Safe Haskell	Ignore
Language	Haskell2010

GHC.Core.Unfold

Synopsis

data Unfolding
data UnfoldingGuidance
data ExprSize
- = TooBig
- | SizeIs {
  - _es_size_is :: !Int
  - _es_args :: !(Bag (Id, Int))
  - _es_discount :: !Int
  }
sizeExpr :: UnfoldingOpts -> Int -> [Id] -> CoreExpr -> ExprSize
data ArgSummary
- = TrivArg
- | NonTrivArg
- | ValueArg
nonTriv :: ArgSummary -> Bool
data CallCtxt
- = BoringCtxt
- | RhsCtxt RecFlag
- | DiscArgCtxt
- | RuleArgCtxt
- | ValAppCtxt
- | CaseCtxt
data UnfoldingOpts = UnfoldingOpts {
- unfoldingCreationThreshold :: !Int
- unfoldingUseThreshold :: !Int
- unfoldingFunAppDiscount :: !Int
- unfoldingDictDiscount :: !Int
- unfoldingVeryAggressive :: !Bool
- unfoldingCaseThreshold :: !Int
- unfoldingCaseScaling :: !Int
- unfoldingReportPrefix :: !(Maybe String)
}
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
updateReportPrefix :: Maybe String -> UnfoldingOpts -> UnfoldingOpts
inlineBoringOk :: CoreExpr -> Bool
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 Source #
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 Source #
Instance details Defined in GHC.Core.Ppr Methods ppr :: UnfoldingGuidance -> SDoc Source #
Eq UnfoldingGuidance Source #
Instance details Defined in GHC.Core Methods (==) :: UnfoldingGuidance -> UnfoldingGuidance -> Bool # (/=) :: UnfoldingGuidance -> UnfoldingGuidance -> Bool #

data ExprSize Source #

The size of a candidate expression for unfolding

Constructors

TooBig
SizeIs
Fields _es_size_is :: !Int Size found _es_args :: !(Bag (Id, Int)) Arguments cased herein, and discount for each such _es_discount :: !Int Size to subtract if result is scrutinised by a case expression

Instances

Instances details

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

sizeExpr :: UnfoldingOpts -> Int -> [Id] -> CoreExpr -> ExprSize Source #

data ArgSummary Source #

Constructors

TrivArg
NonTrivArg
ValueArg

Instances

Instances details

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

nonTriv :: ArgSummary -> Bool Source #

data CallCtxt Source #

Constructors

BoringCtxt
RhsCtxt RecFlag
DiscArgCtxt
RuleArgCtxt
ValAppCtxt
CaseCtxt

Instances

Instances details

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

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
Don't consider depth up to x
unfoldingCaseScaling :: !Int
Penalize depth with 1/x
unfoldingReportPrefix :: !(Maybe String)
Only report inlining decisions for names with this prefix

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 #

updateReportPrefix :: Maybe String -> UnfoldingOpts -> UnfoldingOpts Source #

inlineBoringOk :: CoreExpr -> Bool Source #

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