2 module Vectorise.Monad (
3 module Vectorise.Monad.Base,
4 module Vectorise.Monad.Naming,
5 module Vectorise.Monad.Local,
6 module Vectorise.Monad.Global,
7 module Vectorise.Monad.InstEnv,
17 maybeCantVectoriseVarM,
26 import Vectorise.Monad.Base
27 import Vectorise.Monad.Naming
28 import Vectorise.Monad.Local
29 import Vectorise.Monad.Global
30 import Vectorise.Monad.InstEnv
31 import Vectorise.Builtins
34 import HscTypes hiding ( MonadThings(..) )
35 import MonadUtils (liftIO)
46 -- | Run a vectorisation computation.
52 -> IO (Maybe (VectInfo, a))
54 initV pkg hsc_env guts info p
56 -- XXX: ignores error messages and warnings, check that this is
57 -- indeed ok (the use of "Just r" suggests so)
58 (_,Just r) <- initDs hsc_env (mg_module guts)
66 builtins <- initBuiltins pkg
67 builtin_vars <- initBuiltinVars builtins
68 builtin_tycons <- initBuiltinTyCons builtins
69 let builtin_datacons = initBuiltinDataCons builtins
70 builtin_boxed <- initBuiltinBoxedTyCons builtins
71 builtin_scalars <- initBuiltinScalars builtins
73 eps <- liftIO $ hscEPS hsc_env
74 let famInstEnvs = (eps_fam_inst_env eps, mg_fam_inst_env guts)
75 instEnvs = (eps_inst_env eps, mg_inst_env guts)
77 builtin_prs <- initBuiltinPRs builtins instEnvs
78 builtin_pas <- initBuiltinPAs builtins instEnvs
80 let genv = extendImportedVarsEnv builtin_vars
81 . extendScalars builtin_scalars
82 . extendTyConsEnv builtin_tycons
83 . extendDataConsEnv builtin_datacons
84 . extendPAFunsEnv builtin_pas
85 . setPRFunsEnv builtin_prs
86 . setBoxedTyConsEnv builtin_boxed
87 $ initGlobalEnv info instEnvs famInstEnvs
89 r <- runVM p builtins genv emptyLocalEnv
91 Yes genv _ x -> return $ Just (new_info genv, x)
94 new_info genv = updVectInfo genv (mg_types guts) info
97 -- Builtins -------------------------------------------------------------------
98 -- | Lift a desugaring computation using the `Builtins` into the vectorisation monad.
99 liftBuiltinDs :: (Builtins -> DsM a) -> VM a
100 liftBuiltinDs p = VM $ \bi genv lenv -> do { x <- p bi; return (Yes genv lenv x)}
103 -- | Project something from the set of builtins.
104 builtin :: (Builtins -> a) -> VM a
105 builtin f = VM $ \bi genv lenv -> return (Yes genv lenv (f bi))
108 -- | Lift a function using the `Builtins` into the vectorisation monad.
109 builtins :: (a -> Builtins -> b) -> VM (a -> b)
110 builtins f = VM $ \bi genv lenv -> return (Yes genv lenv (`f` bi))
113 -- Var ------------------------------------------------------------------------
114 -- | Lookup the vectorised and\/or lifted versions of this variable.
115 -- If it's in the global environment we get the vectorised version.
116 -- If it's in the local environment we get both the vectorised and lifted version.
117 lookupVar :: Var -> VM (Scope Var (Var, Var))
119 = do r <- readLEnv $ \env -> lookupVarEnv (local_vars env) v
121 Just e -> return (Local e)
122 Nothing -> liftM Global
123 . maybeCantVectoriseVarM v
124 . readGEnv $ \env -> lookupVarEnv (global_vars env) v
126 maybeCantVectoriseVarM :: Monad m => Var -> m (Maybe Var) -> m Var
127 maybeCantVectoriseVarM v p
135 | Just _ <- isClassOpId_maybe var
136 = cantVectorise "ClassOpId not vectorised:" (ppr var)
139 = cantVectorise "Variable not vectorised:" (ppr var)
141 -- local scalars --------------------------------------------------------------
142 -- | Check if the variable is a locally defined scalar function
145 addGlobalScalar :: Var -> VM ()
147 = updGEnv $ \env -> pprTrace "addGLobalScalar" (ppr var) env{global_scalars = extendVarSet (global_scalars env) var}
149 -- Primitives -----------------------------------------------------------------
150 lookupPrimPArray :: TyCon -> VM (Maybe TyCon)
151 lookupPrimPArray = liftBuiltinDs . primPArray
153 lookupPrimMethod :: TyCon -> String -> VM (Maybe Var)
154 lookupPrimMethod tycon = liftBuiltinDs . primMethod tycon