1 /*
   2  * Copyright (c) 2009, 2015, 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 6589834
  27  * @summary Safepoint placed between stack pointer increment and decrement leads
  28  *          to interpreter's stack corruption after deoptimization.
  29  * @library /testlibrary /test/lib /
  30  * @modules java.base/jdk.internal.misc
  31  *          java.compiler
  32  *          java.management
  33  *          jdk.jvmstat/sun.jvmstat.monitor
  34  *
  35  * @build ClassFileInstaller sun.hotspot.WhiteBox jdk.test.lib.*
  36  *        compiler.c2.cr6589834.Test_ia32
  37  *        compiler.c2.cr6589834.InlinedArrayCloneTestCase
  38  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  39  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  40  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  41  *      -XX:+WhiteBoxAPI -XX:+IgnoreUnrecognizedVMOptions -XX:+VerifyStack
  42  *      -XX:CompileCommand=compileonly,compiler.c2.cr6589834.InlinedArrayCloneTestCase::*
  43  *      -XX:CompileCommand=dontinline,compiler.c2.cr6589834.InlinedArrayCloneTestCase::invokeArrayClone
  44  *      -XX:CompileCommand=inline,compiler.c2.cr6589834.InlinedArrayCloneTestCase::verifyArguments
  45  *      compiler.c2.cr6589834.Test_ia32
  46  */
  47 
  48 package compiler.c2.cr6589834;
  49 
  50 import jdk.test.lib.Asserts;
  51 import sun.hotspot.WhiteBox;
  52 
  53 import java.lang.reflect.Method;
  54 
  55 public class Test_ia32 {
  56     private static final int NUM_THREADS
  57             = Math.min(100, 2 * Runtime.getRuntime().availableProcessors());
  58     private static final int CLONE_LENGTH = 1000;
  59 
  60     private static WhiteBox wb = WhiteBox.getWhiteBox();
  61 
  62     private final LoadedClass[] ARRAY = new LoadedClass[Test_ia32.CLONE_LENGTH];
  63     private volatile boolean doSpin = true;
  64     private volatile boolean testFailed = false;
  65 
  66     public boolean continueExecution() {
  67         return doSpin;
  68     }
  69 
  70     public void stopExecution() {
  71         doSpin = false;
  72     }
  73 
  74     public boolean isTestFailed() {
  75         return testFailed;
  76     }
  77 
  78     public void setTestFailed() {
  79         this.testFailed = true;
  80         stopExecution();
  81     }
  82 
  83     public LoadedClass[] getArray() {
  84         return ARRAY;
  85     }
  86 
  87     public void runTest() {
  88         Thread[] threads = new Thread[Test_ia32.NUM_THREADS];
  89         Method method;
  90 
  91         try {
  92             method = InlinedArrayCloneTestCase.class.getDeclaredMethod(
  93                     "invokeArrayClone", LoadedClass[].class);
  94         } catch (NoSuchMethodException e) {
  95             throw new Error("Tested method not found", e);
  96         }
  97 
  98         Asserts.assertTrue(wb.isMethodCompilable(method),
  99                 "Method " + method.getName() + " should be compilable.");
 100 
 101         for (int i = 0; i < threads.length; i++) {
 102             threads[i] = new Thread(new InlinedArrayCloneTestCase(this));
 103             threads[i].start();
 104         }
 105 
 106         /*
 107          * Wait until InlinedArrayCloneTestCase::invokeArrayClone is compiled.
 108          */
 109         while (!wb.isMethodCompiled(method)) {
 110             Thread.yield();
 111         }
 112 
 113         /*
 114          * Load NotLoadedClass to cause deoptimization of
 115          * InlinedArrayCloneTestCase::invokeArrayClone due to invalidated
 116          * dependency.
 117          */
 118         try {
 119             Class.forName(Test_ia32.class.getPackage().getName() + ".NotLoadedClass");
 120         } catch (ClassNotFoundException e) {
 121             throw new Error("Unable to load class that invalidates "
 122                     + "CHA-dependency for method " + method.getName(), e);
 123         }
 124 
 125         stopExecution();
 126 
 127         for (Thread thread : threads) {
 128             try {
 129                 thread.join();
 130             } catch (InterruptedException e) {
 131                 throw new Error("Fail to join thread " + thread, e);
 132             }
 133         }
 134 
 135         Asserts.assertFalse(isTestFailed(), "Test failed.");
 136     }
 137 
 138     public static void main(String[] args) {
 139         new Test_ia32().runTest();
 140     }
 141 }
 142 
 143 class LoadedClass {
 144 }
 145 
 146 @SuppressWarnings("unused")
 147 class NotLoadedClass extends LoadedClass {
 148 }