From: Matthijs Kooijman Date: Thu, 25 Jun 2009 14:58:57 +0000 (+0200) Subject: Merge git://github.com/darchon/clash into cλash X-Git-Url: https://git.stderr.nl/gitweb?p=matthijs%2Fmaster-project%2Fc%CE%BBash.git;a=commitdiff_plain;h=59b710f483534efd4a293f880235f444a5156451 Merge git://github.com/darchon/clash into cλash Disabled foldr generation again, it should either be updated to the shorter form from my last commits, but preferably foldl should be abstracted to handle both. * git://github.com/darchon/clash: Added builtin function foldr Foldl correctly handles empty vectors Conflicts: Generate.hs GlobalNameTable.hs --- 59b710f483534efd4a293f880235f444a5156451 diff --cc Generate.hs index 1c3edaa,fe58172..b1aa491 --- a/Generate.hs +++ b/Generate.hs @@@ -134,127 -136,150 +134,207 @@@ genZipWith' (Left res) f args@[zipped_f genFoldl :: BuiltinBuilder genFoldl = genVarArgs genFoldl' -genFoldl' resVal f [folded_f, startVal, inVec] = do - signatures <- getA vsSignatures - let entity = Maybe.fromMaybe - (error $ "Using function '" ++ (varToString folded_f) ++ "' without signature? This should not happen!") - (Map.lookup folded_f signatures) - let (vec, _) = splitAppTy (Var.varType inVec) - let vecty = Type.mkAppTy vec (Var.varType startVal) - vecType <- vhdl_ty vecty +genFoldl' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> VHDLSession [AST.ConcSm] ++-- Special case for an empty input vector, just assign start to res ++genFoldl' (Left res) _ [_, start, vec] | len == 0 = return [mkUncondAssign (Left res) (varToVHDLExpr start)] ++ where len = (tfvec_len . Var.varType) vec +genFoldl' (Left res) f [folded_f, start, vec] = do + -- evec is (TFVec n), so it still needs an element type + let (nvec, _) = splitAppTy (Var.varType vec) + -- Put the type of the start value in nvec, this will be the type of our + -- temporary vector + let tmp_ty = Type.mkAppTy nvec (Var.varType start) + tmp_vhdl_ty <- vhdl_ty tmp_ty -- Setup the generate scheme - let len = (tfvec_len . Var.varType) inVec - let genlabel = mkVHDLExtId ("foldlVector" ++ (varToString inVec)) - let blockLabel = mkVHDLExtId ("foldlVector" ++ (varToString startVal)) - let range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1)) - let genScheme = AST.ForGn (AST.unsafeVHDLBasicId "n") range + let gen_label = mkVHDLExtId ("foldlVector" ++ (varToString vec)) + let block_label = mkVHDLExtId ("foldlVector" ++ (varToString start)) + let gen_range = AST.ToRange (AST.PrimLit "0") len_min_expr + let gen_scheme = AST.ForGn n_id gen_range -- Make the intermediate vector - let tmpId = mkVHDLExtId "tmp" - let tmpVec = AST.BDISD $ AST.SigDec tmpId vecType Nothing - -- Get the entity name and port names - let entity_id = ent_id entity - let argports = map (Monad.liftM fst) (ent_args entity) - let resport = (Monad.liftM fst) (ent_res entity) - -- Generate the output assignment - let assign = [mkUncondAssign (Left resVal) (AST.PrimName (AST.NIndexed (AST.IndexedName - (AST.NSimple tmpId) [AST.PrimLit $ show (len-1)])))] - -- Return the generate functions - let genSm = AST.CSGSm $ AST.GenerateSm genlabel genScheme [] - [ AST.CSGSm (genFirstCell (entity_id, argports, resport) - [startVal, inVec, resVal]) - , AST.CSGSm (genOtherCell (entity_id, argports, resport) - [startVal, inVec, resVal]) - ] - return $ if len > 0 then - [AST.CSBSm $ AST.BlockSm blockLabel [] (AST.PMapAspect []) [tmpVec] (genSm : assign)] - else - [mkUncondAssign (Left resVal) (AST.PrimName $ AST.NSimple (varToVHDLId startVal))] + let tmp_dec = AST.BDISD $ AST.SigDec tmp_id tmp_vhdl_ty Nothing + -- Create the generate statement + cells <- sequence [genFirstCell, genOtherCell] + let gen_sm = AST.GenerateSm gen_label gen_scheme [] (map AST.CSGSm cells) + -- Assign tmp[len-1] to res + let out_assign = mkUncondAssign (Left res) $ vhdlNameToVHDLExpr (mkIndexedName tmp_name (AST.PrimLit $ show (len-1))) + let block = AST.BlockSm block_label [] (AST.PMapAspect []) [tmp_dec] [AST.CSGSm gen_sm, out_assign] + return [AST.CSBSm block] where - genFirstCell (entity_id, argports, resport) [startVal, inVec, resVal] = cellGn - where - cellLabel = mkVHDLExtId "firstcell" - cellGenScheme = AST.IfGn ((AST.PrimName $ AST.NSimple nPar) AST.:=: (AST.PrimLit "0")) - tmpId = mkVHDLExtId "tmp" - nPar = AST.unsafeVHDLBasicId "n" - -- Assign the ports - inport1 = mkAssocElem (argports!!0) (varToString startVal) - inport2 = mkAssocElemIndexed (argports!!1) (varToVHDLId inVec) nPar - outport = mkAssocElemIndexed resport tmpId nPar - portassigns = Maybe.catMaybes [inport1,inport2,outport] - -- Generate the portmap - mapLabel = "cell" ++ (AST.fromVHDLId entity_id) - compins = mkComponentInst mapLabel entity_id portassigns - -- Return the generate functions - cellGn = AST.GenerateSm cellLabel cellGenScheme [] [compins] - genOtherCell (entity_id, argports, resport) [startVal, inVec, resVal] = cellGn - where - len = (tfvec_len . Var.varType) inVec - cellLabel = mkVHDLExtId "othercell" - cellGenScheme = AST.IfGn ((AST.PrimName $ AST.NSimple nPar) AST.:/=: (AST.PrimLit "0")) - -- ((AST.PrimName $ AST.NSimple nPar) AST.:<: (AST.PrimLit $ show (len-1))) - tmpId = mkVHDLExtId "tmp" - nPar = AST.unsafeVHDLBasicId "n" - -- Assign the ports - inport1 = mkAssocElemIndexed (argports!!0) tmpId (AST.unsafeVHDLBasicId "n-1") - inport2 = mkAssocElemIndexed (argports!!1) (varToVHDLId inVec) nPar - outport = mkAssocElemIndexed resport tmpId nPar - portassigns = Maybe.catMaybes [inport1,inport2,outport] - -- Generate the portmap - mapLabel = "cell" ++ (AST.fromVHDLId entity_id) - compins = mkComponentInst mapLabel entity_id portassigns - -- Return the generate functions - cellGn = AST.GenerateSm cellLabel cellGenScheme [] [compins] + -- The vector length + len = (tfvec_len . Var.varType) vec + -- An id for the counter + n_id = mkVHDLBasicId "n" + n_expr = idToVHDLExpr n_id + -- An expression for n-1 + n_min_expr = n_expr AST.:-: (AST.PrimLit "1") + -- An expression for len-1 + len_min_expr = (AST.PrimLit $ show (len-1)) + -- An id for the tmp result vector + tmp_id = mkVHDLBasicId "tmp" + tmp_name = AST.NSimple tmp_id + -- Generate parts of the fold + genFirstCell, genOtherCell :: VHDLSession AST.GenerateSm + genFirstCell = do + let cond_label = mkVHDLExtId "firstcell" + -- if n == 0 + let cond_scheme = AST.IfGn $ n_expr AST.:=: (AST.PrimLit "0") + -- Output to tmp[n] + let resname = mkIndexedName tmp_name n_expr + -- Input from start + let argexpr1 = varToVHDLExpr start + -- Input from vec[n] + let argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName vec) n_expr + app_concsms <- genApplication (Right resname) folded_f [Right argexpr1, Right argexpr2] + -- Return the conditional generate part + return $ AST.GenerateSm cond_label cond_scheme [] app_concsms + + genOtherCell = do + let cond_label = mkVHDLExtId "othercell" + -- if n > 0 + let cond_scheme = AST.IfGn $ n_expr AST.:>: (AST.PrimLit "0") + -- Output to tmp[n] + let resname = mkIndexedName tmp_name n_expr + -- Input from tmp[n-1] + let argexpr1 = vhdlNameToVHDLExpr $ mkIndexedName tmp_name n_min_expr + -- Input from vec[n] + let argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName vec) n_expr + app_concsms <- genApplication (Right resname) folded_f [Right argexpr1, Right argexpr2] + -- Return the conditional generate part + return $ AST.GenerateSm cond_label cond_scheme [] app_concsms ++{- + genFoldr :: BuiltinBuilder + genFoldr = genVarArgs genFoldr' + genFoldr' resVal f [folded_f, startVal, inVec] = do + signatures <- getA vsSignatures + let entity = Maybe.fromMaybe + (error $ "Using function '" ++ (varToString folded_f) ++ "' without signature? This should not happen!") + (Map.lookup folded_f signatures) + let (vec, _) = splitAppTy (Var.varType inVec) + let vecty = Type.mkAppTy vec (Var.varType startVal) + vecType <- vhdl_ty vecty + -- Setup the generate scheme + let len = (tfvec_len . Var.varType) inVec + let genlabel = mkVHDLExtId ("foldrVector" ++ (varToString inVec)) + let blockLabel = mkVHDLExtId ("foldrVector" ++ (varToString startVal)) + let range = AST.DownRange (AST.PrimLit $ show (len-1)) (AST.PrimLit "0") + let genScheme = AST.ForGn (AST.unsafeVHDLBasicId "n") range + -- Make the intermediate vector + let tmpId = mkVHDLExtId "tmp" + let tmpVec = AST.BDISD $ AST.SigDec tmpId vecType Nothing + -- Get the entity name and port names + let entity_id = ent_id entity + let argports = map (Monad.liftM fst) (ent_args entity) + let resport = (Monad.liftM fst) (ent_res entity) + -- Generate the output assignment + let assign = [mkUncondAssign (Left resVal) (AST.PrimName (AST.NIndexed (AST.IndexedName + (AST.NSimple tmpId) [AST.PrimLit "0"])))] + -- Return the generate functions + let genSm = AST.CSGSm $ AST.GenerateSm genlabel genScheme [] + [ AST.CSGSm (genFirstCell len (entity_id, argports, resport) + [startVal, inVec, resVal]) + , AST.CSGSm (genOtherCell len (entity_id, argports, resport) + [startVal, inVec, resVal]) + ] + return $ if len > 0 then + [AST.CSBSm $ AST.BlockSm blockLabel [] (AST.PMapAspect []) [tmpVec] (genSm : assign)] + else + [mkUncondAssign (Left resVal) (AST.PrimName $ AST.NSimple (varToVHDLId startVal))] + where + genFirstCell len (entity_id, argports, resport) [startVal, inVec, resVal] = cellGn + where + cellLabel = mkVHDLExtId "firstcell" + cellGenScheme = AST.IfGn ((AST.PrimName $ AST.NSimple nPar) AST.:=: (AST.PrimLit $ show (len-1))) + tmpId = mkVHDLExtId "tmp" + nPar = AST.unsafeVHDLBasicId "n" + -- Assign the ports + inport1 = mkAssocElem (argports!!0) (varToString startVal) + inport2 = mkAssocElemIndexed (argports!!1) (varToVHDLId inVec) nPar + outport = mkAssocElemIndexed resport tmpId nPar + portassigns = Maybe.catMaybes [inport1,inport2,outport] + -- Generate the portmap + mapLabel = "cell" ++ (AST.fromVHDLId entity_id) + compins = mkComponentInst mapLabel entity_id portassigns + -- Return the generate functions + cellGn = AST.GenerateSm cellLabel cellGenScheme [] [compins] + genOtherCell len (entity_id, argports, resport) [startVal, inVec, resVal] = cellGn + where + len = (tfvec_len . Var.varType) inVec + cellLabel = mkVHDLExtId "othercell" + cellGenScheme = AST.IfGn ((AST.PrimName $ AST.NSimple nPar) AST.:/=: (AST.PrimLit $ show (len-1))) + -- ((AST.PrimName $ AST.NSimple nPar) AST.:<: (AST.PrimLit $ show (len-1))) + tmpId = mkVHDLExtId "tmp" + nPar = AST.unsafeVHDLBasicId "n" + -- Assign the ports + inport1 = mkAssocElemIndexed (argports!!0) tmpId (AST.unsafeVHDLBasicId "n+1") + inport2 = mkAssocElemIndexed (argports!!1) (varToVHDLId inVec) nPar + outport = mkAssocElemIndexed resport tmpId nPar + portassigns = Maybe.catMaybes [inport1,inport2,outport] + -- Generate the portmap + mapLabel = "cell" ++ (AST.fromVHDLId entity_id) + compins = mkComponentInst mapLabel entity_id portassigns + -- Return the generate functions + cellGn = AST.GenerateSm cellLabel cellGenScheme [] [compins] + ++-} ++ ++ +----------------------------------------------------------------------------- +-- Function to generate VHDL for applications +----------------------------------------------------------------------------- +genApplication :: + (Either CoreSyn.CoreBndr AST.VHDLName) -- ^ Where to store the result? + -> CoreSyn.CoreBndr -- ^ The function to apply + -> [Either CoreSyn.CoreExpr AST.Expr] -- ^ The arguments to apply + -> VHDLSession [AST.ConcSm] -- ^ The resulting concurrent statements +genApplication dst f args = + case Var.globalIdVarDetails f of + IdInfo.DataConWorkId dc -> case dst of + -- It's a datacon. Create a record from its arguments. + Left bndr -> do + -- We have the bndr, so we can get at the type + labels <- getFieldLabels (Var.varType bndr) + return $ zipWith mkassign labels $ map (either exprToVHDLExpr id) args + where + mkassign :: AST.VHDLId -> AST.Expr -> AST.ConcSm + mkassign label arg = + let sel_name = mkSelectedName ((either varToVHDLName id) dst) label in + mkUncondAssign (Right sel_name) arg + Right _ -> error $ "Generate.genApplication Can't generate dataconstructor application without an original binder" + IdInfo.VanillaGlobal -> do + -- It's a global value imported from elsewhere. These can be builtin + -- functions. Look up the function name in the name table and execute + -- the associated builder if there is any and the argument count matches + -- (this should always be the case if it typechecks, but just to be + -- sure...). + case (Map.lookup (varToString f) globalNameTable) of + Just (arg_count, builder) -> + if length args == arg_count then + builder dst f args + else + error $ "Generate.genApplication Incorrect number of arguments to builtin function: " ++ pprString f ++ " Args: " ++ show args + Nothing -> error $ "Using function from another module that is not a known builtin: " ++ pprString f + IdInfo.NotGlobalId -> do + signatures <- getA vsSignatures + -- This is a local id, so it should be a function whose definition we + -- have and which can be turned into a component instantiation. + let + signature = Maybe.fromMaybe + (error $ "Using function '" ++ (varToString f) ++ "' without signature? This should not happen!") + (Map.lookup f signatures) + entity_id = ent_id signature + -- TODO: Using show here isn't really pretty, but we'll need some + -- unique-ish value... + label = "comp_ins_" ++ (either show show) dst + portmaps = mkAssocElems (map (either exprToVHDLExpr id) args) ((either varToVHDLName id) dst) signature + in + return [mkComponentInst label entity_id portmaps] + details -> error $ "Calling unsupported function " ++ pprString f ++ " with GlobalIdDetails " ++ pprString details + +----------------------------------------------------------------------------- +-- Functions to generate functions dealing with vectors. +----------------------------------------------------------------------------- + -- Returns the VHDLId of the vector function with the given name for the given -- element type. Generates -- this function if needed. vectorFunId :: Type.Type -> String -> VHDLSession AST.VHDLId @@@ -463,32 -488,3 +543,33 @@@ genUnconsVectorFuns elemTM vectorTM (AST.PrimName $ AST.NSimple aPar)]) -- return res copyExpr = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId) + +----------------------------------------------------------------------------- +-- A table of builtin functions +----------------------------------------------------------------------------- + +-- | The builtin functions we support. Maps a name to an argument count and a +-- builder function. +globalNameTable :: NameTable +globalNameTable = Map.fromList + [ (exId , (2, genFCall ) ) + , (replaceId , (3, genFCall ) ) + , (headId , (1, genFCall ) ) + , (lastId , (1, genFCall ) ) + , (tailId , (1, genFCall ) ) + , (initId , (1, genFCall ) ) + , (takeId , (2, genFCall ) ) + , (dropId , (2, genFCall ) ) + , (plusgtId , (2, genFCall ) ) + , (mapId , (2, genMap ) ) + , (zipWithId , (3, genZipWith ) ) + , (foldlId , (3, genFoldl ) ) ++ --, (foldrId , (3, genFoldr ) ) + , (emptyId , (0, genFCall ) ) + , (singletonId , (1, genFCall ) ) + , (copyId , (2, genFCall ) ) + , (hwxorId , (2, genOperator2 AST.Xor ) ) + , (hwandId , (2, genOperator2 AST.And ) ) + , (hworId , (2, genOperator2 AST.Or ) ) + , (hwnotId , (1, genOperator1 AST.Not ) ) + ]