%
-% (c) The GRASP/AQUA Project, Glasgow University, 1992-1995
+% (c) The GRASP/AQUA Project, Glasgow University, 1992-1996
%
\section[CoreSyn]{A data type for the Haskell compiler midsection}
#include "HsVersions.h"
module CoreSyn (
- CoreBinding(..), CoreExpr(..), CoreAtom(..),
- CoreCaseAlternatives(..), CoreCaseDefault(..),
-#ifdef DPH
- CoreParQuals(..),
- CoreParCommunicate(..),
-#endif {- Data Parallel Haskell -}
- mkCoTyApp,
- pprCoreBinding, pprCoreExpr,
-
- CoreArg(..), applyToArgs, decomposeArgs, collectArgs,
-
- -- and to make the interface self-sufficient ...
- Id, UniType, TyVar, TyCon, PrimOp, BasicLit,
- PprStyle, PrettyRep, CostCentre, Maybe
+ GenCoreBinding(..), GenCoreExpr(..),
+ GenCoreArg(..), GenCoreBinder(..), GenCoreCaseAlts(..),
+ GenCoreCaseDefault(..),
+ Coercion(..),
+
+ bindersOf, pairsFromCoreBinds, rhssOfBind,
+
+ mkGenApp, mkValApp, mkTyApp, mkUseApp,
+ mkApp, mkCon, mkPrim,
+ mkValLam, mkTyLam, mkUseLam,
+ mkLam,
+ collectBinders, collectUsageAndTyBinders, collectValBinders,
+ isValBinder, notValBinder,
+
+ collectArgs, initialTyArgs, initialValArgs, isValArg, notValArg, numValArgs,
+
+ mkCoLetAny, mkCoLetNoUnboxed, mkCoLetUnboxedToCase,
+ mkCoLetsAny, mkCoLetsNoUnboxed, mkCoLetsUnboxedToCase,
+ mkCoLetrecAny, mkCoLetrecNoUnboxed,
+
+ rhssOfAlts,
+
+ -- Common type instantiation...
+ SYN_IE(CoreBinding),
+ SYN_IE(CoreExpr),
+ SYN_IE(CoreBinder),
+ SYN_IE(CoreArg),
+ SYN_IE(CoreCaseAlts),
+ SYN_IE(CoreCaseDefault),
+
+ -- And not-so-common type instantiations...
+ SYN_IE(TaggedCoreBinding),
+ SYN_IE(TaggedCoreExpr),
+ SYN_IE(TaggedCoreBinder),
+ SYN_IE(TaggedCoreArg),
+ SYN_IE(TaggedCoreCaseAlts),
+ SYN_IE(TaggedCoreCaseDefault),
+
+ SYN_IE(SimplifiableCoreBinding),
+ SYN_IE(SimplifiableCoreExpr),
+ SYN_IE(SimplifiableCoreBinder),
+ SYN_IE(SimplifiableCoreArg),
+ SYN_IE(SimplifiableCoreCaseAlts),
+ SYN_IE(SimplifiableCoreCaseDefault)
) where
-import AbsPrel ( PrimOp, PrimKind
- IF_ATTACK_PRAGMAS(COMMA tagOf_PrimOp)
- IF_ATTACK_PRAGMAS(COMMA pprPrimOp)
- )
-import AbsUniType ( isPrimType, pprParendUniType, TyVar, TyCon, UniType
- IF_ATTACK_PRAGMAS(COMMA cmpTyCon COMMA cmpTyVar)
- IF_ATTACK_PRAGMAS(COMMA cmpUniType)
- )
-import BasicLit ( BasicLit )
-import Id ( getIdUniType, isBottomingId, Id
- IF_ATTACK_PRAGMAS(COMMA bottomIsGuaranteed)
- )
-import Outputable
-import Pretty
+IMP_Ubiq(){-uitous-}
+
import CostCentre ( showCostCentre, CostCentre )
-import Util
+import Id ( idType, GenId{-instance Eq-} )
+import Type ( isUnboxedType )
+import Usage ( SYN_IE(UVar) )
+import Util ( panic, assertPanic {-pprTrace:ToDo:rm-} )
\end{code}
%************************************************************************
%* *
-\subsection[CoreTopBinding_and_CoreBinding]{@CoreTopBinding@ and @CoreBinding@}
+\subsection[CoreTopBinding_and_CoreBinding]{@CoreTopBinding@ and @GenCoreBinding@}
%* *
%************************************************************************
Core programs, bindings, expressions, etc., are parameterised with
respect to the information kept about binding and bound occurrences of
-variables, called {\em binders} and {\em bindees}, respectively. [I
+variables, called {\em binders} and {\em val_occ tyvar uvars}, respectively. [I
don't really like the pair of names; I prefer {\em binder} and {\em
bounder}. Or {\em binder} and {\em var}.]
-A @CoreBinding@ is either a single non-recursive binding of a
+A @GenCoreBinding@ is either a single non-recursive binding of a
``binder'' to an expression, or a mutually-recursive blob of same.
\begin{code}
-data CoreBinding binder bindee
- = CoNonRec binder (CoreExpr binder bindee)
- | CoRec [(binder, CoreExpr binder bindee)]
+data GenCoreBinding val_bdr val_occ tyvar uvar
+ = NonRec val_bdr (GenCoreExpr val_bdr val_occ tyvar uvar)
+ | Rec [(val_bdr, GenCoreExpr val_bdr val_occ tyvar uvar)]
\end{code}
-%************************************************************************
-%* *
-\subsection[CoreAtom]{Core atoms: @CoreAtom@}
-%* *
-%************************************************************************
+\begin{code}
+bindersOf :: GenCoreBinding val_bdr val_occ tyvar uvar -> [val_bdr]
-Same deal as @StgAtoms@, except that, for @Core@, the atomic object
-may need to be applied to some types.
+pairsFromCoreBinds ::
+ [GenCoreBinding val_bdr val_occ tyvar uvar] ->
+ [(val_bdr, GenCoreExpr val_bdr val_occ tyvar uvar)]
-\begin{code}
-data CoreAtom bindee
- = CoVarAtom bindee
- | CoLitAtom BasicLit
+rhssOfBind :: GenCoreBinding val_bdr val_occ tyvar uvar -> [GenCoreExpr val_bdr val_occ tyvar uvar]
+
+bindersOf (NonRec binder _) = [binder]
+bindersOf (Rec pairs) = [binder | (binder, _) <- pairs]
+
+pairsFromCoreBinds [] = []
+pairsFromCoreBinds ((NonRec b e) : bs) = (b,e) : pairsFromCoreBinds bs
+pairsFromCoreBinds ((Rec pairs) : bs) = pairs ++ pairsFromCoreBinds bs
+
+rhssOfBind (NonRec _ rhs) = [rhs]
+rhssOfBind (Rec pairs) = [rhs | (_,rhs) <- pairs]
\end{code}
%************************************************************************
%* *
-\subsection[CoreExpr]{Core expressions: @CoreExpr@}
+\subsection[GenCoreExpr]{Core expressions: @GenCoreExpr@}
%* *
%************************************************************************
-@CoreExpr@ is the heart of the ``core'' data types; it is
+@GenCoreExpr@ is the heart of the ``core'' data types; it is
(more-or-less) boiled-down second-order polymorphic lambda calculus.
-For types in the core world, we just keep using @UniTypes@.
+For types in the core world, we just keep using @Types@.
\begin{code}
-data CoreExpr binder bindee
- = CoVar bindee
- | CoLit BasicLit -- literal constants
+data GenCoreExpr val_bdr val_occ tyvar uvar
+ = Var val_occ
+ | Lit Literal -- literal constants
\end{code}
-@CoCons@ and @CoPrims@ are saturated constructor and primitive-op
-applications (see the comment). Note: @CoCon@s are only set up by the
+@Cons@ and @Prims@ are saturated constructor and primitive-op
+applications (see the comment). Note: @Con@s are only set up by the
simplifier (and by the desugarer when it knows what it's doing). The
-desugarer sets up constructors as applications of global @CoVars@s.
+desugarer sets up constructors as applications of global @Vars@s.
+
\begin{code}
- | CoCon Id [UniType] [CoreAtom bindee]
- -- saturated constructor application:
- -- the constructor is a function of the form:
- -- /\ a1 -> ... /\ am -> \ b1 -> ... \ bn ->
- -- <expr> where "/\" is a type lambda and "\" the
- -- regular kind; there will be "m" UniTypes and
- -- "n" bindees in the CoCon args.
-
- | CoPrim PrimOp [UniType] [CoreAtom bindee]
- -- saturated primitive operation;
- -- comment on CoCons applies here, too.
- -- The types work the same way
- -- (PrimitiveOps may be polymorphic).
+ | Con Id [GenCoreArg val_occ tyvar uvar]
+ -- Saturated constructor application:
+ -- The constructor is a function of the form:
+ -- /\ a1 -> ... /\ am -> \ b1 -> ... \ bn ->
+ -- <expr> where "/\" is a type lambda and "\" the
+ -- regular kind; there will be "m" Types and
+ -- "n" bindees in the Con args.
+
+ | Prim PrimOp [GenCoreArg val_occ tyvar uvar]
+ -- saturated primitive operation;
+ -- comment on Cons applies here, too.
\end{code}
-Lambdas have multiple binders; this is good for the lambda lifter.
-Single binders may be simulated easily with multiple binders; vice
-versa is a pain.
+Ye olde abstraction and application operators.
\begin{code}
- | CoLam [binder] -- lambda var_1 ... var_n -> CoreExpr
- (CoreExpr binder bindee)
- | CoTyLam TyVar -- Lambda TyVar -> CoreExpr
- (CoreExpr binder bindee)
-
- | CoApp (CoreExpr binder bindee)
- (CoreAtom bindee)
- | CoTyApp (CoreExpr binder bindee)
- UniType -- type application
+ | Lam (GenCoreBinder val_bdr tyvar uvar)
+ (GenCoreExpr val_bdr val_occ tyvar uvar)
+
+ | App (GenCoreExpr val_bdr val_occ tyvar uvar)
+ (GenCoreArg val_occ tyvar uvar)
\end{code}
-Case expressions (\tr{case CoreExpr of <List of alternatives>}): there
+Case expressions (\tr{case <expr> of <List of alternatives>}): there
are really two flavours masquerading here---those for scrutinising
{\em algebraic} types and those for {\em primitive} types. Please see
-under @CoreCaseAlternatives@.
+under @GenCoreCaseAlts@.
\begin{code}
- | CoCase (CoreExpr binder bindee)
- (CoreCaseAlternatives binder bindee)
+ | Case (GenCoreExpr val_bdr val_occ tyvar uvar)
+ (GenCoreCaseAlts val_bdr val_occ tyvar uvar)
\end{code}
A Core case expression \tr{case e of v -> ...} implies evaluation of
\tr{e}; it is not equivalent to \tr{let v = in ...} (as with a Haskell
\tr{case}).
-Non-recursive @CoLets@ only have one binding; having more than one
+Non-recursive @Lets@ only have one binding; having more than one
doesn't buy you much, and it is an easy way to mess up variable
scoping.
\begin{code}
- | CoLet (CoreBinding binder bindee)
- (CoreExpr binder bindee)
- -- both recursive and non-.
- -- The "CoreBinding" records that information
+ | Let (GenCoreBinding val_bdr val_occ tyvar uvar)
+ (GenCoreExpr val_bdr val_occ tyvar uvar)
+ -- both recursive and non-.
+ -- The "GenCoreBinding" records that information
\end{code}
-@build@ as a function is a *PAIN*. See Andy's thesis for
-futher details. This is equivalent to:
-@
- build unitype (/\ tyvar \ c n -> expr)
-@
+For cost centre scc expressions we introduce a new core construct
+@SCC@ so transforming passes have to deal with it explicitly. The
+alternative of using a new PrimativeOp may result in a bad
+transformations of which we are unaware.
\begin{code}
---ANDY:
--- | CoBuild UniType TyVar binder binder (CoreExpr binder bindee)
+ | SCC CostCentre -- label of scc
+ (GenCoreExpr val_bdr val_occ tyvar uvar) -- scc expression
\end{code}
-@CoZfExpr@ exist in the core language, along with their qualifiers. After
-succesive optimisations to the sequential bindings, we desugar the
-@CoZfExpr@ into a subset of the core language without them - ``podization''.
-\begin{code}
-#ifdef DPH
- | CoZfExpr (CoreExpr binder bindee)
- (CoreParQuals binder bindee)
-#endif {- Data Parallel Haskell -}
-\end{code}
+Coercions arise from uses of the constructor of a @newtype@
+declaration, either in construction (resulting in a @CoreceIn@) or
+pattern matching (resulting in a @CoerceOut@).
-@CoParCon@ is the parallel equivalent to the sequential @CoCon@ expression.
-They are introduced into the core syntax by a pass of the compiler that
-removes the parallel ZF expressions, and {\em vectorises} ordinary sequential
-functions.
\begin{code}
-#ifdef DPH
- | CoParCon Id Int [UniType] [CoreExpr binder bindee] --ToDo:DPH: CoreAtom
-#endif {- Data Parallel Haskell -}
+ | Coerce Coercion
+ (GenType tyvar uvar) -- Type of the whole expression
+ (GenCoreExpr val_bdr val_occ tyvar uvar)
\end{code}
-@CoParCommunicate@ constructs are introduced by the desugaring of parallel
-ZF expressions.
\begin{code}
-#ifdef DPH
- | CoParComm
- Int
- (CoreExpr binder bindee)
- (CoreParCommunicate binder bindee)
-#endif {- Data Parallel Haskell -}
+data Coercion = CoerceIn Id -- Apply this constructor
+ | CoerceOut Id -- Strip this constructor
\end{code}
-@CoParZipWith@ constructs are introduced whenever podization fails during the
-desuagring of ZF expressions. These constructs represent zipping the function
-represented by the first @CoreExpr@ with the list of @CoreExpr@'s (hopefully
-we wont see this that often in the resultant program :-).
-\begin{code}
-#ifdef DPH
- | CoParZipWith
- Int
- (CoreExpr binder bindee)
- [CoreExpr binder bindee]
-#endif {- Data Parallel Haskell -}
-\end{code}
+%************************************************************************
+%* *
+\subsection{Core-constructing functions with checking}
+%* *
+%************************************************************************
+
+When making @Lets@, we may want to take evasive action if the thing
+being bound has unboxed type. We have different variants ...
+
+@mkCoLet(s|rec)Any@ let-binds any binding, regardless of type
+@mkCoLet(s|rec)NoUnboxed@ prohibits unboxed bindings
+@mkCoLet(s)UnboxedToCase@ converts an unboxed binding to a case
+ (unboxed bindings in a letrec are still prohibited)
-For cost centre scc expressions we introduce a new core construct
-@CoSCC@ so transforming passes have to deal with it explicitly. The
-alternative of using a new PrimativeOp may result in a bad
-transformations of which we are unaware.
\begin{code}
- | CoSCC CostCentre -- label of scc
- (CoreExpr binder bindee) -- scc expression
+mkCoLetAny :: GenCoreBinding Id Id tyvar uvar
+ -> GenCoreExpr Id Id tyvar uvar
+ -> GenCoreExpr Id Id tyvar uvar
+mkCoLetsAny :: [GenCoreBinding Id Id tyvar uvar] ->
+ GenCoreExpr Id Id tyvar uvar ->
+ GenCoreExpr Id Id tyvar uvar
--- end of CoreExpr
-\end{code}
+mkCoLetrecAny :: [(val_bdr, GenCoreExpr val_bdr val_occ tyvar uvar)]
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
+mkCoLetrecAny [] body = body
+mkCoLetrecAny binds body = Let (Rec binds) body
-%************************************************************************
-%* *
-\subsection[CoreParQualifiers]{Parallel qualifiers in @CoreExpr@}
-%* *
-%************************************************************************
+mkCoLetsAny [] expr = expr
+mkCoLetsAny binds expr = foldr mkCoLetAny expr binds
+
+mkCoLetAny bind@(Rec binds) body = mkCoLetrecAny binds body
+mkCoLetAny bind@(NonRec binder rhs) body = Let bind body
+\end{code}
\begin{code}
-#ifdef DPH
-data CoreParQuals binder bindee
- = CoAndQuals (CoreParQuals binder bindee)
- (CoreParQuals binder bindee)
- | CoParFilter (CoreExpr binder bindee)
- | CoDrawnGen [binder]
- (binder)
- (CoreExpr binder bindee)
- | CoIndexGen [CoreExpr binder bindee]
- (binder)
- (CoreExpr binder bindee)
-#endif {- Data Parallel Haskell -}
+mkCoLetNoUnboxed bind@(Rec binds) body
+ = mkCoLetrecNoUnboxed binds body
+
+mkCoLetNoUnboxed bind@(NonRec binder rhs) body
+ = --ASSERT (not (isUnboxedType (idType binder)))
+ case body of
+ Var binder2 | binder == binder2
+ -> rhs -- hey, I have the rhs
+ other
+ -> Let bind body
+
+mkCoLetsNoUnboxed [] expr = expr
+mkCoLetsNoUnboxed binds expr = foldr mkCoLetNoUnboxed expr binds
+
+mkCoLetrecNoUnboxed [] body = body
+mkCoLetrecNoUnboxed binds body
+ = ASSERT (all is_boxed_bind binds)
+ Let (Rec binds) body
+ where
+ is_boxed_bind (binder, rhs)
+ = (not . isUnboxedType . idType) binder
\end{code}
-%************************************************************************
-%* *
-\subsection[ParCommunicate]{Parallel Communication primitives}
-%* *
-%************************************************************************
\begin{code}
-#ifdef DPH
-data CoreParCommunicate binder bindee
- = CoParSend [CoreExpr binder bindee] -- fns of form Integer -> Integer
- | CoParFetch [CoreExpr binder bindee] -- to determine where moved
- | CoToPodized
- | CoFromPodized
-#endif {- Data Parallel Haskell -}
+mkCoLetUnboxedToCase bind@(Rec binds) body
+ = mkCoLetrecNoUnboxed binds body
+
+mkCoLetUnboxedToCase bind@(NonRec binder rhs) body
+ = case body of
+ Var binder2 | binder == binder2
+ -> rhs -- hey, I have the rhs
+ other
+ -> if (not (isUnboxedType (idType binder))) then
+ Let bind body -- boxed...
+ else
+ Case rhs -- unboxed...
+ (PrimAlts []
+ (BindDefault binder body))
+
+mkCoLetsUnboxedToCase [] expr = expr
+mkCoLetsUnboxedToCase binds expr = foldr mkCoLetUnboxedToCase expr binds
\end{code}
%************************************************************************
%* *
-\subsection[CoreCaseAlternatives]{Case alternatives in @CoreExpr@}
+\subsection{Case alternatives in @GenCoreExpr@}
%* *
%************************************************************************
\end{verbatim}
becomes
\begin{verbatim}
-CoCase e [ CoBindDefaultAlt x -> b ]
+Case e [ BindDefaultAlt x -> b ]
\end{verbatim}
\begin{code}
-data CoreCaseAlternatives binder bindee
-
- = CoAlgAlts [(Id, -- alts: data constructor,
- [binder], -- constructor's parameters,
- CoreExpr binder bindee)] -- rhs.
- (CoreCaseDefault binder bindee)
-
- | CoPrimAlts [(BasicLit, -- alts: unboxed literal,
- CoreExpr binder bindee)] -- rhs.
- (CoreCaseDefault binder bindee)
-#ifdef DPH
- | CoParAlgAlts
- TyCon
- Int
- [binder]
- [(Id,
- CoreExpr binder bindee)]
- (CoreCaseDefault binder bindee)
-
- | CoParPrimAlts
- TyCon
- Int
- [(BasicLit,
- CoreExpr binder bindee)]
- (CoreCaseDefault binder bindee)
-#endif {- Data Parallel Haskell -}
+data GenCoreCaseAlts val_bdr val_occ tyvar uvar
+ = AlgAlts [(Id, -- alts: data constructor,
+ [val_bdr], -- constructor's parameters,
+ GenCoreExpr val_bdr val_occ tyvar uvar)] -- rhs.
+ (GenCoreCaseDefault val_bdr val_occ tyvar uvar)
+
+ | PrimAlts [(Literal, -- alts: unboxed literal,
+ GenCoreExpr val_bdr val_occ tyvar uvar)] -- rhs.
+ (GenCoreCaseDefault val_bdr val_occ tyvar uvar)
-- obvious things: if there are no alts in the list, then the default
--- can't be CoNoDefault.
+-- can't be NoDefault.
-data CoreCaseDefault binder bindee
- = CoNoDefault -- small con family: all
+data GenCoreCaseDefault val_bdr val_occ tyvar uvar
+ = NoDefault -- small con family: all
-- constructor accounted for
- | CoBindDefault binder -- form: var -> expr;
- (CoreExpr binder bindee) -- "binder" may or may not
+ | BindDefault val_bdr -- form: var -> expr;
+ (GenCoreExpr val_bdr val_occ tyvar uvar) -- "val_bdr" may or may not
-- be used in RHS.
\end{code}
+\begin{code}
+rhssOfAlts (AlgAlts alts deflt) = rhssOfDeflt deflt ++ [rhs | (_,_,rhs) <- alts]
+rhssOfAlts (PrimAlts alts deflt) = rhssOfDeflt deflt ++ [rhs | (_,rhs) <- alts]
+
+rhssOfDeflt NoDefault = []
+rhssOfDeflt (BindDefault _ rhs) = [rhs]
+\end{code}
+
%************************************************************************
%* *
-\subsection[CoreSyn-arguments]{Core ``argument'' wrapper type}
+\subsection{Core binders}
%* *
%************************************************************************
\begin{code}
-data CoreArg bindee
- = TypeArg UniType
- | ValArg (CoreAtom bindee)
+data GenCoreBinder val_bdr tyvar uvar
+ = ValBinder val_bdr
+ | TyBinder tyvar
+ | UsageBinder uvar
-instance Outputable bindee => Outputable (CoreArg bindee) where
- ppr sty (ValArg atom) = ppr sty atom
- ppr sty (TypeArg ty) = ppr sty ty
+isValBinder (ValBinder _) = True
+isValBinder _ = False
+
+notValBinder = not . isValBinder
\end{code}
+Clump Lams together if possible.
+
\begin{code}
-mkCoTyApp expr ty = CoTyApp expr ty
+mkValLam :: [val_bdr]
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
+mkTyLam :: [tyvar]
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
+mkUseLam :: [uvar]
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
-{- OLD: unboxed tyapps now allowed!
-mkCoTyApp expr ty
-#ifdef DEBUG
- | isPrimType ty && not (error_app expr)
- = pprPanic "mkCoTyApp:" (ppr PprDebug ty)
-#endif
- | otherwise = ty_app
- where
- ty_app = CoTyApp expr ty
+mkValLam binders body = foldr (Lam . ValBinder) body binders
+mkTyLam binders body = foldr (Lam . TyBinder) body binders
+mkUseLam binders body = foldr (Lam . UsageBinder) body binders
- error_app (CoVar id) {-| isBottomingId id-} = True -- debugging
- -- OOPS! can't do this because it forces
- -- the bindee type to be Id (ToDo: what?) WDP 95/02
- error_app _ = False
--}
-\end{code}
+mkLam :: [tyvar] -> [val_bdr] -- ToDo: could add a [uvar] arg...
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
-\begin{code}
-applyToArgs :: CoreExpr binder bindee
- -> [CoreArg bindee]
- -> CoreExpr binder bindee
-
-applyToArgs fun [] = fun
-applyToArgs fun (ValArg val : args) = applyToArgs (CoApp fun val) args
-applyToArgs fun (TypeArg ty : args) = applyToArgs (mkCoTyApp fun ty) args
+mkLam tyvars valvars body
+ = mkTyLam tyvars (mkValLam valvars body)
\end{code}
-@decomposeArgs@ just pulls of the contiguous TypeArg-then-ValArg block
-on the front of the args. Pretty common.
+We often want to strip off leading lambdas before getting down to
+business. @collectBinders@ is your friend.
+
+We expect (by convention) usage-, type-, and value- lambdas in that
+order.
\begin{code}
-decomposeArgs :: [CoreArg bindee]
- -> ([UniType], [CoreAtom bindee], [CoreArg bindee])
+collectBinders ::
+ GenCoreExpr val_bdr val_occ tyvar uvar ->
+ ([uvar], [tyvar], [val_bdr], GenCoreExpr val_bdr val_occ tyvar uvar)
-decomposeArgs [] = ([],[],[])
+collectBinders expr
+ = (usages, tyvars, vals, body)
+ where
+ (usages, tyvars, body1) = collectUsageAndTyBinders expr
+ (vals, body) = collectValBinders body1
-decomposeArgs (TypeArg ty : args)
- = case (decomposeArgs args) of { (tys, vals, rest) ->
- (ty:tys, vals, rest) }
-decomposeArgs (ValArg val : args)
- = case (do_vals args) of { (vals, rest) ->
- ([], val:vals, rest) }
+collectUsageAndTyBinders expr
+ = usages expr []
where
- do_vals (ValArg val : args)
- = case (do_vals args) of { (vals, rest) ->
- (val:vals, rest) }
-
- do_vals args = ([], args)
-\end{code}
+ usages (Lam (UsageBinder u) body) uacc = usages body (u:uacc)
+ usages other uacc
+ = case (tyvars other []) of { (tacc, expr) ->
+ (reverse uacc, tacc, expr) }
-@collectArgs@ takes an application expression, returning the function
-and the arguments to which it is applied.
+ tyvars (Lam (TyBinder t) body) tacc = tyvars body (t:tacc)
+ tyvars other tacc
+ = ASSERT(not (usage_lambda other))
+ (reverse tacc, other)
-\begin{code}
-collectArgs :: CoreExpr binder bindee
- -> (CoreExpr binder bindee, [CoreArg bindee])
+ ---------------------------------------
+ usage_lambda (Lam (UsageBinder _) _) = True
+ usage_lambda _ = False
-collectArgs expr
- = collect expr []
+ tyvar_lambda (Lam (TyBinder _) _) = True
+ tyvar_lambda _ = False
+
+
+collectValBinders :: GenCoreExpr val_bdr val_occ tyvar uvar ->
+ ([val_bdr], GenCoreExpr val_bdr val_occ tyvar uvar)
+collectValBinders expr
+ = go [] expr
where
- collect (CoApp fun arg) args = collect fun (ValArg arg : args)
- collect (CoTyApp fun ty) args = collect fun (TypeArg ty : args)
- collect other_expr args = (other_expr, args)
+ go acc (Lam (ValBinder v) b) = go (v:acc) b
+ go acc body = (reverse acc, body)
+
\end{code}
%************************************************************************
%* *
-\subsection[CoreSyn-output]{Instance declarations for output}
+\subsection{Core arguments (atoms)}
%* *
%************************************************************************
-@pprCoreBinding@ and @pprCoreExpr@ let you give special printing
-function for ``major'' binders (those next to equal signs :-),
-``minor'' ones (lambda-bound, case-bound), and bindees. They would
-usually be called through some intermediary.
-
\begin{code}
-pprCoreBinding
- :: PprStyle
- -> (PprStyle -> bndr -> Pretty) -- to print "major" binders
- -> (PprStyle -> bndr -> Pretty) -- to print "minor" binders
- -> (PprStyle -> bdee -> Pretty) -- to print bindees
- -> CoreBinding bndr bdee
- -> Pretty
-
-pprCoreBinding sty pbdr1 pbdr2 pbdee (CoNonRec binder expr)
- = ppHang (ppCat [pbdr1 sty binder, ppEquals])
- 4 (pprCoreExpr sty pbdr1 pbdr2 pbdee expr)
-
-pprCoreBinding sty pbdr1 pbdr2 pbdee (CoRec binds)
- = ppAboves [ifPprDebug sty (ppStr "{- CoRec -}"),
- ppAboves (map ppr_bind binds),
- ifPprDebug sty (ppStr "{- end CoRec -}")]
- where
- ppr_bind (binder, expr)
- = ppHang (ppCat [pbdr1 sty binder, ppEquals])
- 4 (pprCoreExpr sty pbdr1 pbdr2 pbdee expr)
-\end{code}
+data GenCoreArg val_occ tyvar uvar
+ = LitArg Literal
+ | VarArg val_occ
+ | TyArg (GenType tyvar uvar)
+ | UsageArg (GenUsage uvar)
+\end{code}
+
+General and specific forms:
+\begin{code}
+mkGenApp :: GenCoreExpr val_bdr val_occ tyvar uvar
+ -> [GenCoreArg val_occ tyvar uvar]
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
+mkTyApp :: GenCoreExpr val_bdr val_occ tyvar uvar
+ -> [GenType tyvar uvar]
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
+mkUseApp :: GenCoreExpr val_bdr val_occ tyvar uvar
+ -> [GenUsage uvar]
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
+mkValApp :: GenCoreExpr val_bdr val_occ tyvar uvar
+ -> [GenCoreArg val_occ tyvar uvar] -- but we ASSERT they are LitArg or VarArg
+ -> GenCoreExpr val_bdr val_occ tyvar uvar
+
+mkGenApp f args = foldl App f args
+mkTyApp f args = foldl (\ e a -> App e (TyArg a)) f args
+mkUseApp f args = foldl (\ e a -> App e (UsageArg a)) f args
+mkValApp f args = foldl (\ e a -> App e (is_Lit_or_Var a)) f args
+
+#ifndef DEBUG
+is_Lit_or_Var a = a
+#else
+is_Lit_or_Var a
+ = if isValArg a then a else panic "CoreSyn.mkValApps:not LitArg or VarArg"
+#endif
-\begin{code}
-instance (Outputable bndr, Outputable bdee)
- => Outputable (CoreBinding bndr bdee) where
- ppr sty bind = pprCoreBinding sty ppr ppr ppr bind
+isValArg (LitArg _) = True -- often used for sanity-checking
+isValArg (VarArg _) = True
+isValArg _ = False
-instance (Outputable bndr, Outputable bdee)
- => Outputable (CoreExpr bndr bdee) where
- ppr sty expr = pprCoreExpr sty ppr ppr ppr expr
+notValArg = not . isValArg -- exists only because it's a common use of isValArg
-instance Outputable bdee => Outputable (CoreAtom bdee) where
- ppr sty atom = pprCoreAtom sty ppr atom
+numValArgs as = length [ a | a <- as, isValArg a ] -- again, convenience
\end{code}
\begin{code}
-pprCoreAtom
- :: PprStyle
- -> (PprStyle -> bdee -> Pretty) -- to print bindees
- -> CoreAtom bdee
- -> Pretty
-
-pprCoreAtom sty pbdee (CoLitAtom lit) = ppr sty lit
-pprCoreAtom sty pbdee (CoVarAtom v) = pbdee sty v
+mkApp fun = mk_thing (mkGenApp fun)
+mkCon con = mk_thing (Con con)
+mkPrim op = mk_thing (Prim op)
+
+mk_thing thing uses tys vals
+ = thing (map UsageArg uses ++ map TyArg tys ++ map is_Lit_or_Var vals)
\end{code}
+@collectArgs@ takes an application expression, returning the function
+and the arguments to which it is applied.
+
\begin{code}
-pprCoreExpr, pprParendCoreExpr
- :: PprStyle
- -> (PprStyle -> bndr -> Pretty) -- to print "major" binders
- -> (PprStyle -> bndr -> Pretty) -- to print "minor" binders
- -> (PprStyle -> bdee -> Pretty) -- to print bindees
- -> CoreExpr bndr bdee
- -> Pretty
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoVar name) = pbdee sty name
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoLit literal) = ppr sty literal
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoCon con [] []) = ppr sty con
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoCon con types args)
- = ppHang (ppBesides [ppr sty con, ppChar '!'])
- 4 (ppSep ( (map (pprParendUniType sty) types)
- ++ (map (pprCoreAtom sty pbdee) args)))
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoPrim prim tys args)
- = ppHang (ppBesides [ppr sty prim, ppChar '!'])
- 4 (ppSep ( (map (pprParendUniType sty) tys)
- ++ (map (pprCoreAtom sty pbdee) args) ))
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoLam binders expr)
- = ppHang (ppCat [ppStr "\\", ppInterleave ppSP (map (pbdr2 sty) binders), ppStr "->"])
- 4 (pprCoreExpr sty pbdr1 pbdr2 pbdee expr)
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoTyLam tyvar expr)
- = ppHang (ppCat [ppStr "/\\", interppSP sty (tyvar:tyvars),
- ppStr "->", pp_varss var_lists])
- 4 (pprCoreExpr sty pbdr1 pbdr2 pbdee expr_after)
- where
- (tyvars, var_lists, expr_after) = collect_tyvars expr
-
- collect_tyvars (CoTyLam tyv e) = ( tyv:tyvs, vs, e_after )
- where (tyvs, vs, e_after) = collect_tyvars e
- collect_tyvars e@(CoLam _ _) = ( [], vss, e_after )
- where (vss, e_after) = collect_vars e
- collect_tyvars other_e = ( [], [], other_e )
-
- collect_vars (CoLam vars e) = (vars:varss, e_after)
- where (varss, e_after) = collect_vars e
- collect_vars other_e = ( [], other_e )
-
- pp_varss [] = ppNil
- pp_varss (vars:varss)
- = ppCat [ppStr "\\", ppInterleave ppSP (map (pbdr2 sty) vars),
- ppStr "->", pp_varss varss]
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee expr@(CoApp fun_expr atom)
- = let
- (fun, args) = collect_args expr []
- in
- ppHang (pprParendCoreExpr sty pbdr1 pbdr2 pbdee fun)
- 4 (ppSep (map (pprCoreAtom sty pbdee) args))
- where
- collect_args (CoApp fun arg) args = collect_args fun (arg:args)
- collect_args fun args = (fun, args)
+collectArgs :: GenCoreExpr val_bdr val_occ tyvar uvar
+ -> (GenCoreExpr val_bdr val_occ tyvar uvar,
+ [GenUsage uvar],
+ [GenType tyvar uvar],
+ [GenCoreArg val_occ tyvar uvar]{-ValArgs-})
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoTyApp expr ty)
- = ppHang (ppBeside pp_note (pprParendCoreExpr sty pbdr1 pbdr2 pbdee expr))
- 4 (pprParendUniType sty ty)
+collectArgs expr
+ = valvars expr []
where
- pp_note = ifPprShowAll sty (ppStr "{-CoTyApp-} ")
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoCase expr alts)
- = ppSep [ppSep [ppStr "case", ppNest 4 (pprParendCoreExpr sty pbdr1 pbdr2 pbdee expr),
- ppStr "of {"],
- ppNest 2 (pprCoreCaseAlts sty pbdr1 pbdr2 pbdee alts),
- ppStr "}"]
-
--- special cases: let ... in let ...
--- ("disgusting" SLPJ)
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoLet bind@(CoNonRec binder rhs@(CoLet _ _)) body)
- = ppAboves [
- ppCat [ppStr "let {", pbdr1 sty binder, ppEquals],
- ppNest 2 (pprCoreExpr sty pbdr1 pbdr2 pbdee rhs),
- ppStr "} in",
- pprCoreExpr sty pbdr1 pbdr2 pbdee body ]
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoLet bind@(CoNonRec binder rhs) expr@(CoLet _ _))
- = ppAbove
- (ppHang (ppStr "let {")
- 2 (ppCat [ppHang (ppCat [pbdr1 sty binder, ppEquals])
- 4 (pprCoreExpr sty pbdr1 pbdr2 pbdee rhs),
- ppStr "} in"]))
- (pprCoreExpr sty pbdr1 pbdr2 pbdee expr)
-
--- general case (recursive case, too)
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoLet bind expr)
- = ppSep [ppHang (ppStr "let {") 2 (pprCoreBinding sty pbdr1 pbdr2 pbdee bind),
- ppHang (ppStr "} in ") 2 (pprCoreExpr sty pbdr1 pbdr2 pbdee expr)]
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoSCC cc expr)
- = ppSep [ ppCat [ppStr "_scc_", ppStr (showCostCentre sty True{-as string-} cc)],
- pprParendCoreExpr sty pbdr1 pbdr2 pbdee expr ]
-#ifdef DPH
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoZfExpr expr quals)
- = ppHang (ppCat [ppStr "<<" , pprCoreExpr sty pbdr1 pbdr2 pbdee expr , ppStr "|"])
- 4 (ppSep [pprParQuals sty pbdr1 pbdr2 pbdee quals, ppStr ">>"])
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoParCon con dim types args)
- = ppHang (ppBesides [ppr sty con, ppStr "!<<" , ppr sty dim , ppStr ">>"])
- 4 (ppSep ( (map (pprParendUniType sty) types)
- ++ (map (pprParendCoreExpr sty pbdr1 pbdr2 pbdee) args) ))
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoParComm dim expr comType)
- = ppSep [ppSep [ppStr "COMM",
- ppNest 2 (pprParendCoreExpr sty pbdr1 pbdr2 pbdee expr),ppStr "{"],
- ppNest 2 (ppr sty comType),
- ppStr "}"]
-
-pprCoreExpr sty pbdr1 pbdr2 pbdee (CoParZipWith dim expr exprs)
- = ppHang (ppBesides [ ppStr "CoParZipWith {" , ppr sty dim , ppStr "}",
- pprParendCoreExpr sty pbdr1 pbdr2 pbdee expr])
- 4 (ppr sty exprs)
-#endif {- Data Parallel Haskell -}
-\end{code}
+ valvars (App fun v) vacc | isValArg v = valvars fun (v:vacc)
+ valvars fun vacc
+ = case (tyvars fun []) of { (expr, uacc, tacc) ->
+ (expr, uacc, tacc, vacc) }
-\begin{code}
-pprParendCoreExpr sty pbdr1 pbdr2 pbdee e@(CoVar _) = pprCoreExpr sty pbdr1 pbdr2 pbdee e
-pprParendCoreExpr sty pbdr1 pbdr2 pbdee e@(CoLit _) = pprCoreExpr sty pbdr1 pbdr2 pbdee e
-pprParendCoreExpr sty pbdr1 pbdr2 pbdee other_e
- = ppBesides [ppLparen, pprCoreExpr sty pbdr1 pbdr2 pbdee other_e, ppRparen]
-\end{code}
+ tyvars (App fun (TyArg t)) tacc = tyvars fun (t:tacc)
+ tyvars fun tacc
+ = case (usages fun []) of { (expr, uacc) ->
+ (expr, uacc, tacc) }
-\begin{code}
-instance (Outputable bndr, Outputable bdee)
- => Outputable (CoreCaseAlternatives bndr bdee) where
- ppr sty alts = pprCoreCaseAlts sty ppr ppr ppr alts
+ usages (App fun (UsageArg u)) uacc = usages fun (u:uacc)
+ usages fun uacc
+ = (fun,uacc)
\end{code}
+
\begin{code}
-pprCoreCaseAlts
- :: PprStyle
- -> (PprStyle -> bndr -> Pretty) -- to print "major" binders
- -> (PprStyle -> bndr -> Pretty) -- to print "minor" binders
- -> (PprStyle -> bdee -> Pretty) -- to print bindees
- -> CoreCaseAlternatives bndr bdee
- -> Pretty
-
-pprCoreCaseAlts sty pbdr1 pbdr2 pbdee (CoAlgAlts alts deflt)
- = ppAboves [ ppAboves (map ppr_alt alts),
- pprCoreCaseDefault sty pbdr1 pbdr2 pbdee deflt ]
- where
- ppr_alt (con, params, expr)
- = ppHang (ppCat [ppr_con con,
- ppInterleave ppSP (map (pbdr2 sty) params),
- ppStr "->"])
- 4 (pprCoreExpr sty pbdr1 pbdr2 pbdee expr)
- where
- ppr_con con
- = if isOpLexeme con
- then ppBesides [ppLparen, ppr sty con, ppRparen]
- else ppr sty con
-
-pprCoreCaseAlts sty pbdr1 pbdr2 pbdee (CoPrimAlts alts deflt)
- = ppAboves [ ppAboves (map ppr_alt alts),
- pprCoreCaseDefault sty pbdr1 pbdr2 pbdee deflt ]
- where
- ppr_alt (lit, expr)
- = ppHang (ppCat [ppr sty lit, ppStr "->"])
- 4 (pprCoreExpr sty pbdr1 pbdr2 pbdee expr)
-
-#ifdef DPH
--- ToDo: niceties of printing
--- using special binder/bindee printing funs, rather than just "ppr"
-
-pprCoreCaseAlts sty pbdr1 pbdr2 pbdee (CoParAlgAlts tycon dim params alts deflt)
- = ppAboves [ ifPprShowAll sty (ppr sty tycon),
- ppBeside (ppCat (map (ppr sty) params))
- (ppCat [ppStr "|" , ppr sty dim , ppStr "|"]),
- ppAboves (map (ppr_alt sty) alts),
- ppr sty deflt ]
- where
- ppr_alt sty (con, expr)
- = ppHang (ppCat [ppStr "\\/", ppr_con sty con, ppStr "->"])
- 4 (ppr sty expr)
- where
- ppr_con sty con
- = if isOpLexeme con
- then ppBesides [ppLparen, ppr sty con, ppRparen]
- else ppr sty con
-
-pprCoreCaseAlts sty pbdr1 pbdr2 pbdee (CoParPrimAlts tycon dim alts deflt)
- = ppAboves [ ifPprShowAll sty (ppr sty tycon),
- ppCat [ppStr "|" , ppr sty dim , ppStr "|"],
- ppAboves (map (ppr_alt sty) alts),
- ppr sty deflt ]
- where
- ppr_alt sty (lit, expr)
- = ppHang (ppCat [ppStr "\\/", ppr sty lit, ppStr "->"]) 4 (ppr sty expr)
+initialTyArgs :: [GenCoreArg val_occ tyvar uvar]
+ -> ([GenType tyvar uvar], [GenCoreArg val_occ tyvar uvar])
+initialTyArgs (TyArg ty : args) = (ty:tys, args')
+ where
+ (tys, args') = initialTyArgs args
+initialTyArgs other = ([],other)
-#endif /* Data Parallel Haskell */
+initialValArgs :: [GenCoreArg val_occ tyvar uvar]
+ -> ([GenCoreArg val_occ tyvar uvar], [GenCoreArg val_occ tyvar uvar])
+initialValArgs args = span isValArg args
\end{code}
-\begin{code}
-instance (Outputable bndr, Outputable bdee)
- => Outputable (CoreCaseDefault bndr bdee) where
- ppr sty deflt = pprCoreCaseDefault sty ppr ppr ppr deflt
-\end{code}
+
+%************************************************************************
+%* *
+\subsection{The main @Core*@ instantiation of the @GenCore*@ types}
+%* *
+%************************************************************************
\begin{code}
-pprCoreCaseDefault
- :: PprStyle
- -> (PprStyle -> bndr -> Pretty) -- to print "major" binders
- -> (PprStyle -> bndr -> Pretty) -- to print "minor" binders
- -> (PprStyle -> bdee -> Pretty) -- to print bindees
- -> CoreCaseDefault bndr bdee
- -> Pretty
-
-pprCoreCaseDefault sty pbdr1 pbdr2 pbdee CoNoDefault = ppNil
-
-pprCoreCaseDefault sty pbdr1 pbdr2 pbdee (CoBindDefault binder expr)
- = ppHang (ppCat [pbdr2 sty binder, ppStr "->"])
- 4 (pprCoreExpr sty pbdr1 pbdr2 pbdee expr)
+type CoreBinding = GenCoreBinding Id Id TyVar UVar
+type CoreExpr = GenCoreExpr Id Id TyVar UVar
+type CoreBinder = GenCoreBinder Id TyVar UVar
+type CoreArg = GenCoreArg Id TyVar UVar
+
+type CoreCaseAlts = GenCoreCaseAlts Id Id TyVar UVar
+type CoreCaseDefault = GenCoreCaseDefault Id Id TyVar UVar
\end{code}
+%************************************************************************
+%* *
+\subsection{The @TaggedCore*@ instantiation of the @GenCore*@ types}
+%* *
+%************************************************************************
+
+Binders are ``tagged'' with a \tr{t}:
\begin{code}
-#ifdef DPH
-instance (Outputable bndr, Outputable bdee)
- => Outputable (CoreParQuals bndr bdee) where
- ppr sty qual = pprParQuals sty ppr ppr ppr qual
-
-pprParQuals sty pbdr1 pbdr2 pbdee (CoAndQuals x y)
- = ppAboves [(ppBesides [pprParQuals sty pbdr1 pbdr2 pbdee x , ppComma]) , pprParQuals sty pbdr1 pbdr2 pbdee y]
-
-pprParQuals sty pbdr1 pbdr2 pbdee (CoDrawnGen pats pat expr)
- = ppCat [ppStr "(|",
- ppInterleave ppComma (map (ppr sty) pats),
- ppSemi, ppr sty pat,ppStr "|)",
- ppStr "<<-", pprCoreExpr sty pbdr1 pbdr2 pbdee expr]
-
-pprParQuals sty pbdr1 pbdr2 pbdee (CoIndexGen exprs pat expr)
- = ppCat [ppStr "(|",
- ppInterleave ppComma (map (pprCoreExpr sty pbdr1 pbdr2 pbdee) exprs),
- ppSemi, ppr sty pat,ppStr "|)",
- ppStr "<<=", pprCoreExpr sty pbdr1 pbdr2 pbdee expr]
-
-pprParQuals sty pbdr1 pbdr2 pbdee (CoParFilter expr)
- = pprParendCoreExpr sty pbdr1 pbdr2 pbdee expr
-#endif {- Data Parallel Haskell -}
+type Tagged t = (Id, t)
+
+type TaggedCoreBinding t = GenCoreBinding (Tagged t) Id TyVar UVar
+type TaggedCoreExpr t = GenCoreExpr (Tagged t) Id TyVar UVar
+type TaggedCoreBinder t = GenCoreBinder (Tagged t) TyVar UVar
+type TaggedCoreArg t = GenCoreArg Id TyVar UVar
+
+type TaggedCoreCaseAlts t = GenCoreCaseAlts (Tagged t) Id TyVar UVar
+type TaggedCoreCaseDefault t = GenCoreCaseDefault (Tagged t) Id TyVar UVar
\end{code}
+%************************************************************************
+%* *
+\subsection{The @SimplifiableCore*@ instantiation of the @GenCore*@ types}
+%* *
+%************************************************************************
+
+Binders are tagged with @BinderInfo@:
\begin{code}
-#ifdef DPH
-instance (Outputable bndr, Outputable bdee)
- => Outputable (CoreParCommunicate bndr bdee) where
- ppr sty c = pprCoreParCommunicate sty ppr ppr ppr c
-
-pprCoreParCommunicate sty pbdr1 pbdr2 pbdee (CoParSend fns)
- = ppHang
- (ppStr "SEND")
- 4
- (ppAboves (zipWith ppSendFns fns ([1..]::[Int])))
- where
- ppSendFns expr dim
- = ppCat [ppStr "Dim" , ppr sty dim , ppStr "=" ,
- pprParendCoreExpr sty pbdr1 pbdr2 pbdee expr ]
-
-pprCoreParCommunicate sty pbdr1 pbdr2 pbdee (CoParFetch fns)
- = ppHang
- (ppStr "FETCH")
- 4
- (ppAboves (zipWith ppSendFns fns ([1..]::[Int])))
- where
- ppSendFns expr dim
- = ppCat [ppStr "Dim" , ppr sty dim , ppStr "=" ,
- pprParendCoreExpr sty pbdr1 pbdr2 pbdee expr ]
+type Simplifiable = (Id, BinderInfo)
-pprCoreParCommunicate sty pbdr1 pbdr2 pbdee (CoToPodized)
- = ppStr "ConvertToPodized"
+type SimplifiableCoreBinding = GenCoreBinding Simplifiable Id TyVar UVar
+type SimplifiableCoreExpr = GenCoreExpr Simplifiable Id TyVar UVar
+type SimplifiableCoreBinder = GenCoreBinder Simplifiable TyVar UVar
+type SimplifiableCoreArg = GenCoreArg Id TyVar UVar
-pprCoreParCommunicate sty pbdr1 pbdr2 pbdee (CoFromPodized)
- = ppStr "ConvertFromPodized"
-#endif {- Data Parallel Haskell -}
+type SimplifiableCoreCaseAlts = GenCoreCaseAlts Simplifiable Id TyVar UVar
+type SimplifiableCoreCaseDefault = GenCoreCaseDefault Simplifiable Id TyVar UVar
\end{code}
projects / ghc-hetmet.git / blobdiff