Examples with ObjectReference org.vmmagic.unboxed.ObjectReference used on opensource projects

Example 61 with ObjectReference

use of org.vmmagic.unboxed.ObjectReference in project JikesRVM by JikesRVM.

the class Barriers method byteArrayRead.

/**
 * Barrier for loads of bytes from fields of arrays (i.e. baload).
 *
 * @param ref the array containing the reference.
 * @param index the index into the array were the reference resides.
 * @return the value read from the array
 */
@Inline
@Entrypoint
public static byte byteArrayRead(byte[] ref, int index) {
    if (NEEDS_BYTE_GC_READ_BARRIER) {
        ObjectReference array = ObjectReference.fromObject(ref);
        Offset offset = Offset.fromIntZeroExtend(index);
        return Selected.Mutator.get().byteRead(array, array.toAddress().plus(offset), offset.toWord(), Word.zero(), ARRAY_ELEMENT);
    } else if (VM.VerifyAssertions)
        VM._assert(VM.NOT_REACHED);
    return 0;
}

Example 62 with ObjectReference

use of org.vmmagic.unboxed.ObjectReference in project JikesRVM by JikesRVM.

the class Barriers method booleanArrayRead.

/**
 * Barrier for loads of booleans from fields of arrays (i.e. aload).
 *
 * @param ref the array containing the reference.
 * @param index the index into the array were the reference resides.
 * @return the value read from the array
 */
@Inline
@Entrypoint
public static boolean booleanArrayRead(boolean[] ref, int index) {
    if (NEEDS_BOOLEAN_GC_READ_BARRIER) {
        ObjectReference array = ObjectReference.fromObject(ref);
        Offset offset = Offset.fromIntZeroExtend(index << LOG_BYTES_IN_BOOLEAN);
        return Selected.Mutator.get().booleanRead(array, array.toAddress().plus(offset), offset.toWord(), Word.zero(), ARRAY_ELEMENT);
    } else if (VM.VerifyAssertions)
        VM._assert(VM.NOT_REACHED);
    return false;
}

Example 63 with ObjectReference

use of org.vmmagic.unboxed.ObjectReference in project JikesRVM by JikesRVM.

the class Barriers method charArrayWrite.

/**
 * Barrier for writes of chars into arrays (i.e. castore).
 *
 * @param ref the array which is the subject of the astore
 * @param index the index into the array where the new reference
 * resides.  The index is the "natural" index into the array, for
 * example a[index].
 * @param value the value to be stored.
 */
@Inline
@Entrypoint
public static void charArrayWrite(char[] ref, int index, char value) {
    if (NEEDS_CHAR_GC_WRITE_BARRIER) {
        ObjectReference array = ObjectReference.fromObject(ref);
        Offset offset = Offset.fromIntZeroExtend(index << LOG_BYTES_IN_CHAR);
        Selected.Mutator.get().charWrite(array, array.toAddress().plus(offset), value, offset.toWord(), Word.zero(), ARRAY_ELEMENT);
    } else if (VM.VerifyAssertions)
        VM._assert(VM.NOT_REACHED);
}

Example 64 with ObjectReference

use of org.vmmagic.unboxed.ObjectReference in project JikesRVM by JikesRVM.

the class Barriers method intFieldWrite.

/**
 * Barrier for writes of ints into fields of instances (i.e. putfield).
 *
 * @param ref the object which is the subject of the putfield
 * @param value the new value for the field
 * @param offset the offset of the field to be modified
 * @param locationMetadata an int that encodes the source location being modified
 */
@Inline
@Entrypoint
public static void intFieldWrite(Object ref, int value, Offset offset, int locationMetadata) {
    if (NEEDS_INT_GC_WRITE_BARRIER) {
        ObjectReference src = ObjectReference.fromObject(ref);
        Selected.Mutator.get().intWrite(src, src.toAddress().plus(offset), value, offset.toWord(), Word.fromIntZeroExtend(locationMetadata), INSTANCE_FIELD);
    } else if (VM.VerifyAssertions)
        VM._assert(VM.NOT_REACHED);
}

Example 65 with ObjectReference

use of org.vmmagic.unboxed.ObjectReference in project JikesRVM by JikesRVM.

the class Barriers method shortArrayRead.

/**
 * Barrier for loads of shorts from fields of arrays (i.e. saload).
 *
 * @param ref the array containing the reference.
 * @param index the index into the array were the reference resides.
 * @return the value read from the array
 */
@Inline
@Entrypoint
public static short shortArrayRead(short[] ref, int index) {
    if (NEEDS_SHORT_GC_READ_BARRIER) {
        ObjectReference array = ObjectReference.fromObject(ref);
        Offset offset = Offset.fromIntZeroExtend(index << LOG_BYTES_IN_SHORT);
        return Selected.Mutator.get().shortRead(array, array.toAddress().plus(offset), offset.toWord(), Word.zero(), ARRAY_ELEMENT);
    } else if (VM.VerifyAssertions)
        VM._assert(VM.NOT_REACHED);
    return 0;
}