v8/test/mjsunit/compiler/deopt-eager-var-mutation-ite.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

30 lines
556 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
var foo = { x : 0, y : 1 }
function f(b) {
h(b);
return foo.x;
}
function h(b) {
g(b);
return foo.x;
}
function g(b) {
if (b) {
foo = { x : 536 };
} // It should trigger an eager deoptimization when b=true.
}
%PrepareFunctionForOptimization(f);
f(false); f(false);
%OptimizeFunctionOnNextCall(f);
f(false);
assertEquals(f(true), 536);