1// Copyright 2011 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
30// This is a regression test for overlapping key and value registers.
31
32var types = [Array, Int8Array, Uint8Array, Int16Array, Uint16Array,
33             Int32Array, Uint32Array, Uint8ClampedArray, Float32Array,
34             Float64Array];
35
36var results1 = [-2, -2, 254, -2, 65534, -2, 4294967294, 0, -2, -2];
37var results2 = [undefined, -1, 255, -1, 65535, -1, 4294967295, 0, -1, -1];
38var results3 = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
39var results4 = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1];
40
41const kElementCount = 40;
42
43function do_slice(a) {
44  return Array.prototype.slice.call(a, 4, 8);
45}
46
47for (var t = 0; t < types.length; t++) {
48  var type = types[t];
49  var a = new type(kElementCount);
50  for (var i = 0; i < kElementCount; ++i ) {
51    a[i] = i-6;
52  }
53  delete a[5];
54  var sliced = do_slice(a);
55
56  %ClearFunctionTypeFeedback(do_slice);
57  assertEquals(results1[t], sliced[0]);
58  assertEquals(results2[t], sliced[1]);
59  assertEquals(results3[t], sliced[2]);
60  assertEquals(results4[t], sliced[3]);
61}
62