v8/test/mjsunit/compiler/escape-analysis-materialize.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

32 lines
770 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 --turbo-escape
(function TestMaterializeArray() {
function f() {
var a = [1,2,3];
%_DeoptimizeNow();
return a.length;
}
%PrepareFunctionForOptimization(f);
assertEquals(3, f());
assertEquals(3, f());
%OptimizeFunctionOnNextCall(f);
assertEquals(3, f());
})();
(function TestMaterializeFunction() {
function g() {
function fun(a, b) {}
%_DeoptimizeNow();
return fun.length;
}
%PrepareFunctionForOptimization(g);
assertEquals(2, g());
assertEquals(2, g());
%OptimizeFunctionOnNextCall(g);
assertEquals(2, g());
})();