1// Copyright 2010 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 --check-elimination
29
30function A(x, y) {
31  this.x = x;
32  this.y = y;
33}
34
35function B(x, y) {
36  this.x = x;
37  this.y = y;
38}
39
40function F1(a, b) {
41  if (a == b) return a.x;
42  else return b.x;
43}
44
45function F2(a, b) {
46  if (a == b) return a.x;
47  else return b.x;
48}
49
50function F3(a, b) {
51  var f = a.y;
52  if (a == b) return a.x;
53  else return b.x;
54}
55
56function F4(a, b) {
57  var f = b.y;
58  if (a == b) return a.x;
59  else return b.x;
60}
61
62%NeverOptimizeFunction(test);
63
64function test(f, a, b) {
65  f(a, a);
66  f(a, b);
67  f(b, a);
68  f(b, c);
69  f(b, b);
70  f(c, c);
71
72  %OptimizeFunctionOnNextCall(f)
73
74  assertEquals(a.x, f(a, a));
75  assertEquals(b.x, f(b, b));
76}
77
78var a = new A(3, 5);
79var b = new B(2, 6);
80var c = new A(1, 7);
81
82test(F1, a, c);
83test(F2, a, b);
84test(F3, a, b);
85test(F4, a, b);
86