization to some mjsunit tests.
Bug: v8:8801, v8:8394
Change-Id: I6bb46ecafe1bd94adbf0409f13c9b2e558da0823
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1594558
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Auto-Submit: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61200}
2019-05-03 13:32:32 +00:00

28 lines
561 B
JavaScript

// 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
function opt(b) {
let iterator = new Set().values();
iterator.x = 0;
let arr = [iterator, iterator];
if (b)
return arr.slice();
}
%PrepareFunctionForOptimization(opt);
opt(false);
opt(false);
%OptimizeFunctionOnNextCall(opt);
let res = opt(true);
let a = res[0];
let b = res[1];
assertTrue(a === b);
a.x = 7;
assertEquals(7, b.x);