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 --nodead-code-elimination
29// Flags: --nofold-constants --nouse-gvn
30
31// Create a function to get a long series of removable simulates.
32// f() {
33//   var _0 = <random>, _1 = <random>, ... _1000 = <random>,
34//   _1001 = <random var> + <random var>,
35//   _1002 = <random var> + <random var>,
36//   ...
37//   _99999 = <random var> + <random var>,
38//   x = 1;
39//   return _0;
40// }
41
42var seed = 1;
43
44function rand() {
45  seed = seed * 171 % 1337 + 17;
46  return (seed % 1000) / 1000;
47}
48
49function randi(max) {
50  seed = seed * 131 % 1773 + 13;
51  return seed % max;
52}
53
54function varname(i) {
55  return "_" + i;
56}
57
58var source = "var ";
59
60for (var i = 0; i < 750; i++) {
61  source += [varname(i), "=", rand(), ","].join("");
62}
63
64for (var i = 750; i < 3000; i++) {
65  source += [varname(i), "=",
66             varname(randi(i)), "+",
67             varname(randi(i)), ","].join("");
68}
69
70source += "x=1; return _0;"
71var f = new Function(source);
72
73f();
74%OptimizeFunctionOnNextCall(f);
75f();
76