1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 public class Main { 18 int mainField = 42; 19 main(String[] args)20 public static void main(String[] args) throws Exception { 21 System.loadLibrary(args[0]); 22 ensureJitCompiled(Main.class, "$noinline$callRecursiveMethod"); 23 $noinline$callRecursiveMethod(true); 24 } 25 expectEquals(int expected, int actual)26 public static void expectEquals(int expected, int actual) { 27 if (expected != actual) { 28 throw new Error("Expected " + expected + ", got " + actual); 29 } 30 } 31 $noinline$callRecursiveMethod(boolean firstEntry)32 public static void $noinline$callRecursiveMethod(boolean firstEntry) throws Exception { 33 Class<?> cls = Class.forName("LoadedLater"); 34 Main m = (Main)cls.newInstance(); 35 if (firstEntry) { 36 $noinline$callRecursiveMethod(false); 37 } else { 38 expectEquals(0, m.getField()); 39 } 40 } 41 getField()42 public int getField() { 43 return mainField; 44 } 45 ensureJitCompiled(Class<?> cls, String methodName)46 public static native void ensureJitCompiled(Class<?> cls, String methodName); 47 } 48 49 class LoadedLater extends Main { getField()50 public int getField() { 51 return 0; 52 } 53 } 54