| /* |
| * Copyright (c) 2015, 2016, 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 8136421 |
| * @requires vm.jvmci |
| * @library / /test/lib/ |
| * @library ../common/patches |
| * @modules java.base/jdk.internal.misc |
| * @modules jdk.vm.ci/jdk.vm.ci.hotspot |
| * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper |
| * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI |
| * compiler.jvmci.compilerToVM.GetMaxCallTargetOffsetTest |
| */ |
| |
| package compiler.jvmci.compilerToVM; |
| |
| import jdk.test.lib.Asserts; |
| import jdk.vm.ci.hotspot.CompilerToVMHelper; |
| |
| public class GetMaxCallTargetOffsetTest { |
| public static void main(String args[]) { |
| new GetMaxCallTargetOffsetTest().runTest(); |
| } |
| |
| private void runTest() { |
| long offset1 = CompilerToVMHelper.getMaxCallTargetOffset(0L); |
| Asserts.assertNE(offset1, 0L, |
| "Unexpected maxCallTargetOffset for 0L"); |
| long offset2 = CompilerToVMHelper.getMaxCallTargetOffset(100L); |
| Asserts.assertNE(offset2, 0L, |
| "Unexpected maxCallTargetOffset for 100L"); |
| long offset3 = CompilerToVMHelper.getMaxCallTargetOffset(1000000L); |
| Asserts.assertNE(offset3, 0L, |
| "Unexpected maxCallTargetOffset for 1000000L"); |
| // there can be 2 same offsets, but not 3 |
| Asserts.assertFalse(offset1 == offset2 && offset2 == offset3, |
| "All 3 offsets are unexpectedly equal: " + offset1); |
| } |
| } |