1 /* 2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 import java.lang.Float; 25 import java.lang.RuntimeException; 26 27 /* 28 * @test Test8215902.java 29 * @bug 8215902 30 * @summary Check a known imprecision in Linux ARM softfp implementation. 31 * @run main Test8215902 32 * @author jakvanek 33 */ 34 public strictfp class Test8215902 { 35 private static volatile Float a, b, c; 36 private static volatile int bC; 37 38 private static final int bA = 0x003fffff; 39 private static final int bB = 0x00000001; 40 private static final int bC_OK = 0x00400000; 41 42 public static void main(String... args) { 43 a = Float.intBitsToFloat(bA); 44 b = Float.intBitsToFloat(bB); 45 c = a + b; 46 bC = Float.floatToRawIntBits(c); 47 48 if (bC == bC_OK) { 49 System.out.println("Passed."); 50 } else { 51 String msg = String.format("Failed.\nResult = 0x%08x|%1.60f\nExpected = 0x%08x|%1.60f", 52 bC, c, bC_OK, Float.intBitsToFloat(bC_OK)); 53 throw new RuntimeException(msg); 54 } 55 } 56 } 57