text: // Copyright 2012 the V8 project authors. All rights reserved.
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are
  // met:
  //
  //     * Redistributions of source code must retain the above copyright
  //       notice, this list of conditions and the following disclaimer.
  //     * Redistributions in binary form must reproduce the above
  //       copyright notice, this list of conditions and the following
  //       disclaimer in the documentation and/or other materials provided
  //       with the distribution.
  //     * Neither the name of Google Inc. nor the names of its
  //       contributors may be used to endorse or promote products derived
  //       from this software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  // Flags: --allow-natives-syntax
  
  // Test materialization of the arguments object when deoptimizing a
  // strict mode closure after modifying an argument.
  
  (function () {
    var forceDeopt = 0;
    function inner(x) {
      "use strict";
      x = 2;
      // Do not remove this %DebugPrint as it makes sure the deopt happens
      // after the assignment and is not hoisted above the assignment.
      %DebugPrint(arguments[0]);
      forceDeopt + 1;
      return arguments[0];
    };
    %PrepareFunctionForOptimization(inner);
    assertEquals(1, inner(1));
    assertEquals(1, inner(1));
    %OptimizeFunctionOnNextCall(inner);
    assertEquals(1, inner(1));
    forceDeopt = "not a number";
    assertEquals(1, inner(1));
  })();
  
  
  // Test materialization of the arguments object when deoptimizing an
  // inlined strict mode closure after modifying an argument.
  
  (function () {
    var forceDeopt = 0;
    function inner(x) {
      "use strict";
      x = 2;
      // Do not remove this %DebugPrint as it makes sure the deopt happens
      // after the assignment and is not hoisted above the assignment.
      %DebugPrint(arguments[0]);
      forceDeopt + 1;
      return arguments[0];
    }
  
    function outer(x) {
      return inner(x);
    };
    %PrepareFunctionForOptimization(outer);
    assertEquals(1, outer(1));
    assertEquals(1, outer(1));
    %OptimizeFunctionOnNextCall(outer);
    assertEquals(1, outer(1));
    forceDeopt = "not a number";
    assertEquals(1, outer(1));
  })();
  
  
  // Test materialization of the multiple arguments objects when
  // deoptimizing several inlined closure after modifying an argument.
  
  (function () {
    var forceDeopt = 0;
    function inner(x, y, z) {
      "use strict";
      x = 3;
      // Do not remove this %DebugPrint as it makes sure the deopt happens
      // after the assignment and is not hoisted above the assignment.
      %DebugPrint(arguments[0]);
      forceDeopt + 1;
      return arguments[0];
    }
  
    function middle(x) {
      "use strict";
      x = 2;
      return inner(10 * x, 20 * x, 30 * x) + arguments[0];
    }
  
    function outer(x) {
      return middle(x);
    };
    %PrepareFunctionForOptimization(outer);
    assertEquals(21, outer(1));
    assertEquals(21, outer(1));
    %OptimizeFunctionOnNextCall(outer);
    assertEquals(21, outer(1));
    forceDeopt = "not a number";
    assertEquals(21, outer(1));
  })();
  