X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fvectorise%2FVectUtils.hs;h=6207acdc111ccf7e60050f3116b7981ef35b538d;hp=30ce9ace50bed31d04e6ca4af4a3ca02215c79ef;hb=fb6d198f498d4e325a540f28aaa6e1d1530839c3;hpb=3736e30f683990ee94055b60905cce208a467e8b

diff --git a/compiler/vectorise/VectUtils.hs b/compiler/vectorise/VectUtils.hs
index 30ce9ac..6207acd 100644
--- a/compiler/vectorise/VectUtils.hs
+++ b/compiler/vectorise/VectUtils.hs
@@ -5,17 +5,18 @@ module VectUtils (
 
   newLocalVVar,
 
-  mkBuiltinCo, voidType,
+  mkBuiltinCo, voidType, mkWrapType,
   mkPADictType, mkPArrayType, mkPDataType, mkPReprType, mkPArray,
 
   pdataReprTyCon, pdataReprDataCon, mkVScrut,
-  prDFunOfTyCon,
+  prDictOfType, prDFunOfTyCon,
   paDictArgType, paDictOfType, paDFunType,
-  paMethod, mkPR, replicatePD, emptyPD, packPD,
+  paMethod, wrapPR, replicatePD, emptyPD, packPD, packByTagPD,
   combinePD,
   liftPD,
   zipScalars, scalarClosure,
-  polyAbstract, polyApply, polyVApply,
+  polyAbstract, polyApply, polyVApply, polyArity,
+  Inline(..), addInlineArity, inlineMe,
   hoistBinding, hoistExpr, hoistPolyVExpr, takeHoisted,
   buildClosure, buildClosures,
   mkClosureApp
@@ -24,9 +25,10 @@ module VectUtils (
 import VectCore
 import VectMonad
 
-import MkCore ( mkCoreTup, mkCoreTupTy, mkWildCase )
+import MkCore ( mkCoreTup, mkWildCase )
 import CoreSyn
 import CoreUtils
+import CoreUnfold         ( mkInlineRule )
 import Coercion
 import Type
 import TypeRep
@@ -34,6 +36,7 @@ import TyCon
 import DataCon
 import Var
 import MkId               ( unwrapFamInstScrut )
+import Id                 ( setIdUnfolding )
 import TysWiredIn
 import BasicTypes         ( Boxity(..) )
 import Literal            ( Literal, mkMachInt )
@@ -43,7 +46,6 @@ import FastString
 
 import Control.Monad
 
-
 collectAnnTypeArgs :: AnnExpr b ann -> (AnnExpr b ann, [Type])
 collectAnnTypeArgs expr = go expr []
   where
@@ -98,7 +100,10 @@ mkBuiltinTyConApps get_tc tys ty
     mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2]
 
 voidType :: VM Type
-voidType = mkBuiltinTyConApp voidTyCon []
+voidType = mkBuiltinTyConApp VectMonad.voidTyCon []
+
+mkWrapType :: Type -> VM Type
+mkWrapType ty = mkBuiltinTyConApp wrapTyCon [ty]
 
 mkClosureTypes :: [Type] -> Type -> VM Type
 mkClosureTypes = mkBuiltinTyConApps closureTyCon
@@ -215,8 +220,6 @@ paDFunApply dfun tys
       dicts <- mapM paDictOfType tys
       return $ mkApps (mkTyApps dfun tys) dicts
 
-type PAMethod = (Builtins -> Var, String)
-
 paMethod :: (Builtins -> Var) -> String -> Type -> VM CoreExpr
 paMethod _ name ty
   | Just tycon <- splitPrimTyCon ty
@@ -230,12 +233,32 @@ paMethod method _ ty
       dict <- paDictOfType ty
       return $ mkApps (Var fn) [Type ty, dict]
 
-mkPR :: Type -> VM CoreExpr
-mkPR ty
+prDictOfType :: Type -> VM CoreExpr
+prDictOfType ty = prDictOfTyApp ty_fn ty_args
+  where
+    (ty_fn, ty_args) = splitAppTys ty
+
+prDictOfTyApp :: Type -> [Type] -> VM CoreExpr
+prDictOfTyApp ty_fn ty_args
+  | Just ty_fn' <- coreView ty_fn = prDictOfTyApp ty_fn' ty_args
+prDictOfTyApp (TyConApp tc _) ty_args
   = do
-      fn   <- builtin mkPRVar
-      dict <- paDictOfType ty
-      return $ mkApps (Var fn) [Type ty, dict]
+      dfun <- liftM Var $ maybeV (lookupTyConPR tc)
+      prDFunApply dfun ty_args
+prDictOfTyApp _ _ = noV
+
+prDFunApply :: CoreExpr -> [Type] -> VM CoreExpr
+prDFunApply dfun tys
+  = do
+      dicts <- mapM prDictOfType tys
+      return $ mkApps (mkTyApps dfun tys) dicts
+
+wrapPR :: Type -> VM CoreExpr
+wrapPR ty
+  = do
+      pa_dict <- paDictOfType ty
+      pr_dfun <- prDFunOfTyCon =<< builtin wrapTyCon
+      return $ mkApps pr_dfun [Type ty, pa_dict]
 
 replicatePD :: CoreExpr -> CoreExpr -> VM CoreExpr
 replicatePD len x = liftM (`mkApps` [len,x])
@@ -248,6 +271,12 @@ packPD :: Type -> CoreExpr -> CoreExpr -> CoreExpr -> VM CoreExpr
 packPD ty xs len sel = liftM (`mkApps` [xs, len, sel])
                              (paMethod packPDVar "packPD" ty)
 
+packByTagPD :: Type -> CoreExpr -> CoreExpr -> CoreExpr -> CoreExpr
+                 -> VM CoreExpr
+packByTagPD ty xs len tags t
+  = liftM (`mkApps` [xs, len, tags, t])
+          (paMethod packByTagPDVar "packByTagPD" ty)
+
 combinePD :: Type -> CoreExpr -> CoreExpr -> [CoreExpr]
           -> VM CoreExpr
 combinePD ty len sel xs
@@ -288,13 +317,14 @@ newLocalVVar fs vty
       lv  <- newLocalVar fs lty
       return (vv,lv)
 
-polyAbstract :: [TyVar] -> ((CoreExpr -> CoreExpr) -> VM a) -> VM a
+polyAbstract :: [TyVar] -> ([Var] -> VM a) -> VM a
 polyAbstract tvs p
   = localV
   $ do
       mdicts <- mapM mk_dict_var tvs
-      zipWithM_ (\tv -> maybe (defLocalTyVar tv) (defLocalTyVarWithPA tv . Var)) tvs mdicts
-      p (mk_lams mdicts)
+      zipWithM_ (\tv -> maybe (defLocalTyVar tv)
+                              (defLocalTyVarWithPA tv . Var)) tvs mdicts
+      p (mk_args mdicts)
   where
     mk_dict_var tv = do
                        r <- paDictArgType tv
@@ -302,7 +332,12 @@ polyAbstract tvs p
                          Just ty -> liftM Just (newLocalVar (fsLit "dPA") ty)
                          Nothing -> return Nothing
 
-    mk_lams mdicts = mkLams (tvs ++ [dict | Just dict <- mdicts])
+    mk_args mdicts = [dict | Just dict <- mdicts]
+
+polyArity :: [TyVar] -> VM Int
+polyArity tvs = do
+                  tys <- mapM paDictArgType tvs
+                  return $ length [() | Just _ <- tys]
 
 polyApply :: CoreExpr -> [Type] -> VM CoreExpr
 polyApply expr tys
@@ -316,31 +351,48 @@ polyVApply expr tys
       dicts <- mapM paDictOfType tys
       return $ mapVect (\e -> e `mkTyApps` tys `mkApps` dicts) expr
 
+
+data Inline = Inline Int -- arity
+            | DontInline
+
+addInlineArity :: Inline -> Int -> Inline
+addInlineArity (Inline m) n = Inline (m+n)
+addInlineArity DontInline _ = DontInline
+
+inlineMe :: Inline
+inlineMe = Inline 0
+
 hoistBinding :: Var -> CoreExpr -> VM ()
 hoistBinding v e = updGEnv $ \env ->
   env { global_bindings = (v,e) : global_bindings env }
 
-hoistExpr :: FastString -> CoreExpr -> VM Var
-hoistExpr fs expr
+hoistExpr :: FastString -> CoreExpr -> Inline -> VM Var
+hoistExpr fs expr inl
   = do
-      var <- newLocalVar fs (exprType expr)
+      var <- mk_inline `liftM` newLocalVar fs (exprType expr)
       hoistBinding var expr
       return var
+  where
+    mk_inline var = case inl of
+                      Inline arity -> var `setIdUnfolding`
+                                      mkInlineRule InlSat expr arity
+                      DontInline   -> var
 
-hoistVExpr :: VExpr -> VM VVar
-hoistVExpr (ve, le)
+hoistVExpr :: VExpr -> Inline -> VM VVar
+hoistVExpr (ve, le) inl
   = do
       fs <- getBindName
-      vv <- hoistExpr ('v' `consFS` fs) ve
-      lv <- hoistExpr ('l' `consFS` fs) le
+      vv <- hoistExpr ('v' `consFS` fs) ve inl
+      lv <- hoistExpr ('l' `consFS` fs) le (addInlineArity inl 1)
       return (vv, lv)
 
-hoistPolyVExpr :: [TyVar] -> VM VExpr -> VM VExpr
-hoistPolyVExpr tvs p
+hoistPolyVExpr :: [TyVar] -> Inline -> VM VExpr -> VM VExpr
+hoistPolyVExpr tvs inline p
   = do
-      expr <- closedV . polyAbstract tvs $ \abstract ->
-              liftM (mapVect abstract) p
-      fn   <- hoistVExpr expr
+      inline' <- liftM (addInlineArity inline) (polyArity tvs)
+      expr <- closedV . polyAbstract tvs $ \args ->
+              liftM (mapVect (mkLams $ tvs ++ args)) p
+      fn   <- hoistVExpr expr inline'
       polyVApply (vVar fn) (mkTyVarTys tvs)
 
 takeHoisted :: VM [(Var, CoreExpr)]
@@ -386,14 +438,15 @@ buildClosures :: [TyVar] -> [VVar] -> [Type] -> Type -> VM VExpr -> VM VExpr
 buildClosures _   _    [] _ mk_body
   = mk_body
 buildClosures tvs vars [arg_ty] res_ty mk_body
-  = liftM vInlineMe (buildClosure tvs vars arg_ty res_ty mk_body)
+  = -- liftM vInlineMe $
+      buildClosure tvs vars arg_ty res_ty mk_body
 buildClosures tvs vars (arg_ty : arg_tys) res_ty mk_body
   = do
       res_ty' <- mkClosureTypes arg_tys res_ty
       arg <- newLocalVVar (fsLit "x") arg_ty
-      liftM vInlineMe
-        . buildClosure tvs vars arg_ty res_ty'
-        . hoistPolyVExpr tvs
+      -- liftM vInlineMe
+      buildClosure tvs vars arg_ty res_ty'
+        . hoistPolyVExpr tvs (Inline (length vars + 1))
         $ do
             lc <- builtin liftingContext
             clo <- buildClosures tvs (vars ++ [arg]) arg_tys res_ty mk_body
@@ -411,11 +464,11 @@ buildClosure tvs vars arg_ty res_ty mk_body
       env_bndr <- newLocalVVar (fsLit "env") env_ty
       arg_bndr <- newLocalVVar (fsLit "arg") arg_ty
 
-      fn <- hoistPolyVExpr tvs
+      fn <- hoistPolyVExpr tvs (Inline 2)
           $ do
               lc    <- builtin liftingContext
               body  <- mk_body
-              return . vInlineMe
+              return -- . vInlineMe
                      . vLams lc [env_bndr, arg_bndr]
                      $ bind (vVar env_bndr)
                             (vVarApps lc body (vars ++ [arg_bndr]))
@@ -445,11 +498,11 @@ buildEnv vs
                        `mkTyApps` lenv_tyargs
                        `mkApps`   map Var lvs
 
-          vbind env body = mkWildCase venv ty (exprType body)
-                             [(DataAlt venv_con, vvs, body)]
+          vbind env body = mkWildCase env ty (exprType body)
+                           [(DataAlt venv_con, vvs, body)]
 
           lbind env body =
-            let scrut = unwrapFamInstScrut lenv_tc lenv_tyargs lenv
+            let scrut = unwrapFamInstScrut lenv_tc lenv_tyargs env
             in
             mkWildCase scrut (exprType scrut) (exprType body)
               [(DataAlt lenv_con, lvs, body)]
@@ -461,5 +514,5 @@ buildEnv vs
   where
     (vvs, lvs) = unzip vs
     tys        = map vVarType vs
-    ty         = mkCoreTupTy tys
+    ty         = mkBoxedTupleTy tys