node/deps/v8/test/mjsunit/compiler/deopt-lazy-shape-mutation.js
Ujjwal Sharma f579e11940 deps: update V8 to 7.4.288.13
PR-URL: https://github.com/nodejs/node/pull/26685
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
2019-03-28 16:36:18 -04:00

25 lines
464 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 b = false;
function change_o() {
if (b) o = { y : 1, x : 0};
}
%NeverOptimizeFunction(change_o);
var o = { x : 1 };
function f() {
change_o();
return o.x;
}
%PrepareFunctionForOptimization(f);
f(); f();
%OptimizeFunctionOnNextCall(f);
b = true;
f();