1 /* 2 * Copyright (c) 2019, 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 8202952 27 * @summary C2: Unexpected dead nodes after matching 28 * 29 * @run main/othervm -XX:-TieredCompilation -Xcomp -XX:CompileOnly=::test 30 * compiler.c2.TestMatcherLargeOffset 31 */ 32 package compiler.c2; 33 34 public class TestMatcherLargeOffset { 35 public static final int N = 400; 36 public static int iArrFld[] = new int[N]; 37 38 public static void m(int i4) { 39 i4 |= -104; 40 iArrFld[(i4 >>> 1) % N] >>= i4; 41 } 42 43 public static void test() { 44 int i2 = 1, i24 = 65; 45 for (int i1 = 7; i1 < 384; ++i1) { 46 for (long l = 2; l < 67; l++) { 47 m(i2); 48 for (i24 = 1; 2 > i24; ++i24) { 49 iArrFld = iArrFld; 50 } 51 } 52 i2 = (-229 / i24); 53 } 54 } 55 public static void main(String[] strArr) { 56 for (int i = 0; i < 5; i++ ) { 57 test(); 58 } 59 } 60 }