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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
29
30// Test inlining and deoptimization of function.apply(this, arguments)
31// calls for which the exact number of arguments is known.
32(function () {
33  "use strict";
34  function test(argumentsCount) {
35    var dispatcher = {};
36    var deoptimize = { deopt:false };
37    dispatcher["const" + argumentsCount] = 0;
38    dispatcher.func = C;
39
40    function A(x,y) {
41      var r = "A";
42      if (argumentsCount == 1) r += B(10);
43      if (argumentsCount == 2) r += B(10, 11);
44      if (argumentsCount == 3) r += B(10, 11, 12);
45      assertSame(1, x);
46      assertSame(2, y);
47      return r;
48    }
49
50    function B(x,y) {
51      x = 0; y = 0;
52      var r = "B" + dispatcher.func.apply(this, arguments);
53      assertSame(argumentsCount, arguments.length);
54      for (var i = 0; i < arguments.length; i++) {
55        assertSame(10 + i, arguments[i]);
56      }
57      return r;
58    }
59
60    function C(x,y) {
61      x = 0; y = 0;
62      var r = "C"
63      deoptimize.deopt;
64      assertSame(argumentsCount, arguments.length);
65      for (var i = 0; i < arguments.length; i++) {
66        assertSame(10 + i, arguments[i]);
67      }
68      return r;
69    }
70
71    assertEquals("ABC", A(1,2));
72    assertEquals("ABC", A(1,2));
73    %OptimizeFunctionOnNextCall(A);
74    assertEquals("ABC", A(1,2));
75    delete deoptimize.deopt;
76    assertEquals("ABC", A(1,2));
77
78    %DeoptimizeFunction(A);
79    %ClearFunctionTypeFeedback(A);
80    %DeoptimizeFunction(B);
81    %ClearFunctionTypeFeedback(B);
82    %DeoptimizeFunction(C);
83    %ClearFunctionTypeFeedback(C);
84  }
85
86  for (var a = 1; a <= 3; a++) {
87    test(a);
88  }
89})();
90