From 8dd4a007f5a6f92b50767048863b5333b21199e2 Mon Sep 17 00:00:00 2001 From: iveresov Date: Tue, 23 Sep 2014 17:24:34 -0700 Subject: [PATCH] 8059002: 8058744 needs a test case Summary: Added a test case the UnsafeRawOp intrinsics Reviewed-by: kvn --- test/compiler/unsafe/UnsafeRaw.java | 140 ++++++++++++++++++++++++++++ 1 file changed, 140 insertions(+) create mode 100644 test/compiler/unsafe/UnsafeRaw.java diff --git a/test/compiler/unsafe/UnsafeRaw.java b/test/compiler/unsafe/UnsafeRaw.java new file mode 100644 index 000000000..5d172a5f4 --- /dev/null +++ b/test/compiler/unsafe/UnsafeRaw.java @@ -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(); + } + } + } +} -- GitLab