1 // Copyright 2013 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: --fold-constants --nodead-code-elimination 29 // Flags: --expose-gc --allow-natives-syntax 30 // Flags: --parallel-recompilation --parallel-recompilation-delay=300 31 32 if (!%IsParallelRecompilationSupported()) { 33 print("Parallel recompilation is disabled. Skipping this test."); 34 quit(); 35 } 36 37 function test(fun) { 38 fun(); 39 fun(); 40 // Mark for parallel optimization. 41 %OptimizeFunctionOnNextCall(fun, "parallel"); 42 //Trigger optimization in the background. 43 fun(); 44 //Tenure cons string. 45 gc(); 46 // In the mean time, parallel recompiling is not complete yet. 47 assertUnoptimized(fun, "no sync"); 48 // Parallel recompilation eventually finishes and embeds tenured cons string. 49 assertOptimized(fun, "sync"); 50 //Visit embedded cons string during mark compact. 51 gc(); 52 } 53 54 function f() { 55 return "abcdefghijklmn" + "123456789"; 56 } 57 58 function g() { 59 return "abcdefghijklmn\u2603" + "123456789"; 60 } 61 62 function h() { 63 return "abcdefghijklmn\u2603" + "123456789\u2604"; 64 } 65 66 test(f); 67 test(g); 68 test(h); 69
