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 workers <- mapM vectDataConWorkers pa_insts
72 binds' <- mapM vectTopBind (mg_binds guts)
73 return $ guts { mg_types = types'
74 , mg_binds = Rec (concat workers ++ concat dicts) : binds'
75 , mg_inst_env = inst_env'
76 , mg_fam_inst_env = fam_inst_env'
77 , mg_insts = mg_insts guts ++ insts
78 , mg_fam_insts = mg_fam_insts guts ++ fam_insts
81 vectTopBind :: CoreBind -> VM CoreBind
82 vectTopBind b@(NonRec var expr)
84 var' <- vectTopBinder var
85 expr' <- vectTopRhs var expr
87 return . Rec $ (var, expr) : (var', expr') : hs
91 vectTopBind b@(Rec bs)
93 vars' <- mapM vectTopBinder vars
94 exprs' <- zipWithM vectTopRhs vars exprs
96 return . Rec $ bs ++ zip vars' exprs' ++ hs
100 (vars, exprs) = unzip bs
102 vectTopBinder :: Var -> VM Var
105 vty <- vectType (idType var)
106 var' <- cloneId mkVectOcc var vty
107 defGlobalVar var var'
110 vectTopRhs :: Var -> CoreExpr -> VM CoreExpr
113 closedV . liftM vectorised
115 $ vectPolyExpr (freeVars expr)
117 -- ----------------------------------------------------------------------------
120 vectBndr :: Var -> VM VVar
123 vty <- vectType (idType v)
124 lty <- mkPArrayType vty
125 let vv = v `Id.setIdType` vty
126 lv = v `Id.setIdType` lty
127 updLEnv (mapTo vv lv)
130 mapTo vv lv env = env { local_vars = extendVarEnv (local_vars env) v (vv, lv) }
132 vectBndrIn :: Var -> VM a -> VM (VVar, a)
140 vectBndrsIn :: [Var] -> VM a -> VM ([VVar], a)
144 vvs <- mapM vectBndr vs
148 -- ----------------------------------------------------------------------------
151 vectVar :: Var -> VM VExpr
156 Local (vv,lv) -> return (Var vv, Var lv)
159 lexpr <- liftPA vexpr
160 return (vexpr, lexpr)
162 vectPolyVar :: Var -> [Type] -> VM VExpr
165 vtys <- mapM vectType tys
168 Local (vv, lv) -> liftM2 (,) (polyApply (Var vv) vtys)
169 (polyApply (Var lv) vtys)
171 vexpr <- polyApply (Var poly) vtys
172 lexpr <- liftPA vexpr
173 return (vexpr, lexpr)
175 vectLiteral :: Literal -> VM VExpr
178 lexpr <- liftPA (Lit lit)
179 return (Lit lit, lexpr)
181 vectPolyExpr :: CoreExprWithFVs -> VM VExpr
183 = polyAbstract tvs $ \abstract ->
185 mono' <- vectExpr mono
186 return $ mapVect abstract mono'
188 (tvs, mono) = collectAnnTypeBinders expr
190 vectExpr :: CoreExprWithFVs -> VM VExpr
191 vectExpr (_, AnnType ty)
192 = liftM vType (vectType ty)
194 vectExpr (_, AnnVar v) = vectVar v
196 vectExpr (_, AnnLit lit) = vectLiteral lit
198 vectExpr (_, AnnNote note expr)
199 = liftM (vNote note) (vectExpr expr)
201 vectExpr e@(_, AnnApp _ arg)
203 = vectTyAppExpr fn tys
205 (fn, tys) = collectAnnTypeArgs e
207 vectExpr (_, AnnApp fn arg)
211 mkClosureApp fn' arg'
213 vectExpr (_, AnnCase expr bndr ty alts)
214 = panic "vectExpr: case"
216 vectExpr (_, AnnLet (AnnNonRec bndr rhs) body)
218 vrhs <- localV . inBind bndr $ vectPolyExpr rhs
219 (vbndr, vbody) <- vectBndrIn bndr (vectExpr body)
220 return $ vLet (vNonRec vbndr vrhs) vbody
222 vectExpr (_, AnnLet (AnnRec bs) body)
224 (vbndrs, (vrhss, vbody)) <- vectBndrsIn bndrs
226 (zipWithM vect_rhs bndrs rhss)
228 return $ vLet (vRec vbndrs vrhss) vbody
230 (bndrs, rhss) = unzip bs
232 vect_rhs bndr rhs = localV
236 vectExpr e@(fvs, AnnLam bndr _)
237 | not (isId bndr) = pprPanic "vectExpr" (ppr $ deAnnotate e)
238 | otherwise = vectLam fvs bs body
240 (bs,body) = collectAnnValBinders e
242 vectLam :: VarSet -> [Var] -> CoreExprWithFVs -> VM VExpr
245 tyvars <- localTyVars
246 (vs, vvs) <- readLEnv $ \env ->
247 unzip [(var, vv) | var <- varSetElems fvs
248 , Just vv <- [lookupVarEnv (local_vars env) var]]
250 arg_tys <- mapM (vectType . idType) bs
251 res_ty <- vectType (exprType $ deAnnotate body)
253 buildClosures tyvars vvs arg_tys res_ty
254 . hoistPolyVExpr tyvars
256 lc <- builtin liftingContext
257 (vbndrs, vbody) <- vectBndrsIn (vs ++ bs)
259 return $ vLams lc vbndrs vbody
261 vectTyAppExpr :: CoreExprWithFVs -> [Type] -> VM VExpr
262 vectTyAppExpr (_, AnnVar v) tys = vectPolyVar v tys
263 vectTyAppExpr e tys = pprPanic "vectTyAppExpr" (ppr $ deAnnotate e)