v8/test/mjsunit/regress/regress-4788-1.js
Ross McIlroy d7a8170d2d [cleanup] Add missing %PrepareFunctionForOptimize in mjsunit tests
Bug: v8:8801,v8:8394,v8:9183
Change-Id: If482c6a14f389d54c6ca3891aa7b8475f7a1fce1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1660617
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Auto-Submit: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62192}
2019-06-14 17:03:41 +00:00

28 lines
517 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
var f = (function() {
"use asm";
function foo(x) {
return x == 0;
}
return foo;
})();
%PrepareFunctionForOptimization(f);
function deopt(f) {
return {
toString : function() {
%DeoptimizeFunction(f);
return "2";
}
};
}
%OptimizeFunctionOnNextCall(f);
assertFalse(f(deopt(f)));