diff options
| author | Krzysztof Gogolewski <krzysztof.gogolewski@tweag.io> | 2019-06-08 20:48:07 +0200 |
|---|---|---|
| committer | Krzysztof Gogolewski <krzysztof.gogolewski@tweag.io> | 2019-06-09 14:35:50 +0200 |
| commit | 4c44e323e8ac0e28e87e93ab53cbf7eb21ac9c25 (patch) | |
| tree | b0991218e9cac8f76224df017856045c71d779e4 /compiler/nativeGen/RegAlloc/Linear/State.hs | |
| parent | 8754002973dcde8709458044e541ddc8f4fcf6bb (diff) | |
| download | haskell-wip/derive-functor.tar.gz | |
Use DeriveFunctor throughout the codebase (#15654)wip/derive-functor
Diffstat (limited to 'compiler/nativeGen/RegAlloc/Linear/State.hs')
| -rw-r--r-- | compiler/nativeGen/RegAlloc/Linear/State.hs | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/compiler/nativeGen/RegAlloc/Linear/State.hs b/compiler/nativeGen/RegAlloc/Linear/State.hs index 8df4dd04f0..43b8f6c129 100644 --- a/compiler/nativeGen/RegAlloc/Linear/State.hs +++ b/compiler/nativeGen/RegAlloc/Linear/State.hs @@ -1,4 +1,4 @@ -{-# LANGUAGE CPP, PatternSynonyms #-} +{-# LANGUAGE CPP, PatternSynonyms, DeriveFunctor #-} #if !defined(GHC_LOADED_INTO_GHCI) {-# LANGUAGE UnboxedTuples #-} @@ -50,7 +50,7 @@ import DynFlags import Unique import UniqSupply -import Control.Monad (liftM, ap) +import Control.Monad (ap) -- Avoids using unboxed tuples when loading into GHCi #if !defined(GHC_LOADED_INTO_GHCI) @@ -63,15 +63,14 @@ pattern RA_Result a b = (# a, b #) #else data RA_Result freeRegs a = RA_Result {-# UNPACK #-} !(RA_State freeRegs) !a + deriving (Functor) #endif -- | The register allocator monad type. newtype RegM freeRegs a = RegM { unReg :: RA_State freeRegs -> RA_Result freeRegs a } - -instance Functor (RegM freeRegs) where - fmap = liftM + deriving (Functor) instance Applicative (RegM freeRegs) where pure a = RegM $ \s -> RA_Result s a |