DynFlag(..),
ExtensionFlag(..),
glasgowExtsFlags,
- flattenExtensionFlags,
- ensureFlattenedExtensionFlags,
dopt,
dopt_set,
dopt_unset,
xopt,
xopt_set,
xopt_unset,
- xopt_set_flattened,
- xopt_unset_flattened,
DynFlags(..),
RtsOptsEnabled(..),
HscTarget(..), isObjectTarget, defaultObjectTarget,
Option(..), showOpt,
DynLibLoader(..),
fFlags, fLangFlags, xFlags,
- dphPackage,
+ DPHBackend(..), dphPackage,
wayNames,
-- ** Manipulating DynFlags
| Opt_D_dump_foreign
| Opt_D_dump_inlinings
| Opt_D_dump_rule_firings
+ | Opt_D_dump_rule_rewrites
| Opt_D_dump_occur_anal
| Opt_D_dump_parsed
| Opt_D_dump_rn
| Opt_WarnHiShadows
| Opt_WarnImplicitPrelude
| Opt_WarnIncompletePatterns
+ | Opt_WarnIncompleteUniPatterns
| Opt_WarnIncompletePatternsRecUpd
| Opt_WarnMissingFields
| Opt_WarnMissingImportList
| Opt_WarnDodgyImports
| Opt_WarnOrphans
| Opt_WarnAutoOrphans
+ | Opt_WarnIdentities
| Opt_WarnTabs
| Opt_WarnUnrecognisedPragmas
| Opt_WarnDodgyForeignImports
| Opt_DoEtaReduction
| Opt_CaseMerge
| Opt_UnboxStrictFields
- | Opt_MethodSharing
+ | Opt_MethodSharing -- Now a no-op; remove in GHC 7.2
| Opt_DictsCheap
| Opt_EnableRewriteRules -- Apply rewrite rules during simplification
| Opt_Vectorise
| Opt_SharedImplib
| Opt_BuildingCabalPackage
| Opt_SSE2
+ | Opt_GhciSandbox
+ | Opt_HelpfulErrors
-- temporary flags
| Opt_RunCPS
| Opt_ForeignFunctionInterface
| Opt_UnliftedFFITypes
| Opt_GHCForeignImportPrim
- | Opt_PArr -- Syntactic support for parallel arrays
+ | Opt_ParallelArrays -- Syntactic support for parallel arrays
| Opt_Arrows -- Arrow-notation syntax
+ | Opt_ModalTypes -- Heterogeneous Metaprogramming (modal types, brackets, escape, CSP)
| Opt_TemplateHaskell
| Opt_QuasiQuotes
| Opt_ImplicitParams
| Opt_RecordPuns
| Opt_ViewPatterns
| Opt_GADTs
+ | Opt_GADTSyntax
| Opt_NPlusKPatterns
| Opt_DoAndIfThenElse
+ | Opt_RebindableSyntax
| Opt_StandaloneDeriving
| Opt_DeriveDataTypeable
| Opt_ImpredicativeTypes
| Opt_TypeOperators
| Opt_PackageImports
- | Opt_NewQualifiedOperators
| Opt_ExplicitForAll
| Opt_AlternativeLayoutRule
| Opt_AlternativeLayoutRuleTransitional
| Opt_DatatypeContexts
+ | Opt_NondecreasingIndentation
+ | Opt_RelaxedLayout
deriving (Eq, Show)
-- | Contains not only a collection of 'DynFlag's but also a plethora of
specConstrThreshold :: Maybe Int, -- ^ Threshold for SpecConstr
specConstrCount :: Maybe Int, -- ^ Max number of specialisations for any one function
liberateCaseThreshold :: Maybe Int, -- ^ Threshold for LiberateCase
+ floatLamArgs :: Maybe Int, -- ^ Arg count for lambda floating
+ -- See CoreMonad.FloatOutSwitches
#ifndef OMIT_NATIVE_CODEGEN
targetPlatform :: Platform, -- ^ The platform we're compiling for. Used by the NCG.
-- hsc dynamic flags
flags :: [DynFlag],
+ -- Don't change this without updating extensionFlags:
language :: Maybe Language,
- extensionFlags :: Either [OnOff ExtensionFlag]
- [ExtensionFlag],
+ -- Don't change this without updating extensionFlags:
+ extensions :: [OnOff ExtensionFlag],
+ -- extensionFlags should always be equal to
+ -- flattenExtensionFlags language extensions
+ extensionFlags :: [ExtensionFlag],
-- | Message output action: use "ErrUtils" instead of this if you can
log_action :: Severity -> SrcSpan -> PprStyle -> Message -> IO (),
specConstrThreshold = Just 200,
specConstrCount = Just 3,
liberateCaseThreshold = Just 200,
+ floatLamArgs = Just 0, -- Default: float only if no fvs
strictnessBefore = [],
#ifndef OMIT_NATIVE_CODEGEN
mainFunIs = Nothing,
ctxtStkDepth = mAX_CONTEXT_REDUCTION_DEPTH,
- dphBackend = DPHPar,
+ dphBackend = DPHNone,
thisPackage = mainPackageId,
haddockOptions = Nothing,
flags = defaultFlags,
language = Nothing,
- extensionFlags = Left [],
+ extensions = [],
+ extensionFlags = flattenExtensionFlags Nothing [],
log_action = \severity srcSpan style msg ->
case severity of
data OnOff a = On a
| Off a
-flattenExtensionFlags :: DynFlags -> DynFlags
-flattenExtensionFlags dflags
- = case extensionFlags dflags of
- Left onoffs ->
- dflags {
- extensionFlags = Right $ flattenExtensionFlags' (language dflags) onoffs
- }
- Right _ ->
- panic "Flattening already-flattened extension flags"
-
-ensureFlattenedExtensionFlags :: DynFlags -> DynFlags
-ensureFlattenedExtensionFlags dflags
- = case extensionFlags dflags of
- Left onoffs ->
- dflags {
- extensionFlags = Right $ flattenExtensionFlags' (language dflags) onoffs
- }
- Right _ ->
- dflags
-
-- OnOffs accumulate in reverse order, so we use foldr in order to
-- process them in the right order
-flattenExtensionFlags' :: Maybe Language -> [OnOff ExtensionFlag]
- -> [ExtensionFlag]
-flattenExtensionFlags' ml = foldr f defaultExtensionFlags
+flattenExtensionFlags :: Maybe Language -> [OnOff ExtensionFlag]
+ -> [ExtensionFlag]
+flattenExtensionFlags ml = foldr f defaultExtensionFlags
where f (On f) flags = f : delete f flags
f (Off f) flags = delete f flags
defaultExtensionFlags = languageExtensions ml
languageExtensions :: Maybe Language -> [ExtensionFlag]
+
languageExtensions Nothing
+ -- Nothing => the default case
= Opt_MonoPatBinds -- Experimentally, I'm making this non-standard
-- behaviour the default, to see if anyone notices
-- SLPJ July 06
-- In due course I'd like Opt_MonoLocalBinds to be on by default
-- But NB it's implied by GADTs etc
-- SLPJ September 2010
+ : Opt_NondecreasingIndentation -- This has been on by default for some time
: languageExtensions (Just Haskell2010)
+
languageExtensions (Just Haskell98)
= [Opt_ImplicitPrelude,
Opt_MonomorphismRestriction,
Opt_NPlusKPatterns,
- Opt_DatatypeContexts]
+ Opt_DatatypeContexts,
+ Opt_NondecreasingIndentation
+ -- strictly speaking non-standard, but we always had this
+ -- on implicitly before the option was added in 7.1, and
+ -- turning it off breaks code, so we're keeping it on for
+ -- backwards compatibility. Cabal uses -XHaskell98 by
+ -- default unless you specify another language.
+ ]
+
languageExtensions (Just Haskell2010)
= [Opt_ImplicitPrelude,
Opt_MonomorphismRestriction,
-- | Test whether a 'ExtensionFlag' is set
xopt :: ExtensionFlag -> DynFlags -> Bool
-xopt f dflags = case extensionFlags dflags of
- Left _ -> panic ("Testing for extension flag " ++ show f ++ " before flattening")
- Right flags -> f `elem` flags
+xopt f dflags = f `elem` extensionFlags dflags
-- | Set a 'ExtensionFlag'
xopt_set :: DynFlags -> ExtensionFlag -> DynFlags
-xopt_set dfs f = case extensionFlags dfs of
- Left onoffs -> dfs { extensionFlags = Left (On f : onoffs) }
- Right _ -> panic ("Setting extension flag " ++ show f ++ " after flattening")
-
--- | Set a 'ExtensionFlag'
-xopt_set_flattened :: DynFlags -> ExtensionFlag -> DynFlags
-xopt_set_flattened dfs f = case extensionFlags dfs of
- Left _ ->
- panic ("Setting extension flag " ++ show f ++ " before flattening, but expected flattened")
- Right flags ->
- dfs { extensionFlags = Right (f : delete f flags) }
+xopt_set dfs f
+ = let onoffs = On f : extensions dfs
+ in dfs { extensions = onoffs,
+ extensionFlags = flattenExtensionFlags (language dfs) onoffs }
-- | Unset a 'ExtensionFlag'
xopt_unset :: DynFlags -> ExtensionFlag -> DynFlags
-xopt_unset dfs f = case extensionFlags dfs of
- Left onoffs -> dfs { extensionFlags = Left (Off f : onoffs) }
- Right _ -> panic ("Unsetting extension flag " ++ show f ++ " after flattening")
+xopt_unset dfs f
+ = let onoffs = Off f : extensions dfs
+ in dfs { extensions = onoffs,
+ extensionFlags = flattenExtensionFlags (language dfs) onoffs }
--- | Unset a 'ExtensionFlag'
-xopt_unset_flattened :: DynFlags -> ExtensionFlag -> DynFlags
-xopt_unset_flattened dfs f = case extensionFlags dfs of
- Left _ ->
- panic ("Unsetting extension flag " ++ show f ++ " before flattening, but expected flattened")
- Right flags ->
- dfs { extensionFlags = Right (delete f flags) }
+setLanguage :: Language -> DynP ()
+setLanguage l = upd f
+ where f dfs = let mLang = Just l
+ oneoffs = extensions dfs
+ in dfs {
+ language = mLang,
+ extensionFlags = flattenExtensionFlags mLang oneoffs
+ }
-- | Retrieve the options corresponding to a particular @opt_*@ field in the correct order
getOpts :: DynFlags -- ^ 'DynFlags' to retrieve the options from
, Flag "ddump-foreign" (setDumpFlag Opt_D_dump_foreign)
, Flag "ddump-inlinings" (setDumpFlag Opt_D_dump_inlinings)
, Flag "ddump-rule-firings" (setDumpFlag Opt_D_dump_rule_firings)
+ , Flag "ddump-rule-rewrites" (setDumpFlag Opt_D_dump_rule_rewrites)
, Flag "ddump-occur-anal" (setDumpFlag Opt_D_dump_occur_anal)
, Flag "ddump-parsed" (setDumpFlag Opt_D_dump_parsed)
, Flag "ddump-rn" (setDumpFlag Opt_D_dump_rn)
, Flag "frule-check" (SepArg (\s -> upd (\d -> d{ ruleCheck = Just s })))
, Flag "fcontext-stack" (intSuffix (\n d -> d{ ctxtStkDepth = n }))
, Flag "fstrictness-before" (intSuffix (\n d -> d{ strictnessBefore = n : strictnessBefore d }))
+ , Flag "ffloat-lam-args" (intSuffix (\n d -> d{ floatLamArgs = Just n }))
+ , Flag "ffloat-all-lams" (intSuffix (\n d -> d{ floatLamArgs = Nothing }))
------ Profiling ----------------------------------------------------
, Flag "fdph-seq" (NoArg (setDPHBackend DPHSeq))
, Flag "fdph-par" (NoArg (setDPHBackend DPHPar))
, Flag "fdph-this" (NoArg (setDPHBackend DPHThis))
+ , Flag "fdph-none" (NoArg (setDPHBackend DPHNone))
------ Compiler flags -----------------------------------------------
setTarget HscNothing))
, Flag "fbyte-code" (NoArg (setTarget HscInterpreted))
, Flag "fobject-code" (NoArg (setTarget defaultHscTarget))
- , Flag "fglasgow-exts" (NoArg enableGlasgowExts)
- , Flag "fno-glasgow-exts" (NoArg disableGlasgowExts)
+ , Flag "fglasgow-exts" (NoArg (enableGlasgowExts >> deprecate "Use individual extensions instead"))
+ , Flag "fno-glasgow-exts" (NoArg (disableGlasgowExts >> deprecate "Use individual extensions instead"))
]
- ++ map (mkFlag True "f" setDynFlag ) fFlags
- ++ map (mkFlag False "fno-" unSetDynFlag) fFlags
- ++ map (mkFlag True "f" setExtensionFlag ) fLangFlags
- ++ map (mkFlag False "fno-" unSetExtensionFlag) fLangFlags
- ++ map (mkFlag True "X" setExtensionFlag ) xFlags
- ++ map (mkFlag False "XNo" unSetExtensionFlag) xFlags
- ++ map (mkFlag True "X" setLanguage) languageFlags
+ ++ map (mkFlag turnOn "f" setDynFlag ) fFlags
+ ++ map (mkFlag turnOff "fno-" unSetDynFlag) fFlags
+ ++ map (mkFlag turnOn "f" setExtensionFlag ) fLangFlags
+ ++ map (mkFlag turnOff "fno-" unSetExtensionFlag) fLangFlags
+ ++ map (mkFlag turnOn "X" setExtensionFlag ) xFlags
+ ++ map (mkFlag turnOff "XNo" unSetExtensionFlag) xFlags
+ ++ map (mkFlag turnOn "X" setLanguage) languageFlags
package_flags :: [Flag (CmdLineP DynFlags)]
package_flags = [
; deprecate "Use -package instead" }))
]
-type FlagSpec flag
- = ( String -- Flag in string form
- , flag -- Flag in internal form
- , Bool -> DynP ()) -- Extra action to run when the flag is found
- -- Typically, emit a warning or error
- -- True <=> we are turning the flag on
+type TurnOnFlag = Bool -- True <=> we are turning the flag on
-- False <=> we are turning the flag off
+turnOn :: TurnOnFlag; turnOn = True
+turnOff :: TurnOnFlag; turnOff = False
+type FlagSpec flag
+ = ( String -- Flag in string form
+ , flag -- Flag in internal form
+ , TurnOnFlag -> DynP ()) -- Extra action to run when the flag is found
+ -- Typically, emit a warning or error
-mkFlag :: Bool -- ^ True <=> it should be turned on
+mkFlag :: TurnOnFlag -- ^ True <=> it should be turned on
-> String -- ^ The flag prefix
-> (flag -> DynP ()) -- ^ What to do when the flag is found
-> FlagSpec flag -- ^ Specification of this particular flag
-> Flag (CmdLineP DynFlags)
-mkFlag turnOn flagPrefix f (name, flag, extra_action)
- = Flag (flagPrefix ++ name) (NoArg (f flag >> extra_action turnOn))
+mkFlag turn_on flagPrefix f (name, flag, extra_action)
+ = Flag (flagPrefix ++ name) (NoArg (f flag >> extra_action turn_on))
-deprecatedForExtension :: String -> Bool -> DynP ()
+deprecatedForExtension :: String -> TurnOnFlag -> DynP ()
deprecatedForExtension lang turn_on
= deprecate ("use -X" ++ flag ++ " or pragma {-# LANGUAGE " ++ flag ++ " #-} instead")
where
flag | turn_on = lang
| otherwise = "No"++lang
-useInstead :: String -> Bool -> DynP ()
+useInstead :: String -> TurnOnFlag -> DynP ()
useInstead flag turn_on
= deprecate ("Use -f" ++ no ++ flag ++ " instead")
where
no = if turn_on then "" else "no-"
-nop :: Bool -> DynP ()
+nop :: TurnOnFlag -> DynP ()
nop _ = return ()
-- | These @-f\<blah\>@ flags can all be reversed with @-fno-\<blah\>@
( "warn-hi-shadowing", Opt_WarnHiShadows, nop ),
( "warn-implicit-prelude", Opt_WarnImplicitPrelude, nop ),
( "warn-incomplete-patterns", Opt_WarnIncompletePatterns, nop ),
+ ( "warn-incomplete-uni-patterns", Opt_WarnIncompleteUniPatterns, nop ),
( "warn-incomplete-record-updates", Opt_WarnIncompletePatternsRecUpd, nop ),
( "warn-missing-fields", Opt_WarnMissingFields, nop ),
( "warn-missing-import-lists", Opt_WarnMissingImportList, nop ),
( "warn-deprecations", Opt_WarnWarningsDeprecations, nop ),
( "warn-deprecated-flags", Opt_WarnDeprecatedFlags, nop ),
( "warn-orphans", Opt_WarnOrphans, nop ),
+ ( "warn-identities", Opt_WarnIdentities, nop ),
( "warn-auto-orphans", Opt_WarnAutoOrphans, nop ),
( "warn-tabs", Opt_WarnTabs, nop ),
( "warn-unrecognised-pragmas", Opt_WarnUnrecognisedPragmas, nop ),
( "do-eta-reduction", Opt_DoEtaReduction, nop ),
( "case-merge", Opt_CaseMerge, nop ),
( "unbox-strict-fields", Opt_UnboxStrictFields, nop ),
- ( "method-sharing", Opt_MethodSharing, nop ),
+ ( "method-sharing", Opt_MethodSharing,
+ \_ -> deprecate "doesn't do anything any more"),
+ -- Remove altogether in GHC 7.2
( "dicts-cheap", Opt_DictsCheap, nop ),
( "excess-precision", Opt_ExcessPrecision, nop ),
( "eager-blackholing", Opt_EagerBlackHoling, nop ),
( "embed-manifest", Opt_EmbedManifest, nop ),
( "ext-core", Opt_EmitExternalCore, nop ),
( "shared-implib", Opt_SharedImplib, nop ),
+ ( "ghci-sandbox", Opt_GhciSandbox, nop ),
+ ( "helpful-errors", Opt_HelpfulErrors, nop ),
( "building-cabal-package", Opt_BuildingCabalPackage, nop ),
( "implicit-import-qualified", Opt_ImplicitImportQualified, nop )
]
deprecatedForExtension "ImplicitParams" ),
( "scoped-type-variables", Opt_ScopedTypeVariables,
deprecatedForExtension "ScopedTypeVariables" ),
- ( "parr", Opt_PArr,
- deprecatedForExtension "PArr" ),
+ ( "parr", Opt_ParallelArrays,
+ deprecatedForExtension "ParallelArrays" ),
+ ( "PArr", Opt_ParallelArrays,
+ deprecatedForExtension "ParallelArrays" ),
( "allow-overlapping-instances", Opt_OverlappingInstances,
deprecatedForExtension "OverlappingInstances" ),
( "allow-undecidable-instances", Opt_UndecidableInstances,
deprecatedForExtension "DoRec"),
( "DoRec", Opt_DoRec, nop ),
( "Arrows", Opt_Arrows, nop ),
- ( "PArr", Opt_PArr, nop ),
+ ( "ModalTypes", Opt_ModalTypes, nop ),
+ ( "ParallelArrays", Opt_ParallelArrays, nop ),
( "TemplateHaskell", Opt_TemplateHaskell, checkTemplateHaskellOk ),
( "QuasiQuotes", Opt_QuasiQuotes, nop ),
( "Generics", Opt_Generics, nop ),
( "DisambiguateRecordFields", Opt_DisambiguateRecordFields, nop ),
( "OverloadedStrings", Opt_OverloadedStrings, nop ),
( "GADTs", Opt_GADTs, nop ),
+ ( "GADTSyntax", Opt_GADTSyntax, nop ),
( "ViewPatterns", Opt_ViewPatterns, nop ),
( "TypeFamilies", Opt_TypeFamilies, nop ),
( "BangPatterns", Opt_BangPatterns, nop ),
( "MonomorphismRestriction", Opt_MonomorphismRestriction, nop ),
( "NPlusKPatterns", Opt_NPlusKPatterns, nop ),
( "DoAndIfThenElse", Opt_DoAndIfThenElse, nop ),
+ ( "RebindableSyntax", Opt_RebindableSyntax, nop ),
( "MonoPatBinds", Opt_MonoPatBinds, nop ),
( "ExplicitForAll", Opt_ExplicitForAll, nop ),
( "AlternativeLayoutRule", Opt_AlternativeLayoutRule, nop ),
( "AlternativeLayoutRuleTransitional",Opt_AlternativeLayoutRuleTransitional, nop ),
( "DatatypeContexts", Opt_DatatypeContexts, nop ),
+ ( "NondecreasingIndentation", Opt_NondecreasingIndentation, nop ),
+ ( "RelaxedLayout", Opt_RelaxedLayout, nop ),
( "MonoLocalBinds", Opt_MonoLocalBinds, nop ),
( "RelaxedPolyRec", Opt_RelaxedPolyRec,
\ turn_on -> if not turn_on
( "OverlappingInstances", Opt_OverlappingInstances, nop ),
( "UndecidableInstances", Opt_UndecidableInstances, nop ),
( "IncoherentInstances", Opt_IncoherentInstances, nop ),
- ( "PackageImports", Opt_PackageImports, nop ),
- ( "NewQualifiedOperators", Opt_NewQualifiedOperators,
- \_ -> deprecate "The new qualified operator syntax was rejected by Haskell'" )
+ ( "PackageImports", Opt_PackageImports, nop )
]
defaultFlags :: [DynFlag]
= [ Opt_AutoLinkPackages,
Opt_ReadUserPackageConf,
- Opt_MethodSharing,
-
Opt_DoAsmMangling,
Opt_SharedImplib,
Opt_GenManifest,
Opt_EmbedManifest,
- Opt_PrintBindContents
+ Opt_PrintBindContents,
+ Opt_GhciSandbox,
+ Opt_HelpfulErrors
]
++ [f | (ns,f) <- optLevelFlags, 0 `elem` ns]
++ standardWarnings
-impliedFlags :: [(ExtensionFlag, ExtensionFlag)]
+impliedFlags :: [(ExtensionFlag, TurnOnFlag, ExtensionFlag)]
impliedFlags
- = [ (Opt_RankNTypes, Opt_ExplicitForAll)
- , (Opt_Rank2Types, Opt_ExplicitForAll)
- , (Opt_ScopedTypeVariables, Opt_ExplicitForAll)
- , (Opt_LiberalTypeSynonyms, Opt_ExplicitForAll)
- , (Opt_ExistentialQuantification, Opt_ExplicitForAll)
- , (Opt_PolymorphicComponents, Opt_ExplicitForAll)
-
- , (Opt_GADTs, Opt_MonoLocalBinds)
- , (Opt_TypeFamilies, Opt_MonoLocalBinds)
-
- , (Opt_TypeFamilies, Opt_KindSignatures) -- Type families use kind signatures
+ = [ (Opt_RankNTypes, turnOn, Opt_ExplicitForAll)
+ , (Opt_Rank2Types, turnOn, Opt_ExplicitForAll)
+ , (Opt_ScopedTypeVariables, turnOn, Opt_ExplicitForAll)
+ , (Opt_LiberalTypeSynonyms, turnOn, Opt_ExplicitForAll)
+ , (Opt_ExistentialQuantification, turnOn, Opt_ExplicitForAll)
+ , (Opt_PolymorphicComponents, turnOn, Opt_ExplicitForAll)
+ , (Opt_FlexibleInstances, turnOn, Opt_TypeSynonymInstances)
+
+ , (Opt_ModalTypes, turnOn, Opt_RankNTypes)
+ , (Opt_ModalTypes, turnOn, Opt_ExplicitForAll)
+ , (Opt_ModalTypes, turnOn, Opt_RebindableSyntax)
+ , (Opt_ModalTypes, turnOff, Opt_MonomorphismRestriction)
+
+ , (Opt_RebindableSyntax, turnOff, Opt_ImplicitPrelude) -- NB: turn off!
+
+ , (Opt_GADTs, turnOn, Opt_GADTSyntax)
+ , (Opt_GADTs, turnOn, Opt_MonoLocalBinds)
+ , (Opt_TypeFamilies, turnOn, Opt_MonoLocalBinds)
+
+ , (Opt_TypeFamilies, turnOn, Opt_KindSignatures) -- Type families use kind signatures
-- all over the place
- , (Opt_ImpredicativeTypes, Opt_RankNTypes)
+ , (Opt_ImpredicativeTypes, turnOn, Opt_RankNTypes)
-- Record wild-cards implies field disambiguation
-- Otherwise if you write (C {..}) you may well get
-- stuff like " 'a' not in scope ", which is a bit silly
-- if the compiler has just filled in field 'a' of constructor 'C'
- , (Opt_RecordWildCards, Opt_DisambiguateRecordFields)
+ , (Opt_RecordWildCards, turnOn, Opt_DisambiguateRecordFields)
+
+ , (Opt_ParallelArrays, turnOn, Opt_ParallelListComp)
]
optLevelFlags :: [([Int], DynFlag)]
]
minusWOpts :: [DynFlag]
+-- Things you get with -W
minusWOpts
= standardWarnings ++
[ Opt_WarnUnusedBinds,
]
minusWallOpts :: [DynFlag]
+-- Things you get with -Wall
minusWallOpts
= minusWOpts ++
[ Opt_WarnTypeDefaults,
Opt_WarnUnusedDoBind
]
--- minuswRemovesOpts should be every warning option
minuswRemovesOpts :: [DynFlag]
+-- minuswRemovesOpts should be every warning option
minuswRemovesOpts
= minusWallOpts ++
- [Opt_WarnImplicitPrelude,
+ [Opt_WarnTabs,
Opt_WarnIncompletePatternsRecUpd,
+ Opt_WarnIncompleteUniPatterns,
Opt_WarnMonomorphism,
Opt_WarnUnrecognisedPragmas,
Opt_WarnAutoOrphans,
- Opt_WarnTabs
- ]
+ Opt_WarnImplicitPrelude
+ ]
enableGlasgowExts :: DynP ()
enableGlasgowExts = do setDynFlag Opt_PrintExplicitForalls
glasgowExtsFlags = [
Opt_ForeignFunctionInterface
, Opt_UnliftedFFITypes
- , Opt_GADTs
, Opt_ImplicitParams
, Opt_ScopedTypeVariables
, Opt_UnboxedTuples
, Opt_ParallelListComp
, Opt_EmptyDataDecls
, Opt_KindSignatures
- , Opt_GeneralizedNewtypeDeriving
- , Opt_TypeFamilies ]
+ , Opt_GeneralizedNewtypeDeriving ]
#ifdef GHCI
-- Consult the RTS to find whether GHC itself has been built profiled
unSetDynFlag f = upd (\dfs -> dopt_unset dfs f)
--------------------------
-setLanguage :: Language -> DynP ()
-setLanguage l = upd (\dfs -> dfs { language = Just l })
-
---------------------------
setExtensionFlag, unSetExtensionFlag :: ExtensionFlag -> DynP ()
setExtensionFlag f = do { upd (\dfs -> xopt_set dfs f)
- ; mapM_ setExtensionFlag deps }
+ ; sequence_ deps }
where
- deps = [ d | (f', d) <- impliedFlags, f' == f ]
+ deps = [ if turn_on then setExtensionFlag d
+ else unSetExtensionFlag d
+ | (f', turn_on, d) <- impliedFlags, f' == f ]
-- When you set f, set the ones it implies
-- NB: use setExtensionFlag recursively, in case the implied flags
-- implies further flags
- -- When you un-set f, however, we don't un-set the things it implies
- -- (except for -fno-glasgow-exts, which is treated specially)
unSetExtensionFlag f = upd (\dfs -> xopt_unset dfs f)
+ -- When you un-set f, however, we don't un-set the things it implies
+ -- (except for -fno-glasgow-exts, which is treated specially)
--------------------------
setDumpFlag' :: DynFlag -> DynP ()
-- -Odph is equivalent to
--
-- -O2 optimise as much as possible
--- -fno-method-sharing sharing specialisation defeats fusion
--- sometimes
--- -fdicts-cheap always inline dictionaries
-- -fmax-simplifier-iterations20 this is necessary sometimes
--- -fsimplifier-phases=3 we use an additional simplifier phase
--- for fusion
--- -fno-spec-constr-threshold run SpecConstr even for big loops
--- -fno-spec-constr-count SpecConstr as much as possible
--- -finline-enough-args hack to prevent excessive inlining
+-- -fsimplifier-phases=3 we use an additional simplifier phase for fusion
--
setDPHOpt :: DynFlags -> DynFlags
setDPHOpt dflags = setOptLevel 2 (dflags { maxSimplIterations = 20
, simplPhases = 3
- , specConstrThreshold = Nothing
- , specConstrCount = Nothing
})
- `dopt_set` Opt_DictsCheap
- `dopt_unset` Opt_MethodSharing
-data DPHBackend = DPHPar
- | DPHSeq
- | DPHThis
+-- Determines the package used by the vectoriser for the symbols of the vectorised code.
+-- 'DPHNone' indicates that no data-parallel backend library is available; hence, the
+-- vectoriser cannot be used.
+--
+data DPHBackend = DPHPar -- "dph-par"
+ | DPHSeq -- "dph-seq"
+ | DPHThis -- the currently compiled package
+ | DPHNone -- no DPH library available
deriving(Eq, Ord, Enum, Show)
setDPHBackend :: DPHBackend -> DynP ()
-setDPHBackend backend
- = do
- upd $ \dflags -> dflags { dphBackend = backend }
- mapM_ exposePackage (dph_packages backend)
- where
- dph_packages DPHThis = []
- dph_packages DPHPar = ["dph-prim-par", "dph-par"]
- dph_packages DPHSeq = ["dph-prim-seq", "dph-seq"]
+setDPHBackend backend = upd $ \dflags -> dflags { dphBackend = backend }
+-- Query the DPH backend package to be used by the vectoriser.
+--
dphPackage :: DynFlags -> PackageId
-dphPackage dflags = case dphBackend dflags of
- DPHPar -> dphParPackageId
- DPHSeq -> dphSeqPackageId
- DPHThis -> thisPackage dflags
+dphPackage dflags
+ = case dphBackend dflags of
+ DPHPar -> dphParPackageId
+ DPHSeq -> dphSeqPackageId
+ DPHThis -> thisPackage dflags
+ DPHNone -> ghcError (CmdLineError dphBackendError)
+
+dphBackendError :: String
+dphBackendError = "To use -fvectorise select a DPH backend with -fdph-par or -fdph-seq"
setMainIs :: String -> DynP ()
setMainIs arg
("Project version", String cProjectVersion),
("Booter version", String cBooterVersion),
("Stage", String cStage),
- ("Build platform", String cBuildPlatform),
- ("Host platform", String cHostPlatform),
- ("Target platform", String cTargetPlatform),
+ ("Build platform", String cBuildPlatformString),
+ ("Host platform", String cHostPlatformString),
+ ("Target platform", String cTargetPlatformString),
("Have interpreter", String cGhcWithInterpreter),
("Object splitting", String cSplitObjs),
("Have native code generator", String cGhcWithNativeCodeGen),
- ("Have llvm code generator", String cGhcWithLlvmCodeGen),
- ("Use archives for ghci", String (show cUseArchivesForGhci)),
("Support SMP", String cGhcWithSMP),
("Unregisterised", String cGhcUnregisterised),
("Tables next to code", String cGhcEnableTablesNextToCode),
("Leading underscore", String cLeadingUnderscore),
("Debug on", String (show debugIsOn)),
("LibDir", FromDynFlags topDir),
- ("Global Package DB", FromDynFlags systemPackageConfig)
+ ("Global Package DB", FromDynFlags systemPackageConfig),
+ ("C compiler flags", String (show cCcOpts)),
+ ("Gcc Linker flags", String (show cGccLinkerOpts)),
+ ("Ld Linker flags", String (show cLdLinkerOpts))
]
projects / ghc-hetmet.git / blobdiff