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GHC 10.0.0.20260917 · lts/ghc-10.0.x · 04404a6 · 2026-10-19

Moduleghc-10.0.0.20260917GHC2024

GHC.Core.Opt.ConstantFold

Constant Folder

Synopsis

value primOpRules
value builtinRules
value caseRules
value caseRules2

Packageghc-10.0.0.20260917
Exports4
LanguageGHC2024
LicenceBSD-3-Clause
SourceConstantFold.hs

valueprimOpRules :: Name -> PrimOp -> Maybe CoreRule

valuebuiltinRules :: [CoreRule]

valuecaseRules

:: Platform
-> CoreExpr
-> Maybe (CoreExpr, AltCon -> Maybe AltCon, Id -> CoreExpr)

Match the scrutinee of a case and potentially return a new scrutinee and a function to apply to each literal alternative.

valuecaseRules2

:: Platform
Target platform
-> InExpr
Scrutinee
-> InId
Case-binder
-> [InAlt]
Alternatives in standard (increasing) order
-> Maybe (InExpr, InId, [InAlt])

Case rules

It's important that occurrence info are present, hence the use of In* types.