1// Copyright 2011 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are 4// met: 5// 6// * Redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer. 8// * Redistributions in binary form must reproduce the above 9// copyright notice, this list of conditions and the following 10// disclaimer in the documentation and/or other materials provided 11// with the distribution. 12// * Neither the name of Google Inc. nor the names of its 13// contributors may be used to endorse or promote products derived 14// from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28// Flags: --allow-natives-syntax 29 30// Test that the Lithium environment iterator does stop iteration early. 31"use strict"; 32 33function f0() { 34 return f1('literal', true); 35} 36 37function f1(x, y) { 38 return f2(x, y); 39} 40 41// Because it's strict, f2 has an environment containing only the constants 42// undefined, 'literal', and false. Bug 1423 would cause environment 43// iteration to stop early. 44// 45// Bug manifests as UNREACHABLE code (due to an unallocated register) in 46// debug builds. 47function f2(x, y) { 48 if (y) { 49 if (f3(x, 'other-literal')) { 50 return 0; 51 } else { 52 return 1; 53 } 54 } else { 55 return 2; 56 } 57} 58 59function f3(x, y) { 60 return x === y; 61} 62 63for (var i = 0; i < 5; ++i) f0(); 64%OptimizeFunctionOnNextCall(f0); 65assertEquals(1, f0()); 66