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, pa_insts) <- vectTypeEnv (mg_types guts)
74 let insts = map painstInstance pa_insts
75 fam_inst_env' = extendFamInstEnvList (mg_fam_inst_env guts) fam_insts
76 inst_env' = extendInstEnvList (mg_inst_env guts) insts
77 updGEnv (setInstEnvs inst_env' fam_inst_env')
79 dicts <- mapM buildPADict pa_insts
80 workers <- mapM vectDataConWorkers pa_insts
81 binds' <- mapM vectTopBind (mg_binds guts)
82 return $ guts { mg_types = types'
83 , mg_binds = Rec (concat workers ++ concat dicts) : binds'
84 , mg_inst_env = inst_env'
85 , mg_fam_inst_env = fam_inst_env'
86 , mg_insts = mg_insts guts ++ insts
87 , mg_fam_insts = mg_fam_insts guts ++ fam_insts
90 vectTopBind :: CoreBind -> VM CoreBind
91 vectTopBind b@(NonRec var expr)
93 var' <- vectTopBinder var
94 expr' <- vectTopRhs var expr
96 return . Rec $ (var, expr) : (var', expr') : hs
100 vectTopBind b@(Rec bs)
102 vars' <- mapM vectTopBinder vars
103 exprs' <- zipWithM vectTopRhs vars exprs
105 return . Rec $ bs ++ zip vars' exprs' ++ hs
109 (vars, exprs) = unzip bs
111 vectTopBinder :: Var -> VM Var
114 vty <- vectType (idType var)
115 var' <- cloneId mkVectOcc var vty
116 defGlobalVar var var'
119 vectTopRhs :: Var -> CoreExpr -> VM CoreExpr
122 closedV . liftM vectorised
124 $ vectPolyExpr (freeVars expr)
126 -- ----------------------------------------------------------------------------
129 vectBndr :: Var -> VM VVar
132 vty <- vectType (idType v)
133 lty <- mkPArrayType vty
134 let vv = v `Id.setIdType` vty
135 lv = v `Id.setIdType` lty
136 updLEnv (mapTo vv lv)
139 mapTo vv lv env = env { local_vars = extendVarEnv (local_vars env) v (vv, lv) }
141 vectBndrIn :: Var -> VM a -> VM (VVar, a)
149 vectBndrsIn :: [Var] -> VM a -> VM ([VVar], a)
153 vvs <- mapM vectBndr vs
157 -- ----------------------------------------------------------------------------
160 vectVar :: Var -> VM VExpr
165 Local (vv,lv) -> return (Var vv, Var lv)
168 lexpr <- liftPA vexpr
169 return (vexpr, lexpr)
171 vectPolyVar :: Var -> [Type] -> VM VExpr
174 vtys <- mapM vectType tys
177 Local (vv, lv) -> liftM2 (,) (polyApply (Var vv) vtys)
178 (polyApply (Var lv) vtys)
180 vexpr <- polyApply (Var poly) vtys
181 lexpr <- liftPA vexpr
182 return (vexpr, lexpr)
184 vectLiteral :: Literal -> VM VExpr
187 lexpr <- liftPA (Lit lit)
188 return (Lit lit, lexpr)
190 vectPolyExpr :: CoreExprWithFVs -> VM VExpr
192 = polyAbstract tvs $ \abstract ->
194 mono' <- vectExpr mono
195 return $ mapVect abstract mono'
197 (tvs, mono) = collectAnnTypeBinders expr
199 vectExpr :: CoreExprWithFVs -> VM VExpr
200 vectExpr (_, AnnType ty)
201 = liftM vType (vectType ty)
203 vectExpr (_, AnnVar v) = vectVar v
205 vectExpr (_, AnnLit lit) = vectLiteral lit
207 vectExpr (_, AnnNote note expr)
208 = liftM (vNote note) (vectExpr expr)
210 vectExpr e@(_, AnnApp _ arg)
212 = vectTyAppExpr fn tys
214 (fn, tys) = collectAnnTypeArgs e
216 vectExpr (_, AnnApp fn arg)
220 mkClosureApp fn' arg'
222 vectExpr (_, AnnCase expr bndr ty alts)
223 = panic "vectExpr: case"
225 vectExpr (_, AnnLet (AnnNonRec bndr rhs) body)
227 vrhs <- localV . inBind bndr $ vectPolyExpr rhs
228 (vbndr, vbody) <- vectBndrIn bndr (vectExpr body)
229 return $ vLet (vNonRec vbndr vrhs) vbody
231 vectExpr (_, AnnLet (AnnRec bs) body)
233 (vbndrs, (vrhss, vbody)) <- vectBndrsIn bndrs
235 (zipWithM vect_rhs bndrs rhss)
237 return $ vLet (vRec vbndrs vrhss) vbody
239 (bndrs, rhss) = unzip bs
241 vect_rhs bndr rhs = localV
245 vectExpr e@(fvs, AnnLam bndr _)
246 | not (isId bndr) = pprPanic "vectExpr" (ppr $ deAnnotate e)
247 | otherwise = vectLam fvs bs body
249 (bs,body) = collectAnnValBinders e
251 vectLam :: VarSet -> [Var] -> CoreExprWithFVs -> VM VExpr
254 tyvars <- localTyVars
255 (vs, vvs) <- readLEnv $ \env ->
256 unzip [(var, vv) | var <- varSetElems fvs
257 , Just vv <- [lookupVarEnv (local_vars env) var]]
259 arg_tys <- mapM (vectType . idType) bs
260 res_ty <- vectType (exprType $ deAnnotate body)
262 buildClosures tyvars vvs arg_tys res_ty
263 . hoistPolyVExpr tyvars
265 lc <- builtin liftingContext
266 (vbndrs, vbody) <- vectBndrsIn (vs ++ bs)
268 return $ vLams lc vbndrs vbody
270 vectTyAppExpr :: CoreExprWithFVs -> [Type] -> VM VExpr
271 vectTyAppExpr (_, AnnVar v) tys = vectPolyVar v tys
272 vectTyAppExpr e tys = pprPanic "vectTyAppExpr" (ppr $ deAnnotate e)