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: --track-fields --track-double-fields --allow-natives-syntax 29 // Flags: --concurrent-recompilation --block-concurrent-recompilation 30 31 if (!%IsConcurrentRecompilationSupported()) { 32 print("Concurrent recompilation is disabled. Skipping this test."); 33 quit(); 34 } 35 36 function new_object() { 37 var o = {}; 38 o.a = 1; 39 o.b = 2; 40 return o; 41 } 42 43 function add_field(obj) { 44 obj.c = 3; 45 } 46 var obj1 = new_object(); 47 var obj2 = new_object(); 48 add_field(obj1); 49 add_field(obj2); 50 %OptimizeFunctionOnNextCall(add_field, "concurrent"); 51 52 var o = new_object(); 53 // Kick off recompilation. 54 add_field(o); 55 // Invalidate transition map after compile graph has been created. 56 o.c = 2.2; 57 // In the mean time, concurrent recompiling is still blocked. 58 assertUnoptimized(add_field, "no sync"); 59 // Let concurrent recompilation proceed. 60 %UnblockConcurrentRecompilation(); 61 // Sync with background thread to conclude optimization that bailed out. 62 assertUnoptimized(add_field, "sync"); 63 // Clear type info for stress runs. 64 %ClearFunctionTypeFeedback(add_field); 65
