[project @ 1997-03-14 07:52:06 by simonpj]

[ghc-hetmet.git] / ghc / compiler / stranal / StrictAnal.lhs

diff --git a/ghc/compiler/stranal/StrictAnal.lhs b/ghc/compiler/stranal/StrictAnal.lhs
index 9f38ead..5013b29 100644 (file)
--- a/ghc/compiler/stranal/StrictAnal.lhs
+++ b/ghc/compiler/stranal/StrictAnal.lhs
@@ -27,7 +27,7 @@ import IdInfo         ( mkStrictnessInfo, mkBottomStrictnessInfo,
 import PprCore         ( pprCoreBinding, pprBigCoreBinder )
 import PprStyle                ( PprStyle(..) )
 import PprType         ( GenType{-instance Outputable-}, GenTyVar{-ditto-} )
-import Pretty          ( ppBesides, ppStr, ppInt, ppChar, ppAboves )
+import Pretty          ( ppBesides, ppPStr, ppInt, ppChar, ppAboves )
 import SaAbsInt
 import SaLib
 import TyVar           ( GenTyVar{-instance Eq-} )
@@ -123,9 +123,9 @@ saWwTopBinds us binds
   where
     pp_stats (SaStats tlam dlam tc dc tlet dlet)
       = pprTrace "Binders marked demanded: "
-       (ppBesides [ppStr "Lambda vars: ", ppInt IBOX(dlam), ppChar '/', ppInt IBOX(tlam),
-                 ppStr "; Case vars: ",   ppInt IBOX(dc),   ppChar '/', ppInt IBOX(tc),
-                 ppStr "; Let vars: ",    ppInt IBOX(dlet), ppChar '/', ppInt IBOX(tlet)
+       (ppBesides [ppPStr SLIT("Lambda vars: "), ppInt IBOX(dlam), ppChar '/', ppInt IBOX(tlam),
+                   ppPStr SLIT("; Case vars: "), ppInt IBOX(dc),   ppChar '/', ppInt IBOX(tc),
+                   ppPStr SLIT("; Let vars: "),  ppInt IBOX(dlet), ppChar '/', ppInt IBOX(tlet)
        ])
 #endif
 \end{code}
@@ -408,13 +408,13 @@ addStrictnessInfoToId strflags str_val abs_val binder body
   = binder `addIdStrictness` mkBottomStrictnessInfo
 
   | otherwise
-  = case (collectBinders body) of { (_, _, lambda_bounds, rhs) ->
-    let
-       tys        = map idType lambda_bounds
-       strictness = findStrictness strflags tys str_val abs_val
-    in
-    binder `addIdStrictness` mkStrictnessInfo strictness Nothing
-    }
+  = case (collectBinders body) of
+       (_, _, [], rhs)            -> binder
+       (_, _, lambda_bounds, rhs) -> binder `addIdStrictness` 
+                                     mkStrictnessInfo strictness Nothing
+               where
+                   tys        = map idType lambda_bounds
+                   strictness = findStrictness strflags tys str_val abs_val
 \end{code}
 
 \begin{code}