Comments and formatting to vectoriser, and split out varish stuff into own module

[ghc-hetmet.git] / compiler / vectorise / Vectorise.hs

diff --git a/compiler/vectorise/Vectorise.hs b/compiler/vectorise/Vectorise.hs
index f60ed6f..7aae48c 100644 (file)
--- a/compiler/vectorise/Vectorise.hs
+++ b/compiler/vectorise/Vectorise.hs
@@ -5,6 +5,7 @@ where
 
 import VectMonad
 import VectUtils
+import VectVar
 import VectType
 import VectCore
 
@@ -28,7 +29,7 @@ import Id
 import OccName
 import BasicTypes           ( isLoopBreaker )
 
-import Literal              ( Literal, mkMachInt )
+import Literal
 import TysWiredIn
 import TysPrim              ( intPrimTy )
 
@@ -221,109 +222,8 @@ tryConvert var vect_var rhs
 
 
 -- ----------------------------------------------------------------------------
--- Bindings
-
--- | Vectorise a binder variable, along with its attached type.
-vectBndr :: Var -> VM VVar
-vectBndr v
-  = do
-      (vty, lty) <- vectAndLiftType (idType v)
-      let vv = v `Id.setIdType` vty
-          lv = v `Id.setIdType` lty
-      updLEnv (mapTo vv lv)
-      return (vv, lv)
-  where
-    mapTo vv lv env = env { local_vars = extendVarEnv (local_vars env) v (vv, lv) }
-
-
--- | Vectorise a binder variable, along with its attached type, 
---   but give the result a new name.
-vectBndrNew :: Var -> FastString -> VM VVar
-vectBndrNew v fs
-  = do
-      vty <- vectType (idType v)
-      vv  <- newLocalVVar fs vty
-      updLEnv (upd vv)
-      return vv
-  where
-    upd vv env = env { local_vars = extendVarEnv (local_vars env) v vv }
-
-
--- | Vectorise a binder then run a computation with that binder in scope.
-vectBndrIn :: Var -> VM a -> VM (VVar, a)
-vectBndrIn v p
-  = localV
-  $ do
-      vv <- vectBndr v
-      x <- p
-      return (vv, x)
-
-
--- | Vectorise a binder, give it a new name, then run a computation with that binder in scope.
-vectBndrNewIn :: Var -> FastString -> VM a -> VM (VVar, a)
-vectBndrNewIn v fs p
-  = localV
-  $ do
-      vv <- vectBndrNew v fs
-      x  <- p
-      return (vv, x)
-
--- | Vectorise some binders, then run a computation with them in scope.
-vectBndrsIn :: [Var] -> VM a -> VM ([VVar], a)
-vectBndrsIn vs p
-  = localV
-  $ do
-      vvs <- mapM vectBndr vs
-      x <- p
-      return (vvs, x)
-
-
--- ----------------------------------------------------------------------------
 -- Expressions
 
--- | Vectorise a variable, producing the vectorised and lifted versions.
-vectVar :: Var -> VM VExpr
-vectVar v
- = do 
-      -- lookup the variable from the environment.
-      r <- lookupVar v
-
-      case r of
-        -- If it's been locally bound then we'll already have both versions available.
-        Local (vv,lv) 
-         -> return (Var vv, Var lv)
-
-        -- To create the lifted version of a global variable we replicate it.
-        Global vv     
-         -> do let vexpr = Var vv
-               lexpr <- liftPD vexpr
-               return (vexpr, lexpr)
-
-
--- | Like `vectVar` but also add type applications to the variables.
-vectPolyVar :: Var -> [Type] -> VM VExpr
-vectPolyVar v tys
-  = do
-      vtys     <- mapM vectType tys
-      r                <- lookupVar v
-      case r of
-        Local (vv, lv) 
-         -> liftM2 (,) (polyApply (Var vv) vtys)
-                       (polyApply (Var lv) vtys)
-
-        Global poly    
-         -> do vexpr <- polyApply (Var poly) vtys
-               lexpr <- liftPD vexpr
-               return (vexpr, lexpr)
-
-
--- | Lifted literals are created by replicating them.
-vectLiteral :: Literal -> VM VExpr
-vectLiteral lit
-  = do
-      lexpr <- liftPD (Lit lit)
-      return (Lit lit, lexpr)
-
 
 -- | Vectorise a polymorphic expression
 vectPolyExpr