org.graalvm.compiler.lir.asm

Class DataBuilder

java.lang.Object

org.graalvm.compiler.lir.asm.DataBuilder

Direct Known Subclasses:

HotSpotDataBuilder

public abstract class DataBuilder
extends Object

Constructor Summary

Constructors

Constructor and Description
DataBuilder()

Method Summary

Modifier and Type	Method and Description
boolean	canForceAlignmentOf(int sizeInBytes) Determines whether a data constant can be forced to be aligned by sizeInBytes.
abstract DataSection.Data	createDataItem(Constant c)
DataSection.Data	createMultiDataItem(Constant... constants)
DataSection.Data	createPackedDataItem(DataSection.Data[] nested)
DataSection.Data	createPackedDataItem(int alignment, int size, DataSection.Data[] nested)
DataSection.Data	createSerializableData(SerializableConstant constant)
DataSection.Data	createSerializableData(SerializableConstant constant, int alignment)
DataSection.Data	createZeroData(int alignment, int size)
int	ensureValidDataAlignment(int requestedAlignment) Gets the alignment supported by the runtime for requestedAlignment.
int	getMaxSupportedAlignment()
void	updateAlignment(DataSection.Data data, int newAlignment) Updates the alignment of the given data element and ensures that it is actually supported by the runtime.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataBuilder

public DataBuilder()

Method Detail

createDataItem

public abstract DataSection.Data createDataItem(Constant c)

createSerializableData

public DataSection.Data createSerializableData(SerializableConstant constant,
                                               int alignment)

createSerializableData

public DataSection.Data createSerializableData(SerializableConstant constant)

createZeroData

public DataSection.Data createZeroData(int alignment,
                                       int size)

createPackedDataItem

public DataSection.Data createPackedDataItem(int alignment,
                                             int size,
                                             DataSection.Data[] nested)

createPackedDataItem

public DataSection.Data createPackedDataItem(DataSection.Data[] nested)

createMultiDataItem

public DataSection.Data createMultiDataItem(Constant... constants)

ensureValidDataAlignment

public int ensureValidDataAlignment(int requestedAlignment)

Gets the alignment supported by the runtime for requestedAlignment. The returned value will always be equal to or less than requestedAlignment.

Parameters:

requestedAlignment - The requested data alignment (in bytes)

Returns:

an alignment that is supported by the runtime

updateAlignment

public void updateAlignment(DataSection.Data data,
                            int newAlignment)

Updates the alignment of the given data element and ensures that it is actually supported by the runtime.

Parameters:

data - The data

newAlignment - The new alignment

getMaxSupportedAlignment

public int getMaxSupportedAlignment()

Returns:

the maximum alignment that is supported by the runtime

canForceAlignmentOf

public boolean canForceAlignmentOf(int sizeInBytes)

Determines whether a data constant can be forced to be aligned by sizeInBytes.

Parameters:

sizeInBytes - The requested alignment