1 /*

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     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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     7  * published by the Free Software Foundation.

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     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).

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    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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    23 

    24 /*

    25  * @test InterpreterMethodEntries

    26  * @bug 8169711

    27  * @summary Test interpreter method entries for intrinsics with CDS (class data sharing)

    28  *          and different settings of the intrinsic flag during dump/use of the archive.

    29  * @library /test/lib

    30  * @modules java.base/jdk.internal.misc

    31  *          java.management

    32  * @run main TestInterpreterMethodEntries

    33  */

    34 

    35 import java.lang.Math;

    36 import java.util.zip.CRC32;

    37 import java.util.zip.CRC32C;

    38 import jdk.test.lib.process.ProcessTools;

    39 import jdk.test.lib.process.OutputAnalyzer;

    40 

    41 public class TestInterpreterMethodEntries {

    42 

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

    44         if (args.length == 0) {

    45           // Dump and use shared archive with different flag combinations

    46           dumpAndUseSharedArchive("+", "-");

    47           dumpAndUseSharedArchive("-", "+");

    48         } else {

    49           // Call intrinsified java.lang.Math::fma()

    50           Math.fma(1.0, 2.0, 3.0);

    51 

    52           byte[] buffer = new byte[256];

    53           // Call intrinsified java.util.zip.CRC32::update()

    54           CRC32 crc32 = new CRC32();

    55           crc32.update(buffer, 0, 256);

    56 

    57           // Call intrinsified java.util.zip.CRC32C::updateBytes(..)

    58           CRC32C crc32c = new CRC32C();

    59           crc32c.update(buffer, 0, 256);

    60         }

    61     }

    62 

    63     private static void dumpAndUseSharedArchive(String dump, String use) throws Exception {

    64         String dumpFMA    = "-XX:" + dump + "UseFMA";

    65         String dumpCRC32  = "-XX:" + dump + "UseCRC32Intrinsics";

    66         String dumpCRC32C = "-XX:" + dump + "UseCRC32CIntrinsics";

    67         String useFMA     = "-XX:" + use  + "UseFMA";

    68         String useCRC32   = "-XX:" + use  + "UseCRC32Intrinsics";

    69         String useCRC32C  = "-XX:" + use  + "UseCRC32CIntrinsics";

    70 

    71         // Dump shared archive

    72         String filename = "./TestInterpreterMethodEntries" + dump + ".jsa";

    73         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

    74             "-XX:+UnlockDiagnosticVMOptions",

    75             "-XX:SharedArchiveFile=" + filename,

    76             "-Xshare:dump",

    77             dumpFMA, dumpCRC32, dumpCRC32C);

    78         OutputAnalyzer output = new OutputAnalyzer(pb.start());

    79         CDSTestUtils.checkDump(output);

    80 

    81         // Use shared archive

    82         pb = ProcessTools.createJavaProcessBuilder(

    83             "-XX:+UnlockDiagnosticVMOptions",

    84             "-XX:SharedArchiveFile=" + filename,

    85             "-Xshare:on",

    86             useFMA, useCRC32, useCRC32C,

    87             "TestInterpreterMethodEntries", "run");

    88         output = new OutputAnalyzer(pb.start());

    89         if (CDSTestUtils.isUnableToMap(output)) {

    90           System.out.println("Unable to map shared archive: test did not complete; assumed PASS");

    91           return;

    92         }

    93         output.shouldHaveExitValue(0);

    94     }

    95 }

    96