{-# LANGUAGE OverloadedStrings #-}
-import AST
+import AST as K -- K for Kaleidoscope
import Utils
import Control.Monad.IO.Class
import qualified Data.Text.Lazy.IO as Text
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.IRBuilder
buildExpr :: Expr -> IRBuilderT ModuleBuilder Operand
buildExpr (Num x) = pure $ ConstantOperand (Float (Double x))
+buildExpr (BinOp op a b) = do
+ opA <- buildExpr a
+ opB <- buildExpr b
+ tmp <- instr opA opB
+ if isCmp
+ then uitofp tmp Type.double
+ else return tmp
+ where isCmp
+ | Cmp _ <- op = True
+ | otherwise = False
+ instr = case op of
+ K.Add -> fadd
+ K.Sub -> fsub
+ K.Mul -> fmul
+ K.Cmp LT -> fcmp OLT
+ K.Cmp GT -> fcmp OGT
+ K.Cmp EQ -> fcmp OEQ