diff options
Diffstat (limited to 'compiler/GHC/Core/Opt/Simplify/Utils.hs')
| -rw-r--r-- | compiler/GHC/Core/Opt/Simplify/Utils.hs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/compiler/GHC/Core/Opt/Simplify/Utils.hs b/compiler/GHC/Core/Opt/Simplify/Utils.hs index 7eb4692231..de431198d5 100644 --- a/compiler/GHC/Core/Opt/Simplify/Utils.hs +++ b/compiler/GHC/Core/Opt/Simplify/Utils.hs @@ -62,7 +62,7 @@ import GHC.Core.Unfold.Make import GHC.Core.Opt.Simplify.Monad import GHC.Core.Type hiding( substTy ) import GHC.Core.Coercion hiding( substCo ) -import GHC.Core.DataCon ( dataConWorkId, isNullaryRepDataCon ) +import GHC.Core.DataCon ( dataConWorkId, dataConRepArity ) import GHC.Core.Multiplicity import GHC.Core.Opt.ConstantFold @@ -2659,7 +2659,7 @@ mkCase2 mode scrut bndr alts_ty alts DataAlt dc -> mkConApp2 dc (tyConAppArgs (idType bndr)) bs mk_new_bndrs new_bndr (DataAlt dc) - | not (isNullaryRepDataCon dc) + | dataConRepArity dc /= 0 = -- For non-nullary data cons we must invent some fake binders -- See Note [caseRules for dataToTag] in GHC.Core.Opt.ConstantFold do { us <- getUniquesM |