Safe Haskell	None
Language	Haskell2010

GHC.CmmToAsm.Reg.Linear.SPARC

Description

Free regs map for SPARC

Synopsis

data FreeRegs = FreeRegs !Word32 !Word32 !Word32
noFreeRegs :: FreeRegs
initFreeRegs :: Platform -> FreeRegs
getFreeRegs :: RegClass -> FreeRegs -> [RealReg]
allocateReg :: Platform -> RealReg -> FreeRegs -> FreeRegs
releaseReg :: Platform -> RealReg -> FreeRegs -> FreeRegs
bitMask :: Int -> Word32
showFreeRegs :: FreeRegs -> String

Documentation

data FreeRegs Source #

Constructors

FreeRegs !Word32 !Word32 !Word32

Instances

Instances details

Show FreeRegs Source #
Instance details Defined in GHC.CmmToAsm.Reg.Linear.SPARC Methods showsPrec :: Int -> FreeRegs -> ShowS # show :: FreeRegs -> String # showList :: [FreeRegs] -> ShowS #
Outputable FreeRegs Source #
Instance details Defined in GHC.CmmToAsm.Reg.Linear.SPARC Methods ppr :: FreeRegs -> SDoc # pprPrec :: Rational -> FreeRegs -> SDoc #
FR FreeRegs Source #
Instance details Defined in GHC.CmmToAsm.Reg.Linear.FreeRegs Methods frAllocateReg :: Platform -> RealReg -> FreeRegs -> FreeRegs Source # frGetFreeRegs :: Platform -> RegClass -> FreeRegs -> [RealReg] Source # frInitFreeRegs :: Platform -> FreeRegs Source # frReleaseReg :: Platform -> RealReg -> FreeRegs -> FreeRegs Source #

noFreeRegs :: FreeRegs Source #

A reg map where no regs are free to be allocated.

initFreeRegs :: Platform -> FreeRegs Source #

The initial set of free regs.

getFreeRegs :: RegClass -> FreeRegs -> [RealReg] Source #

Get all the free registers of this class.

allocateReg :: Platform -> RealReg -> FreeRegs -> FreeRegs Source #

Grab a register.

releaseReg :: Platform -> RealReg -> FreeRegs -> FreeRegs Source #

Release a register from allocation. The register liveness information says that most regs die after a C call, but we still don't want to allocate to some of them.

bitMask :: Int -> Word32 Source #

showFreeRegs :: FreeRegs -> String Source #