changeset 35103:d19354bcbfa6

8143628: Fork sun.misc.Unsafe and jdk.internal.misc.Unsafe native method tables Reviewed-by: shade, dholmes, alanb, chegar, mchung, roland
author psandoz
date Wed, 09 Dec 2015 14:54:40 +0100
parents c5f050e1f982
children 8c21f17b63e0
files hotspot/src/share/vm/prims/nativeLookup.cpp hotspot/src/share/vm/prims/unsafe.cpp hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestBoolean.java hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestByte.java hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestChar.java hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestDouble.java hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestFloat.java hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestInt.java hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestLong.java hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestObject.java hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestShort.java hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestBoolean.java hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestByte.java hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestChar.java hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestDouble.java hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestFloat.java hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestInt.java hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestLong.java hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestObject.java hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestShort.java hotspot/test/compiler/unsafe/X-UnsafeAccessTest.java.template hotspot/test/compiler/unsafe/generate-unsafe-access-tests.sh
diffstat 22 files changed, 3690 insertions(+), 9 deletions(-) [+]
line wrap: on
line diff
--- a/hotspot/src/share/vm/prims/nativeLookup.cpp	Wed Dec 09 11:06:39 2015 +0100
+++ b/hotspot/src/share/vm/prims/nativeLookup.cpp	Wed Dec 09 14:54:40 2015 +0100
@@ -107,7 +107,8 @@
 }
 
 extern "C" {
-  void JNICALL JVM_RegisterUnsafeMethods(JNIEnv *env, jclass unsafecls);
+  void JNICALL JVM_RegisterJDKInternalMiscUnsafeMethods(JNIEnv *env, jclass unsafecls);
+  void JNICALL JVM_RegisterSunMiscUnsafeMethods(JNIEnv *env, jclass unsafecls);
   void JNICALL JVM_RegisterMethodHandleMethods(JNIEnv *env, jclass unsafecls);
   void JNICALL JVM_RegisterPerfMethods(JNIEnv *env, jclass perfclass);
   void JNICALL JVM_RegisterWhiteBoxMethods(JNIEnv *env, jclass wbclass);
@@ -121,8 +122,8 @@
 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &f)
 
 static JNINativeMethod lookup_special_native_methods[] = {
-  { CC"Java_jdk_internal_misc_Unsafe_registerNatives",             NULL, FN_PTR(JVM_RegisterUnsafeMethods)       },
-  { CC"Java_sun_misc_Unsafe_registerNatives",                      NULL, FN_PTR(JVM_RegisterUnsafeMethods)       },
+  { CC"Java_jdk_internal_misc_Unsafe_registerNatives",             NULL, FN_PTR(JVM_RegisterJDKInternalMiscUnsafeMethods) },
+  { CC"Java_sun_misc_Unsafe_registerNatives",                      NULL, FN_PTR(JVM_RegisterSunMiscUnsafeMethods)         },
   { CC"Java_java_lang_invoke_MethodHandleNatives_registerNatives", NULL, FN_PTR(JVM_RegisterMethodHandleMethods) },
   { CC"Java_sun_misc_Perf_registerNatives",                        NULL, FN_PTR(JVM_RegisterPerfMethods)         },
   { CC"Java_sun_hotspot_WhiteBox_registerNatives",                 NULL, FN_PTR(JVM_RegisterWhiteBoxMethods)     },
--- a/hotspot/src/share/vm/prims/unsafe.cpp	Wed Dec 09 11:06:39 2015 +0100
+++ b/hotspot/src/share/vm/prims/unsafe.cpp	Wed Dec 09 14:54:40 2015 +0100
@@ -1227,8 +1227,76 @@
     {CC "put" #Byte,         CC "(" ADR#B ")V",       FN_PTR(Unsafe_SetNative##Byte)}
 
 
+static JNINativeMethod sun_misc_Unsafe_methods[] = {
+    {CC "getObject",        CC "(" OBJ "J)" OBJ "",   FN_PTR(Unsafe_GetObject)},
+    {CC "putObject",        CC "(" OBJ "J" OBJ ")V",  FN_PTR(Unsafe_SetObject)},
+    {CC "getObjectVolatile",CC "(" OBJ "J)" OBJ "",   FN_PTR(Unsafe_GetObjectVolatile)},
+    {CC "putObjectVolatile",CC "(" OBJ "J" OBJ ")V",  FN_PTR(Unsafe_SetObjectVolatile)},
 
-static JNINativeMethod methods[] = {
+    {CC "getUncompressedObject", CC "(" ADR ")" OBJ,  FN_PTR(Unsafe_GetUncompressedObject)},
+    {CC "getJavaMirror",         CC "(" ADR ")" CLS,  FN_PTR(Unsafe_GetJavaMirror)},
+    {CC "getKlassPointer",       CC "(" OBJ ")" ADR,  FN_PTR(Unsafe_GetKlassPointer)},
+
+    DECLARE_GETPUTOOP(Boolean, Z),
+    DECLARE_GETPUTOOP(Byte, B),
+    DECLARE_GETPUTOOP(Short, S),
+    DECLARE_GETPUTOOP(Char, C),
+    DECLARE_GETPUTOOP(Int, I),
+    DECLARE_GETPUTOOP(Long, J),
+    DECLARE_GETPUTOOP(Float, F),
+    DECLARE_GETPUTOOP(Double, D),
+
+    DECLARE_GETPUTNATIVE(Byte, B),
+    DECLARE_GETPUTNATIVE(Short, S),
+    DECLARE_GETPUTNATIVE(Char, C),
+    DECLARE_GETPUTNATIVE(Int, I),
+    DECLARE_GETPUTNATIVE(Long, J),
+    DECLARE_GETPUTNATIVE(Float, F),
+    DECLARE_GETPUTNATIVE(Double, D),
+
+    {CC "getAddress",         CC "(" ADR ")" ADR,        FN_PTR(Unsafe_GetNativeAddress)},
+    {CC "putAddress",         CC "(" ADR "" ADR ")V",    FN_PTR(Unsafe_SetNativeAddress)},
+
+    {CC "allocateMemory",     CC "(J)" ADR,              FN_PTR(Unsafe_AllocateMemory)},
+    {CC "reallocateMemory",   CC "(" ADR "J)" ADR,       FN_PTR(Unsafe_ReallocateMemory)},
+    {CC "freeMemory",         CC "(" ADR ")V",           FN_PTR(Unsafe_FreeMemory)},
+
+    {CC "objectFieldOffset",  CC "(" FLD ")J",           FN_PTR(Unsafe_ObjectFieldOffset)},
+    {CC "staticFieldOffset",  CC "(" FLD ")J",           FN_PTR(Unsafe_StaticFieldOffset)},
+    {CC "staticFieldBase",    CC "(" FLD ")" OBJ,        FN_PTR(Unsafe_StaticFieldBaseFromField)},
+    {CC "ensureClassInitialized",CC "(" CLS ")V",        FN_PTR(Unsafe_EnsureClassInitialized)},
+    {CC "arrayBaseOffset",    CC "(" CLS ")I",           FN_PTR(Unsafe_ArrayBaseOffset)},
+    {CC "arrayIndexScale",    CC "(" CLS ")I",           FN_PTR(Unsafe_ArrayIndexScale)},
+    {CC "addressSize",        CC "()I",                  FN_PTR(Unsafe_AddressSize)},
+    {CC "pageSize",           CC "()I",                  FN_PTR(Unsafe_PageSize)},
+
+    {CC "defineClass",        CC "(" DC_Args ")" CLS,    FN_PTR(Unsafe_DefineClass)},
+    {CC "allocateInstance",   CC "(" CLS ")" OBJ,        FN_PTR(Unsafe_AllocateInstance)},
+    {CC "throwException",     CC "(" THR ")V",           FN_PTR(Unsafe_ThrowException)},
+    {CC "compareAndSwapObject", CC "(" OBJ "J" OBJ "" OBJ ")Z", FN_PTR(Unsafe_CompareAndSwapObject)},
+    {CC "compareAndSwapInt",  CC "(" OBJ "J""I""I"")Z",  FN_PTR(Unsafe_CompareAndSwapInt)},
+    {CC "compareAndSwapLong", CC "(" OBJ "J""J""J"")Z",  FN_PTR(Unsafe_CompareAndSwapLong)},
+    {CC "putOrderedObject",   CC "(" OBJ "J" OBJ ")V",   FN_PTR(Unsafe_SetOrderedObject)},
+    {CC "putOrderedInt",      CC "(" OBJ "JI)V",         FN_PTR(Unsafe_SetOrderedInt)},
+    {CC "putOrderedLong",     CC "(" OBJ "JJ)V",         FN_PTR(Unsafe_SetOrderedLong)},
+    {CC "park",               CC "(ZJ)V",                FN_PTR(Unsafe_Park)},
+    {CC "unpark",             CC "(" OBJ ")V",           FN_PTR(Unsafe_Unpark)},
+
+    {CC "getLoadAverage",     CC "([DI)I",               FN_PTR(Unsafe_Loadavg)},
+
+    {CC "copyMemory",         CC "(" OBJ "J" OBJ "JJ)V", FN_PTR(Unsafe_CopyMemory)},
+    {CC "setMemory",          CC "(" OBJ "JJB)V",        FN_PTR(Unsafe_SetMemory)},
+
+    {CC "defineAnonymousClass", CC "(" DAC_Args ")" CLS, FN_PTR(Unsafe_DefineAnonymousClass)},
+
+    {CC "shouldBeInitialized",CC "(" CLS ")Z",           FN_PTR(Unsafe_ShouldBeInitialized)},
+
+    {CC "loadFence",          CC "()V",                  FN_PTR(Unsafe_LoadFence)},
+    {CC "storeFence",         CC "()V",                  FN_PTR(Unsafe_StoreFence)},
+    {CC "fullFence",          CC "()V",                  FN_PTR(Unsafe_FullFence)},
+};
+
+static JNINativeMethod jdk_internal_misc_Unsafe_methods[] = {
     {CC "getObject",        CC "(" OBJ "J)" OBJ "",   FN_PTR(Unsafe_GetObject)},
     {CC "putObject",        CC "(" OBJ "J" OBJ ")V",  FN_PTR(Unsafe_SetObject)},
     {CC "getObjectVolatile",CC "(" OBJ "J)" OBJ "",   FN_PTR(Unsafe_GetObjectVolatile)},
@@ -1316,17 +1384,27 @@
 #undef DECLARE_GETPUTNATIVE
 
 
-// This one function is exported, used by NativeLookup.
+// These two functions are exported, used by NativeLookup.
 // The Unsafe_xxx functions above are called only from the interpreter.
 // The optimizer looks at names and signatures to recognize
 // individual functions.
 
-JVM_ENTRY(void, JVM_RegisterUnsafeMethods(JNIEnv *env, jclass unsafeclass))
-  UnsafeWrapper("JVM_RegisterUnsafeMethods");
+JVM_ENTRY(void, JVM_RegisterSunMiscUnsafeMethods(JNIEnv *env, jclass unsafeclass))
+  UnsafeWrapper("JVM_RegisterSunMiscUnsafeMethods");
   {
     ThreadToNativeFromVM ttnfv(thread);
 
-    int ok = env->RegisterNatives(unsafeclass, methods, sizeof(methods)/sizeof(JNINativeMethod));
-    guarantee(ok == 0, "register unsafe natives");
+    int ok = env->RegisterNatives(unsafeclass, sun_misc_Unsafe_methods, sizeof(sun_misc_Unsafe_methods)/sizeof(JNINativeMethod));
+    guarantee(ok == 0, "register sun.misc.Unsafe natives");
   }
 JVM_END
+
+JVM_ENTRY(void, JVM_RegisterJDKInternalMiscUnsafeMethods(JNIEnv *env, jclass unsafeclass))
+  UnsafeWrapper("JVM_RegisterJDKInternalMiscUnsafeMethods");
+  {
+    ThreadToNativeFromVM ttnfv(thread);
+
+    int ok = env->RegisterNatives(unsafeclass, jdk_internal_misc_Unsafe_methods, sizeof(jdk_internal_misc_Unsafe_methods)/sizeof(JNINativeMethod));
+    guarantee(ok == 0, "register jdk.internal.misc.Unsafe natives");
+  }
+JVM_END
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestBoolean.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for boolean
+ * @modules java.base/jdk.internal.misc
+ * @run testng/othervm -Diters=100   -Xint                   JdkInternalMiscUnsafeAccessTestBoolean
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 JdkInternalMiscUnsafeAccessTestBoolean
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  JdkInternalMiscUnsafeAccessTestBoolean
+ * @run testng/othervm -Diters=20000                         JdkInternalMiscUnsafeAccessTestBoolean
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class JdkInternalMiscUnsafeAccessTestBoolean {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final jdk.internal.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = jdk.internal.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (jdk.internal.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = JdkInternalMiscUnsafeAccessTestBoolean.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = JdkInternalMiscUnsafeAccessTestBoolean.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(boolean[].class);
+        int ascale = UNSAFE.arrayIndexScale(boolean[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static boolean static_v;
+
+    boolean v;
+
+    @Test
+    public void testFieldInstance() {
+        JdkInternalMiscUnsafeAccessTestBoolean t = new JdkInternalMiscUnsafeAccessTestBoolean();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        boolean[] array = new boolean[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putBoolean(base, offset, true);
+            boolean x = UNSAFE.getBoolean(base, offset);
+            assertEquals(x, true, "set boolean value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putBooleanVolatile(base, offset, false);
+            boolean x = UNSAFE.getBooleanVolatile(base, offset);
+            assertEquals(x, false, "putVolatile boolean value");
+        }
+
+
+
+
+    }
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestByte.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for byte
+ * @modules java.base/jdk.internal.misc
+ * @run testng/othervm -Diters=100   -Xint                   JdkInternalMiscUnsafeAccessTestByte
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 JdkInternalMiscUnsafeAccessTestByte
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  JdkInternalMiscUnsafeAccessTestByte
+ * @run testng/othervm -Diters=20000                         JdkInternalMiscUnsafeAccessTestByte
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class JdkInternalMiscUnsafeAccessTestByte {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final jdk.internal.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = jdk.internal.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (jdk.internal.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = JdkInternalMiscUnsafeAccessTestByte.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = JdkInternalMiscUnsafeAccessTestByte.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(byte[].class);
+        int ascale = UNSAFE.arrayIndexScale(byte[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static byte static_v;
+
+    byte v;
+
+    @Test
+    public void testFieldInstance() {
+        JdkInternalMiscUnsafeAccessTestByte t = new JdkInternalMiscUnsafeAccessTestByte();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        byte[] array = new byte[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putByte(base, offset, (byte)1);
+            byte x = UNSAFE.getByte(base, offset);
+            assertEquals(x, (byte)1, "set byte value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putByteVolatile(base, offset, (byte)2);
+            byte x = UNSAFE.getByteVolatile(base, offset);
+            assertEquals(x, (byte)2, "putVolatile byte value");
+        }
+
+
+
+
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putByte(address, (byte)1);
+            byte x = UNSAFE.getByte(address);
+            assertEquals(x, (byte)1, "set byte value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestChar.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,190 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for char
+ * @modules java.base/jdk.internal.misc
+ * @run testng/othervm -Diters=100   -Xint                   JdkInternalMiscUnsafeAccessTestChar
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 JdkInternalMiscUnsafeAccessTestChar
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  JdkInternalMiscUnsafeAccessTestChar
+ * @run testng/othervm -Diters=20000                         JdkInternalMiscUnsafeAccessTestChar
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class JdkInternalMiscUnsafeAccessTestChar {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final jdk.internal.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = jdk.internal.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (jdk.internal.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = JdkInternalMiscUnsafeAccessTestChar.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = JdkInternalMiscUnsafeAccessTestChar.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(char[].class);
+        int ascale = UNSAFE.arrayIndexScale(char[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static char static_v;
+
+    char v;
+
+    @Test
+    public void testFieldInstance() {
+        JdkInternalMiscUnsafeAccessTestChar t = new JdkInternalMiscUnsafeAccessTestChar();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        char[] array = new char[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putChar(base, offset, 'a');
+            char x = UNSAFE.getChar(base, offset);
+            assertEquals(x, 'a', "set char value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putCharVolatile(base, offset, 'b');
+            char x = UNSAFE.getCharVolatile(base, offset);
+            assertEquals(x, 'b', "putVolatile char value");
+        }
+
+
+        // Unaligned
+        {
+            UNSAFE.putCharUnaligned(base, offset, 'b');
+            char x = UNSAFE.getCharUnaligned(base, offset);
+            assertEquals(x, 'b', "putUnaligned char value");
+        }
+
+        {
+            UNSAFE.putCharUnaligned(base, offset, 'a', true);
+            char x = UNSAFE.getCharUnaligned(base, offset, true);
+            assertEquals(x, 'a', "putUnaligned big endian char value");
+        }
+
+        {
+            UNSAFE.putCharUnaligned(base, offset, 'b', false);
+            char x = UNSAFE.getCharUnaligned(base, offset, false);
+            assertEquals(x, 'b', "putUnaligned little endian char value");
+        }
+
+
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putChar(address, 'a');
+            char x = UNSAFE.getChar(address);
+            assertEquals(x, 'a', "set char value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestDouble.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for double
+ * @modules java.base/jdk.internal.misc
+ * @run testng/othervm -Diters=100   -Xint                   JdkInternalMiscUnsafeAccessTestDouble
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 JdkInternalMiscUnsafeAccessTestDouble
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  JdkInternalMiscUnsafeAccessTestDouble
+ * @run testng/othervm -Diters=20000                         JdkInternalMiscUnsafeAccessTestDouble
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class JdkInternalMiscUnsafeAccessTestDouble {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final jdk.internal.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = jdk.internal.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (jdk.internal.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = JdkInternalMiscUnsafeAccessTestDouble.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = JdkInternalMiscUnsafeAccessTestDouble.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(double[].class);
+        int ascale = UNSAFE.arrayIndexScale(double[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static double static_v;
+
+    double v;
+
+    @Test
+    public void testFieldInstance() {
+        JdkInternalMiscUnsafeAccessTestDouble t = new JdkInternalMiscUnsafeAccessTestDouble();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        double[] array = new double[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putDouble(base, offset, 1.0d);
+            double x = UNSAFE.getDouble(base, offset);
+            assertEquals(x, 1.0d, "set double value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putDoubleVolatile(base, offset, 2.0d);
+            double x = UNSAFE.getDoubleVolatile(base, offset);
+            assertEquals(x, 2.0d, "putVolatile double value");
+        }
+
+
+
+
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putDouble(address, 1.0d);
+            double x = UNSAFE.getDouble(address);
+            assertEquals(x, 1.0d, "set double value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestFloat.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for float
+ * @modules java.base/jdk.internal.misc
+ * @run testng/othervm -Diters=100   -Xint                   JdkInternalMiscUnsafeAccessTestFloat
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 JdkInternalMiscUnsafeAccessTestFloat
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  JdkInternalMiscUnsafeAccessTestFloat
+ * @run testng/othervm -Diters=20000                         JdkInternalMiscUnsafeAccessTestFloat
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class JdkInternalMiscUnsafeAccessTestFloat {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final jdk.internal.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = jdk.internal.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (jdk.internal.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = JdkInternalMiscUnsafeAccessTestFloat.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = JdkInternalMiscUnsafeAccessTestFloat.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(float[].class);
+        int ascale = UNSAFE.arrayIndexScale(float[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static float static_v;
+
+    float v;
+
+    @Test
+    public void testFieldInstance() {
+        JdkInternalMiscUnsafeAccessTestFloat t = new JdkInternalMiscUnsafeAccessTestFloat();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        float[] array = new float[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putFloat(base, offset, 1.0f);
+            float x = UNSAFE.getFloat(base, offset);
+            assertEquals(x, 1.0f, "set float value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putFloatVolatile(base, offset, 2.0f);
+            float x = UNSAFE.getFloatVolatile(base, offset);
+            assertEquals(x, 2.0f, "putVolatile float value");
+        }
+
+
+
+
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putFloat(address, 1.0f);
+            float x = UNSAFE.getFloat(address);
+            assertEquals(x, 1.0f, "set float value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestInt.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,229 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for int
+ * @modules java.base/jdk.internal.misc
+ * @run testng/othervm -Diters=100   -Xint                   JdkInternalMiscUnsafeAccessTestInt
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 JdkInternalMiscUnsafeAccessTestInt
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  JdkInternalMiscUnsafeAccessTestInt
+ * @run testng/othervm -Diters=20000                         JdkInternalMiscUnsafeAccessTestInt
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class JdkInternalMiscUnsafeAccessTestInt {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final jdk.internal.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = jdk.internal.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (jdk.internal.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = JdkInternalMiscUnsafeAccessTestInt.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = JdkInternalMiscUnsafeAccessTestInt.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(int[].class);
+        int ascale = UNSAFE.arrayIndexScale(int[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static int static_v;
+
+    int v;
+
+    @Test
+    public void testFieldInstance() {
+        JdkInternalMiscUnsafeAccessTestInt t = new JdkInternalMiscUnsafeAccessTestInt();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        int[] array = new int[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putInt(base, offset, 1);
+            int x = UNSAFE.getInt(base, offset);
+            assertEquals(x, 1, "set int value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putIntVolatile(base, offset, 2);
+            int x = UNSAFE.getIntVolatile(base, offset);
+            assertEquals(x, 2, "putVolatile int value");
+        }
+
+        // Lazy
+        {
+            UNSAFE.putOrderedInt(base, offset, 1);
+            int x = UNSAFE.getIntVolatile(base, offset);
+            assertEquals(x, 1, "putRelease int value");
+        }
+
+        // Unaligned
+        {
+            UNSAFE.putIntUnaligned(base, offset, 2);
+            int x = UNSAFE.getIntUnaligned(base, offset);
+            assertEquals(x, 2, "putUnaligned int value");
+        }
+
+        {
+            UNSAFE.putIntUnaligned(base, offset, 1, true);
+            int x = UNSAFE.getIntUnaligned(base, offset, true);
+            assertEquals(x, 1, "putUnaligned big endian int value");
+        }
+
+        {
+            UNSAFE.putIntUnaligned(base, offset, 2, false);
+            int x = UNSAFE.getIntUnaligned(base, offset, false);
+            assertEquals(x, 2, "putUnaligned little endian int value");
+        }
+
+        UNSAFE.putInt(base, offset, 1);
+
+        // Compare
+        {
+            boolean r = UNSAFE.compareAndSwapInt(base, offset, 1, 2);
+            assertEquals(r, true, "success compareAndSwap int");
+            int x = UNSAFE.getInt(base, offset);
+            assertEquals(x, 2, "success compareAndSwap int value");
+        }
+
+        {
+            boolean r = UNSAFE.compareAndSwapInt(base, offset, 1, 3);
+            assertEquals(r, false, "failing compareAndSwap int");
+            int x = UNSAFE.getInt(base, offset);
+            assertEquals(x, 2, "failing compareAndSwap int value");
+        }
+
+        // Compare set and get
+        {
+            int o = UNSAFE.getAndSetInt(base, offset, 1);
+            assertEquals(o, 2, "getAndSet int");
+            int x = UNSAFE.getInt(base, offset);
+            assertEquals(x, 1, "getAndSet int value");
+        }
+
+        UNSAFE.putInt(base, offset, 1);
+
+        // get and add, add and get
+        {
+            int o = UNSAFE.getAndAddInt(base, offset, 2);
+            assertEquals(o, 1, "getAndAdd int");
+            int x = UNSAFE.getInt(base, offset);
+            assertEquals(x, 1 + 2, "weakCompareAndSwapRelease int");
+        }
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putInt(address, 1);
+            int x = UNSAFE.getInt(address);
+            assertEquals(x, 1, "set int value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestLong.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,229 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for long
+ * @modules java.base/jdk.internal.misc
+ * @run testng/othervm -Diters=100   -Xint                   JdkInternalMiscUnsafeAccessTestLong
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 JdkInternalMiscUnsafeAccessTestLong
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  JdkInternalMiscUnsafeAccessTestLong
+ * @run testng/othervm -Diters=20000                         JdkInternalMiscUnsafeAccessTestLong
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class JdkInternalMiscUnsafeAccessTestLong {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final jdk.internal.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = jdk.internal.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (jdk.internal.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = JdkInternalMiscUnsafeAccessTestLong.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = JdkInternalMiscUnsafeAccessTestLong.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(long[].class);
+        int ascale = UNSAFE.arrayIndexScale(long[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static long static_v;
+
+    long v;
+
+    @Test
+    public void testFieldInstance() {
+        JdkInternalMiscUnsafeAccessTestLong t = new JdkInternalMiscUnsafeAccessTestLong();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        long[] array = new long[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putLong(base, offset, 1L);
+            long x = UNSAFE.getLong(base, offset);
+            assertEquals(x, 1L, "set long value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putLongVolatile(base, offset, 2L);
+            long x = UNSAFE.getLongVolatile(base, offset);
+            assertEquals(x, 2L, "putVolatile long value");
+        }
+
+        // Lazy
+        {
+            UNSAFE.putOrderedLong(base, offset, 1L);
+            long x = UNSAFE.getLongVolatile(base, offset);
+            assertEquals(x, 1L, "putRelease long value");
+        }
+
+        // Unaligned
+        {
+            UNSAFE.putLongUnaligned(base, offset, 2L);
+            long x = UNSAFE.getLongUnaligned(base, offset);
+            assertEquals(x, 2L, "putUnaligned long value");
+        }
+
+        {
+            UNSAFE.putLongUnaligned(base, offset, 1L, true);
+            long x = UNSAFE.getLongUnaligned(base, offset, true);
+            assertEquals(x, 1L, "putUnaligned big endian long value");
+        }
+
+        {
+            UNSAFE.putLongUnaligned(base, offset, 2L, false);
+            long x = UNSAFE.getLongUnaligned(base, offset, false);
+            assertEquals(x, 2L, "putUnaligned little endian long value");
+        }
+
+        UNSAFE.putLong(base, offset, 1L);
+
+        // Compare
+        {
+            boolean r = UNSAFE.compareAndSwapLong(base, offset, 1L, 2L);
+            assertEquals(r, true, "success compareAndSwap long");
+            long x = UNSAFE.getLong(base, offset);
+            assertEquals(x, 2L, "success compareAndSwap long value");
+        }
+
+        {
+            boolean r = UNSAFE.compareAndSwapLong(base, offset, 1L, 3L);
+            assertEquals(r, false, "failing compareAndSwap long");
+            long x = UNSAFE.getLong(base, offset);
+            assertEquals(x, 2L, "failing compareAndSwap long value");
+        }
+
+        // Compare set and get
+        {
+            long o = UNSAFE.getAndSetLong(base, offset, 1L);
+            assertEquals(o, 2L, "getAndSet long");
+            long x = UNSAFE.getLong(base, offset);
+            assertEquals(x, 1L, "getAndSet long value");
+        }
+
+        UNSAFE.putLong(base, offset, 1L);
+
+        // get and add, add and get
+        {
+            long o = UNSAFE.getAndAddLong(base, offset, 2L);
+            assertEquals(o, 1L, "getAndAdd long");
+            long x = UNSAFE.getLong(base, offset);
+            assertEquals(x, 1L + 2L, "weakCompareAndSwapRelease long");
+        }
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putLong(address, 1L);
+            long x = UNSAFE.getLong(address);
+            assertEquals(x, 1L, "set long value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestObject.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for Object
+ * @modules java.base/jdk.internal.misc
+ * @run testng/othervm -Diters=100   -Xint                   JdkInternalMiscUnsafeAccessTestObject
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 JdkInternalMiscUnsafeAccessTestObject
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  JdkInternalMiscUnsafeAccessTestObject
+ * @run testng/othervm -Diters=20000                         JdkInternalMiscUnsafeAccessTestObject
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class JdkInternalMiscUnsafeAccessTestObject {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final jdk.internal.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = jdk.internal.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (jdk.internal.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = JdkInternalMiscUnsafeAccessTestObject.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = JdkInternalMiscUnsafeAccessTestObject.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(Object[].class);
+        int ascale = UNSAFE.arrayIndexScale(Object[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static Object static_v;
+
+    Object v;
+
+    @Test
+    public void testFieldInstance() {
+        JdkInternalMiscUnsafeAccessTestObject t = new JdkInternalMiscUnsafeAccessTestObject();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        Object[] array = new Object[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putObject(base, offset, "foo");
+            Object x = UNSAFE.getObject(base, offset);
+            assertEquals(x, "foo", "set Object value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putObjectVolatile(base, offset, "bar");
+            Object x = UNSAFE.getObjectVolatile(base, offset);
+            assertEquals(x, "bar", "putVolatile Object value");
+        }
+
+        // Lazy
+        {
+            UNSAFE.putOrderedObject(base, offset, "foo");
+            Object x = UNSAFE.getObjectVolatile(base, offset);
+            assertEquals(x, "foo", "putRelease Object value");
+        }
+
+
+        UNSAFE.putObject(base, offset, "foo");
+
+        // Compare
+        {
+            boolean r = UNSAFE.compareAndSwapObject(base, offset, "foo", "bar");
+            assertEquals(r, true, "success compareAndSwap Object");
+            Object x = UNSAFE.getObject(base, offset);
+            assertEquals(x, "bar", "success compareAndSwap Object value");
+        }
+
+        {
+            boolean r = UNSAFE.compareAndSwapObject(base, offset, "foo", "baz");
+            assertEquals(r, false, "failing compareAndSwap Object");
+            Object x = UNSAFE.getObject(base, offset);
+            assertEquals(x, "bar", "failing compareAndSwap Object value");
+        }
+
+        // Compare set and get
+        {
+            Object o = UNSAFE.getAndSetObject(base, offset, "foo");
+            assertEquals(o, "bar", "getAndSet Object");
+            Object x = UNSAFE.getObject(base, offset);
+            assertEquals(x, "foo", "getAndSet Object value");
+        }
+
+    }
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/JdkInternalMiscUnsafeAccessTestShort.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,190 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for short
+ * @modules java.base/jdk.internal.misc
+ * @run testng/othervm -Diters=100   -Xint                   JdkInternalMiscUnsafeAccessTestShort
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 JdkInternalMiscUnsafeAccessTestShort
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  JdkInternalMiscUnsafeAccessTestShort
+ * @run testng/othervm -Diters=20000                         JdkInternalMiscUnsafeAccessTestShort
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class JdkInternalMiscUnsafeAccessTestShort {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final jdk.internal.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = jdk.internal.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (jdk.internal.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = JdkInternalMiscUnsafeAccessTestShort.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = JdkInternalMiscUnsafeAccessTestShort.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(short[].class);
+        int ascale = UNSAFE.arrayIndexScale(short[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static short static_v;
+
+    short v;
+
+    @Test
+    public void testFieldInstance() {
+        JdkInternalMiscUnsafeAccessTestShort t = new JdkInternalMiscUnsafeAccessTestShort();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        short[] array = new short[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putShort(base, offset, (short)1);
+            short x = UNSAFE.getShort(base, offset);
+            assertEquals(x, (short)1, "set short value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putShortVolatile(base, offset, (short)2);
+            short x = UNSAFE.getShortVolatile(base, offset);
+            assertEquals(x, (short)2, "putVolatile short value");
+        }
+
+
+        // Unaligned
+        {
+            UNSAFE.putShortUnaligned(base, offset, (short)2);
+            short x = UNSAFE.getShortUnaligned(base, offset);
+            assertEquals(x, (short)2, "putUnaligned short value");
+        }
+
+        {
+            UNSAFE.putShortUnaligned(base, offset, (short)1, true);
+            short x = UNSAFE.getShortUnaligned(base, offset, true);
+            assertEquals(x, (short)1, "putUnaligned big endian short value");
+        }
+
+        {
+            UNSAFE.putShortUnaligned(base, offset, (short)2, false);
+            short x = UNSAFE.getShortUnaligned(base, offset, false);
+            assertEquals(x, (short)2, "putUnaligned little endian short value");
+        }
+
+
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putShort(address, (short)1);
+            short x = UNSAFE.getShort(address);
+            assertEquals(x, (short)1, "set short value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestBoolean.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for boolean
+ * @modules java.base/sun.misc
+ * @run testng/othervm -Diters=100   -Xint                   SunMiscUnsafeAccessTestBoolean
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 SunMiscUnsafeAccessTestBoolean
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  SunMiscUnsafeAccessTestBoolean
+ * @run testng/othervm -Diters=20000                         SunMiscUnsafeAccessTestBoolean
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class SunMiscUnsafeAccessTestBoolean {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final sun.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (sun.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = SunMiscUnsafeAccessTestBoolean.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = SunMiscUnsafeAccessTestBoolean.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(boolean[].class);
+        int ascale = UNSAFE.arrayIndexScale(boolean[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static boolean static_v;
+
+    boolean v;
+
+    @Test
+    public void testFieldInstance() {
+        SunMiscUnsafeAccessTestBoolean t = new SunMiscUnsafeAccessTestBoolean();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        boolean[] array = new boolean[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putBoolean(base, offset, true);
+            boolean x = UNSAFE.getBoolean(base, offset);
+            assertEquals(x, true, "set boolean value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putBooleanVolatile(base, offset, false);
+            boolean x = UNSAFE.getBooleanVolatile(base, offset);
+            assertEquals(x, false, "putVolatile boolean value");
+        }
+
+
+
+
+    }
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestByte.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for byte
+ * @modules java.base/sun.misc
+ * @run testng/othervm -Diters=100   -Xint                   SunMiscUnsafeAccessTestByte
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 SunMiscUnsafeAccessTestByte
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  SunMiscUnsafeAccessTestByte
+ * @run testng/othervm -Diters=20000                         SunMiscUnsafeAccessTestByte
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class SunMiscUnsafeAccessTestByte {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final sun.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (sun.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = SunMiscUnsafeAccessTestByte.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = SunMiscUnsafeAccessTestByte.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(byte[].class);
+        int ascale = UNSAFE.arrayIndexScale(byte[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static byte static_v;
+
+    byte v;
+
+    @Test
+    public void testFieldInstance() {
+        SunMiscUnsafeAccessTestByte t = new SunMiscUnsafeAccessTestByte();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        byte[] array = new byte[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putByte(base, offset, (byte)1);
+            byte x = UNSAFE.getByte(base, offset);
+            assertEquals(x, (byte)1, "set byte value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putByteVolatile(base, offset, (byte)2);
+            byte x = UNSAFE.getByteVolatile(base, offset);
+            assertEquals(x, (byte)2, "putVolatile byte value");
+        }
+
+
+
+
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putByte(address, (byte)1);
+            byte x = UNSAFE.getByte(address);
+            assertEquals(x, (byte)1, "set byte value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestChar.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for char
+ * @modules java.base/sun.misc
+ * @run testng/othervm -Diters=100   -Xint                   SunMiscUnsafeAccessTestChar
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 SunMiscUnsafeAccessTestChar
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  SunMiscUnsafeAccessTestChar
+ * @run testng/othervm -Diters=20000                         SunMiscUnsafeAccessTestChar
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class SunMiscUnsafeAccessTestChar {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final sun.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (sun.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = SunMiscUnsafeAccessTestChar.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = SunMiscUnsafeAccessTestChar.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(char[].class);
+        int ascale = UNSAFE.arrayIndexScale(char[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static char static_v;
+
+    char v;
+
+    @Test
+    public void testFieldInstance() {
+        SunMiscUnsafeAccessTestChar t = new SunMiscUnsafeAccessTestChar();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        char[] array = new char[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putChar(base, offset, 'a');
+            char x = UNSAFE.getChar(base, offset);
+            assertEquals(x, 'a', "set char value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putCharVolatile(base, offset, 'b');
+            char x = UNSAFE.getCharVolatile(base, offset);
+            assertEquals(x, 'b', "putVolatile char value");
+        }
+
+
+
+
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putChar(address, 'a');
+            char x = UNSAFE.getChar(address);
+            assertEquals(x, 'a', "set char value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestDouble.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for double
+ * @modules java.base/sun.misc
+ * @run testng/othervm -Diters=100   -Xint                   SunMiscUnsafeAccessTestDouble
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 SunMiscUnsafeAccessTestDouble
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  SunMiscUnsafeAccessTestDouble
+ * @run testng/othervm -Diters=20000                         SunMiscUnsafeAccessTestDouble
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class SunMiscUnsafeAccessTestDouble {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final sun.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (sun.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = SunMiscUnsafeAccessTestDouble.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = SunMiscUnsafeAccessTestDouble.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(double[].class);
+        int ascale = UNSAFE.arrayIndexScale(double[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static double static_v;
+
+    double v;
+
+    @Test
+    public void testFieldInstance() {
+        SunMiscUnsafeAccessTestDouble t = new SunMiscUnsafeAccessTestDouble();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        double[] array = new double[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putDouble(base, offset, 1.0d);
+            double x = UNSAFE.getDouble(base, offset);
+            assertEquals(x, 1.0d, "set double value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putDoubleVolatile(base, offset, 2.0d);
+            double x = UNSAFE.getDoubleVolatile(base, offset);
+            assertEquals(x, 2.0d, "putVolatile double value");
+        }
+
+
+
+
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putDouble(address, 1.0d);
+            double x = UNSAFE.getDouble(address);
+            assertEquals(x, 1.0d, "set double value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestFloat.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for float
+ * @modules java.base/sun.misc
+ * @run testng/othervm -Diters=100   -Xint                   SunMiscUnsafeAccessTestFloat
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 SunMiscUnsafeAccessTestFloat
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  SunMiscUnsafeAccessTestFloat
+ * @run testng/othervm -Diters=20000                         SunMiscUnsafeAccessTestFloat
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class SunMiscUnsafeAccessTestFloat {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final sun.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (sun.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = SunMiscUnsafeAccessTestFloat.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = SunMiscUnsafeAccessTestFloat.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(float[].class);
+        int ascale = UNSAFE.arrayIndexScale(float[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static float static_v;
+
+    float v;
+
+    @Test
+    public void testFieldInstance() {
+        SunMiscUnsafeAccessTestFloat t = new SunMiscUnsafeAccessTestFloat();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        float[] array = new float[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putFloat(base, offset, 1.0f);
+            float x = UNSAFE.getFloat(base, offset);
+            assertEquals(x, 1.0f, "set float value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putFloatVolatile(base, offset, 2.0f);
+            float x = UNSAFE.getFloatVolatile(base, offset);
+            assertEquals(x, 2.0f, "putVolatile float value");
+        }
+
+
+
+
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putFloat(address, 1.0f);
+            float x = UNSAFE.getFloat(address);
+            assertEquals(x, 1.0f, "set float value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestInt.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,211 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for int
+ * @modules java.base/sun.misc
+ * @run testng/othervm -Diters=100   -Xint                   SunMiscUnsafeAccessTestInt
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 SunMiscUnsafeAccessTestInt
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  SunMiscUnsafeAccessTestInt
+ * @run testng/othervm -Diters=20000                         SunMiscUnsafeAccessTestInt
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class SunMiscUnsafeAccessTestInt {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final sun.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (sun.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = SunMiscUnsafeAccessTestInt.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = SunMiscUnsafeAccessTestInt.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(int[].class);
+        int ascale = UNSAFE.arrayIndexScale(int[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static int static_v;
+
+    int v;
+
+    @Test
+    public void testFieldInstance() {
+        SunMiscUnsafeAccessTestInt t = new SunMiscUnsafeAccessTestInt();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        int[] array = new int[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putInt(base, offset, 1);
+            int x = UNSAFE.getInt(base, offset);
+            assertEquals(x, 1, "set int value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putIntVolatile(base, offset, 2);
+            int x = UNSAFE.getIntVolatile(base, offset);
+            assertEquals(x, 2, "putVolatile int value");
+        }
+
+        // Lazy
+        {
+            UNSAFE.putOrderedInt(base, offset, 1);
+            int x = UNSAFE.getIntVolatile(base, offset);
+            assertEquals(x, 1, "putRelease int value");
+        }
+
+
+        UNSAFE.putInt(base, offset, 1);
+
+        // Compare
+        {
+            boolean r = UNSAFE.compareAndSwapInt(base, offset, 1, 2);
+            assertEquals(r, true, "success compareAndSwap int");
+            int x = UNSAFE.getInt(base, offset);
+            assertEquals(x, 2, "success compareAndSwap int value");
+        }
+
+        {
+            boolean r = UNSAFE.compareAndSwapInt(base, offset, 1, 3);
+            assertEquals(r, false, "failing compareAndSwap int");
+            int x = UNSAFE.getInt(base, offset);
+            assertEquals(x, 2, "failing compareAndSwap int value");
+        }
+
+        // Compare set and get
+        {
+            int o = UNSAFE.getAndSetInt(base, offset, 1);
+            assertEquals(o, 2, "getAndSet int");
+            int x = UNSAFE.getInt(base, offset);
+            assertEquals(x, 1, "getAndSet int value");
+        }
+
+        UNSAFE.putInt(base, offset, 1);
+
+        // get and add, add and get
+        {
+            int o = UNSAFE.getAndAddInt(base, offset, 2);
+            assertEquals(o, 1, "getAndAdd int");
+            int x = UNSAFE.getInt(base, offset);
+            assertEquals(x, 1 + 2, "weakCompareAndSwapRelease int");
+        }
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putInt(address, 1);
+            int x = UNSAFE.getInt(address);
+            assertEquals(x, 1, "set int value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestLong.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,211 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for long
+ * @modules java.base/sun.misc
+ * @run testng/othervm -Diters=100   -Xint                   SunMiscUnsafeAccessTestLong
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 SunMiscUnsafeAccessTestLong
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  SunMiscUnsafeAccessTestLong
+ * @run testng/othervm -Diters=20000                         SunMiscUnsafeAccessTestLong
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class SunMiscUnsafeAccessTestLong {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final sun.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (sun.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = SunMiscUnsafeAccessTestLong.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = SunMiscUnsafeAccessTestLong.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(long[].class);
+        int ascale = UNSAFE.arrayIndexScale(long[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static long static_v;
+
+    long v;
+
+    @Test
+    public void testFieldInstance() {
+        SunMiscUnsafeAccessTestLong t = new SunMiscUnsafeAccessTestLong();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        long[] array = new long[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putLong(base, offset, 1L);
+            long x = UNSAFE.getLong(base, offset);
+            assertEquals(x, 1L, "set long value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putLongVolatile(base, offset, 2L);
+            long x = UNSAFE.getLongVolatile(base, offset);
+            assertEquals(x, 2L, "putVolatile long value");
+        }
+
+        // Lazy
+        {
+            UNSAFE.putOrderedLong(base, offset, 1L);
+            long x = UNSAFE.getLongVolatile(base, offset);
+            assertEquals(x, 1L, "putRelease long value");
+        }
+
+
+        UNSAFE.putLong(base, offset, 1L);
+
+        // Compare
+        {
+            boolean r = UNSAFE.compareAndSwapLong(base, offset, 1L, 2L);
+            assertEquals(r, true, "success compareAndSwap long");
+            long x = UNSAFE.getLong(base, offset);
+            assertEquals(x, 2L, "success compareAndSwap long value");
+        }
+
+        {
+            boolean r = UNSAFE.compareAndSwapLong(base, offset, 1L, 3L);
+            assertEquals(r, false, "failing compareAndSwap long");
+            long x = UNSAFE.getLong(base, offset);
+            assertEquals(x, 2L, "failing compareAndSwap long value");
+        }
+
+        // Compare set and get
+        {
+            long o = UNSAFE.getAndSetLong(base, offset, 1L);
+            assertEquals(o, 2L, "getAndSet long");
+            long x = UNSAFE.getLong(base, offset);
+            assertEquals(x, 1L, "getAndSet long value");
+        }
+
+        UNSAFE.putLong(base, offset, 1L);
+
+        // get and add, add and get
+        {
+            long o = UNSAFE.getAndAddLong(base, offset, 2L);
+            assertEquals(o, 1L, "getAndAdd long");
+            long x = UNSAFE.getLong(base, offset);
+            assertEquals(x, 1L + 2L, "weakCompareAndSwapRelease long");
+        }
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putLong(address, 1L);
+            long x = UNSAFE.getLong(address);
+            assertEquals(x, 1L, "set long value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestObject.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for Object
+ * @modules java.base/sun.misc
+ * @run testng/othervm -Diters=100   -Xint                   SunMiscUnsafeAccessTestObject
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 SunMiscUnsafeAccessTestObject
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  SunMiscUnsafeAccessTestObject
+ * @run testng/othervm -Diters=20000                         SunMiscUnsafeAccessTestObject
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class SunMiscUnsafeAccessTestObject {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final sun.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (sun.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = SunMiscUnsafeAccessTestObject.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = SunMiscUnsafeAccessTestObject.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(Object[].class);
+        int ascale = UNSAFE.arrayIndexScale(Object[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static Object static_v;
+
+    Object v;
+
+    @Test
+    public void testFieldInstance() {
+        SunMiscUnsafeAccessTestObject t = new SunMiscUnsafeAccessTestObject();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        Object[] array = new Object[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putObject(base, offset, "foo");
+            Object x = UNSAFE.getObject(base, offset);
+            assertEquals(x, "foo", "set Object value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putObjectVolatile(base, offset, "bar");
+            Object x = UNSAFE.getObjectVolatile(base, offset);
+            assertEquals(x, "bar", "putVolatile Object value");
+        }
+
+        // Lazy
+        {
+            UNSAFE.putOrderedObject(base, offset, "foo");
+            Object x = UNSAFE.getObjectVolatile(base, offset);
+            assertEquals(x, "foo", "putRelease Object value");
+        }
+
+
+        UNSAFE.putObject(base, offset, "foo");
+
+        // Compare
+        {
+            boolean r = UNSAFE.compareAndSwapObject(base, offset, "foo", "bar");
+            assertEquals(r, true, "success compareAndSwap Object");
+            Object x = UNSAFE.getObject(base, offset);
+            assertEquals(x, "bar", "success compareAndSwap Object value");
+        }
+
+        {
+            boolean r = UNSAFE.compareAndSwapObject(base, offset, "foo", "baz");
+            assertEquals(r, false, "failing compareAndSwap Object");
+            Object x = UNSAFE.getObject(base, offset);
+            assertEquals(x, "bar", "failing compareAndSwap Object value");
+        }
+
+        // Compare set and get
+        {
+            Object o = UNSAFE.getAndSetObject(base, offset, "foo");
+            assertEquals(o, "bar", "getAndSet Object");
+            Object x = UNSAFE.getObject(base, offset);
+            assertEquals(x, "foo", "getAndSet Object value");
+        }
+
+    }
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/SunMiscUnsafeAccessTestShort.java	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for short
+ * @modules java.base/sun.misc
+ * @run testng/othervm -Diters=100   -Xint                   SunMiscUnsafeAccessTestShort
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 SunMiscUnsafeAccessTestShort
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  SunMiscUnsafeAccessTestShort
+ * @run testng/othervm -Diters=20000                         SunMiscUnsafeAccessTestShort
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class SunMiscUnsafeAccessTestShort {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final sun.misc.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = (sun.misc.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = SunMiscUnsafeAccessTestShort.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = SunMiscUnsafeAccessTestShort.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset(short[].class);
+        int ascale = UNSAFE.arrayIndexScale(short[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static short static_v;
+
+    short v;
+
+    @Test
+    public void testFieldInstance() {
+        SunMiscUnsafeAccessTestShort t = new SunMiscUnsafeAccessTestShort();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        short[] array = new short[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.putShort(base, offset, (short)1);
+            short x = UNSAFE.getShort(base, offset);
+            assertEquals(x, (short)1, "set short value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.putShortVolatile(base, offset, (short)2);
+            short x = UNSAFE.getShortVolatile(base, offset);
+            assertEquals(x, (short)2, "putVolatile short value");
+        }
+
+
+
+
+    }
+
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.putShort(address, (short)1);
+            short x = UNSAFE.getShort(address);
+            assertEquals(x, (short)1, "set short value");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/X-UnsafeAccessTest.java.template	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,247 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8143628
+ * @summary Test unsafe access for $type$
+ * @modules java.base/$package$
+ * @run testng/othervm -Diters=100   -Xint                   $Qualifier$UnsafeAccessTest$Type$
+ * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 $Qualifier$UnsafeAccessTest$Type$
+ * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  $Qualifier$UnsafeAccessTest$Type$
+ * @run testng/othervm -Diters=20000                         $Qualifier$UnsafeAccessTest$Type$
+ */
+
+import org.testng.annotations.Test;
+
+import java.lang.reflect.Field;
+
+import static org.testng.Assert.*;
+
+public class $Qualifier$UnsafeAccessTest$Type$ {
+    static final int ITERS = Integer.getInteger("iters", 1);
+
+    static final $package$.Unsafe UNSAFE;
+
+    static final long V_OFFSET;
+
+    static final Object STATIC_V_BASE;
+
+    static final long STATIC_V_OFFSET;
+
+    static int ARRAY_OFFSET;
+
+    static int ARRAY_SHIFT;
+
+    static {
+        try {
+            Field f = $package$.Unsafe.class.getDeclaredField("theUnsafe");
+            f.setAccessible(true);
+            UNSAFE = ($package$.Unsafe) f.get(null);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get Unsafe instance.", e);
+        }
+
+        try {
+            Field staticVField = $Qualifier$UnsafeAccessTest$Type$.class.getDeclaredField("static_v");
+            STATIC_V_BASE = UNSAFE.staticFieldBase(staticVField);
+            STATIC_V_OFFSET = UNSAFE.staticFieldOffset(staticVField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+            Field vField = $Qualifier$UnsafeAccessTest$Type$.class.getDeclaredField("v");
+            V_OFFSET = UNSAFE.objectFieldOffset(vField);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        ARRAY_OFFSET = UNSAFE.arrayBaseOffset($type$[].class);
+        int ascale = UNSAFE.arrayIndexScale($type$[].class);
+        ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(ascale);
+    }
+
+    static $type$ static_v;
+
+    $type$ v;
+
+    @Test
+    public void testFieldInstance() {
+        $Qualifier$UnsafeAccessTest$Type$ t = new $Qualifier$UnsafeAccessTest$Type$();
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(t, V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testFieldStatic() {
+        for (int c = 0; c < ITERS; c++) {
+            testAccess(STATIC_V_BASE, STATIC_V_OFFSET);
+        }
+    }
+
+    @Test
+    public void testArray() {
+        $type$[] array = new $type$[10];
+        for (int c = 0; c < ITERS; c++) {
+            for (int i = 0; i < array.length; i++) {
+                testAccess(array, (((long) i) << ARRAY_SHIFT) + ARRAY_OFFSET);
+            }
+        }
+    }
+
+#if[!Object]
+#if[!boolean]
+    @Test
+    public void testArrayOffHeap() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess(null, (((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+
+    @Test
+    public void testArrayOffHeapDirect() {
+        int size = 10;
+        long address = UNSAFE.allocateMemory(size << ARRAY_SHIFT);
+        try {
+            for (int c = 0; c < ITERS; c++) {
+                for (int i = 0; i < size; i++) {
+                    testAccess((((long) i) << ARRAY_SHIFT) + address);
+                }
+            }
+        } finally {
+            UNSAFE.freeMemory(address);
+        }
+    }
+#end[!boolean]
+#end[!Object]
+
+    static void testAccess(Object base, long offset) {
+        // Plain
+        {
+            UNSAFE.put$Type$(base, offset, $value1$);
+            $type$ x = UNSAFE.get$Type$(base, offset);
+            assertEquals(x, $value1$, "set $type$ value");
+        }
+
+        // Volatile
+        {
+            UNSAFE.put$Type$Volatile(base, offset, $value2$);
+            $type$ x = UNSAFE.get$Type$Volatile(base, offset);
+            assertEquals(x, $value2$, "putVolatile $type$ value");
+        }
+
+#if[Ordered]
+        // Lazy
+        {
+            UNSAFE.putOrdered$Type$(base, offset, $value1$);
+            $type$ x = UNSAFE.get$Type$Volatile(base, offset);
+            assertEquals(x, $value1$, "putRelease $type$ value");
+        }
+#end[Ordered]
+
+#if[JdkInternalMisc]
+#if[Unaligned]
+        // Unaligned
+        {
+            UNSAFE.put$Type$Unaligned(base, offset, $value2$);
+            $type$ x = UNSAFE.get$Type$Unaligned(base, offset);
+            assertEquals(x, $value2$, "putUnaligned $type$ value");
+        }
+
+        {
+            UNSAFE.put$Type$Unaligned(base, offset, $value1$, true);
+            $type$ x = UNSAFE.get$Type$Unaligned(base, offset, true);
+            assertEquals(x, $value1$, "putUnaligned big endian $type$ value");
+        }
+
+        {
+            UNSAFE.put$Type$Unaligned(base, offset, $value2$, false);
+            $type$ x = UNSAFE.get$Type$Unaligned(base, offset, false);
+            assertEquals(x, $value2$, "putUnaligned little endian $type$ value");
+        }
+#end[Unaligned]
+#end[JdkInternalMisc]
+
+#if[CAS]
+        UNSAFE.put$Type$(base, offset, $value1$);
+
+        // Compare
+        {
+            boolean r = UNSAFE.compareAndSwap$Type$(base, offset, $value1$, $value2$);
+            assertEquals(r, true, "success compareAndSwap $type$");
+            $type$ x = UNSAFE.get$Type$(base, offset);
+            assertEquals(x, $value2$, "success compareAndSwap $type$ value");
+        }
+
+        {
+            boolean r = UNSAFE.compareAndSwap$Type$(base, offset, $value1$, $value3$);
+            assertEquals(r, false, "failing compareAndSwap $type$");
+            $type$ x = UNSAFE.get$Type$(base, offset);
+            assertEquals(x, $value2$, "failing compareAndSwap $type$ value");
+        }
+
+        // Compare set and get
+        {
+            $type$ o = UNSAFE.getAndSet$Type$(base, offset, $value1$);
+            assertEquals(o, $value2$, "getAndSet $type$");
+            $type$ x = UNSAFE.get$Type$(base, offset);
+            assertEquals(x, $value1$, "getAndSet $type$ value");
+        }
+#end[CAS]
+
+#if[AtomicAdd]
+        UNSAFE.put$Type$(base, offset, $value1$);
+
+        // get and add, add and get
+        {
+            $type$ o = UNSAFE.getAndAdd$Type$(base, offset, $value2$);
+            assertEquals(o, $value1$, "getAndAdd $type$");
+            $type$ x = UNSAFE.get$Type$(base, offset);
+            assertEquals(x, $value1$ + $value2$, "weakCompareAndSwapRelease $type$");
+        }
+#end[AtomicAdd]
+    }
+
+#if[!Object]
+#if[!boolean]
+    static void testAccess(long address) {
+        // Plain
+        {
+            UNSAFE.put$Type$(address, $value1$);
+            $type$ x = UNSAFE.get$Type$(address);
+            assertEquals(x, $value1$, "set $type$ value");
+        }
+    }
+#end[!boolean]
+#end[!Object]
+}
\ No newline at end of file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/generate-unsafe-access-tests.sh	Wed Dec 09 14:54:40 2015 +0100
@@ -0,0 +1,119 @@
+#!/bin/bash
+
+#
+# Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+javac -d . ../../../../jdk/make/src/classes/build/tools/spp/Spp.java
+
+SPP=build.tools.spp.Spp
+
+# Generates unsafe access tests for objects and all primitive types
+# $1 = package name to Unsafe, sun.misc | jdk.internal.misc
+# $2 = test class qualifier name, SunMisc | JdkInternalMisc
+function generate {
+    package=$1
+    Qualifier=$2
+
+    for type in boolean byte short char int long float double Object
+    do
+      Type="$(tr '[:lower:]' '[:upper:]' <<< ${type:0:1})${type:1}"
+      args="-K$type -Dtype=$type -DType=$Type"
+
+      case $type in
+        Object|int|long)
+          args="$args -KCAS -KOrdered"
+          ;;
+      esac
+
+      case $type in
+        int|long)
+          args="$args -KAtomicAdd"
+          ;;
+      esac
+
+      case $type in
+        short|char|int|long)
+          args="$args -KUnaligned"
+          ;;
+      esac
+
+      case $type in
+        boolean)
+          value1=true
+          value2=false
+          value3=false
+          ;;
+        byte)
+          value1=(byte)1
+          value2=(byte)2
+          value3=(byte)3
+          ;;
+        short)
+          value1=(short)1
+          value2=(short)2
+          value3=(short)3
+          ;;
+        char)
+          value1=\'a\'
+          value2=\'b\'
+          value3=\'c\'
+          ;;
+        int)
+          value1=1
+          value2=2
+          value3=3
+          ;;
+        long)
+          value1=1L
+          value2=2L
+          value3=3L
+          ;;
+        float)
+          value1=1.0f
+          value2=2.0f
+          value3=3.0f
+          ;;
+        double)
+          value1=1.0d
+          value2=2.0d
+          value3=3.0d
+          ;;
+        Object)
+          value1=\"foo\"
+          value2=\"bar\"
+          value3=\"baz\"
+          ;;
+      esac
+
+      args="$args -Dvalue1=$value1 -Dvalue2=$value2 -Dvalue3=$value3"
+
+      echo $args
+      java $SPP -nel -K$Qualifier -Dpackage=$package -DQualifier=$Qualifier \
+          $args < X-UnsafeAccessTest.java.template > ${Qualifier}UnsafeAccessTest${Type}.java
+    done
+}
+
+generate sun.misc SunMisc
+generate jdk.internal.misc JdkInternalMisc
+
+rm -fr build
\ No newline at end of file