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 }