v8/test/mjsunit/regress/regress-347543.js

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// Copyright 2014 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 --debug-code
function f(a) {
a[5000000] = 256;
assertEquals(256, a[5000000]);
};
%PrepareFunctionForOptimization(f);
var v1 = new Array(5000001);
var v2 = new Array(10);
f(v1);
f(v2);
f(v2);
%OptimizeFunctionOnNextCall(f);
f(v2);
f(v1);