org.graalvm.compiler.lir

Class LIRFrameState

java.lang.Object

org.graalvm.compiler.lir.LIRFrameState

Direct Known Subclasses:

ImplicitLIRFrameState

public class LIRFrameState
extends Object

This class represents garbage collection and deoptimization information attached to a LIR instruction.

Field Summary

Fields

Modifier and Type	Field and Description
protected DebugInfo	debugInfo
LabelRef	exceptionEdge
static LIRFrameState	NO_CALLEE_SAVE_INFO
protected static EnumSet<LIRInstruction.OperandFlag>	STATE_FLAGS We filter out constant and illegal values ourself before calling the procedure, so LIRInstruction.OperandFlag.CONST and LIRInstruction.OperandFlag.ILLEGAL need not be set.
BytecodeFrame	topFrame

Constructor Summary

Constructors

Constructor and Description
LIRFrameState(BytecodeFrame topFrame, VirtualObject[] virtualObjects, LabelRef exceptionEdge)

Method Summary

Modifier and Type	Method and Description
DebugInfo	debugInfo()
void	forEachState(LIRInstruction inst, InstructionValueProcedure proc) Iterates the frame state and calls the InstructionValueProcedure for every variable.
IndexedValueMap	getLiveBasePointers()
boolean	hasDebugInfo()
void	initDebugInfo(FrameMap frameMap, boolean canHaveRegisters) Called by the register allocator to initialize the frame state.
protected void	processValues(LIRInstruction inst, JavaValue[] values, InstructionValueProcedure proc)
void	setLiveBasePointers(IndexedValueMap liveBasePointers)
String	toString()
void	visitEachState(LIRInstruction inst, InstructionValueConsumer proc) Iterates the frame state and calls the InstructionValueConsumer for every variable.
protected void	visitValues(LIRInstruction inst, JavaValue[] values, InstructionValueConsumer proc)

Methods inherited from class java.lang.Object

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

Field Detail

NO_CALLEE_SAVE_INFO

public static final LIRFrameState NO_CALLEE_SAVE_INFO

topFrame

public final BytecodeFrame topFrame

exceptionEdge

public final LabelRef exceptionEdge

debugInfo

protected DebugInfo debugInfo

STATE_FLAGS

protected static final EnumSet<LIRInstruction.OperandFlag> STATE_FLAGS

We filter out constant and illegal values ourself before calling the procedure, so LIRInstruction.OperandFlag.CONST and LIRInstruction.OperandFlag.ILLEGAL need not be set.

Constructor Detail

LIRFrameState

public LIRFrameState(BytecodeFrame topFrame,
                     VirtualObject[] virtualObjects,
                     LabelRef exceptionEdge)

Method Detail

hasDebugInfo

public boolean hasDebugInfo()

debugInfo

public DebugInfo debugInfo()

forEachState

public void forEachState(LIRInstruction inst,
                         InstructionValueProcedure proc)

Iterates the frame state and calls the InstructionValueProcedure for every variable.

Parameters:

proc - The procedure called for variables.

visitEachState

public void visitEachState(LIRInstruction inst,
                           InstructionValueConsumer proc)

Iterates the frame state and calls the InstructionValueConsumer for every variable.

Parameters:

proc - The procedure called for variables.

processValues

protected void processValues(LIRInstruction inst,
                             JavaValue[] values,
                             InstructionValueProcedure proc)

visitValues

protected void visitValues(LIRInstruction inst,
                           JavaValue[] values,
                           InstructionValueConsumer proc)

initDebugInfo

public void initDebugInfo(FrameMap frameMap,
                          boolean canHaveRegisters)

Called by the register allocator to initialize the frame state.

Parameters:

frameMap - The frame map.

canHaveRegisters - True if there can be any register map entries.

getLiveBasePointers

public IndexedValueMap getLiveBasePointers()

setLiveBasePointers

public void setLiveBasePointers(IndexedValueMap liveBasePointers)

toString

public String toString()

Overrides:

toString in class Object