| Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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 the static analysis we use to infer if a variable should be a double doesn't crash." |
| 26 | ); |
| 27 | |
| 28 | var grandResult = 0; |
| 29 | |
| 30 | for (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 | |
| 89 | shouldBe("grandResult", "14578304"); |