GHC.Core.Opt.Simplify.Utils

Documentation

rebuildLam :: SimplEnv -> [OutBndr] -> OutExpr -> SimplCont -> SimplM OutExpr

mkCase :: SimplMode -> OutExpr -> OutId -> OutType -> [OutAlt] -> SimplM OutExpr

prepareAlts :: OutExpr -> OutId -> [InAlt] -> SimplM ([AltCon], [InAlt])

tryEtaExpandRhs :: SimplEnv -> BindContext -> OutId -> OutExpr -> SimplM (ArityType, OutExpr)

wantEtaExpansion :: CoreExpr -> Bool

preInlineUnconditionally :: SimplEnv -> TopLevelFlag -> InId -> InExpr -> StaticEnv -> Maybe SimplEnv

postInlineUnconditionally :: SimplEnv -> BindContext -> OutId -> OccInfo -> OutExpr -> Bool

activeUnfolding :: SimplMode -> Id -> Bool

activeRule :: SimplMode -> Activation -> Bool

getUnfoldingInRuleMatch :: SimplEnv -> InScopeEnv

updModeForStableUnfoldings :: Activation -> SimplMode -> SimplMode

updModeForRules :: SimplMode -> SimplMode

data BindContext

Constructors

BC_Let TopLevelFlag RecFlag

BC_Join RecFlag SimplCont

bindContextLevel :: BindContext -> TopLevelFlag

data SimplCont

Constructors

Stop

Stop[e] = e

Fields

• OutType

  Type of the hole

• CallCtxt

  Tells if there is something interesting about the syntactic context, and hence the inliner should be a bit keener (see interestingCallContext) Specifically: This is an argument of a function that has RULES Inlining the call might allow the rule to fire Never ValAppCxt (use ApplyToVal instead) or CaseCtxt (use Select instead)

• SubDemand

  The evaluation context of e. Tells how e is evaluated. This fuels eta-expansion or eta-reduction without looking at lambda bodies, for example.

  See Note [Eta reduction based on evaluation context] The evaluation context for other SimplConts can be reconstructed with contEvalContext

CastIt OutCoercion SimplCont

ApplyToVal

Fields

• sc_dup :: DupFlag
• sc_hole_ty :: OutType
• sc_arg :: InExpr
• sc_env :: StaticEnv
• sc_cont :: SimplCont

ApplyToTy

Fields

• sc_arg_ty :: OutType
• sc_hole_ty :: OutType
• sc_cont :: SimplCont

Select

Fields

• sc_dup :: DupFlag
• sc_bndr :: InId
• sc_alts :: [InAlt]
• sc_env :: StaticEnv
• sc_cont :: SimplCont

StrictBind

Fields

• sc_dup :: DupFlag
• sc_bndr :: InId
• sc_body :: InExpr
• sc_env :: StaticEnv
• sc_cont :: SimplCont

StrictArg

Fields

• sc_dup :: DupFlag
• sc_fun :: ArgInfo
• sc_fun_ty :: OutType
• sc_cont :: SimplCont

TickIt CoreTickish SimplCont

Instances

Outputable SimplCont

Defined in GHC.Core.Opt.Simplify.Utils

Methods

ppr :: SimplCont -> SDoc

data DupFlag

Constructors

NoDup

Simplified

OkToDup

Instances

Outputable DupFlag

Defined in GHC.Core.Opt.Simplify.Utils

Methods

ppr :: DupFlag -> SDoc

type StaticEnv = SimplEnv

isSimplified :: DupFlag -> Bool

contIsStop :: SimplCont -> Bool

contIsDupable :: SimplCont -> Bool

contResultType :: SimplCont -> OutType

contHoleType :: SimplCont -> OutType

contHoleScaling :: SimplCont -> Mult

contIsTrivial :: SimplCont -> Bool

contArgs :: SimplCont -> (Bool, [ArgSummary], SimplCont)

contIsRhs :: SimplCont -> Maybe RecFlag

countArgs :: SimplCont -> Int

mkBoringStop :: OutType -> SimplCont

mkRhsStop :: OutType -> RecFlag -> Demand -> SimplCont

mkLazyArgStop :: OutType -> ArgInfo -> SimplCont

interestingCallContext :: SimplEnv -> SimplCont -> CallCtxt

data ArgInfo

Constructors

ArgInfo

Fields

• ai_fun :: OutId
• ai_args :: [ArgSpec]
• ai_rewrite :: RewriteCall
• ai_encl :: Bool
• ai_dmds :: [Demand]
• ai_discs :: [Int]

Instances

Outputable ArgInfo

Defined in GHC.Core.Opt.Simplify.Utils

Methods

ppr :: ArgInfo -> SDoc

data ArgSpec

Constructors

ValArg

Fields

• as_dmd :: Demand
• as_arg :: OutExpr
• as_hole_ty :: OutType

TyArg

Fields

• as_arg_ty :: OutType
• as_hole_ty :: OutType

CastBy OutCoercion

Instances

Outputable ArgSpec

Defined in GHC.Core.Opt.Simplify.Utils

Methods

ppr :: ArgSpec -> SDoc

data RewriteCall

Constructors

TryRules FullArgCount [CoreRule]

TryInlining

TryNothing

mkArgInfo :: SimplEnv -> RuleEnv -> Id -> SimplCont -> ArgInfo

addValArgTo :: ArgInfo -> OutExpr -> OutType -> ArgInfo

addCastTo :: ArgInfo -> OutCoercion -> ArgInfo

addTyArgTo :: ArgInfo -> OutType -> OutType -> ArgInfo

argInfoExpr :: OutId -> [ArgSpec] -> OutExpr

argInfoAppArgs :: [ArgSpec] -> [OutExpr]

pushSimplifiedArgs :: SimplEnv -> [ArgSpec] -> SimplCont -> SimplCont

pushSimplifiedRevArgs :: SimplEnv -> [ArgSpec] -> SimplCont -> SimplCont

isStrictArgInfo :: ArgInfo -> Bool

lazyArgContext :: ArgInfo -> CallCtxt

abstractFloats :: UnfoldingOpts -> TopLevelFlag -> [OutTyVar] -> SimplFloats -> OutExpr -> SimplM ([OutBind], OutExpr)

isExitJoinId :: Var -> Bool