jdk8-mips64-public/hotspot: test/compiler/whitebox/IsMethodCompilableTest.java@4b2eebe03f93

8011971: WB API doesn't accept j.l.reflect.Constructor
Reviewed-by: kvn, vlivanov

     1 /*

     2  * Copyright (c) 2013, 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  */

    24 /*

    25  * @test IsMethodCompilableTest

    26  * @bug 8007270

    27  * @library /testlibrary /testlibrary/whitebox

    28  * @build IsMethodCompilableTest

    29  * @run main ClassFileInstaller sun.hotspot.WhiteBox

    30  * @run main/othervm/timeout=600 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI IsMethodCompilableTest

    31  * @summary testing of WB::isMethodCompilable()

    32  * @author igor.ignatyev@oracle.com

    33  */

    34 public class IsMethodCompilableTest extends CompilerWhiteBoxTest {

    35     /**

    36      * Value of {@code -XX:PerMethodRecompilationCutoff}

    37      */

    38     protected static final long PER_METHOD_RECOMPILATION_CUTOFF;

    40     static {

    41         long tmp = Long.parseLong(

    42                 getVMOption("PerMethodRecompilationCutoff", "400"));

    43         if (tmp == -1) {

    44             PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */;

    45         } else {

    46             PER_METHOD_RECOMPILATION_CUTOFF = 1 + (0xFFFFFFFFL & tmp);

    47         }

    48     }

    50     public static void main(String[] args) throws Exception {

    51         for (TestCase test : TestCase.values()) {

    52             new IsMethodCompilableTest(test).runTest();

    53         }

    54     }

    56     public IsMethodCompilableTest(TestCase testCase) {

    57         super(testCase);

    58         // to prevent inlining of #method

    59         WHITE_BOX.testSetDontInlineMethod(method, true);

    60     }

    62     /**

    63      * Tests {@code WB::isMethodCompilable()} by recompilation of tested method

    64      * 'PerMethodRecompilationCutoff' times and checks compilation status. Also

    65      * checks that WB::clearMethodState() clears no-compilable flags.

    66      *

    67      * @throws Exception if one of the checks fails.

    68      */

    69     @Override

    70     protected void test() throws Exception {

    71         if (!WHITE_BOX.isMethodCompilable(method)) {

    72             throw new RuntimeException(method + " must be compilable");

    73         }

    74         System.out.println("PerMethodRecompilationCutoff = "

    75                 + PER_METHOD_RECOMPILATION_CUTOFF);

    76         if (PER_METHOD_RECOMPILATION_CUTOFF == -1) {

    77             System.err.println(

    78                     "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");

    79             return;

    80         }

    82         // deoptimize 'PerMethodRecompilationCutoff' times and clear state

    83         for (long i = 0L, n = PER_METHOD_RECOMPILATION_CUTOFF - 1; i < n; ++i) {

    84             compileAndDeoptimize();

    85         }

    86         if (!WHITE_BOX.isMethodCompilable(method)) {

    87             throw new RuntimeException(method + " is not compilable after "

    88                     + (PER_METHOD_RECOMPILATION_CUTOFF - 1) + " iterations");

    89         }

    90         WHITE_BOX.clearMethodState(method);

    92         // deoptimize 'PerMethodRecompilationCutoff' + 1 times

    93         long i;

    94         for (i = 0L; i < PER_METHOD_RECOMPILATION_CUTOFF

    95                 && WHITE_BOX.isMethodCompilable(method); ++i) {

    96             compileAndDeoptimize();

    97         }

    98         if (i != PER_METHOD_RECOMPILATION_CUTOFF) {

    99             throw new RuntimeException(method + " is not compilable after "

   100                     + i + " iterations, but must only after "

   101                     + PER_METHOD_RECOMPILATION_CUTOFF);

   102         }

   103         if (WHITE_BOX.isMethodCompilable(method)) {

   104             throw new RuntimeException(method + " is still compilable after "

   105                     + PER_METHOD_RECOMPILATION_CUTOFF + " iterations");

   106         }

   107         compile();

   108         checkNotCompiled();

   110         // WB.clearMethodState() must reset no-compilable flags

   111         WHITE_BOX.clearMethodState(method);

   112         if (!WHITE_BOX.isMethodCompilable(method)) {

   113             throw new RuntimeException(method

   114                     + " is not compilable after clearMethodState()");

   115         }

   116         compile();

   117         checkCompiled();

   118     }

   120     private void compileAndDeoptimize() throws Exception {

   121         compile();

   122         waitBackgroundCompilation();

   123         WHITE_BOX.deoptimizeMethod(method);

   124     }

   125 }

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