/* * Copyright (C) 2015 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 int[] bar(int[] a) { a[0] = 0; a[1] = 0; a[2] = 0; // Up to this point, we record that the lower bound (inclusive) is 3. // The next instruction will record that the lower bound is 5. // The deoptimization code used to assume the lower bound has // to be the one it will add for the deoptimization check (here, it // would be 3). return new int[a.length - 5]; } public static int[] foo(int[] a) { a[0] = 0; a[1] = 0; a[2] = 0; // Up to this point, we record that the lower bound (inclusive) is 3. // The next instruction will record that the lower bound is 1. // The deoptimization code used to assume the lower bound has // to be the one it will add for the deoptimization check (here, it // would be 3). return new int[a.length - 1]; } public static void main(String[] args) { int[] a = new int[5]; int[] result = bar(a); if (result.length != 0) { throw new Error("Expected 0, got " + result.length); } result = foo(a); if (result.length != 4) { throw new Error("Expected 5, got " + result.length); } } }