X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2FdeSugar%2FDesugar.lhs;h=7b008e9aaf2a4571995e36efd8e9eff4b702d187;hp=142f695cb5ebcfb37f8b1e14b35170d954d86e6a;hb=d0faaa6fa0cecd23c5670fd199e9206275313666;hpb=f2aaae9757e7532485c97f6c9a9ed5437542d1dd diff --git a/compiler/deSugar/Desugar.lhs b/compiler/deSugar/Desugar.lhs index 142f695..7b008e9 100644 --- a/compiler/deSugar/Desugar.lhs +++ b/compiler/deSugar/Desugar.lhs @@ -105,10 +105,14 @@ deSugar hsc_env ; (ds_fords, foreign_prs) <- dsForeigns fords ; ds_rules <- mapMaybeM dsRule rules ; ds_vects <- mapM dsVect vects + ; let hpc_init + | opt_Hpc = hpcInitCode mod ds_hpc_info + | otherwise = empty ; return ( ds_ev_binds , foreign_prs `appOL` core_prs `appOL` spec_prs , spec_rules ++ ds_rules, ds_vects - , ds_fords, ds_hpc_info, modBreaks) } + , ds_fords `appendStubC` hpc_init + , ds_hpc_info, modBreaks) } ; case mb_res of { Nothing -> return (msgs, Nothing) ; @@ -374,6 +378,8 @@ switching off EnableRewriteRules. See DsExpr.dsExplicitList. That keeps the desugaring of list comprehensions simple too. + + Nor do we want to warn of conversion identities on the LHS; the rule is precisly to optimise them: {-# RULES "fromRational/id" fromRational = id :: Rational -> Rational #-}