X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2FsimplCore%2FSimplEnv.lhs;h=a2e06a0bf78a74876940a8ede7aa001e300fa530;hp=12b3ce56ce377453d57d739699f62a81266f93ad;hb=e79c9ce01d0ce4412bd4bcd99c8c728a6a2ec569;hpb=6ccd648bf016aa9cfa13612f0f19be6badea16d1 diff --git a/compiler/simplCore/SimplEnv.lhs b/compiler/simplCore/SimplEnv.lhs index 12b3ce5..a2e06a0 100644 --- a/compiler/simplCore/SimplEnv.lhs +++ b/compiler/simplCore/SimplEnv.lhs @@ -29,7 +29,7 @@ module SimplEnv ( simplNonRecBndr, simplRecBndrs, simplLamBndr, simplLamBndrs, simplBinder, simplBinders, addBndrRules, - substExpr, substTy, substUnfolding, + substExpr, substWorker, substTy, -- Floats Floats, emptyFloats, isEmptyFloats, addNonRec, addFloats, extendFloats, @@ -49,7 +49,7 @@ import VarEnv import VarSet import OrdList import Id -import qualified CoreSubst ( Subst, mkSubst, substExpr, substSpec, substUnfolding ) +import qualified CoreSubst ( Subst, mkSubst, substExpr, substSpec, substWorker ) import qualified Type ( substTy, substTyVarBndr ) import Type hiding ( substTy, substTyVarBndr ) import Coercion @@ -528,7 +528,7 @@ simplLamBndr env bndr where old_unf = idUnfolding bndr (env1, id1) = substIdBndr env bndr - id2 = id1 `setIdUnfolding` substUnfolding env False old_unf + id2 = id1 `setIdUnfolding` substUnfolding env old_unf env2 = modifyInScope env1 id2 --------------- @@ -660,6 +660,29 @@ addBndrRules env in_id out_id old_rules = idSpecialisation in_id new_rules = CoreSubst.substSpec subst out_id old_rules final_id = out_id `setIdSpecialisation` new_rules + +------------------ +substIdType :: SimplEnv -> Id -> Id +substIdType (SimplEnv { seInScope = in_scope, seTvSubst = tv_env}) id + | isEmptyVarEnv tv_env || isEmptyVarSet (tyVarsOfType old_ty) = id + | otherwise = Id.setIdType id (Type.substTy (TvSubst in_scope tv_env) old_ty) + -- The tyVarsOfType is cheaper than it looks + -- because we cache the free tyvars of the type + -- in a Note in the id's type itself + where + old_ty = idType id + +------------------ +substUnfolding :: SimplEnv -> Unfolding -> Unfolding +substUnfolding _ NoUnfolding = NoUnfolding +substUnfolding _ (OtherCon cons) = OtherCon cons +substUnfolding env (CompulsoryUnfolding rhs) = CompulsoryUnfolding (substExpr env rhs) +substUnfolding env (CoreUnfolding rhs t v w g) = CoreUnfolding (substExpr env rhs) t v w g + +------------------ +substWorker :: SimplEnv -> WorkerInfo -> WorkerInfo +substWorker _ NoWorker = NoWorker +substWorker env wkr_info = CoreSubst.substWorker (mkCoreSubst env) wkr_info \end{code} @@ -695,28 +718,9 @@ mkCoreSubst (SimplEnv { seInScope = in_scope, seTvSubst = tv_env, seIdSubst = id fiddle (DoneId v) = Var v fiddle (ContEx tv id e) = CoreSubst.substExpr (mk_subst tv id) e ------------------- -substIdType :: SimplEnv -> Id -> Id -substIdType (SimplEnv { seInScope = in_scope, seTvSubst = tv_env}) id - | isEmptyVarEnv tv_env || isEmptyVarSet (tyVarsOfType old_ty) = id - | otherwise = Id.setIdType id (Type.substTy (TvSubst in_scope tv_env) old_ty) - -- The tyVarsOfType is cheaper than it looks - -- because we cache the free tyvars of the type - -- in a Note in the id's type itself - where - old_ty = idType id - ------------------- substExpr :: SimplEnv -> CoreExpr -> CoreExpr substExpr env expr = CoreSubst.substExpr (mkCoreSubst env) expr -- Do *not* short-cut in the case of an empty substitution -- See CoreSubst: Note [Extending the Subst] - -substUnfolding :: SimplEnv -> Bool -> Unfolding -> Unfolding -substUnfolding env is_top_lvl unf - | InlineRule {} <- unf' = unf' { uf_is_top = is_top_lvl } - | otherwise = unf' - where - unf' = CoreSubst.substUnfolding (mkCoreSubst env) unf \end{code}