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test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestBoolean.java

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  23 
  24 /*
  25  * @test
  26  * @bug 8143628
  27  * @summary Test unsafe access for boolean
  28  * @modules java.base/jdk.internal.misc
  29  * @run testng/othervm -Diters=100   -Xint                   JdkInternalMiscUnsafeAccessTestBoolean
  30  * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 JdkInternalMiscUnsafeAccessTestBoolean
  31  * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  JdkInternalMiscUnsafeAccessTestBoolean
  32  * @run testng/othervm -Diters=20000                         JdkInternalMiscUnsafeAccessTestBoolean
  33  */
  34 
  35 import org.testng.annotations.Test;
  36 
  37 import java.lang.reflect.Field;
  38 
  39 import static org.testng.Assert.*;
  40 
  41 public class JdkInternalMiscUnsafeAccessTestBoolean {
  42     static final int ITERS = Integer.getInteger("iters", 1);

  43 
  44     static final jdk.internal.misc.Unsafe UNSAFE;
  45 
  46     static final long V_OFFSET;
  47 
  48     static final Object STATIC_V_BASE;
  49 
  50     static final long STATIC_V_OFFSET;
  51 
  52     static int ARRAY_OFFSET;
  53 
  54     static int ARRAY_SHIFT;
  55 
  56     static {
  57         try {
  58             Field f = jdk.internal.misc.Unsafe.class.getDeclaredField("theUnsafe");
  59             f.setAccessible(true);
  60             UNSAFE = (jdk.internal.misc.Unsafe) f.get(null);
  61         } catch (Exception e) {
  62             throw new RuntimeException("Unable to get Unsafe instance.", e);


 130 
 131         // Lazy
 132         {
 133             UNSAFE.putBooleanRelease(base, offset, true);
 134             boolean x = UNSAFE.getBooleanAcquire(base, offset);
 135             assertEquals(x, true, "putRelease boolean value");
 136         }
 137 
 138         // Opaque
 139         {
 140             UNSAFE.putBooleanOpaque(base, offset, false);
 141             boolean x = UNSAFE.getBooleanOpaque(base, offset);
 142             assertEquals(x, false, "putOpaque boolean value");
 143         }
 144 
 145 
 146 
 147     }
 148 
 149 }
 150 
 151 


  23 
  24 /*
  25  * @test
  26  * @bug 8143628
  27  * @summary Test unsafe access for boolean
  28  * @modules java.base/jdk.internal.misc
  29  * @run testng/othervm -Diters=100   -Xint                   JdkInternalMiscUnsafeAccessTestBoolean
  30  * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 JdkInternalMiscUnsafeAccessTestBoolean
  31  * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  JdkInternalMiscUnsafeAccessTestBoolean
  32  * @run testng/othervm -Diters=20000                         JdkInternalMiscUnsafeAccessTestBoolean
  33  */
  34 
  35 import org.testng.annotations.Test;
  36 
  37 import java.lang.reflect.Field;
  38 
  39 import static org.testng.Assert.*;
  40 
  41 public class JdkInternalMiscUnsafeAccessTestBoolean {
  42     static final int ITERS = Integer.getInteger("iters", 1);
  43     static final int WEAK_ATTEMPTS = Integer.getInteger("weakAttempts", 10);
  44 
  45     static final jdk.internal.misc.Unsafe UNSAFE;
  46 
  47     static final long V_OFFSET;
  48 
  49     static final Object STATIC_V_BASE;
  50 
  51     static final long STATIC_V_OFFSET;
  52 
  53     static int ARRAY_OFFSET;
  54 
  55     static int ARRAY_SHIFT;
  56 
  57     static {
  58         try {
  59             Field f = jdk.internal.misc.Unsafe.class.getDeclaredField("theUnsafe");
  60             f.setAccessible(true);
  61             UNSAFE = (jdk.internal.misc.Unsafe) f.get(null);
  62         } catch (Exception e) {
  63             throw new RuntimeException("Unable to get Unsafe instance.", e);


 131 
 132         // Lazy
 133         {
 134             UNSAFE.putBooleanRelease(base, offset, true);
 135             boolean x = UNSAFE.getBooleanAcquire(base, offset);
 136             assertEquals(x, true, "putRelease boolean value");
 137         }
 138 
 139         // Opaque
 140         {
 141             UNSAFE.putBooleanOpaque(base, offset, false);
 142             boolean x = UNSAFE.getBooleanOpaque(base, offset);
 143             assertEquals(x, false, "putOpaque boolean value");
 144         }
 145 
 146 
 147 
 148     }
 149 
 150 }

 151 
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