Safe Haskell	None
Language	GHC2021

GHC.Cmm.Reg

Contents

Cmm Registers
Local registers
Global registers

Synopsis

data CmmReg
- = CmmLocal !LocalReg
- | CmmGlobal GlobalRegUse
cmmRegType :: CmmReg -> CmmType
cmmRegWidth :: CmmReg -> Width
data LocalReg = LocalReg !Unique !CmmType
localRegType :: LocalReg -> CmmType
data GlobalReg
- = VanillaReg !Int
- | FloatReg !Int
- | DoubleReg !Int
- | LongReg !Int
- | XmmReg !Int
- | YmmReg !Int
- | ZmmReg !Int
- | Sp
- | SpLim
- | Hp
- | HpLim
- | CCCS
- | CurrentTSO
- | CurrentNursery
- | HpAlloc
- | EagerBlackholeInfo
- | GCEnter1
- | GCFun
- | BaseReg
- | MachSp
- | UnwindReturnReg
- | PicBaseReg
isArgReg :: GlobalReg -> Bool
globalRegSpillType :: Platform -> GlobalReg -> CmmType
pprGlobalReg :: IsLine doc => GlobalReg -> doc
spReg :: Platform -> CmmReg
hpReg :: Platform -> CmmReg
spLimReg :: Platform -> CmmReg
hpLimReg :: Platform -> CmmReg
nodeReg :: Platform -> CmmReg
currentTSOReg :: Platform -> CmmReg
currentNurseryReg :: Platform -> CmmReg
hpAllocReg :: Platform -> CmmReg
cccsReg :: Platform -> CmmReg
node :: GlobalReg
baseReg :: Platform -> CmmReg
data GlobalRegUse = GlobalRegUse {
- globalRegUseGlobalReg :: !GlobalReg
- globalRegUseType :: !CmmType
}
pprGlobalRegUse :: IsLine doc => GlobalRegUse -> doc

Cmm Registers

data CmmReg Source #

Constructors

CmmLocal !LocalReg
CmmGlobal GlobalRegUse

Instances

Instances details

Outputable CmmReg Source #
Instance details Defined in GHC.Cmm.Reg Methods ppr :: CmmReg -> SDoc Source #
Show CmmReg Source #
Instance details Defined in GHC.Cmm.Reg Methods showsPrec :: Int -> CmmReg -> ShowS # show :: CmmReg -> String # showList :: [CmmReg] -> ShowS #
Eq CmmReg Source #
Instance details Defined in GHC.Cmm.Reg Methods (==) :: CmmReg -> CmmReg -> Bool # (/=) :: CmmReg -> CmmReg -> Bool #
Ord CmmReg Source #
Instance details Defined in GHC.Cmm.Reg Methods compare :: CmmReg -> CmmReg -> Ordering # (<) :: CmmReg -> CmmReg -> Bool # (<=) :: CmmReg -> CmmReg -> Bool # (>) :: CmmReg -> CmmReg -> Bool # (>=) :: CmmReg -> CmmReg -> Bool # max :: CmmReg -> CmmReg -> CmmReg # min :: CmmReg -> CmmReg -> CmmReg #
DefinerOfRegs GlobalReg CmmReg Source #
Instance details Defined in GHC.Cmm.Expr Methods foldRegsDefd :: Platform -> (b -> GlobalReg -> b) -> b -> CmmReg -> b Source #
DefinerOfRegs GlobalRegUse CmmReg Source #
Instance details Defined in GHC.Cmm.Expr Methods foldRegsDefd :: Platform -> (b -> GlobalRegUse -> b) -> b -> CmmReg -> b Source #
DefinerOfRegs LocalReg CmmReg Source #
Instance details Defined in GHC.Cmm.Expr Methods foldRegsDefd :: Platform -> (b -> LocalReg -> b) -> b -> CmmReg -> b Source #
UserOfRegs GlobalReg CmmReg Source #
Instance details Defined in GHC.Cmm.Expr Methods foldRegsUsed :: Platform -> (b -> GlobalReg -> b) -> b -> CmmReg -> b Source #
UserOfRegs GlobalRegUse CmmReg Source #
Instance details Defined in GHC.Cmm.Expr Methods foldRegsUsed :: Platform -> (b -> GlobalRegUse -> b) -> b -> CmmReg -> b Source #
UserOfRegs LocalReg CmmReg Source #
Instance details Defined in GHC.Cmm.Expr Methods foldRegsUsed :: Platform -> (b -> LocalReg -> b) -> b -> CmmReg -> b Source #

cmmRegType :: CmmReg -> CmmType Source #

cmmRegWidth :: CmmReg -> Width Source #

Local registers

data LocalReg Source #

Constructors

LocalReg !Unique !CmmType

Parameters: 1. Identifier 2. Type

Instances

Instances details

Uniquable LocalReg Source #
Instance details Defined in GHC.Cmm.Reg Methods getUnique :: LocalReg -> Unique Source #
Outputable LocalReg Source #
Instance details Defined in GHC.Cmm.Reg Methods ppr :: LocalReg -> SDoc Source #
Show LocalReg Source #
Instance details Defined in GHC.Cmm.Reg Methods showsPrec :: Int -> LocalReg -> ShowS # show :: LocalReg -> String # showList :: [LocalReg] -> ShowS #
Eq LocalReg Source #
Instance details Defined in GHC.Cmm.Reg Methods (==) :: LocalReg -> LocalReg -> Bool # (/=) :: LocalReg -> LocalReg -> Bool #
Ord LocalReg Source #
Instance details Defined in GHC.Cmm.Reg Methods compare :: LocalReg -> LocalReg -> Ordering # (<) :: LocalReg -> LocalReg -> Bool # (<=) :: LocalReg -> LocalReg -> Bool # (>) :: LocalReg -> LocalReg -> Bool # (>=) :: LocalReg -> LocalReg -> Bool # max :: LocalReg -> LocalReg -> LocalReg # min :: LocalReg -> LocalReg -> LocalReg #
DefinerOfRegs LocalReg CmmReg Source #
Instance details Defined in GHC.Cmm.Expr Methods foldRegsDefd :: Platform -> (b -> LocalReg -> b) -> b -> CmmReg -> b Source #
UserOfRegs LocalReg CmmReg Source #
Instance details Defined in GHC.Cmm.Expr Methods foldRegsUsed :: Platform -> (b -> LocalReg -> b) -> b -> CmmReg -> b Source #
DefinerOfRegs LocalReg (CmmNode e x) Source #
Instance details Defined in GHC.Cmm.Node Methods foldRegsDefd :: Platform -> (b -> LocalReg -> b) -> b -> CmmNode e x -> b Source #
UserOfRegs LocalReg (CmmNode e x) Source #
Instance details Defined in GHC.Cmm.Node Methods foldRegsUsed :: Platform -> (b -> LocalReg -> b) -> b -> CmmNode e x -> b Source #

localRegType :: LocalReg -> CmmType Source #

Global registers

data GlobalReg Source #

An abstract global register for the STG machine.

See also GlobalRegUse, which denotes a usage of a register at a particular type (e.g. using a 32-bit wide register to store an 8-bit wide value), as per Note [GlobalReg vs GlobalRegUse].

Constructors

VanillaReg !Int
FloatReg !Int
DoubleReg !Int
LongReg !Int
XmmReg !Int
YmmReg !Int
ZmmReg !Int
Sp
SpLim
Hp
HpLim
CCCS
CurrentTSO
CurrentNursery
HpAlloc
EagerBlackholeInfo
GCEnter1
GCFun
BaseReg
MachSp
UnwindReturnReg
PicBaseReg

Instances

Instances details

Outputable GlobalReg Source #
Instance details Defined in GHC.Cmm.Reg Methods ppr :: GlobalReg -> SDoc Source #
Show GlobalReg Source #
Instance details Defined in GHC.Cmm.Reg Methods showsPrec :: Int -> GlobalReg -> ShowS # show :: GlobalReg -> String # showList :: [GlobalReg] -> ShowS #
Eq GlobalReg Source #
Instance details Defined in GHC.Cmm.Reg Methods (==) :: GlobalReg -> GlobalReg -> Bool # (/=) :: GlobalReg -> GlobalReg -> Bool #
Ord GlobalReg Source #
Instance details Defined in GHC.Cmm.Reg Methods compare :: GlobalReg -> GlobalReg -> Ordering # (<) :: GlobalReg -> GlobalReg -> Bool # (<=) :: GlobalReg -> GlobalReg -> Bool # (>) :: GlobalReg -> GlobalReg -> Bool # (>=) :: GlobalReg -> GlobalReg -> Bool # max :: GlobalReg -> GlobalReg -> GlobalReg # min :: GlobalReg -> GlobalReg -> GlobalReg #
DefinerOfRegs GlobalReg CmmReg Source #
Instance details Defined in GHC.Cmm.Expr Methods foldRegsDefd :: Platform -> (b -> GlobalReg -> b) -> b -> CmmReg -> b Source #
UserOfRegs GlobalReg CmmReg Source #
Instance details Defined in GHC.Cmm.Expr Methods foldRegsUsed :: Platform -> (b -> GlobalReg -> b) -> b -> CmmReg -> b Source #
OutputableP env GlobalReg Source #
Instance details Defined in GHC.Cmm.Reg Methods pdoc :: env -> GlobalReg -> SDoc Source #
DefinerOfRegs GlobalReg (CmmNode e x) Source #
Instance details Defined in GHC.Cmm.Node Methods foldRegsDefd :: Platform -> (b -> GlobalReg -> b) -> b -> CmmNode e x -> b Source #
UserOfRegs GlobalReg (CmmNode e x) Source #
Instance details Defined in GHC.Cmm.Node Methods foldRegsUsed :: Platform -> (b -> GlobalReg -> b) -> b -> CmmNode e x -> b Source #

isArgReg :: GlobalReg -> Bool Source #

globalRegSpillType :: Platform -> GlobalReg -> CmmType Source #

pprGlobalReg :: IsLine doc => GlobalReg -> doc Source #

spReg :: Platform -> CmmReg Source #

hpReg :: Platform -> CmmReg Source #

spLimReg :: Platform -> CmmReg Source #

hpLimReg :: Platform -> CmmReg Source #

nodeReg :: Platform -> CmmReg Source #

currentTSOReg :: Platform -> CmmReg Source #

currentNurseryReg :: Platform -> CmmReg Source #

hpAllocReg :: Platform -> CmmReg Source #

cccsReg :: Platform -> CmmReg Source #

node :: GlobalReg Source #

baseReg :: Platform -> CmmReg Source #

data GlobalRegUse Source #

A use of a global register at a particular type.

While a GlobalReg identifies a global register in the STG machine, a GlobalRegUse also contains information about the type we are storing in the register.

See Note [GlobalReg vs GlobalRegUse] for more information.

Constructors

GlobalRegUse
Fields globalRegUseGlobalReg :: !GlobalReg The underlying `GlobalReg` globalRegUseType :: !CmmType The `CmmType` at which we are using the `GlobalReg`. Its width must be less than the width of the `GlobalReg`: typeWidth ty <= typeWidth (globalRegSpillType reg)

Instances

Instances details

Outputable GlobalRegUse Source #
Instance details Defined in GHC.Cmm.Reg Methods ppr :: GlobalRegUse -> SDoc Source #
Show GlobalRegUse Source #
Instance details Defined in GHC.Cmm.Reg Methods showsPrec :: Int -> GlobalRegUse -> ShowS # show :: GlobalRegUse -> String # showList :: [GlobalRegUse] -> ShowS #
Eq GlobalRegUse Source #
Instance details Defined in GHC.Cmm.Reg Methods (==) :: GlobalRegUse -> GlobalRegUse -> Bool # (/=) :: GlobalRegUse -> GlobalRegUse -> Bool #
Ord GlobalRegUse Source #
Instance details Defined in GHC.Cmm.Reg Methods compare :: GlobalRegUse -> GlobalRegUse -> Ordering # (<) :: GlobalRegUse -> GlobalRegUse -> Bool # (<=) :: GlobalRegUse -> GlobalRegUse -> Bool # (>) :: GlobalRegUse -> GlobalRegUse -> Bool # (>=) :: GlobalRegUse -> GlobalRegUse -> Bool # max :: GlobalRegUse -> GlobalRegUse -> GlobalRegUse # min :: GlobalRegUse -> GlobalRegUse -> GlobalRegUse #
DefinerOfRegs GlobalRegUse CmmReg Source #
Instance details Defined in GHC.Cmm.Expr Methods foldRegsDefd :: Platform -> (b -> GlobalRegUse -> b) -> b -> CmmReg -> b Source #
UserOfRegs GlobalRegUse CmmReg Source #
Instance details Defined in GHC.Cmm.Expr Methods foldRegsUsed :: Platform -> (b -> GlobalRegUse -> b) -> b -> CmmReg -> b Source #

pprGlobalRegUse :: IsLine doc => GlobalRegUse -> doc Source #