v8/test/mjsunit/compiler/optimized-uint32array-length.js
Ross McIlroy 31a3cfbc10 [Test] Add PrepareForOptimization to mjsunit/compiler
BUG=v8:8801

Change-Id: I9d9d9824c6c9ad0176bbfd3723da1b578b17c256
Reviewed-on: https://chromium-review.googlesource.com/c/1495555
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60001}
2019-03-04 12:25:41 +00:00

15 lines
442 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 --opt
var a = new Uint32Array(1);
function len(a) { return a.length; }
%PrepareFunctionForOptimization(len);
assertEquals(1, len(a));
assertEquals(1, len(a));
%OptimizeFunctionOnNextCall(len);
assertEquals(1, len(a));
assertOptimized(len);