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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 --expose-gc
29// Flags: --concurrent-recompilation --block-concurrent-recompilation
30
31if (!%IsConcurrentRecompilationSupported()) {
32  print("Concurrent recompilation is disabled. Skipping this test.");
33  quit();
34}
35
36function f(x) {
37  var xx = x * x;
38  var xxstr = xx.toString();
39  return xxstr.length;
40}
41
42function g(x) {
43  var xxx = Math.sqrt(x) | 0;
44  var xxxstr = xxx.toString();
45  return xxxstr.length;
46}
47
48function k(x) {
49  return x * x;
50}
51
52f(g(1));
53assertUnoptimized(f);
54assertUnoptimized(g);
55
56%OptimizeFunctionOnNextCall(f, "concurrent");
57%OptimizeFunctionOnNextCall(g, "concurrent");
58f(g(2));  // Kick off recompilation.
59
60assertUnoptimized(f, "no sync");  // Not yet optimized since recompilation
61assertUnoptimized(g, "no sync");  // is still blocked.
62
63// Let concurrent recompilation proceed.
64%UnblockConcurrentRecompilation();
65
66assertOptimized(f, "sync");  // Optimized once we sync with the
67assertOptimized(g, "sync");  // background thread.
68