X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FcoreSyn%2FMkCore.lhs;h=583f31498dd60c2e2d947efcd134738f2f3dcd0e;hb=aa1c7df20292d9af0b757d71870ae6890a1f9030;hp=f345b89c88ec61f94d327bf71ef387392686b995;hpb=14a496fd0b3aa821b69eb02736d5f41086576761;p=ghc-hetmet.git

diff --git a/compiler/coreSyn/MkCore.lhs b/compiler/coreSyn/MkCore.lhs
index f345b89..583f314 100644
--- a/compiler/coreSyn/MkCore.lhs
+++ b/compiler/coreSyn/MkCore.lhs
@@ -65,7 +65,6 @@ import Name
 import Outputable
 import FastString
 import UniqSupply
-import Unique		( mkBuiltinUnique )
 import BasicTypes
 import Util             ( notNull, zipEqual )
 import Constants
@@ -156,8 +155,9 @@ mkWildEvBinder pred             = mkWildValBinder (mkPredTy pred)
 -- that you expect to use only at a *binding* site.  Do not use it at
 -- occurrence sites because it has a single, fixed unique, and it's very
 -- easy to get into difficulties with shadowing.  That's why it is used so little.
+-- See Note [WildCard binders] in SimplEnv
 mkWildValBinder :: Type -> Id
-mkWildValBinder ty = mkSysLocal (fsLit "wild") (mkBuiltinUnique 1) ty
+mkWildValBinder ty = mkLocalId wildCardName ty
 
 mkWildCase :: CoreExpr -> Type -> Type -> [CoreAlt] -> CoreExpr
 -- Make a case expression whose case binder is unused