/* * Copyright (C) 2017 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { public static void main(String[] args) { System.loadLibrary(args[0]); loop(); ensureJitCompiled(Main.class, "$noinline$doCall"); loop(); } public static void loop() { Main m = new Main(); for (int i = 0; i < 5000; i++) { $noinline$doCall("foo"); $noinline$doCall(m); if (numberOfDeoptimizations() != 0) { throw new Error("Unexpected deoptimizations"); } } } public static boolean $noinline$doCall(Object foo) { return foo.equals(Main.class); } public static native int numberOfDeoptimizations(); public static native void ensureJitCompiled(Class<?> cls, String methodName); }