%
-% (c) The University of Glasgow, 1994-2000
+% (c) The University of Glasgow, 1994-2006
%
-\section{Core pass to saturate constructors and PrimOps}
+
+Core pass to saturate constructors and PrimOps
\begin{code}
module CorePrep (
#include "HsVersions.h"
-import CoreUtils( exprType, exprIsHNF, etaExpand, exprArity, exprOkForSpeculation )
-import CoreFVs ( exprFreeVars )
-import CoreLint ( endPass )
+import CoreUtils hiding (exprIsTrivial)
+import CoreFVs
+import CoreLint
import CoreSyn
-import Type ( Type, applyTy,
- splitFunTy_maybe, isUnLiftedType, isUnboxedTupleType, seqType )
-import Coercion ( coercionKind )
-import TyCon ( TyCon, tyConDataCons )
-import NewDemand ( Demand, isStrictDmd, lazyDmd, StrictSig(..), DmdType(..) )
-import Var ( Var, Id, setVarUnique )
+import Type
+import Coercion
+import TyCon
+import NewDemand
+import Var
import VarSet
import VarEnv
-import Id ( mkSysLocal, idType, idNewDemandInfo, idArity, setIdUnfolding,
- isFCallId, isGlobalId, isLocalId, hasNoBinding, idNewStrictness,
- isPrimOpId_maybe
- )
-import DataCon ( dataConWorkId )
-import PrimOp ( PrimOp( DataToTagOp ) )
-import BasicTypes ( TopLevelFlag(..), isTopLevel, isNotTopLevel,
- RecFlag(..), isNonRec
- )
+import Id
+import IdInfo
+import DataCon
+import PrimOp
+import BasicTypes
import UniqSupply
import Maybes
import OrdList
import ErrUtils
import DynFlags
-import Util ( listLengthCmp )
+import Util
import Outputable
\end{code}
deLamFloat expr1 `thenUs` \ (floats, expr2) ->
returnUs (floats, Note n expr2)
+corePrepExprFloat env (Case (Var id) bndr ty [(DEFAULT,[],expr)])
+ | Just (TickBox {}) <- isTickBoxOp_maybe id
+ = corePrepAnExpr env expr `thenUs` \ expr1 ->
+ deLamFloat expr1 `thenUs` \ (floats, expr2) ->
+ return (floats, Case (Var id) bndr ty [(DEFAULT,[],expr2)])
+
corePrepExprFloat env (Note other_note expr)
= corePrepExprFloat env expr `thenUs` \ (floats, expr') ->
returnUs (floats, Note other_note expr')