Safe Haskell	Safe-Inferred
Language	Haskell2010

GHC.Core.Unfold

Synopsis

data Unfolding
data UnfoldingGuidance
data UnfoldingOpts = UnfoldingOpts {
- unfoldingCreationThreshold :: !Int
- unfoldingUseThreshold :: !Int
- unfoldingFunAppDiscount :: !Int
- unfoldingDictDiscount :: !Int
- unfoldingVeryAggressive :: !Bool
- unfoldingCaseThreshold :: !Int
- unfoldingCaseScaling :: !Int
}
defaultUnfoldingOpts :: UnfoldingOpts
updateCreationThreshold :: Int -> UnfoldingOpts -> UnfoldingOpts
updateUseThreshold :: Int -> UnfoldingOpts -> UnfoldingOpts
updateFunAppDiscount :: Int -> UnfoldingOpts -> UnfoldingOpts
updateDictDiscount :: Int -> UnfoldingOpts -> UnfoldingOpts
updateVeryAggressive :: Bool -> UnfoldingOpts -> UnfoldingOpts
updateCaseScaling :: Int -> UnfoldingOpts -> UnfoldingOpts
updateCaseThreshold :: Int -> UnfoldingOpts -> UnfoldingOpts
data ArgSummary
- = TrivArg
- | NonTrivArg
- | ValueArg
couldBeSmallEnoughToInline :: UnfoldingOpts -> Int -> CoreExpr -> Bool
inlineBoringOk :: CoreExpr -> Bool
certainlyWillInline :: UnfoldingOpts -> IdInfo -> Maybe Unfolding
smallEnoughToInline :: UnfoldingOpts -> Unfolding -> Bool
callSiteInline :: Logger -> DynFlags -> Int -> Id -> Bool -> Bool -> [ArgSummary] -> CallCtxt -> Maybe CoreExpr
data CallCtxt
- = BoringCtxt
- | RhsCtxt
- | DiscArgCtxt
- | RuleArgCtxt
- | ValAppCtxt
- | CaseCtxt
calcUnfoldingGuidance :: UnfoldingOpts -> Bool -> CoreExpr -> UnfoldingGuidance

Documentation

data Unfolding Source #

Records the unfolding of an identifier, which is approximately the form the identifier would have if we substituted its definition in for the identifier. This type should be treated as abstract everywhere except in GHC.Core.Unfold

Instances

Instances details

Outputable Unfolding #
Instance details Defined in GHC.Core.Ppr Methods ppr :: Unfolding -> SDoc Source #

data UnfoldingGuidance Source #

UnfoldingGuidance says when unfolding should take place

Instances

Instances details

Outputable UnfoldingGuidance #
Instance details Defined in GHC.Core.Ppr Methods ppr :: UnfoldingGuidance -> SDoc Source #
Eq UnfoldingGuidance #
Instance details Defined in GHC.Core Methods (==) :: UnfoldingGuidance -> UnfoldingGuidance -> Bool # (/=) :: UnfoldingGuidance -> UnfoldingGuidance -> Bool #

data UnfoldingOpts Source #

Unfolding options

Constructors

UnfoldingOpts

Fields

unfoldingCreationThreshold :: !Int
Threshold above which unfoldings are not *created*
unfoldingUseThreshold :: !Int
Threshold above which unfoldings are not *inlined*
unfoldingFunAppDiscount :: !Int
Discount for lambdas that are used (applied)
unfoldingDictDiscount :: !Int
Discount for dictionaries
unfoldingVeryAggressive :: !Bool
Force inlining in many more cases
unfoldingCaseThreshold :: !Int
unfoldingCaseScaling :: !Int

defaultUnfoldingOpts :: UnfoldingOpts Source #

updateCreationThreshold :: Int -> UnfoldingOpts -> UnfoldingOpts Source #

updateUseThreshold :: Int -> UnfoldingOpts -> UnfoldingOpts Source #

updateFunAppDiscount :: Int -> UnfoldingOpts -> UnfoldingOpts Source #

updateDictDiscount :: Int -> UnfoldingOpts -> UnfoldingOpts Source #

updateVeryAggressive :: Bool -> UnfoldingOpts -> UnfoldingOpts Source #

updateCaseScaling :: Int -> UnfoldingOpts -> UnfoldingOpts Source #

updateCaseThreshold :: Int -> UnfoldingOpts -> UnfoldingOpts Source #

data ArgSummary Source #

Constructors

TrivArg
NonTrivArg
ValueArg

Instances

Instances details

Outputable ArgSummary #
Instance details Defined in GHC.Core.Unfold Methods ppr :: ArgSummary -> SDoc Source #

couldBeSmallEnoughToInline :: UnfoldingOpts -> Int -> CoreExpr -> Bool Source #

inlineBoringOk :: CoreExpr -> Bool Source #

certainlyWillInline :: UnfoldingOpts -> IdInfo -> Maybe Unfolding Source #

Sees if the unfolding is pretty certain to inline. If so, return a *stable* unfolding for it, that will always inline.

smallEnoughToInline :: UnfoldingOpts -> Unfolding -> Bool Source #

callSiteInline :: Logger -> DynFlags -> Int -> Id -> Bool -> Bool -> [ArgSummary] -> CallCtxt -> Maybe CoreExpr Source #

data CallCtxt Source #

Constructors

BoringCtxt
RhsCtxt
DiscArgCtxt
RuleArgCtxt
ValAppCtxt
CaseCtxt

Instances

Instances details

Outputable CallCtxt #
Instance details Defined in GHC.Core.Unfold Methods ppr :: CallCtxt -> SDoc Source #

calcUnfoldingGuidance :: UnfoldingOpts -> Bool -> CoreExpr -> UnfoldingGuidance Source #