jdk8-mips64-public/hotspot: test/compiler/whitebox/IsMethodCompilableTest.java@49b5160951dd (annotated)

test/compiler/whitebox/IsMethodCompilableTest.java@49b5160951dd (annotated)

test/compiler/whitebox/IsMethodCompilableTest.java

Thu, 17 Apr 2014 16:09:08 -0700

author: amurillo
date: Thu, 17 Apr 2014 16:09:08 -0700
changeset 6635: 49b5160951dd
parent 6612: 5e6f84e7a942
child 6725: e5d5e7922283
permissions: -rw-r--r--

Added tag hs25.20-b11 for changeset b6a2ba7d3ea7

 /*
  * Copyright (c) 2013, 2014, 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 IsMethodCompilableTest
  * @bug 8007270 8006683 8007288 8022832
  * @library /testlibrary /testlibrary/whitebox /testlibrary/com/oracle/java/testlibrary
  * @build IsMethodCompilableTest
  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  * @run main ClassFileInstaller com.oracle.java.testlibrary.Platform
  * @run main/othervm/timeout=2400 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:PerMethodRecompilationCutoff=3 -XX:CompileCommand=compileonly,SimpleTestCase$Helper::* IsMethodCompilableTest
  * @summary testing of WB::isMethodCompilable()
  * @author igor.ignatyev@oracle.com
  */
 import com.oracle.java.testlibrary.Platform;
 public class IsMethodCompilableTest extends CompilerWhiteBoxTest {
     /**
      * Value of {@code -XX:PerMethodRecompilationCutoff}
      */
     protected static final long PER_METHOD_RECOMPILATION_CUTOFF;
     static {
         long tmp = Long.parseLong(
                 getVMOption("PerMethodRecompilationCutoff", "400"));
         if (tmp == -1) {
             PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */;
         } else {
             PER_METHOD_RECOMPILATION_CUTOFF = (0xFFFFFFFFL & tmp);
         }
     }
     public static void main(String[] args) throws Exception {
         CompilerWhiteBoxTest.main(IsMethodCompilableTest::new, args);
     }
     private IsMethodCompilableTest(TestCase testCase) {
         super(testCase);
         // to prevent inlining of #method
         WHITE_BOX.testSetDontInlineMethod(method, true);
     }
     /**
      * Tests {@code WB::isMethodCompilable()} by recompilation of tested method
      * 'PerMethodRecompilationCutoff' times and checks compilation status. Also
      * checks that WB::clearMethodState() clears no-compilable flags. Only
      * applicable to c2 compiled methods.
      *
      * @throws Exception if one of the checks fails.
      */
     @Override
     protected void test() throws Exception {
         // Only c2 compilations can be disabled through PerMethodRecompilationCutoff
         if (!Platform.isServer()) {
             return;
         }
         if (skipXcompOSR()) {
           return;
         }
         if (!isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) {
             throw new RuntimeException(method + " must be compilable");
         }
         System.out.println("PerMethodRecompilationCutoff = "
                 + PER_METHOD_RECOMPILATION_CUTOFF);
         if (PER_METHOD_RECOMPILATION_CUTOFF == -1) {
             System.err.println(
                     "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
             return;
         }
         // deoptimize 'PerMethodRecompilationCutoff' times
         for (long attempts = 0, successes = 0;
                (successes < PER_METHOD_RECOMPILATION_CUTOFF)  &&
                (attempts < PER_METHOD_RECOMPILATION_CUTOFF*2) &&
                isCompilable(COMP_LEVEL_FULL_OPTIMIZATION); attempts++) {
             if (compileAndDeoptimize() == COMP_LEVEL_FULL_OPTIMIZATION) {
                 successes++;
             }
         }
         if (!testCase.isOsr() && !isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) {
             // in osr test case count of deopt maybe more than iterations
             throw new RuntimeException(method + " is not compilable after "
                     + PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
         }
         // Now compile once more
         compileAndDeoptimize();
         if (isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) {
             throw new RuntimeException(method + " is still compilable after "
                     + PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
         }
         checkNotCompiled();
         compile();
         waitBackgroundCompilation();
         checkNotCompiled(COMP_LEVEL_FULL_OPTIMIZATION);
         // WB.clearMethodState() must reset no-compilable flags
         WHITE_BOX.clearMethodState(method);
         if (!isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) {
             throw new RuntimeException(method
                     + " is not compilable after clearMethodState()");
         }
         compile();
         checkCompiled();
     }
     private int compileAndDeoptimize() throws Exception {
         compile();
         waitBackgroundCompilation();
         int compLevel = getCompLevel();
         deoptimize();
         return compLevel;
     }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

test/compiler/whitebox/IsMethodCompilableTest.java@49b5160951dd (annotated)

test/compiler/whitebox/IsMethodCompilableTest.java