-{-# OPTIONS -w #-}
--- The above warning supression flag is a temporary kludge.
--- While working on this module you are encouraged to remove it and fix
--- any warnings in the module. See
--- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
--- for details
+-- | The vectoriser rewrites user code to use builtin types and functions exported by the DPH library.
+-- We track the names of those things in the `Builtis` type, and provide selection functions
+-- to help extract their names.
module VectBuiltIn (
- Builtins(..), sumTyCon, prodTyCon, combinePAVar,
+ Builtins(..),
+
+ -- * Projections
+ sumTyCon, prodTyCon, prodDataCon,
+ selTy,selReplicate, selPick, selTags, selElements,
+ combinePDVar, scalarZip, closureCtrFun,
+
+ -- * Initialisation
initBuiltins, initBuiltinVars, initBuiltinTyCons, initBuiltinDataCons,
initBuiltinPAs, initBuiltinPRs,
- initBuiltinBoxedTyCons,
+ initBuiltinBoxedTyCons, initBuiltinScalars,
primMethod, primPArray
) where
-#include "HsVersions.h"
-
import DsMonad
import IfaceEnv ( lookupOrig )
+import InstEnv
-import Module ( Module )
+import Module
import DataCon ( DataCon, dataConName, dataConWorkId )
import TyCon ( TyCon, tyConName, tyConDataCons )
+import Class ( Class, classTyCon )
+import CoreSyn ( CoreExpr, Expr(..) )
import Var ( Var )
import Id ( mkSysLocal )
import Name ( Name, getOccString )
import OccName
import TypeRep ( funTyCon )
-import Type ( Type )
+import Type ( Type, mkTyConApp )
import TysPrim
-import TysWiredIn ( unitTyCon, tupleTyCon,
- intTyCon, intTyConName,
- boolTyCon, boolTyConName, trueDataCon, falseDataCon )
-import Module
+import TysWiredIn ( unitDataCon,
+ tupleTyCon, tupleCon,
+ intTyCon,
+ doubleTyCon,
+ boolTyCon, trueDataCon, falseDataCon,
+ parrTyConName )
+import PrelNames ( word8TyConName, gHC_PARR )
import BasicTypes ( Boxity(..) )
import FastString
import Control.Monad ( liftM, zipWithM )
import Data.List ( unzip4 )
-mAX_NDP_PROD :: Int
-mAX_NDP_PROD = 3
-
-mAX_NDP_SUM :: Int
-mAX_NDP_SUM = 3
-
-mAX_NDP_COMBINE :: Int
-mAX_NDP_COMBINE = 2
-
-mkNDPModule :: FastString -> Module
-mkNDPModule m = mkModule ndpPackageId (mkModuleNameFS m)
-
-nDP_PARRAY = mkNDPModule FSLIT("Data.Array.Parallel.Lifted.PArray")
-nDP_REPR = mkNDPModule FSLIT("Data.Array.Parallel.Lifted.Repr")
-nDP_CLOSURE = mkNDPModule FSLIT("Data.Array.Parallel.Lifted.Closure")
-nDP_PRIM = mkNDPModule FSLIT("Data.Array.Parallel.Lifted.Prim")
-nDP_INSTANCES = mkNDPModule FSLIT("Data.Array.Parallel.Lifted.Instances")
-nDP_COMBINATORS = mkNDPModule FSLIT("Data.Array.Parallel.Lifted.Combinators")
-
-nDP_PRELUDE_PARR = mkNDPModule FSLIT("Data.Array.Parallel.Prelude.PArr")
-nDP_PRELUDE_INT = mkNDPModule FSLIT("Data.Array.Parallel.Prelude.Int")
-
-data Builtins = Builtins {
- parrayTyCon :: TyCon
- , paTyCon :: TyCon
- , paDataCon :: DataCon
- , preprTyCon :: TyCon
- , prTyCon :: TyCon
- , prDataCon :: DataCon
- , parrayIntPrimTyCon :: TyCon
- , parrayBoolPrimTyCon :: TyCon
- , voidTyCon :: TyCon
- , wrapTyCon :: TyCon
- , enumerationTyCon :: TyCon
- , sumTyCons :: Array Int TyCon
- , closureTyCon :: TyCon
- , voidVar :: Var
- , mkPRVar :: Var
- , mkClosureVar :: Var
- , applyClosureVar :: Var
- , mkClosurePVar :: Var
- , applyClosurePVar :: Var
- , replicatePAIntPrimVar :: Var
- , upToPAIntPrimVar :: Var
- , selectPAIntPrimVar :: Var
- , truesPABoolPrimVar :: Var
- , lengthPAVar :: Var
- , replicatePAVar :: Var
- , emptyPAVar :: Var
- , packPAVar :: Var
- , combinePAVars :: Array Int Var
- , liftingContext :: Var
- }
+
+-- Numbers of things exported by the DPH library.
+mAX_DPH_PROD :: Int
+mAX_DPH_PROD = 5
+
+mAX_DPH_SUM :: Int
+mAX_DPH_SUM = 2
+
+mAX_DPH_COMBINE :: Int
+mAX_DPH_COMBINE = 2
+
+mAX_DPH_SCALAR_ARGS :: Int
+mAX_DPH_SCALAR_ARGS = 3
+
+
+-- | Ids of the modules that contain our DPH builtins.
+data Modules
+ = Modules
+ { dph_PArray :: Module
+ , dph_Repr :: Module
+ , dph_Closure :: Module
+ , dph_Unboxed :: Module
+ , dph_Instances :: Module
+ , dph_Combinators :: Module
+ , dph_Scalar :: Module
+ , dph_Selector :: Module
+ , dph_Prelude_PArr :: Module
+ , dph_Prelude_Int :: Module
+ , dph_Prelude_Word8 :: Module
+ , dph_Prelude_Double :: Module
+ , dph_Prelude_Bool :: Module
+ , dph_Prelude_Tuple :: Module
+ }
+
+
+-- | The locations of builtins in the current DPH library.
+dph_Modules :: PackageId -> Modules
+dph_Modules pkg
+ = Modules
+ { dph_PArray = mk (fsLit "Data.Array.Parallel.Lifted.PArray")
+ , dph_Repr = mk (fsLit "Data.Array.Parallel.Lifted.Repr")
+ , dph_Closure = mk (fsLit "Data.Array.Parallel.Lifted.Closure")
+ , dph_Unboxed = mk (fsLit "Data.Array.Parallel.Lifted.Unboxed")
+ , dph_Instances = mk (fsLit "Data.Array.Parallel.Lifted.Instances")
+ , dph_Combinators = mk (fsLit "Data.Array.Parallel.Lifted.Combinators")
+ , dph_Scalar = mk (fsLit "Data.Array.Parallel.Lifted.Scalar")
+ , dph_Selector = mk (fsLit "Data.Array.Parallel.Lifted.Selector")
+
+ , dph_Prelude_PArr = mk (fsLit "Data.Array.Parallel.Prelude.Base.PArr")
+ , dph_Prelude_Int = mk (fsLit "Data.Array.Parallel.Prelude.Base.Int")
+ , dph_Prelude_Word8 = mk (fsLit "Data.Array.Parallel.Prelude.Base.Word8")
+ , dph_Prelude_Double = mk (fsLit "Data.Array.Parallel.Prelude.Base.Double")
+ , dph_Prelude_Bool = mk (fsLit "Data.Array.Parallel.Prelude.Base.Bool")
+ , dph_Prelude_Tuple = mk (fsLit "Data.Array.Parallel.Prelude.Base.Tuple")
+ }
+ where mk = mkModule pkg . mkModuleNameFS
+
+
+-- | Project out ids of modules that contain orphan instances that we need to load.
+dph_Orphans :: [Modules -> Module]
+dph_Orphans = [dph_Repr, dph_Instances]
+
+
+-- | Information about what builtin stuff to use from the DPH base libraries.
+data Builtins
+ = Builtins
+ { dphModules :: Modules
+
+ -- From dph-common:Data.Array.Parallel.Lifted.PArray
+ , parrayTyCon :: TyCon -- ^ PArray
+ , parrayDataCon :: DataCon -- ^ PArray
+ , pdataTyCon :: TyCon -- ^ PData
+ , paTyCon :: TyCon -- ^ PA
+ , paDataCon :: DataCon -- ^ PA
+ , preprTyCon :: TyCon -- ^ PRepr
+ , prTyCon :: TyCon -- ^ PR
+ , prDataCon :: DataCon -- ^ PR
+ , replicatePDVar :: Var -- ^ replicatePD
+ , emptyPDVar :: Var -- ^ emptyPD
+ , packByTagPDVar :: Var -- ^ packByTagPD
+ , combinePDVars :: Array Int Var -- ^ combinePD
+ , scalarClass :: Class -- ^ Scalar
+
+ -- From dph-common:Data.Array.Parallel.Lifted.Closure
+ , closureTyCon :: TyCon -- ^ :->
+ , closureVar :: Var -- ^ closure
+ , applyVar :: Var -- ^ $:
+ , liftedClosureVar :: Var -- ^ liftedClosure
+ , liftedApplyVar :: Var -- ^ liftedApply
+ , closureCtrFuns :: Array Int Var -- ^ closure1 .. closure2
+
+ -- From dph-common:Data.Array.Parallel.Lifted.Repr
+ , voidTyCon :: TyCon -- ^ Void
+ , wrapTyCon :: TyCon -- ^ Wrap
+ , sumTyCons :: Array Int TyCon -- ^ Sum2 .. Sum3
+ , voidVar :: Var -- ^ void
+ , pvoidVar :: Var -- ^ pvoid
+ , fromVoidVar :: Var -- ^ fromVoid
+ , punitVar :: Var -- ^ punit
+
+ -- From dph-common:Data.Array.Parallel.Lifted.Selector
+ , selTys :: Array Int Type -- ^ Sel2
+ , selReplicates :: Array Int CoreExpr -- ^ replicate2
+ , selPicks :: Array Int CoreExpr -- ^ pick2
+ , selTagss :: Array Int CoreExpr -- ^ tagsSel2
+ , selEls :: Array (Int, Int) CoreExpr -- ^ elementsSel2_0 .. elementsSel_2_1
+
+ -- From dph-common:Data.Array.Parallel.Lifted.Scalar
+ -- NOTE: map is counted as a zipWith fn with one argument array.
+ , scalarZips :: Array Int Var -- ^ map, zipWith, zipWith3
+
+ -- A Fresh variable
+ , liftingContext :: Var -- ^ lc
+ }
+
+
+-- | Get an element from one of the arrays of contained by a `Builtins`.
+-- If the indexed thing is not in the array then panic.
+indexBuiltin
+ :: (Ix i, Outputable i)
+ => String -- ^ Name of the selector we've used, for panic messages.
+ -> (Builtins -> Array i a) -- ^ Field selector for the `Builtins`.
+ -> i -- ^ Index into the array.
+ -> Builtins
+ -> a
+
+indexBuiltin fn f i bi
+ | inRange (bounds xs) i = xs ! i
+ | otherwise = pprPanic fn (ppr i)
+ where
+ xs = f bi
+
+
+-- Projections ----------------------------------------------------------------
+selTy :: Int -> Builtins -> Type
+selTy = indexBuiltin "selTy" selTys
+
+selReplicate :: Int -> Builtins -> CoreExpr
+selReplicate = indexBuiltin "selReplicate" selReplicates
+
+selPick :: Int -> Builtins -> CoreExpr
+selPick = indexBuiltin "selPick" selPicks
+
+selTags :: Int -> Builtins -> CoreExpr
+selTags = indexBuiltin "selTags" selTagss
+
+selElements :: Int -> Int -> Builtins -> CoreExpr
+selElements i j = indexBuiltin "selElements" selEls (i,j)
sumTyCon :: Int -> Builtins -> TyCon
-sumTyCon n bi
- | n >= 2 && n <= mAX_NDP_SUM = sumTyCons bi ! n
- | otherwise = pprPanic "sumTyCon" (ppr n)
+sumTyCon = indexBuiltin "sumTyCon" sumTyCons
prodTyCon :: Int -> Builtins -> TyCon
-prodTyCon n bi
- | n == 1 = wrapTyCon bi
- | n >= 0 && n <= mAX_NDP_PROD = tupleTyCon Boxed n
+prodTyCon n _
+ | n >= 2 && n <= mAX_DPH_PROD = tupleTyCon Boxed n
| otherwise = pprPanic "prodTyCon" (ppr n)
-combinePAVar :: Int -> Builtins -> Var
-combinePAVar n bi
- | n >= 2 && n <= mAX_NDP_COMBINE = combinePAVars bi ! n
- | otherwise = pprPanic "combinePAVar" (ppr n)
+prodDataCon :: Int -> Builtins -> DataCon
+prodDataCon n bi = case tyConDataCons (prodTyCon n bi) of
+ [con] -> con
+ _ -> pprPanic "prodDataCon" (ppr n)
+
+combinePDVar :: Int -> Builtins -> Var
+combinePDVar = indexBuiltin "combinePDVar" combinePDVars
-initBuiltins :: DsM Builtins
-initBuiltins
+scalarZip :: Int -> Builtins -> Var
+scalarZip = indexBuiltin "scalarZip" scalarZips
+
+closureCtrFun :: Int -> Builtins -> Var
+closureCtrFun = indexBuiltin "closureCtrFun" closureCtrFuns
+
+
+-- Initialisation -------------------------------------------------------------
+-- | Create the initial map of builtin types and functions.
+initBuiltins
+ :: PackageId -- ^ package id the builtins are in, eg dph-common
+ -> DsM Builtins
+
+initBuiltins pkg
= do
- parrayTyCon <- externalTyCon nDP_PARRAY FSLIT("PArray")
- paTyCon <- externalTyCon nDP_PARRAY FSLIT("PA")
- let [paDataCon] = tyConDataCons paTyCon
- preprTyCon <- externalTyCon nDP_PARRAY FSLIT("PRepr")
- prTyCon <- externalTyCon nDP_PARRAY FSLIT("PR")
- let [prDataCon] = tyConDataCons prTyCon
- parrayIntPrimTyCon <- externalTyCon nDP_PRIM FSLIT("PArray_Int#")
- parrayBoolPrimTyCon <- externalTyCon nDP_PRIM FSLIT("PArray_Bool#")
- closureTyCon <- externalTyCon nDP_CLOSURE FSLIT(":->")
-
- voidTyCon <- externalTyCon nDP_REPR FSLIT("Void")
- wrapTyCon <- externalTyCon nDP_REPR FSLIT("Wrap")
- enumerationTyCon <- externalTyCon nDP_REPR FSLIT("Enumeration")
- sum_tcs <- mapM (externalTyCon nDP_REPR)
- [mkFastString ("Sum" ++ show i) | i <- [2..mAX_NDP_SUM]]
-
- let sumTyCons = listArray (2, mAX_NDP_SUM) sum_tcs
-
- voidVar <- externalVar nDP_REPR FSLIT("void")
- mkPRVar <- externalVar nDP_PARRAY FSLIT("mkPR")
- mkClosureVar <- externalVar nDP_CLOSURE FSLIT("mkClosure")
- applyClosureVar <- externalVar nDP_CLOSURE FSLIT("$:")
- mkClosurePVar <- externalVar nDP_CLOSURE FSLIT("mkClosureP")
- applyClosurePVar <- externalVar nDP_CLOSURE FSLIT("$:^")
- replicatePAIntPrimVar <- externalVar nDP_PRIM FSLIT("replicatePA_Int#")
- upToPAIntPrimVar <- externalVar nDP_PRIM FSLIT("upToPA_Int#")
- selectPAIntPrimVar <- externalVar nDP_PRIM FSLIT("selectPA_Int#")
- truesPABoolPrimVar <- externalVar nDP_PRIM FSLIT("truesPA_Bool#")
- lengthPAVar <- externalVar nDP_PARRAY FSLIT("lengthPA")
- replicatePAVar <- externalVar nDP_PARRAY FSLIT("replicatePA")
- emptyPAVar <- externalVar nDP_PARRAY FSLIT("emptyPA")
- packPAVar <- externalVar nDP_PARRAY FSLIT("packPA")
-
- combines <- mapM (externalVar nDP_PARRAY)
- [mkFastString ("combine" ++ show i ++ "PA")
- | i <- [2..mAX_NDP_COMBINE]]
- let combinePAVars = listArray (2, mAX_NDP_COMBINE) combines
-
- liftingContext <- liftM (\u -> mkSysLocal FSLIT("lc") u intPrimTy)
+ mapM_ load dph_Orphans
+
+ -- From dph-common:Data.Array.Parallel.Lifted.PArray
+ parrayTyCon <- externalTyCon dph_PArray (fsLit "PArray")
+ let [parrayDataCon] = tyConDataCons parrayTyCon
+ pdataTyCon <- externalTyCon dph_PArray (fsLit "PData")
+ paTyCon <- externalClassTyCon dph_PArray (fsLit "PA")
+ let [paDataCon] = tyConDataCons paTyCon
+ preprTyCon <- externalTyCon dph_PArray (fsLit "PRepr")
+ prTyCon <- externalClassTyCon dph_PArray (fsLit "PR")
+ let [prDataCon] = tyConDataCons prTyCon
+
+ -- wher
+ closureTyCon <- externalTyCon dph_Closure (fsLit ":->")
+
+ -- From dph-common:Data.Array.Parallel.Lifted.Repr
+ voidTyCon <- externalTyCon dph_Repr (fsLit "Void")
+ wrapTyCon <- externalTyCon dph_Repr (fsLit "Wrap")
+
+ -- From dph-common:Data.Array.Parallel.Lifted.Selector
+ sel_tys <- mapM (externalType dph_Selector)
+ (numbered "Sel" 2 mAX_DPH_SUM)
+
+ sel_replicates <- mapM (externalFun dph_Selector)
+ (numbered "replicate" 2 mAX_DPH_SUM)
+
+ sel_picks <- mapM (externalFun dph_Selector)
+ (numbered "pick" 2 mAX_DPH_SUM)
+
+ sel_tags <- mapM (externalFun dph_Selector)
+ (numbered "tagsSel" 2 mAX_DPH_SUM)
+
+ sel_els <- mapM mk_elements
+ [(i,j) | i <- [2..mAX_DPH_SUM], j <- [0..i-1]]
+
+ sum_tcs <- mapM (externalTyCon dph_Repr)
+ (numbered "Sum" 2 mAX_DPH_SUM)
+
+ let selTys = listArray (2, mAX_DPH_SUM) sel_tys
+ selReplicates = listArray (2, mAX_DPH_SUM) sel_replicates
+ selPicks = listArray (2, mAX_DPH_SUM) sel_picks
+ selTagss = listArray (2, mAX_DPH_SUM) sel_tags
+ selEls = array ((2,0), (mAX_DPH_SUM, mAX_DPH_SUM)) sel_els
+ sumTyCons = listArray (2, mAX_DPH_SUM) sum_tcs
+
+
+ voidVar <- externalVar dph_Repr (fsLit "void")
+ pvoidVar <- externalVar dph_Repr (fsLit "pvoid")
+ fromVoidVar <- externalVar dph_Repr (fsLit "fromVoid")
+ punitVar <- externalVar dph_Repr (fsLit "punit")
+ closureVar <- externalVar dph_Closure (fsLit "closure")
+ applyVar <- externalVar dph_Closure (fsLit "$:")
+ liftedClosureVar <- externalVar dph_Closure (fsLit "liftedClosure")
+ liftedApplyVar <- externalVar dph_Closure (fsLit "liftedApply")
+ replicatePDVar <- externalVar dph_PArray (fsLit "replicatePD")
+ emptyPDVar <- externalVar dph_PArray (fsLit "emptyPD")
+ packByTagPDVar <- externalVar dph_PArray (fsLit "packByTagPD")
+
+ combines <- mapM (externalVar dph_PArray)
+ [mkFastString ("combine" ++ show i ++ "PD")
+ | i <- [2..mAX_DPH_COMBINE]]
+ let combinePDVars = listArray (2, mAX_DPH_COMBINE) combines
+
+ scalarClass <- externalClass dph_PArray (fsLit "Scalar")
+ scalar_map <- externalVar dph_Scalar (fsLit "scalar_map")
+ scalar_zip2 <- externalVar dph_Scalar (fsLit "scalar_zipWith")
+ scalar_zips <- mapM (externalVar dph_Scalar)
+ (numbered "scalar_zipWith" 3 mAX_DPH_SCALAR_ARGS)
+ let scalarZips = listArray (1, mAX_DPH_SCALAR_ARGS)
+ (scalar_map : scalar_zip2 : scalar_zips)
+ closures <- mapM (externalVar dph_Closure)
+ (numbered "closure" 1 mAX_DPH_SCALAR_ARGS)
+ let closureCtrFuns = listArray (1, mAX_DPH_COMBINE) closures
+
+ liftingContext <- liftM (\u -> mkSysLocal (fsLit "lc") u intPrimTy)
newUnique
return $ Builtins {
- parrayTyCon = parrayTyCon
+ dphModules = modules
+ , parrayTyCon = parrayTyCon
+ , parrayDataCon = parrayDataCon
+ , pdataTyCon = pdataTyCon
, paTyCon = paTyCon
, paDataCon = paDataCon
, preprTyCon = preprTyCon
, prTyCon = prTyCon
, prDataCon = prDataCon
- , parrayIntPrimTyCon = parrayIntPrimTyCon
- , parrayBoolPrimTyCon = parrayBoolPrimTyCon
, voidTyCon = voidTyCon
, wrapTyCon = wrapTyCon
- , enumerationTyCon = enumerationTyCon
+ , selTys = selTys
+ , selReplicates = selReplicates
+ , selPicks = selPicks
+ , selTagss = selTagss
+ , selEls = selEls
, sumTyCons = sumTyCons
, closureTyCon = closureTyCon
, voidVar = voidVar
- , mkPRVar = mkPRVar
- , mkClosureVar = mkClosureVar
- , applyClosureVar = applyClosureVar
- , mkClosurePVar = mkClosurePVar
- , applyClosurePVar = applyClosurePVar
- , replicatePAIntPrimVar = replicatePAIntPrimVar
- , upToPAIntPrimVar = upToPAIntPrimVar
- , selectPAIntPrimVar = selectPAIntPrimVar
- , truesPABoolPrimVar = truesPABoolPrimVar
- , lengthPAVar = lengthPAVar
- , replicatePAVar = replicatePAVar
- , emptyPAVar = emptyPAVar
- , packPAVar = packPAVar
- , combinePAVars = combinePAVars
+ , pvoidVar = pvoidVar
+ , fromVoidVar = fromVoidVar
+ , punitVar = punitVar
+ , closureVar = closureVar
+ , applyVar = applyVar
+ , liftedClosureVar = liftedClosureVar
+ , liftedApplyVar = liftedApplyVar
+ , replicatePDVar = replicatePDVar
+ , emptyPDVar = emptyPDVar
+ , packByTagPDVar = packByTagPDVar
+ , combinePDVars = combinePDVars
+ , scalarClass = scalarClass
+ , scalarZips = scalarZips
+ , closureCtrFuns = closureCtrFuns
, liftingContext = liftingContext
}
-
+ where
+ modules@(Modules {
+ dph_PArray = dph_PArray
+ , dph_Repr = dph_Repr
+ , dph_Closure = dph_Closure
+ , dph_Selector = dph_Selector
+ , dph_Scalar = dph_Scalar
+ })
+ = dph_Modules pkg
+
+ load get_mod = dsLoadModule doc mod
+ where
+ mod = get_mod modules
+ doc = ppr mod <+> ptext (sLit "is a DPH module")
+
+ -- Make a list of numbered strings in some range, eg foo3, foo4, foo5
+ numbered :: String -> Int -> Int -> [FastString]
+ numbered pfx m n = [mkFastString (pfx ++ show i) | i <- [m..n]]
+
+ mk_elements :: (Int, Int) -> DsM ((Int, Int), CoreExpr)
+ mk_elements (i,j)
+ = do
+ v <- externalVar dph_Selector
+ $ mkFastString ("elementsSel" ++ show i ++ "_" ++ show j ++ "#")
+ return ((i,j), Var v)
+
+
+-- | Get the mapping of names in the Prelude to names in the DPH library.
initBuiltinVars :: Builtins -> DsM [(Var, Var)]
-initBuiltinVars bi
+initBuiltinVars (Builtins { dphModules = mods })
= do
uvars <- zipWithM externalVar umods ufs
vvars <- zipWithM externalVar vmods vfs
+ cvars <- zipWithM externalVar cmods cfs
return $ [(v,v) | v <- map dataConWorkId defaultDataConWorkers]
+ ++ zip (map dataConWorkId cons) cvars
++ zip uvars vvars
where
- (umods, ufs, vmods, vfs) = unzip4 preludeVars
+ (umods, ufs, vmods, vfs) = unzip4 (preludeVars mods)
+ (cons, cmods, cfs) = unzip3 (preludeDataCons mods)
defaultDataConWorkers :: [DataCon]
-defaultDataConWorkers = [trueDataCon, falseDataCon]
-
-preludeVars :: [(Module, FastString, Module, FastString)]
-preludeVars
- = [
- mk nDP_PRELUDE_PARR FSLIT("mapP") nDP_COMBINATORS FSLIT("mapPA")
- , mk nDP_PRELUDE_INT FSLIT("plus") nDP_PRELUDE_INT FSLIT("plusV")
- , mk nDP_PRELUDE_INT FSLIT("minus") nDP_PRELUDE_INT FSLIT("minusV")
- ]
+defaultDataConWorkers = [trueDataCon, falseDataCon, unitDataCon]
+
+preludeDataCons :: Modules -> [(DataCon, Module, FastString)]
+preludeDataCons (Modules { dph_Prelude_Tuple = dph_Prelude_Tuple })
+ = [mk_tup n dph_Prelude_Tuple (mkFastString $ "tup" ++ show n) | n <- [2..3]]
where
- mk = (,,,)
+ mk_tup n mod name = (tupleCon Boxed n, mod, name)
+
+
+-- | Mapping of prelude functions to vectorised versions.
+-- Functions like filterP currently have a working but naive version in GHC.PArr
+-- During vectorisation we replace these by calls to filterPA, which are
+-- defined in dph-common Data.Array.Parallel.Lifted.Combinators
+--
+-- As renamer only sees the GHC.PArr functions, if you want to add a new function
+-- to the vectoriser there has to be a definition for it in GHC.PArr, even though
+-- it will never be used at runtime.
+--
+preludeVars :: Modules -> [(Module, FastString, Module, FastString)]
+preludeVars (Modules { dph_Combinators = dph_Combinators
+ , dph_PArray = dph_PArray
+ , dph_Prelude_Int = dph_Prelude_Int
+ , dph_Prelude_Word8 = dph_Prelude_Word8
+ , dph_Prelude_Double = dph_Prelude_Double
+ , dph_Prelude_Bool = dph_Prelude_Bool
+ , dph_Prelude_PArr = dph_Prelude_PArr
+ })
+
+ -- Functions that work on whole PArrays, defined in GHC.PArr
+ = [ mk gHC_PARR (fsLit "mapP") dph_Combinators (fsLit "mapPA")
+ , mk gHC_PARR (fsLit "zipWithP") dph_Combinators (fsLit "zipWithPA")
+ , mk gHC_PARR (fsLit "zipP") dph_Combinators (fsLit "zipPA")
+ , mk gHC_PARR (fsLit "unzipP") dph_Combinators (fsLit "unzipPA")
+ , mk gHC_PARR (fsLit "filterP") dph_Combinators (fsLit "filterPA")
+ , mk gHC_PARR (fsLit "lengthP") dph_Combinators (fsLit "lengthPA")
+ , mk gHC_PARR (fsLit "replicateP") dph_Combinators (fsLit "replicatePA")
+ , mk gHC_PARR (fsLit "!:") dph_Combinators (fsLit "indexPA")
+ , mk gHC_PARR (fsLit "sliceP") dph_Combinators (fsLit "slicePA")
+ , mk gHC_PARR (fsLit "crossMapP") dph_Combinators (fsLit "crossMapPA")
+ , mk gHC_PARR (fsLit "singletonP") dph_Combinators (fsLit "singletonPA")
+ , mk gHC_PARR (fsLit "concatP") dph_Combinators (fsLit "concatPA")
+ , mk gHC_PARR (fsLit "+:+") dph_Combinators (fsLit "appPA")
+ , mk gHC_PARR (fsLit "emptyP") dph_PArray (fsLit "emptyPA")
+
+ -- Map scalar functions to versions using closures.
+ , mk' dph_Prelude_Int "div" "divV"
+ , mk' dph_Prelude_Int "mod" "modV"
+ , mk' dph_Prelude_Int "sqrt" "sqrtV"
+ , mk' dph_Prelude_Int "enumFromToP" "enumFromToPA"
+ -- , mk' dph_Prelude_Int "upToP" "upToPA"
+ ]
+ ++ vars_Ord dph_Prelude_Int
+ ++ vars_Num dph_Prelude_Int
+
+ ++ vars_Ord dph_Prelude_Word8
+ ++ vars_Num dph_Prelude_Word8
+ ++
+ [ mk' dph_Prelude_Word8 "div" "divV"
+ , mk' dph_Prelude_Word8 "mod" "modV"
+ , mk' dph_Prelude_Word8 "fromInt" "fromIntV"
+ , mk' dph_Prelude_Word8 "toInt" "toIntV"
+ ]
+ ++ vars_Ord dph_Prelude_Double
+ ++ vars_Num dph_Prelude_Double
+ ++ vars_Fractional dph_Prelude_Double
+ ++ vars_Floating dph_Prelude_Double
+ ++ vars_RealFrac dph_Prelude_Double
+ ++
+ [ mk dph_Prelude_Bool (fsLit "andP") dph_Prelude_Bool (fsLit "andPA")
+ , mk dph_Prelude_Bool (fsLit "orP") dph_Prelude_Bool (fsLit "orPA")
+
+ -- FIXME: temporary
+ , mk dph_Prelude_PArr (fsLit "fromPArrayP") dph_Prelude_PArr (fsLit "fromPArrayPA")
+ , mk dph_Prelude_PArr (fsLit "toPArrayP") dph_Prelude_PArr (fsLit "toPArrayPA")
+ , mk dph_Prelude_PArr (fsLit "fromNestedPArrayP") dph_Prelude_PArr (fsLit "fromNestedPArrayPA")
+ , mk dph_Prelude_PArr (fsLit "combineP") dph_Combinators (fsLit "combine2PA")
+ ]
+ where
+ mk = (,,,)
+ mk' mod v v' = mk mod (fsLit v) mod (fsLit v')
+
+ vars_Ord mod
+ = [ mk' mod "==" "eqV"
+ , mk' mod "/=" "neqV"
+ , mk' mod "<=" "leV"
+ , mk' mod "<" "ltV"
+ , mk' mod ">=" "geV"
+ , mk' mod ">" "gtV"
+ , mk' mod "min" "minV"
+ , mk' mod "max" "maxV"
+ , mk' mod "minimumP" "minimumPA"
+ , mk' mod "maximumP" "maximumPA"
+ , mk' mod "minIndexP" "minIndexPA"
+ , mk' mod "maxIndexP" "maxIndexPA"
+ ]
+
+ vars_Num mod
+ = [ mk' mod "+" "plusV"
+ , mk' mod "-" "minusV"
+ , mk' mod "*" "multV"
+ , mk' mod "negate" "negateV"
+ , mk' mod "abs" "absV"
+ , mk' mod "sumP" "sumPA"
+ , mk' mod "productP" "productPA"
+ ]
+
+ vars_Fractional mod
+ = [ mk' mod "/" "divideV"
+ , mk' mod "recip" "recipV"
+ ]
+
+ vars_Floating mod
+ = [ mk' mod "pi" "pi"
+ , mk' mod "exp" "expV"
+ , mk' mod "sqrt" "sqrtV"
+ , mk' mod "log" "logV"
+ , mk' mod "sin" "sinV"
+ , mk' mod "tan" "tanV"
+ , mk' mod "cos" "cosV"
+ , mk' mod "asin" "asinV"
+ , mk' mod "atan" "atanV"
+ , mk' mod "acos" "acosV"
+ , mk' mod "sinh" "sinhV"
+ , mk' mod "tanh" "tanhV"
+ , mk' mod "cosh" "coshV"
+ , mk' mod "asinh" "asinhV"
+ , mk' mod "atanh" "atanhV"
+ , mk' mod "acosh" "acoshV"
+ , mk' mod "**" "powV"
+ , mk' mod "logBase" "logBaseV"
+ ]
+
+ vars_RealFrac mod
+ = [ mk' mod "fromInt" "fromIntV"
+ , mk' mod "truncate" "truncateV"
+ , mk' mod "round" "roundV"
+ , mk' mod "ceiling" "ceilingV"
+ , mk' mod "floor" "floorV"
+ ]
+
+
+-- | Get a list of names to `TyCon`s in the mock prelude.
initBuiltinTyCons :: Builtins -> DsM [(Name, TyCon)]
initBuiltinTyCons bi
= do
- parr <- externalTyCon nDP_PRELUDE_PARR FSLIT("PArr")
+ -- parr <- externalTyCon dph_Prelude_PArr (fsLit "PArr")
+ dft_tcs <- defaultTyCons
return $ (tyConName funTyCon, closureTyCon bi)
- : (tyConName parr, parrayTyCon bi)
- : [(tyConName tc, tc) | tc <- defaultTyCons]
+ : (parrTyConName, parrayTyCon bi)
+
+ -- FIXME: temporary
+ : (tyConName $ parrayTyCon bi, parrayTyCon bi)
-defaultTyCons :: [TyCon]
-defaultTyCons = [intTyCon, boolTyCon]
+ : [(tyConName tc, tc) | tc <- dft_tcs]
+defaultTyCons :: DsM [TyCon]
+defaultTyCons
+ = do
+ word8 <- dsLookupTyCon word8TyConName
+ return [intTyCon, boolTyCon, doubleTyCon, word8]
+
+
+-- | Get a list of names to `DataCon`s in the mock prelude.
initBuiltinDataCons :: Builtins -> [(Name, DataCon)]
-initBuiltinDataCons bi = [(dataConName dc, dc)| dc <- defaultDataCons]
+initBuiltinDataCons _ = [(dataConName dc, dc)| dc <- defaultDataCons]
defaultDataCons :: [DataCon]
-defaultDataCons = [trueDataCon, falseDataCon]
+defaultDataCons = [trueDataCon, falseDataCon, unitDataCon]
-initBuiltinDicts :: [(Name, Module, FastString)] -> DsM [(Name, Var)]
-initBuiltinDicts ps
- = do
- dicts <- zipWithM externalVar mods fss
- return $ zip tcs dicts
- where
- (tcs, mods, fss) = unzip3 ps
-initBuiltinPAs = initBuiltinDicts . builtinPAs
+-- | Get the names of all buildin instance functions for the PA class.
+initBuiltinPAs :: Builtins -> (InstEnv, InstEnv) -> DsM [(Name, Var)]
+initBuiltinPAs (Builtins { dphModules = mods }) insts
+ = liftM (initBuiltinDicts insts) (externalClass (dph_PArray mods) (fsLit "PA"))
-builtinPAs :: Builtins -> [(Name, Module, FastString)]
-builtinPAs bi
- = [
- mk (tyConName $ closureTyCon bi) nDP_CLOSURE FSLIT("dPA_Clo")
- , mk (tyConName $ voidTyCon bi) nDP_REPR FSLIT("dPA_Void")
- , mk (tyConName $ parrayTyCon bi) nDP_INSTANCES FSLIT("dPA_PArray")
- , mk unitTyConName nDP_INSTANCES FSLIT("dPA_Unit")
- , mk intTyConName nDP_INSTANCES FSLIT("dPA_Int")
- , mk boolTyConName nDP_INSTANCES FSLIT("dPA_Bool")
- ]
- ++ tups
- where
- mk name mod fs = (name, mod, fs)
-
- tups = map mk_tup [2..3]
- mk_tup n = mk (tyConName $ tupleTyCon Boxed n)
- nDP_INSTANCES
- (mkFastString $ "dPA_" ++ show n)
-
-initBuiltinPRs = initBuiltinDicts . builtinPRs
-
-builtinPRs :: Builtins -> [(Name, Module, FastString)]
-builtinPRs bi =
- [
- mk (tyConName unitTyCon) nDP_REPR FSLIT("dPR_Unit")
- , mk (tyConName $ voidTyCon bi) nDP_REPR FSLIT("dPR_Void")
- , mk (tyConName $ wrapTyCon bi) nDP_REPR FSLIT("dPR_Wrap")
- , mk (tyConName $ enumerationTyCon bi) nDP_REPR FSLIT("dPR_Enumeration")
- , mk (tyConName $ closureTyCon bi) nDP_CLOSURE FSLIT("dPR_Clo")
-
- -- temporary
- , mk intTyConName nDP_INSTANCES FSLIT("dPR_Int")
- ]
-
- ++ map mk_sum [2..mAX_NDP_SUM]
- ++ map mk_prod [2..mAX_NDP_PROD]
- where
- mk name mod fs = (name, mod, fs)
+-- | Get the names of all builtin instance functions for the PR class.
+initBuiltinPRs :: Builtins -> (InstEnv, InstEnv) -> DsM [(Name, Var)]
+initBuiltinPRs (Builtins { dphModules = mods }) insts
+ = liftM (initBuiltinDicts insts) (externalClass (dph_PArray mods) (fsLit "PR"))
+
- mk_sum n = (tyConName $ sumTyCon n bi, nDP_REPR,
- mkFastString ("dPR_Sum" ++ show n))
+-- | Get the names of all DPH instance functions for this class.
+initBuiltinDicts :: (InstEnv, InstEnv) -> Class -> [(Name, Var)]
+initBuiltinDicts insts cls = map find $ classInstances insts cls
+ where
+ find i | [Just tc] <- instanceRoughTcs i = (tc, instanceDFunId i)
+ | otherwise = pprPanic "Invalid DPH instance" (ppr i)
- mk_prod n = (tyConName $ prodTyCon n bi, nDP_REPR,
- mkFastString ("dPR_" ++ show n))
+-- | Get a list of boxed `TyCons` in the mock prelude. This is Int only.
initBuiltinBoxedTyCons :: Builtins -> DsM [(Name, TyCon)]
initBuiltinBoxedTyCons = return . builtinBoxedTyCons
builtinBoxedTyCons :: Builtins -> [(Name, TyCon)]
-builtinBoxedTyCons bi =
- [(tyConName intPrimTyCon, intTyCon)]
+builtinBoxedTyCons _
+ = [(tyConName intPrimTyCon, intTyCon)]
+
+
+-- | Get a list of all scalar functions in the mock prelude.
+initBuiltinScalars :: Builtins -> DsM [Var]
+initBuiltinScalars bi
+ = mapM (uncurry externalVar) (preludeScalars $ dphModules bi)
+
+preludeScalars :: Modules -> [(Module, FastString)]
+preludeScalars (Modules { dph_Prelude_Int = dph_Prelude_Int
+ , dph_Prelude_Word8 = dph_Prelude_Word8
+ , dph_Prelude_Double = dph_Prelude_Double
+ })
+ = [ mk dph_Prelude_Int "div"
+ , mk dph_Prelude_Int "mod"
+ , mk dph_Prelude_Int "sqrt"
+ ]
+ ++ scalars_Ord dph_Prelude_Int
+ ++ scalars_Num dph_Prelude_Int
+
+ ++ scalars_Ord dph_Prelude_Word8
+ ++ scalars_Num dph_Prelude_Word8
+ ++
+ [ mk dph_Prelude_Word8 "div"
+ , mk dph_Prelude_Word8 "mod"
+ , mk dph_Prelude_Word8 "fromInt"
+ , mk dph_Prelude_Word8 "toInt"
+ ]
+
+ ++ scalars_Ord dph_Prelude_Double
+ ++ scalars_Num dph_Prelude_Double
+ ++ scalars_Fractional dph_Prelude_Double
+ ++ scalars_Floating dph_Prelude_Double
+ ++ scalars_RealFrac dph_Prelude_Double
+ where
+ mk mod s = (mod, fsLit s)
+
+ scalars_Ord mod
+ = [ mk mod "=="
+ , mk mod "/="
+ , mk mod "<="
+ , mk mod "<"
+ , mk mod ">="
+ , mk mod ">"
+ , mk mod "min"
+ , mk mod "max"
+ ]
+
+ scalars_Num mod
+ = [ mk mod "+"
+ , mk mod "-"
+ , mk mod "*"
+ , mk mod "negate"
+ , mk mod "abs"
+ ]
+
+ scalars_Fractional mod
+ = [ mk mod "/"
+ , mk mod "recip"
+ ]
+
+ scalars_Floating mod
+ = [ mk mod "pi"
+ , mk mod "exp"
+ , mk mod "sqrt"
+ , mk mod "log"
+ , mk mod "sin"
+ , mk mod "tan"
+ , mk mod "cos"
+ , mk mod "asin"
+ , mk mod "atan"
+ , mk mod "acos"
+ , mk mod "sinh"
+ , mk mod "tanh"
+ , mk mod "cosh"
+ , mk mod "asinh"
+ , mk mod "atanh"
+ , mk mod "acosh"
+ , mk mod "**"
+ , mk mod "logBase"
+ ]
+
+ scalars_RealFrac mod
+ = [ mk mod "fromInt"
+ , mk mod "truncate"
+ , mk mod "round"
+ , mk mod "ceiling"
+ , mk mod "floor"
+ ]
+
+
+-- | Lookup some variable given its name and the module that contains it.
externalVar :: Module -> FastString -> DsM Var
externalVar mod fs
= dsLookupGlobalId =<< lookupOrig mod (mkVarOccFS fs)
+
+-- | Like `externalVar` but wrap the `Var` in a `CoreExpr`
+externalFun :: Module -> FastString -> DsM CoreExpr
+externalFun mod fs
+ = do var <- externalVar mod fs
+ return $ Var var
+
+
+-- | Lookup some `TyCon` given its name and the module that contains it.
externalTyCon :: Module -> FastString -> DsM TyCon
externalTyCon mod fs
- = dsLookupTyCon =<< lookupOrig mod (mkOccNameFS tcName fs)
+ = dsLookupTyCon =<< lookupOrig mod (mkTcOccFS fs)
-unitTyConName = tyConName unitTyCon
+-- | Lookup some `Type` given its name and the module that contains it.
+externalType :: Module -> FastString -> DsM Type
+externalType mod fs
+ = do tycon <- externalTyCon mod fs
+ return $ mkTyConApp tycon []
-primMethod :: TyCon -> String -> DsM (Maybe Var)
-primMethod tycon method
+
+-- | Lookup some `Class` given its name and the module that contains it.
+externalClass :: Module -> FastString -> DsM Class
+externalClass mod fs
+ = dsLookupClass =<< lookupOrig mod (mkClsOccFS fs)
+
+
+-- | Like `externalClass`, but get the TyCon of of the class.
+externalClassTyCon :: Module -> FastString -> DsM TyCon
+externalClassTyCon mod fs = liftM classTyCon (externalClass mod fs)
+
+
+-- | Lookup a method function given its name and instance type.
+primMethod :: TyCon -> String -> Builtins -> DsM (Maybe Var)
+primMethod tycon method (Builtins { dphModules = mods })
| Just suffix <- lookupNameEnv prim_ty_cons (tyConName tycon)
= liftM Just
- $ dsLookupGlobalId =<< lookupOrig nDP_PRIM (mkVarOcc $ method ++ suffix)
+ $ dsLookupGlobalId =<< lookupOrig (dph_Unboxed mods)
+ (mkVarOcc $ method ++ suffix)
| otherwise = return Nothing
-primPArray :: TyCon -> DsM (Maybe TyCon)
-primPArray tycon
+-- | Lookup the representation type we use for PArrays that contain a given element type.
+primPArray :: TyCon -> Builtins -> DsM (Maybe TyCon)
+primPArray tycon (Builtins { dphModules = mods })
| Just suffix <- lookupNameEnv prim_ty_cons (tyConName tycon)
= liftM Just
- $ dsLookupTyCon =<< lookupOrig nDP_PRIM (mkOccName tcName $ "PArray" ++ suffix)
+ $ dsLookupTyCon =<< lookupOrig (dph_Unboxed mods)
+ (mkTcOcc $ "PArray" ++ suffix)
| otherwise = return Nothing
+prim_ty_cons :: NameEnv String
prim_ty_cons = mkNameEnv [mk_prim intPrimTyCon]
where
mk_prim tycon = (tyConName tycon, '_' : getOccString tycon)
+
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