org.graalvm.compiler.lir.framemap

Class FrameMapBuilderImpl

java.lang.Object

org.graalvm.compiler.lir.framemap.FrameMapBuilder

org.graalvm.compiler.lir.framemap.FrameMapBuilderTool

org.graalvm.compiler.lir.framemap.FrameMapBuilderImpl

Direct Known Subclasses:

AArch64FrameMapBuilder, AMD64FrameMapBuilder

public class FrameMapBuilderImpl
extends FrameMapBuilderTool

A FrameMapBuilder that records allocation.

Constructor Summary

Constructors

Constructor and Description
FrameMapBuilderImpl(FrameMap frameMap, CodeCacheProvider codeCache, RegisterConfig registerConfig)

Method Summary

Modifier and Type	Method and Description
VirtualStackSlot	allocateSpillSlot(<any> kind) Reserves a spill slot in the frame of the method being compiled.
VirtualStackSlot	allocateStackMemory(int sizeInBytes, int alignmentInBytes) Reserves a contiguous and aligned range of memory in the frame of the method being compiled.
FrameMap	buildFrameMap(LIRGenerationResult res) Creates a FrameMap based on the information collected by this FrameMapBuilder.
void	callsMethod(CallingConvention cc) Informs the frame map that the compiled code calls a particular method, which may need stack space for outgoing arguments.
CodeCacheProvider	getCodeCache()
FrameMap	getFrameMap()
int	getNumberOfStackSlots() Returns the number of VirtualStackSlots created by this FrameMapBuilder.
RegisterConfig	getRegisterConfig()
List<VirtualStackSlot>	getStackSlots()

Methods inherited from class java.lang.Object

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

Constructor Detail

FrameMapBuilderImpl

public FrameMapBuilderImpl(FrameMap frameMap,
                           CodeCacheProvider codeCache,
                           RegisterConfig registerConfig)

Method Detail

allocateSpillSlot

public VirtualStackSlot allocateSpillSlot(<any> kind)

Description copied from class: FrameMapBuilder

Reserves a spill slot in the frame of the method being compiled. The returned slot is aligned on its natural alignment, i.e., an 8-byte spill slot is aligned at an 8-byte boundary, unless overridden by a subclass.

Specified by:

allocateSpillSlot in class FrameMapBuilder

Parameters:

kind - The kind of the spill slot to be reserved.

Returns:

A spill slot denoting the reserved memory area.

allocateStackMemory

public VirtualStackSlot allocateStackMemory(int sizeInBytes,
                                            int alignmentInBytes)

Description copied from class: FrameMapBuilder

Reserves a contiguous and aligned range of memory in the frame of the method being compiled.

Specified by:

allocateStackMemory in class FrameMapBuilder

Parameters:

sizeInBytes - the number of bytes to reserve. Must be > 0.

alignmentInBytes - the required alignment of the memory. Must be > 0, a power of 2, and not exceed the OS stack frame alignment.

Returns:

the first reserved stack slot (i.e., at the lowest address)

getRegisterConfig

public RegisterConfig getRegisterConfig()

Specified by:

getRegisterConfig in class FrameMapBuilder

getCodeCache

public CodeCacheProvider getCodeCache()

Specified by:

getCodeCache in class FrameMapBuilder

getFrameMap

public FrameMap getFrameMap()

Specified by:

getFrameMap in class FrameMapBuilderTool

getNumberOfStackSlots

public int getNumberOfStackSlots()

Description copied from class: FrameMapBuilderTool

Returns the number of VirtualStackSlots created by this FrameMapBuilder. Can be used as an upper bound for an array indexed by VirtualStackSlot.getId().

Specified by:

getNumberOfStackSlots in class FrameMapBuilderTool

callsMethod

public void callsMethod(CallingConvention cc)

Description copied from class: FrameMapBuilder

Informs the frame map that the compiled code calls a particular method, which may need stack space for outgoing arguments.

Specified by:

callsMethod in class FrameMapBuilder

Parameters:

cc - The calling convention for the called method.

buildFrameMap

public FrameMap buildFrameMap(LIRGenerationResult res)

Description copied from class: FrameMapBuilder

Creates a FrameMap based on the information collected by this FrameMapBuilder.

Specified by:

buildFrameMap in class FrameMapBuilder

getStackSlots

public List<VirtualStackSlot> getStackSlots()

Specified by:

getStackSlots in class FrameMapBuilderTool