-- and binds that to b.
mkextracts :: CoreBndr -> Int -> TransformMonad (Maybe (CoreBndr, CoreExpr))
mkextracts b i =
+ -- TODO: Use free variables instead of is_wild. is_wild is a hack.
if is_wild b || Type.isFunTy (Id.idType b)
-- Don't create extra bindings for binders that are already wild, or
-- for binders that bind function types (to prevent loops with
caseremovetop = everywhere ("caseremove", caseremove)
--------------------------------
--- Application simplification
+-- Argument extraction
--------------------------------
--- Make sure that all arguments in an application are simple variables.
+-- Make sure that all arguments of a representable type are simple variables.
appsimpl, appsimpltop :: Transform
--- Don't simplify arguments that are already simple. Do simplify datacons,
--- however, since we can't portmap literals.
-appsimpl expr@(App f (Var v)) | not $ Id.isDataConWorkId v = return expr
+-- Don't simplify arguments that are already simple.
+appsimpl expr@(App f (Var v)) = return expr
-- Simplify all non-applicable (to prevent loops with inlinefun) arguments,
-- except for type arguments (since a let can't bind type vars, only a lambda
-- can). Do this by introducing a new Let that binds the argument and passing
then
-- This should really only happen at the top level... TODO: Give
-- a different error if this happens down in the recursion.
- error $ "Function " ++ show bndr ++ " is polymorphic, can't normalize"
+ error $ "\nNormalize.normalizeBind: Function " ++ show bndr ++ " is polymorphic, can't normalize"
else do
normalized_funcs <- getA tsNormalized
-- See if this function was normalized already
return ()
-- We don't have a value for this binder. This really shouldn't
-- happen for local id's...
- Nothing -> error $ "No value found for binder " ++ pprString bndr ++ "? This should not happen!"
+ Nothing -> error $ "\nNormalize.normalizeBind: No value found for binder " ++ pprString bndr ++ "? This should not happen!"