// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1.  Redistributions of source code must retain the above copyright
//     notice, this list of conditions and the following disclaimer.
// 2.  Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in the
//     documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

description(
"This tests that if a variable is dead on OSR exit, it will at least contain a valid JS value."
);

var array = [];

for (var i = 0; i < 9; ++i) {
    var code = "";
    code += "(function(";
    for (var j = 0; j < i; ++j) {
        if (j)
            code += ", ";
        code += "arg" + j;
    }
    code += ") {\n";
    code += "    return ";
    if (i) {
        for (var j = 0; j < i; ++j) {
            if (j)
                code += " + ";
            code += "arg" + j;
        }
    } else
        code += "void 0";
    code += ";\n";
    code += "})";
    array[i] = eval(code);
}

function foo(a, b) {
    var x = 0;
    if (a.f < b.f) {
        var result = b.g - a.g;
        x = !x;
        return result;
    } else {
        var result = a.g - b.g;
        x = [x];
        return result;
    }
}

var firstArg = {f:2, g:3};
var secondArg = {f:3, g:4};

for (var i = 0; i < 300; ++i) {
    var code = "";
    code += "array[" + (((i / 2) | 0) % array.length) + "](";
    for (var j = 0; j < (((i / 2) | 0) % array.length); ++j) {
        if (j)
            code += ", ";
        code += i + j;
    }
    if (i == 150) {
        firstArg = {f:2, g:2.5};
        secondArg = {f:3, g:3.5};
    }
    var tmp = firstArg;
    firstArg = secondArg;
    secondArg = tmp;
    code += "); foo(firstArg, secondArg)";
    shouldBe(code, "1");
}
