1 /*
   2  * Copyright (c) 2014, 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 CorrectnessTest
  26  * @bug 8038418
  27  * @library /test/lib /
  28  * @modules java.base/jdk.internal.misc
  29  *          java.management
  30  *
  31  * @build sun.hotspot.WhiteBox
  32  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  33  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  34  * @run main/timeout=1200 compiler.types.correctness.OffTest
  35  */
  36 
  37 package compiler.types.correctness;
  38 
  39 import compiler.types.correctness.scenarios.ProfilingType;
  40 import jdk.test.lib.process.OutputAnalyzer;
  41 import jdk.test.lib.process.ProcessTools;
  42 import jdk.test.lib.Utils;
  43 
  44 import java.util.Random;
  45 
  46 public class OffTest {
  47     private static final String[] OPTIONS = {
  48             "-Xbootclasspath/a:.",
  49             "-XX:+IgnoreUnrecognizedVMOptions",
  50             "-XX:+UnlockExperimentalVMOptions",
  51             "-XX:+UnlockDiagnosticVMOptions",
  52             "-XX:+WhiteBoxAPI",
  53             "-XX:CompileCommand=exclude,compiler.types.correctness.execution.*::methodNotToCompile",
  54             "-XX:CompileCommand=dontinline,compiler.types.correctness.scenarios.Scenario::collectReturnType",
  55             "", // -XX:TypeProfileLevel=?
  56             "", // -XX:?UseTypeSpeculation
  57             CorrectnessTest.class.getName(),
  58             "", // ProfilingType.name()
  59     };
  60 
  61     private static final String TYPE_PROFILE_LEVEL = "TypeProfileLevel";
  62     private static final String USE_TYPE_SPECULATION = "UseTypeSpeculation";
  63     private static final int TYPE_PROFILE_LEVEL_LENGTH = 3;
  64     private static final int TYPE_PROFILE_LEVEL_BOUND = 3;
  65     private static final int DEFAULT_COUNT = 10;
  66     private static final int PROFILING_TYPE_INDEX = OPTIONS.length - 1;
  67     private static final int TYPE_PROFILE_INDEX = OPTIONS.length - 4;
  68     private static final int USE_TYPE_SPECULATION_INDEX = OPTIONS.length - 3;
  69     private static final Random RNG = Utils.getRandomInstance();
  70 
  71     public static void main(String[] args) throws Exception {
  72         int count = DEFAULT_COUNT;
  73         if (args.length > 0) {
  74             count = Integer.parseInt(args[0]) ;
  75         }
  76         for (int i = 0; i < count; ++i) {
  77             runTest();
  78         }
  79     }
  80 
  81     private static void runTest() throws Exception {
  82         String useTypeSpeculation = "-XX:" + (RNG.nextBoolean() ? "+" : "-") +  USE_TYPE_SPECULATION;
  83         String typeProfileLevel = "-XX:" + TYPE_PROFILE_LEVEL + "=" + randomTypeProfileLevel();
  84         ProfilingType type = randomProfileType();
  85         OPTIONS[TYPE_PROFILE_INDEX] = typeProfileLevel;
  86         OPTIONS[USE_TYPE_SPECULATION_INDEX] = useTypeSpeculation;
  87         OPTIONS[PROFILING_TYPE_INDEX] = type.name();
  88         ProcessBuilder processBuilder = ProcessTools.createJavaProcessBuilder(/* addTestVmOptions= */ true, OPTIONS);
  89         OutputAnalyzer outputAnalyzer = new OutputAnalyzer(processBuilder.start());
  90         outputAnalyzer.shouldHaveExitValue(0);
  91     }
  92 
  93     private static ProfilingType randomProfileType() {
  94         ProfilingType[] value = ProfilingType.values();
  95         return value[RNG.nextInt(value.length)];
  96     }
  97 
  98     private static String randomTypeProfileLevel() {
  99         StringBuilder stringBuilder = new StringBuilder();
 100         for (int i = 0; i < TYPE_PROFILE_LEVEL_LENGTH; ++i) {
 101             stringBuilder.append(RNG.nextInt(TYPE_PROFILE_LEVEL_BOUND));
 102         }
 103         return stringBuilder.toString();
 104     }
 105 }