org.graalvm.compiler.lir.amd64

Class AMD64ZapStackOp

java.lang.Object

org.graalvm.compiler.lir.LIRInstruction

org.graalvm.compiler.lir.amd64.AMD64LIRInstruction

org.graalvm.compiler.lir.amd64.AMD64ZapStackOp

public final class AMD64ZapStackOp
extends AMD64LIRInstruction

Writes well known garbage values to stack slots.

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
static LIRInstructionClass<AMD64ZapStackOp>	TYPE
protected StackSlot[]	zappedStack The stack slots that are zapped.
protected JavaConstant[]	zapValues The garbage values that are written to the stack.

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

ADDRESS_FLAGS, ALLOWED_FLAGS

Constructor Summary

Constructors

Constructor and Description
AMD64ZapStackOp(StackSlot[] zappedStack, JavaConstant[] zapValues)

Method Summary

Modifier and Type	Method and Description
void	emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm)

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

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<AMD64ZapStackOp> TYPE

zappedStack

protected final StackSlot[] zappedStack

The stack slots that are zapped.

zapValues

protected final JavaConstant[] zapValues

The garbage values that are written to the stack.

Constructor Detail

AMD64ZapStackOp

public AMD64ZapStackOp(StackSlot[] zappedStack,
                       JavaConstant[] zapValues)

Method Detail

emitCode

public void emitCode(CompilationResultBuilder crb,
                     AMD64MacroAssembler masm)

Specified by:

emitCode in class AMD64LIRInstruction