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|
module Vectorise.Utils.Base (
voidType,
newLocalVVar,
mkDataConTagLit,
mkDataConTag, dataConTagZ,
mkBuiltinTyConApp,
mkBuiltinTyConApps,
mkWrapType,
mkClosureTypes,
mkPReprType,
mkPArrayType, splitPrimTyCon,
mkPArray,
mkPDataType,
mkBuiltinCo,
mkVScrut,
preprSynTyCon,
pdataReprTyCon,
pdataReprDataCon,
prDFunOfTyCon
)
where
import Vectorise.Monad
import Vectorise.Vect
import Vectorise.Builtins
import CoreSyn
import CoreUtils
import Coercion
import Type
import TyCon
import DataCon
import MkId
import Literal
import Outputable
import FastString
import Control.Monad (liftM)
-- Simple Types ---------------------------------------------------------------
voidType :: VM Type
voidType = mkBuiltinTyConApp voidTyCon []
-- Name Generation ------------------------------------------------------------
newLocalVVar :: FastString -> Type -> VM VVar
newLocalVVar fs vty
= do
lty <- mkPDataType vty
vv <- newLocalVar fs vty
lv <- newLocalVar fs lty
return (vv,lv)
-- Constructors ---------------------------------------------------------------
mkDataConTagLit :: DataCon -> Literal
mkDataConTagLit = mkMachInt . toInteger . dataConTagZ
mkDataConTag :: DataCon -> CoreExpr
mkDataConTag = mkIntLitInt . dataConTagZ
dataConTagZ :: DataCon -> Int
dataConTagZ con = dataConTag con - fIRST_TAG
mkBuiltinTyConApp :: (Builtins -> TyCon) -> [Type] -> VM Type
mkBuiltinTyConApp get_tc tys
= do
tc <- builtin get_tc
return $ mkTyConApp tc tys
mkBuiltinTyConApps :: (Builtins -> TyCon) -> [Type] -> Type -> VM Type
mkBuiltinTyConApps get_tc tys ty
= do
tc <- builtin get_tc
return $ foldr (mk tc) ty tys
where
mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2]
mkWrapType :: Type -> VM Type
mkWrapType ty = mkBuiltinTyConApp wrapTyCon [ty]
mkClosureTypes :: [Type] -> Type -> VM Type
mkClosureTypes = mkBuiltinTyConApps closureTyCon
mkPReprType :: Type -> VM Type
mkPReprType ty = mkBuiltinTyConApp preprTyCon [ty]
-----
mkPArrayType :: Type -> VM Type
mkPArrayType ty
| Just tycon <- splitPrimTyCon ty
= do
r <- lookupPrimPArray tycon
case r of
Just arr -> return $ mkTyConApp arr []
Nothing -> cantVectorise "Primitive tycon not vectorised" (ppr tycon)
mkPArrayType ty = mkBuiltinTyConApp parrayTyCon [ty]
splitPrimTyCon :: Type -> Maybe TyCon
splitPrimTyCon ty
| Just (tycon, []) <- splitTyConApp_maybe ty
, isPrimTyCon tycon
= Just tycon
| otherwise = Nothing
------
mkPArray :: Type -> CoreExpr -> CoreExpr -> VM CoreExpr
mkPArray ty len dat = do
tc <- builtin parrayTyCon
let [dc] = tyConDataCons tc
return $ mkConApp dc [Type ty, len, dat]
mkPDataType :: Type -> VM Type
mkPDataType ty = mkBuiltinTyConApp pdataTyCon [ty]
mkBuiltinCo :: (Builtins -> TyCon) -> VM Coercion
mkBuiltinCo get_tc
= do
tc <- builtin get_tc
return $ mkTyConAppCo tc []
mkVScrut :: VExpr -> VM (CoreExpr, CoreExpr, TyCon, [Type])
mkVScrut (ve, le)
= do
(tc, arg_tys) <- pdataReprTyCon ty
return (ve, unwrapFamInstScrut tc arg_tys le, tc, arg_tys)
where
ty = exprType ve
preprSynTyCon :: Type -> VM (TyCon, [Type])
preprSynTyCon ty = builtin preprTyCon >>= (`lookupFamInst` [ty])
pdataReprTyCon :: Type -> VM (TyCon, [Type])
pdataReprTyCon ty = builtin pdataTyCon >>= (`lookupFamInst` [ty])
pdataReprDataCon :: Type -> VM (DataCon, [Type])
pdataReprDataCon ty
= do
(tc, arg_tys) <- pdataReprTyCon ty
let [dc] = tyConDataCons tc
return (dc, arg_tys)
prDFunOfTyCon :: TyCon -> VM CoreExpr
prDFunOfTyCon tycon
= liftM Var
. maybeCantVectoriseM "No PR dictionary for tycon" (ppr tycon)
$ lookupTyConPR tycon
|
