X-Git-Url: https://git.lukelau.me/?p=kaleidoscope-hs.git;a=blobdiff_plain;f=Main.hs;h=ee8ee608da79855741c0fab9cc68a63b9b5c88f6;hp=cf20ab898fa2bd9744d698f29ee8dffea73b1bfe;hb=e23b23071fc89fc8b73eee61cc06728c93375161;hpb=ca0230e700099b456ec47b7a705ca5d1e6db2841

diff --git a/Main.hs b/Main.hs
index cf20ab8..ee8ee60 100644
--- a/Main.hs
+++ b/Main.hs
@@ -2,34 +2,59 @@
 
 import AST as K -- K for Kaleidoscope
 import Utils
+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 = buildModuleT "main" repl
+main :: IO ()
+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> "
-  ast <- liftIO $ readMaybe <$> getLine
-  case ast of
+  mline <- liftIO $ catchIOError (Just <$> getLine) eofHandler
+  case mline of
+    Nothing -> return ()
+    Just l -> do
+      case readMaybe l of
         Nothing ->  liftIO $ hPutStrLn stderr "Couldn't parse"
-    Just x -> do
-      hoist $ buildAST x
+        Just ast -> do
+          hoist $ buildAST ast
           mostRecentDef >>= liftIO . Text.hPutStrLn stderr . ppll
+
+          ast <- moduleSoFar "main"
+          ctx <- lift ask
+          liftIO $ withModuleFromAST ctx ast $ \mdl -> do
+            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
       repl
   where
+    eofHandler e
+      | isEOFError e = return Nothing
+      | otherwise = ioError e
 
 type Binds = Map.Map String Operand
 
@@ -72,3 +97,12 @@ 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 []))