Fix #2838: we should narrow a CmmInt before converting to ImmInteger

[ghc-hetmet.git] / compiler / cmm / CmmOpt.hs

diff --git a/compiler/cmm/CmmOpt.hs b/compiler/cmm/CmmOpt.hs
index 148e3da..8326a48 100644 (file)
--- a/compiler/cmm/CmmOpt.hs
+++ b/compiler/cmm/CmmOpt.hs
@@ -500,23 +500,6 @@ exactLog2 x_
 
 
 -- -----------------------------------------------------------------------------
--- widening / narrowing
-
-narrowU :: Width -> Integer -> Integer
-narrowU W8  x = fromIntegral (fromIntegral x :: Word8)
-narrowU W16 x = fromIntegral (fromIntegral x :: Word16)
-narrowU W32 x = fromIntegral (fromIntegral x :: Word32)
-narrowU W64 x = fromIntegral (fromIntegral x :: Word64)
-narrowU _ _ = panic "narrowTo"
-
-narrowS :: Width -> Integer -> Integer
-narrowS W8  x = fromIntegral (fromIntegral x :: Int8)
-narrowS W16 x = fromIntegral (fromIntegral x :: Int16)
-narrowS W32 x = fromIntegral (fromIntegral x :: Int32)
-narrowS W64 x = fromIntegral (fromIntegral x :: Int64)
-narrowS _ _ = panic "narrowTo"
-
--- -----------------------------------------------------------------------------
 -- Loopify for C
 
 {-