diff options
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/GHC/CoreToStg.hs | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/compiler/GHC/CoreToStg.hs b/compiler/GHC/CoreToStg.hs index 268c427f09..053fd2dcf9 100644 --- a/compiler/GHC/CoreToStg.hs +++ b/compiler/GHC/CoreToStg.hs @@ -49,7 +49,6 @@ import GHC.Types.Demand ( isUsedOnceDmd ) import GHC.Types.SrcLoc ( mkGeneralSrcSpan ) import GHC.Unit.Module -import GHC.Builtin.Types ( unboxedUnitDataCon ) import GHC.Data.FastString import GHC.Platform.Ways import GHC.Builtin.PrimOps ( PrimCall(..) ) @@ -462,15 +461,6 @@ coreToStgExpr (Case scrut bndr _ alts) where vars_alt :: CoreAlt -> CtsM StgAlt vars_alt (Alt con binders rhs) - | DataAlt c <- con, c == unboxedUnitDataCon - = -- This case is a bit smelly. - -- See Note [Nullary unboxed tuple] in GHC.Core.Type - -- where a nullary tuple is mapped to (State# World#) - assert (null binders) $ - do { rhs2 <- coreToStgExpr rhs - ; return GenStgAlt{alt_con=DEFAULT,alt_bndrs=mempty,alt_rhs=rhs2} - } - | otherwise = let -- Remove type variables binders' = filterStgBinders binders in |