X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FCmdLineOpts.lhs;h=6cf2f3da374bcbcac9fa1b24cdb63fa9290caa83;hb=3a223cd2811d46295048b3a2dab11403ca291b20;hp=9227351f6d63157722c11407957b52f750477641;hpb=7d6569fbc7a7c8f9d45cf31bd6a7f699c86715fb;p=ghc-hetmet.git diff --git a/ghc/compiler/main/CmdLineOpts.lhs b/ghc/compiler/main/CmdLineOpts.lhs index 9227351..6cf2f3d 100644 --- a/ghc/compiler/main/CmdLineOpts.lhs +++ b/ghc/compiler/main/CmdLineOpts.lhs @@ -6,40 +6,51 @@ \begin{code} module CmdLineOpts ( - CoreToDo(..), - SimplifierSwitch(..), isAmongSimpl, - StgToDo(..), - SwitchResult(..), + CoreToDo(..), StgToDo(..), + SimplifierSwitch(..), + SimplifierMode(..), FloatOutSwitches(..), HscLang(..), DynFlag(..), -- needed non-abstractly by DriverFlags DynFlags(..), - defaultDynFlags, v_Static_hsc_opts, - intSwitchSet, - switchIsOn, isStaticHscFlag, - opt_PprStyle_NoPrags, - opt_PprStyle_RawTypes, - opt_PprUserLength, - opt_PprStyle_Debug, - - dopt, - - -- other dynamic flags - dopt_CoreToDo, - dopt_StgToDo, - dopt_HscLang, - dopt_OutName, + -- Manipulating DynFlags + defaultDynFlags, -- DynFlags + defaultHscLang, -- HscLang + dopt, -- DynFlag -> DynFlags -> Bool + dopt_set, dopt_unset, -- DynFlags -> DynFlag -> DynFlags + dopt_CoreToDo, -- DynFlags -> [CoreToDo] + dopt_StgToDo, -- DynFlags -> [StgToDo] + dopt_HscLang, -- DynFlags -> HscLang + dopt_OutName, -- DynFlags -> String + getOpts, -- (DynFlags -> [a]) -> IO [a] + setLang, + getVerbFlag, + + -- Manipulating the DynFlags state + getDynFlags, -- IO DynFlags + setDynFlags, -- DynFlags -> IO () + updDynFlags, -- (DynFlags -> DynFlags) -> IO () + dynFlag, -- (DynFlags -> a) -> IO a + setDynFlag, unSetDynFlag, -- DynFlag -> IO () + saveDynFlags, -- IO () + restoreDynFlags, -- IO DynFlags -- sets of warning opts standardWarnings, minusWOpts, minusWallOpts, + -- Output style options + opt_PprStyle_NoPrags, + opt_PprStyle_RawTypes, + opt_PprUserLength, + opt_PprStyle_Debug, + -- profiling opts opt_AutoSccsOnAllToplevs, opt_AutoSccsOnExportedToplevs, @@ -56,23 +67,24 @@ module CmdLineOpts ( opt_NumbersStrict, opt_Parallel, opt_SMP, - opt_NoMonomorphismRestriction, - opt_KeepStgTypes, + opt_RuntimeTypes, + opt_Flatten, -- optimisation opts opt_NoMethodSharing, opt_DoSemiTagging, - opt_FoldrBuildOn, opt_LiberateCaseThreshold, opt_StgDoLetNoEscapes, opt_UnfoldCasms, - opt_UsageSPOn, + opt_CprOff, + opt_RulesOff, opt_UnboxStrictFields, opt_SimplNoPreInlining, opt_SimplDoEtaReduction, opt_SimplDoLambdaEtaExpansion, opt_SimplCaseMerge, opt_SimplExcessPrecision, + opt_MaxWorkerArgs, -- Unfolding control opt_UF_CreationThreshold, @@ -95,30 +107,23 @@ module CmdLineOpts ( opt_NoHiCheck, opt_OmitBlackHoling, opt_OmitInterfacePragmas, - opt_NoPruneTyDecls, opt_NoPruneDecls, opt_Static, - opt_Unregisterised + opt_Unregisterised, + opt_EmitExternalCore ) where #include "HsVersions.h" -import Array ( array, (//) ) -import GlaExts -import IOExts ( IORef, readIORef ) import Constants -- Default values for some flags import Util -import FastTypes +import FastString ( FastString, mkFastString ) import Config - import Maybes ( firstJust ) -import Panic ( panic ) -#if __GLASGOW_HASKELL__ < 301 -import ArrBase ( Array(..) ) -#else -import PrelArr ( Array(..) ) -#endif +import GLAEXTS +import DATA_IOREF ( IORef, readIORef, writeIORef ) +import UNSAFE_IO ( unsafePerformIO ) \end{code} %************************************************************************ @@ -161,23 +166,17 @@ main loop (\tr{main/Main.lhs}), in the Core-to-Core processing loop %************************************************************************ \begin{code} -data SwitchResult - = SwBool Bool -- on/off - | SwString FAST_STRING -- nothing or a String - | SwInt Int -- nothing or an Int -\end{code} - -\begin{code} data CoreToDo -- These are diff core-to-core passes, -- which may be invoked in any order, -- as many times as you like. = CoreDoSimplify -- The core-to-core simplifier. - (SimplifierSwitch -> SwitchResult) + SimplifierMode + [SimplifierSwitch] -- Each run of the simplifier can take a different -- set of simplifier-specific flags. | CoreDoFloatInwards - | CoreDoFloatOutwards Bool -- True <=> float lambdas to top level + | CoreDoFloatOutwards FloatOutSwitches | CoreLiberateCase | CoreDoPrintCore | CoreDoStaticArgs @@ -185,10 +184,11 @@ data CoreToDo -- These are diff core-to-core passes, | CoreDoWorkerWrapper | CoreDoSpecialising | CoreDoSpecConstr - | CoreDoUSPInf - | CoreDoCPResult + | CoreDoOldStrictness | CoreDoGlomBinds | CoreCSE + | CoreDoRuleCheck Int{-CompilerPhase-} String -- Check for non-application of rules + -- matching this string | CoreDoNothing -- useful when building up lists of these things \end{code} @@ -202,12 +202,18 @@ data StgToDo \end{code} \begin{code} +data SimplifierMode -- See comments in SimplMonad + = SimplGently + | SimplPhase Int + data SimplifierSwitch = MaxSimplifierIterations Int - | SimplInlinePhase Int - | DontApplyRules | NoCaseOfCase - | SimplLetToCase + +data FloatOutSwitches + = FloatOutSw Bool -- True <=> float lambdas to top level + Bool -- True <=> float constants to top level, + -- even if they do not escape a lambda \end{code} %************************************************************************ @@ -235,13 +241,12 @@ data DynFlag | Opt_D_dump_simpl | Opt_D_dump_simpl_iterations | Opt_D_dump_spec - | Opt_D_dump_sat + | Opt_D_dump_prep | Opt_D_dump_stg | Opt_D_dump_stranal | Opt_D_dump_tc | Opt_D_dump_types | Opt_D_dump_rules - | Opt_D_dump_usagesp | Opt_D_dump_cse | Opt_D_dump_worker_wrapper | Opt_D_dump_rn_trace @@ -249,7 +254,9 @@ data DynFlag | Opt_D_dump_stix | Opt_D_dump_simpl_stats | Opt_D_dump_tc_trace + | Opt_D_dump_splices | Opt_D_dump_BCOs + | Opt_D_dump_vect | Opt_D_source_stats | Opt_D_verbose_core2core | Opt_D_verbose_stg2stg @@ -258,8 +265,8 @@ data DynFlag | Opt_D_dump_minimal_imports | Opt_DoCoreLinting | Opt_DoStgLinting - | Opt_DoUSPLinting + | Opt_WarnIsError -- -Werror; makes warnings fatal | Opt_WarnDuplicateExports | Opt_WarnHiShadows | Opt_WarnIncompletePatterns @@ -274,11 +281,18 @@ data DynFlag | Opt_WarnUnusedImports | Opt_WarnUnusedMatches | Opt_WarnDeprecations + | Opt_WarnMisc -- language opts | Opt_AllowOverlappingInstances | Opt_AllowUndecidableInstances + | Opt_AllowIncoherentInstances + | Opt_NoMonomorphismRestriction | Opt_GlasgowExts + | Opt_FFI + | Opt_PArr -- syntactic support for parallel arrays + | Opt_With -- deprecated keyword for implicit parms + | Opt_Arrows -- Arrow-notation syntax | Opt_Generics | Opt_NoImplicitPrelude @@ -291,37 +305,69 @@ data DynFlags = DynFlags { hscOutName :: String, -- name of the output file hscStubHOutName :: String, -- name of the .stub_h output file hscStubCOutName :: String, -- name of the .stub_c output file + extCoreName :: String, -- name of the .core output file verbosity :: Int, -- verbosity level cppFlag :: Bool, -- preprocess with cpp? + ppFlag :: Bool, -- preprocess with a Haskell Pp? stolen_x86_regs :: Int, cmdlineHcIncludes :: [String], -- -#includes -- options for particular phases opt_L :: [String], opt_P :: [String], + opt_F :: [String], opt_c :: [String], opt_a :: [String], opt_m :: [String], +#ifdef ILX + opt_I :: [String], + opt_i :: [String], +#endif -- hsc dynamic flags flags :: [DynFlag] } +data HscLang + = HscC + | HscAsm + | HscJava + | HscILX + | HscInterpreted + | HscNothing + deriving (Eq, Show) + +defaultHscLang + | cGhcWithNativeCodeGen == "YES" && + (prefixMatch "i386" cTARGETPLATFORM || + prefixMatch "sparc" cTARGETPLATFORM || + prefixMatch "powerpc" cTARGETPLATFORM) = HscAsm + | otherwise = HscC + defaultDynFlags = DynFlags { coreToDo = [], stgToDo = [], - hscLang = HscC, + hscLang = defaultHscLang, hscOutName = "", hscStubHOutName = "", hscStubCOutName = "", + extCoreName = "", verbosity = 0, cppFlag = False, + ppFlag = False, stolen_x86_regs = 4, cmdlineHcIncludes = [], opt_L = [], opt_P = [], + opt_F = [], opt_c = [], opt_a = [], opt_m = [], - flags = standardWarnings, +#ifdef ILX + opt_I = [], + opt_i = [], +#endif + flags = [Opt_Generics] ++ standardWarnings, + -- Generating the helper-functions for + -- generics is now on by default } {- @@ -347,20 +393,77 @@ dopt_StgToDo = stgToDo dopt_OutName :: DynFlags -> String dopt_OutName = hscOutName -data HscLang - = HscC - | HscAsm - | HscJava -#ifdef ILX - | HscILX -#endif - | HscInterpreted - deriving (Eq, Show) - dopt_HscLang :: DynFlags -> HscLang dopt_HscLang = hscLang + +dopt_set :: DynFlags -> DynFlag -> DynFlags +dopt_set dfs f = dfs{ flags = f : flags dfs } + +dopt_unset :: DynFlags -> DynFlag -> DynFlags +dopt_unset dfs f = dfs{ flags = filter (/= f) (flags dfs) } + +getOpts :: (DynFlags -> [a]) -> IO [a] + -- We add to the options from the front, so we need to reverse the list +getOpts opts = dynFlag opts >>= return . reverse + +-- we can only switch between HscC, HscAsmm, and HscILX with dynamic flags +-- (-fvia-C, -fasm, -filx respectively). +setLang l = updDynFlags (\ dfs -> case hscLang dfs of + HscC -> dfs{ hscLang = l } + HscAsm -> dfs{ hscLang = l } + HscILX -> dfs{ hscLang = l } + _ -> dfs) + +getVerbFlag = do + verb <- dynFlag verbosity + if verb >= 3 then return "-v" else return "" \end{code} +----------------------------------------------------------------------------- +-- Mess about with the mutable variables holding the dynamic arguments + +-- v_InitDynFlags +-- is the "baseline" dynamic flags, initialised from +-- the defaults and command line options, and updated by the +-- ':s' command in GHCi. +-- +-- v_DynFlags +-- is the dynamic flags for the current compilation. It is reset +-- to the value of v_InitDynFlags before each compilation, then +-- updated by reading any OPTIONS pragma in the current module. + +\begin{code} +GLOBAL_VAR(v_InitDynFlags, defaultDynFlags, DynFlags) +GLOBAL_VAR(v_DynFlags, defaultDynFlags, DynFlags) + +setDynFlags :: DynFlags -> IO () +setDynFlags dfs = writeIORef v_DynFlags dfs + +saveDynFlags :: IO () +saveDynFlags = do dfs <- readIORef v_DynFlags + writeIORef v_InitDynFlags dfs + +restoreDynFlags :: IO DynFlags +restoreDynFlags = do dfs <- readIORef v_InitDynFlags + writeIORef v_DynFlags dfs + return dfs + +getDynFlags :: IO DynFlags +getDynFlags = readIORef v_DynFlags + +updDynFlags :: (DynFlags -> DynFlags) -> IO () +updDynFlags f = do dfs <- readIORef v_DynFlags + writeIORef v_DynFlags (f dfs) + +dynFlag :: (DynFlags -> a) -> IO a +dynFlag f = do dflags <- readIORef v_DynFlags; return (f dflags) + +setDynFlag, unSetDynFlag :: DynFlag -> IO () +setDynFlag f = updDynFlags (\dfs -> dopt_set dfs f) +unSetDynFlag f = updDynFlags (\dfs -> dopt_unset dfs f) +\end{code} + + %************************************************************************ %* * \subsection{Warnings} @@ -381,7 +484,8 @@ minusWOpts [ Opt_WarnUnusedBinds, Opt_WarnUnusedMatches, Opt_WarnUnusedImports, - Opt_WarnIncompletePatterns + Opt_WarnIncompletePatterns, + Opt_WarnMisc ] minusWallOpts @@ -404,14 +508,14 @@ minusWallOpts -- main/DriverState. GLOBAL_VAR(v_Static_hsc_opts, [], [String]) -lookUp :: FAST_STRING -> Bool +lookUp :: FastString -> Bool lookup_int :: String -> Maybe Int lookup_def_int :: String -> Int -> Int lookup_def_float :: String -> Float -> Float lookup_str :: String -> Maybe String unpacked_static_opts = unsafePerformIO (readIORef v_Static_hsc_opts) -packed_static_opts = map _PK_ unpacked_static_opts +packed_static_opts = map mkFastString unpacked_static_opts lookUp sw = sw `elem` packed_static_opts @@ -440,7 +544,7 @@ unpacked_opts :: [String] unpacked_opts = concat $ map (expandAts) $ - map _UNPK_ argv -- NOT ARGV any more: v_Static_hsc_opts + map unpackFS argv -- NOT ARGV any more: v_Static_hsc_opts where expandAts ('@':fname) = words (unsafePerformIO (readFile fname)) expandAts l = [l] @@ -455,38 +559,40 @@ unpacked_opts = \begin{code} -- debugging opts -opt_PprStyle_NoPrags = lookUp SLIT("-dppr-noprags") -opt_PprStyle_Debug = lookUp SLIT("-dppr-debug") -opt_PprStyle_RawTypes = lookUp SLIT("-dppr-rawtypes") +opt_PprStyle_NoPrags = lookUp FSLIT("-dppr-noprags") +opt_PprStyle_Debug = lookUp FSLIT("-dppr-debug") +opt_PprStyle_RawTypes = lookUp FSLIT("-dppr-rawtypes") opt_PprUserLength = lookup_def_int "-dppr-user-length" 5 --ToDo: give this a name -- profiling opts -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_AutoSccsOnDicts = lookUp SLIT("-fauto-sccs-on-dicts") -opt_SccProfilingOn = lookUp SLIT("-fscc-profiling") -opt_DoTickyProfiling = lookUp SLIT("-fticky-ticky") +opt_AutoSccsOnAllToplevs = lookUp FSLIT("-fauto-sccs-on-all-toplevs") +opt_AutoSccsOnExportedToplevs = lookUp FSLIT("-fauto-sccs-on-exported-toplevs") +opt_AutoSccsOnIndividualCafs = lookUp FSLIT("-fauto-sccs-on-individual-cafs") +opt_AutoSccsOnDicts = lookUp FSLIT("-fauto-sccs-on-dicts") +opt_SccProfilingOn = lookUp FSLIT("-fscc-profiling") +opt_DoTickyProfiling = lookUp FSLIT("-fticky-ticky") -- language opts -opt_AllStrict = lookUp SLIT("-fall-strict") -opt_NoMonomorphismRestriction = lookUp SLIT("-fno-monomorphism-restriction") -opt_DictsStrict = lookUp SLIT("-fdicts-strict") -opt_IrrefutableTuples = lookUp SLIT("-firrefutable-tuples") +opt_AllStrict = lookUp FSLIT("-fall-strict") +opt_DictsStrict = lookUp FSLIT("-fdicts-strict") +opt_IrrefutableTuples = lookUp FSLIT("-firrefutable-tuples") opt_MaxContextReductionDepth = lookup_def_int "-fcontext-stack" mAX_CONTEXT_REDUCTION_DEPTH -opt_NumbersStrict = lookUp SLIT("-fnumbers-strict") -opt_Parallel = lookUp SLIT("-fparallel") -opt_SMP = lookUp SLIT("-fsmp") +opt_NumbersStrict = lookUp FSLIT("-fnumbers-strict") +opt_Parallel = lookUp FSLIT("-fparallel") +opt_SMP = lookUp FSLIT("-fsmp") +opt_Flatten = lookUp FSLIT("-fflatten") -- optimisation opts -opt_NoMethodSharing = lookUp SLIT("-fno-method-sharing") -opt_DoSemiTagging = lookUp SLIT("-fsemi-tagging") -opt_FoldrBuildOn = lookUp SLIT("-ffoldr-build-on") +opt_NoMethodSharing = lookUp FSLIT("-fno-method-sharing") +opt_DoSemiTagging = lookUp FSLIT("-fsemi-tagging") +opt_CprOff = lookUp FSLIT("-fcpr-off") +opt_RulesOff = lookUp FSLIT("-frules-off") + -- Switch off CPR analysis in the new demand analyser opt_LiberateCaseThreshold = lookup_def_int "-fliberate-case-threshold" (10::Int) -opt_StgDoLetNoEscapes = lookUp SLIT("-flet-no-escape") -opt_UnfoldCasms = lookUp SLIT("-funfold-casms-in-hi-file") -opt_UsageSPOn = lookUp SLIT("-fusagesp-on") -opt_UnboxStrictFields = lookUp SLIT("-funbox-strict-fields") +opt_StgDoLetNoEscapes = lookUp FSLIT("-flet-no-escape") +opt_UnfoldCasms = lookUp FSLIT("-funfold-casms-in-hi-file") +opt_UnboxStrictFields = lookUp FSLIT("-funbox-strict-fields") +opt_MaxWorkerArgs = lookup_def_int "-fmax-worker-args" (10::Int) {- The optional '-inpackage=P' flag tells what package @@ -494,44 +600,44 @@ opt_UnboxStrictFields = lookUp SLIT("-funbox-strict-fields") The Prelude, for example is compiled with '-inpackage std' -} opt_InPackage = case lookup_str "-inpackage=" of - Just p -> _PK_ p - Nothing -> SLIT("Main") -- The package name if none is specified + Just p -> mkFastString p + Nothing -> FSLIT("Main") -- The package name if none is specified -opt_EmitCExternDecls = lookUp SLIT("-femit-extern-decls") -opt_EnsureSplittableC = lookUp SLIT("-fglobalise-toplev-names") -opt_GranMacros = lookUp SLIT("-fgransim") -opt_HiVersion = read cProjectVersionInt :: Int +opt_EmitCExternDecls = lookUp FSLIT("-femit-extern-decls") +opt_EnsureSplittableC = lookUp FSLIT("-fglobalise-toplev-names") +opt_GranMacros = lookUp FSLIT("-fgransim") +opt_HiVersion = read (cProjectVersionInt ++ cProjectPatchLevel) :: Int opt_HistorySize = lookup_def_int "-fhistory-size" 20 -opt_IgnoreAsserts = lookUp SLIT("-fignore-asserts") -opt_IgnoreIfacePragmas = lookUp SLIT("-fignore-interface-pragmas") -opt_NoHiCheck = lookUp SLIT("-fno-hi-version-check") -opt_OmitBlackHoling = lookUp SLIT("-dno-black-holing") -opt_OmitInterfacePragmas = lookUp SLIT("-fomit-interface-pragmas") -opt_KeepStgTypes = lookUp SLIT("-fkeep-stg-types") +opt_IgnoreAsserts = lookUp FSLIT("-fignore-asserts") +opt_IgnoreIfacePragmas = lookUp FSLIT("-fignore-interface-pragmas") +opt_NoHiCheck = lookUp FSLIT("-fno-hi-version-check") +opt_OmitBlackHoling = lookUp FSLIT("-dno-black-holing") +opt_OmitInterfacePragmas = lookUp FSLIT("-fomit-interface-pragmas") +opt_RuntimeTypes = lookUp FSLIT("-fruntime-types") -- Simplifier switches -opt_SimplNoPreInlining = lookUp SLIT("-fno-pre-inlining") +opt_SimplNoPreInlining = lookUp FSLIT("-fno-pre-inlining") -- NoPreInlining is there just to see how bad things -- get if you don't do it! -opt_SimplDoEtaReduction = lookUp SLIT("-fdo-eta-reduction") -opt_SimplDoLambdaEtaExpansion = lookUp SLIT("-fdo-lambda-eta-expansion") -opt_SimplCaseMerge = lookUp SLIT("-fcase-merge") -opt_SimplExcessPrecision = lookUp SLIT("-fexcess-precision") +opt_SimplDoEtaReduction = lookUp FSLIT("-fdo-eta-reduction") +opt_SimplDoLambdaEtaExpansion = lookUp FSLIT("-fdo-lambda-eta-expansion") +opt_SimplCaseMerge = lookUp FSLIT("-fcase-merge") +opt_SimplExcessPrecision = lookUp FSLIT("-fexcess-precision") -- Unfolding control opt_UF_CreationThreshold = lookup_def_int "-funfolding-creation-threshold" (45::Int) opt_UF_UseThreshold = lookup_def_int "-funfolding-use-threshold" (8::Int) -- Discounts can be big opt_UF_FunAppDiscount = lookup_def_int "-funfolding-fun-discount" (6::Int) -- It's great to inline a fn opt_UF_KeenessFactor = lookup_def_float "-funfolding-keeness-factor" (1.5::Float) -opt_UF_UpdateInPlace = lookUp SLIT("-funfolding-update-in-place") +opt_UF_UpdateInPlace = lookUp FSLIT("-funfolding-update-in-place") opt_UF_CheapOp = ( 1 :: Int) -- Only one instruction; and the args are charged for opt_UF_DearOp = ( 4 :: Int) -opt_NoPruneDecls = lookUp SLIT("-fno-prune-decls") -opt_NoPruneTyDecls = lookUp SLIT("-fno-prune-tydecls") -opt_Static = lookUp SLIT("-static") -opt_Unregisterised = lookUp SLIT("-funregisterised") +opt_NoPruneDecls = lookUp FSLIT("-fno-prune-decls") +opt_Static = lookUp FSLIT("-static") +opt_Unregisterised = lookUp FSLIT("-funregisterised") +opt_EmitExternalCore = lookUp FSLIT("-fext-core") \end{code} %************************************************************************ @@ -555,11 +661,10 @@ isStaticHscFlag f = "fnumbers-strict", "fparallel", "fsmp", + "fflatten", "fsemi-tagging", - "ffoldr-build-on", "flet-no-escape", "funfold-casms-in-hi-file", - "fusagesp-on", "funbox-strict-fields", "femit-extern-decls", "fglobalise-toplev-names", @@ -569,9 +674,8 @@ isStaticHscFlag f = "fno-hi-version-check", "dno-black-holing", "fno-method-sharing", - "fno-monomorphism-restriction", "fomit-interface-pragmas", - "fkeep-stg-types", + "fruntime-types", "fno-pre-inlining", "fdo-eta-reduction", "fdo-lambda-eta-expansion", @@ -579,13 +683,17 @@ isStaticHscFlag f = "fexcess-precision", "funfolding-update-in-place", "fno-prune-decls", - "fno-prune-tydecls", "static", - "funregisterised" + "funregisterised", + "fext-core", + "frule-check", + "frules-off", + "fcpr-off" ] || any (flip prefixMatch f) [ "fcontext-stack", "fliberate-case-threshold", + "fmax-worker-args", "fhistory-size", "funfolding-creation-threshold", "funfolding-use-threshold", @@ -596,116 +704,11 @@ isStaticHscFlag f = %************************************************************************ %* * -\subsection{Switch ordering} -%* * -%************************************************************************ - -These things behave just like enumeration types. - -\begin{code} -instance Eq SimplifierSwitch where - a == b = tagOf_SimplSwitch a ==# tagOf_SimplSwitch b - -instance Ord SimplifierSwitch where - a < b = tagOf_SimplSwitch a <# tagOf_SimplSwitch b - a <= b = tagOf_SimplSwitch a <=# tagOf_SimplSwitch b - - -tagOf_SimplSwitch (SimplInlinePhase _) = _ILIT(1) -tagOf_SimplSwitch (MaxSimplifierIterations _) = _ILIT(2) -tagOf_SimplSwitch DontApplyRules = _ILIT(3) -tagOf_SimplSwitch SimplLetToCase = _ILIT(4) -tagOf_SimplSwitch NoCaseOfCase = _ILIT(5) - --- If you add anything here, be sure to change lAST_SIMPL_SWITCH_TAG, too! - -lAST_SIMPL_SWITCH_TAG = 5 -\end{code} - -%************************************************************************ -%* * -\subsection{Switch lookup} -%* * -%************************************************************************ - -\begin{code} -isAmongSimpl :: [SimplifierSwitch] -> SimplifierSwitch -> SwitchResult -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 - sw_tbl = (array (0, lAST_SIMPL_SWITCH_TAG) -- bounds... - all_undefined) - // defined_elems - - 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:) -#if __GLASGOW_HASKELL__ < 405 - case sw_tbl of { Array bounds_who_needs_'em stuff -> -#else - case sw_tbl of { Array _ _ stuff -> -#endif - \ switch -> - case (indexArray# stuff (tagOf_SimplSwitch switch)) of -#if __GLASGOW_HASKELL__ < 400 - Lift v -> v -#elif __GLASGOW_HASKELL__ < 403 - (# _, v #) -> v -#else - (# v #) -> v -#endif - } - where - mk_assoc_elem k@(MaxSimplifierIterations lvl) - = (iBox (tagOf_SimplSwitch k), SwInt lvl) - mk_assoc_elem k@(SimplInlinePhase n) - = (iBox (tagOf_SimplSwitch k), SwInt n) - 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 - else switch : switches_so_far - where - sw `is_elem` [] = False - sw `is_elem` (s:ss) = (tagOf_SimplSwitch sw) ==# (tagOf_SimplSwitch s) - || sw `is_elem` ss -\end{code} - - -%************************************************************************ -%* * \subsection{Misc functions for command-line options} %* * %************************************************************************ -\begin{code} -switchIsOn :: (switch -> SwitchResult) -> switch -> Bool - -switchIsOn lookup_fn switch - = case (lookup_fn switch) of - SwBool False -> False - _ -> True - -intSwitchSet :: (switch -> SwitchResult) - -> (Int -> switch) - -> Maybe Int - -intSwitchSet lookup_fn switch - = case (lookup_fn (switch (panic "intSwitchSet"))) of - SwInt int -> Just int - _ -> Nothing -\end{code} \begin{code} startsWith :: String -> String -> Maybe String