1// Copyright 2013 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: --allow-natives-syntax
29
30function f1(a, i) {
31  return a[i]
32}
33
34var a1 = [,,,,,,,,,,,,,,,,,,0.5];
35assertEquals(undefined, f1(a1, 1));
36assertEquals(undefined, f1(a1, 1));
37%OptimizeFunctionOnNextCall(f1);
38assertEquals(undefined, f1(a1, 1));
39assertEquals(undefined, f1(a1, 1));
40
41function f2(a, i) {
42  return a[i] + 0.5;
43}
44var a2_b = [0.0,,];
45assertEquals(0.5, f2(a2_b, 0));
46assertEquals(0.5, f2(a2_b, 0));
47%OptimizeFunctionOnNextCall(f2);
48assertEquals(0.5, f2(a2_b, 0));
49assertEquals(NaN, f2(a2_b, 1));
50a2_b.__proto__ = [1.5,1.5,1.5];
51assertEquals(2, f2(a2_b, 1));
52assertEquals(0.5, f2(a2_b, 0));
53