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 31if (!%IsConcurrentRecompilationSupported()) { 32 print("Concurrent recompilation is disabled. Skipping this test."); 33 quit(); 34} 35 36Debug = debug.Debug; 37 38function listener(event, exec_state, event_data, data) { 39 if (event != Debug.DebugEvent.Break) return; 40 try { 41 assertEquals("foo", exec_state.frame(0).evaluate("a").value()); 42 } catch (e) { 43 exception = e; 44 }; 45 listened++; 46}; 47 48var exception = null; 49var listened = 0; 50 51var f = function() { 52 var a = "foo"; 53 var b = a.substring("1"); 54 [a, b].sort(); 55 return a; 56} 57 58f(); 59f(); 60%OptimizeFunctionOnNextCall(f, "concurrent"); // Mark with builtin. 61f(); // Kick off concurrent recompilation. 62 63// After compile graph has been created... 64Debug.setListener(listener); // Activate debugger. 65Debug.setBreakPoint(f, 2, 0); // Force deopt. 66 67// At this point, concurrent recompilation is still being blocked. 68assertUnoptimized(f, "no sync"); 69// Let concurrent recompilation proceed. 70%UnblockConcurrentRecompilation(); 71// Sync with optimization thread. But no optimized code is installed. 72assertUnoptimized(f, "sync"); 73 74f(); // Trigger break point. 75assertEquals(1, listened); 76assertNull(exception); 77