1// Copyright 2014 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// Flags: --expose-debug-as debug --allow-natives-syntax
29
30Debug = debug.Debug;
31
32function dummy(x) {
33  return x + 100;
34}
35
36function create_closure() {
37  var f = function(arg) {
38    if (arg) { %DeoptimizeFunction(f); }
39    var a = Array(10);
40    for (var i = 0; i < a.length; i++) {
41      a[i] = i;
42    }
43  }
44  return f;
45}
46
47var c = create_closure();
48c();
49
50// c CallIC state now has custom Array handler installed.
51
52// Turn on the debugger.
53Debug.setListener(function () {});
54
55var d = create_closure();
56%OptimizeFunctionOnNextCall(d);
57// Thanks to the debugger, we recreate the full code too. We deopt and run
58// it, stomping on the unexpected AllocationSite in the type vector slot.
59d(true);
60
61// CallIC in c misinterprets type vector slot contents as an AllocationSite,
62// corrupting the heap.
63c();
64
65// CallIC MISS - crash due to corruption.
66dummy();
67