- -- Lint result if necessary
- ; endPass dflags "Desugar" Opt_D_dump_ds ds_binds
-
- -- Dump output
- ; doIfSet (dopt Opt_D_dump_ds dflags)
- (printDump (ppr_ds_rules ds_rules))
-
- ; dfun_uses <- readIORef dfun_uses_var -- What dfuns are used
- ; th_used <- readIORef th_var -- Whether TH is used
- ; let used_names = allUses dus `unionNameSets` dfun_uses
- pkgs | th_used = insertList thPackageId (imp_dep_pkgs imports)
- | otherwise = imp_dep_pkgs imports
-
- dep_mods = eltsUFM (delFromUFM (imp_dep_mods imports) (moduleName mod))
- -- M.hi-boot can be in the imp_dep_mods, but we must remove
- -- it before recording the modules on which this one depends!
- -- (We want to retain M.hi-boot in imp_dep_mods so that
- -- loadHiBootInterface can see if M's direct imports depend
- -- on M.hi-boot, and hence that we should do the hi-boot consistency
- -- check.)
-
- dir_imp_mods = imp_mods imports
-
- ; usages <- mkUsageInfo hsc_env dir_imp_mods dep_mods used_names
-
- ; let
- -- Modules don't compare lexicographically usually,
- -- but we want them to do so here.
- le_mod :: Module -> Module -> Bool
- le_mod m1 m2 = moduleNameFS (moduleName m1)
- <= moduleNameFS (moduleName m2)
- le_dep_mod :: (ModuleName, IsBootInterface) -> (ModuleName, IsBootInterface) -> Bool
- le_dep_mod (m1,_) (m2,_) = moduleNameFS m1 <= moduleNameFS m2
-
- deps = Deps { dep_mods = sortLe le_dep_mod dep_mods,
- dep_pkgs = sortLe (<=) pkgs,
- dep_orphs = sortLe le_mod (imp_orphs imports),
- dep_finsts = sortLe le_mod (imp_finsts imports) }
- -- sort to get into canonical order
-
- mod_guts = ModGuts {
+ -- Lint result if necessary, and print
+ ; dumpIfSet_dyn dflags Opt_D_dump_ds "Desugared, before opt" $
+ (vcat [ pprCoreBindings final_pgm
+ , pprRules rules_for_imps ])
+
+ ; (ds_binds, ds_rules_for_imps) <- simpleOptPgm dflags final_pgm rules_for_imps
+ -- The simpleOptPgm gets rid of type
+ -- bindings plus any stupid dead code
+
+ ; endPass dflags CoreDesugar ds_binds ds_rules_for_imps
+
+ ; let used_names = mkUsedNames tcg_env
+ ; deps <- mkDependencies tcg_env
+
+ ; let mod_guts = ModGuts {