org.graalvm.compiler.core.amd64

Class AMD64MoveFactory

java.lang.Object

org.graalvm.compiler.lir.gen.MoveFactory

org.graalvm.compiler.core.amd64.AMD64MoveFactoryBase

org.graalvm.compiler.core.amd64.AMD64MoveFactory

Direct Known Subclasses:

AMD64HotSpotMoveFactory

public abstract class AMD64MoveFactory
extends AMD64MoveFactoryBase

Nested Class Summary

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

MoveFactory.BackupSlotProvider, MoveFactory.RegisterBackupPair

Constructor Summary

Constructors

Constructor and Description
AMD64MoveFactory(MoveFactory.BackupSlotProvider backupSlotProvider)

Method Summary

Modifier and Type	Method and Description
boolean	allowConstantToStackMove(Constant constant)
boolean	canInlineConstant(Constant con) Checks whether the supplied constant can be used without loading it into a register for most operations, i.e., for commonly used arithmetic, logical, and comparison operations.
AMD64LIRInstruction	createLoad(AllocatableValue dst, Constant src)
AMD64LIRInstruction	createMove(AllocatableValue dst, Value src)
LIRInstruction	createStackLoad(AllocatableValue result, Constant input)
AMD64LIRInstruction	createStackMove(AllocatableValue result, AllocatableValue input, Register scratchRegister, AllocatableValue backupSlot)
boolean	mayEmbedConstantLoad(Constant constant) Checks whether the loading of the supplied constant can be deferred until usage.

Methods inherited from class org.graalvm.compiler.core.amd64.AMD64MoveFactoryBase

createStackMove

Methods inherited from class java.lang.Object

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

Constructor Detail

AMD64MoveFactory

public AMD64MoveFactory(MoveFactory.BackupSlotProvider backupSlotProvider)

Method Detail

canInlineConstant

public boolean canInlineConstant(Constant con)

Description copied from class: MoveFactory

Checks whether the supplied constant can be used without loading it into a register for most operations, i.e., for commonly used arithmetic, logical, and comparison operations.

Specified by:

canInlineConstant in class MoveFactory

Parameters:

con - The constant to check.

Returns:

True if the constant can be used directly, false if the constant needs to be in a register.

mayEmbedConstantLoad

public boolean mayEmbedConstantLoad(Constant constant)

Description copied from class: MoveFactory

Checks whether the loading of the supplied constant can be deferred until usage.

Overrides:

mayEmbedConstantLoad in class MoveFactory

allowConstantToStackMove

public boolean allowConstantToStackMove(Constant constant)

Specified by:

allowConstantToStackMove in class MoveFactory

Parameters:

constant - The constant that might be moved to a stack slot.

Returns:

true if constant to stack moves are supported for this constant.

createMove

public AMD64LIRInstruction createMove(AllocatableValue dst,
                                      Value src)

Specified by:

createMove in class MoveFactory

createStackMove

public AMD64LIRInstruction createStackMove(AllocatableValue result,
                                           AllocatableValue input,
                                           Register scratchRegister,
                                           AllocatableValue backupSlot)

Specified by:

createStackMove in class AMD64MoveFactoryBase

createLoad

public AMD64LIRInstruction createLoad(AllocatableValue dst,
                                      Constant src)

Specified by:

createLoad in class MoveFactory

createStackLoad

public LIRInstruction createStackLoad(AllocatableValue result,
                                      Constant input)

Specified by:

createStackLoad in class MoveFactory