--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/unsafe/UnsafeRaw.java Tue Sep 23 17:24:34 2014 -0700
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2014, 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 8058744
+ * @summary Invalid pattern-matching of address computations in raw unsafe
+ * @library /testlibrary
+ * @run main/othervm -Xbatch UnsafeRaw
+ */
+
+import com.oracle.java.testlibrary.Utils;
+import java.util.Random;
+
+public class UnsafeRaw {
+ public static class Tests {
+ public static int int_index(sun.misc.Unsafe unsafe, long base, int index) throws Exception {
+ return unsafe.getInt(base + (index << 2));
+ }
+ public static int long_index(sun.misc.Unsafe unsafe, long base, long index) throws Exception {
+ return unsafe.getInt(base + (index << 2));
+ }
+ public static int int_index_back_ashift(sun.misc.Unsafe unsafe, long base, int index) throws Exception {
+ return unsafe.getInt(base + (index >> 2));
+ }
+ public static int int_index_back_lshift(sun.misc.Unsafe unsafe, long base, int index) throws Exception {
+ return unsafe.getInt(base + (index >>> 2));
+ }
+ public static int long_index_back_ashift(sun.misc.Unsafe unsafe, long base, long index) throws Exception {
+ return unsafe.getInt(base + (index >> 2));
+ }
+ public static int long_index_back_lshift(sun.misc.Unsafe unsafe, long base, long index) throws Exception {
+ return unsafe.getInt(base + (index >>> 2));
+ }
+ public static int int_const_12345678_index(sun.misc.Unsafe unsafe, long base) throws Exception {
+ int idx4 = 0x12345678;
+ return unsafe.getInt(base + idx4);
+ }
+ public static int long_const_1234567890abcdef_index(sun.misc.Unsafe unsafe, long base) throws Exception {
+ long idx5 = 0x1234567890abcdefL;
+ return unsafe.getInt(base + idx5);
+ }
+ public static int int_index_mul(sun.misc.Unsafe unsafe, long base, int index) throws Exception {
+ return unsafe.getInt(base + (index * 4));
+ }
+ public static int long_index_mul(sun.misc.Unsafe unsafe, long base, long index) throws Exception {
+ return unsafe.getInt(base + (index * 4));
+ }
+ public static int int_index_mul_scale_16(sun.misc.Unsafe unsafe, long base, int index) throws Exception {
+ return unsafe.getInt(base + (index * 16));
+ }
+ public static int long_index_mul_scale_16(sun.misc.Unsafe unsafe, long base, long index) throws Exception {
+ return unsafe.getInt(base + (index * 16));
+ }
+ }
+
+ public static void main(String[] args) throws Exception {
+ sun.misc.Unsafe unsafe = Utils.getUnsafe();
+ final int array_size = 128;
+ final int element_size = 4;
+ final int magic = 0x12345678;
+
+ Random rnd = new Random();
+
+ long array = unsafe.allocateMemory(array_size * element_size); // 128 ints
+ long addr = array + array_size * element_size / 2; // something in the middle to work with
+ unsafe.putInt(addr, magic);
+ for (int j = 0; j < 100000; j++) {
+ if (Tests.int_index(unsafe, addr, 0) != magic) throw new Exception();
+ if (Tests.long_index(unsafe, addr, 0) != magic) throw new Exception();
+ if (Tests.int_index_mul(unsafe, addr, 0) != magic) throw new Exception();
+ if (Tests.long_index_mul(unsafe, addr, 0) != magic) throw new Exception();
+ {
+ long idx1 = rnd.nextLong();
+ long addr1 = addr - (idx1 << 2);
+ if (Tests.long_index(unsafe, addr1, idx1) != magic) throw new Exception();
+ }
+ {
+ long idx2 = rnd.nextLong();
+ long addr2 = addr - (idx2 >> 2);
+ if (Tests.long_index_back_ashift(unsafe, addr2, idx2) != magic) throw new Exception();
+ }
+ {
+ long idx3 = rnd.nextLong();
+ long addr3 = addr - (idx3 >>> 2);
+ if (Tests.long_index_back_lshift(unsafe, addr3, idx3) != magic) throw new Exception();
+ }
+ {
+ long idx4 = 0x12345678;
+ long addr4 = addr - idx4;
+ if (Tests.int_const_12345678_index(unsafe, addr4) != magic) throw new Exception();
+ }
+ {
+ long idx5 = 0x1234567890abcdefL;
+ long addr5 = addr - idx5;
+ if (Tests.long_const_1234567890abcdef_index(unsafe, addr5) != magic) throw new Exception();
+ }
+ {
+ int idx6 = rnd.nextInt();
+ long addr6 = addr - (idx6 >> 2);
+ if (Tests.int_index_back_ashift(unsafe, addr6, idx6) != magic) throw new Exception();
+ }
+ {
+ int idx7 = rnd.nextInt();
+ long addr7 = addr - (idx7 >>> 2);
+ if (Tests.int_index_back_lshift(unsafe, addr7, idx7) != magic) throw new Exception();
+ }
+ {
+ int idx8 = rnd.nextInt();
+ long addr8 = addr - (idx8 * 16);
+ if (Tests.int_index_mul_scale_16(unsafe, addr8, idx8) != magic) throw new Exception();
+ }
+ {
+ long idx9 = rnd.nextLong();
+ long addr9 = addr - (idx9 * 16);
+ if (Tests.long_index_mul_scale_16(unsafe, addr9, idx9) != magic) throw new Exception();
+ }
+ }
+ }
+}