-vectVar :: Var -> VM VExpr
-vectVar v
- = do
- r <- lookupVar v
- case r of
- Local (vv,lv) -> return (Var vv, Var lv)
- Global vv -> do
- let vexpr = Var vv
- lexpr <- liftPD vexpr
- return (vexpr, lexpr)
-
-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)
-
-vectLiteral :: Literal -> VM VExpr
-vectLiteral lit
- = do
- lexpr <- liftPD (Lit lit)
- return (Lit lit, lexpr)
-
-vectPolyExpr :: CoreExprWithFVs -> VM VExpr
-vectPolyExpr (_, AnnNote note expr)
- = liftM (vNote note) $ vectPolyExpr expr
-vectPolyExpr expr
- = polyAbstract tvs $ \abstract ->
- do
- mono' <- vectFnExpr False mono
- return $ mapVect abstract mono'
+
+-- | Vectorise a polymorphic expression
+vectPolyExpr
+ :: Bool -- ^ When vectorising the RHS of a binding, whether that
+ -- binding is a loop breaker.
+ -> CoreExprWithFVs
+ -> VM (Inline, VExpr)
+
+vectPolyExpr loop_breaker (_, AnnNote note expr)
+ = do (inline, expr') <- vectPolyExpr loop_breaker expr
+ return (inline, vNote note expr')
+
+vectPolyExpr loop_breaker expr
+ = dtrace (vcat [text "vectPolyExpr", ppr (deAnnotate expr)])
+ $ do
+ arity <- polyArity tvs
+ polyAbstract tvs $ \args ->
+ do
+ (inline, mono') <- vectFnExpr False loop_breaker mono
+ return (addInlineArity inline arity,
+ mapVect (mkLams $ tvs ++ args) mono')