-module VectType ( vectTyCon, vectType, vectTypeEnv,
- PAInstance, buildPADict )
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
+module VectType ( vectTyCon, vectAndLiftType, vectType, vectTypeEnv,
+ mkRepr, arrShapeTys, arrShapeVars, arrSelector,
+ PAInstance, buildPADict,
+ fromVect )
where
-#include "HsVersions.h"
-
import VectMonad
import VectUtils
import VectCore
import OccName
import MkId
import BasicTypes ( StrictnessMark(..), OverlapFlag(..), boolToRecFlag )
-import Var ( Var )
+import Var ( Var, TyVar )
import Id ( mkWildId )
import Name ( Name, getOccName )
import NameEnv
-import TysWiredIn ( unitTy, unitTyCon, intTy, intDataCon, unitDataConId )
+import TysWiredIn
import TysPrim ( intPrimTy )
import Unique
import Digraph ( SCC(..), stronglyConnComp )
import Outputable
+import FastString
import Control.Monad ( liftM, liftM2, zipWithM, zipWithM_, mapAndUnzipM )
import Data.List ( inits, tails, zipWith4, zipWith5 )
-- FIXME: just for now
Nothing -> pprTrace "ccTyCon:" (ppr tc) $ return tc
+vectAndLiftType :: Type -> VM (Type, Type)
+vectAndLiftType ty | Just ty' <- coreView ty = vectAndLiftType ty'
+vectAndLiftType ty
+ = do
+ mdicts <- mapM paDictArgType tyvars
+ let dicts = [dict | Just dict <- mdicts]
+ vmono_ty <- vectType mono_ty
+ lmono_ty <- mkPArrayType vmono_ty
+ return (abstractType tyvars dicts vmono_ty,
+ abstractType tyvars dicts lmono_ty)
+ where
+ (tyvars, mono_ty) = splitForAllTys ty
+
+
vectType :: Type -> VM Type
vectType ty | Just ty' <- coreView ty = vectType ty'
vectType (TyVarTy tv) = return $ TyVarTy tv
vectType (AppTy ty1 ty2) = liftM2 AppTy (vectType ty1) (vectType ty2)
vectType (TyConApp tc tys) = liftM2 TyConApp (vectTyCon tc) (mapM vectType tys)
vectType (FunTy ty1 ty2) = liftM2 TyConApp (builtin closureTyCon)
- (mapM vectType [ty1,ty2])
+ (mapM vectAndBoxType [ty1,ty2])
vectType ty@(ForAllTy _ _)
= do
mdicts <- mapM paDictArgType tyvars
mono_ty' <- vectType mono_ty
- return $ tyvars `mkForAllTys` ([dict | Just dict <- mdicts] `mkFunTys` mono_ty')
+ return $ abstractType tyvars [dict | Just dict <- mdicts] mono_ty'
where
(tyvars, mono_ty) = splitForAllTys ty
vectType ty = pprPanic "vectType:" (ppr ty)
+vectAndBoxType :: Type -> VM Type
+vectAndBoxType ty = vectType ty >>= boxType
+
+abstractType :: [TyVar] -> [Type] -> Type -> Type
+abstractType tyvars dicts = mkForAllTys tyvars . mkFunTys dicts
+
+-- ----------------------------------------------------------------------------
+-- Boxing
+
+boxType :: Type -> VM Type
+boxType ty
+ | Just (tycon, []) <- splitTyConApp_maybe ty
+ , isUnLiftedTyCon tycon
+ = do
+ r <- lookupBoxedTyCon tycon
+ case r of
+ Just tycon' -> return $ mkTyConApp tycon' []
+ Nothing -> return ty
+boxType ty = return ty
+
-- ----------------------------------------------------------------------------
-- Type definitions
, void_bottom :: CoreExpr
}
+ | EnumRepr {
+ enum_tycon :: TyCon
+ , enum_data_con :: DataCon
+ , enum_arr_tycon :: TyCon
+ , enum_arr_data_con :: DataCon
+ }
+
voidRepr :: VM Repr
voidRepr
= do
, void_bottom = Var var
}
+enumRepr :: VM Repr
+enumRepr
+ = do
+ tycon <- builtin enumerationTyCon
+ let [data_con] = tyConDataCons tycon
+ (arr_tycon, _) <- parrayReprTyCon (mkTyConApp tycon [])
+ let [arr_data_con] = tyConDataCons arr_tycon
+
+ return $ EnumRepr {
+ enum_tycon = tycon
+ , enum_data_con = data_con
+ , enum_arr_tycon = arr_tycon
+ , enum_arr_data_con = arr_data_con
+ }
+
unboxedProductRepr :: [Type] -> VM Repr
unboxedProductRepr [] = voidRepr
unboxedProductRepr [ty] = return $ IdRepr ty
tycon <- builtin (prodTyCon arity)
let [data_con] = tyConDataCons tycon
- (arr_tycon, _) <- parrayReprTyCon $ mkTyConApp tycon tys
+ tys' <- mapM boxType tys
+ (arr_tycon, _) <- parrayReprTyCon $ mkTyConApp tycon tys'
let [arr_data_con] = tyConDataCons arr_tycon
return $ ProdRepr {
= mkTyConApp tycon (map reprType reprs)
reprType (IdRepr ty) = ty
reprType (VoidRepr { void_tycon = tycon }) = mkTyConApp tycon []
+reprType (EnumRepr { enum_tycon = tycon }) = mkTyConApp tycon []
arrReprType :: Repr -> VM Type
arrReprType = mkPArrayType . reprType
arrShapeTys :: Repr -> VM [Type]
-arrShapeTys (SumRepr {})
- = do
- int_arr <- builtin parrayIntPrimTyCon
- return [intPrimTy, mkTyConApp int_arr [], mkTyConApp int_arr []]
+arrShapeTys (SumRepr {}) = sumShapeTys
arrShapeTys (ProdRepr {}) = return [intPrimTy]
arrShapeTys (IdRepr _) = return []
arrShapeTys (VoidRepr {}) = return [intPrimTy]
+arrShapeTys (EnumRepr {}) = sumShapeTys
+
+sumShapeTys :: VM [Type]
+sumShapeTys = do
+ int_arr <- builtin intPrimArrayTy
+ return [intPrimTy, int_arr, int_arr]
+
arrShapeVars :: Repr -> VM [Var]
-arrShapeVars repr = mapM (newLocalVar FSLIT("sh")) =<< arrShapeTys repr
+arrShapeVars repr = mapM (newLocalVar (fsLit "sh")) =<< arrShapeTys repr
replicateShape :: Repr -> CoreExpr -> CoreExpr -> VM [CoreExpr]
-replicateShape (ProdRepr {}) len _ = return [len]
-replicateShape (SumRepr {}) len tag
+replicateShape (ProdRepr {}) len _ = return [len]
+replicateShape (SumRepr {}) len tag = replicateSumShape len tag
+replicateShape (IdRepr _) _ _ = return []
+replicateShape (VoidRepr {}) len _ = return [len]
+replicateShape (EnumRepr {}) len tag = replicateSumShape len tag
+
+replicateSumShape :: CoreExpr -> CoreExpr -> VM [CoreExpr]
+replicateSumShape len tag
= do
rep <- builtin replicatePAIntPrimVar
up <- builtin upToPAIntPrimVar
return [len, Var rep `mkApps` [len, tag], Var up `App` len]
-replicateShape (IdRepr _) _ _ = return []
-replicateShape (VoidRepr {}) len _ = return [len]
+
+arrSelector :: Repr -> [CoreExpr] -> VM (CoreExpr, CoreExpr, CoreExpr)
+arrSelector (SumRepr {}) [len, sel, is] = return (len, sel, is)
+arrSelector (EnumRepr {}) [len, sel, is] = return (len, sel, is)
emptyArrRepr :: Repr -> VM [CoreExpr]
emptyArrRepr (SumRepr { sum_components = prods })
= liftM singleton $ emptyPA ty
emptyArrRepr (VoidRepr { void_tycon = tycon })
= liftM singleton $ emptyPA (mkTyConApp tycon [])
+emptyArrRepr (EnumRepr { enum_tycon = tycon })
+ = return []
arrReprTys :: Repr -> VM [Type]
arrReprTys (SumRepr { sum_components = reprs })
= liftM singleton $ mkPArrayType ty
arrReprTys (VoidRepr { void_tycon = tycon })
= liftM singleton $ mkPArrayType (mkTyConApp tycon [])
+arrReprTys (EnumRepr {})
+ = return []
arrReprTys' :: Repr -> VM [[Type]]
arrReprTys' (SumRepr { sum_components = reprs })
arrReprVars :: Repr -> VM [[Var]]
arrReprVars repr
- = mapM (mapM (newLocalVar FSLIT("rs"))) =<< arrReprTys' repr
+ = mapM (mapM (newLocalVar (fsLit "rs"))) =<< arrReprTys' repr
mkRepr :: TyCon -> VM Repr
mkRepr vect_tc
- = sumRepr =<< mapM unboxedProductRepr rep_tys
+ | [tys] <- rep_tys = boxedProductRepr tys
+ -- | all null rep_tys = enumRepr
+ | otherwise = sumRepr =<< mapM unboxedProductRepr rep_tys
where
rep_tys = map dataConRepArgTys $ tyConDataCons vect_tc
buildToPRepr :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
buildToPRepr repr vect_tc prepr_tc _
= do
- arg <- newLocalVar FSLIT("x") arg_ty
+ arg <- newLocalVar (fsLit "x") arg_ty
result <- to_repr repr (Var arg)
return . Lam arg
ty_args = map (Type . reprType) prods
+ to_repr (EnumRepr { enum_data_con = data_con }) expr
+ = return . Case expr (mkWildId (exprType expr)) res_ty
+ $ map mk_alt cons
+ where
+ mk_alt con = (DataAlt con, [], mkConApp data_con [mkDataConTag con])
+
to_repr prod expr
= do
(vars, body) <- to_unboxed prod
to_unboxed (ProdRepr { prod_components = tys
, prod_data_con = data_con })
= do
- vars <- mapM (newLocalVar FSLIT("r")) tys
+ vars <- mapM (newLocalVar (fsLit "r")) tys
return (vars, mkConApp data_con (map Type tys ++ map Var vars))
to_unboxed (IdRepr ty)
= do
- var <- newLocalVar FSLIT("y") ty
+ var <- newLocalVar (fsLit "y") ty
return ([var], Var var)
to_unboxed (VoidRepr { void_bottom = bottom })
buildFromPRepr repr vect_tc prepr_tc _
= do
arg_ty <- mkPReprType res_ty
- arg <- newLocalVar FSLIT("x") arg_ty
+ arg <- newLocalVar (fsLit "x") arg_ty
liftM (Lam arg)
. from_repr repr
, sum_tycon = tycon })
expr
= do
- vars <- mapM (newLocalVar FSLIT("x")) (map reprType prods)
+ vars <- mapM (newLocalVar (fsLit "x")) (map reprType prods)
bodies <- sequence . zipWith3 from_unboxed prods cons
$ map Var vars
return . Case expr (mkWildId (reprType repr)) res_ty
where
sum_alt data_con var body = (DataAlt data_con, [var], body)
+ from_repr repr@(EnumRepr { enum_data_con = data_con }) expr
+ = do
+ var <- newLocalVar (fsLit "n") intPrimTy
+
+ let res = Case (Var var) (mkWildId intPrimTy) res_ty
+ $ (DEFAULT, [], error_expr)
+ : zipWith mk_alt (tyConDataCons vect_tc) cons
+
+ return $ Case expr (mkWildId (reprType repr)) res_ty
+ [(DataAlt data_con, [var], res)]
+ where
+ mk_alt data_con con = (LitAlt (mkDataConTagLit data_con), [], con)
+
+ error_expr = mkRuntimeErrorApp rUNTIME_ERROR_ID res_ty
+ . showSDoc
+ $ sep [text "Invalid NDP representation of", ppr vect_tc]
+
from_repr repr expr = from_unboxed repr con expr
from_unboxed prod@(ProdRepr { prod_components = tys
con
expr
= do
- vars <- mapM (newLocalVar FSLIT("y")) tys
+ vars <- mapM (newLocalVar (fsLit "y")) tys
return $ Case expr (mkWildId (reprType prod)) res_ty
[(DataAlt data_con, vars, con `mkVarApps` vars)]
buildToArrPRepr repr vect_tc prepr_tc arr_tc
= do
arg_ty <- mkPArrayType el_ty
- arg <- newLocalVar FSLIT("xs") arg_ty
+ arg <- newLocalVar (fsLit "xs") arg_ty
res_ty <- mkPArrayType (reprType repr)
. mkConApp data_con
$ map Type tys ++ map Var (len_var : repr_vars)
+ to_repr shape_vars
+ _
+ (EnumRepr { enum_arr_tycon = tycon
+ , enum_arr_data_con = data_con })
+ = return . wrapFamInstBody tycon []
+ . mkConApp data_con
+ $ map Var shape_vars
+
to_prod repr_vars@(r : _)
- (ProdRepr { prod_components = tys
+ (ProdRepr { prod_components = tys@(ty : _)
, prod_arr_tycon = tycon
, prod_arr_data_con = data_con })
= do
- len <- lengthPA (Var r)
+ len <- lengthPA ty (Var r)
return . wrapFamInstBody tycon tys
. mkConApp data_con
$ map Type tys ++ len : map Var repr_vars
buildFromArrPRepr repr vect_tc prepr_tc arr_tc
= do
arg_ty <- mkPArrayType =<< mkPReprType el_ty
- arg <- newLocalVar FSLIT("xs") arg_ty
+ arg <- newLocalVar (fsLit "xs") arg_ty
res_ty <- mkPArrayType el_ty
res_ty
body
= do
- vars <- mapM (newLocalVar FSLIT("xs")) =<< mapM arrReprType prods
+ vars <- mapM (newLocalVar (fsLit "xs")) =<< mapM arrReprType prods
result <- go prods repr_vars vars body
let scrut = unwrapFamInstScrut tycon ty_args expr
go [] [] [] body = return body
go (prod : prods) (repr_vars : rss) (var : vars) body
= do
- shape_vars <- mapM (newLocalVar FSLIT("s")) =<< arrShapeTys prod
+ shape_vars <- mapM (newLocalVar (fsLit "s")) =<< arrShapeTys prod
from_prod prod (Var var) shape_vars repr_vars res_ty
=<< go prods rss vars body
return $ Case scrut (mkWildId scrut_ty) res_ty
[(DataAlt data_con, shape_vars ++ repr_vars, body)]
+ from_prod (EnumRepr { enum_arr_tycon = tycon
+ , enum_arr_data_con = data_con })
+ expr
+ shape_vars
+ _
+ res_ty
+ body
+ = let scrut = unwrapFamInstScrut tycon [] expr
+ scrut_ty = mkTyConApp tycon []
+ in
+ return $ Case scrut (mkWildId scrut_ty) res_ty
+ [(DataAlt data_con, shape_vars, body)]
+
from_prod (IdRepr ty)
expr
shape_vars
dfun <- prDFunOfTyCon tycon
return $ dfun `mkTyApps` map reprType prods `mkApps` prs
+buildPRDictRepr (EnumRepr { enum_tycon = tycon })
+ = prDFunOfTyCon tycon
+
buildPRDict :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
buildPRDict repr vect_tc prepr_tc _
= do
lift_data_con tys pre_reprs post_reprs tag
= do
len <- builtin liftingContext
- args <- mapM (newLocalVar FSLIT("xs"))
+ args <- mapM (newLocalVar (fsLit "xs"))
=<< mapM mkPArrayType tys
shape <- replicateShape repr (Var len) tag
var <- newLocalVar name (exprType body)
return (var, mkInlineMe body)
-paMethods = [(FSLIT("toPRepr"), buildToPRepr),
- (FSLIT("fromPRepr"), buildFromPRepr),
- (FSLIT("toArrPRepr"), buildToArrPRepr),
- (FSLIT("fromArrPRepr"), buildFromArrPRepr),
- (FSLIT("dictPRepr"), buildPRDict)]
+paMethods = [(fsLit "toPRepr", buildToPRepr),
+ (fsLit "fromPRepr", buildFromPRepr),
+ (fsLit "toArrPRepr", buildToArrPRepr),
+ (fsLit "fromArrPRepr", buildFromArrPRepr),
+ (fsLit "dictPRepr", buildPRDict)]
-- | Split the given tycons into two sets depending on whether they have to be
-- converted (first list) or not (second list). The first argument contains
tyConsOfTypes :: [Type] -> UniqSet TyCon
tyConsOfTypes = unionManyUniqSets . map tyConsOfType
+
+-- ----------------------------------------------------------------------------
+-- Conversions
+
+fromVect :: Type -> CoreExpr -> VM CoreExpr
+fromVect ty expr | Just ty' <- coreView ty = fromVect ty' expr
+fromVect (FunTy arg_ty res_ty) expr
+ = do
+ arg <- newLocalVar (fsLit "x") arg_ty
+ varg <- toVect arg_ty (Var arg)
+ varg_ty <- vectType arg_ty
+ vres_ty <- vectType res_ty
+ apply <- builtin applyClosureVar
+ body <- fromVect res_ty
+ $ Var apply `mkTyApps` [varg_ty, vres_ty] `mkApps` [expr, varg]
+ return $ Lam arg body
+fromVect ty expr
+ = identityConv ty >> return expr
+
+toVect :: Type -> CoreExpr -> VM CoreExpr
+toVect ty expr = identityConv ty >> return expr
+
+identityConv :: Type -> VM ()
+identityConv ty | Just ty' <- coreView ty = identityConv ty'
+identityConv (TyConApp tycon tys)
+ = do
+ mapM_ identityConv tys
+ identityConvTyCon tycon
+identityConv ty = noV
+
+identityConvTyCon :: TyCon -> VM ()
+identityConvTyCon tc
+ | isBoxedTupleTyCon tc = return ()
+ | isUnLiftedTyCon tc = return ()
+ | otherwise = do
+ tc' <- maybeV (lookupTyCon tc)
+ if tc == tc' then return () else noV
+
projects / ghc-hetmet.git / blobdiff