GetMaxCallTargetOffsetTest.java revision 9814:22fd02fad88b 
1/*
2 * Copyright (c) 2015, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 * @test
26 * @bug 8136421
27 * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9" | os.simpleArch == "aarch64")
28 * @library / /testlibrary /test/lib/
29 * @compile ../common/CompilerToVMHelper.java
30 * @build compiler.jvmci.compilerToVM.GetMaxCallTargetOffsetTest
31 * @run main ClassFileInstaller
32 *     jdk.vm.ci.hotspot.CompilerToVMHelper
33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockExperimentalVMOptions
34 *     -XX:+EnableJVMCI compiler.jvmci.compilerToVM.GetMaxCallTargetOffsetTest
35 */
36
37package compiler.jvmci.compilerToVM;
38
39import jdk.vm.ci.hotspot.CompilerToVMHelper;
40import jdk.test.lib.Asserts;
41
42public class GetMaxCallTargetOffsetTest {
43    public static void main(String args[]) {
44        new GetMaxCallTargetOffsetTest().runTest();
45    }
46
47    private void runTest() {
48        long offset1 = CompilerToVMHelper.getMaxCallTargetOffset(0L);
49        Asserts.assertNE(offset1, 0L,
50                "Unexpected maxCallTargetOffset for 0L");
51        long offset2 = CompilerToVMHelper.getMaxCallTargetOffset(100L);
52        Asserts.assertNE(offset2, 0L,
53                "Unexpected maxCallTargetOffset for 100L");
54        long offset3 = CompilerToVMHelper.getMaxCallTargetOffset(1000000L);
55        Asserts.assertNE(offset3, 0L,
56                "Unexpected maxCallTargetOffset for 1000000L");
57        // there can be 2 same offsets, but not 3
58        Asserts.assertFalse(offset1 == offset2 && offset2 == offset3,
59                "All 3 offsets are unexpectedly equal: " + offset1);
60    }
61}
62