1 /* 2 * Copyright (C) 2013 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 static final long NUM_ITERATIONS = 50000; 19 static volatile double negInfinity = Double.NEGATIVE_INFINITY; 20 main(String args[])21 public static void main(String args[]) { 22 23 long sumInf = 0; 24 long sumRes = 0; 25 26 for (long i = 0 ; i < NUM_ITERATIONS ; i++) { 27 //Every second iteration, sumInf becomes 0 28 sumInf += (long) negInfinity; 29 30 //Some extra work for compilers to make this 31 //loop seem important 32 if (sumInf == Long.MIN_VALUE) { 33 sumRes++; 34 } 35 } 36 37 if (sumRes == NUM_ITERATIONS / 2) { 38 System.out.println("Result is as expected"); 39 } else { 40 System.out.println("Conversions failed over " + NUM_ITERATIONS + " iterations"); 41 } 42 } 43 } 44