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 ( mkSysTvName, getName )
31 import MkId ( unwrapFamInstScrut )
34 import DsMonad hiding (mapAndUnzipM)
35 import DsUtils ( mkCoreTup, mkCoreTupTy )
37 import Literal ( Literal )
40 import TysPrim ( intPrimTy )
41 import BasicTypes ( Boxity(..) )
45 import Control.Monad ( liftM, liftM2, zipWithM, mapAndUnzipM )
47 vectorise :: HscEnv -> UniqSupply -> RuleBase -> ModGuts
48 -> IO (SimplCount, ModGuts)
49 vectorise hsc_env _ _ guts
51 showPass dflags "Vectorisation"
53 let info = hptVectInfo hsc_env `plusVectInfo` eps_vect_info eps
54 Just (info', guts') <- initV hsc_env guts info (vectModule guts)
55 endPass dflags "Vectorisation" Opt_D_dump_vect (mg_binds guts')
56 return (zeroSimplCount dflags, guts' { mg_vect_info = info' })
58 dflags = hsc_dflags hsc_env
60 vectModule :: ModGuts -> VM ModGuts
63 (types', fam_insts, pa_insts) <- vectTypeEnv (mg_types guts)
65 let insts = map painstInstance pa_insts
66 fam_inst_env' = extendFamInstEnvList (mg_fam_inst_env guts) fam_insts
67 inst_env' = extendInstEnvList (mg_inst_env guts) insts
68 updGEnv (setInstEnvs inst_env' fam_inst_env')
70 dicts <- mapM buildPADict pa_insts
71 binds' <- mapM vectTopBind (mg_binds guts)
72 return $ guts { mg_types = types'
73 , mg_binds = Rec (concat dicts) : binds'
74 , mg_inst_env = inst_env'
75 , mg_fam_inst_env = fam_inst_env'
76 , mg_insts = mg_insts guts ++ insts
77 , mg_fam_insts = mg_fam_insts guts ++ fam_insts
80 vectTopBind :: CoreBind -> VM CoreBind
81 vectTopBind b@(NonRec var expr)
83 var' <- vectTopBinder var
84 expr' <- vectTopRhs var expr
86 return . Rec $ (var, expr) : (var', expr') : hs
90 vectTopBind b@(Rec bs)
92 vars' <- mapM vectTopBinder vars
93 exprs' <- zipWithM vectTopRhs vars exprs
95 return . Rec $ bs ++ zip vars' exprs' ++ hs
99 (vars, exprs) = unzip bs
101 vectTopBinder :: Var -> VM Var
104 vty <- vectType (idType var)
105 name <- cloneName mkVectOcc (getName var)
106 let var' | isExportedId var = Id.mkExportedLocalId name vty
107 | otherwise = Id.mkLocalId name vty
108 defGlobalVar var var'
111 vectTopRhs :: Var -> CoreExpr -> VM CoreExpr
114 lc <- newLocalVar FSLIT("lc") intPrimTy
115 closedV . liftM vectorised
117 $ vectPolyExpr lc (freeVars expr)
119 -- ----------------------------------------------------------------------------
122 vectBndr :: Var -> VM VVar
125 vty <- vectType (idType v)
126 lty <- mkPArrayType vty
127 let vv = v `Id.setIdType` vty
128 lv = v `Id.setIdType` lty
129 updLEnv (mapTo vv lv)
132 mapTo vv lv env = env { local_vars = extendVarEnv (local_vars env) v (vv, lv) }
134 vectBndrIn :: Var -> VM a -> VM (VVar, a)
142 vectBndrsIn :: [Var] -> VM a -> VM ([VVar], a)
146 vvs <- mapM vectBndr vs
150 -- ----------------------------------------------------------------------------
153 vectVar :: Var -> Var -> VM VExpr
158 Local (vv,lv) -> return (Var vv, Var lv)
161 lexpr <- replicatePA vexpr (Var lc)
162 return (vexpr, lexpr)
164 vectPolyVar :: Var -> Var -> [Type] -> VM VExpr
167 vtys <- mapM vectType tys
170 Local (vv, lv) -> liftM2 (,) (polyApply (Var vv) vtys)
171 (polyApply (Var lv) vtys)
173 vexpr <- polyApply (Var poly) vtys
174 lexpr <- replicatePA vexpr (Var lc)
175 return (vexpr, lexpr)
177 vectLiteral :: Var -> Literal -> VM VExpr
180 lexpr <- replicatePA (Lit lit) (Var lc)
181 return (Lit lit, lexpr)
183 vectPolyExpr :: Var -> CoreExprWithFVs -> VM VExpr
185 = polyAbstract tvs $ \abstract ->
186 -- FIXME: shadowing (tvs in lc)
188 mono' <- vectExpr lc mono
189 return $ mapVect abstract mono'
191 (tvs, mono) = collectAnnTypeBinders expr
193 vectExpr :: Var -> CoreExprWithFVs -> VM VExpr
194 vectExpr lc (_, AnnType ty)
195 = liftM vType (vectType ty)
197 vectExpr lc (_, AnnVar v) = vectVar lc v
199 vectExpr lc (_, AnnLit lit) = vectLiteral lc lit
201 vectExpr lc (_, AnnNote note expr)
202 = liftM (vNote note) (vectExpr lc expr)
204 vectExpr lc e@(_, AnnApp _ arg)
206 = vectTyAppExpr lc fn tys
208 (fn, tys) = collectAnnTypeArgs e
210 vectExpr lc (_, AnnApp fn arg)
212 fn' <- vectExpr lc fn
213 arg' <- vectExpr lc arg
214 mkClosureApp fn' arg'
216 vectExpr lc (_, AnnCase expr bndr ty alts)
217 = panic "vectExpr: case"
219 vectExpr lc (_, AnnLet (AnnNonRec bndr rhs) body)
221 vrhs <- localV . inBind bndr $ vectPolyExpr lc rhs
222 (vbndr, vbody) <- vectBndrIn bndr (vectExpr lc body)
223 return $ vLet (vNonRec vbndr vrhs) vbody
225 vectExpr lc (_, AnnLet (AnnRec bs) body)
227 (vbndrs, (vrhss, vbody)) <- vectBndrsIn bndrs
229 (zipWithM vect_rhs bndrs rhss)
230 (vectPolyExpr lc body)
231 return $ vLet (vRec vbndrs vrhss) vbody
233 (bndrs, rhss) = unzip bs
235 vect_rhs bndr rhs = localV
239 vectExpr lc e@(fvs, AnnLam bndr _)
240 | not (isId bndr) = pprPanic "vectExpr" (ppr $ deAnnotate e)
241 | otherwise = vectLam lc fvs bs body
243 (bs,body) = collectAnnValBinders e
245 vectLam :: Var -> VarSet -> [Var] -> CoreExprWithFVs -> VM VExpr
246 vectLam lc fvs bs body
248 tyvars <- localTyVars
249 (vs, vvs) <- readLEnv $ \env ->
250 unzip [(var, vv) | var <- varSetElems fvs
251 , Just vv <- [lookupVarEnv (local_vars env) var]]
253 arg_tys <- mapM (vectType . idType) bs
254 res_ty <- vectType (exprType $ deAnnotate body)
256 buildClosures tyvars lc vvs arg_tys res_ty
257 . hoistPolyVExpr tyvars
259 (vbndrs, vbody) <- vectBndrsIn (vs ++ bs)
261 return $ vLams lc vbndrs vbody
263 vectTyAppExpr :: Var -> CoreExprWithFVs -> [Type] -> VM VExpr
264 vectTyAppExpr lc (_, AnnVar v) tys = vectPolyVar lc v tys
265 vectTyAppExpr lc e tys = pprPanic "vectTyAppExpr" (ppr $ deAnnotate e)