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/*

 * @test InterpreterMethodEntries

 * @bug 8169711

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

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

 * @library /test/lib

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

 *          java.management

 * @run main TestInterpreterMethodEntries

 */

import java.lang.Math;

import java.util.zip.CRC32;

import java.util.zip.CRC32C;

import jdk.test.lib.process.ProcessTools;

import jdk.test.lib.process.OutputAnalyzer;

public class TestInterpreterMethodEntries {

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

        if (args.length == 0) {

          // Dump and use shared archive with different flag combinations

          dumpAndUseSharedArchive("+", "-");

          dumpAndUseSharedArchive("-", "+");

        } else {

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

          Math.fma(1.0, 2.0, 3.0);

          byte[] buffer = new byte[256];

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

          CRC32 crc32 = new CRC32();

          crc32.update(buffer, 0, 256);

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

          CRC32C crc32c = new CRC32C();

          crc32c.update(buffer, 0, 256);

        }

    }

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

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

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

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

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

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

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

        // Dump shared archive

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

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

            "-XX:+UnlockDiagnosticVMOptions",

            "-XX:SharedArchiveFile=" + filename,

            "-Xshare:dump",

            dumpFMA, dumpCRC32, dumpCRC32C);

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

        CDSTestUtils.checkDump(output);

        // Use shared archive

        pb = ProcessTools.createJavaProcessBuilder(

            "-XX:+UnlockDiagnosticVMOptions",

            "-XX:SharedArchiveFile=" + filename,

            "-Xshare:on",

            useFMA, useCRC32, useCRC32C,

            "TestInterpreterMethodEntries", "run");

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

        if (CDSTestUtils.isUnableToMap(output)) {

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

          return;

        }

        output.shouldHaveExitValue(0);

    }

}