1 /*
   2  * Copyright (c) 2015, 2016, 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 (vm.arch == "x64" | vm.arch == "sparcv9" | vm.arch == "arm64")
  28  * @library / /testlibrary /test/lib/
  29  * @library ../common/patches
  30  * @modules java.base/jdk.internal.misc
  31  * @modules jdk.vm.ci/jdk.vm.ci.hotspot
  32  * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
  33  * @build compiler.jvmci.compilerToVM.CollectCountersTest
  34  * @run main/othervm -XX:+UnlockExperimentalVMOptions
  35  *                   -XX:+EnableJVMCI
  36  *                   -XX:JVMCICounterSize=0
  37  *                   -Dcompiler.jvmci.compilerToVM.CollectCountersTest.expected=0
  38  *                   compiler.jvmci.compilerToVM.CollectCountersTest
  39  * @run main/othervm -XX:+UnlockExperimentalVMOptions
  40  *                   -XX:+EnableJVMCI
  41  *                   -XX:JVMCICounterSize=11
  42  *                   -Dcompiler.jvmci.compilerToVM.CollectCountersTest.expected=11
  43  *                   compiler.jvmci.compilerToVM.CollectCountersTest
  44  */
  45 
  46 package compiler.jvmci.compilerToVM;
  47 
  48 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  49 import jdk.test.lib.Asserts;
  50 
  51 public class CollectCountersTest {
  52     private static final int EXPECTED = Integer.getInteger(
  53             "compiler.jvmci.compilerToVM.CollectCountersTest.expected");
  54     public static void main(String args[]) {
  55         new CollectCountersTest().runTest();
  56     }
  57 
  58     private void runTest() {
  59         long[] counters = CompilerToVMHelper.collectCounters();
  60         Asserts.assertNotNull(counters, "Expected not-null counters array");
  61         int ctvmData = counters.length;
  62         Asserts.assertEQ(EXPECTED, ctvmData, "Unexpected counters amount");
  63     }
  64 }