com.oracle.graal.hotspot.amd64

Class AMD64HotSpotRegisterAllocationConfig

java.lang.Object

com.oracle.graal.compiler.common.alloc.RegisterAllocationConfig

com.oracle.graal.hotspot.amd64.AMD64HotSpotRegisterAllocationConfig

class AMD64HotSpotRegisterAllocationConfig
extends RegisterAllocationConfig

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.graal.compiler.common.alloc.RegisterAllocationConfig

RegisterAllocationConfig.AllocatableRegisters

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static Register[]	registerAllocationOrder Specify priority of register selection within phases of register allocation.

Fields inherited from class com.oracle.graal.compiler.common.alloc.RegisterAllocationConfig

ALL_REGISTERS, registerConfig

Constructor Summary

Constructors

Constructor and Description
AMD64HotSpotRegisterAllocationConfig(RegisterConfig registerConfig)

Method Summary

Modifier and Type	Method and Description
protected RegisterAllocationConfig.AllocatableRegisters	createAllocatableRegisters(Register[] registers)
protected Register[]	initAllocatable(Register[] registers)

Methods inherited from class com.oracle.graal.compiler.common.alloc.RegisterAllocationConfig

getAllocatableRegisters, getAllocatableRegisters, getRegisterConfig

Methods inherited from class java.lang.Object

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

Field Detail

registerAllocationOrder

static final Register[] registerAllocationOrder

Specify priority of register selection within phases of register allocation. Highest priority is first. A useful heuristic is to give registers a low priority when they are required by machine instructions, like EAX and EDX on I486, and choose no-save registers before save-on-call, & save-on-call before save-on-entry. Registers which participate in fixed calling sequences should come last. Registers which are used as pairs must fall on an even boundary. Adopted from x86_64.ad.

Constructor Detail

AMD64HotSpotRegisterAllocationConfig

public AMD64HotSpotRegisterAllocationConfig(RegisterConfig registerConfig)

Method Detail

initAllocatable

protected Register[] initAllocatable(Register[] registers)

Overrides:

initAllocatable in class RegisterAllocationConfig

createAllocatableRegisters

protected RegisterAllocationConfig.AllocatableRegisters createAllocatableRegisters(Register[] registers)

Overrides:

createAllocatableRegisters in class RegisterAllocationConfig