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Kmake/deps/v8/test/mjsunit/maglev/unstable-map-transition.js
2026-05-26 23:36:42 -07:00

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JavaScript

// Copyright 2022 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 --maglev
(function() {
function foo(x) {
x.a = 1;
x.a;
}
%PrepareFunctionForOptimization(foo);
foo({});
%OptimizeMaglevOnNextCall(foo);
foo({});
assertTrue(isMaglevved(foo));
})();