1// Copyright 2015 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Flags: --allow-natives-syntax --noalways-opt
6
7// We disable vector store ICs because slot indices change when this option
8// is enabled.
9
10// Locations in the type feedback vector where call counts are maintained for
11// the two calls made from bar();
12
13(function() {
14  const kFooCallExtraIndex = 5;
15  const kArrayCallExtraIndex = 7;
16
17  function GetCallCount(func, slot) {
18    var vector = %GetTypeFeedbackVector(func);
19    // Call counts are recorded doubled.
20    var value = %FixedArrayGet(vector, slot);
21    return Math.floor(value / 2);
22  }
23
24  function foo(a) { return a[3] * 16; }
25
26  function bar(a) {
27    var result = 0;
28    for (var i = 0; i < 10; i++) {
29      result = foo(a);
30      if (i % 2 === 0) {
31        var r = Array();
32        r[0] = 1;
33        result += r[0];
34      }
35    }
36    return result;
37  }
38
39  var a = [1, 2, 3];
40  bar(a);
41  assertEquals(10, GetCallCount(bar, kFooCallExtraIndex));
42  assertEquals(5, GetCallCount(bar, kArrayCallExtraIndex));
43
44  %OptimizeFunctionOnNextCall(bar);
45  bar(a);
46})();
47