ghc-9.13: The GHC API
Safe HaskellNone
LanguageGHC2021

GHC.CmmToAsm.Reg.Linear.LA64

Synopsis

Documentation

data FreeRegs Source #

Constructors

FreeRegs !Word32 !Word32 

Instances

Instances details
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 #

Outputable FreeRegs Source # 
Instance details

Defined in GHC.CmmToAsm.Reg.Linear.LA64

Methods

ppr :: FreeRegs -> SDoc Source #

Show FreeRegs Source # 
Instance details

Defined in GHC.CmmToAsm.Reg.Linear.LA64

Methods

showsPrec :: Int -> FreeRegs -> ShowS #

show :: FreeRegs -> String #

showList :: [FreeRegs] -> ShowS #

noFreeRegs :: FreeRegs Source #

showBits :: Word32 -> String Source #

Show bits as a String of 1s and 0s

initFreeRegs :: Platform -> FreeRegs Source #

Set bits of all allocatable registers to 1

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

Get all free RealRegs (i.e. those where the corresponding bit is 1)

allocateReg :: HasCallStack => RealReg -> FreeRegs -> FreeRegs Source #

Set corresponding register bit to 0

releaseReg :: HasCallStack => RealReg -> FreeRegs -> FreeRegs Source #

Set corresponding register bit to 1