X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FCmdLineOpts.lhs;h=2d4b4e9d78b05484271986419736bdfc5f2d7ac4;hb=153b9cb9b11e05c4edb1b6bc0a7b972660e41f70;hp=f5a83b930292c2c09d29cab22ef3315063371c8d;hpb=37f7228038a8228e1c33c4eaa3c19cab840ad051;p=ghc-hetmet.git diff --git a/ghc/compiler/main/CmdLineOpts.lhs b/ghc/compiler/main/CmdLineOpts.lhs index f5a83b9..2d4b4e9 100644 --- a/ghc/compiler/main/CmdLineOpts.lhs +++ b/ghc/compiler/main/CmdLineOpts.lhs @@ -6,13 +6,14 @@ \begin{code} module CmdLineOpts ( - CoreToDo(..), StgToDo(..), + CoreToDo(..), buildCoreToDo, StgToDo(..), SimplifierSwitch(..), SimplifierMode(..), FloatOutSwitches(..), - HscLang(..), + HscTarget(..), DynFlag(..), -- needed non-abstractly by DriverFlags DynFlags(..), + PackageFlag(..), v_Static_hsc_opts, @@ -20,34 +21,21 @@ module CmdLineOpts ( -- 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_HscTarget, -- DynFlags -> HscTarget 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 + updOptLevel, -- sets of warning opts - standardWarnings, minusWOpts, minusWallOpts, -- Output style options - opt_PprStyle_NoPrags, - opt_PprStyle_RawTypes, opt_PprUserLength, opt_PprStyle_Debug, @@ -55,35 +43,25 @@ module CmdLineOpts ( opt_AutoSccsOnAllToplevs, opt_AutoSccsOnExportedToplevs, opt_AutoSccsOnIndividualCafs, - opt_AutoSccsOnDicts, opt_SccProfilingOn, opt_DoTickyProfiling, -- language opts - opt_AllStrict, opt_DictsStrict, opt_MaxContextReductionDepth, opt_IrrefutableTuples, - opt_NumbersStrict, opt_Parallel, opt_SMP, opt_RuntimeTypes, opt_Flatten, -- optimisation opts - opt_NoMethodSharing, - opt_DoSemiTagging, - opt_FoldrBuildOn, + opt_NoMethodSharing, + opt_NoStateHack, opt_LiberateCaseThreshold, - opt_StgDoLetNoEscapes, - opt_UnfoldCasms, opt_CprOff, - opt_UsageSPOn, - opt_UnboxStrictFields, + opt_RulesOff, opt_SimplNoPreInlining, - opt_SimplDoEtaReduction, - opt_SimplDoLambdaEtaExpansion, - opt_SimplCaseMerge, opt_SimplExcessPrecision, opt_MaxWorkerArgs, @@ -93,38 +71,35 @@ module CmdLineOpts ( opt_UF_FunAppDiscount, opt_UF_KeenessFactor, opt_UF_UpdateInPlace, - opt_UF_CheapOp, opt_UF_DearOp, -- misc opts - opt_InPackage, + opt_ErrorSpans, opt_EmitCExternDecls, opt_EnsureSplittableC, opt_GranMacros, opt_HiVersion, opt_HistorySize, - opt_IgnoreAsserts, - opt_IgnoreIfacePragmas, - opt_NoHiCheck, opt_OmitBlackHoling, - opt_OmitInterfacePragmas, - opt_NoPruneTyDecls, - opt_NoPruneDecls, opt_Static, opt_Unregisterised, - opt_EmitExternalCore + opt_EmitExternalCore, + opt_PIC ) where #include "HsVersions.h" +import {-# SOURCE #-} Packages (PackageState) +import DriverPhases ( HscTarget(..) ) import Constants -- Default values for some flags import Util import FastString ( FastString, mkFastString ) import Config import Maybes ( firstJust ) +import Panic ( ghcError, GhcException(UsageError) ) import GLAEXTS -import DATA_IOREF ( IORef, readIORef, writeIORef ) +import DATA_IOREF ( IORef, readIORef ) import UNSAFE_IO ( unsafePerformIO ) \end{code} @@ -186,7 +161,6 @@ data CoreToDo -- These are diff core-to-core passes, | CoreDoWorkerWrapper | CoreDoSpecialising | CoreDoSpecConstr - | CoreDoUSPInf | CoreDoOldStrictness | CoreDoGlomBinds | CoreCSE @@ -229,7 +203,7 @@ data FloatOutSwitches data DynFlag -- debugging flags - = Opt_D_dump_absC + = Opt_D_dump_cmm | Opt_D_dump_asm | Opt_D_dump_cpranal | Opt_D_dump_deriv @@ -239,7 +213,6 @@ data DynFlag | Opt_D_dump_inlinings | Opt_D_dump_occur_anal | Opt_D_dump_parsed - | Opt_D_dump_realC | Opt_D_dump_rn | Opt_D_dump_simpl | Opt_D_dump_simpl_iterations @@ -250,14 +223,14 @@ data DynFlag | 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 | Opt_D_dump_rn_stats - | Opt_D_dump_stix + | Opt_D_dump_opt_cmm | Opt_D_dump_simpl_stats | Opt_D_dump_tc_trace + | Opt_D_dump_if_trace | Opt_D_dump_splices | Opt_D_dump_BCOs | Opt_D_dump_vect @@ -269,11 +242,13 @@ data DynFlag | Opt_D_dump_minimal_imports | Opt_DoCoreLinting | Opt_DoStgLinting - | Opt_DoUSPLinting + | Opt_DoCmmLinting + | Opt_WarnIsError -- -Werror; makes warnings fatal | Opt_WarnDuplicateExports | Opt_WarnHiShadows | Opt_WarnIncompletePatterns + | Opt_WarnIncompletePatternsRecUpd | Opt_WarnMissingFields | Opt_WarnMissingMethods | Opt_WarnMissingSigs @@ -285,35 +260,56 @@ data DynFlag | Opt_WarnUnusedImports | Opt_WarnUnusedMatches | Opt_WarnDeprecations - | Opt_WarnMisc + | Opt_WarnDodgyImports + | Opt_WarnOrphans -- language opts | Opt_AllowOverlappingInstances | Opt_AllowUndecidableInstances | Opt_AllowIncoherentInstances - | Opt_NoMonomorphismRestriction + | Opt_MonomorphismRestriction | Opt_GlasgowExts | Opt_FFI | Opt_PArr -- syntactic support for parallel arrays - | Opt_With -- deprecated keyword for implicit parms + | Opt_Arrows -- Arrow-notation syntax + | Opt_TH + | Opt_ImplicitParams | Opt_Generics - | Opt_NoImplicitPrelude + | Opt_ImplicitPrelude + | Opt_ScopedTypeVariables + + -- optimisation opts + | Opt_Strictness + | Opt_FullLaziness + | Opt_CSE + | Opt_IgnoreInterfacePragmas + | Opt_OmitInterfacePragmas + | Opt_DoLambdaEtaExpansion + | Opt_IgnoreAsserts + | Opt_DoEtaReduction + | Opt_CaseMerge + | Opt_UnboxStrictFields deriving (Eq) data DynFlags = DynFlags { - coreToDo :: [CoreToDo], + coreToDo :: Maybe [CoreToDo], -- reserved for use with -Ofile stgToDo :: [StgToDo], - hscLang :: HscLang, + hscTarget :: HscTarget, 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 + optLevel :: Int, -- optimisation level + maxSimplIterations :: Int, -- max simplifier iterations + ruleCheck :: Maybe String, cppFlag :: Bool, -- preprocess with cpp? ppFlag :: Bool, -- preprocess with a Haskell Pp? + recompFlag :: Bool, -- True <=> recompilation checker is on stolen_x86_regs :: Int, cmdlineHcIncludes :: [String], -- -#includes + importPaths :: [FilePath], -- options for particular phases opt_L :: [String], @@ -327,36 +323,52 @@ data DynFlags = DynFlags { opt_i :: [String], #endif + -- ** Package flags + extraPkgConfs :: [FilePath], + -- The -package-conf flags given on the command line, in the order + -- they appeared. + + readUserPkgConf :: Bool, + -- Whether or not to read the user package database + -- (-no-user-package-conf). + + packageFlags :: [PackageFlag], + -- The -package and -hide-package flags from the command-line + + -- ** Package state + pkgState :: PackageState, + -- 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) = HscAsm - | otherwise = HscC +data PackageFlag + = ExposePackage String + | HidePackage String + | IgnorePackage String + +defaultHscTarget +#if defined(i386_TARGET_ARCH) || defined(sparc_TARGET_ARCH) || defined(powerpc_TARGET_ARCH) + | cGhcWithNativeCodeGen == "YES" = HscAsm +#endif + | otherwise = HscC defaultDynFlags = DynFlags { - coreToDo = [], stgToDo = [], - hscLang = defaultHscLang, + coreToDo = Nothing, stgToDo = [], + hscTarget = defaultHscTarget, hscOutName = "", hscStubHOutName = "", hscStubCOutName = "", extCoreName = "", - verbosity = 0, + verbosity = 0, + optLevel = 0, + maxSimplIterations = 4, + ruleCheck = Nothing, cppFlag = False, ppFlag = False, + recompFlag = True, stolen_x86_regs = 4, cmdlineHcIncludes = [], + importPaths = ["."], opt_L = [], opt_P = [], opt_F = [], @@ -367,9 +379,35 @@ defaultDynFlags = DynFlags { opt_I = [], opt_i = [], #endif - flags = [Opt_Generics] ++ standardWarnings, - -- Generating the helper-functions for - -- generics is now on by default + + extraPkgConfs = [], + readUserPkgConf = True, + packageFlags = [], + pkgState = error "pkgState", + + flags = [ + Opt_ImplicitPrelude, + Opt_MonomorphismRestriction, + Opt_Generics, + -- Generating the helper-functions for + -- generics is now on by default + Opt_Strictness, + -- strictness is on by default, but this only + -- applies to -O. + Opt_CSE, -- similarly for CSE. + Opt_FullLaziness, -- ...and for full laziness + + Opt_DoLambdaEtaExpansion, + -- This one is important for a tiresome reason: + -- we want to make sure that the bindings for data + -- constructors are eta-expanded. This is probably + -- a good thing anyway, but it seems fragile. + + -- and the default no-optimisation options: + Opt_IgnoreInterfacePragmas, + Opt_OmitInterfacePragmas + + ] ++ standardWarnings } {- @@ -386,7 +424,7 @@ defaultDynFlags = DynFlags { dopt :: DynFlag -> DynFlags -> Bool dopt f dflags = f `elem` (flags dflags) -dopt_CoreToDo :: DynFlags -> [CoreToDo] +dopt_CoreToDo :: DynFlags -> Maybe [CoreToDo] dopt_CoreToDo = coreToDo dopt_StgToDo :: DynFlags -> [StgToDo] @@ -395,8 +433,8 @@ dopt_StgToDo = stgToDo dopt_OutName :: DynFlags -> String dopt_OutName = hscOutName -dopt_HscLang :: DynFlags -> HscLang -dopt_HscLang = hscLang +dopt_HscTarget :: DynFlags -> HscTarget +dopt_HscTarget = hscTarget dopt_set :: DynFlags -> DynFlag -> DynFlags dopt_set dfs f = dfs{ flags = f : flags dfs } @@ -404,68 +442,178 @@ 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] +getOpts :: DynFlags -> (DynFlags -> [a]) -> [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. +getOpts dflags opts = reverse (opts dflags) -\begin{code} -GLOBAL_VAR(v_InitDynFlags, defaultDynFlags, DynFlags) -GLOBAL_VAR(v_DynFlags, defaultDynFlags, DynFlags) +getVerbFlag dflags + | verbosity dflags >= 3 = "-v" + | otherwise = "" -setDynFlags :: DynFlags -> IO () -setDynFlags dfs = writeIORef v_DynFlags dfs +----------------------------------------------------------------------------- +-- Setting the optimisation level -saveDynFlags :: IO () -saveDynFlags = do dfs <- readIORef v_DynFlags - writeIORef v_InitDynFlags dfs +updOptLevel n dfs + = if (n >= 1) + then dfs2{ hscTarget = HscC, optLevel = n } -- turn on -fvia-C with -O + else dfs2{ optLevel = n } + where + dfs1 = foldr (flip dopt_unset) dfs remove_dopts + dfs2 = foldr (flip dopt_set) dfs1 extra_dopts -restoreDynFlags :: IO DynFlags -restoreDynFlags = do dfs <- readIORef v_InitDynFlags - writeIORef v_DynFlags dfs - return dfs + extra_dopts + | n == 0 = opt_0_dopts + | otherwise = opt_1_dopts -getDynFlags :: IO DynFlags -getDynFlags = readIORef v_DynFlags + remove_dopts + | n == 0 = opt_1_dopts + | otherwise = opt_0_dopts + +opt_0_dopts = [ + Opt_IgnoreInterfacePragmas, + Opt_OmitInterfacePragmas + ] + +opt_1_dopts = [ + Opt_IgnoreAsserts, + Opt_DoEtaReduction, + Opt_CaseMerge + ] -updDynFlags :: (DynFlags -> DynFlags) -> IO () -updDynFlags f = do dfs <- readIORef v_DynFlags - writeIORef v_DynFlags (f dfs) +-- Core-to-core phases: -dynFlag :: (DynFlags -> a) -> IO a -dynFlag f = do dflags <- readIORef v_DynFlags; return (f dflags) +buildCoreToDo :: DynFlags -> [CoreToDo] +buildCoreToDo dflags = core_todo + where + opt_level = optLevel dflags + max_iter = maxSimplIterations dflags + strictness = dopt Opt_Strictness dflags + full_laziness = dopt Opt_FullLaziness dflags + cse = dopt Opt_CSE dflags + rule_check = ruleCheck dflags + + core_todo = + if opt_level == 0 then + [ + CoreDoSimplify (SimplPhase 0) [ + MaxSimplifierIterations max_iter + ] + ] -setDynFlag, unSetDynFlag :: DynFlag -> IO () -setDynFlag f = updDynFlags (\dfs -> dopt_set dfs f) -unSetDynFlag f = updDynFlags (\dfs -> dopt_unset dfs f) + else {- opt_level >= 1 -} [ + + -- initial simplify: mk specialiser happy: minimum effort please + CoreDoSimplify SimplGently [ + -- Simplify "gently" + -- Don't inline anything till full laziness has bitten + -- In particular, inlining wrappers inhibits floating + -- e.g. ...(case f x of ...)... + -- ==> ...(case (case x of I# x# -> fw x#) of ...)... + -- ==> ...(case x of I# x# -> case fw x# of ...)... + -- and now the redex (f x) isn't floatable any more + -- Similarly, don't apply any rules until after full + -- laziness. Notably, list fusion can prevent floating. + + NoCaseOfCase, + -- Don't do case-of-case transformations. + -- This makes full laziness work better + MaxSimplifierIterations max_iter + ], + + -- Specialisation is best done before full laziness + -- so that overloaded functions have all their dictionary lambdas manifest + CoreDoSpecialising, + + if full_laziness then CoreDoFloatOutwards (FloatOutSw False False) + else CoreDoNothing, + + CoreDoFloatInwards, + + CoreDoSimplify (SimplPhase 2) [ + -- Want to run with inline phase 2 after the specialiser to give + -- maximum chance for fusion to work before we inline build/augment + -- in phase 1. This made a difference in 'ansi' where an + -- overloaded function wasn't inlined till too late. + MaxSimplifierIterations max_iter + ], + case rule_check of { Just pat -> CoreDoRuleCheck 2 pat; Nothing -> CoreDoNothing }, + + CoreDoSimplify (SimplPhase 1) [ + -- Need inline-phase2 here so that build/augment get + -- inlined. I found that spectral/hartel/genfft lost some useful + -- strictness in the function sumcode' if augment is not inlined + -- before strictness analysis runs + MaxSimplifierIterations max_iter + ], + case rule_check of { Just pat -> CoreDoRuleCheck 1 pat; Nothing -> CoreDoNothing }, + + CoreDoSimplify (SimplPhase 0) [ + -- Phase 0: allow all Ids to be inlined now + -- This gets foldr inlined before strictness analysis + + MaxSimplifierIterations 3 + -- At least 3 iterations because otherwise we land up with + -- huge dead expressions because of an infelicity in the + -- simpifier. + -- let k = BIG in foldr k z xs + -- ==> let k = BIG in letrec go = \xs -> ...(k x).... in go xs + -- ==> let k = BIG in letrec go = \xs -> ...(BIG x).... in go xs + -- Don't stop now! + + ], + case rule_check of { Just pat -> CoreDoRuleCheck 0 pat; Nothing -> CoreDoNothing }, + +#ifdef OLD_STRICTNESS + CoreDoOldStrictness +#endif + if strictness then CoreDoStrictness else CoreDoNothing, + CoreDoWorkerWrapper, + CoreDoGlomBinds, + + CoreDoSimplify (SimplPhase 0) [ + MaxSimplifierIterations max_iter + ], + + if full_laziness then + CoreDoFloatOutwards (FloatOutSw False -- Not lambdas + True) -- Float constants + else CoreDoNothing, + -- nofib/spectral/hartel/wang doubles in speed if you + -- do full laziness late in the day. It only happens + -- after fusion and other stuff, so the early pass doesn't + -- catch it. For the record, the redex is + -- f_el22 (f_el21 r_midblock) + + + -- We want CSE to follow the final full-laziness pass, because it may + -- succeed in commoning up things floated out by full laziness. + -- CSE used to rely on the no-shadowing invariant, but it doesn't any more + + if cse then CoreCSE else CoreDoNothing, + + CoreDoFloatInwards, + +-- Case-liberation for -O2. This should be after +-- strictness analysis and the simplification which follows it. + + case rule_check of { Just pat -> CoreDoRuleCheck 0 pat; Nothing -> CoreDoNothing }, + + if opt_level >= 2 then + CoreLiberateCase + else + CoreDoNothing, + if opt_level >= 2 then + CoreDoSpecConstr + else + CoreDoNothing, + + -- Final clean-up simplification: + CoreDoSimplify (SimplPhase 0) [ + MaxSimplifierIterations max_iter + ] + ] \end{code} - %************************************************************************ %* * \subsection{Warnings} @@ -487,7 +635,7 @@ minusWOpts Opt_WarnUnusedMatches, Opt_WarnUnusedImports, Opt_WarnIncompletePatterns, - Opt_WarnMisc + Opt_WarnDodgyImports ] minusWallOpts @@ -495,7 +643,8 @@ minusWallOpts [ Opt_WarnTypeDefaults, Opt_WarnNameShadowing, Opt_WarnMissingSigs, - Opt_WarnHiShadows + Opt_WarnHiShadows, + Opt_WarnOrphans ] \end{code} @@ -511,7 +660,6 @@ minusWallOpts GLOBAL_VAR(v_Static_hsc_opts, [], [String]) 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 @@ -521,19 +669,32 @@ packed_static_opts = map mkFastString unpacked_static_opts lookUp sw = sw `elem` packed_static_opts -lookup_str sw = firstJust (map (startsWith sw) unpacked_static_opts) - -lookup_int sw = case (lookup_str sw) of - Nothing -> Nothing - Just xx -> Just (read xx) +-- (lookup_str "foo") looks for the flag -foo=X or -fooX, +-- and returns the string X +lookup_str sw + = case firstJust (map (startsWith sw) unpacked_static_opts) of + Just ('=' : str) -> Just str + Just str -> Just str + Nothing -> Nothing lookup_def_int sw def = case (lookup_str sw) of Nothing -> def -- Use default - Just xx -> read xx + Just xx -> try_read sw xx lookup_def_float sw def = case (lookup_str sw) of Nothing -> def -- Use default - Just xx -> read xx + Just xx -> try_read sw xx + + +try_read :: Read a => String -> String -> a +-- (try_read sw str) tries to read s; if it fails, it +-- bleats about flag sw +try_read sw str + = case reads str of + ((x,_):_) -> x -- Be forgiving: ignore trailing goop, and alternative parses + [] -> ghcError (UsageError ("Malformed argument " ++ str ++ " for flag " ++ sw)) + -- ToDo: hack alert. We should really parse the arugments + -- and announce errors in a more civilised way. {- @@ -561,70 +722,45 @@ unpacked_opts = \begin{code} -- debugging opts -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 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 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 FSLIT("-fnumbers-strict") opt_Parallel = lookUp FSLIT("-fparallel") opt_SMP = lookUp FSLIT("-fsmp") opt_Flatten = lookUp FSLIT("-fflatten") -- optimisation opts +opt_NoStateHack = lookUp FSLIT("-fno-state-hack") opt_NoMethodSharing = lookUp FSLIT("-fno-method-sharing") -opt_DoSemiTagging = lookUp FSLIT("-fsemi-tagging") -opt_FoldrBuildOn = lookUp FSLIT("-ffoldr-build-on") 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 FSLIT("-flet-no-escape") -opt_UnfoldCasms = lookUp FSLIT("-funfold-casms-in-hi-file") -opt_UsageSPOn = lookUp FSLIT("-fusagesp-on") -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 - we are compiling this module for. - The Prelude, for example is compiled with '-inpackage std' --} -opt_InPackage = case lookup_str "-inpackage=" of - Just p -> mkFastString p - Nothing -> FSLIT("Main") -- The package name if none is specified - 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 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 FSLIT("-fno-pre-inlining") -- NoPreInlining is there just to see how bad things -- get if you don't do it! -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 @@ -634,14 +770,16 @@ opt_UF_FunAppDiscount = lookup_def_int "-funfolding-fun-discount" (6::Int) - opt_UF_KeenessFactor = lookup_def_float "-funfolding-keeness-factor" (1.5::Float) 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 FSLIT("-fno-prune-decls") -opt_NoPruneTyDecls = lookUp FSLIT("-fno-prune-tydecls") opt_Static = lookUp FSLIT("-static") opt_Unregisterised = lookUp FSLIT("-funregisterised") opt_EmitExternalCore = lookUp FSLIT("-fext-core") + +-- Include full span info in error messages, instead of just the start position. +opt_ErrorSpans = lookUp FSLIT("-ferror-spans") + +opt_PIC = lookUp FSLIT("-fPIC") \end{code} %************************************************************************ @@ -662,39 +800,30 @@ isStaticHscFlag f = "fall-strict", "fdicts-strict", "firrefutable-tuples", - "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", "fgransim", - "fignore-asserts", - "fignore-interface-pragmas", "fno-hi-version-check", "dno-black-holing", "fno-method-sharing", - "fomit-interface-pragmas", + "fno-state-hack", "fruntime-types", "fno-pre-inlining", - "fdo-eta-reduction", - "fdo-lambda-eta-expansion", - "fcase-merge", "fexcess-precision", "funfolding-update-in-place", - "fno-prune-decls", - "fno-prune-tydecls", "static", "funregisterised", "fext-core", "frule-check", - "fcpr-off" + "frules-off", + "fcpr-off", + "ferror-spans", + "fPIC" ] || any (flip prefixMatch f) [ "fcontext-stack", @@ -724,10 +853,4 @@ startsWith [] str = Just str startsWith (c:cs) (s:ss) = if c /= s then Nothing else startsWith cs ss startsWith _ [] = Nothing - -endsWith :: String -> String -> Maybe String -endsWith cs ss - = case (startsWith (reverse cs) (reverse ss)) of - Nothing -> Nothing - Just rs -> Just (reverse rs) \end{code}