Fix a warning message

We were printing the wrong value, so getting confusing messages like:
    Function `$wa{v s17LO} [lid]'
        has 2 call pattterns, but the limit is 3

diff --git a/compiler/specialise/SpecConstr.lhs b/compiler/specialise/SpecConstr.lhs
index e3dc1b0..222bcd1 100644 (file)
--- a/compiler/specialise/SpecConstr.lhs
+++ b/compiler/specialise/SpecConstr.lhs
@@ -1107,15 +1107,14 @@ specialise env force_spec bind_calls (fn, arg_bndrs, body, arg_occs)
 
                -- Bale out if too many specialisations
                -- Rather a hacky way to do so, but it'll do for now
-       ; let n_pats = length pats
-              spec_count' = length pats + spec_count
+       ; let spec_count' = length pats + spec_count
        ; case sc_count env of
            Just max | not force_spec && spec_count' > max
                -> pprTrace "SpecConstr" msg $  
                   return (nullUsage, spec_info)
                where
                   msg = vcat [ sep [ ptext (sLit "Function") <+> quotes (ppr fn)
-                                   , nest 2 (ptext (sLit "has") <+> int n_pats <+> 
+                                   , nest 2 (ptext (sLit "has") <+> int spec_count' <+>
                                               ptext (sLit "call patterns, but the limit is") <+> int max) ]
                              , ptext (sLit "Use -fspec-constr-count=n to set the bound")
                              , extra ]