module Generate where
-
+
+-- Standard modules
+import qualified Control.Monad as Monad
+import qualified Data.Map as Map
+import qualified Maybe
+import Data.Accessor
+
+-- ForSyDe
import qualified ForSyDe.Backend.VHDL.AST as AST
+
+-- GHC API
+import CoreSyn
+import Type
+import qualified Var
+
+-- Local imports
import Constants
+import VHDLTypes
+import VHDLTools
+import CoreTools
-- | Generate a binary operator application. The first argument should be a
-- constructor from the AST.Expr type, e.g. AST.And.
-genExprOp2 :: (AST.Expr -> AST.Expr -> AST.Expr) -> [AST.Expr] -> AST.Expr
-genExprOp2 op [arg1, arg2] = op arg1 arg2
+genExprOp2 :: (AST.Expr -> AST.Expr -> AST.Expr) -> CoreSyn.CoreBndr -> [AST.Expr] -> VHDLSession AST.Expr
+genExprOp2 op res [arg1, arg2] = return $ op arg1 arg2
-- | Generate a unary operator application
-genExprOp1 :: (AST.Expr -> AST.Expr) -> [AST.Expr] -> AST.Expr
-genExprOp1 op [arg] = op arg
+genExprOp1 :: (AST.Expr -> AST.Expr) -> CoreSyn.CoreBndr -> [AST.Expr] -> VHDLSession AST.Expr
+genExprOp1 op res [arg] = return $ op arg
--- | Generate a function call from the Function Name and a list of expressions
--- (its arguments)
-genExprFCall :: AST.VHDLId -> [AST.Expr] -> AST.Expr
-genExprFCall fName args =
- AST.PrimFCall $ AST.FCall (AST.NSimple fName) $
+-- | Generate a function call from the destination binder, function name and a
+-- list of expressions (its arguments)
+genExprFCall :: String -> CoreSyn.CoreBndr -> [AST.Expr] -> VHDLSession AST.Expr
+genExprFCall fname res args = do
+ let el_ty = (tfvec_elem . Var.varType) res
+ id <- vectorFunId el_ty fname
+ return $ AST.PrimFCall $ AST.FCall (AST.NSimple id) $
map (\exp -> Nothing AST.:=>: AST.ADExpr exp) args
+-- | Generate a generate statement for the builtin function "map"
+genMapCall ::
+ Entity -- | The entity to map
+ -> [CoreSyn.CoreBndr] -- | The vectors
+ -> VHDLSession AST.GenerateSm -- | The resulting generate statement
+genMapCall entity [arg, res] = return $ genSm
+ where
+ -- Setup the generate scheme
+ len = (tfvec_len . Var.varType) res
+ label = mkVHDLExtId ("mapVector" ++ (varToString res))
+ nPar = AST.unsafeVHDLBasicId "n"
+ range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1))
+ genScheme = AST.ForGn nPar range
+ -- Get the entity name and port names
+ entity_id = ent_id entity
+ argport = map (Monad.liftM fst) (ent_args entity)
+ resport = (Monad.liftM fst) (ent_res entity)
+ -- Assign the ports
+ inport = mkAssocElemIndexed (head argport) (varToString arg) nPar
+ outport = mkAssocElemIndexed resport (varToString res) nPar
+ clk_port = mkAssocElem (Just $ mkVHDLExtId "clk") "clk"
+ portassigns = Maybe.catMaybes [inport,outport,clk_port]
+ -- Generate the portmap
+ mapLabel = "map" ++ (AST.fromVHDLId entity_id)
+ compins = mkComponentInst mapLabel entity_id portassigns
+ -- Return the generate functions
+ genSm = AST.GenerateSm label genScheme [] [compins]
+
+-- 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
+vectorFunId el_ty fname = do
+ elemTM <- vhdl_ty el_ty
+ -- TODO: This should not be duplicated from mk_vector_ty. Probably but it in
+ -- the VHDLState or something.
+ let vectorTM = mkVHDLExtId $ "vector_" ++ (AST.fromVHDLId elemTM)
+ typefuns <- getA vsTypeFuns
+ case Map.lookup (OrdType el_ty, fname) typefuns of
+ -- Function already generated, just return it
+ Just (id, _) -> return id
+ -- Function not generated yet, generate it
+ Nothing -> do
+ let functions = genUnconsVectorFuns elemTM vectorTM
+ case lookup fname functions of
+ Just body -> do
+ modA vsTypeFuns $ Map.insert (OrdType el_ty, fname) (function_id, body)
+ return function_id
+ Nothing -> error $ "I don't know how to generate vector function " ++ fname
+ where
+ function_id = mkVHDLExtId fname
+
genUnconsVectorFuns :: AST.TypeMark -- ^ type of the vector elements
-> AST.TypeMark -- ^ type of the vector
- -> [AST.SubProgBody]
+ -> [(String, AST.SubProgBody)]
genUnconsVectorFuns elemTM vectorTM =
- [ AST.SubProgBody exSpec [] [exExpr]
- , AST.SubProgBody replaceSpec [AST.SPVD replaceVar] [replaceExpr,replaceRet]
- , AST.SubProgBody headSpec [] [headExpr]
- , AST.SubProgBody lastSpec [] [lastExpr]
- , AST.SubProgBody initSpec [AST.SPVD initVar] [initExpr, initRet]
- , AST.SubProgBody tailSpec [AST.SPVD tailVar] [tailExpr, tailRet]
- , AST.SubProgBody takeSpec [AST.SPVD takeVar] [takeExpr, takeRet]
- , AST.SubProgBody dropSpec [AST.SPVD dropVar] [dropExpr, dropRet]
+ [ (exId, AST.SubProgBody exSpec [] [exExpr])
+ , (replaceId, AST.SubProgBody replaceSpec [AST.SPVD replaceVar] [replaceExpr,replaceRet])
+ , (headId, AST.SubProgBody headSpec [] [headExpr])
+ , (lastId, AST.SubProgBody lastSpec [] [lastExpr])
+ , (initId, AST.SubProgBody initSpec [AST.SPVD initVar] [initExpr, initRet])
+ , (tailId, AST.SubProgBody tailSpec [AST.SPVD tailVar] [tailExpr, tailRet])
+ , (takeId, AST.SubProgBody takeSpec [AST.SPVD takeVar] [takeExpr, takeRet])
+ , (dropId, AST.SubProgBody dropSpec [AST.SPVD dropVar] [dropExpr, dropRet])
+ , (plusgtId, AST.SubProgBody plusgtSpec [AST.SPVD plusgtVar] [plusgtExpr, plusgtRet])
+ , (emptyId, AST.SubProgBody emptySpec [AST.SPVD emptyVar] [emptyExpr])
+ , (singletonId, AST.SubProgBody singletonSpec [AST.SPVD singletonVar] [singletonRet])
+ , (copyId, AST.SubProgBody copySpec [AST.SPVD copyVar] [copyExpr])
]
where
ixPar = AST.unsafeVHDLBasicId "ix"
iPar = iId
aPar = AST.unsafeVHDLBasicId "a"
resId = AST.unsafeVHDLBasicId "res"
- exSpec = AST.Function exId [AST.IfaceVarDec vecPar vectorTM,
+ exSpec = AST.Function (mkVHDLExtId exId) [AST.IfaceVarDec vecPar vectorTM,
AST.IfaceVarDec ixPar naturalTM] elemTM
exExpr = AST.ReturnSm (Just $ AST.PrimName $ AST.NIndexed
(AST.IndexedName (AST.NSimple vecPar) [AST.PrimName $
AST.NSimple ixPar]))
- replaceSpec = AST.Function replaceId [ AST.IfaceVarDec vecPar vectorTM
+ replaceSpec = AST.Function (mkVHDLExtId replaceId) [ AST.IfaceVarDec vecPar vectorTM
, AST.IfaceVarDec iPar naturalTM
, AST.IfaceVarDec aPar elemTM
] vectorTM
(Just $ AST.ConstraintIndex $ AST.IndexConstraint
[AST.ToRange (AST.PrimLit "0")
(AST.PrimName (AST.NAttribute $
- AST.AttribName (AST.NSimple vecPar) lengthId Nothing) AST.:-:
+ AST.AttribName (AST.NSimple vecPar) (mkVHDLExtId lengthId) Nothing) AST.:-:
(AST.PrimLit "1")) ]))
Nothing
-- res AST.:= vec(0 to i-1) & a & vec(i+1 to length'vec-1)
AST.PrimName (AST.NSimple aPar) AST.:&:
vecSlice (AST.PrimName (AST.NSimple iPar) AST.:+: AST.PrimLit "1")
((AST.PrimName (AST.NAttribute $
- AST.AttribName (AST.NSimple vecPar) lengthId Nothing))
+ AST.AttribName (AST.NSimple vecPar) (mkVHDLExtId lengthId) Nothing))
AST.:-: AST.PrimLit "1"))
replaceRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
vecSlice init last = AST.PrimName (AST.NSlice
(AST.SliceName
(AST.NSimple vecPar)
(AST.ToRange init last)))
- headSpec = AST.Function headId [AST.IfaceVarDec vecPar vectorTM] elemTM
+ headSpec = AST.Function (mkVHDLExtId headId) [AST.IfaceVarDec vecPar vectorTM] elemTM
-- return vec(0);
headExpr = AST.ReturnSm (Just $ (AST.PrimName $ AST.NIndexed (AST.IndexedName
(AST.NSimple vecPar) [AST.PrimLit "0"])))
- lastSpec = AST.Function lastId [AST.IfaceVarDec vecPar vectorTM] elemTM
+ lastSpec = AST.Function (mkVHDLExtId lastId) [AST.IfaceVarDec vecPar vectorTM] elemTM
-- return vec(vec'length-1);
lastExpr = AST.ReturnSm (Just $ (AST.PrimName $ AST.NIndexed (AST.IndexedName
(AST.NSimple vecPar)
[AST.PrimName (AST.NAttribute $
- AST.AttribName (AST.NSimple vecPar) lengthId Nothing)
+ AST.AttribName (AST.NSimple vecPar) (mkVHDLExtId lengthId) Nothing)
AST.:-: AST.PrimLit "1"])))
- initSpec = AST.Function initId [AST.IfaceVarDec vecPar vectorTM] vectorTM
+ initSpec = AST.Function (mkVHDLExtId initId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
-- variable res : fsvec_x (0 to vec'length-2);
initVar =
AST.VarDec resId
(Just $ AST.ConstraintIndex $ AST.IndexConstraint
[AST.ToRange (AST.PrimLit "0")
(AST.PrimName (AST.NAttribute $
- AST.AttribName (AST.NSimple vecPar) lengthId Nothing) AST.:-:
+ AST.AttribName (AST.NSimple vecPar) (mkVHDLExtId lengthId) Nothing) AST.:-:
(AST.PrimLit "2")) ]))
Nothing
-- resAST.:= vec(0 to vec'length-2)
initExpr = AST.NSimple resId AST.:= (vecSlice
(AST.PrimLit "0")
(AST.PrimName (AST.NAttribute $
- AST.AttribName (AST.NSimple vecPar) lengthId Nothing)
+ AST.AttribName (AST.NSimple vecPar) (mkVHDLExtId lengthId) Nothing)
AST.:-: AST.PrimLit "2"))
initRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
- tailSpec = AST.Function tailId [AST.IfaceVarDec vecPar vectorTM] vectorTM
+ tailSpec = AST.Function (mkVHDLExtId tailId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
-- variable res : fsvec_x (0 to vec'length-2);
tailVar =
AST.VarDec resId
(Just $ AST.ConstraintIndex $ AST.IndexConstraint
[AST.ToRange (AST.PrimLit "0")
(AST.PrimName (AST.NAttribute $
- AST.AttribName (AST.NSimple vecPar) lengthId Nothing) AST.:-:
+ AST.AttribName (AST.NSimple vecPar) (mkVHDLExtId lengthId) Nothing) AST.:-:
(AST.PrimLit "2")) ]))
Nothing
-- res AST.:= vec(1 to vec'length-1)
tailExpr = AST.NSimple resId AST.:= (vecSlice
(AST.PrimLit "1")
(AST.PrimName (AST.NAttribute $
- AST.AttribName (AST.NSimple vecPar) lengthId Nothing)
+ AST.AttribName (AST.NSimple vecPar) (mkVHDLExtId lengthId) Nothing)
AST.:-: AST.PrimLit "1"))
tailRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
- takeSpec = AST.Function takeId [AST.IfaceVarDec nPar naturalTM,
+ takeSpec = AST.Function (mkVHDLExtId takeId) [AST.IfaceVarDec nPar naturalTM,
AST.IfaceVarDec vecPar vectorTM ] vectorTM
-- variable res : fsvec_x (0 to n-1);
takeVar =
(vecSlice (AST.PrimLit "1")
(AST.PrimName (AST.NSimple $ nPar) AST.:-: AST.PrimLit "1"))
takeRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
- dropSpec = AST.Function dropId [AST.IfaceVarDec nPar naturalTM,
+ dropSpec = AST.Function (mkVHDLExtId dropId) [AST.IfaceVarDec nPar naturalTM,
AST.IfaceVarDec vecPar vectorTM ] vectorTM
-- variable res : fsvec_x (0 to vec'length-n-1);
dropVar =
(Just $ AST.ConstraintIndex $ AST.IndexConstraint
[AST.ToRange (AST.PrimLit "0")
(AST.PrimName (AST.NAttribute $
- AST.AttribName (AST.NSimple vecPar) lengthId Nothing) AST.:-:
+ AST.AttribName (AST.NSimple vecPar) (mkVHDLExtId lengthId) Nothing) AST.:-:
(AST.PrimName $ AST.NSimple nPar)AST.:-: (AST.PrimLit "1")) ]))
Nothing
-- res AST.:= vec(n to vec'length-1)
dropExpr = AST.NSimple resId AST.:= (vecSlice
(AST.PrimName $ AST.NSimple nPar)
(AST.PrimName (AST.NAttribute $
- AST.AttribName (AST.NSimple vecPar) lengthId Nothing)
+ AST.AttribName (AST.NSimple vecPar) (mkVHDLExtId lengthId) Nothing)
AST.:-: AST.PrimLit "1"))
dropRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
+ plusgtSpec = AST.Function (mkVHDLExtId plusgtId) [AST.IfaceVarDec aPar elemTM,
+ AST.IfaceVarDec vecPar vectorTM] vectorTM
+ -- variable res : fsvec_x (0 to vec'length);
+ plusgtVar =
+ AST.VarDec resId
+ (AST.SubtypeIn vectorTM
+ (Just $ AST.ConstraintIndex $ AST.IndexConstraint
+ [AST.ToRange (AST.PrimLit "0")
+ (AST.PrimName (AST.NAttribute $
+ AST.AttribName (AST.NSimple vecPar) (mkVHDLExtId lengthId) Nothing))]))
+ Nothing
+ plusgtExpr = AST.NSimple resId AST.:=
+ ((AST.PrimName $ AST.NSimple aPar) AST.:&:
+ (AST.PrimName $ AST.NSimple vecPar))
+ plusgtRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
+ emptySpec = AST.Function (mkVHDLExtId emptyId) [] vectorTM
+ emptyVar =
+ AST.VarDec resId
+ (AST.SubtypeIn vectorTM
+ (Just $ AST.ConstraintIndex $ AST.IndexConstraint
+ [AST.ToRange (AST.PrimLit "0")
+ (AST.PrimLit "-1")]))
+ Nothing
+ emptyExpr = AST.ReturnSm (Just $ AST.PrimName (AST.NSimple resId))
+ singletonSpec = AST.Function (mkVHDLExtId singletonId) [AST.IfaceVarDec aPar elemTM ]
+ vectorTM
+ -- variable res : fsvec_x (0 to 0) := (others => a);
+ singletonVar =
+ AST.VarDec resId
+ (AST.SubtypeIn vectorTM
+ (Just $ AST.ConstraintIndex $ AST.IndexConstraint
+ [AST.ToRange (AST.PrimLit "0") (AST.PrimLit "0")]))
+ (Just $ AST.Aggregate [AST.ElemAssoc (Just AST.Others)
+ (AST.PrimName $ AST.NSimple aPar)])
+ singletonRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
+ copySpec = AST.Function (mkVHDLExtId copyId) [AST.IfaceVarDec nPar naturalTM,
+ AST.IfaceVarDec aPar elemTM ] vectorTM
+ -- variable res : fsvec_x (0 to n-1) := (others => a);
+ copyVar =
+ AST.VarDec resId
+ (AST.SubtypeIn vectorTM
+ (Just $ AST.ConstraintIndex $ AST.IndexConstraint
+ [AST.ToRange (AST.PrimLit "0")
+ ((AST.PrimName (AST.NSimple nPar)) AST.:-:
+ (AST.PrimLit "1")) ]))
+ (Just $ AST.Aggregate [AST.ElemAssoc (Just AST.Others)
+ (AST.PrimName $ AST.NSimple aPar)])
+ -- return res
+ copyExpr = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
projects / matthijs / master-project / cλash.git / blobdiff