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|
{-# 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 VectCore (
Vect, VVar, VExpr, VBind,
vectorised, lifted,
mapVect,
vNonRec, vRec,
vVar, vType, vNote, vLet,
vLams, vLamsWithoutLC, vVarApps,
vCaseDEFAULT, vCaseProd
) where
#include "HsVersions.h"
import CoreSyn
import CoreUtils ( exprType )
import DataCon ( DataCon )
import Type ( Type )
import Id ( mkWildId )
import Var
type Vect a = (a,a)
type VVar = Vect Var
type VExpr = Vect CoreExpr
type VBind = Vect CoreBind
vectorised :: Vect a -> a
vectorised = fst
lifted :: Vect a -> a
lifted = snd
mapVect :: (a -> b) -> Vect a -> Vect b
mapVect f (x,y) = (f x, f y)
zipWithVect :: (a -> b -> c) -> Vect a -> Vect b -> Vect c
zipWithVect f (x1,y1) (x2,y2) = (f x1 x2, f y1 y2)
vVar :: VVar -> VExpr
vVar = mapVect Var
vType :: Type -> VExpr
vType ty = (Type ty, Type ty)
vNote :: Note -> VExpr -> VExpr
vNote = mapVect . Note
vNonRec :: VVar -> VExpr -> VBind
vNonRec = zipWithVect NonRec
vRec :: [VVar] -> [VExpr] -> VBind
vRec vs es = (Rec (zip vvs ves), Rec (zip lvs les))
where
(vvs, lvs) = unzip vs
(ves, les) = unzip es
vLet :: VBind -> VExpr -> VExpr
vLet = zipWithVect Let
vLams :: Var -> [VVar] -> VExpr -> VExpr
vLams lc vs (ve, le) = (mkLams vvs ve, mkLams (lc:lvs) le)
where
(vvs,lvs) = unzip vs
vLamsWithoutLC :: [VVar] -> VExpr -> VExpr
vLamsWithoutLC vvs (ve,le) = (mkLams vs ve, mkLams ls le)
where
(vs,ls) = unzip vvs
vVarApps :: Var -> VExpr -> [VVar] -> VExpr
vVarApps lc (ve, le) vvs = (ve `mkVarApps` vs, le `mkVarApps` (lc : ls))
where
(vs,ls) = unzip vvs
vCaseDEFAULT :: VExpr -> VVar -> Type -> Type -> VExpr -> VExpr
vCaseDEFAULT (vscrut, lscrut) (vbndr, lbndr) vty lty (vbody, lbody)
= (Case vscrut vbndr vty (mkDEFAULT vbody),
Case lscrut lbndr lty (mkDEFAULT lbody))
where
mkDEFAULT e = [(DEFAULT, [], e)]
vCaseProd :: VExpr -> Type -> Type
-> DataCon -> DataCon -> [Var] -> [VVar] -> VExpr -> VExpr
vCaseProd (vscrut, lscrut) vty lty vdc ldc sh_bndrs bndrs
(vbody,lbody)
= (Case vscrut (mkWildId $ exprType vscrut) vty
[(DataAlt vdc, vbndrs, vbody)],
Case lscrut (mkWildId $ exprType lscrut) lty
[(DataAlt ldc, sh_bndrs ++ lbndrs, lbody)])
where
(vbndrs, lbndrs) = unzip bndrs
|
