+hoistExpr :: FastString -> CoreExpr -> VM Var
+hoistExpr fs expr
+ = do
+ var <- newLocalVar fs (exprType expr)
+ updGEnv $ \env ->
+ env { global_bindings = (var, expr) : global_bindings env }
+ return var
+
+takeHoisted :: VM [(Var, CoreExpr)]
+takeHoisted
+ = do
+ env <- readGEnv id
+ setGEnv $ env { global_bindings = [] }
+ return $ global_bindings env
+