src/third_party/v8/test/mjsunit/compiler/escape-analysis-5.js

// Copyright 2015 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
// met:
//
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// Flags: --allow-natives-syntax --turbo-escape

function f(h) {
  "use strict";
  h(arguments);
  return arguments.length;
}

function g(h) {
  return f(h,1,2,3);
}

function h(x) {
  assertEquals("[object Arguments]", ""+x)
}

%PrepareFunctionForOptimization(g);
assertEquals(4, g(h));
assertEquals(4, g(h));
%OptimizeFunctionOnNextCall(g);
assertEquals(4, g(h));