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 :: String -> RdrName
50 mkNDPVar s = mkRdrQual nDP_BUILTIN (mkVarOcc s)
52 mkNDPVarFS :: FastString -> RdrName
53 mkNDPVarFS fs = mkRdrQual nDP_BUILTIN (mkVarOccFS fs)
55 builtin_PAs :: [(Name, RdrName)]
57 mk intTyConName FSLIT("dPA_Int")
61 mk name fs = (name, mkNDPVarFS fs)
63 tups = mk_tup 0 : map mk_tup [2..3]
64 mk_tup n = (getName $ tupleTyCon Boxed n, mkNDPVar $ "dPA_" ++ show n)
66 vectorise :: HscEnv -> UniqSupply -> RuleBase -> ModGuts
67 -> IO (SimplCount, ModGuts)
68 vectorise hsc_env _ _ guts
70 showPass dflags "Vectorisation"
72 let info = hptVectInfo hsc_env `plusVectInfo` eps_vect_info eps
73 Just (info', guts') <- initV hsc_env guts info (vectModule guts)
74 endPass dflags "Vectorisation" Opt_D_dump_vect (mg_binds guts')
75 return (zeroSimplCount dflags, guts' { mg_vect_info = info' })
77 dflags = hsc_dflags hsc_env
79 vectModule :: ModGuts -> VM ModGuts
82 defTyConRdrPAs builtin_PAs
83 (types', fam_insts, tc_binds) <- vectTypeEnv (mg_types guts)
85 let fam_inst_env' = extendFamInstEnvList (mg_fam_inst_env guts) fam_insts
86 updGEnv (setFamInstEnv fam_inst_env')
88 -- dicts <- mapM buildPADict pa_insts
89 -- workers <- mapM vectDataConWorkers pa_insts
90 binds' <- mapM vectTopBind (mg_binds guts)
91 return $ guts { mg_types = types'
92 , mg_binds = Rec tc_binds : binds'
93 , mg_fam_inst_env = fam_inst_env'
94 , mg_fam_insts = mg_fam_insts guts ++ fam_insts
97 vectTopBind :: CoreBind -> VM CoreBind
98 vectTopBind b@(NonRec var expr)
100 var' <- vectTopBinder var
101 expr' <- vectTopRhs var expr
103 return . Rec $ (var, expr) : (var', expr') : hs
107 vectTopBind b@(Rec bs)
109 vars' <- mapM vectTopBinder vars
110 exprs' <- zipWithM vectTopRhs vars exprs
112 return . Rec $ bs ++ zip vars' exprs' ++ hs
116 (vars, exprs) = unzip bs
118 vectTopBinder :: Var -> VM Var
121 vty <- vectType (idType var)
122 var' <- cloneId mkVectOcc var vty
123 defGlobalVar var var'
126 vectTopRhs :: Var -> CoreExpr -> VM CoreExpr
129 closedV . liftM vectorised
131 $ vectPolyExpr (freeVars expr)
133 -- ----------------------------------------------------------------------------
136 vectBndr :: Var -> VM VVar
139 vty <- vectType (idType v)
140 lty <- mkPArrayType vty
141 let vv = v `Id.setIdType` vty
142 lv = v `Id.setIdType` lty
143 updLEnv (mapTo vv lv)
146 mapTo vv lv env = env { local_vars = extendVarEnv (local_vars env) v (vv, lv) }
148 vectBndrIn :: Var -> VM a -> VM (VVar, a)
156 vectBndrsIn :: [Var] -> VM a -> VM ([VVar], a)
160 vvs <- mapM vectBndr vs
164 -- ----------------------------------------------------------------------------
167 vectVar :: Var -> VM VExpr
172 Local (vv,lv) -> return (Var vv, Var lv)
175 lexpr <- liftPA vexpr
176 return (vexpr, lexpr)
178 vectPolyVar :: Var -> [Type] -> VM VExpr
181 vtys <- mapM vectType tys
184 Local (vv, lv) -> liftM2 (,) (polyApply (Var vv) vtys)
185 (polyApply (Var lv) vtys)
187 vexpr <- polyApply (Var poly) vtys
188 lexpr <- liftPA vexpr
189 return (vexpr, lexpr)
191 vectLiteral :: Literal -> VM VExpr
194 lexpr <- liftPA (Lit lit)
195 return (Lit lit, lexpr)
197 vectPolyExpr :: CoreExprWithFVs -> VM VExpr
199 = polyAbstract tvs $ \abstract ->
201 mono' <- vectExpr mono
202 return $ mapVect abstract mono'
204 (tvs, mono) = collectAnnTypeBinders expr
206 vectExpr :: CoreExprWithFVs -> VM VExpr
207 vectExpr (_, AnnType ty)
208 = liftM vType (vectType ty)
210 vectExpr (_, AnnVar v) = vectVar v
212 vectExpr (_, AnnLit lit) = vectLiteral lit
214 vectExpr (_, AnnNote note expr)
215 = liftM (vNote note) (vectExpr expr)
217 vectExpr e@(_, AnnApp _ arg)
219 = vectTyAppExpr fn tys
221 (fn, tys) = collectAnnTypeArgs e
223 vectExpr (_, AnnApp fn arg)
227 mkClosureApp fn' arg'
229 vectExpr (_, AnnCase expr bndr ty alts)
230 = panic "vectExpr: case"
232 vectExpr (_, AnnLet (AnnNonRec bndr rhs) body)
234 vrhs <- localV . inBind bndr $ vectPolyExpr rhs
235 (vbndr, vbody) <- vectBndrIn bndr (vectExpr body)
236 return $ vLet (vNonRec vbndr vrhs) vbody
238 vectExpr (_, AnnLet (AnnRec bs) body)
240 (vbndrs, (vrhss, vbody)) <- vectBndrsIn bndrs
242 (zipWithM vect_rhs bndrs rhss)
244 return $ vLet (vRec vbndrs vrhss) vbody
246 (bndrs, rhss) = unzip bs
248 vect_rhs bndr rhs = localV
252 vectExpr e@(fvs, AnnLam bndr _)
253 | not (isId bndr) = pprPanic "vectExpr" (ppr $ deAnnotate e)
254 | otherwise = vectLam fvs bs body
256 (bs,body) = collectAnnValBinders e
258 vectLam :: VarSet -> [Var] -> CoreExprWithFVs -> VM VExpr
261 tyvars <- localTyVars
262 (vs, vvs) <- readLEnv $ \env ->
263 unzip [(var, vv) | var <- varSetElems fvs
264 , Just vv <- [lookupVarEnv (local_vars env) var]]
266 arg_tys <- mapM (vectType . idType) bs
267 res_ty <- vectType (exprType $ deAnnotate body)
269 buildClosures tyvars vvs arg_tys res_ty
270 . hoistPolyVExpr tyvars
272 lc <- builtin liftingContext
273 (vbndrs, vbody) <- vectBndrsIn (vs ++ bs)
275 return $ vLams lc vbndrs vbody
277 vectTyAppExpr :: CoreExprWithFVs -> [Type] -> VM VExpr
278 vectTyAppExpr (_, AnnVar v) tys = vectPolyVar v tys
279 vectTyAppExpr e tys = pprPanic "vectTyAppExpr" (ppr $ deAnnotate e)