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8059002: 8058744 needs a test case

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Added a test case the UnsafeRawOp intrinsics

Reviewed-by: kvn
This commit is contained in:
Igor Veresov 2014-09-23 17:24:34 -07:00
parent ce1c41a15b
commit f85f7d2832
1 changed files with 140 additions and 0 deletions
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hotspot/test/compiler/unsafe/UnsafeRaw.java Normal file
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/*
* 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();
}
}
}
}