| // 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 the static analysis we use to infer if a variable should be a double doesn't crash." |
| ); |
| |
| var grandResult = 0; |
| |
| for (var i = 0; i < 256; ++i) { |
| code = "function foo(o, a, b) {\n"; |
| code += " var x = 0;\n"; |
| code += " var c = a + b;\n"; |
| for (var j = 0; j < 8; ++j) |
| code += " var " + String.fromCharCode("d".charCodeAt(0) + j) + " = " + ((i & (1 << ((j / 2) | 0))) ? "0.5" : "0") + ";\n"; |
| code += " for (var __i = 0; __i < 10; ++__i) {\n"; |
| code += " if (a + b + 1 > __i) {\n"; |
| code += " c = d;\n"; |
| code += " x += c;\n"; |
| code += " }\n"; |
| code += " if (a + b + 2 > __i) {\n"; |
| code += " c = e;\n"; |
| code += " x += c;\n"; |
| code += " }\n"; |
| code += " if (a + b + 3 > __i) {\n"; |
| code += " c = f;\n"; |
| code += " x += c;\n"; |
| code += " }\n"; |
| code += " if (a + b + 4 > __i) {\n"; |
| code += " c = g;\n"; |
| code += " x += c;\n"; |
| code += " }\n"; |
| code += " if (a + b + 5 > __i) {\n"; |
| code += " c = h;\n"; |
| code += " x += c;\n"; |
| code += " }\n"; |
| code += " if (a + b + 6 > __i) {\n"; |
| code += " c = i;\n"; |
| code += " x += c;\n"; |
| code += " }\n"; |
| code += " if (a + b + 7 > __i) {\n"; |
| code += " c = j;\n"; |
| code += " x += c;\n"; |
| code += " }\n"; |
| code += " if (a + b + 8 > __i) {\n"; |
| code += " c = k;\n"; |
| code += " x += c;\n"; |
| code += " }\n"; |
| for (var j = 0; j < 8; ++j) { |
| code += " if (a + b + " + (9 + j) + " > __i)\n"; |
| code += " " + String.fromCharCode("d".charCodeAt(0) + j) + " = __i + " + j + " + " + ((i & (1 << (((j / 2) | 0) + 4))) ? "0.5" : "0") + ";\n"; |
| } |
| code += " }\n"; |
| code += " return x + c;\n"; |
| code += "}\n"; |
| code += "\n"; |
| code += "var result = 0;\n" |
| code += "for (var __j = 0; __j < 100; ++__j) {\n"; |
| code += " result += foo({}, __j, __j + 1);\n"; |
| code += "}\n"; |
| code += "\n"; |
| code += "result"; |
| |
| var theResult = eval(code); |
| debug("Result value is " + theResult); |
| grandResult += theResult; |
| } |
| |
| shouldBe("grandResult", "14578304"); |
