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