org.graalvm.compiler.lir.amd64

Class AMD64Move.PointerCompressionOp

java.lang.Object

org.graalvm.compiler.lir.LIRInstruction

org.graalvm.compiler.lir.amd64.AMD64LIRInstruction

org.graalvm.compiler.lir.amd64.AMD64Move.PointerCompressionOp

Direct Known Subclasses:

AMD64Move.CompressPointerOp, AMD64Move.UncompressPointerOp

Enclosing class:

AMD64Move

public abstract static class AMD64Move.PointerCompressionOp
extends AMD64LIRInstruction

Nested Class Summary

Nested classes/interfaces inherited from class org.graalvm.compiler.lir.LIRInstruction

LIRInstruction.Alive, LIRInstruction.Def, LIRInstruction.OperandFlag, LIRInstruction.OperandMode, LIRInstruction.State, LIRInstruction.Temp, LIRInstruction.Use

Field Summary

Fields

Modifier and Type	Field and Description
protected CompressEncoding	encoding
protected LIRKindTool	lirKindTool
protected boolean	nonNull

Fields inherited from class org.graalvm.compiler.lir.amd64.AMD64LIRInstruction

TYPE

Fields inherited from class org.graalvm.compiler.lir.LIRInstruction

ADDRESS_FLAGS, ALLOWED_FLAGS

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	PointerCompressionOp(LIRInstructionClass<? extends AMD64Move.PointerCompressionOp> type, AllocatableValue result, Value input, AllocatableValue baseRegister, CompressEncoding encoding, boolean nonNull, LIRKindTool lirKindTool)

Method Summary

Modifier and Type	Method and Description
static void	emitUncompressWithBaseRegister(AMD64MacroAssembler masm, Register inputAndResultReg, Register baseReg, int shift, boolean preserveFlagsRegister) Emits code to uncompress the compressed oop in inputAndResultReg by left shifting it shift bits, adding it to baseReg and storing the result back in inputAndResultReg.
static void	emitUncompressWithBaseRegister(AMD64MacroAssembler masm, Register resultReg, Register baseReg, Register inputReg, int shift, boolean preserveFlagsRegister) Emits code to uncompress the compressed oop in inputReg by left shifting it shift bits, adding it to baseReg and storing the result in resultReg.
protected Register	getBaseRegister()
Value	getInput()
AllocatableValue	getResult()
protected Register	getResultRegister()
protected int	getShift()
static boolean	hasBase(CompressEncoding encoding)
protected void	move(LIRKind kind, CompilationResultBuilder crb, AMD64MacroAssembler masm) Emits code to move input to result.

Methods inherited from class org.graalvm.compiler.lir.amd64.AMD64LIRInstruction

emitCode, emitCode

Methods inherited from class org.graalvm.compiler.lir.LIRInstruction

addStackSlotsToTemporaries, destroysCallerSavedRegisters, forEachAlive, forEachAlive, forEachInput, forEachInput, forEachOutput, forEachOutput, forEachRegisterHint, forEachRegisterHint, forEachState, forEachState, forEachState, forEachState, forEachTemp, forEachTemp, getComment, getLIRInstructionClass, getPosition, hashCode, hasOperands, hasState, id, isLoadConstantOp, isMoveOp, isValueMoveOp, name, needsClearUpperVectorRegisters, setComment, setId, setPosition, toString, toString, toStringWithIdPrefix, verify, visitEachAlive, visitEachAlive, visitEachInput, visitEachInput, visitEachOutput, visitEachOutput, visitEachState, visitEachState, visitEachTemp, visitEachTemp

Methods inherited from class java.lang.Object

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

Field Detail

lirKindTool

protected final LIRKindTool lirKindTool

encoding

protected final CompressEncoding encoding

nonNull

protected final boolean nonNull

Constructor Detail

PointerCompressionOp

protected PointerCompressionOp(LIRInstructionClass<? extends AMD64Move.PointerCompressionOp> type,
                               AllocatableValue result,
                               Value input,
                               AllocatableValue baseRegister,
                               CompressEncoding encoding,
                               boolean nonNull,
                               LIRKindTool lirKindTool)

Method Detail

hasBase

public static boolean hasBase(CompressEncoding encoding)

getInput

public final Value getInput()

getResult

public final AllocatableValue getResult()

getResultRegister

protected final Register getResultRegister()

getBaseRegister

protected final Register getBaseRegister()

getShift

protected final int getShift()

move

protected final void move(LIRKind kind,
                          CompilationResultBuilder crb,
                          AMD64MacroAssembler masm)

Emits code to move input to result.

emitUncompressWithBaseRegister

public static void emitUncompressWithBaseRegister(AMD64MacroAssembler masm,
                                                  Register inputAndResultReg,
                                                  Register baseReg,
                                                  int shift,
                                                  boolean preserveFlagsRegister)

Emits code to uncompress the compressed oop in inputAndResultReg by left shifting it shift bits, adding it to baseReg and storing the result back in inputAndResultReg.

emitUncompressWithBaseRegister

public static void emitUncompressWithBaseRegister(AMD64MacroAssembler masm,
                                                  Register resultReg,
                                                  Register baseReg,
                                                  Register inputReg,
                                                  int shift,
                                                  boolean preserveFlagsRegister)

Emits code to uncompress the compressed oop in inputReg by left shifting it shift bits, adding it to baseReg and storing the result in resultReg.