regress-7510.js 478 Bytes
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// Copyright 2018 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 --opt

function foo(a) {
  for (const x of a) {
    a[100] = 1;
  }
}

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%PrepareFunctionForOptimization(foo);
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foo([1]);
foo([1]);
%OptimizeFunctionOnNextCall(foo);
foo([1]);
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%PrepareFunctionForOptimization(foo);
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%OptimizeFunctionOnNextCall(foo);
foo([1]);
assertOptimized(foo);