Detect and remove __anon_exprs in repl

[kaleidoscope-hs.git] / Main.hs

diff --git a/Main.hs b/Main.hs
index f32003bdd2dbb48eba325526bf1849444fd1d09d..4dafa02b5f1acc3e2828c35a570993fba1abcfd0 100644 (file)
--- a/Main.hs
+++ b/Main.hs
@@ -2,26 +2,36 @@
 
 import AST as K -- K for Kaleidoscope
 import Utils
+import Control.Monad
+import Control.Monad.Trans.Class
 import Control.Monad.Trans.Reader
 import Control.Monad.IO.Class
 import Data.String
 import qualified Data.Map as Map
 import qualified Data.Text.Lazy.IO as Text
+import LLVM.AST.AddrSpace
 import LLVM.AST.Constant
 import LLVM.AST.Float
 import LLVM.AST.FloatingPointPredicate hiding (False, True)
 import LLVM.AST.Operand
 import LLVM.AST.Type as Type
+import LLVM.Context
 import LLVM.IRBuilder
+import LLVM.Module
+import LLVM.PassManager
 import LLVM.Pretty
+import LLVM.Target
 import System.IO
 import System.IO.Error
 import Text.Read (readMaybe)
 
 main :: IO ()
-main = buildModuleT "main" repl >>= Text.hPutStrLn stderr . ("\n" <>) . ppll
+main = do
+  withContext $ \ctx -> withHostTargetMachine $ \tm -> do
+    ast <- runReaderT (buildModuleT "main" repl) ctx
+    return ()
 
-repl :: ModuleBuilderT IO ()
+repl :: ModuleBuilderT (ReaderT Context IO) ()
 repl = do
   liftIO $ hPutStr stderr "ready> "
   mline <- liftIO $ catchIOError (Just <$> getLine) eofHandler
@@ -31,13 +41,30 @@ repl = do
       case readMaybe l of
         Nothing ->  liftIO $ hPutStrLn stderr "Couldn't parse"
         Just ast -> do
-          hoist $ buildAST ast
-          mostRecentDef >>= liftIO . Text.hPutStrLn stderr . ppll
+          anon <- isAnonExpr <$> hoist (buildAST ast)
+          def <- mostRecentDef
+          
+          ast <- moduleSoFar "main"
+          ctx <- lift ask
+          liftIO $ withModuleFromAST ctx ast $ \mdl -> do
+            Text.hPutStrLn stderr $ ppll def
+            let spec = defaultCuratedPassSetSpec { optLevel = Just 3 }
+            -- this returns true if the module was modified
+            withPassManager spec $ flip runPassManager mdl
+            Text.hPutStrLn stderr . ("\n" <>) . ppllvm =<< moduleAST mdl
+            when anon (jit mdl >>= hPrint stderr)
+
+          when anon (removeDef def)
       repl
   where
     eofHandler e
       | isEOFError e = return Nothing
       | otherwise = ioError e
+    isAnonExpr (ConstantOperand (GlobalReference _ "__anon_expr")) = True
+    isAnonExpr _ = False
+
+jit :: Module -> IO Double
+jit _mdl = putStrLn "Working on it!" >> return 0
 
 type Binds = Map.Map String Operand
 
@@ -80,3 +107,12 @@ buildExpr (BinOp op a b) = do
                   K.Cmp LT -> fcmp OLT
                   K.Cmp GT -> fcmp OGT
                   K.Cmp EQ -> fcmp OEQ
+
+buildExpr (Call callee params) = do
+  paramOps <- mapM buildExpr params
+  let nam = fromString callee
+      -- get a pointer to the function
+      typ = FunctionType Type.double (replicate (length params) Type.double) False
+      ptrTyp = Type.PointerType typ (AddrSpace 0)
+      ref = GlobalReference ptrTyp nam
+  call (ConstantOperand ref) (zip paramOps (repeat []))