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// Regression test for GVN on field loads.
31
32function bar() {}
33
34// Make sure there is a transition on adding "bar" inobject property.
35var b = new bar();
36b.bar = "bar";
37
38function test(a) {
39  var b = new Array(10);
40  for (var i = 0; i < 10; i++) {
41    b[i] = new bar();
42  }
43
44  for (var i = 0; i < 10; i++) {
45    b[i].bar = a.foo;
46  }
47}
48
49// Create an object with fast backing store properties.
50var a = {};
51a.p1 = "";
52a.p2 = "";
53a.p3 = "";
54a.p4 = "";
55a.p5 = "";
56a.p6 = "";
57a.p7 = "";
58a.p8 = "";
59a.p9 = "";
60a.p10 = "";
61a.p11 = "";
62a.foo = "foo";
63for (var i = 0; i < 5; i++) {
64 test(a);
65}
66%OptimizeFunctionOnNextCall(test);
67test(a);
68
69test("");
70