1 module Vectorise( vectorise )
4 #include "HsVersions.h"
14 import CoreLint ( showPass, endPass )
18 import SimplMonad ( SimplCount, zeroSimplCount )
19 import Rules ( RuleBase )
23 import FamInstEnv ( extendFamInstEnvList )
24 import InstEnv ( extendInstEnvList )
28 import Name ( Name, mkSysTvName, getName )
31 import MkId ( unwrapFamInstScrut )
33 import RdrName ( RdrName, mkRdrQual )
34 import Module ( mkModuleNameFS )
36 import DsMonad hiding (mapAndUnzipM)
37 import DsUtils ( mkCoreTup, mkCoreTupTy )
39 import Literal ( Literal )
42 import TysPrim ( intPrimTy )
43 import BasicTypes ( Boxity(..) )
47 import Control.Monad ( liftM, liftM2, zipWithM, mapAndUnzipM )
49 mkNDPVar :: FastString -> RdrName
50 mkNDPVar fs = mkRdrQual nDP_BUILTIN (mkVarOccFS fs)
52 builtin_PAs :: [(Name, RdrName)]
53 builtin_PAs = [(intTyConName, mkNDPVar FSLIT("dPA_Int"))]
55 vectorise :: HscEnv -> UniqSupply -> RuleBase -> ModGuts
56 -> IO (SimplCount, ModGuts)
57 vectorise hsc_env _ _ guts
59 showPass dflags "Vectorisation"
61 let info = hptVectInfo hsc_env `plusVectInfo` eps_vect_info eps
62 Just (info', guts') <- initV hsc_env guts info (vectModule guts)
63 endPass dflags "Vectorisation" Opt_D_dump_vect (mg_binds guts')
64 return (zeroSimplCount dflags, guts' { mg_vect_info = info' })
66 dflags = hsc_dflags hsc_env
68 vectModule :: ModGuts -> VM ModGuts
71 defTyConRdrPAs builtin_PAs
72 (types', fam_insts) <- vectTypeEnv (mg_types guts)
74 let fam_inst_env' = extendFamInstEnvList (mg_fam_inst_env guts) fam_insts
75 updGEnv (setFamInstEnv fam_inst_env')
77 -- dicts <- mapM buildPADict pa_insts
78 -- workers <- mapM vectDataConWorkers pa_insts
79 binds' <- mapM vectTopBind (mg_binds guts)
80 return $ guts { mg_types = types'
81 , mg_binds = -- Rec (concat workers ++ concat dicts) :
83 , mg_fam_inst_env = fam_inst_env'
84 , mg_fam_insts = mg_fam_insts guts ++ fam_insts
87 vectTopBind :: CoreBind -> VM CoreBind
88 vectTopBind b@(NonRec var expr)
90 var' <- vectTopBinder var
91 expr' <- vectTopRhs var expr
93 return . Rec $ (var, expr) : (var', expr') : hs
97 vectTopBind b@(Rec bs)
99 vars' <- mapM vectTopBinder vars
100 exprs' <- zipWithM vectTopRhs vars exprs
102 return . Rec $ bs ++ zip vars' exprs' ++ hs
106 (vars, exprs) = unzip bs
108 vectTopBinder :: Var -> VM Var
111 vty <- vectType (idType var)
112 var' <- cloneId mkVectOcc var vty
113 defGlobalVar var var'
116 vectTopRhs :: Var -> CoreExpr -> VM CoreExpr
119 closedV . liftM vectorised
121 $ vectPolyExpr (freeVars expr)
123 -- ----------------------------------------------------------------------------
126 vectBndr :: Var -> VM VVar
129 vty <- vectType (idType v)
130 lty <- mkPArrayType vty
131 let vv = v `Id.setIdType` vty
132 lv = v `Id.setIdType` lty
133 updLEnv (mapTo vv lv)
136 mapTo vv lv env = env { local_vars = extendVarEnv (local_vars env) v (vv, lv) }
138 vectBndrIn :: Var -> VM a -> VM (VVar, a)
146 vectBndrsIn :: [Var] -> VM a -> VM ([VVar], a)
150 vvs <- mapM vectBndr vs
154 -- ----------------------------------------------------------------------------
157 vectVar :: Var -> VM VExpr
162 Local (vv,lv) -> return (Var vv, Var lv)
165 lexpr <- liftPA vexpr
166 return (vexpr, lexpr)
168 vectPolyVar :: Var -> [Type] -> VM VExpr
171 vtys <- mapM vectType tys
174 Local (vv, lv) -> liftM2 (,) (polyApply (Var vv) vtys)
175 (polyApply (Var lv) vtys)
177 vexpr <- polyApply (Var poly) vtys
178 lexpr <- liftPA vexpr
179 return (vexpr, lexpr)
181 vectLiteral :: Literal -> VM VExpr
184 lexpr <- liftPA (Lit lit)
185 return (Lit lit, lexpr)
187 vectPolyExpr :: CoreExprWithFVs -> VM VExpr
189 = polyAbstract tvs $ \abstract ->
191 mono' <- vectExpr mono
192 return $ mapVect abstract mono'
194 (tvs, mono) = collectAnnTypeBinders expr
196 vectExpr :: CoreExprWithFVs -> VM VExpr
197 vectExpr (_, AnnType ty)
198 = liftM vType (vectType ty)
200 vectExpr (_, AnnVar v) = vectVar v
202 vectExpr (_, AnnLit lit) = vectLiteral lit
204 vectExpr (_, AnnNote note expr)
205 = liftM (vNote note) (vectExpr expr)
207 vectExpr e@(_, AnnApp _ arg)
209 = vectTyAppExpr fn tys
211 (fn, tys) = collectAnnTypeArgs e
213 vectExpr (_, AnnApp fn arg)
217 mkClosureApp fn' arg'
219 vectExpr (_, AnnCase expr bndr ty alts)
220 = panic "vectExpr: case"
222 vectExpr (_, AnnLet (AnnNonRec bndr rhs) body)
224 vrhs <- localV . inBind bndr $ vectPolyExpr rhs
225 (vbndr, vbody) <- vectBndrIn bndr (vectExpr body)
226 return $ vLet (vNonRec vbndr vrhs) vbody
228 vectExpr (_, AnnLet (AnnRec bs) body)
230 (vbndrs, (vrhss, vbody)) <- vectBndrsIn bndrs
232 (zipWithM vect_rhs bndrs rhss)
234 return $ vLet (vRec vbndrs vrhss) vbody
236 (bndrs, rhss) = unzip bs
238 vect_rhs bndr rhs = localV
242 vectExpr e@(fvs, AnnLam bndr _)
243 | not (isId bndr) = pprPanic "vectExpr" (ppr $ deAnnotate e)
244 | otherwise = vectLam fvs bs body
246 (bs,body) = collectAnnValBinders e
248 vectLam :: VarSet -> [Var] -> CoreExprWithFVs -> VM VExpr
251 tyvars <- localTyVars
252 (vs, vvs) <- readLEnv $ \env ->
253 unzip [(var, vv) | var <- varSetElems fvs
254 , Just vv <- [lookupVarEnv (local_vars env) var]]
256 arg_tys <- mapM (vectType . idType) bs
257 res_ty <- vectType (exprType $ deAnnotate body)
259 buildClosures tyvars vvs arg_tys res_ty
260 . hoistPolyVExpr tyvars
262 lc <- builtin liftingContext
263 (vbndrs, vbody) <- vectBndrsIn (vs ++ bs)
265 return $ vLams lc vbndrs vbody
267 vectTyAppExpr :: CoreExprWithFVs -> [Type] -> VM VExpr
268 vectTyAppExpr (_, AnnVar v) tys = vectPolyVar v tys
269 vectTyAppExpr e tys = pprPanic "vectTyAppExpr" (ppr $ deAnnotate e)