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: --expose-debug-as debug --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 Debug = debug.Debug 37 38 function foo() { 39 var x = 1; 40 return x; 41 } 42 43 function bar() { 44 var x = 2; 45 return x; 46 } 47 48 foo(); 49 // Mark and kick off recompilation. 50 %OptimizeFunctionOnNextCall(foo, "concurrent"); 51 foo(); 52 53 // Set break points on an unrelated function. This clears both optimized 54 // and (shared) unoptimized code on foo, and sets both to lazy-compile builtin. 55 // Clear the break point immediately after to deactivate the debugger. 56 // Do all of this after compile graph has been created. 57 Debug.setListener(function(){}); 58 Debug.setBreakPoint(bar, 0, 0); 59 Debug.clearAllBreakPoints(); 60 Debug.setListener(null); 61 62 // At this point, concurrent recompilation is still blocked. 63 assertUnoptimized(foo, "no sync"); 64 // Let concurrent recompilation proceed. 65 %UnblockConcurrentRecompilation(); 66 67 // Install optimized code when concurrent optimization finishes. 68 // This needs to be able to deal with shared code being a builtin. 69 assertUnoptimized(foo, "sync"); 70