StgSyn

Documentation

data StgArg

Constructors

StgVarArg Id

StgLitArg Literal

Instances

Outputable StgArg

Defined in StgSyn

Methods

ppr :: StgArg -> SDoc

pprPrec :: Rational -> StgArg -> SDoc

data GenStgTopBinding pass

A top-level binding.

Constructors

StgTopLifted (GenStgBinding pass)

StgTopStringLit Id ByteString

Instances

OutputablePass pass => Outputable (GenStgTopBinding pass)

Defined in StgSyn

Methods

ppr :: GenStgTopBinding pass -> SDoc

pprPrec :: Rational -> GenStgTopBinding pass -> SDoc

data GenStgBinding pass

Constructors

StgNonRec (BinderP pass) (GenStgRhs pass)

StgRec [(BinderP pass, GenStgRhs pass)]

Instances

OutputablePass pass => Outputable (GenStgBinding pass)

Defined in StgSyn

Methods

ppr :: GenStgBinding pass -> SDoc

pprPrec :: Rational -> GenStgBinding pass -> SDoc

data GenStgExpr pass

Constructors

StgApp Id [StgArg]

StgLit Literal

StgConApp DataCon [StgArg] [Type]

StgOpApp StgOp [StgArg] Type

StgLam (NonEmpty (BinderP pass)) StgExpr

StgCase (GenStgExpr pass) (BinderP pass) AltType [GenStgAlt pass]

StgLet (XLet pass) (GenStgBinding pass) (GenStgExpr pass)

StgLetNoEscape (XLetNoEscape pass) (GenStgBinding pass) (GenStgExpr pass)

StgTick (Tickish Id) (GenStgExpr pass)

Instances

OutputablePass pass => Outputable (GenStgExpr pass)

Defined in StgSyn

Methods

ppr :: GenStgExpr pass -> SDoc

pprPrec :: Rational -> GenStgExpr pass -> SDoc

data GenStgRhs pass

Constructors

StgRhsClosure

Fields

• (XRhsClosure pass)

  Extension point for non-global free var list just before CodeGen.

• CostCentreStack

  CCS to be attached (default is CurrentCCS)

• !UpdateFlag

  ReEntrant | Updatable | SingleEntry

• [BinderP pass]

  arguments; if empty, then not a function; as above, order is important.

• (GenStgExpr pass)

  body

StgRhsCon CostCentreStack DataCon [StgArg]

Instances

OutputablePass pass => Outputable (GenStgRhs pass)

Defined in StgSyn

Methods

ppr :: GenStgRhs pass -> SDoc

pprPrec :: Rational -> GenStgRhs pass -> SDoc

type GenStgAlt pass = (AltCon, [BinderP pass], GenStgExpr pass)

data AltType

Constructors

PolyAlt

MultiValAlt Int

AlgAlt TyCon

PrimAlt PrimRep

Instances

Outputable AltType

Defined in StgSyn

Methods

ppr :: AltType -> SDoc

pprPrec :: Rational -> AltType -> SDoc

data StgPass

Used as a data type index for the stgSyn AST

Constructors

Vanilla

LiftLams

CodeGen

type family BinderP (pass :: StgPass)

Instances

type BinderP Vanilla

Defined in StgSyn

type BinderP Vanilla = Id

type BinderP LiftLams

Defined in StgLiftLams.Analysis

type BinderP LiftLams = BinderInfo

type BinderP CodeGen

Defined in StgSyn

type BinderP CodeGen = Id

type family XRhsClosure (pass :: StgPass)

Instances

type XRhsClosure Vanilla

Defined in StgSyn

type XRhsClosure Vanilla = NoExtSilent

type XRhsClosure LiftLams

Defined in StgLiftLams.Analysis

type XRhsClosure LiftLams = DIdSet

type XRhsClosure CodeGen

Code gen needs to track non-global free vars

Defined in StgSyn

type XRhsClosure CodeGen = DIdSet

type family XLet (pass :: StgPass)

Instances

type XLet Vanilla

Defined in StgSyn

type XLet Vanilla = NoExtSilent

type XLet LiftLams

Defined in StgLiftLams.Analysis

type XLet LiftLams = Skeleton

type XLet CodeGen

Defined in StgSyn

type XLet CodeGen = NoExtSilent

type family XLetNoEscape (pass :: StgPass)

Instances

type XLetNoEscape Vanilla

Defined in StgSyn

type XLetNoEscape Vanilla = NoExtSilent

type XLetNoEscape LiftLams

Defined in StgLiftLams.Analysis

type XLetNoEscape LiftLams = Skeleton

type XLetNoEscape CodeGen

Defined in StgSyn

type XLetNoEscape CodeGen = NoExtSilent

data NoExtSilent

Like NoExt, but with an Outputable instance that returns empty.

Instances

Eq NoExtSilent

Defined in StgSyn

Methods

(==) :: NoExtSilent -> NoExtSilent -> Bool

(/=) :: NoExtSilent -> NoExtSilent -> Bool

Data NoExtSilent

Defined in StgSyn

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> NoExtSilent -> c NoExtSilent

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c NoExtSilent

toConstr :: NoExtSilent -> Constr

dataTypeOf :: NoExtSilent -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c NoExtSilent)

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c NoExtSilent)

gmapT :: (forall b. Data b => b -> b) -> NoExtSilent -> NoExtSilent

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> NoExtSilent -> r

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> NoExtSilent -> r

gmapQ :: (forall d. Data d => d -> u) -> NoExtSilent -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> NoExtSilent -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> NoExtSilent -> m NoExtSilent

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> NoExtSilent -> m NoExtSilent

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> NoExtSilent -> m NoExtSilent

Ord NoExtSilent

Defined in StgSyn

Methods

compare :: NoExtSilent -> NoExtSilent -> Ordering

(<) :: NoExtSilent -> NoExtSilent -> Bool

(<=) :: NoExtSilent -> NoExtSilent -> Bool

(>) :: NoExtSilent -> NoExtSilent -> Bool

(>=) :: NoExtSilent -> NoExtSilent -> Bool

max :: NoExtSilent -> NoExtSilent -> NoExtSilent

min :: NoExtSilent -> NoExtSilent -> NoExtSilent

Outputable NoExtSilent

Defined in StgSyn

Methods

ppr :: NoExtSilent -> SDoc

pprPrec :: Rational -> NoExtSilent -> SDoc

noExtSilent :: NoExtSilent

Used when constructing a term with an unused extension point that should not appear in pretty-printed output at all.

type OutputablePass pass = (Outputable (XLet pass), Outputable (XLetNoEscape pass), Outputable (XRhsClosure pass), OutputableBndr (BinderP pass))

data UpdateFlag

Constructors

ReEntrant

Updatable

SingleEntry

Instances

Outputable UpdateFlag

Defined in StgSyn

Methods

ppr :: UpdateFlag -> SDoc

pprPrec :: Rational -> UpdateFlag -> SDoc

isUpdatable :: UpdateFlag -> Bool

type StgTopBinding = GenStgTopBinding Vanilla

type StgBinding = GenStgBinding Vanilla

type StgExpr = GenStgExpr Vanilla

type StgRhs = GenStgRhs Vanilla

type StgAlt = GenStgAlt Vanilla

type CgStgTopBinding = GenStgTopBinding CodeGen

type CgStgBinding = GenStgBinding CodeGen

type CgStgExpr = GenStgExpr CodeGen

type CgStgRhs = GenStgRhs CodeGen

type CgStgAlt = GenStgAlt CodeGen

type LlStgTopBinding = GenStgTopBinding LiftLams

type LlStgBinding = GenStgBinding LiftLams

type LlStgExpr = GenStgExpr LiftLams

type LlStgRhs = GenStgRhs LiftLams

type LlStgAlt = GenStgAlt LiftLams

type InStgArg = StgArg

type InStgTopBinding = StgTopBinding

type InStgBinding = StgBinding

type InStgExpr = StgExpr

type InStgRhs = StgRhs

type InStgAlt = StgAlt

type OutStgArg = StgArg

type OutStgTopBinding = StgTopBinding

type OutStgBinding = StgBinding

type OutStgExpr = StgExpr

type OutStgRhs = StgRhs

type OutStgAlt = StgAlt

data StgOp

Constructors

StgPrimOp PrimOp

StgPrimCallOp PrimCall

StgFCallOp ForeignCall Unique

topStgBindHasCafRefs :: GenStgTopBinding pass -> Bool

stgArgHasCafRefs :: StgArg -> Bool

stgRhsArity :: StgRhs -> Int

isDllConApp :: DynFlags -> Module -> DataCon -> [StgArg] -> Bool

Does this constructor application refer to anything in a different *Windows* DLL? If so, we can't allocate it statically

stgArgType :: StgArg -> Type

Type of an StgArg

Very half baked because we have lost the type arguments.

stripStgTicksTop :: (Tickish Id -> Bool) -> GenStgExpr p -> ([Tickish Id], GenStgExpr p)

Strip ticks of a given type from an STG expression

stgCaseBndrInScope

Arguments

:: AltType

-> Bool

unarised?

-> Bool

Given an alt type and whether the program is unarised, return whether the case binder is in scope.

Case binders of unboxed tuple or unboxed sum type always dead after the unariser has run. See Note [Post-unarisation invariants].

pprStgBinding :: StgBinding -> SDoc

pprGenStgTopBindings :: OutputablePass pass => [GenStgTopBinding pass] -> SDoc

pprStgTopBindings :: [StgTopBinding] -> SDoc