[project @ 2000-10-25 13:51:50 by simonpj]

[ghc-hetmet.git] / ghc / compiler / simplCore / Simplify.lhs

diff --git a/ghc/compiler/simplCore/Simplify.lhs b/ghc/compiler/simplCore/Simplify.lhs
index 9dd953b..c972821 100644 (file)
--- a/ghc/compiler/simplCore/Simplify.lhs
+++ b/ghc/compiler/simplCore/Simplify.lhs
@@ -29,11 +29,11 @@ import Id           ( Id, idType, idInfo, isDataConId,
                          zapLamIdInfo, setOneShotLambda, 
                        )
 import IdInfo          ( OccInfo(..), isDeadOcc, isLoopBreaker,
-                         ArityInfo, setArityInfo, unknownArity,
+                         setArityInfo, unknownArity,
                          setUnfoldingInfo,
                          occInfo
                        )
-import Demand          ( Demand, isStrict )
+import Demand          ( isStrict )
 import DataCon         ( dataConNumInstArgs, dataConRepStrictness,
                          dataConSig, dataConArgTys
                        )
@@ -44,16 +44,16 @@ import CoreUnfold   ( mkOtherCon, mkUnfolding, otherCons,
                        )
 import CoreUtils       ( cheapEqExpr, exprIsDupable, exprIsTrivial, exprIsConApp_maybe,
                          exprType, coreAltsType, exprIsValue, idAppIsCheap,
-                         exprOkForSpeculation, etaReduceExpr,
+                         exprOkForSpeculation, 
                          mkCoerce, mkSCC, mkInlineMe, mkAltExpr
                        )
 import Rules           ( lookupRule )
 import CostCentre      ( currentCCS )
 import Type            ( mkTyVarTys, isUnLiftedType, seqType,
-                         mkFunTy, splitFunTy, splitTyConApp_maybe, 
+                         mkFunTy, splitTyConApp_maybe, 
                          funResultTy
                        )
-import Subst           ( mkSubst, substTy, substExpr,
+import Subst           ( mkSubst, substTy, 
                          isInScope, lookupIdSubst, substIdInfo
                        )
 import TyCon           ( isDataTyCon, tyConDataConsIfAvailable )
@@ -564,7 +564,6 @@ completeBinding old_bndr new_bndr top_lvl black_listed new_rhs thing_inside
     old_info          = idInfo old_bndr
     occ_info          = occInfo old_info
     loop_breaker      = isLoopBreaker occ_info
-    trivial_rhs              = exprIsTrivial new_rhs 
     must_keep_binding = black_listed || loop_breaker || isExportedId old_bndr
 
     finally_bind_it arity_info new_rhs