test/mjsunit/regress/regress-crbug-134609.js

// Copyright 2012 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
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//
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// Flags: --allow-natives-syntax --inline-accessors

var forceDeopt = {x:0};

var objectWithGetterProperty = (function (value) {
  var obj = {};
  Object.defineProperty(obj, "getterProperty", {
    get: function foo() {
      forceDeopt.x;
      return value;
    },
  });
  return obj;
})("bad");

function test() {
  var iAmContextAllocated = "good";
  objectWithGetterProperty.getterProperty;
  return iAmContextAllocated;

  // Make sure that the local variable is context allocated.
  function unused() { iAmContextAllocated; }
}

assertEquals("good", test());
assertEquals("good", test());
%OptimizeFunctionOnNextCall(test);
assertEquals("good", test());

// At this point, foo should have been inlined into test. Let's deopt...
delete forceDeopt.x;
assertEquals("good", test());