1// Copyright 2013 the V8 project authors. All rights reserved.
2// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions
6// are met:
7// 1.  Redistributions of source code must retain the above copyright
8//     notice, this list of conditions and the following disclaimer.
9// 2.  Redistributions in binary form must reproduce the above copyright
10//     notice, this list of conditions and the following disclaimer in the
11//     documentation and/or other materials provided with the distribution.
12//
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14// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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18// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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22// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23
24description(
25"This tests that the static analysis we use to infer if a variable should be a double doesn't crash."
26);
27
28var grandResult = 0;
29
30for (var i = 0; i < 256; ++i) {
31    code  = "function foo(o, a, b) {\n";
32    code += "    var x = 0;\n";
33    code += "    var c = a + b;\n";
34    for (var j = 0; j < 8; ++j)
35        code += "    var " + String.fromCharCode("d".charCodeAt(0) + j) + " = " + ((i & (1 << ((j / 2) | 0))) ? "0.5" : "0") + ";\n";
36    code += "    for (var __i = 0; __i < 10; ++__i) {\n";
37    code += "        if (a + b + 1 > __i) {\n";
38    code += "            c = d;\n";
39    code += "            x += c;\n";
40    code += "        }\n";
41    code += "        if (a + b + 2 > __i) {\n";
42    code += "            c = e;\n";
43    code += "            x += c;\n";
44    code += "        }\n";
45    code += "        if (a + b + 3 > __i) {\n";
46    code += "            c = f;\n";
47    code += "            x += c;\n";
48    code += "        }\n";
49    code += "        if (a + b + 4 > __i) {\n";
50    code += "            c = g;\n";
51    code += "            x += c;\n";
52    code += "        }\n";
53    code += "        if (a + b + 5 > __i) {\n";
54    code += "            c = h;\n";
55    code += "            x += c;\n";
56    code += "        }\n";
57    code += "        if (a + b + 6 > __i) {\n";
58    code += "            c = i;\n";
59    code += "            x += c;\n";
60    code += "        }\n";
61    code += "        if (a + b + 7 > __i) {\n";
62    code += "            c = j;\n";
63    code += "            x += c;\n";
64    code += "        }\n";
65    code += "        if (a + b + 8 > __i) {\n";
66    code += "            c = k;\n";
67    code += "            x += c;\n";
68    code += "        }\n";
69    for (var j = 0; j < 8; ++j) {
70        code += "        if (a + b + " + (9 + j) + " > __i)\n";
71        code += "            " + String.fromCharCode("d".charCodeAt(0) + j) + " = __i + " + j + " + " + ((i & (1 << (((j / 2) | 0) + 4))) ? "0.5" : "0") + ";\n";
72    }
73    code += "    }\n";
74    code += "    return x + c;\n";
75    code += "}\n";
76    code += "\n";
77    code += "var result = 0;\n"
78    code += "for (var __j = 0; __j < 100; ++__j) {\n";
79    code += "    result += foo({}, __j, __j + 1);\n";
80    code += "}\n";
81    code += "\n";
82    code += "result";
83
84    var theResult = eval(code);
85    debug("Result value is " + theResult);
86    grandResult += theResult;
87}
88
89shouldBe("grandResult", "14578304");
90