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      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 //
     13 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
     14 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     15 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     16 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     17 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     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
     20 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     21 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     22 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23 
     24 description(
     25 "This tests that if a variable is dead on OSR exit, it will at least contain a valid JS value."
     26 );
     27 
     28 var array = [];
     29 
     30 for (var i = 0; i < 9; ++i) {
     31     var code = "";
     32     code += "(function(";
     33     for (var j = 0; j < i; ++j) {
     34         if (j)
     35             code += ", ";
     36         code += "arg" + j;
     37     }
     38     code += ") {\n";
     39     code += "    return ";
     40     if (i) {
     41         for (var j = 0; j < i; ++j) {
     42             if (j)
     43                 code += " + ";
     44             code += "arg" + j;
     45         }
     46     } else
     47         code += "void 0";
     48     code += ";\n";
     49     code += "})";
     50     array[i] = eval(code);
     51 }
     52 
     53 function foo(a, b) {
     54     var x = 0;
     55     if (a.f < b.f) {
     56         var result = b.g - a.g;
     57         x = !x;
     58         return result;
     59     } else {
     60         var result = a.g - b.g;
     61         x = [x];
     62         return result;
     63     }
     64 }
     65 
     66 var firstArg = {f:2, g:3};
     67 var secondArg = {f:3, g:4};
     68 
     69 for (var i = 0; i < 300; ++i) {
     70     var code = "";
     71     code += "array[" + (((i / 2) | 0) % array.length) + "](";
     72     for (var j = 0; j < (((i / 2) | 0) % array.length); ++j) {
     73         if (j)
     74             code += ", ";
     75         code += i + j;
     76     }
     77     if (i == 150) {
     78         firstArg = {f:2, g:2.5};
     79         secondArg = {f:3, g:3.5};
     80     }
     81     var tmp = firstArg;
     82     firstArg = secondArg;
     83     secondArg = tmp;
     84     code += "); foo(firstArg, secondArg)";
     85     shouldBe(code, "1");
     86 }
     87 
     88