1 /*

     2  * Copyright (c) 2013, 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 package org.graalvm.compiler.hotspot.test;

    25 

    26 import java.util.ArrayDeque;

    27 import java.util.ArrayList;

    28 import java.util.Arrays;

    29 import java.util.Collections;

    30 import java.util.HashMap;

    31 import java.util.List;

    32 import java.util.concurrent.atomic.AtomicReference;

    33 

    34 import org.junit.Assert;

    35 import org.junit.Test;

    36 

    37 import org.graalvm.compiler.core.test.GraalCompilerTest;

    38 

    39 import jdk.vm.ci.hotspot.HotSpotInstalledCode;

    40 import jdk.vm.ci.meta.ResolvedJavaMethod;

    41 

    42 /**

    43  * The following tests perform object/array equality and assignments in various ways. The selected

    44  * cases have been the problematic ones while implementing the Compressed Oops support.

    45  */

    46 public class CompressedOopTest extends GraalCompilerTest {

    47 

    48     private HotSpotInstalledCode getInstalledCode(String name, Class<?>... parameterTypes) throws Exception {

    49         final ResolvedJavaMethod javaMethod = getResolvedJavaMethod(getClass(), name, parameterTypes);

    50         final HotSpotInstalledCode installedBenchmarkCode = (HotSpotInstalledCode) getCode(javaMethod);

    51         return installedBenchmarkCode;

    52     }

    53 

    54     @Test

    55     public void test() throws Exception {

    56         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("fieldTest", Object.class);

    57         Container c1 = new Container();

    58         Assert.assertEquals(c1.b, installedBenchmarkCode.executeVarargs(c1));

    59     }

    60 

    61     public static Object fieldTest(Object c1) {

    62         ((Container) c1).a = ((Container) c1).b;

    63         return ((Container) c1).a;

    64     }

    65 

    66     @Test

    67     public void test1() throws Exception {

    68         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("arrayTest", Object.class, Object.class, Object.class);

    69         ArrayContainer ac = new ArrayContainer();

    70         Assert.assertEquals(ac.a[9], installedBenchmarkCode.executeVarargs(ac.a, 0, 9));

    71         Assert.assertEquals(ac.a[8], installedBenchmarkCode.executeVarargs(ac.a, 1, 8));

    72         Assert.assertEquals(ac.a[7], installedBenchmarkCode.executeVarargs(ac.a, 2, 7));

    73         Assert.assertEquals(ac.a[6], installedBenchmarkCode.executeVarargs(ac.a, 3, 6));

    74         Assert.assertEquals(ac.a[5], installedBenchmarkCode.executeVarargs(ac.a, 4, 5));

    75         Assert.assertEquals(ac.a[4], installedBenchmarkCode.executeVarargs(ac.a, 5, 4));

    76         Assert.assertEquals(ac.a[3], installedBenchmarkCode.executeVarargs(ac.a, 6, 3));

    77         Assert.assertEquals(ac.a[2], installedBenchmarkCode.executeVarargs(ac.a, 7, 2));

    78         Assert.assertEquals(ac.a[1], installedBenchmarkCode.executeVarargs(ac.a, 8, 1));

    79         Assert.assertEquals(ac.a[0], installedBenchmarkCode.executeVarargs(ac.a, 9, 0));

    80     }

    81 

    82     public static Object arrayTest(Object c1, Object c2, Object c3) {

    83         Object[] array = (Object[]) c1;

    84         int initialIndex = ((Integer) c2).intValue();

    85         int replacingIndex = ((Integer) c3).intValue();

    86         array[initialIndex] = array[replacingIndex];

    87         return array[initialIndex];

    88     }

    89 

    90     @Test

    91     public void test2() throws Exception {

    92         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("arrayCopyTest", Object.class, Object.class);

    93         ArrayContainer source = new ArrayContainer();

    94         ArrayContainer destination = new ArrayContainer();

    95         Assert.assertEquals(source.a.length, destination.a.length);

    96         Assert.assertFalse(Arrays.equals(source.a, destination.a));

    97         installedBenchmarkCode.executeVarargs(source.a, destination.a);

    98         Assert.assertArrayEquals(source.a, destination.a);

    99     }

   100 

   101     public static void arrayCopyTest(Object c1, Object c2) {

   102         Object[] source = (Object[]) c1;

   103         Object[] destination = (Object[]) c2;

   104         System.arraycopy(source, 0, destination, 0, source.length);

   105     }

   106 

   107     @Test

   108     public void test3() throws Exception {

   109         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("compareAndSwapTest", Object.class, Object.class, Object.class);

   110         Object initial = new Object();

   111         Object replacement = new Object();

   112         AtomicReference<Object> cas = new AtomicReference<>();

   113         Assert.assertEquals(cas.get(), null);

   114         installedBenchmarkCode.executeVarargs(cas, null, initial);

   115         Assert.assertEquals(cas.get(), initial);

   116         installedBenchmarkCode.executeVarargs(cas, initial, replacement);

   117         Assert.assertEquals(cas.get(), replacement);

   118     }

   119 

   120     @SuppressWarnings("unchecked")

   121     public static void compareAndSwapTest(Object c1, Object c2, Object c3) throws ClassCastException {

   122         AtomicReference<Object> cas = (AtomicReference<Object>) c1;

   123         cas.compareAndSet(c2, c3);

   124     }

   125 

   126     @Test

   127     public void test4() throws Exception {

   128         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("charArrayCopyTest", Object.class, Object.class, Object.class);

   129         StringContainer1 source1 = new StringContainer1();

   130         StringContainer2 source2 = new StringContainer2();

   131         char[] result = new char[source1.value.length + source2.value.length];

   132         installedBenchmarkCode.executeVarargs(source1.value, source2.value, result);

   133         Assert.assertArrayEquals(new char[]{'T', 'e', 's', 't', ' ', 'S', 't', 'r', 'i', 'n', 'g'}, result);

   134     }

   135 

   136     public static char[] charArrayCopyTest(Object c1, Object c2, Object c3) {

   137         char[] source1 = (char[]) c1;

   138         char[] source2 = (char[]) c2;

   139         char[] result = (char[]) c3;

   140         for (int i = 0; i < source1.length; i++) {

   141             result[i] = source1[i];

   142         }

   143 

   144         for (int i = 0; i < source2.length; i++) {

   145             result[source1.length + i] = source2[i];

   146         }

   147         return result;

   148     }

   149 

   150     @Test

   151     public void test5() throws Exception {

   152         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("charContainerArrayCopyTest", Object.class, Object.class, Object.class);

   153         StringContainer1 source1 = new StringContainer1();

   154         StringContainer2 source2 = new StringContainer2();

   155         char[] result = new char[source1.value.length + source2.value.length];

   156         installedBenchmarkCode.executeVarargs(source1, source2, result);

   157         Assert.assertArrayEquals(new char[]{'T', 'e', 's', 't', ' ', 'S', 't', 'r', 'i', 'n', 'g'}, result);

   158     }

   159 

   160     public static char[] charContainerArrayCopyTest(Object c1, Object c2, Object c3) {

   161         char[] source1 = ((StringContainer1) c1).value;

   162         char[] source2 = ((StringContainer2) c2).value;

   163         char[] result = (char[]) c3;

   164         for (int i = 0; i < source1.length; i++) {

   165             result[i] = source1[i];

   166         }

   167         for (int i = 0; i < source2.length; i++) {

   168             result[source1.length + i] = source2[i];

   169         }

   170         return result;

   171     }

   172 

   173     @Test

   174     public void test6() throws Exception {

   175         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("stringCopyTest", Object.class, Object.class);

   176         String a = new String("Test ");

   177         String b = new String("String");

   178         String c = (String) installedBenchmarkCode.executeVarargs(a, b);

   179         Assert.assertTrue(c.equals("Test String"));

   180     }

   181 

   182     public static String stringCopyTest(Object c1, Object c2) {

   183         String source = (String) c1;

   184         String destination = (String) c2;

   185         return source + destination;

   186     }

   187 

   188     @Test

   189     public void test7() throws Exception {

   190         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("queueTest", Object.class, Object.class);

   191         ArrayDeque<Object> q = new ArrayDeque<>();

   192         Object[] objects = new Object[512];

   193         for (int i = 0; i < objects.length; i++) {

   194             objects[i] = new Object();

   195         }

   196         int j = 0;

   197         while (j < objects.length) {

   198             if (!installedBenchmarkCode.isValid()) {

   199                 // This can get invalidated due to lack of MDO update

   200                 installedBenchmarkCode = getInstalledCode("queueTest", Object.class, Object.class);

   201             }

   202             installedBenchmarkCode.executeVarargs(q, objects[j]);

   203             j++;

   204         }

   205 

   206         System.gc();

   207         Assert.assertTrue(q.size() == objects.length);

   208         Assert.assertTrue(!q.isEmpty());

   209         j = 0;

   210         while (j < objects.length) {

   211             Assert.assertTrue(objects[j] == q.remove());

   212             j++;

   213         }

   214 

   215         Assert.assertTrue(q.size() == 0);

   216         Assert.assertTrue(q.isEmpty());

   217     }

   218 

   219     @SuppressWarnings("unchecked")

   220     public static void queueTest(Object c1, Object c2) {

   221         ArrayDeque<Object> queue = (ArrayDeque<Object>) c1;

   222         queue.add(c2);

   223     }

   224 

   225     @Test

   226     public void test8() throws Exception {

   227         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("unmodListTest", Object.class);

   228         List<Object> list = new ArrayList<>();

   229         for (int i = 0; i < 512; i++) {

   230             list.add(new Object());

   231         }

   232         Object[] array = (Object[]) installedBenchmarkCode.executeVarargs(list);

   233         Assert.assertTrue(list.size() == array.length);

   234         int i = 0;

   235         for (Object obj : list) {

   236             Assert.assertTrue(obj == array[i]);

   237             i++;

   238         }

   239     }

   240 

   241     @SuppressWarnings("unchecked")

   242     public static Object[] unmodListTest(Object c1) {

   243         List<Object> queue = (ArrayList<Object>) c1;

   244         Object[] result = Collections.unmodifiableCollection(queue).toArray(new Object[queue.size()]);

   245         return result;

   246     }

   247 

   248     @Test

   249     public void test9() throws Exception {

   250         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("unmodListTest", Object.class);

   251         List<Object> list = new ArrayList<>();

   252         Object[] array = (Object[]) installedBenchmarkCode.executeVarargs(list);

   253         Assert.assertTrue(list.size() == array.length);

   254     }

   255 

   256     public void test10() throws Exception {

   257         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("constantTest", Object.class);

   258         Container c = new Container();

   259         Assert.assertFalse((boolean) installedBenchmarkCode.executeVarargs(c));

   260     }

   261 

   262     public static Boolean constantTest(Object c1) {

   263         ConstantContainer container = (ConstantContainer) c1;

   264         return container.a.equals(container.b);

   265     }

   266 

   267     @Test

   268     public void test11() throws Exception {

   269         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("stringEqualsTest", Object.class, Object.class);

   270         String s1 = new String("Test");

   271         String s2 = new String("Test");

   272         boolean result = ((Boolean) (installedBenchmarkCode.executeVarargs(s1, s2))).booleanValue();

   273         Assert.assertTrue(result);

   274     }

   275 

   276     public static Boolean stringEqualsTest(Object c1, Object c2) {

   277         return ((String) c1).equals(c2);

   278     }

   279 

   280     @Test

   281     public void test12() throws Exception {

   282         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("stringConstantEqualsTest", Object.class);

   283         String s1 = new String("Test");

   284         boolean result = ((Boolean) (installedBenchmarkCode.executeVarargs(s1))).booleanValue();

   285         Assert.assertTrue(result);

   286     }

   287 

   288     public static Boolean stringConstantEqualsTest(Object c1) {

   289         return "Test".equals(c1);

   290     }

   291 

   292     @SuppressWarnings("unchecked")

   293     public static Object[] unmodListTestByte(Object c1) {

   294         List<Byte> queue = (ArrayList<Byte>) c1;

   295         Byte[] result = Collections.unmodifiableCollection(queue).toArray(new Byte[queue.size()]);

   296         return result;

   297     }

   298 

   299     @Test

   300     public void test13() throws Exception {

   301         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("unmodListTestByte", Object.class);

   302         List<Byte> list = new ArrayList<>();

   303         Byte[] array = (Byte[]) installedBenchmarkCode.executeVarargs(list);

   304         Assert.assertTrue(list.size() == array.length);

   305     }

   306 

   307     @Test

   308     public void test14() throws Exception {

   309         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("stringBuilderTest", Object.class, Object.class);

   310         StringBuilder buffer = new StringBuilder("TestTestTestTestTestTestTest");

   311         Assert.assertTrue(buffer.length() == 28);

   312         String a = new String("TestTestTestTestTestTestTest");

   313         installedBenchmarkCode.executeVarargs(buffer, a.toCharArray());

   314         Assert.assertTrue(buffer.length() == 56);

   315         Assert.assertTrue(buffer.toString().equals("TestTestTestTestTestTestTestTestTestTestTestTestTestTest"));

   316     }

   317 

   318     public static void stringBuilderTest(Object c1, Object c2) {

   319         StringBuilder source = (StringBuilder) c1;

   320         char[] add = (char[]) c2;

   321         for (int i = 0; i < add.length; i++) {

   322             source.append(add[i]);

   323         }

   324     }

   325 

   326     @Test

   327     public void test15() throws Exception {

   328         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("stringBuilderTestIn");

   329         installedBenchmarkCode.executeVarargs();

   330     }

   331 

   332     public static void stringBuilderTestIn() {

   333         StringBuilder buffer = new StringBuilder("TestTestTestTestTestTestTest");

   334         Assert.assertTrue(buffer.length() == 28);

   335         String a = new String("TestTestTestTestTestTestTest");

   336         char[] add = a.toCharArray();

   337         for (int i = 0; i < add.length; i++) {

   338             buffer.append(add[i]);

   339         }

   340         Assert.assertTrue(buffer.length() == 56);

   341         Assert.assertTrue(buffer.toString().equals("TestTestTestTestTestTestTestTestTestTestTestTestTestTest"));

   342     }

   343 

   344     @Test

   345     public void test16() throws Exception {

   346         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("stringBuilderArrayCopy");

   347         installedBenchmarkCode.executeVarargs();

   348     }

   349 

   350     public static void stringBuilderArrayCopy() {

   351         StringBuilder buffer = new StringBuilder("TestTestTestTestTestTestTest");

   352         Assert.assertTrue(buffer.length() == 28);

   353         String a = new String("TestTestTestTestTestTestTest");

   354         char[] dst = new char[buffer.length() * 2];

   355         System.arraycopy(buffer.toString().toCharArray(), 0, dst, 0, buffer.length());

   356         System.arraycopy(a.toCharArray(), 0, dst, buffer.length(), buffer.length());

   357         Assert.assertTrue(dst.length == 56);

   358         Assert.assertTrue(new String(dst).equals("TestTestTestTestTestTestTestTestTestTestTestTestTestTest"));

   359     }

   360 

   361     @Test

   362     public void test17() throws Exception {

   363         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("stringFormat");

   364         installedBenchmarkCode.executeVarargs();

   365     }

   366 

   367     public static void stringFormat() {

   368         String.format("Hello %d", 0);

   369         String.format("Hello %d", -11);

   370         String.format("Hello %d", -2147483648);

   371     }

   372 

   373     @Test

   374     public void test18() throws Exception {

   375         HotSpotInstalledCode installedBenchmarkCode = getInstalledCode("stringBuilder");

   376         StringBuilder b = (StringBuilder) installedBenchmarkCode.executeVarargs();

   377         Assert.assertTrue(b.capacity() == 16);

   378         Assert.assertTrue(b.length() == 0);

   379     }

   380 

   381     public static Object stringBuilder() {

   382         return new StringBuilder();

   383     }

   384 

   385     static class Container {

   386 

   387         public Object a = new Object();

   388         public Object b = new Object();

   389     }

   390 

   391     static class ArrayContainer {

   392 

   393         public Object[] a = new Object[10];

   394 

   395         ArrayContainer() {

   396             for (int i = 0; i < 10; i++) {

   397                 a[i] = new Object();

   398             }

   399         }

   400     }

   401 

   402     static class HashMapContainer {

   403 

   404         public HashMap<Object, Object> a = new HashMap<>();

   405 

   406         HashMapContainer() {

   407             for (int i = 0; i < 10; i++) {

   408                 a.put(new Object(), new Object());

   409             }

   410         }

   411     }

   412 

   413     static class StringContainer1 {

   414 

   415         public char[] value = new char[5];

   416 

   417         StringContainer1() {

   418             value[0] = 'T';

   419             value[1] = 'e';

   420             value[2] = 's';

   421             value[3] = 't';

   422             value[4] = ' ';

   423 

   424         }

   425     }

   426 

   427     static class StringContainer2 {

   428 

   429         public char[] value = new char[6];

   430 

   431         StringContainer2() {

   432             value[0] = 'S';

   433             value[1] = 't';

   434             value[2] = 'r';

   435             value[3] = 'i';

   436             value[4] = 'n';

   437             value[5] = 'g';

   438         }

   439     }

   440 

   441     static class ConstantContainer {

   442 

   443         public final Object a = new Object();

   444         public final Object b = new Object();

   445 

   446         ConstantContainer() {

   447 

   448         }

   449     }

   450 }