import Control.Monad ( when )
import Data.Char
+import Data.List ( intersperse )
import System.FilePath
import System.IO ( stderr, hPutChar )
| Opt_UnboxStrictFields
| Opt_MethodSharing
| Opt_DictsCheap
+ | Opt_InlineIfEnoughArgs
| Opt_EnableRewriteRules -- Apply rewrite rules during simplification
| Opt_Vectorise
| Opt_RegsGraph -- do graph coloring register allocation
| Opt_DryRun
| Opt_DoAsmMangling
| Opt_ExcessPrecision
+ | Opt_EagerBlackHoling
| Opt_ReadUserPackageConf
| Opt_NoHsMain
| Opt_SplitObjs
| Opt_PrintBindContents
| Opt_GenManifest
| Opt_EmbedManifest
+
+ -- temporary flags
+ | Opt_RunCPS
| Opt_RunCPSZ
| Opt_ConvertToZipCfgAndBack
| Opt_AutoLinkPackages
| Opt_ImplicitImportQualified
+ | Opt_TryNewCodeGen
-- keeping stuff
| Opt_KeepHiDiffs
haddockOptions :: Maybe String
}
+-- | The target code type of the compilation (if any).
+--
+-- 'HscNothing' can be used to avoid generating any output, however, note
+-- that:
+--
+-- * This will not run the desugaring step, thus no warnings generated in
+-- this step will be output. In particular, this includes warnings
+-- related to pattern matching.
+--
+-- * At the moment switching from 'HscNothing' to 'HscInterpreted' without
+-- unloading first is not safe. To unload use
+-- @GHC.setTargets [] >> GHC.load LoadAllTargets@.
+--
data HscTarget
= HscC
| HscAsm
opt_L = [],
opt_P = (if opt_PIC
- then ["-D__PIC__"]
+ then ["-D__PIC__", "-U __PIC__"] -- this list is reversed
else []),
opt_F = [],
opt_c = [],
| verbosity dflags >= 3 = "-v"
| otherwise = ""
-setObjectDir, setHiDir, setStubDir, setObjectSuf, setHiSuf, setHcSuf, parseDynLibLoaderMode,
+setObjectDir, setHiDir, setStubDir, setOutputDir,
+ setObjectSuf, setHiSuf, setHcSuf, parseDynLibLoaderMode,
setPgmP, setPgmL, setPgmF, setPgmc, setPgmm, setPgms, setPgma, setPgml, setPgmdll, setPgmwindres,
addOptL, addOptP, addOptF, addOptc, addOptm, addOpta, addOptl, addOptwindres,
addCmdlineFramework, addHaddockOpts
setStubDir f d = d{ stubDir = Just f, includePaths = f : includePaths d }
-- -stubdir D adds an implicit -I D, so that gcc can find the _stub.h file
-- \#included from the .hc file when compiling with -fvia-C.
+setOutputDir f = setObjectDir f . setHiDir f . setStubDir f
setObjectSuf f d = d{ objectSuf = f}
setHiSuf f d = d{ hiSuf = f}
("wrapped", "") -> d{ dynLibLoader = Wrapped Nothing }
("wrapped:", "hard") -> d{ dynLibLoader = Wrapped Nothing }
("wrapped:", flex) -> d{ dynLibLoader = Wrapped (Just flex) }
- (_,_) -> error "Unknown dynlib loader"
+ _ -> ghcError (CmdLineError ("Unknown dynlib loader: " ++ f))
setDumpPrefixForce f d = d { dumpPrefixForce = f}
| CoreDoNothing -- Useful when building up
| CoreDoPasses [CoreToDo] -- lists of these things
+
data SimplifierMode -- See comments in SimplMonad
= SimplGently
| SimplPhase Int [String]
+instance Outputable SimplifierMode where
+ ppr SimplGently = ptext (sLit "gentle")
+ ppr (SimplPhase n ss) = int n <+> brackets (text (concat $ intersperse "," ss))
+
+
data SimplifierSwitch
= MaxSimplifierIterations Int
| NoCaseOfCase
-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
+
+data FloatOutSwitches = FloatOutSwitches {
+ floatOutLambdas :: Bool, -- ^ True <=> float lambdas to top level
+ floatOutConstants :: Bool -- ^ True <=> float constants to top level,
+ -- even if they do not escape a lambda
+ }
+
+instance Outputable FloatOutSwitches where
+ ppr = pprFloatOutSwitches
+
+pprFloatOutSwitches :: FloatOutSwitches -> SDoc
+pprFloatOutSwitches sw = pp_not (floatOutLambdas sw) <+> text "lambdas" <> comma
+ <+> pp_not (floatOutConstants sw) <+> text "constants"
+ where
+ pp_not True = empty
+ pp_not False = text "not"
+
+-- | Switches that specify the minimum amount of floating out
+gentleFloatOutSwitches :: FloatOutSwitches
+gentleFloatOutSwitches = FloatOutSwitches False False
+
+-- | Switches that do not specify floating out of lambdas, just of constants
+constantsOnlyFloatOutSwitches :: FloatOutSwitches
+constantsOnlyFloatOutSwitches = FloatOutSwitches False True
-- The core-to-core pass ordering is derived from the DynFlags:
-- so that overloaded functions have all their dictionary lambdas manifest
CoreDoSpecialising,
- runWhen full_laziness (CoreDoFloatOutwards (FloatOutSw False False)),
+ runWhen full_laziness (CoreDoFloatOutwards gentleFloatOutSwitches),
CoreDoFloatInwards,
]),
runWhen full_laziness
- (CoreDoFloatOutwards (FloatOutSw False -- Not lambdas
- True)), -- Float constants
+ (CoreDoFloatOutwards constantsOnlyFloatOutSwitches),
-- 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
, Flag "hidir" (HasArg (upd . setHiDir)) Supported
, Flag "tmpdir" (HasArg (upd . setTmpDir)) Supported
, Flag "stubdir" (HasArg (upd . setStubDir)) Supported
+ , Flag "outputdir" (HasArg (upd . setOutputDir)) Supported
, Flag "ddump-file-prefix" (HasArg (upd . setDumpPrefixForce . Just))
Supported
( "unbox-strict-fields", Opt_UnboxStrictFields, const Supported ),
( "method-sharing", Opt_MethodSharing, const Supported ),
( "dicts-cheap", Opt_DictsCheap, const Supported ),
+ ( "inline-if-enough-args", Opt_InlineIfEnoughArgs, const Supported ),
( "excess-precision", Opt_ExcessPrecision, const Supported ),
+ ( "eager-blackholing", Opt_EagerBlackHoling, const Supported ),
( "asm-mangling", Opt_DoAsmMangling, const Supported ),
( "print-bind-result", Opt_PrintBindResult, const Supported ),
( "force-recomp", Opt_ForceRecomp, const Supported ),
( "break-on-error", Opt_BreakOnError, const Supported ),
( "print-evld-with-show", Opt_PrintEvldWithShow, const Supported ),
( "print-bind-contents", Opt_PrintBindContents, const Supported ),
- ( "run-cps", Opt_RunCPSZ, const Supported ),
+ ( "run-cps", Opt_RunCPS, const Supported ),
+ ( "run-cpsz", Opt_RunCPSZ, const Supported ),
+ ( "new-codegen", Opt_TryNewCodeGen, const Supported ),
( "convert-to-zipper-and-back", Opt_ConvertToZipCfgAndBack, const Supported ),
( "vectorise", Opt_Vectorise, const Supported ),
( "regs-graph", Opt_RegsGraph, const Supported ),
f (x : xs) = x : f xs
f xs = xs
args' = f args
-
- flag_spec | pkg_flags = dynamic_flags ++ package_flags
+
+ -- Note: -ignore-package (package_flags) must precede -i* (dynamic_flags)
+ flag_spec | pkg_flags = package_flags ++ dynamic_flags
| otherwise = dynamic_flags
let ((leftover, errs, warns), dflags')
-- -fmax-simplifier-iterations20 this is necessary sometimes
-- -fno-spec-constr-threshold run SpecConstr even for big loops
-- -fno-spec-constr-count SpecConstr as much as possible
+-- -finline-enough-args hack to prevent excessive inlining
--
setDPHOpt :: DynFlags -> DynFlags
setDPHOpt dflags = setOptLevel 2 (dflags { maxSimplIterations = 20
})
`dopt_set` Opt_DictsCheap
`dopt_unset` Opt_MethodSharing
+ `dopt_set` Opt_InlineIfEnoughArgs
data DPHBackend = DPHPar
| DPHSeq
-- in dynamic libraries.
| opt_PIC
- = ["-fno-common", "-D__PIC__"]
+ = ["-fno-common", "-U __PIC__","-D__PIC__"]
| otherwise
= ["-mdynamic-no-pic"]
#elif mingw32_TARGET_OS
-- no -fPIC for Windows
| opt_PIC
- = ["-D__PIC__"]
+ = ["-U __PIC__","-D__PIC__"]
| otherwise
= []
#else
| opt_PIC
- = ["-fPIC", "-D__PIC__"]
+ = ["-fPIC", "-U __PIC__", "-D__PIC__"]
| otherwise
= []
#endif