92 lines
3.7 KiB
JavaScript
92 lines
3.7 KiB
JavaScript
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// Copyright 2013 the V8 project authors. All rights reserved.
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// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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description(
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"This tests that the static analysis we use to infer if a variable should be a double doesn't crash."
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);
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var grandResult = 0;
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for (var i = 0; i < 256; ++i) {
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code = "function foo(o, a, b) {\n";
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code += " var x = 0;\n";
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code += " var c = a + b;\n";
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for (var j = 0; j < 8; ++j)
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code += " var " + String.fromCharCode("d".charCodeAt(0) + j) + " = " + ((i & (1 << ((j / 2) | 0))) ? "0.5" : "0") + ";\n";
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code += " for (var __i = 0; __i < 10; ++__i) {\n";
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code += " if (a + b + 1 > __i) {\n";
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code += " c = d;\n";
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code += " x += c;\n";
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code += " }\n";
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code += " if (a + b + 2 > __i) {\n";
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code += " c = e;\n";
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code += " x += c;\n";
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code += " }\n";
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code += " if (a + b + 3 > __i) {\n";
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code += " c = f;\n";
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code += " x += c;\n";
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code += " }\n";
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code += " if (a + b + 4 > __i) {\n";
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code += " c = g;\n";
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code += " x += c;\n";
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code += " }\n";
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code += " if (a + b + 5 > __i) {\n";
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code += " c = h;\n";
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code += " x += c;\n";
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code += " }\n";
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code += " if (a + b + 6 > __i) {\n";
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code += " c = i;\n";
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code += " x += c;\n";
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code += " }\n";
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code += " if (a + b + 7 > __i) {\n";
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code += " c = j;\n";
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code += " x += c;\n";
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code += " }\n";
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code += " if (a + b + 8 > __i) {\n";
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code += " c = k;\n";
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code += " x += c;\n";
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code += " }\n";
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for (var j = 0; j < 8; ++j) {
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code += " if (a + b + " + (9 + j) + " > __i)\n";
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code += " " + String.fromCharCode("d".charCodeAt(0) + j) + " = __i + " + j + " + " + ((i & (1 << (((j / 2) | 0) + 4))) ? "0.5" : "0") + ";\n";
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}
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code += " }\n";
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code += " return x + c;\n";
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code += "}\n";
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code += "\n";
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code += "var result = 0;\n"
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code += "for (var __j = 0; __j < 100; ++__j) {\n";
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code += " result += foo({}, __j, __j + 1);\n";
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code += "}\n";
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code += "\n";
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code += "result";
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var theResult = eval(code);
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debug("Result value is " + theResult);
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grandResult += theResult;
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}
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shouldBe("grandResult", "14578304");
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