| // 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( | 
 | "Tests that the DFG doesn't get confused about an edge being a double edge after we perform CFG simplification." | 
 | ); | 
 |  | 
 | function foo(a, p) { | 
 |     var p2; | 
 |     var x; | 
 |     var y; | 
 |     if (p) | 
 |         p2 = true; | 
 |     else | 
 |         p2 = true; | 
 |     if (p2) | 
 |         x = a; | 
 |     else | 
 |         x = 0.5; | 
 |     if (p2) | 
 |         y = a; | 
 |     else | 
 |         y = 0.7; | 
 |     var result = x + y; | 
 |     return [result, [x, y], [x, y], [x, y]]; | 
 | } | 
 |  | 
 | for (var i = 0; i < 1000; ++i) | 
 |     shouldBe("foo(42, true)[0]", "84"); |