1 /*
   2  * Copyright (c) 2016, 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 8150102 8150514 8150534
  27  * @summary C1 crashes in Canonicalizer::do_ArrayLength() after fix for JDK-8150102
  28  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=1 -XX:-BackgroundCompilation CanonicalizeArrayLength
  29  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=1 -XX:-BackgroundCompilation -XX:+PatchALot CanonicalizeArrayLength
  30  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=1 -XX:-BackgroundCompilation -XX:ScavengeRootsInCode=0 CanonicalizeArrayLength
  31  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=1 -XX:-BackgroundCompilation -XX:ScavengeRootsInCode=1 CanonicalizeArrayLength
  32  */
  33 public class CanonicalizeArrayLength {
  34     int[] arr = new int[42];
  35     int[] arrNull = null;
  36 
  37     final int[] finalArr = new int[42];
  38     final int[] finalArrNull = null;
  39 
  40     static int[] staticArr = new int[42];
  41     static int[] staticArrNull = null;
  42 
  43     static final int[] staticFinalArr = new int[42];
  44     static final int[] staticFinalArrNull = null;
  45 
  46     public static void main(String... args) {
  47         CanonicalizeArrayLength t = new CanonicalizeArrayLength();
  48         for (int i = 0; i < 20000; i++) {
  49             if (t.testLocal() != 42)
  50                 throw new IllegalStateException();
  51             if (t.testLocalNull() != 42)
  52                 throw new IllegalStateException();
  53             if (t.testField() != 42)
  54                 throw new IllegalStateException();
  55             if (t.testFieldNull() != 42)
  56                 throw new IllegalStateException();
  57             if (t.testFinalField() != 42)
  58                 throw new IllegalStateException();
  59             if (t.testFinalFieldNull() != 42)
  60                 throw new IllegalStateException();
  61             if (t.testStaticField() != 42)
  62                 throw new IllegalStateException();
  63             if (t.testStaticFieldNull() != 42)
  64                 throw new IllegalStateException();
  65             if (t.testStaticFinalField() != 42)
  66                 throw new IllegalStateException();
  67             if (t.testStaticFinalFieldNull() != 42)
  68                 throw new IllegalStateException();
  69         }
  70     }
  71 
  72     int testField() {
  73         try {
  74             return arr.length;
  75         } catch (Throwable t) {
  76             return -1;
  77         }
  78     }
  79 
  80     int testFieldNull() {
  81         try {
  82             return arrNull.length;
  83         } catch (Throwable t) {
  84             return 42;
  85         }
  86     }
  87 
  88     int testFinalField() {
  89         try {
  90             return finalArr.length;
  91         } catch (Throwable t) {
  92             return -1;
  93         }
  94     }
  95 
  96     int testFinalFieldNull() {
  97         try {
  98             return finalArrNull.length;
  99         } catch (Throwable t) {
 100             return 42;
 101         }
 102     }
 103 
 104     int testStaticField() {
 105         try {
 106             return staticArr.length;
 107         } catch (Throwable t) {
 108             return -1;
 109         }
 110     }
 111 
 112     int testStaticFieldNull() {
 113         try {
 114             return staticArrNull.length;
 115         } catch (Throwable t) {
 116             return 42;
 117         }
 118     }
 119 
 120     int testStaticFinalField() {
 121         try {
 122             return staticFinalArr.length;
 123         } catch (Throwable t) {
 124             return -1;
 125         }
 126     }
 127 
 128     int testStaticFinalFieldNull() {
 129         try {
 130             return staticFinalArrNull.length;
 131         } catch (Throwable t) {
 132             return 42;
 133         }
 134     }
 135 
 136     int testLocal() {
 137         int[] arr = new int[42];
 138         try {
 139             return arr.length;
 140         } catch (Throwable t) {
 141             return -1;
 142         }
 143     }
 144 
 145     int testLocalNull() {
 146         int[] arrNull = null;
 147         try {
 148             return arrNull.length;
 149         } catch (Throwable t) {
 150             return 42;
 151         }
 152     }
 153 
 154 
 155 }