1// Copyright 2012 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: --allow-natives-syntax --expose-gc 29// Flags: --concurrent-recompilation --block-concurrent-recompilation 30 31if (!%IsConcurrentRecompilationSupported()) { 32 print("Concurrent recompilation is disabled. Skipping this test."); 33 quit(); 34} 35 36function f(x) { 37 var xx = x * x; 38 var xxstr = xx.toString(); 39 return xxstr.length; 40} 41 42function g(x) { 43 var xxx = Math.sqrt(x) | 0; 44 var xxxstr = xxx.toString(); 45 return xxxstr.length; 46} 47 48function k(x) { 49 return x * x; 50} 51 52f(g(1)); 53assertUnoptimized(f); 54assertUnoptimized(g); 55 56%OptimizeFunctionOnNextCall(f, "concurrent"); 57%OptimizeFunctionOnNextCall(g, "concurrent"); 58f(g(2)); // Kick off recompilation. 59 60assertUnoptimized(f, "no sync"); // Not yet optimized since recompilation 61assertUnoptimized(g, "no sync"); // is still blocked. 62 63// Let concurrent recompilation proceed. 64%UnblockConcurrentRecompilation(); 65 66assertOptimized(f, "sync"); // Optimized once we sync with the 67assertOptimized(g, "sync"); // background thread. 68