org.graalvm.compiler.core.common.alloc

Class RegisterAllocationConfig

java.lang.Object

org.graalvm.compiler.core.common.alloc.RegisterAllocationConfig

Direct Known Subclasses:

AArch64HotSpotRegisterAllocationConfig

public class RegisterAllocationConfig
extends Object

Configuration for register allocation. This is different to RegisterConfig as it only returns registers specified by GraalOptions.RegisterPressure.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RegisterAllocationConfig.AllocatableRegisters

Field Summary

Fields

Modifier and Type	Field and Description
protected RegisterConfig	registerConfig

Constructor Summary

Constructors

Constructor and Description
RegisterAllocationConfig(RegisterConfig registerConfig, String[] allocationRestrictedTo)

Method Summary

Modifier and Type	Method and Description
RegisterArray	getAllocatableRegisters() Gets the set of registers that can be used by the register allocator.
RegisterAllocationConfig.AllocatableRegisters	getAllocatableRegisters(PlatformKind kind) Gets the set of registers that can be used by the register allocator for a value of a particular kind.
RegisterCategory	getRegisterCategory(PlatformKind kind) Gets the RegisterCategory for the given PlatformKind.
RegisterConfig	getRegisterConfig()
protected RegisterArray	initAllocatable(RegisterArray registers)

Methods inherited from class java.lang.Object

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

Field Detail

registerConfig

protected final RegisterConfig registerConfig

Constructor Detail

RegisterAllocationConfig

public RegisterAllocationConfig(RegisterConfig registerConfig,
                                String[] allocationRestrictedTo)

Parameters:

allocationRestrictedTo - if not null, register allocation will be restricted to registers whose names appear in this array

Method Detail

initAllocatable

protected RegisterArray initAllocatable(RegisterArray registers)

getAllocatableRegisters

public RegisterAllocationConfig.AllocatableRegisters getAllocatableRegisters(PlatformKind kind)

Gets the set of registers that can be used by the register allocator for a value of a particular kind.

Returns:

null if there are no allocatable registers for the given kind

getRegisterCategory

public RegisterCategory getRegisterCategory(PlatformKind kind)

Gets the RegisterCategory for the given PlatformKind.

Returns:

null if there are no allocatable registers for the given kind

getAllocatableRegisters

public RegisterArray getAllocatableRegisters()

Gets the set of registers that can be used by the register allocator.

getRegisterConfig

public RegisterConfig getRegisterConfig()