Implement -fwarn-dodgy-imports
[ghc-hetmet.git] / compiler / main / DynFlags.hs
index 063f102..28943ab 100644 (file)
@@ -92,6 +92,7 @@ data DynFlag
 
    -- debugging flags
    = Opt_D_dump_cmm
+   | Opt_D_dump_cps_cmm
    | Opt_D_dump_asm
    | Opt_D_dump_cpranal
    | Opt_D_dump_deriv
@@ -165,8 +166,8 @@ data DynFlag
    | Opt_MonomorphismRestriction
    | Opt_MonoPatBinds
    | Opt_ExtendedDefaultRules          -- Use GHC's extended rules for defaulting
-   | Opt_GlasgowExts
    | Opt_FFI
+   | Opt_UnliftedFFITypes
    | Opt_PArr                          -- Syntactic support for parallel arrays
    | Opt_Arrows                                -- Arrow-notation syntax
    | Opt_TH
@@ -174,6 +175,7 @@ data DynFlag
    | Opt_Generics
    | Opt_ImplicitPrelude 
    | Opt_ScopedTypeVariables
+   | Opt_UnboxedTuples
    | Opt_BangPatterns
    | Opt_TypeFamilies
    | Opt_OverloadedStrings
@@ -182,6 +184,31 @@ data DynFlag
    | Opt_RecordPuns
    | Opt_GADTs
    | Opt_RelaxedPolyRec                        -- -X=RelaxedPolyRec
+   | Opt_StandaloneDeriving
+   | Opt_DeriveDataTypeable
+   | Opt_TypeSynonymInstances
+   | Opt_FlexibleContexts
+   | Opt_FlexibleInstances
+   | Opt_ConstrainedClassMethods
+   | Opt_MultiParamTypeClasses
+   | Opt_FunctionalDependencies
+   | Opt_UnicodeSyntax
+   | Opt_PolymorphicComponents
+   | Opt_ExistentialQuantification
+   | Opt_MagicHash
+   | Opt_EmptyDataDecls
+   | Opt_KindSignatures
+   | Opt_PatternSignatures
+   | Opt_ParallelListComp
+   | Opt_GeneralizedNewtypeDeriving
+   | Opt_RecursiveDo
+   | Opt_PatternGuards
+   | Opt_PartiallyAppliedClosedTypeSynonyms
+   | Opt_Rank2Types
+   | Opt_RankNTypes
+   | Opt_TypeOperators
+
+   | Opt_PrintExplicitForalls
 
    -- optimisation opts
    | Opt_Strictness
@@ -199,9 +226,9 @@ data DynFlag
    | Opt_UnboxStrictFields
    | Opt_DictsCheap
    | Opt_RewriteRules
+   | Opt_Vectorise
 
    -- misc opts
-   | Opt_ShortGhciBanner
    | Opt_Cpp
    | Opt_Pp
    | Opt_ForceRecomp
@@ -649,6 +676,7 @@ data CoreToDo               -- These are diff core-to-core passes,
   | CoreCSE
   | CoreDoRuleCheck Int{-CompilerPhase-} String        -- Check for non-application of rules 
                                                -- matching this string
+  | CoreDoVectorisation
   | CoreDoNothing               -- Useful when building up 
   | CoreDoPasses [CoreToDo]     -- lists of these things
 
@@ -684,6 +712,7 @@ getCoreToDo dflags
     spec_constr   = dopt Opt_SpecConstr dflags
     liberate_case = dopt Opt_LiberateCase dflags
     rule_check    = ruleCheck dflags
+    vectorisation = dopt Opt_Vectorise dflags
 
     core_todo = 
      if opt_level == 0 then
@@ -711,6 +740,15 @@ getCoreToDo dflags
            MaxSimplifierIterations max_iter
        ],
 
+
+        -- 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]]),
+
        -- Specialisation is best done before full laziness
        -- so that overloaded functions have all their dictionary lambdas manifest
        CoreDoSpecialising,
@@ -843,8 +881,6 @@ dynamic_flags = [
   ,  ( "F"             , NoArg  (setDynFlag Opt_Pp))
   ,  ( "#include"      , HasArg (addCmdlineHCInclude) )
   ,  ( "v"             , OptIntSuffix setVerbosity )
-  ,  ( "short-ghci-banner", NoArg (setDynFlag Opt_ShortGhciBanner) )
-  ,  ( "long-ghci-banner" , NoArg (unSetDynFlag Opt_ShortGhciBanner) )
 
         ------- Specific phases  --------------------------------------------
   ,  ( "pgmL"           , HasArg (upd . setPgmL) )  
@@ -940,6 +976,7 @@ dynamic_flags = [
   ,  ( "dstg-stats",   NoArg (setDynFlag Opt_StgStats))
 
   ,  ( "ddump-cmm",             setDumpFlag Opt_D_dump_cmm)
+  ,  ( "ddump-cps-cmm",                 setDumpFlag Opt_D_dump_cps_cmm)
   ,  ( "ddump-asm",             setDumpFlag Opt_D_dump_asm)
   ,  ( "ddump-cpranal",         setDumpFlag Opt_D_dump_cpranal)
   ,  ( "ddump-deriv",           setDumpFlag Opt_D_dump_deriv)
@@ -973,13 +1010,13 @@ dynamic_flags = [
   ,  ( "dsource-stats",          setDumpFlag Opt_D_source_stats)
   ,  ( "dverbose-core2core",     setDumpFlag Opt_D_verbose_core2core)
   ,  ( "dverbose-stg2stg",       setDumpFlag Opt_D_verbose_stg2stg)
-  ,  ( "ddump-hi-diffs",         setDumpFlag Opt_D_dump_hi_diffs)
   ,  ( "ddump-hi",               setDumpFlag Opt_D_dump_hi)
   ,  ( "ddump-minimal-imports",  setDumpFlag Opt_D_dump_minimal_imports)
   ,  ( "ddump-vect",            setDumpFlag Opt_D_dump_vect)
   ,  ( "ddump-hpc",             setDumpFlag Opt_D_dump_hpc)
   ,  ( "ddump-mod-cycles",              setDumpFlag Opt_D_dump_mod_cycles)
   
+  ,  ( "ddump-hi-diffs",         NoArg (setDynFlag Opt_D_dump_hi_diffs))
   ,  ( "dcore-lint",            NoArg (setDynFlag Opt_DoCoreLinting))
   ,  ( "dstg-lint",             NoArg (setDynFlag Opt_DoStgLinting))
   ,  ( "dcmm-lint",             NoArg (setDynFlag Opt_DoCmmLinting))
@@ -1018,7 +1055,7 @@ dynamic_flags = [
 
         ------ Compiler flags -----------------------------------------------
 
-  ,  ( "fasm",         AnySuffix (\_ -> setObjTarget HscAsm) )
+  ,  ( "fasm",         NoArg (setObjTarget HscAsm) )
   ,  ( "fvia-c",       NoArg (setObjTarget HscC) )
   ,  ( "fvia-C",       NoArg (setObjTarget HscC) )
 
@@ -1045,6 +1082,7 @@ dynamic_flags = [
 -- these -f<blah> flags can all be reversed with -fno-<blah>
 
 fFlags = [
+  ( "warn-dodgy-imports",              Opt_WarnDodgyImports ),
   ( "warn-duplicate-exports",          Opt_WarnDuplicateExports ),
   ( "warn-hi-shadowing",               Opt_WarnHiShadows ),
   ( "warn-implicit-prelude",            Opt_WarnImplicitPrelude ),
@@ -1064,6 +1102,7 @@ fFlags = [
   ( "warn-deprecations",               Opt_WarnDeprecations ),
   ( "warn-orphans",                    Opt_WarnOrphans ),
   ( "warn-tabs",                       Opt_WarnTabs ),
+  ( "print-explicit-foralls", Opt_PrintExplicitForalls ),
   ( "strictness",                      Opt_Strictness ),
   ( "full-laziness",                   Opt_FullLaziness ),
   ( "liberate-case",                   Opt_LiberateCase ),
@@ -1084,21 +1123,38 @@ fFlags = [
   ( "force-recomp",                    Opt_ForceRecomp ),
   ( "hpc-no-auto",                     Opt_Hpc_No_Auto ),
   ( "rewrite-rules",                   Opt_RewriteRules ),
-  ( "break-on-exception",               Opt_BreakOnException )
+  ( "break-on-exception",               Opt_BreakOnException ),
+  ( "vectorise",                        Opt_Vectorise )
   ]
 
 
 -- These -X<blah> flags can all be reversed with -Xno-<blah>
 xFlags :: [(String, DynFlag)]
 xFlags = [
+  ( "CPP",                              Opt_Cpp ),
+  ( "PatternGuards",                    Opt_PatternGuards ),
+  ( "UnicodeSyntax",                    Opt_UnicodeSyntax ),
+  ( "MagicHash",                        Opt_MagicHash ),
+  ( "PolymorphicComponents",            Opt_PolymorphicComponents ),
+  ( "ExistentialQuantification",        Opt_ExistentialQuantification ),
+  ( "KindSignatures",                   Opt_KindSignatures ),
+  ( "PatternSignatures",                Opt_PatternSignatures ),
+  ( "EmptyDataDecls",                   Opt_EmptyDataDecls ),
+  ( "ParallelListComp",                 Opt_ParallelListComp ),
   ( "FI",                              Opt_FFI ),  -- support `-ffi'...
   ( "FFI",                             Opt_FFI ),  -- ...and also `-fffi'
-  ( "ForeignFunctionInterface",                Opt_FFI ),  -- ...and also `-fffi'
-
+  ( "ForeignFunctionInterface",                Opt_FFI ),
+  ( "UnliftedFFITypes",                 Opt_UnliftedFFITypes ),
+
+  ( "PartiallyAppliedClosedTypeSynonyms", Opt_PartiallyAppliedClosedTypeSynonyms ),
+  ( "Rank2Types",                       Opt_Rank2Types ),
+  ( "RankNTypes",                       Opt_RankNTypes ),
+  ( "TypeOperators",                    Opt_TypeOperators ),
+  ( "RecursiveDo",                      Opt_RecursiveDo ),
   ( "Arrows",                          Opt_Arrows ), -- arrow syntax
   ( "Parr",                            Opt_PArr ),
 
-  ( "TH",                              Opt_TH ),
+  ( "TH",                              Opt_TH ), -- support -fth
   ( "TemplateHaskelll",                        Opt_TH ),
 
   ( "Generics",                        Opt_Generics ),
@@ -1119,6 +1175,16 @@ xFlags = [
   ( "ExtendedDefaultRules",            Opt_ExtendedDefaultRules ),
   ( "ImplicitParams",                  Opt_ImplicitParams ),
   ( "ScopedTypeVariables",             Opt_ScopedTypeVariables ),
+  ( "UnboxedTuples",                Opt_UnboxedTuples ),
+  ( "StandaloneDeriving",           Opt_StandaloneDeriving ),
+  ( "DeriveDataTypeable",           Opt_DeriveDataTypeable ),
+  ( "TypeSynonymInstances",         Opt_TypeSynonymInstances ),
+  ( "FlexibleContexts",             Opt_FlexibleContexts ),
+  ( "FlexibleInstances",            Opt_FlexibleInstances ),
+  ( "ConstrainedClassMethods",      Opt_ConstrainedClassMethods ),
+  ( "MultiParamTypeClasses",        Opt_MultiParamTypeClasses ),
+  ( "FunctionalDependencies",        Opt_FunctionalDependencies ),
+  ( "GeneralizedNewtypeDeriving",   Opt_GeneralizedNewtypeDeriving ),
   ( "AllowOverlappingInstances",       Opt_AllowOverlappingInstances ),
   ( "AllowUndecidableInstances",       Opt_AllowUndecidableInstances ),
   ( "AllowIncoherentInstances",        Opt_AllowIncoherentInstances )
@@ -1129,11 +1195,36 @@ impliedFlags = [
   ( Opt_GADTs, [Opt_RelaxedPolyRec] )  -- We want type-sig variables to be completely rigid for GADTs
   ]
 
-glasgowExtsFlags = [ Opt_GlasgowExts 
+glasgowExtsFlags = [
+             Opt_PrintExplicitForalls
                   , Opt_FFI 
+           , Opt_UnliftedFFITypes
                   , Opt_GADTs
                   , Opt_ImplicitParams 
                   , Opt_ScopedTypeVariables
+           , Opt_UnboxedTuples
+           , Opt_TypeSynonymInstances
+           , Opt_StandaloneDeriving
+           , Opt_DeriveDataTypeable
+           , Opt_FlexibleContexts
+           , Opt_FlexibleInstances
+           , Opt_ConstrainedClassMethods
+           , Opt_MultiParamTypeClasses
+           , Opt_FunctionalDependencies
+                  , Opt_MagicHash
+           , Opt_PolymorphicComponents
+           , Opt_ExistentialQuantification
+           , Opt_UnicodeSyntax
+           , Opt_PatternGuards
+           , Opt_PartiallyAppliedClosedTypeSynonyms
+           , Opt_RankNTypes
+           , Opt_TypeOperators
+           , Opt_RecursiveDo
+           , Opt_ParallelListComp
+           , Opt_EmptyDataDecls
+           , Opt_KindSignatures
+           , Opt_PatternSignatures
+           , Opt_GeneralizedNewtypeDeriving
                   , Opt_TypeFamilies ]
 
 ------------------
@@ -1430,7 +1521,7 @@ machdepCCOpts dflags
               sta = opt_Static
           in
                    ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else ""
---                    , if suffixMatch "mingw32" cTARGETPLATFORM then "-mno-cygwin" else "" 
+--                    , if "mingw32" `isSuffixOf` cTARGETPLATFORM then "-mno-cygwin" else "" 
                      ],
                      [ "-fno-defer-pop",
 #ifdef HAVE_GCC_MNO_OMIT_LFPTR