23
24 /*
25 * @test
26 * @bug 8143628
27 * @summary Test unsafe access for float
28 * @modules java.base/jdk.internal.misc
29 * @run testng/othervm -Diters=100 -Xint JdkInternalMiscUnsafeAccessTestFloat
30 * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 JdkInternalMiscUnsafeAccessTestFloat
31 * @run testng/othervm -Diters=20000 -XX:-TieredCompilation JdkInternalMiscUnsafeAccessTestFloat
32 * @run testng/othervm -Diters=20000 JdkInternalMiscUnsafeAccessTestFloat
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 JdkInternalMiscUnsafeAccessTestFloat {
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);
167 // Opaque
168 {
169 UNSAFE.putFloatOpaque(base, offset, 2.0f);
170 float x = UNSAFE.getFloatOpaque(base, offset);
171 assertEquals(x, 2.0f, "putOpaque float value");
172 }
173
174
175
176 }
177
178 static void testAccess(long address) {
179 // Plain
180 {
181 UNSAFE.putFloat(address, 1.0f);
182 float x = UNSAFE.getFloat(address);
183 assertEquals(x, 1.0f, "set float value");
184 }
185 }
186 }
187
188
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23
24 /*
25 * @test
26 * @bug 8143628
27 * @summary Test unsafe access for float
28 * @modules java.base/jdk.internal.misc
29 * @run testng/othervm -Diters=100 -Xint JdkInternalMiscUnsafeAccessTestFloat
30 * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 JdkInternalMiscUnsafeAccessTestFloat
31 * @run testng/othervm -Diters=20000 -XX:-TieredCompilation JdkInternalMiscUnsafeAccessTestFloat
32 * @run testng/othervm -Diters=20000 JdkInternalMiscUnsafeAccessTestFloat
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 JdkInternalMiscUnsafeAccessTestFloat {
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);
168 // Opaque
169 {
170 UNSAFE.putFloatOpaque(base, offset, 2.0f);
171 float x = UNSAFE.getFloatOpaque(base, offset);
172 assertEquals(x, 2.0f, "putOpaque float value");
173 }
174
175
176
177 }
178
179 static void testAccess(long address) {
180 // Plain
181 {
182 UNSAFE.putFloat(address, 1.0f);
183 float x = UNSAFE.getFloat(address);
184 assertEquals(x, 1.0f, "set float value");
185 }
186 }
187 }
188
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