GHC.StgToCmm.Closure

Documentation

type DynTag = Int

tagForCon :: Platform -> DataCon -> DynTag

isSmallFamily :: Platform -> Int -> Bool

idPrimRep :: Id -> PrimRep

Assumes that there is precisely one PrimRep of the type. This assumption holds after unarise. See Note [Post-unarisation invariants]

isVoidRep :: PrimRep -> Bool

isGcPtrRep :: PrimRep -> Bool

addIdReps :: [NonVoid Id] -> [NonVoid (PrimRep, Id)]

Assumes that Ids have one PrimRep, which holds after unarisation. See Note [Post-unarisation invariants]

addArgReps :: [NonVoid StgArg] -> [NonVoid (PrimRep, StgArg)]

Assumes that arguments have one PrimRep, which holds after unarisation. See Note [Post-unarisation invariants]

argPrimRep :: StgArg -> PrimRep

Assumes that the argument has one PrimRep, which holds after unarisation. See Note [Post-unarisation invariants]

newtype NonVoid a

Constructors

NonVoid a

Instances

Show a => Show (NonVoid a)

Defined in GHC.StgToCmm.Closure

Methods

showsPrec :: Int -> NonVoid a -> ShowS

show :: NonVoid a -> String

showList :: [NonVoid a] -> ShowS

Outputable a => Outputable (NonVoid a)

Defined in GHC.StgToCmm.Closure

Methods

ppr :: NonVoid a -> SDoc

Eq a => Eq (NonVoid a)

Defined in GHC.StgToCmm.Closure

Methods

(==) :: NonVoid a -> NonVoid a -> Bool

(/=) :: NonVoid a -> NonVoid a -> Bool

fromNonVoid :: NonVoid a -> a

nonVoidIds :: [Id] -> [NonVoid Id]

nonVoidStgArgs :: [StgArg] -> [NonVoid StgArg]

assertNonVoidIds :: [Id] -> [NonVoid Id]

Used in places where some invariant ensures that all these Ids are non-void; e.g. constructor field binders in case expressions. See Note [Post-unarisation invariants] in GHC.Stg.Unarise.

assertNonVoidStgArgs :: [StgArg] -> [NonVoid StgArg]

Used in places where some invariant ensures that all these arguments are non-void; e.g. constructor arguments. See Note [Post-unarisation invariants] in GHC.Stg.Unarise.

LambdaFormInfo

data LambdaFormInfo

Information about an identifier, from the code generator's point of view. Every identifier is bound to a LambdaFormInfo in the environment, which gives the code generator enough info to be able to tail call or return that identifier.

Instances

Outputable LambdaFormInfo

Defined in GHC.StgToCmm.Types

Methods

ppr :: LambdaFormInfo -> SDoc

data StandardFormInfo

StandardFormInfo tells whether this thunk has one of a small number of standard forms

Instances

Outputable StandardFormInfo

Defined in GHC.StgToCmm.Types

Methods

ppr :: StandardFormInfo -> SDoc

Eq StandardFormInfo

Defined in GHC.StgToCmm.Types

Methods

(==) :: StandardFormInfo -> StandardFormInfo -> Bool

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

mkLFThunk :: Type -> TopLevelFlag -> [Id] -> UpdateFlag -> LambdaFormInfo

mkLFReEntrant :: TopLevelFlag -> [Id] -> [Id] -> ArgDescr -> LambdaFormInfo

mkConLFInfo :: DataCon -> LambdaFormInfo

mkSelectorLFInfo :: Id -> Int -> Bool -> LambdaFormInfo

mkApLFInfo :: Id -> UpdateFlag -> Arity -> LambdaFormInfo

mkLFImported :: Id -> LambdaFormInfo

mkLFArgument :: Id -> LambdaFormInfo

mkLFLetNoEscape :: LambdaFormInfo

mkLFStringLit :: LambdaFormInfo

lfDynTag :: Platform -> LambdaFormInfo -> DynTag

Return the tag in the low order bits of a variable bound to this LambdaForm

isLFThunk :: LambdaFormInfo -> Bool

isLFReEntrant :: LambdaFormInfo -> Bool

lfUpdatable :: LambdaFormInfo -> Bool

Used by other modules

data CgLoc

Constructors

CmmLoc CmmExpr

LneLoc BlockId [LocalReg]

Instances

OutputableP Platform CgLoc

Defined in GHC.StgToCmm.Closure

Methods

pdoc :: Platform -> CgLoc -> SDoc

data CallMethod

Constructors

EnterIt

No args, not a function

JumpToIt BlockId [LocalReg]

ReturnIt

InferedReturnIt

SlowCall

DirectEntry CLabel RepArity

Instances

Outputable CallMethod

Defined in GHC.StgToCmm.Closure

Methods

ppr :: CallMethod -> SDoc

nodeMustPointToIt :: Profile -> LambdaFormInfo -> Bool

isKnownFun :: LambdaFormInfo -> Bool

funTag :: Platform -> ClosureInfo -> DynTag

tagForArity :: Platform -> RepArity -> DynTag

getCallMethod :: StgToCmmConfig -> Name -> Id -> LambdaFormInfo -> RepArity -> RepArity -> CgLoc -> Maybe SelfLoopInfo -> CallMethod

ClosureInfo

data ClosureInfo

mkClosureInfo :: Profile -> Bool -> Id -> LambdaFormInfo -> Int -> Int -> String -> ClosureInfo

mkCmmInfo :: ClosureInfo -> Id -> CostCentreStack -> CmmInfoTable

Convert from ClosureInfo to CmmInfoTable.

Inspection

closureLFInfo :: ClosureInfo -> LambdaFormInfo

closureName :: ClosureInfo -> Id

Labels

closureInfoLabel :: ClosureInfo -> CLabel

staticClosureLabel :: Platform -> ClosureInfo -> CLabel

closureSlowEntryLabel :: Platform -> ClosureInfo -> CLabel

closureLocalEntryLabel :: Platform -> ClosureInfo -> CLabel

Predicates

closureUpdReqd :: ClosureInfo -> Bool

closureReEntrant :: ClosureInfo -> Bool

closureFunInfo :: ClosureInfo -> Maybe (RepArity, ArgDescr)

isToplevClosure :: ClosureInfo -> Bool

blackHoleOnEntry :: ClosureInfo -> Bool

isStaticClosure :: ClosureInfo -> Bool

InfoTables

mkDataConInfoTable :: Profile -> DataCon -> ConInfoTableLocation -> Bool -> Int -> Int -> CmmInfoTable

cafBlackHoleInfoTable :: CmmInfoTable

indStaticInfoTable :: CmmInfoTable

staticClosureNeedsLink :: Bool -> CmmInfoTable -> Bool

mkClosureInfoTableLabel :: Platform -> Id -> LambdaFormInfo -> CLabel

Get the info table label for a *thunk*.