Examples with UnsafeArrayTypeWriter org.graalvm.compiler.core.common.util.UnsafeArrayTypeWriter used on opensource projects

Example 1 with UnsafeArrayTypeWriter

use of org.graalvm.compiler.core.common.util.UnsafeArrayTypeWriter in project graal by oracle.

the class EncodedLineNumberTable method encode.

@Platforms(Platform.HOSTED_ONLY.class)
public static byte[] encode(LineNumberTable table) {
    if (table == null) {
        return null;
    }
    int[] lineNumbers = table.getLineNumbers();
    int[] bcis = table.getBcis();
    assert lineNumbers.length == bcis.length;
    UnsafeArrayTypeWriter encodingBuffer = UnsafeArrayTypeWriter.create(ByteArrayReader.supportsUnalignedMemoryAccess());
    int lastLineNumber = 0;
    int lastBci = 0;
    encodingBuffer.putUV(lineNumbers.length);
    for (int i = 0; i < lineNumbers.length; i++) {
        encodingBuffer.putSV(lineNumbers[i] - lastLineNumber);
        encodingBuffer.putSV(bcis[i] - lastBci);
        lastLineNumber = lineNumbers[i];
        lastBci = bcis[i];
    }
    byte[] encodedTable = encodingBuffer.toArray(new byte[TypeConversion.asS4(encodingBuffer.getBytesWritten())]);
    assert verifyTable(table, decode(encodedTable));
    return encodedTable;
}

Example 2 with UnsafeArrayTypeWriter

use of org.graalvm.compiler.core.common.util.UnsafeArrayTypeWriter in project graal by oracle.

the class CollectingObjectReferenceVisitor method encodeIPData.

private void encodeIPData() {
    IPData first = null;
    IPData prev = null;
    for (IPData cur : entries.values()) {
        if (first == null) {
            first = cur;
        } else {
            while (!TypeConversion.isU1(cur.ip - prev.ip)) {
                final IPData filler = new IPData();
                filler.ip = prev.ip + 0xFF;
                prev.next = filler;
                prev = filler;
            }
            prev.next = cur;
        }
        prev = cur;
    }
    long nextIndexIP = 0;
    UnsafeArrayTypeWriter indexBuffer = UnsafeArrayTypeWriter.create(ByteArrayReader.supportsUnalignedMemoryAccess());
    UnsafeArrayTypeWriter encodingBuffer = UnsafeArrayTypeWriter.create(ByteArrayReader.supportsUnalignedMemoryAccess());
    for (IPData data = first; data != null; data = data.next) {
        assert data.ip <= nextIndexIP;
        if (data.ip == nextIndexIP) {
            indexBuffer.putU4(encodingBuffer.getBytesWritten());
            nextIndexIP += CodeInfoDecoder.indexGranularity();
        }
        int entryFlags = 0;
        entryFlags = entryFlags | flagsForSizeEncoding(data) << CodeInfoDecoder.FS_SHIFT;
        entryFlags = entryFlags | flagsForExceptionOffset(data) << CodeInfoDecoder.EX_SHIFT;
        entryFlags = entryFlags | flagsForReferenceMapIndex(data) << CodeInfoDecoder.RM_SHIFT;
        entryFlags = entryFlags | flagsForDeoptFrameInfo(data) << CodeInfoDecoder.FI_SHIFT;
        encodingBuffer.putU1(entryFlags);
        encodingBuffer.putU1(data.next == null ? CodeInfoDecoder.DELTA_END_OF_TABLE : (data.next.ip - data.ip));
        writeSizeEncoding(encodingBuffer, data, entryFlags);
        writeExceptionOffset(encodingBuffer, data, entryFlags);
        writeReferenceMapIndex(encodingBuffer, data, entryFlags);
        writeDeoptFrameInfo(encodingBuffer, data, entryFlags);
    }
    codeInfoIndex = indexBuffer.toArray(newByteArray(TypeConversion.asU4(indexBuffer.getBytesWritten())));
    codeInfoEncodings = encodingBuffer.toArray(newByteArray(TypeConversion.asU4(encodingBuffer.getBytesWritten())));
}

Example 3 with UnsafeArrayTypeWriter

use of org.graalvm.compiler.core.common.util.UnsafeArrayTypeWriter in project graal by oracle.

the class DeoptimizationSourcePositionEncoder method encode.

public void encode(List<NodeSourcePosition> deoptimzationSourcePositions) {
    addObjectConstants(deoptimzationSourcePositions);
    deoptimizationObjectConstants = objectConstants.encodeAll(newObjectArray(objectConstants.getLength()));
    UnsafeArrayTypeWriter encodingBuffer = UnsafeArrayTypeWriter.create(ByteArrayReader.supportsUnalignedMemoryAccess());
    EconomicMap<NodeSourcePosition, Long> sourcePositionStartOffsets = EconomicMap.create(Equivalence.IDENTITY_WITH_SYSTEM_HASHCODE);
    deoptimizationStartOffsets = newIntArray(deoptimzationSourcePositions.size());
    encodeSourcePositions(deoptimzationSourcePositions, sourcePositionStartOffsets, encodingBuffer);
    deoptimizationEncodings = encodingBuffer.toArray(newByteArray(TypeConversion.asS4(encodingBuffer.getBytesWritten())));
    verifyEncoding(deoptimzationSourcePositions);
}

Example 4 with UnsafeArrayTypeWriter

use of org.graalvm.compiler.core.common.util.UnsafeArrayTypeWriter in project graal by oracle.

the class TypeWriterTest method test01.

private static void test01(boolean supportsUnalignedMemoryAccess) {
    UnsafeArrayTypeWriter writer = UnsafeArrayTypeWriter.create(supportsUnalignedMemoryAccess);
    putValues(writer);
    byte[] array = new byte[TypeConversion.asU4(writer.getBytesWritten())];
    writer.toArray(array);
    UnsafeArrayTypeReader reader = UnsafeArrayTypeReader.create(array, 0, supportsUnalignedMemoryAccess);
    checkValues(reader);
}

Example 5 with UnsafeArrayTypeWriter

use of org.graalvm.compiler.core.common.util.UnsafeArrayTypeWriter in project graal by oracle.

the class FrameInfoVerifier method encodeFrameDatas.

private void encodeFrameDatas() {
    UnsafeArrayTypeWriter encodingBuffer = UnsafeArrayTypeWriter.create(ByteArrayReader.supportsUnalignedMemoryAccess());
    for (FrameData data : allDebugInfos) {
        data.indexInEncodings = encodingBuffer.getBytesWritten();
        encodeFrameData(data, encodingBuffer);
    }
    frameInfoEncodings = encodingBuffer.toArray(newByteArray(TypeConversion.asS4(encodingBuffer.getBytesWritten())));
}