--- /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]
+}
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