// Copyright 2013 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Flags: --concurrent-recompilation --block-concurrent-recompilation if (!%IsConcurrentRecompilationSupported()) { print("Concurrent recompilation is disabled. Skipping this test."); quit(); } Debug = debug.Debug; function listener(event, exec_state, event_data, data) { if (event != Debug.DebugEvent.Break) return; try { assertEquals("foo", exec_state.frame(0).evaluate("a").value()); } catch (e) { exception = e; }; listened++; }; var exception = null; var listened = 0; var f = function() { var a = "foo"; var b = a.substring("1"); [a, b].sort(); return a; } f(); f(); %OptimizeFunctionOnNextCall(f, "concurrent"); // Mark with builtin. f(); // Kick off concurrent recompilation. // After compile graph has been created... Debug.setListener(listener); // Activate debugger. Debug.setBreakPoint(f, 2, 0); // Force deopt. // At this point, concurrent recompilation is still being blocked. assertUnoptimized(f, "no sync"); // Let concurrent recompilation proceed. %UnblockConcurrentRecompilation(); // Sync with optimization thread. But no optimized code is installed. assertUnoptimized(f, "sync"); f(); // Trigger break point. assertEquals(1, listened); assertNull(exception);