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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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13  * accompanied this code).
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23 
24 
25 package org.graalvm.compiler.replacements.jdk12.test;
26 
27 import org.graalvm.compiler.api.test.Graal;
28 import org.graalvm.compiler.replacements.test.MethodSubstitutionTest;
29 import org.graalvm.compiler.runtime.RuntimeProvider;
30 import org.graalvm.compiler.test.AddExports;
31 import org.junit.Test;
32 
33 import jdk.vm.ci.aarch64.AArch64;
34 import jdk.vm.ci.amd64.AMD64;
35 import jdk.vm.ci.code.TargetDescription;
36 
37 /**
38  * As of JDK 12 {@code jdk.internal.misc.Unsafe::.*Object()} methods were renamed to
39  * {@code .*Reference()}.
40  *
41  * @see "https://bugs.openjdk.java.net/browse/JDK-8207146"
42  */
43 @AddExports("java.base/jdk.internal.misc")
44 public class UnsafeObjectReplacementsTest extends MethodSubstitutionTest {
45 
46     static class Container {
47         public volatile Object objectField = dummyValue;
48     }
49 
50     static jdk.internal.misc.Unsafe unsafe = jdk.internal.misc.Unsafe.getUnsafe();
51     static Container dummyValue = new Container();
52     static Container newDummyValue = new Container();
53     static long objectOffset;
54 
55     static {
56         try {
57             objectOffset = unsafe.objectFieldOffset(Container.class.getDeclaredField("objectField"));
58         } catch (NoSuchFieldException e) {
59             throw new RuntimeException(e);
60         }
61     }
62 
unsafeCompareAndExchangeReference()63     public static Object unsafeCompareAndExchangeReference() {
64         Container container = new Container();
65         return unsafe.compareAndExchangeReference(container, objectOffset, dummyValue, newDummyValue);
66     }
67 
68     @Test
testCompareAndSet()69     public void testCompareAndSet() {
70         TargetDescription target = Graal.getRequiredCapability(RuntimeProvider.class).getHostBackend().getTarget();
71         if (target.arch instanceof AMD64) {
72             testGraph("unsafeCompareAndExchangeReference");
73         }
74         test("unsafeCompareAndExchangeReference");
75     }
76 
unsafeGetAndSetReference()77     public static Object unsafeGetAndSetReference() {
78         Container container = new Container();
79         container.objectField = null;
80         Container other = new Container();
81         return unsafe.getAndSetReference(container, objectOffset, other);
82     }
83 
84     @Test
testGetAndSet()85     public void testGetAndSet() {
86         TargetDescription target = Graal.getRequiredCapability(RuntimeProvider.class).getHostBackend().getTarget();
87         if (target.arch instanceof AMD64 || target.arch instanceof AArch64) {
88             testGraph("unsafeGetAndSetReference");
89         }
90         test("unsafeGetAndSetReference");
91     }
92 
unsafeGetPutReference()93     public static Object unsafeGetPutReference() {
94         Container container = new Container();
95         unsafe.putReference(container, objectOffset, "Hello there");
96         return unsafe.getReference(container, objectOffset);
97     }
98 
unsafeGetPutReferenceOpaque()99     public static Object unsafeGetPutReferenceOpaque() {
100         Container container = new Container();
101         unsafe.putReferenceOpaque(container, objectOffset, "Hello there");
102         return unsafe.getReferenceOpaque(container, objectOffset);
103     }
104 
unsafeGetPutReferenceRA()105     public static Object unsafeGetPutReferenceRA() {
106         Container container = new Container();
107         unsafe.putReferenceRelease(container, objectOffset, "Hello there");
108         return unsafe.getReferenceAcquire(container, objectOffset);
109     }
110 
unsafeGetPutReferenceVolatile()111     public static Object unsafeGetPutReferenceVolatile() {
112         Container container = new Container();
113         unsafe.putReferenceVolatile(container, objectOffset, "Hello there");
114         return unsafe.getReferenceVolatile(container, objectOffset);
115     }
116 
117     @Test
testUnsafeGetPutPlain()118     public void testUnsafeGetPutPlain() {
119         testGraph("unsafeGetPutReference");
120         test("unsafeGetPutReference");
121     }
122 
123     @Test
testUnsafeGetPutOpaque()124     public void testUnsafeGetPutOpaque() {
125         testGraph("unsafeGetPutReferenceOpaque");
126         test("unsafeGetPutReferenceOpaque");
127     }
128 
129     @Test
testUnsafeGetPutReleaseAcquire()130     public void testUnsafeGetPutReleaseAcquire() {
131         testGraph("unsafeGetPutReferenceRA");
132         test("unsafeGetPutReferenceRA");
133     }
134 
135     @Test
testUnsafeGetPutVolatile()136     public void testUnsafeGetPutVolatile() {
137         testGraph("unsafeGetPutReferenceVolatile");
138         test("unsafeGetPutReferenceVolatile");
139     }
140 }
141