org.graalvm.compiler.lir.aarch64

Class AArch64Move.StoreZeroOp

java.lang.Object

org.graalvm.compiler.lir.LIRInstruction

org.graalvm.compiler.lir.aarch64.AArch64LIRInstruction

org.graalvm.compiler.lir.aarch64.AArch64Move.StoreZeroOp

All Implemented Interfaces:

StandardOp.ImplicitNullCheck

Enclosing class:

AArch64Move

public static final class AArch64Move.StoreZeroOp
extends AArch64LIRInstruction

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 AArch64Kind	accessKind
protected AArch64AddressValue	addressValue
protected LIRFrameState	state
static LIRInstructionClass<AArch64Move.StoreZeroOp>	TYPE

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

ADDRESS_FLAGS, ALLOWED_FLAGS

Constructor Summary

Constructors

Constructor and Description
StoreZeroOp(AArch64Kind accessKind, AArch64AddressValue address, LIRFrameState state)

Method Summary

Modifier and Type	Method and Description
void	emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm)
int	emitMemAccess(CompilationResultBuilder crb, AArch64MacroAssembler masm) Emit the memory access.
boolean	makeNullCheckFor(Value value, LIRFrameState nullCheckState, int implicitNullCheckLimit)
protected boolean	mergingAllowed(CompilationResultBuilder crb, int memPosition) Checks whether the current memory access could be merged with the prior memory access.

Methods inherited from class org.graalvm.compiler.lir.aarch64.AArch64LIRInstruction

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

TYPE

public static final LIRInstructionClass<AArch64Move.StoreZeroOp> TYPE

accessKind

protected final AArch64Kind accessKind

addressValue

protected AArch64AddressValue addressValue

state

protected LIRFrameState state

Constructor Detail

StoreZeroOp

public StoreZeroOp(AArch64Kind accessKind,
                   AArch64AddressValue address,
                   LIRFrameState state)

Method Detail

emitMemAccess

public int emitMemAccess(CompilationResultBuilder crb,
                         AArch64MacroAssembler masm)

Emit the memory access.

Returns:

The buffer position before the memory access was issued. Normally this will be the same as the position of the memory access; however, if the memory access was merged with a previous access, then it will be the position after the access.

mergingAllowed

protected boolean mergingAllowed(CompilationResultBuilder crb,
                                 int memPosition)

Checks whether the current memory access could be merged with the prior memory access.

emitCode

public void emitCode(CompilationResultBuilder crb,
                     AArch64MacroAssembler masm)

Specified by:

emitCode in class AArch64LIRInstruction

makeNullCheckFor

public boolean makeNullCheckFor(Value value,
                                LIRFrameState nullCheckState,
                                int implicitNullCheckLimit)

Specified by:

makeNullCheckFor in interface StandardOp.ImplicitNullCheck