src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/ea/UnsafeCompareAndSwapVirtualizationTest.java
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package org.graalvm.compiler.core.test.ea;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.atomic.AtomicReferenceArray;
import org.graalvm.compiler.nodes.java.LogicCompareAndSwapNode;
import org.junit.Test;
import jdk.vm.ci.meta.JavaConstant;
public class UnsafeCompareAndSwapVirtualizationTest extends EATestBase {
private static Object obj1 = new Object();
private static Object obj2 = new Object();
private static final Object OBJ1 = new Object();
public static boolean bothVirtualNoMatch() {
AtomicReference<Object> a = new AtomicReference<>();
return a.compareAndSet(new Object(), new Object());
}
@Test
public void bothVirtualNoMatchTest() {
testEscapeAnalysis("bothVirtualNoMatch", JavaConstant.INT_0, true);
assertTrue(graph.getNodes().filter(LogicCompareAndSwapNode.class).isEmpty());
}
public static boolean bothVirtualMatch() {
Object expect = new Object();
AtomicReference<Object> a = new AtomicReference<>(expect);
return a.compareAndSet(expect, new Object());
}
@Test
public void bothVirtualMatchTest() {
testEscapeAnalysis("bothVirtualMatch", JavaConstant.INT_1, true);
assertTrue(graph.getNodes().filter(LogicCompareAndSwapNode.class).isEmpty());
}
public static boolean expectedVirtualMatch() {
Object o = new Object();
AtomicReference<Object> a = new AtomicReference<>(o);
return a.compareAndSet(o, obj1);
}
@Test
public void expectedVirtualMatchTest() {
testEscapeAnalysis("expectedVirtualMatch", JavaConstant.INT_1, true);
assertTrue(graph.getNodes().filter(LogicCompareAndSwapNode.class).isEmpty());
}
public static boolean expectedVirtualNoMatch() {
Object o = new Object();
AtomicReference<Object> a = new AtomicReference<>();
return a.compareAndSet(o, obj1);
}
@Test
public void expectedVirtualNoMatchTest() {
testEscapeAnalysis("expectedVirtualNoMatch", JavaConstant.INT_0, true);
assertTrue(graph.getNodes().filter(LogicCompareAndSwapNode.class).isEmpty());
}
public static boolean bothNonVirtualNoMatch() {
AtomicReference<Object> a = new AtomicReference<>();
return a.compareAndSet(OBJ1, obj2);
}
@Test
public void bothNonVirtualNoMatchTest() {
testEscapeAnalysis("bothNonVirtualNoMatch", JavaConstant.INT_0, true);
assertTrue(graph.getNodes().filter(LogicCompareAndSwapNode.class).isEmpty());
}
public static boolean bothNonVirtualMatch() {
AtomicReference<Object> a = new AtomicReference<>(OBJ1);
return a.compareAndSet(OBJ1, obj2);
}
@Test
public void bothNonVirtualMatchTest() {
testEscapeAnalysis("bothNonVirtualMatch", JavaConstant.INT_1, true);
assertTrue(graph.getNodes().filter(LogicCompareAndSwapNode.class).isEmpty());
}
public static boolean onlyInitialValueVirtualNoMatch() {
AtomicReference<Object> a = new AtomicReference<>(new Object());
return a.compareAndSet(obj1, obj2);
}
@Test
public void onlyInitialValueVirtualNoMatchTest() {
testEscapeAnalysis("onlyInitialValueVirtualNoMatch", JavaConstant.INT_0, true);
assertTrue(graph.getNodes().filter(LogicCompareAndSwapNode.class).isEmpty());
}
public static boolean onlyInitialValueVirtualMatch() {
Object o = new Object();
AtomicReference<Object> a = new AtomicReference<>(o);
return a.compareAndSet(o, obj2);
}
@Test
public void onlyInitialValueVirtualMatchTest() {
testEscapeAnalysis("onlyInitialValueVirtualMatch", JavaConstant.INT_1, true);
assertTrue(graph.getNodes().filter(LogicCompareAndSwapNode.class).isEmpty());
}
public static boolean bothVirtualNoMatchArray() {
AtomicReferenceArray<Object> array = new AtomicReferenceArray<>(1);
return array.compareAndSet(0, new Object(), new Object());
}
@Test
public void bothVirtualNoMatchArrayTest() {
testEscapeAnalysis("bothVirtualNoMatchArray", JavaConstant.INT_0, true);
assertTrue(graph.getNodes().filter(LogicCompareAndSwapNode.class).isEmpty());
}
}