[project @ 2004-08-13 13:04:50 by simonmar]

[ghc-hetmet.git] / ghc / compiler / main / DriverPhases.hs

diff --git a/ghc/compiler/main/DriverPhases.hs b/ghc/compiler/main/DriverPhases.hs
index f212947..89a6100 100644 (file)
--- a/ghc/compiler/main/DriverPhases.hs
+++ b/ghc/compiler/main/DriverPhases.hs
@@ -1,5 +1,5 @@
 -----------------------------------------------------------------------------
--- $Id: DriverPhases.hs,v 1.15 2002/01/04 16:02:04 simonmar Exp $
+-- $Id: DriverPhases.hs,v 1.29 2004/08/13 13:06:57 simonmar Exp $
 --
 -- GHC Driver
 --
@@ -7,17 +7,22 @@
 --
 -----------------------------------------------------------------------------
 
-#include "../includes/config.h"
+#include "../includes/ghcconfig.h"
 
 module DriverPhases (
    Phase(..),
+   happensBefore,
    startPhase,         -- :: String -> Phase
    phaseInputExt,      -- :: Phase -> String
 
-   haskellish_file, haskellish_suffix,
-   haskellish_src_file, haskellish_src_suffix,
-   objish_file, objish_suffix,
-   cish_file, cish_suffix
+   isHaskellishFilename, 
+   isHaskellSrcFilename,
+   isObjectFilename,
+   isCishFilename,
+   isExtCoreFilename,
+   isDynLibFilename,
+   isHaskellUserSrcFilename,
+   isSourceFilename         -- :: FilePath -> Bool
  ) where
 
 import DriverUtil
@@ -38,8 +43,7 @@ import DriverUtil
 -}
 
 data Phase 
-       = MkDependHS    -- haskell dependency generation
-       | Unlit
+       = Unlit
        | Cpp
        | HsPp
        | Hsc
@@ -50,18 +54,35 @@ data Phase
        | SplitAs
        | As
        | Ln
+       | CmmCpp        -- pre-process Cmm source
+       | Cmm           -- parse & compile Cmm code
 #ifdef ILX
         | Ilx2Il
        | Ilasm
 #endif
   deriving (Eq, Show)
 
+-- Partial ordering on phases: we want to know which phases will occur before 
+-- which others.  This is used for sanity checking, to ensure that the
+-- pipeline will stop at some point (see DriverPipeline.runPipeline).
+x `happensBefore` y 
+       | x `elem` haskell_pipe = y `elem` tail (dropWhile (/= x) haskell_pipe)
+       | x `elem` cmm_pipe     = y `elem` tail (dropWhile (/= x) cmm_pipe)
+       | x `elem` c_pipe       = y `elem` tail (dropWhile (/= x) c_pipe)
+       | otherwise = False
+
+haskell_post_hsc = [HCc,Mangle,SplitMangle,As,SplitAs,Ln]
+haskell_pipe = Unlit : Cpp : HsPp : Hsc : haskell_post_hsc
+cmm_pipe     = CmmCpp : Cmm : haskell_post_hsc
+c_pipe       = [Cc,As,Ln]
+
 -- the first compilation phase for a given file is determined
 -- by its suffix.
 startPhase "lhs"   = Unlit
 startPhase "hs"    = Cpp
 startPhase "hscpp" = HsPp
 startPhase "hspp"  = Hsc
+startPhase "hcr"   = Hsc
 startPhase "hc"    = HCc
 startPhase "c"     = Cc
 startPhase "cpp"   = Cc
@@ -72,6 +93,8 @@ startPhase "raw_s" = Mangle
 startPhase "s"     = As
 startPhase "S"     = As
 startPhase "o"     = Ln
+startPhase "cmm"   = CmmCpp
+startPhase "cmmcpp" = Cmm
 startPhase _       = Ln           -- all unknown file types
 
 -- the output suffix for a given phase is uniquely determined by
@@ -87,23 +110,44 @@ phaseInputExt SplitMangle = "split_s"      -- not really generated
 phaseInputExt As          = "s"
 phaseInputExt SplitAs     = "split_s"   -- not really generated
 phaseInputExt Ln          = "o"
-phaseInputExt MkDependHS  = "dep"
+phaseInputExt CmmCpp     = "cmm"
+phaseInputExt Cmm        = "cmmcpp"
 #ifdef ILX
 phaseInputExt Ilx2Il      = "ilx"
 phaseInputExt Ilasm       = "il"
 #endif
 
-haskellish_suffix     = (`elem` [ "hs", "hspp", "hscpp", "lhs", "hc", "raw_s" ])
-haskellish_src_suffix = (`elem` [ "hs", "hspp", "hscpp", "lhs" ])
-cish_suffix           = (`elem` [ "c", "cpp", "C", "cc", "cxx", "s", "S" ])
+haskellish_suffixes          = [ "hs", "lhs", "hspp", "hscpp", "hcr", "hc", "raw_s", "cmm" ]
+haskellish_src_suffixes      = [ "hs", "lhs", "hspp", "hscpp", "hcr", "cmm" ]
+cish_suffixes                = [ "c", "cpp", "C", "cc", "cxx", "s", "S" ]
+extcoreish_suffixes          = [ "hcr" ]
+haskellish_user_src_suffixes = [ "hs", "lhs" ]
 
+-- Use the appropriate suffix for the system on which 
+-- the GHC-compiled code will run
 #if mingw32_TARGET_OS || cygwin32_TARGET_OS
-objish_suffix     = (`elem` [ "o", "O", "obj", "OBJ" ])
+objish_suffixes     = [ "o", "O", "obj", "OBJ" ]
+#else
+objish_suffixes     = [ "o" ]
+#endif
+
+#ifdef mingw32_TARGET_OS
+dynlib_suffixes = ["dll", "DLL"]
+#elif defined(darwin_TARGET_OS)
+dynlib_suffixes = ["dylib"]
 #else
-objish_suffix     = (`elem` [ "o" ])
+dynlib_suffixes = ["so"]
 #endif
 
-haskellish_file     = haskellish_suffix     . getFileSuffix
-haskellish_src_file = haskellish_src_suffix . getFileSuffix
-cish_file           = cish_suffix           . getFileSuffix
-objish_file         = objish_suffix         . getFileSuffix
+isHaskellishFilename     f = getFileSuffix f `elem` haskellish_suffixes
+isHaskellSrcFilename     f = getFileSuffix f `elem` haskellish_src_suffixes
+isCishFilename           f = getFileSuffix f `elem` cish_suffixes
+isExtCoreFilename        f = getFileSuffix f `elem` extcoreish_suffixes
+isObjectFilename         f = getFileSuffix f `elem` objish_suffixes
+isHaskellUserSrcFilename f = getFileSuffix f `elem` haskellish_user_src_suffixes
+isDynLibFilename        f = getFileSuffix f `elem` dynlib_suffixes
+
+isSourceFilename :: FilePath -> Bool
+isSourceFilename f  =
+   isHaskellishFilename f ||
+   isCishFilename f