\begin{code}
module CoreTidy (
- tidyExpr, tidyVarOcc, tidyRule, tidyRules
+ tidyExpr, tidyVarOcc, tidyRule, tidyRules, tidyUnfolding
) where
#include "HsVersions.h"
import CoreArity
import Id
import IdInfo
-import Type
+import TcType( tidyType, tidyCo, tidyTyVarBndr )
import Var
import VarEnv
import UniqFM
import Name hiding (tidyNameOcc)
import SrcLoc
import Maybes
-
import Data.List
+import Outputable
\end{code}
-> (TidyEnv, CoreBind)
tidyBind env (NonRec bndr rhs)
- = tidyLetBndr env (bndr,rhs) =: \ (env', bndr') ->
+ = tidyLetBndr env env (bndr,rhs) =: \ (env', bndr') ->
(env', NonRec bndr' (tidyExpr env' rhs))
tidyBind env (Rec prs)
- = mapAccumL tidyLetBndr env prs =: \ (env', bndrs') ->
+ = let
+ (env', bndrs') = mapAccumL (tidyLetBndr env') env prs
+ in
map (tidyExpr env') (map snd prs) =: \ rhss' ->
(env', Rec (zip bndrs' rhss'))
------------ Expressions --------------
tidyExpr :: TidyEnv -> CoreExpr -> CoreExpr
tidyExpr env (Var v) = Var (tidyVarOcc env v)
-tidyExpr env (Type ty) = Type (tidyType env ty)
+tidyExpr env (Type ty) = Type (tidyType env ty)
+tidyExpr env (Coercion co) = Coercion (tidyCo env co)
tidyExpr _ (Lit lit) = Lit lit
tidyExpr env (App f a) = App (tidyExpr env f) (tidyExpr env a)
tidyExpr env (Note n e) = Note (tidyNote env n) (tidyExpr env e)
-tidyExpr env (Cast e co) = Cast (tidyExpr env e) (tidyType env co)
+tidyExpr env (Cast e co) = Cast (tidyExpr env e) (tidyCo env co)
tidyExpr env (Let b e)
= tidyBind env b =: \ (env', b') ->
tidyBndrs :: TidyEnv -> [Var] -> (TidyEnv, [Var])
tidyBndrs env vars = mapAccumL tidyBndr env vars
-tidyLetBndr :: TidyEnv -> (Id, CoreExpr) -> (TidyEnv, Var)
+tidyLetBndr :: TidyEnv -- Knot-tied version for unfoldings
+ -> TidyEnv -- The one to extend
+ -> (Id, CoreExpr) -> (TidyEnv, Var)
-- Used for local (non-top-level) let(rec)s
-tidyLetBndr env (id,rhs)
- = ((tidy_env,new_var_env), final_id)
+tidyLetBndr rec_tidy_env env (id,rhs)
+ = ((tidy_occ_env,new_var_env), final_id)
where
- ((tidy_env,var_env), new_id) = tidyIdBndr env id
+ ((tidy_occ_env,var_env), new_id) = tidyIdBndr env id
+ new_var_env = extendVarEnv var_env id final_id
+ -- Override the env we get back from tidyId with the
+ -- new IdInfo so it gets propagated to the usage sites.
-- We need to keep around any interesting strictness and
-- demand info because later on we may need to use it when
new_info = idInfo new_id
`setArityInfo` exprArity rhs
`setStrictnessInfo` strictnessInfo idinfo
- `setDemandInfo` demandInfo idinfo
+ `setDemandInfo` demandInfo idinfo
`setInlinePragInfo` inlinePragInfo idinfo
+ `setUnfoldingInfo` new_unf
- -- Override the env we get back from tidyId with the new IdInfo
- -- so it gets propagated to the usage sites.
- new_var_env = extendVarEnv var_env id final_id
+ new_unf | isStableUnfolding unf = tidyUnfolding rec_tidy_env unf (panic "tidy_unf")
+ | otherwise = noUnfolding
+ unf = unfoldingInfo idinfo
-- Non-top-level variables
tidyIdBndr :: TidyEnv -> Id -> (TidyEnv, Id)
in
((tidy_env', var_env'), id')
}
+
+------------ Unfolding --------------
+tidyUnfolding :: TidyEnv -> Unfolding -> Unfolding -> Unfolding
+tidyUnfolding tidy_env (DFunUnfolding ar con ids) _
+ = DFunUnfolding ar con (map (fmap (tidyExpr tidy_env)) ids)
+tidyUnfolding tidy_env
+ unf@(CoreUnfolding { uf_tmpl = unf_rhs, uf_src = src })
+ unf_from_rhs
+ | isStableSource src
+ = unf { uf_tmpl = tidyExpr tidy_env unf_rhs, -- Preserves OccInfo
+ uf_src = tidySrc tidy_env src }
+ | otherwise
+ = unf_from_rhs
+tidyUnfolding _ unf _ = unf -- NoUnfolding or OtherCon
+
+tidySrc :: TidyEnv -> UnfoldingSource -> UnfoldingSource
+tidySrc tidy_env (InlineWrapper w) = InlineWrapper (tidyVarOcc tidy_env w)
+tidySrc _ inl_info = inl_info
\end{code}
Note [Tidy IdInfo]