1// Copyright 2012 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// Test CompareIC stubs for normal and strict equality comparison of known
31// objects in slow mode. These objects share the same map even though they
32// might have completely different properties.
33
34function eq(a, b) {
35  return a == b;
36}
37
38function eq_strict(a, b) {
39  return a === b;
40}
41
42function test(a, b) {
43  // Check CompareIC for equality of known objects.
44  assertTrue(eq(a, a));
45  assertTrue(eq(b, b));
46  assertFalse(eq(a, b));
47  // Check CompareIC for strict equality of known objects.
48  assertTrue(eq_strict(a, a));
49  assertTrue(eq_strict(b, b));
50  assertFalse(eq_strict(a, b));
51}
52
53// Prepare two objects in slow mode that have the same map.
54var obj1 = %OptimizeObjectForAddingMultipleProperties({}, 1);
55var obj2 = %OptimizeObjectForAddingMultipleProperties({}, 1);
56
57// Test original objects.
58assertTrue(%HaveSameMap(obj1, obj2));
59test(obj1, obj2);
60
61// Test after adding property to first object.
62obj1.x = 1;
63assertTrue(%HaveSameMap(obj1, obj2));
64test(obj1, obj2);
65
66// Test after adding property to second object.
67obj2.y = 2;
68assertTrue(%HaveSameMap(obj1, obj2));
69test(obj1, obj2);
70