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 /** 25 * @test 26 * @bug 8211100 27 * @summary hotspot C1 issue with comparing long numbers on x86 32-bit 28 * 29 * @run main/othervm -XX:+PrintCompilation -XX:CompileOnly=compiler.c1.Test8211100::test 30 * -XX:CompileCommand=quiet compiler.c1.Test8211100 31 */ 32 33 package compiler.c1; 34 35 public class Test8211100 { 36 private static final int ITERATIONS = 100_000; 37 38 public static void main(String[] args) { 39 for (int i = 0; i < ITERATIONS; i++) { 40 test(4558828911L, 41 4294967296L); 42 } 43 } 44 45 private static void test(long one, long two) { 46 while (true) { 47 if (one >= two) { 48 break; 49 } 50 } 51 } 52 }