opt_AutoSccsOnExportedToplevs,
opt_AutoSccsOnIndividualCafs,
opt_CompilingGhcInternals,
- opt_UsingGhcInternals,
opt_D_dump_absC,
opt_D_dump_asm,
- opt_D_dump_deforest,
opt_D_dump_deriv,
opt_D_dump_ds,
opt_D_dump_flatC,
opt_D_dump_realC,
opt_D_dump_rn,
opt_D_dump_simpl,
+ opt_D_dump_simpl_iterations,
opt_D_dump_spec,
opt_D_dump_stg,
opt_D_dump_stranal,
opt_D_dump_tc,
opt_D_show_passes,
+ opt_D_show_rn_trace,
opt_D_simplifier_stats,
opt_D_source_stats,
opt_D_verbose_core2core,
opt_D_verbose_stg2stg,
opt_DoCoreLinting,
+ opt_DoStgLinting,
opt_DoSemiTagging,
+ opt_DoEtaReduction,
opt_DoTickyProfiling,
opt_EnsureSplittableC,
opt_FoldrBuildOn,
opt_ForConcurrent,
opt_GlasgowExts,
opt_GranMacros,
- opt_Haskell_1_3,
opt_HiMap,
- opt_HideBuiltinNames,
- opt_HideMostBuiltinNames,
opt_IgnoreIfacePragmas,
opt_IgnoreStrictnessPragmas,
opt_IrrefutableEverything,
opt_IrrefutableTuples,
+ opt_LiberateCaseThreshold,
opt_NoImplicitPrelude,
opt_NumbersStrict,
opt_OmitBlackHoling,
opt_OmitInterfacePragmas,
opt_PprStyle_All,
opt_PprStyle_Debug,
- opt_PprStyle_User,
+ opt_PprStyle_User, -- ToDo: rm
+ opt_PprUserLength,
opt_ProduceC,
opt_ProduceHi,
opt_ProduceS,
opt_ShowImportSpecs,
opt_ShowPragmaNameErrs,
opt_SigsRequired,
+ opt_SourceUnchanged,
opt_SpecialiseAll,
opt_SpecialiseImports,
opt_SpecialiseOverloaded,
opt_SpecialiseTrace,
opt_SpecialiseUnboxed,
opt_StgDoLetNoEscapes,
+
+ opt_InterfaceUnfoldThreshold,
opt_UnfoldingCreationThreshold,
- opt_UnfoldingOverrideThreshold,
+ opt_UnfoldingConDiscount,
opt_UnfoldingUseThreshold,
+
opt_Verbose,
- opt_WarnNameShadowing
+ opt_WarnNameShadowing,
+ opt_WarnUnusedNames,
+ opt_WarnIncompletePatterns, opt_WarnOverlappedPatterns,
+ opt_PruneTyDecls, opt_PruneInstDecls,
+ opt_D_show_unused_imports,
+ opt_D_show_rn_stats,
+
+ all_toplev_ids_visible
) where
IMPORT_1_3(Array(array, (//)))
+#if defined(__GLASGOW_HASKELL__) && __GLASGOW_HASKELL__ <= 201
import PreludeGlaST -- bad bad bad boy, Will (_Array internals)
-import Argv
+#else
+import GlaExts
+import ArrBase
+-- 2.04 and later exports Lift from GlaExts
+#if __GLASGOW_HASKELL__ < 204
+import PrelBase (Lift(..))
+#endif
+#endif
CHK_Ubiq() -- debugging consistency check
+import Argv
+import Constants -- Default values for some flags
import Maybes ( assocMaybe, firstJust, maybeToBool )
import Util ( startsWith, panic, panic#, assertPanic )
\end{code}
| CoreDoStaticArgs
| CoreDoStrictness
| CoreDoSpecialising
- | CoreDoDeforest
| CoreDoFoldrBuildWorkerWrapper
| CoreDoFoldrBuildWWAnal
\end{code}
| IgnoreINLINEPragma
| SimplDoLambdaEtaExpansion
- | SimplDoEtaReduction
| EssentialUnfoldingsOnly -- never mind the thresholds, only
-- do unfoldings that *must* be done
| MaxSimplifierIterations Int
- | SimplUnfoldingUseThreshold Int -- per-simplification variants
- | SimplUnfoldingCreationThreshold Int
-
| KeepSpecPragmaIds -- We normally *toss* Ids we can do without
| KeepUnusedBindings
-- Oops!
-- So only use this flag inside List.hs
-- (Sigh, what a HACK, Andy. WDP 96/01)
+
+ | SimplCaseMerge
+ | SimplCaseScrutinee -- This flag tells that the expression being simplified is
+ -- the scrutinee of a case expression, so we should
+ -- apply the scrutinee discount when considering inlinings.
+ -- See SimplVar.lhs
\end{code}
%************************************************************************
%************************************************************************
\begin{code}
-lookUp :: FAST_STRING -> Bool
-lookup_int :: String -> Maybe Int
-lookup_str :: String -> Maybe String
+lookUp :: FAST_STRING -> Bool
+lookup_int :: String -> Maybe Int
+lookup_def_int :: String -> Int -> Int
+lookup_str :: String -> Maybe String
lookUp sw = maybeToBool (assoc_opts sw)
Nothing -> Nothing
Just xx -> Just (read xx)
+lookup_def_int sw def = case (lookup_str sw) of
+ Nothing -> def -- Use default
+ Just xx -> read xx
+
assoc_opts = assocMaybe [ (a, True) | a <- argv ]
unpacked_opts = map _UNPK_ argv
\end{code}
opt_AutoSccsOnAllToplevs = lookUp SLIT("-fauto-sccs-on-all-toplevs")
opt_AutoSccsOnExportedToplevs = lookUp SLIT("-fauto-sccs-on-exported-toplevs")
opt_AutoSccsOnIndividualCafs = lookUp SLIT("-fauto-sccs-on-individual-cafs")
+opt_CompilingGhcInternals = maybeToBool maybe_CompilingGhcInternals
+maybe_CompilingGhcInternals = lookup_str "-fcompiling-ghc-internals="
opt_D_dump_absC = lookUp SLIT("-ddump-absC")
opt_D_dump_asm = lookUp SLIT("-ddump-asm")
-opt_D_dump_deforest = lookUp SLIT("-ddump-deforest")
opt_D_dump_deriv = lookUp SLIT("-ddump-deriv")
opt_D_dump_ds = lookUp SLIT("-ddump-ds")
opt_D_dump_flatC = lookUp SLIT("-ddump-flatC")
opt_D_dump_realC = lookUp SLIT("-ddump-realC")
opt_D_dump_rn = lookUp SLIT("-ddump-rn")
opt_D_dump_simpl = lookUp SLIT("-ddump-simpl")
+opt_D_dump_simpl_iterations = lookUp SLIT("-ddump-simpl-iterations")
opt_D_dump_spec = lookUp SLIT("-ddump-spec")
opt_D_dump_stg = lookUp SLIT("-ddump-stg")
opt_D_dump_stranal = lookUp SLIT("-ddump-stranal")
opt_D_dump_tc = lookUp SLIT("-ddump-tc")
opt_D_show_passes = lookUp SLIT("-dshow-passes")
+opt_D_show_rn_trace = lookUp SLIT("-dshow-rn-trace")
opt_D_simplifier_stats = lookUp SLIT("-dsimplifier-stats")
opt_D_source_stats = lookUp SLIT("-dsource-stats")
opt_D_verbose_core2core = lookUp SLIT("-dverbose-simpl")
opt_D_verbose_stg2stg = lookUp SLIT("-dverbose-stg")
opt_DoCoreLinting = lookUp SLIT("-dcore-lint")
+opt_DoStgLinting = lookUp SLIT("-dstg-lint")
opt_DoSemiTagging = lookUp SLIT("-fsemi-tagging")
opt_DoTickyProfiling = lookUp SLIT("-fticky-ticky")
+opt_DoEtaReduction = lookUp SLIT("-fdo-eta-reduction")
+opt_EnsureSplittableC = lookUp SLIT("-fglobalise-toplev-names")
opt_FoldrBuildOn = lookUp SLIT("-ffoldr-build-on")
opt_FoldrBuildTrace = lookUp SLIT("-ffoldr-build-trace")
opt_ForConcurrent = lookUp SLIT("-fconcurrent")
opt_GranMacros = lookUp SLIT("-fgransim")
opt_GlasgowExts = lookUp SLIT("-fglasgow-exts")
-opt_Haskell_1_3 = lookUp SLIT("-fhaskell-1.3")
-opt_HideBuiltinNames = lookUp SLIT("-fhide-builtin-names")
-opt_HideMostBuiltinNames = lookUp SLIT("-fmin-builtin-names")
+--UNUSED:opt_Haskell_1_3 = lookUp SLIT("-fhaskell-1.3")
+opt_HiMap = lookup_str "-himap=" -- file saying where to look for .hi files
+opt_IgnoreIfacePragmas = lookUp SLIT("-fignore-interface-pragmas")
opt_IgnoreStrictnessPragmas = lookUp SLIT("-fignore-strictness-pragmas")
opt_IrrefutableEverything = lookUp SLIT("-firrefutable-everything")
opt_IrrefutableTuples = lookUp SLIT("-firrefutable-tuples")
-opt_WarnNameShadowing = lookUp SLIT("-fwarn-name-shadowing")
+opt_NoImplicitPrelude = lookUp SLIT("-fno-implicit-prelude")
opt_NumbersStrict = lookUp SLIT("-fnumbers-strict")
opt_OmitBlackHoling = lookUp SLIT("-dno-black-holing")
opt_OmitDefaultInstanceMethods = lookUp SLIT("-fomit-default-instance-methods")
opt_PprStyle_All = lookUp SLIT("-dppr-all")
opt_PprStyle_Debug = lookUp SLIT("-dppr-debug")
opt_PprStyle_User = lookUp SLIT("-dppr-user")
+opt_PprUserLength = lookup_def_int "-dppr-user-length" 5 --ToDo: give this a name
+opt_ProduceC = lookup_str "-C="
+opt_ProduceS = lookup_str "-S="
+opt_ProduceHi = lookup_str "-hifile=" -- the one to produce this time
opt_ReportWhyUnfoldingsDisallowed= lookUp SLIT("-freport-disallowed-unfoldings")
opt_SccProfilingOn = lookUp SLIT("-fscc-profiling")
opt_ShowImportSpecs = lookUp SLIT("-fshow-import-specs")
opt_ShowPragmaNameErrs = lookUp SLIT("-fshow-pragma-name-errs")
opt_SigsRequired = lookUp SLIT("-fsignatures-required")
+opt_SourceUnchanged = lookUp SLIT("-fsource-unchanged")
opt_SpecialiseAll = lookUp SLIT("-fspecialise-all")
opt_SpecialiseImports = lookUp SLIT("-fspecialise-imports")
opt_SpecialiseOverloaded = lookUp SLIT("-fspecialise-overloaded")
opt_SpecialiseTrace = lookUp SLIT("-ftrace-specialisation")
opt_SpecialiseUnboxed = lookUp SLIT("-fspecialise-unboxed")
opt_StgDoLetNoEscapes = lookUp SLIT("-flet-no-escape")
-opt_Verbose = lookUp SLIT("-v")
-opt_UsingGhcInternals = lookUp SLIT("-fusing-ghc-internals")
-opt_CompilingGhcInternals = maybeToBool maybe_CompilingGhcInternals
-maybe_CompilingGhcInternals = lookup_str "-fcompiling-ghc-internals="
-opt_SccGroup = lookup_str "-G="
-opt_ProduceC = lookup_str "-C="
-opt_ProduceS = lookup_str "-S="
-opt_ProduceHi = lookup_str "-hifile=" -- the one to produce this time
-opt_HiMap = lookup_str "-himap=" -- file saying where to look for .hi files
-opt_EnsureSplittableC = lookup_str "-fglobalise-toplev-names="
-opt_UnfoldingUseThreshold = lookup_int "-funfolding-use-threshold"
-opt_UnfoldingCreationThreshold = lookup_int "-funfolding-creation-threshold"
-opt_UnfoldingOverrideThreshold = lookup_int "-funfolding-override-threshold"
opt_ReturnInRegsThreshold = lookup_int "-freturn-in-regs-threshold"
+opt_SccGroup = lookup_str "-G="
+opt_Verbose = lookUp SLIT("-v")
+
+opt_InterfaceUnfoldThreshold = lookup_def_int "-funfolding-interface-threshold" iNTERFACE_UNFOLD_THRESHOLD
+opt_UnfoldingCreationThreshold = lookup_def_int "-funfolding-creation-threshold" uNFOLDING_CREATION_THRESHOLD
+opt_UnfoldingUseThreshold = lookup_def_int "-funfolding-use-threshold" uNFOLDING_USE_THRESHOLD
+opt_UnfoldingConDiscount = lookup_def_int "-funfolding-con-discount" uNFOLDING_CON_DISCOUNT_WEIGHT
+
+opt_LiberateCaseThreshold = lookup_def_int "-fliberate-case-threshold" lIBERATE_CASE_THRESHOLD
+opt_WarnNameShadowing = lookUp SLIT("-fwarn-name-shadowing")
+opt_WarnIncompletePatterns = not (lookUp SLIT("-fno-warn-incomplete-patterns"))
+opt_WarnOverlappedPatterns = not (lookUp SLIT("-fno-warn-overlapped-patterns"))
+opt_WarnUnusedNames = lookUp SLIT("-fwarn-unused-names")
+opt_PruneTyDecls = not (lookUp SLIT("-fno-prune-tydecls"))
+opt_PruneInstDecls = not (lookUp SLIT("-fno-prune-instdecls"))
+opt_D_show_unused_imports = lookUp SLIT("-dshow-unused-imports")
+opt_D_show_rn_stats = lookUp SLIT("-dshow-rn-stats")
+
+-- opt_UnfoldingOverrideThreshold = lookup_int "-funfolding-override-threshold"
+\end{code}
+
+
+\begin{code}
+all_toplev_ids_visible :: Bool
+all_toplev_ids_visible =
+ not opt_OmitInterfacePragmas || -- Pragmas can make them visible
+ opt_EnsureSplittableC || -- Splitting requires visiblilty
+ opt_AutoSccsOnAllToplevs -- ditto for profiling
+ -- (ToDo: fix up the auto-annotation
+ -- pass in the desugarer to avoid having
+ -- to do this)
-opt_NoImplicitPrelude = lookUp SLIT("-fno-implicit-prelude")
-opt_IgnoreIfacePragmas = lookUp SLIT("-fignore-interface-pragmas")
\end{code}
+
+
\begin{code}
classifyOpts :: ([CoreToDo], -- Core-to-Core processing spec
[StgToDo]) -- STG-to-STG processing spec
',' : _ -> IGNORE_ARG() -- it is for the parser
"-fsimplify" -> -- gather up SimplifierSwitches specially...
- simpl_sep opts [] core_td stg_td
+ simpl_sep opts defaultSimplSwitches core_td stg_td
"-fcalc-inlinings1"-> CORE_TD(CoreDoCalcInlinings1)
"-fcalc-inlinings2"-> CORE_TD(CoreDoCalcInlinings2)
"-fstatic-args" -> CORE_TD(CoreDoStaticArgs)
"-fstrictness" -> CORE_TD(CoreDoStrictness)
"-fspecialise" -> CORE_TD(CoreDoSpecialising)
- "-fdeforest" -> CORE_TD(CoreDoDeforest)
"-ffoldr-build-worker-wrapper" -> CORE_TD(CoreDoFoldrBuildWorkerWrapper)
"-ffoldr-build-ww-anal" -> CORE_TD(CoreDoFoldrBuildWWAnal)
= panic "simpl_sep []"
#endif
- -- The SimplifierSwitches should be delimited by "(" and ")".
+ -- The SimplifierSwitches should be delimited by "[" and "]".
simpl_sep (opt1:opts) simpl_sw core_td stg_td
= case (_UNPK_ opt1) of
- "(" -> ASSERT (null simpl_sw)
- simpl_sep opts [] core_td stg_td
- ")" -> let
+ "[" -> simpl_sep opts simpl_sw core_td stg_td
+ "]" -> let
this_simpl = CoreDoSimplify (isAmongSimpl simpl_sw)
in
sep opts (this_simpl : core_td) stg_td
"-ffloat-primops-ok" -> SIMPL_SW(SimplOkToFloatPrimOps)
"-falways-float-lets-from-lets" -> SIMPL_SW(SimplAlwaysFloatLetsFromLets)
"-fdo-case-elim" -> SIMPL_SW(SimplDoCaseElim)
- "-fdo-eta-reduction" -> SIMPL_SW(SimplDoEtaReduction)
"-fdo-lambda-eta-expansion" -> SIMPL_SW(SimplDoLambdaEtaExpansion)
"-fdo-foldr-build" -> SIMPL_SW(SimplDoFoldrBuild)
"-fdo-not-fold-back-append" -> SIMPL_SW(SimplDontFoldBackAppend)
"-fdo-inline-foldr-build" -> SIMPL_SW(SimplDoInlineFoldrBuild)
"-freuse-con" -> SIMPL_SW(SimplReuseCon)
"-fcase-of-case" -> SIMPL_SW(SimplCaseOfCase)
+ "-fcase-merge" -> SIMPL_SW(SimplCaseMerge)
"-flet-to-case" -> SIMPL_SW(SimplLetToCase)
"-fpedantic-bottoms" -> SIMPL_SW(SimplPedanticBottoms)
"-fkeep-spec-pragma-ids" -> SIMPL_SW(KeepSpecPragmaIds)
"-fno-let-from-strict-let" -> SIMPL_SW(SimplNoLetFromStrictLet)
o | starts_with_msi -> SIMPL_SW(MaxSimplifierIterations (read after_msi))
- | starts_with_suut -> SIMPL_SW(SimplUnfoldingUseThreshold (read after_suut))
- | starts_with_suct -> SIMPL_SW(SimplUnfoldingCreationThreshold (read after_suct))
where
- maybe_suut = startsWith "-fsimpl-uf-use-threshold" o
- maybe_suct = startsWith "-fsimpl-uf-creation-threshold" o
maybe_msi = startsWith "-fmax-simplifier-iterations" o
- starts_with_suut = maybeToBool maybe_suut
- starts_with_suct = maybeToBool maybe_suct
starts_with_msi = maybeToBool maybe_msi
- (Just after_suut) = maybe_suut
- (Just after_suct) = maybe_suct
(Just after_msi) = maybe_msi
_ -> -- NB: the driver is really supposed to handle bad options
tagOf_SimplSwitch SimplDoInlineFoldrBuild = ILIT(14)
tagOf_SimplSwitch IgnoreINLINEPragma = ILIT(15)
tagOf_SimplSwitch SimplDoLambdaEtaExpansion = ILIT(16)
-tagOf_SimplSwitch SimplDoEtaReduction = ILIT(18)
tagOf_SimplSwitch EssentialUnfoldingsOnly = ILIT(19)
tagOf_SimplSwitch ShowSimplifierProgress = ILIT(20)
tagOf_SimplSwitch (MaxSimplifierIterations _) = ILIT(21)
-tagOf_SimplSwitch (SimplUnfoldingUseThreshold _) = ILIT(22)
-tagOf_SimplSwitch (SimplUnfoldingCreationThreshold _) = ILIT(23)
-tagOf_SimplSwitch KeepSpecPragmaIds = ILIT(24)
-tagOf_SimplSwitch KeepUnusedBindings = ILIT(25)
-tagOf_SimplSwitch SimplNoLetFromCase = ILIT(26)
-tagOf_SimplSwitch SimplNoLetFromApp = ILIT(27)
-tagOf_SimplSwitch SimplNoLetFromStrictLet = ILIT(28)
-tagOf_SimplSwitch SimplDontFoldBackAppend = ILIT(29)
+tagOf_SimplSwitch KeepSpecPragmaIds = ILIT(25)
+tagOf_SimplSwitch KeepUnusedBindings = ILIT(26)
+tagOf_SimplSwitch SimplNoLetFromCase = ILIT(27)
+tagOf_SimplSwitch SimplNoLetFromApp = ILIT(28)
+tagOf_SimplSwitch SimplNoLetFromStrictLet = ILIT(29)
+tagOf_SimplSwitch SimplDontFoldBackAppend = ILIT(30)
+tagOf_SimplSwitch SimplCaseMerge = ILIT(31)
+tagOf_SimplSwitch SimplCaseScrutinee = ILIT(32)
+
-- If you add anything here, be sure to change lAST_SIMPL_SWITCH_TAG, too!
tagOf_SimplSwitch _ = panic# "tagOf_SimplSwitch"
-lAST_SIMPL_SWITCH_TAG = IBOX(tagOf_SimplSwitch SimplDontFoldBackAppend)
+lAST_SIMPL_SWITCH_TAG = IBOX(tagOf_SimplSwitch SimplCaseScrutinee)
\end{code}
%************************************************************************
%************************************************************************
\begin{code}
-#if __GLASGOW_HASKELL__ >= 200
+#if __GLASGOW_HASKELL__ == 201
# define ARRAY Array
# define LIFT GHCbase.Lift
# define SET_TO =:
(=:) a b = (a,b)
+#elif __GLASGOW_HASKELL__ >= 202
+# define ARRAY Array
+# define LIFT Lift
+# define SET_TO =:
+(=:) a b = (a,b)
#else
# define ARRAY _Array
# define LIFT _Lift
isAmongSimpl :: [SimplifierSwitch] -> SimplifierSwitch -> SwitchResult
-isAmongSimpl on_switches
+isAmongSimpl on_switches -- Switches mentioned later occur *earlier*
+ -- in the list; defaults right at the end.
= let
tidied_on_switches = foldl rm_dups [] on_switches
+ -- The fold*l* ensures that we keep the latest switches;
+ -- ie the ones that occur earliest in the list.
sw_tbl :: Array Int SwitchResult
}
where
mk_assoc_elem k@(MaxSimplifierIterations lvl) = IBOX(tagOf_SimplSwitch k) SET_TO SwInt lvl
- mk_assoc_elem k@(SimplUnfoldingUseThreshold i) = IBOX(tagOf_SimplSwitch k) SET_TO SwInt i
- mk_assoc_elem k@(SimplUnfoldingCreationThreshold i) = IBOX(tagOf_SimplSwitch k) SET_TO SwInt i
mk_assoc_elem k = IBOX(tagOf_SimplSwitch k) SET_TO SwBool True -- I'm here, Mom!
-- cannot have duplicates if we are going to use the array thing
-
rm_dups switches_so_far switch
= if switch `is_elem` switches_so_far
then switches_so_far
|| sw `is_elem` ss
\end{code}
+Default settings for simplifier switches
+
+\begin{code}
+defaultSimplSwitches = [MaxSimplifierIterations 1
+ ]
+\end{code}
+
%************************************************************************
%* *
\subsection{Misc functions for command-line options}