jdk8-mips64-public/hotspot: test/compiler/whitebox/CompilerWhiteBoxTest.java@d1c9384eecb4 (annotated)

test/compiler/whitebox/CompilerWhiteBoxTest.java@d1c9384eecb4 (annotated)

test/compiler/whitebox/CompilerWhiteBoxTest.java

Fri, 26 Apr 2013 07:21:41 -0700

author: iignatyev
date: Fri, 26 Apr 2013 07:21:41 -0700
changeset 5032: d1c9384eecb4
parent 4951: 4b2eebe03f93
child 5512: 11237ee74aae
permissions: -rw-r--r--

8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
Reviewed-by: kvn, vlivanov

 /*
  * Copyright (c) 2013, 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.
  */
 import com.sun.management.HotSpotDiagnosticMXBean;
 import com.sun.management.VMOption;
 import sun.hotspot.WhiteBox;
 import sun.management.ManagementFactoryHelper;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Executable;
 import java.lang.reflect.Method;
 import java.util.Objects;
 import java.util.concurrent.Callable;
 /**
  * Abstract class for WhiteBox testing of JIT.
  *
  * @author igor.ignatyev@oracle.com
  */
 public abstract class CompilerWhiteBoxTest {
     /** {@code CompLevel::CompLevel_none} -- Interpreter */
     protected static int COMP_LEVEL_NONE = 0;
     /** {@code CompLevel::CompLevel_any}, {@code CompLevel::CompLevel_all} */
     protected static int COMP_LEVEL_ANY = -1;
     /** {@code CompLevel::CompLevel_simple} -- C1 */
     protected static int COMP_LEVEL_SIMPLE = 1;
     /** {@code CompLevel::CompLevel_full_optimization} -- C2 or Shark */
     protected static int COMP_LEVEL_FULL_OPTIMIZATION = 4;
     /** Instance of WhiteBox */
     protected static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
     /** Value of {@code -XX:CompileThreshold} */
     protected static final int COMPILE_THRESHOLD
             = Integer.parseInt(getVMOption("CompileThreshold", "10000"));
     /** Value of {@code -XX:BackgroundCompilation} */
     protected static final boolean BACKGROUND_COMPILATION
             = Boolean.valueOf(getVMOption("BackgroundCompilation", "true"));
     /** Value of {@code -XX:TieredCompilation} */
     protected static final boolean TIERED_COMPILATION
             = Boolean.valueOf(getVMOption("TieredCompilation", "false"));
     /** Value of {@code -XX:TieredStopAtLevel} */
     protected static final int TIERED_STOP_AT_LEVEL
             = Integer.parseInt(getVMOption("TieredStopAtLevel", "0"));
     /**
      * Returns value of VM option.
      *
      * @param name option's name
      * @return value of option or {@code null}, if option doesn't exist
      * @throws NullPointerException if name is null
      */
     protected static String getVMOption(String name) {
         Objects.requireNonNull(name);
         HotSpotDiagnosticMXBean diagnostic
                 = ManagementFactoryHelper.getDiagnosticMXBean();
         VMOption tmp;
         try {
             tmp = diagnostic.getVMOption(name);
         } catch (IllegalArgumentException e) {
             tmp = null;
         }
         return (tmp == null ? null : tmp.getValue());
     }
     /**
      * Returns value of VM option or default value.
      *
      * @param name         option's name
      * @param defaultValue default value
      * @return value of option or {@code defaultValue}, if option doesn't exist
      * @throws NullPointerException if name is null
      * @see #getVMOption(String)
      */
     protected static String getVMOption(String name, String defaultValue) {
         String result = getVMOption(name);
         return result == null ? defaultValue : result;
     }
     /** copy of is_c1_compile(int) from utilities/globalDefinitions.hpp */
     protected static boolean isC1Compile(int compLevel) {
         return (compLevel > COMP_LEVEL_NONE)
                 && (compLevel < COMP_LEVEL_FULL_OPTIMIZATION);
     }
     /** copy of is_c2_compile(int) from utilities/globalDefinitions.hpp */
     protected static boolean isC2Compile(int compLevel) {
         return compLevel == COMP_LEVEL_FULL_OPTIMIZATION;
     }
     /** tested method */
     protected final Executable method;
     private final Callable<Integer> callable;
     /**
      * Constructor.
      *
      * @param testCase object, that contains tested method and way to invoke it.
      */
     protected CompilerWhiteBoxTest(TestCase testCase) {
         Objects.requireNonNull(testCase);
         System.out.println("TEST CASE:" + testCase.name());
         method = testCase.executable;
         callable = testCase.callable;
     }
     /**
      * Template method for testing. Prints tested method's info before
      * {@linkplain #test()} and after {@linkplain #test()} or on thrown
      * exception.
      *
      * @throws RuntimeException if method {@linkplain #test()} throws any
      *                          exception
      * @see #test()
      */
     protected final void runTest() {
         if (ManagementFactoryHelper.getCompilationMXBean() == null) {
             System.err.println(
                     "Warning: test is not applicable in interpreted mode");
             return;
         }
         System.out.println("at test's start:");
         printInfo();
         try {
             test();
         } catch (Exception e) {
             System.out.printf("on exception '%s':", e.getMessage());
             printInfo();
             e.printStackTrace();
             if (e instanceof RuntimeException) {
                 throw (RuntimeException) e;
             }
             throw new RuntimeException(e);
         }
         System.out.println("at test's end:");
         printInfo();
     }
     /**
      * Checks, that {@linkplain #method} is not compiled.
      *
      * @throws RuntimeException if {@linkplain #method} is in compiler queue or
      *                          is compiled, or if {@linkplain #method} has zero
      *                          compilation level.
      */
     protected final void checkNotCompiled() {
         if (WHITE_BOX.isMethodQueuedForCompilation(method)) {
             throw new RuntimeException(method + " must not be in queue");
         }
         if (WHITE_BOX.isMethodCompiled(method)) {
             throw new RuntimeException(method + " must be not compiled");
         }
         if (WHITE_BOX.getMethodCompilationLevel(method) != 0) {
             throw new RuntimeException(method + " comp_level must be == 0");
         }
     }
     /**
      * Checks, that {@linkplain #method} is compiled.
      *
      * @throws RuntimeException if {@linkplain #method} isn't in compiler queue
      *                          and isn't compiled, or if {@linkplain #method}
      *                          has nonzero compilation level
      */
     protected final void checkCompiled() {
         final long start = System.currentTimeMillis();
         waitBackgroundCompilation();
         if (WHITE_BOX.isMethodQueuedForCompilation(method)) {
             System.err.printf("Warning: %s is still in queue after %dms%n",
                     method, System.currentTimeMillis() - start);
             return;
         }
         if (!WHITE_BOX.isMethodCompiled(method)) {
             throw new RuntimeException(method + " must be compiled");
         }
         if (WHITE_BOX.getMethodCompilationLevel(method) == 0) {
             throw new RuntimeException(method + " comp_level must be != 0");
         }
     }
     /**
      * Waits for completion of background compilation of {@linkplain #method}.
      */
     protected final void waitBackgroundCompilation() {
         if (!BACKGROUND_COMPILATION) {
             return;
         }
         final Object obj = new Object();
         for (int i = 0; i < 10
                 && WHITE_BOX.isMethodQueuedForCompilation(method); ++i) {
             synchronized (obj) {
                 try {
                     obj.wait(1000);
                 } catch (InterruptedException e) {
                     Thread.currentThread().interrupt();
                 }
             }
         }
     }
     /**
      * Prints information about {@linkplain #method}.
      */
     protected final void printInfo() {
         System.out.printf("%n%s:%n", method);
         System.out.printf("\tcompilable:\t%b%n",
                 WHITE_BOX.isMethodCompilable(method));
         System.out.printf("\tcompiled:\t%b%n",
                 WHITE_BOX.isMethodCompiled(method));
         System.out.printf("\tcomp_level:\t%d%n",
                 WHITE_BOX.getMethodCompilationLevel(method));
         System.out.printf("\tin_queue:\t%b%n",
                 WHITE_BOX.isMethodQueuedForCompilation(method));
         System.out.printf("compile_queues_size:\t%d%n%n",
                 WHITE_BOX.getCompileQueuesSize());
     }
     /**
      * Executes testing.
      */
     protected abstract void test() throws Exception;
     /**
      * Tries to trigger compilation of {@linkplain #method} by call
      * {@linkplain #callable} enough times.
      *
      * @return accumulated result
      * @see #compile(int)
      */
     protected final int compile() {
         return compile(Math.max(COMPILE_THRESHOLD, 150000));
     }
     /**
      * Tries to trigger compilation of {@linkplain #method} by call
      * {@linkplain #callable} specified times.
      *
      * @param count invocation count
      * @return accumulated result
      */
     protected final int compile(int count) {
         int result = 0;
         Integer tmp;
         for (int i = 0; i < count; ++i) {
             try {
                 tmp = callable.call();
             } catch (Exception e) {
                 tmp = null;
             }
             result += tmp == null ? 0 : tmp;
         }
         System.out.println("method was invoked " + count + " times");
         return result;
     }
 }
 /**
  * Utility structure containing tested method and object to invoke it.
  */
 enum TestCase {
     /** constructor test case */
     CONSTRUCTOR_TEST(Helper.CONSTRUCTOR, Helper.CONSTRUCTOR_CALLABLE),
     /** method test case */
     METOD_TEST(Helper.METHOD, Helper.METHOD_CALLABLE),
     /** static method test case */
     STATIC_TEST(Helper.STATIC, Helper.STATIC_CALLABLE);
     /** tested method */
     final Executable executable;
     /** object to invoke {@linkplain #executable} */
     final Callable<Integer> callable;
     private TestCase(Executable executable, Callable<Integer> callable) {
         this.executable = executable;
         this.callable = callable;
     }
     private static class Helper {
         private static final Callable<Integer> CONSTRUCTOR_CALLABLE
                 = new Callable<Integer>() {
             @Override
             public Integer call() throws Exception {
                 return new Helper(1337).hashCode();
             }
         };
         private static final Callable<Integer> METHOD_CALLABLE
                 = new Callable<Integer>() {
             private final Helper helper = new Helper();
             @Override
             public Integer call() throws Exception {
                 return helper.method();
             }
         };
         private static final Callable<Integer> STATIC_CALLABLE
                 = new Callable<Integer>() {
             @Override
             public Integer call() throws Exception {
                 return staticMethod();
             }
         };
         private static final Constructor CONSTRUCTOR;
         private static final Method METHOD;
         private static final Method STATIC;
         static {
             try {
                 CONSTRUCTOR = Helper.class.getDeclaredConstructor(int.class);
             } catch (NoSuchMethodException | SecurityException e) {
                 throw new RuntimeException(
                         "exception on getting method Helper.<init>(int)", e);
             }
             try {
                 METHOD = Helper.class.getDeclaredMethod("method");
             } catch (NoSuchMethodException | SecurityException e) {
                 throw new RuntimeException(
                         "exception on getting method Helper.method()", e);
             }
             try {
                 STATIC = Helper.class.getDeclaredMethod("staticMethod");
             } catch (NoSuchMethodException | SecurityException e) {
                 throw new RuntimeException(
                         "exception on getting method Helper.staticMethod()", e);
             }
         }
         private static int staticMethod() {
             return 1138;
         }
         private int method() {
             return 42;
         }
         private final int x;
         public Helper() {
             x = 0;
         }
         private Helper(int x) {
             this.x = x;
         }
         @Override
         public int hashCode() {
             return x;
         }
     }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

test/compiler/whitebox/CompilerWhiteBoxTest.java@d1c9384eecb4 (annotated)

test/compiler/whitebox/CompilerWhiteBoxTest.java