DynFlags.hs 61.1 KB
Newer Older
1

2
{-# OPTIONS -fno-warn-missing-fields #-}
3 4 5 6 7 8 9
{-# OPTIONS -w #-}
-- The above warning supression flag is a temporary kludge.
-- While working on this module you are encouraged to remove it and fix
-- any warnings in the module. See
--     http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
-- for details

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
-----------------------------------------------------------------------------
--
-- Dynamic flags
--
-- Most flags are dynamic flags, which means they can change from
-- compilation to compilation using OPTIONS_GHC pragmas, and in a
-- multi-session GHC each session can be using different dynamic
-- flags.  Dynamic flags can also be set at the prompt in GHCi.
--
-- (c) The University of Glasgow 2005
--
-----------------------------------------------------------------------------

module DynFlags (
	-- Dynamic flags
	DynFlag(..),
	DynFlags(..),
27
	HscTarget(..), isObjectTarget, defaultObjectTarget,
28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
	GhcMode(..), isOneShot,
	GhcLink(..), isNoLink,
	PackageFlag(..),
	Option(..),

	-- Configuration of the core-to-core and stg-to-stg phases
	CoreToDo(..),
	StgToDo(..),
	SimplifierSwitch(..), 
	SimplifierMode(..), FloatOutSwitches(..),
	getCoreToDo, getStgToDo,
	
	-- Manipulating DynFlags
	defaultDynFlags,		-- DynFlags
	initDynFlags,			-- DynFlags -> IO DynFlags

	dopt,				-- DynFlag -> DynFlags -> Bool
	dopt_set, dopt_unset,		-- DynFlags -> DynFlag -> DynFlags
	getOpts,			-- (DynFlags -> [a]) -> IO [a]
	getVerbFlag,
	updOptLevel,
49
	setTmpDir,
50
	setPackageName,
51 52 53
	
	-- parsing DynFlags
	parseDynamicFlags,
54
        allFlags,
55 56

	-- misc stuff
Ian Lynagh's avatar
Ian Lynagh committed
57 58
	machdepCCOpts, picCCOpts,
    supportedLanguages,
59
    compilerInfo,
60 61 62 63
  ) where

#include "HsVersions.h"

64
import Module
Simon Marlow's avatar
Simon Marlow committed
65
import PackageConfig
66
import PrelNames	( mAIN )
Simon Marlow's avatar
Simon Marlow committed
67 68 69 70
#ifdef i386_TARGET_ARCH
import StaticFlags	( opt_Static )
#endif
import StaticFlags	( opt_PIC, WayName(..), v_Ways, v_Build_tag,
71
			  v_RTS_Build_tag )
72 73 74 75
import {-# SOURCE #-} Packages (PackageState)
import DriverPhases	( Phase(..), phaseInputExt )
import Config
import CmdLineParser
76
import Constants	( mAX_CONTEXT_REDUCTION_DEPTH )
77
import Panic		( panic, GhcException(..) )
78
import UniqFM           ( UniqFM )
79
import Util
80
import Maybes		( orElse, fromJust )
81
import SrcLoc           ( SrcSpan )
Simon Marlow's avatar
Simon Marlow committed
82 83
import Outputable
import {-# SOURCE #-} ErrUtils ( Severity(..), Message, mkLocMessage )
84

Simon Marlow's avatar
Simon Marlow committed
85 86 87
import Data.IORef	( readIORef )
import Control.Exception ( throwDyn )
import Control.Monad	( when )
88
#ifdef mingw32_TARGET_OS
89
import Data.List	( isPrefixOf )
simonpj@microsoft.com's avatar
simonpj@microsoft.com committed
90 91
#else
import Util		( split )
92
#endif
simonpj@microsoft.com's avatar
simonpj@microsoft.com committed
93

94
import Data.Char
95 96
import System.IO        ( hPutStrLn, stderr )

97 98 99 100 101 102 103
-- -----------------------------------------------------------------------------
-- DynFlags

data DynFlag

   -- debugging flags
   = Opt_D_dump_cmm
104
   | Opt_D_dump_cmmz
105
   | Opt_D_dump_cmmz_pretty
106
   | Opt_D_dump_cps_cmm
107
   | Opt_D_dump_cvt_cmm
108
   | Opt_D_dump_asm
109 110
   | Opt_D_dump_asm_native
   | Opt_D_dump_asm_liveness
111
   | Opt_D_dump_asm_coalesce
112 113 114
   | Opt_D_dump_asm_regalloc
   | Opt_D_dump_asm_regalloc_stages
   | Opt_D_dump_asm_conflicts
115
   | Opt_D_dump_asm_stats
116 117 118 119 120 121
   | Opt_D_dump_cpranal
   | Opt_D_dump_deriv
   | Opt_D_dump_ds
   | Opt_D_dump_flatC
   | Opt_D_dump_foreign
   | Opt_D_dump_inlinings
122
   | Opt_D_dump_rule_firings
123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145
   | Opt_D_dump_occur_anal
   | Opt_D_dump_parsed
   | Opt_D_dump_rn
   | Opt_D_dump_simpl
   | Opt_D_dump_simpl_iterations
   | Opt_D_dump_spec
   | 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_cse
   | Opt_D_dump_worker_wrapper
   | Opt_D_dump_rn_trace
   | Opt_D_dump_rn_stats
   | 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
andy@galois.com's avatar
andy@galois.com committed
146
   | Opt_D_dump_hpc
147 148 149 150 151 152
   | Opt_D_source_stats
   | Opt_D_verbose_core2core
   | Opt_D_verbose_stg2stg
   | Opt_D_dump_hi
   | Opt_D_dump_hi_diffs
   | Opt_D_dump_minimal_imports
153
   | Opt_D_dump_mod_cycles
154
   | Opt_D_dump_view_pattern_commoning
155
   | Opt_D_faststring_stats
156
   | Opt_DumpToFile			-- ^ Append dump output to files instead of stdout.
157 158 159
   | Opt_DoCoreLinting
   | Opt_DoStgLinting
   | Opt_DoCmmLinting
Ben.Lippmeier@anu.edu.au's avatar
Ben.Lippmeier@anu.edu.au committed
160
   | Opt_DoAsmLinting
161

162
   | Opt_WarnIsError			-- -Werror; makes warnings fatal
163 164
   | Opt_WarnDuplicateExports
   | Opt_WarnHiShadows
165
   | Opt_WarnImplicitPrelude
166 167 168 169 170 171 172 173 174
   | Opt_WarnIncompletePatterns
   | Opt_WarnIncompletePatternsRecUpd
   | Opt_WarnMissingFields
   | Opt_WarnMissingMethods
   | Opt_WarnMissingSigs
   | Opt_WarnNameShadowing
   | Opt_WarnOverlappingPatterns
   | Opt_WarnSimplePatterns
   | Opt_WarnTypeDefaults
175
   | Opt_WarnMonomorphism
176 177 178 179 180 181
   | Opt_WarnUnusedBinds
   | Opt_WarnUnusedImports
   | Opt_WarnUnusedMatches
   | Opt_WarnDeprecations
   | Opt_WarnDodgyImports
   | Opt_WarnOrphans
182
   | Opt_WarnTabs
183 184

   -- language opts
185 186 187
   | Opt_OverlappingInstances
   | Opt_UndecidableInstances
   | Opt_IncoherentInstances
188
   | Opt_MonomorphismRestriction
189
   | Opt_MonoPatBinds
190
   | Opt_ExtendedDefaultRules		-- Use GHC's extended rules for defaulting
191
   | Opt_ForeignFunctionInterface
Ian Lynagh's avatar
Ian Lynagh committed
192
   | Opt_UnliftedFFITypes
193 194
   | Opt_PArr				-- Syntactic support for parallel arrays
   | Opt_Arrows				-- Arrow-notation syntax
195
   | Opt_TemplateHaskell
196 197 198 199
   | Opt_ImplicitParams
   | Opt_Generics
   | Opt_ImplicitPrelude 
   | Opt_ScopedTypeVariables
Ian Lynagh's avatar
Ian Lynagh committed
200
   | Opt_UnboxedTuples
simonpj@microsoft.com's avatar
simonpj@microsoft.com committed
201
   | Opt_BangPatterns
202
   | Opt_TypeFamilies
203
   | Opt_OverloadedStrings
204
   | Opt_DisambiguateRecordFields
205
   | Opt_RecordWildCards
206
   | Opt_RecordPuns
207
   | Opt_ViewPatterns
208
   | Opt_GADTs
209
   | Opt_RelaxedPolyRec
210
   | Opt_StandaloneDeriving
211
   | Opt_DeriveDataTypeable
212
   | Opt_TypeSynonymInstances
Ian Lynagh's avatar
Ian Lynagh committed
213
   | Opt_FlexibleContexts
214
   | Opt_FlexibleInstances
215
   | Opt_ConstrainedClassMethods
Ian Lynagh's avatar
Ian Lynagh committed
216
   | Opt_MultiParamTypeClasses
217
   | Opt_FunctionalDependencies
Ian Lynagh's avatar
Ian Lynagh committed
218
   | Opt_UnicodeSyntax
Ian Lynagh's avatar
Ian Lynagh committed
219
   | Opt_PolymorphicComponents
220
   | Opt_ExistentialQuantification
221
   | Opt_MagicHash
Ian Lynagh's avatar
Ian Lynagh committed
222
   | Opt_EmptyDataDecls
Ian Lynagh's avatar
Ian Lynagh committed
223
   | Opt_KindSignatures
Ian Lynagh's avatar
Ian Lynagh committed
224
   | Opt_PatternSignatures
Ian Lynagh's avatar
Ian Lynagh committed
225
   | Opt_ParallelListComp
226
   | Opt_GeneralizedNewtypeDeriving
Ian Lynagh's avatar
Ian Lynagh committed
227
   | Opt_RecursiveDo
Ian Lynagh's avatar
Ian Lynagh committed
228
   | Opt_PatternGuards
229
   | Opt_LiberalTypeSynonyms
230 231
   | Opt_Rank2Types
   | Opt_RankNTypes
Ian Lynagh's avatar
Ian Lynagh committed
232
   | Opt_TypeOperators
233

234 235
   | Opt_PrintExplicitForalls

236 237 238 239
   -- optimisation opts
   | Opt_Strictness
   | Opt_FullLaziness
   | Opt_CSE
240 241
   | Opt_LiberateCase
   | Opt_SpecConstr
242 243 244 245
   | Opt_IgnoreInterfacePragmas
   | Opt_OmitInterfacePragmas
   | Opt_DoLambdaEtaExpansion
   | Opt_IgnoreAsserts
246
   | Opt_IgnoreBreakpoints
247 248 249
   | Opt_DoEtaReduction
   | Opt_CaseMerge
   | Opt_UnboxStrictFields
250
   | Opt_DictsCheap
251
   | Opt_RewriteRules
rl@cse.unsw.edu.au's avatar
rl@cse.unsw.edu.au committed
252
   | Opt_Vectorise
253 254
   | Opt_RegsGraph			-- do graph coloring register allocation
   | Opt_RegsIterative			-- do iterative coalescing graph coloring register allocation
255 256 257 258

   -- misc opts
   | Opt_Cpp
   | Opt_Pp
259
   | Opt_ForceRecomp
260 261 262 263 264 265 266
   | Opt_DryRun
   | Opt_DoAsmMangling
   | Opt_ExcessPrecision
   | Opt_ReadUserPackageConf
   | Opt_NoHsMain
   | Opt_SplitObjs
   | Opt_StgStats
267
   | Opt_HideAllPackages
268
   | Opt_PrintBindResult
269
   | Opt_Haddock
David Waern's avatar
David Waern committed
270
   | Opt_HaddockOptions
271
   | Opt_Hpc_No_Auto
272
   | Opt_BreakOnException
273
   | Opt_BreakOnError
274
   | Opt_PrintEvldWithShow
275 276
   | Opt_GenManifest
   | Opt_EmbedManifest
277 278
   | Opt_RunCPSZ
   | Opt_ConvertToZipCfgAndBack
279 280 281 282 283 284 285 286

   -- keeping stuff
   | Opt_KeepHiDiffs
   | Opt_KeepHcFiles
   | Opt_KeepSFiles
   | Opt_KeepRawSFiles
   | Opt_KeepTmpFiles

287
   deriving (Eq, Show)
288
 
289 290 291 292 293 294 295 296 297 298 299 300
data DynFlags = DynFlags {
  ghcMode		:: GhcMode,
  ghcLink		:: GhcLink,
  coreToDo   		:: Maybe [CoreToDo], -- reserved for -Ofile
  stgToDo    		:: Maybe [StgToDo],  -- similarly
  hscTarget    		:: HscTarget,
  hscOutName 		:: String,  	-- name of the 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,
301 302

  specThreshold		:: Int,		-- Threshold for function specialisation
303

304 305 306
  stolen_x86_regs	:: Int,		
  cmdlineHcIncludes	:: [String],	-- -#includes
  importPaths		:: [FilePath],
307
  mainModIs		:: Module,
308
  mainFunIs		:: Maybe String,
309 310
  ctxtStkDepth	        :: Int,		-- Typechecker context stack depth

Simon Marlow's avatar
Simon Marlow committed
311
  thisPackage		:: PackageId,
312 313 314 315 316 317 318

  -- ways
  wayNames		:: [WayName],	-- way flags from the cmd line
  buildTag		:: String,	-- the global "way" (eg. "p" for prof)
  rtsBuildTag		:: String,	-- the RTS "way"
  
  -- paths etc.
319 320 321 322
  objectDir		:: Maybe String,
  hiDir			:: Maybe String,
  stubDir		:: Maybe String,

323 324 325
  objectSuf		:: String,
  hcSuf			:: String,
  hiSuf			:: String,
326 327 328 329

  outputFile		:: Maybe String,
  outputHi		:: Maybe String,

330 331 332 333 334 335 336 337
  -- | This is set by DriverPipeline.runPipeline based on where
  --	its output is going.
  dumpPrefix		:: Maybe FilePath,

  -- | Override the dumpPrefix set by runPipeline.
  --	Set by -ddump-file-prefix
  dumpPrefixForce	:: Maybe FilePath,

338 339 340 341
  includePaths		:: [String],
  libraryPaths		:: [String],
  frameworkPaths	:: [String],  	-- used on darwin only
  cmdlineFrameworks	:: [String],	-- ditto
342
  tmpDir		:: String,	-- no trailing '/'
343
  
344 345 346
  ghcUsagePath          :: FilePath,    -- Filled in by SysTools
  ghciUsagePath         :: FilePath,    -- ditto

andy@galois.com's avatar
andy@galois.com committed
347 348
  hpcDir		:: String,	-- ^ path to store the .mix files

349 350 351 352 353 354 355 356 357
  -- options for particular phases
  opt_L			:: [String],
  opt_P			:: [String],
  opt_F			:: [String],
  opt_c			:: [String],
  opt_m			:: [String],
  opt_a			:: [String],
  opt_l			:: [String],
  opt_dep		:: [String],
358
  opt_windres		:: [String],
359 360 361 362 363 364 365 366 367 368 369

  -- commands for particular phases
  pgm_L			:: String,
  pgm_P			:: (String,[Option]),
  pgm_F			:: String,
  pgm_c			:: (String,[Option]),
  pgm_m			:: (String,[Option]),
  pgm_s			:: (String,[Option]),
  pgm_a			:: (String,[Option]),
  pgm_l			:: (String,[Option]),
  pgm_dll		:: (String,[Option]),
370 371
  pgm_T                 :: String,
  pgm_sysman            :: String,
372
  pgm_windres           :: String,
373

374
  --  Package flags
375
  extraPkgConfs		:: [FilePath],
376 377
  topDir                :: FilePath,    -- filled in by SysTools
  systemPackageConfig   :: FilePath,    -- ditto
378 379 380 381 382 383
	-- The -package-conf flags given on the command line, in the order
	-- they appeared.

  packageFlags		:: [PackageFlag],
	-- The -package and -hide-package flags from the command-line

384 385 386
  -- Package state
  -- NB. do not modify this field, it is calculated by 
  -- Packages.initPackages and Packages.updatePackages.
387
  pkgDatabase           :: Maybe (UniqFM PackageConfig),
388 389 390
  pkgState		:: PackageState,

  -- hsc dynamic flags
391 392 393
  flags      		:: [DynFlag],
  
  -- message output
David Waern's avatar
David Waern committed
394 395 396
  log_action            :: Severity -> SrcSpan -> PprStyle -> Message -> IO (),

  haddockOptions :: Maybe String
397 398 399 400 401 402 403 404 405 406
 }

data HscTarget
  = HscC
  | HscAsm
  | HscJava
  | HscInterpreted
  | HscNothing
  deriving (Eq, Show)

407 408 409 410 411 412 413 414 415 416 417 418
-- | will this target result in an object file on the disk?
isObjectTarget :: HscTarget -> Bool
isObjectTarget HscC     = True
isObjectTarget HscAsm   = True
isObjectTarget _        = False

-- | The 'GhcMode' tells us whether we're doing multi-module
-- compilation (controlled via the "GHC" API) or one-shot
-- (single-module) compilation.  This makes a difference primarily to
-- the "Finder": in one-shot mode we look for interface files for
-- imported modules, but in multi-module mode we look for source files
-- in order to check whether they need to be recompiled.
419
data GhcMode
420 421 422
  = CompManager         -- ^ --make, GHCi, etc.
  | OneShot		-- ^ ghc -c Foo.hs
  | MkDepend            -- ^ ghc -M, see Finder for why we need this
423 424 425 426 427 428
  deriving Eq

isOneShot :: GhcMode -> Bool
isOneShot OneShot = True
isOneShot _other  = False

429
-- | What kind of linking to do.
430
data GhcLink	-- What to do in the link step, if there is one
431 432 433
  = NoLink		-- Don't link at all
  | LinkBinary		-- Link object code into a binary
  | LinkInMemory        -- Use the in-memory dynamic linker
434
  | LinkDynLib		-- Link objects into a dynamic lib (DLL on Windows, DSO on ELF platforms)
435
  deriving Eq
436 437 438 439 440 441 442 443 444

isNoLink :: GhcLink -> Bool
isNoLink NoLink = True
isNoLink other  = False

data PackageFlag
  = ExposePackage  String
  | HidePackage    String
  | IgnorePackage  String
445
  deriving Eq
446

447 448 449 450 451
defaultHscTarget = defaultObjectTarget

-- | the 'HscTarget' value corresponding to the default way to create
-- object files on the current platform.
defaultObjectTarget
452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467
  | cGhcWithNativeCodeGen == "YES" 	=  HscAsm
  | otherwise				=  HscC

initDynFlags dflags = do
 -- someday these will be dynamic flags
 ways <- readIORef v_Ways
 build_tag <- readIORef v_Build_tag
 rts_build_tag <- readIORef v_RTS_Build_tag
 return dflags{
	wayNames	= ways,
	buildTag	= build_tag,
	rtsBuildTag	= rts_build_tag
	}

defaultDynFlags =
     DynFlags {
468 469
	ghcMode			= CompManager,
	ghcLink			= LinkBinary,
470 471 472 473 474 475 476 477 478
	coreToDo 		= Nothing,
	stgToDo			= Nothing, 
	hscTarget		= defaultHscTarget, 
	hscOutName		= "", 
	extCoreName		= "",
	verbosity		= 0, 
	optLevel		= 0,
	maxSimplIterations	= 4,
	ruleCheck		= Nothing,
479
	specThreshold		= 200,
480 481 482
	stolen_x86_regs		= 4,
	cmdlineHcIncludes	= [],
	importPaths		= ["."],
483
	mainModIs		= mAIN,
484
	mainFunIs		= Nothing,
485 486
	ctxtStkDepth		= mAX_CONTEXT_REDUCTION_DEPTH,

Simon Marlow's avatar
Simon Marlow committed
487
	thisPackage		= mainPackageId,
488

489 490 491 492
	objectDir		= Nothing,
	hiDir			= Nothing,
	stubDir			= Nothing,

493 494 495
	objectSuf		= phaseInputExt StopLn,
	hcSuf			= phaseInputExt HCc,
	hiSuf			= "hi",
496 497 498

	outputFile		= Nothing,
	outputHi		= Nothing,
499 500
	dumpPrefix		= Nothing,
	dumpPrefixForce		= Nothing,
501 502 503 504
	includePaths		= [],
	libraryPaths		= [],
	frameworkPaths		= [],
	cmdlineFrameworks	= [],
505
	tmpDir			= cDEFAULT_TMPDIR,
506
	
andy@galois.com's avatar
andy@galois.com committed
507 508
        hpcDir		        = ".hpc",

509
	opt_L			= [],
510 511 512
	opt_P			= (if opt_PIC
				   then ["-D__PIC__"]
				   else []),
513 514 515 516 517 518
	opt_F			= [],
	opt_c			= [],
	opt_a			= [],
	opt_m			= [],
	opt_l			= [],
	opt_dep			= [],
519
        opt_windres             = [],
520 521 522
	
	extraPkgConfs		= [],
	packageFlags		= [],
523 524
        pkgDatabase             = Nothing,
        pkgState                = panic "no package state yet: call GHC.setSessionDynFlags",
David Waern's avatar
David Waern committed
525
  haddockOptions = Nothing,
526 527 528
	flags = [ 
    	    Opt_ReadUserPackageConf,
    
529 530 531 532
	    Opt_MonoPatBinds, 	-- Experimentally, I'm making this non-standard
				-- behaviour the default, to see if anyone notices
				-- SLPJ July 06

533 534
    	    Opt_ImplicitPrelude,
    	    Opt_MonomorphismRestriction,
535

536 537
    	    Opt_DoAsmMangling,
    
538 539 540
            Opt_GenManifest,
            Opt_EmbedManifest,

541
	    -- on by default:
542 543 544 545
	    Opt_PrintBindResult ]
	    ++ [f | (ns,f) <- optLevelFlags, 0 `elem` ns]
	    	    -- The default -O0 options
	    ++ standardWarnings,
546 547 548 549 550 551
               
        log_action = \severity srcSpan style msg -> 
                        case severity of
                          SevInfo  -> hPutStrLn stderr (show (msg style))
                          SevFatal -> hPutStrLn stderr (show (msg style))
                          _        -> hPutStrLn stderr ('\n':show ((mkLocMessage srcSpan msg) style))
552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582
      }

{- 
    Verbosity levels:
	
    0	|   print errors & warnings only
    1   |   minimal verbosity: print "compiling M ... done." for each module.
    2   |   equivalent to -dshow-passes
    3   |   equivalent to existing "ghc -v"
    4   |   "ghc -v -ddump-most"
    5   |   "ghc -v -ddump-all"
-}

dopt :: DynFlag -> DynFlags -> Bool
dopt f dflags  = f `elem` (flags dflags)

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 -> (DynFlags -> [a]) -> [a]
getOpts dflags opts = reverse (opts dflags)
	-- We add to the options from the front, so we need to reverse the list

getVerbFlag :: DynFlags -> String
getVerbFlag dflags 
  | verbosity dflags >= 3  = "-v" 
  | otherwise =  ""

583 584 585 586 587
setObjectDir  f d = d{ objectDir  = Just f}
setHiDir      f d = d{ hiDir      = Just f}
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.
588

589 590
setObjectSuf  f d = d{ objectSuf  = f}
setHiSuf      f d = d{ hiSuf      = f}
591 592 593 594
setHcSuf      f d = d{ hcSuf      = f}

setOutputFile f d = d{ outputFile = f}
setOutputHi   f d = d{ outputHi   = f}
595

596 597
setDumpPrefixForce f d = d { dumpPrefixForce = f}

598 599 600 601 602 603 604 605 606 607 608 609
-- XXX HACK: Prelude> words "'does not' work" ===> ["'does","not'","work"]
-- Config.hs should really use Option.
setPgmP   f d = let (pgm:args) = words f in d{ pgm_P   = (pgm, map Option args)}

setPgmL   f d = d{ pgm_L   = f}
setPgmF   f d = d{ pgm_F   = f}
setPgmc   f d = d{ pgm_c   = (f,[])}
setPgmm   f d = d{ pgm_m   = (f,[])}
setPgms   f d = d{ pgm_s   = (f,[])}
setPgma   f d = d{ pgm_a   = (f,[])}
setPgml   f d = d{ pgm_l   = (f,[])}
setPgmdll f d = d{ pgm_dll = (f,[])}
610
setPgmwindres f d = d{ pgm_windres = f}
611 612 613 614 615 616 617 618 619

addOptL   f d = d{ opt_L   = f : opt_L d}
addOptP   f d = d{ opt_P   = f : opt_P d}
addOptF   f d = d{ opt_F   = f : opt_F d}
addOptc   f d = d{ opt_c   = f : opt_c d}
addOptm   f d = d{ opt_m   = f : opt_m d}
addOpta   f d = d{ opt_a   = f : opt_a d}
addOptl   f d = d{ opt_l   = f : opt_l d}
addOptdep f d = d{ opt_dep = f : opt_dep d}
620
addOptwindres f d = d{ opt_windres = f : opt_windres d}
621 622 623

addCmdlineFramework f d = d{ cmdlineFrameworks = f : cmdlineFrameworks d}

David Waern's avatar
David Waern committed
624 625
addHaddockOpts f d = d{ haddockOptions = Just f}

626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648
-- -----------------------------------------------------------------------------
-- Command-line options

-- When invoking external tools as part of the compilation pipeline, we
-- pass these a sequence of options on the command-line. Rather than
-- just using a list of Strings, we use a type that allows us to distinguish
-- between filepaths and 'other stuff'. [The reason being, of course, that
-- this type gives us a handle on transforming filenames, and filenames only,
-- to whatever format they're expected to be on a particular platform.]

data Option
 = FileOption -- an entry that _contains_ filename(s) / filepaths.
              String  -- a non-filepath prefix that shouldn't be 
		      -- transformed (e.g., "/out=")
 	      String  -- the filepath/filename portion
 | Option     String
 
-----------------------------------------------------------------------------
-- Setting the optimisation level

updOptLevel :: Int -> DynFlags -> DynFlags
-- Set dynflags appropriate to the optimisation level
updOptLevel n dfs
649
  = dfs2{ optLevel = final_n }
650
  where
651
   final_n = max 0 (min 2 n)	-- Clamp to 0 <= n <= 2
652 653 654
   dfs1 = foldr (flip dopt_unset) dfs  remove_dopts
   dfs2 = foldr (flip dopt_set)   dfs1 extra_dopts

655 656
   extra_dopts  = [ f | (ns,f) <- optLevelFlags, final_n `elem` ns ]
   remove_dopts = [ f | (ns,f) <- optLevelFlags, final_n `notElem` ns ]
657
	
658 659 660 661
optLevelFlags :: [([Int], DynFlag)]
optLevelFlags
  = [ ([0],	Opt_IgnoreInterfacePragmas)
    , ([0],     Opt_OmitInterfacePragmas)
662

663
    , ([1,2],	Opt_IgnoreAsserts)
664 665
    , ([1,2],	Opt_RewriteRules)	-- Off for -O0; see Note [Scoping for Builtin rules]
					-- 		in PrelRules
666 667 668 669 670
    , ([1,2],	Opt_DoEtaReduction)
    , ([1,2],	Opt_CaseMerge)
    , ([1,2],	Opt_Strictness)
    , ([1,2],	Opt_CSE)
    , ([1,2],	Opt_FullLaziness)
671

672 673 674 675 676 677 678 679
    , ([2],	Opt_LiberateCase)
    , ([2],	Opt_SpecConstr)

    , ([0,1,2], 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.
680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710
    ]

-- -----------------------------------------------------------------------------
-- Standard sets of warning options

standardWarnings
    = [ Opt_WarnDeprecations,
	Opt_WarnOverlappingPatterns,
	Opt_WarnMissingFields,
	Opt_WarnMissingMethods,
	Opt_WarnDuplicateExports
      ]

minusWOpts
    = standardWarnings ++ 
      [	Opt_WarnUnusedBinds,
	Opt_WarnUnusedMatches,
	Opt_WarnUnusedImports,
	Opt_WarnIncompletePatterns,
	Opt_WarnDodgyImports
      ]

minusWallOpts
    = minusWOpts ++
      [	Opt_WarnTypeDefaults,
	Opt_WarnNameShadowing,
	Opt_WarnMissingSigs,
	Opt_WarnHiShadows,
	Opt_WarnOrphans
      ]

711 712 713 714 715 716 717 718 719 720
-- minuswRemovesOpts should be every warning option
minuswRemovesOpts
    = minusWallOpts ++
      [Opt_WarnImplicitPrelude,
       Opt_WarnIncompletePatternsRecUpd,
       Opt_WarnSimplePatterns,
       Opt_WarnMonomorphism,
       Opt_WarnTabs
      ]

721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746
-- -----------------------------------------------------------------------------
-- CoreToDo:  abstraction of core-to-core passes to run.

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.
	SimplifierMode
	[SimplifierSwitch]
			-- Each run of the simplifier can take a different
			-- set of simplifier-specific flags.
  | CoreDoFloatInwards
  | CoreDoFloatOutwards FloatOutSwitches
  | CoreLiberateCase
  | CoreDoPrintCore
  | CoreDoStaticArgs
  | CoreDoStrictness
  | CoreDoWorkerWrapper
  | CoreDoSpecialising
  | CoreDoSpecConstr
  | CoreDoOldStrictness
  | CoreDoGlomBinds
  | CoreCSE
  | CoreDoRuleCheck Int{-CompilerPhase-} String	-- Check for non-application of rules 
						-- matching this string
747
  | CoreDoVectorisation
748 749
  | CoreDoNothing 		 -- Useful when building up 
  | CoreDoPasses [CoreToDo] 	 -- lists of these things
750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765

data SimplifierMode 		-- See comments in SimplMonad
  = SimplGently
  | SimplPhase Int

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


-- The core-to-core pass ordering is derived from the DynFlags:
766 767 768
runWhen :: Bool -> CoreToDo -> CoreToDo
runWhen True  do_this = do_this
runWhen False do_this = CoreDoNothing
769 770 771 772 773 774 775 776 777 778 779

getCoreToDo :: DynFlags -> [CoreToDo]
getCoreToDo dflags
  | Just todo <- coreToDo dflags = todo -- set explicitly by user
  | otherwise = 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
780 781
    spec_constr   = dopt Opt_SpecConstr dflags
    liberate_case = dopt Opt_LiberateCase dflags
782
    rule_check    = ruleCheck dflags
783
    vectorisation = dopt Opt_Vectorise dflags
784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805

    core_todo = 
     if opt_level == 0 then
      [
	CoreDoSimplify (SimplPhase 0) [
	    MaxSimplifierIterations max_iter
	]
      ]
     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.

simonpj@microsoft.com's avatar
simonpj@microsoft.com committed
806 807
            NoCaseOfCase,	-- Don't do case-of-case transformations.
				-- This makes full laziness work better
808 809 810
	    MaxSimplifierIterations max_iter
	],

811 812 813 814 815 816 817 818 819

        -- We run vectorisation here for now, but we might also try to run
        -- it later
        runWhen vectorisation (CoreDoPasses [
                  CoreDoVectorisation,
                  CoreDoSimplify SimplGently
                                  [NoCaseOfCase,
                                   MaxSimplifierIterations max_iter]]),

820 821 822 823
	-- Specialisation is best done before full laziness
	-- so that overloaded functions have all their dictionary lambdas manifest
	CoreDoSpecialising,

824
	runWhen full_laziness (CoreDoFloatOutwards (FloatOutSw False False)),
825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862

	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
863
	CoreDoOldStrictness,
864
#endif
865 866 867 868 869 870 871 872 873 874 875
	runWhen strictness (CoreDoPasses [
		CoreDoStrictness,
		CoreDoWorkerWrapper,
		CoreDoGlomBinds,
		CoreDoSimplify (SimplPhase 0) [
		   MaxSimplifierIterations max_iter
		]]),

	runWhen full_laziness 
	  (CoreDoFloatOutwards (FloatOutSw False    -- Not lambdas
					   True)),  -- Float constants
876 877 878 879 880 881 882
		-- 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)


883 884 885 886
	runWhen cse CoreCSE,
		-- 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
887 888 889

	CoreDoFloatInwards,

890
	case rule_check of { Just pat -> CoreDoRuleCheck 0 pat; Nothing -> CoreDoNothing },
891

892 893 894 895 896
		-- Case-liberation for -O2.  This should be after
		-- strictness analysis and the simplification which follows it.
	runWhen liberate_case (CoreDoPasses [
	    CoreLiberateCase,
	    CoreDoSimplify (SimplPhase 0) [
897
		  MaxSimplifierIterations max_iter
898
	    ] ]),	-- Run the simplifier after LiberateCase to vastly 
899 900 901
			-- reduce the possiblility of shadowing
			-- Reason: see Note [Shadowing] in SpecConstr.lhs

902
	runWhen spec_constr CoreDoSpecConstr,
903 904

	-- Final clean-up simplification:
905
     	CoreDoSimplify (SimplPhase 0) [
906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935
	  MaxSimplifierIterations max_iter
	]
     ]

-- -----------------------------------------------------------------------------
-- StgToDo:  abstraction of stg-to-stg passes to run.

data StgToDo
  = StgDoMassageForProfiling  -- should be (next to) last
  -- There's also setStgVarInfo, but its absolute "lastness"
  -- is so critical that it is hardwired in (no flag).
  | D_stg_stats

getStgToDo :: DynFlags -> [StgToDo]
getStgToDo dflags
  | Just todo <- stgToDo dflags = todo -- set explicitly by user
  | otherwise = todo2
  where
	stg_stats = dopt Opt_StgStats dflags

	todo1 = if stg_stats then [D_stg_stats] else []

	todo2 | WayProf `elem` wayNames dflags
	      = StgDoMassageForProfiling : todo1
	      | otherwise
	      = todo1

-- -----------------------------------------------------------------------------
-- DynFlags parser

936 937 938 939 940 941 942 943 944
allFlags :: [String]
allFlags = map ('-':) $
           [ name | (name, optkind) <- dynamic_flags, ok optkind ] ++
           map ("fno-"++) flags ++
           map ("f"++) flags
    where ok (PrefixPred _ _) = False
          ok _ = True
          flags = map fst fFlags

945 946 947 948 949 950
dynamic_flags :: [(String, OptKind DynP)]
dynamic_flags = [
     ( "n"              , NoArg  (setDynFlag Opt_DryRun) )
  ,  ( "cpp"		, NoArg  (setDynFlag Opt_Cpp))
  ,  ( "F"		, NoArg  (setDynFlag Opt_Pp))
  ,  ( "#include"	, HasArg (addCmdlineHCInclude) )
951
  ,  ( "v"		, OptIntSuffix setVerbosity )
952

953 954 955 956 957 958 959 960 961 962
        ------- Specific phases  --------------------------------------------
  ,  ( "pgmL"           , HasArg (upd . setPgmL) )  
  ,  ( "pgmP"           , HasArg (upd . setPgmP) )  
  ,  ( "pgmF"           , HasArg (upd . setPgmF) )  
  ,  ( "pgmc"           , HasArg (upd . setPgmc) )  
  ,  ( "pgmm"           , HasArg (upd . setPgmm) )  
  ,  ( "pgms"           , HasArg (upd . setPgms) )  
  ,  ( "pgma"           , HasArg (upd . setPgma) )  
  ,  ( "pgml"           , HasArg (upd . setPgml) )  
  ,  ( "pgmdll"		, HasArg (upd . setPgmdll) )
963
  ,  ( "pgmwindres"     , HasArg (upd . setPgmwindres) )
964 965 966 967

  ,  ( "optL"		, HasArg (upd . addOptL) )  
  ,  ( "optP"		, HasArg (upd . addOptP) )  
  ,  ( "optF"           , HasArg (upd . addOptF) )  
968
  ,  ( "optc"		, HasArg (upd . addOptc) )  
969 970 971 972
  ,  ( "optm"		, HasArg (upd . addOptm) )  
  ,  ( "opta"		, HasArg (upd . addOpta) )  
  ,  ( "optl"		, HasArg (upd . addOptl) )  
  ,  ( "optdep"		, HasArg (upd . addOptdep) )
973
  ,  ( "optwindres"     , HasArg (upd . addOptwindres) )
974

975 976 977 978
  ,  ( "split-objs"	, NoArg (if can_split
				    then setDynFlag Opt_SplitObjs
				    else return ()) )

979 980 981
	-------- Linking ----------------------------------------------------
  ,  ( "c"		, NoArg (upd $ \d -> d{ ghcLink=NoLink } ))
  ,  ( "no-link"	, NoArg (upd $ \d -> d{ ghcLink=NoLink } )) -- Dep.
982
  ,  ( "shared"		, NoArg (upd $ \d -> d{ ghcLink=LinkDynLib } ))
983 984 985

	------- Libraries ---------------------------------------------------
  ,  ( "L"		, Prefix addLibraryPath )
986
  ,  ( "l"		, AnySuffix (\s -> do upd (addOptl s)))
987 988 989 990 991 992 993

	------- Frameworks --------------------------------------------------
        -- -framework-path should really be -F ...
  ,  ( "framework-path" , HasArg addFrameworkPath )
  ,  ( "framework"	, HasArg (upd . addCmdlineFramework) )

	------- Output Redirection ------------------------------------------
994
  ,  ( "odir"		, HasArg (upd . setObjectDir))
995 996 997 998 999
  ,  ( "o"		, SepArg (upd . setOutputFile . Just))
  ,  ( "ohi"		, HasArg (upd . setOutputHi   . Just ))
  ,  ( "osuf"		, HasArg (upd . setObjectSuf))
  ,  ( "hcsuf"		, HasArg (upd . setHcSuf))
  ,  ( "hisuf"		, HasArg (upd . setHiSuf))
1000
  ,  ( "hidir"		, HasArg (upd . setHiDir))
1001
  ,  ( "tmpdir"		, HasArg (upd . setTmpDir))
1002
  ,  ( "stubdir"	, HasArg (upd . setStubDir))
1003
  ,  ( "ddump-file-prefix", HasArg (upd . setDumpPrefixForce . Just))
1004 1005

	------- Keeping temporary files -------------------------------------
Ian Lynagh's avatar
Ian Lynagh committed
1006 1007 1008 1009 1010 1011 1012 1013 1014
     -- These can be singular (think ghc -c) or plural (think ghc --make)
  ,  ( "keep-hc-file"    , NoArg (setDynFlag Opt_KeepHcFiles))
  ,  ( "keep-hc-files"   , NoArg (setDynFlag Opt_KeepHcFiles))
  ,  ( "keep-s-file"     , NoArg (setDynFlag Opt_KeepSFiles))
  ,  ( "keep-s-files"    , NoArg (setDynFlag Opt_KeepSFiles))
  ,  ( "keep-raw-s-file" , NoArg (setDynFlag Opt_KeepRawSFiles))
  ,  ( "keep-raw-s-files", NoArg (setDynFlag Opt_KeepRawSFiles))
     -- This only makes sense as plural
  ,  ( "keep-tmp-files"  , NoArg (setDynFlag Opt_KeepTmpFiles))
1015 1016 1017 1018

	------- Miscellaneous ----------------------------------------------
  ,  ( "no-hs-main"     , NoArg (setDynFlag Opt_NoHsMain))
  ,  ( "main-is"   	, SepArg setMainIs )
1019
  ,  ( "haddock"	, NoArg (setDynFlag Opt_Haddock) )
David Waern's avatar
David Waern committed
1020
  ,  ( "haddock-opts"   , HasArg (upd . addHaddockOpts))
andy@galois.com's avatar
andy@galois.com committed
1021
  ,  ( "hpcdir"		, SepArg setOptHpcDir )
1022

1023 1024 1025
	------- recompilation checker (DEPRECATED, use -fforce-recomp) -----
  ,  ( "recomp"		, NoArg (unSetDynFlag Opt_ForceRecomp) )
  ,  ( "no-recomp"  	, NoArg (setDynFlag   Opt_ForceRecomp) )
1026 1027 1028 1029

        ------- Packages ----------------------------------------------------
  ,  ( "package-conf"   , HasArg extraPkgConf_ )
  ,  ( "no-user-package-conf", NoArg (unSetDynFlag Opt_ReadUserPackageConf) )
1030
  ,  ( "package-name"   , HasArg (upd . setPackageName) )
1031 1032
  ,  ( "package"        , HasArg exposePackage )
  ,  ( "hide-package"   , HasArg hidePackage )
1033
  ,  ( "hide-all-packages", NoArg (setDynFlag Opt_HideAllPackages) )
1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048
  ,  ( "ignore-package" , HasArg ignorePackage )
  ,  ( "syslib"         , HasArg exposePackage )  -- for compatibility

	------ HsCpp opts ---------------------------------------------------
  ,  ( "D",		AnySuffix (upd . addOptP) )
  ,  ( "U",		AnySuffix (upd . addOptP) )

	------- Include/Import Paths ----------------------------------------
  ,  ( "I" 		, Prefix    addIncludePath)
  ,  ( "i"		, OptPrefix addImportPath )

	------ Debugging ----------------------------------------------------
  ,  ( "dstg-stats",	NoArg (setDynFlag Opt_StgStats))

  ,  ( "ddump-cmm",         	 setDumpFlag Opt_D_dump_cmm)
1049
  ,  ( "ddump-cmmz",         	 setDumpFlag Opt_D_dump_cmmz)
1050
  ,  ( "ddump-cmmz-pretty",      setDumpFlag Opt_D_dump_cmmz_pretty)
1051
  ,  ( "ddump-cps-cmm",        	 setDumpFlag Opt_D_dump_cps_cmm)
1052
  ,  ( "ddump-cvt-cmm",        	 setDumpFlag Opt_D_dump_cvt_cmm)
1053
  ,  ( "ddump-asm",          	 setDumpFlag Opt_D_dump_asm)
1054 1055
  ,  ( "ddump-asm-native",       setDumpFlag Opt_D_dump_asm_native)
  ,  ( "ddump-asm-liveness",     setDumpFlag Opt_D_dump_asm_liveness)
1056
  ,  ( "ddump-asm-coalesce",     setDumpFlag Opt_D_dump_asm_coalesce)
1057
  ,  ( "ddump-asm-regalloc",     setDumpFlag Opt_D_dump_asm_regalloc)
1058
  ,  ( "ddump-asm-conflicts",    setDumpFlag Opt_D_dump_asm_conflicts)
1059 1060
  ,  ( "ddump-asm-regalloc-stages",
                                 setDumpFlag Opt_D_dump_asm_regalloc_stages)
1061
  ,  ( "ddump-asm-stats",        setDumpFlag Opt_D_dump_asm_stats)
1062 1063 1064 1065 1066 1067
  ,  ( "ddump-cpranal",      	 setDumpFlag Opt_D_dump_cpranal)
  ,  ( "ddump-deriv",        	 setDumpFlag Opt_D_dump_deriv)
  ,  ( "ddump-ds",           	 setDumpFlag Opt_D_dump_ds)
  ,  ( "ddump-flatC",        	 setDumpFlag Opt_D_dump_flatC)
  ,  ( "ddump-foreign",      	 setDumpFlag Opt_D_dump_foreign)
  ,  ( "ddump-inlinings",    	 setDumpFlag Opt_D_dump_inlinings)
1068
  ,  ( "ddump-rule-firings",   	 setDumpFlag Opt_D_dump_rule_firings)
1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082
  ,  ( "ddump-occur-anal",   	 setDumpFlag Opt_D_dump_occur_anal)
  ,  ( "ddump-parsed",       	 setDumpFlag Opt_D_dump_parsed)
  ,  ( "ddump-rn",           	 setDumpFlag Opt_D_dump_rn)
  ,  ( "ddump-simpl",        	 setDumpFlag Opt_D_dump_simpl)
  ,  ( "ddump-simpl-iterations", setDumpFlag Opt_D_dump_simpl_iterations)
  ,  ( "ddump-spec",         	 setDumpFlag Opt_D_dump_spec)
  ,  ( "ddump-prep",          	 setDumpFlag Opt_D_dump_prep)
  ,  ( "ddump-stg",          	 setDumpFlag Opt_D_dump_stg)
  ,  ( "ddump-stranal",      	 setDumpFlag Opt_D_dump_stranal)
  ,  ( "ddump-tc",           	 setDumpFlag Opt_D_dump_tc)
  ,  ( "ddump-types",        	 setDumpFlag Opt_D_dump_types)
  ,  ( "ddump-rules",        	 setDumpFlag Opt_D_dump_rules)
  ,  ( "ddump-cse",          	 setDumpFlag Opt_D_dump_cse)
  ,  ( "ddump-worker-wrapper",   setDumpFlag Opt_D_dump_worker_wrapper)
1083 1084
  ,  ( "ddump-rn-trace",         setDumpFlag Opt_D_dump_rn_trace)
  ,  ( "ddump-if-trace",         setDumpFlag Opt_D_dump_if_trace)
1085 1086
  ,  ( "ddump-tc-trace",         setDumpFlag Opt_D_dump_tc_trace)
  ,  ( "ddump-splices",          setDumpFlag Opt_D_dump_splices)
1087
  ,  ( "ddump-rn-stats",         setDumpFlag Opt_D_dump_rn_stats)
1088 1089 1090 1091 1092 1093 1094
  ,  ( "ddump-opt-cmm",          setDumpFlag Opt_D_dump_opt_cmm)
  ,  ( "ddump-simpl-stats",      setDumpFlag Opt_D_dump_simpl_stats)
  ,  ( "ddump-bcos",             setDumpFlag Opt_D_dump_BCOs)
  ,  ( "dsource-stats",          setDumpFlag Opt_D_source_stats)
  ,  ( "dverbose-core2core",     setDumpFlag Opt_D_verbose_core2core)
  ,  ( "dverbose-stg2stg",       setDumpFlag Opt_D_verbose_stg2stg)
  ,  ( "ddump-hi",               setDumpFlag Opt_D_dump_hi)
1095
  ,  ( "ddump-minimal-imports",  setDumpFlag Opt_D_dump_minimal_imports)
1096
  ,  ( "ddump-vect",         	 setDumpFlag Opt_D_dump_vect)
andy@galois.com's avatar
andy@galois.com committed
1097
  ,  ( "ddump-hpc",         	 setDumpFlag Opt_D_dump_hpc)
1098
  ,  ( "ddump-mod-cycles",     	 setDumpFlag Opt_D_dump_mod_cycles)
1099
  ,  ( "ddump-view-pattern-commoning", setDumpFlag Opt_D_dump_view_pattern_commoning)
1100
  ,  ( "ddump-to-file",          setDumpFlag Opt_DumpToFile)
1101
  ,  ( "ddump-hi-diffs",         NoArg (setDynFlag Opt_D_dump_hi_diffs))
1102 1103 1104
  ,  ( "dcore-lint",       	 NoArg (setDynFlag Opt_DoCoreLinting))
  ,  ( "dstg-lint",        	 NoArg (setDynFlag Opt_DoStgLinting))
  ,  ( "dcmm-lint",		 NoArg (setDynFlag Opt_DoCmmLinting))
Ben.Lippmeier@anu.edu.au's avatar
Ben.Lippmeier@anu.edu.au committed
1105
  ,  ( "dasm-lint",              NoArg (setDynFlag Opt_DoAsmLinting))
1106
  ,  ( "dshow-passes",           NoArg (do setDynFlag Opt_ForceRecomp
1107
				           setVerbosity (Just 2)) )
1108
  ,  ( "dfaststring-stats",	 NoArg (setDynFlag Opt_D_faststring_stats))
1109 1110 1111 1112 1113 1114 1115

	------ Machine dependant (-m<blah>) stuff ---------------------------

  ,  ( "monly-2-regs", 	NoArg (upd (\s -> s{stolen_x86_regs = 2}) ))
  ,  ( "monly-3-regs", 	NoArg (upd (\s -> s{stolen_x86_regs = 3}) ))
  ,  ( "monly-4-regs", 	NoArg (upd (\s -> s{stolen_x86_regs = 4}) ))

Ian Lynagh's avatar
Ian Lynagh committed
1116 1117 1118 1119 1120 1121 1122
     ------ Warning opts -------------------------------------------------
  ,  ( "W"     , NoArg (mapM_ setDynFlag   minusWOpts)    )
  ,  ( "Werror", NoArg (setDynFlag         Opt_WarnIsError) )
  ,  ( "Wwarn" , NoArg (unSetDynFlag       Opt_WarnIsError) )
  ,  ( "Wall"  , NoArg (mapM_ setDynFlag   minusWallOpts) )
  ,  ( "Wnot"  , NoArg (mapM_ unSetDynFlag minusWallOpts) ) -- DEPRECATED
  ,  ( "w"     , NoArg (mapM_ unSetDynFlag minuswRemovesOpts) )
1123 1124

	------ Optimisation flags ------------------------------------------
1125
  ,  ( "O"	, NoArg (upd (setOptLevel 1)))
1126
  ,  ( "Onot"	, NoArg (upd (setOptLevel 0))) -- deprecated
1127 1128
  ,  ( "O"	, OptIntSuffix (\mb_n -> upd (setOptLevel (mb_n `orElse` 1))))
		-- If the number is missing, use 1
1129

1130 1131
  ,  ( "fmax-simplifier-iterations", IntSuffix (\n -> 
		upd (\dfs -> dfs{ maxSimplIterations = n })) )
1132 1133 1134 1135 1136

	-- liberate-case-threshold is an old flag for '-fspec-threshold'
  ,  ( "fspec-threshold",          IntSuffix (\n -> upd (\dfs -> dfs{ specThreshold = n })))
  ,  ( "fliberate-case-threshold", IntSuffix (\n -> upd (\dfs -> dfs{ specThreshold = n })))

1137 1138
  ,  ( "frule-check", SepArg (\s -> upd (\dfs -> dfs{ ruleCheck = Just s })))
  ,  ( "fcontext-stack"	, IntSuffix $ \n -> upd $ \dfs -> dfs{ ctxtStkDepth = n })
1139 1140 1141

        ------ Compiler flags -----------------------------------------------

1142 1143 1144
  ,  ( "fasm",             NoArg (setObjTarget HscAsm) )
  ,  ( "fvia-c",           NoArg (setObjTarget HscC) )
  ,  ( "fvia-C",           NoArg (setObjTarget HscC) )
1145

1146 1147 1148
  ,  ( "fno-code",         NoArg (setTarget HscNothing))
  ,  ( "fbyte-code",       NoArg (setTarget HscInterpreted) )
  ,  ( "fobject-code",     NoArg (setTarget defaultHscTarget) )
1149 1150 1151 1152

  ,  ( "fglasgow-exts",    NoArg (mapM_ setDynFlag   glasgowExtsFlags) )
  ,  ( "fno-glasgow-exts", NoArg (mapM_ unSetDynFlag glasgowExtsFlags) )

1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163
     -- the rest of the -f* and -fno-* flags
  ,