Mercurial > hg > graal-compiler
comparison test/compiler/EliminateAutoBox/UnsignedLoads.java @ 20669:e194d26c9f4e
8058847: C2: EliminateAutoBox regression after 8042786
Reviewed-by: kvn, roland
author | vlivanov |
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date | Fri, 24 Oct 2014 09:13:12 -0700 |
parents | |
children | abb8b1de96ff |
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20668:c80ddae00f51 | 20669:e194d26c9f4e |
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1 /* | |
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. Oracle designates this | |
8 * particular file as subject to the "Classpath" exception as provided | |
9 * by Oracle in the LICENSE file that accompanied this code. | |
10 * | |
11 * This code is distributed in the hope that it will be useful, but WITHOUT | |
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 * version 2 for more details (a copy is included in the LICENSE file that | |
15 * accompanied this code). | |
16 * | |
17 * You should have received a copy of the GNU General Public License version | |
18 * 2 along with this work; if not, write to the Free Software Foundation, | |
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
20 * | |
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
22 * or visit www.oracle.com if you need additional information or have any | |
23 * questions. | |
24 */ | |
25 | |
26 /* | |
27 * @test | |
28 * @library /testlibrary | |
29 * @run main/othervm -Xbatch -XX:+EliminateAutoBox | |
30 * -XX:CompileOnly=::valueOf,::byteValue,::shortValue,::testUnsignedByte,::testUnsignedShort | |
31 * UnsignedLoads | |
32 */ | |
33 import static com.oracle.java.testlibrary.Asserts.assertEQ; | |
34 | |
35 public class UnsignedLoads { | |
36 public static int testUnsignedByte() { | |
37 byte[] bytes = new byte[] {-1}; | |
38 int res = 0; | |
39 for (int i = 0; i < 100000; i++) { | |
40 for (Byte b : bytes) { | |
41 res = b & 0xff; | |
42 } | |
43 } | |
44 return res; | |
45 } | |
46 | |
47 public static int testUnsignedShort() { | |
48 int res = 0; | |
49 short[] shorts = new short[] {-1}; | |
50 for (int i = 0; i < 100000; i++) { | |
51 for (Short s : shorts) { | |
52 res = s & 0xffff; | |
53 } | |
54 } | |
55 return res; | |
56 } | |
57 | |
58 public static void main(String[] args) { | |
59 assertEQ(testUnsignedByte(), 255); | |
60 assertEQ(testUnsignedShort(), 65535); | |
61 System.out.println("TEST PASSED"); | |
62 } | |
63 } |