Datasets:
DarqueDante
/
bob

Dataset card Data Studio Files Community
2
text
stringlengths
0
1.05M
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE Safe #-}
{-# LANGUAGE Strict #-}
{-# LANGUAGE TupleSections #-}
{-# LANGUAGE TypeFamilies #-}
-- |
--
-- This module implements a transformation from source to core
-- Futhark.
module Futhark.Internalise (internaliseProg) where
import Control.Monad.Reader
import Data.Bitraversable
import Data.List (find, intercalate, intersperse, nub, transpose)
import qualified Data.List.NonEmpty as NE
import qualified Data.Map.Strict as M
import qualified Data.Set as S
import Futhark.IR.SOACS as I hiding (stmPattern)
import Futhark.Internalise.AccurateSizes
import Futhark.Internalise.Bindings
import Futhark.Internalise.Defunctionalise as Defunctionalise
import Futhark.Internalise.Defunctorise as Defunctorise
import Futhark.Internalise.Lambdas
import Futhark.Internalise.Monad as I
import Futhark.Internalise.Monomorphise as Monomorphise
import Futhark.Internalise.TypesValues
import Futhark.Transform.Rename as I
import Futhark.Util (splitAt3)
import Language.Futhark as E hiding (TypeArg)
import Language.Futhark.Semantic (Imports)
-- | Convert a program in source Futhark to a program in the Futhark
-- core language.
internaliseProg ::
MonadFreshNames m =>
Bool ->
Imports ->
m (I.Prog SOACS)
internaliseProg always_safe prog = do
prog_decs <- Defunctorise.transformProg prog
prog_decs' <- Monomorphise.transformProg prog_decs
prog_decs'' <- Defunctionalise.transformProg prog_decs'
(consts, funs) <-
runInternaliseM always_safe (internaliseValBinds prog_decs'')
I.renameProg $ I.Prog consts funs
internaliseAttr :: E.AttrInfo -> Attr
internaliseAttr (E.AttrAtom v) = I.AttrAtom v
internaliseAttr (E.AttrComp f attrs) = I.AttrComp f $ map internaliseAttr attrs
internaliseAttrs :: [E.AttrInfo] -> Attrs
internaliseAttrs = mconcat . map (oneAttr . internaliseAttr)
internaliseValBinds :: [E.ValBind] -> InternaliseM ()
internaliseValBinds = mapM_ internaliseValBind
internaliseFunName :: VName -> [E.Pattern] -> InternaliseM Name
internaliseFunName ofname [] = return $ nameFromString $ pretty ofname ++ "f"
internaliseFunName ofname _ = do
info <- lookupFunction' ofname
-- In some rare cases involving local functions, the same function
-- name may be re-used in multiple places. We check whether the
-- function name has already been used, and generate a new one if
-- so.
case info of
Just _ -> nameFromString . pretty <$> newNameFromString (baseString ofname)
Nothing -> return $ nameFromString $ pretty ofname
internaliseValBind :: E.ValBind -> InternaliseM ()
internaliseValBind fb@(E.ValBind entry fname retdecl (Info (rettype, _)) tparams params body _ attrs loc) = do
localConstsScope $
bindingParams tparams params $ \shapeparams params' -> do
let shapenames = map I.paramName shapeparams
normal_params = shapenames ++ map I.paramName (concat params')
normal_param_names = namesFromList normal_params
fname' <- internaliseFunName fname params
msg <- case retdecl of
Just dt ->
errorMsg
. ("Function return value does not match shape of type " :)
<$> typeExpForError dt
Nothing -> return $ errorMsg ["Function return value does not match shape of declared return type."]
((rettype', body_res), body_stms) <- collectStms $ do
body_res <- internaliseExp "res" body
rettype_bad <- internaliseReturnType rettype
let rettype' = zeroExts rettype_bad
return (rettype', body_res)
body' <-
ensureResultExtShape msg loc (map I.fromDecl rettype') $
mkBody body_stms body_res
constants <- allConsts
let free_in_fun =
freeIn body'
`namesSubtract` normal_param_names
`namesSubtract` constants