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

Example 66 with ObjectReference

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

the class Barriers method floatFieldWrite.

/**
 * Barrier for writes of floats 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 floatFieldWrite(Object ref, float value, Offset offset, int locationMetadata) {
    if (NEEDS_FLOAT_GC_WRITE_BARRIER) {
        ObjectReference src = ObjectReference.fromObject(ref);
        Selected.Mutator.get().floatWrite(src, src.toAddress().plus(offset), value, offset.toWord(), Word.fromIntZeroExtend(locationMetadata), INSTANCE_FIELD);
    } else if (VM.VerifyAssertions)
        VM._assert(VM.NOT_REACHED);
}

Example 67 with ObjectReference

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

the class Barriers method objectFieldWrite.

/**
 * Barrier for writes of objects 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 objectFieldWrite(Object ref, Object value, Offset offset, int locationMetadata) {
    if (NEEDS_OBJECT_GC_WRITE_BARRIER) {
        ObjectReference src = ObjectReference.fromObject(ref);
        Selected.Mutator.get().objectReferenceWrite(src, src.toAddress().plus(offset), ObjectReference.fromObject(value), offset.toWord(), Word.fromIntZeroExtend(locationMetadata), INSTANCE_FIELD);
    } else if (VM.VerifyAssertions)
        VM._assert(VM.NOT_REACHED);
}

Example 68 with ObjectReference

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

the class Barriers method longArrayWrite.

/**
 * Barrier for writes of longs into arrays (i.e. lastore).
 *
 * @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 longArrayWrite(long[] ref, int index, long value) {
    if (NEEDS_LONG_GC_WRITE_BARRIER) {
        ObjectReference array = ObjectReference.fromObject(ref);
        Offset offset = Offset.fromIntZeroExtend(index << LOG_BYTES_IN_LONG);
        Selected.Mutator.get().longWrite(array, array.toAddress().plus(offset), value, offset.toWord(), Word.zero(), ARRAY_ELEMENT);
    } else if (VM.VerifyAssertions)
        VM._assert(VM.NOT_REACHED);
}

Example 69 with ObjectReference

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

the class Barriers method charArrayRead.

/**
 * Barrier for loads of chars from fields of arrays (i.e. caload).
 *
 * @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 char charArrayRead(char[] ref, int index) {
    if (NEEDS_CHAR_GC_READ_BARRIER) {
        ObjectReference array = ObjectReference.fromObject(ref);
        Offset offset = Offset.fromIntZeroExtend(index << LOG_BYTES_IN_CHAR);
        return Selected.Mutator.get().charRead(array, array.toAddress().plus(offset), offset.toWord(), Word.zero(), ARRAY_ELEMENT);
    } else if (VM.VerifyAssertions)
        VM._assert(VM.NOT_REACHED);
    return 0;
}

Example 70 with ObjectReference

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

the class Barriers method byteArrayWrite.

/**
 * Barrier for writes of bytes into arrays (i.e. bastore).
 *
 * @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 byteArrayWrite(byte[] ref, int index, byte value) {
    if (NEEDS_BYTE_GC_WRITE_BARRIER) {
        ObjectReference array = ObjectReference.fromObject(ref);
        Offset offset = Offset.fromIntZeroExtend(index);
        Selected.Mutator.get().byteWrite(array, array.toAddress().plus(offset), value, offset.toWord(), Word.zero(), ARRAY_ELEMENT);
    } else if (VM.VerifyAssertions)
        VM._assert(VM.NOT_REACHED);
}