\section[CmdLineOpts]{Things to do with command-line options}
\begin{code}
-#include "HsVersions.h"
+module CmdLineOpts (
+ CoreToDo(..),
+ SimplifierSwitch(..),
+ StgToDo(..),
+ SwitchResult(..),
+ classifyOpts,
+
+ intSwitchSet,
+ switchIsOn,
+
+ maybe_CompilingGhcInternals,
+ opt_AllStrict,
+ opt_AllowOverlappingInstances,
+ opt_AutoSccsOnAllToplevs,
+ opt_AutoSccsOnExportedToplevs,
+ opt_AutoSccsOnIndividualCafs,
+ opt_CompilingGhcInternals,
+ opt_D_dump_absC,
+ opt_D_dump_asm,
+ opt_D_dump_deriv,
+ opt_D_dump_ds,
+ opt_D_dump_flatC,
+ opt_D_dump_occur_anal,
+ opt_D_dump_rdr,
+ 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_show_rn_imports,
+ 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_HiMap,
+ opt_IgnoreIfacePragmas,
+ opt_IrrefutableTuples,
+ opt_LiberateCaseThreshold,
+ opt_MultiParamClasses,
+ opt_NoHiCheck,
+ opt_NoImplicitPrelude,
+ opt_NumbersStrict,
+ opt_OmitBlackHoling,
+ opt_OmitInterfacePragmas,
+ opt_PprStyle_All,
+ opt_PprStyle_Debug,
+ opt_PprStyle_User, -- ToDo: rm
+ opt_PprUserLength,
+ opt_ProduceC,
+ opt_ProduceHi,
+ opt_ProduceS,
+ opt_ReportWhyUnfoldingsDisallowed,
+ opt_ReturnInRegsThreshold,
+ opt_SccGroup,
+ opt_SccProfilingOn,
+ opt_ShowImportSpecs,
+ opt_SigsRequired,
+ opt_SourceUnchanged,
+ opt_SpecialiseAll,
+ opt_SpecialiseImports,
+ opt_SpecialiseOverloaded,
+ opt_SpecialiseTrace,
+ opt_SpecialiseUnboxed,
+ opt_StgDoLetNoEscapes,
+
+ opt_InterfaceUnfoldThreshold,
+ opt_UnfoldingCreationThreshold,
+ opt_UnfoldingConDiscount,
+ opt_UnfoldingUseThreshold,
+ opt_UnfoldingKeenessFactor,
+
+ opt_Verbose,
+ opt_WarnNameShadowing,
+ opt_WarnUnusedMatches,
+ opt_WarnUnusedBinds,
+ opt_WarnUnusedImports,
+ opt_WarnIncompletePatterns,
+ opt_WarnOverlappingPatterns,
+ opt_WarnSimplePatterns,
+ opt_WarnMissingMethods,
+ opt_WarnDuplicateExports,
+ opt_WarnHiShadows,
+ opt_PruneTyDecls, opt_PruneInstDecls,
+ opt_D_show_rn_stats
+ ) where
-module CmdLineOpts where
+#include "HsVersions.h"
-import PreludeGlaST -- bad bad bad boy, Will (_Array internals)
+import Array ( array, (//) )
+import GlaExts
import Argv
+import Constants -- Default values for some flags
-CHK_Ubiq() -- debugging consistency check
+import Maybes ( assocMaybe, firstJust, maybeToBool )
+import Util ( startsWith, panic, panic# )
-import Maybes ( assocMaybe, firstJust, maybeToBool, Maybe(..) )
-import Util ( startsWith, panic, panic#, assertPanic )
+#if __GLASGOW_HASKELL__ < 301
+import ArrBase ( Array(..) )
+#else
+import PrelArr ( Array(..) )
+#endif
\end{code}
A command-line {\em switch} is (generally) either on or off; e.g., the
| CoreDoStaticArgs
| CoreDoStrictness
| CoreDoSpecialising
- | CoreDoDeforest
- | CoreDoAutoCostCentres
| 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
-
| SimplNoLetFromCase -- used when turning off floating entirely
| SimplNoLetFromApp -- (for experimentation only) WDP 95/10
| SimplNoLetFromStrictLet
-- 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
+
+ | SimplCloneBinds -- This flag controls whether the simplifier should
+ -- always clone binder ids when creating expression
+ -- copies. The default is NO, but it needs to be turned on
+ -- prior to floating binders outwards.
+ -- (see comment inside SimplVar.simplBinder)
\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_def_float :: String -> Float -> Float
+lookup_str :: String -> Maybe String
-lookup sw = maybeToBool (assoc_opts sw)
+lookUp sw = maybeToBool (assoc_opts sw)
lookup_str sw = firstJust (map (startsWith sw) unpacked_opts)
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
+
+lookup_def_float 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
+
+{-
+ Putting the compiler options into temporary at-files
+ may turn out to be necessary later on if we turn hsc into
+ a pure Win32 application where I think there's a command-line
+ length limit of 255. unpacked_opts understands the @ option.
+
+assoc_opts = assocMaybe [ (_PK_ a, True) | a <- unpacked_opts ]
+
+unpacked_opts :: [String]
+unpacked_opts =
+ concat $
+ map (expandAts) $
+ map _UNPK_ argv
+ where
+ expandAts ('@':fname) = words (unsafePerformIO (readFile fname))
+ expandAts l = [l]
+-}
\end{code}
\begin{code}
-opt_AllDemanded = lookup SLIT("-fall-demanded")
-opt_AllStrict = lookup SLIT("-fall-strict")
-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_CompilingPrelude = lookup SLIT("-prelude")
-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_occur_anal = lookup SLIT("-ddump-occur-anal")
-opt_D_dump_rdr = lookup SLIT("-ddump-rdr")
-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_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_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_DoSemiTagging = lookup SLIT("-fsemi-tagging")
-opt_DoTickyProfiling = lookup SLIT("-fticky-ticky")
-opt_EmitArityChecks = lookup SLIT("-darity-checks")
-opt_FoldrBuildOn = lookup SLIT("-ffoldr-build-on")
-opt_FoldrBuildTrace = lookup SLIT("-ffoldr-build-trace")
-opt_ForConcurrent = lookup SLIT("-fconcurrent")
-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")
-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_NumbersStrict = lookup SLIT("-fnumbers-strict")
-opt_OmitBlackHoling = lookup SLIT("-dno-black-holing")
-opt_OmitDefaultInstanceMethods = lookup SLIT("-fomit-default-instance-methods")
-opt_OmitInterfacePragmas = lookup SLIT("-fomit-interface-pragmas")
-opt_OmitReexportedInstances = lookup SLIT("-fomit-reexported-instances")
-opt_PprStyle_All = lookup SLIT("-dppr-all")
-opt_PprStyle_Debug = lookup SLIT("-dppr-debug")
-opt_PprStyle_User = lookup SLIT("-dppr-user")
-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_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_SccGroup = lookup_str "-G="
+opt_AllStrict = lookUp SLIT("-fall-strict")
+opt_AllowOverlappingInstances = lookUp SLIT("-fallow-overlapping-instances")
+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_deriv = lookUp SLIT("-ddump-deriv")
+opt_D_dump_ds = lookUp SLIT("-ddump-ds")
+opt_D_dump_flatC = lookUp SLIT("-ddump-flatC")
+opt_D_dump_occur_anal = lookUp SLIT("-ddump-occur-anal")
+opt_D_dump_rdr = lookUp SLIT("-ddump-rdr")
+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_show_rn_imports = lookUp SLIT("-dshow-rn-imports")
+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_ForConcurrent = lookUp SLIT("-fconcurrent")
+opt_GranMacros = lookUp SLIT("-fgransim")
+opt_GlasgowExts = lookUp SLIT("-fglasgow-exts")
+opt_HiMap = lookup_str "-himap=" -- file saying where to look for .hi files
+opt_IgnoreIfacePragmas = lookUp SLIT("-fignore-interface-pragmas")
+opt_IrrefutableTuples = lookUp SLIT("-firrefutable-tuples")
+opt_MultiParamClasses = opt_GlasgowExts
+opt_NoImplicitPrelude = lookUp SLIT("-fno-implicit-prelude")
+opt_NoHiCheck = lookUp SLIT("-fno-hi-version-check")
+opt_NumbersStrict = lookUp SLIT("-fnumbers-strict")
+opt_OmitBlackHoling = lookUp SLIT("-dno-black-holing")
+opt_OmitInterfacePragmas = lookUp SLIT("-fomit-interface-pragmas")
+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_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_ReportWhyUnfoldingsDisallowed= lookUp SLIT("-freport-disallowed-unfoldings")
+opt_SccProfilingOn = lookUp SLIT("-fscc-profiling")
+opt_ShowImportSpecs = lookUp SLIT("-fshow-import-specs")
+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_ReturnInRegsThreshold = lookup_int "-freturn-in-regs-threshold"
-
-opt_NoImplicitPrelude = lookup SLIT("-fno-implicit-prelude")
-opt_IgnoreIfacePragmas = lookup SLIT("-fignore-interface-pragmas")
+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_UnfoldingKeenessFactor = lookup_def_float "-funfolding-keeness-factor" uNFOLDING_KEENESS_FACTOR
+opt_WarnNameShadowing = lookUp SLIT("-fwarn-name-shadowing")
+opt_WarnHiShadows = lookUp SLIT("-fwarn-hi-shadowing")
+opt_WarnIncompletePatterns = lookUp SLIT("-fwarn-incomplete-patterns")
+opt_WarnOverlappingPatterns = lookUp SLIT("-fwarn-overlapping-patterns")
+opt_WarnSimplePatterns = lookUp SLIT("-fwarn-simple-patterns")
+opt_WarnUnusedMatches = lookUp SLIT("-fwarn-unused-matches")
+opt_WarnUnusedBinds = lookUp SLIT("-fwarn-unused-binds")
+opt_WarnUnusedImports = lookUp SLIT("-fwarn-unused-imports")
+opt_WarnMissingMethods = lookUp SLIT("-fwarn-missing-methods")
+opt_WarnDuplicateExports = lookUp SLIT("-fwarn-duplicate-exports")
+opt_PruneTyDecls = not (lookUp SLIT("-fno-prune-tydecls"))
+opt_PruneInstDecls = not (lookUp SLIT("-fno-prune-instdecls"))
+opt_D_show_rn_stats = lookUp SLIT("-dshow-rn-stats")
+
+-- opt_UnfoldingOverrideThreshold = lookup_int "-funfolding-override-threshold"
\end{code}
\begin{code}
classifyOpts = sep argv [] [] -- accumulators...
where
- sep :: [FAST_STRING] -- cmd-line opts (input)
+ sep :: [FAST_STRING] -- cmd-line opts (input)
-> [CoreToDo] -> [StgToDo] -- to_do accumulators
-> ([CoreToDo], [StgToDo]) -- result
# define CORE_TD(to_do) sep opts (to_do:core_td) stg_td
# define STG_TD(to_do) sep opts core_td (to_do:stg_td)
-# define IGNORE_ARG() sep opts core_td stg_td
sep (opt1:opts) core_td stg_td
- =
- case (_UNPK_ opt1) of -- the non-"just match a string" options are at the end...
-
- ',' : _ -> IGNORE_ARG() -- it is for the parser
+ = case (_UNPK_ opt1) of -- the non-"just match a string" options are at the end...
+ ',' : _ -> sep opts core_td stg_td -- 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)
- "-fadd-auto-sccs" -> CORE_TD(CoreDoAutoCostCentres)
"-ffoldr-build-worker-wrapper" -> CORE_TD(CoreDoFoldrBuildWorkerWrapper)
"-ffoldr-build-ww-anal" -> CORE_TD(CoreDoFoldrBuildWWAnal)
"-fmassage-stg-for-profiling" -> STG_TD(StgDoMassageForProfiling)
_ -> -- NB: the driver is really supposed to handle bad options
- IGNORE_ARG()
+ sep opts core_td stg_td
----------------
- simpl_sep :: [FAST_STRING] -- cmd-line opts (input)
- -> [SimplifierSwitch] -- simplifier-switch accumulator
- -> [CoreToDo] -> [StgToDo] -- to_do accumulators
- -> ([CoreToDo], [StgToDo]) -- result
+ simpl_sep :: [FAST_STRING] -- cmd-line opts (input)
+ -> [SimplifierSwitch] -- simplifier-switch accumulator
+ -> [CoreToDo] -> [StgToDo] -- to_do accumulators
+ -> ([CoreToDo], [StgToDo]) -- result
-- "simpl_sep" tailcalls "sep" once it's seen one set
-- of SimplifierSwitches for a CoreDoSimplify.
= 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)
- "-fkeep-unused-bindings" -> SIMPL_SW(KeepUnusedBindings)
"-fmay-delete-conjurable-ids" -> SIMPL_SW(SimplMayDeleteConjurableIds)
"-fessential-unfoldings-only" -> SIMPL_SW(EssentialUnfoldingsOnly)
"-fignore-inline-pragma" -> SIMPL_SW(IgnoreINLINEPragma)
"-fno-let-from-case" -> SIMPL_SW(SimplNoLetFromCase)
"-fno-let-from-app" -> SIMPL_SW(SimplNoLetFromApp)
"-fno-let-from-strict-let" -> SIMPL_SW(SimplNoLetFromStrictLet)
+ "-fclone-binds" -> SIMPL_SW(SimplCloneBinds)
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 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)
+tagOf_SimplSwitch SimplCloneBinds = ILIT(33)
+
-- 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 SimplCloneBinds)
\end{code}
%************************************************************************
\begin{code}
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
all_undefined)
// defined_elems
- all_undefined = [ i := SwBool False | i <- [0 .. lAST_SIMPL_SWITCH_TAG ] ]
+ all_undefined = [ (i, SwBool False) | i <- [0 .. lAST_SIMPL_SWITCH_TAG ] ]
defined_elems = map mk_assoc_elem tidied_on_switches
in
-- (avoid some unboxing, bounds checking, and other horrible things:)
- case sw_tbl of { _Array bounds_who_needs_'em stuff ->
+ case sw_tbl of { Array bounds_who_needs_'em stuff ->
\ switch ->
case (indexArray# stuff (tagOf_SimplSwitch switch)) of
- _Lift v -> v
+ Lift v -> v
}
where
- mk_assoc_elem k@(MaxSimplifierIterations lvl) = IBOX(tagOf_SimplSwitch k) := SwInt lvl
- mk_assoc_elem k@(SimplUnfoldingUseThreshold i) = IBOX(tagOf_SimplSwitch k) := SwInt i
- mk_assoc_elem k@(SimplUnfoldingCreationThreshold i) = IBOX(tagOf_SimplSwitch k) := SwInt i
+ mk_assoc_elem k@(MaxSimplifierIterations lvl) = (IBOX(tagOf_SimplSwitch k), SwInt lvl)
- mk_assoc_elem k = IBOX(tagOf_SimplSwitch k) := SwBool True -- I'm here, Mom!
+ mk_assoc_elem k = (IBOX(tagOf_SimplSwitch k), 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}
SwBool False -> False
_ -> True
-stringSwitchSet :: (switch -> SwitchResult)
- -> (FAST_STRING -> switch)
- -> Maybe FAST_STRING
-
-stringSwitchSet lookup_fn switch
- = case (lookup_fn (switch (panic "stringSwitchSet"))) of
- SwString str -> Just str
- _ -> Nothing
-
intSwitchSet :: (switch -> SwitchResult)
-> (Int -> switch)
-> Maybe Int
projects / ghc-hetmet.git / blobdiff